Whamcloud - gitweb
LU-4843 mdt: disallow old clients access striped dir
[fs/lustre-release.git] / 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.sun.com/software/products/lustre/docs/GPLv2.pdf
19  *
20  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21  * CA 95054 USA or visit www.sun.com if you need additional information or
22  * have any questions.
23  *
24  * GPL HEADER END
25  */
26 /*
27  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28  * Use is subject to license terms.
29  *
30  * Copyright (c) 2011, 2013, Intel Corporation.
31  */
32 /*
33  * This file is part of Lustre, http://www.lustre.org/
34  * Lustre is a trademark of Sun Microsystems, Inc.
35  *
36  * lustre/utils/lfs.c
37  *
38  * Author: Peter J. Braam <braam@clusterfs.com>
39  * Author: Phil Schwan <phil@clusterfs.com>
40  * Author: Robert Read <rread@clusterfs.com>
41  */
42
43 /* for O_DIRECTORY */
44 #ifndef _GNU_SOURCE
45 #define _GNU_SOURCE
46 #endif
47
48 #include <stdlib.h>
49 #include <stdio.h>
50 #include <getopt.h>
51 #include <string.h>
52 #include <mntent.h>
53 #include <errno.h>
54 #include <err.h>
55 #include <pwd.h>
56 #include <grp.h>
57 #include <sys/quota.h>
58 #include <sys/types.h>
59 #include <sys/stat.h>
60 #include <fcntl.h>
61 #include <dirent.h>
62 #include <time.h>
63 #include <ctype.h>
64 #ifdef HAVE_SYS_QUOTA_H
65 # include <sys/quota.h>
66 #endif
67
68 #include <libcfs/libcfs.h>
69 #include <libcfs/libcfsutil.h>
70 #include <lnet/lnetctl.h>
71 #include <lustre/lustreapi.h>
72 #include <lustre_ver.h>
73 #include "obdctl.h"
74
75 /* all functions */
76 static int lfs_setstripe(int argc, char **argv);
77 static int lfs_find(int argc, char **argv);
78 static int lfs_getstripe(int argc, char **argv);
79 static int lfs_getdirstripe(int argc, char **argv);
80 static int lfs_setdirstripe(int argc, char **argv);
81 static int lfs_rmentry(int argc, char **argv);
82 static int lfs_osts(int argc, char **argv);
83 static int lfs_mdts(int argc, char **argv);
84 static int lfs_df(int argc, char **argv);
85 static int lfs_getname(int argc, char **argv);
86 static int lfs_check(int argc, char **argv);
87 #ifdef HAVE_SYS_QUOTA_H
88 static int lfs_quotacheck(int argc, char **argv);
89 static int lfs_quotaon(int argc, char **argv);
90 static int lfs_quotaoff(int argc, char **argv);
91 static int lfs_setquota(int argc, char **argv);
92 static int lfs_quota(int argc, char **argv);
93 #endif
94 static int lfs_flushctx(int argc, char **argv);
95 static int lfs_join(int argc, char **argv);
96 static int lfs_lsetfacl(int argc, char **argv);
97 static int lfs_lgetfacl(int argc, char **argv);
98 static int lfs_rsetfacl(int argc, char **argv);
99 static int lfs_rgetfacl(int argc, char **argv);
100 static int lfs_cp(int argc, char **argv);
101 static int lfs_ls(int argc, char **argv);
102 static int lfs_poollist(int argc, char **argv);
103 static int lfs_changelog(int argc, char **argv);
104 static int lfs_changelog_clear(int argc, char **argv);
105 static int lfs_fid2path(int argc, char **argv);
106 static int lfs_path2fid(int argc, char **argv);
107 static int lfs_data_version(int argc, char **argv);
108 static int lfs_hsm_state(int argc, char **argv);
109 static int lfs_hsm_set(int argc, char **argv);
110 static int lfs_hsm_clear(int argc, char **argv);
111 static int lfs_hsm_action(int argc, char **argv);
112 static int lfs_hsm_archive(int argc, char **argv);
113 static int lfs_hsm_restore(int argc, char **argv);
114 static int lfs_hsm_release(int argc, char **argv);
115 static int lfs_hsm_remove(int argc, char **argv);
116 static int lfs_hsm_cancel(int argc, char **argv);
117 static int lfs_swap_layouts(int argc, char **argv);
118 static int lfs_mv(int argc, char **argv);
119
120 #define SETSTRIPE_USAGE(_cmd, _tgt) \
121         "usage: "_cmd" [--stripe-count|-c <stripe_count>]\n"\
122         "                 [--stripe-index|-i <start_ost_idx>]\n"\
123         "                 [--stripe-size|-S <stripe_size>]\n"\
124         "                 [--pool|-p <pool_name>]\n"\
125         "                 [--block|-b] "_tgt"\n"\
126         "\tstripe_size:  Number of bytes on each OST (0 filesystem default)\n"\
127         "\t              Can be specified with k, m or g (in KB, MB and GB\n"\
128         "\t              respectively)\n"\
129         "\tstart_ost_idx: OST index of first stripe (-1 default)\n"\
130         "\tstripe_count: Number of OSTs to stripe over (0 default, -1 all)\n"\
131         "\tpool_name:    Name of OST pool to use (default none)\n"\
132         "\tblock:        Block file access during data migration"
133
134 /* all avaialable commands */
135 command_t cmdlist[] = {
136         {"setstripe", lfs_setstripe, 0,
137          "Create a new file with a specific striping pattern or\n"
138          "set the default striping pattern on an existing directory or\n"
139          "delete the default striping pattern from an existing directory\n"
140          "usage: setstripe -d <directory>   (to delete default striping)\n"\
141          " or\n"
142          SETSTRIPE_USAGE("setstripe", "<directory|filename>")},
143         {"getstripe", lfs_getstripe, 0,
144          "To list the striping info for a given file or files in a\n"
145          "directory or recursively for all files in a directory tree.\n"
146          "usage: getstripe [--ost|-O <uuid>] [--quiet | -q] [--verbose | -v]\n"
147          "                 [--stripe-count|-c] [--stripe-index|-i]\n"
148          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
149          "                 [--mdt-index|-M] [--recursive|-r] [--raw|-R]\n"
150          "                 [--layout|-L]\n"
151          "                 <directory|filename> ..."},
152         {"setdirstripe", lfs_setdirstripe, 0,
153          "To create a remote directory on a specified MDT.\n"
154          "usage: setdirstripe <--count|-c stripe_count>\n"
155          "[--index|-i mdt_index] [--hash-type|-t hash_type]\n"
156          "[--default_stripe|-D ] <dir>\n"
157          "\tstripe_count: stripe count of the striped directory\n"
158          "\tmdt_index:  MDT index of first stripe\n"
159          "\thash_type:  hash type of the striped directory. Hash types:\n"
160          "      -t fnv_1a_64 FNV-1a hash algorithm(default)\n"
161          "      -t all_char  sum of characters % MDT_COUNT. (not recommended)\n"
162          "\tdefault_stripe: set default dirstripe of the directory\n"},
163         {"getdirstripe", lfs_getdirstripe, 0,
164          "To list the striping info for a given directory\n"
165          "or recursively for all directories in a directory tree.\n"
166          "usage: getdirstripe [--obd|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
167          "               [--count|-c ] [--index|-i ] [--raw|-R]\n"
168          "               [--recursive | -r] [ --default_stripe | -D ] <dir> "},
169         {"mkdir", lfs_setdirstripe, 0,
170          "To create a remote directory on a specified MDT. And this can only\n"
171          "be done on MDT0 by administrator.\n"
172          "usage: mkdir <--index|-i mdt_index> <dir>\n"
173          "\tmdt_index:    MDT index of the remote directory.\n"},
174         {"rm_entry", lfs_rmentry, 0,
175          "To remove the name entry of the remote directory. Note: This\n"
176          "command will only delete the name entry, i.e. the remote directory\n"
177          "will become inaccessable after this command. This can only be done\n"
178          "by the administrator\n"
179          "usage: rm_entry <dir>\n"},
180         {"pool_list", lfs_poollist, 0,
181          "List pools or pool OSTs\n"
182          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
183         {"find", lfs_find, 0,
184          "find files matching given attributes recursively in directory tree.\n"
185          "usage: find <directory|filename> ...\n"
186          "     [[!] --atime|-A [+-]N] [[!] --ctime|-C [+-]N]\n"
187          "     [[!] --mtime|-M [+-]N] [[!] --mdt|-m <uuid|index,...>]\n"
188          "     [--maxdepth|-D N] [[!] --name|-n <pattern>]\n"
189          "     [[!] --ost|-O <uuid|index,...>] [--print|-p] [--print0|-P]\n"
190          "     [[!] --size|-s [+-]N[bkMGTPE]]\n"
191          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
192          "     [[!] --stripe-index|-i <index,...>]\n"
193          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
194          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
195          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
196          "     [[!] --layout|-L released,raid0]\n"
197          "\t !: used before an option indicates 'NOT' requested attribute\n"
198          "\t -: used before a value indicates 'AT MOST' requested value\n"
199          "\t +: used before a value indicates 'AT LEAST' requested value\n"},
200         {"check", lfs_check, 0,
201          "Display the status of MDS or OSTs (as specified in the command)\n"
202          "or all the servers (MDS and OSTs).\n"
203          "usage: check <osts|mds|servers>"},
204         {"join", lfs_join, 0,
205          "join two lustre files into one.\n"
206          "obsolete, HEAD does not support it anymore.\n"},
207         {"osts", lfs_osts, 0, "list OSTs connected to client "
208          "[for specified path only]\n" "usage: osts [path]"},
209         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
210          "[for specified path only]\n" "usage: mdts [path]"},
211         {"df", lfs_df, 0,
212          "report filesystem disk space usage or inodes usage"
213          "of each MDS and all OSDs or a batch belonging to a specific pool .\n"
214          "Usage: df [-i] [-h] [--lazy|-l] [--pool|-p <fsname>[.<pool>] [path]"},
215         {"getname", lfs_getname, 0, "list instances and specified mount points "
216          "[for specified path only]\n"
217          "Usage: getname [-h]|[path ...] "},
218 #ifdef HAVE_SYS_QUOTA_H
219         {"quotacheck", lfs_quotacheck, 0,
220          "Scan the specified filesystem for disk usage, and create,\n"
221          "or update quota files. Deprecated as of 2.4.0.\n"
222          "usage: quotacheck [ -ug ] <filesystem>"},
223         {"quotaon", lfs_quotaon, 0, "Turn filesystem"
224          " quotas on. Deprecated as of 2.4.0.\n"
225          "usage: quotaon [ -ugf ] <filesystem>"},
226         {"quotaoff", lfs_quotaoff, 0, "Turn filesystem"
227          " quotas off. Deprecated as of 2.4.0.\n"
228          "usage: quotaoff [ -ug ] <filesystem>"},
229         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
230          "usage: setquota <-u|-g> <uname>|<uid>|<gname>|<gid>\n"
231          "                -b <block-softlimit> -B <block-hardlimit>\n"
232          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
233          "       setquota <-u|--user|-g|--group> <uname>|<uid>|<gname>|<gid>\n"
234          "                [--block-softlimit <block-softlimit>]\n"
235          "                [--block-hardlimit <block-hardlimit>]\n"
236          "                [--inode-softlimit <inode-softlimit>]\n"
237          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
238          "       setquota [-t] <-u|--user|-g|--group>\n"
239          "                [--block-grace <block-grace>]\n"
240          "                [--inode-grace <inode-grace>] <filesystem>\n"
241          "       -b can be used instead of --block-softlimit/--block-grace\n"
242          "       -B can be used instead of --block-hardlimit\n"
243          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
244          "       -I can be used instead of --inode-hardlimit\n\n"
245          "Note: The total quota space will be split into many qunits and\n"
246          "      balanced over all server targets, the minimal qunit size is\n"
247          "      1M bytes for block space and 1K inodes for inode space.\n\n"
248          "      Quota space rebalancing process will stop when this mininum\n"
249          "      value is reached. As a result, quota exceeded can be returned\n"
250          "      while many targets still have 1MB or 1K inodes of spare\n"
251          "      quota space."},
252         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
253          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
254                        "<ost_idx>]\n"
255          "             [<-u|-g> <uname>|<uid>|<gname>|<gid>] <filesystem>\n"
256          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g> <filesystem>"},
257 #endif
258         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
259          "usage: flushctx [-k] [mountpoint...]"},
260         {"lsetfacl", lfs_lsetfacl, 0,
261          "Remote user setfacl for user/group on the same remote client.\n"
262          "usage: lsetfacl [-bkndRLPvh] [{-m|-x} acl_spec] [{-M|-X} acl_file] file ..."},
263         {"lgetfacl", lfs_lgetfacl, 0,
264          "Remote user getfacl for user/group on the same remote client.\n"
265          "usage: lgetfacl [-dRLPvh] file ..."},
266         {"rsetfacl", lfs_rsetfacl, 0,
267          "Remote user setfacl for user/group on other clients.\n"
268          "usage: rsetfacl [-bkndRLPvh] [{-m|-x} acl_spec] [{-M|-X} acl_file] file ..."},
269         {"rgetfacl", lfs_rgetfacl, 0,
270          "Remote user getfacl for user/group on other clients.\n"
271          "usage: rgetfacl [-dRLPvh] file ..."},
272         {"cp", lfs_cp, 0,
273          "Remote user copy files and directories.\n"
274          "usage: cp [OPTION]... [-T] SOURCE DEST\n\tcp [OPTION]... SOURCE... DIRECTORY\n\tcp [OPTION]... -t DIRECTORY SOURCE..."},
275         {"ls", lfs_ls, 0,
276          "Remote user list directory contents.\n"
277          "usage: ls [OPTION]... [FILE]..."},
278         {"changelog", lfs_changelog, 0,
279          "Show the metadata changes on an MDT."
