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 /* return the first file matching this pattern */
275 static int first_match(char *pattern, char *buffer)
279 if (glob(pattern, GLOB_BRACE, NULL, &glob_info))
282 if (glob_info.gl_pathc < 1) {
283 globfree(&glob_info);
287 strcpy(buffer, glob_info.gl_pathv[0]);
289 globfree(&glob_info);
293 static int find_target_obdpath(char *fsname, char *path)
296 char pattern[PATH_MAX + 1];
299 snprintf(pattern, PATH_MAX,
300 "/proc/fs/lustre/lov/%s-*/target_obd",
302 rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
303 if (rc == GLOB_NOMATCH)
308 strcpy(path, glob_info.gl_pathv[0]);
309 globfree(&glob_info);
313 static int find_poolpath(char *fsname, char *poolname, char *poolpath)
316 char pattern[PATH_MAX + 1];
319 snprintf(pattern, PATH_MAX,
320 "/proc/fs/lustre/lov/%s-*/pools/%s",
322 rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
323 /* If no pools, make sure the lov is available */
324 if ((rc == GLOB_NOMATCH) &&
325 (find_target_obdpath(fsname, poolpath) == -ENODEV))
330 strcpy(poolpath, glob_info.gl_pathv[0]);
331 globfree(&glob_info);
336 * return a parameter string for a specific device type or mountpoint
338 * \param param_path the path to the file containing parameter data
339 * \param result buffer for parameter value string
340 * \param result_size size of buffer for return value
342 * The \param param_path is appended to /proc/{fs,sys}/{lnet,lustre} to
343 * complete the absolute path to the file containing the parameter data
344 * the user is requesting. If that file exist then the data is read from
345 * the file and placed into the \param result buffer that is passed by
346 * the user. Data is only copied up to the \param result_size to prevent
347 * overflow of the array.
349 * Return 0 for success, with a NUL-terminated string in \param result.
350 * Return -ve value for error.
352 static int get_param(const char *param_path, char *result,
353 unsigned int result_size)
355 char file[PATH_MAX + 1], pattern[PATH_MAX + 1], buf[result_size];
359 snprintf(pattern, PATH_MAX, "/proc/{fs,sys}/{lnet,lustre}/%s",
361 rc = first_match(pattern, file);
365 fp = fopen(file, "r");
367 while (fgets(buf, result_size, fp) != NULL)
376 #define DEVICES_LIST "/proc/fs/lustre/devices"
379 * return a parameter string for a specific device type or mountpoint
381 * \param fsname Lustre filesystem name (optional)
382 * \param file_path path to file in filesystem (optional, if fsname unset)
383 * \param obd_type Lustre OBD device type
384 * \param param_name parameter name to fetch
385 * \param value return buffer for parameter value string
386 * \param val_len size of buffer for return value
388 * If fsname is specified then the parameter will be from that filesystem
389 * (if it exists). If file_path is given and it is in a mounted Lustre
390 * filesystem, then the parameter will be otherwise the value may be
391 * from any mounted filesystem (if there is more than one).
393 * If "obd_type" matches a Lustre device then the first matching device
394 * (as with "lctl dl", constrained by \param fsname or \param mount_path)
395 * will be used to provide the return value, otherwise the first such
396 * device found will be used.
398 * Return 0 for success, with a NUL-terminated string in \param buffer.
399 * Return -ve value for error.
401 static int get_param_obdvar(const char *fsname, const char *file_path,
402 const char *obd_type, const char *param_name,
403 char *value, unsigned int val_len)
405 char devices[PATH_MAX + 1], dev[PATH_MAX + 1] = "*", fs[PATH_MAX + 1];
406 FILE *fp = fopen(DEVICES_LIST, "r");
409 if (!fsname && file_path) {
410 rc = llapi_search_fsname(file_path, fs);
412 llapi_error(LLAPI_MSG_ERROR, rc,
413 "'%s' is not on a Lustre filesystem",
423 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening "DEVICES_LIST);
427 while (fgets(devices, sizeof(devices), fp) != NULL) {
428 char *bufp = devices, *tmp;
430 while (bufp[0] == ' ')
433 tmp = strstr(bufp, obd_type);
435 tmp += strlen(obd_type) + 1;
439 tmp = strchr(dev, ' ');
445 if (dev[0] == '*' && strlen(fs))
446 snprintf(dev, PATH_MAX, "%s-*", fs);
447 snprintf(devices, PATH_MAX, "%s/%s/%s", obd_type, dev, param_name);
449 return get_param(devices, value, val_len);
452 static int get_mds_md_size(char *path)
454 int lumlen = lov_mds_md_size(LOV_MAX_STRIPE_COUNT, LOV_MAGIC_V3);
457 /* Now get the maxea from llite proc */
458 if (!get_param_obdvar(NULL, path, "llite", "max_easize",
465 * if pool is NULL, search ostname in target_obd
466 * if pool is not NULL:
467 * if pool not found returns errno < 0
468 * if ostname is NULL, returns 1 if pool is not empty and 0 if pool empty
469 * if ostname is not NULL, returns 1 if OST is in pool and 0 if not
471 int llapi_search_ost(char *fsname, char *poolname, char *ostname)
474 char buffer[PATH_MAX + 1];
478 len = strlen(ostname);
480 if (poolname == NULL)
481 rc = find_target_obdpath(fsname, buffer);
483 rc = find_poolpath(fsname, poolname, buffer);
487 fd = fopen(buffer, "r");
491 while (fgets(buffer, sizeof(buffer), fd) != NULL) {
492 if (poolname == NULL) {
494 /* Search for an ostname in the list of OSTs
495 Line format is IDX: fsname-OSTxxxx_UUID STATUS */
496 ptr = strchr(buffer, ' ');
498 (strncmp(ptr + 1, ostname, len) == 0)) {
503 /* Search for an ostname in a pool,
504 (or an existing non-empty pool if no ostname) */
505 if ((ostname == NULL) ||
506 (strncmp(buffer, ostname, len) == 0)) {
516 int llapi_file_open_pool(const char *name, int flags, int mode,
517 unsigned long long stripe_size, int stripe_offset,
518 int stripe_count, int stripe_pattern, char *pool_name)
520 struct lov_user_md_v3 lum = { 0 };
524 /* Make sure we have a good pool */
525 if (pool_name != NULL) {
526 char fsname[MAX_OBD_NAME + 1], *ptr;
528 rc = llapi_search_fsname(name, fsname);
530 llapi_error(LLAPI_MSG_ERROR, rc,
531 "'%s' is not on a Lustre filesystem",
536 /* in case user gives the full pool name <fsname>.<poolname>,
537 * strip the fsname */
538 ptr = strchr(pool_name, '.');
541 if (strcmp(pool_name, fsname) != 0) {
543 llapi_err_noerrno(LLAPI_MSG_ERROR,
544 "Pool '%s' is not on filesystem '%s'",
551 /* Make sure the pool exists and is non-empty */
552 rc = llapi_search_ost(fsname, pool_name, NULL);
554 llapi_err_noerrno(LLAPI_MSG_ERROR,
555 "pool '%s.%s' %s", fsname, pool_name,
556 rc == 0 ? "has no OSTs" : "does not exist");
561 fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
562 if (fd < 0 && errno == EISDIR) {
563 fd = open(name, O_DIRECTORY | O_RDONLY);
569 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
573 rc = llapi_stripe_limit_check(stripe_size, stripe_offset, stripe_count,
578 /* Initialize IOCTL striping pattern structure */
579 lum.lmm_magic = LOV_USER_MAGIC_V3;
580 lum.lmm_pattern = stripe_pattern;
581 lum.lmm_stripe_size = stripe_size;
582 lum.lmm_stripe_count = stripe_count;
583 lum.lmm_stripe_offset = stripe_offset;
584 if (pool_name != NULL) {
585 strncpy(lum.lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
587 /* If no pool is specified at all, use V1 request */
588 lum.lmm_magic = LOV_USER_MAGIC_V1;
591 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, &lum)) {
592 char *errmsg = "stripe already set";
594 if (errno != EEXIST && errno != EALREADY)
595 errmsg = strerror(errno);
597 llapi_err_noerrno(LLAPI_MSG_ERROR,
598 "error on ioctl "LPX64" for '%s' (%d): %s",
599 (__u64)LL_IOC_LOV_SETSTRIPE, name, fd,errmsg);
610 int llapi_file_open(const char *name, int flags, int mode,
611 unsigned long long stripe_size, int stripe_offset,
612 int stripe_count, int stripe_pattern)
614 return llapi_file_open_pool(name, flags, mode, stripe_size,
615 stripe_offset, stripe_count,
616 stripe_pattern, NULL);
619 int llapi_file_create(const char *name, unsigned long long stripe_size,
620 int stripe_offset, int stripe_count, int stripe_pattern)
624 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
625 stripe_offset, stripe_count, stripe_pattern,
634 int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
635 int stripe_offset, int stripe_count,
636 int stripe_pattern, char *pool_name)
640 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
641 stripe_offset, stripe_count, stripe_pattern,
651 * Find the fsname, the full path, and/or an open fd.
