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 <lustre/lustreapi.h>
  75 #include <linux/lustre/lustre_ver.h>
  76 #include <linux/lustre/lustre_param.h>
  77 #include <linux/lnet/nidstr.h>
  78 #include <cyaml.h>
  79
  80 #ifndef ARRAY_SIZE
  81 # define ARRAY_SIZE(a) ((sizeof(a)) / (sizeof((a)[0])))
  82 #endif /* !ARRAY_SIZE */
  83
  84 /* all functions */
  85 static int lfs_find(int argc, char **argv);
  86 static int lfs_getstripe(int argc, char **argv);
  87 static int lfs_getdirstripe(int argc, char **argv);
  88 static int lfs_setdirstripe(int argc, char **argv);
  89 static int lfs_rmentry(int argc, char **argv);
  90 static int lfs_osts(int argc, char **argv);
  91 static int lfs_mdts(int argc, char **argv);
  92 static int lfs_df(int argc, char **argv);
  93 static int lfs_getname(int argc, char **argv);
  94 static int lfs_check(int argc, char **argv);
  95 #ifdef HAVE_SYS_QUOTA_H
  96 static int lfs_setquota(int argc, char **argv);
  97 static int lfs_quota(int argc, char **argv);
  98 static int lfs_project(int argc, char **argv);
  99 #endif
 100 static int lfs_flushctx(int argc, char **argv);
 101 static int lfs_poollist(int argc, char **argv);
 102 static int lfs_changelog(int argc, char **argv);
 103 static int lfs_changelog_clear(int argc, char **argv);
 104 static int lfs_fid2path(int argc, char **argv);
 105 static int lfs_path2fid(int argc, char **argv);
 106 static int lfs_data_version(int argc, char **argv);
 107 static int lfs_hsm_state(int argc, char **argv);
 108 static int lfs_hsm_set(int argc, char **argv);
 109 static int lfs_hsm_clear(int argc, char **argv);
 110 static int lfs_hsm_action(int argc, char **argv);
 111 static int lfs_hsm_archive(int argc, char **argv);
 112 static int lfs_hsm_restore(int argc, char **argv);
 113 static int lfs_hsm_release(int argc, char **argv);
 114 static int lfs_hsm_remove(int argc, char **argv);
 115 static int lfs_hsm_cancel(int argc, char **argv);
 116 static int lfs_swap_layouts(int argc, char **argv);
 117 static int lfs_mv(int argc, char **argv);
 118 static int lfs_ladvise(int argc, char **argv);
 119 static int lfs_getsom(int argc, char **argv);
 120 static int lfs_heat_get(int argc, char **argv);
 121 static int lfs_heat_set(int argc, char **argv);
 122 static int lfs_mirror(int argc, char **argv);
 123 static int lfs_mirror_list_commands(int argc, char **argv);
 124 static int lfs_list_commands(int argc, char **argv);
 125 static inline int lfs_mirror_resync(int argc, char **argv);
 126 static inline int lfs_mirror_verify(int argc, char **argv);
 127 static inline int lfs_mirror_read(int argc, char **argv);
 128 static inline int lfs_mirror_write(int argc, char **argv);
 129 static inline int lfs_mirror_copy(int argc, char **argv);
 130 static int lfs_pcc_attach(int argc, char **argv);
 131 static int lfs_pcc_attach_fid(int argc, char **argv);
 132 static int lfs_pcc_detach(int argc, char **argv);
 133 static int lfs_pcc_detach_fid(int argc, char **argv);
 134 static int lfs_pcc_state(int argc, char **argv);
 135 static int lfs_pcc(int argc, char **argv);
 136 static int lfs_pcc_list_commands(int argc, char **argv);
 137
 138 enum setstripe_origin {
 139         SO_SETSTRIPE,
 140         SO_MIGRATE,
 141         SO_MIGRATE_MDT,
 142         SO_MIRROR_CREATE,
 143         SO_MIRROR_EXTEND,
 144         SO_MIRROR_SPLIT,
 145 };
 146 static int lfs_setstripe_internal(int argc, char **argv,
 147                                   enum setstripe_origin opc);
 148
 149 static inline int lfs_setstripe(int argc, char **argv)
 150 {
 151         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 152 }
 153 static inline int lfs_setstripe_migrate(int argc, char **argv)
 154 {
 155         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 156 }
 157 static inline int lfs_mirror_create(int argc, char **argv)
 158 {
 159         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 160 }
 161 static inline int lfs_mirror_extend(int argc, char **argv)
 162 {
 163         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 164 }
 165 static inline int lfs_mirror_split(int argc, char **argv)
 166 {
 167         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 168 }
 169
 170 /* Setstripe and migrate share mostly the same parameters */
 171 #define SSM_CMD_COMMON(cmd) \
 172         "usage: "cmd" [--component-end|-E <comp_end>]\n"                \
 173         "                 [--stripe-count|-c <stripe_count>]\n"         \
 174         "                 [--overstripe-count|-C <stripe_count>]\n"     \
 175         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 176         "                 [--stripe-size|-S <stripe_size>]\n"           \
 177         "                 [--layout|-L <pattern>]\n"                    \
 178         "                 [--pool|-p <pool_name>]\n"                    \
 179         "                 [--ost|-o <ost_indices>]\n"                   \
 180         "                 [--yaml|-y <yaml_template_file>]\n"           \
 181         "                 [--copy=<lustre_src>]\n"
 182
 183 #define SSM_HELP_COMMON \
 184         "\tstripe_count: Number of OSTs to stripe over (0=fs default, -1 all)\n" \
 185         "\t              Using -C instead of -c allows overstriping, which\n" \
 186          "\t             will place more than one stripe per OST if\n" \
 187          "\t             stripe_count is greater than the number of OSTs\n" \
 188         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 189         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n" \
 190         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 191         "\t              respectively)\n"                               \
 192         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 193         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"\
 194         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 195         "\t              Indices be specified in a format of:\n"        \
 196         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 197         "\t              Or:\n"                                         \
 198         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 199         "\t              If --pool is set with --ost, then the OSTs\n"  \
 200         "\t              must be the members of the pool.\n"            \
 201         "\tcomp_end:     Extent end of component, start after previous end.\n"\
 202         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 203         "\t              respectively, -1 for EOF). Must be a multiple of\n"\
 204         "\t              stripe_size.\n"                                      \
 205         "\tyaml_template_file:\n"                                             \
 206         "\t              YAML layout template file, can't be used with -c,\n" \
 207         "\t              -i, -S, -p, -o, or -E arguments.\n"                  \
 208         "\tlustre_src:   Lustre file/dir whose layout info is used to set\n"  \
 209         "\t              another lustre file or directory, can't used with\n" \
 210         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 211
 212 #define MIRROR_CREATE_HELP                                                     \
 213         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 214         "\t              setstripe layout options\n"                           \
 215         "\t              It defaults to 1 if not specified; if specified,\n"   \
 216         "\t              it must follow the option without a space.\n"         \
 217         "\t              The option can also be repeated multiple times to\n"  \
 218         "\t              separate mirrors that have different layouts.\n"      \
 219         "\tsetstripe options: Mirror layout\n"                                 \
 220         "\t              It can be a plain layout or a composite layout.\n"    \
 221         "\t              If not specified, the stripe options inherited\n"     \
 222         "\t              from the previous component will be used.\n"          \
 223         "\tflags:        set flags to the component of the current mirror.\n"  \
 224         "\t              Only \"prefer\" flag is supported so far.\n"
 225
 226 #define MIRROR_EXTEND_HELP                                                     \
 227         MIRROR_CREATE_HELP                                                     \
 228         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 229         "\t              as a mirror added to the mirrored file.\n"            \
 230         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 231         "\t              from victim file(s) in case the victim file(s)\n"     \
 232         "\t              contains the same data as the original mirrored\n"    \
 233         "\t              file.\n"
 234
 235 #define MIRROR_EXTEND_USAGE                                                    \
 236         "                 <--mirror-count|-N[mirror_count]>\n"                 \
 237         "                 [setstripe options|-f <victim_file>]\n"              \
 238         "                 [--no-verify]\n"
 239
 240 #define SETSTRIPE_USAGE                                                 \
 241         SSM_CMD_COMMON("setstripe")                                     \
 242         MIRROR_EXTEND_USAGE                                             \
 243         "                 <directory|filename>\n"                       \
 244         SSM_HELP_COMMON                                                 \
 245         MIRROR_EXTEND_HELP
 246
 247 #define MIGRATE_USAGE                                                   \
 248         SSM_CMD_COMMON("migrate  ")                                     \
 249         "                 [--block|-b] [--non-block|-n]\n"              \
 250         "                 [--non-direct|-D] [--verbose|-v]\n"           \
 251         "                 <filename>\n"                                 \
 252         SSM_HELP_COMMON                                                 \
 253         "\n"                                                            \
 254         "\tblock:        Block file access during data migration (default)\n" \
 255         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 256         "\tnon-direct:   Do not use direct I/O to copy file contents\n" \
 257         "\tverbose:      Print each filename as it is migrated\n"       \
 258
 259 #define SETDIRSTRIPE_USAGE                                              \
 260         "               [--mdt-count|-c stripe_count>\n"                \
 261         "               [--mdt-hash|-H mdt_hash]\n"                     \
 262         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 263         "               [--default|-D] [--mode|-o mode] <dir>\n"        \
 264         "\tstripe_count: stripe count of the striped directory\n"       \
 265         "\tmdt_index: MDT index of first stripe\n"                      \
 266         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 267         "       fnv_1a_64 FNV-1a hash algorithm (default)\n"            \
 268         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 269         "       space     create subdirectories with balanced space usage\n" \
 270         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 271         "\tmode: the file access permission of the directory (octal)\n" \
 272         "To create dir with a foreign (free format) layout :\n" \
 273         "setdirstripe|mkdir --foreign[=<foreign_type>] -x|-xattr <string> " \
 274                 "[--mode|-m mode] [--flags <hex>] <dir>\n" \
 275         "\tmode: the mode of the directory\n" \
 276         "\tforeign_type: none or daos\n"
 277
 278 /**
 279  * command_t mirror_cmdlist - lfs mirror commands.
 280  */
 281 command_t mirror_cmdlist[] = {
 282         { .pc_name = "create", .pc_func = lfs_mirror_create,
 283           .pc_help = "Create a mirrored file.\n"
 284                 "usage: lfs mirror create "
 285                 "<--mirror-count|-N[mirror_count]> "
 286                 "[setstripe options] ... <filename|directory>\n"
 287           MIRROR_CREATE_HELP },
 288         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 289           .pc_help = "Extend a mirrored file.\n"
 290                 "usage: lfs mirror extend "
 291                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 292                 "[setstripe options|-f <victim_file>] ... <filename>\n"
 293           MIRROR_EXTEND_HELP },
 294         { .pc_name = "split", .pc_func = lfs_mirror_split,
 295           .pc_help = "Split a mirrored file.\n"
 296         "usage: lfs mirror split <--mirror-id <mirror_id> | \n"
 297         "\t             <--component-id|-I <comp_id>> [--destroy|-d] \n"
 298         "\t             [-f <new_file>] <mirrored file>\n"
 299         "\tmirror_id:   The numerical unique identifier for a mirror. It\n"
 300         "\t             can be fetched by lfs getstripe command.\n"
 301         "\tcomp_id:     Unique component ID within a mirror.\n"
 302         "\tnew_file:    This option indicates the layout of the split\n"
 303         "\t             mirror will be stored into. If not specified,\n"
 304         "\t             a new file named <mirrored_file>.mirror~<mirror_id>\n"
 305         "\t             will be used.\n" },
 306         { .pc_name = "read", .pc_func = lfs_mirror_read,
 307           .pc_help = "Read the content of a specified mirror of a file.\n"
 308                 "usage: lfs mirror read <--mirror-id|-N <mirror_id> "
 309                 "[--outfile|-o <output_file>] <mirrored_file>\n" },
 310         { .pc_name = "write", .pc_func = lfs_mirror_write,
 311           .pc_help = "Write to a specified mirror of a file.\n"
 312                 "usage: lfs mirror write <--mirror-id|-N <mirror_id> "
 313                 "[--inputfile|-i <input_file>] <mirrored_file>\n" },
 314         { .pc_name = "copy", .pc_func = lfs_mirror_copy,
 315           .pc_help = "Copy a specified mirror to other mirror(s) of a file.\n"
 316                 "usage: lfs mirror copy <--read-mirror|-i <id0>> "
 317                 "<--write-mirror|-o <id1,id2>> <mirrored_file>\n" },
 318         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 319           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 320                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 321                 "<mirrored file> [<mirrored file2>...]\n"},
 322         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 323           .pc_help = "Verify mirrored file(s).\n"
 324                 "usage: lfs mirror verify "
 325                 "[--only <mirror_id,mirror_id2[,...]>] "
 326                 "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
 327         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 328           .pc_help = "list commands supported by lfs mirror"},
 329         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 330         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 331         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 332         { .pc_help = NULL }
 333 };
 334
 335 /**
 336  * command_t pcc_cmdlist - lfs pcc commands.
 337  */
 338 command_t pcc_cmdlist[] = {
 339         { .pc_name = "attach", .pc_func = lfs_pcc_attach,
 340           .pc_help = "Attach given files to the Persistent Client Cache.\n"
 341                 "usage: lfs pcc attach <--id|-i NUM> <file> ...\n"
 342                 "\t-i: archive id for RW-PCC\n" },
 343         { .pc_name = "attach_fid", .pc_func = lfs_pcc_attach_fid,
 344           .pc_help = "Attach given files into PCC by FID(s).\n"
 345                 "usage: lfs pcc attach_id <--id|-i NUM> <--mnt|-m mnt> "
 346                 "<fid> ...\n"
 347                 "\t-i: archive id for RW-PCC\n"
 348                 "\t-m: Lustre mount point\n" },
 349         { .pc_name = "state", .pc_func = lfs_pcc_state,
 350           .pc_help = "Display the PCC state for given files.\n"
 351                 "usage: lfs pcc state <file> ...\n" },
 352         { .pc_name = "detach", .pc_func = lfs_pcc_detach,
 353           .pc_help = "Detach given files from the Persistent Client Cache.\n"
 354                 "usage: lfs pcc detach <file> ...\n" },
 355         { .pc_name = "detach_fid", .pc_func = lfs_pcc_detach_fid,
 356           .pc_help = "Detach given files from PCC by FID(s).\n"
 357                 "usage: lfs pcc detach_fid <mntpath> <fid>...\n" },
 358         { .pc_name = "list-commands", .pc_func = lfs_pcc_list_commands,
 359           .pc_help = "list commands supported by lfs pcc"},
 360         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 361         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 362         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 363         { .pc_help = NULL }
 364 };
 365
 366 /* all available commands */
 367 command_t cmdlist[] = {
 368         {"setstripe", lfs_setstripe, 0,
 369          "To create a file with specified striping/composite layout, or\n"
 370          "create/replace the default layout on an existing directory:\n"
 371          SSM_CMD_COMMON("setstripe")
 372          "                 [--mode <mode>]\n"
 373          "                 <directory|filename>\n"
 374          " or\n"
 375          "To add component(s) to an existing composite file:\n"
 376          SSM_CMD_COMMON("setstripe --component-add")
 377          SSM_HELP_COMMON
 378          "To totally delete the default striping from an existing directory:\n"
 379          "usage: setstripe -d <directory>\n"
 380          " or\n"
 381          "To create a mirrored file or set s default mirror layout on a directory:\n"
 382          "usage: setstripe -N[mirror_count] [STRIPE_OPTIONS] <directory|filename>\n"
 383          " or\n"
 384          "To delete the last component(s) from an existing composite file\n"
 385          "(note that this will also delete any data in those components):\n"
 386          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 387          "                               [--component-flags|-F <comp_flags>]\n"
 388          "                               <filename>\n"
 389          "\tcomp_id:     Unique component ID to delete\n"
 390          "\tcomp_flags:  'init' indicating all instantiated components\n"
 391          "\t             '^init' indicating all uninstantiated components\n"
 392          "\t-I and -F cannot be specified at the same time\n"
 393          "To create a file with a foreign (free format) layout:\n"
 394          "usage: setstripe --foreign[=<foreign_type>]\n"
 395          "                 --xattr|-x <layout_string> [--flags <hex>]\n"
 396          "                 [--mode <mode>] <filename>\n"},
 397         {"getstripe", lfs_getstripe, 0,
 398          "To list the layout pattern for a given file or files in a\n"
 399          "directory or recursively for all files in a directory tree.\n"
 400          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 401          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 402          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 403          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 404          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 405          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 406          "                 [--component-flags[=comp_flags]]\n"
 407          "                 [--component-count]\n"
 408          "                 [--component-start[=[+-]comp_start]]\n"
 409          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 410          "                 [[!] --mirror-index=[+-]<index> |\n"
 411          "                  [!] --mirror-id=[+-]<id>]\n"
 412          "                 <directory|filename> ..."},
 413         {"setdirstripe", lfs_setdirstripe, 0,
 414          "To create a striped directory on a specified MDT. This can only\n"
 415          "be done on MDT0 with the right of administrator.\n"
 416          "usage: setdirstripe [OPTION] <directory>\n"
 417          SETDIRSTRIPE_USAGE},
 418         {"getdirstripe", lfs_getdirstripe, 0,
 419          "To list the layout pattern info for a given directory\n"
 420          "or recursively for all directories in a directory tree.\n"
 421          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 422          "                    [--mdt-hash|-H] [--obd|-O <uuid>]\n"
 423          "                    [--recursive|-r] [--yaml|-y]\n"
 424          "                    [--verbose|-v] [--default|-D] <dir> ..."},
 425         {"mkdir", lfs_setdirstripe, 0,
 426          "To create a striped directory on a specified MDT. This can only\n"
 427          "be done on MDT0 with the right of administrator.\n"
 428          "usage: mkdir [OPTION] <directory>\n"
 429          SETDIRSTRIPE_USAGE},
 430         {"rm_entry", lfs_rmentry, 0,
 431          "To remove the name entry of the remote directory. Note: This\n"
 432          "command will only delete the name entry, i.e. the remote directory\n"
 433          "will become inaccessable after this command. This can only be done\n"
 434          "by the administrator\n"
 435          "usage: rm_entry <dir>\n"},
 436         {"pool_list", lfs_poollist, 0,
 437          "List pools or pool OSTs\n"
 438          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 439         {"find", lfs_find, 0,
 440          "find files matching given attributes recursively in directory tree.\n"
 441          "usage: find <directory|filename> ...\n"
 442          "     [[!] --atime|-A [+-]N[smhdwy]] [[!] --ctime|-C [+-]N[smhdwy]]\n"
 443          "     [[!] --mtime|-M [+-]N[smhdwy]] [[!] --blocks|-b N]\n"
 444          "     [--maxdepth|-D N] [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 445          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 446          "     [--print|-P] [--print0|-0] [[!] --size|-s [+-]N[bkMGTPE]]\n"
 447          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 448          "     [[!] --stripe-index|-i <index,...>]\n"
 449          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 450          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 451          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 452          "     [[!] --projid <projid>]\n"
 453          "     [[!] --foreign[=<foreign_type>]]\n"
 454          "     [[!] --layout|-L released,raid0,mdt]\n"
 455          "     [[!] --foreign[=<foreign_type>]]\n"
 456          "     [[!] --component-count [+-]<comp_cnt>]\n"
 457          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 458          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 459          "     [[!] --component-flags <comp_flags>]\n"
 460          "     [[!] --mirror-count|-N [+-]<n>]\n"
 461          "     [[!] --mirror-state <[^]state>]\n"
 462          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 463          "     [[!] --mdt-hash|-H <hashtype>\n"
 464          "     [[!] --mdt-index|-m <uuid|index,...>]\n"
 465          "\t !: used before an option indicates 'NOT' requested attribute\n"
 466          "\t -: used before a value indicates less than requested value\n"
 467          "\t +: used before a value indicates more than requested value\n"
 468          "\thashtype:   hash type of the striped directory.\n"
 469          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 470          "\t            all_char  sum of characters % MDT_COUNT\n"},
 471         {"check", lfs_check, 0,
 472          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 473          "or all the servers (MGTs, MDTs and OSTs).\n"
 474          "usage: check <mgts|osts|mdts|all>"},
 475         {"osts", lfs_osts, 0, "list OSTs connected to client "
 476          "[for specified path only]\n" "usage: osts [path]"},
 477         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 478          "[for specified path only]\n" "usage: mdts [path]"},
 479         {"df", lfs_df, 0,
 480          "report filesystem disk space usage or inodes usage "
 481          "of each MDS and all OSDs or a batch belonging to a specific pool.\n"
 482          "Usage: df [-i] [-h] [--lazy|-l] [--pool|-p <fsname>[.<pool>] [path]"},
 483         {"getname", lfs_getname, 0,
 484          "list instances and specified mount points [for specified path only]\n"
 485          "Usage: getname [--help|-h] [--instance|-i] [--fsname|-n] [path ...]"},
 486 #ifdef HAVE_SYS_QUOTA_H
 487         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 488          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 489          "                -b <block-softlimit> -B <block-hardlimit>\n"
 490          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 491          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 492          "                [--block-softlimit <block-softlimit>]\n"
 493          "                [--block-hardlimit <block-hardlimit>]\n"
 494          "                [--inode-softlimit <inode-softlimit>]\n"
 495          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 496          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 497          "                [--block-grace <block-grace>]\n"
 498          "                [--inode-grace <inode-grace>] <filesystem>\n"
 499          "       setquota <-U|-G|-P>\n"
 500          "                -b <block-softlimit> -B <block-hardlimit>\n"
 501          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 502          "       setquota <-U|--default-usr|-G|--default-grp|-P|--default-prj>\n"
 503          "                [--block-softlimit <block-softlimit>]\n"
 504          "                [--block-hardlimit <block-hardlimit>]\n"
 505          "                [--inode-softlimit <inode-softlimit>]\n"
 506          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 507          "       setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 508          "                <-d|--default>\n"
 509          "       -b can be used instead of --block-softlimit/--block-grace\n"
 510          "       -B can be used instead of --block-hardlimit\n"
 511          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 512          "       -I can be used instead of --inode-hardlimit\n"
 513          "       -d can be used instead of --default\n\n"
 514          "Note: The total quota space will be split into many qunits and\n"
 515          "      balanced over all server targets, the minimal qunit size is\n"
 516          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 517          "      The maximum quota grace time is 2^48 - 1 seconds.\n\n"
 518          "      Quota space rebalancing process will stop when this mininum\n"
 519          "      value is reached. As a result, quota exceeded can be returned\n"
 520          "      while many targets still have 1MB or 1K inodes of spare\n"
 521          "      quota space."},
 522         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 523          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 524                        "<ost_idx>]\n"
 525          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 526          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>\n"
 527         "        quota [-q] [-v] [h] <-U|-G|-P> <filesystem>"},
 528         {"project", lfs_project, 0,
 529          "Change or list project attribute for specified file or directory.\n"
 530          "usage: project [-d|-r] <file|directory...>\n"
 531          "         list project ID and flags on file(s) or directories\n"
 532          "       project [-p id] [-s] [-r] <file|directory...>\n"
 533          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 534          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 535          "         check project ID and flags on file(s) or directories, print outliers\n"
 536          "       project -C [-r] [-k] <file|directory...>\n"
 537          "         clear the project inherit flag and ID on the file or directory\n"
 538         },
 539 #endif
 540         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 541          "usage: flushctx [-k] [mountpoint...]"},
 542         {"changelog", lfs_changelog, 0,
 543          "Show the metadata changes on an MDT."
 544          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 545         {"changelog_clear", lfs_changelog_clear, 0,
 546          "Indicate that old changelog records up to <endrec> are no longer of "
 547          "interest to consumer <id>, allowing the system to free up space.\n"
 548          "An <endrec> of 0 means all records.\n"
 549          "usage: changelog_clear <mdtname> <id> <endrec>"},
 550         {"fid2path", lfs_fid2path, 0,
 551          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 552          "specify link number <linkno>.\n"
 553         /* "For a historical link name, specify changelog record <recno>.\n" */
 554          "usage: fid2path [--link <linkno>] <fsname|rootpath> <fid> ..."
 555                 /* [ --rec <recno> ] */ },
 556         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 557          "usage: path2fid [--parents] <path> ..."},
 558         {"data_version", lfs_data_version, 0, "Display file data version for "
 559          "a given path.\n" "usage: data_version -[n|r|w] <path>"},
 560         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 561          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 562         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 563          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 564          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 565         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 566          "files.\n"
 567          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 568          "[--archived] [--lost] <file> ..."},
 569         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 570          "given files.\n" "usage: hsm_action <file> ..."},
 571         {"hsm_archive", lfs_hsm_archive, 0,
 572          "Archive file to external storage.\n"
 573          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 574          "<file> ..."},
 575         {"hsm_restore", lfs_hsm_restore, 0,
 576          "Restore file from external storage.\n"
 577          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 578         {"hsm_release", lfs_hsm_release, 0,
 579          "Release files from Lustre.\n"
 580          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 581         {"hsm_remove", lfs_hsm_remove, 0,
 582          "Remove file copy from external storage.\n"
 583          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 584          "[--archive NUM]\n"
 585          "                  (FILE [FILE ...] | "
 586          "--mntpath MOUNTPATH FID [FID ...])\n"
 587          "\n"
 588          "Note: To remove an archived copy of a file already deleted from a "
 589          "Lustre FS, the\n"
 590          "--mntpath option and a list of FIDs must be specified"
 591         },
 592         {"hsm_cancel", lfs_hsm_cancel, 0,
 593          "Cancel requests related to specified files.\n"
 594          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 595         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 596          "usage: swap_layouts <path1> <path2>"},
 597         {"migrate", lfs_setstripe_migrate, 0,
 598          "migrate a directory between MDTs.\n"
 599          "usage: migrate [--mdt-count|-c] <stripe_count>\n"
 600          "               [--mdt-hash|-H] <hash_type>\n"
 601          "               [--mdt-index|-m] <start_mdt_index>\n"
 602          "               [--verbose|-v]\n"
 603          "               <directory>\n"
 604          "\tmdt:        MDTs to stripe over, if only one MDT is specified\n"
 605          "                      it's the MDT index of first stripe\n"
 606          "\tmdt_count:  number of MDTs to stripe a directory over\n"
 607          "\tmdt_hash:   hash type of the striped directory. mdt types:\n"
 608          "                      fnv_1a_64 FNV-1a hash algorithm (default)\n"
 609          "                      all_char  sum of characters % MDT_COUNT\n"
 610          "\n"
 611          "migrate file objects from one OST "
 612          "layout\nto another (may be not safe with concurent writes).\n"
 613          "usage: migrate  "
 614          "[--stripe-count|-c] <stripe_count>\n"
 615          "[--overstripe-count|-C] <stripe_count>\n"
 616          "              [--stripe-index|-i] <start_ost_index>\n"
 617          "              [--stripe-size|-S] <stripe_size>\n"
 618          "              [--pool|-p] <pool_name>\n"
 619          "              [--ost|-o] <ost_indices>\n"
 620          "              [--block|-b]\n"
 621          "              [--non-block|-n]\n"
 622          "              [--non-direct|-D]\n"
 623          "              <file|directory>\n"
 624          "\tstripe_count:     number of OSTs to stripe a file over\n"
 625          "\t              Using -C instead of -c allows overstriping, which\n"
 626          "\t              will place more than one stripe per OST if\n"
 627          "\t              stripe_count is greater than the number of OSTs\n"
 628          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 629          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 630          "\tpool_name:        name of the predefined pool of OSTs\n"
 631          "\tost_indices:      OSTs to stripe over, in order\n"
 632          "\tblock:        Block file access during data migration (default)\n"
 633          "\tnon-block:    Abort migrations if concurrent access is detected\n"
 634          "\tnon-direct:       do not use direct I/O to copy file contents.\n"},
 635         {"mv", lfs_mv, 0,
 636          "To move directories between MDTs. This command is deprecated, "
 637          "use \"migrate\" instead.\n"
 638          "usage: mv <directory|filename> [--mdt-index|-m] <mdt_index> "
 639          "[--verbose|-v]\n"},
 640         {"ladvise", lfs_ladvise, 0,
 641          "Provide servers with advice about access patterns for a file.\n"
 642          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 643          "               [--background|-b] [--unset|-u]\n\n"
 644          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 645          "               {[--mode|-m [READ,WRITE]}\n"
 646          "               <file> ...\n"},
 647         {"mirror", lfs_mirror, mirror_cmdlist,
 648          "lfs commands used to manage files with mirrored components:\n"
 649          "lfs mirror create - create a mirrored file or directory\n"
 650          "lfs mirror extend - add mirror(s) to an existing file\n"
 651          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 652          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 653          "lfs mirror read   - read a mirror content of a mirrored file\n"
 654          "lfs mirror write  - write to a mirror of a mirrored file\n"
 655          "lfs mirror copy   - copy a mirror to other mirror(s) of a file\n"
 656          "lfs mirror verify - verify mirrored file(s)\n"},
 657         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 658          "usage: getsom [-s] [-b] [-f] <path>\n"
 659          "\t-s: Only show the size value of the SOM data for a given file\n"
 660          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 661          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 662         {"heat_get", lfs_heat_get, 0,
 663          "To get heat of files.\n"
 664          "usage: heat_get <file> ...\n"},
 665         {"heat_set", lfs_heat_set, 0,
 666          "To set heat flags of files.\n"
 667          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 668          "\t--clear|-c: Clear file heat for given files\n"
 669          "\t--off|-o:   Turn off file heat for given files\n"
 670          "\t--on|-O:    Turn on file heat for given files\n"},
 671         {"pcc", lfs_pcc, pcc_cmdlist,
 672          "lfs commands used to interact with PCC features:\n"
 673          "lfs pcc attach - attach given files to Persistent Client Cache\n"
 674          "lfs pcc attach_fid - attach given files into PCC by FID(s)\n"
 675          "lfs pcc state  - display the PCC state for given files\n"
 676          "lfs pcc detach - detach given files from Persistent Client Cache\n"
 677          "lfs pcc detach_fid - detach given files from PCC by FID(s)\n"},
 678         {"help", Parser_help, 0, "help"},
 679         {"exit", Parser_quit, 0, "quit"},
 680         {"quit", Parser_quit, 0, "quit"},
 681         {"--version", Parser_version, 0,
 682          "output build version of the utility and exit"},
 683         {"--list-commands", lfs_list_commands, 0,
 684          "list commands supported by the utility and exit"},
 685         { 0, 0, 0, NULL }
 686 };
 687
 688
 689 static int check_hashtype(const char *hashtype)
 690 {
 691         int i;
 692
 693         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 694                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 695                         return i;
 696
 697         return 0;
 698 }
 699
 700 static uint32_t check_foreign_type_name(const char *foreign_type_name)
 701 {
 702         uint32_t i;
 703
 704         for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
 705                 if (lu_foreign_types[i].lft_name == NULL)
 706                         break;
 707                 if (strcmp(foreign_type_name,
 708                            lu_foreign_types[i].lft_name) == 0)
 709                         return lu_foreign_types[i].lft_type;
 710         }
 711
 712         return LU_FOREIGN_TYPE_UNKNOWN;
 713 }
 714
 715 static const char *error_loc = "syserror";
 716
 717 enum {
 718         MIGRATION_NONBLOCK      = 0x0001,
 719         MIGRATION_MIRROR        = 0x0002,
 720         MIGRATION_NONDIRECT     = 0x0004,
 721         MIGRATION_VERBOSE       = 0x0008,
 722 };
 723
 724 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 725                                 struct llapi_layout *layout);
 726
 727 static int
 728 migrate_open_files(const char *name, __u64 migration_flags,
 729                    const struct llapi_stripe_param *param,
 730                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 731 {
 732         int                      fd = -1;
 733         int                      fdv = -1;
 734         int                      rflags;
 735         int                      mdt_index;
 736         int                      random_value;
 737         char                     parent[PATH_MAX];
 738         char                     volatile_file[PATH_MAX];
 739         char                    *ptr;
 740         int                      rc;
 741         struct stat              st;
 742         struct stat              stv;
 743
 744         if (param == NULL && layout == NULL) {
 745                 error_loc = "layout information";
 746                 return -EINVAL;
 747         }
 748
 749         /* search for file directory pathname */
 750         if (strlen(name) > sizeof(parent) - 1) {
 751                 error_loc = "source file name";
 752                 return -ERANGE;
 753         }
 754
 755         strncpy(parent, name, sizeof(parent));
 756         ptr = strrchr(parent, '/');
 757         if (ptr == NULL) {
 758                 if (getcwd(parent, sizeof(parent)) == NULL) {
 759                         error_loc = "getcwd";
 760                         return -errno;
 761                 }
 762         } else {
 763                 if (ptr == parent) /* leading '/' */
 764                         ptr = parent + 1;
 765                 *ptr = '\0';
 766         }
 767
 768         /* open file, direct io */
 769         /* even if the file is only read, WR mode is nedeed to allow
 770          * layout swap on fd */
 771         rflags = O_RDWR;
 772         if (!(migration_flags & MIGRATION_NONDIRECT))
 773                 rflags |= O_DIRECT;
 774         fd = open(name, rflags);
 775         if (fd < 0) {
 776                 rc = -errno;
 777                 error_loc = "cannot open source file";
 778                 return rc;
 779         }
 780
 781         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 782         if (rc < 0) {
 783                 error_loc = "cannot get MDT index";
 784                 goto out;
 785         }
 786
 787         do {
 788                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 789                 mode_t open_mode = S_IRUSR | S_IWUSR;
 790
 791                 random_value = random();
 792                 rc = snprintf(volatile_file, sizeof(volatile_file),
 793                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 794                               mdt_index, random_value);
 795                 if (rc >= sizeof(volatile_file)) {
 796                         rc = -ENAMETOOLONG;
 797                         break;
 798                 }
 799
 800                 /* create, open a volatile file, use caching (ie no directio) */
 801                 if (param != NULL)
 802                         fdv = llapi_file_open_param(volatile_file, open_flags,
 803                                                     open_mode, param);
 804                 else
 805                         fdv = lfs_component_create(volatile_file, open_flags,
 806                                                    open_mode, layout);
 807         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 808
 809         if (rc < 0) {
 810                 error_loc = "cannot create volatile file";
 811                 goto out;
 812         }
 813
 814         /* In case the MDT does not support creation of volatile files
 815          * we should try to unlink it. */
 816         (void)unlink(volatile_file);
 817
 818         /* Not-owner (root?) special case.
 819          * Need to set owner/group of volatile file like original.
 820          * This will allow to pass related check during layout_swap.
 821          */
 822         rc = fstat(fd, &st);
 823         if (rc != 0) {
 824                 rc = -errno;
 825                 error_loc = "cannot stat source file";
 826                 goto out;
 827         }
 828
 829         rc = fstat(fdv, &stv);
 830         if (rc != 0) {
 831                 rc = -errno;
 832                 error_loc = "cannot stat volatile";
 833                 goto out;
 834         }
 835
 836         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 837                 rc = fchown(fdv, st.st_uid, st.st_gid);
 838                 if (rc != 0) {
 839                         rc = -errno;
 840                         error_loc = "cannot change ownwership of volatile";
 841                         goto out;
 842                 }
 843         }
 844
 845 out:
 846         if (rc < 0) {
 847                 if (fd > 0)
 848                         close(fd);
 849                 if (fdv > 0)
 850                         close(fdv);
 851         } else {
 852                 *fd_src = fd;
 853                 *fd_tgt = fdv;
 854                 error_loc = NULL;
 855         }
 856         return rc;
 857 }
 858
 859 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 860 {
 861         struct llapi_layout *layout;
 862         size_t   buf_size = 4 * 1024 * 1024;
 863         void    *buf = NULL;
 864         ssize_t  rsize = -1;
 865         ssize_t  wsize = 0;
 866         size_t   rpos = 0;
 867         size_t   wpos = 0;
 868         off_t    bufoff = 0;
 869         int      rc;
 870
 871         layout = llapi_layout_get_by_fd(fd_src, 0);
 872         if (layout != NULL) {
 873                 uint64_t stripe_size;
 874
 875                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 876                 if (rc == 0)
 877                         buf_size = stripe_size;
 878
 879                 llapi_layout_free(layout);
 880         }
 881
 882         /* Use a page-aligned buffer for direct I/O */
 883         rc = posix_memalign(&buf, getpagesize(), buf_size);
 884         if (rc != 0)
 885                 return -rc;
 886
 887         while (1) {
 888                 /* read new data only if we have written all
 889                  * previously read data */
 890                 if (wpos == rpos) {
 891                         if (check_file) {
 892                                 rc = check_file(fd_src);
 893                                 if (rc < 0)
 894                                         break;
 895                         }
 896
 897                         rsize = read(fd_src, buf, buf_size);
 898                         if (rsize < 0) {
 899                                 rc = -errno;
 900                                 break;
 901                         }
 902                         rpos += rsize;
 903                         bufoff = 0;
 904                 }
 905                 /* eof ? */
 906                 if (rsize == 0)
 907                         break;
 908
 909                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 910                 if (wsize < 0) {
 911                         rc = -errno;
 912                         break;
 913                 }
 914                 wpos += wsize;
 915                 bufoff += wsize;
 916         }
 917
 918         if (rc == 0) {
 919                 rc = fsync(fd_dst);
 920                 if (rc < 0)
 921                         rc = -errno;
 922         }
 923
 924         free(buf);
 925         return rc;
 926 }
 927
 928 static int migrate_copy_timestamps(int fd, int fdv)
 929 {
 930         struct stat st;
 931
 932         if (fstat(fd, &st) == 0) {
 933                 struct timeval tv[2] = {
 934                         {.tv_sec = st.st_atime},
 935                         {.tv_sec = st.st_mtime}
 936                 };
 937
 938                 return futimes(fdv, tv);
 939         }
 940
 941         return -errno;
 942 }
 943
 944 static int migrate_block(int fd, int fdv)
 945 {
 946         __u64   dv1;
 947         int     gid;
 948         int     rc;
 949         int     rc2;
 950
 951         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 952         if (rc < 0) {
 953                 error_loc = "cannot get dataversion";
 954                 return rc;
 955         }
 956
 957         do
 958                 gid = random();
 959         while (gid == 0);
 960
 961         /* The grouplock blocks all concurrent accesses to the file.
 962          * It has to be taken after llapi_get_data_version as it would
 963          * block it too. */
 964         rc = llapi_group_lock(fd, gid);
 965         if (rc < 0) {
 966                 error_loc = "cannot get group lock";
 967                 return rc;
 968         }
 969
 970         rc = migrate_copy_data(fd, fdv, NULL);
 971         if (rc < 0) {
 972                 error_loc = "data copy failed";
 973                 goto out_unlock;
 974         }
 975
 976         /* Make sure we keep original atime/mtime values */
 977         rc = migrate_copy_timestamps(fd, fdv);
 978         if (rc < 0) {
 979                 error_loc = "timestamp copy failed";
 980                 goto out_unlock;
 981         }
 982
 983         /* swap layouts
 984          * for a migration we need to check data version on file did
 985          * not change.
 986          *
 987          * Pass in gid=0 since we already own grouplock. */
 988         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
 989                                            SWAP_LAYOUTS_CHECK_DV1);
 990         if (rc == -EAGAIN) {
 991                 error_loc = "file changed";
 992                 goto out_unlock;
 993         } else if (rc < 0) {
 994                 error_loc = "cannot swap layout";
 995                 goto out_unlock;
 996         }
 997
 998 out_unlock:
 999         rc2 = llapi_group_unlock(fd, gid);
1000         if (rc2 < 0 && rc == 0) {
1001                 error_loc = "unlock group lock";
1002                 rc = rc2;
1003         }
1004
1005         return rc;
1006 }
1007
1008 /**
1009  * Internal helper for migrate_copy_data(). Check lease and report error if
1010  * need be.
1011  *
1012  * \param[in]  fd           File descriptor on which to check the lease.
1013  *
1014  * \retval 0       Migration can keep on going.
1015  * \retval -errno  Error occurred, abort migration.
1016  */
1017 static int check_lease(int fd)
1018 {
1019         int rc;
1020
1021         rc = llapi_lease_check(fd);
1022         if (rc > 0)
1023                 return 0; /* llapi_check_lease returns > 0 on success. */
1024
1025         return -EBUSY;
1026 }
1027
1028 static int migrate_nonblock(int fd, int fdv)
1029 {
1030         __u64   dv1;
1031         __u64   dv2;
1032         int     rc;
1033
1034         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1035         if (rc < 0) {
1036                 error_loc = "cannot get data version";
1037                 return rc;
1038         }
1039
1040         rc = migrate_copy_data(fd, fdv, check_lease);
1041         if (rc < 0) {
1042                 error_loc = "data copy failed";
1043                 return rc;
1044         }
1045
1046         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
1047         if (rc != 0) {
1048                 error_loc = "cannot get data version";
1049                 return rc;
1050         }
1051
1052         if (dv1 != dv2) {
1053                 rc = -EAGAIN;
1054                 error_loc = "source file changed";
1055                 return rc;
1056         }
1057
1058         /* Make sure we keep original atime/mtime values */
1059         rc = migrate_copy_timestamps(fd, fdv);
1060         if (rc < 0) {
1061                 error_loc = "timestamp copy failed";
1062                 return rc;
1063         }
1064
1065         return 0;
1066 }
1067
1068 static int lfs_component_set(char *fname, int comp_id,
1069                              __u32 flags, __u32 neg_flags)
1070 {
1071         __u32 ids[2];
1072         __u32 flags_array[2];
1073         size_t count = 0;
1074         int rc;
1075
1076         if (flags) {
1077                 ids[count] = comp_id;
1078                 flags_array[count] = flags;
1079                 ++count;
1080         }
1081
1082         if (neg_flags) {
1083                 ids[count] = comp_id;
1084                 flags_array[count] = neg_flags | LCME_FL_NEG;
1085                 ++count;
1086         }
1087
1088         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1089         if (rc)
1090                 fprintf(stderr,
1091                         "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1092                         progname, comp_id, fname, flags, neg_flags);
1093
1094         return rc;
1095 }
1096
1097 static int lfs_component_del(char *fname, __u32 comp_id,
1098                              __u32 flags, __u32 neg_flags)
1099 {
1100         int     rc = 0;
1101
1102         if (flags && neg_flags)
1103                 return -EINVAL;
1104
1105         if (!flags && neg_flags)
1106                 flags = neg_flags | LCME_FL_NEG;
1107
1108         if ((flags && comp_id) || (!flags && !comp_id))
1109                 return -EINVAL;
1110
1111         /* LCME_FL_INIT is the only supported flag in PFL */
1112         if (flags) {
1113                 if (flags & ~LCME_KNOWN_FLAGS) {
1114                         fprintf(stderr,
1115                                 "%s setstripe: unknown flags %#x\n",
1116                                 progname, flags);
1117                         return -EINVAL;
1118                 }
1119         } else if (comp_id > LCME_ID_MAX) {
1120                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1121                         progname, comp_id);
1122                 return -EINVAL;
1123         }
1124
1125         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1126         if (rc)
1127                 fprintf(stderr,
1128                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1129                         progname, comp_id, fname, strerror(errno));
1130         return rc;
1131 }
1132
1133 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1134 {
1135         int     rc;
1136
1137         if (layout == NULL)
1138                 return -EINVAL;
1139
1140         rc = llapi_layout_file_comp_add(fname, layout);
1141         if (rc)
1142                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1143                         fname, strerror(errno));
1144         return rc;
1145 }
1146
1147 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1148                                 struct llapi_layout *layout)
1149 {
1150         struct stat     st;
1151         int     fd;
1152
1153         if (layout == NULL)
1154                 return -EINVAL;
1155
1156         fd = lstat(fname, &st);
1157         if (fd == 0 && S_ISDIR(st.st_mode))
1158                 open_flags = O_DIRECTORY | O_RDONLY;
1159
1160         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1161         if (fd < 0)
1162                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1163                         S_ISDIR(st.st_mode) ?
