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 <fcntl.h>
30 #include <grp.h>
31 #ifdef HAVE_GETOPT_H
32 #include <getopt.h>
33 #else
34 extern char *optarg;
35 extern int optind;
36 #endif
37 #include <pwd.h>
38 #include <stdio.h>
39 #ifdef HAVE_STDLIB_H
40 #include <stdlib.h>
41 #endif
42 #ifdef HAVE_STRINGS_H
43 #include <strings.h> /* for strcasecmp() */
44 #else
45 #define _BSD_SOURCE /* for inclusion of strcasecmp() via <string.h> */
46 #endif
47 #include <string.h>
48 #include <time.h>
49 #include <unistd.h>
50 #include <sys/types.h>
51 #include <libgen.h>
52 #include <limits.h>
53
54 #include "ext2fs/ext2_fs.h"
55 #include "ext2fs/ext2fs.h"
56 #include "et/com_err.h"
57 #include "uuid/uuid.h"
58 #include "e2p/e2p.h"
59 #include "jfs_user.h"
60 #include "util.h"
61 #include "blkid/blkid.h"
62 #include "quota/mkquota.h"
63
64 #include "../version.h"
65 #include "nls-enable.h"
66
67 #define QOPT_ENABLE (1)
68 #define QOPT_DISABLE (-1)
69
70 extern int ask_yn(const char *string, int def);
71
72 const char *program_name = "tune2fs";
73 char *device_name;
74 char *new_label, *new_last_mounted, *new_UUID;
75 char *io_options;
76 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
77 static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
78 static int I_flag;
79 static int clear_mmp;
80 static time_t last_check_time;
81 static int print_label;
82 static int max_mount_count, mount_count, mount_flags;
83 static unsigned long interval;
84 static blk64_t reserved_blocks;
85 static double reserved_ratio;
86 static unsigned long resgid, resuid;
87 static unsigned short errors;
88 static int open_flag;
89 static char *features_cmd;
90 static char *mntopts_cmd;
91 static int stride, stripe_width;
92 static int stride_set, stripe_width_set;
93 static char *extended_cmd;
94 static unsigned long new_inode_size;
95 static char *ext_mount_opts;
96 static int usrquota, grpquota;
97
98 int journal_size, journal_flags;
99 char *journal_device;
100
101 static struct list_head blk_move_list;
102
103 struct blk_move {
104 struct list_head list;
105 blk64_t old_loc;
106 blk64_t new_loc;
107 };
108
109
110 static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
111
112 #ifdef CONFIG_BUILD_FINDFS
113 void do_findfs(int argc, char **argv);
114 #endif
115
usage(void)116 static void usage(void)
117 {
118 fprintf(stderr,
119 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
120 "[-g group]\n"
121 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
122 "\t[-m reserved_blocks_percent] "
123 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n"
124 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
125 "[-L volume_label]\n"
126 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
127 #ifdef CONFIG_QUOTA
128 "\t[-Q quota_options]\n"
129 #endif
130 "\t[-E extended-option[,...]] [-T last_check_time] "
131 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
132 exit(1);
133 }
134
135 static __u32 ok_features[3] = {
136 /* Compat */
137 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
138 EXT2_FEATURE_COMPAT_DIR_INDEX,
139 /* Incompat */
140 EXT2_FEATURE_INCOMPAT_FILETYPE |
141 EXT3_FEATURE_INCOMPAT_EXTENTS |
142 EXT4_FEATURE_INCOMPAT_FLEX_BG |
143 EXT4_FEATURE_INCOMPAT_MMP,
144 /* R/O compat */
145 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
146 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
147 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
148 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
149 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
150 #ifdef CONFIG_QUOTA
151 EXT4_FEATURE_RO_COMPAT_QUOTA |
152 #endif
153 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
154 };
155
156 static __u32 clear_ok_features[3] = {
157 /* Compat */
158 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
159 EXT2_FEATURE_COMPAT_RESIZE_INODE |
160 EXT2_FEATURE_COMPAT_DIR_INDEX,
161 /* Incompat */
162 EXT2_FEATURE_INCOMPAT_FILETYPE |
163 EXT4_FEATURE_INCOMPAT_FLEX_BG |
164 EXT4_FEATURE_INCOMPAT_MMP,
165 /* R/O compat */
166 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
167 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
168 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
169 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
170 #ifdef CONFIG_QUOTA
171 EXT4_FEATURE_RO_COMPAT_QUOTA |
172 #endif
173 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
174 };
175
176 /*
177 * Remove an external journal from the filesystem
178 */
remove_journal_device(ext2_filsys fs)179 static int remove_journal_device(ext2_filsys fs)
180 {
181 char *journal_path;
182 ext2_filsys jfs;
183 char buf[1024];
184 journal_superblock_t *jsb;
185 int i, nr_users;
186 errcode_t retval;
187 int commit_remove_journal = 0;
188 io_manager io_ptr;
189
190 if (f_flag)
191 commit_remove_journal = 1; /* force removal even if error */
192
193 uuid_unparse(fs->super->s_journal_uuid, buf);
194 journal_path = blkid_get_devname(NULL, "UUID", buf);
195
196 if (!journal_path) {
197 journal_path =
198 ext2fs_find_block_device(fs->super->s_journal_dev);
199 if (!journal_path)
200 goto no_valid_journal;
201 }
202
203 #ifdef CONFIG_TESTIO_DEBUG
204 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
205 io_ptr = test_io_manager;
206 test_io_backing_manager = unix_io_manager;
207 } else
208 #endif
209 io_ptr = unix_io_manager;
210 retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
211 EXT2_FLAG_JOURNAL_DEV_OK, 0,
212 fs->blocksize, io_ptr, &jfs);
213 if (retval) {
214 com_err(program_name, retval, "%s",
215 _("while trying to open external journal"));
216 goto no_valid_journal;
217 }
218 if (!(jfs->super->s_feature_incompat &
219 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
220 fprintf(stderr, _("%s is not a journal device.\n"),
221 journal_path);
222 goto no_valid_journal;
223 }
224
225 /* Get the journal superblock */
226 if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) {
227 com_err(program_name, retval, "%s",
228 _("while reading journal superblock"));
229 goto no_valid_journal;
230 }
231
232 jsb = (journal_superblock_t *) buf;
233 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
234 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
235 fputs(_("Journal superblock not found!\n"), stderr);
236 goto no_valid_journal;
237 }
238
239 /* Find the filesystem UUID */
240 nr_users = ntohl(jsb->s_nr_users);
241 for (i = 0; i < nr_users; i++) {
242 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0)
243 break;
244 }
245 if (i >= nr_users) {
246 fputs(_("Filesystem's UUID not found on journal device.\n"),
247 stderr);
248 commit_remove_journal = 1;
249 goto no_valid_journal;
250 }
251 nr_users--;
252 for (i = 0; i < nr_users; i++)
253 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
254 jsb->s_nr_users = htonl(nr_users);
255
256 /* Write back the journal superblock */
257 if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) {
258 com_err(program_name, retval,
259 "while writing journal superblock.");
260 goto no_valid_journal;
261 }
262
263 commit_remove_journal = 1;
264
265 no_valid_journal:
266 if (commit_remove_journal == 0) {
267 fputs(_("Cannot locate journal device. It was NOT removed\n"
268 "Use -f option to remove missing journal device.\n"),
269 stderr);
270 return 1;
271 }
272 fs->super->s_journal_dev = 0;
273 uuid_clear(fs->super->s_journal_uuid);
274 ext2fs_mark_super_dirty(fs);
275 fputs(_("Journal removed\n"), stdout);
276 free(journal_path);
277
278 return 0;
279 }
280
281 /* Helper function for remove_journal_inode */
release_blocks_proc(ext2_filsys fs,blk64_t * blocknr,e2_blkcnt_t blockcnt EXT2FS_ATTR ((unused)),blk64_t ref_block EXT2FS_ATTR ((unused)),int ref_offset EXT2FS_ATTR ((unused)),void * private EXT2FS_ATTR ((unused)))282 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
283 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
284 blk64_t ref_block EXT2FS_ATTR((unused)),
285 int ref_offset EXT2FS_ATTR((unused)),
286 void *private EXT2FS_ATTR((unused)))
287 {
288 blk64_t block;
289 int group;
290
291 block = *blocknr;
292 ext2fs_unmark_block_bitmap2(fs->block_map, block);
293 group = ext2fs_group_of_blk2(fs, block);
294 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
295 ext2fs_group_desc_csum_set(fs, group);
296 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
297 return 0;
298 }
299
300 /*
301 * Remove the journal inode from the filesystem
302 */
remove_journal_inode(ext2_filsys fs)303 static errcode_t remove_journal_inode(ext2_filsys fs)
304 {
305 struct ext2_inode inode;
306 errcode_t retval;
307 ino_t ino = fs->super->s_journal_inum;
308
309 retval = ext2fs_read_inode(fs, ino, &inode);
310 if (retval) {
311 com_err(program_name, retval, "%s",
312 _("while reading journal inode"));
313 return retval;
314 }
315 if (ino == EXT2_JOURNAL_INO) {
316 retval = ext2fs_read_bitmaps(fs);
317 if (retval) {
318 com_err(program_name, retval, "%s",
319 _("while reading bitmaps"));
320 return retval;
321 }
322 retval = ext2fs_block_iterate3(fs, ino,
323 BLOCK_FLAG_READ_ONLY, NULL,
324 release_blocks_proc, NULL);
325 if (retval) {
326 com_err(program_name, retval, "%s",
327 _("while clearing journal inode"));
328 return retval;
329 }
330 memset(&inode, 0, sizeof(inode));
331 ext2fs_mark_bb_dirty(fs);
332 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
333 } else
334 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
335 retval = ext2fs_write_inode(fs, ino, &inode);
336 if (retval) {
337 com_err(program_name, retval, "%s",
338 _("while writing journal inode"));
339 return retval;
340 }
341 fs->super->s_journal_inum = 0;
342 ext2fs_mark_super_dirty(fs);
343
344 return 0;
345 }
346
347 /*
348 * Update the default mount options
349 */
update_mntopts(ext2_filsys fs,char * mntopts)350 static int update_mntopts(ext2_filsys fs, char *mntopts)
351 {
352 struct ext2_super_block *sb = fs->super;
353
354 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
355 fprintf(stderr, _("Invalid mount option set: %s\n"),
356 mntopts);
357 return 1;
358 }
359 ext2fs_mark_super_dirty(fs);
360
361 return 0;
362 }
363
check_fsck_needed(ext2_filsys fs)364 static int check_fsck_needed(ext2_filsys fs)
365 {
366 if (fs->super->s_state & EXT2_VALID_FS)
367 return 0;
368 printf("\n%s\n", _(please_fsck));
369 if (mount_flags & EXT2_MF_READONLY)
370 printf(_("(and reboot afterwards!)\n"));
371 return 1;
372 }
373
request_fsck_afterwards(ext2_filsys fs)374 static void request_fsck_afterwards(ext2_filsys fs)
375 {
376 static int requested = 0;
377
378 if (requested++)
379 return;
380 fs->super->s_state &= ~EXT2_VALID_FS;
381 printf("\n%s\n", _(please_fsck));
382 if (mount_flags & EXT2_MF_READONLY)
383 printf("%s", _("(and reboot afterwards!)\n"));
384 }
385
386 /*
387 * Update the feature set as provided by the user.