652 * Either the fsname or path must not be NULL
654 #define WANT_PATH 0x1
655 #define WANT_FSNAME 0x2
657 #define WANT_INDEX 0x8
658 #define WANT_ERROR 0x10
659 static int get_root_path(int want, char *fsname, int *outfd, char *path,
663 char buf[PATH_MAX], mntdir[PATH_MAX];
666 int idx = 0, len = 0, mntlen, fd;
669 /* get the mount point */
670 fp = setmntent(MOUNTED, "r");
673 llapi_error(LLAPI_MSG_ERROR, rc,
674 "setmntent(%s) failed", MOUNTED);
678 if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
681 if (!llapi_is_lustre_mnt(&mnt))
684 if ((want & WANT_INDEX) && (idx++ != index))
687 mntlen = strlen(mnt.mnt_dir);
688 ptr = strrchr(mnt.mnt_fsname, '/');
695 /* Check the fsname for a match, if given */
696 if (!(want & WANT_FSNAME) && fsname != NULL &&
697 (strlen(fsname) > 0) && (strcmp(ptr, fsname) != 0))
700 /* If the path isn't set return the first one we find */
701 if (path == NULL || strlen(path) == 0) {
702 strcpy(mntdir, mnt.mnt_dir);
703 if ((want & WANT_FSNAME) && fsname != NULL)
707 /* Otherwise find the longest matching path */
708 } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
709 (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
710 strcpy(mntdir, mnt.mnt_dir);
712 if ((want & WANT_FSNAME) && fsname != NULL)
721 if ((want & WANT_PATH) && path != NULL)
722 strcpy(path, mntdir);
723 if (want & WANT_FD) {
724 fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
727 llapi_error(LLAPI_MSG_ERROR, rc,
728 "error opening '%s'", mntdir);
734 } else if (want & WANT_ERROR)
735 llapi_err_noerrno(LLAPI_MSG_ERROR,
736 "can't find fs root for '%s': %d",
737 (want & WANT_PATH) ? fsname : path, rc);
742 * search lustre mounts
744 * Calling this function will return to the user the mount point, mntdir, and
745 * the file system name, fsname, if the user passed a buffer to this routine.
747 * The user inputs are pathname and index. If the pathname is supplied then
748 * the value of the index will be ignored. The pathname will return data if
749 * the pathname is located on a lustre mount. Index is used to pick which
750 * mount point you want in the case of multiple mounted lustre file systems.
751 * See function lfs_osts in lfs.c for a example of the index use.
753 int llapi_search_mounts(const char *pathname, int index, char *mntdir,
756 int want = WANT_PATH, idx = -1;
758 if (!pathname || pathname[0] == '\0') {
762 strcpy(mntdir, pathname);
766 return get_root_path(want, fsname, NULL, mntdir, idx);
769 /* Given a path, find the corresponding Lustre fsname */
770 int llapi_search_fsname(const char *pathname, char *fsname)
775 path = realpath(pathname, NULL);
777 char buf[PATH_MAX + 1], *ptr;
780 if (pathname[0] != '/') {
781 /* Need an absolute path, but realpath() only works for
782 * pathnames that actually exist. We go through the
783 * extra hurdle of dirname(getcwd() + pathname) in
784 * case the relative pathname contains ".." in it. */
785 if (getcwd(buf, sizeof(buf) - 1) == NULL)
789 strncat(buf, pathname, sizeof(buf) - strlen(buf));
790 path = realpath(buf, NULL);
792 ptr = strrchr(buf, '/');
796 path = realpath(buf, NULL);
799 llapi_error(LLAPI_MSG_ERROR, rc,
800 "pathname '%s' cannot expand",
806 rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1);
811 int llapi_getname(const char *path, char *buf, size_t size)
813 struct obd_uuid uuid_buf;
814 char *uuid = uuid_buf.uuid;
817 memset(&uuid_buf, 0, sizeof(uuid_buf));
818 rc = llapi_file_get_lov_uuid(path, &uuid_buf);
822 /* We want to turn lustre-clilov-ffff88002738bc00 into
823 * lustre-ffff88002738bc00. */
825 nr = snprintf(buf, size, "%.*s-%s",
826 (int) (strlen(uuid) - 24), uuid,
827 uuid + strlen(uuid) - 16);
837 * find the pool directory path under /proc
838 * (can be also used to test if a fsname is known)
840 static int poolpath(char *fsname, char *pathname, char *pool_pathname)
843 char pattern[PATH_MAX + 1];
844 char buffer[PATH_MAX];
846 if (fsname == NULL) {
847 rc = llapi_search_fsname(pathname, buffer);
851 strcpy(pathname, fsname);
854 snprintf(pattern, PATH_MAX, "/proc/fs/lustre/lov/%s-*/pools", fsname);
855 rc = first_match(pattern, buffer);
859 /* in fsname test mode, pool_pathname is NULL */
860 if (pool_pathname != NULL)
861 strcpy(pool_pathname, buffer);
867 * Get the list of pool members.
868 * \param poolname string of format \<fsname\>.\<poolname\>
869 * \param members caller-allocated array of char*
870 * \param list_size size of the members array
871 * \param buffer caller-allocated buffer for storing OST names
872 * \param buffer_size size of the buffer
874 * \return number of members retrieved for this pool
875 * \retval -error failure
877 int llapi_get_poolmembers(const char *poolname, char **members,
878 int list_size, char *buffer, int buffer_size)
880 char fsname[PATH_MAX + 1];
882 char pathname[PATH_MAX + 1];
883 char path[PATH_MAX + 1];
890 /* name is FSNAME.POOLNAME */
891 if (strlen(poolname) > PATH_MAX)
893 strcpy(fsname, poolname);
894 pool = strchr(fsname, '.');
901 rc = poolpath(fsname, NULL, pathname);
903 llapi_error(LLAPI_MSG_ERROR, rc,
904 "Lustre filesystem '%s' not found",
909 llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
910 sprintf(path, "%s/%s", pathname, pool);
911 fd = fopen(path, "r");
914 llapi_error(LLAPI_MSG_ERROR, rc, "Cannot open %s", path);
919 while (fgets(buf, sizeof(buf), fd) != NULL) {
920 if (nb_entries >= list_size) {
925 tmp = strchr(buf, '\n');
928 if (used + strlen(buf) + 1 > buffer_size) {
933 strcpy(buffer + used, buf);
934 members[nb_entries] = buffer + used;
935 used += strlen(buf) + 1;
945 * Get the list of pools in a filesystem.
946 * \param name filesystem name or path
947 * \param poollist caller-allocated array of char*
948 * \param list_size size of the poollist array
949 * \param buffer caller-allocated buffer for storing pool names
950 * \param buffer_size size of the buffer
952 * \return number of pools retrieved for this filesystem
953 * \retval -error failure
955 int llapi_get_poollist(const char *name, char **poollist, int list_size,
956 char *buffer, int buffer_size)
958 char fsname[PATH_MAX + 1], rname[PATH_MAX + 1], pathname[PATH_MAX + 1];
962 struct dirent *cookie = NULL;
964 unsigned int nb_entries = 0;
965 unsigned int used = 0;
968 /* initilize output array */
969 for (i = 0; i < list_size; i++)
972 /* is name a pathname ? */
973 ptr = strchr(name, '/');
975 /* only absolute pathname is supported */
979 if (!realpath(name, rname)) {
981 llapi_error(LLAPI_MSG_ERROR, rc, "invalid path '%s'",
986 rc = poolpath(NULL, rname, pathname);
988 llapi_error(LLAPI_MSG_ERROR, rc, "'%s' is not"
989 " a Lustre filesystem", name);
992 strcpy(fsname, rname);
995 strcpy(fsname, name);
996 rc = poolpath(fsname, NULL, pathname);
999 llapi_error(LLAPI_MSG_ERROR, rc,
1000 "Lustre filesystem '%s' not found", name);
1004 llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
1005 dir = opendir(pathname);
1008 llapi_error(LLAPI_MSG_ERROR, rc,
1009 "Could not open pool list for '%s'",
1015 rc = readdir_r(dir, &pool, &cookie);
1019 llapi_error(LLAPI_MSG_ERROR, rc,
1020 "Error reading pool list for '%s'", name);
1022 } else if ((rc == 0) && (cookie == NULL)) {
1023 /* end of directory */
1027 /* ignore . and .. */
1028 if (!strcmp(pool.d_name, ".") || !strcmp(pool.d_name, ".."))
1031 /* check output bounds */
1032 if (nb_entries >= list_size)
1035 /* +2 for '.' and final '\0' */
1036 if (used + strlen(pool.d_name) + strlen(fsname) + 2
1040 sprintf(buffer + used, "%s.%s", fsname, pool.d_name);
1041 poollist[nb_entries] = buffer + used;
1042 used += strlen(pool.d_name) + strlen(fsname) + 2;
1050 /* wrapper for lfs.c and obd.c */
1051 int llapi_poollist(const char *name)
1053 /* list of pool names (assume that pool count is smaller
1055 char **list, *buffer = NULL, *path = NULL, *fsname = NULL;
1056 int obdcount, bufsize, rc, nb, i;
1057 char *poolname = NULL, *tmp = NULL, data[16];
1059 if (name[0] != '/') {
1060 fsname = strdup(name);
1061 poolname = strchr(fsname, '.');
1065 path = (char *) name;
1068 rc = get_param_obdvar(fsname, path, "lov", "numobd",
1069 data, sizeof(data));
1072 obdcount = atoi(data);
1074 /* Allocate space for each fsname-OST0000_UUID, 1 per OST,
1075 * and also an array to store the pointers for all that
1076 * allocated space. */
1078 bufsize = sizeof(struct obd_uuid) * obdcount;
1079 buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
1080 if (buffer == NULL) {
1084 list = (char **) (buffer + bufsize);
1087 /* name is a path or fsname */
1088 nb = llapi_get_poollist(name, list, obdcount,
1091 /* name is a pool name (<fsname>.<poolname>) */
1092 nb = llapi_get_poolmembers(name, list, obdcount,
1096 if (nb == -EOVERFLOW) {
1099 goto retry_get_pools;
1102 for (i = 0; i < nb; i++)
1103 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
1104 rc = (nb < 0 ? nb : 0);
1113 typedef int (semantic_func_t)(char *path, DIR *parent, DIR *d,
1114 void *data, cfs_dirent_t *de);
1116 #define OBD_NOT_FOUND (-1)
1118 static int common_param_init(struct find_param *param, char *path)
1120 param->lumlen = get_mds_md_size(path);
1121 param->lmd = malloc(sizeof(lstat_t) + param->lumlen);
1122 if (param->lmd == NULL) {
1123 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1124 "error: allocation of %d bytes for ioctl",
1125 sizeof(lstat_t) + param->lumlen);
1129 param->got_uuids = 0;
1130 param->obdindexes = NULL;
1131 param->obdindex = OBD_NOT_FOUND;
1135 static void find_param_fini(struct find_param *param)
1137 if (param->obdindexes)
1138 free(param->obdindexes);
1144 static int cb_common_fini(char *path, DIR *parent, DIR *d, void *data,
1147 struct find_param *param = (struct find_param *)data;
1152 /* set errno upon failure */
1153 static DIR *opendir_parent(char *path)
1159 fname = strrchr(path, '/');
1161 return opendir(".");
1165 parent = opendir(path);
1170 static int get_lmd_info(char *path, DIR *parent, DIR *dir,
1171 struct lov_user_mds_data *lmd, int lumlen)
1173 lstat_t *st = &lmd->lmd_st;
1176 if (parent == NULL && dir == NULL)
1180 ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO, (void *)lmd);
1181 } else if (parent) {
1182 char *fname = strrchr(path, '/');
1184 fname = (fname == NULL ? path : fname + 1);
1185 /* retrieve needed file info */
1186 strncpy((char *)lmd, fname, lumlen);
1187 ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
1193 if (errno == ENOTTY) {
1194 /* ioctl is not supported, it is not a lustre fs.
