4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/utils/liblustreapi.c
34 * Author: Peter J. Braam <braam@clusterfs.com>
35 * Author: Phil Schwan <phil@clusterfs.com>
36 * Author: Robert Read <rread@clusterfs.com>
50 #include <sys/ioctl.h>
57 #include <sys/statfs.h>
58 #include <sys/syscall.h>
60 #include <sys/types.h>
61 #include <sys/xattr.h>
62 #include <sys/sysmacros.h>
65 #include <libgen.h> /* for dirname() */
66 #include <linux/limits.h>
67 #ifdef HAVE_LINUX_UNISTD_H
68 #include <linux/unistd.h>
76 #include <libcfs/util/ioctl.h>
77 #include <libcfs/util/param.h>
78 #include <libcfs/util/string.h>
79 #include <linux/lnet/lnetctl.h>
80 #include <lustre/lustreapi.h>
81 #include <linux/lustre/lustre_ostid.h>
82 #include <linux/lustre/lustre_ioctl.h>
83 #include "lustreapi_internal.h"
86 static int llapi_msg_level = LLAPI_MSG_MAX;
87 const char *liblustreapi_cmd;
89 char *mdt_hash_name[] = { "none",
90 LMV_HASH_NAME_ALL_CHARS,
91 LMV_HASH_NAME_FNV_1A_64,
95 struct lustre_foreign_type lu_foreign_types[] = {
96 {.lft_type = LU_FOREIGN_TYPE_NONE, .lft_name = "none"},
97 {.lft_type = LU_FOREIGN_TYPE_SYMLINK, .lft_name = "symlink"},
98 /* must be the last element */
99 {.lft_type = LU_FOREIGN_TYPE_UNKNOWN, .lft_name = NULL}
100 /* array max dimension must be <= UINT32_MAX */
103 void llapi_msg_set_level(int level)
105 /* ensure level is in the good range */
106 if (level < LLAPI_MSG_OFF)
107 llapi_msg_level = LLAPI_MSG_OFF;
108 else if (level > LLAPI_MSG_MAX)
109 llapi_msg_level = LLAPI_MSG_MAX;
111 llapi_msg_level = level;
114 int llapi_msg_get_level(void)
116 return llapi_msg_level;
119 void llapi_set_command_name(const char *cmd)
121 liblustreapi_cmd = cmd;
124 void llapi_clear_command_name(void)
126 liblustreapi_cmd = NULL;
129 static void error_callback_default(enum llapi_message_level level, int err,
130 const char *fmt, va_list ap)
132 bool has_nl = strchr(fmt, '\n') != NULL;
134 if (liblustreapi_cmd != NULL)
135 fprintf(stderr, "%s %s: ", program_invocation_short_name,
138 fprintf(stderr, "%s: ", program_invocation_short_name);
141 if (level & LLAPI_MSG_NO_ERRNO) {
142 vfprintf(stderr, fmt, ap);
144 fprintf(stderr, "\n");
149 * Remove trailing linefeed so error string can be appended.
150 * @fmt is a const string, so we can't modify it directly.
152 if (has_nl && (newfmt = strdup(fmt)))
153 *strrchr(newfmt, '\n') = '\0';
155 newfmt = (char *)fmt;
157 vfprintf(stderr, newfmt, ap);
160 fprintf(stderr, ": %s (%d)\n", strerror(err), err);
164 static void info_callback_default(enum llapi_message_level level, int err,
165 const char *fmt, va_list ap)
168 if (liblustreapi_cmd != NULL) {
169 fprintf(stdout, "%s %s: ",
170 program_invocation_short_name,
173 fprintf(stdout, "%s: ", program_invocation_short_name);
176 vfprintf(stdout, fmt, ap);
179 static llapi_log_callback_t llapi_error_callback = error_callback_default;
180 static llapi_log_callback_t llapi_info_callback = info_callback_default;
183 /* llapi_error will preserve errno */
184 void llapi_error(enum llapi_message_level level, int err, const char *fmt, ...)
187 int tmp_errno = errno;
189 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
193 llapi_error_callback(level, abs(err), fmt, args);
198 /* llapi_printf will preserve errno */
199 void llapi_printf(enum llapi_message_level level, const char *fmt, ...)
202 int tmp_errno = errno;
204 if ((level & LLAPI_MSG_MASK) > llapi_msg_level)
208 llapi_info_callback(level, 0, fmt, args);
214 * Set a custom error logging function. Passing in NULL will reset the logging
215 * callback to its default value.
217 * This function returns the value of the old callback.
219 llapi_log_callback_t llapi_error_callback_set(llapi_log_callback_t cb)
221 llapi_log_callback_t old = llapi_error_callback;
224 llapi_error_callback = cb;
226 llapi_error_callback = error_callback_default;
232 * Set a custom info logging function. Passing in NULL will reset the logging
233 * callback to its default value.
235 * This function returns the value of the old callback.
237 llapi_log_callback_t llapi_info_callback_set(llapi_log_callback_t cb)
239 llapi_log_callback_t old = llapi_info_callback;
242 llapi_info_callback = cb;
244 llapi_info_callback = info_callback_default;
250 * size_units is to be initialized (or zeroed) by caller.
252 int llapi_parse_size(const char *optarg, unsigned long long *size,
253 unsigned long long *size_units, int bytes_spec)
256 char *argbuf = (char *)optarg;
257 unsigned long long frac = 0, frac_d = 1;
259 if (strncmp(optarg, "-", 1) == 0)
262 if (*size_units == 0)
265 *size = strtoull(argbuf, &end, 0);
266 if (end != NULL && *end == '.') {
270 frac = strtoull(argbuf, &end, 10);
271 /* count decimal places */
272 for (i = 0; i < (end - argbuf); i++)
277 if ((*end == 'b') && *(end + 1) == '\0' &&
278 (*size & (~0ULL << (64 - 9))) == 0 &&
280 *size_units = 1 << 9;
281 } else if ((*end == 'b') &&
282 *(end + 1) == '\0' &&
285 } else if ((*end == 'k' || *end == 'K') &&
286 *(end + 1) == '\0' &&
287 (*size & (~0ULL << (64 - 10))) == 0) {
288 *size_units = 1 << 10;
289 } else if ((*end == 'm' || *end == 'M') &&
290 *(end + 1) == '\0' &&
291 (*size & (~0ULL << (64 - 20))) == 0) {
292 *size_units = 1 << 20;
293 } else if ((*end == 'g' || *end == 'G') &&
294 *(end + 1) == '\0' &&
295 (*size & (~0ULL << (64 - 30))) == 0) {
296 *size_units = 1 << 30;
297 } else if ((*end == 't' || *end == 'T') &&
298 *(end + 1) == '\0' &&
299 (*size & (~0ULL << (64 - 40))) == 0) {
300 *size_units = 1ULL << 40;
301 } else if ((*end == 'p' || *end == 'P') &&
302 *(end + 1) == '\0' &&
303 (*size & (~0ULL << (64 - 50))) == 0) {
304 *size_units = 1ULL << 50;
305 } else if ((*end == 'e' || *end == 'E') &&
306 *(end + 1) == '\0' &&
307 (*size & (~0ULL << (64 - 60))) == 0) {
308 *size_units = 1ULL << 60;
313 *size = *size * *size_units + frac * *size_units / frac_d;
318 int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len)
320 struct obd_ioctl_data *overlay;
323 data->ioc_len = obd_ioctl_packlen(data);
324 data->ioc_version = OBD_IOCTL_VERSION;
326 if (*pbuf != NULL && data->ioc_len > max_len) {
327 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
328 "pbuf = %p, ioc_len = %u, max_len = %d",
329 *pbuf, data->ioc_len, max_len);
334 *pbuf = malloc(data->ioc_len);
339 overlay = (struct obd_ioctl_data *)*pbuf;
340 memcpy(*pbuf, data, sizeof(*data));
342 ptr = overlay->ioc_bulk;
343 if (data->ioc_inlbuf1) {
344 memcpy(ptr, data->ioc_inlbuf1, data->ioc_inllen1);
345 ptr += __ALIGN_KERNEL(data->ioc_inllen1, 8);
348 if (data->ioc_inlbuf2) {
349 memcpy(ptr, data->ioc_inlbuf2, data->ioc_inllen2);
350 ptr += __ALIGN_KERNEL(data->ioc_inllen2, 8);
353 if (data->ioc_inlbuf3) {
354 memcpy(ptr, data->ioc_inlbuf3, data->ioc_inllen3);
355 ptr += __ALIGN_KERNEL(data->ioc_inllen3, 8);
358 if (data->ioc_inlbuf4) {
359 memcpy(ptr, data->ioc_inlbuf4, data->ioc_inllen4);
360 ptr += __ALIGN_KERNEL(data->ioc_inllen4, 8);
366 int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len)
368 struct obd_ioctl_data *overlay;
374 overlay = (struct obd_ioctl_data *)pbuf;
376 /* Preserve the caller's buffer pointers */
377 overlay->ioc_inlbuf1 = data->ioc_inlbuf1;
378 overlay->ioc_inlbuf2 = data->ioc_inlbuf2;
379 overlay->ioc_inlbuf3 = data->ioc_inlbuf3;
380 overlay->ioc_inlbuf4 = data->ioc_inlbuf4;
382 memcpy(data, pbuf, sizeof(*data));
384 ptr = overlay->ioc_bulk;
385 if (data->ioc_inlbuf1) {
386 memcpy(data->ioc_inlbuf1, ptr, data->ioc_inllen1);
387 ptr += __ALIGN_KERNEL(data->ioc_inllen1, 8);
390 if (data->ioc_inlbuf2) {
391 memcpy(data->ioc_inlbuf2, ptr, data->ioc_inllen2);
392 ptr += __ALIGN_KERNEL(data->ioc_inllen2, 8);
395 if (data->ioc_inlbuf3) {
396 memcpy(data->ioc_inlbuf3, ptr, data->ioc_inllen3);
397 ptr += __ALIGN_KERNEL(data->ioc_inllen3, 8);
400 if (data->ioc_inlbuf4) {
401 memcpy(data->ioc_inlbuf4, ptr, data->ioc_inllen4);
402 ptr += __ALIGN_KERNEL(data->ioc_inllen4, 8);
408 /* XXX: llapi_xxx() functions return negative values upon failure */
410 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
411 int stripe_count, int stripe_pattern)
413 static int page_size;
416 if (page_size == 0) {
418 * 64 KB is the largest common page size (on ia64/PPC/ARM),
419 * but check the local page size just in case. The page_size
420 * will not change for the lifetime of this process at least.
422 page_size = LOV_MIN_STRIPE_SIZE;
423 if (getpagesize() > page_size) {
424 page_size = getpagesize();
425 llapi_err_noerrno(LLAPI_MSG_WARN,
426 "warning: page size (%u) larger than expected (%u)",
427 page_size, LOV_MIN_STRIPE_SIZE);
430 if (!llapi_stripe_size_is_aligned(stripe_size)) {
432 llapi_error(LLAPI_MSG_ERROR, rc,
433 "error: bad stripe_size %llu, must be an even multiple of %d bytes",
434 (unsigned long long)stripe_size, page_size);
437 if (!llapi_stripe_index_is_valid(stripe_offset)) {
439 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
443 if (!llapi_stripe_count_is_valid(stripe_count)) {
445 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
449 if (llapi_stripe_size_is_too_big(stripe_size)) {
451 llapi_error(LLAPI_MSG_ERROR, rc,
452 "error: stripe size '%llu' over 4GB limit",
453 (unsigned long long)stripe_size);
462 int llapi_dir_stripe_limit_check(int stripe_offset, int stripe_count,
467 if (!llapi_dir_stripe_index_is_valid(stripe_offset)) {
469 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
473 if (!llapi_dir_stripe_count_is_valid(stripe_count)) {
475 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
480 if (!llapi_dir_hash_type_is_valid(hash_type)) {
482 llapi_error(LLAPI_MSG_ERROR, rc, "error: bad hash type %d",
490 * Trim a trailing newline from a string, if it exists.
492 int llapi_chomp_string(char *buf)
508 * Wrapper to grab parameter settings for lov.*-clilov-*.* values
510 static int get_param_lov(const char *path, const char *param,
511 char *buf, size_t buf_size)
513 struct obd_uuid uuid;
516 rc = llapi_file_get_lov_uuid(path, &uuid);
520 return get_lustre_param_value("lov", uuid.uuid, FILTER_BY_EXACT, param,
525 * Wrapper to grab parameter settings for lmv.*-clilov-*.* values
527 static int get_param_lmv(const char *path, const char *param,
528 char *buf, size_t buf_size)
530 struct obd_uuid uuid;
533 rc = llapi_file_get_lmv_uuid(path, &uuid);
537 return get_lustre_param_value("lmv", uuid.uuid, FILTER_BY_EXACT, param,
541 static int get_mds_md_size(const char *path)
543 int md_size = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
546 * Rather than open the file and do the ioctl to get the
547 * instance name and close the file and search for the param
548 * file and open the param file and read the param file and
549 * parse the value and close the param file, let's just return
550 * a large enough value. It's 2020, RAM is cheap and this is
554 if (md_size < XATTR_SIZE_MAX)
555 md_size = XATTR_SIZE_MAX;
560 int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
562 return get_param_lmv(path, "uuid", buf, bufsize);
566 * Open a Lustre file.
568 * \param name the name of the file to be opened
569 * \param flags access mode, see flags in open(2)
570 * \param mode permission of the file if it is created, see mode in open(2)
571 * \param param stripe pattern of the newly created file
573 * \retval file descriptor of opened file
574 * \retval negative errno on failure
576 int llapi_file_open_param(const char *name, int flags, mode_t mode,
577 const struct llapi_stripe_param *param)
579 char fsname[MAX_OBD_NAME + 1] = { 0 };
580 char *pool_name = param->lsp_pool;
581 struct lov_user_md *lum = NULL;
582 size_t lum_size = sizeof(*lum);
585 /* Make sure we are on a Lustre file system */
586 rc = llapi_search_fsname(name, fsname);
588 llapi_error(LLAPI_MSG_ERROR, rc,
589 "'%s' is not on a Lustre filesystem",
594 /* Check if the stripe pattern is sane. */
595 rc = llapi_stripe_limit_check(param->lsp_stripe_size,
596 param->lsp_stripe_offset,
597 param->lsp_stripe_count,
598 param->lsp_stripe_pattern);
602 /* Make sure we have a good pool */
603 if (pool_name != NULL) {
605 * in case user gives the full pool name <fsname>.<poolname>,
608 char *ptr = strchr(pool_name, '.');
612 if (strcmp(pool_name, fsname) != 0) {
614 llapi_err_noerrno(LLAPI_MSG_ERROR,
615 "Pool '%s' is not on filesystem '%s'",
622 /* Make sure the pool exists and is non-empty */
623 rc = llapi_search_ost(fsname, pool_name, NULL);
625 char *err = rc == 0 ? "has no OSTs" : "does not exist";
627 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
628 fsname, pool_name, err);
632 lum_size = sizeof(struct lov_user_md_v3);
635 /* sanity check of target list */
636 if (param->lsp_is_specific) {
637 char ostname[MAX_OBD_NAME + 64];
641 for (i = 0; i < param->lsp_stripe_count; i++) {
642 snprintf(ostname, sizeof(ostname), "%s-OST%04x_UUID",
643 fsname, param->lsp_osts[i]);
644 rc = llapi_search_ost(fsname, pool_name, ostname);
649 llapi_error(LLAPI_MSG_ERROR, rc,
650 "%s: cannot find OST %s in %s",
657 /* Make sure stripe offset is in OST list. */
658 if (param->lsp_osts[i] == param->lsp_stripe_offset)
662 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
663 "%s: stripe offset '%d' is not in the target list",
664 __func__, param->lsp_stripe_offset);
668 lum_size = lov_user_md_size(param->lsp_stripe_count,
669 LOV_USER_MAGIC_SPECIFIC);
672 lum = calloc(1, lum_size);
677 fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
679 if (errno == EISDIR && !(flags & O_DIRECTORY)) {
680 flags = O_DIRECTORY | O_RDONLY;
687 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
692 /* Initialize IOCTL striping pattern structure */
693 lum->lmm_magic = LOV_USER_MAGIC_V1;
694 lum->lmm_pattern = param->lsp_stripe_pattern;
695 lum->lmm_stripe_size = param->lsp_stripe_size;
696 lum->lmm_stripe_count = param->lsp_stripe_count;
697 lum->lmm_stripe_offset = param->lsp_stripe_offset;
698 if (pool_name != NULL) {
699 struct lov_user_md_v3 *lumv3 = (void *)lum;
701 lumv3->lmm_magic = LOV_USER_MAGIC_V3;
702 strncpy(lumv3->lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
704 if (param->lsp_is_specific) {
705 struct lov_user_md_v3 *lumv3 = (void *)lum;
708 lumv3->lmm_magic = LOV_USER_MAGIC_SPECIFIC;
709 if (pool_name == NULL) {
711 * LOV_USER_MAGIC_SPECIFIC uses v3 format plus specified
712 * OST list, therefore if pool is not specified we have
713 * to pack a null pool name for placeholder.
