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, uint32_t flags)
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         llapi_layout_comp_flags_set(m_layout, flags);
1798         rc = migrate_open_files(name, 0, NULL, m_layout, &fd, &fdv);
1799         if (rc < 0)
1800                 goto out;
1801
1802         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1803         if (rc < 0) {
1804                 error_loc = "cannot get lease";
1805                 goto out;
1806         }
1807
1808         rc = migrate_nonblock(fd, fdv);
1809         if (rc < 0) {
1810                 llapi_lease_release(fd);
1811                 goto out;
1812         }
1813
1814         /* Atomically put lease, merge layouts and close. */
1815         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1816         if (!data) {
1817                 error_loc = "memory allocation";
1818                 goto out;
1819         }
1820         data->lil_mode = LL_LEASE_UNLCK;
1821         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1822         data->lil_count = 1;
1823         data->lil_ids[0] = fdv;
1824         rc = llapi_lease_set(fd, data);
1825         if (rc < 0) {
1826                 error_loc = "cannot merge layout";
1827                 goto out;
1828         } else if (rc == 0) {
1829                 rc = -EBUSY;
1830                 error_loc = "lost lease lock";
1831                 goto out;
1832         }
1833         rc = 0;
1834
1835 out:
1836         if (data)
1837                 free(data);
1838         if (fd >= 0)
1839                 close(fd);
1840         if (fdv >= 0)
1841                 close(fdv);
1842         if (rc < 0)
1843                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1844                         progname, name, error_loc, strerror(-rc));
1845         return rc;
1846 }
1847
1848 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1849                          enum mirror_flags mirror_flags)
1850 {
1851         int rc;
1852
1853         rc = mirror_create_sanity_check(fname, mirror_list);
1854         if (rc)
1855                 return rc;
1856
1857         while (mirror_list) {
1858                 if (mirror_list->m_file) {
1859                         rc = mirror_extend_file(fname, mirror_list->m_file,
1860                                                 mirror_flags);
1861                 } else {
1862                         __u32 mirror_count = mirror_list->m_count;
1863
1864                         while (mirror_count > 0) {
1865                                 rc = mirror_extend_layout(fname,
1866                                                         mirror_list->m_layout,
1867                                                         mirror_list->m_inherit,
1868                                                         mirror_list->m_flags);
1869                                 if (rc)
1870                                         break;
1871
1872                                 --mirror_count;
1873                         }
1874                 }
1875                 if (rc)
1876                         break;
1877
1878                 mirror_list = mirror_list->m_next;
1879         }
1880
1881         return rc;
1882 }
1883
1884 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1885 {
1886         uint32_t id;
1887         int rc;
1888
1889         rc = llapi_layout_mirror_id_get(layout, &id);
1890         if (rc < 0)
1891                 return rc;
1892
1893         if ((__u16)id == *(__u16 *)cbdata)
1894                 return LLAPI_LAYOUT_ITER_STOP;
1895
1896         return LLAPI_LAYOUT_ITER_CONT;
1897 }
1898
1899 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1900 {
1901         uint32_t id;
1902         int rc;
1903
1904         rc = llapi_layout_comp_id_get(layout, &id);
1905         if (rc < 0)
1906                 return rc;
1907
1908         if (id == *(__u32 *)cbdata)
1909                 return LLAPI_LAYOUT_ITER_STOP;
1910
1911         return LLAPI_LAYOUT_ITER_CONT;
1912 }
1913
1914 struct pool_to_id_cbdata {
1915         const char *pool;
1916         __u32 id;
1917 };
1918
1919 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata)
1920 {
1921         char buf[LOV_MAXPOOLNAME + 1];
1922         struct pool_to_id_cbdata *d = (void *)cbdata;
1923         uint32_t id;
1924         int rc;
1925
1926         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
1927         if (rc < 0)
1928                 return rc;
1929         if (strcmp(d->pool, buf))
1930                 return LLAPI_LAYOUT_ITER_CONT;
1931
1932         rc = llapi_layout_mirror_id_get(layout, &id);
1933         if (rc < 0)
1934                 return rc;
1935         d->id = id;
1936
1937         return LLAPI_LAYOUT_ITER_STOP;
1938 }
1939
1940 struct collect_ids_data {
1941         __u16   *cid_ids;
1942         int     cid_count;
1943         __u16   cid_exclude;
1944 };
1945
1946 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
1947 {
1948         struct collect_ids_data *cid = cbdata;
1949         uint32_t id;
1950         int rc;
1951
1952         rc = llapi_layout_mirror_id_get(layout, &id);
1953         if (rc < 0)
1954                 return rc;
1955
1956         if ((__u16)id != cid->cid_exclude) {
1957                 int i;
1958
1959                 for (i = 0; i < cid->cid_count; i++) {
1960                         /* already collected the mirror id */
1961                         if (id == cid->cid_ids[i])
1962                                 return LLAPI_LAYOUT_ITER_CONT;
1963                 }
1964                 cid->cid_ids[cid->cid_count] = id;
1965                 cid->cid_count++;
1966         }
1967
1968         return LLAPI_LAYOUT_ITER_CONT;
1969 }
1970
1971 /**
1972  * last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
1973  * @mirror_id: Mirror id to be checked.
1974  * @layout:    Mirror component list.
1975  *
1976  * This function checks if a mirror with specified @mirror_id is the last
1977  * non-stale mirror of a layout @layout.
1978  *
1979  * Return: true or false.
1980  */
1981 static inline
1982 bool last_non_stale_mirror(__u16 mirror_id, struct llapi_layout *layout)
1983 {
1984         __u16 mirror_ids[128] = { 0 };
1985         struct collect_ids_data cid = { .cid_ids = mirror_ids,
1986                                         .cid_count = 0,
1987                                         .cid_exclude = mirror_id, };
1988         int i;
1989
1990         llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
1991
1992         for (i = 0; i < cid.cid_count; i++) {
1993                 struct llapi_resync_comp comp_array[1024] = { { 0 } };
1994                 int comp_size = 0;
1995
1996                 comp_size = llapi_mirror_find_stale(layout, comp_array,
1997                                                     ARRAY_SIZE(comp_array),
1998                                                     &mirror_ids[i], 1);
1999                 if (comp_size == 0)
2000                         return false;
2001         }
2002
2003         return true;
2004 }
2005
2006 static int mirror_split(const char *fname, __u32 id, const char *pool,
2007                         enum mirror_flags mflags, const char *victim_file)
2008 {
2009         struct llapi_layout *layout;
2010         char parent[PATH_MAX];
2011         char victim[PATH_MAX];
2012         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
2013         char *ptr;
2014         struct ll_ioc_lease *data;
2015         uint16_t mirror_count;
2016         __u32 mirror_id;
2017         int mdt_index;
2018         int fd, fdv;
2019         int rc;
2020
2021         /* check fname contains mirror with mirror_id/comp_id */
2022         layout = llapi_layout_get_by_path(fname, 0);
2023         if (!layout) {
2024                 fprintf(stderr,
2025                         "error %s: file '%s' couldn't get layout\n",
2026                         progname, fname);
2027                 return -EINVAL;
2028         }
2029
2030         rc = llapi_layout_sanity(layout, false, true);
2031         if (rc) {
2032                 llapi_layout_sanity_perror(rc);
2033                 goto free_layout;
2034         }
2035
2036         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
2037         if (rc) {
2038                 fprintf(stderr,
2039                         "error %s: file '%s' couldn't get mirror count\n",
2040                         progname, fname);
2041                 goto free_layout;
2042         }
2043         if (mirror_count < 2) {
2044                 fprintf(stderr,
2045                         "error %s: file '%s' has %d component, cannot split\n",
2046                         progname, fname, mirror_count);
2047                 goto free_layout;
2048         }
2049
2050         if (mflags & MF_COMP_POOL) {
2051                 struct pool_to_id_cbdata data = { .pool = pool };
2052
2053                 rc = llapi_layout_comp_iterate(layout, find_comp_id_by_pool,
2054                                                &data);
2055                 mirror_id = data.id;
2056         } else if (mflags & MF_COMP_ID) {
2057                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
2058                 mirror_id = mirror_id_of(id);
2059         } else {
2060                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
2061                 mirror_id = id;
2062         }
2063         if (rc < 0) {
2064                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
2065                         progname, fname);
2066                 goto free_layout;
2067         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
2068                 if (mflags & MF_COMP_POOL) {
2069                         fprintf(stderr,
2070                                 "error %s: file '%s' does not contain mirror with pool '%s'\n",
2071                                 progname, fname, pool);
2072                         goto free_layout;
2073                 } else if (mflags & MF_COMP_ID) {
2074                         fprintf(stderr,
2075                                 "error %s: file '%s' does not contain mirror with comp-id %u\n",
2076                                 progname, fname, id);
2077                         goto free_layout;
2078                 } else {
2079                         fprintf(stderr,
2080                                 "error %s: file '%s' does not contain mirror with id %u\n",
2081                                 progname, fname, id);
2082                         goto free_layout;
2083                 }
2084         }
2085
2086         fd = open(fname, O_RDWR);
2087         if (fd < 0) {
2088                 fprintf(stderr,
2089                         "error %s: open file '%s' failed: %s\n",
2090                         progname, fname, strerror(errno));
2091                 goto free_layout;
2092         }
2093
2094         /* get victim file directory pathname */
2095         if (strlen(fname) > sizeof(parent) - 1) {
2096                 fprintf(stderr, "error %s: file name of '%s' too long\n",
2097                         progname, fname);
2098                 rc = -ERANGE;
2099                 goto close_fd;
2100         }
2101         strncpy(parent, fname, sizeof(parent));
2102         ptr = strrchr(parent, '/');
2103         if (!ptr) {
2104                 if (!getcwd(parent, sizeof(parent))) {
2105                         fprintf(stderr, "error %s: getcwd failed: %s\n",
2106                                 progname, strerror(errno));
2107                         rc = -errno;
2108                         goto close_fd;
2109                 }
2110         } else {
2111                 if (ptr == parent)
2112                         ptr = parent + 1;
2113                 *ptr = '\0';
2114         }
2115
2116         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
2117         if (rc < 0) {
2118                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
2119                         progname, fname);
2120                 goto close_fd;
2121         }
2122
2123         if (!victim_file) {
2124                 /* use a temp file to store the splitted layout */
2125                 if (mflags & MF_DESTROY) {
2126                         if (last_non_stale_mirror(mirror_id, layout)) {
2127                                 rc = -EUCLEAN;
2128                                 fprintf(stderr,
2129                                         "%s: cannot destroy the last non-stale mirror of file '%s'\n",
2130                                         progname, fname);
2131                                 goto close_fd;
2132                         }
2133
2134                         fdv = llapi_create_volatile_idx(parent, mdt_index,
2135                                                         O_LOV_DELAY_CREATE);
2136                 } else {
2137                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
2138                                  fname, mirror_id);
2139                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
2140                 }
2141         } else {
2142                 /* user specified victim file */
2143                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
2144         }
2145
2146         if (fdv < 0) {
2147                 fprintf(stderr,
2148                         "error %s: create victim file failed: %s\n",
2149                         progname, strerror(errno));
2150                 goto close_fd;
2151         }
2152
2153         /* get lease lock of fname */
2154         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
2155         if (rc < 0) {
2156                 fprintf(stderr,
2157                         "error %s: cannot get lease of file '%s': %d\n",
2158                         progname, fname, rc);
2159                 goto close_victim;
2160         }
2161
2162         /* Atomatically put lease, split layouts and close. */
2163         data = malloc(offsetof(typeof(*data), lil_ids[2]));
2164         if (!data) {
2165                 rc = -ENOMEM;
2166                 goto close_victim;
2167         }
2168
2169         data->lil_mode = LL_LEASE_UNLCK;
2170         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
2171         data->lil_count = 2;
2172         data->lil_ids[0] = fdv;
2173         data->lil_ids[1] = mirror_id;
2174         rc = llapi_lease_set(fd, data);
2175         if (rc <= 0) {
2176                 if (rc == 0) /* lost lease lock */
2177                         rc = -EBUSY;
2178                 fprintf(stderr,
2179                         "error %s: cannot split '%s': %s\n",
2180                         progname, fname, strerror(-rc));
2181         } else {
2182                 rc = 0;
2183         }
2184         free(data);
2185
2186 close_victim:
2187         close(fdv);
2188 close_fd:
2189         close(fd);
2190 free_layout:
2191         llapi_layout_free(layout);
2192         return rc;
2193 }
2194
2195 static inline
2196 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
2197                            __u16 *mirror_ids, int ids_nr);
2198
2199 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
2200                               __u64 migration_flags,
2201                               struct llapi_stripe_param *param,
2202                               struct llapi_layout *layout)
2203 {
2204         struct ll_ioc_lease *data = NULL;
2205         int rc;
2206
2207         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
2208         if (rc < 0) {
2209                 error_loc = "cannot get lease";
2210                 goto out_close;
2211         }
2212
2213         /* Atomically put lease, merge layouts, resync and close. */
2214         data = calloc(1, offsetof(typeof(*data), lil_ids[1024]));
2215         if (!data) {
2216                 error_loc = "memory allocation";
2217                 goto out_close;
2218         }
2219         data->lil_mode = LL_LEASE_UNLCK;
2220         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2221         data->lil_count = 1;
2222         data->lil_ids[0] = fdv;
2223         rc = llapi_lease_set(fd, data);
2224         if (rc < 0) {
2225                 error_loc = "cannot merge layout";
2226                 goto out_close;
2227         } else if (rc == 0) {
2228                 rc = -EBUSY;
2229                 error_loc = "lost lease lock";
2230                 goto out_close;
2231         }
2232         close(fd);
2233         close(fdv);
2234
2235         rc = lfs_mirror_resync_file(name, data, NULL, 0);
2236         if (rc) {
2237                 error_loc = "cannot resync file";
2238                 goto out;
2239         }
2240
2241         /* delete first mirror now */
2242         rc = mirror_split(name, 1, NULL, MF_DESTROY, NULL);
2243         if (rc < 0)
2244                 error_loc = "cannot delete old layout";
2245         goto out;
2246
2247 out_close:
2248         close(fd);
2249         close(fdv);
2250 out:
2251         if (rc < 0)
2252                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2253                         progname, name, error_loc, strerror(-rc));
2254         else if (migration_flags & MIGRATION_VERBOSE)
2255                 printf("%s\n", name);
2256         if (data)
2257                 free(data);
2258         return rc;
2259 }
2260
2261 /**
2262  * Parse a string containing an target index list into an array of integers.
2263  *
2264  * The input string contains a comma delimited list of individual
2265  * indices and ranges, for example "1,2-4,7". Add the indices into the
2266  * \a tgts array and remove duplicates.
2267  *
2268  * \param[out] tgts             array to store indices in
2269  * \param[in] size              size of \a tgts array
2270  * \param[in] offset            starting index in \a tgts
2271  * \param[in] arg               string containing OST index list
2272  * \param[in/out] overstriping  index list may contain duplicates
2273  *
2274  * \retval positive    number of indices in \a tgts
2275  * \retval -EINVAL     unable to parse \a arg
2276  */
2277 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2278                          unsigned long long *pattern)
2279 {
2280         int rc;
2281         int nr = offset;
2282         int slots = size - offset;
2283         char *ptr = NULL;
2284         bool overstriped = false;
2285         bool end_of_loop;
2286
2287         if (!arg)
2288                 return -EINVAL;
2289
2290         end_of_loop = false;
2291         while (!end_of_loop) {
2292                 int start_index = 0;
2293                 int end_index = 0;
2294                 int i;
2295                 char *endptr = NULL;
2296
2297                 rc = -EINVAL;
2298
2299                 ptr = strchrnul(arg, ',');
2300
2301                 end_of_loop = *ptr == '\0';
2302                 *ptr = '\0';
2303
2304                 start_index = strtol(arg, &endptr, 0);
2305                 if (endptr == arg) /* no data at all */
2306                         break;
2307                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
2308                         break;
2309
2310                 end_index = start_index;
2311                 if (*endptr == '-') {
2312                         end_index = strtol(endptr + 1, &endptr, 0);
2313                         if (*endptr != '\0')
2314                                 break;
2315                         if (end_index < start_index)
2316                                 break;
2317                 }
2318
2319                 for (i = start_index; i <= end_index && slots > 0; i++) {
2320                         int j;
2321
2322                         /* remove duplicate */
2323                         for (j = 0; j < offset; j++) {
2324                                 if (tgts[j] == i && pattern &&
2325                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2326                                         overstriped = true;
2327                                 else if (tgts[j] == i)
2328                                         return -EINVAL;
2329                         }
2330
2331                         j = offset;
2332
2333                         if (j == offset) { /* check complete */
2334                                 tgts[nr++] = i;
2335                                 --slots;
2336                         }
2337                 }
2338
2339                 if (slots == 0 && i < end_index)
2340                         break;
2341
2342                 *ptr = ',';
2343                 arg = ++ptr;
2344                 offset = nr;
2345                 rc = 0;
2346         }
2347         if (!end_of_loop && ptr)
2348                 *ptr = ',';
2349
2350         if (!overstriped && pattern)
2351                 *pattern = LLAPI_LAYOUT_DEFAULT;
2352
2353         return rc < 0 ? rc : nr;
2354 }
2355
2356 struct lfs_setstripe_args {
2357         unsigned long long       lsa_comp_end;
2358         unsigned long long       lsa_stripe_size;
2359         unsigned long long       lsa_extension_size;
2360         long long                lsa_stripe_count;
2361         long long                lsa_stripe_off;
2362         __u32                    lsa_comp_flags;
2363         __u32                    lsa_comp_neg_flags;
2364         unsigned long long       lsa_pattern;
2365         unsigned int             lsa_mirror_count;
2366         int                      lsa_nr_tgts;
2367         bool                     lsa_first_comp;
2368         bool                     lsa_extension_comp;
2369         __u32                   *lsa_tgts;
2370         char                    *lsa_pool_name;
2371 };
2372
2373 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2374 {
2375         unsigned int mirror_count = lsa->lsa_mirror_count;
2376         bool first_comp = lsa->lsa_first_comp;
2377
2378         memset(lsa, 0, sizeof(*lsa));
2379
2380         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2381         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2382         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2383         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2384         lsa->lsa_pool_name = NULL;
2385
2386         lsa->lsa_mirror_count = mirror_count;
2387         lsa->lsa_first_comp = first_comp;
2388 }
2389
2390 /**
2391  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2392  * @lsa: Stripe options to be initialized and inherited.
2393  *
2394  * This function initializes stripe options in @lsa and inherit
2395  * stripe_size, stripe_count and OST pool_name options.
2396  *
2397  * Return: void.
2398  */
2399 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2400 {
2401         unsigned long long stripe_size;
2402         long long stripe_count;
2403         char *pool_name = NULL;
2404
2405         stripe_size = lsa->lsa_stripe_size;
2406         stripe_count = lsa->lsa_stripe_count;
2407         pool_name = lsa->lsa_pool_name;
2408
2409         setstripe_args_init(lsa);
2410
2411         lsa->lsa_stripe_size = stripe_size;
2412         lsa->lsa_stripe_count = stripe_count;
2413         lsa->lsa_pool_name = pool_name;
2414 }
2415
2416 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2417 {
2418         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2419                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2420                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2421                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2422                 lsa->lsa_comp_end != 0);
2423 }
2424
2425 /**
2426  * comp_args_to_layout() - Create or extend a composite layout.
2427  * @composite:       Pointer to the composite layout.
2428  * @lsa:             Stripe options for the new component.
2429  *
2430  * This function creates or extends a composite layout by adding a new
2431  * component with stripe options from @lsa.
2432  *
2433  * Return: 0 on success or an error code on failure.
2434  */
2435 static int comp_args_to_layout(struct llapi_layout **composite,
2436                                struct lfs_setstripe_args *lsa,
2437                                bool set_extent)
2438 {
2439         struct llapi_layout *layout = *composite;
2440         uint64_t prev_end = 0;
2441         uint64_t size;
2442         int i = 0, rc;
2443
2444 new_comp:
2445         if (!layout) {
2446                 layout = llapi_layout_alloc();
2447                 if (!layout) {
2448                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2449                                 strerror(errno));
2450                         errno = ENOMEM;
2451                         return -1;
2452                 }
2453                 *composite = layout;
2454                 lsa->lsa_first_comp = true;
2455         } else {
2456                 uint64_t start;
2457
2458                 /*
2459                  * Get current component extent, current component
2460                  * must be the tail component.
2461                  */
2462                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2463                 if (rc) {
2464                         fprintf(stderr, "Get comp extent failed. %s\n",
2465                                 strerror(errno));
2466                         return rc;
2467                 }
2468
2469                 if (lsa->lsa_first_comp) {
2470                         prev_end = 0;
2471                         rc = llapi_layout_add_first_comp(layout);
2472                 } else {
2473                         rc = llapi_layout_comp_add(layout);
2474                 }
2475                 if (rc) {
2476                         fprintf(stderr, "Add component failed. %s\n",
2477                                 strerror(errno));
2478                         return rc;
2479                 }
2480         }
2481
2482         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2483         if (rc) {
2484                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2485                         lsa->lsa_comp_flags, strerror(errno));
2486                 return rc;
2487         }
2488
2489         if (set_extent) {
2490                 uint64_t comp_end = lsa->lsa_comp_end;
2491
2492                 /*
2493                  * The extendable component is 0-length, so it can be removed
2494                  * if there is insufficient space to extend it.
2495                  */
2496                 if (lsa->lsa_extension_comp)
2497                         comp_end = prev_end;
2498
2499                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2500                                                   comp_end);
2501                 if (rc) {
2502                         fprintf(stderr, "Set extent [%lu, %lu) failed. %s\n",
2503                                 prev_end, comp_end, strerror(errno));
2504                         return rc;
2505                 }
2506         }
2507         /* reset lsa_first_comp */
2508         lsa->lsa_first_comp = false;
2509
2510         /* Data-on-MDT component setting */
2511         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2512                 /*
2513                  * In case of Data-on-MDT patterns the only extra option
2514                  * applicable is stripe size option.
2515                  */
2516                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2517                         fprintf(stderr,
2518                                 "Option 'stripe-count' can't be specified with Data-on-MDT component: %lld\n",
2519                                 lsa->lsa_stripe_count);
2520                         errno = EINVAL;
2521                         return -1;
2522                 }
2523                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2524                         fprintf(stderr,
2525                                 "Option 'stripe-size' can't be specified with Data-on-MDT component: %llu\n",
2526                                 lsa->lsa_stripe_size);
2527                         errno = EINVAL;
2528                         return -1;
2529                 }
2530                 if (lsa->lsa_nr_tgts != 0) {
2531                         fprintf(stderr,
2532                                 "Option 'ost-list' can't be specified with Data-on-MDT component: '%i'\n",
2533                                 lsa->lsa_nr_tgts);
2534                         errno = EINVAL;
2535                         return -1;
2536                 }
2537                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2538                         fprintf(stderr,
2539                                 "Option 'stripe-offset' can't be specified with Data-on-MDT component: %lld\n",
2540                                 lsa->lsa_stripe_off);
2541                         errno = EINVAL;
2542                         return -1;
2543                 }
2544                 if (lsa->lsa_pool_name != 0) {
2545                         fprintf(stderr,
2546                                 "Option 'pool' can't be specified with Data-on-MDT component: '%s'\n",
2547                                 lsa->lsa_pool_name);
2548                         errno = EINVAL;
2549                         return -1;
2550                 }
2551
2552                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2553                 if (rc) {
2554                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2555                                 lsa->lsa_pattern,
2556                                 strerror(errno));
2557                         return rc;
2558                 }
2559                 /* Data-on-MDT component has always single stripe up to end */
2560                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2561         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2562                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2563                 if (rc) {
2564                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2565                                 lsa->lsa_pattern,
2566                                 strerror(errno));
2567                         return rc;
2568                 }
2569         }
2570
2571         size = lsa->lsa_comp_flags & LCME_FL_EXTENSION ?
2572                 lsa->lsa_extension_size : lsa->lsa_stripe_size;
2573
2574         if (lsa->lsa_comp_flags & LCME_FL_EXTENSION)
2575                 rc = llapi_layout_extension_size_set(layout, size);
2576         else
2577                 rc = llapi_layout_stripe_size_set(layout, size);
2578
2579         if (rc) {
2580                 fprintf(stderr, "Set stripe size %lu failed: %s\n",
2581                         size, strerror(errno));
2582                 return rc;
2583         }
2584
2585         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2586         if (rc) {
2587                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2588                         lsa->lsa_stripe_count, strerror(errno));
2589                 return rc;
2590         }
2591
2592         if (lsa->lsa_pool_name) {
2593                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2594                 if (rc) {
2595                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2596                                 lsa->lsa_pool_name, strerror(errno));
2597                         return rc;
2598                 }
2599         } else {
2600                 rc = llapi_layout_pool_name_set(layout, "");
2601                 if (rc) {
2602                         fprintf(stderr, "Clear pool name failed: %s\n",
2603                                 strerror(errno));
2604                         return rc;
2605                 }
2606         }
2607
2608         if (lsa->lsa_nr_tgts > 0) {
2609                 if (lsa->lsa_stripe_count > 0 &&
2610                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2611                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2612                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2613                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2614                                 lsa->lsa_stripe_count,
2615                                 lsa->lsa_nr_tgts);
2616                         errno = EINVAL;
2617                         return -1;
2618                 }
2619                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2620                         rc = llapi_layout_ost_index_set(layout, i,
2621                                                         lsa->lsa_tgts[i]);
2622                         if (rc)
2623                                 break;
2624                 }
2625         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2626                    lsa->lsa_stripe_off != -1) {
2627                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2628         }
2629         if (rc) {
2630                 fprintf(stderr, "Set ost index %d failed. %s\n",
2631                         i, strerror(errno));
2632                 return rc;
2633         }
2634
2635         /* Create the second, virtual component of extension space */
2636         if (lsa->lsa_extension_comp) {
2637                 lsa->lsa_comp_flags |= LCME_FL_EXTENSION;
2638                 lsa->lsa_extension_comp = false;
2639                 goto new_comp;
2640         }
2641
2642         return rc;
2643 }
2644
2645 static int build_component(struct llapi_layout **layout,
2646                            struct lfs_setstripe_args *lsa, bool set_extent)
2647 {
2648         int rc;
2649
2650         rc = comp_args_to_layout(layout, lsa, set_extent);
2651         if (rc)
2652                 return rc;
2653
2654         if (lsa->lsa_mirror_count > 0) {
2655                 rc = llapi_layout_mirror_count_set(*layout,
2656                                                    lsa->lsa_mirror_count);
2657                 if (rc)
2658                         return rc;
2659
2660                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2661                 if (rc)
2662                         return rc;
2663                 lsa->lsa_mirror_count = 0;
2664         }
2665
2666         return rc;
2667 }
2668
2669 static int build_prev_component(struct llapi_layout **layout,
2670                                 struct lfs_setstripe_args *prev,
2671                                 struct lfs_setstripe_args *lsa,
2672                                 bool set_extent)
2673 {
2674         int extension = lsa->lsa_comp_flags & LCME_FL_EXTENSION;
2675         int rc;
2676
2677         if (prev->lsa_stripe_size) {
2678                 if (extension) {
2679                         prev->lsa_comp_end = lsa->lsa_comp_end;
2680                         prev->lsa_extension_size = lsa->lsa_extension_size;
2681                         prev->lsa_extension_comp = true;
2682                 }
2683
2684                 rc = build_component(layout, prev, true);
2685                 if (rc)
2686                         return rc;
2687         }
2688
2689         /*
2690          * Copy lsa to previous lsa;
2691          * if this is an extension component, make the previous invalid;
2692          */
2693         if (extension)
2694                 prev->lsa_stripe_size = 0;
2695         else
2696                 *prev = *lsa;
2697
2698         return 0;
2699 }
2700
2701 static int build_layout_from_yaml_node(struct cYAML *node,
2702                                        struct llapi_layout **layout,
2703                                        struct lfs_setstripe_args *lsa,
2704                                        struct lfs_setstripe_args *prevp)
2705 {
2706         struct lfs_setstripe_args prev = { 0 };
2707         __u32 *osts = lsa->lsa_tgts;
2708         char *string;
2709         int rc = 0;
2710
2711         if (!prevp)
2712                 prevp = &prev;
2713
2714         while (node) {
2715                 string = node->cy_string;
2716
2717                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2718                         /* go deep to sub blocks */
2719                         if (string && !strncmp(string, "component", 9) &&
2720                             strncmp(string, "component0", 10) &&
2721                             strncmp(string, "components", 10)) {
2722                                 rc = build_prev_component(layout, prevp, lsa,
2723                                                           true);
2724                                 if (rc)
2725                                         return rc;
2726
2727                                 /* initialize lsa. */
2728                                 setstripe_args_init(lsa);
2729                                 lsa->lsa_first_comp = false;
2730                                 lsa->lsa_tgts = osts;
2731                         }
2732
2733                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2734                                                          lsa, prevp);
2735                         if (rc)
2736                                 return rc;
2737                 } else {
2738                         if (!node->cy_string)
2739                                 return -EINVAL;
2740
2741                         /* skip leading lmm_ if present, to simplify parsing */
2742                         if (strncmp(string, "lmm_", 4) == 0)
2743                                 string += 4;
2744
2745                         if (node->cy_type == CYAML_TYPE_STRING) {
2746                                 if (!strcmp(string, "lcme_extent.e_end")) {
2747                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2748                                             !strcmp(node->cy_valuestring, "eof"))
2749                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2750                                 } else if (!strcmp(string, "pool")) {
2751                                         lsa->lsa_pool_name = node->cy_valuestring;
2752                                 } else if (!strcmp(string, "pattern")) {
2753                                         if (!strcmp(node->cy_valuestring, "mdt"))
2754                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2755                                         if (!strcmp(node->cy_valuestring,
2756                                                     "raid0,overstriped"))
2757                                                 lsa->lsa_pattern =
2758                                                         LLAPI_LAYOUT_OVERSTRIPING;
2759                                 } else if (!strcmp(string, "lcme_flags")) {
2760                                         rc = comp_str2flags(node->cy_valuestring,
2761                                                             &lsa->lsa_comp_flags,
2762                                                             &lsa->lsa_comp_neg_flags);
2763                                         if (rc)
2764                                                 return rc;
2765                                         /*
2766                                          * Only template flags have meaning in
2767                                          * the layout for a new file
2768                                          */
2769                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2770                                 }
2771                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2772                                 if (!strcmp(string, "lcm_mirror_count")) {
2773                                         lsa->lsa_mirror_count = node->cy_valueint;
2774                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2775                                         if (node->cy_valueint == 0)
2776                                                 lsa->lsa_first_comp = true;
2777                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2778                                         if (node->cy_valueint == -1)
2779                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2780                                         else
2781                                                 lsa->lsa_comp_end = node->cy_valueint;
2782                                 } else if (!strcmp(string, "stripe_count")) {
2783                                         lsa->lsa_stripe_count = node->cy_valueint;
2784                                 } else if (!strcmp(string, "stripe_size")) {
2785                                         lsa->lsa_stripe_size = node->cy_valueint;
2786                                 } else if (!strcmp(string, "extension_size")) {
2787                                         lsa->lsa_extension_size = node->cy_valueint;
2788                                         lsa->lsa_extension_comp = true;
2789                                 } else if (!strcmp(string, "stripe_offset")) {
2790                                         lsa->lsa_stripe_off = node->cy_valueint;
2791                                 } else if (!strcmp(string, "l_ost_idx")) {
2792                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2793                                         lsa->lsa_nr_tgts++;
2794                                 }
2795                         }
2796                 }
2797                 node = node->cy_next;
2798         }
2799
2800         if (prevp == &prev) {
2801                 rc = build_prev_component(layout, prevp, lsa, true);
2802                 if (rc)
2803                         return rc;
2804
2805                 if (!(lsa->lsa_comp_flags & LCME_FL_EXTENSION))
2806                         rc = build_component(layout, lsa, *layout != NULL);
2807         }
2808
2809         return rc;
2810 }
2811
2812 static int lfs_comp_create_from_yaml(char *template,
2813                                      struct llapi_layout **layout,
2814                                      struct lfs_setstripe_args *lsa,
2815                                      __u32 *osts)
2816 {
2817         struct cYAML *tree = NULL, *err_rc = NULL;
2818         int rc = 0;
2819
2820         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2821         if (!tree) {
2822                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2823                         progname, template);
2824                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2825                                   "can't parse", &err_rc);
2826                 cYAML_print_tree2file(stderr, err_rc);
2827                 cYAML_free_tree(err_rc);
2828                 rc = -EINVAL;
2829                 goto err;
2830         }
2831
2832         /* initialize lsa for plain file */
2833         setstripe_args_init(lsa);
2834         lsa->lsa_tgts = osts;
2835
2836         rc = build_layout_from_yaml_node(tree, layout, lsa, NULL);
2837         if (rc) {
2838                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2839                         progname, template);
2840                 goto err;
2841         }
2842         /* clean clean lsa */
2843         setstripe_args_init(lsa);
2844
2845 err:
2846         if (tree)
2847                 cYAML_free_tree(tree);
2848         return rc;
2849 }
2850
2851 /**
2852  * Get the extension size from the next (SEL) component and extend the
2853  * current component on it. The start of the next component is to be
2854  * adjusted as well.
2855  *
2856  * \param[in] layout    the current layout
2857  * \param[in] start     the start of the current component
2858  * \param[in,out] end   the end of the current component
2859  * \param[in] offset    the offset to adjust the end position to instead of
2860  *                      extension size
2861  *
2862  * \retval 0            - extended successfully
2863  * \retval < 0          - error
2864  */
2865 static int layout_extend_comp(struct llapi_layout *layout,
2866                               uint64_t start, uint64_t *end,
2867                               uint64_t offset)
2868 {
2869         uint64_t size, next_start, next_end;
2870         int rc;
2871
2872         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
2873         if (rc < 0) {
2874                 fprintf(stderr,
2875                         "%s setstripe: cannot move component cursor: %s\n",
2876                         progname, strerror(errno));
2877                 return rc;
2878         }
2879
2880         /*
2881          * Even if the @size will not be used below, this will fail if
2882          * this is not a SEL component - a good confirmation we are
2883          * working on right components.
2884          */
2885         rc = llapi_layout_extension_size_get(layout, &size);
2886         if (rc < 0) {
2887                 fprintf(stderr,
2888                         "%s setstripe: cannot get component ext size: %s\n",
2889                         progname, strerror(errno));
2890                 return rc;
2891         }
2892
2893         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
2894         if (rc) {
2895                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2896                         progname, strerror(errno));
2897                 return rc;
2898         }
2899
2900         next_start += offset ?: size;
2901         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
2902         if (rc) {
2903                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
2904                         progname, strerror(errno));
2905                 return rc;
2906         }
2907
2908         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
2909         if (rc < 0) {
2910                 fprintf(stderr,
2911                         "%s setstripe: cannot move component cursor: %s\n",
2912                         progname, strerror(errno));
2913                 return rc;
2914         }
2915
2916         *end += offset ?: size;
2917         rc = llapi_layout_comp_extent_set(layout, start, *end);
2918         if (rc) {
2919                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
2920                         progname, strerror(errno));
2921                 return rc;
2922         }
2923
2924         return 0;
2925 }
2926
2927 /**
2928  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
2929  * end of the last component in the existing file, and adjust the
2930  * first extent start of the components to be added accordingly.
2931  *
2932  * In the create mode, we need to check if the first component is an extendable
2933  * SEL component and extend its length to the extension size (first component
2934  * of the PFL file is initialised at the create time, cannot be 0-lenght.
2935  */
2936 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
2937                                       bool comp_add)
2938 {
2939         struct llapi_layout *head;
2940         uint64_t start = 0, prev_end = 0;
2941         uint64_t end;
2942         int rc, ret = 0;
2943
2944         if (!layout || !(comp_add || llapi_layout_is_composite(layout)))
2945                 return 0;
2946
2947         errno = 0;
2948         while (comp_add) {
2949                 head = llapi_layout_get_by_path(fname, 0);
2950                 if (!head) {
2951                         fprintf(stderr,
2952                                 "%s setstripe: cannot read layout from '%s': %s\n",
2953                                 progname, fname, strerror(errno));
2954                         return -EINVAL;
2955                 } else if (errno == ENODATA) {
2956                         /*
2957                          * file without LOVEA, this component-add will be turned
2958                          * into a component-create.
2959                          */
2960                         llapi_layout_free(head);
2961                         ret = -ENODATA;
2962
2963                         /*
2964                          * the new layout will be added to an empty one, it
2965                          * still needs to be adjusted below
2966                          */
2967                         comp_add = 0;
2968                         break;
2969                 } else if (!llapi_layout_is_composite(head)) {
2970                         fprintf(stderr,
2971                                 "%s setstripe: '%s' not a composite file\n",
2972                                 progname, fname);
2973                         llapi_layout_free(head);
2974                         return -EINVAL;
2975                 }
2976
2977                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
2978                 if (rc) {
2979                         fprintf(stderr,
2980                                 "%s setstripe: cannot get prev extent: %s\n",
2981                                 progname, strerror(errno));
2982                         llapi_layout_free(head);
2983                         return rc;
2984                 }
2985
2986                 llapi_layout_free(head);
2987                 break;
2988         }
2989
2990         /* Make sure we use the first component of the layout to be added. */
2991         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
2992         if (rc < 0) {
2993                 fprintf(stderr,
2994                         "%s setstripe: cannot move component cursor: %s\n",
2995                         progname, strerror(errno));
2996                 return rc;
2997         }
2998
2999         rc = llapi_layout_comp_extent_get(layout, &start, &end);
3000         if (rc) {
3001                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3002                         progname, strerror(errno));
3003                 return rc;
3004         }
3005
3006         if (start == 0 && end == 0) {
3007                 rc = layout_extend_comp(layout, start, &end,
3008                                         comp_add ? prev_end : 0);
3009                 if (rc)
3010                         return rc;
3011         }
3012
3013         if (start > prev_end || end < prev_end) {
3014                 fprintf(stderr,
3015                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
3016                         progname, start, end, prev_end);
3017                 return -EINVAL;
3018         }
3019
3020         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
3021         if (rc) {
3022                 fprintf(stderr,
3023                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
3024                         progname, prev_end, end, strerror(errno));
3025                 return rc;
3026         }
3027
3028         return ret;
3029 }
3030
3031 static int mirror_adjust_first_extents(struct mirror_args *list)
3032 {
3033         int rc = 0;
3034
3035         if (!list)
3036                 return 0;
3037
3038         while (list) {
3039                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
3040                 if (rc)
3041                         break;
3042                 list = list->m_next;
3043         }
3044
3045         return rc;
3046 }
3047
3048 static inline bool arg_is_eof(char *arg)
3049 {
3050         return !strncmp(arg, "-1", strlen("-1")) ||
3051                !strncmp(arg, "EOF", strlen("EOF")) ||
3052                !strncmp(arg, "eof", strlen("eof"));
3053 }
3054
3055 /**
3056  * lfs_mirror_alloc() - Allocate a mirror argument structure.