1195 * Do the regular lstat(2) instead. */
1196 ret = lstat_f(path, st);
1199 llapi_error(LLAPI_MSG_ERROR, ret,
1200 "error: %s: lstat failed for %s",
1203 } else if (errno == ENOENT) {
1205 llapi_error(LLAPI_MSG_WARN, ret,
1206 "warning: %s: %s does not exist",
1208 } else if (errno != EISDIR) {
1210 llapi_error(LLAPI_MSG_ERROR, ret,
1211 "%s ioctl failed for %s.",
1212 dir ? "LL_IOC_MDC_GETINFO" :
1213 "IOC_MDC_GETFILEINFO", path);
1216 llapi_error(LLAPI_MSG_ERROR, ret,
1217 "error: %s: IOC_MDC_GETFILEINFO failed for %s",
1224 int llapi_mds_getfileinfo(char *path, DIR *parent,
1225 struct lov_user_mds_data *lmd)
1227 int lumlen = get_mds_md_size(path);
1229 return get_lmd_info(path, parent, NULL, lmd, lumlen);
1232 static int llapi_semantic_traverse(char *path, int size, DIR *parent,
1233 semantic_func_t sem_init,
1234 semantic_func_t sem_fini, void *data,
1245 if (!d && errno != ENOTDIR) {
1247 llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
1250 } else if (!d && !parent) {
1251 /* ENOTDIR. Open the parent dir. */
1252 p = opendir_parent(path);
1254 GOTO(out, ret = -errno);
1257 if (sem_init && (ret = sem_init(path, parent ?: p, d, data, de)))
1263 while ((dent = readdir64(d)) != NULL) {
1264 ((struct find_param *)data)->have_fileinfo = 0;
1266 if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
1269 /* Don't traverse .lustre directory */
1270 if (!(strcmp(dent->d_name, dot_lustre_name)))
1274 if ((len + dent->d_reclen + 2) > size) {
1275 llapi_err_noerrno(LLAPI_MSG_ERROR,
1276 "error: %s: string buffer is too small",
1281 strcat(path, dent->d_name);
1283 if (dent->d_type == DT_UNKNOWN) {
1284 lstat_t *st = &((struct find_param *)data)->lmd->lmd_st;
1286 ret = llapi_mds_getfileinfo(path, d,
1287 ((struct find_param *)data)->lmd);
1289 ((struct find_param *)data)->have_fileinfo = 1;
1291 llapi_filetype_dir_table[st->st_mode &
1298 switch (dent->d_type) {
1300 llapi_err_noerrno(LLAPI_MSG_ERROR,
1301 "error: %s: '%s' is UNKNOWN type %d",
1302 __func__, dent->d_name, dent->d_type);
1305 ret = llapi_semantic_traverse(path, size, d, sem_init,
1306 sem_fini, data, dent);
1313 ret = sem_init(path, d, NULL, data, dent);
1317 if (sem_fini && ret == 0)
1318 sem_fini(path, d, NULL, data, dent);
1326 sem_fini(path, parent, d, data, de);
1335 static int param_callback(char *path, semantic_func_t sem_init,
1336 semantic_func_t sem_fini, struct find_param *param)
1338 int ret, len = strlen(path);
1341 if (len > PATH_MAX) {
1343 llapi_error(LLAPI_MSG_ERROR, ret,
1344 "Path name '%s' is too long", path);
1348 buf = (char *)malloc(PATH_MAX + 1);
1352 strncpy(buf, path, PATH_MAX + 1);
1353 ret = common_param_init(param, buf);
1358 ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
1359 sem_fini, param, NULL);
1361 find_param_fini(param);
1363 return ret < 0 ? ret : 0;
1366 int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
1368 int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
1371 llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lov name.");
1376 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
1380 fd = open(path, O_RDONLY);
1383 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
1387 rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
1394 * If uuidp is NULL, return the number of available obd uuids.
1395 * If uuidp is non-NULL, then it will return the uuids of the obds. If
1396 * there are more OSTs then allocated to uuidp, then an error is returned with
1397 * the ost_count set to number of available obd uuids.
1399 int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
1401 struct obd_uuid lov_name;
1404 int rc = 0, index = 0;
1406 /* Get the lov name */
1407 rc = llapi_file_fget_lov_uuid(fd, &lov_name);
1411 /* Now get the ost uuids from /proc */
1412 snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
1414 fp = fopen(buf, "r");
1417 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'", buf);
1421 while (fgets(buf, sizeof(buf), fp) != NULL) {
1422 if (uuidp && (index < *ost_count)) {
1423 if (sscanf(buf, "%d: %s", &index, uuidp[index].uuid) <2)
1431 if (uuidp && (index > *ost_count))
1438 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
1443 root = opendir(mnt);
1446 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
1451 rc = ioctl(dirfd(root), LL_IOC_GETOBDCOUNT, count);
1459 /* Check if user specified value matches a real uuid. Ignore _UUID,
1460 * -osc-4ba41334, other trailing gunk in comparison.
1461 * @param real_uuid ends in "_UUID"
1462 * @param search_uuid may or may not end in "_UUID"
1464 int llapi_uuid_match(char *real_uuid, char *search_uuid)
1466 int cmplen = strlen(real_uuid);
1467 int searchlen = strlen(search_uuid);
1469 if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
1471 if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
1474 /* The UUIDs may legitimately be different lengths, if
1475 * the system was upgraded from an older version. */
1476 if (cmplen != searchlen)
1479 return (strncmp(search_uuid, real_uuid, cmplen) == 0);
1482 /* Here, param->obduuid points to a single obduuid, the index of which is
1483 * returned in param->obdindex */
1484 static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
1486 struct obd_uuid lov_uuid;
1487 char uuid[sizeof(struct obd_uuid)];
1492 if (param->got_uuids)
1495 /* Get the lov name */
1496 rc = llapi_file_fget_lov_uuid(dirfd(dir), &lov_uuid);
1498 if (rc != -ENOTTY) {
1499 llapi_error(LLAPI_MSG_ERROR, rc,
1500 "error: can't get lov name: %s", dname);
1507 param->got_uuids = 1;
1509 /* Now get the ost uuids from /proc */
1510 snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
1512 fp = fopen(buf, "r");
1515 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'", buf);
1519 if (!param->obduuid && !param->quiet && !param->obds_printed)
1520 llapi_printf(LLAPI_MSG_NORMAL, "OBDS:\n");
1522 while (fgets(buf, sizeof(buf), fp) != NULL) {
1523 if (sscanf(buf, "%d: %s", &index, uuid) < 2)
1526 if (param->obduuid) {
1527 if (llapi_uuid_match(uuid, param->obduuid->uuid)) {
1528 param->obdindex = index;
1531 } else if (!param->quiet && !param->obds_printed) {
1532 /* Print everything */
1533 llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
1536 param->obds_printed = 1;
1540 if (param->obduuid && (param->obdindex == OBD_NOT_FOUND)) {
1541 llapi_err_noerrno(LLAPI_MSG_ERROR,
1542 "error: %s: unknown obduuid: %s",
1543 __func__, param->obduuid->uuid);
1550 /* In this case, param->obduuid will be an array of obduuids and
1551 * obd index for all these obduuids will be returned in
1552 * param->obdindexes */
1553 static int setup_obd_indexes(DIR *dir, char *path, struct find_param *param)
1555 int ret, obdcount, obd_valid = 0, obdnum, i;
1556 struct obd_uuid *uuids = NULL;
1559 ret = get_param_obdvar(NULL, path, "lov", "numobd",
1564 obdcount = atoi(buf);
1565 uuids = (struct obd_uuid *)malloc(obdcount *
1566 sizeof(struct obd_uuid));
1571 ret = llapi_lov_get_uuids(dirfd(dir), uuids,
1574 struct obd_uuid *uuids_temp;
1576 if (ret == -EOVERFLOW) {
1577 uuids_temp = realloc(uuids, obdcount *
1578 sizeof(struct obd_uuid));
1579 if (uuids_temp != NULL)
1580 goto retry_get_uuids;
1585 llapi_error(LLAPI_MSG_ERROR, ret, "get ost uuid failed");
1589 param->obdindexes = malloc(param->num_obds * sizeof(param->obdindex));
1590 if (param->obdindexes == NULL)
1593 for (obdnum = 0; obdnum < param->num_obds; obdnum++) {
1594 for (i = 0; i < obdcount; i++) {
1595 if (llapi_uuid_match(uuids[i].uuid,
1596 param->obduuid[obdnum].uuid)) {
1597 param->obdindexes[obdnum] = i;
1602 if (i >= obdcount) {
1603 param->obdindexes[obdnum] = OBD_NOT_FOUND;
1604 llapi_err_noerrno(LLAPI_MSG_ERROR,
1605 "error: %s: unknown obduuid: %s",
1607 param->obduuid[obdnum].uuid);
1613 param->obdindex = OBD_NOT_FOUND;
1615 param->obdindex = obd_valid;
1617 param->got_uuids = 1;
1622 int llapi_ostlist(char *path, struct find_param *param)
1627 dir = opendir(path);
1631 ret = setup_obd_uuid(dir, path, param);
1638 * Given a filesystem name, or a pathname of a file on a lustre filesystem,
1639 * tries to determine the path to the filesystem's clilov directory under /proc
1641 * fsname is limited to MTI_NAME_MAXLEN in lustre_idl.h
1642 * The NUL terminator is compensated by the additional "%s" bytes. */
1643 #define LOV_LEN (sizeof("/proc/fs/lustre/lov/%s-clilov-*") + MTI_NAME_MAXLEN)
1644 static int clilovpath(const char *fsname, const char *const pathname,
1648 char pattern[LOV_LEN];
1649 char buffer[PATH_MAX + 1];
1651 if (fsname == NULL) {
1652 rc = llapi_search_fsname(pathname, buffer);
1658 snprintf(pattern, sizeof(pattern), "/proc/fs/lustre/lov/%s-clilov-*",
1661 rc = first_match(pattern, buffer);
1665 strncpy(clilovpath, buffer, sizeof(buffer));
1671 * Given the path to a stripe attribute proc file, tries to open and
1672 * read the attribute and return the value using the attr parameter
1674 static int sattr_read_attr(const char *const fpath,
1679 char line[PATH_MAX + 1];
1682 f = fopen(fpath, "r");
1685 llapi_error(LLAPI_MSG_ERROR, rc, "Cannot open '%s'", fpath);
1689 if (fgets(line, sizeof(line), f) != NULL) {
1692 llapi_error(LLAPI_MSG_ERROR, errno, "Cannot read from '%s'", fpath);
1701 * Tries to determine the default stripe attributes for a given filesystem. The
1702 * filesystem to check should be specified by fsname, or will be determined
1705 static int sattr_get_defaults(const char *const fsname,
