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>
64 #include <libgen.h> /* for dirname() */
65 #ifdef HAVE_LINUX_UNISTD_H
66 #include <linux/unistd.h>
73 #include <libcfs/util/ioctl.h>
74 #include <libcfs/util/param.h>
75 #include <libcfs/util/string.h>
76 #include <linux/lnet/lnetctl.h>
77 #include <lustre/lustreapi.h>
78 #include <linux/lustre/lustre_ostid.h>
79 #include <linux/lustre/lustre_ioctl.h>
80 #include "lustreapi_internal.h"
82 static int llapi_msg_level = LLAPI_MSG_MAX;
83 const char *liblustreapi_cmd;
85 char *mdt_hash_name[] = { "none",
86 LMV_HASH_NAME_ALL_CHARS,
87 LMV_HASH_NAME_FNV_1A_64 };
89 struct lustre_foreign_type lov_foreign_type[] = {
90 {.lft_type = LOV_FOREIGN_TYPE_NONE, .lft_name = "none"},
91 {.lft_type = LOV_FOREIGN_TYPE_DAOS, .lft_name = "daos"},
92 /* must be the last element */
93 {.lft_type = LOV_FOREIGN_TYPE_UNKNOWN, .lft_name = NULL}
94 /* array max dimension must be <= UINT32_MAX */
97 void llapi_msg_set_level(int level)
99 /* ensure level is in the good range */
100 if (level < LLAPI_MSG_OFF)
101 llapi_msg_level = LLAPI_MSG_OFF;
102 else if (level > LLAPI_MSG_MAX)
103 llapi_msg_level = LLAPI_MSG_MAX;
105 llapi_msg_level = level;
108 int llapi_msg_get_level(void)
110 return llapi_msg_level;
113 void llapi_set_command_name(const char *cmd)
115 liblustreapi_cmd = cmd;
118 void llapi_clear_command_name(void)
120 liblustreapi_cmd = NULL;
123 static void error_callback_default(enum llapi_message_level level, int err,
124 const char *fmt, va_list ap)
126 if (liblustreapi_cmd != NULL)
127 fprintf(stderr, "%s %s: ", program_invocation_short_name,
130 fprintf(stderr, "%s: ", program_invocation_short_name);
131 vfprintf(stderr, fmt, ap);
132 if (level & LLAPI_MSG_NO_ERRNO)
133 fprintf(stderr, "\n");
135 fprintf(stderr, ": %s (%d)\n", strerror(err), err);
138 static void info_callback_default(enum llapi_message_level level, int err,
139 const char *fmt, va_list ap)
142 if (liblustreapi_cmd != NULL) {
143 fprintf(stdout, "%s %s: ",
144 program_invocation_short_name,
147 fprintf(stdout, "%s: ", program_invocation_short_name);
150 vfprintf(stdout, fmt, ap);
153 static llapi_log_callback_t llapi_error_callback = error_callback_default;
154 static llapi_log_callback_t llapi_info_callback = info_callback_default;
157 /* llapi_error will preserve errno */
158 void llapi_error(enum llapi_message_level level, int err, const char *fmt, ...)
161 int tmp_errno = errno;
163 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
167 llapi_error_callback(level, abs(err), fmt, args);
172 /* llapi_printf will preserve errno */
173 void llapi_printf(enum llapi_message_level level, const char *fmt, ...)
176 int tmp_errno = errno;
178 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
182 llapi_info_callback(level, 0, fmt, args);
188 * Set a custom error logging function. Passing in NULL will reset the logging
189 * callback to its default value.
191 * This function returns the value of the old callback.
193 llapi_log_callback_t llapi_error_callback_set(llapi_log_callback_t cb)
195 llapi_log_callback_t old = llapi_error_callback;
198 llapi_error_callback = cb;
200 llapi_error_callback = error_callback_default;
206 * Set a custom info logging function. Passing in NULL will reset the logging
207 * callback to its default value.
209 * This function returns the value of the old callback.
211 llapi_log_callback_t llapi_info_callback_set(llapi_log_callback_t cb)
213 llapi_log_callback_t old = llapi_info_callback;
216 llapi_info_callback = cb;
218 llapi_info_callback = info_callback_default;
224 * size_units is to be initialized (or zeroed) by caller.
226 int llapi_parse_size(const char *optarg, unsigned long long *size,
227 unsigned long long *size_units, int bytes_spec)
230 char *argbuf = (char *)optarg;
231 unsigned long long frac = 0, frac_d = 1;
233 if (strncmp(optarg, "-", 1) == 0)
236 if (*size_units == 0)
239 *size = strtoull(argbuf, &end, 0);
240 if (end != NULL && *end == '.') {
244 frac = strtoull(argbuf, &end, 10);
245 /* count decimal places */
246 for (i = 0; i < (end - argbuf); i++)
251 if ((*end == 'b') && *(end + 1) == '\0' &&
252 (*size & (~0ULL << (64 - 9))) == 0 &&
254 *size_units = 1 << 9;
255 } else if ((*end == 'b') &&
256 *(end + 1) == '\0' &&
259 } else if ((*end == 'k' || *end == 'K') &&
260 *(end + 1) == '\0' &&
261 (*size & (~0ULL << (64 - 10))) == 0) {
262 *size_units = 1 << 10;
263 } else if ((*end == 'm' || *end == 'M') &&
264 *(end + 1) == '\0' &&
265 (*size & (~0ULL << (64 - 20))) == 0) {
266 *size_units = 1 << 20;
267 } else if ((*end == 'g' || *end == 'G') &&
268 *(end + 1) == '\0' &&
269 (*size & (~0ULL << (64 - 30))) == 0) {
270 *size_units = 1 << 30;
271 } else if ((*end == 't' || *end == 'T') &&
272 *(end + 1) == '\0' &&
273 (*size & (~0ULL << (64 - 40))) == 0) {
274 *size_units = 1ULL << 40;
275 } else if ((*end == 'p' || *end == 'P') &&
276 *(end + 1) == '\0' &&
277 (*size & (~0ULL << (64 - 50))) == 0) {
278 *size_units = 1ULL << 50;
279 } else if ((*end == 'e' || *end == 'E') &&
280 *(end + 1) == '\0' &&
281 (*size & (~0ULL << (64 - 60))) == 0) {
282 *size_units = 1ULL << 60;
287 *size = *size * *size_units + frac * *size_units / frac_d;
292 int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len)
294 struct obd_ioctl_data *overlay;
297 data->ioc_len = obd_ioctl_packlen(data);
298 data->ioc_version = OBD_IOCTL_VERSION;
300 if (*pbuf != NULL && data->ioc_len > max_len) {
301 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
302 "pbuf = %p, ioc_len = %u, max_len = %d\n",
303 *pbuf, data->ioc_len, max_len);
308 *pbuf = malloc(data->ioc_len);
313 overlay = (struct obd_ioctl_data *)*pbuf;
314 memcpy(*pbuf, data, sizeof(*data));
316 ptr = overlay->ioc_bulk;
317 if (data->ioc_inlbuf1) {
318 memcpy(ptr, data->ioc_inlbuf1, data->ioc_inllen1);
319 ptr += __ALIGN_KERNEL(data->ioc_inllen1, 8);
322 if (data->ioc_inlbuf2) {
323 memcpy(ptr, data->ioc_inlbuf2, data->ioc_inllen2);
324 ptr += __ALIGN_KERNEL(data->ioc_inllen2, 8);
327 if (data->ioc_inlbuf3) {
328 memcpy(ptr, data->ioc_inlbuf3, data->ioc_inllen3);
329 ptr += __ALIGN_KERNEL(data->ioc_inllen3, 8);
332 if (data->ioc_inlbuf4) {
333 memcpy(ptr, data->ioc_inlbuf4, data->ioc_inllen4);
334 ptr += __ALIGN_KERNEL(data->ioc_inllen4, 8);
340 int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len)
342 struct obd_ioctl_data *overlay;
348 overlay = (struct obd_ioctl_data *)pbuf;
350 /* Preserve the caller's buffer pointers */
351 overlay->ioc_inlbuf1 = data->ioc_inlbuf1;
352 overlay->ioc_inlbuf2 = data->ioc_inlbuf2;
353 overlay->ioc_inlbuf3 = data->ioc_inlbuf3;
354 overlay->ioc_inlbuf4 = data->ioc_inlbuf4;
356 memcpy(data, pbuf, sizeof(*data));
358 ptr = overlay->ioc_bulk;
359 if (data->ioc_inlbuf1) {
360 memcpy(data->ioc_inlbuf1, ptr, data->ioc_inllen1);
361 ptr += __ALIGN_KERNEL(data->ioc_inllen1, 8);
364 if (data->ioc_inlbuf2) {
365 memcpy(data->ioc_inlbuf2, ptr, data->ioc_inllen2);
366 ptr += __ALIGN_KERNEL(data->ioc_inllen2, 8);
369 if (data->ioc_inlbuf3) {
370 memcpy(data->ioc_inlbuf3, ptr, data->ioc_inllen3);
371 ptr += __ALIGN_KERNEL(data->ioc_inllen3, 8);
374 if (data->ioc_inlbuf4) {
375 memcpy(data->ioc_inlbuf4, ptr, data->ioc_inllen4);
376 ptr += __ALIGN_KERNEL(data->ioc_inllen4, 8);
382 /* XXX: llapi_xxx() functions return negative values upon failure */
384 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
385 int stripe_count, int stripe_pattern)
389 /* 64 KB is the largest common page size I'm aware of (on ia64), but
390 * check the local page size just in case. */
391 page_size = LOV_MIN_STRIPE_SIZE;
392 if (getpagesize() > page_size) {
393 page_size = getpagesize();
394 llapi_err_noerrno(LLAPI_MSG_WARN,
395 "warning: your page size (%u) is "
396 "larger than expected (%u)", page_size,
397 LOV_MIN_STRIPE_SIZE);
399 if (!llapi_stripe_size_is_aligned(stripe_size)) {
401 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe_size %llu, "
402 "must be an even multiple of %d bytes",
403 stripe_size, page_size);
406 if (!llapi_stripe_index_is_valid(stripe_offset)) {
408 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
412 if (!llapi_stripe_count_is_valid(stripe_count)) {
414 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
418 if (llapi_stripe_size_is_too_big(stripe_size)) {
420 llapi_error(LLAPI_MSG_ERROR, rc,
421 "warning: stripe size 4G or larger "
422 "is not currently supported and would wrap");
428 int llapi_dir_stripe_limit_check(int stripe_offset, int stripe_count,
433 if (!llapi_dir_stripe_index_is_valid(stripe_offset)) {
435 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
439 if (!llapi_dir_stripe_count_is_valid(stripe_count)) {
441 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
446 if (!llapi_dir_hash_type_is_valid(hash_type)) {
448 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad hash type %d",
456 * Trim a trailing newline from a string, if it exists.
458 int llapi_chomp_string(char *buf)
474 * Wrapper to grab parameter settings for lov.*-clilov-*.* values
476 static int get_param_lov(const char *path, const char *param,
477 char *buf, size_t buf_size)
479 struct obd_uuid uuid;
482 rc = llapi_file_get_lov_uuid(path, &uuid);
486 return get_lustre_param_value("lov", uuid.uuid, FILTER_BY_EXACT, param,
491 * Wrapper to grab parameter settings for lmv.*-clilov-*.* values
493 static int get_param_lmv(const char *path, const char *param,
494 char *buf, size_t buf_size)
496 struct obd_uuid uuid;
499 rc = llapi_file_get_lmv_uuid(path, &uuid);
503 return get_lustre_param_value("lmv", uuid.uuid, FILTER_BY_EXACT, param,
507 static int get_mds_md_size(const char *path)
509 char buf[PATH_MAX], inst[PATH_MAX];
510 int md_size = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
513 rc = llapi_getname(path, inst, sizeof(inst));
517 /* Get the max ea size from llite parameters. */
518 rc = get_lustre_param_value("llite", inst, FILTER_BY_EXACT,
519 "max_easize", buf, sizeof(buf));
525 return rc > 0 ? rc : md_size;
528 int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
530 return get_param_lmv(path, "uuid", buf, bufsize);
534 * if pool is NULL, search tgtname in target_obd
535 * if pool is not NULL:
536 * if pool not found returns errno < 0
537 * if tgtname is NULL, returns 1 if pool is not empty and 0 if pool empty
538 * if tgtname is not NULL, returns 1 if OST is in pool and 0 if not
540 int llapi_search_tgt(char *fsname, char *poolname, char *tgtname, bool is_mdt)
542 char buffer[PATH_MAX];
548 /* You need one or the other */
549 if (poolname == NULL && fsname == NULL)
553 len = strlen(tgtname);
555 if (poolname == NULL && len == 0)
558 /* Search by poolname and fsname if is not NULL */
559 if (poolname != NULL) {
560 rc = poolpath(¶m, fsname, NULL);
562 snprintf(buffer, sizeof(buffer), "%s/%s",
563 param.gl_pathv[0], poolname);
565 } else if (fsname != NULL) {
566 rc = get_lustre_param_path(is_mdt ? "lmv" : "lov", fsname,
568 "target_obd", ¶m);
570 strncpy(buffer, param.gl_pathv[0],
576 cfs_free_param_data(¶m);
580 fd = fopen(buffer, "r");
584 while (fgets(buffer, sizeof(buffer), fd) != NULL) {
585 if (poolname == NULL) {
587 /* Search for an tgtname in the list of targets
588 * Line format is IDX: fsname-OST/MDTxxxx_UUID STATUS */
589 ptr = strchr(buffer, ' ');
591 (strncmp(ptr + 1, tgtname, len) == 0)) {
596 /* Search for an tgtname in a pool,
597 * (or an existing non-empty pool if no tgtname) */
598 if ((tgtname == NULL) ||
599 (strncmp(buffer, tgtname, len) == 0)) {
609 int llapi_search_ost(char *fsname, char *poolname, char *ostname)
611 return llapi_search_tgt(fsname, poolname, ostname, false);
615 * Open a Lustre file.
