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         /* Unknown name */
4946         if (s > ARRAY_SIZE(obd_statfs_state_names)/sizeof(char) ||
4947             obd_statfs_state_names[s] == 0)
4948                 return '?';
4949
4950         return obd_statfs_state_names[s];
4951 }
4952
4953 static int showdf(char *mntdir, struct obd_statfs *stat,
4954                   char *uuid, enum mntdf_flags flags,
4955                   char *type, int index, int rc)
4956 {
4957         long long avail, used, total;
4958         int ratio = 0;
4959         char *suffix = "KMGTPEZY";
4960         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
4961         char tbuf[3 * sizeof(__u64)];
4962         char ubuf[3 * sizeof(__u64)];
4963         char abuf[3 * sizeof(__u64)];
4964         char rbuf[3 * sizeof(__u64)];
4965
4966         if (!uuid || !stat)
4967                 return -EINVAL;
4968
4969         switch (rc) {
4970         case 0:
4971                 if (flags & MNTDF_INODES) {
4972                         avail = stat->os_ffree;
4973                         used = stat->os_files - stat->os_ffree;
4974                         total = stat->os_files;
4975                 } else {
4976                         int shift = flags & MNTDF_COOKED ? 0 : 10;
4977
4978                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
4979                         used  = ((stat->os_blocks - stat->os_bfree) *
4980                                  stat->os_bsize) >> shift;
4981                         total = (stat->os_blocks * stat->os_bsize) >> shift;
4982                 }
4983
4984                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
4985
4986                 if (flags & MNTDF_COOKED) {
4987                         int i;
4988                         double cook_val;
4989
4990                         cook_val = (double)total;
4991                         i = COOK(cook_val);
4992                         if (i > 0)
4993                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
4994                                          suffix[i - 1]);
4995                         else
4996                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
4997
4998                         cook_val = (double)used;
4999                         i = COOK(cook_val);
5000                         if (i > 0)
5001                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
5002                                          suffix[i - 1]);
5003                         else
5004                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
5005
5006                         cook_val = (double)avail;
5007                         i = COOK(cook_val);
5008                         if (i > 0)
5009                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
5010                                          suffix[i - 1]);
5011                         else
5012                                 snprintf(abuf, sizeof(abuf), CDF, avail);
5013                 } else {
5014                         snprintf(tbuf, sizeof(tbuf), CDF, total);
5015                         snprintf(ubuf, sizeof(tbuf), CDF, used);
5016                         snprintf(abuf, sizeof(tbuf), CDF, avail);
5017                 }
5018
5019                 sprintf(rbuf, RDF, ratio);
5020                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
5021                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
5022                 if (type)
5023                         printf("[%s:%d]", type, index);
5024
5025                 if (stat->os_state) {
5026                         uint32_t state;
5027                         uint32_t i;
5028
5029                         printf(" ");
5030                         for (i = 0, state = stat->os_state; state != 0; i++) {
5031                                 uint32_t mask = 1 << i;
5032                                 if (!(state & mask) || mask == OS_STATE_NONROT)
5033                                         continue;
5034                                 printf("%c", obd_statfs_state2char(mask));
5035                                 state &= ~mask;
5036                         }
5037                 }
5038
5039                 printf("\n");
5040                 break;
5041         case -ENODATA:
5042                 printf(UUF": inactive device\n", uuid);
5043                 break;
5044         default:
5045                 printf(UUF": %s\n", uuid, strerror(-rc));
5046                 break;
5047         }
5048
5049         return 0;
5050 }
5051
5052 struct ll_stat_type {
5053         int   st_op;
5054         char *st_name;
5055 };
5056
5057 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
5058
5059 struct ll_statfs_data {
5060         int                     sd_index;
5061         struct obd_statfs       sd_st;
5062 };
5063
5064 struct ll_statfs_buf {
5065         int                     sb_count;
5066         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
5067 };
5068
5069 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
5070                  int ops, struct ll_statfs_buf *lsb)
5071 {
5072         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
5073         struct obd_uuid uuid_buf;
5074         char *poolname = NULL;
5075         struct ll_stat_type types[] = {
5076                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
5077                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
5078                 { .st_name = NULL } };
5079         struct ll_stat_type *tp;
5080         __u64 ost_files = 0;
5081         __u64 ost_ffree = 0;
5082         __u32 index;
5083         __u32 type;
5084         int fd;
5085         int rc = 0;
5086         int rc2;
5087
5088         if (pool) {
5089                 poolname = strchr(pool, '.');
5090                 if (poolname != NULL) {
5091                         if (strncmp(fsname, pool, strlen(fsname))) {
5092                                 fprintf(stderr, "filesystem name incorrect\n");
5093                                 return -ENODEV;
5094                         }
5095                         poolname++;
5096                 } else
5097                         poolname = pool;
5098         }
5099
5100         fd = open(mntdir, O_RDONLY);
5101         if (fd < 0) {
5102                 rc = -errno;
5103                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
5104                         strerror(errno));
5105                 return rc;
5106         }
5107
5108         if (flags & MNTDF_SHOW) {
5109                 if (flags & MNTDF_INODES)
5110                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5111                                "UUID", "Inodes", "IUsed", "IFree",
5112                                "IUse%", "Mounted on");
5113                 else
5114                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5115                                "UUID",
5116                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
5117                                "Used", "Available", "Use%", "Mounted on");
5118         }
5119
5120         for (tp = types; tp->st_name != NULL; tp++) {
5121                 bool have_ost = false;
5122
5123                 if (!(tp->st_op & ops))
5124                         continue;
5125
5126                 for (index = 0; ; index++) {
5127                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
5128                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
5129                         type = flags & MNTDF_LAZY ?
5130                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
5131                         rc2 = llapi_obd_fstatfs(fd, type, index,
5132                                                &stat_buf, &uuid_buf);
5133                         if (rc2 == -ENODEV)
5134                                 break;
5135                         if (rc2 == -EAGAIN)
5136                                 continue;
5137                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
5138                                 if (!(flags & MNTDF_VERBOSE))
5139                                         continue;
5140                         } else if (rc2 < 0 && rc == 0) {
5141                                 rc = rc2;
5142                         }
5143
5144                         /* If we have OSTs then don't report MDT block counts.
5145                          * For MDT-only filesystems the expectation is that all
5146                          * layouts have a DoM component.  For filesystems with
5147                          * OSTs, files are not necessarily going to store data
5148                          * on MDTs, and MDT space is limited to a fraction of
5149                          * OST space, so don't include it in the summary.
5150                          */
5151                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
5152                                 have_ost = true;
5153                                 sum.os_blocks = 0;
5154                                 sum.os_bfree = 0;
5155                                 sum.os_bavail = 0;
5156                         }
5157
5158                         if (poolname && tp->st_op == LL_STATFS_LOV &&
5159                             llapi_search_ost(fsname, poolname,
5160                                              obd_uuid2str(&uuid_buf)) != 1)
5161                                 continue;
5162
5163                         /* the llapi_obd_statfs() call may have returned with
5164                          * an error, but if it filled in uuid_buf we will at
5165                          * lease use that to print out a message for that OBD.
5166                          * If we didn't get anything in the uuid_buf, then fill
5167                          * it in so that we can print an error message. */
5168                         if (uuid_buf.uuid[0] == '\0')
5169                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
5170                                          "%s%04x", tp->st_name, index);
5171                         if (!rc && lsb) {
5172                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
5173                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
5174                                 lsb->sb_count++;
5175                         }
5176                         if (flags & MNTDF_SHOW)
5177                                 showdf(mntdir, &stat_buf,
5178                                        obd_uuid2str(&uuid_buf), flags,
5179                                        tp->st_name, index, rc2);
5180
5181                         if (rc2)
5182                                 continue;
5183
5184                         if (tp->st_op == LL_STATFS_LMV) {
5185                                 sum.os_ffree += stat_buf.os_ffree;
5186                                 sum.os_files += stat_buf.os_files;
5187                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
5188                                 ost_files += stat_buf.os_files;
5189                                 ost_ffree += stat_buf.os_ffree;
5190                         }
5191                         sum.os_blocks += stat_buf.os_blocks *
5192                                          stat_buf.os_bsize;
5193                         sum.os_bfree  += stat_buf.os_bfree *
5194                                          stat_buf.os_bsize;
5195                         sum.os_bavail += stat_buf.os_bavail *
5196                                          stat_buf.os_bsize;
5197                 }
5198         }
5199
5200         close(fd);
5201
5202         /* If we have _some_ OSTs, but don't have as many free objects on the
5203          * OST as inodes on the MDTs, reduce the reported number of inodes
5204          * to compensate, so that the "inodes in use" number is correct.
5205          * This should be kept in sync with ll_statfs_internal().
5206          */
5207         if (ost_files && ost_ffree < sum.os_ffree) {
5208                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
5209                 sum.os_ffree = ost_ffree;
5210         }
5211         if (flags & MNTDF_SHOW) {
5212                 printf("\n");
5213                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
5214                 printf("\n");
5215         }
5216
5217         return rc;
5218 }
5219
5220 static int ll_statfs_data_comp(const void *sd1, const void *sd2)
5221 {
5222         const struct obd_statfs *st1 = &((const struct ll_statfs_data *)sd1)->
5223                                                 sd_st;
5224         const struct obd_statfs *st2 = &((const struct ll_statfs_data *)sd2)->
5225                                                 sd_st;
5226         int r1 = obd_statfs_ratio(st1, false);
5227         int r2 = obd_statfs_ratio(st2, false);
5228         int64_t result = r1 - r2;
5229
5230         /* if both space usage are above 90, compare free inodes */
5231         if (r1 > 90 && r2 > 90)
5232                 result = st2->os_ffree - st1->os_ffree;
5233
5234         if (result < 0)
5235                 return -1;
5236         else if (result == 0)
5237                 return 0;
5238         else
5239                 return 1;
5240 }
5241
5242 /* functions */
5243 static int lfs_setdirstripe(int argc, char **argv)
5244 {
5245         char *dname;
5246         struct lfs_setstripe_args lsa = { 0 };
5247         struct llapi_stripe_param *param = NULL;
5248         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
5249         char *end;
5250         int c;
5251         char *mode_opt = NULL;
5252         bool default_stripe = false;
5253         bool delete = false;
5254         bool auto_distributed = false;
5255         bool foreign_mode = false;
5256         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
5257         mode_t previous_mode = 0;
5258         struct ll_statfs_buf *lsb = NULL;
5259         char mntdir[PATH_MAX] = "";
5260         char *xattr = NULL;
5261         __u32 type = LU_FOREIGN_TYPE_DAOS, flags = 0;
5262         struct option long_opts[] = {
5263         { .val = 'c',   .name = "count",        .has_arg = required_argument },
5264         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
5265         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
5266         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5267         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
5268         { .val = LFS_LAYOUT_FLAGS_OPT,
5269                         .name = "flags",        .has_arg = required_argument },
5270         { .val = LFS_LAYOUT_FOREIGN_OPT,
5271                         .name = "foreign",      .has_arg = optional_argument},
5272         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
5273 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
5274         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
5275         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
5276 #else
5277         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5278         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5279 #endif
5280 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5281         { .val = 'i',   .name = "index",        .has_arg = required_argument },
5282 #endif
5283         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
5284 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5285         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
5286 #endif
5287         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
5288 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
5289         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
5290         { .name = NULL } };
5291         int result = 0;
5292
5293         setstripe_args_init(&lsa);
5294
5295         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:x:",
5296                                 long_opts, NULL)) >= 0) {
5297                 switch (c) {
5298                 case 0:
5299                         /* Long options. */
5300                         break;
5301                 case 'c':
5302                 case 'T':
5303                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
5304                         if (*end != '\0') {
5305                                 fprintf(stderr,
5306                                         "%s %s: invalid stripe count '%s'\n",
5307                                         progname, argv[0], optarg);
5308                                 return CMD_HELP;
5309                         }
5310                         break;
5311                 case 'd':
5312                         delete = true;
5313                         default_stripe = true;
5314                         break;
5315                 case 'D':
5316                         default_stripe = true;
5317                         break;
5318                 case LFS_LAYOUT_FOREIGN_OPT:
5319                         if (optarg != NULL) {
5320                                 /* check pure numeric */
5321                                 type = strtoul(optarg, &end, 0);
5322                                 if (*end) {
5323                                         /* check name */
5324                                         type = check_foreign_type_name(optarg);
5325                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5326                                                 fprintf(stderr,
5327                                                         "%s %s: unknown foreign type '%s'\n",
5328                                                         progname, argv[0],
5329                                                         optarg);
5330                                                 return CMD_HELP;
5331                                         }
5332                                 }
5333                         }
5334                         foreign_mode = true;
5335                         break;
5336                 case LFS_LAYOUT_FLAGS_OPT:
5337                         flags = strtoul(optarg, &end, 16);
5338                         if (*end != '\0') {
5339                                 fprintf(stderr,
5340                                         "%s %s: bad flags '%s'\n",
5341                                         progname, argv[0], optarg);
5342                                 return CMD_HELP;
5343                         }
5344                         break;
5345 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5346                 case 't':
5347                         fprintf(stderr, "warning: '--hash-type' and '-t' "
5348                               "deprecated, use '--mdt-hash' or '-H' instead\n");
5349 #endif
5350                 case 'H':
5351                         lsa.lsa_pattern = check_hashtype(optarg);
5352                         if (lsa.lsa_pattern == 0) {
5353                                 fprintf(stderr,
5354                                         "%s %s: bad stripe hash type '%s'\n",
5355                                         progname, argv[0], optarg);
5356                                 return CMD_HELP;
5357                         }
5358                         break;
5359                 case 'i':
5360 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
5361                 case 'm':
5362 #endif
5363 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5364                         if (strcmp(argv[optind - 1], "--index") == 0)
5365                                 fprintf(stderr,
5366                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
5367                                         progname, argv[0]);
5368 #endif
5369                         lsa.lsa_nr_tgts = parse_targets(mdts,
5370                                                 sizeof(mdts) / sizeof(__u32),
5371                                                 lsa.lsa_nr_tgts, optarg, NULL);
5372                         if (lsa.lsa_nr_tgts < 0) {
5373                                 fprintf(stderr,
5374                                         "%s %s: invalid MDT target(s) '%s'\n",
5375                                         progname, argv[0], optarg);
5376                                 return CMD_HELP;
5377                         }
5378
5379                         lsa.lsa_tgts = mdts;
5380                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5381                                 lsa.lsa_stripe_off = mdts[0];
5382                         break;
5383 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
5384                 case 'm':
5385                         fprintf(stderr, "warning: '-m' is deprecated, "
5386                                 "use '--mode' or '-o' instead\n");
5387 #endif
5388                 case 'o':
5389                         mode_opt = optarg;
5390                         break;
5391                 case 'x':
5392                         xattr = optarg;
5393                         break;
5394                 default:
5395                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5396                                 progname, argv[0], argv[optind - 1]);
5397                         return CMD_HELP;
5398                 }
5399         }
5400
5401         if (optind == argc) {
5402                 fprintf(stderr, "%s %s: DIR must be specified\n",
5403                         progname, argv[0]);
5404                 return CMD_HELP;
5405         }
5406
5407         if (xattr && !foreign_mode) {
5408                 /* only print a warning as this is armless and will be
5409                  * ignored
5410                  */
5411                 fprintf(stderr,
5412                         "%s %s: xattr has been specified for non-foreign layout\n",
5413                         progname, argv[0]);
5414         } else if (foreign_mode && !xattr) {
5415                 fprintf(stderr,
5416                         "%s %s: xattr must be provided in foreign mode\n",
5417                         progname, argv[0]);
5418                 return CMD_HELP;
5419         }
5420
5421         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
5422             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
5423                 fprintf(stderr,
5424                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
5425                         progname, argv[0]);
5426                 return CMD_HELP;
5427         }
5428
5429         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
5430             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
5431                 fprintf(stderr,
5432                         "%s %s: stripe offset and count must be specified\n",
5433                         progname, argv[0]);
5434                 return CMD_HELP;
5435         }
5436
5437         if (delete &&
5438             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
5439              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
5440                 fprintf(stderr,
5441                         "%s %s: cannot specify -d with -c or -i options\n",
5442                         progname, argv[0]);
5443                 return CMD_HELP;
5444         }
5445
5446         if (mode_opt != NULL) {
5447                 mode = strtoul(mode_opt, &end, 8);
5448                 if (*end != '\0') {
5449                         fprintf(stderr,
5450                                 "%s %s: bad MODE '%s'\n",
5451                                 progname, argv[0], mode_opt);
5452                         return CMD_HELP;
5453                 }
5454                 previous_mode = umask(0);
5455         }
5456
5457         /* foreign LMV/dir case */
5458         if (foreign_mode) {
5459                 if (argc > optind + 1) {
5460                         fprintf(stderr,
5461                                 "%s %s: cannot specify multiple foreign dirs\n",
5462                                 progname, argv[0]);
5463                         return CMD_HELP;
5464                 }
5465
5466                 dname = argv[optind];
5467                 result = llapi_dir_create_foreign(dname, mode, type, flags,
5468                                                   xattr);
5469                 if (result != 0)
5470                         fprintf(stderr,
5471                                 "%s mkdir: can't create foreign dir '%s': %s\n",
5472                                 progname, dname, strerror(-result));
5473                 return result;
5474         }
5475
5476         /*
5477          * initialize stripe parameters, in case param is converted to specific,
5478          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
5479          */
5480         param = calloc(1, offsetof(typeof(*param),
5481                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
5482                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
5483         if (param == NULL) {
5484                 fprintf(stderr,
5485                         "%s %s: cannot allocate memory for parameters: %s\n",
5486                         progname, argv[0], strerror(ENOMEM));
5487                 return CMD_HELP;
5488         }
5489
5490         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
5491                 param->lsp_stripe_count = lsa.lsa_stripe_count;
5492         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5493                 param->lsp_stripe_offset = -1;
5494         else
5495                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
5496         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
5497                 param->lsp_stripe_pattern = lsa.lsa_pattern;
5498         else
5499                 param->lsp_stripe_pattern = LMV_HASH_TYPE_FNV_1A_64;
5500         param->lsp_pool = lsa.lsa_pool_name;
5501         param->lsp_is_specific = false;
5502         if (lsa.lsa_nr_tgts > 1) {
5503                 if (lsa.lsa_stripe_count > 0 &&
5504                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
5505                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
5506                         fprintf(stderr, "error: %s: stripe count %lld doesn't "
5507                                 "match the number of MDTs: %d\n",
5508                                 argv[0], lsa.lsa_stripe_count, lsa.lsa_nr_tgts);
5509                         free(param);
5510                         return CMD_HELP;
5511                 }
5512
5513                 param->lsp_is_specific = true;
5514                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
5515                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
5516         }
5517
5518         if (!default_stripe && lsa.lsa_pattern == LMV_HASH_TYPE_SPACE) {
5519                 fprintf(stderr, "%s %s: can only specify -H space with -D\n",
5520                         progname, argv[0]);
5521                 free(param);
5522                 return CMD_HELP;
5523         }
5524
5525         dname = argv[optind];
5526         do {
5527                 if (default_stripe) {
5528                         result = llapi_dir_set_default_lmv(dname, param);
5529                         if (result)
5530                                 fprintf(stderr,
5531                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
5532                                         progname, dname, strerror(-result));
5533                         continue;
5534                 }
5535
5536                 /*
5537                  * if current \a dname isn't under the same \a mntdir as the
5538                  * last one, and the last one was auto-distributed, restore
5539                  * \a param.
5540                  */
5541                 if (mntdir[0] != '\0' &&
5542                     strncmp(dname, mntdir, strlen(mntdir)) &&
5543                     auto_distributed) {
5544                         param->lsp_is_specific = false;
5545                         param->lsp_stripe_offset = -1;
5546                         auto_distributed = false;
5547                 }
5548
5549                 /*
5550                  * TODO: when MDT can allocate object with QoS (LU-9435), below
5551                  * code should be removed, instead we should let LMV to allocate
5552                  * the starting MDT object, and then let LOD allocate other MDT
5553                  * objects.