1706 const char *const pathname,
1707 unsigned int *scount,
1708 unsigned int *ssize,
1709 unsigned int *soffset)
1712 char dpath[PATH_MAX + 1];
1713 char fpath[PATH_MAX + 1];
1715 rc = clilovpath(fsname, pathname, dpath);
1720 snprintf(fpath, PATH_MAX, "%s/stripecount", dpath);
1721 rc = sattr_read_attr(fpath, scount);
1727 snprintf(fpath, PATH_MAX, "%s/stripesize", dpath);
1728 rc = sattr_read_attr(fpath, ssize);
1734 snprintf(fpath, PATH_MAX, "%s/stripeoffset", dpath);
1735 rc = sattr_read_attr(fpath, soffset);
1744 * Tries to gather the default stripe attributes for a given filesystem. If
1745 * the attributes can be determined, they are cached for easy retreival the
1746 * next time they are needed. Only a single filesystem's attributes are
1749 static int sattr_cache_get_defaults(const char *const fsname,
1750 const char *const pathname,
1751 unsigned int *scount,
1752 unsigned int *ssize,
1753 unsigned int *soffset)
1756 char fsname[PATH_MAX + 1];
1757 unsigned int stripecount;
1758 unsigned int stripesize;
1759 unsigned int stripeoffset;
1765 char fsname_buf[PATH_MAX + 1];
1766 unsigned int tmp[3];
1768 if (fsname == NULL) {
1769 rc = llapi_search_fsname(pathname, fsname_buf);
1773 strncpy(fsname_buf, fsname, PATH_MAX);
1776 if (strncmp(fsname_buf, cache.fsname, PATH_MAX) != 0) {
1778 * Ensure all 3 sattrs (count, size, and offset) are
1779 * successfully retrieved and stored in tmp before writing to
1782 rc = sattr_get_defaults(fsname_buf, NULL, &tmp[0], &tmp[1],
1787 cache.stripecount = tmp[0];
1788 cache.stripesize = tmp[1];
1789 cache.stripeoffset = tmp[2];
1790 strncpy(cache.fsname, fsname_buf, PATH_MAX);
1794 *scount = cache.stripecount;
1796 *ssize = cache.stripesize;
1798 *soffset = cache.stripeoffset;
1803 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
1804 struct lov_user_ost_data_v1 *objects,
1805 int is_dir, int verbose, int depth,
1806 int raw, char *pool_name)
1808 char *prefix = is_dir ? "" : "lmm_";
1809 char nl = is_dir ? ' ' : '\n';
1812 if (is_dir && lum->lmm_object_seq == FID_SEQ_LOV_DEFAULT) {
1813 lum->lmm_object_seq = FID_SEQ_OST_MDT0;
1814 if (verbose & VERBOSE_DETAIL)
1815 llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
1818 if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
1819 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
1821 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
1822 llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic: 0x%08X\n",
1824 llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq: "LPX64"\n",
1825 lum->lmm_object_seq);
1826 llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: "LPX64"\n",
1827 lum->lmm_object_id);
1830 if (verbose & VERBOSE_COUNT) {
1831 if (verbose & ~VERBOSE_COUNT)
1832 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
1835 if (!raw && lum->lmm_stripe_count == 0) {
1836 unsigned int scount;
1837 rc = sattr_cache_get_defaults(NULL, path,
1841 llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
1844 llapi_error(LLAPI_MSG_ERROR, rc,
1845 "Cannot determine default"
1848 llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
1849 lum->lmm_stripe_count ==
1850 (typeof(lum->lmm_stripe_count))(-1)
1851 ? -1 : lum->lmm_stripe_count, nl);
1854 llapi_printf(LLAPI_MSG_NORMAL, "%hd%c",
1855 (__s16)lum->lmm_stripe_count, nl);
1859 if (verbose & VERBOSE_SIZE) {
1860 if (verbose & ~VERBOSE_SIZE)
1861 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
1863 if (is_dir && !raw && lum->lmm_stripe_size == 0) {
1865 rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
1868 llapi_printf(LLAPI_MSG_NORMAL, "%u%c", ssize,
1871 llapi_error(LLAPI_MSG_ERROR, rc,
1872 "Cannot determine default"
1875 llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
1876 lum->lmm_stripe_size, nl);
1880 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
1881 llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_pattern: %x%c",
1882 lum->lmm_pattern, nl);
1885 if ((verbose & VERBOSE_GENERATION) && !is_dir) {
1886 if (verbose & ~VERBOSE_GENERATION)
1887 llapi_printf(LLAPI_MSG_NORMAL, "%slayout_gen: ",
1889 llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
1890 (int)lum->u.lum_layout_gen, nl);
1893 if (verbose & VERBOSE_OFFSET) {
1894 if (verbose & ~VERBOSE_OFFSET)
1895 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
1898 llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
1899 lum->lmm_stripe_offset ==
1900 (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
1901 lum->lmm_stripe_offset, nl);
1903 llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
1904 objects[0].l_ost_idx, nl);
1907 if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
1908 if (verbose & ~VERBOSE_POOL)
1909 llapi_printf(LLAPI_MSG_NORMAL, "%spool: ",
1911 llapi_printf(LLAPI_MSG_NORMAL, "%s%c", pool_name, nl);
1914 if (is_dir && (verbose != VERBOSE_OBJID))
1915 llapi_printf(LLAPI_MSG_NORMAL, "\n");
1918 void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
1919 struct lov_user_ost_data_v1 *objects,
1920 char *path, int is_dir,
1921 int obdindex, int depth, int header, int raw)
1923 int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
1926 for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
1927 if (obdindex == objects[i].l_ost_idx) {
1935 lov_dump_user_lmm_header(lum, path, objects, is_dir, header,
1936 depth, raw, pool_name);
1938 if (!is_dir && (header & VERBOSE_OBJID)) {
1940 llapi_printf(LLAPI_MSG_NORMAL,
1941 "\tobdidx\t\t objid\t\tobjid\t\t group\n");
1943 for (i = 0; i < lum->lmm_stripe_count; i++) {
1944 int idx = objects[i].l_ost_idx;
1945 long long oid = objects[i].l_object_id;
1946 long long gr = objects[i].l_object_seq;
1947 if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
1948 llapi_printf(LLAPI_MSG_NORMAL,
1949 "\t%6u\t%14llu\t%#13llx\t%14llu%s\n",
1951 obdindex == idx ? " *" : "");
1953 llapi_printf(LLAPI_MSG_NORMAL, "\n");
1957 void llapi_lov_dump_user_lmm(struct find_param *param,
1958 char *path, int is_dir)
1960 switch(*(__u32 *)¶m->lmd->lmd_lmm) { /* lum->lmm_magic */
1961 case LOV_USER_MAGIC_V1:
1962 lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, NULL,
1963 param->lmd->lmd_lmm.lmm_objects,
1965 param->obdindex, param->maxdepth,
1966 param->verbose, param->raw);
1968 case LOV_USER_MAGIC_V3: {
1969 char pool_name[LOV_MAXPOOLNAME + 1];
1970 struct lov_user_ost_data_v1 *objects;
1971 struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
1973 strncpy(pool_name, lmmv3->lmm_pool_name, LOV_MAXPOOLNAME);
1974 pool_name[LOV_MAXPOOLNAME] = '\0';
1975 objects = lmmv3->lmm_objects;
1976 lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, pool_name,
1977 objects, path, is_dir,
1978 param->obdindex, param->maxdepth,
1979 param->verbose, param->raw);
1983 llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic: %#x "
1984 "(expecting one of %#x %#x %#x)\n",
1985 *(__u32 *)¶m->lmd->lmd_lmm,
1986 LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3);
1991 int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
1997 fname = strrchr(path, '/');
1999 /* It should be a file (or other non-directory) */
2000 if (fname == NULL) {
2001 dname = (char *)malloc(2);
2005 fname = (char *)path;
2007 dname = (char *)malloc(fname - path + 1);
2010 strncpy(dname, path, fname - path);
2011 dname[fname - path] = '\0';
2015 fd = open(dname, O_RDONLY);
2022 strcpy((char *)lum, fname);
2023 if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
2026 if (close(fd) == -1 && rc == 0)
2033 int llapi_file_lookup(int dirfd, const char *name)
2035 struct obd_ioctl_data data = { 0 };
2040 if (dirfd < 0 || name == NULL)
2043 data.ioc_version = OBD_IOCTL_VERSION;
2044 data.ioc_len = sizeof(data);
2045 data.ioc_inlbuf1 = (char *)name;
2046 data.ioc_inllen1 = strlen(name) + 1;
2048 rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
2050 llapi_error(LLAPI_MSG_ERROR, rc,
2051 "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
2056 rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
2062 /* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
2063 * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
2065 * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
2066 * The table below gives the answers for the specified parameters (value and
2067 * sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
2068 * --------------------------------------
2069 * 1 | file > limit; sign > 0 | -1 / -1 |
2070 * 2 | file = limit; sign > 0 | -1 / -1 |
2071 * 3 | file < limit; sign > 0 | ? / 1 |
2072 * 4 | file > limit; sign = 0 | -1 / -1 |
2073 * 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
2074 * 6 | file < limit; sign = 0 | ? / -1 |
2075 * 7 | file > limit; sign < 0 | 1 / 1 |
2076 * 8 | file = limit; sign < 0 | ? / -1 |
2077 * 9 | file < limit; sign < 0 | ? / -1 |
2078 * --------------------------------------
2079 * Note: 5th actually means that the value is within the interval
2080 * (limit - margin, limit]. */
2081 static int find_value_cmp(unsigned long long file, unsigned long long limit,
2082 int sign, int negopt, unsigned long long margin,
2088 /* Drop the fraction of margin (of days). */
2089 if (file + margin <= limit)
2091 } else if (sign == 0) {
2092 if (file <= limit && file + margin > limit)
2094 else if (file + margin <= limit)
2096 } else if (sign < 0) {
2103 return negopt ? ~ret + 1 : ret;
2106 /* Check if the file time matches all the given criteria (e.g. --atime +/-N).
