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misc: add e2mmpstatus utility via dumpe2fs
[thirdparty/e2fsprogs.git] / misc / dumpe2fs.c
CommitLineData
3839e657
TT
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 *
19c78dc0
TT
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%
3839e657
TT
15 */
16
17/*
18 * History:
19 * 94/01/09 - Creation
20 * 94/02/27 - Ported to use the ext2fs library
21 */
22
d1154eb4 23#include "config.h"
a418d3ad 24#ifdef HAVE_GETOPT_H
3839e657 25#include <getopt.h>
373b8337
TT
26#else
27extern char *optarg;
28extern int optind;
a418d3ad 29#endif
3839e657
TT
30#include <fcntl.h>
31#include <stdio.h>
32#include <stdlib.h>
33#include <string.h>
34#include <unistd.h>
35
54c637d4 36#include "ext2fs/ext2_fs.h"
3839e657
TT
37
38#include "ext2fs/ext2fs.h"
39#include "e2p/e2p.h"
81f95d43 40#include "ext2fs/kernel-jbd.h"
4ea7bd04 41#include <uuid/uuid.h>
3839e657 42
99ceb8ec
TT
43#include "support/nls-enable.h"
44#include "support/plausible.h"
3839e657
TT
45#include "../version.h"
46
74becf3c 47#define in_use(m, x) (ext2fs_test_bit ((x), (m)))
3839e657 48
f404167d
TT
49static const char * program_name = "dumpe2fs";
50static char * device_name = NULL;
51static int hex_format = 0;
52static int blocks64 = 0;
3839e657 53
818180cd 54static void usage(void)
3839e657 55{
32b8802a 56 fprintf(stderr, _("Usage: %s [-bfghimxV] [-o superblock=<num>] "
77f464fb 57 "[-o blocksize=<num>] device\n"), program_name);
0858268d 58 exit(1);
3839e657
TT
59}
60
ce10c313 61static void print_number(unsigned long long num)
54434927 62{
ce10c313
TT
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);
9b9a780f
TT
70}
71
295c3e03 72static void print_range(unsigned long long a, unsigned long long b)
9b9a780f 73{
ce10c313
TT
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
295c3e03 80 printf("%llu-%llu", a, b);
54434927
TT
81}
82
bcb942c2
TT
83static void print_free(unsigned long group, char * bitmap,
84 unsigned long num, unsigned long offset, int ratio)
3839e657
TT
85{
86 int p = 0;
87 unsigned long i;
88 unsigned long j;
89
bcb942c2
TT
90 offset /= ratio;
91 offset += group * num;
92 for (i = 0; i < num; i++)
3839e657
TT
93 if (!in_use (bitmap, i))
94 {
95 if (p)
96 printf (", ");
bcb942c2
TT
97 print_number((i + offset) * ratio);
98 for (j = i; j < num && !in_use (bitmap, j); j++)
a5f0bb9d
TT
99 ;
100 if (--j != i) {
101 fputc('-', stdout);
bcb942c2 102 print_number((j + offset) * ratio);
a5f0bb9d 103 i = j;
3839e657
TT
104 }
105 p = 1;
106 }
107}
108
f5fa2007
TT
109static 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}
121static void print_bg_opts(ext2_filsys fs, dgrp_t i)
122{
16b851cd 123 int first = 1, bg_flags = 0;
f5fa2007 124
5b58dc23 125 if (ext2fs_has_group_desc_csum(fs))
732c8cd5 126 bg_flags = ext2fs_bg_flags(fs, i);
f5fa2007 127
b89fc30d 128 print_bg_opt(bg_flags, EXT2_BG_INODE_UNINIT, "INODE_UNINIT",
f5fa2007 129 &first);
b89fc30d
TT
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",
f5fa2007
TT
133 &first);
134 if (!first)
135 fputc(']', stdout);
