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[thirdparty/e2fsprogs.git] / misc / tune2fs.c
1 /*
2 * tune2fs.c - Change the file system parameters on an ext2 file system
3 *
4 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
5 * Laboratoire MASI, Institut Blaise Pascal
6 * Universite Pierre et Marie Curie (Paris VI)
7 *
8 * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
9 *
10 * %Begin-Header%
11 * This file may be redistributed under the terms of the GNU Public
12 * License.
13 * %End-Header%
14 */
15
16 /*
17 * History:
18 * 93/06/01 - Creation
19 * 93/10/31 - Added the -c option to change the maximal mount counts
20 * 93/12/14 - Added -l flag to list contents of superblock
21 * M.J.E. Mol (marcel@duteca.et.tudelft.nl)
22 * F.W. ten Wolde (franky@duteca.et.tudelft.nl)
23 * 93/12/29 - Added the -e option to change errors behavior
24 * 94/02/27 - Ported to use the ext2fs library
25 * 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de)
26 */
27
28 #define _XOPEN_SOURCE 600 /* for inclusion of strptime() */
29 #include "config.h"
30 #include <fcntl.h>
31 #include <grp.h>
32 #ifdef HAVE_GETOPT_H
33 #include <getopt.h>
34 #else
35 extern char *optarg;
36 extern int optind;
37 #endif
38 #include <pwd.h>
39 #include <stdio.h>
40 #ifdef HAVE_STDLIB_H
41 #include <stdlib.h>
42 #endif
43 #ifdef HAVE_STRINGS_H
44 #include <strings.h> /* for strcasecmp() */
45 #else
46 #define _BSD_SOURCE /* for inclusion of strcasecmp() via <string.h> */
47 #endif
48 #include <string.h>
49 #include <time.h>
50 #include <unistd.h>
51 #include <sys/types.h>
52 #include <libgen.h>
53 #include <limits.h>
54
55 #include "ext2fs/ext2_fs.h"
56 #include "ext2fs/ext2fs.h"
57 #include "et/com_err.h"
58 #include "uuid/uuid.h"
59 #include "e2p/e2p.h"
60 #include "jfs_user.h"
61 #include "util.h"
62 #include "blkid/blkid.h"
63 #include "quota/quotaio.h"
64
65 #include "../version.h"
66 #include "nls-enable.h"
67
68 #define QOPT_ENABLE (1)
69 #define QOPT_DISABLE (-1)
70
71 extern int ask_yn(const char *string, int def);
72
73 const char *program_name = "tune2fs";
74 char *device_name;
75 char *new_label, *new_last_mounted, *new_UUID;
76 char *io_options;
77 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
78 static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
79 static int I_flag;
80 static int clear_mmp;
81 static time_t last_check_time;
82 static int print_label;
83 static int max_mount_count, mount_count, mount_flags;
84 static unsigned long interval;
85 static blk64_t reserved_blocks;
86 static double reserved_ratio;
87 static unsigned long resgid, resuid;
88 static unsigned short errors;
89 static int open_flag;
90 static char *features_cmd;
91 static char *mntopts_cmd;
92 static int stride, stripe_width;
93 static int stride_set, stripe_width_set;
94 static char *extended_cmd;
95 static unsigned long new_inode_size;
96 static char *ext_mount_opts;
97 static int usrquota, grpquota;
98
99 int journal_size, journal_flags;
100 char *journal_device;
101 static blk64_t journal_location = ~0LL;
102
103 static struct list_head blk_move_list;
104
105 struct blk_move {
106 struct list_head list;
107 blk64_t old_loc;
108 blk64_t new_loc;
109 };
110
111
112 static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
113
114 #ifdef CONFIG_BUILD_FINDFS
115 void do_findfs(int argc, char **argv);
116 #endif
117
118 static void usage(void)
119 {
120 fprintf(stderr,
121 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
122 "[-g group]\n"
123 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
124 "\t[-m reserved_blocks_percent] "
125 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n"
126 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
127 "[-L volume_label]\n"
128 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
129 #ifdef CONFIG_QUOTA
130 "\t[-Q quota_options]\n"
131 #endif
132 "\t[-E extended-option[,...]] [-T last_check_time] "
133 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
134 exit(1);
135 }
136
137 static __u32 ok_features[3] = {
138 /* Compat */
139 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
140 EXT2_FEATURE_COMPAT_DIR_INDEX,
141 /* Incompat */
142 EXT2_FEATURE_INCOMPAT_FILETYPE |
143 EXT3_FEATURE_INCOMPAT_EXTENTS |
144 EXT4_FEATURE_INCOMPAT_FLEX_BG |
145 EXT4_FEATURE_INCOMPAT_MMP,
146 /* R/O compat */
147 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
148 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
149 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
150 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
151 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
152 #ifdef CONFIG_QUOTA
153 EXT4_FEATURE_RO_COMPAT_QUOTA |
154 #endif
155 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
156 };
157
158 static __u32 clear_ok_features[3] = {
159 /* Compat */
160 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
161 EXT2_FEATURE_COMPAT_RESIZE_INODE |
162 EXT2_FEATURE_COMPAT_DIR_INDEX,
163 /* Incompat */
164 EXT2_FEATURE_INCOMPAT_FILETYPE |
165 EXT4_FEATURE_INCOMPAT_FLEX_BG |
166 EXT4_FEATURE_INCOMPAT_MMP,
167 /* R/O compat */
168 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
169 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
170 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
171 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
172 #ifdef CONFIG_QUOTA
173 EXT4_FEATURE_RO_COMPAT_QUOTA |
174 #endif
175 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
176 };
177
178 /**
179 * Try to get journal super block if any
180 */
181 static int get_journal_sb(ext2_filsys jfs, char buf[SUPERBLOCK_SIZE])
182 {
183 int retval;
184 int start;
185 journal_superblock_t *jsb;
186
187 if (!(jfs->super->s_feature_incompat &
188 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
189 return EXT2_ET_UNSUPP_FEATURE;
190 }
191
192 /* Get the journal superblock */
193 if ((retval = io_channel_read_blk64(jfs->io,
194 ext2fs_journal_sb_start(jfs->blocksize), -SUPERBLOCK_SIZE, buf))) {
195 com_err(program_name, retval, "%s",
196 _("while reading journal superblock"));
197 return retval;
198 }
199
200 jsb = (journal_superblock_t *) buf;
201 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
202 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
203 fputs(_("Journal superblock not found!\n"), stderr);
204 return EXT2_ET_BAD_MAGIC;
205 }
206
207 return 0;
208 }
209
210 static __u8 *journal_user(__u8 uuid[UUID_SIZE], __u8 s_users[JFS_USERS_SIZE],
211 int nr_users)
212 {
213 int i;
214 for (i = 0; i < nr_users; i++) {
215 if (memcmp(uuid, &s_users[i * UUID_SIZE], UUID_SIZE) == 0)
216 return &s_users[i * UUID_SIZE];
217 }
218
219 return NULL;
220 }
221
222 /*
223 * Remove an external journal from the filesystem
224 */
225 static int remove_journal_device(ext2_filsys fs)
226 {
227 char *journal_path;
228 ext2_filsys jfs;
229 char buf[SUPERBLOCK_SIZE];
230 journal_superblock_t *jsb;
231 int i, nr_users;
232 errcode_t retval;
233 int commit_remove_journal = 0;
234 io_manager io_ptr;
235
236 if (f_flag)
237 commit_remove_journal = 1; /* force removal even if error */
238
239 uuid_unparse(fs->super->s_journal_uuid, buf);
240 journal_path = blkid_get_devname(NULL, "UUID", buf);
241
242 if (!journal_path) {
243 journal_path =
244 ext2fs_find_block_device(fs->super->s_journal_dev);
245 if (!journal_path)
246 goto no_valid_journal;
247 }
248
249 #ifdef CONFIG_TESTIO_DEBUG
250 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
251 io_ptr = test_io_manager;
252 test_io_backing_manager = unix_io_manager;
253 } else
254 #endif
255 io_ptr = unix_io_manager;
256 retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
257 EXT2_FLAG_JOURNAL_DEV_OK, 0,
258 fs->blocksize, io_ptr, &jfs);
259 if (retval) {
260 com_err(program_name, retval, "%s",
261 _("while trying to open external journal"));
262 goto no_valid_journal;
263 }
264
265 if ((retval = get_journal_sb(jfs, buf))) {
266 if (retval == EXT2_ET_UNSUPP_FEATURE)
267 fprintf(stderr, _("%s is not a journal device.\n"),
268 journal_path);
269 goto no_valid_journal;
270 }
271
272 jsb = (journal_superblock_t *) buf;
273 /* Find the filesystem UUID */
274 nr_users = ntohl(jsb->s_nr_users);
275
276 if (!journal_user(fs->super->s_uuid, jsb->s_users, nr_users)) {
277 fputs(_("Filesystem's UUID not found on journal device.\n"),
278 stderr);
279 commit_remove_journal = 1;
280 goto no_valid_journal;
281 }
282 nr_users--;
283 for (i = 0; i < nr_users; i++)
284 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
285 jsb->s_nr_users = htonl(nr_users);
286
287 /* Write back the journal superblock */
288 retval = io_channel_write_blk64(jfs->io,
289 ext2fs_journal_sb_start(fs->blocksize),
290 -SUPERBLOCK_SIZE, buf);
291 if (retval) {
292 com_err(program_name, retval,
293 "while writing journal superblock.");
294 goto no_valid_journal;
295 }
296
297 commit_remove_journal = 1;
298
299 no_valid_journal:
300 if (commit_remove_journal == 0) {
301 fputs(_("Cannot locate journal device. It was NOT removed\n"
302 "Use -f option to remove missing journal device.\n"),
303 stderr);
304 return 1;
305 }
306 fs->super->s_journal_dev = 0;
307 uuid_clear(fs->super->s_journal_uuid);
308 ext2fs_mark_super_dirty(fs);
309 fputs(_("Journal removed\n"), stdout);
310 free(journal_path);
311
312 return 0;
313 }
314