1164                                 "set default composite layout for" :
1165                                 "create composite file",
1166                         fname, strerror(errno));
1167         return fd;
1168 }
1169
1170 static int lfs_migrate(char *name, __u64 migration_flags,
1171                        struct llapi_stripe_param *param,
1172                        struct llapi_layout *layout)
1173 {
1174         int fd = -1;
1175         int fdv = -1;
1176         int rc;
1177
1178         rc = migrate_open_files(name, migration_flags, param, layout,
1179                                 &fd, &fdv);
1180         if (rc < 0)
1181                 goto out;
1182
1183         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1184                 /* Blocking mode (forced if servers do not support file lease).
1185                  * It is also the default mode, since we cannot distinguish
1186                  * between a broken lease and a server that does not support
1187                  * atomic swap/close (LU-6785) */
1188                 rc = migrate_block(fd, fdv);
1189                 goto out;
1190         }
1191
1192         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1193         if (rc < 0) {
1194                 error_loc = "cannot get lease";
1195                 goto out;
1196         }
1197
1198         rc = migrate_nonblock(fd, fdv);
1199         if (rc < 0) {
1200                 llapi_lease_release(fd);
1201                 goto out;
1202         }
1203
1204         /* Atomically put lease, swap layouts and close.
1205          * for a migration we need to check data version on file did
1206          * not change. */
1207         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1208         if (rc < 0) {
1209                 error_loc = "cannot swap layout";
1210                 goto out;
1211         }
1212
1213 out:
1214         if (fd >= 0)
1215                 close(fd);
1216
1217         if (fdv >= 0)
1218                 close(fdv);
1219
1220         if (rc < 0)
1221                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1222                         progname, name, error_loc, strerror(-rc));
1223         else if (migration_flags & MIGRATION_VERBOSE)
1224                 printf("%s\n", name);
1225
1226         return rc;
1227 }
1228
1229 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1230 {
1231         char *name;
1232
1233         if (string == NULL)
1234                 return -EINVAL;
1235
1236         *flags = 0;
1237         *neg_flags = 0;
1238         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1239                 bool found = false;
1240                 int i;
1241
1242                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1243                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1244                         const char *comp_name = comp_flags_table[i].cfn_name;
1245
1246                         if (strcmp(name, comp_name) == 0) {
1247                                 *flags |= comp_flag;
1248                                 found = true;
1249                         } else if (strncmp(name, "^", 1) == 0 &&
1250                                    strcmp(name + 1, comp_name) == 0) {
1251                                 *neg_flags |= comp_flag;
1252                                 found = true;
1253                         }
1254                 }
1255                 if (!found) {
1256                         llapi_printf(LLAPI_MSG_ERROR,
1257                                      "%s: component flag '%s' not supported\n",
1258                                      progname, name);
1259                         return -EINVAL;
1260                 }
1261         }
1262
1263         if (!*flags && !*neg_flags)
1264                 return -EINVAL;
1265
1266         /* don't allow to set and exclude the same flag */
1267         if (*flags & *neg_flags)
1268                 return -EINVAL;
1269
1270         return 0;
1271 }
1272
1273 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1274 {
1275         if (string == NULL)
1276                 return -EINVAL;
1277
1278         *state = 0;
1279         *neg_state = 0;
1280
1281         if (strncmp(string, "^", 1) == 0) {
1282                 *neg_state = llapi_layout_string_flags(string + 1);
1283                 if (*neg_state != 0)
1284                         return 0;
1285         } else {
1286                 *state = llapi_layout_string_flags(string);
1287                 if (*state != 0)
1288                         return 0;
1289         }
1290
1291         llapi_printf(LLAPI_MSG_ERROR,
1292                      "%s: mirrored file state '%s' not supported\n",
1293                      progname, string);
1294         return -EINVAL;
1295 }
1296
1297 /**
1298  * struct mirror_args - Command-line arguments for mirror(s).
1299  * @m_count:  Number of mirrors to be created with this layout.
1300  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1301  * @m_layout: Mirror layout.
1302  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1303  * @m_next:   Point to the next node of the list.
1304  *
1305  * Command-line arguments for mirror(s) will be parsed and stored in
1306  * a linked list that consists of this structure.
1307  */
1308 struct mirror_args {
1309         __u32                   m_count;
1310         __u32                   m_flags;
1311         struct llapi_layout     *m_layout;
1312         const char              *m_file;
1313         struct mirror_args      *m_next;
1314 };
1315
1316 static int mirror_sanity_check_flags(struct llapi_layout *layout, void *unused)
1317 {
1318         uint32_t flags;
1319         int rc;
1320
1321         rc = llapi_layout_comp_flags_get(layout, &flags);
1322         if (rc)
1323                 return -errno;
1324
1325         if (flags & LCME_FL_NEG) {
1326                 fprintf(stderr, "error: %s: negative flags are not supported\n",
1327                         progname);
1328                 return -EINVAL;
1329         }
1330
1331         if (flags & LCME_FL_STALE) {
1332                 fprintf(stderr, "error: %s: setting '%s' is not supported\n",
1333                         progname, comp_flags_table[LCME_FL_STALE].cfn_name);
1334                 return -EINVAL;
1335         }
1336
1337         return LLAPI_LAYOUT_ITER_CONT;
1338 }
1339
1340 static inline int mirror_sanity_check_one(struct llapi_layout *layout)
1341 {
1342         uint64_t start, end;
1343         uint64_t pattern;
1344         int rc;
1345
1346         /* LU-10112: do not support dom+flr in phase 1 */
1347         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
1348         if (rc)
1349                 return -errno;
1350
1351         rc = llapi_layout_pattern_get(layout, &pattern);
1352         if (rc)
1353                 return -errno;
1354
1355         if (pattern == LOV_PATTERN_MDT || pattern == LLAPI_LAYOUT_MDT) {
1356                 fprintf(stderr, "error: %s: doesn't support dom+flr for now\n",
1357                         progname);
1358                 return -ENOTSUP;
1359         }
1360
1361         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_LAST);
1362         if (rc)
1363                 return -errno;
1364
1365         rc = llapi_layout_comp_extent_get(layout, &start, &end);
1366         if (rc)
1367                 return -errno;
1368
1369         if (end != LUSTRE_EOF) {
1370                 fprintf(stderr, "error: %s: mirror layout doesn't reach eof\n",
1371                         progname);
1372                 return -EINVAL;
1373         }
1374
1375         rc = llapi_layout_comp_iterate(layout, mirror_sanity_check_flags, NULL);
1376         return rc;
1377 }
1378
1379 /**
1380  * enum mirror_flags - Flags for extending a mirrored file.
1381  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1382  *             in case the victim file(s) contains the same data as the
1383  *             original mirrored file.
1384  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1385  * @MF_COMP_ID: specified component id instead of mirror id
1386  *
1387  * Flags for extending a mirrored file.
1388  */
1389 enum mirror_flags {
1390         MF_NO_VERIFY    = 0x1,
1391         MF_DESTROY      = 0x2,
1392         MF_COMP_ID      = 0x4,
1393 };
1394
1395 /**
1396  * mirror_create_sanity_check() - Check mirror list.
1397  * @list:  A linked list that stores the mirror arguments.
1398  *
1399  * This function does a sanity check on @list for creating
1400  * a mirrored file.
1401  *
1402  * Return: 0 on success or a negative error code on failure.
1403  */
1404 static int mirror_create_sanity_check(const char *fname,
1405                                       struct mirror_args *list)
1406 {
1407         int rc = 0;
1408         bool has_m_file = false;
1409         bool has_m_layout = false;
1410
1411         if (list == NULL)
1412                 return -EINVAL;
1413
1414         if (fname) {
1415                 struct llapi_layout *layout;
1416
1417                 layout = llapi_layout_get_by_path(fname, 0);
1418                 if (!layout) {
1419                         fprintf(stderr,
1420                                 "error: %s: file '%s' couldn't get layout\n",
1421                                 progname, fname);
1422                         return -ENODATA;
1423                 }
1424
1425                 rc = mirror_sanity_check_one(layout);
1426                 llapi_layout_free(layout);
1427
1428                 if (rc)
1429                         return rc;
1430         }
1431
1432         while (list != NULL) {
1433                 if (list->m_file != NULL) {
1434                         has_m_file = true;
1435                         llapi_layout_free(list->m_layout);
1436
1437                         list->m_layout =
1438                                 llapi_layout_get_by_path(list->m_file, 0);
1439                         if (list->m_layout == NULL) {
1440                                 fprintf(stderr,
1441                                         "error: %s: file '%s' has no layout\n",
1442                                         progname, list->m_file);
1443                                 return -ENODATA;
1444                         }
1445                 } else {
1446                         has_m_layout = true;
1447                         if (list->m_layout == NULL) {
1448                                 fprintf(stderr, "error: %s: no mirror layout\n",
1449                                         progname);
1450                                 return -EINVAL;
1451                         }
1452                 }
1453
1454                 rc = mirror_sanity_check_one(list->m_layout);
1455                 if (rc)
1456                         return rc;
1457
1458                 list = list->m_next;
1459         }
1460
1461         if (has_m_file && has_m_layout) {
1462                 fprintf(stderr,
1463                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1464                         progname);
1465                 return -EINVAL;
1466         }
1467
1468         return 0;
1469 }
1470
1471 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1472 {
1473         __u32 mirror_flags = *(__u32 *)cbdata;
1474         uint32_t flags;
1475         int rc;
1476
1477         rc = llapi_layout_comp_flags_get(layout, &flags);
1478         if (rc < 0)
1479                 return rc;
1480
1481         if (!flags) {
1482                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1483                 if (rc)
1484                         return rc;
1485         }
1486
1487         return LLAPI_LAYOUT_ITER_CONT;
1488 }
1489
1490 /**
1491  * mirror_create() - Create a mirrored file.
1492  * @fname:        The file to be created.
1493  * @mirror_list:  A linked list that stores the mirror arguments.
1494  *
1495  * This function creates a mirrored file @fname with the mirror(s)
1496  * from @mirror_list.
1497  *
1498  * Return: 0 on success or a negative error code on failure.
1499  */
1500 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1501 {
1502         struct llapi_layout *layout = NULL;
1503         struct mirror_args *cur_mirror = NULL;
1504         uint16_t mirror_count = 0;
1505         int i = 0;
1506         int rc = 0;
1507
1508         rc = mirror_create_sanity_check(NULL, mirror_list);
1509         if (rc)
1510                 return rc;
1511
1512         cur_mirror = mirror_list;
1513         while (cur_mirror != NULL) {
1514                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1515                                                mirror_set_flags,
1516                                                &cur_mirror->m_flags);
1517                 if (rc) {
1518                         rc = -errno;
1519                         fprintf(stderr, "%s: failed to set mirror flags\n",
1520                                 progname);
1521                         goto error;
1522                 }
1523
1524                 for (i = 0; i < cur_mirror->m_count; i++) {
1525                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1526                         if (rc) {
1527                                 rc = -errno;
1528                                 fprintf(stderr, "error: %s: "
1529                                         "merge layout failed: %s\n",
1530                                         progname, strerror(errno));
1531                                 goto error;
1532                         }
1533                 }
1534                 mirror_count += cur_mirror->m_count;
1535                 cur_mirror = cur_mirror->m_next;
1536         }
1537
1538         if (layout == NULL) {
1539                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1540                 return -EINVAL;
1541         }
1542
1543         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1544         if (rc) {
1545                 rc = -errno;
1546                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1547                         progname, strerror(errno));
1548                 goto error;
1549         }
1550
1551         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1552                                   layout);
1553         if (rc >= 0) {
1554                 close(rc);
1555                 rc = 0;
1556         }
1557
1558 error:
1559         llapi_layout_free(layout);
1560         return rc;
1561 }
1562
1563 /**
1564  * Compare files and check lease on @fd.
1565  *
1566  * \retval bytes number of bytes are the same
1567  */
1568 static ssize_t mirror_file_compare(int fd, int fdv)
1569 {
1570         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1571         void *buf;
1572         ssize_t bytes_done = 0;
1573         ssize_t bytes_read = 0;
1574
1575         buf = malloc(buflen * 2);
1576         if (!buf)
1577                 return -ENOMEM;
1578
1579         while (1) {
1580                 if (!llapi_lease_check(fd)) {
1581                         bytes_done = -EBUSY;
1582                         break;
1583                 }
1584
1585                 bytes_read = read(fd, buf, buflen);
1586                 if (bytes_read <= 0)
1587                         break;
1588
1589                 if (bytes_read != read(fdv, buf + buflen, buflen))
1590                         break;
1591
1592                 /* XXX: should compute the checksum on each buffer and then
1593                  * compare checksum to avoid cache collision */
1594                 if (memcmp(buf, buf + buflen, bytes_read))
1595                         break;
1596
1597                 bytes_done += bytes_read;
1598         }
1599
1600         free(buf);
1601
1602         return bytes_done;
1603 }
1604
1605 static int mirror_extend_file(const char *fname, const char *victim_file,
1606                               enum mirror_flags mirror_flags)
1607 {
1608         int fd = -1;
1609         int fdv = -1;
1610         struct stat stbuf;
1611         struct stat stbuf_v;
1612         struct ll_ioc_lease *data = NULL;
1613         int rc;
1614
1615         fd = open(fname, O_RDWR);
1616         if (fd < 0) {
1617                 error_loc = "open source file";
1618                 rc = -errno;
1619                 goto out;
1620         }
1621
1622         fdv = open(victim_file, O_RDWR);
1623         if (fdv < 0) {
1624                 error_loc = "open target file";
1625                 rc = -errno;
1626                 goto out;
1627         }
1628
1629         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1630                 error_loc = "stat source or target file";
1631                 rc = -errno;
1632                 goto out;
1633         }
1634
1635         if (stbuf.st_dev != stbuf_v.st_dev) {
1636                 error_loc = "stat source and target file";
1637                 rc = -EXDEV;
1638                 goto out;
1639         }
1640
1641         /* mirrors should be of the same size */
1642         if (stbuf.st_size != stbuf_v.st_size) {
1643                 error_loc = "file sizes don't match";
1644                 rc = -EINVAL;
1645                 goto out;
1646         }
1647
1648         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1649         if (rc < 0) {
1650                 error_loc = "cannot get lease";
1651                 goto out;
1652         }
1653
1654         if (!(mirror_flags & MF_NO_VERIFY)) {
1655                 ssize_t ret;
1656                 /* mirrors should have the same contents */
1657                 ret = mirror_file_compare(fd, fdv);
1658                 if (ret != stbuf.st_size) {
1659                         error_loc = "file busy or contents don't match";
1660                         rc = ret < 0 ? ret : -EINVAL;
1661                         goto out;
1662                 }
1663         }
1664
1665         /* Get rid of caching pages from clients */
1666         rc = llapi_file_flush(fd);
1667         if (rc < 0) {
1668                 error_loc = "cannot get data version";
1669                 goto out;
1670         }
1671
1672         rc = llapi_file_flush(fdv);
1673         if (rc < 0) {
1674                 error_loc = "cannot get data version";
1675                 goto out;
1676
1677         }
1678
1679         /* Make sure we keep original atime/mtime values */
1680         rc = migrate_copy_timestamps(fd, fdv);
1681         if (rc < 0) {
1682                 error_loc = "cannot copy timestamp";
1683                 goto out;
1684         }
1685
1686         /* Atomically put lease, merge layouts and close. */
1687         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1688         if (!data) {
1689                 error_loc = "memory allocation";
1690                 goto out;
1691         }
1692         data->lil_mode = LL_LEASE_UNLCK;
1693         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1694         data->lil_count = 1;
1695         data->lil_ids[0] = fdv;
1696         rc = llapi_lease_set(fd, data);
1697         if (rc < 0) {
1698                 error_loc = "cannot merge layout";
1699                 goto out;
1700         } else if (rc == 0) {
1701                 rc = -EBUSY;
1702                 error_loc = "lost lease lock";
1703                 goto out;
1704         }
1705         rc = 0;
1706
1707 out:
1708         if (data)
1709                 free(data);
1710         if (fd >= 0)
1711                 close(fd);
1712         if (fdv >= 0)
1713                 close(fdv);
1714         if (!rc)
1715                 (void) unlink(victim_file);
1716         if (rc < 0)
1717                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1718                         progname, fname, error_loc, strerror(-rc));
1719         return rc;
1720 }
1721
1722 static int mirror_extend_layout(char *name, struct llapi_layout *layout)
1723 {
1724         struct ll_ioc_lease *data = NULL;
1725         int fd = -1;
1726         int fdv = -1;
1727         int rc;
1728
1729         rc = migrate_open_files(name, 0, NULL, layout, &fd, &fdv);
1730         if (rc < 0)
1731                 goto out;
1732
1733         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1734         if (rc < 0) {
1735                 error_loc = "cannot get lease";
1736                 goto out;
1737         }
1738
1739         rc = migrate_nonblock(fd, fdv);
1740         if (rc < 0) {
1741                 llapi_lease_release(fd);
1742                 goto out;
1743         }
1744
1745         /* Atomically put lease, merge layouts and close. */
1746         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1747         if (!data) {
1748                 error_loc = "memory allocation";
1749                 goto out;
1750         }
1751         data->lil_mode = LL_LEASE_UNLCK;
1752         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1753         data->lil_count = 1;
1754         data->lil_ids[0] = fdv;
1755         rc = llapi_lease_set(fd, data);
1756         if (rc < 0) {
1757                 error_loc = "cannot merge layout";
1758                 goto out;
1759         } else if (rc == 0) {
1760                 rc = -EBUSY;
1761                 error_loc = "lost lease lock";
1762                 goto out;
1763         }
1764         rc = 0;
1765
1766 out:
1767         if (data)
1768                 free(data);
1769         if (fd >= 0)
1770                 close(fd);
1771         if (fdv >= 0)
1772                 close(fdv);
1773         if (rc < 0)
1774                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1775                         progname, name, error_loc, strerror(-rc));
1776         return rc;
1777 }
1778
1779 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1780                          enum mirror_flags mirror_flags)
1781 {
1782         int rc;
1783
1784         rc = mirror_create_sanity_check(fname, mirror_list);
1785         if (rc)
1786                 return rc;
1787
1788         while (mirror_list) {
1789                 if (mirror_list->m_file != NULL) {
1790                         rc = mirror_extend_file(fname, mirror_list->m_file,
1791                                                 mirror_flags);
1792                 } else {
1793                         __u32 mirror_count = mirror_list->m_count;
1794
1795                         while (mirror_count > 0) {
1796                                 rc = mirror_extend_layout(fname,
1797                                                         mirror_list->m_layout);
1798                                 if (rc)
1799                                         break;
1800
1801                                 --mirror_count;
1802                         }
1803                 }
1804                 if (rc)
1805                         break;
1806
1807                 mirror_list = mirror_list->m_next;
1808         }
1809
1810         return rc;
1811 }
1812
1813 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1814 {
1815         uint32_t id;
1816         int rc;
1817
1818         rc = llapi_layout_mirror_id_get(layout, &id);
1819         if (rc < 0)
1820                 return rc;
1821
1822         if ((__u16)id == *(__u16 *)cbdata)
1823                 return LLAPI_LAYOUT_ITER_STOP;
1824
1825         return LLAPI_LAYOUT_ITER_CONT;
1826 }
1827
1828 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1829 {
1830         uint32_t id;
1831         int rc;
1832
1833         rc = llapi_layout_comp_id_get(layout, &id);
1834         if (rc < 0)
1835                 return rc;
1836
1837         if (id == *(__u32 *)cbdata)
1838                 return LLAPI_LAYOUT_ITER_STOP;
1839
1840         return LLAPI_LAYOUT_ITER_CONT;
1841 }
1842 static int mirror_split(const char *fname, __u32 id,
1843                         enum mirror_flags mflags, const char *victim_file)
1844 {
1845         struct llapi_layout *layout;
1846         char parent[PATH_MAX];
1847         char victim[PATH_MAX];
1848         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
1849         char *ptr;
1850         struct ll_ioc_lease *data;
1851         uint16_t mirror_count;
1852         int mdt_index;
1853         int fd, fdv;
1854         int rc;
1855
1856         /* check fname contains mirror with mirror_id/comp_id */
1857         layout = llapi_layout_get_by_path(fname, 0);
1858         if (!layout) {
1859                 fprintf(stderr,
1860                         "error %s: file '%s' couldn't get layout\n",
1861                         progname, fname);
1862                 return -EINVAL;
1863         }
1864
1865         rc = mirror_sanity_check_one(layout);
1866         if (rc)
1867                 goto free_layout;
1868
1869         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
1870         if (rc) {
1871                 fprintf(stderr,
1872                         "error %s: file '%s' couldn't get mirror count\n",
1873                         progname, fname);
1874                 goto free_layout;
1875         }
1876         if (mirror_count < 2) {
1877                 fprintf(stderr,
1878                         "error %s: file '%s' has %d component, cannot split\n",
1879                         progname, fname, mirror_count);
1880                 goto free_layout;
1881         }
1882
1883         if (mflags & MF_COMP_ID) {
1884                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
1885                 id = mirror_id_of(id);
1886         } else {
1887                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
1888         }
1889         if (rc < 0) {
1890                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
1891                         progname, fname);
1892                 goto free_layout;
1893         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
1894                 fprintf(stderr,
1895                      "error %s: file '%s' does not contain mirror with id %u\n",
1896                         progname, fname, id);
1897                 goto free_layout;
1898         }
1899
1900         fd = open(fname, O_RDWR);
1901         if (fd < 0) {
1902                 fprintf(stderr,
1903                         "error %s: open file '%s' failed: %s\n",
1904                         progname, fname, strerror(errno));
1905                 goto free_layout;
1906         }
1907
1908         /* get victim file directory pathname */
1909         if (strlen(fname) > sizeof(parent) - 1) {
1910                 fprintf(stderr, "error %s: file name of '%s' too long\n",
1911                         progname, fname);
1912                 rc = -ERANGE;
1913                 goto close_fd;
1914         }
1915         strncpy(parent, fname, sizeof(parent));
1916         ptr = strrchr(parent, '/');
1917         if (ptr == NULL) {
1918                 if (getcwd(parent, sizeof(parent)) == NULL) {
1919                         fprintf(stderr, "error %s: getcwd failed: %s\n",
1920                                 progname, strerror(errno));
1921                         rc = -errno;
1922                         goto close_fd;
1923                 }
1924         } else {
1925                 if (ptr == parent)
1926                         ptr = parent + 1;
1927                 *ptr = '\0';
1928         }
1929
1930         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
1931         if (rc < 0) {
1932                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
1933                         progname, fname);
1934                 goto close_fd;
1935         }
1936
1937         if (victim_file == NULL) {
1938                 /* use a temp file to store the splitted layout */
1939                 if (mflags & MF_DESTROY) {
1940                         fdv = llapi_create_volatile_idx(parent, mdt_index,
1941                                                         O_LOV_DELAY_CREATE);
1942                 } else {
1943                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
1944                                  fname, id);
1945                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
1946                 }
1947         } else {
1948                 /* user specified victim file */
1949                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
1950         }
1951
1952         if (fdv < 0) {
1953                 fprintf(stderr,
1954                         "error %s: create victim file failed: %s\n",
1955                         progname, strerror(errno));
1956                 goto close_fd;
1957         }
1958
1959         /* get lease lock of fname */
1960         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
1961         if (rc < 0) {
1962                 fprintf(stderr,
1963                         "error %s: cannot get lease of file '%s': %d\n",
1964                         progname, fname, rc);
1965                 goto close_victim;
1966         }
1967
1968         /* Atomatically put lease, split layouts and close. */
1969         data = malloc(offsetof(typeof(*data), lil_ids[2]));
1970         if (!data) {
1971                 rc = -ENOMEM;
1972                 goto close_victim;
1973         }
1974
1975         data->lil_mode = LL_LEASE_UNLCK;
1976         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
1977         data->lil_count = 2;
1978         data->lil_ids[0] = fdv;
1979         data->lil_ids[1] = id;
1980         rc = llapi_lease_set(fd, data);
1981         if (rc <= 0) {
1982                 if (rc == 0) /* lost lease lock */
1983                         rc = -EBUSY;
1984                 fprintf(stderr,
1985                         "error %s: cannot split '%s': %s\n",
1986                         progname, fname, strerror(-rc));
1987         } else {
1988                 rc = 0;
1989         }
1990         free(data);
1991
1992 close_victim:
1993         close(fdv);
1994 close_fd:
1995         close(fd);
1996 free_layout:
1997         llapi_layout_free(layout);
1998         return rc;
1999 }
2000
2001 /**
2002  * Parse a string containing an target index list into an array of integers.
2003  *
2004  * The input string contains a comma delimited list of individual
2005  * indices and ranges, for example "1,2-4,7". Add the indices into the
2006  * \a tgts array and remove duplicates.
2007  *
2008  * \param[out] tgts             array to store indices in
2009  * \param[in] size              size of \a tgts array
2010  * \param[in] offset            starting index in \a tgts
2011  * \param[in] arg               string containing OST index list
2012  * \param[in/out] overstriping  index list may contain duplicates
2013  *
2014  * \retval positive    number of indices in \a tgts
2015  * \retval -EINVAL     unable to parse \a arg
2016  */
2017 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2018                          unsigned long long *pattern)
2019 {
2020         int rc;
2021         int nr = offset;
2022         int slots = size - offset;
2023         char *ptr = NULL;
2024         bool overstriped = false;
2025         bool end_of_loop;
2026
2027         if (arg == NULL)
2028                 return -EINVAL;
2029
2030         end_of_loop = false;
2031         while (!end_of_loop) {
2032                 int start_index = 0;
2033                 int end_index = 0;
2034                 int i;
2035                 char *endptr = NULL;
2036
2037                 rc = -EINVAL;
2038
2039                 ptr = strchrnul(arg, ',');
2040
2041                 end_of_loop = *ptr == '\0';
2042                 *ptr = '\0';
2043
2044                 start_index = strtol(arg, &endptr, 0);
2045                 if (endptr == arg) /* no data at all */
2046                         break;
2047                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
2048                         break;
2049
2050                 end_index = start_index;
2051                 if (*endptr == '-') {
2052                         end_index = strtol(endptr + 1, &endptr, 0);
2053                         if (*endptr != '\0')
2054                                 break;
2055                         if (end_index < start_index)
2056                                 break;
2057                 }
2058
2059                 for (i = start_index; i <= end_index && slots > 0; i++) {
2060                         int j;
2061
2062                         /* remove duplicate */
2063                         for (j = 0; j < offset; j++) {
2064                                 if (tgts[j] == i && pattern &&
2065                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2066                                         overstriped = true;
2067                                 else if (tgts[j] == i)
2068                                         return -EINVAL;
2069                         }
2070
2071                         j = offset;
2072
2073                         if (j == offset) { /* check complete */
2074                                 tgts[nr++] = i;
2075                                 --slots;
2076                         }
2077                 }
2078
2079                 if (slots == 0 && i < end_index)
2080                         break;
2081
2082                 *ptr = ',';
2083                 arg = ++ptr;
2084                 offset = nr;
2085                 rc = 0;
2086         }
2087         if (!end_of_loop && ptr != NULL)
2088                 *ptr = ',';
2089
2090         if (!overstriped && pattern)
2091                 *pattern = LLAPI_LAYOUT_DEFAULT;
2092
2093         return rc < 0 ? rc : nr;
2094 }
2095
2096 struct lfs_setstripe_args {
2097         unsigned long long       lsa_comp_end;
2098         unsigned long long       lsa_stripe_size;
2099         long long                lsa_stripe_count;
2100         long long                lsa_stripe_off;
2101         __u32                    lsa_comp_flags;
2102         __u32                    lsa_comp_neg_flags;
2103         unsigned long long       lsa_pattern;
2104         unsigned int             lsa_mirror_count;
2105         int                      lsa_nr_tgts;
2106         bool                     lsa_first_comp;
2107         __u32                   *lsa_tgts;
2108         char                    *lsa_pool_name;
2109 };
2110
2111 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2112 {
2113         unsigned int mirror_count = lsa->lsa_mirror_count;
2114         bool first_comp = lsa->lsa_first_comp;
2115
2116         memset(lsa, 0, sizeof(*lsa));
2117
2118         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2119         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2120         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2121         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2122         lsa->lsa_pool_name = NULL;
2123
2124         lsa->lsa_mirror_count = mirror_count;
2125         lsa->lsa_first_comp = first_comp;
2126 }
2127
2128 /**
2129  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2130  * @lsa: Stripe options to be initialized and inherited.
2131  *
2132  * This function initializes stripe options in @lsa and inherit
2133  * stripe_size, stripe_count and OST pool_name options.
2134  *
2135  * Return: void.
2136  */
2137 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2138 {
2139         unsigned long long stripe_size;
2140         long long stripe_count;
2141         char *pool_name = NULL;
2142
2143         stripe_size = lsa->lsa_stripe_size;
2144         stripe_count = lsa->lsa_stripe_count;
2145         pool_name = lsa->lsa_pool_name;
2146
2147         setstripe_args_init(lsa);
2148
2149         lsa->lsa_stripe_size = stripe_size;
2150         lsa->lsa_stripe_count = stripe_count;
2151         lsa->lsa_pool_name = pool_name;
2152 }
2153
2154 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2155 {
2156         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2157                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2158                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2159                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2160                 lsa->lsa_pool_name != NULL ||
2161                 lsa->lsa_comp_end != 0);
2162 }
2163
2164 /**
2165  * comp_args_to_layout() - Create or extend a composite layout.
2166  * @composite:       Pointer to the composite layout.
2167  * @lsa:             Stripe options for the new component.
2168  *
2169  * This function creates or extends a composite layout by adding a new
2170  * component with stripe options from @lsa.
2171  *
2172  * Return: 0 on success or an error code on failure.
2173  */
2174 static int comp_args_to_layout(struct llapi_layout **composite,
2175                                struct lfs_setstripe_args *lsa,
2176                                bool set_extent)
2177 {
2178         struct llapi_layout *layout = *composite;
2179         uint64_t prev_end = 0;
2180         int i = 0, rc;
2181
2182         if (layout == NULL) {
2183                 layout = llapi_layout_alloc();
2184                 if (layout == NULL) {
2185                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2186                                 strerror(errno));
2187                         return -ENOMEM;
2188                 }
2189                 *composite = layout;
2190         } else {
2191                 uint64_t start;
2192
2193                 /* Get current component extent, current component
2194                  * must be the tail component. */
2195                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2196                 if (rc) {
2197                         fprintf(stderr, "Get comp extent failed. %s\n",
2198                                 strerror(errno));
2199                         return rc;
2200                 }
2201
2202                 if (lsa->lsa_first_comp)
2203                         prev_end = 0;
2204
2205                 if (lsa->lsa_first_comp)
2206                         rc = llapi_layout_add_first_comp(layout);
2207                 else
2208                         rc = llapi_layout_comp_add(layout);
2209                 if (rc) {
2210                         fprintf(stderr, "Add component failed. %s\n",
2211                                 strerror(errno));
2212                         return rc;
2213                 }
2214         }
2215         /* reset lsa_first_comp */
2216         lsa->lsa_first_comp = false;
2217
2218         if (set_extent) {
2219                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2220                                                   lsa->lsa_comp_end);
2221                 if (rc) {
2222                         fprintf(stderr, "Set extent [%lu, %llu) failed. %s\n",
2223                                 prev_end, lsa->lsa_comp_end, strerror(errno));
2224                         return rc;
2225                 }
2226         }
2227
2228         /* Data-on-MDT component setting */
2229         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2230                 /* In case of Data-on-MDT patterns the only extra option
2231                  * applicable is stripe size option. */
2232                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2233                         fprintf(stderr, "Option 'stripe-count' can't be "
2234                                 "specified with Data-on-MDT component: %lld\n",
2235                                 lsa->lsa_stripe_count);
2236                         return -EINVAL;
2237                 }
2238                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2239                         fprintf(stderr, "Option 'stripe-size' can't be "
2240                                 "specified with Data-on-MDT component: %llu\n",
2241                                 lsa->lsa_stripe_size);
2242                         return -EINVAL;
2243                 }
2244                 if (lsa->lsa_nr_tgts != 0) {
2245                         fprintf(stderr, "Option 'ost-list' can't be specified "
2246                                 "with Data-on-MDT component: '%i'\n",
2247                                 lsa->lsa_nr_tgts);
2248                         return -EINVAL;
2249                 }
2250                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2251                         fprintf(stderr, "Option 'stripe-offset' can't be "
2252                                 "specified with Data-on-MDT component: %lld\n",
2253                                 lsa->lsa_stripe_off);
2254                         return -EINVAL;
2255                 }
2256                 if (lsa->lsa_pool_name != 0) {
2257                         fprintf(stderr, "Option 'pool' can't be specified "
2258                                 "with Data-on-MDT component: '%s'\n",
2259                                 lsa->lsa_pool_name);
2260                         return -EINVAL;
2261                 }
2262
2263                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2264                 if (rc) {
2265                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2266                                 lsa->lsa_pattern, strerror(errno));
2267                         return rc;
2268                 }
2269                 /* Data-on-MDT component has always single stripe up to end */
2270                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2271         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2272                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2273                 if (rc) {
2274                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2275                                 lsa->lsa_pattern, strerror(errno));
2276                         return rc;
2277                 }
2278         }
2279
2280         rc = llapi_layout_stripe_size_set(layout, lsa->lsa_stripe_size);
2281         if (rc) {
2282                 fprintf(stderr, "Set stripe size %llu failed: %s\n",
2283                         lsa->lsa_stripe_size, strerror(errno));
2284                 return rc;
2285         }
2286
2287         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2288         if (rc) {
2289                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2290                         lsa->lsa_stripe_count, strerror(errno));
2291                 return rc;
2292         }
2293
2294         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2295         if (rc) {
2296                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2297                         lsa->lsa_comp_flags, strerror(errno));
2298                 return rc;
2299         }
2300
2301         if (lsa->lsa_pool_name != NULL) {
2302                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2303                 if (rc) {
2304                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2305                                 lsa->lsa_pool_name, strerror(errno));
2306                         return rc;
2307                 }
2308         } else {
2309                 rc = llapi_layout_pool_name_set(layout, "");
2310                 if (rc) {
2311                         fprintf(stderr, "Clear pool name failed: %s\n",
2312                                 strerror(errno));
2313                         return rc;
2314                 }
2315         }
2316
2317         if (lsa->lsa_nr_tgts > 0) {
2318                 if (lsa->lsa_stripe_count > 0 &&
2319                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2320                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2321                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2322                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2323                                 lsa->lsa_stripe_count, lsa->lsa_nr_tgts);
2324                         return -EINVAL;
2325                 }
2326                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2327                         rc = llapi_layout_ost_index_set(layout, i,
2328                                                         lsa->lsa_tgts[i]);
2329                         if (rc)
2330                                 break;
2331                 }
2332         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2333                    lsa->lsa_stripe_off != -1) {
2334                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2335         }
2336         if (rc) {
2337                 fprintf(stderr, "Set ost index %d failed. %s\n",
2338                         i, strerror(errno));
2339                 return rc;
2340         }
2341
2342         return 0;
2343 }
2344
2345 static int build_component(struct llapi_layout **layout,
2346                            struct lfs_setstripe_args *lsa, bool set_extent)
2347 {
2348         int rc;
2349
2350         rc = comp_args_to_layout(layout, lsa, set_extent);
2351         if (rc)
2352                 return rc;
2353
2354         if (lsa->lsa_mirror_count > 0) {
2355                 rc = llapi_layout_mirror_count_set(*layout,
2356                                                    lsa->lsa_mirror_count);
2357                 if (rc)
2358                         return rc;
2359
2360                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2361                 if (rc)
2362                         return rc;
2363                 lsa->lsa_mirror_count = 0;
2364         }
2365
2366         return rc;
2367 }
2368
2369 static int build_layout_from_yaml_node(struct cYAML *node,
2370                                        struct llapi_layout **layout,
2371                                        struct lfs_setstripe_args *lsa,
2372                                        __u32 *osts)
2373 {
2374         char *string;
2375         int rc = 0;
2376
2377         while (node) {
2378                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2379                         /* go deep to sub blocks */
2380                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2381                                                          lsa, osts);
2382                         if (rc)
2383                                 return rc;
2384                 } else {
2385                         if (node->cy_string == NULL)
2386                                 return -EINVAL;
2387
2388                         string = node->cy_string;
2389                         /* skip leading lmm_ if present, to simplify parsing */
2390                         if (strncmp(string, "lmm_", 4) == 0)
2391                                 string += 4;
2392
2393                         if (node->cy_type == CYAML_TYPE_STRING) {
2394                                 if (!strcmp(string, "lcme_extent.e_end")) {
2395                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2396                                             !strcmp(node->cy_valuestring, "eof"))
2397                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2398                                 } else if (!strcmp(string, "pool")) {
2399                                         lsa->lsa_pool_name = node->cy_valuestring;
2400                                 } else if (!strcmp(string, "pattern")) {
2401                                         if (!strcmp(node->cy_valuestring, "mdt"))
2402                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2403                                         if (!strcmp(node->cy_valuestring,
2404                                                     "raid0,overstriped"))
2405                                                 lsa->lsa_pattern =
2406                                                         LLAPI_LAYOUT_OVERSTRIPING;
2407                                 } else if (!strcmp(string, "lcme_flags")) {
2408                                         rc = comp_str2flags(node->cy_valuestring,
2409                                                             &lsa->lsa_comp_flags,
2410                                                             &lsa->lsa_comp_neg_flags);
2411                                         if (rc)
2412                                                 return rc;
2413                                         /* Only template flags have meaning in
2414                                          * the layout for a new file
2415                                          */
2416                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2417                                 }
2418                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2419                                 if (!strcmp(string, "lcm_mirror_count")) {
2420                                         lsa->lsa_mirror_count = node->cy_valueint;
2421                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2422                                         if (node->cy_valueint != 0 || *layout != NULL) {
2423                                                 rc = build_component(layout, lsa, true);
2424                                                 if (rc)
2425                                                         return rc;
2426                                         }
2427
2428                                         if (node->cy_valueint == 0)
2429                                                 lsa->lsa_first_comp = true;
2430
2431                                         /* initialize lsa */
2432                                         setstripe_args_init(lsa);
2433                                         lsa->lsa_tgts = osts;
2434                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2435                                         if (node->cy_valueint == -1)
2436                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2437                                         else
2438                                                 lsa->lsa_comp_end = node->cy_valueint;
2439                                 } else if (!strcmp(string, "stripe_count")) {
2440                                         lsa->lsa_stripe_count = node->cy_valueint;
2441                                 } else if (!strcmp(string, "stripe_size")) {
2442                                         lsa->lsa_stripe_size = node->cy_valueint;
2443                                 } else if (!strcmp(string, "stripe_offset")) {
2444                                         lsa->lsa_stripe_off = node->cy_valueint;
2445                                 } else if (!strcmp(string, "l_ost_idx")) {
2446                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2447                                         lsa->lsa_nr_tgts++;
2448                                 }
2449                         }
2450                 }
2451                 node = node->cy_next;
2452         }
2453
2454         return rc;
2455 }
2456
2457 static int lfs_comp_create_from_yaml(char *template,
2458                                      struct llapi_layout **layout,
2459                                      struct lfs_setstripe_args *lsa,
2460                                      __u32 *osts)
2461 {
2462         struct cYAML *tree = NULL, *err_rc = NULL;
2463         int rc = 0;
2464
2465         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2466         if (!tree) {
2467                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2468                         progname, template);
2469                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2470                                   "can't parse", &err_rc);
2471                 cYAML_print_tree2file(stderr, err_rc);
2472                 cYAML_free_tree(err_rc);
2473                 rc = -EINVAL;
2474                 goto err;
2475         }
2476
2477         /* initialize lsa for plain file */
2478         setstripe_args_init(lsa);
2479         lsa->lsa_tgts = osts;
2480
2481         rc = build_layout_from_yaml_node(tree, layout, lsa, osts);
2482         if (rc) {
2483                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2484                         progname, template);
2485                 goto err;
2486         } else {
2487                 rc = build_component(layout, lsa, *layout != NULL);
2488         }
2489         /* clean clean lsa */
2490         setstripe_args_init(lsa);
2491
2492 err:
2493         if (tree)
2494                 cYAML_free_tree(tree);
2495         return rc;
2496 }
2497
2498 /* In 'lfs setstripe --component-add' mode, we need to fetch the extent
2499  * end of the last component in the existing file, and adjust the
2500  * first extent start of the components to be added accordingly. */
2501 static int adjust_first_extent(char *fname, struct llapi_layout *layout)
2502 {
2503         struct llapi_layout *head;
2504         uint64_t start, end, stripe_size, prev_end = 0;
2505         int rc;
2506
2507         if (layout == NULL) {
2508                 fprintf(stderr,
2509                         "%s setstripe: layout must be specified\n",
2510                         progname);
2511                 return -EINVAL;
2512         }
2513
2514         errno = 0;
2515         head = llapi_layout_get_by_path(fname, 0);
2516         if (head == NULL) {
2517                 fprintf(stderr,
2518                         "%s setstripe: cannot read layout from '%s': %s\n",
2519                         progname, fname, strerror(errno));
2520                 return -EINVAL;
2521         } else if (errno == ENODATA) {
2522                 /* file without LOVEA, this component-add will be turned
2523                  * into a component-create. */
2524                 llapi_layout_free(head);
2525                 return -ENODATA;
2526         } else if (!llapi_layout_is_composite(head)) {
2527                 fprintf(stderr, "%s setstripe: '%s' not a composite file\n",
2528                         progname, fname);
2529                 llapi_layout_free(head);
2530                 return -EINVAL;
2531         }
2532
2533         rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
2534         if (rc) {
2535                 fprintf(stderr, "%s setstripe: cannot get prev extent: %s\n",
2536                         progname, strerror(errno));
2537                 llapi_layout_free(head);
2538                 return rc;
2539         }
2540
2541         llapi_layout_free(head);
2542
2543         /* Make sure we use the first component of the layout to be added. */
2544         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
2545         if (rc < 0) {
2546                 fprintf(stderr,
2547                         "%s setstripe: cannot move component cursor: %s\n",
2548                         progname, strerror(errno));
2549                 return rc;
2550         }
2551
2552         rc = llapi_layout_comp_extent_get(layout, &start, &end);
2553         if (rc) {
2554                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2555                         progname, strerror(errno));
2556                 return rc;
2557         }
2558
2559         if (start > prev_end || end <= prev_end) {
2560                 fprintf(stderr,
2561                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
2562                         progname, start, end, prev_end);
2563                 return -EINVAL;
2564         }
2565
2566         rc = llapi_layout_stripe_size_get(layout, &stripe_size);
2567         if (rc) {
2568                 fprintf(stderr, "%s setstripe: cannot get stripe size: %s\n",
2569                         progname, strerror(errno));
2570                 return rc;
2571         }
2572
2573         if (stripe_size != LLAPI_LAYOUT_DEFAULT &&
2574             (prev_end & (stripe_size - 1))) {
2575                 fprintf(stderr,
2576                         "%s setstripe: stripe size %lu not aligned with %lu\n",
2577                         progname, stripe_size, prev_end);
2578                 return -EINVAL;
2579         }
2580
2581         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
2582         if (rc) {
2583                 fprintf(stderr,
2584                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
2585                         progname, prev_end, end, strerror(errno));
2586                 return rc;
2587         }
2588
2589         return 0;
2590 }
2591
2592 static inline bool arg_is_eof(char *arg)
2593 {
2594         return !strncmp(arg, "-1", strlen("-1")) ||
2595                !strncmp(arg, "EOF", strlen("EOF")) ||
2596                !strncmp(arg, "eof", strlen("eof"));
2597 }
2598
2599 /**
2600  * lfs_mirror_alloc() - Allocate a mirror argument structure.