617 * \param name the name of the file to be opened
618 * \param flags access mode, see flags in open(2)
619 * \param mode permission of the file if it is created, see mode in open(2)
620 * \param param stripe pattern of the newly created file
622 * \retval file descriptor of opened file
623 * \retval negative errno on failure
625 int llapi_file_open_param(const char *name, int flags, mode_t mode,
626 const struct llapi_stripe_param *param)
628 char fsname[MAX_OBD_NAME + 1] = { 0 };
629 char *pool_name = param->lsp_pool;
630 struct lov_user_md *lum = NULL;
631 size_t lum_size = sizeof(*lum);
634 /* Make sure we are on a Lustre file system */
635 rc = llapi_search_fsname(name, fsname);
637 llapi_error(LLAPI_MSG_ERROR, rc,
638 "'%s' is not on a Lustre filesystem",
643 /* Check if the stripe pattern is sane. */
644 rc = llapi_stripe_limit_check(param->lsp_stripe_size,
645 param->lsp_stripe_offset,
646 param->lsp_stripe_count,
647 param->lsp_stripe_pattern);
651 /* Make sure we have a good pool */
652 if (pool_name != NULL) {
653 /* in case user gives the full pool name <fsname>.<poolname>,
654 * strip the fsname */
655 char *ptr = strchr(pool_name, '.');
658 if (strcmp(pool_name, fsname) != 0) {
660 llapi_err_noerrno(LLAPI_MSG_ERROR,
661 "Pool '%s' is not on filesystem '%s'",
668 /* Make sure the pool exists and is non-empty */
669 rc = llapi_search_ost(fsname, pool_name, NULL);
671 char *err = rc == 0 ? "has no OSTs" : "does not exist";
673 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
674 fsname, pool_name, err);
678 lum_size = sizeof(struct lov_user_md_v3);
681 /* sanity check of target list */
682 if (param->lsp_is_specific) {
683 char ostname[MAX_OBD_NAME + 1];
687 for (i = 0; i < param->lsp_stripe_count; i++) {
688 snprintf(ostname, sizeof(ostname), "%s-OST%04x_UUID",
689 fsname, param->lsp_osts[i]);
690 rc = llapi_search_ost(fsname, pool_name, ostname);
695 llapi_error(LLAPI_MSG_ERROR, rc,
696 "%s: cannot find OST %s in %s",
703 /* Make sure stripe offset is in OST list. */
704 if (param->lsp_osts[i] == param->lsp_stripe_offset)
708 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
709 "%s: stripe offset '%d' is not in the "
711 __func__, param->lsp_stripe_offset);
715 lum_size = lov_user_md_size(param->lsp_stripe_count,
716 LOV_USER_MAGIC_SPECIFIC);
719 lum = calloc(1, lum_size);
724 fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
726 if (errno == EISDIR && !(flags & O_DIRECTORY)) {
727 flags = O_DIRECTORY | O_RDONLY;
734 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
739 /* Initialize IOCTL striping pattern structure */
740 lum->lmm_magic = LOV_USER_MAGIC_V1;
741 lum->lmm_pattern = param->lsp_stripe_pattern;
742 lum->lmm_stripe_size = param->lsp_stripe_size;
743 lum->lmm_stripe_count = param->lsp_stripe_count;
744 lum->lmm_stripe_offset = param->lsp_stripe_offset;
745 if (pool_name != NULL) {
746 struct lov_user_md_v3 *lumv3 = (void *)lum;
748 lumv3->lmm_magic = LOV_USER_MAGIC_V3;
749 strncpy(lumv3->lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
751 if (param->lsp_is_specific) {
752 struct lov_user_md_v3 *lumv3 = (void *)lum;
755 lumv3->lmm_magic = LOV_USER_MAGIC_SPECIFIC;
756 if (pool_name == NULL) {
757 /* LOV_USER_MAGIC_SPECIFIC uses v3 format plus specified
758 * OST list, therefore if pool is not specified we have
759 * to pack a null pool name for placeholder. */
760 memset(lumv3->lmm_pool_name, 0, LOV_MAXPOOLNAME);
763 for (i = 0; i < param->lsp_stripe_count; i++)
764 lumv3->lmm_objects[i].l_ost_idx = param->lsp_osts[i];
767 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lum) != 0) {
768 char *errmsg = "stripe already set";
771 if (errno != EEXIST && errno != EALREADY)
772 errmsg = strerror(errno);
774 llapi_err_noerrno(LLAPI_MSG_ERROR,
775 "setstripe error for '%s': %s", name, errmsg);
786 int llapi_file_open_pool(const char *name, int flags, int mode,
787 unsigned long long stripe_size, int stripe_offset,
788 int stripe_count, int stripe_pattern, char *pool_name)
790 const struct llapi_stripe_param param = {
791 .lsp_stripe_size = stripe_size,
792 .lsp_stripe_count = stripe_count,
793 .lsp_stripe_pattern = stripe_pattern,
794 .lsp_stripe_offset = stripe_offset,
795 .lsp_pool = pool_name
797 return llapi_file_open_param(name, flags, mode, ¶m);
800 int llapi_file_open(const char *name, int flags, int mode,
801 unsigned long long stripe_size, int stripe_offset,
802 int stripe_count, int stripe_pattern)
804 return llapi_file_open_pool(name, flags, mode, stripe_size,
805 stripe_offset, stripe_count,
806 stripe_pattern, NULL);
809 int llapi_file_create_foreign(const char *name, mode_t mode, __u32 type,
810 __u32 flags, char *foreign_lov)
813 struct lov_foreign_md *lfm;
816 if (foreign_lov == NULL) {
817 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
818 "foreign LOV EA content must be provided");
822 len = strlen(foreign_lov);
823 if (len > XATTR_SIZE_MAX - offsetof(struct lov_foreign_md, lfm_value) ||
825 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
826 "foreign LOV EA size %zu (must be 0 < len < %zu)",
827 len, XATTR_SIZE_MAX -
828 offsetof(struct lov_foreign_md, lfm_value));
832 lfm = malloc(len + offsetof(struct lov_foreign_md, lfm_value));
834 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
835 "failed to allocate lov_foreign_md");
839 fd = open(name, O_WRONLY|O_CREAT|O_LOV_DELAY_CREATE, mode);
846 lfm->lfm_magic = LOV_USER_MAGIC_FOREIGN;
847 lfm->lfm_length = len;
848 lfm->lfm_type = type;
849 lfm->lfm_flags = flags;
850 memcpy(lfm->lfm_value, foreign_lov, len);
852 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lfm) != 0) {
853 char *errmsg = "stripe already set";
854 char fsname[MAX_OBD_NAME + 1] = { 0 };
857 if (errno != EEXIST && errno != EALREADY)
858 errmsg = strerror(errno);
860 llapi_err_noerrno(LLAPI_MSG_ERROR,
861 "setstripe error for '%s': %s", name, errmsg);
863 /* Make sure we are on a Lustre file system */
864 if (rc == -ENOTTY && llapi_search_fsname(name, fsname))
865 llapi_error(LLAPI_MSG_ERROR, rc,
866 "'%s' is not on a Lustre filesystem",
879 int llapi_file_create(const char *name, unsigned long long stripe_size,
880 int stripe_offset, int stripe_count, int stripe_pattern)
884 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
885 stripe_offset, stripe_count, stripe_pattern,
894 int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
895 int stripe_offset, int stripe_count,
896 int stripe_pattern, char *pool_name)
900 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
901 stripe_offset, stripe_count, stripe_pattern,
910 static int verify_dir_param(const char *name,
911 const struct llapi_stripe_param *param)
913 char fsname[MAX_OBD_NAME + 1] = { 0 };
914 char *pool_name = param->lsp_pool;
917 /* Make sure we are on a Lustre file system */
918 rc = llapi_search_fsname(name, fsname);
920 llapi_error(LLAPI_MSG_ERROR, rc,
921 "'%s' is not on a Lustre filesystem",
926 /* Check if the stripe pattern is sane. */
927 rc = llapi_dir_stripe_limit_check(param->lsp_stripe_offset,
928 param->lsp_stripe_count,
929 param->lsp_stripe_pattern);
933 /* Make sure we have a good pool */
934 if (pool_name != NULL) {
935 /* in case user gives the full pool name <fsname>.<poolname>,
936 * strip the fsname */
937 char *ptr = strchr(pool_name, '.');
941 if (strcmp(pool_name, fsname) != 0) {
943 llapi_err_noerrno(LLAPI_MSG_ERROR,
944 "Pool '%s' is not on filesystem '%s'",
951 /* Make sure the pool exists and is non-empty */
952 rc = llapi_search_tgt(fsname, pool_name, NULL, true);
954 char *err = rc == 0 ? "has no OSTs" : "does not exist";
956 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
957 fsname, pool_name, err);
962 /* sanity check of target list */
963 if (param->lsp_is_specific) {
964 char mdtname[MAX_OBD_NAME + 1];
968 for (i = 0; i < param->lsp_stripe_count; i++) {
969 snprintf(mdtname, sizeof(mdtname), "%s-MDT%04x_UUID",
970 fsname, param->lsp_tgts[i]);
971 rc = llapi_search_tgt(fsname, pool_name, mdtname, true);
976 llapi_error(LLAPI_MSG_ERROR, rc,
977 "%s: cannot find MDT %s in %s",
984 /* Make sure stripe offset is in MDT list. */
985 if (param->lsp_tgts[i] == param->lsp_stripe_offset)
989 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
990 "%s: stripe offset '%d' is not in the "
992 __func__, param->lsp_stripe_offset);
1000 static inline void param2lmu(struct lmv_user_md *lmu,
1001 const struct llapi_stripe_param *param)
1003 lmu->lum_magic = param->lsp_is_specific ? LMV_USER_MAGIC_SPECIFIC :
1005 lmu->lum_stripe_count = param->lsp_stripe_count;
1006 lmu->lum_stripe_offset = param->lsp_stripe_offset;
1007 lmu->lum_hash_type = param->lsp_stripe_pattern;
1008 if (param->lsp_pool != NULL)
1009 strncpy(lmu->lum_pool_name, param->lsp_pool, LOV_MAXPOOLNAME);
1010 if (param->lsp_is_specific) {
1013 for (i = 0; i < param->lsp_stripe_count; i++)
1014 lmu->lum_objects[i].lum_mds = param->lsp_tgts[i];
1018 int llapi_dir_set_default_lmv(const char *name,
1019 const struct llapi_stripe_param *param)
1021 struct lmv_user_md lmu = { 0 };
1025 rc = verify_dir_param(name, param);
1029 /* TODO: default lmv doesn't support specific targets yet */
1030 if (param->lsp_is_specific)
1033 param2lmu(&lmu, param);
1035 fd = open(name, O_DIRECTORY | O_RDONLY);
1038 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1042 rc = ioctl(fd, LL_IOC_LMV_SET_DEFAULT_STRIPE, &lmu);
1044 char *errmsg = "stripe already set";
1046 if (errno != EEXIST && errno != EALREADY)
1047 errmsg = strerror(errno);
1049 llapi_err_noerrno(LLAPI_MSG_ERROR,
1050 "default dirstripe error on '%s': %s",
1057 int llapi_dir_set_default_lmv_stripe(const char *name, int stripe_offset,
1058 int stripe_count, int stripe_pattern,
1059 const char *pool_name)
1061 const struct llapi_stripe_param param = {
1062 .lsp_stripe_count = stripe_count,
1063 .lsp_stripe_offset = stripe_offset,
1064 .lsp_stripe_pattern = stripe_pattern,
1065 .lsp_pool = (char *)pool_name
1068 return llapi_dir_set_default_lmv(name, ¶m);
1072 * Create a Lustre directory.
1074 * \param name the name of the directory to be created
1075 * \param mode permission of the file if it is created, see mode in open(2)
1076 * \param param stripe pattern of the newly created directory
1078 * \retval 0 on success
1079 * \retval negative errno on failure
1081 int llapi_dir_create(const char *name, mode_t mode,
1082 const struct llapi_stripe_param *param)
1084 struct lmv_user_md *lmu = NULL;
1086 struct obd_ioctl_data data = { 0 };
1089 char *dirpath = NULL;
1090 char *namepath = NULL;
1095 rc = verify_dir_param(name, param);
1099 lmu_size = lmv_user_md_size(param->lsp_stripe_count,
1100 param->lsp_is_specific ?
1101 LMV_USER_MAGIC_SPECIFIC :
1104 lmu = calloc(1, lmu_size);
1108 dirpath = strdup(name);
1114 namepath = strdup(name);
1121 param2lmu(lmu, param);
1123 filename = basename(namepath);
1124 dir = dirname(dirpath);
1126 data.ioc_inlbuf1 = (char *)filename;
1127 data.ioc_inllen1 = strlen(filename) + 1;
1128 data.ioc_inlbuf2 = (char *)lmu;
1129 data.ioc_inllen2 = lmu_size;
1130 data.ioc_type = mode;
1131 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
1133 llapi_error(LLAPI_MSG_ERROR, rc,
1134 "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
1139 fd = open(dir, O_DIRECTORY | O_RDONLY);
1142 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1146 if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
1147 char *errmsg = "stripe already set";
1150 if (errno != EEXIST && errno != EALREADY)
1151 errmsg = strerror(errno);
1153 llapi_err_noerrno(LLAPI_MSG_ERROR,
1154 "dirstripe error on '%s': %s", name, errmsg);
1165 int llapi_dir_create_pool(const char *name, int mode, int stripe_offset,
1166 int stripe_count, int stripe_pattern,
1167 const char *pool_name)
1169 const struct llapi_stripe_param param = {
1170 .lsp_stripe_count = stripe_count,
1171 .lsp_stripe_offset = stripe_offset,
1172 .lsp_stripe_pattern = stripe_pattern,
1173 .lsp_pool = (char *)pool_name
1176 return llapi_dir_create(name, mode, ¶m);
1179 int llapi_direntry_remove(char *dname)
1181 char *dirpath = NULL;
1182 char *namepath = NULL;
1188 dirpath = strdup(dname);
1189 namepath = strdup(dname);
1190 if (!dirpath || !namepath)
1193 filename = basename(namepath);
1195 dir = dirname(dirpath);
1197 fd = open(dir, O_DIRECTORY | O_RDONLY);
1200 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'",
1205 if (ioctl(fd, LL_IOC_REMOVE_ENTRY, filename)) {
1206 char *errmsg = strerror(errno);
1207 llapi_err_noerrno(LLAPI_MSG_ERROR,
1208 "error on ioctl %#jx for '%s' (%d): %s",
1209 (uintmax_t)LL_IOC_LMV_SETSTRIPE, filename,
1221 * Find the fsname, the full path, and/or an open fd.
1222 * Either the fsname or path must not be NULL
1224 int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
1227 char buf[PATH_MAX], mntdir[PATH_MAX];
1228 char *ptr, *ptr_end;
1230 int idx = 0, len = 0, mntlen, fd;
1233 /* get the mount point */
1234 fp = setmntent(PROC_MOUNTS, "r");
1237 llapi_error(LLAPI_MSG_ERROR, rc,
1238 "cannot retrieve filesystem mount point");
1242 if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
1245 if (!llapi_is_lustre_mnt(&mnt))
1248 if ((want & WANT_INDEX) && (idx++ != index))
1251 mntlen = strlen(mnt.mnt_dir);
1252 ptr = strchr(mnt.mnt_fsname, '/');
1253 while (ptr && *ptr == '/')
1255 /* thanks to the call to llapi_is_lustre_mnt() above,
1256 * we are sure that mnt.mnt_fsname contains ":/",
1257 * so ptr should never be NULL */
1261 while (*ptr_end != '/' && *ptr_end != '\0')
1264 /* Check the fsname for a match, if given */
1265 if (!(want & WANT_FSNAME) && fsname != NULL &&
1266 (strlen(fsname) > 0) &&
1267 (strncmp(ptr, fsname, ptr_end - ptr) != 0))
1270 /* If the path isn't set return the first one we find */
1271 if (path == NULL || strlen(path) == 0) {
1272 strncpy(mntdir, mnt.mnt_dir, strlen(mnt.mnt_dir));
1273 mntdir[strlen(mnt.mnt_dir)] = '\0';
1274 if ((want & WANT_FSNAME) && fsname != NULL) {
1275 strncpy(fsname, ptr, ptr_end - ptr);
1276 fsname[ptr_end - ptr] = '\0';
1280 /* Otherwise find the longest matching path */
1281 } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
1282 (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
1283 strncpy(mntdir, mnt.mnt_dir, strlen(mnt.mnt_dir));
1284 mntdir[strlen(mnt.mnt_dir)] = '\0';
1286 if ((want & WANT_FSNAME) && fsname != NULL) {
1287 strncpy(fsname, ptr, ptr_end - ptr);
1288 fsname[ptr_end - ptr] = '\0';
1297 if ((want & WANT_PATH) && path != NULL) {
1298 strncpy(path, mntdir, strlen(mntdir));
1299 path[strlen(mntdir)] = '\0';
1301 if (want & WANT_FD) {
1302 fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
1305 llapi_error(LLAPI_MSG_ERROR, rc,
1306 "cannot open '%s': %s", mntdir,
1313 } else if (want & WANT_ERROR)
1314 llapi_err_noerrno(LLAPI_MSG_ERROR,
1315 "'%s' not on a mounted Lustre filesystem",
1316 (want & WANT_PATH) ? fsname : path);
1321 * search lustre mounts
1323 * Calling this function will return to the user the mount point, mntdir, and
1324 * the file system name, fsname, if the user passed a buffer to this routine.
1326 * The user inputs are pathname and index. If the pathname is supplied then
1327 * the value of the index will be ignored. The pathname will return data if
1328 * the pathname is located on a lustre mount. Index is used to pick which
1329 * mount point you want in the case of multiple mounted lustre file systems.
1330 * See function lfs_osts in lfs.c for an example of the index use.
1332 int llapi_search_mounts(const char *pathname, int index, char *mntdir,
1335 int want = WANT_PATH, idx = -1;
1337 if (!pathname || pathname[0] == '\0') {
1341 strcpy(mntdir, pathname);
1344 want |= WANT_FSNAME;
1345 return get_root_path(want, fsname, NULL, mntdir, idx);
1348 /* Given a path, find the corresponding Lustre fsname */
1349 int llapi_search_fsname(const char *pathname, char *fsname)
1354 path = realpath(pathname, NULL);
1356 char tmp[PATH_MAX - 1];
1362 if (pathname[0] != '/') {
1363 /* Need an absolute path, but realpath() only works for
1364 * pathnames that actually exist. We go through the
1365 * extra hurdle of dirname(getcwd() + pathname) in
1366 * case the relative pathname contains ".." in it. */
1367 char realpath[PATH_MAX - 1];
1369 if (getcwd(realpath, sizeof(realpath) - 2) == NULL) {
1371 llapi_error(LLAPI_MSG_ERROR, rc,
1372 "cannot get current working directory");
1376 rc = snprintf(tmp, sizeof(tmp), "%s/", realpath);
1377 if (rc >= sizeof(tmp)) {
1379 llapi_error(LLAPI_MSG_ERROR, rc,
1380 "invalid parent path '%s'",
1386 rc = snprintf(buf, sizeof(buf), "%s%s", tmp, pathname);
1387 if (rc >= sizeof(buf)) {
1389 llapi_error(LLAPI_MSG_ERROR, rc,
1390 "invalid path '%s'", pathname);
1393 path = realpath(buf, NULL);
1395 ptr = strrchr(buf, '/');
1397 llapi_error(LLAPI_MSG_ERROR |
1398 LLAPI_MSG_NO_ERRNO, 0,
1399 "cannot resolve path '%s'",
1404 path = realpath(buf, NULL);
1407 llapi_error(LLAPI_MSG_ERROR, rc,
1408 "cannot resolve path '%s'",
1414 rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1);
1419 int llapi_search_rootpath(char *pathname, const char *fsname)
1421 return get_root_path(WANT_PATH, (char *)fsname, NULL, pathname, -1);
1424 int llapi_getname(const char *path, char *buf, size_t size)
1426 struct obd_uuid uuid_buf;
1427 char *uuid = uuid_buf.uuid;
1429 int rc, len, fsname_len;
1431 memset(&uuid_buf, 0, sizeof(uuid_buf));
1432 rc = llapi_file_get_lov_uuid(path, &uuid_buf);
1437 * We want to turn testfs-clilov-ffff88002738bc00 into
1438 * testfs-ffff88002738bc00 in a portable way that doesn't depend
1439 * on what is after "-clilov-" as it may change in the future.
1440 * Unfortunately, the "fsname" part may contain a dash, so we
1441 * can't just skip to the first dash, and the "instance" may be a
1442 * UUID in the future, so we can't necessarily go to the last dash.
1444 cfg_instance = strstr(uuid, "-clilov-");
1448 fsname_len = cfg_instance - uuid;
1449 cfg_instance += strlen("-clilov-");
1450 len = snprintf(buf, size, "%.*s-%s", fsname_len, uuid, cfg_instance);
1459 * Get the list of pool members.
1460 * \param poolname string of format \<fsname\>.\<poolname\>
1461 * \param members caller-allocated array of char*
1462 * \param list_size size of the members array
1463 * \param buffer caller-allocated buffer for storing OST names
1464 * \param buffer_size size of the buffer
1466 * \return number of members retrieved for this pool
1467 * \retval -error failure
1469 int llapi_get_poolmembers(const char *poolname, char **members,
1470 int list_size, char *buffer, int buffer_size)
1472 char fsname[PATH_MAX];
1481 /* name is FSNAME.POOLNAME */
1482 if (strlen(poolname) >= sizeof(fsname))
1485 snprintf(fsname, sizeof(fsname), "%s", poolname);
1486 pool = strchr(fsname, '.');
1493 rc = poolpath(&pathname, fsname, NULL);
1495 llapi_error(LLAPI_MSG_ERROR, rc,
1496 "Lustre filesystem '%s' not found",
1501 llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
1502 rc = snprintf(buf, sizeof(buf), "%s/%s", pathname.gl_pathv[0], pool);
1503 cfs_free_param_data(&pathname);
1504 if (rc >= sizeof(buf))
1506 fd = fopen(buf, "r");
1509 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open %s", buf);
1514 while (fgets(buf, sizeof(buf), fd) != NULL) {
1515 if (nb_entries >= list_size) {
1519 buf[sizeof(buf) - 1] = '\0';
1521 tmp = strchr(buf, '\n');
1524 if (used + strlen(buf) + 1 > buffer_size) {
1529 strcpy(buffer + used, buf);
1530 members[nb_entries] = buffer + used;
1531 used += strlen(buf) + 1;
1541 * Get the list of pools in a filesystem.
1542 * \param name filesystem name or path
1543 * \param poollist caller-allocated array of char*
1544 * \param list_size size of the poollist array
1545 * \param buffer caller-allocated buffer for storing pool names
1546 * \param buffer_size size of the buffer
1548 * \return number of pools retrieved for this filesystem
1549 * \retval -error failure
1551 int llapi_get_poollist(const char *name, char **poollist, int list_size,
1552 char *buffer, int buffer_size)
1554 char rname[PATH_MAX];
1559 struct dirent *pool;
1561 unsigned int nb_entries = 0;
1562 unsigned int used = 0;
1565 /* initialize output array */
1566 for (i = 0; i < list_size; i++)
1569 /* is name a pathname ? */
1570 ptr = strchr(name, '/');
1572 /* only absolute pathname is supported */
1576 if (!realpath(name, rname)) {
1578 llapi_error(LLAPI_MSG_ERROR, rc, "invalid path '%s'",
1583 fsname = strdup(rname);
1587 rc = poolpath(&pathname, NULL, rname);
1589 /* name is FSNAME */
1590 fsname = strdup(name);
1593 rc = poolpath(&pathname, fsname, NULL);
1596 llapi_error(LLAPI_MSG_ERROR, rc,
1597 "Lustre filesystem '%s' not found", name);
1601 dir = opendir(pathname.gl_pathv[0]);
1604 llapi_error(LLAPI_MSG_ERROR, rc,
1605 "Could not open pool list for '%s'",
1612 pool = readdir(dir);
1618 /* ignore . and .. */
1619 if (!strcmp(pool->d_name, ".") || !strcmp(pool->d_name, ".."))