280          "\nusage: changelog <mdtname> [startrec [endrec]]"},
281         {"changelog_clear", lfs_changelog_clear, 0,
282          "Indicate that old changelog records up to <endrec> are no longer of "
283          "interest to consumer <id>, allowing the system to free up space.\n"
284          "An <endrec> of 0 means all records.\n"
285          "usage: changelog_clear <mdtname> <id> <endrec>"},
286         {"fid2path", lfs_fid2path, 0,
287          "Resolve the full path(s) for given FID(s). For a specific hardlink "
288          "specify link number <linkno>.\n"
289         /* "For a historical link name, specify changelog record <recno>.\n" */
290          "usage: fid2path [--link <linkno>] <fsname|rootpath> <fid> ..."
291                 /* [ --rec <recno> ] */ },
292         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
293          "usage: path2fid <path> ..."},
294         {"data_version", lfs_data_version, 0, "Display file data version for "
295          "a given path.\n" "usage: data_version -[n|r|w] <path>"},
296         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
297          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
298         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
299          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
300          "[--archived] [--lost] <file> ..."},
301         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
302          "files.\n"
303          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
304          "[--archived] [--lost] <file> ..."},
305         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
306          "given files.\n" "usage: hsm_action <file> ..."},
307         {"hsm_archive", lfs_hsm_archive, 0,
308          "Archive file to external storage.\n"
309          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
310          "<file> ..."},
311         {"hsm_restore", lfs_hsm_restore, 0,
312          "Restore file from external storage.\n"
313          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
314         {"hsm_release", lfs_hsm_release, 0,
315          "Release files from Lustre.\n"
316          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
317         {"hsm_remove", lfs_hsm_remove, 0,
318          "Remove file copy from external storage.\n"
319          "usage: hsm_remove [--filelist FILELIST] [--data DATA] <file> ..."},
320         {"hsm_cancel", lfs_hsm_cancel, 0,
321          "Cancel requests related to specified files.\n"
322          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
323         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
324          "usage: swap_layouts <path1> <path2>"},
325         {"migrate", lfs_setstripe, 0, "migrate file from one OST layout to "
326          "another (may be not safe with concurent writes).\n"
327          SETSTRIPE_USAGE("migrate  ", "<filename>")},
328         {"mv", lfs_mv, 0,
329          "To move directories between MDTs.\n"
330          "usage: mv <directory|filename> [--mdt-index|-M] <mdt_index> "
331          "[--verbose|-v]\n"},
332         {"help", Parser_help, 0, "help"},
333         {"exit", Parser_quit, 0, "quit"},
334         {"quit", Parser_quit, 0, "quit"},
335         { 0, 0, 0, NULL }
336 };
337
338 #define MIGRATION_BLOCKS 1
339
340 static int lfs_migrate(char *name, unsigned long long stripe_size,
341                        int stripe_offset, int stripe_count,
342                        int stripe_pattern, char *pool_name,
343                        __u64 migration_flags)
344 {
345         int                      fd, fdv;
346         char                     volatile_file[PATH_MAX];
347         char                     parent[PATH_MAX];
348         char                    *ptr;
349         int                      rc;
350         __u64                    dv1;
351         struct lov_user_md      *lum = NULL;
352         int                      lumsz;
353         int                      bufsz;
354         void                    *buf = NULL;
355         int                      rsize, wsize;
356         __u64                    rpos, wpos, bufoff;
357         int                      gid = 0, sz;
358         int                      have_gl = 0;
359         struct stat              st, stv;
360
361         /* find the right size for the IO and allocate the buffer */
362         lumsz = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
363         lum = malloc(lumsz);
364         if (lum == NULL) {
365                 rc = -ENOMEM;
366                 goto free;
367         }
368
369         rc = llapi_file_get_stripe(name, lum);
370         /* failure can come from may case and some may be not real error
371          * (eg: no stripe)
372          * in case of a real error, a later call will failed with a better
373          * error management */
374         if (rc < 0)
375                 bufsz = 1024*1024;
376         else
377                 bufsz = lum->lmm_stripe_size;
378         rc = posix_memalign(&buf, getpagesize(), bufsz);
379         if (rc != 0) {
380                 rc = -rc;
381                 goto free;
382         }
383
384         if (migration_flags & MIGRATION_BLOCKS) {
385                 /* generate a random id for the grouplock */
386                 fd = open("/dev/urandom", O_RDONLY);
387                 if (fd == -1) {
388                         rc = -errno;
389                         fprintf(stderr, "cannot open /dev/urandom (%s)\n",
390                                 strerror(-rc));
391                         goto free;
392                 }
393                 sz = sizeof(gid);
394                 rc = read(fd, &gid, sz);
395                 close(fd);
396                 if (rc < sz) {
397                         rc = -errno;
398                         fprintf(stderr, "cannot read %d bytes from"
399                                 " /dev/urandom (%s)\n", sz, strerror(-rc));
400                         goto free;
401                 }
402         }
403
404         /* search for file directory pathname */
405         if (strlen(name) > sizeof(parent)-1) {
406                 rc = -E2BIG;
407                 goto free;
408         }
409         strncpy(parent, name, sizeof(parent));
410         ptr = strrchr(parent, '/');
411         if (ptr == NULL) {
412                 if (getcwd(parent, sizeof(parent)) == NULL) {
413                         rc = -errno;
414                         goto free;
415                 }
416         } else {
417                 if (ptr == parent)
418                         strcpy(parent, "/");
419                 else
420                         *ptr = '\0';
421         }
422         sprintf(volatile_file, "%s/%s::", parent, LUSTRE_VOLATILE_HDR);
423
424         /* create, open a volatile file, use caching (ie no directio) */
425         /* exclusive create is not needed because volatile files cannot
426          * conflict on name by construction */
427         fdv = llapi_file_open_pool(volatile_file, O_CREAT | O_WRONLY,
428                                    0644, stripe_size, stripe_offset,
429                                    stripe_count, stripe_pattern, pool_name);
430         if (fdv < 0) {
431                 rc = fdv;
432                 fprintf(stderr, "cannot create volatile file in %s (%s)\n",
433                         parent, strerror(-rc));
434                 goto free;
435         }
436
437         /* open file, direct io */
438         /* even if the file is only read, WR mode is nedeed to allow
439          * layout swap on fd */
440         fd = open(name, O_RDWR | O_DIRECT);
441         if (fd == -1) {
442                 rc = -errno;
443                 fprintf(stderr, "cannot open %s (%s)\n", name, strerror(-rc));
444                 close(fdv);
445                 goto free;
446         }
447
448         /* Not-owner (root?) special case.
449          * Need to set owner/group of volatile file like original.
450          * This will allow to pass related check during layout_swap.
451          */
452         rc = fstat(fd, &st);
453         if (rc != 0) {
454                 rc = -errno;
455                 fprintf(stderr, "cannot stat %s (%s)\n", name,
456                         strerror(errno));
457                 goto error;
458         }
459         rc = fstat(fdv, &stv);
460         if (rc != 0) {
461                 rc = -errno;
462                 fprintf(stderr, "cannot stat %s (%s)\n", volatile_file,
463                         strerror(errno));
464                 goto error;
465         }
466         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
467                 rc = fchown(fdv, st.st_uid, st.st_gid);
468                 if (rc != 0) {
469                         rc = -errno;
470                         fprintf(stderr, "cannot chown %s (%s)\n", name,
471                                 strerror(errno));
472                         goto error;
473                 }
474         }
475
476         /* get file data version */
477         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
478         if (rc != 0) {
479                 fprintf(stderr, "cannot get dataversion on %s (%s)\n",
480                         name, strerror(-rc));
481                 goto error;
482         }
483
484         if (migration_flags & MIGRATION_BLOCKS) {
485                 /* take group lock to limit concurent access
486                  * this will be no more needed when exclusive access will
487                  * be implemented (see LU-2919) */
488                 /* group lock is taken after data version read because it
489                  * blocks data version call */
490                 if (ioctl(fd, LL_IOC_GROUP_LOCK, gid) == -1) {
491                         rc = -errno;
492                         fprintf(stderr, "cannot get group lock on %s (%s)\n",
493                                 name, strerror(-rc));
494                         goto error;
495                 }
496                 have_gl = 1;
497         }
498
499         /* copy data */
500         rpos = 0;
501         wpos = 0;
502         bufoff = 0;
503         rsize = -1;
504         do {
505                 /* read new data only if we have written all
506                  * previously read data */
507                 if (wpos == rpos) {
508                         rsize = read(fd, buf, bufsz);
509                         if (rsize < 0) {
510                                 rc = -errno;
511                                 fprintf(stderr, "read failed on %s"
512                                         " (%s)\n", name,
513                                         strerror(-rc));
514                                 goto error;
515                         }
516                         rpos += rsize;
517                         bufoff = 0;
518                 }
519                 /* eof ? */
520                 if (rsize == 0)
521                         break;
522                 wsize = write(fdv, buf + bufoff, rpos - wpos);
523                 if (wsize < 0) {
524                         rc = -errno;
525                         fprintf(stderr, "write failed on volatile"
526                                 " for %s (%s)\n", name, strerror(-rc));
527                         goto error;
528                 }
529                 wpos += wsize;
530                 bufoff += wsize;
531         } while (1);
532
533         /* flush data */
534         fsync(fdv);
535
536         if (migration_flags & MIGRATION_BLOCKS) {
537                 /* give back group lock */
538                 if (ioctl(fd, LL_IOC_GROUP_UNLOCK, gid) == -1) {
539                         rc = -errno;
540                         fprintf(stderr, "cannot put group lock on %s (%s)\n",
541                                 name, strerror(-rc));
542                 }
543                 have_gl = 0;
544         }
545
546         /* swap layouts
547          * for a migration we need to:
548          * - check data version on file did not change
549          * - keep file mtime
550          * - keep file atime
551          */
552         rc = llapi_fswap_layouts(fd, fdv, dv1, 0,
553                                  SWAP_LAYOUTS_CHECK_DV1 |
554                                  SWAP_LAYOUTS_KEEP_MTIME |
555                                  SWAP_LAYOUTS_KEEP_ATIME);
556         if (rc == -EAGAIN) {
557                 fprintf(stderr, "%s: dataversion changed during copy, "
558                         "migration aborted\n", name);
559                 goto error;
560         }
561         if (rc != 0)
562                 fprintf(stderr, "%s: swap layout to new file failed: %s\n",
563                         name, strerror(-rc));
564
565 error:
566         /* give back group lock */
567         if ((migration_flags & MIGRATION_BLOCKS) && have_gl &&
568             (ioctl(fd, LL_IOC_GROUP_UNLOCK, gid) == -1)) {
569                 /* we keep in rc the original error */
570                 fprintf(stderr, "cannot put group lock on %s (%s)\n",
571                         name, strerror(-errno));
572         }
573
574         close(fdv);
575         close(fd);
576 free:
577         if (lum)
578                 free(lum);
579         if (buf)
580                 free(buf);
581         return rc;
582 }
583
584 /* functions */
585 static int lfs_setstripe(int argc, char **argv)
586 {
587         char                    *fname;
588         int                      result;
589         unsigned long long       st_size;
590         int                      st_offset, st_count;
591         char                    *end;
592         int                      c;
593         int                      delete = 0;
594         char                    *stripe_size_arg = NULL;
595         char                    *stripe_off_arg = NULL;
596         char                    *stripe_count_arg = NULL;
597         char                    *pool_name_arg = NULL;
598         unsigned long long       size_units = 1;
599         int                      migrate_mode = 0;
600         __u64                    migration_flags = 0;
601
602         struct option            long_opts[] = {
603                 /* valid only in migrate mode */
604                 {"block",        no_argument,       0, 'b'},
605 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
606                 /* This formerly implied "stripe-count", but was explicitly
607                  * made "stripe-count" for consistency with other options,
608                  * and to separate it from "mdt-count" when DNE arrives. */
609                 {"count",        required_argument, 0, 'c'},
610 #endif