2107 * Return -1 or 1 if file timestamp does not or does match the given criteria
2108 * correspondingly. Return 0 if the MDS time is being checked and there are
2109 * attributes on OSTs and it is not yet clear if the timespamp matches.
2111 * If 0 is returned, we need to do another RPC to the OSTs to obtain the
2112 * updated timestamps. */
2113 static int find_time_check(lstat_t *st, struct find_param *param, int mds)
2118 /* Check if file is accepted. */
2120 ret = find_value_cmp(st->st_atime, param->atime,
2121 param->asign, param->exclude_atime,
2129 ret = find_value_cmp(st->st_mtime, param->mtime,
2130 param->msign, param->exclude_mtime,
2135 /* If the previous check matches, but this one is not yet clear,
2136 * we should return 0 to do an RPC on OSTs. */
2142 ret = find_value_cmp(st->st_ctime, param->ctime,
2143 param->csign, param->exclude_ctime,
2148 /* If the previous check matches, but this one is not yet clear,
2149 * we should return 0 to do an RPC on OSTs. */
2157 static int cb_find_init(char *path, DIR *parent, DIR *dir,
2158 void *data, cfs_dirent_t *de)
2160 struct find_param *param = (struct find_param *)data;
2161 int decision = 1; /* 1 is accepted; -1 is rejected. */
2162 lstat_t *st = ¶m->lmd->lmd_st;
2164 int checked_type = 0;
2167 LASSERT(parent != NULL || dir != NULL);
2169 if (param->have_fileinfo == 0)
2170 param->lmd->lmd_lmm.lmm_stripe_count = 0;
2172 /* If a regular expression is presented, make the initial decision */
2173 if (param->pattern != NULL) {
2174 char *fname = strrchr(path, '/');
2175 fname = (fname == NULL ? path : fname + 1);
2176 ret = fnmatch(param->pattern, fname, 0);
2177 if ((ret == FNM_NOMATCH && !param->exclude_pattern) ||
2178 (ret == 0 && param->exclude_pattern))
2182 /* See if we can check the file type from the dirent. */
2183 if (param->type && de != NULL && de->d_type != DT_UNKNOWN &&
2184 de->d_type < DT_MAX) {
2186 if (llapi_dir_filetype_table[de->d_type] == param->type) {
2187 if (param->exclude_type)
2190 if (!param->exclude_type)
2198 /* Request MDS for the stat info if some of these parameters need
2199 * to be compared. */
2200 if (param->obduuid || param->check_uid || param->check_gid ||
2201 param->check_pool || param->atime || param->ctime ||
2202 param->mtime || param->check_size)
2204 if (param->type && checked_type == 0)
2207 if (param->have_fileinfo == 0 && decision == 0) {
2208 ret = get_lmd_info(path, parent, dir, param->lmd,
2219 if (param->type && !checked_type) {
2220 if ((st->st_mode & S_IFMT) == param->type) {
2221 if (param->exclude_type)
2224 if (!param->exclude_type)
2230 if (param->obduuid) {
2231 if (lustre_fs && param->got_uuids &&
2232 param->st_dev != st->st_dev) {
2233 /* A lustre/lustre mount point is crossed. */
2234 param->got_uuids = 0;
2235 param->obds_printed = 0;
2236 param->obdindex = OBD_NOT_FOUND;
2239 if (lustre_fs && !param->got_uuids) {
2240 ret = setup_obd_indexes(dir ? dir : parent, path,
2245 param->st_dev = st->st_dev;
2246 } else if (!lustre_fs && param->got_uuids) {
2247 /* A lustre/non-lustre mount point is crossed. */
2248 param->got_uuids = 0;
2249 param->obdindex = OBD_NOT_FOUND;
2253 /* If an OBD UUID is specified but no one matches, skip this file. */
2254 if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
2257 /* If a OST UUID is given, and some OST matches, check it here. */
2258 if (param->obdindex != OBD_NOT_FOUND) {
2259 if (!S_ISREG(st->st_mode))
2262 /* Only those files should be accepted, which have a
2263 * stripe on the specified OST. */
2264 if (!param->lmd->lmd_lmm.lmm_stripe_count) {
2268 struct lov_user_ost_data_v1 *lmm_objects;
2270 if (param->lmd->lmd_lmm.lmm_magic ==
2271 LOV_USER_MAGIC_V3) {
2272 struct lov_user_md_v3 *lmmv3 =
2273 (void *)¶m->lmd->lmd_lmm;
2275 lmm_objects = lmmv3->lmm_objects;
2277 lmm_objects = param->lmd->lmd_lmm.lmm_objects;
2281 i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
2282 for (j = 0; j < param->num_obds; j++) {
2283 if (param->obdindexes[j] ==
2284 lmm_objects[i].l_ost_idx) {
2285 if (param->exclude_obd)
2290 /* If an OBD matches, just break */
2291 if (j != param->num_obds)
2295 if (i == param->lmd->lmd_lmm.lmm_stripe_count) {
2296 if (!param->exclude_obd)
2302 if (param->check_uid) {
2303 if (st->st_uid == param->uid) {
2304 if (param->exclude_uid)
2307 if (!param->exclude_uid)
2312 if (param->check_gid) {
2313 if (st->st_gid == param->gid) {
2314 if (param->exclude_gid)
2317 if (!param->exclude_gid)
2322 if (param->check_pool) {
2323 struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
2325 /* empty requested pool is taken as no pool search => V1 */
2326 if (((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) &&
2327 (param->poolname[0] == '\0')) ||
2328 ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
2329 (strncmp(lmmv3->lmm_pool_name,
2330 param->poolname, LOV_MAXPOOLNAME) == 0)) ||
2331 ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
2332 (strcmp(param->poolname, "*") == 0))) {
2333 if (param->exclude_pool)
2336 if (!param->exclude_pool)
2341 /* Check the time on mds. */
2343 if (param->atime || param->ctime || param->mtime) {
2346 for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
2347 param->lmd->lmd_lmm.lmm_stripe_count)
2349 decision = find_time_check(st, param, for_mds);
2354 /* If file still fits the request, ask ost for updated info.
2355 The regular stat is almost of the same speed as some new
2356 'glimpse-size-ioctl'. */
2358 if (param->check_size && S_ISREG(st->st_mode) &&
2359 param->lmd->lmd_lmm.lmm_stripe_count)
2363 /* For regular files with the stripe the decision may have not
2364 * been taken yet if *time or size is to be checked. */
2365 LASSERT(S_ISREG(st->st_mode) &&
2366 param->lmd->lmd_lmm.lmm_stripe_count);
2368 if (param->obdindex != OBD_NOT_FOUND) {
2369 /* Check whether the obd is active or not, if it is
2370 * not active, just print the object affected by this
2373 struct obd_statfs stat_buf;
2374 struct obd_uuid uuid_buf;
2376 memset(&stat_buf, 0, sizeof(struct obd_statfs));
2377 memset(&uuid_buf, 0, sizeof(struct obd_uuid));
2378 ret = llapi_obd_statfs(path, LL_STATFS_LOV,
2379 param->obdindex, &stat_buf,
2382 llapi_printf(LLAPI_MSG_NORMAL,
2383 "obd_uuid: %s failed %s ",
2384 param->obduuid->uuid,
2390 ret = ioctl(dirfd(dir), IOC_LOV_GETINFO,
2391 (void *)param->lmd);
2392 } else if (parent) {
2393 ret = ioctl(dirfd(parent), IOC_LOV_GETINFO,
2394 (void *)param->lmd);
2398 if (errno == ENOENT) {
2399 llapi_error(LLAPI_MSG_ERROR, -ENOENT,
2400 "warning: %s: %s does not exist",
2405 llapi_error(LLAPI_MSG_ERROR, ret,
2406 "%s: IOC_LOV_GETINFO on %s failed",
2412 /* Check the time on osc. */
2413 decision = find_time_check(st, param, 0);
2420 if (param->check_size)
2421 decision = find_value_cmp(st->st_size, param->size,
2422 param->size_sign, param->exclude_size,
2423 param->size_units, 0);
2425 if (decision != -1) {
2426 llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
2428 llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
2430 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2434 /* Do not get down anymore? */
2435 if (param->depth == param->maxdepth)
2442 int llapi_find(char *path, struct find_param *param)
2444 return param_callback(path, cb_find_init, cb_common_fini, param);
2448 * Get MDT number that the file/directory inode referenced
2449 * by the open fd resides on.
2450 * Return 0 and mdtidx on success, or -ve errno.