3057  *
3058  * Return: Valid mirror_args pointer on success and
3059  *         NULL if memory allocation fails.
3060  */
3061 static struct mirror_args *lfs_mirror_alloc(void)
3062 {
3063         struct mirror_args *mirror = NULL;
3064
3065         while (1) {
3066                 mirror = calloc(1, sizeof(*mirror));
3067                 if (mirror) {
3068                         mirror->m_inherit = false;
3069                         break;
3070                 }
3071
3072                 sleep(1);
3073         }
3074
3075         return mirror;
3076 }
3077
3078 /**
3079  * lfs_mirror_free() - Free memory allocated for a mirror argument
3080  *                     structure.
3081  * @mirror: Previously allocated mirror argument structure by
3082  *          lfs_mirror_alloc().
3083  *
3084  * Free memory allocated for @mirror.
3085  *
3086  * Return: void.
3087  */
3088 static void lfs_mirror_free(struct mirror_args *mirror)
3089 {
3090         if (mirror->m_layout)
3091                 llapi_layout_free(mirror->m_layout);
3092         free(mirror);
3093 }
3094
3095 /**
3096  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
3097  * @mirror_list: Previously allocated mirror list.
3098  *
3099  * Free memory allocated for @mirror_list.
3100  *
3101  * Return: void.
3102  */
3103 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
3104 {
3105         struct mirror_args *next_mirror = NULL;
3106
3107         while (mirror_list) {
3108                 next_mirror = mirror_list->m_next;
3109                 lfs_mirror_free(mirror_list);
3110                 mirror_list = next_mirror;
3111         }
3112 }
3113
3114 enum {
3115         LFS_POOL_OPT = 3,
3116         LFS_COMP_COUNT_OPT,
3117         LFS_COMP_START_OPT,
3118         LFS_COMP_FLAGS_OPT,
3119         LFS_COMP_DEL_OPT,
3120         LFS_COMP_SET_OPT,
3121         LFS_COMP_ADD_OPT,
3122         LFS_COMP_NO_VERIFY_OPT,
3123         LFS_PROJID_OPT,
3124         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
3125         LFS_MIRROR_ID_OPT,
3126         LFS_MIRROR_STATE_OPT,
3127         LFS_LAYOUT_COPY,
3128         LFS_MIRROR_INDEX_OPT,
3129         LFS_LAYOUT_FOREIGN_OPT,
3130         LFS_MODE_OPT,
3131         LFS_NEWERXY_OPT,
3132 };
3133
3134 /* functions */
3135 static int lfs_setstripe_internal(int argc, char **argv,
3136                                   enum setstripe_origin opc)
3137 {
3138         struct lfs_setstripe_args        lsa = { 0 };
3139         struct llapi_stripe_param       *param = NULL;
3140         struct find_param                migrate_mdt_param = {
3141                 .fp_max_depth = -1,
3142                 .fp_mdt_index = -1,
3143         };
3144         char                            *fname;
3145         int                              result = 0;
3146         int                              result2 = 0;
3147         char                            *end;
3148         int                              c;
3149         int                              delete = 0;
3150         unsigned long long               size_units = 1;
3151         bool                             migrate_mode = false;
3152         bool                             migrate_mdt_mode = false;
3153         bool                             setstripe_mode = false;
3154         bool                             migration_block = false;
3155         __u64                            migration_flags = 0;
3156         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3157         int                              comp_del = 0, comp_set = 0;
3158         int                              comp_add = 0;
3159         __u32                            comp_id = 0;
3160         struct llapi_layout             *layout = NULL;
3161         struct llapi_layout             **lpp = &layout;
3162         bool                             mirror_mode = false;
3163         bool                             has_m_file = false;
3164         __u32                            mirror_count = 0;
3165         enum mirror_flags                mirror_flags = 0;
3166         struct mirror_args              *mirror_list = NULL;
3167         struct mirror_args              *new_mirror = NULL;
3168         struct mirror_args              *last_mirror = NULL;
3169         __u16                            mirror_id = 0;
3170         char                             cmd[PATH_MAX];
3171         bool from_yaml = false;
3172         bool from_copy = false;
3173         char *template = NULL;
3174         bool foreign_mode = false;
3175         char *xattr = NULL;
3176         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3177         char *mode_opt = NULL;
3178         mode_t previous_umask = 0;
3179         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3180
3181         struct option long_opts[] = {
3182 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3183 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3184         /* --block is only valid in migrate mode */
3185         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3186 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
3187         { .val = LFS_COMP_ADD_OPT,
3188                         .name = "comp-add",     .has_arg = no_argument },
3189         { .val = LFS_COMP_ADD_OPT,
3190                         .name = "component-add", .has_arg = no_argument },
3191         { .val = LFS_COMP_DEL_OPT,
3192                         .name = "comp-del",     .has_arg = no_argument },
3193         { .val = LFS_COMP_DEL_OPT,
3194                         .name = "component-del", .has_arg = no_argument },
3195         { .val = LFS_COMP_FLAGS_OPT,
3196                         .name = "comp-flags",   .has_arg = required_argument },
3197         { .val = LFS_COMP_FLAGS_OPT,
3198                         .name = "component-flags",
3199                                                 .has_arg = required_argument },
3200         { .val = LFS_COMP_SET_OPT,
3201                         .name = "comp-set",     .has_arg = no_argument },
3202         { .val = LFS_COMP_SET_OPT,
3203                         .name = "component-set",
3204                                                 .has_arg = no_argument},
3205         { .val = LFS_COMP_NO_VERIFY_OPT,
3206                         .name = "no-verify",    .has_arg = no_argument},
3207         { .val = LFS_LAYOUT_FLAGS_OPT,
3208                         .name = "flags",        .has_arg = required_argument},
3209         { .val = LFS_LAYOUT_FOREIGN_OPT,
3210                         .name = "foreign",      .has_arg = optional_argument},
3211         { .val = LFS_MIRROR_ID_OPT,
3212                         .name = "mirror-id",    .has_arg = required_argument},
3213         { .val = LFS_MODE_OPT,
3214                         .name = "mode",         .has_arg = required_argument},
3215         { .val = LFS_LAYOUT_COPY,
3216                         .name = "copy",         .has_arg = required_argument},
3217         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3218         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3219         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3220         { .val = 'C',   .name = "overstripe-count",
3221                                                 .has_arg = required_argument},
3222         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3223         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3224         /* --non-direct is only valid in migrate mode */
3225         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3226         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3227         { .val = 'E',   .name = "component-end",
3228                                                 .has_arg = required_argument},
3229         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3230 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3231 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3232 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3233 /* find { .val = 'h',   .name = "help",         .has_arg = no_argument }, */
3234         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3235         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3236         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3237         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3238         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3239 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3240         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3241         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3242         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3243         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3244         /* --non-block is only valid in migrate mode */
3245         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3246         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3247         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3248 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3249         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3250         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3251 #endif
3252         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3253 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3254 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3255 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3256 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3257         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3258         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3259 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3260 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3261 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3262 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3263         /* --verbose is only valid in migrate mode */
3264         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3265         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3266         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3267         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3268         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3269         { .name = NULL } };
3270
3271         setstripe_args_init(&lsa);
3272
3273         migrate_mode = (opc == SO_MIGRATE);
3274         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3275         setstripe_mode = (opc == SO_SETSTRIPE);
3276         if (opc == SO_MIRROR_DELETE) {
3277                 delete = 1;
3278                 mirror_flags = MF_DESTROY;
3279         }
3280
3281         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3282         progname = cmd;
3283         while ((c = getopt_long(argc, argv,
3284                                 "bc:C:dDE:f:H:i:I:m:N::no:p:L:s:S:vx:y:z:",
3285                                 long_opts, NULL)) >= 0) {
3286                 size_units = 1;
3287                 switch (c) {
3288                 case 0:
3289                         /* Long options. */
3290                         break;
3291                 case LFS_COMP_ADD_OPT:
3292                         comp_add = 1;
3293                         break;
3294                 case LFS_COMP_DEL_OPT:
3295                         comp_del = 1;
3296                         break;
3297                 case LFS_COMP_FLAGS_OPT:
3298                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3299                                                 &lsa.lsa_comp_neg_flags);
3300                         if (result != 0)
3301                                 goto usage_error;
3302                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3303                                 fprintf(stderr,
3304                                         "%s: inverted flags are not supported\n",
3305                                         progname);
3306                                 goto usage_error;
3307                         }
3308                         break;
3309                 case LFS_COMP_SET_OPT:
3310                         comp_set = 1;
3311                         break;
3312                 case LFS_COMP_NO_VERIFY_OPT:
3313                         mirror_flags |= MF_NO_VERIFY;
3314                         break;
3315                 case LFS_MIRROR_ID_OPT:
3316                         mirror_id = strtoul(optarg, &end, 0);
3317                         if (*end != '\0' || mirror_id == 0) {
3318                                 fprintf(stderr,
3319                                         "%s %s: invalid mirror ID '%s'\n",
3320                                         progname, argv[0], optarg);
3321                                 goto usage_error;
3322                         }
3323                         break;
3324                 case LFS_LAYOUT_FLAGS_OPT: {
3325                         uint32_t neg_flags;
3326
3327                         /* check for numeric flags (foreign and mirror cases) */
3328                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3329                                 flags = strtoul(optarg, &end, 16);
3330                                 if (*end != '\0') {
3331                                         fprintf(stderr,
3332                                                 "%s %s: bad flags '%s'\n",
3333                                                 progname, argv[0], optarg);
3334                                         return CMD_HELP;
3335                                 }
3336                                 break;
3337                         }
3338
3339                         if (!mirror_mode || !last_mirror) {
3340                                 fprintf(stderr,
3341                                         "error: %s: --flags must be specified with --mirror-count|-N option\n",
3342                                         progname);
3343                                 goto usage_error;
3344                         }
3345
3346                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3347                                                 &neg_flags);
3348                         if (result != 0)
3349                                 goto usage_error;
3350
3351                         if (neg_flags) {
3352                                 fprintf(stderr,
3353                                         "%s: inverted flags are not supported\n",
3354                                         progname);
3355                                 result = -EINVAL;
3356                                 goto usage_error;
3357                         }
3358                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3359                                 fprintf(stderr,
3360                                         "%s: unsupported mirror flags: %s\n",
3361                                         progname, optarg);
3362                                 result = -EINVAL;
3363                                 goto error;
3364                         }
3365                         break;
3366                 }
3367                 case LFS_LAYOUT_FOREIGN_OPT:
3368                         if (optarg) {
3369                                 /* check pure numeric */
3370                                 type = strtoul(optarg, &end, 0);
3371                                 if (*end) {
3372                                         /* check name */
3373                                         type = check_foreign_type_name(optarg);
3374                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3375                                                 fprintf(stderr,
3376                                                         "%s %s: unrecognized foreign type '%s'\n",
3377                                                         progname, argv[0],
3378                                                         optarg);
3379                                                 return CMD_HELP;
3380                                         }
3381                                 }
3382                         }
3383                         foreign_mode = true;
3384                         break;
3385                 case LFS_MODE_OPT:
3386                         mode_opt = optarg;
3387                         if (mode_opt) {
3388                                 mode = strtoul(mode_opt, &end, 8);
3389                                 if (*end != '\0') {
3390                                         fprintf(stderr,
3391                                                 "%s %s: bad mode '%s'\n",
3392                                                 progname, argv[0], mode_opt);
3393                                         return CMD_HELP;
3394                                 }
3395                                 previous_umask = umask(0);
3396                         }
3397                         break;
3398                 case LFS_LAYOUT_COPY:
3399                         from_copy = true;
3400                         template = optarg;
3401                         break;
3402                 case 'b':
3403                         if (!migrate_mode) {
3404                                 fprintf(stderr,
3405                                         "%s %s: -b|--block valid only for migrate command\n",
3406                                         progname, argv[0]);
3407                                 goto usage_error;
3408                         }
3409                         migration_block = true;
3410                         break;
3411                 case 'C':
3412                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3413                                 fprintf(stderr,
3414                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3415                                         progname, argv[0]);
3416                                 goto usage_error;
3417                         }
3418                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3419                         /* fall through */
3420                 case 'c':
3421                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3422                         if (*end != '\0') {
3423                                 fprintf(stderr,
3424                                         "%s %s: invalid stripe count '%s'\n",
3425                                         progname, argv[0], optarg);
3426                                 goto usage_error;
3427                         }
3428
3429                         if (lsa.lsa_stripe_count == -1)
3430                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3431                         break;
3432                 case 'd':
3433                         /* delete the default striping pattern */
3434                         delete = 1;
3435                         if (opc == SO_MIRROR_SPLIT) {
3436                                 if (has_m_file) {
3437                                         fprintf(stderr,
3438                                               "%s %s: -d cannot used with -f\n",
3439                                                 progname, argv[0]);
3440                                         goto usage_error;
3441                                 }
3442                                 mirror_flags |= MF_DESTROY;
3443                         }
3444                         break;
3445                 case 'D':
3446                         if (!migrate_mode) {
3447                                 fprintf(stderr,
3448                                         "%s %s: -D|--non-direct is valid only for migrate command\n",
3449                                         progname, argv[0]);
3450                                 goto usage_error;
3451                         }
3452                         migration_flags |= MIGRATION_NONDIRECT;
3453                         break;
3454                 case 'E':
3455                         if (lsa.lsa_comp_end != 0) {
3456                                 result = comp_args_to_layout(lpp, &lsa, true);
3457                                 if (result) {
3458                                         fprintf(stderr, "%s: invalid layout\n",
3459                                                 progname);
3460                                         goto usage_error;
3461                                 }
3462
3463                                 setstripe_args_init_inherit(&lsa);
3464                         }
3465
3466                         if (arg_is_eof(optarg)) {
3467                                 lsa.lsa_comp_end = LUSTRE_EOF;
3468                         } else {
3469                                 result = llapi_parse_size(optarg,
3470                                                         &lsa.lsa_comp_end,
3471                                                         &size_units, 0);
3472                                 if (result) {
3473                                         fprintf(stderr,
3474                                                 "%s %s: invalid component end '%s'\n",
3475                                                 progname, argv[0], optarg);
3476                                         goto usage_error;
3477                                 }
3478                         }
3479                         break;
3480                 case 'H':
3481                         if (!migrate_mode) {
3482                                 fprintf(stderr,
3483                                         "--mdt-hash is valid only for migrate command\n");
3484                                 return CMD_HELP;
3485                         }
3486
3487                         lsa.lsa_pattern = check_hashtype(optarg);
3488                         if (lsa.lsa_pattern == 0) {
3489                                 fprintf(stderr,
3490                                         "%s %s: bad stripe hash type '%s'\n",
3491                                         progname, argv[0], optarg);
3492                                 return CMD_HELP;
3493                         }
3494                         break;
3495                 case 'i':
3496                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3497                         if (*end != '\0') {
3498                                 fprintf(stderr,
3499                                         "%s %s: invalid stripe offset '%s'\n",
3500                                         progname, argv[0], optarg);
3501                                 goto usage_error;
3502                         }
3503                         if (lsa.lsa_stripe_off == -1)
3504                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3505                         break;
3506                 case 'I':
3507                         comp_id = strtoul(optarg, &end, 0);
3508                         if (*end != '\0' || comp_id == 0 ||
3509                             comp_id > LCME_ID_MAX) {
3510                                 fprintf(stderr,
3511                                         "%s %s: invalid component ID '%s'\n",
3512                                         progname, argv[0], optarg);
3513                                 goto usage_error;
3514                         }
3515                         break;
3516                 case 'f':
3517                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3518                                 fprintf(stderr,
3519                                         "error: %s: invalid option: %s\n",
3520                                         progname, argv[optopt + 1]);
3521                                 goto usage_error;
3522                         }
3523                         if (opc == SO_MIRROR_EXTEND) {
3524                                 if (!last_mirror) {
3525                                         fprintf(stderr,
3526                                 "error: %s: '-N' must exist in front of '%s'\n",
3527                                                 progname, argv[optopt + 1]);
3528                                         goto usage_error;
3529                                 }
3530                                 last_mirror->m_file = optarg;
3531                                 last_mirror->m_count = 1;
3532                         } else {
3533                                 /* mirror split */
3534                                 if (!mirror_list)
3535                                         mirror_list = lfs_mirror_alloc();
3536                                 mirror_list->m_file = optarg;
3537                         }
3538                         has_m_file = true;
3539                         break;
3540                 case 'L':
3541                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3542                                 /* Can be only the first component */
3543                                 if (layout) {
3544                                         result = -EINVAL;
3545                                         fprintf(stderr,
3546                                                 "error: 'mdt' layout can be only the first one\n");
3547                                         goto error;
3548                                 }
3549                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3550                                         result = -EFBIG;
3551                                         fprintf(stderr,
3552                                                 "error: 'mdt' layout size is too big\n");
3553                                         goto error;
3554                                 }
3555                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3556                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3557                                 result = -EINVAL;
3558                                 fprintf(stderr,
3559                                         "error: layout '%s' is unknown, supported layouts are: 'mdt', 'raid0'\n",
3560                                         argv[optind]);
3561                                 goto error;
3562                         }
3563                         break;
3564                 case 'm':
3565                         if (!migrate_mode) {
3566                                 fprintf(stderr,
3567                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3568                                         progname, argv[0]);
3569                                 goto usage_error;
3570                         }
3571                         migrate_mdt_mode = true;
3572                         lsa.lsa_nr_tgts = parse_targets(tgts,
3573                                                 sizeof(tgts) / sizeof(__u32),
3574                                                 lsa.lsa_nr_tgts, optarg, NULL);
3575                         if (lsa.lsa_nr_tgts < 0) {
3576                                 fprintf(stderr,
3577                                         "%s %s: invalid MDT target(s) '%s'\n",
3578                                         progname, argv[0], optarg);
3579                                 return CMD_HELP;
3580                         }
3581
3582                         lsa.lsa_tgts = tgts;
3583                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3584                                 lsa.lsa_stripe_off = tgts[0];
3585                         break;
3586                 case 'n':
3587                         if (!migrate_mode) {
3588                                 fprintf(stderr,
3589                                         "%s %s: -n|--non-block valid only for migrate command\n",
3590                                         progname, argv[0]);
3591                                 goto usage_error;
3592                         }
3593                         migration_flags |= MIGRATION_NONBLOCK;
3594                         break;
3595                 case 'N':
3596                         if (opc == SO_SETSTRIPE) {
3597                                 opc = SO_MIRROR_CREATE;
3598                                 mirror_mode = true;
3599                         }
3600                         mirror_count = 1;
3601                         if (optarg) {
3602                                 mirror_count = strtoul(optarg, &end, 0);
3603                                 if (*end != '\0' || mirror_count == 0) {
3604                                         fprintf(stderr,
3605                                                 "error: %s: bad mirror count: %s\n",
3606                                                 progname, optarg);
3607                                         result = -EINVAL;
3608                                         goto error;
3609                                 }
3610                         }
3611
3612                         new_mirror = lfs_mirror_alloc();
3613                         new_mirror->m_count = mirror_count;
3614
3615                         if (!mirror_list)
3616                                 mirror_list = new_mirror;
3617
3618                         if (last_mirror) {
3619                                 /* wrap up last mirror */
3620                                 if (!setstripe_args_specified(&lsa))
3621                                         last_mirror->m_inherit = true;
3622                                 if (lsa.lsa_comp_end == 0)
3623                                         lsa.lsa_comp_end = LUSTRE_EOF;
3624
3625                                 result = comp_args_to_layout(lpp, &lsa, true);
3626                                 if (result) {
3627                                         lfs_mirror_free(new_mirror);
3628                                         goto error;
3629                                 }
3630
3631                                 setstripe_args_init_inherit(&lsa);
3632
3633                                 last_mirror->m_next = new_mirror;
3634                         }
3635
3636                         last_mirror = new_mirror;
3637                         lpp = &last_mirror->m_layout;
3638                         break;
3639                 case 'o':
3640 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3641                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3642                                 fprintf(stderr,
3643                                         "warning: '--ost-list' is deprecated, use '--ost' instead\n");
3644 #endif
3645                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3646                                 fprintf(stderr,
3647                                         "%s %s: -o|--ost incompatible with DoM layout\n",
3648                                         progname, argv[0]);
3649                                 goto usage_error;
3650                         }
3651                         /*
3652                          * -o allows overstriping, and must note it because
3653                          * parse_targets is shared with MDT striping, which
3654                          * does not allow duplicates
3655                          */
3656                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3657                         lsa.lsa_nr_tgts = parse_targets(tgts,
3658                                                 sizeof(tgts) / sizeof(__u32),
3659                                                 lsa.lsa_nr_tgts, optarg,
3660                                                 &lsa.lsa_pattern);
3661                         if (lsa.lsa_nr_tgts < 0) {
3662                                 fprintf(stderr,
3663                                         "%s %s: invalid OST target(s) '%s'\n",
3664                                         progname, argv[0], optarg);
3665                                 goto usage_error;
3666                         }
3667
3668                         lsa.lsa_tgts = tgts;
3669                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3670                                 lsa.lsa_stripe_off = tgts[0];
3671                         break;
3672                 case 'p':
3673                         if (!optarg)
3674                                 goto usage_error;
3675                         lsa.lsa_pool_name = optarg;
3676
3677                         if (strlen(lsa.lsa_pool_name) == 0 ||
3678                             strncmp(lsa.lsa_pool_name, "none",
3679                                     LOV_MAXPOOLNAME) == 0)
3680                                 lsa.lsa_pool_name = NULL;
3681                         break;
3682                 case 'S':
3683                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3684                                                   &size_units, 0);
3685                         if (result) {
3686                                 fprintf(stderr,
3687                                         "%s %s: invalid stripe size '%s'\n",
3688                                         progname, argv[0], optarg);
3689                                 goto usage_error;
3690                         }
3691                         break;
3692                 case 'v':
3693                         if (!migrate_mode) {
3694                                 fprintf(stderr,
3695                                         "%s %s: -v|--verbose valid only for migrate command\n",
3696                                         progname, argv[0]);
3697                                 goto usage_error;
3698                         }
3699                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3700                         migration_flags = MIGRATION_VERBOSE;
3701                         break;
3702                 case 'x':
3703                         xattr = optarg;
3704                         break;
3705                 case 'y':
3706                         from_yaml = true;
3707                         template = optarg;
3708                         break;
3709                 case 'z':
3710                         result = llapi_parse_size(optarg,
3711                                                   &lsa.lsa_extension_size,
3712                                                   &size_units, 0);
3713                         if (result) {
3714                                 fprintf(stderr,
3715                                         "%s %s: invalid extension size '%s'\n",
3716                                         progname, argv[0], optarg);
3717                                 goto usage_error;
3718                         }
3719
3720                         lsa.lsa_extension_comp = true;
3721                         break;
3722                 default:
3723                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3724                                 progname, argv[0], argv[optind - 1]);
3725                         goto usage_error;
3726                 }
3727         }
3728
3729         fname = argv[optind];
3730
3731         if (optind == argc) {
3732                 fprintf(stderr, "%s %s: FILE must be specified\n",
3733                         progname, argv[0]);
3734                 goto usage_error;
3735         }
3736
3737         /* lfs migrate $filename should keep the file's layout by default */
3738         if (migrate_mode && !setstripe_args_specified(&lsa) && !layout &&
3739             !from_yaml)
3740                 from_copy = true;
3741
3742         if (xattr && !foreign_mode) {
3743                 /*
3744                  * only print a warning as this is harmless and will be ignored
3745                  */
3746                 fprintf(stderr,
3747                         "%s %s: xattr has been specified for non-foreign layout\n",
3748                         progname, argv[0]);
3749         } else if (foreign_mode && !xattr) {
3750                 fprintf(stderr,
3751                         "%s %s: xattr must be provided in foreign mode\n",
3752                         progname, argv[0]);
3753                 goto usage_error;
3754         }
3755
3756         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
3757             comp_set || comp_id || delete || from_copy ||
3758             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
3759             lsa.lsa_tgts)) {
3760                 fprintf(stderr,
3761                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
3762                         progname, argv[0]);
3763                 return CMD_HELP;
3764         }
3765
3766         if (mirror_mode && mirror_count == 0) {
3767                 fprintf(stderr,
3768                         "error: %s: --mirror-count|-N option is required\n",
3769                         progname);
3770                 result = -EINVAL;
3771                 goto error;
3772         }
3773
3774         if (mirror_mode) {
3775                 if (!setstripe_args_specified(&lsa))
3776                         last_mirror->m_inherit = true;
3777                 if (lsa.lsa_comp_end == 0)
3778                         lsa.lsa_comp_end = LUSTRE_EOF;
3779         }
3780
3781         if (lsa.lsa_comp_end != 0) {
3782                 result = comp_args_to_layout(lpp, &lsa, true);
3783                 if (result) {
3784                         fprintf(stderr, "error: %s: invalid layout\n",
3785                                 progname);
3786                         result = -EINVAL;
3787                         goto error;
3788                 }
3789         }
3790
3791         if (mirror_flags & MF_NO_VERIFY) {
3792                 if (opc != SO_MIRROR_EXTEND) {
3793                         fprintf(stderr,
3794                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
3795                                 progname);
3796                         result = -EINVAL;
3797                         goto error;
3798                 } else if (!has_m_file) {
3799                         fprintf(stderr,
3800                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
3801                                 progname);
3802                         result = -EINVAL;
3803                         goto error;
3804                 }
3805         }
3806
3807         if (comp_set && !comp_id) {
3808                 fprintf(stderr,
3809                         "%s %s: --component-set doesn't have component-id set\n",
3810                         progname, argv[0]);
3811                 goto usage_error;
3812         }
3813
3814         if ((delete + comp_set + comp_del + comp_add) > 1) {
3815                 fprintf(stderr,
3816                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
3817                         progname, argv[0]);
3818                 goto usage_error;
3819         }
3820
3821         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
3822                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
3823                 fprintf(stderr,
3824                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
3825                         progname, argv[0]);
3826                 goto usage_error;
3827         }
3828
3829         if ((comp_set || comp_del) &&
3830             (setstripe_args_specified(&lsa) || layout != NULL)) {
3831                 fprintf(stderr,
3832                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3833                         progname, argv[0]);
3834                 goto usage_error;
3835         }
3836
3837         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3838                 fprintf(stderr,
3839                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3840                         progname, argv[0]);
3841                 goto usage_error;
3842         }
3843
3844         if (comp_add || comp_del) {
3845                 struct stat st;
3846
3847                 result = lstat(fname, &st);
3848                 if (result == 0 && S_ISDIR(st.st_mode)) {
3849                         fprintf(stderr,
3850                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3851                                 progname);
3852                         goto usage_error;
3853                 }
3854
3855                 if (mirror_mode) {
3856                         fprintf(stderr,
3857                                 "error: %s: can't use --component-add or --component-del for mirror operation\n",
3858                                 progname);
3859                         goto usage_error;
3860                 }
3861         }
3862
3863         if (comp_add) {
3864                 if (!layout) {
3865                         fprintf(stderr,
3866                                 "%s %s: option -E must be specified with --component-add\n",
3867                                 progname, argv[0]);
3868                         goto usage_error;
3869                 }
3870         }
3871
3872         if (from_yaml && from_copy) {
3873                 fprintf(stderr,
3874                         "%s: can't specify --yaml and --copy together\n",
3875                         progname);
3876                 goto error;
3877         }
3878
3879         if ((from_yaml || from_copy) &&
3880             (setstripe_args_specified(&lsa) || layout != NULL)) {
3881                 fprintf(stderr,
3882                         "error: %s: can't specify --yaml or --copy with -c, -S, -i, -o, -p or -E options.\n",
3883                         argv[0]);
3884                 goto error;
3885         }
3886
3887         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
3888                 fprintf(stderr,
3889                         "%s %s: options --non-block and --block are mutually exclusive\n",
3890                         progname, argv[0]);
3891                 goto usage_error;
3892         }
3893
3894         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
3895             opc != SO_MIRROR_DELETE && comp_id != 0) {
3896                 fprintf(stderr,
3897                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
3898                         progname);
3899                 goto usage_error;
3900         }
3901
3902         if (migrate_mdt_mode) {
3903                 struct lmv_user_md *lmu;
3904
3905                 /* initialize migrate mdt parameters */
3906                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
3907                                                  LMV_USER_MAGIC_SPECIFIC));
3908                 if (!lmu) {
3909                         fprintf(stderr,
3910                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
3911                                 progname, argv[0], strerror(ENOMEM));
3912                         result = -ENOMEM;
3913                         goto error;
3914                 }
3915                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
3916                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
3917                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
3918                         fprintf(stderr,
3919                                 "%s %s: migrate should specify MDT index\n",
3920                                 progname, argv[0]);
3921                         free(lmu);
3922                         goto usage_error;
3923                 }
3924                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
3925                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
3926                         lmu->lum_hash_type = lsa.lsa_pattern;
3927                 else
3928                         lmu->lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
3929                 if (lsa.lsa_pool_name) {
3930                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
3931                                 sizeof(lmu->lum_pool_name) - 1);
3932                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
3933                 }
3934                 if (lsa.lsa_nr_tgts > 1) {
3935                         int i;
3936
3937                         if (lsa.lsa_stripe_count > 0 &&
3938                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3939                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
3940                                 fprintf(stderr,
3941                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
3942                                         progname, lsa.lsa_stripe_count,
3943                                         lsa.lsa_nr_tgts);
3944                                 free(lmu);
3945                                 goto usage_error;
3946                         }
3947
3948                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
3949                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
3950                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
3951                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
3952                 } else {
3953                         lmu->lum_magic = LMV_USER_MAGIC;
3954                 }
3955
3956                 migrate_mdt_param.fp_lmv_md = lmu;
3957                 migrate_mdt_param.fp_migrate = 1;
3958         } else if (!layout) {
3959                 /* initialize stripe parameters */
3960                 param = calloc(1, offsetof(typeof(*param),
3961                                lsp_osts[lsa.lsa_nr_tgts]));
3962                 if (!param) {
3963                         fprintf(stderr,
3964                                 "%s %s: cannot allocate memory for parameters: %s\n",
3965                                 progname, argv[0], strerror(ENOMEM));
3966                         result = -ENOMEM;
3967                         goto error;
3968                 }
3969
3970                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
3971                         param->lsp_stripe_size = lsa.lsa_stripe_size;
3972                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
3973                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
3974                                 param->lsp_stripe_count = -1;
3975                         else
3976                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3977                 }
3978                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3979                         param->lsp_stripe_offset = -1;
3980                 else
3981                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
3982                 param->lsp_stripe_pattern =
3983                                 llapi_pattern_to_lov(lsa.lsa_pattern);
3984                 if (param->lsp_stripe_pattern == EINVAL) {
3985                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
3986                                 argv[0]);
3987                         free(param);
3988                         goto usage_error;
3989                 }
3990                 param->lsp_pool = lsa.lsa_pool_name;
3991                 param->lsp_is_specific = false;
3992                 if (lsa.lsa_nr_tgts > 0) {
3993                         if (lsa.lsa_stripe_count > 0 &&
3994                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3995                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
3996                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
3997                                 fprintf(stderr,
3998                                         "error: %s: stripe count %lld doesn't match the number of OSTs: %d\n",
3999                                         argv[0], lsa.lsa_stripe_count,
4000                                         lsa.lsa_nr_tgts);
4001                                 free(param);
4002                                 goto usage_error;
4003                         }
4004
4005                         param->lsp_is_specific = true;
4006                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
4007                         memcpy(param->lsp_osts, tgts,
4008                                sizeof(*tgts) * lsa.lsa_nr_tgts);
4009                 }
4010         }
4011
4012         if (from_yaml) {
4013                 /* generate a layout from a YAML template */
4014                 result = lfs_comp_create_from_yaml(template, &layout,
4015                                                    &lsa, tgts);
4016                 if (result) {
4017                         fprintf(stderr,
4018                                 "error: %s: can't create composite layout from template file %s\n",
4019                                 argv[0], template);
4020                         goto error;
4021                 }
4022         }
4023
4024         if (layout != NULL || mirror_list != NULL) {
4025                 if (mirror_list)
4026                         result = mirror_adjust_first_extents(mirror_list);
4027                 else
4028                         result = layout_adjust_first_extent(fname, layout,
4029                                                             comp_add);
4030                 if (result == -ENODATA)
4031                         comp_add = 0;
4032                 else if (result != 0) {
4033                         fprintf(stderr, "error: %s: invalid layout\n",
4034                                 progname);
4035                         goto error;
4036                 }
4037         }
4038
4039         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
4040                 if (from_copy) {
4041                         layout = llapi_layout_get_by_path(template ?: fname, 0);
4042                         if (!layout) {
4043                                 fprintf(stderr,
4044                                         "%s: can't create composite layout from file %s.\n",
4045                                         progname, template ?: fname);
4046                                 goto error;
4047                         }
4048                 }
4049
4050                 if (migrate_mdt_mode) {
4051                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
4052                 } else if (migrate_mode) {
4053                         result = lfs_migrate(fname, migration_flags, param,
4054                                              layout);
4055                 } else if (comp_set != 0) {
4056                         result = lfs_component_set(fname, comp_id,
4057                                                    lsa.lsa_comp_flags,
4058                                                    lsa.lsa_comp_neg_flags);
4059                 } else if (comp_del != 0) {
4060                         result = lfs_component_del(fname, comp_id,
4061                                                    lsa.lsa_comp_flags,
4062                                                    lsa.lsa_comp_neg_flags);
4063                 } else if (comp_add != 0) {
4064                         result = lfs_component_add(fname, layout);
4065                 } else if (opc == SO_MIRROR_CREATE) {
4066                         result = mirror_create(fname, mirror_list);
4067                 } else if (opc == SO_MIRROR_EXTEND) {
4068                         result = mirror_extend(fname, mirror_list,
4069                                                mirror_flags);
4070                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
4071                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
4072                                 fprintf(stderr,
4073                                         "%s: no mirror specified to delete from '%s'\n",
4074                                         progname, fname);
4075                                 goto usage_error;
4076                         }
4077                         if (lsa.lsa_pool_name)
4078                                 mirror_flags |= MF_COMP_POOL;
4079                         else if (mirror_id != 0)
4080                                 comp_id = mirror_id;
4081                         else
4082                                 mirror_flags |= MF_COMP_ID;
4083                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
4084                                               mirror_flags,
4085                                               has_m_file ? mirror_list->m_file :
4086                                               NULL);
4087                 } else if (layout) {
4088                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
4089                                                       mode, layout);
4090                         if (result >= 0) {
4091                                 close(result);
4092                                 result = 0;
4093                         }
4094                 } else if (foreign_mode) {
4095                         result = llapi_file_create_foreign(fname, mode, type,
4096                                                            flags, xattr);
4097                         if (result >= 0) {
4098                                 close(result);
4099                                 result = 0;
4100                         }
4101                 } else {
4102                         result = llapi_file_open_param(fname,
4103                                                        O_CREAT | O_WRONLY,
4104                                                        mode, param);
4105                         if (result >= 0) {
4106                                 close(result);
4107                                 result = 0;
4108                         }
4109                 }
4110                 if (result) {
4111                         /* Save the first error encountered. */
4112                         if (result2 == 0)
4113                                 result2 = result;
4114                         continue;
4115                 }
4116         }
4117
4118         if (mode_opt)
4119                 umask(previous_umask);
4120
4121         free(param);
4122         free(migrate_mdt_param.fp_lmv_md);
4123         llapi_layout_free(layout);
4124         lfs_mirror_list_free(mirror_list);
4125         return result2;
4126 usage_error:
4127         result = CMD_HELP;
4128 error:
4129         llapi_layout_free(layout);
4130         lfs_mirror_list_free(mirror_list);
4131         return result;
4132 }
4133
4134 static int lfs_poollist(int argc, char **argv)
4135 {
4136         if (argc != 2)
4137                 return CMD_HELP;
4138
4139         return llapi_poollist(argv[1]);
4140 }
4141
4142 #define FP_DEFAULT_TIME_MARGIN (24 * 60 * 60)
4143 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
4144                        char *str)
4145 {
4146         long long t = 0;
4147         int sign = 0;
4148         char *endptr = "AD";
4149         char *timebuf;
4150
4151         if (str[0] == '+')
4152                 sign = 1;
4153         else if (str[0] == '-')
4154                 sign = -1;
4155
4156         if (sign)
4157                 str++;
4158
4159         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
4160                 long long val = strtoll(timebuf, &endptr, 0);
4161                 int unit = 1;
4162
4163                 switch (*endptr) {
4164                 case  'y':
4165                         unit *= 52; /* 52 weeks + 1 day below */
4166                 case  'w':      /* fallthrough */
4167                         unit *= 7;
4168                         if (param->fp_time_margin == FP_DEFAULT_TIME_MARGIN)
4169                                 param->fp_time_margin *= (1 + unit / 52);
4170                         unit += (*endptr == 'y'); /* +1 day for 365 days/year */
4171                 case '\0': /* days are default unit if none used */
4172                 case  'd':      /* fallthrough */
4173                         unit *= 24;
4174                 case  'h':      /* fallthrough */
4175                         unit *= 60;
4176                 case  'm':      /* fallthrough */
4177                         unit *= 60;
4178                 case  's':      /* fallthrough */
4179                         break;
4180                         /* don't need to multiply by 1 for seconds */
4181                 default:
4182                         fprintf(stderr,
4183                                 "%s find: bad time string '%s': %s\n",
4184                                 progname, timebuf, strerror(EINVAL));
4185                         return LONG_MAX;
4186                 }
4187
4188                 if (param->fp_time_margin == 0 ||
4189                     (*endptr && unit < param->fp_time_margin))
4190                         param->fp_time_margin = unit;
4191
4192                 t += val * unit;
4193         }
4194         if (*time < t) {
4195                 if (sign != 0)
4196                         str--;
4197                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4198                         progname, str);
4199                 return LONG_MAX;
4200         }
4201
4202         *set = *time - t;
4203
4204         return sign;
4205 }
4206
4207 static int str2quotaid(__u32 *id, const char *arg)
4208 {
4209         unsigned long int projid_tmp = 0;
4210         char *endptr = NULL;
4211
4212         projid_tmp = strtoul(arg, &endptr, 10);
4213         if (*endptr != '\0')
4214                 return -EINVAL;
4215         if (projid_tmp > UINT32_MAX ||
4216             (projid_tmp == ULONG_MAX && (errno == ERANGE)))
4217                 return -ERANGE;
4218
4219         *id = projid_tmp;
4220         return 0;
4221 }
4222
4223 static int name2uid(unsigned int *id, const char *name)
4224 {
4225         struct passwd *passwd;
4226
4227         passwd = getpwnam(name);
4228         if (!passwd)
4229                 return -ENOENT;
4230         *id = passwd->pw_uid;
4231
4232         return 0;
4233 }
4234
4235 static int name2gid(unsigned int *id, const char *name)
4236 {
4237         struct group *group;
4238
4239         group = getgrnam(name);
4240         if (!group)
4241                 return -ENOENT;
4242         *id = group->gr_gid;
4243
4244         return 0;
4245 }
4246
4247 static inline int name2projid(unsigned int *id, const char *name)
4248 {
4249         return -ENOTSUP;
4250 }
4251
4252 static int uid2name(char **name, unsigned int id)
4253 {
4254         struct passwd *passwd;
4255
4256         passwd = getpwuid(id);
4257         if (!passwd)
4258                 return -ENOENT;
4259         *name = passwd->pw_name;
4260
4261         return 0;
4262 }
4263
4264 static inline int gid2name(char **name, unsigned int id)
4265 {
4266         struct group *group;
4267
4268         group = getgrgid(id);
4269         if (!group)
4270                 return -ENOENT;
4271         *name = group->gr_name;
4272
4273         return 0;
4274 }
4275
4276 static int name2layout(__u32 *layout, char *name)
4277 {
4278         char *ptr, *layout_name;
4279
4280         *layout = 0;
4281         for (ptr = name; ; ptr = NULL) {
4282                 layout_name = strtok(ptr, ",");
4283                 if (!layout_name)
4284                         break;
4285                 if (strcmp(layout_name, "released") == 0)
4286                         *layout |= LOV_PATTERN_F_RELEASED;
4287                 else if (strcmp(layout_name, "raid0") == 0)
4288                         *layout |= LOV_PATTERN_RAID0;
4289                 else if (strcmp(layout_name, "mdt") == 0)
4290                         *layout |= LOV_PATTERN_MDT;
4291                 else if (strcmp(layout_name, "overstriping") == 0)
4292                         *layout |= LOV_PATTERN_OVERSTRIPING;
4293                 else
4294                         return -1;
4295         }
4296         return 0;
4297 }
4298
4299 static int lfs_find(int argc, char **argv)
4300 {
4301         int c, rc;
4302         int ret = 0;
4303         time_t t;
4304         struct find_param param = {
4305                 .fp_max_depth = -1,
4306                 .fp_quiet = 1,
4307                 .fp_time_margin = FP_DEFAULT_TIME_MARGIN,
4308         };
4309         struct option long_opts[] = {
4310         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4311         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4312         { .val = 'B',   .name = "btime",        .has_arg = required_argument },
4313         { .val = 'B',   .name = "Btime",        .has_arg = required_argument },
4314         { .val = LFS_COMP_COUNT_OPT,
4315                         .name = "comp-count",   .has_arg = required_argument },
4316         { .val = LFS_COMP_COUNT_OPT,
4317                         .name = "component-count",
4318                                                 .has_arg = required_argument },
4319         { .val = LFS_COMP_FLAGS_OPT,
4320                         .name = "comp-flags",   .has_arg = required_argument },
4321         { .val = LFS_COMP_FLAGS_OPT,
4322                         .name = "component-flags",
4323                                                 .has_arg = required_argument },
4324         { .val = LFS_COMP_START_OPT,
4325                         .name = "comp-start",   .has_arg = required_argument },
4326         { .val = LFS_COMP_START_OPT,
4327                         .name = "component-start",
4328                                                 .has_arg = required_argument },
4329         { .val = LFS_MIRROR_STATE_OPT,
4330                         .name = "mirror-state", .has_arg = required_argument },
4331         { .val = LFS_LAYOUT_FOREIGN_OPT,
4332                         .name = "foreign",      .has_arg = optional_argument},
4333         { .val = LFS_NEWERXY_OPT,
4334                         .name = "newer",        .has_arg = required_argument},
4335         { .val = LFS_NEWERXY_OPT,
4336                         .name = "neweraa",      .has_arg = required_argument},
4337         { .val = LFS_NEWERXY_OPT,
4338                         .name = "neweram",      .has_arg = required_argument},
4339         { .val = LFS_NEWERXY_OPT,
4340                         .name = "newerac",      .has_arg = required_argument},
4341         { .val = LFS_NEWERXY_OPT,
4342                         .name = "newerab",      .has_arg = required_argument},
4343         { .val = LFS_NEWERXY_OPT,
4344                         .name = "newerma",      .has_arg = required_argument},
4345         { .val = LFS_NEWERXY_OPT,
4346                         .name = "newermm",      .has_arg = required_argument},
4347         { .val = LFS_NEWERXY_OPT,
4348                         .name = "newermc",      .has_arg = required_argument},
4349         { .val = LFS_NEWERXY_OPT,
4350                         .name = "newermb",      .has_arg = required_argument},
4351         { .val = LFS_NEWERXY_OPT,
4352                         .name = "newerca",      .has_arg = required_argument},
4353         { .val = LFS_NEWERXY_OPT,
4354                         .name = "newercm",      .has_arg = required_argument},
4355         { .val = LFS_NEWERXY_OPT,
4356                         .name = "newercc",      .has_arg = required_argument},
4357         { .val = LFS_NEWERXY_OPT,
4358                         .name = "newercb",      .has_arg = required_argument},
4359         { .val = LFS_NEWERXY_OPT,
4360                         .name = "newerba",      .has_arg = required_argument},
4361         { .val = LFS_NEWERXY_OPT,
4362                         .name = "newerbm",      .has_arg = required_argument},
4363         { .val = LFS_NEWERXY_OPT,
4364                         .name = "newerbc",      .has_arg = required_argument},
4365         { .val = LFS_NEWERXY_OPT,
4366                         .name = "newerbb",      .has_arg = required_argument},
4367         { .val = LFS_NEWERXY_OPT,
4368                         .name = "newerBa",      .has_arg = required_argument},
4369         { .val = LFS_NEWERXY_OPT,
4370                         .name = "newerBm",      .has_arg = required_argument},
4371         { .val = LFS_NEWERXY_OPT,
4372                         .name = "newerBc",      .has_arg = required_argument},
4373         { .val = LFS_NEWERXY_OPT,
4374                         .name = "newerBB",      .has_arg = required_argument},
4375         { .val = LFS_NEWERXY_OPT,
4376                         .name = "newerat",      .has_arg = required_argument},
4377         { .val = LFS_NEWERXY_OPT,
4378                         .name = "newermt",      .has_arg = required_argument},
4379         { .val = LFS_NEWERXY_OPT,
4380                         .name = "newerct",      .has_arg = required_argument},
4381         { .val = LFS_NEWERXY_OPT,
4382                         .name = "newerbt",      .has_arg = required_argument},
4383         { .val = LFS_NEWERXY_OPT,
4384                         .name = "newerBt",      .has_arg = required_argument},
4385         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4386         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4387         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4388 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4389         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4390         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4391         { .val = 'E',   .name = "component-end",
4392                                                 .has_arg = required_argument },
4393 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4394         { .val = LFS_LAYOUT_FOREIGN_OPT,
4395                         .name = "foreign",      .has_arg = optional_argument},
4396         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4397         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4398         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4399         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4400         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4401 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4402         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4403         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4404         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4405         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4406         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4407         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4408         { .val = 'n',   .name = "name",         .has_arg = required_argument },
4409         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
4410 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
4411         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4412         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4413         /* no short option for pool yet, can be 'p' after 2.18 */
4414         { .val = LFS_POOL_OPT,
4415                         .name = "pool",         .has_arg = required_argument },
4416         { .val = '0',   .name = "print0",       .has_arg = no_argument },
4417         { .val = 'P',   .name = "print",        .has_arg = no_argument },
4418         { .val = LFS_PROJID_OPT,
4419                         .name = "projid",       .has_arg = required_argument },
4420 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
4421 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
4422 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
4423         { .val = 's',   .name = "size",         .has_arg = required_argument },
4424         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
4425         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
4426         { .val = 't',   .name = "type",         .has_arg = required_argument },
4427         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4428         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
4429         { .val = 'U',   .name = "user",         .has_arg = required_argument },
4430         { .val = 'z',   .name = "extension-size",
4431                                                 .has_arg = required_argument },
4432         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
4433 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
4434 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
4435         { .name = NULL } };
4436         int optidx = 0;
4437         int pathstart = -1;
4438         int pathend = -1;
4439         int pathbad = -1;
4440         int neg_opt = 0;
4441         time_t *xtime;
4442         int *xsign;
4443         int isoption;
4444         char *endptr;
4445
4446         time(&t);
4447
4448         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
4449         while ((c = getopt_long_only(argc, argv,
4450                 "-0A:b:B:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:vz:",
4451                 long_opts, &optidx)) >= 0) {
4452                 xtime = NULL;
4453                 xsign = NULL;
4454                 if (neg_opt)
4455                         --neg_opt;
4456                 /* '!' is part of option */
4457                 /*
4458                  * when getopt_long_only() finds a string which is not
4459                  * an option nor a known option argument it returns 1
4460                  * in that case if we already have found pathstart and pathend
4461                  * (i.e. we have the list of pathnames),
4462                  * the only supported value is "!"