1622 /* check output bounds */
1623 if (nb_entries >= list_size) {
1625 goto free_dir_no_msg;
1628 /* +2 for '.' and final '\0' */
1629 if (used + strlen(pool->d_name) + strlen(fsname) + 2
1632 goto free_dir_no_msg;
1635 sprintf(buffer + used, "%s.%s", fsname, pool->d_name);
1636 poollist[nb_entries] = buffer + used;
1637 used += strlen(pool->d_name) + strlen(fsname) + 2;
1643 llapi_error(LLAPI_MSG_ERROR, rc,
1644 "Error reading pool list for '%s'", name);
1646 llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
1651 cfs_free_param_data(&pathname);
1654 return rc != 0 ? rc : nb_entries;
1657 /* wrapper for lfs.c and obd.c */
1658 int llapi_poollist(const char *name)
1660 /* list of pool names (assume that pool count is smaller
1662 char **list, *buffer = NULL, *fsname = (char *)name;
1663 char *poolname = NULL, *tmp = NULL, data[16];
1664 enum param_filter type = FILTER_BY_PATH;
1665 int obdcount, bufsize, rc, nb, i;
1670 if (name[0] != '/') {
1671 fsname = strdup(name);
1675 poolname = strchr(fsname, '.');
1678 type = FILTER_BY_FS_NAME;
1681 rc = get_lustre_param_value("lov", fsname, type, "numobd",
1682 data, sizeof(data));
1685 obdcount = atoi(data);
1687 /* Allocate space for each fsname-OST0000_UUID, 1 per OST,
1688 * and also an array to store the pointers for all that
1689 * allocated space. */
1691 bufsize = sizeof(struct obd_uuid) * obdcount;
1692 buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
1693 if (buffer == NULL) {
1697 list = (char **) (buffer + bufsize);
1700 /* name is a path or fsname */
1701 nb = llapi_get_poollist(name, list, obdcount,
1704 /* name is a pool name (<fsname>.<poolname>) */
1705 nb = llapi_get_poolmembers(name, list, obdcount,
1709 if (nb == -EOVERFLOW) {
1712 goto retry_get_pools;
1715 for (i = 0; i < nb; i++)
1716 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
1717 rc = (nb < 0 ? nb : 0);
1721 if (fsname != NULL && type == FILTER_BY_FS_NAME)
1726 typedef int (semantic_func_t)(char *path, DIR *parent, DIR **d,
1727 void *data, struct dirent64 *de);
1729 #define OBD_NOT_FOUND (-1)
1731 static void find_param_fini(struct find_param *param)
1733 if (param->fp_migrate)
1736 if (param->fp_obd_indexes) {
1737 free(param->fp_obd_indexes);
1738 param->fp_obd_indexes = NULL;
1741 if (param->fp_lmd) {
1742 free(param->fp_lmd);
1743 param->fp_lmd = NULL;
1746 if (param->fp_lmv_md) {
1747 free(param->fp_lmv_md);
1748 param->fp_lmv_md = NULL;
1752 static int common_param_init(struct find_param *param, char *path)
1754 int lum_size = get_mds_md_size(path);
1759 /* migrate has fp_lmv_md initialized outside */
1760 if (param->fp_migrate)
1763 if (lum_size < PATH_MAX + 1)
1764 lum_size = PATH_MAX + 1;
1766 param->fp_lum_size = lum_size;
1767 param->fp_lmd = calloc(1, sizeof(lstat_t) + lum_size);
1768 if (param->fp_lmd == NULL) {
1769 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1770 "error: allocation of %zu bytes for ioctl",
1771 sizeof(lstat_t) + param->fp_lum_size);
1775 param->fp_lmv_stripe_count = 256;
1776 param->fp_lmv_md = calloc(1,
1777 lmv_user_md_size(param->fp_lmv_stripe_count,
1778 LMV_USER_MAGIC_SPECIFIC));
1779 if (param->fp_lmv_md == NULL) {
1780 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1781 "error: allocation of %d bytes for ioctl",
1782 lmv_user_md_size(param->fp_lmv_stripe_count,
1783 LMV_USER_MAGIC_SPECIFIC));
1784 find_param_fini(param);
1788 param->fp_got_uuids = 0;
1789 param->fp_obd_indexes = NULL;
1790 param->fp_obd_index = OBD_NOT_FOUND;
1791 param->fp_mdt_index = OBD_NOT_FOUND;
1795 static int cb_common_fini(char *path, DIR *parent, DIR **dirp, void *data,
1796 struct dirent64 *de)
1798 struct find_param *param = data;
1804 /* set errno upon failure */
1805 static DIR *opendir_parent(const char *path)
1811 path_copy = strdup(path);
1812 if (path_copy == NULL)
1815 parent_path = dirname(path_copy);
1816 parent = opendir(parent_path);
1822 static int cb_get_dirstripe(char *path, DIR *d, struct find_param *param)
1827 param->fp_lmv_md->lum_stripe_count = param->fp_lmv_stripe_count;
1828 if (param->fp_get_default_lmv)
1829 param->fp_lmv_md->lum_magic = LMV_USER_MAGIC;
1831 param->fp_lmv_md->lum_magic = LMV_MAGIC_V1;
1833 ret = ioctl(dirfd(d), LL_IOC_LMV_GETSTRIPE, param->fp_lmv_md);
1834 if (errno == E2BIG && ret != 0) {
1838 stripe_count = (__u32)param->fp_lmv_md->lum_stripe_count;
1839 if (stripe_count <= param->fp_lmv_stripe_count)
1842 free(param->fp_lmv_md);
1843 param->fp_lmv_stripe_count = stripe_count;
1844 lmv_size = lmv_user_md_size(stripe_count,
1845 LMV_USER_MAGIC_SPECIFIC);
1846 param->fp_lmv_md = malloc(lmv_size);
1847 if (param->fp_lmv_md == NULL) {
1848 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1849 "error: allocation of %d bytes for ioctl",
1850 lmv_user_md_size(param->fp_lmv_stripe_count,
1851 LMV_USER_MAGIC_SPECIFIC));
1859 int get_lmd_info_fd(char *path, int parent_fd, int dir_fd,
1860 void *lmdbuf, int lmdlen, enum get_lmd_info_type type)
1862 struct lov_user_mds_data *lmd = lmdbuf;
1863 lstat_t *st = &lmd->lmd_st;
1866 if (parent_fd < 0 && dir_fd < 0)
1868 if (type != GET_LMD_INFO && type != GET_LMD_STRIPE)
1872 /* LL_IOC_MDC_GETINFO operates on the current directory inode
1873 * and returns struct lov_user_mds_data, while
1874 * LL_IOC_LOV_GETSTRIPE returns only struct lov_user_md.
1876 ret = ioctl(dir_fd, type == GET_LMD_INFO ? LL_IOC_MDC_GETINFO :
1877 LL_IOC_LOV_GETSTRIPE,
1879 } else if (parent_fd >= 0) {
1880 char *fname = strrchr(path, '/');
1882 /* IOC_MDC_GETFILEINFO takes as input the filename (relative to
1883 * the parent directory) and returns struct lov_user_mds_data,
1884 * while IOC_MDC_GETFILESTRIPE returns only struct lov_user_md.
1886 * This avoids opening, locking, and closing each file on the
1887 * client if that is not needed. Multiple of these ioctl() can
1888 * be done on the parent dir with a single open for all
1889 * files in that directory, and it also doesn't pollute the
1890 * client dcache with millions of dentries when traversing
1891 * a large filesystem.
1893 fname = (fname == NULL ? path : fname + 1);
1895 ret = snprintf(lmdbuf, lmdlen, "%s", fname);
1898 else if (ret >= lmdlen || ret++ == 0)
1901 ret = ioctl(parent_fd, type == GET_LMD_INFO ?
1902 IOC_MDC_GETFILEINFO :
1903 IOC_MDC_GETFILESTRIPE, lmdbuf);
1906 if (ret && type == GET_LMD_INFO) {
1907 if (errno == ENOTTY) {
1908 /* ioctl is not supported, it is not a lustre fs.
1909 * Do the regular lstat(2) instead.
1911 ret = lstat_f(path, st);
1914 llapi_error(LLAPI_MSG_ERROR, ret,
1915 "error: %s: lstat failed for %s",
1918 } else if (errno == ENOENT) {
1920 llapi_error(LLAPI_MSG_WARN, ret,
1921 "warning: %s does not exist", path);
1922 } else if (errno != EISDIR && errno != ENODATA) {
1924 llapi_error(LLAPI_MSG_ERROR, ret,
1925 "%s ioctl failed for %s.",
1926 dir_fd >= 0 ? "LL_IOC_MDC_GETINFO" :
1927 "IOC_MDC_GETFILEINFO", path);
1934 static int get_lmd_info(char *path, DIR *parent, DIR *dir, void *lmdbuf,
1935 int lmdlen, enum get_lmd_info_type type)
1941 parent_fd = dirfd(parent);
1943 dir_fd = dirfd(dir);
1945 return get_lmd_info_fd(path, parent_fd, dir_fd, lmdbuf, lmdlen, type);
1948 static int llapi_semantic_traverse(char *path, int size, DIR *parent,
1949 semantic_func_t sem_init,
1950 semantic_func_t sem_fini, void *data,
1951 struct dirent64 *de)
1953 struct find_param *param = (struct find_param *)data;
1954 struct dirent64 *dent;
1962 if (!d && errno != ENOTDIR) {
1964 llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
1967 } else if (!d && !parent) {
1968 /* ENOTDIR. Open the parent dir. */
1969 p = opendir_parent(path);
1976 if (sem_init && (ret = sem_init(path, parent ?: p, &d, data, de)))
1982 while ((dent = readdir64(d)) != NULL) {
1985 if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
1989 if ((len + dent->d_reclen + 2) > size) {
1990 llapi_err_noerrno(LLAPI_MSG_ERROR,
1991 "error: %s: string buffer too small",
1996 strcat(path, dent->d_name);
1998 if (dent->d_type == DT_UNKNOWN) {
1999 lstat_t *st = ¶m->fp_lmd->lmd_st;
2001 rc = get_lmd_info(path, d, NULL, param->fp_lmd,
2002 param->fp_lum_size, GET_LMD_INFO);
2004 dent->d_type = IFTODT(st->st_mode);
2011 switch (dent->d_type) {
2013 llapi_err_noerrno(LLAPI_MSG_ERROR,
2014 "error: %s: '%s' is UNKNOWN type %d",
2015 __func__, dent->d_name, dent->d_type);
2018 rc = llapi_semantic_traverse(path, size, d, sem_init,
2019 sem_fini, data, dent);
2020 if (rc != 0 && ret == 0)
2026 rc = sem_init(path, d, NULL, data, dent);
2027 if (rc < 0 && ret == 0) {
2032 if (sem_fini && rc == 0)
2033 sem_fini(path, d, NULL, data, dent);
2041 sem_fini(path, parent, &d, data, de);
2050 static int param_callback(char *path, semantic_func_t sem_init,
2051 semantic_func_t sem_fini, struct find_param *param)
2053 int ret, len = strlen(path);
2056 if (len > PATH_MAX) {
2058 llapi_error(LLAPI_MSG_ERROR, ret,
2059 "Path name '%s' is too long", path);
2063 buf = (char *)malloc(PATH_MAX + 1);
2067 snprintf(buf, PATH_MAX + 1, "%s", path);
2068 ret = common_param_init(param, buf);
2072 param->fp_depth = 0;
2074 ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
2075 sem_fini, param, NULL);
2077 find_param_fini(param);
2079 return ret < 0 ? ret : 0;
2082 int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
2084 int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
2088 llapi_error(LLAPI_MSG_ERROR, rc, "cannot get lov name");
2093 int llapi_file_fget_lmv_uuid(int fd, struct obd_uuid *lov_name)
2095 int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
2098 llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
2103 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
2107 fd = open(path, O_RDONLY | O_NONBLOCK);
2110 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open '%s'", path);
2114 rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
2120 int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lov_uuid)
2124 fd = open(path, O_RDONLY | O_NONBLOCK);
2127 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
2131 rc = llapi_file_fget_lmv_uuid(fd, lov_uuid);
2143 * If uuidp is NULL, return the number of available obd uuids.
2144 * If uuidp is non-NULL, then it will return the uuids of the obds. If
2145 * there are more OSTs than allocated to uuidp, then an error is returned with
2146 * the ost_count set to number of available obd uuids.
2148 static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
2149 int *ost_count, enum tgt_type type)
2151 char buf[PATH_MAX], format[32];
2152 int rc = 0, index = 0;
2153 struct obd_uuid name;
2157 /* Get the lov name */
2158 if (type == LOV_TYPE)
2159 rc = llapi_file_fget_lov_uuid(fd, &name);
2161 rc = llapi_file_fget_lmv_uuid(fd, &name);
2165 /* Now get the ost uuids */
2166 rc = get_lustre_param_path(type == LOV_TYPE ? "lov" : "lmv", name.uuid,
2167 FILTER_BY_EXACT, "target_obd", ¶m);
2171 fp = fopen(param.gl_pathv[0], "r");
2174 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
2179 snprintf(format, sizeof(format),
2180 "%%d: %%%zus", sizeof(uuidp[0].uuid) - 1);
2181 while (fgets(buf, sizeof(buf), fp) != NULL) {
2182 if (uuidp && (index < *ost_count)) {
2183 if (sscanf(buf, format, &index, uuidp[index].uuid) < 2)
2191 if (uuidp && (index > *ost_count))
2196 cfs_free_param_data(¶m);
2200 int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
2202 return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
2205 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
2210 root = open(mnt, O_RDONLY | O_DIRECTORY);
2213 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2218 rc = ioctl(root, LL_IOC_GETOBDCOUNT, count);
2226 /* Check if user specified value matches a real uuid. Ignore _UUID,
2227 * -osc-4ba41334, other trailing gunk in comparison.