2601  *
2602  * Return: Valid mirror_args pointer on success and
2603  *         NULL if memory allocation fails.
2604  */
2605 static struct mirror_args *lfs_mirror_alloc(void)
2606 {
2607         struct mirror_args *mirror = NULL;
2608
2609         while (1) {
2610                 mirror = calloc(1, sizeof(*mirror));
2611                 if (mirror != NULL)
2612                         break;
2613
2614                 sleep(1);
2615         }
2616
2617         return mirror;
2618 }
2619
2620 /**
2621  * lfs_mirror_free() - Free memory allocated for a mirror argument
2622  *                     structure.
2623  * @mirror: Previously allocated mirror argument structure by
2624  *          lfs_mirror_alloc().
2625  *
2626  * Free memory allocated for @mirror.
2627  *
2628  * Return: void.
2629  */
2630 static void lfs_mirror_free(struct mirror_args *mirror)
2631 {
2632         if (mirror->m_layout != NULL)
2633                 llapi_layout_free(mirror->m_layout);
2634         free(mirror);
2635 }
2636
2637 /**
2638  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
2639  * @mirror_list: Previously allocated mirror list.
2640  *
2641  * Free memory allocated for @mirror_list.
2642  *
2643  * Return: void.
2644  */
2645 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
2646 {
2647         struct mirror_args *next_mirror = NULL;
2648
2649         while (mirror_list != NULL) {
2650                 next_mirror = mirror_list->m_next;
2651                 lfs_mirror_free(mirror_list);
2652                 mirror_list = next_mirror;
2653         }
2654 }
2655
2656 enum {
2657         LFS_POOL_OPT = 3,
2658         LFS_COMP_COUNT_OPT,
2659         LFS_COMP_START_OPT,
2660         LFS_COMP_FLAGS_OPT,
2661         LFS_COMP_DEL_OPT,
2662         LFS_COMP_SET_OPT,
2663         LFS_COMP_ADD_OPT,
2664         LFS_COMP_NO_VERIFY_OPT,
2665         LFS_PROJID_OPT,
2666         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
2667         LFS_MIRROR_ID_OPT,
2668         LFS_MIRROR_STATE_OPT,
2669         LFS_LAYOUT_COPY,
2670         LFS_MIRROR_INDEX_OPT,
2671         LFS_LAYOUT_FOREIGN_OPT,
2672         LFS_MODE_OPT,
2673 };
2674
2675 /* functions */
2676 static int lfs_setstripe_internal(int argc, char **argv,
2677                                   enum setstripe_origin opc)
2678 {
2679         struct lfs_setstripe_args        lsa = { 0 };
2680         struct llapi_stripe_param       *param = NULL;
2681         struct find_param                migrate_mdt_param = {
2682                 .fp_max_depth = -1,
2683                 .fp_mdt_index = -1,
2684         };
2685         char                            *fname;
2686         int                              result = 0;
2687         int                              result2 = 0;
2688         char                            *end;
2689         int                              c;
2690         int                              delete = 0;
2691         unsigned long long               size_units = 1;
2692         bool                             migrate_mode = false;
2693         bool                             migrate_mdt_mode = false;
2694         bool                             setstripe_mode = false;
2695         bool                             migration_block = false;
2696         __u64                            migration_flags = 0;
2697         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
2698         int                              comp_del = 0, comp_set = 0;
2699         int                              comp_add = 0;
2700         __u32                            comp_id = 0;
2701         struct llapi_layout             *layout = NULL;
2702         struct llapi_layout             **lpp = &layout;
2703         bool                             mirror_mode = false;
2704         bool                             has_m_file = false;
2705         __u32                            mirror_count = 0;
2706         enum mirror_flags                mirror_flags = 0;
2707         struct mirror_args              *mirror_list = NULL;
2708         struct mirror_args              *new_mirror = NULL;
2709         struct mirror_args              *last_mirror = NULL;
2710         __u16                            mirror_id = 0;
2711         char                             cmd[PATH_MAX];
2712         bool from_yaml = false;
2713         bool from_copy = false;
2714         char *template = NULL;
2715         bool foreign_mode = false;
2716         char *xattr = NULL;
2717         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
2718         char *mode_opt = NULL;
2719         mode_t previous_umask = 0;
2720         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
2721
2722         struct option long_opts[] = {
2723 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
2724 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
2725         /* --block is only valid in migrate mode */
2726         { .val = 'b',   .name = "block",        .has_arg = no_argument },
2727         { .val = LFS_COMP_ADD_OPT,
2728                         .name = "comp-add",     .has_arg = no_argument },
2729         { .val = LFS_COMP_ADD_OPT,
2730                         .name = "component-add", .has_arg = no_argument },
2731         { .val = LFS_COMP_DEL_OPT,
2732                         .name = "comp-del",     .has_arg = no_argument },
2733         { .val = LFS_COMP_DEL_OPT,
2734                         .name = "component-del", .has_arg = no_argument },
2735         { .val = LFS_COMP_FLAGS_OPT,
2736                         .name = "comp-flags",   .has_arg = required_argument },
2737         { .val = LFS_COMP_FLAGS_OPT,
2738                         .name = "component-flags",
2739                                                 .has_arg = required_argument },
2740         { .val = LFS_COMP_SET_OPT,
2741                         .name = "comp-set",     .has_arg = no_argument },
2742         { .val = LFS_COMP_SET_OPT,
2743                         .name = "component-set",
2744                                                 .has_arg = no_argument},
2745         { .val = LFS_COMP_NO_VERIFY_OPT,
2746                         .name = "no-verify",    .has_arg = no_argument},
2747         { .val = LFS_LAYOUT_FLAGS_OPT,
2748                         .name = "flags",        .has_arg = required_argument},
2749         { .val = LFS_LAYOUT_FOREIGN_OPT,
2750                         .name = "foreign",      .has_arg = optional_argument},
2751         { .val = LFS_MIRROR_ID_OPT,
2752                         .name = "mirror-id",    .has_arg = required_argument},
2753         { .val = LFS_MODE_OPT,
2754                         .name = "mode",         .has_arg = required_argument},
2755         { .val = LFS_LAYOUT_COPY,
2756                         .name = "copy",         .has_arg = required_argument},
2757         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
2758         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
2759         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
2760         { .val = 'C',   .name = "overstripe-count",
2761                                                 .has_arg = required_argument},
2762         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
2763         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
2764         /* --non-direct is only valid in migrate mode */
2765         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
2766         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
2767         { .val = 'E',   .name = "component-end",
2768                                                 .has_arg = required_argument},
2769         { .val = 'f',   .name = "file",         .has_arg = required_argument },
2770 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
2771 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
2772 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
2773 /* find { .val = 'h',   .name = "help",         .has_arg = no_argument }, */
2774         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
2775         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
2776         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
2777         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
2778         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
2779         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
2780         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
2781         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
2782         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
2783         /* --non-block is only valid in migrate mode */
2784         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
2785         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
2786         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
2787 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2788         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
2789         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
2790 #endif
2791         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
2792 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
2793 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
2794 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
2795 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
2796         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
2797         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
2798 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
2799 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
2800 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
2801 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
2802         /* --verbose is only valid in migrate mode */
2803         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
2804         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
2805         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
2806         { .name = NULL } };
2807
2808         setstripe_args_init(&lsa);
2809
2810         migrate_mode = (opc == SO_MIGRATE);
2811         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
2812         setstripe_mode = (opc == SO_SETSTRIPE);
2813
2814         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
2815         progname = cmd;
2816         while ((c = getopt_long(argc, argv,
2817                                 "bc:C:dDE:f:H:i:I:m:N::no:p:L:s:S:vx:y:",
2818                                 long_opts, NULL)) >= 0) {
2819                 switch (c) {
2820                 case 0:
2821                         /* Long options. */
2822                         break;
2823                 case LFS_COMP_ADD_OPT:
2824                         comp_add = 1;
2825                         break;
2826                 case LFS_COMP_DEL_OPT:
2827                         comp_del = 1;
2828                         break;
2829                 case LFS_COMP_FLAGS_OPT:
2830                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
2831                                                 &lsa.lsa_comp_neg_flags);
2832                         if (result != 0)
2833                                 goto usage_error;
2834                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
2835                                 fprintf(stderr, "%s: inverted flags are not supported\n",
2836                                         progname);
2837                                 goto usage_error;
2838                         }
2839                         if (lsa.lsa_comp_neg_flags & LCME_FL_STALE) {
2840                                 fprintf(stderr,
2841                                         "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
2842                                         progname);
2843                                 result = -EINVAL;
2844                                 goto error;
2845                         }
2846
2847                         break;
2848                 case LFS_COMP_SET_OPT:
2849                         comp_set = 1;
2850                         break;
2851                 case LFS_COMP_NO_VERIFY_OPT:
2852                         mirror_flags |= MF_NO_VERIFY;
2853                         break;
2854                 case LFS_MIRROR_ID_OPT:
2855                         mirror_id = strtoul(optarg, &end, 0);
2856                         if (*end != '\0' || mirror_id == 0) {
2857                                 fprintf(stderr,
2858                                         "%s %s: invalid mirror ID '%s'\n",
2859                                         progname, argv[0], optarg);
2860                                 goto usage_error;
2861                         }
2862                         break;
2863                 case LFS_LAYOUT_FLAGS_OPT: {
2864                         uint32_t neg_flags;
2865
2866                         /* check for numeric flags (foreign and mirror cases) */
2867                         if (setstripe_mode && !mirror_mode && !last_mirror) {
2868                                 flags = strtoul(optarg, &end, 16);
2869                                 if (*end != '\0') {
2870                                         fprintf(stderr,
2871                                                 "%s %s: bad flags '%s'\n",
2872                                                 progname, argv[0], optarg);
2873                                         return CMD_HELP;
2874                                 }
2875                                 break;
2876                         }
2877
2878                         if (!mirror_mode || !last_mirror) {
2879                                 fprintf(stderr, "error: %s: --flags must be specified with --mirror-count|-N option\n",
2880                                         progname);
2881                                 goto usage_error;
2882                         }
2883
2884                         result = comp_str2flags(optarg, &last_mirror->m_flags,
2885                                                 &neg_flags);
2886                         if (result != 0)
2887                                 goto usage_error;
2888
2889                         if (neg_flags) {
2890                                 fprintf(stderr, "%s: inverted flags are not supported\n",
2891                                         progname);
2892                                 result = -EINVAL;
2893                                 goto usage_error;
2894                         }
2895                         if (last_mirror->m_flags & ~LCME_USER_FLAGS) {
2896                                 fprintf(stderr,
2897                                         "%s: unsupported mirror flags: %s\n",
2898                                         progname, optarg);
2899                                 result = -EINVAL;
2900                                 goto error;
2901                         }
2902                         break;
2903                 }
2904                 case LFS_LAYOUT_FOREIGN_OPT:
2905                         if (optarg != NULL) {
2906                                 /* check pure numeric */
2907                                 type = strtoul(optarg, &end, 0);
2908                                 if (*end) {
2909                                         /* check name */
2910                                         type = check_foreign_type_name(optarg);
2911                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
2912                                                 fprintf(stderr,
2913                                                         "%s %s: unrecognized foreign type '%s'\n",
2914                                                         progname, argv[0],
2915                                                         optarg);
2916                                                 return CMD_HELP;
2917                                         }
2918                                 }
2919                         }
2920                         foreign_mode = true;
2921                         break;
2922                 case LFS_MODE_OPT:
2923                         mode_opt = optarg;
2924                         if (mode_opt != NULL) {
2925                                 mode = strtoul(mode_opt, &end, 8);
2926                                 if (*end != '\0') {
2927                                         fprintf(stderr,
2928                                                 "%s %s: bad mode '%s'\n",
2929                                                 progname, argv[0], mode_opt);
2930                                         return CMD_HELP;
2931                                 }
2932                                 previous_umask = umask(0);
2933                         }
2934                         break;
2935                 case LFS_LAYOUT_COPY:
2936                         from_copy = true;
2937                         template = optarg;
2938                         break;
2939                 case 'b':
2940                         if (!migrate_mode) {
2941                                 fprintf(stderr,
2942                                         "%s %s: -b|--block valid only for migrate command\n",
2943                                         progname, argv[0]);
2944                                 goto usage_error;
2945                         }
2946                         migration_block = true;
2947                         break;
2948                 case 'C':
2949                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
2950                         /* fall through */
2951                 case 'c':
2952                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
2953                         if (*end != '\0') {
2954                                 fprintf(stderr,
2955                                         "%s %s: invalid stripe count '%s'\n",
2956                                         progname, argv[0], optarg);
2957                                 goto usage_error;
2958                         }
2959
2960                         if (lsa.lsa_stripe_count == -1)
2961                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
2962                         break;
2963                 case 'd':
2964                         /* delete the default striping pattern */
2965                         delete = 1;
2966                         if (opc == SO_MIRROR_SPLIT) {
2967                                 if (has_m_file) {
2968                                         fprintf(stderr,
2969                                               "%s %s: -d cannot used with -f\n",
2970                                                 progname, argv[0]);
2971                                         goto usage_error;
2972                                 }
2973                                 mirror_flags |= MF_DESTROY;
2974                         }
2975                         break;
2976                 case 'D':
2977                         if (!migrate_mode) {
2978                                 fprintf(stderr,
2979                                         "%s %s: -D|--non-direct is valid "
2980                                         "only for migrate command\n",
2981                                         progname, argv[0]);
2982                                 goto usage_error;
2983                         }
2984                         migration_flags |= MIGRATION_NONDIRECT;
2985                         break;
2986                 case 'E':
2987                         if (lsa.lsa_comp_end != 0) {
2988                                 result = comp_args_to_layout(lpp, &lsa, true);
2989                                 if (result) {
2990                                         fprintf(stderr,
2991                                                 "%s %s: invalid layout\n",
2992                                                 progname, argv[0]);
2993                                         goto usage_error;
2994                                 }
2995
2996                                 setstripe_args_init_inherit(&lsa);
2997                         }
2998
2999                         if (arg_is_eof(optarg)) {
3000                                 lsa.lsa_comp_end = LUSTRE_EOF;
3001                         } else {
3002                                 result = llapi_parse_size(optarg,
3003                                                         &lsa.lsa_comp_end,
3004                                                         &size_units, 0);
3005                                 if (result) {
3006                                         fprintf(stderr,
3007                                                 "%s %s: invalid component end '%s'\n",
3008                                                 progname, argv[0], optarg);
3009                                         goto usage_error;
3010                                 }
3011                         }
3012                         break;
3013                 case 'H':
3014                         if (!migrate_mode) {
3015                                 fprintf(stderr, "--mdt-hash is valid only for migrate command\n");
3016                                 return CMD_HELP;
3017                         }
3018
3019                         lsa.lsa_pattern = check_hashtype(optarg);
3020                         if (lsa.lsa_pattern == 0) {
3021                                 fprintf(stderr,
3022                                         "%s %s: bad stripe hash type '%s'\n",
3023                                         progname, argv[0], optarg);
3024                                 return CMD_HELP;
3025                         }
3026                         break;
3027                 case 'i':
3028                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3029                         if (*end != '\0') {
3030                                 fprintf(stderr,
3031                                         "%s %s: invalid stripe offset '%s'\n",
3032                                         progname, argv[0], optarg);
3033                                 goto usage_error;
3034                         }
3035                         if (lsa.lsa_stripe_off == -1)
3036                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3037                         break;
3038                 case 'I':
3039                         comp_id = strtoul(optarg, &end, 0);
3040                         if (*end != '\0' || comp_id == 0 ||
3041                             comp_id > LCME_ID_MAX) {
3042                                 fprintf(stderr,
3043                                         "%s %s: invalid component ID '%s'\n",
3044                                         progname, argv[0], optarg);
3045                                 goto usage_error;
3046                         }
3047                         break;
3048                 case 'f':
3049                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3050                                 fprintf(stderr,
3051                                         "error: %s: invalid option: %s\n",
3052                                         progname, argv[optopt + 1]);
3053                                 goto usage_error;
3054                         }
3055                         if (opc == SO_MIRROR_EXTEND) {
3056                                 if (last_mirror == NULL) {
3057                                         fprintf(stderr,
3058                                 "error: %s: '-N' must exist in front of '%s'\n",
3059                                                 progname, argv[optopt + 1]);
3060                                         goto usage_error;
3061                                 }
3062                                 last_mirror->m_file = optarg;
3063                                 last_mirror->m_count = 1;
3064                         } else {
3065                                 /* mirror split */
3066                                 if (mirror_list == NULL)
3067                                         mirror_list = lfs_mirror_alloc();
3068                                 mirror_list->m_file = optarg;
3069                         }
3070                         has_m_file = true;
3071                         break;
3072                 case 'L':
3073                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3074                                 /* Can be only the first component */
3075                                 if (layout != NULL) {
3076                                         result = -EINVAL;
3077                                         fprintf(stderr, "error: 'mdt' layout "
3078                                                 "can be only the first one\n");
3079                                         goto error;
3080                                 }
3081                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3082                                         result = -EFBIG;
3083                                         fprintf(stderr, "error: 'mdt' layout "
3084                                                 "size is too big\n");
3085                                         goto error;
3086                                 }
3087                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3088                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3089                                 result = -EINVAL;
3090                                 fprintf(stderr, "error: layout '%s' is "
3091                                         "unknown, supported layouts are: "
3092                                         "'mdt', 'raid0'\n", argv[optind]);
3093                                 goto error;
3094                         }
3095                         break;
3096                 case 'm':
3097                         if (!migrate_mode) {
3098                                 fprintf(stderr,
3099                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3100                                         progname, argv[0]);
3101                                 goto usage_error;
3102                         }
3103                         migrate_mdt_mode = true;
3104                         lsa.lsa_nr_tgts = parse_targets(tgts,
3105                                                 sizeof(tgts) / sizeof(__u32),
3106                                                 lsa.lsa_nr_tgts, optarg, NULL);
3107                         if (lsa.lsa_nr_tgts < 0) {
3108                                 fprintf(stderr,
3109                                         "%s %s: invalid MDT target(s) '%s'\n",
3110                                         progname, argv[0], optarg);
3111                                 return CMD_HELP;
3112                         }
3113
3114                         lsa.lsa_tgts = tgts;
3115                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3116                                 lsa.lsa_stripe_off = tgts[0];
3117                         break;
3118                 case 'n':
3119                         if (!migrate_mode) {
3120                                 fprintf(stderr,
3121                                         "%s %s: -n|--non-block valid only for migrate command\n",
3122                                         progname, argv[0]);
3123                                 goto usage_error;
3124                         }
3125                         migration_flags |= MIGRATION_NONBLOCK;
3126                         break;
3127                 case 'N':
3128                         if (opc == SO_SETSTRIPE) {
3129                                 opc = SO_MIRROR_CREATE;
3130                                 mirror_mode = true;
3131                         }
3132                         mirror_count = 1;
3133                         if (optarg != NULL) {
3134                                 mirror_count = strtoul(optarg, &end, 0);
3135                                 if (*end != '\0' || mirror_count == 0) {
3136                                         fprintf(stderr,
3137                                                 "error: %s: bad mirror count: %s\n",
3138                                                 progname, optarg);
3139                                         result = -EINVAL;
3140                                         goto error;
3141                                 }
3142                         }
3143
3144                         new_mirror = lfs_mirror_alloc();
3145                         new_mirror->m_count = mirror_count;
3146
3147                         if (mirror_list == NULL)
3148                                 mirror_list = new_mirror;
3149
3150                         if (last_mirror != NULL) {
3151                                 /* wrap up last mirror */
3152                                 if (lsa.lsa_comp_end == 0)
3153                                         lsa.lsa_comp_end = LUSTRE_EOF;
3154
3155                                 result = comp_args_to_layout(lpp, &lsa, true);
3156                                 if (result) {
3157                                         lfs_mirror_free(new_mirror);
3158                                         goto error;
3159                                 }
3160
3161                                 setstripe_args_init_inherit(&lsa);
3162
3163                                 last_mirror->m_next = new_mirror;
3164                         }
3165
3166                         last_mirror = new_mirror;
3167                         lpp = &last_mirror->m_layout;
3168                         break;
3169                 case 'o':
3170 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3171                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3172                                 fprintf(stderr, "warning: '--ost-list' is "
3173                                         "deprecated, use '--ost' instead\n");
3174 #endif
3175                         /* -o allows overstriping, and must note it because
3176                          * parse_targets is shared with MDT striping, which
3177                          * does not allow duplicates
3178                          */
3179                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3180                         lsa.lsa_nr_tgts = parse_targets(tgts,
3181                                                 sizeof(tgts) / sizeof(__u32),
3182                                                 lsa.lsa_nr_tgts, optarg,
3183                                                 &lsa.lsa_pattern);
3184                         if (lsa.lsa_nr_tgts < 0) {
3185                                 fprintf(stderr,
3186                                         "%s %s: invalid OST target(s) '%s'\n",
3187                                         progname, argv[0], optarg);
3188                                 goto usage_error;
3189                         }
3190
3191                         lsa.lsa_tgts = tgts;
3192                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3193                                 lsa.lsa_stripe_off = tgts[0];
3194                         break;
3195                 case 'p':
3196                         if (optarg == NULL)
3197                                 goto usage_error;
3198                         lsa.lsa_pool_name = optarg;
3199
3200                         if (strlen(lsa.lsa_pool_name) == 0 ||
3201                             strncmp(lsa.lsa_pool_name, "none",
3202                                     LOV_MAXPOOLNAME) == 0)
3203                                 lsa.lsa_pool_name = NULL;
3204                         break;
3205                 case 'S':
3206                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3207                                                   &size_units, 0);
3208                         if (result) {
3209                                 fprintf(stderr,
3210                                         "%s %s: invalid stripe size '%s'\n",
3211                                         progname, argv[0], optarg);
3212                                 goto usage_error;
3213                         }
3214                         break;
3215                 case 'v':
3216                         if (!migrate_mode) {
3217                                 fprintf(stderr,
3218                                         "%s %s: -v|--verbose valid only for migrate command\n",
3219                                         progname, argv[0]);
3220                                 goto usage_error;
3221                         }
3222                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3223                         migration_flags = MIGRATION_VERBOSE;
3224                         break;
3225                 case 'x':
3226                         xattr = optarg;
3227                         break;
3228                 case 'y':
3229                         from_yaml = true;
3230                         template = optarg;
3231                         break;
3232                 default:
3233                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3234                                 progname, argv[0], argv[optind - 1]);
3235                         goto usage_error;
3236                 }
3237         }
3238
3239         fname = argv[optind];
3240
3241         if (optind == argc) {
3242                 fprintf(stderr, "%s %s: FILE must be specified\n",
3243                         progname, argv[0]);
3244                 goto usage_error;
3245         }
3246
3247         if (xattr && !foreign_mode) {
3248                 /* only print a warning as this is harmless and will be ignored
3249                  */
3250                 fprintf(stderr,
3251                         "%s %s: xattr has been specified for non-foreign layout\n",
3252                         progname, argv[0]);
3253         } else if (foreign_mode && !xattr) {
3254                 fprintf(stderr,
3255                         "%s %s: xattr must be provided in foreign mode\n",
3256                         progname, argv[0]);
3257                 goto usage_error;
3258         }
3259
3260         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
3261             comp_set || comp_id || delete || from_copy ||
3262             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
3263             lsa.lsa_tgts)) {
3264                 fprintf(stderr,
3265                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
3266                         progname, argv[0]);
3267                 return CMD_HELP;
3268         }
3269
3270         if (mirror_mode && mirror_count == 0) {
3271                 fprintf(stderr,
3272                         "error: %s: --mirror-count|-N option is required\n",
3273                         progname);
3274                 result = -EINVAL;
3275                 goto error;
3276         }
3277
3278         if (mirror_mode) {
3279                 if (lsa.lsa_comp_end == 0)
3280                         lsa.lsa_comp_end = LUSTRE_EOF;
3281         }
3282
3283         if (lsa.lsa_comp_end != 0) {
3284                 result = comp_args_to_layout(lpp, &lsa, true);
3285                 if (result)
3286                         goto error;
3287         }
3288
3289         if (mirror_flags & MF_NO_VERIFY) {
3290                 if (opc != SO_MIRROR_EXTEND) {
3291                         fprintf(stderr,
3292                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
3293                                 progname);
3294                         result = -EINVAL;
3295                         goto error;
3296                 } else if (!has_m_file) {
3297                         fprintf(stderr,
3298                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
3299                                 progname);
3300                         result = -EINVAL;
3301                         goto error;
3302                 }
3303         }
3304
3305         /* Only LCME_FL_INIT flags is used in PFL, and it shouldn't be
3306          * altered by user space tool, so we don't need to support the
3307          * --component-set for this moment. */
3308         if (comp_set && !comp_id) {
3309                 fprintf(stderr, "%s %s: --component-set doesn't have component-id set\n",
3310                         progname, argv[0]);
3311                 goto usage_error;
3312         }
3313
3314         if ((delete + comp_set + comp_del + comp_add) > 1) {
3315                 fprintf(stderr,
3316                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
3317                         progname, argv[0]);
3318                 goto usage_error;
3319         }
3320
3321         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
3322                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
3323                 fprintf(stderr,
3324                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
3325                         progname, argv[0]);
3326                 goto usage_error;
3327         }
3328
3329         if ((comp_set || comp_del) &&
3330             (setstripe_args_specified(&lsa) || layout != NULL)) {
3331                 fprintf(stderr,
3332                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3333                         progname, argv[0]);
3334                 goto usage_error;
3335         }
3336
3337         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3338                 fprintf(stderr,
3339                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3340                         progname, argv[0]);
3341                 goto usage_error;
3342         }
3343
3344         if (comp_add || comp_del) {
3345                 struct stat st;
3346
3347                 result = lstat(fname, &st);
3348                 if (result == 0 && S_ISDIR(st.st_mode)) {
3349                         fprintf(stderr,
3350                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3351                                 progname);
3352                         goto usage_error;
3353                 }
3354
3355                 if (mirror_mode) {
3356                         fprintf(stderr, "error: %s: can't use --component-add "
3357                                 "or --component-del for mirror operation\n",
3358                                 progname);
3359                         goto usage_error;
3360                 }
3361         }
3362
3363         if (comp_add) {
3364                 if (layout == NULL) {
3365                         fprintf(stderr,
3366                                 "%s %s: option -E must be specified with --component-add\n",
3367                                 progname, argv[0]);
3368                         goto usage_error;
3369                 }
3370
3371                 result = adjust_first_extent(fname, layout);
3372                 if (result == -ENODATA)
3373                         comp_add = 0;
3374                 else if (result != 0)
3375                         goto error;
3376         }
3377
3378         if (from_yaml && from_copy) {
3379                 fprintf(stderr,
3380                         "%s: can't specify --yaml and --copy together\n",
3381                         progname);
3382                 goto error;
3383         }
3384
3385         if ((from_yaml || from_copy) &&
3386             (setstripe_args_specified(&lsa) || layout != NULL)) {
3387                 fprintf(stderr, "error: %s: can't specify --yaml with "
3388                         "-c, -S, -i, -o, -p or -E options.\n",
3389                         argv[0]);
3390                 goto error;
3391         }
3392
3393         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
3394                 fprintf(stderr,
3395                         "%s %s: options --non-block and --block are mutually exclusive\n",
3396                         progname, argv[0]);
3397                 goto usage_error;
3398         }
3399
3400         if (!comp_del && !comp_set && (opc != SO_MIRROR_SPLIT) &&
3401             comp_id != 0) {
3402                 fprintf(stderr,
3403                 "%s %s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
3404                         progname, argv[0]);
3405                 goto usage_error;
3406         }
3407
3408         if (migrate_mdt_mode) {
3409                 struct lmv_user_md *lmu;
3410
3411                 /* initialize migrate mdt parameters */
3412                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
3413                                                  LMV_USER_MAGIC_SPECIFIC));
3414                 if (!lmu) {
3415                         fprintf(stderr,
3416                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
3417                                 progname, argv[0], strerror(ENOMEM));
3418                         result = -ENOMEM;
3419                         goto error;
3420                 }
3421                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
3422                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
3423                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
3424                         fprintf(stderr,
3425                                 "%s %s: migrate should specify MDT index\n",
3426                                 progname, argv[0]);
3427                         free(lmu);
3428                         goto usage_error;
3429                 }
3430                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
3431                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
3432                         lmu->lum_hash_type = lsa.lsa_pattern;
3433                 else
3434                         lmu->lum_hash_type = LMV_HASH_TYPE_FNV_1A_64;
3435                 if (lsa.lsa_pool_name)
3436                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
3437                                 sizeof(lmu->lum_pool_name) - 1);
3438                 if (lsa.lsa_nr_tgts > 1) {
3439                         int i;
3440
3441                         if (lsa.lsa_stripe_count > 0 &&
3442                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3443                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
3444                                 fprintf(stderr,
3445                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
3446                                         progname, lsa.lsa_stripe_count,
3447                                                 lsa.lsa_nr_tgts);
3448                                 free(lmu);
3449                                 goto usage_error;
3450                         }
3451
3452                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
3453                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
3454                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
3455                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
3456                 } else {
3457                         lmu->lum_magic = LMV_USER_MAGIC;
3458                 }
3459
3460                 migrate_mdt_param.fp_lmv_md = lmu;
3461                 migrate_mdt_param.fp_migrate = 1;
3462         } else if (layout == NULL) {
3463                 /* initialize stripe parameters */
3464                 param = calloc(1, offsetof(typeof(*param),
3465                                lsp_osts[lsa.lsa_nr_tgts]));
3466                 if (param == NULL) {
3467                         fprintf(stderr,
3468                                 "%s %s: cannot allocate memory for parameters: %s\n",
3469                                 progname, argv[0], strerror(ENOMEM));
3470                         result = -ENOMEM;
3471                         goto error;
3472                 }
3473
3474                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
3475                         param->lsp_stripe_size = lsa.lsa_stripe_size;
3476                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
3477                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
3478                                 param->lsp_stripe_count = -1;
3479                         else
3480                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3481                 }
3482                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3483                         param->lsp_stripe_offset = -1;
3484                 else
3485                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
3486                 param->lsp_stripe_pattern =
3487                                 llapi_pattern_to_lov(lsa.lsa_pattern);
3488                 if (param->lsp_stripe_pattern == EINVAL) {
3489                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
3490                                 argv[0]);
3491                         free(param);
3492                         goto usage_error;
3493                 }
3494                 param->lsp_pool = lsa.lsa_pool_name;
3495                 param->lsp_is_specific = false;
3496                 if (lsa.lsa_nr_tgts > 0) {
3497                         if (lsa.lsa_stripe_count > 0 &&
3498                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3499                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
3500                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
3501                                 fprintf(stderr, "error: %s: stripe count %lld "
3502                                         "doesn't match the number of OSTs: %d\n"
3503                                         , argv[0], lsa.lsa_stripe_count,
3504                                         lsa.lsa_nr_tgts);
3505                                 free(param);
3506                                 goto usage_error;
3507                         }
3508
3509                         param->lsp_is_specific = true;
3510                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
3511                         memcpy(param->lsp_osts, tgts,
3512                                sizeof(*tgts) * lsa.lsa_nr_tgts);
3513                 }
3514         }
3515
3516         if (from_yaml) {
3517                 /* generate a layout from a YAML template */
3518                 result = lfs_comp_create_from_yaml(template, &layout,
3519                                                    &lsa, tgts);
3520                 if (result) {
3521                         fprintf(stderr, "error: %s: can't create composite "
3522                                 "layout from template file %s\n",
3523                                 argv[0], template);
3524                         goto error;
3525                 }
3526         } else if (from_copy) {
3527                 layout = llapi_layout_get_by_path(template, 0);
3528                 if (layout == NULL) {
3529                         fprintf(stderr,
3530                             "%s: can't create composite layout from file %s.\n",
3531                                 progname, template);
3532                         goto error;
3533                 }
3534         }
3535
3536         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
3537                 if (migrate_mdt_mode) {
3538                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
3539                 } else if (migrate_mode) {
3540                         result = lfs_migrate(fname, migration_flags, param,
3541                                              layout);
3542                 } else if (comp_set != 0) {
3543                         result = lfs_component_set(fname, comp_id,
3544                                                    lsa.lsa_comp_flags,
3545                                                    lsa.lsa_comp_neg_flags);
3546                 } else if (comp_del != 0) {
3547                         result = lfs_component_del(fname, comp_id,
3548                                                    lsa.lsa_comp_flags,
3549                                                    lsa.lsa_comp_neg_flags);
3550                 } else if (comp_add != 0) {
3551                         result = lfs_component_add(fname, layout);
3552                 } else if (opc == SO_MIRROR_CREATE) {
3553                         result = mirror_create(fname, mirror_list);
3554                 } else if (opc == SO_MIRROR_EXTEND) {
3555                         result = mirror_extend(fname, mirror_list,
3556                                                mirror_flags);
3557                 } else if (opc == SO_MIRROR_SPLIT) {
3558                         if (mirror_id == 0 && comp_id == 0) {
3559                                 fprintf(stderr,
3560                         "%s %s: no mirror id or component id is specified\n",
3561                                         progname, argv[0]);
3562                                 goto usage_error;
3563                         }
3564                         if (mirror_id != 0)
3565                                 comp_id = mirror_id;
3566                         else
3567                                 mirror_flags |= MF_COMP_ID;
3568                         result = mirror_split(fname, comp_id, mirror_flags,
3569                                               has_m_file ? mirror_list->m_file :
3570                                               NULL);
3571                 } else if (layout != NULL) {
3572                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
3573                                                       mode, layout);
3574                         if (result >= 0) {
3575                                 close(result);
3576                                 result = 0;
3577                         }
3578                 } else if (foreign_mode) {
3579                         result = llapi_file_create_foreign(fname, mode, type,
3580                                                            flags, xattr);
3581                         if (result >= 0) {
3582                                 close(result);
3583                                 result = 0;
3584                         }
3585                 } else {
3586                         result = llapi_file_open_param(fname,
3587                                                        O_CREAT | O_WRONLY,
3588                                                        mode, param);
3589                         if (result >= 0) {
3590                                 close(result);
3591                                 result = 0;
3592                         }
3593                 }
3594                 if (result) {
3595                         /* Save the first error encountered. */
3596                         if (result2 == 0)
3597                                 result2 = result;
3598                         continue;
3599                 }
3600         }
3601
3602         if (mode_opt != NULL)
3603                 umask(previous_umask);
3604
3605         free(param);
3606         free(migrate_mdt_param.fp_lmv_md);
3607         llapi_layout_free(layout);
3608         lfs_mirror_list_free(mirror_list);
3609         return result2;
3610 usage_error:
3611         result = CMD_HELP;
3612 error:
3613         llapi_layout_free(layout);
3614         lfs_mirror_list_free(mirror_list);
3615         return result;
3616 }
3617
3618 static int lfs_poollist(int argc, char **argv)
3619 {
3620         if (argc != 2)
3621                 return CMD_HELP;
3622
3623         return llapi_poollist(argv[1]);
3624 }
3625
3626 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
3627                        char *str)
3628 {
3629         long long t = 0;
3630         int res = 0;
3631         char *endptr = "AD";
3632         char *timebuf;
3633
3634         if (str[0] == '+')
3635                 res = 1;
3636         else if (str[0] == '-')
3637                 res = -1;
3638
3639         if (res)
3640                 str++;
3641
3642         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
3643                 long long val = strtoll(timebuf, &endptr, 0);
3644                 int unit = 1;
3645
3646                 switch (*endptr) {
3647                 case  'y':
3648                         unit *= 52; /* 52 weeks + 1 day below */
3649                 case  'w':      /* fallthrough */
3650                         unit *= 7;
3651                 case '\0': /* days are default unit if none used */
3652                 case  'd':      /* fallthrough */
3653                         unit = (unit + (*endptr == 'y')) * 24;
3654                 case  'h':      /* fallthrough */
3655                         unit *= 60;
3656                 case  'm':      /* fallthrough */
3657                         unit *= 60;
3658                 case  's':      /* fallthrough */
3659                         break;
3660                         /* don't need to multiply by 1 for seconds */
3661                 default:
3662                         fprintf(stderr,
3663                                 "%s find: bad time string '%s': %s\n",
3664                                 progname, timebuf, strerror(EINVAL));
3665                         return LONG_MAX;
3666                 }
3667
3668                 if (param->fp_time_margin == 0 ||
3669                     (*endptr && unit < param->fp_time_margin))
3670                         param->fp_time_margin = unit;
3671
3672                 t += val * unit;
3673         }
3674         if (*time < t) {
3675                 if (res != 0)
3676                         str--;
3677                 fprintf(stderr, "%s find: bad time '%s': too large\n",
3678                         progname, str);
3679                 return LONG_MAX;
3680         }
3681
3682         *set = *time - t;
3683
3684         return res;
3685 }
3686
3687 static int name2uid(unsigned int *id, const char *name)
3688 {
3689         struct passwd *passwd;
3690
3691         passwd = getpwnam(name);
3692         if (passwd == NULL)
3693                 return -ENOENT;
3694         *id = passwd->pw_uid;
3695
3696         return 0;
3697 }
3698
3699 static int name2gid(unsigned int *id, const char *name)
3700 {
3701         struct group *group;
3702
3703         group = getgrnam(name);
3704         if (group == NULL)
3705                 return -ENOENT;
3706         *id = group->gr_gid;
3707
3708         return 0;
3709 }
3710
3711 static inline int name2projid(unsigned int *id, const char *name)
3712 {
3713         return -ENOTSUP;
3714 }
3715
3716 static int uid2name(char **name, unsigned int id)
3717 {
3718         struct passwd *passwd;
3719
3720         passwd = getpwuid(id);
3721         if (passwd == NULL)
3722                 return -ENOENT;
3723         *name = passwd->pw_name;
3724
3725         return 0;
3726 }
3727
3728 static inline int gid2name(char **name, unsigned int id)
3729 {
3730         struct group *group;
3731
3732         group = getgrgid(id);
3733         if (group == NULL)
3734                 return -ENOENT;
3735         *name = group->gr_name;
3736
3737         return 0;
3738 }
3739
3740 static int name2layout(__u32 *layout, char *name)
3741 {
3742         char *ptr, *layout_name;
3743
3744         *layout = 0;
3745         for (ptr = name; ; ptr = NULL) {
3746                 layout_name = strtok(ptr, ",");
3747                 if (layout_name == NULL)
3748                         break;
3749                 if (strcmp(layout_name, "released") == 0)
3750                         *layout |= LOV_PATTERN_F_RELEASED;
3751                 else if (strcmp(layout_name, "raid0") == 0)
3752                         *layout |= LOV_PATTERN_RAID0;
3753                 else if (strcmp(layout_name, "mdt") == 0)
3754                         *layout |= LOV_PATTERN_MDT;
3755                 else if (strcmp(layout_name, "overstriping") == 0)
3756                         *layout |= LOV_PATTERN_OVERSTRIPING;
3757                 else
3758                         return -1;
3759         }
3760         return 0;
3761 }
3762
3763 static int lfs_find(int argc, char **argv)
3764 {
3765         int c, rc;
3766         int ret = 0;
3767         time_t t;
3768         struct find_param param = {
3769                 .fp_max_depth = -1,
3770                 .fp_quiet = 1,
3771                 .fp_time_margin = 24 * 60 * 60,
3772         };
3773         struct option long_opts[] = {
3774         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
3775         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
3776         { .val = LFS_COMP_COUNT_OPT,
3777                         .name = "comp-count",   .has_arg = required_argument },
3778         { .val = LFS_COMP_COUNT_OPT,
3779                         .name = "component-count",
3780                                                 .has_arg = required_argument },
3781         { .val = LFS_COMP_FLAGS_OPT,
3782                         .name = "comp-flags",   .has_arg = required_argument },
3783         { .val = LFS_COMP_FLAGS_OPT,
3784                         .name = "component-flags",
3785                                                 .has_arg = required_argument },
3786         { .val = LFS_COMP_START_OPT,
3787                         .name = "comp-start",   .has_arg = required_argument },
3788         { .val = LFS_COMP_START_OPT,
3789                         .name = "component-start",
3790                                                 .has_arg = required_argument },
3791         { .val = LFS_MIRROR_STATE_OPT,
3792                         .name = "mirror-state", .has_arg = required_argument },
3793         { .val = LFS_LAYOUT_FOREIGN_OPT,
3794                         .name = "foreign",      .has_arg = optional_argument},
3795         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
3796         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
3797         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
3798 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
3799         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
3800         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
3801         { .val = 'E',   .name = "component-end",
3802                                                 .has_arg = required_argument },
3803 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3804         { .val = LFS_LAYOUT_FOREIGN_OPT,
3805                         .name = "foreign",      .has_arg = optional_argument},
3806         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
3807         { .val = 'G',   .name = "group",        .has_arg = required_argument },
3808         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
3809         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
3810         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
3811 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
3812         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3813         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
3814         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
3815         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
3816         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
3817         { .val = 'n',   .name = "name",         .has_arg = required_argument },
3818         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
3819 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
3820         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3821         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3822         /* no short option for pool yet, can be 'p' after 2.18 */
3823         { .val = LFS_POOL_OPT,
3824                         .name = "pool",         .has_arg = required_argument },
3825         { .val = '0',   .name = "print0",       .has_arg = no_argument },
3826         { .val = 'P',   .name = "print",        .has_arg = no_argument },
3827         { .val = LFS_PROJID_OPT,
3828                         .name = "projid",       .has_arg = required_argument },
3829 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3830 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3831 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3832         { .val = 's',   .name = "size",         .has_arg = required_argument },
3833         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3834         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3835         { .val = 't',   .name = "type",         .has_arg = required_argument },
3836         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
3837         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
3838         { .val = 'U',   .name = "user",         .has_arg = required_argument },
3839 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
3840 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
3841         { .name = NULL } };
3842         int pathstart = -1;
3843         int pathend = -1;
3844         int neg_opt = 0;
3845         time_t *xtime;
3846         int *xsign;
3847         int isoption;
3848         char *endptr;
3849
3850         time(&t);
3851
3852         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
3853         while ((c = getopt_long_only(argc, argv,
3854                         "-0A:b:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:v",
3855                         long_opts, NULL)) >= 0) {
3856                 xtime = NULL;
3857                 xsign = NULL;
3858                 if (neg_opt)
3859                         --neg_opt;
3860                 /* '!' is part of option */
3861                 /* when getopt_long_only() finds a string which is not
3862                  * an option nor a known option argument it returns 1
3863                  * in that case if we already have found pathstart and pathend
3864                  * (i.e. we have the list of pathnames),
3865                  * the only supported value is "!"
