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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/utils/liblustreapi.c
34 * Author: Peter J. Braam <braam@clusterfs.com>
35 * Author: Phil Schwan <phil@clusterfs.com>
36 * Author: Robert Read <rread@clusterfs.com>
50 #include <sys/ioctl.h>
57 #include <sys/statfs.h>
58 #include <sys/syscall.h>
60 #include <sys/types.h>
61 #include <sys/xattr.h>
62 #include <sys/sysmacros.h>
65 #include <libgen.h> /* for dirname() */
66 #include <linux/limits.h>
67 #ifdef HAVE_LINUX_UNISTD_H
68 #include <linux/unistd.h>
76 #include <libcfs/util/ioctl.h>
77 #include <libcfs/util/param.h>
78 #include <libcfs/util/string.h>
79 #include <linux/lnet/lnetctl.h>
80 #include <lustre/lustreapi.h>
81 #include <linux/lustre/lustre_ostid.h>
82 #include <linux/lustre/lustre_ioctl.h>
83 #include "lustreapi_internal.h"
86 static int llapi_msg_level = LLAPI_MSG_MAX;
87 const char *liblustreapi_cmd;
89 char *mdt_hash_name[] = { "none",
90 LMV_HASH_NAME_ALL_CHARS,
91 LMV_HASH_NAME_FNV_1A_64,
95 struct lustre_foreign_type lu_foreign_types[] = {
96 {.lft_type = LU_FOREIGN_TYPE_NONE, .lft_name = "none"},
97 {.lft_type = LU_FOREIGN_TYPE_DAOS, .lft_name = "daos"},
98 /* must be the last element */
99 {.lft_type = LU_FOREIGN_TYPE_UNKNOWN, .lft_name = NULL}
100 /* array max dimension must be <= UINT32_MAX */
103 void llapi_msg_set_level(int level)
105 /* ensure level is in the good range */
106 if (level < LLAPI_MSG_OFF)
107 llapi_msg_level = LLAPI_MSG_OFF;
108 else if (level > LLAPI_MSG_MAX)
109 llapi_msg_level = LLAPI_MSG_MAX;
111 llapi_msg_level = level;
114 int llapi_msg_get_level(void)
116 return llapi_msg_level;
119 void llapi_set_command_name(const char *cmd)
121 liblustreapi_cmd = cmd;
124 void llapi_clear_command_name(void)
126 liblustreapi_cmd = NULL;
129 static void error_callback_default(enum llapi_message_level level, int err,
130 const char *fmt, va_list ap)
132 bool has_nl = strchr(fmt, '\n') != NULL;
134 if (liblustreapi_cmd != NULL)
135 fprintf(stderr, "%s %s: ", program_invocation_short_name,
138 fprintf(stderr, "%s: ", program_invocation_short_name);
141 if (level & LLAPI_MSG_NO_ERRNO) {
142 vfprintf(stderr, fmt, ap);
144 fprintf(stderr, "\n");
149 * Remove trailing linefeed so error string can be appended.
150 * @fmt is a const string, so we can't modify it directly.
152 if (has_nl && (newfmt = strdup(fmt)))
153 *strrchr(newfmt, '\n') = '\0';
155 newfmt = (char *)fmt;
157 vfprintf(stderr, newfmt, ap);
160 fprintf(stderr, ": %s (%d)\n", strerror(err), err);
164 static void info_callback_default(enum llapi_message_level level, int err,
165 const char *fmt, va_list ap)
168 if (liblustreapi_cmd != NULL) {
169 fprintf(stdout, "%s %s: ",
170 program_invocation_short_name,
173 fprintf(stdout, "%s: ", program_invocation_short_name);
176 vfprintf(stdout, fmt, ap);
179 static llapi_log_callback_t llapi_error_callback = error_callback_default;
180 static llapi_log_callback_t llapi_info_callback = info_callback_default;
183 /* llapi_error will preserve errno */
184 void llapi_error(enum llapi_message_level level, int err, const char *fmt, ...)
187 int tmp_errno = errno;
189 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
193 llapi_error_callback(level, abs(err), fmt, args);
198 /* llapi_printf will preserve errno */
199 void llapi_printf(enum llapi_message_level level, const char *fmt, ...)
202 int tmp_errno = errno;
204 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
208 llapi_info_callback(level, 0, fmt, args);
214 * Set a custom error logging function. Passing in NULL will reset the logging
215 * callback to its default value.
217 * This function returns the value of the old callback.
219 llapi_log_callback_t llapi_error_callback_set(llapi_log_callback_t cb)
221 llapi_log_callback_t old = llapi_error_callback;
224 llapi_error_callback = cb;
226 llapi_error_callback = error_callback_default;
232 * Set a custom info logging function. Passing in NULL will reset the logging
233 * callback to its default value.
235 * This function returns the value of the old callback.
237 llapi_log_callback_t llapi_info_callback_set(llapi_log_callback_t cb)
239 llapi_log_callback_t old = llapi_info_callback;
242 llapi_info_callback = cb;
244 llapi_info_callback = info_callback_default;
250 * size_units is to be initialized (or zeroed) by caller.
252 int llapi_parse_size(const char *optarg, unsigned long long *size,
253 unsigned long long *size_units, int bytes_spec)
256 char *argbuf = (char *)optarg;
257 unsigned long long frac = 0, frac_d = 1;
259 if (strncmp(optarg, "-", 1) == 0)
262 if (*size_units == 0)
265 *size = strtoull(argbuf, &end, 0);
266 if (end != NULL && *end == '.') {
270 frac = strtoull(argbuf, &end, 10);
271 /* count decimal places */
272 for (i = 0; i < (end - argbuf); i++)
277 if ((*end == 'b') && *(end + 1) == '\0' &&
278 (*size & (~0ULL << (64 - 9))) == 0 &&
280 *size_units = 1 << 9;
281 } else if ((*end == 'b') &&
282 *(end + 1) == '\0' &&
285 } else if ((*end == 'k' || *end == 'K') &&
286 *(end + 1) == '\0' &&
287 (*size & (~0ULL << (64 - 10))) == 0) {
288 *size_units = 1 << 10;
289 } else if ((*end == 'm' || *end == 'M') &&
290 *(end + 1) == '\0' &&
291 (*size & (~0ULL << (64 - 20))) == 0) {
292 *size_units = 1 << 20;
293 } else if ((*end == 'g' || *end == 'G') &&
294 *(end + 1) == '\0' &&
295 (*size & (~0ULL << (64 - 30))) == 0) {
296 *size_units = 1 << 30;
297 } else if ((*end == 't' || *end == 'T') &&
298 *(end + 1) == '\0' &&
299 (*size & (~0ULL << (64 - 40))) == 0) {
300 *size_units = 1ULL << 40;
301 } else if ((*end == 'p' || *end == 'P') &&
302 *(end + 1) == '\0' &&
303 (*size & (~0ULL << (64 - 50))) == 0) {
304 *size_units = 1ULL << 50;
305 } else if ((*end == 'e' || *end == 'E') &&
306 *(end + 1) == '\0' &&
307 (*size & (~0ULL << (64 - 60))) == 0) {
308 *size_units = 1ULL << 60;
313 *size = *size * *size_units + frac * *size_units / frac_d;
318 int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len)
320 struct obd_ioctl_data *overlay;
323 data->ioc_len = obd_ioctl_packlen(data);
324 data->ioc_version = OBD_IOCTL_VERSION;
326 if (*pbuf != NULL && data->ioc_len > max_len) {
327 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
328 "pbuf = %p, ioc_len = %u, max_len = %d",
329 *pbuf, data->ioc_len, max_len);
334 *pbuf = malloc(data->ioc_len);
339 overlay = (struct obd_ioctl_data *)*pbuf;
340 memcpy(*pbuf, data, sizeof(*data));
342 ptr = overlay->ioc_bulk;
343 if (data->ioc_inlbuf1) {
344 memcpy(ptr, data->ioc_inlbuf1, data->ioc_inllen1);
345 ptr += __ALIGN_KERNEL(data->ioc_inllen1, 8);
348 if (data->ioc_inlbuf2) {
349 memcpy(ptr, data->ioc_inlbuf2, data->ioc_inllen2);
350 ptr += __ALIGN_KERNEL(data->ioc_inllen2, 8);
353 if (data->ioc_inlbuf3) {
354 memcpy(ptr, data->ioc_inlbuf3, data->ioc_inllen3);
355 ptr += __ALIGN_KERNEL(data->ioc_inllen3, 8);
358 if (data->ioc_inlbuf4) {
359 memcpy(ptr, data->ioc_inlbuf4, data->ioc_inllen4);
360 ptr += __ALIGN_KERNEL(data->ioc_inllen4, 8);
366 int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len)
368 struct obd_ioctl_data *overlay;
374 overlay = (struct obd_ioctl_data *)pbuf;
376 /* Preserve the caller's buffer pointers */
377 overlay->ioc_inlbuf1 = data->ioc_inlbuf1;
378 overlay->ioc_inlbuf2 = data->ioc_inlbuf2;
379 overlay->ioc_inlbuf3 = data->ioc_inlbuf3;
380 overlay->ioc_inlbuf4 = data->ioc_inlbuf4;
382 memcpy(data, pbuf, sizeof(*data));
384 ptr = overlay->ioc_bulk;
385 if (data->ioc_inlbuf1) {
386 memcpy(data->ioc_inlbuf1, ptr, data->ioc_inllen1);
387 ptr += __ALIGN_KERNEL(data->ioc_inllen1, 8);
390 if (data->ioc_inlbuf2) {
391 memcpy(data->ioc_inlbuf2, ptr, data->ioc_inllen2);
392 ptr += __ALIGN_KERNEL(data->ioc_inllen2, 8);
395 if (data->ioc_inlbuf3) {
396 memcpy(data->ioc_inlbuf3, ptr, data->ioc_inllen3);
397 ptr += __ALIGN_KERNEL(data->ioc_inllen3, 8);
400 if (data->ioc_inlbuf4) {
401 memcpy(data->ioc_inlbuf4, ptr, data->ioc_inllen4);
402 ptr += __ALIGN_KERNEL(data->ioc_inllen4, 8);
408 /* XXX: llapi_xxx() functions return negative values upon failure */
410 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
411 int stripe_count, int stripe_pattern)
413 static int page_size;
416 if (page_size == 0) {
418 * 64 KB is the largest common page size (on ia64/PPC/ARM),
419 * but check the local page size just in case. The page_size
420 * will not change for the lifetime of this process at least.
