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tune2fs: respect quota config option
[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 #define _BSD_SOURCE /* for inclusion of strcasecmp() */
30 #include "config.h"
31 #include <fcntl.h>
32 #include <grp.h>
33 #ifdef HAVE_GETOPT_H
34 #include <getopt.h>
35 #else
36 extern char *optarg;
37 extern int optind;
38 #endif
39 #include <pwd.h>
40 #include <stdio.h>
41 #ifdef HAVE_STDLIB_H
42 #include <stdlib.h>
43 #endif
44 #include <string.h>
45 #include <time.h>
46 #include <unistd.h>
47 #include <sys/types.h>
48 #include <libgen.h>
49 #include <limits.h>
50
51 #include "ext2fs/ext2_fs.h"
52 #include "ext2fs/ext2fs.h"
53 #include "et/com_err.h"
54 #include "uuid/uuid.h"
55 #include "e2p/e2p.h"
56 #include "jfs_user.h"
57 #include "util.h"
58 #include "blkid/blkid.h"
59 #include "quota/mkquota.h"
60
61 #include "../version.h"
62 #include "nls-enable.h"
63
64 #define QOPT_ENABLE (1)
65 #define QOPT_DISABLE (-1)
66
67 extern int ask_yn(const char *string, int def);
68
69 const char *program_name = "tune2fs";
70 char *device_name;
71 char *new_label, *new_last_mounted, *new_UUID;
72 char *io_options;
73 static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag;
74 static int m_flag, M_flag, Q_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag;
75 static int I_flag;
76 static int clear_mmp;
77 static time_t last_check_time;
78 static int print_label;
79 static int max_mount_count, mount_count, mount_flags;
80 static unsigned long interval;
81 static blk64_t reserved_blocks;
82 static double reserved_ratio;
83 static unsigned long resgid, resuid;
84 static unsigned short errors;
85 static int open_flag;
86 static char *features_cmd;
87 static char *mntopts_cmd;
88 static int stride, stripe_width;
89 static int stride_set, stripe_width_set;
90 static char *extended_cmd;
91 static unsigned long new_inode_size;
92 static char *ext_mount_opts;
93 static int usrquota, grpquota;
94
95 int journal_size, journal_flags;
96 char *journal_device;
97
98 static struct list_head blk_move_list;
99
100 struct blk_move {
101 struct list_head list;
102 blk64_t old_loc;
103 blk64_t new_loc;
104 };
105
106
107 static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
108
109 #ifdef CONFIG_BUILD_FINDFS
110 void do_findfs(int argc, char **argv);
111 #endif
112
113 static void usage(void)
114 {
115 fprintf(stderr,
116 _("Usage: %s [-c max_mounts_count] [-e errors_behavior] "
117 "[-g group]\n"
118 "\t[-i interval[d|m|w]] [-j] [-J journal_options] [-l]\n"
119 "\t[-m reserved_blocks_percent] "
120 "[-o [^]mount_options[,...]] [-p mmp_update_interval]\n"
121 "\t[-r reserved_blocks_count] [-u user] [-C mount_count] "
122 "[-L volume_label]\n"
123 "\t[-M last_mounted_dir] [-O [^]feature[,...]]\n"
124 "\t[-E extended-option[,...]] [-T last_check_time] "
125 "[-U UUID]\n\t[ -I new_inode_size ] device\n"), program_name);
126 exit(1);
127 }
128
129 static __u32 ok_features[3] = {
130 /* Compat */
131 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
132 EXT2_FEATURE_COMPAT_DIR_INDEX,
133 /* Incompat */
134 EXT2_FEATURE_INCOMPAT_FILETYPE |
135 EXT3_FEATURE_INCOMPAT_EXTENTS |
136 EXT4_FEATURE_INCOMPAT_FLEX_BG |
137 EXT4_FEATURE_INCOMPAT_MMP,
138 /* R/O compat */
139 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
140 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
141 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
142 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
143 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
144 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER |
145 #ifdef CONFIG_QUOTA
146 EXT4_FEATURE_RO_COMPAT_QUOTA
147 #endif
148 };
149
150 static __u32 clear_ok_features[3] = {
151 /* Compat */
152 EXT3_FEATURE_COMPAT_HAS_JOURNAL |
153 EXT2_FEATURE_COMPAT_RESIZE_INODE |
154 EXT2_FEATURE_COMPAT_DIR_INDEX,
155 /* Incompat */
156 EXT2_FEATURE_INCOMPAT_FILETYPE |
157 EXT4_FEATURE_INCOMPAT_FLEX_BG |
158 EXT4_FEATURE_INCOMPAT_MMP,
159 /* R/O compat */
160 EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
161 EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
162 EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
163 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
164 EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
165 #ifdef CONFIG_QUOTA
166 EXT4_FEATURE_RO_COMPAT_QUOTA
167 #endif
168 };
169
170 /*
171 * Remove an external journal from the filesystem
172 */
173 static int remove_journal_device(ext2_filsys fs)
174 {
175 char *journal_path;
176 ext2_filsys jfs;
177 char buf[1024];
178 journal_superblock_t *jsb;
179 int i, nr_users;
180 errcode_t retval;
181 int commit_remove_journal = 0;
182 io_manager io_ptr;
183
184 if (f_flag)
185 commit_remove_journal = 1; /* force removal even if error */
186
187 uuid_unparse(fs->super->s_journal_uuid, buf);
188 journal_path = blkid_get_devname(NULL, "UUID", buf);
189
190 if (!journal_path) {
191 journal_path =
192 ext2fs_find_block_device(fs->super->s_journal_dev);
193 if (!journal_path)
194 goto no_valid_journal;
195 }
196
197 #ifdef CONFIG_TESTIO_DEBUG
198 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
199 io_ptr = test_io_manager;
200 test_io_backing_manager = unix_io_manager;
201 } else
202 #endif
203 io_ptr = unix_io_manager;
204 retval = ext2fs_open(journal_path, EXT2_FLAG_RW|
205 EXT2_FLAG_JOURNAL_DEV_OK, 0,
206 fs->blocksize, io_ptr, &jfs);
207 if (retval) {
208 com_err(program_name, retval,
209 _("while trying to open external journal"));
210 goto no_valid_journal;
211 }
212 if (!(jfs->super->s_feature_incompat &
213 EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
214 fprintf(stderr, _("%s is not a journal device.\n"),
215 journal_path);
216 goto no_valid_journal;
217 }
218
219 /* Get the journal superblock */
220 if ((retval = io_channel_read_blk64(jfs->io, 1, -1024, buf))) {
221 com_err(program_name, retval,
222 _("while reading journal superblock"));
223 goto no_valid_journal;
224 }
225
226 jsb = (journal_superblock_t *) buf;
227 if ((jsb->s_header.h_magic != (unsigned)ntohl(JFS_MAGIC_NUMBER)) ||
228 (jsb->s_header.h_blocktype != (unsigned)ntohl(JFS_SUPERBLOCK_V2))) {
229 fputs(_("Journal superblock not found!\n"), stderr);
230 goto no_valid_journal;
231 }
232
233 /* Find the filesystem UUID */
234 nr_users = ntohl(jsb->s_nr_users);
235 for (i = 0; i < nr_users; i++) {
236 if (memcmp(fs->super->s_uuid, &jsb->s_users[i * 16], 16) == 0)
237 break;
238 }
239 if (i >= nr_users) {
240 fputs(_("Filesystem's UUID not found on journal device.\n"),
241 stderr);
242 commit_remove_journal = 1;
243 goto no_valid_journal;
244 }
245 nr_users--;
246 for (i = 0; i < nr_users; i++)
247 memcpy(&jsb->s_users[i * 16], &jsb->s_users[(i + 1) * 16], 16);
248 jsb->s_nr_users = htonl(nr_users);
249
250 /* Write back the journal superblock */
251 if ((retval = io_channel_write_blk64(jfs->io, 1, -1024, buf))) {
252 com_err(program_name, retval,
253 "while writing journal superblock.");
254 goto no_valid_journal;
255 }
256
257 commit_remove_journal = 1;
258
259 no_valid_journal:
260 if (commit_remove_journal == 0) {
261 fputs(_("Cannot locate journal device. It was NOT removed\n"
262 "Use -f option to remove missing journal device.\n"),
263 stderr);
264 return 1;
265 }
266 fs->super->s_journal_dev = 0;
267 uuid_clear(fs->super->s_journal_uuid);
268 ext2fs_mark_super_dirty(fs);
269 fputs(_("Journal removed\n"), stdout);
270 free(journal_path);
271
272 return 0;
273 }
274
275 /* Helper function for remove_journal_inode */
276 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
277 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
278 blk64_t ref_block EXT2FS_ATTR((unused)),
279 int ref_offset EXT2FS_ATTR((unused)),
280 void *private EXT2FS_ATTR((unused)))
281 {
282 blk64_t block;
283 int group;
284
285 block = *blocknr;
286 ext2fs_unmark_block_bitmap2(fs->block_map, block);
287 group = ext2fs_group_of_blk2(fs, block);
288 ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
289 ext2fs_group_desc_csum_set(fs, group);
290 ext2fs_free_blocks_count_add(fs->super, EXT2FS_CLUSTER_RATIO(fs));
291 return 0;
292 }
293
294 /*
295 * Remove the journal inode from the filesystem
296 */
297 static errcode_t remove_journal_inode(ext2_filsys fs)
298 {
299 struct ext2_inode inode;
300 errcode_t retval;
301 ino_t ino = fs->super->s_journal_inum;
302
303 retval = ext2fs_read_inode(fs, ino, &inode);
304 if (retval) {
305 com_err(program_name, retval,
306 _("while reading journal inode"));
307 return retval;
308 }
309 if (ino == EXT2_JOURNAL_INO) {
310 retval = ext2fs_read_bitmaps(fs);
311 if (retval) {
312 com_err(program_name, retval,
313 _("while reading bitmaps"));
314 return retval;
315 }
316 retval = ext2fs_block_iterate3(fs, ino,
317 BLOCK_FLAG_READ_ONLY, NULL,
318 release_blocks_proc, NULL);
319 if (retval) {
320 com_err(program_name, retval,
321 _("while clearing journal inode"));
322 return retval;
323 }
324 memset(&inode, 0, sizeof(inode));
325 ext2fs_mark_bb_dirty(fs);
326 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
327 } else
328 inode.i_flags &= ~EXT2_IMMUTABLE_FL;
329 retval = ext2fs_write_inode(fs, ino, &inode);
330 if (retval) {
331 com_err(program_name, retval,
332 _("while writing journal inode"));
333 return retval;
334 }
335 fs->super->s_journal_inum = 0;
336 ext2fs_mark_super_dirty(fs);
337
338 return 0;
339 }
340
341 /*
342 * Update the default mount options
343 */
344 static int update_mntopts(ext2_filsys fs, char *mntopts)
345 {
346 struct ext2_super_block *sb = fs->super;
347
348 if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) {
349 fprintf(stderr, _("Invalid mount option set: %s\n"),
350 mntopts);
351 return 1;
352 }
353 ext2fs_mark_super_dirty(fs);
354
355 return 0;
356 }
357
358 static void request_fsck_afterwards(ext2_filsys fs)
359 {
360 static int requested = 0;
361
362 if (requested++)
363 return;
364 fs->super->s_state &= ~EXT2_VALID_FS;
365 printf("\n%s\n", _(please_fsck));
366 if (mount_flags & EXT2_MF_READONLY)
367 printf(_("(and reboot afterwards!)\n"));
368 }
369
370 /*
371 * Update the feature set as provided by the user.