611                 {"stripe-count", required_argument, 0, 'c'},
612                 {"stripe_count", required_argument, 0, 'c'},
613                 {"delete",       no_argument,       0, 'd'},
614 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
615                 /* This formerly implied "stripe-index", but was explicitly
616                  * made "stripe-index" for consistency with other options,
617                  * and to separate it from "mdt-index" when DNE arrives. */
618                 {"index",        required_argument, 0, 'i'},
619 #endif
620                 {"stripe-index", required_argument, 0, 'i'},
621                 {"stripe_index", required_argument, 0, 'i'},
622 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
623                 /* This formerly implied "stripe-index", but was confusing
624                  * with "file offset" (which will eventually be needed for
625                  * with different layouts by offset), so deprecate it. */
626                 {"offset",       required_argument, 0, 'o'},
627 #endif
628                 {"pool",         required_argument, 0, 'p'},
629 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
630                 /* This formerly implied "--stripe-size", but was confusing
631                  * with "lfs find --size|-s", which means "file size", so use
632                  * the consistent "--stripe-size|-S" for all commands. */
633                 {"size",         required_argument, 0, 's'},
634 #endif
635                 {"stripe-size",  required_argument, 0, 'S'},
636                 {"stripe_size",  required_argument, 0, 'S'},
637                 {0, 0, 0, 0}
638         };
639
640         st_size = 0;
641         st_offset = -1;
642         st_count = 0;
643
644         if (strcmp(argv[0], "migrate") == 0)
645                 migrate_mode = 1;
646
647         optind = 0;
648         while ((c = getopt_long(argc, argv, "c:di:o:p:s:S:",
649                                 long_opts, NULL)) >= 0) {
650                 switch (c) {
651                 case 0:
652                         /* Long options. */
653                         break;
654                 case 'b':
655                         if (migrate_mode == 0) {
656                                 fprintf(stderr, "--block is valid only for"
657                                                 " migrate mode");
658                                 return CMD_HELP;
659                         }
660                         migration_flags |= MIGRATION_BLOCKS;
661                         break;
662                 case 'c':
663 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
664                         if (strcmp(argv[optind - 1], "--count") == 0)
665                                 fprintf(stderr, "warning: '--count' deprecated"
666                                         ", use '--stripe-count' instead\n");
667 #endif
668                         stripe_count_arg = optarg;
669                         break;
670                 case 'd':
671                         /* delete the default striping pattern */
672                         delete = 1;
673                         break;
674 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
675                 case 'o':
676                         fprintf(stderr, "warning: '--offset|-o' deprecated, "
677                                 "use '--stripe-index|-i' instead\n");
678 #endif
679                 case 'i':
680 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
681                         if (strcmp(argv[optind - 1], "--index") == 0)
682                                 fprintf(stderr, "warning: '--index' deprecated"
683                                         ", use '--stripe-index' instead\n");
684 #endif
685                         stripe_off_arg = optarg;
686                         break;
687 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
688                 case 's':
689 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
690                         fprintf(stderr, "warning: '--size|-s' deprecated, "
691                                 "use '--stripe-size|-S' instead\n");
692 #endif
693 #endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0) */
694                 case 'S':
695                         stripe_size_arg = optarg;
696                         break;
697                 case 'p':
698                         pool_name_arg = optarg;
699                         break;
700                 default:
701                         return CMD_HELP;
702                 }
703         }
704
705         fname = argv[optind];
706
707         if (delete &&
708             (stripe_size_arg != NULL || stripe_off_arg != NULL ||
709              stripe_count_arg != NULL || pool_name_arg != NULL)) {
710                 fprintf(stderr, "error: %s: cannot specify -d with "
711                         "-s, -c, -o, or -p options\n",
712                         argv[0]);
713                 return CMD_HELP;
714         }
715
716         if (optind == argc) {
717                 fprintf(stderr, "error: %s: missing filename|dirname\n",
718                         argv[0]);
719                 return CMD_HELP;
720         }
721
722         /* get the stripe size */
723         if (stripe_size_arg != NULL) {
724                 result = llapi_parse_size(stripe_size_arg, &st_size,
725                                           &size_units, 0);
726                 if (result) {
727                         fprintf(stderr, "error: %s: bad stripe size '%s'\n",
728                                 argv[0], stripe_size_arg);
729                         return result;
730                 }
731         }
732         /* get the stripe offset */
733         if (stripe_off_arg != NULL) {
734                 st_offset = strtol(stripe_off_arg, &end, 0);
735                 if (*end != '\0') {
736                         fprintf(stderr, "error: %s: bad stripe offset '%s'\n",
737                                 argv[0], stripe_off_arg);
738                         return CMD_HELP;
739                 }
740         }
741         /* get the stripe count */
742         if (stripe_count_arg != NULL) {
743                 st_count = strtoul(stripe_count_arg, &end, 0);
744                 if (*end != '\0') {
745                         fprintf(stderr, "error: %s: bad stripe count '%s'\n",
746                                 argv[0], stripe_count_arg);
747                         return CMD_HELP;
748                 }
749         }
750
751         do {
752                 if (migrate_mode)
753                         result = lfs_migrate(fname, st_size, st_offset,
754                                              st_count, 0, pool_name_arg,
755                                              migration_flags);
756                 else
757                         result = llapi_file_create_pool(fname, st_size,
758                                                         st_offset, st_count,
759                                                         0, pool_name_arg);
760                 if (result) {
761                         fprintf(stderr,
762                                 "error: %s: %s stripe file '%s' failed\n",
763                                 argv[0], migrate_mode ? "migrate" : "create",
764                                 fname);
765                         break;
766                 }
767                 fname = argv[++optind];
768         } while (fname != NULL);
769
770         return result;
771 }
772
773 static int lfs_poollist(int argc, char **argv)
774 {
775         if (argc != 2)
776                 return CMD_HELP;
777
778         return llapi_poollist(argv[1]);
779 }
780
781 static int set_time(time_t *time, time_t *set, char *str)
782 {
783         time_t t;
784         int res = 0;
785
786         if (str[0] == '+')
787                 res = 1;
788         else if (str[0] == '-')
789                 res = -1;
790
791         if (res)
792                 str++;
793
794         t = strtol(str, NULL, 0);
795         if (*time < t * 24 * 60 * 60) {
796                 if (res)
797                         str--;
798                 fprintf(stderr, "Wrong time '%s' is specified.\n", str);
799                 return INT_MAX;
800         }
801
802         *set = *time - t * 24 * 60 * 60;
803         return res;
804 }
805
806 #define USER 0
807 #define GROUP 1
808
809 static int name2id(unsigned int *id, char *name, int type)
810 {
811         if (type == USER) {
812                 struct passwd *entry;
813
814                 if (!(entry = getpwnam(name))) {
815                         if (!errno)
816                                 errno = ENOENT;
817                         return -1;
818                 }
819
820                 *id = entry->pw_uid;
821         } else {
822                 struct group *entry;
823
824                 if (!(entry = getgrnam(name))) {
825                         if (!errno)
826                                 errno = ENOENT;
827                         return -1;
828                 }
829
830                 *id = entry->gr_gid;
831         }
832
833         return 0;
834 }
835
836 static int id2name(char **name, unsigned int id, int type)
837 {
838         if (type == USER) {
839                 struct passwd *entry;
840
841                 if (!(entry = getpwuid(id))) {
842                         if (!errno)
843                                 errno = ENOENT;
844                         return -1;
845                 }
846
847                 *name = entry->pw_name;
848         } else {
849                 struct group *entry;
850
851                 if (!(entry = getgrgid(id))) {
852                         if (!errno)
853                                 errno = ENOENT;
854                         return -1;
855                 }
856
857                 *name = entry->gr_name;
858         }
859
860         return 0;
861 }
862
863 static int name2layout(__u32 *layout, char *name)
864 {
865         char *ptr, *lyt;
866
867         *layout = 0;
868         for (ptr = name; ; ptr = NULL) {
869                 lyt = strtok(ptr, ",");
870                 if (lyt == NULL)
871                         break;
872                 if (strcmp(lyt, "released") == 0)
873                         *layout |= LOV_PATTERN_F_RELEASED;
874                 else if (strcmp(lyt, "raid0") == 0)
875                         *layout |= LOV_PATTERN_RAID0;
876                 else
877                         return -1;
878         }
879         return 0;
880 }
881
882 #define FIND_POOL_OPT 3
883 static int lfs_find(int argc, char **argv)
884 {
885         int c, ret;
886         time_t t;
887         struct find_param param = {
888                 .fp_max_depth = -1,
889                 .quiet = 1,
890         };
891         struct option long_opts[] = {
892                 {"atime",        required_argument, 0, 'A'},
893                 {"stripe-count", required_argument, 0, 'c'},
894                 {"stripe_count", required_argument, 0, 'c'},
895                 {"ctime",        required_argument, 0, 'C'},
896                 {"maxdepth",     required_argument, 0, 'D'},
897                 {"gid",          required_argument, 0, 'g'},
898                 {"group",        required_argument, 0, 'G'},
899                 {"stripe-index", required_argument, 0, 'i'},
900                 {"stripe_index", required_argument, 0, 'i'},
901                 {"layout",       required_argument, 0, 'L'},
902                 {"mdt",          required_argument, 0, 'm'},
903                 {"mtime",        required_argument, 0, 'M'},
904                 {"name",         required_argument, 0, 'n'},
905      /* reserve {"or",           no_argument,     , 0, 'o'}, to match find(1) */
906                 {"obd",          required_argument, 0, 'O'},
907                 {"ost",          required_argument, 0, 'O'},
908                 /* no short option for pool, p/P already used */
909                 {"pool",         required_argument, 0, FIND_POOL_OPT},
910                 {"print0",       no_argument,       0, 'p'},
911                 {"print",        no_argument,       0, 'P'},
912                 {"size",         required_argument, 0, 's'},
913                 {"stripe-size",  required_argument, 0, 'S'},
914                 {"stripe_size",  required_argument, 0, 'S'},
915                 {"type",         required_argument, 0, 't'},
916                 {"uid",          required_argument, 0, 'u'},
917                 {"user",         required_argument, 0, 'U'},
918                 {0, 0, 0, 0}
919         };
920         int pathstart = -1;
921         int pathend = -1;
922         int neg_opt = 0;
923         time_t *xtime;
924         int *xsign;
925         int isoption;
926         char *endptr;
927
928         time(&t);
929
930         optind = 0;
931         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
932         while ((c = getopt_long_only(argc, argv,
933                                      "-A:c:C:D:g:G:i:L:m:M:n:O:Ppqrs:S:t:u:U:v",
934                                      long_opts, NULL)) >= 0) {
935                 xtime = NULL;
936                 xsign = NULL;
937                 if (neg_opt)
938                         --neg_opt;
939                 /* '!' is part of option */
940                 /* when getopt_long_only() finds a string which is not
941                  * an option nor a known option argument it returns 1
942                  * in that case if we already have found pathstart and pathend
943                  * (i.e. we have the list of pathnames),
944                  * the only supported value is "!"
945                  */
946                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
947                 if (!isoption && pathend != -1) {
948                         fprintf(stderr, "err: %s: filename|dirname must either "
949                                         "precede options or follow options\n",
950                                         argv[0]);
951                         ret = CMD_HELP;
952                         goto err;
953                 }
954                 if (!isoption && pathstart == -1)
955                         pathstart = optind - 1;
956                 if (isoption && pathstart != -1 && pathend == -1)
957                         pathend = optind - 2;
958                 switch (c) {
959                 case 0:
960                         /* Long options. */
961                         break;
962                 case 1:
963                         /* unknown; opt is "!" or path component,
964                          * checking done above.