3866                  */
3867                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
3868                 if (!isoption && pathend != -1) {
3869                         fprintf(stderr, "err: %s: filename|dirname must either "
3870                                         "precede options or follow options\n",
3871                                         argv[0]);
3872                         ret = CMD_HELP;
3873                         goto err;
3874                 }
3875                 if (!isoption && pathstart == -1)
3876                         pathstart = optind - 1;
3877                 if (isoption && pathstart != -1 && pathend == -1)
3878                         pathend = optind - 2;
3879                 switch (c) {
3880                 case 0:
3881                         /* Long options. */
3882                         break;
3883                 case 1:
3884                         /* unknown; opt is "!" or path component,
3885                          * checking done above.
3886                          */
3887                         if (strcmp(optarg, "!") == 0)
3888                                 neg_opt = 2;
3889                         break;
3890                 case 'A':
3891                         xtime = &param.fp_atime;
3892                         xsign = &param.fp_asign;
3893                         param.fp_exclude_atime = !!neg_opt;
3894                         /* no break, this falls through to 'C' for ctime */
3895                 case 'C':
3896                         if (c == 'C') {
3897                                 xtime = &param.fp_ctime;
3898                                 xsign = &param.fp_csign;
3899                                 param.fp_exclude_ctime = !!neg_opt;
3900                         }
3901                         /* no break, this falls through to 'M' for mtime */
3902                 case 'M':
3903                         if (c == 'M') {
3904                                 xtime = &param.fp_mtime;
3905                                 xsign = &param.fp_msign;
3906                                 param.fp_exclude_mtime = !!neg_opt;
3907                         }
3908                         rc = set_time(&param, &t, xtime, optarg);
3909                         if (rc == LONG_MAX) {
3910                                 ret = -1;
3911                                 goto err;
3912                         }
3913                         if (rc)
3914                                 *xsign = rc;
3915                         break;
3916                 case 'b':
3917                         if (optarg[0] == '+') {
3918                                 param.fp_blocks_sign = -1;
3919                                 optarg++;
3920                         } else if (optarg[0] == '-') {
3921                                 param.fp_blocks_sign =  1;
3922                                 optarg++;
3923                         }
3924
3925                         param.fp_blocks_units = 1024;
3926                         ret = llapi_parse_size(optarg, &param.fp_blocks,
3927                                                &param.fp_blocks_units, 0);
3928                         if (ret) {
3929                                 fprintf(stderr, "error: bad blocks '%s'\n",
3930                                         optarg);
3931                                 goto err;
3932                         }
3933                         param.fp_check_blocks = 1;
3934                         param.fp_exclude_blocks = !!neg_opt;
3935                         break;
3936                 case LFS_COMP_COUNT_OPT:
3937                         if (optarg[0] == '+') {
3938                                 param.fp_comp_count_sign = -1;
3939                                 optarg++;
3940                         } else if (optarg[0] == '-') {
3941                                 param.fp_comp_count_sign =  1;
3942                                 optarg++;
3943                         }
3944
3945                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
3946                         if (*endptr != '\0') {
3947                                 fprintf(stderr, "error: bad component count "
3948                                         "'%s'\n", optarg);
3949                                 goto err;
3950                         }
3951                         param.fp_check_comp_count = 1;
3952                         param.fp_exclude_comp_count = !!neg_opt;
3953                         break;
3954                 case LFS_COMP_FLAGS_OPT:
3955                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
3956                                             &param.fp_comp_neg_flags);
3957                         if (rc) {
3958                                 fprintf(stderr, "error: bad component flags "
3959                                         "'%s'\n", optarg);
3960                                 goto err;
3961                         }
3962                         param.fp_check_comp_flags = 1;
3963                         if (neg_opt) {
3964                                 __u32 flags = param.fp_comp_neg_flags;
3965                                 param.fp_comp_neg_flags = param.fp_comp_flags;
3966                                 param.fp_comp_flags = flags;
3967                         }
3968                         break;
3969                 case LFS_COMP_START_OPT:
3970                         if (optarg[0] == '+') {
3971                                 param.fp_comp_start_sign = -1;
3972                                 optarg++;
3973                         } else if (optarg[0] == '-') {
3974                                 param.fp_comp_start_sign =  1;
3975                                 optarg++;
3976                         }
3977
3978                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
3979                                               &param.fp_comp_start_units, 0);
3980                         if (rc) {
3981                                 fprintf(stderr, "error: bad component start "
3982                                         "'%s'\n", optarg);
3983                                 goto err;
3984                         }
3985                         param.fp_check_comp_start = 1;
3986                         param.fp_exclude_comp_start = !!neg_opt;
3987                         break;
3988                 case LFS_MIRROR_STATE_OPT:
3989                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
3990                                               &param.fp_mirror_neg_state);
3991                         if (rc) {
3992                                 fprintf(stderr,
3993                                         "error: bad mirrored file state '%s'\n",
3994                                         optarg);
3995                                 goto err;
3996                         }
3997                         param.fp_check_mirror_state = 1;
3998                         if (neg_opt) {
3999                                 __u16 state = param.fp_mirror_neg_state;
4000                                 param.fp_mirror_neg_state =
4001                                         param.fp_mirror_state;
4002                                 param.fp_mirror_state = state;
4003                         }
4004                         break;
4005                 case 'c':
4006                         if (optarg[0] == '+') {
4007                                 param.fp_stripe_count_sign = -1;
4008                                 optarg++;
4009                         } else if (optarg[0] == '-') {
4010                                 param.fp_stripe_count_sign =  1;
4011                                 optarg++;
4012                         }
4013
4014                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
4015                         if (*endptr != '\0') {
4016                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
4017                                         optarg);
4018                                 ret = -1;
4019                                 goto err;
4020                         }
4021                         param.fp_check_stripe_count = 1;
4022                         param.fp_exclude_stripe_count = !!neg_opt;
4023                         break;
4024                 case 'D':
4025                         param.fp_max_depth = strtol(optarg, 0, 0);
4026                         break;
4027                 case 'E':
4028                         if (optarg[0] == '+') {
4029                                 param.fp_comp_end_sign = -1;
4030                                 optarg++;
4031                         } else if (optarg[0] == '-') {
4032                                 param.fp_comp_end_sign =  1;
4033                                 optarg++;
4034                         }
4035
4036                         if (arg_is_eof(optarg)) {
4037                                 param.fp_comp_end = LUSTRE_EOF;
4038                                 param.fp_comp_end_units = 1;
4039                                 rc = 0;
4040                         } else {
4041                                 rc = llapi_parse_size(optarg,
4042                                                 &param.fp_comp_end,
4043                                                 &param.fp_comp_end_units, 0);
4044                         }
4045                         if (rc) {
4046                                 fprintf(stderr, "error: bad component end "
4047                                         "'%s'\n", optarg);
4048                                 goto err;
4049                         }
4050                         param.fp_check_comp_end = 1;
4051                         param.fp_exclude_comp_end = !!neg_opt;
4052                         break;
4053                 case LFS_LAYOUT_FOREIGN_OPT: {
4054                         /* all types by default */
4055                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
4056
4057                         if (optarg != NULL) {
4058                                 /* check pure numeric */
4059                                 type = strtoul(optarg, &endptr, 0);
4060                                 if (*endptr) {
4061                                         /* check name */
4062                                         type = check_foreign_type_name(optarg);
4063                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
4064                                                 fprintf(stderr,
4065                                                         "%s %s: unknown foreign type '%s'\n",
4066                                                         progname, argv[0],
4067                                                         optarg);
4068                                                 return CMD_HELP;
4069                                         }
4070                                 }
4071                         }
4072                         param.fp_foreign_type = type;
4073                         param.fp_check_foreign = 1;
4074                         param.fp_exclude_foreign = !!neg_opt;
4075                         break;
4076                 }
4077                 case 'g':
4078                 case 'G':
4079                         rc = name2gid(&param.fp_gid, optarg);
4080                         if (rc) {
4081                                 param.fp_gid = strtoul(optarg, &endptr, 10);
4082                                 if (*endptr != '\0') {
4083                                         fprintf(stderr, "Group/GID: %s cannot "
4084                                                 "be found.\n", optarg);
4085                                         ret = -1;
4086                                         goto err;
4087                                 }
4088                         }
4089                         param.fp_exclude_gid = !!neg_opt;
4090                         param.fp_check_gid = 1;
4091                         break;
4092                 case 'H':
4093                         param.fp_hash_type = check_hashtype(optarg);
4094                         if (param.fp_hash_type == 0) {
4095                                 fprintf(stderr, "error: bad hash_type '%s'\n",
4096                                         optarg);
4097                                 ret = -1;
4098                                 goto err;
4099                         }
4100                         param.fp_check_hash_type = 1;
4101                         param.fp_exclude_hash_type = !!neg_opt;
4102                         break;
4103                 case 'L':
4104                         ret = name2layout(&param.fp_layout, optarg);
4105                         if (ret)
4106                                 goto err;
4107                         param.fp_exclude_layout = !!neg_opt;
4108                         param.fp_check_layout = 1;
4109                         break;
4110                 case 'u':
4111                 case 'U':
4112                         rc = name2uid(&param.fp_uid, optarg);
4113                         if (rc) {
4114                                 param.fp_uid = strtoul(optarg, &endptr, 10);
4115                                 if (*endptr != '\0') {
4116                                         fprintf(stderr, "User/UID: %s cannot "
4117                                                 "be found.\n", optarg);
4118                                         ret = -1;
4119                                         goto err;
4120                                 }
4121                         }
4122                         param.fp_exclude_uid = !!neg_opt;
4123                         param.fp_check_uid = 1;
4124                         break;
4125                 case 'n':
4126                         param.fp_pattern = (char *)optarg;
4127                         param.fp_exclude_pattern = !!neg_opt;
4128                         break;
4129                 case 'N':
4130                         if (optarg[0] == '+') {
4131                                 param.fp_mirror_count_sign = -1;
4132                                 optarg++;
4133                         } else if (optarg[0] == '-') {
4134                                 param.fp_mirror_count_sign =  1;
4135                                 optarg++;
4136                         }
4137
4138                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
4139                         if (*endptr != '\0') {
4140                                 fprintf(stderr,
4141                                         "error: bad mirror count '%s'\n",
4142                                         optarg);
4143                                 goto err;
4144                         }
4145                         param.fp_check_mirror_count = 1;
4146                         param.fp_exclude_mirror_count = !!neg_opt;
4147                         break;
4148                 case 'm':
4149                 case 'i':
4150                 case 'O': {
4151                         char *buf, *token, *next, *p;
4152                         int len = 1;
4153                         void *tmp;
4154
4155                         buf = strdup(optarg);
4156                         if (buf == NULL) {
4157                                 ret = -ENOMEM;
4158                                 goto err;
4159                         }
4160
4161                         param.fp_exclude_obd = !!neg_opt;
4162
4163                         token = buf;
4164                         while (token && *token) {
4165                                 token = strchr(token, ',');
4166                                 if (token) {
4167                                         len++;
4168                                         token++;
4169                                 }
4170                         }
4171                         if (c == 'm') {
4172                                 param.fp_exclude_mdt = !!neg_opt;
4173                                 param.fp_num_alloc_mdts += len;
4174                                 tmp = realloc(param.fp_mdt_uuid,
4175                                               param.fp_num_alloc_mdts *
4176                                               sizeof(*param.fp_mdt_uuid));
4177                                 if (tmp == NULL) {
4178                                         ret = -ENOMEM;
4179                                         goto err_free;
4180                                 }
4181
4182                                 param.fp_mdt_uuid = tmp;
4183                         } else {
4184                                 param.fp_exclude_obd = !!neg_opt;
4185                                 param.fp_num_alloc_obds += len;
4186                                 tmp = realloc(param.fp_obd_uuid,
4187                                               param.fp_num_alloc_obds *
4188                                               sizeof(*param.fp_obd_uuid));
4189                                 if (tmp == NULL) {
4190                                         ret = -ENOMEM;
4191                                         goto err_free;
4192                                 }
4193
4194                                 param.fp_obd_uuid = tmp;
4195                         }
4196                         for (token = buf; token && *token; token = next) {
4197                                 struct obd_uuid *puuid;
4198                                 if (c == 'm') {
4199                                         puuid =
4200                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
4201                                 } else {
4202                                         puuid =
4203                                         &param.fp_obd_uuid[param.fp_num_obds++];
4204                                 }
4205                                 p = strchr(token, ',');
4206                                 next = 0;
4207                                 if (p) {
4208                                         *p = 0;
4209                                         next = p+1;
4210                                 }
4211
4212                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
4213                                         ret = -E2BIG;
4214                                         goto err_free;
4215                                 }
4216
4217                                 strncpy(puuid->uuid, token,
4218                                         sizeof(puuid->uuid));
4219                         }
4220 err_free:
4221                         if (buf)
4222                                 free(buf);
4223                         break;
4224                 }
4225 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
4226                 case 'p':
4227 #endif
4228                 case LFS_POOL_OPT:
4229                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
4230                                 fprintf(stderr,
4231                                         "Pool name %s is too long (max %d)\n",
4232                                         optarg, LOV_MAXPOOLNAME);
4233                                 ret = -1;
4234                                 goto err;
4235                         }
4236                         /*
4237                          * We do check for empty pool because empty pool
4238                          * is used to find V1 LOV attributes
4239                          */
4240                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
4241                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
4242                         param.fp_exclude_pool = !!neg_opt;
4243                         param.fp_check_pool = 1;
4244                         break;
4245 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
4246                 case 'p': /* want this for --pool, to match getstripe/find */
4247                         fprintf(stderr,
4248                                 "warning: -p deprecated, use --print0 or -0\n");
4249 #endif
4250                 case '0':
4251                         param.fp_zero_end = 1;
4252                         break;
4253                 case 'P': /* we always print, this option is a no-op */
4254                         break;
4255                 case LFS_PROJID_OPT:
4256                         rc = name2projid(&param.fp_projid, optarg);
4257                         if (rc) {
4258                                 param.fp_projid = strtoul(optarg, &endptr, 10);
4259                                 if (*endptr != '\0') {
4260                                         fprintf(stderr,
4261                                                 "Invalid project ID: %s",
4262                                                 optarg);
4263                                         ret = -1;
4264                                         goto err;
4265                                 }
4266                         }
4267                         param.fp_exclude_projid = !!neg_opt;
4268                         param.fp_check_projid = 1;
4269                         break;
4270                 case 's':
4271                         if (optarg[0] == '+') {
4272                                 param.fp_size_sign = -1;
4273                                 optarg++;
4274                         } else if (optarg[0] == '-') {
4275                                 param.fp_size_sign =  1;
4276                                 optarg++;
4277                         }
4278
4279                         ret = llapi_parse_size(optarg, &param.fp_size,
4280                                                &param.fp_size_units, 0);
4281                         if (ret) {
4282                                 fprintf(stderr, "error: bad file size '%s'\n",
4283                                         optarg);
4284                                 goto err;
4285                         }
4286                         param.fp_check_size = 1;
4287                         param.fp_exclude_size = !!neg_opt;
4288                         break;
4289                 case 'S':
4290                         if (optarg[0] == '+') {
4291                                 param.fp_stripe_size_sign = -1;
4292                                 optarg++;
4293                         } else if (optarg[0] == '-') {
4294                                 param.fp_stripe_size_sign =  1;
4295                                 optarg++;
4296                         }
4297
4298                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
4299                                                &param.fp_stripe_size_units, 0);
4300                         if (ret) {
4301                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
4302                                         optarg);
4303                                 goto err;
4304                         }
4305                         param.fp_check_stripe_size = 1;
4306                         param.fp_exclude_stripe_size = !!neg_opt;
4307                         break;
4308                 case 't':
4309                         param.fp_exclude_type = !!neg_opt;
4310                         switch (optarg[0]) {
4311                         case 'b':
4312                                 param.fp_type = S_IFBLK;
4313                                 break;
4314                         case 'c':
4315                                 param.fp_type = S_IFCHR;
4316                                 break;
4317                         case 'd':
4318                                 param.fp_type = S_IFDIR;
4319                                 break;
4320                         case 'f':
4321                                 param.fp_type = S_IFREG;
4322                                 break;
4323                         case 'l':
4324                                 param.fp_type = S_IFLNK;
4325                                 break;
4326                         case 'p':
4327                                 param.fp_type = S_IFIFO;
4328                                 break;
4329                         case 's':
4330                                 param.fp_type = S_IFSOCK;
4331                                 break;
4332                         default:
4333                                 fprintf(stderr, "error: %s: bad type '%s'\n",
4334                                         argv[0], optarg);
4335                                 ret = CMD_HELP;
4336                                 goto err;
4337                         };
4338                         break;
4339                 case 'T':
4340                         if (optarg[0] == '+') {
4341                                 param.fp_mdt_count_sign = -1;
4342                                 optarg++;
4343                         } else if (optarg[0] == '-') {
4344                                 param.fp_mdt_count_sign =  1;
4345                                 optarg++;
4346                         }
4347
4348                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
4349                         if (*endptr != '\0') {
4350                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
4351                                         optarg);
4352                                 ret = -1;
4353                                 goto err;
4354                         }
4355                         param.fp_check_mdt_count = 1;
4356                         param.fp_exclude_mdt_count = !!neg_opt;
4357                         break;
4358                 default:
4359                         ret = CMD_HELP;
4360                         goto err;
4361                 };
4362         }
4363
4364         if (pathstart == -1) {
4365                 fprintf(stderr, "error: %s: no filename|pathname\n",
4366                         argv[0]);
4367                 ret = CMD_HELP;
4368                 goto err;
4369         } else if (pathend == -1) {
4370                 /* no options */
4371                 pathend = argc;
4372         }
4373
4374         do {
4375                 rc = llapi_find(argv[pathstart], &param);
4376                 if (rc != 0 && ret == 0)
4377                         ret = rc;
4378         } while (++pathstart < pathend);
4379
4380         if (ret)
4381                 fprintf(stderr, "error: %s failed for %s.\n",
4382                         argv[0], argv[optind - 1]);
4383 err:
4384         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
4385                 free(param.fp_obd_uuid);
4386
4387         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
4388                 free(param.fp_mdt_uuid);
4389
4390         return ret;
4391 }
4392
4393 static int lfs_getstripe_internal(int argc, char **argv,
4394                                   struct find_param *param)
4395 {
4396         struct option long_opts[] = {
4397 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
4398 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
4399         { .val = LFS_COMP_COUNT_OPT,
4400                         .name = "comp-count",   .has_arg = no_argument },
4401         { .val = LFS_COMP_COUNT_OPT,
4402                 .name = "component-count",      .has_arg = no_argument },
4403         { .val = LFS_COMP_FLAGS_OPT,
4404                         .name = "comp-flags",   .has_arg = optional_argument },
4405         { .val = LFS_COMP_FLAGS_OPT,
4406                 .name = "component-flags",      .has_arg = optional_argument },
4407         { .val = LFS_COMP_START_OPT,
4408                         .name = "comp-start",   .has_arg = optional_argument },
4409         { .val = LFS_COMP_START_OPT,
4410                 .name = "component-start",      .has_arg = optional_argument },
4411         { .val = LFS_MIRROR_INDEX_OPT,
4412                 .name = "mirror-index",         .has_arg = required_argument },
4413         { .val = LFS_MIRROR_ID_OPT,
4414                 .name = "mirror-id",            .has_arg = required_argument },
4415         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
4416         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
4417 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
4418         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
4419         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4420         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
4421         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
4422         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
4423         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
4424 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
4425 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
4426         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
4427         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
4428         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
4429         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
4430         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
4431         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
4432         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4433         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
4434 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
4435 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
4436         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
4437         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4438         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4439         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
4440 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
4441         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
4442         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4443         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
4444         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
4445         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
4446 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
4447 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
4448 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
4449 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
4450         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4451         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4452         { .name = NULL } };
4453         int c, rc;
4454         int neg_opt = 0;
4455         int pathstart = -1, pathend = -1;
4456         int isoption;
4457         char *end, *tmp;
4458
4459         while ((c = getopt_long(argc, argv,
4460                         "-cdDE::FghiI::LmMNoO:pqrRsSvy",
4461                         long_opts, NULL)) != -1) {
4462                 if (neg_opt)
4463                         --neg_opt;
4464
4465                 /* '!' is part of option */
4466                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4467                 if (!isoption && pathend != -1) {
4468                         fprintf(stderr,
4469                                 "error: %s: filename|dirname must either precede options or follow options\n",
4470                                 argv[0]);
4471                         return CMD_HELP;
4472                 }
4473                 if (!isoption && pathstart == -1)
4474                         pathstart = optind - 1;
4475                 if (isoption && pathstart != -1 && pathend == -1)
4476                         pathend = optind - 2;
4477
4478                 switch (c) {
4479                 case 1:
4480                         /* unknown: opt is "!" */
4481                         if (strcmp(optarg, "!") == 0)
4482                                 neg_opt = 2;
4483                         break;
4484                 case 'c':
4485                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4486                                 param->fp_verbose |= VERBOSE_COUNT;
4487                                 param->fp_max_depth = 0;
4488                         }
4489                         break;
4490                 case LFS_COMP_COUNT_OPT:
4491                         param->fp_verbose |= VERBOSE_COMP_COUNT;
4492                         param->fp_max_depth = 0;
4493                         break;
4494                 case LFS_COMP_FLAGS_OPT:
4495                         if (optarg != NULL) {
4496                                 rc = comp_str2flags(optarg,
4497                                                     &param->fp_comp_flags,
4498                                                     &param->fp_comp_neg_flags);
4499                                 if (rc != 0) {
4500                                         fprintf(stderr, "error: %s bad "
4501                                                 "component flags '%s'.\n",
4502                                                 argv[0], optarg);
4503                                         return CMD_HELP;
4504                                 }
4505                                 param->fp_check_comp_flags = 1;
4506                         } else {
4507                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
4508                                 param->fp_max_depth = 0;
4509                         }
4510                         break;
4511                 case LFS_COMP_START_OPT:
4512                         if (optarg != NULL) {
4513                                 tmp = optarg;
4514                                 if (tmp[0] == '+') {
4515                                         param->fp_comp_start_sign = -1;
4516                                         tmp++;
4517                                 } else if (tmp[0] == '-') {
4518                                         param->fp_comp_start_sign = 1;
4519                                         tmp++;
4520                                 }
4521                                 rc = llapi_parse_size(tmp,
4522                                                 &param->fp_comp_start,
4523                                                 &param->fp_comp_start_units, 0);
4524                                 if (rc != 0) {
4525                                         fprintf(stderr, "error: %s bad "
4526                                                 "component start '%s'.\n",
4527                                                 argv[0], tmp);
4528                                         return CMD_HELP;
4529                                 } else {
4530                                         param->fp_check_comp_start = 1;
4531                                 }
4532                         } else {
4533                                 param->fp_verbose |= VERBOSE_COMP_START;
4534                                 param->fp_max_depth = 0;
4535                         }
4536                         break;
4537                 case LFS_MIRROR_INDEX_OPT:
4538                         if (optarg[0] == '+') {
4539                                 param->fp_mirror_index_sign = -1;
4540                                 optarg++;
4541                         } else if (optarg[0] == '-') {
4542                                 param->fp_mirror_index_sign = 1;
4543                                 optarg++;
4544                         }
4545
4546                         param->fp_mirror_index = strtoul(optarg, &end, 0);
4547                         if (*end != '\0' || (param->fp_mirror_index == 0 &&
4548                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
4549                                 fprintf(stderr,
4550                                         "%s %s: invalid mirror index '%s'\n",
4551                                         progname, argv[0], optarg);
4552                                 return CMD_HELP;
4553                         }
4554                         if (param->fp_mirror_id != 0) {
4555                                 fprintf(stderr,
4556                                         "%s %s: can't specify both mirror index and mirror ID\n",
4557                                         progname, argv[0]);
4558                                 return CMD_HELP;
4559                         }
4560                         param->fp_check_mirror_index = 1;
4561                         param->fp_exclude_mirror_index = !!neg_opt;
4562                         break;
4563                 case LFS_MIRROR_ID_OPT:
4564                         if (optarg[0] == '+') {
4565                                 param->fp_mirror_id_sign = -1;
4566                                 optarg++;
4567                         } else if (optarg[0] == '-') {
4568                                 param->fp_mirror_id_sign = 1;
4569                                 optarg++;
4570                         }
4571
4572                         param->fp_mirror_id = strtoul(optarg, &end, 0);
4573                         if (*end != '\0' || (param->fp_mirror_id == 0 &&
4574                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
4575                                 fprintf(stderr,
4576                                         "%s %s: invalid mirror ID '%s'\n",
4577                                         progname, argv[0], optarg);
4578                                 return CMD_HELP;
4579                         }
4580                         if (param->fp_mirror_index != 0) {
4581                                 fprintf(stderr,
4582                                         "%s %s: can't specify both mirror index and mirror ID\n",
4583                                         progname, argv[0]);
4584                                 return CMD_HELP;
4585                         }
4586                         param->fp_check_mirror_id = 1;
4587                         param->fp_exclude_mirror_id = !!neg_opt;
4588                         break;
4589                 case 'd':
4590                         param->fp_max_depth = 0;
4591                         break;
4592                 case 'D':
4593                         param->fp_get_default_lmv = 1;
4594                         break;
4595                 case 'E':
4596                         if (optarg != NULL) {
4597                                 tmp = optarg;
4598                                 if (tmp[0] == '+') {
4599                                         param->fp_comp_end_sign = -1;
4600                                         tmp++;
4601                                 } else if (tmp[0] == '-') {
4602                                         param->fp_comp_end_sign = 1;
4603                                         tmp++;
4604                                 }
4605
4606                                 if (arg_is_eof(tmp)) {
4607                                         param->fp_comp_end = LUSTRE_EOF;
4608                                         param->fp_comp_end_units = 1;
4609                                         rc = 0;
4610                                 } else {
4611                                         rc = llapi_parse_size(tmp,
4612                                                 &param->fp_comp_end,
4613                                                 &param->fp_comp_end_units, 0);
4614                                 }
4615                                 if (rc != 0) {
4616                                         fprintf(stderr, "error: %s bad "
4617                                                 "component end '%s'.\n",
4618                                                 argv[0], tmp);
4619                                         return CMD_HELP;
4620                                 }
4621                                 param->fp_check_comp_end = 1;
4622                         } else {
4623                                 param->fp_verbose |= VERBOSE_COMP_END;
4624                                 param->fp_max_depth = 0;
4625                         }
4626                         break;
4627                 case 'F':
4628                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4629                                 param->fp_verbose |= VERBOSE_DFID;
4630                                 param->fp_max_depth = 0;
4631                         }
4632                         break;
4633                 case 'g':
4634                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4635                                 param->fp_verbose |= VERBOSE_GENERATION;
4636                                 param->fp_max_depth = 0;
4637                         }
4638                         break;
4639                 case 'i':
4640                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4641                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
4642                                 param->fp_max_depth = 0;
4643                         }
4644                         break;
4645                 case 'I':
4646                         if (optarg != NULL) {
4647                                 param->fp_comp_id = strtoul(optarg, &end, 0);
4648                                 if (*end != '\0' || param->fp_comp_id == 0 ||
4649                                     param->fp_comp_id > LCME_ID_MAX) {
4650                                         fprintf(stderr, "error: %s bad "
4651                                                 "component id '%s'\n",
4652                                                 argv[0], optarg);
4653                                         return CMD_HELP;
4654                                 } else {
4655                                         param->fp_check_comp_id = 1;
4656                                 }
4657                         } else {
4658                                 param->fp_max_depth = 0;
4659                                 param->fp_verbose |= VERBOSE_COMP_ID;
4660                         }
4661                         break;
4662                 case 'L':
4663                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4664                                 param->fp_verbose |= VERBOSE_PATTERN;
4665                                 param->fp_max_depth = 0;
4666                         }
4667                         break;
4668 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4669                 case 'M':
4670                         fprintf(stderr, "warning: '-M' deprecated"
4671                                 ", use '--mdt-index' or '-m' instead\n");
4672 #endif
4673                 case 'm':
4674                         if (!(param->fp_verbose & VERBOSE_DETAIL))
4675                                 param->fp_max_depth = 0;
4676                         param->fp_verbose |= VERBOSE_MDTINDEX;
4677                         break;
4678                 case 'N':
4679                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4680                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
4681                                 param->fp_max_depth = 0;
4682                         }
4683                         break;
4684                 case 'O':
4685                         if (param->fp_obd_uuid) {
4686                                 fprintf(stderr,
4687                                         "error: %s: only one obduuid allowed",
4688                                         argv[0]);
4689                                 return CMD_HELP;
4690                         }
4691                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
4692                         break;
4693                 case 'p':
4694                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4695                                 param->fp_verbose |= VERBOSE_POOL;
4696                                 param->fp_max_depth = 0;
4697                         }
4698                         break;
4699                 case 'q':
4700                         param->fp_quiet++;
4701                         break;
4702                 case 'r':
4703                         param->fp_recursive = 1;
4704                         break;
4705                 case 'R':
4706                         param->fp_raw = 1;
4707                         break;
4708                 case 'S':
4709                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4710                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
4711                                 param->fp_max_depth = 0;
4712                         }
4713                         break;
4714                 case 'v':
4715                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
4716                         break;
4717                 case 'y':
4718                         param->fp_yaml = 1;
4719                         break;
4720                 default:
4721                         return CMD_HELP;
4722                 }
4723         }
4724
4725         if (pathstart == -1) {
4726                 fprintf(stderr, "error: %s: no filename|pathname\n",
4727                                 argv[0]);
4728                 return CMD_HELP;
4729         } else if (pathend == -1) {
4730                 /* no options */
4731                 pathend = argc;
4732         }
4733
4734         if (pathend > argc)
4735                 return CMD_HELP;
4736
4737         if (param->fp_recursive)
4738                 param->fp_max_depth = -1;
4739         else if (param->fp_verbose & VERBOSE_DETAIL)
4740                 param->fp_max_depth = 1;
4741
4742         if (!param->fp_verbose)
4743                 param->fp_verbose = VERBOSE_DEFAULT;
4744         if (param->fp_quiet)
4745                 param->fp_verbose = VERBOSE_OBJID;
4746
4747         do {
4748                 rc = llapi_getstripe(argv[pathstart], param);
4749         } while (++pathstart < pathend && !rc);
4750
4751         if (rc)
4752                 fprintf(stderr, "error: %s failed for %s.\n",
4753                         argv[0], argv[optind - 1]);
4754         return rc;
4755 }
4756
4757 static int lfs_tgts(int argc, char **argv)
4758 {
4759         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
4760         struct find_param param;
4761         int index = 0, rc=0;
4762
4763         if (argc > 2)
4764                 return CMD_HELP;
4765
4766         if (argc == 2 && !realpath(argv[1], path)) {
4767                 rc = -errno;
4768                 fprintf(stderr, "error: invalid path '%s': %s\n",
4769                         argv[1], strerror(-rc));
4770                 return rc;
4771         }
4772
4773         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
4774                 /* Check if we have a mount point */
4775                 if (mntdir[0] == '\0')
4776                         continue;
4777
4778                 memset(&param, 0, sizeof(param));
4779                 if (!strcmp(argv[0], "mdts"))
4780                         param.fp_get_lmv = 1;
4781
4782                 rc = llapi_ostlist(mntdir, &param);
4783                 if (rc) {
4784                         fprintf(stderr, "error: %s: failed on %s\n",
4785                                 argv[0], mntdir);
4786                 }
4787                 if (path[0] != '\0')
4788                         break;
4789                 memset(mntdir, 0, PATH_MAX);
4790         }
4791
4792         return rc;
4793 }
4794
4795 static int lfs_getstripe(int argc, char **argv)
4796 {
4797         struct find_param param = { 0 };
4798
4799         param.fp_max_depth = 1;
4800         return lfs_getstripe_internal(argc, argv, &param);
4801 }
4802
4803 /* functions */
4804 static int lfs_getdirstripe(int argc, char **argv)
4805 {
4806         struct find_param param = { 0 };
4807         struct option long_opts[] = {
4808         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
4809         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4810         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
4811         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
4812         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4813         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4814         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4815         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
4816         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4817         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4818         { .name = NULL } };
4819         int c, rc;
4820
4821         param.fp_get_lmv = 1;
4822
4823         while ((c = getopt_long(argc, argv,
4824                                 "cDHimO:rtTvy", long_opts, NULL)) != -1)
4825         {
4826                 switch (c) {
4827                 case 'c':
4828                 case 'T':
4829                         param.fp_verbose |= VERBOSE_COUNT;
4830                         break;
4831                 case 'D':
4832                         param.fp_get_default_lmv = 1;
4833                         break;
4834                 case 'i':
4835                 case 'm':
4836                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
4837                         break;
4838 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4839                 case 't':
4840                         fprintf(stderr, "warning: '-t' deprecated, "
4841                                 "use '--mdt-hash' or '-H' instead\n");
4842 #endif
4843                 case 'H':
4844                         param.fp_verbose |= VERBOSE_HASH_TYPE;
4845                         break;
4846                 case 'O':
4847                         if (param.fp_obd_uuid) {
4848                                 fprintf(stderr,
4849                                         "error: %s: only one obduuid allowed",
4850                                         argv[0]);
4851                                 return CMD_HELP;
4852                         }
4853                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
4854                         break;
4855                 case 'r':
4856                         param.fp_recursive = 1;
4857                         break;
4858                 case 'v':
4859                         param.fp_verbose |= VERBOSE_DETAIL;
4860                         break;
4861                 case 'y':
4862                         param.fp_yaml = 1;
4863                         break;
4864                 default:
4865                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
4866                                 progname, argv[0], argv[optind - 1]);
4867                         return CMD_HELP;
4868                 }
4869         }
4870
4871         if (optind >= argc)
4872                 return CMD_HELP;
4873
4874         if (param.fp_recursive)
4875                 param.fp_max_depth = -1;
4876
4877         if (!param.fp_verbose)
4878                 param.fp_verbose = VERBOSE_DEFAULT;
4879
4880         do {
4881                 rc = llapi_getstripe(argv[optind], &param);
4882         } while (++optind < argc && !rc);
4883
4884         if (rc)
4885                 fprintf(stderr, "error: %s failed for %s.\n",
4886                         argv[0], argv[optind - 1]);
4887         return rc;
4888 }
4889
4890 enum mntdf_flags {
4891         MNTDF_INODES    = 0x0001,
4892         MNTDF_COOKED    = 0x0002,
4893         MNTDF_LAZY      = 0x0004,
4894         MNTDF_VERBOSE   = 0x0008,
4895         MNTDF_SHOW      = 0x0010,
4896 };
4897
4898 #define COOK(value)                                             \
4899 ({                                                              \
4900         int radix = 0;                                          \
4901         while (value > 1024) {                                  \
4902                 value /= 1024;                                  \
4903                 radix++;                                        \
4904         }                                                       \
4905         radix;                                                  \
4906 })
4907 #define UUF     "%-20s"
4908 #define CSF     "%11s"
4909 #define CDF     "%11llu"
4910 #define HDF     "%8.1f%c"
4911 #define RSF     "%4s"
4912 #define RDF     "%3d%%"
4913
4914 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
4915 {
4916         double avail, used, ratio = 0;
4917
4918         if (inodes) {
4919                 avail = st->os_ffree;
4920                 used = st->os_files - st->os_ffree;
4921         } else {
4922                 avail = st->os_bavail;
4923                 used = st->os_blocks - st->os_bfree;
4924         }
4925         if (avail + used > 0)
4926                 ratio = used / (used + avail) * 100;
4927
4928         /* Round up to match df(1) usage percentage */
4929         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
4930 }
4931
4932 /* This is only used to reflect various problem states for lfs df, so we only
4933  * translate the flags reflecting those states.
4934  */
4935 static char obd_statfs_state_names[] = {
4936         [OS_STATE_DEGRADED]     = 'D',
4937         [OS_STATE_READONLY]     = 'R',
4938         [OS_STATE_NOPRECREATE]  = 'N',
4939         [OS_STATE_ENOSPC]       = 'S',
4940         [OS_STATE_ENOINO]       = 'I',
4941 };
4942
4943 static char obd_statfs_state2char(int s)
4944 {
4945         /* Not an error state, do not print here  */
4946         if (s == OS_STATE_NONROT)
4947                 return '\0';
4948         /* Unknown name */
4949         if (s > ARRAY_SIZE(obd_statfs_state_names)/sizeof(char) ||
4950             obd_statfs_state_names[s] == 0)
4951                 return '?';
4952
4953         return obd_statfs_state_names[s];
4954 }
4955
4956 static int showdf(char *mntdir, struct obd_statfs *stat,
4957                   char *uuid, enum mntdf_flags flags,
4958                   char *type, int index, int rc)
4959 {
4960         long long avail, used, total;
4961         int ratio = 0;
4962         char *suffix = "KMGTPEZY";
4963         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
4964         char tbuf[3 * sizeof(__u64)];
4965         char ubuf[3 * sizeof(__u64)];
4966         char abuf[3 * sizeof(__u64)];
4967         char rbuf[3 * sizeof(__u64)];
4968
4969         if (!uuid || !stat)
4970                 return -EINVAL;
4971
4972         switch (rc) {
4973         case 0:
4974                 if (flags & MNTDF_INODES) {
4975                         avail = stat->os_ffree;
4976                         used = stat->os_files - stat->os_ffree;
4977                         total = stat->os_files;
4978                 } else {
4979                         int shift = flags & MNTDF_COOKED ? 0 : 10;
4980
4981                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
4982                         used  = ((stat->os_blocks - stat->os_bfree) *
4983                                  stat->os_bsize) >> shift;
4984                         total = (stat->os_blocks * stat->os_bsize) >> shift;
4985                 }
4986
4987                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
4988
4989                 if (flags & MNTDF_COOKED) {
4990                         int i;
4991                         double cook_val;
4992
4993                         cook_val = (double)total;
4994                         i = COOK(cook_val);
4995                         if (i > 0)
4996                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
4997                                          suffix[i - 1]);
4998                         else
4999                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
5000
5001                         cook_val = (double)used;
5002                         i = COOK(cook_val);
5003                         if (i > 0)
5004                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
5005                                          suffix[i - 1]);
5006                         else
5007                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
5008
5009                         cook_val = (double)avail;
5010                         i = COOK(cook_val);
5011                         if (i > 0)
5012                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
5013                                          suffix[i - 1]);
5014                         else
5015                                 snprintf(abuf, sizeof(abuf), CDF, avail);
5016                 } else {
5017                         snprintf(tbuf, sizeof(tbuf), CDF, total);
5018                         snprintf(ubuf, sizeof(tbuf), CDF, used);
5019                         snprintf(abuf, sizeof(tbuf), CDF, avail);
5020                 }
5021
5022                 sprintf(rbuf, RDF, ratio);
5023                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
5024                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
5025                 if (type)
5026                         printf("[%s:%d]", type, index);
5027
5028                 if (stat->os_state) {
5029                         uint32_t state;
5030                         uint32_t i;
5031
5032                         printf(" ");
5033                         for (i = 0, state = stat->os_state; state != 0; i++) {
5034                                 uint32_t mask = 1 << i;
5035                                 if (!(state & mask))
5036                                         continue;
5037                                 printf("%c", obd_statfs_state2char(mask));
5038                                 state &= ~mask;
5039                         }
5040                 }
5041
5042                 printf("\n");
5043                 break;
5044         case -ENODATA:
5045                 printf(UUF": inactive device\n", uuid);
5046                 break;
5047         default:
5048                 printf(UUF": %s\n", uuid, strerror(-rc));
5049                 break;
5050         }
5051
5052         return 0;
5053 }
5054
5055 struct ll_stat_type {
5056         int   st_op;
5057         char *st_name;
5058 };
5059
5060 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
5061
5062 struct ll_statfs_data {
5063         int                     sd_index;
5064         struct obd_statfs       sd_st;
5065 };
5066
5067 struct ll_statfs_buf {
5068         int                     sb_count;
5069         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
5070 };
5071
5072 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
5073                  int ops, struct ll_statfs_buf *lsb)
5074 {
5075         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
5076         struct obd_uuid uuid_buf;
5077         char *poolname = NULL;
5078         struct ll_stat_type types[] = {
5079                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
5080                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
5081                 { .st_name = NULL } };
5082         struct ll_stat_type *tp;
5083         __u64 ost_files = 0;
5084         __u64 ost_ffree = 0;
5085         __u32 index;
5086         __u32 type;
5087         int fd;
5088         int rc = 0;
5089         int rc2;
5090
5091         if (pool) {
5092                 poolname = strchr(pool, '.');
5093                 if (poolname != NULL) {
5094                         if (strncmp(fsname, pool, strlen(fsname))) {
5095                                 fprintf(stderr, "filesystem name incorrect\n");
5096                                 return -ENODEV;
5097                         }
5098                         poolname++;
5099                 } else
5100                         poolname = pool;
5101         }
5102
5103         fd = open(mntdir, O_RDONLY);
5104         if (fd < 0) {
5105                 rc = -errno;
5106                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
5107                         strerror(errno));
5108                 return rc;
5109         }
5110
5111         if (flags & MNTDF_SHOW) {
5112                 if (flags & MNTDF_INODES)
5113                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5114                                "UUID", "Inodes", "IUsed", "IFree",
5115                                "IUse%", "Mounted on");
5116                 else
5117                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5118                                "UUID",
5119                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
5120                                "Used", "Available", "Use%", "Mounted on");
5121         }
5122
5123         for (tp = types; tp->st_name != NULL; tp++) {
5124                 bool have_ost = false;
5125
5126                 if (!(tp->st_op & ops))
5127                         continue;
5128
5129                 for (index = 0; ; index++) {
5130                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
5131                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
5132                         type = flags & MNTDF_LAZY ?