315 /* Helper function for remove_journal_inode */
316 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
317 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
318 blk64_t ref_block EXT2FS_ATTR((unused)),
319 int ref_offset EXT2FS_ATTR((unused)),
320 void *private EXT2FS_ATTR((unused)))
321 {
322 blk64_t block;
323 int group;
324
325 block = *blocknr;
326 ext2fs_unmark_block_bitmap2(fs->block_map, block);
327 group = ext2fs_group_of_blk2(fs, block);
328 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
329 ext2fs_group_desc_csum_set(fs, group);
330 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
331 return 0;
332 }
333
334 /*
335 * Remove the journal inode from the filesystem
336 */
337 static errcode_t remove_journal_inode(ext2_filsys fs)
338 {
339 struct ext2_inode inode;
340 errcode_t retval;
341 ino_t ino = fs->super->s_journal_inum;
342
343 retval = ext2fs_read_inode(fs, ino, &inode);
344 if (retval) {
345 com_err(program_name, retval, "%s",
346 _("while reading journal inode"));
347 return retval;
348 }
349 if (ino == EXT2_JOURNAL_INO) {
350 retval = ext2fs_read_bitmaps(fs);
351 if (retval) {
352 com_err(program_name, retval, "%s",
353 _("while reading bitmaps"));
354 return retval;
355 }
356 retval = ext2fs_block_iterate3(fs, ino,
357 BLOCK_FLAG_READ_ONLY, NULL,
358 release_blocks_proc, NULL);
359 if (retval) {
360 com_err(program_name, retval, "%s",
361 _("while clearing journal inode"));
362 return retval;
363 }
364 memset(&inode, 0, sizeof(inode));
365 ext2fs_mark_bb_dirty(fs);
366 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
367 } else
368 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
369 retval = ext2fs_write_inode(fs, ino, &inode);
370 if (retval) {
371 com_err(program_name, retval, "%s",
372 _("while writing journal inode"));
373 return retval;
374 }
375 fs->super->s_journal_inum = 0;
376 ext2fs_mark_super_dirty(fs);
377
378 return 0;
379 }
380
381 /*
382 * Update the default mount options
383 */
384 static int update_mntopts(ext2_filsys fs, char *mntopts)
385 {
386 struct ext2_super_block *sb = fs->super;
387
388 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
389 fprintf(stderr, _("Invalid mount option set: %s\n"),
390 mntopts);
391 return 1;
392 }
393 ext2fs_mark_super_dirty(fs);
394
395 return 0;
396 }
397
398 static int check_fsck_needed(ext2_filsys fs)
399 {
400 if (fs->super->s_state & EXT2_VALID_FS)
401 return 0;
402 printf("\n%s\n", _(please_fsck));
403 if (mount_flags & EXT2_MF_READONLY)
404 printf("%s", _("(and reboot afterwards!)\n"));
405 return 1;
406 }
407
408 static void request_fsck_afterwards(ext2_filsys fs)
409 {
410 static int requested = 0;
411
412 if (requested++)
413 return;
414 fs->super->s_state &= ~EXT2_VALID_FS;
415 printf("\n%s\n", _(please_fsck));
416 if (mount_flags & EXT2_MF_READONLY)
417 printf("%s", _("(and reboot afterwards!)\n"));
418 }
419
420 /*
421 * Update the feature set as provided by the user.
422 */
423 static int update_feature_set(ext2_filsys fs, char *features)
424 {
425 struct ext2_super_block *sb = fs->super;
426 struct ext2_group_desc *gd;
427 __u32 old_features[3];
428 dgrp_t i;
429 int type_err;
430 unsigned int mask_err;
431
432 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
433 ((&sb->s_feature_compat)[(type)] & (mask)))
434 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
435 !((&sb->s_feature_compat)[(type)] & (mask)))
436 #define FEATURE_CHANGED(type, mask) ((mask) & \
437 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
438
439 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
440 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
441 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
442
443 if (e2p_edit_feature2(features, &sb->s_feature_compat,
444 ok_features, clear_ok_features,
445 &type_err, &mask_err)) {
446 if (!mask_err)
447 fprintf(stderr,
448 _("Invalid filesystem option set: %s\n"),
449 features);
450 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
451 fprintf(stderr, _("Clearing filesystem feature '%s' "
452 "not supported.\n"),
453 e2p_feature2string(type_err &
454 E2P_FEATURE_TYPE_MASK,
455 mask_err));
456 else
457 fprintf(stderr, _("Setting filesystem feature '%s' "
458 "not supported.\n"),
459 e2p_feature2string(type_err, mask_err));
460 return 1;
461 }
462
463 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
464 if ((mount_flags & EXT2_MF_MOUNTED) &&
465 !(mount_flags & EXT2_MF_READONLY)) {
466 fputs(_("The has_journal feature may only be "
467 "cleared when the filesystem is\n"
468 "unmounted or mounted "
469 "read-only.\n"), stderr);
470 return 1;
471 }
472 if ((sb->s_feature_incompat &
473 EXT3_FEATURE_INCOMPAT_RECOVER) &&
474 f_flag < 2) {
475 fputs(_("The needs_recovery flag is set. "
476 "Please run e2fsck before clearing\n"
477 "the has_journal flag.\n"), stderr);
478 return 1;
479 }
480 if (sb->s_journal_inum) {
481 if (remove_journal_inode(fs))
482 return 1;
483 }
484 if (sb->s_journal_dev) {
485 if (remove_journal_device(fs))
486 return 1;
487 }
488 }
489
490 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
491 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
492 if (sb->s_feature_incompat &
493 EXT2_FEATURE_INCOMPAT_META_BG) {
494 fputs(_("Setting filesystem feature 'sparse_super' "
495 "not supported\nfor filesystems with "
496 "the meta_bg feature enabled.\n"),
497 stderr);
498 return 1;
499 }
500 }
501
502 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
503 int error;
504
505 if ((mount_flags & EXT2_MF_MOUNTED) ||
506 (mount_flags & EXT2_MF_READONLY)) {
507 fputs(_("The multiple mount protection feature can't\n"
508 "be set if the filesystem is mounted or\n"
509 "read-only.\n"), stderr);
510 return 1;
511 }
512
513 error = ext2fs_mmp_init(fs);
514 if (error) {
515 fputs(_("\nError while enabling multiple mount "
516 "protection feature."), stderr);
517 return 1;
518 }
519
520 /*
521 * We want to update group desc with the new free blocks count
522 */
523 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
524
525 printf(_("Multiple mount protection has been enabled "
526 "with update interval %ds.\n"),
527 sb->s_mmp_update_interval);
528 }
529
530 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
531 int error;
532
533 if (mount_flags & EXT2_MF_READONLY) {
534 fputs(_("The multiple mount protection feature cannot\n"
535 "be disabled if the filesystem is readonly.\n"),
536 stderr);
537 return 1;
538 }
539
540 error = ext2fs_read_bitmaps(fs);
541 if (error) {
542 fputs(_("Error while reading bitmaps\n"), stderr);
543 return 1;
544 }
545
546 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
547 if (error) {
548 struct mmp_struct *mmp_cmp = fs->mmp_cmp;
549
550 if (error == EXT2_ET_MMP_MAGIC_INVALID)
551 printf(_("Magic number in MMP block does not "
552 "match. expected: %x, actual: %x\n"),
553 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
554 else
555 com_err(program_name, error, "%s",
556 _("while reading MMP block."));
557 goto mmp_error;
558 }
559
560 /* We need to force out the group descriptors as well */
561 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
562 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1);
563 mmp_error:
564 sb->s_mmp_block = 0;
565 sb->s_mmp_update_interval = 0;
566 }
567
568 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
569 /*
570 * If adding a journal flag, let the create journal
571 * code below handle setting the flag and creating the
572 * journal. We supply a default size if necessary.
573 */
574 if (!journal_size)
575 journal_size = -1;
576 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
577 }
578
579 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
580 if (!sb->s_def_hash_version)
581 sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
582 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
583 uuid_generate((unsigned char *) sb->s_hash_seed);
584 }
585
586 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
587 if (ext2fs_check_desc(fs)) {
588 fputs(_("Clearing the flex_bg flag would "
589 "cause the the filesystem to be\n"
590 "inconsistent.\n"), stderr);
591 return 1;
592 }
593 }
594
595 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
596 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
597 if ((mount_flags & EXT2_MF_MOUNTED) &&
598 !(mount_flags & EXT2_MF_READONLY)) {
599 fputs(_("The huge_file feature may only be "
600 "cleared when the filesystem is\n"
601 "unmounted or mounted "
602 "read-only.\n"), stderr);
603 return 1;
604 }
605 }
606
607 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
608 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
609 for (i = 0; i < fs->group_desc_count; i++) {
610 gd = ext2fs_group_desc(fs, fs->group_desc, i);
611 gd->bg_itable_unused = 0;
612 gd->bg_flags = EXT2_BG_INODE_ZEROED;
613 ext2fs_group_desc_csum_set(fs, i);
614 }
615 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
616 }
617
618 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
619 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
620 for (i = 0; i < fs->group_desc_count; i++) {
621 gd = ext2fs_group_desc(fs, fs->group_desc, i);
622 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) {
623 /*
624 * XXX what we really should do is zap
625 * uninitialized inode tables instead.