965                          */
966                         if (strcmp(optarg, "!") == 0)
967                                 neg_opt = 2;
968                         break;
969                 case 'A':
970                         xtime = &param.fp_atime;
971                         xsign = &param.fp_asign;
972                         param.fp_exclude_atime = !!neg_opt;
973                         /* no break, this falls through to 'C' for ctime */
974                 case 'C':
975                         if (c == 'C') {
976                                 xtime = &param.fp_ctime;
977                                 xsign = &param.fp_csign;
978                                 param.fp_exclude_ctime = !!neg_opt;
979                         }
980                         /* no break, this falls through to 'M' for mtime */
981                 case 'M':
982                         if (c == 'M') {
983                                 xtime = &param.fp_mtime;
984                                 xsign = &param.fp_msign;
985                                 param.fp_exclude_mtime = !!neg_opt;
986                         }
987                         ret = set_time(&t, xtime, optarg);
988                         if (ret == INT_MAX) {
989                                 ret = -1;
990                                 goto err;
991                         }
992                         if (ret)
993                                 *xsign = ret;
994                         break;
995                 case 'c':
996                         if (optarg[0] == '+') {
997                                 param.stripecount_sign = -1;
998                                 optarg++;
999                         } else if (optarg[0] == '-') {
1000                                 param.stripecount_sign =  1;
1001                                 optarg++;
1002                         }
1003
1004                         param.stripecount = strtoul(optarg, &endptr, 0);
1005                         if (*endptr != '\0') {
1006                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
1007                                         optarg);
1008                                 ret = -1;
1009                                 goto err;
1010                         }
1011                         param.check_stripecount = 1;
1012                         param.exclude_stripecount = !!neg_opt;
1013                         break;
1014                 case 'D':
1015                         param.fp_max_depth = strtol(optarg, 0, 0);
1016                         break;
1017                 case 'g':
1018                 case 'G':
1019                         ret = name2id(&param.fp_gid, optarg, GROUP);
1020                         if (ret) {
1021                                 param.fp_gid = strtoul(optarg, &endptr, 10);
1022                                 if (*endptr != '\0') {
1023                                         fprintf(stderr, "Group/GID: %s cannot "
1024                                                 "be found.\n", optarg);
1025                                         ret = -1;
1026                                         goto err;
1027                                 }
1028                         }
1029                         param.fp_exclude_gid = !!neg_opt;
1030                         param.fp_check_gid = 1;
1031                         break;
1032                 case 'L':
1033                         ret = name2layout(&param.layout, optarg);
1034                         if (ret)
1035                                 goto err;
1036                         param.exclude_layout = !!neg_opt;
1037                         param.check_layout = 1;
1038                         break;
1039                 case 'u':
1040                 case 'U':
1041                         ret = name2id(&param.fp_uid, optarg, USER);
1042                         if (ret) {
1043                                 param.fp_uid = strtoul(optarg, &endptr, 10);
1044                                 if (*endptr != '\0') {
1045                                         fprintf(stderr, "User/UID: %s cannot "
1046                                                 "be found.\n", optarg);
1047                                         ret = -1;
1048                                         goto err;
1049                                 }
1050                         }
1051                         param.fp_exclude_uid = !!neg_opt;
1052                         param.fp_check_uid = 1;
1053                         break;
1054                 case FIND_POOL_OPT:
1055                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
1056                                 fprintf(stderr,
1057                                         "Pool name %s is too long"
1058                                         " (max is %d)\n", optarg,
1059                                         LOV_MAXPOOLNAME);
1060                                 ret = -1;
1061                                 goto err;
1062                         }
1063                         /* we do check for empty pool because empty pool
1064                          * is used to find V1 lov attributes */
1065                         strncpy(param.poolname, optarg, LOV_MAXPOOLNAME);
1066                         param.poolname[LOV_MAXPOOLNAME] = '\0';
1067                         param.exclude_pool = !!neg_opt;
1068                         param.check_pool = 1;
1069                         break;
1070                 case 'n':
1071                         param.pattern = (char *)optarg;
1072                         param.exclude_pattern = !!neg_opt;
1073                         break;
1074                 case 'm':
1075                 case 'i':
1076                 case 'O': {
1077                         char *buf, *token, *next, *p;
1078                         int len = 1;
1079                         void *tmp;
1080
1081                         buf = strdup(optarg);
1082                         if (buf == NULL) {
1083                                 ret = -ENOMEM;
1084                                 goto err;
1085                         }
1086
1087                         param.exclude_obd = !!neg_opt;
1088
1089                         token = buf;
1090                         while (token && *token) {
1091                                 token = strchr(token, ',');
1092                                 if (token) {
1093                                         len++;
1094                                         token++;
1095                                 }
1096                         }
1097                         if (c == 'm') {
1098                                 param.exclude_mdt = !!neg_opt;
1099                                 param.num_alloc_mdts += len;
1100                                 tmp = realloc(param.mdtuuid,
1101                                               param.num_alloc_mdts *
1102                                               sizeof(*param.mdtuuid));
1103                                 if (tmp == NULL)
1104                                         GOTO(err_free, ret = -ENOMEM);
1105                                 param.mdtuuid = tmp;
1106                         } else {
1107                                 param.exclude_obd = !!neg_opt;
1108                                 param.num_alloc_obds += len;
1109                                 tmp = realloc(param.obduuid,
1110                                               param.num_alloc_obds *
1111                                               sizeof(*param.obduuid));
1112                                 if (tmp == NULL)
1113                                         GOTO(err_free, ret = -ENOMEM);
1114                                 param.obduuid = tmp;
1115                         }
1116                         for (token = buf; token && *token; token = next) {
1117                                 struct obd_uuid *puuid;
1118                                 if (c == 'm') {
1119                                         puuid =
1120                                           &param.mdtuuid[param.num_mdts++];
1121                                 } else {
1122                                         puuid =
1123                                           &param.obduuid[param.num_obds++];
1124                                 }
1125                                 p = strchr(token, ',');
1126                                 next = 0;
1127                                 if (p) {
1128                                         *p = 0;
1129                                         next = p+1;
1130                                 }
1131                                 if (strlen(token) > sizeof(puuid->uuid)-1)
1132                                         GOTO(err_free, ret = -E2BIG);
1133                                 strncpy(puuid->uuid, token,
1134                                         sizeof(puuid->uuid));
1135                         }
1136 err_free:
1137                         if (buf)
1138                                 free(buf);
1139                         break;
1140                 }
1141                 case 'p':
1142                         param.zeroend = 1;
1143                         break;
1144                 case 'P':
1145                         break;
1146                 case 's':
1147                         if (optarg[0] == '+') {
1148                                 param.size_sign = -1;
1149                                 optarg++;
1150                         } else if (optarg[0] == '-') {
1151                                 param.size_sign =  1;
1152                                 optarg++;
1153                         }
1154
1155                         ret = llapi_parse_size(optarg, &param.size,
1156                                                &param.size_units, 0);
1157                         if (ret) {
1158                                 fprintf(stderr, "error: bad file size '%s'\n",
1159                                         optarg);
1160                                 goto err;
1161                         }
1162                         param.check_size = 1;
1163                         param.exclude_size = !!neg_opt;
1164                         break;
1165                 case 'S':
1166                         if (optarg[0] == '+') {
1167                                 param.stripesize_sign = -1;
1168                                 optarg++;
1169                         } else if (optarg[0] == '-') {
1170                                 param.stripesize_sign =  1;
1171                                 optarg++;
1172                         }
1173
1174                         ret = llapi_parse_size(optarg, &param.stripesize,
1175                                                &param.stripesize_units, 0);
1176                         if (ret) {
1177                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
1178                                         optarg);
1179                                 goto err;
1180                         }
1181                         param.check_stripesize = 1;
1182                         param.exclude_stripesize = !!neg_opt;
1183                         break;
1184                 case 't':
1185                         param.fp_exclude_type = !!neg_opt;
1186                         switch (optarg[0]) {
1187                         case 'b':
1188                                 param.fp_type = S_IFBLK;
1189                                 break;
1190                         case 'c':
1191                                 param.fp_type = S_IFCHR;
1192                                 break;
1193                         case 'd':
1194                                 param.fp_type = S_IFDIR;
1195                                 break;
1196                         case 'f':
1197                                 param.fp_type = S_IFREG;
1198                                 break;
1199                         case 'l':
1200                                 param.fp_type = S_IFLNK;
1201                                 break;
1202                         case 'p':
1203                                 param.fp_type = S_IFIFO;
1204                                 break;
1205                         case 's':
1206                                 param.fp_type = S_IFSOCK;
1207                                 break;
1208                         default:
1209                                 fprintf(stderr, "error: %s: bad type '%s'\n",
1210                                         argv[0], optarg);
1211                                 ret = CMD_HELP;
1212                                 goto err;
1213                         };
1214                         break;
1215                 default:
1216                         ret = CMD_HELP;
1217                         goto err;
1218                 };
1219         }
1220
1221         if (pathstart == -1) {
1222                 fprintf(stderr, "error: %s: no filename|pathname\n",
1223                         argv[0]);
1224                 ret = CMD_HELP;
1225                 goto err;
1226         } else if (pathend == -1) {
1227                 /* no options */
1228                 pathend = argc;
1229         }
1230
1231         do {
1232                 ret = llapi_find(argv[pathstart], &param);
1233         } while (++pathstart < pathend && !ret);
1234
1235         if (ret)
1236                 fprintf(stderr, "error: %s failed for %s.\n",
1237                         argv[0], argv[optind - 1]);
1238 err:
1239         if (param.obduuid && param.num_alloc_obds)
1240                 free(param.obduuid);
1241
1242         if (param.mdtuuid && param.num_alloc_mdts)
1243                 free(param.mdtuuid);
1244
1245         return ret;
1246 }
1247
1248 static int lfs_getstripe_internal(int argc, char **argv,
1249                                   struct find_param *param)
1250 {
1251         struct option long_opts[] = {
1252 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
1253                 /* This formerly implied "stripe-count", but was explicitly
1254                  * made "stripe-count" for consistency with other options,
1255                  * and to separate it from "mdt-count" when DNE arrives. */
1256                 {"count",               no_argument,            0, 'c'},
1257 #endif
1258                 {"stripe-count",        no_argument,            0, 'c'},
1259                 {"stripe_count",        no_argument,            0, 'c'},
1260                 {"directory",           no_argument,            0, 'd'},
1261                 {"default",             no_argument,            0, 'D'},
1262                 {"generation",          no_argument,            0, 'g'},
1263 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
1264                 /* This formerly implied "stripe-index", but was explicitly
1265                  * made "stripe-index" for consistency with other options,
1266                  * and to separate it from "mdt-index" when DNE arrives. */
1267                 {"index",               no_argument,            0, 'i'},
1268 #endif
1269                 {"stripe-index",        no_argument,            0, 'i'},
1270                 {"stripe_index",        no_argument,            0, 'i'},
1271                 {"layout",              no_argument,            0, 'L'},
1272                 {"mdt-index",           no_argument,            0, 'M'},
1273                 {"mdt_index",           no_argument,            0, 'M'},
1274 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
1275                 /* This formerly implied "stripe-index", but was confusing
1276                  * with "file offset" (which will eventually be needed for
1277                  * with different layouts by offset), so deprecate it. */
1278                 {"offset",              no_argument,            0, 'o'},
1279 #endif
1280                 {"obd",                 required_argument,      0, 'O'},
1281                 {"ost",                 required_argument,      0, 'O'},
1282                 {"pool",                no_argument,            0, 'p'},
1283                 {"quiet",               no_argument,            0, 'q'},
1284                 {"recursive",           no_argument,            0, 'r'},
1285                 {"raw",                 no_argument,            0, 'R'},
1286 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
1287                 /* This formerly implied "--stripe-size", but was confusing
1288                  * with "lfs find --size|-s", which means "file size", so use
1289                  * the consistent "--stripe-size|-S" for all commands. */
1290                 {"size",                no_argument,            0, 's'},
1291 #endif
1292                 {"stripe-size",         no_argument,            0, 'S'},
1293                 {"stripe_size",         no_argument,            0, 'S'},
1294                 {"verbose",             no_argument,            0, 'v'},
1295                 {0, 0, 0, 0}
1296         };
1297         int c, rc;
1298
1299         param->fp_max_depth = 1;
1300         optind = 0;
1301         while ((c = getopt_long(argc, argv, "cdDghiLMoO:pqrRsSv",
1302                                 long_opts, NULL)) != -1) {
1303                 switch (c) {
1304                 case 'O':
1305                         if (param->obduuid) {
1306                                 fprintf(stderr,
1307                                         "error: %s: only one obduuid allowed",
1308                                         argv[0]);
1309                                 return CMD_HELP;
1310                         }
1311                         param->obduuid = (struct obd_uuid *)optarg;
1312                         break;
1313                 case 'q':
1314                         param->quiet++;
1315                         break;
1316                 case 'd':
1317                         param->fp_max_depth = 0;
1318                         break;
1319                 case 'D':
1320                         param->get_default_lmv = 1;
1321                         break;
1322                 case 'r':
1323                         param->recursive = 1;
1324                         break;
1325                 case 'v':
1326                         param->verbose = VERBOSE_ALL | VERBOSE_DETAIL;
1327                         break;
1328                 case 'c':
1329 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
1330                         if (strcmp(argv[optind - 1], "--count") == 0)
1331                                 fprintf(stderr, "warning: '--count' deprecated,"
1332                                         " use '--stripe-count' instead\n");
1333 #endif
1334                         if (!(param->verbose & VERBOSE_DETAIL)) {
1335                                 param->verbose |= VERBOSE_COUNT;
1336                                 param->fp_max_depth = 0;
1337                         }
1338                         break;
1339 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
1340                 case 's':
1341 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
1342                         fprintf(stderr, "warning: '--size|-s' deprecated, "
1343                                 "use '--stripe-size|-S' instead\n");
1344 #endif
1345 #endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0) */
1346                 case 'S':
1347                         if (!(param->verbose & VERBOSE_DETAIL)) {
1348                                 param->verbose |= VERBOSE_SIZE;
1349                                 param->fp_max_depth = 0;
1350                         }
1351                         break;
1352 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 53, 0)