4463                  */
4464                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4465                 if (!isoption && pathend != -1) {
4466                         fprintf(stderr,
4467                                 "err: %s: filename|dirname must either precede options or follow options\n",
4468                                 argv[0]);
4469                         ret = CMD_HELP;
4470                         goto err;
4471                 }
4472                 if (!isoption && pathstart == -1)
4473                         pathstart = optind - 1;
4474                 if (isoption && pathstart != -1 && pathend == -1)
4475                         pathend = optind - 2;
4476                 switch (c) {
4477                 case 0:
4478                         /* Long options. */
4479                         break;
4480                 case 1:
4481                         /*
4482                          * unknown; opt is "!" or path component,
4483                          * checking done above.
4484                          */
4485                         if (strcmp(optarg, "!") == 0)
4486                                 neg_opt = 2;
4487                         break;
4488                 case 'A':
4489                         xtime = &param.fp_atime;
4490                         xsign = &param.fp_asign;
4491                         param.fp_exclude_atime = !!neg_opt;
4492                         /* no break, this falls through to 'B' for btime */
4493                 case 'B':
4494                         if (c == 'B') {
4495                                 xtime = &param.fp_btime;
4496                                 xsign = &param.fp_bsign;
4497                                 param.fp_exclude_btime = !!neg_opt;
4498                         }
4499                         /* no break, this falls through to 'C' for ctime */
4500                 case 'C':
4501                         if (c == 'C') {
4502                                 xtime = &param.fp_ctime;
4503                                 xsign = &param.fp_csign;
4504                                 param.fp_exclude_ctime = !!neg_opt;
4505                         }
4506                         /* no break, this falls through to 'M' for mtime */
4507                 case 'M':
4508                         if (c == 'M') {
4509                                 xtime = &param.fp_mtime;
4510                                 xsign = &param.fp_msign;
4511                                 param.fp_exclude_mtime = !!neg_opt;
4512                         }
4513                         rc = set_time(&param, &t, xtime, optarg);
4514                         if (rc == LONG_MAX) {
4515                                 ret = -1;
4516                                 goto err;
4517                         }
4518                         if (rc)
4519                                 *xsign = rc;
4520                         break;
4521                 case 'b':
4522                         if (optarg[0] == '+') {
4523                                 param.fp_blocks_sign = -1;
4524                                 optarg++;
4525                         } else if (optarg[0] == '-') {
4526                                 param.fp_blocks_sign =  1;
4527                                 optarg++;
4528                         }
4529
4530                         param.fp_blocks_units = 1024;
4531                         ret = llapi_parse_size(optarg, &param.fp_blocks,
4532                                                &param.fp_blocks_units, 0);
4533                         if (ret) {
4534                                 fprintf(stderr, "error: bad blocks '%s'\n",
4535                                         optarg);
4536                                 goto err;
4537                         }
4538                         param.fp_check_blocks = 1;
4539                         param.fp_exclude_blocks = !!neg_opt;
4540                         break;
4541                 case LFS_COMP_COUNT_OPT:
4542                         if (optarg[0] == '+') {
4543                                 param.fp_comp_count_sign = -1;
4544                                 optarg++;
4545                         } else if (optarg[0] == '-') {
4546                                 param.fp_comp_count_sign =  1;
4547                                 optarg++;
4548                         }
4549
4550                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
4551                         if (*endptr != '\0') {
4552                                 fprintf(stderr,
4553                                         "error: bad component count '%s'\n",
4554                                         optarg);
4555                                 goto err;
4556                         }
4557                         param.fp_check_comp_count = 1;
4558                         param.fp_exclude_comp_count = !!neg_opt;
4559                         break;
4560                 case LFS_COMP_FLAGS_OPT:
4561                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
4562                                             &param.fp_comp_neg_flags);
4563                         if (rc) {
4564                                 fprintf(stderr,
4565                                         "error: bad component flags '%s'\n",
4566                                         optarg);
4567                                 goto err;
4568                         }
4569                         param.fp_check_comp_flags = 1;
4570                         if (neg_opt) {
4571                                 __u32 flags = param.fp_comp_neg_flags;
4572
4573                                 param.fp_comp_neg_flags = param.fp_comp_flags;
4574                                 param.fp_comp_flags = flags;
4575                         }
4576                         break;
4577                 case LFS_COMP_START_OPT:
4578                         if (optarg[0] == '+') {
4579                                 param.fp_comp_start_sign = -1;
4580                                 optarg++;
4581                         } else if (optarg[0] == '-') {
4582                                 param.fp_comp_start_sign =  1;
4583                                 optarg++;
4584                         }
4585
4586                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
4587                                               &param.fp_comp_start_units, 0);
4588                         if (rc) {
4589                                 fprintf(stderr,
4590                                         "error: bad component start '%s'\n",
4591                                         optarg);
4592                                 goto err;
4593                         }
4594                         param.fp_check_comp_start = 1;
4595                         param.fp_exclude_comp_start = !!neg_opt;
4596                         break;
4597                 case LFS_MIRROR_STATE_OPT:
4598                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
4599                                               &param.fp_mirror_neg_state);
4600                         if (rc) {
4601                                 fprintf(stderr,
4602                                         "error: bad mirrored file state '%s'\n",
4603                                         optarg);
4604                                 goto err;
4605                         }
4606                         param.fp_check_mirror_state = 1;
4607                         if (neg_opt) {
4608                                 __u16 state = param.fp_mirror_neg_state;
4609
4610                                 param.fp_mirror_neg_state =
4611                                         param.fp_mirror_state;
4612                                 param.fp_mirror_state = state;
4613                         }
4614                         break;
4615                 case 'c':
4616                         if (optarg[0] == '+') {
4617                                 param.fp_stripe_count_sign = -1;
4618                                 optarg++;
4619                         } else if (optarg[0] == '-') {
4620                                 param.fp_stripe_count_sign =  1;
4621                                 optarg++;
4622                         }
4623
4624                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
4625                         if (*endptr != '\0') {
4626                                 fprintf(stderr,
4627                                         "error: bad stripe_count '%s'\n",
4628                                         optarg);
4629                                 ret = -1;
4630                                 goto err;
4631                         }
4632                         param.fp_check_stripe_count = 1;
4633                         param.fp_exclude_stripe_count = !!neg_opt;
4634                         break;
4635                 case 'D':
4636                         param.fp_max_depth = strtol(optarg, 0, 0);
4637                         break;
4638                 case 'E':
4639                         if (optarg[0] == '+') {
4640                                 param.fp_comp_end_sign = -1;
4641                                 optarg++;
4642                         } else if (optarg[0] == '-') {
4643                                 param.fp_comp_end_sign =  1;
4644                                 optarg++;
4645                         }
4646
4647                         if (arg_is_eof(optarg)) {
4648                                 param.fp_comp_end = LUSTRE_EOF;
4649                                 param.fp_comp_end_units = 1;
4650                                 rc = 0;
4651                         } else {
4652                                 rc = llapi_parse_size(optarg,
4653                                                 &param.fp_comp_end,
4654                                                 &param.fp_comp_end_units, 0);
4655                         }
4656                         if (rc) {
4657                                 fprintf(stderr,
4658                                         "error: bad component end '%s'\n",
4659                                         optarg);
4660                                 goto err;
4661                         }
4662                         param.fp_check_comp_end = 1;
4663                         param.fp_exclude_comp_end = !!neg_opt;
4664                         break;
4665                 case LFS_LAYOUT_FOREIGN_OPT: {
4666                         /* all types by default */
4667                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
4668
4669                         if (optarg) {
4670                                 /* check pure numeric */
4671                                 type = strtoul(optarg, &endptr, 0);
4672                                 if (*endptr) {
4673                                         /* check name */
4674                                         type = check_foreign_type_name(optarg);
4675                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
4676                                                 fprintf(stderr,
4677                                                         "%s %s: unknown foreign type '%s'\n",
4678                                                         progname, argv[0],
4679                                                         optarg);
4680                                                 return CMD_HELP;
4681                                         }
4682                                 }
4683                         }
4684                         param.fp_foreign_type = type;
4685                         param.fp_check_foreign = 1;
4686                         param.fp_exclude_foreign = !!neg_opt;
4687                         break;
4688                 }
4689                 case LFS_NEWERXY_OPT: {
4690                         char x = 'm';
4691                         char y = 'm';
4692                         int xidx;
4693                         int negidx;
4694                         time_t *newery;
4695                         time_t ref = time(NULL);
4696
4697                         /* no need to check bad options, they won't get here */
4698                         if (strlen(long_opts[optidx].name) == 7) {
4699                                 x = long_opts[optidx].name[5];
4700                                 y = long_opts[optidx].name[6];
4701                         }
4702
4703                         if (y == 't') {
4704                                 static const char *const fmts[] = {
4705                                         "%Y-%m-%d %H:%M:%S",
4706                                         "%Y-%m-%d %H:%M",
4707                                         "%Y-%m-%d",
4708                                         "%H:%M:%S", /* sometime today */
4709                                         "%H:%M",
4710                                         "@%s",
4711                                         "%s",
4712                                         NULL };
4713                                 struct tm tm;
4714                                 bool found = false;
4715                                 int i;
4716
4717                                 for (i = 0; fmts[i] != NULL; i++) {
4718                                         char *ptr;
4719
4720                                         /* Init for times relative to today */
4721                                         if (strncmp(fmts[i], "%H", 2) == 0)
4722                                                 localtime_r(&ref, &tm);
4723                                         else
4724                                                 memset(&tm, 0, sizeof(tm));
4725                                         ptr = strptime(optarg, fmts[i], &tm);
4726                                         /* Skip spaces */
4727                                         while (ptr && isspace(*ptr))
4728                                                 ptr++;
4729                                         if (ptr == optarg + strlen(optarg)) {
4730                                                 found = true;
4731                                                 break;
4732                                         }
4733                                 }
4734
4735                                 if (!found) {
4736                                         fprintf(stderr,
4737                                                 "%s: invalid time '%s'\n",
4738                                                 progname, optarg);
4739                                         fprintf(stderr,
4740                                                 "supported formats are:\n  ");
4741                                         for (i = 0; fmts[i] != NULL; i++)
4742                                                 fprintf(stderr, "'%s', ",
4743                                                         fmts[i]);
4744                                         fprintf(stderr, "\n");
4745                                         ret = -EINVAL;
4746                                         goto err;
4747                                 }
4748
4749                                 ref = mktime(&tm);
4750                         } else if (y == 'b' || y == 'B') {
4751                                 lstatx_t stx;
4752
4753                                 rc = llapi_get_lum_file(optarg, NULL, &stx,
4754                                                         NULL, 0);
4755                                 if (rc || !(stx.stx_mask & STATX_BTIME)) {
4756                                         if (!(stx.stx_mask & STATX_BTIME))
4757                                                 ret = -EOPNOTSUPP;
4758                                         else
4759                                                 ret = -errno;
4760                                         fprintf(stderr,
4761                                                 "%s: get btime failed '%s': %s\n",
4762                                                 progname, optarg,
4763                                                 strerror(-ret));
4764                                         goto err;
4765                                 }
4766
4767                                 ref = stx.stx_btime.tv_sec;
4768                         } else {
4769                                 struct stat statbuf;
4770
4771                                 if (stat(optarg, &statbuf) < 0) {
4772                                         fprintf(stderr,
4773                                                 "%s: cannot stat file '%s': %s\n",
4774                                                 progname, optarg,
4775                                                 strerror(errno));
4776                                         ret = -errno;
4777                                         goto err;
4778                                 }
4779
4780                                 switch (y) {
4781                                 case 'a':
4782                                         ref = statbuf.st_atime;
4783                                         break;
4784                                 case 'm':
4785                                         ref = statbuf.st_mtime;
4786                                         break;
4787                                 case 'c':
4788                                         ref = statbuf.st_ctime;
4789                                         break;
4790                                 default:
4791                                         fprintf(stderr,
4792                                                 "%s: invalid Y argument: '%c'\n",
4793                                                 progname, x);
4794                                         ret = -EINVAL;
4795                                         goto err;
4796                                 }
4797                         }
4798
4799                         switch (x) {
4800                         case 'a':
4801                                 xidx = NEWERXY_ATIME;
4802                                 break;
4803                         case 'm':
4804                                 xidx = NEWERXY_MTIME;
4805                                 break;
4806                         case 'c':
4807                                 xidx = NEWERXY_CTIME;
4808                                 break;
4809                         case 'b':
4810                         case 'B':
4811                                 xidx = NEWERXY_BTIME;
4812                                 break;
4813                         default:
4814                                 fprintf(stderr,
4815                                         "%s: invalid X argument: '%c'\n",
4816                                         progname, x);
4817                                 ret = -EINVAL;
4818                                 goto err;
4819                         }
4820
4821                         negidx = !!neg_opt;
4822                         newery = &param.fp_newery[xidx][negidx];
4823
4824                         if (*newery == 0) {
4825                                 *newery = ref;
4826                         } else {
4827                                 if (negidx)
4828                                         *newery = *newery > ref ? ref : *newery;
4829                                 else
4830                                         *newery = *newery > ref ? *newery : ref;
4831                         }
4832                         param.fp_newerxy = 1;
4833                         break;
4834                 }
4835                 case 'g':
4836                 case 'G':
4837                         rc = name2gid(&param.fp_gid, optarg);
4838                         if (rc) {
4839                                 if (str2quotaid(&param.fp_gid, optarg)) {
4840                                         fprintf(stderr,
4841                                                 "Group/GID: %s cannot be found.\n",
4842                                                 optarg);
4843                                         ret = -1;
4844                                         goto err;
4845                                 }
4846                         }
4847                         param.fp_exclude_gid = !!neg_opt;
4848                         param.fp_check_gid = 1;
4849                         break;
4850                 case 'H':
4851                         param.fp_hash_type = check_hashtype(optarg);
4852                         if (param.fp_hash_type == 0) {
4853                                 fprintf(stderr, "error: bad hash_type '%s'\n",
4854                                         optarg);
4855                                 ret = -1;
4856                                 goto err;
4857                         }
4858                         param.fp_check_hash_type = 1;
4859                         param.fp_exclude_hash_type = !!neg_opt;
4860                         break;
4861                 case 'l':
4862                         param.fp_lazy = 1;
4863                         break;
4864                 case 'L':
4865                         ret = name2layout(&param.fp_layout, optarg);
4866                         if (ret)
4867                                 goto err;
4868                         param.fp_exclude_layout = !!neg_opt;
4869                         param.fp_check_layout = 1;
4870                         break;
4871                 case 'u':
4872                 case 'U':
4873                         rc = name2uid(&param.fp_uid, optarg);
4874                         if (rc) {
4875                                 if (str2quotaid(&param.fp_uid, optarg)) {
4876                                         fprintf(stderr,
4877                                                 "User/UID: %s cannot be found.\n",
4878                                                 optarg);
4879                                         ret = -1;
4880                                         goto err;
4881                                 }
4882                         }
4883                         param.fp_exclude_uid = !!neg_opt;
4884                         param.fp_check_uid = 1;
4885                         break;
4886                 case 'n':
4887                         param.fp_pattern = (char *)optarg;
4888                         param.fp_exclude_pattern = !!neg_opt;
4889                         break;
4890                 case 'N':
4891                         if (optarg[0] == '+') {
4892                                 param.fp_mirror_count_sign = -1;
4893                                 optarg++;
4894                         } else if (optarg[0] == '-') {
4895                                 param.fp_mirror_count_sign =  1;
4896                                 optarg++;
4897                         }
4898
4899                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
4900                         if (*endptr != '\0') {
4901                                 fprintf(stderr,
4902                                         "error: bad mirror count '%s'\n",
4903                                         optarg);
4904                                 goto err;
4905                         }
4906                         param.fp_check_mirror_count = 1;
4907                         param.fp_exclude_mirror_count = !!neg_opt;
4908                         break;
4909                 case 'm':
4910                 case 'i':
4911                 case 'O': {
4912                         char *buf, *token, *next, *p;
4913                         int len = 1;
4914                         void *tmp;
4915
4916                         buf = strdup(optarg);
4917                         if (!buf) {
4918                                 ret = -ENOMEM;
4919                                 goto err;
4920                         }
4921
4922                         param.fp_exclude_obd = !!neg_opt;
4923
4924                         token = buf;
4925                         while (token && *token) {
4926                                 token = strchr(token, ',');
4927                                 if (token) {
4928                                         len++;
4929                                         token++;
4930                                 }
4931                         }
4932                         if (c == 'm') {
4933                                 param.fp_exclude_mdt = !!neg_opt;
4934                                 param.fp_num_alloc_mdts += len;
4935                                 tmp = realloc(param.fp_mdt_uuid,
4936                                               param.fp_num_alloc_mdts *
4937                                               sizeof(*param.fp_mdt_uuid));
4938                                 if (!tmp) {
4939                                         ret = -ENOMEM;
4940                                         goto err_free;
4941                                 }
4942
4943                                 param.fp_mdt_uuid = tmp;
4944                         } else {
4945                                 param.fp_exclude_obd = !!neg_opt;
4946                                 param.fp_num_alloc_obds += len;
4947                                 tmp = realloc(param.fp_obd_uuid,
4948                                               param.fp_num_alloc_obds *
4949                                               sizeof(*param.fp_obd_uuid));
4950                                 if (!tmp) {
4951                                         ret = -ENOMEM;
4952                                         goto err_free;
4953                                 }
4954
4955                                 param.fp_obd_uuid = tmp;
4956                         }
4957                         for (token = buf; token && *token; token = next) {
4958                                 struct obd_uuid *puuid;
4959
4960                                 if (c == 'm') {
4961                                         puuid =
4962                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
4963                                 } else {
4964                                         puuid =
4965                                         &param.fp_obd_uuid[param.fp_num_obds++];
4966                                 }
4967                                 p = strchr(token, ',');
4968                                 next = 0;
4969                                 if (p) {
4970                                         *p = 0;
4971                                         next = p+1;
4972                                 }
4973
4974                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
4975                                         ret = -E2BIG;
4976                                         goto err_free;
4977                                 }
4978
4979                                 strncpy(puuid->uuid, token,
4980                                         sizeof(puuid->uuid));
4981                         }
4982 err_free:
4983                         if (buf)
4984                                 free(buf);
4985                         break;
4986                 }
4987 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
4988                 case 'p':
4989 #endif
4990                 case LFS_POOL_OPT:
4991                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
4992                                 fprintf(stderr,
4993                                         "Pool name %s is too long (max %d)\n",
4994                                         optarg, LOV_MAXPOOLNAME);
4995                                 ret = -1;
4996                                 goto err;
4997                         }
4998                         /*
4999                          * We do check for empty pool because empty pool
5000                          * is used to find V1 LOV attributes
5001                          */
5002                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
5003                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
5004                         param.fp_exclude_pool = !!neg_opt;
5005                         param.fp_check_pool = 1;
5006                         break;
5007 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
5008                 case 'p': /* want this for --pool, to match getstripe/find */
5009                         fprintf(stderr,
5010                                 "warning: -p deprecated, use --print0 or -0\n");
5011 #endif
5012                 case '0':
5013                         param.fp_zero_end = 1;
5014                         break;
5015                 case 'P': /* we always print, this option is a no-op */
5016                         break;
5017                 case LFS_PROJID_OPT:
5018                         rc = name2projid(&param.fp_projid, optarg);
5019                         if (rc) {
5020                                 if (str2quotaid(&param.fp_projid, optarg)) {
5021                                         fprintf(stderr,
5022                                                 "Invalid project ID: %s\n",
5023                                                 optarg);
5024                                         ret = -1;
5025                                         goto err;
5026                                 }
5027                         }
5028                         param.fp_exclude_projid = !!neg_opt;
5029                         param.fp_check_projid = 1;
5030                         break;
5031                 case 's':
5032                         if (optarg[0] == '+') {
5033                                 param.fp_size_sign = -1;
5034                                 optarg++;
5035                         } else if (optarg[0] == '-') {
5036                                 param.fp_size_sign =  1;
5037                                 optarg++;
5038                         }
5039
5040                         ret = llapi_parse_size(optarg, &param.fp_size,
5041                                                &param.fp_size_units, 0);
5042                         if (ret) {
5043                                 fprintf(stderr, "error: bad file size '%s'\n",
5044                                         optarg);
5045                                 goto err;
5046                         }
5047                         param.fp_check_size = 1;
5048                         param.fp_exclude_size = !!neg_opt;
5049                         break;
5050                 case 'S':
5051                         if (optarg[0] == '+') {
5052                                 param.fp_stripe_size_sign = -1;
5053                                 optarg++;
5054                         } else if (optarg[0] == '-') {
5055                                 param.fp_stripe_size_sign =  1;
5056                                 optarg++;
5057                         }
5058
5059                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
5060                                                &param.fp_stripe_size_units, 0);
5061                         if (ret) {
5062                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
5063                                         optarg);
5064                                 goto err;
5065                         }
5066                         param.fp_check_stripe_size = 1;
5067                         param.fp_exclude_stripe_size = !!neg_opt;
5068                         break;
5069                 case 't':
5070                         param.fp_exclude_type = !!neg_opt;
5071                         switch (optarg[0]) {
5072                         case 'b':
5073                                 param.fp_type = S_IFBLK;
5074                                 break;
5075                         case 'c':
5076                                 param.fp_type = S_IFCHR;
5077                                 break;
5078                         case 'd':
5079                                 param.fp_type = S_IFDIR;
5080                                 break;
5081                         case 'f':
5082                                 param.fp_type = S_IFREG;
5083                                 break;
5084                         case 'l':
5085                                 param.fp_type = S_IFLNK;
5086                                 break;
5087                         case 'p':
5088                                 param.fp_type = S_IFIFO;
5089                                 break;
5090                         case 's':
5091                                 param.fp_type = S_IFSOCK;
5092                                 break;
5093                         default:
5094                                 fprintf(stderr, "error: %s: bad type '%s'\n",
5095                                         argv[0], optarg);
5096                                 ret = CMD_HELP;
5097                                 goto err;
5098                         };
5099                         break;
5100                 case 'T':
5101                         if (optarg[0] == '+') {
5102                                 param.fp_mdt_count_sign = -1;
5103                                 optarg++;
5104                         } else if (optarg[0] == '-') {
5105                                 param.fp_mdt_count_sign =  1;
5106                                 optarg++;
5107                         }
5108
5109                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
5110                         if (*endptr != '\0') {
5111                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
5112                                         optarg);
5113                                 ret = -1;
5114                                 goto err;
5115                         }
5116                         param.fp_check_mdt_count = 1;
5117                         param.fp_exclude_mdt_count = !!neg_opt;
5118                         break;
5119                 case 'z':
5120                         if (optarg[0] == '+') {
5121                                 param.fp_ext_size_sign = -1;
5122                                 optarg++;
5123                         } else if (optarg[0] == '-') {
5124                                 param.fp_ext_size_sign =  1;
5125                                 optarg++;
5126                         }
5127
5128                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
5129                                                &param.fp_ext_size_units, 0);
5130                         if (ret) {
5131                                 fprintf(stderr, "error: bad ext-size '%s'\n",
5132                                         optarg);
5133                                 goto err;
5134                         }
5135                         param.fp_ext_size /= SEL_UNIT_SIZE;
5136                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
5137                         param.fp_check_ext_size = 1;
5138                         param.fp_exclude_ext_size = !!neg_opt;
5139                         break;
5140                 default:
5141                         ret = CMD_HELP;
5142                         goto err;
5143                 };
5144         }
5145
5146         if (pathstart == -1) {
5147                 fprintf(stderr, "error: %s: no filename|pathname\n",
5148                         argv[0]);
5149                 ret = CMD_HELP;
5150                 goto err;
5151         } else if (pathend == -1) {
5152                 /* no options */
5153                 pathend = argc;
5154         }
5155
5156         do {
5157                 rc = llapi_find(argv[pathstart], &param);
5158                 if (rc && !ret) {
5159                         ret = rc;
5160                         pathbad = pathstart;
5161                 }
5162         } while (++pathstart < pathend);
5163
5164         if (ret)
5165                 fprintf(stderr, "%s: failed for '%s': %s\n",
5166                         progname, argv[pathbad], strerror(-rc));
5167
5168 err:
5169         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
5170                 free(param.fp_obd_uuid);
5171
5172         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
5173                 free(param.fp_mdt_uuid);
5174
5175         return ret;
5176 }
5177
5178 static int lfs_getstripe_internal(int argc, char **argv,
5179                                   struct find_param *param)
5180 {
5181         struct option long_opts[] = {
5182 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
5183 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
5184 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
5185 /* find { .val = 'B',   .name = "Btime",        .has_arg = required_argument }*/
5186         { .val = LFS_COMP_COUNT_OPT,
5187                         .name = "comp-count",   .has_arg = no_argument },
5188         { .val = LFS_COMP_COUNT_OPT,
5189                 .name = "component-count",      .has_arg = no_argument },
5190         { .val = LFS_COMP_FLAGS_OPT,
5191                         .name = "comp-flags",   .has_arg = optional_argument },
5192         { .val = LFS_COMP_FLAGS_OPT,
5193                 .name = "component-flags",      .has_arg = optional_argument },
5194         { .val = LFS_COMP_START_OPT,
5195                         .name = "comp-start",   .has_arg = optional_argument },
5196         { .val = LFS_COMP_START_OPT,
5197                 .name = "component-start",      .has_arg = optional_argument },
5198         { .val = LFS_MIRROR_INDEX_OPT,
5199                 .name = "mirror-index",         .has_arg = required_argument },
5200         { .val = LFS_MIRROR_ID_OPT,
5201                 .name = "mirror-id",            .has_arg = required_argument },
5202         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
5203         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
5204 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
5205         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
5206         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5207         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
5208         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
5209         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
5210         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
5211 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
5212 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
5213         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
5214         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
5215         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
5216         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
5217 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5218         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
5219         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
5220         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5221         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
5222 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
5223 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
5224         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
5225         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5226         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5227         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
5228 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
5229         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
5230         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5231         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
5232         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
5233         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
5234 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
5235 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
5236 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
5237 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
5238         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5239         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5240         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
5241         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
5242         { .name = NULL } };
5243         int c, rc;
5244         int neg_opt = 0;
5245         int pathstart = -1, pathend = -1;
5246         int isoption;
5247         char *end, *tmp;
5248
5249         while ((c = getopt_long(argc, argv,
5250                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5251                         long_opts, NULL)) != -1) {
5252                 if (neg_opt)
5253                         --neg_opt;
5254
5255                 /* '!' is part of option */
5256                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5257                 if (!isoption && pathend != -1) {
5258                         fprintf(stderr,
5259                                 "error: %s: filename|dirname must either precede options or follow options\n",
5260                                 argv[0]);
5261                         return CMD_HELP;
5262                 }
5263                 if (!isoption && pathstart == -1)
5264                         pathstart = optind - 1;
5265                 if (isoption && pathstart != -1 && pathend == -1)
5266                         pathend = optind - 2;
5267
5268                 switch (c) {
5269                 case 1:
5270                         /* unknown: opt is "!" */
5271                         if (strcmp(optarg, "!") == 0)
5272                                 neg_opt = 2;
5273                         break;
5274                 case 'c':
5275                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5276                                 param->fp_verbose |= VERBOSE_COUNT;
5277                                 param->fp_max_depth = 0;
5278                         }
5279                         break;
5280                 case LFS_COMP_COUNT_OPT:
5281                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5282                         param->fp_max_depth = 0;
5283                         break;
5284                 case LFS_COMP_FLAGS_OPT:
5285                         if (optarg) {
5286                                 rc = comp_str2flags(optarg,
5287                                                     &param->fp_comp_flags,
5288                                                     &param->fp_comp_neg_flags);
5289                                 if (rc != 0) {
5290                                         fprintf(stderr,
5291                                                 "error: %s bad component flags '%s'.\n",
5292                                                 argv[0], optarg);
5293                                         return CMD_HELP;
5294                                 }
5295                                 param->fp_check_comp_flags = 1;
5296                         } else {
5297                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5298                                 param->fp_max_depth = 0;
5299                         }
5300                         break;
5301                 case LFS_COMP_START_OPT:
5302                         if (optarg) {
5303                                 tmp = optarg;
5304                                 if (tmp[0] == '+') {
5305                                         param->fp_comp_start_sign = -1;
5306                                         tmp++;
5307                                 } else if (tmp[0] == '-') {
5308                                         param->fp_comp_start_sign = 1;
5309                                         tmp++;
5310                                 }
5311                                 rc = llapi_parse_size(tmp,
5312                                                 &param->fp_comp_start,
5313                                                 &param->fp_comp_start_units, 0);
5314                                 if (rc != 0) {
5315                                         fprintf(stderr,
5316                                                 "error: %s bad component start '%s'.\n",
5317                                                 argv[0], tmp);
5318                                         return CMD_HELP;
5319                                 }
5320                                 param->fp_check_comp_start = 1;
5321                         } else {
5322                                 param->fp_verbose |= VERBOSE_COMP_START;
5323                                 param->fp_max_depth = 0;
5324                         }
5325                         break;
5326                 case LFS_MIRROR_INDEX_OPT:
5327                         if (optarg[0] == '+') {
5328                                 param->fp_mirror_index_sign = -1;
5329                                 optarg++;
5330                         } else if (optarg[0] == '-') {
5331                                 param->fp_mirror_index_sign = 1;
5332                                 optarg++;
5333                         }
5334
5335                         param->fp_mirror_index = strtoul(optarg, &end, 0);
5336                         if (*end != '\0' || (param->fp_mirror_index == 0 &&
5337                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5338                                 fprintf(stderr,
5339                                         "%s %s: invalid mirror index '%s'\n",
5340                                         progname, argv[0], optarg);
5341                                 return CMD_HELP;
5342                         }
5343                         if (param->fp_mirror_id != 0) {
5344                                 fprintf(stderr,
5345                                         "%s %s: can't specify both mirror index and mirror ID\n",
5346                                         progname, argv[0]);
5347                                 return CMD_HELP;
5348                         }
5349                         param->fp_check_mirror_index = 1;
5350                         param->fp_exclude_mirror_index = !!neg_opt;
5351                         break;
5352                 case LFS_MIRROR_ID_OPT:
5353                         if (optarg[0] == '+') {
5354                                 param->fp_mirror_id_sign = -1;
5355                                 optarg++;
5356                         } else if (optarg[0] == '-') {
5357                                 param->fp_mirror_id_sign = 1;
5358                                 optarg++;
5359                         }
5360
5361                         param->fp_mirror_id = strtoul(optarg, &end, 0);
5362                         if (*end != '\0' || (param->fp_mirror_id == 0 &&
5363                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
5364                                 fprintf(stderr,
5365                                         "%s %s: invalid mirror ID '%s'\n",
5366                                         progname, argv[0], optarg);
5367                                 return CMD_HELP;
5368                         }
5369                         if (param->fp_mirror_index != 0) {
5370                                 fprintf(stderr,
5371                                         "%s %s: can't specify both mirror index and mirror ID\n",
5372                                         progname, argv[0]);
5373                                 return CMD_HELP;
5374                         }
5375                         param->fp_check_mirror_id = 1;
5376                         param->fp_exclude_mirror_id = !!neg_opt;
5377                         break;
5378                 case 'd':
5379                         param->fp_max_depth = 0;
5380                         break;
5381                 case 'D':
5382                         param->fp_get_default_lmv = 1;
5383                         break;
5384                 case 'E':
5385                         if (optarg) {
5386                                 tmp = optarg;
5387                                 if (tmp[0] == '+') {
5388                                         param->fp_comp_end_sign = -1;
5389                                         tmp++;
5390                                 } else if (tmp[0] == '-') {
5391                                         param->fp_comp_end_sign = 1;
5392                                         tmp++;
5393                                 }
5394
5395                                 if (arg_is_eof(tmp)) {
5396                                         param->fp_comp_end = LUSTRE_EOF;
5397                                         param->fp_comp_end_units = 1;
5398                                         rc = 0;
5399                                 } else {
5400                                         rc = llapi_parse_size(tmp,
5401                                                 &param->fp_comp_end,
5402                                                 &param->fp_comp_end_units, 0);
5403                                 }
5404                                 if (rc != 0) {
5405                                         fprintf(stderr,
5406                                                 "error: %s bad component end '%s'.\n",
5407                                                 argv[0], tmp);
5408                                         return CMD_HELP;
5409                                 }
5410                                 param->fp_check_comp_end = 1;
5411                         } else {
5412                                 param->fp_verbose |= VERBOSE_COMP_END;
5413                                 param->fp_max_depth = 0;
5414                         }
5415                         break;
5416                 case 'F':
5417                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5418                                 param->fp_verbose |= VERBOSE_DFID;
5419                                 param->fp_max_depth = 0;
5420                         }
5421                         break;
5422                 case 'g':
5423                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5424                                 param->fp_verbose |= VERBOSE_GENERATION;
5425                                 param->fp_max_depth = 0;
5426                         }
5427                         break;
5428                 case 'i':
5429                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5430                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
5431                                 param->fp_max_depth = 0;
5432                         }
5433                         break;
5434                 case 'I':
5435                         if (optarg) {
5436                                 param->fp_comp_id = strtoul(optarg, &end, 0);
5437                                 if (*end != '\0' || param->fp_comp_id == 0 ||
5438                                     param->fp_comp_id > LCME_ID_MAX) {
5439                                         fprintf(stderr,
5440                                                 "error: %s bad component id '%s'\n",
5441                                                 argv[0], optarg);
5442                                         return CMD_HELP;
5443                                 }
5444                                 param->fp_check_comp_id = 1;
5445                         } else {
