1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * Copyright (c) 2011 Whamcloud, Inc.
36 * This file is part of Lustre, http://www.lustre.org/
37 * Lustre is a trademark of Sun Microsystems, Inc.
39 * lustre/utils/liblustreapi.c
41 * Author: Peter J. Braam <braam@clusterfs.com>
42 * Author: Phil Schwan <phil@clusterfs.com>
43 * Author: Robert Read <rread@clusterfs.com>
55 #include <sys/ioctl.h>
62 #include <sys/types.h>
63 #include <sys/syscall.h>
64 #include <sys/xattr.h>
67 #ifdef HAVE_LINUX_UNISTD_H
68 #include <linux/unistd.h>
74 #include <liblustre.h>
75 #include <lnet/lnetctl.h>
77 #include <lustre_lib.h>
79 #include <lustre/liblustreapi.h>
81 static unsigned llapi_dir_filetype_table[] = {
90 #if defined(DT_DOOR) && defined(S_IFDOOR)
95 #if defined(DT_DOOR) && defined(S_IFDOOR)
96 static const int DT_MAX = DT_DOOR;
98 static const int DT_MAX = DT_SOCK;
101 static unsigned llapi_filetype_dir_table[] = {
110 #if defined(DT_DOOR) && defined(S_IFDOOR)
115 #if defined(DT_DOOR) && defined(S_IFDOOR)
116 static const int S_IFMAX = DT_DOOR;
118 static const int S_IFMAX = DT_SOCK;
121 /* liblustreapi message level */
122 static int llapi_msg_level = LLAPI_MSG_MAX;
124 void llapi_msg_set_level(int level)
126 /* ensure level is in the good range */
127 if (level < LLAPI_MSG_OFF)
128 llapi_msg_level = LLAPI_MSG_OFF;
129 else if (level > LLAPI_MSG_MAX)
130 llapi_msg_level = LLAPI_MSG_MAX;
132 llapi_msg_level = level;
135 /* llapi_error will preserve errno */
136 void llapi_error(int level, int _rc, char *fmt, ...)
139 int tmp_errno = errno;
140 /* to protect using errno as _rc argument */
143 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
147 vfprintf(stderr, fmt, args);
150 if (level & LLAPI_MSG_NO_ERRNO)
151 fprintf(stderr, "\n");
153 fprintf(stderr, ": %s (%d)\n", strerror(rc), rc);
157 /* llapi_printf will preserve errno */
158 void llapi_printf(int level, char *fmt, ...)
161 int tmp_errno = errno;
163 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
167 vfprintf(stdout, fmt, args);
173 * size_units is to be initialized (or zeroed) by caller.
175 int parse_size(char *optarg, unsigned long long *size,
176 unsigned long long *size_units, int bytes_spec)
180 if (strncmp(optarg, "-", 1) == 0)
183 if (*size_units == 0)
186 *size = strtoull(optarg, &end, 0);
189 if ((*end == 'b') && *(end+1) == '\0' &&
190 (*size & (~0ULL << (64 - 9))) == 0 &&
192 *size_units = 1 << 9;
193 } else if ((*end == 'b') && *(end+1) == '\0' &&
196 } else if ((*end == 'k' || *end == 'K') &&
197 *(end+1) == '\0' && (*size &
198 (~0ULL << (64 - 10))) == 0) {
199 *size_units = 1 << 10;
200 } else if ((*end == 'm' || *end == 'M') &&
201 *(end+1) == '\0' && (*size &
202 (~0ULL << (64 - 20))) == 0) {
203 *size_units = 1 << 20;
204 } else if ((*end == 'g' || *end == 'G') &&
205 *(end+1) == '\0' && (*size &
206 (~0ULL << (64 - 30))) == 0) {
207 *size_units = 1 << 30;
208 } else if ((*end == 't' || *end == 'T') &&
209 *(end+1) == '\0' && (*size &
210 (~0ULL << (64 - 40))) == 0) {
211 *size_units = 1ULL << 40;
212 } else if ((*end == 'p' || *end == 'P') &&
213 *(end+1) == '\0' && (*size &
214 (~0ULL << (64 - 50))) == 0) {
215 *size_units = 1ULL << 50;
216 } else if ((*end == 'e' || *end == 'E') &&
217 *(end+1) == '\0' && (*size &
218 (~0ULL << (64 - 60))) == 0) {
219 *size_units = 1ULL << 60;
224 *size *= *size_units;
228 /* XXX: llapi_xxx() functions return negative values upon failure */
230 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
231 int stripe_count, int stripe_pattern)
235 /* 64 KB is the largest common page size I'm aware of (on ia64), but
236 * check the local page size just in case. */
237 page_size = LOV_MIN_STRIPE_SIZE;
238 if (getpagesize() > page_size) {
239 page_size = getpagesize();
240 llapi_err_noerrno(LLAPI_MSG_WARN,
241 "warning: your page size (%u) is "
242 "larger than expected (%u)", page_size,
243 LOV_MIN_STRIPE_SIZE);
245 if (stripe_size < 0 || (stripe_size & (LOV_MIN_STRIPE_SIZE - 1))) {
247 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe_size %lu, "
248 "must be an even multiple of %d bytes",
249 stripe_size, page_size);
252 if (stripe_offset < -1 || stripe_offset > MAX_OBD_DEVICES) {
254 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
258 if (stripe_count < -1 || stripe_count > LOV_MAX_STRIPE_COUNT) {
260 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
264 if (stripe_size >= (1ULL << 32)){
266 llapi_error(LLAPI_MSG_ERROR, rc,
267 "warning: stripe size larger than 4G "
268 "is not currently supported and would wrap");
274 static int find_target_obdpath(char *fsname, char *path)
277 char pattern[PATH_MAX + 1];
280 snprintf(pattern, PATH_MAX,
281 "/proc/fs/lustre/lov/%s-*/target_obd",
283 rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
284 if (rc == GLOB_NOMATCH)
289 strcpy(path, glob_info.gl_pathv[0]);
290 globfree(&glob_info);
294 static int find_poolpath(char *fsname, char *poolname, char *poolpath)
297 char pattern[PATH_MAX + 1];
300 snprintf(pattern, PATH_MAX,
301 "/proc/fs/lustre/lov/%s-*/pools/%s",
303 rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
304 /* If no pools, make sure the lov is available */
305 if ((rc == GLOB_NOMATCH) &&
306 (find_target_obdpath(fsname, poolpath) == -ENODEV))
311 strcpy(poolpath, glob_info.gl_pathv[0]);
312 globfree(&glob_info);
317 * if pool is NULL, search ostname in target_obd
318 * if pool is not NULL:
319 * if pool not found returns errno < 0
320 * if ostname is NULL, returns 1 if pool is not empty and 0 if pool empty
321 * if ostname is not NULL, returns 1 if OST is in pool and 0 if not
323 int llapi_search_ost(char *fsname, char *poolname, char *ostname)
326 char buffer[PATH_MAX + 1];
330 len = strlen(ostname);
332 if (poolname == NULL)
333 rc = find_target_obdpath(fsname, buffer);
335 rc = find_poolpath(fsname, poolname, buffer);
339 fd = fopen(buffer, "r");
343 while (fgets(buffer, sizeof(buffer), fd) != NULL) {
344 if (poolname == NULL) {
346 /* Search for an ostname in the list of OSTs
347 Line format is IDX: fsname-OSTxxxx_UUID STATUS */
348 ptr = strchr(buffer, ' ');
350 (strncmp(ptr + 1, ostname, len) == 0)) {
355 /* Search for an ostname in a pool,
356 (or an existing non-empty pool if no ostname) */
357 if ((ostname == NULL) ||
358 (strncmp(buffer, ostname, len) == 0)) {
368 int llapi_file_open_pool(const char *name, int flags, int mode,
369 unsigned long long stripe_size, int stripe_offset,
370 int stripe_count, int stripe_pattern, char *pool_name)
372 struct lov_user_md_v3 lum = { 0 };
376 /* Make sure we have a good pool */
377 if (pool_name != NULL) {
378 char fsname[MAX_OBD_NAME + 1], *ptr;
380 rc = llapi_search_fsname(name, fsname);
382 llapi_error(LLAPI_MSG_ERROR, rc,
383 "'%s' is not on a Lustre filesystem",
388 /* in case user gives the full pool name <fsname>.<poolname>,
389 * strip the fsname */
390 ptr = strchr(pool_name, '.');
393 if (strcmp(pool_name, fsname) != 0) {
395 llapi_err_noerrno(LLAPI_MSG_ERROR,
396 "Pool '%s' is not on filesystem '%s'",
403 /* Make sure the pool exists and is non-empty */
404 rc = llapi_search_ost(fsname, pool_name, NULL);
406 llapi_err_noerrno(LLAPI_MSG_ERROR,
407 "pool '%s.%s' %s", fsname, pool_name,
408 rc == 0 ? "has no OSTs" : "does not exist");
413 fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
414 if (fd < 0 && errno == EISDIR) {
415 fd = open(name, O_DIRECTORY | O_RDONLY);
421 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
425 rc = llapi_stripe_limit_check(stripe_size, stripe_offset, stripe_count,
430 /* Initialize IOCTL striping pattern structure */
431 lum.lmm_magic = LOV_USER_MAGIC_V3;
432 lum.lmm_pattern = stripe_pattern;
433 lum.lmm_stripe_size = stripe_size;
434 lum.lmm_stripe_count = stripe_count;
435 lum.lmm_stripe_offset = stripe_offset;
436 if (pool_name != NULL) {
437 strncpy(lum.lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
439 /* If no pool is specified at all, use V1 request */
440 lum.lmm_magic = LOV_USER_MAGIC_V1;
443 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, &lum)) {
444 char *errmsg = "stripe already set";
446 if (errno != EEXIST && errno != EALREADY)
447 errmsg = strerror(errno);
449 llapi_err_noerrno(LLAPI_MSG_ERROR,
450 "error on ioctl "LPX64" for '%s' (%d): %s",
451 (__u64)LL_IOC_LOV_SETSTRIPE, name, fd,errmsg);
462 int llapi_file_open(const char *name, int flags, int mode,
463 unsigned long long stripe_size, int stripe_offset,
464 int stripe_count, int stripe_pattern)
466 return llapi_file_open_pool(name, flags, mode, stripe_size,
467 stripe_offset, stripe_count,
468 stripe_pattern, NULL);
471 int llapi_file_create(const char *name, unsigned long long stripe_size,
472 int stripe_offset, int stripe_count, int stripe_pattern)
476 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
477 stripe_offset, stripe_count, stripe_pattern,
486 int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
487 int stripe_offset, int stripe_count,
488 int stripe_pattern, char *pool_name)
492 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
493 stripe_offset, stripe_count, stripe_pattern,
503 * Find the fsname, the full path, and/or an open fd.