5554                  */
5555                 if (!param->lsp_is_specific && param->lsp_stripe_offset == -1) {
5556                         char path[PATH_MAX] = "";
5557
5558                         if (!lsb) {
5559                                 lsb = malloc(sizeof(*lsb));
5560                                 if (!lsb) {
5561                                         result = -ENOMEM;
5562                                         break;
5563                                 }
5564                         }
5565                         lsb->sb_count = 0;
5566
5567                         /* use mntdir for dirname() temporarily */
5568                         strncpy(mntdir, dname, sizeof(mntdir) - 1);
5569                         if (!realpath(dirname(mntdir), path)) {
5570                                 result = -errno;
5571                                 fprintf(stderr,
5572                                         "error: invalid path '%s': %s\n",
5573                                         argv[optind], strerror(errno));
5574                                 break;
5575                         }
5576                         mntdir[0] = '\0';
5577
5578                         result = llapi_search_mounts(path, 0, mntdir, NULL);
5579                         if (result < 0 || mntdir[0] == '\0') {
5580                                 fprintf(stderr,
5581                                         "No suitable Lustre mount found\n");
5582                                 break;
5583                         }
5584
5585                         result = mntdf(mntdir, NULL, NULL, 0, LL_STATFS_LMV,
5586                                        lsb);
5587                         if (result < 0)
5588                                 break;
5589
5590                         if (param->lsp_stripe_count > lsb->sb_count) {
5591                                 fprintf(stderr,
5592                                         "error: stripe count %d is too big\n",
5593                                         param->lsp_stripe_count);
5594                                 result = -ERANGE;
5595                                 break;
5596                         }
5597
5598                         qsort(lsb->sb_buf, lsb->sb_count,
5599                               sizeof(struct ll_statfs_data),
5600                               ll_statfs_data_comp);
5601
5602                         auto_distributed = true;
5603                 }
5604
5605                 if (auto_distributed) {
5606                         int r;
5607                         int nr = MAX(param->lsp_stripe_count,
5608                                      lsb->sb_count / 2);
5609
5610                         /* don't use server whose usage is above 90% */
5611                         while (nr != param->lsp_stripe_count &&
5612                                obd_statfs_ratio(&lsb->sb_buf[nr].sd_st, false) >
5613                                90)
5614                                 nr = MAX(param->lsp_stripe_count, nr / 2);
5615
5616                         /* get \a r between [0, nr) */
5617                         r = rand() % nr;
5618
5619                         param->lsp_stripe_offset = lsb->sb_buf[r].sd_index;
5620                         if (param->lsp_stripe_count > 1) {
5621                                 int i = 0;
5622
5623                                 param->lsp_is_specific = true;
5624                                 for (; i < param->lsp_stripe_count; i++)
5625                                         param->lsp_tgts[(i + r) % nr] =
5626                                                 lsb->sb_buf[i].sd_index;
5627                         }
5628                 }
5629
5630                 result = llapi_dir_create(dname, mode, param);
5631                 if (result)
5632                         fprintf(stderr,
5633                                 "%s setdirstripe: cannot create dir '%s': %s\n",
5634                                 progname, dname, strerror(-result));
5635         } while (!result && (dname = argv[++optind]));
5636
5637         if (mode_opt != NULL)
5638                 umask(previous_mode);
5639
5640         free(lsb);
5641         free(param);
5642         return result;
5643 }
5644
5645 /* functions */
5646 static int lfs_rmentry(int argc, char **argv)
5647 {
5648         char *dname;
5649         int   index;
5650         int   result = 0;
5651
5652         if (argc <= 1) {
5653                 fprintf(stderr, "error: %s: missing dirname\n",
5654                         argv[0]);
5655                 return CMD_HELP;
5656         }
5657
5658         index = 1;
5659         dname = argv[index];
5660         while (dname != NULL) {
5661                 result = llapi_direntry_remove(dname);
5662                 if (result) {
5663                         fprintf(stderr, "error: %s: remove dir entry '%s' "
5664                                 "failed\n", argv[0], dname);
5665                         break;
5666                 }
5667                 dname = argv[++index];
5668         }
5669         return result;
5670 }
5671
5672 static int lfs_mv(int argc, char **argv)
5673 {
5674         struct lmv_user_md lmu = { LMV_USER_MAGIC };
5675         struct find_param param = {
5676                 .fp_max_depth = -1,
5677                 .fp_mdt_index = -1,
5678         };
5679         char *end;
5680         int c;
5681         int rc = 0;
5682         struct option long_opts[] = {
5683         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5684         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5685         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5686         { .name = NULL } };
5687
5688         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
5689                 switch (c) {
5690 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5691                 case 'M':
5692                         fprintf(stderr, "warning: '-M' deprecated"
5693                                 ", use '--mdt-index' or '-m' instead\n");
5694 #endif
5695                 case 'm':
5696                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
5697                         if (*end != '\0') {
5698                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
5699                                         progname, optarg);
5700                                 return CMD_HELP;
5701                         }
5702                         break;
5703                 case 'v':
5704                         param.fp_verbose = VERBOSE_DETAIL;
5705                         break;
5706                 default:
5707                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
5708                                 progname, argv[optind - 1]);
5709                         return CMD_HELP;
5710                 }
5711         }
5712
5713         if (lmu.lum_stripe_offset == -1) {
5714                 fprintf(stderr, "%s mv: MDT index must be specified\n",
5715                         progname);
5716                 return CMD_HELP;
5717         }
5718
5719         if (optind >= argc) {
5720                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
5721                 return CMD_HELP;
5722         }
5723
5724
5725         /* initialize migrate mdt parameters */
5726         param.fp_lmv_md = &lmu;
5727         param.fp_migrate = 1;
5728         rc = llapi_migrate_mdt(argv[optind], &param);
5729         if (rc != 0)
5730                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
5731                         progname, argv[optind], param.fp_mdt_index,
5732                         strerror(-rc));
5733         return rc;
5734 }
5735
5736 static int lfs_osts(int argc, char **argv)
5737 {
5738         return lfs_tgts(argc, argv);
5739 }
5740
5741 static int lfs_mdts(int argc, char **argv)
5742 {
5743         return lfs_tgts(argc, argv);
5744 }
5745
5746 static int lfs_df(int argc, char **argv)
5747 {
5748         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5749         enum mntdf_flags flags = MNTDF_SHOW;
5750         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
5751         int c, rc = 0, index = 0;
5752         char fsname[PATH_MAX] = "", *pool_name = NULL;
5753         struct option long_opts[] = {
5754         { .val = 'h',   .name = "human-readable",
5755                                                 .has_arg = no_argument },
5756         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
5757         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
5758         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
5759         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5760         { .name = NULL} };
5761
5762         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
5763                 switch (c) {
5764                 case 'h':
5765                         flags |= MNTDF_COOKED;
5766                         break;
5767                 case 'i':
5768                         flags |= MNTDF_INODES;
5769                         break;
5770                 case 'l':
5771                         flags |= MNTDF_LAZY;
5772                         break;
5773                 case 'p':
5774                         pool_name = optarg;
5775                         break;
5776                 case 'v':
5777                         flags |= MNTDF_VERBOSE;
5778                         break;
5779                 default:
5780                         return CMD_HELP;
5781                 }
5782         }
5783         if (optind < argc && !realpath(argv[optind], path)) {
5784                 rc = -errno;
5785                 fprintf(stderr, "error: invalid path '%s': %s\n",
5786                         argv[optind], strerror(-rc));
5787                 return rc;
5788         }
5789
5790         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5791                 /* Check if we have a mount point */
5792                 if (mntdir[0] == '\0')
5793                         continue;
5794
5795                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
5796                 if (rc || path[0] != '\0')
5797                         break;
5798                 fsname[0] = '\0'; /* avoid matching in next loop */
5799                 mntdir[0] = '\0'; /* avoid matching in next loop */
5800         }
5801
5802         return rc;
5803 }
5804
5805 static int print_instance(const char *mntdir, char *fsname, size_t fsnamelen,
5806                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
5807 {
5808         char *buf = fsname;
5809
5810         /* llapi_search_mounts() fills "fsname", but that is not called if
5811          * explicit paths are specified on the command-line
5812          */
5813         if (opt_instance || (opt_fsname && fsname[0] == '\0')) {
5814                 int rc = llapi_getname(mntdir, fsname, fsnamelen);
5815
5816                 if (rc < 0) {
5817                         fprintf(stderr, "cannot get instance for '%s': %s\n",
5818                                 mntdir, strerror(-rc));
5819                         return rc;
5820                 }
5821                 buf = fsname;
5822                 if (!opt_instance) {
5823                         /* print only the fsname name */
5824                         buf = strchr(fsname, '-');
5825                         if (buf)
5826                                 *buf = '\0';
5827                         buf = fsname;
5828                 } else if (!opt_fsname) {
5829                         /* print only the instance name */
5830                         buf = strchr(fsname, '-');
5831                         if (buf)
5832                                 buf++;
5833                         else
5834                                 buf = fsname;
5835                 }
5836         } else if (opt_fsname) {
5837                 /* print only the fsname */
5838                 buf = fsname;
5839         }
5840
5841         printf("%s %s\n", buf, opt_mntdir ? mntdir : "");
5842
5843         return 0;
5844 }
5845
5846 static int lfs_getname(int argc, char **argv)
5847 {
5848         struct option long_opts[] = {
5849         { .val = 'h',   .name = "help",         .has_arg = no_argument },
5850         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
5851         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
5852         { .name = NULL} };
5853         bool opt_instance = false, opt_fsname = false;
5854         char fsname[PATH_MAX] = "";
5855         int rc = 0, rc2, c;
5856
5857         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
5858                 switch (c) {
5859                 case 'i':
5860                         opt_instance = true;
5861                         break;
5862                 case 'n':
5863                         opt_fsname = true;
5864                         break;
5865                 case 'h':
5866                 default:
5867                         return CMD_HELP;
5868                 }
5869         }
5870
5871         /* If neither option is given, print both instance and fsname */
5872         if (!opt_instance && !opt_fsname)
5873                 opt_instance = opt_fsname = true;
5874
5875         if (optind == argc) { /* no paths specified, get all paths. */
5876                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
5877                 int index = 0;
5878
5879                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5880                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
5881                                              opt_instance, opt_fsname, true);
5882                         if (!rc)
5883                                 rc = rc2;
5884                         path[0] = fsname[0] = mntdir[0] = '\0';
5885                 }
5886         } else { /* paths specified, only attempt to search these. */
5887                 bool opt_mntdir;
5888
5889                 /* if only one path is given, print only requested info */
5890                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
5891
5892                 for (; optind < argc; optind++) {
5893                         rc2 = print_instance(argv[optind], fsname,
5894                                              sizeof(fsname), opt_instance,
5895                                              opt_fsname, opt_mntdir);
5896                         if (!rc)
5897                                 rc = rc2;
5898                         fsname[0] = '\0';
5899                 }
5900         }
5901
5902         return rc;
5903 }
5904
5905 static int lfs_check(int argc, char **argv)
5906 {
5907         char mntdir[PATH_MAX] = {'\0'};
5908         int num_types = 1;
5909         char *obd_types[3];
5910         char obd_type1[4];
5911         char obd_type2[4];
5912         char obd_type3[4];
5913         int rc;
5914
5915         if (argc != 2) {
5916                 fprintf(stderr, "%s check: server type must be specified\n",
5917                         progname);
5918                 return CMD_HELP;
5919         }
5920
5921         obd_types[0] = obd_type1;
5922         obd_types[1] = obd_type2;
5923         obd_types[2] = obd_type3;
5924
5925         if (strcmp(argv[1], "osts") == 0) {
5926                 strcpy(obd_types[0], "osc");
5927         } else if (strcmp(argv[1], "mdts") == 0 ||
5928                    strcmp(argv[1], "mds") == 0) {
5929                 strcpy(obd_types[0], "mdc");
5930         } else if (strcmp(argv[1], "mgts") == 0) {
5931                 strcpy(obd_types[0], "mgc");
5932         } else if (strcmp(argv[1], "all") == 0 ||
5933                    strcmp(argv[1], "servers") == 0) {
5934                 num_types = 3;
5935                 strcpy(obd_types[0], "osc");
5936                 strcpy(obd_types[1], "mdc");
5937                 strcpy(obd_types[2], "mgc");
5938         } else {
5939                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
5940                         progname, argv[1]);
5941                 return CMD_HELP;
5942         }
5943
5944         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
5945         if (rc < 0 || mntdir[0] == '\0') {
5946                 fprintf(stderr,
5947                         "%s check: cannot find mounted Lustre filesystem: %s\n",
5948                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
5949                 return rc;
5950         }
5951
5952         rc = llapi_target_check(num_types, obd_types, mntdir);
5953         if (rc)
5954                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
5955                         progname, argv[1], strerror(-rc));
5956
5957         return rc;
5958
5959 }
5960
5961 #ifdef HAVE_SYS_QUOTA_H
5962 #define ARG2INT(nr, str, msg)                                           \
5963 do {                                                                    \
5964         char *endp;                                                     \
5965         nr = strtol(str, &endp, 0);                                     \
5966         if (*endp != '\0') {                                            \
5967                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
5968                         progname, msg, str);                            \
5969                 return CMD_HELP;                                        \
5970         }                                                               \
5971 } while (0)
5972
5973 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
5974
5975 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
5976  * returns the value or ULONG_MAX on integer overflow or incorrect format
5977  * Notes:
5978  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
5979  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
5980  *        3. empty integer value is interpreted as 0
5981  */
5982 static unsigned long str2sec(const char* timestr)
5983 {
5984         const char spec[] = "smhdw";
5985         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5986         unsigned long val = 0;
5987         char *tail;
5988
5989         if (strpbrk(timestr, spec) == NULL) {
5990                 /* no specifiers inside the time string,
5991                    should treat it as an integer value */
5992                 val = strtoul(timestr, &tail, 10);
5993                 return *tail ? ULONG_MAX : val;
5994         }
5995
5996         /* format string is XXwXXdXXhXXmXXs */
5997         while (*timestr) {
5998                 unsigned long v;
5999                 int ind;
6000                 char* ptr;
6001
6002                 v = strtoul(timestr, &tail, 10);
6003                 if (v == ULONG_MAX || *tail == '\0')
6004                         /* value too large (ULONG_MAX or more)
6005                            or missing specifier */
6006                         goto error;
6007
6008                 ptr = strchr(spec, *tail);
6009                 if (ptr == NULL)
6010                         /* unknown specifier */
6011                         goto error;
6012
6013                 ind = ptr - spec;
6014
6015                 /* check if product will overflow the type */
6016                 if (!(v < ULONG_MAX / mult[ind]))
6017                         goto error;
6018
6019                 ADD_OVERFLOW(val, mult[ind] * v);
6020                 if (val == ULONG_MAX)
6021                         goto error;
6022
6023                 timestr = tail + 1;
6024         }
6025
6026         return val;
6027
6028 error:
6029         return ULONG_MAX;
6030 }
6031
6032 #define ARG2ULL(nr, str, def_units)                                     \
6033 do {                                                                    \
6034         unsigned long long limit, units = def_units;                    \
6035         int rc;                                                         \
6036                                                                         \
6037         rc = llapi_parse_size(str, &limit, &units, 1);                  \
6038         if (rc < 0) {                                                   \
6039                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
6040                         progname, str);                                 \
6041                 return CMD_HELP;                                        \
6042         }                                                               \
6043         nr = limit;                                                     \
6044 } while (0)
6045
6046 static inline int has_times_option(int argc, char **argv)
6047 {
6048         int i;
6049
6050         for (i = 1; i < argc; i++)
6051                 if (!strcmp(argv[i], "-t"))
6052                         return 1;
6053
6054         return 0;
6055 }
6056
6057 int lfs_setquota_times(int argc, char **argv)
6058 {
6059         int c, rc;
6060         struct if_quotactl qctl;
6061         char *mnt, *obd_type = (char *)qctl.obd_type;
6062         struct obd_dqblk *dqb = &qctl.qc_dqblk;
6063         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
6064         struct option long_opts[] = {
6065         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
6066         { .val = 'g',   .name = "group",        .has_arg = no_argument },
6067         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
6068         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
6069         { .val = 't',   .name = "times",        .has_arg = no_argument },
6070         { .val = 'u',   .name = "user",         .has_arg = no_argument },
6071         { .name = NULL } };
6072         int qtype;
6073
6074         memset(&qctl, 0, sizeof(qctl));
6075         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
6076         qctl.qc_type = ALLQUOTA;
6077
6078         while ((c = getopt_long(argc, argv, "b:gi:ptu",
6079                                 long_opts, NULL)) != -1) {
6080                 switch (c) {
6081                 case 'u':
6082                         qtype = USRQUOTA;
6083                         goto quota_type;
6084                 case 'g':
6085                         qtype = GRPQUOTA;
6086                         goto quota_type;
6087                 case 'p':
6088                         qtype = PRJQUOTA;
6089 quota_type:
6090                         if (qctl.qc_type != ALLQUOTA) {
6091                                 fprintf(stderr, "error: -u/g/p can't be used "
6092                                                 "more than once\n");
6093                                 return CMD_HELP;
6094                         }
6095                         qctl.qc_type = qtype;
6096                         break;
6097                 case 'b':
6098                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
6099                                 fprintf(stderr, "error: bad block-grace: %s\n",
6100                                         optarg);
6101                                 return CMD_HELP;
6102                         }
6103                         dqb->dqb_valid |= QIF_BTIME;
6104                         break;
6105                 case 'i':
6106                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
6107                                 fprintf(stderr, "error: bad inode-grace: %s\n",
6108                                         optarg);
6109                                 return CMD_HELP;
6110                         }
6111                         dqb->dqb_valid |= QIF_ITIME;
6112                         break;
6113                 case 't': /* Yes, of course! */
6114                         break;
6115                 default: /* getopt prints error message for us when opterr != 0 */
6116                         return CMD_HELP;
6117                 }
6118         }
6119
6120         if (qctl.qc_type == ALLQUOTA) {
6121                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
6122                 return CMD_HELP;
6123         }
6124
6125         if (optind != argc - 1) {
6126                 fprintf(stderr, "error: unexpected parameters encountered\n");
6127                 return CMD_HELP;
6128         }
6129
6130         if ((dqb->dqb_valid | QIF_BTIME && dqi->dqi_bgrace >= UINT_MAX) ||
6131             (dqb->dqb_valid | QIF_ITIME && dqi->dqi_igrace >= UINT_MAX)) {
6132                 fprintf(stderr, "error: grace time is too large\n");
6133                 return CMD_HELP;
6134         }
6135
6136         mnt = argv[optind];
6137         rc = llapi_quotactl(mnt, &qctl);
6138         if (rc) {
6139                 if (*obd_type)
6140                         fprintf(stderr, "%s %s ", obd_type,
6141                                 obd_uuid2str(&qctl.obd_uuid));
6142                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
6143                 return rc;
6144         }
6145
6146         return 0;
6147 }
6148
6149 #define BSLIMIT (1 << 0)
6150 #define BHLIMIT (1 << 1)
6151 #define ISLIMIT (1 << 2)
6152 #define IHLIMIT (1 << 3)
6153
6154 int lfs_setquota(int argc, char **argv)
6155 {
6156         int c, rc = 0;
6157         struct if_quotactl qctl;
6158         char *mnt, *obd_type = (char *)qctl.obd_type;
6159         struct obd_dqblk *dqb = &qctl.qc_dqblk;
6160         struct option long_opts[] = {
6161         { .val = 'b',   .name = "block-softlimit",
6162                                                 .has_arg = required_argument },
6163         { .val = 'B',   .name = "block-hardlimit",
6164                                                 .has_arg = required_argument },
6165         { .val = 'd',   .name = "default",      .has_arg = no_argument },
6166         { .val = 'g',   .name = "group",        .has_arg = required_argument },
6167         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
6168         { .val = 'i',   .name = "inode-softlimit",
6169                                                 .has_arg = required_argument },
6170         { .val = 'I',   .name = "inode-hardlimit",
6171                                                 .has_arg = required_argument },
6172         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
6173         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
6174         { .val = 'u',   .name = "user",         .has_arg = required_argument },
6175         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
6176         { .name = NULL } };
6177         unsigned limit_mask = 0;
6178         char *endptr;
6179         bool use_default = false;
6180         int qtype;
6181
6182         if (has_times_option(argc, argv))
6183                 return lfs_setquota_times(argc, argv);
6184
6185         memset(&qctl, 0, sizeof(qctl));
6186         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
6187         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
6188                                   * so it can be used as a marker that qc_type
6189                                   * isn't reinitialized from command line */
6190
6191         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:U",
6192                 long_opts, NULL)) != -1) {
6193                 switch (c) {
6194                 case 'U':
6195                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6196                         qtype = USRQUOTA;
6197                         qctl.qc_id = 0;
6198                         goto quota_type_def;
6199                 case 'u':
6200                         qtype = USRQUOTA;
6201                         rc = name2uid(&qctl.qc_id, optarg);
6202                         goto quota_type;
6203                 case 'G':
6204                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6205                         qtype = GRPQUOTA;
6206                         qctl.qc_id = 0;
6207                         goto quota_type_def;
6208                 case 'g':
6209                         qtype = GRPQUOTA;
6210                         rc = name2gid(&qctl.qc_id, optarg);
6211                         goto quota_type;
6212                 case 'P':
6213                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6214                         qtype = PRJQUOTA;
6215                         qctl.qc_id = 0;
6216                         goto quota_type_def;
6217                 case 'p':
6218                         qtype = PRJQUOTA;
6219                         rc = name2projid(&qctl.qc_id, optarg);
6220 quota_type:
6221                         if (rc) {
6222                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
6223                                 if (*endptr != '\0') {
6224                                         fprintf(stderr, "%s setquota: invalid"
6225                                                 " id '%s'\n", progname, optarg);
6226                                         return -1;
6227                                 }
6228                         }
6229
6230                         if (qctl.qc_id == 0) {
6231                                 fprintf(stderr, "%s setquota: can't set quota"
6232                                         " for root usr/group/project.\n",
6233                                         progname);
6234                                 return -1;
6235                         }
6236
6237 quota_type_def:
6238                         if (qctl.qc_type != ALLQUOTA) {
6239                                 fprintf(stderr,
6240                                         "%s setquota: only one of -u, -U, -g,"
6241                                         " -G, -p or -P may be specified\n",
6242                                         progname);
6243                                 return CMD_HELP;
6244                         }
6245                         qctl.qc_type = qtype;
6246                         break;
6247                 case 'd':
6248                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6249                         use_default = true;
6250                         break;
6251                 case 'b':
6252                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
6253                         dqb->dqb_bsoftlimit >>= 10;
6254                         limit_mask |= BSLIMIT;
6255                         if (dqb->dqb_bsoftlimit &&
6256                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
6257                                 fprintf(stderr,
6258                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
6259                                         "See '%s help setquota' or Lustre manual for details\n",
6260                                         progname, dqb->dqb_bsoftlimit,
6261                                         progname);
6262                         break;
6263                 case 'B':
6264                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
6265                         dqb->dqb_bhardlimit >>= 10;
6266                         limit_mask |= BHLIMIT;
6267                         if (dqb->dqb_bhardlimit &&
6268                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
6269                                 fprintf(stderr,
6270                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
6271                                         "See '%s help setquota' or Lustre manual for details\n",
6272                                         progname, dqb->dqb_bhardlimit,
6273                                         progname);
6274                         break;
6275                 case 'i':
6276                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
6277                         limit_mask |= ISLIMIT;
6278                         if (dqb->dqb_isoftlimit &&
6279                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
6280                                 fprintf(stderr,