715 memset(lumv3->lmm_pool_name, 0, LOV_MAXPOOLNAME);
718 for (i = 0; i < param->lsp_stripe_count; i++)
719 lumv3->lmm_objects[i].l_ost_idx = param->lsp_osts[i];
722 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lum) != 0) {
723 char errmsg[512] = "stripe already set";
726 if (errno != EEXIST && errno != EALREADY)
727 strncpy(errmsg, strerror(errno), sizeof(errmsg) - 1);
728 if (rc == -EREMOTEIO)
729 snprintf(errmsg, sizeof(errmsg),
730 "inactive OST among your specified %d OST(s)",
731 param->lsp_stripe_count);
733 llapi_err_noerrno(LLAPI_MSG_ERROR,
734 "setstripe error for '%s': %s", name, errmsg);
745 int llapi_file_open_pool(const char *name, int flags, int mode,
746 unsigned long long stripe_size, int stripe_offset,
747 int stripe_count, int stripe_pattern, char *pool_name)
749 const struct llapi_stripe_param param = {
750 .lsp_stripe_size = stripe_size,
751 .lsp_stripe_count = stripe_count,
752 .lsp_stripe_pattern = stripe_pattern,
753 .lsp_stripe_offset = stripe_offset,
754 .lsp_pool = pool_name
756 return llapi_file_open_param(name, flags, mode, ¶m);
759 int llapi_file_open(const char *name, int flags, int mode,
760 unsigned long long stripe_size, int stripe_offset,
761 int stripe_count, int stripe_pattern)
763 return llapi_file_open_pool(name, flags, mode, stripe_size,
764 stripe_offset, stripe_count,
765 stripe_pattern, NULL);
768 int llapi_file_create_foreign(const char *name, mode_t mode, __u32 type,
769 __u32 flags, char *foreign_lov)
772 struct lov_foreign_md *lfm;
775 if (foreign_lov == NULL) {
777 llapi_error(LLAPI_MSG_ERROR, rc,
778 "foreign LOV EA content must be provided");
782 len = strlen(foreign_lov);
783 if (len > XATTR_SIZE_MAX - offsetof(struct lov_foreign_md, lfm_value) ||
786 llapi_error(LLAPI_MSG_ERROR, rc,
787 "foreign LOV EA size %zu (must be 0 < len < %zu)",
788 len, XATTR_SIZE_MAX -
789 offsetof(struct lov_foreign_md, lfm_value));
793 lfm = malloc(len + offsetof(struct lov_foreign_md, lfm_value));
796 llapi_error(LLAPI_MSG_ERROR, rc,
797 "failed to allocate lov_foreign_md");
801 fd = open(name, O_WRONLY|O_CREAT|O_LOV_DELAY_CREATE, mode);
804 llapi_error(LLAPI_MSG_ERROR, fd, "open '%s' failed", name);
808 lfm->lfm_magic = LOV_USER_MAGIC_FOREIGN;
809 lfm->lfm_length = len;
810 lfm->lfm_type = type;
811 lfm->lfm_flags = flags;
812 memcpy(lfm->lfm_value, foreign_lov, len);
814 if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lfm) != 0) {
815 char *errmsg = "stripe already set";
819 errmsg = "not on a Lustre filesystem";
820 else if (errno == EEXIST || errno == EALREADY)
821 errmsg = "stripe already set";
823 errmsg = strerror(errno);
825 llapi_err_noerrno(LLAPI_MSG_ERROR,
826 "setstripe error for '%s': %s", name, errmsg);
842 int llapi_file_create(const char *name, unsigned long long stripe_size,
843 int stripe_offset, int stripe_count, int stripe_pattern)
847 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
848 stripe_offset, stripe_count, stripe_pattern,
857 int llapi_file_create_pool(const char *name, unsigned long long stripe_size,
858 int stripe_offset, int stripe_count,
859 int stripe_pattern, char *pool_name)
863 fd = llapi_file_open_pool(name, O_CREAT | O_WRONLY, 0644, stripe_size,
864 stripe_offset, stripe_count, stripe_pattern,
873 static int verify_dir_param(const char *name,
874 const struct llapi_stripe_param *param)
876 char fsname[MAX_OBD_NAME + 1] = { 0 };
877 char *pool_name = param->lsp_pool;
880 /* Make sure we are on a Lustre file system */
881 rc = llapi_search_fsname(name, fsname);
883 llapi_error(LLAPI_MSG_ERROR, rc,
884 "'%s' is not on a Lustre filesystem",
889 /* Check if the stripe pattern is sane. */
890 rc = llapi_dir_stripe_limit_check(param->lsp_stripe_offset,
891 param->lsp_stripe_count,
892 param->lsp_stripe_pattern);
896 /* Make sure we have a good pool */
897 if (pool_name != NULL) {
899 * in case user gives the full pool name <fsname>.<poolname>,
902 char *ptr = strchr(pool_name, '.');
906 if (strcmp(pool_name, fsname) != 0) {
908 llapi_err_noerrno(LLAPI_MSG_ERROR,
909 "Pool '%s' is not on filesystem '%s'",
916 /* Make sure the pool exists and is non-empty */
917 rc = llapi_search_tgt(fsname, pool_name, NULL, true);
919 char *err = rc == 0 ? "has no OSTs" : "does not exist";
921 llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
922 fsname, pool_name, err);
927 /* sanity check of target list */
928 if (param->lsp_is_specific) {
929 char mdtname[MAX_OBD_NAME + 64];
933 for (i = 0; i < param->lsp_stripe_count; i++) {
934 snprintf(mdtname, sizeof(mdtname), "%s-MDT%04x_UUID",
935 fsname, param->lsp_tgts[i]);
936 rc = llapi_search_tgt(fsname, pool_name, mdtname, true);
941 llapi_error(LLAPI_MSG_ERROR, rc,
942 "%s: cannot find MDT %s in %s",
949 /* Make sure stripe offset is in MDT list. */
950 if (param->lsp_tgts[i] == param->lsp_stripe_offset)
954 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
955 "%s: stripe offset '%d' is not in the target list",
956 __func__, param->lsp_stripe_offset);
964 static inline void param2lmu(struct lmv_user_md *lmu,
965 const struct llapi_stripe_param *param)
967 lmu->lum_magic = param->lsp_is_specific ? LMV_USER_MAGIC_SPECIFIC :
969 lmu->lum_stripe_count = param->lsp_stripe_count;
970 lmu->lum_stripe_offset = param->lsp_stripe_offset;
971 lmu->lum_hash_type = param->lsp_stripe_pattern;
972 if (param->lsp_pool != NULL)
973 strncpy(lmu->lum_pool_name, param->lsp_pool, LOV_MAXPOOLNAME);
974 if (param->lsp_is_specific) {
977 for (i = 0; i < param->lsp_stripe_count; i++)
978 lmu->lum_objects[i].lum_mds = param->lsp_tgts[i];
982 int llapi_dir_set_default_lmv(const char *name,
983 const struct llapi_stripe_param *param)
985 struct lmv_user_md lmu = { 0 };
989 rc = verify_dir_param(name, param);
993 /* TODO: default lmv doesn't support specific targets yet */
994 if (param->lsp_is_specific)
997 param2lmu(&lmu, param);
999 fd = open(name, O_DIRECTORY | O_RDONLY);
1002 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1006 rc = ioctl(fd, LL_IOC_LMV_SET_DEFAULT_STRIPE, &lmu);
1008 char *errmsg = "stripe already set";
1011 if (errno != EEXIST && errno != EALREADY)
1012 errmsg = strerror(errno);
1014 llapi_err_noerrno(LLAPI_MSG_ERROR,
1015 "default dirstripe error on '%s': %s",
1022 int llapi_dir_set_default_lmv_stripe(const char *name, int stripe_offset,
1023 int stripe_count, int stripe_pattern,
1024 const char *pool_name)
1026 const struct llapi_stripe_param param = {
1027 .lsp_stripe_count = stripe_count,
1028 .lsp_stripe_offset = stripe_offset,
1029 .lsp_stripe_pattern = stripe_pattern,
1030 .lsp_pool = (char *)pool_name
1033 return llapi_dir_set_default_lmv(name, ¶m);
1037 * Create a Lustre directory.
1039 * \param name the name of the directory to be created
1040 * \param mode permission of the file if it is created, see mode in open(2)
1041 * \param param stripe pattern of the newly created directory
1043 * \retval 0 on success
1044 * \retval negative errno on failure
1046 int llapi_dir_create(const char *name, mode_t mode,
1047 const struct llapi_stripe_param *param)
1049 struct lmv_user_md *lmu = NULL;
1051 struct obd_ioctl_data data = { 0 };
1054 char *dirpath = NULL;
1055 char *namepath = NULL;
1060 rc = verify_dir_param(name, param);
1064 lmu_size = lmv_user_md_size(param->lsp_stripe_count,
1065 param->lsp_is_specific ?
1066 LMV_USER_MAGIC_SPECIFIC :
1069 lmu = calloc(1, lmu_size);
1073 dirpath = strdup(name);
1079 namepath = strdup(name);
1086 param2lmu(lmu, param);
1088 filename = basename(namepath);
1089 dir = dirname(dirpath);
1091 data.ioc_inlbuf1 = (char *)filename;
1092 data.ioc_inllen1 = strlen(filename) + 1;
1093 data.ioc_inlbuf2 = (char *)lmu;
1094 data.ioc_inllen2 = lmu_size;
1095 data.ioc_type = mode;
1096 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
1098 llapi_error(LLAPI_MSG_ERROR, rc,
1099 "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
1104 fd = open(dir, O_DIRECTORY | O_RDONLY);
1107 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1111 if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
1112 char *errmsg = "stripe already set";
1115 if (errno != EEXIST && errno != EALREADY)
1116 errmsg = strerror(errno);
1118 llapi_err_noerrno(LLAPI_MSG_ERROR,
1119 "dirstripe error on '%s': %s", name, errmsg);
1130 * Create a foreign directory.
1132 * \param name the name of the directory to be created
1133 * \param mode permission of the file if it is created, see mode in open(2)
1134 * \param type foreign type to be set in LMV EA
1135 * \param flags foreign flags to be set in LMV EA
1136 * \param value foreign pattern to be set in LMV EA
1138 * \retval 0 on success
1139 * \retval negative errno on failure
1141 int llapi_dir_create_foreign(const char *name, mode_t mode, __u32 type,
1142 __u32 flags, const char *value)
1144 struct lmv_foreign_md *lfm = NULL;
1145 size_t lfm_size, len;
1146 struct obd_ioctl_data data = { 0 };
1149 char *dirpath = NULL;
1150 char *namepath = NULL;
1155 len = strlen(value);
1156 if (len > XATTR_SIZE_MAX - offsetof(struct lmv_foreign_md, lfm_value) ||
1159 llapi_error(LLAPI_MSG_ERROR, rc,
1160 "invalid LOV EA length %zu (must be 0 < len < %zu)",
1161 len, XATTR_SIZE_MAX -
1162 offsetof(struct lmv_foreign_md, lfm_value));
1165 lfm_size = len + offsetof(struct lmv_foreign_md, lfm_value);
1166 lfm = calloc(1, lfm_size);
1170 dirpath = strdup(name);
1176 namepath = strdup(name);
1183 lfm->lfm_magic = LMV_MAGIC_FOREIGN;
1184 lfm->lfm_length = len;
1185 lfm->lfm_type = type;
1186 lfm->lfm_flags = flags;
1187 memcpy(lfm->lfm_value, value, len);
1189 filename = basename(namepath);
1190 dir = dirname(dirpath);
1192 data.ioc_inlbuf1 = (char *)filename;
1193 data.ioc_inllen1 = strlen(filename) + 1;
1194 data.ioc_inlbuf2 = (char *)lfm;
1195 data.ioc_inllen2 = lfm_size;
1196 data.ioc_type = mode;
1197 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
1199 llapi_error(LLAPI_MSG_ERROR, rc,
1200 "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
1205 fd = open(dir, O_DIRECTORY | O_RDONLY);
1208 llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
1212 if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
1213 char *errmsg = "stripe already set";
1216 if (errno != EEXIST && errno != EALREADY)
1217 errmsg = strerror(errno);
1219 llapi_err_noerrno(LLAPI_MSG_ERROR,
1220 "dirstripe error on '%s': %s", name, errmsg);
1230 int llapi_dir_create_pool(const char *name, int mode, int stripe_offset,
1231 int stripe_count, int stripe_pattern,
1232 const char *pool_name)
1234 const struct llapi_stripe_param param = {
1235 .lsp_stripe_count = stripe_count,
1236 .lsp_stripe_offset = stripe_offset,
1237 .lsp_stripe_pattern = stripe_pattern,
1238 .lsp_pool = (char *)pool_name
1241 return llapi_dir_create(name, mode, ¶m);
1245 * Find the fsname, the full path, and/or an open fd.
1246 * Either the fsname or path must not be NULL
1248 int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
1251 char buf[PATH_MAX], mntdir[PATH_MAX];
1252 char *ptr, *ptr_end;
1254 int idx = 0, mntlen = 0, fd;
1256 int fsnamelen, mountlen;
1258 /* get the mount point */
1259 fp = setmntent(PROC_MOUNTS, "r");
1262 llapi_error(LLAPI_MSG_ERROR, rc,
1263 "cannot retrieve filesystem mount point");
1267 if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
1270 if (!llapi_is_lustre_mnt(&mnt))
1273 if ((want & WANT_INDEX) && (idx++ != index))
1276 mntlen = strlen(mnt.mnt_dir);
1277 ptr = strchr(mnt.mnt_fsname, '/');
1278 while (ptr && *ptr == '/')
1281 * thanks to the call to llapi_is_lustre_mnt() above,
1282 * we are sure that mnt.mnt_fsname contains ":/",
1283 * so ptr should never be NULL
1288 while (*ptr_end != '/' && *ptr_end != '\0')
1291 /* Check the fsname for a match, if given */
1292 mountlen = ptr_end - ptr;
1293 if (!(want & WANT_FSNAME) && fsname != NULL &&
1294 (fsnamelen = strlen(fsname)) > 0 &&
1295 (fsnamelen != mountlen ||
1296 (strncmp(ptr, fsname, mountlen) != 0)))
1299 /* If the path isn't set return the first one we find */
1300 if (path == NULL || strlen(path) == 0) {
1301 strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
1302 mntdir[sizeof(mntdir) - 1] = '\0';
1303 if ((want & WANT_FSNAME) && fsname != NULL) {
1304 strncpy(fsname, ptr, mountlen);
1305 fsname[mountlen] = '\0';
1309 /* Otherwise find the longest matching path */
1310 } else if ((strlen(path) >= mntlen) &&
1311 (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
1312 /* check the path format */
1313 if (strlen(path) > mntlen && path[mntlen] != '/')
1315 strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
1316 mntdir[sizeof(mntdir) - 1] = '\0';
1317 if ((want & WANT_FSNAME) && fsname != NULL) {
1318 strncpy(fsname, ptr, mountlen);
1319 fsname[mountlen] = '\0';
1329 if ((want & WANT_PATH) && path != NULL) {
1330 strncpy(path, mntdir, mntlen);
1331 path[mntlen] = '\0';
1333 if (want & WANT_FD) {
1334 fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
1337 llapi_error(LLAPI_MSG_ERROR, rc,
1338 "cannot open '%s'", mntdir);
1344 } else if (want & WANT_ERROR)
1345 llapi_err_noerrno(LLAPI_MSG_ERROR,
1346 "'%s' not on a mounted Lustre filesystem",
1347 (want & WANT_PATH) ? fsname : path);
1352 * search lustre mounts
1354 * Calling this function will return to the user the mount point, mntdir, and
1355 * the file system name, fsname, if the user passed a buffer to this routine.
1357 * The user inputs are pathname and index. If the pathname is supplied then
1358 * the value of the index will be ignored. The pathname will return data if
1359 * the pathname is located on a lustre mount. Index is used to pick which
1360 * mount point you want in the case of multiple mounted lustre file systems.
1361 * See function lfs_osts in lfs.c for an example of the index use.
1363 int llapi_search_mounts(const char *pathname, int index, char *mntdir,
1366 int want = WANT_PATH, idx = -1;
1368 if (!pathname || pathname[0] == '\0') {
1372 strcpy(mntdir, pathname);
1376 want |= WANT_FSNAME;
1377 return get_root_path(want, fsname, NULL, mntdir, idx);
1380 /* Given a path, find the corresponding Lustre fsname */
1381 int llapi_search_fsname(const char *pathname, char *fsname)
1386 path = realpath(pathname, NULL);
1388 char tmp[PATH_MAX - 1];
1394 if (pathname[0] != '/') {
1396 * Need an absolute path, but realpath() only works for
1397 * pathnames that actually exist. We go through the
1398 * extra hurdle of dirname(getcwd() + pathname) in
1399 * case the relative pathname contains ".." in it.
1401 char realpath[PATH_MAX - 1];
1403 if (getcwd(realpath, sizeof(realpath) - 2) == NULL) {
1405 llapi_error(LLAPI_MSG_ERROR, rc,
1406 "cannot get current working directory");
1410 rc = snprintf(tmp, sizeof(tmp), "%s/", realpath);
1411 if (rc >= sizeof(tmp)) {
1413 llapi_error(LLAPI_MSG_ERROR, rc,
1414 "invalid parent path '%s'",
1420 rc = snprintf(buf, sizeof(buf), "%s%s", tmp, pathname);
1421 if (rc >= sizeof(buf)) {
1423 llapi_error(LLAPI_MSG_ERROR, rc,
1424 "invalid path '%s'", pathname);
1427 path = realpath(buf, NULL);
1429 ptr = strrchr(buf, '/');
1431 llapi_error(LLAPI_MSG_ERROR |
1432 LLAPI_MSG_NO_ERRNO, 0,
1433 "cannot resolve path '%s'",
1438 path = realpath(buf, NULL);
1441 llapi_error(LLAPI_MSG_ERROR, rc,
1442 "cannot resolve path '%s'",
1448 rc = get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL, path, -1);
1453 int llapi_search_rootpath(char *pathname, const char *fsname)
1456 * pathname can be used as an argument by get_root_path(),
1457 * clear it for safety
1460 return get_root_path(WANT_PATH, (char *)fsname, NULL, pathname, -1);
1464 * Get the list of pool members.
1465 * \param poolname string of format \<fsname\>.\<poolname\>
1466 * \param members caller-allocated array of char*
1467 * \param list_size size of the members array
1468 * \param buffer caller-allocated buffer for storing OST names
1469 * \param buffer_size size of the buffer
1471 * \return number of members retrieved for this pool
1472 * \retval -error failure
1474 int llapi_get_poolmembers(const char *poolname, char **members,
1475 int list_size, char *buffer, int buffer_size)
1477 char fsname[PATH_MAX];
1486 /* name is FSNAME.POOLNAME */
1487 if (strlen(poolname) >= sizeof(fsname))
1490 snprintf(fsname, sizeof(fsname), "%s", poolname);
1491 pool = strchr(fsname, '.');
1498 rc = poolpath(&pathname, fsname, NULL);
1500 llapi_error(LLAPI_MSG_ERROR, rc,
1501 "Lustre filesystem '%s' not found",
1506 llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
1507 rc = snprintf(buf, sizeof(buf), "%s/%s", pathname.gl_pathv[0], pool);
1508 cfs_free_param_data(&pathname);
1509 if (rc >= sizeof(buf))
1511 fd = fopen(buf, "r");
1514 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open %s", buf);
1519 while (fgets(buf, sizeof(buf), fd) != NULL) {
1520 if (nb_entries >= list_size) {
1524 buf[sizeof(buf) - 1] = '\0';
1526 tmp = strchr(buf, '\n');
1529 if (used + strlen(buf) + 1 > buffer_size) {
1534 strcpy(buffer + used, buf);
1535 members[nb_entries] = buffer + used;
1536 used += strlen(buf) + 1;
1546 * Get the list of pools in a filesystem.
1547 * \param name filesystem name or path
1548 * \param poollist caller-allocated array of char*
1549 * \param list_size size of the poollist array
1550 * \param buffer caller-allocated buffer for storing pool names
1551 * \param buffer_size size of the buffer
1553 * \return number of pools retrieved for this filesystem
1554 * \retval -error failure
1556 int llapi_get_poollist(const char *name, char **poollist, int list_size,
1557 char *buffer, int buffer_size)
1563 struct dirent *pool;
1565 unsigned int nb_entries = 0;
1566 unsigned int used = 0;
1569 /* initialize output array */
1570 for (i = 0; i < list_size; i++)
1573 /* is name a pathname ? */
1574 ptr = strchr(name, '/');
1576 char fsname_buf[MAXNAMLEN];
1578 /* We will need fsname for printing later */
1579 rc = llapi_getname(name, fsname_buf, sizeof(fsname_buf));
1583 ptr = strrchr(fsname_buf, '-');
1587 fsname = strdup(fsname_buf);
1591 /* name is FSNAME */
1592 fsname = strdup(name);
1597 rc = poolpath(&pathname, fsname, NULL);
1599 llapi_error(LLAPI_MSG_ERROR, rc,
1600 "Lustre filesystem '%s' not found", name);
1604 dir = opendir(pathname.gl_pathv[0]);
1607 llapi_error(LLAPI_MSG_ERROR, rc,
1608 "Could not open pool list for '%s'",
1615 pool = readdir(dir);
1621 /* ignore . and .. */
1622 if (!strcmp(pool->d_name, ".") || !strcmp(pool->d_name, ".."))