504 * Either the fsname or path must not be NULL
506 #define WANT_PATH 0x1
507 #define WANT_FSNAME 0x2
509 #define WANT_INDEX 0x8
510 #define WANT_ERROR 0x10
511 static int get_root_path(int want, char *fsname, int *outfd, char *path,
515 char buf[PATH_MAX], mntdir[PATH_MAX];
518 int idx = 0, len = 0, mntlen, fd;
521 /* get the mount point */
522 fp = setmntent(MOUNTED, "r");
525 llapi_error(LLAPI_MSG_ERROR, rc,
526 "setmntent(%s) failed", MOUNTED);
530 if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
533 if (!llapi_is_lustre_mnt(&mnt))
536 if ((want & WANT_INDEX) && (idx++ != index))
539 mntlen = strlen(mnt.mnt_dir);
540 ptr = strrchr(mnt.mnt_fsname, '/');
547 /* Check the fsname for a match, if given */
548 if (!(want & WANT_FSNAME) && fsname != NULL &&
549 (strlen(fsname) > 0) && (strcmp(ptr, fsname) != 0))
552 /* If the path isn't set return the first one we find */
553 if (path == NULL || strlen(path) == 0) {
554 strcpy(mntdir, mnt.mnt_dir);
555 if ((want & WANT_FSNAME) && fsname != NULL)
559 /* Otherwise find the longest matching path */
560 } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
561 (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
562 strcpy(mntdir, mnt.mnt_dir);
564 if ((want & WANT_FSNAME) && fsname != NULL)
573 if ((want & WANT_PATH) && path != NULL)
574 strcpy(path, mntdir);
575 if (want & WANT_FD) {
576 fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
579 llapi_error(LLAPI_MSG_ERROR, rc,
580 "error opening '%s'", mntdir);
586 } else if (want & WANT_ERROR)
587 llapi_err_noerrno(LLAPI_MSG_ERROR,
588 "can't find fs root for '%s': %d",
589 (want & WANT_PATH) ? fsname : path, rc);
594 * search lustre mounts
596 * Calling this function will return to the user the mount point, mntdir, and
597 * the file system name, fsname, if the user passed a buffer to this routine.
599 * The user inputs are pathname and index. If the pathname is supplied then
600 * the value of the index will be ignored. The pathname will return data if
601 * the pathname is located on a lustre mount. Index is used to pick which
602 * mount point you want in the case of multiple mounted lustre file systems.
603 * See function lfs_osts in lfs.c for a example of the index use.
605 int llapi_search_mounts(const char *pathname, int index, char *mntdir,
608 int want = WANT_PATH, idx = -1;
610 if (!pathname || pathname[0] == '\0') {
614 strcpy(mntdir, pathname);
618 return get_root_path(want, fsname, NULL, mntdir, idx);
621 /* Given a path, find the corresponding Lustre fsname */
622 int llapi_search_fsname(const char *pathname, char *fsname)
627 path = realpath(pathname, NULL);
629 char buf[PATH_MAX + 1], *ptr;
632 if (pathname[0] != '/') {
633 /* Need an absolute path, but realpath() only works for
634 * pathnames that actually exist. We go through the
635 * extra hurdle of dirname(getcwd() + pathname) in
636 * case the relative pathname contains ".." in it. */
637 if (getcwd(buf, sizeof(buf) - 1) == NULL)
641 strncat(buf, pathname, sizeof(buf) - strlen(buf));
642 path = realpath(buf, NULL);
644 ptr = strrchr(buf, '/');
648 path = realpath(buf, NULL);
651 llapi_error(LLAPI_MSG_ERROR, rc,
652 "pathname '%s' cannot expand",
658 rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1);
663 int llapi_getname(const char *path, char *buf, size_t size)
665 struct obd_uuid uuid_buf;
666 char *uuid = uuid_buf.uuid;
669 memset(&uuid_buf, 0, sizeof(uuid_buf));
670 rc = llapi_file_get_lov_uuid(path, &uuid_buf);
674 /* We want to turn lustre-clilov-ffff88002738bc00 into
675 * lustre-ffff88002738bc00. */
677 nr = snprintf(buf, size, "%.*s-%s",
678 (int) (strlen(uuid) - 24), uuid,
679 uuid + strlen(uuid) - 16);
688 /* return the first file matching this pattern */
689 static int first_match(char *pattern, char *buffer)
693 if (glob(pattern, GLOB_BRACE, NULL, &glob_info))
696 if (glob_info.gl_pathc < 1) {
697 globfree(&glob_info);
701 strcpy(buffer, glob_info.gl_pathv[0]);
703 globfree(&glob_info);
708 * find the pool directory path under /proc
709 * (can be also used to test if a fsname is known)
711 static int poolpath(char *fsname, char *pathname, char *pool_pathname)
714 char pattern[PATH_MAX + 1];
715 char buffer[PATH_MAX];
717 if (fsname == NULL) {
718 rc = llapi_search_fsname(pathname, buffer);
722 strcpy(pathname, fsname);
725 snprintf(pattern, PATH_MAX, "/proc/fs/lustre/lov/%s-*/pools", fsname);
726 rc = first_match(pattern, buffer);
730 /* in fsname test mode, pool_pathname is NULL */
731 if (pool_pathname != NULL)
732 strcpy(pool_pathname, buffer);
738 * Get the list of pool members.
739 * \param poolname string of format \<fsname\>.\<poolname\>
740 * \param members caller-allocated array of char*
741 * \param list_size size of the members array
742 * \param buffer caller-allocated buffer for storing OST names
743 * \param buffer_size size of the buffer
745 * \return number of members retrieved for this pool
746 * \retval -error failure
748 int llapi_get_poolmembers(const char *poolname, char **members,
749 int list_size, char *buffer, int buffer_size)
751 char fsname[PATH_MAX + 1];
753 char pathname[PATH_MAX + 1];
754 char path[PATH_MAX + 1];
761 /* name is FSNAME.POOLNAME */
762 if (strlen(poolname) > PATH_MAX)
764 strcpy(fsname, poolname);
765 pool = strchr(fsname, '.');
772 rc = poolpath(fsname, NULL, pathname);
774 llapi_error(LLAPI_MSG_ERROR, rc,
775 "Lustre filesystem '%s' not found",
780 llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
781 sprintf(path, "%s/%s", pathname, pool);
782 fd = fopen(path, "r");
785 llapi_error(LLAPI_MSG_ERROR, rc, "Cannot open %s", path);
790 while (fgets(buf, sizeof(buf), fd) != NULL) {
791 if (nb_entries >= list_size) {
796 tmp = strchr(buf, '\n');
799 if (used + strlen(buf) + 1 > buffer_size) {
804 strcpy(buffer + used, buf);
805 members[nb_entries] = buffer + used;
806 used += strlen(buf) + 1;
816 * Get the list of pools in a filesystem.
817 * \param name filesystem name or path
818 * \param poollist caller-allocated array of char*
819 * \param list_size size of the poollist array
820 * \param buffer caller-allocated buffer for storing pool names
821 * \param buffer_size size of the buffer
823 * \return number of pools retrieved for this filesystem
824 * \retval -error failure
826 int llapi_get_poollist(const char *name, char **poollist, int list_size,
827 char *buffer, int buffer_size)
829 char fsname[PATH_MAX + 1], rname[PATH_MAX + 1], pathname[PATH_MAX + 1];
833 struct dirent *cookie = NULL;
835 unsigned int nb_entries = 0;
836 unsigned int used = 0;
839 /* initilize output array */
840 for (i = 0; i < list_size; i++)
843 /* is name a pathname ? */
844 ptr = strchr(name, '/');
846 /* only absolute pathname is supported */
850 if (!realpath(name, rname)) {
852 llapi_error(LLAPI_MSG_ERROR, rc, "invalid path '%s'",
857 rc = poolpath(NULL, rname, pathname);
859 llapi_error(LLAPI_MSG_ERROR, rc, "'%s' is not"
860 " a Lustre filesystem", name);
863 strcpy(fsname, rname);
866 strcpy(fsname, name);
867 rc = poolpath(fsname, NULL, pathname);
870 llapi_error(LLAPI_MSG_ERROR, rc,
871 "Lustre filesystem '%s' not found", name);
875 llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
876 dir = opendir(pathname);
879 llapi_error(LLAPI_MSG_ERROR, rc,
880 "Could not open pool list for '%s'",
886 rc = readdir_r(dir, &pool, &cookie);
890 llapi_error(LLAPI_MSG_ERROR, rc,
891 "Error reading pool list for '%s'", name);
893 } else if ((rc == 0) && (cookie == NULL)) {
894 /* end of directory */
898 /* ignore . and .. */
899 if (!strcmp(pool.d_name, ".") || !strcmp(pool.d_name, ".."))