6281                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
6282                                         "See '%s help setquota' or Lustre manual for details\n",
6283                                         progname, dqb->dqb_isoftlimit,
6284                                         progname);
6285                         break;
6286                 case 'I':
6287                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
6288                         limit_mask |= IHLIMIT;
6289                         if (dqb->dqb_ihardlimit &&
6290                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
6291                                 fprintf(stderr,
6292                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
6293                                         "See '%s help setquota' or Lustre manual for details\n",
6294                                         progname, dqb->dqb_ihardlimit,
6295                                         progname);
6296                         break;
6297                 default:
6298                         fprintf(stderr,
6299                                 "%s setquota: unrecognized option '%s'\n",
6300                                 progname, argv[optind - 1]);
6301                         return CMD_HELP;
6302                 }
6303         }
6304
6305         if (qctl.qc_type == ALLQUOTA) {
6306                 fprintf(stderr,
6307                         "%s setquota: either -u or -g must be specified\n",
6308                         progname);
6309                 return CMD_HELP;
6310         }
6311
6312         if (!use_default && limit_mask == 0) {
6313                 fprintf(stderr,
6314                         "%s setquota: at least one limit must be specified\n",
6315                         progname);
6316                 return CMD_HELP;
6317         }
6318
6319         if (use_default && limit_mask != 0) {
6320                 fprintf(stderr,
6321                         "%s setquota: limits should not be specified when"
6322                         " using default quota\n",
6323                         progname);
6324                 return CMD_HELP;
6325         }
6326
6327         if (use_default && qctl.qc_id == 0) {
6328                 fprintf(stderr,
6329                         "%s setquota: can not set default quota for root"
6330                         " user/group/project\n",
6331                         progname);
6332                 return CMD_HELP;
6333         }
6334
6335         if (optind != argc - 1) {
6336                 fprintf(stderr,
6337                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
6338                         progname, argv[optind]);
6339                 return CMD_HELP;
6340         }
6341
6342         mnt = argv[optind];
6343
6344         if (use_default) {
6345                 dqb->dqb_bhardlimit = 0;
6346                 dqb->dqb_bsoftlimit = 0;
6347                 dqb->dqb_ihardlimit = 0;
6348                 dqb->dqb_isoftlimit = 0;
6349                 dqb->dqb_itime = 0;
6350                 dqb->dqb_btime = 0;
6351                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
6352         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
6353                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
6354                 /* sigh, we can't just set blimits/ilimits */
6355                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
6356                                                .qc_type = qctl.qc_type,
6357                                                .qc_id   = qctl.qc_id};
6358
6359                 rc = llapi_quotactl(mnt, &tmp_qctl);
6360                 if (rc < 0)
6361                         return rc;
6362
6363                 if (!(limit_mask & BHLIMIT))
6364                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
6365                 if (!(limit_mask & BSLIMIT))
6366                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
6367                 if (!(limit_mask & IHLIMIT))
6368                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
6369                 if (!(limit_mask & ISLIMIT))
6370                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
6371
6372                 /* Keep grace times if we have got no softlimit arguments */
6373                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
6374                         dqb->dqb_valid |= QIF_BTIME;
6375                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
6376                 }
6377
6378                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
6379                         dqb->dqb_valid |= QIF_ITIME;
6380                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
6381                 }
6382         }
6383
6384         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
6385         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
6386
6387         rc = llapi_quotactl(mnt, &qctl);
6388         if (rc) {
6389                 if (*obd_type)
6390                         fprintf(stderr,
6391                                 "%s setquota: cannot quotactl '%s' '%s': %s",
6392                                 progname, obd_type,
6393                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
6394                 return rc;
6395         }
6396
6397         return 0;
6398 }
6399
6400 /* Converts seconds value into format string
6401  * result is returned in buf
6402  * Notes:
6403  *        1. result is in descenting order: 1w2d3h4m5s
6404  *        2. zero fields are not filled (except for p. 3): 5d1s
6405  *        3. zero seconds value is presented as "0s"
6406  */
6407 static char * __sec2str(time_t seconds, char *buf)
6408 {
6409         const char spec[] = "smhdw";
6410         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6411         unsigned long c;
6412         char *tail = buf;
6413         int i;
6414
6415         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
6416                 c = seconds / mult[i];
6417
6418                 if (c > 0 || (i == 0 && buf == tail))
6419                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
6420
6421                 seconds %= mult[i];
6422         }
6423
6424         return tail;
6425 }
6426
6427 static void sec2str(time_t seconds, char *buf, int rc)
6428 {
6429         char *tail = buf;
6430
6431         if (rc)
6432                 *tail++ = '[';
6433
6434         tail = __sec2str(seconds, tail);
6435
6436         if (rc && tail - buf < 39) {
6437                 *tail++ = ']';
6438                 *tail++ = 0;
6439         }
6440 }
6441
6442 static void diff2str(time_t seconds, char *buf, time_t now)
6443 {
6444
6445         buf[0] = 0;
6446         if (!seconds)
6447                 return;
6448         if (seconds <= now) {
6449                 strcpy(buf, "none");
6450                 return;
6451         }
6452         __sec2str(seconds - now, buf);
6453 }
6454
6455 static void print_quota_title(char *name, struct if_quotactl *qctl,
6456                               bool human_readable, bool show_default)
6457 {
6458         if (show_default) {
6459                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
6460                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
6461                        "Filesystem", "bquota", "blimit", "bgrace",
6462                        "iquota", "ilimit", "igrace");
6463         } else {
6464                 printf("Disk quotas for %s %s (%cid %u):\n",
6465                        qtype_name(qctl->qc_type), name,
6466                        *qtype_name(qctl->qc_type), qctl->qc_id);
6467                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
6468                        "Filesystem", human_readable ? "used" : "kbytes",
6469                        "quota", "limit", "grace",
6470                        "files", "quota", "limit", "grace");
6471         }
6472 }
6473
6474 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
6475 {
6476         if (!h) {
6477                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
6478         } else {
6479                 if (num >> 40)
6480                         snprintf(buf, buflen, "%5.4gP",
6481                                  (double)num / ((__u64)1 << 40));
6482                 else if (num >> 30)
6483                         snprintf(buf, buflen, "%5.4gT",
6484                                  (double)num / (1 << 30));
6485                 else if (num >> 20)
6486                         snprintf(buf, buflen, "%5.4gG",
6487                                  (double)num / (1 << 20));
6488                 else if (num >> 10)
6489                         snprintf(buf, buflen, "%5.4gM",
6490                                  (double)num / (1 << 10));
6491                 else
6492                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
6493         }
6494 }
6495
6496 #define STRBUF_LEN      32
6497 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
6498                         int rc, bool h, bool show_default)
6499 {
6500         time_t now;
6501
6502         time(&now);
6503
6504         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
6505             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
6506                 int bover = 0, iover = 0;
6507                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
6508                 char numbuf[3][STRBUF_LEN];
6509                 char timebuf[40];
6510                 char strbuf[STRBUF_LEN];
6511
6512                 if (dqb->dqb_bhardlimit &&
6513                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
6514                         bover = 1;
6515                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
6516                         if (dqb->dqb_btime > now) {
6517                                 bover = 2;
6518                         } else {
6519                                 bover = 3;
6520                         }
6521                 }
6522
6523                 if (dqb->dqb_ihardlimit &&
6524                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
6525                         iover = 1;
6526                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
6527                         if (dqb->dqb_itime > now) {
6528                                 iover = 2;
6529                         } else {
6530                                 iover = 3;
6531                         }
6532                 }
6533
6534
6535                 if (strlen(mnt) > 15)
6536                         printf("%s\n%15s", mnt, "");
6537                 else
6538                         printf("%15s", mnt);
6539
6540                 if (bover)
6541                         diff2str(dqb->dqb_btime, timebuf, now);
6542                 else if (show_default)
6543                         snprintf(timebuf, sizeof(timebuf), "%llu",
6544                                  dqb->dqb_btime);
6545
6546                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
6547                            strbuf, sizeof(strbuf), h);
6548                 if (rc == -EREMOTEIO)
6549                         sprintf(numbuf[0], "%s*", strbuf);
6550                 else
6551                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
6552                                 "%s" : "[%s]", strbuf);
6553
6554                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
6555                 if (type == QC_GENERAL)
6556                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
6557                                 "%s" : "[%s]", strbuf);
6558                 else
6559                         sprintf(numbuf[1], "%s", "-");
6560
6561                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
6562                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
6563                         "%s" : "[%s]", strbuf);
6564
6565                 if (show_default)
6566                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6567                 else
6568                         printf(" %7s%c %6s %7s %7s",
6569                                numbuf[0], bover ? '*' : ' ', numbuf[1],
6570                                numbuf[2], bover > 1 ? timebuf : "-");
6571
6572
6573                 if (iover)
6574                         diff2str(dqb->dqb_itime, timebuf, now);
6575                 else if (show_default)
6576                         snprintf(timebuf, sizeof(timebuf), "%llu",
6577                                  dqb->dqb_itime);
6578
6579                 snprintf(numbuf[0], sizeof(numbuf),
6580                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
6581                          (uintmax_t)dqb->dqb_curinodes);
6582
6583                 if (type == QC_GENERAL)
6584                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
6585                                 "%ju" : "[%ju]",
6586                                 (uintmax_t)dqb->dqb_isoftlimit);
6587                 else
6588                         sprintf(numbuf[1], "%s", "-");
6589
6590                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
6591                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
6592
6593                 if (show_default)
6594                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6595                 else if (type != QC_OSTIDX)
6596                         printf(" %7s%c %6s %7s %7s",
6597                                numbuf[0], iover ? '*' : ' ', numbuf[1],
6598                                numbuf[2], iover > 1 ? timebuf : "-");
6599                 else
6600                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
6601                 printf("\n");
6602
6603         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
6604                    qctl->qc_cmd == Q_GETOINFO) {
6605                 char bgtimebuf[40];
6606                 char igtimebuf[40];
6607
6608                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
6609                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
6610                 printf("Block grace time: %s; Inode grace time: %s\n",
6611                        bgtimebuf, igtimebuf);
6612         }
6613 }
6614
6615 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
6616                            bool h, __u64 *total)
6617 {
6618         int rc = 0, rc1 = 0, count = 0;
6619         __u32 valid = qctl->qc_valid;
6620
6621         rc = llapi_get_obd_count(mnt, &count, is_mdt);
6622         if (rc) {
6623                 fprintf(stderr, "can not get %s count: %s\n",
6624                         is_mdt ? "mdt": "ost", strerror(-rc));
6625                 return rc;
6626         }
6627
6628         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
6629                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
6630                 rc = llapi_quotactl(mnt, qctl);
6631                 if (rc) {
6632                         /* It is remote client case. */
6633                         if (rc == -EOPNOTSUPP) {
6634                                 rc = 0;
6635                                 goto out;
6636                         }
6637
6638                         if (!rc1)
6639                                 rc1 = rc;
6640                         fprintf(stderr, "quotactl %s%d failed.\n",
6641                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
6642                         continue;
6643                 }
6644
6645                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
6646                             qctl->qc_valid, 0, h, false);
6647                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
6648                                    qctl->qc_dqblk.dqb_bhardlimit;
6649         }
6650 out:
6651         qctl->qc_valid = valid;
6652         return rc ? : rc1;
6653 }
6654
6655 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
6656                            int verbose, int quiet, bool human_readable,
6657                            bool show_default)
6658 {
6659         int rc1 = 0, rc2 = 0, rc3 = 0;
6660         char *obd_type = (char *)qctl->obd_type;
6661         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
6662         __u64 total_ialloc = 0, total_balloc = 0;
6663         bool use_default_for_blk = false;
6664         bool use_default_for_file = false;
6665         int inacc;
6666
6667         rc1 = llapi_quotactl(mnt, qctl);
6668         if (rc1 < 0) {
6669                 switch (rc1) {
6670                 case -ESRCH:
6671                         fprintf(stderr, "%s quotas are not enabled.\n",
6672                                 qtype_name(qctl->qc_type));
6673                         goto out;
6674                 case -EPERM:
6675                         fprintf(stderr, "Permission denied.\n");
6676                 case -ENODEV:
6677                 case -ENOENT:
6678                         /* We already got error message. */
6679                         goto out;
6680                 default:
6681                         fprintf(stderr, "Unexpected quotactl error: %s\n",
6682                                 strerror(-rc1));
6683                 }
6684         }
6685
6686         if (!show_default && qctl->qc_id == 0) {
6687                 qctl->qc_dqblk.dqb_bhardlimit = 0;
6688                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
6689                 qctl->qc_dqblk.dqb_ihardlimit = 0;
6690                 qctl->qc_dqblk.dqb_isoftlimit = 0;
6691                 qctl->qc_dqblk.dqb_btime = 0;
6692                 qctl->qc_dqblk.dqb_itime = 0;
6693                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
6694         }
6695
6696         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
6697             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
6698                 use_default_for_blk = true;
6699                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
6700         }
6701
6702         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
6703             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
6704                 use_default_for_file = true;
6705                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
6706         }
6707
6708         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
6709              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
6710                 print_quota_title(name, qctl, human_readable, show_default);
6711
6712         if (rc1 && *obd_type)
6713                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
6714
6715         if (qctl->qc_valid != QC_GENERAL)
6716                 mnt = "";
6717
6718         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
6719                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
6720                  (QIF_LIMITS|QIF_USAGE));
6721
6722         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
6723
6724         if (!show_default && verbose &&
6725             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO) {
6726                 char strbuf[STRBUF_LEN];
6727
6728                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
6729                                       &total_ialloc);
6730                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
6731                                       &total_balloc);
6732                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
6733                            human_readable);
6734                 printf("Total allocated inode limit: %ju, total "
6735                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
6736                        strbuf);
6737         }
6738
6739         if (use_default_for_blk)
6740                 printf("%cid %u is using default block quota setting\n",
6741                        *qtype_name(qctl->qc_type), qctl->qc_id);
6742
6743         if (use_default_for_file)
6744                 printf("%cid %u is using default file quota setting\n",
6745                        *qtype_name(qctl->qc_type), qctl->qc_id);
6746
6747         if (rc1 || rc2 || rc3 || inacc)
6748                 printf("Some errors happened when getting quota info. "
6749                        "Some devices may be not working or deactivated. "
6750                        "The data in \"[]\" is inaccurate.\n");
6751 out:
6752         return rc1;
6753
6754 }
6755
6756 static int lfs_project(int argc, char **argv)
6757 {
6758         int ret = 0, err = 0, c, i;
6759         struct project_handle_control phc = { 0 };
6760         enum lfs_project_ops_t op;
6761
6762         phc.newline = true;
6763         phc.assign_projid = false;
6764         /* default action */
6765         op = LFS_PROJECT_LIST;
6766
6767         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
6768                 switch (c) {
6769                 case 'c':
6770                         if (op != LFS_PROJECT_LIST) {
6771                                 fprintf(stderr,
6772                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6773                                         progname);
6774                                 return CMD_HELP;
6775                         }
6776
6777                         op = LFS_PROJECT_CHECK;
6778                         break;
6779                 case 'C':
6780                         if (op != LFS_PROJECT_LIST) {
6781                                 fprintf(stderr,
6782                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6783                                         progname);
6784                                 return CMD_HELP;
6785                         }
6786
6787                         op = LFS_PROJECT_CLEAR;
6788                         break;
6789                 case 's':
6790                         if (op != LFS_PROJECT_LIST) {
6791                                 fprintf(stderr,
6792                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6793                                         progname);
6794                                 return CMD_HELP;
6795                         }
6796
6797                         phc.set_inherit = true;
6798                         op = LFS_PROJECT_SET;
6799                         break;
6800                 case 'd':
6801                         phc.dironly = true;
6802                         break;
6803                 case 'k':
6804                         phc.keep_projid = true;
6805                         break;
6806                 case 'r':
6807                         phc.recursive = true;
6808                         break;
6809                 case 'p':
6810                         phc.projid = strtoul(optarg, NULL, 0);
6811                         phc.assign_projid = true;
6812
6813                         break;
6814                 case '0':
6815                         phc.newline = false;
6816                         break;
6817                 default:
6818                         fprintf(stderr, "%s: invalid option '%c'\n",
6819                                 progname, optopt);
6820                         return CMD_HELP;
6821                 }
6822         }
6823
6824         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
6825                 op = LFS_PROJECT_SET;
6826                 phc.set_projid = true;
6827         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
6828                 phc.set_projid = true;
6829         }
6830
6831         switch (op) {
6832         case LFS_PROJECT_CHECK:
6833                 if (phc.keep_projid) {
6834                         fprintf(stderr,
6835                                 "%s: '-k' is useless together with '-c'\n",
6836                                 progname);
6837                         return CMD_HELP;
6838                 }
6839                 break;
6840         case LFS_PROJECT_CLEAR:
6841                 if (!phc.newline) {
6842                         fprintf(stderr,
6843                                 "%s: '-0' is useless together with '-C'\n",
6844                                 progname);
6845                         return CMD_HELP;
6846                 }
6847                 if (phc.assign_projid) {
6848                         fprintf(stderr,
6849                                 "%s: '-p' is useless together with '-C'\n",
6850                                 progname);
6851                         return CMD_HELP;
6852                 }
6853                 break;
6854         case LFS_PROJECT_SET:
6855                 if (!phc.newline) {
6856                         fprintf(stderr,
6857                                 "%s: '-0' is useless together with '-s'\n",
6858                                 progname);
6859                         return CMD_HELP;
6860                 }
6861                 if (phc.keep_projid) {
6862                         fprintf(stderr,
6863                                 "%s: '-k' is useless together with '-s'\n",
6864                                 progname);
6865                         return CMD_HELP;
6866                 }
6867                 break;
6868         default:
6869                 if (!phc.newline) {
6870                         fprintf(stderr,
6871                                 "%s: '-0' is useless for list operations\n",
6872                                 progname);
6873                         return CMD_HELP;
6874                 }
6875                 break;
6876         }
6877
6878         argv += optind;
6879         argc -= optind;
6880         if (argc == 0) {
6881                 fprintf(stderr, "%s: missing file or directory target(s)\n",
6882                         progname);
6883                 return CMD_HELP;
6884         }
6885
6886         for (i = 0; i < argc; i++) {
6887                 switch (op) {
6888                 case LFS_PROJECT_CHECK:
6889                         err = lfs_project_check(argv[i], &phc);
6890                         break;
6891                 case LFS_PROJECT_LIST:
6892                         err = lfs_project_list(argv[i], &phc);
6893                         break;
6894                 case LFS_PROJECT_CLEAR:
6895                         err = lfs_project_clear(argv[i], &phc);
6896                         break;
6897                 case LFS_PROJECT_SET:
6898                         err = lfs_project_set(argv[i], &phc);
6899                         break;
6900                 default:
6901                         break;
6902                 }
6903                 if (err && !ret)
6904                         ret = err;
6905         }
6906
6907         return ret;
6908 }
6909
6910 static int lfs_quota(int argc, char **argv)
6911 {
6912         int c;
6913         char *mnt, *name = NULL;
6914         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
6915                                     .qc_type = ALLQUOTA };
6916         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
6917         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
6918         char *endptr;
6919         __u32 valid = QC_GENERAL, idx = 0;
6920         bool human_readable = false;
6921         bool show_default = false;
6922         int qtype;
6923
6924         while ((c = getopt(argc, argv, "gGi:I:o:pPqtuUvh")) != -1) {
6925                 switch (c) {
6926                 case 'U':
6927                         show_default = true;
6928                 case 'u':
6929                         qtype = USRQUOTA;
6930                         goto quota_type;
6931                 case 'G':
6932                         show_default = true;
6933                 case 'g':
6934                         qtype = GRPQUOTA;
6935                         goto quota_type;
6936                 case 'P':
6937                         show_default = true;
6938                 case 'p':
6939                         qtype = PRJQUOTA;
6940 quota_type:
6941                         if (qctl.qc_type != ALLQUOTA) {
6942                                 fprintf(stderr,
6943                                         "%s quota: only one of -u, -g, or -p may be specified\n",
6944                                         progname);
6945                                 return CMD_HELP;
6946                         }
6947                         qctl.qc_type = qtype;
6948                         break;
6949                 case 't':
6950                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
6951                         break;
6952                 case 'o':
6953                         valid = qctl.qc_valid = QC_UUID;
6954                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
6955                         break;
6956                 case 'i':
6957                         valid = qctl.qc_valid = QC_MDTIDX;
6958                         idx = qctl.qc_idx = atoi(optarg);
6959                         if (idx == 0 && *optarg != '0') {
6960                                 fprintf(stderr,
6961                                         "%s quota: invalid MDT index '%s'\n",
6962                                         progname, optarg);
6963                                 return CMD_HELP;
6964                         }
6965                         break;
6966                 case 'I':
6967                         valid = qctl.qc_valid = QC_OSTIDX;
6968                         idx = qctl.qc_idx = atoi(optarg);
6969                         if (idx == 0 && *optarg != '0') {
6970                                 fprintf(stderr,
6971                                         "%s quota: invalid OST index '%s'\n",
6972                                         progname, optarg);
6973                                 return CMD_HELP;
6974                         }
6975                         break;
6976                 case 'v':
6977                         verbose = 1;
6978                         break;
6979                 case 'q':
6980                         quiet = 1;
6981                         break;
6982                 case 'h':
6983                         human_readable = true;
6984                         break;
6985                 default:
6986                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
6987                                 progname, argv[optind - 1]);
6988                         return CMD_HELP;
6989                 }
6990         }
6991
6992         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
6993         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
6994             optind == argc - 1 && !show_default) {
6995
6996                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
6997                 qctl.qc_valid = valid;
6998                 qctl.qc_idx = idx;
6999
7000                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
7001                         qctl.qc_type = qtype;
7002                         if (qtype == USRQUOTA) {
7003                                 qctl.qc_id = geteuid();
7004                                 rc = uid2name(&name, qctl.qc_id);
7005                         } else {
7006                                 qctl.qc_id = getegid();
7007                                 rc = gid2name(&name, qctl.qc_id);
7008                         }
7009                         if (rc)
7010                                 name = "<unknown>";
7011                         mnt = argv[optind];
7012                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
7013                                               human_readable, show_default);
7014                         if (rc1 && !rc)
7015                                 rc = rc1;
7016                 }
7017                 return rc;