1625 /* check output bounds */
1626 if (nb_entries >= list_size) {
1628 goto free_dir_no_msg;
1631 /* +2 for '.' and final '\0' */
1632 if (used + strlen(pool->d_name) + strlen(fsname) + 2
1635 goto free_dir_no_msg;
1638 sprintf(buffer + used, "%s.%s", fsname, pool->d_name);
1639 poollist[nb_entries] = buffer + used;
1640 used += strlen(pool->d_name) + strlen(fsname) + 2;
1646 llapi_error(LLAPI_MSG_ERROR, rc,
1647 "Error reading pool list for '%s'", name);
1649 llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
1654 cfs_free_param_data(&pathname);
1657 return rc != 0 ? rc : nb_entries;
1660 /* wrapper for lfs.c and obd.c */
1661 int llapi_poollist(const char *name)
1664 * list of pool names (assume that pool count is smaller
1667 char **list, *buffer = NULL, *fsname = (char *)name;
1668 char *poolname = NULL, *tmp = NULL, data[16];
1669 enum param_filter type = FILTER_BY_PATH;
1670 int obdcount, bufsize, rc, nb, i;
1675 if (name[0] != '/') {
1676 fsname = strdup(name);
1680 poolname = strchr(fsname, '.');
1683 type = FILTER_BY_FS_NAME;
1686 rc = get_lustre_param_value("lov", fsname, type, "numobd",
1687 data, sizeof(data));
1690 obdcount = atoi(data);
1693 * Allocate space for each fsname-OST0000_UUID, 1 per OST,
1694 * and also an array to store the pointers for all that
1698 bufsize = sizeof(struct obd_uuid) * obdcount;
1699 buffer = realloc(tmp, bufsize + sizeof(*list) * obdcount);
1700 if (buffer == NULL) {
1704 list = (char **) (buffer + bufsize);
1707 /* name is a path or fsname */
1708 nb = llapi_get_poollist(name, list, obdcount,
1711 /* name is a pool name (<fsname>.<poolname>) */
1712 nb = llapi_get_poolmembers(name, list, obdcount,
1716 if (nb == -EOVERFLOW) {
1719 goto retry_get_pools;
1722 for (i = 0; i < nb; i++)
1723 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
1724 rc = (nb < 0 ? nb : 0);
1728 if (fsname != NULL && type == FILTER_BY_FS_NAME)
1733 typedef int (semantic_func_t)(char *path, int p, int *d,
1734 void *data, struct dirent64 *de);
1736 #define OBD_NOT_FOUND (-1)
1738 static void find_param_fini(struct find_param *param)
1740 if (param->fp_migrate)
1743 if (param->fp_obd_indexes) {
1744 free(param->fp_obd_indexes);
1745 param->fp_obd_indexes = NULL;
1748 if (param->fp_lmd) {
1749 free(param->fp_lmd);
1750 param->fp_lmd = NULL;
1753 if (param->fp_lmv_md) {
1754 free(param->fp_lmv_md);
1755 param->fp_lmv_md = NULL;
1759 static int common_param_init(struct find_param *param, char *path)
1761 int lum_size = get_mds_md_size(path);
1766 /* migrate has fp_lmv_md initialized outside */
1767 if (param->fp_migrate)
1770 if (lum_size < PATH_MAX + 1)
1771 lum_size = PATH_MAX + 1;
1773 param->fp_lum_size = lum_size;
1774 param->fp_lmd = calloc(1, offsetof(typeof(*param->fp_lmd), lmd_lmm) +
1776 if (param->fp_lmd == NULL) {
1777 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1778 "error: allocate %zu bytes for layout failed",
1779 sizeof(lstat_t) + param->fp_lum_size);
1783 param->fp_lmv_stripe_count = 256;
1784 param->fp_lmv_md = calloc(1,
1785 lmv_user_md_size(param->fp_lmv_stripe_count,
1786 LMV_USER_MAGIC_SPECIFIC));
1787 if (param->fp_lmv_md == NULL) {
1788 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1789 "error: allocation of %d bytes for ioctl",
1790 lmv_user_md_size(param->fp_lmv_stripe_count,
1791 LMV_USER_MAGIC_SPECIFIC));
1792 find_param_fini(param);
1796 param->fp_got_uuids = 0;
1797 param->fp_obd_indexes = NULL;
1798 param->fp_obd_index = OBD_NOT_FOUND;
1799 param->fp_mdt_index = OBD_NOT_FOUND;
1803 static int cb_common_fini(char *path, int p, int *dp, void *data,
1804 struct dirent64 *de)
1806 struct find_param *param = data;
1812 /* set errno upon failure */
1813 static int open_parent(const char *path)
1819 path_copy = strdup(path);
1820 if (path_copy == NULL)
1823 parent_path = dirname(path_copy);
1824 parent = open(parent_path, O_RDONLY|O_NDELAY|O_DIRECTORY);
1830 static int cb_get_dirstripe(char *path, int *d, struct find_param *param)
1833 bool did_nofollow = false;
1836 param->fp_lmv_md->lum_stripe_count = param->fp_lmv_stripe_count;
1837 if (param->fp_get_default_lmv)
1838 param->fp_lmv_md->lum_magic = LMV_USER_MAGIC;
1840 param->fp_lmv_md->lum_magic = LMV_MAGIC_V1;
1842 ret = ioctl(*d, LL_IOC_LMV_GETSTRIPE, param->fp_lmv_md);
1844 /* if ENOTTY likely to be a fake symlink, so try again after
1845 * new open() with O_NOFOLLOW, but only once to prevent any
1846 * loop like for the path of a file/dir not on Lustre !!
1848 if (ret < 0 && errno == ENOTTY && !did_nofollow) {
1851 did_nofollow = true;
1852 fd = open(path, O_RDONLY | O_NOFOLLOW);
1854 /* restore original errno */
1859 /* close original fd and set new */
1862 ret2 = ioctl(fd, LL_IOC_LMV_GETSTRIPE, param->fp_lmv_md);
1863 if (ret2 < 0 && errno != E2BIG) {
1864 /* restore original errno */
1868 /* LMV is ok or need to handle E2BIG case now */
1872 if (errno == E2BIG && ret != 0) {
1876 /* if foreign LMV case, fake stripes number */
1877 if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
1878 struct lmv_foreign_md *lfm;
1880 lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
1881 if (lfm->lfm_length < XATTR_SIZE_MAX -
1882 offsetof(typeof(*lfm), lfm_value)) {
1883 uint32_t size = lfm->lfm_length +
1884 offsetof(typeof(*lfm), lfm_value);
1886 stripe_count = lmv_foreign_to_md_stripes(size);
1888 llapi_error(LLAPI_MSG_ERROR, -EINVAL,
1889 "error: invalid %d foreign size returned from ioctl",
1894 stripe_count = param->fp_lmv_md->lum_stripe_count;
1896 if (stripe_count <= param->fp_lmv_stripe_count)
1899 free(param->fp_lmv_md);
1900 param->fp_lmv_stripe_count = stripe_count;
1901 lmv_size = lmv_user_md_size(stripe_count,
1902 LMV_USER_MAGIC_SPECIFIC);
1903 param->fp_lmv_md = malloc(lmv_size);
1904 if (param->fp_lmv_md == NULL) {
1905 llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
1906 "error: allocation of %d bytes for ioctl",
1907 lmv_user_md_size(param->fp_lmv_stripe_count,
1908 LMV_USER_MAGIC_SPECIFIC));
1916 static void convert_lmd_statx(struct lov_user_mds_data *lmd_v2, lstat_t *st,
1919 memset(&lmd_v2->lmd_stx, 0, sizeof(lmd_v2->lmd_stx));
1920 lmd_v2->lmd_stx.stx_blksize = st->st_blksize;
1921 lmd_v2->lmd_stx.stx_nlink = st->st_nlink;
1922 lmd_v2->lmd_stx.stx_uid = st->st_uid;
1923 lmd_v2->lmd_stx.stx_gid = st->st_gid;
1924 lmd_v2->lmd_stx.stx_mode = st->st_mode;
1925 lmd_v2->lmd_stx.stx_ino = st->st_ino;
1926 lmd_v2->lmd_stx.stx_size = st->st_size;
1927 lmd_v2->lmd_stx.stx_blocks = st->st_blocks;
1928 lmd_v2->lmd_stx.stx_atime.tv_sec = st->st_atime;
1929 lmd_v2->lmd_stx.stx_ctime.tv_sec = st->st_ctime;
1930 lmd_v2->lmd_stx.stx_mtime.tv_sec = st->st_mtime;
1931 lmd_v2->lmd_stx.stx_rdev_major = major(st->st_rdev);
1932 lmd_v2->lmd_stx.stx_rdev_minor = minor(st->st_rdev);
1933 lmd_v2->lmd_stx.stx_dev_major = major(st->st_dev);
1934 lmd_v2->lmd_stx.stx_dev_minor = minor(st->st_dev);
1935 lmd_v2->lmd_stx.stx_mask |= STATX_BASIC_STATS;
1937 lmd_v2->lmd_flags = 0;
1939 lmd_v2->lmd_flags |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
1941 lmd_v2->lmd_stx.stx_mask &= ~(STATX_SIZE | STATX_BLOCKS);
1942 if (lmd_v2->lmd_stx.stx_size)
1943 lmd_v2->lmd_flags |= OBD_MD_FLLAZYSIZE;
1944 if (lmd_v2->lmd_stx.stx_blocks)
1945 lmd_v2->lmd_flags |= OBD_MD_FLLAZYBLOCKS;
1947 lmd_v2->lmd_flags |= OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME |
1948 OBD_MD_FLBLKSZ | OBD_MD_FLMODE | OBD_MD_FLTYPE |
1949 OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLNLINK |
1954 static int convert_lmdbuf_v1v2(void *lmdbuf, int lmdlen)
1956 struct lov_user_mds_data_v1 *lmd_v1 = lmdbuf;
1957 struct lov_user_mds_data *lmd_v2 = lmdbuf;
1961 size = lov_comp_md_size((struct lov_comp_md_v1 *)&lmd_v1->lmd_lmm);
1965 if (lmdlen < sizeof(lmd_v1->lmd_st) + size)
1968 st = lmd_v1->lmd_st;
1969 memmove(&lmd_v2->lmd_lmm, &lmd_v1->lmd_lmm,
1970 lmdlen - (&lmd_v2->lmd_lmm - &lmd_v1->lmd_lmm));
1971 convert_lmd_statx(lmd_v2, &st, false);
1972 lmd_v2->lmd_lmmsize = 0;
1973 lmd_v2->lmd_padding = 0;
1978 int get_lmd_info_fd(const char *path, int parent_fd, int dir_fd,
1979 void *lmdbuf, int lmdlen, enum get_lmd_info_type type)
1981 struct lov_user_mds_data *lmd = lmdbuf;
1982 static bool use_old_ioctl;
1986 if (parent_fd < 0 && dir_fd < 0)
1988 if (type != GET_LMD_INFO && type != GET_LMD_STRIPE)
1993 * LL_IOC_MDC_GETINFO operates on the current directory inode
1994 * and returns struct lov_user_mds_data, while
1995 * LL_IOC_LOV_GETSTRIPE returns only struct lov_user_md.
1997 if (type == GET_LMD_INFO)
1998 cmd = use_old_ioctl ? LL_IOC_MDC_GETINFO_V1 :
1999 LL_IOC_MDC_GETINFO_V2;
2001 cmd = LL_IOC_LOV_GETSTRIPE;
2004 ret = ioctl(dir_fd, cmd, lmdbuf);
2005 if (ret < 0 && errno == ENOTTY &&
2006 cmd == LL_IOC_MDC_GETINFO_V2) {
2007 cmd = LL_IOC_MDC_GETINFO_V1;
2008 use_old_ioctl = true;
2012 if (cmd == LL_IOC_MDC_GETINFO_V1 && !ret)
2013 ret = convert_lmdbuf_v1v2(lmdbuf, lmdlen);
2015 if (ret < 0 && errno == ENOTTY && type == GET_LMD_STRIPE) {
2018 /* retry ioctl() after new open() with O_NOFOLLOW
2019 * just in case it could be a fake symlink
2020 * need using a new open() as dir_fd is being closed
2024 dir_fd2 = open(path, O_RDONLY | O_NDELAY | O_NOFOLLOW);
2026 /* return original error */
2029 ret = ioctl(dir_fd2, cmd, lmdbuf);
2030 /* pass new errno or success back to caller */
2036 } else if (parent_fd >= 0) {
2037 const char *fname = strrchr(path, '/');
2040 * IOC_MDC_GETFILEINFO takes as input the filename (relative to
2041 * the parent directory) and returns struct lov_user_mds_data,
2042 * while IOC_MDC_GETFILESTRIPE returns only struct lov_user_md.
2044 * This avoids opening, locking, and closing each file on the
2045 * client if that is not needed. Multiple of these ioctl() can
2046 * be done on the parent dir with a single open for all
2047 * files in that directory, and it also doesn't pollute the
2048 * client dcache with millions of dentries when traversing
2049 * a large filesystem.
2051 fname = (fname == NULL ? path : fname + 1);
2053 ret = snprintf(lmdbuf, lmdlen, "%s", fname);
2056 else if (ret >= lmdlen || ret++ == 0)
2059 if (type == GET_LMD_INFO)
2060 cmd = use_old_ioctl ? IOC_MDC_GETFILEINFO_V1 :
2061 IOC_MDC_GETFILEINFO_V2;
2063 cmd = IOC_MDC_GETFILESTRIPE;
2066 ret = ioctl(parent_fd, cmd, lmdbuf);
2067 if (ret < 0 && errno == ENOTTY &&
2068 cmd == IOC_MDC_GETFILEINFO_V2) {
2069 cmd = IOC_MDC_GETFILEINFO_V1;
2070 use_old_ioctl = true;
2071 goto retry_getfileinfo;
2074 if (cmd == IOC_MDC_GETFILEINFO_V1 && !ret)
2075 ret = convert_lmdbuf_v1v2(lmdbuf, lmdlen);
2079 if (ret && type == GET_LMD_INFO) {
2080 if (errno == ENOTTY) {
2084 * ioctl is not supported, it is not a lustre fs.
2085 * Do the regular lstat(2) instead.
2087 ret = lstat_f(path, &st);
2090 llapi_error(LLAPI_MSG_ERROR, ret,
2091 "error: %s: lstat failed for %s",
2095 convert_lmd_statx(lmd, &st, true);
2097 * It may be wrong to set use_old_ioctl with true as
2098 * the file is not a lustre fs. So reset it with false
2101 use_old_ioctl = false;
2102 } else if (errno == ENOENT) {
2104 llapi_error(LLAPI_MSG_WARN, ret,
2105 "warning: %s does not exist", path);
2106 } else if (errno != EISDIR && errno != ENODATA) {
2108 llapi_error(LLAPI_MSG_ERROR, ret,
2109 "%s ioctl failed for %s.",
2110 dir_fd >= 0 ? "LL_IOC_MDC_GETINFO" :
2111 "IOC_MDC_GETFILEINFO", path);
2118 static int llapi_semantic_traverse(char *path, int size, int parent,
2119 semantic_func_t sem_init,
2120 semantic_func_t sem_fini, void *data,
2121 struct dirent64 *de)
2123 struct find_param *param = (struct find_param *)data;
2124 struct dirent64 *dent;
2125 int len, ret, d, p = -1;
2131 d = open(path, O_RDONLY|O_NDELAY|O_DIRECTORY);
2132 /* if an invalid fake dir symlink, opendir() will return EINVAL
2133 * instead of ENOTDIR. If a valid but dangling faked or real file/dir
2134 * symlink ENOENT will be returned. For a valid/resolved fake or real
2135 * file symlink ENOTDIR will be returned as for a regular file.
2136 * opendir() will be successful for a valid and resolved fake or real
2137 * dir simlink or a regular dir.
2139 if (d == -1 && errno != ENOTDIR && errno != EINVAL && errno != ENOENT) {
2141 llapi_error(LLAPI_MSG_ERROR, ret, "%s: Failed to open '%s'",
2144 } else if (d == -1) {
2145 if (errno == ENOENT || errno == EINVAL) {
2146 int old_errno = errno;
2148 /* try to open with O_NOFOLLOW this will help
2149 * differentiate fake vs real symlinks
2150 * it is ok to not use O_DIRECTORY with O_RDONLY
2151 * and it will prevent the need to deal with ENOTDIR
2152 * error, instead of ELOOP, being returned by recent
2153 * kernels for real symlinks
2155 d = open(path, O_RDONLY|O_NDELAY|O_NOFOLLOW);
2156 /* if a dangling real symlink should return ELOOP, or
2157 * again ENOENT if really non-existing path, or E...??
2158 * So return original error. If success or ENOTDIR, path
2159 * is likely to be a fake dir/file symlink, so continue
2169 if (parent == -1 && d == -1) {
2170 /* Open the parent dir. */
2171 p = open_parent(path);
2177 } else { /* d != -1 */
2180 /* try to reopen dir with O_NOFOLLOW just in case of a foreign
2183 d2 = open(path, O_RDONLY|O_NDELAY|O_NOFOLLOW);
2188 /* continue with d */
2194 ret = sem_init(path, (parent != -1) ? parent : p, &d, data, de);
2204 /* ENOTDIR if fake symlink, do not consider it as an error */
2205 if (errno != ENOTDIR)
2206 llapi_error(LLAPI_MSG_ERROR, errno,
2207 "fdopendir() failed");
2214 while ((dent = readdir64(dir)) != NULL) {
2217 if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
2221 if ((len + dent->d_reclen + 2) > size) {
2222 llapi_err_noerrno(LLAPI_MSG_ERROR,
2223 "error: %s: string buffer too small",
2228 strcat(path, dent->d_name);
2230 if (dent->d_type == DT_UNKNOWN) {
2231 struct lov_user_mds_data *lmd = param->fp_lmd;
2233 rc = get_lmd_info_fd(path, d, -1, param->fp_lmd,
2234 param->fp_lum_size, GET_LMD_INFO);
2236 dent->d_type = IFTODT(lmd->lmd_stx.stx_mode);
2243 switch (dent->d_type) {
2245 llapi_err_noerrno(LLAPI_MSG_ERROR,
2246 "error: %s: '%s' is UNKNOWN type %d",
2247 __func__, dent->d_name, dent->d_type);
2250 rc = llapi_semantic_traverse(path, size, d, sem_init,
2251 sem_fini, data, dent);
2252 if (rc != 0 && ret == 0)
2258 rc = sem_init(path, d, NULL, data, dent);
2259 if (rc < 0 && ret == 0) {
2264 if (sem_fini && rc == 0)
2265 sem_fini(path, d, NULL, data, dent);
2273 sem_fini(path, parent, &d, data, de);
2286 static int param_callback(char *path, semantic_func_t sem_init,
2287 semantic_func_t sem_fini, struct find_param *param)
2289 int ret, len = strlen(path);
2292 if (len > PATH_MAX) {
2294 llapi_error(LLAPI_MSG_ERROR, ret,
2295 "Path name '%s' is too long", path);
2299 buf = (char *)malloc(PATH_MAX + 1);
2303 snprintf(buf, PATH_MAX + 1, "%s", path);
2304 ret = common_param_init(param, buf);
2308 param->fp_depth = 0;
2310 ret = llapi_semantic_traverse(buf, PATH_MAX + 1, -1, sem_init,
2311 sem_fini, param, NULL);
2313 find_param_fini(param);
2315 return ret < 0 ? ret : 0;
2318 int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
2320 int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
2324 llapi_error(LLAPI_MSG_ERROR, rc, "cannot get lov name");
2329 int llapi_file_fget_lmv_uuid(int fd, struct obd_uuid *lov_name)
2331 int rc = ioctl(fd, OBD_IOC_GETMDNAME, lov_name);
2335 llapi_error(LLAPI_MSG_ERROR, rc, "error: can't get lmv name.");
2340 int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
2344 /* do not follow faked symlinks */
2345 fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
2347 /* real symlink should have failed with ELOOP so retry without
2348 * O_NOFOLLOW just in case
2350 fd = open(path, O_RDONLY | O_NONBLOCK);
2353 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open '%s'",
2359 rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
2365 int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lov_uuid)
2369 fd = open(path, O_RDONLY | O_NONBLOCK);
2372 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
2376 rc = llapi_file_fget_lmv_uuid(fd, lov_uuid);
2388 * If uuidp is NULL, return the number of available obd uuids.
2389 * If uuidp is non-NULL, then it will return the uuids of the obds. If
2390 * there are more OSTs than allocated to uuidp, then an error is returned with
2391 * the ost_count set to number of available obd uuids.
2393 static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
2394 int *ost_count, enum tgt_type type)
2396 char buf[PATH_MAX], format[32];
2397 int rc = 0, index = 0;
2398 struct obd_uuid name;
2402 /* Get the lov name */
2403 if (type == LOV_TYPE)
2404 rc = llapi_file_fget_lov_uuid(fd, &name);
2406 rc = llapi_file_fget_lmv_uuid(fd, &name);
2410 /* Now get the ost uuids */
2411 rc = get_lustre_param_path(type == LOV_TYPE ? "lov" : "lmv", name.uuid,
2412 FILTER_BY_EXACT, "target_obd", ¶m);
2416 fp = fopen(param.gl_pathv[0], "r");
2419 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
2424 snprintf(format, sizeof(format),
2425 "%%d: %%%zus", sizeof(uuidp[0].uuid) - 1);
2426 while (fgets(buf, sizeof(buf), fp) != NULL) {
2427 if (uuidp && (index < *ost_count)) {
2428 if (sscanf(buf, format, &index, uuidp[index].uuid) < 2)
2436 if (uuidp && (index > *ost_count))
2441 cfs_free_param_data(¶m);
2445 int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
2447 return llapi_get_target_uuids(fd, uuidp, ost_count, LOV_TYPE);
2450 int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
2455 root = open(mnt, O_RDONLY | O_DIRECTORY);
2458 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
2463 rc = ioctl(root, LL_IOC_GETOBDCOUNT, count);
2472 * Check if user specified value matches a real uuid. Ignore _UUID,
2473 * -osc-4ba41334, other trailing gunk in comparison.
2474 * @param real_uuid ends in "_UUID"
2475 * @param search_uuid may or may not end in "_UUID"
2477 int llapi_uuid_match(char *real_uuid, char *search_uuid)
2479 int cmplen = strlen(real_uuid);
2480 int searchlen = strlen(search_uuid);
2482 if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
2484 if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
2488 * The UUIDs may legitimately be different lengths, if
2489 * the system was upgraded from an older version.
