1 /* 2 * dumpe2fs.c - List the control structures of a second 3 * extended filesystem 4 * 5 * Copyright (C) 1992, 1993, 1994 Remy Card <card (at) 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 54 static void usage(void) 55 { 56 fprintf(stderr, _("Usage: %s [-bfghixV] [-o superblock=<num>] " 57 "[-o blocksize=<num>] device\n"), program_name); 58 exit(1); 59 } 60 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 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 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 } 108 109 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 } 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 } 138 139 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 } 152 153 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 } 323 324 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 } 358 359 static const char *journal_checksum_type_str(__u8 type) 360 { 361 switch (type) { 362 case JBD2_CRC32C_CHKSUM: 363 return "crc32c"; 364 default: 365 return "unknown"; 366 } 367 } 368 369 static void print_inline_journal_information(ext2_filsys fs) 370 { 371 journal_superblock_t *jsb; 372 struct ext2_inode inode; 373 ext2_file_t journal_file; 374 errcode_t retval; 375 ino_t ino = fs->super->s_journal_inum; 376 char buf[1024]; 377 __u32 *mask_ptr, mask, m; 378 int i, j, size, printed = 0; 379 380 if (fs->flags & EXT2_FLAG_IMAGE_FILE) 381 return; 382 retval = ext2fs_read_inode(fs, ino, &inode); 383 if (retval) { 384 com_err(program_name, retval, "%s", 385 _("while reading journal inode")); 386 exit(1); 387 } 388 retval = ext2fs_file_open2(fs, ino, &inode, 0, &journal_file); 389 if (retval) { 390 com_err(program_name, retval, "%s", 391 _("while opening journal inode")); 392 exit(1); 393 } 394 retval = ext2fs_file_read(journal_file, buf, sizeof(buf), 0); 395 if (retval) { 396 com_err(program_name, retval, "%s", 397 _("while reading journal super block")); 398 exit(1); 399 } 400 ext2fs_file_close(journal_file); 401 jsb = (journal_superblock_t *) buf; 402 if (be32_to_cpu(jsb->s_header.h_magic) != JFS_MAGIC_NUMBER) { 403 fprintf(stderr, "%s", 404 _("Journal superblock magic number invalid!\n")); 405 exit(1); 406 } 407 printf("%s", _("Journal features: ")); 408 for (i=0, mask_ptr=&jsb->s_feature_compat; i <3; i++,mask_ptr++) { 409 mask = be32_to_cpu(*mask_ptr); 410 for (j=0,m=1; j < 32; j++, m<<=1) { 411 if (mask & m) { 412 printf(" %s", e2p_jrnl_feature2string(i, m)); 413 printed++; 414 } 415 } 416 } 417 if (printed == 0) 418 printf(" (none)"); 419 printf("\n"); 420 fputs(_("Journal size: "), stdout); 421 if (ext2fs_has_feature_huge_file(fs->super) && 422 (inode.i_flags & EXT4_HUGE_FILE_FL)) 423 size = inode.i_blocks / (fs->blocksize / 1024); 424 else 425 size = inode.i_blocks >> 1; 426 if (size < 8192) 427 printf("%uk\n", size); 428 else 429 printf("%uM\n", size >> 10); 430 printf(_("Journal length: %u\n" 431 "Journal sequence: 0x%08x\n" 432 "Journal start: %u\n"), 433 (unsigned int)ntohl(jsb->s_maxlen), 434 (unsigned int)ntohl(jsb->s_sequence), 435 (unsigned int)ntohl(jsb->s_start)); 436 if (jsb->s_feature_compat & 437 ext2fs_cpu_to_be32(JFS_FEATURE_COMPAT_CHECKSUM)) 438 printf("%s", _("Journal checksum type: crc32\n")); 439 if ((jsb->s_feature_incompat & 440 ext2fs_cpu_to_be32(JFS_FEATURE_INCOMPAT_CSUM_V3)) || 441 (jsb->s_feature_incompat & 442 ext2fs_cpu_to_be32(JFS_FEATURE_INCOMPAT_CSUM_V2))) 443 printf(_("Journal checksum type: %s\n" 444 "Journal checksum: 0x%08x\n"), 445 journal_checksum_type_str(jsb->s_checksum_type), 446 ext2fs_be32_to_cpu(jsb->s_checksum)); 447 if (jsb->s_errno != 0) 448 printf(_("Journal errno: %d\n"), 449 (int) ntohl(jsb->s_errno)); 450 } 451 452 static void print_journal_information(ext2_filsys fs) 453 { 454 errcode_t retval; 455 char buf[1024]; 456 char str[80]; 457 unsigned int i, j, printed = 0; 458 