902 /* check output bounds */
903 if (nb_entries >= list_size)
906 /* +2 for '.' and final '\0' */
907 if (used + strlen(pool.d_name) + strlen(fsname) + 2
911 sprintf(buffer + used, "%s.%s", fsname, pool.d_name);
912 poollist[nb_entries] = buffer + used;
913 used += strlen(pool.d_name) + strlen(fsname) + 2;
921 /* wrapper for lfs.c and obd.c */
922 int llapi_poollist(const char *name)
924 /* list of pool names (assume that pool count is smaller
926 char *list[FIND_MAX_OSTS];
928 /* fsname-OST0000_UUID < 32 char, 1 per OST */
929 int bufsize = FIND_MAX_OSTS * 32;
932 buffer = malloc(bufsize);
936 if ((name[0] == '/') || (strchr(name, '.') == NULL))
937 /* name is a path or fsname */
938 nb = llapi_get_poollist(name, list, FIND_MAX_OSTS, buffer,
941 /* name is a pool name (<fsname>.<poolname>) */
942 nb = llapi_get_poolmembers(name, list, FIND_MAX_OSTS, buffer,
945 for (i = 0; i < nb; i++)
946 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
949 return (nb < 0 ? nb : 0);
953 typedef int (semantic_func_t)(char *path, DIR *parent, DIR *d,
954 void *data, cfs_dirent_t *de);
956 #define MAX_LOV_UUID_COUNT max(LOV_MAX_STRIPE_COUNT, 1000)
957 #define OBD_NOT_FOUND (-1)
959 static int common_param_init(struct find_param *param)
961 param->lumlen = lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC_V3);
962 param->lmd = malloc(sizeof(lstat_t) + param->lumlen);
963 if (param->lmd == NULL) {
964 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
965 "error: allocation of %d bytes for ioctl",
966 sizeof(lstat_t) + param->lumlen);
970 param->got_uuids = 0;
971 param->obdindexes = NULL;
972 param->obdindex = OBD_NOT_FOUND;
976 static void find_param_fini(struct find_param *param)
978 if (param->obdindexes)
979 free(param->obdindexes);
985 static int cb_common_fini(char *path, DIR *parent, DIR *d, void *data,
988 struct find_param *param = (struct find_param *)data;
993 /* set errno upon failure */
994 static DIR *opendir_parent(char *path)
1000 fname = strrchr(path, '/');
1002 return opendir(".");
1006 parent = opendir(path);
1011 int llapi_mds_getfileinfo(char *path, DIR *parent,
1012 struct lov_user_mds_data *lmd)
1014 lstat_t *st = &lmd->lmd_st;
1015 char *fname = strrchr(path, '/');
1021 fname = (fname == NULL ? path : fname + 1);
1022 /* retrieve needed file info */
1023 strncpy((char *)lmd, fname,
1024 lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC));
1025 ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
1028 if (errno == ENOTTY) {
1029 /* ioctl is not supported, it is not a lustre fs.
1030 * Do the regular lstat(2) instead. */
1031 ret = lstat_f(path, st);
1034 llapi_error(LLAPI_MSG_ERROR, ret,
1035 "error: %s: lstat failed for %s",
1039 } else if (errno == ENOENT) {
1041 llapi_error(LLAPI_MSG_WARN, ret,
1042 "warning: %s: %s does not exist",
1047 llapi_error(LLAPI_MSG_ERROR, ret,
1048 "error: %s: IOC_MDC_GETFILEINFO failed for %s",
1057 static int llapi_semantic_traverse(char *path, int size, DIR *parent,
1058 semantic_func_t sem_init,
1059 semantic_func_t sem_fini, void *data,
1070 if (!d && errno != ENOTDIR) {
1072 llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
1075 } else if (!d && !parent) {
1076 /* ENOTDIR. Open the parent dir. */
1077 p = opendir_parent(path);
1079 GOTO(out, ret = -errno);
1082 if (sem_init && (ret = sem_init(path, parent ?: p, d, data, de)))
1088 while ((dent = readdir64(d)) != NULL) {
1089 ((struct find_param *)data)->have_fileinfo = 0;
1091 if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
1094 /* Don't traverse .lustre directory */
1095 if (!(strcmp(dent->d_name, dot_lustre_name)))
1099 if ((len + dent->d_reclen + 2) > size) {
1100 llapi_err_noerrno(LLAPI_MSG_ERROR,
1101 "error: %s: string buffer is too small",
1106 strcat(path, dent->d_name);
1108 if (dent->d_type == DT_UNKNOWN) {
1109 lstat_t *st = &((struct find_param *)data)->lmd->lmd_st;
1111 ret = llapi_mds_getfileinfo(path, d,
1112 ((struct find_param *)data)->lmd);
1114 ((struct find_param *)data)->have_fileinfo = 1;
1116 llapi_filetype_dir_table[st->st_mode &
1123 switch (dent->d_type) {
1125 llapi_err_noerrno(LLAPI_MSG_ERROR,
1126 "error: %s: '%s' is UNKNOWN type %d",
1127 __func__, dent->d_name, dent->d_type);
1130 ret = llapi_semantic_traverse(path, size, d, sem_init,
1131 sem_fini, data, dent);
1138 ret = sem_init(path, d, NULL, data, dent);
1142 if (sem_fini && ret == 0)
1143 sem_fini(path, d, NULL, data, dent);
1151 sem_fini(path, parent, d, data, de);
1160 static int param_callback(char *path, semantic_func_t sem_init,
1161 semantic_func_t sem_fini, struct find_param *param)
1163 int ret, len = strlen(path);
1166 if (len > PATH_MAX) {
1168 llapi_error(LLAPI_MSG_ERROR, ret,
1169 "Path name '%s' is too long", path);
1173 buf = (char *)malloc(PATH_MAX + 1);
1177 ret = common_param_init(param);
1182 strncpy(buf, path, PATH_MAX + 1);
1183 ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
1184 sem_fini, param, NULL);
1186 find_param_fini(param);
1188 return ret < 0 ? ret : 0;
1191 int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
1193 int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
1196 llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lov name.");
1201 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
1205 fd = open(path, O_RDONLY);
1208 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
1212 rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
1219 * If uuidp is NULL, return the number of available obd uuids.
1220 * If uuidp is non-NULL, then it will return the uuids of the obds. If
1221 * there are more OSTs then allocated to uuidp, then an error is returned with
1222 * the ost_count set to number of available obd uuids.
1224 int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
1226 struct obd_uuid lov_name;
1229 int rc = 0, index = 0;
1231 /* Get the lov name */
1232 rc = llapi_file_fget_lov_uuid(fd, &lov_name);
1236 /* Now get the ost uuids from /proc */
1237 snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
1239 fp = fopen(buf, "r");
1242 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'", buf);
1246 while (fgets(buf, sizeof(buf), fp) != NULL) {
1247 if (uuidp && (index < *ost_count)) {
1248 if (sscanf(buf, "%d: %s", &index, uuidp[index].uuid) <2)
1256 if (uuidp && (index >= *ost_count))
1263 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
1268 root = opendir(mnt);
1271 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
1276 rc = ioctl(dirfd(root), LL_IOC_GETOBDCOUNT, count);
1284 /* Check if user specified value matches a real uuid. Ignore _UUID,
1285 * -osc-4ba41334, other trailing gunk in comparison.
1286 * @param real_uuid ends in "_UUID"
1287 * @param search_uuid may or may not end in "_UUID"
1289 int llapi_uuid_match(char *real_uuid, char *search_uuid)
1291 int cmplen = strlen(real_uuid);
1292 int searchlen = strlen(search_uuid);
1294 if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
1296 if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
1299 /* The UUIDs may legitimately be different lengths, if
1300 * the system was upgraded from an older version. */
1301 if (cmplen != searchlen)
1304 return (strncmp(search_uuid, real_uuid, cmplen) == 0);
1307 /* Here, param->obduuid points to a single obduuid, the index of which is
1308 * returned in param->obdindex */
1309 static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
1311 struct obd_uuid lov_uuid;
1312 char uuid[sizeof(struct obd_uuid)];
1317 if (param->got_uuids)
1320 /* Get the lov name */
1321 rc = llapi_file_fget_lov_uuid(dirfd(dir), &lov_uuid);
1323 if (rc != -ENOTTY) {
1324 llapi_error(LLAPI_MSG_ERROR, rc,
1325 "error: can't get lov name: %s", dname);
1332 param->got_uuids = 1;
1334 /* Now get the ost uuids from /proc */
1335 snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
1337 fp = fopen(buf, "r");
1340 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'", buf);
1344 if (!param->obduuid && !param->quiet && !param->obds_printed)
1345 llapi_printf(LLAPI_MSG_NORMAL, "OBDS:\n");
1347 while (fgets(buf, sizeof(buf), fp) != NULL) {
1348 if (sscanf(buf, "%d: %s", &index, uuid) < 2)
1351 if (param->obduuid) {
1352 if (llapi_uuid_match(uuid, param->obduuid->uuid)) {
1353 param->obdindex = index;
1356 } else if (!param->quiet && !param->obds_printed) {
1357 /* Print everything */
1358 llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
1361 param->obds_printed = 1;
1365 if (param->obduuid && (param->obdindex == OBD_NOT_FOUND)) {
1366 llapi_err_noerrno(LLAPI_MSG_ERROR,
1367 "error: %s: unknown obduuid: %s",
1368 __func__, param->obduuid->uuid);
1375 /* In this case, param->obduuid will be an array of obduuids and
1376 * obd index for all these obduuids will be returned in
1377 * param->obdindexes */
1378 static int setup_obd_indexes(DIR *dir, struct find_param *param)
1380 struct obd_uuid *uuids = NULL;
1381 int obdcount = INIT_ALLOC_NUM_OSTS;
1382 int ret, obd_valid = 0, obdnum, i;
1384 uuids = (struct obd_uuid *)malloc(INIT_ALLOC_NUM_OSTS *
1385 sizeof(struct obd_uuid));
1390 ret = llapi_lov_get_uuids(dirfd(dir), uuids,
1393 struct obd_uuid *uuids_temp;
1395 if (ret == -EOVERFLOW) {
1396 uuids_temp = realloc(uuids, obdcount *
1397 sizeof(struct obd_uuid));
1398 if (uuids_temp != NULL)
1399 goto retry_get_uuids;
1404 llapi_error(LLAPI_MSG_ERROR, ret, "get ost uuid failed");
1408 param->obdindexes = malloc(param->num_obds * sizeof(param->obdindex));
1409 if (param->obdindexes == NULL)
1412 for (obdnum = 0; obdnum < param->num_obds; obdnum++) {
1413 for (i = 0; i < obdcount; i++) {
1414 if (llapi_uuid_match(uuids[i].uuid,
1415 param->obduuid[obdnum].uuid)) {
1416 param->obdindexes[obdnum] = i;
1421 if (i >= obdcount) {
1422 param->obdindexes[obdnum] = OBD_NOT_FOUND;
1423 llapi_err_noerrno(LLAPI_MSG_ERROR,
1424 "error: %s: unknown obduuid: %s",
1426 param->obduuid[obdnum].uuid);
1432 param->obdindex = OBD_NOT_FOUND;
1434 param->obdindex = obd_valid;
1436 param->got_uuids = 1;
1441 int llapi_ostlist(char *path, struct find_param *param)
1446 dir = opendir(path);
1450 ret = setup_obd_uuid(dir, path, param);
1457 * Given a filesystem name, or a pathname of a file on a lustre filesystem,
1458 * tries to determine the path to the filesystem's clilov directory under /proc
1460 * fsname is limited to MTI_NAME_MAXLEN in lustre_idl.h
1461 * The NUL terminator is compensated by the additional "%s" bytes. */
1462 #define LOV_LEN (sizeof("/proc/fs/lustre/lov/%s-clilov-*") + MTI_NAME_MAXLEN)