7018         /* lfs quota -u username /path/to/lustre/mount */
7019         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
7020                 /* options should be followed by u/g-name and mntpoint */
7021                 if ((!show_default && optind + 2 != argc) ||
7022                     (show_default && optind + 1 != argc) ||
7023                     qctl.qc_type == ALLQUOTA) {
7024                         fprintf(stderr,
7025                                 "%s quota: name and mount point must be specified\n",
7026                                 progname);
7027                         return CMD_HELP;
7028                 }
7029
7030                 if (!show_default) {
7031                         name = argv[optind++];
7032                         switch (qctl.qc_type) {
7033                         case USRQUOTA:
7034                                 rc = name2uid(&qctl.qc_id, name);
7035                                 break;
7036                         case GRPQUOTA:
7037                                 rc = name2gid(&qctl.qc_id, name);
7038                                 break;
7039                         case PRJQUOTA:
7040                                 rc = name2projid(&qctl.qc_id, name);
7041                                 break;
7042                         default:
7043                                 rc = -ENOTSUP;
7044                                 break;
7045                         }
7046                 } else {
7047                         qctl.qc_valid = QC_GENERAL;
7048                         qctl.qc_cmd = LUSTRE_Q_GETDEFAULT;
7049                         qctl.qc_id = 0;
7050                 }
7051
7052                 if (rc) {
7053                         qctl.qc_id = strtoul(name, &endptr, 10);
7054                         if (*endptr != '\0') {
7055                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
7056                                         progname, name);
7057                                 return CMD_HELP;
7058                         }
7059                 }
7060         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
7061                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
7062                         progname);
7063                 return CMD_HELP;
7064         }
7065
7066         mnt = argv[optind];
7067         rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
7068                              human_readable, show_default);
7069         return rc;
7070 }
7071 #endif /* HAVE_SYS_QUOTA_H! */
7072
7073 static int flushctx_ioctl(char *mp)
7074 {
7075         int fd, rc;
7076
7077         fd = open(mp, O_RDONLY);
7078         if (fd == -1) {
7079                 fprintf(stderr, "flushctx: error open %s: %s\n",
7080                         mp, strerror(errno));
7081                 return -1;
7082         }
7083
7084         rc = ioctl(fd, LL_IOC_FLUSHCTX);
7085         if (rc == -1)
7086                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
7087                         mp, strerror(errno));
7088
7089         close(fd);
7090         return rc;
7091 }
7092
7093 static int lfs_flushctx(int argc, char **argv)
7094 {
7095         int     kdestroy = 0, c;
7096         char    mntdir[PATH_MAX] = {'\0'};
7097         int     index = 0;
7098         int     rc = 0;
7099
7100         while ((c = getopt(argc, argv, "k")) != -1) {
7101                 switch (c) {
7102                 case 'k':
7103                         kdestroy = 1;
7104                         break;
7105                 default:
7106                         fprintf(stderr, "error: %s: option '-%c' "
7107                                         "unrecognized\n", argv[0], c);
7108                         return CMD_HELP;
7109                 }
7110         }
7111
7112         if (kdestroy) {
7113             if ((rc = system("kdestroy > /dev/null")) != 0) {
7114                 rc = WEXITSTATUS(rc);
7115                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
7116             }
7117         }
7118
7119         if (optind >= argc) {
7120                 /* flush for all mounted lustre fs. */
7121                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
7122                         /* Check if we have a mount point */
7123                         if (mntdir[0] == '\0')
7124                                 continue;
7125
7126                         if (flushctx_ioctl(mntdir))
7127                                 rc = -1;
7128
7129                         mntdir[0] = '\0'; /* avoid matching in next loop */
7130                 }
7131         } else {
7132                 /* flush fs as specified */
7133                 while (optind < argc) {
7134                         if (flushctx_ioctl(argv[optind++]))
7135                                 rc = -1;
7136                 }
7137         }
7138         return rc;
7139 }
7140
7141 static int lfs_changelog(int argc, char **argv)
7142 {
7143         void *changelog_priv;
7144         struct changelog_rec *rec;
7145         long long startrec = 0, endrec = 0;
7146         char *mdd;
7147         struct option long_opts[] = {
7148                 { .val = 'f', .name = "follow", .has_arg = no_argument },
7149                 { .name = NULL } };
7150         char short_opts[] = "f";
7151         int rc, follow = 0;
7152
7153         while ((rc = getopt_long(argc, argv, short_opts,
7154                 long_opts, NULL)) != -1) {
7155                 switch (rc) {
7156                 case 'f':
7157                         follow++;
7158                         break;
7159                 default:
7160                         fprintf(stderr,
7161                                 "%s changelog: unrecognized option '%s'\n",
7162                                 progname, argv[optind - 1]);
7163                         return CMD_HELP;
7164                 }
7165         }
7166         if (optind >= argc) {
7167                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
7168                         progname);
7169                 return CMD_HELP;
7170         }
7171
7172         mdd = argv[optind++];
7173         if (argc > optind)
7174                 startrec = strtoll(argv[optind++], NULL, 10);
7175         if (argc > optind)
7176                 endrec = strtoll(argv[optind++], NULL, 10);
7177
7178         rc = llapi_changelog_start(&changelog_priv,
7179                                    CHANGELOG_FLAG_BLOCK |
7180                                    CHANGELOG_FLAG_JOBID |
7181                                    CHANGELOG_FLAG_EXTRA_FLAGS |
7182                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
7183                                    mdd, startrec);
7184         if (rc < 0) {
7185                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
7186                         progname, strerror(errno = -rc));
7187                 return rc;
7188         }
7189
7190         rc = llapi_changelog_set_xflags(changelog_priv,
7191                                         CHANGELOG_EXTRA_FLAG_UIDGID |
7192                                         CHANGELOG_EXTRA_FLAG_NID |
7193                                         CHANGELOG_EXTRA_FLAG_OMODE |
7194                                         CHANGELOG_EXTRA_FLAG_XATTR);
7195         if (rc < 0) {
7196                 fprintf(stderr,
7197                         "%s changelog: cannot set xflags for changelog: %s\n",
7198                         progname, strerror(errno = -rc));
7199                 return rc;
7200         }
7201
7202         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
7203                 time_t secs;
7204                 struct tm ts;
7205
7206                 if (endrec && rec->cr_index > endrec) {
7207                         llapi_changelog_free(&rec);
7208                         break;
7209                 }
7210                 if (rec->cr_index < startrec) {
7211                         llapi_changelog_free(&rec);
7212                         continue;
7213                 }
7214
7215                 secs = rec->cr_time >> 30;
7216                 gmtime_r(&secs, &ts);
7217                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
7218                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
7219                        changelog_type2str(rec->cr_type),
7220                        ts.tm_hour, ts.tm_min, ts.tm_sec,
7221                        (int)(rec->cr_time & ((1 << 30) - 1)),
7222                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
7223                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
7224
7225                 if (rec->cr_flags & CLF_JOBID) {
7226                         struct changelog_ext_jobid *jid =
7227                                 changelog_rec_jobid(rec);
7228
7229                         if (jid->cr_jobid[0] != '\0')
7230                                 printf(" j=%s", jid->cr_jobid);
7231                 }
7232
7233                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
7234                         struct changelog_ext_extra_flags *ef =
7235                                 changelog_rec_extra_flags(rec);
7236
7237                         printf(" ef=0x%llx", ef->cr_extra_flags);
7238
7239                         if (ef->cr_extra_flags & CLFE_UIDGID) {
7240                                 struct changelog_ext_uidgid *uidgid =
7241                                         changelog_rec_uidgid(rec);
7242
7243                                 printf(" u=%llu:%llu",
7244                                        uidgid->cr_uid, uidgid->cr_gid);
7245                         }
7246                         if (ef->cr_extra_flags & CLFE_NID) {
7247                                 struct changelog_ext_nid *nid =
7248                                         changelog_rec_nid(rec);
7249
7250                                 printf(" nid=%s",
7251                                        libcfs_nid2str(nid->cr_nid));
7252                         }
7253
7254                         if (ef->cr_extra_flags & CLFE_OPEN) {
7255                                 struct changelog_ext_openmode *omd =
7256                                         changelog_rec_openmode(rec);
7257                                 char mode[] = "---";
7258
7259                                 /* exec mode must be exclusive */
7260                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
7261                                         mode[2] = 'x';
7262                                 } else {
7263                                         if (omd->cr_openflags & MDS_FMODE_READ)
7264                                                 mode[0] = 'r';
7265                                         if (omd->cr_openflags &
7266                                             (MDS_FMODE_WRITE |
7267                                              MDS_OPEN_TRUNC |
7268                                              MDS_OPEN_APPEND))
7269                                                 mode[1] = 'w';
7270                                 }
7271
7272                                 if (strcmp(mode, "---") != 0)
7273                                         printf(" m=%s", mode);
7274
7275                         }
7276
7277                         if (ef->cr_extra_flags & CLFE_XATTR) {
7278                                 struct changelog_ext_xattr *xattr =
7279                                         changelog_rec_xattr(rec);
7280
7281                                 if (xattr->cr_xattr[0] != '\0')
7282                                         printf(" x=%s", xattr->cr_xattr);
7283                         }
7284                 }
7285
7286                 if (rec->cr_namelen)
7287                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
7288                                rec->cr_namelen, changelog_rec_name(rec));
7289
7290                 if (rec->cr_flags & CLF_RENAME) {
7291                         struct changelog_ext_rename *rnm =
7292                                 changelog_rec_rename(rec);
7293
7294                         if (!fid_is_zero(&rnm->cr_sfid))
7295                                 printf(" s="DFID" sp="DFID" %.*s",
7296                                        PFID(&rnm->cr_sfid),
7297                                        PFID(&rnm->cr_spfid),
7298                                        (int)changelog_rec_snamelen(rec),
7299                                        changelog_rec_sname(rec));
7300                 }
7301                 printf("\n");
7302
7303                 llapi_changelog_free(&rec);
7304         }
7305
7306         llapi_changelog_fini(&changelog_priv);
7307
7308         if (rc < 0)
7309                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
7310                         progname, strerror(errno = -rc));
7311
7312         return (rc == 1 ? 0 : rc);
7313 }
7314
7315 static int lfs_changelog_clear(int argc, char **argv)
7316 {
7317         long long endrec;
7318         int rc;
7319
7320         if (argc != 4)
7321                 return CMD_HELP;
7322
7323         endrec = strtoll(argv[3], NULL, 10);
7324
7325         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
7326
7327         if (rc == -EINVAL)
7328                 fprintf(stderr, "%s: record out of range: %llu\n",
7329                         argv[0], endrec);
7330         else if (rc == -ENOENT)
7331                 fprintf(stderr, "%s: no changelog user: %s\n",
7332                         argv[0], argv[2]);
7333         else if (rc)
7334                 fprintf(stderr, "%s error: %s\n", argv[0],
7335                         strerror(-rc));
7336
7337         if (rc)
7338                 errno = -rc;
7339
7340         return rc;
7341 }
7342
7343 static int lfs_fid2path(int argc, char **argv)
7344 {
7345         struct option long_opts[] = {
7346                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
7347                 { .val = 'l',   .name = "link", .has_arg = required_argument },
7348                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
7349                 { .name = NULL } };
7350         char  short_opts[] = "cl:r:";
7351         char *device, *fid, *path;
7352         long long recno = -1;
7353         int linkno = -1;
7354         int lnktmp;
7355         int printcur = 0;
7356         int rc = 0;
7357         char *endptr = NULL;
7358
7359         while ((rc = getopt_long(argc, argv, short_opts,
7360                 long_opts, NULL)) != -1) {
7361                 switch (rc) {
7362                 case 'c':
7363                         printcur++;
7364                         break;
7365                 case 'l':
7366                         linkno = strtol(optarg, &endptr, 10);
7367                         if (*endptr != '\0') {
7368                                 fprintf(stderr,
7369                                         "%s fid2path: invalid linkno '%s'\n",
7370                                         progname, optarg);
7371                                 return CMD_HELP;
7372                         }
7373                         break;
7374                 case 'r':
7375                         recno = strtoll(optarg, &endptr, 10);
7376                         if (*endptr != '\0') {
7377                                 fprintf(stderr,
7378                                         "%s fid2path: invalid recno '%s'\n",
7379                                         progname, optarg);
7380                                 return CMD_HELP;
7381                         }
7382                         break;
7383                 default:
7384                         fprintf(stderr,
7385                                 "%s fid2path: unrecognized option '%s'\n",
7386                                 progname, argv[optind - 1]);
7387                         return CMD_HELP;
7388                 }
7389         }
7390
7391         if (argc < 3) {
7392                 fprintf(stderr,
7393                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
7394                         progname);
7395                 return CMD_HELP;
7396         }
7397
7398         device = argv[optind++];
7399         path = calloc(1, PATH_MAX);
7400         if (path == NULL) {
7401                 rc = -errno;
7402                 fprintf(stderr,
7403                         "%s fid2path: cannot allocate memory for path: %s\n",
7404                         progname, strerror(-rc));
7405                 return rc;
7406         }
7407
7408         rc = 0;
7409         while (optind < argc) {
7410                 fid = argv[optind++];
7411
7412                 lnktmp = (linkno >= 0) ? linkno : 0;
7413                 while (1) {
7414                         int oldtmp = lnktmp;
7415                         long long rectmp = recno;
7416                         int rc2;
7417                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
7418                                              &rectmp, &lnktmp);
7419                         if (rc2 < 0) {
7420                                 fprintf(stderr,
7421                                         "%s fid2path: cannot find '%s': %s\n",
7422                                         progname, fid, strerror(errno = -rc2));
7423                                 if (rc == 0)
7424                                         rc = rc2;
7425                                 break;
7426                         }
7427
7428                         if (printcur)
7429                                 fprintf(stdout, "%lld ", rectmp);
7430                         if (device[0] == '/') {
7431                                 fprintf(stdout, "%s", device);
7432                                 if (device[strlen(device) - 1] != '/')
7433                                         fprintf(stdout, "/");
7434                         } else if (path[0] == '\0') {
7435                                 fprintf(stdout, "/");
7436                         }
7437                         fprintf(stdout, "%s\n", path);
7438
7439                         if (linkno >= 0)
7440                                 /* specified linkno */
7441                                 break;
7442                         if (oldtmp == lnktmp)
7443                                 /* no more links */
7444                                 break;
7445                 }
7446         }
7447
7448         free(path);
7449         return rc;
7450 }
7451
7452 static int lfs_path2fid(int argc, char **argv)
7453 {
7454         struct option long_opts[] = {
7455                 { .val = 'p', .name = "parents", .has_arg = no_argument },
7456                 { .name = NULL } };
7457         char            **path;
7458         const char        short_opts[] = "p";
7459         const char       *sep = "";
7460         struct lu_fid     fid;
7461         int               rc = 0;
7462         bool              show_parents = false;
7463
7464         while ((rc = getopt_long(argc, argv, short_opts,
7465                                  long_opts, NULL)) != -1) {
7466                 switch (rc) {
7467                 case 'p':
7468                         show_parents = true;
7469                         break;
7470                 default:
7471                         fprintf(stderr,
7472                                 "%s path2fid: unrecognized option '%s'\n",
7473                                 progname, argv[optind - 1]);
7474                         return CMD_HELP;
7475                 }
7476         }
7477
7478         if (optind > argc - 1) {
7479                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
7480                         progname);
7481                 return CMD_HELP;
7482         }
7483         else if (optind < argc - 1)
7484                 sep = ": ";
7485
7486         rc = 0;
7487         for (path = argv + optind; *path != NULL; path++) {
7488                 int err = 0;
7489                 if (!show_parents) {
7490                         err = llapi_path2fid(*path, &fid);
7491                         if (!err)
7492                                 printf("%s%s"DFID"\n",
7493                                        *sep != '\0' ? *path : "", sep,
7494                                        PFID(&fid));
7495                 } else {
7496                         char            name[NAME_MAX + 1];
7497                         unsigned int    linkno = 0;
7498
7499                         while ((err = llapi_path2parent(*path, linkno, &fid,
7500                                                 name, sizeof(name))) == 0) {
7501                                 if (*sep != '\0' && linkno == 0)
7502                                         printf("%s%s", *path, sep);
7503
7504                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
7505                                        PFID(&fid), name);
7506                                 linkno++;
7507                         }
7508
7509                         /* err == -ENODATA is end-of-loop */
7510                         if (linkno > 0 && err == -ENODATA) {
7511                                 printf("\n");
7512                                 err = 0;
7513                         }
7514                 }
7515
7516                 if (err) {
7517                         fprintf(stderr,
7518                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
7519                                 progname, show_parents ? "parent " : "", *path,
7520                                 strerror(-err));
7521                         if (rc == 0) {
7522                                 rc = err;
7523                                 errno = -err;
7524                         }
7525                 }
7526         }
7527
7528         return rc;
7529 }
7530
7531 static int lfs_data_version(int argc, char **argv)
7532 {
7533         char *path;
7534         __u64 data_version;
7535         int fd;
7536         int rc;
7537         int c;
7538         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
7539
7540         if (argc < 2) {
7541                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7542                         progname);
7543                 return CMD_HELP;
7544         }
7545
7546         while ((c = getopt(argc, argv, "nrw")) != -1) {
7547                 switch (c) {
7548                 case 'n':
7549                         data_version_flags = 0;
7550                         break;
7551                 case 'r':
7552                         data_version_flags |= LL_DV_RD_FLUSH;
7553                         break;
7554                 case 'w':
7555                         data_version_flags |= LL_DV_WR_FLUSH;
7556                         break;
7557                 default:
7558                         fprintf(stderr,
7559                                 "%s data_version: unrecognized option '%s'\n",
7560                                 progname, argv[optind - 1]);
7561                         return CMD_HELP;
7562                 }
7563         }
7564         if (optind == argc) {
7565                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7566                         progname);
7567                 return CMD_HELP;
7568         }
7569
7570         path = argv[optind];
7571         fd = open(path, O_RDONLY);
7572         if (fd < 0) {
7573                 rc = -errno;
7574                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
7575                         progname, path, strerror(-rc));
7576                 return rc;
7577         }
7578
7579         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
7580         if (rc < 0)
7581                 fprintf(stderr,
7582                         "%s data_version: cannot get version for '%s': %s\n",
7583                         progname, path, strerror(-rc));
7584         else
7585                 printf("%ju" "\n", (uintmax_t)data_version);
7586
7587         close(fd);
7588         return rc;
7589 }
7590
7591 static int lfs_hsm_state(int argc, char **argv)
7592 {
7593         int rc;
7594         int i = 1;
7595         char *path;
7596         struct hsm_user_state hus;
7597
7598         if (argc < 2)
7599                 return CMD_HELP;
7600
7601         do {
7602                 path = argv[i];
7603
7604                 rc = llapi_hsm_state_get(path, &hus);
7605                 if (rc) {
7606                         fprintf(stderr, "can't get hsm state for %s: %s\n",
7607                                 path, strerror(errno = -rc));
7608                         return rc;
7609                 }
7610
7611                 /* Display path name and status flags */
7612                 printf("%s: (0x%08x)", path, hus.hus_states);
7613
7614                 if (hus.hus_states & HS_RELEASED)
7615                         printf(" released");
7616                 if (hus.hus_states & HS_EXISTS)
7617                         printf(" exists");
7618                 if (hus.hus_states & HS_DIRTY)
7619                         printf(" dirty");
7620                 if (hus.hus_states & HS_ARCHIVED)
7621                         printf(" archived");
7622                 /* Display user-settable flags */
7623                 if (hus.hus_states & HS_NORELEASE)
7624                         printf(" never_release");
7625                 if (hus.hus_states & HS_NOARCHIVE)
7626                         printf(" never_archive");
7627                 if (hus.hus_states & HS_LOST)
7628                         printf(" lost_from_hsm");
7629
7630                 if (hus.hus_archive_id != 0)
7631                         printf(", archive_id:%d", hus.hus_archive_id);
7632                 printf("\n");
7633
7634         } while (++i < argc);
7635
7636         return 0;
7637 }
7638
7639 #define LFS_HSM_SET   0
7640 #define LFS_HSM_CLEAR 1
7641
7642 /**
7643  * Generic function to set or clear HSM flags.
7644  * Used by hsm_set and hsm_clear.
7645  *
7646  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
7647  */
7648 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
7649 {
7650         struct option long_opts[] = {
7651         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
7652         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
7653         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
7654         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
7655         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
7656         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
7657         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
7658         { .name = NULL } };
7659         char short_opts[] = "lraAdei:";
7660         __u64 mask = 0;
7661         int c, rc;
7662         char *path;
7663         __u32 archive_id = 0;
7664         char *end = NULL;
7665
7666         if (argc < 3)
7667                 return CMD_HELP;
7668
7669         while ((c = getopt_long(argc, argv, short_opts,
7670                                 long_opts, NULL)) != -1) {
7671                 switch (c) {
7672                 case 'l':
7673                         mask |= HS_LOST;
7674                         break;
7675                 case 'a':
7676                         mask |= HS_NOARCHIVE;
7677                         break;
7678                 case 'A':
7679                         mask |= HS_ARCHIVED;
7680                         break;
7681                 case 'r':
7682                         mask |= HS_NORELEASE;
7683                         break;
7684                 case 'd':
7685                         mask |= HS_DIRTY;
7686                         break;
7687                 case 'e':
7688                         mask |= HS_EXISTS;
7689                         break;
7690                 case 'i':
7691                         archive_id = strtol(optarg, &end, 10);
7692                         if (*end != '\0') {
7693                                 fprintf(stderr, "invalid archive_id: '%s'\n",
7694                                         end);
7695                                 return CMD_HELP;
7696                         }
7697                         break;
7698                 case '?':
7699                         return CMD_HELP;
7700                 default:
7701                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7702                                 argv[0], argv[optind - 1]);
7703                         return CMD_HELP;
7704                 }
7705         }
7706
7707         /* User should have specified a flag */
7708         if (mask == 0)
7709                 return CMD_HELP;
7710
7711         while (optind < argc) {
7712
7713                 path = argv[optind];
7714
7715                 /* If mode == 0, this means we apply the mask. */
7716                 if (mode == LFS_HSM_SET)
7717                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
7718                 else
7719                         rc = llapi_hsm_state_set(path, 0, mask, 0);
7720
7721                 if (rc != 0) {
7722                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
7723                                 path, strerror(errno = -rc));
7724                         return rc;
7725                 }
7726                 optind++;
7727         }
7728
7729         return 0;
7730 }
7731
7732 static int lfs_hsm_action(int argc, char **argv)
7733 {
7734         int                              rc;
7735         int                              i = 1;
7736         char                            *path;
7737         struct hsm_current_action        hca;
7738         struct hsm_extent                he;
7739         enum hsm_user_action             hua;
7740         enum hsm_progress_states         hps;
7741
7742         if (argc < 2)
7743                 return CMD_HELP;
7744
7745         do {
7746                 path = argv[i];
7747
7748                 rc = llapi_hsm_current_action(path, &hca);
7749                 if (rc) {
7750                         fprintf(stderr, "can't get hsm action for %s: %s\n",
7751                                 path, strerror(errno = -rc));
7752                         return rc;
7753                 }
7754                 he = hca.hca_location;
7755                 hua = hca.hca_action;
7756                 hps = hca.hca_state;
7757
7758                 printf("%s: %s", path, hsm_user_action2name(hua));
7759
7760                 /* Skip file without action */
7761                 if (hca.hca_action == HUA_NONE) {
7762                         printf("\n");
7763                         continue;
7764                 }
7765
7766                 printf(" %s ", hsm_progress_state2name(hps));
7767
7768                 if ((hps == HPS_RUNNING) &&
7769                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
7770                         printf("(%llu bytes moved)\n",
7771                                (unsigned long long)he.length);
7772                 else if ((he.offset + he.length) == LUSTRE_EOF)
7773                         printf("(from %llu to EOF)\n",
7774                                (unsigned long long)he.offset);
7775                 else
7776                         printf("(from %llu to %llu)\n",
7777                                (unsigned long long)he.offset,
7778                                (unsigned long long)(he.offset + he.length));
7779
7780         } while (++i < argc);
7781
7782         return 0;
7783 }
7784
7785 static int lfs_hsm_set(int argc, char **argv)
7786 {
7787         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
7788 }
7789
7790 static int lfs_hsm_clear(int argc, char **argv)
7791 {
7792         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
7793 }
7794
7795 /**
7796  * Check file state and return its fid, to be used by lfs_hsm_request().