388 */
update_feature_set(ext2_filsys fs,char * features)389 static int update_feature_set(ext2_filsys fs, char *features)
390 {
391 struct ext2_super_block *sb = fs->super;
392 struct ext2_group_desc *gd;
393 __u32 old_features[3];
394 dgrp_t i;
395 int type_err;
396 unsigned int mask_err;
397
398 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
399 ((&sb->s_feature_compat)[(type)] & (mask)))
400 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
401 !((&sb->s_feature_compat)[(type)] & (mask)))
402 #define FEATURE_CHANGED(type, mask) ((mask) & \
403 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
404
405 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
406 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
407 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
408
409 if (e2p_edit_feature2(features, &sb->s_feature_compat,
410 ok_features, clear_ok_features,
411 &type_err, &mask_err)) {
412 if (!mask_err)
413 fprintf(stderr,
414 _("Invalid filesystem option set: %s\n"),
415 features);
416 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
417 fprintf(stderr, _("Clearing filesystem feature '%s' "
418 "not supported.\n"),
419 e2p_feature2string(type_err &
420 E2P_FEATURE_TYPE_MASK,
421 mask_err));
422 else
423 fprintf(stderr, _("Setting filesystem feature '%s' "
424 "not supported.\n"),
425 e2p_feature2string(type_err, mask_err));
426 return 1;
427 }
428
429 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
430 if ((mount_flags & EXT2_MF_MOUNTED) &&
431 !(mount_flags & EXT2_MF_READONLY)) {
432 fputs(_("The has_journal feature may only be "
433 "cleared when the filesystem is\n"
434 "unmounted or mounted "
435 "read-only.\n"), stderr);
436 return 1;
437 }
438 if (sb->s_feature_incompat &
439 EXT3_FEATURE_INCOMPAT_RECOVER) {
440 fputs(_("The needs_recovery flag is set. "
441 "Please run e2fsck before clearing\n"
442 "the has_journal flag.\n"), stderr);
443 return 1;
444 }
445 if (sb->s_journal_inum) {
446 if (remove_journal_inode(fs))
447 return 1;
448 }
449 if (sb->s_journal_dev) {
450 if (remove_journal_device(fs))
451 return 1;
452 }
453 }
454 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
455 int error;
456
457 if ((mount_flags & EXT2_MF_MOUNTED) ||
458 (mount_flags & EXT2_MF_READONLY)) {
459 fputs(_("The multiple mount protection feature can't\n"
460 "be set if the filesystem is mounted or\n"
461 "read-only.\n"), stderr);
462 return 1;
463 }
464
465 error = ext2fs_mmp_init(fs);
466 if (error) {
467 fputs(_("\nError while enabling multiple mount "
468 "protection feature."), stderr);
469 return 1;
470 }
471
472 /*
473 * We want to update group desc with the new free blocks count
474 */
475 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
476
477 printf(_("Multiple mount protection has been enabled "
478 "with update interval %ds.\n"),
479 sb->s_mmp_update_interval);
480 }
481
482 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
483 int error;
484
485 if (mount_flags & EXT2_MF_READONLY) {
486 fputs(_("The multiple mount protection feature cannot\n"
487 "be disabled if the filesystem is readonly.\n"),
488 stderr);
489 return 1;
490 }
491
492 error = ext2fs_read_bitmaps(fs);
493 if (error) {
494 fputs(_("Error while reading bitmaps\n"), stderr);
495 return 1;
496 }
497
498 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
499 if (error) {
500 struct mmp_struct *mmp_cmp = fs->mmp_cmp;
501
502 if (error == EXT2_ET_MMP_MAGIC_INVALID)
503 printf(_("Magic number in MMP block does not "
504 "match. expected: %x, actual: %x\n"),
505 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
506 else
507 com_err(program_name, error, "%s",
508 _("while reading MMP block."));
509 goto mmp_error;
510 }
511
512 /* We need to force out the group descriptors as well */
513 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
514 ext2fs_block_alloc_stats2(fs, sb->s_mmp_block, -1);
515 mmp_error:
516 sb->s_mmp_block = 0;
517 sb->s_mmp_update_interval = 0;
518 }
519
520 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
521 /*
522 * If adding a journal flag, let the create journal
523 * code below handle setting the flag and creating the
524 * journal. We supply a default size if necessary.
525 */
526 if (!journal_size)
527 journal_size = -1;
528 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
529 }
530
531 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
532 if (!sb->s_def_hash_version)
533 sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
534 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
535 uuid_generate((unsigned char *) sb->s_hash_seed);
536 }
537
538 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
539 if (ext2fs_check_desc(fs)) {
540 fputs(_("Clearing the flex_bg flag would "
541 "cause the the filesystem to be\n"
542 "inconsistent.\n"), stderr);
543 return 1;
544 }
545 }
546
547 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
548 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
549 if ((mount_flags & EXT2_MF_MOUNTED) &&
550 !(mount_flags & EXT2_MF_READONLY)) {
551 fputs(_("The huge_file feature may only be "
552 "cleared when the filesystem is\n"
553 "unmounted or mounted "
554 "read-only.\n"), stderr);
555 return 1;
556 }
557 }
558
559 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
560 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
561 for (i = 0; i < fs->group_desc_count; i++) {
562 gd = ext2fs_group_desc(fs, fs->group_desc, i);
563 gd->bg_itable_unused = 0;
564 gd->bg_flags = EXT2_BG_INODE_ZEROED;
565 ext2fs_group_desc_csum_set(fs, i);
566 }
567 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
568 }
569
570 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
571 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
572 for (i = 0; i < fs->group_desc_count; i++) {
573 gd = ext2fs_group_desc(fs, fs->group_desc, i);
574 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) {
575 /*
576 * XXX what we really should do is zap
577 * uninitialized inode tables instead.
578 */
579 request_fsck_afterwards(fs);
580 break;
581 }
582 gd->bg_itable_unused = 0;
583 gd->bg_flags = 0;
584 gd->bg_checksum = 0;
585 }
586 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
587 }
588
589 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
590 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
591 /*
592 * Set the Q_flag here and handle the quota options in the code
593 * below.
594 */
595 if (!Q_flag) {
596 Q_flag = 1;
597 /* Enable both user quota and group quota by default */
598 usrquota = QOPT_ENABLE;
599 grpquota = QOPT_ENABLE;
600 }
601 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
602 }
603
604 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
605 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
606 /*
607 * Set the Q_flag here and handle the quota options in the code
608 * below.
