4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2015, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/utils/liblustreapi.c
38 * Author: Peter J. Braam <braam@clusterfs.com>
39 * Author: Phil Schwan <phil@clusterfs.com>
40 * Author: Robert Read <rread@clusterfs.com>
53 #include <sys/ioctl.h>
60 #include <sys/statfs.h>
61 #include <sys/syscall.h>
63 #include <sys/types.h>
64 #include <sys/xattr.h>
67 #include <libgen.h> /* for dirname() */
68 #ifdef HAVE_LINUX_UNISTD_H
69 #include <linux/unistd.h>
75 #include <libcfs/util/param.h>
76 #include <libcfs/util/string.h>
77 #include <lnet/lnetctl.h>
78 #include <lustre/lustreapi.h>
79 #include <lustre_ioctl.h>
80 #include "lustreapi_internal.h"
82 static int llapi_msg_level = LLAPI_MSG_MAX;
84 void llapi_msg_set_level(int level)
86 /* ensure level is in the good range */
87 if (level < LLAPI_MSG_OFF)
88 llapi_msg_level = LLAPI_MSG_OFF;
89 else if (level > LLAPI_MSG_MAX)
90 llapi_msg_level = LLAPI_MSG_MAX;
92 llapi_msg_level = level;
95 int llapi_msg_get_level(void)
97 return llapi_msg_level;
100 static void error_callback_default(enum llapi_message_level level, int err,
101 const char *fmt, va_list ap)
103 vfprintf(stderr, fmt, ap);
104 if (level & LLAPI_MSG_NO_ERRNO)
105 fprintf(stderr, "\n");
107 fprintf(stderr, ": %s (%d)\n", strerror(err), err);
110 static void info_callback_default(enum llapi_message_level level, int err,
111 const char *fmt, va_list ap)
113 vfprintf(stdout, fmt, ap);
116 static llapi_log_callback_t llapi_error_callback = error_callback_default;
117 static llapi_log_callback_t llapi_info_callback = info_callback_default;
120 /* llapi_error will preserve errno */
121 void llapi_error(enum llapi_message_level level, int err, const char *fmt, ...)
124 int tmp_errno = errno;
126 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
130 llapi_error_callback(level, abs(err), fmt, args);
135 /* llapi_printf will preserve errno */
136 void llapi_printf(enum llapi_message_level level, const char *fmt, ...)
139 int tmp_errno = errno;
141 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
145 llapi_info_callback(level, 0, fmt, args);
151 * Set a custom error logging function. Passing in NULL will reset the logging
152 * callback to its default value.
154 * This function returns the value of the old callback.
156 llapi_log_callback_t llapi_error_callback_set(llapi_log_callback_t cb)
158 llapi_log_callback_t old = llapi_error_callback;
161 llapi_error_callback = cb;
163 llapi_error_callback = error_callback_default;
169 * Set a custom info logging function. Passing in NULL will reset the logging
170 * callback to its default value.
172 * This function returns the value of the old callback.
174 llapi_log_callback_t llapi_info_callback_set(llapi_log_callback_t cb)
176 llapi_log_callback_t old = llapi_info_callback;
179 llapi_info_callback = cb;
181 llapi_info_callback = info_callback_default;
187 * size_units is to be initialized (or zeroed) by caller.
189 int llapi_parse_size(const char *optarg, unsigned long long *size,
190 unsigned long long *size_units, int bytes_spec)
193 char *argbuf = (char *)optarg;
194 unsigned long long frac = 0, frac_d = 1;
196 if (strncmp(optarg, "-", 1) == 0)
199 if (*size_units == 0)
202 *size = strtoull(argbuf, &end, 0);
203 if (end != NULL && *end == '.') {
207 frac = strtoull(argbuf, &end, 10);
208 /* count decimal places */
209 for (i = 0; i < (end - argbuf); i++)
214 if ((*end == 'b') && *(end + 1) == '\0' &&
215 (*size & (~0ULL << (64 - 9))) == 0 &&
217 *size_units = 1 << 9;
218 } else if ((*end == 'b') &&
219 *(end + 1) == '\0' &&
222 } else if ((*end == 'k' || *end == 'K') &&
223 *(end + 1) == '\0' &&
224 (*size & (~0ULL << (64 - 10))) == 0) {
225 *size_units = 1 << 10;
226 } else if ((*end == 'm' || *end == 'M') &&
227 *(end + 1) == '\0' &&
228 (*size & (~0ULL << (64 - 20))) == 0) {
229 *size_units = 1 << 20;
230 } else if ((*end == 'g' || *end == 'G') &&
231 *(end + 1) == '\0' &&
232 (*size & (~0ULL << (64 - 30))) == 0) {
233 *size_units = 1 << 30;
234 } else if ((*end == 't' || *end == 'T') &&
235 *(end + 1) == '\0' &&
236 (*size & (~0ULL << (64 - 40))) == 0) {
237 *size_units = 1ULL << 40;
238 } else if ((*end == 'p' || *end == 'P') &&
239 *(end + 1) == '\0' &&
240 (*size & (~0ULL << (64 - 50))) == 0) {
241 *size_units = 1ULL << 50;
242 } else if ((*end == 'e' || *end == 'E') &&
243 *(end + 1) == '\0' &&
244 (*size & (~0ULL << (64 - 60))) == 0) {
245 *size_units = 1ULL << 60;
250 *size = *size * *size_units + frac * *size_units / frac_d;
255 /* XXX: llapi_xxx() functions return negative values upon failure */
257 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
258 int stripe_count, int stripe_pattern)
262 /* 64 KB is the largest common page size I'm aware of (on ia64), but
263 * check the local page size just in case. */
264 page_size = LOV_MIN_STRIPE_SIZE;
265 if (getpagesize() > page_size) {
266 page_size = getpagesize();
267 llapi_err_noerrno(LLAPI_MSG_WARN,
268 "warning: your page size (%u) is "
269 "larger than expected (%u)", page_size,
270 LOV_MIN_STRIPE_SIZE);
272 if (!llapi_stripe_size_is_aligned(stripe_size)) {
274 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe_size %llu, "
275 "must be an even multiple of %d bytes",
276 stripe_size, page_size);
279 if (!llapi_stripe_index_is_valid(stripe_offset)) {
281 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
285 if (!llapi_stripe_count_is_valid(stripe_count)) {
287 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
291 if (llapi_stripe_size_is_too_big(stripe_size)) {
293 llapi_error(LLAPI_MSG_ERROR, rc,
294 "warning: stripe size 4G or larger "
295 "is not currently supported and would wrap");
302 * Trim a trailing newline from a string, if it exists.
304 int llapi_chomp_string(char *buf)
320 * Wrapper to grab parameter settings for lov.*-clilov-*.* values
322 static int get_param_lov(const char *path, const char *param,
323 char *buf, size_t buf_size)
325 struct obd_uuid uuid;
328 rc = llapi_file_get_lov_uuid(path, &uuid);
332 return get_lustre_param_value("lov", uuid.uuid, FILTER_BY_EXACT, param,
337 * Wrapper to grab parameter settings for lmv.*-clilov-*.* values
339 static int get_param_lmv(const char *path, const char *param,
340 char *buf, size_t buf_size)
342 struct obd_uuid uuid;
345 rc = llapi_file_get_lmv_uuid(path, &uuid);
349 return get_lustre_param_value("lmv", uuid.uuid, FILTER_BY_EXACT, param,
353 static int get_mds_md_size(const char *path)
355 char buf[PATH_MAX], inst[PATH_MAX];
356 int md_size = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
359 rc = llapi_getname(path, inst, sizeof(inst));
363 /* Get the max ea size from llite parameters. */
364 rc = get_lustre_param_value("llite", inst, FILTER_BY_EXACT,
365 "max_easize", buf, sizeof(buf));
371 return rc > 0 ? rc : md_size;
374 int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
376 return get_param_lmv(path, "uuid", buf, bufsize);
380 * if pool is NULL, search ostname in target_obd
381 * if pool is not NULL:
382 * if pool not found returns errno < 0
383 * if ostname is NULL, returns 1 if pool is not empty and 0 if pool empty
384 * if ostname is not NULL, returns 1 if OST is in pool and 0 if not
386 int llapi_search_ost(char *fsname, char *poolname, char *ostname)
388 char buffer[PATH_MAX];
394 /* You need one or the other */
395 if (poolname == NULL && fsname == NULL)
399 len = strlen(ostname);
401 if (poolname == NULL && len == 0)
404 /* Search by poolname and fsname if is not NULL */
405 if (poolname != NULL) {
406 rc = poolpath(¶m, fsname, NULL);
408 snprintf(buffer, sizeof(buffer), "%s/%s",
409 param.gl_pathv[0], poolname);
411 } else if (fsname != NULL) {
412 rc = get_lustre_param_path("lov", fsname,
414 "target_obd", ¶m);
416 strncpy(buffer, param.gl_pathv[0],
422 cfs_free_param_data(¶m);
426 fd = fopen(buffer, "r");
430 while (fgets(buffer, sizeof(buffer), fd) != NULL) {
431 if (poolname == NULL) {
433 /* Search for an ostname in the list of OSTs
434 Line format is IDX: fsname-OSTxxxx_UUID STATUS */
435 ptr = strchr(buffer, ' ');
437 (strncmp(ptr + 1, ostname, len) == 0)) {
442 /* Search for an ostname in a pool,
443 (or an existing non-empty pool if no ostname) */
444 if ((ostname == NULL) ||
445 (strncmp(buffer, ostname, len) == 0)) {
456 * Open a Lustre file.
458 * \param name the name of the file to be opened
459 * \param flags access mode, see flags in open(2)
460 * \param mode permission of the file if it is created, see mode in open(2)
461 * \param param stripe pattern of the newly created file
463 * \retval file descriptor of opened file
464 * \retval negative errno on failure
466 int llapi_file_open_param(const char *name, int flags, mode_t mode,
467 const struct llapi_stripe_param *param)
469 char fsname[MAX_OBD_NAME + 1] = { 0 };
470 char *pool_name = param->lsp_pool;
471 struct lov_user_md *lum = NULL;
472 size_t lum_size = sizeof(*lum);
475 /* Make sure we are on a Lustre file system */
476 rc = llapi_search_fsname(name, fsname);
478 llapi_error(LLAPI_MSG_ERROR, rc,
479 "'%s' is not on a Lustre filesystem",
484 /* Check if the stripe pattern is sane. */
485 rc = llapi_stripe_limit_check(param->lsp_stripe_size,
486 param->lsp_stripe_offset,
487 param->lsp_stripe_count,
488 param->lsp_stripe_pattern);
492 /* Make sure we have a good pool */
493 if (pool_name != NULL) {
494 /* in case user gives the full pool name <fsname>.<poolname>,
495 * strip the fsname */
496 char *ptr = strchr(pool_name, '.');
499 if (strcmp(pool_name, fsname) != 0) {
501 llapi_err_noerrno(LLAPI_MSG_ERROR,
502 "Pool '%s' is not on filesystem '%s'",
509 /* Make sure the pool exists and is non-empty */
510 rc = llapi_search_ost(fsname, pool_name, NULL);
512 char *err = rc == 0 ? "has no OSTs" : "does not exist";
514 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
515 fsname, pool_name, err);
519 lum_size = sizeof(struct lov_user_md_v3);
522 /* sanity check of target list */
523 if (param->lsp_is_specific) {
524 char ostname[MAX_OBD_NAME + 1];
528 for (i = 0; i < param->lsp_stripe_count; i++) {
529 snprintf(ostname, sizeof(ostname), "%s-OST%04x_UUID",
530 fsname, param->lsp_osts[i]);
531 rc = llapi_search_ost(fsname, pool_name, ostname);
536 llapi_error(LLAPI_MSG_ERROR, rc,
537 "%s: cannot find OST %s in %s",
544 /* Make sure stripe offset is in OST list. */
545 if (param->lsp_osts[i] == param->lsp_stripe_offset)
549 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
550 "%s: stripe offset '%d' is not in the "
552 __func__, param->lsp_stripe_offset);
556 lum_size = lov_user_md_size(param->lsp_stripe_count,
557 LOV_USER_MAGIC_SPECIFIC);
560 lum = calloc(1, lum_size);
565 fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
567 if (errno == EISDIR && !(flags & O_DIRECTORY)) {
568 flags = O_DIRECTORY | O_RDONLY;
575 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
580 /* Initialize IOCTL striping pattern structure */
581 lum->lmm_magic = LOV_USER_MAGIC_V1;
582 lum->lmm_pattern = param->lsp_stripe_pattern;
583 lum->lmm_stripe_size = param->lsp_stripe_size;
584 lum->lmm_stripe_count = param->lsp_stripe_count;
585 lum->lmm_stripe_offset = param->lsp_stripe_offset;
586 if (pool_name != NULL) {
587 struct lov_user_md_v3 *lumv3 = (void *)lum;
589 lumv3->lmm_magic = LOV_USER_MAGIC_V3;
590 strncpy(lumv3->lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
592 if (param->lsp_is_specific) {
593 struct lov_user_md_v3 *lumv3 = (void *)lum;
596 lumv3->lmm_magic = LOV_USER_MAGIC_SPECIFIC;
597 if (pool_name == NULL) {
598 /* LOV_USER_MAGIC_SPECIFIC uses v3 format plus specified
599 * OST list, therefore if pool is not specified we have
600 * to pack a null pool name for placeholder. */
601 memset(lumv3->lmm_pool_name, 0, LOV_MAXPOOLNAME);
604 for (i = 0; i < param->lsp_stripe_count; i++)
605 lumv3->lmm_objects[i].l_ost_idx = param->lsp_osts[i];
