1 /*
2 * dumpe2fs.c - List the control structures of a second
3 * extended filesystem
4 *
5 * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
6 * Laboratoire MASI, Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *
9 * Copyright 1995, 1996, 1997 by Theodore Ts'o.
10 *
11 * %Begin-Header%
12 * This file may be redistributed under the terms of the GNU Public
13 * License.
14 * %End-Header%
15 */
16
17 /*
18 * History:
19 * 94/01/09 - Creation
20 * 94/02/27 - Ported to use the ext2fs library
21 */
22
23 #include "config.h"
24 #ifdef HAVE_GETOPT_H
25 #include <getopt.h>
26 #else
27 extern char *optarg;
28 extern int optind;
29 #endif
30 #include <fcntl.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <unistd.h>
35
36 #include "ext2fs/ext2_fs.h"
37
38 #include "ext2fs/ext2fs.h"
39 #include "e2p/e2p.h"
40 #include "ext2fs/kernel-jbd.h"
41 #include <uuid/uuid.h>
42
43 #include "support/nls-enable.h"
44 #include "support/plausible.h"
45 #include "../version.h"
46
47 #define in_use(m, x) (ext2fs_test_bit ((x), (m)))
48
49 static const char * program_name = "dumpe2fs";
50 static char * device_name = NULL;
51 static int hex_format = 0;
52 static int blocks64 = 0;
53
usage(void)54 static void usage(void)
55 {
56 fprintf(stderr, _("Usage: %s [-bfghimxV] [-o superblock=<num>] "
57 "[-o blocksize=<num>] device\n"), program_name);
58 exit(1);
59 }
60
print_number(unsigned long long num)61 static void print_number(unsigned long long num)
62 {
63 if (hex_format) {
64 if (blocks64)
65 printf("0x%08llx", num);
66 else
67 printf("0x%04llx", num);
68 } else
69 printf("%llu", num);
70 }
71
print_range(unsigned long long a,unsigned long long b)72 static void print_range(unsigned long long a, unsigned long long b)
73 {
74 if (hex_format) {
75 if (blocks64)
76 printf("0x%08llx-0x%08llx", a, b);
77 else
78 printf("0x%04llx-0x%04llx", a, b);
79 } else
80 printf("%llu-%llu", a, b);
81 }
82
print_free(unsigned long group,char * bitmap,unsigned long num,unsigned long offset,int ratio)83 static void print_free(unsigned long group, char * bitmap,
84 unsigned long num, unsigned long offset, int ratio)
85 {
86 int p = 0;
87 unsigned long i;
88 unsigned long j;
89
90 offset /= ratio;
91 offset += group * num;
92 for (i = 0; i < num; i++)
93 if (!in_use (bitmap, i))
94 {
95 if (p)
96 printf (", ");
97 print_number((i + offset) * ratio);
98 for (j = i; j < num && !in_use (bitmap, j); j++)
99 ;
100 if (--j != i) {
101 fputc('-', stdout);
102 print_number((j + offset) * ratio);
103 i = j;
104 }
105 p = 1;
106 }
107 }
108
print_bg_opt(int bg_flags,int mask,const char * str,int * first)109 static void print_bg_opt(int bg_flags, int mask,
110 const char *str, int *first)
111 {
112 if (bg_flags & mask) {
113 if (*first) {
114 fputs(" [", stdout);
115 *first = 0;
116 } else
117 fputs(", ", stdout);
118 fputs(str, stdout);
119 }
120 }
print_bg_opts(ext2_filsys fs,dgrp_t i)121 static void print_bg_opts(ext2_filsys fs, dgrp_t i)
122 {
123 int first = 1, bg_flags = 0;
124
125 if (ext2fs_has_group_desc_csum(fs))
126 bg_flags = ext2fs_bg_flags(fs, i);
127