626 */
627 request_fsck_afterwards(fs);
628 break;
629 }
630 gd->bg_itable_unused = 0;
631 gd->bg_flags = 0;
632 gd->bg_checksum = 0;
633 }
634 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
635 }
636
637 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
638 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
639 /*
640 * Set the Q_flag here and handle the quota options in the code
641 * below.
642 */
643 if (!Q_flag) {
644 Q_flag = 1;
645 /* Enable both user quota and group quota by default */
646 usrquota = QOPT_ENABLE;
647 grpquota = QOPT_ENABLE;
648 }
649 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
650 }
651
652 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
653 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
654 /*
655 * Set the Q_flag here and handle the quota options in the code
656 * below.
657 */
658 if (Q_flag)
659 fputs(_("\nWarning: '^quota' option overrides '-Q'"
660 "arguments.\n"), stderr);
661 Q_flag = 1;
662 /* Disable both user quota and group quota by default */
663 usrquota = QOPT_DISABLE;
664 grpquota = QOPT_DISABLE;
665 }
666
667 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
668 (sb->s_feature_compat || sb->s_feature_ro_compat ||
669 sb->s_feature_incompat))
670 ext2fs_update_dynamic_rev(fs);
671
672 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
673 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
674 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
675 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
676 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
677 EXT2_FEATURE_INCOMPAT_FILETYPE) ||
678 FEATURE_CHANGED(E2P_FEATURE_COMPAT,
679 EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
680 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
681 EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
682 request_fsck_afterwards(fs);
683
684 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
685 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
686 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
687 ext2fs_mark_super_dirty(fs);
688
689 return 0;
690 }
691
692 /*
693 * Add a journal to the filesystem.
694 */
695 static int add_journal(ext2_filsys fs)
696 {
697 unsigned long journal_blocks;
698 errcode_t retval;
699 ext2_filsys jfs;
700 io_manager io_ptr;
701
702 if (fs->super->s_feature_compat &
703 EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
704 fputs(_("The filesystem already has a journal.\n"), stderr);
705 goto err;
706 }
707 if (journal_device) {
708 if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
709 NULL))
710 proceed_question(-1);
711 check_mount(journal_device, 0, _("journal"));
712 #ifdef CONFIG_TESTIO_DEBUG
713 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
714 io_ptr = test_io_manager;
715 test_io_backing_manager = unix_io_manager;
716 } else
717 #endif
718 io_ptr = unix_io_manager;
719 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
720 EXT2_FLAG_JOURNAL_DEV_OK, 0,
721 fs->blocksize, io_ptr, &jfs);
722 if (retval) {
723 com_err(program_name, retval,
724 _("\n\twhile trying to open journal on %s\n"),
725 journal_device);
726 goto err;
727 }
728 printf(_("Creating journal on device %s: "),
729 journal_device);
730 fflush(stdout);
731
732 retval = ext2fs_add_journal_device(fs, jfs);
733 ext2fs_close_free(&jfs);
734 if (retval) {
735 com_err(program_name, retval,
736 _("while adding filesystem to journal on %s"),
737 journal_device);
738 goto err;
739 }
740 fputs(_("done\n"), stdout);
741 } else if (journal_size) {
742 fputs(_("Creating journal inode: "), stdout);
743 fflush(stdout);
744 journal_blocks = figure_journal_size(journal_size, fs);
745
746 if (journal_location_string)
747 journal_location =
748 parse_num_blocks2(journal_location_string,
749 fs->super->s_log_block_size);
750 retval = ext2fs_add_journal_inode2(fs, journal_blocks,
751 journal_location,
752 journal_flags);
753 if (retval) {
754 fprintf(stderr, "\n");
755 com_err(program_name, retval, "%s",
756 _("\n\twhile trying to create journal file"));
757 return retval;
758 } else
759 fputs(_("done\n"), stdout);
760 /*
761 * If the filesystem wasn't mounted, we need to force
762 * the block group descriptors out.
763 */
764 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
765 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
766 }
767 print_check_message(fs->super->s_max_mnt_count,
768 fs->super->s_checkinterval);
769 return 0;
770
771 err:
772 free(journal_device);
773 return 1;
774 }
775
776 static void handle_quota_options(ext2_filsys fs)
777 {
778 quota_ctx_t qctx;
779 ext2_ino_t qf_ino;
780
781 if (!usrquota && !grpquota)
782 /* Nothing to do. */
783 return;
784
785 quota_init_context(&qctx, fs, -1);
786
787 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE)
788 quota_compute_usage(qctx);
789
790 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
791 if ((qf_ino = quota_file_exists(fs, USRQUOTA,
792 QFMT_VFS_V1)) > 0)
793 quota_update_limits(qctx, qf_ino, USRQUOTA);
794 quota_write_inode(qctx, USRQUOTA);
795 } else if (usrquota == QOPT_DISABLE) {
796 quota_remove_inode(fs, USRQUOTA);
797 }
798
799 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) {
800 if ((qf_ino = quota_file_exists(fs, GRPQUOTA,
801 QFMT_VFS_V1)) > 0)
802 quota_update_limits(qctx, qf_ino, GRPQUOTA);
803 quota_write_inode(qctx, GRPQUOTA);
804 } else if (grpquota == QOPT_DISABLE) {
805 quota_remove_inode(fs, GRPQUOTA);
806 }
807
808 quota_release_context(&qctx);
809
810 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
811 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
812 ext2fs_mark_super_dirty(fs);
813 } else if (!fs->super->s_usr_quota_inum &&
814 !fs->super->s_grp_quota_inum) {
815 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
816 ext2fs_mark_super_dirty(fs);
817 }
818
819 return;
820 }
821
822 #ifdef CONFIG_QUOTA
823 static void parse_quota_opts(const char *opts)
824 {
825 char *buf, *token, *next, *p;
826 int len;
827
828 len = strlen(opts);
829 buf = malloc(len+1);
830 if (!buf) {
831 fputs(_("Couldn't allocate memory to parse quota "
832 "options!\n"), stderr);
833 exit(1);
834 }
835 strcpy(buf, opts);
836 for (token = buf; token && *token; token = next) {
837 p = strchr(token, ',');
838 next = 0;
839 if (p) {
840 *p = 0;
841 next = p+1;
842 }
843
844 if (strcmp(token, "usrquota") == 0) {
845 usrquota = QOPT_ENABLE;
846 } else if (strcmp(token, "^usrquota") == 0) {
847 usrquota = QOPT_DISABLE;
848 } else if (strcmp(token, "grpquota") == 0) {
849 grpquota = QOPT_ENABLE;
850 } else if (strcmp(token, "^grpquota") == 0) {
851 grpquota = QOPT_DISABLE;
852 } else {
853 fputs(_("\nBad quota options specified.\n\n"
854 "Following valid quota options are available "
855 "(pass by separating with comma):\n"
856 "\t[^]usrquota\n"
857 "\t[^]grpquota\n"
858 "\n\n"), stderr);
859 free(buf);
860 exit(1);
861 }
862 }
863 free(buf);
864 }
865 #endif
866
867 static void parse_e2label_options(int argc, char ** argv)
868 {
869 if ((argc < 2) || (argc > 3)) {
870 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
871 exit(1);
872 }
873 io_options = strchr(argv[1], '?');
874 if (io_options)
875 *io_options++ = 0;
876 device_name = blkid_get_devname(NULL, argv[1], NULL);
877 if (!device_name) {
878 com_err("e2label", 0, _("Unable to resolve '%s'"),
879 argv[1]);
880 exit(1);
881 }
882 open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
883 if (argc == 3) {
884 open_flag |= EXT2_FLAG_RW;
885 L_flag = 1;
886 new_label = argv[2];
887 } else
888 print_label++;
889 }
890
891 static time_t parse_time(char *str)
892 {
893 struct tm ts;
894
895 if (strcmp(str, "now") == 0) {
896 return (time(0));
897 }
898 memset(&ts, 0, sizeof(ts));
899 #ifdef HAVE_STRPTIME
900 strptime(str, "%Y%m%d%H%M%S", &ts);
901 #else
902 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
903 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
904 ts.tm_year -= 1900;
905 ts.tm_mon -= 1;
906 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
907 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