1353                 case 'o':
1354                         fprintf(stderr, "warning: '--offset|-o' deprecated, "
1355                                 "use '--stripe-index|-i' instead\n");
1356 #endif
1357                 case 'i':
1358 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
1359                         if (strcmp(argv[optind - 1], "--index") == 0)
1360                                 fprintf(stderr, "warning: '--index' deprecated"
1361                                         ", use '--stripe-index' instead\n");
1362 #endif
1363                         if (!(param->verbose & VERBOSE_DETAIL)) {
1364                                 param->verbose |= VERBOSE_OFFSET;
1365                                 param->fp_max_depth = 0;
1366                         }
1367                         break;
1368                 case 'p':
1369                         if (!(param->verbose & VERBOSE_DETAIL)) {
1370                                 param->verbose |= VERBOSE_POOL;
1371                                 param->fp_max_depth = 0;
1372                         }
1373                         break;
1374                 case 'g':
1375                         if (!(param->verbose & VERBOSE_DETAIL)) {
1376                                 param->verbose |= VERBOSE_GENERATION;
1377                                 param->fp_max_depth = 0;
1378                         }
1379                         break;
1380                 case 'L':
1381                         if (!(param->verbose & VERBOSE_DETAIL)) {
1382                                 param->verbose |= VERBOSE_LAYOUT;
1383                                 param->fp_max_depth = 0;
1384                         }
1385                         break;
1386                 case 'M':
1387                         if (!(param->verbose & VERBOSE_DETAIL))
1388                                 param->fp_max_depth = 0;
1389                         param->verbose |= VERBOSE_MDTINDEX;
1390                         break;
1391                 case 'R':
1392                         param->raw = 1;
1393                         break;
1394                 default:
1395                         return CMD_HELP;
1396                 }
1397         }
1398
1399         if (optind >= argc)
1400                 return CMD_HELP;
1401
1402         if (param->recursive)
1403                 param->fp_max_depth = -1;
1404
1405         if (!param->verbose)
1406                 param->verbose = VERBOSE_ALL;
1407         if (param->quiet)
1408                 param->verbose = VERBOSE_OBJID;
1409
1410         do {
1411                 rc = llapi_getstripe(argv[optind], param);
1412         } while (++optind < argc && !rc);
1413
1414         if (rc)
1415                 fprintf(stderr, "error: %s failed for %s.\n",
1416                         argv[0], argv[optind - 1]);
1417         return rc;
1418 }
1419
1420 static int lfs_tgts(int argc, char **argv)
1421 {
1422         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
1423         struct find_param param;
1424         int index = 0, rc=0;
1425
1426         if (argc > 2)
1427                 return CMD_HELP;
1428
1429         if (argc == 2 && !realpath(argv[1], path)) {
1430                 rc = -errno;
1431                 fprintf(stderr, "error: invalid path '%s': %s\n",
1432                         argv[1], strerror(-rc));
1433                 return rc;
1434         }
1435
1436         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
1437                 /* Check if we have a mount point */
1438                 if (mntdir[0] == '\0')
1439                         continue;
1440
1441                 memset(&param, 0, sizeof(param));
1442                 if (!strcmp(argv[0], "mdts"))
1443                         param.get_lmv = 1;
1444
1445                 rc = llapi_ostlist(mntdir, &param);
1446                 if (rc) {
1447                         fprintf(stderr, "error: %s: failed on %s\n",
1448                                 argv[0], mntdir);
1449                 }
1450                 if (path[0] != '\0')
1451                         break;
1452                 memset(mntdir, 0, PATH_MAX);
1453         }
1454
1455         return rc;
1456 }
1457
1458 static int lfs_getstripe(int argc, char **argv)
1459 {
1460         struct find_param param = { 0 };
1461         return lfs_getstripe_internal(argc, argv, &param);
1462 }
1463
1464 /* functions */
1465 static int lfs_getdirstripe(int argc, char **argv)
1466 {
1467         struct find_param param = { 0 };
1468
1469         param.get_lmv = 1;
1470         return lfs_getstripe_internal(argc, argv, &param);
1471 }
1472
1473 /* functions */
1474 static int lfs_setdirstripe(int argc, char **argv)
1475 {
1476         char                    *dname;
1477         int                     result;
1478         unsigned int            stripe_offset = -1;
1479         unsigned int            stripe_count = 1;
1480         enum lmv_hash_type      hash_type;
1481         char                    *end;
1482         int                     c;
1483         char                    *stripe_offset_opt = NULL;
1484         char                    *stripe_count_opt = NULL;
1485         char                    *stripe_hash_opt = NULL;
1486         int                     default_stripe = 0;
1487
1488         struct option long_opts[] = {
1489                 {"count",       required_argument, 0, 'c'},
1490                 {"index",       required_argument, 0, 'i'},
1491                 {"hash-type",   required_argument, 0, 't'},
1492                 {"default_stripe", required_argument, 0, 'D'},
1493                 {0, 0, 0, 0}
1494         };
1495
1496         optind = 0;
1497
1498         while ((c = getopt_long(argc, argv, "c:Di:t:", long_opts, NULL)) >= 0) {
1499                 switch (c) {
1500                 case 0:
1501                         /* Long options. */
1502                         break;
1503                 case 'c':
1504                         stripe_count_opt = optarg;
1505                         break;
1506                 case 'D':
1507                         default_stripe = 1;
1508                         break;
1509                 case 'i':
1510                         stripe_offset_opt = optarg;
1511                         break;
1512                 case 't':
1513                         stripe_hash_opt = optarg;
1514                         break;
1515                 default:
1516                         fprintf(stderr, "error: %s: option '%s' "
1517                                         "unrecognized\n",
1518                                         argv[0], argv[optind - 1]);
1519                         return CMD_HELP;
1520                 }
1521         }
1522
1523         if (optind == argc) {
1524                 fprintf(stderr, "error: %s: missing dirname\n",
1525                         argv[0]);
1526                 return CMD_HELP;
1527         }
1528
1529         if (stripe_offset_opt == NULL && stripe_count_opt == NULL) {
1530                 fprintf(stderr, "error: %s: missing stripe offset and count.\n",
1531                         argv[0]);
1532                 return CMD_HELP;
1533         }
1534
1535         if (stripe_offset_opt != NULL) {
1536                 /* get the stripe offset */
1537                 stripe_offset = strtoul(stripe_offset_opt, &end, 0);
1538                 if (*end != '\0') {
1539                         fprintf(stderr, "error: %s: bad stripe offset '%s'\n",
1540                                 argv[0], stripe_offset_opt);
1541                         return CMD_HELP;
1542                 }
1543         }
1544
1545         if (stripe_hash_opt == NULL ||
1546             strcmp(stripe_hash_opt, LMV_HASH_NAME_FNV_1A_64) == 0) {
1547                 hash_type = LMV_HASH_TYPE_FNV_1A_64;
1548         } else if (strcmp(stripe_hash_opt, LMV_HASH_NAME_ALL_CHARS) == 0) {
1549                 hash_type = LMV_HASH_TYPE_ALL_CHARS;
1550         } else {
1551                 fprintf(stderr, "error: %s: bad stripe hash type '%s'\n",
1552                         argv[0], stripe_hash_opt);
1553                 return CMD_HELP;
1554         }
1555
1556         /* get the stripe count */
1557         if (stripe_count_opt != NULL) {
1558                 stripe_count = strtoul(stripe_count_opt, &end, 0);
1559                 if (*end != '\0') {
1560                         fprintf(stderr, "error: %s: bad stripe count '%s'\n",
1561                                 argv[0], stripe_count_opt);
1562                         return CMD_HELP;
1563                 }
1564         }
1565
1566         dname = argv[optind];
1567         do {
1568                 if (default_stripe == 1) {
1569                         result = llapi_dir_set_default_lmv_stripe(dname,
1570                                                     stripe_offset, stripe_count,
1571                                                     hash_type, NULL);
1572                 } else {
1573                         result = llapi_dir_create_pool(dname, 0, stripe_offset,
1574                                                        stripe_count, hash_type,
1575                                                        NULL);
1576                 }
1577
1578                 if (result) {
1579                         fprintf(stderr, "error: %s: create stripe dir '%s' "
1580                                 "failed\n", argv[0], dname);
1581                         break;
1582                 }
1583                 dname = argv[++optind];
1584         } while (dname != NULL);
1585
1586         return result;
1587 }
1588
1589 /* functions */
1590 static int lfs_rmentry(int argc, char **argv)
1591 {
1592         char *dname;
1593         int   index;
1594         int   result = 0;
1595
1596         if (argc <= 1) {
1597                 fprintf(stderr, "error: %s: missing dirname\n",
1598                         argv[0]);
1599                 return CMD_HELP;
1600         }
1601
1602         index = 1;
1603         dname = argv[index];
1604         while (dname != NULL) {
1605                 result = llapi_direntry_remove(dname);
1606                 if (result) {
1607                         fprintf(stderr, "error: %s: remove dir entry '%s' "
1608                                 "failed\n", argv[0], dname);
1609                         break;
1610                 }
1611                 dname = argv[++index];
1612         }
1613         return result;
1614 }
1615
1616 static int lfs_mv(int argc, char **argv)
1617 {
1618         struct  find_param param = {
1619                 .fp_max_depth = -1,
1620                 .mdtindex = -1,
1621         };
1622         char   *end;
1623         int     c;
1624         int     rc = 0;
1625         struct option long_opts[] = {
1626                 {"--mdt-index", required_argument, 0, 'M'},
1627                 {"verbose",     no_argument,       0, 'v'},
1628                 {0, 0, 0, 0}
1629         };
1630
1631         while ((c = getopt_long(argc, argv, "M:v", long_opts, NULL)) != -1) {
1632                 switch (c) {
1633                 case 'M': {
1634                         param.mdtindex = strtoul(optarg, &end, 0);
1635                         if (*end != '\0') {
1636                                 fprintf(stderr, "%s: invalid MDT index'%s'\n",
1637                                         argv[0], optarg);
1638                                 return CMD_HELP;
1639                         }
1640                         break;
1641                 }
1642                 case 'v': {
1643                         param.verbose = VERBOSE_DETAIL;
1644                         break;
1645                 }
1646                 default:
1647                         fprintf(stderr, "error: %s: unrecognized option '%s'\n",
1648                                 argv[0], argv[optind - 1]);
1649                         return CMD_HELP;
1650                 }
1651         }
1652
1653         if (param.mdtindex == -1) {
1654                 fprintf(stderr, "%s MDT index must be indicated\n", argv[0]);
1655                 return CMD_HELP;
1656         }
1657
1658         if (optind >= argc) {
1659                 fprintf(stderr, "%s missing operand path\n", argv[0]);
1660                 return CMD_HELP;
1661         }
1662
1663         param.migrate = 1;
1664         rc = llapi_mv(argv[optind], &param);
1665         if (rc != 0)
1666                 fprintf(stderr, "cannot migrate '%s' to MDT%04x: %s\n",
1667                         argv[optind], param.mdtindex, strerror(-rc));
1668         return rc;
1669 }
1670
1671 static int lfs_osts(int argc, char **argv)
1672 {
1673         return lfs_tgts(argc, argv);
1674 }
1675
1676 static int lfs_mdts(int argc, char **argv)
1677 {
1678         return lfs_tgts(argc, argv);
1679 }
1680
1681 #define COOK(value)                                                     \
1682 ({                                                                      \
1683         int radix = 0;                                                  \
1684         while (value > 1024) {                                          \
1685                 value /= 1024;                                          \
1686                 radix++;                                                \
1687         }                                                               \
1688         radix;                                                          \
1689 })
1690 #define UUF     "%-20s"
1691 #define CSF     "%11s"
1692 #define CDF     "%11llu"
1693 #define HDF     "%8.1f%c"
1694 #define RSF     "%4s"
1695 #define RDF     "%3d%%"
1696
1697 static int showdf(char *mntdir, struct obd_statfs *stat,
1698                   char *uuid, int ishow, int cooked,
1699                   char *type, int index, int rc)
1700 {
1701         long long avail, used, total;
1702         double ratio = 0;
1703         char *suffix = "KMGTPEZY";
1704         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
1705         char tbuf[20], ubuf[20], abuf[20], rbuf[20];
1706
1707         if (!uuid || !stat)
1708                 return -EINVAL;
1709
1710         switch (rc) {
1711         case 0:
1712                 if (ishow) {
1713                         avail = stat->os_ffree;
1714                         used = stat->os_files - stat->os_ffree;
1715                         total = stat->os_files;
1716                 } else {
1717                         int shift = cooked ? 0 : 10;
1718
1719                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
1720                         used  = ((stat->os_blocks - stat->os_bfree) *
1721                                  stat->os_bsize) >> shift;
1722                         total = (stat->os_blocks * stat->os_bsize) >> shift;
1723                 }
1724
1725                 if ((used + avail) > 0)
1726                         ratio = (double)used / (double)(used + avail);
1727
1728                 if (cooked) {
1729                         int i;
1730                         double cook_val;
1731
1732                         cook_val = (double)total;
1733                         i = COOK(cook_val);
1734                         if (i > 0)
1735                                 sprintf(tbuf, HDF, cook_val, suffix[i - 1]);
1736                         else
1737                                 sprintf(tbuf, CDF, total);
1738
1739                         cook_val = (double)used;
1740                         i = COOK(cook_val);
1741                         if (i > 0)
1742                                 sprintf(ubuf, HDF, cook_val, suffix[i - 1]);
1743                         else
1744                                 sprintf(ubuf, CDF, used);
1745
1746                         cook_val = (double)avail;
1747                         i = COOK(cook_val);
1748                         if (i > 0)
1749                                 sprintf(abuf, HDF, cook_val, suffix[i - 1]);
1750                         else
1751                                 sprintf(abuf, CDF, avail);
1752                 } else {
1753                         sprintf(tbuf, CDF, total);
1754                         sprintf(ubuf, CDF, used);
1755                         sprintf(abuf, CDF, avail);
1756                 }
1757
1758                 sprintf(rbuf, RDF, (int)(ratio * 100 + 0.5));
1759                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
1760                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
1761                 if (type)
1762                         printf("[%s:%d]\n", type, index);
1763                 else
1764                         printf("\n");
1765
1766                 break;
1767         case -ENODATA:
1768                 printf(UUF": inactive device\n", uuid);
1769                 break;
1770         default:
1771                 printf(UUF": %s\n", uuid, strerror(-rc));
1772                 break;
1773         }
1774
1775         return 0;
1776 }
1777
1778 struct ll_stat_type {
1779         int   st_op;
1780         char *st_name;
1781 };
1782
1783 static int mntdf(char *mntdir, char *fsname, char *pool, int ishow,
1784                 int cooked, int lazy)
1785 {
1786         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
1787         struct obd_uuid uuid_buf;
1788         char *poolname = NULL;
1789         struct ll_stat_type types[] = { { LL_STATFS_LMV, "MDT" },
1790                                         { LL_STATFS_LOV, "OST" },
1791                                         { 0, NULL } };
1792         struct ll_stat_type *tp;
1793         __u64 ost_ffree = 0;
1794         __u32 index;
1795         __u32 type;
1796         int rc;
1797
1798         if (pool) {
1799                 poolname = strchr(pool, '.');
1800                 if (poolname != NULL) {
1801                         if (strncmp(fsname, pool, strlen(fsname))) {
1802                                 fprintf(stderr, "filesystem name incorrect\n");
1803                                 return -ENODEV;
1804                         }
1805                         poolname++;
1806                 } else
1807                         poolname = pool;
1808         }
1809
1810         if (ishow)
1811                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
1812                        "UUID", "Inodes", "IUsed", "IFree",
1813                        "IUse%", "Mounted on");
1814         else
1815                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
1816                        "UUID", cooked ? "bytes" : "1K-blocks",
1817                        "Used", "Available", "Use%", "Mounted on");
1818
1819         for (tp = types; tp->st_name != NULL; tp++) {
1820                 for (index = 0; ; index++) {
1821                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
1822                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
1823                         type = lazy ? tp->st_op | LL_STATFS_NODELAY : tp->st_op;
1824                         rc = llapi_obd_statfs(mntdir, type, index,
1825                                               &stat_buf, &uuid_buf);
1826                         if (rc == -ENODEV)
1827                                 break;
1828
1829                         if (poolname && tp->st_op == LL_STATFS_LOV &&
1830                             llapi_search_ost(fsname, poolname,
1831                                              obd_uuid2str(&uuid_buf)) != 1)
1832                                 continue;
1833
1834                         /* the llapi_obd_statfs() call may have returned with
1835                          * an error, but if it filled in uuid_buf we will at
1836                          * lease use that to print out a message for that OBD.