136 fputc('\n', stdout);
137}
138
0e2afdba
AD
139static 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));
7889640d 146 } else if (ext2fs_has_feature_flex_bg(fs->super)) {
4dbfd79d 147 dgrp_t flex_grp = ext2fs_group_of_blk2(fs, block);
0e2afdba 148 printf(" (bg #%u + %u)", flex_grp,
26da6614 149 (unsigned)(block-ext2fs_group_first_block2(fs,flex_grp)));
0e2afdba
AD
150 }
151}
152
0858268d 153static void list_desc(ext2_filsys fs, int grp_only)
3839e657
TT
154{
155 unsigned long i;
295c3e03
TT
156 blk64_t first_block, last_block;
157 blk64_t super_blk, old_desc_blk, new_desc_blk;
d90a23e2 158 char *block_bitmap=NULL, *inode_bitmap=NULL;
2418dfd7 159 const char *units = _("blocks");
35238dd1 160 int inode_blocks_per_group, old_desc_blocks, reserved_gdt;
f1f115a7 161 int block_nbytes, inode_nbytes;
ef344e13 162 int has_super;
6a6337c3 163 blk64_t blk_itr = EXT2FS_B2C(fs, fs->super->s_first_data_block);
f1f115a7 164 ext2_ino_t ino_itr = 1;
6908c0c3 165 errcode_t retval;
f1f115a7 166
7889640d 167 if (ext2fs_has_feature_bigalloc(fs->super))
2418dfd7
TT
168 units = _("clusters");
169
bcb942c2 170 block_nbytes = EXT2_CLUSTERS_PER_GROUP(fs->super) / 8;
f1f115a7 171 inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
80c22c90 172
d90a23e2 173 if (fs->block_map)
f1f115a7 174 block_bitmap = malloc(block_nbytes);
d90a23e2 175 if (fs->inode_map)
f1f115a7 176 inode_bitmap = malloc(inode_nbytes);
d90a23e2 177
80c22c90
TT
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);
35238dd1 182 reserved_gdt = fs->super->s_reserved_gdt_blocks;
a5f0bb9d 183 fputc('\n', stdout);
bb1a46a4 184 first_block = fs->super->s_first_data_block;
7889640d 185 if (ext2fs_has_feature_meta_bg(fs->super))
76dd5e5c
TT
186 old_desc_blocks = fs->super->s_first_meta_bg;
187 else
188 old_desc_blocks = fs->desc_blocks;
0858268d
DW
189 if (grp_only)
190 printf("group:block:super:gdt:bbitmap:ibitmap:itable\n");
521e3685 191 for (i = 0; i < fs->group_desc_count; i++) {
b49f78fe
TT
192 first_block = ext2fs_group_first_block2(fs, i);
193 last_block = ext2fs_group_last_block2(fs, i);
abf23439 194
295c3e03
TT
195 ext2fs_super_and_bgd_loc2(fs, i, &super_blk,
196 &old_desc_blk, &new_desc_blk, 0);
bb1a46a4 197
0858268d
DW
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
492084ff 219 printf(_("Group %lu: (Blocks "), i);
bb1a46a4 220 print_range(first_block, last_block);
f5fa2007 221 fputs(")", stdout);
5b58dc23 222 if (ext2fs_has_group_desc_csum(fs)) {
87141781
TT
223 unsigned csum = ext2fs_bg_checksum(fs, i);
224 unsigned exp_csum = ext2fs_group_desc_csum(fs, i);
225
492084ff 226 printf(_(" csum 0x%04x"), csum);
87141781
TT
227 if (csum != exp_csum)
228 printf(_(" (EXPECTED 0x%04x)"), exp_csum);
87141781 229 }
492084ff 230 print_bg_opts(fs, i);
ef344e13 231 has_super = ((i==0) || super_blk);
c046ac7f
TT
232 if (has_super) {
233 printf (_(" %s superblock at "),
a5f0bb9d 234 i == 0 ? _("Primary") : _("Backup"));
54434927 235 print_number(super_blk);
c046ac7f 236 }
ef344e13 237 if (old_desc_blk) {