5133                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
5134                         rc2 = llapi_obd_fstatfs(fd, type, index,
5135                                                &stat_buf, &uuid_buf);
5136                         if (rc2 == -ENODEV)
5137                                 break;
5138                         if (rc2 == -EAGAIN)
5139                                 continue;
5140                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
5141                                 if (!(flags & MNTDF_VERBOSE))
5142                                         continue;
5143                         } else if (rc2 < 0 && rc == 0) {
5144                                 rc = rc2;
5145                         }
5146
5147                         /* If we have OSTs then don't report MDT block counts.
5148                          * For MDT-only filesystems the expectation is that all
5149                          * layouts have a DoM component.  For filesystems with
5150                          * OSTs, files are not necessarily going to store data
5151                          * on MDTs, and MDT space is limited to a fraction of
5152                          * OST space, so don't include it in the summary.
5153                          */
5154                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
5155                                 have_ost = true;
5156                                 sum.os_blocks = 0;
5157                                 sum.os_bfree = 0;
5158                                 sum.os_bavail = 0;
5159                         }
5160
5161                         if (poolname && tp->st_op == LL_STATFS_LOV &&
5162                             llapi_search_ost(fsname, poolname,
5163                                              obd_uuid2str(&uuid_buf)) != 1)
5164                                 continue;
5165
5166                         /* the llapi_obd_statfs() call may have returned with
5167                          * an error, but if it filled in uuid_buf we will at
5168                          * lease use that to print out a message for that OBD.
5169                          * If we didn't get anything in the uuid_buf, then fill
5170                          * it in so that we can print an error message. */
5171                         if (uuid_buf.uuid[0] == '\0')
5172                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
5173                                          "%s%04x", tp->st_name, index);
5174                         if (!rc && lsb) {
5175                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
5176                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
5177                                 lsb->sb_count++;
5178                         }
5179                         if (flags & MNTDF_SHOW)
5180                                 showdf(mntdir, &stat_buf,
5181                                        obd_uuid2str(&uuid_buf), flags,
5182                                        tp->st_name, index, rc2);
5183
5184                         if (rc2)
5185                                 continue;
5186
5187                         if (tp->st_op == LL_STATFS_LMV) {
5188                                 sum.os_ffree += stat_buf.os_ffree;
5189                                 sum.os_files += stat_buf.os_files;
5190                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
5191                                 ost_files += stat_buf.os_files;
5192                                 ost_ffree += stat_buf.os_ffree;
5193                         }
5194                         sum.os_blocks += stat_buf.os_blocks *
5195                                          stat_buf.os_bsize;
5196                         sum.os_bfree  += stat_buf.os_bfree *
5197                                          stat_buf.os_bsize;
5198                         sum.os_bavail += stat_buf.os_bavail *
5199                                          stat_buf.os_bsize;
5200                 }
5201         }
5202
5203         close(fd);
5204
5205         /* If we have _some_ OSTs, but don't have as many free objects on the
5206          * OST as inodes on the MDTs, reduce the reported number of inodes
5207          * to compensate, so that the "inodes in use" number is correct.
5208          * This should be kept in sync with ll_statfs_internal().
5209          */
5210         if (ost_files && ost_ffree < sum.os_ffree) {
5211                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
5212                 sum.os_ffree = ost_ffree;
5213         }
5214         if (flags & MNTDF_SHOW) {
5215                 printf("\n");
5216                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
5217                 printf("\n");
5218         }
5219
5220         return rc;
5221 }
5222
5223 static int ll_statfs_data_comp(const void *sd1, const void *sd2)
5224 {
5225         const struct obd_statfs *st1 = &((const struct ll_statfs_data *)sd1)->
5226                                                 sd_st;
5227         const struct obd_statfs *st2 = &((const struct ll_statfs_data *)sd2)->
5228                                                 sd_st;
5229         int r1 = obd_statfs_ratio(st1, false);
5230         int r2 = obd_statfs_ratio(st2, false);
5231         int64_t result = r1 - r2;
5232
5233         /* if both space usage are above 90, compare free inodes */
5234         if (r1 > 90 && r2 > 90)
5235                 result = st2->os_ffree - st1->os_ffree;
5236
5237         if (result < 0)
5238                 return -1;
5239         else if (result == 0)
5240                 return 0;
5241         else
5242                 return 1;
5243 }
5244
5245 /* functions */
5246 static int lfs_setdirstripe(int argc, char **argv)
5247 {
5248         char *dname;
5249         struct lfs_setstripe_args lsa = { 0 };
5250         struct llapi_stripe_param *param = NULL;
5251         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
5252         char *end;
5253         int c;
5254         char *mode_opt = NULL;
5255         bool default_stripe = false;
5256         bool delete = false;
5257         bool auto_distributed = false;
5258         bool foreign_mode = false;
5259         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
5260         mode_t previous_mode = 0;
5261         struct ll_statfs_buf *lsb = NULL;
5262         char mntdir[PATH_MAX] = "";
5263         char *xattr = NULL;
5264         __u32 type = LU_FOREIGN_TYPE_DAOS, flags = 0;
5265         struct option long_opts[] = {
5266         { .val = 'c',   .name = "count",        .has_arg = required_argument },
5267         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
5268         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
5269         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5270         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
5271         { .val = LFS_LAYOUT_FLAGS_OPT,
5272                         .name = "flags",        .has_arg = required_argument },
5273         { .val = LFS_LAYOUT_FOREIGN_OPT,
5274                         .name = "foreign",      .has_arg = optional_argument},
5275         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
5276 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
5277         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
5278         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
5279 #else
5280         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5281         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5282 #endif
5283 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5284         { .val = 'i',   .name = "index",        .has_arg = required_argument },
5285 #endif
5286         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
5287 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5288         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
5289 #endif
5290         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
5291 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
5292         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
5293         { .name = NULL } };
5294         int result = 0;
5295
5296         setstripe_args_init(&lsa);
5297
5298         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:x:",
5299                                 long_opts, NULL)) >= 0) {
5300                 switch (c) {
5301                 case 0:
5302                         /* Long options. */
5303                         break;
5304                 case 'c':
5305                 case 'T':
5306                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
5307                         if (*end != '\0') {
5308                                 fprintf(stderr,
5309                                         "%s %s: invalid stripe count '%s'\n",
5310                                         progname, argv[0], optarg);
5311                                 return CMD_HELP;
5312                         }
5313                         break;
5314                 case 'd':
5315                         delete = true;
5316                         default_stripe = true;
5317                         break;
5318                 case 'D':
5319                         default_stripe = true;
5320                         break;
5321                 case LFS_LAYOUT_FOREIGN_OPT:
5322                         if (optarg != NULL) {
5323                                 /* check pure numeric */
5324                                 type = strtoul(optarg, &end, 0);
5325                                 if (*end) {
5326                                         /* check name */
5327                                         type = check_foreign_type_name(optarg);
5328                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5329                                                 fprintf(stderr,
5330                                                         "%s %s: unknown foreign type '%s'\n",
5331                                                         progname, argv[0],
5332                                                         optarg);
5333                                                 return CMD_HELP;
5334                                         }
5335                                 }
5336                         }
5337                         foreign_mode = true;
5338                         break;
5339                 case LFS_LAYOUT_FLAGS_OPT:
5340                         flags = strtoul(optarg, &end, 16);
5341                         if (*end != '\0') {
5342                                 fprintf(stderr,
5343                                         "%s %s: bad flags '%s'\n",
5344                                         progname, argv[0], optarg);
5345                                 return CMD_HELP;
5346                         }
5347                         break;
5348 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5349                 case 't':
5350                         fprintf(stderr, "warning: '--hash-type' and '-t' "
5351                               "deprecated, use '--mdt-hash' or '-H' instead\n");
5352 #endif
5353                 case 'H':
5354                         lsa.lsa_pattern = check_hashtype(optarg);
5355                         if (lsa.lsa_pattern == 0) {
5356                                 fprintf(stderr,
5357                                         "%s %s: bad stripe hash type '%s'\n",
5358                                         progname, argv[0], optarg);
5359                                 return CMD_HELP;
5360                         }
5361                         break;
5362                 case 'i':
5363 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
5364                 case 'm':
5365 #endif
5366 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5367                         if (strcmp(argv[optind - 1], "--index") == 0)
5368                                 fprintf(stderr,
5369                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
5370                                         progname, argv[0]);
5371 #endif
5372                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
5373                         lsa.lsa_nr_tgts = parse_targets(mdts,
5374                                                 sizeof(mdts) / sizeof(__u32),
5375                                                 lsa.lsa_nr_tgts, optarg, NULL);
5376                         if (lsa.lsa_nr_tgts < 0) {
5377                                 fprintf(stderr,
5378                                         "%s %s: invalid MDT target(s) '%s'\n",
5379                                         progname, argv[0], optarg);
5380                                 return CMD_HELP;
5381                         }
5382                         lsa.lsa_pattern = 0;
5383
5384                         lsa.lsa_tgts = mdts;
5385                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5386                                 lsa.lsa_stripe_off = mdts[0];
5387                         break;
5388 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
5389                 case 'm':
5390                         fprintf(stderr, "warning: '-m' is deprecated, "
5391                                 "use '--mode' or '-o' instead\n");
5392 #endif
5393                 case 'o':
5394                         mode_opt = optarg;
5395                         break;
5396                 case 'x':
5397                         xattr = optarg;
5398                         break;
5399                 default:
5400                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5401                                 progname, argv[0], argv[optind - 1]);
5402                         return CMD_HELP;
5403                 }
5404         }
5405
5406         if (optind == argc) {
5407                 fprintf(stderr, "%s %s: DIR must be specified\n",
5408                         progname, argv[0]);
5409                 return CMD_HELP;
5410         }
5411
5412         if (xattr && !foreign_mode) {
5413                 /* only print a warning as this is armless and will be
5414                  * ignored
5415                  */
5416                 fprintf(stderr,
5417                         "%s %s: xattr has been specified for non-foreign layout\n",
5418                         progname, argv[0]);
5419         } else if (foreign_mode && !xattr) {
5420                 fprintf(stderr,
5421                         "%s %s: xattr must be provided in foreign mode\n",
5422                         progname, argv[0]);
5423                 return CMD_HELP;
5424         }
5425
5426         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
5427             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
5428                 fprintf(stderr,
5429                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
5430                         progname, argv[0]);
5431                 return CMD_HELP;
5432         }
5433
5434         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
5435             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
5436                 fprintf(stderr,
5437                         "%s %s: stripe offset and count must be specified\n",
5438                         progname, argv[0]);
5439                 return CMD_HELP;
5440         }
5441
5442         if (delete &&
5443             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
5444              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
5445                 fprintf(stderr,
5446                         "%s %s: cannot specify -d with -c or -i options\n",
5447                         progname, argv[0]);
5448                 return CMD_HELP;
5449         }
5450
5451         if (mode_opt != NULL) {
5452                 mode = strtoul(mode_opt, &end, 8);
5453                 if (*end != '\0') {
5454                         fprintf(stderr,
5455                                 "%s %s: bad MODE '%s'\n",
5456                                 progname, argv[0], mode_opt);
5457                         return CMD_HELP;
5458                 }
5459                 previous_mode = umask(0);
5460         }
5461
5462         /* foreign LMV/dir case */
5463         if (foreign_mode) {
5464                 if (argc > optind + 1) {
5465                         fprintf(stderr,
5466                                 "%s %s: cannot specify multiple foreign dirs\n",
5467                                 progname, argv[0]);
5468                         return CMD_HELP;
5469                 }
5470
5471                 dname = argv[optind];
5472                 result = llapi_dir_create_foreign(dname, mode, type, flags,
5473                                                   xattr);
5474                 if (result != 0)
5475                         fprintf(stderr,
5476                                 "%s mkdir: can't create foreign dir '%s': %s\n",
5477                                 progname, dname, strerror(-result));
5478                 return result;
5479         }
5480
5481         /*
5482          * initialize stripe parameters, in case param is converted to specific,
5483          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
5484          */
5485         param = calloc(1, offsetof(typeof(*param),
5486                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
5487                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
5488         if (param == NULL) {
5489                 fprintf(stderr,
5490                         "%s %s: cannot allocate memory for parameters: %s\n",
5491                         progname, argv[0], strerror(ENOMEM));
5492                 return CMD_HELP;
5493         }
5494
5495         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
5496                 param->lsp_stripe_count = lsa.lsa_stripe_count;
5497         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5498                 param->lsp_stripe_offset = -1;
5499         else
5500                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
5501         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
5502                 param->lsp_stripe_pattern = lsa.lsa_pattern;
5503         else
5504                 param->lsp_stripe_pattern = LMV_HASH_TYPE_FNV_1A_64;
5505         param->lsp_pool = lsa.lsa_pool_name;
5506         param->lsp_is_specific = false;
5507         if (lsa.lsa_nr_tgts > 1) {
5508                 if (lsa.lsa_stripe_count > 0 &&
5509                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
5510                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
5511                         fprintf(stderr, "error: %s: stripe count %lld doesn't "
5512                                 "match the number of MDTs: %d\n",
5513                                 argv[0], lsa.lsa_stripe_count, lsa.lsa_nr_tgts);
5514                         free(param);
5515                         return CMD_HELP;
5516                 }
5517
5518                 param->lsp_is_specific = true;
5519                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
5520                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
5521         }
5522
5523         if (!default_stripe && lsa.lsa_pattern == LMV_HASH_TYPE_SPACE) {
5524                 fprintf(stderr, "%s %s: can only specify -H space with -D\n",
5525                         progname, argv[0]);
5526                 free(param);
5527                 return CMD_HELP;
5528         }
5529
5530         dname = argv[optind];
5531         do {
5532                 if (default_stripe) {
5533                         result = llapi_dir_set_default_lmv(dname, param);
5534                         if (result)
5535                                 fprintf(stderr,
5536                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
5537                                         progname, dname, strerror(-result));
5538                         continue;
5539                 }
5540
5541                 /*
5542                  * if current \a dname isn't under the same \a mntdir as the
5543                  * last one, and the last one was auto-distributed, restore
5544                  * \a param.
5545                  */
5546                 if (mntdir[0] != '\0' &&
5547                     strncmp(dname, mntdir, strlen(mntdir)) &&
5548                     auto_distributed) {
5549                         param->lsp_is_specific = false;
5550                         param->lsp_stripe_offset = -1;
5551                         auto_distributed = false;
5552                 }
5553
5554                 /*
5555                  * TODO: when MDT can allocate object with QoS (LU-9435), below
5556                  * code should be removed, instead we should let LMV to allocate
5557                  * the starting MDT object, and then let LOD allocate other MDT
5558                  * objects.
5559                  */
5560                 if (!param->lsp_is_specific && param->lsp_stripe_offset == -1) {
5561                         char path[PATH_MAX] = "";
5562
5563                         if (!lsb) {
5564                                 lsb = malloc(sizeof(*lsb));
5565                                 if (!lsb) {
5566                                         result = -ENOMEM;
5567                                         break;
5568                                 }
5569                         }
5570                         lsb->sb_count = 0;
5571
5572                         /* use mntdir for dirname() temporarily */
5573                         strncpy(mntdir, dname, sizeof(mntdir));
5574                         if (!realpath(dirname(mntdir), path)) {
5575                                 result = -errno;
5576                                 fprintf(stderr,
5577                                         "error: invalid path '%s': %s\n",
5578                                         argv[optind], strerror(errno));
5579                                 break;
5580                         }
5581                         mntdir[0] = '\0';
5582
5583                         result = llapi_search_mounts(path, 0, mntdir, NULL);
5584                         if (result < 0 || mntdir[0] == '\0') {
5585                                 fprintf(stderr,
5586                                         "No suitable Lustre mount found\n");
5587                                 break;
5588                         }
5589
5590                         result = mntdf(mntdir, NULL, NULL, 0, LL_STATFS_LMV,
5591                                        lsb);
5592                         if (result < 0)
5593                                 break;
5594
5595                         if (param->lsp_stripe_count > lsb->sb_count) {
5596                                 fprintf(stderr,
5597                                         "error: stripe count %d is too big\n",
5598                                         param->lsp_stripe_count);
5599                                 result = -ERANGE;
5600                                 break;
5601                         }
5602
5603                         qsort(lsb->sb_buf, lsb->sb_count,
5604                               sizeof(struct ll_statfs_data),
5605                               ll_statfs_data_comp);
5606
5607                         auto_distributed = true;
5608                 }
5609
5610                 if (auto_distributed) {
5611                         int r;
5612                         int nr = MAX(param->lsp_stripe_count,
5613                                      lsb->sb_count / 2);
5614
5615                         /* don't use server whose usage is above 90% */
5616                         while (nr != param->lsp_stripe_count &&
5617                                obd_statfs_ratio(&lsb->sb_buf[nr].sd_st, false) >
5618                                90)
5619                                 nr = MAX(param->lsp_stripe_count, nr / 2);
5620
5621                         /* get \a r between [0, nr) */
5622                         r = rand() % nr;
5623
5624                         param->lsp_stripe_offset = lsb->sb_buf[r].sd_index;
5625                         if (param->lsp_stripe_count > 1) {
5626                                 int i = 0;
5627
5628                                 param->lsp_is_specific = true;
5629                                 for (; i < param->lsp_stripe_count; i++)
5630                                         param->lsp_tgts[(i + r) % nr] =
5631                                                 lsb->sb_buf[i].sd_index;
5632                         }
5633                 }
5634
5635                 result = llapi_dir_create(dname, mode, param);
5636                 if (result)
5637                         fprintf(stderr,
5638                                 "%s setdirstripe: cannot create dir '%s': %s\n",
5639                                 progname, dname, strerror(-result));
5640         } while (!result && (dname = argv[++optind]));
5641
5642         if (mode_opt != NULL)
5643                 umask(previous_mode);
5644
5645         free(lsb);
5646         free(param);
5647         return result;
5648 }
5649
5650 /* functions */
5651 static int lfs_rmentry(int argc, char **argv)
5652 {
5653         char *dname;
5654         int   index;
5655         int   result = 0;
5656
5657         if (argc <= 1) {
5658                 fprintf(stderr, "error: %s: missing dirname\n",
5659                         argv[0]);
5660                 return CMD_HELP;
5661         }
5662
5663         index = 1;
5664         dname = argv[index];
5665         while (dname != NULL) {
5666                 result = llapi_direntry_remove(dname);
5667                 if (result) {
5668                         fprintf(stderr, "error: %s: remove dir entry '%s' "
5669                                 "failed\n", argv[0], dname);
5670                         break;
5671                 }
5672                 dname = argv[++index];
5673         }
5674         return result;
5675 }
5676
5677 static int lfs_mv(int argc, char **argv)
5678 {
5679         struct lmv_user_md lmu = { LMV_USER_MAGIC };
5680         struct find_param param = {
5681                 .fp_max_depth = -1,
5682                 .fp_mdt_index = -1,
5683         };
5684         char *end;
5685         int c;
5686         int rc = 0;
5687         struct option long_opts[] = {
5688         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5689         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5690         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5691         { .name = NULL } };
5692
5693         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
5694                 switch (c) {
5695 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5696                 case 'M':
5697                         fprintf(stderr, "warning: '-M' deprecated"
5698                                 ", use '--mdt-index' or '-m' instead\n");
5699 #endif
5700                 case 'm':
5701                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
5702                         if (*end != '\0') {
5703                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
5704                                         progname, optarg);
5705                                 return CMD_HELP;
5706                         }
5707                         break;
5708                 case 'v':
5709                         param.fp_verbose = VERBOSE_DETAIL;
5710                         break;
5711                 default:
5712                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
5713                                 progname, argv[optind - 1]);
5714                         return CMD_HELP;
5715                 }
5716         }
5717
5718         if (lmu.lum_stripe_offset == -1) {
5719                 fprintf(stderr, "%s mv: MDT index must be specified\n",
5720                         progname);
5721                 return CMD_HELP;
5722         }
5723
5724         if (optind >= argc) {
5725                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
5726                 return CMD_HELP;
5727         }
5728
5729
5730         /* initialize migrate mdt parameters */
5731         param.fp_lmv_md = &lmu;
5732         param.fp_migrate = 1;
5733         rc = llapi_migrate_mdt(argv[optind], &param);
5734         if (rc != 0)
5735                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
5736                         progname, argv[optind], param.fp_mdt_index,
5737                         strerror(-rc));
5738         return rc;
5739 }
5740
5741 static int lfs_osts(int argc, char **argv)
5742 {
5743         return lfs_tgts(argc, argv);
5744 }
5745
5746 static int lfs_mdts(int argc, char **argv)
5747 {
5748         return lfs_tgts(argc, argv);
5749 }
5750
5751 static int lfs_df(int argc, char **argv)
5752 {
5753         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5754         enum mntdf_flags flags = MNTDF_SHOW;
5755         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
5756         int c, rc = 0, index = 0;
5757         char fsname[PATH_MAX] = "", *pool_name = NULL;
5758         struct option long_opts[] = {
5759         { .val = 'h',   .name = "human-readable",
5760                                                 .has_arg = no_argument },
5761         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
5762         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
5763         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
5764         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5765         { .name = NULL} };
5766
5767         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
5768                 switch (c) {
5769                 case 'h':
5770                         flags |= MNTDF_COOKED;
5771                         break;
5772                 case 'i':
5773                         flags |= MNTDF_INODES;
5774                         break;
5775                 case 'l':
5776                         flags |= MNTDF_LAZY;
5777                         break;
5778                 case 'p':
5779                         pool_name = optarg;
5780                         break;
5781                 case 'v':
5782                         flags |= MNTDF_VERBOSE;
5783                         break;
5784                 default:
5785                         return CMD_HELP;
5786                 }
5787         }
5788         if (optind < argc && !realpath(argv[optind], path)) {
5789                 rc = -errno;
5790                 fprintf(stderr, "error: invalid path '%s': %s\n",
5791                         argv[optind], strerror(-rc));
5792                 return rc;
5793         }
5794
5795         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5796                 /* Check if we have a mount point */
5797                 if (mntdir[0] == '\0')
5798                         continue;
5799
5800                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
5801                 if (rc || path[0] != '\0')
5802                         break;
5803                 fsname[0] = '\0'; /* avoid matching in next loop */
5804                 mntdir[0] = '\0'; /* avoid matching in next loop */
5805         }
5806
5807         return rc;
5808 }
5809
5810 static int print_instance(const char *mntdir, char *fsname, size_t fsnamelen,
5811                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
5812 {
5813         char *buf = fsname;
5814
5815         /* llapi_search_mounts() fills "fsname", but that is not called if
5816          * explicit paths are specified on the command-line
5817          */
5818         if (opt_instance || (opt_fsname && fsname[0] == '\0')) {
5819                 int rc = llapi_getname(mntdir, fsname, fsnamelen);
5820
5821                 if (rc < 0) {
5822                         fprintf(stderr, "cannot get instance for '%s': %s\n",
5823                                 mntdir, strerror(-rc));
5824                         return rc;
5825                 }
5826                 buf = fsname;
5827                 if (!opt_instance) {
5828                         /* print only the fsname name */
5829                         buf = strchr(fsname, '-');
5830                         if (buf)
5831                                 *buf = '\0';
5832                         buf = fsname;
5833                 } else if (!opt_fsname) {
5834                         /* print only the instance name */
5835                         buf = strchr(fsname, '-');
5836                         if (buf)
5837                                 buf++;
5838                         else
5839                                 buf = fsname;
5840                 }
5841         } else if (opt_fsname) {
5842                 /* print only the fsname */
5843                 buf = fsname;
5844         }
5845
5846         printf("%s %s\n", buf, opt_mntdir ? mntdir : "");
5847
5848         return 0;
5849 }
5850
5851 static int lfs_getname(int argc, char **argv)
5852 {
5853         struct option long_opts[] = {
5854         { .val = 'h',   .name = "help",         .has_arg = no_argument },
5855         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
5856         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
5857         { .name = NULL} };
5858         bool opt_instance = false, opt_fsname = false;
5859         char fsname[PATH_MAX] = "";
5860         int rc = 0, rc2, c;
5861
5862         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
5863                 switch (c) {
5864                 case 'i':
5865                         opt_instance = true;
5866                         break;
5867                 case 'n':
5868                         opt_fsname = true;
5869                         break;
5870                 case 'h':
5871                 default:
5872                         return CMD_HELP;
5873                 }
5874         }
5875
5876         /* If neither option is given, print both instance and fsname */
5877         if (!opt_instance && !opt_fsname)
5878                 opt_instance = opt_fsname = true;
5879
5880         if (optind == argc) { /* no paths specified, get all paths. */
5881                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
5882                 int index = 0;
5883
5884                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5885                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
5886                                              opt_instance, opt_fsname, true);
5887                         if (!rc)
5888                                 rc = rc2;
5889                         path[0] = fsname[0] = mntdir[0] = '\0';
5890                 }
5891         } else { /* paths specified, only attempt to search these. */
5892                 bool opt_mntdir;
5893
5894                 /* if only one path is given, print only requested info */
5895                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
5896
5897                 for (; optind < argc; optind++) {
5898                         rc2 = print_instance(argv[optind], fsname,
5899                                              sizeof(fsname), opt_instance,
5900                                              opt_fsname, opt_mntdir);
5901                         if (!rc)
5902                                 rc = rc2;
5903                         fsname[0] = '\0';
5904                 }
5905         }
5906
5907         return rc;
5908 }
5909
5910 static int lfs_check(int argc, char **argv)
5911 {
5912         char mntdir[PATH_MAX] = {'\0'};
5913         int num_types = 1;
5914         char *obd_types[3];
5915         char obd_type1[4];
5916         char obd_type2[4];
5917         char obd_type3[4];
5918         int rc;
5919
5920         if (argc != 2) {
5921                 fprintf(stderr, "%s check: server type must be specified\n",
5922                         progname);
5923                 return CMD_HELP;
5924         }
5925
5926         obd_types[0] = obd_type1;
5927         obd_types[1] = obd_type2;
5928         obd_types[2] = obd_type3;
5929
5930         if (strcmp(argv[1], "osts") == 0) {
5931                 strcpy(obd_types[0], "osc");
5932         } else if (strcmp(argv[1], "mdts") == 0 ||
5933                    strcmp(argv[1], "mds") == 0) {
5934                 strcpy(obd_types[0], "mdc");
5935         } else if (strcmp(argv[1], "mgts") == 0) {
5936                 strcpy(obd_types[0], "mgc");
5937         } else if (strcmp(argv[1], "all") == 0 ||
5938                    strcmp(argv[1], "servers") == 0) {
5939                 num_types = 3;
5940                 strcpy(obd_types[0], "osc");
5941                 strcpy(obd_types[1], "mdc");
5942                 strcpy(obd_types[2], "mgc");
5943         } else {
5944                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
5945                         progname, argv[1]);
5946                 return CMD_HELP;
5947         }
5948
5949         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
5950         if (rc < 0 || mntdir[0] == '\0') {
5951                 fprintf(stderr,
5952                         "%s check: cannot find mounted Lustre filesystem: %s\n",
5953                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
5954                 return rc;
5955         }
5956
5957         rc = llapi_target_check(num_types, obd_types, mntdir);
5958         if (rc)
5959                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
5960                         progname, argv[1], strerror(-rc));
5961
5962         return rc;
5963
5964 }
5965
5966 #ifdef HAVE_SYS_QUOTA_H
5967 #define ARG2INT(nr, str, msg)                                           \
5968 do {                                                                    \
5969         char *endp;                                                     \
5970         nr = strtol(str, &endp, 0);                                     \
5971         if (*endp != '\0') {                                            \
5972                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
5973                         progname, msg, str);                            \
5974                 return CMD_HELP;                                        \
5975         }                                                               \
5976 } while (0)
5977
5978 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
5979
5980 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
5981  * returns the value or ULONG_MAX on integer overflow or incorrect format
5982  * Notes:
5983  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
5984  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
5985  *        3. empty integer value is interpreted as 0
5986  */
5987 static unsigned long str2sec(const char* timestr)
5988 {
5989         const char spec[] = "smhdw";
5990         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5991         unsigned long val = 0;
5992         char *tail;
5993
5994         if (strpbrk(timestr, spec) == NULL) {
5995                 /* no specifiers inside the time string,
5996                    should treat it as an integer value */
5997                 val = strtoul(timestr, &tail, 10);
5998                 return *tail ? ULONG_MAX : val;
5999         }
6000
6001         /* format string is XXwXXdXXhXXmXXs */
6002         while (*timestr) {
6003                 unsigned long v;
6004                 int ind;
6005                 char* ptr;
6006
6007                 v = strtoul(timestr, &tail, 10);
6008                 if (v == ULONG_MAX || *tail == '\0')
6009                         /* value too large (ULONG_MAX or more)
6010                            or missing specifier */
6011                         goto error;
6012
6013                 ptr = strchr(spec, *tail);
6014                 if (ptr == NULL)
6015                         /* unknown specifier */
6016                         goto error;
6017
6018                 ind = ptr - spec;
6019
6020                 /* check if product will overflow the type */
6021                 if (!(v < ULONG_MAX / mult[ind]))
6022                         goto error;
6023
6024                 ADD_OVERFLOW(val, mult[ind] * v);
6025                 if (val == ULONG_MAX)
6026                         goto error;
6027
6028                 timestr = tail + 1;
6029         }
6030
6031         return val;
6032
6033 error:
6034         return ULONG_MAX;
6035 }
6036
6037 #define ARG2ULL(nr, str, def_units)                                     \
6038 do {                                                                    \
6039         unsigned long long limit, units = def_units;                    \
6040         int rc;                                                         \
6041                                                                         \
6042         rc = llapi_parse_size(str, &limit, &units, 1);                  \
6043         if (rc < 0) {                                                   \
6044                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
6045                         progname, str);                                 \
6046                 return CMD_HELP;                                        \
6047         }                                                               \
6048         nr = limit;                                                     \
6049 } while (0)
6050
6051 static inline int has_times_option(int argc, char **argv)
6052 {
6053         int i;
6054
6055         for (i = 1; i < argc; i++)
6056                 if (!strcmp(argv[i], "-t"))
6057                         return 1;
6058
6059         return 0;
6060 }
6061
6062 int lfs_setquota_times(int argc, char **argv)
6063 {
6064         int c, rc;
6065         struct if_quotactl qctl;
6066         char *mnt, *obd_type = (char *)qctl.obd_type;
6067         struct obd_dqblk *dqb = &qctl.qc_dqblk;
6068         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
6069         struct option long_opts[] = {
6070         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
6071         { .val = 'g',   .name = "group",        .has_arg = no_argument },
6072         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
6073         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
6074         { .val = 't',   .name = "times",        .has_arg = no_argument },
6075         { .val = 'u',   .name = "user",         .has_arg = no_argument },
6076         { .name = NULL } };
6077         int qtype;
6078
6079         memset(&qctl, 0, sizeof(qctl));
6080         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
6081         qctl.qc_type = ALLQUOTA;
6082
6083         while ((c = getopt_long(argc, argv, "b:gi:ptu",
6084                                 long_opts, NULL)) != -1) {
6085                 switch (c) {
6086                 case 'u':
6087                         qtype = USRQUOTA;
6088                         goto quota_type;
6089                 case 'g':
6090                         qtype = GRPQUOTA;
6091                         goto quota_type;
6092                 case 'p':
6093                         qtype = PRJQUOTA;
6094 quota_type:
6095                         if (qctl.qc_type != ALLQUOTA) {
6096                                 fprintf(stderr, "error: -u/g/p can't be used "
6097                                                 "more than once\n");
6098                                 return CMD_HELP;
6099                         }
6100                         qctl.qc_type = qtype;
6101                         break;
6102                 case 'b':
6103                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
6104                                 fprintf(stderr, "error: bad block-grace: %s\n",
6105                                         optarg);
6106                                 return CMD_HELP;
6107                         }
6108                         dqb->dqb_valid |= QIF_BTIME;
6109                         break;
6110                 case 'i':
6111                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
6112                                 fprintf(stderr, "error: bad inode-grace: %s\n",
6113                                         optarg);
6114                                 return CMD_HELP;
6115                         }
6116                         dqb->dqb_valid |= QIF_ITIME;
6117                         break;
6118                 case 't': /* Yes, of course! */
6119                         break;
6120                 default: /* getopt prints error message for us when opterr != 0 */
6121                         return CMD_HELP;
6122                 }
6123         }
6124
6125         if (qctl.qc_type == ALLQUOTA) {
6126                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
6127                 return CMD_HELP;
6128         }
6129
6130         if (optind != argc - 1) {
6131                 fprintf(stderr, "error: unexpected parameters encountered\n");
6132                 return CMD_HELP;
6133         }
6134
6135         if ((dqb->dqb_valid | QIF_BTIME && dqi->dqi_bgrace >= UINT_MAX) ||
6136             (dqb->dqb_valid | QIF_ITIME && dqi->dqi_igrace >= UINT_MAX)) {
6137                 fprintf(stderr, "error: grace time is too large\n");
6138                 return CMD_HELP;
6139         }
6140
6141         mnt = argv[optind];
6142         rc = llapi_quotactl(mnt, &qctl);
6143         if (rc) {
6144                 if (*obd_type)
6145                         fprintf(stderr, "%s %s ", obd_type,
6146                                 obd_uuid2str(&qctl.obd_uuid));
6147                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
6148                 return rc;
6149         }
6150
6151         return 0;
6152 }
6153
6154 #define BSLIMIT (1 << 0)
6155 #define BHLIMIT (1 << 1)
6156 #define ISLIMIT (1 << 2)
6157 #define IHLIMIT (1 << 3)
6158
6159 int lfs_setquota(int argc, char **argv)
6160 {
6161         int c, rc = 0;
6162         struct if_quotactl qctl;
6163         char *mnt, *obd_type = (char *)qctl.obd_type;
6164         struct obd_dqblk *dqb = &qctl.qc_dqblk;
6165         struct option long_opts[] = {
6166         { .val = 'b',   .name = "block-softlimit",
6167                                                 .has_arg = required_argument },
6168         { .val = 'B',   .name = "block-hardlimit",
6169                                                 .has_arg = required_argument },
6170         { .val = 'd',   .name = "default",      .has_arg = no_argument },
6171         { .val = 'g',   .name = "group",        .has_arg = required_argument },
6172         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
6173         { .val = 'i',   .name = "inode-softlimit",
6174                                                 .has_arg = required_argument },
6175         { .val = 'I',   .name = "inode-hardlimit",
6176                                                 .has_arg = required_argument },
6177         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
6178         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
6179         { .val = 'u',   .name = "user",         .has_arg = required_argument },
6180         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
6181         { .name = NULL } };
6182         unsigned limit_mask = 0;
6183         char *endptr;
6184         bool use_default = false;
6185         int qtype;
6186
6187         if (has_times_option(argc, argv))
6188                 return lfs_setquota_times(argc, argv);
6189
6190         memset(&qctl, 0, sizeof(qctl));
6191         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
6192         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
6193                                   * so it can be used as a marker that qc_type
6194                                   * isn't reinitialized from command line */
6195
6196         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:U",
6197                 long_opts, NULL)) != -1) {
6198                 switch (c) {
6199                 case 'U':
6200                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6201                         qtype = USRQUOTA;
6202                         qctl.qc_id = 0;
6203                         goto quota_type_def;
6204                 case 'u':
6205                         qtype = USRQUOTA;
6206                         rc = name2uid(&qctl.qc_id, optarg);
6207                         goto quota_type;
6208                 case 'G':
6209                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6210                         qtype = GRPQUOTA;
6211                         qctl.qc_id = 0;
6212                         goto quota_type_def;
6213                 case 'g':
6214                         qtype = GRPQUOTA;
6215                         rc = name2gid(&qctl.qc_id, optarg);
6216                         goto quota_type;
6217                 case 'P':
6218                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6219                         qtype = PRJQUOTA;
6220                         qctl.qc_id = 0;
6221                         goto quota_type_def;
6222                 case 'p':
6223                         qtype = PRJQUOTA;
6224                         rc = name2projid(&qctl.qc_id, optarg);
6225 quota_type:
6226                         if (rc) {
6227                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
6228                                 if (*endptr != '\0') {
6229                                         fprintf(stderr, "%s setquota: invalid"
6230                                                 " id '%s'\n", progname, optarg);
6231                                         return -1;
6232                                 }
6233                         }
6234
6235                         if (qctl.qc_id == 0) {
6236                                 fprintf(stderr, "%s setquota: can't set quota"
6237                                         " for root usr/group/project.\n",
6238                                         progname);
6239                                 return -1;
6240                         }
6241
6242 quota_type_def:
6243                         if (qctl.qc_type != ALLQUOTA) {
6244                                 fprintf(stderr,
6245                                         "%s setquota: only one of -u, -U, -g,"
6246                                         " -G, -p or -P may be specified\n",
6247                                         progname);
6248                                 return CMD_HELP;
6249                         }
6250                         qctl.qc_type = qtype;
6251                         break;
6252                 case 'd':
6253                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6254                         use_default = true;
6255                         break;
6256                 case 'b':
6257                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
6258                         dqb->dqb_bsoftlimit >>= 10;
6259                         limit_mask |= BSLIMIT;
6260                         if (dqb->dqb_bsoftlimit &&
6261                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
6262                                 fprintf(stderr,
6263                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
6264                                         "See '%s help setquota' or Lustre manual for details\n",
6265                                         progname, dqb->dqb_bsoftlimit,
6266                                         progname);
6267                         break;
6268                 case 'B':
6269                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
6270                         dqb->dqb_bhardlimit >>= 10;
6271                         limit_mask |= BHLIMIT;
6272                         if (dqb->dqb_bhardlimit &&
6273                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
6274                                 fprintf(stderr,
6275                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
6276                                         "See '%s help setquota' or Lustre manual for details\n",
6277                                         progname, dqb->dqb_bhardlimit,
6278                                         progname);
6279                         break;
6280                 case 'i':
6281                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
6282                         limit_mask |= ISLIMIT;
6283                         if (dqb->dqb_isoftlimit &&
6284                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
6285                                 fprintf(stderr,
6286                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
6287                                         "See '%s help setquota' or Lustre manual for details\n",
6288                                         progname, dqb->dqb_isoftlimit,
6289                                         progname);
6290                         break;
6291                 case 'I':
6292                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
6293                         limit_mask |= IHLIMIT;
6294                         if (dqb->dqb_ihardlimit &&
6295                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
6296                                 fprintf(stderr,
6297                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
6298                                         "See '%s help setquota' or Lustre manual for details\n",
6299                                         progname, dqb->dqb_ihardlimit,
6300                                         progname);
6301                         break;
6302                 default:
6303                         fprintf(stderr,
6304                                 "%s setquota: unrecognized option '%s'\n",
6305                                 progname, argv[optind - 1]);
6306                         return CMD_HELP;
6307                 }
6308         }
6309
6310         if (qctl.qc_type == ALLQUOTA) {
6311                 fprintf(stderr,
6312                         "%s setquota: either -u or -g must be specified\n",
6313                         progname);
6314                 return CMD_HELP;
6315         }
6316
6317         if (!use_default && limit_mask == 0) {
6318                 fprintf(stderr,
6319                         "%s setquota: at least one limit must be specified\n",
6320                         progname);
6321                 return CMD_HELP;
6322         }
6323
6324         if (use_default && limit_mask != 0) {
6325                 fprintf(stderr,
6326                         "%s setquota: limits should not be specified when"
6327                         " using default quota\n",
6328                         progname);
6329                 return CMD_HELP;
6330         }
6331
6332         if (use_default && qctl.qc_id == 0) {
6333                 fprintf(stderr,
6334                         "%s setquota: can not set default quota for root"
6335                         " user/group/project\n",
6336                         progname);
6337                 return CMD_HELP;
6338         }
6339
6340         if (optind != argc - 1) {
6341                 fprintf(stderr,
6342                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
6343                         progname, argv[optind]);
6344                 return CMD_HELP;
6345         }
6346
6347         mnt = argv[optind];
6348
6349         if (use_default) {
6350                 dqb->dqb_bhardlimit = 0;
6351                 dqb->dqb_bsoftlimit = 0;
6352                 dqb->dqb_ihardlimit = 0;
6353                 dqb->dqb_isoftlimit = 0;
6354                 dqb->dqb_itime = 0;
6355                 dqb->dqb_btime = 0;
6356                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
6357         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
6358                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
6359                 /* sigh, we can't just set blimits/ilimits */
6360                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
6361                                                .qc_type = qctl.qc_type,
6362                                                .qc_id   = qctl.qc_id};
6363
6364                 rc = llapi_quotactl(mnt, &tmp_qctl);
6365                 if (rc < 0)
6366                         return rc;
6367
6368                 if (!(limit_mask & BHLIMIT))
6369                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
6370                 if (!(limit_mask & BSLIMIT))
6371                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
6372                 if (!(limit_mask & IHLIMIT))
6373                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
6374                 if (!(limit_mask & ISLIMIT))
6375                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
6376
6377                 /* Keep grace times if we have got no softlimit arguments */
6378                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
6379                         dqb->dqb_valid |= QIF_BTIME;
6380                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
6381                 }
6382
6383                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
6384                         dqb->dqb_valid |= QIF_ITIME;
6385                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
6386                 }
6387         }
6388
6389         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
6390         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
6391
6392         rc = llapi_quotactl(mnt, &qctl);
6393         if (rc) {
6394                 if (*obd_type)
6395                         fprintf(stderr,
6396                                 "%s setquota: cannot quotactl '%s' '%s': %s",
6397                                 progname, obd_type,
6398                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
6399                 return rc;
6400         }
6401
6402         return 0;
6403 }
6404
6405 /* Converts seconds value into format string
6406  * result is returned in buf
6407  * Notes:
6408  *        1. result is in descenting order: 1w2d3h4m5s
6409  *        2. zero fields are not filled (except for p. 3): 5d1s
6410  *        3. zero seconds value is presented as "0s"
6411  */
6412 static char * __sec2str(time_t seconds, char *buf)
6413 {
6414         const char spec[] = "smhdw";
6415         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6416         unsigned long c;
6417         char *tail = buf;
6418         int i;
6419
6420         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
6421                 c = seconds / mult[i];
6422
6423                 if (c > 0 || (i == 0 && buf == tail))
6424                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
6425
6426                 seconds %= mult[i];
6427         }
6428
6429         return tail;