1837                          * If we didn't get anything in the uuid_buf, then fill
1838                          * it in so that we can print an error message. */
1839                         if (uuid_buf.uuid[0] == '\0')
1840                                 sprintf(uuid_buf.uuid, "%s%04x",
1841                                         tp->st_name, index);
1842                         showdf(mntdir, &stat_buf, obd_uuid2str(&uuid_buf),
1843                                ishow, cooked, tp->st_name, index, rc);
1844
1845                         if (rc == 0) {
1846                                 if (tp->st_op == LL_STATFS_LMV) {
1847                                         sum.os_ffree += stat_buf.os_ffree;
1848                                         sum.os_files += stat_buf.os_files;
1849                                 } else /* if (tp->st_op == LL_STATFS_LOV) */ {
1850                                         sum.os_blocks += stat_buf.os_blocks *
1851                                                 stat_buf.os_bsize;
1852                                         sum.os_bfree  += stat_buf.os_bfree *
1853                                                 stat_buf.os_bsize;
1854                                         sum.os_bavail += stat_buf.os_bavail *
1855                                                 stat_buf.os_bsize;
1856                                         ost_ffree += stat_buf.os_ffree;
1857                                 }
1858                         } else if (rc == -EINVAL || rc == -EFAULT) {
1859                                 break;
1860                         }
1861                 }
1862         }
1863
1864         /* If we don't have as many objects free on the OST as inodes
1865          * on the MDS, we reduce the total number of inodes to
1866          * compensate, so that the "inodes in use" number is correct.
1867          * Matches ll_statfs_internal() so the results are consistent. */
1868         if (ost_ffree < sum.os_ffree) {
1869                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
1870                 sum.os_ffree = ost_ffree;
1871         }
1872         printf("\n");
1873         showdf(mntdir, &sum, "filesystem summary:", ishow, cooked, NULL, 0, 0);
1874         printf("\n");
1875         return 0;
1876 }
1877
1878 static int lfs_df(int argc, char **argv)
1879 {
1880         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
1881         int ishow = 0, cooked = 0;
1882         int lazy = 0;
1883         int c, rc = 0, index = 0;
1884         char fsname[PATH_MAX] = "", *pool_name = NULL;
1885         struct option long_opts[] = {
1886                 {"pool", required_argument, 0, 'p'},
1887                 {"lazy", 0, 0, 'l'},
1888                 {0, 0, 0, 0}
1889         };
1890
1891         optind = 0;
1892         while ((c = getopt_long(argc, argv, "hilp:", long_opts, NULL)) != -1) {
1893                 switch (c) {
1894                 case 'i':
1895                         ishow = 1;
1896                         break;
1897                 case 'h':
1898                         cooked = 1;
1899                         break;
1900                 case 'l':
1901                         lazy = 1;
1902                         break;
1903                 case 'p':
1904                         pool_name = optarg;
1905                         break;
1906                 default:
1907                         return CMD_HELP;
1908                 }
1909         }
1910         if (optind < argc && !realpath(argv[optind], path)) {
1911                 rc = -errno;
1912                 fprintf(stderr, "error: invalid path '%s': %s\n",
1913                         argv[optind], strerror(-rc));
1914                 return rc;
1915         }
1916
1917         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
1918                 /* Check if we have a mount point */
1919                 if (mntdir[0] == '\0')
1920                         continue;
1921
1922                 rc = mntdf(mntdir, fsname, pool_name, ishow, cooked, lazy);
1923                 if (rc || path[0] != '\0')
1924                         break;
1925                 fsname[0] = '\0'; /* avoid matching in next loop */
1926                 mntdir[0] = '\0'; /* avoid matching in next loop */
1927         }
1928
1929         return rc;
1930 }
1931
1932 static int lfs_getname(int argc, char **argv)
1933 {
1934         char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
1935         int rc = 0, index = 0, c;
1936         char buf[sizeof(struct obd_uuid)];
1937
1938         optind = 0;
1939         while ((c = getopt(argc, argv, "h")) != -1)
1940                 return CMD_HELP;
1941
1942         if (optind == argc) { /* no paths specified, get all paths. */
1943                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
1944                         rc = llapi_getname(mntdir, buf, sizeof(buf));
1945                         if (rc < 0) {
1946                                 fprintf(stderr,
1947                                         "cannot get name for `%s': %s\n",
1948                                         mntdir, strerror(-rc));
1949                                 break;
1950                         }
1951
1952                         printf("%s %s\n", buf, mntdir);
1953
1954                         path[0] = fsname[0] = mntdir[0] = 0;
1955                 }
1956         } else { /* paths specified, only attempt to search these. */
1957                 for (; optind < argc; optind++) {
1958                         rc = llapi_getname(argv[optind], buf, sizeof(buf));
1959                         if (rc < 0) {
1960                                 fprintf(stderr,
1961                                         "cannot get name for `%s': %s\n",
1962                                         argv[optind], strerror(-rc));
1963                                 break;
1964                         }
1965
1966                         printf("%s %s\n", buf, argv[optind]);
1967                 }
1968         }
1969         return rc;
1970 }
1971
1972 static int lfs_check(int argc, char **argv)
1973 {
1974         int rc;
1975         char mntdir[PATH_MAX] = {'\0'};
1976         int num_types = 1;
1977         char *obd_types[2];
1978         char obd_type1[4];
1979         char obd_type2[4];
1980
1981         if (argc != 2)
1982                 return CMD_HELP;
1983
1984         obd_types[0] = obd_type1;
1985         obd_types[1] = obd_type2;
1986
1987         if (strcmp(argv[1], "osts") == 0) {
1988                 strcpy(obd_types[0], "osc");
1989         } else if (strcmp(argv[1], "mds") == 0) {
1990                 strcpy(obd_types[0], "mdc");
1991         } else if (strcmp(argv[1], "servers") == 0) {
1992                 num_types = 2;
1993                 strcpy(obd_types[0], "osc");
1994                 strcpy(obd_types[1], "mdc");
1995         } else {
1996                 fprintf(stderr, "error: %s: option '%s' unrecognized\n",
1997                                 argv[0], argv[1]);
1998                         return CMD_HELP;
1999         }
2000
2001         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
2002         if (rc < 0 || mntdir[0] == '\0') {
2003                 fprintf(stderr, "No suitable Lustre mount found\n");
2004                 return rc;
2005         }
2006
2007         rc = llapi_target_iterate(num_types, obd_types,
2008                                   mntdir, llapi_ping_target);
2009
2010         if (rc)
2011                 fprintf(stderr, "error: %s: %s status failed\n",
2012                                 argv[0],argv[1]);
2013
2014         return rc;
2015
2016 }
2017
2018 static int lfs_join(int argc, char **argv)
2019 {
2020         fprintf(stderr, "join two lustre files into one.\n"
2021                         "obsolete, HEAD does not support it anymore.\n");
2022         return 0;
2023 }
2024
2025 #ifdef HAVE_SYS_QUOTA_H
2026 static int lfs_quotacheck(int argc, char **argv)
2027 {
2028         int c, check_type = 0;
2029         char *mnt;
2030         struct if_quotacheck qchk;
2031         struct if_quotactl qctl;
2032         char *obd_type = (char *)qchk.obd_type;
2033         int rc;
2034
2035         memset(&qchk, 0, sizeof(qchk));
2036
2037         optind = 0;
2038         while ((c = getopt(argc, argv, "gu")) != -1) {
2039                 switch (c) {
2040                 case 'u':
2041                         check_type |= 0x01;
2042                         break;
2043                 case 'g':
2044                         check_type |= 0x02;
2045                         break;
2046                 default:
2047                         fprintf(stderr, "error: %s: option '-%c' "
2048                                         "unrecognized\n", argv[0], c);
2049                         return CMD_HELP;
2050                 }
2051         }
2052
2053         if (check_type)
2054                 check_type--;
2055         else    /* do quotacheck for both user & group quota by default */
2056                 check_type = 0x02;
2057
2058         if (argc == optind)
2059                 return CMD_HELP;
2060
2061         mnt = argv[optind];
2062
2063         rc = llapi_quotacheck(mnt, check_type);
2064         if (rc == -EOPNOTSUPP) {
2065                 fprintf(stderr, "error: quotacheck not supported by the quota "
2066                         "master.\nPlease note that quotacheck is deprecated as "
2067                         "of lustre 2.4.0 since space accounting is always "
2068                         "enabled.\nFilesystems not formatted with 2.4 utils or "
2069                         "beyond can be upgraded with tunefs.lustre --quota.\n");
2070                 return rc;
2071         } else if (rc) {
2072                 fprintf(stderr, "quotacheck failed: %s\n", strerror(-rc));
2073                 return rc;
2074         }
2075
2076         rc = llapi_poll_quotacheck(mnt, &qchk);
2077         if (rc) {
2078                 if (*obd_type)
2079                         fprintf(stderr, "%s %s ", obd_type,
2080                                 obd_uuid2str(&qchk.obd_uuid));
2081                 fprintf(stderr, "quota check failed: %s\n", strerror(-rc));
2082                 return rc;
2083         }
2084
2085         memset(&qctl, 0, sizeof(qctl));
2086         qctl.qc_cmd = LUSTRE_Q_QUOTAON;
2087         qctl.qc_type = check_type;
2088         rc = llapi_quotactl(mnt, &qctl);
2089         if (rc && rc != -EALREADY) {
2090                 if (*obd_type)
2091                         fprintf(stderr, "%s %s ", (char *)qctl.obd_type,
2092                                 obd_uuid2str(&qctl.obd_uuid));
2093                 fprintf(stderr, "%s turn on quota failed: %s\n",
2094                         argv[0], strerror(-rc));
2095                 return rc;
2096         }
2097
2098         return 0;
2099 }
2100
2101 static int lfs_quotaon(int argc, char **argv)
2102 {
2103         int c;
2104         char *mnt;
2105         struct if_quotactl qctl;
2106         char *obd_type = (char *)qctl.obd_type;
2107         int rc;
2108
2109         memset(&qctl, 0, sizeof(qctl));
2110         qctl.qc_cmd = LUSTRE_Q_QUOTAON;
2111
2112         optind = 0;
2113         while ((c = getopt(argc, argv, "fgu")) != -1) {
2114                 switch (c) {
2115                 case 'u':
2116                         qctl.qc_type |= 0x01;
2117                         break;
2118                 case 'g':
2119                         qctl.qc_type |= 0x02;
2120                         break;
2121                 case 'f':
2122                         qctl.qc_cmd = LUSTRE_Q_QUOTAOFF;
2123                         break;
2124                 default:
2125                         fprintf(stderr, "error: %s: option '-%c' "
2126                                         "unrecognized\n", argv[0], c);
2127                         return CMD_HELP;
2128                 }
2129         }
2130
2131         if (qctl.qc_type)
2132                 qctl.qc_type--;
2133         else /* by default, enable quota for both user & group */
2134                 qctl.qc_type = 0x02;
2135
2136         if (argc == optind)
2137                 return CMD_HELP;
2138
2139         mnt = argv[optind];
2140
2141         rc = llapi_quotactl(mnt, &qctl);
2142         if (rc) {
2143                 if (rc == -EOPNOTSUPP) {
2144                         fprintf(stderr, "error: quotaon not supported by the "
2145                                 "quota master.\nPlease note that quotaon/off is"
2146                                 " deprecated as of lustre 2.4.0.\nQuota "
2147                                 "enforcement should now be enabled on the MGS "
2148                                 "via:\nmgs# lctl conf_param ${FSNAME}.quota."
