lustre/utils/lfs.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2017, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lustre/utils/lfs.c
  33  *
  34  * Author: Peter J. Braam <braam@clusterfs.com>
  35  * Author: Phil Schwan <phil@clusterfs.com>
  36  * Author: Robert Read <rread@clusterfs.com>
  37  */
  38
  39 /* for O_DIRECTORY */
  40 #ifndef _GNU_SOURCE
  41 #define _GNU_SOURCE
  42 #endif
  43
  44 #include <stdlib.h>
  45 #include <stdio.h>
  46 #include <inttypes.h>
  47 #include <getopt.h>
  48 #include <string.h>
  49 #include <mntent.h>
  50 #include <unistd.h>
  51 #include <errno.h>
  52 #include <err.h>
  53 #include <pwd.h>
  54 #include <grp.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/quota.h>
  57 #include <sys/time.h>
  58 #include <sys/types.h>
  59 #include <sys/stat.h>
  60 #include <sys/param.h>
  61 #include <sys/xattr.h>
  62 #include <fcntl.h>
  63 #include <dirent.h>
  64 #include <time.h>
  65 #include <ctype.h>
  66 #include <zlib.h>
  67 #include <libgen.h>
  68 #include <asm/byteorder.h>
  69 #include "lfs_project.h"
  70
  71 #include <libcfs/util/string.h>
  72 #include <libcfs/util/ioctl.h>
  73 #include <libcfs/util/parser.h>
  74 #include <libcfs/util/string.h>
  75 #include <lustre/lustreapi.h>
  76 #include <linux/lustre/lustre_ver.h>
  77 #include <linux/lustre/lustre_param.h>
  78 #include <linux/lnet/nidstr.h>
  79 #include <lnetconfig/cyaml.h>
  80 #include "lstddef.h"
  81
  82 /* all functions */
  83 static int lfs_find(int argc, char **argv);
  84 static int lfs_getstripe(int argc, char **argv);
  85 static int lfs_getdirstripe(int argc, char **argv);
  86 static int lfs_setdirstripe(int argc, char **argv);
  87 static int lfs_rmentry(int argc, char **argv);
  88 static int lfs_osts(int argc, char **argv);
  89 static int lfs_mdts(int argc, char **argv);
  90 static int lfs_df(int argc, char **argv);
  91 static int lfs_getname(int argc, char **argv);
  92 static int lfs_check(int argc, char **argv);
  93 #ifdef HAVE_SYS_QUOTA_H
  94 static int lfs_setquota(int argc, char **argv);
  95 static int lfs_quota(int argc, char **argv);
  96 static int lfs_project(int argc, char **argv);
  97 #endif
  98 static int lfs_flushctx(int argc, char **argv);
  99 static int lfs_poollist(int argc, char **argv);
 100 static int lfs_changelog(int argc, char **argv);
 101 static int lfs_changelog_clear(int argc, char **argv);
 102 static int lfs_fid2path(int argc, char **argv);
 103 static int lfs_path2fid(int argc, char **argv);
 104 static int lfs_rmfid(int argc, char **argv);
 105 static int lfs_data_version(int argc, char **argv);
 106 static int lfs_hsm_state(int argc, char **argv);
 107 static int lfs_hsm_set(int argc, char **argv);
 108 static int lfs_hsm_clear(int argc, char **argv);
 109 static int lfs_hsm_action(int argc, char **argv);
 110 static int lfs_hsm_archive(int argc, char **argv);
 111 static int lfs_hsm_restore(int argc, char **argv);
 112 static int lfs_hsm_release(int argc, char **argv);
 113 static int lfs_hsm_remove(int argc, char **argv);
 114 static int lfs_hsm_cancel(int argc, char **argv);
 115 static int lfs_swap_layouts(int argc, char **argv);
 116 static int lfs_mv(int argc, char **argv);
 117 static int lfs_ladvise(int argc, char **argv);
 118 static int lfs_getsom(int argc, char **argv);
 119 static int lfs_heat_get(int argc, char **argv);
 120 static int lfs_heat_set(int argc, char **argv);
 121 static int lfs_mirror(int argc, char **argv);
 122 static int lfs_mirror_list_commands(int argc, char **argv);
 123 static int lfs_list_commands(int argc, char **argv);
 124 static inline int lfs_mirror_resync(int argc, char **argv);
 125 static inline int lfs_mirror_verify(int argc, char **argv);
 126 static inline int lfs_mirror_read(int argc, char **argv);
 127 static inline int lfs_mirror_write(int argc, char **argv);
 128 static inline int lfs_mirror_copy(int argc, char **argv);
 129 static int lfs_pcc_attach(int argc, char **argv);
 130 static int lfs_pcc_attach_fid(int argc, char **argv);
 131 static int lfs_pcc_detach(int argc, char **argv);
 132 static int lfs_pcc_detach_fid(int argc, char **argv);
 133 static int lfs_pcc_state(int argc, char **argv);
 134 static int lfs_pcc(int argc, char **argv);
 135 static int lfs_pcc_list_commands(int argc, char **argv);
 136 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
 137                               __u64 migration_flags,
 138                               struct llapi_stripe_param *param,
 139                               struct llapi_layout *layout);
 140
 141 enum setstripe_origin {
 142         SO_SETSTRIPE,
 143         SO_MIGRATE,
 144         SO_MIGRATE_MDT,
 145         SO_MIRROR_CREATE,
 146         SO_MIRROR_EXTEND,
 147         SO_MIRROR_SPLIT,
 148         SO_MIRROR_DELETE,
 149 };
 150
 151 static int lfs_setstripe_internal(int argc, char **argv,
 152                                   enum setstripe_origin opc);
 153
 154 static inline int lfs_setstripe(int argc, char **argv)
 155 {
 156         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 157 }
 158
 159 static inline int lfs_setstripe_migrate(int argc, char **argv)
 160 {
 161         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 162 }
 163
 164 static inline int lfs_mirror_create(int argc, char **argv)
 165 {
 166         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 167 }
 168
 169 static inline int lfs_mirror_extend(int argc, char **argv)
 170 {
 171         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 172 }
 173
 174 static inline int lfs_mirror_split(int argc, char **argv)
 175 {
 176         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 177 }
 178
 179 static inline int lfs_mirror_delete(int argc, char **argv)
 180 {
 181         return lfs_setstripe_internal(argc, argv, SO_MIRROR_DELETE);
 182 }
 183
 184 /* Setstripe and migrate share mostly the same parameters */
 185 #define SSM_CMD_COMMON(cmd) \
 186         "usage: "cmd" [--component-end|-E <comp_end>]\n"                \
 187         "                 [--stripe-count|-c <stripe_count>]\n"         \
 188         "                 [--overstripe-count|-C <stripe_count>]\n"     \
 189         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 190         "                 [--stripe-size|-S <stripe_size>]\n"           \
 191         "                 [--extension-size|--ext-size|-z]\n"           \
 192         "                 [--layout|-L <pattern>]\n"                    \
 193         "                 [--mirror_count|-N[mirror_count]]\n"          \
 194         "                 [--ost|-o <ost_indices>]\n"                   \
 195         "                 [--pool|-p <pool_name>]\n"                    \
 196         "                 [--yaml|-y <yaml_template_file>]\n"           \
 197         "                 [--copy=<lustre_src>]\n"
 198
 199 #define SSM_HELP_COMMON \
 200         "\tstripe_count: Number of OSTs to stripe over (0=fs default, -1 all)\n" \
 201         "\t              Using -C instead of -c allows overstriping, which\n" \
 202         "\t              will place more than one stripe per OST if\n" \
 203         "\t              stripe_count is greater than the number of OSTs\n" \
 204         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 205         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n" \
 206         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 207         "\t              respectively)\n"                               \
 208         "\textension_size:\n"                                           \
 209         "\t              Number of bytes the previous component is extended\n" \
 210         "\t              each time. Can be specified with K, M, G (for KB,\n" \
 211         "\t              MB, GB respectively)\n"                        \
 212         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 213         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"\
 214         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 215         "\t              Indices be specified in a format of:\n"        \
 216         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 217         "\t              Or:\n"                                         \
 218         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 219         "\t              If --pool is set with --ost then the OSTs\n"   \
 220         "\t              must be the members of the pool.\n"            \
 221         "\tcomp_end:     Extent end of component, start after previous end.\n"\
 222         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 223         "\t              respectively, -1 for EOF). Must be a multiple of\n"\
 224         "\t              stripe_size.\n"                                      \
 225         "\tyaml_template_file:\n"                                             \
 226         "\t              YAML layout template file, can't be used with -c,\n" \
 227         "\t              -i, -S, -p, -o, or -E arguments.\n"                  \
 228         "\tlustre_src:   Lustre file/dir whose layout info is used to set\n"  \
 229         "\t              another lustre file or directory, can't used with\n" \
 230         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 231
 232 #define MIRROR_CREATE_HELP                                                     \
 233         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 234         "\t              setstripe layout options\n"                           \
 235         "\t              It defaults to 1 if not specified; if specified,\n"   \
 236         "\t              it must follow the option without a space.\n"         \
 237         "\t              The option can also be repeated multiple times to\n"  \
 238         "\t              separate mirrors that have different layouts.\n"      \
 239         "\tSETSTRIPE_OPTIONS: Mirror layout as with 'setstripe'\n"             \
 240         "\t              It can be a plain layout or a composite layout.\n"    \
 241         "\t              If not specified, the stripe options inherited\n"     \
 242         "\t              from the previous component will be used.\n"          \
 243         "\tflags:        set flags to the component of the current mirror.\n"  \
 244         "\t              Only \"prefer\" flag is supported so far.\n"
 245
 246 #define MIRROR_EXTEND_HELP                                                     \
 247         MIRROR_CREATE_HELP                                                     \
 248         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 249         "\t              as a mirror added to the mirrored file.\n"            \
 250         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 251         "\t              from victim file(s) in case the victim file(s)\n"     \
 252         "\t              contains the same data as the original mirrored\n"    \
 253         "\t              file.\n"
 254
 255 #define MIRROR_EXTEND_USAGE                                                    \
 256         "                 {--mirror-count|-N[mirror_count]}\n"                 \
 257         "                 [SETSTRIPE_OPTIONS|-f|--file <victim_file>]\n"       \
 258         "                 [--no-verify]\n"
 259
 260 #define SETSTRIPE_USAGE                                                 \
 261         SSM_CMD_COMMON("setstripe")                                     \
 262         MIRROR_EXTEND_USAGE                                             \
 263         "                 <directory|filename>\n"                       \
 264         SSM_HELP_COMMON                                                 \
 265         MIRROR_EXTEND_HELP
 266
 267 #define MIGRATE_USAGE                                                   \
 268         SSM_CMD_COMMON("migrate  ")                                     \
 269         "                 [--block|-b] [--non-block|-n]\n"              \
 270         "                 [--non-direct|-D] [--verbose|-v]\n"           \
 271         "                 <filename>\n"                                 \
 272         SSM_HELP_COMMON                                                 \
 273         "\n"                                                            \
 274         "\tblock:        Block file access during data migration (default)\n" \
 275         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 276         "\tnon-direct:   Do not use direct I/O to copy file contents\n" \
 277         "\tverbose:      Print each filename as it is migrated\n"       \
 278
 279 #define SETDIRSTRIPE_USAGE                                              \
 280         "               [--mdt-count|-c stripe_count>\n"                \
 281         "               [--mdt-hash|-H mdt_hash]\n"                     \
 282         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 283         "               [--default|-D] [--mode|-o mode] <dir>\n"        \
 284         "\tstripe_count: stripe count of the striped directory\n"       \
 285         "\tmdt_index: MDT index of first stripe\n"                      \
 286         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 287         "       crush     CRUSH hash algorithm (default)\n" \
 288         "       fnv_1a_64 FNV-1a hash algorithm\n"              \
 289         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 290         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 291         "\tmode: the file access permission of the directory (octal)\n" \
 292         "To create dir with a foreign (free format) layout :\n" \
 293         "setdirstripe|mkdir --foreign[=<foreign_type>] -x|-xattr <string> " \
 294                 "[--mode|-o mode] [--flags <hex>] <dir>\n" \
 295         "\tmode: the mode of the directory\n" \
 296         "\tforeign_type: none or daos\n"
 297
 298 /**
 299  * command_t mirror_cmdlist - lfs mirror commands.
 300  */
 301 command_t mirror_cmdlist[] = {
 302         { .pc_name = "create", .pc_func = lfs_mirror_create,
 303           .pc_help = "Create a mirrored file.\n"
 304                 "usage: lfs mirror create "
 305                 "<--mirror-count|-N[mirror_count]> "
 306                 "[SETSTRIPE_OPTIONS] ... <filename|directory> ...\n"
 307           MIRROR_CREATE_HELP },
 308         { .pc_name = "delete", .pc_func = lfs_mirror_delete,
 309           .pc_help = "Delete a mirror from a file.\n"
 310         "usage: lfs mirror delete {--mirror-id <mirror_id> |\n"
 311         "\t               --component-id|--comp-id|-I <comp_id> |\n"
 312         "\t               -p <pool>} <mirrored_file> ...\n"
 313         },
 314         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 315           .pc_help = "Extend a mirrored file.\n"
 316                 "usage: lfs mirror extend "
 317                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 318                 "[SETSTRIPE_OPTIONS|-f <victim_file>] ... <filename> ...\n"
 319           MIRROR_EXTEND_HELP },
 320         { .pc_name = "split", .pc_func = lfs_mirror_split,
 321           .pc_help = "Split a mirrored file.\n"
 322         "usage: lfs mirror split <--mirror-id <mirror_id> |\n"
 323         "\t             --component-id|-I <comp_id>|-p <pool>> [--destroy|-d]\n"
 324         "\t             [-f <new_file>] <mirrored_file> ...\n"
 325         "\tmirror_id:   The numerical unique identifier for a mirror. It\n"
 326         "\t             can be fetched by lfs getstripe command.\n"
 327         "\tcomp_id:     Unique component ID within a mirror.\n"
 328         "\tpool:        Components on specified pool.\n"
 329         "\tnew_file:    This option indicates the layout of the split\n"
 330         "\t             mirror will be stored into. If not specified,\n"
 331         "\t             a new file named <mirrored_file>.mirror~<mirror_id>\n"
 332         "\t             will be used.\n" },
 333         { .pc_name = "read", .pc_func = lfs_mirror_read,
 334           .pc_help = "Read the content of a specified mirror of a file.\n"
 335                 "usage: lfs mirror read <--mirror-id|-N <mirror_id> "
 336                 "[--outfile|-o <output_file>] <mirrored_file>\n" },
 337         { .pc_name = "write", .pc_func = lfs_mirror_write,
 338           .pc_help = "Write to a specified mirror of a file.\n"
 339                 "usage: lfs mirror write <--mirror-id|-N <mirror_id> "
 340                 "[--inputfile|-i <input_file>] <mirrored_file>\n" },
 341         { .pc_name = "copy", .pc_func = lfs_mirror_copy,
 342           .pc_help = "Copy a specified mirror to other mirror(s) of a file.\n"
 343                 "usage: lfs mirror copy <--read-mirror|-i <id0>> "
 344                 "<--write-mirror|-o <id1,id2>> <mirrored_file>\n" },
 345         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 346           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 347                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 348                 "<mirrored file> [<mirrored file2>...]\n"},
 349         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 350           .pc_help = "Verify mirrored file(s).\n"
 351                 "usage: lfs mirror verify "
 352                 "[--only <mirror_id,mirror_id2[,...]>] "
 353                 "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
 354         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 355           .pc_help = "list commands supported by lfs mirror"},
 356         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 357         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 358         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 359         { .pc_help = NULL }
 360 };
 361
 362 /**
 363  * command_t pcc_cmdlist - lfs pcc commands.
 364  */
 365 command_t pcc_cmdlist[] = {
 366         { .pc_name = "attach", .pc_func = lfs_pcc_attach,
 367           .pc_help = "Attach given files to the Persistent Client Cache.\n"
 368                 "usage: lfs pcc attach <--id|-i NUM> <file> ...\n"
 369                 "\t-i: archive id for RW-PCC\n" },
 370         { .pc_name = "attach_fid", .pc_func = lfs_pcc_attach_fid,
 371           .pc_help = "Attach given files into PCC by FID(s).\n"
 372                 "usage: lfs pcc attach_id <--id|-i NUM> <--mnt|-m mnt> "
 373                 "<fid> ...\n"
 374                 "\t-i: archive id for RW-PCC\n"
 375                 "\t-m: Lustre mount point\n" },
 376         { .pc_name = "state", .pc_func = lfs_pcc_state,
 377           .pc_help = "Display the PCC state for given files.\n"
 378                 "usage: lfs pcc state <file> ...\n" },
 379         { .pc_name = "detach", .pc_func = lfs_pcc_detach,
 380           .pc_help = "Detach given files from the Persistent Client Cache.\n"
 381                 "usage: lfs pcc detach <file> ...\n" },
 382         { .pc_name = "detach_fid", .pc_func = lfs_pcc_detach_fid,
 383           .pc_help = "Detach given files from PCC by FID(s).\n"
 384                 "usage: lfs pcc detach_fid <mntpath> <fid>...\n" },
 385         { .pc_name = "list-commands", .pc_func = lfs_pcc_list_commands,
 386           .pc_help = "list commands supported by lfs pcc"},
 387         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 388         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 389         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 390         { .pc_help = NULL }
 391 };
 392
 393 /* all available commands */
 394 command_t cmdlist[] = {
 395         {"setstripe", lfs_setstripe, 0,
 396          "To create a file with specified striping/composite layout, or\n"
 397          "create/replace the default layout on an existing directory:\n"
 398          SSM_CMD_COMMON("setstripe")
 399          "                 [--mode <mode>]\n"
 400          "                 <directory|filename>\n"
 401          " or\n"
 402          "To add component(s) to an existing composite file:\n"
 403          SSM_CMD_COMMON("setstripe --component-add")
 404          SSM_HELP_COMMON
 405          "To totally delete the default striping from an existing directory:\n"
 406          "usage: setstripe [--delete|-d] <directory>\n"
 407          " or\n"
 408          "To create a mirrored file or set s default mirror layout on a directory:\n"
 409          "usage: setstripe {--mirror-count|-N}[mirror_count] [SETSTRIPE_OPTIONS] <directory|filename>\n"
 410          " or\n"
 411          "To delete the last component(s) from an existing composite file\n"
 412          "(note that this will also delete any data in those components):\n"
 413          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 414          "                               [--component-flags|-F <comp_flags>]\n"
 415          "                               <filename>\n"
 416          "\tcomp_id:     Unique component ID to delete\n"
 417          "\tcomp_flags:  'init' indicating all instantiated components\n"
 418          "\t             '^init' indicating all uninstantiated components\n"
 419          "\t-I and -F cannot be specified at the same time\n"
 420          "To create a file with a foreign (free format) layout:\n"
 421          "usage: setstripe --foreign[=<foreign_type>]\n"
 422          "                 --xattr|-x <layout_string> [--flags <hex>]\n"
 423          "                 [--mode <mode>] <filename>\n"},
 424         {"getstripe", lfs_getstripe, 0,
 425          "To list the layout pattern for a given file or files in a\n"
 426          "directory or recursively for all files in a directory tree.\n"
 427          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 428          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 429          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 430          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 431          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 432          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 433          "                 [--component-flags[=comp_flags]]\n"
 434          "                 [--component-count]\n"
 435          "                 [--extension-size|--ext-size|-z]\n"
 436          "                 [--component-start[=[+-]comp_start]]\n"
 437          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 438          "                 [[!] --mirror-index=[+-]<index> |\n"
 439          "                  [!] --mirror-id=[+-]<id>]\n"
 440          "                 <directory|filename> ..."},
 441         {"setdirstripe", lfs_setdirstripe, 0,
 442          "Create striped directory on specified MDT, same as mkdir.\n"
 443          "May be restricted to root or group users, depending on settings.\n"
 444          "usage: setdirstripe [OPTION] <directory>\n"
 445          SETDIRSTRIPE_USAGE},
 446         {"getdirstripe", lfs_getdirstripe, 0,
 447          "To list the layout pattern info for a given directory\n"
 448          "or recursively for all directories in a directory tree.\n"
 449          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 450          "                    [--mdt-hash|-H] [--obd|-O <uuid>]\n"
 451          "                    [--recursive|-r] [--yaml|-y]\n"
 452          "                    [--verbose|-v] [--default|-D] <dir> ..."},
 453         {"mkdir", lfs_setdirstripe, 0,
 454          "Create striped directory on specified MDT, same as setdirstripe.\n"
 455          "usage: mkdir [OPTION] <directory>\n"
 456          SETDIRSTRIPE_USAGE},
 457         {"rm_entry", lfs_rmentry, 0,
 458          "To remove the name entry of the remote directory. Note: This\n"
 459          "command will only delete the name entry, i.e. the remote directory\n"
 460          "will become inaccessable after this command. This can only be done\n"
 461          "by the administrator\n"
 462          "usage: rm_entry <dir>\n"},
 463         {"pool_list", lfs_poollist, 0,
 464          "List pools or pool OSTs\n"
 465          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 466         {"find", lfs_find, 0,
 467          "find files matching given attributes recursively in directory tree.\n"
 468          "usage: find <directory|filename> ...\n"
 469          "     [[!] --atime|-A [+-]N[smhdwy]] [[!] --ctime|-C [+-]N[smhdwy]]\n"
 470          "     [[!] --mtime|-M [+-]N[smhdwy]]\n"
 471          "     [[!] --btime|--Btime|-B [+-]N[smhdwy]]\n"
 472          "     [[!] --newer[XY] <reference>] [[!] --blocks|-b N]\n"
 473          "     [--maxdepth|-D N] [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 474          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 475          "     [--print|-P] [--print0|-0] [[!] --size|-s [+-]N[bkMGTPE]]\n"
 476          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 477          "     [[!] --stripe-index|-i <index,...>]\n"
 478          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 479          "     [[!] --extension-size|--ext-size|-z [+-]N[kMGT]]\n"
 480          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 481          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 482          "     [[!] --projid <projid>]\n"
 483          "     [[!] --foreign[=<foreign_type>]]\n"
 484          "     [[!] --layout|-L released,raid0,mdt]\n"
 485          "     [[!] --foreign[=<foreign_type>]]\n"
 486          "     [[!] --component-count [+-]<comp_cnt>]\n"
 487          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 488          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 489          "     [[!] --component-flags {init,stale,prefer,offline,nosync,extension}]\n"
 490          "     [[!] --mirror-count|-N [+-]<n>]\n"
 491          "     [[!] --mirror-state <[^]state>]\n"
 492          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 493          "     [[!] --mdt-hash|-H <hashtype>\n"
 494          "     [[!] --mdt-index|-m <uuid|index,...>]\n"
 495          "\t !: used before an option indicates 'NOT' requested attribute\n"
 496          "\t -: used before a value indicates less than requested value\n"
 497          "\t +: used before a value indicates more than requested value\n"
 498          "\thashtype:   hash type of the striped directory.\n"
 499          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 500          "\t            all_char  sum of characters % MDT_COUNT\n"},
 501         {"check", lfs_check, 0,
 502          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 503          "or all the servers (MGTs, MDTs and OSTs).\n"
 504          "usage: check <mgts|osts|mdts|all>"},
 505         {"osts", lfs_osts, 0, "list OSTs connected to client "
 506          "[for specified path only]\n" "usage: osts [path]"},
 507         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 508          "[for specified path only]\n" "usage: mdts [path]"},
 509         {"df", lfs_df, 0,
 510          "report filesystem disk space usage or inodes usage "
 511          "of each MDS and all OSDs or a batch belonging to a specific pool.\n"
 512          "Usage: df [--inodes|-i] [--human-readable|-h] [--lazy|-l]\n"
 513          "          [--pool|-p <fsname>[.<pool>]] [path]"},
 514         {"getname", lfs_getname, 0,
 515          "list instances and specified mount points [for specified path only]\n"
 516          "Usage: getname [--help|-h] [--instance|-i] [--fsname|-n] [path ...]"},
 517 #ifdef HAVE_SYS_QUOTA_H
 518         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 519          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 520          "                -b <block-softlimit> -B <block-hardlimit>\n"
 521          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 522          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 523          "                [--block-softlimit <block-softlimit>]\n"
 524          "                [--block-hardlimit <block-hardlimit>]\n"
 525          "                [--inode-softlimit <inode-softlimit>]\n"
 526          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 527          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 528          "                [--block-grace 'notify'|<block-grace>]\n"
 529          "                [--inode-grace 'notify'|<inode-grace>] <filesystem>\n"
 530          "       setquota <-U|-G|-P>\n"
 531          "                -b <block-softlimit> -B <block-hardlimit>\n"
 532          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 533          "       setquota <-U|--default-usr|-G|--default-grp|-P|--default-prj>\n"
 534          "                [--block-softlimit <block-softlimit>]\n"
 535          "                [--block-hardlimit <block-hardlimit>]\n"
 536          "                [--inode-softlimit <inode-softlimit>]\n"
 537          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 538          "       setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 539          "                <-d|--default>\n"
 540          "       -b can be used instead of --block-softlimit/--block-grace\n"
 541          "       -B can be used instead of --block-hardlimit\n"
 542          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 543          "       -I can be used instead of --inode-hardlimit\n"
 544          "       -d can be used instead of --default\n\n"
 545          "Note: The total quota space will be split into many qunits and\n"
 546          "      balanced over all server targets, the minimal qunit size is\n"
 547          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 548          "      The maximum quota grace time is 2^48 - 1 seconds.\n\n"
 549          "      Quota space rebalancing process will stop when this mininum\n"
 550          "      value is reached. As a result, quota exceeded can be returned\n"
 551          "      while many targets still have 1MB or 1K inodes of spare\n"
 552          "      quota space.\n\n"
 553          "      When setting the grace time, 'notify' can be used as grace to\n"
 554          "      be notified after the quota is over soft limit but prevents\n"
 555          "      the soft limit from becoming the hard limit."},
 556         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 557          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 558                        "<ost_idx>]\n"
 559          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 560          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>\n"
 561         "        quota [-q] [-v] [h] <-U|-G|-P> <filesystem>"},
 562         {"project", lfs_project, 0,
 563          "Change or list project attribute for specified file or directory.\n"
 564          "usage: project [-d|-r] <file|directory...>\n"
 565          "         list project ID and flags on file(s) or directories\n"
 566          "       project [-p id] [-s] [-r] <file|directory...>\n"
 567          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 568          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 569          "         check project ID and flags on file(s) or directories, print outliers\n"
 570          "       project -C [-r] [-k] <file|directory...>\n"
 571          "         clear the project inherit flag and ID on the file or directory\n"
 572         },
 573 #endif
 574         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 575          "usage: flushctx [-k] [mountpoint...]"},
 576         {"changelog", lfs_changelog, 0,
 577          "Show the metadata changes on an MDT."
 578          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 579         {"changelog_clear", lfs_changelog_clear, 0,
 580          "Indicate that old changelog records up to <endrec> are no longer of "
 581          "interest to consumer <id>, allowing the system to free up space.\n"
 582          "An <endrec> of 0 means all records.\n"
 583          "usage: changelog_clear <mdtname> <id> <endrec>"},
 584         {"fid2path", lfs_fid2path, 0,
 585          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 586          "specify link number <linkno>.\n"
 587          "usage: fid2path [-c] [--link|-l <linkno>] <fsname|root> <fid> ..."},
 588         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 589          "usage: path2fid [--parents] <path> ..."},
 590         {"rmfid", lfs_rmfid, 0, "Remove file(s) by FID(s)\n"
 591          "usage: rmfid <fsname|rootpath> <fid> ..."},
 592         {"data_version", lfs_data_version, 0, "Display file data version for "
 593          "a given path.\n" "usage: data_version [-n|-r|-w] <path>"},
 594         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 595          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 596         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 597          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 598          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 599         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 600          "files.\n"
 601          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 602          "[--archived] [--lost] <file> ..."},
 603         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 604          "given files.\n" "usage: hsm_action <file> ..."},
 605         {"hsm_archive", lfs_hsm_archive, 0,
 606          "Archive file to external storage.\n"
 607          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 608          "<file> ..."},
 609         {"hsm_restore", lfs_hsm_restore, 0,
 610          "Restore file from external storage.\n"
 611          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 612         {"hsm_release", lfs_hsm_release, 0,
 613          "Release files from Lustre.\n"
 614          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 615         {"hsm_remove", lfs_hsm_remove, 0,
 616          "Remove file copy from external storage.\n"
 617          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 618          "[--archive NUM]\n"
 619          "                  (FILE [FILE ...] | "
 620          "--mntpath MOUNTPATH FID [FID ...])\n"
 621          "\n"
 622          "Note: To remove an archived copy of a file already deleted from a "
 623          "Lustre FS, the\n"
 624          "--mntpath option and a list of FIDs must be specified"
 625         },
 626         {"hsm_cancel", lfs_hsm_cancel, 0,
 627          "Cancel requests related to specified files.\n"
 628          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 629         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 630          "usage: swap_layouts <path1> <path2>"},
 631         {"migrate", lfs_setstripe_migrate, 0,
 632          "migrate a directory between MDTs.\n"
 633          "usage: migrate [--mdt-count|-c] <stripe_count>\n"
 634          "               [--mdt-hash|-H] <hash_type>\n"
 635          "               [--mdt-index|-m] <start_mdt_index>\n"
 636          "               [--verbose|-v]\n"
 637          "               <directory>\n"
 638          "\tmdt:        MDTs to stripe over, if only one MDT is specified\n"
 639          "                      it's the MDT index of first stripe\n"
 640          "\tmdt_count:  number of MDTs to stripe a directory over\n"
 641          "\tmdt_hash:   hash type of the striped directory. mdt types:\n"
 642          "              all_char  (type 1)sum of characters % MDT_COUNT\n"
 643          "              fnv_1a_64 (type 2)FNV-1a hash algorithm (default)\n"
 644          "              crush     (type 3)CRUSH hash algorithm\n"
 645          "\n"
 646          "migrate file objects from one OST "
 647          "layout\nto another (may be not safe with concurent writes).\n"
 648          "usage: migrate  "
 649          "[--stripe-count|-c] <stripe_count>\n"
 650          "[--overstripe-count|-C] <stripe_count>\n"
 651          "              [--stripe-index|-i] <start_ost_index>\n"
 652          "              [--stripe-size|-S] <stripe_size>\n"
 653          "              [--pool|-p] <pool_name>\n"
 654          "              [--ost|-o] <ost_indices>\n"
 655          "              [--block|-b]\n"
 656          "              [--non-block|-n]\n"
 657          "              [--non-direct|-D]\n"
 658          "              <file|directory>\n"
 659          "\tstripe_count:     number of OSTs to stripe a file over\n"
 660          "\t              Using -C instead of -c allows overstriping, which\n"
 661          "\t              will place more than one stripe per OST if\n"
 662          "\t              stripe_count is greater than the number of OSTs\n"
 663          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 664          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 665          "\tpool_name:        name of the predefined pool of OSTs\n"
 666          "\tost_indices:      OSTs to stripe over, in order\n"
 667          "\tblock:        Block file access during data migration (default)\n"
 668          "\tnon-block:    Abort migrations if concurrent access is detected\n"
 669          "\tnon-direct:       do not use direct I/O to copy file contents.\n"},
 670         {"mv", lfs_mv, 0,
 671          "To move directories between MDTs. This command is deprecated, "
 672          "use \"migrate\" instead.\n"
 673          "usage: mv <directory|filename> [--mdt-index|-m] <mdt_index> "
 674          "[--verbose|-v]\n"},
 675         {"ladvise", lfs_ladvise, 0,
 676          "Provide servers with advice about access patterns for a file.\n"
 677          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 678          "               [--background|-b] [--unset|-u]\n\n"
 679          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 680          "               {[--mode|-m [READ,WRITE]}\n"
 681          "               <file> ...\n"},
 682         {"mirror", lfs_mirror, mirror_cmdlist,
 683          "lfs commands used to manage files with mirrored components:\n"
 684          "lfs mirror create - create a mirrored file or directory\n"
 685          "lfs mirror extend - add mirror(s) to an existing file\n"
 686          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 687          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 688          "lfs mirror read   - read a mirror content of a mirrored file\n"
 689          "lfs mirror write  - write to a mirror of a mirrored file\n"
 690          "lfs mirror copy   - copy a mirror to other mirror(s) of a file\n"
 691          "lfs mirror verify - verify mirrored file(s)\n"},
 692         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 693          "usage: getsom [-s] [-b] [-f] <path>\n"
 694          "\t-s: Only show the size value of the SOM data for a given file\n"
 695          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 696          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 697         {"heat_get", lfs_heat_get, 0,
 698          "To get heat of files.\n"
 699          "usage: heat_get <file> ...\n"},
 700         {"heat_set", lfs_heat_set, 0,
 701          "To set heat flags of files.\n"
 702          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 703          "\t--clear|-c: Clear file heat for given files\n"
 704          "\t--off|-o:   Turn off file heat for given files\n"
 705          "\t--on|-O:    Turn on file heat for given files\n"},
 706         {"pcc", lfs_pcc, pcc_cmdlist,
 707          "lfs commands used to interact with PCC features:\n"
 708          "lfs pcc attach - attach given files to Persistent Client Cache\n"
 709          "lfs pcc attach_fid - attach given files into PCC by FID(s)\n"
 710          "lfs pcc state  - display the PCC state for given files\n"
 711          "lfs pcc detach - detach given files from Persistent Client Cache\n"
 712          "lfs pcc detach_fid - detach given files from PCC by FID(s)\n"},
 713         {"help", Parser_help, 0, "help"},
 714         {"exit", Parser_quit, 0, "quit"},
 715         {"quit", Parser_quit, 0, "quit"},
 716         {"--version", Parser_version, 0,
 717          "output build version of the utility and exit"},
 718         {"--list-commands", lfs_list_commands, 0,
 719          "list commands supported by the utility and exit"},
 720         { 0, 0, 0, NULL }
 721 };
 722
 723 static int check_hashtype(const char *hashtype)
 724 {
 725         int type_num = atoi(hashtype);
 726         int i;
 727
 728         /* numeric hash type */
 729         if (hashtype && strlen(hashtype) == 1 &&
 730             (type_num > 0 && type_num < LMV_HASH_TYPE_MAX))
 731                 return type_num;
 732         /* string hash type */
 733         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 734                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 735                         return i;
 736
 737         return 0;
 738 }
 739
 740 static uint32_t check_foreign_type_name(const char *foreign_type_name)
 741 {
 742         uint32_t i;
 743
 744         for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
 745                 if (!lu_foreign_types[i].lft_name)
 746                         break;
 747                 if (strcmp(foreign_type_name,
 748                            lu_foreign_types[i].lft_name) == 0)
 749                         return lu_foreign_types[i].lft_type;
 750         }
 751
 752         return LU_FOREIGN_TYPE_UNKNOWN;
 753 }
 754
 755 static const char *error_loc = "syserror";
 756
 757 enum {
 758         MIGRATION_NONBLOCK      = 0x0001,
 759         MIGRATION_MIRROR        = 0x0002,
 760         MIGRATION_NONDIRECT     = 0x0004,
 761         MIGRATION_VERBOSE       = 0x0008,
 762 };
 763
 764 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 765                                 struct llapi_layout *layout);
 766
 767 static int
 768 migrate_open_files(const char *name, __u64 migration_flags,
 769                    const struct llapi_stripe_param *param,
 770                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 771 {
 772         int                      fd = -1;
 773         int                      fdv = -1;
 774         int                      rflags;
 775         int                      mdt_index;
 776         int                      random_value;
 777         char                     parent[PATH_MAX];
 778         char                     volatile_file[PATH_MAX];
 779         char                    *ptr;
 780         int                      rc;
 781         struct stat              st;
 782         struct stat              stv;
 783
 784         if (!param && !layout) {
 785                 error_loc = "layout information";
 786                 return -EINVAL;
 787         }
 788
 789         /* search for file directory pathname */
 790         if (strlen(name) > sizeof(parent) - 1) {
 791                 error_loc = "source file name";
 792                 return -ERANGE;
 793         }
 794
 795         strncpy(parent, name, sizeof(parent));
 796         ptr = strrchr(parent, '/');
 797         if (!ptr) {
 798                 if (!getcwd(parent, sizeof(parent))) {
 799                         error_loc = "getcwd";
 800                         return -errno;
 801                 }
 802         } else {
 803                 if (ptr == parent) /* leading '/' */
 804                         ptr = parent + 1;
 805                 *ptr = '\0';
 806         }
 807
 808         /* open file, direct io */
 809         /* even if the file is only read, WR mode is nedeed to allow
 810          * layout swap on fd
 811          */
 812         rflags = O_RDWR;
 813         if (!(migration_flags & MIGRATION_NONDIRECT))
 814                 rflags |= O_DIRECT;
 815         fd = open(name, rflags);
 816         if (fd < 0) {
 817                 rc = -errno;
 818                 error_loc = "cannot open source file";
 819                 return rc;
 820         }
 821
 822         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 823         if (rc < 0) {
 824                 error_loc = "cannot get MDT index";
 825                 goto out;
 826         }
 827
 828         do {
 829                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 830                 mode_t open_mode = S_IRUSR | S_IWUSR;
 831
 832                 random_value = random();
 833                 rc = snprintf(volatile_file, sizeof(volatile_file),
 834                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 835                               mdt_index, random_value);
 836                 if (rc >= sizeof(volatile_file)) {
 837                         rc = -ENAMETOOLONG;
 838                         break;
 839                 }
 840
 841                 /* create, open a volatile file, use caching (ie no directio) */
 842                 if (layout)
 843                         fdv = lfs_component_create(volatile_file, open_flags,
 844                                                    open_mode, layout);
 845                 else
 846                         fdv = llapi_file_open_param(volatile_file, open_flags,
 847                                                     open_mode, param);
 848         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 849
 850         if (rc < 0) {
 851                 error_loc = "cannot create volatile file";
 852                 goto out;
 853         }
 854
 855         /*
 856          * In case the MDT does not support creation of volatile files
 857          * we should try to unlink it.
 858          */
 859         (void)unlink(volatile_file);
 860
 861         /*
 862          * Not-owner (root?) special case.
 863          * Need to set owner/group of volatile file like original.
 864          * This will allow to pass related check during layout_swap.
 865          */
 866         rc = fstat(fd, &st);
 867         if (rc != 0) {
 868                 rc = -errno;
 869                 error_loc = "cannot stat source file";
 870                 goto out;
 871         }
 872
 873         rc = fstat(fdv, &stv);
 874         if (rc != 0) {
 875                 rc = -errno;
 876                 error_loc = "cannot stat volatile";
 877                 goto out;
 878         }
 879
 880         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 881                 rc = fchown(fdv, st.st_uid, st.st_gid);
 882                 if (rc != 0) {
 883                         rc = -errno;
 884                         error_loc = "cannot change ownwership of volatile";
 885                         goto out;
 886                 }
 887         }
 888
 889 out:
 890         if (rc < 0) {
 891                 if (fd > 0)
 892                         close(fd);
 893                 if (fdv > 0)
 894                         close(fdv);
 895         } else {
 896                 *fd_src = fd;
 897                 *fd_tgt = fdv;
 898                 error_loc = NULL;
 899         }
 900         return rc;
 901 }
 902
 903 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 904 {
 905         struct llapi_layout *layout;
 906         size_t   buf_size = 4 * 1024 * 1024;
 907         void    *buf = NULL;
 908         ssize_t  rsize = -1;
 909         ssize_t  wsize = 0;
 910         size_t   rpos = 0;
 911         size_t   wpos = 0;
 912         off_t    bufoff = 0;
 913         int      rc;
 914
 915         layout = llapi_layout_get_by_fd(fd_src, 0);
 916         if (layout) {
 917                 uint64_t stripe_size;
 918
 919                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 920                 if (rc == 0)
 921                         buf_size = stripe_size;
 922
 923                 llapi_layout_free(layout);
 924         }
 925
 926         /* Use a page-aligned buffer for direct I/O */
 927         rc = posix_memalign(&buf, getpagesize(), buf_size);
 928         if (rc != 0)
 929                 return -rc;
 930
 931         while (1) {
 932                 /*
 933                  * read new data only if we have written all
 934                  * previously read data
 935                  */
 936                 if (wpos == rpos) {
 937                         if (check_file) {
 938                                 rc = check_file(fd_src);
 939                                 if (rc < 0)
 940                                         break;
 941                         }
 942
 943                         rsize = read(fd_src, buf, buf_size);
 944                         if (rsize < 0) {
 945                                 rc = -errno;
 946                                 break;
 947                         }
 948                         rpos += rsize;
 949                         bufoff = 0;
 950                 }
 951                 /* eof ? */
 952                 if (rsize == 0)
 953                         break;
 954
 955                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 956                 if (wsize < 0) {
 957                         rc = -errno;
 958                         break;
 959                 }
 960                 wpos += wsize;
 961                 bufoff += wsize;
 962         }
 963
 964         if (rc == 0) {
 965                 rc = fsync(fd_dst);
 966                 if (rc < 0)
 967                         rc = -errno;
 968         }
 969
 970         free(buf);
 971         return rc;
 972 }
 973
 974 static int migrate_copy_timestamps(int fd, int fdv)
 975 {
 976         struct stat st;
 977
 978         if (fstat(fd, &st) == 0) {
 979                 struct timeval tv[2] = {
 980                         {.tv_sec = st.st_atime},
 981                         {.tv_sec = st.st_mtime}
 982                 };
 983
 984                 return futimes(fdv, tv);
 985         }
 986
 987         return -errno;
 988 }
 989
 990 static int migrate_block(int fd, int fdv)
 991 {
 992         __u64   dv1;
 993         int     gid;
 994         int     rc;
 995         int     rc2;
 996
 997         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 998         if (rc < 0) {
 999                 error_loc = "cannot get dataversion";
1000                 return rc;
1001         }
1002
1003         do
1004                 gid = random();
1005         while (gid == 0);
1006
1007         /*
1008          * The grouplock blocks all concurrent accesses to the file.
1009          * It has to be taken after llapi_get_data_version as it would
1010          * block it too.
1011          */
1012         rc = llapi_group_lock(fd, gid);
1013         if (rc < 0) {
1014                 error_loc = "cannot get group lock";
1015                 return rc;
1016         }
1017
1018         rc = migrate_copy_data(fd, fdv, NULL);
1019         if (rc < 0) {
1020                 error_loc = "data copy failed";
1021                 goto out_unlock;
1022         }
1023
1024         /* Make sure we keep original atime/mtime values */
1025         rc = migrate_copy_timestamps(fd, fdv);
1026         if (rc < 0) {
1027                 error_loc = "timestamp copy failed";
1028                 goto out_unlock;
1029         }
1030
1031         /*
1032          * swap layouts
1033          * for a migration we need to check data version on file did
1034          * not change.
1035          *
1036          * Pass in gid=0 since we already own grouplock.
1037          */
1038         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
1039                                            SWAP_LAYOUTS_CHECK_DV1);
1040         if (rc == -EAGAIN) {
1041                 error_loc = "file changed";
1042                 goto out_unlock;
1043         } else if (rc < 0) {
1044                 error_loc = "cannot swap layout";
1045                 goto out_unlock;
1046         }
1047
1048 out_unlock:
1049         rc2 = llapi_group_unlock(fd, gid);
1050         if (rc2 < 0 && rc == 0) {
1051                 error_loc = "unlock group lock";
1052                 rc = rc2;
1053         }
1054
1055         return rc;
1056 }
1057
1058 /**
1059  * Internal helper for migrate_copy_data(). Check lease and report error if
1060  * need be.
1061  *
1062  * \param[in]  fd           File descriptor on which to check the lease.
1063  *
1064  * \retval 0       Migration can keep on going.
1065  * \retval -errno  Error occurred, abort migration.
1066  */
1067 static int check_lease(int fd)
1068 {
1069         int rc;
1070
1071         rc = llapi_lease_check(fd);
1072         if (rc > 0)
1073                 return 0; /* llapi_check_lease returns > 0 on success. */
1074
1075         return -EBUSY;
1076 }
1077
1078 static int migrate_nonblock(int fd, int fdv)
1079 {
1080         __u64   dv1;
1081         __u64   dv2;
1082         int     rc;
1083
1084         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1085         if (rc < 0) {
1086                 error_loc = "cannot get data version";
1087                 return rc;
1088         }
1089
1090         rc = migrate_copy_data(fd, fdv, check_lease);
1091         if (rc < 0) {
1092                 error_loc = "data copy failed";
1093                 return rc;
1094         }
1095
1096         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
1097         if (rc != 0) {
1098                 error_loc = "cannot get data version";
1099                 return rc;
1100         }
1101
1102         if (dv1 != dv2) {
1103                 rc = -EAGAIN;
1104                 error_loc = "source file changed";
1105                 return rc;
1106         }
1107
1108         /* Make sure we keep original atime/mtime values */
1109         rc = migrate_copy_timestamps(fd, fdv);
1110         if (rc < 0) {
1111                 error_loc = "timestamp copy failed";
1112                 return rc;
1113         }
1114
1115         return 0;
1116 }
1117
1118 static int lfs_component_set(char *fname, int comp_id,
1119                              __u32 flags, __u32 neg_flags)
1120 {
1121         __u32 ids[2];
1122         __u32 flags_array[2];
1123         size_t count = 0;
1124         int rc;
1125
1126         if (flags) {
1127                 ids[count] = comp_id;
1128                 flags_array[count] = flags;
1129                 ++count;
1130         }
1131
1132         if (neg_flags) {
1133                 if (neg_flags & LCME_FL_STALE) {
1134                         fprintf(stderr,
1135                                 "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
1136                                 progname);
1137                         return -EINVAL;
1138                 }
1139
1140                 ids[count] = comp_id;
1141                 flags_array[count] = neg_flags | LCME_FL_NEG;
1142                 ++count;
1143         }
1144
1145         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1146         if (rc) {
1147                 if (errno == EUCLEAN) {
1148                         rc = -errno;
1149                         fprintf(stderr,
1150                                 "%s: cannot set 'stale' flag on component '%#x' of the last non-stale mirror of '%s'\n",
1151                                 progname, comp_id, fname);
1152                 } else {
1153                         fprintf(stderr,
1154                                 "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1155                                 progname, comp_id, fname, flags, neg_flags);
1156                 }
1157         }
1158
1159         return rc;
1160 }
1161
1162 static int lfs_component_del(char *fname, __u32 comp_id,
1163                              __u32 flags, __u32 neg_flags)
1164 {
1165         int     rc = 0;
1166
1167         if (flags && neg_flags)
1168                 return -EINVAL;
1169
1170         if (!flags && neg_flags)
1171                 flags = neg_flags | LCME_FL_NEG;
1172
1173         if ((flags && comp_id) || (!flags && !comp_id))
1174                 return -EINVAL;
1175
1176         if (flags) {
1177                 if (flags & ~LCME_KNOWN_FLAGS) {
1178                         fprintf(stderr,
1179                                 "%s setstripe: unknown flags %#x\n",
1180                                 progname, flags);
1181                         return -EINVAL;
1182                 }
1183         } else if (comp_id > LCME_ID_MAX) {
1184                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1185                         progname, comp_id);
1186                 return -EINVAL;
1187         }
1188
1189         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1190         if (rc)
1191                 fprintf(stderr,
1192                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1193                         progname, comp_id, fname, strerror(errno));
1194         return rc;
1195 }
1196
1197 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1198 {
1199         int     rc;
1200
1201         if (!layout)
1202                 return -EINVAL;
1203
1204         rc = llapi_layout_file_comp_add(fname, layout);
1205         if (rc)
1206                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1207                         fname, strerror(errno));
1208         return rc;
1209 }
1210
1211 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1212                                 struct llapi_layout *layout)
1213 {
1214         struct stat     st;
1215         int     fd;
1216
1217         if (!layout)
1218                 return -EINVAL;
1219
1220         fd = lstat(fname, &st);
1221         if (fd == 0 && S_ISDIR(st.st_mode))
1222                 open_flags = O_DIRECTORY | O_RDONLY;
1223
1224         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1225         if (fd < 0)
1226                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1227                         S_ISDIR(st.st_mode) ?