45ff69ff 238 printf("%s", _(", Group descriptors at "));
efc6f628 239 print_range(old_desc_blk,
9b9a780f 240 old_desc_blk + old_desc_blocks - 1);
35238dd1 241 if (reserved_gdt) {
45ff69ff 242 printf("%s", _("\n Reserved GDT blocks at "));
9b9a780f 243 print_range(old_desc_blk + old_desc_blocks,
efc6f628 244 old_desc_blk + old_desc_blocks +
9b9a780f 245 reserved_gdt - 1);
35238dd1 246 }
ef344e13
TT
247 } else if (new_desc_blk) {
248 fputc(has_super ? ',' : ' ', stdout);
45ff69ff 249 printf("%s", _(" Group descriptor at "));
54434927 250 print_number(new_desc_blk);
ef344e13 251 has_super++;
a5f0bb9d 252 }
ef344e13
TT
253 if (has_super)
254 fputc('\n', stdout);
a5f0bb9d 255 fputs(_(" Block bitmap at "), stdout);
d7cca6b0 256 print_number(ext2fs_block_bitmap_loc(fs, i));
0358c9f9 257 print_bg_rel_offset(fs, ext2fs_block_bitmap_loc(fs, i), 0,
0e2afdba 258 first_block, last_block);
7889640d 259 if (ext2fs_has_feature_metadata_csum(fs->super))
24c6c8b6
DW
260 printf(_(", csum 0x%08x"),
261 ext2fs_block_bitmap_checksum(fs, i));
6aa8cff3
DW
262 if (getenv("DUMPE2FS_IGNORE_80COL"))
263 fputs(_(","), stdout);
264 else
265 fputs(_("\n "), stdout);
266 fputs(_(" Inode bitmap at "), stdout);
d7cca6b0 267 print_number(ext2fs_inode_bitmap_loc(fs, i));
0358c9f9 268 print_bg_rel_offset(fs, ext2fs_inode_bitmap_loc(fs, i), 0,
0e2afdba 269 first_block, last_block);
7889640d 270 if (ext2fs_has_feature_metadata_csum(fs->super))
62039172
DW
271 printf(_(", csum 0x%08x"),
272 ext2fs_inode_bitmap_checksum(fs, i));
a5f0bb9d 273 fputs(_("\n Inode table at "), stdout);
d7cca6b0
VAH
274 print_range(ext2fs_inode_table_loc(fs, i),
275 ext2fs_inode_table_loc(fs, i) +
9b9a780f 276 inode_blocks_per_group - 1);
0358c9f9 277 print_bg_rel_offset(fs, ext2fs_inode_table_loc(fs, i), 1,
0e2afdba 278 first_block, last_block);
2418dfd7 279 printf (_("\n %u free %s, %u free inodes, "
777a8c1b 280 "%u directories%s"),
2418dfd7 281 ext2fs_bg_free_blocks_count(fs, i), units,
d7cca6b0
VAH
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))
777a8c1b 286 printf (_(", %u unused inodes\n"),
d7cca6b0 287 ext2fs_bg_itable_unused(fs, i));
d90a23e2
TT
288 if (block_bitmap) {
289 fputs(_(" Free blocks: "), stdout);
6908c0c3 290 retval = ext2fs_get_block_bitmap_range2(fs->block_map,
f1f115a7 291 blk_itr, block_nbytes << 3, block_bitmap);
6908c0c3
DW
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));
d90a23e2 300 fputc('\n', stdout);
bcb942c2 301 blk_itr += fs->super->s_clusters_per_group;
d90a23e2
TT
302 }
303 if (inode_bitmap) {
304 fputs(_(" Free inodes: "), stdout);
6908c0c3 305 retval = ext2fs_get_inode_bitmap_range2(fs->inode_map,
f1f115a7 306 ino_itr, inode_nbytes << 3, inode_bitmap);
6908c0c3
DW
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);
d90a23e2 314 fputc('\n', stdout);
f1f115a7 315 ino_itr += fs->super->s_inodes_per_group;
d90a23e2 316 }
3839e657 317 }
1acde2b2
TT
318 if (block_bitmap)
319 free(block_bitmap);
320 if (inode_bitmap)
321 free(inode_bitmap);
3839e657
TT
322}
323
0655b104 324static void list_bad_blocks(ext2_filsys fs, int dump)