608 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lum) != 0) {
609 char *errmsg = "stripe already set";
612 if (errno != EEXIST && errno != EALREADY)
613 errmsg = strerror(errno);
615 llapi_err_noerrno(LLAPI_MSG_ERROR,
616 "error on ioctl "LPX64" for '%s' (%d): %s",
617 (__u64)LL_IOC_LOV_SETSTRIPE, name, fd,
629 int llapi_file_open_pool(const char *name, int flags, int mode,
630 unsigned long long stripe_size, int stripe_offset,
631 int stripe_count, int stripe_pattern, char *pool_name)
633 const struct llapi_stripe_param param = {
634 .lsp_stripe_size = stripe_size,
635 .lsp_stripe_count = stripe_count,
636 .lsp_stripe_pattern = stripe_pattern,
637 .lsp_stripe_offset = stripe_offset,
638 .lsp_pool = pool_name
640 return llapi_file_open_param(name, flags, mode, ¶m);
643 int llapi_file_open(const char *name, int flags, int mode,
644 unsigned long long stripe_size, int stripe_offset,
645 int stripe_count, int stripe_pattern)
647 return llapi_file_open_pool(name, flags, mode, stripe_size,
648 stripe_offset, stripe_count,
649 stripe_pattern, NULL);
652 int llapi_file_create(const char *name, unsigned long long stripe_size,
653 int stripe_offset, int stripe_count, int stripe_pattern)
657 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
658 stripe_offset, stripe_count, stripe_pattern,
667 int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
668 int stripe_offset, int stripe_count,
669 int stripe_pattern, char *pool_name)
673 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
674 stripe_offset, stripe_count, stripe_pattern,
683 int llapi_dir_set_default_lmv_stripe(const char *name, int stripe_offset,
684 int stripe_count, int stripe_pattern,
685 const char *pool_name)
687 struct lmv_user_md lum = { 0 };
691 lum.lum_magic = LMV_USER_MAGIC;
692 lum.lum_stripe_offset = stripe_offset;
693 lum.lum_stripe_count = stripe_count;
694 lum.lum_hash_type = stripe_pattern;
695 if (pool_name != NULL) {
696 if (strlen(pool_name) >= sizeof(lum.lum_pool_name)) {
697 llapi_err_noerrno(LLAPI_MSG_ERROR,
698 "error LL_IOC_LMV_SET_DEFAULT_STRIPE '%s'"
699 ": too large pool name: %s", name, pool_name);
702 strncpy(lum.lum_pool_name, pool_name,
703 sizeof(lum.lum_pool_name));
706 fd = open(name, O_DIRECTORY | O_RDONLY);
709 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
713 rc = ioctl(fd, LL_IOC_LMV_SET_DEFAULT_STRIPE, &lum);
715 char *errmsg = "stripe already set";
717 if (errno != EEXIST && errno != EALREADY)
718 errmsg = strerror(errno);
720 llapi_err_noerrno(LLAPI_MSG_ERROR,
721 "error on LL_IOC_LMV_SETSTRIPE '%s' (%d): %s",
728 int llapi_dir_create_pool(const char *name, int mode, int stripe_offset,
729 int stripe_count, int stripe_pattern,
730 const char *pool_name)
732 struct lmv_user_md lmu = { 0 };
733 struct obd_ioctl_data data = { 0 };
736 char *dirpath = NULL;
737 char *namepath = NULL;
743 dirpath = strdup(name);
744 namepath = strdup(name);
745 if (!dirpath || !namepath)
748 lmu.lum_magic = LMV_USER_MAGIC;
749 lmu.lum_stripe_offset = stripe_offset;
750 lmu.lum_stripe_count = stripe_count;
751 lmu.lum_hash_type = stripe_pattern;
752 if (pool_name != NULL) {
753 if (strlen(pool_name) > LOV_MAXPOOLNAME) {
754 llapi_err_noerrno(LLAPI_MSG_ERROR,
755 "error LL_IOC_LMV_SETSTRIPE '%s' : too large"
756 "pool name: %s", name, pool_name);
760 memcpy(lmu.lum_pool_name, pool_name, strlen(pool_name));
763 filename = basename(namepath);
764 dir = dirname(dirpath);
766 data.ioc_inlbuf1 = (char *)filename;
767 data.ioc_inllen1 = strlen(filename) + 1;
768 data.ioc_inlbuf2 = (char *)&lmu;
769 data.ioc_inllen2 = sizeof(struct lmv_user_md);
770 data.ioc_type = mode;
771 rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
773 llapi_error(LLAPI_MSG_ERROR, rc,
774 "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
779 fd = open(dir, O_DIRECTORY | O_RDONLY);
782 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
786 if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
787 char *errmsg = "stripe already set";
789 if (errno != EEXIST && errno != EALREADY)
790 errmsg = strerror(errno);
792 llapi_err_noerrno(LLAPI_MSG_ERROR,
793 "error on LL_IOC_LMV_SETSTRIPE '%s' (%d): %s",
803 int llapi_direntry_remove(char *dname)
805 char *dirpath = NULL;
806 char *namepath = NULL;
812 dirpath = strdup(dname);
813 namepath = strdup(dname);
814 if (!dirpath || !namepath)
817 filename = basename(namepath);
819 dir = dirname(dirpath);
821 fd = open(dir, O_DIRECTORY | O_RDONLY);
824 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'",
829 if (ioctl(fd, LL_IOC_REMOVE_ENTRY, filename)) {
830 char *errmsg = strerror(errno);
831 llapi_err_noerrno(LLAPI_MSG_ERROR,
832 "error on ioctl "LPX64" for '%s' (%d): %s",
833 (__u64)LL_IOC_LMV_SETSTRIPE, filename,
845 * Find the fsname, the full path, and/or an open fd.
846 * Either the fsname or path must not be NULL
848 int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
851 char buf[PATH_MAX], mntdir[PATH_MAX];
854 int idx = 0, len = 0, mntlen, fd;
857 /* get the mount point */
858 fp = setmntent(MOUNTED, "r");
861 llapi_error(LLAPI_MSG_ERROR, rc,
862 "setmntent(%s) failed", MOUNTED);
866 if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
869 if (!llapi_is_lustre_mnt(&mnt))
872 if ((want & WANT_INDEX) && (idx++ != index))
875 mntlen = strlen(mnt.mnt_dir);
876 ptr = strrchr(mnt.mnt_fsname, '/');
877 /* thanks to the call to llapi_is_lustre_mnt() above,
878 * we are sure that mnt.mnt_fsname contains ":/",
879 * so ptr should never be NULL */
884 /* Check the fsname for a match, if given */
885 if (!(want & WANT_FSNAME) && fsname != NULL &&
886 (strlen(fsname) > 0) && (strcmp(ptr, fsname) != 0))
889 /* If the path isn't set return the first one we find */
890 if (path == NULL || strlen(path) == 0) {
891 strcpy(mntdir, mnt.mnt_dir);
892 if ((want & WANT_FSNAME) && fsname != NULL)
896 /* Otherwise find the longest matching path */
897 } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
898 (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
899 strcpy(mntdir, mnt.mnt_dir);
901 if ((want & WANT_FSNAME) && fsname != NULL)
910 if ((want & WANT_PATH) && path != NULL)
911 strcpy(path, mntdir);
912 if (want & WANT_FD) {
913 fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
916 llapi_error(LLAPI_MSG_ERROR, rc,
917 "error opening '%s'", mntdir);
923 } else if (want & WANT_ERROR)
924 llapi_err_noerrno(LLAPI_MSG_ERROR,
925 "can't find fs root for '%s': %d",
926 (want & WANT_PATH) ? fsname : path, rc);
931 * search lustre mounts
933 * Calling this function will return to the user the mount point, mntdir, and
934 * the file system name, fsname, if the user passed a buffer to this routine.
936 * The user inputs are pathname and index. If the pathname is supplied then
937 * the value of the index will be ignored. The pathname will return data if
938 * the pathname is located on a lustre mount. Index is used to pick which
939 * mount point you want in the case of multiple mounted lustre file systems.
940 * See function lfs_osts in lfs.c for an example of the index use.
942 int llapi_search_mounts(const char *pathname, int index, char *mntdir,
945 int want = WANT_PATH, idx = -1;
947 if (!pathname || pathname[0] == '\0') {
951 strcpy(mntdir, pathname);
955 return get_root_path(want, fsname, NULL, mntdir, idx);
958 /* Given a path, find the corresponding Lustre fsname */
959 int llapi_search_fsname(const char *pathname, char *fsname)
964 path = realpath(pathname, NULL);
966 char buf[PATH_MAX], *ptr;
969 if (pathname[0] != '/') {
970 /* Need an absolute path, but realpath() only works for
971 * pathnames that actually exist. We go through the
972 * extra hurdle of dirname(getcwd() + pathname) in
973 * case the relative pathname contains ".." in it. */
974 if (getcwd(buf, sizeof(buf) - 2) == NULL)
976 rc = strlcat(buf, "/", sizeof(buf));
977 if (rc >= sizeof(buf))
980 rc = strlcat(buf, pathname, sizeof(buf));
981 if (rc >= sizeof(buf))
983 path = realpath(buf, NULL);
985 ptr = strrchr(buf, '/');
989 path = realpath(buf, NULL);
992 llapi_error(LLAPI_MSG_ERROR, rc,
993 "pathname '%s' cannot expand",
999 rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1);
1004 int llapi_search_rootpath(char *pathname, const char *fsname)
1006 return get_root_path(WANT_PATH, (char *)fsname, NULL, pathname, -1);
1009 int llapi_getname(const char *path, char *buf, size_t size)
1011 struct obd_uuid uuid_buf;
1012 char *uuid = uuid_buf.uuid;
1015 memset(&uuid_buf, 0, sizeof(uuid_buf));
1016 rc = llapi_file_get_lov_uuid(path, &uuid_buf);
1020 /* We want to turn lustre-clilov-ffff88002738bc00 into
1021 * lustre-ffff88002738bc00. */
1023 nr = snprintf(buf, size, "%.*s-%s",
1024 (int) (strlen(uuid) - 24), uuid,
1025 uuid + strlen(uuid) - 16);
1034 * Get the list of pool members.
1035 * \param poolname string of format \<fsname\>.\<poolname\>
1036 * \param members caller-allocated array of char*
1037 * \param list_size size of the members array
1038 * \param buffer caller-allocated buffer for storing OST names
1039 * \param buffer_size size of the buffer
1041 * \return number of members retrieved for this pool
1042 * \retval -error failure
1044 int llapi_get_poolmembers(const char *poolname, char **members,
1045 int list_size, char *buffer, int buffer_size)
1047 char fsname[PATH_MAX];
1056 /* name is FSNAME.POOLNAME */
1057 if (strlen(poolname) >= sizeof(fsname))
1059 strlcpy(fsname, poolname, sizeof(fsname));
1060 pool = strchr(fsname, '.');
1067 rc = poolpath(&pathname, fsname, NULL);
1069 llapi_error(LLAPI_MSG_ERROR, rc,
1070 "Lustre filesystem '%s' not found",
1075 llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
1076 rc = snprintf(buf, sizeof(buf), "%s/%s", pathname.gl_pathv[0], pool);
1077 cfs_free_param_data(&pathname);
1078 if (rc >= sizeof(buf))
1080 fd = fopen(buf, "r");
1083 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open %s", buf);
1088 while (fgets(buf, sizeof(buf), fd) != NULL) {
1089 if (nb_entries >= list_size) {
1093 buf[sizeof(buf) - 1] = '\0';
1095 tmp = strchr(buf, '\n');
1098 if (used + strlen(buf) + 1 > buffer_size) {
1103 strcpy(buffer + used, buf);
1104 members[nb_entries] = buffer + used;
1105 used += strlen(buf) + 1;
1115 * Get the list of pools in a filesystem.
1116 * \param name filesystem name or path
1117 * \param poollist caller-allocated array of char*
1118 * \param list_size size of the poollist array
1119 * \param buffer caller-allocated buffer for storing pool names
1120 * \param buffer_size size of the buffer
1122 * \return number of pools retrieved for this filesystem
1123 * \retval -error failure
1125 int llapi_get_poollist(const char *name, char **poollist, int list_size,
1126 char *buffer, int buffer_size)
1128 char rname[PATH_MAX];
1134 struct dirent *cookie = NULL;
1136 unsigned int nb_entries = 0;
1137 unsigned int used = 0;
1140 /* initialize output array */
1141 for (i = 0; i < list_size; i++)
1144 /* is name a pathname ? */
1145 ptr = strchr(name, '/');
1147 /* only absolute pathname is supported */
1151 if (!realpath(name, rname)) {
1153 llapi_error(LLAPI_MSG_ERROR, rc, "invalid path '%s'",
1158 fsname = strdup(rname);
1162 rc = poolpath(&pathname, NULL, rname);
1164 /* name is FSNAME */
1165 fsname = strdup(name);
1168 rc = poolpath(&pathname, fsname, NULL);
1171 llapi_error(LLAPI_MSG_ERROR, rc,
1172 "Lustre filesystem '%s' not found", name);
1176 llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
1177 dir = opendir(pathname.gl_pathv[0]);
1180 llapi_error(LLAPI_MSG_ERROR, rc,
1181 "Could not open pool list for '%s'",
1187 rc = readdir_r(dir, &pool, &cookie);
1190 llapi_error(LLAPI_MSG_ERROR, rc,
1191 "Error reading pool list for '%s'", name);
1193 } else if ((rc == 0) && (cookie == NULL)) {
1194 /* end of directory */
1198 /* ignore . and .. */
1199 if (!strcmp(pool.d_name, ".") || !strcmp(pool.d_name, ".."))