1228                                 "set default composite layout for" :
1229                                 "create composite file",
1230                         fname, strerror(errno));
1231         return fd;
1232 }
1233
1234 static int lfs_migrate(char *name, __u64 migration_flags,
1235                        struct llapi_stripe_param *param,
1236                        struct llapi_layout *layout)
1237 {
1238         struct llapi_layout *existing;
1239         uint64_t dom_new, dom_cur;
1240         int fd = -1;
1241         int fdv = -1;
1242         int rc;
1243
1244         rc = migrate_open_files(name, migration_flags, param, layout,
1245                                 &fd, &fdv);
1246         if (rc < 0)
1247                 goto out;
1248
1249         rc = llapi_layout_dom_size(layout, &dom_new);
1250         if (rc) {
1251                 error_loc = "cannot get new layout DoM size";
1252                 goto out;
1253         }
1254         /* special case for migration to DOM layout*/
1255         existing = llapi_layout_get_by_fd(fd, 0);
1256         if (!existing) {
1257                 error_loc = "cannot get existing layout";
1258                 goto out;
1259         }
1260
1261         rc = llapi_layout_dom_size(existing, &dom_cur);
1262         if (rc) {
1263                 error_loc = "cannot get current layout DoM size";
1264                 goto out;
1265         }
1266
1267         /*
1268          * if file has DoM layout already then migration is possible to
1269          * the new layout with the same DoM component via swap layout,
1270          * if new layout used bigger DOM size, then mirroring is used
1271          */
1272         if (dom_new > dom_cur) {
1273                 rc = lfs_migrate_to_dom(fd, fdv, name, migration_flags, param,
1274                                         layout);
1275                 if (rc)
1276                         error_loc = "cannot migrate to DOM layout";
1277                 goto out_closed;
1278         }
1279
1280         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1281                 /*
1282                  * Blocking mode (forced if servers do not support file lease).
1283                  * It is also the default mode, since we cannot distinguish
1284                  * between a broken lease and a server that does not support
1285                  * atomic swap/close (LU-6785)
1286                  */
1287                 rc = migrate_block(fd, fdv);
1288                 goto out;
1289         }
1290
1291         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1292         if (rc < 0) {
1293                 error_loc = "cannot get lease";
1294                 goto out;
1295         }
1296
1297         rc = migrate_nonblock(fd, fdv);
1298         if (rc < 0) {
1299                 llapi_lease_release(fd);
1300                 goto out;
1301         }
1302
1303         /*
1304          * Atomically put lease, swap layouts and close.
1305          * for a migration we need to check data version on file did
1306          * not change.
1307          */
1308         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1309         if (rc < 0) {
1310                 error_loc = "cannot swap layout";
1311                 goto out;
1312         }
1313
1314 out:
1315         if (fd >= 0)
1316                 close(fd);
1317
1318         if (fdv >= 0)
1319                 close(fdv);
1320 out_closed:
1321         if (rc < 0)
1322                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1323                         progname, name, error_loc, strerror(-rc));
1324         else if (migration_flags & MIGRATION_VERBOSE)
1325                 printf("%s\n", name);
1326
1327         return rc;
1328 }
1329
1330 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1331 {
1332         char *name;
1333
1334         if (!string)
1335                 return -EINVAL;
1336
1337         *flags = 0;
1338         *neg_flags = 0;
1339         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1340                 bool found = false;
1341                 int i;
1342
1343                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1344                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1345                         const char *comp_name = comp_flags_table[i].cfn_name;
1346
1347                         if (strcmp(name, comp_name) == 0) {
1348                                 *flags |= comp_flag;
1349                                 found = true;
1350                         } else if (strncmp(name, "^", 1) == 0 &&
1351                                    strcmp(name + 1, comp_name) == 0) {
1352                                 *neg_flags |= comp_flag;
1353                                 found = true;
1354                         }
1355                 }
1356                 if (!found) {
1357                         llapi_printf(LLAPI_MSG_ERROR,
1358                                      "%s: component flag '%s' not supported\n",
1359                                      progname, name);
1360                         return -EINVAL;
1361                 }
1362         }
1363
1364         if (!*flags && !*neg_flags)
1365                 return -EINVAL;
1366
1367         /* don't allow to set and exclude the same flag */
1368         if (*flags & *neg_flags)
1369                 return -EINVAL;
1370
1371         return 0;
1372 }
1373
1374 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1375 {
1376         if (!string)
1377                 return -EINVAL;
1378
1379         *state = 0;
1380         *neg_state = 0;
1381
1382         if (strncmp(string, "^", 1) == 0) {
1383                 *neg_state = llapi_layout_string_flags(string + 1);
1384                 if (*neg_state != 0)
1385                         return 0;
1386         } else {
1387                 *state = llapi_layout_string_flags(string);
1388                 if (*state != 0)
1389                         return 0;
1390         }
1391
1392         llapi_printf(LLAPI_MSG_ERROR,
1393                      "%s: mirrored file state '%s' not supported\n",
1394                      progname, string);
1395         return -EINVAL;
1396 }
1397
1398 /**
1399  * struct mirror_args - Command-line arguments for mirror(s).
1400  * @m_count:  Number of mirrors to be created with this layout.
1401  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1402  * @m_layout: Mirror layout.
1403  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1404  * @m_next:   Point to the next node of the list.
1405  *
1406  * Command-line arguments for mirror(s) will be parsed and stored in
1407  * a linked list that consists of this structure.
1408  */
1409 struct mirror_args {
1410         __u32                   m_count;
1411         __u32                   m_flags;
1412         struct llapi_layout     *m_layout;
1413         const char              *m_file;
1414         struct mirror_args      *m_next;
1415         bool                    m_inherit;
1416 };
1417
1418 /**
1419  * enum mirror_flags - Flags for extending a mirrored file.
1420  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1421  *             in case the victim file(s) contains the same data as the
1422  *             original mirrored file.
1423  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1424  * @MF_COMP_ID: specified component id instead of mirror id
1425  *
1426  * Flags for extending a mirrored file.
1427  */
1428 enum mirror_flags {
1429         MF_NO_VERIFY    = 0x1,
1430         MF_DESTROY      = 0x2,
1431         MF_COMP_ID      = 0x4,
1432         MF_COMP_POOL    = 0x8,
1433 };
1434
1435 /**
1436  * mirror_create_sanity_check() - Check mirror list.
1437  * @list:  A linked list that stores the mirror arguments.
1438  *
1439  * This function does a sanity check on @list for creating
1440  * a mirrored file.
1441  *
1442  * Return: 0 on success or a negative error code on failure.
1443  */
1444 static int mirror_create_sanity_check(const char *fname,
1445                                       struct mirror_args *list)
1446 {
1447         int rc = 0;
1448         bool has_m_file = false;
1449         bool has_m_layout = false;
1450
1451         if (!list)
1452                 return -EINVAL;
1453
1454         if (fname) {
1455                 struct llapi_layout *layout;
1456
1457                 layout = llapi_layout_get_by_path(fname, 0);
1458                 if (!layout) {
1459                         fprintf(stderr,
1460                                 "error: %s: file '%s' couldn't get layout\n",
1461                                 progname, fname);
1462                         return -ENODATA;
1463                 }
1464
1465                 rc = llapi_layout_sanity(layout, false, true);
1466
1467                 llapi_layout_free(layout);
1468
1469                 if (rc) {
1470                         llapi_layout_sanity_perror(rc);
1471                         return rc;
1472                 }
1473         }
1474
1475         while (list) {
1476                 if (list->m_file) {
1477                         has_m_file = true;
1478                         llapi_layout_free(list->m_layout);
1479
1480                         list->m_layout =
1481                                 llapi_layout_get_by_path(list->m_file, 0);
1482                         if (!list->m_layout) {
1483                                 fprintf(stderr,
1484                                         "error: %s: file '%s' has no layout\n",
1485                                         progname, list->m_file);
1486                                 return -ENODATA;
1487                         }
1488                 } else {
1489                         has_m_layout = true;
1490                         if (!list->m_layout) {
1491                                 fprintf(stderr, "error: %s: no mirror layout\n",
1492                                         progname);
1493                                 return -EINVAL;
1494                         }
1495                 }
1496
1497                 rc = llapi_layout_sanity(list->m_layout, false, true);
1498                 if (rc) {
1499                         llapi_layout_sanity_perror(rc);
1500                         return rc;
1501                 }
1502
1503                 list = list->m_next;
1504         }
1505
1506         if (has_m_file && has_m_layout) {
1507                 fprintf(stderr,
1508                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1509                         progname);
1510                 return -EINVAL;
1511         }
1512
1513         return 0;
1514 }
1515
1516 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1517 {
1518         __u32 mirror_flags = *(__u32 *)cbdata;
1519         uint32_t flags;
1520         int rc;
1521
1522         rc = llapi_layout_comp_flags_get(layout, &flags);
1523         if (rc < 0)
1524                 return rc;
1525
1526         if (!flags) {
1527                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1528                 if (rc)
1529                         return rc;
1530         }
1531
1532         return LLAPI_LAYOUT_ITER_CONT;
1533 }
1534
1535 /**
1536  * mirror_create() - Create a mirrored file.
1537  * @fname:        The file to be created.
1538  * @mirror_list:  A linked list that stores the mirror arguments.
1539  *
1540  * This function creates a mirrored file @fname with the mirror(s)
1541  * from @mirror_list.
1542  *
1543  * Return: 0 on success or a negative error code on failure.
1544  */
1545 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1546 {
1547         struct llapi_layout *layout = NULL;
1548         struct mirror_args *cur_mirror = NULL;
1549         uint16_t mirror_count = 0;
1550         int i = 0;
1551         int rc = 0;
1552
1553         rc = mirror_create_sanity_check(NULL, mirror_list);
1554         if (rc)
1555                 return rc;
1556
1557         cur_mirror = mirror_list;
1558         while (cur_mirror) {
1559                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1560                                                mirror_set_flags,
1561                                                &cur_mirror->m_flags);
1562                 if (rc) {
1563                         rc = -errno;
1564                         fprintf(stderr, "%s: failed to set mirror flags\n",
1565                                 progname);
1566                         goto error;
1567                 }
1568
1569                 for (i = 0; i < cur_mirror->m_count; i++) {
1570                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1571                         if (rc) {
1572                                 rc = -errno;
1573                                 fprintf(stderr,
1574                                         "error: %s: merge layout failed: %s\n",
1575                                         progname, strerror(errno));
1576                                 goto error;
1577                         }
1578                 }
1579                 mirror_count += cur_mirror->m_count;
1580                 cur_mirror = cur_mirror->m_next;
1581         }
1582
1583         if (!layout) {
1584                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1585                 return -EINVAL;
1586         }
1587
1588         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1589         if (rc) {
1590                 rc = -errno;
1591                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1592                         progname, strerror(errno));
1593                 goto error;
1594         }
1595
1596         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1597                                   layout);
1598         if (rc >= 0) {
1599                 close(rc);
1600                 rc = 0;
1601         }
1602
1603 error:
1604         llapi_layout_free(layout);
1605         return rc;
1606 }
1607
1608 /**
1609  * Compare files and check lease on @fd.
1610  *
1611  * \retval bytes number of bytes are the same
1612  */
1613 static ssize_t mirror_file_compare(int fd, int fdv)
1614 {
1615         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1616         void *buf;
1617         ssize_t bytes_done = 0;
1618         ssize_t bytes_read = 0;
1619
1620         buf = malloc(buflen * 2);
1621         if (!buf)
1622                 return -ENOMEM;
1623
1624         while (1) {
1625                 if (!llapi_lease_check(fd)) {
1626                         bytes_done = -EBUSY;
1627                         break;
1628                 }
1629
1630                 bytes_read = read(fd, buf, buflen);
1631                 if (bytes_read <= 0)
1632                         break;
1633
1634                 if (bytes_read != read(fdv, buf + buflen, buflen))
1635                         break;
1636
1637                 /*
1638                  * XXX: should compute the checksum on each buffer and then
1639                  * compare checksum to avoid cache collision
1640                  */
1641                 if (memcmp(buf, buf + buflen, bytes_read))
1642                         break;
1643
1644                 bytes_done += bytes_read;
1645         }
1646
1647         free(buf);
1648
1649         return bytes_done;
1650 }
1651
1652 static int mirror_extend_file(const char *fname, const char *victim_file,
1653                               enum mirror_flags mirror_flags)
1654 {
1655         int fd = -1;
1656         int fdv = -1;
1657         struct stat stbuf;
1658         struct stat stbuf_v;
1659         struct ll_ioc_lease *data = NULL;
1660         int rc;
1661
1662         fd = open(fname, O_RDWR);
1663         if (fd < 0) {
1664                 error_loc = "open source file";
1665                 rc = -errno;
1666                 goto out;
1667         }
1668
1669         fdv = open(victim_file, O_RDWR);
1670         if (fdv < 0) {
1671                 error_loc = "open target file";
1672                 rc = -errno;
1673                 goto out;
1674         }
1675
1676         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1677                 error_loc = "stat source or target file";
1678                 rc = -errno;
1679                 goto out;
1680         }
1681
1682         if (stbuf.st_dev != stbuf_v.st_dev) {
1683                 error_loc = "stat source and target file";
1684                 rc = -EXDEV;
1685                 goto out;
1686         }
1687
1688         /* mirrors should be of the same size */
1689         if (stbuf.st_size != stbuf_v.st_size) {
1690                 error_loc = "file sizes don't match";
1691                 rc = -EINVAL;
1692                 goto out;
1693         }
1694
1695         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1696         if (rc < 0) {
1697                 error_loc = "cannot get lease";
1698                 goto out;
1699         }
1700
1701         if (!(mirror_flags & MF_NO_VERIFY)) {
1702                 ssize_t ret;
1703                 /* mirrors should have the same contents */
1704                 ret = mirror_file_compare(fd, fdv);
1705                 if (ret != stbuf.st_size) {
1706                         error_loc = "file busy or contents don't match";
1707                         rc = ret < 0 ? ret : -EINVAL;
1708                         goto out;
1709                 }
1710         }
1711
1712         /* Get rid of caching pages from clients */
1713         rc = llapi_file_flush(fd);
1714         if (rc < 0) {
1715                 error_loc = "cannot get data version";
1716                 goto out;
1717         }
1718
1719         rc = llapi_file_flush(fdv);
1720         if (rc < 0) {
1721                 error_loc = "cannot get data version";
1722                 goto out;
1723         }
1724
1725         /* Make sure we keep original atime/mtime values */
1726         rc = migrate_copy_timestamps(fd, fdv);
1727         if (rc < 0) {
1728                 error_loc = "cannot copy timestamp";
1729                 goto out;
1730         }
1731
1732         /* Atomically put lease, merge layouts and close. */
1733         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1734         if (!data) {
1735                 error_loc = "memory allocation";
1736                 goto out;
1737         }
1738         data->lil_mode = LL_LEASE_UNLCK;
1739         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1740         data->lil_count = 1;
1741         data->lil_ids[0] = fdv;
1742         rc = llapi_lease_set(fd, data);
1743         if (rc < 0) {
1744                 error_loc = "cannot merge layout";
1745                 goto out;
1746         } else if (rc == 0) {
1747                 rc = -EBUSY;
1748                 error_loc = "lost lease lock";
1749                 goto out;
1750         }
1751         rc = 0;
1752
1753 out:
1754         if (data)
1755                 free(data);
1756         if (fd >= 0)
1757                 close(fd);
1758         if (fdv >= 0)
1759                 close(fdv);
1760         if (!rc)
1761                 (void) unlink(victim_file);
1762         if (rc < 0)
1763                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1764                         progname, fname, error_loc, strerror(-rc));
1765         return rc;
1766 }
1767
1768 static int mirror_extend_layout(char *name, struct llapi_layout *m_layout,
1769                                 bool inherit)
1770 {
1771         struct llapi_layout *f_layout = NULL;
1772         struct ll_ioc_lease *data = NULL;
1773         int fd = -1;
1774         int fdv = -1;
1775         int rc = 0;
1776
1777         if (inherit) {
1778                 f_layout = llapi_layout_get_by_path(name, 0);
1779                 if (!f_layout) {
1780                         fprintf(stderr, "%s: cannot get layout\n", progname);
1781                         goto out;
1782                 }
1783                 rc = llapi_layout_get_last_init_comp(f_layout);
1784                 if (rc) {
1785                         fprintf(stderr, "%s: cannot get the last init comp\n",
1786                                 progname);
1787                         goto out;
1788                 }
1789                 rc = llapi_layout_mirror_inherit(f_layout, m_layout);
1790                 if (rc) {
1791                         fprintf(stderr,
1792                                 "%s: cannot inherit from the last init comp\n",
1793                                 progname);
1794                         goto out;
1795                 }
1796         }
1797         rc = migrate_open_files(name, 0, NULL, m_layout, &fd, &fdv);
1798         if (rc < 0)
1799                 goto out;
1800
1801         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1802         if (rc < 0) {
1803                 error_loc = "cannot get lease";
1804                 goto out;
1805         }
1806
1807         rc = migrate_nonblock(fd, fdv);
1808         if (rc < 0) {
1809                 llapi_lease_release(fd);
1810                 goto out;
1811         }
1812
1813         /* Atomically put lease, merge layouts and close. */
1814         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1815         if (!data) {
1816                 error_loc = "memory allocation";
1817                 goto out;
1818         }
1819         data->lil_mode = LL_LEASE_UNLCK;
1820         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1821         data->lil_count = 1;
1822         data->lil_ids[0] = fdv;
1823         rc = llapi_lease_set(fd, data);
1824         if (rc < 0) {
1825                 error_loc = "cannot merge layout";
1826                 goto out;
1827         } else if (rc == 0) {
1828                 rc = -EBUSY;
1829                 error_loc = "lost lease lock";
1830                 goto out;
1831         }
1832         rc = 0;
1833
1834 out:
1835         if (data)
1836                 free(data);
1837         if (fd >= 0)
1838                 close(fd);
1839         if (fdv >= 0)
1840                 close(fdv);
1841         if (rc < 0)
1842                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1843                         progname, name, error_loc, strerror(-rc));
1844         return rc;
1845 }
1846
1847 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1848                          enum mirror_flags mirror_flags)
1849 {
1850         int rc;
1851
1852         rc = mirror_create_sanity_check(fname, mirror_list);
1853         if (rc)
1854                 return rc;
1855
1856         while (mirror_list) {
1857                 if (mirror_list->m_file) {
1858                         rc = mirror_extend_file(fname, mirror_list->m_file,
1859                                                 mirror_flags);
1860                 } else {
1861                         __u32 mirror_count = mirror_list->m_count;
1862
1863                         while (mirror_count > 0) {
1864                                 rc = mirror_extend_layout(fname,
1865                                                         mirror_list->m_layout,
1866                                                         mirror_list->m_inherit);
1867                                 if (rc)
1868                                         break;
1869
1870                                 --mirror_count;
1871                         }
1872                 }
1873                 if (rc)
1874                         break;
1875
1876                 mirror_list = mirror_list->m_next;
1877         }
1878
1879         return rc;
1880 }
1881
1882 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1883 {
1884         uint32_t id;
1885         int rc;
1886
1887         rc = llapi_layout_mirror_id_get(layout, &id);
1888         if (rc < 0)
1889                 return rc;
1890
1891         if ((__u16)id == *(__u16 *)cbdata)
1892                 return LLAPI_LAYOUT_ITER_STOP;
1893
1894         return LLAPI_LAYOUT_ITER_CONT;
1895 }
1896
1897 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1898 {
1899         uint32_t id;
1900         int rc;
1901
1902         rc = llapi_layout_comp_id_get(layout, &id);
1903         if (rc < 0)
1904                 return rc;
1905
1906         if (id == *(__u32 *)cbdata)
1907                 return LLAPI_LAYOUT_ITER_STOP;
1908
1909         return LLAPI_LAYOUT_ITER_CONT;
1910 }
1911
1912 struct pool_to_id_cbdata {
1913         const char *pool;
1914         __u32 id;
1915 };
1916
1917 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata)
1918 {
1919         char buf[LOV_MAXPOOLNAME + 1];
1920         struct pool_to_id_cbdata *d = (void *)cbdata;
1921         uint32_t id;
1922         int rc;
1923
1924         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
1925         if (rc < 0)
1926                 return rc;
1927         if (strcmp(d->pool, buf))
1928                 return LLAPI_LAYOUT_ITER_CONT;
1929
1930         rc = llapi_layout_mirror_id_get(layout, &id);
1931         if (rc < 0)
1932                 return rc;
1933         d->id = id;
1934
1935         return LLAPI_LAYOUT_ITER_STOP;
1936 }
1937
1938 struct collect_ids_data {
1939         __u16   *cid_ids;
1940         int     cid_count;
1941         __u16   cid_exclude;
1942 };
1943
1944 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
1945 {
1946         struct collect_ids_data *cid = cbdata;
1947         uint32_t id;
1948         int rc;
1949
1950         rc = llapi_layout_mirror_id_get(layout, &id);
1951         if (rc < 0)
1952                 return rc;
1953
1954         if ((__u16)id != cid->cid_exclude) {
1955                 int i;
1956
1957                 for (i = 0; i < cid->cid_count; i++) {
1958                         /* already collected the mirror id */
1959                         if (id == cid->cid_ids[i])
1960                                 return LLAPI_LAYOUT_ITER_CONT;
1961                 }
1962                 cid->cid_ids[cid->cid_count] = id;
1963                 cid->cid_count++;
1964         }
1965
1966         return LLAPI_LAYOUT_ITER_CONT;
1967 }
1968
1969 /**
1970  * last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
1971  * @mirror_id: Mirror id to be checked.
1972  * @layout:    Mirror component list.
1973  *
1974  * This function checks if a mirror with specified @mirror_id is the last
1975  * non-stale mirror of a layout @layout.
1976  *
1977  * Return: true or false.
1978  */
1979 static inline
1980 bool last_non_stale_mirror(__u16 mirror_id, struct llapi_layout *layout)
1981 {
1982         __u16 mirror_ids[128] = { 0 };
1983         struct collect_ids_data cid = { .cid_ids = mirror_ids,
1984                                         .cid_count = 0,
1985                                         .cid_exclude = mirror_id, };
1986         int i;
1987
1988         llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
1989
1990         for (i = 0; i < cid.cid_count; i++) {
1991                 struct llapi_resync_comp comp_array[1024] = { { 0 } };
1992                 int comp_size = 0;
1993
1994                 comp_size = llapi_mirror_find_stale(layout, comp_array,
1995                                                     ARRAY_SIZE(comp_array),
1996                                                     &mirror_ids[i], 1);
1997                 if (comp_size == 0)
1998                         return false;
1999         }
2000
2001         return true;
2002 }
2003
2004 static int mirror_split(const char *fname, __u32 id, const char *pool,
2005                         enum mirror_flags mflags, const char *victim_file)
2006 {
2007         struct llapi_layout *layout;
2008         char parent[PATH_MAX];
2009         char victim[PATH_MAX];
2010         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
2011         char *ptr;
2012         struct ll_ioc_lease *data;
2013         uint16_t mirror_count;
2014         __u32 mirror_id;
2015         int mdt_index;
2016         int fd, fdv;
2017         int rc;
2018
2019         /* check fname contains mirror with mirror_id/comp_id */
2020         layout = llapi_layout_get_by_path(fname, 0);
2021         if (!layout) {
2022                 fprintf(stderr,
2023                         "error %s: file '%s' couldn't get layout\n",
2024                         progname, fname);
2025                 return -EINVAL;
2026         }
2027
2028         rc = llapi_layout_sanity(layout, false, true);
2029         if (rc) {
2030                 llapi_layout_sanity_perror(rc);
2031                 goto free_layout;
2032         }
2033
2034         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
2035         if (rc) {
2036                 fprintf(stderr,
2037                         "error %s: file '%s' couldn't get mirror count\n",
2038                         progname, fname);
2039                 goto free_layout;
2040         }
2041         if (mirror_count < 2) {
2042                 fprintf(stderr,
2043                         "error %s: file '%s' has %d component, cannot split\n",
2044                         progname, fname, mirror_count);
2045                 goto free_layout;
2046         }
2047
2048         if (mflags & MF_COMP_POOL) {
2049                 struct pool_to_id_cbdata data = { .pool = pool };
2050
2051                 rc = llapi_layout_comp_iterate(layout, find_comp_id_by_pool,
2052                                                &data);
2053                 mirror_id = data.id;
2054         } else if (mflags & MF_COMP_ID) {
2055                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
2056                 mirror_id = mirror_id_of(id);
2057         } else {
2058                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
2059                 mirror_id = id;
2060         }
2061         if (rc < 0) {
2062                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
2063                         progname, fname);
2064                 goto free_layout;
2065         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
2066                 if (mflags & MF_COMP_POOL) {
2067                         fprintf(stderr,
2068                                 "error %s: file '%s' does not contain mirror with pool '%s'\n",
2069                                 progname, fname, pool);
2070                         goto free_layout;
2071                 } else if (mflags & MF_COMP_ID) {
2072                         fprintf(stderr,
2073                                 "error %s: file '%s' does not contain mirror with comp-id %u\n",
2074                                 progname, fname, id);
2075                         goto free_layout;
2076                 } else {
2077                         fprintf(stderr,
2078                                 "error %s: file '%s' does not contain mirror with id %u\n",
2079                                 progname, fname, id);
2080                         goto free_layout;
2081                 }
2082         }
2083
2084         fd = open(fname, O_RDWR);
2085         if (fd < 0) {
2086                 fprintf(stderr,
2087                         "error %s: open file '%s' failed: %s\n",
2088                         progname, fname, strerror(errno));
2089                 goto free_layout;
2090         }
2091
2092         /* get victim file directory pathname */
2093         if (strlen(fname) > sizeof(parent) - 1) {
2094                 fprintf(stderr, "error %s: file name of '%s' too long\n",
2095                         progname, fname);
2096                 rc = -ERANGE;
2097                 goto close_fd;
2098         }
2099         strncpy(parent, fname, sizeof(parent));
2100         ptr = strrchr(parent, '/');
2101         if (!ptr) {
2102                 if (!getcwd(parent, sizeof(parent))) {
2103                         fprintf(stderr, "error %s: getcwd failed: %s\n",
2104                                 progname, strerror(errno));
2105                         rc = -errno;
2106                         goto close_fd;
2107                 }
2108         } else {
2109                 if (ptr == parent)
2110                         ptr = parent + 1;
2111                 *ptr = '\0';
2112         }
2113
2114         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
2115         if (rc < 0) {
2116                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
2117                         progname, fname);
2118                 goto close_fd;
2119         }
2120
2121         if (!victim_file) {
2122                 /* use a temp file to store the splitted layout */
2123                 if (mflags & MF_DESTROY) {
2124                         if (last_non_stale_mirror(mirror_id, layout)) {
2125                                 rc = -EUCLEAN;
2126                                 fprintf(stderr,
2127                                         "%s: cannot destroy the last non-stale mirror of file '%s'\n",
2128                                         progname, fname);
2129                                 goto close_fd;
2130                         }
2131
2132                         fdv = llapi_create_volatile_idx(parent, mdt_index,
2133                                                         O_LOV_DELAY_CREATE);
2134                 } else {
2135                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
2136                                  fname, mirror_id);
2137                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
2138                 }
2139         } else {
2140                 /* user specified victim file */
2141                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
2142         }
2143
2144         if (fdv < 0) {
2145                 fprintf(stderr,
2146                         "error %s: create victim file failed: %s\n",
2147                         progname, strerror(errno));
2148                 goto close_fd;
2149         }
2150
2151         /* get lease lock of fname */
2152         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
2153         if (rc < 0) {
2154                 fprintf(stderr,
2155                         "error %s: cannot get lease of file '%s': %d\n",
2156                         progname, fname, rc);
2157                 goto close_victim;
2158         }
2159
2160         /* Atomatically put lease, split layouts and close. */
2161         data = malloc(offsetof(typeof(*data), lil_ids[2]));
2162         if (!data) {
2163                 rc = -ENOMEM;
2164                 goto close_victim;
2165         }
2166
2167         data->lil_mode = LL_LEASE_UNLCK;
2168         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
2169         data->lil_count = 2;
2170         data->lil_ids[0] = fdv;
2171         data->lil_ids[1] = mirror_id;
2172         rc = llapi_lease_set(fd, data);
2173         if (rc <= 0) {
2174                 if (rc == 0) /* lost lease lock */
2175                         rc = -EBUSY;
2176                 fprintf(stderr,
2177                         "error %s: cannot split '%s': %s\n",
2178                         progname, fname, strerror(-rc));
2179         } else {
2180                 rc = 0;
2181         }
2182         free(data);
2183
2184 close_victim:
2185         close(fdv);
2186 close_fd:
2187         close(fd);
2188 free_layout:
2189         llapi_layout_free(layout);
2190         return rc;
2191 }
2192
2193 static inline
2194 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
2195                            __u16 *mirror_ids, int ids_nr);
2196
2197 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
2198                               __u64 migration_flags,
2199                               struct llapi_stripe_param *param,
2200                               struct llapi_layout *layout)
2201 {
2202         struct ll_ioc_lease *data = NULL;
2203         int rc;
2204
2205         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
2206         if (rc < 0) {
2207                 error_loc = "cannot get lease";
2208                 goto out_close;
2209         }
2210
2211         /* Atomically put lease, merge layouts, resync and close. */
2212         data = calloc(1, offsetof(typeof(*data), lil_ids[1024]));
2213         if (!data) {
2214                 error_loc = "memory allocation";
2215                 goto out_close;
2216         }
2217         data->lil_mode = LL_LEASE_UNLCK;
2218         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2219         data->lil_count = 1;
2220         data->lil_ids[0] = fdv;
2221         rc = llapi_lease_set(fd, data);
2222         if (rc < 0) {
2223                 error_loc = "cannot merge layout";
2224                 goto out_close;
2225         } else if (rc == 0) {
2226                 rc = -EBUSY;
2227                 error_loc = "lost lease lock";
2228                 goto out_close;
2229         }
2230         close(fd);
2231         close(fdv);
2232
2233         rc = lfs_mirror_resync_file(name, data, NULL, 0);
2234         if (rc) {
2235                 error_loc = "cannot resync file";
2236                 goto out;
2237         }
2238
2239         /* delete first mirror now */
2240         rc = mirror_split(name, 1, NULL, MF_DESTROY, NULL);
2241         if (rc < 0)
2242                 error_loc = "cannot delete old layout";
2243         goto out;
2244
2245 out_close:
2246         close(fd);
2247         close(fdv);
2248 out:
2249         if (rc < 0)
2250                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2251                         progname, name, error_loc, strerror(-rc));
2252         else if (migration_flags & MIGRATION_VERBOSE)
2253                 printf("%s\n", name);
2254         if (data)
2255                 free(data);
2256         return rc;
2257 }
2258
2259 /**
2260  * Parse a string containing an target index list into an array of integers.
2261  *
2262  * The input string contains a comma delimited list of individual
2263  * indices and ranges, for example "1,2-4,7". Add the indices into the
2264  * \a tgts array and remove duplicates.
2265  *
2266  * \param[out] tgts             array to store indices in
2267  * \param[in] size              size of \a tgts array
2268  * \param[in] offset            starting index in \a tgts
2269  * \param[in] arg               string containing OST index list
2270  * \param[in/out] overstriping  index list may contain duplicates
2271  *
2272  * \retval positive    number of indices in \a tgts
2273  * \retval -EINVAL     unable to parse \a arg
2274  */
2275 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2276                          unsigned long long *pattern)
2277 {
2278         int rc;
2279         int nr = offset;
2280         int slots = size - offset;
2281         char *ptr = NULL;
2282         bool overstriped = false;
2283         bool end_of_loop;
2284
2285         if (!arg)
2286                 return -EINVAL;
2287
2288         end_of_loop = false;
2289         while (!end_of_loop) {
2290                 int start_index = 0;
2291                 int end_index = 0;
2292                 int i;
2293                 char *endptr = NULL;
2294
2295                 rc = -EINVAL;
2296
2297                 ptr = strchrnul(arg, ',');
2298
2299                 end_of_loop = *ptr == '\0';
2300                 *ptr = '\0';
2301
2302                 start_index = strtol(arg, &endptr, 0);
2303                 if (endptr == arg) /* no data at all */
2304                         break;
2305                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
2306                         break;
2307
2308                 end_index = start_index;
2309                 if (*endptr == '-') {
2310                         end_index = strtol(endptr + 1, &endptr, 0);
2311                         if (*endptr != '\0')
2312                                 break;
2313                         if (end_index < start_index)
2314                                 break;
2315                 }
2316
2317                 for (i = start_index; i <= end_index && slots > 0; i++) {
2318                         int j;
2319
2320                         /* remove duplicate */
2321                         for (j = 0; j < offset; j++) {
2322                                 if (tgts[j] == i && pattern &&
2323                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2324                                         overstriped = true;
2325                                 else if (tgts[j] == i)
2326                                         return -EINVAL;
2327                         }
2328
2329                         j = offset;
2330
2331                         if (j == offset) { /* check complete */
2332                                 tgts[nr++] = i;
2333                                 --slots;
2334                         }
2335                 }
2336
2337                 if (slots == 0 && i < end_index)
2338                         break;
2339
2340                 *ptr = ',';
2341                 arg = ++ptr;
2342                 offset = nr;
2343                 rc = 0;
2344         }
2345         if (!end_of_loop && ptr)
2346                 *ptr = ',';
2347
2348         if (!overstriped && pattern)
2349                 *pattern = LLAPI_LAYOUT_DEFAULT;
2350
2351         return rc < 0 ? rc : nr;
2352 }
2353
2354 struct lfs_setstripe_args {
2355         unsigned long long       lsa_comp_end;
2356         unsigned long long       lsa_stripe_size;
2357         unsigned long long       lsa_extension_size;
2358         long long                lsa_stripe_count;
2359         long long                lsa_stripe_off;
2360         __u32                    lsa_comp_flags;
2361         __u32                    lsa_comp_neg_flags;
2362         unsigned long long       lsa_pattern;
2363         unsigned int             lsa_mirror_count;
2364         int                      lsa_nr_tgts;
2365         bool                     lsa_first_comp;
2366         bool                     lsa_extension_comp;
2367         __u32                   *lsa_tgts;
2368         char                    *lsa_pool_name;
2369 };
2370
2371 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2372 {
2373         unsigned int mirror_count = lsa->lsa_mirror_count;
2374         bool first_comp = lsa->lsa_first_comp;
2375
2376         memset(lsa, 0, sizeof(*lsa));
2377
2378         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2379         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2380         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2381         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2382         lsa->lsa_pool_name = NULL;
2383
2384         lsa->lsa_mirror_count = mirror_count;
2385         lsa->lsa_first_comp = first_comp;
2386 }
2387
2388 /**
2389  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2390  * @lsa: Stripe options to be initialized and inherited.
2391  *
2392  * This function initializes stripe options in @lsa and inherit
2393  * stripe_size, stripe_count and OST pool_name options.
2394  *
2395  * Return: void.
2396  */
2397 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2398 {
2399         unsigned long long stripe_size;
2400         long long stripe_count;
2401         char *pool_name = NULL;
2402
2403         stripe_size = lsa->lsa_stripe_size;
2404         stripe_count = lsa->lsa_stripe_count;
2405         pool_name = lsa->lsa_pool_name;
2406
2407         setstripe_args_init(lsa);
2408
2409         lsa->lsa_stripe_size = stripe_size;
2410         lsa->lsa_stripe_count = stripe_count;
2411         lsa->lsa_pool_name = pool_name;
2412 }
2413
2414 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2415 {
2416         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2417                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2418                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2419                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2420                 lsa->lsa_comp_end != 0);
2421 }
2422
2423 /**
2424  * comp_args_to_layout() - Create or extend a composite layout.
2425  * @composite:       Pointer to the composite layout.
2426  * @lsa:             Stripe options for the new component.
2427  *
2428  * This function creates or extends a composite layout by adding a new
2429  * component with stripe options from @lsa.
2430  *
2431  * Return: 0 on success or an error code on failure.
2432  */
2433 static int comp_args_to_layout(struct llapi_layout **composite,
2434                                struct lfs_setstripe_args *lsa,
2435                                bool set_extent)
2436 {
2437         struct llapi_layout *layout = *composite;
2438         uint64_t prev_end = 0;
2439         uint64_t size;
2440         int i = 0, rc;
2441
2442 new_comp:
2443         if (!layout) {
2444                 layout = llapi_layout_alloc();
2445                 if (!layout) {
2446                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2447                                 strerror(errno));
2448                         errno = ENOMEM;
2449                         return -1;
2450                 }
2451                 *composite = layout;
2452                 lsa->lsa_first_comp = true;
2453         } else {
2454                 uint64_t start;
2455
2456                 /*
2457                  * Get current component extent, current component
2458                  * must be the tail component.
2459                  */
2460                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2461                 if (rc) {
2462                         fprintf(stderr, "Get comp extent failed. %s\n",
2463                                 strerror(errno));
2464                         return rc;
2465                 }
2466
2467                 if (lsa->lsa_first_comp) {
2468                         prev_end = 0;
2469                         rc = llapi_layout_add_first_comp(layout);
2470                 } else {
2471                         rc = llapi_layout_comp_add(layout);
2472                 }
2473                 if (rc) {
2474                         fprintf(stderr, "Add component failed. %s\n",
2475                                 strerror(errno));
2476                         return rc;
2477                 }
2478         }
2479
2480         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2481         if (rc) {
2482                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2483                         lsa->lsa_comp_flags, strerror(errno));
2484                 return rc;
2485         }
2486
2487         if (set_extent) {
2488                 uint64_t comp_end = lsa->lsa_comp_end;
2489
2490                 /*
2491                  * The extendable component is 0-length, so it can be removed
2492                  * if there is insufficient space to extend it.
2493                  */
2494                 if (lsa->lsa_extension_comp)
2495                         comp_end = prev_end;
2496
2497                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2498                                                   comp_end);
2499                 if (rc) {
2500                         fprintf(stderr, "Set extent [%lu, %lu) failed. %s\n",
2501                                 prev_end, comp_end, strerror(errno));
2502                         return rc;
2503                 }
2504         }
2505         /* reset lsa_first_comp */
2506         lsa->lsa_first_comp = false;
2507
2508         /* Data-on-MDT component setting */
2509         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2510                 /*
2511                  * In case of Data-on-MDT patterns the only extra option
2512                  * applicable is stripe size option.
2513                  */
2514                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2515                         fprintf(stderr,
2516                                 "Option 'stripe-count' can't be specified with Data-on-MDT component: %lld\n",
2517                                 lsa->lsa_stripe_count);
2518                         errno = EINVAL;
2519                         return -1;
2520                 }
2521                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2522                         fprintf(stderr,
2523                                 "Option 'stripe-size' can't be specified with Data-on-MDT component: %llu\n",
2524                                 lsa->lsa_stripe_size);
2525                         errno = EINVAL;
2526                         return -1;
2527                 }
2528                 if (lsa->lsa_nr_tgts != 0) {
2529                         fprintf(stderr,
2530                                 "Option 'ost-list' can't be specified with Data-on-MDT component: '%i'\n",
2531                                 lsa->lsa_nr_tgts);
2532                         errno = EINVAL;
2533                         return -1;
2534                 }
2535                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2536                         fprintf(stderr,
2537                                 "Option 'stripe-offset' can't be specified with Data-on-MDT component: %lld\n",
2538                                 lsa->lsa_stripe_off);
2539                         errno = EINVAL;
2540                         return -1;
2541                 }
2542                 if (lsa->lsa_pool_name != 0) {
2543                         fprintf(stderr,
2544                                 "Option 'pool' can't be specified with Data-on-MDT component: '%s'\n",
2545                                 lsa->lsa_pool_name);
2546                         errno = EINVAL;
2547                         return -1;
2548                 }
2549
2550                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2551                 if (rc) {
2552                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2553                                 lsa->lsa_pattern,
2554                                 strerror(errno));
2555                         return rc;
2556                 }
2557                 /* Data-on-MDT component has always single stripe up to end */
2558                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2559         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2560                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2561                 if (rc) {
2562                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2563                                 lsa->lsa_pattern,
2564                                 strerror(errno));
2565                         return rc;
2566                 }
2567         }
2568
2569         size = lsa->lsa_comp_flags & LCME_FL_EXTENSION ?
2570                 lsa->lsa_extension_size : lsa->lsa_stripe_size;
2571
2572         if (lsa->lsa_comp_flags & LCME_FL_EXTENSION)
2573                 rc = llapi_layout_extension_size_set(layout, size);
2574         else
2575                 rc = llapi_layout_stripe_size_set(layout, size);
2576
2577         if (rc) {
2578                 fprintf(stderr, "Set stripe size %lu failed: %s\n",
2579                         size, strerror(errno));
2580                 return rc;
2581         }
2582
2583         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2584         if (rc) {
2585                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2586                         lsa->lsa_stripe_count, strerror(errno));
2587                 return rc;
2588         }
2589
2590         if (lsa->lsa_pool_name) {
2591                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2592                 if (rc) {
2593                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2594                                 lsa->lsa_pool_name, strerror(errno));
2595                         return rc;
2596                 }
2597         } else {
2598                 rc = llapi_layout_pool_name_set(layout, "");
2599                 if (rc) {
2600                         fprintf(stderr, "Clear pool name failed: %s\n",
2601                                 strerror(errno));
2602                         return rc;
2603                 }
2604         }
2605
2606         if (lsa->lsa_nr_tgts > 0) {
2607                 if (lsa->lsa_stripe_count > 0 &&
2608                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2609                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2610                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2611                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2612                                 lsa->lsa_stripe_count,
2613                                 lsa->lsa_nr_tgts);
2614                         errno = EINVAL;
2615                         return -1;
2616                 }
2617                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2618                         rc = llapi_layout_ost_index_set(layout, i,
2619                                                         lsa->lsa_tgts[i]);
2620                         if (rc)
2621                                 break;
2622                 }
2623         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2624                    lsa->lsa_stripe_off != -1) {
2625                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2626         }
2627         if (rc) {
2628                 fprintf(stderr, "Set ost index %d failed. %s\n",
2629                         i, strerror(errno));
2630                 return rc;
2631         }
2632
2633         /* Create the second, virtual component of extension space */
2634         if (lsa->lsa_extension_comp) {
2635                 lsa->lsa_comp_flags |= LCME_FL_EXTENSION;
2636                 lsa->lsa_extension_comp = false;
2637                 goto new_comp;
2638         }
2639
2640         return rc;
2641 }
2642
2643 static int build_component(struct llapi_layout **layout,
2644                            struct lfs_setstripe_args *lsa, bool set_extent)
2645 {
2646         int rc;
2647
2648         rc = comp_args_to_layout(layout, lsa, set_extent);
2649         if (rc)
2650                 return rc;
2651
2652         if (lsa->lsa_mirror_count > 0) {
2653                 rc = llapi_layout_mirror_count_set(*layout,
2654                                                    lsa->lsa_mirror_count);
2655                 if (rc)
2656                         return rc;
2657
2658                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2659                 if (rc)
2660                         return rc;
2661                 lsa->lsa_mirror_count = 0;
2662         }
2663
2664         return rc;
2665 }
2666
2667 static int build_prev_component(struct llapi_layout **layout,
2668                                 struct lfs_setstripe_args *prev,
2669                                 struct lfs_setstripe_args *lsa,
2670                                 bool set_extent)
2671 {
2672         int extension = lsa->lsa_comp_flags & LCME_FL_EXTENSION;
2673         int rc;
2674
2675         if (prev->lsa_stripe_size) {
2676                 if (extension) {
2677                         prev->lsa_comp_end = lsa->lsa_comp_end;
2678                         prev->lsa_extension_size = lsa->lsa_extension_size;
2679                         prev->lsa_extension_comp = true;
2680                 }
2681
2682                 rc = build_component(layout, prev, true);
2683                 if (rc)
2684                         return rc;
2685         }
2686
2687         /*
2688          * Copy lsa to previous lsa;
2689          * if this is an extension component, make the previous invalid;
2690          */
2691         if (extension)
2692                 prev->lsa_stripe_size = 0;
2693         else
2694                 *prev = *lsa;
2695
2696         return 0;
2697 }
2698
2699 static int build_layout_from_yaml_node(struct cYAML *node,
2700                                        struct llapi_layout **layout,
2701                                        struct lfs_setstripe_args *lsa,
2702                                        struct lfs_setstripe_args *prevp)
2703 {
2704         struct lfs_setstripe_args prev = { 0 };
2705         __u32 *osts = lsa->lsa_tgts;
2706         char *string;
2707         int rc = 0;
2708
2709         if (!prevp)
2710                 prevp = &prev;
2711
2712         while (node) {
2713                 string = node->cy_string;
2714
2715                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2716                         /* go deep to sub blocks */
2717                         if (string && !strncmp(string, "component", 9) &&
2718                             strncmp(string, "component0", 10) &&
2719                             strncmp(string, "components", 10)) {
2720                                 rc = build_prev_component(layout, prevp, lsa,
2721                                                           true);
2722                                 if (rc)
2723                                         return rc;
2724
2725                                 /* initialize lsa. */
2726                                 setstripe_args_init(lsa);
2727                                 lsa->lsa_first_comp = false;
2728                                 lsa->lsa_tgts = osts;
2729                         }
2730
2731                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2732                                                          lsa, prevp);
2733                         if (rc)
2734                                 return rc;
2735                 } else {
2736                         if (!node->cy_string)
2737                                 return -EINVAL;
2738
2739                         /* skip leading lmm_ if present, to simplify parsing */
2740                         if (strncmp(string, "lmm_", 4) == 0)
2741                                 string += 4;
2742
2743                         if (node->cy_type == CYAML_TYPE_STRING) {
2744                                 if (!strcmp(string, "lcme_extent.e_end")) {
2745                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2746                                             !strcmp(node->cy_valuestring, "eof"))
2747                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2748                                 } else if (!strcmp(string, "pool")) {
2749                                         lsa->lsa_pool_name = node->cy_valuestring;
2750                                 } else if (!strcmp(string, "pattern")) {
2751                                         if (!strcmp(node->cy_valuestring, "mdt"))
2752                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2753                                         if (!strcmp(node->cy_valuestring,
2754                                                     "raid0,overstriped"))
2755                                                 lsa->lsa_pattern =
2756                                                         LLAPI_LAYOUT_OVERSTRIPING;
2757                                 } else if (!strcmp(string, "lcme_flags")) {
2758                                         rc = comp_str2flags(node->cy_valuestring,
2759                                                             &lsa->lsa_comp_flags,
2760                                                             &lsa->lsa_comp_neg_flags);
2761                                         if (rc)
2762                                                 return rc;
2763                                         /*
2764                                          * Only template flags have meaning in
2765                                          * the layout for a new file
2766                                          */
2767                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2768                                 }
2769                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2770                                 if (!strcmp(string, "lcm_mirror_count")) {
2771                                         lsa->lsa_mirror_count = node->cy_valueint;
2772                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2773                                         if (node->cy_valueint == 0)
2774                                                 lsa->lsa_first_comp = true;
2775                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2776                                         if (node->cy_valueint == -1)
2777                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2778                                         else
2779                                                 lsa->lsa_comp_end = node->cy_valueint;
2780                                 } else if (!strcmp(string, "stripe_count")) {
2781                                         lsa->lsa_stripe_count = node->cy_valueint;
2782                                 } else if (!strcmp(string, "stripe_size")) {
2783                                         lsa->lsa_stripe_size = node->cy_valueint;
2784                                 } else if (!strcmp(string, "extension_size")) {
2785                                         lsa->lsa_extension_size = node->cy_valueint;
2786                                         lsa->lsa_extension_comp = true;
2787                                 } else if (!strcmp(string, "stripe_offset")) {
2788                                         lsa->lsa_stripe_off = node->cy_valueint;
2789                                 } else if (!strcmp(string, "l_ost_idx")) {
2790                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2791                                         lsa->lsa_nr_tgts++;
2792                                 }
2793                         }
2794                 }
2795                 node = node->cy_next;
2796         }
2797
2798         if (prevp == &prev) {
2799                 rc = build_prev_component(layout, prevp, lsa, true);
2800                 if (rc)
2801                         return rc;
2802
2803                 if (!(lsa->lsa_comp_flags & LCME_FL_EXTENSION))
2804                         rc = build_component(layout, lsa, *layout != NULL);
2805         }
2806
2807         return rc;
2808 }
2809
2810 static int lfs_comp_create_from_yaml(char *template,
2811                                      struct llapi_layout **layout,
2812                                      struct lfs_setstripe_args *lsa,
2813                                      __u32 *osts)
2814 {
2815         struct cYAML *tree = NULL, *err_rc = NULL;
2816         int rc = 0;
2817
2818         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2819         if (!tree) {
2820                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2821                         progname, template);
2822                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2823                                   "can't parse", &err_rc);
2824                 cYAML_print_tree2file(stderr, err_rc);
2825                 cYAML_free_tree(err_rc);
2826                 rc = -EINVAL;
2827                 goto err;
2828         }
2829
2830         /* initialize lsa for plain file */
2831         setstripe_args_init(lsa);
2832         lsa->lsa_tgts = osts;
2833
2834         rc = build_layout_from_yaml_node(tree, layout, lsa, NULL);
2835         if (rc) {
2836                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2837                         progname, template);
2838                 goto err;
2839         }
2840         /* clean clean lsa */
2841         setstripe_args_init(lsa);
2842
2843 err:
2844         if (tree)
2845                 cYAML_free_tree(tree);
2846         return rc;
2847 }
2848
2849 /**
2850  * Get the extension size from the next (SEL) component and extend the
2851  * current component on it. The start of the next component is to be
2852  * adjusted as well.