2491 if (cmplen != searchlen)
2494 return (strncmp(search_uuid, real_uuid, cmplen) == 0);
2498 * Here, param->fp_obd_uuid points to a single obduuid, the index of which is
2499 * returned in param->fp_obd_index
2501 static int setup_obd_uuid(int fd, char *dname, struct find_param *param)
2503 struct obd_uuid obd_uuid;
2510 if (param->fp_got_uuids)
2513 /* Get the lov/lmv name */
2514 if (param->fp_get_lmv)
2515 rc = llapi_file_fget_lmv_uuid(fd, &obd_uuid);
2517 rc = llapi_file_fget_lov_uuid(fd, &obd_uuid);
2519 if (rc != -ENOTTY) {
2520 llapi_error(LLAPI_MSG_ERROR, rc,
2521 "error: can't get %s name: %s",
2522 param->fp_get_lmv ? "lmv" : "lov",
2530 param->fp_got_uuids = 1;
2532 /* Now get the ost uuids */
2533 rc = get_lustre_param_path(param->fp_get_lmv ? "lmv" : "lov",
2534 obd_uuid.uuid, FILTER_BY_EXACT,
2535 "target_obd", ¶m_data);
2539 fp = fopen(param_data.gl_pathv[0], "r");
2542 llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
2543 param_data.gl_pathv[0]);
2547 if (!param->fp_obd_uuid && !param->fp_quiet && !param->fp_obds_printed)
2548 llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
2549 param->fp_get_lmv ? "MDTS" : "OBDS");
2551 snprintf(format, sizeof(format),
2552 "%%d: %%%zus", sizeof(obd_uuid.uuid) - 1);
2553 while (fgets(buf, sizeof(buf), fp) != NULL) {
2556 if (sscanf(buf, format, &index, obd_uuid.uuid) < 2)
2559 if (param->fp_obd_uuid) {
2560 if (llapi_uuid_match(obd_uuid.uuid,
2561 param->fp_obd_uuid->uuid)) {
2562 param->fp_obd_index = index;
2565 } else if (!param->fp_quiet && !param->fp_obds_printed) {
2566 /* Print everything */
2567 llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
2570 param->fp_obds_printed = 1;
2574 if (param->fp_obd_uuid && (param->fp_obd_index == OBD_NOT_FOUND)) {
2575 llapi_err_noerrno(LLAPI_MSG_ERROR,
2576 "error: %s: unknown obduuid: %s",
2577 __func__, param->fp_obd_uuid->uuid);
2581 cfs_free_param_data(¶m_data);
2586 * In this case, param->fp_obd_uuid will be an array of obduuids and
2587 * obd index for all these obduuids will be returned in
2588 * param->fp_obd_indexes
2590 static int setup_indexes(int d, char *path, struct obd_uuid *obduuids,
2591 int num_obds, int **obdindexes, int *obdindex,
2594 int ret, obdcount, obd_valid = 0, obdnum;
2596 struct obd_uuid *uuids = NULL;
2600 if (type == LOV_TYPE)
2601 ret = get_param_lov(path, "numobd", buf, sizeof(buf));
2603 ret = get_param_lmv(path, "numobd", buf, sizeof(buf));
2607 obdcount = atoi(buf);
2608 uuids = malloc(obdcount * sizeof(struct obd_uuid));
2613 ret = llapi_get_target_uuids(d, uuids, &obdcount, type);
2615 if (ret == -EOVERFLOW) {
2616 struct obd_uuid *uuids_temp;
2618 uuids_temp = realloc(uuids, obdcount *
2619 sizeof(struct obd_uuid));
2620 if (uuids_temp != NULL) {
2622 goto retry_get_uuids;
2627 llapi_error(LLAPI_MSG_ERROR, ret, "cannot get ost uuid");
2631 indexes = malloc(num_obds * sizeof(*obdindex));
2632 if (indexes == NULL) {
2637 for (obdnum = 0; obdnum < num_obds; obdnum++) {
2640 /* The user may have specified a simple index */
2641 i = strtol(obduuids[obdnum].uuid, &end, 0);
2642 if (end && *end == '\0' && i < obdcount) {
2643 indexes[obdnum] = i;
2646 for (i = 0; i < obdcount; i++) {
2647 if (llapi_uuid_match(uuids[i].uuid,
2648 obduuids[obdnum].uuid)) {
2649 indexes[obdnum] = i;
2655 if (i >= obdcount) {
2656 indexes[obdnum] = OBD_NOT_FOUND;
2657 llapi_err_noerrno(LLAPI_MSG_ERROR,
2658 "invalid obduuid '%s'",
2659 obduuids[obdnum].uuid);
2665 *obdindex = OBD_NOT_FOUND;
2667 *obdindex = obd_valid;
2669 *obdindexes = indexes;
2677 static int setup_target_indexes(int d, char *path, struct find_param *param)
2681 if (param->fp_mdt_uuid) {
2682 ret = setup_indexes(d, path, param->fp_mdt_uuid,
2684 ¶m->fp_mdt_indexes,
2685 ¶m->fp_mdt_index, LMV_TYPE);
2690 if (param->fp_obd_uuid) {
2691 ret = setup_indexes(d, path, param->fp_obd_uuid,
2693 ¶m->fp_obd_indexes,
2694 ¶m->fp_obd_index, LOV_TYPE);
2699 param->fp_got_uuids = 1;
2704 int llapi_ostlist(char *path, struct find_param *param)
2709 fd = open(path, O_RDONLY | O_DIRECTORY);
2713 ret = setup_obd_uuid(fd, path, param);
2720 * Tries to determine the default stripe attributes for a given filesystem. The
2721 * filesystem to check should be specified by fsname, or will be determined
2724 static int sattr_get_defaults(const char *const fsname,
2725 unsigned int *scount,
2726 unsigned int *ssize,
2727 unsigned int *soffset)
2733 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2734 "stripecount", val, sizeof(val));
2737 *scount = atoi(val);
2741 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2742 "stripesize", val, sizeof(val));
2749 rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
2750 "stripeoffset", val, sizeof(val));
2753 *soffset = atoi(val);
2760 * Tries to gather the default stripe attributes for a given filesystem. If
2761 * the attributes can be determined, they are cached for easy retreival the
2762 * next time they are needed. Only a single filesystem's attributes are
2765 int sattr_cache_get_defaults(const char *const fsname,
2766 const char *const pathname, unsigned int *scount,
2767 unsigned int *ssize, unsigned int *soffset)
2770 char fsname[PATH_MAX + 1];
2771 unsigned int stripecount;
2772 unsigned int stripesize;
2773 unsigned int stripeoffset;
2779 char fsname_buf[PATH_MAX + 1];
2780 unsigned int tmp[3];
2782 if (fsname == NULL) {
2783 rc = llapi_search_fsname(pathname, fsname_buf);
2787 snprintf(fsname_buf, sizeof(fsname_buf), "%s", fsname);
2790 if (strncmp(fsname_buf, cache.fsname, sizeof(fsname_buf) - 1) != 0) {
2792 * Ensure all 3 sattrs (count, size, and offset) are
2793 * successfully retrieved and stored in tmp before writing to
2796 rc = sattr_get_defaults(fsname_buf, &tmp[0], &tmp[1], &tmp[2]);
2800 cache.stripecount = tmp[0];
2801 cache.stripesize = tmp[1];
2802 cache.stripeoffset = tmp[2];
2803 snprintf(cache.fsname, sizeof(cache.fsname), "%s", fsname_buf);
2807 *scount = cache.stripecount;
2809 *ssize = cache.stripesize;
2811 *soffset = cache.stripeoffset;
2816 static char *layout2name(__u32 layout_pattern)
2818 if (layout_pattern & LOV_PATTERN_F_RELEASED)
2820 else if (layout_pattern == LOV_PATTERN_MDT)
2822 else if (layout_pattern == LOV_PATTERN_RAID0)
2824 else if (layout_pattern ==
2825 (LOV_PATTERN_RAID0 | LOV_PATTERN_OVERSTRIPING))
2826 return "raid0,overstriped";
2831 enum lov_dump_flags {
2832 LDF_IS_DIR = 0x0001,
2833 LDF_IS_RAW = 0x0002,
2834 LDF_INDENT = 0x0004,
2835 LDF_SKIP_OBJS = 0x0008,
2837 LDF_EXTENSION = 0x0020,
2840 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
2841 struct lov_user_ost_data_v1 *objects,
2842 enum llapi_layout_verbose verbose,
2843 int depth, char *pool_name,
2844 enum lov_dump_flags flags)
2846 bool is_dir = flags & LDF_IS_DIR;
2847 bool is_raw = flags & LDF_IS_RAW;
2848 bool indent = flags & LDF_INDENT;
2849 bool yaml = flags & LDF_YAML;
2850 bool skip_objs = flags & LDF_SKIP_OBJS;
2851 bool extension = flags & LDF_EXTENSION;
2852 char *prefix = is_dir ? "" : "lmm_";
2853 char *separator = "";
2854 char *space = indent ? " " : "";
2857 if (is_dir && lmm_oi_seq(&lum->lmm_oi) == FID_SEQ_LOV_DEFAULT) {
2858 lmm_oi_set_seq(&lum->lmm_oi, 0);
2859 if (!indent && (verbose & VERBOSE_DETAIL))
2860 llapi_printf(LLAPI_MSG_NORMAL, "%s(Default) ", space);
2863 if (!yaml && !indent && depth && path &&
2864 ((verbose != VERBOSE_OBJID) || !is_dir))
2865 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
2867 if ((verbose & VERBOSE_DETAIL) && !is_dir) {
2868 llapi_printf(LLAPI_MSG_NORMAL, "%s%smagic: 0x%08X\n",
2869 space, prefix, lum->lmm_magic);
2870 llapi_printf(LLAPI_MSG_NORMAL, "%s%sseq: %#jx\n",
2872 (uintmax_t)lmm_oi_seq(&lum->lmm_oi));
2873 llapi_printf(LLAPI_MSG_NORMAL, "%s%sobject_id: %#jx\n",
2875 (uintmax_t)lmm_oi_id(&lum->lmm_oi));
2877 if ((verbose & (VERBOSE_DETAIL | VERBOSE_DFID)) && !is_dir) {
2882 if (verbose & ~VERBOSE_DFID)
2883 llapi_printf(LLAPI_MSG_NORMAL, "%slmm_fid: ",
2886 * This needs a bit of hand-holding since old 1.x lmm_oi
2887 * have { oi.oi_id = mds_inum, oi.oi_seq = 0 } and 2.x lmm_oi
2888 * have { oi.oi_id = mds_oid, oi.oi_seq = mds_seq } instead of
2889 * a real FID. Ideally the 2.x code would have stored this
2890 * like a FID with { oi_id = mds_seq, oi_seq = mds_oid } so the
2891 * ostid union lu_fid { f_seq = mds_seq, f_oid = mds_oid }
2892 * worked properly (especially since IGIF FIDs use mds_inum as
2893 * the FID SEQ), but unfortunately that didn't happen.
2895 * Print it to look like an IGIF FID, even though the fields
2896 * are reversed on disk, so that it makes sense to userspace.
2898 * Don't use ostid_id() and ostid_seq(), since they assume the
2899 * oi_fid fields are in the right order. This is why there are
2900 * separate lmm_oi_seq() and lmm_oi_id() routines for this.
2902 * For newer layout types hopefully this will be a real FID.
2904 seq = lmm_oi_seq(&lum->lmm_oi) == 0 ?
2905 lmm_oi_id(&lum->lmm_oi) : lmm_oi_seq(&lum->lmm_oi);
2906 oid = lmm_oi_seq(&lum->lmm_oi) == 0 ?
2907 0 : (__u32)lmm_oi_id(&lum->lmm_oi);
2908 ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
2910 llapi_printf(LLAPI_MSG_NORMAL, DFID_NOBRACE"\n",
2911 (unsigned long long)seq, oid, ver);
2913 llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
2914 (unsigned long long)seq, oid, ver);
2917 if (verbose & VERBOSE_STRIPE_COUNT) {
2918 if (verbose & ~VERBOSE_STRIPE_COUNT)
2919 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_count: ",
2922 if (!is_raw && lum->lmm_stripe_count == 0 &&
2923 lov_pattern(lum->lmm_pattern) != LOV_PATTERN_MDT) {
2924 unsigned int scount;
2926 rc = sattr_cache_get_defaults(NULL, path,
2930 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2933 llapi_error(LLAPI_MSG_ERROR, rc,
2934 "Cannot determine default stripe count.");
2936 llapi_printf(LLAPI_MSG_NORMAL, "%d",
2938 (__s16)lum->lmm_stripe_count);
2941 llapi_printf(LLAPI_MSG_NORMAL, "%hd",
2943 (__s16)lum->lmm_stripe_count);
2945 if (!yaml && is_dir)
2951 if (((verbose & VERBOSE_STRIPE_SIZE) && !extension) ||
2952 ((verbose & VERBOSE_EXT_SIZE) && extension)) {
2953 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2954 if (verbose & ~VERBOSE_EXT_SIZE && extension)
2955 llapi_printf(LLAPI_MSG_NORMAL, "%s%sextension_size: ",
2957 if (verbose & ~VERBOSE_STRIPE_SIZE && !extension)
2958 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_size: ",
2960 if (is_dir && !is_raw && lum->lmm_stripe_size == 0) {
2963 rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
2966 llapi_printf(LLAPI_MSG_NORMAL, "%u", ssize);
2968 llapi_error(LLAPI_MSG_ERROR, rc,
2969 "Cannot determine default stripe size.");
2971 /* Extension size is in KiB */
2972 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
2974 (unsigned long long)(lum->lmm_stripe_size * SEL_UNIT_SIZE) :
2975 (unsigned long long)lum->lmm_stripe_size);
2977 if (!yaml && is_dir)
2983 if ((verbose & VERBOSE_PATTERN)) {
2984 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2985 if (verbose & ~VERBOSE_PATTERN)
2986 llapi_printf(LLAPI_MSG_NORMAL, "%s%spattern: ",
2988 if (lov_pattern_supported(lum->lmm_pattern))
2989 llapi_printf(LLAPI_MSG_NORMAL, "%s",
2990 layout2name(lum->lmm_pattern));
2992 llapi_printf(LLAPI_MSG_NORMAL, "%x", lum->lmm_pattern);
2993 separator = (!yaml && is_dir) ? " " : "\n";
2996 if ((verbose & VERBOSE_GENERATION) && !is_dir) {
2997 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
2998 if (verbose & ~VERBOSE_GENERATION)
2999 llapi_printf(LLAPI_MSG_NORMAL, "%s%slayout_gen: ",
3001 llapi_printf(LLAPI_MSG_NORMAL, "%u",
3002 skip_objs ? 0 : (int)lum->lmm_layout_gen);
3006 if (verbose & VERBOSE_STRIPE_OFFSET) {
3007 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3008 if (verbose & ~VERBOSE_STRIPE_OFFSET)
3009 llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_offset: ",
3011 if (is_dir || skip_objs)
3012 llapi_printf(LLAPI_MSG_NORMAL, "%d",
3013 lum->lmm_stripe_offset ==
3014 (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
3015 lum->lmm_stripe_offset);
3016 else if (lov_pattern(lum->lmm_pattern) == LOV_PATTERN_MDT)
3017 llapi_printf(LLAPI_MSG_NORMAL, "0");
3019 llapi_printf(LLAPI_MSG_NORMAL, "%u",
3020 objects[0].l_ost_idx);
3021 if (!yaml && is_dir)
3027 if ((verbose & VERBOSE_POOL) && pool_name && (pool_name[0] != '\0')) {
3028 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3029 if (verbose & ~VERBOSE_POOL)
3030 llapi_printf(LLAPI_MSG_NORMAL, "%s%spool: ",
3032 llapi_printf(LLAPI_MSG_NORMAL, "%s", pool_name);
3033 if (!yaml && is_dir)
3039 if (strlen(separator) != 0)
3040 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3043 void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
3044 struct lov_user_ost_data_v1 *objects,
3045 char *path, int obdindex, int depth,
3046 enum llapi_layout_verbose verbose,
3047 enum lov_dump_flags flags)
3049 bool is_dir = flags & LDF_IS_DIR;
3050 bool indent = flags & LDF_INDENT;
3051 bool skip_objs = flags & LDF_SKIP_OBJS;
3052 bool yaml = flags & LDF_YAML;
3053 bool obdstripe = obdindex == OBD_NOT_FOUND;
3056 if (!obdstripe && !skip_objs) {
3057 for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
3058 if (obdindex == objects[i].l_ost_idx) {
3068 lov_dump_user_lmm_header(lum, path, objects, verbose, depth, pool_name,
3071 if (!is_dir && !skip_objs && (verbose & VERBOSE_OBJID) &&
3072 !(lum->lmm_pattern & LOV_PATTERN_F_RELEASED ||
3073 lov_pattern(lum->lmm_pattern) == LOV_PATTERN_MDT)) {
3074 char *space = " - ";
3077 llapi_printf(LLAPI_MSG_NORMAL,
3078 "%6slmm_objects:\n", " ");
3080 llapi_printf(LLAPI_MSG_NORMAL, "lmm_objects:\n");
3082 llapi_printf(LLAPI_MSG_NORMAL,
3083 "\tobdidx\t\t objid\t\t objid\t\t group\n");
3085 for (i = 0; i < lum->lmm_stripe_count; i++) {
3086 int idx = objects[i].l_ost_idx;
3087 long long oid = ostid_id(&objects[i].l_ost_oi);
3088 long long gr = ostid_seq(&objects[i].l_ost_oi);
3090 if (obdindex != OBD_NOT_FOUND && obdindex != idx)
3094 struct lu_fid fid = { 0 };
3096 ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
3097 llapi_printf(LLAPI_MSG_NORMAL,
3098 "%sl_ost_idx: %d\n", space, idx);
3099 llapi_printf(LLAPI_MSG_NORMAL,
3100 "%8sl_fid: "DFID_NOBRACE"\n",
3102 } else if (indent) {
3103 struct lu_fid fid = { 0 };
3105 ostid_to_fid(&fid, &objects[i].l_ost_oi, idx);
3106 llapi_printf(LLAPI_MSG_NORMAL,
3107 "%s%d: { l_ost_idx: %d, l_fid: "DFID" }\n",
3108 space, i, idx, PFID(&fid));
3112 sprintf(fmt, "%s%s%s\n",
3113 "\t%6u\t%14llu\t%#13llx\t",
3114 (fid_seq_is_rsvd(gr) ||
3115 fid_seq_is_mdt0(gr)) ?