2452 int llapi_file_fget_mdtidx(int fd, int *mdtidx)
2454 if (ioctl(fd, LL_IOC_GET_MDTIDX, &mdtidx) < 0)
2459 static int cb_get_mdt_index(char *path, DIR *parent, DIR *d, void *data,
2462 struct find_param *param = (struct find_param *)data;
2466 LASSERT(parent != NULL || d != NULL);
2469 ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
2470 } else if (parent) {
2473 fd = open(path, O_RDONLY);
2475 ret = llapi_file_fget_mdtidx(fd, &mdtidx);
2483 if (ret == -ENODATA) {
2484 if (!param->obduuid)
2485 llapi_printf(LLAPI_MSG_NORMAL,
2486 "%s has no stripe info\n", path);
2488 } else if (ret == -ENOENT) {
2489 llapi_error(LLAPI_MSG_WARN, ret,
2490 "warning: %s: %s does not exist",
2493 } else if (ret == -ENOTTY) {
2494 llapi_error(LLAPI_MSG_ERROR, ret,
2495 "%s: '%s' not on a Lustre fs?",
2498 llapi_error(LLAPI_MSG_ERROR, ret,
2499 "error: %s: LL_IOC_GET_MDTIDX failed for %s",
2506 llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
2508 llapi_printf(LLAPI_MSG_NORMAL, "%s MDT index: %d\n",
2512 /* Do not get down anymore? */
2513 if (param->depth == param->maxdepth)
2520 static int cb_getstripe(char *path, DIR *parent, DIR *d, void *data,
2523 struct find_param *param = (struct find_param *)data;
2526 LASSERT(parent != NULL || d != NULL);
2528 if (param->obduuid) {
2530 ret = setup_obd_uuid(d ? d : parent, path, param);
2536 ret = ioctl(dirfd(d), LL_IOC_LOV_GETSTRIPE,
2537 (void *)¶m->lmd->lmd_lmm);
2538 } else if (parent) {
2539 char *fname = strrchr(path, '/');
2540 fname = (fname == NULL ? path : fname + 1);
2542 strncpy((char *)¶m->lmd->lmd_lmm, fname, param->lumlen);
2544 ret = ioctl(dirfd(parent), IOC_MDC_GETFILESTRIPE,
2545 (void *)¶m->lmd->lmd_lmm);
2549 if (errno == ENODATA && d != NULL) {
2550 /* We need to "fake" the "use the default" values
2551 * since the lmm struct is zeroed out at this point.
2552 * The magic needs to be set in order to satisfy
2553 * a check later on in the code path.
2554 * The object_seq needs to be set for the "(Default)"
2555 * prefix to be displayed. */
2556 struct lov_user_md *lmm = ¶m->lmd->lmd_lmm;
2557 lmm->lmm_magic = LOV_MAGIC_V1;
2559 lmm->lmm_object_seq = FID_SEQ_LOV_DEFAULT;
2560 lmm->lmm_stripe_count = 0;
2561 lmm->lmm_stripe_size = 0;
2562 lmm->lmm_stripe_offset = -1;
2565 } else if (errno == ENODATA && parent != NULL) {
2566 if (!param->obduuid)
2567 llapi_printf(LLAPI_MSG_NORMAL,
2568 "%s has no stripe info\n", path);
2570 } else if (errno == ENOENT) {
2571 llapi_error(LLAPI_MSG_WARN, -ENOENT,
2572 "warning: %s: %s does not exist",
2575 } else if (errno == ENOTTY) {
2577 llapi_error(LLAPI_MSG_ERROR, ret,
2578 "%s: '%s' not on a Lustre fs?",
2582 llapi_error(LLAPI_MSG_ERROR, ret,
2583 "error: %s: %s failed for %s",
2584 __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
2585 "IOC_MDC_GETFILESTRIPE", path);
2592 if (!param->get_mdt_index)
2593 llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
2596 /* Do not get down anymore? */
2597 if (param->depth == param->maxdepth)
2604 int llapi_getstripe(char *path, struct find_param *param)
2606 return param_callback(path, param->get_mdt_index ?
2607 cb_get_mdt_index : cb_getstripe,
2608 cb_common_fini, param);
2611 int llapi_obd_statfs(char *path, __u32 type, __u32 index,
2612 struct obd_statfs *stat_buf,
2613 struct obd_uuid *uuid_buf)
2616 char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
2618 struct obd_ioctl_data data = { 0 };
2621 data.ioc_inlbuf1 = (char *)&type;
2622 data.ioc_inllen1 = sizeof(__u32);
2623 data.ioc_inlbuf2 = (char *)&index;
2624 data.ioc_inllen2 = sizeof(__u32);
2625 data.ioc_pbuf1 = (char *)stat_buf;
2626 data.ioc_plen1 = sizeof(struct obd_statfs);
2627 data.ioc_pbuf2 = (char *)uuid_buf;
2628 data.ioc_plen2 = sizeof(struct obd_uuid);
2630 rc = obd_ioctl_pack(&data, &rawbuf, sizeof(raw));
2632 llapi_error(LLAPI_MSG_ERROR, rc,
2633 "llapi_obd_statfs: error packing ioctl data");
2637 fd = open(path, O_RDONLY);
2638 if (errno == EISDIR)
2639 fd = open(path, O_DIRECTORY | O_RDONLY);
2642 rc = errno ? -errno : -EBADF;
2643 llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
2647 rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
2649 rc = errno ? -errno : -EINVAL;
2655 #define MAX_STRING_SIZE 128
2657 int llapi_ping(char *obd_type, char *obd_name)
2659 char path[MAX_STRING_SIZE];
2663 snprintf(path, MAX_STRING_SIZE, "/proc/fs/lustre/%s/%s/ping",
2664 obd_type, obd_name);
2666 fd = open(path, O_WRONLY);
2669 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
2673 rc = write(fd, buf, 1);
2683 int llapi_target_iterate(int type_num, char **obd_type,
2684 void *args, llapi_cb_t cb)
2686 char buf[MAX_STRING_SIZE];
2687 FILE *fp = fopen(DEVICES_LIST, "r");
2692 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening "DEVICES_LIST);
2696 while (fgets(buf, sizeof(buf), fp) != NULL) {
2697 char *obd_type_name = NULL;
2698 char *obd_name = NULL;
2699 char *obd_uuid = NULL;
2701 struct obd_statfs osfs_buffer;
2703 while(bufp[0] == ' ')
2706 for(i = 0; i < 3; i++) {
2707 obd_type_name = strsep(&bufp, " ");
2709 obd_name = strsep(&bufp, " ");
2710 obd_uuid = strsep(&bufp, " ");
2712 memset(&osfs_buffer, 0, sizeof (osfs_buffer));
2714 for (i = 0; i < type_num; i++) {
2715 if (strcmp(obd_type_name, obd_type[i]) != 0)
2718 cb(obd_type_name, obd_name, obd_uuid, args);
2725 static void do_target_check(char *obd_type_name, char *obd_name,
2726 char *obd_uuid, void *args)
2730 rc = llapi_ping(obd_type_name, obd_name);
2731 if (rc == ENOTCONN) {
2732 llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
2734 llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
2736 llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
2740 int llapi_target_check(int type_num, char **obd_type, char *dir)
2742 return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
2745 #undef MAX_STRING_SIZE
2747 int llapi_catinfo(char *dir, char *keyword, char *node_name)
2749 char raw[OBD_MAX_IOCTL_BUFFER];
2750 char out[LLOG_CHUNK_SIZE];
2752 struct obd_ioctl_data data = { 0 };
2757 sprintf(key, "%s", keyword);
2758 memset(raw, 0, sizeof(raw));
2759 memset(out, 0, sizeof(out));
2760 data.ioc_inlbuf1 = key;
2761 data.ioc_inllen1 = strlen(key) + 1;
2763 data.ioc_inlbuf2 = node_name;
2764 data.ioc_inllen2 = strlen(node_name) + 1;
2766 data.ioc_pbuf1 = out;
2767 data.ioc_plen1 = sizeof(out);
2768 rc = obd_ioctl_pack(&data, &buf, sizeof(raw));
2772 root = opendir(dir);
2775 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", dir);
2779 rc = ioctl(dirfd(root), OBD_IOC_LLOG_CATINFO, buf);
2782 llapi_error(LLAPI_MSG_ERROR, rc,
2783 "ioctl OBD_IOC_CATINFO failed");
2785 llapi_printf(LLAPI_MSG_NORMAL, "%s", data.ioc_pbuf1);
2792 /* Is this a lustre fs? */
2793 int llapi_is_lustre_mnttype(const char *type)
2795 return (strcmp(type, "lustre") == 0 || strcmp(type,"lustre_lite") == 0);
2798 /* Is this a lustre client fs? */
2799 int llapi_is_lustre_mnt(struct mntent *mnt)
2801 return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
2802 strstr(mnt->mnt_fsname, ":/") != NULL);
2805 int llapi_quotacheck(char *mnt, int check_type)
2810 root = opendir(mnt);
2813 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2817 rc = ioctl(dirfd(root), LL_IOC_QUOTACHECK, check_type);
2825 int llapi_poll_quotacheck(char *mnt, struct if_quotacheck *qchk)
2831 root = opendir(mnt);
2834 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2839 rc = ioctl(dirfd(root), LL_IOC_POLL_QUOTACHECK, qchk);
2843 if (poll_intvl < 30)
2851 int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
2856 root = opendir(mnt);
2859 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2863 rc = ioctl(dirfd(root), LL_IOC_QUOTACTL, qctl);
2871 static int cb_quotachown(char *path, DIR *parent, DIR *d, void *data,
2874 struct find_param *param = (struct find_param *)data;
2878 LASSERT(parent != NULL || d != NULL);
2880 rc = get_lmd_info(path, parent, d, param->lmd, param->lumlen);
2882 if (rc == -ENODATA) {
2883 if (!param->obduuid && !param->quiet)
2884 llapi_error(LLAPI_MSG_ERROR, -ENODATA,
2885 "%s has no stripe info", path);
2887 } else if (rc == -ENOENT) {
2893 st = ¶m->lmd->lmd_st;
2895 /* libc chown() will do extra check, and if the real owner is
2896 * the same as the ones to set, it won't fall into kernel, so
2897 * invoke syscall directly. */
2898 rc = syscall(SYS_chown, path, -1, -1);
2900 llapi_error(LLAPI_MSG_ERROR, errno,
2901 "error: chown %s", path);
2903 rc = chmod(path, st->st_mode);
2906 llapi_error(LLAPI_MSG_ERROR, rc, "error: chmod %s (%hu)",
2913 int llapi_quotachown(char *path, int flag)
2915 struct find_param param;
2917 memset(¶m, 0, sizeof(param));
2918 param.recursive = 1;
2922 return param_callback(path, cb_quotachown, NULL, ¶m);
2928 #include <sys/wait.h>
2932 static int rmtacl_notify(int ops)
2936 int found = 0, fd, rc;
2938 fp = setmntent(MOUNTED, "r");
2941 llapi_error(LLAPI_MSG_ERROR, rc,
2942 "error setmntent(%s)", MOUNTED);
2947 mnt = getmntent(fp);
2951 if (!llapi_is_lustre_mnt(mnt))
2954 fd = open(mnt->mnt_dir, O_RDONLY | O_DIRECTORY);
2957 llapi_error(LLAPI_MSG_ERROR, rc,
2958 "Can't open '%s'\n", mnt->mnt_dir);
2962 rc = ioctl(fd, LL_IOC_RMTACL, ops);
2965 llapi_error(LLAPI_MSG_ERROR, rc, "ioctl %d\n", fd);
2975 static char *next_token(char *p, int div)
2981 while (*p && *p != ':' && !isspace(*p))
2984 while (*p == ':' || isspace(*p))
2987 return *p ? p : NULL;
2990 static int rmtacl_name2id(char *name, int is_user)
2995 pw = getpwnam(name);
2999 return (int)(pw->pw_uid);
3003 gr = getgrnam(name);
3007 return (int)(gr->gr_gid);
3011 static int isodigit(int c)
3013 return (c >= '0' && c <= '7') ? 1 : 0;
3017 * Whether the name is just digits string (uid/gid) already or not.