372 */
373 static int update_feature_set(ext2_filsys fs, char *features)
374 {
375 struct ext2_super_block *sb = fs->super;
376 struct ext2_group_desc *gd;
377 __u32 old_features[3];
378 int i, type_err;
379 unsigned int mask_err;
380
381 #define FEATURE_ON(type, mask) (!(old_features[(type)] & (mask)) && \
382 ((&sb->s_feature_compat)[(type)] & (mask)))
383 #define FEATURE_OFF(type, mask) ((old_features[(type)] & (mask)) && \
384 !((&sb->s_feature_compat)[(type)] & (mask)))
385 #define FEATURE_CHANGED(type, mask) ((mask) & \
386 (old_features[(type)] ^ (&sb->s_feature_compat)[(type)]))
387
388 old_features[E2P_FEATURE_COMPAT] = sb->s_feature_compat;
389 old_features[E2P_FEATURE_INCOMPAT] = sb->s_feature_incompat;
390 old_features[E2P_FEATURE_RO_INCOMPAT] = sb->s_feature_ro_compat;
391
392 if (e2p_edit_feature2(features, &sb->s_feature_compat,
393 ok_features, clear_ok_features,
394 &type_err, &mask_err)) {
395 if (!mask_err)
396 fprintf(stderr,
397 _("Invalid filesystem option set: %s\n"),
398 features);
399 else if (type_err & E2P_FEATURE_NEGATE_FLAG)
400 fprintf(stderr, _("Clearing filesystem feature '%s' "
401 "not supported.\n"),
402 e2p_feature2string(type_err &
403 E2P_FEATURE_TYPE_MASK,
404 mask_err));
405 else
406 fprintf(stderr, _("Setting filesystem feature '%s' "
407 "not supported.\n"),
408 e2p_feature2string(type_err, mask_err));
409 return 1;
410 }
411
412 if (FEATURE_OFF(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
413 if ((mount_flags & EXT2_MF_MOUNTED) &&
414 !(mount_flags & EXT2_MF_READONLY)) {
415 fputs(_("The has_journal feature may only be "
416 "cleared when the filesystem is\n"
417 "unmounted or mounted "
418 "read-only.\n"), stderr);
419 return 1;
420 }
421 if (sb->s_feature_incompat &
422 EXT3_FEATURE_INCOMPAT_RECOVER) {
423 fputs(_("The needs_recovery flag is set. "
424 "Please run e2fsck before clearing\n"
425 "the has_journal flag.\n"), stderr);
426 return 1;
427 }
428 if (sb->s_journal_inum) {
429 if (remove_journal_inode(fs))
430 return 1;
431 }
432 if (sb->s_journal_dev) {
433 if (remove_journal_device(fs))
434 return 1;
435 }
436 }
437 if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
438 int error;
439
440 if ((mount_flags & EXT2_MF_MOUNTED) ||
441 (mount_flags & EXT2_MF_READONLY)) {
442 fputs(_("The multiple mount protection feature can't\n"
443 "be set if the filesystem is mounted or\n"
444 "read-only.\n"), stderr);
445 return 1;
446 }
447
448 error = ext2fs_mmp_init(fs);
449 if (error) {
450 fputs(_("\nError while enabling multiple mount "
451 "protection feature."), stderr);
452 return 1;
453 }
454
455 /*
456 * We want to update group desc with the new free blocks count
457 */
458 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
459
460 printf(_("Multiple mount protection has been enabled "
461 "with update interval %ds.\n"),
462 sb->s_mmp_update_interval);
463 }
464
465 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_MMP)) {
466 int error;
467
468 if (mount_flags & EXT2_MF_READONLY) {
469 fputs(_("The multiple mount protection feature cannot\n"
470 "be disabled if the filesystem is readonly.\n"),
471 stderr);
472 return 1;
473 }
474
475 error = ext2fs_read_bitmaps(fs);
476 if (error) {
477 fputs(_("Error while reading bitmaps\n"), stderr);
478 return 1;
479 }
480
481 error = ext2fs_mmp_read(fs, sb->s_mmp_block, NULL);
482 if (error) {
483 struct mmp_struct *mmp_cmp = fs->mmp_cmp;
484
485 if (error == EXT2_ET_MMP_MAGIC_INVALID)
486 printf(_("Magic number in MMP block does not "
487 "match. expected: %x, actual: %x\n"),
488 EXT4_MMP_MAGIC, mmp_cmp->mmp_magic);
489 else
490 com_err(program_name, error,
491 _("while reading MMP block."));
492 goto mmp_error;
493 }
494
495 /* We need to force out the group descriptors as well */
496 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
497 ext2fs_block_alloc_stats(fs, sb->s_mmp_block, -1);
498 mmp_error:
499 sb->s_mmp_block = 0;
500 sb->s_mmp_update_interval = 0;
501 }
502
503 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
504 /*
505 * If adding a journal flag, let the create journal
506 * code below handle setting the flag and creating the
507 * journal. We supply a default size if necessary.
508 */
509 if (!journal_size)
510 journal_size = -1;
511 sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
512 }
513
514 if (FEATURE_ON(E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX)) {
515 if (!sb->s_def_hash_version)
516 sb->s_def_hash_version = EXT2_HASH_HALF_MD4;
517 if (uuid_is_null((unsigned char *) sb->s_hash_seed))
518 uuid_generate((unsigned char *) sb->s_hash_seed);
519 }
520
521 if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
522 if (ext2fs_check_desc(fs)) {
523 fputs(_("Clearing the flex_bg flag would "
524 "cause the the filesystem to be\n"
525 "inconsistent.\n"), stderr);
526 return 1;
527 }
528 }
529
530 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
531 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)) {
532 if ((mount_flags & EXT2_MF_MOUNTED) &&
533 !(mount_flags & EXT2_MF_READONLY)) {
534 fputs(_("The huge_file feature may only be "
535 "cleared when the filesystem is\n"
536 "unmounted or mounted "
537 "read-only.\n"), stderr);
538 return 1;
539 }
540 }
541
542 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
543 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
544 for (i = 0; i < fs->group_desc_count; i++) {
545 gd = ext2fs_group_desc(fs, fs->group_desc, i);
546 gd->bg_itable_unused = 0;
547 gd->bg_flags = EXT2_BG_INODE_ZEROED;
548 ext2fs_group_desc_csum_set(fs, i);
549 }
550 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
551 }
552
553 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
554 EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) {
555 for (i = 0; i < fs->group_desc_count; i++) {
556 gd = ext2fs_group_desc(fs, fs->group_desc, i);
557 if ((gd->bg_flags & EXT2_BG_INODE_ZEROED) == 0) {
558 /*
559 * XXX what we really should do is zap
560 * uninitialized inode tables instead.
561 */
562 request_fsck_afterwards(fs);
563 break;
564 }
565 gd->bg_itable_unused = 0;
566 gd->bg_flags = 0;
567 gd->bg_checksum = 0;
568 }
569 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
570 }
571
572 if (FEATURE_ON(E2P_FEATURE_RO_INCOMPAT,
573 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
574 /*
575 * Set the Q_flag here and handle the quota options in the code
576 * below.