2149                                 "<ost|mdt>=<u|g|ug>\n(ost for block quota, mdt "
2150                                 "for inode quota, u for user and g for group"
2151                                 "\n");
2152                 } else if (rc == -EALREADY) {
2153                         rc = 0;
2154                 } else if (rc == -ENOENT) {
2155                         fprintf(stderr, "error: cannot find quota database, "
2156                                         "make sure you have run quotacheck\n");
2157                 } else {
2158                         if (*obd_type)
2159                                 fprintf(stderr, "%s %s ", obd_type,
2160                                         obd_uuid2str(&qctl.obd_uuid));
2161                         fprintf(stderr, "%s failed: %s\n", argv[0],
2162                                 strerror(-rc));
2163                 }
2164         }
2165
2166         return rc;
2167 }
2168
2169 static int lfs_quotaoff(int argc, char **argv)
2170 {
2171         int c;
2172         char *mnt;
2173         struct if_quotactl qctl;
2174         char *obd_type = (char *)qctl.obd_type;
2175         int rc;
2176
2177         memset(&qctl, 0, sizeof(qctl));
2178         qctl.qc_cmd = LUSTRE_Q_QUOTAOFF;
2179
2180         optind = 0;
2181         while ((c = getopt(argc, argv, "gu")) != -1) {
2182                 switch (c) {
2183                 case 'u':
2184                         qctl.qc_type |= 0x01;
2185                         break;
2186                 case 'g':
2187                         qctl.qc_type |= 0x02;
2188                         break;
2189                 default:
2190                         fprintf(stderr, "error: %s: option '-%c' "
2191                                         "unrecognized\n", argv[0], c);
2192                         return CMD_HELP;
2193                 }
2194         }
2195
2196         if (qctl.qc_type)
2197                 qctl.qc_type--;
2198         else /* by default, disable quota for both user & group */
2199                 qctl.qc_type = 0x02;
2200
2201         if (argc == optind)
2202                 return CMD_HELP;
2203
2204         mnt = argv[optind];
2205
2206         rc = llapi_quotactl(mnt, &qctl);
2207         if (rc) {
2208                 if (rc == -EOPNOTSUPP) {
2209                         fprintf(stderr, "error: quotaoff not supported by the "
2210                                 "quota master.\nPlease note that quotaon/off is"
2211                                 " deprecated as of lustre 2.4.0.\nQuota "
2212                                 "enforcement can be disabled on the MGS via:\n"
2213                                 "mgs# lctl conf_param ${FSNAME}.quota.<ost|mdt>"
2214                                 "=\"\"\n");
2215                 } else if (rc == -EALREADY) {
2216                         rc = 0;
2217                 } else {
2218                         if (*obd_type)
2219                                 fprintf(stderr, "%s %s ", obd_type,
2220                                         obd_uuid2str(&qctl.obd_uuid));
2221                         fprintf(stderr, "quotaoff failed: %s\n",
2222                                 strerror(-rc));
2223                 }
2224         }
2225
2226         return rc;
2227 }
2228
2229 #define ARG2INT(nr, str, msg)                                           \
2230 do {                                                                    \
2231         char *endp;                                                     \
2232         nr = strtol(str, &endp, 0);                                     \
2233         if (*endp) {                                                    \
2234                 fprintf(stderr, "error: bad %s: %s\n", msg, str);       \
2235                 return CMD_HELP;                                        \
2236         }                                                               \
2237 } while (0)
2238
2239 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
2240
2241 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
2242  * returns the value or ULONG_MAX on integer overflow or incorrect format
2243  * Notes:
2244  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
2245  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
2246  *        3. empty integer value is interpreted as 0
2247  */
2248 static unsigned long str2sec(const char* timestr)
2249 {
2250         const char spec[] = "smhdw";
2251         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
2252         unsigned long val = 0;
2253         char *tail;
2254
2255         if (strpbrk(timestr, spec) == NULL) {
2256                 /* no specifiers inside the time string,
2257                    should treat it as an integer value */
2258                 val = strtoul(timestr, &tail, 10);
2259                 return *tail ? ULONG_MAX : val;
2260         }
2261
2262         /* format string is XXwXXdXXhXXmXXs */
2263         while (*timestr) {
2264                 unsigned long v;
2265                 int ind;
2266                 char* ptr;
2267
2268                 v = strtoul(timestr, &tail, 10);
2269                 if (v == ULONG_MAX || *tail == '\0')
2270                         /* value too large (ULONG_MAX or more)
2271                            or missing specifier */
2272                         goto error;
2273
2274                 ptr = strchr(spec, *tail);
2275                 if (ptr == NULL)
2276                         /* unknown specifier */
2277                         goto error;
2278
2279                 ind = ptr - spec;
2280
2281                 /* check if product will overflow the type */
2282                 if (!(v < ULONG_MAX / mult[ind]))
2283                         goto error;
2284
2285                 ADD_OVERFLOW(val, mult[ind] * v);
2286                 if (val == ULONG_MAX)
2287                         goto error;
2288
2289                 timestr = tail + 1;
2290         }
2291
2292         return val;
2293
2294 error:
2295         return ULONG_MAX;
2296 }
2297
2298 #define ARG2ULL(nr, str, def_units)                                     \
2299 do {                                                                    \
2300         unsigned long long limit, units = def_units;                    \
2301         int rc;                                                         \
2302                                                                         \
2303         rc = llapi_parse_size(str, &limit, &units, 1);                  \
2304         if (rc < 0) {                                                   \
2305                 fprintf(stderr, "error: bad limit value %s\n", str);    \
2306                 return CMD_HELP;                                        \
2307         }                                                               \
2308         nr = limit;                                                     \
2309 } while (0)
2310
2311 static inline int has_times_option(int argc, char **argv)
2312 {
2313         int i;
2314
2315         for (i = 1; i < argc; i++)
2316                 if (!strcmp(argv[i], "-t"))
2317                         return 1;
2318
2319         return 0;
2320 }
2321
2322 int lfs_setquota_times(int argc, char **argv)
2323 {
2324         int c, rc;
2325         struct if_quotactl qctl;
2326         char *mnt, *obd_type = (char *)qctl.obd_type;
2327         struct obd_dqblk *dqb = &qctl.qc_dqblk;
2328         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
2329         struct option long_opts[] = {
2330                 {"block-grace",     required_argument, 0, 'b'},
2331                 {"group",           no_argument,       0, 'g'},
2332                 {"inode-grace",     required_argument, 0, 'i'},
2333                 {"times",           no_argument,       0, 't'},
2334                 {"user",            no_argument,       0, 'u'},
2335                 {0, 0, 0, 0}
2336         };
2337
2338         memset(&qctl, 0, sizeof(qctl));
2339         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
2340         qctl.qc_type = UGQUOTA;
2341
2342         optind = 0;
2343         while ((c = getopt_long(argc, argv, "b:gi:tu", long_opts, NULL)) != -1) {
2344                 switch (c) {
2345                 case 'u':
2346                 case 'g':
2347                         if (qctl.qc_type != UGQUOTA) {
2348                                 fprintf(stderr, "error: -u and -g can't be used "
2349                                                 "more than once\n");
2350                                 return CMD_HELP;
2351                         }
2352                         qctl.qc_type = (c == 'u') ? USRQUOTA : GRPQUOTA;
2353                         break;
2354                 case 'b':
2355                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
2356                                 fprintf(stderr, "error: bad block-grace: %s\n",
2357                                         optarg);
2358                                 return CMD_HELP;
2359                         }
2360                         dqb->dqb_valid |= QIF_BTIME;
2361                         break;
2362                 case 'i':
2363                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
2364                                 fprintf(stderr, "error: bad inode-grace: %s\n",
2365                                         optarg);
2366                                 return CMD_HELP;
2367                         }
2368                         dqb->dqb_valid |= QIF_ITIME;
2369                         break;
2370                 case 't': /* Yes, of course! */
2371                         break;
2372                 default: /* getopt prints error message for us when opterr != 0 */
2373                         return CMD_HELP;
2374                 }
2375         }
2376
2377         if (qctl.qc_type == UGQUOTA) {
2378                 fprintf(stderr, "error: neither -u nor -g specified\n");
2379                 return CMD_HELP;
2380         }
2381
2382         if (optind != argc - 1) {
2383                 fprintf(stderr, "error: unexpected parameters encountered\n");
2384                 return CMD_HELP;
2385         }
2386
2387         mnt = argv[optind];
2388         rc = llapi_quotactl(mnt, &qctl);
2389         if (rc) {
2390                 if (*obd_type)
2391                         fprintf(stderr, "%s %s ", obd_type,
2392                                 obd_uuid2str(&qctl.obd_uuid));
2393                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
2394                 return rc;
2395         }
2396
2397         return 0;
2398 }
2399
2400 #define BSLIMIT (1 << 0)
2401 #define BHLIMIT (1 << 1)
2402 #define ISLIMIT (1 << 2)
2403 #define IHLIMIT (1 << 3)
2404
2405 int lfs_setquota(int argc, char **argv)
2406 {
2407         int c, rc;
2408         struct if_quotactl qctl;
2409         char *mnt, *obd_type = (char *)qctl.obd_type;
2410         struct obd_dqblk *dqb = &qctl.qc_dqblk;
2411         struct option long_opts[] = {
2412                 {"block-softlimit", required_argument, 0, 'b'},
2413                 {"block-hardlimit", required_argument, 0, 'B'},
2414                 {"group",           required_argument, 0, 'g'},
2415                 {"inode-softlimit", required_argument, 0, 'i'},
2416                 {"inode-hardlimit", required_argument, 0, 'I'},
2417                 {"user",            required_argument, 0, 'u'},
2418                 {0, 0, 0, 0}
2419         };
2420         unsigned limit_mask = 0;
2421         char *endptr;
2422
2423         if (has_times_option(argc, argv))
2424                 return lfs_setquota_times(argc, argv);
2425
2426         memset(&qctl, 0, sizeof(qctl));
2427         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
2428         qctl.qc_type = UGQUOTA; /* UGQUOTA makes no sense for setquota,
2429                                  * so it can be used as a marker that qc_type
2430                                  * isn't reinitialized from command line */
2431
2432         optind = 0;
2433         while ((c = getopt_long(argc, argv, "b:B:g:i:I:u:", long_opts, NULL)) != -1) {
2434                 switch (c) {
2435                 case 'u':
2436                 case 'g':
2437                         if (qctl.qc_type != UGQUOTA) {
2438                                 fprintf(stderr, "error: -u and -g can't be used"
2439                                                 " more than once\n");
2440                                 return CMD_HELP;
2441                         }
2442                         qctl.qc_type = (c == 'u') ? USRQUOTA : GRPQUOTA;
2443                         rc = name2id(&qctl.qc_id, optarg,
2444                                      (qctl.qc_type == USRQUOTA) ? USER : GROUP);
2445                         if (rc) {
2446                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
2447                                 if (*endptr != '\0') {
2448                                         fprintf(stderr, "error: can't find id "
2449                                                 "for name %s\n", optarg);
2450                                         return CMD_HELP;
2451                                 }
2452                         }
2453                         break;
2454                 case 'b':
2455                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
2456                         dqb->dqb_bsoftlimit >>= 10;
2457                         limit_mask |= BSLIMIT;
2458                         if (dqb->dqb_bsoftlimit &&
2459                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
2460                                 fprintf(stderr, "warning: block softlimit is "
2461                                         "smaller than the miminal qunit size, "
2462                                         "please see the help of setquota or "
2463                                         "Lustre manual for details.\n");
2464                         break;
2465                 case 'B':
2466                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
2467                         dqb->dqb_bhardlimit >>= 10;
2468                         limit_mask |= BHLIMIT;
2469                         if (dqb->dqb_bhardlimit &&
2470                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
2471                                 fprintf(stderr, "warning: block hardlimit is "
2472                                         "smaller than the miminal qunit size, "
2473                                         "please see the help of setquota or "
2474                                         "Lustre manual for details.\n");
2475                         break;
2476                 case 'i':
2477                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
2478                         limit_mask |= ISLIMIT;
2479                         if (dqb->dqb_isoftlimit &&
2480                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
2481                                 fprintf(stderr, "warning: inode softlimit is "
2482                                         "smaller than the miminal qunit size, "
2483                                         "please see the help of setquota or "
2484                                         "Lustre manual for details.\n");
2485                         break;
2486                 case 'I':
2487                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
2488                         limit_mask |= IHLIMIT;
2489                         if (dqb->dqb_ihardlimit &&
2490                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
2491                                 fprintf(stderr, "warning: inode hardlimit is "
2492                                         "smaller than the miminal qunit size, "
2493                                         "please see the help of setquota or "
2494                                         "Lustre manual for details.\n");
2495                         break;
2496                 default: /* getopt prints error message for us when opterr != 0 */
2497                         return CMD_HELP;
2498                 }
2499         }
2500
2501         if (qctl.qc_type == UGQUOTA) {
2502                 fprintf(stderr, "error: neither -u nor -g was specified\n");
2503                 return CMD_HELP;
2504         }
2505
2506         if (limit_mask == 0) {
2507                 fprintf(stderr, "error: at least one limit must be specified\n");
2508                 return CMD_HELP;
2509         }
2510
2511         if (optind != argc - 1) {
2512                 fprintf(stderr, "error: unexpected parameters encountered\n");
2513                 return CMD_HELP;
2514         }
2515
2516         mnt = argv[optind];
2517
2518         if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
2519             (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
2520                 /* sigh, we can't just set blimits/ilimits */
2521                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
2522                                                .qc_type = qctl.qc_type,
2523                                                .qc_id   = qctl.qc_id};
2524
2525                 rc = llapi_quotactl(mnt, &tmp_qctl);
2526                 if (rc < 0) {
2527                         fprintf(stderr, "error: setquota failed while retrieving"
2528                                         " current quota settings (%s)\n",
2529                                         strerror(-rc));
2530                         return rc;
2531                 }
2532
2533                 if (!(limit_mask & BHLIMIT))
2534                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
2535                 if (!(limit_mask & BSLIMIT))
2536                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
2537                 if (!(limit_mask & IHLIMIT))
2538                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
2539                 if (!(limit_mask & ISLIMIT))
2540                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
2541
2542                 /* Keep grace times if we have got no softlimit arguments */
2543                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
2544                         dqb->dqb_valid |= QIF_BTIME;
2545                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
2546                 }
2547
2548                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
2549                         dqb->dqb_valid |= QIF_ITIME;
2550                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
2551                 }
2552         }
2553
2554         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
2555         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
2556
2557         rc = llapi_quotactl(mnt, &qctl);
2558         if (rc) {
2559                 if (*obd_type)
2560                         fprintf(stderr, "%s %s ", obd_type,
2561                                 obd_uuid2str(&qctl.obd_uuid));
2562                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
2563                 return rc;
2564         }
2565
2566         return 0;
2567 }
2568
2569 static inline char *type2name(int check_type)
2570 {
2571         if (check_type == USRQUOTA)
2572                 return "user";
2573         else if (check_type == GRPQUOTA)
2574                 return "group";
2575         else
2576                 return "unknown";
2577 }
2578
2579 /* Converts seconds value into format string
2580  * result is returned in buf
2581  * Notes:
2582  *        1. result is in descenting order: 1w2d3h4m5s
2583  *        2. zero fields are not filled (except for p. 3): 5d1s
2584  *        3. zero seconds value is presented as "0s"
2585  */
2586 static char * __sec2str(time_t seconds, char *buf)
2587 {
2588         const char spec[] = "smhdw";
2589         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
2590         unsigned long c;
2591         char *tail = buf;
2592         int i;
2593
2594         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
2595                 c = seconds / mult[i];
2596
2597                 if (c > 0 || (i == 0 && buf == tail))
2598                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
2599
2600                 seconds %= mult[i];
2601         }
2602
2603         return tail;
2604 }
2605
2606 static void sec2str(time_t seconds, char *buf, int rc)
2607 {
2608         char *tail = buf;
2609
2610         if (rc)
2611                 *tail++ = '[';
2612
2613         tail = __sec2str(seconds, tail);
2614
2615         if (rc && tail - buf < 39) {
2616                 *tail++ = ']';
2617                 *tail++ = 0;
2618         }
2619 }
2620
2621 static void diff2str(time_t seconds, char *buf, time_t now)
2622 {
2623
2624         buf[0] = 0;
2625         if (!seconds)
2626                 return;
2627         if (seconds <= now) {
2628                 strcpy(buf, "none");
2629                 return;
2630         }
2631         __sec2str(seconds - now, buf);
2632 }
2633
2634 static void print_quota_title(char *name, struct if_quotactl *qctl,
2635                               bool human_readable)
2636 {
2637         printf("Disk quotas for %s %s (%cid %u):\n",
2638                type2name(qctl->qc_type), name,
2639                *type2name(qctl->qc_type), qctl->qc_id);
2640         printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
2641                "Filesystem", human_readable ? "used" : "kbytes",
2642                "quota", "limit", "grace",
2643                "files", "quota", "limit", "grace");
2644 }
2645
2646 static void kbytes2str(__u64 num, char *buf, bool h)
2647 {
2648         if (!h) {
2649                 sprintf(buf, LPU64, num);
2650         } else {
2651                 if (num >> 30)
2652                         sprintf(buf, "%5.4gT", (double)num / (1 << 30));
2653                 else if (num >> 20)
2654                         sprintf(buf, "%5.4gG", (double)num / (1 << 20));
2655                 else if (num >> 10)
2656                         sprintf(buf, "%5.4gM", (double)num / (1 << 10));
2657                 else
2658                         sprintf(buf, LPU64"%s", num, "k");
2659         }
2660 }
2661
2662 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
2663                         int rc, bool h)
2664 {
2665         time_t now;
2666
2667         time(&now);
2668
2669         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA) {
2670                 int bover = 0, iover = 0;
2671                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
2672                 char numbuf[3][32];
2673                 char timebuf[40];
2674                 char strbuf[32];
2675
2676                 if (dqb->dqb_bhardlimit &&
2677                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
2678                         bover = 1;
2679                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
2680                         if (dqb->dqb_btime > now) {
2681                                 bover = 2;
2682                         } else {
2683                                 bover = 3;
2684                         }
2685                 }
2686
2687                 if (dqb->dqb_ihardlimit &&
2688                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
2689                         iover = 1;
2690                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
2691                         if (dqb->dqb_itime > now) {
2692                                 iover = 2;
2693                         } else {
2694                                 iover = 3;
2695                         }
2696                 }
2697
2698
2699                 if (strlen(mnt) > 15)
2700                         printf("%s\n%15s", mnt, "");
2701                 else
2702                         printf("%15s", mnt);
2703
2704                 if (bover)
2705                         diff2str(dqb->dqb_btime, timebuf, now);
2706
2707                 kbytes2str(lustre_stoqb(dqb->dqb_curspace), strbuf, h);
2708                 if (rc == -EREMOTEIO)
2709                         sprintf(numbuf[0], "%s*", strbuf);
2710                 else
2711                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
2712                                 "%s" : "[%s]", strbuf);
2713
2714                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, h);
2715                 if (type == QC_GENERAL)
2716                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
2717                                 "%s" : "[%s]", strbuf);
2718                 else
2719                         sprintf(numbuf[1], "%s", "-");
2720
2721                 kbytes2str(dqb->dqb_bhardlimit, strbuf, h);
2722                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
2723                         "%s" : "[%s]", strbuf);
2724
2725                 printf(" %7s%c %6s %7s %7s",
2726                        numbuf[0], bover ? '*' : ' ', numbuf[1],
2727                        numbuf[2], bover > 1 ? timebuf : "-");
2728
2729                 if (iover)
2730                         diff2str(dqb->dqb_itime, timebuf, now);
2731
2732                 sprintf(numbuf[0], (dqb->dqb_valid & QIF_INODES) ?