1202 /* check output bounds */
1203 if (nb_entries >= list_size) {
1208 /* +2 for '.' and final '\0' */
1209 if (used + strlen(pool.d_name) + strlen(fsname) + 2
1215 sprintf(buffer + used, "%s.%s", fsname, pool.d_name);
1216 poollist[nb_entries] = buffer + used;
1217 used += strlen(pool.d_name) + strlen(fsname) + 2;
1224 cfs_free_param_data(&pathname);
1227 return rc != 0 ? rc : nb_entries;
1230 /* wrapper for lfs.c and obd.c */
1231 int llapi_poollist(const char *name)
1233 /* list of pool names (assume that pool count is smaller
1235 char **list, *buffer = NULL, *fsname = (char *)name;
1236 char *poolname = NULL, *tmp = NULL, data[16];
1237 enum param_filter type = FILTER_BY_PATH;
1238 int obdcount, bufsize, rc, nb, i;
1243 if (name[0] != '/') {
1244 fsname = strdup(name);
1248 poolname = strchr(fsname, '.');
1251 type = FILTER_BY_FS_NAME;
1254 rc = get_lustre_param_value("lov", fsname, type, "numobd",
1255 data, sizeof(data));
1258 obdcount = atoi(data);
1260 /* Allocate space for each fsname-OST0000_UUID, 1 per OST,
1261 * and also an array to store the pointers for all that
1262 * allocated space. */
1264 bufsize = sizeof(struct obd_uuid) * obdcount;
1265 buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
1266 if (buffer == NULL) {
1270 list = (char **) (buffer + bufsize);
1273 /* name is a path or fsname */
1274 nb = llapi_get_poollist(name, list, obdcount,
1277 /* name is a pool name (<fsname>.<poolname>) */
1278 nb = llapi_get_poolmembers(name, list, obdcount,
1282 if (nb == -EOVERFLOW) {
1285 goto retry_get_pools;
1288 for (i = 0; i < nb; i++)
1289 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
1290 rc = (nb < 0 ? nb : 0);
1294 if (fsname != NULL && type == FILTER_BY_FS_NAME)
1299 typedef int (semantic_func_t)(char *path, DIR *parent, DIR **d,
1300 void *data, struct dirent64 *de);
1302 #define OBD_NOT_FOUND (-1)
1304 static int common_param_init(struct find_param *param, char *path)
1306 int lum_size = get_mds_md_size(path);
1308 if (lum_size < PATH_MAX + 1)
1309 lum_size = PATH_MAX + 1;
1311 param->fp_lum_size = lum_size;
1312 param->fp_lmd = calloc(1, sizeof(lstat_t) + param->fp_lum_size);
1313 if (param->fp_lmd == NULL) {
1314 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1315 "error: allocation of %zu bytes for ioctl",
1316 sizeof(lstat_t) + param->fp_lum_size);
1320 param->fp_lmv_stripe_count = 256;
1321 param->fp_lmv_md = calloc(1,
1322 lmv_user_md_size(param->fp_lmv_stripe_count,
1324 if (param->fp_lmv_md == NULL) {
1325 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1326 "error: allocation of %d bytes for ioctl",
1327 lmv_user_md_size(param->fp_lmv_stripe_count,
1332 param->fp_got_uuids = 0;
1333 param->fp_obd_indexes = NULL;
1334 param->fp_obd_index = OBD_NOT_FOUND;
1335 if (!param->fp_migrate)
1336 param->fp_mdt_index = OBD_NOT_FOUND;
1340 static void find_param_fini(struct find_param *param)
1342 if (param->fp_obd_indexes)
1343 free(param->fp_obd_indexes);
1346 free(param->fp_lmd);
1348 if (param->fp_lmv_md)
1349 free(param->fp_lmv_md);
1352 static int cb_common_fini(char *path, DIR *parent, DIR **dirp, void *data,
1353 struct dirent64 *de)
1355 struct find_param *param = data;
1361 /* set errno upon failure */
1362 static DIR *opendir_parent(const char *path)
1368 path_copy = strdup(path);
1369 if (path_copy == NULL)
1372 parent_path = dirname(path_copy);
1373 parent = opendir(parent_path);
1379 static int cb_get_dirstripe(char *path, DIR *d, struct find_param *param)
1384 param->fp_lmv_md->lum_stripe_count = param->fp_lmv_stripe_count;
1385 if (param->fp_get_default_lmv)
1386 param->fp_lmv_md->lum_magic = LMV_USER_MAGIC;
1388 param->fp_lmv_md->lum_magic = LMV_MAGIC_V1;
1390 ret = ioctl(dirfd(d), LL_IOC_LMV_GETSTRIPE, param->fp_lmv_md);
1391 if (errno == E2BIG && ret != 0) {
1395 stripe_count = (__u32)param->fp_lmv_md->lum_stripe_count;
1396 if (stripe_count <= param->fp_lmv_stripe_count)
1399 free(param->fp_lmv_md);
1400 param->fp_lmv_stripe_count = stripe_count;
1401 lmv_size = lmv_user_md_size(stripe_count, LMV_MAGIC_V1);
1402 param->fp_lmv_md = malloc(lmv_size);
1403 if (param->fp_lmv_md == NULL) {
1404 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1405 "error: allocation of %d bytes for ioctl",
1406 lmv_user_md_size(param->fp_lmv_stripe_count,
1415 static int get_lmd_info(char *path, DIR *parent, DIR *dir,
1416 struct lov_user_mds_data *lmd, int lumlen)
1418 lstat_t *st = &lmd->lmd_st;
1421 if (parent == NULL && dir == NULL)
1425 ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO, (void *)lmd);
1426 } else if (parent) {
1427 char *fname = strrchr(path, '/');
1429 /* To avoid opening, locking, and closing each file on the
1430 * client if that is not needed. The GETFILEINFO ioctl can
1431 * be done on the patent dir with a single open for all
1432 * files in that directory, and it also doesn't pollute the
1433 * client dcache with millions of dentries when traversing
1434 * a large filesystem. */
1435 fname = (fname == NULL ? path : fname + 1);
1436 /* retrieve needed file info */
1437 strlcpy((char *)lmd, fname, lumlen);
1438 ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
1442 if (errno == ENOTTY) {
1443 /* ioctl is not supported, it is not a lustre fs.
1444 * Do the regular lstat(2) instead. */
1445 ret = lstat_f(path, st);
1448 llapi_error(LLAPI_MSG_ERROR, ret,
1449 "error: %s: lstat failed for %s",
1452 } else if (errno == ENOENT) {
1454 llapi_error(LLAPI_MSG_WARN, ret,
1455 "warning: %s: %s does not exist",
1457 } else if (errno != EISDIR) {
1459 llapi_error(LLAPI_MSG_ERROR, ret,
1460 "%s ioctl failed for %s.",
1461 dir ? "LL_IOC_MDC_GETINFO" :
1462 "IOC_MDC_GETFILEINFO", path);
1465 llapi_error(LLAPI_MSG_ERROR, ret,
1466 "error: %s: IOC_MDC_GETFILEINFO failed for %s",
1473 static int llapi_semantic_traverse(char *path, int size, DIR *parent,
1474 semantic_func_t sem_init,
1475 semantic_func_t sem_fini, void *data,
1476 struct dirent64 *de)
1478 struct find_param *param = (struct find_param *)data;
1479 struct dirent64 *dent;
1487 if (!d && errno != ENOTDIR) {
1489 llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
1492 } else if (!d && !parent) {
1493 /* ENOTDIR. Open the parent dir. */
1494 p = opendir_parent(path);
1501 if (sem_init && (ret = sem_init(path, parent ?: p, &d, data, de)))
1507 while ((dent = readdir64(d)) != NULL) {
1510 if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
1513 /* Don't traverse .lustre directory */
1514 if (!(strcmp(dent->d_name, dot_lustre_name)))
1518 if ((len + dent->d_reclen + 2) > size) {
1519 llapi_err_noerrno(LLAPI_MSG_ERROR,
1520 "error: %s: string buffer is too small",
1525 strcat(path, dent->d_name);
1527 if (dent->d_type == DT_UNKNOWN) {
1528 lstat_t *st = ¶m->fp_lmd->lmd_st;
1530 rc = get_lmd_info(path, d, NULL, param->fp_lmd,
1531 param->fp_lum_size);
1533 dent->d_type = IFTODT(st->st_mode);
1540 switch (dent->d_type) {
1542 llapi_err_noerrno(LLAPI_MSG_ERROR,
1543 "error: %s: '%s' is UNKNOWN type %d",
1544 __func__, dent->d_name, dent->d_type);
1547 rc = llapi_semantic_traverse(path, size, d, sem_init,
1548 sem_fini, data, dent);
1549 if (rc != 0 && ret == 0)
1555 rc = sem_init(path, d, NULL, data, dent);
1556 if (rc < 0 && ret == 0)
1559 if (sem_fini && rc == 0)
1560 sem_fini(path, d, NULL, data, dent);
1568 sem_fini(path, parent, &d, data, de);
1577 static int param_callback(char *path, semantic_func_t sem_init,
1578 semantic_func_t sem_fini, struct find_param *param)
1580 int ret, len = strlen(path);
1583 if (len > PATH_MAX) {
1585 llapi_error(LLAPI_MSG_ERROR, ret,
1586 "Path name '%s' is too long", path);
1590 buf = (char *)malloc(PATH_MAX + 1);
1594 strlcpy(buf, path, PATH_MAX + 1);
1595 ret = common_param_init(param, buf);
1599 param->fp_depth = 0;
1601 ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
1602 sem_fini, param, NULL);
1604 find_param_fini(param);
1606 return ret < 0 ? ret : 0;
1609 int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
1611 int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
1614 llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lov name.");
1619 int llapi_file_fget_lmv_uuid(int fd, struct obd_uuid *lov_name)
1621 int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
1624 llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
1629 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
1633 fd = open(path, O_RDONLY);
1636 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
1640 rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
1646 int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lov_uuid)
1650 fd = open(path, O_RDONLY);
1653 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
1657 rc = llapi_file_fget_lmv_uuid(fd, lov_uuid);
1669 * If uuidp is NULL, return the number of available obd uuids.
1670 * If uuidp is non-NULL, then it will return the uuids of the obds. If
1671 * there are more OSTs than allocated to uuidp, then an error is returned with
1672 * the ost_count set to number of available obd uuids.
1674 static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
1675 int *ost_count, enum tgt_type type)
1677 char buf[PATH_MAX], format[32];
1678 int rc = 0, index = 0;
1679 struct obd_uuid name;
1683 /* Get the lov name */
1684 if (type == LOV_TYPE)
1685 rc = llapi_file_fget_lov_uuid(fd, &name);
1687 rc = llapi_file_fget_lmv_uuid(fd, &name);
1691 /* Now get the ost uuids */
1692 rc = get_lustre_param_path(type == LOV_TYPE ? "lov" : "lmv", name.uuid,
1693 FILTER_BY_EXACT, "target_obd", ¶m);
1697 fp = fopen(param.gl_pathv[0], "r");
1700 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
1705 snprintf(format, sizeof(format),
1706 "%%d: %%%zus", sizeof(uuidp[0].uuid) - 1);
1707 while (fgets(buf, sizeof(buf), fp) != NULL) {
1708 if (uuidp && (index < *ost_count)) {
1709 if (sscanf(buf, format, &index, uuidp[index].uuid) < 2)
1717 if (uuidp && (index > *ost_count))
1722 cfs_free_param_data(¶m);
1726 int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
1728 return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
1731 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
1736 root = opendir(mnt);
1739 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
1744 rc = ioctl(dirfd(root), LL_IOC_GETOBDCOUNT, count);
1752 /* Check if user specified value matches a real uuid. Ignore _UUID,
1753 * -osc-4ba41334, other trailing gunk in comparison.