577 */
578 if (!Q_flag) {
579 Q_flag = 1;
580 /* Enable both user quota and group quota by default */
581 usrquota = QOPT_ENABLE;
582 grpquota = QOPT_ENABLE;
583 }
584 sb->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
585 }
586
587 if (FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
588 EXT4_FEATURE_RO_COMPAT_QUOTA)) {
589 /*
590 * Set the Q_flag here and handle the quota options in the code
591 * below.
592 */
593 if (Q_flag)
594 fputs(_("\nWarning: '^quota' option overrides '-Q'"
595 "arguments.\n"), stderr);
596 Q_flag = 1;
597 /* Disable both user quota and group quota by default */
598 usrquota = QOPT_DISABLE;
599 grpquota = QOPT_DISABLE;
600 }
601
602 if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
603 (sb->s_feature_compat || sb->s_feature_ro_compat ||
604 sb->s_feature_incompat))
605 ext2fs_update_dynamic_rev(fs);
606
607 if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
608 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
609 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
610 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
611 FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
612 EXT2_FEATURE_INCOMPAT_FILETYPE) ||
613 FEATURE_CHANGED(E2P_FEATURE_COMPAT,
614 EXT2_FEATURE_COMPAT_RESIZE_INODE) ||
615 FEATURE_OFF(E2P_FEATURE_RO_INCOMPAT,
616 EXT2_FEATURE_RO_COMPAT_LARGE_FILE))
617 request_fsck_afterwards(fs);
618
619 if ((old_features[E2P_FEATURE_COMPAT] != sb->s_feature_compat) ||
620 (old_features[E2P_FEATURE_INCOMPAT] != sb->s_feature_incompat) ||
621 (old_features[E2P_FEATURE_RO_INCOMPAT] != sb->s_feature_ro_compat))
622 ext2fs_mark_super_dirty(fs);
623
624 return 0;
625 }
626
627 /*
628 * Add a journal to the filesystem.
629 */
630 static int add_journal(ext2_filsys fs)
631 {
632 unsigned long journal_blocks;
633 errcode_t retval;
634 ext2_filsys jfs;
635 io_manager io_ptr;
636
637 if (fs->super->s_feature_compat &
638 EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
639 fputs(_("The filesystem already has a journal.\n"), stderr);
640 goto err;
641 }
642 if (journal_device) {
643 check_plausibility(journal_device);
644 check_mount(journal_device, 0, _("journal"));
645 #ifdef CONFIG_TESTIO_DEBUG
646 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
647 io_ptr = test_io_manager;
648 test_io_backing_manager = unix_io_manager;
649 } else
650 #endif
651 io_ptr = unix_io_manager;
652 retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
653 EXT2_FLAG_JOURNAL_DEV_OK, 0,
654 fs->blocksize, io_ptr, &jfs);
655 if (retval) {
656 com_err(program_name, retval,
657 _("\n\twhile trying to open journal on %s\n"),
658 journal_device);
659 goto err;
660 }
661 printf(_("Creating journal on device %s: "),
662 journal_device);
663 fflush(stdout);
664
665 retval = ext2fs_add_journal_device(fs, jfs);
666 ext2fs_close(jfs);
667 if (retval) {
668 com_err(program_name, retval,
669 _("while adding filesystem to journal on %s"),
670 journal_device);
671 goto err;
672 }
673 fputs(_("done\n"), stdout);
674 } else if (journal_size) {
675 fputs(_("Creating journal inode: "), stdout);
676 fflush(stdout);
677 journal_blocks = figure_journal_size(journal_size, fs);
678
679 retval = ext2fs_add_journal_inode(fs, journal_blocks,
680 journal_flags);
681 if (retval) {
682 fprintf(stderr, "\n");
683 com_err(program_name, retval,
684 _("\n\twhile trying to create journal file"));
685 return retval;
686 } else
687 fputs(_("done\n"), stdout);
688 /*
689 * If the filesystem wasn't mounted, we need to force
690 * the block group descriptors out.
691 */
692 if ((mount_flags & EXT2_MF_MOUNTED) == 0)
693 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
694 }
695 print_check_message(fs->super->s_max_mnt_count,
696 fs->super->s_checkinterval);
697 return 0;
698
699 err:
700 free(journal_device);
701 return 1;
702 }
703
704 void handle_quota_options(ext2_filsys fs)
705 {
706 quota_ctx_t qctx;
707 ext2_ino_t qf_ino;
708
709 if (!usrquota && !grpquota)
710 /* Nothing to do. */
711 return;
712
713 quota_init_context(&qctx, fs, -1);
714
715 if (usrquota == QOPT_ENABLE || grpquota == QOPT_ENABLE)
716 quota_compute_usage(qctx);
717
718 if (usrquota == QOPT_ENABLE && !fs->super->s_usr_quota_inum) {
719 if ((qf_ino = quota_file_exists(fs, USRQUOTA,
720 QFMT_VFS_V1)) > 0)
721 quota_update_limits(qctx, qf_ino, USRQUOTA);
722 quota_write_inode(qctx, USRQUOTA);
723 } else if (usrquota == QOPT_DISABLE) {
724 quota_remove_inode(fs, USRQUOTA);
725 }
726
727 if (grpquota == QOPT_ENABLE && !fs->super->s_grp_quota_inum) {
728 if ((qf_ino = quota_file_exists(fs, GRPQUOTA,
729 QFMT_VFS_V1)) > 0)
730 quota_update_limits(qctx, qf_ino, GRPQUOTA);
731 quota_write_inode(qctx, GRPQUOTA);
732 } else if (grpquota == QOPT_DISABLE) {
733 quota_remove_inode(fs, GRPQUOTA);
734 }
735
736 quota_release_context(&qctx);
737
738 if ((usrquota == QOPT_ENABLE) || (grpquota == QOPT_ENABLE)) {
739 fs->super->s_feature_ro_compat |= EXT4_FEATURE_RO_COMPAT_QUOTA;
740 ext2fs_mark_super_dirty(fs);
741 } else if (!fs->super->s_usr_quota_inum &&
742 !fs->super->s_grp_quota_inum) {
743 fs->super->s_feature_ro_compat &= ~EXT4_FEATURE_RO_COMPAT_QUOTA;
744 ext2fs_mark_super_dirty(fs);
745 }
746
747 return;
748 }
749
750 void parse_quota_opts(const char *opts)
751 {
752 char *buf, *token, *next, *p;
753 int len;
754
755 len = strlen(opts);
756 buf = malloc(len+1);
757 if (!buf) {
758 fputs(_("Couldn't allocate memory to parse quota "
759 "options!\n"), stderr);
760 exit(1);
761 }
762 strcpy(buf, opts);
763 for (token = buf; token && *token; token = next) {
764 p = strchr(token, ',');
765 next = 0;
766 if (p) {
767 *p = 0;
768 next = p+1;
769 }
770
771 if (strcmp(token, "usrquota") == 0) {
772 usrquota = QOPT_ENABLE;
773 } else if (strcmp(token, "^usrquota") == 0) {
774 usrquota = QOPT_DISABLE;
775 } else if (strcmp(token, "grpquota") == 0) {
776 grpquota = QOPT_ENABLE;
777 } else if (strcmp(token, "^grpquota") == 0) {
778 grpquota = QOPT_DISABLE;
779 } else {
780 fputs(_("\nBad quota options specified.\n\n"
781 "Following valid quota options are available "
782 "(pass by separating with comma):\n"
783 "\t[^]usrquota\n"
784 "\t[^]grpquota\n"
785 "\n\n"), stderr);
786 free(buf);
787 exit(1);
788 }
789 }
790 free(buf);
791 }
792
793
794
795 static void parse_e2label_options(int argc, char ** argv)
796 {
797 if ((argc < 2) || (argc > 3)) {
798 fputs(_("Usage: e2label device [newlabel]\n"), stderr);
799 exit(1);
800 }
801 io_options = strchr(argv[1], '?');
802 if (io_options)
803 *io_options++ = 0;
804 device_name = blkid_get_devname(NULL, argv[1], NULL);
805 if (!device_name) {
806 com_err("e2label", 0, _("Unable to resolve '%s'"),
807 argv[1]);
808 exit(1);
809 }
810 open_flag = EXT2_FLAG_JOURNAL_DEV_OK;
811 if (argc == 3) {
812 open_flag |= EXT2_FLAG_RW;
813 L_flag = 1;
814 new_label = argv[2];
815 } else
816 print_label++;
817 }
818
819 static time_t parse_time(char *str)
820 {
821 struct tm ts;
822
823 if (strcmp(str, "now") == 0) {
824 return (time(0));
825 }
826 memset(&ts, 0, sizeof(ts));
827 #ifdef HAVE_STRPTIME
828 strptime(str, "%Y%m%d%H%M%S", &ts);
829 #else
830 sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon,
831 &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec);
832 ts.tm_year -= 1900;
833 ts.tm_mon -= 1;
834 if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 ||
835 ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 ||
836 ts.tm_min > 59 || ts.tm_sec > 61)
837 ts.tm_mday = 0;
838 #endif
839 if (ts.tm_mday == 0) {
840 com_err(program_name, 0,
841 _("Couldn't parse date/time specifier: %s"),
842 str);
843 usage();
844 }
845 ts.tm_isdst = -1;
846 return (mktime(&ts));
847 }
848
849 static void parse_tune2fs_options(int argc, char **argv)
850 {
851 int c;
852 char *tmp;
853 struct group *gr;
854 struct passwd *pw;