609 */
610 if (Q_flag)
611 fputs(_("\nWarning: '^quota' option overrides '-Q'"
612 "arguments.\n"), stderr);
613 Q_flag = 1;
614 /* Disable both user quota and group quota by default */
615 usrquota = QOPT_DISABLE;
616 grpquota = QOPT_DISABLE;
617 }
618
619 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
620 (sb->s_feature_compat || sb->s_feature_ro_compat ||
621 sb->s_feature_incompat))
622 ext2fs_update_dynamic_rev(fs);
623
624 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
625 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
626 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
627 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
628 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
629 EXT2_FEATURE_INCOMPAT_FILETYPE) ||
630 FEATURE_CHANGED(E2P_FEATURE_COMPAT,
631 EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
632 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
633 EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
634 request_fsck_afterwards(fs);
635
636 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
637 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
638 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
639 ext2fs_mark_super_dirty(fs);
640
641 return 0;
642 }
643
644 /*
645 * Add a journal to the filesystem.
646 */
add_journal(ext2_filsys fs)647 static int add_journal(ext2_filsys fs)
648 {
649 unsigned long journal_blocks;
650 errcode_t retval;
651 ext2_filsys jfs;
652 io_manager io_ptr;
653
654 if (fs->super->s_feature_compat &
655 EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
656 fputs(_("The filesystem already has a journal.\n"), stderr);
657 goto err;
658 }
659 if (journal_device) {
660 check_plausibility(journal_device);
661 check_mount(journal_device, 0, _("journal"));
662 #ifdef CONFIG_TESTIO_DEBUG
663 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
664 io_ptr = test_io_manager;
665 test_io_backing_manager = unix_io_manager;
666 } else
667 #endif
668 io_ptr = unix_io_manager;
669 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
670 EXT2_FLAG_JOURNAL_DEV_OK, 0,
671 fs->blocksize, io_ptr, &jfs);
672 if (retval) {
673 com_err(program_name, retval,
674 _("\n\twhile trying to open journal on %s\n"),
675 journal_device);
676 goto err;
677 }
678 printf(_("Creating journal on device %s: "),
679 journal_device);
680 fflush(stdout);
681
682 retval = ext2fs_add_journal_device(fs, jfs);
683 ext2fs_close(jfs);
684 if (retval) {
685 com_err(program_name, retval,
686 _("while adding filesystem to journal on %s"),
687 journal_device);
688 goto err;
689 }
690 fputs(_("done\n"), stdout);
691 } else if (journal_size) {
692 fputs(_("Creating journal inode: "), stdout);
693 fflush(stdout);
694 journal_blocks = figure_journal_size(journal_size, fs);
695
696 retval = ext2fs_add_journal_inode(fs, journal_blocks,
697 journal_flags);
698 if (retval) {
699 fprintf(stderr, "\n");
700 com_err(program_name, retval, "%s",
701 _("\n\twhile trying to create journal file"));
702 return retval;
703 } else
704 fputs(_("done\n"), stdout);
705 /*
706 * If the filesystem wasn't mounted, we need to force
707 * the block group descriptors out.
708 */
709 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
710 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
711 }
712 print_check_message(fs->super->s_max_mnt_count,
713 fs->super->s_checkinterval);
714 return 0;
715
716 err:
717 free(journal_device);
718 return 1;
719 }
720
handle_quota_options(ext2_filsys fs)721 static void handle_quota_options(ext2_filsys fs)
722 {
723 quota_ctx_t qctx;
724 ext2_ino_t qf_ino;
725
726 if (!usrquota && !grpquota)
727 /* Nothing to do. */
728 return;
729
730 quota_init_context(&qctx, fs, -1);
731
732 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE)
733 quota_compute_usage(qctx);
734
735 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
736 if ((qf_ino = quota_file_exists(fs, USRQUOTA,
737 QFMT_VFS_V1)) > 0)
738 quota_update_limits(qctx, qf_ino, USRQUOTA);
739 quota_write_inode(qctx, USRQUOTA);
740 } else if (usrquota == QOPT_DISABLE) {
741 quota_remove_inode(fs, USRQUOTA);
742 }
743
744 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) {
745 if ((qf_ino = quota_file_exists(fs, GRPQUOTA,
746 QFMT_VFS_V1)) > 0)
747 quota_update_limits(qctx, qf_ino, GRPQUOTA);
748 quota_write_inode(qctx, GRPQUOTA);
749 } else if (grpquota == QOPT_DISABLE) {
750 quota_remove_inode(fs, GRPQUOTA);
751 }
752
753 quota_release_context(&qctx);
754
755 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
756 fprintf(stderr, "%s", _("\nWarning: the quota feature is still "
757 "under development\n"
758 "See https://ext4.wiki.kernel.org/"
759 "index.php/Quota for more information\n\n"));
760 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
761 ext2fs_mark_super_dirty(fs);
762 } else if (!fs->super->s_usr_quota_inum &&
763 !fs->super->s_grp_quota_inum) {
764 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
765 ext2fs_mark_super_dirty(fs);
766 }
767
768 return;
769 }
770
771 #ifdef CONFIG_QUOTA
parse_quota_opts(const char * opts)772 static void parse_quota_opts(const char *opts)
773 {
774 char *buf, *token, *next, *p;
775 int len;
776
777 len = strlen(opts);
778 buf = malloc(len+1);
779 if (!buf) {
780 fputs(_("Couldn't allocate memory to parse quota "
781 "options!\n"), stderr);
782 exit(1);
783 }
784 strcpy(buf, opts);
785 for (token = buf; token && *token; token = next) {
786 p = strchr(token, ',');
787 next = 0;
788 if (p) {
789 *p = 0;
790 next = p+1;
791 }
792
793 if (strcmp(token, "usrquota") == 0) {
794 usrquota = QOPT_ENABLE;
795 } else if (strcmp(token, "^usrquota") == 0) {
796 usrquota = QOPT_DISABLE;
797 } else if (strcmp(token, "grpquota") == 0) {
798 grpquota = QOPT_ENABLE;
799 } else if (strcmp(token, "^grpquota") == 0) {
800 grpquota = QOPT_DISABLE;
801 } else {
802 fputs(_("\nBad quota options specified.\n\n"
803 "Following valid quota options are available "
804 "(pass by separating with comma):\n"
805 "\t[^]usrquota\n"
806 "\t[^]grpquota\n"
807 "\n\n"), stderr);
808 free(buf);
809 exit(1);
810 }
811 }
812 free(buf);
813 }
814 #endif
815
parse_e2label_options(int argc,char ** argv)816 static void parse_e2label_options(int argc, char ** argv)
817 {
818 if ((argc < 2) || (argc > 3)) {
819 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
820 exit(1);
821 }
822 io_options = strchr(argv[1], '?');
823 if (io_options)
824 *io_options++ = 0;
825 device_name = blkid_get_devname(NULL, argv[1], NULL);
826 if (!device_name) {
827 com_err("e2label", 0, _("Unable to resolve '%s'"),
828 argv[1]);
829 exit(1);
830 }
831 open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
832 if (argc == 3) {
833 open_flag |= EXT2_FLAG_RW;
834 L_flag = 1;
835 new_label = argv[2];
836 } else
837 print_label++;
838 }
839
parse_time(char * str)840 static time_t parse_time(char *str)
841 {
842 struct tm ts;
843
844 if (strcmp(str, "now") == 0) {
845 return (time(0));
846 }
847 memset(&ts, 0, sizeof(ts));
848 #ifdef HAVE_STRPTIME
849 strptime(str, "%Y%m%d%H%M%S", &ts);
850 #else
851 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
852 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
853 ts.tm_year -= 1900;
854 ts.tm_mon -= 1;
855 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
856 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
857 ts.tm_min > 59 || ts.tm_sec > 61)
858 ts.tm_mday = 0;
859 #endif
860 if (ts.tm_mday == 0) {
861 com_err(program_name, 0,
862 _("Couldn't parse date/time specifier: %s"),
863 str);
864 usage();
865 }
866 ts.tm_isdst = -1;
867 return (mktime(&ts));
868 }
869
parse_tune2fs_options(int argc,char ** argv)870 static void parse_tune2fs_options(int argc, char **argv)
871 {
872 int c;
873 char *tmp;
874 struct group *gr;
875 struct passwd *pw;
876 char optstring[100] = "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:T:U:";
877
878 #ifdef CONFIG_QUOTA
879 strcat(optstring, "Q:");
880 #endif
881 open_flag = 0;
882
883 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