6430 }
6431
6432 static void sec2str(time_t seconds, char *buf, int rc)
6433 {
6434         char *tail = buf;
6435
6436         if (rc)
6437                 *tail++ = '[';
6438
6439         tail = __sec2str(seconds, tail);
6440
6441         if (rc && tail - buf < 39) {
6442                 *tail++ = ']';
6443                 *tail++ = 0;
6444         }
6445 }
6446
6447 static void diff2str(time_t seconds, char *buf, time_t now)
6448 {
6449
6450         buf[0] = 0;
6451         if (!seconds)
6452                 return;
6453         if (seconds <= now) {
6454                 strcpy(buf, "none");
6455                 return;
6456         }
6457         __sec2str(seconds - now, buf);
6458 }
6459
6460 static void print_quota_title(char *name, struct if_quotactl *qctl,
6461                               bool human_readable, bool show_default)
6462 {
6463         if (show_default) {
6464                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
6465                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
6466                        "Filesystem", "bquota", "blimit", "bgrace",
6467                        "iquota", "ilimit", "igrace");
6468         } else {
6469                 printf("Disk quotas for %s %s (%cid %u):\n",
6470                        qtype_name(qctl->qc_type), name,
6471                        *qtype_name(qctl->qc_type), qctl->qc_id);
6472                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
6473                        "Filesystem", human_readable ? "used" : "kbytes",
6474                        "quota", "limit", "grace",
6475                        "files", "quota", "limit", "grace");
6476         }
6477 }
6478
6479 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
6480 {
6481         if (!h) {
6482                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
6483         } else {
6484                 if (num >> 40)
6485                         snprintf(buf, buflen, "%5.4gP",
6486                                  (double)num / ((__u64)1 << 40));
6487                 else if (num >> 30)
6488                         snprintf(buf, buflen, "%5.4gT",
6489                                  (double)num / (1 << 30));
6490                 else if (num >> 20)
6491                         snprintf(buf, buflen, "%5.4gG",
6492                                  (double)num / (1 << 20));
6493                 else if (num >> 10)
6494                         snprintf(buf, buflen, "%5.4gM",
6495                                  (double)num / (1 << 10));
6496                 else
6497                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
6498         }
6499 }
6500
6501 #define STRBUF_LEN      32
6502 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
6503                         int rc, bool h, bool show_default)
6504 {
6505         time_t now;
6506
6507         time(&now);
6508
6509         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
6510             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
6511                 int bover = 0, iover = 0;
6512                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
6513                 char numbuf[3][STRBUF_LEN];
6514                 char timebuf[40];
6515                 char strbuf[STRBUF_LEN];
6516
6517                 if (dqb->dqb_bhardlimit &&
6518                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
6519                         bover = 1;
6520                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
6521                         if (dqb->dqb_btime > now) {
6522                                 bover = 2;
6523                         } else {
6524                                 bover = 3;
6525                         }
6526                 }
6527
6528                 if (dqb->dqb_ihardlimit &&
6529                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
6530                         iover = 1;
6531                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
6532                         if (dqb->dqb_itime > now) {
6533                                 iover = 2;
6534                         } else {
6535                                 iover = 3;
6536                         }
6537                 }
6538
6539
6540                 if (strlen(mnt) > 15)
6541                         printf("%s\n%15s", mnt, "");
6542                 else
6543                         printf("%15s", mnt);
6544
6545                 if (bover)
6546                         diff2str(dqb->dqb_btime, timebuf, now);
6547                 else if (show_default)
6548                         snprintf(timebuf, sizeof(timebuf), "%llu",
6549                                  dqb->dqb_btime);
6550
6551                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
6552                            strbuf, sizeof(strbuf), h);
6553                 if (rc == -EREMOTEIO)
6554                         sprintf(numbuf[0], "%s*", strbuf);
6555                 else
6556                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
6557                                 "%s" : "[%s]", strbuf);
6558
6559                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
6560                 if (type == QC_GENERAL)
6561                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
6562                                 "%s" : "[%s]", strbuf);
6563                 else
6564                         sprintf(numbuf[1], "%s", "-");
6565
6566                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
6567                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
6568                         "%s" : "[%s]", strbuf);
6569
6570                 if (show_default)
6571                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6572                 else
6573                         printf(" %7s%c %6s %7s %7s",
6574                                numbuf[0], bover ? '*' : ' ', numbuf[1],
6575                                numbuf[2], bover > 1 ? timebuf : "-");
6576
6577
6578                 if (iover)
6579                         diff2str(dqb->dqb_itime, timebuf, now);
6580                 else if (show_default)
6581                         snprintf(timebuf, sizeof(timebuf), "%llu",
6582                                  dqb->dqb_itime);
6583
6584                 snprintf(numbuf[0], sizeof(numbuf),
6585                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
6586                          (uintmax_t)dqb->dqb_curinodes);
6587
6588                 if (type == QC_GENERAL)
6589                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
6590                                 "%ju" : "[%ju]",
6591                                 (uintmax_t)dqb->dqb_isoftlimit);
6592                 else
6593                         sprintf(numbuf[1], "%s", "-");
6594
6595                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
6596                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
6597
6598                 if (show_default)
6599                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6600                 else if (type != QC_OSTIDX)
6601                         printf(" %7s%c %6s %7s %7s",
6602                                numbuf[0], iover ? '*' : ' ', numbuf[1],
6603                                numbuf[2], iover > 1 ? timebuf : "-");
6604                 else
6605                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
6606                 printf("\n");
6607
6608         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
6609                    qctl->qc_cmd == Q_GETOINFO) {
6610                 char bgtimebuf[40];
6611                 char igtimebuf[40];
6612
6613                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
6614                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
6615                 printf("Block grace time: %s; Inode grace time: %s\n",
6616                        bgtimebuf, igtimebuf);
6617         }
6618 }
6619
6620 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
6621                            bool h, __u64 *total)
6622 {
6623         int rc = 0, rc1 = 0, count = 0;
6624         __u32 valid = qctl->qc_valid;
6625
6626         rc = llapi_get_obd_count(mnt, &count, is_mdt);
6627         if (rc) {
6628                 fprintf(stderr, "can not get %s count: %s\n",
6629                         is_mdt ? "mdt": "ost", strerror(-rc));
6630                 return rc;
6631         }
6632
6633         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
6634                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
6635                 rc = llapi_quotactl(mnt, qctl);
6636                 if (rc) {
6637                         /* It is remote client case. */
6638                         if (rc == -EOPNOTSUPP) {
6639                                 rc = 0;
6640                                 goto out;
6641                         }
6642
6643                         if (!rc1)
6644                                 rc1 = rc;
6645                         fprintf(stderr, "quotactl %s%d failed.\n",
6646                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
6647                         continue;
6648                 }
6649
6650                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
6651                             qctl->qc_valid, 0, h, false);
6652                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
6653                                    qctl->qc_dqblk.dqb_bhardlimit;
6654         }
6655 out:
6656         qctl->qc_valid = valid;
6657         return rc ? : rc1;
6658 }
6659
6660 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
6661                            int verbose, int quiet, bool human_readable,
6662                            bool show_default)
6663 {
6664         int rc1 = 0, rc2 = 0, rc3 = 0;
6665         char *obd_type = (char *)qctl->obd_type;
6666         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
6667         __u64 total_ialloc = 0, total_balloc = 0;
6668         bool use_default_for_blk = false;
6669         bool use_default_for_file = false;
6670         int inacc;
6671
6672         rc1 = llapi_quotactl(mnt, qctl);
6673         if (rc1 < 0) {
6674                 switch (rc1) {
6675                 case -ESRCH:
6676                         fprintf(stderr, "%s quotas are not enabled.\n",
6677                                 qtype_name(qctl->qc_type));
6678                         goto out;
6679                 case -EPERM:
6680                         fprintf(stderr, "Permission denied.\n");
6681                 case -ENODEV:
6682                 case -ENOENT:
6683                         /* We already got error message. */
6684                         goto out;
6685                 default:
6686                         fprintf(stderr, "Unexpected quotactl error: %s\n",
6687                                 strerror(-rc1));
6688                 }
6689         }
6690
6691         if (!show_default && qctl->qc_id == 0) {
6692                 qctl->qc_dqblk.dqb_bhardlimit = 0;
6693                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
6694                 qctl->qc_dqblk.dqb_ihardlimit = 0;
6695                 qctl->qc_dqblk.dqb_isoftlimit = 0;
6696                 qctl->qc_dqblk.dqb_btime = 0;
6697                 qctl->qc_dqblk.dqb_itime = 0;
6698                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
6699         }
6700
6701         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
6702             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
6703                 use_default_for_blk = true;
6704                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
6705         }
6706
6707         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
6708             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
6709                 use_default_for_file = true;
6710                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
6711         }
6712
6713         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
6714              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
6715                 print_quota_title(name, qctl, human_readable, show_default);
6716
6717         if (rc1 && *obd_type)
6718                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
6719
6720         if (qctl->qc_valid != QC_GENERAL)
6721                 mnt = "";
6722
6723         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
6724                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
6725                  (QIF_LIMITS|QIF_USAGE));
6726
6727         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
6728
6729         if (!show_default && verbose &&
6730             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO) {
6731                 char strbuf[STRBUF_LEN];
6732
6733                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
6734                                       &total_ialloc);
6735                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
6736                                       &total_balloc);
6737                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
6738                            human_readable);
6739                 printf("Total allocated inode limit: %ju, total "
6740                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
6741                        strbuf);
6742         }
6743
6744         if (use_default_for_blk)
6745                 printf("%cid %u is using default block quota setting\n",
6746                        *qtype_name(qctl->qc_type), qctl->qc_id);
6747
6748         if (use_default_for_file)
6749                 printf("%cid %u is using default file quota setting\n",
6750                        *qtype_name(qctl->qc_type), qctl->qc_id);
6751
6752         if (rc1 || rc2 || rc3 || inacc)
6753                 printf("Some errors happened when getting quota info. "
6754                        "Some devices may be not working or deactivated. "
6755                        "The data in \"[]\" is inaccurate.\n");
6756 out:
6757         return rc1;
6758
6759 }
6760
6761 static int lfs_project(int argc, char **argv)
6762 {
6763         int ret = 0, err = 0, c, i;
6764         struct project_handle_control phc = { 0 };
6765         enum lfs_project_ops_t op;
6766
6767         phc.newline = true;
6768         phc.assign_projid = false;
6769         /* default action */
6770         op = LFS_PROJECT_LIST;
6771
6772         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
6773                 switch (c) {
6774                 case 'c':
6775                         if (op != LFS_PROJECT_LIST) {
6776                                 fprintf(stderr,
6777                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6778                                         progname);
6779                                 return CMD_HELP;
6780                         }
6781
6782                         op = LFS_PROJECT_CHECK;
6783                         break;
6784                 case 'C':
6785                         if (op != LFS_PROJECT_LIST) {
6786                                 fprintf(stderr,
6787                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6788                                         progname);
6789                                 return CMD_HELP;
6790                         }
6791
6792                         op = LFS_PROJECT_CLEAR;
6793                         break;
6794                 case 's':
6795                         if (op != LFS_PROJECT_LIST) {
6796                                 fprintf(stderr,
6797                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6798                                         progname);
6799                                 return CMD_HELP;
6800                         }
6801
6802                         phc.set_inherit = true;
6803                         op = LFS_PROJECT_SET;
6804                         break;
6805                 case 'd':
6806                         phc.dironly = true;
6807                         break;
6808                 case 'k':
6809                         phc.keep_projid = true;
6810                         break;
6811                 case 'r':
6812                         phc.recursive = true;
6813                         break;
6814                 case 'p':
6815                         phc.projid = strtoul(optarg, NULL, 0);
6816                         phc.assign_projid = true;
6817
6818                         break;
6819                 case '0':
6820                         phc.newline = false;
6821                         break;
6822                 default:
6823                         fprintf(stderr, "%s: invalid option '%c'\n",
6824                                 progname, optopt);
6825                         return CMD_HELP;
6826                 }
6827         }
6828
6829         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
6830                 op = LFS_PROJECT_SET;
6831                 phc.set_projid = true;
6832         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
6833                 phc.set_projid = true;
6834         }
6835
6836         switch (op) {
6837         case LFS_PROJECT_CHECK:
6838                 if (phc.keep_projid) {
6839                         fprintf(stderr,
6840                                 "%s: '-k' is useless together with '-c'\n",
6841                                 progname);
6842                         return CMD_HELP;
6843                 }
6844                 break;
6845         case LFS_PROJECT_CLEAR:
6846                 if (!phc.newline) {
6847                         fprintf(stderr,
6848                                 "%s: '-0' is useless together with '-C'\n",
6849                                 progname);
6850                         return CMD_HELP;
6851                 }
6852                 if (phc.assign_projid) {
6853                         fprintf(stderr,
6854                                 "%s: '-p' is useless together with '-C'\n",
6855                                 progname);
6856                         return CMD_HELP;
6857                 }
6858                 break;
6859         case LFS_PROJECT_SET:
6860                 if (!phc.newline) {
6861                         fprintf(stderr,
6862                                 "%s: '-0' is useless together with '-s'\n",
6863                                 progname);
6864                         return CMD_HELP;
6865                 }
6866                 if (phc.keep_projid) {
6867                         fprintf(stderr,
6868                                 "%s: '-k' is useless together with '-s'\n",
6869                                 progname);
6870                         return CMD_HELP;
6871                 }
6872                 break;
6873         default:
6874                 if (!phc.newline) {
6875                         fprintf(stderr,
6876                                 "%s: '-0' is useless for list operations\n",
6877                                 progname);
6878                         return CMD_HELP;
6879                 }
6880                 break;
6881         }
6882
6883         argv += optind;
6884         argc -= optind;
6885         if (argc == 0) {
6886                 fprintf(stderr, "%s: missing file or directory target(s)\n",
6887                         progname);
6888                 return CMD_HELP;
6889         }
6890
6891         for (i = 0; i < argc; i++) {
6892                 switch (op) {
6893                 case LFS_PROJECT_CHECK:
6894                         err = lfs_project_check(argv[i], &phc);
6895                         break;
6896                 case LFS_PROJECT_LIST:
6897                         err = lfs_project_list(argv[i], &phc);
6898                         break;
6899                 case LFS_PROJECT_CLEAR:
6900                         err = lfs_project_clear(argv[i], &phc);
6901                         break;
6902                 case LFS_PROJECT_SET:
6903                         err = lfs_project_set(argv[i], &phc);
6904                         break;
6905                 default:
6906                         break;
6907                 }
6908                 if (err && !ret)
6909                         ret = err;
6910         }
6911
6912         return ret;
6913 }
6914
6915 static int lfs_quota(int argc, char **argv)
6916 {
6917         int c;
6918         char *mnt, *name = NULL;
6919         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
6920                                     .qc_type = ALLQUOTA };
6921         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
6922         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
6923         char *endptr;
6924         __u32 valid = QC_GENERAL, idx = 0;
6925         bool human_readable = false;
6926         bool show_default = false;
6927         int qtype;
6928
6929         while ((c = getopt(argc, argv, "gGi:I:o:pPqtuUvh")) != -1) {
6930                 switch (c) {
6931                 case 'U':
6932                         show_default = true;
6933                 case 'u':
6934                         qtype = USRQUOTA;
6935                         goto quota_type;
6936                 case 'G':
6937                         show_default = true;
6938                 case 'g':
6939                         qtype = GRPQUOTA;
6940                         goto quota_type;
6941                 case 'P':
6942                         show_default = true;
6943                 case 'p':
6944                         qtype = PRJQUOTA;
6945 quota_type:
6946                         if (qctl.qc_type != ALLQUOTA) {
6947                                 fprintf(stderr,
6948                                         "%s quota: only one of -u, -g, or -p may be specified\n",
6949                                         progname);
6950                                 return CMD_HELP;
6951                         }
6952                         qctl.qc_type = qtype;
6953                         break;
6954                 case 't':
6955                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
6956                         break;
6957                 case 'o':
6958                         valid = qctl.qc_valid = QC_UUID;
6959                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
6960                         break;
6961                 case 'i':
6962                         valid = qctl.qc_valid = QC_MDTIDX;
6963                         idx = qctl.qc_idx = atoi(optarg);
6964                         if (idx == 0 && *optarg != '0') {
6965                                 fprintf(stderr,
6966                                         "%s quota: invalid MDT index '%s'\n",
6967                                         progname, optarg);
6968                                 return CMD_HELP;
6969                         }
6970                         break;
6971                 case 'I':
6972                         valid = qctl.qc_valid = QC_OSTIDX;
6973                         idx = qctl.qc_idx = atoi(optarg);
6974                         if (idx == 0 && *optarg != '0') {
6975                                 fprintf(stderr,
6976                                         "%s quota: invalid OST index '%s'\n",
6977                                         progname, optarg);
6978                                 return CMD_HELP;
6979                         }
6980                         break;
6981                 case 'v':
6982                         verbose = 1;
6983                         break;
6984                 case 'q':
6985                         quiet = 1;
6986                         break;
6987                 case 'h':
6988                         human_readable = true;
6989                         break;
6990                 default:
6991                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
6992                                 progname, argv[optind - 1]);
6993                         return CMD_HELP;
6994                 }
6995         }
6996
6997         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
6998         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
6999             optind == argc - 1 && !show_default) {
7000
7001                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
7002                 qctl.qc_valid = valid;
7003                 qctl.qc_idx = idx;
7004
7005                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
7006                         qctl.qc_type = qtype;
7007                         if (qtype == USRQUOTA) {
7008                                 qctl.qc_id = geteuid();
7009                                 rc = uid2name(&name, qctl.qc_id);
7010                         } else {
7011                                 qctl.qc_id = getegid();
7012                                 rc = gid2name(&name, qctl.qc_id);
7013                         }
7014                         if (rc)
7015                                 name = "<unknown>";
7016                         mnt = argv[optind];
7017                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
7018                                               human_readable, show_default);
7019                         if (rc1 && !rc)
7020                                 rc = rc1;
7021                 }
7022                 return rc;
7023         /* lfs quota -u username /path/to/lustre/mount */
7024         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
7025                 /* options should be followed by u/g-name and mntpoint */
7026                 if ((!show_default && optind + 2 != argc) ||
7027                     (show_default && optind + 1 != argc) ||
7028                     qctl.qc_type == ALLQUOTA) {
7029                         fprintf(stderr,
7030                                 "%s quota: name and mount point must be specified\n",
7031                                 progname);
7032                         return CMD_HELP;
7033                 }
7034
7035                 if (!show_default) {
7036                         name = argv[optind++];
7037                         switch (qctl.qc_type) {
7038                         case USRQUOTA:
7039                                 rc = name2uid(&qctl.qc_id, name);
7040                                 break;
7041                         case GRPQUOTA:
7042                                 rc = name2gid(&qctl.qc_id, name);
7043                                 break;
7044                         case PRJQUOTA:
7045                                 rc = name2projid(&qctl.qc_id, name);
7046                                 break;
7047                         default:
7048                                 rc = -ENOTSUP;
7049                                 break;
7050                         }
7051                 } else {
7052                         qctl.qc_valid = QC_GENERAL;
7053                         qctl.qc_cmd = LUSTRE_Q_GETDEFAULT;
7054                         qctl.qc_id = 0;
7055                 }
7056
7057                 if (rc) {
7058                         qctl.qc_id = strtoul(name, &endptr, 10);
7059                         if (*endptr != '\0') {
7060                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
7061                                         progname, name);
7062                                 return CMD_HELP;
7063                         }
7064                 }
7065         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
7066                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
7067                         progname);
7068                 return CMD_HELP;
7069         }
7070
7071         mnt = argv[optind];
7072         rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
7073                              human_readable, show_default);
7074         return rc;
7075 }
7076 #endif /* HAVE_SYS_QUOTA_H! */
7077
7078 static int flushctx_ioctl(char *mp)
7079 {
7080         int fd, rc;
7081
7082         fd = open(mp, O_RDONLY);
7083         if (fd == -1) {
7084                 fprintf(stderr, "flushctx: error open %s: %s\n",
7085                         mp, strerror(errno));
7086                 return -1;
7087         }
7088
7089         rc = ioctl(fd, LL_IOC_FLUSHCTX);
7090         if (rc == -1)
7091                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
7092                         mp, strerror(errno));
7093
7094         close(fd);
7095         return rc;
7096 }
7097
7098 static int lfs_flushctx(int argc, char **argv)
7099 {
7100         int     kdestroy = 0, c;
7101         char    mntdir[PATH_MAX] = {'\0'};
7102         int     index = 0;
7103         int     rc = 0;
7104
7105         while ((c = getopt(argc, argv, "k")) != -1) {
7106                 switch (c) {
7107                 case 'k':
7108                         kdestroy = 1;
7109                         break;
7110                 default:
7111                         fprintf(stderr, "error: %s: option '-%c' "
7112                                         "unrecognized\n", argv[0], c);
7113                         return CMD_HELP;
7114                 }
7115         }
7116
7117         if (kdestroy) {
7118             if ((rc = system("kdestroy > /dev/null")) != 0) {
7119                 rc = WEXITSTATUS(rc);
7120                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
7121             }
7122         }
7123
7124         if (optind >= argc) {
7125                 /* flush for all mounted lustre fs. */
7126                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
7127                         /* Check if we have a mount point */
7128                         if (mntdir[0] == '\0')
7129                                 continue;
7130
7131                         if (flushctx_ioctl(mntdir))
7132                                 rc = -1;
7133
7134                         mntdir[0] = '\0'; /* avoid matching in next loop */
7135                 }
7136         } else {
7137                 /* flush fs as specified */
7138                 while (optind < argc) {
7139                         if (flushctx_ioctl(argv[optind++]))
7140                                 rc = -1;
7141                 }
7142         }
7143         return rc;
7144 }
7145
7146 static int lfs_changelog(int argc, char **argv)
7147 {
7148         void *changelog_priv;
7149         struct changelog_rec *rec;
7150         long long startrec = 0, endrec = 0;
7151         char *mdd;
7152         struct option long_opts[] = {
7153                 { .val = 'f', .name = "follow", .has_arg = no_argument },
7154                 { .name = NULL } };
7155         char short_opts[] = "f";
7156         int rc, follow = 0;
7157
7158         while ((rc = getopt_long(argc, argv, short_opts,
7159                 long_opts, NULL)) != -1) {
7160                 switch (rc) {
7161                 case 'f':
7162                         follow++;
7163                         break;
7164                 default:
7165                         fprintf(stderr,
7166                                 "%s changelog: unrecognized option '%s'\n",
7167                                 progname, argv[optind - 1]);
7168                         return CMD_HELP;
7169                 }
7170         }
7171         if (optind >= argc) {
7172                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
7173                         progname);
7174                 return CMD_HELP;
7175         }
7176
7177         mdd = argv[optind++];
7178         if (argc > optind)
7179                 startrec = strtoll(argv[optind++], NULL, 10);
7180         if (argc > optind)
7181                 endrec = strtoll(argv[optind++], NULL, 10);
7182
7183         rc = llapi_changelog_start(&changelog_priv,
7184                                    CHANGELOG_FLAG_BLOCK |
7185                                    CHANGELOG_FLAG_JOBID |
7186                                    CHANGELOG_FLAG_EXTRA_FLAGS |
7187                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
7188                                    mdd, startrec);
7189         if (rc < 0) {
7190                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
7191                         progname, strerror(errno = -rc));
7192                 return rc;
7193         }
7194
7195         rc = llapi_changelog_set_xflags(changelog_priv,
7196                                         CHANGELOG_EXTRA_FLAG_UIDGID |
7197                                         CHANGELOG_EXTRA_FLAG_NID |
7198                                         CHANGELOG_EXTRA_FLAG_OMODE |
7199                                         CHANGELOG_EXTRA_FLAG_XATTR);
7200         if (rc < 0) {
7201                 fprintf(stderr,
7202                         "%s changelog: cannot set xflags for changelog: %s\n",
7203                         progname, strerror(errno = -rc));
7204                 return rc;
7205         }
7206
7207         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
7208                 time_t secs;
7209                 struct tm ts;
7210
7211                 if (endrec && rec->cr_index > endrec) {
7212                         llapi_changelog_free(&rec);
7213                         break;
7214                 }
7215                 if (rec->cr_index < startrec) {
7216                         llapi_changelog_free(&rec);
7217                         continue;
7218                 }
7219
7220                 secs = rec->cr_time >> 30;
7221                 gmtime_r(&secs, &ts);
7222                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
7223                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
7224                        changelog_type2str(rec->cr_type),
7225                        ts.tm_hour, ts.tm_min, ts.tm_sec,
7226                        (int)(rec->cr_time & ((1 << 30) - 1)),
7227                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
7228                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
7229
7230                 if (rec->cr_flags & CLF_JOBID) {
7231                         struct changelog_ext_jobid *jid =
7232                                 changelog_rec_jobid(rec);
7233
7234                         if (jid->cr_jobid[0] != '\0')
7235                                 printf(" j=%s", jid->cr_jobid);
7236                 }
7237
7238                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
7239                         struct changelog_ext_extra_flags *ef =
7240                                 changelog_rec_extra_flags(rec);
7241
7242                         printf(" ef=0x%llx", ef->cr_extra_flags);
7243
7244                         if (ef->cr_extra_flags & CLFE_UIDGID) {
7245                                 struct changelog_ext_uidgid *uidgid =
7246                                         changelog_rec_uidgid(rec);
7247
7248                                 printf(" u=%llu:%llu",
7249                                        uidgid->cr_uid, uidgid->cr_gid);
7250                         }
7251                         if (ef->cr_extra_flags & CLFE_NID) {
7252                                 struct changelog_ext_nid *nid =
7253                                         changelog_rec_nid(rec);
7254
7255                                 printf(" nid=%s",
7256                                        libcfs_nid2str(nid->cr_nid));
7257                         }
7258
7259                         if (ef->cr_extra_flags & CLFE_OPEN) {
7260                                 struct changelog_ext_openmode *omd =
7261                                         changelog_rec_openmode(rec);
7262                                 char mode[] = "---";
7263
7264                                 /* exec mode must be exclusive */
7265                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
7266                                         mode[2] = 'x';
7267                                 } else {
7268                                         if (omd->cr_openflags & MDS_FMODE_READ)
7269                                                 mode[0] = 'r';
7270                                         if (omd->cr_openflags &
7271                                             (MDS_FMODE_WRITE |
7272                                              MDS_OPEN_TRUNC |
7273                                              MDS_OPEN_APPEND))
7274                                                 mode[1] = 'w';
7275                                 }
7276
7277                                 if (strcmp(mode, "---") != 0)
7278                                         printf(" m=%s", mode);
7279
7280                         }
7281
7282                         if (ef->cr_extra_flags & CLFE_XATTR) {
7283                                 struct changelog_ext_xattr *xattr =
7284                                         changelog_rec_xattr(rec);
7285
7286                                 if (xattr->cr_xattr[0] != '\0')
7287                                         printf(" x=%s", xattr->cr_xattr);
7288                         }
7289                 }
7290
7291                 if (rec->cr_namelen)
7292                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
7293                                rec->cr_namelen, changelog_rec_name(rec));
7294
7295                 if (rec->cr_flags & CLF_RENAME) {
7296                         struct changelog_ext_rename *rnm =
7297                                 changelog_rec_rename(rec);
7298
7299                         if (!fid_is_zero(&rnm->cr_sfid))
7300                                 printf(" s="DFID" sp="DFID" %.*s",
7301                                        PFID(&rnm->cr_sfid),
7302                                        PFID(&rnm->cr_spfid),
7303                                        (int)changelog_rec_snamelen(rec),
7304                                        changelog_rec_sname(rec));
7305                 }
7306                 printf("\n");
7307
7308                 llapi_changelog_free(&rec);
7309         }
7310
7311         llapi_changelog_fini(&changelog_priv);
7312
7313         if (rc < 0)
7314                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
7315                         progname, strerror(errno = -rc));
7316
7317         return (rc == 1 ? 0 : rc);
7318 }
7319
7320 static int lfs_changelog_clear(int argc, char **argv)
7321 {
7322         long long endrec;
7323         int rc;
7324
7325         if (argc != 4)
7326                 return CMD_HELP;
7327
7328         endrec = strtoll(argv[3], NULL, 10);
7329
7330         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
7331
7332         if (rc == -EINVAL)
7333                 fprintf(stderr, "%s: record out of range: %llu\n",
7334                         argv[0], endrec);
7335         else if (rc == -ENOENT)
7336                 fprintf(stderr, "%s: no changelog user: %s\n",
7337                         argv[0], argv[2]);
7338         else if (rc)
7339                 fprintf(stderr, "%s error: %s\n", argv[0],
7340                         strerror(-rc));
7341
7342         if (rc)
7343                 errno = -rc;
7344
7345         return rc;
7346 }
7347
7348 static int lfs_fid2path(int argc, char **argv)
7349 {
7350         struct option long_opts[] = {
7351                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
7352                 { .val = 'l',   .name = "link", .has_arg = required_argument },
7353                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
7354                 { .name = NULL } };
7355         char  short_opts[] = "cl:r:";
7356         char *device, *fid, *path;
7357         long long recno = -1;
7358         int linkno = -1;
7359         int lnktmp;
7360         int printcur = 0;
7361         int rc = 0;
7362         char *endptr = NULL;
7363
7364         while ((rc = getopt_long(argc, argv, short_opts,
7365                 long_opts, NULL)) != -1) {
7366                 switch (rc) {
7367                 case 'c':
7368                         printcur++;
7369                         break;
7370                 case 'l':
7371                         linkno = strtol(optarg, &endptr, 10);
7372                         if (*endptr != '\0') {
7373                                 fprintf(stderr,
7374                                         "%s fid2path: invalid linkno '%s'\n",
7375                                         progname, optarg);
7376                                 return CMD_HELP;
7377                         }
7378                         break;
7379                 case 'r':
7380                         recno = strtoll(optarg, &endptr, 10);
7381                         if (*endptr != '\0') {
7382                                 fprintf(stderr,
7383                                         "%s fid2path: invalid recno '%s'\n",
7384                                         progname, optarg);
7385                                 return CMD_HELP;
7386                         }
7387                         break;
7388                 default:
7389                         fprintf(stderr,
7390                                 "%s fid2path: unrecognized option '%s'\n",
7391                                 progname, argv[optind - 1]);
7392                         return CMD_HELP;
7393                 }
7394         }
7395
7396         if (argc < 3) {
7397                 fprintf(stderr,
7398                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
7399                         progname);
7400                 return CMD_HELP;
7401         }
7402
7403         device = argv[optind++];
7404         path = calloc(1, PATH_MAX);
7405         if (path == NULL) {
7406                 rc = -errno;
7407                 fprintf(stderr,
7408                         "%s fid2path: cannot allocate memory for path: %s\n",
7409                         progname, strerror(-rc));
7410                 return rc;
7411         }
7412
7413         rc = 0;
7414         while (optind < argc) {
7415                 fid = argv[optind++];
7416
7417                 lnktmp = (linkno >= 0) ? linkno : 0;
7418                 while (1) {
7419                         int oldtmp = lnktmp;
7420                         long long rectmp = recno;
7421                         int rc2;
7422                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
7423                                              &rectmp, &lnktmp);
7424                         if (rc2 < 0) {
7425                                 fprintf(stderr,
7426                                         "%s fid2path: cannot find '%s': %s\n",
7427                                         progname, fid, strerror(errno = -rc2));
7428                                 if (rc == 0)
7429                                         rc = rc2;
7430                                 break;
7431                         }
7432
7433                         if (printcur)
7434                                 fprintf(stdout, "%lld ", rectmp);
7435                         if (device[0] == '/') {
7436                                 fprintf(stdout, "%s", device);
7437                                 if (device[strlen(device) - 1] != '/')
7438                                         fprintf(stdout, "/");
7439                         } else if (path[0] == '\0') {
7440                                 fprintf(stdout, "/");
7441                         }
7442                         fprintf(stdout, "%s\n", path);
7443
7444                         if (linkno >= 0)
7445                                 /* specified linkno */
7446                                 break;
7447                         if (oldtmp == lnktmp)
7448                                 /* no more links */
7449                                 break;
7450                 }
7451         }
7452
7453         free(path);
7454         return rc;
7455 }
7456
7457 static int lfs_path2fid(int argc, char **argv)
7458 {
7459         struct option long_opts[] = {
7460                 { .val = 'p', .name = "parents", .has_arg = no_argument },
7461                 { .name = NULL } };
7462         char            **path;
7463         const char        short_opts[] = "p";
7464         const char       *sep = "";
7465         struct lu_fid     fid;
7466         int               rc = 0;
7467         bool              show_parents = false;
7468
7469         while ((rc = getopt_long(argc, argv, short_opts,
7470                                  long_opts, NULL)) != -1) {
7471                 switch (rc) {
7472                 case 'p':
7473                         show_parents = true;
7474                         break;
7475                 default:
7476                         fprintf(stderr,
7477                                 "%s path2fid: unrecognized option '%s'\n",
7478                                 progname, argv[optind - 1]);
7479                         return CMD_HELP;
7480                 }
7481         }
7482
7483         if (optind > argc - 1) {
7484                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
7485                         progname);
7486                 return CMD_HELP;
7487         }
7488         else if (optind < argc - 1)
7489                 sep = ": ";
7490
7491         rc = 0;
7492         for (path = argv + optind; *path != NULL; path++) {
7493                 int err = 0;
7494                 if (!show_parents) {
7495                         err = llapi_path2fid(*path, &fid);
7496                         if (!err)
7497                                 printf("%s%s"DFID"\n",
7498                                        *sep != '\0' ? *path : "", sep,
7499                                        PFID(&fid));
7500                 } else {
7501                         char            name[NAME_MAX + 1];
7502                         unsigned int    linkno = 0;
7503
7504                         while ((err = llapi_path2parent(*path, linkno, &fid,
7505                                                 name, sizeof(name))) == 0) {
7506                                 if (*sep != '\0' && linkno == 0)
7507                                         printf("%s%s", *path, sep);
7508
7509                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
7510                                        PFID(&fid), name);
7511                                 linkno++;
7512                         }
7513
7514                         /* err == -ENODATA is end-of-loop */
7515                         if (linkno > 0 && err == -ENODATA) {
7516                                 printf("\n");
7517                                 err = 0;
7518                         }
7519                 }
7520
7521                 if (err) {
7522                         fprintf(stderr,
7523                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
7524                                 progname, show_parents ? "parent " : "", *path,
7525                                 strerror(-err));
7526                         if (rc == 0) {
7527                                 rc = err;
7528                                 errno = -err;
7529                         }
7530                 }
7531         }
7532
7533         return rc;
7534 }
7535
7536 static int lfs_data_version(int argc, char **argv)
7537 {
7538         char *path;
7539         __u64 data_version;
7540         int fd;
7541         int rc;
7542         int c;
7543         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
7544
7545         if (argc < 2) {
7546                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7547                         progname);
7548                 return CMD_HELP;
7549         }
7550
7551         while ((c = getopt(argc, argv, "nrw")) != -1) {
7552                 switch (c) {
7553                 case 'n':
7554                         data_version_flags = 0;
7555                         break;
7556                 case 'r':
7557                         data_version_flags |= LL_DV_RD_FLUSH;
7558                         break;
7559                 case 'w':
7560                         data_version_flags |= LL_DV_WR_FLUSH;
7561                         break;
7562                 default:
7563                         fprintf(stderr,
7564                                 "%s data_version: unrecognized option '%s'\n",
7565                                 progname, argv[optind - 1]);
7566                         return CMD_HELP;
7567                 }
7568         }
7569         if (optind == argc) {
7570                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7571                         progname);
7572                 return CMD_HELP;
7573         }
7574
7575         path = argv[optind];
7576         fd = open(path, O_RDONLY);
7577         if (fd < 0) {
7578                 rc = -errno;
7579                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
7580                         progname, path, strerror(-rc));
7581                 return rc;
7582         }
7583
7584         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
7585         if (rc < 0)
7586                 fprintf(stderr,
7587                         "%s data_version: cannot get version for '%s': %s\n",
7588                         progname, path, strerror(-rc));
7589         else
7590                 printf("%ju" "\n", (uintmax_t)data_version);
7591
7592         close(fd);
7593         return rc;
7594 }
7595
7596 static int lfs_hsm_state(int argc, char **argv)
7597 {
7598         int rc;
7599         int i = 1;
7600         char *path;
7601         struct hsm_user_state hus;
7602
7603         if (argc < 2)
7604                 return CMD_HELP;
7605
7606         do {
7607                 path = argv[i];
7608
7609                 rc = llapi_hsm_state_get(path, &hus);
7610                 if (rc) {
7611                         fprintf(stderr, "can't get hsm state for %s: %s\n",
7612                                 path, strerror(errno = -rc));
7613                         return rc;
7614                 }
7615
7616                 /* Display path name and status flags */
7617                 printf("%s: (0x%08x)", path, hus.hus_states);
7618
7619                 if (hus.hus_states & HS_RELEASED)
7620                         printf(" released");
7621                 if (hus.hus_states & HS_EXISTS)
7622                         printf(" exists");
7623                 if (hus.hus_states & HS_DIRTY)
7624                         printf(" dirty");
7625                 if (hus.hus_states & HS_ARCHIVED)
7626                         printf(" archived");
7627                 /* Display user-settable flags */
7628                 if (hus.hus_states & HS_NORELEASE)
7629                         printf(" never_release");
7630                 if (hus.hus_states & HS_NOARCHIVE)
7631                         printf(" never_archive");
7632                 if (hus.hus_states & HS_LOST)
7633                         printf(" lost_from_hsm");
7634
7635                 if (hus.hus_archive_id != 0)
7636                         printf(", archive_id:%d", hus.hus_archive_id);
7637                 printf("\n");
7638
7639         } while (++i < argc);
7640
7641         return 0;
7642 }
7643
7644 #define LFS_HSM_SET   0
7645 #define LFS_HSM_CLEAR 1
7646
7647 /**
7648  * Generic function to set or clear HSM flags.
7649  * Used by hsm_set and hsm_clear.
7650  *
7651  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
7652  */
7653 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
7654 {
7655         struct option long_opts[] = {
7656         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
7657         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
7658         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
7659         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
7660         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
7661         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
7662         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
7663         { .name = NULL } };
7664         char short_opts[] = "lraAdei:";
7665         __u64 mask = 0;
7666         int c, rc;
7667         char *path;
7668         __u32 archive_id = 0;
7669         char *end = NULL;
7670
7671         if (argc < 3)
7672                 return CMD_HELP;
7673
7674         while ((c = getopt_long(argc, argv, short_opts,
7675                                 long_opts, NULL)) != -1) {
7676                 switch (c) {
7677                 case 'l':
7678                         mask |= HS_LOST;
7679                         break;
7680                 case 'a':
7681                         mask |= HS_NOARCHIVE;
7682                         break;
7683                 case 'A':
7684                         mask |= HS_ARCHIVED;
7685                         break;
7686                 case 'r':
7687                         mask |= HS_NORELEASE;
7688                         break;
7689                 case 'd':
7690                         mask |= HS_DIRTY;
7691                         break;
7692                 case 'e':
7693                         mask |= HS_EXISTS;
7694                         break;
7695                 case 'i':
7696                         archive_id = strtol(optarg, &end, 10);
7697                         if (*end != '\0') {
7698                                 fprintf(stderr, "invalid archive_id: '%s'\n",
7699                                         end);
7700                                 return CMD_HELP;
7701                         }
7702                         break;
7703                 case '?':
7704                         return CMD_HELP;
7705                 default:
7706                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7707                                 argv[0], argv[optind - 1]);
7708                         return CMD_HELP;
7709                 }
7710         }
7711
7712         /* User should have specified a flag */
7713         if (mask == 0)
7714                 return CMD_HELP;
7715
7716         while (optind < argc) {
7717
7718                 path = argv[optind];
7719
7720                 /* If mode == 0, this means we apply the mask. */
7721                 if (mode == LFS_HSM_SET)
7722                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
7723                 else
7724                         rc = llapi_hsm_state_set(path, 0, mask, 0);
7725
7726                 if (rc != 0) {
7727                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
7728                                 path, strerror(errno = -rc));
7729                         return rc;
7730                 }
7731                 optind++;
7732         }
7733
7734         return 0;
7735 }
7736
7737 static int lfs_hsm_action(int argc, char **argv)
7738 {
7739         int                              rc;
7740         int                              i = 1;
7741         char                            *path;
7742         struct hsm_current_action        hca;
7743         struct hsm_extent                he;
7744         enum hsm_user_action             hua;
7745         enum hsm_progress_states         hps;
7746
7747         if (argc < 2)
7748                 return CMD_HELP;
7749
7750         do {
7751                 path = argv[i];
7752
7753                 rc = llapi_hsm_current_action(path, &hca);
7754                 if (rc) {
7755                         fprintf(stderr, "can't get hsm action for %s: %s\n",
7756                                 path, strerror(errno = -rc));
7757                         return rc;
7758                 }
7759                 he = hca.hca_location;
7760                 hua = hca.hca_action;
7761                 hps = hca.hca_state;
7762
7763                 printf("%s: %s", path, hsm_user_action2name(hua));
7764
7765                 /* Skip file without action */
7766                 if (hca.hca_action == HUA_NONE) {
7767                         printf("\n");
7768                         continue;
7769                 }
7770
7771                 printf(" %s ", hsm_progress_state2name(hps));
7772
7773                 if ((hps == HPS_RUNNING) &&
7774                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
7775                         printf("(%llu bytes moved)\n",
7776                                (unsigned long long)he.length);
7777                 else if ((he.offset + he.length) == LUSTRE_EOF)
7778                         printf("(from %llu to EOF)\n",
7779                                (unsigned long long)he.offset);
7780                 else
7781                         printf("(from %llu to %llu)\n",
7782                                (unsigned long long)he.offset,
7783                                (unsigned long long)(he.offset + he.length));
7784
7785         } while (++i < argc);
7786
7787         return 0;
7788 }
7789
7790 static int lfs_hsm_set(int argc, char **argv)
7791 {
7792         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
7793 }
7794
7795 static int lfs_hsm_clear(int argc, char **argv)
7796 {
7797         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
7798 }
7799
7800 /**
7801  * Check file state and return its fid, to be used by lfs_hsm_request().
7802  *
7803  * \param[in]     file      Path to file to check
7804  * \param[in,out] fid       Pointer to allocated lu_fid struct.
7805  * \param[in,out] last_dev  Pointer to last device id used.
7806  *
7807  * \return 0 on success.
7808  */
7809 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
7810                                 dev_t *last_dev)
7811 {
7812         struct stat     st;
7813         int             rc;
7814
7815         rc = lstat(file, &st);
7816         if (rc) {
7817                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
7818                 return -errno;
7819         }
7820         /* Checking for regular file as archiving as posix copytool
7821          * rejects archiving files other than regular files
7822          */
7823         if (!S_ISREG(st.st_mode)) {
7824                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
7825                 return CMD_HELP;
7826         }
7827         /* A request should be ... */
7828         if (*last_dev != st.st_dev && *last_dev != 0) {
7829                 fprintf(stderr, "All files should be "
7830                         "on the same filesystem: %s\n", file);
7831                 return -EINVAL;
7832         }
7833         *last_dev = st.st_dev;
7834
7835         rc = llapi_path2fid(file, fid);
7836         if (rc) {
7837                 fprintf(stderr, "Cannot read FID of %s: %s\n",
7838                         file, strerror(-rc));
7839                 return rc;
7840         }
7841         return 0;
7842 }
7843
7844 /* Fill an HSM HUR item with a given file name.
7845  *
7846  * If mntpath is set, then the filename is actually a FID, and no
7847  * lookup on the filesystem will be performed.