855
856 open_flag = 0;
857
858 printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE);
859 while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:E:I:J:L:M:O:Q:T:U:")) != EOF)
860 switch (c) {
861 case 'c':
862 max_mount_count = strtol(optarg, &tmp, 0);
863 if (*tmp || max_mount_count > 16000) {
864 com_err(program_name, 0,
865 _("bad mounts count - %s"),
866 optarg);
867 usage();
868 }
869 if (max_mount_count == 0)
870 max_mount_count = -1;
871 c_flag = 1;
872 open_flag = EXT2_FLAG_RW;
873 break;
874 case 'C':
875 mount_count = strtoul(optarg, &tmp, 0);
876 if (*tmp || mount_count > 16000) {
877 com_err(program_name, 0,
878 _("bad mounts count - %s"),
879 optarg);
880 usage();
881 }
882 C_flag = 1;
883 open_flag = EXT2_FLAG_RW;
884 break;
885 case 'e':
886 if (strcmp(optarg, "continue") == 0)
887 errors = EXT2_ERRORS_CONTINUE;
888 else if (strcmp(optarg, "remount-ro") == 0)
889 errors = EXT2_ERRORS_RO;
890 else if (strcmp(optarg, "panic") == 0)
891 errors = EXT2_ERRORS_PANIC;
892 else {
893 com_err(program_name, 0,
894 _("bad error behavior - %s"),
895 optarg);
896 usage();
897 }
898 e_flag = 1;
899 open_flag = EXT2_FLAG_RW;
900 break;
901 case 'E':
902 extended_cmd = optarg;
903 open_flag |= EXT2_FLAG_RW;
904 break;
905 case 'f': /* Force */
906 f_flag = 1;
907 break;
908 case 'g':
909 resgid = strtoul(optarg, &tmp, 0);
910 if (*tmp) {
911 gr = getgrnam(optarg);
912 if (gr == NULL)
913 tmp = optarg;
914 else {
915 resgid = gr->gr_gid;
916 *tmp = 0;
917 }
918 }
919 if (*tmp) {
920 com_err(program_name, 0,
921 _("bad gid/group name - %s"),
922 optarg);
923 usage();
924 }
925 g_flag = 1;
926 open_flag = EXT2_FLAG_RW;
927 break;
928 case 'i':
929 interval = strtoul(optarg, &tmp, 0);
930 switch (*tmp) {
931 case 's':
932 tmp++;
933 break;
934 case '\0':
935 case 'd':
936 case 'D': /* days */
937 interval *= 86400;
938 if (*tmp != '\0')
939 tmp++;
940 break;
941 case 'm':
942 case 'M': /* months! */
943 interval *= 86400 * 30;
944 tmp++;
945 break;
946 case 'w':
947 case 'W': /* weeks */
948 interval *= 86400 * 7;
949 tmp++;
950 break;
951 }
952 if (*tmp) {
953 com_err(program_name, 0,
954 _("bad interval - %s"), optarg);
955 usage();
956 }
957 i_flag = 1;
958 open_flag = EXT2_FLAG_RW;
959 break;
960 case 'j':
961 if (!journal_size)
962 journal_size = -1;
963 open_flag = EXT2_FLAG_RW;
964 break;
965 case 'J':
966 parse_journal_opts(optarg);
967 open_flag = EXT2_FLAG_RW;
968 break;
969 case 'l':
970 l_flag = 1;
971 break;
972 case 'L':
973 new_label = optarg;
974 L_flag = 1;
975 open_flag |= EXT2_FLAG_RW |
976 EXT2_FLAG_JOURNAL_DEV_OK;
977 break;
978 case 'm':
979 reserved_ratio = strtod(optarg, &tmp);
980 if (*tmp || reserved_ratio > 50 ||
981 reserved_ratio < 0) {
982 com_err(program_name, 0,
983 _("bad reserved block ratio - %s"),
984 optarg);
985 usage();
986 }
987 m_flag = 1;
988 open_flag = EXT2_FLAG_RW;
989 break;
990 case 'M':
991 new_last_mounted = optarg;
992 M_flag = 1;
993 open_flag = EXT2_FLAG_RW;
994 break;
995 case 'o':
996 if (mntopts_cmd) {
997 com_err(program_name, 0,
998 _("-o may only be specified once"));
999 usage();
1000 }
1001 mntopts_cmd = optarg;
1002 open_flag = EXT2_FLAG_RW;
1003 break;
1004 case 'O':
1005 if (features_cmd) {
1006 com_err(program_name, 0,
1007 _("-O may only be specified once"));
1008 usage();
1009 }
1010 features_cmd = optarg;
1011 open_flag = EXT2_FLAG_RW;
1012 break;
1013 case 'Q':
1014 Q_flag = 1;
1015 parse_quota_opts(optarg);
1016 open_flag = EXT2_FLAG_RW;
1017 break;
1018 case 'r':
1019 reserved_blocks = strtoul(optarg, &tmp, 0);
1020 if (*tmp) {
1021 com_err(program_name, 0,
1022 _("bad reserved blocks count - %s"),
1023 optarg);
1024 usage();
1025 }
1026 r_flag = 1;
1027 open_flag = EXT2_FLAG_RW;
1028 break;
1029 case 's': /* Deprecated */
1030 s_flag = atoi(optarg);
1031 open_flag = EXT2_FLAG_RW;
1032 break;
1033 case 'T':
1034 T_flag = 1;
1035 last_check_time = parse_time(optarg);
1036 open_flag = EXT2_FLAG_RW;
1037 break;
1038 case 'u':
1039 resuid = strtoul(optarg, &tmp, 0);
1040 if (*tmp) {
1041 pw = getpwnam(optarg);
1042 if (pw == NULL)
1043 tmp = optarg;
1044 else {
1045 resuid = pw->pw_uid;
1046 *tmp = 0;
1047 }
1048 }
1049 if (*tmp) {
1050 com_err(program_name, 0,
1051 _("bad uid/user name - %s"),
1052 optarg);
1053 usage();
1054 }
1055 u_flag = 1;
1056 open_flag = EXT2_FLAG_RW;
1057 break;
1058 case 'U':
1059 new_UUID = optarg;
1060 U_flag = 1;
1061 open_flag = EXT2_FLAG_RW |
1062 EXT2_FLAG_JOURNAL_DEV_OK;
1063 break;
1064 case 'I':
1065 new_inode_size = strtoul(optarg, &tmp, 0);
1066 if (*tmp) {
1067 com_err(program_name, 0,
1068 _("bad inode size - %s"),
1069 optarg);
1070 usage();
1071 }
1072 if (!((new_inode_size &
1073 (new_inode_size - 1)) == 0)) {
1074 com_err(program_name, 0,
1075 _("Inode size must be a "
1076 "power of two- %s"),
1077 optarg);
1078 usage();
1079 }
1080 open_flag = EXT2_FLAG_RW;
1081 I_flag = 1;
1082 break;
1083 default:
1084 usage();
1085 }
1086 if (optind < argc - 1 || optind == argc)
1087 usage();
1088 if (!open_flag && !l_flag)
1089 usage();
1090 io_options = strchr(argv[optind], '?');
1091 if (io_options)
1092 *io_options++ = 0;
1093 device_name = blkid_get_devname(NULL, argv[optind], NULL);
1094 if (!device_name) {
1095 com_err("tune2fs", 0, _("Unable to resolve '%s'"),
1096 argv[optind]);
1097 exit(1);
1098 }
1099 }
1100
1101 #ifdef CONFIG_BUILD_FINDFS
1102 void do_findfs(int argc, char **argv)
1103 {
1104 char *dev;
1105
1106 if ((argc != 2) ||
1107 (strncmp(argv[1], "LABEL=", 6) && strncmp(argv[1], "UUID=", 5))) {
1108 fprintf(stderr, "Usage: findfs LABEL=<label>|UUID=<uuid>\n");
1109 exit(2);
1110 }
1111 dev = blkid_get_devname(NULL, argv[1], NULL);
1112 if (!dev) {
1113 com_err("findfs", 0, _("Unable to resolve '%s'"),
1114 argv[1]);
1115 exit(1);
1116 }
1117 puts(dev);
1118 exit(0);
1119 }
1120 #endif
1121
1122 static int parse_extended_opts(ext2_filsys fs, const char *opts)
1123 {
1124 char *buf, *token, *next, *p, *arg;
1125 int len, hash_alg;
1126 int r_usage = 0;
1127
1128 len = strlen(opts);
1129 buf = malloc(len+1);
1130 if (!buf) {
1131 fprintf(stderr,
1132 _("Couldn't allocate memory to parse options!\n"));
1133 return 1;
1134 }
1135 strcpy(buf, opts);
1136 for (token = buf; token && *token; token = next) {
1137 p = strchr(token, ',');
1138 next = 0;
1139 if (p) {
1140 *p = 0;
1141 next = p+1;
1142 }
1143 arg = strchr(token, '=');
1144 if (arg) {
1145 *arg = 0;
1146 arg++;
1147 }
1148 if (strcmp(token, "clear-mmp") == 0 ||
1149 strcmp(token, "clear_mmp") == 0) {
1150 clear_mmp = 1;
1151 } else if (strcmp(token, "mmp_update_interval") == 0) {
1152 unsigned long interval;
1153 if (!arg) {
1154 r_usage++;
1155 continue;
1156 }
1157 interval = strtoul(arg, &p, 0);
1158 if (*p) {
1159 fprintf(stderr,
1160 _("Invalid mmp_update_interval: %s\n"),
1161 arg);
1162 r_usage++;
1163 continue;
1164 }
1165 if (interval == 0) {
1166 interval = EXT4_MMP_UPDATE_INTERVAL;
1167 } else if (interval > EXT4_MMP_MAX_UPDATE_INTERVAL) {
1168 fprintf(stderr,
1169 _("mmp_update_interval too big: %lu\n"),
1170 interval);
1171 r_usage++;
1172 continue;
1173 }
1174 printf(P_("Setting multiple mount protection update "
1175 "interval to %lu second\n",
1176 "Setting multiple mount protection update "
1177 "interval to %lu seconds\n", interval),
1178 interval);
1179 fs->super->s_mmp_update_interval = interval;
1180 ext2fs_mark_super_dirty(fs);
1181 } else if (!strcmp(token, "test_fs")) {
1182 fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
1183 printf("Setting test filesystem flag\n");
1184 ext2fs_mark_super_dirty(fs);
1185 } else if (!strcmp(token, "^test_fs")) {
1186 fs->super->s_flags &= ~EXT2_FLAGS_TEST_FILESYS;
1187 printf("Clearing test filesystem flag\n");
1188 ext2fs_mark_super_dirty(fs);
1189 } else if (strcmp(token, "stride") == 0) {