422 page_size = LOV_MIN_STRIPE_SIZE;
423 if (getpagesize() > page_size) {
424 page_size = getpagesize();
425 llapi_err_noerrno(LLAPI_MSG_WARN,
426 "warning: page size (%u) larger than expected (%u)",
427 page_size, LOV_MIN_STRIPE_SIZE);
430 if (!llapi_stripe_size_is_aligned(stripe_size)) {
432 llapi_error(LLAPI_MSG_ERROR, rc,
433 "error: bad stripe_size %llu, must be an even multiple of %d bytes",
434 (unsigned long long)stripe_size, page_size);
437 if (!llapi_stripe_index_is_valid(stripe_offset)) {
439 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
443 if (!llapi_stripe_count_is_valid(stripe_count)) {
445 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
449 if (llapi_stripe_size_is_too_big(stripe_size)) {
451 llapi_error(LLAPI_MSG_ERROR, rc,
452 "error: stripe size '%llu' over 4GB limit",
453 (unsigned long long)stripe_size);
462 int llapi_dir_stripe_limit_check(int stripe_offset, int stripe_count,
467 if (!llapi_dir_stripe_index_is_valid(stripe_offset)) {
469 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
473 if (!llapi_dir_stripe_count_is_valid(stripe_count)) {
475 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
480 if (!llapi_dir_hash_type_is_valid(hash_type)) {
482 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad hash type %d",
490 * Trim a trailing newline from a string, if it exists.
492 int llapi_chomp_string(char *buf)
508 * Wrapper to grab parameter settings for lov.*-clilov-*.* values
510 static int get_param_lov(const char *path, const char *param,
511 char *buf, size_t buf_size)
513 struct obd_uuid uuid;
516 rc = llapi_file_get_lov_uuid(path, &uuid);
520 return get_lustre_param_value("lov", uuid.uuid, FILTER_BY_EXACT, param,
525 * Wrapper to grab parameter settings for lmv.*-clilov-*.* values
527 static int get_param_lmv(const char *path, const char *param,
528 char *buf, size_t buf_size)
530 struct obd_uuid uuid;
533 rc = llapi_file_get_lmv_uuid(path, &uuid);
537 return get_lustre_param_value("lmv", uuid.uuid, FILTER_BY_EXACT, param,
541 static int get_mds_md_size(const char *path)
543 int md_size = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
546 * Rather than open the file and do the ioctl to get the
547 * instance name and close the file and search for the param
548 * file and open the param file and read the param file and
549 * parse the value and close the param file, let's just return
550 * a large enough value. It's 2020, RAM is cheap and this is
554 if (md_size < XATTR_SIZE_MAX)
555 md_size = XATTR_SIZE_MAX;
560 int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
562 return get_param_lmv(path, "uuid", buf, bufsize);
566 * Open a Lustre file.
568 * \param name the name of the file to be opened
569 * \param flags access mode, see flags in open(2)
570 * \param mode permission of the file if it is created, see mode in open(2)
571 * \param param stripe pattern of the newly created file
573 * \retval file descriptor of opened file
574 * \retval negative errno on failure
576 int llapi_file_open_param(const char *name, int flags, mode_t mode,
577 const struct llapi_stripe_param *param)
579 char fsname[MAX_OBD_NAME + 1] = { 0 };
580 char *pool_name = param->lsp_pool;
581 struct lov_user_md *lum = NULL;
582 size_t lum_size = sizeof(*lum);
585 /* Make sure we are on a Lustre file system */
586 rc = llapi_search_fsname(name, fsname);
588 llapi_error(LLAPI_MSG_ERROR, rc,
589 "'%s' is not on a Lustre filesystem",
594 /* Check if the stripe pattern is sane. */
595 rc = llapi_stripe_limit_check(param->lsp_stripe_size,
596 param->lsp_stripe_offset,
597 param->lsp_stripe_count,
598 param->lsp_stripe_pattern);
602 /* Make sure we have a good pool */
603 if (pool_name != NULL) {
605 * in case user gives the full pool name <fsname>.<poolname>,
608 char *ptr = strchr(pool_name, '.');
612 if (strcmp(pool_name, fsname) != 0) {
614 llapi_err_noerrno(LLAPI_MSG_ERROR,
615 "Pool '%s' is not on filesystem '%s'",
622 /* Make sure the pool exists and is non-empty */
623 rc = llapi_search_ost(fsname, pool_name, NULL);
625 char *err = rc == 0 ? "has no OSTs" : "does not exist";
627 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
628 fsname, pool_name, err);
632 lum_size = sizeof(struct lov_user_md_v3);
635 /* sanity check of target list */
636 if (param->lsp_is_specific) {
637 char ostname[MAX_OBD_NAME + 64];
641 for (i = 0; i < param->lsp_stripe_count; i++) {
642 snprintf(ostname, sizeof(ostname), "%s-OST%04x_UUID",
643 fsname, param->lsp_osts[i]);
644 rc = llapi_search_ost(fsname, pool_name, ostname);
649 llapi_error(LLAPI_MSG_ERROR, rc,
650 "%s: cannot find OST %s in %s",
657 /* Make sure stripe offset is in OST list. */
658 if (param->lsp_osts[i] == param->lsp_stripe_offset)
662 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
663 "%s: stripe offset '%d' is not in the target list",
664 __func__, param->lsp_stripe_offset);
668 lum_size = lov_user_md_size(param->lsp_stripe_count,
669 LOV_USER_MAGIC_SPECIFIC);
672 lum = calloc(1, lum_size);
677 fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
679 if (errno == EISDIR && !(flags & O_DIRECTORY)) {
680 flags = O_DIRECTORY | O_RDONLY;
687 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
692 /* Initialize IOCTL striping pattern structure */
693 lum->lmm_magic = LOV_USER_MAGIC_V1;
694 lum->lmm_pattern = param->lsp_stripe_pattern;
695 lum->lmm_stripe_size = param->lsp_stripe_size;
696 lum->lmm_stripe_count = param->lsp_stripe_count;
697 lum->lmm_stripe_offset = param->lsp_stripe_offset;
698 if (pool_name != NULL) {
699 struct lov_user_md_v3 *lumv3 = (void *)lum;
701 lumv3->lmm_magic = LOV_USER_MAGIC_V3;
702 strncpy(lumv3->lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
704 if (param->lsp_is_specific) {
705 struct lov_user_md_v3 *lumv3 = (void *)lum;
708 lumv3->lmm_magic = LOV_USER_MAGIC_SPECIFIC;
709 if (pool_name == NULL) {
711 * LOV_USER_MAGIC_SPECIFIC uses v3 format plus specified
712 * OST list, therefore if pool is not specified we have
713 * to pack a null pool name for placeholder.