journal_superblock_t *jsb; 459 __u32 *mask_ptr, mask, m; 460 461 /* Get the journal superblock */ 462 if ((retval = io_channel_read_blk64(fs->io, 463 fs->super->s_first_data_block + 1, 464 -1024, buf))) { 465 com_err(program_name, retval, "%s", 466 _("while reading journal superblock")); 467 exit(1); 468 } 469 jsb = (journal_superblock_t *) buf; 470 if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) || 471 (jsb->s_header.h_blocktype != 472 (unsigned) ntohl(JFS_SUPERBLOCK_V2))) { 473 com_err(program_name, 0, "%s", 474 _("Couldn't find journal superblock magic numbers")); 475 exit(1); 476 } 477 478 if (jsb->s_feature_compat & 479 ext2fs_cpu_to_be32(JFS_FEATURE_COMPAT_CHECKSUM)) 480 printf("%s", _("Journal checksum type: crc32\n")); 481 if ((jsb->s_feature_incompat & 482 ext2fs_cpu_to_be32(JFS_FEATURE_INCOMPAT_CSUM_V3)) || 483 (jsb->s_feature_incompat & 484 ext2fs_cpu_to_be32(JFS_FEATURE_INCOMPAT_CSUM_V2))) 485 printf(_("Journal checksum type: %s\n" 486 "Journal checksum: 0x%08x\n"), 487 journal_checksum_type_str(jsb->s_checksum_type), 488 ext2fs_be32_to_cpu(jsb->s_checksum)); 489 490 printf("%s", _("Journal features: ")); 491 for (i = 0, mask_ptr = &jsb->s_feature_compat; i < 3; i++, mask_ptr++) { 492 mask = be32_to_cpu(*mask_ptr); 493 for (j = 0, m = 1; j < 32; j++, m <<= 1) { 494 if (mask & m) { 495 printf(" %s", e2p_jrnl_feature2string(i, m)); 496 printed++; 497 } 498 } 499 } 500 501 printf(_("\nJournal block size: %u\n" 502 "Journal length: %u\n" 503 "Journal first block: %u\n" 504 "Journal sequence: 0x%08x\n" 505 "Journal start: %u\n" 506 "Journal number of users: %u\n"), 507 (unsigned int)ntohl(jsb->s_blocksize), (unsigned int)ntohl(jsb->s_maxlen), 508 (unsigned int)ntohl(jsb->s_first), (unsigned int)ntohl(jsb->s_sequence), 509 (unsigned int)ntohl(jsb->s_start), (unsigned int)ntohl(jsb->s_nr_users)); 510 511 for (i=0; i < ntohl(jsb->s_nr_users); i++) { 512 uuid_unparse(&jsb->s_users[i*16], str); 513 printf(i ? " %s\n" 514 : _("Journal users: %s\n"), 515 str); 516 } 517 } 518 519 static void parse_extended_opts(const char *opts, blk64_t *superblock, 520 int *blocksize) 521 { 522 char *buf, *token, *next, *p, *arg, *badopt = 0; 523 int len; 524 int do_usage = 0; 525 526 len = strlen(opts); 527 buf = malloc(len+1); 528 if (!buf) { 529 fprintf(stderr, "%s", 530 _("Couldn't allocate memory to parse options!\n")); 531 exit(1); 532 } 533 strcpy(buf, opts); 534 for (token = buf; token && *token; token = next) { 535 p = strchr(token, ','); 536 next = 0; 537 if (p) { 538 *p = 0; 539 next = p+1; 540 } 541 arg = strchr(token, '='); 542 if (arg) { 543 *arg = 0; 544 arg++; 545 } 546 if (strcmp(token, "superblock") == 0 || 547 strcmp(token, "sb") == 0) { 548 if (!arg) { 549 do_usage++; 550 badopt = token; 551 continue; 552 } 553 *superblock = strtoul(arg, &p, 0); 554 if (*p) { 555 fprintf(stderr, 556 _("Invalid superblock parameter: %s\n"), 557 arg); 558 do_usage++; 559 continue; 560 } 561 } else if (strcmp(token, "blocksize") == 0 || 562 strcmp(token, "bs") == 0) { 563 if (!arg) { 564 do_usage++; 565 badopt = token; 566 continue; 567 } 568 *blocksize = strtoul(arg, &p, 0); 569 if (*p) { 570 fprintf(stderr, 571 _("Invalid blocksize parameter: %s\n"), 572 arg); 573 do_usage++; 574 continue; 575 } 576 } else { 577 do_usage++; 578 badopt = token; 579 } 580 } 581 if (do_usage) { 582 fprintf(stderr, _("\nBad extended option(s) specified: %s\n\n" 583 "Extended options are separated by commas, " 584 "and may take an argument which\n" 585 "\tis set off by an equals ('=') sign.