1463 static int clilovpath(const char *fsname, const char *const pathname,
1467 char pattern[LOV_LEN];
1468 char buffer[PATH_MAX + 1];
1470 if (fsname == NULL) {
1471 rc = llapi_search_fsname(pathname, buffer);
1477 snprintf(pattern, sizeof(pattern), "/proc/fs/lustre/lov/%s-clilov-*",
1480 rc = first_match(pattern, buffer);
1484 strncpy(clilovpath, buffer, sizeof(buffer));
1490 * Given the path to a stripe attribute proc file, tries to open and
1491 * read the attribute and return the value using the attr parameter
1493 static int sattr_read_attr(const char *const fpath,
1498 char line[PATH_MAX + 1];
1501 f = fopen(fpath, "r");
1504 llapi_error(LLAPI_MSG_ERROR, rc, "Cannot open '%s'", fpath);
1508 if (fgets(line, sizeof(line), f) != NULL) {
1511 llapi_error(LLAPI_MSG_ERROR, errno, "Cannot read from '%s'", fpath);
1520 * Tries to determine the default stripe attributes for a given filesystem. The
1521 * filesystem to check should be specified by fsname, or will be determined
1524 static int sattr_get_defaults(const char *const fsname,
1525 const char *const pathname,
1526 unsigned int *scount,
1527 unsigned int *ssize,
1528 unsigned int *soffset)
1531 char dpath[PATH_MAX + 1];
1532 char fpath[PATH_MAX + 1];
1534 rc = clilovpath(fsname, pathname, dpath);
1539 snprintf(fpath, PATH_MAX, "%s/stripecount", dpath);
1540 rc = sattr_read_attr(fpath, scount);
1546 snprintf(fpath, PATH_MAX, "%s/stripesize", dpath);
1547 rc = sattr_read_attr(fpath, ssize);
1553 snprintf(fpath, PATH_MAX, "%s/stripeoffset", dpath);
1554 rc = sattr_read_attr(fpath, soffset);
1563 * Tries to gather the default stripe attributes for a given filesystem. If
1564 * the attributes can be determined, they are cached for easy retreival the
1565 * next time they are needed. Only a single filesystem's attributes are
1568 static int sattr_cache_get_defaults(const char *const fsname,
1569 const char *const pathname,
1570 unsigned int *scount,
1571 unsigned int *ssize,
1572 unsigned int *soffset)
1575 char fsname[PATH_MAX + 1];
1576 unsigned int stripecount;
1577 unsigned int stripesize;
1578 unsigned int stripeoffset;
1584 char fsname_buf[PATH_MAX + 1];
1585 unsigned int tmp[3];
1587 if (fsname == NULL) {
1588 rc = llapi_search_fsname(pathname, fsname_buf);
1592 strncpy(fsname_buf, fsname, PATH_MAX);
1595 if (strncmp(fsname_buf, cache.fsname, PATH_MAX) != 0) {
1597 * Ensure all 3 sattrs (count, size, and offset) are
1598 * successfully retrieved and stored in tmp before writing to
1601 rc = sattr_get_defaults(fsname_buf, NULL, &tmp[0], &tmp[1],
1606 cache.stripecount = tmp[0];
1607 cache.stripesize = tmp[1];
1608 cache.stripeoffset = tmp[2];
1609 strncpy(cache.fsname, fsname_buf, PATH_MAX);
1613 *scount = cache.stripecount;
1615 *ssize = cache.stripesize;
1617 *soffset = cache.stripeoffset;
1622 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
1623 struct lov_user_ost_data_v1 *objects,
1624 int is_dir, int verbose, int depth,
1625 int raw, char *pool_name)
1627 char *prefix = is_dir ? "" : "lmm_";
1628 char nl = is_dir ? ' ' : '\n';
1631 if (is_dir && lum->lmm_object_seq == FID_SEQ_LOV_DEFAULT) {
1632 lum->lmm_object_seq = FID_SEQ_OST_MDT0;
1633 if (verbose & VERBOSE_DETAIL)
1634 llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
1637 if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
1638 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
1640 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
1641 llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic: 0x%08X\n",
1643 llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq: "LPX64"\n",
1644 lum->lmm_object_seq);
1645 llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: "LPX64"\n",
1646 lum->lmm_object_id);
1649 if (verbose & VERBOSE_COUNT) {
1650 if (verbose & ~VERBOSE_COUNT)
1651 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
1654 if (!raw && lum->lmm_stripe_count == 0) {
1655 unsigned int scount;
1656 rc = sattr_cache_get_defaults(NULL, path,
1660 llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
1663 llapi_error(LLAPI_MSG_ERROR, rc,
1664 "Cannot determine default"
1667 llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
1668 lum->lmm_stripe_count ==
1669 (typeof(lum->lmm_stripe_count))(-1)
1670 ? -1 : lum->lmm_stripe_count, nl);
1673 llapi_printf(LLAPI_MSG_NORMAL, "%hd%c",
1674 (__s16)lum->lmm_stripe_count, nl);
1678 if (verbose & VERBOSE_SIZE) {
1679 if (verbose & ~VERBOSE_SIZE)
1680 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
1682 if (is_dir && !raw && lum->lmm_stripe_size == 0) {
1684 rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
1687 llapi_printf(LLAPI_MSG_NORMAL, "%u%c", ssize,
1690 llapi_error(LLAPI_MSG_ERROR, rc,
1691 "Cannot determine default"
1694 llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
1695 lum->lmm_stripe_size, nl);
1699 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
1700 llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_pattern: %x%c",
1701 lum->lmm_pattern, nl);
1704 if ((verbose & VERBOSE_GENERATION) && !is_dir) {
1705 if (verbose & ~VERBOSE_GENERATION)
1706 llapi_printf(LLAPI_MSG_NORMAL, "%slayout_gen: ",
1708 llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
1709 (int)lum->u.lum_layout_gen, nl);
1712 if (verbose & VERBOSE_OFFSET) {
1713 if (verbose & ~VERBOSE_OFFSET)
1714 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
1717 llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
1718 lum->lmm_stripe_offset ==
1719 (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
1720 lum->lmm_stripe_offset, nl);
1722 llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
1723 objects[0].l_ost_idx, nl);
1726 if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
1727 if (verbose & ~VERBOSE_POOL)
1728 llapi_printf(LLAPI_MSG_NORMAL, "%spool: ",
1730 llapi_printf(LLAPI_MSG_NORMAL, "%s%c", pool_name, nl);
1733 if (is_dir && (verbose != VERBOSE_OBJID))
1734 llapi_printf(LLAPI_MSG_NORMAL, "\n");
1737 void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
1738 struct lov_user_ost_data_v1 *objects,
1739 char *path, int is_dir,
1740 int obdindex, int depth, int header, int raw)
1742 int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
1745 for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
1746 if (obdindex == objects[i].l_ost_idx) {
1754 lov_dump_user_lmm_header(lum, path, objects, is_dir, header,
1755 depth, raw, pool_name);
1757 if (!is_dir && (header & VERBOSE_OBJID)) {
1759 llapi_printf(LLAPI_MSG_NORMAL,
1760 "\tobdidx\t\t objid\t\tobjid\t\t group\n");
1762 for (i = 0; i < lum->lmm_stripe_count; i++) {
1763 int idx = objects[i].l_ost_idx;
1764 long long oid = objects[i].l_object_id;
1765 long long gr = objects[i].l_object_seq;
1766 if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
1767 llapi_printf(LLAPI_MSG_NORMAL,
1768 "\t%6u\t%14llu\t%#13llx\t%14llu%s\n",
1770 obdindex == idx ? " *" : "");
1772 llapi_printf(LLAPI_MSG_NORMAL, "\n");
1776 void llapi_lov_dump_user_lmm(struct find_param *param,
1777 char *path, int is_dir)
1779 switch(*(__u32 *)¶m->lmd->lmd_lmm) { /* lum->lmm_magic */
1780 case LOV_USER_MAGIC_V1:
1781 lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, NULL,
1782 param->lmd->lmd_lmm.lmm_objects,
1784 param->obdindex, param->maxdepth,
1785 param->verbose, param->raw);
1787 case LOV_USER_MAGIC_V3: {
1788 char pool_name[LOV_MAXPOOLNAME + 1];
1789 struct lov_user_ost_data_v1 *objects;
1790 struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
1792 strncpy(pool_name, lmmv3->lmm_pool_name, LOV_MAXPOOLNAME);
1793 pool_name[LOV_MAXPOOLNAME] = '\0';
1794 objects = lmmv3->lmm_objects;
1795 lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, pool_name,
1796 objects, path, is_dir,
1797 param->obdindex, param->maxdepth,
1798 param->verbose, param->raw);
1802 llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic: %#x "
1803 "(expecting one of %#x %#x %#x)\n",
1804 *(__u32 *)¶m->lmd->lmd_lmm,
1805 LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3);
1810 int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
1816 fname = strrchr(path, '/');
1818 /* It should be a file (or other non-directory) */
1819 if (fname == NULL) {
1820 dname = (char *)malloc(2);
1824 fname = (char *)path;
1826 dname = (char *)malloc(fname - path + 1);
1829 strncpy(dname, path, fname - path);
1830 dname[fname - path] = '\0';
1834 fd = open(dname, O_RDONLY);
1841 strcpy((char *)lum, fname);
1842 if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
1845 if (close(fd) == -1 && rc == 0)
1852 int llapi_file_lookup(int dirfd, const char *name)
1854 struct obd_ioctl_data data = { 0 };
1859 if (dirfd < 0 || name == NULL)
1862 data.ioc_version = OBD_IOCTL_VERSION;
1863 data.ioc_len = sizeof(data);
1864 data.ioc_inlbuf1 = (char *)name;
1865 data.ioc_inllen1 = strlen(name) + 1;
1867 rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
1869 llapi_error(LLAPI_MSG_ERROR, rc,
1870 "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
1875 rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
1881 /* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
1882 * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
1884 * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
1885 * The table below gives the answers for the specified parameters (value and
1886 * sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
1887 * --------------------------------------
1888 * 1 | file > limit; sign > 0 | -1 / -1 |
1889 * 2 | file = limit; sign > 0 | -1 / -1 |
1890 * 3 | file < limit; sign > 0 | ? / 1 |
1891 * 4 | file > limit; sign = 0 | -1 / -1 |
1892 * 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
1893 * 6 | file < limit; sign = 0 | ? / -1 |
1894 * 7 | file > limit; sign < 0 | 1 / 1 |
1895 * 8 | file = limit; sign < 0 | ? / -1 |
1896 * 9 | file < limit; sign < 0 | ? / -1 |
1897 * --------------------------------------
1898 * Note: 5th actually means that the value is within the interval
1899 * (limit - margin, limit]. */
1900 static int find_value_cmp(unsigned long long file, unsigned long long limit,
1901 int sign, int negopt, unsigned long long margin,
1907 /* Drop the fraction of margin (of days). */
1908 if (file + margin <= limit)
1910 } else if (sign == 0) {
1911 if (file <= limit && file + margin > limit)
1913 else if (file + margin <= limit)
1915 } else if (sign < 0) {
1922 return negopt ? ~ret + 1 : ret;
1925 /* Check if the file time matches all the given criteria (e.g. --atime +/-N).