908 ts.tm_min > 59 || ts.tm_sec > 61)
909 ts.tm_mday = 0;
910 #endif
911 if (ts.tm_mday == 0) {
912 com_err(program_name, 0,
913 _("Couldn't parse date/time specifier: %s"),
914 str);
915 usage();
916 }
917 ts.tm_isdst = -1;
918 return (mktime(&ts));
919 }
920
921 static void parse_tune2fs_options(int argc, char **argv)
922 {
923 int c;
924 char *tmp;
925 struct group *gr;
926 struct passwd *pw;
927 char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:";
928
929 #ifdef CONFIG_QUOTA
930 strcat(optstring, "Q:");
931 #endif
932 open_flag = 0;
933
934 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
935 while ((c = getopt(argc, argv, optstring)) != EOF)
936 switch (c) {
937 case 'c':
938 max_mount_count = strtol(optarg, &tmp, 0);
939 if (*tmp || max_mount_count > 16000) {
940 com_err(program_name, 0,
941 _("bad mounts count - %s"),
942 optarg);
943 usage();
944 }
945 if (max_mount_count == 0)
946 max_mount_count = -1;
947 c_flag = 1;
948 open_flag = EXT2_FLAG_RW;
949 break;
950 case 'C':
951 mount_count = strtoul(optarg, &tmp, 0);
952 if (*tmp || mount_count > 16000) {
953 com_err(program_name, 0,
954 _("bad mounts count - %s"),
955 optarg);
956 usage();
957 }
958 C_flag = 1;
959 open_flag = EXT2_FLAG_RW;
960 break;
961 case 'e':
962 if (strcmp(optarg, "continue") == 0)
963 errors = EXT2_ERRORS_CONTINUE;
964 else if (strcmp(optarg, "remount-ro") == 0)
965 errors = EXT2_ERRORS_RO;
966 else if (strcmp(optarg, "panic") == 0)
967 errors = EXT2_ERRORS_PANIC;
968 else {
969 com_err(program_name, 0,
970 _("bad error behavior - %s"),
971 optarg);
972 usage();
973 }
974 e_flag = 1;
975 open_flag = EXT2_FLAG_RW;
976 break;
977 case 'E':
978 extended_cmd = optarg;
979 open_flag |= EXT2_FLAG_RW;
980 break;
981 case 'f': /* Force */
982 f_flag++;
983 break;
984 case 'g':
985 resgid = strtoul(optarg, &tmp, 0);
986 if (*tmp) {
987 gr = getgrnam(optarg);
988 if (gr == NULL)
989 tmp = optarg;
990 else {
991 resgid = gr->gr_gid;
992 *tmp = 0;
993 }
994 }
995 if (*tmp) {
996 com_err(program_name, 0,
997 _("bad gid/group name - %s"),
998 optarg);
999 usage();
1000 }
1001 g_flag = 1;
1002 open_flag = EXT2_FLAG_RW;
1003 break;
1004 case 'i':
1005 interval = strtoul(optarg, &tmp, 0);
1006 switch (*tmp) {
1007 case 's':
1008 tmp++;
1009 break;
1010 case '\0':
1011 case 'd':
1012 case 'D': /* days */
1013 interval *= 86400;
1014 if (*tmp != '\0')
1015 tmp++;
1016 break;
1017 case 'm':
1018 case 'M': /* months! */
1019 interval *= 86400 * 30;
1020 tmp++;
1021 break;
1022 case 'w':
1023 case 'W': /* weeks */
1024 interval *= 86400 * 7;
1025 tmp++;
1026 break;
1027 }
1028 if (*tmp) {
1029 com_err(program_name, 0,
1030 _("bad interval - %s"), optarg);
1031 usage();
1032 }
1033 i_flag = 1;
1034 open_flag = EXT2_FLAG_RW;
1035 break;
1036 case 'j':
1037 if (!journal_size)
1038 journal_size = -1;
1039 open_flag = EXT2_FLAG_RW;
1040 break;
1041 case 'J':
1042 parse_journal_opts(optarg);
1043 open_flag = EXT2_FLAG_RW;
1044 break;
1045 case 'l':
1046 l_flag = 1;
1047 break;
1048 case 'L':
1049 new_label = optarg;
1050 L_flag = 1;
1051 open_flag |= EXT2_FLAG_RW |
1052 EXT2_FLAG_JOURNAL_DEV_OK;
1053 break;
1054 case 'm':
1055 reserved_ratio = strtod(optarg, &tmp);
1056 if (*tmp || reserved_ratio > 50 ||
1057 reserved_ratio < 0) {
1058 com_err(program_name, 0,
1059 _("bad reserved block ratio - %s"),
1060 optarg);
1061 usage();
1062 }
1063 m_flag = 1;
1064 open_flag = EXT2_FLAG_RW;
1065 break;
1066 case 'M':
1067 new_last_mounted = optarg;
1068 M_flag = 1;
1069 open_flag = EXT2_FLAG_RW;
1070 break;
1071 case 'o':
1072 if (mntopts_cmd) {
1073 com_err(program_name, 0, "%s",
1074 _("-o may only be specified once"));
1075 usage();
1076 }
1077 mntopts_cmd = optarg;
1078 open_flag = EXT2_FLAG_RW;
1079 break;
1080 case 'O':
1081 if (features_cmd) {
1082 com_err(program_name, 0, "%s",
1083 _("-O may only be specified once"));
1084 usage();
1085 }
1086 features_cmd = optarg;
1087 open_flag = EXT2_FLAG_RW;
1088 break;
1089 #ifdef CONFIG_QUOTA
1090 case 'Q':
1091 Q_flag = 1;
1092 parse_quota_opts(optarg);
1093 open_flag = EXT2_FLAG_RW;
1094 break;
1095 #endif
1096 case 'r':
1097 reserved_blocks = strtoul(optarg, &tmp, 0);
1098 if (*tmp) {
1099 com_err(program_name, 0,
1100 _("bad reserved blocks count - %s"),
1101 optarg);
1102 usage();
1103 }
1104 r_flag = 1;
1105 open_flag = EXT2_FLAG_RW;
1106 break;
1107 case 's': /* Deprecated */
1108 s_flag = atoi(optarg);
1109 open_flag = EXT2_FLAG_RW;
1110 break;
1111 case 'T':
1112 T_flag = 1;
1113 last_check_time = parse_time(optarg);
1114 open_flag = EXT2_FLAG_RW;
1115 break;
1116 case 'u':
1117 resuid = strtoul(optarg, &tmp, 0);
1118 if (*tmp) {
1119 pw = getpwnam(optarg);
1120 if (pw == NULL)
1121 tmp = optarg;
1122 else {
1123 resuid = pw->pw_uid;
1124 *tmp = 0;
1125 }
1126 }
1127 if (*tmp) {
1128 com_err(program_name, 0,
1129 _("bad uid/user name - %s"),
1130 optarg);
1131 usage();
1132 }
1133 u_flag = 1;
1134 open_flag = EXT2_FLAG_RW;
1135 break;
1136 case 'U':
1137 new_UUID = optarg;
1138 U_flag = 1;
1139 open_flag = EXT2_FLAG_RW |
1140 EXT2_FLAG_JOURNAL_DEV_OK;
1141 break;
1142 case 'I':
1143 new_inode_size = strtoul(optarg, &tmp, 0);
1144 if (*tmp) {
1145 com_err(program_name, 0,
1146 _("bad inode size - %s"),
1147 optarg);
1148 usage();
1149 }
1150 if (!((new_inode_size &
1151 (new_inode_size - 1)) == 0)) {
1152 com_err(program_name, 0,
1153 _("Inode size must be a "
1154 "power of two- %s"),
1155 optarg);
1156 usage();
1157 }
1158 open_flag = EXT2_FLAG_RW;
1159 I_flag = 1;
1160 break;
1161 default:
1162 usage();
1163 }
1164 if (optind < argc - 1 || optind == argc)
1165 usage();
1166 if (!open_flag && !l_flag)
1167 usage();
1168 io_options = strchr(argv[optind], '?');
1169 if (io_options)
1170 *io_options++ = 0;
1171 device_name = blkid_get_devname(NULL, argv[optind], NULL);
1172 if (!device_name) {
1173 com_err(program_name, 0, _("Unable to resolve '%s'"),
1174 argv[optind]);
1175 exit(1);
1176 }
1177 }
1178
1179 #ifdef CONFIG_BUILD_FINDFS
1180 void do_findfs(int argc, char **argv)
1181 {
1182 char *dev;
1183
1184 if ((argc != 2) ||
1185 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
1186 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1187 exit(2);
1188 }
1189 dev = blkid_get_devname(NULL, argv[1], NULL);
1190 if (!dev) {
1191 com_err("findfs", 0, _("Unable to resolve '%s'"),
1192 argv[1]);
1193 exit(1);
1194 }
1195 puts(dev);
1196 exit(0);
1197 }
1198 #endif
1199
1200 static int parse_extended_opts(ext2_filsys fs, const char *opts)
1201 {
1202 char *buf, *token, *next, *p, *arg;
1203 int len, hash_alg;
1204 int r_usage = 0;
1205
1206 len = strlen(opts);
1207 buf = malloc(len+1);
1208 if (!buf) {
1209 fprintf(stderr, "%s",
1210 _("Couldn't allocate memory to parse options!\n"));
1211 return 1;
1212 }
1213 strcpy(buf, opts);
1214 for (token = buf; token && *token; token = next) {
1215 p = strchr(token, ',');
1216 next = 0;
1217 if (p) {
1218 *p = 0;
1219 next = p+1;
1220 }
1221 arg = strchr(token, '=');
1222 if (arg) {
1223 *arg = 0;
1224 arg++;
1225 }
1226 if (strcmp(token, "clear-mmp") == 0 ||
1227 strcmp(token, "clear_mmp") == 0) {
1228 clear_mmp = 1;
1229 } else if (strcmp(token, "mmp_update_interval") == 0) {
1230 unsigned long intv;
1231 if (!arg) {
1232 r_usage++;
1233 continue;
1234 }
1235 intv = strtoul(arg, &p, 0);
1236 if (*p) {
1237 fprintf(stderr,
1238 _("Invalid mmp_update_interval: %s\n"),
1239 arg);
1240 r_usage++;
1241 continue;
1242 }
1243 if (intv == 0) {
1244 intv = EXT4_MMP_UPDATE_INTERVAL;
1245 } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) {
1246 fprintf(stderr,
1247 _("mmp_update_interval too big: %lu\n"),
1248 intv);
1249 r_usage++;
1250 continue;
1251 }
1252 printf(P_("Setting multiple mount protection update "
1253 "interval to %lu second\n",
1254 "Setting multiple mount protection update "
1255 "interval to %lu seconds\n", intv),
1256 intv);
1257 fs->super->s_mmp_update_interval = intv;
1258 ext2fs_mark_super_dirty(fs);
1259 } else if (!strcmp(token, "test_fs")) {
1260 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1261 printf("Setting test filesystem flag\n");