7848  *
7849  * \param[in]  hur         the user request to fill
7850  * \param[in]  idx         index of the item inside the HUR to fill
7851  * \param[in]  mntpath     mountpoint of Lustre
7852  * \param[in]  fname       filename (if mtnpath is NULL)
7853  *                         or FID (if mntpath is set)
7854  * \param[in]  last_dev    pointer to last device id used
7855  *
7856  * \retval 0 on success
7857  * \retval CMD_HELP or a negative errno on error
7858  */
7859 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
7860                          const char *mntpath, const char *fname,
7861                          dev_t *last_dev)
7862 {
7863         struct hsm_user_item *hui = &hur->hur_user_item[idx];
7864         int rc;
7865
7866         hui->hui_extent.length = -1;
7867
7868         if (mntpath != NULL) {
7869                 if (*fname == '[')
7870                         fname++;
7871                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
7872                 if (rc == 3) {
7873                         rc = 0;
7874                 } else {
7875                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
7876                                 fname);
7877                         rc = -EINVAL;
7878                 }
7879         } else {
7880                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
7881         }
7882
7883         if (rc == 0)
7884                 hur->hur_request.hr_itemcount++;
7885
7886         return rc;
7887 }
7888
7889 static int lfs_hsm_request(int argc, char **argv, int action)
7890 {
7891         struct option long_opts[] = {
7892         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
7893         { .val = 'D',   .name = "data",         .has_arg = required_argument },
7894         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
7895         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
7896         { .name = NULL } };
7897         dev_t                    last_dev = 0;
7898         char                     short_opts[] = "l:D:a:m:";
7899         struct hsm_user_request *hur, *oldhur;
7900         int                      c, i;
7901         size_t                   len;
7902         int                      nbfile;
7903         char                    *line = NULL;
7904         char                    *filelist = NULL;
7905         char                     fullpath[PATH_MAX];
7906         char                    *opaque = NULL;
7907         int                      opaque_len = 0;
7908         int                      archive_id = 0;
7909         FILE                    *fp;
7910         int                      nbfile_alloc = 0;
7911         char                    *some_file = NULL;
7912         char                    *mntpath = NULL;
7913         int                      rc;
7914
7915         if (argc < 2)
7916                 return CMD_HELP;
7917
7918         while ((c = getopt_long(argc, argv, short_opts,
7919                                 long_opts, NULL)) != -1) {
7920                 switch (c) {
7921                 case 'l':
7922                         filelist = optarg;
7923                         break;
7924                 case 'D':
7925                         opaque = optarg;
7926                         break;
7927                 case 'a':
7928                         if (action != HUA_ARCHIVE &&
7929                             action != HUA_REMOVE) {
7930                                 fprintf(stderr,
7931                                         "error: -a is supported only "
7932                                         "when archiving or removing\n");
7933                                 return CMD_HELP;
7934                         }
7935                         archive_id = atoi(optarg);
7936                         break;
7937                 case 'm':
7938                         if (some_file == NULL) {
7939                                 mntpath = optarg;
7940                                 some_file = strdup(optarg);
7941                         }
7942                         break;
7943                 case '?':
7944                         return CMD_HELP;
7945                 default:
7946                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7947                                 argv[0], argv[optind - 1]);
7948                         return CMD_HELP;
7949                 }
7950         }
7951
7952         /* All remaining args are files, so we have at least nbfile */
7953         nbfile = argc - optind;
7954
7955         if ((nbfile == 0) && (filelist == NULL))
7956                 return CMD_HELP;
7957
7958         if (opaque != NULL)
7959                 opaque_len = strlen(opaque);
7960
7961         /* Alloc the request structure with enough place to store all files
7962          * from command line. */
7963         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
7964         if (hur == NULL) {
7965                 fprintf(stderr, "Cannot create the request: %s\n",
7966                         strerror(errno));
7967                 return errno;
7968         }
7969         nbfile_alloc = nbfile;
7970
7971         hur->hur_request.hr_action = action;
7972         hur->hur_request.hr_archive_id = archive_id;
7973         hur->hur_request.hr_flags = 0;
7974
7975         /* All remaining args are files, add them */
7976         if (nbfile != 0 && some_file == NULL)
7977                 some_file = strdup(argv[optind]);
7978
7979         for (i = 0; i < nbfile; i++) {
7980                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
7981                                    &last_dev);
7982                 if (rc)
7983                         goto out_free;
7984         }
7985
7986         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
7987
7988         /* If a filelist was specified, read the filelist from it. */
7989         if (filelist != NULL) {
7990                 fp = fopen(filelist, "r");
7991                 if (fp == NULL) {
7992                         fprintf(stderr, "Cannot read the file list %s: %s\n",
7993                                 filelist, strerror(errno));
7994                         rc = -errno;
7995                         goto out_free;
7996                 }
7997
7998                 while ((rc = getline(&line, &len, fp)) != -1) {
7999                         /* If allocated buffer was too small, get something
8000                          * larger */
8001                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
8002                                 ssize_t size;
8003
8004                                 nbfile_alloc = nbfile_alloc * 2 + 1;
8005                                 oldhur = hur;
8006                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
8007                                                                    opaque_len);
8008                                 if (hur == NULL) {
8009                                         fprintf(stderr, "hsm: cannot allocate "
8010                                                 "the request: %s\n",
8011                                                 strerror(errno));
8012                                         hur = oldhur;
8013                                         rc = -errno;
8014                                         fclose(fp);
8015                                         goto out_free;
8016                                 }
8017                                 size = hur_len(oldhur);
8018                                 if (size < 0) {
8019                                         fprintf(stderr, "hsm: cannot allocate "
8020                                                 "%u files + %u bytes data\n",
8021                                             oldhur->hur_request.hr_itemcount,
8022                                             oldhur->hur_request.hr_data_len);
8023                                         free(hur);
8024                                         hur = oldhur;
8025                                         rc = -E2BIG;
8026                                         fclose(fp);
8027                                         goto out_free;
8028                                 }
8029                                 memcpy(hur, oldhur, size);
8030                                 free(oldhur);
8031                         }
8032
8033                         /* Chop CR */
8034                         if (line[strlen(line) - 1] == '\n')
8035                                 line[strlen(line) - 1] = '\0';
8036
8037                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
8038                                            mntpath, line, &last_dev);
8039                         if (rc) {
8040                                 fclose(fp);
8041                                 goto out_free;
8042                         }
8043
8044                         if (some_file == NULL) {
8045                                 some_file = line;
8046                                 line = NULL;
8047                         }
8048                 }
8049
8050                 rc = fclose(fp);
8051                 free(line);
8052         }
8053
8054         /* If a --data was used, add it to the request */
8055         hur->hur_request.hr_data_len = opaque_len;
8056         if (opaque != NULL)
8057                 memcpy(hur_data(hur), opaque, opaque_len);
8058
8059         /* Send the HSM request */
8060         if (realpath(some_file, fullpath) == NULL) {
8061                 fprintf(stderr, "Could not find path '%s': %s\n",
8062                         some_file, strerror(errno));
8063         }
8064         rc = llapi_hsm_request(fullpath, hur);
8065         if (rc) {
8066                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
8067                         some_file, strerror(-rc));
8068                 goto out_free;
8069         }
8070
8071 out_free:
8072         free(some_file);
8073         free(hur);
8074         return rc;
8075 }
8076
8077 static int lfs_hsm_archive(int argc, char **argv)
8078 {
8079         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
8080 }
8081
8082 static int lfs_hsm_restore(int argc, char **argv)
8083 {
8084         return lfs_hsm_request(argc, argv, HUA_RESTORE);
8085 }
8086
8087 static int lfs_hsm_release(int argc, char **argv)
8088 {
8089         return lfs_hsm_request(argc, argv, HUA_RELEASE);
8090 }
8091
8092 static int lfs_hsm_remove(int argc, char **argv)
8093 {
8094         return lfs_hsm_request(argc, argv, HUA_REMOVE);
8095 }
8096
8097 static int lfs_hsm_cancel(int argc, char **argv)
8098 {
8099         return lfs_hsm_request(argc, argv, HUA_CANCEL);
8100 }
8101
8102 static int lfs_swap_layouts(int argc, char **argv)
8103 {
8104         if (argc != 3)
8105                 return CMD_HELP;
8106
8107         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
8108                                   SWAP_LAYOUTS_KEEP_MTIME |
8109                                   SWAP_LAYOUTS_KEEP_ATIME);
8110 }
8111
8112 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
8113
8114 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
8115
8116 int lfs_get_mode(const char *string)
8117 {
8118         enum lock_mode_user mode;
8119
8120         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
8121                 if (lock_mode_names[mode] == NULL)
8122                         continue;
8123                 if (strcmp(string, lock_mode_names[mode]) == 0)
8124                         return mode;
8125         }
8126
8127         return -EINVAL;
8128 }
8129
8130 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
8131 {
8132         enum lu_ladvise_type advice;
8133
8134         for (advice = 0;
8135              advice < ARRAY_SIZE(ladvise_names); advice++) {
8136                 if (ladvise_names[advice] == NULL)
8137                         continue;
8138                 if (strcmp(string, ladvise_names[advice]) == 0)
8139                         return advice;
8140         }
8141
8142         return LU_LADVISE_INVALID;
8143 }
8144
8145 static int lfs_ladvise(int argc, char **argv)
8146 {
8147         struct option long_opts[] = {
8148         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
8149         { .val = 'b',   .name = "background",   .has_arg = no_argument },
8150         { .val = 'e',   .name = "end",          .has_arg = required_argument },
8151         { .val = 'l',   .name = "length",       .has_arg = required_argument },
8152         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
8153         { .val = 's',   .name = "start",        .has_arg = required_argument },
8154         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
8155         { .name = NULL } };
8156         char                     short_opts[] = "a:be:l:m:s:u";
8157         int                      c;
8158         int                      rc = 0;
8159         const char              *path;
8160         int                      fd;
8161         struct llapi_lu_ladvise  advice;
8162         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
8163         unsigned long long       start = 0;
8164         unsigned long long       end = LUSTRE_EOF;
8165         unsigned long long       length = 0;
8166         unsigned long long       size_units;
8167         unsigned long long       flags = 0;
8168         int                      mode = 0;
8169
8170         optind = 0;
8171         while ((c = getopt_long(argc, argv, short_opts,
8172                                 long_opts, NULL)) != -1) {
8173                 switch (c) {
8174                 case 'a':
8175                         advice_type = lfs_get_ladvice(optarg);
8176                         if (advice_type == LU_LADVISE_INVALID) {
8177                                 fprintf(stderr, "%s: invalid advice type "
8178                                         "'%s'\n", argv[0], optarg);
8179                                 fprintf(stderr, "Valid types:");
8180
8181                                 for (advice_type = 0;
8182                                      advice_type < ARRAY_SIZE(ladvise_names);
8183                                      advice_type++) {
8184                                         if (ladvise_names[advice_type] == NULL)
8185                                                 continue;
8186                                         fprintf(stderr, " %s",
8187                                                 ladvise_names[advice_type]);
8188                                 }
8189                                 fprintf(stderr, "\n");
8190
8191                                 return CMD_HELP;
8192                         }
8193                         break;
8194                 case 'b':
8195                         flags |= LF_ASYNC;
8196                         break;
8197                 case 'u':
8198                         flags |= LF_UNSET;
8199                         break;
8200                 case 'e':
8201                         size_units = 1;
8202                         rc = llapi_parse_size(optarg, &end,
8203                                               &size_units, 0);
8204                         if (rc) {
8205                                 fprintf(stderr, "%s: bad end offset '%s'\n",
8206                                         argv[0], optarg);
8207                                 return CMD_HELP;
8208                         }
8209                         break;
8210                 case 's':
8211                         size_units = 1;
8212                         rc = llapi_parse_size(optarg, &start,
8213                                               &size_units, 0);
8214                         if (rc) {
8215                                 fprintf(stderr, "%s: bad start offset "
8216                                         "'%s'\n", argv[0], optarg);
8217                                 return CMD_HELP;
8218                         }
8219                         break;
8220                 case 'l':
8221                         size_units = 1;
8222                         rc = llapi_parse_size(optarg, &length,
8223                                               &size_units, 0);
8224                         if (rc) {
8225                                 fprintf(stderr, "%s: bad length '%s'\n",
8226                                         argv[0], optarg);
8227                                 return CMD_HELP;
8228                         }
8229                         break;
8230                 case 'm':
8231                         mode = lfs_get_mode(optarg);
8232                         if (mode < 0) {
8233                                 fprintf(stderr, "%s: bad mode '%s', valid "
8234                                                  "modes are READ or WRITE\n",
8235                                         argv[0], optarg);
8236                                 return CMD_HELP;
8237                         }
8238                         break;
8239                 case '?':
8240                         return CMD_HELP;
8241                 default:
8242                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8243                                 argv[0], argv[optind - 1]);
8244                         return CMD_HELP;
8245                 }
8246         }
8247
8248         if (advice_type == LU_LADVISE_INVALID) {
8249                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
8250                 fprintf(stderr, "Valid types:");
8251                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
8252                      advice_type++) {
8253                         if (ladvise_names[advice_type] == NULL)
8254                                 continue;
8255                         fprintf(stderr, " %s", ladvise_names[advice_type]);
8256                 }
8257                 fprintf(stderr, "\n");
8258                 return CMD_HELP;
8259         }
8260
8261         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
8262                 fprintf(stderr, "%s: Lock no expand advice is a per file "
8263                                  "descriptor advice, so when called from lfs, "
8264                                  "it does nothing.\n", argv[0]);
8265                 return CMD_HELP;
8266         }
8267
8268         if (argc <= optind) {
8269                 fprintf(stderr, "%s: please give one or more file names\n",
8270                         argv[0]);
8271                 return CMD_HELP;
8272         }
8273
8274         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
8275                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
8276                         argv[0]);
8277                 return CMD_HELP;
8278         }
8279
8280         if (end == LUSTRE_EOF && length != 0)
8281                 end = start + length;
8282
8283         if (end <= start) {
8284                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
8285                         argv[0], start, end);
8286                 return CMD_HELP;
8287         }
8288
8289         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
8290                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
8291                         argv[0]);
8292                 return CMD_HELP;
8293         }
8294
8295         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
8296                 fprintf(stderr, "%s: mode is required with lockahead\n",
8297                         argv[0]);
8298                 return CMD_HELP;
8299         }
8300
8301         while (optind < argc) {
8302                 int rc2;
8303
8304                 path = argv[optind++];
8305
8306                 fd = open(path, O_RDONLY);
8307                 if (fd < 0) {
8308                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8309                                 argv[0], path, strerror(errno));
8310                         rc2 = -errno;
8311                         goto next;
8312                 }
8313
8314                 advice.lla_start = start;
8315                 advice.lla_end = end;
8316                 advice.lla_advice = advice_type;
8317                 advice.lla_value1 = 0;
8318                 advice.lla_value2 = 0;
8319                 advice.lla_value3 = 0;
8320                 advice.lla_value4 = 0;
8321                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
8322                         advice.lla_lockahead_mode = mode;
8323                         advice.lla_peradvice_flags = flags;
8324                 }
8325
8326                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
8327                 close(fd);
8328                 if (rc2 < 0) {
8329                         fprintf(stderr, "%s: cannot give advice '%s' to file "
8330                                 "'%s': %s\n", argv[0],
8331                                 ladvise_names[advice_type],
8332                                 path, strerror(errno));
8333
8334                         goto next;
8335                 }
8336
8337 next:
8338                 if (rc == 0 && rc2 < 0)
8339                         rc = rc2;
8340         }
8341         return rc;
8342 }
8343
8344 static const char *const heat_names[] = LU_HEAT_NAMES;
8345
8346 static int lfs_heat_get(int argc, char **argv)
8347 {
8348         struct lu_heat *heat;
8349         int rc = 0, rc2;
8350         char *path;
8351         int fd;
8352         int i;
8353
8354         if (argc <= 1)
8355                 return CMD_HELP;
8356
8357         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
8358         if (!heat) {
8359                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
8360                 return -ENOMEM;
8361         }
8362
8363         optind = 1;
8364         while (optind < argc) {
8365                 path = argv[optind++];
8366
8367                 fd = open(path, O_RDONLY);
8368                 if (fd < 0) {
8369                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8370                                 argv[0], path, strerror(errno));
8371                         rc2 = -errno;
8372                         goto next;
8373                 }
8374
8375                 heat->lh_count = OBD_HEAT_COUNT;
8376                 rc2 = llapi_heat_get(fd, heat);
8377                 close(fd);
8378                 if (rc2 < 0) {
8379                         fprintf(stderr, "%s: cannot get heat of file '%s'"
8380                                 ": %s\n", argv[0], path, strerror(errno));
8381                         goto next;
8382                 }
8383
8384                 printf("flags: %x\n", heat->lh_flags);
8385                 for (i = 0; i < heat->lh_count; i++)
8386                         printf("%s: %llu\n", heat_names[i], heat->lh_heat[i]);
8387 next:
8388                 if (rc == 0 && rc2 < 0)
8389                         rc = rc2;
8390         }
8391
8392         free(heat);
8393         return rc;
8394 }
8395
8396 static int lfs_heat_set(int argc, char **argv)
8397 {
8398         struct option long_opts[] = {
8399         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
8400         { .val = 'o',   .name = "off",          .has_arg = no_argument },
8401         { .val = 'O',   .name = "on",           .has_arg = no_argument },
8402         { .name = NULL } };
8403         enum lu_heat_flag flags = 0;
8404         int rc = 0, rc2;
8405         char *path;
8406         int fd;
8407         int c;
8408
8409         if (argc <= 1)
8410                 return CMD_HELP;
8411
8412         optind = 0;
8413         while ((c = getopt_long(argc, argv, "coO", long_opts, NULL)) != -1) {
8414                 switch (c) {
8415                 case 'c':
8416                         flags |= LU_HEAT_FLAG_CLEAR;
8417                         break;
8418                 case 'o':
8419                         flags |= LU_HEAT_FLAG_CLEAR;
8420                         flags |= LU_HEAT_FLAG_OFF;
8421                         break;
8422                 case 'O':
8423                         flags &= ~LU_HEAT_FLAG_OFF;
8424                         break;
8425                 case '?':
8426                         return CMD_HELP;
8427                 default:
8428                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8429                                 argv[0], argv[optind - 1]);
8430                         return CMD_HELP;
8431                 }
8432         }
8433
8434         if (argc <= optind) {
8435                 fprintf(stderr, "%s: please give one or more file names\n",
8436                         argv[0]);
8437                 return CMD_HELP;
8438         }
8439
8440         while (optind < argc) {
8441                 path = argv[optind++];
8442
8443                 fd = open(path, O_RDONLY);
8444                 if (fd < 0) {
8445                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8446                                 argv[0], path, strerror(errno));
8447                         rc2 = -errno;
8448                         goto next;
8449                 }
8450
8451                 rc2 = llapi_heat_set(fd, flags);
8452                 close(fd);
8453                 if (rc2 < 0) {
8454                         fprintf(stderr, "%s: cannot setflags heat of file '%s'"
8455                                 ": %s\n", argv[0], path, strerror(errno));
8456                         goto next;
8457                 }
8458 next:
8459                 if (rc == 0 && rc2 < 0)
8460                         rc = rc2;
8461         }
8462         return rc;
8463 }
8464
8465 /** The input string contains a comma delimited list of component ids and
8466  * ranges, for example "1,2-4,7".
8467  */
8468 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
8469 {
8470         bool end_of_loop = false;
8471         char *ptr = NULL;
8472         int nr = 0;
8473         int rc;
8474
8475         if (arg == NULL)
8476                 return -EINVAL;
8477
8478         while (!end_of_loop) {
8479                 int start_index;
8480                 int end_index;
8481                 int i;
8482                 char *endptr = NULL;
8483
8484                 rc = -EINVAL;
8485                 ptr = strchrnul(arg, ',');
8486                 end_of_loop = *ptr == '\0';
8487                 *ptr = '\0';
8488
8489                 start_index = strtol(arg, &endptr, 0);
8490                 if (endptr == arg) /* no data at all */
8491                         break;
8492                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
8493                         break;
8494                 if (start_index < 0)
8495                         break;
8496
8497                 end_index = start_index;
8498                 if (*endptr == '-') {
8499                         end_index = strtol(endptr + 1, &endptr, 0);
8500                         if (*endptr != '\0')
8501                                 break;
8502                         if (end_index < start_index)
8503                                 break;
8504                 }
8505
8506                 for (i = start_index; i <= end_index && size > 0; i++) {
8507                         int j;
8508
8509                         /* remove duplicate */
8510                         for (j = 0; j < nr; j++) {
8511                                 if (ids[j] == i)
8512                                         break;
8513                         }
8514                         if (j == nr) { /* no duplicate */
8515                                 ids[nr++] = i;
8516                                 --size;
8517                         }
8518                 }
8519
8520                 if (size == 0 && i < end_index)
8521                         break;
8522
8523                 *ptr = ',';
8524                 arg = ++ptr;
8525                 rc = 0;
8526         }
8527         if (!end_of_loop && ptr != NULL)
8528                 *ptr = ',';
8529
8530         return rc < 0 ? rc : nr;
8531 }
8532
8533 /**
8534  * struct verify_mirror_id - Mirror id to be verified.
8535  * @mirror_id:   A specified mirror id.
8536  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
8537  */
8538 struct verify_mirror_id {
8539         __u16 mirror_id;
8540         bool is_valid_id;
8541 };
8542
8543 /**
8544  * compare_mirror_ids() - Compare mirror ids.
8545  * @layout: Mirror component list.
8546  * @cbdata: Callback data in verify_mirror_id structure.
8547  *
8548  * This is a callback function called by llapi_layout_comp_iterate()
8549  * to compare the specified mirror id with the one in the current
8550  * component of @layout. If they are the same, then the specified
8551  * mirror id is valid.
8552  *
8553  * Return: a negative error code on failure or
8554  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
8555  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
8556  */
8557 static inline
8558 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
8559 {
8560         struct verify_mirror_id *mirror_id_cbdata =
8561                                  (struct verify_mirror_id *)cbdata;
8562         uint32_t mirror_id;
8563         int rc = 0;
8564
8565         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
8566         if (rc < 0) {
8567                 rc = -errno;
8568                 fprintf(stderr,
8569                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
8570                         progname, strerror(errno));
8571                 return rc;
8572         }
8573
8574         if (mirror_id_cbdata->mirror_id == mirror_id) {
8575                 mirror_id_cbdata->is_valid_id = true;
8576                 return LLAPI_LAYOUT_ITER_STOP;
8577         }
8578
8579         return LLAPI_LAYOUT_ITER_CONT;
8580 }
8581
8582 /**
8583  * verify_mirror_ids() - Verify specified mirror ids.
8584  * @fname:      Mirrored file name.
8585  * @mirror_ids: Specified mirror ids to be verified.
8586  * @ids_nr:     Number of specified mirror ids.
8587  *
8588  * This function verifies that specified @mirror_ids are valid
8589  * in the mirrored file @fname.
8590  *
8591  * Return: 0 on success or a negative error code on failure.
8592  */
8593 static inline
8594 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
8595 {
8596         struct llapi_layout *layout = NULL;
8597         struct verify_mirror_id mirror_id_cbdata = { 0 };
8598         struct stat stbuf;
8599         uint32_t flr_state;
8600         int i;
8601         int fd;
8602         int rc = 0;
8603         int rc2 = 0;
8604
8605         if (ids_nr <= 0)
8606                 return -EINVAL;
8607
8608         if (stat(fname, &stbuf) < 0) {
8609                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8610                         progname, fname, strerror(errno));
8611                 rc = -errno;
8612                 goto error;
8613         }
8614
8615         if (!S_ISREG(stbuf.st_mode)) {
8616                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8617                         progname, fname);
8618                 rc = -EINVAL;
8619                 goto error;
8620         }
8621
8622         fd = open(fname, O_DIRECT | O_RDONLY);
8623         if (fd < 0) {
8624                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8625                         progname, fname, strerror(errno));
8626                 rc = -errno;
8627                 goto error;
8628         }
8629
8630         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
8631         if (rc < 0) {
8632                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
8633                         progname, fname, strerror(errno));
8634                 goto close_fd;
8635         }
8636
8637         layout = llapi_layout_get_by_fd(fd, 0);
8638         if (layout == NULL) {
8639                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8640                         progname, fname, strerror(errno));
8641                 rc = -errno;
8642                 llapi_lease_release(fd);
8643                 goto close_fd;
8644         }
8645
8646         rc = llapi_layout_flags_get(layout, &flr_state);
8647         if (rc < 0) {
8648                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8649                         progname, fname, strerror(errno));
8650                 rc = -errno;
8651                 goto free_layout;
8652         }
8653
8654         flr_state &= LCM_FL_FLR_MASK;
8655         switch (flr_state) {
8656         case LCM_FL_NONE:
8657                 rc = -EINVAL;
8658                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
8659                         progname, fname, llapi_layout_flags_string(flr_state));
8660                 goto free_layout;
8661         default:
8662                 break;
8663         }
8664
8665         rc2 = 0;
8666         for (i = 0; i < ids_nr; i++) {
8667                 mirror_id_cbdata.mirror_id = mirror_ids[i];
8668                 mirror_id_cbdata.is_valid_id = false;
8669
8670                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
8671                                                &mirror_id_cbdata);
8672                 if (rc < 0) {
8673                         rc = -errno;
8674                         fprintf(stderr,
8675                                 "%s: '%s' failed to verify mirror id: %u.\n",
8676                                 progname, fname, mirror_ids[i]);
8677                         goto free_layout;
8678                 }
8679
8680                 if (!mirror_id_cbdata.is_valid_id) {
8681                         rc2 = -EINVAL;
8682                         fprintf(stderr,
8683                                 "%s: '%s' invalid specified mirror id: %u.\n",
8684                                 progname, fname, mirror_ids[i]);
8685                 }
8686         }
8687         rc = rc2;
8688
8689 free_layout:
8690         llapi_layout_free(layout);
8691         llapi_lease_release(fd);
8692 close_fd:
8693         close(fd);
8694 error:
8695         return rc;
8696 }
8697
8698 static inline
8699 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
8700                            __u16 *mirror_ids, int ids_nr)
8701 {
8702         struct llapi_resync_comp comp_array[1024] = { { 0 } };
8703         struct llapi_layout *layout;
8704         struct stat stbuf;
8705         uint32_t flr_state;
8706         uint64_t start;
8707         uint64_t end;
8708         int comp_size = 0;
8709         int idx;
8710         int fd;
8711         int rc;
8712
8713         if (stat(fname, &stbuf) < 0) {
8714                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8715                         progname, fname, strerror(errno));
8716                 rc = -errno;
8717                 goto error;
8718         }
8719         if (!S_ISREG(stbuf.st_mode)) {
8720                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8721                         progname, fname);
8722                 rc = -EINVAL;
8723                 goto error;
8724         }
8725
8726         fd = open(fname, O_DIRECT | O_RDWR);
8727         if (fd < 0) {
8728                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8729                         progname, fname, strerror(errno));
8730                 rc = -errno;
8731                 goto error;
8732         }
8733
8734         layout = llapi_layout_get_by_fd(fd, 0);
8735         if (layout == NULL) {
8736                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8737                         progname, fname, strerror(errno));
8738                 rc = -errno;
8739                 goto close_fd;
8740         }
8741
8742         rc = llapi_layout_flags_get(layout, &flr_state);
8743         if (rc) {
8744                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8745                         progname, fname, strerror(errno));
8746                 rc = -errno;
8747                 goto free_layout;
8748         }
8749
8750         flr_state &= LCM_FL_FLR_MASK;
8751         if (flr_state == LCM_FL_NONE) {
8752                 rc = -EINVAL;
8753                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
8754                         progname, fname);
8755                 goto free_layout;
8756         }
8757
8758         /* get stale component info */
8759         comp_size = llapi_mirror_find_stale(layout, comp_array,
8760                                             ARRAY_SIZE(comp_array),
8761                                             mirror_ids, ids_nr);
8762         if (comp_size <= 0) {
8763                 rc = comp_size;
8764                 goto free_layout;
8765         }
8766
8767         ioc->lil_mode = LL_LEASE_WRLCK;
8768         ioc->lil_flags = LL_LEASE_RESYNC;
8769         rc = llapi_lease_set(fd, ioc);
8770         if (rc < 0) {
8771                 if (rc == -EALREADY)
8772                         rc = 0;
8773                 else
8774                         fprintf(stderr,
8775                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
8776                                 progname, fname, strerror(errno));
8777                 goto free_layout;
8778         }
8779
8780         /* get the read range [start, end) */
8781         start = comp_array[0].lrc_start;
8782         end = comp_array[0].lrc_end;
8783         for (idx = 1; idx < comp_size; idx++) {
8784                 if (comp_array[idx].lrc_start < start)
8785                         start = comp_array[idx].lrc_start;
8786                 if (end < comp_array[idx].lrc_end)
8787                         end = comp_array[idx].lrc_end;
8788         }
8789
8790         rc = llapi_lease_check(fd);
8791         if (rc != LL_LEASE_WRLCK) {
8792                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
8793                         progname, fname);
8794                 goto free_layout;
8795         }
8796
8797         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
8798                                       start, end);
8799         if (rc < 0)
8800                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %d.\n",
8801                         progname, fname, rc);
8802
8803         /* prepare ioc for lease put */
8804         ioc->lil_mode = LL_LEASE_UNLCK;
8805         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
8806         ioc->lil_count = 0;
8807         for (idx = 0; idx < comp_size; idx++) {
8808                 if (comp_array[idx].lrc_synced) {
8809                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
8810                         ioc->lil_count++;
8811                 }
8812         }
8813
8814         rc = llapi_lease_set(fd, ioc);
8815         if (rc <= 0) {
8816                 if (rc == 0) /* lost lease lock */
8817                         rc = -EBUSY;
8818                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
8819                         progname, fname, strerror(errno));
8820                 goto free_layout;
8821         }
8822         /**
8823          * llapi_lease_set returns lease mode when it request to unlock
8824          * the lease lock
8825          */
8826         rc = 0;
8827
8828 free_layout:
8829         llapi_layout_free(layout);
8830 close_fd:
8831         close(fd);
8832 error:
8833         return rc;
8834 }
8835
8836 static inline int lfs_mirror_resync(int argc, char **argv)
8837 {
8838         struct ll_ioc_lease *ioc = NULL;
8839         __u16 mirror_ids[128] = { 0 };
8840         int ids_nr = 0;
8841         int c;
8842         int rc = 0;
8843
8844         struct option long_opts[] = {
8845         { .val = 'o',   .name = "only",         .has_arg = required_argument },
8846         { .name = NULL } };
8847
8848         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
8849                 switch (c) {
8850                 case 'o':
8851                         rc = parse_mirror_ids(mirror_ids,
8852                                         sizeof(mirror_ids) / sizeof(__u16),
8853                                         optarg);
8854                         if (rc < 0) {
8855                                 fprintf(stderr,
8856                                         "%s: bad mirror ids '%s'.\n",
8857                                         argv[0], optarg);
8858                                 goto error;
8859                         }
8860                         ids_nr = rc;
8861                         break;
8862                 default:
8863                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
8864                                 argv[0], argv[optind - 1]);
8865                         rc = -EINVAL;
8866                         goto error;
8867                 }
8868         }
8869
8870         if (argc == optind) {
8871                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
8872                 rc = CMD_HELP;
8873                 goto error;
8874         }
8875
8876         if (ids_nr > 0 && argc > optind + 1) {
8877                 fprintf(stderr,
8878                     "%s: option '--only' cannot be used upon multiple files.\n",
8879                         argv[0]);
8880                 rc = CMD_HELP;
8881                 goto error;
8882
8883         }
8884
8885         if (ids_nr > 0) {
8886                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
8887                 if (rc < 0)
8888                         goto error;
8889         }
8890
8891         /* set the lease on the file */
8892         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
8893         if (ioc == NULL) {
8894                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
8895                         argv[0], strerror(errno));
8896                 rc = -errno;
8897                 goto error;
8898         }
8899
8900         for (; optind < argc; optind++) {
8901                 rc = lfs_mirror_resync_file(argv[optind], ioc,
8902                                             mirror_ids, ids_nr);
8903                 /* ignore previous file's error, continue with next file */
8904
8905                 /* reset ioc */
8906                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
8907         }
8908
8909         free(ioc);
8910 error:
8911         return rc;
8912 }
8913
8914 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
8915 {
8916         struct llapi_layout *layout;
8917         int rc;
8918
8919         layout = llapi_layout_get_by_fd(fd, 0);
8920         if (layout == NULL) {
8921                 fprintf(stderr, "could not get layout.\n");
8922                 return  -EINVAL;
8923         }
8924
8925         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
8926         if (rc < 0) {
8927                 fprintf(stderr, "failed to iterate layout\n");
8928                 llapi_layout_free(layout);
8929
8930                 return rc;
8931         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
8932                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
8933                 llapi_layout_free(layout);
8934
8935                 return -EINVAL;
8936         }
8937         llapi_layout_free(layout);
8938
8939         return 0;
8940 }
8941
8942 /**
8943  * Check whether two files are the same file
8944  * \retval      0  same file
8945  * \retval      1  not the same file
8946  * \retval      <0 error code
8947  */
8948 static inline int check_same_file(const char *f1, const char *f2)
8949 {
8950         struct stat stbuf1;
8951         struct stat stbuf2;
8952
8953         if (stat(f1, &stbuf1) < 0) {
8954                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8955                         progname, f1, strerror(errno));
8956                 return -errno;
8957         }
8958
8959         if (stat(f2, &stbuf2) < 0) {
8960                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8961                         progname, f2, strerror(errno));
8962                 return -errno;
8963         }
8964
8965         if (stbuf1.st_rdev == stbuf2.st_rdev &&
8966             stbuf1.st_ino == stbuf2.st_ino)
8967                 return 0;
8968
8969         return 1;
8970 }
8971
8972 static inline int lfs_mirror_read(int argc, char **argv)
8973 {
8974         int rc = CMD_HELP;
8975         __u16 mirror_id = 0;
8976         const char *outfile = NULL;
8977         char *fname;
8978         int fd = 0;
8979         int outfd;
8980         int c;
8981         void *buf;
8982         const size_t buflen = 4 << 20;
8983         off_t pos;
8984         struct option long_opts[] = {
8985         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
8986         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
8987         { .name = NULL } };
8988
8989         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
8990                 char *end;
8991
8992                 switch (c) {
8993                 case 'N':
8994                         mirror_id = strtoul(optarg, &end, 0);
8995                         if (*end != '\0' || mirror_id == 0) {
8996                                 fprintf(stderr,
8997                                         "%s %s: invalid mirror ID '%s'\n",
8998                                         progname, argv[0], optarg);
8999                                 return rc;
9000                         }
9001                         break;
9002                 case 'o':
9003                         outfile = optarg;
9004                         break;
9005                 default:
9006                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9007                                 progname, argv[optind - 1]);
9008                         return -EINVAL;
9009                 }
9010         }
9011
9012         if (argc == optind) {
9013                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9014                         progname, argv[0]);
9015                 return rc;
9016         } else if (argc > optind + 1) {
9017                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9018                 return rc;
9019         }
9020
9021         if (mirror_id == 0) {
9022                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9023                         progname, argv[0]);
9024                 return rc;
9025         }
9026
9027         /* open mirror file */
9028         fname = argv[optind];
9029
9030         if (outfile) {
9031                 rc = check_same_file(fname, outfile);
9032                 if (rc == 0) {
9033                         fprintf(stderr,
9034                         "%s %s: output file cannot be the mirrored file\n",
9035                                 progname, argv[0]);
9036                         return -EINVAL;
9037                 }
9038                 if (rc < 0)
9039                         return rc;
9040         }
9041
9042         fd = open(fname, O_DIRECT | O_RDONLY);
9043         if (fd < 0) {
9044                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9045                         progname, argv[0], fname, strerror(errno));
9046                 return rc;
9047         }
9048
9049         /* verify mirror id */
9050         rc = verify_mirror_id_by_fd(fd, mirror_id);
9051         if (rc) {
9052                 fprintf(stderr,
9053                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9054                         progname, argv[0], mirror_id, fname);
9055                 goto close_fd;
9056         }
9057
9058         /* open output file */
9059         if (outfile) {
9060                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
9061                 if (outfd < 0) {
9062                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
9063                                 progname, argv[0], outfile, strerror(errno));
9064                         rc = -errno;
9065                         goto close_fd;
9066                 }
9067         } else {
9068                 outfd = STDOUT_FILENO;
9069         }
9070
9071         /* allocate buffer */
9072         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
9073         if (rc) {
9074                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9075                                 progname, argv[0], rc);
9076                 goto close_outfd;
9077         }
9078
9079         pos = 0;
9080         while (1) {
9081                 ssize_t bytes_read;
9082                 ssize_t written = 0;
9083
9084                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
9085                 if (bytes_read < 0) {
9086                         rc = bytes_read;
9087                         fprintf(stderr,
9088                                 "%s %s: fail to read data from mirror %u: %s\n",
9089                                 progname, argv[0], mirror_id, strerror(-rc));
9090                         goto free_buf;
9091                 }
9092
9093                 /* EOF reached */
9094                 if (bytes_read == 0)
9095                         break;
9096
9097                 while (written < bytes_read) {
9098                         ssize_t written2;
9099
9100                         written2 = write(outfd, buf + written,
9101                                          bytes_read - written);
9102                         if (written2 < 0) {
9103                                 fprintf(stderr,
9104                                         "%s %s: fail to write %s: %s\n",
9105                                         progname, argv[0], outfile ? : "STDOUT",
9106                                         strerror(errno));
9107                                 rc = -errno;
9108                                 goto free_buf;
9109                         }
9110                         written += written2;
9111                 }
9112
9113                 if (written != bytes_read) {
9114                         fprintf(stderr,
9115                 "%s %s: written %ld bytes does not match with %ld read.\n",
9116                                 progname, argv[0], written, bytes_read);
9117                         rc = -EIO;
9118                         goto free_buf;
9119                 }
9120
9121                 pos += bytes_read;
9122         }
9123
9124         fsync(outfd);
9125         rc = 0;
9126
9127 free_buf:
9128         free(buf);
9129 close_outfd:
9130         if (outfile)
9131                 close(outfd);
9132 close_fd:
9133         close(fd);
9134
9135         return rc;
9136 }
9137
9138 static inline int lfs_mirror_write(int argc, char **argv)
9139 {
9140         int rc = CMD_HELP;
9141         __u16 mirror_id = 0;
9142         const char *inputfile = NULL;
9143         char *fname;
9144         int fd = 0;
9145         int inputfd;
9146         int c;
9147         void *buf;
9148         const size_t buflen = 4 << 20;
9149         off_t pos;
9150         size_t page_size = sysconf(_SC_PAGESIZE);
9151         struct ll_ioc_lease_id ioc;
9152
9153         struct option long_opts[] = {
9154         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
9155         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
9156         { .name = NULL } };
9157
9158         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
9159                 char *end;
9160
9161                 switch (c) {
9162                 case 'N':
9163                         mirror_id = strtoul(optarg, &end, 0);
9164                         if (*end != '\0' || mirror_id == 0) {
9165                                 fprintf(stderr,
9166                                         "%s %s: invalid mirror ID '%s'\n",
9167                                         progname, argv[0], optarg);
9168                                 return rc;
9169                         }
9170                         break;
9171                 case 'i':
9172                         inputfile = optarg;
9173                         break;
9174                 default:
9175                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9176                                 progname, argv[optind - 1]);
9177                         return -EINVAL;
9178                 }
9179         }
9180
9181         if (argc == optind) {
9182                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9183                         progname, argv[0]);
9184                 return rc;
9185         } else if (argc > optind + 1) {
9186                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9187                 return rc;
9188         }
9189
9190         if (mirror_id == 0) {
9191                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9192                         progname, argv[0]);
9193                 return rc;
9194         }
9195
9196         /* open mirror file */
9197         fname = argv[optind];
9198
9199         if (inputfile) {
9200                 rc = check_same_file(fname, inputfile);
9201                 if (rc == 0) {
9202                         fprintf(stderr,
9203                         "%s %s: input file cannot be the mirrored file\n",
9204                                 progname, argv[0]);
9205                         return -EINVAL;
9206                 }
9207                 if (rc < 0)
9208                         return rc;
9209         }
9210
9211         fd = open(fname, O_DIRECT | O_WRONLY);
9212         if (fd < 0) {
9213                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9214                         progname, argv[0], fname, strerror(errno));
9215                 return rc;
9216         }
9217
9218         /* verify mirror id */
9219         rc = verify_mirror_id_by_fd(fd, mirror_id);
9220         if (rc) {
9221                 fprintf(stderr,
9222                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9223                         progname, argv[0], mirror_id, fname);
9224                 goto close_fd;
9225         }
9226
9227         /* open input file */
9228         if (inputfile) {
9229                 inputfd = open(inputfile, O_RDONLY, 0644);
9230                 if (inputfd < 0) {
9231                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
9232                                 progname, argv[0], inputfile, strerror(errno));
9233                         rc = -errno;
9234                         goto close_fd;
9235                 }
9236         } else {
9237                 inputfd = STDIN_FILENO;
9238         }
9239
9240         /* allocate buffer */
9241         rc = posix_memalign(&buf, page_size, buflen);
9242         if (rc) {
9243                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9244                         progname, argv[0], rc);
9245                 goto close_inputfd;
9246         }
9247
9248         /* prepare target mirror components instantiation */
9249         ioc.lil_mode = LL_LEASE_WRLCK;
9250         ioc.lil_flags = LL_LEASE_RESYNC;
9251         ioc.lil_mirror_id = mirror_id;
9252         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
9253         if (rc < 0) {
9254                 fprintf(stderr,
9255                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
9256                         progname, argv[0], fname, strerror(errno));
9257                 goto free_buf;
9258         }
9259
9260         pos = 0;
9261         while (1) {
9262                 ssize_t bytes_read;
9263                 ssize_t written;
9264                 size_t to_write;
9265
9266                 rc = llapi_lease_check(fd);
9267                 if (rc != LL_LEASE_WRLCK) {
9268                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
9269                                 progname, argv[0], fname);
9270                         goto free_buf;
9271                 }
9272
9273                 bytes_read = read(inputfd, buf, buflen);
9274                 if (bytes_read < 0) {
9275                         rc = bytes_read;
9276                         fprintf(stderr,
9277                                 "%s %s: fail to read data from '%s': %s\n",
9278                                 progname, argv[0], inputfile ? : "STDIN",
9279                                 strerror(errno));
9280                         rc = -errno;
9281                         goto free_buf;
9282                 }
9283
9284                 /* EOF reached */
9285                 if (bytes_read == 0)
9286                         break;
9287
9288                 /* round up to page align to make direct IO happy. */
9289                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
9290
9291                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
9292                                              pos);
9293                 if (written < 0) {
9294                         rc = written;
9295                         fprintf(stderr,
9296                               "%s %s: fail to write to mirror %u: %s\n",
9297                                 progname, argv[0], mirror_id,
9298                                 strerror(-rc));
9299                         goto free_buf;
9300                 }
9301
9302                 pos += bytes_read;
9303         }
9304
9305         if (pos & (page_size - 1)) {
9306                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
9307                 if (rc < 0)
9308                         goto free_buf;
9309         }
9310
9311         ioc.lil_mode = LL_LEASE_UNLCK;
9312         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
9313         ioc.lil_count = 0;
9314         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
9315         if (rc <= 0) {
9316                 if (rc == 0)
9317                         rc = -EBUSY;
9318                 fprintf(stderr,
9319                         "%s %s: release lease lock of '%s' failed: %s\n",
9320                         progname, argv[0], fname, strerror(errno));
9321                 goto free_buf;
9322         }
9323
9324         rc = 0;
9325
9326 free_buf:
9327         free(buf);
9328 close_inputfd:
9329         if (inputfile)
9330                 close(inputfd);
9331 close_fd:
9332         close(fd);
9333
9334         return rc;
9335 }
9336
9337 struct collect_ids_data {
9338         __u16   *cid_ids;
9339         int     cid_count;
9340         __u16   cid_exclude;
9341 };
9342
9343 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
9344 {
9345         struct collect_ids_data *cid = cbdata;
9346         uint32_t id;
9347         int rc;
9348
9349         rc = llapi_layout_mirror_id_get(layout, &id);
9350         if (rc < 0)
9351                 return rc;
9352
9353         if ((__u16)id != cid->cid_exclude) {
9354                 int i;
9355
9356                 for (i = 0; i < cid->cid_count; i++) {
9357                         /* already collected the mirror id */
9358                         if (id == cid->cid_ids[i])
9359                                 return LLAPI_LAYOUT_ITER_CONT;
9360                 }
9361                 cid->cid_ids[cid->cid_count] = id;
9362                 cid->cid_count++;
9363         }
9364
9365         return LLAPI_LAYOUT_ITER_CONT;
9366 }
9367
9368 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
9369 {
9370         struct llapi_layout *layout;
9371         struct collect_ids_data cid = { .cid_ids = ids,
9372                                         .cid_count = 0,
9373                                         .cid_exclude = exclude_id, };
9374         int rc;
9375
9376         layout = llapi_layout_get_by_fd(fd, 0);
9377         if (layout == NULL) {
9378                 fprintf(stderr, "could not get layout\n");
9379                 return -EINVAL;
9380         }
9381
9382         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
9383         if (rc < 0) {
9384                 fprintf(stderr, "failed to iterate layout\n");
9385                 llapi_layout_free(layout);
9386
9387                 return rc;
9388         }
9389         llapi_layout_free(layout);
9390
9391         return cid.cid_count;
9392 }
9393
9394 static inline int lfs_mirror_copy(int argc, char **argv)
9395 {
9396         int rc = CMD_HELP;
9397         __u16 read_mirror_id = 0;
9398         __u16 ids[128] = { 0 };
9399         int count = 0;
9400         struct llapi_layout *layout = NULL;
9401         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9402         int comp_size = 0;
9403         char *fname;
9404         int fd = 0;
9405         int c;
9406         int i;
9407         ssize_t copied;
9408         struct ll_ioc_lease *ioc = NULL;
9409         struct ll_ioc_lease_id *resync_ioc;
9410
9411         struct option long_opts[] = {
9412         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
9413         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
9414         { .name = NULL } };
9415
9416         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
9417                 char *end;
9418
9419                 switch (c) {
9420                 case 'i':
9421                         read_mirror_id = strtoul(optarg, &end, 0);
9422                         if (*end != '\0' || read_mirror_id == 0) {
9423                                 fprintf(stderr,
9424                                         "%s %s: invalid read mirror ID '%s'\n",
9425                                         progname, argv[0], optarg);
9426                                 return rc;
9427                         }
9428                         break;
9429                 case 'o':
9430                         if (!strcmp(optarg, "-1")) {
9431                                 /* specify all other mirrors */
9432                                 ids[0] = (__u16)-1;
9433                                 count = 1;
9434                         } else {
9435                                 count = parse_mirror_ids((__u16 *)ids,
9436                                                          ARRAY_SIZE(ids),
9437                                                          optarg);
9438                                 if (count < 0)
9439                                         return rc;
9440                         }
9441                         break;
9442                 default:
9443                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9444                                 progname, argv[optind - 1]);
9445                         return -EINVAL;
9446                 }
9447         }
9448
9449         if (argc == optind) {
9450                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9451                         progname, argv[0]);
9452                 return rc;
9453         } else if (argc > optind + 1) {
9454                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9455                 return rc;
9456         }
9457
9458         if (read_mirror_id == 0) {
9459                 fprintf(stderr,
9460                         "%s %s: no valid read mirror ID %d is provided\n",
9461                         progname, argv[0], read_mirror_id);
9462                 return rc;
9463         }
9464
9465         if (count == 0) {
9466                 fprintf(stderr,
9467                         "%s %s: no write mirror ID is provided\n",
9468                         progname, argv[0]);
9469                 return rc;
9470         }
9471
9472         for (i = 0; i < count; i++) {
9473                 if (read_mirror_id == ids[i]) {
9474                         fprintf(stderr,
9475                         "%s %s: read and write mirror ID cannot be the same\n",
9476                                 progname, argv[0]);
9477                         return rc;
9478                 }
9479         }
9480
9481         /* open mirror file */
9482         fname = argv[optind];
9483
9484         fd = open(fname, O_DIRECT | O_RDWR);
9485         if (fd < 0) {
9486                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9487                         progname, argv[0], fname, strerror(errno));
9488                 return rc;
9489         }
9490
9491         /* write to all other mirrors */
9492         if (ids[0] == (__u16)-1) {
9493                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
9494                 if (count <= 0) {
9495                         rc = count;
9496                         fprintf(stderr,
9497                         "%s %s: failed to get other mirror ids in '%s': %d\n",
9498                                 progname, argv[0], fname, rc);
9499                         goto close_fd;
9500                 }
9501         }
9502
9503         /* verify mirror id */
9504         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
9505         if (rc) {
9506                 fprintf(stderr,
9507                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9508                         progname, argv[0], read_mirror_id, fname);
9509                 goto close_fd;
9510         }
9511
9512         for (i = 0; i < count; i++) {
9513                 rc = verify_mirror_id_by_fd(fd, ids[i]);
9514                 if (rc) {
9515                         fprintf(stderr,
9516                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9517                                 progname, argv[0], ids[i], fname);
9518                         goto close_fd;
9519                 }
9520         }
9521
9522         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9523         if (ioc == NULL) {
9524                 fprintf(stderr,
9525                         "%s %s: cannot alloc comp id array for ioc: %s\n",
9526                         progname, argv[0], strerror(errno));
9527                 rc = -errno;
9528                 goto close_fd;
9529         }
9530
9531         /* get stale component info */
9532         layout = llapi_layout_get_by_fd(fd, 0);
9533         if (layout == NULL) {
9534                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
9535                         progname, argv[0], fname, strerror(errno));
9536                 rc = -errno;
9537                 goto free_ioc;
9538         }
9539         comp_size = llapi_mirror_find_stale(layout, comp_array,
9540                                             ARRAY_SIZE(comp_array),
9541                                             ids, count);
9542         llapi_layout_free(layout);
9543         if (comp_size < 0) {
9544                 rc = comp_size;
9545                 goto free_ioc;
9546         }
9547
9548         /* prepare target mirror components instantiation */
9549         resync_ioc = (struct ll_ioc_lease_id *)ioc;
9550         resync_ioc->lil_mode = LL_LEASE_WRLCK;
9551         resync_ioc->lil_flags = LL_LEASE_RESYNC;
9552         if (count == 1)
9553                 resync_ioc->lil_mirror_id = ids[0];
9554         else
9555                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
9556         rc = llapi_lease_set(fd, ioc);
9557         if (rc < 0) {
9558                 fprintf(stderr,
9559                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
9560                         progname, argv[0], fname, strerror(errno));
9561                 goto free_ioc;
9562         }
9563
9564         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
9565         if (copied < 0) {
9566                 rc = copied;
9567                 fprintf(stderr, "%s %s: copy error: %d\n",
9568                         progname, argv[0], rc);
9569                 goto free_ioc;
9570         }
9571
9572         fprintf(stdout, "mirror copied successfully: ");
9573         for (i = 0; i < copied; i++)
9574                 fprintf(stdout, "%d ", ids[i]);
9575         fprintf(stdout, "\n");
9576
9577         ioc->lil_mode = LL_LEASE_UNLCK;
9578         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
9579         ioc->lil_count = 0;
9580         for (i = 0; i < comp_size; i++) {
9581                 int j;
9582
9583                 for (j = 0; j < copied; j++) {
9584                         if (comp_array[i].lrc_mirror_id != ids[j])
9585                                 continue;
9586
9587                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
9588                         ioc->lil_count++;
9589                 }
9590         }
9591         rc = llapi_lease_set(fd, ioc);
9592         if (rc <= 0) {
9593                 if (rc == 0)
9594                         rc = -EBUSY;
9595                 fprintf(stderr,
9596                         "%s %s: release lease lock of '%s' failed: %s\n",
9597                         progname, argv[0], fname, strerror(errno));
9598                 goto free_ioc;
9599         }
9600
9601         rc = 0;
9602
9603 free_ioc:
9604         free(ioc);
9605 close_fd:
9606         close(fd);
9607
9608         return rc;
9609 }
9610 /**
9611  * struct verify_chunk - Mirror chunk to be verified.