1754 * @param real_uuid ends in "_UUID"
1755 * @param search_uuid may or may not end in "_UUID"
1757 int llapi_uuid_match(char *real_uuid, char *search_uuid)
1759 int cmplen = strlen(real_uuid);
1760 int searchlen = strlen(search_uuid);
1762 if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
1764 if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
1767 /* The UUIDs may legitimately be different lengths, if
1768 * the system was upgraded from an older version. */
1769 if (cmplen != searchlen)
1772 return (strncmp(search_uuid, real_uuid, cmplen) == 0);
1775 /* Here, param->fp_obd_uuid points to a single obduuid, the index of which is
1776 * returned in param->fp_obd_index */
1777 static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
1779 struct obd_uuid obd_uuid;
1786 if (param->fp_got_uuids)
1789 /* Get the lov/lmv name */
1790 if (param->fp_get_lmv)
1791 rc = llapi_file_fget_lmv_uuid(dirfd(dir), &obd_uuid);
1793 rc = llapi_file_fget_lov_uuid(dirfd(dir), &obd_uuid);
1795 if (rc != -ENOTTY) {
1796 llapi_error(LLAPI_MSG_ERROR, rc,
1797 "error: can't get %s name: %s",
1798 param->fp_get_lmv ? "lmv" : "lov",
1806 param->fp_got_uuids = 1;
1808 /* Now get the ost uuids */
1809 rc = get_lustre_param_path(param->fp_get_lmv ? "lmv" : "lov",
1810 obd_uuid.uuid, FILTER_BY_EXACT,
1811 "target_obd", ¶m_data);
1815 fp = fopen(param_data.gl_pathv[0], "r");
1818 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
1819 param_data.gl_pathv[0]);
1823 if (!param->fp_obd_uuid && !param->fp_quiet && !param->fp_obds_printed)
1824 llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
1825 param->fp_get_lmv ? "MDTS" : "OBDS");
1827 snprintf(format, sizeof(format),
1828 "%%d: %%%zus", sizeof(obd_uuid.uuid) - 1);
1829 while (fgets(buf, sizeof(buf), fp) != NULL) {
1832 if (sscanf(buf, format, &index, obd_uuid.uuid) < 2)
1835 if (param->fp_obd_uuid) {
1836 if (llapi_uuid_match(obd_uuid.uuid,
1837 param->fp_obd_uuid->uuid)) {
1838 param->fp_obd_index = index;
1841 } else if (!param->fp_quiet && !param->fp_obds_printed) {
1842 /* Print everything */
1843 llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
1846 param->fp_obds_printed = 1;
1850 if (param->fp_obd_uuid && (param->fp_obd_index == OBD_NOT_FOUND)) {
1851 llapi_err_noerrno(LLAPI_MSG_ERROR,
1852 "error: %s: unknown obduuid: %s",
1853 __func__, param->fp_obd_uuid->uuid);
1857 cfs_free_param_data(¶m_data);
1861 /* In this case, param->fp_obd_uuid will be an array of obduuids and
1862 * obd index for all these obduuids will be returned in
1863 * param->fp_obd_indexes */
1864 static int setup_indexes(DIR *dir, char *path, struct obd_uuid *obduuids,
1865 int num_obds, int **obdindexes, int *obdindex,
1868 int ret, obdcount, obd_valid = 0, obdnum;
1870 struct obd_uuid *uuids = NULL;
1874 if (type == LOV_TYPE)
1875 ret = get_param_lov(path, "numobd", buf, sizeof(buf));
1877 ret = get_param_lmv(path, "numobd", buf, sizeof(buf));
1881 obdcount = atoi(buf);
1882 uuids = malloc(obdcount * sizeof(struct obd_uuid));
1887 ret = llapi_get_target_uuids(dirfd(dir), uuids, &obdcount, type);
1889 if (ret == -EOVERFLOW) {
1890 struct obd_uuid *uuids_temp;
1892 uuids_temp = realloc(uuids, obdcount *
1893 sizeof(struct obd_uuid));
1894 if (uuids_temp != NULL) {
1897 goto retry_get_uuids;
1902 llapi_error(LLAPI_MSG_ERROR, ret, "get ost uuid failed");
1906 indexes = malloc(num_obds * sizeof(*obdindex));
1907 if (indexes == NULL) {
1912 for (obdnum = 0; obdnum < num_obds; obdnum++) {
1915 /* The user may have specified a simple index */
1916 i = strtol(obduuids[obdnum].uuid, &end, 0);
1917 if (end && *end == '\0' && i < obdcount) {
1918 indexes[obdnum] = i;
1921 for (i = 0; i < obdcount; i++) {
1922 if (llapi_uuid_match(uuids[i].uuid,
1923 obduuids[obdnum].uuid)) {
1924 indexes[obdnum] = i;
1930 if (i >= obdcount) {
1931 indexes[obdnum] = OBD_NOT_FOUND;
1932 llapi_err_noerrno(LLAPI_MSG_ERROR,
1933 "error: %s: unknown obduuid: %s",
1934 __func__, obduuids[obdnum].uuid);
1940 *obdindex = OBD_NOT_FOUND;
1942 *obdindex = obd_valid;
1944 *obdindexes = indexes;
1952 static int setup_target_indexes(DIR *dir, char *path, struct find_param *param)
1956 if (param->fp_mdt_uuid) {
1957 ret = setup_indexes(dir, path, param->fp_mdt_uuid,
1959 ¶m->fp_mdt_indexes,
1960 ¶m->fp_mdt_index, LMV_TYPE);
1965 if (param->fp_obd_uuid) {
1966 ret = setup_indexes(dir, path, param->fp_obd_uuid,
1968 ¶m->fp_obd_indexes,
1969 ¶m->fp_obd_index, LOV_TYPE);
1974 param->fp_got_uuids = 1;
1979 int llapi_ostlist(char *path, struct find_param *param)
1984 dir = opendir(path);
1988 ret = setup_obd_uuid(dir, path, param);
1995 * Tries to determine the default stripe attributes for a given filesystem. The
1996 * filesystem to check should be specified by fsname, or will be determined
1999 static int sattr_get_defaults(const char *const fsname,
2000 unsigned int *scount,
2001 unsigned int *ssize,
2002 unsigned int *soffset)
2008 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2009 "stripecount", val, sizeof(val));
2012 *scount = atoi(val);
2016 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2017 "stripesize", val, sizeof(val));
2024 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2025 "stripeoffset", val, sizeof(val));
2028 *soffset = atoi(val);
2035 * Tries to gather the default stripe attributes for a given filesystem. If
2036 * the attributes can be determined, they are cached for easy retreival the
2037 * next time they are needed. Only a single filesystem's attributes are
2040 static int sattr_cache_get_defaults(const char *const fsname,
2041 const char *const pathname,
2042 unsigned int *scount,
2043 unsigned int *ssize,
2044 unsigned int *soffset)
2047 char fsname[PATH_MAX + 1];
2048 unsigned int stripecount;
2049 unsigned int stripesize;
2050 unsigned int stripeoffset;
2056 char fsname_buf[PATH_MAX + 1];
2057 unsigned int tmp[3];
2059 if (fsname == NULL) {
2060 rc = llapi_search_fsname(pathname, fsname_buf);
2064 strlcpy(fsname_buf, fsname, sizeof(fsname_buf));
2067 if (strncmp(fsname_buf, cache.fsname, sizeof(fsname_buf) - 1) != 0) {
2069 * Ensure all 3 sattrs (count, size, and offset) are
2070 * successfully retrieved and stored in tmp before writing to
2073 rc = sattr_get_defaults(fsname_buf, &tmp[0], &tmp[1], &tmp[2]);
2077 cache.stripecount = tmp[0];
2078 cache.stripesize = tmp[1];
2079 cache.stripeoffset = tmp[2];
2080 strlcpy(cache.fsname, fsname_buf, sizeof(cache.fsname));
2084 *scount = cache.stripecount;
2086 *ssize = cache.stripesize;
2088 *soffset = cache.stripeoffset;
2093 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
2094 struct lov_user_ost_data_v1 *objects,
2095 int is_dir, int verbose, int depth,
2096 int raw, char *pool_name)
2098 char *prefix = is_dir ? "" : "lmm_";
2099 char *separator = "";
2102 if (is_dir && lmm_oi_seq(&lum->lmm_oi) == FID_SEQ_LOV_DEFAULT) {
2103 lmm_oi_set_seq(&lum->lmm_oi, 0);
2104 if (verbose & VERBOSE_DETAIL)
2105 llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
2108 if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
2109 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
2111 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
2112 llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic: 0x%08X\n",
2114 llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq: "LPX64"\n",
2115 lmm_oi_seq(&lum->lmm_oi));
2116 llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: "LPX64"\n",
2117 lmm_oi_id(&lum->lmm_oi));
2120 if (verbose & VERBOSE_COUNT) {
2121 if (verbose & ~VERBOSE_COUNT)
2122 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
2125 if (!raw && lum->lmm_stripe_count == 0) {
2126 unsigned int scount;
2127 rc = sattr_cache_get_defaults(NULL, path,
2131 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2134 llapi_error(LLAPI_MSG_ERROR, rc,
2135 "Cannot determine default"
2138 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2139 lum->lmm_stripe_count ==
2140 (typeof(lum->lmm_stripe_count))(-1)
2141 ? -1 : lum->lmm_stripe_count);
2144 llapi_printf(LLAPI_MSG_NORMAL, "%hd",
2145 (__s16)lum->lmm_stripe_count);
2147 separator = is_dir ? " " : "\n";
2150 if (verbose & VERBOSE_SIZE) {
2151 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2152 if (verbose & ~VERBOSE_SIZE)
2153 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
2155 if (is_dir && !raw && lum->lmm_stripe_size == 0) {
2157 rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
2160 llapi_printf(LLAPI_MSG_NORMAL, "%u", ssize);
2162 llapi_error(LLAPI_MSG_ERROR, rc,
2163 "Cannot determine default"
2166 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2167 lum->lmm_stripe_size);
2169 separator = is_dir ? " " : "\n";
2172 if ((verbose & VERBOSE_LAYOUT) && !is_dir) {
2173 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2174 if (verbose & ~VERBOSE_LAYOUT)
2175 llapi_printf(LLAPI_MSG_NORMAL, "%spattern: ",
2177 llapi_printf(LLAPI_MSG_NORMAL, "%.x", lum->lmm_pattern);
2181 if ((verbose & VERBOSE_GENERATION) && !is_dir) {
2182 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2183 if (verbose & ~VERBOSE_GENERATION)
2184 llapi_printf(LLAPI_MSG_NORMAL, "%slayout_gen: ",
2186 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2187 (int)lum->lmm_layout_gen);
2191 if (verbose & VERBOSE_OFFSET) {
2192 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2193 if (verbose & ~VERBOSE_OFFSET)
2194 llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
2197 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2198 lum->lmm_stripe_offset ==
2199 (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
2200 lum->lmm_stripe_offset);
2202 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2203 objects[0].l_ost_idx);
2204 separator = is_dir ? " " : "\n";
2207 if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
2208 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2209 if (verbose & ~VERBOSE_POOL)
2210 llapi_printf(LLAPI_MSG_NORMAL, "%spool: ",
2212 llapi_printf(LLAPI_MSG_NORMAL, "%s", pool_name);
2215 if (!is_dir || (is_dir && (verbose != VERBOSE_OBJID)))
2216 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2219 void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
2220 struct lov_user_ost_data_v1 *objects,
2221 char *path, int is_dir, int obdindex,
2222 int depth, int header, int raw)
2224 int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
2227 for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
2228 if (obdindex == objects[i].l_ost_idx) {
2236 lov_dump_user_lmm_header(lum, path, objects, is_dir, header,
2237 depth, raw, pool_name);
2239 if (!is_dir && (header & VERBOSE_OBJID) &&
2240 !(lum->lmm_pattern & LOV_PATTERN_F_RELEASED)) {
2242 llapi_printf(LLAPI_MSG_NORMAL,
2243 "\tobdidx\t\t objid\t\t objid\t\t group\n");
2245 for (i = 0; i < lum->lmm_stripe_count; i++) {
2246 int idx = objects[i].l_ost_idx;
2247 long long oid = ostid_id(&objects[i].l_ost_oi);
2248 long long gr = ostid_seq(&objects[i].l_ost_oi);
2249 if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx)) {
2251 sprintf(fmt, "%s%s%s\n",
2252 "\t%6u\t%14llu\t%#13llx\t",
2253 (fid_seq_is_rsvd(gr) ||
2254 fid_seq_is_mdt0(gr)) ?