128 print_bg_opt(bg_flags, EXT2_BG_INODE_UNINIT, "INODE_UNINIT",
129 &first);
130 print_bg_opt(bg_flags, EXT2_BG_BLOCK_UNINIT, "BLOCK_UNINIT",
131 &first);
132 print_bg_opt(bg_flags, EXT2_BG_INODE_ZEROED, "ITABLE_ZEROED",
133 &first);
134 if (!first)
135 fputc(']', stdout);
136 fputc('\n', stdout);
137 }
138
print_bg_rel_offset(ext2_filsys fs,blk64_t block,int itable,blk64_t first_block,blk64_t last_block)139 static void print_bg_rel_offset(ext2_filsys fs, blk64_t block, int itable,
140 blk64_t first_block, blk64_t last_block)
141 {
142 if ((block >= first_block) && (block <= last_block)) {
143 if (itable && block == first_block)
144 return;
145 printf(" (+%u)", (unsigned)(block - first_block));
146 } else if (ext2fs_has_feature_flex_bg(fs->super)) {
147 dgrp_t flex_grp = ext2fs_group_of_blk2(fs, block);
148 printf(" (bg #%u + %u)", flex_grp,
149 (unsigned)(block-ext2fs_group_first_block2(fs,flex_grp)));
150 }
151 }
152
list_desc(ext2_filsys fs,int grp_only)153 static void list_desc(ext2_filsys fs, int grp_only)
154 {
155 unsigned long i;
156 blk64_t first_block, last_block;
157 blk64_t super_blk, old_desc_blk, new_desc_blk;
158 char *block_bitmap=NULL, *inode_bitmap=NULL;
159 const char *units = _("blocks");
160 int inode_blocks_per_group, old_desc_blocks, reserved_gdt;
161 int block_nbytes, inode_nbytes;
162 int has_super;
163 blk64_t blk_itr = EXT2FS_B2C(fs, fs->super->s_first_data_block);
164 ext2_ino_t ino_itr = 1;
165 errcode_t retval;
166
167 if (ext2fs_has_feature_bigalloc(fs->super))
168 units = _("clusters");
169
170 block_nbytes = EXT2_CLUSTERS_PER_GROUP(fs->super) / 8;
171 inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
172
173 if (fs->block_map)
174 block_bitmap = malloc(block_nbytes);
175 if (fs->inode_map)
176 inode_bitmap = malloc(inode_nbytes);
177
178 inode_blocks_per_group = ((fs->super->s_inodes_per_group *
179 EXT2_INODE_SIZE(fs->super)) +
180 EXT2_BLOCK_SIZE(fs->super) - 1) /
181 EXT2_BLOCK_SIZE(fs->super);
182 reserved_gdt = fs->super->s_reserved_gdt_blocks;
183 fputc('\n', stdout);
184 first_block = fs->super->s_first_data_block;
185 if (ext2fs_has_feature_meta_bg(fs->super))
186 old_desc_blocks = fs->super->s_first_meta_bg;
187 else
188 old_desc_blocks = fs->desc_blocks;
189 if (grp_only)
190 printf("group:block:super:gdt:bbitmap:ibitmap:itable\n");
191 for (i = 0; i < fs->group_desc_count; i++) {
192 first_block = ext2fs_group_first_block2(fs, i);
193 last_block = ext2fs_group_last_block2(fs, i);
194
195 ext2fs_super_and_bgd_loc2(fs, i, &super_blk,
196 &old_desc_blk, &new_desc_blk, 0);
197
198 if (grp_only) {
199 printf("%lu:%llu:", i, first_block);
200 if (i == 0 || super_blk)
201 printf("%llu:", super_blk);
202 else
203 printf("-1:");
204 if (old_desc_blk) {
205 print_range(old_desc_blk,
206 old_desc_blk + old_desc_blocks - 1);
207 printf(":");
208 } else if (new_desc_blk)
209 printf("%llu:", new_desc_blk);
210 else
211 printf("-1:");
212 printf("%llu:%llu:%llu\n",
213 ext2fs_block_bitmap_loc(fs, i),
214 ext2fs_inode_bitmap_loc(fs, i),
215 ext2fs_inode_table_loc(fs, i));
216 continue;
