4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
29 * Copyright (c) 2012 Whamcloud, Inc.
32 * This file is part of Lustre, http://www.lustre.org/
33 * Lustre is a trademark of Sun Microsystems, Inc.
38 #endif /* HAVE_CONFIG_H */
44 #include <lustre_disk.h>
45 #include <lustre_ver.h>
47 #include <sys/utsname.h>
48 #include "mount_utils.h"
50 extern char *progname;
53 #define vprint(fmt, arg...) if (verbose > 0) printf(fmt, ##arg)
54 #define verrprint(fmt, arg...) if (verbose >= 0) fprintf(stderr, fmt, ##arg)
59 fprintf(stderr, "\n%s FATAL: ", progname);
62 int run_command(char *cmd, int cmdsz)
64 char log[] = "/tmp/run_command_logXXXXXX";
67 if ((cmdsz - strlen(cmd)) < 6) {
69 fprintf(stderr, "Command buffer overflow: %.*s...\n",
75 printf("cmd: %s\n", cmd);
77 if ((fd = mkstemp(log)) >= 0) {
85 /* Can't use popen because we need the rv of the command */
87 if (rc && (fd >= 0)) {
92 while (fgets(buf, sizeof(buf), fp) != NULL) {
103 int add_param(char *buf, char *key, char *val)
105 int end = sizeof(((struct lustre_disk_data *)0)->ldd_params);
106 int start = strlen(buf);
110 keylen = strlen(key);
111 if (start + 1 + keylen + strlen(val) >= end) {
112 fprintf(stderr, "%s: params are too long-\n%s %s%s\n",
113 progname, buf, key ? key : "", val);
117 sprintf(buf + start, " %s%s", key ? key : "", val);
121 int get_param(char *buf, char *key, char **val)
123 int i, key_len = strlen(key);
126 ptr = strstr(buf, key);
128 *val = strdup(ptr + key_len);
132 for (i = 0; i < strlen(*val); i++)
133 if (((*val)[i] == ' ') || ((*val)[i] == '\0'))
143 char *strscat(char *dst, char *src, int buflen)
146 if (strlen(dst) + strlen(src) >= buflen) {
147 fprintf(stderr, "string buffer overflow (max %d): '%s' + '%s'"
148 "\n", buflen, dst, src);
151 return strcat(dst, src);
154 char *strscpy(char *dst, char *src, int buflen)
157 return strscat(dst, src, buflen);
160 int check_mtab_entry(char *spec1, char *spec2, char *mtpt, char *type)
165 fp = setmntent(MOUNTED, "r");
169 while ((mnt = getmntent(fp)) != NULL) {
170 if ((strcmp(mnt->mnt_fsname, spec1) == 0 ||
171 strcmp(mnt->mnt_fsname, spec2) == 0) &&
172 (mtpt == NULL || strcmp(mnt->mnt_dir, mtpt) == 0) &&
173 (type == NULL || strcmp(mnt->mnt_type, type) == 0)) {
183 int update_mtab_entry(char *spec, char *mtpt, char *type, char *opts,
184 int flags, int freq, int pass)
190 mnt.mnt_fsname = spec;
193 mnt.mnt_opts = opts ? opts : "";
195 mnt.mnt_passno = pass;
197 fp = setmntent(MOUNTED, "a+");
199 fprintf(stderr, "%s: setmntent(%s): %s:",
200 progname, MOUNTED, strerror (errno));
203 if ((addmntent(fp, &mnt)) == 1) {
204 fprintf(stderr, "%s: addmntent: %s:",
205 progname, strerror (errno));
214 /* Search for opt in mntlist, returning true if found.
216 static int in_mntlist(char *opt, char *mntlist)
218 char *ml, *mlp, *item, *ctx = NULL;
220 if (!(ml = strdup(mntlist))) {
221 fprintf(stderr, "%s: out of memory\n", progname);
225 while ((item = strtok_r(mlp, ",", &ctx))) {
226 if (!strcmp(opt, item))
231 return (item != NULL);
234 /* Issue a message on stderr for every item in wanted_mountopts that is not
235 * present in mountopts. The justwarn boolean toggles between error and
236 * warning message. Return an error count.