1190 if (!arg) {
1191 r_usage++;
1192 continue;
1193 }
1194 stride = strtoul(arg, &p, 0);
1195 if (*p) {
1196 fprintf(stderr,
1197 _("Invalid RAID stride: %s\n"),
1198 arg);
1199 r_usage++;
1200 continue;
1201 }
1202 stride_set = 1;
1203 } else if (strcmp(token, "stripe-width") == 0 ||
1204 strcmp(token, "stripe_width") == 0) {
1205 if (!arg) {
1206 r_usage++;
1207 continue;
1208 }
1209 stripe_width = strtoul(arg, &p, 0);
1210 if (*p) {
1211 fprintf(stderr,
1212 _("Invalid RAID stripe-width: %s\n"),
1213 arg);
1214 r_usage++;
1215 continue;
1216 }
1217 stripe_width_set = 1;
1218 } else if (strcmp(token, "hash_alg") == 0 ||
1219 strcmp(token, "hash-alg") == 0) {
1220 if (!arg) {
1221 r_usage++;
1222 continue;
1223 }
1224 hash_alg = e2p_string2hash(arg);
1225 if (hash_alg < 0) {
1226 fprintf(stderr,
1227 _("Invalid hash algorithm: %s\n"),
1228 arg);
1229 r_usage++;
1230 continue;
1231 }
1232 fs->super->s_def_hash_version = hash_alg;
1233 printf(_("Setting default hash algorithm "
1234 "to %s (%d)\n"),
1235 arg, hash_alg);
1236 ext2fs_mark_super_dirty(fs);
1237 } else if (!strcmp(token, "mount_opts")) {
1238 if (!arg) {
1239 r_usage++;
1240 continue;
1241 }
1242 if (strlen(arg) >= sizeof(fs->super->s_mount_opts)) {
1243 fprintf(stderr,
1244 "Extended mount options too long\n");
1245 continue;
1246 }
1247 ext_mount_opts = strdup(arg);
1248 } else
1249 r_usage++;
1250 }
1251 if (r_usage) {
1252 fprintf(stderr, _("\nBad options specified.\n\n"
1253 "Extended options are separated by commas, "
1254 "and may take an argument which\n"
1255 "\tis set off by an equals ('=') sign.\n\n"
1256 "Valid extended options are:\n"
1257 "\tclear_mmp\n"
1258 "\thash_alg=<hash algorithm>\n"
1259 "\tmount_opts=<extended default mount options>\n"
1260 "\tstride=<RAID per-disk chunk size in blocks>\n"
1261 "\tstripe_width=<RAID stride*data disks in blocks>\n"
1262 "\ttest_fs\n"
1263 "\t^test_fs\n"));
1264 free(buf);
1265 return 1;
1266 }
1267 free(buf);
1268
1269 return 0;
1270 }
1271
1272 /*
1273 * Fill in the block bitmap bmap with the information regarding the
1274 * blocks to be moved
1275 */
1276 static int get_move_bitmaps(ext2_filsys fs, int new_ino_blks_per_grp,
1277 ext2fs_block_bitmap bmap)
1278 {
1279 dgrp_t i;
1280 int retval;
1281 ext2_badblocks_list bb_list = 0;
1282 blk64_t j, needed_blocks = 0;
1283 blk64_t start_blk, end_blk;
1284
1285 retval = ext2fs_read_bb_inode(fs, &bb_list);
1286 if (retval)
1287 return retval;
1288
1289 for (i = 0; i < fs->group_desc_count; i++) {
1290 start_blk = ext2fs_inode_table_loc(fs, i) +
1291 fs->inode_blocks_per_group;
1292
1293 end_blk = ext2fs_inode_table_loc(fs, i) +
1294 new_ino_blks_per_grp;
1295
1296 for (j = start_blk; j < end_blk; j++) {
1297 if (ext2fs_test_block_bitmap2(fs->block_map, j)) {
1298 /*
1299 * IF the block is a bad block we fail
1300 */
1301 if (ext2fs_badblocks_list_test(bb_list, j)) {
1302 ext2fs_badblocks_list_free(bb_list);
1303 return ENOSPC;
1304 }
1305
1306 ext2fs_mark_block_bitmap2(bmap, j);
1307 } else {
1308 /*
1309 * We are going to use this block for
1310 * inode table. So mark them used.
1311 */
1312 ext2fs_mark_block_bitmap2(fs->block_map, j);
1313 }
1314 }
1315 needed_blocks += end_blk - start_blk;
1316 }
1317
1318 ext2fs_badblocks_list_free(bb_list);
1319 if (needed_blocks > ext2fs_free_blocks_count(fs->super))
1320 return ENOSPC;
1321
1322 return 0;
1323 }
1324
1325 static int ext2fs_is_meta_block(ext2_filsys fs, blk_t blk)
1326 {
1327 dgrp_t group;
1328 group = ext2fs_group_of_blk(fs, blk);
1329 if (ext2fs_block_bitmap_loc(fs, group) == blk)
1330 return 1;
1331 if (ext2fs_inode_bitmap_loc(fs, group) == blk)
1332 return 1;
1333 return 0;
1334 }
1335
1336 static int ext2fs_is_block_in_group(ext2_filsys fs, dgrp_t group, blk_t blk)
1337 {
1338 blk_t start_blk, end_blk;
1339 start_blk = fs->super->s_first_data_block +
1340 EXT2_BLOCKS_PER_GROUP(fs->super) * group;
1341 /*
1342 * We cannot get new block beyond end_blk for for the last block group
1343 * so we can check with EXT2_BLOCKS_PER_GROUP even for last block group
1344 */
1345 end_blk = start_blk + EXT2_BLOCKS_PER_GROUP(fs->super);
1346 if (blk >= start_blk && blk <= end_blk)
1347 return 1;
1348 return 0;
1349 }
1350
1351 static int move_block(ext2_filsys fs, ext2fs_block_bitmap bmap)
1352 {
1353
1354 char *buf;
1355 dgrp_t group = 0;
1356 errcode_t retval;
1357 int meta_data = 0;
1358 blk64_t blk, new_blk, goal;
1359 struct blk_move *bmv;
1360
1361 retval = ext2fs_get_mem(fs->blocksize, &buf);
1362 if (retval)
1363 return retval;
1364
1365 for (new_blk = blk = fs->super->s_first_data_block;
1366 blk < ext2fs_blocks_count(fs->super); blk++) {
1367 if (!ext2fs_test_block_bitmap2(bmap, blk))
1368 continue;
1369
1370 if (ext2fs_is_meta_block(fs, blk)) {
1371 /*
1372 * If the block is mapping a fs meta data block
1373 * like group desc/block bitmap/inode bitmap. We
1374 * should find a block in the same group and fix
1375 * the respective fs metadata pointers. Otherwise
1376 * fail
1377 */
1378 group = ext2fs_group_of_blk(fs, blk);
1379 goal = ext2fs_group_first_block2(fs, group);
1380 meta_data = 1;
1381
1382 } else {
1383 goal = new_blk;
1384 }
1385 retval = ext2fs_new_block2(fs, goal, NULL, &new_blk);
1386 if (retval)
1387 goto err_out;
1388
1389 /* new fs meta data block should be in the same group */
1390 if (meta_data && !ext2fs_is_block_in_group(fs, group, new_blk)) {
1391 retval = ENOSPC;
1392 goto err_out;
1393 }
1394
1395 /* Mark this block as allocated */
1396 ext2fs_mark_block_bitmap2(fs->block_map, new_blk);
1397
1398 /* Add it to block move list */
1399 retval = ext2fs_get_mem(sizeof(struct blk_move), &bmv);
1400 if (retval)
1401 goto err_out;
1402
1403 bmv->old_loc = blk;
1404 bmv->new_loc = new_blk;
1405
1406 list_add(&(bmv->list), &blk_move_list);
1407
1408 retval = io_channel_read_blk64(fs->io, blk, 1, buf);
1409 if (retval)
1410 goto err_out;
1411
1412 retval = io_channel_write_blk64(fs->io, new_blk, 1, buf);
1413 if (retval)
1414 goto err_out;
1415 }
1416
1417 err_out:
1418 ext2fs_free_mem(&buf);
1419 return retval;
1420 }
1421
1422 static blk64_t translate_block(blk64_t blk)
1423 {
1424 struct list_head *entry;
1425 struct blk_move *bmv;
1426
1427 list_for_each(entry, &blk_move_list) {
1428 bmv = list_entry(entry, struct blk_move, list);
1429 if (bmv->old_loc == blk)
1430 return bmv->new_loc;
1431 }
1432
1433 return 0;
1434 }
1435
1436 static int process_block(ext2_filsys fs EXT2FS_ATTR((unused)),
1437 blk64_t *block_nr,
1438 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1439 blk64_t ref_block EXT2FS_ATTR((unused)),
1440 int ref_offset EXT2FS_ATTR((unused)),
1441 void *priv_data)
1442 {
1443 int ret = 0;
1444 blk64_t new_blk;
1445 ext2fs_block_bitmap bmap = (ext2fs_block_bitmap) priv_data;
1446
1447 if (!ext2fs_test_block_bitmap2(bmap, *block_nr))
1448 return 0;
1449 new_blk = translate_block(*block_nr);
1450 if (new_blk) {
1451 *block_nr = new_blk;
1452 /*
1453 * This will force the ext2fs_write_inode in the iterator
1454 */
1455 ret |= BLOCK_CHANGED;
1456 }
1457
1458 return ret;
1459 }
1460
1461 static int inode_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1462 {
1463 errcode_t retval = 0;
1464 ext2_ino_t ino;
1465 blk64_t blk;
1466 char *block_buf = 0;
1467 struct ext2_inode inode;
1468 ext2_inode_scan scan = NULL;
1469
1470 retval = ext2fs_get_mem(fs->blocksize * 3, &block_buf);
1471 if (retval)
1472 return retval;
1473
1474 retval = ext2fs_open_inode_scan(fs, 0, &scan);
1475 if (retval)
1476 goto err_out;
1477
1478 while (1) {
1479 retval = ext2fs_get_next_inode(scan, &ino, &inode);
1480 if (retval)
1481 goto err_out;
1482
1483 if (!ino)
1484 break;
1485
1486 if (inode.i_links_count == 0)
1487 continue; /* inode not in use */
1488
1489 /* FIXME!!