3116 "%14llu" : "%#14llx", "%s");
3117 llapi_printf(LLAPI_MSG_NORMAL, fmt, idx, oid,
3119 obdindex == idx ? " *" : "");
3123 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3126 void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
3127 char *path, int obdindex, int depth,
3128 enum llapi_layout_verbose verbose,
3129 enum lov_dump_flags flags)
3131 struct lmv_user_mds_data *objects = lum->lum_objects;
3132 char *prefix = lum->lum_magic == LMV_USER_MAGIC ? "(Default)" : "";
3133 char *separator = "";
3134 bool yaml = flags & LDF_YAML;
3135 bool obdstripe = false;
3138 if (obdindex != OBD_NOT_FOUND) {
3139 if (lum->lum_stripe_count == 0) {
3140 if (obdindex == lum->lum_stripe_offset)
3143 for (i = 0; i < lum->lum_stripe_count; i++) {
3144 if (obdindex == objects[i].lum_mds) {
3145 llapi_printf(LLAPI_MSG_NORMAL,
3160 /* show all information default */
3162 if (lum->lum_magic == LMV_USER_MAGIC)
3163 verbose = VERBOSE_POOL | VERBOSE_STRIPE_COUNT |
3164 VERBOSE_STRIPE_OFFSET | VERBOSE_HASH_TYPE;
3166 verbose = VERBOSE_OBJID;
3169 if (depth && path && ((verbose != VERBOSE_OBJID)))
3170 llapi_printf(LLAPI_MSG_NORMAL, "%s%s\n", prefix, path);
3172 if (verbose & VERBOSE_STRIPE_COUNT) {
3173 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3174 if (verbose & ~VERBOSE_STRIPE_COUNT)
3175 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_count: ");
3176 llapi_printf(LLAPI_MSG_NORMAL, "%u",
3177 (int)lum->lum_stripe_count);
3178 if ((verbose & VERBOSE_STRIPE_OFFSET) && !yaml)
3184 if (verbose & VERBOSE_STRIPE_OFFSET) {
3185 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3186 if (verbose & ~VERBOSE_STRIPE_OFFSET)
3187 llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_offset: ");
3188 llapi_printf(LLAPI_MSG_NORMAL, "%d",
3189 (int)lum->lum_stripe_offset);
3190 if (verbose & VERBOSE_HASH_TYPE && !yaml)
3196 if (verbose & VERBOSE_HASH_TYPE) {
3197 unsigned int type = lum->lum_hash_type & LMV_HASH_TYPE_MASK;
3198 unsigned int flags = lum->lum_hash_type & ~LMV_HASH_TYPE_MASK;
3200 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3201 if (verbose & ~VERBOSE_HASH_TYPE)
3202 llapi_printf(LLAPI_MSG_NORMAL, "lmv_hash_type: ");
3203 if (type < LMV_HASH_TYPE_MAX)
3204 llapi_printf(LLAPI_MSG_NORMAL, "%s",
3205 mdt_hash_name[type]);
3207 llapi_printf(LLAPI_MSG_NORMAL, "%#x", type);
3209 if (flags & LMV_HASH_FLAG_MIGRATION)
3210 llapi_printf(LLAPI_MSG_NORMAL, ",migrating");
3211 if (flags & LMV_HASH_FLAG_BAD_TYPE)
3212 llapi_printf(LLAPI_MSG_NORMAL, ",bad_type");
3213 if (flags & LMV_HASH_FLAG_LOST_LMV)
3214 llapi_printf(LLAPI_MSG_NORMAL, ",lost_lmv");
3219 if (verbose & VERBOSE_OBJID && lum->lum_magic != LMV_USER_MAGIC) {
3220 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3221 if (lum->lum_stripe_count > 0)
3222 llapi_printf(LLAPI_MSG_NORMAL,
3223 "mdtidx\t\t FID[seq:oid:ver]\n");
3224 for (i = 0; i < lum->lum_stripe_count; i++) {
3225 int idx = objects[i].lum_mds;
3226 struct lu_fid *fid = &objects[i].lum_fid;
3228 if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
3229 llapi_printf(LLAPI_MSG_NORMAL,
3230 "%6u\t\t "DFID"\t\t%s\n",
3232 obdindex == idx ? " *" : "");
3236 if ((verbose & VERBOSE_POOL) && pool_name != NULL &&
3237 pool_name[0] != '\0') {
3238 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3239 if (verbose & ~VERBOSE_POOL)
3240 llapi_printf(LLAPI_MSG_NORMAL, "%slmv_pool: ",
3242 llapi_printf(LLAPI_MSG_NORMAL, "%s%c ", pool_name, ' ');
3246 if (!(verbose & VERBOSE_OBJID) || lum->lum_magic == LMV_USER_MAGIC)
3247 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3250 static void lov_dump_comp_v1_header(struct find_param *param, char *path,
3251 enum lov_dump_flags flags)
3253 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
3254 int depth = param->fp_max_depth;
3255 enum llapi_layout_verbose verbose = param->fp_verbose;
3256 bool yaml = flags & LDF_YAML;
3258 if (depth && path && ((verbose != VERBOSE_OBJID) ||
3259 !(flags & LDF_IS_DIR)) && !yaml)
3260 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
3262 if (verbose & VERBOSE_DETAIL) {
3263 llapi_printf(LLAPI_MSG_NORMAL, "composite_header:\n");
3264 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_magic: 0x%08X\n",
3265 " ", comp_v1->lcm_magic);
3266 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_size: %u\n",
3267 " ", comp_v1->lcm_size);
3268 if (flags & LDF_IS_DIR)
3269 llapi_printf(LLAPI_MSG_NORMAL,
3270 "%2slcm_flags: %s\n", " ",
3271 comp_v1->lcm_mirror_count > 0 ?
3274 llapi_printf(LLAPI_MSG_NORMAL,
3275 "%2slcm_flags: %s\n", " ",
3276 llapi_layout_flags_string(comp_v1->lcm_flags));
3279 if (verbose & VERBOSE_GENERATION) {
3280 if (verbose & ~VERBOSE_GENERATION)
3281 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_layout_gen: ",
3283 llapi_printf(LLAPI_MSG_NORMAL, "%u\n", comp_v1->lcm_layout_gen);
3286 if (verbose & VERBOSE_MIRROR_COUNT) {
3287 if (verbose & ~VERBOSE_MIRROR_COUNT)
3288 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_mirror_count: ",
3290 llapi_printf(LLAPI_MSG_NORMAL, "%u\n",
3291 comp_v1->lcm_magic == LOV_USER_MAGIC_COMP_V1 ?
3292 comp_v1->lcm_mirror_count + 1 : 1);
3295 if (verbose & VERBOSE_COMP_COUNT) {
3296 if (verbose & ~VERBOSE_COMP_COUNT)
3297 llapi_printf(LLAPI_MSG_NORMAL, "%2slcm_entry_count: ",
3299 llapi_printf(LLAPI_MSG_NORMAL, "%u\n",
3300 comp_v1->lcm_magic == LOV_USER_MAGIC_COMP_V1 ?
3301 comp_v1->lcm_entry_count : 0);
3304 if (verbose & VERBOSE_DETAIL && !yaml)
3305 llapi_printf(LLAPI_MSG_NORMAL, "components:\n");
3308 static void lcme_flags2str(__u32 comp_flags)
3314 llapi_printf(LLAPI_MSG_NORMAL, "0");
3317 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
3318 if (comp_flags & comp_flags_table[i].cfn_flag) {
3320 llapi_printf(LLAPI_MSG_NORMAL, ",");
3321 llapi_printf(LLAPI_MSG_NORMAL, "%s",
3322 comp_flags_table[i].cfn_name);
3323 comp_flags &= ~comp_flags_table[i].cfn_flag;
3329 llapi_printf(LLAPI_MSG_NORMAL, ",");
3330 llapi_printf(LLAPI_MSG_NORMAL, "%#x", comp_flags);
3334 static void lov_dump_comp_v1_entry(struct find_param *param,
3335 enum lov_dump_flags flags, int index)
3337 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
3338 struct lov_comp_md_entry_v1 *entry;
3339 char *separator = "";
3340 enum llapi_layout_verbose verbose = param->fp_verbose;
3341 bool yaml = flags & LDF_YAML;
3343 entry = &comp_v1->lcm_entries[index];
3346 llapi_printf(LLAPI_MSG_NORMAL, "%2scomponent%d:\n", " ", index);
3348 if (verbose & VERBOSE_COMP_ID) {
3349 if (verbose & VERBOSE_DETAIL && !yaml)
3350 llapi_printf(LLAPI_MSG_NORMAL,
3351 "%slcme_id: ", " - ");
3352 else if (verbose & ~VERBOSE_COMP_ID)
3353 llapi_printf(LLAPI_MSG_NORMAL,
3354 "%4slcme_id: ", " ");
3355 if (entry->lcme_id != LCME_ID_INVAL)
3356 llapi_printf(LLAPI_MSG_NORMAL, "%u", entry->lcme_id);
3358 llapi_printf(LLAPI_MSG_NORMAL, "N/A");
3362 if (verbose & VERBOSE_MIRROR_ID) {
3363 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3364 if (verbose & ~VERBOSE_MIRROR_ID)
3365 llapi_printf(LLAPI_MSG_NORMAL,
3366 "%4slcme_mirror_id: ", " ");
3367 if (entry->lcme_id != LCME_ID_INVAL)
3368 llapi_printf(LLAPI_MSG_NORMAL, "%u",
3369 mirror_id_of(entry->lcme_id));
3371 llapi_printf(LLAPI_MSG_NORMAL, "N/A");
3375 if (verbose & VERBOSE_COMP_FLAGS) {
3376 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3377 if (verbose & ~VERBOSE_COMP_FLAGS)
3378 llapi_printf(LLAPI_MSG_NORMAL,
3379 "%4slcme_flags: ", " ");
3380 lcme_flags2str(entry->lcme_flags);
3383 /* print snapshot timestamp if its a nosync comp */
3384 if ((verbose & VERBOSE_COMP_FLAGS) &&
3385 (entry->lcme_flags & LCME_FL_NOSYNC)) {
3386 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3387 if (verbose & ~VERBOSE_COMP_FLAGS)
3388 llapi_printf(LLAPI_MSG_NORMAL,
3389 "%4slcme_timestamp: ", " ");
3391 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3392 (unsigned long long)entry->lcme_timestamp);
3394 time_t stamp = entry->lcme_timestamp;
3395 char *date_str = asctime(localtime(&stamp));
3397 date_str[strlen(date_str) - 1] = '\0';
3398 llapi_printf(LLAPI_MSG_NORMAL, "'%s'", date_str);
3404 if (verbose & VERBOSE_COMP_START) {
3405 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3406 if (verbose & ~VERBOSE_COMP_START)
3407 llapi_printf(LLAPI_MSG_NORMAL,
3408 "%4slcme_extent.e_start: ", " ");
3409 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3410 (unsigned long long)entry->lcme_extent.e_start);
3414 if (verbose & VERBOSE_COMP_END) {
3415 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3416 if (verbose & ~VERBOSE_COMP_END)
3417 llapi_printf(LLAPI_MSG_NORMAL,
3418 "%4slcme_extent.e_end: ", " ");
3419 if (entry->lcme_extent.e_end == LUSTRE_EOF)
3420 llapi_printf(LLAPI_MSG_NORMAL, "%s", "EOF");
3422 llapi_printf(LLAPI_MSG_NORMAL, "%llu",
3423 (unsigned long long)entry->lcme_extent.e_end);
3428 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3429 llapi_printf(LLAPI_MSG_NORMAL, "%4ssub_layout:\n", " ");
3430 } else if (verbose & VERBOSE_DETAIL) {
3431 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3432 llapi_printf(LLAPI_MSG_NORMAL, "%4slcme_offset: %u\n",
3433 " ", entry->lcme_offset);
3434 llapi_printf(LLAPI_MSG_NORMAL, "%4slcme_size: %u\n",
3435 " ", entry->lcme_size);
3436 llapi_printf(LLAPI_MSG_NORMAL, "%4ssub_layout:\n", " ");
3438 llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
3443 * Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
3444 * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
3446 * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
3447 * The table below gives the answers for the specified parameters (value and
3448 * sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
3449 * --------------------------------------
3450 * 1 | file > limit; sign > 0 | -1 / -1 |
3451 * 2 | file = limit; sign > 0 | -1 / -1 |
3452 * 3 | file < limit; sign > 0 | ? / 1 |
3453 * 4 | file > limit; sign = 0 | -1 / -1 |
3454 * 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
3455 * 6 | file < limit; sign = 0 | ? / -1 |
3456 * 7 | file > limit; sign < 0 | 1 / 1 |
3457 * 8 | file = limit; sign < 0 | ? / -1 |
3458 * 9 | file < limit; sign < 0 | ? / -1 |
3459 * --------------------------------------
3460 * Note: 5th actually means that the value is within the interval
3461 * (limit - margin, limit].
3463 static int find_value_cmp(unsigned long long file, unsigned long long limit,
3464 int sign, int negopt, unsigned long long margin,
3470 /* Drop the fraction of margin (of days or size). */
3471 if (file + margin <= limit)
3473 } else if (sign == 0) {
3474 if (file <= limit && file + margin > limit)
3476 else if (file + margin <= limit)
3478 } else if (sign < 0) {
3485 return negopt ? ~ret + 1 : ret;
3488 static inline struct lov_user_md *
3489 lov_comp_entry(struct lov_comp_md_v1 *comp_v1, int ent_idx)
3491 return (struct lov_user_md *)((char *)comp_v1 +
3492 comp_v1->lcm_entries[ent_idx].lcme_offset);
3495 static inline struct lov_user_ost_data_v1 *
3496 lov_v1v3_objects(struct lov_user_md *v1)
3498 if (v1->lmm_magic == LOV_USER_MAGIC_V3)
3499 return ((struct lov_user_md_v3 *)v1)->lmm_objects;
3501 return v1->lmm_objects;
3505 lov_v1v3_pool_name(struct lov_user_md *v1, char *pool_name)
3507 if (v1->lmm_magic == LOV_USER_MAGIC_V3)
3508 snprintf(pool_name, LOV_MAXPOOLNAME, "%s",
3509 ((struct lov_user_md_v3 *)v1)->lmm_pool_name);
3511 pool_name[0] = '\0';
3515 print_last_init_comp(struct find_param *param)
3517 /* print all component info */
3518 if ((param->fp_verbose & VERBOSE_DEFAULT) == VERBOSE_DEFAULT)
3521 /* print specific component info */
3522 if (param->fp_check_comp_id || param->fp_check_comp_flags ||
3523 param->fp_check_comp_start || param->fp_check_comp_end ||
3524 param->fp_check_mirror_id || param->fp_check_mirror_index)
3530 static int find_comp_end_cmp(unsigned long long end, struct find_param *param)
3534 if (param->fp_comp_end == LUSTRE_EOF) {
3535 if (param->fp_comp_end_sign == 0) /* equal to EOF */
3536 match = end == LUSTRE_EOF ? 1 : -1;
3537 else if (param->fp_comp_end_sign > 0) /* at most EOF */
3538 match = end == LUSTRE_EOF ? -1 : 1;
3539 else /* at least EOF */
3541 if (param->fp_exclude_comp_end)
3544 unsigned long long margin;
3546 margin = end == LUSTRE_EOF ? 0 : param->fp_comp_end_units;
3547 match = find_value_cmp(end, param->fp_comp_end,
3548 param->fp_comp_end_sign,
3549 param->fp_exclude_comp_end, margin, 0);
3556 * An example of "getstripe -v" for a two components PFL file:
3559 * lcm_magic: 0x0BD60BD0
3563 * lcm_entry_count: 2
3567 * lcme_extent.e_start: 0
3568 * lcme_extent.e_end: 1048576
3572 * lmm_magic: 0x0BD10BD0
3573 * lmm_seq: 0x200000401
3574 * lmm_object_id: 0x1
3575 * lmm_fid: [0x200000401:0x1:0x0]
3576 * lmm_stripe_count: 1
3577 * lmm_stripe_size: 1048576
3578 * lmm_pattern: raid0
3580 * lmm_stripe_offset: 0
3582 * - 0: { l_ost_idx: 0, l_fid: [0x100000000:0x2:0x0] }
3586 * lcme_extent.e_start: 1048576
3587 * lcme_extent.e_end: EOF
3591 * lmm_magic: 0x0BD10BD0
3592 * lmm_seq: 0x200000401
3593 * lmm_object_id: 0x1
3594 * lmm_fid: [0x200000401:0x1:0x0]
3595 * lmm_stripe_count: 2
3596 * lmm_stripe_size: 1048576
3597 * lmm_pattern: raid0
3599 * lmm_stripe_offset: 1
3601 * - 0: { l_ost_idx: 1, l_fid: [0x100010000:0x2:0x0] }
3602 * - 1: { l_ost_idx: 0, l_fid: [0x100000000:0x3:0x0] }
3604 static void lov_dump_comp_v1(struct find_param *param, char *path,
3605 enum lov_dump_flags flags)
3607 struct lov_comp_md_entry_v1 *entry;
3608 struct lov_user_ost_data_v1 *objects;
3609 struct lov_comp_md_v1 *comp_v1 = (void *)¶m->fp_lmd->lmd_lmm;
3610 struct lov_user_md_v1 *v1;
3611 char pool_name[LOV_MAXPOOLNAME + 1];
3612 int obdindex = param->fp_obd_index;
3613 int i, j, match, ext;
3614 bool obdstripe = false;
3615 __u16 mirror_index = 0;
3616 __u16 mirror_id = 0;
3618 if (obdindex != OBD_NOT_FOUND) {
3619 for (i = 0; !(flags & LDF_IS_DIR) && !obdstripe &&
3620 i < comp_v1->lcm_entry_count; i++) {
3621 if (!(comp_v1->lcm_entries[i].lcme_flags &
3625 v1 = lov_comp_entry(comp_v1, i);
3626 objects = lov_v1v3_objects(v1);
3628 for (j = 0; j < v1->lmm_stripe_count; j++) {
3629 if (obdindex == objects[j].l_ost_idx) {
3642 lov_dump_comp_v1_header(param, path, flags);
3644 flags |= LDF_INDENT;
3646 for (i = 0; i < comp_v1->lcm_entry_count; i++) {
3647 entry = &comp_v1->lcm_entries[i];
3649 if (param->fp_check_comp_flags) {
3650 if (((param->fp_comp_flags & entry->lcme_flags) !=
3651 param->fp_comp_flags) ||
3652 (param->fp_comp_neg_flags & entry->lcme_flags))
3656 if (param->fp_check_comp_id &&
3657 param->fp_comp_id != entry->lcme_id)
3660 if (param->fp_check_comp_start) {
3661 match = find_value_cmp(entry->lcme_extent.e_start,
3662 param->fp_comp_start,
3663 param->fp_comp_start_sign,
3665 param->fp_comp_start_units, 0);
3670 if (param->fp_check_comp_end) {
3671 match = find_comp_end_cmp(entry->lcme_extent.e_end,
3677 if (param->fp_check_mirror_index) {
3678 if (mirror_id != mirror_id_of(entry->lcme_id)) {
3680 mirror_id = mirror_id_of(entry->lcme_id);
3683 match = find_value_cmp(mirror_index,
3684 param->fp_mirror_index,
3685 param->fp_mirror_index_sign,
3686 param->fp_exclude_mirror_index,
3690 } else if (param->fp_check_mirror_id) {
3691 if (mirror_id != mirror_id_of(entry->lcme_id))
3692 mirror_id = mirror_id_of(entry->lcme_id);
3694 match = find_value_cmp(mirror_id,
3695 param->fp_mirror_id,
3696 param->fp_mirror_id_sign,
3697 param->fp_exclude_mirror_id,
3703 if (print_last_init_comp(param)) {
3705 * if part of stripe info is needed, we'd print only
3706 * the last instantiated component info.