2853  *
2854  * \param[in] layout    the current layout
2855  * \param[in] start     the start of the current component
2856  * \param[in,out] end   the end of the current component
2857  * \param[in] offset    the offset to adjust the end position to instead of
2858  *                      extension size
2859  *
2860  * \retval 0            - extended successfully
2861  * \retval < 0          - error
2862  */
2863 static int layout_extend_comp(struct llapi_layout *layout,
2864                               uint64_t start, uint64_t *end,
2865                               uint64_t offset)
2866 {
2867         uint64_t size, next_start, next_end;
2868         int rc;
2869
2870         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
2871         if (rc < 0) {
2872                 fprintf(stderr,
2873                         "%s setstripe: cannot move component cursor: %s\n",
2874                         progname, strerror(errno));
2875                 return rc;
2876         }
2877
2878         /*
2879          * Even if the @size will not be used below, this will fail if
2880          * this is not a SEL component - a good confirmation we are
2881          * working on right components.
2882          */
2883         rc = llapi_layout_extension_size_get(layout, &size);
2884         if (rc < 0) {
2885                 fprintf(stderr,
2886                         "%s setstripe: cannot get component ext size: %s\n",
2887                         progname, strerror(errno));
2888                 return rc;
2889         }
2890
2891         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
2892         if (rc) {
2893                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2894                         progname, strerror(errno));
2895                 return rc;
2896         }
2897
2898         next_start += offset ?: size;
2899         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
2900         if (rc) {
2901                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
2902                         progname, strerror(errno));
2903                 return rc;
2904         }
2905
2906         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
2907         if (rc < 0) {
2908                 fprintf(stderr,
2909                         "%s setstripe: cannot move component cursor: %s\n",
2910                         progname, strerror(errno));
2911                 return rc;
2912         }
2913
2914         *end += offset ?: size;
2915         rc = llapi_layout_comp_extent_set(layout, start, *end);
2916         if (rc) {
2917                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
2918                         progname, strerror(errno));
2919                 return rc;
2920         }
2921
2922         return 0;
2923 }
2924
2925 /**
2926  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
2927  * end of the last component in the existing file, and adjust the
2928  * first extent start of the components to be added accordingly.
2929  *
2930  * In the create mode, we need to check if the first component is an extendable
2931  * SEL component and extend its length to the extension size (first component
2932  * of the PFL file is initialised at the create time, cannot be 0-lenght.
2933  */
2934 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
2935                                       bool comp_add)
2936 {
2937         struct llapi_layout *head;
2938         uint64_t start = 0, prev_end = 0;
2939         uint64_t end;
2940         int rc, ret = 0;
2941
2942         if (!layout || !(comp_add || llapi_layout_is_composite(layout)))
2943                 return 0;
2944
2945         errno = 0;
2946         while (comp_add) {
2947                 head = llapi_layout_get_by_path(fname, 0);
2948                 if (!head) {
2949                         fprintf(stderr,
2950                                 "%s setstripe: cannot read layout from '%s': %s\n",
2951                                 progname, fname, strerror(errno));
2952                         return -EINVAL;
2953                 } else if (errno == ENODATA) {
2954                         /*
2955                          * file without LOVEA, this component-add will be turned
2956                          * into a component-create.
2957                          */
2958                         llapi_layout_free(head);
2959                         ret = -ENODATA;
2960
2961                         /*
2962                          * the new layout will be added to an empty one, it
2963                          * still needs to be adjusted below
2964                          */
2965                         comp_add = 0;
2966                         break;
2967                 } else if (!llapi_layout_is_composite(head)) {
2968                         fprintf(stderr,
2969                                 "%s setstripe: '%s' not a composite file\n",
2970                                 progname, fname);
2971                         llapi_layout_free(head);
2972                         return -EINVAL;
2973                 }
2974
2975                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
2976                 if (rc) {
2977                         fprintf(stderr,
2978                                 "%s setstripe: cannot get prev extent: %s\n",
2979                                 progname, strerror(errno));
2980                         llapi_layout_free(head);
2981                         return rc;
2982                 }
2983
2984                 llapi_layout_free(head);
2985                 break;
2986         }
2987
2988         /* Make sure we use the first component of the layout to be added. */
2989         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
2990         if (rc < 0) {
2991                 fprintf(stderr,
2992                         "%s setstripe: cannot move component cursor: %s\n",
2993                         progname, strerror(errno));
2994                 return rc;
2995         }
2996
2997         rc = llapi_layout_comp_extent_get(layout, &start, &end);
2998         if (rc) {
2999                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3000                         progname, strerror(errno));
3001                 return rc;
3002         }
3003
3004         if (start == 0 && end == 0) {
3005                 rc = layout_extend_comp(layout, start, &end,
3006                                         comp_add ? prev_end : 0);
3007                 if (rc)
3008                         return rc;
3009         }
3010
3011         if (start > prev_end || end < prev_end) {
3012                 fprintf(stderr,
3013                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
3014                         progname, start, end, prev_end);
3015                 return -EINVAL;
3016         }
3017
3018         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
3019         if (rc) {
3020                 fprintf(stderr,
3021                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
3022                         progname, prev_end, end, strerror(errno));
3023                 return rc;
3024         }
3025
3026         return ret;
3027 }
3028
3029 static int mirror_adjust_first_extents(struct mirror_args *list)
3030 {
3031         int rc = 0;
3032
3033         if (!list)
3034                 return 0;
3035
3036         while (list) {
3037                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
3038                 if (rc)
3039                         break;
3040                 list = list->m_next;
3041         }
3042
3043         return rc;
3044 }
3045
3046 static inline bool arg_is_eof(char *arg)
3047 {
3048         return !strncmp(arg, "-1", strlen("-1")) ||
3049                !strncmp(arg, "EOF", strlen("EOF")) ||
3050                !strncmp(arg, "eof", strlen("eof"));
3051 }
3052
3053 /**
3054  * lfs_mirror_alloc() - Allocate a mirror argument structure.
3055  *
3056  * Return: Valid mirror_args pointer on success and
3057  *         NULL if memory allocation fails.
3058  */
3059 static struct mirror_args *lfs_mirror_alloc(void)
3060 {
3061         struct mirror_args *mirror = NULL;
3062
3063         while (1) {
3064                 mirror = calloc(1, sizeof(*mirror));
3065                 if (mirror) {
3066                         mirror->m_inherit = false;
3067                         break;
3068                 }
3069
3070                 sleep(1);
3071         }
3072
3073         return mirror;
3074 }
3075
3076 /**
3077  * lfs_mirror_free() - Free memory allocated for a mirror argument
3078  *                     structure.
3079  * @mirror: Previously allocated mirror argument structure by
3080  *          lfs_mirror_alloc().
3081  *
3082  * Free memory allocated for @mirror.
3083  *
3084  * Return: void.
3085  */
3086 static void lfs_mirror_free(struct mirror_args *mirror)
3087 {
3088         if (mirror->m_layout)
3089                 llapi_layout_free(mirror->m_layout);
3090         free(mirror);
3091 }
3092
3093 /**
3094  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
3095  * @mirror_list: Previously allocated mirror list.
3096  *
3097  * Free memory allocated for @mirror_list.
3098  *
3099  * Return: void.
3100  */
3101 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
3102 {
3103         struct mirror_args *next_mirror = NULL;
3104
3105         while (mirror_list) {
3106                 next_mirror = mirror_list->m_next;
3107                 lfs_mirror_free(mirror_list);
3108                 mirror_list = next_mirror;
3109         }
3110 }
3111
3112 enum {
3113         LFS_POOL_OPT = 3,
3114         LFS_COMP_COUNT_OPT,
3115         LFS_COMP_START_OPT,
3116         LFS_COMP_FLAGS_OPT,
3117         LFS_COMP_DEL_OPT,
3118         LFS_COMP_SET_OPT,
3119         LFS_COMP_ADD_OPT,
3120         LFS_COMP_NO_VERIFY_OPT,
3121         LFS_PROJID_OPT,
3122         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
3123         LFS_MIRROR_ID_OPT,
3124         LFS_MIRROR_STATE_OPT,
3125         LFS_LAYOUT_COPY,
3126         LFS_MIRROR_INDEX_OPT,
3127         LFS_LAYOUT_FOREIGN_OPT,
3128         LFS_MODE_OPT,
3129         LFS_NEWERXY_OPT,
3130 };
3131
3132 /* functions */
3133 static int lfs_setstripe_internal(int argc, char **argv,
3134                                   enum setstripe_origin opc)
3135 {
3136         struct lfs_setstripe_args        lsa = { 0 };
3137         struct llapi_stripe_param       *param = NULL;
3138         struct find_param                migrate_mdt_param = {
3139                 .fp_max_depth = -1,
3140                 .fp_mdt_index = -1,
3141         };
3142         char                            *fname;
3143         int                              result = 0;
3144         int                              result2 = 0;
3145         char                            *end;
3146         int                              c;
3147         int                              delete = 0;
3148         unsigned long long               size_units = 1;
3149         bool                             migrate_mode = false;
3150         bool                             migrate_mdt_mode = false;
3151         bool                             setstripe_mode = false;
3152         bool                             migration_block = false;
3153         __u64                            migration_flags = 0;
3154         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3155         int                              comp_del = 0, comp_set = 0;
3156         int                              comp_add = 0;
3157         __u32                            comp_id = 0;
3158         struct llapi_layout             *layout = NULL;
3159         struct llapi_layout             **lpp = &layout;
3160         bool                             mirror_mode = false;
3161         bool                             has_m_file = false;
3162         __u32                            mirror_count = 0;
3163         enum mirror_flags                mirror_flags = 0;
3164         struct mirror_args              *mirror_list = NULL;
3165         struct mirror_args              *new_mirror = NULL;
3166         struct mirror_args              *last_mirror = NULL;
3167         __u16                            mirror_id = 0;
3168         char                             cmd[PATH_MAX];
3169         bool from_yaml = false;
3170         bool from_copy = false;
3171         char *template = NULL;
3172         bool foreign_mode = false;
3173         char *xattr = NULL;
3174         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3175         char *mode_opt = NULL;
3176         mode_t previous_umask = 0;
3177         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3178
3179         struct option long_opts[] = {
3180 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3181 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3182         /* --block is only valid in migrate mode */
3183         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3184 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
3185         { .val = LFS_COMP_ADD_OPT,
3186                         .name = "comp-add",     .has_arg = no_argument },
3187         { .val = LFS_COMP_ADD_OPT,
3188                         .name = "component-add", .has_arg = no_argument },
3189         { .val = LFS_COMP_DEL_OPT,
3190                         .name = "comp-del",     .has_arg = no_argument },
3191         { .val = LFS_COMP_DEL_OPT,
3192                         .name = "component-del", .has_arg = no_argument },
3193         { .val = LFS_COMP_FLAGS_OPT,
3194                         .name = "comp-flags",   .has_arg = required_argument },
3195         { .val = LFS_COMP_FLAGS_OPT,
3196                         .name = "component-flags",
3197                                                 .has_arg = required_argument },
3198         { .val = LFS_COMP_SET_OPT,
3199                         .name = "comp-set",     .has_arg = no_argument },
3200         { .val = LFS_COMP_SET_OPT,
3201                         .name = "component-set",
3202                                                 .has_arg = no_argument},
3203         { .val = LFS_COMP_NO_VERIFY_OPT,
3204                         .name = "no-verify",    .has_arg = no_argument},
3205         { .val = LFS_LAYOUT_FLAGS_OPT,
3206                         .name = "flags",        .has_arg = required_argument},
3207         { .val = LFS_LAYOUT_FOREIGN_OPT,
3208                         .name = "foreign",      .has_arg = optional_argument},
3209         { .val = LFS_MIRROR_ID_OPT,
3210                         .name = "mirror-id",    .has_arg = required_argument},
3211         { .val = LFS_MODE_OPT,
3212                         .name = "mode",         .has_arg = required_argument},
3213         { .val = LFS_LAYOUT_COPY,
3214                         .name = "copy",         .has_arg = required_argument},
3215         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3216         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3217         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3218         { .val = 'C',   .name = "overstripe-count",
3219                                                 .has_arg = required_argument},
3220         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3221         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3222         /* --non-direct is only valid in migrate mode */
3223         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3224         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3225         { .val = 'E',   .name = "component-end",
3226                                                 .has_arg = required_argument},
3227         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3228 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3229 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3230 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3231 /* find { .val = 'h',   .name = "help",         .has_arg = no_argument }, */
3232         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3233         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3234         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3235         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3236         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3237 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3238         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3239         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3240         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3241         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3242         /* --non-block is only valid in migrate mode */
3243         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3244         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3245         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3246 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3247         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3248         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3249 #endif
3250         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3251 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3252 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3253 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3254 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3255         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3256         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3257 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3258 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3259 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3260 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3261         /* --verbose is only valid in migrate mode */
3262         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3263         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3264         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3265         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3266         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3267         { .name = NULL } };
3268
3269         setstripe_args_init(&lsa);
3270
3271         migrate_mode = (opc == SO_MIGRATE);
3272         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3273         setstripe_mode = (opc == SO_SETSTRIPE);
3274         if (opc == SO_MIRROR_DELETE) {
3275                 delete = 1;
3276                 mirror_flags = MF_DESTROY;
3277         }
3278
3279         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3280         progname = cmd;
3281         while ((c = getopt_long(argc, argv,
3282                                 "bc:C:dDE:f:H:i:I:m:N::no:p:L:s:S:vx:y:z:",
3283                                 long_opts, NULL)) >= 0) {
3284                 size_units = 1;
3285                 switch (c) {
3286                 case 0:
3287                         /* Long options. */
3288                         break;
3289                 case LFS_COMP_ADD_OPT:
3290                         comp_add = 1;
3291                         break;
3292                 case LFS_COMP_DEL_OPT:
3293                         comp_del = 1;
3294                         break;
3295                 case LFS_COMP_FLAGS_OPT:
3296                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3297                                                 &lsa.lsa_comp_neg_flags);
3298                         if (result != 0)
3299                                 goto usage_error;
3300                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3301                                 fprintf(stderr,
3302                                         "%s: inverted flags are not supported\n",
3303                                         progname);
3304                                 goto usage_error;
3305                         }
3306                         break;
3307                 case LFS_COMP_SET_OPT:
3308                         comp_set = 1;
3309                         break;
3310                 case LFS_COMP_NO_VERIFY_OPT:
3311                         mirror_flags |= MF_NO_VERIFY;
3312                         break;
3313                 case LFS_MIRROR_ID_OPT:
3314                         mirror_id = strtoul(optarg, &end, 0);
3315                         if (*end != '\0' || mirror_id == 0) {
3316                                 fprintf(stderr,
3317                                         "%s %s: invalid mirror ID '%s'\n",
3318                                         progname, argv[0], optarg);
3319                                 goto usage_error;
3320                         }
3321                         break;
3322                 case LFS_LAYOUT_FLAGS_OPT: {
3323                         uint32_t neg_flags;
3324
3325                         /* check for numeric flags (foreign and mirror cases) */
3326                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3327                                 flags = strtoul(optarg, &end, 16);
3328                                 if (*end != '\0') {
3329                                         fprintf(stderr,
3330                                                 "%s %s: bad flags '%s'\n",
3331                                                 progname, argv[0], optarg);
3332                                         return CMD_HELP;
3333                                 }
3334                                 break;
3335                         }
3336
3337                         if (!mirror_mode || !last_mirror) {
3338                                 fprintf(stderr,
3339                                         "error: %s: --flags must be specified with --mirror-count|-N option\n",
3340                                         progname);
3341                                 goto usage_error;
3342                         }
3343
3344                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3345                                                 &neg_flags);
3346                         if (result != 0)
3347                                 goto usage_error;
3348
3349                         if (neg_flags) {
3350                                 fprintf(stderr,
3351                                         "%s: inverted flags are not supported\n",
3352                                         progname);
3353                                 result = -EINVAL;
3354                                 goto usage_error;
3355                         }
3356                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3357                                 fprintf(stderr,
3358                                         "%s: unsupported mirror flags: %s\n",
3359                                         progname, optarg);
3360                                 result = -EINVAL;
3361                                 goto error;
3362                         }
3363                         break;
3364                 }
3365                 case LFS_LAYOUT_FOREIGN_OPT:
3366                         if (optarg) {
3367                                 /* check pure numeric */
3368                                 type = strtoul(optarg, &end, 0);
3369                                 if (*end) {
3370                                         /* check name */
3371                                         type = check_foreign_type_name(optarg);
3372                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3373                                                 fprintf(stderr,
3374                                                         "%s %s: unrecognized foreign type '%s'\n",
3375                                                         progname, argv[0],
3376                                                         optarg);
3377                                                 return CMD_HELP;
3378                                         }
3379                                 }
3380                         }
3381                         foreign_mode = true;
3382                         break;
3383                 case LFS_MODE_OPT:
3384                         mode_opt = optarg;
3385                         if (mode_opt) {
3386                                 mode = strtoul(mode_opt, &end, 8);
3387                                 if (*end != '\0') {
3388                                         fprintf(stderr,
3389                                                 "%s %s: bad mode '%s'\n",
3390                                                 progname, argv[0], mode_opt);
3391                                         return CMD_HELP;
3392                                 }
3393                                 previous_umask = umask(0);
3394                         }
3395                         break;
3396                 case LFS_LAYOUT_COPY:
3397                         from_copy = true;
3398                         template = optarg;
3399                         break;
3400                 case 'b':
3401                         if (!migrate_mode) {
3402                                 fprintf(stderr,
3403                                         "%s %s: -b|--block valid only for migrate command\n",
3404                                         progname, argv[0]);
3405                                 goto usage_error;
3406                         }
3407                         migration_block = true;
3408                         break;
3409                 case 'C':
3410                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3411                                 fprintf(stderr,
3412                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3413                                         progname, argv[0]);
3414                                 goto usage_error;
3415                         }
3416                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3417                         /* fall through */
3418                 case 'c':
3419                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3420                         if (*end != '\0') {
3421                                 fprintf(stderr,
3422                                         "%s %s: invalid stripe count '%s'\n",
3423                                         progname, argv[0], optarg);
3424                                 goto usage_error;
3425                         }
3426
3427                         if (lsa.lsa_stripe_count == -1)
3428                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3429                         break;
3430                 case 'd':
3431                         /* delete the default striping pattern */
3432                         delete = 1;
3433                         if (opc == SO_MIRROR_SPLIT) {
3434                                 if (has_m_file) {
3435                                         fprintf(stderr,
3436                                               "%s %s: -d cannot used with -f\n",
3437                                                 progname, argv[0]);
3438                                         goto usage_error;
3439                                 }
3440                                 mirror_flags |= MF_DESTROY;
3441                         }
3442                         break;
3443                 case 'D':
3444                         if (!migrate_mode) {
3445                                 fprintf(stderr,
3446                                         "%s %s: -D|--non-direct is valid only for migrate command\n",
3447                                         progname, argv[0]);
3448                                 goto usage_error;
3449                         }
3450                         migration_flags |= MIGRATION_NONDIRECT;
3451                         break;
3452                 case 'E':
3453                         if (lsa.lsa_comp_end != 0) {
3454                                 result = comp_args_to_layout(lpp, &lsa, true);
3455                                 if (result) {
3456                                         fprintf(stderr, "%s: invalid layout\n",
3457                                                 progname);
3458                                         goto usage_error;
3459                                 }
3460
3461                                 setstripe_args_init_inherit(&lsa);
3462                         }
3463
3464                         if (arg_is_eof(optarg)) {
3465                                 lsa.lsa_comp_end = LUSTRE_EOF;
3466                         } else {
3467                                 result = llapi_parse_size(optarg,
3468                                                         &lsa.lsa_comp_end,
3469                                                         &size_units, 0);
3470                                 if (result) {
3471                                         fprintf(stderr,
3472                                                 "%s %s: invalid component end '%s'\n",
3473                                                 progname, argv[0], optarg);
3474                                         goto usage_error;
3475                                 }
3476                         }
3477                         break;
3478                 case 'H':
3479                         if (!migrate_mode) {
3480                                 fprintf(stderr,
3481                                         "--mdt-hash is valid only for migrate command\n");
3482                                 return CMD_HELP;
3483                         }
3484
3485                         lsa.lsa_pattern = check_hashtype(optarg);
3486                         if (lsa.lsa_pattern == 0) {
3487                                 fprintf(stderr,
3488                                         "%s %s: bad stripe hash type '%s'\n",
3489                                         progname, argv[0], optarg);
3490                                 return CMD_HELP;
3491                         }
3492                         break;
3493                 case 'i':
3494                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3495                         if (*end != '\0') {
3496                                 fprintf(stderr,
3497                                         "%s %s: invalid stripe offset '%s'\n",
3498                                         progname, argv[0], optarg);
3499                                 goto usage_error;
3500                         }
3501                         if (lsa.lsa_stripe_off == -1)
3502                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3503                         break;
3504                 case 'I':
3505                         comp_id = strtoul(optarg, &end, 0);
3506                         if (*end != '\0' || comp_id == 0 ||
3507                             comp_id > LCME_ID_MAX) {
3508                                 fprintf(stderr,
3509                                         "%s %s: invalid component ID '%s'\n",
3510                                         progname, argv[0], optarg);
3511                                 goto usage_error;
3512                         }
3513                         break;
3514                 case 'f':
3515                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3516                                 fprintf(stderr,
3517                                         "error: %s: invalid option: %s\n",
3518                                         progname, argv[optopt + 1]);
3519                                 goto usage_error;
3520                         }
3521                         if (opc == SO_MIRROR_EXTEND) {
3522                                 if (!last_mirror) {
3523                                         fprintf(stderr,
3524                                 "error: %s: '-N' must exist in front of '%s'\n",
3525                                                 progname, argv[optopt + 1]);
3526                                         goto usage_error;
3527                                 }
3528                                 last_mirror->m_file = optarg;
3529                                 last_mirror->m_count = 1;
3530                         } else {
3531                                 /* mirror split */
3532                                 if (!mirror_list)
3533                                         mirror_list = lfs_mirror_alloc();
3534                                 mirror_list->m_file = optarg;
3535                         }
3536                         has_m_file = true;
3537                         break;
3538                 case 'L':
3539                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3540                                 /* Can be only the first component */
3541                                 if (layout) {
3542                                         result = -EINVAL;
3543                                         fprintf(stderr,
3544                                                 "error: 'mdt' layout can be only the first one\n");
3545                                         goto error;
3546                                 }
3547                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3548                                         result = -EFBIG;
3549                                         fprintf(stderr,
3550                                                 "error: 'mdt' layout size is too big\n");
3551                                         goto error;
3552                                 }
3553                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3554                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3555                                 result = -EINVAL;
3556                                 fprintf(stderr,
3557                                         "error: layout '%s' is unknown, supported layouts are: 'mdt', 'raid0'\n",
3558                                         argv[optind]);
3559                                 goto error;
3560                         }
3561                         break;
3562                 case 'm':
3563                         if (!migrate_mode) {
3564                                 fprintf(stderr,
3565                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3566                                         progname, argv[0]);
3567                                 goto usage_error;
3568                         }
3569                         migrate_mdt_mode = true;
3570                         lsa.lsa_nr_tgts = parse_targets(tgts,
3571                                                 sizeof(tgts) / sizeof(__u32),
3572                                                 lsa.lsa_nr_tgts, optarg, NULL);
3573                         if (lsa.lsa_nr_tgts < 0) {
3574                                 fprintf(stderr,
3575                                         "%s %s: invalid MDT target(s) '%s'\n",
3576                                         progname, argv[0], optarg);
3577                                 return CMD_HELP;
3578                         }
3579
3580                         lsa.lsa_tgts = tgts;
3581                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3582                                 lsa.lsa_stripe_off = tgts[0];
3583                         break;
3584                 case 'n':
3585                         if (!migrate_mode) {
3586                                 fprintf(stderr,
3587                                         "%s %s: -n|--non-block valid only for migrate command\n",
3588                                         progname, argv[0]);
3589                                 goto usage_error;
3590                         }
3591                         migration_flags |= MIGRATION_NONBLOCK;
3592                         break;
3593                 case 'N':
3594                         if (opc == SO_SETSTRIPE) {
3595                                 opc = SO_MIRROR_CREATE;
3596                                 mirror_mode = true;
3597                         }
3598                         mirror_count = 1;
3599                         if (optarg) {
3600                                 mirror_count = strtoul(optarg, &end, 0);
3601                                 if (*end != '\0' || mirror_count == 0) {
3602                                         fprintf(stderr,
3603                                                 "error: %s: bad mirror count: %s\n",
3604                                                 progname, optarg);
3605                                         result = -EINVAL;
3606                                         goto error;
3607                                 }
3608                         }
3609
3610                         new_mirror = lfs_mirror_alloc();
3611                         new_mirror->m_count = mirror_count;
3612
3613                         if (!mirror_list)
3614                                 mirror_list = new_mirror;
3615
3616                         if (last_mirror) {
3617                                 /* wrap up last mirror */
3618                                 if (!setstripe_args_specified(&lsa))
3619                                         last_mirror->m_inherit = true;
3620                                 if (lsa.lsa_comp_end == 0)
3621                                         lsa.lsa_comp_end = LUSTRE_EOF;
3622
3623                                 result = comp_args_to_layout(lpp, &lsa, true);
3624                                 if (result) {
3625                                         lfs_mirror_free(new_mirror);
3626                                         goto error;
3627                                 }
3628
3629                                 setstripe_args_init_inherit(&lsa);
3630
3631                                 last_mirror->m_next = new_mirror;
3632                         }
3633
3634                         last_mirror = new_mirror;
3635                         lpp = &last_mirror->m_layout;
3636                         break;
3637                 case 'o':
3638 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3639                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3640                                 fprintf(stderr,
3641                                         "warning: '--ost-list' is deprecated, use '--ost' instead\n");
3642 #endif
3643                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3644                                 fprintf(stderr,
3645                                         "%s %s: -o|--ost incompatible with DoM layout\n",
3646                                         progname, argv[0]);
3647                                 goto usage_error;
3648                         }
3649                         /*
3650                          * -o allows overstriping, and must note it because
3651                          * parse_targets is shared with MDT striping, which
3652                          * does not allow duplicates
3653                          */
3654                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3655                         lsa.lsa_nr_tgts = parse_targets(tgts,
3656                                                 sizeof(tgts) / sizeof(__u32),
3657                                                 lsa.lsa_nr_tgts, optarg,
3658                                                 &lsa.lsa_pattern);
3659                         if (lsa.lsa_nr_tgts < 0) {
3660                                 fprintf(stderr,
3661                                         "%s %s: invalid OST target(s) '%s'\n",
3662                                         progname, argv[0], optarg);
3663                                 goto usage_error;
3664                         }
3665
3666                         lsa.lsa_tgts = tgts;
3667                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3668                                 lsa.lsa_stripe_off = tgts[0];
3669                         break;
3670                 case 'p':
3671                         if (!optarg)
3672                                 goto usage_error;
3673                         lsa.lsa_pool_name = optarg;
3674
3675                         if (strlen(lsa.lsa_pool_name) == 0 ||
3676                             strncmp(lsa.lsa_pool_name, "none",
3677                                     LOV_MAXPOOLNAME) == 0)
3678                                 lsa.lsa_pool_name = NULL;
3679                         break;
3680                 case 'S':
3681                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3682                                                   &size_units, 0);
3683                         if (result) {
3684                                 fprintf(stderr,
3685                                         "%s %s: invalid stripe size '%s'\n",
3686                                         progname, argv[0], optarg);
3687                                 goto usage_error;
3688                         }
3689                         break;
3690                 case 'v':
3691                         if (!migrate_mode) {
3692                                 fprintf(stderr,
3693                                         "%s %s: -v|--verbose valid only for migrate command\n",
3694                                         progname, argv[0]);
3695                                 goto usage_error;
3696                         }
3697                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3698                         migration_flags = MIGRATION_VERBOSE;
3699                         break;
3700                 case 'x':
3701                         xattr = optarg;
3702                         break;
3703                 case 'y':
3704                         from_yaml = true;
3705                         template = optarg;
3706                         break;
3707                 case 'z':
3708                         result = llapi_parse_size(optarg,
3709                                                   &lsa.lsa_extension_size,
3710                                                   &size_units, 0);
3711                         if (result) {
3712                                 fprintf(stderr,
3713                                         "%s %s: invalid extension size '%s'\n",
3714                                         progname, argv[0], optarg);
3715                                 goto usage_error;
3716                         }
3717
3718                         lsa.lsa_extension_comp = true;
3719                         break;
3720                 default:
3721                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3722                                 progname, argv[0], argv[optind - 1]);
3723                         goto usage_error;
3724                 }
3725         }
3726
3727         fname = argv[optind];
3728
3729         if (optind == argc) {
3730                 fprintf(stderr, "%s %s: FILE must be specified\n",
3731                         progname, argv[0]);
3732                 goto usage_error;
3733         }
3734
3735         /* lfs migrate $filename should keep the file's layout by default */
3736         if (migrate_mode && !setstripe_args_specified(&lsa) && !layout &&
3737             !from_yaml)
3738                 from_copy = true;
3739
3740         if (xattr && !foreign_mode) {
3741                 /*
3742                  * only print a warning as this is harmless and will be ignored
3743                  */
3744                 fprintf(stderr,
3745                         "%s %s: xattr has been specified for non-foreign layout\n",
3746                         progname, argv[0]);
3747         } else if (foreign_mode && !xattr) {
3748                 fprintf(stderr,
3749                         "%s %s: xattr must be provided in foreign mode\n",
3750                         progname, argv[0]);
3751                 goto usage_error;
3752         }
3753
3754         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
3755             comp_set || comp_id || delete || from_copy ||
3756             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
3757             lsa.lsa_tgts)) {
3758                 fprintf(stderr,
3759                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
3760                         progname, argv[0]);
3761                 return CMD_HELP;
3762         }
3763
3764         if (mirror_mode && mirror_count == 0) {
3765                 fprintf(stderr,
3766                         "error: %s: --mirror-count|-N option is required\n",
3767                         progname);
3768                 result = -EINVAL;
3769                 goto error;
3770         }
3771
3772         if (mirror_mode) {
3773                 if (!setstripe_args_specified(&lsa))
3774                         last_mirror->m_inherit = true;
3775                 if (lsa.lsa_comp_end == 0)
3776                         lsa.lsa_comp_end = LUSTRE_EOF;
3777         }
3778
3779         if (lsa.lsa_comp_end != 0) {
3780                 result = comp_args_to_layout(lpp, &lsa, true);
3781                 if (result) {
3782                         fprintf(stderr, "error: %s: invalid layout\n",
3783                                 progname);
3784                         result = -EINVAL;
3785                         goto error;
3786                 }
3787         }
3788
3789         if (mirror_flags & MF_NO_VERIFY) {
3790                 if (opc != SO_MIRROR_EXTEND) {
3791                         fprintf(stderr,
3792                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
3793                                 progname);
3794                         result = -EINVAL;
3795                         goto error;
3796                 } else if (!has_m_file) {
3797                         fprintf(stderr,
3798                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
3799                                 progname);
3800                         result = -EINVAL;
3801                         goto error;
3802                 }
3803         }
3804
3805         if (comp_set && !comp_id) {
3806                 fprintf(stderr,
3807                         "%s %s: --component-set doesn't have component-id set\n",
3808                         progname, argv[0]);
3809                 goto usage_error;
3810         }
3811
3812         if ((delete + comp_set + comp_del + comp_add) > 1) {
3813                 fprintf(stderr,
3814                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
3815                         progname, argv[0]);
3816                 goto usage_error;
3817         }
3818
3819         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
3820                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
3821                 fprintf(stderr,
3822                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
3823                         progname, argv[0]);
3824                 goto usage_error;
3825         }
3826
3827         if ((comp_set || comp_del) &&
3828             (setstripe_args_specified(&lsa) || layout != NULL)) {
3829                 fprintf(stderr,
3830                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3831                         progname, argv[0]);
3832                 goto usage_error;
3833         }
3834
3835         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3836                 fprintf(stderr,
3837                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3838                         progname, argv[0]);
3839                 goto usage_error;
3840         }
3841
3842         if (comp_add || comp_del) {
3843                 struct stat st;
3844
3845                 result = lstat(fname, &st);
3846                 if (result == 0 && S_ISDIR(st.st_mode)) {
3847                         fprintf(stderr,
3848                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3849                                 progname);
3850                         goto usage_error;
3851                 }
3852
3853                 if (mirror_mode) {
3854                         fprintf(stderr,
3855                                 "error: %s: can't use --component-add or --component-del for mirror operation\n",
3856                                 progname);
3857                         goto usage_error;
3858                 }
3859         }
3860
3861         if (comp_add) {
3862                 if (!layout) {
3863                         fprintf(stderr,
3864                                 "%s %s: option -E must be specified with --component-add\n",
3865                                 progname, argv[0]);
3866                         goto usage_error;
3867                 }
3868         }
3869
3870         if (from_yaml && from_copy) {
3871                 fprintf(stderr,
3872                         "%s: can't specify --yaml and --copy together\n",
3873                         progname);
3874                 goto error;
3875         }
3876
3877         if ((from_yaml || from_copy) &&
3878             (setstripe_args_specified(&lsa) || layout != NULL)) {
3879                 fprintf(stderr,
3880                         "error: %s: can't specify --yaml or --copy with -c, -S, -i, -o, -p or -E options.\n",
3881                         argv[0]);
3882                 goto error;
3883         }
3884
3885         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
3886                 fprintf(stderr,
3887                         "%s %s: options --non-block and --block are mutually exclusive\n",
3888                         progname, argv[0]);
3889                 goto usage_error;
3890         }
3891
3892         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
3893             opc != SO_MIRROR_DELETE && comp_id != 0) {
3894                 fprintf(stderr,
3895                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
3896                         progname);
3897                 goto usage_error;
3898         }
3899
3900         if (migrate_mdt_mode) {
3901                 struct lmv_user_md *lmu;
3902
3903                 /* initialize migrate mdt parameters */
3904                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
3905                                                  LMV_USER_MAGIC_SPECIFIC));
3906                 if (!lmu) {
3907                         fprintf(stderr,
3908                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
3909                                 progname, argv[0], strerror(ENOMEM));
3910                         result = -ENOMEM;
3911                         goto error;
3912                 }
3913                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
3914                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
3915                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
3916                         fprintf(stderr,
3917                                 "%s %s: migrate should specify MDT index\n",
3918                                 progname, argv[0]);
3919                         free(lmu);
3920                         goto usage_error;
3921                 }
3922                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
3923                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
3924                         lmu->lum_hash_type = lsa.lsa_pattern;
3925                 else
3926                         lmu->lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
3927                 if (lsa.lsa_pool_name) {
3928                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
3929                                 sizeof(lmu->lum_pool_name) - 1);
3930                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
3931                 }
3932                 if (lsa.lsa_nr_tgts > 1) {
3933                         int i;
3934
3935                         if (lsa.lsa_stripe_count > 0 &&
3936                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3937                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
3938                                 fprintf(stderr,
3939                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
3940                                         progname, lsa.lsa_stripe_count,
3941                                         lsa.lsa_nr_tgts);
3942                                 free(lmu);
3943                                 goto usage_error;
3944                         }
3945
3946                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
3947                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
3948                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
3949                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
3950                 } else {
3951                         lmu->lum_magic = LMV_USER_MAGIC;
3952                 }
3953
3954                 migrate_mdt_param.fp_lmv_md = lmu;
3955                 migrate_mdt_param.fp_migrate = 1;
3956         } else if (!layout) {
3957                 /* initialize stripe parameters */
3958                 param = calloc(1, offsetof(typeof(*param),
3959                                lsp_osts[lsa.lsa_nr_tgts]));
3960                 if (!param) {
3961                         fprintf(stderr,
3962                                 "%s %s: cannot allocate memory for parameters: %s\n",
3963                                 progname, argv[0], strerror(ENOMEM));
3964                         result = -ENOMEM;
3965                         goto error;
3966                 }
3967
3968                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
3969                         param->lsp_stripe_size = lsa.lsa_stripe_size;
3970                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
3971                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
3972                                 param->lsp_stripe_count = -1;
3973                         else
3974                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3975                 }
3976                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3977                         param->lsp_stripe_offset = -1;
3978                 else
3979                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
3980                 param->lsp_stripe_pattern =
3981                                 llapi_pattern_to_lov(lsa.lsa_pattern);
3982                 if (param->lsp_stripe_pattern == EINVAL) {
3983                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
3984                                 argv[0]);
3985                         free(param);
3986                         goto usage_error;
3987                 }
3988                 param->lsp_pool = lsa.lsa_pool_name;
3989                 param->lsp_is_specific = false;
3990                 if (lsa.lsa_nr_tgts > 0) {
3991                         if (lsa.lsa_stripe_count > 0 &&
3992                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3993                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
3994                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
3995                                 fprintf(stderr,
3996                                         "error: %s: stripe count %lld doesn't match the number of OSTs: %d\n",
3997                                         argv[0], lsa.lsa_stripe_count,
3998                                         lsa.lsa_nr_tgts);
3999                                 free(param);
4000                                 goto usage_error;
4001                         }
4002
4003                         param->lsp_is_specific = true;
4004                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
4005                         memcpy(param->lsp_osts, tgts,
4006                                sizeof(*tgts) * lsa.lsa_nr_tgts);
4007                 }
4008         }
4009
4010         if (from_yaml) {
4011                 /* generate a layout from a YAML template */
4012                 result = lfs_comp_create_from_yaml(template, &layout,
4013                                                    &lsa, tgts);
4014                 if (result) {
4015                         fprintf(stderr,
4016                                 "error: %s: can't create composite layout from template file %s\n",
4017                                 argv[0], template);
4018                         goto error;
4019                 }
4020         }
4021
4022         if (layout != NULL || mirror_list != NULL) {
4023                 if (mirror_list)
4024                         result = mirror_adjust_first_extents(mirror_list);
4025                 else
4026                         result = layout_adjust_first_extent(fname, layout,
4027                                                             comp_add);
4028                 if (result == -ENODATA)
4029                         comp_add = 0;
4030                 else if (result != 0) {
4031                         fprintf(stderr, "error: %s: invalid layout\n",
4032                                 progname);
4033                         goto error;
4034                 }
4035         }
4036
4037         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
4038                 if (from_copy) {
4039                         layout = llapi_layout_get_by_path(template ?: fname, 0);
4040                         if (!layout) {
4041                                 fprintf(stderr,
4042                                         "%s: can't create composite layout from file %s.\n",
4043                                         progname, template ?: fname);
4044                                 goto error;
4045                         }
4046                 }
4047
4048                 if (migrate_mdt_mode) {
4049                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
4050                 } else if (migrate_mode) {
4051                         result = lfs_migrate(fname, migration_flags, param,
4052                                              layout);
4053                 } else if (comp_set != 0) {
4054                         result = lfs_component_set(fname, comp_id,
4055                                                    lsa.lsa_comp_flags,
4056                                                    lsa.lsa_comp_neg_flags);
4057                 } else if (comp_del != 0) {
4058                         result = lfs_component_del(fname, comp_id,
4059                                                    lsa.lsa_comp_flags,
4060                                                    lsa.lsa_comp_neg_flags);
4061                 } else if (comp_add != 0) {
4062                         result = lfs_component_add(fname, layout);
4063                 } else if (opc == SO_MIRROR_CREATE) {
4064                         result = mirror_create(fname, mirror_list);
4065                 } else if (opc == SO_MIRROR_EXTEND) {
4066                         result = mirror_extend(fname, mirror_list,
4067                                                mirror_flags);
4068                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
4069                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
4070                                 fprintf(stderr,
4071                                         "%s: no mirror specified to delete from '%s'\n",
4072                                         progname, fname);
4073                                 goto usage_error;
4074                         }
4075                         if (lsa.lsa_pool_name)
4076                                 mirror_flags |= MF_COMP_POOL;
4077                         else if (mirror_id != 0)
4078                                 comp_id = mirror_id;
4079                         else
4080                                 mirror_flags |= MF_COMP_ID;
4081                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
4082                                               mirror_flags,
4083                                               has_m_file ? mirror_list->m_file :
4084                                               NULL);
4085                 } else if (layout) {
4086                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
4087                                                       mode, layout);
4088                         if (result >= 0) {
4089                                 close(result);
4090                                 result = 0;
4091                         }
4092                 } else if (foreign_mode) {
4093                         result = llapi_file_create_foreign(fname, mode, type,
4094                                                            flags, xattr);
4095                         if (result >= 0) {
4096                                 close(result);
4097                                 result = 0;
4098                         }
4099                 } else {
4100                         result = llapi_file_open_param(fname,
4101                                                        O_CREAT | O_WRONLY,
4102                                                        mode, param);
4103                         if (result >= 0) {
4104                                 close(result);
4105                                 result = 0;
4106                         }
4107                 }
4108                 if (result) {
4109                         /* Save the first error encountered. */
4110                         if (result2 == 0)
4111                                 result2 = result;
4112                         continue;
4113                 }
4114         }
4115
4116         if (mode_opt)
4117                 umask(previous_umask);
4118
4119         free(param);
4120         free(migrate_mdt_param.fp_lmv_md);
4121         llapi_layout_free(layout);
4122         lfs_mirror_list_free(mirror_list);
4123         return result2;
4124 usage_error:
4125         result = CMD_HELP;
4126 error:
4127         llapi_layout_free(layout);
4128         lfs_mirror_list_free(mirror_list);
4129         return result;
4130 }
4131
4132 static int lfs_poollist(int argc, char **argv)
4133 {
4134         if (argc != 2)
4135                 return CMD_HELP;
4136
4137         return llapi_poollist(argv[1]);
4138 }
4139
4140 #define FP_DEFAULT_TIME_MARGIN (24 * 60 * 60)
4141 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
4142                        char *str)
4143 {
4144         long long t = 0;
4145         int sign = 0;
4146         char *endptr = "AD";
4147         char *timebuf;
4148
4149         if (str[0] == '+')
4150                 sign = 1;
4151         else if (str[0] == '-')
4152                 sign = -1;
4153
4154         if (sign)
4155                 str++;
4156
4157         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
4158                 long long val = strtoll(timebuf, &endptr, 0);
4159                 int unit = 1;
4160
4161                 switch (*endptr) {
4162                 case  'y':
4163                         unit *= 52; /* 52 weeks + 1 day below */
4164                 case  'w':      /* fallthrough */
4165                         unit *= 7;
4166                         if (param->fp_time_margin == FP_DEFAULT_TIME_MARGIN)
4167                                 param->fp_time_margin *= (1 + unit / 52);
4168                         unit += (*endptr == 'y'); /* +1 day for 365 days/year */
4169                 case '\0': /* days are default unit if none used */
4170                 case  'd':      /* fallthrough */
4171                         unit *= 24;
4172                 case  'h':      /* fallthrough */
4173                         unit *= 60;
4174                 case  'm':      /* fallthrough */
4175                         unit *= 60;
4176                 case  's':      /* fallthrough */
4177                         break;
4178                         /* don't need to multiply by 1 for seconds */
4179                 default:
4180                         fprintf(stderr,
4181                                 "%s find: bad time string '%s': %s\n",
4182                                 progname, timebuf, strerror(EINVAL));
4183                         return LONG_MAX;
4184                 }
4185
4186                 if (param->fp_time_margin == 0 ||
4187                     (*endptr && unit < param->fp_time_margin))
4188                         param->fp_time_margin = unit;
4189
4190                 t += val * unit;
4191         }
4192         if (*time < t) {
4193                 if (sign != 0)
4194                         str--;
4195                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4196                         progname, str);
4197                 return LONG_MAX;
4198         }
4199
4200         *set = *time - t;
4201
4202         return sign;
4203 }
4204
4205 static int str2quotaid(__u32 *id, const char *arg)
4206 {
4207         unsigned long int projid_tmp = 0;
4208         char *endptr = NULL;
4209
4210         projid_tmp = strtoul(arg, &endptr, 10);
4211         if (*endptr != '\0')
4212                 return -EINVAL;
4213         if (projid_tmp > UINT32_MAX ||
4214             (projid_tmp == ULONG_MAX && (errno == ERANGE)))
4215                 return -ERANGE;
4216
4217         *id = projid_tmp;
4218         return 0;
4219 }
4220
4221 static int name2uid(unsigned int *id, const char *name)
4222 {
4223         struct passwd *passwd;
4224
4225         passwd = getpwnam(name);
4226         if (!passwd)
4227                 return -ENOENT;
4228         *id = passwd->pw_uid;
4229
4230         return 0;
4231 }
4232
4233 static int name2gid(unsigned int *id, const char *name)
4234 {
4235         struct group *group;
4236
4237         group = getgrnam(name);
4238         if (!group)
4239                 return -ENOENT;
4240         *id = group->gr_gid;
4241
4242         return 0;
4243 }
4244
4245 static inline int name2projid(unsigned int *id, const char *name)
4246 {
4247         return -ENOTSUP;
4248 }
4249
4250 static int uid2name(char **name, unsigned int id)
4251 {
4252         struct passwd *passwd;
4253
4254         passwd = getpwuid(id);
4255         if (!passwd)
4256                 return -ENOENT;
4257         *name = passwd->pw_name;
4258
4259         return 0;
4260 }
4261
4262 static inline int gid2name(char **name, unsigned int id)
4263 {
4264         struct group *group;
4265
4266         group = getgrgid(id);
4267         if (!group)
4268                 return -ENOENT;
4269         *name = group->gr_name;
4270
4271         return 0;
4272 }
4273
4274 static int name2layout(__u32 *layout, char *name)
4275 {
4276         char *ptr, *layout_name;
4277
4278         *layout = 0;
4279         for (ptr = name; ; ptr = NULL) {
4280                 layout_name = strtok(ptr, ",");
4281                 if (!layout_name)
4282                         break;
4283                 if (strcmp(layout_name, "released") == 0)
4284                         *layout |= LOV_PATTERN_F_RELEASED;
4285                 else if (strcmp(layout_name, "raid0") == 0)
4286                         *layout |= LOV_PATTERN_RAID0;
4287                 else if (strcmp(layout_name, "mdt") == 0)
4288                         *layout |= LOV_PATTERN_MDT;
4289                 else if (strcmp(layout_name, "overstriping") == 0)
4290                         *layout |= LOV_PATTERN_OVERSTRIPING;
4291                 else
4292                         return -1;
4293         }
4294         return 0;
4295 }
4296
4297 static int lfs_find(int argc, char **argv)
4298 {
4299         int c, rc;
4300         int ret = 0;
4301         time_t t;
4302         struct find_param param = {
4303                 .fp_max_depth = -1,
4304                 .fp_quiet = 1,
4305                 .fp_time_margin = FP_DEFAULT_TIME_MARGIN,
4306         };
4307         struct option long_opts[] = {
4308         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4309         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4310         { .val = 'B',   .name = "btime",        .has_arg = required_argument },
4311         { .val = 'B',   .name = "Btime",        .has_arg = required_argument },
4312         { .val = LFS_COMP_COUNT_OPT,
4313                         .name = "comp-count",   .has_arg = required_argument },
4314         { .val = LFS_COMP_COUNT_OPT,
4315                         .name = "component-count",
4316                                                 .has_arg = required_argument },
4317         { .val = LFS_COMP_FLAGS_OPT,
4318                         .name = "comp-flags",   .has_arg = required_argument },
4319         { .val = LFS_COMP_FLAGS_OPT,
4320                         .name = "component-flags",
4321                                                 .has_arg = required_argument },
4322         { .val = LFS_COMP_START_OPT,
4323                         .name = "comp-start",   .has_arg = required_argument },
4324         { .val = LFS_COMP_START_OPT,
4325                         .name = "component-start",
4326                                                 .has_arg = required_argument },
4327         { .val = LFS_MIRROR_STATE_OPT,
4328                         .name = "mirror-state", .has_arg = required_argument },
4329         { .val = LFS_LAYOUT_FOREIGN_OPT,
4330                         .name = "foreign",      .has_arg = optional_argument},
4331         { .val = LFS_NEWERXY_OPT,
4332                         .name = "newer",        .has_arg = required_argument},
4333         { .val = LFS_NEWERXY_OPT,
4334                         .name = "neweraa",      .has_arg = required_argument},
4335         { .val = LFS_NEWERXY_OPT,
4336                         .name = "neweram",      .has_arg = required_argument},
4337         { .val = LFS_NEWERXY_OPT,
4338                         .name = "newerac",      .has_arg = required_argument},
4339         { .val = LFS_NEWERXY_OPT,
4340                         .name = "newerab",      .has_arg = required_argument},
4341         { .val = LFS_NEWERXY_OPT,
4342                         .name = "newerma",      .has_arg = required_argument},
4343         { .val = LFS_NEWERXY_OPT,
4344                         .name = "newermm",      .has_arg = required_argument},
4345         { .val = LFS_NEWERXY_OPT,
4346                         .name = "newermc",      .has_arg = required_argument},
4347         { .val = LFS_NEWERXY_OPT,
4348                         .name = "newermb",      .has_arg = required_argument},
4349         { .val = LFS_NEWERXY_OPT,
4350                         .name = "newerca",      .has_arg = required_argument},
4351         { .val = LFS_NEWERXY_OPT,
4352                         .name = "newercm",      .has_arg = required_argument},
4353         { .val = LFS_NEWERXY_OPT,
4354                         .name = "newercc",      .has_arg = required_argument},
4355         { .val = LFS_NEWERXY_OPT,
4356                         .name = "newercb",      .has_arg = required_argument},
4357         { .val = LFS_NEWERXY_OPT,
4358                         .name = "newerba",      .has_arg = required_argument},
4359         { .val = LFS_NEWERXY_OPT,
4360                         .name = "newerbm",      .has_arg = required_argument},
4361         { .val = LFS_NEWERXY_OPT,
4362                         .name = "newerbc",      .has_arg = required_argument},
4363         { .val = LFS_NEWERXY_OPT,
4364                         .name = "newerbb",      .has_arg = required_argument},
4365         { .val = LFS_NEWERXY_OPT,
4366                         .name = "newerBa",      .has_arg = required_argument},
4367         { .val = LFS_NEWERXY_OPT,
4368                         .name = "newerBm",      .has_arg = required_argument},
4369         { .val = LFS_NEWERXY_OPT,
4370                         .name = "newerBc",      .has_arg = required_argument},
4371         { .val = LFS_NEWERXY_OPT,
4372                         .name = "newerBB",      .has_arg = required_argument},
4373         { .val = LFS_NEWERXY_OPT,
4374                         .name = "newerat",      .has_arg = required_argument},
4375         { .val = LFS_NEWERXY_OPT,
4376                         .name = "newermt",      .has_arg = required_argument},
4377         { .val = LFS_NEWERXY_OPT,
4378                         .name = "newerct",      .has_arg = required_argument},
4379         { .val = LFS_NEWERXY_OPT,
4380                         .name = "newerbt",      .has_arg = required_argument},
4381         { .val = LFS_NEWERXY_OPT,
4382                         .name = "newerBt",      .has_arg = required_argument},
4383         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4384         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4385         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4386 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4387         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4388         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4389         { .val = 'E',   .name = "component-end",
4390                                                 .has_arg = required_argument },
4391 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4392         { .val = LFS_LAYOUT_FOREIGN_OPT,
4393                         .name = "foreign",      .has_arg = optional_argument},
4394         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4395         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4396         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4397         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4398         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4399 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4400         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4401         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4402         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4403         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4404         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4405         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4406         { .val = 'n',   .name = "name",         .has_arg = required_argument },
4407         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
4408 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
4409         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4410         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4411         /* no short option for pool yet, can be 'p' after 2.18 */
4412         { .val = LFS_POOL_OPT,
4413                         .name = "pool",         .has_arg = required_argument },
4414         { .val = '0',   .name = "print0",       .has_arg = no_argument },
4415         { .val = 'P',   .name = "print",        .has_arg = no_argument },
4416         { .val = LFS_PROJID_OPT,
4417                         .name = "projid",       .has_arg = required_argument },
4418 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
4419 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
4420 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
4421         { .val = 's',   .name = "size",         .has_arg = required_argument },
4422         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
4423         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
4424         { .val = 't',   .name = "type",         .has_arg = required_argument },
4425         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4426         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
4427         { .val = 'U',   .name = "user",         .has_arg = required_argument },
4428         { .val = 'z',   .name = "extension-size",
4429                                                 .has_arg = required_argument },
4430         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
4431 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
4432 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
4433         { .name = NULL } };
4434         int optidx = 0;
4435         int pathstart = -1;
4436         int pathend = -1;
4437         int pathbad = -1;
4438         int neg_opt = 0;
4439         time_t *xtime;
4440         int *xsign;
4441         int isoption;
4442         char *endptr;
4443
4444         time(&t);
4445
4446         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
4447         while ((c = getopt_long_only(argc, argv,
4448                 "-0A:b:B:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:vz:",
4449                 long_opts, &optidx)) >= 0) {
4450                 xtime = NULL;
4451                 xsign = NULL;
4452                 if (neg_opt)
4453                         --neg_opt;
4454                 /* '!' is part of option */
4455                 /*
4456                  * when getopt_long_only() finds a string which is not
4457                  * an option nor a known option argument it returns 1
4458                  * in that case if we already have found pathstart and pathend
4459                  * (i.e. we have the list of pathnames),
4460                  * the only supported value is "!"