1262 ext2fs_mark_super_dirty(fs);
1263 } else if (!strcmp(token, "^test_fs")) {
1264 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
1265 printf("Clearing test filesystem flag\n");
1266 ext2fs_mark_super_dirty(fs);
1267 } else if (strcmp(token, "stride") == 0) {
1268 if (!arg) {
1269 r_usage++;
1270 continue;
1271 }
1272 stride = strtoul(arg, &p, 0);
1273 if (*p) {
1274 fprintf(stderr,
1275 _("Invalid RAID stride: %s\n"),
1276 arg);
1277 r_usage++;
1278 continue;
1279 }
1280 stride_set = 1;
1281 } else if (strcmp(token, "stripe-width") == 0 ||
1282 strcmp(token, "stripe_width") == 0) {
1283 if (!arg) {
1284 r_usage++;
1285 continue;
1286 }
1287 stripe_width = strtoul(arg, &p, 0);
1288 if (*p) {
1289 fprintf(stderr,
1290 _("Invalid RAID stripe-width: %s\n"),
1291 arg);
1292 r_usage++;
1293 continue;
1294 }
1295 stripe_width_set = 1;
1296 } else if (strcmp(token, "hash_alg") == 0 ||
1297 strcmp(token, "hash-alg") == 0) {
1298 if (!arg) {
1299 r_usage++;
1300 continue;
1301 }
1302 hash_alg = e2p_string2hash(arg);
1303 if (hash_alg < 0) {
1304 fprintf(stderr,
1305 _("Invalid hash algorithm: %s\n"),
1306 arg);
1307 r_usage++;
1308 continue;
1309 }
1310 fs->super->s_def_hash_version = hash_alg;
1311 printf(_("Setting default hash algorithm "
1312 "to %s (%d)\n"),
1313 arg, hash_alg);
1314 ext2fs_mark_super_dirty(fs);
1315 } else if (!strcmp(token, "mount_opts")) {
1316 if (!arg) {
1317 r_usage++;
1318 continue;
1319 }
1320 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
1321 fprintf(stderr,
1322 "Extended mount options too long\n");
1323 continue;
1324 }
1325 ext_mount_opts = strdup(arg);
1326 } else
1327 r_usage++;
1328 }
1329 if (r_usage) {
1330 fprintf(stderr, "%s", _("\nBad options specified.\n\n"
1331 "Extended options are separated by commas, "
1332 "and may take an argument which\n"
1333 "\tis set off by an equals ('=') sign.\n\n"
1334 "Valid extended options are:\n"
1335 "\tclear_mmp\n"
1336 "\thash_alg=<hash algorithm>\n"
1337 "\tmount_opts=<extended default mount options>\n"
1338 "\tstride=<RAID per-disk chunk size in blocks>\n"
1339 "\tstripe_width=<RAID stride*data disks in blocks>\n"
1340 "\ttest_fs\n"
1341 "\t^test_fs\n"));
1342 free(buf);
1343 return 1;
1344 }
1345 free(buf);
1346
1347 return 0;
1348 }
1349
1350 /*
1351 * Fill in the block bitmap bmap with the information regarding the
1352 * blocks to be moved
1353 */
1354 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
1355 ext2fs_block_bitmap bmap)
1356 {
1357 dgrp_t i;
1358 int retval;
1359 ext2_badblocks_list bb_list = 0;
1360 blk64_t j, needed_blocks = 0;
1361 blk64_t start_blk, end_blk;
1362
1363 retval = ext2fs_read_bb_inode(fs, &bb_list);
1364 if (retval)
1365 return retval;
1366
1367 for (i = 0; i < fs->group_desc_count; i++) {
1368 start_blk = ext2fs_inode_table_loc(fs, i) +
1369 fs->inode_blocks_per_group;
1370
1371 end_blk = ext2fs_inode_table_loc(fs, i) +
1372 new_ino_blks_per_grp;
1373
1374 for (j = start_blk; j < end_blk; j++) {
1375 if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
1376 /*
1377 * IF the block is a bad block we fail
1378 */
1379 if (ext2fs_badblocks_list_test(bb_list, j)) {
1380 ext2fs_badblocks_list_free(bb_list);
1381 return ENOSPC;
1382 }
1383
1384 ext2fs_mark_block_bitmap2(bmap, j);
1385 } else {
1386 /*
1387 * We are going to use this block for
1388 * inode table. So mark them used.
1389 */
1390 ext2fs_mark_block_bitmap2(fs->block_map, j);
1391 }
1392 }
1393 needed_blocks += end_blk - start_blk;
1394 }
1395
1396 ext2fs_badblocks_list_free(bb_list);
1397 if (needed_blocks > ext2fs_free_blocks_count(fs->super))
1398 return ENOSPC;
1399
1400 return 0;
1401 }
1402
1403 static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk)
1404 {
1405 dgrp_t group;
1406 group = ext2fs_group_of_blk2(fs, blk);
1407 if (ext2fs_block_bitmap_loc(fs, group) == blk)
1408 return 1;
1409 if (ext2fs_inode_bitmap_loc(fs, group) == blk)
1410 return 1;
1411 return 0;
1412 }
1413
1414 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk)
1415 {
1416 blk64_t start_blk, end_blk;
1417 start_blk = fs->super->s_first_data_block +
1418 EXT2_GROUPS_TO_BLOCKS(fs->super, group);
1419 /*
1420 * We cannot get new block beyond end_blk for for the last block group
1421 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
1422 */
1423 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
1424 if (blk >= start_blk && blk <= end_blk)
1425 return 1;
1426 return 0;
1427 }
1428
1429 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
1430 {
1431
1432 char *buf;
1433 dgrp_t group = 0;
1434 errcode_t retval;
1435 int meta_data = 0;
1436 blk64_t blk, new_blk, goal;
1437 struct blk_move *bmv;
1438
1439 retval = ext2fs_get_mem(fs->blocksize, &buf);
1440 if (retval)
1441 return retval;
1442
1443 for (new_blk = blk = fs->super->s_first_data_block;
1444 blk < ext2fs_blocks_count(fs->super); blk++) {
1445 if (!ext2fs_test_block_bitmap2(bmap, blk))
1446 continue;
1447
1448 if (ext2fs_is_meta_block(fs, blk)) {
1449 /*
1450 * If the block is mapping a fs meta data block
1451 * like group desc/block bitmap/inode bitmap. We
1452 * should find a block in the same group and fix
1453 * the respective fs metadata pointers. Otherwise
1454 * fail
1455 */
1456 group = ext2fs_group_of_blk2(fs, blk);
1457 goal = ext2fs_group_first_block2(fs, group);
1458 meta_data = 1;
1459
1460 } else {
1461 goal = new_blk;
1462 }
1463 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
1464 if (retval)
1465 goto err_out;
1466
1467 /* new fs meta data block should be in the same group */
1468 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
1469 retval = ENOSPC;
1470 goto err_out;
1471 }
1472
1473 /* Mark this block as allocated */
1474 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
1475
1476 /* Add it to block move list */
1477 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
1478 if (retval)
1479 goto err_out;
1480
1481 bmv->old_loc = blk;
1482 bmv->new_loc = new_blk;
1483
1484 list_add(&(bmv->list), &blk_move_list);
1485
1486 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
1487 if (retval)
1488 goto err_out;
1489
1490 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
1491 if (retval)
1492 goto err_out;
1493 }
1494
1495 err_out:
1496 ext2fs_free_mem(&buf);
1497 return retval;
1498 }
1499
1500 static blk64_t translate_block(blk64_t blk)
1501 {
1502 struct list_head *entry;
1503 struct blk_move *bmv;
1504
1505 list_for_each(entry, &blk_move_list) {
1506 bmv = list_entry(entry, struct blk_move, list);
1507 if (bmv->old_loc == blk)
1508 return bmv->new_loc;
1509 }
1510
1511 return 0;
1512 }
1513
1514 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
1515 blk64_t *block_nr,
1516 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1517 blk64_t ref_block EXT2FS_ATTR((unused)),
1518 int ref_offset EXT2FS_ATTR((unused)),
1519 void *priv_data)
1520 {
1521 int ret = 0;
1522 blk64_t new_blk;
1523 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
1524
1525 if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
1526 return 0;
1527 new_blk = translate_block(*block_nr);
1528 if (new_blk) {
1529 *block_nr = new_blk;
1530 /*
1531 * This will force the ext2fs_write_inode in the iterator
1532 */
1533 ret |= BLOCK_CHANGED;
1534 }
1535
1536 return ret;
1537 }
1538
1539 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1540 {
1541 errcode_t retval = 0;
1542 ext2_ino_t ino;
1543 blk64_t blk;
1544 char *block_buf = 0;
1545 struct ext2_inode inode;
1546 ext2_inode_scan scan = NULL;
1547
1548 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
1549 if (retval)
1550 return retval;
1551
1552 retval = ext2fs_open_inode_scan(fs, 0, &scan);
1553 if (retval)
1554 goto err_out;
1555
1556 while (1) {
1557 retval = ext2fs_get_next_inode(scan, &ino, &inode);
1558 if (retval)
1559 goto err_out;
1560
1561 if (!ino)
1562 break;
1563
1564 if (inode.i_links_count == 0)
1565 continue; /* inode not in use */
1566
1567 /* FIXME!!
1568 * If we end up modifying the journal inode
1569 * the sb->s_jnl_blocks will differ. But a
1570 * subsequent e2fsck fixes that.