3708 if (entry->lcme_flags & LCME_FL_INIT)
3711 if (param->fp_verbose & VERBOSE_EXT_SIZE) {
3712 if (entry->lcme_flags & LCME_FL_EXTENSION)
3713 /* moved back below */
3721 if (entry->lcme_flags & LCME_FL_INIT) {
3722 if (obdindex != OBD_NOT_FOUND) {
3723 flags |= LDF_SKIP_OBJS;
3724 v1 = lov_comp_entry(comp_v1, i);
3725 objects = lov_v1v3_objects(v1);
3727 for (j = 0; j < v1->lmm_stripe_count; j++) {
3728 if (obdindex == objects[j].l_ost_idx) {
3729 flags &= ~LDF_SKIP_OBJS;
3734 flags &= ~LDF_SKIP_OBJS;
3737 flags |= LDF_SKIP_OBJS;
3740 if (obdindex != OBD_NOT_FOUND && (flags & LDF_SKIP_OBJS))
3742 lov_dump_comp_v1_entry(param, flags, i);
3744 v1 = lov_comp_entry(comp_v1, i);
3745 objects = lov_v1v3_objects(v1);
3746 lov_v1v3_pool_name(v1, pool_name);
3748 ext = entry->lcme_flags & LCME_FL_EXTENSION ? LDF_EXTENSION : 0;
3749 lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
3750 param->fp_max_depth, param->fp_verbose,
3753 if (print_last_init_comp(param)) {
3755 * directory layout contains only layout template, print the
3759 i = comp_v1->lcm_entry_count - 1;
3762 flags &= ~LDF_SKIP_OBJS;
3764 lov_dump_comp_v1_entry(param, flags, i);
3766 v1 = lov_comp_entry(comp_v1, i);
3767 objects = lov_v1v3_objects(v1);
3768 lov_v1v3_pool_name(v1, pool_name);
3770 entry = &comp_v1->lcm_entries[i];
3771 ext = entry->lcme_flags & LCME_FL_EXTENSION ? LDF_EXTENSION : 0;
3772 lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
3773 param->fp_max_depth, param->fp_verbose,
3778 #define VERBOSE_COMP_OPTS (VERBOSE_COMP_COUNT | VERBOSE_COMP_ID | \
3779 VERBOSE_COMP_START | VERBOSE_COMP_END | \
3782 static inline bool has_any_comp_options(struct find_param *param)
3784 enum llapi_layout_verbose verbose = param->fp_verbose;
3786 if (param->fp_check_comp_id || param->fp_check_comp_count ||
3787 param->fp_check_comp_start || param->fp_check_comp_end ||
3788 param->fp_check_comp_flags)
3791 /* show full layout information, not component specific */
3792 if ((verbose & ~VERBOSE_DETAIL) == VERBOSE_DEFAULT)
3795 return verbose & VERBOSE_COMP_OPTS;
3798 struct lov_user_mds_data *lov_forge_comp_v1(struct lov_user_mds_data *orig,
3801 struct lov_user_md *lum = &orig->lmd_lmm;
3802 struct lov_user_mds_data *new;
3803 struct lov_comp_md_v1 *comp_v1;
3804 struct lov_comp_md_entry_v1 *ent;
3805 int lum_off = sizeof(*comp_v1) + sizeof(*ent);
3806 int lum_size = lov_user_md_size(is_dir ? 0 : lum->lmm_stripe_count,
3809 new = malloc(offsetof(typeof(*new), lmd_lmm) + lum_off + lum_size);
3811 llapi_printf(LLAPI_MSG_NORMAL, "out of memory\n");
3815 memcpy(new, orig, sizeof(new->lmd_stx) + sizeof(new->lmd_flags)
3816 + sizeof(new->lmd_lmmsize));
3818 comp_v1 = (struct lov_comp_md_v1 *)&new->lmd_lmm;
3819 comp_v1->lcm_magic = lum->lmm_magic;
3820 comp_v1->lcm_size = lum_off + lum_size;
3821 comp_v1->lcm_layout_gen = is_dir ? 0 : lum->lmm_layout_gen;
3822 comp_v1->lcm_flags = 0;
3823 comp_v1->lcm_entry_count = 1;
3825 ent = &comp_v1->lcm_entries[0];
3827 ent->lcme_flags = is_dir ? 0 : LCME_FL_INIT;
3828 ent->lcme_extent.e_start = 0;
3829 ent->lcme_extent.e_end = LUSTRE_EOF;
3830 ent->lcme_offset = lum_off;
3831 ent->lcme_size = lum_size;
3833 memcpy((char *)comp_v1 + lum_off, lum, lum_size);
3838 static void lov_dump_plain_user_lmm(struct find_param *param, char *path,
3839 enum lov_dump_flags flags)
3841 __u32 magic = *(__u32 *)¶m->fp_lmd->lmd_lmm;
3843 if (has_any_comp_options(param)) {
3844 struct lov_user_mds_data *new_lmd, *orig_lmd;
3846 orig_lmd = param->fp_lmd;
3847 new_lmd = lov_forge_comp_v1(orig_lmd, flags & LDF_IS_DIR);
3848 if (new_lmd != NULL) {
3849 param->fp_lmd = new_lmd;
3850 lov_dump_comp_v1(param, path, flags);
3851 param->fp_lmd = orig_lmd;
3857 if (magic == LOV_USER_MAGIC_V1) {
3858 lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm, NULL,
3859 param->fp_lmd->lmd_lmm.lmm_objects,
3860 path, param->fp_obd_index,
3861 param->fp_max_depth, param->fp_verbose,
3864 char pool_name[LOV_MAXPOOLNAME + 1];
3865 struct lov_user_ost_data_v1 *objects;
3866 struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
3868 snprintf(pool_name, sizeof(pool_name), "%s",
3869 lmmv3->lmm_pool_name);
3870 objects = lmmv3->lmm_objects;
3871 lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm, pool_name,
3872 objects, path, param->fp_obd_index,
3873 param->fp_max_depth, param->fp_verbose,
3878 static uint32_t check_foreign_type(uint32_t foreign_type)
3882 for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
3883 if (lu_foreign_types[i].lft_name == NULL)
3885 if (foreign_type == lu_foreign_types[i].lft_type)
3889 return LU_FOREIGN_TYPE_UNKNOWN;
3892 static void lov_dump_foreign_lmm(struct find_param *param, char *path,
3893 enum lov_dump_flags flags)
3895 struct lov_foreign_md *lfm = (void *)¶m->fp_lmd->lmd_lmm;
3896 bool yaml = flags & LDF_YAML;
3898 if (!yaml && param->fp_depth && path)
3899 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
3901 if (param->fp_verbose & VERBOSE_DETAIL) {
3902 uint32_t type = check_foreign_type(lfm->lfm_type);
3904 llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic: 0x%08X\n",
3906 llapi_printf(LLAPI_MSG_NORMAL, "lfm_length: %u\n",
3908 llapi_printf(LLAPI_MSG_NORMAL, "lfm_type: 0x%08X",
3910 if (type < LU_FOREIGN_TYPE_UNKNOWN)
3911 llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
3912 lu_foreign_types[type].lft_name);
3914 llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
3916 llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags: 0x%08X\n",
3919 llapi_printf(LLAPI_MSG_NORMAL, "lfm_value: '%.*s'\n",
3920 lfm->lfm_length, lfm->lfm_value);
3921 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3924 static void lmv_dump_foreign_lmm(struct find_param *param, char *path,
3925 enum lov_dump_flags flags)
3927 struct lmv_foreign_md *lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
3928 bool yaml = flags & LDF_YAML;
3930 if (!yaml && param->fp_depth && path)
3931 llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
3933 if (param->fp_verbose & VERBOSE_DETAIL) {
3934 uint32_t type = check_foreign_type(lfm->lfm_type);
3936 llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic: 0x%08X\n",
3938 llapi_printf(LLAPI_MSG_NORMAL, "lfm_length: %u\n",
3940 llapi_printf(LLAPI_MSG_NORMAL, "lfm_type: 0x%08X",
3942 if (type < LU_FOREIGN_TYPE_UNKNOWN)
3943 llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
3944 lu_foreign_types[type].lft_name);
3946 llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
3948 llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags: 0x%08X\n",
3951 llapi_printf(LLAPI_MSG_NORMAL, "lfm_value: '%.*s'\n",
3952 lfm->lfm_length, lfm->lfm_value);
3953 llapi_printf(LLAPI_MSG_NORMAL, "\n");
3956 static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
3957 enum lov_dump_flags flags)
3961 if (param->fp_get_lmv || param->fp_get_default_lmv)
3962 magic = (__u32)param->fp_lmv_md->lum_magic;
3964 magic = *(__u32 *)¶m->fp_lmd->lmd_lmm; /* lum->lmm_magic */
3967 flags |= LDF_IS_RAW;
3972 case LOV_USER_MAGIC_V1:
3973 case LOV_USER_MAGIC_V3:
3974 case LOV_USER_MAGIC_SPECIFIC:
3975 lov_dump_plain_user_lmm(param, path, flags);
3977 case LOV_USER_MAGIC_FOREIGN:
3978 lov_dump_foreign_lmm(param, path, flags);
3981 case LMV_USER_MAGIC: {
3982 char pool_name[LOV_MAXPOOLNAME + 1];
3983 struct lmv_user_md *lum;
3985 lum = (struct lmv_user_md *)param->fp_lmv_md;
3986 snprintf(pool_name, sizeof(pool_name), "%s",
3987 lum->lum_pool_name);
3988 lmv_dump_user_lmm(lum, pool_name, path, param->fp_obd_index,
3989 param->fp_max_depth, param->fp_verbose,
3993 case LOV_USER_MAGIC_COMP_V1:
3994 lov_dump_comp_v1(param, path, flags);
3996 case LMV_MAGIC_FOREIGN:
3997 lmv_dump_foreign_lmm(param, path, flags);
4000 llapi_printf(LLAPI_MSG_NORMAL,
4001 "unknown lmm_magic: %#x (expecting one of %#x %#x %#x %#x)\n",
4002 *(__u32 *)¶m->fp_lmd->lmd_lmm,
4003 LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3,
4004 LMV_USER_MAGIC, LMV_MAGIC_V1);
4009 int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
4015 fname = strrchr(path, '/');
4017 /* It should be a file (or other non-directory) */
4018 if (fname == NULL) {
4019 dname = (char *)malloc(2);
4023 fname = (char *)path;
4025 dname = (char *)malloc(fname - path + 1);
4028 strncpy(dname, path, fname - path);
4029 dname[fname - path] = '\0';
4033 fd = open(dname, O_RDONLY | O_NONBLOCK);
4039 strcpy((char *)lum, fname);
4040 if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
4043 if (close(fd) == -1 && rc == 0)
4051 int llapi_file_lookup(int dirfd, const char *name)
4053 struct obd_ioctl_data data = { 0 };
4058 if (dirfd < 0 || name == NULL)
4061 data.ioc_version = OBD_IOCTL_VERSION;
4062 data.ioc_len = sizeof(data);
4063 data.ioc_inlbuf1 = (char *)name;
4064 data.ioc_inllen1 = strlen(name) + 1;
4066 rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
4068 llapi_error(LLAPI_MSG_ERROR, rc,
4069 "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
4074 rc = ioctl(dirfd, IOC_MDC_LOOKUP, buf);
4081 * Check if the file time matches all the given criteria (e.g. --atime +/-N).
4082 * Return -1 or 1 if file timestamp does not or does match the given criteria
4083 * correspondingly. Return 0 if the MDS time is being checked and there are
4084 * attributes on OSTs and it is not yet clear if the timespamp matches.
4086 * If 0 is returned, we need to do another RPC to the OSTs to obtain the
4087 * updated timestamps.
4089 static int find_time_check(struct find_param *param, int mds)
4091 struct lov_user_mds_data *lmd = param->fp_lmd;
4095 /* Check if file is accepted. */
4096 if (param->fp_atime) {
4097 rc2 = find_value_cmp(lmd->lmd_stx.stx_atime.tv_sec,
4098 param->fp_atime, param->fp_asign,
4099 param->fp_exclude_atime,
4100 param->fp_time_margin, mds);
4106 if (param->fp_mtime) {
4107 rc2 = find_value_cmp(lmd->lmd_stx.stx_mtime.tv_sec,
4108 param->fp_mtime, param->fp_msign,
4109 param->fp_exclude_mtime,
4110 param->fp_time_margin, mds);
4115 * If the previous check matches, but this one is not yet clear,
4116 * we should return 0 to do an RPC on OSTs.
4122 if (param->fp_ctime) {
4123 rc2 = find_value_cmp(lmd->lmd_stx.stx_ctime.tv_sec,
4124 param->fp_ctime, param->fp_csign,
4125 param->fp_exclude_ctime,
4126 param->fp_time_margin, mds);
4131 * If the previous check matches, but this one is not yet clear,
4132 * we should return 0 to do an RPC on OSTs.
4141 static int find_newerxy_check(struct find_param *param, int mds, bool from_mdt)
4143 struct lov_user_mds_data *lmd = param->fp_lmd;
4148 for (i = 0; i < 2; i++) {
4149 /* Check if file is accepted. */
4150 if (param->fp_newery[NEWERXY_ATIME][i]) {
4151 rc2 = find_value_cmp(lmd->lmd_stx.stx_atime.tv_sec,
4152 param->fp_newery[NEWERXY_ATIME][i],
4159 if (param->fp_newery[NEWERXY_MTIME][i]) {
4160 rc2 = find_value_cmp(lmd->lmd_stx.stx_mtime.tv_sec,
4161 param->fp_newery[NEWERXY_MTIME][i],
4167 * If the previous check matches, but this one is not
4168 * yet clear, we should return 0 to do an RPC on OSTs.
4174 if (param->fp_newery[NEWERXY_CTIME][i]) {
4175 rc2 = find_value_cmp(lmd->lmd_stx.stx_ctime.tv_sec,
4176 param->fp_newery[NEWERXY_CTIME][i],
4182 * If the previous check matches, but this one is not
4183 * yet clear, we should return 0 to do an RPC on OSTs.
4190 * File birth time (btime) can get from MDT directly.
4191 * if @from_mdt is true, it means the input file attributs are
4192 * obtained directly from MDT.
4193 * Thus, if @from_mdt is false, we should skip the following
4199 if (param->fp_newery[NEWERXY_BTIME][i]) {
4200 if (!(lmd->lmd_stx.stx_mask & STATX_BTIME))
4203 rc2 = find_value_cmp(lmd->lmd_stx.stx_btime.tv_sec,
4204 param->fp_newery[NEWERXY_BTIME][i],
4215 * Check whether the stripes matches the indexes user provided
4219 static int check_obd_match(struct find_param *param)
4221 struct lov_user_ost_data_v1 *objects;
4222 struct lov_comp_md_v1 *comp_v1 = NULL;
4223 struct lov_user_mds_data *lmd = param->fp_lmd;
4224 struct lov_user_md_v1 *v1 = &lmd->lmd_lmm;
4225 int i, j, k, count = 1;
4227 if (param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND)
4230 if (!S_ISREG(lmd->lmd_stx.stx_mode))
4233 /* exclude foreign */
4234 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4235 return param->fp_exclude_obd;
4238 * Only those files should be accepted, which have a
4239 * stripe on the specified OST.
4241 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4242 comp_v1 = (struct lov_comp_md_v1 *)v1;
4243 count = comp_v1->lcm_entry_count;
4246 for (i = 0; i < count; i++) {
4248 v1 = lov_comp_entry(comp_v1, i);
4250 objects = lov_v1v3_objects(v1);
4252 for (j = 0; j < v1->lmm_stripe_count; j++) {
4253 if (comp_v1 && !(comp_v1->lcm_entries[i].lcme_flags &
4256 for (k = 0; k < param->fp_num_obds; k++) {
4257 if (param->fp_obd_indexes[k] ==
4258 objects[j].l_ost_idx)
4259 return !param->fp_exclude_obd;
4264 return param->fp_exclude_obd;
4267 static int check_mdt_match(struct find_param *param)
4271 if (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND)
4274 /* FIXME: For striped dir, we should get stripe information and check */
4275 for (i = 0; i < param->fp_num_mdts; i++) {
4276 if (param->fp_mdt_indexes[i] == param->fp_file_mdt_index)
4277 return !param->fp_exclude_mdt;
4280 if (param->fp_exclude_mdt)
4287 * Check whether the obd is active or not, if it is
4288 * not active, just print the object affected by this
4291 static void print_failed_tgt(struct find_param *param, char *path, int type)
4293 struct obd_statfs stat_buf;
4294 struct obd_uuid uuid_buf;
4295 int tgt_nr, i, *indexes;
4298 if (type != LL_STATFS_LOV && type != LL_STATFS_LMV) {
4299 llapi_error(LLAPI_MSG_NORMAL, ret, "%s: wrong statfs type(%d)",
4304 tgt_nr = (type == LL_STATFS_LOV) ? param->fp_obd_index :
4305 param->fp_mdt_index;
4306 indexes = (type == LL_STATFS_LOV) ? param->fp_obd_indexes :
4307 param->fp_mdt_indexes;
4309 for (i = 0; i < tgt_nr; i++) {
4310 memset(&stat_buf, 0, sizeof(struct obd_statfs));
4311 memset(&uuid_buf, 0, sizeof(struct obd_uuid));
4313 ret = llapi_obd_statfs(path, type, indexes[i], &stat_buf,
4316 llapi_error(LLAPI_MSG_NORMAL, ret,
4317 "%s: obd_uuid: %s failed",
4318 __func__, param->fp_obd_uuid->uuid);
4322 static int find_check_stripe_size(struct find_param *param)
4324 struct lov_comp_md_v1 *comp_v1 = NULL;
4325 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4326 __u32 stripe_size = 0;
4327 int ret, i, count = 1;
4329 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4330 return param->fp_exclude_stripe_size ? 1 : -1;
4332 ret = param->fp_exclude_stripe_size ? 1 : -1;
4333 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4334 comp_v1 = (struct lov_comp_md_v1 *)v1;
4335 count = comp_v1->lcm_entry_count;
4338 for (i = 0; i < count; i++) {
4339 struct lov_comp_md_entry_v1 *ent;
4342 v1 = lov_comp_entry(comp_v1, i);
4344 ent = &comp_v1->lcm_entries[i];
4345 if (ent->lcme_flags & LCME_FL_EXTENSION)
4347 if (!(ent->lcme_flags & LCME_FL_INIT))
4350 stripe_size = v1->lmm_stripe_size;
4353 ret = find_value_cmp(stripe_size, param->fp_stripe_size,
4354 param->fp_stripe_size_sign,
4355 param->fp_exclude_stripe_size,
4356 param->fp_stripe_size_units, 0);
4361 static int find_check_ext_size(struct find_param *param)
4363 struct lov_comp_md_v1 *comp_v1;
4364 struct lov_user_md_v1 *v1;
4367 ret = param->fp_exclude_ext_size ? 1 : -1;
4368 comp_v1 = (struct lov_comp_md_v1 *)¶m->fp_lmd->lmd_lmm;
4369 if (comp_v1->lcm_magic != LOV_USER_MAGIC_COMP_V1)
4372 for (i = 0; i < comp_v1->lcm_entry_count; i++) {
4373 struct lov_comp_md_entry_v1 *ent;
4375 v1 = lov_comp_entry(comp_v1, i);
4377 ent = &comp_v1->lcm_entries[i];
4378 if (!(ent->lcme_flags & LCME_FL_EXTENSION))
4381 ret = find_value_cmp(v1->lmm_stripe_size, param->fp_ext_size,
4382 param->fp_ext_size_sign,
4383 param->fp_exclude_ext_size,
4384 param->fp_ext_size_units, 0);
4385 /* If any ext_size matches */
4393 static __u32 find_get_stripe_count(struct find_param *param)
4395 struct lov_comp_md_v1 *comp_v1 = NULL;
4396 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4398 __u32 stripe_count = 0;
4400 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4403 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4404 comp_v1 = (struct lov_comp_md_v1 *)v1;
4405 count = comp_v1->lcm_entry_count;
4408 for (i = 0; i < count; i++) {
4410 struct lov_comp_md_entry_v1 *ent;
4412 v1 = lov_comp_entry(comp_v1, i);
4414 ent = &comp_v1->lcm_entries[i];
4415 if (!(ent->lcme_flags & LCME_FL_INIT))
4418 if (ent->lcme_flags & LCME_FL_EXTENSION)
4421 stripe_count = v1->lmm_stripe_count;
4424 return stripe_count;
4427 #define LOV_PATTERN_INVALID 0xFFFFFFFF
4429 static int find_check_layout(struct find_param *param)
4431 struct lov_comp_md_v1 *comp_v1 = NULL;
4432 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4434 bool found = false, valid = false;
4436 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4437 comp_v1 = (struct lov_comp_md_v1 *)v1;
4438 count = comp_v1->lcm_entry_count;
4441 for (i = 0; i < count; i++) {
4443 v1 = lov_comp_entry(comp_v1, i);
4445 /* foreign file have a special magic but no pattern field */
4446 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4449 if (v1->lmm_pattern == LOV_PATTERN_INVALID)
4453 if (v1->lmm_pattern & param->fp_layout) {
4462 if ((found && !param->fp_exclude_layout) ||
4463 (!found && param->fp_exclude_layout))
4470 * if no type specified, check/exclude all foreign
4471 * if type specified, check all foreign&type and exclude !foreign + foreign&type
4473 static int find_check_foreign(struct find_param *param)
4475 if (S_ISREG(param->fp_lmd->lmd_stx.stx_mode)) {
4476 struct lov_foreign_md *lfm;
4478 lfm = (void *)¶m->fp_lmd->lmd_lmm;
4479 if (lfm->lfm_magic != LOV_USER_MAGIC_FOREIGN) {
4480 if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN)
4481 return param->fp_exclude_foreign ? 1 : -1;
4485 if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN ||
4486 lfm->lfm_type == param->fp_foreign_type)
4487 return param->fp_exclude_foreign ? -1 : 1;
4488 return param->fp_exclude_foreign ? 1 : -1;
4491 if (S_ISDIR(param->fp_lmd->lmd_stx.stx_mode)) {
4492 struct lmv_foreign_md *lfm;
4494 lfm = (void *)param->fp_lmv_md;
4495 if (lfm->lfm_magic != LMV_MAGIC_FOREIGN) {
4496 if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN)
4497 return param->fp_exclude_foreign ? 1 : -1;
4501 if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN ||
4502 lfm->lfm_type == param->fp_foreign_type)
4503 return param->fp_exclude_foreign ? -1 : 1;
4504 return param->fp_exclude_foreign ? 1 : -1;
4509 static int find_check_pool(struct find_param *param)
4511 struct lov_comp_md_v1 *comp_v1 = NULL;
4512 struct lov_user_md_v3 *v3 = (void *)¶m->fp_lmd->lmd_lmm;
4516 if (v3->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4517 comp_v1 = (struct lov_comp_md_v1 *)v3;
4518 count = comp_v1->lcm_entry_count;
4519 /* empty requested pool is taken as no pool search */
4520 if (count == 0 && param->fp_poolname[0] == '\0') {
4526 for (i = 0; i < count; i++) {
4527 if (comp_v1 != NULL) {
4528 if (!(comp_v1->lcm_entries[i].lcme_flags &
4532 v3 = (void *)lov_comp_entry(comp_v1, i);
4535 if (v3->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4538 if (((v3->lmm_magic == LOV_USER_MAGIC_V1) &&
4539 (param->fp_poolname[0] == '\0')) ||
4540 ((v3->lmm_magic == LOV_USER_MAGIC_V3) &&
4541 (strncmp(v3->lmm_pool_name,
4542 param->fp_poolname, LOV_MAXPOOLNAME) == 0)) ||
4543 ((v3->lmm_magic == LOV_USER_MAGIC_V3) &&
4544 (strcmp(param->fp_poolname, "*") == 0))) {
4551 if ((found && !param->fp_exclude_pool) ||
4552 (!found && param->fp_exclude_pool))
4558 static int find_check_comp_options(struct find_param *param)
4560 struct lov_comp_md_v1 *comp_v1, *forged_v1 = NULL;
4561 struct lov_user_mds_data *lmd = param->fp_lmd;
4562 struct lov_user_md_v1 *v1 = &lmd->lmd_lmm;
4563 struct lov_comp_md_entry_v1 *entry;
4566 if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
4569 if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
4570 comp_v1 = (struct lov_comp_md_v1 *)v1;
4572 forged_v1 = malloc(sizeof(*forged_v1) + sizeof(*entry));
4573 if (forged_v1 == NULL)
4575 comp_v1 = forged_v1;
4576 comp_v1->lcm_entry_count = 1;
4577 entry = &comp_v1->lcm_entries[0];
4578 entry->lcme_flags = S_ISDIR(lmd->lmd_stx.stx_mode) ?