7797  *
7798  * \param[in]     file      Path to file to check
7799  * \param[in,out] fid       Pointer to allocated lu_fid struct.
7800  * \param[in,out] last_dev  Pointer to last device id used.
7801  *
7802  * \return 0 on success.
7803  */
7804 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
7805                                 dev_t *last_dev)
7806 {
7807         struct stat     st;
7808         int             rc;
7809
7810         rc = lstat(file, &st);
7811         if (rc) {
7812                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
7813                 return -errno;
7814         }
7815         /* Checking for regular file as archiving as posix copytool
7816          * rejects archiving files other than regular files
7817          */
7818         if (!S_ISREG(st.st_mode)) {
7819                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
7820                 return CMD_HELP;
7821         }
7822         /* A request should be ... */
7823         if (*last_dev != st.st_dev && *last_dev != 0) {
7824                 fprintf(stderr, "All files should be "
7825                         "on the same filesystem: %s\n", file);
7826                 return -EINVAL;
7827         }
7828         *last_dev = st.st_dev;
7829
7830         rc = llapi_path2fid(file, fid);
7831         if (rc) {
7832                 fprintf(stderr, "Cannot read FID of %s: %s\n",
7833                         file, strerror(-rc));
7834                 return rc;
7835         }
7836         return 0;
7837 }
7838
7839 /* Fill an HSM HUR item with a given file name.
7840  *
7841  * If mntpath is set, then the filename is actually a FID, and no
7842  * lookup on the filesystem will be performed.
7843  *
7844  * \param[in]  hur         the user request to fill
7845  * \param[in]  idx         index of the item inside the HUR to fill
7846  * \param[in]  mntpath     mountpoint of Lustre
7847  * \param[in]  fname       filename (if mtnpath is NULL)
7848  *                         or FID (if mntpath is set)
7849  * \param[in]  last_dev    pointer to last device id used
7850  *
7851  * \retval 0 on success
7852  * \retval CMD_HELP or a negative errno on error
7853  */
7854 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
7855                          const char *mntpath, const char *fname,
7856                          dev_t *last_dev)
7857 {
7858         struct hsm_user_item *hui = &hur->hur_user_item[idx];
7859         int rc;
7860
7861         hui->hui_extent.length = -1;
7862
7863         if (mntpath != NULL) {
7864                 if (*fname == '[')
7865                         fname++;
7866                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
7867                 if (rc == 3) {
7868                         rc = 0;
7869                 } else {
7870                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
7871                                 fname);
7872                         rc = -EINVAL;
7873                 }
7874         } else {
7875                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
7876         }
7877
7878         if (rc == 0)
7879                 hur->hur_request.hr_itemcount++;
7880
7881         return rc;
7882 }
7883
7884 static int lfs_hsm_request(int argc, char **argv, int action)
7885 {
7886         struct option long_opts[] = {
7887         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
7888         { .val = 'D',   .name = "data",         .has_arg = required_argument },
7889         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
7890         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
7891         { .name = NULL } };
7892         dev_t                    last_dev = 0;
7893         char                     short_opts[] = "l:D:a:m:";
7894         struct hsm_user_request *hur, *oldhur;
7895         int                      c, i;
7896         size_t                   len;
7897         int                      nbfile;
7898         char                    *line = NULL;
7899         char                    *filelist = NULL;
7900         char                     fullpath[PATH_MAX];
7901         char                    *opaque = NULL;
7902         int                      opaque_len = 0;
7903         int                      archive_id = 0;
7904         FILE                    *fp;
7905         int                      nbfile_alloc = 0;
7906         char                    *some_file = NULL;
7907         char                    *mntpath = NULL;
7908         int                      rc;
7909
7910         if (argc < 2)
7911                 return CMD_HELP;
7912
7913         while ((c = getopt_long(argc, argv, short_opts,
7914                                 long_opts, NULL)) != -1) {
7915                 switch (c) {
7916                 case 'l':
7917                         filelist = optarg;
7918                         break;
7919                 case 'D':
7920                         opaque = optarg;
7921                         break;
7922                 case 'a':
7923                         if (action != HUA_ARCHIVE &&
7924                             action != HUA_REMOVE) {
7925                                 fprintf(stderr,
7926                                         "error: -a is supported only "
7927                                         "when archiving or removing\n");
7928                                 return CMD_HELP;
7929                         }
7930                         archive_id = atoi(optarg);
7931                         break;
7932                 case 'm':
7933                         if (some_file == NULL) {
7934                                 mntpath = optarg;
7935                                 some_file = strdup(optarg);
7936                         }
7937                         break;
7938                 case '?':
7939                         return CMD_HELP;
7940                 default:
7941                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7942                                 argv[0], argv[optind - 1]);
7943                         return CMD_HELP;
7944                 }
7945         }
7946
7947         /* All remaining args are files, so we have at least nbfile */
7948         nbfile = argc - optind;
7949
7950         if ((nbfile == 0) && (filelist == NULL))
7951                 return CMD_HELP;
7952
7953         if (opaque != NULL)
7954                 opaque_len = strlen(opaque);
7955
7956         /* Alloc the request structure with enough place to store all files
7957          * from command line. */
7958         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
7959         if (hur == NULL) {
7960                 fprintf(stderr, "Cannot create the request: %s\n",
7961                         strerror(errno));
7962                 return errno;
7963         }
7964         nbfile_alloc = nbfile;
7965
7966         hur->hur_request.hr_action = action;
7967         hur->hur_request.hr_archive_id = archive_id;
7968         hur->hur_request.hr_flags = 0;
7969
7970         /* All remaining args are files, add them */
7971         if (nbfile != 0 && some_file == NULL)
7972                 some_file = strdup(argv[optind]);
7973
7974         for (i = 0; i < nbfile; i++) {
7975                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
7976                                    &last_dev);
7977                 if (rc)
7978                         goto out_free;
7979         }
7980
7981         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
7982
7983         /* If a filelist was specified, read the filelist from it. */
7984         if (filelist != NULL) {
7985                 fp = fopen(filelist, "r");
7986                 if (fp == NULL) {
7987                         fprintf(stderr, "Cannot read the file list %s: %s\n",
7988                                 filelist, strerror(errno));
7989                         rc = -errno;
7990                         goto out_free;
7991                 }
7992
7993                 while ((rc = getline(&line, &len, fp)) != -1) {
7994                         /* If allocated buffer was too small, get something
7995                          * larger */
7996                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
7997                                 ssize_t size;
7998
7999                                 nbfile_alloc = nbfile_alloc * 2 + 1;
8000                                 oldhur = hur;
8001                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
8002                                                                    opaque_len);
8003                                 if (hur == NULL) {
8004                                         fprintf(stderr, "hsm: cannot allocate "
8005                                                 "the request: %s\n",
8006                                                 strerror(errno));
8007                                         hur = oldhur;
8008                                         rc = -errno;
8009                                         fclose(fp);
8010                                         goto out_free;
8011                                 }
8012                                 size = hur_len(oldhur);
8013                                 if (size < 0) {
8014                                         fprintf(stderr, "hsm: cannot allocate "
8015                                                 "%u files + %u bytes data\n",
8016                                             oldhur->hur_request.hr_itemcount,
8017                                             oldhur->hur_request.hr_data_len);
8018                                         free(hur);
8019                                         hur = oldhur;
8020                                         rc = -E2BIG;
8021                                         fclose(fp);
8022                                         goto out_free;
8023                                 }
8024                                 memcpy(hur, oldhur, size);
8025                                 free(oldhur);
8026                         }
8027
8028                         /* Chop CR */
8029                         if (line[strlen(line) - 1] == '\n')
8030                                 line[strlen(line) - 1] = '\0';
8031
8032                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
8033                                            mntpath, line, &last_dev);
8034                         if (rc) {
8035                                 fclose(fp);
8036                                 goto out_free;
8037                         }
8038
8039                         if (some_file == NULL) {
8040                                 some_file = line;
8041                                 line = NULL;
8042                         }
8043                 }
8044
8045                 rc = fclose(fp);
8046                 free(line);
8047         }
8048
8049         /* If a --data was used, add it to the request */
8050         hur->hur_request.hr_data_len = opaque_len;
8051         if (opaque != NULL)
8052                 memcpy(hur_data(hur), opaque, opaque_len);
8053
8054         /* Send the HSM request */
8055         if (realpath(some_file, fullpath) == NULL) {
8056                 fprintf(stderr, "Could not find path '%s': %s\n",
8057                         some_file, strerror(errno));
8058         }
8059         rc = llapi_hsm_request(fullpath, hur);
8060         if (rc) {
8061                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
8062                         some_file, strerror(-rc));
8063                 goto out_free;
8064         }
8065
8066 out_free:
8067         free(some_file);
8068         free(hur);
8069         return rc;
8070 }
8071
8072 static int lfs_hsm_archive(int argc, char **argv)
8073 {
8074         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
8075 }
8076
8077 static int lfs_hsm_restore(int argc, char **argv)
8078 {
8079         return lfs_hsm_request(argc, argv, HUA_RESTORE);
8080 }
8081
8082 static int lfs_hsm_release(int argc, char **argv)
8083 {
8084         return lfs_hsm_request(argc, argv, HUA_RELEASE);
8085 }
8086
8087 static int lfs_hsm_remove(int argc, char **argv)
8088 {
8089         return lfs_hsm_request(argc, argv, HUA_REMOVE);
8090 }
8091
8092 static int lfs_hsm_cancel(int argc, char **argv)
8093 {
8094         return lfs_hsm_request(argc, argv, HUA_CANCEL);
8095 }
8096
8097 static int lfs_swap_layouts(int argc, char **argv)
8098 {
8099         if (argc != 3)
8100                 return CMD_HELP;
8101
8102         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
8103                                   SWAP_LAYOUTS_KEEP_MTIME |
8104                                   SWAP_LAYOUTS_KEEP_ATIME);
8105 }
8106
8107 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
8108
8109 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
8110
8111 int lfs_get_mode(const char *string)
8112 {
8113         enum lock_mode_user mode;
8114
8115         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
8116                 if (lock_mode_names[mode] == NULL)
8117                         continue;
8118                 if (strcmp(string, lock_mode_names[mode]) == 0)
8119                         return mode;
8120         }
8121
8122         return -EINVAL;
8123 }
8124
8125 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
8126 {
8127         enum lu_ladvise_type advice;
8128
8129         for (advice = 0;
8130              advice < ARRAY_SIZE(ladvise_names); advice++) {
8131                 if (ladvise_names[advice] == NULL)
8132                         continue;
8133                 if (strcmp(string, ladvise_names[advice]) == 0)
8134                         return advice;
8135         }
8136
8137         return LU_LADVISE_INVALID;
8138 }
8139
8140 static int lfs_ladvise(int argc, char **argv)
8141 {
8142         struct option long_opts[] = {
8143         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
8144         { .val = 'b',   .name = "background",   .has_arg = no_argument },
8145         { .val = 'e',   .name = "end",          .has_arg = required_argument },
8146         { .val = 'l',   .name = "length",       .has_arg = required_argument },
8147         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
8148         { .val = 's',   .name = "start",        .has_arg = required_argument },
8149         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
8150         { .name = NULL } };
8151         char                     short_opts[] = "a:be:l:m:s:u";
8152         int                      c;
8153         int                      rc = 0;
8154         const char              *path;
8155         int                      fd;
8156         struct llapi_lu_ladvise  advice;
8157         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
8158         unsigned long long       start = 0;
8159         unsigned long long       end = LUSTRE_EOF;
8160         unsigned long long       length = 0;
8161         unsigned long long       size_units;
8162         unsigned long long       flags = 0;
8163         int                      mode = 0;
8164
8165         optind = 0;
8166         while ((c = getopt_long(argc, argv, short_opts,
8167                                 long_opts, NULL)) != -1) {
8168                 switch (c) {
8169                 case 'a':
8170                         advice_type = lfs_get_ladvice(optarg);
8171                         if (advice_type == LU_LADVISE_INVALID) {
8172                                 fprintf(stderr, "%s: invalid advice type "
8173                                         "'%s'\n", argv[0], optarg);
8174                                 fprintf(stderr, "Valid types:");
8175
8176                                 for (advice_type = 0;
8177                                      advice_type < ARRAY_SIZE(ladvise_names);
8178                                      advice_type++) {
8179                                         if (ladvise_names[advice_type] == NULL)
8180                                                 continue;
8181                                         fprintf(stderr, " %s",
8182                                                 ladvise_names[advice_type]);
8183                                 }
8184                                 fprintf(stderr, "\n");
8185
8186                                 return CMD_HELP;
8187                         }
8188                         break;
8189                 case 'b':
8190                         flags |= LF_ASYNC;
8191                         break;
8192                 case 'u':
8193                         flags |= LF_UNSET;
8194                         break;
8195                 case 'e':
8196                         size_units = 1;
8197                         rc = llapi_parse_size(optarg, &end,
8198                                               &size_units, 0);
8199                         if (rc) {
8200                                 fprintf(stderr, "%s: bad end offset '%s'\n",
8201                                         argv[0], optarg);
8202                                 return CMD_HELP;
8203                         }
8204                         break;
8205                 case 's':
8206                         size_units = 1;
8207                         rc = llapi_parse_size(optarg, &start,
8208                                               &size_units, 0);
8209                         if (rc) {
8210                                 fprintf(stderr, "%s: bad start offset "
8211                                         "'%s'\n", argv[0], optarg);
8212                                 return CMD_HELP;
8213                         }
8214                         break;
8215                 case 'l':
8216                         size_units = 1;
8217                         rc = llapi_parse_size(optarg, &length,
8218                                               &size_units, 0);
8219                         if (rc) {
8220                                 fprintf(stderr, "%s: bad length '%s'\n",
8221                                         argv[0], optarg);
8222                                 return CMD_HELP;
8223                         }
8224                         break;
8225                 case 'm':
8226                         mode = lfs_get_mode(optarg);
8227                         if (mode < 0) {
8228                                 fprintf(stderr, "%s: bad mode '%s', valid "
8229                                                  "modes are READ or WRITE\n",
8230                                         argv[0], optarg);
8231                                 return CMD_HELP;
8232                         }
8233                         break;
8234                 case '?':
8235                         return CMD_HELP;
8236                 default:
8237                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8238                                 argv[0], argv[optind - 1]);
8239                         return CMD_HELP;
8240                 }
8241         }
8242
8243         if (advice_type == LU_LADVISE_INVALID) {
8244                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
8245                 fprintf(stderr, "Valid types:");
8246                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
8247                      advice_type++) {
8248                         if (ladvise_names[advice_type] == NULL)
8249                                 continue;
8250                         fprintf(stderr, " %s", ladvise_names[advice_type]);
8251                 }
8252                 fprintf(stderr, "\n");
8253                 return CMD_HELP;
8254         }
8255
8256         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
8257                 fprintf(stderr, "%s: Lock no expand advice is a per file "
8258                                  "descriptor advice, so when called from lfs, "
8259                                  "it does nothing.\n", argv[0]);
8260                 return CMD_HELP;
8261         }
8262
8263         if (argc <= optind) {
8264                 fprintf(stderr, "%s: please give one or more file names\n",
8265                         argv[0]);
8266                 return CMD_HELP;
8267         }
8268
8269         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
8270                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
8271                         argv[0]);
8272                 return CMD_HELP;
8273         }
8274
8275         if (end == LUSTRE_EOF && length != 0)
8276                 end = start + length;
8277
8278         if (end <= start) {
8279                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
8280                         argv[0], start, end);
8281                 return CMD_HELP;
8282         }
8283
8284         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
8285                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
8286                         argv[0]);
8287                 return CMD_HELP;
8288         }
8289
8290         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
8291                 fprintf(stderr, "%s: mode is required with lockahead\n",
8292                         argv[0]);
8293                 return CMD_HELP;
8294         }
8295
8296         while (optind < argc) {
8297                 int rc2;
8298
8299                 path = argv[optind++];
8300
8301                 fd = open(path, O_RDONLY);
8302                 if (fd < 0) {
8303                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8304                                 argv[0], path, strerror(errno));
8305                         rc2 = -errno;
8306                         goto next;
8307                 }
8308
8309                 advice.lla_start = start;
8310                 advice.lla_end = end;
8311                 advice.lla_advice = advice_type;
8312                 advice.lla_value1 = 0;
8313                 advice.lla_value2 = 0;
8314                 advice.lla_value3 = 0;
8315                 advice.lla_value4 = 0;
8316                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
8317                         advice.lla_lockahead_mode = mode;
8318                         advice.lla_peradvice_flags = flags;
8319                 }
8320
8321                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
8322                 close(fd);
8323                 if (rc2 < 0) {
8324                         fprintf(stderr, "%s: cannot give advice '%s' to file "
8325                                 "'%s': %s\n", argv[0],
8326                                 ladvise_names[advice_type],
8327                                 path, strerror(errno));
8328
8329                         goto next;
8330                 }
8331
8332 next:
8333                 if (rc == 0 && rc2 < 0)
8334                         rc = rc2;
8335         }
8336         return rc;
8337 }
8338
8339 static const char *const heat_names[] = LU_HEAT_NAMES;
8340
8341 static int lfs_heat_get(int argc, char **argv)
8342 {
8343         struct lu_heat *heat;
8344         int rc = 0, rc2;
8345         char *path;
8346         int fd;
8347         int i;
8348
8349         if (argc <= 1)
8350                 return CMD_HELP;
8351
8352         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
8353         if (!heat) {
8354                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
8355                 return -ENOMEM;
8356         }
8357
8358         optind = 1;
8359         while (optind < argc) {
8360                 path = argv[optind++];
8361
8362                 fd = open(path, O_RDONLY);
8363                 if (fd < 0) {
8364                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8365                                 argv[0], path, strerror(errno));
8366                         rc2 = -errno;
8367                         goto next;
8368                 }
8369
8370                 heat->lh_count = OBD_HEAT_COUNT;
8371                 rc2 = llapi_heat_get(fd, heat);
8372                 close(fd);
8373                 if (rc2 < 0) {
8374                         fprintf(stderr, "%s: cannot get heat of file '%s'"
8375                                 ": %s\n", argv[0], path, strerror(errno));
8376                         goto next;
8377                 }
8378
8379                 printf("flags: %x\n", heat->lh_flags);
8380                 for (i = 0; i < heat->lh_count; i++)
8381                         printf("%s: %llu\n", heat_names[i], heat->lh_heat[i]);
8382 next:
8383                 if (rc == 0 && rc2 < 0)
8384                         rc = rc2;
8385         }
8386
8387         free(heat);
8388         return rc;
8389 }
8390
8391 static int lfs_heat_set(int argc, char **argv)
8392 {
8393         struct option long_opts[] = {
8394         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
8395         { .val = 'o',   .name = "off",          .has_arg = no_argument },
8396         { .val = 'O',   .name = "on",           .has_arg = no_argument },
8397         { .name = NULL } };
8398         enum lu_heat_flag flags = 0;
8399         int rc = 0, rc2;
8400         char *path;
8401         int fd;
8402         int c;
8403
8404         if (argc <= 1)
8405                 return CMD_HELP;
8406
8407         optind = 0;
8408         while ((c = getopt_long(argc, argv, "coO", long_opts, NULL)) != -1) {
8409                 switch (c) {
8410                 case 'c':
8411                         flags |= LU_HEAT_FLAG_CLEAR;
8412                         break;
8413                 case 'o':
8414                         flags |= LU_HEAT_FLAG_CLEAR;
8415                         flags |= LU_HEAT_FLAG_OFF;
8416                         break;
8417                 case 'O':
8418                         flags &= ~LU_HEAT_FLAG_OFF;
8419                         break;
8420                 case '?':
8421                         return CMD_HELP;
8422                 default:
8423                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8424                                 argv[0], argv[optind - 1]);
8425                         return CMD_HELP;
8426                 }
8427         }
8428
8429         if (argc <= optind) {
8430                 fprintf(stderr, "%s: please give one or more file names\n",
8431                         argv[0]);
8432                 return CMD_HELP;
8433         }
8434
8435         while (optind < argc) {
8436                 path = argv[optind++];
8437
8438                 fd = open(path, O_RDONLY);
8439                 if (fd < 0) {
8440                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8441                                 argv[0], path, strerror(errno));
8442                         rc2 = -errno;
8443                         goto next;
8444                 }
8445
8446                 rc2 = llapi_heat_set(fd, flags);
8447                 close(fd);
8448                 if (rc2 < 0) {
8449                         fprintf(stderr, "%s: cannot setflags heat of file '%s'"
8450                                 ": %s\n", argv[0], path, strerror(errno));
8451                         goto next;
8452                 }
8453 next:
8454                 if (rc == 0 && rc2 < 0)
8455                         rc = rc2;
8456         }
8457         return rc;
8458 }
8459
8460 /** The input string contains a comma delimited list of component ids and
8461  * ranges, for example "1,2-4,7".
8462  */
8463 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
8464 {
8465         bool end_of_loop = false;
8466         char *ptr = NULL;
8467         int nr = 0;
8468         int rc;
8469
8470         if (arg == NULL)
8471                 return -EINVAL;
8472
8473         while (!end_of_loop) {
8474                 int start_index;
8475                 int end_index;
8476                 int i;
8477                 char *endptr = NULL;
8478
8479                 rc = -EINVAL;
8480                 ptr = strchrnul(arg, ',');
8481                 end_of_loop = *ptr == '\0';
8482                 *ptr = '\0';
8483
8484                 start_index = strtol(arg, &endptr, 0);
8485                 if (endptr == arg) /* no data at all */
8486                         break;
8487                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
8488                         break;
8489                 if (start_index < 0)
8490                         break;
8491
8492                 end_index = start_index;
8493                 if (*endptr == '-') {
8494                         end_index = strtol(endptr + 1, &endptr, 0);
8495                         if (*endptr != '\0')
8496                                 break;
8497                         if (end_index < start_index)
8498                                 break;
8499                 }
8500
8501                 for (i = start_index; i <= end_index && size > 0; i++) {
8502                         int j;
8503
8504                         /* remove duplicate */
8505                         for (j = 0; j < nr; j++) {
8506                                 if (ids[j] == i)
8507                                         break;
8508                         }
8509                         if (j == nr) { /* no duplicate */
8510                                 ids[nr++] = i;
8511                                 --size;
8512                         }
8513                 }
8514
8515                 if (size == 0 && i < end_index)
8516                         break;
8517
8518                 *ptr = ',';
8519                 arg = ++ptr;
8520                 rc = 0;
8521         }
8522         if (!end_of_loop && ptr != NULL)
8523                 *ptr = ',';
8524
8525         return rc < 0 ? rc : nr;
8526 }
8527
8528 /**
8529  * struct verify_mirror_id - Mirror id to be verified.