884 while ((c = getopt(argc, argv, optstring)) != EOF)
885 switch (c) {
886 case 'c':
887 max_mount_count = strtol(optarg, &tmp, 0);
888 if (*tmp || max_mount_count > 16000) {
889 com_err(program_name, 0,
890 _("bad mounts count - %s"),
891 optarg);
892 usage();
893 }
894 if (max_mount_count == 0)
895 max_mount_count = -1;
896 c_flag = 1;
897 open_flag = EXT2_FLAG_RW;
898 break;
899 case 'C':
900 mount_count = strtoul(optarg, &tmp, 0);
901 if (*tmp || mount_count > 16000) {
902 com_err(program_name, 0,
903 _("bad mounts count - %s"),
904 optarg);
905 usage();
906 }
907 C_flag = 1;
908 open_flag = EXT2_FLAG_RW;
909 break;
910 case 'e':
911 if (strcmp(optarg, "continue") == 0)
912 errors = EXT2_ERRORS_CONTINUE;
913 else if (strcmp(optarg, "remount-ro") == 0)
914 errors = EXT2_ERRORS_RO;
915 else if (strcmp(optarg, "panic") == 0)
916 errors = EXT2_ERRORS_PANIC;
917 else {
918 com_err(program_name, 0,
919 _("bad error behavior - %s"),
920 optarg);
921 usage();
922 }
923 e_flag = 1;
924 open_flag = EXT2_FLAG_RW;
925 break;
926 case 'E':
927 extended_cmd = optarg;
928 open_flag |= EXT2_FLAG_RW;
929 break;
930 case 'f': /* Force */
931 f_flag = 1;
932 break;
933 case 'g':
934 resgid = strtoul(optarg, &tmp, 0);
935 if (*tmp) {
936 gr = getgrnam(optarg);
937 if (gr == NULL)
938 tmp = optarg;
939 else {
940 resgid = gr->gr_gid;
941 *tmp = 0;
942 }
943 }
944 if (*tmp) {
945 com_err(program_name, 0,
946 _("bad gid/group name - %s"),
947 optarg);
948 usage();
949 }
950 g_flag = 1;
951 open_flag = EXT2_FLAG_RW;
952 break;
953 case 'i':
954 interval = strtoul(optarg, &tmp, 0);
955 switch (*tmp) {
956 case 's':
957 tmp++;
958 break;
959 case '\0':
960 case 'd':
961 case 'D': /* days */
962 interval *= 86400;
963 if (*tmp != '\0')
964 tmp++;
965 break;
966 case 'm':
967 case 'M': /* months! */
968 interval *= 86400 * 30;
969 tmp++;
970 break;
971 case 'w':
972 case 'W': /* weeks */
973 interval *= 86400 * 7;
974 tmp++;
975 break;
976 }
977 if (*tmp) {
978 com_err(program_name, 0,
979 _("bad interval - %s"), optarg);
980 usage();
981 }
982 i_flag = 1;
983 open_flag = EXT2_FLAG_RW;
984 break;
985 case 'j':
986 if (!journal_size)
987 journal_size = -1;
988 open_flag = EXT2_FLAG_RW;
989 break;
990 case 'J':
991 parse_journal_opts(optarg);
992 open_flag = EXT2_FLAG_RW;
993 break;
994 case 'l':
995 l_flag = 1;
996 break;
997 case 'L':
998 new_label = optarg;
999 L_flag = 1;
1000 open_flag |= EXT2_FLAG_RW |
1001 EXT2_FLAG_JOURNAL_DEV_OK;
1002 break;
1003 case 'm':
1004 reserved_ratio = strtod(optarg, &tmp);
1005 if (*tmp || reserved_ratio > 50 ||
1006 reserved_ratio < 0) {
1007 com_err(program_name, 0,
1008 _("bad reserved block ratio - %s"),
1009 optarg);
1010 usage();
1011 }
1012 m_flag = 1;
1013 open_flag = EXT2_FLAG_RW;
1014 break;
1015 case 'M':
1016 new_last_mounted = optarg;
1017 M_flag = 1;
1018 open_flag = EXT2_FLAG_RW;
1019 break;
1020 case 'o':
1021 if (mntopts_cmd) {
1022 com_err(program_name, 0, "%s",
1023 _("-o may only be specified once"));
1024 usage();
1025 }
1026 mntopts_cmd = optarg;
1027 open_flag = EXT2_FLAG_RW;
1028 break;
1029 case 'O':
1030 if (features_cmd) {
1031 com_err(program_name, 0, "%s",
1032 _("-O may only be specified once"));
1033 usage();
1034 }
1035 features_cmd = optarg;
1036 open_flag = EXT2_FLAG_RW;
1037 break;
1038 #ifdef CONFIG_QUOTA
1039 case 'Q':
1040 Q_flag = 1;
1041 parse_quota_opts(optarg);
1042 open_flag = EXT2_FLAG_RW;
1043 break;
1044 #endif
1045 case 'r':
1046 reserved_blocks = strtoul(optarg, &tmp, 0);
1047 if (*tmp) {
1048 com_err(program_name, 0,
1049 _("bad reserved blocks count - %s"),
1050 optarg);
1051 usage();
1052 }
1053 r_flag = 1;
1054 open_flag = EXT2_FLAG_RW;
1055 break;
1056 case 's': /* Deprecated */
1057 s_flag = atoi(optarg);
1058 open_flag = EXT2_FLAG_RW;
1059 break;
1060 case 'T':
1061 T_flag = 1;
1062 last_check_time = parse_time(optarg);
1063 open_flag = EXT2_FLAG_RW;
1064 break;
1065 case 'u':
1066 resuid = strtoul(optarg, &tmp, 0);
1067 if (*tmp) {
1068 pw = getpwnam(optarg);
1069 if (pw == NULL)
1070 tmp = optarg;
1071 else {
1072 resuid = pw->pw_uid;
1073 *tmp = 0;
1074 }
1075 }
1076 if (*tmp) {
1077 com_err(program_name, 0,
1078 _("bad uid/user name - %s"),
1079 optarg);
1080 usage();
1081 }
1082 u_flag = 1;
1083 open_flag = EXT2_FLAG_RW;
1084 break;
1085 case 'U':
1086 new_UUID = optarg;
1087 U_flag = 1;
1088 open_flag = EXT2_FLAG_RW |
1089 EXT2_FLAG_JOURNAL_DEV_OK;
1090 break;
1091 case 'I':
1092 new_inode_size = strtoul(optarg, &tmp, 0);
1093 if (*tmp) {
1094 com_err(program_name, 0,
1095 _("bad inode size - %s"),
1096 optarg);
1097 usage();
1098 }
1099 if (!((new_inode_size &
1100 (new_inode_size - 1)) == 0)) {
1101 com_err(program_name, 0,
1102 _("Inode size must be a "
1103 "power of two- %s"),
1104 optarg);
1105 usage();
1106 }
1107 open_flag = EXT2_FLAG_RW;
1108 I_flag = 1;
1109 break;
1110 default:
1111 usage();
1112 }
1113 if (optind < argc - 1 || optind == argc)
1114 usage();
1115 if (!open_flag && !l_flag)
1116 usage();
1117 io_options = strchr(argv[optind], '?');
1118 if (io_options)
1119 *io_options++ = 0;
1120 device_name = blkid_get_devname(NULL, argv[optind], NULL);
1121 if (!device_name) {
1122 com_err(program_name, 0, _("Unable to resolve '%s'"),
1123 argv[optind]);
1124 exit(1);
1125 }
1126 }
1127
1128 #ifdef CONFIG_BUILD_FINDFS
do_findfs(int argc,char ** argv)1129 void do_findfs(int argc, char **argv)
1130 {
1131 char *dev;
1132
1133 if ((argc != 2) ||
1134 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
1135 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1136 exit(2);
1137 }
1138 dev = blkid_get_devname(NULL, argv[1], NULL);
1139 if (!dev) {
1140 com_err("findfs", 0, _("Unable to resolve '%s'"),
1141 argv[1]);
1142 exit(1);
1143 }
1144 puts(dev);
1145 exit(0);
1146 }
1147 #endif
1148
parse_extended_opts(ext2_filsys fs,const char * opts)1149 static int parse_extended_opts(ext2_filsys fs, const char *opts)
1150 {
1151 char *buf, *token, *next, *p, *arg;
1152 int len, hash_alg;
1153 int r_usage = 0;
1154
1155 len = strlen(opts);
1156 buf = malloc(len+1);
1157 if (!buf) {
1158 fprintf(stderr, "%s",
1159 _("Couldn't allocate memory to parse options!\n"));
1160 return 1;
1161 }
1162 strcpy(buf, opts);
1163 for (token = buf; token && *token; token = next) {
1164 p = strchr(token, ',');
1165 next = 0;
1166 if (p) {
1167 *p = 0;
1168 next = p+1;
1169 }
1170 arg = strchr(token, '=');
1171 if (arg) {
1172 *arg = 0;
1173 arg++;
1174 }
1175 if (strcmp(token, "clear-mmp") == 0 ||
1176 strcmp(token, "clear_mmp") == 0) {
1177 clear_mmp = 1;
1178 } else if (strcmp(token, "mmp_update_interval") == 0) {
1179 unsigned long intv;
1180 if (!arg) {
1181 r_usage++;
1182 continue;
1183 }
1184 intv = strtoul(arg, &p, 0);
1185 if (*p) {
1186 fprintf(stderr,
1187 _("Invalid mmp_update_interval: %s\n"),
1188 arg);
1189 r_usage++;
1190 continue;
1191 }
1192 if (intv == 0) {
1193 intv = EXT4_MMP_UPDATE_INTERVAL;
1194 } else if (intv > EXT4_MMP_MAX_UPDATE_INTERVAL) {
1195 fprintf(stderr,
1196 _("mmp_update_interval too big: %lu\n"),
1197 intv);
1198 r_usage++;
1199 continue;
1200 }
1201 printf(P_("Setting multiple mount protection update "
1202 "interval to %lu second\n",
1203 "Setting multiple mount protection update "
1204 "interval to %lu seconds\n", intv),
1205 intv);
1206 fs->super->s_mmp_update_interval = intv;
1207 ext2fs_mark_super_dirty(fs);
1208 } else if (!strcmp(token, "test_fs")) {
1209 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1210 printf("Setting test filesystem flag\n");
1211 ext2fs_mark_super_dirty(fs);
1212 } else if (!strcmp(token, "^test_fs")) {
1213 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
1214 printf("Clearing test filesystem flag\n");
1215 ext2fs_mark_super_dirty(fs);
1216 } else if (strcmp(token, "stride") == 0) {
1217 if (!arg) {
1218 r_usage++;
1219 continue;
1220 }
1221 stride = strtoul(arg, &p, 0);
1222 if (*p) {
1223 fprintf(stderr,
1224 _("Invalid RAID stride: %s\n"),
1225 arg);
1226 r_usage++;
1227 continue;
1228 }