3839e657
TT
325{
326 badblocks_list bb_list = 0;
327 badblocks_iterate bb_iter;
328 blk_t blk;
329 errcode_t retval;
0655b104 330 const char *header, *fmt;
3839e657
TT
331
332 retval = ext2fs_read_bb_inode(fs, &bb_list);
333 if (retval) {
9b9a780f 334 com_err("ext2fs_read_bb_inode", retval, 0);
0655b104 335 return;
3839e657 336 }
cbbf031b 337 retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
3839e657 338 if (retval) {
cbbf031b 339 com_err("ext2fs_badblocks_list_iterate_begin", retval,
45ff69ff 340 "%s", _("while printing bad block list"));
0655b104 341 return;
3839e657 342 }
0655b104 343 if (dump) {
d0ff90d5 344 header = fmt = "%u\n";
0655b104 345 } else {
d0ff90d5
ES
346 header = _("Bad blocks: %u");
347 fmt = ", %u";
f3db3566 348 }
0655b104
TT
349 while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) {
350 printf(header ? header : fmt, blk);
351 header = 0;
f3db3566 352 }
cbbf031b 353 ext2fs_badblocks_list_iterate_end(bb_iter);
0655b104
TT
354 if (!dump)
355 fputc('\n', stdout);
1acde2b2 356 ext2fs_badblocks_list_free(bb_list);
1e3472c5 357}
f3db3566 358
6515a6f1
TT
359static void print_inline_journal_information(ext2_filsys fs)
360{
1d9b8183 361 journal_superblock_t *jsb;
6515a6f1 362 struct ext2_inode inode;
1d9b8183 363 ext2_file_t journal_file;
6515a6f1
TT
364 errcode_t retval;
365 ino_t ino = fs->super->s_journal_inum;
1d9b8183 366 char buf[1024];
efc6f628 367
7fcaabf8
TT
368 if (fs->flags & EXT2_FLAG_IMAGE_FILE)
369 return;
6515a6f1
TT
370 retval = ext2fs_read_inode(fs, ino, &inode);
371 if (retval) {
45ff69ff 372 com_err(program_name, retval, "%s",
6515a6f1
TT
373 _("while reading journal inode"));
374 exit(1);
375 }
1d9b8183
TT
376 retval = ext2fs_file_open2(fs, ino, &inode, 0, &journal_file);
377 if (retval) {
45ff69ff 378 com_err(program_name, retval, "%s",
1d9b8183
TT
379 _("while opening journal inode"));
380 exit(1);
381 }
382 retval = ext2fs_file_read(journal_file, buf, sizeof(buf), 0);
383 if (retval) {
45ff69ff 384 com_err(program_name, retval, "%s",
1d9b8183
TT
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) {
45ff69ff
AD
391 fprintf(stderr, "%s",
392 _("Journal superblock magic number invalid!\n"));
1d9b8183
TT
393 exit(1);
394 }
03a179a1 395 e2p_list_journal_super(stdout, buf, fs->blocksize, 0);
6515a6f1
TT
396}
397
16ed5b3a
TT
398static void print_journal_information(ext2_filsys fs)
399{
400 errcode_t retval;
401 char buf[1024];
16ed5b3a
TT
402 journal_superblock_t *jsb;
403
404 /* Get the journal superblock */
45ff69ff
AD
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",
16ed5b3a
TT
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))) {
45ff69ff 416 com_err(program_name, 0, "%s",
16ed5b3a
TT
417 _("Couldn't find journal superblock magic numbers"));
418 exit(1);
419 }
03a179a1 420 e2p_list_journal_super(stdout, buf, fs->blocksize, 0);
16ed5b3a
TT
421}
422
32b8802a
SI
423static 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 last updated by '%s' on %s",
443 program_name, mmp->mmp_nodename,
444 ctime(&mmp_time));