5446                                 param->fp_max_depth = 0;
5447                                 param->fp_verbose |= VERBOSE_COMP_ID;
5448                         }
5449                         break;
5450                 case 'L':
5451                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5452                                 param->fp_verbose |= VERBOSE_PATTERN;
5453                                 param->fp_max_depth = 0;
5454                         }
5455                         break;
5456 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5457                 case 'M':
5458                         fprintf(stderr,
5459                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
5460 #endif
5461                 case 'm':
5462                         if (!(param->fp_verbose & VERBOSE_DETAIL))
5463                                 param->fp_max_depth = 0;
5464                         param->fp_verbose |= VERBOSE_MDTINDEX;
5465                         break;
5466                 case 'N':
5467                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5468                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
5469                                 param->fp_max_depth = 0;
5470                         }
5471                         break;
5472                 case 'O':
5473                         if (param->fp_obd_uuid) {
5474                                 fprintf(stderr,
5475                                         "error: %s: only one obduuid allowed",
5476                                         argv[0]);
5477                                 return CMD_HELP;
5478                         }
5479                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
5480                         break;
5481                 case 'p':
5482                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5483                                 param->fp_verbose |= VERBOSE_POOL;
5484                                 param->fp_max_depth = 0;
5485                         }
5486                         break;
5487                 case 'q':
5488                         param->fp_quiet++;
5489                         break;
5490                 case 'r':
5491                         param->fp_recursive = 1;
5492                         break;
5493                 case 'R':
5494                         param->fp_raw = 1;
5495                         break;
5496                 case 'S':
5497                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5498                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
5499                                 param->fp_max_depth = 0;
5500                         }
5501                         break;
5502                 case 'v':
5503                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
5504                         break;
5505                 case 'y':
5506                         param->fp_yaml = 1;
5507                         break;
5508                 case 'z':
5509                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5510                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
5511                                 param->fp_max_depth = 0;
5512                         }
5513                         break;
5514                 default:
5515                         return CMD_HELP;
5516                 }
5517         }
5518
5519         if (pathstart == -1) {
5520                 fprintf(stderr, "error: %s: no filename|pathname\n",
5521                                 argv[0]);
5522                 return CMD_HELP;
5523         } else if (pathend == -1) {
5524                 /* no options */
5525                 pathend = argc;
5526         }
5527
5528         if (pathend > argc)
5529                 return CMD_HELP;
5530
5531         if (param->fp_recursive)
5532                 param->fp_max_depth = -1;
5533         else if (param->fp_verbose & VERBOSE_DETAIL)
5534                 param->fp_max_depth = 1;
5535
5536         if (!param->fp_verbose)
5537                 param->fp_verbose = VERBOSE_DEFAULT;
5538         if (param->fp_quiet)
5539                 param->fp_verbose = VERBOSE_OBJID;
5540
5541         do {
5542                 rc = llapi_getstripe(argv[pathstart], param);
5543         } while (++pathstart < pathend && !rc);
5544
5545         if (rc)
5546                 fprintf(stderr, "error: %s failed for %s.\n",
5547                         argv[0], argv[optind - 1]);
5548         return rc;
5549 }
5550
5551 static int lfs_tgts(int argc, char **argv)
5552 {
5553         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5554         struct find_param param;
5555         int index = 0, rc = 0;
5556
5557         if (argc > 2)
5558                 return CMD_HELP;
5559
5560         if (argc == 2 && !realpath(argv[1], path)) {
5561                 rc = -errno;
5562                 fprintf(stderr, "error: invalid path '%s': %s\n",
5563                         argv[1], strerror(-rc));
5564                 return rc;
5565         }
5566
5567         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
5568                 /* Check if we have a mount point */
5569                 if (mntdir[0] == '\0')
5570                         continue;
5571
5572                 memset(&param, 0, sizeof(param));
5573                 if (!strcmp(argv[0], "mdts"))
5574                         param.fp_get_lmv = 1;
5575
5576                 rc = llapi_ostlist(mntdir, &param);
5577                 if (rc) {
5578                         fprintf(stderr, "error: %s: failed on %s\n",
5579                                 argv[0], mntdir);
5580                 }
5581                 if (path[0] != '\0')
5582                         break;
5583                 memset(mntdir, 0, PATH_MAX);
5584         }
5585
5586         return rc;
5587 }
5588
5589 static int lfs_getstripe(int argc, char **argv)
5590 {
5591         struct find_param param = { 0 };
5592
5593         param.fp_max_depth = 1;
5594         return lfs_getstripe_internal(argc, argv, &param);
5595 }
5596
5597 /* functions */
5598 static int lfs_getdirstripe(int argc, char **argv)
5599 {
5600         struct find_param param = { 0 };
5601         struct option long_opts[] = {
5602         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
5603         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5604         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
5605         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
5606         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5607         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5608         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5609         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
5610         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5611         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5612         { .name = NULL } };
5613         int c, rc;
5614
5615         param.fp_get_lmv = 1;
5616
5617         while ((c = getopt_long(argc, argv,
5618                                 "cDHimO:rtTvy", long_opts, NULL)) != -1) {
5619                 switch (c) {
5620                 case 'c':
5621                 case 'T':
5622                         param.fp_verbose |= VERBOSE_COUNT;
5623                         break;
5624                 case 'D':
5625                         param.fp_get_default_lmv = 1;
5626                         break;
5627                 case 'i':
5628                 case 'm':
5629                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
5630                         break;
5631 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5632                 case 't':
5633                         fprintf(stderr,
5634                                 "warning: '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
5635 #endif
5636                 case 'H':
5637                         param.fp_verbose |= VERBOSE_HASH_TYPE;
5638                         break;
5639                 case 'O':
5640                         if (param.fp_obd_uuid) {
5641                                 fprintf(stderr,
5642                                         "error: %s: only one obduuid allowed",
5643                                         argv[0]);
5644                                 return CMD_HELP;
5645                         }
5646                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
5647                         break;
5648                 case 'r':
5649                         param.fp_recursive = 1;
5650                         break;
5651                 case 'v':
5652                         param.fp_verbose |= VERBOSE_DETAIL;
5653                         break;
5654                 case 'y':
5655                         param.fp_yaml = 1;
5656                         break;
5657                 default:
5658                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5659                                 progname, argv[0], argv[optind - 1]);
5660                         return CMD_HELP;
5661                 }
5662         }
5663
5664         if (optind >= argc)
5665                 return CMD_HELP;
5666
5667         if (param.fp_recursive)
5668                 param.fp_max_depth = -1;
5669
5670         if (!param.fp_verbose)
5671                 param.fp_verbose = VERBOSE_DEFAULT;
5672
5673         do {
5674                 rc = llapi_getstripe(argv[optind], &param);
5675         } while (++optind < argc && !rc);
5676
5677         if (rc)
5678                 fprintf(stderr, "error: %s failed for %s.\n",
5679                         argv[0], argv[optind - 1]);
5680         return rc;
5681 }
5682
5683 enum mntdf_flags {
5684         MNTDF_INODES    = 0x0001,
5685         MNTDF_COOKED    = 0x0002,
5686         MNTDF_LAZY      = 0x0004,
5687         MNTDF_VERBOSE   = 0x0008,
5688         MNTDF_SHOW      = 0x0010,
5689 };
5690
5691 #define COOK(value)                                             \
5692 ({                                                              \
5693         int radix = 0;                                          \
5694         while (value > 1024) {                                  \
5695                 value /= 1024;                                  \
5696                 radix++;                                        \
5697         }                                                       \
5698         radix;                                                  \
5699 })
5700 #define UUF     "%-20s"
5701 #define CSF     "%11s"
5702 #define CDF     "%11llu"
5703 #define HDF     "%8.1f%c"
5704 #define RSF     "%4s"
5705 #define RDF     "%3d%%"
5706
5707 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
5708 {
5709         double avail, used, ratio = 0;
5710
5711         if (inodes) {
5712                 avail = st->os_ffree;
5713                 used = st->os_files - st->os_ffree;
5714         } else {
5715                 avail = st->os_bavail;
5716                 used = st->os_blocks - st->os_bfree;
5717         }
5718         if (avail + used > 0)
5719                 ratio = used / (used + avail) * 100;
5720
5721         /* Round up to match df(1) usage percentage */
5722         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
5723 }
5724
5725 /*
5726  * This is to identify various problem states for "lfs df" if .osn_err = true,
5727  * so only show flags reflecting those states by default. Informational states
5728  * are only shown with "-v" and use lower-case names to distinguish them.
5729  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
5730  */
5731 static struct obd_statfs_state_names {
5732         enum obd_statfs_state   osn_state;
5733         const char              osn_name;
5734         bool                    osn_err;
5735 } oss_names[] = {
5736         { .osn_state = OS_STATFS_DEGRADED,   .osn_name = 'D', .osn_err = true },
5737         { .osn_state = OS_STATFS_READONLY,   .osn_name = 'R', .osn_err = true },
5738         { .osn_state = OS_STATFS_NOPRECREATE,.osn_name = 'N', .osn_err = true },
5739         { .osn_state = OS_STATFS_UNUSED1,    .osn_name = '?', .osn_err = true },
5740         { .osn_state = OS_STATFS_UNUSED2,    .osn_name = '?', .osn_err = true },
5741         { .osn_state = OS_STATFS_ENOSPC,     .osn_name = 'S', .osn_err = true },
5742         { .osn_state = OS_STATFS_ENOINO,     .osn_name = 'I', .osn_err = true },
5743         { .osn_state = OS_STATFS_SUM,        .osn_name = 'a', /* aggregate */ },
5744         { .osn_state = OS_STATFS_NONROT,     .osn_name = 'f', /* flash */     },
5745 };
5746
5747 static int showdf(char *mntdir, struct obd_statfs *stat,
5748                   char *uuid, enum mntdf_flags flags,
5749                   char *type, int index, int rc)
5750 {
5751         long long avail, used, total;
5752         int ratio = 0;
5753         char *suffix = "KMGTPEZY";
5754         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
5755         char tbuf[3 * sizeof(__u64)];
5756         char ubuf[3 * sizeof(__u64)];
5757         char abuf[3 * sizeof(__u64)];
5758         char rbuf[3 * sizeof(__u64)];
5759
5760         if (!uuid || !stat)
5761                 return -EINVAL;
5762
5763         switch (rc) {
5764         case 0:
5765                 if (flags & MNTDF_INODES) {
5766                         avail = stat->os_ffree;
5767                         used = stat->os_files - stat->os_ffree;
5768                         total = stat->os_files;
5769                 } else {
5770                         int shift = flags & MNTDF_COOKED ? 0 : 10;
5771
5772                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
5773                         used  = ((stat->os_blocks - stat->os_bfree) *
5774                                  stat->os_bsize) >> shift;
5775                         total = (stat->os_blocks * stat->os_bsize) >> shift;
5776                 }
5777
5778                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
5779
5780                 if (flags & MNTDF_COOKED) {
5781                         int i;
5782                         double cook_val;
5783
5784                         cook_val = (double)total;
5785                         i = COOK(cook_val);
5786                         if (i > 0)
5787                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
5788                                          suffix[i - 1]);
5789                         else
5790                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
5791
5792                         cook_val = (double)used;
5793                         i = COOK(cook_val);
5794                         if (i > 0)
5795                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
5796                                          suffix[i - 1]);
5797                         else
5798                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
5799
5800                         cook_val = (double)avail;
5801                         i = COOK(cook_val);
5802                         if (i > 0)
5803                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
5804                                          suffix[i - 1]);
5805                         else
5806                                 snprintf(abuf, sizeof(abuf), CDF, avail);
5807                 } else {
5808                         snprintf(tbuf, sizeof(tbuf), CDF, total);
5809                         snprintf(ubuf, sizeof(tbuf), CDF, used);
5810                         snprintf(abuf, sizeof(tbuf), CDF, avail);
5811                 }
5812
5813                 sprintf(rbuf, RDF, ratio);
5814                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
5815                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
5816                 if (type)
5817                         printf("[%s:%d]", type, index);
5818
5819                 if (stat->os_state) {
5820                         uint32_t i;
5821
5822                         printf(" ");
5823                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
5824                                 if (oss_names[i].osn_state & stat->os_state &&
5825                                     (oss_names[i].osn_err ||
5826                                      flags & MNTDF_VERBOSE))
5827                                         printf("%c", oss_names[i].osn_name);
5828                         }
5829                 }
5830
5831                 printf("\n");
5832                 break;
5833         case -ENODATA:
5834                 printf(UUF": inactive device\n", uuid);
5835                 break;
5836         default:
5837                 printf(UUF": %s\n", uuid, strerror(-rc));
5838                 break;
5839         }
5840
5841         return 0;
5842 }
5843
5844 struct ll_stat_type {
5845         int   st_op;
5846         char *st_name;
5847 };
5848
5849 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
5850
5851 struct ll_statfs_data {
5852         int                     sd_index;
5853         struct obd_statfs       sd_st;
5854 };
5855
5856 struct ll_statfs_buf {
5857         int                     sb_count;
5858         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
5859 };
5860
5861 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
5862                  int ops, struct ll_statfs_buf *lsb)
5863 {
5864         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
5865         struct obd_uuid uuid_buf;
5866         char *poolname = NULL;
5867         struct ll_stat_type types[] = {
5868                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
5869                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
5870                 { .st_name = NULL } };
5871         struct ll_stat_type *tp;
5872         __u64 ost_files = 0;
5873         __u64 ost_ffree = 0;
5874         __u32 index;
5875         __u32 type;
5876         int fd;
5877         int rc = 0;
5878         int rc2;
5879
5880         if (pool) {
5881                 poolname = strchr(pool, '.');
5882                 if (poolname) {
5883                         if (strncmp(fsname, pool, strlen(fsname))) {
5884                                 fprintf(stderr, "filesystem name incorrect\n");
5885                                 return -ENODEV;
5886                         }
5887                         poolname++;
5888                 } else
5889                         poolname = pool;
5890         }
5891
5892         fd = open(mntdir, O_RDONLY);
5893         if (fd < 0) {
5894                 rc = -errno;
5895                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
5896                         strerror(errno));
5897                 return rc;
5898         }
5899
5900         if (flags & MNTDF_SHOW) {
5901                 if (flags & MNTDF_INODES)
5902                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5903                                "UUID", "Inodes", "IUsed", "IFree",
5904                                "IUse%", "Mounted on");
5905                 else
5906                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5907                                "UUID",
5908                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
5909                                "Used", "Available", "Use%", "Mounted on");
5910         }
5911
5912         for (tp = types; tp->st_name != NULL; tp++) {
5913                 bool have_ost = false;
5914
5915                 if (!(tp->st_op & ops))
5916                         continue;
5917
5918                 for (index = 0; ; index++) {
5919                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
5920                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
5921                         type = flags & MNTDF_LAZY ?
5922                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
5923                         rc2 = llapi_obd_fstatfs(fd, type, index,
5924                                                &stat_buf, &uuid_buf);
5925                         if (rc2 == -ENODEV)
5926                                 break;
5927                         if (rc2 == -EAGAIN)
5928                                 continue;
5929                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
5930                                 if (!(flags & MNTDF_VERBOSE))
5931                                         continue;
5932                         } else if (rc2 < 0 && rc == 0) {
5933                                 rc = rc2;
5934                         }
5935
5936                         /*
5937                          * If we have OSTs then don't report MDT block counts.
5938                          * For MDT-only filesystems the expectation is that all
5939                          * layouts have a DoM component.  For filesystems with
5940                          * OSTs, files are not necessarily going to store data
5941                          * on MDTs, and MDT space is limited to a fraction of
5942                          * OST space, so don't include it in the summary.
5943                          */
5944                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
5945                                 have_ost = true;
5946                                 sum.os_blocks = 0;
5947                                 sum.os_bfree = 0;
5948                                 sum.os_bavail = 0;
5949                         }
5950
5951                         if (poolname && tp->st_op == LL_STATFS_LOV &&
5952                             llapi_search_ost(fsname, poolname,
5953                                              obd_uuid2str(&uuid_buf)) != 1)
5954                                 continue;
5955
5956                         /*
5957                          * the llapi_obd_fstatfs() call may have returned with
5958                          * an error, but if it filled in uuid_buf we will at
5959                          * lease use that to print out a message for that OBD.
5960                          * If we didn't get anything in the uuid_buf, then fill
5961                          * it in so that we can print an error message.
5962                          */
5963                         if (uuid_buf.uuid[0] == '\0')
5964                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
5965                                          "%s%04x", tp->st_name, index);
5966                         if (!rc && lsb) {
5967                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
5968                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
5969                                 lsb->sb_count++;
5970                         }
5971                         if (flags & MNTDF_SHOW)
5972                                 showdf(mntdir, &stat_buf,
5973                                        obd_uuid2str(&uuid_buf), flags,
5974                                        tp->st_name, index, rc2);
5975
5976                         if (rc2)
5977                                 continue;
5978
5979                         if (tp->st_op == LL_STATFS_LMV) {
5980                                 sum.os_ffree += stat_buf.os_ffree;
5981                                 sum.os_files += stat_buf.os_files;
5982                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
5983                                 ost_files += stat_buf.os_files;
5984                                 ost_ffree += stat_buf.os_ffree;
5985                         }
5986                         sum.os_blocks += stat_buf.os_blocks *
5987                                          stat_buf.os_bsize;
5988                         sum.os_bfree  += stat_buf.os_bfree *
5989                                          stat_buf.os_bsize;
5990                         sum.os_bavail += stat_buf.os_bavail *
5991                                          stat_buf.os_bsize;
5992                 }
5993         }
5994
5995         close(fd);
5996
5997         /*
5998          * If we have _some_ OSTs, but don't have as many free objects on the
5999          * OST as inodes on the MDTs, reduce the reported number of inodes
6000          * to compensate, so that the "inodes in use" number is correct.
6001          * This should be kept in sync with ll_statfs_internal().
6002          */
6003         if (ost_files && ost_ffree < sum.os_ffree) {
6004                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
6005                 sum.os_ffree = ost_ffree;
6006         }
6007         if (flags & MNTDF_SHOW) {
6008                 printf("\n");
6009                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
6010                 printf("\n");
6011         }
6012
6013         return rc;
6014 }
6015
6016 /* functions */
6017 static int lfs_setdirstripe(int argc, char **argv)
6018 {
6019         char *dname;
6020         struct lfs_setstripe_args lsa = { 0 };
6021         struct llapi_stripe_param *param = NULL;
6022         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
6023         char *end;
6024         int c;
6025         char *mode_opt = NULL;
6026         bool default_stripe = false;
6027         bool delete = false;
6028         bool foreign_mode = false;
6029         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
6030         mode_t previous_mode = 0;
6031         char *xattr = NULL;
6032         __u32 type = LU_FOREIGN_TYPE_DAOS, flags = 0;
6033         struct option long_opts[] = {
6034         { .val = 'c',   .name = "count",        .has_arg = required_argument },
6035         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
6036         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
6037         { .val = 'D',   .name = "default",      .has_arg = no_argument },
6038         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
6039         { .val = LFS_LAYOUT_FLAGS_OPT,
6040                         .name = "flags",        .has_arg = required_argument },
6041         { .val = LFS_LAYOUT_FOREIGN_OPT,
6042                         .name = "foreign",      .has_arg = optional_argument},
6043         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
6044 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
6045         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
6046         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
6047 #else
6048 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
6049         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6050         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6051 #endif
6052 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6053         { .val = 'i',   .name = "index",        .has_arg = required_argument },
6054 #endif
6055         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
6056 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6057         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
6058 #endif
6059         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
6060 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
6061         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
6062         { .name = NULL } };
6063         int result = 0;
6064
6065         setstripe_args_init(&lsa);
6066
6067         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:x:",
6068                                 long_opts, NULL)) >= 0) {
6069                 switch (c) {
6070                 case 0:
6071                         /* Long options. */
6072                         break;
6073                 case 'c':
6074                 case 'T':
6075                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
6076                         if (*end != '\0') {
6077                                 fprintf(stderr,
6078                                         "%s %s: invalid stripe count '%s'\n",
6079                                         progname, argv[0], optarg);
6080                                 return CMD_HELP;
6081                         }
6082                         break;
6083                 case 'd':
6084                         delete = true;
6085                         default_stripe = true;
6086                         break;
6087                 case 'D':
6088                         default_stripe = true;
6089                         break;
6090                 case LFS_LAYOUT_FOREIGN_OPT:
6091                         if (optarg) {
6092                                 /* check pure numeric */
6093                                 type = strtoul(optarg, &end, 0);
6094                                 if (*end) {
6095                                         /* check name */
6096                                         type = check_foreign_type_name(optarg);
6097                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
6098                                                 fprintf(stderr,
6099                                                         "%s %s: unknown foreign type '%s'\n",
6100                                                         progname, argv[0],
6101                                                         optarg);
6102                                                 return CMD_HELP;
6103                                         }
6104                                 }
6105                         }
6106                         foreign_mode = true;
6107                         break;
6108                 case LFS_LAYOUT_FLAGS_OPT:
6109                         flags = strtoul(optarg, &end, 16);
6110                         if (*end != '\0') {
6111                                 fprintf(stderr,
6112                                         "%s %s: bad flags '%s'\n",
6113                                         progname, argv[0], optarg);
6114                                 return CMD_HELP;
6115                         }
6116                         break;
6117 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6118                 case 't':
6119                         fprintf(stderr,
6120                                 "warning: '--hash-type' and '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6121 #endif
6122                 case 'H':
6123                         lsa.lsa_pattern = check_hashtype(optarg);
6124                         if (lsa.lsa_pattern == 0) {
6125                                 fprintf(stderr,
6126                                         "%s %s: bad stripe hash type '%s'\n",
6127                                         progname, argv[0], optarg);
6128                                 return CMD_HELP;
6129                         }
6130                         break;
6131                 case 'i':
6132 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
6133                 case 'm':
6134 #endif
6135 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6136                         if (strcmp(argv[optind - 1], "--index") == 0)
6137                                 fprintf(stderr,
6138                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
6139                                         progname, argv[0]);
6140 #endif
6141                         lsa.lsa_nr_tgts = parse_targets(mdts,
6142                                                 sizeof(mdts) / sizeof(__u32),
6143                                                 lsa.lsa_nr_tgts, optarg, NULL);
6144                         if (lsa.lsa_nr_tgts < 0) {
6145                                 fprintf(stderr,
6146                                         "%s %s: invalid MDT target(s) '%s'\n",
6147                                         progname, argv[0], optarg);
6148                                 return CMD_HELP;
6149                         }
6150
6151                         lsa.lsa_tgts = mdts;
6152                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6153                                 lsa.lsa_stripe_off = mdts[0];
6154                         break;
6155 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
6156                 case 'm':
6157                         fprintf(stderr,
6158                                 "warning: '-m' is deprecated, use '--mode' or '-o' instead\n");
6159 #endif
6160                 case 'o':
6161                         mode_opt = optarg;
6162                         break;
6163                 case 'x':
6164                         xattr = optarg;
6165                         break;
6166                 default:
6167                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
6168                                 progname, argv[0], argv[optind - 1]);
6169                         return CMD_HELP;
6170                 }
6171         }
6172
6173         if (optind == argc) {
6174                 fprintf(stderr, "%s %s: DIR must be specified\n",
6175                         progname, argv[0]);
6176                 return CMD_HELP;
6177         }
6178
6179         if (xattr && !foreign_mode) {
6180                 /*
6181                  * only print a warning as this is armless and will be
6182                  * ignored
6183                  */
6184                 fprintf(stderr,
6185                         "%s %s: xattr has been specified for non-foreign layout\n",
6186                         progname, argv[0]);
6187         } else if (foreign_mode && !xattr) {
6188                 fprintf(stderr,
6189                         "%s %s: xattr must be provided in foreign mode\n",
6190                         progname, argv[0]);
6191                 return CMD_HELP;
6192         }
6193
6194         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
6195             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
6196                 fprintf(stderr,
6197                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
6198                         progname, argv[0]);
6199                 return CMD_HELP;
6200         }
6201
6202         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
6203             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
6204                 fprintf(stderr,
6205                         "%s %s: stripe offset and count must be specified\n",
6206                         progname, argv[0]);
6207                 return CMD_HELP;
6208         }
6209
6210         if (delete &&
6211             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
6212              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
6213                 fprintf(stderr,
6214                         "%s %s: cannot specify -d with -c or -i options\n",
6215                         progname, argv[0]);
6216                 return CMD_HELP;
6217         }
6218
6219         if (mode_opt) {
6220                 mode = strtoul(mode_opt, &end, 8);
6221                 if (*end != '\0') {
6222                         fprintf(stderr,
6223                                 "%s %s: bad MODE '%s'\n",
6224                                 progname, argv[0], mode_opt);
6225                         return CMD_HELP;
6226                 }
6227                 previous_mode = umask(0);
6228         }
6229
6230         /* foreign LMV/dir case */
6231         if (foreign_mode) {
6232                 if (argc > optind + 1) {
6233                         fprintf(stderr,
6234                                 "%s %s: cannot specify multiple foreign dirs\n",
6235                                 progname, argv[0]);
6236                         return CMD_HELP;
6237                 }
6238
6239                 dname = argv[optind];
6240                 result = llapi_dir_create_foreign(dname, mode, type, flags,
6241                                                   xattr);
6242                 if (result != 0)
6243                         fprintf(stderr,
6244                                 "%s mkdir: can't create foreign dir '%s': %s\n",
6245                                 progname, dname, strerror(-result));
6246                 return result;
6247         }
6248
6249         /*
6250          * initialize stripe parameters, in case param is converted to specific,
6251          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
6252          */
6253         param = calloc(1, offsetof(typeof(*param),
6254                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
6255                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
6256         if (!param) {
6257                 fprintf(stderr,
6258                         "%s %s: cannot allocate memory for parameters: %s\n",
6259                         progname, argv[0], strerror(ENOMEM));
6260                 return CMD_HELP;
6261         }
6262
6263         /* if "lfs setdirstripe -D -i -1" is used, assume 1-stripe directory */
6264         if (default_stripe && lsa.lsa_stripe_off == -1 &&
6265             (lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT ||
6266              lsa.lsa_stripe_count == 0))
6267                 lsa.lsa_stripe_count = 1;
6268         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
6269                 param->lsp_stripe_count = lsa.lsa_stripe_count;
6270         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6271                 param->lsp_stripe_offset = -1;
6272         else
6273                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
6274         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
6275                 param->lsp_stripe_pattern = lsa.lsa_pattern;
6276         else
6277                 param->lsp_stripe_pattern = LMV_HASH_TYPE_UNKNOWN;
6278         param->lsp_pool = lsa.lsa_pool_name;
6279         param->lsp_is_specific = false;
6280         if (lsa.lsa_nr_tgts > 1) {
6281                 if (lsa.lsa_stripe_count > 0 &&
6282                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
6283                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
6284                         fprintf(stderr,
6285                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
6286                                 argv[0], lsa.lsa_stripe_count,
6287                                 lsa.lsa_nr_tgts);
6288                         free(param);
6289                         return CMD_HELP;
6290                 }
6291
6292                 param->lsp_is_specific = true;
6293                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
6294                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
6295         }
6296
6297         dname = argv[optind];
6298         do {
6299                 if (default_stripe) {
6300                         result = llapi_dir_set_default_lmv(dname, param);
6301                         if (result)
6302                                 fprintf(stderr,
6303                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
6304                                         progname, dname, strerror(-result));
6305                         continue;
6306                 }
6307
6308                 result = llapi_dir_create(dname, mode, param);
6309                 if (result)
6310                         fprintf(stderr,
6311                                 "%s setdirstripe: cannot create dir '%s': %s\n",
6312                                 progname, dname, strerror(-result));
6313         } while (!result && (dname = argv[++optind]));
6314
6315         if (mode_opt)
6316                 umask(previous_mode);
6317
6318         free(param);
6319         return result;
6320 }
6321
6322 /* functions */
6323 static int lfs_rmentry(int argc, char **argv)
6324 {
6325         char *dname;
6326         int   index;
6327         int   result = 0;
6328
6329         if (argc <= 1) {
6330                 fprintf(stderr, "error: %s: missing dirname\n",
6331                         argv[0]);
6332                 return CMD_HELP;
6333         }
6334
6335         index = 1;
6336         dname = argv[index];
6337         while (dname) {
6338                 result = llapi_direntry_remove(dname);
6339                 if (result) {
6340                         fprintf(stderr,
6341                                 "error: %s: remove dir entry '%s' failed\n",
6342                                 argv[0], dname);
6343                         break;
6344                 }
6345                 dname = argv[++index];
6346         }
6347         return result;
6348 }
6349
6350 static int lfs_mv(int argc, char **argv)
6351 {
6352         struct lmv_user_md lmu = { LMV_USER_MAGIC };
6353         struct find_param param = {
6354                 .fp_max_depth = -1,
6355                 .fp_mdt_index = -1,
6356         };
6357         char *end;
6358         int c;
6359         int rc = 0;
6360         struct option long_opts[] = {
6361         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6362         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6363         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6364         { .name = NULL } };
6365
6366         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
6367                 switch (c) {
6368 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6369                 case 'M':
6370                         fprintf(stderr,
6371                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
6372 #endif
6373                 case 'm':
6374                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
6375                         if (*end != '\0') {
6376                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
6377                                         progname, optarg);
6378                                 return CMD_HELP;
6379                         }
6380                         break;
6381                 case 'v':
6382                         param.fp_verbose = VERBOSE_DETAIL;
6383                         break;
6384                 default:
6385                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
6386                                 progname, argv[optind - 1]);
6387                         return CMD_HELP;
6388                 }
6389         }
6390
6391         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
6392                 fprintf(stderr, "%s mv: MDT index must be specified\n",
6393                         progname);
6394                 return CMD_HELP;
6395         }
6396
6397         if (optind >= argc) {
6398                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
6399                 return CMD_HELP;
6400         }
6401
6402         lmu.lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
6403
6404         /* initialize migrate mdt parameters */
6405         param.fp_lmv_md = &lmu;
6406         param.fp_migrate = 1;
6407         rc = llapi_migrate_mdt(argv[optind], &param);
6408         if (rc != 0)
6409                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
6410                         progname, argv[optind], lmu.lum_stripe_offset,
6411                         strerror(-rc));
6412         return rc;
6413 }
6414
6415 static int lfs_osts(int argc, char **argv)
6416 {
6417         return lfs_tgts(argc, argv);
6418 }
6419
6420 static int lfs_mdts(int argc, char **argv)
6421 {
6422         return lfs_tgts(argc, argv);
6423 }
6424
6425 static int lfs_df(int argc, char **argv)
6426 {
6427         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6428         enum mntdf_flags flags = MNTDF_SHOW;
6429         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
6430         int c, rc = 0, index = 0;
6431         char fsname[PATH_MAX] = "", *pool_name = NULL;
6432         struct option long_opts[] = {
6433         { .val = 'h',   .name = "human-readable",
6434                                                 .has_arg = no_argument },
6435         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
6436         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
6437         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
6438         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6439         { .name = NULL} };
6440
6441         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
6442                 switch (c) {
6443                 case 'h':
6444                         flags |= MNTDF_COOKED;
6445                         break;
6446                 case 'i':
6447                         flags |= MNTDF_INODES;
6448                         break;
6449                 case 'l':
6450                         flags |= MNTDF_LAZY;
6451                         break;
6452                 case 'p':
6453                         pool_name = optarg;
6454                         break;
6455                 case 'v':
6456                         flags |= MNTDF_VERBOSE;
6457                         break;
6458                 default:
6459                         return CMD_HELP;
6460                 }
6461         }
6462         if (optind < argc && !realpath(argv[optind], path)) {
6463                 rc = -errno;
6464                 fprintf(stderr, "error: invalid path '%s': %s\n",
6465                         argv[optind], strerror(-rc));
6466                 return rc;
6467         }
6468
6469         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6470                 /* Check if we have a mount point */
6471                 if (mntdir[0] == '\0')
6472                         continue;
6473
6474                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
6475                 if (rc || path[0] != '\0')
6476                         break;
6477                 fsname[0] = '\0'; /* avoid matching in next loop */
6478                 mntdir[0] = '\0'; /* avoid matching in next loop */
6479         }
6480
6481         return rc;
6482 }
6483
6484 static int print_instance(const char *mntdir, char *buf, size_t buflen,
6485                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
6486 {
6487         int rc = 0;
6488
6489         if (opt_fsname == opt_instance) { /* both true or both false */
6490                 rc = llapi_getname(mntdir, buf, buflen);
6491         } else if (opt_fsname) {
6492                 /*
6493                  * llapi_search_mounts() fills @buf with fsname, but that is not
6494                  * called if explicit paths are specified on the command-line
6495                  */
6496                 if (buf[0] == '\0')
6497                         rc = llapi_get_fsname(mntdir, buf, buflen);
6498         } else /* if (opt_instance) */ {
6499                 rc = llapi_get_instance(mntdir, buf, buflen);
6500         }
6501
6502         if (rc < 0) {
6503                 fprintf(stderr, "cannot get instance for '%s': %s\n",
6504                         mntdir, strerror(-rc));
6505                 return rc;
6506         }
6507
6508         if (opt_mntdir)
6509                 printf("%s %s\n", buf, mntdir);
6510         else
6511                 printf("%s\n", buf);
6512
6513         return 0;
6514 }
6515
6516 static int lfs_getname(int argc, char **argv)
6517 {
6518         struct option long_opts[] = {
6519         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6520         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
6521         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
6522         { .name = NULL} };
6523         bool opt_instance = false, opt_fsname = false;
6524         char fsname[PATH_MAX] = "";
6525         int rc = 0, rc2, c;
6526
6527         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
6528                 switch (c) {
6529                 case 'i':
6530                         opt_instance = true;
6531                         break;
6532                 case 'n':
6533                         opt_fsname = true;
6534                         break;
6535                 case 'h':
6536                 default:
6537                         return CMD_HELP;
6538                 }
6539         }
6540
6541         if (optind == argc) { /* no paths specified, get all paths. */
6542                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
6543                 int index = 0;
6544
6545                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6546                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
6547                                              opt_instance, opt_fsname, true);
6548                         if (!rc)
6549                                 rc = rc2;
6550                         path[0] = fsname[0] = mntdir[0] = '\0';
6551                 }
6552         } else { /* paths specified, only attempt to search these. */
6553                 bool opt_mntdir;
6554
6555                 /* if only one path is given, print only requested info */
6556                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
6557
6558                 for (; optind < argc; optind++) {
6559                         rc2 = print_instance(argv[optind], fsname,
6560                                              sizeof(fsname), opt_instance,
6561                                              opt_fsname, opt_mntdir);
6562                         if (!rc)
6563                                 rc = rc2;
6564                         fsname[0] = '\0';
6565                 }
6566         }
6567
6568         return rc;
6569 }
6570
6571 static int lfs_check(int argc, char **argv)
6572 {
6573         char mntdir[PATH_MAX] = {'\0'};
6574         int num_types = 1;
6575         char *obd_types[3];
6576         char obd_type1[4];
6577         char obd_type2[4];
6578         char obd_type3[4];
6579         int rc;
6580
6581         if (argc != 2) {
6582                 fprintf(stderr, "%s check: server type must be specified\n",
6583                         progname);
6584                 return CMD_HELP;
6585         }
6586
6587         obd_types[0] = obd_type1;
6588         obd_types[1] = obd_type2;
6589         obd_types[2] = obd_type3;
6590
6591         if (strcmp(argv[1], "osts") == 0) {
6592                 strcpy(obd_types[0], "osc");
6593         } else if (strcmp(argv[1], "mdts") == 0 ||
6594                    strcmp(argv[1], "mds") == 0) {
6595                 strcpy(obd_types[0], "mdc");
6596         } else if (strcmp(argv[1], "mgts") == 0) {
6597                 strcpy(obd_types[0], "mgc");
6598         } else if (strcmp(argv[1], "all") == 0 ||
6599                    strcmp(argv[1], "servers") == 0) {
6600                 num_types = 3;
6601                 strcpy(obd_types[0], "osc");
6602                 strcpy(obd_types[1], "mdc");
6603                 strcpy(obd_types[2], "mgc");
6604         } else {
6605                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
6606                         progname, argv[1]);
6607                 return CMD_HELP;
6608         }
6609
6610         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
6611         if (rc < 0 || mntdir[0] == '\0') {
6612                 fprintf(stderr,
6613                         "%s check: cannot find mounted Lustre filesystem: %s\n",
6614                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
6615                 return rc;
6616         }
6617
6618         rc = llapi_target_check(num_types, obd_types, mntdir);
6619         if (rc)
6620                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
6621                         progname, argv[1], strerror(-rc));
6622
6623         return rc;
6624 }
6625
6626 #ifdef HAVE_SYS_QUOTA_H
6627 #define ADD_OVERFLOW(a, b) \
6628                      ((((a) + (b)) < (a)) ? \