1229 stride_set = 1;
1230 } else if (strcmp(token, "stripe-width") == 0 ||
1231 strcmp(token, "stripe_width") == 0) {
1232 if (!arg) {
1233 r_usage++;
1234 continue;
1235 }
1236 stripe_width = strtoul(arg, &p, 0);
1237 if (*p) {
1238 fprintf(stderr,
1239 _("Invalid RAID stripe-width: %s\n"),
1240 arg);
1241 r_usage++;
1242 continue;
1243 }
1244 stripe_width_set = 1;
1245 } else if (strcmp(token, "hash_alg") == 0 ||
1246 strcmp(token, "hash-alg") == 0) {
1247 if (!arg) {
1248 r_usage++;
1249 continue;
1250 }
1251 hash_alg = e2p_string2hash(arg);
1252 if (hash_alg < 0) {
1253 fprintf(stderr,
1254 _("Invalid hash algorithm: %s\n"),
1255 arg);
1256 r_usage++;
1257 continue;
1258 }
1259 fs->super->s_def_hash_version = hash_alg;
1260 printf(_("Setting default hash algorithm "
1261 "to %s (%d)\n"),
1262 arg, hash_alg);
1263 ext2fs_mark_super_dirty(fs);
1264 } else if (!strcmp(token, "mount_opts")) {
1265 if (!arg) {
1266 r_usage++;
1267 continue;
1268 }
1269 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
1270 fprintf(stderr,
1271 "Extended mount options too long\n");
1272 continue;
1273 }
1274 ext_mount_opts = strdup(arg);
1275 } else
1276 r_usage++;
1277 }
1278 if (r_usage) {
1279 fprintf(stderr, "%s", _("\nBad options specified.\n\n"
1280 "Extended options are separated by commas, "
1281 "and may take an argument which\n"
1282 "\tis set off by an equals ('=') sign.\n\n"
1283 "Valid extended options are:\n"
1284 "\tclear_mmp\n"
1285 "\thash_alg=<hash algorithm>\n"
1286 "\tmount_opts=<extended default mount options>\n"
1287 "\tstride=<RAID per-disk chunk size in blocks>\n"
1288 "\tstripe_width=<RAID stride*data disks in blocks>\n"
1289 "\ttest_fs\n"
1290 "\t^test_fs\n"));
1291 free(buf);
1292 return 1;
1293 }
1294 free(buf);
1295
1296 return 0;
1297 }
1298
1299 /*
1300 * Fill in the block bitmap bmap with the information regarding the
1301 * blocks to be moved
1302 */
get_move_bitmaps(ext2_filsys fs,int new_ino_blks_per_grp,ext2fs_block_bitmap bmap)1303 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
1304 ext2fs_block_bitmap bmap)
1305 {
1306 dgrp_t i;
1307 int retval;
1308 ext2_badblocks_list bb_list = 0;
1309 blk64_t j, needed_blocks = 0;
1310 blk64_t start_blk, end_blk;
1311
1312 retval = ext2fs_read_bb_inode(fs, &bb_list);
1313 if (retval)
1314 return retval;
1315
1316 for (i = 0; i < fs->group_desc_count; i++) {
1317 start_blk = ext2fs_inode_table_loc(fs, i) +
1318 fs->inode_blocks_per_group;
1319
1320 end_blk = ext2fs_inode_table_loc(fs, i) +
1321 new_ino_blks_per_grp;
1322
1323 for (j = start_blk; j < end_blk; j++) {
1324 if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
1325 /*
1326 * IF the block is a bad block we fail
1327 */
1328 if (ext2fs_badblocks_list_test(bb_list, j)) {
1329 ext2fs_badblocks_list_free(bb_list);
1330 return ENOSPC;
1331 }
1332
1333 ext2fs_mark_block_bitmap2(bmap, j);
1334 } else {
1335 /*
1336 * We are going to use this block for
1337 * inode table. So mark them used.
1338 */
1339 ext2fs_mark_block_bitmap2(fs->block_map, j);
1340 }
1341 }
1342 needed_blocks += end_blk - start_blk;
1343 }
1344
1345 ext2fs_badblocks_list_free(bb_list);
1346 if (needed_blocks > ext2fs_free_blocks_count(fs->super))
1347 return ENOSPC;
1348
1349 return 0;
1350 }
1351
ext2fs_is_meta_block(ext2_filsys fs,blk64_t blk)1352 static int ext2fs_is_meta_block(ext2_filsys fs, blk64_t blk)
1353 {
1354 dgrp_t group;
1355 group = ext2fs_group_of_blk2(fs, blk);
1356 if (ext2fs_block_bitmap_loc(fs, group) == blk)
1357 return 1;
1358 if (ext2fs_inode_bitmap_loc(fs, group) == blk)
1359 return 1;
1360 return 0;
1361 }
1362
ext2fs_is_block_in_group(ext2_filsys fs,dgrp_t group,blk64_t blk)1363 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk64_t blk)
1364 {
1365 blk64_t start_blk, end_blk;
1366 start_blk = fs->super->s_first_data_block +
1367 EXT2_BLOCKS_PER_GROUP(fs->super) * group;
1368 /*
1369 * We cannot get new block beyond end_blk for for the last block group
1370 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
1371 */
1372 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
1373 if (blk >= start_blk && blk <= end_blk)
1374 return 1;
1375 return 0;
1376 }
1377
move_block(ext2_filsys fs,ext2fs_block_bitmap bmap)1378 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
1379 {
1380
1381 char *buf;
1382 dgrp_t group = 0;
1383 errcode_t retval;
1384 int meta_data = 0;
1385 blk64_t blk, new_blk, goal;
1386 struct blk_move *bmv;
1387
1388 retval = ext2fs_get_mem(fs->blocksize, &buf);
1389 if (retval)
1390 return retval;
1391
1392 for (new_blk = blk = fs->super->s_first_data_block;
1393 blk < ext2fs_blocks_count(fs->super); blk++) {
1394 if (!ext2fs_test_block_bitmap2(bmap, blk))
1395 continue;
1396
1397 if (ext2fs_is_meta_block(fs, blk)) {
1398 /*
1399 * If the block is mapping a fs meta data block
1400 * like group desc/block bitmap/inode bitmap. We
1401 * should find a block in the same group and fix
1402 * the respective fs metadata pointers. Otherwise
1403 * fail
1404 */
1405 group = ext2fs_group_of_blk2(fs, blk);
1406 goal = ext2fs_group_first_block2(fs, group);
1407 meta_data = 1;
1408
1409 } else {
1410 goal = new_blk;
1411 }
1412 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
1413 if (retval)
1414 goto err_out;
1415
1416 /* new fs meta data block should be in the same group */
1417 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
1418 retval = ENOSPC;
1419 goto err_out;
1420 }
1421
1422 /* Mark this block as allocated */
1423 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
1424
1425 /* Add it to block move list */
1426 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
1427 if (retval)
1428 goto err_out;
1429
1430 bmv->old_loc = blk;
1431 bmv->new_loc = new_blk;
1432
1433 list_add(&(bmv->list), &blk_move_list);
1434
1435 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
1436 if (retval)
1437 goto err_out;
1438
1439 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
1440 if (retval)
1441 goto err_out;
1442 }
1443
1444 err_out:
1445 ext2fs_free_mem(&buf);
1446 return retval;
1447 }
1448
translate_block(blk64_t blk)1449 static blk64_t translate_block(blk64_t blk)
1450 {
1451 struct list_head *entry;
1452 struct blk_move *bmv;
1453
1454 list_for_each(entry, &blk_move_list) {
1455 bmv = list_entry(entry, struct blk_move, list);
1456 if (bmv->old_loc == blk)
1457 return bmv->new_loc;
1458 }
1459
1460 return 0;
1461 }
1462
process_block(ext2_filsys fs EXT2FS_ATTR ((unused)),blk64_t * block_nr,e2_blkcnt_t blockcnt EXT2FS_ATTR ((unused)),blk64_t ref_block EXT2FS_ATTR ((unused)),int ref_offset EXT2FS_ATTR ((unused)),void * priv_data)1463 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
1464 blk64_t *block_nr,
1465 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1466 blk64_t ref_block EXT2FS_ATTR((unused)),
1467 int ref_offset EXT2FS_ATTR((unused)),
1468 void *priv_data)
1469 {
1470 int ret = 0;
1471 blk64_t new_blk;
1472 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
1473
1474 if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
1475 return 0;
1476 new_blk = translate_block(*block_nr);
1477 if (new_blk) {
1478 *block_nr = new_blk;
1479 /*
1480 * This will force the ext2fs_write_inode in the iterator
1481 */
1482 ret |= BLOCK_CHANGED;
1483 }
1484
1485 return ret;
1486 }
1487
inode_scan_and_fix(ext2_filsys fs,ext2fs_block_bitmap bmap)1488 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1489 {
1490 errcode_t retval = 0;
1491 ext2_ino_t ino;
1492 blk64_t blk;
1493 char *block_buf = 0;
1494 struct ext2_inode inode;
1495 ext2_inode_scan scan = NULL;
1496
1497 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
1498 if (retval)
1499 return retval;
1500
1501 retval = ext2fs_open_inode_scan(fs, 0, &scan);
1502 if (retval)
1503 goto err_out;
1504
1505 while (1) {
1506 retval = ext2fs_get_next_inode(scan, &ino, &inode);
1507 if (retval)
1508 goto err_out;
1509
1510 if (!ino)
1511 break;
1512
1513 if (inode.i_links_count == 0)
1514 continue; /* inode not in use */
1515
1516 /* FIXME!!