1490 * If we end up modifying the journal inode
1491 * the sb->s_jnl_blocks will differ. But a
1492 * subsequent e2fsck fixes that.
1493 * Do we need to fix this ??
1494 */
1495
1496 if (ext2fs_file_acl_block(fs, &inode) &&
1497 ext2fs_test_block_bitmap2(bmap,
1498 ext2fs_file_acl_block(fs, &inode))) {
1499 blk = translate_block(ext2fs_file_acl_block(fs,
1500 &inode));
1501 if (!blk)
1502 continue;
1503
1504 ext2fs_file_acl_block_set(fs, &inode, blk);
1505
1506 /*
1507 * Write the inode to disk so that inode table
1508 * resizing can work
1509 */
1510 retval = ext2fs_write_inode(fs, ino, &inode);
1511 if (retval)
1512 goto err_out;
1513 }
1514
1515 if (!ext2fs_inode_has_valid_blocks2(fs, &inode))
1516 continue;
1517
1518 retval = ext2fs_block_iterate3(fs, ino, 0, block_buf,
1519 process_block, bmap);
1520 if (retval)
1521 goto err_out;
1522
1523 }
1524
1525 err_out:
1526 ext2fs_free_mem(&block_buf);
1527
1528 return retval;
1529 }
1530
1531 /*
1532 * We need to scan for inode and block bitmaps that may need to be
1533 * moved. This can take place if the filesystem was formatted for
1534 * RAID arrays using the mke2fs's extended option "stride".
1535 */
1536 static int group_desc_scan_and_fix(ext2_filsys fs, ext2fs_block_bitmap bmap)
1537 {
1538 dgrp_t i;
1539 blk_t blk, new_blk;
1540
1541 for (i = 0; i < fs->group_desc_count; i++) {
1542 blk = ext2fs_block_bitmap_loc(fs, i);
1543 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1544 new_blk = translate_block(blk);
1545 if (!new_blk)
1546 continue;
1547 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
1548 }
1549
1550 blk = ext2fs_inode_bitmap_loc(fs, i);
1551 if (ext2fs_test_block_bitmap2(bmap, blk)) {
1552 new_blk = translate_block(blk);
1553 if (!new_blk)
1554 continue;
1555 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
1556 }
1557 }
1558 return 0;
1559 }
1560
1561 static int expand_inode_table(ext2_filsys fs, unsigned long new_ino_size)
1562 {
1563 dgrp_t i;
1564 blk64_t blk;
1565 errcode_t retval;
1566 int new_ino_blks_per_grp;
1567 unsigned int j;
1568 char *old_itable = NULL, *new_itable = NULL;
1569 char *tmp_old_itable = NULL, *tmp_new_itable = NULL;
1570 unsigned long old_ino_size;
1571 int old_itable_size, new_itable_size;
1572
1573 old_itable_size = fs->inode_blocks_per_group * fs->blocksize;
1574 old_ino_size = EXT2_INODE_SIZE(fs->super);
1575
1576 new_ino_blks_per_grp = ext2fs_div_ceil(
1577 EXT2_INODES_PER_GROUP(fs->super) *
1578 new_ino_size,
1579 fs->blocksize);
1580
1581 new_itable_size = new_ino_blks_per_grp * fs->blocksize;
1582
1583 retval = ext2fs_get_mem(old_itable_size, &old_itable);
1584 if (retval)
1585 return retval;
1586
1587 retval = ext2fs_get_mem(new_itable_size, &new_itable);
1588 if (retval)
1589 goto err_out;
1590
1591 tmp_old_itable = old_itable;
1592 tmp_new_itable = new_itable;
1593
1594 for (i = 0; i < fs->group_desc_count; i++) {
1595 blk = ext2fs_inode_table_loc(fs, i);
1596 retval = io_channel_read_blk64(fs->io, blk,
1597 fs->inode_blocks_per_group, old_itable);
1598 if (retval)
1599 goto err_out;
1600
1601 for (j = 0; j < EXT2_INODES_PER_GROUP(fs->super); j++) {
1602 memcpy(new_itable, old_itable, old_ino_size);
1603
1604 memset(new_itable+old_ino_size, 0,
1605 new_ino_size - old_ino_size);
1606
1607 new_itable += new_ino_size;
1608 old_itable += old_ino_size;
1609 }
1610
1611 /* reset the pointer */
1612 old_itable = tmp_old_itable;
1613 new_itable = tmp_new_itable;
1614
1615 retval = io_channel_write_blk64(fs->io, blk,
1616 new_ino_blks_per_grp, new_itable);
1617 if (retval)
1618 goto err_out;
1619 }
1620
1621 /* Update the meta data */
1622 fs->inode_blocks_per_group = new_ino_blks_per_grp;
1623 fs->super->s_inode_size = new_ino_size;
1624
1625 err_out:
1626 if (old_itable)
1627 ext2fs_free_mem(&old_itable);
1628
1629 if (new_itable)
1630 ext2fs_free_mem(&new_itable);
1631
1632 return retval;
1633 }
1634
1635 static errcode_t ext2fs_calculate_summary_stats(ext2_filsys fs)
1636 {
1637 blk64_t blk;
1638 ext2_ino_t ino;
1639 unsigned int group = 0;
1640 unsigned int count = 0;
1641 int total_free = 0;
1642 int group_free = 0;
1643
1644 /*
1645 * First calculate the block statistics
1646 */
1647 for (blk = fs->super->s_first_data_block;
1648 blk < ext2fs_blocks_count(fs->super); blk++) {
1649 if (!ext2fs_fast_test_block_bitmap2(fs->block_map, blk)) {
1650 group_free++;
1651 total_free++;
1652 }
1653 count++;
1654 if ((count == fs->super->s_blocks_per_group) ||
1655 (blk == ext2fs_blocks_count(fs->super)-1)) {
1656 ext2fs_bg_free_blocks_count_set(fs, group++,
1657 group_free);
1658 count = 0;
1659 group_free = 0;
1660 }
1661 }
1662 total_free = EXT2FS_C2B(fs, total_free);
1663 ext2fs_free_blocks_count_set(fs->super, total_free);
1664
1665 /*
1666 * Next, calculate the inode statistics
1667 */
1668 group_free = 0;
1669 total_free = 0;
1670 count = 0;
1671 group = 0;
1672
1673 /* Protect loop from wrap-around if s_inodes_count maxed */
1674 for (ino = 1; ino <= fs->super->s_inodes_count && ino > 0; ino++) {
1675 if (!ext2fs_fast_test_inode_bitmap2(fs->inode_map, ino)) {
1676 group_free++;
1677 total_free++;
1678 }
1679 count++;
1680 if ((count == fs->super->s_inodes_per_group) ||
1681 (ino == fs->super->s_inodes_count)) {
1682 ext2fs_bg_free_inodes_count_set(fs, group++,
1683 group_free);
1684 count = 0;
1685 group_free = 0;
1686 }
1687 }
1688 fs->super->s_free_inodes_count = total_free;
1689 ext2fs_mark_super_dirty(fs);
1690 return 0;
1691 }
1692
1693 #define list_for_each_safe(pos, pnext, head) \
1694 for (pos = (head)->next, pnext = pos->next; pos != (head); \
1695 pos = pnext, pnext = pos->next)
1696
1697 static void free_blk_move_list(void)
1698 {
1699 struct list_head *entry, *tmp;
1700 struct blk_move *bmv;
1701
1702 list_for_each_safe(entry, tmp, &blk_move_list) {
1703 bmv = list_entry(entry, struct blk_move, list);
1704 list_del(entry);
1705 ext2fs_free_mem(&bmv);
1706 }
1707 return;
1708 }
1709
1710 static int resize_inode(ext2_filsys fs, unsigned long new_size)
1711 {
1712 errcode_t retval;
1713 int new_ino_blks_per_grp;
1714 ext2fs_block_bitmap bmap;
1715
1716 retval = ext2fs_read_inode_bitmap(fs);
1717 if (retval) {
1718 fputs(_("Failed to read inode bitmap\n"), stderr);
1719 return retval;
1720 }
1721 retval = ext2fs_read_block_bitmap(fs);
1722 if (retval) {
1723 fputs(_("Failed to read block bitmap\n"), stderr);
1724 return retval;
1725 }
1726 INIT_LIST_HEAD(&blk_move_list);
1727
1728
1729 new_ino_blks_per_grp = ext2fs_div_ceil(
1730 EXT2_INODES_PER_GROUP(fs->super)*
1731 new_size,
1732 fs->blocksize);
1733
1734 /* We may change the file system.