1926 * Return -1 or 1 if file timestamp does not or does match the given criteria
1927 * correspondingly. Return 0 if the MDS time is being checked and there are
1928 * attributes on OSTs and it is not yet clear if the timespamp matches.
1930 * If 0 is returned, we need to do another RPC to the OSTs to obtain the
1931 * updated timestamps. */
1932 static int find_time_check(lstat_t *st, struct find_param *param, int mds)
1937 /* Check if file is accepted. */
1939 ret = find_value_cmp(st->st_atime, param->atime,
1940 param->asign, param->exclude_atime,
1948 ret = find_value_cmp(st->st_mtime, param->mtime,
1949 param->msign, param->exclude_mtime,
1954 /* If the previous check matches, but this one is not yet clear,
1955 * we should return 0 to do an RPC on OSTs. */
1961 ret = find_value_cmp(st->st_ctime, param->ctime,
1962 param->csign, param->exclude_ctime,
1967 /* If the previous check matches, but this one is not yet clear,
1968 * we should return 0 to do an RPC on OSTs. */
1976 static int cb_find_init(char *path, DIR *parent, DIR *dir,
1977 void *data, cfs_dirent_t *de)
1979 struct find_param *param = (struct find_param *)data;
1980 int decision = 1; /* 1 is accepted; -1 is rejected. */
1981 lstat_t *st = ¶m->lmd->lmd_st;
1983 int checked_type = 0;
1986 LASSERT(parent != NULL || dir != NULL);
1988 if (param->have_fileinfo == 0)
1989 param->lmd->lmd_lmm.lmm_stripe_count = 0;
1991 /* If a regular expression is presented, make the initial decision */
1992 if (param->pattern != NULL) {
1993 char *fname = strrchr(path, '/');
1994 fname = (fname == NULL ? path : fname + 1);
1995 ret = fnmatch(param->pattern, fname, 0);
1996 if ((ret == FNM_NOMATCH && !param->exclude_pattern) ||
1997 (ret == 0 && param->exclude_pattern))
2001 /* See if we can check the file type from the dirent. */
2002 if (param->type && de != NULL && de->d_type != DT_UNKNOWN &&
2003 de->d_type < DT_MAX) {
2005 if (llapi_dir_filetype_table[de->d_type] == param->type) {
2006 if (param->exclude_type)
2009 if (!param->exclude_type)
2017 /* Request MDS for the stat info if some of these parameters need
2018 * to be compared. */
2019 if (param->obduuid || param->check_uid || param->check_gid ||
2020 param->check_pool || param->atime || param->ctime ||
2021 param->mtime || param->check_size)
2023 if (param->type && checked_type == 0)
2026 if (param->have_fileinfo == 0 && decision == 0) {
2028 /* retrieve needed file info */
2029 ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO,
2030 (void *)param->lmd);
2032 char *fname = strrchr(path, '/');
2033 fname = (fname == NULL ? path : fname + 1);
2035 /* retrieve needed file info */
2036 strncpy((char *)param->lmd, fname, param->lumlen);
2037 ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
2038 (void *)param->lmd);
2043 if (errno == ENOTTY) {
2044 /* ioctl is not supported, it is not a lustre fs.
2045 * Do the regular lstat(2) instead. */
2047 ret = lstat_f(path, st);
2050 llapi_error(LLAPI_MSG_ERROR, ret,
2051 "error: %s: lstat failed for %s",
2055 } else if (errno == ENOENT) {
2056 llapi_error(LLAPI_MSG_WARN, -ENOENT,
2057 "warning: %s: %s does not exist",
2062 llapi_error(LLAPI_MSG_ERROR, ret,
2063 "error: %s: %s failed for %s",
2064 __func__, dir ? "LL_IOC_MDC_GETINFO" :
2065 "IOC_MDC_GETFILEINFO", path);
2070 if (param->type && !checked_type) {
2071 if ((st->st_mode & S_IFMT) == param->type) {
2072 if (param->exclude_type)
2075 if (!param->exclude_type)
2081 if (param->obduuid) {
2082 if (lustre_fs && param->got_uuids &&
2083 param->st_dev != st->st_dev) {
2084 /* A lustre/lustre mount point is crossed. */
2085 param->got_uuids = 0;
2086 param->obds_printed = 0;
2087 param->obdindex = OBD_NOT_FOUND;
2090 if (lustre_fs && !param->got_uuids) {
2091 ret = setup_obd_indexes(dir ? dir : parent, param);
2095 param->st_dev = st->st_dev;
2096 } else if (!lustre_fs && param->got_uuids) {
2097 /* A lustre/non-lustre mount point is crossed. */
2098 param->got_uuids = 0;
2099 param->obdindex = OBD_NOT_FOUND;
2103 /* If an OBD UUID is specified but no one matches, skip this file. */
2104 if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
2107 /* If a OST UUID is given, and some OST matches, check it here. */
2108 if (param->obdindex != OBD_NOT_FOUND) {
2109 if (!S_ISREG(st->st_mode))
2112 /* Only those files should be accepted, which have a
2113 * stripe on the specified OST. */
2114 if (!param->lmd->lmd_lmm.lmm_stripe_count) {
2118 struct lov_user_ost_data_v1 *lmm_objects;
2120 if (param->lmd->lmd_lmm.lmm_magic ==
2121 LOV_USER_MAGIC_V3) {
2122 struct lov_user_md_v3 *lmmv3 =
2123 (void *)¶m->lmd->lmd_lmm;
2125 lmm_objects = lmmv3->lmm_objects;
2127 lmm_objects = param->lmd->lmd_lmm.lmm_objects;
2131 i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
2132 for (j = 0; j < param->num_obds; j++) {
2133 if (param->obdindexes[j] ==
2134 lmm_objects[i].l_ost_idx) {
2135 if (param->exclude_obd)
2140 /* If an OBD matches, just break */
2141 if (j != param->num_obds)
2145 if (i == param->lmd->lmd_lmm.lmm_stripe_count) {
2146 if (!param->exclude_obd)
2152 if (param->check_uid) {
2153 if (st->st_uid == param->uid) {
2154 if (param->exclude_uid)
2157 if (!param->exclude_uid)
2162 if (param->check_gid) {
2163 if (st->st_gid == param->gid) {
2164 if (param->exclude_gid)
2167 if (!param->exclude_gid)
2172 if (param->check_pool) {
2173 struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
2175 /* empty requested pool is taken as no pool search => V1 */
2176 if (((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) &&
2177 (param->poolname[0] == '\0')) ||
2178 ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
2179 (strncmp(lmmv3->lmm_pool_name,
2180 param->poolname, LOV_MAXPOOLNAME) == 0)) ||
2181 ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
2182 (strcmp(param->poolname, "*") == 0))) {
2183 if (param->exclude_pool)
2186 if (!param->exclude_pool)
2191 /* Check the time on mds. */
2193 if (param->atime || param->ctime || param->mtime) {
2196 for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
2197 param->lmd->lmd_lmm.lmm_stripe_count)
2199 decision = find_time_check(st, param, for_mds);
2204 /* If file still fits the request, ask ost for updated info.
2205 The regular stat is almost of the same speed as some new
2206 'glimpse-size-ioctl'. */
2208 if (param->check_size && S_ISREG(st->st_mode) &&
2209 param->lmd->lmd_lmm.lmm_stripe_count)
2213 /* For regular files with the stripe the decision may have not
2214 * been taken yet if *time or size is to be checked. */
2215 LASSERT(S_ISREG(st->st_mode) &&
2216 param->lmd->lmd_lmm.lmm_stripe_count);
2218 if (param->obdindex != OBD_NOT_FOUND) {
2219 /* Check whether the obd is active or not, if it is
2220 * not active, just print the object affected by this
2223 struct obd_statfs stat_buf;
2224 struct obd_uuid uuid_buf;
2226 memset(&stat_buf, 0, sizeof(struct obd_statfs));
2227 memset(&uuid_buf, 0, sizeof(struct obd_uuid));
2228 ret = llapi_obd_statfs(path, LL_STATFS_LOV,
2229 param->obdindex, &stat_buf,
2232 llapi_printf(LLAPI_MSG_NORMAL,
2233 "obd_uuid: %s failed %s ",
2234 param->obduuid->uuid,
2240 ret = ioctl(dirfd(dir), IOC_LOV_GETINFO,
2241 (void *)param->lmd);
2242 } else if (parent) {
2243 ret = ioctl(dirfd(parent), IOC_LOV_GETINFO,
2244 (void *)param->lmd);
2248 if (errno == ENOENT) {
2249 llapi_error(LLAPI_MSG_ERROR, -ENOENT,
2250 "warning: %s: %s does not exist",
2255 llapi_error(LLAPI_MSG_ERROR, ret,
2256 "%s: IOC_LOV_GETINFO on %s failed",
2262 /* Check the time on osc. */
2263 decision = find_time_check(st, param, 0);
2270 if (param->check_size)
2271 decision = find_value_cmp(st->st_size, param->size,
2272 param->size_sign, param->exclude_size,
2273 param->size_units, 0);
2275 if (decision != -1) {
2276 llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
2278 llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
2280 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2284 /* Do not get down anymore? */
2285 if (param->depth == param->maxdepth)
2292 int llapi_find(char *path, struct find_param *param)
2294 return param_callback(path, cb_find_init, cb_common_fini, param);
2298 * Get MDT number that the file/directory inode referenced
2299 * by the open fd resides on.
2300 * Return 0 and mdtidx on success, or -ve errno.