2228 * @param real_uuid ends in "_UUID"
2229 * @param search_uuid may or may not end in "_UUID"
2231 int llapi_uuid_match(char *real_uuid, char *search_uuid)
2233 int cmplen = strlen(real_uuid);
2234 int searchlen = strlen(search_uuid);
2236 if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
2238 if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
2241 /* The UUIDs may legitimately be different lengths, if
2242 * the system was upgraded from an older version. */
2243 if (cmplen != searchlen)
2246 return (strncmp(search_uuid, real_uuid, cmplen) == 0);
2249 /* Here, param->fp_obd_uuid points to a single obduuid, the index of which is
2250 * returned in param->fp_obd_index */
2251 static int setup_obd_uuid(int fd, char *dname, struct find_param *param)
2253 struct obd_uuid obd_uuid;
2260 if (param->fp_got_uuids)
2263 /* Get the lov/lmv name */
2264 if (param->fp_get_lmv)
2265 rc = llapi_file_fget_lmv_uuid(fd, &obd_uuid);
2267 rc = llapi_file_fget_lov_uuid(fd, &obd_uuid);
2269 if (rc != -ENOTTY) {
2270 llapi_error(LLAPI_MSG_ERROR, rc,
2271 "error: can't get %s name: %s",
2272 param->fp_get_lmv ? "lmv" : "lov",
2280 param->fp_got_uuids = 1;
2282 /* Now get the ost uuids */
2283 rc = get_lustre_param_path(param->fp_get_lmv ? "lmv" : "lov",
2284 obd_uuid.uuid, FILTER_BY_EXACT,
2285 "target_obd", ¶m_data);
2289 fp = fopen(param_data.gl_pathv[0], "r");
2292 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
2293 param_data.gl_pathv[0]);
2297 if (!param->fp_obd_uuid && !param->fp_quiet && !param->fp_obds_printed)
2298 llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
2299 param->fp_get_lmv ? "MDTS" : "OBDS");
2301 snprintf(format, sizeof(format),
2302 "%%d: %%%zus", sizeof(obd_uuid.uuid) - 1);
2303 while (fgets(buf, sizeof(buf), fp) != NULL) {
2306 if (sscanf(buf, format, &index, obd_uuid.uuid) < 2)
2309 if (param->fp_obd_uuid) {
2310 if (llapi_uuid_match(obd_uuid.uuid,
2311 param->fp_obd_uuid->uuid)) {
2312 param->fp_obd_index = index;
2315 } else if (!param->fp_quiet && !param->fp_obds_printed) {
2316 /* Print everything */
2317 llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
2320 param->fp_obds_printed = 1;
2324 if (param->fp_obd_uuid && (param->fp_obd_index == OBD_NOT_FOUND)) {
2325 llapi_err_noerrno(LLAPI_MSG_ERROR,
2326 "error: %s: unknown obduuid: %s",
2327 __func__, param->fp_obd_uuid->uuid);
2331 cfs_free_param_data(¶m_data);
2335 /* In this case, param->fp_obd_uuid will be an array of obduuids and
2336 * obd index for all these obduuids will be returned in
2337 * param->fp_obd_indexes */
2338 static int setup_indexes(DIR *dir, char *path, struct obd_uuid *obduuids,
2339 int num_obds, int **obdindexes, int *obdindex,
2342 int ret, obdcount, obd_valid = 0, obdnum;
2344 struct obd_uuid *uuids = NULL;
2348 if (type == LOV_TYPE)
2349 ret = get_param_lov(path, "numobd", buf, sizeof(buf));
2351 ret = get_param_lmv(path, "numobd", buf, sizeof(buf));
2355 obdcount = atoi(buf);
2356 uuids = malloc(obdcount * sizeof(struct obd_uuid));
2361 ret = llapi_get_target_uuids(dirfd(dir), uuids, &obdcount, type);
2363 if (ret == -EOVERFLOW) {
2364 struct obd_uuid *uuids_temp;
2366 uuids_temp = realloc(uuids, obdcount *
2367 sizeof(struct obd_uuid));
2368 if (uuids_temp != NULL) {
2370 goto retry_get_uuids;
2375 llapi_error(LLAPI_MSG_ERROR, ret, "cannot get ost uuid");
2379 indexes = malloc(num_obds * sizeof(*obdindex));
2380 if (indexes == NULL) {
2385 for (obdnum = 0; obdnum < num_obds; obdnum++) {
2388 /* The user may have specified a simple index */
2389 i = strtol(obduuids[obdnum].uuid, &end, 0);
2390 if (end && *end == '\0' && i < obdcount) {
2391 indexes[obdnum] = i;
2394 for (i = 0; i < obdcount; i++) {
2395 if (llapi_uuid_match(uuids[i].uuid,
2396 obduuids[obdnum].uuid)) {
2397 indexes[obdnum] = i;
2403 if (i >= obdcount) {
2404 indexes[obdnum] = OBD_NOT_FOUND;
2405 llapi_err_noerrno(LLAPI_MSG_ERROR,
2406 "invalid obduuid '%s'",
2407 obduuids[obdnum].uuid);
2413 *obdindex = OBD_NOT_FOUND;
2415 *obdindex = obd_valid;
2417 *obdindexes = indexes;
2425 static int setup_target_indexes(DIR *dir, char *path, struct find_param *param)
2429 if (param->fp_mdt_uuid) {
2430 ret = setup_indexes(dir, path, param->fp_mdt_uuid,
2432 ¶m->fp_mdt_indexes,
2433 ¶m->fp_mdt_index, LMV_TYPE);
2438 if (param->fp_obd_uuid) {
2439 ret = setup_indexes(dir, path, param->fp_obd_uuid,
2441 ¶m->fp_obd_indexes,
2442 ¶m->fp_obd_index, LOV_TYPE);
2447 param->fp_got_uuids = 1;
2452 int llapi_ostlist(char *path, struct find_param *param)
2457 fd = open(path, O_RDONLY | O_DIRECTORY);
2461 ret = setup_obd_uuid(fd, path, param);
2468 * Tries to determine the default stripe attributes for a given filesystem. The
2469 * filesystem to check should be specified by fsname, or will be determined
2472 static int sattr_get_defaults(const char *const fsname,
2473 unsigned int *scount,
2474 unsigned int *ssize,
2475 unsigned int *soffset)
2481 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2482 "stripecount", val, sizeof(val));
2485 *scount = atoi(val);
2489 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2490 "stripesize", val, sizeof(val));
2497 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2498 "stripeoffset", val, sizeof(val));
2501 *soffset = atoi(val);
2508 * Tries to gather the default stripe attributes for a given filesystem. If
2509 * the attributes can be determined, they are cached for easy retreival the
2510 * next time they are needed. Only a single filesystem's attributes are
2513 int sattr_cache_get_defaults(const char *const fsname,
2514 const char *const pathname, unsigned int *scount,
2515 unsigned int *ssize, unsigned int *soffset)
2518 char fsname[PATH_MAX + 1];
2519 unsigned int stripecount;
2520 unsigned int stripesize;
2521 unsigned int stripeoffset;
2527 char fsname_buf[PATH_MAX + 1];
2528 unsigned int tmp[3];
2530 if (fsname == NULL) {
2531 rc = llapi_search_fsname(pathname, fsname_buf);
2535 snprintf(fsname_buf, sizeof(fsname_buf), "%s", fsname);
2538 if (strncmp(fsname_buf, cache.fsname, sizeof(fsname_buf) - 1) != 0) {
2540 * Ensure all 3 sattrs (count, size, and offset) are
2541 * successfully retrieved and stored in tmp before writing to
2544 rc = sattr_get_defaults(fsname_buf, &tmp[0], &tmp[1], &tmp[2]);
2548 cache.stripecount = tmp[0];
2549 cache.stripesize = tmp[1];
2550 cache.stripeoffset = tmp[2];
2551 snprintf(cache.fsname, sizeof(cache.fsname), "%s", fsname_buf);
2555 *scount = cache.stripecount;
2557 *ssize = cache.stripesize;
2559 *soffset = cache.stripeoffset;
2564 static char *layout2name(__u32 layout_pattern)
2566 if (layout_pattern == LOV_PATTERN_MDT)
2568 else if (layout_pattern == LOV_PATTERN_RAID0)
2570 else if (layout_pattern == (LOV_PATTERN_RAID0 | LOV_PATTERN_F_RELEASED))
2576 enum lov_dump_flags {
2577 LDF_IS_DIR = 0x0001,
2578 LDF_IS_RAW = 0x0002,
2579 LDF_INDENT = 0x0004,
2580 LDF_SKIP_OBJS = 0x0008,
2584 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
2585 struct lov_user_ost_data_v1 *objects,
2586 enum llapi_layout_verbose verbose,
2587 int depth, char *pool_name,
2588 enum lov_dump_flags flags)
2590 bool is_dir = flags & LDF_IS_DIR;
2591 bool is_raw = flags & LDF_IS_RAW;
2592 bool indent = flags & LDF_INDENT;
2593 bool yaml = flags & LDF_YAML;
2594 bool skip_objs = flags & LDF_SKIP_OBJS;
2595 char *prefix = is_dir ? "" : "lmm_";
2596 char *separator = "";
2597 char *space = indent ? " " : "";
2600 if (is_dir && lmm_oi_seq(&lum->lmm_oi) == FID_SEQ_LOV_DEFAULT) {
2601 lmm_oi_set_seq(&lum->lmm_oi, 0);
2602 if (!indent && (verbose & VERBOSE_DETAIL))
2603 llapi_printf(LLAPI_MSG_NORMAL, "%s(Default) ", space);
2606 if (!yaml && !indent && depth && path &&
2607 ((verbose != VERBOSE_OBJID) || !is_dir))
2608 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
2610 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
2611 llapi_printf(LLAPI_MSG_NORMAL, "%s%smagic: 0x%08X\n",
2612 space, prefix, lum->lmm_magic);
2613 llapi_printf(LLAPI_MSG_NORMAL, "%s%sseq: %#jx\n",
2615 (uintmax_t)lmm_oi_seq(&lum->lmm_oi));
2616 llapi_printf(LLAPI_MSG_NORMAL, "%s%sobject_id: %#jx\n",
2618 (uintmax_t)lmm_oi_id(&lum->lmm_oi));
2620 if ((verbose & (VERBOSE_DETAIL | VERBOSE_DFID)) && !is_dir) {
2625 if (verbose & ~VERBOSE_DFID)
2626 llapi_printf(LLAPI_MSG_NORMAL, "%slmm_fid: ",
2628 /* This needs a bit of hand-holding since old 1.x lmm_oi
2629 * have { oi.oi_id = mds_inum, oi.oi_seq = 0 } and 2.x lmm_oi
2630 * have { oi.oi_id = mds_oid, oi.oi_seq = mds_seq } instead of
2631 * a real FID. Ideally the 2.x code would have stored this
2632 * like a FID with { oi_id = mds_seq, oi_seq = mds_oid } so the
2633 * ostid union lu_fid { f_seq = mds_seq, f_oid = mds_oid }
2634 * worked properly (especially since IGIF FIDs use mds_inum as
2635 * the FID SEQ), but unfortunately that didn't happen.
2637 * Print it to look like an IGIF FID, even though the fields
2638 * are reversed on disk, so that it makes sense to userspace.
2640 * Don't use ostid_id() and ostid_seq(), since they assume the
2641 * oi_fid fields are in the right order. This is why there are
2642 * separate lmm_oi_seq() and lmm_oi_id() routines for this.
2644 * For newer layout types hopefully this will be a real FID. */
2645 seq = lmm_oi_seq(&lum->lmm_oi) == 0 ?
2646 lmm_oi_id(&lum->lmm_oi) : lmm_oi_seq(&lum->lmm_oi);
2647 oid = lmm_oi_seq(&lum->lmm_oi) == 0 ?
2648 0 : (__u32)lmm_oi_id(&lum->lmm_oi);
2649 ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
2651 llapi_printf(LLAPI_MSG_NORMAL, DFID_NOBRACE"\n",
2654 llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
2658 if (verbose & VERBOSE_STRIPE_COUNT) {
2659 if (verbose & ~VERBOSE_STRIPE_COUNT)
2660 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_count: ",
2663 if (!is_raw && lum->lmm_stripe_count == 0 &&
2664 lov_pattern(lum->lmm_pattern) != LOV_PATTERN_MDT) {
2665 unsigned int scount;
2666 rc = sattr_cache_get_defaults(NULL, path,
2670 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2673 llapi_error(LLAPI_MSG_ERROR, rc,
2674 "Cannot determine default"
2677 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2678 lum->lmm_stripe_count ==
2679 (typeof(lum->lmm_stripe_count))(-1)
2680 ? -1 : lum->lmm_stripe_count);
2683 llapi_printf(LLAPI_MSG_NORMAL, "%hd",
2684 (__s16)lum->lmm_stripe_count);
2686 if (!yaml && is_dir)
2692 if (verbose & VERBOSE_STRIPE_SIZE) {
2693 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2694 if (verbose & ~VERBOSE_STRIPE_SIZE)
2695 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_size: ",
2697 if (is_dir && !is_raw && lum->lmm_stripe_size == 0) {
2699 rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
2702 llapi_printf(LLAPI_MSG_NORMAL, "%u", ssize);
2704 llapi_error(LLAPI_MSG_ERROR, rc,
2705 "Cannot determine default"
2708 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2709 lum->lmm_stripe_size);
2711 if (!yaml && is_dir)
2717 if ((verbose & VERBOSE_PATTERN)) {
2718 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2719 if (verbose & ~VERBOSE_PATTERN)
2720 llapi_printf(LLAPI_MSG_NORMAL, "%s%spattern: ",
2722 if (lov_pattern_supported(lum->lmm_pattern))
2723 llapi_printf(LLAPI_MSG_NORMAL, "%s",
2724 layout2name(lum->lmm_pattern));
2726 llapi_printf(LLAPI_MSG_NORMAL, "%x", lum->lmm_pattern);
2727 separator = (!yaml && is_dir) ? " " : "\n";
2730 if ((verbose & VERBOSE_GENERATION) && !is_dir) {
2731 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2732 if (verbose & ~VERBOSE_GENERATION)
2733 llapi_printf(LLAPI_MSG_NORMAL, "%s%slayout_gen: ",
2735 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2736 skip_objs ? 0 : (int)lum->lmm_layout_gen);
2740 if (verbose & VERBOSE_STRIPE_OFFSET) {
2741 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2742 if (verbose & ~VERBOSE_STRIPE_OFFSET)
2743 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_offset: ",
2745 if (is_dir || skip_objs)
2746 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2747 lum->lmm_stripe_offset ==
2748 (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
2749 lum->lmm_stripe_offset);
2750 else if (lov_pattern(lum->lmm_pattern) == LOV_PATTERN_MDT)
2751 llapi_printf(LLAPI_MSG_NORMAL, "0");
2753 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2754 objects[0].l_ost_idx);
2755 if (!yaml && is_dir)
2761 if ((verbose & VERBOSE_POOL) && pool_name && (pool_name[0] != '\0')) {
2762 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2763 if (verbose & ~VERBOSE_POOL)
2764 llapi_printf(LLAPI_MSG_NORMAL, "%s%spool: ",
2766 llapi_printf(LLAPI_MSG_NORMAL, "%s", pool_name);
2767 if (!yaml && is_dir)
2773 if (strlen(separator) != 0)
2774 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2777 void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
2778 struct lov_user_ost_data_v1 *objects,
2779 char *path, int obdindex, int depth,
2780 enum llapi_layout_verbose verbose,
2781 enum lov_dump_flags flags)
2783 bool is_dir = flags & LDF_IS_DIR;
2784 bool indent = flags & LDF_INDENT;
2785 bool skip_objs = flags & LDF_SKIP_OBJS;
2786 bool yaml = flags & LDF_YAML;
2787 bool obdstripe = obdindex == OBD_NOT_FOUND;
2790 if (!obdstripe && !skip_objs) {
2791 for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
2792 if (obdindex == objects[i].l_ost_idx) {
2802 lov_dump_user_lmm_header(lum, path, objects, verbose, depth, pool_name,
2805 if (!is_dir && !skip_objs && (verbose & VERBOSE_OBJID) &&
2806 !(lum->lmm_pattern & LOV_PATTERN_F_RELEASED ||
2807 lov_pattern(lum->lmm_pattern) == LOV_PATTERN_MDT)) {
2808 char *space = " - ";
2811 llapi_printf(LLAPI_MSG_NORMAL,
2812 "%6slmm_objects:\n", " ");
2814 llapi_printf(LLAPI_MSG_NORMAL, "lmm_objects:\n");
2816 llapi_printf(LLAPI_MSG_NORMAL,
2817 "\tobdidx\t\t objid\t\t objid\t\t group\n");
2819 for (i = 0; i < lum->lmm_stripe_count; i++) {
2820 int idx = objects[i].l_ost_idx;
2821 long long oid = ostid_id(&objects[i].l_ost_oi);
2822 long long gr = ostid_seq(&objects[i].l_ost_oi);
2824 if (obdindex != OBD_NOT_FOUND && obdindex != idx)
2828 struct lu_fid fid = { 0 };
2830 ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
2831 llapi_printf(LLAPI_MSG_NORMAL,
2832 "%sl_ost_idx: %d\n", space, idx);
2833 llapi_printf(LLAPI_MSG_NORMAL,
2834 "%8sl_fid: "DFID_NOBRACE"\n",
2836 } else if (indent) {
2837 struct lu_fid fid = { 0 };
2839 ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
2840 llapi_printf(LLAPI_MSG_NORMAL,
2841 "%s%d: { l_ost_idx: %d, l_fid: "DFID" }\n",
2842 space, i, idx, PFID(&fid));
2845 sprintf(fmt, "%s%s%s\n",
2846 "\t%6u\t%14llu\t%#13llx\t",
2847 (fid_seq_is_rsvd(gr) ||
2848 fid_seq_is_mdt0(gr)) ?
2849 "%14llu" : "%#14llx", "%s");
2850 llapi_printf(LLAPI_MSG_NORMAL, fmt, idx, oid,
2852 obdindex == idx ? " *" : "");
2856 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2859 void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
2860 char *path, int obdindex, int depth,
2861 enum llapi_layout_verbose verbose,
2862 enum lov_dump_flags flags)
2864 struct lmv_user_mds_data *objects = lum->lum_objects;
2865 char *prefix = lum->lum_magic == LMV_USER_MAGIC ? "(Default)" : "";
2866 char *separator = "";
2867 bool yaml = flags & LDF_YAML;
2868 bool obdstripe = false;
2871 if (obdindex != OBD_NOT_FOUND) {
2872 if (lum->lum_stripe_count == 0) {
2873 if (obdindex == lum->lum_stripe_offset)
2876 for (i = 0; i < lum->lum_stripe_count; i++) {
2877 if (obdindex == objects[i].lum_mds) {
2878 llapi_printf(LLAPI_MSG_NORMAL,
2893 /* show all information default */
2895 if (lum->lum_magic == LMV_USER_MAGIC)
2896 verbose = VERBOSE_POOL | VERBOSE_STRIPE_COUNT |
2897 VERBOSE_STRIPE_OFFSET | VERBOSE_HASH_TYPE;
2899 verbose = VERBOSE_OBJID;
2902 if (depth && path && ((verbose != VERBOSE_OBJID)))
2903 llapi_printf(LLAPI_MSG_NORMAL, "%s%s\n", prefix, path);
2905 if (verbose & VERBOSE_STRIPE_COUNT) {
2906 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2907 if (verbose & ~VERBOSE_STRIPE_COUNT)
2908 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_count: ");
2909 llapi_printf(LLAPI_MSG_NORMAL, "%u",
2910 (int)lum->lum_stripe_count);
2911 if ((verbose & VERBOSE_STRIPE_OFFSET) && !yaml)
2917 if (verbose & VERBOSE_STRIPE_OFFSET) {
2918 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2919 if (verbose & ~VERBOSE_STRIPE_OFFSET)
2920 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_offset: ");
2921 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2922 (int)lum->lum_stripe_offset);
2923 if (verbose & VERBOSE_HASH_TYPE && !yaml)
2929 if (verbose & VERBOSE_HASH_TYPE) {
2930 unsigned int type = lum->lum_hash_type & LMV_HASH_TYPE_MASK;
2931 unsigned int flags = lum->lum_hash_type & ~LMV_HASH_TYPE_MASK;
2933 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2934 if (verbose & ~VERBOSE_HASH_TYPE)
2935 llapi_printf(LLAPI_MSG_NORMAL, "lmv_hash_type: ");
2936 if (type < LMV_HASH_TYPE_MAX)
2937 llapi_printf(LLAPI_MSG_NORMAL, "%s",
2938 mdt_hash_name[type]);
2940 llapi_printf(LLAPI_MSG_NORMAL, "%#x", type);
2942 if (flags & LMV_HASH_FLAG_MIGRATION)
2943 llapi_printf(LLAPI_MSG_NORMAL, ",migrating");
2944 if (flags & LMV_HASH_FLAG_DEAD)
2945 llapi_printf(LLAPI_MSG_NORMAL, ",dead");
2946 if (flags & LMV_HASH_FLAG_BAD_TYPE)
2947 llapi_printf(LLAPI_MSG_NORMAL, ",bad_type");
2948 if (flags & LMV_HASH_FLAG_LOST_LMV)
2949 llapi_printf(LLAPI_MSG_NORMAL, ",lost_lmv");
2954 if (verbose & VERBOSE_OBJID && lum->lum_magic != LMV_USER_MAGIC) {
2955 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2956 if (lum->lum_stripe_count > 0)
2957 llapi_printf(LLAPI_MSG_NORMAL,
2958 "mdtidx\t\t FID[seq:oid:ver]\n");
2959 for (i = 0; i < lum->lum_stripe_count; i++) {
2960 int idx = objects[i].lum_mds;
2961 struct lu_fid *fid = &objects[i].lum_fid;
2962 if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
2963 llapi_printf(LLAPI_MSG_NORMAL,
2964 "%6u\t\t "DFID"\t\t%s\n",
2966 obdindex == idx ? " *" : "");
2971 if ((verbose & VERBOSE_POOL) && pool_name != NULL &&
2972 pool_name[0] != '\0') {
2973 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2974 if (verbose & ~VERBOSE_POOL)
2975 llapi_printf(LLAPI_MSG_NORMAL, "%slmv_pool: ",
2977 llapi_printf(LLAPI_MSG_NORMAL, "%s%c ", pool_name, ' ');
2981 if (!(verbose & VERBOSE_OBJID) || lum->lum_magic == LMV_USER_MAGIC)
2982 llapi_printf(LLAPI_MSG_NORMAL, "\n");
2985 static void lov_dump_comp_v1_header(struct find_param *param, char *path,
2986 enum lov_dump_flags flags)
2988 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
2989 int depth = param->fp_max_depth;
2990 enum llapi_layout_verbose verbose = param->fp_verbose;
2991 bool yaml = flags & LDF_YAML;
2993 if (depth && path && ((verbose != VERBOSE_OBJID) ||
2994 !(flags & LDF_IS_DIR)) && !yaml)
2995 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
2997 if (verbose & VERBOSE_DETAIL) {
2998 llapi_printf(LLAPI_MSG_NORMAL, "composite_header:\n");
2999 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_magic: 0x%08X\n",
3000 " ", comp_v1->lcm_magic);
3001 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_size: %u\n",
3002 " ", comp_v1->lcm_size);
3003 if (flags & LDF_IS_DIR)
3004 llapi_printf(LLAPI_MSG_NORMAL,
3005 "%2slcm_flags: %s\n", " ",
3006 comp_v1->lcm_mirror_count > 0 ?