715 memset(lumv3->lmm_pool_name, 0, LOV_MAXPOOLNAME);
718 for (i = 0; i < param->lsp_stripe_count; i++)
719 lumv3->lmm_objects[i].l_ost_idx = param->lsp_osts[i];
722 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lum) != 0) {
723 char errmsg[512] = "stripe already set";
726 if (errno != EEXIST && errno != EALREADY)
727 strncpy(errmsg, strerror(errno), sizeof(errmsg) - 1);
728 if (rc == -EREMOTEIO)
729 snprintf(errmsg, sizeof(errmsg),
730 "inactive OST among your specified %d OST(s)",
731 param->lsp_stripe_count);
733 llapi_err_noerrno(LLAPI_MSG_ERROR,
734 "setstripe error for '%s': %s", name, errmsg);
745 int llapi_file_open_pool(const char *name, int flags, int mode,
746 unsigned long long stripe_size, int stripe_offset,
747 int stripe_count, int stripe_pattern, char *pool_name)
749 const struct llapi_stripe_param param = {
750 .lsp_stripe_size = stripe_size,
751 .lsp_stripe_count = stripe_count,
752 .lsp_stripe_pattern = stripe_pattern,
753 .lsp_stripe_offset = stripe_offset,
754 .lsp_pool = pool_name
756 return llapi_file_open_param(name, flags, mode, ¶m);
759 int llapi_file_open(const char *name, int flags, int mode,
760 unsigned long long stripe_size, int stripe_offset,
761 int stripe_count, int stripe_pattern)
763 return llapi_file_open_pool(name, flags, mode, stripe_size,
764 stripe_offset, stripe_count,
765 stripe_pattern, NULL);
768 int llapi_file_create_foreign(const char *name, mode_t mode, __u32 type,
769 __u32 flags, char *foreign_lov)
772 struct lov_foreign_md *lfm;
775 if (foreign_lov == NULL) {
777 llapi_error(LLAPI_MSG_ERROR, rc,
778 "foreign LOV EA content must be provided");
782 len = strlen(foreign_lov);
783 if (len > XATTR_SIZE_MAX - offsetof(struct lov_foreign_md, lfm_value) ||
786 llapi_error(LLAPI_MSG_ERROR, rc,
787 "foreign LOV EA size %zu (must be 0 < len < %zu)",
788 len, XATTR_SIZE_MAX -
789 offsetof(struct lov_foreign_md, lfm_value));
793 lfm = malloc(len + offsetof(struct lov_foreign_md, lfm_value));
796 llapi_error(LLAPI_MSG_ERROR, rc,
797 "failed to allocate lov_foreign_md");
801 fd = open(name, O_WRONLY|O_CREAT|O_LOV_DELAY_CREATE, mode);
804 llapi_error(LLAPI_MSG_ERROR, fd, "open '%s' failed", name);
808 lfm->lfm_magic = LOV_USER_MAGIC_FOREIGN;
809 lfm->lfm_length = len;
810 lfm->lfm_type = type;
811 lfm->lfm_flags = flags;
812 memcpy(lfm->lfm_value, foreign_lov, len);
814 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lfm) != 0) {
815 char *errmsg = "stripe already set";
819 errmsg = "not on a Lustre filesystem";
820 else if (errno == EEXIST || errno == EALREADY)
821 errmsg = "stripe already set";
823 errmsg = strerror(errno);
825 llapi_err_noerrno(LLAPI_MSG_ERROR,
826 "setstripe error for '%s': %s", name, errmsg);
842 int llapi_file_create(const char *name, unsigned long long stripe_size,
843 int stripe_offset, int stripe_count, int stripe_pattern)
847 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
848 stripe_offset, stripe_count, stripe_pattern,
857 int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
858 int stripe_offset, int stripe_count,
859 int stripe_pattern, char *pool_name)
863 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
864 stripe_offset, stripe_count, stripe_pattern,
873 static int verify_dir_param(const char *name,
874 const struct llapi_stripe_param *param)
876 char fsname[MAX_OBD_NAME + 1] = { 0 };
877 char *pool_name = param->lsp_pool;
880 /* Make sure we are on a Lustre file system */
881 rc = llapi_search_fsname(name, fsname);
883 llapi_error(LLAPI_MSG_ERROR, rc,
884 "'%s' is not on a Lustre filesystem",
889 /* Check if the stripe pattern is sane. */
890 rc = llapi_dir_stripe_limit_check(param->lsp_stripe_offset,
891 param->lsp_stripe_count,
892 param->lsp_stripe_pattern);
896 /* Make sure we have a good pool */
897 if (pool_name != NULL) {
899 * in case user gives the full pool name <fsname>.<poolname>,
902 char *ptr = strchr(pool_name, '.');
906 if (strcmp(pool_name, fsname) != 0) {
908 llapi_err_noerrno(LLAPI_MSG_ERROR,
909 "Pool '%s' is not on filesystem '%s'",
916 /* Make sure the pool exists and is non-empty */
917 rc = llapi_search_tgt(fsname, pool_name, NULL, true);
919 char *err = rc == 0 ? "has no OSTs" : "does not exist";
921 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
922 fsname, pool_name, err);
927 /* sanity check of target list */
928 if (param->lsp_is_specific) {
929 char mdtname[MAX_OBD_NAME + 64];
933 for (i = 0; i < param->lsp_stripe_count; i++) {
934 snprintf(mdtname, sizeof(mdtname), "%s-MDT%04x_UUID",
935 fsname, param->lsp_tgts[i]);
936 rc = llapi_search_tgt(fsname, pool_name, mdtname, true);
941 llapi_error(LLAPI_MSG_ERROR, rc,
942 "%s: cannot find MDT %s in %s",
949 /* Make sure stripe offset is in MDT list. */
950 if (param->lsp_tgts[i] == param->lsp_stripe_offset)
954 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
955 "%s: stripe offset '%d' is not in the target list",
956 __func__, param->lsp_stripe_offset);
964 static inline void param2lmu(struct lmv_user_md *lmu,
965 const struct llapi_stripe_param *param)
967 lmu->lum_magic = param->lsp_is_specific ? LMV_USER_MAGIC_SPECIFIC :
969 lmu->lum_stripe_count = param->lsp_stripe_count;
970 lmu->lum_stripe_offset = param->lsp_stripe_offset;
971 lmu->lum_hash_type = param->lsp_stripe_pattern;
972 if (param->lsp_pool != NULL)
973 strncpy(lmu->lum_pool_name, param->lsp_pool, LOV_MAXPOOLNAME);
974 if (param->lsp_is_specific) {
977 for (i = 0; i < param->lsp_stripe_count; i++)
978 lmu->lum_objects[i].lum_mds = param->lsp_tgts[i];
982 int llapi_dir_set_default_lmv(const char *name,
983 const struct llapi_stripe_param *param)
985 struct lmv_user_md lmu = { 0 };
989 rc = verify_dir_param(name, param);
993 /* TODO: default lmv doesn't support specific targets yet */
994 if (param->lsp_is_specific)
997 param2lmu(&lmu, param);
999 fd = open(name, O_DIRECTORY | O_RDONLY);
1002 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1006 rc = ioctl(fd, LL_IOC_LMV_SET_DEFAULT_STRIPE, &lmu);
1008 char *errmsg = "stripe already set";
1011 if (errno != EEXIST && errno != EALREADY)
1012 errmsg = strerror(errno);
1014 llapi_err_noerrno(LLAPI_MSG_ERROR,
1015 "default dirstripe error on '%s': %s",
1022 int llapi_dir_set_default_lmv_stripe(const char *name, int stripe_offset,
1023 int stripe_count, int stripe_pattern,
1024 const char *pool_name)
1026 const struct llapi_stripe_param param = {
1027 .lsp_stripe_count = stripe_count,
1028 .lsp_stripe_offset = stripe_offset,
1029 .lsp_stripe_pattern = stripe_pattern,
1030 .lsp_pool = (char *)pool_name
1033 return llapi_dir_set_default_lmv(name, ¶m);
1037 * Create a Lustre directory.
1039 * \param name the name of the directory to be created
1040 * \param mode permission of the file if it is created, see mode in open(2)
1041 * \param param stripe pattern of the newly created directory
1043 * \retval 0 on success
1044 * \retval negative errno on failure
1046 int llapi_dir_create(const char *name, mode_t mode,
1047 const struct llapi_stripe_param *param)
1049 struct lmv_user_md *lmu = NULL;
1051 struct obd_ioctl_data data = { 0 };
1054 char *dirpath = NULL;
1055 char *namepath = NULL;
1060 rc = verify_dir_param(name, param);
1064 lmu_size = lmv_user_md_size(param->lsp_stripe_count,
1065 param->lsp_is_specific ?
1066 LMV_USER_MAGIC_SPECIFIC :
1069 lmu = calloc(1, lmu_size);
1073 dirpath = strdup(name);
1079 namepath = strdup(name);
1086 param2lmu(lmu, param);
1088 filename = basename(namepath);
1089 dir = dirname(dirpath);
1091 data.ioc_inlbuf1 = (char *)filename;
1092 data.ioc_inllen1 = strlen(filename) + 1;
1093 data.ioc_inlbuf2 = (char *)lmu;
1094 data.ioc_inllen2 = lmu_size;
1095 data.ioc_type = mode;
1096 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
1098 llapi_error(LLAPI_MSG_ERROR, rc,
1099 "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
1104 fd = open(dir, O_DIRECTORY | O_RDONLY);
1107 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1111 if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
1112 char *errmsg = "stripe already set";
1115 if (errno != EEXIST && errno != EALREADY)
1116 errmsg = strerror(errno);
1118 llapi_err_noerrno(LLAPI_MSG_ERROR,
1119 "dirstripe error on '%s': %s", name, errmsg);
1130 * Create a foreign directory.
1132 * \param name the name of the directory to be created
1133 * \param mode permission of the file if it is created, see mode in open(2)
1134 * \param type foreign type to be set in LMV EA
1135 * \param flags foreign flags to be set in LMV EA
1136 * \param value foreign pattern to be set in LMV EA
1138 * \retval 0 on success
1139 * \retval negative errno on failure
1141 int llapi_dir_create_foreign(const char *name, mode_t mode, __u32 type,
1142 __u32 flags, const char *value)
1144 struct lmv_foreign_md *lfm = NULL;
1145 size_t lfm_size, len;
1146 struct obd_ioctl_data data = { 0 };
1149 char *dirpath = NULL;
1150 char *namepath = NULL;
1155 len = strlen(value);
1156 if (len > XATTR_SIZE_MAX - offsetof(struct lmv_foreign_md, lfm_value) ||
1159 llapi_error(LLAPI_MSG_ERROR, rc,
1160 "invalid LOV EA length %zu (must be 0 < len < %zu)",
1161 len, XATTR_SIZE_MAX -
1162 offsetof(struct lmv_foreign_md, lfm_value));
1165 lfm_size = len + offsetof(struct lmv_foreign_md, lfm_value);
1166 lfm = calloc(1, lfm_size);
1170 dirpath = strdup(name);
1176 namepath = strdup(name);
1183 lfm->lfm_magic = LMV_MAGIC_FOREIGN;
1184 lfm->lfm_length = len;
1185 lfm->lfm_type = type;
1186 lfm->lfm_flags = flags;
1187 memcpy(lfm->lfm_value, value, len);
1189 filename = basename(namepath);
1190 dir = dirname(dirpath);
1192 data.ioc_inlbuf1 = (char *)filename;
1193 data.ioc_inllen1 = strlen(filename) + 1;
1194 data.ioc_inlbuf2 = (char *)lfm;
1195 data.ioc_inllen2 = lfm_size;
1196 data.ioc_type = mode;
1197 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
1199 llapi_error(LLAPI_MSG_ERROR, rc,
1200 "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
1205 fd = open(dir, O_DIRECTORY | O_RDONLY);
1208 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1212 if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
1213 char *errmsg = "stripe already set";
1216 if (errno != EEXIST && errno != EALREADY)
1217 errmsg = strerror(errno);
1219 llapi_err_noerrno(LLAPI_MSG_ERROR,
1220 "dirstripe error on '%s': %s", name, errmsg);
1230 int llapi_dir_create_pool(const char *name, int mode, int stripe_offset,
1231 int stripe_count, int stripe_pattern,
1232 const char *pool_name)
1234 const struct llapi_stripe_param param = {
1235 .lsp_stripe_count = stripe_count,
1236 .lsp_stripe_offset = stripe_offset,
1237 .lsp_stripe_pattern = stripe_pattern,
1238 .lsp_pool = (char *)pool_name
1241 return llapi_dir_create(name, mode, ¶m);
1244 int llapi_direntry_remove(char *dname)
1246 char *dirpath = NULL;
1247 char *namepath = NULL;
1253 dirpath = strdup(dname);
1254 namepath = strdup(dname);
1255 if (!dirpath || !namepath)
1258 filename = basename(namepath);
1260 dir = dirname(dirpath);
1262 fd = open(dir, O_DIRECTORY | O_RDONLY);
1265 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'",
1270 if (ioctl(fd, LL_IOC_REMOVE_ENTRY, filename))
1271 llapi_error(LLAPI_MSG_ERROR, errno,
1272 "error on ioctl %#lx for '%s' (%d)",
1273 (long)LL_IOC_LMV_SETSTRIPE, filename, fd);
1283 * Find the fsname, the full path, and/or an open fd.