445 }
446 retval = 1;
447 } else {
448 retval = 2;
449 }
450 } else {
451 printf("%s: it is safe to mount '%s', MMP is clean\n",
452 program_name, fs->device_name);
453 }
454
455 return retval;
456}
457
458static void print_mmp_block(ext2_filsys fs)
459{
460 struct mmp_struct *mmp;
461 time_t mmp_time;
462 errcode_t retval;
463
464 if (fs->mmp_buf == NULL) {
465 retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
466 if (retval) {
467 com_err(program_name, retval,
468 _("failed to alloc MMP buffer\n"));
469 return;
470 }
471 }
472
473 retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
474 /* this is only dumping, not checking status, so OK to skip this */
475 if (retval == EXT2_ET_OP_NOT_SUPPORTED)
476 return;
477 if (retval) {
478 com_err(program_name, retval,
479 _("reading MMP block %llu from '%s'\n"),
480 fs->super->s_mmp_block, fs->device_name);
481 return;
482 }
483
484 mmp = fs->mmp_buf;
485 mmp_time = mmp->mmp_time;
486 printf("MMP_block:\n");
487 printf(" mmp_magic: 0x%x\n", mmp->mmp_magic);
488 printf(" mmp_check_interval: %d\n", mmp->mmp_check_interval);
489 printf(" mmp_sequence: %#08x\n", mmp->mmp_seq);
490 printf(" mmp_update_date: %s", ctime(&mmp_time));
491 printf(" mmp_update_time: %lld\n", mmp->mmp_time);
492 printf(" mmp_node_name: %s\n", mmp->mmp_nodename);
493 printf(" mmp_device_name: %s\n", mmp->mmp_bdevname);
494}
495
295c3e03 496static void parse_extended_opts(const char *opts, blk64_t *superblock,
db197a81
TT
497 int *blocksize)
498{
2d328bb7 499 char *buf, *token, *next, *p, *arg, *badopt = 0;
db197a81 500 int len;
2d328bb7 501 int do_usage = 0;
db197a81
TT
502
503 len = strlen(opts);
504 buf = malloc(len+1);
505 if (!buf) {
45ff69ff 506 fprintf(stderr, "%s",
db197a81
TT
507 _("Couldn't allocate memory to parse options!\n"));
508 exit(1);
509 }
510 strcpy(buf, opts);
511 for (token = buf; token && *token; token = next) {
512 p = strchr(token, ',');
513 next = 0;
514 if (p) {
515 *p = 0;
516 next = p+1;
517 }
518 arg = strchr(token, '=');
519 if (arg) {
520 *arg = 0;
521 arg++;
522 }
523 if (strcmp(token, "superblock") == 0 ||
524 strcmp(token, "sb") == 0) {
525 if (!arg) {
2d328bb7 526 do_usage++;
db197a81
TT
527 badopt = token;
528 continue;
529 }
530 *superblock = strtoul(arg, &p, 0);
531 if (*p) {
532 fprintf(stderr,
533 _("Invalid superblock parameter: %s\n"),
534 arg);
2d328bb7 535 do_usage++;
db197a81
TT
536 continue;
537 }
538 } else if (strcmp(token, "blocksize") == 0 ||
539 strcmp(token, "bs") == 0) {
540 if (!arg) {
2d328bb7 541 do_usage++;
db197a81
TT
542 badopt = token;
543 continue;
544 }
545 *blocksize = strtoul(arg, &p, 0);
546 if (*p) {
547 fprintf(stderr,
548 _("Invalid blocksize parameter: %s\n"),
549 arg);
2d328bb7 550 do_usage++;
db197a81
TT
551 continue;
552 }
553 } else {
2d328bb7 554 do_usage++;
db197a81
TT
555 badopt = token;
556 }
557 }
2d328bb7 558 if (do_usage) {
db197a81
TT
559 fprintf(stderr, _("\nBad extended option(s) specified: %s\n\n"
560 "Extended options are separated by commas, "
561 "and may take an argument which\n"