4461                  */
4462                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4463                 if (!isoption && pathend != -1) {
4464                         fprintf(stderr,
4465                                 "err: %s: filename|dirname must either precede options or follow options\n",
4466                                 argv[0]);
4467                         ret = CMD_HELP;
4468                         goto err;
4469                 }
4470                 if (!isoption && pathstart == -1)
4471                         pathstart = optind - 1;
4472                 if (isoption && pathstart != -1 && pathend == -1)
4473                         pathend = optind - 2;
4474                 switch (c) {
4475                 case 0:
4476                         /* Long options. */
4477                         break;
4478                 case 1:
4479                         /*
4480                          * unknown; opt is "!" or path component,
4481                          * checking done above.
4482                          */
4483                         if (strcmp(optarg, "!") == 0)
4484                                 neg_opt = 2;
4485                         break;
4486                 case 'A':
4487                         xtime = &param.fp_atime;
4488                         xsign = &param.fp_asign;
4489                         param.fp_exclude_atime = !!neg_opt;
4490                         /* no break, this falls through to 'B' for btime */
4491                 case 'B':
4492                         if (c == 'B') {
4493                                 xtime = &param.fp_btime;
4494                                 xsign = &param.fp_bsign;
4495                                 param.fp_exclude_btime = !!neg_opt;
4496                         }
4497                         /* no break, this falls through to 'C' for ctime */
4498                 case 'C':
4499                         if (c == 'C') {
4500                                 xtime = &param.fp_ctime;
4501                                 xsign = &param.fp_csign;
4502                                 param.fp_exclude_ctime = !!neg_opt;
4503                         }
4504                         /* no break, this falls through to 'M' for mtime */
4505                 case 'M':
4506                         if (c == 'M') {
4507                                 xtime = &param.fp_mtime;
4508                                 xsign = &param.fp_msign;
4509                                 param.fp_exclude_mtime = !!neg_opt;
4510                         }
4511                         rc = set_time(&param, &t, xtime, optarg);
4512                         if (rc == LONG_MAX) {
4513                                 ret = -1;
4514                                 goto err;
4515                         }
4516                         if (rc)
4517                                 *xsign = rc;
4518                         break;
4519                 case 'b':
4520                         if (optarg[0] == '+') {
4521                                 param.fp_blocks_sign = -1;
4522                                 optarg++;
4523                         } else if (optarg[0] == '-') {
4524                                 param.fp_blocks_sign =  1;
4525                                 optarg++;
4526                         }
4527
4528                         param.fp_blocks_units = 1024;
4529                         ret = llapi_parse_size(optarg, &param.fp_blocks,
4530                                                &param.fp_blocks_units, 0);
4531                         if (ret) {
4532                                 fprintf(stderr, "error: bad blocks '%s'\n",
4533                                         optarg);
4534                                 goto err;
4535                         }
4536                         param.fp_check_blocks = 1;
4537                         param.fp_exclude_blocks = !!neg_opt;
4538                         break;
4539                 case LFS_COMP_COUNT_OPT:
4540                         if (optarg[0] == '+') {
4541                                 param.fp_comp_count_sign = -1;
4542                                 optarg++;
4543                         } else if (optarg[0] == '-') {
4544                                 param.fp_comp_count_sign =  1;
4545                                 optarg++;
4546                         }
4547
4548                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
4549                         if (*endptr != '\0') {
4550                                 fprintf(stderr,
4551                                         "error: bad component count '%s'\n",
4552                                         optarg);
4553                                 goto err;
4554                         }
4555                         param.fp_check_comp_count = 1;
4556                         param.fp_exclude_comp_count = !!neg_opt;
4557                         break;
4558                 case LFS_COMP_FLAGS_OPT:
4559                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
4560                                             &param.fp_comp_neg_flags);
4561                         if (rc) {
4562                                 fprintf(stderr,
4563                                         "error: bad component flags '%s'\n",
4564                                         optarg);
4565                                 goto err;
4566                         }
4567                         param.fp_check_comp_flags = 1;
4568                         if (neg_opt) {
4569                                 __u32 flags = param.fp_comp_neg_flags;
4570
4571                                 param.fp_comp_neg_flags = param.fp_comp_flags;
4572                                 param.fp_comp_flags = flags;
4573                         }
4574                         break;
4575                 case LFS_COMP_START_OPT:
4576                         if (optarg[0] == '+') {
4577                                 param.fp_comp_start_sign = -1;
4578                                 optarg++;
4579                         } else if (optarg[0] == '-') {
4580                                 param.fp_comp_start_sign =  1;
4581                                 optarg++;
4582                         }
4583
4584                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
4585                                               &param.fp_comp_start_units, 0);
4586                         if (rc) {
4587                                 fprintf(stderr,
4588                                         "error: bad component start '%s'\n",
4589                                         optarg);
4590                                 goto err;
4591                         }
4592                         param.fp_check_comp_start = 1;
4593                         param.fp_exclude_comp_start = !!neg_opt;
4594                         break;
4595                 case LFS_MIRROR_STATE_OPT:
4596                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
4597                                               &param.fp_mirror_neg_state);
4598                         if (rc) {
4599                                 fprintf(stderr,
4600                                         "error: bad mirrored file state '%s'\n",
4601                                         optarg);
4602                                 goto err;
4603                         }
4604                         param.fp_check_mirror_state = 1;
4605                         if (neg_opt) {
4606                                 __u16 state = param.fp_mirror_neg_state;
4607
4608                                 param.fp_mirror_neg_state =
4609                                         param.fp_mirror_state;
4610                                 param.fp_mirror_state = state;
4611                         }
4612                         break;
4613                 case 'c':
4614                         if (optarg[0] == '+') {
4615                                 param.fp_stripe_count_sign = -1;
4616                                 optarg++;
4617                         } else if (optarg[0] == '-') {
4618                                 param.fp_stripe_count_sign =  1;
4619                                 optarg++;
4620                         }
4621
4622                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
4623                         if (*endptr != '\0') {
4624                                 fprintf(stderr,
4625                                         "error: bad stripe_count '%s'\n",
4626                                         optarg);
4627                                 ret = -1;
4628                                 goto err;
4629                         }
4630                         param.fp_check_stripe_count = 1;
4631                         param.fp_exclude_stripe_count = !!neg_opt;
4632                         break;
4633                 case 'D':
4634                         param.fp_max_depth = strtol(optarg, 0, 0);
4635                         break;
4636                 case 'E':
4637                         if (optarg[0] == '+') {
4638                                 param.fp_comp_end_sign = -1;
4639                                 optarg++;
4640                         } else if (optarg[0] == '-') {
4641                                 param.fp_comp_end_sign =  1;
4642                                 optarg++;
4643                         }
4644
4645                         if (arg_is_eof(optarg)) {
4646                                 param.fp_comp_end = LUSTRE_EOF;
4647                                 param.fp_comp_end_units = 1;
4648                                 rc = 0;
4649                         } else {
4650                                 rc = llapi_parse_size(optarg,
4651                                                 &param.fp_comp_end,
4652                                                 &param.fp_comp_end_units, 0);
4653                         }
4654                         if (rc) {
4655                                 fprintf(stderr,
4656                                         "error: bad component end '%s'\n",
4657                                         optarg);
4658                                 goto err;
4659                         }
4660                         param.fp_check_comp_end = 1;
4661                         param.fp_exclude_comp_end = !!neg_opt;
4662                         break;
4663                 case LFS_LAYOUT_FOREIGN_OPT: {
4664                         /* all types by default */
4665                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
4666
4667                         if (optarg) {
4668                                 /* check pure numeric */
4669                                 type = strtoul(optarg, &endptr, 0);
4670                                 if (*endptr) {
4671                                         /* check name */
4672                                         type = check_foreign_type_name(optarg);
4673                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
4674                                                 fprintf(stderr,
4675                                                         "%s %s: unknown foreign type '%s'\n",
4676                                                         progname, argv[0],
4677                                                         optarg);
4678                                                 return CMD_HELP;
4679                                         }
4680                                 }
4681                         }
4682                         param.fp_foreign_type = type;
4683                         param.fp_check_foreign = 1;
4684                         param.fp_exclude_foreign = !!neg_opt;
4685                         break;
4686                 }
4687                 case LFS_NEWERXY_OPT: {
4688                         char x = 'm';
4689                         char y = 'm';
4690                         int xidx;
4691                         int negidx;
4692                         time_t *newery;
4693                         time_t ref = time(NULL);
4694
4695                         /* no need to check bad options, they won't get here */
4696                         if (strlen(long_opts[optidx].name) == 7) {
4697                                 x = long_opts[optidx].name[5];
4698                                 y = long_opts[optidx].name[6];
4699                         }
4700
4701                         if (y == 't') {
4702                                 static const char *const fmts[] = {
4703                                         "%Y-%m-%d %H:%M:%S",
4704                                         "%Y-%m-%d %H:%M",
4705                                         "%Y-%m-%d",
4706                                         "%H:%M:%S", /* sometime today */
4707                                         "%H:%M",
4708                                         "@%s",
4709                                         "%s",
4710                                         NULL };
4711                                 struct tm tm;
4712                                 bool found = false;
4713                                 int i;
4714
4715                                 for (i = 0; fmts[i] != NULL; i++) {
4716                                         char *ptr;
4717
4718                                         /* Init for times relative to today */
4719                                         if (strncmp(fmts[i], "%H", 2) == 0)
4720                                                 localtime_r(&ref, &tm);
4721                                         else
4722                                                 memset(&tm, 0, sizeof(tm));
4723                                         ptr = strptime(optarg, fmts[i], &tm);
4724                                         /* Skip spaces */
4725                                         while (ptr && isspace(*ptr))
4726                                                 ptr++;
4727                                         if (ptr == optarg + strlen(optarg)) {
4728                                                 found = true;
4729                                                 break;
4730                                         }
4731                                 }
4732
4733                                 if (!found) {
4734                                         fprintf(stderr,
4735                                                 "%s: invalid time '%s'\n",
4736                                                 progname, optarg);
4737                                         fprintf(stderr,
4738                                                 "supported formats are:\n  ");
4739                                         for (i = 0; fmts[i] != NULL; i++)
4740                                                 fprintf(stderr, "'%s', ",
4741                                                         fmts[i]);
4742                                         fprintf(stderr, "\n");
4743                                         ret = -EINVAL;
4744                                         goto err;
4745                                 }
4746
4747                                 ref = mktime(&tm);
4748                         } else if (y == 'b' || y == 'B') {
4749                                 lstatx_t stx;
4750
4751                                 rc = llapi_get_lum_file(optarg, NULL, &stx,
4752                                                         NULL, 0);
4753                                 if (rc || !(stx.stx_mask & STATX_BTIME)) {
4754                                         if (!(stx.stx_mask & STATX_BTIME))
4755                                                 ret = -EOPNOTSUPP;
4756                                         else
4757                                                 ret = -errno;
4758                                         fprintf(stderr,
4759                                                 "%s: get btime failed '%s': %s\n",
4760                                                 progname, optarg,
4761                                                 strerror(-ret));
4762                                         goto err;
4763                                 }
4764
4765                                 ref = stx.stx_btime.tv_sec;
4766                         } else {
4767                                 struct stat statbuf;
4768
4769                                 if (stat(optarg, &statbuf) < 0) {
4770                                         fprintf(stderr,
4771                                                 "%s: cannot stat file '%s': %s\n",
4772                                                 progname, optarg,
4773                                                 strerror(errno));
4774                                         ret = -errno;
4775                                         goto err;
4776                                 }
4777
4778                                 switch (y) {
4779                                 case 'a':
4780                                         ref = statbuf.st_atime;
4781                                         break;
4782                                 case 'm':
4783                                         ref = statbuf.st_mtime;
4784                                         break;
4785                                 case 'c':
4786                                         ref = statbuf.st_ctime;
4787                                         break;
4788                                 default:
4789                                         fprintf(stderr,
4790                                                 "%s: invalid Y argument: '%c'\n",
4791                                                 progname, x);
4792                                         ret = -EINVAL;
4793                                         goto err;
4794                                 }
4795                         }
4796
4797                         switch (x) {
4798                         case 'a':
4799                                 xidx = NEWERXY_ATIME;
4800                                 break;
4801                         case 'm':
4802                                 xidx = NEWERXY_MTIME;
4803                                 break;
4804                         case 'c':
4805                                 xidx = NEWERXY_CTIME;
4806                                 break;
4807                         case 'b':
4808                         case 'B':
4809                                 xidx = NEWERXY_BTIME;
4810                                 break;
4811                         default:
4812                                 fprintf(stderr,
4813                                         "%s: invalid X argument: '%c'\n",
4814                                         progname, x);
4815                                 ret = -EINVAL;
4816                                 goto err;
4817                         }
4818
4819                         negidx = !!neg_opt;
4820                         newery = &param.fp_newery[xidx][negidx];
4821
4822                         if (*newery == 0) {
4823                                 *newery = ref;
4824                         } else {
4825                                 if (negidx)
4826                                         *newery = *newery > ref ? ref : *newery;
4827                                 else
4828                                         *newery = *newery > ref ? *newery : ref;
4829                         }
4830                         param.fp_newerxy = 1;
4831                         break;
4832                 }
4833                 case 'g':
4834                 case 'G':
4835                         rc = name2gid(&param.fp_gid, optarg);
4836                         if (rc) {
4837                                 if (str2quotaid(&param.fp_gid, optarg)) {
4838                                         fprintf(stderr,
4839                                                 "Group/GID: %s cannot be found.\n",
4840                                                 optarg);
4841                                         ret = -1;
4842                                         goto err;
4843                                 }
4844                         }
4845                         param.fp_exclude_gid = !!neg_opt;
4846                         param.fp_check_gid = 1;
4847                         break;
4848                 case 'H':
4849                         param.fp_hash_type = check_hashtype(optarg);
4850                         if (param.fp_hash_type == 0) {
4851                                 fprintf(stderr, "error: bad hash_type '%s'\n",
4852                                         optarg);
4853                                 ret = -1;
4854                                 goto err;
4855                         }
4856                         param.fp_check_hash_type = 1;
4857                         param.fp_exclude_hash_type = !!neg_opt;
4858                         break;
4859                 case 'l':
4860                         param.fp_lazy = 1;
4861                         break;
4862                 case 'L':
4863                         ret = name2layout(&param.fp_layout, optarg);
4864                         if (ret)
4865                                 goto err;
4866                         param.fp_exclude_layout = !!neg_opt;
4867                         param.fp_check_layout = 1;
4868                         break;
4869                 case 'u':
4870                 case 'U':
4871                         rc = name2uid(&param.fp_uid, optarg);
4872                         if (rc) {
4873                                 if (str2quotaid(&param.fp_uid, optarg)) {
4874                                         fprintf(stderr,
4875                                                 "User/UID: %s cannot be found.\n",
4876                                                 optarg);
4877                                         ret = -1;
4878                                         goto err;
4879                                 }
4880                         }
4881                         param.fp_exclude_uid = !!neg_opt;
4882                         param.fp_check_uid = 1;
4883                         break;
4884                 case 'n':
4885                         param.fp_pattern = (char *)optarg;
4886                         param.fp_exclude_pattern = !!neg_opt;
4887                         break;
4888                 case 'N':
4889                         if (optarg[0] == '+') {
4890                                 param.fp_mirror_count_sign = -1;
4891                                 optarg++;
4892                         } else if (optarg[0] == '-') {
4893                                 param.fp_mirror_count_sign =  1;
4894                                 optarg++;
4895                         }
4896
4897                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
4898                         if (*endptr != '\0') {
4899                                 fprintf(stderr,
4900                                         "error: bad mirror count '%s'\n",
4901                                         optarg);
4902                                 goto err;
4903                         }
4904                         param.fp_check_mirror_count = 1;
4905                         param.fp_exclude_mirror_count = !!neg_opt;
4906                         break;
4907                 case 'm':
4908                 case 'i':
4909                 case 'O': {
4910                         char *buf, *token, *next, *p;
4911                         int len = 1;
4912                         void *tmp;
4913
4914                         buf = strdup(optarg);
4915                         if (!buf) {
4916                                 ret = -ENOMEM;
4917                                 goto err;
4918                         }
4919
4920                         param.fp_exclude_obd = !!neg_opt;
4921
4922                         token = buf;
4923                         while (token && *token) {
4924                                 token = strchr(token, ',');
4925                                 if (token) {
4926                                         len++;
4927                                         token++;
4928                                 }
4929                         }
4930                         if (c == 'm') {
4931                                 param.fp_exclude_mdt = !!neg_opt;
4932                                 param.fp_num_alloc_mdts += len;
4933                                 tmp = realloc(param.fp_mdt_uuid,
4934                                               param.fp_num_alloc_mdts *
4935                                               sizeof(*param.fp_mdt_uuid));
4936                                 if (!tmp) {
4937                                         ret = -ENOMEM;
4938                                         goto err_free;
4939                                 }
4940
4941                                 param.fp_mdt_uuid = tmp;
4942                         } else {
4943                                 param.fp_exclude_obd = !!neg_opt;
4944                                 param.fp_num_alloc_obds += len;
4945                                 tmp = realloc(param.fp_obd_uuid,
4946                                               param.fp_num_alloc_obds *
4947                                               sizeof(*param.fp_obd_uuid));
4948                                 if (!tmp) {
4949                                         ret = -ENOMEM;
4950                                         goto err_free;
4951                                 }
4952
4953                                 param.fp_obd_uuid = tmp;
4954                         }
4955                         for (token = buf; token && *token; token = next) {
4956                                 struct obd_uuid *puuid;
4957
4958                                 if (c == 'm') {
4959                                         puuid =
4960                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
4961                                 } else {
4962                                         puuid =
4963                                         &param.fp_obd_uuid[param.fp_num_obds++];
4964                                 }
4965                                 p = strchr(token, ',');
4966                                 next = 0;
4967                                 if (p) {
4968                                         *p = 0;
4969                                         next = p+1;
4970                                 }
4971
4972                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
4973                                         ret = -E2BIG;
4974                                         goto err_free;
4975                                 }
4976
4977                                 strncpy(puuid->uuid, token,
4978                                         sizeof(puuid->uuid));
4979                         }
4980 err_free:
4981                         if (buf)
4982                                 free(buf);
4983                         break;
4984                 }
4985 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
4986                 case 'p':
4987 #endif
4988                 case LFS_POOL_OPT:
4989                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
4990                                 fprintf(stderr,
4991                                         "Pool name %s is too long (max %d)\n",
4992                                         optarg, LOV_MAXPOOLNAME);
4993                                 ret = -1;
4994                                 goto err;
4995                         }
4996                         /*
4997                          * We do check for empty pool because empty pool
4998                          * is used to find V1 LOV attributes
4999                          */
5000                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
5001                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
5002                         param.fp_exclude_pool = !!neg_opt;
5003                         param.fp_check_pool = 1;
5004                         break;
5005 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
5006                 case 'p': /* want this for --pool, to match getstripe/find */
5007                         fprintf(stderr,
5008                                 "warning: -p deprecated, use --print0 or -0\n");
5009 #endif
5010                 case '0':
5011                         param.fp_zero_end = 1;
5012                         break;
5013                 case 'P': /* we always print, this option is a no-op */
5014                         break;
5015                 case LFS_PROJID_OPT:
5016                         rc = name2projid(&param.fp_projid, optarg);
5017                         if (rc) {
5018                                 if (str2quotaid(&param.fp_projid, optarg)) {
5019                                         fprintf(stderr,
5020                                                 "Invalid project ID: %s\n",
5021                                                 optarg);
5022                                         ret = -1;
5023                                         goto err;
5024                                 }
5025                         }
5026                         param.fp_exclude_projid = !!neg_opt;
5027                         param.fp_check_projid = 1;
5028                         break;
5029                 case 's':
5030                         if (optarg[0] == '+') {
5031                                 param.fp_size_sign = -1;
5032                                 optarg++;
5033                         } else if (optarg[0] == '-') {
5034                                 param.fp_size_sign =  1;
5035                                 optarg++;
5036                         }
5037
5038                         ret = llapi_parse_size(optarg, &param.fp_size,
5039                                                &param.fp_size_units, 0);
5040                         if (ret) {
5041                                 fprintf(stderr, "error: bad file size '%s'\n",
5042                                         optarg);
5043                                 goto err;
5044                         }
5045                         param.fp_check_size = 1;
5046                         param.fp_exclude_size = !!neg_opt;
5047                         break;
5048                 case 'S':
5049                         if (optarg[0] == '+') {
5050                                 param.fp_stripe_size_sign = -1;
5051                                 optarg++;
5052                         } else if (optarg[0] == '-') {
5053                                 param.fp_stripe_size_sign =  1;
5054                                 optarg++;
5055                         }
5056
5057                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
5058                                                &param.fp_stripe_size_units, 0);
5059                         if (ret) {
5060                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
5061                                         optarg);
5062                                 goto err;
5063                         }
5064                         param.fp_check_stripe_size = 1;
5065                         param.fp_exclude_stripe_size = !!neg_opt;
5066                         break;
5067                 case 't':
5068                         param.fp_exclude_type = !!neg_opt;
5069                         switch (optarg[0]) {
5070                         case 'b':
5071                                 param.fp_type = S_IFBLK;
5072                                 break;
5073                         case 'c':
5074                                 param.fp_type = S_IFCHR;
5075                                 break;
5076                         case 'd':
5077                                 param.fp_type = S_IFDIR;
5078                                 break;
5079                         case 'f':
5080                                 param.fp_type = S_IFREG;
5081                                 break;
5082                         case 'l':
5083                                 param.fp_type = S_IFLNK;
5084                                 break;
5085                         case 'p':
5086                                 param.fp_type = S_IFIFO;
5087                                 break;
5088                         case 's':
5089                                 param.fp_type = S_IFSOCK;
5090                                 break;
5091                         default:
5092                                 fprintf(stderr, "error: %s: bad type '%s'\n",
5093                                         argv[0], optarg);
5094                                 ret = CMD_HELP;
5095                                 goto err;
5096                         };
5097                         break;
5098                 case 'T':
5099                         if (optarg[0] == '+') {
5100                                 param.fp_mdt_count_sign = -1;
5101                                 optarg++;
5102                         } else if (optarg[0] == '-') {
5103                                 param.fp_mdt_count_sign =  1;
5104                                 optarg++;
5105                         }
5106
5107                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
5108                         if (*endptr != '\0') {
5109                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
5110                                         optarg);
5111                                 ret = -1;
5112                                 goto err;
5113                         }
5114                         param.fp_check_mdt_count = 1;
5115                         param.fp_exclude_mdt_count = !!neg_opt;
5116                         break;
5117                 case 'z':
5118                         if (optarg[0] == '+') {
5119                                 param.fp_ext_size_sign = -1;
5120                                 optarg++;
5121                         } else if (optarg[0] == '-') {
5122                                 param.fp_ext_size_sign =  1;
5123                                 optarg++;
5124                         }
5125
5126                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
5127                                                &param.fp_ext_size_units, 0);
5128                         if (ret) {
5129                                 fprintf(stderr, "error: bad ext-size '%s'\n",
5130                                         optarg);
5131                                 goto err;
5132                         }
5133                         param.fp_ext_size /= SEL_UNIT_SIZE;
5134                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
5135                         param.fp_check_ext_size = 1;
5136                         param.fp_exclude_ext_size = !!neg_opt;
5137                         break;
5138                 default:
5139                         ret = CMD_HELP;
5140                         goto err;
5141                 };
5142         }
5143
5144         if (pathstart == -1) {
5145                 fprintf(stderr, "error: %s: no filename|pathname\n",
5146                         argv[0]);
5147                 ret = CMD_HELP;
5148                 goto err;
5149         } else if (pathend == -1) {
5150                 /* no options */
5151                 pathend = argc;
5152         }
5153
5154         do {
5155                 rc = llapi_find(argv[pathstart], &param);
5156                 if (rc && !ret) {
5157                         ret = rc;
5158                         pathbad = pathstart;
5159                 }
5160         } while (++pathstart < pathend);
5161
5162         if (ret)
5163                 fprintf(stderr, "%s: failed for '%s': %s\n",
5164                         progname, argv[pathbad], strerror(-rc));
5165
5166 err:
5167         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
5168                 free(param.fp_obd_uuid);
5169
5170         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
5171                 free(param.fp_mdt_uuid);
5172
5173         return ret;
5174 }
5175
5176 static int lfs_getstripe_internal(int argc, char **argv,
5177                                   struct find_param *param)
5178 {
5179         struct option long_opts[] = {
5180 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
5181 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
5182 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
5183 /* find { .val = 'B',   .name = "Btime",        .has_arg = required_argument }*/
5184         { .val = LFS_COMP_COUNT_OPT,
5185                         .name = "comp-count",   .has_arg = no_argument },
5186         { .val = LFS_COMP_COUNT_OPT,
5187                 .name = "component-count",      .has_arg = no_argument },
5188         { .val = LFS_COMP_FLAGS_OPT,
5189                         .name = "comp-flags",   .has_arg = optional_argument },
5190         { .val = LFS_COMP_FLAGS_OPT,
5191                 .name = "component-flags",      .has_arg = optional_argument },
5192         { .val = LFS_COMP_START_OPT,
5193                         .name = "comp-start",   .has_arg = optional_argument },
5194         { .val = LFS_COMP_START_OPT,
5195                 .name = "component-start",      .has_arg = optional_argument },
5196         { .val = LFS_MIRROR_INDEX_OPT,
5197                 .name = "mirror-index",         .has_arg = required_argument },
5198         { .val = LFS_MIRROR_ID_OPT,
5199                 .name = "mirror-id",            .has_arg = required_argument },
5200         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
5201         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
5202 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
5203         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
5204         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5205         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
5206         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
5207         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
5208         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
5209 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
5210 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
5211         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
5212         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
5213         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
5214         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
5215 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5216         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
5217         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
5218         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5219         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
5220 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
5221 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
5222         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
5223         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5224         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5225         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
5226 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
5227         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
5228         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5229         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
5230         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
5231         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
5232 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
5233 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
5234 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
5235 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
5236         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5237         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5238         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
5239         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
5240         { .name = NULL } };
5241         int c, rc;
5242         int neg_opt = 0;
5243         int pathstart = -1, pathend = -1;
5244         int isoption;
5245         char *end, *tmp;
5246
5247         while ((c = getopt_long(argc, argv,
5248                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5249                         long_opts, NULL)) != -1) {
5250                 if (neg_opt)
5251                         --neg_opt;
5252
5253                 /* '!' is part of option */
5254                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5255                 if (!isoption && pathend != -1) {
5256                         fprintf(stderr,
5257                                 "error: %s: filename|dirname must either precede options or follow options\n",
5258                                 argv[0]);
5259                         return CMD_HELP;
5260                 }
5261                 if (!isoption && pathstart == -1)
5262                         pathstart = optind - 1;
5263                 if (isoption && pathstart != -1 && pathend == -1)
5264                         pathend = optind - 2;
5265
5266                 switch (c) {
5267                 case 1:
5268                         /* unknown: opt is "!" */
5269                         if (strcmp(optarg, "!") == 0)
5270                                 neg_opt = 2;
5271                         break;
5272                 case 'c':
5273                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5274                                 param->fp_verbose |= VERBOSE_COUNT;
5275                                 param->fp_max_depth = 0;
5276                         }
5277                         break;
5278                 case LFS_COMP_COUNT_OPT:
5279                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5280                         param->fp_max_depth = 0;
5281                         break;
5282                 case LFS_COMP_FLAGS_OPT:
5283                         if (optarg) {
5284                                 rc = comp_str2flags(optarg,
5285                                                     &param->fp_comp_flags,
5286                                                     &param->fp_comp_neg_flags);
5287                                 if (rc != 0) {
5288                                         fprintf(stderr,
5289                                                 "error: %s bad component flags '%s'.\n",
5290                                                 argv[0], optarg);
5291                                         return CMD_HELP;
5292                                 }
5293                                 param->fp_check_comp_flags = 1;
5294                         } else {
5295                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5296                                 param->fp_max_depth = 0;
5297                         }
5298                         break;
5299                 case LFS_COMP_START_OPT:
5300                         if (optarg) {
5301                                 tmp = optarg;
5302                                 if (tmp[0] == '+') {
5303                                         param->fp_comp_start_sign = -1;
5304                                         tmp++;
5305                                 } else if (tmp[0] == '-') {
5306                                         param->fp_comp_start_sign = 1;
5307                                         tmp++;
5308                                 }
5309                                 rc = llapi_parse_size(tmp,
5310                                                 &param->fp_comp_start,
5311                                                 &param->fp_comp_start_units, 0);
5312                                 if (rc != 0) {
5313                                         fprintf(stderr,
5314                                                 "error: %s bad component start '%s'.\n",
5315                                                 argv[0], tmp);
5316                                         return CMD_HELP;
5317                                 }
5318                                 param->fp_check_comp_start = 1;
5319                         } else {
5320                                 param->fp_verbose |= VERBOSE_COMP_START;
5321                                 param->fp_max_depth = 0;
5322                         }
5323                         break;
5324                 case LFS_MIRROR_INDEX_OPT:
5325                         if (optarg[0] == '+') {
5326                                 param->fp_mirror_index_sign = -1;
5327                                 optarg++;
5328                         } else if (optarg[0] == '-') {
5329                                 param->fp_mirror_index_sign = 1;
5330                                 optarg++;
5331                         }
5332
5333                         param->fp_mirror_index = strtoul(optarg, &end, 0);
5334                         if (*end != '\0' || (param->fp_mirror_index == 0 &&
5335                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5336                                 fprintf(stderr,
5337                                         "%s %s: invalid mirror index '%s'\n",
5338                                         progname, argv[0], optarg);
5339                                 return CMD_HELP;
5340                         }
5341                         if (param->fp_mirror_id != 0) {
5342                                 fprintf(stderr,
5343                                         "%s %s: can't specify both mirror index and mirror ID\n",
5344                                         progname, argv[0]);
5345                                 return CMD_HELP;
5346                         }
5347                         param->fp_check_mirror_index = 1;
5348                         param->fp_exclude_mirror_index = !!neg_opt;
5349                         break;
5350                 case LFS_MIRROR_ID_OPT:
5351                         if (optarg[0] == '+') {
5352                                 param->fp_mirror_id_sign = -1;
5353                                 optarg++;
5354                         } else if (optarg[0] == '-') {
5355                                 param->fp_mirror_id_sign = 1;
5356                                 optarg++;
5357                         }
5358
5359                         param->fp_mirror_id = strtoul(optarg, &end, 0);
5360                         if (*end != '\0' || (param->fp_mirror_id == 0 &&
5361                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
5362                                 fprintf(stderr,
5363                                         "%s %s: invalid mirror ID '%s'\n",
5364                                         progname, argv[0], optarg);
5365                                 return CMD_HELP;
5366                         }
5367                         if (param->fp_mirror_index != 0) {
5368                                 fprintf(stderr,
5369                                         "%s %s: can't specify both mirror index and mirror ID\n",
5370                                         progname, argv[0]);
5371                                 return CMD_HELP;
5372                         }
5373                         param->fp_check_mirror_id = 1;
5374                         param->fp_exclude_mirror_id = !!neg_opt;
5375                         break;
5376                 case 'd':
5377                         param->fp_max_depth = 0;
5378                         break;
5379                 case 'D':
5380                         param->fp_get_default_lmv = 1;
5381                         break;
5382                 case 'E':
5383                         if (optarg) {
5384                                 tmp = optarg;
5385                                 if (tmp[0] == '+') {
5386                                         param->fp_comp_end_sign = -1;
5387                                         tmp++;
5388                                 } else if (tmp[0] == '-') {
5389                                         param->fp_comp_end_sign = 1;
5390                                         tmp++;
5391                                 }
5392
5393                                 if (arg_is_eof(tmp)) {
5394                                         param->fp_comp_end = LUSTRE_EOF;
5395                                         param->fp_comp_end_units = 1;
5396                                         rc = 0;
5397                                 } else {
5398                                         rc = llapi_parse_size(tmp,
5399                                                 &param->fp_comp_end,
5400                                                 &param->fp_comp_end_units, 0);
5401                                 }
5402                                 if (rc != 0) {
5403                                         fprintf(stderr,
5404                                                 "error: %s bad component end '%s'.\n",
5405                                                 argv[0], tmp);
5406                                         return CMD_HELP;
5407                                 }
5408                                 param->fp_check_comp_end = 1;
5409                         } else {
5410                                 param->fp_verbose |= VERBOSE_COMP_END;
5411                                 param->fp_max_depth = 0;
5412                         }
5413                         break;
5414                 case 'F':
5415                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5416                                 param->fp_verbose |= VERBOSE_DFID;
5417                                 param->fp_max_depth = 0;
5418                         }
5419                         break;
5420                 case 'g':
5421                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5422                                 param->fp_verbose |= VERBOSE_GENERATION;
5423                                 param->fp_max_depth = 0;
5424                         }
5425                         break;
5426                 case 'i':
5427                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5428                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
5429                                 param->fp_max_depth = 0;
5430                         }
5431                         break;
5432                 case 'I':
5433                         if (optarg) {
5434                                 param->fp_comp_id = strtoul(optarg, &end, 0);
5435                                 if (*end != '\0' || param->fp_comp_id == 0 ||
5436                                     param->fp_comp_id > LCME_ID_MAX) {
5437                                         fprintf(stderr,
5438                                                 "error: %s bad component id '%s'\n",
5439                                                 argv[0], optarg);
5440                                         return CMD_HELP;
5441                                 }
5442                                 param->fp_check_comp_id = 1;
5443                         } else {
5444                                 param->fp_max_depth = 0;
5445                                 param->fp_verbose |= VERBOSE_COMP_ID;
5446                         }
5447                         break;
5448                 case 'L':
5449                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5450                                 param->fp_verbose |= VERBOSE_PATTERN;
5451                                 param->fp_max_depth = 0;
5452                         }
5453                         break;
5454 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5455                 case 'M':
5456                         fprintf(stderr,
5457                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
5458 #endif
5459                 case 'm':
5460                         if (!(param->fp_verbose & VERBOSE_DETAIL))
5461                                 param->fp_max_depth = 0;
5462                         param->fp_verbose |= VERBOSE_MDTINDEX;
5463                         break;
5464                 case 'N':
5465                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5466                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
5467                                 param->fp_max_depth = 0;
5468                         }
5469                         break;
5470                 case 'O':
5471                         if (param->fp_obd_uuid) {
5472                                 fprintf(stderr,
5473                                         "error: %s: only one obduuid allowed",
5474                                         argv[0]);
5475                                 return CMD_HELP;
5476                         }
5477                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
5478                         break;
5479                 case 'p':
5480                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5481                                 param->fp_verbose |= VERBOSE_POOL;
5482                                 param->fp_max_depth = 0;
5483                         }
5484                         break;
5485                 case 'q':
5486                         param->fp_quiet++;
5487                         break;
5488                 case 'r':
5489                         param->fp_recursive = 1;
5490                         break;
5491                 case 'R':
5492                         param->fp_raw = 1;
5493                         break;
5494                 case 'S':
5495                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5496                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
5497                                 param->fp_max_depth = 0;
5498                         }
5499                         break;
5500                 case 'v':
5501                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
5502                         break;
5503                 case 'y':
5504                         param->fp_yaml = 1;
5505                         break;
5506                 case 'z':
5507                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5508                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
5509                                 param->fp_max_depth = 0;
5510                         }
5511                         break;
5512                 default:
5513                         return CMD_HELP;
5514                 }
5515         }
5516
5517         if (pathstart == -1) {
5518                 fprintf(stderr, "error: %s: no filename|pathname\n",
5519                                 argv[0]);
5520                 return CMD_HELP;
5521         } else if (pathend == -1) {
5522                 /* no options */
5523                 pathend = argc;
5524         }
5525
5526         if (pathend > argc)
5527                 return CMD_HELP;
5528
5529         if (param->fp_recursive)
5530                 param->fp_max_depth = -1;
5531         else if (param->fp_verbose & VERBOSE_DETAIL)
5532                 param->fp_max_depth = 1;
5533
5534         if (!param->fp_verbose)
5535                 param->fp_verbose = VERBOSE_DEFAULT;
5536         if (param->fp_quiet)
5537                 param->fp_verbose = VERBOSE_OBJID;
5538
5539         do {
5540                 rc = llapi_getstripe(argv[pathstart], param);
5541         } while (++pathstart < pathend && !rc);
5542
5543         if (rc)
5544                 fprintf(stderr, "error: %s failed for %s.\n",
5545                         argv[0], argv[optind - 1]);
5546         return rc;
5547 }
5548
5549 static int lfs_tgts(int argc, char **argv)
5550 {
5551         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5552         struct find_param param;
5553         int index = 0, rc = 0;
5554
5555         if (argc > 2)
5556                 return CMD_HELP;
5557
5558         if (argc == 2 && !realpath(argv[1], path)) {
5559                 rc = -errno;
5560                 fprintf(stderr, "error: invalid path '%s': %s\n",
5561                         argv[1], strerror(-rc));
5562                 return rc;
5563         }
5564
5565         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
5566                 /* Check if we have a mount point */
5567                 if (mntdir[0] == '\0')
5568                         continue;
5569
5570                 memset(&param, 0, sizeof(param));
5571                 if (!strcmp(argv[0], "mdts"))
5572                         param.fp_get_lmv = 1;
5573
5574                 rc = llapi_ostlist(mntdir, &param);
5575                 if (rc) {
5576                         fprintf(stderr, "error: %s: failed on %s\n",
5577                                 argv[0], mntdir);
5578                 }
5579                 if (path[0] != '\0')
5580                         break;
5581                 memset(mntdir, 0, PATH_MAX);
5582         }
5583
5584         return rc;
5585 }
5586
5587 static int lfs_getstripe(int argc, char **argv)
5588 {
5589         struct find_param param = { 0 };
5590
5591         param.fp_max_depth = 1;
5592         return lfs_getstripe_internal(argc, argv, &param);
5593 }
5594
5595 /* functions */
5596 static int lfs_getdirstripe(int argc, char **argv)
5597 {
5598         struct find_param param = { 0 };
5599         struct option long_opts[] = {
5600         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
5601         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5602         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
5603         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
5604         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5605         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5606         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5607         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
5608         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5609         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5610         { .name = NULL } };
5611         int c, rc;
5612
5613         param.fp_get_lmv = 1;
5614
5615         while ((c = getopt_long(argc, argv,
5616                                 "cDHimO:rtTvy", long_opts, NULL)) != -1) {
5617                 switch (c) {
5618                 case 'c':
5619                 case 'T':
5620                         param.fp_verbose |= VERBOSE_COUNT;
5621                         break;
5622                 case 'D':
5623                         param.fp_get_default_lmv = 1;
5624                         break;
5625                 case 'i':
5626                 case 'm':
5627                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
5628                         break;
5629 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5630                 case 't':
5631                         fprintf(stderr,
5632                                 "warning: '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
5633 #endif
5634                 case 'H':
5635                         param.fp_verbose |= VERBOSE_HASH_TYPE;
5636                         break;
5637                 case 'O':
5638                         if (param.fp_obd_uuid) {
5639                                 fprintf(stderr,
5640                                         "error: %s: only one obduuid allowed",
5641                                         argv[0]);
5642                                 return CMD_HELP;
5643                         }
5644                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
5645                         break;
5646                 case 'r':
5647                         param.fp_recursive = 1;
5648                         break;
5649                 case 'v':
5650                         param.fp_verbose |= VERBOSE_DETAIL;
5651                         break;
5652                 case 'y':
5653                         param.fp_yaml = 1;
5654                         break;
5655                 default:
5656                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5657                                 progname, argv[0], argv[optind - 1]);
5658                         return CMD_HELP;
5659                 }
5660         }
5661
5662         if (optind >= argc)
5663                 return CMD_HELP;
5664
5665         if (param.fp_recursive)
5666                 param.fp_max_depth = -1;
5667
5668         if (!param.fp_verbose)
5669                 param.fp_verbose = VERBOSE_DEFAULT;
5670
5671         do {
5672                 rc = llapi_getstripe(argv[optind], &param);
5673         } while (++optind < argc && !rc);
5674
5675         if (rc)
5676                 fprintf(stderr, "error: %s failed for %s.\n",
5677                         argv[0], argv[optind - 1]);
5678         return rc;
5679 }
5680
5681 enum mntdf_flags {
5682         MNTDF_INODES    = 0x0001,
5683         MNTDF_COOKED    = 0x0002,
5684         MNTDF_LAZY      = 0x0004,
5685         MNTDF_VERBOSE   = 0x0008,
5686         MNTDF_SHOW      = 0x0010,
5687 };
5688
5689 #define COOK(value)                                             \
5690 ({                                                              \
5691         int radix = 0;                                          \
5692         while (value > 1024) {                                  \
5693                 value /= 1024;                                  \
5694                 radix++;                                        \
5695         }                                                       \
5696         radix;                                                  \
5697 })
5698 #define UUF     "%-20s"
5699 #define CSF     "%11s"
5700 #define CDF     "%11llu"
5701 #define HDF     "%8.1f%c"
5702 #define RSF     "%4s"
5703 #define RDF     "%3d%%"
5704
5705 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
5706 {
5707         double avail, used, ratio = 0;
5708
5709         if (inodes) {
5710                 avail = st->os_ffree;
5711                 used = st->os_files - st->os_ffree;
5712         } else {
5713                 avail = st->os_bavail;
5714                 used = st->os_blocks - st->os_bfree;
5715         }
5716         if (avail + used > 0)
5717                 ratio = used / (used + avail) * 100;
5718
5719         /* Round up to match df(1) usage percentage */
5720         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
5721 }
5722
5723 /*
5724  * This is to identify various problem states for "lfs df" if .osn_err = true,
5725  * so only show flags reflecting those states by default. Informational states
5726  * are only shown with "-v" and use lower-case names to distinguish them.