1284 * Either the fsname or path must not be NULL
1286 int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
1289 char buf[PATH_MAX], mntdir[PATH_MAX];
1290 char *ptr, *ptr_end;
1292 int idx = 0, mntlen = 0, fd;
1294 int fsnamelen, mountlen;
1296 /* get the mount point */
1297 fp = setmntent(PROC_MOUNTS, "r");
1300 llapi_error(LLAPI_MSG_ERROR, rc,
1301 "cannot retrieve filesystem mount point");
1305 if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
1308 if (!llapi_is_lustre_mnt(&mnt))
1311 if ((want & WANT_INDEX) && (idx++ != index))
1314 mntlen = strlen(mnt.mnt_dir);
1315 ptr = strchr(mnt.mnt_fsname, '/');
1316 while (ptr && *ptr == '/')
1319 * thanks to the call to llapi_is_lustre_mnt() above,
1320 * we are sure that mnt.mnt_fsname contains ":/",
1321 * so ptr should never be NULL
1326 while (*ptr_end != '/' && *ptr_end != '\0')
1329 /* Check the fsname for a match, if given */
1330 mountlen = ptr_end - ptr;
1331 if (!(want & WANT_FSNAME) && fsname != NULL &&
1332 (fsnamelen = strlen(fsname)) > 0 &&
1333 (fsnamelen != mountlen ||
1334 (strncmp(ptr, fsname, mountlen) != 0)))
1337 /* If the path isn't set return the first one we find */
1338 if (path == NULL || strlen(path) == 0) {
1339 strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
1340 mntdir[sizeof(mntdir) - 1] = '\0';
1341 if ((want & WANT_FSNAME) && fsname != NULL) {
1342 strncpy(fsname, ptr, mountlen);
1343 fsname[mountlen] = '\0';
1347 /* Otherwise find the longest matching path */
1348 } else if ((strlen(path) >= mntlen) &&
1349 (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
1350 /* check the path format */
1351 if (strlen(path) > mntlen && path[mntlen] != '/')
1353 strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
1354 mntdir[sizeof(mntdir) - 1] = '\0';
1355 if ((want & WANT_FSNAME) && fsname != NULL) {
1356 strncpy(fsname, ptr, mountlen);
1357 fsname[mountlen] = '\0';
1367 if ((want & WANT_PATH) && path != NULL) {
1368 strncpy(path, mntdir, mntlen);
1369 path[mntlen] = '\0';
1371 if (want & WANT_FD) {
1372 fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
1375 llapi_error(LLAPI_MSG_ERROR, rc,
1376 "cannot open '%s'", mntdir);
1382 } else if (want & WANT_ERROR)
1383 llapi_err_noerrno(LLAPI_MSG_ERROR,
1384 "'%s' not on a mounted Lustre filesystem",
1385 (want & WANT_PATH) ? fsname : path);
1390 * search lustre mounts
1392 * Calling this function will return to the user the mount point, mntdir, and
1393 * the file system name, fsname, if the user passed a buffer to this routine.
1395 * The user inputs are pathname and index. If the pathname is supplied then
1396 * the value of the index will be ignored. The pathname will return data if
1397 * the pathname is located on a lustre mount. Index is used to pick which
1398 * mount point you want in the case of multiple mounted lustre file systems.
1399 * See function lfs_osts in lfs.c for an example of the index use.
1401 int llapi_search_mounts(const char *pathname, int index, char *mntdir,
1404 int want = WANT_PATH, idx = -1;
1406 if (!pathname || pathname[0] == '\0') {
1410 strcpy(mntdir, pathname);
1414 want |= WANT_FSNAME;
1415 return get_root_path(want, fsname, NULL, mntdir, idx);
1418 /* Given a path, find the corresponding Lustre fsname */
1419 int llapi_search_fsname(const char *pathname, char *fsname)
1424 path = realpath(pathname, NULL);
1426 char tmp[PATH_MAX - 1];
1432 if (pathname[0] != '/') {
1434 * Need an absolute path, but realpath() only works for
1435 * pathnames that actually exist. We go through the
1436 * extra hurdle of dirname(getcwd() + pathname) in
1437 * case the relative pathname contains ".." in it.
1439 char realpath[PATH_MAX - 1];
1441 if (getcwd(realpath, sizeof(realpath) - 2) == NULL) {
1443 llapi_error(LLAPI_MSG_ERROR, rc,
1444 "cannot get current working directory");
1448 rc = snprintf(tmp, sizeof(tmp), "%s/", realpath);
1449 if (rc >= sizeof(tmp)) {
1451 llapi_error(LLAPI_MSG_ERROR, rc,
1452 "invalid parent path '%s'",
1458 rc = snprintf(buf, sizeof(buf), "%s%s", tmp, pathname);
1459 if (rc >= sizeof(buf)) {
1461 llapi_error(LLAPI_MSG_ERROR, rc,
1462 "invalid path '%s'", pathname);
1465 path = realpath(buf, NULL);
1467 ptr = strrchr(buf, '/');
1469 llapi_error(LLAPI_MSG_ERROR |
1470 LLAPI_MSG_NO_ERRNO, 0,
1471 "cannot resolve path '%s'",
1476 path = realpath(buf, NULL);
1479 llapi_error(LLAPI_MSG_ERROR, rc,
1480 "cannot resolve path '%s'",
1486 rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1);
1491 int llapi_search_rootpath(char *pathname, const char *fsname)
1494 * pathname can be used as an argument by get_root_path(),
1495 * clear it for safety
1498 return get_root_path(WANT_PATH, (char *)fsname, NULL, pathname, -1);
1502 * Get the list of pool members.
1503 * \param poolname string of format \<fsname\>.\<poolname\>
1504 * \param members caller-allocated array of char*
1505 * \param list_size size of the members array
1506 * \param buffer caller-allocated buffer for storing OST names
1507 * \param buffer_size size of the buffer
1509 * \return number of members retrieved for this pool
1510 * \retval -error failure
1512 int llapi_get_poolmembers(const char *poolname, char **members,
1513 int list_size, char *buffer, int buffer_size)
1515 char fsname[PATH_MAX];
1524 /* name is FSNAME.POOLNAME */
1525 if (strlen(poolname) >= sizeof(fsname))
1528 snprintf(fsname, sizeof(fsname), "%s", poolname);
1529 pool = strchr(fsname, '.');
1536 rc = poolpath(&pathname, fsname, NULL);
1538 llapi_error(LLAPI_MSG_ERROR, rc,
1539 "Lustre filesystem '%s' not found",
1544 llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
1545 rc = snprintf(buf, sizeof(buf), "%s/%s", pathname.gl_pathv[0], pool);
1546 cfs_free_param_data(&pathname);
1547 if (rc >= sizeof(buf))
1549 fd = fopen(buf, "r");
1552 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open %s", buf);
1557 while (fgets(buf, sizeof(buf), fd) != NULL) {
1558 if (nb_entries >= list_size) {
1562 buf[sizeof(buf) - 1] = '\0';
1564 tmp = strchr(buf, '\n');
1567 if (used + strlen(buf) + 1 > buffer_size) {
1572 strcpy(buffer + used, buf);
1573 members[nb_entries] = buffer + used;
1574 used += strlen(buf) + 1;
1584 * Get the list of pools in a filesystem.
1585 * \param name filesystem name or path
1586 * \param poollist caller-allocated array of char*
1587 * \param list_size size of the poollist array
1588 * \param buffer caller-allocated buffer for storing pool names
1589 * \param buffer_size size of the buffer
1591 * \return number of pools retrieved for this filesystem
1592 * \retval -error failure
1594 int llapi_get_poollist(const char *name, char **poollist, int list_size,
1595 char *buffer, int buffer_size)
1601 struct dirent *pool;
1603 unsigned int nb_entries = 0;
1604 unsigned int used = 0;
1607 /* initialize output array */
1608 for (i = 0; i < list_size; i++)
1611 /* is name a pathname ? */
1612 ptr = strchr(name, '/');
1614 char fsname_buf[MAXNAMLEN];
1616 /* We will need fsname for printing later */
1617 rc = llapi_getname(name, fsname_buf, sizeof(fsname_buf));
1621 ptr = strrchr(fsname_buf, '-');
1625 fsname = strdup(fsname_buf);
1629 /* name is FSNAME */
1630 fsname = strdup(name);
1635 rc = poolpath(&pathname, fsname, NULL);
1637 llapi_error(LLAPI_MSG_ERROR, rc,
1638 "Lustre filesystem '%s' not found", name);
1642 dir = opendir(pathname.gl_pathv[0]);
1645 llapi_error(LLAPI_MSG_ERROR, rc,
1646 "Could not open pool list for '%s'",
1653 pool = readdir(dir);
1659 /* ignore . and .. */
1660 if (!strcmp(pool->d_name, ".") || !strcmp(pool->d_name, ".."))