2255 "%14llu" : "%#14llx", "%s");
2256 llapi_printf(LLAPI_MSG_NORMAL, fmt, idx, oid,
2258 obdindex == idx ? " *" : "");
2262 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2266 void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
2267 char *path, int obdindex, int depth, int verbose)
2269 struct lmv_user_mds_data *objects = lum->lum_objects;
2270 char *prefix = lum->lum_magic == LMV_USER_MAGIC ? "(Default)" : "";
2271 int i, obdstripe = 0;
2272 char *separator = "";
2274 if (obdindex != OBD_NOT_FOUND) {
2275 if (lum->lum_stripe_count == 0) {
2276 if (obdindex == lum->lum_stripe_offset)
2279 for (i = 0; i < lum->lum_stripe_count; i++) {
2280 if (obdindex == objects[i].lum_mds) {
2281 llapi_printf(LLAPI_MSG_NORMAL,
2296 /* show all information default */
2298 if (lum->lum_magic == LMV_USER_MAGIC)
2299 verbose = VERBOSE_POOL | VERBOSE_COUNT | VERBOSE_OFFSET;
2301 verbose = VERBOSE_OBJID;
2304 if (depth && path && ((verbose != VERBOSE_OBJID)))
2305 llapi_printf(LLAPI_MSG_NORMAL, "%s%s\n", prefix, path);
2307 if (verbose & VERBOSE_COUNT) {
2308 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2309 if (verbose & ~VERBOSE_COUNT)
2310 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_count: ");
2311 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2312 (int)lum->lum_stripe_count);
2313 if (verbose & VERBOSE_OFFSET)
2319 if (verbose & VERBOSE_OFFSET) {
2320 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2321 if (verbose & ~VERBOSE_OFFSET)
2322 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_offset: ");
2323 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2324 (int)lum->lum_stripe_offset);
2328 if (verbose & VERBOSE_OBJID && lum->lum_magic != LMV_USER_MAGIC) {
2329 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2330 if (obdstripe == 1 && lum->lum_stripe_count > 0)
2331 llapi_printf(LLAPI_MSG_NORMAL,
2332 "mdtidx\t\t FID[seq:oid:ver]\n");
2333 for (i = 0; i < lum->lum_stripe_count; i++) {
2334 int idx = objects[i].lum_mds;
2335 struct lu_fid *fid = &objects[i].lum_fid;
2336 if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
2337 llapi_printf(LLAPI_MSG_NORMAL,
2338 "%6u\t\t "DFID"\t\t%s\n",
2340 obdindex == idx ? " *" : "");
2345 if ((verbose & VERBOSE_POOL) && pool_name != NULL &&
2346 pool_name[0] != '\0') {
2347 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2348 if (verbose & ~VERBOSE_POOL)
2349 llapi_printf(LLAPI_MSG_NORMAL, "%slmv_pool: ",
2351 llapi_printf(LLAPI_MSG_NORMAL, "%s%c ", pool_name, ' ');
2355 if (!(verbose & VERBOSE_OBJID) || lum->lum_magic == LMV_USER_MAGIC)
2356 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2359 void llapi_lov_dump_user_lmm(struct find_param *param, char *path, int is_dir)
2363 if (param->fp_get_lmv || param->fp_get_default_lmv)
2364 magic = (__u32)param->fp_lmv_md->lum_magic;
2366 magic = *(__u32 *)¶m->fp_lmd->lmd_lmm; /* lum->lmm_magic */
2369 case LOV_USER_MAGIC_V1:
2370 lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm, NULL,
2371 param->fp_lmd->lmd_lmm.lmm_objects,
2373 param->fp_obd_index, param->fp_max_depth,
2374 param->fp_verbose, param->fp_raw);
2376 case LOV_USER_MAGIC_V3: {
2377 char pool_name[LOV_MAXPOOLNAME + 1];
2378 struct lov_user_ost_data_v1 *objects;
2379 struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
2381 strlcpy(pool_name, lmmv3->lmm_pool_name, sizeof(pool_name));
2382 objects = lmmv3->lmm_objects;
2383 lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm,
2384 pool_name[0] == '\0' ? NULL : pool_name,
2385 objects, path, is_dir,
2386 param->fp_obd_index, param->fp_max_depth,
2387 param->fp_verbose, param->fp_raw);
2391 case LMV_USER_MAGIC: {
2392 char pool_name[LOV_MAXPOOLNAME + 1];
2393 struct lmv_user_md *lum;
2395 lum = (struct lmv_user_md *)param->fp_lmv_md;
2396 strlcpy(pool_name, lum->lum_pool_name, sizeof(pool_name));
2397 lmv_dump_user_lmm(lum,
2398 pool_name[0] == '\0' ? NULL : pool_name,
2399 path, param->fp_obd_index,
2400 param->fp_max_depth, param->fp_verbose);
2404 llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic: %#x "
2405 "(expecting one of %#x %#x %#x %#x)\n",
2406 *(__u32 *)¶m->fp_lmd->lmd_lmm,
2407 LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3,
2408 LMV_USER_MAGIC, LMV_MAGIC_V1);
2413 int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
2419 fname = strrchr(path, '/');
2421 /* It should be a file (or other non-directory) */
2422 if (fname == NULL) {
2423 dname = (char *)malloc(2);
2427 fname = (char *)path;
2429 dname = (char *)malloc(fname - path + 1);
2432 strncpy(dname, path, fname - path);
2433 dname[fname - path] = '\0';
2437 fd = open(dname, O_RDONLY);
2444 strcpy((char *)lum, fname);
2445 if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
2448 if (close(fd) == -1 && rc == 0)
2455 int llapi_file_lookup(int dirfd, const char *name)
2457 struct obd_ioctl_data data = { 0 };
2462 if (dirfd < 0 || name == NULL)
2465 data.ioc_version = OBD_IOCTL_VERSION;
2466 data.ioc_len = sizeof(data);
2467 data.ioc_inlbuf1 = (char *)name;
2468 data.ioc_inllen1 = strlen(name) + 1;
2470 rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
2472 llapi_error(LLAPI_MSG_ERROR, rc,
2473 "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
2478 rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
2484 /* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
2485 * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
2487 * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
2488 * The table below gives the answers for the specified parameters (value and
2489 * sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
2490 * --------------------------------------
2491 * 1 | file > limit; sign > 0 | -1 / -1 |
2492 * 2 | file = limit; sign > 0 | -1 / -1 |
2493 * 3 | file < limit; sign > 0 | ? / 1 |
2494 * 4 | file > limit; sign = 0 | -1 / -1 |
2495 * 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
2496 * 6 | file < limit; sign = 0 | ? / -1 |
2497 * 7 | file > limit; sign < 0 | 1 / 1 |
2498 * 8 | file = limit; sign < 0 | ? / -1 |
2499 * 9 | file < limit; sign < 0 | ? / -1 |
2500 * --------------------------------------
2501 * Note: 5th actually means that the value is within the interval
2502 * (limit - margin, limit]. */
2503 static int find_value_cmp(unsigned long long file, unsigned long long limit,
2504 int sign, int negopt, unsigned long long margin,
2510 /* Drop the fraction of margin (of days). */
2511 if (file + margin <= limit)
2513 } else if (sign == 0) {
2514 if (file <= limit && file + margin > limit)
2516 else if (file + margin <= limit)
2518 } else if (sign < 0) {
2525 return negopt ? ~ret + 1 : ret;
2528 /* Check if the file time matches all the given criteria (e.g. --atime +/-N).
2529 * Return -1 or 1 if file timestamp does not or does match the given criteria
2530 * correspondingly. Return 0 if the MDS time is being checked and there are
2531 * attributes on OSTs and it is not yet clear if the timespamp matches.
2533 * If 0 is returned, we need to do another RPC to the OSTs to obtain the
2534 * updated timestamps. */
2535 static int find_time_check(lstat_t *st, struct find_param *param, int mds)
2540 /* Check if file is accepted. */
2541 if (param->fp_atime) {
2542 rc2 = find_value_cmp(st->st_atime, param->fp_atime,
2543 param->fp_asign, param->fp_exclude_atime,
2550 if (param->fp_mtime) {
2551 rc2 = find_value_cmp(st->st_mtime, param->fp_mtime,
2552 param->fp_msign, param->fp_exclude_mtime,
2557 /* If the previous check matches, but this one is not yet clear,
2558 * we should return 0 to do an RPC on OSTs. */
2563 if (param->fp_ctime) {
2564 rc2 = find_value_cmp(st->st_ctime, param->fp_ctime,
2565 param->fp_csign, param->fp_exclude_ctime,
2570 /* If the previous check matches, but this one is not yet clear,
2571 * we should return 0 to do an RPC on OSTs. */
2580 * Check whether the stripes matches the indexes user provided
2584 static int check_obd_match(struct find_param *param)
2586 lstat_t *st = ¶m->fp_lmd->lmd_st;
2587 struct lov_user_ost_data_v1 *lmm_objects;
2590 if (param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND)
2593 if (!S_ISREG(st->st_mode))
2596 /* Only those files should be accepted, which have a
2597 * stripe on the specified OST. */
2598 if (!param->fp_lmd->lmd_lmm.lmm_stripe_count)
2601 if (param->fp_lmd->lmd_lmm.lmm_magic ==
2602 LOV_USER_MAGIC_V3) {
2603 struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
2605 lmm_objects = lmmv3->lmm_objects;
2606 } else if (param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) {
2607 lmm_objects = param->fp_lmd->lmd_lmm.lmm_objects;
2609 llapi_err_noerrno(LLAPI_MSG_ERROR, "%s:Unknown magic: 0x%08X\n",
2610 __func__, param->fp_lmd->lmd_lmm.lmm_magic);
2614 for (i = 0; i < param->fp_lmd->lmd_lmm.lmm_stripe_count; i++) {
2615 for (j = 0; j < param->fp_num_obds; j++) {
2616 if (param->fp_obd_indexes[j] ==
2617 lmm_objects[i].l_ost_idx) {
2618 if (param->fp_exclude_obd)
2625 if (param->fp_exclude_obd)
2631 static int check_mdt_match(struct find_param *param)
2635 if (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND)
2638 /* FIXME: For striped dir, we should get stripe information and check */
2639 for (i = 0; i < param->fp_num_mdts; i++) {
2640 if (param->fp_mdt_indexes[i] == param->fp_file_mdt_index)
2641 return !param->fp_exclude_mdt;
2644 if (param->fp_exclude_mdt)
2651 * Check whether the obd is active or not, if it is
2652 * not active, just print the object affected by this
2655 static int print_failed_tgt(struct find_param *param, char *path, int type)
2657 struct obd_statfs stat_buf;
2658 struct obd_uuid uuid_buf;
2661 LASSERT(type == LL_STATFS_LOV || type == LL_STATFS_LMV);
2663 memset(&stat_buf, 0, sizeof(struct obd_statfs));
2664 memset(&uuid_buf, 0, sizeof(struct obd_uuid));
2665 ret = llapi_obd_statfs(path, type,
2666 param->fp_obd_index, &stat_buf,
2669 llapi_printf(LLAPI_MSG_NORMAL,
2670 "obd_uuid: %s failed %s ",
2671 param->fp_obd_uuid->uuid,
2678 static int cb_find_init(char *path, DIR *parent, DIR **dirp,
2679 void *data, struct dirent64 *de)
2681 struct find_param *param = (struct find_param *)data;
2682 DIR *dir = dirp == NULL ? NULL : *dirp;
2683 int decision = 1; /* 1 is accepted; -1 is rejected. */
2684 lstat_t *st = ¶m->fp_lmd->lmd_st;
2686 int checked_type = 0;
2689 LASSERT(parent != NULL || dir != NULL);
2691 param->fp_lmd->lmd_lmm.lmm_stripe_count = 0;
2693 /* If a regular expression is presented, make the initial decision */
2694 if (param->fp_pattern != NULL) {
2695 char *fname = strrchr(path, '/');
2696 fname = (fname == NULL ? path : fname + 1);
2697 ret = fnmatch(param->fp_pattern, fname, 0);
2698 if ((ret == FNM_NOMATCH && !param->fp_exclude_pattern) ||
2699 (ret == 0 && param->fp_exclude_pattern))
2703 /* See if we can check the file type from the dirent. */
2704 if (param->fp_type != 0 && de != NULL && de->d_type != DT_UNKNOWN) {
2707 if (DTTOIF(de->d_type) == param->fp_type) {
2708 if (param->fp_exclude_type)
2711 if (!param->fp_exclude_type)
2718 /* Request MDS for the stat info if some of these parameters need
2719 * to be compared. */
2720 if (param->fp_obd_uuid || param->fp_mdt_uuid ||
2721 param->fp_check_uid || param->fp_check_gid ||
2722 param->fp_atime || param->fp_mtime || param->fp_ctime ||
2723 param->fp_check_pool || param->fp_check_size ||
2724 param->fp_check_stripe_count || param->fp_check_stripe_size ||
2725 param->fp_check_layout)
2728 if (param->fp_type != 0 && checked_type == 0)
2731 if (decision == 0) {
2732 ret = get_lmd_info(path, parent, dir, param->fp_lmd,
2733 param->fp_lum_size);
2734 if (ret == 0 && param->fp_lmd->lmd_lmm.lmm_magic == 0 &&
2735 (param->fp_check_pool || param->fp_check_stripe_count ||
2736 param->fp_check_stripe_size || param->fp_check_layout)) {
2737 struct lov_user_md *lmm = ¶m->fp_lmd->lmd_lmm;
2739 /* We need to "fake" the "use the default" values
2740 * since the lmm struct is zeroed out at this point. */
2741 lmm->lmm_magic = LOV_USER_MAGIC_V1;
2742 lmm->lmm_pattern = 0xFFFFFFFF;
2744 ostid_set_seq(&lmm->lmm_oi,
2745 FID_SEQ_LOV_DEFAULT);
2746 lmm->lmm_stripe_size = 0;
2747 lmm->lmm_stripe_count = 0;
2748 lmm->lmm_stripe_offset = -1;
2750 if (ret == 0 && param->fp_mdt_uuid != NULL) {
2752 ret = llapi_file_fget_mdtidx(dirfd(dir),
2753 ¶m->fp_file_mdt_index);
2754 } else if (S_ISREG(st->st_mode)) {
2757 /* FIXME: we could get the MDT index from the
2758 * file's FID in lmd->lmd_lmm.lmm_oi without
2759 * opening the file, once we are sure that
2760 * LFSCK2 (2.6) has fixed up pre-2.0 LOV EAs.
2761 * That would still be an ioctl() to map the
2762 * FID to the MDT, but not an open RPC. */
2763 fd = open(path, O_RDONLY);
2765 ret = llapi_file_fget_mdtidx(fd,
2766 ¶m->fp_file_mdt_index);
2772 /* For a special file, we assume it resides on
2773 * the same MDT as the parent directory. */
2774 ret = llapi_file_fget_mdtidx(dirfd(parent),
2775 ¶m->fp_file_mdt_index);
2788 if (param->fp_type && !checked_type) {
2789 if ((st->st_mode & S_IFMT) == param->fp_type) {
2790 if (param->fp_exclude_type)
2793 if (!param->fp_exclude_type)
2799 if (param->fp_obd_uuid || param->fp_mdt_uuid) {
2800 if (lustre_fs && param->fp_got_uuids &&
2801 param->fp_dev != st->st_dev) {
2802 /* A lustre/lustre mount point is crossed. */
2803 param->fp_got_uuids = 0;
2804 param->fp_obds_printed = 0;
2805 param->fp_mdt_index = OBD_NOT_FOUND;
2806 param->fp_obd_index = OBD_NOT_FOUND;
2809 if (lustre_fs && !param->fp_got_uuids) {
2810 ret = setup_target_indexes(dir ? dir : parent, path,
2815 param->fp_dev = st->st_dev;
2816 } else if (!lustre_fs && param->fp_got_uuids) {
2817 /* A lustre/non-lustre mount point is crossed. */
2818 param->fp_got_uuids = 0;
2819 param->fp_mdt_index = OBD_NOT_FOUND;
2820 param->fp_obd_index = OBD_NOT_FOUND;
2824 if (param->fp_check_stripe_size) {
2825 decision = find_value_cmp(
2826 param->fp_lmd->lmd_lmm.lmm_stripe_size,
2827 param->fp_stripe_size,
2828 param->fp_stripe_size_sign,
2829 param->fp_exclude_stripe_size,
2830 param->fp_stripe_size_units, 0);
2835 if (param->fp_check_stripe_count) {
2836 decision = find_value_cmp(
2837 param->fp_lmd->lmd_lmm.lmm_stripe_count,
2838 param->fp_stripe_count,
2839 param->fp_stripe_count_sign,
2840 param->fp_exclude_stripe_count, 1, 0);
2845 if (param->fp_check_layout) {
2848 found = (param->fp_lmd->lmd_lmm.lmm_pattern & param->fp_layout);
2849 if ((param->fp_lmd->lmd_lmm.lmm_pattern == 0xFFFFFFFF) ||
2850 (found && param->fp_exclude_layout) ||
2851 (!found && !param->fp_exclude_layout)) {
2857 /* If an OBD UUID is specified but none matches, skip this file. */
2858 if ((param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND) ||
2859 (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND))
2862 /* If an OST or MDT UUID is given, and some OST matches,
2864 if (param->fp_obd_index != OBD_NOT_FOUND ||
2865 param->fp_mdt_index != OBD_NOT_FOUND) {
2866 if (param->fp_obd_uuid) {
2867 if (check_obd_match(param)) {
2868 /* If no mdtuuid is given, we are done.