1571 * Do we need to fix this ??
1572 */
1573
1574 if (ext2fs_file_acl_block(fs, &inode) &&
1575 ext2fs_test_block_bitmap2(bmap,
1576 ext2fs_file_acl_block(fs, &inode))) {
1577 blk = translate_block(ext2fs_file_acl_block(fs,
1578 &inode));
1579 if (!blk)
1580 continue;
1581
1582 ext2fs_file_acl_block_set(fs, &inode, blk);
1583
1584 /*
1585 * Write the inode to disk so that inode table
1586 * resizing can work
1587 */
1588 retval = ext2fs_write_inode(fs, ino, &inode);
1589 if (retval)
1590 goto err_out;
1591 }
1592
1593 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
1594 continue;
1595
1596 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
1597 process_block, bmap);
1598 if (retval)
1599 goto err_out;
1600
1601 }
1602
1603 err_out:
1604 ext2fs_free_mem(&block_buf);
1605
1606 return retval;
1607 }
1608
1609 /*
1610 * We need to scan for inode and block bitmaps that may need to be
1611 * moved. This can take place if the filesystem was formatted for
1612 * RAID arrays using the mke2fs's extended option "stride".
1613 */
1614 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1615 {
1616 dgrp_t i;
1617 blk64_t blk, new_blk;
1618
1619 for (i = 0; i < fs->group_desc_count; i++) {
1620 blk = ext2fs_block_bitmap_loc(fs, i);
1621 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1622 new_blk = translate_block(blk);
1623 if (!new_blk)
1624 continue;
1625 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
1626 }
1627
1628 blk = ext2fs_inode_bitmap_loc(fs, i);
1629 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1630 new_blk = translate_block(blk);
1631 if (!new_blk)
1632 continue;
1633 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
1634 }
1635 }
1636 return 0;
1637 }
1638
1639 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
1640 {
1641 dgrp_t i;
1642 blk64_t blk;
1643 errcode_t retval;
1644 int new_ino_blks_per_grp;
1645 unsigned int j;
1646 char *old_itable = NULL, *new_itable = NULL;
1647 char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
1648 unsigned long old_ino_size;
1649 int old_itable_size, new_itable_size;
1650
1651 old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
1652 old_ino_size = EXT2_INODE_SIZE(fs->super);
1653
1654 new_ino_blks_per_grp = ext2fs_div_ceil(
1655 EXT2_INODES_PER_GROUP(fs->super) *
1656 new_ino_size,
1657 fs->blocksize);
1658
1659 new_itable_size = new_ino_blks_per_grp * fs->blocksize;
1660
1661 retval = ext2fs_get_mem(old_itable_size, &old_itable);
1662 if (retval)
1663 return retval;
1664
1665 retval = ext2fs_get_mem(new_itable_size, &new_itable);
1666 if (retval)
1667 goto err_out;
1668
1669 tmp_old_itable = old_itable;
1670 tmp_new_itable = new_itable;
1671
1672 for (i = 0; i < fs->group_desc_count; i++) {
1673 blk = ext2fs_inode_table_loc(fs, i);
1674 retval = io_channel_read_blk64(fs->io, blk,
1675 fs->inode_blocks_per_group, old_itable);
1676 if (retval)
1677 goto err_out;
1678
1679 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
1680 memcpy(new_itable, old_itable, old_ino_size);
1681
1682 memset(new_itable+old_ino_size, 0,
1683 new_ino_size - old_ino_size);
1684
1685 new_itable += new_ino_size;
1686 old_itable += old_ino_size;
1687 }
1688
1689 /* reset the pointer */
1690 old_itable = tmp_old_itable;
1691 new_itable = tmp_new_itable;
1692
1693 retval = io_channel_write_blk64(fs->io, blk,
1694 new_ino_blks_per_grp, new_itable);
1695 if (retval)
1696 goto err_out;
1697 }
1698
1699 /* Update the meta data */
1700 fs->inode_blocks_per_group = new_ino_blks_per_grp;
1701 fs->super->s_inode_size = new_ino_size;
1702
1703 err_out:
1704 if (old_itable)
1705 ext2fs_free_mem(&old_itable);
1706
1707 if (new_itable)
1708 ext2fs_free_mem(&new_itable);
1709
1710 return retval;
1711 }
1712
1713 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
1714 {
1715 blk64_t blk;
1716 ext2_ino_t ino;
1717 unsigned int group = 0;
1718 unsigned int count = 0;
1719 int total_free = 0;
1720 int group_free = 0;
1721
1722 /*
1723 * First calculate the block statistics
1724 */
1725 for (blk = fs->super->s_first_data_block;
1726 blk < ext2fs_blocks_count(fs->super); blk++) {
1727 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
1728 group_free++;
1729 total_free++;
1730 }
1731 count++;
1732 if ((count == fs->super->s_blocks_per_group) ||
1733 (blk == ext2fs_blocks_count(fs->super)-1)) {
1734 ext2fs_bg_free_blocks_count_set(fs, group++,
1735 group_free);
1736 count = 0;
1737 group_free = 0;
1738 }
1739 }
1740 total_free = EXT2FS_C2B(fs, total_free);
1741 ext2fs_free_blocks_count_set(fs->super, total_free);
1742
1743 /*
1744 * Next, calculate the inode statistics
1745 */
1746 group_free = 0;
1747 total_free = 0;
1748 count = 0;
1749 group = 0;
1750
1751 /* Protect loop from wrap-around if s_inodes_count maxed */
1752 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
1753 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
1754 group_free++;
1755 total_free++;
1756 }
1757 count++;
1758 if ((count == fs->super->s_inodes_per_group) ||
1759 (ino == fs->super->s_inodes_count)) {
1760 ext2fs_bg_free_inodes_count_set(fs, group++,
1761 group_free);
1762 count = 0;
1763 group_free = 0;
1764 }
1765 }
1766 fs->super->s_free_inodes_count = total_free;
1767 ext2fs_mark_super_dirty(fs);
1768 return 0;
1769 }
1770
1771 #define list_for_each_safe(pos, pnext, head) \
1772 for (pos = (head)->next, pnext = pos->next; pos != (head); \
1773 pos = pnext, pnext = pos->next)
1774
1775 static void free_blk_move_list(void)
1776 {
1777 struct list_head *entry, *tmp;
1778 struct blk_move *bmv;
1779
1780 list_for_each_safe(entry, tmp, &blk_move_list) {
1781 bmv = list_entry(entry, struct blk_move, list);
1782 list_del(entry);
1783 ext2fs_free_mem(&bmv);
1784 }
1785 return;
1786 }
1787
1788 static int resize_inode(ext2_filsys fs, unsigned long new_size)
1789 {
1790 errcode_t retval;
1791 int new_ino_blks_per_grp;
1792 ext2fs_block_bitmap bmap;
1793
1794 retval = ext2fs_read_inode_bitmap(fs);
1795 if (retval) {
1796 fputs(_("Failed to read inode bitmap\n"), stderr);
1797 return retval;
1798 }
1799 retval = ext2fs_read_block_bitmap(fs);
1800 if (retval) {
1801 fputs(_("Failed to read block bitmap\n"), stderr);
1802 return retval;
1803 }
1804 INIT_LIST_HEAD(&blk_move_list);
1805
1806
1807 new_ino_blks_per_grp = ext2fs_div_ceil(
1808 EXT2_INODES_PER_GROUP(fs->super)*
1809 new_size,
1810 fs->blocksize);
1811
1812 /* We may change the file system.
1813 * Mark the file system as invalid so that
1814 * the user is prompted to run fsck.