9612  * @chunk:        [start, end) of the chunk.
9613  * @mirror_count: Number of mirror ids in @mirror_id array.
9614  * @mirror_id:    Array of valid mirror ids that cover the chunk.
9615  */
9616 struct verify_chunk {
9617         struct lu_extent chunk;
9618         unsigned int mirror_count;
9619         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
9620 };
9621
9622 /**
9623  * print_chunks() - Print chunk information.
9624  * @fname:       Mirrored file name.
9625  * @chunks:      Array of chunks.
9626  * @chunk_count: Number of chunks in @chunks array.
9627  *
9628  * This function prints [start, end) of each chunk in @chunks
9629  * for mirrored file @fname, and also prints the valid mirror ids
9630  * that cover the chunk.
9631  *
9632  * Return: void.
9633  */
9634 static inline
9635 void print_chunks(const char *fname, struct verify_chunk *chunks,
9636                   int chunk_count)
9637 {
9638         int i;
9639         int j;
9640
9641         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
9642         for (i = 0; i < chunk_count; i++) {
9643                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
9644
9645                 if (chunks[i].mirror_count == 0)
9646                         fprintf(stdout, "\t[");
9647                 else {
9648                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
9649                         for (j = 1; j < chunks[i].mirror_count; j++)
9650                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
9651                 }
9652                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
9653         }
9654         fprintf(stdout, "\n");
9655 }
9656
9657 /**
9658  * print_checksums() - Print CRC-32 checksum values.
9659  * @chunk: A chunk and its corresponding valid mirror ids.
9660  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
9661  *
9662  * This function prints CRC-32 checksum values on @chunk for
9663  * each valid mirror that covers it.
9664  *
9665  * Return: void.
9666  */
9667 static inline
9668 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
9669 {
9670         int i;
9671
9672         fprintf(stdout,
9673                 "CRC-32 checksum value for chunk "DEXT":\n",
9674                 PEXT(&chunk->chunk));
9675         for (i = 0; i < chunk->mirror_count; i++)
9676                 fprintf(stdout, "Mirror %u:\t%#lx\n",
9677                         chunk->mirror_id[i], crc[i]);
9678         fprintf(stdout, "\n");
9679 }
9680
9681 /**
9682  * filter_mirror_id() - Filter specified mirror ids.
9683  * @chunks:      Array of chunks.
9684  * @chunk_count: Number of chunks in @chunks array.
9685  * @mirror_ids:  Specified mirror ids to be verified.
9686  * @ids_nr:      Number of specified mirror ids.
9687  *
9688  * This function scans valid mirror ids that cover each chunk in @chunks
9689  * and filters specified mirror ids.
9690  *
9691  * Return: void.
9692  */
9693 static inline
9694 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
9695                       __u16 *mirror_ids, int ids_nr)
9696 {
9697         int i;
9698         int j;
9699         int k;
9700         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9701         unsigned int valid_count = 0;
9702
9703         for (i = 0; i < chunk_count; i++) {
9704                 if (chunks[i].mirror_count == 0)
9705                         continue;
9706
9707                 valid_count = 0;
9708                 for (j = 0; j < ids_nr; j++) {
9709                         for (k = 0; k < chunks[i].mirror_count; k++) {
9710                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
9711                                         valid_id[valid_count] = mirror_ids[j];
9712                                         valid_count++;
9713                                         break;
9714                                 }
9715                         }
9716                 }
9717
9718                 memcpy(chunks[i].mirror_id, valid_id,
9719                        sizeof(__u16) * valid_count);
9720                 chunks[i].mirror_count = valid_count;
9721         }
9722 }
9723
9724 /**
9725  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
9726  * @layout:      Mirror component list.
9727  * @chunks:      Array of chunks.
9728  * @chunks_size: Array size of @chunks.
9729  *
9730  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
9731  * to find out chunk segments and store them in @chunks array.
9732  *
9733  * The @mirror_id array in each element of @chunks will store the valid
9734  * mirror ids that cover the chunk. If a mirror component covering the
9735  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
9736  * will not be stored into the @mirror_id array, and the chunk for that
9737  * mirror will not be verified.
9738  *
9739  * The @mirror_count in each element of @chunks will store the number of
9740  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
9741  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
9742  * indicates the chunk is valid in only one mirror. In both cases, the
9743  * chunk will not be verified.
9744  *
9745  * Here is an example:
9746  *
9747  *  0      1M     2M     3M     4M           EOF
9748  *  +------+-------------+--------------------+
9749  *  |      |             |      S             |       mirror1
9750  *  +------+------+------+------+-------------+
9751  *  |             |   S  |   S  |             |       mirror2
9752  *  +-------------+------+------+-------------+
9753  *
9754  * prepared @chunks array will contain 5 elements:
9755  * (([0, 1M), [1, 2], 2),
9756  *  ([1M, 2M), [1, 2], 2),
9757  *  ([2M, 3M), [1], 1),
9758  *  ([3M, 4M], [], 0),
9759  *  ([4M, EOF), [2], 1))
9760  *
9761  * Return: the actual array size of @chunks on success
9762  *         or a negative error code on failure.
9763  */
9764 static inline
9765 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
9766                              struct verify_chunk *chunks,
9767                              size_t chunks_size)
9768 {
9769         uint64_t start;
9770         uint64_t end;
9771         uint32_t mirror_id;
9772         uint32_t flags;
9773         int idx = 0;
9774         int i = 0;
9775         int rc = 0;
9776
9777         memset(chunks, 0, sizeof(*chunks) * chunks_size);
9778
9779         while (1) {
9780                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
9781                 if (rc < 0) {
9782                         fprintf(stderr,
9783                                 "%s: move to the first layout component: %s.\n",
9784                                 progname, strerror(errno));
9785                         goto error;
9786                 }
9787
9788                 i = 0;
9789                 rc = 0;
9790                 chunks[idx].chunk.e_end = LUSTRE_EOF;
9791                 while (rc == 0) {
9792                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
9793                         if (rc < 0) {
9794                                 fprintf(stderr,
9795                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
9796                                         progname, strerror(errno));
9797                                 goto error;
9798                         }
9799
9800                         if (start > chunks[idx].chunk.e_start ||
9801                             end <= chunks[idx].chunk.e_start)
9802                                 goto next;
9803
9804                         if (end < chunks[idx].chunk.e_end)
9805                                 chunks[idx].chunk.e_end = end;
9806
9807                         rc = llapi_layout_comp_flags_get(layout, &flags);
9808                         if (rc < 0) {
9809                                 fprintf(stderr,
9810                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
9811                                         progname, strerror(errno));
9812                                 goto error;
9813                         }
9814
9815                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
9816                                 goto next;
9817
9818                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9819                         if (rc < 0) {
9820                                 fprintf(stderr,
9821                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9822                                         progname, strerror(errno));
9823                                 goto error;
9824                         }
9825
9826                         chunks[idx].mirror_id[i] = mirror_id;
9827                         i++;
9828                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
9829                                 fprintf(stderr,
9830                                         "%s: mirror_id array is too small.\n",
9831                                         progname);
9832                                 rc = -EINVAL;
9833                                 goto error;
9834                         }
9835
9836                 next:
9837                         rc = llapi_layout_comp_use(layout,
9838                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
9839                         if (rc < 0) {
9840                                 fprintf(stderr,
9841                                         "%s: move to the next layout component: %s.\n",
9842                                         progname, strerror(errno));
9843                                 goto error;
9844                         }
9845                 } /* loop through all components */
9846
9847                 chunks[idx].mirror_count = i;
9848
9849                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
9850                         break;
9851
9852                 idx++;
9853                 if (idx >= chunks_size) {
9854                         fprintf(stderr, "%s: chunks array is too small.\n",
9855                                 progname);
9856                         rc = -EINVAL;
9857                         goto error;
9858                 }
9859
9860                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
9861         }
9862
9863 error:
9864         return rc < 0 ? rc : idx + 1;
9865 }
9866
9867 /**
9868  * lfs_mirror_verify_chunk() - Verify a chunk.
9869  * @fd:        File descriptor of the mirrored file.
9870  * @file_size: Size of the mirrored file.
9871  * @chunk:     A chunk and its corresponding valid mirror ids.
9872  * @verbose:   Verbose mode.
9873  *
9874  * This function verifies a @chunk contains exactly the same data
9875  * ammong the mirrors that cover it.
9876  *
9877  * If @verbose is specified, then the function will print where the
9878  * differences are if the data do not match. Otherwise, it will
9879  * just return an error in that case.
9880  *
9881  * Return: 0 on success or a negative error code on failure.
9882  */
9883 static inline
9884 int lfs_mirror_verify_chunk(int fd, size_t file_size,
9885                             struct verify_chunk *chunk, int verbose)
9886 {
9887         const size_t buflen = 4 * 1024 * 1024; /* 4M */
9888         void *buf;
9889         size_t page_size = sysconf(_SC_PAGESIZE);
9890         ssize_t bytes_read;
9891         ssize_t bytes_done;
9892         size_t count;
9893         off_t pos;
9894         unsigned long crc;
9895         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9896         int i;
9897         int rc = 0;
9898
9899         if (file_size == 0)
9900                 return 0;
9901
9902         rc = posix_memalign(&buf, page_size, buflen);
9903         if (rc) /* error code is returned directly */
9904                 return -rc;
9905
9906         if (verbose > 1) {
9907                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9908                         PEXT(&chunk->chunk));
9909                 for (i = 0; i < chunk->mirror_count; i++)
9910                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9911                 fprintf(stdout, "\n");
9912         }
9913
9914         bytes_done = 0;
9915         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
9916         pos = chunk->chunk.e_start;
9917         while (bytes_done < count) {
9918                 /* compute initial CRC-32 checksum */
9919                 crc = crc32(0L, Z_NULL, 0);
9920                 memset(crc_array, 0, sizeof(crc_array));
9921
9922                 bytes_read = 0;
9923                 for (i = 0; i < chunk->mirror_count; i++) {
9924                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
9925                                                        buf, buflen, pos);
9926                         if (bytes_read < 0) {
9927                                 rc = bytes_read;
9928                                 fprintf(stderr,
9929                                         "%s: failed to read data from mirror %u: %s.\n",
9930                                         progname, chunk->mirror_id[i],
9931                                         strerror(-rc));
9932                                 goto error;
9933                         }
9934
9935                         /* compute new CRC-32 checksum */
9936                         crc_array[i] = crc32(crc, buf, bytes_read);
9937                 }
9938
9939                 if (verbose)
9940                         print_checksums(chunk, crc_array);
9941
9942                 /* compare CRC-32 checksum values */
9943                 for (i = 1; i < chunk->mirror_count; i++) {
9944                         if (crc_array[i] != crc_array[0]) {
9945                                 rc = -EINVAL;
9946
9947                                 fprintf(stderr,
9948                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
9949                                         progname, PEXT(&chunk->chunk),
9950                                         chunk->mirror_id[0],
9951                                         chunk->mirror_id[i]);
9952                         }
9953                 }
9954
9955                 pos += bytes_read;
9956                 bytes_done += bytes_read;
9957         }
9958
9959         if (verbose > 1 && rc == 0) {
9960                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9961                         PEXT(&chunk->chunk));
9962                 for (i = 0; i < chunk->mirror_count; i++)
9963                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9964                 fprintf(stdout, " PASS\n\n");
9965         }
9966
9967 error:
9968         free(buf);
9969         return rc;
9970 }
9971
9972 /**
9973  * lfs_mirror_verify_file() - Verify a mirrored file.
9974  * @fname:      Mirrored file name.
9975  * @mirror_ids: Specified mirror ids to be verified.
9976  * @ids_nr:     Number of specified mirror ids.
9977  * @verbose:    Verbose mode.
9978  *
9979  * This function verifies that each SYNC mirror of a mirrored file
9980  * specified by @fname contains exactly the same data.
9981  *
9982  * If @mirror_ids is specified, then the function will verify the
9983  * mirrors specified by @mirror_ids contain exactly the same data.
9984  *
9985  * If @verbose is specified, then the function will print where the
9986  * differences are if the data do not match. Otherwise, it will
9987  * just return an error in that case.
9988  *
9989  * Return: 0 on success or a negative error code on failure.
9990  */
9991 static inline
9992 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
9993                            int verbose)
9994 {
9995         struct verify_chunk chunks_array[1024] = { };
9996         struct llapi_layout *layout = NULL;
9997         struct stat stbuf;
9998         uint32_t flr_state;
9999         int fd;
10000         int chunk_count = 0;
10001         int idx = 0;
10002         int rc = 0;
10003         int rc1 = 0;
10004         int rc2 = 0;
10005
10006         if (stat(fname, &stbuf) < 0) {
10007                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10008                         progname, fname, strerror(errno));
10009                 rc = -errno;
10010                 goto error;
10011         }
10012
10013         if (!S_ISREG(stbuf.st_mode)) {
10014                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10015                         progname, fname);
10016                 rc = -EINVAL;
10017                 goto error;
10018         }
10019
10020         if (stbuf.st_size == 0) {
10021                 if (verbose)
10022                         fprintf(stdout, "%s: '%s' file size is 0.\n",
10023                                 progname, fname);
10024                 rc = 0;
10025                 goto error;
10026         }
10027
10028         fd = open(fname, O_DIRECT | O_RDONLY);
10029         if (fd < 0) {
10030                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10031                         progname, fname, strerror(errno));
10032                 rc = -errno;
10033                 goto error;
10034         }
10035
10036         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10037         if (rc < 0) {
10038                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10039                         progname, fname, strerror(errno));
10040                 goto close_fd;
10041         }
10042
10043         layout = llapi_layout_get_by_fd(fd, 0);
10044         if (layout == NULL) {
10045                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10046                         progname, fname, strerror(errno));
10047                 rc = -errno;
10048                 llapi_lease_release(fd);
10049                 goto close_fd;
10050         }
10051
10052         rc = llapi_layout_flags_get(layout, &flr_state);
10053         if (rc < 0) {
10054                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10055                         progname, fname, strerror(errno));
10056                 rc = -errno;
10057                 goto free_layout;
10058         }
10059
10060         flr_state &= LCM_FL_FLR_MASK;
10061         switch (flr_state) {
10062         case LCM_FL_NONE:
10063                 rc = -EINVAL;
10064                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10065                         progname, fname, llapi_layout_flags_string(flr_state));
10066                 goto free_layout;
10067         default:
10068                 break;
10069         }
10070
10071         /* find out mirror chunks to be verified */
10072         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
10073                                                ARRAY_SIZE(chunks_array));
10074         if (chunk_count < 0) {
10075                 rc = chunk_count;
10076                 goto free_layout;
10077         }
10078
10079         if (ids_nr > 0)
10080                 /* filter specified mirror ids */
10081                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
10082
10083         if (verbose > 2)
10084                 print_chunks(fname, chunks_array, chunk_count);
10085
10086         for (idx = 0; idx < chunk_count; idx++) {
10087                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
10088                         if (verbose)
10089                                 fprintf(stdout,
10090                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
10091                                         progname, fname,
10092                                         PEXT(&chunks_array[idx].chunk),
10093                                         (unsigned long long)stbuf.st_size);
10094                         break;
10095                 }
10096
10097                 if (chunks_array[idx].mirror_count == 0) {
10098                         fprintf(stderr,
10099                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
10100                                 progname, fname,
10101                                 PEXT(&chunks_array[idx].chunk));
10102                         if (verbose) {
10103                                 fprintf(stderr, "skipped\n");
10104                                 continue;
10105                         }
10106                         rc = -EINVAL;
10107                         fprintf(stderr, "failed\n");
10108                         goto free_layout;
10109                 }
10110
10111                 if (chunks_array[idx].mirror_count == 1) {
10112                         if (verbose)
10113                                 fprintf(stdout,
10114                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
10115                                         progname, fname,
10116                                         PEXT(&chunks_array[idx].chunk),
10117                                         chunks_array[idx].mirror_id[0]);
10118                         continue;
10119                 }
10120
10121                 rc = llapi_lease_check(fd);
10122                 if (rc != LL_LEASE_RDLCK) {
10123                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
10124                                 progname, fname);
10125                         goto free_layout;
10126                 }
10127
10128                 /* verify one chunk */
10129                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
10130                                               &chunks_array[idx], verbose);
10131                 if (rc1 < 0) {
10132                         rc2 = rc1;
10133                         if (!verbose) {
10134                                 rc = rc1;
10135                                 goto free_layout;
10136                         }
10137                 }
10138         }
10139
10140         if (rc2 < 0)
10141                 rc = rc2;
10142
10143 free_layout:
10144         llapi_layout_free(layout);
10145         llapi_lease_release(fd);
10146 close_fd:
10147         close(fd);
10148 error:
10149         return rc;
10150 }
10151
10152 /**
10153  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
10154  * @argc: The count of lfs mirror verify command line arguments.
10155  * @argv: Array of strings for lfs mirror verify command line arguments.
10156  *
10157  * This function parses lfs mirror verify command and verifies the
10158  * specified mirrored file(s).
10159  *
10160  * Return: 0 on success or a negative error code on failure.
10161  */
10162 static inline int lfs_mirror_verify(int argc, char **argv)
10163 {
10164         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10165         int ids_nr = 0;
10166         int c;
10167         int verbose = 0;
10168         int rc = 0;
10169         int rc1 = 0;
10170         char cmd[PATH_MAX];
10171
10172         struct option long_opts[] = {
10173         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10174         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
10175         { .name = NULL } };
10176
10177         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10178         progname = cmd;
10179         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
10180                 switch (c) {
10181                 case 'o':
10182                         rc = parse_mirror_ids(mirror_ids,
10183                                               ARRAY_SIZE(mirror_ids),
10184                                               optarg);
10185                         if (rc < 0) {
10186                                 fprintf(stderr,
10187                                         "%s: bad mirror ids '%s'.\n",
10188                                         progname, optarg);
10189                                 goto error;
10190                         }
10191                         ids_nr = rc;
10192                         if (ids_nr < 2) {
10193                                 fprintf(stderr,
10194                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
10195                                         progname);
10196                                 rc = CMD_HELP;
10197                                 goto error;
10198                         }
10199                         break;
10200                 case 'v':
10201                         verbose++;
10202                         break;
10203                 default:
10204                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
10205                                 progname, argv[optind - 1]);
10206                         rc = -EINVAL;
10207                         goto error;
10208                 }
10209         }
10210
10211         if (argc == optind) {
10212                 fprintf(stderr, "%s: no file name given.\n", progname);
10213                 rc = CMD_HELP;
10214                 goto error;
10215         }
10216
10217         if (ids_nr > 0 && argc > optind + 1) {
10218                 fprintf(stderr,
10219                         "%s: '--only' cannot be used upon multiple files.\n",
10220                         progname);
10221                 rc = CMD_HELP;
10222                 goto error;
10223
10224         }
10225
10226         if (ids_nr > 0) {
10227                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10228                 if (rc < 0)
10229                         goto error;
10230         }
10231
10232         rc = 0;
10233         for (; optind < argc; optind++) {
10234                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
10235                                              verbose);
10236                 if (rc1 < 0)
10237                         rc = rc1;
10238         }
10239 error:
10240         return rc;
10241 }
10242
10243 /**
10244  * lfs_mirror() - Parse and execute lfs mirror commands.
10245  * @argc: The count of lfs mirror command line arguments.
10246  * @argv: Array of strings for lfs mirror command line arguments.
10247  *
10248  * This function parses lfs mirror commands and performs the
10249  * corresponding functions specified in mirror_cmdlist[].
10250  *
10251  * Return: 0 on success or an error code on failure.
10252  */
10253 static int lfs_mirror(int argc, char **argv)
10254 {
10255         char cmd[PATH_MAX];
10256         int rc = 0;
10257
10258         setlinebuf(stdout);
10259
10260         Parser_init("lfs-mirror > ", mirror_cmdlist);
10261
10262         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10263         progname = cmd;
10264         program_invocation_short_name = cmd;
10265         if (argc > 1)
10266                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
10267         else
10268                 rc = Parser_commands();
10269
10270         return rc < 0 ? -rc : rc;
10271 }
10272
10273 static void lustre_som_swab(struct lustre_som_attrs *attrs)
10274 {
10275 #if __BYTE_ORDER == __BIG_ENDIAN
10276         __swab16s(&attrs->lsa_valid);
10277         __swab64s(&attrs->lsa_size);
10278         __swab64s(&attrs->lsa_blocks);
10279 #endif
10280 }
10281
10282 enum lfs_som_type {
10283         LFS_SOM_SIZE = 0x1,
10284         LFS_SOM_BLOCKS = 0x2,
10285         LFS_SOM_FLAGS = 0x4,
10286         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
10287                            LFS_SOM_FLAGS,
10288 };
10289
10290 static int lfs_getsom(int argc, char **argv)
10291 {
10292         const char *path;
10293         struct lustre_som_attrs *attrs;
10294         char buf[sizeof(*attrs) + 64];
10295         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
10296         int rc = 0, c;
10297
10298         while ((c = getopt(argc, argv, "sbf")) != -1) {
10299                 switch (c) {
10300                 case 's':
10301                         type = LFS_SOM_SIZE;
10302                         break;
10303                 case 'b':
10304                         type = LFS_SOM_BLOCKS;
10305                         break;
10306                 case 'f':
10307                         type = LFS_SOM_FLAGS;
10308                         break;
10309                 default:
10310                         fprintf(stderr, "%s: invalid option '%c'\n",
10311                                 progname, optopt);
10312                         return CMD_HELP;
10313                 }
10314         }
10315
10316         argc -= optind;
10317         argv += optind;
10318
10319         if (argc != 1) {
10320                 fprintf(stderr, "%s: %s\n",
10321                         progname, argc == 0 ? "miss file target" :
10322                         "input more than 2 files");
10323                 return CMD_HELP;
10324         }
10325
10326         path = argv[0];
10327         attrs = (void *)buf;
10328         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
10329         if (rc < 0) {
10330                 rc = -errno;
10331                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
10332                         argv[0], strerror(errno), errno);
10333                 return rc;
10334         }
10335
10336         lustre_som_swab(attrs);
10337
10338         switch (type) {
10339         case LFS_SOM_ATTR_ALL:
10340                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
10341                        path, attrs->lsa_size, attrs->lsa_blocks,
10342                        attrs->lsa_valid);
10343                 break;
10344         case LFS_SOM_SIZE:
10345                 printf("%llu\n", attrs->lsa_size);
10346                 break;
10347         case LFS_SOM_BLOCKS:
10348                 printf("%llu\n", attrs->lsa_blocks);
10349                 break;
10350         case LFS_SOM_FLAGS:
10351                 printf("%x\n", attrs->lsa_valid);
10352                 break;
10353         default:
10354                 fprintf(stderr, "%s: unknown option\n", progname);
10355                 return CMD_HELP;
10356         }
10357
10358         return 0;
10359 }
10360
10361 /**
10362  * lfs_mirror_list_commands() - List lfs mirror commands.
10363  * @argc: The count of command line arguments.
10364  * @argv: Array of strings for command line arguments.
10365  *
10366  * This function lists lfs mirror commands defined in mirror_cmdlist[].
10367  *
10368  * Return: 0 on success.
10369  */
10370 static int lfs_mirror_list_commands(int argc, char **argv)
10371 {
10372         char buffer[81] = "";
10373
10374         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
10375                              NULL, 0, 4);
10376
10377         return 0;
10378 }
10379
10380 static int lfs_pcc_attach(int argc, char **argv)
10381 {
10382         struct option long_opts[] = {
10383         { .val = 'i',   .name = "id",   .has_arg = required_argument },
10384         { .name = NULL } };
10385         int c;
10386         int rc = 0;
10387         __u32 archive_id = 0;
10388         const char *path;
10389         char *end;
10390         char fullpath[PATH_MAX];
10391         enum lu_pcc_type type = LU_PCC_READWRITE;
10392
10393         optind = 0;
10394         while ((c = getopt_long(argc, argv, "i:",
10395                                 long_opts, NULL)) != -1) {
10396                 switch (c) {
10397                 case 'i':
10398                         archive_id = strtoul(optarg, &end, 0);
10399                         if (*end != '\0' || archive_id == 0) {
10400                                 fprintf(stderr, "error: %s: bad archive ID "
10401                                         "'%s'\n", argv[0], optarg);
10402                                 return CMD_HELP;
10403                         }
10404                         break;
10405                 case '?':
10406                         return CMD_HELP;
10407                 default:
10408                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10409                                 argv[0], argv[optind - 1]);
10410                         return CMD_HELP;
10411                 }
10412         }
10413
10414         if (argc <= optind) {
10415                 fprintf(stderr, "%s: must specify one or more file names\n",
10416                         argv[0]);
10417                 return CMD_HELP;
10418         }
10419
10420         while (optind < argc) {
10421                 int rc2;
10422
10423                 path = argv[optind++];
10424                 if (realpath(path, fullpath) == NULL) {
10425                         fprintf(stderr, "%s: could not find path '%s': %s\n",
10426                                 argv[0], path, strerror(errno));
10427                         if (rc == 0)
10428                                 rc = -EINVAL;
10429                         continue;
10430                 }
10431
10432                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
10433                 if (rc2 < 0) {
10434                         fprintf(stderr, "%s: cannot attach '%s' to PCC "
10435                                 "with archive ID '%u': %s\n", argv[0],
10436                                 path, archive_id, strerror(-rc2));
10437                         if (rc == 0)
10438                                 rc = rc2;
10439                 }
10440         }
10441         return rc;
10442 }
10443
10444 static int lfs_pcc_attach_fid(int argc, char **argv)
10445 {
10446         struct option long_opts[] = {
10447         { .val = 'i',   .name = "id",   .has_arg = required_argument },
10448         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
10449         { .name = NULL } };
10450         char                     short_opts[] = "i:m:";
10451         int                      c;
10452         int                      rc = 0;
10453         __u32                    archive_id = 0;
10454         char                    *end;
10455         const char              *mntpath = NULL;
10456         const char              *fidstr;
10457         enum lu_pcc_type         type = LU_PCC_READWRITE;
10458
10459         optind = 0;
10460         while ((c = getopt_long(argc, argv, short_opts,
10461                                 long_opts, NULL)) != -1) {
10462                 switch (c) {
10463                 case 'i':
10464                         archive_id = strtoul(optarg, &end, 0);
10465                         if (*end != '\0') {
10466                                 fprintf(stderr, "error: %s: bad archive ID "
10467                                         "'%s'\n", argv[0], optarg);
10468                                 return CMD_HELP;
10469                         }
10470                         break;
10471                 case 'm':
10472                         mntpath = optarg;
10473                         break;
10474                 case '?':
10475                         return CMD_HELP;
10476                 default:
10477                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10478                                 argv[0], argv[optind - 1]);
10479                         return CMD_HELP;
10480                 }
10481         }
10482
10483         if (archive_id == 0) {
10484                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
10485                 return CMD_HELP;
10486         }
10487
10488         if (mntpath == NULL) {
10489                 fprintf(stderr, "%s: must specify Lustre mount point\n",
10490                         argv[0]);
10491                 return CMD_HELP;
10492         }
10493
10494         if (argc <= optind) {
10495                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
10496                 return CMD_HELP;
10497         }
10498
10499         while (optind < argc) {
10500                 int rc2;
10501
10502                 fidstr = argv[optind++];
10503
10504                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
10505                                                archive_id, type);
10506                 if (rc2 < 0) {
10507                         fprintf(stderr, "%s: cannot attach '%s' on '%s' to PCC "
10508                                 "with archive ID '%u': %s\n", argv[0],
10509                                 fidstr, mntpath, archive_id, strerror(rc2));
10510                 }
10511                 if (rc == 0 && rc2 < 0)
10512                         rc = rc2;
10513         }
10514         return rc;
10515 }
10516
10517 static int lfs_pcc_detach(int argc, char **argv)
10518 {
10519         int                      rc = 0;
10520         const char              *path;
10521         char                     fullpath[PATH_MAX];
10522
10523         optind = 1;
10524
10525         if (argc <= 1) {
10526                 fprintf(stderr, "%s: must specify one or more file names\n",
10527                         argv[0]);
10528                 return CMD_HELP;
10529         }
10530
10531         while (optind < argc) {
10532                 int rc2;
10533
10534                 path = argv[optind++];
10535                 if (realpath(path, fullpath) == NULL) {
10536                         fprintf(stderr, "%s: could not find path '%s': %s\n",
10537                                 argv[0], path, strerror(errno));
10538                         if (rc == 0)
10539                                 rc = -EINVAL;
10540                         continue;
10541                 }
10542
10543                 rc2 = llapi_pcc_detach_file(fullpath);
10544                 if (rc2 < 0) {
10545                         rc2 = -errno;
10546                         fprintf(stderr, "%s: cannot detach '%s' from PCC: "
10547                                 "%s\n", argv[0], path, strerror(errno));
10548                         if (rc == 0)
10549                                 rc = rc2;
10550                 }
10551         }
10552         return rc;
10553 }
10554
10555 static int lfs_pcc_detach_fid(int argc, char **argv)
10556 {
10557         int              rc = 0;
10558         const char      *fid;
10559         const char      *mntpath;
10560
10561         optind = 1;
10562
10563         if (argc <= 2) {
10564                 fprintf(stderr, "%s: not enough argument\n",
10565                         argv[0]);
10566                 return CMD_HELP;
10567         }
10568
10569         mntpath = argv[optind++];
10570
10571         while (optind < argc) {
10572                 int rc2;
10573
10574                 fid = argv[optind++];
10575
10576                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid);
10577                 if (rc2 < 0) {
10578                         fprintf(stderr, "%s: cannot detach '%s' on '%s' "
10579                                 "from PCC: %s\n", argv[0], fid, mntpath,
10580                                 strerror(-rc2));
10581                         if (rc == 0)
10582                                 rc = rc2;
10583                 }
10584         }
10585         return rc;
10586 }
10587
10588 static int lfs_pcc_state(int argc, char **argv)
10589 {
10590         int                      rc = 0;
10591         const char              *path;
10592         char                     fullpath[PATH_MAX];
10593         struct lu_pcc_state      state;
10594
10595         optind = 1;
10596
10597         if (argc <= 1) {
10598                 fprintf(stderr, "%s: must specify one or more file names\n",
10599                         argv[0]);
10600                 return CMD_HELP;
10601         }
10602
10603         while (optind < argc) {
10604                 int rc2;
10605
10606                 path = argv[optind++];
10607                 if (realpath(path, fullpath) == NULL) {
10608                         fprintf(stderr, "%s: could not find path '%s': %s\n",
10609                                 argv[0], path, strerror(errno));
10610                         if (rc == 0)
10611                                 rc = -EINVAL;
10612                         continue;
10613                 }
10614
10615                 rc2 = llapi_pcc_state_get(fullpath, &state);
10616                 if (rc2 < 0) {
10617                         if (rc == 0)
10618                                 rc = rc2;
10619                         fprintf(stderr, "%s: cannot get PCC state of '%s': "
10620                                 "%s\n", argv[0], path, strerror(-rc2));
10621                         continue;
10622                 }
10623
10624                 printf("file: %s", path);
10625                 printf(", type: %s", pcc_type2string(state.pccs_type));
10626                 if (state.pccs_type == LU_PCC_NONE &&
10627                     state.pccs_open_count == 0) {
10628                         printf("\n");
10629                         continue;
10630                 }
10631
10632                 printf(", PCC file: %s", state.pccs_path);
10633                 printf(", user number: %u", state.pccs_open_count);
10634                 printf(", flags: %x", state.pccs_flags);
10635                 printf("\n");
10636         }
10637         return rc;
10638 }
10639
10640 /**
10641  * lfs_pcc_list_commands() - List lfs pcc commands.
10642  * @argc: The count of command line arguments.
10643  * @argv: Array of strings for command line arguments.
10644  *
10645  * This function lists lfs pcc commands defined in pcc_cmdlist[].
10646  *
10647  * Return: 0 on success.
10648  */
10649 static int lfs_pcc_list_commands(int argc, char **argv)
10650 {
10651         char buffer[81] = "";
10652
10653         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
10654                              NULL, 0, 4);
10655
10656         return 0;
10657 }
10658
10659 /**
10660  * lfs_pcc() - Parse and execute lfs pcc commands.
10661  * @argc: The count of lfs pcc command line arguments.
10662  * @argv: Array of strings for lfs pcc command line arguments.
10663  *
10664  * This function parses lfs pcc commands and performs the
10665  * corresponding functions specified in pcc_cmdlist[].
10666  *
10667  * Return: 0 on success or an error code on failure.
10668  */
10669 static int lfs_pcc(int argc, char **argv)
10670 {
10671         char cmd[PATH_MAX];
10672         int rc = 0;
10673
10674         setlinebuf(stdout);
10675
10676         Parser_init("lfs-pcc > ", pcc_cmdlist);
10677
10678         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10679         progname = cmd;
10680         program_invocation_short_name = cmd;
10681         if (argc > 1)
10682                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
10683         else
10684                 rc = Parser_commands();
10685
10686         return rc < 0 ? -rc : rc;
10687 }
10688
10689 static int lfs_list_commands(int argc, char **argv)
10690 {
10691         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
10692
10693         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
10694
10695         return 0;
10696 }
10697
10698 int main(int argc, char **argv)
10699 {
10700         int rc;
10701
10702         /* Ensure that liblustreapi constructor has run */
10703         if (!llapi_liblustreapi_initialized())
10704                 fprintf(stderr, "liblustreapi was not properly initialized\n");
10705
10706         setlinebuf(stdout);
10707         opterr = 0;
10708
10709         Parser_init("lfs > ", cmdlist);
10710
10711         progname = program_invocation_short_name; /* Used in error messages */
10712         if (argc > 1) {
10713                 llapi_set_command_name(argv[1]);
10714                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
10715                 llapi_clear_command_name();
10716         } else {
10717                 rc = Parser_commands();
10718         }
10719
10720         return rc < 0 ? -rc : rc;
10721 }
10722
10723 #ifdef _LUSTRE_IDL_H_
10724 /* Everything we need here should be included by lustreapi.h. */
10725 # error "lfs should not depend on lustre_idl.h"
10726 #endif /* _LUSTRE_IDL_H_ */