1663 /* check output bounds */
1664 if (nb_entries >= list_size) {
1666 goto free_dir_no_msg;
1669 /* +2 for '.' and final '\0' */
1670 if (used + strlen(pool->d_name) + strlen(fsname) + 2
1673 goto free_dir_no_msg;
1676 sprintf(buffer + used, "%s.%s", fsname, pool->d_name);
1677 poollist[nb_entries] = buffer + used;
1678 used += strlen(pool->d_name) + strlen(fsname) + 2;
1684 llapi_error(LLAPI_MSG_ERROR, rc,
1685 "Error reading pool list for '%s'", name);
1687 llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
1692 cfs_free_param_data(&pathname);
1695 return rc != 0 ? rc : nb_entries;
1698 /* wrapper for lfs.c and obd.c */
1699 int llapi_poollist(const char *name)
1702 * list of pool names (assume that pool count is smaller
1705 char **list, *buffer = NULL, *fsname = (char *)name;
1706 char *poolname = NULL, *tmp = NULL, data[16];
1707 enum param_filter type = FILTER_BY_PATH;
1708 int obdcount, bufsize, rc, nb, i;
1713 if (name[0] != '/') {
1714 fsname = strdup(name);
1718 poolname = strchr(fsname, '.');
1721 type = FILTER_BY_FS_NAME;
1724 rc = get_lustre_param_value("lov", fsname, type, "numobd",
1725 data, sizeof(data));
1728 obdcount = atoi(data);
1731 * Allocate space for each fsname-OST0000_UUID, 1 per OST,
1732 * and also an array to store the pointers for all that
1736 bufsize = sizeof(struct obd_uuid) * obdcount;
1737 buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
1738 if (buffer == NULL) {
1742 list = (char **) (buffer + bufsize);
1745 /* name is a path or fsname */
1746 nb = llapi_get_poollist(name, list, obdcount,
1749 /* name is a pool name (<fsname>.<poolname>) */
1750 nb = llapi_get_poolmembers(name, list, obdcount,
1754 if (nb == -EOVERFLOW) {
1757 goto retry_get_pools;
1760 for (i = 0; i < nb; i++)
1761 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
1762 rc = (nb < 0 ? nb : 0);
1766 if (fsname != NULL && type == FILTER_BY_FS_NAME)
1771 typedef int (semantic_func_t)(char *path, DIR *parent, DIR **d,
1772 void *data, struct dirent64 *de);
1774 #define OBD_NOT_FOUND (-1)
1776 static void find_param_fini(struct find_param *param)
1778 if (param->fp_migrate)
1781 if (param->fp_obd_indexes) {
1782 free(param->fp_obd_indexes);
1783 param->fp_obd_indexes = NULL;
1786 if (param->fp_lmd) {
1787 free(param->fp_lmd);
1788 param->fp_lmd = NULL;
1791 if (param->fp_lmv_md) {
1792 free(param->fp_lmv_md);
1793 param->fp_lmv_md = NULL;
1797 static int common_param_init(struct find_param *param, char *path)
1799 int lum_size = get_mds_md_size(path);
1804 /* migrate has fp_lmv_md initialized outside */
1805 if (param->fp_migrate)
1808 if (lum_size < PATH_MAX + 1)
1809 lum_size = PATH_MAX + 1;
1811 param->fp_lum_size = lum_size;
1812 param->fp_lmd = calloc(1, offsetof(typeof(*param->fp_lmd), lmd_lmm) +
1814 if (param->fp_lmd == NULL) {
1815 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1816 "error: allocate %zu bytes for layout failed",
1817 sizeof(lstat_t) + param->fp_lum_size);
1821 param->fp_lmv_stripe_count = 256;
1822 param->fp_lmv_md = calloc(1,
1823 lmv_user_md_size(param->fp_lmv_stripe_count,
1824 LMV_USER_MAGIC_SPECIFIC));
1825 if (param->fp_lmv_md == NULL) {
1826 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1827 "error: allocation of %d bytes for ioctl",
1828 lmv_user_md_size(param->fp_lmv_stripe_count,
1829 LMV_USER_MAGIC_SPECIFIC));
1830 find_param_fini(param);
1834 param->fp_got_uuids = 0;
1835 param->fp_obd_indexes = NULL;
1836 param->fp_obd_index = OBD_NOT_FOUND;
1837 param->fp_mdt_index = OBD_NOT_FOUND;
1841 static int cb_common_fini(char *path, DIR *parent, DIR **dirp, void *data,
1842 struct dirent64 *de)
1844 struct find_param *param = data;
1850 /* set errno upon failure */
1851 static DIR *opendir_parent(const char *path)
1857 path_copy = strdup(path);
1858 if (path_copy == NULL)
1861 parent_path = dirname(path_copy);
1862 parent = opendir(parent_path);
1868 static int cb_get_dirstripe(char *path, DIR *d, struct find_param *param)
1873 param->fp_lmv_md->lum_stripe_count = param->fp_lmv_stripe_count;
1874 if (param->fp_get_default_lmv)
1875 param->fp_lmv_md->lum_magic = LMV_USER_MAGIC;
1877 param->fp_lmv_md->lum_magic = LMV_MAGIC_V1;
1879 ret = ioctl(dirfd(d), LL_IOC_LMV_GETSTRIPE, param->fp_lmv_md);
1880 if (errno == E2BIG && ret != 0) {
1884 /* if foreign LMV case, fake stripes number */
1885 if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
1886 struct lmv_foreign_md *lfm;
1888 lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
1889 if (lfm->lfm_length < XATTR_SIZE_MAX -
1890 offsetof(typeof(*lfm), lfm_value)) {
1891 uint32_t size = lfm->lfm_length +
1892 offsetof(typeof(*lfm), lfm_value);
1894 stripe_count = lmv_foreign_to_md_stripes(size);
1896 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
1897 "error: invalid %d foreign size returned from ioctl",
1902 stripe_count = param->fp_lmv_md->lum_stripe_count;
1904 if (stripe_count <= param->fp_lmv_stripe_count)
1907 free(param->fp_lmv_md);
1908 param->fp_lmv_stripe_count = stripe_count;
1909 lmv_size = lmv_user_md_size(stripe_count,
1910 LMV_USER_MAGIC_SPECIFIC);
1911 param->fp_lmv_md = malloc(lmv_size);
1912 if (param->fp_lmv_md == NULL) {
1913 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1914 "error: allocation of %d bytes for ioctl",
1915 lmv_user_md_size(param->fp_lmv_stripe_count,
1916 LMV_USER_MAGIC_SPECIFIC));
1924 static void convert_lmd_statx(struct lov_user_mds_data *lmd_v2, lstat_t *st,
1927 memset(&lmd_v2->lmd_stx, 0, sizeof(lmd_v2->lmd_stx));
1928 lmd_v2->lmd_stx.stx_blksize = st->st_blksize;
1929 lmd_v2->lmd_stx.stx_nlink = st->st_nlink;
1930 lmd_v2->lmd_stx.stx_uid = st->st_uid;
1931 lmd_v2->lmd_stx.stx_gid = st->st_gid;
1932 lmd_v2->lmd_stx.stx_mode = st->st_mode;
1933 lmd_v2->lmd_stx.stx_ino = st->st_ino;
1934 lmd_v2->lmd_stx.stx_size = st->st_size;
1935 lmd_v2->lmd_stx.stx_blocks = st->st_blocks;
1936 lmd_v2->lmd_stx.stx_atime.tv_sec = st->st_atime;
1937 lmd_v2->lmd_stx.stx_ctime.tv_sec = st->st_ctime;
1938 lmd_v2->lmd_stx.stx_mtime.tv_sec = st->st_mtime;
1939 lmd_v2->lmd_stx.stx_rdev_major = major(st->st_rdev);
1940 lmd_v2->lmd_stx.stx_rdev_minor = minor(st->st_rdev);
1941 lmd_v2->lmd_stx.stx_dev_major = major(st->st_dev);
1942 lmd_v2->lmd_stx.stx_dev_minor = minor(st->st_dev);
1943 lmd_v2->lmd_stx.stx_mask |= STATX_BASIC_STATS;
1945 lmd_v2->lmd_flags = 0;
1947 lmd_v2->lmd_flags |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
1949 lmd_v2->lmd_stx.stx_mask &= ~(STATX_SIZE | STATX_BLOCKS);
1950 if (lmd_v2->lmd_stx.stx_size)
1951 lmd_v2->lmd_flags |= OBD_MD_FLLAZYSIZE;
1952 if (lmd_v2->lmd_stx.stx_blocks)
1953 lmd_v2->lmd_flags |= OBD_MD_FLLAZYBLOCKS;
1955 lmd_v2->lmd_flags |= OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME |
1956 OBD_MD_FLBLKSZ | OBD_MD_FLMODE | OBD_MD_FLTYPE |
1957 OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLNLINK |
1962 static int convert_lmdbuf_v1v2(void *lmdbuf, int lmdlen)
1964 struct lov_user_mds_data_v1 *lmd_v1 = lmdbuf;
1965 struct lov_user_mds_data *lmd_v2 = lmdbuf;
1969 size = lov_comp_md_size((struct lov_comp_md_v1 *)&lmd_v1->lmd_lmm);
1973 if (lmdlen < sizeof(lmd_v1->lmd_st) + size)
1976 st = lmd_v1->lmd_st;
1977 memmove(&lmd_v2->lmd_lmm, &lmd_v1->lmd_lmm,
1978 lmdlen - (&lmd_v2->lmd_lmm - &lmd_v1->lmd_lmm));
1979 convert_lmd_statx(lmd_v2, &st, false);
1980 lmd_v2->lmd_lmmsize = 0;
1981 lmd_v2->lmd_padding = 0;
1986 int get_lmd_info_fd(const char *path, int parent_fd, int dir_fd,
1987 void *lmdbuf, int lmdlen, enum get_lmd_info_type type)
1989 struct lov_user_mds_data *lmd = lmdbuf;
1990 static bool use_old_ioctl;
1994 if (parent_fd < 0 && dir_fd < 0)
1996 if (type != GET_LMD_INFO && type != GET_LMD_STRIPE)
2001 * LL_IOC_MDC_GETINFO operates on the current directory inode
2002 * and returns struct lov_user_mds_data, while
2003 * LL_IOC_LOV_GETSTRIPE returns only struct lov_user_md.