1517 * If we end up modifying the journal inode
1518 * the sb->s_jnl_blocks will differ. But a
1519 * subsequent e2fsck fixes that.
1520 * Do we need to fix this ??
1521 */
1522
1523 if (ext2fs_file_acl_block(fs, &inode) &&
1524 ext2fs_test_block_bitmap2(bmap,
1525 ext2fs_file_acl_block(fs, &inode))) {
1526 blk = translate_block(ext2fs_file_acl_block(fs,
1527 &inode));
1528 if (!blk)
1529 continue;
1530
1531 ext2fs_file_acl_block_set(fs, &inode, blk);
1532
1533 /*
1534 * Write the inode to disk so that inode table
1535 * resizing can work
1536 */
1537 retval = ext2fs_write_inode(fs, ino, &inode);
1538 if (retval)
1539 goto err_out;
1540 }
1541
1542 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
1543 continue;
1544
1545 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
1546 process_block, bmap);
1547 if (retval)
1548 goto err_out;
1549
1550 }
1551
1552 err_out:
1553 ext2fs_free_mem(&block_buf);
1554
1555 return retval;
1556 }
1557
1558 /*
1559 * We need to scan for inode and block bitmaps that may need to be
1560 * moved. This can take place if the filesystem was formatted for
1561 * RAID arrays using the mke2fs's extended option "stride".
1562 */
group_desc_scan_and_fix(ext2_filsys fs,ext2fs_block_bitmap bmap)1563 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1564 {
1565 dgrp_t i;
1566 blk64_t blk, new_blk;
1567
1568 for (i = 0; i < fs->group_desc_count; i++) {
1569 blk = ext2fs_block_bitmap_loc(fs, i);
1570 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1571 new_blk = translate_block(blk);
1572 if (!new_blk)
1573 continue;
1574 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
1575 }
1576
1577 blk = ext2fs_inode_bitmap_loc(fs, i);
1578 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1579 new_blk = translate_block(blk);
1580 if (!new_blk)
1581 continue;
1582 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
1583 }
1584 }
1585 return 0;
1586 }
1587
expand_inode_table(ext2_filsys fs,unsigned long new_ino_size)1588 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
1589 {
1590 dgrp_t i;
1591 blk64_t blk;
1592 errcode_t retval;
1593 int new_ino_blks_per_grp;
1594 unsigned int j;
1595 char *old_itable = NULL, *new_itable = NULL;
1596 char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
1597 unsigned long old_ino_size;
1598 int old_itable_size, new_itable_size;
1599
1600 old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
1601 old_ino_size = EXT2_INODE_SIZE(fs->super);
1602
1603 new_ino_blks_per_grp = ext2fs_div_ceil(
1604 EXT2_INODES_PER_GROUP(fs->super) *
1605 new_ino_size,
1606 fs->blocksize);
1607
1608 new_itable_size = new_ino_blks_per_grp * fs->blocksize;
1609
1610 retval = ext2fs_get_mem(old_itable_size, &old_itable);
1611 if (retval)
1612 return retval;
1613
1614 retval = ext2fs_get_mem(new_itable_size, &new_itable);
1615 if (retval)
1616 goto err_out;
1617
1618 tmp_old_itable = old_itable;
1619 tmp_new_itable = new_itable;
1620
1621 for (i = 0; i < fs->group_desc_count; i++) {
1622 blk = ext2fs_inode_table_loc(fs, i);
1623 retval = io_channel_read_blk64(fs->io, blk,
1624 fs->inode_blocks_per_group, old_itable);
1625 if (retval)
1626 goto err_out;
1627
1628 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
1629 memcpy(new_itable, old_itable, old_ino_size);
1630
1631 memset(new_itable+old_ino_size, 0,
1632 new_ino_size - old_ino_size);
1633
1634 new_itable += new_ino_size;
1635 old_itable += old_ino_size;
1636 }
1637
1638 /* reset the pointer */
1639 old_itable = tmp_old_itable;
1640 new_itable = tmp_new_itable;
1641
1642 retval = io_channel_write_blk64(fs->io, blk,
1643 new_ino_blks_per_grp, new_itable);
1644 if (retval)
1645 goto err_out;
1646 }
1647
1648 /* Update the meta data */
1649 fs->inode_blocks_per_group = new_ino_blks_per_grp;
1650 fs->super->s_inode_size = new_ino_size;
1651
1652 err_out:
1653 if (old_itable)
1654 ext2fs_free_mem(&old_itable);
1655
1656 if (new_itable)
1657 ext2fs_free_mem(&new_itable);
1658
1659 return retval;
1660 }
1661
ext2fs_calculate_summary_stats(ext2_filsys fs)1662 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
1663 {
1664 blk64_t blk;
1665 ext2_ino_t ino;
1666 unsigned int group = 0;
1667 unsigned int count = 0;
1668 int total_free = 0;
1669 int group_free = 0;
1670
1671 /*
1672 * First calculate the block statistics
1673 */
1674 for (blk = fs->super->s_first_data_block;
1675 blk < ext2fs_blocks_count(fs->super); blk++) {
1676 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
1677 group_free++;
1678 total_free++;
1679 }
1680 count++;
1681 if ((count == fs->super->s_blocks_per_group) ||
1682 (blk == ext2fs_blocks_count(fs->super)-1)) {
1683 ext2fs_bg_free_blocks_count_set(fs, group++,
1684 group_free);
1685 count = 0;
1686 group_free = 0;
1687 }
1688 }
1689 total_free = EXT2FS_C2B(fs, total_free);
1690 ext2fs_free_blocks_count_set(fs->super, total_free);
1691
1692 /*
1693 * Next, calculate the inode statistics
1694 */
1695 group_free = 0;
1696 total_free = 0;
1697 count = 0;
1698 group = 0;
1699
1700 /* Protect loop from wrap-around if s_inodes_count maxed */
1701 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
1702 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
1703 group_free++;
1704 total_free++;
1705 }
1706 count++;
1707 if ((count == fs->super->s_inodes_per_group) ||
1708 (ino == fs->super->s_inodes_count)) {
1709 ext2fs_bg_free_inodes_count_set(fs, group++,
1710 group_free);
1711 count = 0;
1712 group_free = 0;
1713 }
1714 }
1715 fs->super->s_free_inodes_count = total_free;
1716 ext2fs_mark_super_dirty(fs);
1717 return 0;
1718 }
1719
1720 #define list_for_each_safe(pos, pnext, head) \
1721 for (pos = (head)->next, pnext = pos->next; pos != (head); \
1722 pos = pnext, pnext = pos->next)
1723
free_blk_move_list(void)1724 static void free_blk_move_list(void)
1725 {
1726 struct list_head *entry, *tmp;
1727 struct blk_move *bmv;
1728
1729 list_for_each_safe(entry, tmp, &blk_move_list) {
1730 bmv = list_entry(entry, struct blk_move, list);
1731 list_del(entry);
1732 ext2fs_free_mem(&bmv);
1733 }
1734 return;
1735 }
1736
resize_inode(ext2_filsys fs,unsigned long new_size)1737 static int resize_inode(ext2_filsys fs, unsigned long new_size)
1738 {
1739 errcode_t retval;
1740 int new_ino_blks_per_grp;
1741 ext2fs_block_bitmap bmap;
1742
1743 retval = ext2fs_read_inode_bitmap(fs);
1744 if (retval) {
1745 fputs(_("Failed to read inode bitmap\n"), stderr);
1746 return retval;
1747 }
1748 retval = ext2fs_read_block_bitmap(fs);
1749 if (retval) {
1750 fputs(_("Failed to read block bitmap\n"), stderr);
1751 return retval;
1752 }
1753 INIT_LIST_HEAD(&blk_move_list);
1754
1755
1756 new_ino_blks_per_grp = ext2fs_div_ceil(
1757 EXT2_INODES_PER_GROUP(fs->super)*
1758 new_size,
1759 fs->blocksize);
1760
1761 /* We may change the file system.