1735 * Mark the file system as invalid so that
1736 * the user is prompted to run fsck.
1737 */
1738 fs->super->s_state &= ~EXT2_VALID_FS;
1739
1740 retval = ext2fs_allocate_block_bitmap(fs, _("blocks to be moved"),
1741 &bmap);
1742 if (retval) {
1743 fputs(_("Failed to allocate block bitmap when "
1744 "increasing inode size\n"), stderr);
1745 return retval;
1746 }
1747 retval = get_move_bitmaps(fs, new_ino_blks_per_grp, bmap);
1748 if (retval) {
1749 fputs(_("Not enough space to increase inode size \n"), stderr);
1750 goto err_out;
1751 }
1752 retval = move_block(fs, bmap);
1753 if (retval) {
1754 fputs(_("Failed to relocate blocks during inode resize \n"),
1755 stderr);
1756 goto err_out;
1757 }
1758 retval = inode_scan_and_fix(fs, bmap);
1759 if (retval)
1760 goto err_out_undo;
1761
1762 retval = group_desc_scan_and_fix(fs, bmap);
1763 if (retval)
1764 goto err_out_undo;
1765
1766 retval = expand_inode_table(fs, new_size);
1767 if (retval)
1768 goto err_out_undo;
1769
1770 ext2fs_calculate_summary_stats(fs);
1771
1772 fs->super->s_state |= EXT2_VALID_FS;
1773 /* mark super block and block bitmap as dirty */
1774 ext2fs_mark_super_dirty(fs);
1775 ext2fs_mark_bb_dirty(fs);
1776
1777 err_out:
1778 free_blk_move_list();
1779 ext2fs_free_block_bitmap(bmap);
1780
1781 return retval;
1782
1783 err_out_undo:
1784 free_blk_move_list();
1785 ext2fs_free_block_bitmap(bmap);
1786 fputs(_("Error in resizing the inode size.\n"
1787 "Run e2undo to undo the "
1788 "file system changes. \n"), stderr);
1789
1790 return retval;
1791 }
1792
1793 static int tune2fs_setup_tdb(const char *name, io_manager *io_ptr)
1794 {
1795 errcode_t retval = 0;
1796 const char *tdb_dir;
1797 char *tdb_file;
1798 char *dev_name, *tmp_name;
1799
1800 #if 0 /* FIXME!! */
1801 /*
1802 * Configuration via a conf file would be
1803 * nice
1804 */
1805 profile_get_string(profile, "scratch_files",
1806 "directory", 0, 0,
1807 &tdb_dir);
1808 #endif
1809 tmp_name = strdup(name);
1810 if (!tmp_name) {
1811 alloc_fn_fail:
1812 com_err(program_name, ENOMEM,
1813 _("Couldn't allocate memory for tdb filename\n"));
1814 return ENOMEM;
1815 }
1816 dev_name = basename(tmp_name);
1817
1818 tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
1819 if (!tdb_dir)
1820 tdb_dir = "/var/lib/e2fsprogs";
1821
1822 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
1823 access(tdb_dir, W_OK))
1824 return 0;
1825
1826 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
1827 if (!tdb_file)
1828 goto alloc_fn_fail;
1829 sprintf(tdb_file, "%s/tune2fs-%s.e2undo", tdb_dir, dev_name);
1830
1831 if (!access(tdb_file, F_OK)) {
1832 if (unlink(tdb_file) < 0) {
1833 retval = errno;
1834 com_err(program_name, retval,
1835 _("while trying to delete %s"),
1836 tdb_file);
1837 free(tdb_file);
1838 return retval;
1839 }
1840 }
1841
1842 set_undo_io_backing_manager(*io_ptr);
1843 *io_ptr = undo_io_manager;
1844 set_undo_io_backup_file(tdb_file);
1845 printf(_("To undo the tune2fs operation please run "
1846 "the command\n e2undo %s %s\n\n"),
1847 tdb_file, name);
1848 free(tdb_file);
1849 free(tmp_name);
1850 return retval;
1851 }
1852
1853 int main(int argc, char **argv)
1854 {
1855 errcode_t retval;
1856 ext2_filsys fs;
1857 struct ext2_super_block *sb;
1858 io_manager io_ptr, io_ptr_orig = NULL;
1859 int rc = 0;
1860
1861 #ifdef ENABLE_NLS
1862 setlocale(LC_MESSAGES, "");
1863 setlocale(LC_CTYPE, "");
1864 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
1865 textdomain(NLS_CAT_NAME);
1866 set_com_err_gettext(gettext);
1867 #endif
1868 if (argc && *argv)
1869 program_name = *argv;
1870 add_error_table(&et_ext2_error_table);
1871
1872 #ifdef CONFIG_BUILD_FINDFS
1873 if (strcmp(get_progname(argv[0]), "findfs") == 0)
1874 do_findfs(argc, argv);
1875 #endif
1876 if (strcmp(get_progname(argv[0]), "e2label") == 0)
1877 parse_e2label_options(argc, argv);
1878 else
1879 parse_tune2fs_options(argc, argv);
1880
1881 #ifdef CONFIG_TESTIO_DEBUG
1882 if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_DEBUG")) {
1883 io_ptr = test_io_manager;
1884 test_io_backing_manager = unix_io_manager;
1885 } else
1886 #endif
1887 io_ptr = unix_io_manager;
1888
1889 retry_open:
1890 if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
1891 open_flag |= EXT2_FLAG_SKIP_MMP;
1892
1893 open_flag |= EXT2_FLAG_64BITS;
1894
1895 /* keep the filesystem struct around to dump MMP data */
1896 open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
1897
1898 retval = ext2fs_open2(device_name, io_options, open_flag,
1899 0, 0, io_ptr, &fs);
1900 if (retval) {
1901 com_err(program_name, retval,
1902 _("while trying to open %s"),
1903 device_name);
1904 if (retval == EXT2_ET_MMP_FSCK_ON ||
1905 retval == EXT2_ET_MMP_UNKNOWN_SEQ)
1906 dump_mmp_msg(fs->mmp_buf,
1907 _("If you are sure the filesystem "
1908 "is not in use on any node, run:\n"
1909 "'tune2fs -f -E clear_mmp {device}'\n"));
1910 else if (retval == EXT2_ET_MMP_FAILED)
1911 dump_mmp_msg(fs->mmp_buf, NULL);
1912 else if (retval == EXT2_ET_MMP_MAGIC_INVALID)
1913 fprintf(stderr,
1914 _("MMP block magic is bad. Try to fix it by "
1915 "running:\n'e2fsck -f %s'\n"), device_name);
1916 else if (retval != EXT2_ET_MMP_FAILED)
1917 fprintf(stderr,
1918 _("Couldn't find valid filesystem superblock.\n"));
1919
1920 ext2fs_free(fs);
1921 exit(1);
1922 }
1923 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
1924
1925 if (I_flag && !io_ptr_orig) {
1926 /*
1927 * Check the inode size is right so we can issue an
1928 * error message and bail before setting up the tdb
1929 * file.