3009 llapi_printf(LLAPI_MSG_NORMAL,
3010 "%2slcm_flags: %s\n", " ",
3011 llapi_layout_flags_string(comp_v1->lcm_flags));
3014 if (verbose & VERBOSE_GENERATION) {
3015 if (verbose & ~VERBOSE_GENERATION)
3016 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_layout_gen: ",
3018 llapi_printf(LLAPI_MSG_NORMAL, "%u\n", comp_v1->lcm_layout_gen);
3021 if (verbose & VERBOSE_MIRROR_COUNT) {
3022 if (verbose & ~VERBOSE_MIRROR_COUNT)
3023 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_mirror_count: ",
3025 llapi_printf(LLAPI_MSG_NORMAL, "%u\n",
3026 comp_v1->lcm_magic == LOV_USER_MAGIC_COMP_V1 ?
3027 comp_v1->lcm_mirror_count + 1 : 1);
3030 if (verbose & VERBOSE_COMP_COUNT) {
3031 if (verbose & ~VERBOSE_COMP_COUNT)
3032 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_entry_count: ",
3034 llapi_printf(LLAPI_MSG_NORMAL, "%u\n",
3035 comp_v1->lcm_magic == LOV_USER_MAGIC_COMP_V1 ?
3036 comp_v1->lcm_entry_count : 0);
3039 if (verbose & VERBOSE_DETAIL && !yaml)
3040 llapi_printf(LLAPI_MSG_NORMAL, "components:\n");
3043 static void lcme_flags2str(__u32 comp_flags)
3049 llapi_printf(LLAPI_MSG_NORMAL, "0");
3052 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
3053 if (comp_flags & comp_flags_table[i].cfn_flag) {
3055 llapi_printf(LLAPI_MSG_NORMAL, ",");
3056 llapi_printf(LLAPI_MSG_NORMAL, "%s",
3057 comp_flags_table[i].cfn_name);
3058 comp_flags &= ~comp_flags_table[i].cfn_flag;
3064 llapi_printf(LLAPI_MSG_NORMAL, ",");
3065 llapi_printf(LLAPI_MSG_NORMAL, "%#x", comp_flags);
3069 static void lov_dump_comp_v1_entry(struct find_param *param,
3070 enum lov_dump_flags flags, int index)
3072 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
3073 struct lov_comp_md_entry_v1 *entry;
3074 char *separator = "";
3075 enum llapi_layout_verbose verbose = param->fp_verbose;
3076 bool yaml = flags & LDF_YAML;
3078 entry = &comp_v1->lcm_entries[index];
3081 llapi_printf(LLAPI_MSG_NORMAL, "%2scomponent%d:\n", " ", index);
3083 if (verbose & VERBOSE_COMP_ID) {
3084 if (verbose & VERBOSE_DETAIL && !yaml)
3085 llapi_printf(LLAPI_MSG_NORMAL,
3086 "%slcme_id: ", " - ");
3087 else if (verbose & ~VERBOSE_COMP_ID)
3088 llapi_printf(LLAPI_MSG_NORMAL,
3089 "%4slcme_id: ", " ");
3090 if (entry->lcme_id != LCME_ID_INVAL)
3091 llapi_printf(LLAPI_MSG_NORMAL, "%u", entry->lcme_id);
3093 llapi_printf(LLAPI_MSG_NORMAL, "N/A");
3097 if (verbose & VERBOSE_MIRROR_ID) {
3098 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3099 if (verbose & ~VERBOSE_MIRROR_ID)
3100 llapi_printf(LLAPI_MSG_NORMAL,
3101 "%4slcme_mirror_id: ", " ");
3102 if (entry->lcme_id != LCME_ID_INVAL)
3103 llapi_printf(LLAPI_MSG_NORMAL, "%u",
3104 mirror_id_of(entry->lcme_id));
3106 llapi_printf(LLAPI_MSG_NORMAL, "N/A");
3110 if (verbose & VERBOSE_COMP_FLAGS) {
3111 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3112 if (verbose & ~VERBOSE_COMP_FLAGS)
3113 llapi_printf(LLAPI_MSG_NORMAL,
3114 "%4slcme_flags: ", " ");
3115 lcme_flags2str(entry->lcme_flags);
3118 /* print snapshot timestamp if its a nosync comp */
3119 if ((verbose & VERBOSE_COMP_FLAGS) &&
3120 (entry->lcme_flags & LCME_FL_NOSYNC)) {
3121 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3122 if (verbose & ~VERBOSE_COMP_FLAGS)
3123 llapi_printf(LLAPI_MSG_NORMAL,
3124 "%4slcme_timestamp: ", " ");
3126 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3127 entry->lcme_timestamp);
3129 time_t stamp = entry->lcme_timestamp;
3130 char *date_str = asctime(localtime(&stamp));
3132 date_str[strlen(date_str) - 1] = '\0';
3133 llapi_printf(LLAPI_MSG_NORMAL, "'%s'", date_str);
3139 if (verbose & VERBOSE_COMP_START) {
3140 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3141 if (verbose & ~VERBOSE_COMP_START)
3142 llapi_printf(LLAPI_MSG_NORMAL,
3143 "%4slcme_extent.e_start: ", " ");
3144 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3145 entry->lcme_extent.e_start);
3149 if (verbose & VERBOSE_COMP_END) {
3150 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3151 if (verbose & ~VERBOSE_COMP_END)
3152 llapi_printf(LLAPI_MSG_NORMAL,
3153 "%4slcme_extent.e_end: ", " ");
3154 if (entry->lcme_extent.e_end == LUSTRE_EOF)
3155 llapi_printf(LLAPI_MSG_NORMAL, "%s", "EOF");
3157 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3158 entry->lcme_extent.e_end);
3163 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3164 llapi_printf(LLAPI_MSG_NORMAL, "%4ssub_layout:\n", " ");
3165 } else if (verbose & VERBOSE_DETAIL) {
3166 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3167 llapi_printf(LLAPI_MSG_NORMAL, "%4slcme_offset: %u\n",
3168 " ", entry->lcme_offset);
3169 llapi_printf(LLAPI_MSG_NORMAL, "%4slcme_size: %u\n",
3170 " ", entry->lcme_size);
3171 llapi_printf(LLAPI_MSG_NORMAL, "%4ssub_layout:\n", " ");
3173 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3177 /* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
3178 * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
3180 * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
3181 * The table below gives the answers for the specified parameters (value and
3182 * sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
3183 * --------------------------------------
3184 * 1 | file > limit; sign > 0 | -1 / -1 |
3185 * 2 | file = limit; sign > 0 | -1 / -1 |
3186 * 3 | file < limit; sign > 0 | ? / 1 |
3187 * 4 | file > limit; sign = 0 | -1 / -1 |
3188 * 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
3189 * 6 | file < limit; sign = 0 | ? / -1 |
3190 * 7 | file > limit; sign < 0 | 1 / 1 |
3191 * 8 | file = limit; sign < 0 | ? / -1 |
3192 * 9 | file < limit; sign < 0 | ? / -1 |
3193 * --------------------------------------
3194 * Note: 5th actually means that the value is within the interval
3195 * (limit - margin, limit]. */
3196 static int find_value_cmp(unsigned long long file, unsigned long long limit,
3197 int sign, int negopt, unsigned long long margin,
3203 /* Drop the fraction of margin (of days or size). */
3204 if (file + margin <= limit)
3206 } else if (sign == 0) {
3207 if (file <= limit && file + margin > limit)
3209 else if (file + margin <= limit)
3211 } else if (sign < 0) {
3218 return negopt ? ~ret + 1 : ret;
3221 static inline struct lov_user_md *
3222 lov_comp_entry(struct lov_comp_md_v1 *comp_v1, int ent_idx)
3224 return (struct lov_user_md *)((char *)comp_v1 +
3225 comp_v1->lcm_entries[ent_idx].lcme_offset);
3228 static inline struct lov_user_ost_data_v1 *
3229 lov_v1v3_objects(struct lov_user_md *v1)
3231 if (v1->lmm_magic == LOV_USER_MAGIC_V3)
3232 return ((struct lov_user_md_v3 *)v1)->lmm_objects;
3234 return v1->lmm_objects;
3238 lov_v1v3_pool_name(struct lov_user_md *v1, char *pool_name)
3240 if (v1->lmm_magic == LOV_USER_MAGIC_V3)
3241 snprintf(pool_name, LOV_MAXPOOLNAME, "%s",
3242 ((struct lov_user_md_v3 *)v1)->lmm_pool_name);
3244 pool_name[0] = '\0';
3248 print_last_init_comp(struct find_param *param)
3250 /* print all component info */
3251 if ((param->fp_verbose & VERBOSE_DEFAULT) == VERBOSE_DEFAULT)
3254 /* print specific component info */
3255 if (param->fp_check_comp_id || param->fp_check_comp_flags ||
3256 param->fp_check_comp_start || param->fp_check_comp_end ||
3257 param->fp_check_mirror_id || param->fp_check_mirror_index)
3263 static int find_comp_end_cmp(unsigned long long end, struct find_param *param)
3267 if (param->fp_comp_end == LUSTRE_EOF) {
3268 if (param->fp_comp_end_sign == 0) /* equal to EOF */
3269 match = end == LUSTRE_EOF ? 1 : -1;
3270 else if (param->fp_comp_end_sign > 0) /* at most EOF */
3271 match = end == LUSTRE_EOF ? -1 : 1;
3272 else /* at least EOF */
3274 if (param->fp_exclude_comp_end)
3277 unsigned long long margin;
3279 margin = end == LUSTRE_EOF ? 0 : param->fp_comp_end_units;
3280 match = find_value_cmp(end, param->fp_comp_end,
3281 param->fp_comp_end_sign,
3282 param->fp_exclude_comp_end, margin, 0);
3289 * An example of "getstripe -v" for a two components PFL file:
3292 * lcm_magic: 0x0BD60BD0
3296 * lcm_entry_count: 2
3300 * lcme_extent.e_start: 0
3301 * lcme_extent.e_end: 1048576
3305 * lmm_magic: 0x0BD10BD0
3306 * lmm_seq: 0x200000401
3307 * lmm_object_id: 0x1
3308 * lmm_fid: [0x200000401:0x1:0x0]
3309 * lmm_stripe_count: 1
3310 * lmm_stripe_size: 1048576
3311 * lmm_pattern: raid0
3313 * lmm_stripe_offset: 0
3315 * - 0: { l_ost_idx: 0, l_fid: [0x100000000:0x2:0x0] }
3319 * lcme_extent.e_start: 1048576
3320 * lcme_extent.e_end: EOF
3324 * lmm_magic: 0x0BD10BD0
3325 * lmm_seq: 0x200000401
3326 * lmm_object_id: 0x1
3327 * lmm_fid: [0x200000401:0x1:0x0]
3328 * lmm_stripe_count: 2
3329 * lmm_stripe_size: 1048576
3330 * lmm_pattern: raid0
3332 * lmm_stripe_offset: 1
3334 * - 0: { l_ost_idx: 1, l_fid: [0x100010000:0x2:0x0] }
3335 * - 1: { l_ost_idx: 0, l_fid: [0x100000000:0x3:0x0] }
3337 static void lov_dump_comp_v1(struct find_param *param, char *path,
3338 enum lov_dump_flags flags)
3340 struct lov_comp_md_entry_v1 *entry;
3341 struct lov_user_ost_data_v1 *objects;
3342 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
3343 struct lov_user_md_v1 *v1;
3344 char pool_name[LOV_MAXPOOLNAME + 1];
3345 int obdindex = param->fp_obd_index;
3347 bool obdstripe = false;
3348 __u16 mirror_index = 0;
3349 __u16 mirror_id = 0;
3351 if (obdindex != OBD_NOT_FOUND) {
3352 for (i = 0; !(flags & LDF_IS_DIR) && !obdstripe &&
3353 i < comp_v1->lcm_entry_count; i++) {
3354 if (!(comp_v1->lcm_entries[i].lcme_flags &
3358 v1 = lov_comp_entry(comp_v1, i);
3359 objects = lov_v1v3_objects(v1);
3361 for (j = 0; j < v1->lmm_stripe_count; j++) {
3362 if (obdindex == objects[j].l_ost_idx) {
3375 lov_dump_comp_v1_header(param, path, flags);
3377 flags |= LDF_INDENT;
3379 for (i = 0; i < comp_v1->lcm_entry_count; i++) {
3380 entry = &comp_v1->lcm_entries[i];
3382 if (param->fp_check_comp_flags) {
3383 if (((param->fp_comp_flags & entry->lcme_flags) !=
3384 param->fp_comp_flags) ||
3385 (param->fp_comp_neg_flags & entry->lcme_flags))
3389 if (param->fp_check_comp_id &&
3390 param->fp_comp_id != entry->lcme_id)
3393 if (param->fp_check_comp_start) {
3394 match = find_value_cmp(entry->lcme_extent.e_start,
3395 param->fp_comp_start,
3396 param->fp_comp_start_sign,
3398 param->fp_comp_start_units, 0);
3403 if (param->fp_check_comp_end) {
3404 match = find_comp_end_cmp(entry->lcme_extent.e_end,
3410 if (param->fp_check_mirror_index) {
3411 if (mirror_id != mirror_id_of(entry->lcme_id)) {
3413 mirror_id = mirror_id_of(entry->lcme_id);
3416 match = find_value_cmp(mirror_index,
3417 param->fp_mirror_index,
3418 param->fp_mirror_index_sign,
3419 param->fp_exclude_mirror_index,
3423 } else if (param->fp_check_mirror_id) {
3424 if (mirror_id != mirror_id_of(entry->lcme_id))
3425 mirror_id = mirror_id_of(entry->lcme_id);
3427 match = find_value_cmp(mirror_id,
3428 param->fp_mirror_id,
3429 param->fp_mirror_id_sign,
3430 param->fp_exclude_mirror_id,
3436 if (print_last_init_comp(param)) {
3438 * if part of stripe info is needed, we'd print only
3439 * the last instantiated component info.