217 }
218
219 printf(_("Group %lu: (Blocks "), i);
220 print_range(first_block, last_block);
221 fputs(")", stdout);
222 if (ext2fs_has_group_desc_csum(fs)) {
223 unsigned csum = ext2fs_bg_checksum(fs, i);
224 unsigned exp_csum = ext2fs_group_desc_csum(fs, i);
225
226 printf(_(" csum 0x%04x"), csum);
227 if (csum != exp_csum)
228 printf(_(" (EXPECTED 0x%04x)"), exp_csum);
229 }
230 print_bg_opts(fs, i);
231 has_super = ((i==0) || super_blk);
232 if (has_super) {
233 printf (_(" %s superblock at "),
234 i == 0 ? _("Primary") : _("Backup"));
235 print_number(super_blk);
236 }
237 if (old_desc_blk) {
238 printf("%s", _(", Group descriptors at "));
239 print_range(old_desc_blk,
240 old_desc_blk + old_desc_blocks - 1);
241 if (reserved_gdt) {
242 printf("%s", _("\n Reserved GDT blocks at "));
243 print_range(old_desc_blk + old_desc_blocks,
244 old_desc_blk + old_desc_blocks +
245 reserved_gdt - 1);
246 }
247 } else if (new_desc_blk) {
248 fputc(has_super ? ',' : ' ', stdout);
249 printf("%s", _(" Group descriptor at "));
250 print_number(new_desc_blk);
251 has_super++;
252 }
253 if (has_super)
254 fputc('\n', stdout);
255 fputs(_(" Block bitmap at "), stdout);
256 print_number(ext2fs_block_bitmap_loc(fs, i));
257 print_bg_rel_offset(fs, ext2fs_block_bitmap_loc(fs, i), 0,
258 first_block, last_block);
259 if (ext2fs_has_feature_metadata_csum(fs->super))
260 printf(_(", csum 0x%08x"),
261 ext2fs_block_bitmap_checksum(fs, i));
262 if (getenv("DUMPE2FS_IGNORE_80COL"))
263 fputs(_(","), stdout);
264 else
265 fputs(_("\n "), stdout);
266 fputs(_(" Inode bitmap at "), stdout);
267 print_number(ext2fs_inode_bitmap_loc(fs, i));
268 print_bg_rel_offset(fs, ext2fs_inode_bitmap_loc(fs, i), 0,
269 first_block, last_block);
270 if (ext2fs_has_feature_metadata_csum(fs->super))
271 printf(_(", csum 0x%08x"),
272 ext2fs_inode_bitmap_checksum(fs, i));
273 fputs(_("\n Inode table at "), stdout);
274 print_range(ext2fs_inode_table_loc(fs, i),
275 ext2fs_inode_table_loc(fs, i) +
276 inode_blocks_per_group - 1);
277 print_bg_rel_offset(fs, ext2fs_inode_table_loc(fs, i), 1,
278 first_block, last_block);
279 printf (_("\n %u free %s, %u free inodes, "
280 "%u directories%s"),
281 ext2fs_bg_free_blocks_count(fs, i), units,
282 ext2fs_bg_free_inodes_count(fs, i),
283 ext2fs_bg_used_dirs_count(fs, i),
284 ext2fs_bg_itable_unused(fs, i) ? "" : "\n");
285 if (ext2fs_bg_itable_unused(fs, i))
286 printf (_(", %u unused inodes\n"),
287 ext2fs_bg_itable_unused(fs, i));
288 if (block_bitmap) {
289 fputs(_(" Free blocks: "), stdout);
290 retval = ext2fs_get_block_bitmap_range2(fs->block_map,
291 blk_itr, block_nbytes << 3, block_bitmap);
292 if (retval)
293 com_err("list_desc", retval,
294 "while reading block bitmap");
295 else
296 print_free(i, block_bitmap,
297 fs->super->s_clusters_per_group,
298 fs->super->s_first_data_block,
299 EXT2FS_CLUSTER_RATIO(fs));
300 fputc('\n', stdout);
301 blk_itr += fs->super->s_clusters_per_group;
302 }
303 if (inode_bitmap) {
304 fputs(_(" Free inodes: "), stdout);
305 retval = ext2fs_get_inode_bitmap_range2(fs->inode_map,