238 int check_mountfsoptions(char *mountopts, char *wanted_mountopts,
241 char *ml, *mlp, *item, *ctx = NULL;
244 if (!(ml = strdup(wanted_mountopts))) {
245 fprintf(stderr, "%s: out of memory\n", progname);
249 while ((item = strtok_r(mlp, ",", &ctx))) {
250 if (!in_mntlist(item, mountopts)) {
251 fprintf(stderr, "%s: %s mount option `%s' is missing\n",
252 progname, justwarn ? "Warning: default"
253 : "Error: mandatory", item);
262 /* Trim embedded white space, leading and trailing commas from string s.
264 void trim_mountfsoptions(char *s)
270 memmove(p, p + 1, strlen(p + 1) + 1);
277 memmove(&s[0], &s[1], strlen(&s[1]) + 1);
279 p = s + strlen(s) - 1;
280 while (p >= s && *p == ',')
284 /* Setup a file in the first unused loop_device */
285 int loop_setup(struct mkfs_opts *mop)
291 /* Figure out the loop device names */
292 if (!access("/dev/loop0", F_OK | R_OK)) {
293 strcpy(loop_base, "/dev/loop\0");
294 } else if (!access("/dev/loop/0", F_OK | R_OK)) {
295 strcpy(loop_base, "/dev/loop/\0");
297 fprintf(stderr, "%s: can't access loop devices\n", progname);
301 /* Find unused loop device */
302 for (i = 0; i < MAX_LOOP_DEVICES; i++) {
304 int cmdsz = sizeof(cmd);
306 sprintf(l_device, "%s%d", loop_base, i);
307 if (access(l_device, F_OK | R_OK))
309 snprintf(cmd, cmdsz, "losetup %s > /dev/null 2>&1", l_device);
312 /* losetup gets 1 (ret=256) for non-set-up device */
314 /* Set up a loopback device to our file */
315 snprintf(cmd, cmdsz, "losetup %s %s", l_device,
317 ret = run_command(cmd, cmdsz);
319 /* someone else picked up this loop device
323 fprintf(stderr, "%s: error %d on losetup: %s\n",
324 progname, ret, strerror(ret));
327 strscpy(mop->mo_loopdev, l_device,
328 sizeof(mop->mo_loopdev));
333 fprintf(stderr, "%s: out of loop devices!\n", progname);
337 int loop_cleanup(struct mkfs_opts *mop)
341 if ((mop->mo_flags & MO_IS_LOOP) && *mop->mo_loopdev) {
342 sprintf(cmd, "losetup -d %s", mop->mo_loopdev);
343 ret = run_command(cmd, sizeof(cmd));
348 int loop_format(struct mkfs_opts *mop)
352 if (mop->mo_device_sz == 0) {
354 fprintf(stderr, "loop device requires a --device-size= "
359 fd = creat(mop->mo_device, S_IRUSR|S_IWUSR);
362 fprintf(stderr, "%s: Unable to create backing store: %s\n",
363 progname, strerror(errno));
367 if (ftruncate(fd, mop->mo_device_sz * 1024) != 0) {
370 fprintf(stderr, "%s: Unable to truncate backing store: %s\n",
371 progname, strerror(errno));
379 /* Write the server config files */
380 int osd_write_ldd(struct mkfs_opts *mop)
382 struct lustre_disk_data *ldd = &mop->mo_ldd;
385 switch (ldd->ldd_mount_type) {
387 case LDD_MT_LDISKFS2:
388 ret = ldiskfs_write_ldd(mop);
392 ret = zfs_write_ldd(mop);
394 #endif /* HAVE_ZFS_OSD */
397 fprintf(stderr, "unknown fs type %d '%s'\n",
398 ldd->ldd_mount_type, MT_STR(ldd));
406 /* Read the server config files */
407 int osd_read_ldd(char *dev, struct lustre_disk_data *ldd)
411 switch (ldd->ldd_mount_type) {
413 case LDD_MT_LDISKFS2:
414 ret = ldiskfs_read_ldd(dev, ldd);
418 ret = zfs_read_ldd(dev, ldd);
420 #endif /* HAVE_ZFS_OSD */