2005 if (type == GET_LMD_INFO)
2006 cmd = use_old_ioctl ? LL_IOC_MDC_GETINFO_V1 :
2007 LL_IOC_MDC_GETINFO_V2;
2009 cmd = LL_IOC_LOV_GETSTRIPE;
2012 ret = ioctl(dir_fd, cmd, lmdbuf);
2013 if (ret < 0 && errno == ENOTTY &&
2014 cmd == LL_IOC_MDC_GETINFO_V2) {
2015 cmd = LL_IOC_MDC_GETINFO_V1;
2016 use_old_ioctl = true;
2020 if (cmd == LL_IOC_MDC_GETINFO_V1 && !ret)
2021 ret = convert_lmdbuf_v1v2(lmdbuf, lmdlen);
2022 } else if (parent_fd >= 0) {
2023 const char *fname = strrchr(path, '/');
2026 * IOC_MDC_GETFILEINFO takes as input the filename (relative to
2027 * the parent directory) and returns struct lov_user_mds_data,
2028 * while IOC_MDC_GETFILESTRIPE returns only struct lov_user_md.
2030 * This avoids opening, locking, and closing each file on the
2031 * client if that is not needed. Multiple of these ioctl() can
2032 * be done on the parent dir with a single open for all
2033 * files in that directory, and it also doesn't pollute the
2034 * client dcache with millions of dentries when traversing
2035 * a large filesystem.
2037 fname = (fname == NULL ? path : fname + 1);
2039 ret = snprintf(lmdbuf, lmdlen, "%s", fname);
2042 else if (ret >= lmdlen || ret++ == 0)
2045 if (type == GET_LMD_INFO)
2046 cmd = use_old_ioctl ? IOC_MDC_GETFILEINFO_V1 :
2047 IOC_MDC_GETFILEINFO_V2;
2049 cmd = IOC_MDC_GETFILESTRIPE;
2052 ret = ioctl(parent_fd, cmd, lmdbuf);
2053 if (ret < 0 && errno == ENOTTY &&
2054 cmd == IOC_MDC_GETFILEINFO_V2) {
2055 cmd = IOC_MDC_GETFILEINFO_V1;
2056 use_old_ioctl = true;
2057 goto retry_getfileinfo;
2060 if (cmd == IOC_MDC_GETFILEINFO_V1 && !ret)
2061 ret = convert_lmdbuf_v1v2(lmdbuf, lmdlen);
2065 if (ret && type == GET_LMD_INFO) {
2066 if (errno == ENOTTY) {
2070 * ioctl is not supported, it is not a lustre fs.
2071 * Do the regular lstat(2) instead.
2073 ret = lstat_f(path, &st);
2076 llapi_error(LLAPI_MSG_ERROR, ret,
2077 "error: %s: lstat failed for %s",
2081 convert_lmd_statx(lmd, &st, true);
2083 * It may be wrong to set use_old_ioctl with true as
2084 * the file is not a lustre fs. So reset it with false
2087 use_old_ioctl = false;
2088 } else if (errno == ENOENT) {
2090 llapi_error(LLAPI_MSG_WARN, ret,
2091 "warning: %s does not exist", path);
2092 } else if (errno != EISDIR && errno != ENODATA) {
2094 llapi_error(LLAPI_MSG_ERROR, ret,
2095 "%s ioctl failed for %s.",
2096 dir_fd >= 0 ? "LL_IOC_MDC_GETINFO" :
2097 "IOC_MDC_GETFILEINFO", path);
2104 static int get_lmd_info(char *path, DIR *parent, DIR *dir, void *lmdbuf,
2105 int lmdlen, enum get_lmd_info_type type)
2111 parent_fd = dirfd(parent);
2113 dir_fd = dirfd(dir);
2115 return get_lmd_info_fd(path, parent_fd, dir_fd, lmdbuf, lmdlen, type);
2118 static int llapi_semantic_traverse(char *path, int size, DIR *parent,
2119 semantic_func_t sem_init,
2120 semantic_func_t sem_fini, void *data,
2121 struct dirent64 *de)
2123 struct find_param *param = (struct find_param *)data;
2124 struct dirent64 *dent;
2132 if (!d && errno != ENOTDIR) {
2134 llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
2137 } else if (!d && !parent) {
2138 /* ENOTDIR. Open the parent dir. */
2139 p = opendir_parent(path);
2146 if (sem_init && (ret = sem_init(path, parent ?: p, &d, data, de)))
2152 while ((dent = readdir64(d)) != NULL) {
2155 if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
2159 if ((len + dent->d_reclen + 2) > size) {
2160 llapi_err_noerrno(LLAPI_MSG_ERROR,
2161 "error: %s: string buffer too small",
2166 strcat(path, dent->d_name);
2168 if (dent->d_type == DT_UNKNOWN) {
2169 struct lov_user_mds_data *lmd = param->fp_lmd;
2171 rc = get_lmd_info(path, d, NULL, lmd,
2172 param->fp_lum_size, GET_LMD_INFO);
2174 dent->d_type = IFTODT(lmd->lmd_stx.stx_mode);
2181 switch (dent->d_type) {
2183 llapi_err_noerrno(LLAPI_MSG_ERROR,
2184 "error: %s: '%s' is UNKNOWN type %d",
2185 __func__, dent->d_name, dent->d_type);
2188 rc = llapi_semantic_traverse(path, size, d, sem_init,
2189 sem_fini, data, dent);
2190 if (rc != 0 && ret == 0)
2196 rc = sem_init(path, d, NULL, data, dent);
2197 if (rc < 0 && ret == 0) {
2202 if (sem_fini && rc == 0)
2203 sem_fini(path, d, NULL, data, dent);
2211 sem_fini(path, parent, &d, data, de);
2220 static int param_callback(char *path, semantic_func_t sem_init,
2221 semantic_func_t sem_fini, struct find_param *param)
2223 int ret, len = strlen(path);
2226 if (len > PATH_MAX) {
2228 llapi_error(LLAPI_MSG_ERROR, ret,
2229 "Path name '%s' is too long", path);
2233 buf = (char *)malloc(PATH_MAX + 1);
2237 snprintf(buf, PATH_MAX + 1, "%s", path);
2238 ret = common_param_init(param, buf);
2242 param->fp_depth = 0;
2244 ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
2245 sem_fini, param, NULL);
2247 find_param_fini(param);
2249 return ret < 0 ? ret : 0;
2252 int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
2254 int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
2258 llapi_error(LLAPI_MSG_ERROR, rc, "cannot get lov name");
2263 int llapi_file_fget_lmv_uuid(int fd, struct obd_uuid *lov_name)
2265 int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
2269 llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
2274 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
2278 fd = open(path, O_RDONLY | O_NONBLOCK);
2281 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open '%s'", path);
2285 rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
2291 int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lov_uuid)
2295 fd = open(path, O_RDONLY | O_NONBLOCK);
2298 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
2302 rc = llapi_file_fget_lmv_uuid(fd, lov_uuid);
2314 * If uuidp is NULL, return the number of available obd uuids.
2315 * If uuidp is non-NULL, then it will return the uuids of the obds. If
2316 * there are more OSTs than allocated to uuidp, then an error is returned with
2317 * the ost_count set to number of available obd uuids.
2319 static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
2320 int *ost_count, enum tgt_type type)
2322 char buf[PATH_MAX], format[32];
2323 int rc = 0, index = 0;
2324 struct obd_uuid name;
2328 /* Get the lov name */
2329 if (type == LOV_TYPE)
2330 rc = llapi_file_fget_lov_uuid(fd, &name);
2332 rc = llapi_file_fget_lmv_uuid(fd, &name);
2336 /* Now get the ost uuids */
2337 rc = get_lustre_param_path(type == LOV_TYPE ? "lov" : "lmv", name.uuid,
2338 FILTER_BY_EXACT, "target_obd", ¶m);
2342 fp = fopen(param.gl_pathv[0], "r");
2345 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
2350 snprintf(format, sizeof(format),
2351 "%%d: %%%zus", sizeof(uuidp[0].uuid) - 1);
2352 while (fgets(buf, sizeof(buf), fp) != NULL) {
2353 if (uuidp && (index < *ost_count)) {
2354 if (sscanf(buf, format, &index, uuidp[index].uuid) < 2)
2362 if (uuidp && (index > *ost_count))
2367 cfs_free_param_data(¶m);
2371 int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
2373 return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
2376 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
2381 root = open(mnt, O_RDONLY | O_DIRECTORY);
2384 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2389 rc = ioctl(root, LL_IOC_GETOBDCOUNT, count);
2398 * Check if user specified value matches a real uuid. Ignore _UUID,
2399 * -osc-4ba41334, other trailing gunk in comparison.
2400 * @param real_uuid ends in "_UUID"
2401 * @param search_uuid may or may not end in "_UUID"
2403 int llapi_uuid_match(char *real_uuid, char *search_uuid)
2405 int cmplen = strlen(real_uuid);
2406 int searchlen = strlen(search_uuid);
2408 if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
2410 if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
2414 * The UUIDs may legitimately be different lengths, if
2415 * the system was upgraded from an older version.