8530  * @mirror_id:   A specified mirror id.
8531  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
8532  */
8533 struct verify_mirror_id {
8534         __u16 mirror_id;
8535         bool is_valid_id;
8536 };
8537
8538 /**
8539  * compare_mirror_ids() - Compare mirror ids.
8540  * @layout: Mirror component list.
8541  * @cbdata: Callback data in verify_mirror_id structure.
8542  *
8543  * This is a callback function called by llapi_layout_comp_iterate()
8544  * to compare the specified mirror id with the one in the current
8545  * component of @layout. If they are the same, then the specified
8546  * mirror id is valid.
8547  *
8548  * Return: a negative error code on failure or
8549  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
8550  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
8551  */
8552 static inline
8553 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
8554 {
8555         struct verify_mirror_id *mirror_id_cbdata =
8556                                  (struct verify_mirror_id *)cbdata;
8557         uint32_t mirror_id;
8558         int rc = 0;
8559
8560         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
8561         if (rc < 0) {
8562                 rc = -errno;
8563                 fprintf(stderr,
8564                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
8565                         progname, strerror(errno));
8566                 return rc;
8567         }
8568
8569         if (mirror_id_cbdata->mirror_id == mirror_id) {
8570                 mirror_id_cbdata->is_valid_id = true;
8571                 return LLAPI_LAYOUT_ITER_STOP;
8572         }
8573
8574         return LLAPI_LAYOUT_ITER_CONT;
8575 }
8576
8577 /**
8578  * verify_mirror_ids() - Verify specified mirror ids.
8579  * @fname:      Mirrored file name.
8580  * @mirror_ids: Specified mirror ids to be verified.
8581  * @ids_nr:     Number of specified mirror ids.
8582  *
8583  * This function verifies that specified @mirror_ids are valid
8584  * in the mirrored file @fname.
8585  *
8586  * Return: 0 on success or a negative error code on failure.
8587  */
8588 static inline
8589 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
8590 {
8591         struct llapi_layout *layout = NULL;
8592         struct verify_mirror_id mirror_id_cbdata = { 0 };
8593         struct stat stbuf;
8594         uint32_t flr_state;
8595         int i;
8596         int fd;
8597         int rc = 0;
8598         int rc2 = 0;
8599
8600         if (ids_nr <= 0)
8601                 return -EINVAL;
8602
8603         if (stat(fname, &stbuf) < 0) {
8604                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8605                         progname, fname, strerror(errno));
8606                 rc = -errno;
8607                 goto error;
8608         }
8609
8610         if (!S_ISREG(stbuf.st_mode)) {
8611                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8612                         progname, fname);
8613                 rc = -EINVAL;
8614                 goto error;
8615         }
8616
8617         fd = open(fname, O_DIRECT | O_RDONLY);
8618         if (fd < 0) {
8619                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8620                         progname, fname, strerror(errno));
8621                 rc = -errno;
8622                 goto error;
8623         }
8624
8625         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
8626         if (rc < 0) {
8627                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
8628                         progname, fname, strerror(errno));
8629                 goto close_fd;
8630         }
8631
8632         layout = llapi_layout_get_by_fd(fd, 0);
8633         if (layout == NULL) {
8634                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8635                         progname, fname, strerror(errno));
8636                 rc = -errno;
8637                 llapi_lease_release(fd);
8638                 goto close_fd;
8639         }
8640
8641         rc = llapi_layout_flags_get(layout, &flr_state);
8642         if (rc < 0) {
8643                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8644                         progname, fname, strerror(errno));
8645                 rc = -errno;
8646                 goto free_layout;
8647         }
8648
8649         flr_state &= LCM_FL_FLR_MASK;
8650         switch (flr_state) {
8651         case LCM_FL_NONE:
8652                 rc = -EINVAL;
8653                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
8654                         progname, fname, llapi_layout_flags_string(flr_state));
8655                 goto free_layout;
8656         default:
8657                 break;
8658         }
8659
8660         rc2 = 0;
8661         for (i = 0; i < ids_nr; i++) {
8662                 mirror_id_cbdata.mirror_id = mirror_ids[i];
8663                 mirror_id_cbdata.is_valid_id = false;
8664
8665                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
8666                                                &mirror_id_cbdata);
8667                 if (rc < 0) {
8668                         rc = -errno;
8669                         fprintf(stderr,
8670                                 "%s: '%s' failed to verify mirror id: %u.\n",
8671                                 progname, fname, mirror_ids[i]);
8672                         goto free_layout;
8673                 }
8674
8675                 if (!mirror_id_cbdata.is_valid_id) {
8676                         rc2 = -EINVAL;
8677                         fprintf(stderr,
8678                                 "%s: '%s' invalid specified mirror id: %u.\n",
8679                                 progname, fname, mirror_ids[i]);
8680                 }
8681         }
8682         rc = rc2;
8683
8684 free_layout:
8685         llapi_layout_free(layout);
8686         llapi_lease_release(fd);
8687 close_fd:
8688         close(fd);
8689 error:
8690         return rc;
8691 }
8692
8693 static inline
8694 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
8695                            __u16 *mirror_ids, int ids_nr)
8696 {
8697         struct llapi_resync_comp comp_array[1024] = { { 0 } };
8698         struct llapi_layout *layout;
8699         struct stat stbuf;
8700         uint32_t flr_state;
8701         uint64_t start;
8702         uint64_t end;
8703         int comp_size = 0;
8704         int idx;
8705         int fd;
8706         int rc;
8707
8708         if (stat(fname, &stbuf) < 0) {
8709                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8710                         progname, fname, strerror(errno));
8711                 rc = -errno;
8712                 goto error;
8713         }
8714         if (!S_ISREG(stbuf.st_mode)) {
8715                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8716                         progname, fname);
8717                 rc = -EINVAL;
8718                 goto error;
8719         }
8720
8721         fd = open(fname, O_DIRECT | O_RDWR);
8722         if (fd < 0) {
8723                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8724                         progname, fname, strerror(errno));
8725                 rc = -errno;
8726                 goto error;
8727         }
8728
8729         layout = llapi_layout_get_by_fd(fd, 0);
8730         if (layout == NULL) {
8731                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8732                         progname, fname, strerror(errno));
8733                 rc = -errno;
8734                 goto close_fd;
8735         }
8736
8737         rc = llapi_layout_flags_get(layout, &flr_state);
8738         if (rc) {
8739                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8740                         progname, fname, strerror(errno));
8741                 rc = -errno;
8742                 goto free_layout;
8743         }
8744
8745         flr_state &= LCM_FL_FLR_MASK;
8746         if (flr_state == LCM_FL_NONE) {
8747                 rc = -EINVAL;
8748                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
8749                         progname, fname);
8750                 goto free_layout;
8751         }
8752
8753         /* get stale component info */
8754         comp_size = llapi_mirror_find_stale(layout, comp_array,
8755                                             ARRAY_SIZE(comp_array),
8756                                             mirror_ids, ids_nr);
8757         if (comp_size <= 0) {
8758                 rc = comp_size;
8759                 goto free_layout;
8760         }
8761
8762         ioc->lil_mode = LL_LEASE_WRLCK;
8763         ioc->lil_flags = LL_LEASE_RESYNC;
8764         rc = llapi_lease_set(fd, ioc);
8765         if (rc < 0) {
8766                 if (rc == -EALREADY)
8767                         rc = 0;
8768                 else
8769                         fprintf(stderr,
8770                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
8771                                 progname, fname, strerror(errno));
8772                 goto free_layout;
8773         }
8774
8775         /* get the read range [start, end) */
8776         start = comp_array[0].lrc_start;
8777         end = comp_array[0].lrc_end;
8778         for (idx = 1; idx < comp_size; idx++) {
8779                 if (comp_array[idx].lrc_start < start)
8780                         start = comp_array[idx].lrc_start;
8781                 if (end < comp_array[idx].lrc_end)
8782                         end = comp_array[idx].lrc_end;
8783         }
8784
8785         rc = llapi_lease_check(fd);
8786         if (rc != LL_LEASE_WRLCK) {
8787                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
8788                         progname, fname);
8789                 goto free_layout;
8790         }
8791
8792         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
8793                                       start, end);
8794         if (rc < 0)
8795                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %d.\n",
8796                         progname, fname, rc);
8797
8798         /* prepare ioc for lease put */
8799         ioc->lil_mode = LL_LEASE_UNLCK;
8800         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
8801         ioc->lil_count = 0;
8802         for (idx = 0; idx < comp_size; idx++) {
8803                 if (comp_array[idx].lrc_synced) {
8804                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
8805                         ioc->lil_count++;
8806                 }
8807         }
8808
8809         rc = llapi_lease_set(fd, ioc);
8810         if (rc <= 0) {
8811                 if (rc == 0) /* lost lease lock */
8812                         rc = -EBUSY;
8813                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
8814                         progname, fname, strerror(errno));
8815                 goto free_layout;
8816         }
8817         /**
8818          * llapi_lease_set returns lease mode when it request to unlock
8819          * the lease lock
8820          */
8821         rc = 0;
8822
8823 free_layout:
8824         llapi_layout_free(layout);
8825 close_fd:
8826         close(fd);
8827 error:
8828         return rc;
8829 }
8830
8831 static inline int lfs_mirror_resync(int argc, char **argv)
8832 {
8833         struct ll_ioc_lease *ioc = NULL;
8834         __u16 mirror_ids[128] = { 0 };
8835         int ids_nr = 0;
8836         int c;
8837         int rc = 0;
8838
8839         struct option long_opts[] = {
8840         { .val = 'o',   .name = "only",         .has_arg = required_argument },
8841         { .name = NULL } };
8842
8843         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
8844                 switch (c) {
8845                 case 'o':
8846                         rc = parse_mirror_ids(mirror_ids,
8847                                         sizeof(mirror_ids) / sizeof(__u16),
8848                                         optarg);
8849                         if (rc < 0) {
8850                                 fprintf(stderr,
8851                                         "%s: bad mirror ids '%s'.\n",
8852                                         argv[0], optarg);
8853                                 goto error;
8854                         }
8855                         ids_nr = rc;
8856                         break;
8857                 default:
8858                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
8859                                 argv[0], argv[optind - 1]);
8860                         rc = -EINVAL;
8861                         goto error;
8862                 }
8863         }
8864
8865         if (argc == optind) {
8866                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
8867                 rc = CMD_HELP;
8868                 goto error;
8869         }
8870
8871         if (ids_nr > 0 && argc > optind + 1) {
8872                 fprintf(stderr,
8873                     "%s: option '--only' cannot be used upon multiple files.\n",
8874                         argv[0]);
8875                 rc = CMD_HELP;
8876                 goto error;
8877
8878         }
8879
8880         if (ids_nr > 0) {
8881                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
8882                 if (rc < 0)
8883                         goto error;
8884         }
8885
8886         /* set the lease on the file */
8887         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
8888         if (ioc == NULL) {
8889                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
8890                         argv[0], strerror(errno));
8891                 rc = -errno;
8892                 goto error;
8893         }
8894
8895         for (; optind < argc; optind++) {
8896                 rc = lfs_mirror_resync_file(argv[optind], ioc,
8897                                             mirror_ids, ids_nr);
8898                 /* ignore previous file's error, continue with next file */
8899
8900                 /* reset ioc */
8901                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
8902         }
8903
8904         free(ioc);
8905 error:
8906         return rc;
8907 }
8908
8909 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
8910 {
8911         struct llapi_layout *layout;
8912         int rc;
8913
8914         layout = llapi_layout_get_by_fd(fd, 0);
8915         if (layout == NULL) {
8916                 fprintf(stderr, "could not get layout.\n");
8917                 return  -EINVAL;
8918         }
8919
8920         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
8921         if (rc < 0) {
8922                 fprintf(stderr, "failed to iterate layout\n");
8923                 llapi_layout_free(layout);
8924
8925                 return rc;
8926         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
8927                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
8928                 llapi_layout_free(layout);
8929
8930                 return -EINVAL;
8931         }
8932         llapi_layout_free(layout);
8933
8934         return 0;
8935 }
8936
8937 /**
8938  * Check whether two files are the same file
8939  * \retval      0  same file
8940  * \retval      1  not the same file
8941  * \retval      <0 error code
8942  */
8943 static inline int check_same_file(const char *f1, const char *f2)
8944 {
8945         struct stat stbuf1;
8946         struct stat stbuf2;
8947
8948         if (stat(f1, &stbuf1) < 0) {
8949                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8950                         progname, f1, strerror(errno));
8951                 return -errno;
8952         }
8953
8954         if (stat(f2, &stbuf2) < 0) {
8955                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8956                         progname, f2, strerror(errno));
8957                 return -errno;
8958         }
8959
8960         if (stbuf1.st_rdev == stbuf2.st_rdev &&
8961             stbuf1.st_ino == stbuf2.st_ino)
8962                 return 0;
8963
8964         return 1;
8965 }
8966
8967 static inline int lfs_mirror_read(int argc, char **argv)
8968 {
8969         int rc = CMD_HELP;
8970         __u16 mirror_id = 0;
8971         const char *outfile = NULL;
8972         char *fname;
8973         int fd = 0;
8974         int outfd;
8975         int c;
8976         void *buf;
8977         const size_t buflen = 4 << 20;
8978         off_t pos;
8979         struct option long_opts[] = {
8980         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
8981         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
8982         { .name = NULL } };
8983
8984         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
8985                 char *end;
8986
8987                 switch (c) {
8988                 case 'N':
8989                         mirror_id = strtoul(optarg, &end, 0);
8990                         if (*end != '\0' || mirror_id == 0) {
8991                                 fprintf(stderr,
8992                                         "%s %s: invalid mirror ID '%s'\n",
8993                                         progname, argv[0], optarg);
8994                                 return rc;
8995                         }
8996                         break;
8997                 case 'o':
8998                         outfile = optarg;
8999                         break;
9000                 default:
9001                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9002                                 progname, argv[optind - 1]);
9003                         return -EINVAL;
9004                 }
9005         }
9006
9007         if (argc == optind) {
9008                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9009                         progname, argv[0]);
9010                 return rc;
9011         } else if (argc > optind + 1) {
9012                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9013                 return rc;
9014         }
9015
9016         if (mirror_id == 0) {
9017                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9018                         progname, argv[0]);
9019                 return rc;
9020         }
9021
9022         /* open mirror file */
9023         fname = argv[optind];
9024
9025         if (outfile) {
9026                 rc = check_same_file(fname, outfile);
9027                 if (rc == 0) {
9028                         fprintf(stderr,
9029                         "%s %s: output file cannot be the mirrored file\n",
9030                                 progname, argv[0]);
9031                         return -EINVAL;
9032                 }
9033                 if (rc < 0)
9034                         return rc;
9035         }
9036
9037         fd = open(fname, O_DIRECT | O_RDONLY);
9038         if (fd < 0) {
9039                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9040                         progname, argv[0], fname, strerror(errno));
9041                 return rc;
9042         }
9043
9044         /* verify mirror id */
9045         rc = verify_mirror_id_by_fd(fd, mirror_id);
9046         if (rc) {
9047                 fprintf(stderr,
9048                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9049                         progname, argv[0], mirror_id, fname);
9050                 goto close_fd;
9051         }
9052
9053         /* open output file */
9054         if (outfile) {
9055                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
9056                 if (outfd < 0) {
9057                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
9058                                 progname, argv[0], outfile, strerror(errno));
9059                         rc = -errno;
9060                         goto close_fd;
9061                 }
9062         } else {
9063                 outfd = STDOUT_FILENO;
9064         }
9065
9066         /* allocate buffer */
9067         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
9068         if (rc) {
9069                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9070                                 progname, argv[0], rc);
9071                 goto close_outfd;
9072         }
9073
9074         pos = 0;
9075         while (1) {
9076                 ssize_t bytes_read;
9077                 ssize_t written = 0;
9078
9079                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
9080                 if (bytes_read < 0) {
9081                         rc = bytes_read;
9082                         fprintf(stderr,
9083                                 "%s %s: fail to read data from mirror %u: %s\n",
9084                                 progname, argv[0], mirror_id, strerror(-rc));
9085                         goto free_buf;
9086                 }
9087
9088                 /* EOF reached */
9089                 if (bytes_read == 0)
9090                         break;
9091
9092                 while (written < bytes_read) {
9093                         ssize_t written2;
9094
9095                         written2 = write(outfd, buf + written,
9096                                          bytes_read - written);
9097                         if (written2 < 0) {
9098                                 fprintf(stderr,
9099                                         "%s %s: fail to write %s: %s\n",
9100                                         progname, argv[0], outfile ? : "STDOUT",
9101                                         strerror(errno));
9102                                 rc = -errno;
9103                                 goto free_buf;
9104                         }
9105                         written += written2;
9106                 }
9107
9108                 if (written != bytes_read) {
9109                         fprintf(stderr,
9110                 "%s %s: written %ld bytes does not match with %ld read.\n",
9111                                 progname, argv[0], written, bytes_read);
9112                         rc = -EIO;
9113                         goto free_buf;
9114                 }
9115
9116                 pos += bytes_read;
9117         }
9118
9119         fsync(outfd);
9120         rc = 0;
9121
9122 free_buf:
9123         free(buf);
9124 close_outfd:
9125         if (outfile)
9126                 close(outfd);
9127 close_fd:
9128         close(fd);
9129
9130         return rc;
9131 }
9132
9133 static inline int lfs_mirror_write(int argc, char **argv)
9134 {
9135         int rc = CMD_HELP;
9136         __u16 mirror_id = 0;
9137         const char *inputfile = NULL;
9138         char *fname;
9139         int fd = 0;
9140         int inputfd;
9141         int c;
9142         void *buf;
9143         const size_t buflen = 4 << 20;
9144         off_t pos;
9145         size_t page_size = sysconf(_SC_PAGESIZE);
9146         struct ll_ioc_lease_id ioc;
9147
9148         struct option long_opts[] = {
9149         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
9150         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
9151         { .name = NULL } };
9152
9153         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
9154                 char *end;
9155
9156                 switch (c) {
9157                 case 'N':
9158                         mirror_id = strtoul(optarg, &end, 0);
9159                         if (*end != '\0' || mirror_id == 0) {
9160                                 fprintf(stderr,
9161                                         "%s %s: invalid mirror ID '%s'\n",
9162                                         progname, argv[0], optarg);
9163                                 return rc;
9164                         }
9165                         break;
9166                 case 'i':
9167                         inputfile = optarg;
9168                         break;
9169                 default:
9170                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9171                                 progname, argv[optind - 1]);
9172                         return -EINVAL;
9173                 }
9174         }
9175
9176         if (argc == optind) {
9177                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9178                         progname, argv[0]);
9179                 return rc;
9180         } else if (argc > optind + 1) {
9181                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9182                 return rc;
9183         }
9184
9185         if (mirror_id == 0) {
9186                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9187                         progname, argv[0]);
9188                 return rc;
9189         }
9190
9191         /* open mirror file */
9192         fname = argv[optind];
9193
9194         if (inputfile) {
9195                 rc = check_same_file(fname, inputfile);
9196                 if (rc == 0) {
9197                         fprintf(stderr,
9198                         "%s %s: input file cannot be the mirrored file\n",
9199                                 progname, argv[0]);
9200                         return -EINVAL;
9201                 }
9202                 if (rc < 0)
9203                         return rc;
9204         }
9205
9206         fd = open(fname, O_DIRECT | O_WRONLY);
9207         if (fd < 0) {
9208                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9209                         progname, argv[0], fname, strerror(errno));
9210                 return rc;
9211         }
9212
9213         /* verify mirror id */
9214         rc = verify_mirror_id_by_fd(fd, mirror_id);
9215         if (rc) {
9216                 fprintf(stderr,
9217                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9218                         progname, argv[0], mirror_id, fname);
9219                 goto close_fd;
9220         }
9221
9222         /* open input file */
9223         if (inputfile) {
9224                 inputfd = open(inputfile, O_RDONLY, 0644);
9225                 if (inputfd < 0) {
9226                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
9227                                 progname, argv[0], inputfile, strerror(errno));
9228                         rc = -errno;
9229                         goto close_fd;
9230                 }
9231         } else {
9232                 inputfd = STDIN_FILENO;
9233         }
9234
9235         /* allocate buffer */
9236         rc = posix_memalign(&buf, page_size, buflen);
9237         if (rc) {
9238                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9239                         progname, argv[0], rc);
9240                 goto close_inputfd;
9241         }
9242
9243         /* prepare target mirror components instantiation */
9244         ioc.lil_mode = LL_LEASE_WRLCK;
9245         ioc.lil_flags = LL_LEASE_RESYNC;
9246         ioc.lil_mirror_id = mirror_id;
9247         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
9248         if (rc < 0) {
9249                 fprintf(stderr,
9250                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
9251                         progname, argv[0], fname, strerror(errno));
9252                 goto free_buf;
9253         }
9254
9255         pos = 0;
9256         while (1) {
9257                 ssize_t bytes_read;
9258                 ssize_t written;
9259                 size_t to_write;
9260
9261                 rc = llapi_lease_check(fd);
9262                 if (rc != LL_LEASE_WRLCK) {
9263                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
9264                                 progname, argv[0], fname);
9265                         goto free_buf;
9266                 }
9267
9268                 bytes_read = read(inputfd, buf, buflen);
9269                 if (bytes_read < 0) {
9270                         rc = bytes_read;
9271                         fprintf(stderr,
9272                                 "%s %s: fail to read data from '%s': %s\n",
9273                                 progname, argv[0], inputfile ? : "STDIN",