2869 * Otherwise, fall through to the mdtuuid
2871 if (!param->fp_mdt_uuid)
2878 if (param->fp_mdt_uuid) {
2879 if (check_mdt_match(param))
2886 if (param->fp_check_uid) {
2887 if (st->st_uid == param->fp_uid) {
2888 if (param->fp_exclude_uid)
2891 if (!param->fp_exclude_uid)
2896 if (param->fp_check_gid) {
2897 if (st->st_gid == param->fp_gid) {
2898 if (param->fp_exclude_gid)
2901 if (!param->fp_exclude_gid)
2906 if (param->fp_check_pool) {
2907 struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
2909 /* empty requested pool is taken as no pool search => V1 */
2910 if (((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) &&
2911 (param->fp_poolname[0] == '\0')) ||
2912 ((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
2913 (strncmp(lmmv3->lmm_pool_name,
2914 param->fp_poolname, LOV_MAXPOOLNAME) == 0)) ||
2915 ((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
2916 (strcmp(param->fp_poolname, "*") == 0))) {
2917 if (param->fp_exclude_pool)
2920 if (!param->fp_exclude_pool)
2925 /* Check the time on mds. */
2927 if (param->fp_atime || param->fp_mtime || param->fp_ctime) {
2930 for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
2931 param->fp_lmd->lmd_lmm.lmm_stripe_count)
2933 decision = find_time_check(st, param, for_mds);
2938 /* If file still fits the request, ask ost for updated info.
2939 The regular stat is almost of the same speed as some new
2940 'glimpse-size-ioctl'. */
2942 if (param->fp_check_size && S_ISREG(st->st_mode) &&
2943 param->fp_lmd->lmd_lmm.lmm_stripe_count)
2946 if (param->fp_check_size && S_ISDIR(st->st_mode))
2950 /* For regular files with the stripe the decision may have not
2951 * been taken yet if *time or size is to be checked. */
2952 if (param->fp_obd_index != OBD_NOT_FOUND)
2953 print_failed_tgt(param, path, LL_STATFS_LOV);
2955 if (param->fp_mdt_index != OBD_NOT_FOUND)
2956 print_failed_tgt(param, path, LL_STATFS_LMV);
2959 ret = fstat_f(dirfd(dir), st);
2960 else if (de != NULL)
2961 ret = fstatat_f(dirfd(parent), de->d_name, st,
2962 AT_SYMLINK_NOFOLLOW);
2964 ret = lstat_f(path, st);
2967 if (errno == ENOENT) {
2968 llapi_error(LLAPI_MSG_ERROR, -ENOENT,
2969 "warning: %s: %s does not exist",
2974 llapi_error(LLAPI_MSG_ERROR, ret,
2975 "%s: IOC_LOV_GETINFO on %s failed",
2981 /* Check the time on osc. */
2982 decision = find_time_check(st, param, 0);
2987 if (param->fp_check_size)
2988 decision = find_value_cmp(st->st_size, param->fp_size,
2989 param->fp_size_sign,
2990 param->fp_exclude_size,
2991 param->fp_size_units, 0);
2993 if (decision != -1) {
2994 llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
2995 if (param->fp_zero_end)
2996 llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
2998 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3002 /* Do not get down anymore? */
3003 if (param->fp_depth == param->fp_max_depth)
3011 static int cb_migrate_mdt_init(char *path, DIR *parent, DIR **dirp,
3012 void *param_data, struct dirent64 *de)
3014 struct find_param *param = (struct find_param *)param_data;
3015 DIR *tmp_parent = parent;
3016 char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
3018 struct obd_ioctl_data data = { 0 };
3025 LASSERT(parent != NULL || dirp != NULL);
3029 if (parent == NULL) {
3030 tmp_parent = opendir_parent(path);
3031 if (tmp_parent == NULL) {
3034 llapi_error(LLAPI_MSG_ERROR, ret,
3035 "can not open %s", path);
3040 fd = dirfd(tmp_parent);
3042 path_copy = strdup(path);
3043 filename = basename(path_copy);
3044 data.ioc_inlbuf1 = (char *)filename;
3045 data.ioc_inllen1 = strlen(filename) + 1;
3046 data.ioc_inlbuf2 = (char *)¶m->fp_mdt_index;
3047 data.ioc_inllen2 = sizeof(param->fp_mdt_index);
3048 ret = obd_ioctl_pack(&data, &rawbuf, sizeof(raw));
3050 llapi_error(LLAPI_MSG_ERROR, ret,
3051 "llapi_obd_statfs: error packing ioctl data");
3056 ret = ioctl(fd, LL_IOC_MIGRATE, rawbuf);
3058 if (errno == EBUSY && !retry) {
3059 /* because migrate may not be able to lock all involved
3060 * objects in order, for some of them it try lock, while
3061 * there may be conflicting COS locks and cause migrate
3062 * fail with EBUSY, hope a sync() could cause
3063 * transaction commit and release these COS locks. */
3069 fprintf(stderr, "%s migrate failed: %s (%d)\n",
3070 path, strerror(-ret), ret);
3072 } else if (param->fp_verbose & VERBOSE_DETAIL) {
3073 fprintf(stdout, "migrate %s to MDT%d\n",
3074 path, param->fp_mdt_index);
3079 /* If the directory is being migration, we need
3080 * close the directory after migration,
3081 * so the old directory cache will be cleanup
3082 * on the client side, and re-open to get the
3083 * new directory handle */
3084 *dirp = opendir(path);
3085 if (*dirp == NULL) {
3087 llapi_error(LLAPI_MSG_ERROR, ret,
3088 "%s: Failed to open '%s'", __func__, path);
3093 closedir(tmp_parent);
3100 int llapi_migrate_mdt(char *path, struct find_param *param)
3102 return param_callback(path, cb_migrate_mdt_init, cb_common_fini, param);
3105 int llapi_mv(char *path, struct find_param *param)
3107 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 53, 0)
3108 static bool printed;
3111 llapi_error(LLAPI_MSG_ERROR, -ESTALE,
3112 "llapi_mv() is deprecated, use llapi_migrate_mdt()\n");
3116 return llapi_migrate_mdt(path, param);
3119 int llapi_find(char *path, struct find_param *param)
3121 return param_callback(path, cb_find_init, cb_common_fini, param);
3125 * Get MDT number that the file/directory inode referenced
3126 * by the open fd resides on.
3127 * Return 0 and mdtidx on success, or -ve errno.
3129 int llapi_file_fget_mdtidx(int fd, int *mdtidx)
3131 if (ioctl(fd, LL_IOC_GET_MDTIDX, mdtidx) < 0)
3136 static int cb_get_mdt_index(char *path, DIR *parent, DIR **dirp, void *data,
3137 struct dirent64 *de)
3139 struct find_param *param = (struct find_param *)data;
3140 DIR *d = dirp == NULL ? NULL : *dirp;
3144 LASSERT(parent != NULL || d != NULL);
3147 ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
3148 } else /* if (parent) */ {
3151 fd = open(path, O_RDONLY | O_NOCTTY);
3153 ret = llapi_file_fget_mdtidx(fd, &mdtidx);
3161 if (ret == -ENODATA) {
3162 if (!param->fp_obd_uuid)
3163 llapi_printf(LLAPI_MSG_NORMAL,
3164 "'%s' has no stripe info\n", path);
3166 } else if (ret == -ENOENT) {
3167 llapi_error(LLAPI_MSG_WARN, ret,
3168 "warning: %s: '%s' does not exist",
3171 } else if (ret == -ENOTTY) {
3172 llapi_error(LLAPI_MSG_ERROR, ret,
3173 "%s: '%s' not on a Lustre fs",
3176 llapi_error(LLAPI_MSG_ERROR, ret,
3177 "error: %s: '%s' failed get_mdtidx",
3183 if (param->fp_quiet || !(param->fp_verbose & VERBOSE_DETAIL))
3184 llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
3186 llapi_printf(LLAPI_MSG_NORMAL, "%s\nmdt_index:\t%d\n",
3190 /* Do not go down anymore? */
3191 if (param->fp_depth == param->fp_max_depth)
3199 static int cb_getstripe(char *path, DIR *parent, DIR **dirp, void *data,
3200 struct dirent64 *de)
3202 struct find_param *param = (struct find_param *)data;
3203 DIR *d = dirp == NULL ? NULL : *dirp;
3206 LASSERT(parent != NULL || d != NULL);
3208 if (param->fp_obd_uuid) {
3209 param->fp_quiet = 1;
3210 ret = setup_obd_uuid(d ? d : parent, path, param);
3216 if (param->fp_get_lmv || param->fp_get_default_lmv) {
3217 ret = cb_get_dirstripe(path, d, param);
3219 ret = ioctl(dirfd(d), LL_IOC_LOV_GETSTRIPE,
3220 (void *)¶m->fp_lmd->lmd_lmm);
3223 } else if (parent && !param->fp_get_lmv && !param->fp_get_default_lmv) {
3224 char *fname = strrchr(path, '/');
3225 fname = (fname == NULL ? path : fname + 1);
3227 strlcpy((char *)¶m->fp_lmd->lmd_lmm, fname,
3228 param->fp_lum_size);
3230 ret = ioctl(dirfd(parent), IOC_MDC_GETFILESTRIPE,
3231 (void *)¶m->fp_lmd->lmd_lmm);
3237 if (errno == ENODATA && d != NULL) {
3238 /* We need to "fake" the "use the default" values
3239 * since the lmm struct is zeroed out at this point.
3240 * The magic needs to be set in order to satisfy
3241 * a check later on in the code path.
3242 * The object_seq needs to be set for the "(Default)"
3243 * prefix to be displayed. */
3244 if (param->fp_get_default_lmv) {
3245 struct lmv_user_md *lum = param->fp_lmv_md;
3247 lum->lum_magic = LMV_USER_MAGIC;
3248 lum->lum_stripe_count = 0;
3249 lum->lum_stripe_offset = -1;
3251 } else if (param->fp_get_lmv) {
3252 struct lmv_user_md *lum = param->fp_lmv_md;
3255 ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
3258 lum->lum_magic = LMV_MAGIC_V1;
3259 lum->lum_stripe_count = 0;
3260 lum->lum_stripe_offset = mdtidx;
3263 struct lov_user_md *lmm =
3264 ¶m->fp_lmd->lmd_lmm;
3266 lmm->lmm_magic = LOV_USER_MAGIC_V1;
3268 ostid_set_seq(&lmm->lmm_oi,
3269 FID_SEQ_LOV_DEFAULT);
3270 lmm->lmm_stripe_count = 0;
3271 lmm->lmm_stripe_size = 0;
3272 lmm->lmm_stripe_offset = -1;
3275 } else if (errno == ENODATA && parent != NULL) {
3276 if (!param->fp_obd_uuid && !param->fp_mdt_uuid)
3277 llapi_printf(LLAPI_MSG_NORMAL,
3278 "%s has no stripe info\n", path);
3280 } else if (errno == ENOENT) {
3281 llapi_error(LLAPI_MSG_WARN, -ENOENT,
3282 "warning: %s: %s does not exist",
3285 } else if (errno == ENOTTY) {
3287 llapi_error(LLAPI_MSG_ERROR, ret,
3288 "%s: '%s' not on a Lustre fs?",
3293 llapi_error(LLAPI_MSG_ERROR, ret,
3294 "error: %s: %s failed for %s",
3295 __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
3296 "IOC_MDC_GETFILESTRIPE", path);
3303 if (!(param->fp_verbose & VERBOSE_MDTINDEX))
3304 llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
3307 /* Do not get down anymore? */
3308 if (param->fp_depth == param->fp_max_depth)
3316 int llapi_getstripe(char *path, struct find_param *param)
3318 return param_callback(path, (param->fp_verbose & VERBOSE_MDTINDEX) ?