4580 entry->lcme_extent.e_start = 0;
4581 entry->lcme_extent.e_end = LUSTRE_EOF;
4584 /* invalid case, don't match for any kind of search. */
4585 if (comp_v1->lcm_entry_count == 0) {
4590 if (param->fp_check_comp_count) {
4591 ret = find_value_cmp(forged_v1 ? 0 : comp_v1->lcm_entry_count,
4592 param->fp_comp_count,
4593 param->fp_comp_count_sign,
4594 param->fp_exclude_comp_count, 1, 0);
4600 for (i = 0; i < comp_v1->lcm_entry_count; i++) {
4601 entry = &comp_v1->lcm_entries[i];
4603 if (param->fp_check_comp_flags) {
4605 if (((param->fp_comp_flags & entry->lcme_flags) !=
4606 param->fp_comp_flags) ||
4607 (param->fp_comp_neg_flags & entry->lcme_flags)) {
4613 if (param->fp_check_comp_start) {
4614 ret = find_value_cmp(entry->lcme_extent.e_start,
4615 param->fp_comp_start,
4616 param->fp_comp_start_sign,
4617 param->fp_exclude_comp_start,
4618 param->fp_comp_start_units, 0);
4623 if (param->fp_check_comp_end) {
4624 ret = find_comp_end_cmp(entry->lcme_extent.e_end,
4630 /* the component matches all criteria */
4639 static int find_check_mirror_options(struct find_param *param)
4641 struct lov_comp_md_v1 *comp_v1;
4642 struct lov_user_md_v1 *v1 = ¶m->fp_lmd->lmd_lmm;
4645 if (v1->lmm_magic != LOV_USER_MAGIC_COMP_V1)
4648 comp_v1 = (struct lov_comp_md_v1 *)v1;
4650 if (param->fp_check_mirror_count) {
4651 ret = find_value_cmp(comp_v1->lcm_mirror_count + 1,
4652 param->fp_mirror_count,
4653 param->fp_mirror_count_sign,
4654 param->fp_exclude_mirror_count, 1, 0);
4659 if (param->fp_check_mirror_state) {
4661 __u16 file_state = comp_v1->lcm_flags & LCM_FL_FLR_MASK;
4663 if ((param->fp_mirror_state != 0 &&
4664 file_state != param->fp_mirror_state) ||
4665 file_state == param->fp_mirror_neg_state)
4672 static bool find_check_lmm_info(struct find_param *param)
4674 return param->fp_check_pool || param->fp_check_stripe_count ||
4675 param->fp_check_stripe_size || param->fp_check_layout ||
4676 param->fp_check_comp_count || param->fp_check_comp_end ||
4677 param->fp_check_comp_start || param->fp_check_comp_flags ||
4678 param->fp_check_mirror_count || param->fp_check_foreign ||
4679 param->fp_check_mirror_state || param->fp_check_ext_size ||
4680 param->fp_check_projid;
4684 * Get file/directory project id.
4685 * by the open fd resides on.
4686 * Return 0 and project id on success, or -ve errno.
4688 static int fget_projid(int fd, int *projid)
4693 rc = ioctl(fd, FS_IOC_FSGETXATTR, &fsx);
4697 *projid = fsx.fsx_projid;
4701 static int cb_find_init(char *path, int p, int *dp,
4702 void *data, struct dirent64 *de)
4704 struct find_param *param = (struct find_param *)data;
4705 struct lov_user_mds_data *lmd = param->fp_lmd;
4706 int d = dp == NULL ? -1 : *dp;
4707 int decision = 1; /* 1 is accepted; -1 is rejected. */
4709 int checked_type = 0;
4711 __u32 stripe_count = 0;
4715 if (p == -1 && d == -1)
4718 /* If a regular expression is presented, make the initial decision */
4719 if (param->fp_pattern != NULL) {
4720 char *fname = strrchr(path, '/');
4722 fname = (fname == NULL ? path : fname + 1);
4723 ret = fnmatch(param->fp_pattern, fname, 0);
4724 if ((ret == FNM_NOMATCH && !param->fp_exclude_pattern) ||
4725 (ret == 0 && param->fp_exclude_pattern))
4729 /* See if we can check the file type from the dirent. */
4730 if (param->fp_type != 0 && de != NULL && de->d_type != DT_UNKNOWN) {
4733 if (DTTOIF(de->d_type) == param->fp_type) {
4734 if (param->fp_exclude_type)
4737 if (!param->fp_exclude_type)
4745 * Request MDS for the stat info if some of these parameters need
4748 if (param->fp_obd_uuid || param->fp_mdt_uuid ||
4749 param->fp_check_uid || param->fp_check_gid ||
4750 param->fp_newerxy || param->fp_btime ||
4751 param->fp_atime || param->fp_mtime || param->fp_ctime ||
4752 param->fp_check_size || param->fp_check_blocks ||
4753 find_check_lmm_info(param) ||
4754 param->fp_check_mdt_count || param->fp_check_hash_type)
4757 if (param->fp_type != 0 && checked_type == 0)
4760 if (decision == 0) {
4761 if (d != -1 && (param->fp_check_mdt_count ||
4762 param->fp_check_hash_type || param->fp_check_foreign)) {
4763 param->fp_get_lmv = 1;
4764 ret = cb_get_dirstripe(path, &d, param);
4767 * XXX this works to decide for foreign
4770 if (errno == ENODATA &&
4771 param->fp_check_foreign) {
4772 if (param->fp_exclude_foreign)
4780 param->fp_lmd->lmd_lmm.lmm_magic = 0;
4781 ret = get_lmd_info_fd(path, p, d, param->fp_lmd,
4782 param->fp_lum_size, GET_LMD_INFO);
4783 if (ret == 0 && param->fp_lmd->lmd_lmm.lmm_magic == 0 &&
4784 find_check_lmm_info(param)) {
4785 struct lov_user_md *lmm = ¶m->fp_lmd->lmd_lmm;
4788 * We need to "fake" the "use the default" values
4789 * since the lmm struct is zeroed out at this point.
4791 lmm->lmm_magic = LOV_USER_MAGIC_V1;
4792 lmm->lmm_pattern = LOV_PATTERN_DEFAULT;
4794 ostid_set_seq(&lmm->lmm_oi,
4795 FID_SEQ_LOV_DEFAULT);
4796 lmm->lmm_stripe_size = 0;
4797 lmm->lmm_stripe_count = 0;
4798 lmm->lmm_stripe_offset = -1;
4800 if (ret == 0 && param->fp_mdt_uuid != NULL) {
4802 ret = llapi_file_fget_mdtidx(d,
4803 ¶m->fp_file_mdt_index);
4804 } else if (S_ISREG(lmd->lmd_stx.stx_mode)) {
4806 * FIXME: we could get the MDT index from the
4807 * file's FID in lmd->lmd_lmm.lmm_oi without
4808 * opening the file, once we are sure that
4809 * LFSCK2 (2.6) has fixed up pre-2.0 LOV EAs.
4810 * That would still be an ioctl() to map the
4811 * FID to the MDT, but not an open RPC.
4813 fd = open(path, O_RDONLY);
4815 ret = llapi_file_fget_mdtidx(fd,
4816 ¶m->fp_file_mdt_index);
4822 * For a special file, we assume it resides on
4823 * the same MDT as the parent directory.
4825 ret = llapi_file_fget_mdtidx(p,
4826 ¶m->fp_file_mdt_index);
4837 stripe_count = find_get_stripe_count(param);
4841 if (param->fp_type && !checked_type) {
4842 if ((lmd->lmd_stx.stx_mode & S_IFMT) == param->fp_type) {
4843 if (param->fp_exclude_type)
4846 if (!param->fp_exclude_type)
4852 if (param->fp_obd_uuid || param->fp_mdt_uuid) {
4853 if (lustre_fs && param->fp_got_uuids &&
4854 param->fp_dev != makedev(lmd->lmd_stx.stx_dev_major,
4855 lmd->lmd_stx.stx_dev_minor)) {
4856 /* A lustre/lustre mount point is crossed. */
4857 param->fp_got_uuids = 0;
4858 param->fp_obds_printed = 0;
4859 param->fp_mdt_index = OBD_NOT_FOUND;
4860 param->fp_obd_index = OBD_NOT_FOUND;
4863 if (lustre_fs && !param->fp_got_uuids) {
4864 ret = setup_target_indexes((d != -1) ? d : p, path,
4869 param->fp_dev = makedev(lmd->lmd_stx.stx_dev_major,
4870 lmd->lmd_stx.stx_dev_minor);
4871 } else if (!lustre_fs && param->fp_got_uuids) {
4872 /* A lustre/non-lustre mount point is crossed. */
4873 param->fp_got_uuids = 0;
4874 param->fp_mdt_index = OBD_NOT_FOUND;
4875 param->fp_obd_index = OBD_NOT_FOUND;
4879 if (param->fp_check_foreign) {
4880 decision = find_check_foreign(param);
4885 if (param->fp_check_stripe_size) {
4886 decision = find_check_stripe_size(param);
4891 if (param->fp_check_ext_size) {
4892 decision = find_check_ext_size(param);
4897 if (param->fp_check_stripe_count) {
4898 decision = find_value_cmp(stripe_count, param->fp_stripe_count,
4899 param->fp_stripe_count_sign,
4900 param->fp_exclude_stripe_count, 1, 0);
4905 if (param->fp_check_mdt_count) {
4906 if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
4911 decision = find_value_cmp(
4912 param->fp_lmv_md->lum_stripe_count,
4913 param->fp_mdt_count,
4914 param->fp_mdt_count_sign,
4915 param->fp_exclude_mdt_count, 1, 0);
4920 if (param->fp_check_layout) {
4921 decision = find_check_layout(param);
4926 if (param->fp_check_hash_type) {
4929 if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
4934 found = param->fp_lmv_md->lum_hash_type & param->fp_hash_type;
4935 if ((found && param->fp_exclude_hash_type) ||
4936 (!found && !param->fp_exclude_hash_type)) {
4942 /* If an OBD UUID is specified but none matches, skip this file. */
4943 if ((param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND) ||
4944 (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND))
4948 * If an OST or MDT UUID is given, and some OST matches,
4951 if (param->fp_obd_index != OBD_NOT_FOUND ||
4952 param->fp_mdt_index != OBD_NOT_FOUND) {
4953 if (param->fp_obd_uuid) {
4954 if (check_obd_match(param)) {
4956 * If no mdtuuid is given, we are done.
4957 * Otherwise, fall through to the mdtuuid
4960 if (!param->fp_mdt_uuid)
4967 if (param->fp_mdt_uuid) {
4968 if (check_mdt_match(param))
4975 if (param->fp_check_uid) {
4976 if (lmd->lmd_stx.stx_uid == param->fp_uid) {
4977 if (param->fp_exclude_uid)
4980 if (!param->fp_exclude_uid)
4985 if (param->fp_check_gid) {
4986 if (lmd->lmd_stx.stx_gid == param->fp_gid) {
4987 if (param->fp_exclude_gid)
4990 if (!param->fp_exclude_gid)
4995 if (param->fp_check_projid) {
4999 fd = open(path, O_RDONLY);
5002 ret = fget_projid(fd, &projid);
5007 if (projid == param->fp_projid) {
5008 if (param->fp_exclude_projid)
5011 if (!param->fp_exclude_projid)
5016 if (param->fp_check_pool) {
5017 decision = find_check_pool(param);
5022 if (param->fp_check_comp_count || param->fp_check_comp_flags ||
5023 param->fp_check_comp_start || param->fp_check_comp_end) {
5024 decision = find_check_comp_options(param);
5029 if (param->fp_check_mirror_count || param->fp_check_mirror_state) {
5030 decision = find_check_mirror_options(param);
5035 /* Check the time on mds. */
5037 if (param->fp_atime || param->fp_mtime || param->fp_ctime) {
5040 for_mds = lustre_fs ?
5041 (S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) : 0;
5042 decision = find_time_check(param, for_mds);
5047 if (param->fp_btime) {
5048 if (!(lmd->lmd_stx.stx_mask & STATX_BTIME)) {
5053 decision = find_value_cmp(lmd->lmd_stx.stx_btime.tv_sec,
5054 param->fp_btime, param->fp_bsign,
5055 param->fp_exclude_btime,
5056 param->fp_time_margin, 0);
5061 if (param->fp_newerxy) {
5064 for_mds = lustre_fs ?
5065 (S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) : 0;
5066 decision = find_newerxy_check(param, for_mds, true);
5075 flags = param->fp_lmd->lmd_flags;
5076 if (param->fp_check_size &&
5077 ((S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) ||
5078 S_ISDIR(lmd->lmd_stx.stx_mode)) &&
5079 !(flags & OBD_MD_FLSIZE ||
5080 (param->fp_lazy && flags & OBD_MD_FLLAZYSIZE)))
5083 if (param->fp_check_blocks &&
5084 ((S_ISREG(lmd->lmd_stx.stx_mode) && stripe_count) ||
5085 S_ISDIR(lmd->lmd_stx.stx_mode)) &&
5086 !(flags & OBD_MD_FLBLOCKS ||
5087 (param->fp_lazy && flags & OBD_MD_FLLAZYBLOCKS)))
5091 * If file still fits the request, ask ost for updated info.
5092 * The regular stat is almost of the same speed as some new
5093 * 'glimpse-size-ioctl'.
5099 * For regular files with the stripe the decision may have not
5100 * been taken yet if *time or size is to be checked.
5102 if (param->fp_obd_index != OBD_NOT_FOUND)
5103 print_failed_tgt(param, path, LL_STATFS_LOV);
5105 if (param->fp_mdt_index != OBD_NOT_FOUND)
5106 print_failed_tgt(param, path, LL_STATFS_LMV);
5109 ret = fstat_f(d, &st);
5110 else if (de != NULL)
5111 ret = fstatat_f(p, de->d_name, &st,
5112 AT_SYMLINK_NOFOLLOW);
5114 ret = lstat_f(path, &st);
5117 if (errno == ENOENT) {
5118 llapi_error(LLAPI_MSG_ERROR, -ENOENT,
5119 "warning: %s: %s does not exist",
5124 llapi_error(LLAPI_MSG_ERROR, ret,
5125 "%s: stat on %s failed",
5131 convert_lmd_statx(param->fp_lmd, &st, true);
5132 /* Check the time on osc. */
5133 decision = find_time_check(param, 0);
5137 if (param->fp_newerxy) {
5138 decision = find_newerxy_check(param, 0, false);
5148 if (param->fp_check_size) {
5149 decision = find_value_cmp(lmd->lmd_stx.stx_size,
5151 param->fp_size_sign,
5152 param->fp_exclude_size,
5153 param->fp_size_units, 0);
5158 if (param->fp_check_blocks) { /* convert st_blocks to bytes */
5159 decision = find_value_cmp(lmd->lmd_stx.stx_blocks * 512,
5161 param->fp_blocks_sign,
5162 param->fp_exclude_blocks,
5163 param->fp_blocks_units, 0);
5169 llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
5170 if (param->fp_zero_end)
5171 llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
5173 llapi_printf(LLAPI_MSG_NORMAL, "\n");
5177 /* Do not get down anymore? */
5178 if (param->fp_depth == param->fp_max_depth) {
5189 static int cb_migrate_mdt_init(char *path, int p, int *dp,
5190 void *param_data, struct dirent64 *de)
5192 struct find_param *param = (struct find_param *)param_data;
5193 struct lmv_user_md *lmu = param->fp_lmv_md;
5195 char raw[MAX_IOC_BUFLEN] = {'\0'};
5197 struct obd_ioctl_data data = { 0 };
5203 if (p == -1 && dp == NULL)
5209 if (dp != NULL && *dp != -1)
5213 tmp_p = open_parent(path);
5217 llapi_error(LLAPI_MSG_ERROR, ret,
5218 "can not open %s", path);
5223 path_copy = strdup(path);
5224 filename = basename(path_copy);
5226 data.ioc_inlbuf1 = (char *)filename;
5227 data.ioc_inllen1 = strlen(filename) + 1;
5228 data.ioc_inlbuf2 = (char *)lmu;
5229 data.ioc_inllen2 = lmv_user_md_size(lmu->lum_stripe_count,
5231 ret = llapi_ioctl_pack(&data, &rawbuf, sizeof(raw));
5233 llapi_error(LLAPI_MSG_ERROR, ret,
5234 "%s: error packing ioctl data", __func__);
5239 ret = ioctl(tmp_p, LL_IOC_MIGRATE, rawbuf);
5241 if (errno == EBUSY && !retry) {
5243 * because migrate may not be able to lock all involved
5244 * objects in order, for some of them it try lock, while
5245 * there may be conflicting COS locks and cause migrate
5246 * fail with EBUSY, hope a sync() could cause
5247 * transaction commit and release these COS locks.
5252 } else if (errno == EALREADY) {
5253 if (param->fp_verbose & VERBOSE_DETAIL)
5254 llapi_printf(LLAPI_MSG_NORMAL,
5255 "%s migrated to MDT%d already\n",
5256 path, lmu->lum_stripe_offset);
5260 llapi_error(LLAPI_MSG_ERROR, ret, "%s migrate failed",
5264 } else if (param->fp_verbose & VERBOSE_DETAIL) {
5265 llapi_printf(LLAPI_MSG_NORMAL,
5266 "migrate %s to MDT%d stripe count %d\n",
5267 path, lmu->lum_stripe_offset,
5268 lmu->lum_stripe_count);
5274 * If the directory is being migration, we need
5275 * close the directory after migration,
5276 * so the old directory cache will be cleanup
5277 * on the client side, and re-open to get the
5278 * new directory handle
5280 *dp = open(path, O_RDONLY|O_NDELAY|O_DIRECTORY);
5283 llapi_error(LLAPI_MSG_ERROR, ret,
5284 "%s: Failed to open '%s'", __func__, path);
5296 /* dir migration finished, shrink its stripes */
5297 static int cb_migrate_mdt_fini(char *path, int p, int *dp, void *data,
5298 struct dirent64 *de)
5300 struct find_param *param = data;
5301 struct lmv_user_md *lmu = param->fp_lmv_md;
5302 int lmulen = lmv_user_md_size(lmu->lum_stripe_count, lmu->lum_magic);
5305 if (de && de->d_type != DT_DIR)
5310 * close it before setxattr because the latter may destroy the
5311 * original object, and cause close fail.