3441 if (entry->lcme_flags & LCME_FL_INIT)
3447 if (entry->lcme_flags & LCME_FL_INIT) {
3448 if (obdindex != OBD_NOT_FOUND) {
3449 flags |= LDF_SKIP_OBJS;
3450 v1 = lov_comp_entry(comp_v1, i);
3451 objects = lov_v1v3_objects(v1);
3453 for (j = 0; j < v1->lmm_stripe_count; j++) {
3454 if (obdindex == objects[j].l_ost_idx) {
3455 flags &= ~LDF_SKIP_OBJS;
3460 flags &= ~LDF_SKIP_OBJS;
3463 flags |= LDF_SKIP_OBJS;
3466 if (obdindex != OBD_NOT_FOUND && (flags & LDF_SKIP_OBJS))
3468 lov_dump_comp_v1_entry(param, flags, i);
3470 v1 = lov_comp_entry(comp_v1, i);
3471 objects = lov_v1v3_objects(v1);
3472 lov_v1v3_pool_name(v1, pool_name);
3474 lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
3475 param->fp_max_depth, param->fp_verbose,
3478 if (print_last_init_comp(param)) {
3480 * directory layout contains only layout template, print the
3484 i = comp_v1->lcm_entry_count - 1;
3487 flags &= ~LDF_SKIP_OBJS;
3489 lov_dump_comp_v1_entry(param, flags, i);
3491 v1 = lov_comp_entry(comp_v1, i);
3492 objects = lov_v1v3_objects(v1);
3493 lov_v1v3_pool_name(v1, pool_name);
3495 lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
3496 param->fp_max_depth, param->fp_verbose,
3501 #define VERBOSE_COMP_OPTS (VERBOSE_COMP_COUNT | VERBOSE_COMP_ID | \
3502 VERBOSE_COMP_START | VERBOSE_COMP_END | \
3505 static inline bool has_any_comp_options(struct find_param *param)
3507 enum llapi_layout_verbose verbose = param->fp_verbose;
3509 if (param->fp_check_comp_id || param->fp_check_comp_count ||
3510 param->fp_check_comp_start || param->fp_check_comp_end ||
3511 param->fp_check_comp_flags)
3514 /* show full layout information, not component specific */
3515 if ((verbose & ~VERBOSE_DETAIL) == VERBOSE_DEFAULT)
3518 return verbose & VERBOSE_COMP_OPTS;
3521 struct lov_user_mds_data *lov_forge_comp_v1(struct lov_user_mds_data *orig,
3524 struct lov_user_md *lum = &orig->lmd_lmm;
3525 struct lov_user_mds_data *new;
3526 struct lov_comp_md_v1 *comp_v1;
3527 struct lov_comp_md_entry_v1 *ent;
3528 int lum_off = sizeof(*comp_v1) + sizeof(*ent);
3529 int lum_size = lov_user_md_size(is_dir ? 0 : lum->lmm_stripe_count,
3532 new = malloc(sizeof(lstat_t) + lum_off + lum_size);
3534 llapi_printf(LLAPI_MSG_NORMAL, "out of memory\n");
3538 memcpy(new, orig, sizeof(lstat_t));
3540 comp_v1 = (struct lov_comp_md_v1 *)&new->lmd_lmm;
3541 comp_v1->lcm_magic = lum->lmm_magic;
3542 comp_v1->lcm_size = lum_off + lum_size;
3543 comp_v1->lcm_layout_gen = is_dir ? 0 : lum->lmm_layout_gen;
3544 comp_v1->lcm_flags = 0;
3545 comp_v1->lcm_entry_count = 1;
3547 ent = &comp_v1->lcm_entries[0];
3549 ent->lcme_flags = is_dir ? 0 : LCME_FL_INIT;
3550 ent->lcme_extent.e_start = 0;
3551 ent->lcme_extent.e_end = LUSTRE_EOF;
3552 ent->lcme_offset = lum_off;
3553 ent->lcme_size = lum_size;
3555 memcpy((char *)comp_v1 + lum_off, lum, lum_size);
3560 static void lov_dump_plain_user_lmm(struct find_param *param, char *path,
3561 enum lov_dump_flags flags)
3563 __u32 magic = *(__u32 *)¶m->fp_lmd->lmd_lmm;
3565 if (has_any_comp_options(param)) {
3566 struct lov_user_mds_data *new_lmd, *orig_lmd;
3568 orig_lmd = param->fp_lmd;
3569 new_lmd = lov_forge_comp_v1(orig_lmd, flags & LDF_IS_DIR);
3570 if (new_lmd != NULL) {
3571 param->fp_lmd = new_lmd;
3572 lov_dump_comp_v1(param, path, flags);
3573 param->fp_lmd = orig_lmd;
3579 if (magic == LOV_USER_MAGIC_V1) {
3580 lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm, NULL,
3581 param->fp_lmd->lmd_lmm.lmm_objects,
3582 path, param->fp_obd_index,
3583 param->fp_max_depth, param->fp_verbose,
3586 char pool_name[LOV_MAXPOOLNAME + 1];
3587 struct lov_user_ost_data_v1 *objects;
3588 struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
3590 snprintf(pool_name, sizeof(pool_name), "%s",
3591 lmmv3->lmm_pool_name);
3592 objects = lmmv3->lmm_objects;
3593 lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm, pool_name,
3594 objects, path, param->fp_obd_index,
3595 param->fp_max_depth, param->fp_verbose,
3600 static uint32_t lov_check_foreign_type(uint32_t foreign_type)
3604 for (i = 0; i < LOV_FOREIGN_TYPE_UNKNOWN; i++) {
3605 if (lov_foreign_type[i].lft_name == NULL)
3607 if (foreign_type == lov_foreign_type[i].lft_type)
3611 return LOV_FOREIGN_TYPE_UNKNOWN;
3614 static void lov_dump_foreign_lmm(struct find_param *param, char *path,
3615 enum lov_dump_flags flags)
3617 struct lov_foreign_md *lfm = (void *)¶m->fp_lmd->lmd_lmm;
3618 bool yaml = flags & LDF_YAML;
3620 if (!yaml && param->fp_depth && path)
3621 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
3623 if (param->fp_verbose & VERBOSE_DETAIL) {
3624 uint32_t type = lov_check_foreign_type(lfm->lfm_type);
3626 llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic: 0x%08X\n",
3628 llapi_printf(LLAPI_MSG_NORMAL, "lfm_length: %u\n",
3630 llapi_printf(LLAPI_MSG_NORMAL, "lfm_type: 0x%08X",
3632 if (type < LOV_FOREIGN_TYPE_UNKNOWN)
3633 llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
3634 lov_foreign_type[type].lft_name);
3636 llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
3638 llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags: 0x%08X\n",
3642 llapi_printf(LLAPI_MSG_NORMAL, "lfm_value: '%.*s'\n",
3643 lfm->lfm_length, lfm->lfm_value);
3644 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3647 static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
3648 enum lov_dump_flags flags)
3652 if (param->fp_get_lmv || param->fp_get_default_lmv)
3653 magic = (__u32)param->fp_lmv_md->lum_magic;
3655 magic = *(__u32 *)¶m->fp_lmd->lmd_lmm; /* lum->lmm_magic */
3658 flags |= LDF_IS_RAW;
3663 case LOV_USER_MAGIC_V1:
3664 case LOV_USER_MAGIC_V3:
3665 case LOV_USER_MAGIC_SPECIFIC:
3666 lov_dump_plain_user_lmm(param, path, flags);
3668 case LOV_USER_MAGIC_FOREIGN:
3669 lov_dump_foreign_lmm(param, path, flags);
3672 case LMV_USER_MAGIC: {
3673 char pool_name[LOV_MAXPOOLNAME + 1];
3674 struct lmv_user_md *lum;
3676 lum = (struct lmv_user_md *)param->fp_lmv_md;
3677 snprintf(pool_name, sizeof(pool_name), "%s",
3678 lum->lum_pool_name);
3679 lmv_dump_user_lmm(lum, pool_name, path, param->fp_obd_index,
3680 param->fp_max_depth, param->fp_verbose,
3684 case LOV_USER_MAGIC_COMP_V1:
3685 lov_dump_comp_v1(param, path, flags);
3688 llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic: %#x "
3689 "(expecting one of %#x %#x %#x %#x)\n",
3690 *(__u32 *)¶m->fp_lmd->lmd_lmm,
3691 LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3,
3692 LMV_USER_MAGIC, LMV_MAGIC_V1);
3697 int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
3703 fname = strrchr(path, '/');
3705 /* It should be a file (or other non-directory) */
3706 if (fname == NULL) {
3707 dname = (char *)malloc(2);
3711 fname = (char *)path;
3713 dname = (char *)malloc(fname - path + 1);
3716 strncpy(dname, path, fname - path);
3717 dname[fname - path] = '\0';
3721 fd = open(dname, O_RDONLY | O_NONBLOCK);
3727 strcpy((char *)lum, fname);
3728 if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
3731 if (close(fd) == -1 && rc == 0)
3739 int llapi_file_lookup(int dirfd, const char *name)
3741 struct obd_ioctl_data data = { 0 };
3746 if (dirfd < 0 || name == NULL)
3749 data.ioc_version = OBD_IOCTL_VERSION;
3750 data.ioc_len = sizeof(data);
3751 data.ioc_inlbuf1 = (char *)name;
3752 data.ioc_inllen1 = strlen(name) + 1;
3754 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
3756 llapi_error(LLAPI_MSG_ERROR, rc,
3757 "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
3762 rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
3768 /* Check if the file time matches all the given criteria (e.g. --atime +/-N).
3769 * Return -1 or 1 if file timestamp does not or does match the given criteria
3770 * correspondingly. Return 0 if the MDS time is being checked and there are
3771 * attributes on OSTs and it is not yet clear if the timespamp matches.
3773 * If 0 is returned, we need to do another RPC to the OSTs to obtain the
3774 * updated timestamps. */
3775 static int find_time_check(lstat_t *st, struct find_param *param, int mds)
3780 /* Check if file is accepted. */
3781 if (param->fp_atime) {
3782 rc2 = find_value_cmp(st->st_atime, param->fp_atime,
3783 param->fp_asign, param->fp_exclude_atime,
3784 param->fp_time_margin, mds);
3790 if (param->fp_mtime) {
3791 rc2 = find_value_cmp(st->st_mtime, param->fp_mtime,
3792 param->fp_msign, param->fp_exclude_mtime,
3793 param->fp_time_margin, mds);
3797 /* If the previous check matches, but this one is not yet clear,
3798 * we should return 0 to do an RPC on OSTs. */
3803 if (param->fp_ctime) {
3804 rc2 = find_value_cmp(st->st_ctime, param->fp_ctime,
3805 param->fp_csign, param->fp_exclude_ctime,
3806 param->fp_time_margin, mds);
3810 /* If the previous check matches, but this one is not yet clear,
3811 * we should return 0 to do an RPC on OSTs. */
3820 * Check whether the stripes matches the indexes user provided
3824 static int check_obd_match(struct find_param *param)
3826 struct lov_user_ost_data_v1 *objects;
3827 struct lov_comp_md_v1 *comp_v1 = NULL;
3828 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
3829 lstat_t *st = ¶m->fp_lmd->lmd_st;
3830 int i, j, k, count = 1;
3832 if (param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND)
3835 if (!S_ISREG(st->st_mode))
3838 /* exclude foreign */
3839 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
3840 return param->fp_exclude_obd;
3842 /* Only those files should be accepted, which have a
3843 * stripe on the specified OST. */
3844 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
3845 comp_v1 = (struct lov_comp_md_v1 *)v1;
3846 count = comp_v1->lcm_entry_count;
3849 for (i = 0; i < count; i++) {
3851 v1 = lov_comp_entry(comp_v1, i);
3853 objects = lov_v1v3_objects(v1);
3855 for (j = 0; j < v1->lmm_stripe_count; j++) {
3856 if (comp_v1 && !(comp_v1->lcm_entries[i].lcme_flags &
3859 for (k = 0; k < param->fp_num_obds; k++) {
3860 if (param->fp_obd_indexes[k] ==
3861 objects[j].l_ost_idx)
3862 return !param->fp_exclude_obd;
3867 return param->fp_exclude_obd;
3870 static int check_mdt_match(struct find_param *param)
3874 if (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND)
3877 /* FIXME: For striped dir, we should get stripe information and check */
3878 for (i = 0; i < param->fp_num_mdts; i++) {
3879 if (param->fp_mdt_indexes[i] == param->fp_file_mdt_index)
3880 return !param->fp_exclude_mdt;
3883 if (param->fp_exclude_mdt)
3890 * Check whether the obd is active or not, if it is
3891 * not active, just print the object affected by this
3894 static int print_failed_tgt(struct find_param *param, char *path, int type)
3896 struct obd_statfs stat_buf;
3897 struct obd_uuid uuid_buf;
3900 if (type != LL_STATFS_LOV && type != LL_STATFS_LMV)
3903 memset(&stat_buf, 0, sizeof(struct obd_statfs));
3904 memset(&uuid_buf, 0, sizeof(struct obd_uuid));
3905 ret = llapi_obd_statfs(path, type,
3906 param->fp_obd_index, &stat_buf,
3909 llapi_printf(LLAPI_MSG_NORMAL,
3910 "obd_uuid: %s failed %s ",
3911 param->fp_obd_uuid->uuid,
3918 static int find_check_stripe_size(struct find_param *param)
3920 struct lov_comp_md_v1 *comp_v1 = NULL;
3921 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
3922 int ret, i, count = 1;
3924 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
3925 return param->fp_exclude_stripe_size ? 1 : -1;
3927 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
3928 comp_v1 = (struct lov_comp_md_v1 *)v1;
3929 count = comp_v1->lcm_entry_count;
3930 ret = param->fp_exclude_stripe_size ? 1 : -1;
3933 for (i = 0; i < count; i++) {
3935 v1 = lov_comp_entry(comp_v1, i);
3937 ret = find_value_cmp(v1->lmm_stripe_size, param->fp_stripe_size,
3938 param->fp_stripe_size_sign,
3939 param->fp_exclude_stripe_size,
3940 param->fp_stripe_size_units, 0);
3941 /* If any stripe_size matches */
3949 static __u32 find_get_stripe_count(struct find_param *param)
3951 struct lov_comp_md_v1 *comp_v1 = NULL;
3952 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
3954 __u32 stripe_count = 0;
3956 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
3959 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
3960 comp_v1 = (struct lov_comp_md_v1 *)v1;
3961 count = comp_v1->lcm_entry_count;
3964 for (i = 0; i < count; i++) {
3966 v1 = lov_comp_entry(comp_v1, i);
3967 stripe_count += v1->lmm_stripe_count;
3970 return stripe_count;
3973 #define LOV_PATTERN_INVALID 0xFFFFFFFF
3975 static int find_check_layout(struct find_param *param)
3977 struct lov_comp_md_v1 *comp_v1 = NULL;
3978 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
3980 bool found = false, valid = false;
3982 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
3983 comp_v1 = (struct lov_comp_md_v1 *)v1;
3984 count = comp_v1->lcm_entry_count;
3987 for (i = 0; i < count; i++) {
3989 v1 = lov_comp_entry(comp_v1, i);
3991 /* foreign file have a special magic but no pattern field */
3992 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
3995 if (v1->lmm_pattern == LOV_PATTERN_INVALID)
3999 if (v1->lmm_pattern & param->fp_layout) {
4008 if ((found && !param->fp_exclude_layout) ||
4009 (!found && param->fp_exclude_layout))
4015 /* if no type specified, check/exclude all foreign
4016 * if type specified, check all foreign&type and exclude !foreign + foreign&type
4018 static int find_check_foreign(struct find_param *param)
4020 if (S_ISREG(param->fp_lmd->lmd_st.st_mode)) {
4021 struct lov_foreign_md *lfm;
4023 lfm = (void *)¶m->fp_lmd->lmd_lmm;
4024 if (lfm->lfm_magic != LOV_USER_MAGIC_FOREIGN) {
4025 if (param->fp_foreign_type == LOV_FOREIGN_TYPE_UNKNOWN)
4026 return param->fp_exclude_foreign ? 1 : -1;
4029 if (param->fp_foreign_type == LOV_FOREIGN_TYPE_UNKNOWN ||
4030 lfm->lfm_type == param->fp_foreign_type)
4031 return param->fp_exclude_foreign ? -1 : 1;
4032 return param->fp_exclude_foreign ? 1 : -1;
4038 static int find_check_pool(struct find_param *param)
4040 struct lov_comp_md_v1 *comp_v1 = NULL;
4041 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4042 struct lov_user_md_v3 *v3 = (void *)v1;
4046 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4047 comp_v1 = (struct lov_comp_md_v1 *)v1;
4048 count = comp_v1->lcm_entry_count;
4049 /* empty requested pool is taken as no pool search */
4050 if (count == 0 && param->fp_poolname[0] == '\0')
4054 for (i = 0; i < count; i++) {
4055 if (comp_v1 != NULL)
4056 v1 = lov_comp_entry(comp_v1, i);
4058 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4061 if (((v1->lmm_magic == LOV_USER_MAGIC_V1) &&
4062 (param->fp_poolname[0] == '\0')) ||
4063 ((v1->lmm_magic == LOV_USER_MAGIC_V3) &&
4064 (strncmp(v3->lmm_pool_name,
4065 param->fp_poolname, LOV_MAXPOOLNAME) == 0)) ||
4066 ((v1->lmm_magic == LOV_USER_MAGIC_V3) &&
4067 (strcmp(param->fp_poolname, "*") == 0))) {
4073 if ((found && !param->fp_exclude_pool) ||
4074 (!found && param->fp_exclude_pool))
4080 static int find_check_comp_options(struct find_param *param)
4082 lstat_t *st = ¶m->fp_lmd->lmd_st;
4083 struct lov_comp_md_v1 *comp_v1, *forged_v1 = NULL;
4084 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4085 struct lov_comp_md_entry_v1 *entry;
4088 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4091 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4092 comp_v1 = (struct lov_comp_md_v1 *)v1;
4094 forged_v1 = malloc(sizeof(*forged_v1) + sizeof(*entry));
4095 if (forged_v1 == NULL)
4097 comp_v1 = forged_v1;
4098 comp_v1->lcm_entry_count = 1;
4099 entry = &comp_v1->lcm_entries[0];
4100 entry->lcme_flags = S_ISDIR(st->st_mode) ? 0 : LCME_FL_INIT;
4101 entry->lcme_extent.e_start = 0;
4102 entry->lcme_extent.e_end = LUSTRE_EOF;
4105 /* invalid case, don't match for any kind of search. */
4106 if (comp_v1->lcm_entry_count == 0) {
4111 if (param->fp_check_comp_count) {
4112 ret = find_value_cmp(forged_v1 ? 0 : comp_v1->lcm_entry_count,
4113 param->fp_comp_count,
4114 param->fp_comp_count_sign,
4115 param->fp_exclude_comp_count, 1, 0);
4121 for (i = 0; i < comp_v1->lcm_entry_count; i++) {
4122 entry = &comp_v1->lcm_entries[i];
4124 if (param->fp_check_comp_flags) {
4126 if (((param->fp_comp_flags & entry->lcme_flags) !=
4127 param->fp_comp_flags) ||
4128 (param->fp_comp_neg_flags & entry->lcme_flags)) {
4134 if (param->fp_check_comp_start) {
4135 ret = find_value_cmp(entry->lcme_extent.e_start,
4136 param->fp_comp_start,
4137 param->fp_comp_start_sign,
4138 param->fp_exclude_comp_start,
4139 param->fp_comp_start_units, 0);
4144 if (param->fp_check_comp_end) {
4145 ret = find_comp_end_cmp(entry->lcme_extent.e_end,
4151 /* the component matches all criteria */
4160 static int find_check_mirror_options(struct find_param *param)
4162 struct lov_comp_md_v1 *comp_v1;
4163 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4166 if (v1->lmm_magic != LOV_USER_MAGIC_COMP_V1)
4169 comp_v1 = (struct lov_comp_md_v1 *)v1;
4171 if (param->fp_check_mirror_count) {
4172 ret = find_value_cmp(comp_v1->lcm_mirror_count + 1,
4173 param->fp_mirror_count,
4174 param->fp_mirror_count_sign,
4175 param->fp_exclude_mirror_count, 1, 0);
4180 if (param->fp_check_mirror_state) {
4182 __u16 file_state = comp_v1->lcm_flags & LCM_FL_FLR_MASK;
4184 if ((param->fp_mirror_state != 0 &&
4185 file_state != param->fp_mirror_state) ||
4186 file_state == param->fp_mirror_neg_state)
4193 static bool find_check_lmm_info(struct find_param *param)
4195 return param->fp_check_pool || param->fp_check_stripe_count ||
4196 param->fp_check_stripe_size || param->fp_check_layout ||
4197 param->fp_check_comp_count || param->fp_check_comp_end ||
4198 param->fp_check_comp_start || param->fp_check_comp_flags ||
4199 param->fp_check_mirror_count || param->fp_check_foreign ||
4200 param->fp_check_mirror_state ||
4201 param->fp_check_projid;
4205 * Get file/directory project id.
4206 * by the open fd resides on.
4207 * Return 0 and project id on success, or -ve errno.
4209 static int fget_projid(int fd, int *projid)
4214 rc = ioctl(fd, LL_IOC_FSGETXATTR, &fsx);
4218 *projid = fsx.fsx_projid;
4222 static int cb_find_init(char *path, DIR *parent, DIR **dirp,
4223 void *data, struct dirent64 *de)
4225 struct find_param *param = (struct find_param *)data;
4226 DIR *dir = dirp == NULL ? NULL : *dirp;
4227 int decision = 1; /* 1 is accepted; -1 is rejected. */
4228 lstat_t *st = ¶m->fp_lmd->lmd_st;
4230 int checked_type = 0;
4232 __u32 stripe_count = 0;
4235 if (parent == NULL && dir == NULL)
4238 /* If a regular expression is presented, make the initial decision */
4239 if (param->fp_pattern != NULL) {
4240 char *fname = strrchr(path, '/');
4241 fname = (fname == NULL ? path : fname + 1);
4242 ret = fnmatch(param->fp_pattern, fname, 0);
4243 if ((ret == FNM_NOMATCH && !param->fp_exclude_pattern) ||
4244 (ret == 0 && param->fp_exclude_pattern))
4248 /* See if we can check the file type from the dirent. */
4249 if (param->fp_type != 0 && de != NULL && de->d_type != DT_UNKNOWN) {
4252 if (DTTOIF(de->d_type) == param->fp_type) {
4253 if (param->fp_exclude_type)
4256 if (!param->fp_exclude_type)
4263 /* Request MDS for the stat info if some of these parameters need
4264 * to be compared. */
4265 if (param->fp_obd_uuid || param->fp_mdt_uuid ||
4266 param->fp_check_uid || param->fp_check_gid ||
4267 param->fp_atime || param->fp_mtime || param->fp_ctime ||
4268 param->fp_check_size || param->fp_check_blocks ||
4269 find_check_lmm_info(param) ||
4270 param->fp_check_mdt_count || param->fp_check_hash_type)
4273 if (param->fp_type != 0 && checked_type == 0)
4276 if (decision == 0) {
4277 if (param->fp_check_mdt_count || param->fp_check_hash_type) {
4278 param->fp_get_lmv = 1;
4279 ret = cb_get_dirstripe(path, dir, param);
4284 param->fp_lmd->lmd_lmm.lmm_magic = 0;
4285 ret = get_lmd_info(path, parent, dir, param->fp_lmd,
4286 param->fp_lum_size, GET_LMD_INFO);
4287 if (ret == 0 && param->fp_lmd->lmd_lmm.lmm_magic == 0 &&
4288 find_check_lmm_info(param)) {
4289 struct lov_user_md *lmm = ¶m->fp_lmd->lmd_lmm;
4291 /* We need to "fake" the "use the default" values
4292 * since the lmm struct is zeroed out at this point. */
4293 lmm->lmm_magic = LOV_USER_MAGIC_V1;
4294 lmm->lmm_pattern = LOV_PATTERN_DEFAULT;
4296 ostid_set_seq(&lmm->lmm_oi,
4297 FID_SEQ_LOV_DEFAULT);
4298 lmm->lmm_stripe_size = 0;
4299 lmm->lmm_stripe_count = 0;
4300 lmm->lmm_stripe_offset = -1;
4302 if (ret == 0 && param->fp_mdt_uuid != NULL) {
4304 ret = llapi_file_fget_mdtidx(dirfd(dir),
4305 ¶m->fp_file_mdt_index);
4306 } else if (S_ISREG(st->st_mode)) {
4307 /* FIXME: we could get the MDT index from the
4308 * file's FID in lmd->lmd_lmm.lmm_oi without
4309 * opening the file, once we are sure that
4310 * LFSCK2 (2.6) has fixed up pre-2.0 LOV EAs.