9274                                 strerror(errno));
9275                         rc = -errno;
9276                         goto free_buf;
9277                 }
9278
9279                 /* EOF reached */
9280                 if (bytes_read == 0)
9281                         break;
9282
9283                 /* round up to page align to make direct IO happy. */
9284                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
9285
9286                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
9287                                              pos);
9288                 if (written < 0) {
9289                         rc = written;
9290                         fprintf(stderr,
9291                               "%s %s: fail to write to mirror %u: %s\n",
9292                                 progname, argv[0], mirror_id,
9293                                 strerror(-rc));
9294                         goto free_buf;
9295                 }
9296
9297                 pos += bytes_read;
9298         }
9299
9300         if (pos & (page_size - 1)) {
9301                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
9302                 if (rc < 0)
9303                         goto free_buf;
9304         }
9305
9306         ioc.lil_mode = LL_LEASE_UNLCK;
9307         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
9308         ioc.lil_count = 0;
9309         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
9310         if (rc <= 0) {
9311                 if (rc == 0)
9312                         rc = -EBUSY;
9313                 fprintf(stderr,
9314                         "%s %s: release lease lock of '%s' failed: %s\n",
9315                         progname, argv[0], fname, strerror(errno));
9316                 goto free_buf;
9317         }
9318
9319         rc = 0;
9320
9321 free_buf:
9322         free(buf);
9323 close_inputfd:
9324         if (inputfile)
9325                 close(inputfd);
9326 close_fd:
9327         close(fd);
9328
9329         return rc;
9330 }
9331
9332 struct collect_ids_data {
9333         __u16   *cid_ids;
9334         int     cid_count;
9335         __u16   cid_exclude;
9336 };
9337
9338 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
9339 {
9340         struct collect_ids_data *cid = cbdata;
9341         uint32_t id;
9342         int rc;
9343
9344         rc = llapi_layout_mirror_id_get(layout, &id);
9345         if (rc < 0)
9346                 return rc;
9347
9348         if ((__u16)id != cid->cid_exclude) {
9349                 int i;
9350
9351                 for (i = 0; i < cid->cid_count; i++) {
9352                         /* already collected the mirror id */
9353                         if (id == cid->cid_ids[i])
9354                                 return LLAPI_LAYOUT_ITER_CONT;
9355                 }
9356                 cid->cid_ids[cid->cid_count] = id;
9357                 cid->cid_count++;
9358         }
9359
9360         return LLAPI_LAYOUT_ITER_CONT;
9361 }
9362
9363 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
9364 {
9365         struct llapi_layout *layout;
9366         struct collect_ids_data cid = { .cid_ids = ids,
9367                                         .cid_count = 0,
9368                                         .cid_exclude = exclude_id, };
9369         int rc;
9370
9371         layout = llapi_layout_get_by_fd(fd, 0);
9372         if (layout == NULL) {
9373                 fprintf(stderr, "could not get layout\n");
9374                 return -EINVAL;
9375         }
9376
9377         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
9378         if (rc < 0) {
9379                 fprintf(stderr, "failed to iterate layout\n");
9380                 llapi_layout_free(layout);
9381
9382                 return rc;
9383         }
9384         llapi_layout_free(layout);
9385
9386         return cid.cid_count;
9387 }
9388
9389 static inline int lfs_mirror_copy(int argc, char **argv)
9390 {
9391         int rc = CMD_HELP;
9392         __u16 read_mirror_id = 0;
9393         __u16 ids[128] = { 0 };
9394         int count = 0;
9395         struct llapi_layout *layout = NULL;
9396         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9397         int comp_size = 0;
9398         char *fname;
9399         int fd = 0;
9400         int c;
9401         int i;
9402         ssize_t copied;
9403         struct ll_ioc_lease *ioc = NULL;
9404         struct ll_ioc_lease_id *resync_ioc;
9405
9406         struct option long_opts[] = {
9407         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
9408         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
9409         { .name = NULL } };
9410
9411         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
9412                 char *end;
9413
9414                 switch (c) {
9415                 case 'i':
9416                         read_mirror_id = strtoul(optarg, &end, 0);
9417                         if (*end != '\0' || read_mirror_id == 0) {
9418                                 fprintf(stderr,
9419                                         "%s %s: invalid read mirror ID '%s'\n",
9420                                         progname, argv[0], optarg);
9421                                 return rc;
9422                         }
9423                         break;
9424                 case 'o':
9425                         if (!strcmp(optarg, "-1")) {
9426                                 /* specify all other mirrors */
9427                                 ids[0] = (__u16)-1;
9428                                 count = 1;
9429                         } else {
9430                                 count = parse_mirror_ids((__u16 *)ids,
9431                                                          ARRAY_SIZE(ids),
9432                                                          optarg);
9433                                 if (count < 0)
9434                                         return rc;
9435                         }
9436                         break;
9437                 default:
9438                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9439                                 progname, argv[optind - 1]);
9440                         return -EINVAL;
9441                 }
9442         }
9443
9444         if (argc == optind) {
9445                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9446                         progname, argv[0]);
9447                 return rc;
9448         } else if (argc > optind + 1) {
9449                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9450                 return rc;
9451         }
9452
9453         if (read_mirror_id == 0) {
9454                 fprintf(stderr,
9455                         "%s %s: no valid read mirror ID %d is provided\n",
9456                         progname, argv[0], read_mirror_id);
9457                 return rc;
9458         }
9459
9460         if (count == 0) {
9461                 fprintf(stderr,
9462                         "%s %s: no write mirror ID is provided\n",
9463                         progname, argv[0]);
9464                 return rc;
9465         }
9466
9467         for (i = 0; i < count; i++) {
9468                 if (read_mirror_id == ids[i]) {
9469                         fprintf(stderr,
9470                         "%s %s: read and write mirror ID cannot be the same\n",
9471                                 progname, argv[0]);
9472                         return rc;
9473                 }
9474         }
9475
9476         /* open mirror file */
9477         fname = argv[optind];
9478
9479         fd = open(fname, O_DIRECT | O_RDWR);
9480         if (fd < 0) {
9481                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9482                         progname, argv[0], fname, strerror(errno));
9483                 return rc;
9484         }
9485
9486         /* write to all other mirrors */
9487         if (ids[0] == (__u16)-1) {
9488                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
9489                 if (count <= 0) {
9490                         rc = count;
9491                         fprintf(stderr,
9492                         "%s %s: failed to get other mirror ids in '%s': %d\n",
9493                                 progname, argv[0], fname, rc);
9494                         goto close_fd;
9495                 }
9496         }
9497
9498         /* verify mirror id */
9499         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
9500         if (rc) {
9501                 fprintf(stderr,
9502                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9503                         progname, argv[0], read_mirror_id, fname);
9504                 goto close_fd;
9505         }
9506
9507         for (i = 0; i < count; i++) {
9508                 rc = verify_mirror_id_by_fd(fd, ids[i]);
9509                 if (rc) {
9510                         fprintf(stderr,
9511                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9512                                 progname, argv[0], ids[i], fname);
9513                         goto close_fd;
9514                 }
9515         }
9516
9517         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9518         if (ioc == NULL) {
9519                 fprintf(stderr,
9520                         "%s %s: cannot alloc comp id array for ioc: %s\n",
9521                         progname, argv[0], strerror(errno));
9522                 rc = -errno;
9523                 goto close_fd;
9524         }
9525
9526         /* get stale component info */
9527         layout = llapi_layout_get_by_fd(fd, 0);
9528         if (layout == NULL) {
9529                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
9530                         progname, argv[0], fname, strerror(errno));
9531                 rc = -errno;
9532                 goto free_ioc;
9533         }
9534         comp_size = llapi_mirror_find_stale(layout, comp_array,
9535                                             ARRAY_SIZE(comp_array),
9536                                             ids, count);
9537         llapi_layout_free(layout);
9538         if (comp_size < 0) {
9539                 rc = comp_size;
9540                 goto free_ioc;
9541         }
9542
9543         /* prepare target mirror components instantiation */
9544         resync_ioc = (struct ll_ioc_lease_id *)ioc;
9545         resync_ioc->lil_mode = LL_LEASE_WRLCK;
9546         resync_ioc->lil_flags = LL_LEASE_RESYNC;
9547         if (count == 1)
9548                 resync_ioc->lil_mirror_id = ids[0];
9549         else
9550                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
9551         rc = llapi_lease_set(fd, ioc);
9552         if (rc < 0) {
9553                 fprintf(stderr,
9554                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
9555                         progname, argv[0], fname, strerror(errno));
9556                 goto free_ioc;
9557         }
9558
9559         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
9560         if (copied < 0) {
9561                 rc = copied;
9562                 fprintf(stderr, "%s %s: copy error: %d\n",
9563                         progname, argv[0], rc);
9564                 goto free_ioc;
9565         }
9566
9567         fprintf(stdout, "mirror copied successfully: ");
9568         for (i = 0; i < copied; i++)
9569                 fprintf(stdout, "%d ", ids[i]);
9570         fprintf(stdout, "\n");
9571
9572         ioc->lil_mode = LL_LEASE_UNLCK;
9573         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
9574         ioc->lil_count = 0;
9575         for (i = 0; i < comp_size; i++) {
9576                 int j;
9577
9578                 for (j = 0; j < copied; j++) {
9579                         if (comp_array[i].lrc_mirror_id != ids[j])
9580                                 continue;
9581
9582                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
9583                         ioc->lil_count++;
9584                 }
9585         }
9586         rc = llapi_lease_set(fd, ioc);
9587         if (rc <= 0) {
9588                 if (rc == 0)
9589                         rc = -EBUSY;
9590                 fprintf(stderr,
9591                         "%s %s: release lease lock of '%s' failed: %s\n",
9592                         progname, argv[0], fname, strerror(errno));
9593                 goto free_ioc;
9594         }
9595
9596         rc = 0;
9597
9598 free_ioc:
9599         free(ioc);
9600 close_fd:
9601         close(fd);
9602
9603         return rc;
9604 }
9605 /**
9606  * struct verify_chunk - Mirror chunk to be verified.
9607  * @chunk:        [start, end) of the chunk.
9608  * @mirror_count: Number of mirror ids in @mirror_id array.
9609  * @mirror_id:    Array of valid mirror ids that cover the chunk.
9610  */
9611 struct verify_chunk {
9612         struct lu_extent chunk;
9613         unsigned int mirror_count;
9614         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
9615 };
9616
9617 /**
9618  * print_chunks() - Print chunk information.
9619  * @fname:       Mirrored file name.
9620  * @chunks:      Array of chunks.
9621  * @chunk_count: Number of chunks in @chunks array.
9622  *
9623  * This function prints [start, end) of each chunk in @chunks
9624  * for mirrored file @fname, and also prints the valid mirror ids
9625  * that cover the chunk.
9626  *
9627  * Return: void.
9628  */
9629 static inline
9630 void print_chunks(const char *fname, struct verify_chunk *chunks,
9631                   int chunk_count)
9632 {
9633         int i;
9634         int j;
9635
9636         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
9637         for (i = 0; i < chunk_count; i++) {
9638                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
9639
9640                 if (chunks[i].mirror_count == 0)
9641                         fprintf(stdout, "\t[");
9642                 else {
9643                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
9644                         for (j = 1; j < chunks[i].mirror_count; j++)
9645                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
9646                 }
9647                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
9648         }
9649         fprintf(stdout, "\n");
9650 }
9651
9652 /**
9653  * print_checksums() - Print CRC-32 checksum values.
9654  * @chunk: A chunk and its corresponding valid mirror ids.
9655  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
9656  *
9657  * This function prints CRC-32 checksum values on @chunk for
9658  * each valid mirror that covers it.
9659  *
9660  * Return: void.
9661  */
9662 static inline
9663 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
9664 {
9665         int i;
9666
9667         fprintf(stdout,
9668                 "CRC-32 checksum value for chunk "DEXT":\n",
9669                 PEXT(&chunk->chunk));
9670         for (i = 0; i < chunk->mirror_count; i++)
9671                 fprintf(stdout, "Mirror %u:\t%#lx\n",
9672                         chunk->mirror_id[i], crc[i]);
9673         fprintf(stdout, "\n");
9674 }
9675
9676 /**
9677  * filter_mirror_id() - Filter specified mirror ids.
9678  * @chunks:      Array of chunks.
9679  * @chunk_count: Number of chunks in @chunks array.
9680  * @mirror_ids:  Specified mirror ids to be verified.
9681  * @ids_nr:      Number of specified mirror ids.
9682  *
9683  * This function scans valid mirror ids that cover each chunk in @chunks
9684  * and filters specified mirror ids.
9685  *
9686  * Return: void.
9687  */
9688 static inline
9689 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
9690                       __u16 *mirror_ids, int ids_nr)
9691 {
9692         int i;
9693         int j;
9694         int k;
9695         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9696         unsigned int valid_count = 0;
9697
9698         for (i = 0; i < chunk_count; i++) {
9699                 if (chunks[i].mirror_count == 0)
9700                         continue;
9701
9702                 valid_count = 0;
9703                 for (j = 0; j < ids_nr; j++) {
9704                         for (k = 0; k < chunks[i].mirror_count; k++) {
9705                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
9706                                         valid_id[valid_count] = mirror_ids[j];
9707                                         valid_count++;
9708                                         break;
9709                                 }
9710                         }
9711                 }
9712
9713                 memcpy(chunks[i].mirror_id, valid_id,
9714                        sizeof(__u16) * valid_count);
9715                 chunks[i].mirror_count = valid_count;
9716         }
9717 }
9718
9719 /**
9720  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
9721  * @layout:      Mirror component list.
9722  * @chunks:      Array of chunks.
9723  * @chunks_size: Array size of @chunks.
9724  *
9725  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
9726  * to find out chunk segments and store them in @chunks array.
9727  *
9728  * The @mirror_id array in each element of @chunks will store the valid
9729  * mirror ids that cover the chunk. If a mirror component covering the
9730  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
9731  * will not be stored into the @mirror_id array, and the chunk for that
9732  * mirror will not be verified.
9733  *
9734  * The @mirror_count in each element of @chunks will store the number of
9735  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
9736  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
9737  * indicates the chunk is valid in only one mirror. In both cases, the
9738  * chunk will not be verified.
9739  *
9740  * Here is an example:
9741  *
9742  *  0      1M     2M     3M     4M           EOF
9743  *  +------+-------------+--------------------+
9744  *  |      |             |      S             |       mirror1
9745  *  +------+------+------+------+-------------+
9746  *  |             |   S  |   S  |             |       mirror2
9747  *  +-------------+------+------+-------------+
9748  *
9749  * prepared @chunks array will contain 5 elements:
9750  * (([0, 1M), [1, 2], 2),
9751  *  ([1M, 2M), [1, 2], 2),
9752  *  ([2M, 3M), [1], 1),
9753  *  ([3M, 4M], [], 0),
9754  *  ([4M, EOF), [2], 1))
9755  *
9756  * Return: the actual array size of @chunks on success
9757  *         or a negative error code on failure.
9758  */
9759 static inline
9760 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
9761                              struct verify_chunk *chunks,
9762                              size_t chunks_size)
9763 {
9764         uint64_t start;
9765         uint64_t end;
9766         uint32_t mirror_id;
9767         uint32_t flags;
9768         int idx = 0;
9769         int i = 0;
9770         int rc = 0;
9771
9772         memset(chunks, 0, sizeof(*chunks) * chunks_size);
9773
9774         while (1) {
9775                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
9776                 if (rc < 0) {
9777                         fprintf(stderr,
9778                                 "%s: move to the first layout component: %s.\n",
9779                                 progname, strerror(errno));
9780                         goto error;
9781                 }
9782
9783                 i = 0;
9784                 rc = 0;
9785                 chunks[idx].chunk.e_end = LUSTRE_EOF;
9786                 while (rc == 0) {
9787                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
9788                         if (rc < 0) {
9789                                 fprintf(stderr,
9790                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
9791                                         progname, strerror(errno));
9792                                 goto error;
9793                         }
9794
9795                         if (start > chunks[idx].chunk.e_start ||
9796                             end <= chunks[idx].chunk.e_start)
9797                                 goto next;
9798
9799                         if (end < chunks[idx].chunk.e_end)
9800                                 chunks[idx].chunk.e_end = end;
9801
9802                         rc = llapi_layout_comp_flags_get(layout, &flags);
9803                         if (rc < 0) {
9804                                 fprintf(stderr,
9805                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
9806                                         progname, strerror(errno));
9807                                 goto error;
9808                         }
9809
9810                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
9811                                 goto next;
9812
9813                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9814                         if (rc < 0) {
9815                                 fprintf(stderr,
9816                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9817                                         progname, strerror(errno));
9818                                 goto error;
9819                         }
9820
9821                         chunks[idx].mirror_id[i] = mirror_id;
9822                         i++;
9823                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
9824                                 fprintf(stderr,
9825                                         "%s: mirror_id array is too small.\n",
9826                                         progname);
9827                                 rc = -EINVAL;
9828                                 goto error;
9829                         }
9830
9831                 next:
9832                         rc = llapi_layout_comp_use(layout,
9833                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
9834                         if (rc < 0) {
9835                                 fprintf(stderr,
9836                                         "%s: move to the next layout component: %s.\n",
9837                                         progname, strerror(errno));
9838                                 goto error;
9839                         }
9840                 } /* loop through all components */
9841
9842                 chunks[idx].mirror_count = i;
9843
9844                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
9845                         break;
9846
9847                 idx++;
9848                 if (idx >= chunks_size) {
9849                         fprintf(stderr, "%s: chunks array is too small.\n",
9850                                 progname);
9851                         rc = -EINVAL;
9852                         goto error;
9853                 }
9854
9855                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
9856         }
9857
9858 error:
9859         return rc < 0 ? rc : idx + 1;
9860 }
9861
9862 /**
9863  * lfs_mirror_verify_chunk() - Verify a chunk.
9864  * @fd:        File descriptor of the mirrored file.
9865  * @file_size: Size of the mirrored file.
9866  * @chunk:     A chunk and its corresponding valid mirror ids.
9867  * @verbose:   Verbose mode.
9868  *
9869  * This function verifies a @chunk contains exactly the same data
9870  * ammong the mirrors that cover it.
9871  *
9872  * If @verbose is specified, then the function will print where the
9873  * differences are if the data do not match. Otherwise, it will
9874  * just return an error in that case.
9875  *
9876  * Return: 0 on success or a negative error code on failure.
9877  */
9878 static inline
9879 int lfs_mirror_verify_chunk(int fd, size_t file_size,
9880                             struct verify_chunk *chunk, int verbose)
9881 {
9882         const size_t buflen = 4 * 1024 * 1024; /* 4M */
9883         void *buf;
9884         size_t page_size = sysconf(_SC_PAGESIZE);
9885         ssize_t bytes_read;
9886         ssize_t bytes_done;
9887         size_t count;
9888         off_t pos;
9889         unsigned long crc;
9890         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9891         int i;
9892         int rc = 0;
9893
9894         if (file_size == 0)
9895                 return 0;
9896
9897         rc = posix_memalign(&buf, page_size, buflen);
9898         if (rc) /* error code is returned directly */
9899                 return -rc;
9900
9901         if (verbose > 1) {
9902                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9903                         PEXT(&chunk->chunk));
9904                 for (i = 0; i < chunk->mirror_count; i++)
9905                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9906                 fprintf(stdout, "\n");
9907         }
9908
9909         bytes_done = 0;
9910         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
9911         pos = chunk->chunk.e_start;
9912         while (bytes_done < count) {
9913                 /* compute initial CRC-32 checksum */
9914                 crc = crc32(0L, Z_NULL, 0);
9915                 memset(crc_array, 0, sizeof(crc_array));
9916
9917                 bytes_read = 0;
9918                 for (i = 0; i < chunk->mirror_count; i++) {
9919                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
9920                                                        buf, buflen, pos);
9921                         if (bytes_read < 0) {
9922                                 rc = bytes_read;
9923                                 fprintf(stderr,
9924                                         "%s: failed to read data from mirror %u: %s.\n",
9925                                         progname, chunk->mirror_id[i],
9926                                         strerror(-rc));
9927                                 goto error;
9928                         }
9929
9930                         /* compute new CRC-32 checksum */
9931                         crc_array[i] = crc32(crc, buf, bytes_read);
9932                 }
9933
9934                 if (verbose)
9935                         print_checksums(chunk, crc_array);
9936
9937                 /* compare CRC-32 checksum values */
9938                 for (i = 1; i < chunk->mirror_count; i++) {
9939                         if (crc_array[i] != crc_array[0]) {
9940                                 rc = -EINVAL;
9941
9942                                 fprintf(stderr,
9943                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
9944                                         progname, PEXT(&chunk->chunk),
9945                                         chunk->mirror_id[0],
9946                                         chunk->mirror_id[i]);
9947                         }
9948                 }
9949
9950                 pos += bytes_read;
9951                 bytes_done += bytes_read;
9952         }
9953
9954         if (verbose > 1 && rc == 0) {
9955                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9956                         PEXT(&chunk->chunk));
9957                 for (i = 0; i < chunk->mirror_count; i++)
9958                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9959                 fprintf(stdout, " PASS\n\n");
9960         }
9961
9962 error:
9963         free(buf);
9964         return rc;
9965 }
9966
9967 /**
9968  * lfs_mirror_verify_file() - Verify a mirrored file.
9969  * @fname:      Mirrored file name.
9970  * @mirror_ids: Specified mirror ids to be verified.
9971  * @ids_nr:     Number of specified mirror ids.
9972  * @verbose:    Verbose mode.
9973  *
9974  * This function verifies that each SYNC mirror of a mirrored file
9975  * specified by @fname contains exactly the same data.
9976  *
9977  * If @mirror_ids is specified, then the function will verify the
9978  * mirrors specified by @mirror_ids contain exactly the same data.
9979  *
9980  * If @verbose is specified, then the function will print where the
9981  * differences are if the data do not match. Otherwise, it will
9982  * just return an error in that case.
9983  *
9984  * Return: 0 on success or a negative error code on failure.