6629                       ((a) = ULONG_MAX) : ((a) = (a) + (b)))
6630
6631 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
6632  * returns the value or ULONG_MAX on integer overflow or incorrect format
6633  * Notes:
6634  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
6635  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
6636  *        3. empty integer value is interpreted as 0
6637  */
6638 static unsigned long str2sec(const char *timestr)
6639 {
6640         const char spec[] = "smhdw";
6641         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6642         unsigned long val = 0;
6643         char *tail;
6644
6645         if (strpbrk(timestr, spec) == NULL) {
6646                 /*
6647                  * no specifiers inside the time string,
6648                  * should treat it as an integer value
6649                  */
6650                 val = strtoul(timestr, &tail, 10);
6651                 return *tail ? ULONG_MAX : val;
6652         }
6653
6654         /* format string is XXwXXdXXhXXmXXs */
6655         while (*timestr) {
6656                 unsigned long v;
6657                 int ind;
6658                 char *ptr;
6659
6660                 v = strtoul(timestr, &tail, 10);
6661                 if (v == ULONG_MAX || *tail == '\0')
6662                         /*
6663                          * value too large (ULONG_MAX or more)
6664                          * or missing specifier
6665                          */
6666                         goto error;
6667
6668                 ptr = strchr(spec, *tail);
6669                 if (!ptr)
6670                         /* unknown specifier */
6671                         goto error;
6672
6673                 ind = ptr - spec;
6674
6675                 /* check if product will overflow the type */
6676                 if (!(v < ULONG_MAX / mult[ind]))
6677                         goto error;
6678
6679                 ADD_OVERFLOW(val, mult[ind] * v);
6680                 if (val == ULONG_MAX)
6681                         goto error;
6682
6683                 timestr = tail + 1;
6684         }
6685
6686         return val;
6687
6688 error:
6689         return ULONG_MAX;
6690 }
6691
6692 #define ARG2ULL(nr, str, def_units)                                     \
6693 do {                                                                    \
6694         unsigned long long limit, units = def_units;                    \
6695         int rc;                                                         \
6696                                                                         \
6697         rc = llapi_parse_size(str, &limit, &units, 1);                  \
6698         if (rc < 0) {                                                   \
6699                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
6700                         progname, str);                                 \
6701                 return CMD_HELP;                                        \
6702         }                                                               \
6703         nr = limit;                                                     \
6704 } while (0)
6705
6706 static inline int has_times_option(int argc, char **argv)
6707 {
6708         int i;
6709
6710         for (i = 1; i < argc; i++)
6711                 if (!strcmp(argv[i], "-t"))
6712                         return 1;
6713
6714         return 0;
6715 }
6716
6717 static inline int lfs_verify_poolarg(char *pool)
6718 {
6719         if (strnlen(optarg, LOV_MAXPOOLNAME + 1) > LOV_MAXPOOLNAME) {
6720                 fprintf(stderr,
6721                         "Pool name '%.*s' is longer than %d\n",
6722                         LOV_MAXPOOLNAME, pool, LOV_MAXPOOLNAME);
6723                 return 1;
6724         }
6725         return 0;
6726 }
6727
6728 int lfs_setquota_times(int argc, char **argv, struct if_quotactl *qctl)
6729 {
6730         int c, rc;
6731         char *mnt, *obd_type = (char *)qctl->obd_type;
6732         struct obd_dqblk *dqb = &qctl->qc_dqblk;
6733         struct obd_dqinfo *dqi = &qctl->qc_dqinfo;
6734         struct option long_opts[] = {
6735         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
6736         { .val = 'g',   .name = "group",        .has_arg = no_argument },
6737         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
6738         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
6739         { .val = 't',   .name = "times",        .has_arg = no_argument },
6740         { .val = 'u',   .name = "user",         .has_arg = no_argument },
6741         { .val = 'o',   .name = "pool",         .has_arg = required_argument },
6742         { .name = NULL } };
6743         int qtype;
6744
6745         qctl->qc_cmd  = LUSTRE_Q_SETINFO;
6746         qctl->qc_type = ALLQUOTA;
6747
6748         while ((c = getopt_long(argc, argv, "b:gi:ptuo:",
6749                                 long_opts, NULL)) != -1) {
6750                 switch (c) {
6751                 case 'u':
6752                         qtype = USRQUOTA;
6753                         goto quota_type;
6754                 case 'g':
6755                         qtype = GRPQUOTA;
6756                         goto quota_type;
6757                 case 'p':
6758                         qtype = PRJQUOTA;
6759 quota_type:
6760                         if (qctl->qc_type != ALLQUOTA) {
6761                                 fprintf(stderr,
6762                                         "error: -u/g/p can't be used more than once\n");
6763                                 return CMD_HELP;
6764                         }
6765                         qctl->qc_type = qtype;
6766                         break;
6767                 case 'b':
6768                         if (strncmp(optarg, NOTIFY_GRACE,
6769                                     strlen(NOTIFY_GRACE)) == 0) {
6770                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
6771                         } else {
6772                                 dqi->dqi_bgrace = str2sec(optarg);
6773                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
6774                                         fprintf(stderr,
6775                                                 "error: bad block-grace: %s\n",
6776                                                 optarg);
6777                                         return CMD_HELP;
6778                                 }
6779                         }
6780                         dqb->dqb_valid |= QIF_BTIME;
6781                         break;
6782                 case 'i':
6783                         if (strncmp(optarg, NOTIFY_GRACE,
6784                                     strlen(NOTIFY_GRACE)) == 0) {
6785                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
6786                         } else {
6787                                 dqi->dqi_igrace = str2sec(optarg);
6788                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
6789                                         fprintf(stderr,
6790                                                 "error: bad inode-grace: %s\n",
6791                                                 optarg);
6792                                         return CMD_HELP;
6793                                 }
6794                         }
6795                         dqb->dqb_valid |= QIF_ITIME;
6796                         break;
6797                 case 't': /* Yes, of course! */
6798                         break;
6799                 case 'o':
6800                         if (lfs_verify_poolarg(optarg))
6801                                 return -1;
6802                         fprintf(stdout,
6803                                 "Trying to set grace for pool %s\n", optarg);
6804                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
6805                         qctl->qc_cmd  = LUSTRE_Q_SETINFOPOOL;
6806                         break;
6807                 /* getopt prints error message for us when opterr != 0 */
6808                 default:
6809                         return CMD_HELP;
6810                 }
6811         }
6812
6813         if (qctl->qc_type == ALLQUOTA) {
6814                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
6815                 return CMD_HELP;
6816         }
6817
6818         if (optind != argc - 1) {
6819                 fprintf(stderr, "error: unexpected parameters encountered\n");
6820                 return CMD_HELP;
6821         }
6822
6823         mnt = argv[optind];
6824         rc = llapi_quotactl(mnt, qctl);
6825         if (rc) {
6826                 if (*obd_type)
6827                         fprintf(stderr, "%s %s ", obd_type,
6828                                 obd_uuid2str(&qctl->obd_uuid));
6829                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
6830                 return rc;
6831         }
6832
6833         return 0;
6834 }
6835
6836 #define BSLIMIT (1 << 0)
6837 #define BHLIMIT (1 << 1)
6838 #define ISLIMIT (1 << 2)
6839 #define IHLIMIT (1 << 3)
6840
6841 int lfs_setquota(int argc, char **argv)
6842 {
6843         int c, rc = 0;
6844         struct if_quotactl *qctl;
6845         char *mnt, *obd_type;
6846         struct obd_dqblk *dqb;
6847         struct option long_opts[] = {
6848         { .val = 'b',   .name = "block-softlimit",
6849                                                 .has_arg = required_argument },
6850         { .val = 'B',   .name = "block-hardlimit",
6851                                                 .has_arg = required_argument },
6852         { .val = 'd',   .name = "default",      .has_arg = no_argument },
6853         { .val = 'g',   .name = "group",        .has_arg = required_argument },
6854         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
6855         { .val = 'i',   .name = "inode-softlimit",
6856                                                 .has_arg = required_argument },
6857         { .val = 'I',   .name = "inode-hardlimit",
6858                                                 .has_arg = required_argument },
6859         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
6860         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
6861         { .val = 'u',   .name = "user",         .has_arg = required_argument },
6862         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
6863         { .val = 'o',   .name = "pool",         .has_arg = required_argument },
6864         { .name = NULL } };
6865         unsigned int limit_mask = 0;
6866         bool use_default = false;
6867         int qtype, qctl_len;
6868
6869         qctl_len = sizeof(*qctl) + LOV_MAXPOOLNAME + 1;
6870         qctl = malloc(qctl_len);
6871         if (!qctl)
6872                 return -ENOMEM;
6873
6874         memset(qctl, 0, qctl_len);
6875         obd_type = (char *)qctl->obd_type;
6876         dqb = &qctl->qc_dqblk;
6877
6878         if (has_times_option(argc, argv)) {
6879                 rc = lfs_setquota_times(argc, argv, qctl);
6880                 goto out;
6881         }
6882
6883         qctl->qc_cmd  = LUSTRE_Q_SETQUOTA;
6884         qctl->qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
6885                                    * so it can be used as a marker that qc_type
6886                                    * isn't reinitialized from command line
6887                                    */
6888
6889         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:Uo:",
6890                 long_opts, NULL)) != -1) {
6891                 switch (c) {
6892                 case 'U':
6893                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
6894                         qtype = USRQUOTA;
6895                         qctl->qc_id = 0;
6896                         goto quota_type_def;
6897                 case 'u':
6898                         qtype = USRQUOTA;
6899                         rc = name2uid(&qctl->qc_id, optarg);
6900                         goto quota_type;
6901                 case 'G':
6902                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
6903                         qtype = GRPQUOTA;
6904                         qctl->qc_id = 0;
6905                         goto quota_type_def;
6906                 case 'g':
6907                         qtype = GRPQUOTA;
6908                         rc = name2gid(&qctl->qc_id, optarg);
6909                         goto quota_type;
6910                 case 'P':
6911                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
6912                         qtype = PRJQUOTA;
6913                         qctl->qc_id = 0;
6914                         goto quota_type_def;
6915                 case 'p':
6916                         qtype = PRJQUOTA;
6917                         rc = name2projid(&qctl->qc_id, optarg);
6918 quota_type:
6919                         if (rc) {
6920                                 if (str2quotaid(&qctl->qc_id, optarg)) {
6921                                         fprintf(stderr,
6922                                                 "%s setquota: invalid id '%s'\n",
6923                                                 progname, optarg);
6924                                         rc = -1;
6925                                         goto out;
6926                                 }
6927                         }
6928
6929                         if (qctl->qc_id == 0) {
6930                                 fprintf(stderr,
6931                                         "%s setquota: can't set quota for root usr/group/project.\n",
6932                                         progname);
6933                                 rc = -1;
6934                                 goto out;
6935                         }
6936
6937 quota_type_def:
6938                         if (qctl->qc_type != ALLQUOTA) {
6939                                 fprintf(stderr,
6940                                         "%s setquota: only one of -u, -U, -g, -G, -p or -P may be specified\n",
6941                                         progname);
6942                                 rc = CMD_HELP;
6943                                 goto out;
6944                         }
6945                         qctl->qc_type = qtype;
6946                         break;
6947                 case 'd':
6948                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
6949                         use_default = true;
6950                         break;
6951                 case 'b':
6952                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
6953                         dqb->dqb_bsoftlimit >>= 10;
6954                         limit_mask |= BSLIMIT;
6955                         if (dqb->dqb_bsoftlimit &&
6956                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
6957                                 fprintf(stderr,
6958                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
6959                                         progname,
6960                                         (unsigned long long)dqb->dqb_bsoftlimit,
6961                                         progname);
6962                         break;
6963                 case 'B':
6964                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
6965                         dqb->dqb_bhardlimit >>= 10;
6966                         limit_mask |= BHLIMIT;
6967                         if (dqb->dqb_bhardlimit &&
6968                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
6969                                 fprintf(stderr,
6970                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
6971                                         "See '%s help setquota' or Lustre manual for details\n",
6972                                         progname,
6973                                         (unsigned long long)dqb->dqb_bhardlimit,
6974                                         progname);
6975                         break;
6976                 case 'i':
6977                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
6978                         limit_mask |= ISLIMIT;
6979                         if (dqb->dqb_isoftlimit &&
6980                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
6981                                 fprintf(stderr,
6982                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
6983                                         progname,
6984                                         (unsigned long long)dqb->dqb_isoftlimit,
6985                                         progname);
6986                         break;
6987                 case 'I':
6988                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
6989                         limit_mask |= IHLIMIT;
6990                         if (dqb->dqb_ihardlimit &&
6991                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
6992                                 fprintf(stderr,
6993                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
6994                                         progname,
6995                                         (unsigned long long)dqb->dqb_ihardlimit,
6996                                         progname);
6997                         break;
6998                 case 'o':
6999                         if (lfs_verify_poolarg(optarg)) {
7000                                 rc = -1;
7001                                 goto out;
7002                         }
7003                         fprintf(stdout,
7004                                 "Trying to set quota for pool %s\n", optarg);
7005                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7006                         qctl->qc_cmd  = LUSTRE_Q_SETQUOTAPOOL;
7007                         break;
7008                 default:
7009                         fprintf(stderr,
7010                                 "%s setquota: unrecognized option '%s'\n",
7011                                 progname, argv[optind - 1]);
7012                         rc = CMD_HELP;
7013                         goto out;
7014                 }
7015         }
7016
7017         if (qctl->qc_type == ALLQUOTA) {
7018                 fprintf(stderr,
7019                         "%s setquota: either -u or -g must be specified\n",
7020                         progname);
7021                 rc = CMD_HELP;
7022                 goto out;
7023         }
7024
7025         if (!use_default && limit_mask == 0) {
7026                 fprintf(stderr,
7027                         "%s setquota: at least one limit must be specified\n",
7028                         progname);
7029                 rc = CMD_HELP;
7030                 goto out;
7031         }
7032
7033         if (use_default && limit_mask != 0) {
7034                 fprintf(stderr,
7035                         "%s setquota: limits should not be specified when using default quota\n",
7036                         progname);
7037                 rc = CMD_HELP;
7038                 goto out;
7039         }
7040
7041         if (use_default && qctl->qc_id == 0) {
7042                 fprintf(stderr,
7043                         "%s setquota: can not set default quota for root user/group/project\n",
7044                         progname);
7045                 rc = CMD_HELP;
7046                 goto out;
7047         }
7048
7049         if (optind != argc - 1) {
7050                 fprintf(stderr,
7051                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
7052                         progname, argv[optind]);
7053                 rc = CMD_HELP;
7054                 goto out;
7055         }
7056
7057         mnt = argv[optind];
7058
7059         if (use_default) {
7060                 dqb->dqb_bhardlimit = 0;
7061                 dqb->dqb_bsoftlimit = 0;
7062                 dqb->dqb_ihardlimit = 0;
7063                 dqb->dqb_isoftlimit = 0;
7064                 dqb->dqb_itime = 0;
7065                 dqb->dqb_btime = 0;
7066                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
7067         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
7068                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
7069                 /* sigh, we can't just set blimits/ilimits */
7070                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
7071                                                .qc_type = qctl->qc_type,
7072                                                .qc_id   = qctl->qc_id};
7073
7074                 rc = llapi_quotactl(mnt, &tmp_qctl);
7075                 if (rc < 0)
7076                         goto out;
7077
7078                 if (!(limit_mask & BHLIMIT))
7079                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
7080                 if (!(limit_mask & BSLIMIT))
7081                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
7082                 if (!(limit_mask & IHLIMIT))
7083                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
7084                 if (!(limit_mask & ISLIMIT))
7085                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
7086
7087                 /* Keep grace times if we have got no softlimit arguments */
7088                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
7089                         dqb->dqb_valid |= QIF_BTIME;
7090                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
7091                 }
7092
7093                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
7094                         dqb->dqb_valid |= QIF_ITIME;
7095                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
7096                 }
7097         }
7098
7099         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
7100         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
7101
7102         rc = llapi_quotactl(mnt, qctl);
7103         if (rc) {
7104                 if (*obd_type)
7105                         fprintf(stderr,
7106                                 "%s setquota: cannot quotactl '%s' '%s': %s",
7107                                 progname, obd_type,
7108                                 obd_uuid2str(&qctl->obd_uuid), strerror(-rc));
7109         }
7110 out:
7111         free(qctl);
7112         return rc;
7113 }
7114
7115 /* Converts seconds value into format string
7116  * result is returned in buf
7117  * Notes:
7118  *        1. result is in descenting order: 1w2d3h4m5s
7119  *        2. zero fields are not filled (except for p. 3): 5d1s
7120  *        3. zero seconds value is presented as "0s"
7121  */
7122 static char *__sec2str(time_t seconds, char *buf)
7123 {
7124         const char spec[] = "smhdw";
7125         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7126         unsigned long c;
7127         char *tail = buf;
7128         int i;
7129
7130         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
7131                 c = seconds / mult[i];
7132
7133                 if (c > 0 || (i == 0 && buf == tail))
7134                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
7135                                           spec[i]);
7136
7137                 seconds %= mult[i];
7138         }
7139
7140         return tail;
7141 }
7142
7143 static void sec2str(time_t seconds, char *buf, int rc)
7144 {
7145         char *tail = buf;
7146
7147         if (rc)
7148                 *tail++ = '[';
7149
7150         tail = __sec2str(seconds, tail);
7151
7152         if (rc && tail - buf < 39) {
7153                 *tail++ = ']';
7154                 *tail++ = 0;
7155         }
7156 }
7157
7158 static void diff2str(time_t seconds, char *buf, time_t now)
7159 {
7160         buf[0] = 0;
7161         if (!seconds)
7162                 return;
7163         if (seconds <= now) {
7164                 strcpy(buf, "none");
7165                 return;
7166         }
7167         __sec2str(seconds - now, buf);
7168 }
7169
7170 static void print_quota_title(char *name, struct if_quotactl *qctl,
7171                               bool human_readable, bool show_default)
7172 {
7173         if (show_default) {
7174                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
7175                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
7176                        "Filesystem", "bquota", "blimit", "bgrace",
7177                        "iquota", "ilimit", "igrace");
7178         } else {
7179                 printf("Disk quotas for %s %s (%cid %u):\n",
7180                        qtype_name(qctl->qc_type), name,
7181                        *qtype_name(qctl->qc_type), qctl->qc_id);
7182                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
7183                        "Filesystem", human_readable ? "used" : "kbytes",
7184                        "quota", "limit", "grace",
7185                        "files", "quota", "limit", "grace");
7186         }
7187 }
7188
7189 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
7190 {
7191         if (!h) {
7192                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
7193         } else {
7194                 if (num >> 40)
7195                         snprintf(buf, buflen, "%5.4gP",
7196                                  (double)num / ((__u64)1 << 40));
7197                 else if (num >> 30)
7198                         snprintf(buf, buflen, "%5.4gT",
7199                                  (double)num / (1 << 30));
7200                 else if (num >> 20)
7201                         snprintf(buf, buflen, "%5.4gG",
7202                                  (double)num / (1 << 20));
7203                 else if (num >> 10)
7204                         snprintf(buf, buflen, "%5.4gM",
7205                                  (double)num / (1 << 10));
7206                 else
7207                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
7208         }
7209 }
7210
7211 #define STRBUF_LEN      32
7212 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
7213                         int rc, bool h, bool show_default)
7214 {
7215         time_t now;
7216
7217         time(&now);
7218
7219         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
7220             qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
7221             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
7222                 int bover = 0, iover = 0;
7223                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
7224                 char numbuf[3][STRBUF_LEN];
7225                 char timebuf[40];
7226                 char strbuf[STRBUF_LEN];
7227
7228                 if (dqb->dqb_bhardlimit &&
7229                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
7230                         bover = 1;
7231                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
7232                         if (dqb->dqb_btime > now)
7233                                 bover = 2;
7234                         else
7235                                 bover = 3;
7236                 }
7237
7238                 if (dqb->dqb_ihardlimit &&
7239                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
7240                         iover = 1;
7241                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
7242                         if (dqb->dqb_itime > now)
7243                                 iover = 2;
7244                         else
7245                                 iover = 3;
7246                 }
7247
7248                 if (strlen(mnt) > 15)
7249                         printf("%s\n%15s", mnt, "");
7250                 else
7251                         printf("%15s", mnt);
7252
7253                 if (bover)
7254                         diff2str(dqb->dqb_btime, timebuf, now);
7255                 else if (show_default)
7256                         snprintf(timebuf, sizeof(timebuf), "%llu",
7257                                  (unsigned long long)dqb->dqb_btime);
7258
7259                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
7260                            strbuf, sizeof(strbuf), h);
7261                 if (rc == -EREMOTEIO)
7262                         sprintf(numbuf[0], "%s*", strbuf);
7263                 else
7264                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
7265                                 "%s" : "[%s]", strbuf);
7266
7267                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
7268                 if (type == QC_GENERAL)
7269                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
7270                                 "%s" : "[%s]", strbuf);
7271                 else
7272                         sprintf(numbuf[1], "%s", "-");
7273
7274                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
7275                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
7276                         "%s" : "[%s]", strbuf);
7277
7278                 if (show_default)
7279                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
7280                 else
7281                         printf(" %7s%c %6s %7s %7s",
7282                                numbuf[0], bover ? '*' : ' ', numbuf[1],
7283                                numbuf[2], bover > 1 ? timebuf : "-");
7284
7285                 if (iover)
7286                         diff2str(dqb->dqb_itime, timebuf, now);
7287                 else if (show_default)
7288                         snprintf(timebuf, sizeof(timebuf), "%llu",
7289                                  (unsigned long long)dqb->dqb_itime);
7290
7291                 snprintf(numbuf[0], sizeof(numbuf),
7292                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
7293                          (uintmax_t)dqb->dqb_curinodes);
7294
7295                 if (type == QC_GENERAL)
7296                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
7297                                 "%ju" : "[%ju]",
7298                                 (uintmax_t)dqb->dqb_isoftlimit);
7299                 else
7300                         sprintf(numbuf[1], "%s", "-");
7301
7302                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
7303                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
7304
7305                 if (show_default)
7306                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
7307                 else if (type != QC_OSTIDX)
7308                         printf(" %7s%c %6s %7s %7s",
7309                                numbuf[0], iover ? '*' : ' ', numbuf[1],
7310                                numbuf[2], iover > 1 ? timebuf : "-");
7311                 else
7312                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
7313                 printf("\n");
7314         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO || LUSTRE_Q_GETINFOPOOL ||
7315                    qctl->qc_cmd == Q_GETOINFO) {
7316                 char bgtimebuf[40];
7317                 char igtimebuf[40];
7318
7319                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
7320                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
7321                 else
7322                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
7323                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
7324                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
7325                 else
7326                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
7327
7328                 printf("Block grace time: %s; Inode grace time: %s\n",
7329                        bgtimebuf, igtimebuf);
7330         }
7331 }
7332
7333 static int tgt_name2index(const char *tgtname, unsigned int *idx)
7334 {
7335         char *dash, *endp;
7336
7337         /* format is "lustre-OST0001" */
7338         dash = memchr(tgtname, '-', LUSTRE_MAXFSNAME + 1);
7339         if (!dash) {
7340                 fprintf(stderr, "wrong tgtname format '%s'\n", tgtname);
7341                 return -EINVAL;
7342         }
7343         dash += 4;
7344
7345         *idx = strtoul(dash, &endp, 16);
7346         if (*idx > 0xffff) {
7347                 fprintf(stderr, "wrong index %s\n", tgtname);
7348                 return -ERANGE;
7349         }
7350
7351         return 0;
7352 }
7353
7354 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
7355                            bool h, __u64 *total)
7356 {
7357         int rc = 0, rc1 = 0, count = 0, i = 0;
7358         char **list = NULL, *buffer = NULL;
7359         __u32 valid = qctl->qc_valid;
7360
7361         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL && is_mdt)
7362                 return 0;
7363
7364         /* Is it correct for the case OST0000, OST0002, OST0003 -
7365          * we will ask OST0001 that is absent and won't ask OST0003? */
7366         rc = llapi_get_obd_count(mnt, &count, is_mdt);
7367         if (rc) {
7368                 fprintf(stderr, "can not get %s count: %s\n",
7369                         is_mdt ? "mdt" : "ost", strerror(-rc));
7370                 return rc;
7371         }
7372
7373         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
7374                 char fname[PATH_MAX];
7375                 char fsname[LUSTRE_MAXFSNAME + 1];
7376                 int bufsize = sizeof(struct obd_uuid) * count;
7377
7378                 rc = llapi_search_fsname(mnt, fsname);
7379                 if (rc) {
7380                         fprintf(stderr, "cannot get fsname for mountpoint %s\n",
7381                                 mnt);
7382                         goto out;
7383                 }
7384                 buffer = malloc(bufsize + sizeof(*list) * count);
7385                 if (!buffer)
7386                         return -ENOMEM;
7387                 list = (char **)(buffer + bufsize);
7388                 snprintf(fname, PATH_MAX, "%s.%s", fsname, qctl->qc_poolname);
7389                 count = llapi_get_poolmembers(fname, list, count,
7390                                               buffer, bufsize);
7391                 if (count <= 0)
7392                         goto out;
7393         }
7394
7395         for (i = 0; i < count; i++) {
7396                 if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
7397                         unsigned int index;
7398
7399                         if (tgt_name2index(list[i], &index))
7400                                 continue;
7401                         qctl->qc_idx = index;
7402                 } else {
7403                         qctl->qc_idx = i;
7404                 }
7405
7406                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
7407                 rc = llapi_quotactl(mnt, qctl);
7408                 if (rc) {
7409                         /* It is remote client case. */
7410                         if (rc == -EOPNOTSUPP) {
7411                                 rc = 0;
7412                                 goto out;
7413                         }
7414
7415                         if (!rc1)
7416                                 rc1 = rc;
7417                         fprintf(stderr, "quotactl %s%d failed.\n",
7418                                 is_mdt ? "mdt" : "ost", qctl->qc_idx);
7419                         continue;
7420                 }
7421
7422                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
7423                             qctl->qc_valid, 0, h, false);
7424                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
7425                                    qctl->qc_dqblk.dqb_bhardlimit;
7426         }
7427 out:
7428         if (buffer)
7429                 free(buffer);
7430         qctl->qc_valid = valid;
7431         return rc ? : rc1;
7432 }
7433
7434 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
7435                            int verbose, int quiet, bool human_readable,
7436                            bool show_default)
7437 {
7438         int rc1 = 0, rc2 = 0, rc3 = 0;
7439         char *obd_type = (char *)qctl->obd_type;
7440         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
7441         __u64 total_ialloc = 0, total_balloc = 0;
7442         bool use_default_for_blk = false;
7443         bool use_default_for_file = false;
7444         int inacc;
7445
7446         rc1 = llapi_quotactl(mnt, qctl);
7447         if (rc1 < 0) {
7448                 switch (rc1) {
7449                 case -ESRCH:
7450                         fprintf(stderr, "%s quotas are not enabled.\n",
7451                                 qtype_name(qctl->qc_type));
7452                         goto out;
7453                 case -EPERM:
7454                         fprintf(stderr, "Permission denied.\n");
7455                 case -ENODEV:
7456                 case -ENOENT:
7457                         /* We already got error message. */
7458                         goto out;
7459                 default:
7460                         fprintf(stderr, "Unexpected quotactl error: %s\n",
7461                                 strerror(-rc1));
7462                 }
7463         }
7464
7465         if (!show_default && qctl->qc_id == 0) {
7466                 qctl->qc_dqblk.dqb_bhardlimit = 0;
7467                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
7468                 qctl->qc_dqblk.dqb_ihardlimit = 0;
7469                 qctl->qc_dqblk.dqb_isoftlimit = 0;
7470                 qctl->qc_dqblk.dqb_btime = 0;
7471                 qctl->qc_dqblk.dqb_itime = 0;
7472                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
7473         }
7474
7475         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
7476             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
7477                 use_default_for_blk = true;
7478                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
7479         }
7480
7481         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
7482             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
7483                 use_default_for_file = true;
7484                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
7485         }
7486
7487         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7488              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
7489              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
7490                 print_quota_title(name, qctl, human_readable, show_default);
7491
7492         if (rc1 && *obd_type)
7493                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
7494
7495         if (qctl->qc_valid != QC_GENERAL)
7496                 mnt = "";
7497
7498         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7499                  qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
7500                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
7501                  (QIF_LIMITS|QIF_USAGE));
7502
7503         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
7504
7505         if (!show_default && verbose &&
7506             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
7507             qctl->qc_cmd != LUSTRE_Q_GETINFOPOOL) {
7508                 char strbuf[STRBUF_LEN];
7509
7510                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
7511                                       &total_ialloc);
7512                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
7513                                       &total_balloc);
7514                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
7515                            human_readable);
7516                 printf("Total allocated inode limit: %ju, total allocated block limit: %s\n",
7517                        (uintmax_t)total_ialloc, strbuf);
7518         }
7519
7520         if (use_default_for_blk)
7521                 printf("%cid %u is using default block quota setting\n",
7522                        *qtype_name(qctl->qc_type), qctl->qc_id);
7523
7524         if (use_default_for_file)
7525                 printf("%cid %u is using default file quota setting\n",
7526                        *qtype_name(qctl->qc_type), qctl->qc_id);
7527
7528         if (rc1 || rc2 || rc3 || inacc)
7529                 printf("Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in \"[]\" is inaccurate.\n");
7530 out:
7531         if (rc1)
7532                 return rc1;
7533         if (rc2)
7534                 return rc2;
7535         if (rc3)
7536                 return rc3;
7537         if (inacc)
7538                 return -EIO;
7539
7540         return 0;
7541 }
7542
7543 static int lfs_project(int argc, char **argv)
7544 {
7545         int ret = 0, err = 0, c, i;
7546         struct project_handle_control phc = { 0 };
7547         enum lfs_project_ops_t op;
7548
7549         phc.newline = true;
7550         phc.assign_projid = false;
7551         /* default action */
7552         op = LFS_PROJECT_LIST;
7553
7554         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
7555                 switch (c) {
7556                 case 'c':
7557                         if (op != LFS_PROJECT_LIST) {
7558                                 fprintf(stderr,
7559                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7560                                         progname);
7561                                 return CMD_HELP;
7562                         }
7563
7564                         op = LFS_PROJECT_CHECK;
7565                         break;
7566                 case 'C':
7567                         if (op != LFS_PROJECT_LIST) {
7568                                 fprintf(stderr,
7569                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7570                                         progname);
7571                                 return CMD_HELP;
7572                         }
7573
7574                         op = LFS_PROJECT_CLEAR;
7575                         break;
7576                 case 's':
7577                         if (op != LFS_PROJECT_LIST) {
7578                                 fprintf(stderr,
7579                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7580                                         progname);
7581                                 return CMD_HELP;
7582                         }
7583
7584                         phc.set_inherit = true;
7585                         op = LFS_PROJECT_SET;
7586                         break;
7587                 case 'd':
7588                         phc.dironly = true;
7589                         break;
7590                 case 'k':
7591                         phc.keep_projid = true;
7592                         break;
7593                 case 'r':
7594                         phc.recursive = true;
7595                         break;
7596                 case 'p':
7597                         if (str2quotaid(&phc.projid, optarg)) {
7598                                 fprintf(stderr,
7599                                         "Invalid project ID: %s\n",
7600                                         optarg);
7601                                 return CMD_HELP;
7602                         }
7603
7604                         phc.assign_projid = true;
7605
7606                         break;
7607                 case '0':
7608                         phc.newline = false;
7609                         break;
7610                 default:
7611                         fprintf(stderr, "%s: invalid option '%c'\n",
7612                                 progname, optopt);
7613                         return CMD_HELP;
7614                 }
7615         }
7616
7617         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
7618                 op = LFS_PROJECT_SET;
7619                 phc.set_projid = true;
7620         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
7621                 phc.set_projid = true;
7622         }
7623
7624         switch (op) {
7625         case LFS_PROJECT_CHECK:
7626                 if (phc.keep_projid) {
7627                         fprintf(stderr,
7628                                 "%s: '-k' is useless together with '-c'\n",
7629                                 progname);
7630                         return CMD_HELP;
7631                 }
7632                 break;
7633         case LFS_PROJECT_CLEAR:
7634                 if (!phc.newline) {
7635                         fprintf(stderr,
7636                                 "%s: '-0' is useless together with '-C'\n",
7637                                 progname);
7638                         return CMD_HELP;
7639                 }
7640                 if (phc.assign_projid) {
7641                         fprintf(stderr,
7642                                 "%s: '-p' is useless together with '-C'\n",
7643                                 progname);
7644                         return CMD_HELP;
7645                 }
7646                 break;
7647         case LFS_PROJECT_SET:
7648                 if (!phc.newline) {
7649                         fprintf(stderr,
7650                                 "%s: '-0' is useless together with '-s'\n",
7651                                 progname);
7652                         return CMD_HELP;
7653                 }
7654                 if (phc.keep_projid) {
7655                         fprintf(stderr,
7656                                 "%s: '-k' is useless together with '-s'\n",
7657                                 progname);
7658                         return CMD_HELP;
7659                 }
7660                 break;
7661         default:
7662                 if (!phc.newline) {
7663                         fprintf(stderr,
7664                                 "%s: '-0' is useless for list operations\n",
7665                                 progname);
7666                         return CMD_HELP;
7667                 }
7668                 break;
7669         }
7670
7671         argv += optind;
7672         argc -= optind;
7673         if (argc == 0) {
7674                 fprintf(stderr, "%s: missing file or directory target(s)\n",
7675                         progname);
7676                 return CMD_HELP;
7677         }
7678
7679         for (i = 0; i < argc; i++) {
7680                 switch (op) {
7681                 case LFS_PROJECT_CHECK:
7682                         err = lfs_project_check(argv[i], &phc);
7683                         break;
7684                 case LFS_PROJECT_LIST:
7685                         err = lfs_project_list(argv[i], &phc);
7686                         break;
7687                 case LFS_PROJECT_CLEAR:
7688                         err = lfs_project_clear(argv[i], &phc);
7689                         break;
7690                 case LFS_PROJECT_SET:
7691                         err = lfs_project_set(argv[i], &phc);
7692                         break;
7693                 default:
7694                         break;
7695                 }
7696                 if (err && !ret)
7697                         ret = err;
7698         }
7699
7700         return ret;
7701 }
7702
7703 static int lfs_quota(int argc, char **argv)
7704 {
7705         int c;
7706         char *mnt, *name = NULL;
7707         struct if_quotactl *qctl;
7708         char *obd_uuid;
7709         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
7710         __u32 valid = QC_GENERAL, idx = 0;
7711         bool human_readable = false;
7712         bool show_default = false;
7713         int qtype;
7714         struct option long_opts[] = {
7715         { .val = 1,     .name = "pool", .has_arg = required_argument },
7716         { .name = NULL } };
7717
7718         qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
7719         if (!qctl)
7720                 return -ENOMEM;
7721
7722         qctl->qc_cmd = LUSTRE_Q_GETQUOTA;
7723         qctl->qc_type = ALLQUOTA;
7724         obd_uuid = (char *)qctl->obd_uuid.uuid;
7725
7726         while ((c = getopt_long(argc, argv, "gGi:I:o:pPqtuUvh",
7727                 long_opts, NULL)) != -1) {
7728                 switch (c) {
7729                 case 'U':
7730                         show_default = true;
7731                 case 'u':
7732                         qtype = USRQUOTA;
7733                         goto quota_type;
7734                 case 'G':
7735                         show_default = true;
7736                 case 'g':
7737                         qtype = GRPQUOTA;
7738                         goto quota_type;
7739                 case 'P':
7740                         show_default = true;
7741                 case 'p':
7742                         qtype = PRJQUOTA;
7743 quota_type:
7744                         if (qctl->qc_type != ALLQUOTA) {
7745                                 fprintf(stderr,
7746                                         "%s quota: only one of -u, -g, or -p may be specified\n",
7747                                         progname);
7748                                 rc = CMD_HELP;
7749                                 goto out;
7750                         }
7751                         qctl->qc_type = qtype;
7752                         break;
7753                 case 't':
7754                         qctl->qc_cmd = LUSTRE_Q_GETINFO;
7755                         break;
7756                 case 'o':
7757                         valid = qctl->qc_valid = QC_UUID;
7758                         snprintf(obd_uuid, sizeof(*obd_uuid), "%s", optarg);
7759                         break;
7760                 case 'i':
7761                         valid = qctl->qc_valid = QC_MDTIDX;
7762                         idx = qctl->qc_idx = atoi(optarg);
7763                         if (idx == 0 && *optarg != '0') {
7764                                 fprintf(stderr,
7765                                         "%s quota: invalid MDT index '%s'\n",
7766                                         progname, optarg);
7767                                 rc = CMD_HELP;
7768                                 goto out;
7769                         }
7770                         break;
7771                 case 'I':
7772                         valid = qctl->qc_valid = QC_OSTIDX;
7773                         idx = qctl->qc_idx = atoi(optarg);
7774                         if (idx == 0 && *optarg != '0') {
7775                                 fprintf(stderr,
7776                                         "%s quota: invalid OST index '%s'\n",
7777                                         progname, optarg);
7778                                 rc = CMD_HELP;
7779                                 goto out;
7780                         }
7781                         break;
7782                 case 'v':
7783                         verbose = 1;
7784                         break;
7785                 case 'q':
7786                         quiet = 1;
7787                         break;
7788                 case 'h':
7789                         human_readable = true;
7790                         break;
7791                 case 1:
7792                         if (lfs_verify_poolarg(optarg)) {
7793                                 rc = -1;
7794                                 goto out;
7795                         }
7796                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7797                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_GETINFO ?