4311 * That would still be an ioctl() to map the
4312 * FID to the MDT, but not an open RPC. */
4313 fd = open(path, O_RDONLY);
4315 ret = llapi_file_fget_mdtidx(fd,
4316 ¶m->fp_file_mdt_index);
4321 /* For a special file, we assume it resides on
4322 * the same MDT as the parent directory. */
4323 ret = llapi_file_fget_mdtidx(dirfd(parent),
4324 ¶m->fp_file_mdt_index);
4335 stripe_count = find_get_stripe_count(param);
4339 if (param->fp_type && !checked_type) {
4340 if ((st->st_mode & S_IFMT) == param->fp_type) {
4341 if (param->fp_exclude_type)
4344 if (!param->fp_exclude_type)
4350 if (param->fp_obd_uuid || param->fp_mdt_uuid) {
4351 if (lustre_fs && param->fp_got_uuids &&
4352 param->fp_dev != st->st_dev) {
4353 /* A lustre/lustre mount point is crossed. */
4354 param->fp_got_uuids = 0;
4355 param->fp_obds_printed = 0;
4356 param->fp_mdt_index = OBD_NOT_FOUND;
4357 param->fp_obd_index = OBD_NOT_FOUND;
4360 if (lustre_fs && !param->fp_got_uuids) {
4361 ret = setup_target_indexes(dir ? dir : parent, path,
4366 param->fp_dev = st->st_dev;
4367 } else if (!lustre_fs && param->fp_got_uuids) {
4368 /* A lustre/non-lustre mount point is crossed. */
4369 param->fp_got_uuids = 0;
4370 param->fp_mdt_index = OBD_NOT_FOUND;
4371 param->fp_obd_index = OBD_NOT_FOUND;
4375 if (param->fp_check_foreign) {
4376 decision = find_check_foreign(param);
4381 if (param->fp_check_stripe_size) {
4382 decision = find_check_stripe_size(param);
4387 if (param->fp_check_stripe_count) {
4388 decision = find_value_cmp(stripe_count, param->fp_stripe_count,
4389 param->fp_stripe_count_sign,
4390 param->fp_exclude_stripe_count, 1, 0);
4395 if (param->fp_check_mdt_count) {
4396 decision = find_value_cmp(
4397 param->fp_lmv_md->lum_stripe_count,
4398 param->fp_mdt_count,
4399 param->fp_mdt_count_sign,
4400 param->fp_exclude_mdt_count, 1, 0);
4405 if (param->fp_check_layout) {
4406 decision = find_check_layout(param);
4411 if (param->fp_check_hash_type) {
4414 found = param->fp_lmv_md->lum_hash_type & param->fp_hash_type;
4415 if ((found && param->fp_exclude_hash_type) ||
4416 (!found && !param->fp_exclude_hash_type)) {
4422 /* If an OBD UUID is specified but none matches, skip this file. */
4423 if ((param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND) ||
4424 (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND))
4427 /* If an OST or MDT UUID is given, and some OST matches,
4429 if (param->fp_obd_index != OBD_NOT_FOUND ||
4430 param->fp_mdt_index != OBD_NOT_FOUND) {
4431 if (param->fp_obd_uuid) {
4432 if (check_obd_match(param)) {
4433 /* If no mdtuuid is given, we are done.
4434 * Otherwise, fall through to the mdtuuid
4436 if (!param->fp_mdt_uuid)
4443 if (param->fp_mdt_uuid) {
4444 if (check_mdt_match(param))
4451 if (param->fp_check_uid) {
4452 if (st->st_uid == param->fp_uid) {
4453 if (param->fp_exclude_uid)
4456 if (!param->fp_exclude_uid)
4461 if (param->fp_check_gid) {
4462 if (st->st_gid == param->fp_gid) {
4463 if (param->fp_exclude_gid)
4466 if (!param->fp_exclude_gid)
4471 if (param->fp_check_projid) {
4475 fd = open(path, O_RDONLY);
4478 ret = fget_projid(fd, &projid);
4483 if (projid == param->fp_projid) {
4484 if (param->fp_exclude_projid)
4487 if (!param->fp_exclude_projid)
4492 if (param->fp_check_pool) {
4493 decision = find_check_pool(param);
4498 if (param->fp_check_comp_count || param->fp_check_comp_flags ||
4499 param->fp_check_comp_start || param->fp_check_comp_end) {
4500 decision = find_check_comp_options(param);
4505 if (param->fp_check_mirror_count || param->fp_check_mirror_state) {
4506 decision = find_check_mirror_options(param);
4511 /* Check the time on mds. */
4513 if (param->fp_atime || param->fp_mtime || param->fp_ctime) {
4516 for_mds = lustre_fs ?
4517 (S_ISREG(st->st_mode) && stripe_count) : 0;
4518 decision = find_time_check(st, param, for_mds);
4523 /* If file still fits the request, ask ost for updated info.
4524 The regular stat is almost of the same speed as some new
4525 'glimpse-size-ioctl'. */
4527 if ((param->fp_check_size || param->fp_check_blocks) &&
4528 ((S_ISREG(st->st_mode) && stripe_count) || S_ISDIR(st->st_mode)))
4532 /* For regular files with the stripe the decision may have not
4533 * been taken yet if *time or size is to be checked. */
4534 if (param->fp_obd_index != OBD_NOT_FOUND)
4535 print_failed_tgt(param, path, LL_STATFS_LOV);
4537 if (param->fp_mdt_index != OBD_NOT_FOUND)
4538 print_failed_tgt(param, path, LL_STATFS_LMV);
4541 ret = fstat_f(dirfd(dir), st);
4542 else if (de != NULL)
4543 ret = fstatat_f(dirfd(parent), de->d_name, st,
4544 AT_SYMLINK_NOFOLLOW);
4546 ret = lstat_f(path, st);
4549 if (errno == ENOENT) {
4550 llapi_error(LLAPI_MSG_ERROR, -ENOENT,
4551 "warning: %s: %s does not exist",
4556 llapi_error(LLAPI_MSG_ERROR, ret,
4557 "%s: IOC_LOV_GETINFO on %s failed",
4563 /* Check the time on osc. */
4564 decision = find_time_check(st, param, 0);
4569 if (param->fp_check_size) {
4570 decision = find_value_cmp(st->st_size, param->fp_size,
4571 param->fp_size_sign,
4572 param->fp_exclude_size,
4573 param->fp_size_units, 0);
4578 if (param->fp_check_blocks) { /* convert st_blocks to bytes */
4579 decision = find_value_cmp(st->st_blocks * 512, param->fp_blocks,
4580 param->fp_blocks_sign,
4581 param->fp_exclude_blocks,
4582 param->fp_blocks_units, 0);
4587 llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
4588 if (param->fp_zero_end)
4589 llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
4591 llapi_printf(LLAPI_MSG_NORMAL, "\n");
4595 /* Do not get down anymore? */
4596 if (param->fp_depth == param->fp_max_depth) {
4607 static int cb_migrate_mdt_init(char *path, DIR *parent, DIR **dirp,
4608 void *param_data, struct dirent64 *de)
4610 struct find_param *param = (struct find_param *)param_data;
4611 struct lmv_user_md *lmu = param->fp_lmv_md;
4612 DIR *tmp_parent = parent;
4613 char raw[MAX_IOC_BUFLEN] = {'\0'};
4615 struct obd_ioctl_data data = { 0 };
4622 if (parent == NULL && dirp == NULL)
4631 if (parent == NULL) {
4632 tmp_parent = opendir_parent(path);
4633 if (tmp_parent == NULL) {
4636 llapi_error(LLAPI_MSG_ERROR, ret,
4637 "can not open %s", path);
4642 fd = dirfd(tmp_parent);
4644 path_copy = strdup(path);
4645 filename = basename(path_copy);
4647 data.ioc_inlbuf1 = (char *)filename;
4648 data.ioc_inllen1 = strlen(filename) + 1;
4649 data.ioc_inlbuf2 = (char *)lmu;
4650 data.ioc_inllen2 = lmv_user_md_size(lmu->lum_stripe_count,
4652 ret = llapi_ioctl_pack(&data, &rawbuf, sizeof(raw));
4654 llapi_error(LLAPI_MSG_ERROR, ret,
4655 "llapi_obd_statfs: error packing ioctl data");
4660 ret = ioctl(fd, LL_IOC_MIGRATE, rawbuf);
4662 if (errno == EBUSY && !retry) {
4663 /* because migrate may not be able to lock all involved
4664 * objects in order, for some of them it try lock, while
4665 * there may be conflicting COS locks and cause migrate
4666 * fail with EBUSY, hope a sync() could cause
4667 * transaction commit and release these COS locks. */
4671 } else if (errno == EALREADY) {
4672 if (param->fp_verbose & VERBOSE_DETAIL)
4673 llapi_printf(LLAPI_MSG_NORMAL,
4674 "%s was migrated to MDT%d already\n",
4675 path, lmu->lum_stripe_offset);
4679 llapi_error(LLAPI_MSG_ERROR, ret,
4680 "%s migrate failed: %s (%d)\n",
4681 path, strerror(-ret), ret);
4684 } else if (param->fp_verbose & VERBOSE_DETAIL) {
4685 llapi_printf(LLAPI_MSG_NORMAL,
4686 "migrate %s to MDT%d stripe count %d\n",
4687 path, lmu->lum_stripe_offset,
4688 lmu->lum_stripe_count);
4693 /* If the directory is being migration, we need
4694 * close the directory after migration,
4695 * so the old directory cache will be cleanup
4696 * on the client side, and re-open to get the
4697 * new directory handle */
4698 *dirp = opendir(path);
4699 if (*dirp == NULL) {
4701 llapi_error(LLAPI_MSG_ERROR, ret,
4702 "%s: Failed to open '%s'", __func__, path);
4707 closedir(tmp_parent);
4714 /* dir migration finished, shrink its stripes */
4715 static int cb_migrate_mdt_fini(char *path, DIR *parent, DIR **dirp, void *data,
4716 struct dirent64 *de)
4718 struct find_param *param = data;
4719 struct lmv_user_md *lmu = param->fp_lmv_md;
4720 int lmulen = lmv_user_md_size(lmu->lum_stripe_count, lmu->lum_magic);
4723 if (de && de->d_type != DT_DIR)
4728 * close it before setxattr because the latter may destroy the
4729 * original object, and cause close fail.
4731 ret = closedir(*dirp);
4737 ret = setxattr(path, XATTR_NAME_LMV, lmu, lmulen, 0);
4738 if (ret == -EALREADY)
4741 cb_common_fini(path, parent, dirp, data, de);
4745 int llapi_migrate_mdt(char *path, struct find_param *param)
4747 return param_callback(path, cb_migrate_mdt_init, cb_migrate_mdt_fini,
4751 int llapi_mv(char *path, struct find_param *param)
4753 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)
4754 static bool printed;
4757 llapi_error(LLAPI_MSG_ERROR, -ESTALE,
4758 "llapi_mv() is deprecated, use llapi_migrate_mdt()\n");
4762 return llapi_migrate_mdt(path, param);
4765 int llapi_find(char *path, struct find_param *param)
4767 return param_callback(path, cb_find_init, cb_common_fini, param);
4771 * Get MDT number that the file/directory inode referenced
4772 * by the open fd resides on.
4773 * Return 0 and mdtidx on success, or -ve errno.
4775 int llapi_file_fget_mdtidx(int fd, int *mdtidx)
4777 if (ioctl(fd, LL_IOC_GET_MDTIDX, mdtidx) < 0)
4782 static int cb_get_mdt_index(char *path, DIR *parent, DIR **dirp, void *data,
4783 struct dirent64 *de)
4785 struct find_param *param = (struct find_param *)data;
4786 DIR *d = dirp == NULL ? NULL : *dirp;
4790 if (parent == NULL && d == NULL)
4794 ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
4795 } else /* if (parent) */ {
4798 fd = open(path, O_RDONLY | O_NOCTTY);
4800 ret = llapi_file_fget_mdtidx(fd, &mdtidx);
4808 if (ret == -ENODATA) {
4809 if (!param->fp_obd_uuid)
4810 llapi_printf(LLAPI_MSG_NORMAL,
4811 "'%s' has no stripe info\n", path);
4813 } else if (ret == -ENOENT) {
4814 llapi_error(LLAPI_MSG_WARN, ret,
4815 "warning: %s: '%s' does not exist",
4818 } else if (ret == -ENOTTY) {
4819 llapi_error(LLAPI_MSG_ERROR, ret,
4820 "%s: '%s' not on a Lustre fs",
4823 llapi_error(LLAPI_MSG_ERROR, ret,
4824 "error: %s: '%s' failed get_mdtidx",
4830 if (param->fp_quiet || !(param->fp_verbose & VERBOSE_DETAIL))
4831 llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
4833 llapi_printf(LLAPI_MSG_NORMAL, "%s\nmdt_index:\t%d\n",
4837 /* Do not go down anymore? */
4838 if (param->fp_depth == param->fp_max_depth)
4846 static int cb_getstripe(char *path, DIR *parent, DIR **dirp, void *data,
4847 struct dirent64 *de)
4849 struct find_param *param = (struct find_param *)data;
4850 DIR *d = dirp == NULL ? NULL : *dirp;
4853 if (parent == NULL && d == NULL)
4856 if (param->fp_obd_uuid) {
4857 param->fp_quiet = 1;
4858 ret = setup_obd_uuid(d ? dirfd(d) : dirfd(parent), path, param);
4863 if (d && (param->fp_get_lmv || param->fp_get_default_lmv))
4864 ret = cb_get_dirstripe(path, d, param);
4866 (parent && !param->fp_get_lmv && !param->fp_get_default_lmv))
4867 ret = get_lmd_info(path, parent, d, ¶m->fp_lmd->lmd_lmm,
4868 param->fp_lum_size, GET_LMD_STRIPE);
4873 if (errno == ENODATA && d != NULL) {
4874 /* We need to "fake" the "use the default" values
4875 * since the lmm struct is zeroed out at this point.
4876 * The magic needs to be set in order to satisfy
4877 * a check later on in the code path.
4878 * The object_seq needs to be set for the "(Default)"
4879 * prefix to be displayed. */
4880 if (param->fp_get_default_lmv) {
4881 struct lmv_user_md *lum = param->fp_lmv_md;
4883 lum->lum_magic = LMV_USER_MAGIC;
4884 lum->lum_stripe_count = 0;
4885 lum->lum_stripe_offset = -1;
4887 } else if (param->fp_get_lmv) {
4888 struct lmv_user_md *lum = param->fp_lmv_md;
4891 ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
4894 lum->lum_magic = LMV_MAGIC_V1;
4895 lum->lum_stripe_count = 0;
4896 lum->lum_stripe_offset = mdtidx;
4899 struct lov_user_md *lmm =
4900 ¶m->fp_lmd->lmd_lmm;
4902 lmm->lmm_magic = LOV_USER_MAGIC_V1;
4904 ostid_set_seq(&lmm->lmm_oi,
4905 FID_SEQ_LOV_DEFAULT);
4906 lmm->lmm_stripe_count = 0;
4907 lmm->lmm_stripe_size = 0;
4908 lmm->lmm_stripe_offset = -1;
4911 } else if (errno == ENODATA && parent != NULL) {
4912 if (!param->fp_obd_uuid && !param->fp_mdt_uuid)
4913 llapi_printf(LLAPI_MSG_NORMAL,
4914 "%s has no stripe info\n", path);
4916 } else if (errno == ENOENT) {
4917 llapi_error(LLAPI_MSG_WARN, -ENOENT,
4918 "warning: %s: %s does not exist",
4921 } else if (errno == ENOTTY) {
4923 llapi_error(LLAPI_MSG_ERROR, ret,
4924 "%s: '%s' not on a Lustre fs?",
4929 llapi_error(LLAPI_MSG_ERROR, ret,
4930 "error: %s: %s failed for %s",
4931 __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
4932 "IOC_MDC_GETFILESTRIPE", path);
4939 if (!(param->fp_verbose & VERBOSE_MDTINDEX))
4940 llapi_lov_dump_user_lmm(param, path, d ? LDF_IS_DIR : 0);
4943 /* Do not get down anymore? */
4944 if (param->fp_depth == param->fp_max_depth)
4952 int llapi_getstripe(char *path, struct find_param *param)
4954 return param_callback(path, (param->fp_verbose & VERBOSE_MDTINDEX) ?