306 ino_itr, inode_nbytes << 3, inode_bitmap);
307 if (retval)
308 com_err("list_desc", retval,
309 "while reading inode bitmap");
310 else
311 print_free(i, inode_bitmap,
312 fs->super->s_inodes_per_group,
313 1, 1);
314 fputc('\n', stdout);
315 ino_itr += fs->super->s_inodes_per_group;
316 }
317 }
318 if (block_bitmap)
319 free(block_bitmap);
320 if (inode_bitmap)
321 free(inode_bitmap);
322 }
323
list_bad_blocks(ext2_filsys fs,int dump)324 static void list_bad_blocks(ext2_filsys fs, int dump)
325 {
326 badblocks_list bb_list = 0;
327 badblocks_iterate bb_iter;
328 blk_t blk;
329 errcode_t retval;
330 const char *header, *fmt;
331
332 retval = ext2fs_read_bb_inode(fs, &bb_list);
333 if (retval) {
334 com_err("ext2fs_read_bb_inode", retval, 0);
335 return;
336 }
337 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
338 if (retval) {
339 com_err("ext2fs_badblocks_list_iterate_begin", retval,
340 "%s", _("while printing bad block list"));
341 return;
342 }
343 if (dump) {
344 header = fmt = "%u\n";
345 } else {
346 header = _("Bad blocks: %u");
347 fmt = ", %u";
348 }
349 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) {
350 printf(header ? header : fmt, blk);
351 header = 0;
352 }
353 ext2fs_badblocks_list_iterate_end(bb_iter);
354 if (!dump)
355 fputc('\n', stdout);
356 ext2fs_badblocks_list_free(bb_list);
357 }
358
print_inline_journal_information(ext2_filsys fs)359 static void print_inline_journal_information(ext2_filsys fs)
360 {
361 journal_superblock_t *jsb;
362 struct ext2_inode inode;
363 ext2_file_t journal_file;
364 errcode_t retval;
365 ext2_ino_t ino = fs->super->s_journal_inum;
366 char buf[1024];
367
368 if (fs->flags & EXT2_FLAG_IMAGE_FILE)
369 return;
370 retval = ext2fs_read_inode(fs, ino, &inode);
371 if (retval) {
372 com_err(program_name, retval, "%s",
373 _("while reading journal inode"));
374 exit(1);
375 }
376 retval = ext2fs_file_open2(fs, ino, &inode, 0, &journal_file);
377 if (retval) {
378 com_err(program_name, retval, "%s",
379 _("while opening journal inode"));
380 exit(1);
381 }
382 retval = ext2fs_file_read(journal_file, buf, sizeof(buf), 0);
383 if (retval) {
384 com_err(program_name, retval, "%s",
385 _("while reading journal super block"));
386 exit(1);
387 }
388 ext2fs_file_close(journal_file);
389 jsb = (journal_superblock_t *) buf;
390 if (be32_to_cpu(jsb->s_header.h_magic) != JFS_MAGIC_NUMBER) {
391 fprintf(stderr, "%s",
392 _("Journal superblock magic number invalid!\n"));
393 exit(1);
394 }
395 e2p_list_journal_super(stdout, buf, fs->blocksize, 0);
396 }
397
print_journal_information(ext2_filsys fs)398 static void print_journal_information(ext2_filsys fs)
399 {
400 errcode_t retval;
401 char buf[1024];
402 journal_superblock_t *jsb;
403
404 /* Get the journal superblock */
405 if ((retval = io_channel_read_blk64(fs->io,
406 fs->super->s_first_data_block + 1,
407 -1024, buf))) {
408 com_err(program_name, retval, "%s",
409 _("while reading journal superblock"));
410 exit(1);
411 }
412 jsb = (journal_superblock_t *) buf;
413 if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) ||