5319 ret = setxattr(path, XATTR_NAME_LMV, lmu, lmulen, 0);
5320 if (ret == -EALREADY)
5323 cb_common_fini(path, p, dp, data, de);
5327 int llapi_migrate_mdt(char *path, struct find_param *param)
5329 return param_callback(path, cb_migrate_mdt_init, cb_migrate_mdt_fini,
5333 int llapi_mv(char *path, struct find_param *param)
5335 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)
5336 static bool printed;
5339 llapi_error(LLAPI_MSG_ERROR, -ESTALE,
5340 "%s() is deprecated, use llapi_migrate_mdt() instead",
5345 return llapi_migrate_mdt(path, param);
5348 int llapi_find(char *path, struct find_param *param)
5350 return param_callback(path, cb_find_init, cb_common_fini, param);
5354 * Get MDT number that the file/directory inode referenced
5355 * by the open fd resides on.
5356 * Return 0 and mdtidx on success, or -ve errno.
5358 int llapi_file_fget_mdtidx(int fd, int *mdtidx)
5360 if (ioctl(fd, LL_IOC_GET_MDTIDX, mdtidx) < 0)
5365 static int cb_get_mdt_index(char *path, int p, int *dp, void *data,
5366 struct dirent64 *de)
5368 struct find_param *param = (struct find_param *)data;
5369 int d = dp == NULL ? -1 : *dp;
5373 if (p == -1 && d == -1)
5377 ret = llapi_file_fget_mdtidx(d, &mdtidx);
5378 } else /* if (p != -1) */ {
5381 fd = open(path, O_RDONLY | O_NOCTTY);
5383 ret = llapi_file_fget_mdtidx(fd, &mdtidx);
5391 if (ret == -ENODATA) {
5392 if (!param->fp_obd_uuid)
5393 llapi_printf(LLAPI_MSG_NORMAL,
5394 "'%s' has no stripe info\n", path);
5396 } else if (ret == -ENOENT) {
5397 llapi_error(LLAPI_MSG_WARN, ret,
5398 "warning: %s: '%s' does not exist",
5401 } else if (ret == -ENOTTY) {
5402 llapi_error(LLAPI_MSG_ERROR, ret,
5403 "%s: '%s' not on a Lustre fs",
5406 llapi_error(LLAPI_MSG_ERROR, ret,
5407 "error: %s: '%s' failed get_mdtidx",
5413 if (param->fp_quiet || !(param->fp_verbose & VERBOSE_DETAIL))
5414 llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
5416 llapi_printf(LLAPI_MSG_NORMAL, "%s\nmdt_index:\t%d\n",
5420 /* Do not go down anymore? */
5421 if (param->fp_depth == param->fp_max_depth)
5429 static int cb_getstripe(char *path, int p, int *dp, void *data,
5430 struct dirent64 *de)
5432 struct find_param *param = (struct find_param *)data;
5433 int d = dp == NULL ? -1 : *dp;
5436 if (p == -1 && d == -1)
5439 if (param->fp_obd_uuid) {
5440 param->fp_quiet = 1;
5441 ret = setup_obd_uuid(d != -1 ? d : p, path, param);
5446 if (d != -1 && (param->fp_get_lmv || param->fp_get_default_lmv))
5447 ret = cb_get_dirstripe(path, &d, param);
5449 (p != -1 && !param->fp_get_lmv && !param->fp_get_default_lmv))
5450 ret = get_lmd_info_fd(path, p, d, ¶m->fp_lmd->lmd_lmm,
5451 param->fp_lum_size, GET_LMD_STRIPE);
5452 else if (d == -1 && (param->fp_get_lmv || param->fp_get_default_lmv)) {
5453 /* in case of a dangling or valid faked symlink dir, opendir()
5454 * should have return either EINVAL or ENOENT, so let's try
5455 * to get LMV just in case, and by opening it as a file but
5456 * with O_NOFOLLOW ...
5458 int fd = open(path, O_RDONLY | O_NOFOLLOW);
5462 ret = cb_get_dirstripe(path, &fd, param);
5464 llapi_lov_dump_user_lmm(param, path, LDF_IS_DIR);
5471 if (errno == ENODATA && d != -1) {
5473 * We need to "fake" the "use the default" values
5474 * since the lmm struct is zeroed out at this point.
5475 * The magic needs to be set in order to satisfy
5476 * a check later on in the code path.
5477 * The object_seq needs to be set for the "(Default)"
5478 * prefix to be displayed.
5480 if (param->fp_get_default_lmv) {
5481 struct lmv_user_md *lum = param->fp_lmv_md;
5483 lum->lum_magic = LMV_USER_MAGIC;
5484 lum->lum_stripe_count = 0;
5485 lum->lum_stripe_offset = LMV_OFFSET_DEFAULT;
5487 } else if (param->fp_get_lmv) {
5488 struct lmv_user_md *lum = param->fp_lmv_md;
5491 ret = llapi_file_fget_mdtidx(d, &mdtidx);
5494 lum->lum_magic = LMV_MAGIC_V1;
5495 lum->lum_stripe_count = 0;
5496 lum->lum_stripe_offset = mdtidx;
5499 struct lov_user_md *lmm =
5500 ¶m->fp_lmd->lmd_lmm;
5502 lmm->lmm_magic = LOV_USER_MAGIC_V1;
5504 ostid_set_seq(&lmm->lmm_oi,
5505 FID_SEQ_LOV_DEFAULT);
5506 lmm->lmm_stripe_count = 0;
5507 lmm->lmm_stripe_size = 0;
5508 lmm->lmm_stripe_offset = -1;
5511 } else if (errno == ENODATA && p != -1) {
5512 if (!param->fp_obd_uuid && !param->fp_mdt_uuid)
5513 llapi_printf(LLAPI_MSG_NORMAL,
5514 "%s has no stripe info\n", path);
5516 } else if (errno == ENOENT) {
5517 llapi_error(LLAPI_MSG_WARN, -ENOENT,
5518 "warning: %s: %s does not exist",
5521 } else if (errno == ENOTTY) {
5523 llapi_error(LLAPI_MSG_ERROR, ret,
5524 "%s: '%s' not on a Lustre fs?",
5529 llapi_error(LLAPI_MSG_ERROR, ret,
5530 "error: %s: %s failed for %s",
5532 "LL_IOC_LOV_GETSTRIPE" :
5533 "IOC_MDC_GETFILESTRIPE", path);
5540 if (!(param->fp_verbose & VERBOSE_MDTINDEX))
5541 llapi_lov_dump_user_lmm(param, path, d != -1 ? LDF_IS_DIR : 0);
5544 /* Do not get down anymore? */
5545 if (param->fp_depth == param->fp_max_depth)
5553 int llapi_getstripe(char *path, struct find_param *param)
5555 return param_callback(path, (param->fp_verbose & VERBOSE_MDTINDEX) ?
5556 cb_get_mdt_index : cb_getstripe,
5557 cb_common_fini, param);
5560 int llapi_obd_fstatfs(int fd, __u32 type, __u32 index,
5561 struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
5563 char raw[MAX_IOC_BUFLEN] = {'\0'};
5565 struct obd_ioctl_data data = { 0 };
5568 data.ioc_inlbuf1 = (char *)&type;
5569 data.ioc_inllen1 = sizeof(__u32);
5570 data.ioc_inlbuf2 = (char *)&index;
5571 data.ioc_inllen2 = sizeof(__u32);
5572 data.ioc_pbuf1 = (char *)stat_buf;
5573 data.ioc_plen1 = sizeof(struct obd_statfs);
5574 data.ioc_pbuf2 = (char *)uuid_buf;
5575 data.ioc_plen2 = sizeof(struct obd_uuid);
5577 rc = llapi_ioctl_pack(&data, &rawbuf, sizeof(raw));
5579 llapi_error(LLAPI_MSG_ERROR, rc,
5580 "%s: error packing ioctl data", __func__);
5584 rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
5586 return rc < 0 ? -errno : 0;
5589 int llapi_obd_statfs(char *path, __u32 type, __u32 index,
5590 struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
5595 fd = open(path, O_RDONLY);
5598 llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
5601 * If we can't even open a file on the filesystem (e.g. with
5602 * -ESHUTDOWN), force caller to exit or it will loop forever.
5607 rc = llapi_obd_fstatfs(fd, type, index, stat_buf, uuid_buf);
5614 #define MAX_STRING_SIZE 128
5616 int llapi_ping(char *obd_type, char *obd_name)
5618 int flags = O_RDONLY;
5619 char buf[1] = { 0 };
5623 rc = cfs_get_param_paths(&path, "%s/%s/ping",
5624 obd_type, obd_name);
5628 fd = open(path.gl_pathv[0], flags);
5630 if (errno == EACCES && flags == O_RDONLY) {
5635 llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s",
5640 if (flags == O_RDONLY)
5641 rc = read(fd, buf, sizeof(buf));
5643 rc = write(fd, buf, sizeof(buf));
5651 cfs_free_param_data(&path);
5655 int llapi_target_iterate(int type_num, char **obd_type,
5656 void *args, llapi_cb_t cb)
5662 for (i = 0; i < type_num; i++) {
5665 rc = cfs_get_param_paths(¶m, "%s/*/uuid", obd_type[i]);
5669 for (j = 0; j < param.gl_pathc; j++) {
5670 char obd_uuid[UUID_MAX + 1];
5674 fp = fopen(param.gl_pathv[j], "r");
5677 llapi_error(LLAPI_MSG_ERROR, rc,
5678 "error: opening '%s'",
5683 if (fgets(obd_uuid, sizeof(obd_uuid), fp) == NULL) {
5685 llapi_error(LLAPI_MSG_ERROR, rc,
5686 "error: reading '%s'",
5691 /* Extract the obd_name from the sysfs path.
5692 * 'topsysfs'/fs/lustre/'obd_type'/'obd_name'.
5694 obd_name = strstr(param.gl_pathv[j], "/fs/lustre/");
5700 /* skip /fs/lustre/'obd_type'/ */
5701 obd_name += strlen(obd_type[i]) + 12;
5702 /* chop off after obd_name */
5703 ptr = strrchr(obd_name, '/');
5707 cb(obd_type[i], obd_name, obd_uuid, args);
5716 cfs_free_param_data(¶m);
5720 static void do_target_check(char *obd_type_name, char *obd_name,
5721 char *obd_uuid, void *args)
5725 rc = llapi_ping(obd_type_name, obd_name);
5727 llapi_printf(LLAPI_MSG_NORMAL, "%s inactive.\n", obd_name);
5729 llapi_error(LLAPI_MSG_ERROR, rc, "error: check '%s'", obd_name);
5731 llapi_printf(LLAPI_MSG_NORMAL, "%s active.\n", obd_name);
5734 int llapi_target_check(int type_num, char **obd_type, char *dir)
5736 return llapi_target_iterate(type_num, obd_type, NULL, do_target_check);
5739 #undef MAX_STRING_SIZE
5741 /* Is this a lustre fs? */
5742 int llapi_is_lustre_mnttype(const char *type)
5744 return strcmp(type, "lustre") == 0 || strcmp(type, "lustre_tgt") == 0;
5747 /* Is this a lustre client fs? */
5748 int llapi_is_lustre_mnt(struct mntent *mnt)
5750 return (llapi_is_lustre_mnttype(mnt->mnt_type) &&
5751 strstr(mnt->mnt_fsname, ":/") != NULL);
5754 int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
5756 char fsname[PATH_MAX + 1];
5760 rc = llapi_search_fsname(mnt, fsname);
5764 root = open(mnt, O_RDONLY | O_DIRECTORY);
5767 llapi_error(LLAPI_MSG_ERROR, rc, "cannot open '%s'", mnt);
5771 rc = ioctl(root, OBD_IOC_QUOTACTL, qctl);
5774 if (rc == -ENOENT && LUSTRE_Q_CMD_IS_POOL(qctl->qc_cmd))
5775 llapi_error(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO, rc,
5776 "Cannot find pool '%s'", qctl->qc_poolname);
5782 int llapi_get_connect_flags(const char *mnt, __u64 *flags)
5787 root = open(mnt, O_RDONLY | O_DIRECTORY);
5790 llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
5794 rc = ioctl(root, LL_IOC_GET_CONNECT_FLAGS, flags);
5797 llapi_error(LLAPI_MSG_ERROR, rc,
5798 "ioctl on %s for getting connect flags failed", mnt);
5805 * Get a 64-bit value representing the version of file data pointed by fd.
5807 * Each write or truncate, flushed on OST, will change this value. You can use
5808 * this value to verify if file data was modified. This only checks the file
5809 * data, not metadata.
5811 * \param flags 0: no flush pages, usually used it the process has already
5813 * LL_DV_RD_FLUSH: OSTs will take LCK_PR to flush dirty pages
5815 * LL_DV_WR_FLUSH: OSTs will take LCK_PW to flush all caching
5816 * pages from clients.
5818 * \retval 0 on success.
5819 * \retval -errno on error.
5821 int llapi_get_data_version(int fd, __u64 *data_version, __u64 flags)
5824 struct ioc_data_version idv;
5826 idv.idv_flags = (__u32)flags;
5828 rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
5832 *data_version = idv.idv_version;
5838 * Flush cached pages from all clients.
5840 * \param fd File descriptor
5844 int llapi_file_flush(int fd)
5848 return llapi_get_data_version(fd, &dv, LL_DV_WR_FLUSH);
5852 * Fetch layout version from OST objects. Layout version on OST objects are
5853 * only set when the file is a mirrored file AND after the file has been
5854 * written at least once.
5856 * It actually fetches the least layout version from the objects.
5858 int llapi_get_ost_layout_version(int fd, __u32 *layout_version)
5861 struct ioc_data_version idv = { 0 };
5863 rc = ioctl(fd, LL_IOC_DATA_VERSION, &idv);
5867 *layout_version = idv.idv_layout_version;
5873 * Create a file without any name and open it for read/write
5875 * - file is created as if it were a standard file in the given \a directory
5876 * - file does not appear in \a directory and mtime does not change because
5877 * the filename is handled specially by the Lustre MDS.
5878 * - file is destroyed at final close
5880 * \param[in] directory directory from which to inherit layout/MDT idx
5881 * \param[in] mdt_idx MDT index on which the file is created,
5882 * \a idx == -1 means no specific MDT is requested
5883 * \param[in] mode standard open(2) mode
5884 * \param[in] stripe_param stripe parameters. May be NULL.
5886 * \retval a file descriptor on success.
5887 * \retval -errno on error.
5889 int llapi_create_volatile_param(const char *directory, int mdt_idx,
5890 int open_flags, mode_t mode,
5891 const struct llapi_stripe_param *stripe_param)
5893 char file_path[PATH_MAX];
5894 int saved_errno = errno;
5896 unsigned int rnumber;
5902 rc = snprintf(file_path, sizeof(file_path),
5903 "%s/" LUSTRE_VOLATILE_HDR "::%.4X",
5904 directory, rnumber);
5906 rc = snprintf(file_path, sizeof(file_path),
5907 "%s/" LUSTRE_VOLATILE_HDR ":%.4X:%.4X",
5908 directory, mdt_idx, rnumber);
5910 if (rc < 0 || rc >= sizeof(file_path))
5911 return -ENAMETOOLONG;
5914 * Either open O_WRONLY or O_RDWR, creating RDONLY
5915 * is non-sensical here
5917 if ((open_flags & O_ACCMODE) == O_RDONLY)
5918 open_flags = O_RDWR | (open_flags & ~O_ACCMODE);
5920 open_flags |= O_CREAT | O_EXCL | O_NOFOLLOW;
5922 if (stripe_param != NULL) {
5923 fd = llapi_file_open_param(file_path, open_flags,
5924 mode, stripe_param);
5928 fd = open(file_path, open_flags, mode);
5932 } while (fd < 0 && rc == -EEXIST);
5935 llapi_error(LLAPI_MSG_ERROR, rc,
5936 "Cannot create volatile file '%s' in '%s'",
5937 file_path + strlen(directory) + 1 +
5938 LUSTRE_VOLATILE_HDR_LEN,
5944 * Unlink file in case this wasn't a Lustre filesystem and the magic
5945 * volatile filename wasn't handled as intended. The effect is the
5946 * same. If volatile open was supported then we expect unlink() to
5949 (void)unlink(file_path);
5952 * Since we are returning successfully we restore errno (and
5953 * mask out possible EEXIST from open() and ENOENT from unlink().
5955 errno = saved_errno;
5961 * Create a file without any name open it for read/write
5963 * - file is created as if it were a standard file in the given \a directory
5964 * - file does not appear in \a directory and mtime does not change because
5965 * the filename is handled specially by the Lustre MDS.
5966 * - file is removed at final close
5967 * - file modes are rw------- since it doesn't make sense to have a read-only
5968 * or write-only file that cannot be opened again.
5969 * - if user wants another mode it must use fchmod() on the open file, no
5970 * security problems arise because it cannot be opened by another process.
5972 * \param[in] directory directory from which to inherit layout/MDT idx
5973 * \param[in] idx MDT index on which the file is created,
5974 * \a idx == -1 means no specific MDT is requested
5975 * \param[in] open_flags standard open(2) flags
5977 * \retval a file descriptor on success.
5978 * \retval -errno on error.
5980 int llapi_create_volatile_idx(const char *directory, int mdt_idx,
5983 return llapi_create_volatile_param(directory, mdt_idx, open_flags,
5984 S_IRUSR | S_IWUSR, NULL);
5988 * Swap the layouts between 2 file descriptors
5989 * the 2 files must be open for writing
5990 * first fd received the ioctl, second fd is passed as arg
5991 * this is assymetric but avoid use of root path for ioctl
5993 int llapi_fswap_layouts_grouplock(int fd1, int fd2, __u64 dv1, __u64 dv2,
5994 int gid, __u64 flags)
5996 struct lustre_swap_layouts lsl;
6001 if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
6002 rc = fstat(fd1, &st1);
6006 rc = fstat(fd2, &st2);
6011 lsl.sl_flags = flags;
6015 rc = ioctl(fd1, LL_IOC_LOV_SWAP_LAYOUTS, &lsl);
6019 if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
6020 struct timeval tv1[2];
6021 struct timeval tv2[2];
6023 memset(tv1, 0, sizeof(tv1));
6024 memset(tv2, 0, sizeof(tv2));
6026 if (flags & SWAP_LAYOUTS_KEEP_ATIME) {
6027 tv1[0].tv_sec = st1.st_atime;
6028 tv2[0].tv_sec = st2.st_atime;
6030 tv1[0].tv_sec = st2.st_atime;
6031 tv2[0].tv_sec = st1.st_atime;
6034 if (flags & SWAP_LAYOUTS_KEEP_MTIME) {
6035 tv1[1].tv_sec = st1.st_mtime;
6036 tv2[1].tv_sec = st2.st_mtime;
6038 tv1[1].tv_sec = st2.st_mtime;
6039 tv2[1].tv_sec = st1.st_mtime;
6042 rc = futimes(fd1, tv1);
6046 rc = futimes(fd2, tv2);
6054 int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, __u64 flags)
6061 while (grp_id == 0);
6063 rc = llapi_fswap_layouts_grouplock(fd1, fd2, dv1, dv2, grp_id, flags);
6071 * Swap the layouts between 2 files
6072 * the 2 files are open in write
6074 int llapi_swap_layouts(const char *path1, const char *path2,
6075 __u64 dv1, __u64 dv2, __u64 flags)
6079 fd1 = open(path1, O_WRONLY | O_LOV_DELAY_CREATE);
6082 llapi_error(LLAPI_MSG_ERROR, rc,
6083 "error: cannot open '%s' for write", path1);
6087 fd2 = open(path2, O_WRONLY | O_LOV_DELAY_CREATE);
6090 llapi_error(LLAPI_MSG_ERROR, rc,
6091 "error: cannot open '%s' for write", path2);
6095 rc = llapi_fswap_layouts(fd1, fd2, dv1, dv2, flags);
6097 llapi_error(LLAPI_MSG_ERROR, rc,
6098 "error: cannot swap layout between '%s' and '%s'",
6111 * \param fd File to lock.
6112 * \param gid Group Identifier.
6114 * \retval 0 on success.
6115 * \retval -errno on failure.
6117 int llapi_group_lock(int fd, int gid)
6121 rc = ioctl(fd, LL_IOC_GROUP_LOCK, gid);
6124 llapi_error(LLAPI_MSG_ERROR, rc, "cannot get group lock");
6132 * \param fd File to unlock.
6133 * \param gid Group Identifier.
6135 * \retval 0 on success.
6136 * \retval -errno on failure.
6138 int llapi_group_unlock(int fd, int gid)
6142 rc = ioctl(fd, LL_IOC_GROUP_UNLOCK, gid);
6145 llapi_error(LLAPI_MSG_ERROR, rc, "cannot put group lock");