562 "\tis set off by an equals ('=') sign.\n\n"
563 "Valid extended options are:\n"
564 "\tsuperblock=<superblock number>\n"
565 "\tblocksize=<blocksize>\n"),
2d328bb7 566 badopt ? badopt : "");
db197a81
TT
567 free(buf);
568 exit(1);
569 }
570 free(buf);
efc6f628 571}
db197a81 572
00e5433e 573int main (int argc, char ** argv)
3839e657
TT
574{
575 errcode_t retval;
32b8802a
SI
576 errcode_t retval_csum = 0;
577 const char *error_csum = NULL;
3839e657 578 ext2_filsys fs;
f3db3566 579 int print_badblocks = 0;
295c3e03 580 blk64_t use_superblock = 0;
02e7dd9a 581 int use_blocksize = 0;
348e43dc 582 int image_dump = 0;
32b8802a
SI
583 int mmp_check = 0;
584 int mmp_info = 0;
2740156b 585 int force = 0;
16ed5b3a 586 int flags;
2740156b 587 int header_only = 0;
519149fb 588 int c;
0858268d 589 int grp_only = 0;
3839e657 590
d9c56d3c
TT
591#ifdef ENABLE_NLS
592 setlocale(LC_MESSAGES, "");
14308a53 593 setlocale(LC_CTYPE, "");
d9c56d3c
TT
594 bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
595 textdomain(NLS_CAT_NAME);
9d4507c5 596 set_com_err_gettext(gettext);
d9c56d3c 597#endif
a6d8302b 598 add_error_table(&et_ext2_error_table);
32b8802a
SI
599 if (argc && *argv) {
600 if (strrchr(*argv, '/'))
601 program_name = strrchr(*argv, '/') + 1;
602 else
603 program_name = *argv;
604
605 if (strstr(program_name, "mmpstatus") != NULL) {
606 mmp_check = 1;
607 header_only = 1;
608 }
609 }
efc6f628 610
32b8802a
SI
611 if (!mmp_check)
612 fprintf(stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION,
613 E2FSPROGS_DATE);
614
615 while ((c = getopt(argc, argv, "bfghimxVo:")) != EOF) {
f3db3566
TT
616 switch (c) {
617 case 'b':
618 print_badblocks++;
619 break;
2740156b
TT
620 case 'f':
621 force++;
622 break;
0858268d
DW
623 case 'g':
624 grp_only++;
625 break;
2740156b
TT
626 case 'h':
627 header_only++;
628 break;
348e43dc 629 case 'i':
32b8802a
SI
630 if (mmp_check)
631 mmp_info++;
632 else
633 image_dump++;
634 break;
635 case 'm':
636 mmp_check++;
637 header_only++;
638 if (image_dump) {
639 mmp_info = image_dump;
640 image_dump = 0;
641 }
348e43dc 642 break;
02e7dd9a 643 case 'o':
efc6f628 644 parse_extended_opts(optarg, &use_superblock,
db197a81 645 &use_blocksize);
02e7dd9a 646 break;
5c576477
TT
647 case 'V':
648 /* Print version number and exit */
d9c56d3c 649 fprintf(stderr, _("\tUsing %s\n"),
5c576477
TT
650 error_message(EXT2_ET_BASE));
651 exit(0);
80c22c90 652 case 'x':
9b9a780f 653 hex_format++;
80c22c90 654 break;
f3db3566 655 default:
818180cd 656 usage();
f3db3566
TT
657 }
658 }
32b8802a 659 if (optind != argc - 1)
818180cd 660 usage();
32b8802a 661
f3db3566 662 device_name = argv[optind++];
32b8802a
SI
663 flags = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES |
664 EXT2_FLAG_64BITS;
16ed5b3a
TT
665 if (force)
666 flags |= EXT2_FLAG_FORCE;
348e43dc
TT
667 if (image_dump)
668 flags |= EXT2_FLAG_IMAGE_FILE;
3466e95f 669try_open_again:
db197a81
TT
670 if (use_superblock && !use_blocksize) {
671 for (use_blocksize = EXT2_MIN_BLOCK_SIZE;