2302 int llapi_file_fget_mdtidx(int fd, int *mdtidx)
2304 if (ioctl(fd, LL_IOC_GET_MDTIDX, &mdtidx) < 0)
2309 static int cb_get_mdt_index(char *path, DIR *parent, DIR *d, void *data,
2312 struct find_param *param = (struct find_param *)data;
2316 LASSERT(parent != NULL || d != NULL);
2319 ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
2320 } else if (parent) {
2323 fd = open(path, O_RDONLY);
2325 ret = llapi_file_fget_mdtidx(fd, &mdtidx);
2333 if (ret == -ENODATA) {
2334 if (!param->obduuid)
2335 llapi_printf(LLAPI_MSG_NORMAL,
2336 "%s has no stripe info\n", path);
2338 } else if (ret == -ENOENT) {
2339 llapi_error(LLAPI_MSG_WARN, ret,
2340 "warning: %s: %s does not exist",
2343 } else if (ret == -ENOTTY) {
2344 llapi_error(LLAPI_MSG_ERROR, ret,
2345 "%s: '%s' not on a Lustre fs?",
2348 llapi_error(LLAPI_MSG_ERROR, ret,
2349 "error: %s: LL_IOC_GET_MDTIDX failed for %s",
2356 llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
2358 llapi_printf(LLAPI_MSG_NORMAL, "%s MDT index: %d\n",
2362 /* Do not get down anymore? */
2363 if (param->depth == param->maxdepth)
2370 static int cb_getstripe(char *path, DIR *parent, DIR *d, void *data,
2373 struct find_param *param = (struct find_param *)data;
2376 LASSERT(parent != NULL || d != NULL);
2378 if (param->obduuid) {
2380 ret = setup_obd_uuid(d ? d : parent, path, param);
2386 ret = ioctl(dirfd(d), LL_IOC_LOV_GETSTRIPE,
2387 (void *)¶m->lmd->lmd_lmm);
2388 } else if (parent) {
2389 char *fname = strrchr(path, '/');
2390 fname = (fname == NULL ? path : fname + 1);
2392 strncpy((char *)¶m->lmd->lmd_lmm, fname, param->lumlen);
2394 ret = ioctl(dirfd(parent), IOC_MDC_GETFILESTRIPE,
2395 (void *)¶m->lmd->lmd_lmm);
2399 if (errno == ENODATA && d != NULL) {
2400 /* We need to "fake" the "use the default" values
2401 * since the lmm struct is zeroed out at this point.
2402 * The magic needs to be set in order to satisfy
2403 * a check later on in the code path.
2404 * The object_seq needs to be set for the "(Default)"
2405 * prefix to be displayed. */
2406 struct lov_user_md *lmm = ¶m->lmd->lmd_lmm;
2407 lmm->lmm_magic = LOV_MAGIC_V1;
2409 lmm->lmm_object_seq = FID_SEQ_LOV_DEFAULT;
2410 lmm->lmm_stripe_count = 0;
2411 lmm->lmm_stripe_size = 0;
2412 lmm->lmm_stripe_offset = -1;
2415 } else if (errno == ENODATA && parent != NULL) {
2416 if (!param->obduuid)
2417 llapi_printf(LLAPI_MSG_NORMAL,
2418 "%s has no stripe info\n", path);
2420 } else if (errno == ENOENT) {
2421 llapi_error(LLAPI_MSG_WARN, -ENOENT,
2422 "warning: %s: %s does not exist",
2425 } else if (errno == ENOTTY) {
2427 llapi_error(LLAPI_MSG_ERROR, ret,
2428 "%s: '%s' not on a Lustre fs?",
2432 llapi_error(LLAPI_MSG_ERROR, ret,
2433 "error: %s: %s failed for %s",
2434 __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
2435 "IOC_MDC_GETFILESTRIPE", path);
2442 if (!param->get_mdt_index)
2443 llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
2446 /* Do not get down anymore? */
2447 if (param->depth == param->maxdepth)
2454 int llapi_getstripe(char *path, struct find_param *param)
2456 return param_callback(path, param->get_mdt_index ?
2457 cb_get_mdt_index : cb_getstripe,
2458 cb_common_fini, param);
2461 int llapi_obd_statfs(char *path, __u32 type, __u32 index,
2462 struct obd_statfs *stat_buf,
2463 struct obd_uuid *uuid_buf)
2466 char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
2468 struct obd_ioctl_data data = { 0 };
2471 data.ioc_inlbuf1 = (char *)&type;
2472 data.ioc_inllen1 = sizeof(__u32);
2473 data.ioc_inlbuf2 = (char *)&index;
2474 data.ioc_inllen2 = sizeof(__u32);
2475 data.ioc_pbuf1 = (char *)stat_buf;
2476 data.ioc_plen1 = sizeof(struct obd_statfs);
2477 data.ioc_pbuf2 = (char *)uuid_buf;
2478 data.ioc_plen2 = sizeof(struct obd_uuid);
2480 rc = obd_ioctl_pack(&data, &rawbuf, sizeof(raw));
2482 llapi_error(LLAPI_MSG_ERROR, rc,
2483 "llapi_obd_statfs: error packing ioctl data");
2487 fd = open(path, O_RDONLY);
2488 if (errno == EISDIR)
2489 fd = open(path, O_DIRECTORY | O_RDONLY);
2492 rc = errno ? -errno : -EBADF;
2493 llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
2497 rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
2499 rc = errno ? -errno : -EINVAL;
2505 #define MAX_STRING_SIZE 128
2506 #define DEVICES_LIST "/proc/fs/lustre/devices"
2508 int llapi_ping(char *obd_type, char *obd_name)
2510 char path[MAX_STRING_SIZE];
2514 snprintf(path, MAX_STRING_SIZE, "/proc/fs/lustre/%s/%s/ping",
2515 obd_type, obd_name);
2517 fd = open(path, O_WRONLY);
2520 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
2524 rc = write(fd, buf, 1);
2534 int llapi_target_iterate(int type_num, char **obd_type,
2535 void *args, llapi_cb_t cb)
2537 char buf[MAX_STRING_SIZE];
2538 FILE *fp = fopen(DEVICES_LIST, "r");
2543 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening "DEVICES_LIST);
2547 while (fgets(buf, sizeof(buf), fp) != NULL) {
2548 char *obd_type_name = NULL;
2549 char *obd_name = NULL;
2550 char *obd_uuid = NULL;
2552 struct obd_statfs osfs_buffer;
2554 while(bufp[0] == ' ')
2557 for(i = 0; i < 3; i++) {
2558 obd_type_name = strsep(&bufp, " ");
2560 obd_name = strsep(&bufp, " ");
2561 obd_uuid = strsep(&bufp, " ");
2563 memset(&osfs_buffer, 0, sizeof (osfs_buffer));
2565 for (i = 0; i < type_num; i++) {
2566 if (strcmp(obd_type_name, obd_type[i]) != 0)
2569 cb(obd_type_name, obd_name, obd_uuid, args);
2576 static void do_target_check(char *obd_type_name, char *obd_name,
2577 char *obd_uuid, void *args)
2581 rc = llapi_ping(obd_type_name, obd_name);
2582 if (rc == ENOTCONN) {
2583 llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
2585 llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
2587 llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
2591 int llapi_target_check(int type_num, char **obd_type, char *dir)
2593 return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
2596 #undef MAX_STRING_SIZE
2598 int llapi_catinfo(char *dir, char *keyword, char *node_name)
2600 char raw[OBD_MAX_IOCTL_BUFFER];
2601 char out[LLOG_CHUNK_SIZE];
2603 struct obd_ioctl_data data = { 0 };
2608 sprintf(key, "%s", keyword);
2609 memset(raw, 0, sizeof(raw));
2610 memset(out, 0, sizeof(out));
2611 data.ioc_inlbuf1 = key;
2612 data.ioc_inllen1 = strlen(key) + 1;
2614 data.ioc_inlbuf2 = node_name;
2615 data.ioc_inllen2 = strlen(node_name) + 1;
2617 data.ioc_pbuf1 = out;
2618 data.ioc_plen1 = sizeof(out);
2619 rc = obd_ioctl_pack(&data, &buf, sizeof(raw));
2623 root = opendir(dir);
2626 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", dir);
2630 rc = ioctl(dirfd(root), OBD_IOC_LLOG_CATINFO, buf);
2633 llapi_error(LLAPI_MSG_ERROR, rc,
2634 "ioctl OBD_IOC_CATINFO failed");
2636 llapi_printf(LLAPI_MSG_NORMAL, "%s", data.ioc_pbuf1);
2643 /* Is this a lustre fs? */
2644 int llapi_is_lustre_mnttype(const char *type)
2646 return (strcmp(type, "lustre") == 0 || strcmp(type,"lustre_lite") == 0);
2649 /* Is this a lustre client fs? */
2650 int llapi_is_lustre_mnt(struct mntent *mnt)
2652 return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
2653 strstr(mnt->mnt_fsname, ":/") != NULL);
2656 int llapi_quotacheck(char *mnt, int check_type)
2661 root = opendir(mnt);
2664 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2668 rc = ioctl(dirfd(root), LL_IOC_QUOTACHECK, check_type);
2676 int llapi_poll_quotacheck(char *mnt, struct if_quotacheck *qchk)
2682 root = opendir(mnt);
2685 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2690 rc = ioctl(dirfd(root), LL_IOC_POLL_QUOTACHECK, qchk);
2694 if (poll_intvl < 30)
2702 int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
2707 root = opendir(mnt);
2710 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2714 rc = ioctl(dirfd(root), LL_IOC_QUOTACTL, qctl);
2722 static int cb_quotachown(char *path, DIR *parent, DIR *d, void *data,
2725 struct find_param *param = (struct find_param *)data;
2729 LASSERT(parent != NULL || d != NULL);
2732 rc = ioctl(dirfd(d), LL_IOC_MDC_GETINFO,
2733 (void *)param->lmd);
2734 } else if (parent) {
2735 char *fname = strrchr(path, '/');
2736 fname = (fname == NULL ? path : fname + 1);
2738 strncpy((char *)param->lmd, fname, param->lumlen);
2739 rc = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
2740 (void *)param->lmd);
2746 if (errno == ENODATA) {
2747 if (!param->obduuid && !param->quiet)
2748 llapi_error(LLAPI_MSG_ERROR, -ENODATA,
2749 "%s has no stripe info", path);
2751 } else if (errno == ENOENT) {
2752 llapi_error(LLAPI_MSG_ERROR, -ENOENT,
2753 "warning: %s: %s does not exist",
2756 } else if (errno != EISDIR) {
2758 llapi_error(LLAPI_MSG_ERROR, rc, "%s ioctl failed for %s.",
2759 d ? "LL_IOC_MDC_GETINFO" :
2760 "IOC_MDC_GETFILEINFO", path);
2765 st = ¶m->lmd->lmd_st;
2767 /* libc chown() will do extra check, and if the real owner is
2768 * the same as the ones to set, it won't fall into kernel, so
2769 * invoke syscall directly. */
2770 rc = syscall(SYS_chown, path, -1, -1);
2772 llapi_error(LLAPI_MSG_ERROR, errno,
2773 "error: chown %s", path);
2775 rc = chmod(path, st->st_mode);
2778 llapi_error(LLAPI_MSG_ERROR, rc, "error: chmod %s (%hu)",
2785 int llapi_quotachown(char *path, int flag)
2787 struct find_param param;
2789 memset(¶m, 0, sizeof(param));
2790 param.recursive = 1;
2794 return param_callback(path, cb_quotachown, NULL, ¶m);
2800 #include <sys/wait.h>
2804 static int rmtacl_notify(int ops)
2808 int found = 0, fd, rc;
2810 fp = setmntent(MOUNTED, "r");
2813 llapi_error(LLAPI_MSG_ERROR, rc,
2814 "error setmntent(%s)", MOUNTED);
2819 mnt = getmntent(fp);
2823 if (!llapi_is_lustre_mnt(mnt))
2826 fd = open(mnt->mnt_dir, O_RDONLY | O_DIRECTORY);
2829 llapi_error(LLAPI_MSG_ERROR, rc,
2830 "Can't open '%s'\n", mnt->mnt_dir);
2834 rc = ioctl(fd, LL_IOC_RMTACL, ops);
2837 llapi_error(LLAPI_MSG_ERROR, rc, "ioctl %d\n", fd);
2847 static char *next_token(char *p, int div)
2853 while (*p && *p != ':' && !isspace(*p))
2856 while (*p == ':' || isspace(*p))
2859 return *p ? p : NULL;
2862 static int rmtacl_name2id(char *name, int is_user)
2867 pw = getpwnam(name);
2871 return (int)(pw->pw_uid);
2875 gr = getgrnam(name);
2879 return (int)(gr->gr_gid);
2883 static int isodigit(int c)
2885 return (c >= '0' && c <= '7') ? 1 : 0;
2889 * Whether the name is just digits string (uid/gid) already or not.