414 (jsb->s_header.h_blocktype !=
415 (unsigned) ntohl(JFS_SUPERBLOCK_V2))) {
416 com_err(program_name, 0, "%s",
417 _("Couldn't find journal superblock magic numbers"));
418 exit(1);
419 }
420 e2p_list_journal_super(stdout, buf, fs->blocksize, 0);
421 }
422
check_mmp(ext2_filsys fs)423 static int check_mmp(ext2_filsys fs)
424 {
425 int retval;
426
427 /* This won't actually start MMP on the filesystem, since fs is opened
428 * readonly, but it will do the proper activity checking for us. */
429 retval = ext2fs_mmp_start(fs);
430 if (retval) {
431 com_err(program_name, retval, _("while trying to open %s"),
432 fs->device_name);
433 if (retval == EXT2_ET_MMP_FAILED ||
434 retval == EXT2_ET_MMP_FSCK_ON ||
435 retval == EXT2_ET_MMP_CSUM_INVALID ||
436 retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
437 if (fs->mmp_buf) {
438 struct mmp_struct *mmp = fs->mmp_buf;
439 time_t mmp_time = mmp->mmp_time;
440
441 fprintf(stderr,
442 "%s: MMP update by '%.*s%.*s' at %s",
443 program_name,
444 EXT2_LEN_STR(mmp->mmp_nodename),
445 EXT2_LEN_STR(mmp->mmp_bdevname),
446 ctime(&mmp_time));
447 }
448 retval = 1;
449 } else {
450 retval = 2;
451 }
452 } else {
453 printf("%s: it is safe to mount '%s', MMP is clean\n",
454 program_name, fs->device_name);
455 }
456
457 return retval;
458 }
459
print_mmp_block(ext2_filsys fs)460 static void print_mmp_block(ext2_filsys fs)
461 {
462 struct mmp_struct *mmp;
463 time_t mmp_time;
464 errcode_t retval;
465
466 if (fs->mmp_buf == NULL) {
467 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
468 if (retval) {
469 com_err(program_name, retval,
470 _("failed to alloc MMP buffer\n"));
471 return;
472 }
473 }
474
475 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
476 /* this is only dumping, not checking status, so OK to skip this */
477 if (retval == EXT2_ET_OP_NOT_SUPPORTED)
478 return;
479 if (retval) {
480 com_err(program_name, retval,
481 _("reading MMP block %llu from '%s'\n"),
482 fs->super->s_mmp_block, fs->device_name);
483 return;
484 }
485
486 mmp = fs->mmp_buf;
487 mmp_time = mmp->mmp_time;
488 printf("MMP_block:\n");
489 printf(" mmp_magic: 0x%x\n", mmp->mmp_magic);
490 printf(" mmp_check_interval: %d\n", mmp->mmp_check_interval);
491 printf(" mmp_sequence: %#08x\n", mmp->mmp_seq);
492 printf(" mmp_update_date: %s", ctime(&mmp_time));
493 printf(" mmp_update_time: %lld\n", mmp->mmp_time);
494 printf(" mmp_node_name: %.*s\n",
495 EXT2_LEN_STR(mmp->mmp_nodename));
496 printf(" mmp_device_name: %.*s\n",
497 EXT2_LEN_STR(mmp->mmp_bdevname));
498 }
499
parse_extended_opts(const char * opts,blk64_t * superblock,int * blocksize)500 static void parse_extended_opts(const char *opts, blk64_t *superblock,
501 int *blocksize)
502 {
503 char *buf, *token, *next, *p, *arg, *badopt = 0;
504 int len;
505 int do_usage = 0;
506
507 len = strlen(opts);
508 buf = malloc(len+1);
509 if (!buf) {
510 fprintf(stderr, "%s",
511 _("Couldn't allocate memory to parse options!\n"));
512 exit(1);
513 }
514 strcpy(buf, opts);
515 for (token = buf; token && *token; token = next) {