3319 cb_get_mdt_index : cb_getstripe,
3320 cb_common_fini, param);
3323 int llapi_obd_statfs(char *path, __u32 type, __u32 index,
3324 struct obd_statfs *stat_buf,
3325 struct obd_uuid *uuid_buf)
3328 char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
3330 struct obd_ioctl_data data = { 0 };
3333 data.ioc_inlbuf1 = (char *)&type;
3334 data.ioc_inllen1 = sizeof(__u32);
3335 data.ioc_inlbuf2 = (char *)&index;
3336 data.ioc_inllen2 = sizeof(__u32);
3337 data.ioc_pbuf1 = (char *)stat_buf;
3338 data.ioc_plen1 = sizeof(struct obd_statfs);
3339 data.ioc_pbuf2 = (char *)uuid_buf;
3340 data.ioc_plen2 = sizeof(struct obd_uuid);
3342 rc = obd_ioctl_pack(&data, &rawbuf, sizeof(raw));
3344 llapi_error(LLAPI_MSG_ERROR, rc,
3345 "llapi_obd_statfs: error packing ioctl data");
3349 fd = open(path, O_RDONLY);
3350 if (errno == EISDIR)
3351 fd = open(path, O_DIRECTORY | O_RDONLY);
3354 rc = errno ? -errno : -EBADF;
3355 llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
3357 /* If we can't even open a file on the filesystem (e.g. with
3358 * -ESHUTDOWN), force caller to exit or it will loop forever. */
3361 rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
3363 rc = errno ? -errno : -EINVAL;
3369 #define MAX_STRING_SIZE 128
3371 int llapi_ping(char *obd_type, char *obd_name)
3377 rc = cfs_get_param_paths(&path, "%s/%s/ping",
3378 obd_type, obd_name);
3382 fd = open(path.gl_pathv[0], O_WRONLY);
3385 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s",
3390 /* The purpose is to send a byte as a ping, whatever this byte is. */
3391 /* coverity[uninit_use_in_call] */
3392 rc = write(fd, buf, 1);
3400 cfs_free_param_data(&path);
3404 int llapi_target_iterate(int type_num, char **obd_type,
3405 void *args, llapi_cb_t cb)
3407 char buf[MAX_STRING_SIZE];
3412 rc = cfs_get_param_paths(¶m, "devices");
3416 fp = fopen(param.gl_pathv[0], "r");
3419 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
3424 while (fgets(buf, sizeof(buf), fp) != NULL) {
3425 char *obd_type_name = NULL;
3426 char *obd_name = NULL;
3427 char *obd_uuid = NULL;
3429 struct obd_statfs osfs_buffer;
3431 while(bufp[0] == ' ')
3434 for(i = 0; i < 3; i++) {
3435 obd_type_name = strsep(&bufp, " ");
3437 obd_name = strsep(&bufp, " ");
3438 obd_uuid = strsep(&bufp, " ");
3440 memset(&osfs_buffer, 0, sizeof (osfs_buffer));
3442 for (i = 0; i < type_num; i++) {
3443 if (strcmp(obd_type_name, obd_type[i]) != 0)
3446 cb(obd_type_name, obd_name, obd_uuid, args);
3451 cfs_free_param_data(¶m);
3455 static void do_target_check(char *obd_type_name, char *obd_name,
3456 char *obd_uuid, void *args)
3460 rc = llapi_ping(obd_type_name, obd_name);
3461 if (rc == ENOTCONN) {
3462 llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
3464 llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
3466 llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
3470 int llapi_target_check(int type_num, char **obd_type, char *dir)
3472 return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
3475 #undef MAX_STRING_SIZE
3477 /* Is this a lustre fs? */
3478 int llapi_is_lustre_mnttype(const char *type)
3480 return (strcmp(type, "lustre") == 0 || strcmp(type,"lustre_lite") == 0);
3483 /* Is this a lustre client fs? */
3484 int llapi_is_lustre_mnt(struct mntent *mnt)
3486 return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
3487 strstr(mnt->mnt_fsname, ":/") != NULL);
3490 int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
3495 root = opendir(mnt);
3498 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
3502 rc = ioctl(dirfd(root), OBD_IOC_QUOTACTL, qctl);
3513 #include <sys/wait.h>
3517 static int rmtacl_notify(int ops)
3521 int found = 0, fd = 0, rc = 0;
3523 fp = setmntent(MOUNTED, "r");
3526 llapi_error(LLAPI_MSG_ERROR, rc,
3527 "error setmntent(%s)", MOUNTED);
3532 mnt = getmntent(fp);
3536 if (!llapi_is_lustre_mnt(mnt))
3539 fd = open(mnt->mnt_dir, O_RDONLY | O_DIRECTORY);
3542 llapi_error(LLAPI_MSG_ERROR, rc,
3543 "Can't open '%s'", mnt->mnt_dir);
3547 rc = ioctl(fd, LL_IOC_RMTACL, ops);
3551 llapi_error(LLAPI_MSG_ERROR, rc,
3552 "ioctl RMTACL on '%s' err %d",
3562 return ((rc != 0) ? rc : found);
3565 static char *next_token(char *p, int div)
3571 while (*p && *p != ':' && !isspace(*p))
3574 while (*p == ':' || isspace(*p))
3577 return *p ? p : NULL;
3580 static int rmtacl_name2id(char *name, int is_user)
3585 pw = getpwnam(name);
3589 return (int)(pw->pw_uid);
3593 gr = getgrnam(name);
3597 return (int)(gr->gr_gid);
3601 static int isodigit(int c)
3603 return (c >= '0' && c <= '7') ? 1 : 0;
3607 * Whether the name is just digits string (uid/gid) already or not.
3612 static int str_is_id(char *str)
3619 if (*str == 'x' || *str == 'X') { /* for Hex. */
3620 if (!isxdigit(*(++str)))
3623 while (isxdigit(*(++str)));
3624 } else if (isodigit(*str)) { /* for Oct. */
3625 while (isodigit(*(++str)));
3627 } else if (isdigit(*str)) { /* for Dec. */
3628 while (isdigit(*(++str)));
3631 return (*str == 0) ? 1 : 0;
3641 #define RMTACL_OPTNAME(name) name, sizeof(name) - 1
3643 static rmtacl_name_t rmtacl_namelist[] = {
3644 { RMTACL_OPTNAME("user:"), 1, 0 },
3645 { RMTACL_OPTNAME("group:"), 0, 0 },
3646 { RMTACL_OPTNAME("default:user:"), 1, 0 },
3647 { RMTACL_OPTNAME("default:group:"), 0, 0 },
3648 /* for --tabular option */
3649 { RMTACL_OPTNAME("user"), 1, 1 },
3650 { RMTACL_OPTNAME("group"), 0, 1 },
3654 static int rgetfacl_output(char *str)
3656 char *start = NULL, *end = NULL;
3657 int is_user = 0, n, id;
3664 for (rn = rmtacl_namelist; rn->name; rn++) {
3665 if(strncmp(str, rn->name, rn->length) == 0) {
3666 if (!rn->next_token)
3667 start = str + rn->length;
3669 start = next_token(str + rn->length, 0);
3670 is_user = rn->is_user;
3675 end = next_token(start, 1);
3676 if (end == NULL || start == end) {
3677 n = printf("%s", str);
3683 id = rmtacl_name2id(start, is_user);
3684 if (id == INVALID_ID) {
3685 if (str_is_id(start)) {
3687 n = printf("%s", str);
3690 } else if ((id == NOBODY_UID && is_user) ||
3691 (id == NOBODY_GID && !is_user)) {
3693 n = printf("%s", str);
3697 n = printf("%s%d%s", str, id, end);
3702 static int child_status(int status)
3704 return WIFEXITED(status) ? WEXITSTATUS(status) : -1;
3707 static int do_rmtacl(int argc, char *argv[], int ops, int (output_func)(char *))
3710 int fd[2], status, rc;
3717 llapi_error(LLAPI_MSG_ERROR, rc, "Can't create pipe");
3724 llapi_error(LLAPI_MSG_ERROR, rc, "Can't fork");
3729 /* child process redirects its output. */
3732 if (dup2(fd[1], 1) < 0) {
3734 llapi_error(LLAPI_MSG_ERROR, rc,
3735 "Can't dup2 %d", fd[1]);
3745 status = rmtacl_notify(ops);
3749 exit(execvp(argv[0], argv));
3752 /* the following is parent process */
3753 fp = fdopen(fd[0], "r");
3756 llapi_error(LLAPI_MSG_ERROR, rc, "fdopen %d failed", fd[0]);
3762 while (fgets(buf, PIPE_BUF, fp) != NULL) {
3763 if (output_func(buf) < 0)
3764 fprintf(stderr, "WARNING: unexpected error!\n[%s]\n",
3770 if (waitpid(pid, &status, 0) < 0) {
3772 llapi_error(LLAPI_MSG_ERROR, rc, "waitpid %d failed", pid);
3776 return child_status(status);
3779 int llapi_lsetfacl(int argc, char *argv[])
3781 return do_rmtacl(argc, argv, RMT_LSETFACL, NULL);
3784 int llapi_lgetfacl(int argc, char *argv[])
3786 return do_rmtacl(argc, argv, RMT_LGETFACL, NULL);
3789 int llapi_rsetfacl(int argc, char *argv[])
3791 return do_rmtacl(argc, argv, RMT_RSETFACL, NULL);
3794 int llapi_rgetfacl(int argc, char *argv[])
3796 return do_rmtacl(argc, argv, RMT_RGETFACL, rgetfacl_output);
3799 int llapi_cp(int argc, char *argv[])
3803 rc = rmtacl_notify(RMT_RSETFACL);
3807 exit(execvp(argv[0], argv));
3810 int llapi_ls(int argc, char *argv[])
3814 rc = rmtacl_notify(RMT_LGETFACL);
3818 exit(execvp(argv[0], argv));
3821 /* Print mdtname 'name' into 'buf' using 'format'. Add -MDT0000 if needed.
3822 * format must have %s%s, buf must be > 16
3823 * Eg: if name = "lustre-MDT0000", "lustre", or "lustre-MDT0000_UUID"
3824 * then buf = "lustre-MDT0000"
3826 static int get_mdtname(char *name, char *format, char *buf)
3828 char suffix[]="-MDT0000";
3829 int len = strlen(name);
3831 if ((len > 5) && (strncmp(name + len - 5, "_UUID", 5) == 0)) {
3832 name[len - 5] = '\0';
3837 if ((len <= 16) && strncmp(name + len - 8, "-MDT", 4) == 0) {
3840 /* Not enough room to add suffix */
3841 llapi_err_noerrno(LLAPI_MSG_ERROR,
3842 "MDT name too long |%s|", name);
3847 return sprintf(buf, format, name, suffix);
3850 /** ioctl on filsystem root, with mdtindex sent as data
3851 * \param mdtname path, fsname, or mdtname (lutre-MDT0004)
3852 * \param mdtidxp pointer to integer within data to be filled in with the
3853 * mdt index (0 if no mdt is specified). NULL won't be filled.
3855 int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
3863 /* Take path, fsname, or MDTname. Assume MDT0000 in the former cases.
3864 Open root and parse mdt index. */
3865 if (mdtname[0] == '/') {
3867 rc = get_root_path(WANT_FD | want_error, NULL, &fd,
3868 (char *)mdtname, -1);
3870 if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
3872 ptr = fsname + strlen(fsname) - 8;
3874 index = strtol(ptr + 4, NULL, 10);
3875 rc = get_root_path(WANT_FD | want_error, fsname, &fd, NULL, -1);
3879 llapi_err_noerrno(LLAPI_MSG_ERROR,
3880 "Can't open %s: %d\n", mdtname, rc);
3887 rc = ioctl(fd, opc, data);
3892 if (rc && want_error)
3893 llapi_error(LLAPI_MSG_ERROR, rc, "ioctl %d err %d", opc, rc);
3899 /****** Changelog API ********/
3901 static int changelog_ioctl(const char *mdtname, int opc, int id,
3902 long long recno, int flags)
3904 struct ioc_changelog data;
3908 data.icc_recno = recno;
3909 data.icc_flags = flags;
3910 idx = (int *)(&data.icc_mdtindex);
3912 return root_ioctl(mdtname, opc, &data, idx, WANT_ERROR);
3915 #define CHANGELOG_PRIV_MAGIC 0xCA8E1080
3916 struct changelog_private {
3918 enum changelog_send_flag flags;
3919 struct lustre_kernelcomm kuc;
3922 /** Start reading from a changelog
3923 * @param priv Opaque private control structure
3924 * @param flags Start flags (e.g. CHANGELOG_FLAG_BLOCK)
3925 * @param device Report changes recorded on this MDT
3926 * @param startrec Report changes beginning with this record number
3927 * (just call llapi_changelog_fini when done; don't need an endrec)
3929 int llapi_changelog_start(void **priv, enum changelog_send_flag flags,
3930 const char *device, long long startrec)
3932 struct changelog_private *cp;
3936 /* Set up the receiver control struct */
3937 cp = calloc(1, sizeof(*cp));
3941 cp->magic = CHANGELOG_PRIV_MAGIC;
3944 /* Set up the receiver */
3945 rc = libcfs_ukuc_start(&cp->kuc, 0 /* no group registration */, 0);
3951 /* CHANGELOG_FLAG_JOBID will eventually become mandatory. Display a
3952 * warning if it's missing. */
3953 if (!(flags & CHANGELOG_FLAG_JOBID) && !warned) {
3954 llapi_err_noerrno(LLAPI_MSG_WARN, "warning: %s() called "
3955 "w/o CHANGELOG_FLAG_JOBID", __func__);
3959 /* Tell the kernel to start sending */
3960 rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
3962 /* Only the kernel reference keeps the write side open */
3963 close(cp->kuc.lk_wfd);
3964 cp->kuc.lk_wfd = LK_NOFD;
3966 /* frees and clears priv */
3967 llapi_changelog_fini(priv);
3978 /** Finish reading from a changelog */
3979 int llapi_changelog_fini(void **priv)
3981 struct changelog_private *cp = (struct changelog_private *)*priv;
3983 if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
3986 libcfs_ukuc_stop(&cp->kuc);
3993 * Convert all records to a same format according to the caller's wishes.
3994 * Default is CLF_VERSION | CLF_RENAME.
3995 * Add CLF_JOBID if explicitely requested.
3997 * \param rec The record to remap. It is expected to be big enough to
3998 * properly handle the final format.
3999 * \return 1 if anything changed. 0 otherwise.