5727  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
5728  */
5729 static struct obd_statfs_state_names {
5730         enum obd_statfs_state   osn_state;
5731         const char              osn_name;
5732         bool                    osn_err;
5733 } oss_names[] = {
5734         { .osn_state = OS_STATFS_DEGRADED,   .osn_name = 'D', .osn_err = true },
5735         { .osn_state = OS_STATFS_READONLY,   .osn_name = 'R', .osn_err = true },
5736         { .osn_state = OS_STATFS_NOPRECREATE,.osn_name = 'N', .osn_err = true },
5737         { .osn_state = OS_STATFS_UNUSED1,    .osn_name = '?', .osn_err = true },
5738         { .osn_state = OS_STATFS_UNUSED2,    .osn_name = '?', .osn_err = true },
5739         { .osn_state = OS_STATFS_ENOSPC,     .osn_name = 'S', .osn_err = true },
5740         { .osn_state = OS_STATFS_ENOINO,     .osn_name = 'I', .osn_err = true },
5741         { .osn_state = OS_STATFS_SUM,        .osn_name = 'a', /* aggregate */ },
5742         { .osn_state = OS_STATFS_NONROT,     .osn_name = 'f', /* flash */     },
5743 };
5744
5745 static int showdf(char *mntdir, struct obd_statfs *stat,
5746                   char *uuid, enum mntdf_flags flags,
5747                   char *type, int index, int rc)
5748 {
5749         long long avail, used, total;
5750         int ratio = 0;
5751         char *suffix = "KMGTPEZY";
5752         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
5753         char tbuf[3 * sizeof(__u64)];
5754         char ubuf[3 * sizeof(__u64)];
5755         char abuf[3 * sizeof(__u64)];
5756         char rbuf[3 * sizeof(__u64)];
5757
5758         if (!uuid || !stat)
5759                 return -EINVAL;
5760
5761         switch (rc) {
5762         case 0:
5763                 if (flags & MNTDF_INODES) {
5764                         avail = stat->os_ffree;
5765                         used = stat->os_files - stat->os_ffree;
5766                         total = stat->os_files;
5767                 } else {
5768                         int shift = flags & MNTDF_COOKED ? 0 : 10;
5769
5770                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
5771                         used  = ((stat->os_blocks - stat->os_bfree) *
5772                                  stat->os_bsize) >> shift;
5773                         total = (stat->os_blocks * stat->os_bsize) >> shift;
5774                 }
5775
5776                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
5777
5778                 if (flags & MNTDF_COOKED) {
5779                         int i;
5780                         double cook_val;
5781
5782                         cook_val = (double)total;
5783                         i = COOK(cook_val);
5784                         if (i > 0)
5785                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
5786                                          suffix[i - 1]);
5787                         else
5788                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
5789
5790                         cook_val = (double)used;
5791                         i = COOK(cook_val);
5792                         if (i > 0)
5793                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
5794                                          suffix[i - 1]);
5795                         else
5796                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
5797
5798                         cook_val = (double)avail;
5799                         i = COOK(cook_val);
5800                         if (i > 0)
5801                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
5802                                          suffix[i - 1]);
5803                         else
5804                                 snprintf(abuf, sizeof(abuf), CDF, avail);
5805                 } else {
5806                         snprintf(tbuf, sizeof(tbuf), CDF, total);
5807                         snprintf(ubuf, sizeof(tbuf), CDF, used);
5808                         snprintf(abuf, sizeof(tbuf), CDF, avail);
5809                 }
5810
5811                 sprintf(rbuf, RDF, ratio);
5812                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
5813                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
5814                 if (type)
5815                         printf("[%s:%d]", type, index);
5816
5817                 if (stat->os_state) {
5818                         uint32_t i;
5819
5820                         printf(" ");
5821                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
5822                                 if (oss_names[i].osn_state & stat->os_state &&
5823                                     (oss_names[i].osn_err ||
5824                                      flags & MNTDF_VERBOSE))
5825                                         printf("%c", oss_names[i].osn_name);
5826                         }
5827                 }
5828
5829                 printf("\n");
5830                 break;
5831         case -ENODATA:
5832                 printf(UUF": inactive device\n", uuid);
5833                 break;
5834         default:
5835                 printf(UUF": %s\n", uuid, strerror(-rc));
5836                 break;
5837         }
5838
5839         return 0;
5840 }
5841
5842 struct ll_stat_type {
5843         int   st_op;
5844         char *st_name;
5845 };
5846
5847 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
5848
5849 struct ll_statfs_data {
5850         int                     sd_index;
5851         struct obd_statfs       sd_st;
5852 };
5853
5854 struct ll_statfs_buf {
5855         int                     sb_count;
5856         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
5857 };
5858
5859 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
5860                  int ops, struct ll_statfs_buf *lsb)
5861 {
5862         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
5863         struct obd_uuid uuid_buf;
5864         char *poolname = NULL;
5865         struct ll_stat_type types[] = {
5866                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
5867                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
5868                 { .st_name = NULL } };
5869         struct ll_stat_type *tp;
5870         __u64 ost_files = 0;
5871         __u64 ost_ffree = 0;
5872         __u32 index;
5873         __u32 type;
5874         int fd;
5875         int rc = 0;
5876         int rc2;
5877
5878         if (pool) {
5879                 poolname = strchr(pool, '.');
5880                 if (poolname) {
5881                         if (strncmp(fsname, pool, strlen(fsname))) {
5882                                 fprintf(stderr, "filesystem name incorrect\n");
5883                                 return -ENODEV;
5884                         }
5885                         poolname++;
5886                 } else
5887                         poolname = pool;
5888         }
5889
5890         fd = open(mntdir, O_RDONLY);
5891         if (fd < 0) {
5892                 rc = -errno;
5893                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
5894                         strerror(errno));
5895                 return rc;
5896         }
5897
5898         if (flags & MNTDF_SHOW) {
5899                 if (flags & MNTDF_INODES)
5900                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5901                                "UUID", "Inodes", "IUsed", "IFree",
5902                                "IUse%", "Mounted on");
5903                 else
5904                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5905                                "UUID",
5906                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
5907                                "Used", "Available", "Use%", "Mounted on");
5908         }
5909
5910         for (tp = types; tp->st_name != NULL; tp++) {
5911                 bool have_ost = false;
5912
5913                 if (!(tp->st_op & ops))
5914                         continue;
5915
5916                 for (index = 0; ; index++) {
5917                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
5918                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
5919                         type = flags & MNTDF_LAZY ?
5920                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
5921                         rc2 = llapi_obd_fstatfs(fd, type, index,
5922                                                &stat_buf, &uuid_buf);
5923                         if (rc2 == -ENODEV)
5924                                 break;
5925                         if (rc2 == -EAGAIN)
5926                                 continue;
5927                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
5928                                 if (!(flags & MNTDF_VERBOSE))
5929                                         continue;
5930                         } else if (rc2 < 0 && rc == 0) {
5931                                 rc = rc2;
5932                         }
5933
5934                         /*
5935                          * If we have OSTs then don't report MDT block counts.
5936                          * For MDT-only filesystems the expectation is that all
5937                          * layouts have a DoM component.  For filesystems with
5938                          * OSTs, files are not necessarily going to store data
5939                          * on MDTs, and MDT space is limited to a fraction of
5940                          * OST space, so don't include it in the summary.
5941                          */
5942                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
5943                                 have_ost = true;
5944                                 sum.os_blocks = 0;
5945                                 sum.os_bfree = 0;
5946                                 sum.os_bavail = 0;
5947                         }
5948
5949                         if (poolname && tp->st_op == LL_STATFS_LOV &&
5950                             llapi_search_ost(fsname, poolname,
5951                                              obd_uuid2str(&uuid_buf)) != 1)
5952                                 continue;
5953
5954                         /*
5955                          * the llapi_obd_fstatfs() call may have returned with
5956                          * an error, but if it filled in uuid_buf we will at
5957                          * lease use that to print out a message for that OBD.
5958                          * If we didn't get anything in the uuid_buf, then fill
5959                          * it in so that we can print an error message.
5960                          */
5961                         if (uuid_buf.uuid[0] == '\0')
5962                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
5963                                          "%s%04x", tp->st_name, index);
5964                         if (!rc && lsb) {
5965                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
5966                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
5967                                 lsb->sb_count++;
5968                         }
5969                         if (flags & MNTDF_SHOW)
5970                                 showdf(mntdir, &stat_buf,
5971                                        obd_uuid2str(&uuid_buf), flags,
5972                                        tp->st_name, index, rc2);
5973
5974                         if (rc2)
5975                                 continue;
5976
5977                         if (tp->st_op == LL_STATFS_LMV) {
5978                                 sum.os_ffree += stat_buf.os_ffree;
5979                                 sum.os_files += stat_buf.os_files;
5980                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
5981                                 ost_files += stat_buf.os_files;
5982                                 ost_ffree += stat_buf.os_ffree;
5983                         }
5984                         sum.os_blocks += stat_buf.os_blocks *
5985                                          stat_buf.os_bsize;
5986                         sum.os_bfree  += stat_buf.os_bfree *
5987                                          stat_buf.os_bsize;
5988                         sum.os_bavail += stat_buf.os_bavail *
5989                                          stat_buf.os_bsize;
5990                 }
5991         }
5992
5993         close(fd);
5994
5995         /*
5996          * If we have _some_ OSTs, but don't have as many free objects on the
5997          * OST as inodes on the MDTs, reduce the reported number of inodes
5998          * to compensate, so that the "inodes in use" number is correct.
5999          * This should be kept in sync with ll_statfs_internal().
6000          */
6001         if (ost_files && ost_ffree < sum.os_ffree) {
6002                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
6003                 sum.os_ffree = ost_ffree;
6004         }
6005         if (flags & MNTDF_SHOW) {
6006                 printf("\n");
6007                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
6008                 printf("\n");
6009         }
6010
6011         return rc;
6012 }
6013
6014 /* functions */
6015 static int lfs_setdirstripe(int argc, char **argv)
6016 {
6017         char *dname;
6018         struct lfs_setstripe_args lsa = { 0 };
6019         struct llapi_stripe_param *param = NULL;
6020         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
6021         char *end;
6022         int c;
6023         char *mode_opt = NULL;
6024         bool default_stripe = false;
6025         bool delete = false;
6026         bool foreign_mode = false;
6027         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
6028         mode_t previous_mode = 0;
6029         char *xattr = NULL;
6030         __u32 type = LU_FOREIGN_TYPE_DAOS, flags = 0;
6031         struct option long_opts[] = {
6032         { .val = 'c',   .name = "count",        .has_arg = required_argument },
6033         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
6034         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
6035         { .val = 'D',   .name = "default",      .has_arg = no_argument },
6036         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
6037         { .val = LFS_LAYOUT_FLAGS_OPT,
6038                         .name = "flags",        .has_arg = required_argument },
6039         { .val = LFS_LAYOUT_FOREIGN_OPT,
6040                         .name = "foreign",      .has_arg = optional_argument},
6041         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
6042 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
6043         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
6044         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
6045 #else
6046 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
6047         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6048         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6049 #endif
6050 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6051         { .val = 'i',   .name = "index",        .has_arg = required_argument },
6052 #endif
6053         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
6054 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6055         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
6056 #endif
6057         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
6058 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
6059         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
6060         { .name = NULL } };
6061         int result = 0;
6062
6063         setstripe_args_init(&lsa);
6064
6065         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:x:",
6066                                 long_opts, NULL)) >= 0) {
6067                 switch (c) {
6068                 case 0:
6069                         /* Long options. */
6070                         break;
6071                 case 'c':
6072                 case 'T':
6073                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
6074                         if (*end != '\0') {
6075                                 fprintf(stderr,
6076                                         "%s %s: invalid stripe count '%s'\n",
6077                                         progname, argv[0], optarg);
6078                                 return CMD_HELP;
6079                         }
6080                         break;
6081                 case 'd':
6082                         delete = true;
6083                         default_stripe = true;
6084                         break;
6085                 case 'D':
6086                         default_stripe = true;
6087                         break;
6088                 case LFS_LAYOUT_FOREIGN_OPT:
6089                         if (optarg) {
6090                                 /* check pure numeric */
6091                                 type = strtoul(optarg, &end, 0);
6092                                 if (*end) {
6093                                         /* check name */
6094                                         type = check_foreign_type_name(optarg);
6095                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
6096                                                 fprintf(stderr,
6097                                                         "%s %s: unknown foreign type '%s'\n",
6098                                                         progname, argv[0],
6099                                                         optarg);
6100                                                 return CMD_HELP;
6101                                         }
6102                                 }
6103                         }
6104                         foreign_mode = true;
6105                         break;
6106                 case LFS_LAYOUT_FLAGS_OPT:
6107                         flags = strtoul(optarg, &end, 16);
6108                         if (*end != '\0') {
6109                                 fprintf(stderr,
6110                                         "%s %s: bad flags '%s'\n",
6111                                         progname, argv[0], optarg);
6112                                 return CMD_HELP;
6113                         }
6114                         break;
6115 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6116                 case 't':
6117                         fprintf(stderr,
6118                                 "warning: '--hash-type' and '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6119 #endif
6120                 case 'H':
6121                         lsa.lsa_pattern = check_hashtype(optarg);
6122                         if (lsa.lsa_pattern == 0) {
6123                                 fprintf(stderr,
6124                                         "%s %s: bad stripe hash type '%s'\n",
6125                                         progname, argv[0], optarg);
6126                                 return CMD_HELP;
6127                         }
6128                         break;
6129                 case 'i':
6130 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
6131                 case 'm':
6132 #endif
6133 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6134                         if (strcmp(argv[optind - 1], "--index") == 0)
6135                                 fprintf(stderr,
6136                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
6137                                         progname, argv[0]);
6138 #endif
6139                         lsa.lsa_nr_tgts = parse_targets(mdts,
6140                                                 sizeof(mdts) / sizeof(__u32),
6141                                                 lsa.lsa_nr_tgts, optarg, NULL);
6142                         if (lsa.lsa_nr_tgts < 0) {
6143                                 fprintf(stderr,
6144                                         "%s %s: invalid MDT target(s) '%s'\n",
6145                                         progname, argv[0], optarg);
6146                                 return CMD_HELP;
6147                         }
6148
6149                         lsa.lsa_tgts = mdts;
6150                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6151                                 lsa.lsa_stripe_off = mdts[0];
6152                         break;
6153 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
6154                 case 'm':
6155                         fprintf(stderr,
6156                                 "warning: '-m' is deprecated, use '--mode' or '-o' instead\n");
6157 #endif
6158                 case 'o':
6159                         mode_opt = optarg;
6160                         break;
6161                 case 'x':
6162                         xattr = optarg;
6163                         break;
6164                 default:
6165                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
6166                                 progname, argv[0], argv[optind - 1]);
6167                         return CMD_HELP;
6168                 }
6169         }
6170
6171         if (optind == argc) {
6172                 fprintf(stderr, "%s %s: DIR must be specified\n",
6173                         progname, argv[0]);
6174                 return CMD_HELP;
6175         }
6176
6177         if (xattr && !foreign_mode) {
6178                 /*
6179                  * only print a warning as this is armless and will be
6180                  * ignored
6181                  */
6182                 fprintf(stderr,
6183                         "%s %s: xattr has been specified for non-foreign layout\n",
6184                         progname, argv[0]);
6185         } else if (foreign_mode && !xattr) {
6186                 fprintf(stderr,
6187                         "%s %s: xattr must be provided in foreign mode\n",
6188                         progname, argv[0]);
6189                 return CMD_HELP;
6190         }
6191
6192         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
6193             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
6194                 fprintf(stderr,
6195                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
6196                         progname, argv[0]);
6197                 return CMD_HELP;
6198         }
6199
6200         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
6201             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
6202                 fprintf(stderr,
6203                         "%s %s: stripe offset and count must be specified\n",
6204                         progname, argv[0]);
6205                 return CMD_HELP;
6206         }
6207
6208         if (delete &&
6209             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
6210              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
6211                 fprintf(stderr,
6212                         "%s %s: cannot specify -d with -c or -i options\n",
6213                         progname, argv[0]);
6214                 return CMD_HELP;
6215         }
6216
6217         if (mode_opt) {
6218                 mode = strtoul(mode_opt, &end, 8);
6219                 if (*end != '\0') {
6220                         fprintf(stderr,
6221                                 "%s %s: bad MODE '%s'\n",
6222                                 progname, argv[0], mode_opt);
6223                         return CMD_HELP;
6224                 }
6225                 previous_mode = umask(0);
6226         }
6227
6228         /* foreign LMV/dir case */
6229         if (foreign_mode) {
6230                 if (argc > optind + 1) {
6231                         fprintf(stderr,
6232                                 "%s %s: cannot specify multiple foreign dirs\n",
6233                                 progname, argv[0]);
6234                         return CMD_HELP;
6235                 }
6236
6237                 dname = argv[optind];
6238                 result = llapi_dir_create_foreign(dname, mode, type, flags,
6239                                                   xattr);
6240                 if (result != 0)
6241                         fprintf(stderr,
6242                                 "%s mkdir: can't create foreign dir '%s': %s\n",
6243                                 progname, dname, strerror(-result));
6244                 return result;
6245         }
6246
6247         /*
6248          * initialize stripe parameters, in case param is converted to specific,
6249          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
6250          */
6251         param = calloc(1, offsetof(typeof(*param),
6252                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
6253                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
6254         if (!param) {
6255                 fprintf(stderr,
6256                         "%s %s: cannot allocate memory for parameters: %s\n",
6257                         progname, argv[0], strerror(ENOMEM));
6258                 return CMD_HELP;
6259         }
6260
6261         /* if "lfs setdirstripe -D -i -1" is used, assume 1-stripe directory */
6262         if (default_stripe && lsa.lsa_stripe_off == -1 &&
6263             (lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT ||
6264              lsa.lsa_stripe_count == 0))
6265                 lsa.lsa_stripe_count = 1;
6266         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
6267                 param->lsp_stripe_count = lsa.lsa_stripe_count;
6268         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6269                 param->lsp_stripe_offset = -1;
6270         else
6271                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
6272         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
6273                 param->lsp_stripe_pattern = lsa.lsa_pattern;
6274         else
6275                 param->lsp_stripe_pattern = LMV_HASH_TYPE_UNKNOWN;
6276         param->lsp_pool = lsa.lsa_pool_name;
6277         param->lsp_is_specific = false;
6278         if (lsa.lsa_nr_tgts > 1) {
6279                 if (lsa.lsa_stripe_count > 0 &&
6280                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
6281                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
6282                         fprintf(stderr,
6283                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
6284                                 argv[0], lsa.lsa_stripe_count,
6285                                 lsa.lsa_nr_tgts);
6286                         free(param);
6287                         return CMD_HELP;
6288                 }
6289
6290                 param->lsp_is_specific = true;
6291                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
6292                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
6293         }
6294
6295         dname = argv[optind];
6296         do {
6297                 if (default_stripe) {
6298                         result = llapi_dir_set_default_lmv(dname, param);
6299                         if (result)
6300                                 fprintf(stderr,
6301                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
6302                                         progname, dname, strerror(-result));
6303                         continue;
6304                 }
6305
6306                 result = llapi_dir_create(dname, mode, param);
6307                 if (result)
6308                         fprintf(stderr,
6309                                 "%s setdirstripe: cannot create dir '%s': %s\n",
6310                                 progname, dname, strerror(-result));
6311         } while (!result && (dname = argv[++optind]));
6312
6313         if (mode_opt)
6314                 umask(previous_mode);
6315
6316         free(param);
6317         return result;
6318 }
6319
6320 /* functions */
6321 static int lfs_rmentry(int argc, char **argv)
6322 {
6323         char *dname;
6324         int   index;
6325         int   result = 0;
6326
6327         if (argc <= 1) {
6328                 fprintf(stderr, "error: %s: missing dirname\n",
6329                         argv[0]);
6330                 return CMD_HELP;
6331         }
6332
6333         index = 1;
6334         dname = argv[index];
6335         while (dname) {
6336                 result = llapi_direntry_remove(dname);
6337                 if (result) {
6338                         fprintf(stderr,
6339                                 "error: %s: remove dir entry '%s' failed\n",
6340                                 argv[0], dname);
6341                         break;
6342                 }
6343                 dname = argv[++index];
6344         }
6345         return result;
6346 }
6347
6348 static int lfs_mv(int argc, char **argv)
6349 {
6350         struct lmv_user_md lmu = { LMV_USER_MAGIC };
6351         struct find_param param = {
6352                 .fp_max_depth = -1,
6353                 .fp_mdt_index = -1,
6354         };
6355         char *end;
6356         int c;
6357         int rc = 0;
6358         struct option long_opts[] = {
6359         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6360         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6361         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6362         { .name = NULL } };
6363
6364         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
6365                 switch (c) {
6366 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6367                 case 'M':
6368                         fprintf(stderr,
6369                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
6370 #endif
6371                 case 'm':
6372                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
6373                         if (*end != '\0') {
6374                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
6375                                         progname, optarg);
6376                                 return CMD_HELP;
6377                         }
6378                         break;
6379                 case 'v':
6380                         param.fp_verbose = VERBOSE_DETAIL;
6381                         break;
6382                 default:
6383                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
6384                                 progname, argv[optind - 1]);
6385                         return CMD_HELP;
6386                 }
6387         }
6388
6389         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
6390                 fprintf(stderr, "%s mv: MDT index must be specified\n",
6391                         progname);
6392                 return CMD_HELP;
6393         }
6394
6395         if (optind >= argc) {
6396                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
6397                 return CMD_HELP;
6398         }
6399
6400         lmu.lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
6401
6402         /* initialize migrate mdt parameters */
6403         param.fp_lmv_md = &lmu;
6404         param.fp_migrate = 1;
6405         rc = llapi_migrate_mdt(argv[optind], &param);
6406         if (rc != 0)
6407                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
6408                         progname, argv[optind], lmu.lum_stripe_offset,
6409                         strerror(-rc));
6410         return rc;
6411 }
6412
6413 static int lfs_osts(int argc, char **argv)
6414 {
6415         return lfs_tgts(argc, argv);
6416 }
6417
6418 static int lfs_mdts(int argc, char **argv)
6419 {
6420         return lfs_tgts(argc, argv);
6421 }
6422
6423 static int lfs_df(int argc, char **argv)
6424 {
6425         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6426         enum mntdf_flags flags = MNTDF_SHOW;
6427         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
6428         int c, rc = 0, index = 0;
6429         char fsname[PATH_MAX] = "", *pool_name = NULL;
6430         struct option long_opts[] = {
6431         { .val = 'h',   .name = "human-readable",
6432                                                 .has_arg = no_argument },
6433         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
6434         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
6435         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
6436         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6437         { .name = NULL} };
6438
6439         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
6440                 switch (c) {
6441                 case 'h':
6442                         flags |= MNTDF_COOKED;
6443                         break;
6444                 case 'i':
6445                         flags |= MNTDF_INODES;
6446                         break;
6447                 case 'l':
6448                         flags |= MNTDF_LAZY;
6449                         break;
6450                 case 'p':
6451                         pool_name = optarg;
6452                         break;
6453                 case 'v':
6454                         flags |= MNTDF_VERBOSE;
6455                         break;
6456                 default:
6457                         return CMD_HELP;
6458                 }
6459         }
6460         if (optind < argc && !realpath(argv[optind], path)) {
6461                 rc = -errno;
6462                 fprintf(stderr, "error: invalid path '%s': %s\n",
6463                         argv[optind], strerror(-rc));
6464                 return rc;
6465         }
6466
6467         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6468                 /* Check if we have a mount point */
6469                 if (mntdir[0] == '\0')
6470                         continue;
6471
6472                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
6473                 if (rc || path[0] != '\0')
6474                         break;
6475                 fsname[0] = '\0'; /* avoid matching in next loop */
6476                 mntdir[0] = '\0'; /* avoid matching in next loop */
6477         }
6478
6479         return rc;
6480 }
6481
6482 static int print_instance(const char *mntdir, char *buf, size_t buflen,
6483                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
6484 {
6485         int rc = 0;
6486
6487         if (opt_fsname == opt_instance) { /* both true or both false */
6488                 rc = llapi_getname(mntdir, buf, buflen);
6489         } else if (opt_fsname) {
6490                 /*
6491                  * llapi_search_mounts() fills @buf with fsname, but that is not
6492                  * called if explicit paths are specified on the command-line
6493                  */
6494                 if (buf[0] == '\0')
6495                         rc = llapi_get_fsname(mntdir, buf, buflen);
6496         } else /* if (opt_instance) */ {
6497                 rc = llapi_get_instance(mntdir, buf, buflen);
6498         }
6499
6500         if (rc < 0) {
6501                 fprintf(stderr, "cannot get instance for '%s': %s\n",
6502                         mntdir, strerror(-rc));
6503                 return rc;
6504         }
6505
6506         if (opt_mntdir)
6507                 printf("%s %s\n", buf, mntdir);
6508         else
6509                 printf("%s\n", buf);
6510
6511         return 0;
6512 }
6513
6514 static int lfs_getname(int argc, char **argv)
6515 {
6516         struct option long_opts[] = {
6517         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6518         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
6519         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
6520         { .name = NULL} };
6521         bool opt_instance = false, opt_fsname = false;
6522         char fsname[PATH_MAX] = "";
6523         int rc = 0, rc2, c;
6524
6525         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
6526                 switch (c) {
6527                 case 'i':
6528                         opt_instance = true;
6529                         break;
6530                 case 'n':
6531                         opt_fsname = true;
6532                         break;
6533                 case 'h':
6534                 default:
6535                         return CMD_HELP;
6536                 }
6537         }
6538
6539         if (optind == argc) { /* no paths specified, get all paths. */
6540                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
6541                 int index = 0;
6542
6543                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6544                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
6545                                              opt_instance, opt_fsname, true);
6546                         if (!rc)
6547                                 rc = rc2;
6548                         path[0] = fsname[0] = mntdir[0] = '\0';
6549                 }
6550         } else { /* paths specified, only attempt to search these. */
6551                 bool opt_mntdir;
6552
6553                 /* if only one path is given, print only requested info */
6554                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
6555
6556                 for (; optind < argc; optind++) {
6557                         rc2 = print_instance(argv[optind], fsname,
6558                                              sizeof(fsname), opt_instance,
6559                                              opt_fsname, opt_mntdir);
6560                         if (!rc)
6561                                 rc = rc2;
6562                         fsname[0] = '\0';
6563                 }
6564         }
6565
6566         return rc;
6567 }
6568
6569 static int lfs_check(int argc, char **argv)
6570 {
6571         char mntdir[PATH_MAX] = {'\0'};
6572         int num_types = 1;
6573         char *obd_types[3];
6574         char obd_type1[4];
6575         char obd_type2[4];
6576         char obd_type3[4];
6577         int rc;
6578
6579         if (argc != 2) {
6580                 fprintf(stderr, "%s check: server type must be specified\n",
6581                         progname);
6582                 return CMD_HELP;
6583         }
6584
6585         obd_types[0] = obd_type1;
6586         obd_types[1] = obd_type2;
6587         obd_types[2] = obd_type3;
6588
6589         if (strcmp(argv[1], "osts") == 0) {
6590                 strcpy(obd_types[0], "osc");
6591         } else if (strcmp(argv[1], "mdts") == 0 ||
6592                    strcmp(argv[1], "mds") == 0) {
6593                 strcpy(obd_types[0], "mdc");
6594         } else if (strcmp(argv[1], "mgts") == 0) {
6595                 strcpy(obd_types[0], "mgc");
6596         } else if (strcmp(argv[1], "all") == 0 ||
6597                    strcmp(argv[1], "servers") == 0) {
6598                 num_types = 3;
6599                 strcpy(obd_types[0], "osc");
6600                 strcpy(obd_types[1], "mdc");
6601                 strcpy(obd_types[2], "mgc");
6602         } else {
6603                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
6604                         progname, argv[1]);
6605                 return CMD_HELP;
6606         }
6607
6608         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
6609         if (rc < 0 || mntdir[0] == '\0') {
6610                 fprintf(stderr,
6611                         "%s check: cannot find mounted Lustre filesystem: %s\n",
6612                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
6613                 return rc;
6614         }
6615
6616         rc = llapi_target_check(num_types, obd_types, mntdir);
6617         if (rc)
6618                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
6619                         progname, argv[1], strerror(-rc));
6620
6621         return rc;
6622 }
6623
6624 #ifdef HAVE_SYS_QUOTA_H
6625 #define ADD_OVERFLOW(a, b) \
6626                      ((((a) + (b)) < (a)) ? \
6627                       ((a) = ULONG_MAX) : ((a) = (a) + (b)))
6628
6629 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
6630  * returns the value or ULONG_MAX on integer overflow or incorrect format
6631  * Notes:
6632  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
6633  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
6634  *        3. empty integer value is interpreted as 0
6635  */
6636 static unsigned long str2sec(const char *timestr)
6637 {
6638         const char spec[] = "smhdw";
6639         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6640         unsigned long val = 0;
6641         char *tail;
6642
6643         if (strpbrk(timestr, spec) == NULL) {
6644                 /*
6645                  * no specifiers inside the time string,
6646                  * should treat it as an integer value
6647                  */
6648                 val = strtoul(timestr, &tail, 10);
6649                 return *tail ? ULONG_MAX : val;
6650         }
6651
6652         /* format string is XXwXXdXXhXXmXXs */
6653         while (*timestr) {
6654                 unsigned long v;
6655                 int ind;
6656                 char *ptr;
6657
6658                 v = strtoul(timestr, &tail, 10);
6659                 if (v == ULONG_MAX || *tail == '\0')
6660                         /*
6661                          * value too large (ULONG_MAX or more)
6662                          * or missing specifier
6663                          */
6664                         goto error;
6665
6666                 ptr = strchr(spec, *tail);
6667                 if (!ptr)
6668                         /* unknown specifier */
6669                         goto error;
6670
6671                 ind = ptr - spec;
6672
6673                 /* check if product will overflow the type */
6674                 if (!(v < ULONG_MAX / mult[ind]))
6675                         goto error;
6676
6677                 ADD_OVERFLOW(val, mult[ind] * v);
6678                 if (val == ULONG_MAX)
6679                         goto error;
6680
6681                 timestr = tail + 1;
6682         }
6683
6684         return val;
6685
6686 error:
6687         return ULONG_MAX;
6688 }
6689
6690 #define ARG2ULL(nr, str, def_units)                                     \
6691 do {                                                                    \
6692         unsigned long long limit, units = def_units;                    \
6693         int rc;                                                         \
6694                                                                         \
6695         rc = llapi_parse_size(str, &limit, &units, 1);                  \
6696         if (rc < 0) {                                                   \
6697                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
6698                         progname, str);                                 \
6699                 return CMD_HELP;                                        \
6700         }                                                               \
6701         nr = limit;                                                     \
6702 } while (0)
6703
6704 static inline int has_times_option(int argc, char **argv)
6705 {
6706         int i;
6707
6708         for (i = 1; i < argc; i++)
6709                 if (!strcmp(argv[i], "-t"))
6710                         return 1;
6711
6712         return 0;
6713 }
6714
6715 static inline int lfs_verify_poolarg(char *pool)
6716 {
6717         if (strnlen(optarg, LOV_MAXPOOLNAME + 1) > LOV_MAXPOOLNAME) {
6718                 fprintf(stderr,
6719                         "Pool name '%.*s' is longer than %d\n",
6720                         LOV_MAXPOOLNAME, pool, LOV_MAXPOOLNAME);
6721                 return 1;
6722         }
6723         return 0;
6724 }
6725
6726 int lfs_setquota_times(int argc, char **argv, struct if_quotactl *qctl)
6727 {
6728         int c, rc;
6729         char *mnt, *obd_type = (char *)qctl->obd_type;
6730         struct obd_dqblk *dqb = &qctl->qc_dqblk;
6731         struct obd_dqinfo *dqi = &qctl->qc_dqinfo;
6732         struct option long_opts[] = {
6733         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
6734         { .val = 'g',   .name = "group",        .has_arg = no_argument },
6735         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
6736         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
6737         { .val = 't',   .name = "times",        .has_arg = no_argument },
6738         { .val = 'u',   .name = "user",         .has_arg = no_argument },
6739         { .val = 'o',   .name = "pool",         .has_arg = required_argument },
6740         { .name = NULL } };
6741         int qtype;
6742
6743         qctl->qc_cmd  = LUSTRE_Q_SETINFO;
6744         qctl->qc_type = ALLQUOTA;
6745
6746         while ((c = getopt_long(argc, argv, "b:gi:ptuo:",
6747                                 long_opts, NULL)) != -1) {
6748                 switch (c) {
6749                 case 'u':
6750                         qtype = USRQUOTA;
6751                         goto quota_type;
6752                 case 'g':
6753                         qtype = GRPQUOTA;
6754                         goto quota_type;
6755                 case 'p':
6756                         qtype = PRJQUOTA;
6757 quota_type:
6758                         if (qctl->qc_type != ALLQUOTA) {
6759                                 fprintf(stderr,
6760                                         "error: -u/g/p can't be used more than once\n");
6761                                 return CMD_HELP;
6762                         }
6763                         qctl->qc_type = qtype;
6764                         break;
6765                 case 'b':
6766                         if (strncmp(optarg, NOTIFY_GRACE,
6767                                     strlen(NOTIFY_GRACE)) == 0) {
6768                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
6769                         } else {
6770                                 dqi->dqi_bgrace = str2sec(optarg);
6771                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
6772                                         fprintf(stderr,
6773                                                 "error: bad block-grace: %s\n",
6774                                                 optarg);
6775                                         return CMD_HELP;
6776                                 }
6777                         }
6778                         dqb->dqb_valid |= QIF_BTIME;
6779                         break;
6780                 case 'i':
6781                         if (strncmp(optarg, NOTIFY_GRACE,
6782                                     strlen(NOTIFY_GRACE)) == 0) {
6783                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
6784                         } else {
6785                                 dqi->dqi_igrace = str2sec(optarg);
6786                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
6787                                         fprintf(stderr,
6788                                                 "error: bad inode-grace: %s\n",
6789                                                 optarg);
6790                                         return CMD_HELP;
6791                                 }
6792                         }
6793                         dqb->dqb_valid |= QIF_ITIME;
6794                         break;
6795                 case 't': /* Yes, of course! */
6796                         break;
6797                 case 'o':
6798                         if (lfs_verify_poolarg(optarg))
6799                                 return -1;
6800                         fprintf(stdout,
6801                                 "Trying to set grace for pool %s\n", optarg);
6802                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
6803                         qctl->qc_cmd  = LUSTRE_Q_SETINFOPOOL;
6804                         break;
6805                 /* getopt prints error message for us when opterr != 0 */
6806                 default:
6807                         return CMD_HELP;
6808                 }
6809         }
6810
6811         if (qctl->qc_type == ALLQUOTA) {
6812                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
6813                 return CMD_HELP;
6814         }
6815
6816         if (optind != argc - 1) {
6817                 fprintf(stderr, "error: unexpected parameters encountered\n");
6818                 return CMD_HELP;
6819         }
6820
6821         mnt = argv[optind];
6822         rc = llapi_quotactl(mnt, qctl);
6823         if (rc) {
6824                 if (*obd_type)
6825                         fprintf(stderr, "%s %s ", obd_type,
6826                                 obd_uuid2str(&qctl->obd_uuid));
6827                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
6828                 return rc;
6829         }
6830
6831         return 0;
6832 }
6833
6834 #define BSLIMIT (1 << 0)
6835 #define BHLIMIT (1 << 1)
6836 #define ISLIMIT (1 << 2)
6837 #define IHLIMIT (1 << 3)
6838
6839 int lfs_setquota(int argc, char **argv)
6840 {
6841         int c, rc = 0;
6842         struct if_quotactl *qctl;
6843         char *mnt, *obd_type;
6844         struct obd_dqblk *dqb;
6845         struct option long_opts[] = {
6846         { .val = 'b',   .name = "block-softlimit",
6847                                                 .has_arg = required_argument },
6848         { .val = 'B',   .name = "block-hardlimit",
6849                                                 .has_arg = required_argument },
6850         { .val = 'd',   .name = "default",      .has_arg = no_argument },
6851         { .val = 'g',   .name = "group",        .has_arg = required_argument },
6852         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
6853         { .val = 'i',   .name = "inode-softlimit",
6854                                                 .has_arg = required_argument },
6855         { .val = 'I',   .name = "inode-hardlimit",
6856                                                 .has_arg = required_argument },
6857         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
6858         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
6859         { .val = 'u',   .name = "user",         .has_arg = required_argument },
6860         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
6861         { .val = 'o',   .name = "pool",         .has_arg = required_argument },
6862         { .name = NULL } };
6863         unsigned int limit_mask = 0;
6864         bool use_default = false;
6865         int qtype, qctl_len;
6866
6867         qctl_len = sizeof(*qctl) + LOV_MAXPOOLNAME + 1;
6868         qctl = malloc(qctl_len);
6869         if (!qctl)
6870                 return -ENOMEM;
6871
6872         memset(qctl, 0, qctl_len);
6873         obd_type = (char *)qctl->obd_type;
6874         dqb = &qctl->qc_dqblk;
6875
6876         if (has_times_option(argc, argv)) {
6877                 rc = lfs_setquota_times(argc, argv, qctl);
6878                 goto out;
6879         }
6880
6881         qctl->qc_cmd  = LUSTRE_Q_SETQUOTA;
6882         qctl->qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
6883                                    * so it can be used as a marker that qc_type
6884                                    * isn't reinitialized from command line
6885                                    */
6886
6887         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:Uo:",
6888                 long_opts, NULL)) != -1) {
6889                 switch (c) {
6890                 case 'U':
6891                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
6892                         qtype = USRQUOTA;
6893                         qctl->qc_id = 0;
6894                         goto quota_type_def;
6895                 case 'u':
6896                         qtype = USRQUOTA;
6897                         rc = name2uid(&qctl->qc_id, optarg);
6898                         goto quota_type;
6899                 case 'G':
6900                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
6901                         qtype = GRPQUOTA;
6902                         qctl->qc_id = 0;
6903                         goto quota_type_def;
6904                 case 'g':
6905                         qtype = GRPQUOTA;
6906                         rc = name2gid(&qctl->qc_id, optarg);
6907                         goto quota_type;
6908                 case 'P':
6909                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
6910                         qtype = PRJQUOTA;
6911                         qctl->qc_id = 0;
6912                         goto quota_type_def;
6913                 case 'p':
6914                         qtype = PRJQUOTA;
6915                         rc = name2projid(&qctl->qc_id, optarg);
6916 quota_type:
6917                         if (rc) {
6918                                 if (str2quotaid(&qctl->qc_id, optarg)) {
6919                                         fprintf(stderr,
6920                                                 "%s setquota: invalid id '%s'\n",
6921                                                 progname, optarg);
6922                                         rc = -1;
6923                                         goto out;
6924                                 }
6925                         }
6926
6927                         if (qctl->qc_id == 0) {
6928                                 fprintf(stderr,
6929                                         "%s setquota: can't set quota for root usr/group/project.\n",
6930                                         progname);
6931                                 rc = -1;
6932                                 goto out;
6933                         }
6934
6935 quota_type_def:
6936                         if (qctl->qc_type != ALLQUOTA) {
6937                                 fprintf(stderr,
6938                                         "%s setquota: only one of -u, -U, -g, -G, -p or -P may be specified\n",
6939                                         progname);
6940                                 rc = CMD_HELP;
6941                                 goto out;
6942                         }
6943                         qctl->qc_type = qtype;
6944                         break;
6945                 case 'd':
6946                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
6947                         use_default = true;
6948                         break;
6949                 case 'b':
6950                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
6951                         dqb->dqb_bsoftlimit >>= 10;
6952                         limit_mask |= BSLIMIT;
6953                         if (dqb->dqb_bsoftlimit &&
6954                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
6955                                 fprintf(stderr,
6956                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
6957                                         progname,
6958                                         (unsigned long long)dqb->dqb_bsoftlimit,
6959                                         progname);
6960                         break;
6961                 case 'B':
6962                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
6963                         dqb->dqb_bhardlimit >>= 10;
6964                         limit_mask |= BHLIMIT;
6965                         if (dqb->dqb_bhardlimit &&
6966                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
6967                                 fprintf(stderr,
6968                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
6969                                         "See '%s help setquota' or Lustre manual for details\n",
6970                                         progname,
6971                                         (unsigned long long)dqb->dqb_bhardlimit,
6972                                         progname);
6973                         break;
6974                 case 'i':
6975                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
6976                         limit_mask |= ISLIMIT;
6977                         if (dqb->dqb_isoftlimit &&
6978                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
6979                                 fprintf(stderr,
6980                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
6981                                         progname,
6982                                         (unsigned long long)dqb->dqb_isoftlimit,
6983                                         progname);
6984                         break;
6985                 case 'I':
6986                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
6987                         limit_mask |= IHLIMIT;
6988                         if (dqb->dqb_ihardlimit &&
6989                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
6990                                 fprintf(stderr,
6991                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
6992                                         progname,
6993                                         (unsigned long long)dqb->dqb_ihardlimit,
6994                                         progname);
6995                         break;
6996                 case 'o':
6997                         if (lfs_verify_poolarg(optarg)) {
6998                                 rc = -1;
6999                                 goto out;
7000                         }
7001                         fprintf(stdout,
7002                                 "Trying to set quota for pool %s\n", optarg);
7003                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7004                         qctl->qc_cmd  = LUSTRE_Q_SETQUOTAPOOL;
7005                         break;
7006                 default:
7007                         fprintf(stderr,
7008                                 "%s setquota: unrecognized option '%s'\n",
7009                                 progname, argv[optind - 1]);
7010                         rc = CMD_HELP;
7011                         goto out;
7012                 }
7013         }
7014
7015         if (qctl->qc_type == ALLQUOTA) {
7016                 fprintf(stderr,
7017                         "%s setquota: either -u or -g must be specified\n",
7018                         progname);
7019                 rc = CMD_HELP;
7020                 goto out;
7021         }
7022
7023         if (!use_default && limit_mask == 0) {
7024                 fprintf(stderr,
7025                         "%s setquota: at least one limit must be specified\n",
7026                         progname);
7027                 rc = CMD_HELP;
7028                 goto out;
7029         }
7030
7031         if (use_default && limit_mask != 0) {
7032                 fprintf(stderr,
7033                         "%s setquota: limits should not be specified when using default quota\n",
7034                         progname);
7035                 rc = CMD_HELP;
7036                 goto out;
7037         }
7038
7039         if (use_default && qctl->qc_id == 0) {
7040                 fprintf(stderr,
7041                         "%s setquota: can not set default quota for root user/group/project\n",
7042                         progname);
7043                 rc = CMD_HELP;
7044                 goto out;
7045         }
7046
7047         if (optind != argc - 1) {
7048                 fprintf(stderr,
7049                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
7050                         progname, argv[optind]);
7051                 rc = CMD_HELP;
7052                 goto out;
7053         }
7054
7055         mnt = argv[optind];
7056
7057         if (use_default) {
7058                 dqb->dqb_bhardlimit = 0;
7059                 dqb->dqb_bsoftlimit = 0;
7060                 dqb->dqb_ihardlimit = 0;
7061                 dqb->dqb_isoftlimit = 0;
7062                 dqb->dqb_itime = 0;
7063                 dqb->dqb_btime = 0;
7064                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
7065         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
7066                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
7067                 /* sigh, we can't just set blimits/ilimits */
7068                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
7069                                                .qc_type = qctl->qc_type,
7070                                                .qc_id   = qctl->qc_id};
7071
7072                 rc = llapi_quotactl(mnt, &tmp_qctl);
7073                 if (rc < 0)
7074                         goto out;
7075
7076                 if (!(limit_mask & BHLIMIT))
7077                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
7078                 if (!(limit_mask & BSLIMIT))
7079                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
7080                 if (!(limit_mask & IHLIMIT))
7081                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
7082                 if (!(limit_mask & ISLIMIT))
7083                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
7084
7085                 /* Keep grace times if we have got no softlimit arguments */
7086                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
7087                         dqb->dqb_valid |= QIF_BTIME;
7088                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
7089                 }
7090
7091                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
7092                         dqb->dqb_valid |= QIF_ITIME;
7093                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