1815 */
1816 fs->super->s_state &= ~EXT2_VALID_FS;
1817
1818 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
1819 &bmap);
1820 if (retval) {
1821 fputs(_("Failed to allocate block bitmap when "
1822 "increasing inode size\n"), stderr);
1823 return retval;
1824 }
1825 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
1826 if (retval) {
1827 fputs(_("Not enough space to increase inode size \n"), stderr);
1828 goto err_out;
1829 }
1830 retval = move_block(fs, bmap);
1831 if (retval) {
1832 fputs(_("Failed to relocate blocks during inode resize \n"),
1833 stderr);
1834 goto err_out;
1835 }
1836 retval = inode_scan_and_fix(fs, bmap);
1837 if (retval)
1838 goto err_out_undo;
1839
1840 retval = group_desc_scan_and_fix(fs, bmap);
1841 if (retval)
1842 goto err_out_undo;
1843
1844 retval = expand_inode_table(fs, new_size);
1845 if (retval)
1846 goto err_out_undo;
1847
1848 ext2fs_calculate_summary_stats(fs);
1849
1850 fs->super->s_state |= EXT2_VALID_FS;
1851 /* mark super block and block bitmap as dirty */
1852 ext2fs_mark_super_dirty(fs);
1853 ext2fs_mark_bb_dirty(fs);
1854
1855 err_out:
1856 free_blk_move_list();
1857 ext2fs_free_block_bitmap(bmap);
1858
1859 return retval;
1860
1861 err_out_undo:
1862 free_blk_move_list();
1863 ext2fs_free_block_bitmap(bmap);
1864 fputs(_("Error in resizing the inode size.\n"
1865 "Run e2undo to undo the "
1866 "file system changes. \n"), stderr);
1867
1868 return retval;
1869 }
1870
1871 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
1872 {
1873 errcode_t retval = 0;
1874 const char *tdb_dir;
1875 char *tdb_file;
1876 char *dev_name, *tmp_name;
1877
1878 #if 0 /* FIXME!! */
1879 /*
1880 * Configuration via a conf file would be
1881 * nice
1882 */
1883 profile_get_string(profile, "scratch_files",
1884 "directory", 0, 0,
1885 &tdb_dir);
1886 #endif
1887 tmp_name = strdup(name);
1888 if (!tmp_name) {
1889 alloc_fn_fail:
1890 com_err(program_name, ENOMEM, "%s",
1891 _("Couldn't allocate memory for tdb filename\n"));
1892 return ENOMEM;
1893 }
1894 dev_name = basename(tmp_name);
1895
1896 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1897 if (!tdb_dir)
1898 tdb_dir = "/var/lib/e2fsprogs";
1899
1900 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1901 access(tdb_dir, W_OK))
1902 return 0;
1903
1904 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
1905 if (!tdb_file)
1906 goto alloc_fn_fail;
1907 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
1908
1909 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
1910 retval = errno;
1911 com_err(program_name, retval,
1912 _("while trying to delete %s"), tdb_file);
1913 free(tdb_file);
1914 return retval;
1915 }
1916
1917 set_undo_io_backing_manager(*io_ptr);
1918 *io_ptr = undo_io_manager;
1919 set_undo_io_backup_file(tdb_file);
1920 printf(_("To undo the tune2fs operation please run "
1921 "the command\n e2undo %s %s\n\n"),
1922 tdb_file, name);
1923 free(tdb_file);
1924 free(tmp_name);
1925 return retval;
1926 }
1927
1928 int
1929 fs_update_journal_user(struct ext2_super_block *sb, __u8 old_uuid[UUID_SIZE])
1930 {
1931 int retval, nr_users, start;
1932 journal_superblock_t *jsb;
1933 ext2_filsys jfs;
1934 __u8 *j_uuid;
1935 char *journal_path;
1936 char uuid[UUID_STR_SIZE];
1937 char buf[SUPERBLOCK_SIZE];
1938
1939 if (!(sb->s_feature_compat & EXT3_FEATURE_COMPAT_HAS_JOURNAL) ||
1940 uuid_is_null(sb->s_journal_uuid))
1941 return 0;
1942
1943 uuid_unparse(sb->s_journal_uuid, uuid);
1944 journal_path = blkid_get_devname(NULL, "UUID", uuid);
1945 if (!journal_path)
1946 return 0;
1947
1948 retval = ext2fs_open2(journal_path, io_options,
1949 EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_RW,
1950 0, 0, unix_io_manager, &jfs);
1951 if (retval) {
1952 com_err(program_name, retval,
1953 _("while trying to open %s"),
1954 journal_path);
1955 return retval;
1956 }
1957
1958 retval = get_journal_sb(jfs, buf);
1959 if (retval != 0) {
1960 if (retval == EXT2_ET_UNSUPP_FEATURE)
1961 fprintf(stderr, _("%s is not a journal device.\n"),
1962 journal_path);
1963 return retval;
1964 }
1965
1966 jsb = (journal_superblock_t *) buf;
1967 /* Find the filesystem UUID */
1968 nr_users = ntohl(jsb->s_nr_users);
1969
1970 j_uuid = journal_user(old_uuid, jsb->s_users, nr_users);
1971 if (j_uuid == NULL) {
1972 fputs(_("Filesystem's UUID not found on journal device.\n"),
1973 stderr);
1974 return EXT2_ET_LOAD_EXT_JOURNAL;
1975 }
1976
1977 memcpy(j_uuid, sb->s_uuid, UUID_SIZE);
1978
1979 start = ext2fs_journal_sb_start(jfs->blocksize);
1980 /* Write back the journal superblock */
1981 retval = io_channel_write_blk64(jfs->io, start, -SUPERBLOCK_SIZE, buf);
1982 if (retval != 0) {
1983 com_err(program_name, retval,
1984 "while writing journal superblock.");
1985 return retval;
1986 }
1987
1988 ext2fs_close(jfs);
1989
1990 return 0;
1991 }
1992
1993 int main(int argc, char **argv)
1994 {
1995 errcode_t retval;
1996 ext2_filsys fs;
1997 struct ext2_super_block *sb;
1998 io_manager io_ptr, io_ptr_orig = NULL;
1999 int rc = 0;
2000
2001 #ifdef ENABLE_NLS
2002 setlocale(LC_MESSAGES, "");
2003 setlocale(LC_CTYPE, "");
2004 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
2005 textdomain(NLS_CAT_NAME);
2006 set_com_err_gettext(gettext);
2007 #endif
2008 if (argc && *argv)
2009 program_name = *argv;
2010 add_error_table(&et_ext2_error_table);
2011
2012 #ifdef CONFIG_BUILD_FINDFS
2013 if (strcmp(get_progname(argv[0]), "findfs") == 0)
2014 do_findfs(argc, argv);
2015 #endif
2016 if (strcmp(get_progname(argv[0]), "e2label") == 0)
2017 parse_e2label_options(argc, argv);
2018 else
2019 parse_tune2fs_options(argc, argv);
2020
2021 #ifdef CONFIG_TESTIO_DEBUG
2022 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
2023 io_ptr = test_io_manager;
2024 test_io_backing_manager = unix_io_manager;
2025 } else
2026 #endif
2027 io_ptr = unix_io_manager;
2028
2029 retry_open:
2030 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
2031 open_flag |= EXT2_FLAG_SKIP_MMP;
2032
2033 open_flag |= EXT2_FLAG_64BITS;
2034
2035 /* keep the filesystem struct around to dump MMP data */
2036 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
2037
2038 retval = ext2fs_open2(device_name, io_options, open_flag,
2039 0, 0, io_ptr, &fs);
2040 if (retval) {
2041 com_err(program_name, retval,
2042 _("while trying to open %s"),
2043 device_name);
2044 if (retval == EXT2_ET_MMP_FSCK_ON ||
2045 retval == EXT2_ET_MMP_UNKNOWN_SEQ)
2046 dump_mmp_msg(fs->mmp_buf,
2047 _("If you are sure the filesystem "
2048 "is not in use on any node, run:\n"
2049 "'tune2fs -f -E clear_mmp {device}'\n"));
2050 else if (retval == EXT2_ET_MMP_FAILED)
2051 dump_mmp_msg(fs->mmp_buf, NULL);
2052 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
2053 fprintf(stderr,
2054 _("MMP block magic is bad. Try to fix it by "
2055 "running:\n'e2fsck -f %s'\n"), device_name);
2056 else if (retval != EXT2_ET_MMP_FAILED)
2057 fprintf(stderr, "%s",
2058 _("Couldn't find valid filesystem superblock.\n"));
2059
2060 ext2fs_free(fs);
2061 exit(1);
2062 }
2063 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
2064
2065 if (I_flag && !io_ptr_orig) {
2066 /*
2067 * Check the inode size is right so we can issue an
2068 * error message and bail before setting up the tdb
2069 * file.