7798                                                 LUSTRE_Q_GETINFOPOOL :
7799                                                 LUSTRE_Q_GETQUOTAPOOL;
7800                         break;
7801                 default:
7802                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
7803                                 progname, argv[optind - 1]);
7804                         rc = CMD_HELP;
7805                         goto out;
7806                 }
7807         }
7808
7809         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
7810         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7811              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
7812              qctl->qc_type == ALLQUOTA &&
7813              optind == argc - 1 && !show_default) {
7814                 qctl->qc_idx = idx;
7815
7816                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
7817                         qctl->qc_type = qtype;
7818                         qctl->qc_valid = valid;
7819                         if (qtype == USRQUOTA) {
7820                                 qctl->qc_id = geteuid();
7821                                 rc = uid2name(&name, qctl->qc_id);
7822                         } else {
7823                                 qctl->qc_id = getegid();
7824                                 rc = gid2name(&name, qctl->qc_id);
7825                                 memset(&qctl->qc_dqblk, 0,
7826                                        sizeof(qctl->qc_dqblk));
7827                         }
7828                         if (rc)
7829                                 name = "<unknown>";
7830                         mnt = argv[optind];
7831                         rc1 = get_print_quota(mnt, name, qctl, verbose, quiet,
7832                                               human_readable, show_default);
7833                         if (rc1 && !rc)
7834                                 rc = rc1;
7835                 }
7836                 goto out;
7837         /* lfs quota -u username /path/to/lustre/mount */
7838         } else if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7839                    qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
7840                 /* options should be followed by u/g-name and mntpoint */
7841                 if ((!show_default && optind + 2 != argc) ||
7842                     (show_default && optind + 1 != argc) ||
7843                     qctl->qc_type == ALLQUOTA) {
7844                         fprintf(stderr,
7845                                 "%s quota: name and mount point must be specified\n",
7846                                 progname);
7847                         rc = CMD_HELP;
7848                         goto out;
7849                 }
7850
7851                 if (!show_default) {
7852                         name = argv[optind++];
7853                         switch (qctl->qc_type) {
7854                         case USRQUOTA:
7855                                 rc = name2uid(&qctl->qc_id, name);
7856                                 break;
7857                         case GRPQUOTA:
7858                                 rc = name2gid(&qctl->qc_id, name);
7859                                 break;
7860                         case PRJQUOTA:
7861                                 rc = name2projid(&qctl->qc_id, name);
7862                                 break;
7863                         default:
7864                                 rc = -ENOTSUP;
7865                                 break;
7866                         }
7867                 } else {
7868                         qctl->qc_valid = QC_GENERAL;
7869                         qctl->qc_cmd = LUSTRE_Q_GETDEFAULT;
7870                         qctl->qc_id = 0;
7871                 }
7872
7873                 if (rc) {
7874                         if (str2quotaid(&qctl->qc_id, name)) {
7875                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
7876                                         progname, name);
7877                                 rc = CMD_HELP;
7878                                 goto out;
7879                         }
7880                 }
7881         } else if (optind + 1 != argc || qctl->qc_type == ALLQUOTA) {
7882                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
7883                         progname);
7884                 rc = CMD_HELP;
7885                 goto out;
7886         }
7887
7888         mnt = argv[optind];
7889         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
7890                              human_readable, show_default);
7891 out:
7892         free(qctl);
7893         return rc;
7894 }
7895 #endif /* HAVE_SYS_QUOTA_H! */
7896
7897 static int flushctx_ioctl(char *mp)
7898 {
7899         int fd, rc;
7900
7901         fd = open(mp, O_RDONLY);
7902         if (fd == -1) {
7903                 fprintf(stderr, "flushctx: error open %s: %s\n",
7904                         mp, strerror(errno));
7905                 return -1;
7906         }
7907
7908         rc = ioctl(fd, LL_IOC_FLUSHCTX);
7909         if (rc == -1)
7910                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
7911                         mp, strerror(errno));
7912
7913         close(fd);
7914         return rc;
7915 }
7916
7917 static int lfs_flushctx(int argc, char **argv)
7918 {
7919         int     kdestroy = 0, c;
7920         char    mntdir[PATH_MAX] = {'\0'};
7921         int     index = 0;
7922         int     rc = 0;
7923
7924         while ((c = getopt(argc, argv, "k")) != -1) {
7925                 switch (c) {
7926                 case 'k':
7927                         kdestroy = 1;
7928                         break;
7929                 default:
7930                         fprintf(stderr,
7931                                 "error: %s: option '-%c' unrecognized\n",
7932                                 argv[0], c);
7933                         return CMD_HELP;
7934                 }
7935         }
7936
7937         if (kdestroy) {
7938                 rc = system("kdestroy > /dev/null");
7939                 if (rc) {
7940                         rc = WEXITSTATUS(rc);
7941                         fprintf(stderr,
7942                                 "error destroying tickets: %d, continuing\n",
7943                                 rc);
7944                 }
7945         }
7946
7947         if (optind >= argc) {
7948                 /* flush for all mounted lustre fs. */
7949                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
7950                         /* Check if we have a mount point */
7951                         if (mntdir[0] == '\0')
7952                                 continue;
7953
7954                         if (flushctx_ioctl(mntdir))
7955                                 rc = -1;
7956
7957                         mntdir[0] = '\0'; /* avoid matching in next loop */
7958                 }
7959         } else {
7960                 /* flush fs as specified */
7961                 while (optind < argc) {
7962                         if (flushctx_ioctl(argv[optind++]))
7963                                 rc = -1;
7964                 }
7965         }
7966         return rc;
7967 }
7968
7969 static int lfs_changelog(int argc, char **argv)
7970 {
7971         void *changelog_priv;
7972         struct changelog_rec *rec;
7973         long long startrec = 0, endrec = 0;
7974         char *mdd;
7975         struct option long_opts[] = {
7976                 { .val = 'f', .name = "follow", .has_arg = no_argument },
7977                 { .name = NULL } };
7978         char short_opts[] = "f";
7979         int rc, follow = 0;
7980
7981         while ((rc = getopt_long(argc, argv, short_opts,
7982                 long_opts, NULL)) != -1) {
7983                 switch (rc) {
7984                 case 'f':
7985                         follow++;
7986                         break;
7987                 default:
7988                         fprintf(stderr,
7989                                 "%s changelog: unrecognized option '%s'\n",
7990                                 progname, argv[optind - 1]);
7991                         return CMD_HELP;
7992                 }
7993         }
7994         if (optind >= argc) {
7995                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
7996                         progname);
7997                 return CMD_HELP;
7998         }
7999
8000         mdd = argv[optind++];
8001         if (argc > optind)
8002                 startrec = strtoll(argv[optind++], NULL, 10);
8003         if (argc > optind)
8004                 endrec = strtoll(argv[optind++], NULL, 10);
8005
8006         rc = llapi_changelog_start(&changelog_priv,
8007                                    CHANGELOG_FLAG_BLOCK |
8008                                    CHANGELOG_FLAG_JOBID |
8009                                    CHANGELOG_FLAG_EXTRA_FLAGS |
8010                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
8011                                    mdd, startrec);
8012         if (rc < 0) {
8013                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
8014                         progname, strerror(errno = -rc));
8015                 return rc;
8016         }
8017
8018         rc = llapi_changelog_set_xflags(changelog_priv,
8019                                         CHANGELOG_EXTRA_FLAG_UIDGID |
8020                                         CHANGELOG_EXTRA_FLAG_NID |
8021                                         CHANGELOG_EXTRA_FLAG_OMODE |
8022                                         CHANGELOG_EXTRA_FLAG_XATTR);
8023         if (rc < 0) {
8024                 fprintf(stderr,
8025                         "%s changelog: cannot set xflags for changelog: %s\n",
8026                         progname, strerror(errno = -rc));
8027                 return rc;
8028         }
8029
8030         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
8031                 time_t secs;
8032                 struct tm ts;
8033
8034                 if (endrec && rec->cr_index > endrec) {
8035                         llapi_changelog_free(&rec);
8036                         break;
8037                 }
8038                 if (rec->cr_index < startrec) {
8039                         llapi_changelog_free(&rec);
8040                         continue;
8041                 }
8042
8043                 secs = rec->cr_time >> 30;
8044                 gmtime_r(&secs, &ts);
8045                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
8046                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
8047                        changelog_type2str(rec->cr_type),
8048                        ts.tm_hour, ts.tm_min, ts.tm_sec,
8049                        (int)(rec->cr_time & ((1 << 30) - 1)),
8050                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
8051                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
8052
8053                 if (rec->cr_flags & CLF_JOBID) {
8054                         struct changelog_ext_jobid *jid =
8055                                 changelog_rec_jobid(rec);
8056
8057                         if (jid->cr_jobid[0] != '\0')
8058                                 printf(" j=%s", jid->cr_jobid);
8059                 }
8060
8061                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
8062                         struct changelog_ext_extra_flags *ef =
8063                                 changelog_rec_extra_flags(rec);
8064
8065                         printf(" ef=0x%llx",
8066                                (unsigned long long)ef->cr_extra_flags);
8067
8068                         if (ef->cr_extra_flags & CLFE_UIDGID) {
8069                                 struct changelog_ext_uidgid *uidgid =
8070                                         changelog_rec_uidgid(rec);
8071
8072                                 printf(" u=%llu:%llu",
8073                                        (unsigned long long)uidgid->cr_uid,
8074                                        (unsigned long long)uidgid->cr_gid);
8075                         }
8076                         if (ef->cr_extra_flags & CLFE_NID) {
8077                                 struct changelog_ext_nid *nid =
8078                                         changelog_rec_nid(rec);
8079
8080                                 printf(" nid=%s",
8081                                        libcfs_nid2str(nid->cr_nid));
8082                         }
8083
8084                         if (ef->cr_extra_flags & CLFE_OPEN) {
8085                                 struct changelog_ext_openmode *omd =
8086                                         changelog_rec_openmode(rec);
8087                                 char mode[] = "---";
8088
8089                                 /* exec mode must be exclusive */
8090                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
8091                                         mode[2] = 'x';
8092                                 } else {
8093                                         if (omd->cr_openflags & MDS_FMODE_READ)
8094                                                 mode[0] = 'r';
8095                                         if (omd->cr_openflags &
8096                                             (MDS_FMODE_WRITE |
8097                                              MDS_OPEN_TRUNC |
8098                                              MDS_OPEN_APPEND))
8099                                                 mode[1] = 'w';
8100                                 }
8101
8102                                 if (strcmp(mode, "---") != 0)
8103                                         printf(" m=%s", mode);
8104                         }
8105
8106                         if (ef->cr_extra_flags & CLFE_XATTR) {
8107                                 struct changelog_ext_xattr *xattr =
8108                                         changelog_rec_xattr(rec);
8109
8110                                 if (xattr->cr_xattr[0] != '\0')
8111                                         printf(" x=%s", xattr->cr_xattr);
8112                         }
8113                 }
8114
8115                 if (!fid_is_zero(&rec->cr_pfid))
8116                         printf(" p="DFID, PFID(&rec->cr_pfid));
8117                 if (rec->cr_namelen)
8118                         printf(" %.*s", rec->cr_namelen,
8119                                changelog_rec_name(rec));
8120
8121                 if (rec->cr_flags & CLF_RENAME) {
8122                         struct changelog_ext_rename *rnm =
8123                                 changelog_rec_rename(rec);
8124
8125                         if (!fid_is_zero(&rnm->cr_sfid))
8126                                 printf(" s="DFID" sp="DFID" %.*s",
8127                                        PFID(&rnm->cr_sfid),
8128                                        PFID(&rnm->cr_spfid),
8129                                        (int)changelog_rec_snamelen(rec),
8130                                        changelog_rec_sname(rec));
8131                 }
8132                 printf("\n");
8133
8134                 llapi_changelog_free(&rec);
8135         }
8136
8137         llapi_changelog_fini(&changelog_priv);
8138
8139         if (rc < 0)
8140                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
8141                         progname, strerror(errno = -rc));
8142
8143         return (rc == 1 ? 0 : rc);
8144 }
8145
8146 static int lfs_changelog_clear(int argc, char **argv)
8147 {
8148         long long endrec;
8149         int rc;
8150
8151         if (argc != 4)
8152                 return CMD_HELP;
8153
8154         endrec = strtoll(argv[3], NULL, 10);
8155
8156         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
8157
8158         if (rc == -EINVAL)
8159                 fprintf(stderr, "%s: record out of range: %llu\n",
8160                         argv[0], endrec);
8161         else if (rc == -ENOENT)
8162                 fprintf(stderr, "%s: no changelog user: %s\n",
8163                         argv[0], argv[2]);
8164         else if (rc)
8165                 fprintf(stderr, "%s error: %s\n", argv[0],
8166                         strerror(-rc));
8167
8168         if (rc)
8169                 errno = -rc;
8170
8171         return rc;
8172 }
8173
8174 static int lfs_fid2path(int argc, char **argv)
8175 {
8176         struct option long_opts[] = {
8177                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
8178                 { .val = 'l',   .name = "link", .has_arg = required_argument },
8179                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
8180                 { .name = NULL } };
8181         char short_opts[] = "cl:r:";
8182         char mntdir[PATH_MAX];
8183         char *device, *fid, *path, *rootpath;
8184         long long recno = -1;
8185         int linkno = -1;
8186         int lnktmp;
8187         int printcur = 0;
8188         int rc = 0;
8189         char *endptr = NULL;
8190
8191         while ((rc = getopt_long(argc, argv, short_opts,
8192                 long_opts, NULL)) != -1) {
8193                 switch (rc) {
8194                 case 'c':
8195                         printcur++;
8196                         break;
8197                 case 'l':
8198                         linkno = strtol(optarg, &endptr, 10);
8199                         if (*endptr != '\0') {
8200                                 fprintf(stderr,
8201                                         "%s fid2path: invalid linkno '%s'\n",
8202                                         progname, optarg);
8203                                 return CMD_HELP;
8204                         }
8205                         break;
8206                 case 'r':
8207                         recno = strtoll(optarg, &endptr, 10);
8208                         if (*endptr != '\0') {
8209                                 fprintf(stderr,
8210                                         "%s fid2path: invalid recno '%s'\n",
8211                                         progname, optarg);
8212                                 return CMD_HELP;
8213                         }
8214                         break;
8215                 default:
8216                         fprintf(stderr,
8217                                 "%s fid2path: unrecognized option '%s'\n",
8218                                 progname, argv[optind - 1]);
8219                         return CMD_HELP;
8220                 }
8221         }
8222
8223         if (argc < 3) {
8224                 fprintf(stderr,
8225                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
8226                         progname);
8227                 return CMD_HELP;
8228         }
8229
8230         device = argv[optind++];
8231         path = calloc(1, PATH_MAX);
8232         if (!path) {
8233                 rc = -errno;
8234                 fprintf(stderr,
8235                         "%s fid2path: cannot allocate memory for path: %s\n",
8236                         progname, strerror(-rc));
8237                 return rc;
8238         }
8239
8240         rc = 0;
8241         /* in case that device is not the mountpoint */
8242         if (device[0] == '/') {
8243                 rc = llapi_search_mounts(device, 0, mntdir, NULL);
8244                 if (rc == 0) {
8245                         rootpath = mntdir;
8246                 } else {
8247                         fprintf(stderr,
8248                                 "%s fid2path: %s has no mountpoint: %s\n",
8249                                 progname, device, strerror(-rc));
8250                         goto out;
8251                 }
8252         }
8253         while (optind < argc) {
8254                 fid = argv[optind++];
8255
8256                 lnktmp = (linkno >= 0) ? linkno : 0;
8257                 while (1) {
8258                         int oldtmp = lnktmp;
8259                         long long rectmp = recno;
8260                         int rc2;
8261
8262                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
8263                                              &rectmp, &lnktmp);
8264                         if (rc2 < 0) {
8265                                 fprintf(stderr,
8266                                         "%s fid2path: cannot find %s %s: %s\n",
8267                                         progname, device, fid,
8268                                         strerror(errno = -rc2));
8269                                 if (rc == 0)
8270                                         rc = rc2;
8271                                 break;
8272                         }
8273
8274                         if (printcur)
8275                                 fprintf(stdout, "%lld ", rectmp);
8276                         if (device[0] == '/') {
8277                                 fprintf(stdout, "%s", rootpath);
8278                                 if (rootpath[strlen(rootpath) - 1] != '/')
8279                                         fprintf(stdout, "/");
8280                         } else if (path[0] == '\0') {
8281                                 fprintf(stdout, "/");
8282                         }
8283                         fprintf(stdout, "%s\n", path);
8284
8285                         if (linkno >= 0)
8286                                 /* specified linkno */
8287                                 break;
8288                         if (oldtmp == lnktmp)
8289                                 /* no more links */
8290                                 break;
8291                 }
8292         }
8293 out:
8294         free(path);
8295         return rc;
8296 }
8297
8298 static int lfs_path2fid(int argc, char **argv)
8299 {
8300         struct option long_opts[] = {
8301                 { .val = 'p', .name = "parents", .has_arg = no_argument },
8302                 { .name = NULL } };
8303         char            **path;
8304         const char        short_opts[] = "p";
8305         const char       *sep = "";
8306         struct lu_fid     fid;
8307         int               rc = 0;
8308         bool              show_parents = false;
8309
8310         while ((rc = getopt_long(argc, argv, short_opts,
8311                                  long_opts, NULL)) != -1) {
8312                 switch (rc) {
8313                 case 'p':
8314                         show_parents = true;
8315                         break;
8316                 default:
8317                         fprintf(stderr,
8318                                 "%s path2fid: unrecognized option '%s'\n",
8319                                 progname, argv[optind - 1]);
8320                         return CMD_HELP;
8321                 }
8322         }
8323
8324         if (optind > argc - 1) {
8325                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
8326                         progname);
8327                 return CMD_HELP;
8328         } else if (optind < argc - 1) {
8329                 sep = ": ";
8330         }
8331
8332         rc = 0;
8333         for (path = argv + optind; *path != NULL; path++) {
8334                 int err = 0;
8335
8336                 if (!show_parents) {
8337                         err = llapi_path2fid(*path, &fid);
8338                         if (!err)
8339                                 printf("%s%s"DFID"\n",
8340                                        *sep != '\0' ? *path : "", sep,
8341                                        PFID(&fid));
8342                 } else {
8343                         char            name[NAME_MAX + 1];
8344                         unsigned int    linkno = 0;
8345
8346                         while ((err = llapi_path2parent(*path, linkno, &fid,
8347                                                 name, sizeof(name))) == 0) {
8348                                 if (*sep != '\0' && linkno == 0)
8349                                         printf("%s%s", *path, sep);
8350
8351                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
8352                                        PFID(&fid), name);
8353                                 linkno++;
8354                         }
8355
8356                         /* err == -ENODATA is end-of-loop */
8357                         if (linkno > 0 && err == -ENODATA) {
8358                                 printf("\n");
8359                                 err = 0;
8360                         }
8361                 }
8362
8363                 if (err) {
8364                         fprintf(stderr,
8365                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
8366                                 progname, show_parents ? "parent " : "", *path,
8367                                 strerror(-err));
8368                         if (rc == 0) {
8369                                 rc = err;
8370                                 errno = -err;
8371                         }
8372                 }
8373         }
8374
8375         return rc;
8376 }
8377
8378 #define MAX_ERRNO       4095
8379 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
8380
8381 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
8382 {
8383         int rc, rc2 = 0, k;
8384
8385         rc = llapi_rmfid(device, fa);
8386         if (rc) {
8387                 fprintf(stderr, "rmfid(): rc = %d\n", rc);
8388                 return rc;
8389         }
8390
8391         for (k = 0; k < fa->fa_nr; k++) {
8392                 rc = (__s32)fa->fa_fids[k].f_ver;
8393                 if (!IS_ERR_VALUE(rc))
8394                         continue;
8395                 if (!rc2 && rc)
8396                         rc2 = rc;
8397                 if (!rc)
8398                         continue;
8399                 fa->fa_fids[k].f_ver = 0;
8400                 fprintf(stderr, "rmfid("DFID"): rc = %d\n",
8401                         PFID(&fa->fa_fids[k]), rc);
8402         }
8403
8404         return rc2;
8405 }
8406
8407 static int lfs_rmfid(int argc, char **argv)
8408 {
8409         char *fidstr, *device;
8410         int rc = 0, rc2, nr;
8411         struct fid_array *fa;
8412
8413         if (optind > argc - 1) {
8414                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
8415                 return CMD_HELP;
8416         }
8417
8418         device = argv[optind++];
8419
8420         nr = argc - optind;
8421         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
8422         if (!fa)
8423                 return -ENOMEM;
8424
8425         fa->fa_nr = 0;
8426         rc = 0;
8427         while (optind < argc) {
8428                 int found;
8429
8430                 fidstr = argv[optind++];
8431                 while (*fidstr == '[')
8432                         fidstr++;
8433                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
8434                 if (found != 3) {
8435                         fprintf(stderr, "unrecognized FID: %s\n",
8436                                 argv[optind - 1]);
8437                         exit(1);
8438                 }
8439                 fa->fa_nr++;
8440                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
8441                         /* start another batch */
8442                         rc2 = lfs_rmfid_and_show_errors(device, fa);
8443                         if (rc2 && !rc)
8444                                 rc = rc2;
8445                         fa->fa_nr = 0;
8446                 }
8447         }
8448         if (fa->fa_nr) {
8449                 rc2 = lfs_rmfid_and_show_errors(device, fa);
8450                 if (rc2 && !rc)
8451                         rc = rc2;
8452         }
8453
8454         return rc;
8455 }
8456
8457 static int lfs_data_version(int argc, char **argv)
8458 {
8459         char *path;
8460         __u64 data_version;
8461         int fd;
8462         int rc;
8463         int c;
8464         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
8465
8466         if (argc < 2) {
8467                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8468                         progname);
8469                 return CMD_HELP;
8470         }
8471
8472         while ((c = getopt(argc, argv, "nrw")) != -1) {
8473                 switch (c) {
8474                 case 'n':
8475                         data_version_flags = 0;
8476                         break;
8477                 case 'r':
8478                         data_version_flags |= LL_DV_RD_FLUSH;
8479                         break;
8480                 case 'w':
8481                         data_version_flags |= LL_DV_WR_FLUSH;
8482                         break;
8483                 default:
8484                         fprintf(stderr,
8485                                 "%s data_version: unrecognized option '%s'\n",
8486                                 progname, argv[optind - 1]);
8487                         return CMD_HELP;
8488                 }
8489         }
8490         if (optind == argc) {
8491                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8492                         progname);
8493                 return CMD_HELP;
8494         }
8495
8496         path = argv[optind];
8497         fd = open(path, O_RDONLY);
8498         if (fd < 0) {
8499                 rc = -errno;
8500                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
8501                         progname, path, strerror(-rc));
8502                 return rc;
8503         }
8504
8505         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
8506         if (rc < 0)
8507                 fprintf(stderr,
8508                         "%s data_version: cannot get version for '%s': %s\n",
8509                         progname, path, strerror(-rc));
8510         else
8511                 printf("%ju" "\n", (uintmax_t)data_version);
8512
8513         close(fd);
8514         return rc;
8515 }
8516
8517 static int lfs_hsm_state(int argc, char **argv)
8518 {
8519         int rc;
8520         int i = 1;
8521         char *path;
8522         struct hsm_user_state hus;
8523
8524         if (argc < 2)
8525                 return CMD_HELP;
8526
8527         do {
8528                 path = argv[i];
8529
8530                 rc = llapi_hsm_state_get(path, &hus);
8531                 if (rc) {
8532                         fprintf(stderr, "can't get hsm state for %s: %s\n",
8533                                 path, strerror(errno = -rc));
8534                         return rc;
8535                 }
8536
8537                 /* Display path name and status flags */
8538                 printf("%s: (0x%08x)", path, hus.hus_states);
8539
8540                 if (hus.hus_states & HS_RELEASED)
8541                         printf(" released");
8542                 if (hus.hus_states & HS_EXISTS)
8543                         printf(" exists");
8544                 if (hus.hus_states & HS_DIRTY)
8545                         printf(" dirty");
8546                 if (hus.hus_states & HS_ARCHIVED)
8547                         printf(" archived");
8548                 /* Display user-settable flags */
8549                 if (hus.hus_states & HS_NORELEASE)
8550                         printf(" never_release");
8551                 if (hus.hus_states & HS_NOARCHIVE)
8552                         printf(" never_archive");
8553                 if (hus.hus_states & HS_LOST)
8554                         printf(" lost_from_hsm");
8555
8556                 if (hus.hus_archive_id != 0)
8557                         printf(", archive_id:%d", hus.hus_archive_id);
8558                 printf("\n");
8559
8560         } while (++i < argc);
8561
8562         return 0;
8563 }
8564
8565 #define LFS_HSM_SET   0
8566 #define LFS_HSM_CLEAR 1
8567
8568 /**
8569  * Generic function to set or clear HSM flags.
8570  * Used by hsm_set and hsm_clear.
8571  *
8572  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
8573  */
8574 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
8575 {
8576         struct option long_opts[] = {
8577         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
8578         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
8579         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
8580         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
8581         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
8582         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
8583         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
8584         { .name = NULL } };
8585         char short_opts[] = "lraAdei:";
8586         __u64 mask = 0;
8587         int c, rc;
8588         char *path;
8589         __u32 archive_id = 0;
8590         char *end = NULL;
8591
8592         if (argc < 3)
8593                 return CMD_HELP;
8594
8595         while ((c = getopt_long(argc, argv, short_opts,
8596                                 long_opts, NULL)) != -1) {
8597                 switch (c) {
8598                 case 'l':
8599                         mask |= HS_LOST;
8600                         break;
8601                 case 'a':
8602                         mask |= HS_NOARCHIVE;
8603                         break;
8604                 case 'A':
8605                         mask |= HS_ARCHIVED;
8606                         break;
8607                 case 'r':
8608                         mask |= HS_NORELEASE;
8609                         break;
8610                 case 'd':
8611                         mask |= HS_DIRTY;
8612                         break;
8613                 case 'e':
8614                         mask |= HS_EXISTS;
8615                         break;
8616                 case 'i':
8617                         archive_id = strtol(optarg, &end, 10);
8618                         if (*end != '\0') {
8619                                 fprintf(stderr, "invalid archive_id: '%s'\n",
8620                                         end);
8621                                 return CMD_HELP;
8622                         }
8623                         break;
8624                 case '?':
8625                         return CMD_HELP;
8626                 default:
8627                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8628                                 argv[0], argv[optind - 1]);
8629                         return CMD_HELP;
8630                 }
8631         }
8632
8633         /* User should have specified a flag */
8634         if (mask == 0)
8635                 return CMD_HELP;
8636
8637         while (optind < argc) {
8638                 path = argv[optind];
8639
8640                 /* If mode == 0, this means we apply the mask. */
8641                 if (mode == LFS_HSM_SET)
8642                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
8643                 else
8644                         rc = llapi_hsm_state_set(path, 0, mask, 0);
8645
8646                 if (rc != 0) {
8647                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
8648                                 path, strerror(errno = -rc));
8649                         return rc;
8650                 }
8651                 optind++;
8652         }
8653
8654         return 0;
8655 }
8656
8657 static int lfs_hsm_action(int argc, char **argv)
8658 {
8659         int                              rc;
8660         int                              i = 1;
8661         char                            *path;
8662         struct hsm_current_action        hca;
8663         struct hsm_extent                he;
8664         enum hsm_user_action             hua;
8665         enum hsm_progress_states         hps;
8666
8667         if (argc < 2)
8668                 return CMD_HELP;
8669
8670         do {
8671                 path = argv[i];
8672
8673                 rc = llapi_hsm_current_action(path, &hca);
8674                 if (rc) {
8675                         fprintf(stderr, "can't get hsm action for %s: %s\n",
8676                                 path, strerror(errno = -rc));
8677                         return rc;
8678                 }
8679                 he = hca.hca_location;
8680                 hua = hca.hca_action;
8681                 hps = hca.hca_state;
8682
8683                 printf("%s: %s", path, hsm_user_action2name(hua));
8684
8685                 /* Skip file without action */
8686                 if (hca.hca_action == HUA_NONE) {
8687                         printf("\n");
8688                         continue;
8689                 }
8690
8691                 printf(" %s ", hsm_progress_state2name(hps));
8692
8693                 if ((hps == HPS_RUNNING) &&
8694                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
8695                         printf("(%llu bytes moved)\n",
8696                                (unsigned long long)he.length);
8697                 else if ((he.offset + he.length) == LUSTRE_EOF)
8698                         printf("(from %llu to EOF)\n",
8699                                (unsigned long long)he.offset);
8700                 else
8701                         printf("(from %llu to %llu)\n",
8702                                (unsigned long long)he.offset,
8703                                (unsigned long long)(he.offset + he.length));
8704
8705         } while (++i < argc);
8706
8707         return 0;
8708 }
8709
8710 static int lfs_hsm_set(int argc, char **argv)
8711 {
8712         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
8713 }
8714
8715 static int lfs_hsm_clear(int argc, char **argv)
8716 {
8717         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
8718 }
8719
8720 /**
8721  * Check file state and return its fid, to be used by lfs_hsm_request().
8722  *
8723  * \param[in]     file      Path to file to check
8724  * \param[in,out] fid       Pointer to allocated lu_fid struct.
8725  * \param[in,out] last_dev  Pointer to last device id used.
8726  *
8727  * \return 0 on success.
8728  */
8729 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
8730                                 dev_t *last_dev)
8731 {
8732         struct stat     st;
8733         int             rc;
8734
8735         rc = lstat(file, &st);
8736         if (rc) {
8737                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
8738                 return -errno;
8739         }
8740         /*
8741          * Checking for regular file as archiving as posix copytool
8742          * rejects archiving files other than regular files
8743          */
8744         if (!S_ISREG(st.st_mode)) {
8745                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
8746                 return CMD_HELP;
8747         }
8748         /* A request should be ... */
8749         if (*last_dev != st.st_dev && *last_dev != 0) {
8750                 fprintf(stderr,
8751                         "All files should be on the same filesystem: %s\n",
8752                         file);
8753                 return -EINVAL;
8754         }
8755         *last_dev = st.st_dev;
8756
8757         rc = llapi_path2fid(file, fid);
8758         if (rc) {
8759                 fprintf(stderr, "Cannot read FID of %s: %s\n",
8760                         file, strerror(-rc));
8761                 return rc;
8762         }
8763         return 0;
8764 }
8765
8766 /* Fill an HSM HUR item with a given file name.
8767  *
8768  * If mntpath is set, then the filename is actually a FID, and no
8769  * lookup on the filesystem will be performed.
8770  *
8771  * \param[in]  hur         the user request to fill
8772  * \param[in]  idx         index of the item inside the HUR to fill
8773  * \param[in]  mntpath     mountpoint of Lustre
8774  * \param[in]  fname       filename (if mtnpath is NULL)
8775  *                         or FID (if mntpath is set)
8776  * \param[in]  last_dev    pointer to last device id used
8777  *
8778  * \retval 0 on success
8779  * \retval CMD_HELP or a negative errno on error
8780  */
8781 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
8782                          const char *mntpath, const char *fname,
8783                          dev_t *last_dev)
8784 {
8785         struct hsm_user_item *hui = &hur->hur_user_item[idx];
8786         int rc;
8787
8788         hui->hui_extent.length = -1;
8789
8790         if (mntpath) {
8791                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
8792                 if (rc)
8793                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
8794                                 fname);
8795         } else {
8796                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
8797         }
8798
8799         if (rc == 0)
8800                 hur->hur_request.hr_itemcount++;
8801
8802         return rc;
8803 }
8804
8805 static int lfs_hsm_request(int argc, char **argv, int action)
8806 {
8807         struct option long_opts[] = {
8808         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
8809         { .val = 'D',   .name = "data",         .has_arg = required_argument },
8810         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
8811         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
8812         { .name = NULL } };
8813         dev_t last_dev = 0;
8814         char short_opts[] = "l:D:a:m:";
8815         struct hsm_user_request *hur, *oldhur;
8816         int c, i;
8817         size_t len;
8818         int nbfile;
8819         char *line = NULL;
8820         char *filelist = NULL;
8821         char fullpath[PATH_MAX];
8822         char *opaque = NULL;
8823         int opaque_len = 0;
8824         int archive_id = 0;
8825         FILE *fp;
8826         int nbfile_alloc = 0;
8827         char *some_file = NULL;
8828         char *mntpath = NULL;
8829         int rc;
8830
8831         if (argc < 2)
8832                 return CMD_HELP;
8833
8834         while ((c = getopt_long(argc, argv, short_opts,
8835                                 long_opts, NULL)) != -1) {
8836                 switch (c) {
8837                 case 'l':
8838                         filelist = optarg;
8839                         break;
8840                 case 'D':
8841                         opaque = optarg;
8842                         break;
8843                 case 'a':
8844                         if (action != HUA_ARCHIVE &&
8845                             action != HUA_REMOVE) {
8846                                 fprintf(stderr,
8847                                         "error: -a is supported only when archiving or removing\n");
8848                                 return CMD_HELP;
8849                         }
8850                         archive_id = atoi(optarg);
8851                         break;
8852                 case 'm':
8853                         if (!some_file) {
8854                                 mntpath = optarg;
8855                                 some_file = strdup(optarg);
8856                         }
8857                         break;
8858                 case '?':
8859                         return CMD_HELP;
8860                 default:
8861                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8862                                 argv[0], argv[optind - 1]);
8863                         return CMD_HELP;
8864                 }
8865         }
8866
8867         /* All remaining args are files, so we have at least nbfile */
8868         nbfile = argc - optind;
8869
8870         if ((nbfile == 0) && (!filelist))
8871                 return CMD_HELP;
8872
8873         if (opaque)
8874                 opaque_len = strlen(opaque);
8875
8876         /*
8877          * Alloc the request structure with enough place to store all files
8878          * from command line.