7094                 }
7095         }
7096
7097         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
7098         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
7099
7100         rc = llapi_quotactl(mnt, qctl);
7101         if (rc) {
7102                 if (*obd_type)
7103                         fprintf(stderr,
7104                                 "%s setquota: cannot quotactl '%s' '%s': %s",
7105                                 progname, obd_type,
7106                                 obd_uuid2str(&qctl->obd_uuid), strerror(-rc));
7107         }
7108 out:
7109         free(qctl);
7110         return rc;
7111 }
7112
7113 /* Converts seconds value into format string
7114  * result is returned in buf
7115  * Notes:
7116  *        1. result is in descenting order: 1w2d3h4m5s
7117  *        2. zero fields are not filled (except for p. 3): 5d1s
7118  *        3. zero seconds value is presented as "0s"
7119  */
7120 static char *__sec2str(time_t seconds, char *buf)
7121 {
7122         const char spec[] = "smhdw";
7123         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7124         unsigned long c;
7125         char *tail = buf;
7126         int i;
7127
7128         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
7129                 c = seconds / mult[i];
7130
7131                 if (c > 0 || (i == 0 && buf == tail))
7132                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
7133                                           spec[i]);
7134
7135                 seconds %= mult[i];
7136         }
7137
7138         return tail;
7139 }
7140
7141 static void sec2str(time_t seconds, char *buf, int rc)
7142 {
7143         char *tail = buf;
7144
7145         if (rc)
7146                 *tail++ = '[';
7147
7148         tail = __sec2str(seconds, tail);
7149
7150         if (rc && tail - buf < 39) {
7151                 *tail++ = ']';
7152                 *tail++ = 0;
7153         }
7154 }
7155
7156 static void diff2str(time_t seconds, char *buf, time_t now)
7157 {
7158         buf[0] = 0;
7159         if (!seconds)
7160                 return;
7161         if (seconds <= now) {
7162                 strcpy(buf, "none");
7163                 return;
7164         }
7165         __sec2str(seconds - now, buf);
7166 }
7167
7168 static void print_quota_title(char *name, struct if_quotactl *qctl,
7169                               bool human_readable, bool show_default)
7170 {
7171         if (show_default) {
7172                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
7173                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
7174                        "Filesystem", "bquota", "blimit", "bgrace",
7175                        "iquota", "ilimit", "igrace");
7176         } else {
7177                 printf("Disk quotas for %s %s (%cid %u):\n",
7178                        qtype_name(qctl->qc_type), name,
7179                        *qtype_name(qctl->qc_type), qctl->qc_id);
7180                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
7181                        "Filesystem", human_readable ? "used" : "kbytes",
7182                        "quota", "limit", "grace",
7183                        "files", "quota", "limit", "grace");
7184         }
7185 }
7186
7187 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
7188 {
7189         if (!h) {
7190                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
7191         } else {
7192                 if (num >> 40)
7193                         snprintf(buf, buflen, "%5.4gP",
7194                                  (double)num / ((__u64)1 << 40));
7195                 else if (num >> 30)
7196                         snprintf(buf, buflen, "%5.4gT",
7197                                  (double)num / (1 << 30));
7198                 else if (num >> 20)
7199                         snprintf(buf, buflen, "%5.4gG",
7200                                  (double)num / (1 << 20));
7201                 else if (num >> 10)
7202                         snprintf(buf, buflen, "%5.4gM",
7203                                  (double)num / (1 << 10));
7204                 else
7205                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
7206         }
7207 }
7208
7209 #define STRBUF_LEN      32
7210 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
7211                         int rc, bool h, bool show_default)
7212 {
7213         time_t now;
7214
7215         time(&now);
7216
7217         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
7218             qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
7219             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
7220                 int bover = 0, iover = 0;
7221                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
7222                 char numbuf[3][STRBUF_LEN];
7223                 char timebuf[40];
7224                 char strbuf[STRBUF_LEN];
7225
7226                 if (dqb->dqb_bhardlimit &&
7227                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
7228                         bover = 1;
7229                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
7230                         if (dqb->dqb_btime > now)
7231                                 bover = 2;
7232                         else
7233                                 bover = 3;
7234                 }
7235
7236                 if (dqb->dqb_ihardlimit &&
7237                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
7238                         iover = 1;
7239                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
7240                         if (dqb->dqb_itime > now)
7241                                 iover = 2;
7242                         else
7243                                 iover = 3;
7244                 }
7245
7246                 if (strlen(mnt) > 15)
7247                         printf("%s\n%15s", mnt, "");
7248                 else
7249                         printf("%15s", mnt);
7250
7251                 if (bover)
7252                         diff2str(dqb->dqb_btime, timebuf, now);
7253                 else if (show_default)
7254                         snprintf(timebuf, sizeof(timebuf), "%llu",
7255                                  (unsigned long long)dqb->dqb_btime);
7256
7257                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
7258                            strbuf, sizeof(strbuf), h);
7259                 if (rc == -EREMOTEIO)
7260                         sprintf(numbuf[0], "%s*", strbuf);
7261                 else
7262                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
7263                                 "%s" : "[%s]", strbuf);
7264
7265                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
7266                 if (type == QC_GENERAL)
7267                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
7268                                 "%s" : "[%s]", strbuf);
7269                 else
7270                         sprintf(numbuf[1], "%s", "-");
7271
7272                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
7273                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
7274                         "%s" : "[%s]", strbuf);
7275
7276                 if (show_default)
7277                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
7278                 else
7279                         printf(" %7s%c %6s %7s %7s",
7280                                numbuf[0], bover ? '*' : ' ', numbuf[1],
7281                                numbuf[2], bover > 1 ? timebuf : "-");
7282
7283                 if (iover)
7284                         diff2str(dqb->dqb_itime, timebuf, now);
7285                 else if (show_default)
7286                         snprintf(timebuf, sizeof(timebuf), "%llu",
7287                                  (unsigned long long)dqb->dqb_itime);
7288
7289                 snprintf(numbuf[0], sizeof(numbuf),
7290                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
7291                          (uintmax_t)dqb->dqb_curinodes);
7292
7293                 if (type == QC_GENERAL)
7294                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
7295                                 "%ju" : "[%ju]",
7296                                 (uintmax_t)dqb->dqb_isoftlimit);
7297                 else
7298                         sprintf(numbuf[1], "%s", "-");
7299
7300                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
7301                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
7302
7303                 if (show_default)
7304                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
7305                 else if (type != QC_OSTIDX)
7306                         printf(" %7s%c %6s %7s %7s",
7307                                numbuf[0], iover ? '*' : ' ', numbuf[1],
7308                                numbuf[2], iover > 1 ? timebuf : "-");
7309                 else
7310                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
7311                 printf("\n");
7312         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO || LUSTRE_Q_GETINFOPOOL ||
7313                    qctl->qc_cmd == Q_GETOINFO) {
7314                 char bgtimebuf[40];
7315                 char igtimebuf[40];
7316
7317                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
7318                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
7319                 else
7320                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
7321                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
7322                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
7323                 else
7324                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
7325
7326                 printf("Block grace time: %s; Inode grace time: %s\n",
7327                        bgtimebuf, igtimebuf);
7328         }
7329 }
7330
7331 static int tgt_name2index(const char *tgtname, unsigned int *idx)
7332 {
7333         char *dash, *endp;
7334
7335         /* format is "lustre-OST0001" */
7336         dash = memchr(tgtname, '-', LUSTRE_MAXFSNAME + 1);
7337         if (!dash) {
7338                 fprintf(stderr, "wrong tgtname format '%s'\n", tgtname);
7339                 return -EINVAL;
7340         }
7341         dash += 4;
7342
7343         *idx = strtoul(dash, &endp, 16);
7344         if (*idx > 0xffff) {
7345                 fprintf(stderr, "wrong index %s\n", tgtname);
7346                 return -ERANGE;
7347         }
7348
7349         return 0;
7350 }
7351
7352 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
7353                            bool h, __u64 *total)
7354 {
7355         int rc = 0, rc1 = 0, count = 0, i = 0;
7356         char **list = NULL, *buffer = NULL;
7357         __u32 valid = qctl->qc_valid;
7358
7359         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL && is_mdt)
7360                 return 0;
7361
7362         /* Is it correct for the case OST0000, OST0002, OST0003 -
7363          * we will ask OST0001 that is absent and won't ask OST0003? */
7364         rc = llapi_get_obd_count(mnt, &count, is_mdt);
7365         if (rc) {
7366                 fprintf(stderr, "can not get %s count: %s\n",
7367                         is_mdt ? "mdt" : "ost", strerror(-rc));
7368                 return rc;
7369         }
7370
7371         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
7372                 char fname[PATH_MAX];
7373                 char fsname[LUSTRE_MAXFSNAME + 1];
7374                 int bufsize = sizeof(struct obd_uuid) * count;
7375
7376                 rc = llapi_search_fsname(mnt, fsname);
7377                 if (rc) {
7378                         fprintf(stderr, "cannot get fsname for mountpoint %s\n",
7379                                 mnt);
7380                         goto out;
7381                 }
7382                 buffer = malloc(bufsize + sizeof(*list) * count);
7383                 if (!buffer)
7384                         return -ENOMEM;
7385                 list = (char **)(buffer + bufsize);
7386                 snprintf(fname, PATH_MAX, "%s.%s", fsname, qctl->qc_poolname);
7387                 count = llapi_get_poolmembers(fname, list, count,
7388                                               buffer, bufsize);
7389                 if (count <= 0)
7390                         goto out;
7391         }
7392
7393         for (i = 0; i < count; i++) {
7394                 if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
7395                         unsigned int index;
7396
7397                         if (tgt_name2index(list[i], &index))
7398                                 continue;
7399                         qctl->qc_idx = index;
7400                 } else {
7401                         qctl->qc_idx = i;
7402                 }
7403
7404                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
7405                 rc = llapi_quotactl(mnt, qctl);
7406                 if (rc) {
7407                         /* It is remote client case. */
7408                         if (rc == -EOPNOTSUPP) {
7409                                 rc = 0;
7410                                 goto out;
7411                         }
7412
7413                         if (!rc1)
7414                                 rc1 = rc;
7415                         fprintf(stderr, "quotactl %s%d failed.\n",
7416                                 is_mdt ? "mdt" : "ost", qctl->qc_idx);
7417                         continue;
7418                 }
7419
7420                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
7421                             qctl->qc_valid, 0, h, false);
7422                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
7423                                    qctl->qc_dqblk.dqb_bhardlimit;
7424         }
7425 out:
7426         if (buffer)
7427                 free(buffer);
7428         qctl->qc_valid = valid;
7429         return rc ? : rc1;
7430 }
7431
7432 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
7433                            int verbose, int quiet, bool human_readable,
7434                            bool show_default)
7435 {
7436         int rc1 = 0, rc2 = 0, rc3 = 0;
7437         char *obd_type = (char *)qctl->obd_type;
7438         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
7439         __u64 total_ialloc = 0, total_balloc = 0;
7440         bool use_default_for_blk = false;
7441         bool use_default_for_file = false;
7442         int inacc;
7443
7444         rc1 = llapi_quotactl(mnt, qctl);
7445         if (rc1 < 0) {
7446                 switch (rc1) {
7447                 case -ESRCH:
7448                         fprintf(stderr, "%s quotas are not enabled.\n",
7449                                 qtype_name(qctl->qc_type));
7450                         goto out;
7451                 case -EPERM:
7452                         fprintf(stderr, "Permission denied.\n");
7453                 case -ENODEV:
7454                 case -ENOENT:
7455                         /* We already got error message. */
7456                         goto out;
7457                 default:
7458                         fprintf(stderr, "Unexpected quotactl error: %s\n",
7459                                 strerror(-rc1));
7460                 }
7461         }
7462
7463         if (!show_default && qctl->qc_id == 0) {
7464                 qctl->qc_dqblk.dqb_bhardlimit = 0;
7465                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
7466                 qctl->qc_dqblk.dqb_ihardlimit = 0;
7467                 qctl->qc_dqblk.dqb_isoftlimit = 0;
7468                 qctl->qc_dqblk.dqb_btime = 0;
7469                 qctl->qc_dqblk.dqb_itime = 0;
7470                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
7471         }
7472
7473         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
7474             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
7475                 use_default_for_blk = true;
7476                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
7477         }
7478
7479         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
7480             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
7481                 use_default_for_file = true;
7482                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
7483         }
7484
7485         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7486              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
7487              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
7488                 print_quota_title(name, qctl, human_readable, show_default);
7489
7490         if (rc1 && *obd_type)
7491                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
7492
7493         if (qctl->qc_valid != QC_GENERAL)
7494                 mnt = "";
7495
7496         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7497                  qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
7498                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
7499                  (QIF_LIMITS|QIF_USAGE));
7500
7501         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
7502
7503         if (!show_default && verbose &&
7504             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
7505             qctl->qc_cmd != LUSTRE_Q_GETINFOPOOL) {
7506                 char strbuf[STRBUF_LEN];
7507
7508                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
7509                                       &total_ialloc);
7510                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
7511                                       &total_balloc);
7512                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
7513                            human_readable);
7514                 printf("Total allocated inode limit: %ju, total allocated block limit: %s\n",
7515                        (uintmax_t)total_ialloc, strbuf);
7516         }
7517
7518         if (use_default_for_blk)
7519                 printf("%cid %u is using default block quota setting\n",
7520                        *qtype_name(qctl->qc_type), qctl->qc_id);
7521
7522         if (use_default_for_file)
7523                 printf("%cid %u is using default file quota setting\n",
7524                        *qtype_name(qctl->qc_type), qctl->qc_id);
7525
7526         if (rc1 || rc2 || rc3 || inacc)
7527                 printf("Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in \"[]\" is inaccurate.\n");
7528 out:
7529         if (rc1)
7530                 return rc1;
7531         if (rc2)
7532                 return rc2;
7533         if (rc3)
7534                 return rc3;
7535         if (inacc)
7536                 return -EIO;
7537
7538         return 0;
7539 }
7540
7541 static int lfs_project(int argc, char **argv)
7542 {
7543         int ret = 0, err = 0, c, i;
7544         struct project_handle_control phc = { 0 };
7545         enum lfs_project_ops_t op;
7546
7547         phc.newline = true;
7548         phc.assign_projid = false;
7549         /* default action */
7550         op = LFS_PROJECT_LIST;
7551
7552         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
7553                 switch (c) {
7554                 case 'c':
7555                         if (op != LFS_PROJECT_LIST) {
7556                                 fprintf(stderr,
7557                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7558                                         progname);
7559                                 return CMD_HELP;
7560                         }
7561
7562                         op = LFS_PROJECT_CHECK;
7563                         break;
7564                 case 'C':
7565                         if (op != LFS_PROJECT_LIST) {
7566                                 fprintf(stderr,
7567                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7568                                         progname);
7569                                 return CMD_HELP;
7570                         }
7571
7572                         op = LFS_PROJECT_CLEAR;
7573                         break;
7574                 case 's':
7575                         if (op != LFS_PROJECT_LIST) {
7576                                 fprintf(stderr,
7577                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7578                                         progname);
7579                                 return CMD_HELP;
7580                         }
7581
7582                         phc.set_inherit = true;
7583                         op = LFS_PROJECT_SET;
7584                         break;
7585                 case 'd':
7586                         phc.dironly = true;
7587                         break;
7588                 case 'k':
7589                         phc.keep_projid = true;
7590                         break;
7591                 case 'r':
7592                         phc.recursive = true;
7593                         break;
7594                 case 'p':
7595                         if (str2quotaid(&phc.projid, optarg)) {
7596                                 fprintf(stderr,
7597                                         "Invalid project ID: %s\n",
7598                                         optarg);
7599                                 return CMD_HELP;
7600                         }
7601
7602                         phc.assign_projid = true;
7603
7604                         break;
7605                 case '0':
7606                         phc.newline = false;
7607                         break;
7608                 default:
7609                         fprintf(stderr, "%s: invalid option '%c'\n",
7610                                 progname, optopt);
7611                         return CMD_HELP;
7612                 }
7613         }
7614
7615         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
7616                 op = LFS_PROJECT_SET;
7617                 phc.set_projid = true;
7618         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
7619                 phc.set_projid = true;
7620         }
7621
7622         switch (op) {
7623         case LFS_PROJECT_CHECK:
7624                 if (phc.keep_projid) {
7625                         fprintf(stderr,
7626                                 "%s: '-k' is useless together with '-c'\n",
7627                                 progname);
7628                         return CMD_HELP;
7629                 }
7630                 break;
7631         case LFS_PROJECT_CLEAR:
7632                 if (!phc.newline) {
7633                         fprintf(stderr,
7634                                 "%s: '-0' is useless together with '-C'\n",
7635                                 progname);
7636                         return CMD_HELP;
7637                 }
7638                 if (phc.assign_projid) {
7639                         fprintf(stderr,
7640                                 "%s: '-p' is useless together with '-C'\n",
7641                                 progname);
7642                         return CMD_HELP;
7643                 }
7644                 break;
7645         case LFS_PROJECT_SET:
7646                 if (!phc.newline) {
7647                         fprintf(stderr,
7648                                 "%s: '-0' is useless together with '-s'\n",
7649                                 progname);
7650                         return CMD_HELP;
7651                 }
7652                 if (phc.keep_projid) {
7653                         fprintf(stderr,
7654                                 "%s: '-k' is useless together with '-s'\n",
7655                                 progname);
7656                         return CMD_HELP;
7657                 }
7658                 break;
7659         default:
7660                 if (!phc.newline) {
7661                         fprintf(stderr,
7662                                 "%s: '-0' is useless for list operations\n",
7663                                 progname);
7664                         return CMD_HELP;
7665                 }
7666                 break;
7667         }
7668
7669         argv += optind;
7670         argc -= optind;
7671         if (argc == 0) {
7672                 fprintf(stderr, "%s: missing file or directory target(s)\n",
7673                         progname);
7674                 return CMD_HELP;
7675         }
7676
7677         for (i = 0; i < argc; i++) {
7678                 switch (op) {
7679                 case LFS_PROJECT_CHECK:
7680                         err = lfs_project_check(argv[i], &phc);
7681                         break;
7682                 case LFS_PROJECT_LIST:
7683                         err = lfs_project_list(argv[i], &phc);
7684                         break;
7685                 case LFS_PROJECT_CLEAR:
7686                         err = lfs_project_clear(argv[i], &phc);
7687                         break;
7688                 case LFS_PROJECT_SET:
7689                         err = lfs_project_set(argv[i], &phc);
7690                         break;
7691                 default:
7692                         break;
7693                 }
7694                 if (err && !ret)
7695                         ret = err;
7696         }
7697
7698         return ret;
7699 }
7700
7701 static int lfs_quota(int argc, char **argv)
7702 {
7703         int c;
7704         char *mnt, *name = NULL;
7705         struct if_quotactl *qctl;
7706         char *obd_uuid;
7707         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
7708         __u32 valid = QC_GENERAL, idx = 0;
7709         bool human_readable = false;
7710         bool show_default = false;
7711         int qtype;
7712         struct option long_opts[] = {
7713         { .val = 1,     .name = "pool", .has_arg = required_argument },
7714         { .name = NULL } };
7715
7716         qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
7717         if (!qctl)
7718                 return -ENOMEM;
7719
7720         qctl->qc_cmd = LUSTRE_Q_GETQUOTA;
7721         qctl->qc_type = ALLQUOTA;
7722         obd_uuid = (char *)qctl->obd_uuid.uuid;
7723
7724         while ((c = getopt_long(argc, argv, "gGi:I:o:pPqtuUvh",
7725                 long_opts, NULL)) != -1) {
7726                 switch (c) {
7727                 case 'U':
7728                         show_default = true;
7729                 case 'u':
7730                         qtype = USRQUOTA;
7731                         goto quota_type;
7732                 case 'G':
7733                         show_default = true;
7734                 case 'g':
7735                         qtype = GRPQUOTA;
7736                         goto quota_type;
7737                 case 'P':
7738                         show_default = true;
7739                 case 'p':
7740                         qtype = PRJQUOTA;
7741 quota_type:
7742                         if (qctl->qc_type != ALLQUOTA) {
7743                                 fprintf(stderr,
7744                                         "%s quota: only one of -u, -g, or -p may be specified\n",
7745                                         progname);
7746                                 rc = CMD_HELP;
7747                                 goto out;
7748                         }
7749                         qctl->qc_type = qtype;
7750                         break;
7751                 case 't':
7752                         qctl->qc_cmd = LUSTRE_Q_GETINFO;
7753                         break;
7754                 case 'o':
7755                         valid = qctl->qc_valid = QC_UUID;
7756                         snprintf(obd_uuid, sizeof(*obd_uuid), "%s", optarg);
7757                         break;
7758                 case 'i':
7759                         valid = qctl->qc_valid = QC_MDTIDX;
7760                         idx = qctl->qc_idx = atoi(optarg);
7761                         if (idx == 0 && *optarg != '0') {
7762                                 fprintf(stderr,
7763                                         "%s quota: invalid MDT index '%s'\n",
7764                                         progname, optarg);
7765                                 rc = CMD_HELP;
7766                                 goto out;
7767                         }
7768                         break;
7769                 case 'I':
7770                         valid = qctl->qc_valid = QC_OSTIDX;
7771                         idx = qctl->qc_idx = atoi(optarg);
7772                         if (idx == 0 && *optarg != '0') {
7773                                 fprintf(stderr,
7774                                         "%s quota: invalid OST index '%s'\n",
7775                                         progname, optarg);
7776                                 rc = CMD_HELP;
7777                                 goto out;
7778                         }
7779                         break;
7780                 case 'v':
7781                         verbose = 1;
7782                         break;
7783                 case 'q':
7784                         quiet = 1;
7785                         break;
7786                 case 'h':
7787                         human_readable = true;
7788                         break;
7789                 case 1:
7790                         if (lfs_verify_poolarg(optarg)) {
7791                                 rc = -1;
7792                                 goto out;
7793                         }
7794                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7795                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_GETINFO ?
7796                                                 LUSTRE_Q_GETINFOPOOL :
7797                                                 LUSTRE_Q_GETQUOTAPOOL;
7798                         break;
7799                 default:
7800                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
7801                                 progname, argv[optind - 1]);
7802                         rc = CMD_HELP;
7803                         goto out;
7804                 }
7805         }
7806
7807         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
7808         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7809              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
7810              qctl->qc_type == ALLQUOTA &&
7811              optind == argc - 1 && !show_default) {
7812                 qctl->qc_idx = idx;
7813
7814                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
7815                         qctl->qc_type = qtype;
7816                         qctl->qc_valid = valid;
7817                         if (qtype == USRQUOTA) {
7818                                 qctl->qc_id = geteuid();
7819                                 rc = uid2name(&name, qctl->qc_id);
7820                         } else {
7821                                 qctl->qc_id = getegid();
7822                                 rc = gid2name(&name, qctl->qc_id);
7823                                 memset(&qctl->qc_dqblk, 0,
7824                                        sizeof(qctl->qc_dqblk));
7825                         }
7826                         if (rc)
7827                                 name = "<unknown>";
7828                         mnt = argv[optind];
7829                         rc1 = get_print_quota(mnt, name, qctl, verbose, quiet,
7830                                               human_readable, show_default);
7831                         if (rc1 && !rc)
7832                                 rc = rc1;
7833                 }
7834                 goto out;
7835         /* lfs quota -u username /path/to/lustre/mount */
7836         } else if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7837                    qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
7838                 /* options should be followed by u/g-name and mntpoint */
7839                 if ((!show_default && optind + 2 != argc) ||
7840                     (show_default && optind + 1 != argc) ||
7841                     qctl->qc_type == ALLQUOTA) {
7842                         fprintf(stderr,
7843                                 "%s quota: name and mount point must be specified\n",
7844                                 progname);
7845                         rc = CMD_HELP;
7846                         goto out;
7847                 }
7848
7849                 if (!show_default) {
7850                         name = argv[optind++];
7851                         switch (qctl->qc_type) {
7852                         case USRQUOTA:
7853                                 rc = name2uid(&qctl->qc_id, name);
7854                                 break;
7855                         case GRPQUOTA:
7856                                 rc = name2gid(&qctl->qc_id, name);
7857                                 break;
7858                         case PRJQUOTA:
7859                                 rc = name2projid(&qctl->qc_id, name);
7860                                 break;
7861                         default:
7862                                 rc = -ENOTSUP;
7863                                 break;
7864                         }
7865                 } else {
7866                         qctl->qc_valid = QC_GENERAL;
7867                         qctl->qc_cmd = LUSTRE_Q_GETDEFAULT;
7868                         qctl->qc_id = 0;
7869                 }
7870
7871                 if (rc) {
7872                         if (str2quotaid(&qctl->qc_id, name)) {
7873                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
7874                                         progname, name);
7875                                 rc = CMD_HELP;
7876                                 goto out;
7877                         }
7878                 }
7879         } else if (optind + 1 != argc || qctl->qc_type == ALLQUOTA) {
7880                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
7881                         progname);
7882                 rc = CMD_HELP;
7883                 goto out;
7884         }
7885
7886         mnt = argv[optind];
7887         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
7888                              human_readable, show_default);
7889 out:
7890         free(qctl);
7891         return rc;
7892 }
7893 #endif /* HAVE_SYS_QUOTA_H! */
7894
7895 static int flushctx_ioctl(char *mp)
7896 {
7897         int fd, rc;
7898
7899         fd = open(mp, O_RDONLY);
7900         if (fd == -1) {
7901                 fprintf(stderr, "flushctx: error open %s: %s\n",
7902                         mp, strerror(errno));
7903                 return -1;
7904         }
7905
7906         rc = ioctl(fd, LL_IOC_FLUSHCTX);
7907         if (rc == -1)
7908                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
7909                         mp, strerror(errno));
7910
7911         close(fd);
7912         return rc;
7913 }
7914
7915 static int lfs_flushctx(int argc, char **argv)
7916 {
7917         int     kdestroy = 0, c;
7918         char    mntdir[PATH_MAX] = {'\0'};
7919         int     index = 0;
7920         int     rc = 0;
7921
7922         while ((c = getopt(argc, argv, "k")) != -1) {
7923                 switch (c) {
7924                 case 'k':
7925                         kdestroy = 1;
7926                         break;
7927                 default:
7928                         fprintf(stderr,
7929                                 "error: %s: option '-%c' unrecognized\n",
7930                                 argv[0], c);
7931                         return CMD_HELP;
7932                 }
7933         }
7934
7935         if (kdestroy) {
7936                 rc = system("kdestroy > /dev/null");
7937                 if (rc) {
7938                         rc = WEXITSTATUS(rc);
7939                         fprintf(stderr,
7940                                 "error destroying tickets: %d, continuing\n",
7941                                 rc);
7942                 }
7943         }
7944
7945         if (optind >= argc) {
7946                 /* flush for all mounted lustre fs. */
7947                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
7948                         /* Check if we have a mount point */
7949                         if (mntdir[0] == '\0')
7950                                 continue;
7951
7952                         if (flushctx_ioctl(mntdir))
7953                                 rc = -1;
7954
7955                         mntdir[0] = '\0'; /* avoid matching in next loop */
7956                 }
7957         } else {
7958                 /* flush fs as specified */
7959                 while (optind < argc) {
7960                         if (flushctx_ioctl(argv[optind++]))
7961                                 rc = -1;
7962                 }
7963         }
7964         return rc;
7965 }
7966
7967 static int lfs_changelog(int argc, char **argv)
7968 {
7969         void *changelog_priv;
7970         struct changelog_rec *rec;
7971         long long startrec = 0, endrec = 0;
7972         char *mdd;
7973         struct option long_opts[] = {
7974                 { .val = 'f', .name = "follow", .has_arg = no_argument },
7975                 { .name = NULL } };
7976         char short_opts[] = "f";
7977         int rc, follow = 0;
7978
7979         while ((rc = getopt_long(argc, argv, short_opts,
7980                 long_opts, NULL)) != -1) {
7981                 switch (rc) {
7982                 case 'f':
7983                         follow++;
7984                         break;
7985                 default:
7986                         fprintf(stderr,
7987                                 "%s changelog: unrecognized option '%s'\n",
7988                                 progname, argv[optind - 1]);
7989                         return CMD_HELP;
7990                 }
7991         }
7992         if (optind >= argc) {
7993                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
7994                         progname);
7995                 return CMD_HELP;
7996         }
7997
7998         mdd = argv[optind++];
7999         if (argc > optind)
8000                 startrec = strtoll(argv[optind++], NULL, 10);
8001         if (argc > optind)
8002                 endrec = strtoll(argv[optind++], NULL, 10);
8003
8004         rc = llapi_changelog_start(&changelog_priv,
8005                                    CHANGELOG_FLAG_BLOCK |
8006                                    CHANGELOG_FLAG_JOBID |
8007                                    CHANGELOG_FLAG_EXTRA_FLAGS |
8008                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
8009                                    mdd, startrec);
8010         if (rc < 0) {
8011                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
8012                         progname, strerror(errno = -rc));
8013                 return rc;
8014         }
8015
8016         rc = llapi_changelog_set_xflags(changelog_priv,
8017                                         CHANGELOG_EXTRA_FLAG_UIDGID |
8018                                         CHANGELOG_EXTRA_FLAG_NID |
8019                                         CHANGELOG_EXTRA_FLAG_OMODE |
8020                                         CHANGELOG_EXTRA_FLAG_XATTR);
8021         if (rc < 0) {
8022                 fprintf(stderr,
8023                         "%s changelog: cannot set xflags for changelog: %s\n",
8024                         progname, strerror(errno = -rc));
8025                 return rc;
8026         }
8027
8028         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
8029                 time_t secs;
8030                 struct tm ts;
8031
8032                 if (endrec && rec->cr_index > endrec) {
8033                         llapi_changelog_free(&rec);
8034                         break;
8035                 }
8036                 if (rec->cr_index < startrec) {
8037                         llapi_changelog_free(&rec);
8038                         continue;
8039                 }
8040
8041                 secs = rec->cr_time >> 30;
8042                 gmtime_r(&secs, &ts);
8043                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
8044                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
8045                        changelog_type2str(rec->cr_type),
8046                        ts.tm_hour, ts.tm_min, ts.tm_sec,
8047                        (int)(rec->cr_time & ((1 << 30) - 1)),
8048                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
8049                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
8050
8051                 if (rec->cr_flags & CLF_JOBID) {
8052                         struct changelog_ext_jobid *jid =
8053                                 changelog_rec_jobid(rec);
8054
8055                         if (jid->cr_jobid[0] != '\0')
8056                                 printf(" j=%s", jid->cr_jobid);
8057                 }
8058
8059                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
8060                         struct changelog_ext_extra_flags *ef =
8061                                 changelog_rec_extra_flags(rec);
8062
8063                         printf(" ef=0x%llx",
8064                                (unsigned long long)ef->cr_extra_flags);
8065
8066                         if (ef->cr_extra_flags & CLFE_UIDGID) {
8067                                 struct changelog_ext_uidgid *uidgid =
8068                                         changelog_rec_uidgid(rec);
8069
8070                                 printf(" u=%llu:%llu",
8071                                        (unsigned long long)uidgid->cr_uid,
8072                                        (unsigned long long)uidgid->cr_gid);
8073                         }
8074                         if (ef->cr_extra_flags & CLFE_NID) {
8075                                 struct changelog_ext_nid *nid =
8076                                         changelog_rec_nid(rec);
8077
8078                                 printf(" nid=%s",
8079                                        libcfs_nid2str(nid->cr_nid));
8080                         }
8081
8082                         if (ef->cr_extra_flags & CLFE_OPEN) {
8083                                 struct changelog_ext_openmode *omd =
8084                                         changelog_rec_openmode(rec);
8085                                 char mode[] = "---";
8086
8087                                 /* exec mode must be exclusive */
8088                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
8089                                         mode[2] = 'x';
8090                                 } else {
8091                                         if (omd->cr_openflags & MDS_FMODE_READ)
8092                                                 mode[0] = 'r';
8093                                         if (omd->cr_openflags &
8094                                             (MDS_FMODE_WRITE |
8095                                              MDS_OPEN_TRUNC |
8096                                              MDS_OPEN_APPEND))
8097                                                 mode[1] = 'w';
8098                                 }
8099
8100                                 if (strcmp(mode, "---") != 0)
8101                                         printf(" m=%s", mode);
8102                         }
8103
8104                         if (ef->cr_extra_flags & CLFE_XATTR) {
8105                                 struct changelog_ext_xattr *xattr =
8106                                         changelog_rec_xattr(rec);
8107
8108                                 if (xattr->cr_xattr[0] != '\0')
8109                                         printf(" x=%s", xattr->cr_xattr);
8110                         }
8111                 }
8112
8113                 if (!fid_is_zero(&rec->cr_pfid))
8114                         printf(" p="DFID, PFID(&rec->cr_pfid));
8115                 if (rec->cr_namelen)
8116                         printf(" %.*s", rec->cr_namelen,
8117                                changelog_rec_name(rec));
8118
8119                 if (rec->cr_flags & CLF_RENAME) {
8120                         struct changelog_ext_rename *rnm =
8121                                 changelog_rec_rename(rec);
8122
8123                         if (!fid_is_zero(&rnm->cr_sfid))
8124                                 printf(" s="DFID" sp="DFID" %.*s",
8125                                        PFID(&rnm->cr_sfid),
8126                                        PFID(&rnm->cr_spfid),
8127                                        (int)changelog_rec_snamelen(rec),
8128                                        changelog_rec_sname(rec));
8129                 }
8130                 printf("\n");
8131
8132                 llapi_changelog_free(&rec);
8133         }
8134
8135         llapi_changelog_fini(&changelog_priv);
8136
8137         if (rc < 0)
8138                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
8139                         progname, strerror(errno = -rc));
8140
8141         return (rc == 1 ? 0 : rc);
8142 }
8143
8144 static int lfs_changelog_clear(int argc, char **argv)
8145 {
8146         long long endrec;
8147         int rc;
8148
8149         if (argc != 4)
8150                 return CMD_HELP;
8151
8152         endrec = strtoll(argv[3], NULL, 10);
8153
8154         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
8155
8156         if (rc == -EINVAL)
8157                 fprintf(stderr, "%s: record out of range: %llu\n",
8158                         argv[0], endrec);
8159         else if (rc == -ENOENT)
8160                 fprintf(stderr, "%s: no changelog user: %s\n",
8161                         argv[0], argv[2]);
8162         else if (rc)
8163                 fprintf(stderr, "%s error: %s\n", argv[0],
8164                         strerror(-rc));
8165
8166         if (rc)
8167                 errno = -rc;
8168
8169         return rc;
8170 }
8171
8172 static int lfs_fid2path(int argc, char **argv)
8173 {
8174         struct option long_opts[] = {
8175                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
8176                 { .val = 'l',   .name = "link", .has_arg = required_argument },
8177                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
8178                 { .name = NULL } };
8179         char short_opts[] = "cl:r:";
8180         char mntdir[PATH_MAX];
8181         char *device, *fid, *path, *rootpath;
8182         long long recno = -1;
8183         int linkno = -1;
8184         int lnktmp;
8185         int printcur = 0;
8186         int rc = 0;
8187         char *endptr = NULL;
8188
8189         while ((rc = getopt_long(argc, argv, short_opts,
8190                 long_opts, NULL)) != -1) {
8191                 switch (rc) {
8192                 case 'c':
8193                         printcur++;
8194                         break;
8195                 case 'l':
8196                         linkno = strtol(optarg, &endptr, 10);
8197                         if (*endptr != '\0') {
8198                                 fprintf(stderr,
8199                                         "%s fid2path: invalid linkno '%s'\n",
8200                                         progname, optarg);
8201                                 return CMD_HELP;
8202                         }
8203                         break;
8204                 case 'r':
8205                         recno = strtoll(optarg, &endptr, 10);
8206                         if (*endptr != '\0') {
8207                                 fprintf(stderr,
8208                                         "%s fid2path: invalid recno '%s'\n",
8209                                         progname, optarg);
8210                                 return CMD_HELP;
8211                         }
8212                         break;
8213                 default:
8214                         fprintf(stderr,
8215                                 "%s fid2path: unrecognized option '%s'\n",
8216                                 progname, argv[optind - 1]);
8217                         return CMD_HELP;
8218                 }
8219         }
8220
8221         if (argc < 3) {
8222                 fprintf(stderr,
8223                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
8224                         progname);
8225                 return CMD_HELP;
8226         }
8227
8228         device = argv[optind++];
8229         path = calloc(1, PATH_MAX);
8230         if (!path) {
8231                 rc = -errno;
8232                 fprintf(stderr,
8233                         "%s fid2path: cannot allocate memory for path: %s\n",
8234                         progname, strerror(-rc));
8235                 return rc;
8236         }
8237
8238         rc = 0;
8239         /* in case that device is not the mountpoint */
8240         if (device[0] == '/') {
8241                 rc = llapi_search_mounts(device, 0, mntdir, NULL);
8242                 if (rc == 0) {
8243                         rootpath = mntdir;
8244                 } else {
8245                         fprintf(stderr,
8246                                 "%s fid2path: %s has no mountpoint: %s\n",
8247                                 progname, device, strerror(-rc));
8248                         goto out;
8249                 }
8250         }
8251         while (optind < argc) {
8252                 fid = argv[optind++];
8253
8254                 lnktmp = (linkno >= 0) ? linkno : 0;
8255                 while (1) {
8256                         int oldtmp = lnktmp;
8257                         long long rectmp = recno;
8258                         int rc2;
8259
8260                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
8261                                              &rectmp, &lnktmp);
8262                         if (rc2 < 0) {
8263                                 fprintf(stderr,
8264                                         "%s fid2path: cannot find %s %s: %s\n",
8265                                         progname, device, fid,
8266                                         strerror(errno = -rc2));
8267                                 if (rc == 0)
8268                                         rc = rc2;
8269                                 break;
8270                         }
8271
8272                         if (printcur)
8273                                 fprintf(stdout, "%lld ", rectmp);
8274                         if (device[0] == '/') {
8275                                 fprintf(stdout, "%s", rootpath);
8276                                 if (rootpath[strlen(rootpath) - 1] != '/')
8277                                         fprintf(stdout, "/");
8278                         } else if (path[0] == '\0') {
8279                                 fprintf(stdout, "/");
8280                         }
8281                         fprintf(stdout, "%s\n", path);
8282
8283                         if (linkno >= 0)
8284                                 /* specified linkno */
8285                                 break;
8286                         if (oldtmp == lnktmp)
8287                                 /* no more links */
8288                                 break;
8289                 }
8290         }
8291 out:
8292         free(path);
8293         return rc;
8294 }
8295
8296 static int lfs_path2fid(int argc, char **argv)
8297 {
8298         struct option long_opts[] = {
8299                 { .val = 'p', .name = "parents", .has_arg = no_argument },
8300                 { .name = NULL } };
8301         char            **path;
8302         const char        short_opts[] = "p";
8303         const char       *sep = "";
8304         struct lu_fid     fid;
8305         int               rc = 0;
8306         bool              show_parents = false;
8307
8308         while ((rc = getopt_long(argc, argv, short_opts,
8309                                  long_opts, NULL)) != -1) {
8310                 switch (rc) {
8311                 case 'p':
8312                         show_parents = true;
8313                         break;
8314                 default:
8315                         fprintf(stderr,
8316                                 "%s path2fid: unrecognized option '%s'\n",
8317                                 progname, argv[optind - 1]);
8318                         return CMD_HELP;
8319                 }
8320         }
8321
8322         if (optind > argc - 1) {
8323                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
8324                         progname);
8325                 return CMD_HELP;
8326         } else if (optind < argc - 1) {
8327                 sep = ": ";
8328         }
8329
8330         rc = 0;
8331         for (path = argv + optind; *path != NULL; path++) {
8332                 int err = 0;
8333
8334                 if (!show_parents) {
8335                         err = llapi_path2fid(*path, &fid);
8336                         if (!err)
8337                                 printf("%s%s"DFID"\n",
8338                                        *sep != '\0' ? *path : "", sep,
8339                                        PFID(&fid));
8340                 } else {
8341                         char            name[NAME_MAX + 1];
8342                         unsigned int    linkno = 0;
8343
8344                         while ((err = llapi_path2parent(*path, linkno, &fid,
8345                                                 name, sizeof(name))) == 0) {
8346                                 if (*sep != '\0' && linkno == 0)
8347                                         printf("%s%s", *path, sep);
8348
8349                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
8350                                        PFID(&fid), name);
8351                                 linkno++;
8352                         }
8353
8354                         /* err == -ENODATA is end-of-loop */
8355                         if (linkno > 0 && err == -ENODATA) {
8356                                 printf("\n");
8357                                 err = 0;
8358                         }
8359                 }
8360
8361                 if (err) {
8362                         fprintf(stderr,
8363                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
8364                                 progname, show_parents ? "parent " : "", *path,
8365                                 strerror(-err));
8366                         if (rc == 0) {
8367                                 rc = err;
8368                                 errno = -err;
8369                         }
8370                 }
8371         }
8372
8373         return rc;
8374 }
8375
8376 #define MAX_ERRNO       4095
8377 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
8378
8379 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
8380 {
8381         int rc, rc2 = 0, k;
8382
8383         rc = llapi_rmfid(device, fa);
8384         if (rc) {
8385                 fprintf(stderr, "rmfid(): rc = %d\n", rc);
8386                 return rc;
8387         }
8388
8389         for (k = 0; k < fa->fa_nr; k++) {
8390                 rc = (__s32)fa->fa_fids[k].f_ver;
8391                 if (!IS_ERR_VALUE(rc))
8392                         continue;
8393                 if (!rc2 && rc)
8394                         rc2 = rc;
8395                 if (!rc)
8396                         continue;
8397                 fa->fa_fids[k].f_ver = 0;
8398                 fprintf(stderr, "rmfid("DFID"): rc = %d\n",
8399                         PFID(&fa->fa_fids[k]), rc);
8400         }
8401
8402         return rc2;
8403 }
8404
8405 static int lfs_rmfid(int argc, char **argv)
8406 {
8407         char *fidstr, *device;
8408         int rc = 0, rc2, nr;
8409         struct fid_array *fa;
8410
8411         if (optind > argc - 1) {
8412                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
8413                 return CMD_HELP;
8414         }
8415
8416         device = argv[optind++];
8417
8418         nr = argc - optind;
8419         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
8420         if (!fa)
8421                 return -ENOMEM;
8422
8423         fa->fa_nr = 0;
8424         rc = 0;
8425         while (optind < argc) {
8426                 int found;
8427
8428                 fidstr = argv[optind++];
8429                 while (*fidstr == '[')
8430                         fidstr++;
8431                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
8432                 if (found != 3) {
8433                         fprintf(stderr, "unrecognized FID: %s\n",
8434                                 argv[optind - 1]);
8435                         exit(1);
8436                 }
8437                 fa->fa_nr++;
8438                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
8439                         /* start another batch */
8440                         rc2 = lfs_rmfid_and_show_errors(device, fa);
8441                         if (rc2 && !rc)
8442                                 rc = rc2;
8443                         fa->fa_nr = 0;
8444                 }
8445         }
8446         if (fa->fa_nr) {
8447                 rc2 = lfs_rmfid_and_show_errors(device, fa);
8448                 if (rc2 && !rc)
8449                         rc = rc2;
8450         }
8451
8452         return rc;
8453 }
8454
8455 static int lfs_data_version(int argc, char **argv)
8456 {
8457         char *path;
8458         __u64 data_version;
8459         int fd;
8460         int rc;
8461         int c;
8462         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
8463
8464         if (argc < 2) {
8465                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8466                         progname);
8467                 return CMD_HELP;
8468         }
8469
8470         while ((c = getopt(argc, argv, "nrw")) != -1) {
8471                 switch (c) {
8472                 case 'n':
8473                         data_version_flags = 0;
8474                         break;
8475                 case 'r':
8476                         data_version_flags |= LL_DV_RD_FLUSH;
8477                         break;
8478                 case 'w':
8479                         data_version_flags |= LL_DV_WR_FLUSH;
8480                         break;
8481                 default:
8482                         fprintf(stderr,
8483                                 "%s data_version: unrecognized option '%s'\n",
8484                                 progname, argv[optind - 1]);
8485                         return CMD_HELP;
8486                 }
8487         }
8488         if (optind == argc) {
8489                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8490                         progname);
8491                 return CMD_HELP;
8492         }
8493
8494         path = argv[optind];
8495         fd = open(path, O_RDONLY);
8496         if (fd < 0) {
8497                 rc = -errno;
8498                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
8499                         progname, path, strerror(-rc));
8500                 return rc;
8501         }
8502
8503         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
8504         if (rc < 0)
8505                 fprintf(stderr,
8506                         "%s data_version: cannot get version for '%s': %s\n",
8507                         progname, path, strerror(-rc));
8508         else
8509                 printf("%ju" "\n", (uintmax_t)data_version);
8510
8511         close(fd);
8512         return rc;
8513 }
8514
8515 static int lfs_hsm_state(int argc, char **argv)
8516 {
8517         int rc;
8518         int i = 1;
8519         char *path;
8520         struct hsm_user_state hus;
8521
8522         if (argc < 2)
8523                 return CMD_HELP;
8524
8525         do {
8526                 path = argv[i];
8527
8528                 rc = llapi_hsm_state_get(path, &hus);
8529                 if (rc) {
8530                         fprintf(stderr, "can't get hsm state for %s: %s\n",
8531                                 path, strerror(errno = -rc));
8532                         return rc;
8533                 }
8534
8535                 /* Display path name and status flags */
8536                 printf("%s: (0x%08x)", path, hus.hus_states);
8537
8538                 if (hus.hus_states & HS_RELEASED)
8539                         printf(" released");
8540                 if (hus.hus_states & HS_EXISTS)
8541                         printf(" exists");
8542                 if (hus.hus_states & HS_DIRTY)
8543                         printf(" dirty");
8544                 if (hus.hus_states & HS_ARCHIVED)
8545                         printf(" archived");
8546                 /* Display user-settable flags */
8547                 if (hus.hus_states & HS_NORELEASE)
8548                         printf(" never_release");
8549                 if (hus.hus_states & HS_NOARCHIVE)
8550                         printf(" never_archive");
8551                 if (hus.hus_states & HS_LOST)
8552                         printf(" lost_from_hsm");
8553
8554                 if (hus.hus_archive_id != 0)
8555                         printf(", archive_id:%d", hus.hus_archive_id);
8556                 printf("\n");
8557
8558         } while (++i < argc);
8559
8560         return 0;
8561 }
8562
8563 #define LFS_HSM_SET   0
8564 #define LFS_HSM_CLEAR 1
8565
8566 /**
8567  * Generic function to set or clear HSM flags.