2070 */
2071 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
2072 fprintf(stderr, _("The inode size is already %lu\n"),
2073 new_inode_size);
2074 rc = 1;
2075 goto closefs;
2076 }
2077 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
2078 fprintf(stderr, "%s",
2079 _("Shrinking inode size is not supported\n"));
2080 rc = 1;
2081 goto closefs;
2082 }
2083 if (new_inode_size > fs->blocksize) {
2084 fprintf(stderr, _("Invalid inode size %lu (max %d)\n"),
2085 new_inode_size, fs->blocksize);
2086 rc = 1;
2087 goto closefs;
2088 }
2089
2090 /*
2091 * If inode resize is requested use the
2092 * Undo I/O manager
2093 */
2094 io_ptr_orig = io_ptr;
2095 retval = tune2fs_setup_tdb(device_name, &io_ptr);
2096 if (retval) {
2097 rc = 1;
2098 goto closefs;
2099 }
2100 if (io_ptr != io_ptr_orig) {
2101 ext2fs_close_free(&fs);
2102 goto retry_open;
2103 }
2104 }
2105
2106 sb = fs->super;
2107 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2108
2109 if (print_label) {
2110 /* For e2label emulation */
2111 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
2112 sb->s_volume_name);
2113 remove_error_table(&et_ext2_error_table);
2114 goto closefs;
2115 }
2116
2117 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
2118 if (retval) {
2119 com_err("ext2fs_check_if_mount", retval,
2120 _("while determining whether %s is mounted."),
2121 device_name);
2122 rc = 1;
2123 goto closefs;
2124 }
2125 /* Normally we only need to write out the superblock */
2126 fs->flags |= EXT2_FLAG_SUPER_ONLY;
2127
2128 if (c_flag) {
2129 sb->s_max_mnt_count = max_mount_count;
2130 ext2fs_mark_super_dirty(fs);
2131 printf(_("Setting maximal mount count to %d\n"),
2132 max_mount_count);
2133 }
2134 if (C_flag) {
2135 sb->s_mnt_count = mount_count;
2136 ext2fs_mark_super_dirty(fs);
2137 printf(_("Setting current mount count to %d\n"), mount_count);
2138 }
2139 if (e_flag) {
2140 sb->s_errors = errors;
2141 ext2fs_mark_super_dirty(fs);
2142 printf(_("Setting error behavior to %d\n"), errors);
2143 }
2144 if (g_flag) {
2145 sb->s_def_resgid = resgid;
2146 ext2fs_mark_super_dirty(fs);
2147 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
2148 }
2149 if (i_flag) {
2150 if ((unsigned long long)interval >= (1ULL << 32)) {
2151 com_err(program_name, 0,
2152 _("interval between checks is too big (%lu)"),
2153 interval);
2154 rc = 1;
2155 goto closefs;
2156 }
2157 sb->s_checkinterval = interval;
2158 ext2fs_mark_super_dirty(fs);
2159 printf(_("Setting interval between checks to %lu seconds\n"),
2160 interval);
2161 }
2162 if (m_flag) {
2163 ext2fs_r_blocks_count_set(sb, reserved_ratio *
2164 ext2fs_blocks_count(sb) / 100.0);
2165 ext2fs_mark_super_dirty(fs);
2166 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2167 reserved_ratio, ext2fs_r_blocks_count(sb));
2168 }
2169 if (r_flag) {
2170 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
2171 com_err(program_name, 0,
2172 _("reserved blocks count is too big (%llu)"),
2173 reserved_blocks);
2174 rc = 1;
2175 goto closefs;
2176 }
2177 ext2fs_r_blocks_count_set(sb, reserved_blocks);
2178 ext2fs_mark_super_dirty(fs);
2179 printf(_("Setting reserved blocks count to %llu\n"),
2180 reserved_blocks);
2181 }
2182 if (s_flag == 1) {
2183 if (sb->s_feature_ro_compat &
2184 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) {
2185 fputs(_("\nThe filesystem already has sparse "
2186 "superblocks.\n"), stderr);
2187 } else if (sb->s_feature_incompat &
2188 EXT2_FEATURE_INCOMPAT_META_BG) {
2189 fputs(_("\nSetting the sparse superblock flag not "
2190 "supported\nfor filesystems with "
2191 "the meta_bg feature enabled.\n"),
2192 stderr);
2193 rc = 1;
2194 goto closefs;
2195 } else {
2196 sb->s_feature_ro_compat |=
2197 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2198 sb->s_state &= ~EXT2_VALID_FS;
2199 ext2fs_mark_super_dirty(fs);
2200 printf(_("\nSparse superblock flag set. %s"),
2201 _(please_fsck));
2202 }
2203 }
2204 if (s_flag == 0) {
2205 fputs(_("\nClearing the sparse superblock flag not supported.\n"),
2206 stderr);
2207 rc = 1;
2208 goto closefs;
2209 }
2210 if (T_flag) {
2211 sb->s_lastcheck = last_check_time;
2212 ext2fs_mark_super_dirty(fs);
2213 printf(_("Setting time filesystem last checked to %s\n"),
2214 ctime(&last_check_time));
2215 }
2216 if (u_flag) {
2217 sb->s_def_resuid = resuid;
2218 ext2fs_mark_super_dirty(fs);
2219 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
2220 }
2221 if (L_flag) {
2222 if (strlen(new_label) > sizeof(sb->s_volume_name))
2223 fputs(_("Warning: label too long, truncating.\n"),
2224 stderr);
2225 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
2226 strncpy(sb->s_volume_name, new_label,
2227 sizeof(sb->s_volume_name));
2228 ext2fs_mark_super_dirty(fs);
2229 }
2230 if (M_flag) {
2231 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
2232 strncpy(sb->s_last_mounted, new_last_mounted,
2233 sizeof(sb->s_last_mounted));
2234 ext2fs_mark_super_dirty(fs);
2235 }
2236 if (mntopts_cmd) {
2237 rc = update_mntopts(fs, mntopts_cmd);
2238 if (rc)
2239 goto closefs;
2240 }
2241 if (features_cmd) {
2242 rc = update_feature_set(fs, features_cmd);
2243 if (rc)
2244 goto closefs;
2245 }
2246 if (extended_cmd) {
2247 rc = parse_extended_opts(fs, extended_cmd);
2248 if (rc)
2249 goto closefs;
2250 if (clear_mmp && !f_flag) {
2251 fputs(_("Error in using clear_mmp. "
2252 "It must be used with -f\n"),
2253 stderr);
2254 goto closefs;
2255 }
2256 }
2257 if (clear_mmp) {
2258 rc = ext2fs_mmp_clear(fs);
2259 goto closefs;
2260 }
2261 if (journal_size || journal_device) {
2262 rc = add_journal(fs);
2263 if (rc)
2264 goto closefs;
2265 }
2266
2267 if (Q_flag) {
2268 if (mount_flags & EXT2_MF_MOUNTED) {
2269 fputs(_("The quota feature may only be changed when "
2270 "the filesystem is unmounted.\n"), stderr);
2271 rc = 1;
2272 goto closefs;
2273 }
2274 handle_quota_options(fs);
2275 }
2276
2277 if (U_flag) {
2278 int set_csum = 0;
2279 dgrp_t i;
2280 char buf[SUPERBLOCK_SIZE];
2281 __u8 old_uuid[UUID_SIZE];
2282
2283 if (sb->s_feature_ro_compat &
2284 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
2285 /*
2286 * Changing the UUID requires rewriting all metadata,
2287 * which can race with a mounted fs. Don't allow that.
2288 */
2289 if (mount_flags & EXT2_MF_MOUNTED) {
2290 fputs(_("The UUID may only be "
2291 "changed when the filesystem is "
2292 "unmounted.\n"), stderr);
2293 exit(1);
2294 }
2295 if (check_fsck_needed(fs))
2296 exit(1);
2297
2298 /*
2299 * Determine if the block group checksums are
2300 * correct so we know whether or not to set
2301 * them later on.
2302 */
2303 for (i = 0; i < fs->group_desc_count; i++)
2304 if (!ext2fs_group_desc_csum_verify(fs, i))
2305 break;
2306 if (i >= fs->group_desc_count)
2307 set_csum = 1;
2308 }
2309
2310 memcpy(old_uuid, sb->s_uuid, UUID_SIZE);
2311 if ((strcasecmp(new_UUID, "null") == 0) ||
2312 (strcasecmp(new_UUID, "clear") == 0)) {
2313 uuid_clear(sb->s_uuid);
2314 } else if (strcasecmp(new_UUID, "time") == 0) {
2315 uuid_generate_time(sb->s_uuid);
2316 } else if (strcasecmp(new_UUID, "random") == 0) {
2317 uuid_generate(sb->s_uuid);
2318 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
2319 com_err(program_name, 0, "%s",
2320 _("Invalid UUID format\n"));
2321 rc = 1;
2322 goto closefs;
2323 }
2324 if (set_csum) {
2325 for (i = 0; i < fs->group_desc_count; i++)
2326 ext2fs_group_desc_csum_set(fs, i);
2327 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2328 }
2329
2330 /* If this is a journal dev, we need to copy UUID into jsb */
2331 if (!(rc = get_journal_sb(fs, buf))) {
2332 journal_superblock_t *jsb;
2333
2334 jsb = (journal_superblock_t *) buf;
2335 fputs(_("Need to update journal superblock.\n"), stdout);
2336 memcpy(jsb->s_uuid, sb->s_uuid, sizeof(sb->s_uuid));
2337
2338 /* Writeback the journal superblock */
2339 if ((rc = io_channel_write_blk64(fs->io,
2340 ext2fs_journal_sb_start(fs->blocksize),
2341 -SUPERBLOCK_SIZE, buf)))
2342 goto closefs;
2343 } else if (rc != EXT2_ET_UNSUPP_FEATURE)
2344 goto closefs;
2345 else {
2346 rc = 0; /** Reset rc to avoid ext2fs_mmp_stop() */
2347
2348 if ((rc = fs_update_journal_user(sb, old_uuid)))
2349 goto closefs;
2350 }
2351
2352 ext2fs_mark_super_dirty(fs);
2353 }
2354 if (I_flag) {
2355 if (mount_flags & EXT2_MF_MOUNTED) {
2356 fputs(_("The inode size may only be "
2357 "changed when the filesystem is "
2358 "unmounted.\n"), stderr);
2359 rc = 1;
2360 goto closefs;
2361 }
2362 if (fs->super->s_feature_incompat &
2363 EXT4_FEATURE_INCOMPAT_FLEX_BG) {
2364 fputs(_("Changing the inode size not supported for "
2365 "filesystems with the flex_bg\n"
2366 "feature enabled.\n"),
2367 stderr);
2368 rc = 1;
2369 goto closefs;
2370 }
2371 /*
2372 * We want to update group descriptor also
2373 * with the new free inode count
2374 */
2375 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2376 if (resize_inode(fs, new_inode_size) == 0) {
2377 printf(_("Setting inode size %lu\n"),
2378 new_inode_size);
2379 } else {
2380 printf("%s", _("Failed to change inode size\n"));
2381 rc = 1;
2382 goto closefs;
2383 }
2384 }
2385
2386 if (l_flag)
2387 list_super(sb);
2388 if (stride_set) {
2389 sb->s_raid_stride = stride;
2390 ext2fs_mark_super_dirty(fs);
2391 printf(_("Setting stride size to %d\n"), stride);
2392 }
2393 if (stripe_width_set) {
2394 sb->s_raid_stripe_width = stripe_width;
2395 ext2fs_mark_super_dirty(fs);
2396 printf(_("Setting stripe width to %d\n"), stripe_width);
2397 }
2398 if (ext_mount_opts) {
2399 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
2400 sizeof(fs->super->s_mount_opts));
2401 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
2402 ext2fs_mark_super_dirty(fs);
2403 printf(_("Setting extended default mount options to '%s'\n"),
2404 ext_mount_opts);
2405 free(ext_mount_opts);
2406 }
2407 free(device_name);
2408 remove_error_table(&et_ext2_error_table);
2409
2410 closefs:
2411 if (rc) {
2412 ext2fs_mmp_stop(fs);
2413 exit(1);
2414 }
2415
2416 return (ext2fs_close_free(&fs) ? 1 : 0);
2417 }
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