2417 if (cmplen != searchlen)
2420 return (strncmp(search_uuid, real_uuid, cmplen) == 0);
2424 * Here, param->fp_obd_uuid points to a single obduuid, the index of which is
2425 * returned in param->fp_obd_index
2427 static int setup_obd_uuid(int fd, char *dname, struct find_param *param)
2429 struct obd_uuid obd_uuid;
2436 if (param->fp_got_uuids)
2439 /* Get the lov/lmv name */
2440 if (param->fp_get_lmv)
2441 rc = llapi_file_fget_lmv_uuid(fd, &obd_uuid);
2443 rc = llapi_file_fget_lov_uuid(fd, &obd_uuid);
2445 if (rc != -ENOTTY) {
2446 llapi_error(LLAPI_MSG_ERROR, rc,
2447 "error: can't get %s name: %s",
2448 param->fp_get_lmv ? "lmv" : "lov",
2456 param->fp_got_uuids = 1;
2458 /* Now get the ost uuids */
2459 rc = get_lustre_param_path(param->fp_get_lmv ? "lmv" : "lov",
2460 obd_uuid.uuid, FILTER_BY_EXACT,
2461 "target_obd", ¶m_data);
2465 fp = fopen(param_data.gl_pathv[0], "r");
2468 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
2469 param_data.gl_pathv[0]);
2473 if (!param->fp_obd_uuid && !param->fp_quiet && !param->fp_obds_printed)
2474 llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
2475 param->fp_get_lmv ? "MDTS" : "OBDS");
2477 snprintf(format, sizeof(format),
2478 "%%d: %%%zus", sizeof(obd_uuid.uuid) - 1);
2479 while (fgets(buf, sizeof(buf), fp) != NULL) {
2482 if (sscanf(buf, format, &index, obd_uuid.uuid) < 2)
2485 if (param->fp_obd_uuid) {
2486 if (llapi_uuid_match(obd_uuid.uuid,
2487 param->fp_obd_uuid->uuid)) {
2488 param->fp_obd_index = index;
2491 } else if (!param->fp_quiet && !param->fp_obds_printed) {
2492 /* Print everything */
2493 llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
2496 param->fp_obds_printed = 1;
2500 if (param->fp_obd_uuid && (param->fp_obd_index == OBD_NOT_FOUND)) {
2501 llapi_err_noerrno(LLAPI_MSG_ERROR,
2502 "error: %s: unknown obduuid: %s",
2503 __func__, param->fp_obd_uuid->uuid);
2507 cfs_free_param_data(¶m_data);
2512 * In this case, param->fp_obd_uuid will be an array of obduuids and
2513 * obd index for all these obduuids will be returned in
2514 * param->fp_obd_indexes
2516 static int setup_indexes(DIR *dir, char *path, struct obd_uuid *obduuids,
2517 int num_obds, int **obdindexes, int *obdindex,
2520 int ret, obdcount, obd_valid = 0, obdnum;
2522 struct obd_uuid *uuids = NULL;
2526 if (type == LOV_TYPE)
2527 ret = get_param_lov(path, "numobd", buf, sizeof(buf));
2529 ret = get_param_lmv(path, "numobd", buf, sizeof(buf));
2533 obdcount = atoi(buf);
2534 uuids = malloc(obdcount * sizeof(struct obd_uuid));
2539 ret = llapi_get_target_uuids(dirfd(dir), uuids, &obdcount, type);
2541 if (ret == -EOVERFLOW) {
2542 struct obd_uuid *uuids_temp;
2544 uuids_temp = realloc(uuids, obdcount *
2545 sizeof(struct obd_uuid));
2546 if (uuids_temp != NULL) {
2548 goto retry_get_uuids;
2553 llapi_error(LLAPI_MSG_ERROR, ret, "cannot get ost uuid");
2557 indexes = malloc(num_obds * sizeof(*obdindex));
2558 if (indexes == NULL) {
2563 for (obdnum = 0; obdnum < num_obds; obdnum++) {
2566 /* The user may have specified a simple index */
2567 i = strtol(obduuids[obdnum].uuid, &end, 0);
2568 if (end && *end == '\0' && i < obdcount) {
2569 indexes[obdnum] = i;
2572 for (i = 0; i < obdcount; i++) {
2573 if (llapi_uuid_match(uuids[i].uuid,
2574 obduuids[obdnum].uuid)) {
2575 indexes[obdnum] = i;
2581 if (i >= obdcount) {
2582 indexes[obdnum] = OBD_NOT_FOUND;
2583 llapi_err_noerrno(LLAPI_MSG_ERROR,
2584 "invalid obduuid '%s'",
2585 obduuids[obdnum].uuid);
2591 *obdindex = OBD_NOT_FOUND;
2593 *obdindex = obd_valid;
2595 *obdindexes = indexes;
2603 static int setup_target_indexes(DIR *dir, char *path, struct find_param *param)
2607 if (param->fp_mdt_uuid) {
2608 ret = setup_indexes(dir, path, param->fp_mdt_uuid,
2610 ¶m->fp_mdt_indexes,
2611 ¶m->fp_mdt_index, LMV_TYPE);
2616 if (param->fp_obd_uuid) {
2617 ret = setup_indexes(dir, path, param->fp_obd_uuid,
2619 ¶m->fp_obd_indexes,
2620 ¶m->fp_obd_index, LOV_TYPE);
2625 param->fp_got_uuids = 1;
2630 int llapi_ostlist(char *path, struct find_param *param)
2635 fd = open(path, O_RDONLY | O_DIRECTORY);
2639 ret = setup_obd_uuid(fd, path, param);
2646 * Tries to determine the default stripe attributes for a given filesystem. The
2647 * filesystem to check should be specified by fsname, or will be determined
2650 static int sattr_get_defaults(const char *const fsname,
2651 unsigned int *scount,
2652 unsigned int *ssize,
2653 unsigned int *soffset)
2659 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2660 "stripecount", val, sizeof(val));
2663 *scount = atoi(val);
2667 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2668 "stripesize", val, sizeof(val));
2675 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2676 "stripeoffset", val, sizeof(val));
2679 *soffset = atoi(val);
2686 * Tries to gather the default stripe attributes for a given filesystem. If
2687 * the attributes can be determined, they are cached for easy retreival the
2688 * next time they are needed. Only a single filesystem's attributes are
2691 int sattr_cache_get_defaults(const char *const fsname,
2692 const char *const pathname, unsigned int *scount,
2693 unsigned int *ssize, unsigned int *soffset)
2696 char fsname[PATH_MAX + 1];
2697 unsigned int stripecount;
2698 unsigned int stripesize;
2699 unsigned int stripeoffset;
2705 char fsname_buf[PATH_MAX + 1];
2706 unsigned int tmp[3];
2708 if (fsname == NULL) {
2709 rc = llapi_search_fsname(pathname, fsname_buf);
2713 snprintf(fsname_buf, sizeof(fsname_buf), "%s", fsname);
2716 if (strncmp(fsname_buf, cache.fsname, sizeof(fsname_buf) - 1) != 0) {
2718 * Ensure all 3 sattrs (count, size, and offset) are
2719 * successfully retrieved and stored in tmp before writing to
2722 rc = sattr_get_defaults(fsname_buf, &tmp[0], &tmp[1], &tmp[2]);
2726 cache.stripecount = tmp[0];
2727 cache.stripesize = tmp[1];
2728 cache.stripeoffset = tmp[2];
2729 snprintf(cache.fsname, sizeof(cache.fsname), "%s", fsname_buf);
2733 *scount = cache.stripecount;
2735 *ssize = cache.stripesize;
2737 *soffset = cache.stripeoffset;
2742 static char *layout2name(__u32 layout_pattern)
2744 if (layout_pattern & LOV_PATTERN_F_RELEASED)
2746 else if (layout_pattern == LOV_PATTERN_MDT)
2748 else if (layout_pattern == LOV_PATTERN_RAID0)
2750 else if (layout_pattern ==
2751 (LOV_PATTERN_RAID0 | LOV_PATTERN_OVERSTRIPING))
2752 return "raid0,overstriped";
2757 enum lov_dump_flags {
2758 LDF_IS_DIR = 0x0001,
2759 LDF_IS_RAW = 0x0002,
2760 LDF_INDENT = 0x0004,
2761 LDF_SKIP_OBJS = 0x0008,
2763 LDF_EXTENSION = 0x0020,
2766 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
2767 struct lov_user_ost_data_v1 *objects,
2768 enum llapi_layout_verbose verbose,
2769 int depth, char *pool_name,
2770 enum lov_dump_flags flags)
2772 bool is_dir = flags & LDF_IS_DIR;
2773 bool is_raw = flags & LDF_IS_RAW;
2774 bool indent = flags & LDF_INDENT;
2775 bool yaml = flags & LDF_YAML;
2776 bool skip_objs = flags & LDF_SKIP_OBJS;
2777 bool extension = flags & LDF_EXTENSION;
2778 char *prefix = is_dir ? "" : "lmm_";
2779 char *separator = "";
2780 char *space = indent ? " " : "";
2783 if (is_dir && lmm_oi_seq(&lum->lmm_oi) == FID_SEQ_LOV_DEFAULT) {
2784 lmm_oi_set_seq(&lum->lmm_oi, 0);
2785 if (!indent && (verbose & VERBOSE_DETAIL))
2786 llapi_printf(LLAPI_MSG_NORMAL, "%s(Default) ", space);
2789 if (!yaml && !indent && depth && path &&
2790 ((verbose != VERBOSE_OBJID) || !is_dir))
2791 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
2793 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
2794 llapi_printf(LLAPI_MSG_NORMAL, "%s%smagic: 0x%08X\n",
2795 space, prefix, lum->lmm_magic);
2796 llapi_printf(LLAPI_MSG_NORMAL, "%s%sseq: %#jx\n",
2798 (uintmax_t)lmm_oi_seq(&lum->lmm_oi));
2799 llapi_printf(LLAPI_MSG_NORMAL, "%s%sobject_id: %#jx\n",
2801 (uintmax_t)lmm_oi_id(&lum->lmm_oi));
2803 if ((verbose & (VERBOSE_DETAIL | VERBOSE_DFID)) && !is_dir) {
2808 if (verbose & ~VERBOSE_DFID)
2809 llapi_printf(LLAPI_MSG_NORMAL, "%slmm_fid: ",
2812 * This needs a bit of hand-holding since old 1.x lmm_oi
2813 * have { oi.oi_id = mds_inum, oi.oi_seq = 0 } and 2.x lmm_oi
2814 * have { oi.oi_id = mds_oid, oi.oi_seq = mds_seq } instead of
2815 * a real FID. Ideally the 2.x code would have stored this
2816 * like a FID with { oi_id = mds_seq, oi_seq = mds_oid } so the
2817 * ostid union lu_fid { f_seq = mds_seq, f_oid = mds_oid }
2818 * worked properly (especially since IGIF FIDs use mds_inum as
2819 * the FID SEQ), but unfortunately that didn't happen.