8568  * Used by hsm_set and hsm_clear.
8569  *
8570  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
8571  */
8572 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
8573 {
8574         struct option long_opts[] = {
8575         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
8576         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
8577         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
8578         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
8579         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
8580         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
8581         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
8582         { .name = NULL } };
8583         char short_opts[] = "lraAdei:";
8584         __u64 mask = 0;
8585         int c, rc;
8586         char *path;
8587         __u32 archive_id = 0;
8588         char *end = NULL;
8589
8590         if (argc < 3)
8591                 return CMD_HELP;
8592
8593         while ((c = getopt_long(argc, argv, short_opts,
8594                                 long_opts, NULL)) != -1) {
8595                 switch (c) {
8596                 case 'l':
8597                         mask |= HS_LOST;
8598                         break;
8599                 case 'a':
8600                         mask |= HS_NOARCHIVE;
8601                         break;
8602                 case 'A':
8603                         mask |= HS_ARCHIVED;
8604                         break;
8605                 case 'r':
8606                         mask |= HS_NORELEASE;
8607                         break;
8608                 case 'd':
8609                         mask |= HS_DIRTY;
8610                         break;
8611                 case 'e':
8612                         mask |= HS_EXISTS;
8613                         break;
8614                 case 'i':
8615                         archive_id = strtol(optarg, &end, 10);
8616                         if (*end != '\0') {
8617                                 fprintf(stderr, "invalid archive_id: '%s'\n",
8618                                         end);
8619                                 return CMD_HELP;
8620                         }
8621                         break;
8622                 case '?':
8623                         return CMD_HELP;
8624                 default:
8625                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8626                                 argv[0], argv[optind - 1]);
8627                         return CMD_HELP;
8628                 }
8629         }
8630
8631         /* User should have specified a flag */
8632         if (mask == 0)
8633                 return CMD_HELP;
8634
8635         while (optind < argc) {
8636                 path = argv[optind];
8637
8638                 /* If mode == 0, this means we apply the mask. */
8639                 if (mode == LFS_HSM_SET)
8640                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
8641                 else
8642                         rc = llapi_hsm_state_set(path, 0, mask, 0);
8643
8644                 if (rc != 0) {
8645                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
8646                                 path, strerror(errno = -rc));
8647                         return rc;
8648                 }
8649                 optind++;
8650         }
8651
8652         return 0;
8653 }
8654
8655 static int lfs_hsm_action(int argc, char **argv)
8656 {
8657         int                              rc;
8658         int                              i = 1;
8659         char                            *path;
8660         struct hsm_current_action        hca;
8661         struct hsm_extent                he;
8662         enum hsm_user_action             hua;
8663         enum hsm_progress_states         hps;
8664
8665         if (argc < 2)
8666                 return CMD_HELP;
8667
8668         do {
8669                 path = argv[i];
8670
8671                 rc = llapi_hsm_current_action(path, &hca);
8672                 if (rc) {
8673                         fprintf(stderr, "can't get hsm action for %s: %s\n",
8674                                 path, strerror(errno = -rc));
8675                         return rc;
8676                 }
8677                 he = hca.hca_location;
8678                 hua = hca.hca_action;
8679                 hps = hca.hca_state;
8680
8681                 printf("%s: %s", path, hsm_user_action2name(hua));
8682
8683                 /* Skip file without action */
8684                 if (hca.hca_action == HUA_NONE) {
8685                         printf("\n");
8686                         continue;
8687                 }
8688
8689                 printf(" %s ", hsm_progress_state2name(hps));
8690
8691                 if ((hps == HPS_RUNNING) &&
8692                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
8693                         printf("(%llu bytes moved)\n",
8694                                (unsigned long long)he.length);
8695                 else if ((he.offset + he.length) == LUSTRE_EOF)
8696                         printf("(from %llu to EOF)\n",
8697                                (unsigned long long)he.offset);
8698                 else
8699                         printf("(from %llu to %llu)\n",
8700                                (unsigned long long)he.offset,
8701                                (unsigned long long)(he.offset + he.length));
8702
8703         } while (++i < argc);
8704
8705         return 0;
8706 }
8707
8708 static int lfs_hsm_set(int argc, char **argv)
8709 {
8710         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
8711 }
8712
8713 static int lfs_hsm_clear(int argc, char **argv)
8714 {
8715         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
8716 }
8717
8718 /**
8719  * Check file state and return its fid, to be used by lfs_hsm_request().
8720  *
8721  * \param[in]     file      Path to file to check
8722  * \param[in,out] fid       Pointer to allocated lu_fid struct.
8723  * \param[in,out] last_dev  Pointer to last device id used.
8724  *
8725  * \return 0 on success.
8726  */
8727 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
8728                                 dev_t *last_dev)
8729 {
8730         struct stat     st;
8731         int             rc;
8732
8733         rc = lstat(file, &st);
8734         if (rc) {
8735                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
8736                 return -errno;
8737         }
8738         /*
8739          * Checking for regular file as archiving as posix copytool
8740          * rejects archiving files other than regular files
8741          */
8742         if (!S_ISREG(st.st_mode)) {
8743                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
8744                 return CMD_HELP;
8745         }
8746         /* A request should be ... */
8747         if (*last_dev != st.st_dev && *last_dev != 0) {
8748                 fprintf(stderr,
8749                         "All files should be on the same filesystem: %s\n",
8750                         file);
8751                 return -EINVAL;
8752         }
8753         *last_dev = st.st_dev;
8754
8755         rc = llapi_path2fid(file, fid);
8756         if (rc) {
8757                 fprintf(stderr, "Cannot read FID of %s: %s\n",
8758                         file, strerror(-rc));
8759                 return rc;
8760         }
8761         return 0;
8762 }
8763
8764 /* Fill an HSM HUR item with a given file name.
8765  *
8766  * If mntpath is set, then the filename is actually a FID, and no
8767  * lookup on the filesystem will be performed.
8768  *
8769  * \param[in]  hur         the user request to fill
8770  * \param[in]  idx         index of the item inside the HUR to fill
8771  * \param[in]  mntpath     mountpoint of Lustre
8772  * \param[in]  fname       filename (if mtnpath is NULL)
8773  *                         or FID (if mntpath is set)
8774  * \param[in]  last_dev    pointer to last device id used
8775  *
8776  * \retval 0 on success
8777  * \retval CMD_HELP or a negative errno on error
8778  */
8779 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
8780                          const char *mntpath, const char *fname,
8781                          dev_t *last_dev)
8782 {
8783         struct hsm_user_item *hui = &hur->hur_user_item[idx];
8784         int rc;
8785
8786         hui->hui_extent.length = -1;
8787
8788         if (mntpath) {
8789                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
8790                 if (rc)
8791                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
8792                                 fname);
8793         } else {
8794                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
8795         }
8796
8797         if (rc == 0)
8798                 hur->hur_request.hr_itemcount++;
8799
8800         return rc;
8801 }
8802
8803 static int lfs_hsm_request(int argc, char **argv, int action)
8804 {
8805         struct option long_opts[] = {
8806         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
8807         { .val = 'D',   .name = "data",         .has_arg = required_argument },
8808         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
8809         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
8810         { .name = NULL } };
8811         dev_t last_dev = 0;
8812         char short_opts[] = "l:D:a:m:";
8813         struct hsm_user_request *hur, *oldhur;
8814         int c, i;
8815         size_t len;
8816         int nbfile;
8817         char *line = NULL;
8818         char *filelist = NULL;
8819         char fullpath[PATH_MAX];
8820         char *opaque = NULL;
8821         int opaque_len = 0;
8822         int archive_id = 0;
8823         FILE *fp;
8824         int nbfile_alloc = 0;
8825         char *some_file = NULL;
8826         char *mntpath = NULL;
8827         int rc;
8828
8829         if (argc < 2)
8830                 return CMD_HELP;
8831
8832         while ((c = getopt_long(argc, argv, short_opts,
8833                                 long_opts, NULL)) != -1) {
8834                 switch (c) {
8835                 case 'l':
8836                         filelist = optarg;
8837                         break;
8838                 case 'D':
8839                         opaque = optarg;
8840                         break;
8841                 case 'a':
8842                         if (action != HUA_ARCHIVE &&
8843                             action != HUA_REMOVE) {
8844                                 fprintf(stderr,
8845                                         "error: -a is supported only when archiving or removing\n");
8846                                 return CMD_HELP;
8847                         }
8848                         archive_id = atoi(optarg);
8849                         break;
8850                 case 'm':
8851                         if (!some_file) {
8852                                 mntpath = optarg;
8853                                 some_file = strdup(optarg);
8854                         }
8855                         break;
8856                 case '?':
8857                         return CMD_HELP;
8858                 default:
8859                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8860                                 argv[0], argv[optind - 1]);
8861                         return CMD_HELP;
8862                 }
8863         }
8864
8865         /* All remaining args are files, so we have at least nbfile */
8866         nbfile = argc - optind;
8867
8868         if ((nbfile == 0) && (!filelist))
8869                 return CMD_HELP;
8870
8871         if (opaque)
8872                 opaque_len = strlen(opaque);
8873
8874         /*
8875          * Alloc the request structure with enough place to store all files
8876          * from command line.
8877          */
8878         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
8879         if (!hur) {
8880                 fprintf(stderr, "Cannot create the request: %s\n",
8881                         strerror(errno));
8882                 return errno;
8883         }
8884         nbfile_alloc = nbfile;
8885
8886         hur->hur_request.hr_action = action;
8887         hur->hur_request.hr_archive_id = archive_id;
8888         hur->hur_request.hr_flags = 0;
8889
8890         /* All remaining args are files, add them */
8891         if (nbfile != 0 && some_file == NULL)
8892                 some_file = strdup(argv[optind]);
8893
8894         for (i = 0; i < nbfile; i++) {
8895                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
8896                                    &last_dev);
8897                 if (rc)
8898                         goto out_free;
8899         }
8900
8901         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
8902
8903         /* If a filelist was specified, read the filelist from it. */
8904         if (filelist) {
8905                 fp = fopen(filelist, "r");
8906                 if (!fp) {
8907                         fprintf(stderr, "Cannot read the file list %s: %s\n",
8908                                 filelist, strerror(errno));
8909                         rc = -errno;
8910                         goto out_free;
8911                 }
8912
8913                 while ((rc = getline(&line, &len, fp)) != -1) {
8914                         /*
8915                          * If allocated buffer was too small, get something
8916                          * larger
8917                          */
8918                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
8919                                 ssize_t size;
8920
8921                                 nbfile_alloc = nbfile_alloc * 2 + 1;
8922                                 oldhur = hur;
8923                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
8924                                                                    opaque_len);
8925                                 if (!hur) {
8926                                         fprintf(stderr,
8927                                                 "hsm: cannot allocate the request: %s\n",
8928                                                 strerror(errno));
8929                                         hur = oldhur;
8930                                         rc = -errno;
8931                                         fclose(fp);
8932                                         goto out_free;
8933                                 }
8934                                 size = hur_len(oldhur);
8935                                 if (size < 0) {
8936                                         fprintf(stderr,
8937                                                 "hsm: cannot allocate %u files + %u bytes data\n",
8938                                                 oldhur->hur_request.hr_itemcount,
8939                                                 oldhur->hur_request.hr_data_len);
8940                                         free(hur);
8941                                         hur = oldhur;
8942                                         rc = -E2BIG;
8943                                         fclose(fp);
8944                                         goto out_free;
8945                                 }
8946                                 memcpy(hur, oldhur, size);
8947                                 free(oldhur);
8948                         }
8949
8950                         /* Chop CR */
8951                         if (line[strlen(line) - 1] == '\n')
8952                                 line[strlen(line) - 1] = '\0';
8953
8954                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
8955                                            mntpath, line, &last_dev);
8956                         if (rc) {
8957                                 fclose(fp);
8958                                 goto out_free;
8959                         }
8960
8961                         if (!some_file) {
8962                                 some_file = line;
8963                                 line = NULL;
8964                         }
8965                 }
8966
8967                 rc = fclose(fp);
8968                 free(line);
8969         }
8970
8971         /* If a --data was used, add it to the request */
8972         hur->hur_request.hr_data_len = opaque_len;
8973         if (opaque)
8974                 memcpy(hur_data(hur), opaque, opaque_len);
8975
8976         /* Send the HSM request */
8977         if (realpath(some_file, fullpath) == NULL) {
8978                 fprintf(stderr, "Could not find path '%s': %s\n",
8979                         some_file, strerror(errno));
8980         }
8981         rc = llapi_hsm_request(fullpath, hur);
8982         if (rc) {
8983                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
8984                         some_file, strerror(-rc));
8985                 goto out_free;
8986         }
8987
8988 out_free:
8989         free(some_file);
8990         free(hur);
8991         return rc;
8992 }
8993
8994 static int lfs_hsm_archive(int argc, char **argv)
8995 {
8996         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
8997 }
8998
8999 static int lfs_hsm_restore(int argc, char **argv)
9000 {
9001         return lfs_hsm_request(argc, argv, HUA_RESTORE);
9002 }
9003
9004 static int lfs_hsm_release(int argc, char **argv)
9005 {
9006         return lfs_hsm_request(argc, argv, HUA_RELEASE);
9007 }
9008
9009 static int lfs_hsm_remove(int argc, char **argv)
9010 {
9011         return lfs_hsm_request(argc, argv, HUA_REMOVE);
9012 }
9013
9014 static int lfs_hsm_cancel(int argc, char **argv)
9015 {
9016         return lfs_hsm_request(argc, argv, HUA_CANCEL);
9017 }
9018
9019 static int lfs_swap_layouts(int argc, char **argv)
9020 {
9021         if (argc != 3)
9022                 return CMD_HELP;
9023
9024         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
9025                                   SWAP_LAYOUTS_KEEP_MTIME |
9026                                   SWAP_LAYOUTS_KEEP_ATIME);
9027 }
9028
9029 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
9030
9031 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
9032
9033 int lfs_get_mode(const char *string)
9034 {
9035         enum lock_mode_user mode;
9036
9037         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
9038                 if (lock_mode_names[mode] == NULL)
9039                         continue;
9040                 if (strcmp(string, lock_mode_names[mode]) == 0)
9041                         return mode;
9042         }
9043
9044         return -EINVAL;
9045 }
9046
9047 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
9048 {
9049         enum lu_ladvise_type advice;
9050
9051         for (advice = 0;
9052              advice < ARRAY_SIZE(ladvise_names); advice++) {
9053                 if (ladvise_names[advice] == NULL)
9054                         continue;
9055                 if (strcmp(string, ladvise_names[advice]) == 0)
9056                         return advice;
9057         }
9058
9059         return LU_LADVISE_INVALID;
9060 }
9061
9062 static int lfs_ladvise(int argc, char **argv)
9063 {
9064         struct option long_opts[] = {
9065         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
9066         { .val = 'b',   .name = "background",   .has_arg = no_argument },
9067         { .val = 'e',   .name = "end",          .has_arg = required_argument },
9068         { .val = 'l',   .name = "length",       .has_arg = required_argument },
9069         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
9070         { .val = 's',   .name = "start",        .has_arg = required_argument },
9071         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
9072         { .name = NULL } };
9073         char                     short_opts[] = "a:be:l:m:s:u";
9074         int                      c;
9075         int                      rc = 0;
9076         const char              *path;
9077         int                      fd;
9078         struct llapi_lu_ladvise  advice;
9079         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
9080         unsigned long long       start = 0;
9081         unsigned long long       end = LUSTRE_EOF;
9082         unsigned long long       length = 0;
9083         unsigned long long       size_units;
9084         unsigned long long       flags = 0;
9085         int                      mode = 0;
9086
9087         optind = 0;
9088         while ((c = getopt_long(argc, argv, short_opts,
9089                                 long_opts, NULL)) != -1) {
9090                 switch (c) {
9091                 case 'a':
9092                         advice_type = lfs_get_ladvice(optarg);
9093                         if (advice_type == LU_LADVISE_INVALID) {
9094                                 fprintf(stderr,
9095                                         "%s: invalid advice type '%s'\n",
9096                                         argv[0], optarg);
9097                                 fprintf(stderr, "Valid types:");
9098
9099                                 for (advice_type = 0;
9100                                      advice_type < ARRAY_SIZE(ladvise_names);
9101                                      advice_type++) {
9102                                         if (ladvise_names[advice_type] == NULL)
9103                                                 continue;
9104                                         fprintf(stderr, " %s",
9105                                                 ladvise_names[advice_type]);
9106                                 }
9107                                 fprintf(stderr, "\n");
9108
9109                                 return CMD_HELP;
9110                         }
9111                         break;
9112                 case 'b':
9113                         flags |= LF_ASYNC;
9114                         break;
9115                 case 'u':
9116                         flags |= LF_UNSET;
9117                         break;
9118                 case 'e':
9119                         size_units = 1;
9120                         rc = llapi_parse_size(optarg, &end,
9121                                               &size_units, 0);
9122                         if (rc) {
9123                                 fprintf(stderr, "%s: bad end offset '%s'\n",
9124                                         argv[0], optarg);
9125                                 return CMD_HELP;
9126                         }
9127                         break;
9128                 case 's':
9129                         size_units = 1;
9130                         rc = llapi_parse_size(optarg, &start,
9131                                               &size_units, 0);
9132                         if (rc) {
9133                                 fprintf(stderr,
9134                                         "%s: bad start offset '%s'\n",
9135                                         argv[0], optarg);
9136                                 return CMD_HELP;
9137                         }
9138                         break;
9139                 case 'l':
9140                         size_units = 1;
9141                         rc = llapi_parse_size(optarg, &length,
9142                                               &size_units, 0);
9143                         if (rc) {
9144                                 fprintf(stderr, "%s: bad length '%s'\n",
9145                                         argv[0], optarg);
9146                                 return CMD_HELP;
9147                         }
9148                         break;
9149                 case 'm':
9150                         mode = lfs_get_mode(optarg);
9151                         if (mode < 0) {
9152                                 fprintf(stderr,
9153                                         "%s: bad mode '%s', valid modes are READ or WRITE\n",
9154                                         argv[0], optarg);
9155                                 return CMD_HELP;
9156                         }
9157                         break;
9158                 case '?':
9159                         return CMD_HELP;
9160                 default:
9161                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9162                                 argv[0], argv[optind - 1]);
9163                         return CMD_HELP;
9164                 }
9165         }
9166
9167         if (advice_type == LU_LADVISE_INVALID) {
9168                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
9169                 fprintf(stderr, "Valid types:");
9170                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
9171                      advice_type++) {
9172                         if (ladvise_names[advice_type] == NULL)
9173                                 continue;
9174                         fprintf(stderr, " %s", ladvise_names[advice_type]);
9175                 }
9176                 fprintf(stderr, "\n");
9177                 return CMD_HELP;
9178         }
9179
9180         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
9181                 fprintf(stderr,
9182                         "%s: Lock no expand advice is a per file descriptor advice, so when called from lfs, it does nothing.\n",
9183                         argv[0]);
9184                 return CMD_HELP;
9185         }
9186
9187         if (argc <= optind) {
9188                 fprintf(stderr, "%s: please give one or more file names\n",
9189                         argv[0]);
9190                 return CMD_HELP;
9191         }
9192
9193         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
9194                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
9195                         argv[0]);
9196                 return CMD_HELP;
9197         }
9198
9199         if (end == LUSTRE_EOF && length != 0)
9200                 end = start + length;
9201
9202         if (end <= start) {
9203                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
9204                         argv[0], start, end);
9205                 return CMD_HELP;
9206         }
9207
9208         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
9209                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
9210                         argv[0]);
9211                 return CMD_HELP;
9212         }
9213
9214         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
9215                 fprintf(stderr, "%s: mode is required with lockahead\n",
9216                         argv[0]);
9217                 return CMD_HELP;
9218         }
9219
9220         while (optind < argc) {
9221                 int rc2;
9222
9223                 path = argv[optind++];
9224
9225                 fd = open(path, O_RDONLY);
9226                 if (fd < 0) {
9227                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9228                                 argv[0], path, strerror(errno));
9229                         rc2 = -errno;
9230                         goto next;
9231                 }
9232
9233                 advice.lla_start = start;
9234                 advice.lla_end = end;
9235                 advice.lla_advice = advice_type;
9236                 advice.lla_value1 = 0;
9237                 advice.lla_value2 = 0;
9238                 advice.lla_value3 = 0;
9239                 advice.lla_value4 = 0;
9240                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
9241                         advice.lla_lockahead_mode = mode;
9242                         advice.lla_peradvice_flags = flags;
9243                 }
9244
9245                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
9246                 close(fd);
9247                 if (rc2 < 0) {
9248                         fprintf(stderr,
9249                                 "%s: cannot give advice '%s' to file '%s': %s\n",
9250                                 argv[0], ladvise_names[advice_type],
9251                                 path, strerror(errno));
9252
9253                         goto next;
9254                 }
9255
9256 next:
9257                 if (rc == 0 && rc2 < 0)
9258                         rc = rc2;
9259         }
9260         return rc;
9261 }
9262
9263 static const char *const heat_names[] = LU_HEAT_NAMES;
9264
9265 static int lfs_heat_get(int argc, char **argv)
9266 {
9267         struct lu_heat *heat;
9268         int rc = 0, rc2;
9269         char *path;
9270         int fd;
9271         int i;
9272
9273         if (argc <= 1)
9274                 return CMD_HELP;
9275
9276         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
9277         if (!heat) {
9278                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
9279                 return -ENOMEM;
9280         }
9281
9282         optind = 1;
9283         while (optind < argc) {
9284                 path = argv[optind++];
9285
9286                 fd = open(path, O_RDONLY);
9287                 if (fd < 0) {
9288                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9289                                 argv[0], path, strerror(errno));
9290                         rc2 = -errno;
9291                         goto next;
9292                 }
9293
9294                 heat->lh_count = OBD_HEAT_COUNT;
9295                 rc2 = llapi_heat_get(fd, heat);
9296                 close(fd);
9297                 if (rc2 < 0) {
9298                         fprintf(stderr,
9299                                 "%s: cannot get heat of file '%s': %s\n",
9300                                 argv[0], path, strerror(errno));
9301                         goto next;
9302                 }
9303
9304                 printf("flags: %x\n", heat->lh_flags);
9305                 for (i = 0; i < heat->lh_count; i++)
9306                         printf("%s: %llu\n", heat_names[i],
9307                                (unsigned long long)heat->lh_heat[i]);
9308 next:
9309                 if (rc == 0 && rc2 < 0)
9310                         rc = rc2;
9311         }
9312
9313         free(heat);
9314         return rc;
9315 }
9316
9317 static int lfs_heat_set(int argc, char **argv)
9318 {
9319         struct option long_opts[] = {
9320         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
9321         { .val = 'o',   .name = "off",          .has_arg = no_argument },
9322         { .val = 'O',   .name = "on",           .has_arg = no_argument },
9323         { .name = NULL } };
9324         enum lu_heat_flag flags = 0;
9325         int rc = 0, rc2;
9326         char *path;
9327         int fd;
9328         int c;
9329
9330         if (argc <= 1)
9331                 return CMD_HELP;
9332
9333         optind = 0;
9334         while ((c = getopt_long(argc, argv, "coO", long_opts, NULL)) != -1) {
9335                 switch (c) {
9336                 case 'c':
9337                         flags |= LU_HEAT_FLAG_CLEAR;
9338                         break;
9339                 case 'o':
9340                         flags |= LU_HEAT_FLAG_CLEAR;
9341                         flags |= LU_HEAT_FLAG_OFF;
9342                         break;
9343                 case 'O':
9344                         flags &= ~LU_HEAT_FLAG_OFF;
9345                         break;
9346                 case '?':
9347                         return CMD_HELP;
9348                 default:
9349                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9350                                 argv[0], argv[optind - 1]);
9351                         return CMD_HELP;
9352                 }
9353         }
9354
9355         if (argc <= optind) {
9356                 fprintf(stderr, "%s: please give one or more file names\n",
9357                         argv[0]);
9358                 return CMD_HELP;
9359         }
9360
9361         while (optind < argc) {
9362                 path = argv[optind++];
9363
9364                 fd = open(path, O_RDONLY);
9365                 if (fd < 0) {
9366                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9367                                 argv[0], path, strerror(errno));
9368                         rc2 = -errno;
9369                         goto next;
9370                 }
9371
9372                 rc2 = llapi_heat_set(fd, flags);
9373                 close(fd);
9374                 if (rc2 < 0) {
9375                         fprintf(stderr,
9376                                 "%s: cannot setflags heat of file '%s': %s\n",
9377                                 argv[0], path, strerror(errno));
9378                         goto next;
9379                 }
9380 next:
9381                 if (rc == 0 && rc2 < 0)
9382                         rc = rc2;
9383         }
9384         return rc;
9385 }
9386
9387 /**
9388  * The input string contains a comma delimited list of component ids and
9389  * ranges, for example "1,2-4,7".
9390  */
9391 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
9392 {
9393         bool end_of_loop = false;
9394         char *ptr = NULL;
9395         int nr = 0;
9396         int rc;
9397
9398         if (!arg)
9399                 return -EINVAL;
9400
9401         while (!end_of_loop) {
9402                 int start_index;
9403                 int end_index;
9404                 int i;
9405                 char *endptr = NULL;
9406
9407                 rc = -EINVAL;
9408                 ptr = strchrnul(arg, ',');
9409                 end_of_loop = *ptr == '\0';
9410                 *ptr = '\0';
9411
9412                 start_index = strtol(arg, &endptr, 0);
9413                 if (endptr == arg) /* no data at all */
9414                         break;
9415                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
9416                         break;
9417                 if (start_index < 0)
9418                         break;
9419
9420                 end_index = start_index;
9421                 if (*endptr == '-') {
9422                         end_index = strtol(endptr + 1, &endptr, 0);
9423                         if (*endptr != '\0')
9424                                 break;
9425                         if (end_index < start_index)
9426                                 break;
9427                 }
9428
9429                 for (i = start_index; i <= end_index && size > 0; i++) {
9430                         int j;
9431
9432                         /* remove duplicate */
9433                         for (j = 0; j < nr; j++) {
9434                                 if (ids[j] == i)
9435                                         break;
9436                         }
9437                         if (j == nr) { /* no duplicate */
9438                                 ids[nr++] = i;
9439                                 --size;
9440                         }
9441                 }
9442
9443                 if (size == 0 && i < end_index)
9444                         break;
9445
9446                 *ptr = ',';
9447                 arg = ++ptr;
9448                 rc = 0;
9449         }
9450         if (!end_of_loop && ptr)
9451                 *ptr = ',';
9452
9453         return rc < 0 ? rc : nr;
9454 }
9455
9456 /**
9457  * struct verify_mirror_id - Mirror id to be verified.
9458  * @mirror_id:   A specified mirror id.
9459  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
9460  */
9461 struct verify_mirror_id {
9462         __u16 mirror_id;
9463         bool is_valid_id;
9464 };
9465
9466 /**
9467  * compare_mirror_ids() - Compare mirror ids.
9468  * @layout: Mirror component list.
9469  * @cbdata: Callback data in verify_mirror_id structure.
9470  *
9471  * This is a callback function called by llapi_layout_comp_iterate()
9472  * to compare the specified mirror id with the one in the current
9473  * component of @layout. If they are the same, then the specified
9474  * mirror id is valid.
9475  *
9476  * Return: a negative error code on failure or
9477  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
9478  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
9479  */
9480 static inline
9481 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
9482 {
9483         struct verify_mirror_id *mirror_id_cbdata =
9484                                  (struct verify_mirror_id *)cbdata;
9485         uint32_t mirror_id;
9486         int rc = 0;
9487
9488         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9489         if (rc < 0) {
9490                 rc = -errno;
9491                 fprintf(stderr,
9492                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9493                         progname, strerror(errno));
9494                 return rc;
9495         }
9496
9497         if (mirror_id_cbdata->mirror_id == mirror_id) {
9498                 mirror_id_cbdata->is_valid_id = true;
9499                 return LLAPI_LAYOUT_ITER_STOP;
9500         }
9501
9502         return LLAPI_LAYOUT_ITER_CONT;
9503 }
9504
9505 /**
9506  * verify_mirror_ids() - Verify specified mirror ids.
9507  * @fname:      Mirrored file name.
9508  * @mirror_ids: Specified mirror ids to be verified.
9509  * @ids_nr:     Number of specified mirror ids.
9510  *
9511  * This function verifies that specified @mirror_ids are valid
9512  * in the mirrored file @fname.
9513  *
9514  * Return: 0 on success or a negative error code on failure.
9515  */
9516 static inline
9517 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
9518 {
9519         struct llapi_layout *layout = NULL;
9520         struct verify_mirror_id mirror_id_cbdata = { 0 };
9521         struct stat stbuf;
9522         uint32_t flr_state;
9523         int i;
9524         int fd;
9525         int rc = 0;
9526         int rc2 = 0;
9527
9528         if (ids_nr <= 0)
9529                 return -EINVAL;
9530
9531         if (stat(fname, &stbuf) < 0) {
9532                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9533                         progname, fname, strerror(errno));
9534                 rc = -errno;
9535                 goto error;
9536         }
9537
9538         if (!S_ISREG(stbuf.st_mode)) {
9539                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9540                         progname, fname);
9541                 rc = -EINVAL;
9542                 goto error;
9543         }
9544
9545         fd = open(fname, O_DIRECT | O_RDONLY);
9546         if (fd < 0) {
9547                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9548                         progname, fname, strerror(errno));
9549                 rc = -errno;
9550                 goto error;
9551         }
9552
9553         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
9554         if (rc < 0) {
9555                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
9556                         progname, fname, strerror(errno));
9557                 goto close_fd;
9558         }
9559
9560         layout = llapi_layout_get_by_fd(fd, 0);
9561         if (!layout) {
9562                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9563                         progname, fname, strerror(errno));
9564                 rc = -errno;
9565                 llapi_lease_release(fd);
9566                 goto close_fd;
9567         }
9568
9569         rc = llapi_layout_flags_get(layout, &flr_state);
9570         if (rc < 0) {
9571                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9572                         progname, fname, strerror(errno));
9573                 rc = -errno;
9574                 goto free_layout;
9575         }
9576
9577         flr_state &= LCM_FL_FLR_MASK;
9578         switch (flr_state) {
9579         case LCM_FL_NONE:
9580                 rc = -EINVAL;
9581                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
9582                         progname, fname, llapi_layout_flags_string(flr_state));
9583                 goto free_layout;
9584         default:
9585                 break;
9586         }
9587
9588         rc2 = 0;
9589         for (i = 0; i < ids_nr; i++) {
9590                 mirror_id_cbdata.mirror_id = mirror_ids[i];
9591                 mirror_id_cbdata.is_valid_id = false;
9592
9593                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
9594                                                &mirror_id_cbdata);
9595                 if (rc < 0) {
9596                         rc = -errno;
9597                         fprintf(stderr,
9598                                 "%s: '%s' failed to verify mirror id: %u.\n",
9599                                 progname, fname, mirror_ids[i]);
9600                         goto free_layout;
9601                 }
9602
9603                 if (!mirror_id_cbdata.is_valid_id) {
9604                         rc2 = -EINVAL;
9605                         fprintf(stderr,
9606                                 "%s: '%s' invalid specified mirror id: %u.\n",
9607                                 progname, fname, mirror_ids[i]);
9608                 }
9609         }
9610         rc = rc2;
9611
9612 free_layout:
9613         llapi_layout_free(layout);
9614         llapi_lease_release(fd);
9615 close_fd:
9616         close(fd);
9617 error:
9618         return rc;
9619 }
9620
9621 static inline
9622 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
9623                            __u16 *mirror_ids, int ids_nr)
9624 {
9625         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9626         struct llapi_layout *layout;
9627         struct stat stbuf;
9628         uint32_t flr_state;
9629         uint64_t start;
9630         uint64_t end;
9631         int comp_size = 0;
9632         int idx;
9633         int fd;
9634         int rc;
9635         int rc2;
9636
9637         if (stat(fname, &stbuf) < 0) {
9638                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9639                         progname, fname, strerror(errno));
9640                 rc = -errno;
9641                 goto error;
9642         }
9643         if (!S_ISREG(stbuf.st_mode)) {
9644                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9645                         progname, fname);
9646                 rc = -EINVAL;
9647                 goto error;
9648         }
9649
9650         fd = open(fname, O_DIRECT | O_RDWR);
9651         if (fd < 0) {
9652                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9653                         progname, fname, strerror(errno));
9654                 rc = -errno;
9655                 goto error;
9656         }
9657
9658         layout = llapi_layout_get_by_fd(fd, 0);
9659         if (!layout) {
9660                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9661                         progname, fname, strerror(errno));
9662                 rc = -errno;
9663                 goto close_fd;
9664         }
9665
9666         rc = llapi_layout_flags_get(layout, &flr_state);
9667         if (rc) {
9668                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9669                         progname, fname, strerror(errno));
9670                 rc = -errno;
9671                 goto free_layout;
9672         }
9673
9674         flr_state &= LCM_FL_FLR_MASK;
9675         if (flr_state == LCM_FL_NONE) {
9676                 rc = -EINVAL;
9677                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
9678                         progname, fname);
9679                 goto free_layout;
9680         }
9681
9682         /* get stale component info */
9683         comp_size = llapi_mirror_find_stale(layout, comp_array,
9684                                             ARRAY_SIZE(comp_array),
9685                                             mirror_ids, ids_nr);
9686         if (comp_size <= 0) {
9687                 rc = comp_size;
9688                 goto free_layout;
9689         }
9690
9691         ioc->lil_mode = LL_LEASE_WRLCK;
9692         ioc->lil_flags = LL_LEASE_RESYNC;
9693         rc = llapi_lease_set(fd, ioc);
9694         if (rc < 0) {
9695                 if (rc == -EALREADY)
9696                         rc = 0;
9697                 else
9698                         fprintf(stderr,
9699                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
9700                                 progname, fname, strerror(-rc));
9701                 goto free_layout;
9702         }
9703
9704         /* get the read range [start, end) */
9705         start = comp_array[0].lrc_start;
9706         end = comp_array[0].lrc_end;
9707         for (idx = 1; idx < comp_size; idx++) {
9708                 if (comp_array[idx].lrc_start < start)
9709                         start = comp_array[idx].lrc_start;
9710                 if (end < comp_array[idx].lrc_end)
9711                         end = comp_array[idx].lrc_end;
9712         }
9713
9714         rc = llapi_lease_check(fd);
9715         if (rc != LL_LEASE_WRLCK) {
9716                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
9717                         progname, fname);
9718                 goto free_layout;
9719         }
9720
9721         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
9722                                       start, end);
9723         if (rc < 0)
9724                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
9725                         progname, fname, strerror(-rc));
9726
9727         /* need to do the lease unlock even resync fails */
9728         ioc->lil_mode = LL_LEASE_UNLCK;
9729         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
9730         ioc->lil_count = 0;
9731         for (idx = 0; idx < comp_size; idx++) {
9732                 if (comp_array[idx].lrc_synced) {
9733                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
9734                         ioc->lil_count++;
9735                 }
9736         }
9737
9738         rc2 = llapi_lease_set(fd, ioc);
9739         /**
9740          * llapi_lease_set returns lease mode when it request to unlock
9741          * the lease lock.