8879          */
8880         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
8881         if (!hur) {
8882                 fprintf(stderr, "Cannot create the request: %s\n",
8883                         strerror(errno));
8884                 return errno;
8885         }
8886         nbfile_alloc = nbfile;
8887
8888         hur->hur_request.hr_action = action;
8889         hur->hur_request.hr_archive_id = archive_id;
8890         hur->hur_request.hr_flags = 0;
8891
8892         /* All remaining args are files, add them */
8893         if (nbfile != 0 && some_file == NULL)
8894                 some_file = strdup(argv[optind]);
8895
8896         for (i = 0; i < nbfile; i++) {
8897                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
8898                                    &last_dev);
8899                 if (rc)
8900                         goto out_free;
8901         }
8902
8903         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
8904
8905         /* If a filelist was specified, read the filelist from it. */
8906         if (filelist) {
8907                 fp = fopen(filelist, "r");
8908                 if (!fp) {
8909                         fprintf(stderr, "Cannot read the file list %s: %s\n",
8910                                 filelist, strerror(errno));
8911                         rc = -errno;
8912                         goto out_free;
8913                 }
8914
8915                 while ((rc = getline(&line, &len, fp)) != -1) {
8916                         /*
8917                          * If allocated buffer was too small, get something
8918                          * larger
8919                          */
8920                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
8921                                 ssize_t size;
8922
8923                                 nbfile_alloc = nbfile_alloc * 2 + 1;
8924                                 oldhur = hur;
8925                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
8926                                                                    opaque_len);
8927                                 if (!hur) {
8928                                         fprintf(stderr,
8929                                                 "hsm: cannot allocate the request: %s\n",
8930                                                 strerror(errno));
8931                                         hur = oldhur;
8932                                         rc = -errno;
8933                                         fclose(fp);
8934                                         goto out_free;
8935                                 }
8936                                 size = hur_len(oldhur);
8937                                 if (size < 0) {
8938                                         fprintf(stderr,
8939                                                 "hsm: cannot allocate %u files + %u bytes data\n",
8940                                                 oldhur->hur_request.hr_itemcount,
8941                                                 oldhur->hur_request.hr_data_len);
8942                                         free(hur);
8943                                         hur = oldhur;
8944                                         rc = -E2BIG;
8945                                         fclose(fp);
8946                                         goto out_free;
8947                                 }
8948                                 memcpy(hur, oldhur, size);
8949                                 free(oldhur);
8950                         }
8951
8952                         /* Chop CR */
8953                         if (line[strlen(line) - 1] == '\n')
8954                                 line[strlen(line) - 1] = '\0';
8955
8956                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
8957                                            mntpath, line, &last_dev);
8958                         if (rc) {
8959                                 fclose(fp);
8960                                 goto out_free;
8961                         }
8962
8963                         if (!some_file) {
8964                                 some_file = line;
8965                                 line = NULL;
8966                         }
8967                 }
8968
8969                 rc = fclose(fp);
8970                 free(line);
8971         }
8972
8973         /* If a --data was used, add it to the request */
8974         hur->hur_request.hr_data_len = opaque_len;
8975         if (opaque)
8976                 memcpy(hur_data(hur), opaque, opaque_len);
8977
8978         /* Send the HSM request */
8979         if (realpath(some_file, fullpath) == NULL) {
8980                 fprintf(stderr, "Could not find path '%s': %s\n",
8981                         some_file, strerror(errno));
8982         }
8983         rc = llapi_hsm_request(fullpath, hur);
8984         if (rc) {
8985                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
8986                         some_file, strerror(-rc));
8987                 goto out_free;
8988         }
8989
8990 out_free:
8991         free(some_file);
8992         free(hur);
8993         return rc;
8994 }
8995
8996 static int lfs_hsm_archive(int argc, char **argv)
8997 {
8998         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
8999 }
9000
9001 static int lfs_hsm_restore(int argc, char **argv)
9002 {
9003         return lfs_hsm_request(argc, argv, HUA_RESTORE);
9004 }
9005
9006 static int lfs_hsm_release(int argc, char **argv)
9007 {
9008         return lfs_hsm_request(argc, argv, HUA_RELEASE);
9009 }
9010
9011 static int lfs_hsm_remove(int argc, char **argv)
9012 {
9013         return lfs_hsm_request(argc, argv, HUA_REMOVE);
9014 }
9015
9016 static int lfs_hsm_cancel(int argc, char **argv)
9017 {
9018         return lfs_hsm_request(argc, argv, HUA_CANCEL);
9019 }
9020
9021 static int lfs_swap_layouts(int argc, char **argv)
9022 {
9023         if (argc != 3)
9024                 return CMD_HELP;
9025
9026         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
9027                                   SWAP_LAYOUTS_KEEP_MTIME |
9028                                   SWAP_LAYOUTS_KEEP_ATIME);
9029 }
9030
9031 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
9032
9033 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
9034
9035 int lfs_get_mode(const char *string)
9036 {
9037         enum lock_mode_user mode;
9038
9039         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
9040                 if (lock_mode_names[mode] == NULL)
9041                         continue;
9042                 if (strcmp(string, lock_mode_names[mode]) == 0)
9043                         return mode;
9044         }
9045
9046         return -EINVAL;
9047 }
9048
9049 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
9050 {
9051         enum lu_ladvise_type advice;
9052
9053         for (advice = 0;
9054              advice < ARRAY_SIZE(ladvise_names); advice++) {
9055                 if (ladvise_names[advice] == NULL)
9056                         continue;
9057                 if (strcmp(string, ladvise_names[advice]) == 0)
9058                         return advice;
9059         }
9060
9061         return LU_LADVISE_INVALID;
9062 }
9063
9064 static int lfs_ladvise(int argc, char **argv)
9065 {
9066         struct option long_opts[] = {
9067         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
9068         { .val = 'b',   .name = "background",   .has_arg = no_argument },
9069         { .val = 'e',   .name = "end",          .has_arg = required_argument },
9070         { .val = 'l',   .name = "length",       .has_arg = required_argument },
9071         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
9072         { .val = 's',   .name = "start",        .has_arg = required_argument },
9073         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
9074         { .name = NULL } };
9075         char                     short_opts[] = "a:be:l:m:s:u";
9076         int                      c;
9077         int                      rc = 0;
9078         const char              *path;
9079         int                      fd;
9080         struct llapi_lu_ladvise  advice;
9081         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
9082         unsigned long long       start = 0;
9083         unsigned long long       end = LUSTRE_EOF;
9084         unsigned long long       length = 0;
9085         unsigned long long       size_units;
9086         unsigned long long       flags = 0;
9087         int                      mode = 0;
9088
9089         optind = 0;
9090         while ((c = getopt_long(argc, argv, short_opts,
9091                                 long_opts, NULL)) != -1) {
9092                 switch (c) {
9093                 case 'a':
9094                         advice_type = lfs_get_ladvice(optarg);
9095                         if (advice_type == LU_LADVISE_INVALID) {
9096                                 fprintf(stderr,
9097                                         "%s: invalid advice type '%s'\n",
9098                                         argv[0], optarg);
9099                                 fprintf(stderr, "Valid types:");
9100
9101                                 for (advice_type = 0;
9102                                      advice_type < ARRAY_SIZE(ladvise_names);
9103                                      advice_type++) {
9104                                         if (ladvise_names[advice_type] == NULL)
9105                                                 continue;
9106                                         fprintf(stderr, " %s",
9107                                                 ladvise_names[advice_type]);
9108                                 }
9109                                 fprintf(stderr, "\n");
9110
9111                                 return CMD_HELP;
9112                         }
9113                         break;
9114                 case 'b':
9115                         flags |= LF_ASYNC;
9116                         break;
9117                 case 'u':
9118                         flags |= LF_UNSET;
9119                         break;
9120                 case 'e':
9121                         size_units = 1;
9122                         rc = llapi_parse_size(optarg, &end,
9123                                               &size_units, 0);
9124                         if (rc) {
9125                                 fprintf(stderr, "%s: bad end offset '%s'\n",
9126                                         argv[0], optarg);
9127                                 return CMD_HELP;
9128                         }
9129                         break;
9130                 case 's':
9131                         size_units = 1;
9132                         rc = llapi_parse_size(optarg, &start,
9133                                               &size_units, 0);
9134                         if (rc) {
9135                                 fprintf(stderr,
9136                                         "%s: bad start offset '%s'\n",
9137                                         argv[0], optarg);
9138                                 return CMD_HELP;
9139                         }
9140                         break;
9141                 case 'l':
9142                         size_units = 1;
9143                         rc = llapi_parse_size(optarg, &length,
9144                                               &size_units, 0);
9145                         if (rc) {
9146                                 fprintf(stderr, "%s: bad length '%s'\n",
9147                                         argv[0], optarg);
9148                                 return CMD_HELP;
9149                         }
9150                         break;
9151                 case 'm':
9152                         mode = lfs_get_mode(optarg);
9153                         if (mode < 0) {
9154                                 fprintf(stderr,
9155                                         "%s: bad mode '%s', valid modes are READ or WRITE\n",
9156                                         argv[0], optarg);
9157                                 return CMD_HELP;
9158                         }
9159                         break;
9160                 case '?':
9161                         return CMD_HELP;
9162                 default:
9163                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9164                                 argv[0], argv[optind - 1]);
9165                         return CMD_HELP;
9166                 }
9167         }
9168
9169         if (advice_type == LU_LADVISE_INVALID) {
9170                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
9171                 fprintf(stderr, "Valid types:");
9172                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
9173                      advice_type++) {
9174                         if (ladvise_names[advice_type] == NULL)
9175                                 continue;
9176                         fprintf(stderr, " %s", ladvise_names[advice_type]);
9177                 }
9178                 fprintf(stderr, "\n");
9179                 return CMD_HELP;
9180         }
9181
9182         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
9183                 fprintf(stderr,
9184                         "%s: Lock no expand advice is a per file descriptor advice, so when called from lfs, it does nothing.\n",
9185                         argv[0]);
9186                 return CMD_HELP;
9187         }
9188
9189         if (argc <= optind) {
9190                 fprintf(stderr, "%s: please give one or more file names\n",
9191                         argv[0]);
9192                 return CMD_HELP;
9193         }
9194
9195         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
9196                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
9197                         argv[0]);
9198                 return CMD_HELP;
9199         }
9200
9201         if (end == LUSTRE_EOF && length != 0)
9202                 end = start + length;
9203
9204         if (end <= start) {
9205                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
9206                         argv[0], start, end);
9207                 return CMD_HELP;
9208         }
9209
9210         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
9211                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
9212                         argv[0]);
9213                 return CMD_HELP;
9214         }
9215
9216         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
9217                 fprintf(stderr, "%s: mode is required with lockahead\n",
9218                         argv[0]);
9219                 return CMD_HELP;
9220         }
9221
9222         while (optind < argc) {
9223                 int rc2;
9224
9225                 path = argv[optind++];
9226
9227                 fd = open(path, O_RDONLY);
9228                 if (fd < 0) {
9229                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9230                                 argv[0], path, strerror(errno));
9231                         rc2 = -errno;
9232                         goto next;
9233                 }
9234
9235                 advice.lla_start = start;
9236                 advice.lla_end = end;
9237                 advice.lla_advice = advice_type;
9238                 advice.lla_value1 = 0;
9239                 advice.lla_value2 = 0;
9240                 advice.lla_value3 = 0;
9241                 advice.lla_value4 = 0;
9242                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
9243                         advice.lla_lockahead_mode = mode;
9244                         advice.lla_peradvice_flags = flags;
9245                 }
9246
9247                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
9248                 close(fd);
9249                 if (rc2 < 0) {
9250                         fprintf(stderr,
9251                                 "%s: cannot give advice '%s' to file '%s': %s\n",
9252                                 argv[0], ladvise_names[advice_type],
9253                                 path, strerror(errno));
9254
9255                         goto next;
9256                 }
9257
9258 next:
9259                 if (rc == 0 && rc2 < 0)
9260                         rc = rc2;
9261         }
9262         return rc;
9263 }
9264
9265 static const char *const heat_names[] = LU_HEAT_NAMES;
9266
9267 static int lfs_heat_get(int argc, char **argv)
9268 {
9269         struct lu_heat *heat;
9270         int rc = 0, rc2;
9271         char *path;
9272         int fd;
9273         int i;
9274
9275         if (argc <= 1)
9276                 return CMD_HELP;
9277
9278         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
9279         if (!heat) {
9280                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
9281                 return -ENOMEM;
9282         }
9283
9284         optind = 1;
9285         while (optind < argc) {
9286                 path = argv[optind++];
9287
9288                 fd = open(path, O_RDONLY);
9289                 if (fd < 0) {
9290                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9291                                 argv[0], path, strerror(errno));
9292                         rc2 = -errno;
9293                         goto next;
9294                 }
9295
9296                 heat->lh_count = OBD_HEAT_COUNT;
9297                 rc2 = llapi_heat_get(fd, heat);
9298                 close(fd);
9299                 if (rc2 < 0) {
9300                         fprintf(stderr,
9301                                 "%s: cannot get heat of file '%s': %s\n",
9302                                 argv[0], path, strerror(errno));
9303                         goto next;
9304                 }
9305
9306                 printf("flags: %x\n", heat->lh_flags);
9307                 for (i = 0; i < heat->lh_count; i++)
9308                         printf("%s: %llu\n", heat_names[i],
9309                                (unsigned long long)heat->lh_heat[i]);
9310 next:
9311                 if (rc == 0 && rc2 < 0)
9312                         rc = rc2;
9313         }
9314
9315         free(heat);
9316         return rc;
9317 }
9318
9319 static int lfs_heat_set(int argc, char **argv)
9320 {
9321         struct option long_opts[] = {
9322         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
9323         { .val = 'o',   .name = "off",          .has_arg = no_argument },
9324         { .val = 'O',   .name = "on",           .has_arg = no_argument },
9325         { .name = NULL } };
9326         enum lu_heat_flag flags = 0;
9327         int rc = 0, rc2;
9328         char *path;
9329         int fd;
9330         int c;
9331
9332         if (argc <= 1)
9333                 return CMD_HELP;
9334
9335         optind = 0;
9336         while ((c = getopt_long(argc, argv, "coO", long_opts, NULL)) != -1) {
9337                 switch (c) {
9338                 case 'c':
9339                         flags |= LU_HEAT_FLAG_CLEAR;
9340                         break;
9341                 case 'o':
9342                         flags |= LU_HEAT_FLAG_CLEAR;
9343                         flags |= LU_HEAT_FLAG_OFF;
9344                         break;
9345                 case 'O':
9346                         flags &= ~LU_HEAT_FLAG_OFF;
9347                         break;
9348                 case '?':
9349                         return CMD_HELP;
9350                 default:
9351                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9352                                 argv[0], argv[optind - 1]);
9353                         return CMD_HELP;
9354                 }
9355         }
9356
9357         if (argc <= optind) {
9358                 fprintf(stderr, "%s: please give one or more file names\n",
9359                         argv[0]);
9360                 return CMD_HELP;
9361         }
9362
9363         while (optind < argc) {
9364                 path = argv[optind++];
9365
9366                 fd = open(path, O_RDONLY);
9367                 if (fd < 0) {
9368                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9369                                 argv[0], path, strerror(errno));
9370                         rc2 = -errno;
9371                         goto next;
9372                 }
9373
9374                 rc2 = llapi_heat_set(fd, flags);
9375                 close(fd);
9376                 if (rc2 < 0) {
9377                         fprintf(stderr,
9378                                 "%s: cannot setflags heat of file '%s': %s\n",
9379                                 argv[0], path, strerror(errno));
9380                         goto next;
9381                 }
9382 next:
9383                 if (rc == 0 && rc2 < 0)
9384                         rc = rc2;
9385         }
9386         return rc;
9387 }
9388
9389 /**
9390  * The input string contains a comma delimited list of component ids and
9391  * ranges, for example "1,2-4,7".
9392  */
9393 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
9394 {
9395         bool end_of_loop = false;
9396         char *ptr = NULL;
9397         int nr = 0;
9398         int rc;
9399
9400         if (!arg)
9401                 return -EINVAL;
9402
9403         while (!end_of_loop) {
9404                 int start_index;
9405                 int end_index;
9406                 int i;
9407                 char *endptr = NULL;
9408
9409                 rc = -EINVAL;
9410                 ptr = strchrnul(arg, ',');
9411                 end_of_loop = *ptr == '\0';
9412                 *ptr = '\0';
9413
9414                 start_index = strtol(arg, &endptr, 0);
9415                 if (endptr == arg) /* no data at all */
9416                         break;
9417                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
9418                         break;
9419                 if (start_index < 0)
9420                         break;
9421
9422                 end_index = start_index;
9423                 if (*endptr == '-') {
9424                         end_index = strtol(endptr + 1, &endptr, 0);
9425                         if (*endptr != '\0')
9426                                 break;
9427                         if (end_index < start_index)
9428                                 break;
9429                 }
9430
9431                 for (i = start_index; i <= end_index && size > 0; i++) {
9432                         int j;
9433
9434                         /* remove duplicate */
9435                         for (j = 0; j < nr; j++) {
9436                                 if (ids[j] == i)
9437                                         break;
9438                         }
9439                         if (j == nr) { /* no duplicate */
9440                                 ids[nr++] = i;
9441                                 --size;
9442                         }
9443                 }
9444
9445                 if (size == 0 && i < end_index)
9446                         break;
9447
9448                 *ptr = ',';
9449                 arg = ++ptr;
9450                 rc = 0;
9451         }
9452         if (!end_of_loop && ptr)
9453                 *ptr = ',';
9454
9455         return rc < 0 ? rc : nr;
9456 }
9457
9458 /**
9459  * struct verify_mirror_id - Mirror id to be verified.
9460  * @mirror_id:   A specified mirror id.
9461  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
9462  */
9463 struct verify_mirror_id {
9464         __u16 mirror_id;
9465         bool is_valid_id;
9466 };
9467
9468 /**
9469  * compare_mirror_ids() - Compare mirror ids.
9470  * @layout: Mirror component list.
9471  * @cbdata: Callback data in verify_mirror_id structure.
9472  *
9473  * This is a callback function called by llapi_layout_comp_iterate()
9474  * to compare the specified mirror id with the one in the current
9475  * component of @layout. If they are the same, then the specified
9476  * mirror id is valid.
9477  *
9478  * Return: a negative error code on failure or
9479  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
9480  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
9481  */
9482 static inline
9483 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
9484 {
9485         struct verify_mirror_id *mirror_id_cbdata =
9486                                  (struct verify_mirror_id *)cbdata;
9487         uint32_t mirror_id;
9488         int rc = 0;
9489
9490         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9491         if (rc < 0) {
9492                 rc = -errno;
9493                 fprintf(stderr,
9494                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9495                         progname, strerror(errno));
9496                 return rc;
9497         }
9498
9499         if (mirror_id_cbdata->mirror_id == mirror_id) {
9500                 mirror_id_cbdata->is_valid_id = true;
9501                 return LLAPI_LAYOUT_ITER_STOP;
9502         }
9503
9504         return LLAPI_LAYOUT_ITER_CONT;
9505 }
9506
9507 /**
9508  * verify_mirror_ids() - Verify specified mirror ids.
9509  * @fname:      Mirrored file name.
9510  * @mirror_ids: Specified mirror ids to be verified.
9511  * @ids_nr:     Number of specified mirror ids.
9512  *
9513  * This function verifies that specified @mirror_ids are valid
9514  * in the mirrored file @fname.
9515  *
9516  * Return: 0 on success or a negative error code on failure.
9517  */
9518 static inline
9519 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
9520 {
9521         struct llapi_layout *layout = NULL;
9522         struct verify_mirror_id mirror_id_cbdata = { 0 };
9523         struct stat stbuf;
9524         uint32_t flr_state;
9525         int i;
9526         int fd;
9527         int rc = 0;
9528         int rc2 = 0;
9529
9530         if (ids_nr <= 0)
9531                 return -EINVAL;
9532
9533         if (stat(fname, &stbuf) < 0) {
9534                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9535                         progname, fname, strerror(errno));
9536                 rc = -errno;
9537                 goto error;
9538         }
9539
9540         if (!S_ISREG(stbuf.st_mode)) {
9541                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9542                         progname, fname);
9543                 rc = -EINVAL;
9544                 goto error;
9545         }
9546
9547         fd = open(fname, O_DIRECT | O_RDONLY);
9548         if (fd < 0) {
9549                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9550                         progname, fname, strerror(errno));
9551                 rc = -errno;
9552                 goto error;
9553         }
9554
9555         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
9556         if (rc < 0) {
9557                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
9558                         progname, fname, strerror(errno));
9559                 goto close_fd;
9560         }
9561
9562         layout = llapi_layout_get_by_fd(fd, 0);
9563         if (!layout) {
9564                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9565                         progname, fname, strerror(errno));
9566                 rc = -errno;
9567                 llapi_lease_release(fd);
9568                 goto close_fd;
9569         }
9570
9571         rc = llapi_layout_flags_get(layout, &flr_state);
9572         if (rc < 0) {
9573                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9574                         progname, fname, strerror(errno));
9575                 rc = -errno;
9576                 goto free_layout;
9577         }
9578
9579         flr_state &= LCM_FL_FLR_MASK;
9580         switch (flr_state) {
9581         case LCM_FL_NONE:
9582                 rc = -EINVAL;
9583                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
9584                         progname, fname, llapi_layout_flags_string(flr_state));
9585                 goto free_layout;
9586         default:
9587                 break;
9588         }
9589
9590         rc2 = 0;
9591         for (i = 0; i < ids_nr; i++) {
9592                 mirror_id_cbdata.mirror_id = mirror_ids[i];
9593                 mirror_id_cbdata.is_valid_id = false;
9594
9595                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
9596                                                &mirror_id_cbdata);
9597                 if (rc < 0) {
9598                         rc = -errno;
9599                         fprintf(stderr,
9600                                 "%s: '%s' failed to verify mirror id: %u.\n",
9601                                 progname, fname, mirror_ids[i]);
9602                         goto free_layout;
9603                 }
9604
9605                 if (!mirror_id_cbdata.is_valid_id) {
9606                         rc2 = -EINVAL;
9607                         fprintf(stderr,
9608                                 "%s: '%s' invalid specified mirror id: %u.\n",
9609                                 progname, fname, mirror_ids[i]);
9610                 }
9611         }
9612         rc = rc2;
9613
9614 free_layout:
9615         llapi_layout_free(layout);
9616         llapi_lease_release(fd);
9617 close_fd:
9618         close(fd);
9619 error:
9620         return rc;
9621 }
9622
9623 static inline
9624 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
9625                            __u16 *mirror_ids, int ids_nr)
9626 {
9627         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9628         struct llapi_layout *layout;
9629         struct stat stbuf;
9630         uint32_t flr_state;
9631         uint64_t start;
9632         uint64_t end;
9633         int comp_size = 0;
9634         int idx;
9635         int fd;
9636         int rc;
9637         int rc2;
9638
9639         if (stat(fname, &stbuf) < 0) {
9640                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9641                         progname, fname, strerror(errno));
9642                 rc = -errno;
9643                 goto error;
9644         }
9645         if (!S_ISREG(stbuf.st_mode)) {
9646                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9647                         progname, fname);
9648                 rc = -EINVAL;
9649                 goto error;
9650         }
9651
9652         fd = open(fname, O_DIRECT | O_RDWR);
9653         if (fd < 0) {
9654                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9655                         progname, fname, strerror(errno));
9656                 rc = -errno;
9657                 goto error;
9658         }
9659
9660         layout = llapi_layout_get_by_fd(fd, 0);
9661         if (!layout) {
9662                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9663                         progname, fname, strerror(errno));
9664                 rc = -errno;
9665                 goto close_fd;
9666         }
9667
9668         rc = llapi_layout_flags_get(layout, &flr_state);
9669         if (rc) {
9670                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9671                         progname, fname, strerror(errno));
9672                 rc = -errno;
9673                 goto free_layout;
9674         }
9675
9676         flr_state &= LCM_FL_FLR_MASK;
9677         if (flr_state == LCM_FL_NONE) {
9678                 rc = -EINVAL;
9679                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
9680                         progname, fname);
9681                 goto free_layout;
9682         }
9683
9684         /* get stale component info */
9685         comp_size = llapi_mirror_find_stale(layout, comp_array,
9686                                             ARRAY_SIZE(comp_array),
9687                                             mirror_ids, ids_nr);
9688         if (comp_size <= 0) {
9689                 rc = comp_size;
9690                 goto free_layout;
9691         }
9692
9693         ioc->lil_mode = LL_LEASE_WRLCK;
9694         ioc->lil_flags = LL_LEASE_RESYNC;
9695         rc = llapi_lease_set(fd, ioc);
9696         if (rc < 0) {
9697                 if (rc == -EALREADY)
9698                         rc = 0;
9699                 else
9700                         fprintf(stderr,
9701                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
9702                                 progname, fname, strerror(-rc));
9703                 goto free_layout;
9704         }
9705
9706         /* get the read range [start, end) */
9707         start = comp_array[0].lrc_start;
9708         end = comp_array[0].lrc_end;
9709         for (idx = 1; idx < comp_size; idx++) {
9710                 if (comp_array[idx].lrc_start < start)
9711                         start = comp_array[idx].lrc_start;
9712                 if (end < comp_array[idx].lrc_end)
9713                         end = comp_array[idx].lrc_end;
9714         }
9715
9716         rc = llapi_lease_check(fd);
9717         if (rc != LL_LEASE_WRLCK) {
9718                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
9719                         progname, fname);
9720                 goto free_layout;
9721         }
9722
9723         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
9724                                       start, end);
9725         if (rc < 0)
9726                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
9727                         progname, fname, strerror(-rc));
9728
9729         /* need to do the lease unlock even resync fails */
9730         ioc->lil_mode = LL_LEASE_UNLCK;
9731         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
9732         ioc->lil_count = 0;
9733         for (idx = 0; idx < comp_size; idx++) {
9734                 if (comp_array[idx].lrc_synced) {
9735                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
9736                         ioc->lil_count++;
9737                 }
9738         }
9739
9740         rc2 = llapi_lease_set(fd, ioc);
9741         /**
9742          * llapi_lease_set returns lease mode when it request to unlock
9743          * the lease lock.
9744          */
9745         if (rc2 <= 0) {
9746                 /* rc2 == 0 means lost lease lock */
9747                 if (rc2 == 0 && rc == 0)
9748                         rc = -EBUSY;
9749                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
9750                         progname, fname,
9751                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
9752         }
9753
9754 free_layout:
9755         llapi_layout_free(layout);
9756 close_fd:
9757         close(fd);
9758 error:
9759         return rc;
9760 }
9761
9762 static inline int lfs_mirror_resync(int argc, char **argv)
9763 {
9764         struct ll_ioc_lease *ioc = NULL;
9765         __u16 mirror_ids[128] = { 0 };
9766         int ids_nr = 0;
9767         int c;
9768         int rc = 0;
9769
9770         struct option long_opts[] = {
9771         { .val = 'o',   .name = "only",         .has_arg = required_argument },
9772         { .name = NULL } };
9773
9774         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
9775                 switch (c) {
9776                 case 'o':
9777                         rc = parse_mirror_ids(mirror_ids,
9778                                         sizeof(mirror_ids) / sizeof(__u16),
9779                                         optarg);
9780                         if (rc < 0) {
9781                                 fprintf(stderr,
9782                                         "%s: bad mirror ids '%s'.\n",
9783                                         argv[0], optarg);
9784                                 goto error;
9785                         }
9786                         ids_nr = rc;
9787                         break;
9788                 default:
9789                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
9790                                 argv[0], argv[optind - 1]);
9791                         rc = -EINVAL;
9792                         goto error;
9793                 }
9794         }
9795
9796         if (argc == optind) {
9797                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
9798                 rc = CMD_HELP;
9799                 goto error;
9800         }
9801
9802         if (ids_nr > 0 && argc > optind + 1) {
9803                 fprintf(stderr,
9804                     "%s: option '--only' cannot be used upon multiple files.\n",
9805                         argv[0]);
9806                 rc = CMD_HELP;
9807                 goto error;
9808         }
9809
9810         if (ids_nr > 0) {
9811                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
9812                 if (rc < 0)
9813                         goto error;
9814         }
9815
9816         /* set the lease on the file */
9817         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9818         if (!ioc) {
9819                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
9820                         argv[0], strerror(errno));
9821                 rc = -errno;
9822                 goto error;
9823         }
9824
9825         for (; optind < argc; optind++) {
9826                 rc = lfs_mirror_resync_file(argv[optind], ioc,
9827                                             mirror_ids, ids_nr);
9828                 /* ignore previous file's error, continue with next file */
9829
9830                 /* reset ioc */
9831                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
9832         }
9833
9834         free(ioc);
9835 error:
9836         return rc;
9837 }
9838
9839 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
9840 {
9841         struct llapi_layout *layout;
9842         int rc;
9843
9844         layout = llapi_layout_get_by_fd(fd, 0);
9845         if (!layout) {
9846                 fprintf(stderr, "could not get layout.\n");
9847                 return  -EINVAL;
9848         }
9849
9850         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
9851         if (rc < 0) {
9852                 fprintf(stderr, "failed to iterate layout\n");
9853                 llapi_layout_free(layout);
9854
9855                 return rc;
9856         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
9857                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
9858                 llapi_layout_free(layout);
9859
9860                 return -EINVAL;
9861         }
9862         llapi_layout_free(layout);
9863
9864         return 0;
9865 }
9866
9867 /**
9868  * Check whether two files are the same file
9869  * \retval      0  same file
9870  * \retval      1  not the same file
9871  * \retval      <0 error code
9872  */
9873 static inline int check_same_file(int fd, const char *f2)
9874 {
9875         struct stat stbuf1;
9876         struct stat stbuf2;
9877
9878         if (fstat(fd, &stbuf1) < 0)
9879                 return -errno;
9880
9881         if (stat(f2, &stbuf2) < 0)
9882                 return 1;
9883
9884         if (stbuf1.st_rdev == stbuf2.st_rdev &&
9885             stbuf1.st_ino == stbuf2.st_ino)
9886                 return 0;
9887
9888         return 1;
9889 }
9890
9891 static inline int lfs_mirror_read(int argc, char **argv)
9892 {
9893         int rc = CMD_HELP;
9894         __u16 mirror_id = 0;
9895         const char *outfile = NULL;
9896         char *fname;
9897         int fd = 0;
9898         int outfd;
9899         int c;
9900         void *buf;
9901         const size_t buflen = 4 << 20;
9902         off_t pos;
9903         struct option long_opts[] = {
9904         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
9905         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
9906         { .name = NULL } };
9907
9908         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
9909                 char *end;
9910
9911                 switch (c) {
9912                 case 'N':
9913                         mirror_id = strtoul(optarg, &end, 0);
9914                         if (*end != '\0' || mirror_id == 0) {
9915                                 fprintf(stderr,
9916                                         "%s %s: invalid mirror ID '%s'\n",
9917                                         progname, argv[0], optarg);
9918                                 return rc;
9919                         }
9920                         break;
9921                 case 'o':
9922                         outfile = optarg;
9923                         break;
9924                 default:
9925                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9926                                 progname, argv[optind - 1]);
9927                         return -EINVAL;
9928                 }
9929         }
9930
9931         if (argc == optind) {
9932                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9933                         progname, argv[0]);
9934                 return rc;
9935         } else if (argc > optind + 1) {
9936                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9937                 return rc;
9938         }
9939
9940         if (mirror_id == 0) {
9941                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9942                         progname, argv[0]);
9943                 return rc;
9944         }
9945
9946         /* open mirror file */
9947         fname = argv[optind];
9948         fd = open(fname, O_DIRECT | O_RDONLY);
9949         if (fd < 0) {
9950                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9951                         progname, argv[0], fname, strerror(errno));
9952                 return rc;
9953         }
9954
9955         /* verify mirror id */
9956         rc = verify_mirror_id_by_fd(fd, mirror_id);
9957         if (rc) {
9958                 fprintf(stderr,
9959                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9960                         progname, argv[0], mirror_id, fname);
9961                 goto close_fd;
9962         }
9963
9964         /* open output file - O_EXCL ensures output is not the same as input */
9965         if (outfile) {
9966                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
9967                 if (outfd < 0) {
9968                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
9969                                 progname, argv[0], outfile, strerror(errno));
9970                         rc = -errno;
9971                         goto close_fd;
9972                 }
9973         } else {
9974                 outfd = STDOUT_FILENO;
9975         }
9976
9977         /* allocate buffer */
9978         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
9979         if (rc) {
9980                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9981                                 progname, argv[0], rc);
9982                 goto close_outfd;
9983         }
9984
9985         pos = 0;
9986         while (1) {
9987                 ssize_t bytes_read;
9988                 ssize_t written = 0;
9989
9990                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
9991                 if (bytes_read < 0) {
9992                         rc = bytes_read;
9993                         fprintf(stderr,
9994                                 "%s %s: fail to read data from mirror %u: %s\n",
9995                                 progname, argv[0], mirror_id, strerror(-rc));
9996                         goto free_buf;
9997                 }
9998
9999                 /* EOF reached */
10000                 if (bytes_read == 0)
10001                         break;
10002
10003                 while (written < bytes_read) {
10004                         ssize_t written2;
10005
10006                         written2 = write(outfd, buf + written,
10007                                          bytes_read - written);
10008                         if (written2 < 0) {
10009                                 fprintf(stderr,
10010                                         "%s %s: fail to write %s: %s\n",
10011                                         progname, argv[0], outfile ? : "STDOUT",
10012                                         strerror(errno));
10013                                 rc = -errno;
10014                                 goto free_buf;
10015                         }
10016                         written += written2;
10017                 }
10018
10019                 if (written != bytes_read) {
10020                         fprintf(stderr,
10021                 "%s %s: written %ld bytes does not match with %ld read.\n",
10022                                 progname, argv[0], written, bytes_read);
10023                         rc = -EIO;
10024                         goto free_buf;
10025                 }
10026
10027                 pos += bytes_read;
10028         }
10029
10030         fsync(outfd);
10031         rc = 0;
10032
10033 free_buf:
10034         free(buf);
10035 close_outfd:
10036         if (outfile)
10037                 close(outfd);
10038 close_fd:
10039         close(fd);
10040
10041         return rc;
10042 }
10043
10044 static inline int lfs_mirror_write(int argc, char **argv)
10045 {
10046         int rc = CMD_HELP;
10047         __u16 mirror_id = 0;
10048         const char *inputfile = NULL;
10049         char *fname;
10050         int fd = 0;
10051         int inputfd;
10052         int c;
10053         void *buf;
10054         const size_t buflen = 4 << 20;
10055         off_t pos;
10056         size_t page_size = sysconf(_SC_PAGESIZE);
10057         struct ll_ioc_lease_id ioc;
10058
10059         struct option long_opts[] = {
10060         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10061         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
10062         { .name = NULL } };
10063
10064         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
10065                 char *end;
10066
10067                 switch (c) {
10068                 case 'N':
10069                         mirror_id = strtoul(optarg, &end, 0);
10070                         if (*end != '\0' || mirror_id == 0) {
10071                                 fprintf(stderr,
10072                                         "%s %s: invalid mirror ID '%s'\n",
10073                                         progname, argv[0], optarg);
10074                                 return rc;
10075                         }
10076                         break;
10077                 case 'i':
10078                         inputfile = optarg;
10079                         break;
10080                 default:
10081                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10082                                 progname, argv[optind - 1]);
10083                         return -EINVAL;
10084                 }
10085         }
10086
10087         if (argc == optind) {
10088                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10089                         progname, argv[0]);
10090                 return rc;
10091         } else if (argc > optind + 1) {
10092                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10093                 return rc;
10094         }
10095
10096         if (mirror_id == 0) {
10097                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
10098                         progname, argv[0]);
10099                 return rc;
10100         }
10101
10102         /* open mirror file */
10103         fname = argv[optind];
10104         fd = open(fname, O_DIRECT | O_WRONLY);
10105         if (fd < 0) {
10106                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10107                         progname, argv[0], fname, strerror(errno));
10108                 return rc;
10109         }
10110
10111         /* verify mirror id */
10112         rc = verify_mirror_id_by_fd(fd, mirror_id);
10113         if (rc) {
10114                 fprintf(stderr,
10115                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10116                         progname, argv[0], mirror_id, fname);
10117                 goto close_fd;
10118         }
10119
10120         /* open input file */
10121         if (inputfile) {
10122                 rc = check_same_file(fd, inputfile);
10123                 if (rc == 0) {
10124                         fprintf(stderr,
10125                         "%s %s: input file cannot be the mirrored file\n",
10126                                 progname, argv[0]);
10127                         goto close_fd;
10128                 }
10129                 if (rc < 0)
10130                         goto close_fd;
10131
10132                 inputfd = open(inputfile, O_RDONLY, 0644);
10133                 if (inputfd < 0) {
10134                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
10135                                 progname, argv[0], inputfile, strerror(errno));
10136                         rc = -errno;
10137                         goto close_fd;
10138                 }
10139         } else {
10140                 inputfd = STDIN_FILENO;
10141         }
10142
10143         /* allocate buffer */
10144         rc = posix_memalign(&buf, page_size, buflen);
10145         if (rc) {
10146                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
10147                         progname, argv[0], rc);
10148                 goto close_inputfd;
10149         }
10150
10151         /* prepare target mirror components instantiation */
10152         ioc.lil_mode = LL_LEASE_WRLCK;
10153         ioc.lil_flags = LL_LEASE_RESYNC;
10154         ioc.lil_mirror_id = mirror_id;
10155         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
10156         if (rc < 0) {
10157                 fprintf(stderr,
10158                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
10159                         progname, argv[0], fname, strerror(errno));
10160                 goto free_buf;
10161         }
10162
10163         pos = 0;
10164         while (1) {
10165                 ssize_t bytes_read;
10166                 ssize_t written;
10167                 size_t to_write;
10168
10169                 rc = llapi_lease_check(fd);
10170                 if (rc != LL_LEASE_WRLCK) {
10171                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
10172                                 progname, argv[0], fname);
10173                         goto free_buf;
10174                 }
10175
10176                 bytes_read = read(inputfd, buf, buflen);
10177                 if (bytes_read < 0) {
10178                         rc = bytes_read;
10179                         fprintf(stderr,
10180                                 "%s %s: fail to read data from '%s': %s\n",
10181                                 progname, argv[0], inputfile ? : "STDIN",
10182                                 strerror(errno));
10183                         rc = -errno;
10184                         goto free_buf;
10185                 }
10186
10187                 /* EOF reached */
10188                 if (bytes_read == 0)
10189                         break;
10190
10191                 /* round up to page align to make direct IO happy. */
10192                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
10193
10194                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
10195                                              pos);
10196                 if (written < 0) {
10197                         rc = written;
10198                         fprintf(stderr,
10199                               "%s %s: fail to write to mirror %u: %s\n",
10200                                 progname, argv[0], mirror_id,
10201                                 strerror(-rc));
10202                         goto free_buf;
10203                 }
10204
10205                 pos += bytes_read;
10206         }
10207
10208         if (pos & (page_size - 1)) {
10209                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
10210                 if (rc < 0)
10211                         goto free_buf;
10212         }
10213
10214         ioc.lil_mode = LL_LEASE_UNLCK;
10215         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
10216         ioc.lil_count = 0;
10217         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
10218         if (rc <= 0) {
10219                 if (rc == 0)
10220                         rc = -EBUSY;
10221                 fprintf(stderr,
10222                         "%s %s: release lease lock of '%s' failed: %s\n",
10223                         progname, argv[0], fname, strerror(errno));
10224                 goto free_buf;
10225         }
10226
10227         rc = 0;
10228
10229 free_buf:
10230         free(buf);
10231 close_inputfd:
10232         if (inputfile)
10233                 close(inputfd);
10234 close_fd:
10235         close(fd);
10236
10237         return rc;
10238 }
10239
10240 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
10241 {
10242         struct llapi_layout *layout;
10243         struct collect_ids_data cid = { .cid_ids = ids,
10244                                         .cid_count = 0,
10245                                         .cid_exclude = exclude_id, };
10246         int rc;
10247
10248         layout = llapi_layout_get_by_fd(fd, 0);
10249         if (!layout) {
10250                 fprintf(stderr, "could not get layout\n");
10251                 return -EINVAL;
10252         }
10253
10254         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
10255         if (rc < 0) {
10256                 fprintf(stderr, "failed to iterate layout\n");
10257                 llapi_layout_free(layout);
10258
10259                 return rc;
10260         }
10261         llapi_layout_free(layout);
10262
10263         return cid.cid_count;
10264 }
10265
10266 static inline int lfs_mirror_copy(int argc, char **argv)
10267 {
10268         int rc = CMD_HELP;
10269         __u16 read_mirror_id = 0;
10270         __u16 ids[128] = { 0 };
10271         int count = 0;
10272         struct llapi_layout *layout = NULL;
10273         struct llapi_resync_comp comp_array[1024] = { { 0 } };
10274         int comp_size = 0;
10275         char *fname;
10276         int fd = 0;
10277         int c;
10278         int i;
10279         ssize_t copied;
10280         struct ll_ioc_lease *ioc = NULL;
10281         struct ll_ioc_lease_id *resync_ioc;
10282
10283         struct option long_opts[] = {
10284         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
10285         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
10286         { .name = NULL } };
10287
10288         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
10289                 char *end;
10290
10291                 switch (c) {
10292                 case 'i':
10293                         read_mirror_id = strtoul(optarg, &end, 0);
10294                         if (*end != '\0' || read_mirror_id == 0) {
10295                                 fprintf(stderr,
10296                                         "%s %s: invalid read mirror ID '%s'\n",
10297                                         progname, argv[0], optarg);
10298                                 return rc;
10299                         }
10300                         break;
10301                 case 'o':
10302                         if (!strcmp(optarg, "-1")) {
10303                                 /* specify all other mirrors */
10304                                 ids[0] = (__u16)-1;
10305                                 count = 1;
10306                         } else {
10307                                 count = parse_mirror_ids((__u16 *)ids,
10308                                                          ARRAY_SIZE(ids),
10309                                                          optarg);
10310                                 if (count < 0)
10311                                         return rc;
10312                         }
10313                         break;
10314                 default:
10315                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10316                                 progname, argv[optind - 1]);
10317                         return -EINVAL;
10318                 }
10319         }
10320
10321         if (argc == optind) {
10322                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10323                         progname, argv[0]);
10324                 return rc;
10325         } else if (argc > optind + 1) {
10326                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10327                 return rc;
10328         }
10329
10330         if (read_mirror_id == 0) {
10331                 fprintf(stderr,
10332                         "%s %s: no valid read mirror ID %d is provided\n",
10333                         progname, argv[0], read_mirror_id);
10334                 return rc;
10335         }
10336
10337         if (count == 0) {
10338                 fprintf(stderr,
10339                         "%s %s: no write mirror ID is provided\n",
10340                         progname, argv[0]);
10341                 return rc;
10342         }
10343
10344         for (i = 0; i < count; i++) {
10345                 if (read_mirror_id == ids[i]) {
10346                         fprintf(stderr,
10347                         "%s %s: read and write mirror ID cannot be the same\n",
10348                                 progname, argv[0]);
10349                         return rc;
10350                 }
10351         }
10352
10353         /* open mirror file */
10354         fname = argv[optind];
10355
10356         fd = open(fname, O_DIRECT | O_RDWR);
10357         if (fd < 0) {
10358                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10359                         progname, argv[0], fname, strerror(errno));
10360                 return rc;
10361         }
10362
10363         /* write to all other mirrors */
10364         if (ids[0] == (__u16)-1) {
10365                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
10366                 if (count <= 0) {
10367                         rc = count;
10368                         fprintf(stderr,
10369                         "%s %s: failed to get other mirror ids in '%s': %d\n",
10370                                 progname, argv[0], fname, rc);
10371                         goto close_fd;
10372                 }
10373         }
10374
10375         /* verify mirror id */
10376         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
10377         if (rc) {
10378                 fprintf(stderr,
10379                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10380                         progname, argv[0], read_mirror_id, fname);
10381                 goto close_fd;
10382         }
10383
10384         for (i = 0; i < count; i++) {
10385                 rc = verify_mirror_id_by_fd(fd, ids[i]);
10386                 if (rc) {
10387                         fprintf(stderr,
10388                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10389                                 progname, argv[0], ids[i], fname);
10390                         goto close_fd;
10391                 }
10392         }
10393
10394         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10395         if (!ioc) {
10396                 fprintf(stderr,
10397                         "%s %s: cannot alloc comp id array for ioc: %s\n",
10398                         progname, argv[0], strerror(errno));
10399                 rc = -errno;
10400                 goto close_fd;
10401         }
10402
10403         /* get stale component info */
10404         layout = llapi_layout_get_by_fd(fd, 0);
10405         if (!layout) {
10406                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
10407                         progname, argv[0], fname, strerror(errno));
10408                 rc = -errno;
10409                 goto free_ioc;
10410         }
10411         comp_size = llapi_mirror_find_stale(layout, comp_array,
10412                                             ARRAY_SIZE(comp_array),
10413                                             ids, count);
10414         llapi_layout_free(layout);
10415         if (comp_size < 0) {
10416                 rc = comp_size;
10417                 goto free_ioc;
10418         }
10419
10420         /* prepare target mirror components instantiation */
10421         resync_ioc = (struct ll_ioc_lease_id *)ioc;
10422         resync_ioc->lil_mode = LL_LEASE_WRLCK;
10423         resync_ioc->lil_flags = LL_LEASE_RESYNC;
10424         if (count == 1)
10425                 resync_ioc->lil_mirror_id = ids[0];
10426         else
10427                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
10428         rc = llapi_lease_set(fd, ioc);
10429         if (rc < 0) {
10430                 fprintf(stderr,
10431                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
10432                         progname, argv[0], fname, strerror(errno));
10433                 goto free_ioc;
10434         }
10435
10436         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
10437         if (copied < 0) {
10438                 rc = copied;
10439                 fprintf(stderr, "%s %s: copy error: %d\n",
10440                         progname, argv[0], rc);
10441                 goto free_ioc;
10442         }
10443
10444         fprintf(stdout, "mirror copied successfully: ");
10445         for (i = 0; i < copied; i++)
10446                 fprintf(stdout, "%d ", ids[i]);
10447         fprintf(stdout, "\n");
10448
10449         ioc->lil_mode = LL_LEASE_UNLCK;
10450         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10451         ioc->lil_count = 0;
10452         for (i = 0; i < comp_size; i++) {
10453                 int j;
10454
10455                 for (j = 0; j < copied; j++) {
10456                         if (comp_array[i].lrc_mirror_id != ids[j])
10457                                 continue;
10458
10459                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
10460                         ioc->lil_count++;
10461                 }
10462         }
10463         rc = llapi_lease_set(fd, ioc);
10464         if (rc <= 0) {
10465                 if (rc == 0)
10466                         rc = -EBUSY;
10467                 fprintf(stderr,
10468                         "%s %s: release lease lock of '%s' failed: %s\n",
10469                         progname, argv[0], fname, strerror(errno));
10470                 goto free_ioc;
10471         }
10472
10473         rc = 0;
10474
10475 free_ioc:
10476         free(ioc);
10477 close_fd:
10478         close(fd);
10479
10480         return rc;
10481 }
10482
10483 /**
10484  * struct verify_chunk - Mirror chunk to be verified.