2894 static int str_is_id(char *str)
2901 if (*str == 'x' || *str == 'X') { /* for Hex. */
2902 if (!isxdigit(*(++str)))
2905 while (isxdigit(*(++str)));
2906 } else if (isodigit(*str)) { /* for Oct. */
2907 while (isodigit(*(++str)));
2909 } else if (isdigit(*str)) { /* for Dec. */
2910 while (isdigit(*(++str)));
2913 return (*str == 0) ? 1 : 0;
2923 #define RMTACL_OPTNAME(name) name, sizeof(name) - 1
2925 static rmtacl_name_t rmtacl_namelist[] = {
2926 { RMTACL_OPTNAME("user:"), 1, 0 },
2927 { RMTACL_OPTNAME("group:"), 0, 0 },
2928 { RMTACL_OPTNAME("default:user:"), 1, 0 },
2929 { RMTACL_OPTNAME("default:group:"), 0, 0 },
2930 /* for --tabular option */
2931 { RMTACL_OPTNAME("user"), 1, 1 },
2932 { RMTACL_OPTNAME("group"), 0, 1 },
2936 static int rgetfacl_output(char *str)
2938 char *start = NULL, *end = NULL;
2939 int is_user = 0, n, id;
2946 for (rn = rmtacl_namelist; rn->name; rn++) {
2947 if(strncmp(str, rn->name, rn->length) == 0) {
2948 if (!rn->next_token)
2949 start = str + rn->length;
2951 start = next_token(str + rn->length, 0);
2952 is_user = rn->is_user;
2957 end = next_token(start, 1);
2958 if (end == NULL || start == end) {
2959 n = printf("%s", str);
2965 id = rmtacl_name2id(start, is_user);
2966 if (id == INVALID_ID) {
2967 if (str_is_id(start)) {
2969 n = printf("%s", str);
2972 } else if ((id == NOBODY_UID && is_user) ||
2973 (id == NOBODY_GID && !is_user)) {
2975 n = printf("%s", str);
2979 n = printf("%s%d%s", str, id, end);
2984 static int child_status(int status)
2986 return WIFEXITED(status) ? WEXITSTATUS(status) : -1;
2989 static int do_rmtacl(int argc, char *argv[], int ops, int (output_func)(char *))
2992 int fd[2], status, rc;
2999 llapi_error(LLAPI_MSG_ERROR, rc, "Can't create pipe\n");
3006 llapi_error(LLAPI_MSG_ERROR, rc, "Can't fork\n");
3011 /* child process redirects its output. */
3014 if (dup2(fd[1], 1) < 0) {
3016 llapi_error(LLAPI_MSG_ERROR, rc,
3017 "Can't dup2 %d\n", fd[1]);
3027 status = rmtacl_notify(ops);
3031 exit(execvp(argv[0], argv));
3034 /* the following is parent process */
3035 fp = fdopen(fd[0], "r");
3038 llapi_error(LLAPI_MSG_ERROR, rc, "fdopen %d failed\n", fd[0]);
3044 while (fgets(buf, PIPE_BUF, fp) != NULL) {
3045 if (output_func(buf) < 0)
3046 fprintf(stderr, "WARNING: unexpected error!\n[%s]\n",
3052 if (waitpid(pid, &status, 0) < 0) {
3054 llapi_error(LLAPI_MSG_ERROR, rc, "waitpid %d failed\n", pid);
3058 return child_status(status);
3061 int llapi_lsetfacl(int argc, char *argv[])
3063 return do_rmtacl(argc, argv, RMT_LSETFACL, NULL);
3066 int llapi_lgetfacl(int argc, char *argv[])
3068 return do_rmtacl(argc, argv, RMT_LGETFACL, NULL);
3071 int llapi_rsetfacl(int argc, char *argv[])
3073 return do_rmtacl(argc, argv, RMT_RSETFACL, NULL);
3076 int llapi_rgetfacl(int argc, char *argv[])
3078 return do_rmtacl(argc, argv, RMT_RGETFACL, rgetfacl_output);
3081 int llapi_cp(int argc, char *argv[])
3085 rc = rmtacl_notify(RMT_RSETFACL);
3089 exit(execvp(argv[0], argv));
3092 int llapi_ls(int argc, char *argv[])
3096 rc = rmtacl_notify(RMT_LGETFACL);
3100 exit(execvp(argv[0], argv));
3103 /* Print mdtname 'name' into 'buf' using 'format'. Add -MDT0000 if needed.
3104 * format must have %s%s, buf must be > 16
3105 * Eg: if name = "lustre-MDT0000", "lustre", or "lustre-MDT0000_UUID"
3106 * then buf = "lustre-MDT0000"
3108 static int get_mdtname(char *name, char *format, char *buf)
3110 char suffix[]="-MDT0000";
3111 int len = strlen(name);
3113 if ((len > 5) && (strncmp(name + len - 5, "_UUID", 5) == 0)) {
3114 name[len - 5] = '\0';
3119 if ((len <= 16) && strncmp(name + len - 8, "-MDT", 4) == 0) {
3122 /* Not enough room to add suffix */
3123 llapi_err_noerrno(LLAPI_MSG_ERROR,
3124 "MDT name too long |%s|", name);
3129 return sprintf(buf, format, name, suffix);
3132 /** ioctl on filsystem root, with mdtindex sent as data
3133 * \param mdtname path, fsname, or mdtname (lutre-MDT0004)
3134 * \param mdtidxp pointer to integer within data to be filled in with the
3135 * mdt index (0 if no mdt is specified). NULL won't be filled.
3137 static int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
3144 /* Take path, fsname, or MDTname. Assume MDT0000 in the former cases.
3145 Open root and parse mdt index. */
3146 if (mdtname[0] == '/') {
3148 rc = get_root_path(WANT_FD | want_error, NULL, &fd,
3149 (char *)mdtname, -1);
3151 if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
3153 ptr = fsname + strlen(fsname) - 8;
3155 index = strtol(ptr + 4, NULL, 10);
3156 rc = get_root_path(WANT_FD | want_error, fsname, &fd, NULL, -1);
3160 llapi_err_noerrno(LLAPI_MSG_ERROR,
3161 "Can't open %s: %d\n", mdtname, rc);
3168 rc = ioctl(fd, opc, data);
3173 if (rc && want_error)
3174 llapi_error(LLAPI_MSG_ERROR, rc, "ioctl %d err %d", opc, rc);
3180 /****** Changelog API ********/
3182 static int changelog_ioctl(const char *mdtname, int opc, int id,
3183 long long recno, int flags)
3185 struct ioc_changelog data;
3189 data.icc_recno = recno;
3190 data.icc_flags = flags;
3191 idx = (int *)(&data.icc_mdtindex);
3193 return root_ioctl(mdtname, opc, &data, idx, WANT_ERROR);
3196 #define CHANGELOG_PRIV_MAGIC 0xCA8E1080
3197 struct changelog_private {
3200 lustre_kernelcomm kuc;
3203 /** Start reading from a changelog
3204 * @param priv Opaque private control structure
3205 * @param flags Start flags (e.g. CHANGELOG_FLAG_BLOCK)
3206 * @param device Report changes recorded on this MDT
3207 * @param startrec Report changes beginning with this record number
3208 * (just call llapi_changelog_fini when done; don't need an endrec)
3210 int llapi_changelog_start(void **priv, int flags, const char *device,
3213 struct changelog_private *cp;
3216 /* Set up the receiver control struct */
3217 cp = calloc(1, sizeof(*cp));
3221 cp->magic = CHANGELOG_PRIV_MAGIC;
3224 /* Set up the receiver */
3225 rc = libcfs_ukuc_start(&cp->kuc, 0 /* no group registration */);
3231 /* Tell the kernel to start sending */
3232 rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
3234 /* Only the kernel reference keeps the write side open */
3235 close(cp->kuc.lk_wfd);
3238 /* frees and clears priv */
3239 llapi_changelog_fini(priv);
3250 /** Finish reading from a changelog */
3251 int llapi_changelog_fini(void **priv)
3253 struct changelog_private *cp = (struct changelog_private *)*priv;
3255 if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
3258 libcfs_ukuc_stop(&cp->kuc);
3264 /** Read the next changelog entry
3265 * @param priv Opaque private control structure
3266 * @param rech Changelog record handle; record will be allocated here
3267 * @return 0 valid message received; rec is set
3271 int llapi_changelog_recv(void *priv, struct changelog_rec **rech)
3273 struct changelog_private *cp = (struct changelog_private *)priv;
3274 struct kuc_hdr *kuch;
3277 if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
3281 kuch = malloc(CR_MAXSIZE + sizeof(*kuch));
3286 rc = libcfs_ukuc_msg_get(&cp->kuc, (char *)kuch,
3287 CR_MAXSIZE + sizeof(*kuch),
3288 KUC_TRANSPORT_CHANGELOG);
3292 if ((kuch->kuc_transport != KUC_TRANSPORT_CHANGELOG) ||
3293 ((kuch->kuc_msgtype != CL_RECORD) &&
3294 (kuch->kuc_msgtype != CL_EOF))) {
3295 llapi_err_noerrno(LLAPI_MSG_ERROR,
3296 "Unknown changelog message type %d:%d\n",
3297 kuch->kuc_transport, kuch->kuc_msgtype);
3302 if (kuch->kuc_msgtype == CL_EOF) {
3303 if (cp->flags & CHANGELOG_FLAG_FOLLOW) {
3312 /* Our message is a changelog_rec. Use pointer math to skip
3313 * kuch_hdr and point directly to the message payload.