423 fprintf(stderr, "unknown fs type %d '%s'\n",
424 ldd->ldd_mount_type, MT_STR(ldd));
432 /* Was this device formatted for Lustre */
433 int osd_is_lustre(char *dev, unsigned *mount_type)
435 vprint("checking for existing Lustre data: ");
437 if (ldiskfs_is_lustre(dev, mount_type)) {
442 if (zfs_is_lustre(dev, mount_type)) {
446 #endif /* HAVE_ZFS_OSD */
448 vprint("not found\n");
452 /* Build fs according to type */
453 int osd_make_lustre(struct mkfs_opts *mop)
455 struct lustre_disk_data *ldd = &mop->mo_ldd;
458 switch (ldd->ldd_mount_type) {
460 case LDD_MT_LDISKFS2:
461 ret = ldiskfs_make_lustre(mop);
465 ret = zfs_make_lustre(mop);
467 #endif /* HAVE_ZFS_OSD */
470 fprintf(stderr, "unknown fs type %d '%s'\n",
471 ldd->ldd_mount_type, MT_STR(ldd));
479 int osd_prepare_lustre(struct mkfs_opts *mop,
480 char *default_mountopts, int default_len,
481 char *always_mountopts, int always_len)
483 struct lustre_disk_data *ldd = &mop->mo_ldd;
486 switch (ldd->ldd_mount_type) {
488 case LDD_MT_LDISKFS2:
489 ret = ldiskfs_prepare_lustre(mop,
490 default_mountopts, default_len,
491 always_mountopts, always_len);
495 ret = zfs_prepare_lustre(mop,
496 default_mountopts, default_len,
497 always_mountopts, always_len);
499 #endif /* HAVE_ZFS_OSD */
502 fprintf(stderr, "unknown fs type %d '%s'\n",
503 ldd->ldd_mount_type, MT_STR(ldd));
511 int osd_tune_lustre(char *dev, struct mount_opts *mop)
513 struct lustre_disk_data *ldd = &mop->mo_ldd;
516 switch (ldd->ldd_mount_type) {
518 case LDD_MT_LDISKFS2:
519 ret = ldiskfs_tune_lustre(dev, mop);
523 ret = zfs_tune_lustre(dev, mop);
525 #endif /* HAVE_ZFS_OSD */
528 fprintf(stderr, "unknown fs type %d '%s'\n",
529 ldd->ldd_mount_type, MT_STR(ldd));
537 int osd_label_lustre(struct mount_opts *mop)
539 struct lustre_disk_data *ldd = &mop->mo_ldd;
542 switch (ldd->ldd_mount_type) {
544 case LDD_MT_LDISKFS2:
545 ret = ldiskfs_label_lustre(mop);
549 ret = zfs_label_lustre(mop);
551 #endif /* HAVE_ZFS_OSD */
554 fprintf(stderr, "unknown fs type %d '%s'\n",
555 ldd->ldd_mount_type, MT_STR(ldd));
567 ret = ldiskfs_init();
572 /* we want to be able to set up a ldiskfs-based filesystem w/o
573 * the ZFS modules installed, see ORI-425 */
576 #endif /* HAVE_ZFS_OSD */
586 #endif /* HAVE_ZFS_OSD */
589 __u64 get_device_size(char* device)
594 fd = open(device, O_RDONLY);
596 fprintf(stderr, "%s: cannot open %s: %s\n",
597 progname, device, strerror(errno));
602 /* size in bytes. bz5831 */
603 ret = ioctl(fd, BLKGETSIZE64, (void*)&size);
608 ret = ioctl(fd, BLKGETSIZE, (void*)&lsize);
609 size = (__u64)lsize * 512;
614 fprintf(stderr, "%s: size ioctl failed: %s\n",
615 progname, strerror(errno));
619 vprint("device size = "LPU64"MB\n", size >> 20);
620 /* return value in KB */
624 int file_create(char *path, int size)
629 ret = access(path, F_OK);
636 fd = creat(path, S_IRUSR|S_IWUSR);
639 fprintf(stderr, "%s: Unable to create backing store: %s\n",
640 progname, strerror(errno));
644 ret = ftruncate(fd, size * 1024);
648 fprintf(stderr, "%s: Unable to truncate backing store: %s\n",
649 progname, strerror(errno));