516 p = strchr(token, ',');
517 next = 0;
518 if (p) {
519 *p = 0;
520 next = p+1;
521 }
522 arg = strchr(token, '=');
523 if (arg) {
524 *arg = 0;
525 arg++;
526 }
527 if (strcmp(token, "superblock") == 0 ||
528 strcmp(token, "sb") == 0) {
529 if (!arg) {
530 do_usage++;
531 badopt = token;
532 continue;
533 }
534 *superblock = strtoul(arg, &p, 0);
535 if (*p) {
536 fprintf(stderr,
537 _("Invalid superblock parameter: %s\n"),
538 arg);
539 do_usage++;
540 continue;
541 }
542 } else if (strcmp(token, "blocksize") == 0 ||
543 strcmp(token, "bs") == 0) {
544 if (!arg) {
545 do_usage++;
546 badopt = token;
547 continue;
548 }
549 *blocksize = strtoul(arg, &p, 0);
550 if (*p) {
551 fprintf(stderr,
552 _("Invalid blocksize parameter: %s\n"),
553 arg);
554 do_usage++;
555 continue;
556 }
557 } else {
558 do_usage++;
559 badopt = token;
560 }
561 }
562 if (do_usage) {
563 fprintf(stderr, _("\nBad extended option(s) specified: %s\n\n"
564 "Extended options are separated by commas, "
565 "and may take an argument which\n"
566 "\tis set off by an equals ('=') sign.\n\n"
567 "Valid extended options are:\n"
568 "\tsuperblock=<superblock number>\n"
569 "\tblocksize=<blocksize>\n"),
570 badopt ? badopt : "");
571 free(buf);
572 exit(1);
573 }
574 free(buf);
575 }
576
main(int argc,char ** argv)577 int main (int argc, char ** argv)
578 {
579 errcode_t retval;
580 errcode_t retval_csum = 0;
581 const char *error_csum = NULL;
582 ext2_filsys fs;
583 int print_badblocks = 0;
584 blk64_t use_superblock = 0;
585 int use_blocksize = 0;
586 int image_dump = 0;
587 int mmp_check = 0;
588 int mmp_info = 0;
589 int force = 0;
590 int flags;
591 int header_only = 0;
592 int c;
593 int grp_only = 0;
594
595 #ifdef ENABLE_NLS
596 setlocale(LC_MESSAGES, "");
597 setlocale(LC_CTYPE, "");
598 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
599 textdomain(NLS_CAT_NAME);
600 set_com_err_gettext(gettext);
601 #endif
602 add_error_table(&et_ext2_error_table);
603 if (argc && *argv) {
604 if (strrchr(*argv, '/'))
605 program_name = strrchr(*argv, '/') + 1;
606 else
607 program_name = *argv;
608
609 if (strstr(program_name, "mmpstatus") != NULL) {
610 mmp_check = 1;
611 header_only = 1;
612 }
613 }
614
615 if (!mmp_check)
616 fprintf(stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION,
617 E2FSPROGS_DATE);
618
619 while ((c = getopt(argc, argv, "bfghimxVo:")) != EOF) {
620 switch (c) {
621 case 'b':
622 print_badblocks++;
623 break;
624 case 'f':
625 force++;
626 break;
627 case 'g':
628 grp_only++;
629 break;
630 case 'h':
631 header_only++;
632 break;
633 case 'i':
634 if (mmp_check)
635 mmp_info++;
636 else
637 image_dump++;
638 break;
639 case 'm':
640 mmp_check++;
641 header_only++;
642 if (image_dump) {
643 mmp_info = image_dump;
644 image_dump = 0;
645 }
646 break;
647 case 'o':
648 parse_extended_opts(optarg, &use_superblock,
649 &use_blocksize);
650 break;
651 case 'V':
652 /* Print version number and exit */
653 fprintf(stderr, _("\tUsing %s\n"),
654 error_message(EXT2_ET_BASE));
655 exit(0);
656 case 'x':
657 hex_format++;
658 break;