2821 * Print it to look like an IGIF FID, even though the fields
2822 * are reversed on disk, so that it makes sense to userspace.
2824 * Don't use ostid_id() and ostid_seq(), since they assume the
2825 * oi_fid fields are in the right order. This is why there are
2826 * separate lmm_oi_seq() and lmm_oi_id() routines for this.
2828 * For newer layout types hopefully this will be a real FID.
2830 seq = lmm_oi_seq(&lum->lmm_oi) == 0 ?
2831 lmm_oi_id(&lum->lmm_oi) : lmm_oi_seq(&lum->lmm_oi);
2832 oid = lmm_oi_seq(&lum->lmm_oi) == 0 ?
2833 0 : (__u32)lmm_oi_id(&lum->lmm_oi);
2834 ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
2836 llapi_printf(LLAPI_MSG_NORMAL, DFID_NOBRACE"\n",
2837 (unsigned long long)seq, oid, ver);
2839 llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
2840 (unsigned long long)seq, oid, ver);
2843 if (verbose & VERBOSE_STRIPE_COUNT) {
2844 if (verbose & ~VERBOSE_STRIPE_COUNT)
2845 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_count: ",
2848 if (!is_raw && lum->lmm_stripe_count == 0 &&
2849 lov_pattern(lum->lmm_pattern) != LOV_PATTERN_MDT) {
2850 unsigned int scount;
2852 rc = sattr_cache_get_defaults(NULL, path,
2856 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2859 llapi_error(LLAPI_MSG_ERROR, rc,
2860 "Cannot determine default stripe count.");
2862 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2864 (__s16)lum->lmm_stripe_count);
2867 llapi_printf(LLAPI_MSG_NORMAL, "%hd",
2869 (__s16)lum->lmm_stripe_count);
2871 if (!yaml && is_dir)
2877 if (((verbose & VERBOSE_STRIPE_SIZE) && !extension) ||
2878 ((verbose & VERBOSE_EXT_SIZE) && extension)) {
2879 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2880 if (verbose & ~VERBOSE_EXT_SIZE && extension)
2881 llapi_printf(LLAPI_MSG_NORMAL, "%s%sextension_size: ",
2883 if (verbose & ~VERBOSE_STRIPE_SIZE && !extension)
2884 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_size: ",
2886 if (is_dir && !is_raw && lum->lmm_stripe_size == 0) {
2889 rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
2892 llapi_printf(LLAPI_MSG_NORMAL, "%u", ssize);
2894 llapi_error(LLAPI_MSG_ERROR, rc,
2895 "Cannot determine default stripe size.");
2897 /* Extension size is in KiB */
2898 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
2900 (unsigned long long)(lum->lmm_stripe_size * SEL_UNIT_SIZE) :
2901 (unsigned long long)lum->lmm_stripe_size);
2903 if (!yaml && is_dir)
2909 if ((verbose & VERBOSE_PATTERN)) {
2910 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2911 if (verbose & ~VERBOSE_PATTERN)
2912 llapi_printf(LLAPI_MSG_NORMAL, "%s%spattern: ",
2914 if (lov_pattern_supported(lum->lmm_pattern))
2915 llapi_printf(LLAPI_MSG_NORMAL, "%s",
2916 layout2name(lum->lmm_pattern));
2918 llapi_printf(LLAPI_MSG_NORMAL, "%x", lum->lmm_pattern);
2919 separator = (!yaml && is_dir) ? " " : "\n";
2922 if ((verbose & VERBOSE_GENERATION) && !is_dir) {
2923 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2924 if (verbose & ~VERBOSE_GENERATION)
2925 llapi_printf(LLAPI_MSG_NORMAL, "%s%slayout_gen: ",
2927 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2928 skip_objs ? 0 : (int)lum->lmm_layout_gen);
2932 if (verbose & VERBOSE_STRIPE_OFFSET) {
2933 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2934 if (verbose & ~VERBOSE_STRIPE_OFFSET)
2935 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_offset: ",
2937 if (is_dir || skip_objs)
2938 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2939 lum->lmm_stripe_offset ==
2940 (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
2941 lum->lmm_stripe_offset);
2942 else if (lov_pattern(lum->lmm_pattern) == LOV_PATTERN_MDT)
2943 llapi_printf(LLAPI_MSG_NORMAL, "0");
2945 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2946 objects[0].l_ost_idx);
2947 if (!yaml && is_dir)
2953 if ((verbose & VERBOSE_POOL) && pool_name && (pool_name[0] != '\0')) {
2954 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2955 if (verbose & ~VERBOSE_POOL)
2956 llapi_printf(LLAPI_MSG_NORMAL, "%s%spool: ",
2958 llapi_printf(LLAPI_MSG_NORMAL, "%s", pool_name);
2959 if (!yaml && is_dir)
2965 if (strlen(separator) != 0)
2966 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2969 void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
2970 struct lov_user_ost_data_v1 *objects,
2971 char *path, int obdindex, int depth,
2972 enum llapi_layout_verbose verbose,
2973 enum lov_dump_flags flags)
2975 bool is_dir = flags & LDF_IS_DIR;
2976 bool indent = flags & LDF_INDENT;
2977 bool skip_objs = flags & LDF_SKIP_OBJS;
2978 bool yaml = flags & LDF_YAML;
2979 bool obdstripe = obdindex == OBD_NOT_FOUND;
2982 if (!obdstripe && !skip_objs) {
2983 for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
2984 if (obdindex == objects[i].l_ost_idx) {
2994 lov_dump_user_lmm_header(lum, path, objects, verbose, depth, pool_name,
2997 if (!is_dir && !skip_objs && (verbose & VERBOSE_OBJID) &&
2998 !(lum->lmm_pattern & LOV_PATTERN_F_RELEASED ||
2999 lov_pattern(lum->lmm_pattern) == LOV_PATTERN_MDT)) {
3000 char *space = " - ";
3003 llapi_printf(LLAPI_MSG_NORMAL,
3004 "%6slmm_objects:\n", " ");
3006 llapi_printf(LLAPI_MSG_NORMAL, "lmm_objects:\n");
3008 llapi_printf(LLAPI_MSG_NORMAL,
3009 "\tobdidx\t\t objid\t\t objid\t\t group\n");
3011 for (i = 0; i < lum->lmm_stripe_count; i++) {
3012 int idx = objects[i].l_ost_idx;
3013 long long oid = ostid_id(&objects[i].l_ost_oi);
3014 long long gr = ostid_seq(&objects[i].l_ost_oi);
3016 if (obdindex != OBD_NOT_FOUND && obdindex != idx)
3020 struct lu_fid fid = { 0 };
3022 ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
3023 llapi_printf(LLAPI_MSG_NORMAL,
3024 "%sl_ost_idx: %d\n", space, idx);
3025 llapi_printf(LLAPI_MSG_NORMAL,
3026 "%8sl_fid: "DFID_NOBRACE"\n",
3028 } else if (indent) {
3029 struct lu_fid fid = { 0 };
3031 ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
3032 llapi_printf(LLAPI_MSG_NORMAL,
3033 "%s%d: { l_ost_idx: %d, l_fid: "DFID" }\n",
3034 space, i, idx, PFID(&fid));
3038 sprintf(fmt, "%s%s%s\n",
3039 "\t%6u\t%14llu\t%#13llx\t",
3040 (fid_seq_is_rsvd(gr) ||
3041 fid_seq_is_mdt0(gr)) ?
3042 "%14llu" : "%#14llx", "%s");
3043 llapi_printf(LLAPI_MSG_NORMAL, fmt, idx, oid,
3045 obdindex == idx ? " *" : "");
3049 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3052 void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
3053 char *path, int obdindex, int depth,
3054 enum llapi_layout_verbose verbose,
3055 enum lov_dump_flags flags)
3057 struct lmv_user_mds_data *objects = lum->lum_objects;
3058 char *prefix = lum->lum_magic == LMV_USER_MAGIC ? "(Default)" : "";
3059 char *separator = "";
3060 bool yaml = flags & LDF_YAML;
3061 bool obdstripe = false;
3064 if (obdindex != OBD_NOT_FOUND) {
3065 if (lum->lum_stripe_count == 0) {
3066 if (obdindex == lum->lum_stripe_offset)
3069 for (i = 0; i < lum->lum_stripe_count; i++) {
3070 if (obdindex == objects[i].lum_mds) {
3071 llapi_printf(LLAPI_MSG_NORMAL,
3086 /* show all information default */
3088 if (lum->lum_magic == LMV_USER_MAGIC)
3089 verbose = VERBOSE_POOL | VERBOSE_STRIPE_COUNT |
3090 VERBOSE_STRIPE_OFFSET | VERBOSE_HASH_TYPE;
3092 verbose = VERBOSE_OBJID;
3095 if (depth && path && ((verbose != VERBOSE_OBJID)))
3096 llapi_printf(LLAPI_MSG_NORMAL, "%s%s\n", prefix, path);
3098 if (verbose & VERBOSE_STRIPE_COUNT) {
3099 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3100 if (verbose & ~VERBOSE_STRIPE_COUNT)
3101 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_count: ");
3102 llapi_printf(LLAPI_MSG_NORMAL, "%u",
3103 (int)lum->lum_stripe_count);
3104 if ((verbose & VERBOSE_STRIPE_OFFSET) && !yaml)
3110 if (verbose & VERBOSE_STRIPE_OFFSET) {
3111 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3112 if (verbose & ~VERBOSE_STRIPE_OFFSET)
3113 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_offset: ");
3114 llapi_printf(LLAPI_MSG_NORMAL, "%d",
3115 (int)lum->lum_stripe_offset);
3116 if (verbose & VERBOSE_HASH_TYPE && !yaml)
3122 if (verbose & VERBOSE_HASH_TYPE) {
3123 unsigned int type = lum->lum_hash_type & LMV_HASH_TYPE_MASK;
3124 unsigned int flags = lum->lum_hash_type & ~LMV_HASH_TYPE_MASK;