1930 */
1931 if (new_inode_size == EXT2_INODE_SIZE(fs->super)) {
1932 fprintf(stderr, _("The inode size is already %lu\n"),
1933 new_inode_size);
1934 rc = 1;
1935 goto closefs;
1936 }
1937 if (new_inode_size < EXT2_INODE_SIZE(fs->super)) {
1938 fprintf(stderr, _("Shrinking the inode size is "
1939 "not supported\n"));
1940 rc = 1;
1941 goto closefs;
1942 }
1943
1944 /*
1945 * If inode resize is requested use the
1946 * Undo I/O manager
1947 */
1948 io_ptr_orig = io_ptr;
1949 retval = tune2fs_setup_tdb(device_name, &io_ptr);
1950 if (retval) {
1951 rc = 1;
1952 goto closefs;
1953 }
1954 if (io_ptr != io_ptr_orig) {
1955 ext2fs_close(fs);
1956 goto retry_open;
1957 }
1958 }
1959
1960 sb = fs->super;
1961 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
1962
1963 if (print_label) {
1964 /* For e2label emulation */
1965 printf("%.*s\n", (int) sizeof(sb->s_volume_name),
1966 sb->s_volume_name);
1967 remove_error_table(&et_ext2_error_table);
1968 goto closefs;
1969 }
1970
1971 retval = ext2fs_check_if_mounted(device_name, &mount_flags);
1972 if (retval) {
1973 com_err("ext2fs_check_if_mount", retval,
1974 _("while determining whether %s is mounted."),
1975 device_name);
1976 rc = 1;
1977 goto closefs;
1978 }
1979 /* Normally we only need to write out the superblock */
1980 fs->flags |= EXT2_FLAG_SUPER_ONLY;
1981
1982 if (c_flag) {
1983 sb->s_max_mnt_count = max_mount_count;
1984 ext2fs_mark_super_dirty(fs);
1985 printf(_("Setting maximal mount count to %d\n"),
1986 max_mount_count);
1987 }
1988 if (C_flag) {
1989 sb->s_mnt_count = mount_count;
1990 ext2fs_mark_super_dirty(fs);
1991 printf(_("Setting current mount count to %d\n"), mount_count);
1992 }
1993 if (e_flag) {
1994 sb->s_errors = errors;
1995 ext2fs_mark_super_dirty(fs);
1996 printf(_("Setting error behavior to %d\n"), errors);
1997 }
1998 if (g_flag) {
1999 sb->s_def_resgid = resgid;
2000 ext2fs_mark_super_dirty(fs);
2001 printf(_("Setting reserved blocks gid to %lu\n"), resgid);
2002 }
2003 if (i_flag) {
2004 if (interval >= (1ULL << 32)) {
2005 com_err(program_name, 0,
2006 _("interval between checks is too big (%lu)"),
2007 interval);
2008 rc = 1;
2009 goto closefs;
2010 }
2011 sb->s_checkinterval = interval;
2012 ext2fs_mark_super_dirty(fs);
2013 printf(_("Setting interval between checks to %lu seconds\n"),
2014 interval);
2015 }
2016 if (m_flag) {
2017 ext2fs_r_blocks_count_set(sb, reserved_ratio *
2018 ext2fs_blocks_count(sb) / 100.0);
2019 ext2fs_mark_super_dirty(fs);
2020 printf (_("Setting reserved blocks percentage to %g%% (%llu blocks)\n"),
2021 reserved_ratio, ext2fs_r_blocks_count(sb));
2022 }
2023 if (r_flag) {
2024 if (reserved_blocks > ext2fs_blocks_count(sb)/2) {
2025 com_err(program_name, 0,
2026 _("reserved blocks count is too big (%llu)"),
2027 reserved_blocks);
2028 rc = 1;
2029 goto closefs;
2030 }
2031 ext2fs_r_blocks_count_set(sb, reserved_blocks);
2032 ext2fs_mark_super_dirty(fs);
2033 printf(_("Setting reserved blocks count to %llu\n"),
2034 reserved_blocks);
2035 }
2036 if (s_flag == 1) {
2037 if (sb->s_feature_ro_compat &
2038 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
2039 fputs(_("\nThe filesystem already has sparse "
2040 "superblocks.\n"), stderr);
2041 else {
2042 sb->s_feature_ro_compat |=
2043 EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
2044 sb->s_state &= ~EXT2_VALID_FS;
2045 ext2fs_mark_super_dirty(fs);
2046 printf(_("\nSparse superblock flag set. %s"),
2047 _(please_fsck));
2048 }
2049 }
2050 if (s_flag == 0) {
2051 fputs(_("\nClearing the sparse superflag not supported.\n"),
2052 stderr);
2053 rc = 1;
2054 goto closefs;
2055 }
2056 if (T_flag) {
2057 sb->s_lastcheck = last_check_time;
2058 ext2fs_mark_super_dirty(fs);
2059 printf(_("Setting time filesystem last checked to %s\n"),
2060 ctime(&last_check_time));
2061 }
2062 if (u_flag) {
2063 sb->s_def_resuid = resuid;
2064 ext2fs_mark_super_dirty(fs);
2065 printf(_("Setting reserved blocks uid to %lu\n"), resuid);
2066 }
2067 if (L_flag) {
2068 if (strlen(new_label) > sizeof(sb->s_volume_name))
2069 fputs(_("Warning: label too long, truncating.\n"),
2070 stderr);
2071 memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name));
2072 strncpy(sb->s_volume_name, new_label,
2073 sizeof(sb->s_volume_name));
2074 ext2fs_mark_super_dirty(fs);
2075 }
2076 if (M_flag) {
2077 memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted));
2078 strncpy(sb->s_last_mounted, new_last_mounted,
2079 sizeof(sb->s_last_mounted));
2080 ext2fs_mark_super_dirty(fs);
2081 }
2082 if (mntopts_cmd) {
2083 rc = update_mntopts(fs, mntopts_cmd);
2084 if (rc)
2085 goto closefs;
2086 }
2087 if (features_cmd) {
2088 rc = update_feature_set(fs, features_cmd);
2089 if (rc)
2090 goto closefs;
2091 }
2092 if (extended_cmd) {
2093 rc = parse_extended_opts(fs, extended_cmd);
2094 if (rc)
2095 goto closefs;
2096 if (clear_mmp && !f_flag) {
2097 fputs(_("Error in using clear_mmp. "
2098 "It must be used with -f\n"),
2099 stderr);
2100 goto closefs;
2101 }
2102 }
2103 if (clear_mmp) {
2104 rc = ext2fs_mmp_clear(fs);
2105 goto closefs;
2106 }
2107 if (journal_size || journal_device) {
2108 rc = add_journal(fs);
2109 if (rc)
2110 goto closefs;
2111 }
2112
2113 if (Q_flag) {
2114 if (mount_flags & EXT2_MF_MOUNTED) {
2115 fputs(_("The quota feature may only be changed when "
2116 "the filesystem is unmounted.\n"), stderr);
2117 rc = 1;
2118 goto closefs;
2119 }
2120 handle_quota_options(fs);
2121 }
2122
2123 if (U_flag) {
2124 int set_csum = 0;
2125 dgrp_t i;
2126
2127 if (sb->s_feature_ro_compat &
2128 EXT4_FEATURE_RO_COMPAT_GDT_CSUM) {
2129 /*
2130 * Determine if the block group checksums are
2131 * correct so we know whether or not to set
2132 * them later on.
2133 */
2134 for (i = 0; i < fs->group_desc_count; i++)
2135 if (!ext2fs_group_desc_csum_verify(fs, i))
2136 break;
2137 if (i >= fs->group_desc_count)
2138 set_csum = 1;
2139 }
2140 if ((strcasecmp(new_UUID, "null") == 0) ||
2141 (strcasecmp(new_UUID, "clear") == 0)) {
2142 uuid_clear(sb->s_uuid);
2143 } else if (strcasecmp(new_UUID, "time") == 0) {
2144 uuid_generate_time(sb->s_uuid);
2145 } else if (strcasecmp(new_UUID, "random") == 0) {
2146 uuid_generate(sb->s_uuid);
2147 } else if (uuid_parse(new_UUID, sb->s_uuid)) {
2148 com_err(program_name, 0, _("Invalid UUID format\n"));
2149 rc = 1;
2150 goto closefs;
2151 }
2152 if (set_csum) {
2153 for (i = 0; i < fs->group_desc_count; i++)
2154 ext2fs_group_desc_csum_set(fs, i);
2155 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2156 }
2157 ext2fs_mark_super_dirty(fs);
2158 }
2159 if (I_flag) {
2160 if (mount_flags & EXT2_MF_MOUNTED) {
2161 fputs(_("The inode size may only be "
2162 "changed when the filesystem is "
2163 "unmounted.\n"), stderr);
2164 rc = 1;
2165 goto closefs;
2166 }
2167 if (fs->super->s_feature_incompat &
2168 EXT4_FEATURE_INCOMPAT_FLEX_BG) {
2169 fputs(_("Changing the inode size not supported for "
2170 "filesystems with the flex_bg\n"
2171 "feature enabled.\n"),
2172 stderr);
2173 rc = 1;
2174 goto closefs;
2175 }
2176 /*
2177 * We want to update group descriptor also
2178 * with the new free inode count
2179 */
2180 fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
2181 if (resize_inode(fs, new_inode_size) == 0) {
2182 printf(_("Setting inode size %lu\n"),
2183 new_inode_size);
2184 } else {
2185 printf(_("Failed to change inode size\n"));
2186 rc = 1;
2187 goto closefs;
2188 }
2189 }
2190
2191 if (l_flag)
2192 list_super(sb);
2193 if (stride_set) {
2194 sb->s_raid_stride = stride;
2195 ext2fs_mark_super_dirty(fs);
2196 printf(_("Setting stride size to %d\n"), stride);
2197 }
2198 if (stripe_width_set) {
2199 sb->s_raid_stripe_width = stripe_width;
2200 ext2fs_mark_super_dirty(fs);
2201 printf(_("Setting stripe width to %d\n"), stripe_width);
2202 }
2203 if (ext_mount_opts) {
2204 strncpy((char *)(fs->super->s_mount_opts), ext_mount_opts,
2205 sizeof(fs->super->s_mount_opts));
2206 fs->super->s_mount_opts[sizeof(fs->super->s_mount_opts)-1] = 0;
2207 ext2fs_mark_super_dirty(fs);
2208 printf(_("Setting extended default mount options to '%s'\n"),
2209 ext_mount_opts);
2210 free(ext_mount_opts);
2211 }
2212 free(device_name);
2213 remove_error_table(&et_ext2_error_table);
2214
2215 closefs:
2216 if (rc) {
2217 ext2fs_mmp_stop(fs);
2218 exit(1);
2219 }
2220
2221 return (ext2fs_close(fs) ? 1 : 0);
2222 }
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