659 default:
660 usage();
661 }
662 }
663 if (optind != argc - 1)
664 usage();
665
666 device_name = argv[optind++];
667 flags = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES |
668 EXT2_FLAG_64BITS;
669 if (force)
670 flags |= EXT2_FLAG_FORCE;
671 if (image_dump)
672 flags |= EXT2_FLAG_IMAGE_FILE;
673 try_open_again:
674 if (use_superblock && !use_blocksize) {
675 for (use_blocksize = EXT2_MIN_BLOCK_SIZE;
676 use_blocksize <= EXT2_MAX_BLOCK_SIZE;
677 use_blocksize *= 2) {
678 retval = ext2fs_open (device_name, flags,
679 use_superblock,
680 use_blocksize, unix_io_manager,
681 &fs);
682 if (!retval)
683 break;
684 }
685 } else {
686 retval = ext2fs_open(device_name, flags, use_superblock,
687 use_blocksize, unix_io_manager, &fs);
688 }
689 flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
690 if (retval && !retval_csum) {
691 retval_csum = retval;
692 error_csum = _("while trying to open %s");
693 goto try_open_again;
694 }
695 if (retval) {
696 com_err(program_name, retval, _("while trying to open %s"),
697 device_name);
698 printf("%s", _("Couldn't find valid filesystem superblock.\n"));
699 if (retval == EXT2_ET_BAD_MAGIC)
700 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
701 goto out;
702 }
703 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
704 if (ext2fs_has_feature_64bit(fs->super))
705 blocks64 = 1;
706 if (mmp_check) {
707 if (ext2fs_has_feature_mmp(fs->super) &&
708 fs->super->s_mmp_block != 0) {
709 if (mmp_info) {
710 print_mmp_block(fs);
711 printf(" mmp_block_number: ");
712 print_number(fs->super->s_mmp_block);
713 printf("\n");
714 } else {
715 retval = check_mmp(fs);
716 }
717 if (!retval && retval_csum)
718 retval = 2;
719 } else {
720 fprintf(stderr, _("%s: MMP feature not enabled.\n"),
721 program_name);
722 retval = 2;
723 }
724 } else if (print_badblocks) {
725 list_bad_blocks(fs, 1);
726 } else {
727 if (grp_only)
728 goto just_descriptors;
729 list_super(fs->super);
730 if (ext2fs_has_feature_journal_dev(fs->super)) {
731 print_journal_information(fs);
732
733 goto out_close;
734 }
735 if (ext2fs_has_feature_journal(fs->super) &&
736 (fs->super->s_journal_inum != 0))
737 print_inline_journal_information(fs);
738 if (ext2fs_has_feature_mmp(fs->super) &&
739 fs->super->s_mmp_block != 0)
740 print_mmp_block(fs);
741 list_bad_blocks(fs, 0);
742 if (header_only)
743 goto out_close;
744
745 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
746 try_bitmaps_again:
747 retval = ext2fs_read_bitmaps(fs);
748 if (retval && !retval_csum) {
749 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
750 retval_csum = retval;
751 error_csum = _("while trying to read '%s' bitmaps\n");
752 goto try_bitmaps_again;
753 }
754 just_descriptors:
755 list_desc(fs, grp_only);
756 }
757 out_close:
758 if (retval_csum) {
759 com_err(program_name, retval_csum, error_csum, device_name);
760 printf("%s", _("*** Run e2fsck now!\n\n"));
761 if (!retval)
762 retval = retval_csum;
763 }
764 ext2fs_close_free(&fs);
765 remove_error_table(&et_ext2_error_table);
766 out:
767 return retval;
768 }
769