672 use_blocksize <= EXT2_MAX_BLOCK_SIZE;
673 use_blocksize *= 2) {
674 retval = ext2fs_open (device_name, flags,
675 use_superblock,
676 use_blocksize, unix_io_manager,
677 &fs);
678 if (!retval)
679 break;
680 }
32b8802a
SI
681 } else {
682 retval = ext2fs_open(device_name, flags, use_superblock,
683 use_blocksize, unix_io_manager, &fs);
3466e95f 684 }
3466e95f 685 flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
32b8802a
SI
686 if (retval && !retval_csum) {
687 retval_csum = retval;
688 error_csum = _("while trying to open %s");
689 goto try_open_again;
690 }
f3db3566 691 if (retval) {
32b8802a
SI
692 com_err(program_name, retval, _("while trying to open %s"),
693 device_name);
45ff69ff 694 printf("%s", _("Couldn't find valid filesystem superblock.\n"));
c8b20b40
DW
695 if (retval == EXT2_ET_BAD_MAGIC)
696 check_plausibility(device_name, CHECK_FS_EXIST, NULL);
32b8802a 697 goto out;
3839e657 698 }
24dea554 699 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
7889640d 700 if (ext2fs_has_feature_64bit(fs->super))
ce10c313 701 blocks64 = 1;
32b8802a
SI
702 if (mmp_check) {
703 if (ext2fs_has_feature_mmp(fs->super) &&
704 fs->super->s_mmp_block != 0) {
705 if (mmp_info) {
706 print_mmp_block(fs);
707 printf(" mmp_block_number: ");
708 print_number(fs->super->s_mmp_block);
709 printf("\n");
710 } else {
711 retval = check_mmp(fs);
712 }
713 if (!retval && retval_csum)
714 retval = 2;
715 } else {
716 fprintf(stderr, _("%s: MMP feature not enabled.\n"),
717 program_name);
718 retval = 2;
719 }
720 } else if (print_badblocks) {
0655b104 721 list_bad_blocks(fs, 1);
f3db3566 722 } else {
0858268d
DW
723 if (grp_only)
724 goto just_descriptors;
32b8802a 725 list_super(fs->super);
7889640d 726 if (ext2fs_has_feature_journal_dev(fs->super)) {
16ed5b3a 727 print_journal_information(fs);
32b8802a
SI
728
729 goto out_close;
16ed5b3a 730 }
7889640d 731 if (ext2fs_has_feature_journal(fs->super) &&
a11d0746 732 (fs->super->s_journal_inum != 0))
6515a6f1 733 print_inline_journal_information(fs);
32b8802a
SI
734 if (ext2fs_has_feature_mmp(fs->super) &&
735 fs->super->s_mmp_block != 0)
736 print_mmp_block(fs);
0655b104 737 list_bad_blocks(fs, 0);
32b8802a
SI
738 if (header_only)
739 goto out_close;
740
3466e95f
DW
741 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
742try_bitmaps_again:
32b8802a
SI
743 retval = ext2fs_read_bitmaps(fs);
744 if (retval && !retval_csum) {
3466e95f 745 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
32b8802a
SI
746 retval_csum = retval;
747 error_csum = _("while trying to read '%s' bitmaps\n");
3466e95f
DW
748 goto try_bitmaps_again;
749 }
0858268d
DW
750just_descriptors:
751 list_desc(fs, grp_only);
32b8802a
SI
752 }
753out_close:
754 if (retval_csum) {
755 com_err(program_name, retval_csum, error_csum, device_name);
756 printf("%s", _("*** Run e2fsck now!\n\n"));
757 if (!retval)
758 retval = retval_csum;
3839e657 759 }
47fee2ef 760 ext2fs_close_free(&fs);
a6d8302b 761 remove_error_table(&et_ext2_error_table);
32b8802a
SI
762out:
763 return retval;
3839e657 764}