4955 cb_get_mdt_index : cb_getstripe,
4956 cb_common_fini, param);
4959 int llapi_obd_fstatfs(int fd, __u32 type, __u32 index,
4960 struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
4962 char raw[MAX_IOC_BUFLEN] = {'\0'};
4964 struct obd_ioctl_data data = { 0 };
4967 data.ioc_inlbuf1 = (char *)&type;
4968 data.ioc_inllen1 = sizeof(__u32);
4969 data.ioc_inlbuf2 = (char *)&index;
4970 data.ioc_inllen2 = sizeof(__u32);
4971 data.ioc_pbuf1 = (char *)stat_buf;
4972 data.ioc_plen1 = sizeof(struct obd_statfs);
4973 data.ioc_pbuf2 = (char *)uuid_buf;
4974 data.ioc_plen2 = sizeof(struct obd_uuid);
4976 rc = llapi_ioctl_pack(&data, &rawbuf, sizeof(raw));
4978 llapi_error(LLAPI_MSG_ERROR, rc,
4979 "llapi_obd_statfs: error packing ioctl data");
4983 rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
4985 return rc < 0 ? -errno : 0;
4988 int llapi_obd_statfs(char *path, __u32 type, __u32 index,
4989 struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
4994 fd = open(path, O_RDONLY);
4997 llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
4999 /* If we can't even open a file on the filesystem (e.g. with
5000 * -ESHUTDOWN), force caller to exit or it will loop forever. */
5004 rc = llapi_obd_fstatfs(fd, type, index, stat_buf, uuid_buf);
5011 #define MAX_STRING_SIZE 128
5013 int llapi_ping(char *obd_type, char *obd_name)
5015 int flags = O_RDONLY;
5016 char buf[1] = { 0 };
5020 rc = cfs_get_param_paths(&path, "%s/%s/ping",
5021 obd_type, obd_name);
5025 fd = open(path.gl_pathv[0], flags);
5027 if (errno == EACCES && flags == O_RDONLY) {
5032 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s",
5037 if (flags == O_RDONLY)
5038 rc = read(fd, buf, sizeof(buf));
5040 rc = write(fd, buf, sizeof(buf));
5048 cfs_free_param_data(&path);
5052 int llapi_target_iterate(int type_num, char **obd_type,
5053 void *args, llapi_cb_t cb)
5059 for (i = 0; i < type_num; i++) {
5062 rc = cfs_get_param_paths(¶m, "%s/*/uuid", obd_type[i]);
5066 for (j = 0; j < param.gl_pathc; j++) {
5067 char obd_uuid[UUID_MAX + 1];
5071 fp = fopen(param.gl_pathv[j], "r");
5074 llapi_error(LLAPI_MSG_ERROR, rc,
5075 "error: opening '%s'",
5080 if (fgets(obd_uuid, sizeof(obd_uuid), fp) == NULL) {
5082 llapi_error(LLAPI_MSG_ERROR, rc,
5083 "error: reading '%s'",
5088 /* Extract the obd_name from the sysfs path.
5089 * 'topsysfs'/fs/lustre/'obd_type'/'obd_name'.
5091 obd_name = strstr(param.gl_pathv[j], "/fs/lustre/");
5097 /* skip /fs/lustre/'obd_type'/ */
5098 obd_name += strlen(obd_type[i]) + 12;
5099 /* chop off after obd_name */
5100 ptr = strrchr(obd_name, '/');
5104 cb(obd_type[i], obd_name, obd_uuid, args);
5113 cfs_free_param_data(¶m);
5117 static void do_target_check(char *obd_type_name, char *obd_name,
5118 char *obd_uuid, void *args)
5122 rc = llapi_ping(obd_type_name, obd_name);
5123 if (rc == ENOTCONN) {
5124 llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
5126 llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
5128 llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
5132 int llapi_target_check(int type_num, char **obd_type, char *dir)
5134 return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
5137 #undef MAX_STRING_SIZE
5139 /* Is this a lustre fs? */
5140 int llapi_is_lustre_mnttype(const char *type)
5142 return (strcmp(type, "lustre") == 0 || strcmp(type,"lustre_lite") == 0);
5145 /* Is this a lustre client fs? */
5146 int llapi_is_lustre_mnt(struct mntent *mnt)
5148 return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
5149 strstr(mnt->mnt_fsname, ":/") != NULL);
5152 int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
5154 char fsname[PATH_MAX + 1];
5158 rc = llapi_search_fsname(mnt, fsname);
5162 root = open(mnt, O_RDONLY | O_DIRECTORY);
5165 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open '%s'", mnt);
5169 rc = ioctl(root, OBD_IOC_QUOTACTL, qctl);
5177 /* Print mdtname 'name' into 'buf' using 'format'. Add -MDT0000 if needed.
5178 * format must have %s%s, buf must be > 16
5179 * Eg: if name = "lustre-MDT0000", "lustre", or "lustre-MDT0000_UUID"
5180 * then buf = "lustre-MDT0000"
5182 static int get_mdtname(char *name, char *format, char *buf)
5184 char suffix[]="-MDT0000";
5185 int len = strlen(name);
5187 if ((len > 5) && (strncmp(name + len - 5, "_UUID", 5) == 0)) {
5188 name[len - 5] = '\0';
5193 if ((len <= 16) && strncmp(name + len - 8, "-MDT", 4) == 0) {
5196 /* Not enough room to add suffix */
5197 llapi_err_noerrno(LLAPI_MSG_ERROR,
5198 "Invalid MDT name |%s|", name);
5203 return sprintf(buf, format, name, suffix);
5206 /** ioctl on filsystem root, with mdtindex sent as data
5207 * \param mdtname path, fsname, or mdtname (lutre-MDT0004)
5208 * \param mdtidxp pointer to integer within data to be filled in with the
5209 * mdt index (0 if no mdt is specified). NULL won't be filled.
5211 int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
5219 /* Take path, fsname, or MDTname. Assume MDT0000 in the former cases.
5220 Open root and parse mdt index. */
5221 if (mdtname[0] == '/') {
5223 rc = get_root_path(WANT_FD | want_error, NULL, &fd,
5224 (char *)mdtname, -1);
5226 if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
5228 ptr = fsname + strlen(fsname) - 8;
5230 index = strtol(ptr + 4, NULL, 16);
5231 rc = get_root_path(WANT_FD | want_error, fsname, &fd, NULL, -1);
5235 llapi_err_noerrno(LLAPI_MSG_ERROR,
5236 "Can't open %s: %d\n", mdtname, rc);
5243 rc = ioctl(fd, opc, data);
5252 int llapi_fid2path(const char *device, const char *fidstr, char *buf,
5253 int buflen, long long *recno, int *linkno)
5255 const char *fidstr_orig = fidstr;
5257 struct getinfo_fid2path *gf;
5262 while (*fidstr == '[')
5265 sscanf(fidstr, SFID, RFID(&fid));
5266 if (!fid_is_sane(&fid)) {
5267 llapi_err_noerrno(LLAPI_MSG_ERROR,
5268 "bad FID format '%s', should be [seq:oid:ver]"
5269 " (e.g. "DFID")\n", fidstr_orig,
5270 (unsigned long long)FID_SEQ_NORMAL, 2, 0);
5274 gf = malloc(sizeof(*gf) + buflen);
5279 gf->gf_recno = *recno;
5280 gf->gf_linkno = *linkno;
5281 gf->gf_pathlen = buflen;
5283 /* Take path or fsname */
5284 rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
5289 /* strip out instances of // */
5290 for (a = gf->gf_u.gf_path; *a != '\0'; a++) {
5291 if ((*a == '/') && (*(a + 1) == '/'))
5298 if (buf[0] == '\0') { /* ROOT path */
5303 *recno = gf->gf_recno;
5304 *linkno = gf->gf_linkno;
5311 static int fid_from_lma(const char *path, int fd, struct lu_fid *fid)
5314 struct lustre_mdt_attrs *lma;
5318 rc = fgetxattr(fd, XATTR_NAME_LMA, buf, sizeof(buf));
5320 rc = lgetxattr(path, XATTR_NAME_LMA, buf, sizeof(buf));
5323 lma = (struct lustre_mdt_attrs *)buf;
5324 fid_le_to_cpu(fid, &lma->lma_self_fid);
5328 int llapi_get_mdt_index_by_fid(int fd, const struct lu_fid *fid,
5333 rc = ioctl(fd, LL_IOC_FID2MDTIDX, fid);
5342 int llapi_fd2fid(int fd, struct lu_fid *fid)
5346 memset(fid, 0, sizeof(*fid));
5348 rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0;
5349 if (rc == -EINVAL || rc == -ENOTTY)
5350 rc = fid_from_lma(NULL, fd, fid);
5355 int llapi_path2fid(const char *path, struct lu_fid *fid)
5359 memset(fid, 0, sizeof(*fid));
5360 fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
5362 if (errno == ELOOP || errno == ENXIO)
5363 return fid_from_lma(path, -1, fid);
5367 rc = llapi_fd2fid(fd, fid);
5368 if (rc == -EINVAL || rc == -ENOTTY)
5369 rc = fid_from_lma(path, -1, fid);
5375 int llapi_fd2parent(int fd, unsigned int linkno, struct lu_fid *parent_fid,
5376 char *name, size_t name_size)
5378 struct getparent *gp;
5381 gp = malloc(sizeof(*gp) + name_size);
5385 gp->gp_linkno = linkno;
5386 gp->gp_name_size = name_size;
5388 rc = ioctl(fd, LL_IOC_GETPARENT, gp);
5394 *parent_fid = gp->gp_fid;
5396 strncpy(name, gp->gp_name, name_size);
5397 name[name_size - 1] = '\0';
5404 int llapi_path2parent(const char *path, unsigned int linkno,
5405 struct lu_fid *parent_fid, char *name, size_t name_size)
5410 fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
5414 rc = llapi_fd2parent(fd, linkno, parent_fid, name, name_size);
5419 int llapi_get_connect_flags(const char *mnt, __u64 *flags)
5424 root = open(mnt, O_RDONLY | O_DIRECTORY);
5427 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
5431 rc = ioctl(root, LL_IOC_GET_CONNECT_FLAGS, flags);
5434 llapi_error(LLAPI_MSG_ERROR, rc,
5435 "ioctl on %s for getting connect flags failed", mnt);
5442 * Get a 64-bit value representing the version of file data pointed by fd.
5444 * Each write or truncate, flushed on OST, will change this value. You can use
5445 * this value to verify if file data was modified. This only checks the file
5446 * data, not metadata.
5448 * \param flags 0: no flush pages, usually used it the process has already
5450 * LL_DV_RD_FLUSH: OSTs will take LCK_PR to flush dirty pages
5452 * LL_DV_WR_FLUSH: OSTs will take LCK_PW to flush all caching
5453 * pages from clients.
5455 * \retval 0 on success.
5456 * \retval -errno on error.
5458 int llapi_get_data_version(int fd, __u64 *data_version, __u64 flags)
5461 struct ioc_data_version idv;
5463 idv.idv_flags = (__u32)flags;
5465 rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
5469 *data_version = idv.idv_version;
5475 * Flush cached pages from all clients.
5477 * \param fd File descriptor
5481 int llapi_file_flush(int fd)
5485 return llapi_get_data_version(fd, &dv, LL_DV_WR_FLUSH);
5489 * Fetch layout version from OST objects. Layout version on OST objects are
5490 * only set when the file is a mirrored file AND after the file has been
5491 * written at least once.
5493 * It actually fetches the least layout version from the objects.
5495 int llapi_get_ost_layout_version(int fd, __u32 *layout_version)
5498 struct ioc_data_version idv = { 0 };
5500 rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
5504 *layout_version = idv.idv_layout_version;
5510 * Create a file without any name and open it for read/write
5512 * - file is created as if it were a standard file in the given \a directory
5513 * - file does not appear in \a directory and mtime does not change because
5514 * the filename is handled specially by the Lustre MDS.
5515 * - file is destroyed at final close
5517 * \param[in] directory directory from which to inherit layout/MDT idx
5518 * \param[in] mdt_idx MDT index on which the file is created,
5519 * \a idx == -1 means no specific MDT is requested
5520 * \param[in] mode standard open(2) mode
5521 * \param[in] stripe_param stripe parameters. May be NULL.
5523 * \retval a file descriptor on success.
5524 * \retval -errno on error.
5526 int llapi_create_volatile_param(const char *directory, int mdt_idx,
5527 int open_flags, mode_t mode,
5528 const struct llapi_stripe_param *stripe_param)
5530 char file_path[PATH_MAX];
5531 int saved_errno = errno;
5533 unsigned int rnumber;
5539 rc = snprintf(file_path, sizeof(file_path),
5540 "%s/" LUSTRE_VOLATILE_HDR "::%.4X",
5541 directory, rnumber);
5543 rc = snprintf(file_path, sizeof(file_path),
5544 "%s/" LUSTRE_VOLATILE_HDR ":%.4X:%.4X",
5545 directory, mdt_idx, rnumber);
5547 if (rc < 0 || rc >= sizeof(file_path))
5548 return -ENAMETOOLONG;
5551 * Either open O_WRONLY or O_RDWR, creating RDONLY
5552 * is non-sensical here
5554 if ((open_flags & O_ACCMODE) == O_RDONLY)
5555 open_flags = O_RDWR | (open_flags & ~O_ACCMODE);
5557 open_flags |= O_CREAT | O_EXCL | O_NOFOLLOW;
5559 if (stripe_param != NULL) {
5560 fd = llapi_file_open_param(file_path, open_flags,
5561 mode, stripe_param);
5565 fd = open(file_path, open_flags, mode);
5569 } while (fd < 0 && rc == -EEXIST);
5572 llapi_error(LLAPI_MSG_ERROR, rc,
5573 "Cannot create volatile file '%s' in '%s'",
5574 file_path + strlen(directory) + 1 +
5575 LUSTRE_VOLATILE_HDR_LEN,
5581 * Unlink file in case this wasn't a Lustre filesystem and the magic
5582 * volatile filename wasn't handled as intended. The effect is the
5583 * same. If volatile open was supported then we expect unlink() to
5586 (void)unlink(file_path);
5589 * Since we are returning successfully we restore errno (and
5590 * mask out possible EEXIST from open() and ENOENT from unlink().
5592 errno = saved_errno;
5598 * Create a file without any name open it for read/write
5600 * - file is created as if it were a standard file in the given \a directory
5601 * - file does not appear in \a directory and mtime does not change because
5602 * the filename is handled specially by the Lustre MDS.
5603 * - file is removed at final close
5604 * - file modes are rw------- since it doesn't make sense to have a read-only
5605 * or write-only file that cannot be opened again.
5606 * - if user wants another mode it must use fchmod() on the open file, no
5607 * security problems arise because it cannot be opened by another process.
5609 * \param[in] directory directory from which to inherit layout/MDT idx
5610 * \param[in] idx MDT index on which the file is created,
5611 * \a idx == -1 means no specific MDT is requested
5612 * \param[in] open_flags standard open(2) flags
5614 * \retval a file descriptor on success.
5615 * \retval -errno on error.
5617 int llapi_create_volatile_idx(const char *directory, int mdt_idx,
5620 return llapi_create_volatile_param(directory, mdt_idx, open_flags,
5621 S_IRUSR | S_IWUSR, NULL);
5625 * Swap the layouts between 2 file descriptors
5626 * the 2 files must be open for writing
5627 * first fd received the ioctl, second fd is passed as arg
5628 * this is assymetric but avoid use of root path for ioctl
5630 int llapi_fswap_layouts_grouplock(int fd1, int fd2, __u64 dv1, __u64 dv2,
5631 int gid, __u64 flags)
5633 struct lustre_swap_layouts lsl;
5638 if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
5639 rc = fstat(fd1, &st1);
5643 rc = fstat(fd2, &st2);
5648 lsl.sl_flags = flags;
5652 rc = ioctl(fd1, LL_IOC_LOV_SWAP_LAYOUTS, &lsl);
5656 if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
5657 struct timeval tv1[2];
5658 struct timeval tv2[2];
5660 memset(tv1, 0, sizeof(tv1));
5661 memset(tv2, 0, sizeof(tv2));
5663 if (flags & SWAP_LAYOUTS_KEEP_ATIME) {
5664 tv1[0].tv_sec = st1.st_atime;
5665 tv2[0].tv_sec = st2.st_atime;
5667 tv1[0].tv_sec = st2.st_atime;
5668 tv2[0].tv_sec = st1.st_atime;
5671 if (flags & SWAP_LAYOUTS_KEEP_MTIME) {
5672 tv1[1].tv_sec = st1.st_mtime;
5673 tv2[1].tv_sec = st2.st_mtime;
5675 tv1[1].tv_sec = st2.st_mtime;
5676 tv2[1].tv_sec = st1.st_mtime;
5679 rc = futimes(fd1, tv1);
5683 rc = futimes(fd2, tv2);
5691 int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, __u64 flags)
5698 while (grp_id == 0);
5700 rc = llapi_fswap_layouts_grouplock(fd1, fd2, dv1, dv2, grp_id, flags);
5708 * Swap the layouts between 2 files
5709 * the 2 files are open in write
5711 int llapi_swap_layouts(const char *path1, const char *path2,
5712 __u64 dv1, __u64 dv2, __u64 flags)
5716 fd1 = open(path1, O_WRONLY | O_LOV_DELAY_CREATE);
5719 llapi_error(LLAPI_MSG_ERROR, rc,
5720 "error: cannot open '%s' for write", path1);
5724 fd2 = open(path2, O_WRONLY | O_LOV_DELAY_CREATE);
5727 llapi_error(LLAPI_MSG_ERROR, rc,
5728 "error: cannot open '%s' for write", path2);
5732 rc = llapi_fswap_layouts(fd1, fd2, dv1, dv2, flags);
5734 llapi_error(LLAPI_MSG_ERROR, rc,
5735 "error: cannot swap layout between '%s' and '%s'",
5746 * Attempt to open a file with Lustre file identifier \a fid
5747 * and return an open file descriptor.
5749 * \param[in] lustre_dir path within Lustre filesystem containing \a fid
5750 * \param[in] fid Lustre file identifier of file to open
5751 * \param[in] flags open() flags
5753 * \retval non-negative file descriptor on successful open
5754 * \retval -1 if an error occurred
5756 int llapi_open_by_fid(const char *lustre_dir, const struct lu_fid *fid,
5759 char mntdir[PATH_MAX];
5760 char path[PATH_MAX];
5763 rc = llapi_search_mounts(lustre_dir, 0, mntdir, NULL);
5767 snprintf(path, sizeof(path), "%s/.lustre/fid/"DFID, mntdir, PFID(fid));
5768 return open(path, flags);
5774 * \param fd File to lock.
5775 * \param gid Group Identifier.
5777 * \retval 0 on success.
5778 * \retval -errno on failure.
5780 int llapi_group_lock(int fd, int gid)
5784 rc = ioctl(fd, LL_IOC_GROUP_LOCK, gid);
5787 llapi_error(LLAPI_MSG_ERROR, rc, "cannot get group lock");
5795 * \param fd File to unlock.
5796 * \param gid Group Identifier.
5798 * \retval 0 on success.
5799 * \retval -errno on failure.
5801 int llapi_group_unlock(int fd, int gid)
5805 rc = ioctl(fd, LL_IOC_GROUP_UNLOCK, gid);
5808 llapi_error(LLAPI_MSG_ERROR, rc, "cannot put group lock");