4001 /** Read the next changelog entry
4002 * @param priv Opaque private control structure
4003 * @param rech Changelog record handle; record will be allocated here
4004 * @return 0 valid message received; rec is set
4008 #define DEFAULT_RECORD_FMT (CLF_VERSION | CLF_RENAME)
4009 int llapi_changelog_recv(void *priv, struct changelog_rec **rech)
4011 struct changelog_private *cp = (struct changelog_private *)priv;
4012 struct kuc_hdr *kuch;
4013 enum changelog_rec_flags rec_fmt = DEFAULT_RECORD_FMT;
4016 if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
4020 kuch = malloc(KUC_CHANGELOG_MSG_MAXSIZE);
4024 if (cp->flags & CHANGELOG_FLAG_JOBID)
4025 rec_fmt |= CLF_JOBID;
4028 rc = libcfs_ukuc_msg_get(&cp->kuc, (char *)kuch,
4029 KUC_CHANGELOG_MSG_MAXSIZE,
4030 KUC_TRANSPORT_CHANGELOG);
4034 if ((kuch->kuc_transport != KUC_TRANSPORT_CHANGELOG) ||
4035 ((kuch->kuc_msgtype != CL_RECORD) &&
4036 (kuch->kuc_msgtype != CL_EOF))) {
4037 llapi_err_noerrno(LLAPI_MSG_ERROR,
4038 "Unknown changelog message type %d:%d\n",
4039 kuch->kuc_transport, kuch->kuc_msgtype);
4044 if (kuch->kuc_msgtype == CL_EOF) {
4045 if (cp->flags & CHANGELOG_FLAG_FOLLOW) {
4054 /* Our message is a changelog_rec. Use pointer math to skip
4055 * kuch_hdr and point directly to the message payload. */
4056 *rech = (struct changelog_rec *)(kuch + 1);
4057 changelog_remap_rec(*rech, rec_fmt);
4067 /** Release the changelog record when done with it. */
4068 int llapi_changelog_free(struct changelog_rec **rech)
4071 /* We allocated memory starting at the kuc_hdr, but passed
4072 * the consumer a pointer to the payload.
4073 * Use pointer math to get back to the header.
4075 struct kuc_hdr *kuch = (struct kuc_hdr *)*rech - 1;
4082 int llapi_changelog_clear(const char *mdtname, const char *idstr,
4088 llapi_err_noerrno(LLAPI_MSG_ERROR,
4089 "can't purge negative records\n");
4093 id = strtol(idstr + strlen(CHANGELOG_USER_PREFIX), NULL, 10);
4094 if ((id == 0) || (strncmp(idstr, CHANGELOG_USER_PREFIX,
4095 strlen(CHANGELOG_USER_PREFIX)) != 0)) {
4096 llapi_err_noerrno(LLAPI_MSG_ERROR,
4097 "expecting id of the form '"
4098 CHANGELOG_USER_PREFIX
4099 "<num>'; got '%s'\n", idstr);
4103 return changelog_ioctl(mdtname, OBD_IOC_CHANGELOG_CLEAR, id, endrec, 0);
4106 int llapi_fid2path(const char *device, const char *fidstr, char *buf,
4107 int buflen, long long *recno, int *linkno)
4110 struct getinfo_fid2path *gf;
4113 while (*fidstr == '[')
4116 sscanf(fidstr, SFID, RFID(&fid));
4117 if (!fid_is_sane(&fid)) {
4118 llapi_err_noerrno(LLAPI_MSG_ERROR,
4119 "bad FID format [%s], should be [seq:oid:ver]"
4120 " (e.g. "DFID")\n", fidstr,
4121 (unsigned long long)FID_SEQ_NORMAL, 2, 0);
4125 gf = malloc(sizeof(*gf) + buflen);
4129 gf->gf_recno = *recno;
4130 gf->gf_linkno = *linkno;
4131 gf->gf_pathlen = buflen;
4133 /* Take path or fsname */
4134 rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
4137 llapi_error(LLAPI_MSG_ERROR, rc, "ioctl err %d", rc);
4139 memcpy(buf, gf->gf_path, gf->gf_pathlen);
4140 if (buf[0] == '\0') { /* ROOT path */
4144 *recno = gf->gf_recno;
4145 *linkno = gf->gf_linkno;
4152 static int fid_from_lma(const char *path, const int fd, lustre_fid *fid)
4155 struct lustre_mdt_attrs *lma;
4159 rc = fgetxattr(fd, XATTR_NAME_LMA, buf, sizeof(buf));
4161 rc = lgetxattr(path, XATTR_NAME_LMA, buf, sizeof(buf));
4164 lma = (struct lustre_mdt_attrs *)buf;
4165 fid_le_to_cpu(fid, &lma->lma_self_fid);
4169 int llapi_get_mdt_index_by_fid(int fd, const lustre_fid *fid,
4174 rc = ioctl(fd, LL_IOC_FID2MDTIDX, fid);
4183 int llapi_fd2fid(const int fd, lustre_fid *fid)
4187 memset(fid, 0, sizeof(*fid));
4189 rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0;
4190 if (rc == -EINVAL || rc == -ENOTTY)
4191 rc = fid_from_lma(NULL, fd, fid);
4196 int llapi_path2fid(const char *path, lustre_fid *fid)
4200 memset(fid, 0, sizeof(*fid));
4201 fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
4203 if (errno == ELOOP || errno == ENXIO)
4204 return fid_from_lma(path, -1, fid);
4208 rc = llapi_fd2fid(fd, fid);
4209 if (rc == -EINVAL || rc == -ENOTTY)
4210 rc = fid_from_lma(path, -1, fid);
4216 int llapi_fd2parent(int fd, unsigned int linkno, lustre_fid *parent_fid,
4217 char *name, size_t name_size)
4219 struct getparent *gp;
4222 gp = malloc(sizeof(*gp) + name_size);
4226 gp->gp_linkno = linkno;
4227 gp->gp_name_size = name_size;
4229 rc = ioctl(fd, LL_IOC_GETPARENT, gp);
4235 *parent_fid = gp->gp_fid;
4237 strncpy(name, gp->gp_name, name_size);
4238 name[name_size - 1] = '\0';
4245 int llapi_path2parent(const char *path, unsigned int linkno,
4246 lustre_fid *parent_fid, char *name, size_t name_size)
4251 fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
4255 rc = llapi_fd2parent(fd, linkno, parent_fid, name, name_size);
4260 int llapi_get_connect_flags(const char *mnt, __u64 *flags)
4265 root = opendir(mnt);
4268 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
4272 rc = ioctl(dirfd(root), LL_IOC_GET_CONNECT_FLAGS, flags);
4275 llapi_error(LLAPI_MSG_ERROR, rc,
4276 "ioctl on %s for getting connect flags failed", mnt);
4282 int llapi_get_version(char *buffer, int buffer_size,
4287 struct obd_ioctl_data *data = (struct obd_ioctl_data *)buffer;
4289 fd = open(OBD_DEV_PATH, O_RDONLY);
4293 memset(buffer, 0, buffer_size);
4294 data->ioc_version = OBD_IOCTL_VERSION;
4295 data->ioc_inllen1 = buffer_size - cfs_size_round(sizeof(*data));
4296 data->ioc_inlbuf1 = buffer + cfs_size_round(sizeof(*data));
4297 data->ioc_len = obd_ioctl_packlen(data);
4299 rc = ioctl(fd, OBD_GET_VERSION, buffer);
4306 *version = data->ioc_bulk;
4311 * Get a 64-bit value representing the version of file data pointed by fd.
4313 * Each write or truncate, flushed on OST, will change this value. You can use
4314 * this value to verify if file data was modified. This only checks the file
4315 * data, not metadata.
4317 * \param flags 0: no flush pages, usually used it the process has already
4319 * LL_DV_RD_FLUSH: OSTs will take LCK_PR to flush dirty pages
4321 * LL_DV_WR_FLUSH: OSTs will take LCK_PW to flush all caching
4322 * pages from clients.
4324 * \retval 0 on success.
4325 * \retval -errno on error.
4327 int llapi_get_data_version(int fd, __u64 *data_version, __u64 flags)
4330 struct ioc_data_version idv;
4332 idv.idv_flags = flags;
4334 rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
4338 *data_version = idv.idv_version;
4344 * Create a file without any name open it for read/write
4346 * - file is created as if it were a standard file in the given \a directory
4347 * - file does not appear in \a directory and mtime does not change because
4348 * the filename is handled specially by the Lustre MDS.
4349 * - file is removed at final close
4350 * - file modes are rw------- since it doesn't make sense to have a read-only
4351 * or write-only file that cannot be opened again.
4352 * - if user wants another mode it must use fchmod() on the open file, no
4353 * security problems arise because it cannot be opened by another process.
4355 * \param[in] directory directory from which to inherit layout/MDT idx
4356 * \param[in] idx MDT index on which the file is created,
4357 * \a idx == -1 means no specific MDT is requested
4358 * \param[in] open_flags standard open(2) flags
4360 * \retval 0 on success.
4361 * \retval -errno on error.
4363 int llapi_create_volatile_idx(char *directory, int idx, int open_flags)
4365 char file_path[PATH_MAX];
4366 char filename[PATH_MAX];
4367 int saved_errno = errno;
4375 snprintf(filename, sizeof(filename),
4376 LUSTRE_VOLATILE_HDR"::%.4X", rnumber);
4378 snprintf(filename, sizeof(filename),
4379 LUSTRE_VOLATILE_HDR":%.4X:%.4X", idx, rnumber);
4381 rc = snprintf(file_path, sizeof(file_path),
4382 "%s/%s", directory, filename);
4383 if (rc >= sizeof(file_path))
4386 fd = open(file_path,
4387 O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW | open_flags,
4389 } while (fd < 0 && errno == EEXIST);
4392 llapi_error(LLAPI_MSG_ERROR, errno,
4393 "Cannot create volatile file '%s' in '%s'",
4394 filename + LUSTRE_VOLATILE_HDR_LEN,
4399 /* Unlink file in case this wasn't a Lustre filesystem and the
4400 * magic volatile filename wasn't handled as intended. The
4401 * effect is the same. If volatile open was supported then we
4402 * expect unlink() to return -ENOENT. */
4403 (void)unlink(file_path);
4405 /* Since we are returning successfully we restore errno (and
4406 * mask out possible EEXIST from open() and ENOENT from
4408 errno = saved_errno;
4414 * Swap the layouts between 2 file descriptors
4415 * the 2 files must be open for writing
4416 * first fd received the ioctl, second fd is passed as arg
4417 * this is assymetric but avoid use of root path for ioctl
4419 int llapi_fswap_layouts_grouplock(int fd1, int fd2, __u64 dv1, __u64 dv2,
4420 int gid, __u64 flags)
4422 struct lustre_swap_layouts lsl;
4427 if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
4428 rc = fstat(fd1, &st1);
4432 rc = fstat(fd2, &st2);
4437 lsl.sl_flags = flags;
4441 rc = ioctl(fd1, LL_IOC_LOV_SWAP_LAYOUTS, &lsl);
4445 if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
4446 struct timeval tv1[2];
4447 struct timeval tv2[2];
4449 memset(tv1, 0, sizeof(tv1));
4450 memset(tv2, 0, sizeof(tv2));
4452 if (flags & SWAP_LAYOUTS_KEEP_ATIME) {
4453 tv1[0].tv_sec = st1.st_atime;
4454 tv2[0].tv_sec = st2.st_atime;
4456 tv1[0].tv_sec = st2.st_atime;
4457 tv2[0].tv_sec = st1.st_atime;
4460 if (flags & SWAP_LAYOUTS_KEEP_MTIME) {
4461 tv1[1].tv_sec = st1.st_mtime;
4462 tv2[1].tv_sec = st2.st_mtime;
4464 tv1[1].tv_sec = st2.st_mtime;
4465 tv2[1].tv_sec = st1.st_mtime;
4468 rc = futimes(fd1, tv1);
4472 rc = futimes(fd2, tv2);
4480 int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, __u64 flags)
4487 while (grp_id == 0);
4489 rc = llapi_fswap_layouts_grouplock(fd1, fd2, dv1, dv2, grp_id, flags);
4497 * Swap the layouts between 2 files
4498 * the 2 files are open in write
4500 int llapi_swap_layouts(const char *path1, const char *path2,
4501 __u64 dv1, __u64 dv2, __u64 flags)
4505 fd1 = open(path1, O_WRONLY | O_LOV_DELAY_CREATE);
4508 llapi_error(LLAPI_MSG_ERROR, rc,
4509 "error: cannot open '%s' for write", path1);
4513 fd2 = open(path2, O_WRONLY | O_LOV_DELAY_CREATE);
4516 llapi_error(LLAPI_MSG_ERROR, rc,
4517 "error: cannot open '%s' for write", path2);
4521 rc = llapi_fswap_layouts(fd1, fd2, dv1, dv2, flags);
4523 llapi_error(LLAPI_MSG_ERROR, rc,
4524 "error: cannot swap layout between '%s' and '%s'",
4535 * Attempt to open a file with Lustre file identifier \a fid
4536 * and return an open file descriptor.
4538 * \param[in] lustre_dir path within Lustre filesystem containing \a fid
4539 * \param[in] fid Lustre file identifier of file to open
4540 * \param[in] flags open() flags
4542 * \retval non-negative file descriptor on successful open
4543 * \retval -1 if an error occurred
4545 int llapi_open_by_fid(const char *lustre_dir, const lustre_fid *fid, int flags)
4547 char mntdir[PATH_MAX];
4548 char path[PATH_MAX];
4551 rc = llapi_search_mounts(lustre_dir, 0, mntdir, NULL);
4555 snprintf(path, sizeof(path), "%s/.lustre/fid/"DFID, mntdir, PFID(fid));
4556 return open(path, flags);
4562 * \param fd File to lock.
4563 * \param gid Group Identifier.
4565 * \retval 0 on success.
4566 * \retval -errno on failure.
4568 int llapi_group_lock(int fd, int gid)
4572 rc = ioctl(fd, LL_IOC_GROUP_LOCK, gid);
4575 llapi_error(LLAPI_MSG_ERROR, rc, "cannot get group lock");
4583 * \param fd File to unlock.
4584 * \param gid Group Identifier.
4586 * \retval 0 on success.
4587 * \retval -errno on failure.
4589 int llapi_group_unlock(int fd, int gid)
4593 rc = ioctl(fd, LL_IOC_GROUP_UNLOCK, gid);
4596 llapi_error(LLAPI_MSG_ERROR, rc, "cannot put group lock");