1762 * Mark the file system as invalid so that
1763 * the user is prompted to run fsck.
1764 */
1765 fs->super->s_state &= ~EXT2_VALID_FS;
1766
1767 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
1768 &bmap);
1769 if (retval) {
1770 fputs(_("Failed to allocate block bitmap when "
1771 "increasing inode size\n"), stderr);
1772 return retval;
1773 }
1774 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
1775 if (retval) {
1776 fputs(_("Not enough space to increase inode size \n"), stderr);
1777 goto err_out;
1778 }
1779 retval = move_block(fs, bmap);
1780 if (retval) {
1781 fputs(_("Failed to relocate blocks during inode resize \n"),
1782 stderr);
1783 goto err_out;
1784 }
1785 retval = inode_scan_and_fix(fs, bmap);
1786 if (retval)
1787 goto err_out_undo;
1788
1789 retval = group_desc_scan_and_fix(fs, bmap);
1790 if (retval)
1791 goto err_out_undo;
1792
1793 retval = expand_inode_table(fs, new_size);
1794 if (retval)
1795 goto err_out_undo;
1796
1797 ext2fs_calculate_summary_stats(fs);
1798
1799 fs->super->s_state |= EXT2_VALID_FS;
1800 /* mark super block and block bitmap as dirty */
1801 ext2fs_mark_super_dirty(fs);
1802 ext2fs_mark_bb_dirty(fs);
1803
1804 err_out:
1805 free_blk_move_list();
1806 ext2fs_free_block_bitmap(bmap);
1807
1808 return retval;
1809
1810 err_out_undo:
1811 free_blk_move_list();
1812 ext2fs_free_block_bitmap(bmap);
1813 fputs(_("Error in resizing the inode size.\n"
1814 "Run e2undo to undo the "
1815 "file system changes. \n"), stderr);
1816
1817 return retval;
1818 }
1819
tune2fs_setup_tdb(const char * name,io_manager * io_ptr)1820 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
1821 {
1822 errcode_t retval = 0;
1823 const char *tdb_dir;
1824 char *tdb_file;
1825 char *dev_name, *tmp_name;
1826
1827 #if 0 /* FIXME!! */
1828 /*
1829 * Configuration via a conf file would be
1830 * nice
1831 */
1832 profile_get_string(profile, "scratch_files",
1833 "directory", 0, 0,
1834 &tdb_dir);
1835 #endif
1836 tmp_name = strdup(name);
1837 if (!tmp_name) {
1838 alloc_fn_fail:
1839 com_err(program_name, ENOMEM, "%s",
1840 _("Couldn't allocate memory for tdb filename\n"));
1841 return ENOMEM;
1842 }
1843 dev_name = basename(tmp_name);
1844
1845 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1846 if (!tdb_dir)
1847 tdb_dir = "/var/lib/e2fsprogs";
1848
1849 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1850 access(tdb_dir, W_OK))
1851 return 0;
1852
1853 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
1854 if (!tdb_file)
1855 goto alloc_fn_fail;
1856 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
1857
1858 if (!access(tdb_file, F_OK)) {
1859 if (unlink(tdb_file) < 0) {
1860 retval = errno;
1861 com_err(program_name, retval,
1862 _("while trying to delete %s"),
1863 tdb_file);
1864 free(tdb_file);
1865 return retval;
1866 }
1867 }
1868
1869 set_undo_io_backing_manager(*io_ptr);
1870 *io_ptr = undo_io_manager;
1871 set_undo_io_backup_file(tdb_file);
1872 printf(_("To undo the tune2fs operation please run "
1873 "the command\n e2undo %s %s\n\n"),
1874 tdb_file, name);
1875 free(tdb_file);
1876 free(tmp_name);
1877 return retval;
1878 }
1879
1880 #ifndef BUILD_AS_LIB
main(int argc,char ** argv)1881 int main(int argc, char **argv)
1882 #else
1883 int tune2fs_main(int argc, char **argv)
1884 #endif /* BUILD_AS_LIB */
1885 {
1886 errcode_t retval;
1887 ext2_filsys fs;
1888 struct ext2_super_block *sb;
1889 io_manager io_ptr, io_ptr_orig = NULL;
1890 int rc = 0;
1891
1892 #ifdef ENABLE_NLS
1893 setlocale(LC_MESSAGES, "");
1894 setlocale(LC_CTYPE, "");
1895 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1896 textdomain(NLS_CAT_NAME);
1897 set_com_err_gettext(gettext);
1898 #endif
1899 if (argc && *argv)
1900 program_name = *argv;
1901 add_error_table(&et_ext2_error_table);
1902
1903 #ifdef CONFIG_BUILD_FINDFS
1904 if (strcmp(get_progname(argv[0]), "findfs") == 0)
1905 do_findfs(argc, argv);
1906 #endif
1907 if (strcmp(get_progname(argv[0]), "e2label") == 0)
1908 parse_e2label_options(argc, argv);
1909 else
1910 parse_tune2fs_options(argc, argv);
1911
1912 #ifdef CONFIG_TESTIO_DEBUG
1913 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
1914 io_ptr = test_io_manager;
1915 test_io_backing_manager = unix_io_manager;
1916 } else
1917 #endif
1918 io_ptr = unix_io_manager;
1919
1920 retry_open:
1921 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
1922 open_flag |= EXT2_FLAG_SKIP_MMP;
1923
1924 open_flag |= EXT2_FLAG_64BITS;
1925
1926 /* keep the filesystem struct around to dump MMP data */
1927 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
1928
1929 retval = ext2fs_open2(device_name, io_options, open_flag,
1930 0, 0, io_ptr, &fs);
1931 if (retval) {
1932 com_err(program_name, retval,
1933 _("while trying to open %s"),
1934 device_name);
1935 if (retval == EXT2_ET_MMP_FSCK_ON ||
1936 retval == EXT2_ET_MMP_UNKNOWN_SEQ)
1937 dump_mmp_msg(fs->mmp_buf,
1938 _("If you are sure the filesystem "
1939 "is not in use on any node, run:\n"
1940 "'tune2fs -f -E clear_mmp {device}'\n"));
1941 else if (retval == EXT2_ET_MMP_FAILED)
1942 dump_mmp_msg(fs->mmp_buf, NULL);
1943 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
1944 fprintf(stderr,
1945 _("MMP block magic is bad. Try to fix it by "
1946 "running:\n'e2fsck -f %s'\n"), device_name);
1947 else if (retval != EXT2_ET_MMP_FAILED)
1948 fprintf(stderr, "%s",
1949 _("Couldn't find valid filesystem superblock.\n"));
1950
1951 ext2fs_free(fs);
1952 exit(1);
1953 }
1954 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
1955
1956 if (I_flag && !io_ptr_orig) {
1957 /*
1958 * Check the inode size is right so we can issue an
1959 * error message and bail before setting up the tdb
1960 * file.