3022 static int str_is_id(char *str)
3029 if (*str == 'x' || *str == 'X') { /* for Hex. */
3030 if (!isxdigit(*(++str)))
3033 while (isxdigit(*(++str)));
3034 } else if (isodigit(*str)) { /* for Oct. */
3035 while (isodigit(*(++str)));
3037 } else if (isdigit(*str)) { /* for Dec. */
3038 while (isdigit(*(++str)));
3041 return (*str == 0) ? 1 : 0;
3051 #define RMTACL_OPTNAME(name) name, sizeof(name) - 1
3053 static rmtacl_name_t rmtacl_namelist[] = {
3054 { RMTACL_OPTNAME("user:"), 1, 0 },
3055 { RMTACL_OPTNAME("group:"), 0, 0 },
3056 { RMTACL_OPTNAME("default:user:"), 1, 0 },
3057 { RMTACL_OPTNAME("default:group:"), 0, 0 },
3058 /* for --tabular option */
3059 { RMTACL_OPTNAME("user"), 1, 1 },
3060 { RMTACL_OPTNAME("group"), 0, 1 },
3064 static int rgetfacl_output(char *str)
3066 char *start = NULL, *end = NULL;
3067 int is_user = 0, n, id;
3074 for (rn = rmtacl_namelist; rn->name; rn++) {
3075 if(strncmp(str, rn->name, rn->length) == 0) {
3076 if (!rn->next_token)
3077 start = str + rn->length;
3079 start = next_token(str + rn->length, 0);
3080 is_user = rn->is_user;
3085 end = next_token(start, 1);
3086 if (end == NULL || start == end) {
3087 n = printf("%s", str);
3093 id = rmtacl_name2id(start, is_user);
3094 if (id == INVALID_ID) {
3095 if (str_is_id(start)) {
3097 n = printf("%s", str);
3100 } else if ((id == NOBODY_UID && is_user) ||
3101 (id == NOBODY_GID && !is_user)) {
3103 n = printf("%s", str);
3107 n = printf("%s%d%s", str, id, end);
3112 static int child_status(int status)
3114 return WIFEXITED(status) ? WEXITSTATUS(status) : -1;
3117 static int do_rmtacl(int argc, char *argv[], int ops, int (output_func)(char *))
3120 int fd[2], status, rc;
3127 llapi_error(LLAPI_MSG_ERROR, rc, "Can't create pipe\n");
3134 llapi_error(LLAPI_MSG_ERROR, rc, "Can't fork\n");
3139 /* child process redirects its output. */
3142 if (dup2(fd[1], 1) < 0) {
3144 llapi_error(LLAPI_MSG_ERROR, rc,
3145 "Can't dup2 %d\n", fd[1]);
3155 status = rmtacl_notify(ops);
3159 exit(execvp(argv[0], argv));
3162 /* the following is parent process */
3163 fp = fdopen(fd[0], "r");
3166 llapi_error(LLAPI_MSG_ERROR, rc, "fdopen %d failed\n", fd[0]);
3172 while (fgets(buf, PIPE_BUF, fp) != NULL) {
3173 if (output_func(buf) < 0)
3174 fprintf(stderr, "WARNING: unexpected error!\n[%s]\n",
3180 if (waitpid(pid, &status, 0) < 0) {
3182 llapi_error(LLAPI_MSG_ERROR, rc, "waitpid %d failed\n", pid);
3186 return child_status(status);
3189 int llapi_lsetfacl(int argc, char *argv[])
3191 return do_rmtacl(argc, argv, RMT_LSETFACL, NULL);
3194 int llapi_lgetfacl(int argc, char *argv[])
3196 return do_rmtacl(argc, argv, RMT_LGETFACL, NULL);
3199 int llapi_rsetfacl(int argc, char *argv[])
3201 return do_rmtacl(argc, argv, RMT_RSETFACL, NULL);
3204 int llapi_rgetfacl(int argc, char *argv[])
3206 return do_rmtacl(argc, argv, RMT_RGETFACL, rgetfacl_output);
3209 int llapi_cp(int argc, char *argv[])
3213 rc = rmtacl_notify(RMT_RSETFACL);
3217 exit(execvp(argv[0], argv));
3220 int llapi_ls(int argc, char *argv[])
3224 rc = rmtacl_notify(RMT_LGETFACL);
3228 exit(execvp(argv[0], argv));
3231 /* Print mdtname 'name' into 'buf' using 'format'. Add -MDT0000 if needed.
3232 * format must have %s%s, buf must be > 16
3233 * Eg: if name = "lustre-MDT0000", "lustre", or "lustre-MDT0000_UUID"
3234 * then buf = "lustre-MDT0000"
3236 static int get_mdtname(char *name, char *format, char *buf)
3238 char suffix[]="-MDT0000";
3239 int len = strlen(name);
3241 if ((len > 5) && (strncmp(name + len - 5, "_UUID", 5) == 0)) {
3242 name[len - 5] = '\0';
3247 if ((len <= 16) && strncmp(name + len - 8, "-MDT", 4) == 0) {
3250 /* Not enough room to add suffix */
3251 llapi_err_noerrno(LLAPI_MSG_ERROR,
3252 "MDT name too long |%s|", name);
3257 return sprintf(buf, format, name, suffix);
3260 /** ioctl on filsystem root, with mdtindex sent as data
3261 * \param mdtname path, fsname, or mdtname (lutre-MDT0004)
3262 * \param mdtidxp pointer to integer within data to be filled in with the
3263 * mdt index (0 if no mdt is specified). NULL won't be filled.
3265 static int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
3272 /* Take path, fsname, or MDTname. Assume MDT0000 in the former cases.
3273 Open root and parse mdt index. */
3274 if (mdtname[0] == '/') {
3276 rc = get_root_path(WANT_FD | want_error, NULL, &fd,
3277 (char *)mdtname, -1);
3279 if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
3281 ptr = fsname + strlen(fsname) - 8;
3283 index = strtol(ptr + 4, NULL, 10);
3284 rc = get_root_path(WANT_FD | want_error, fsname, &fd, NULL, -1);
3288 llapi_err_noerrno(LLAPI_MSG_ERROR,
3289 "Can't open %s: %d\n", mdtname, rc);
3296 rc = ioctl(fd, opc, data);
3301 if (rc && want_error)
3302 llapi_error(LLAPI_MSG_ERROR, rc, "ioctl %d err %d", opc, rc);
3308 /****** Changelog API ********/
3310 static int changelog_ioctl(const char *mdtname, int opc, int id,
3311 long long recno, int flags)
3313 struct ioc_changelog data;
3317 data.icc_recno = recno;
3318 data.icc_flags = flags;
3319 idx = (int *)(&data.icc_mdtindex);
3321 return root_ioctl(mdtname, opc, &data, idx, WANT_ERROR);
3324 #define CHANGELOG_PRIV_MAGIC 0xCA8E1080
3325 struct changelog_private {
3328 lustre_kernelcomm kuc;
3331 /** Start reading from a changelog
3332 * @param priv Opaque private control structure
3333 * @param flags Start flags (e.g. CHANGELOG_FLAG_BLOCK)
3334 * @param device Report changes recorded on this MDT
3335 * @param startrec Report changes beginning with this record number
3336 * (just call llapi_changelog_fini when done; don't need an endrec)
3338 int llapi_changelog_start(void **priv, int flags, const char *device,
3341 struct changelog_private *cp;
3344 /* Set up the receiver control struct */
3345 cp = calloc(1, sizeof(*cp));
3349 cp->magic = CHANGELOG_PRIV_MAGIC;
3352 /* Set up the receiver */
3353 rc = libcfs_ukuc_start(&cp->kuc, 0 /* no group registration */);
3359 /* Tell the kernel to start sending */
3360 rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
3362 /* Only the kernel reference keeps the write side open */
3363 close(cp->kuc.lk_wfd);
3366 /* frees and clears priv */
3367 llapi_changelog_fini(priv);
3378 /** Finish reading from a changelog */
3379 int llapi_changelog_fini(void **priv)
3381 struct changelog_private *cp = (struct changelog_private *)*priv;
3383 if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
3386 libcfs_ukuc_stop(&cp->kuc);
3392 /** Read the next changelog entry
3393 * @param priv Opaque private control structure
3394 * @param rech Changelog record handle; record will be allocated here
3395 * @return 0 valid message received; rec is set
3399 int llapi_changelog_recv(void *priv, struct changelog_rec **rech)
3401 struct changelog_private *cp = (struct changelog_private *)priv;
3402 struct kuc_hdr *kuch;
3405 if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
3409 kuch = malloc(CR_MAXSIZE + sizeof(*kuch));
3414 rc = libcfs_ukuc_msg_get(&cp->kuc, (char *)kuch,
3415 CR_MAXSIZE + sizeof(*kuch),
3416 KUC_TRANSPORT_CHANGELOG);
3420 if ((kuch->kuc_transport != KUC_TRANSPORT_CHANGELOG) ||
3421 ((kuch->kuc_msgtype != CL_RECORD) &&
3422 (kuch->kuc_msgtype != CL_EOF))) {
3423 llapi_err_noerrno(LLAPI_MSG_ERROR,
3424 "Unknown changelog message type %d:%d\n",
3425 kuch->kuc_transport, kuch->kuc_msgtype);
3430 if (kuch->kuc_msgtype == CL_EOF) {
3431 if (cp->flags & CHANGELOG_FLAG_FOLLOW) {
3440 /* Our message is a changelog_rec. Use pointer math to skip
3441 * kuch_hdr and point directly to the message payload.