3315 *rech = (struct changelog_rec *)(kuch + 1);
3325 /** Release the changelog record when done with it. */
3326 int llapi_changelog_free(struct changelog_rec **rech)
3329 /* We allocated memory starting at the kuc_hdr, but passed
3330 * the consumer a pointer to the payload.
3331 * Use pointer math to get back to the header.
3333 struct kuc_hdr *kuch = (struct kuc_hdr *)*rech - 1;
3340 int llapi_changelog_clear(const char *mdtname, const char *idstr,
3346 llapi_err_noerrno(LLAPI_MSG_ERROR,
3347 "can't purge negative records\n");
3351 id = strtol(idstr + strlen(CHANGELOG_USER_PREFIX), NULL, 10);
3352 if ((id == 0) || (strncmp(idstr, CHANGELOG_USER_PREFIX,
3353 strlen(CHANGELOG_USER_PREFIX)) != 0)) {
3354 llapi_err_noerrno(LLAPI_MSG_ERROR,
3355 "expecting id of the form '"
3356 CHANGELOG_USER_PREFIX
3357 "<num>'; got '%s'\n", idstr);
3361 return changelog_ioctl(mdtname, OBD_IOC_CHANGELOG_CLEAR, id, endrec, 0);
3364 int llapi_fid2path(const char *device, const char *fidstr, char *buf,
3365 int buflen, long long *recno, int *linkno)
3368 struct getinfo_fid2path *gf;
3371 while (*fidstr == '[')
3374 sscanf(fidstr, SFID, RFID(&fid));
3375 if (!fid_is_sane(&fid)) {
3376 llapi_err_noerrno(LLAPI_MSG_ERROR,
3377 "bad FID format [%s], should be "DFID"\n",
3378 fidstr, (__u64)1, 2, 0);
3382 gf = malloc(sizeof(*gf) + buflen);
3386 gf->gf_recno = *recno;
3387 gf->gf_linkno = *linkno;
3388 gf->gf_pathlen = buflen;
3390 /* Take path or fsname */
3391 rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
3394 llapi_error(LLAPI_MSG_ERROR, rc, "ioctl err %d", rc);
3396 memcpy(buf, gf->gf_path, gf->gf_pathlen);
3397 *recno = gf->gf_recno;
3398 *linkno = gf->gf_linkno;
3405 static int path2fid_from_lma(const char *path, lustre_fid *fid)
3408 struct lustre_mdt_attrs *lma;
3411 rc = lgetxattr(path, XATTR_NAME_LMA, buf, sizeof(buf));
3414 lma = (struct lustre_mdt_attrs *)buf;
3415 fid_le_to_cpu(fid, &lma->lma_self_fid);
3419 int llapi_path2fid(const char *path, lustre_fid *fid)
3423 memset(fid, 0, sizeof(*fid));
3424 fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
3426 if (errno == ELOOP) /* symbolic link */
3427 return path2fid_from_lma(path, fid);
3431 rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0;
3432 if (rc == -EINVAL) /* char special device */
3433 rc = path2fid_from_lma(path, fid);
3439 /****** HSM Copytool API ********/
3440 #define CT_PRIV_MAGIC 0xC0BE2001
3441 struct copytool_private {
3444 lustre_kernelcomm kuc;
3448 #include <libcfs/libcfs.h>
3450 /** Register a copytool
3451 * @param[out] priv Opaque private control structure
3452 * @param fsname Lustre filesystem
3453 * @param flags Open flags, currently unused (e.g. O_NONBLOCK)
3454 * @param archive_count
3455 * @param archives Which archive numbers this copytool is responsible for
3457 int llapi_copytool_start(void **priv, char *fsname, int flags,
3458 int archive_count, int *archives)
3460 struct copytool_private *ct;
3463 if (archive_count > 0 && archives == NULL) {
3464 llapi_err_noerrno(LLAPI_MSG_ERROR,
3465 "NULL archive numbers");
3469 ct = calloc(1, sizeof(*ct));
3473 ct->fsname = malloc(strlen(fsname) + 1);
3474 if (ct->fsname == NULL) {
3478 strcpy(ct->fsname, fsname);
3479 ct->magic = CT_PRIV_MAGIC;
3481 for (rc = 0; rc < archive_count; rc++) {
3482 if (archives[rc] > sizeof(ct->archives)) {
3483 llapi_err_noerrno(LLAPI_MSG_ERROR,
3484 "Maximum of %d archives supported",
3485 sizeof(ct->archives));
3488 ct->archives |= 1 << archives[rc];
3490 /* special case: if no archives specified, default to archive #0. */
3491 if (ct->archives == 0)
3494 rc = libcfs_ukuc_start(&ct->kuc, KUC_GRP_HSM);
3498 /* Storing archive(s) in lk_data; see mdc_ioc_hsm_ct_start */
3499 ct->kuc.lk_data = ct->archives;
3500 rc = root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL,
3502 /* Only the kernel reference keeps the write side open */
3503 close(ct->kuc.lk_wfd);
3518 /** Deregister a copytool */
3519 int llapi_copytool_fini(void **priv)
3521 struct copytool_private *ct = (struct copytool_private *)*priv;
3523 if (!ct || (ct->magic != CT_PRIV_MAGIC))
3526 /* Tell the kernel to stop sending us messages */
3527 ct->kuc.lk_flags = LK_FLG_STOP;
3528 root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL, 0);
3530 /* Shut down the kernelcomms */
3531 libcfs_ukuc_stop(&ct->kuc);
3539 /** Wait for the next hsm_action_list
3540 * @param priv Opaque private control structure
3541 * @param halh Action list handle, will be allocated here
3542 * @param msgsize Number of bytes in the message, will be set here
3543 * @return 0 valid message received; halh and msgsize are set
3546 int llapi_copytool_recv(void *priv, struct hsm_action_list **halh, int *msgsize)
3548 struct copytool_private *ct = (struct copytool_private *)priv;
3549 struct kuc_hdr *kuch;
3550 struct hsm_action_list *hal;
3553 if (!ct || (ct->magic != CT_PRIV_MAGIC))
3555 if (halh == NULL || msgsize == NULL)
3558 kuch = malloc(HAL_MAXSIZE + sizeof(*kuch));
3562 rc = libcfs_ukuc_msg_get(&ct->kuc, (char *)kuch,
3563 HAL_MAXSIZE + sizeof(*kuch),
3568 /* Handle generic messages */
3569 if (kuch->kuc_transport == KUC_TRANSPORT_GENERIC &&
3570 kuch->kuc_msgtype == KUC_MSG_SHUTDOWN) {
3575 if (kuch->kuc_transport != KUC_TRANSPORT_HSM ||
3576 kuch->kuc_msgtype != HMT_ACTION_LIST) {
3577 llapi_err_noerrno(LLAPI_MSG_ERROR,
3578 "Unknown HSM message type %d:%d\n",
3579 kuch->kuc_transport, kuch->kuc_msgtype);
3584 /* Our message is a hsm_action_list. Use pointer math to skip
3585 * kuch_hdr and point directly to the message payload.
3587 hal = (struct hsm_action_list *)(kuch + 1);
3589 /* Check that we have registered for this archive # */
3590 if (((1 << hal->hal_archive_num) & ct->archives) == 0) {
3591 llapi_err_noerrno(LLAPI_MSG_INFO,
3592 "Ignoring request for archive #%d (bitmask %#x)\n",
3593 hal->hal_archive_num, ct->archives);
3599 *msgsize = kuch->kuc_msglen - sizeof(*kuch);
3609 /** Release the action list when done with it. */
3610 int llapi_copytool_free(struct hsm_action_list **hal)
3612 /* Reuse the llapi_changelog_free function */
3613 return llapi_changelog_free((struct changelog_rec **)hal);
3616 int llapi_get_connect_flags(const char *mnt, __u64 *flags)
3621 root = opendir(mnt);
3624 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
3628 rc = ioctl(dirfd(root), LL_IOC_GET_CONNECT_FLAGS, flags);
3631 llapi_error(LLAPI_MSG_ERROR, rc,
3632 "ioctl on %s for getting connect flags failed", mnt);
3638 int llapi_get_version(char *buffer, int buffer_size,
3643 struct obd_ioctl_data *data = (struct obd_ioctl_data *)buffer;
3645 fd = open(OBD_DEV_PATH, O_RDONLY);
3649 memset(buffer, 0, buffer_size);
3650 data->ioc_version = OBD_IOCTL_VERSION;
3651 data->ioc_inllen1 = buffer_size - cfs_size_round(sizeof(*data));
3652 data->ioc_inlbuf1 = buffer + cfs_size_round(sizeof(*data));
3653 data->ioc_len = obd_ioctl_packlen(data);
3655 rc = ioctl(fd, OBD_GET_VERSION, buffer);
3662 *version = data->ioc_bulk;