1961 */
1962 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
1963 fprintf(stderr, _("The inode size is already %lu\n"),
1964 new_inode_size);
1965 rc = 1;
1966 goto closefs;
1967 }
1968 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
1969 fprintf(stderr, "%s",
1970 _("Shrinking inode size is not supported\n"));
1971 rc = 1;
1972 goto closefs;
1973 }
1974 if (new_inode_size > fs->blocksize) {
1975 fprintf(stderr, _("Invalid inode size %lu (max %d)\n"),
1976 new_inode_size, fs->blocksize);
1977 rc = 1;
1978 goto closefs;
1979 }
1980
1981 /*
1982 * If inode resize is requested use the
1983 * Undo I/O manager
1984 */
1985 io_ptr_orig = io_ptr;
1986 retval = tune2fs_setup_tdb(device_name, &io_ptr);
1987 if (retval) {
1988 rc = 1;
1989 goto closefs;
1990 }
1991 if (io_ptr != io_ptr_orig) {
1992 ext2fs_close(fs);
1993 goto retry_open;
1994 }
1995 }
1996
1997 sb = fs->super;
1998 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1999
2000 if (print_label) {
2001 /* For e2label emulation */
2002 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
2003 sb->s_volume_name);
2004 remove_error_table(&et_ext2_error_table);
2005 goto closefs;
2006 }
2007
2008 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
2009 if (retval) {
2010 com_err("ext2fs_check_if_mount", retval,
2011 _("while determining whether %s is mounted."),
2012 device_name);
2013 rc = 1;
2014 goto closefs;
2015 }
2016 /* Normally we only need to write out the superblock */
2017 fs->flags |= EXT2_FLAG_SUPER_ONLY;
2018
2019 if (c_flag) {
2020 sb->s_max_mnt_count = max_mount_count;
2021 ext2fs_mark_super_dirty(fs);
2022 printf(_("Setting maximal mount count to %d\n"),
2023 max_mount_count);
2024 }
2025 if (C_flag) {
2026 sb->s_mnt_count = mount_count;
2027 ext2fs_mark_super_dirty(fs);
2028 printf(_("Setting current mount count to %d\n"), mount_count);
2029 }
2030 if (e_flag) {
2031 sb->s_errors = errors;
2032 ext2fs_mark_super_dirty(fs);
2033 printf(_("Setting error behavior to %d\n"), errors);
2034 }
2035 if (g_flag) {
2036 sb->s_def_resgid = resgid;
2037 ext2fs_mark_super_dirty(fs);
2038 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
2039 }
2040 if (i_flag) {
2041 if (interval >= (1ULL << 32)) {
2042 com_err(program_name, 0,
2043 _("interval between checks is too big (%lu)"),
2044 interval);
2045 rc = 1;
2046 goto closefs;
2047 }
2048 sb->s_checkinterval = interval;
2049 ext2fs_mark_super_dirty(fs);
2050 printf(_("Setting interval between checks to %lu seconds\n"),
2051 interval);
2052 }
2053 if (m_flag) {
2054 ext2fs_r_blocks_count_set(sb, reserved_ratio *
2055 ext2fs_blocks_count(sb) / 100.0);
2056 ext2fs_mark_super_dirty(fs);
2057 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2058 reserved_ratio, ext2fs_r_blocks_count(sb));
2059 }
2060 if (r_flag) {
2061 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
2062 com_err(program_name, 0,
2063 _("reserved blocks count is too big (%llu)"),
2064 reserved_blocks);
2065 rc = 1;
2066 goto closefs;
2067 }
2068 ext2fs_r_blocks_count_set(sb, reserved_blocks);
2069 ext2fs_mark_super_dirty(fs);
2070 printf(_("Setting reserved blocks count to %llu\n"),
2071 reserved_blocks);
2072 }
2073 if (s_flag == 1) {
2074 if (sb->s_feature_ro_compat &
2075 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
2076 fputs(_("\nThe filesystem already has sparse "
2077 "superblocks.\n"), stderr);
2078 else {
2079 sb->s_feature_ro_compat |=
2080 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2081 sb->s_state &= ~EXT2_VALID_FS;
2082 ext2fs_mark_super_dirty(fs);
2083 printf(_("\nSparse superblock flag set. %s"),
2084 _(please_fsck));
2085 }
2086 }
2087 if (s_flag == 0) {
2088 fputs(_("\nClearing the sparse superflag not supported.\n"),
2089 stderr);
2090 rc = 1;
2091 goto closefs;
2092 }
2093 if (T_flag) {
2094 sb->s_lastcheck = last_check_time;
2095 ext2fs_mark_super_dirty(fs);
2096 printf(_("Setting time filesystem last checked to %s\n"),
2097 ctime(&last_check_time));
2098 }
2099 if (u_flag) {
2100 sb->s_def_resuid = resuid;
2101 ext2fs_mark_super_dirty(fs);
2102 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
2103 }
2104 if (L_flag) {
2105 if (strlen(new_label) > sizeof(sb->s_volume_name))
2106 fputs(_("Warning: label too long, truncating.\n"),
2107 stderr);
2108 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
2109 strncpy(sb->s_volume_name, new_label,
2110 sizeof(sb->s_volume_name));
2111 ext2fs_mark_super_dirty(fs);
2112 }
2113 if (M_flag) {
2114 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
2115 strncpy(sb->s_last_mounted, new_last_mounted,
2116 sizeof(sb->s_last_mounted));
2117 ext2fs_mark_super_dirty(fs);
2118 }
2119 if (mntopts_cmd) {
2120 rc = update_mntopts(fs, mntopts_cmd);
2121 if (rc)
2122 goto closefs;
2123 }
2124 if (features_cmd) {
2125 rc = update_feature_set(fs, features_cmd);
2126 if (rc)
2127 goto closefs;
2128 }
2129 if (extended_cmd) {
2130 rc = parse_extended_opts(fs, extended_cmd);
2131 if (rc)
2132 goto closefs;
2133 if (clear_mmp && !f_flag) {
2134 fputs(_("Error in using clear_mmp. "
2135 "It must be used with -f\n"),
2136 stderr);
2137 goto closefs;
2138 }
2139 }
2140 if (clear_mmp) {
2141 rc = ext2fs_mmp_clear(fs);
2142 goto closefs;
2143 }
2144 if (journal_size || journal_device) {
2145 rc = add_journal(fs);
2146 if (rc)
2147 goto closefs;
2148 }
2149
2150 if (Q_flag) {
2151 if (mount_flags & EXT2_MF_MOUNTED) {
2152 fputs(_("The quota feature may only be changed when "
2153 "the filesystem is unmounted.\n"), stderr);
2154 rc = 1;
2155 goto closefs;
2156 }
2157 handle_quota_options(fs);
2158 }
2159
2160 if (U_flag) {
2161 int set_csum = 0;
2162 dgrp_t i;
2163
2164 if (sb->s_feature_ro_compat &
2165 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
2166 /*
2167 * Changing the UUID requires rewriting all metadata,
2168 * which can race with a mounted fs. Don't allow that.
2169 */
2170 if (mount_flags & EXT2_MF_MOUNTED) {
2171 fputs(_("The UUID may only be "
2172 "changed when the filesystem is "
2173 "unmounted.\n"), stderr);
2174 exit(1);
2175 }
2176 if (check_fsck_needed(fs))
2177 exit(1);
2178
2179 /*
2180 * Determine if the block group checksums are
2181 * correct so we know whether or not to set
2182 * them later on.
2183 */
2184 for (i = 0; i < fs->group_desc_count; i++)
2185 if (!ext2fs_group_desc_csum_verify(fs, i))
2186 break;
2187 if (i >= fs->group_desc_count)
2188 set_csum = 1;
2189 }
2190 if ((strcasecmp(new_UUID, "null") == 0) ||
2191 (strcasecmp(new_UUID, "clear") == 0)) {
2192 uuid_clear(sb->s_uuid);
2193 } else if (strcasecmp(new_UUID, "time") == 0) {
2194 uuid_generate_time(sb->s_uuid);
2195 } else if (strcasecmp(new_UUID, "random") == 0) {
2196 uuid_generate(sb->s_uuid);
2197 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
2198 com_err(program_name, 0, "%s",
2199 _("Invalid UUID format\n"));
2200 rc = 1;
2201 goto closefs;
2202 }
2203 if (set_csum) {
2204 for (i = 0; i < fs->group_desc_count; i++)
2205 ext2fs_group_desc_csum_set(fs, i);
2206 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2207 }
2208 ext2fs_mark_super_dirty(fs);
2209 }
2210 if (I_flag) {
2211 if (mount_flags & EXT2_MF_MOUNTED) {
2212 fputs(_("The inode size may only be "
2213 "changed when the filesystem is "
2214 "unmounted.\n"), stderr);
2215 rc = 1;
2216 goto closefs;
2217 }
2218 if (fs->super->s_feature_incompat &
2219 EXT4_FEATURE_INCOMPAT_FLEX_BG) {
2220 fputs(_("Changing the inode size not supported for "
2221 "filesystems with the flex_bg\n"
2222 "feature enabled.\n"),
2223 stderr);
2224 rc = 1;
2225 goto closefs;
2226 }
2227 /*
2228 * We want to update group descriptor also
2229 * with the new free inode count
2230 */
2231 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2232 if (resize_inode(fs, new_inode_size) == 0) {
2233 printf(_("Setting inode size %lu\n"),
2234 new_inode_size);
2235 } else {
2236 printf("%s", _("Failed to change inode size\n"));
2237 rc = 1;
2238 goto closefs;
2239 }
2240 }
2241
2242 if (l_flag)
2243 list_super(sb);
2244 if (stride_set) {
2245 sb->s_raid_stride = stride;
2246 ext2fs_mark_super_dirty(fs);
2247 printf(_("Setting stride size to %d\n"), stride);
2248 }
2249 if (stripe_width_set) {
2250 sb->s_raid_stripe_width = stripe_width;
2251 ext2fs_mark_super_dirty(fs);
2252 printf(_("Setting stripe width to %d\n"), stripe_width);
2253 }
2254 if (ext_mount_opts) {
2255 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
2256 sizeof(fs->super->s_mount_opts));
2257 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
2258 ext2fs_mark_super_dirty(fs);
2259 printf(_("Setting extended default mount options to '%s'\n"),
2260 ext_mount_opts);
2261 free(ext_mount_opts);
2262 }
2263 free(device_name);
2264 remove_error_table(&et_ext2_error_table);
2265
2266 closefs:
2267 if (rc) {
2268 ext2fs_mmp_stop(fs);
2269 #ifndef BUILD_AS_LIB
2270 exit(1);
2271 #endif
2272 }
2273 return (ext2fs_close(fs) ? 1 : 0);
2274 }
2275