10485  * @chunk:        [start, end) of the chunk.
10486  * @mirror_count: Number of mirror ids in @mirror_id array.
10487  * @mirror_id:    Array of valid mirror ids that cover the chunk.
10488  */
10489 struct verify_chunk {
10490         struct lu_extent chunk;
10491         unsigned int mirror_count;
10492         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
10493 };
10494
10495 /**
10496  * print_chunks() - Print chunk information.
10497  * @fname:       Mirrored file name.
10498  * @chunks:      Array of chunks.
10499  * @chunk_count: Number of chunks in @chunks array.
10500  *
10501  * This function prints [start, end) of each chunk in @chunks
10502  * for mirrored file @fname, and also prints the valid mirror ids
10503  * that cover the chunk.
10504  *
10505  * Return: void.
10506  */
10507 static inline
10508 void print_chunks(const char *fname, struct verify_chunk *chunks,
10509                   int chunk_count)
10510 {
10511         int i;
10512         int j;
10513
10514         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
10515         for (i = 0; i < chunk_count; i++) {
10516                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
10517
10518                 if (chunks[i].mirror_count == 0)
10519                         fprintf(stdout, "\t[");
10520                 else {
10521                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
10522                         for (j = 1; j < chunks[i].mirror_count; j++)
10523                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
10524                 }
10525                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
10526         }
10527         fprintf(stdout, "\n");
10528 }
10529
10530 /**
10531  * print_checksums() - Print CRC-32 checksum values.
10532  * @chunk: A chunk and its corresponding valid mirror ids.
10533  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
10534  *
10535  * This function prints CRC-32 checksum values on @chunk for
10536  * each valid mirror that covers it.
10537  *
10538  * Return: void.
10539  */
10540 static inline
10541 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
10542 {
10543         int i;
10544
10545         fprintf(stdout,
10546                 "CRC-32 checksum value for chunk "DEXT":\n",
10547                 PEXT(&chunk->chunk));
10548         for (i = 0; i < chunk->mirror_count; i++)
10549                 fprintf(stdout, "Mirror %u:\t%#lx\n",
10550                         chunk->mirror_id[i], crc[i]);
10551         fprintf(stdout, "\n");
10552 }
10553
10554 /**
10555  * filter_mirror_id() - Filter specified mirror ids.
10556  * @chunks:      Array of chunks.
10557  * @chunk_count: Number of chunks in @chunks array.
10558  * @mirror_ids:  Specified mirror ids to be verified.
10559  * @ids_nr:      Number of specified mirror ids.
10560  *
10561  * This function scans valid mirror ids that cover each chunk in @chunks
10562  * and filters specified mirror ids.
10563  *
10564  * Return: void.
10565  */
10566 static inline
10567 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
10568                       __u16 *mirror_ids, int ids_nr)
10569 {
10570         int i;
10571         int j;
10572         int k;
10573         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10574         unsigned int valid_count = 0;
10575
10576         for (i = 0; i < chunk_count; i++) {
10577                 if (chunks[i].mirror_count == 0)
10578                         continue;
10579
10580                 valid_count = 0;
10581                 for (j = 0; j < ids_nr; j++) {
10582                         for (k = 0; k < chunks[i].mirror_count; k++) {
10583                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
10584                                         valid_id[valid_count] = mirror_ids[j];
10585                                         valid_count++;
10586                                         break;
10587                                 }
10588                         }
10589                 }
10590
10591                 memcpy(chunks[i].mirror_id, valid_id,
10592                        sizeof(__u16) * valid_count);
10593                 chunks[i].mirror_count = valid_count;
10594         }
10595 }
10596
10597 /**
10598  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
10599  * @layout:      Mirror component list.
10600  * @chunks:      Array of chunks.
10601  * @chunks_size: Array size of @chunks.
10602  *
10603  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
10604  * to find out chunk segments and store them in @chunks array.
10605  *
10606  * The @mirror_id array in each element of @chunks will store the valid
10607  * mirror ids that cover the chunk. If a mirror component covering the
10608  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
10609  * will not be stored into the @mirror_id array, and the chunk for that
10610  * mirror will not be verified.
10611  *
10612  * The @mirror_count in each element of @chunks will store the number of
10613  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
10614  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
10615  * indicates the chunk is valid in only one mirror. In both cases, the
10616  * chunk will not be verified.
10617  *
10618  * Here is an example:
10619  *
10620  *  0      1M     2M     3M     4M           EOF
10621  *  +------+-------------+--------------------+
10622  *  |      |             |      S             |       mirror1
10623  *  +------+------+------+------+-------------+
10624  *  |             |   S  |   S  |             |       mirror2
10625  *  +-------------+------+------+-------------+
10626  *
10627  * prepared @chunks array will contain 5 elements:
10628  * (([0, 1M), [1, 2], 2),
10629  *  ([1M, 2M), [1, 2], 2),
10630  *  ([2M, 3M), [1], 1),
10631  *  ([3M, 4M], [], 0),
10632  *  ([4M, EOF), [2], 1))
10633  *
10634  * Return: the actual array size of @chunks on success
10635  *         or a negative error code on failure.
10636  */
10637 static inline
10638 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
10639                              struct verify_chunk *chunks,
10640                              size_t chunks_size)
10641 {
10642         uint64_t start;
10643         uint64_t end;
10644         uint32_t mirror_id;
10645         uint32_t flags;
10646         int idx = 0;
10647         int i = 0;
10648         int rc = 0;
10649
10650         memset(chunks, 0, sizeof(*chunks) * chunks_size);
10651
10652         while (1) {
10653                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
10654                 if (rc < 0) {
10655                         fprintf(stderr,
10656                                 "%s: move to the first layout component: %s.\n",
10657                                 progname, strerror(errno));
10658                         goto error;
10659                 }
10660
10661                 i = 0;
10662                 rc = 0;
10663                 chunks[idx].chunk.e_end = LUSTRE_EOF;
10664                 while (rc == 0) {
10665                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
10666                         if (rc < 0) {
10667                                 fprintf(stderr,
10668                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
10669                                         progname, strerror(errno));
10670                                 goto error;
10671                         }
10672
10673                         if (start > chunks[idx].chunk.e_start ||
10674                             end <= chunks[idx].chunk.e_start)
10675                                 goto next;
10676
10677                         if (end < chunks[idx].chunk.e_end)
10678                                 chunks[idx].chunk.e_end = end;
10679
10680                         rc = llapi_layout_comp_flags_get(layout, &flags);
10681                         if (rc < 0) {
10682                                 fprintf(stderr,
10683                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
10684                                         progname, strerror(errno));
10685                                 goto error;
10686                         }
10687
10688                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
10689                                 goto next;
10690
10691                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10692                         if (rc < 0) {
10693                                 fprintf(stderr,
10694                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10695                                         progname, strerror(errno));
10696                                 goto error;
10697                         }
10698
10699                         chunks[idx].mirror_id[i] = mirror_id;
10700                         i++;
10701                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
10702                                 fprintf(stderr,
10703                                         "%s: mirror_id array is too small.\n",
10704                                         progname);
10705                                 rc = -EINVAL;
10706                                 goto error;
10707                         }
10708
10709 next:
10710                         rc = llapi_layout_comp_use(layout,
10711                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
10712                         if (rc < 0) {
10713                                 fprintf(stderr,
10714                                         "%s: move to the next layout component: %s.\n",
10715                                         progname, strerror(errno));
10716                                 goto error;
10717                         }
10718                 } /* loop through all components */
10719
10720                 chunks[idx].mirror_count = i;
10721
10722                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
10723                         break;
10724
10725                 idx++;
10726                 if (idx >= chunks_size) {
10727                         fprintf(stderr, "%s: chunks array is too small.\n",
10728                                 progname);
10729                         rc = -EINVAL;
10730                         goto error;
10731                 }
10732
10733                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
10734         }
10735
10736 error:
10737         return rc < 0 ? rc : idx + 1;
10738 }
10739
10740 /**
10741  * lfs_mirror_verify_chunk() - Verify a chunk.
10742  * @fd:        File descriptor of the mirrored file.
10743  * @file_size: Size of the mirrored file.
10744  * @chunk:     A chunk and its corresponding valid mirror ids.
10745  * @verbose:   Verbose mode.
10746  *
10747  * This function verifies a @chunk contains exactly the same data
10748  * ammong the mirrors that cover it.
10749  *
10750  * If @verbose is specified, then the function will print where the
10751  * differences are if the data do not match. Otherwise, it will
10752  * just return an error in that case.
10753  *
10754  * Return: 0 on success or a negative error code on failure.
10755  */
10756 static inline
10757 int lfs_mirror_verify_chunk(int fd, size_t file_size,
10758                             struct verify_chunk *chunk, int verbose)
10759 {
10760         const size_t buflen = 4 * 1024 * 1024; /* 4M */
10761         void *buf;
10762         size_t page_size = sysconf(_SC_PAGESIZE);
10763         ssize_t bytes_read;
10764         ssize_t bytes_done;
10765         size_t count;
10766         off_t pos;
10767         unsigned long crc;
10768         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10769         int i;
10770         int rc = 0;
10771
10772         if (file_size == 0)
10773                 return 0;
10774
10775         rc = posix_memalign(&buf, page_size, buflen);
10776         if (rc) /* error code is returned directly */
10777                 return -rc;
10778
10779         if (verbose > 1) {
10780                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
10781                         PEXT(&chunk->chunk));
10782                 for (i = 0; i < chunk->mirror_count; i++)
10783                         fprintf(stdout, " %u", chunk->mirror_id[i]);
10784                 fprintf(stdout, "\n");
10785         }
10786
10787         bytes_done = 0;
10788         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
10789         pos = chunk->chunk.e_start;
10790         while (bytes_done < count) {
10791                 /* compute initial CRC-32 checksum */
10792                 crc = crc32(0L, Z_NULL, 0);
10793                 memset(crc_array, 0, sizeof(crc_array));
10794
10795                 bytes_read = 0;
10796                 for (i = 0; i < chunk->mirror_count; i++) {
10797                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
10798                                                        buf, buflen, pos);
10799                         if (bytes_read < 0) {
10800                                 rc = bytes_read;
10801                                 fprintf(stderr,
10802                                         "%s: failed to read data from mirror %u: %s.\n",
10803                                         progname, chunk->mirror_id[i],
10804                                         strerror(-rc));
10805                                 goto error;
10806                         }
10807
10808                         /* compute new CRC-32 checksum */
10809                         crc_array[i] = crc32(crc, buf, bytes_read);
10810                 }
10811
10812                 if (verbose)
10813                         print_checksums(chunk, crc_array);
10814
10815                 /* compare CRC-32 checksum values */
10816                 for (i = 1; i < chunk->mirror_count; i++) {
10817                         if (crc_array[i] != crc_array[0]) {
10818                                 rc = -EINVAL;
10819
10820                                 fprintf(stderr,
10821                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
10822                                         progname, PEXT(&chunk->chunk),
10823                                         chunk->mirror_id[0],
10824                                         chunk->mirror_id[i]);
10825                         }
10826                 }
10827
10828                 pos += bytes_read;
10829                 bytes_done += bytes_read;
10830         }
10831
10832         if (verbose > 1 && rc == 0) {
10833                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
10834                         PEXT(&chunk->chunk));
10835                 for (i = 0; i < chunk->mirror_count; i++)
10836                         fprintf(stdout, " %u", chunk->mirror_id[i]);
10837                 fprintf(stdout, " PASS\n\n");
10838         }
10839
10840 error:
10841         free(buf);
10842         return rc;
10843 }
10844
10845 /**
10846  * lfs_mirror_verify_file() - Verify a mirrored file.
10847  * @fname:      Mirrored file name.
10848  * @mirror_ids: Specified mirror ids to be verified.
10849  * @ids_nr:     Number of specified mirror ids.
10850  * @verbose:    Verbose mode.
10851  *
10852  * This function verifies that each SYNC mirror of a mirrored file
10853  * specified by @fname contains exactly the same data.
10854  *
10855  * If @mirror_ids is specified, then the function will verify the
10856  * mirrors specified by @mirror_ids contain exactly the same data.
10857  *
10858  * If @verbose is specified, then the function will print where the
10859  * differences are if the data do not match. Otherwise, it will
10860  * just return an error in that case.
10861  *
10862  * Return: 0 on success or a negative error code on failure.
10863  */
10864 static inline
10865 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
10866                            int verbose)
10867 {
10868         struct verify_chunk chunks_array[1024] = { };
10869         struct llapi_layout *layout = NULL;
10870         struct stat stbuf;
10871         uint32_t flr_state;
10872         int fd;
10873         int chunk_count = 0;
10874         int idx = 0;
10875         int rc = 0;
10876         int rc1 = 0;
10877         int rc2 = 0;
10878
10879         if (stat(fname, &stbuf) < 0) {
10880                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10881                         progname, fname, strerror(errno));
10882                 rc = -errno;
10883                 goto error;
10884         }
10885
10886         if (!S_ISREG(stbuf.st_mode)) {
10887                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10888                         progname, fname);
10889                 rc = -EINVAL;
10890                 goto error;
10891         }
10892
10893         if (stbuf.st_size == 0) {
10894                 if (verbose)
10895                         fprintf(stdout, "%s: '%s' file size is 0.\n",
10896                                 progname, fname);
10897                 rc = 0;
10898                 goto error;
10899         }
10900
10901         fd = open(fname, O_DIRECT | O_RDONLY);
10902         if (fd < 0) {
10903                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10904                         progname, fname, strerror(errno));
10905                 rc = -errno;
10906                 goto error;
10907         }
10908
10909         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10910         if (rc < 0) {
10911                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10912                         progname, fname, strerror(errno));
10913                 goto close_fd;
10914         }
10915
10916         layout = llapi_layout_get_by_fd(fd, 0);
10917         if (!layout) {
10918                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10919                         progname, fname, strerror(errno));
10920                 rc = -errno;
10921                 llapi_lease_release(fd);
10922                 goto close_fd;
10923         }
10924
10925         rc = llapi_layout_flags_get(layout, &flr_state);
10926         if (rc < 0) {
10927                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10928                         progname, fname, strerror(errno));
10929                 rc = -errno;
10930                 goto free_layout;
10931         }
10932
10933         flr_state &= LCM_FL_FLR_MASK;
10934         switch (flr_state) {
10935         case LCM_FL_NONE:
10936                 rc = -EINVAL;
10937                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10938                         progname, fname, llapi_layout_flags_string(flr_state));
10939                 goto free_layout;
10940         default:
10941                 break;
10942         }
10943
10944         /* find out mirror chunks to be verified */
10945         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
10946                                                ARRAY_SIZE(chunks_array));
10947         if (chunk_count < 0) {
10948                 rc = chunk_count;
10949                 goto free_layout;
10950         }
10951
10952         if (ids_nr > 0)
10953                 /* filter specified mirror ids */
10954                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
10955
10956         if (verbose > 2)
10957                 print_chunks(fname, chunks_array, chunk_count);
10958
10959         for (idx = 0; idx < chunk_count; idx++) {
10960                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
10961                         if (verbose)
10962                                 fprintf(stdout,
10963                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
10964                                         progname, fname,
10965                                         PEXT(&chunks_array[idx].chunk),
10966                                         (unsigned long long)stbuf.st_size);
10967                         break;
10968                 }
10969
10970                 if (chunks_array[idx].mirror_count == 0) {
10971                         fprintf(stderr,
10972                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
10973                                 progname, fname,
10974                                 PEXT(&chunks_array[idx].chunk));
10975                         if (verbose) {
10976                                 fprintf(stderr, "skipped\n");
10977                                 continue;
10978                         }
10979                         rc = -EINVAL;
10980                         fprintf(stderr, "failed\n");
10981                         goto free_layout;
10982                 }
10983
10984                 if (chunks_array[idx].mirror_count == 1) {
10985                         if (verbose)
10986                                 fprintf(stdout,
10987                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
10988                                         progname, fname,
10989                                         PEXT(&chunks_array[idx].chunk),
10990                                         chunks_array[idx].mirror_id[0]);
10991                         continue;
10992                 }
10993
10994                 rc = llapi_lease_check(fd);
10995                 if (rc != LL_LEASE_RDLCK) {
10996                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
10997                                 progname, fname);
10998                         goto free_layout;
10999                 }
11000
11001                 /* verify one chunk */
11002                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
11003                                               &chunks_array[idx], verbose);
11004                 if (rc1 < 0) {
11005                         rc2 = rc1;
11006                         if (!verbose) {
11007                                 rc = rc1;
11008                                 goto free_layout;
11009                         }
11010                 }
11011         }
11012
11013         if (rc2 < 0)
11014                 rc = rc2;
11015
11016 free_layout:
11017         llapi_layout_free(layout);
11018         llapi_lease_release(fd);
11019 close_fd:
11020         close(fd);
11021 error:
11022         return rc;
11023 }
11024
11025 /**
11026  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
11027  * @argc: The count of lfs mirror verify command line arguments.
11028  * @argv: Array of strings for lfs mirror verify command line arguments.
11029  *
11030  * This function parses lfs mirror verify command and verifies the
11031  * specified mirrored file(s).
11032  *
11033  * Return: 0 on success or a negative error code on failure.
11034  */
11035 static inline int lfs_mirror_verify(int argc, char **argv)
11036 {
11037         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11038         int ids_nr = 0;
11039         int c;
11040         int verbose = 0;
11041         int rc = 0;
11042         int rc1 = 0;
11043         char cmd[PATH_MAX];
11044
11045         struct option long_opts[] = {
11046         { .val = 'o',   .name = "only",         .has_arg = required_argument },
11047         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
11048         { .name = NULL } };
11049
11050         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11051         progname = cmd;
11052         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
11053                 switch (c) {
11054                 case 'o':
11055                         rc = parse_mirror_ids(mirror_ids,
11056                                               ARRAY_SIZE(mirror_ids),
11057                                               optarg);
11058                         if (rc < 0) {
11059                                 fprintf(stderr,
11060                                         "%s: bad mirror ids '%s'.\n",
11061                                         progname, optarg);
11062                                 goto error;
11063                         }
11064                         ids_nr = rc;
11065                         if (ids_nr < 2) {
11066                                 fprintf(stderr,
11067                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
11068                                         progname);
11069                                 rc = CMD_HELP;
11070                                 goto error;
11071                         }
11072                         break;
11073                 case 'v':
11074                         verbose++;
11075                         break;
11076                 default:
11077                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
11078                                 progname, argv[optind - 1]);
11079                         rc = -EINVAL;
11080                         goto error;
11081                 }
11082         }
11083
11084         if (argc == optind) {
11085                 fprintf(stderr, "%s: no file name given.\n", progname);
11086                 rc = CMD_HELP;
11087                 goto error;
11088         }
11089
11090         if (ids_nr > 0 && argc > optind + 1) {
11091                 fprintf(stderr,
11092                         "%s: '--only' cannot be used upon multiple files.\n",
11093                         progname);
11094                 rc = CMD_HELP;
11095                 goto error;
11096         }
11097
11098         if (ids_nr > 0) {
11099                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
11100                 if (rc < 0)
11101                         goto error;
11102         }
11103
11104         rc = 0;
11105         for (; optind < argc; optind++) {
11106                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
11107                                              verbose);
11108                 if (rc1 < 0)
11109                         rc = rc1;
11110         }
11111 error:
11112         return rc;
11113 }
11114
11115 /**
11116  * lfs_mirror() - Parse and execute lfs mirror commands.
11117  * @argc: The count of lfs mirror command line arguments.
11118  * @argv: Array of strings for lfs mirror command line arguments.
11119  *
11120  * This function parses lfs mirror commands and performs the
11121  * corresponding functions specified in mirror_cmdlist[].
11122  *
11123  * Return: 0 on success or an error code on failure.
11124  */
11125 static int lfs_mirror(int argc, char **argv)
11126 {
11127         char cmd[PATH_MAX];
11128         int rc = 0;
11129
11130         setlinebuf(stdout);
11131
11132         Parser_init("lfs-mirror > ", mirror_cmdlist);
11133
11134         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11135         progname = cmd;
11136         program_invocation_short_name = cmd;
11137         if (argc > 1)
11138                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
11139         else
11140                 rc = Parser_commands();
11141
11142         return rc < 0 ? -rc : rc;
11143 }
11144
11145 static void lustre_som_swab(struct lustre_som_attrs *attrs)
11146 {
11147 #if __BYTE_ORDER == __BIG_ENDIAN
11148         __swab16s(&attrs->lsa_valid);
11149         __swab64s(&attrs->lsa_size);
11150         __swab64s(&attrs->lsa_blocks);
11151 #endif
11152 }
11153
11154 enum lfs_som_type {
11155         LFS_SOM_SIZE = 0x1,
11156         LFS_SOM_BLOCKS = 0x2,
11157         LFS_SOM_FLAGS = 0x4,
11158         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
11159                            LFS_SOM_FLAGS,
11160 };
11161
11162 static int lfs_getsom(int argc, char **argv)
11163 {
11164         const char *path;
11165         struct lustre_som_attrs *attrs;
11166         char buf[sizeof(*attrs) + 64];
11167         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
11168         int rc = 0, c;
11169
11170         while ((c = getopt(argc, argv, "sbf")) != -1) {
11171                 switch (c) {
11172                 case 's':
11173                         type = LFS_SOM_SIZE;
11174                         break;
11175                 case 'b':
11176                         type = LFS_SOM_BLOCKS;
11177                         break;
11178                 case 'f':
11179                         type = LFS_SOM_FLAGS;
11180                         break;
11181                 default:
11182                         fprintf(stderr, "%s: invalid option '%c'\n",
11183                                 progname, optopt);
11184                         return CMD_HELP;
11185                 }
11186         }
11187
11188         argc -= optind;
11189         argv += optind;
11190
11191         if (argc != 1) {
11192                 fprintf(stderr, "%s: %s\n",
11193                         progname, argc == 0 ? "miss file target" :
11194                         "input more than 2 files");
11195                 return CMD_HELP;
11196         }
11197
11198         path = argv[0];
11199         attrs = (void *)buf;
11200         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
11201         if (rc < 0) {
11202                 rc = -errno;
11203                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
11204                         argv[0], strerror(errno), errno);
11205                 return rc;
11206         }
11207
11208         lustre_som_swab(attrs);
11209
11210         switch (type) {
11211         case LFS_SOM_ATTR_ALL:
11212                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
11213                        path, (unsigned long long)attrs->lsa_size,
11214                        (unsigned long long)attrs->lsa_blocks,
11215                        attrs->lsa_valid);
11216                 break;
11217         case LFS_SOM_SIZE:
11218                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
11219                 break;
11220         case LFS_SOM_BLOCKS:
11221                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
11222                 break;
11223         case LFS_SOM_FLAGS:
11224                 printf("%x\n", attrs->lsa_valid);
11225                 break;
11226         default:
11227                 fprintf(stderr, "%s: unknown option\n", progname);
11228                 return CMD_HELP;
11229         }
11230
11231         return 0;
11232 }
11233
11234 /**
11235  * lfs_mirror_list_commands() - List lfs mirror commands.
11236  * @argc: The count of command line arguments.
11237  * @argv: Array of strings for command line arguments.
11238  *
11239  * This function lists lfs mirror commands defined in mirror_cmdlist[].
11240  *
11241  * Return: 0 on success.
11242  */
11243 static int lfs_mirror_list_commands(int argc, char **argv)
11244 {
11245         char buffer[81] = "";
11246
11247         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
11248                              NULL, 0, 4);
11249
11250         return 0;
11251 }
11252
11253 static int lfs_pcc_attach(int argc, char **argv)
11254 {
11255         struct option long_opts[] = {
11256         { .val = 'i',   .name = "id",   .has_arg = required_argument },
11257         { .name = NULL } };
11258         int c;
11259         int rc = 0;
11260         __u32 archive_id = 0;
11261         const char *path;
11262         char *end;
11263         char fullpath[PATH_MAX];
11264         enum lu_pcc_type type = LU_PCC_READWRITE;
11265
11266         optind = 0;
11267         while ((c = getopt_long(argc, argv, "i:",
11268                                 long_opts, NULL)) != -1) {
11269                 switch (c) {
11270                 case 'i':
11271                         archive_id = strtoul(optarg, &end, 0);
11272                         if (*end != '\0' || archive_id == 0) {
11273                                 fprintf(stderr,
11274                                         "error: %s: bad archive ID '%s'\n",
11275                                         argv[0], optarg);
11276                                 return CMD_HELP;
11277                         }
11278                         break;
11279                 case '?':
11280                         return CMD_HELP;
11281                 default:
11282                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11283                                 argv[0], argv[optind - 1]);
11284                         return CMD_HELP;
11285                 }
11286         }
11287
11288         if (archive_id == 0) {
11289                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
11290                 return CMD_HELP;
11291         }
11292
11293         if (argc <= optind) {
11294                 fprintf(stderr, "%s: must specify one or more file names\n",
11295                         argv[0]);
11296                 return CMD_HELP;
11297         }
11298
11299         while (optind < argc) {
11300                 int rc2;
11301
11302                 path = argv[optind++];
11303                 if (!realpath(path, fullpath)) {
11304                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11305                                 argv[0], path, strerror(errno));
11306                         if (rc == 0)
11307                                 rc = -EINVAL;
11308                         continue;
11309                 }
11310
11311                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
11312                 if (rc2 < 0) {
11313                         fprintf(stderr,
11314                                 "%s: cannot attach '%s' to PCC with archive ID '%u': %s\n",
11315                                 argv[0], path, archive_id, strerror(-rc2));
11316                         if (rc == 0)
11317                                 rc = rc2;
11318                 }
11319         }
11320         return rc;
11321 }
11322
11323 static int lfs_pcc_attach_fid(int argc, char **argv)
11324 {
11325         struct option long_opts[] = {
11326         { .val = 'i',   .name = "id",   .has_arg = required_argument },
11327         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
11328         { .name = NULL } };
11329         char                     short_opts[] = "i:m:";
11330         int                      c;
11331         int                      rc = 0;
11332         __u32                    archive_id = 0;
11333         char                    *end;
11334         const char              *mntpath = NULL;
11335         const char              *fidstr;
11336         enum lu_pcc_type         type = LU_PCC_READWRITE;
11337
11338         optind = 0;
11339         while ((c = getopt_long(argc, argv, short_opts,
11340                                 long_opts, NULL)) != -1) {
11341                 switch (c) {
11342                 case 'i':
11343                         archive_id = strtoul(optarg, &end, 0);
11344                         if (*end != '\0') {
11345                                 fprintf(stderr,
11346                                         "error: %s: bad archive ID '%s'\n",
11347                                         argv[0], optarg);
11348                                 return CMD_HELP;
11349                         }
11350                         break;
11351                 case 'm':
11352                         mntpath = optarg;
11353                         break;
11354                 case '?':
11355                         return CMD_HELP;
11356                 default:
11357                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11358                                 argv[0], argv[optind - 1]);
11359                         return CMD_HELP;
11360                 }
11361         }
11362
11363         if (archive_id == 0) {
11364                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
11365                 return CMD_HELP;
11366         }
11367
11368         if (!mntpath) {
11369                 fprintf(stderr, "%s: must specify Lustre mount point\n",
11370                         argv[0]);
11371                 return CMD_HELP;
11372         }
11373
11374         if (argc <= optind) {
11375                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
11376                 return CMD_HELP;
11377         }
11378
11379         while (optind < argc) {
11380                 int rc2;
11381
11382                 fidstr = argv[optind++];
11383
11384                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
11385                                                archive_id, type);
11386                 if (rc2 < 0) {
11387                         fprintf(stderr,
11388                                 "%s: cannot attach '%s' on '%s' to PCC with archive ID '%u': %s\n",
11389                                 argv[0], fidstr, mntpath, archive_id,
11390                                 strerror(rc2));
11391                 }
11392                 if (rc == 0 && rc2 < 0)
11393                         rc = rc2;
11394         }
11395         return rc;
11396 }
11397
11398 static int lfs_pcc_detach(int argc, char **argv)
11399 {
11400         struct option long_opts[] = {
11401         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11402         { .name = NULL } };
11403         char                     short_opts[] = "k";
11404         int                      c;
11405         int                      rc = 0;
11406         const char              *path;
11407         char                     fullpath[PATH_MAX];
11408         __u32                    detach_opt = PCC_DETACH_OPT_UNCACHE;
11409
11410         optind = 0;
11411         while ((c = getopt_long(argc, argv, short_opts,
11412                                 long_opts, NULL)) != -1) {
11413                 switch (c) {
11414                 case 'k':
11415                         detach_opt = PCC_DETACH_OPT_NONE;
11416                         break;
11417                 case '?':
11418                         return CMD_HELP;
11419                 default:
11420                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11421                                 argv[0], argv[optind - 1]);
11422                         return CMD_HELP;
11423                 }
11424         }
11425
11426         while (optind < argc) {
11427                 int rc2;
11428
11429                 path = argv[optind++];
11430                 if (!realpath(path, fullpath)) {
11431                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11432                                 argv[0], path, strerror(errno));
11433                         if (rc == 0)
11434                                 rc = -EINVAL;
11435                         continue;
11436                 }
11437
11438                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
11439                 if (rc2 < 0) {
11440                         rc2 = -errno;
11441                         fprintf(stderr,
11442                                 "%s: cannot detach '%s' from PCC: %s\n",
11443                                 argv[0], path, strerror(errno));
11444                         if (rc == 0)
11445                                 rc = rc2;
11446                 }
11447         }
11448         return rc;
11449 }
11450
11451 static int lfs_pcc_detach_fid(int argc, char **argv)
11452 {
11453         struct option long_opts[] = {
11454         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11455         { .name = NULL } };
11456         char             short_opts[] = "k";
11457         int              c;
11458         int              rc = 0;
11459         const char      *fid;
11460         const char      *mntpath;
11461         __u32            detach_opt = PCC_DETACH_OPT_UNCACHE;
11462
11463         optind = 0;
11464         while ((c = getopt_long(argc, argv, short_opts,
11465                                 long_opts, NULL)) != -1) {
11466                 switch (c) {
11467                 case 'k':
11468                         detach_opt = PCC_DETACH_OPT_NONE;
11469                         break;
11470                 case '?':
11471                         return CMD_HELP;
11472                 default:
11473                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11474                                 argv[0], argv[optind - 1]);
11475                         return CMD_HELP;
11476                 }
11477         }
11478
11479         mntpath = argv[optind++];
11480
11481         while (optind < argc) {
11482                 int rc2;
11483
11484                 fid = argv[optind++];
11485
11486                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
11487                 if (rc2 < 0) {
11488                         fprintf(stderr,
11489                                 "%s: cannot detach '%s' on '%s' from PCC: %s\n",
11490                                 argv[0], fid, mntpath, strerror(-rc2));
11491                         if (rc == 0)
11492                                 rc = rc2;
11493                 }
11494         }
11495         return rc;
11496 }
11497
11498 static int lfs_pcc_state(int argc, char **argv)
11499 {
11500         int                      rc = 0;
11501         const char              *path;
11502         char                     fullpath[PATH_MAX];
11503         struct lu_pcc_state      state;
11504
11505         optind = 1;
11506
11507         if (argc <= 1) {
11508                 fprintf(stderr, "%s: must specify one or more file names\n",
11509                         argv[0]);
11510                 return CMD_HELP;
11511         }
11512
11513         while (optind < argc) {
11514                 int rc2;
11515
11516                 path = argv[optind++];
11517                 if (!realpath(path, fullpath)) {
11518                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11519                                 argv[0], path, strerror(errno));
11520                         if (rc == 0)
11521                                 rc = -EINVAL;
11522                         continue;
11523                 }
11524
11525                 rc2 = llapi_pcc_state_get(fullpath, &state);
11526                 if (rc2 < 0) {
11527                         if (rc == 0)
11528                                 rc = rc2;
11529                         fprintf(stderr,
11530                                 "%s: cannot get PCC state of '%s': %s\n",
11531                                 argv[0], path, strerror(-rc2));
11532                         continue;
11533                 }
11534
11535                 printf("file: %s", path);
11536                 printf(", type: %s", pcc_type2string(state.pccs_type));
11537                 if (state.pccs_type == LU_PCC_NONE &&
11538                     state.pccs_open_count == 0) {
11539                         printf("\n");
11540                         continue;
11541                 }
11542
11543                 printf(", PCC file: %s", state.pccs_path);
11544                 printf(", user number: %u", state.pccs_open_count);
11545                 printf(", flags: %x", state.pccs_flags);
11546                 printf("\n");
11547         }
11548         return rc;
11549 }
11550
11551 /**
11552  * lfs_pcc_list_commands() - List lfs pcc commands.
11553  * @argc: The count of command line arguments.
11554  * @argv: Array of strings for command line arguments.
11555  *
11556  * This function lists lfs pcc commands defined in pcc_cmdlist[].
11557  *
11558  * Return: 0 on success.
11559  */
11560 static int lfs_pcc_list_commands(int argc, char **argv)
11561 {
11562         char buffer[81] = "";
11563
11564         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
11565                              NULL, 0, 4);
11566
11567         return 0;
11568 }
11569
11570 /**
11571  * lfs_pcc() - Parse and execute lfs pcc commands.
11572  * @argc: The count of lfs pcc command line arguments.
11573  * @argv: Array of strings for lfs pcc command line arguments.
11574  *
11575  * This function parses lfs pcc commands and performs the
11576  * corresponding functions specified in pcc_cmdlist[].
11577  *
11578  * Return: 0 on success or an error code on failure.
11579  */
11580 static int lfs_pcc(int argc, char **argv)
11581 {
11582         char cmd[PATH_MAX];
11583         int rc = 0;
11584
11585         setlinebuf(stdout);
11586
11587         Parser_init("lfs-pcc > ", pcc_cmdlist);
11588
11589         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11590         progname = cmd;
11591         program_invocation_short_name = cmd;
11592         if (argc > 1)
11593                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
11594         else
11595                 rc = Parser_commands();
11596
11597         return rc < 0 ? -rc : rc;
11598 }
11599
11600 static int lfs_list_commands(int argc, char **argv)
11601 {
11602         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
11603
11604         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
11605
11606         return 0;
11607 }
11608
11609 int main(int argc, char **argv)
11610 {
11611         int rc;
11612
11613         /* Ensure that liblustreapi constructor has run */
11614         if (!llapi_liblustreapi_initialized())
11615                 fprintf(stderr, "liblustreapi was not properly initialized\n");
11616
11617         setlinebuf(stdout);
11618         opterr = 0;
11619
11620         Parser_init("lfs > ", cmdlist);
11621
11622         progname = program_invocation_short_name; /* Used in error messages */
11623         if (argc > 1) {
11624                 llapi_set_command_name(argv[1]);
11625                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
11626                 llapi_clear_command_name();
11627         } else {
11628                 rc = Parser_commands();
11629         }
11630
11631         return rc < 0 ? -rc : rc;
11632 }
11633
11634 #ifdef _LUSTRE_IDL_H_
11635 /* Everything we need here should be included by lustreapi.h. */
11636 # error "lfs should not depend on lustre_idl.h"
11637 #endif /* _LUSTRE_IDL_H_ */