9742          */
9743         if (rc2 <= 0) {
9744                 /* rc2 == 0 means lost lease lock */
9745                 if (rc2 == 0 && rc == 0)
9746                         rc = -EBUSY;
9747                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
9748                         progname, fname,
9749                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
9750         }
9751
9752 free_layout:
9753         llapi_layout_free(layout);
9754 close_fd:
9755         close(fd);
9756 error:
9757         return rc;
9758 }
9759
9760 static inline int lfs_mirror_resync(int argc, char **argv)
9761 {
9762         struct ll_ioc_lease *ioc = NULL;
9763         __u16 mirror_ids[128] = { 0 };
9764         int ids_nr = 0;
9765         int c;
9766         int rc = 0;
9767
9768         struct option long_opts[] = {
9769         { .val = 'o',   .name = "only",         .has_arg = required_argument },
9770         { .name = NULL } };
9771
9772         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
9773                 switch (c) {
9774                 case 'o':
9775                         rc = parse_mirror_ids(mirror_ids,
9776                                         sizeof(mirror_ids) / sizeof(__u16),
9777                                         optarg);
9778                         if (rc < 0) {
9779                                 fprintf(stderr,
9780                                         "%s: bad mirror ids '%s'.\n",
9781                                         argv[0], optarg);
9782                                 goto error;
9783                         }
9784                         ids_nr = rc;
9785                         break;
9786                 default:
9787                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
9788                                 argv[0], argv[optind - 1]);
9789                         rc = -EINVAL;
9790                         goto error;
9791                 }
9792         }
9793
9794         if (argc == optind) {
9795                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
9796                 rc = CMD_HELP;
9797                 goto error;
9798         }
9799
9800         if (ids_nr > 0 && argc > optind + 1) {
9801                 fprintf(stderr,
9802                     "%s: option '--only' cannot be used upon multiple files.\n",
9803                         argv[0]);
9804                 rc = CMD_HELP;
9805                 goto error;
9806         }
9807
9808         if (ids_nr > 0) {
9809                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
9810                 if (rc < 0)
9811                         goto error;
9812         }
9813
9814         /* set the lease on the file */
9815         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9816         if (!ioc) {
9817                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
9818                         argv[0], strerror(errno));
9819                 rc = -errno;
9820                 goto error;
9821         }
9822
9823         for (; optind < argc; optind++) {
9824                 rc = lfs_mirror_resync_file(argv[optind], ioc,
9825                                             mirror_ids, ids_nr);
9826                 /* ignore previous file's error, continue with next file */
9827
9828                 /* reset ioc */
9829                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
9830         }
9831
9832         free(ioc);
9833 error:
9834         return rc;
9835 }
9836
9837 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
9838 {
9839         struct llapi_layout *layout;
9840         int rc;
9841
9842         layout = llapi_layout_get_by_fd(fd, 0);
9843         if (!layout) {
9844                 fprintf(stderr, "could not get layout.\n");
9845                 return  -EINVAL;
9846         }
9847
9848         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
9849         if (rc < 0) {
9850                 fprintf(stderr, "failed to iterate layout\n");
9851                 llapi_layout_free(layout);
9852
9853                 return rc;
9854         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
9855                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
9856                 llapi_layout_free(layout);
9857
9858                 return -EINVAL;
9859         }
9860         llapi_layout_free(layout);
9861
9862         return 0;
9863 }
9864
9865 /**
9866  * Check whether two files are the same file
9867  * \retval      0  same file
9868  * \retval      1  not the same file
9869  * \retval      <0 error code
9870  */
9871 static inline int check_same_file(int fd, const char *f2)
9872 {
9873         struct stat stbuf1;
9874         struct stat stbuf2;
9875
9876         if (fstat(fd, &stbuf1) < 0)
9877                 return -errno;
9878
9879         if (stat(f2, &stbuf2) < 0)
9880                 return 1;
9881
9882         if (stbuf1.st_rdev == stbuf2.st_rdev &&
9883             stbuf1.st_ino == stbuf2.st_ino)
9884                 return 0;
9885
9886         return 1;
9887 }
9888
9889 static inline int lfs_mirror_read(int argc, char **argv)
9890 {
9891         int rc = CMD_HELP;
9892         __u16 mirror_id = 0;
9893         const char *outfile = NULL;
9894         char *fname;
9895         int fd = 0;
9896         int outfd;
9897         int c;
9898         void *buf;
9899         const size_t buflen = 4 << 20;
9900         off_t pos;
9901         struct option long_opts[] = {
9902         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
9903         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
9904         { .name = NULL } };
9905
9906         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
9907                 char *end;
9908
9909                 switch (c) {
9910                 case 'N':
9911                         mirror_id = strtoul(optarg, &end, 0);
9912                         if (*end != '\0' || mirror_id == 0) {
9913                                 fprintf(stderr,
9914                                         "%s %s: invalid mirror ID '%s'\n",
9915                                         progname, argv[0], optarg);
9916                                 return rc;
9917                         }
9918                         break;
9919                 case 'o':
9920                         outfile = optarg;
9921                         break;
9922                 default:
9923                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9924                                 progname, argv[optind - 1]);
9925                         return -EINVAL;
9926                 }
9927         }
9928
9929         if (argc == optind) {
9930                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9931                         progname, argv[0]);
9932                 return rc;
9933         } else if (argc > optind + 1) {
9934                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9935                 return rc;
9936         }
9937
9938         if (mirror_id == 0) {
9939                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9940                         progname, argv[0]);
9941                 return rc;
9942         }
9943
9944         /* open mirror file */
9945         fname = argv[optind];
9946         fd = open(fname, O_DIRECT | O_RDONLY);
9947         if (fd < 0) {
9948                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9949                         progname, argv[0], fname, strerror(errno));
9950                 return rc;
9951         }
9952
9953         /* verify mirror id */
9954         rc = verify_mirror_id_by_fd(fd, mirror_id);
9955         if (rc) {
9956                 fprintf(stderr,
9957                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9958                         progname, argv[0], mirror_id, fname);
9959                 goto close_fd;
9960         }
9961
9962         /* open output file - O_EXCL ensures output is not the same as input */
9963         if (outfile) {
9964                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
9965                 if (outfd < 0) {
9966                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
9967                                 progname, argv[0], outfile, strerror(errno));
9968                         rc = -errno;
9969                         goto close_fd;
9970                 }
9971         } else {
9972                 outfd = STDOUT_FILENO;
9973         }
9974
9975         /* allocate buffer */
9976         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
9977         if (rc) {
9978                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9979                                 progname, argv[0], rc);
9980                 goto close_outfd;
9981         }
9982
9983         pos = 0;
9984         while (1) {
9985                 ssize_t bytes_read;
9986                 ssize_t written = 0;
9987
9988                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
9989                 if (bytes_read < 0) {
9990                         rc = bytes_read;
9991                         fprintf(stderr,
9992                                 "%s %s: fail to read data from mirror %u: %s\n",
9993                                 progname, argv[0], mirror_id, strerror(-rc));
9994                         goto free_buf;
9995                 }
9996
9997                 /* EOF reached */
9998                 if (bytes_read == 0)
9999                         break;
10000
10001                 while (written < bytes_read) {
10002                         ssize_t written2;
10003
10004                         written2 = write(outfd, buf + written,
10005                                          bytes_read - written);
10006                         if (written2 < 0) {
10007                                 fprintf(stderr,
10008                                         "%s %s: fail to write %s: %s\n",
10009                                         progname, argv[0], outfile ? : "STDOUT",
10010                                         strerror(errno));
10011                                 rc = -errno;
10012                                 goto free_buf;
10013                         }
10014                         written += written2;
10015                 }
10016
10017                 if (written != bytes_read) {
10018                         fprintf(stderr,
10019                 "%s %s: written %ld bytes does not match with %ld read.\n",
10020                                 progname, argv[0], written, bytes_read);
10021                         rc = -EIO;
10022                         goto free_buf;
10023                 }
10024
10025                 pos += bytes_read;
10026         }
10027
10028         fsync(outfd);
10029         rc = 0;
10030
10031 free_buf:
10032         free(buf);
10033 close_outfd:
10034         if (outfile)
10035                 close(outfd);
10036 close_fd:
10037         close(fd);
10038
10039         return rc;
10040 }
10041
10042 static inline int lfs_mirror_write(int argc, char **argv)
10043 {
10044         int rc = CMD_HELP;
10045         __u16 mirror_id = 0;
10046         const char *inputfile = NULL;
10047         char *fname;
10048         int fd = 0;
10049         int inputfd;
10050         int c;
10051         void *buf;
10052         const size_t buflen = 4 << 20;
10053         off_t pos;
10054         size_t page_size = sysconf(_SC_PAGESIZE);
10055         struct ll_ioc_lease_id ioc;
10056
10057         struct option long_opts[] = {
10058         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10059         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
10060         { .name = NULL } };
10061
10062         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
10063                 char *end;
10064
10065                 switch (c) {
10066                 case 'N':
10067                         mirror_id = strtoul(optarg, &end, 0);
10068                         if (*end != '\0' || mirror_id == 0) {
10069                                 fprintf(stderr,
10070                                         "%s %s: invalid mirror ID '%s'\n",
10071                                         progname, argv[0], optarg);
10072                                 return rc;
10073                         }
10074                         break;
10075                 case 'i':
10076                         inputfile = optarg;
10077                         break;
10078                 default:
10079                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10080                                 progname, argv[optind - 1]);
10081                         return -EINVAL;
10082                 }
10083         }
10084
10085         if (argc == optind) {
10086                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10087                         progname, argv[0]);
10088                 return rc;
10089         } else if (argc > optind + 1) {
10090                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10091                 return rc;
10092         }
10093
10094         if (mirror_id == 0) {
10095                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
10096                         progname, argv[0]);
10097                 return rc;
10098         }
10099
10100         /* open mirror file */
10101         fname = argv[optind];
10102         fd = open(fname, O_DIRECT | O_WRONLY);
10103         if (fd < 0) {
10104                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10105                         progname, argv[0], fname, strerror(errno));
10106                 return rc;
10107         }
10108
10109         /* verify mirror id */
10110         rc = verify_mirror_id_by_fd(fd, mirror_id);
10111         if (rc) {
10112                 fprintf(stderr,
10113                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10114                         progname, argv[0], mirror_id, fname);
10115                 goto close_fd;
10116         }
10117
10118         /* open input file */
10119         if (inputfile) {
10120                 rc = check_same_file(fd, inputfile);
10121                 if (rc == 0) {
10122                         fprintf(stderr,
10123                         "%s %s: input file cannot be the mirrored file\n",
10124                                 progname, argv[0]);
10125                         goto close_fd;
10126                 }
10127                 if (rc < 0)
10128                         goto close_fd;
10129
10130                 inputfd = open(inputfile, O_RDONLY, 0644);
10131                 if (inputfd < 0) {
10132                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
10133                                 progname, argv[0], inputfile, strerror(errno));
10134                         rc = -errno;
10135                         goto close_fd;
10136                 }
10137         } else {
10138                 inputfd = STDIN_FILENO;
10139         }
10140
10141         /* allocate buffer */
10142         rc = posix_memalign(&buf, page_size, buflen);
10143         if (rc) {
10144                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
10145                         progname, argv[0], rc);
10146                 goto close_inputfd;
10147         }
10148
10149         /* prepare target mirror components instantiation */
10150         ioc.lil_mode = LL_LEASE_WRLCK;
10151         ioc.lil_flags = LL_LEASE_RESYNC;
10152         ioc.lil_mirror_id = mirror_id;
10153         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
10154         if (rc < 0) {
10155                 fprintf(stderr,
10156                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
10157                         progname, argv[0], fname, strerror(errno));
10158                 goto free_buf;
10159         }
10160
10161         pos = 0;
10162         while (1) {
10163                 ssize_t bytes_read;
10164                 ssize_t written;
10165                 size_t to_write;
10166
10167                 rc = llapi_lease_check(fd);
10168                 if (rc != LL_LEASE_WRLCK) {
10169                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
10170                                 progname, argv[0], fname);
10171                         goto free_buf;
10172                 }
10173
10174                 bytes_read = read(inputfd, buf, buflen);
10175                 if (bytes_read < 0) {
10176                         rc = bytes_read;
10177                         fprintf(stderr,
10178                                 "%s %s: fail to read data from '%s': %s\n",
10179                                 progname, argv[0], inputfile ? : "STDIN",
10180                                 strerror(errno));
10181                         rc = -errno;
10182                         goto free_buf;
10183                 }
10184
10185                 /* EOF reached */
10186                 if (bytes_read == 0)
10187                         break;
10188
10189                 /* round up to page align to make direct IO happy. */
10190                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
10191
10192                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
10193                                              pos);
10194                 if (written < 0) {
10195                         rc = written;
10196                         fprintf(stderr,
10197                               "%s %s: fail to write to mirror %u: %s\n",
10198                                 progname, argv[0], mirror_id,
10199                                 strerror(-rc));
10200                         goto free_buf;
10201                 }
10202
10203                 pos += bytes_read;
10204         }
10205
10206         if (pos & (page_size - 1)) {
10207                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
10208                 if (rc < 0)
10209                         goto free_buf;
10210         }
10211
10212         ioc.lil_mode = LL_LEASE_UNLCK;
10213         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
10214         ioc.lil_count = 0;
10215         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
10216         if (rc <= 0) {
10217                 if (rc == 0)
10218                         rc = -EBUSY;
10219                 fprintf(stderr,
10220                         "%s %s: release lease lock of '%s' failed: %s\n",
10221                         progname, argv[0], fname, strerror(errno));
10222                 goto free_buf;
10223         }
10224
10225         rc = 0;
10226
10227 free_buf:
10228         free(buf);
10229 close_inputfd:
10230         if (inputfile)
10231                 close(inputfd);
10232 close_fd:
10233         close(fd);
10234
10235         return rc;
10236 }
10237
10238 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
10239 {
10240         struct llapi_layout *layout;
10241         struct collect_ids_data cid = { .cid_ids = ids,
10242                                         .cid_count = 0,
10243                                         .cid_exclude = exclude_id, };
10244         int rc;
10245
10246         layout = llapi_layout_get_by_fd(fd, 0);
10247         if (!layout) {
10248                 fprintf(stderr, "could not get layout\n");
10249                 return -EINVAL;
10250         }
10251
10252         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
10253         if (rc < 0) {
10254                 fprintf(stderr, "failed to iterate layout\n");
10255                 llapi_layout_free(layout);
10256
10257                 return rc;
10258         }
10259         llapi_layout_free(layout);
10260
10261         return cid.cid_count;
10262 }
10263
10264 static inline int lfs_mirror_copy(int argc, char **argv)
10265 {
10266         int rc = CMD_HELP;
10267         __u16 read_mirror_id = 0;
10268         __u16 ids[128] = { 0 };
10269         int count = 0;
10270         struct llapi_layout *layout = NULL;
10271         struct llapi_resync_comp comp_array[1024] = { { 0 } };
10272         int comp_size = 0;
10273         char *fname;
10274         int fd = 0;
10275         int c;
10276         int i;
10277         ssize_t copied;
10278         struct ll_ioc_lease *ioc = NULL;
10279         struct ll_ioc_lease_id *resync_ioc;
10280
10281         struct option long_opts[] = {
10282         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
10283         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
10284         { .name = NULL } };
10285
10286         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
10287                 char *end;
10288
10289                 switch (c) {
10290                 case 'i':
10291                         read_mirror_id = strtoul(optarg, &end, 0);
10292                         if (*end != '\0' || read_mirror_id == 0) {
10293                                 fprintf(stderr,
10294                                         "%s %s: invalid read mirror ID '%s'\n",
10295                                         progname, argv[0], optarg);
10296                                 return rc;
10297                         }
10298                         break;
10299                 case 'o':
10300                         if (!strcmp(optarg, "-1")) {
10301                                 /* specify all other mirrors */
10302                                 ids[0] = (__u16)-1;
10303                                 count = 1;
10304                         } else {
10305                                 count = parse_mirror_ids((__u16 *)ids,
10306                                                          ARRAY_SIZE(ids),
10307                                                          optarg);
10308                                 if (count < 0)
10309                                         return rc;
10310                         }
10311                         break;
10312                 default:
10313                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10314                                 progname, argv[optind - 1]);
10315                         return -EINVAL;
10316                 }
10317         }
10318
10319         if (argc == optind) {
10320                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10321                         progname, argv[0]);
10322                 return rc;
10323         } else if (argc > optind + 1) {
10324                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10325                 return rc;
10326         }
10327
10328         if (read_mirror_id == 0) {
10329                 fprintf(stderr,
10330                         "%s %s: no valid read mirror ID %d is provided\n",
10331                         progname, argv[0], read_mirror_id);
10332                 return rc;
10333         }
10334
10335         if (count == 0) {
10336                 fprintf(stderr,
10337                         "%s %s: no write mirror ID is provided\n",
10338                         progname, argv[0]);
10339                 return rc;
10340         }
10341
10342         for (i = 0; i < count; i++) {
10343                 if (read_mirror_id == ids[i]) {
10344                         fprintf(stderr,
10345                         "%s %s: read and write mirror ID cannot be the same\n",
10346                                 progname, argv[0]);
10347                         return rc;
10348                 }
10349         }
10350
10351         /* open mirror file */
10352         fname = argv[optind];
10353
10354         fd = open(fname, O_DIRECT | O_RDWR);
10355         if (fd < 0) {
10356                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10357                         progname, argv[0], fname, strerror(errno));
10358                 return rc;
10359         }
10360
10361         /* write to all other mirrors */
10362         if (ids[0] == (__u16)-1) {
10363                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
10364                 if (count <= 0) {
10365                         rc = count;
10366                         fprintf(stderr,
10367                         "%s %s: failed to get other mirror ids in '%s': %d\n",
10368                                 progname, argv[0], fname, rc);
10369                         goto close_fd;
10370                 }
10371         }
10372
10373         /* verify mirror id */
10374         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
10375         if (rc) {
10376                 fprintf(stderr,
10377                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10378                         progname, argv[0], read_mirror_id, fname);
10379                 goto close_fd;
10380         }
10381
10382         for (i = 0; i < count; i++) {
10383                 rc = verify_mirror_id_by_fd(fd, ids[i]);
10384                 if (rc) {
10385                         fprintf(stderr,
10386                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10387                                 progname, argv[0], ids[i], fname);
10388                         goto close_fd;
10389                 }
10390         }
10391
10392         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10393         if (!ioc) {
10394                 fprintf(stderr,
10395                         "%s %s: cannot alloc comp id array for ioc: %s\n",
10396                         progname, argv[0], strerror(errno));
10397                 rc = -errno;
10398                 goto close_fd;
10399         }
10400
10401         /* get stale component info */
10402         layout = llapi_layout_get_by_fd(fd, 0);
10403         if (!layout) {
10404                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
10405                         progname, argv[0], fname, strerror(errno));
10406                 rc = -errno;
10407                 goto free_ioc;
10408         }
10409         comp_size = llapi_mirror_find_stale(layout, comp_array,
10410                                             ARRAY_SIZE(comp_array),
10411                                             ids, count);
10412         llapi_layout_free(layout);
10413         if (comp_size < 0) {
10414                 rc = comp_size;
10415                 goto free_ioc;
10416         }
10417
10418         /* prepare target mirror components instantiation */
10419         resync_ioc = (struct ll_ioc_lease_id *)ioc;
10420         resync_ioc->lil_mode = LL_LEASE_WRLCK;
10421         resync_ioc->lil_flags = LL_LEASE_RESYNC;
10422         if (count == 1)
10423                 resync_ioc->lil_mirror_id = ids[0];
10424         else
10425                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
10426         rc = llapi_lease_set(fd, ioc);
10427         if (rc < 0) {
10428                 fprintf(stderr,
10429                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
10430                         progname, argv[0], fname, strerror(errno));
10431                 goto free_ioc;
10432         }
10433
10434         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
10435         if (copied < 0) {
10436                 rc = copied;
10437                 fprintf(stderr, "%s %s: copy error: %d\n",
10438                         progname, argv[0], rc);
10439                 goto free_ioc;
10440         }
10441
10442         fprintf(stdout, "mirror copied successfully: ");
10443         for (i = 0; i < copied; i++)
10444                 fprintf(stdout, "%d ", ids[i]);
10445         fprintf(stdout, "\n");
10446
10447         ioc->lil_mode = LL_LEASE_UNLCK;
10448         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10449         ioc->lil_count = 0;
10450         for (i = 0; i < comp_size; i++) {
10451                 int j;
10452
10453                 for (j = 0; j < copied; j++) {
10454                         if (comp_array[i].lrc_mirror_id != ids[j])
10455                                 continue;
10456
10457                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
10458                         ioc->lil_count++;
10459                 }
10460         }
10461         rc = llapi_lease_set(fd, ioc);
10462         if (rc <= 0) {
10463                 if (rc == 0)
10464                         rc = -EBUSY;
10465                 fprintf(stderr,
10466                         "%s %s: release lease lock of '%s' failed: %s\n",
10467                         progname, argv[0], fname, strerror(errno));
10468                 goto free_ioc;
10469         }
10470
10471         rc = 0;
10472
10473 free_ioc:
10474         free(ioc);
10475 close_fd:
10476         close(fd);
10477
10478         return rc;
10479 }
10480
10481 /**
10482  * struct verify_chunk - Mirror chunk to be verified.
10483  * @chunk:        [start, end) of the chunk.
10484  * @mirror_count: Number of mirror ids in @mirror_id array.
10485  * @mirror_id:    Array of valid mirror ids that cover the chunk.
10486  */
10487 struct verify_chunk {
10488         struct lu_extent chunk;
10489         unsigned int mirror_count;
10490         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
10491 };
10492
10493 /**
10494  * print_chunks() - Print chunk information.
10495  * @fname:       Mirrored file name.
10496  * @chunks:      Array of chunks.
10497  * @chunk_count: Number of chunks in @chunks array.
10498  *
10499  * This function prints [start, end) of each chunk in @chunks
10500  * for mirrored file @fname, and also prints the valid mirror ids
10501  * that cover the chunk.
10502  *
10503  * Return: void.
10504  */
10505 static inline
10506 void print_chunks(const char *fname, struct verify_chunk *chunks,
10507                   int chunk_count)
10508 {
10509         int i;
10510         int j;
10511
10512         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
10513         for (i = 0; i < chunk_count; i++) {
10514                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
10515
10516                 if (chunks[i].mirror_count == 0)
10517                         fprintf(stdout, "\t[");
10518                 else {
10519                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
10520                         for (j = 1; j < chunks[i].mirror_count; j++)
10521                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
10522                 }
10523                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
10524         }
10525         fprintf(stdout, "\n");
10526 }
10527
10528 /**
10529  * print_checksums() - Print CRC-32 checksum values.
10530  * @chunk: A chunk and its corresponding valid mirror ids.
10531  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
10532  *
10533  * This function prints CRC-32 checksum values on @chunk for
10534  * each valid mirror that covers it.
10535  *
10536  * Return: void.
10537  */
10538 static inline
10539 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
10540 {
10541         int i;
10542
10543         fprintf(stdout,
10544                 "CRC-32 checksum value for chunk "DEXT":\n",
10545                 PEXT(&chunk->chunk));
10546         for (i = 0; i < chunk->mirror_count; i++)
10547                 fprintf(stdout, "Mirror %u:\t%#lx\n",
10548                         chunk->mirror_id[i], crc[i]);
10549         fprintf(stdout, "\n");
10550 }
10551
10552 /**
10553  * filter_mirror_id() - Filter specified mirror ids.
10554  * @chunks:      Array of chunks.
10555  * @chunk_count: Number of chunks in @chunks array.
10556  * @mirror_ids:  Specified mirror ids to be verified.
10557  * @ids_nr:      Number of specified mirror ids.
10558  *
10559  * This function scans valid mirror ids that cover each chunk in @chunks
10560  * and filters specified mirror ids.
10561  *
10562  * Return: void.
10563  */
10564 static inline
10565 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
10566                       __u16 *mirror_ids, int ids_nr)
10567 {
10568         int i;
10569         int j;
10570         int k;
10571         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10572         unsigned int valid_count = 0;
10573
10574         for (i = 0; i < chunk_count; i++) {
10575                 if (chunks[i].mirror_count == 0)
10576                         continue;
10577
10578                 valid_count = 0;
10579                 for (j = 0; j < ids_nr; j++) {
10580                         for (k = 0; k < chunks[i].mirror_count; k++) {
10581                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
10582                                         valid_id[valid_count] = mirror_ids[j];
10583                                         valid_count++;
10584                                         break;
10585                                 }
10586                         }
10587                 }
10588
10589                 memcpy(chunks[i].mirror_id, valid_id,
10590                        sizeof(__u16) * valid_count);
10591                 chunks[i].mirror_count = valid_count;
10592         }
10593 }
10594
10595 /**
10596  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
10597  * @layout:      Mirror component list.
10598  * @chunks:      Array of chunks.
10599  * @chunks_size: Array size of @chunks.
10600  *
10601  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
10602  * to find out chunk segments and store them in @chunks array.
10603  *
10604  * The @mirror_id array in each element of @chunks will store the valid
10605  * mirror ids that cover the chunk. If a mirror component covering the
10606  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
10607  * will not be stored into the @mirror_id array, and the chunk for that
10608  * mirror will not be verified.
10609  *
10610  * The @mirror_count in each element of @chunks will store the number of
10611  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
10612  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
10613  * indicates the chunk is valid in only one mirror. In both cases, the
10614  * chunk will not be verified.
10615  *
10616  * Here is an example:
10617  *
10618  *  0      1M     2M     3M     4M           EOF
10619  *  +------+-------------+--------------------+
10620  *  |      |             |      S             |       mirror1
10621  *  +------+------+------+------+-------------+
10622  *  |             |   S  |   S  |             |       mirror2
10623  *  +-------------+------+------+-------------+
10624  *
10625  * prepared @chunks array will contain 5 elements:
10626  * (([0, 1M), [1, 2], 2),
10627  *  ([1M, 2M), [1, 2], 2),
10628  *  ([2M, 3M), [1], 1),
10629  *  ([3M, 4M], [], 0),
10630  *  ([4M, EOF), [2], 1))
10631  *
10632  * Return: the actual array size of @chunks on success
10633  *         or a negative error code on failure.
10634  */
10635 static inline
10636 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
10637                              struct verify_chunk *chunks,
10638                              size_t chunks_size)
10639 {
10640         uint64_t start;
10641         uint64_t end;
10642         uint32_t mirror_id;
10643         uint32_t flags;
10644         int idx = 0;
10645         int i = 0;
10646         int rc = 0;
10647
10648         memset(chunks, 0, sizeof(*chunks) * chunks_size);
10649
10650         while (1) {
10651                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
10652                 if (rc < 0) {
10653                         fprintf(stderr,
10654                                 "%s: move to the first layout component: %s.\n",
10655                                 progname, strerror(errno));
10656                         goto error;
10657                 }
10658
10659                 i = 0;
10660                 rc = 0;
10661                 chunks[idx].chunk.e_end = LUSTRE_EOF;
10662                 while (rc == 0) {
10663                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
10664                         if (rc < 0) {
10665                                 fprintf(stderr,
10666                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
10667                                         progname, strerror(errno));
10668                                 goto error;
10669                         }
10670
10671                         if (start > chunks[idx].chunk.e_start ||
10672                             end <= chunks[idx].chunk.e_start)
10673                                 goto next;
10674
10675                         if (end < chunks[idx].chunk.e_end)
10676                                 chunks[idx].chunk.e_end = end;
10677
10678                         rc = llapi_layout_comp_flags_get(layout, &flags);
10679                         if (rc < 0) {
10680                                 fprintf(stderr,
10681                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
10682                                         progname, strerror(errno));
10683                                 goto error;
10684                         }
10685
10686                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
10687                                 goto next;
10688
10689                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10690                         if (rc < 0) {
10691                                 fprintf(stderr,
10692                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10693                                         progname, strerror(errno));
10694                                 goto error;
10695                         }
10696
10697                         chunks[idx].mirror_id[i] = mirror_id;
10698                         i++;
10699                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
10700                                 fprintf(stderr,
10701                                         "%s: mirror_id array is too small.\n",
10702                                         progname);
10703                                 rc = -EINVAL;
10704                                 goto error;
10705                         }
10706
10707 next:
10708                         rc = llapi_layout_comp_use(layout,
10709                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
10710                         if (rc < 0) {
10711                                 fprintf(stderr,
10712                                         "%s: move to the next layout component: %s.\n",
10713                                         progname, strerror(errno));
10714                                 goto error;
10715                         }
10716                 } /* loop through all components */
10717
10718                 chunks[idx].mirror_count = i;
10719
10720                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
10721                         break;
10722
10723                 idx++;
10724                 if (idx >= chunks_size) {
10725                         fprintf(stderr, "%s: chunks array is too small.\n",
10726                                 progname);
10727                         rc = -EINVAL;
10728                         goto error;
10729                 }
10730
10731                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
10732         }
10733
10734 error:
10735         return rc < 0 ? rc : idx + 1;
10736 }
10737
10738 /**
10739  * lfs_mirror_verify_chunk() - Verify a chunk.
10740  * @fd:        File descriptor of the mirrored file.
10741  * @file_size: Size of the mirrored file.
10742  * @chunk:     A chunk and its corresponding valid mirror ids.
10743  * @verbose:   Verbose mode.
10744  *
10745  * This function verifies a @chunk contains exactly the same data
10746  * ammong the mirrors that cover it.
10747  *
10748  * If @verbose is specified, then the function will print where the
10749  * differences are if the data do not match. Otherwise, it will
10750  * just return an error in that case.
10751  *
10752  * Return: 0 on success or a negative error code on failure.
10753  */
10754 static inline
10755 int lfs_mirror_verify_chunk(int fd, size_t file_size,
10756                             struct verify_chunk *chunk, int verbose)
10757 {
10758         const size_t buflen = 4 * 1024 * 1024; /* 4M */
10759         void *buf;
10760         size_t page_size = sysconf(_SC_PAGESIZE);
10761         ssize_t bytes_read;
10762         ssize_t bytes_done;
10763         size_t count;
10764         off_t pos;
10765         unsigned long crc;
10766         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10767         int i;
10768         int rc = 0;
10769
10770         if (file_size == 0)
10771                 return 0;
10772
10773         rc = posix_memalign(&buf, page_size, buflen);
10774         if (rc) /* error code is returned directly */
10775                 return -rc;
10776
10777         if (verbose > 1) {
10778                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
10779                         PEXT(&chunk->chunk));
10780                 for (i = 0; i < chunk->mirror_count; i++)
10781                         fprintf(stdout, " %u", chunk->mirror_id[i]);
10782                 fprintf(stdout, "\n");
10783         }
10784
10785         bytes_done = 0;
10786         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
10787         pos = chunk->chunk.e_start;
10788         while (bytes_done < count) {
10789                 /* compute initial CRC-32 checksum */
10790                 crc = crc32(0L, Z_NULL, 0);
10791                 memset(crc_array, 0, sizeof(crc_array));
10792
10793                 bytes_read = 0;
10794                 for (i = 0; i < chunk->mirror_count; i++) {
10795                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
10796                                                        buf, buflen, pos);
10797                         if (bytes_read < 0) {
10798                                 rc = bytes_read;
10799                                 fprintf(stderr,
10800                                         "%s: failed to read data from mirror %u: %s.\n",
10801                                         progname, chunk->mirror_id[i],
10802                                         strerror(-rc));
10803                                 goto error;
10804                         }
10805
10806                         /* compute new CRC-32 checksum */
10807                         crc_array[i] = crc32(crc, buf, bytes_read);
10808                 }
10809
10810                 if (verbose)
10811                         print_checksums(chunk, crc_array);
10812
10813                 /* compare CRC-32 checksum values */
10814                 for (i = 1; i < chunk->mirror_count; i++) {
10815                         if (crc_array[i] != crc_array[0]) {
10816                                 rc = -EINVAL;
10817
10818                                 fprintf(stderr,
10819                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
10820                                         progname, PEXT(&chunk->chunk),
10821                                         chunk->mirror_id[0],
10822                                         chunk->mirror_id[i]);
10823                         }
10824                 }
10825
10826                 pos += bytes_read;
10827                 bytes_done += bytes_read;
10828         }
10829
10830         if (verbose > 1 && rc == 0) {
10831                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
10832                         PEXT(&chunk->chunk));
10833                 for (i = 0; i < chunk->mirror_count; i++)
10834                         fprintf(stdout, " %u", chunk->mirror_id[i]);
10835                 fprintf(stdout, " PASS\n\n");
10836         }
10837
10838 error:
10839         free(buf);
10840         return rc;
10841 }
10842
10843 /**
10844  * lfs_mirror_verify_file() - Verify a mirrored file.
10845  * @fname:      Mirrored file name.
10846  * @mirror_ids: Specified mirror ids to be verified.
10847  * @ids_nr:     Number of specified mirror ids.
10848  * @verbose:    Verbose mode.
10849  *
10850  * This function verifies that each SYNC mirror of a mirrored file
10851  * specified by @fname contains exactly the same data.
10852  *
10853  * If @mirror_ids is specified, then the function will verify the
10854  * mirrors specified by @mirror_ids contain exactly the same data.
10855  *
10856  * If @verbose is specified, then the function will print where the
10857  * differences are if the data do not match. Otherwise, it will
10858  * just return an error in that case.
10859  *
10860  * Return: 0 on success or a negative error code on failure.
10861  */
10862 static inline
10863 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
10864                            int verbose)
10865 {
10866         struct verify_chunk chunks_array[1024] = { };
10867         struct llapi_layout *layout = NULL;
10868         struct stat stbuf;
10869         uint32_t flr_state;
10870         int fd;
10871         int chunk_count = 0;
10872         int idx = 0;
10873         int rc = 0;
10874         int rc1 = 0;
10875         int rc2 = 0;
10876
10877         if (stat(fname, &stbuf) < 0) {
10878                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10879                         progname, fname, strerror(errno));
10880                 rc = -errno;
10881                 goto error;
10882         }
10883
10884         if (!S_ISREG(stbuf.st_mode)) {
10885                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10886                         progname, fname);
10887                 rc = -EINVAL;
10888                 goto error;
10889         }
10890
10891         if (stbuf.st_size == 0) {
10892                 if (verbose)
10893                         fprintf(stdout, "%s: '%s' file size is 0.\n",
10894                                 progname, fname);
10895                 rc = 0;
10896                 goto error;
10897         }
10898
10899         fd = open(fname, O_DIRECT | O_RDONLY);
10900         if (fd < 0) {
10901                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10902                         progname, fname, strerror(errno));
10903                 rc = -errno;
10904                 goto error;
10905         }
10906
10907         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10908         if (rc < 0) {
10909                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10910                         progname, fname, strerror(errno));
10911                 goto close_fd;
10912         }
10913
10914         layout = llapi_layout_get_by_fd(fd, 0);
10915         if (!layout) {
10916                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10917                         progname, fname, strerror(errno));
10918                 rc = -errno;
10919                 llapi_lease_release(fd);
10920                 goto close_fd;
10921         }
10922
10923         rc = llapi_layout_flags_get(layout, &flr_state);
10924         if (rc < 0) {
10925                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10926                         progname, fname, strerror(errno));
10927                 rc = -errno;
10928                 goto free_layout;
10929         }
10930
10931         flr_state &= LCM_FL_FLR_MASK;
10932         switch (flr_state) {
10933         case LCM_FL_NONE:
10934                 rc = -EINVAL;
10935                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10936                         progname, fname, llapi_layout_flags_string(flr_state));
10937                 goto free_layout;
10938         default:
10939                 break;
10940         }
10941
10942         /* find out mirror chunks to be verified */
10943         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
10944                                                ARRAY_SIZE(chunks_array));
10945         if (chunk_count < 0) {
10946                 rc = chunk_count;
10947                 goto free_layout;
10948         }
10949
10950         if (ids_nr > 0)
10951                 /* filter specified mirror ids */
10952                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
10953
10954         if (verbose > 2)
10955                 print_chunks(fname, chunks_array, chunk_count);
10956
10957         for (idx = 0; idx < chunk_count; idx++) {
10958                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
10959                         if (verbose)
10960                                 fprintf(stdout,
10961                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
10962                                         progname, fname,
10963                                         PEXT(&chunks_array[idx].chunk),
10964                                         (unsigned long long)stbuf.st_size);
10965                         break;
10966                 }
10967
10968                 if (chunks_array[idx].mirror_count == 0) {
10969                         fprintf(stderr,
10970                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
10971                                 progname, fname,
10972                                 PEXT(&chunks_array[idx].chunk));
10973                         if (verbose) {
10974                                 fprintf(stderr, "skipped\n");
10975                                 continue;
10976                         }
10977                         rc = -EINVAL;
10978                         fprintf(stderr, "failed\n");
10979                         goto free_layout;
10980                 }
10981
10982                 if (chunks_array[idx].mirror_count == 1) {
10983                         if (verbose)
10984                                 fprintf(stdout,
10985                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
10986                                         progname, fname,
10987                                         PEXT(&chunks_array[idx].chunk),
10988                                         chunks_array[idx].mirror_id[0]);
10989                         continue;
10990                 }
10991
10992                 rc = llapi_lease_check(fd);
10993                 if (rc != LL_LEASE_RDLCK) {
10994                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
10995                                 progname, fname);
10996                         goto free_layout;
10997                 }
10998
10999                 /* verify one chunk */
11000                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
11001                                               &chunks_array[idx], verbose);
11002                 if (rc1 < 0) {
11003                         rc2 = rc1;
11004                         if (!verbose) {
11005                                 rc = rc1;
11006                                 goto free_layout;
11007                         }
11008                 }
11009         }
11010
11011         if (rc2 < 0)
11012                 rc = rc2;
11013
11014 free_layout:
11015         llapi_layout_free(layout);
11016         llapi_lease_release(fd);
11017 close_fd:
11018         close(fd);
11019 error:
11020         return rc;
11021 }
11022
11023 /**
11024  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
11025  * @argc: The count of lfs mirror verify command line arguments.
11026  * @argv: Array of strings for lfs mirror verify command line arguments.
11027  *
11028  * This function parses lfs mirror verify command and verifies the
11029  * specified mirrored file(s).
11030  *
11031  * Return: 0 on success or a negative error code on failure.
11032  */
11033 static inline int lfs_mirror_verify(int argc, char **argv)
11034 {
11035         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11036         int ids_nr = 0;
11037         int c;
11038         int verbose = 0;
11039         int rc = 0;
11040         int rc1 = 0;
11041         char cmd[PATH_MAX];
11042
11043         struct option long_opts[] = {
11044         { .val = 'o',   .name = "only",         .has_arg = required_argument },
11045         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
11046         { .name = NULL } };
11047
11048         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11049         progname = cmd;
11050         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
11051                 switch (c) {
11052                 case 'o':
11053                         rc = parse_mirror_ids(mirror_ids,
11054                                               ARRAY_SIZE(mirror_ids),
11055                                               optarg);
11056                         if (rc < 0) {
11057                                 fprintf(stderr,
11058                                         "%s: bad mirror ids '%s'.\n",
11059                                         progname, optarg);
11060                                 goto error;
11061                         }
11062                         ids_nr = rc;
11063                         if (ids_nr < 2) {
11064                                 fprintf(stderr,
11065                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
11066                                         progname);
11067                                 rc = CMD_HELP;
11068                                 goto error;
11069                         }
11070                         break;
11071                 case 'v':
11072                         verbose++;
11073                         break;
11074                 default:
11075                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
11076                                 progname, argv[optind - 1]);
11077                         rc = -EINVAL;
11078                         goto error;
11079                 }
11080         }
11081
11082         if (argc == optind) {
11083                 fprintf(stderr, "%s: no file name given.\n", progname);
11084                 rc = CMD_HELP;
11085                 goto error;
11086         }
11087
11088         if (ids_nr > 0 && argc > optind + 1) {
11089                 fprintf(stderr,
11090                         "%s: '--only' cannot be used upon multiple files.\n",
11091                         progname);
11092                 rc = CMD_HELP;
11093                 goto error;
11094         }
11095
11096         if (ids_nr > 0) {
11097                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
11098                 if (rc < 0)
11099                         goto error;
11100         }
11101
11102         rc = 0;
11103         for (; optind < argc; optind++) {
11104                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
11105                                              verbose);
11106                 if (rc1 < 0)
11107                         rc = rc1;
11108         }
11109 error:
11110         return rc;
11111 }
11112
11113 /**
11114  * lfs_mirror() - Parse and execute lfs mirror commands.
11115  * @argc: The count of lfs mirror command line arguments.
11116  * @argv: Array of strings for lfs mirror command line arguments.
11117  *
11118  * This function parses lfs mirror commands and performs the
11119  * corresponding functions specified in mirror_cmdlist[].
11120  *
11121  * Return: 0 on success or an error code on failure.
11122  */
11123 static int lfs_mirror(int argc, char **argv)
11124 {
11125         char cmd[PATH_MAX];
11126         int rc = 0;
11127
11128         setlinebuf(stdout);
11129
11130         Parser_init("lfs-mirror > ", mirror_cmdlist);
11131
11132         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11133         progname = cmd;
11134         program_invocation_short_name = cmd;
11135         if (argc > 1)
11136                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
11137         else
11138                 rc = Parser_commands();
11139
11140         return rc < 0 ? -rc : rc;
11141 }
11142
11143 static void lustre_som_swab(struct lustre_som_attrs *attrs)
11144 {
11145 #if __BYTE_ORDER == __BIG_ENDIAN
11146         __swab16s(&attrs->lsa_valid);
11147         __swab64s(&attrs->lsa_size);
11148         __swab64s(&attrs->lsa_blocks);
11149 #endif
11150 }
11151
11152 enum lfs_som_type {
11153         LFS_SOM_SIZE = 0x1,
11154         LFS_SOM_BLOCKS = 0x2,
11155         LFS_SOM_FLAGS = 0x4,
11156         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
11157                            LFS_SOM_FLAGS,
11158 };
11159
11160 static int lfs_getsom(int argc, char **argv)
11161 {
11162         const char *path;
11163         struct lustre_som_attrs *attrs;
11164         char buf[sizeof(*attrs) + 64];
11165         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
11166         int rc = 0, c;
11167
11168         while ((c = getopt(argc, argv, "sbf")) != -1) {
11169                 switch (c) {
11170                 case 's':
11171                         type = LFS_SOM_SIZE;
11172                         break;
11173                 case 'b':
11174                         type = LFS_SOM_BLOCKS;
11175                         break;
11176                 case 'f':
11177                         type = LFS_SOM_FLAGS;
11178                         break;
11179                 default:
11180                         fprintf(stderr, "%s: invalid option '%c'\n",
11181                                 progname, optopt);
11182                         return CMD_HELP;
11183                 }
11184         }
11185
11186         argc -= optind;
11187         argv += optind;
11188
11189         if (argc != 1) {
11190                 fprintf(stderr, "%s: %s\n",
11191                         progname, argc == 0 ? "miss file target" :
11192                         "input more than 2 files");
11193                 return CMD_HELP;
11194         }
11195
11196         path = argv[0];
11197         attrs = (void *)buf;
11198         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
11199         if (rc < 0) {
11200                 rc = -errno;
11201                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
11202                         argv[0], strerror(errno), errno);
11203                 return rc;
11204         }
11205
11206         lustre_som_swab(attrs);
11207
11208         switch (type) {
11209         case LFS_SOM_ATTR_ALL:
11210                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
11211                        path, (unsigned long long)attrs->lsa_size,
11212                        (unsigned long long)attrs->lsa_blocks,
11213                        attrs->lsa_valid);
11214                 break;
11215         case LFS_SOM_SIZE:
11216                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
11217                 break;
11218         case LFS_SOM_BLOCKS:
11219                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
11220                 break;
11221         case LFS_SOM_FLAGS:
11222                 printf("%x\n", attrs->lsa_valid);
11223                 break;
11224         default:
11225                 fprintf(stderr, "%s: unknown option\n", progname);
11226                 return CMD_HELP;
11227         }
11228
11229         return 0;
11230 }
11231
11232 /**
11233  * lfs_mirror_list_commands() - List lfs mirror commands.
11234  * @argc: The count of command line arguments.
11235  * @argv: Array of strings for command line arguments.
11236  *
11237  * This function lists lfs mirror commands defined in mirror_cmdlist[].
11238  *
11239  * Return: 0 on success.
11240  */
11241 static int lfs_mirror_list_commands(int argc, char **argv)
11242 {
11243         char buffer[81] = "";
11244
11245         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
11246                              NULL, 0, 4);
11247
11248         return 0;
11249 }
11250
11251 static int lfs_pcc_attach(int argc, char **argv)
11252 {
11253         struct option long_opts[] = {
11254         { .val = 'i',   .name = "id",   .has_arg = required_argument },
11255         { .name = NULL } };
11256         int c;
11257         int rc = 0;
11258         __u32 archive_id = 0;
11259         const char *path;
11260         char *end;
11261         char fullpath[PATH_MAX];
11262         enum lu_pcc_type type = LU_PCC_READWRITE;
11263
11264         optind = 0;
11265         while ((c = getopt_long(argc, argv, "i:",
11266                                 long_opts, NULL)) != -1) {
11267                 switch (c) {
11268                 case 'i':
11269                         archive_id = strtoul(optarg, &end, 0);
11270                         if (*end != '\0' || archive_id == 0) {
11271                                 fprintf(stderr,
11272                                         "error: %s: bad archive ID '%s'\n",
11273                                         argv[0], optarg);
11274                                 return CMD_HELP;
11275                         }
11276                         break;
11277                 case '?':
11278                         return CMD_HELP;
11279                 default:
11280                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11281                                 argv[0], argv[optind - 1]);
11282                         return CMD_HELP;
11283                 }
11284         }
11285
11286         if (archive_id == 0) {
11287                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
11288                 return CMD_HELP;
11289         }
11290
11291         if (argc <= optind) {
11292                 fprintf(stderr, "%s: must specify one or more file names\n",
11293                         argv[0]);
11294                 return CMD_HELP;
11295         }
11296
11297         while (optind < argc) {
11298                 int rc2;
11299
11300                 path = argv[optind++];
11301                 if (!realpath(path, fullpath)) {
11302                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11303                                 argv[0], path, strerror(errno));
11304                         if (rc == 0)
11305                                 rc = -EINVAL;
11306                         continue;
11307                 }
11308
11309                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
11310                 if (rc2 < 0) {
11311                         fprintf(stderr,
11312                                 "%s: cannot attach '%s' to PCC with archive ID '%u': %s\n",
11313                                 argv[0], path, archive_id, strerror(-rc2));
11314                         if (rc == 0)
11315                                 rc = rc2;
11316                 }
11317         }
11318         return rc;
11319 }
11320
11321 static int lfs_pcc_attach_fid(int argc, char **argv)
11322 {
11323         struct option long_opts[] = {
11324         { .val = 'i',   .name = "id",   .has_arg = required_argument },
11325         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
11326         { .name = NULL } };
11327         char                     short_opts[] = "i:m:";
11328         int                      c;
11329         int                      rc = 0;
11330         __u32                    archive_id = 0;
11331         char                    *end;
11332         const char              *mntpath = NULL;
11333         const char              *fidstr;
11334         enum lu_pcc_type         type = LU_PCC_READWRITE;
11335
11336         optind = 0;
11337         while ((c = getopt_long(argc, argv, short_opts,
11338                                 long_opts, NULL)) != -1) {
11339                 switch (c) {
11340                 case 'i':
11341                         archive_id = strtoul(optarg, &end, 0);
11342                         if (*end != '\0') {
11343                                 fprintf(stderr,
11344                                         "error: %s: bad archive ID '%s'\n",
11345                                         argv[0], optarg);
11346                                 return CMD_HELP;
11347                         }
11348                         break;
11349                 case 'm':
11350                         mntpath = optarg;
11351                         break;
11352                 case '?':
11353                         return CMD_HELP;
11354                 default:
11355                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11356                                 argv[0], argv[optind - 1]);
11357                         return CMD_HELP;
11358                 }
11359         }
11360
11361         if (archive_id == 0) {
11362                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
11363                 return CMD_HELP;
11364         }
11365
11366         if (!mntpath) {
11367                 fprintf(stderr, "%s: must specify Lustre mount point\n",
11368                         argv[0]);
11369                 return CMD_HELP;
11370         }
11371
11372         if (argc <= optind) {
11373                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
11374                 return CMD_HELP;
11375         }
11376
11377         while (optind < argc) {
11378                 int rc2;
11379
11380                 fidstr = argv[optind++];
11381
11382                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
11383                                                archive_id, type);
11384                 if (rc2 < 0) {
11385                         fprintf(stderr,
11386                                 "%s: cannot attach '%s' on '%s' to PCC with archive ID '%u': %s\n",
11387                                 argv[0], fidstr, mntpath, archive_id,
11388                                 strerror(rc2));
11389                 }
11390                 if (rc == 0 && rc2 < 0)
11391                         rc = rc2;
11392         }
11393         return rc;
11394 }
11395
11396 static int lfs_pcc_detach(int argc, char **argv)
11397 {
11398         struct option long_opts[] = {
11399         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11400         { .name = NULL } };
11401         char                     short_opts[] = "k";
11402         int                      c;
11403         int                      rc = 0;
11404         const char              *path;
11405         char                     fullpath[PATH_MAX];
11406         __u32                    detach_opt = PCC_DETACH_OPT_UNCACHE;
11407
11408         optind = 0;
11409         while ((c = getopt_long(argc, argv, short_opts,
11410                                 long_opts, NULL)) != -1) {
11411                 switch (c) {
11412                 case 'k':
11413                         detach_opt = PCC_DETACH_OPT_NONE;
11414                         break;
11415                 case '?':
11416                         return CMD_HELP;
11417                 default:
11418                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11419                                 argv[0], argv[optind - 1]);
11420                         return CMD_HELP;
11421                 }
11422         }
11423
11424         while (optind < argc) {
11425                 int rc2;
11426
11427                 path = argv[optind++];
11428                 if (!realpath(path, fullpath)) {
11429                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11430                                 argv[0], path, strerror(errno));
11431                         if (rc == 0)
11432                                 rc = -EINVAL;
11433                         continue;
11434                 }
11435
11436                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
11437                 if (rc2 < 0) {
11438                         rc2 = -errno;
11439                         fprintf(stderr,
11440                                 "%s: cannot detach '%s' from PCC: %s\n",
11441                                 argv[0], path, strerror(errno));
11442                         if (rc == 0)
11443                                 rc = rc2;
11444                 }
11445         }
11446         return rc;
11447 }
11448
11449 static int lfs_pcc_detach_fid(int argc, char **argv)
11450 {
11451         struct option long_opts[] = {
11452         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11453         { .name = NULL } };
11454         char             short_opts[] = "k";
11455         int              c;
11456         int              rc = 0;
11457         const char      *fid;
11458         const char      *mntpath;
11459         __u32            detach_opt = PCC_DETACH_OPT_UNCACHE;
11460
11461         optind = 0;
11462         while ((c = getopt_long(argc, argv, short_opts,
11463                                 long_opts, NULL)) != -1) {
11464                 switch (c) {
11465                 case 'k':
11466                         detach_opt = PCC_DETACH_OPT_NONE;
11467                         break;
11468                 case '?':
11469                         return CMD_HELP;
11470                 default:
11471                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11472                                 argv[0], argv[optind - 1]);
11473                         return CMD_HELP;
11474                 }
11475         }
11476
11477         mntpath = argv[optind++];
11478
11479         while (optind < argc) {
11480                 int rc2;
11481
11482                 fid = argv[optind++];
11483
11484                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
11485                 if (rc2 < 0) {
11486                         fprintf(stderr,
11487                                 "%s: cannot detach '%s' on '%s' from PCC: %s\n",
11488                                 argv[0], fid, mntpath, strerror(-rc2));
11489                         if (rc == 0)
11490                                 rc = rc2;
11491                 }
11492         }
11493         return rc;
11494 }
11495
11496 static int lfs_pcc_state(int argc, char **argv)
11497 {
11498         int                      rc = 0;
11499         const char              *path;
11500         char                     fullpath[PATH_MAX];
11501         struct lu_pcc_state      state;
11502
11503         optind = 1;
11504
11505         if (argc <= 1) {
11506                 fprintf(stderr, "%s: must specify one or more file names\n",
11507                         argv[0]);
11508                 return CMD_HELP;
11509         }
11510
11511         while (optind < argc) {
11512                 int rc2;
11513
11514                 path = argv[optind++];
11515                 if (!realpath(path, fullpath)) {
11516                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11517                                 argv[0], path, strerror(errno));
11518                         if (rc == 0)
11519                                 rc = -EINVAL;
11520                         continue;
11521                 }
11522
11523                 rc2 = llapi_pcc_state_get(fullpath, &state);
11524                 if (rc2 < 0) {
11525                         if (rc == 0)
11526                                 rc = rc2;
11527                         fprintf(stderr,
11528                                 "%s: cannot get PCC state of '%s': %s\n",
11529                                 argv[0], path, strerror(-rc2));
11530                         continue;
11531                 }
11532
11533                 printf("file: %s", path);
11534                 printf(", type: %s", pcc_type2string(state.pccs_type));
11535                 if (state.pccs_type == LU_PCC_NONE &&
11536                     state.pccs_open_count == 0) {
11537                         printf("\n");
11538                         continue;
11539                 }
11540
11541                 printf(", PCC file: %s", state.pccs_path);
11542                 printf(", user number: %u", state.pccs_open_count);
11543                 printf(", flags: %x", state.pccs_flags);
11544                 printf("\n");
11545         }
11546         return rc;
11547 }
11548
11549 /**
11550  * lfs_pcc_list_commands() - List lfs pcc commands.
11551  * @argc: The count of command line arguments.
11552  * @argv: Array of strings for command line arguments.
11553  *
11554  * This function lists lfs pcc commands defined in pcc_cmdlist[].
11555  *
11556  * Return: 0 on success.
11557  */
11558 static int lfs_pcc_list_commands(int argc, char **argv)
11559 {
11560         char buffer[81] = "";
11561
11562         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
11563                              NULL, 0, 4);
11564
11565         return 0;
11566 }
11567
11568 /**
11569  * lfs_pcc() - Parse and execute lfs pcc commands.
11570  * @argc: The count of lfs pcc command line arguments.
11571  * @argv: Array of strings for lfs pcc command line arguments.
11572  *
11573  * This function parses lfs pcc commands and performs the
11574  * corresponding functions specified in pcc_cmdlist[].
11575  *
11576  * Return: 0 on success or an error code on failure.
11577  */
11578 static int lfs_pcc(int argc, char **argv)
11579 {
11580         char cmd[PATH_MAX];
11581         int rc = 0;
11582
11583         setlinebuf(stdout);
11584
11585         Parser_init("lfs-pcc > ", pcc_cmdlist);
11586
11587         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11588         progname = cmd;
11589         program_invocation_short_name = cmd;
11590         if (argc > 1)
11591                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
11592         else
11593                 rc = Parser_commands();
11594
11595         return rc < 0 ? -rc : rc;
11596 }
11597
11598 static int lfs_list_commands(int argc, char **argv)
11599 {
11600         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
11601
11602         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
11603
11604         return 0;
11605 }
11606
11607 int main(int argc, char **argv)
11608 {
11609         int rc;
11610
11611         /* Ensure that liblustreapi constructor has run */
11612         if (!llapi_liblustreapi_initialized())
11613                 fprintf(stderr, "liblustreapi was not properly initialized\n");
11614
11615         setlinebuf(stdout);
11616         opterr = 0;
11617
11618         Parser_init("lfs > ", cmdlist);
11619
11620         progname = program_invocation_short_name; /* Used in error messages */
11621         if (argc > 1) {
11622                 llapi_set_command_name(argv[1]);
11623                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
11624                 llapi_clear_command_name();
11625         } else {
11626                 rc = Parser_commands();
11627         }
11628
11629         return rc < 0 ? -rc : rc;
11630 }
11631
11632 #ifdef _LUSTRE_IDL_H_
11633 /* Everything we need here should be included by lustreapi.h. */
11634 # error "lfs should not depend on lustre_idl.h"
11635 #endif /* _LUSTRE_IDL_H_ */