3443 *rech = (struct changelog_rec *)(kuch + 1);
3453 /** Release the changelog record when done with it. */
3454 int llapi_changelog_free(struct changelog_rec **rech)
3457 /* We allocated memory starting at the kuc_hdr, but passed
3458 * the consumer a pointer to the payload.
3459 * Use pointer math to get back to the header.
3461 struct kuc_hdr *kuch = (struct kuc_hdr *)*rech - 1;
3468 int llapi_changelog_clear(const char *mdtname, const char *idstr,
3474 llapi_err_noerrno(LLAPI_MSG_ERROR,
3475 "can't purge negative records\n");
3479 id = strtol(idstr + strlen(CHANGELOG_USER_PREFIX), NULL, 10);
3480 if ((id == 0) || (strncmp(idstr, CHANGELOG_USER_PREFIX,
3481 strlen(CHANGELOG_USER_PREFIX)) != 0)) {
3482 llapi_err_noerrno(LLAPI_MSG_ERROR,
3483 "expecting id of the form '"
3484 CHANGELOG_USER_PREFIX
3485 "<num>'; got '%s'\n", idstr);
3489 return changelog_ioctl(mdtname, OBD_IOC_CHANGELOG_CLEAR, id, endrec, 0);
3492 int llapi_fid2path(const char *device, const char *fidstr, char *buf,
3493 int buflen, long long *recno, int *linkno)
3496 struct getinfo_fid2path *gf;
3499 while (*fidstr == '[')
3502 sscanf(fidstr, SFID, RFID(&fid));
3503 if (!fid_is_sane(&fid)) {
3504 llapi_err_noerrno(LLAPI_MSG_ERROR,
3505 "bad FID format [%s], should be "DFID"\n",
3506 fidstr, (__u64)1, 2, 0);
3510 gf = malloc(sizeof(*gf) + buflen);
3514 gf->gf_recno = *recno;
3515 gf->gf_linkno = *linkno;
3516 gf->gf_pathlen = buflen;
3518 /* Take path or fsname */
3519 rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
3522 llapi_error(LLAPI_MSG_ERROR, rc, "ioctl err %d", rc);
3524 memcpy(buf, gf->gf_path, gf->gf_pathlen);
3525 *recno = gf->gf_recno;
3526 *linkno = gf->gf_linkno;
3533 static int path2fid_from_lma(const char *path, lustre_fid *fid)
3536 struct lustre_mdt_attrs *lma;
3539 rc = lgetxattr(path, XATTR_NAME_LMA, buf, sizeof(buf));
3542 lma = (struct lustre_mdt_attrs *)buf;
3543 fid_le_to_cpu(fid, &lma->lma_self_fid);
3547 int llapi_path2fid(const char *path, lustre_fid *fid)
3551 memset(fid, 0, sizeof(*fid));
3552 fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
3554 if (errno == ELOOP) /* symbolic link */
3555 return path2fid_from_lma(path, fid);
3559 rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0;
3560 if (rc == -EINVAL) /* char special device */
3561 rc = path2fid_from_lma(path, fid);
3567 /****** HSM Copytool API ********/
3568 #define CT_PRIV_MAGIC 0xC0BE2001
3569 struct copytool_private {
3572 lustre_kernelcomm kuc;
3576 #include <libcfs/libcfs.h>
3578 /** Register a copytool
3579 * @param[out] priv Opaque private control structure
3580 * @param fsname Lustre filesystem
3581 * @param flags Open flags, currently unused (e.g. O_NONBLOCK)
3582 * @param archive_count
3583 * @param archives Which archive numbers this copytool is responsible for
3585 int llapi_copytool_start(void **priv, char *fsname, int flags,
3586 int archive_count, int *archives)
3588 struct copytool_private *ct;
3591 if (archive_count > 0 && archives == NULL) {
3592 llapi_err_noerrno(LLAPI_MSG_ERROR,
3593 "NULL archive numbers");
3597 ct = calloc(1, sizeof(*ct));
3601 ct->fsname = malloc(strlen(fsname) + 1);
3602 if (ct->fsname == NULL) {
3606 strcpy(ct->fsname, fsname);
3607 ct->magic = CT_PRIV_MAGIC;
3609 for (rc = 0; rc < archive_count; rc++) {
3610 if (archives[rc] > sizeof(ct->archives)) {
3611 llapi_err_noerrno(LLAPI_MSG_ERROR,
3612 "Maximum of %d archives supported",
3613 sizeof(ct->archives));
3616 ct->archives |= 1 << archives[rc];
3618 /* special case: if no archives specified, default to archive #0. */
3619 if (ct->archives == 0)
3622 rc = libcfs_ukuc_start(&ct->kuc, KUC_GRP_HSM);
3626 /* Storing archive(s) in lk_data; see mdc_ioc_hsm_ct_start */
3627 ct->kuc.lk_data = ct->archives;
3628 rc = root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL,
3630 /* Only the kernel reference keeps the write side open */
3631 close(ct->kuc.lk_wfd);
3646 /** Deregister a copytool */
3647 int llapi_copytool_fini(void **priv)
3649 struct copytool_private *ct = (struct copytool_private *)*priv;
3651 if (!ct || (ct->magic != CT_PRIV_MAGIC))
3654 /* Tell the kernel to stop sending us messages */
3655 ct->kuc.lk_flags = LK_FLG_STOP;
3656 root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL, 0);
3658 /* Shut down the kernelcomms */
3659 libcfs_ukuc_stop(&ct->kuc);
3667 /** Wait for the next hsm_action_list
3668 * @param priv Opaque private control structure
3669 * @param halh Action list handle, will be allocated here
3670 * @param msgsize Number of bytes in the message, will be set here
3671 * @return 0 valid message received; halh and msgsize are set
3674 int llapi_copytool_recv(void *priv, struct hsm_action_list **halh, int *msgsize)
3676 struct copytool_private *ct = (struct copytool_private *)priv;
3677 struct kuc_hdr *kuch;
3678 struct hsm_action_list *hal;
3681 if (!ct || (ct->magic != CT_PRIV_MAGIC))
3683 if (halh == NULL || msgsize == NULL)
3686 kuch = malloc(HAL_MAXSIZE + sizeof(*kuch));
3690 rc = libcfs_ukuc_msg_get(&ct->kuc, (char *)kuch,
3691 HAL_MAXSIZE + sizeof(*kuch),
3696 /* Handle generic messages */
3697 if (kuch->kuc_transport == KUC_TRANSPORT_GENERIC &&
3698 kuch->kuc_msgtype == KUC_MSG_SHUTDOWN) {
3703 if (kuch->kuc_transport != KUC_TRANSPORT_HSM ||
3704 kuch->kuc_msgtype != HMT_ACTION_LIST) {
3705 llapi_err_noerrno(LLAPI_MSG_ERROR,
3706 "Unknown HSM message type %d:%d\n",
3707 kuch->kuc_transport, kuch->kuc_msgtype);
3712 /* Our message is a hsm_action_list. Use pointer math to skip
3713 * kuch_hdr and point directly to the message payload.
3715 hal = (struct hsm_action_list *)(kuch + 1);
3717 /* Check that we have registered for this archive # */
3718 if (((1 << hal->hal_archive_num) & ct->archives) == 0) {
3719 llapi_err_noerrno(LLAPI_MSG_INFO,
3720 "Ignoring request for archive #%d (bitmask %#x)\n",
3721 hal->hal_archive_num, ct->archives);
3727 *msgsize = kuch->kuc_msglen - sizeof(*kuch);
3737 /** Release the action list when done with it. */
3738 int llapi_copytool_free(struct hsm_action_list **hal)
3740 /* Reuse the llapi_changelog_free function */
3741 return llapi_changelog_free((struct changelog_rec **)hal);
3744 int llapi_get_connect_flags(const char *mnt, __u64 *flags)
3749 root = opendir(mnt);
3752 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
3756 rc = ioctl(dirfd(root), LL_IOC_GET_CONNECT_FLAGS, flags);
3759 llapi_error(LLAPI_MSG_ERROR, rc,
3760 "ioctl on %s for getting connect flags failed", mnt);
3766 int llapi_get_version(char *buffer, int buffer_size,
3771 struct obd_ioctl_data *data = (struct obd_ioctl_data *)buffer;
3773 fd = open(OBD_DEV_PATH, O_RDONLY);
3777 memset(buffer, 0, buffer_size);
3778 data->ioc_version = OBD_IOCTL_VERSION;
3779 data->ioc_inllen1 = buffer_size - cfs_size_round(sizeof(*data));
3780 data->ioc_inlbuf1 = buffer + cfs_size_round(sizeof(*data));
3781 data->ioc_len = obd_ioctl_packlen(data);
3783 rc = ioctl(fd, OBD_GET_VERSION, buffer);
3790 *version = data->ioc_bulk;