2733                         LPU64 : "["LPU64"]", dqb->dqb_curinodes);
2734
2735                 if (type == QC_GENERAL)
2736                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
2737                                 LPU64 : "["LPU64"]", dqb->dqb_isoftlimit);
2738                 else
2739                         sprintf(numbuf[1], "%s", "-");
2740
2741                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
2742                         LPU64 : "["LPU64"]", dqb->dqb_ihardlimit);
2743
2744                 if (type != QC_OSTIDX)
2745                         printf(" %7s%c %6s %7s %7s",
2746                                numbuf[0], iover ? '*' : ' ', numbuf[1],
2747                                numbuf[2], iover > 1 ? timebuf : "-");
2748                 else
2749                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
2750                 printf("\n");
2751
2752         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
2753                    qctl->qc_cmd == Q_GETOINFO) {
2754                 char bgtimebuf[40];
2755                 char igtimebuf[40];
2756
2757                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
2758                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
2759                 printf("Block grace time: %s; Inode grace time: %s\n",
2760                        bgtimebuf, igtimebuf);
2761         }
2762 }
2763
2764 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
2765                            bool h, __u64 *total)
2766 {
2767         int rc = 0, rc1 = 0, count = 0;
2768         __u32 valid = qctl->qc_valid;
2769
2770         rc = llapi_get_obd_count(mnt, &count, is_mdt);
2771         if (rc) {
2772                 fprintf(stderr, "can not get %s count: %s\n",
2773                         is_mdt ? "mdt": "ost", strerror(-rc));
2774                 return rc;
2775         }
2776
2777         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
2778                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
2779                 rc = llapi_quotactl(mnt, qctl);
2780                 if (rc) {
2781                         /* It is remote client case. */
2782                         if (-rc == EOPNOTSUPP) {
2783                                 rc = 0;
2784                                 goto out;
2785                         }
2786
2787                         if (!rc1)
2788                                 rc1 = rc;
2789                         fprintf(stderr, "quotactl %s%d failed.\n",
2790                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
2791                         continue;
2792                 }
2793
2794                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
2795                             qctl->qc_valid, 0, h);
2796                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
2797                                    qctl->qc_dqblk.dqb_bhardlimit;
2798         }
2799 out:
2800         qctl->qc_valid = valid;
2801         return rc ? : rc1;
2802 }
2803
2804 static int lfs_quota(int argc, char **argv)
2805 {
2806         int c;
2807         char *mnt, *name = NULL;
2808         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
2809                                     .qc_type = UGQUOTA };
2810         char *obd_type = (char *)qctl.obd_type;
2811         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
2812         int rc, rc1 = 0, rc2 = 0, rc3 = 0,
2813             verbose = 0, pass = 0, quiet = 0, inacc;
2814         char *endptr;
2815         __u32 valid = QC_GENERAL, idx = 0;
2816         __u64 total_ialloc = 0, total_balloc = 0;
2817         bool human_readable = false;
2818
2819         optind = 0;
2820         while ((c = getopt(argc, argv, "gi:I:o:qtuvh")) != -1) {
2821                 switch (c) {
2822                 case 'u':
2823                         if (qctl.qc_type != UGQUOTA) {
2824                                 fprintf(stderr, "error: use either -u or -g\n");
2825                                 return CMD_HELP;
2826                         }
2827                         qctl.qc_type = USRQUOTA;
2828                         break;
2829                 case 'g':
2830                         if (qctl.qc_type != UGQUOTA) {
2831                                 fprintf(stderr, "error: use either -u or -g\n");
2832                                 return CMD_HELP;
2833                         }
2834                         qctl.qc_type = GRPQUOTA;
2835                         break;
2836                 case 't':
2837                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
2838                         break;
2839                 case 'o':
2840                         valid = qctl.qc_valid = QC_UUID;
2841                         strncpy(obd_uuid, optarg, sizeof(qctl.obd_uuid));
2842                         break;
2843                 case 'i':
2844                         valid = qctl.qc_valid = QC_MDTIDX;
2845                         idx = qctl.qc_idx = atoi(optarg);
2846                         break;
2847                 case 'I':
2848                         valid = qctl.qc_valid = QC_OSTIDX;
2849                         idx = qctl.qc_idx = atoi(optarg);
2850                         break;
2851                 case 'v':
2852                         verbose = 1;
2853                         break;
2854                 case 'q':
2855                         quiet = 1;
2856                         break;
2857                 case 'h':
2858                         human_readable = true;
2859                         break;
2860                 default:
2861                         fprintf(stderr, "error: %s: option '-%c' "
2862                                         "unrecognized\n", argv[0], c);
2863                         return CMD_HELP;
2864                 }
2865         }
2866
2867         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
2868         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == UGQUOTA &&
2869             optind == argc - 1) {
2870 ug_output:
2871                 memset(&qctl, 0, sizeof(qctl)); /* spoiled by print_*_quota */
2872                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
2873                 qctl.qc_valid = valid;
2874                 qctl.qc_idx = idx;
2875                 if (pass++ == 0) {
2876                         qctl.qc_type = USRQUOTA;
2877                         qctl.qc_id = geteuid();
2878                 } else {
2879                         qctl.qc_type = GRPQUOTA;
2880                         qctl.qc_id = getegid();
2881                 }
2882                 rc = id2name(&name, qctl.qc_id,
2883                              (qctl.qc_type == USRQUOTA) ? USER : GROUP);
2884                 if (rc)
2885                         name = "<unknown>";
2886         /* lfs quota -u username /path/to/lustre/mount */
2887         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
2888                 /* options should be followed by u/g-name and mntpoint */
2889                 if (optind + 2 != argc || qctl.qc_type == UGQUOTA) {
2890                         fprintf(stderr, "error: missing quota argument(s)\n");
2891                         return CMD_HELP;
2892                 }
2893
2894                 name = argv[optind++];
2895                 rc = name2id(&qctl.qc_id, name,
2896                              (qctl.qc_type == USRQUOTA) ? USER : GROUP);
2897                 if (rc) {
2898                         qctl.qc_id = strtoul(name, &endptr, 10);
2899                         if (*endptr != '\0') {
2900                                 fprintf(stderr, "error: can't find id for name "
2901                                         "%s\n", name);
2902                                 return CMD_HELP;
2903                         }
2904                 }
2905         } else if (optind + 1 != argc || qctl.qc_type == UGQUOTA) {
2906                 fprintf(stderr, "error: missing quota info argument(s)\n");
2907                 return CMD_HELP;
2908         }
2909
2910         mnt = argv[optind];
2911
2912         rc1 = llapi_quotactl(mnt, &qctl);
2913         if (rc1 < 0) {
2914                 switch (rc1) {
2915                 case -ESRCH:
2916                         fprintf(stderr, "%s quotas are not enabled.\n",
2917                                 qctl.qc_type == USRQUOTA ? "user" : "group");
2918                         goto out;
2919                 case -EPERM:
2920                         fprintf(stderr, "Permission denied.\n");
2921                 case -ENOENT:
2922                         /* We already got a "No such file..." message. */
2923                         goto out;
2924                 default:
2925                         fprintf(stderr, "Unexpected quotactl error: %s\n",
2926                                 strerror(-rc1));
2927                 }
2928         }
2929
2930         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && !quiet)
2931                 print_quota_title(name, &qctl, human_readable);
2932
2933         if (rc1 && *obd_type)
2934                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
2935
2936         if (qctl.qc_valid != QC_GENERAL)
2937                 mnt = "";
2938
2939         inacc = (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) &&
2940                 ((qctl.qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
2941                  (QIF_LIMITS|QIF_USAGE));
2942
2943         print_quota(mnt, &qctl, QC_GENERAL, rc1, human_readable);
2944
2945         if (qctl.qc_valid == QC_GENERAL && qctl.qc_cmd != LUSTRE_Q_GETINFO &&
2946             verbose) {
2947                 char strbuf[32];
2948
2949                 rc2 = print_obd_quota(mnt, &qctl, 1, human_readable,
2950                                       &total_ialloc);
2951                 rc3 = print_obd_quota(mnt, &qctl, 0, human_readable,
2952                                       &total_balloc);
2953                 kbytes2str(total_balloc, strbuf, human_readable);
2954                 printf("Total allocated inode limit: "LPU64", total "
2955                        "allocated block limit: %s\n", total_ialloc, strbuf);
2956         }
2957
2958         if (rc1 || rc2 || rc3 || inacc)
2959                 printf("Some errors happened when getting quota info. "
2960                        "Some devices may be not working or deactivated. "
2961                        "The data in \"[]\" is inaccurate.\n");
2962
2963 out:
2964         if (pass == 1)
2965                 goto ug_output;
2966
2967         return rc1;
2968 }
2969 #endif /* HAVE_SYS_QUOTA_H! */
2970
2971 static int flushctx_ioctl(char *mp)
2972 {
2973         int fd, rc;
2974
2975         fd = open(mp, O_RDONLY);
2976         if (fd == -1) {
2977                 fprintf(stderr, "flushctx: error open %s: %s\n",
2978                         mp, strerror(errno));
2979                 return -1;
2980         }
2981
2982         rc = ioctl(fd, LL_IOC_FLUSHCTX);
2983         if (rc == -1)
2984                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
2985                         mp, strerror(errno));
2986
2987         close(fd);
2988         return rc;
2989 }
2990
2991 static int lfs_flushctx(int argc, char **argv)
2992 {
2993         int     kdestroy = 0, c;
2994         FILE   *proc = NULL;
2995         char    procline[PATH_MAX], *line;
2996         int     rc = 0;
2997
2998         optind = 0;
2999         while ((c = getopt(argc, argv, "k")) != -1) {
3000                 switch (c) {
3001                 case 'k':
3002                         kdestroy = 1;