9985  */
9986 static inline
9987 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
9988                            int verbose)
9989 {
9990         struct verify_chunk chunks_array[1024] = { };
9991         struct llapi_layout *layout = NULL;
9992         struct stat stbuf;
9993         uint32_t flr_state;
9994         int fd;
9995         int chunk_count = 0;
9996         int idx = 0;
9997         int rc = 0;
9998         int rc1 = 0;
9999         int rc2 = 0;
10000
10001         if (stat(fname, &stbuf) < 0) {
10002                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10003                         progname, fname, strerror(errno));
10004                 rc = -errno;
10005                 goto error;
10006         }
10007
10008         if (!S_ISREG(stbuf.st_mode)) {
10009                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10010                         progname, fname);
10011                 rc = -EINVAL;
10012                 goto error;
10013         }
10014
10015         if (stbuf.st_size == 0) {
10016                 if (verbose)
10017                         fprintf(stdout, "%s: '%s' file size is 0.\n",
10018                                 progname, fname);
10019                 rc = 0;
10020                 goto error;
10021         }
10022
10023         fd = open(fname, O_DIRECT | O_RDONLY);
10024         if (fd < 0) {
10025                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10026                         progname, fname, strerror(errno));
10027                 rc = -errno;
10028                 goto error;
10029         }
10030
10031         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10032         if (rc < 0) {
10033                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10034                         progname, fname, strerror(errno));
10035                 goto close_fd;
10036         }
10037
10038         layout = llapi_layout_get_by_fd(fd, 0);
10039         if (layout == NULL) {
10040                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10041                         progname, fname, strerror(errno));
10042                 rc = -errno;
10043                 llapi_lease_release(fd);
10044                 goto close_fd;
10045         }
10046
10047         rc = llapi_layout_flags_get(layout, &flr_state);
10048         if (rc < 0) {
10049                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10050                         progname, fname, strerror(errno));
10051                 rc = -errno;
10052                 goto free_layout;
10053         }
10054
10055         flr_state &= LCM_FL_FLR_MASK;
10056         switch (flr_state) {
10057         case LCM_FL_NONE:
10058                 rc = -EINVAL;
10059                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10060                         progname, fname, llapi_layout_flags_string(flr_state));
10061                 goto free_layout;
10062         default:
10063                 break;
10064         }
10065
10066         /* find out mirror chunks to be verified */
10067         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
10068                                                ARRAY_SIZE(chunks_array));
10069         if (chunk_count < 0) {
10070                 rc = chunk_count;
10071                 goto free_layout;
10072         }
10073
10074         if (ids_nr > 0)
10075                 /* filter specified mirror ids */
10076                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
10077
10078         if (verbose > 2)
10079                 print_chunks(fname, chunks_array, chunk_count);
10080
10081         for (idx = 0; idx < chunk_count; idx++) {
10082                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
10083                         if (verbose)
10084                                 fprintf(stdout,
10085                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
10086                                         progname, fname,
10087                                         PEXT(&chunks_array[idx].chunk),
10088                                         (unsigned long long)stbuf.st_size);
10089                         break;
10090                 }
10091
10092                 if (chunks_array[idx].mirror_count == 0) {
10093                         fprintf(stderr,
10094                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
10095                                 progname, fname,
10096                                 PEXT(&chunks_array[idx].chunk));
10097                         if (verbose) {
10098                                 fprintf(stderr, "skipped\n");
10099                                 continue;
10100                         }
10101                         rc = -EINVAL;
10102                         fprintf(stderr, "failed\n");
10103                         goto free_layout;
10104                 }
10105
10106                 if (chunks_array[idx].mirror_count == 1) {
10107                         if (verbose)
10108                                 fprintf(stdout,
10109                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
10110                                         progname, fname,
10111                                         PEXT(&chunks_array[idx].chunk),
10112                                         chunks_array[idx].mirror_id[0]);
10113                         continue;
10114                 }
10115
10116                 rc = llapi_lease_check(fd);
10117                 if (rc != LL_LEASE_RDLCK) {
10118                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
10119                                 progname, fname);
10120                         goto free_layout;
10121                 }
10122
10123                 /* verify one chunk */
10124                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
10125                                               &chunks_array[idx], verbose);
10126                 if (rc1 < 0) {
10127                         rc2 = rc1;
10128                         if (!verbose) {
10129                                 rc = rc1;
10130                                 goto free_layout;
10131                         }
10132                 }
10133         }
10134
10135         if (rc2 < 0)
10136                 rc = rc2;
10137
10138 free_layout:
10139         llapi_layout_free(layout);
10140         llapi_lease_release(fd);
10141 close_fd:
10142         close(fd);
10143 error:
10144         return rc;
10145 }
10146
10147 /**
10148  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
10149  * @argc: The count of lfs mirror verify command line arguments.
10150  * @argv: Array of strings for lfs mirror verify command line arguments.
10151  *
10152  * This function parses lfs mirror verify command and verifies the
10153  * specified mirrored file(s).
10154  *
10155  * Return: 0 on success or a negative error code on failure.
10156  */
10157 static inline int lfs_mirror_verify(int argc, char **argv)
10158 {
10159         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10160         int ids_nr = 0;
10161         int c;
10162         int verbose = 0;
10163         int rc = 0;
10164         int rc1 = 0;
10165         char cmd[PATH_MAX];
10166
10167         struct option long_opts[] = {
10168         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10169         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
10170         { .name = NULL } };
10171
10172         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10173         progname = cmd;
10174         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
10175                 switch (c) {
10176                 case 'o':
10177                         rc = parse_mirror_ids(mirror_ids,
10178                                               ARRAY_SIZE(mirror_ids),
10179                                               optarg);
10180                         if (rc < 0) {
10181                                 fprintf(stderr,
10182                                         "%s: bad mirror ids '%s'.\n",
10183                                         progname, optarg);
10184                                 goto error;
10185                         }
10186                         ids_nr = rc;
10187                         if (ids_nr < 2) {
10188                                 fprintf(stderr,
10189                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
10190                                         progname);
10191                                 rc = CMD_HELP;
10192                                 goto error;
10193                         }
10194                         break;
10195                 case 'v':
10196                         verbose++;
10197                         break;
10198                 default:
10199                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
10200                                 progname, argv[optind - 1]);
10201                         rc = -EINVAL;
10202                         goto error;
10203                 }
10204         }
10205
10206         if (argc == optind) {
10207                 fprintf(stderr, "%s: no file name given.\n", progname);
10208                 rc = CMD_HELP;
10209                 goto error;
10210         }
10211
10212         if (ids_nr > 0 && argc > optind + 1) {
10213                 fprintf(stderr,
10214                         "%s: '--only' cannot be used upon multiple files.\n",
10215                         progname);
10216                 rc = CMD_HELP;
10217                 goto error;
10218
10219         }
10220
10221         if (ids_nr > 0) {
10222                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10223                 if (rc < 0)
10224                         goto error;
10225         }
10226
10227         rc = 0;
10228         for (; optind < argc; optind++) {
10229                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
10230                                              verbose);
10231                 if (rc1 < 0)
10232                         rc = rc1;
10233         }
10234 error:
10235         return rc;
10236 }
10237
10238 /**
10239  * lfs_mirror() - Parse and execute lfs mirror commands.
10240  * @argc: The count of lfs mirror command line arguments.
10241  * @argv: Array of strings for lfs mirror command line arguments.
10242  *
10243  * This function parses lfs mirror commands and performs the
10244  * corresponding functions specified in mirror_cmdlist[].
10245  *
10246  * Return: 0 on success or an error code on failure.
10247  */
10248 static int lfs_mirror(int argc, char **argv)
10249 {
10250         char cmd[PATH_MAX];
10251         int rc = 0;
10252
10253         setlinebuf(stdout);
10254
10255         Parser_init("lfs-mirror > ", mirror_cmdlist);
10256
10257         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10258         progname = cmd;
10259         program_invocation_short_name = cmd;
10260         if (argc > 1)
10261                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
10262         else
10263                 rc = Parser_commands();
10264
10265         return rc < 0 ? -rc : rc;
10266 }
10267
10268 static void lustre_som_swab(struct lustre_som_attrs *attrs)
10269 {
10270 #if __BYTE_ORDER == __BIG_ENDIAN
10271         __swab16s(&attrs->lsa_valid);
10272         __swab64s(&attrs->lsa_size);
10273         __swab64s(&attrs->lsa_blocks);
10274 #endif
10275 }
10276
10277 enum lfs_som_type {
10278         LFS_SOM_SIZE = 0x1,
10279         LFS_SOM_BLOCKS = 0x2,
10280         LFS_SOM_FLAGS = 0x4,
10281         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
10282                            LFS_SOM_FLAGS,
10283 };
10284
10285 static int lfs_getsom(int argc, char **argv)
10286 {
10287         const char *path;
10288         struct lustre_som_attrs *attrs;
10289         char buf[sizeof(*attrs) + 64];
10290         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
10291         int rc = 0, c;
10292
10293         while ((c = getopt(argc, argv, "sbf")) != -1) {
10294                 switch (c) {
10295                 case 's':
10296                         type = LFS_SOM_SIZE;
10297                         break;
10298                 case 'b':
10299                         type = LFS_SOM_BLOCKS;
10300                         break;
10301                 case 'f':
10302                         type = LFS_SOM_FLAGS;
10303                         break;
10304                 default:
10305                         fprintf(stderr, "%s: invalid option '%c'\n",
10306                                 progname, optopt);
10307                         return CMD_HELP;
10308                 }
10309         }
10310
10311         argc -= optind;
10312         argv += optind;
10313
10314         if (argc != 1) {
10315                 fprintf(stderr, "%s: %s\n",
10316                         progname, argc == 0 ? "miss file target" :
10317                         "input more than 2 files");
10318                 return CMD_HELP;
10319         }
10320
10321         path = argv[0];
10322         attrs = (void *)buf;
10323         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
10324         if (rc < 0) {
10325                 rc = -errno;
10326                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
10327                         argv[0], strerror(errno), errno);
10328                 return rc;
10329         }
10330
10331         lustre_som_swab(attrs);
10332
10333         switch (type) {
10334         case LFS_SOM_ATTR_ALL:
10335                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
10336                        path, attrs->lsa_size, attrs->lsa_blocks,
10337                        attrs->lsa_valid);
10338                 break;
10339         case LFS_SOM_SIZE:
10340                 printf("%llu\n", attrs->lsa_size);
10341                 break;
10342         case LFS_SOM_BLOCKS:
10343                 printf("%llu\n", attrs->lsa_blocks);
10344                 break;
10345         case LFS_SOM_FLAGS:
10346                 printf("%x\n", attrs->lsa_valid);
10347                 break;
10348         default:
10349                 fprintf(stderr, "%s: unknown option\n", progname);
10350                 return CMD_HELP;
10351         }
10352
10353         return 0;
10354 }
10355
10356 /**
10357  * lfs_mirror_list_commands() - List lfs mirror commands.
10358  * @argc: The count of command line arguments.
10359  * @argv: Array of strings for command line arguments.
10360  *
10361  * This function lists lfs mirror commands defined in mirror_cmdlist[].
10362  *
10363  * Return: 0 on success.
10364  */
10365 static int lfs_mirror_list_commands(int argc, char **argv)
10366 {
10367         char buffer[81] = "";
10368
10369         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
10370                              NULL, 0, 4);
10371
10372         return 0;
10373 }
10374
10375 static int lfs_pcc_attach(int argc, char **argv)
10376 {
10377         struct option long_opts[] = {
10378         { .val = 'i',   .name = "id",   .has_arg = required_argument },
10379         { .name = NULL } };
10380         int c;
10381         int rc = 0;
10382         __u32 archive_id = 0;
10383         const char *path;
10384         char *end;
10385         char fullpath[PATH_MAX];
10386         enum lu_pcc_type type = LU_PCC_READWRITE;
10387
10388         optind = 0;
10389         while ((c = getopt_long(argc, argv, "i:",
10390                                 long_opts, NULL)) != -1) {
10391                 switch (c) {
10392                 case 'i':
10393                         archive_id = strtoul(optarg, &end, 0);
10394                         if (*end != '\0' || archive_id == 0) {
10395                                 fprintf(stderr, "error: %s: bad archive ID "
10396                                         "'%s'\n", argv[0], optarg);
10397                                 return CMD_HELP;
10398                         }
10399                         break;
10400                 case '?':
10401                         return CMD_HELP;
10402                 default:
10403                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10404                                 argv[0], argv[optind - 1]);
10405                         return CMD_HELP;
10406                 }
10407         }
10408
10409         if (argc <= optind) {
10410                 fprintf(stderr, "%s: must specify one or more file names\n",
10411                         argv[0]);
10412                 return CMD_HELP;
10413         }
10414
10415         while (optind < argc) {
10416                 int rc2;
10417
10418                 path = argv[optind++];
10419                 if (realpath(path, fullpath) == NULL) {
10420                         fprintf(stderr, "%s: could not find path '%s': %s\n",
10421                                 argv[0], path, strerror(errno));
10422                         if (rc == 0)
10423                                 rc = -EINVAL;
10424                         continue;
10425                 }
10426
10427                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
10428                 if (rc2 < 0) {
10429                         fprintf(stderr, "%s: cannot attach '%s' to PCC "
10430                                 "with archive ID '%u': %s\n", argv[0],
10431                                 path, archive_id, strerror(-rc2));
10432                         if (rc == 0)
10433                                 rc = rc2;
10434                 }
10435         }
10436         return rc;
10437 }
10438
10439 static int lfs_pcc_attach_fid(int argc, char **argv)
10440 {
10441         struct option long_opts[] = {
10442         { .val = 'i',   .name = "id",   .has_arg = required_argument },
10443         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
10444         { .name = NULL } };
10445         char                     short_opts[] = "i:m:";
10446         int                      c;
10447         int                      rc = 0;
10448         __u32                    archive_id = 0;
10449         char                    *end;
10450         const char              *mntpath = NULL;
10451         const char              *fidstr;
10452         enum lu_pcc_type         type = LU_PCC_READWRITE;
10453
10454         optind = 0;
10455         while ((c = getopt_long(argc, argv, short_opts,
10456                                 long_opts, NULL)) != -1) {
10457                 switch (c) {
10458                 case 'i':
10459                         archive_id = strtoul(optarg, &end, 0);
10460                         if (*end != '\0') {
10461                                 fprintf(stderr, "error: %s: bad archive ID "
10462                                         "'%s'\n", argv[0], optarg);
10463                                 return CMD_HELP;
10464                         }
10465                         break;
10466                 case 'm':
10467                         mntpath = optarg;
10468                         break;
10469                 case '?':
10470                         return CMD_HELP;
10471                 default:
10472                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10473                                 argv[0], argv[optind - 1]);
10474                         return CMD_HELP;
10475                 }
10476         }
10477
10478         if (archive_id == 0) {
10479                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
10480                 return CMD_HELP;
10481         }
10482
10483         if (mntpath == NULL) {
10484                 fprintf(stderr, "%s: must specify Lustre mount point\n",
10485                         argv[0]);
10486                 return CMD_HELP;
10487         }
10488
10489         if (argc <= optind) {
10490                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
10491                 return CMD_HELP;
10492         }
10493
10494         while (optind < argc) {
10495                 int rc2;
10496
10497                 fidstr = argv[optind++];
10498
10499                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
10500                                                archive_id, type);
10501                 if (rc2 < 0) {
10502                         fprintf(stderr, "%s: cannot attach '%s' on '%s' to PCC "
10503                                 "with archive ID '%u': %s\n", argv[0],
10504                                 fidstr, mntpath, archive_id, strerror(rc2));
10505                 }
10506                 if (rc == 0 && rc2 < 0)
10507                         rc = rc2;
10508         }
10509         return rc;
10510 }
10511
10512 static int lfs_pcc_detach(int argc, char **argv)
10513 {
10514         struct option long_opts[] = {
10515         { .val = 'k',   .name = "keep", .has_arg = no_argument },
10516         { .name = NULL } };
10517         char                     short_opts[] = "k";
10518         int                      c;
10519         int                      rc = 0;
10520         const char              *path;
10521         char                     fullpath[PATH_MAX];
10522         __u32                    detach_opt = PCC_DETACH_OPT_UNCACHE;
10523
10524         optind = 0;
10525         while ((c = getopt_long(argc, argv, short_opts,
10526                                 long_opts, NULL)) != -1) {
10527                 switch (c) {
10528                 case 'k':
10529                         detach_opt = PCC_DETACH_OPT_NONE;
10530                         break;
10531                 case '?':
10532                         return CMD_HELP;
10533                 default:
10534                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10535                                 argv[0], argv[optind - 1]);
10536                         return CMD_HELP;
10537                 }
10538         }
10539
10540         while (optind < argc) {
10541                 int rc2;
10542
10543                 path = argv[optind++];
10544                 if (realpath(path, fullpath) == NULL) {
10545                         fprintf(stderr, "%s: could not find path '%s': %s\n",
10546                                 argv[0], path, strerror(errno));
10547                         if (rc == 0)
10548                                 rc = -EINVAL;
10549                         continue;
10550                 }
10551
10552                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
10553                 if (rc2 < 0) {
10554                         rc2 = -errno;
10555                         fprintf(stderr, "%s: cannot detach '%s' from PCC: "
10556                                 "%s\n", argv[0], path, strerror(errno));
10557                         if (rc == 0)
10558                                 rc = rc2;
10559                 }
10560         }
10561         return rc;
10562 }
10563
10564 static int lfs_pcc_detach_fid(int argc, char **argv)
10565 {
10566         struct option long_opts[] = {
10567         { .val = 'k',   .name = "keep", .has_arg = no_argument },
10568         { .name = NULL } };
10569         char             short_opts[] = "k";
10570         int              c;
10571         int              rc = 0;
10572         const char      *fid;
10573         const char      *mntpath;
10574         __u32            detach_opt = PCC_DETACH_OPT_UNCACHE;
10575
10576         optind = 0;
10577         while ((c = getopt_long(argc, argv, short_opts,
10578                                 long_opts, NULL)) != -1) {
10579                 switch (c) {
10580                 case 'k':
10581                         detach_opt = PCC_DETACH_OPT_NONE;
10582                         break;
10583                 case '?':
10584                         return CMD_HELP;
10585                 default:
10586                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10587                                 argv[0], argv[optind - 1]);
10588                         return CMD_HELP;
10589                 }
10590         }
10591
10592         mntpath = argv[optind++];
10593
10594         while (optind < argc) {
10595                 int rc2;
10596
10597                 fid = argv[optind++];
10598
10599                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
10600                 if (rc2 < 0) {
10601                         fprintf(stderr, "%s: cannot detach '%s' on '%s' "
10602                                 "from PCC: %s\n", argv[0], fid, mntpath,
10603                                 strerror(-rc2));
10604                         if (rc == 0)
10605                                 rc = rc2;
10606                 }
10607         }
10608         return rc;
10609 }
10610
10611 static int lfs_pcc_state(int argc, char **argv)
10612 {
10613         int                      rc = 0;
10614         const char              *path;
10615         char                     fullpath[PATH_MAX];
10616         struct lu_pcc_state      state;
10617
10618         optind = 1;
10619
10620         if (argc <= 1) {
10621                 fprintf(stderr, "%s: must specify one or more file names\n",
10622                         argv[0]);
10623                 return CMD_HELP;
10624         }
10625
10626         while (optind < argc) {
10627                 int rc2;
10628
10629                 path = argv[optind++];
10630                 if (realpath(path, fullpath) == NULL) {
10631                         fprintf(stderr, "%s: could not find path '%s': %s\n",
10632                                 argv[0], path, strerror(errno));
10633                         if (rc == 0)
10634                                 rc = -EINVAL;
10635                         continue;
10636                 }
10637
10638                 rc2 = llapi_pcc_state_get(fullpath, &state);
10639                 if (rc2 < 0) {
10640                         if (rc == 0)
10641                                 rc = rc2;
10642                         fprintf(stderr, "%s: cannot get PCC state of '%s': "
10643                                 "%s\n", argv[0], path, strerror(-rc2));
10644                         continue;
10645                 }
10646
10647                 printf("file: %s", path);
10648                 printf(", type: %s", pcc_type2string(state.pccs_type));
10649                 if (state.pccs_type == LU_PCC_NONE &&
10650                     state.pccs_open_count == 0) {
10651                         printf("\n");
10652                         continue;
10653                 }
10654
10655                 printf(", PCC file: %s", state.pccs_path);
10656                 printf(", user number: %u", state.pccs_open_count);
10657                 printf(", flags: %x", state.pccs_flags);
10658                 printf("\n");
10659         }
10660         return rc;
10661 }
10662
10663 /**
10664  * lfs_pcc_list_commands() - List lfs pcc commands.
10665  * @argc: The count of command line arguments.
10666  * @argv: Array of strings for command line arguments.
10667  *
10668  * This function lists lfs pcc commands defined in pcc_cmdlist[].
10669  *
10670  * Return: 0 on success.
10671  */
10672 static int lfs_pcc_list_commands(int argc, char **argv)
10673 {
10674         char buffer[81] = "";
10675
10676         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
10677                              NULL, 0, 4);
10678
10679         return 0;
10680 }
10681
10682 /**
10683  * lfs_pcc() - Parse and execute lfs pcc commands.
10684  * @argc: The count of lfs pcc command line arguments.
10685  * @argv: Array of strings for lfs pcc command line arguments.
10686  *
10687  * This function parses lfs pcc commands and performs the
10688  * corresponding functions specified in pcc_cmdlist[].
10689  *
10690  * Return: 0 on success or an error code on failure.
10691  */
10692 static int lfs_pcc(int argc, char **argv)
10693 {
10694         char cmd[PATH_MAX];
10695         int rc = 0;
10696
10697         setlinebuf(stdout);
10698
10699         Parser_init("lfs-pcc > ", pcc_cmdlist);
10700
10701         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10702         progname = cmd;
10703         program_invocation_short_name = cmd;
10704         if (argc > 1)
10705                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
10706         else
10707                 rc = Parser_commands();
10708
10709         return rc < 0 ? -rc : rc;
10710 }
10711
10712 static int lfs_list_commands(int argc, char **argv)
10713 {
10714         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
10715
10716         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
10717
10718         return 0;
10719 }
10720
10721 int main(int argc, char **argv)
10722 {
10723         int rc;
10724
10725         /* Ensure that liblustreapi constructor has run */
10726         if (!llapi_liblustreapi_initialized())
10727                 fprintf(stderr, "liblustreapi was not properly initialized\n");
10728
10729         setlinebuf(stdout);
10730         opterr = 0;
10731
10732         Parser_init("lfs > ", cmdlist);
10733
10734         progname = program_invocation_short_name; /* Used in error messages */
10735         if (argc > 1) {
10736                 llapi_set_command_name(argv[1]);
10737                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
10738                 llapi_clear_command_name();
10739         } else {
10740                 rc = Parser_commands();
10741         }
10742
10743         return rc < 0 ? -rc : rc;
10744 }
10745
10746 #ifdef _LUSTRE_IDL_H_
10747 /* Everything we need here should be included by lustreapi.h. */
10748 # error "lfs should not depend on lustre_idl.h"
10749 #endif /* _LUSTRE_IDL_H_ */