\n\n" 586 "Valid extended options are:\n" 587 "\tsuperblock=<superblock number>\n" 588 "\tblocksize=<blocksize>\n"), 589 badopt ? badopt : ""); 590 free(buf); 591 exit(1); 592 } 593 free(buf); 594 } 595 596 int main (int argc, char ** argv) 597 { 598 errcode_t retval; 599 ext2_filsys fs; 600 int print_badblocks = 0; 601 blk64_t use_superblock = 0; 602 int use_blocksize = 0; 603 int image_dump = 0; 604 int force = 0; 605 int flags; 606 int header_only = 0; 607 int c; 608 int grp_only = 0; 609 610 #ifdef ENABLE_NLS 611 setlocale(LC_MESSAGES, ""); 612 setlocale(LC_CTYPE, ""); 613 bindtextdomain(NLS_CAT_NAME, LOCALEDIR); 614 textdomain(NLS_CAT_NAME); 615 set_com_err_gettext(gettext); 616 #endif 617 add_error_table(&et_ext2_error_table); 618 fprintf (stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION, 619 E2FSPROGS_DATE); 620 if (argc && *argv) 621 program_name = *argv; 622 623 while ((c = getopt(argc, argv, "bfghixVo:")) != EOF) { 624 switch (c) { 625 case 'b': 626 print_badblocks++; 627 break; 628 case 'f': 629 force++; 630 break; 631 case 'g': 632 grp_only++; 633 break; 634 case 'h': 635 header_only++; 636 break; 637 case 'i': 638 image_dump++; 639 break; 640 case 'o': 641 parse_extended_opts(optarg, &use_superblock, 642 &use_blocksize); 643 break; 644 case 'V': 645 /* Print version number and exit */ 646 fprintf(stderr, _("\tUsing %s\n"), 647 error_message(EXT2_ET_BASE)); 648 exit(0); 649 case 'x': 650 hex_format++; 651 break; 652 default: 653 usage(); 654 } 655 } 656 if (optind != argc - 1) { 657 usage(); 658 exit(1); 659 } 660 device_name = argv[optind++]; 661 flags = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 662 if (force) 663 flags |= EXT2_FLAG_FORCE; 664 if (image_dump) 665 flags |= EXT2_FLAG_IMAGE_FILE; 666 try_open_again: 667 if (use_superblock && !use_blocksize) { 668 for (use_blocksize = EXT2_MIN_BLOCK_SIZE; 669 use_blocksize <= EXT2_MAX_BLOCK_SIZE; 670 use_blocksize *= 2) { 671 retval = ext2fs_open (device_name, flags, 672 use_superblock, 673 use_blocksize, unix_io_manager, 674 &fs); 675 if (!retval) 676 break; 677 } 678 } else 679 retval = ext2fs_open (device_name, flags, use_superblock, 680 use_blocksize, unix_io_manager, &fs); 681 if (retval && !(flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) { 682 flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS; 683 goto try_open_again; 684 } 685 if (!retval && (fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) 686 printf("%s", _("\n*** Checksum errors detected in filesystem! Run e2fsck now!\n\n")); 687 flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS; 688 if (retval) { 689 com_err (program_name, retval, _("while trying to open %s"), 690 device_name); 691 printf("%s", _("Couldn't find valid filesystem superblock.\n")); 692 if (retval == EXT2_ET_BAD_MAGIC) 693 check_plausibility(device_name, CHECK_FS_EXIST, NULL); 694 exit (1); 695 } 696 fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; 697 if (ext2fs_has_feature_64bit(fs->super)) 698 blocks64 = 1; 699 if (print_badblocks) { 700 list_bad_blocks(fs, 1); 701 } else { 702 if (grp_only) 703 goto just_descriptors; 704 list_super (fs->super); 705 if (ext2fs_has_feature_journal_dev(fs->super)) { 706 print_journal_information(fs); 707 ext2fs_close_free(&fs); 708 exit(0); 709 } 710 if (ext2fs_has_feature_journal(fs->super) && 711 (fs->super->s_journal_inum != 0)) 712 print_inline_journal_information(fs); 713 list_bad_blocks(fs, 0); 714 if (header_only) { 715 ext2fs_close_free(&fs); 716 exit (0); 717 } 718 fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS; 719 try_bitmaps_again: 720 retval = ext2fs_read_bitmaps (fs); 721 if (retval && !(fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) { 722 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS; 723 goto try_bitmaps_again; 724 } 725 if (!retval && (fs->flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) 726 printf("%s", _("\n*** Checksum errors detected in bitmaps! Run e2fsck now!\n\n")); 727 just_descriptors: 728 list_desc(fs, grp_only); 729 if (retval) { 730 printf(_("\n%s: %s: error reading bitmaps: %s\n"), 731 program_name, device_name, 732 error_message(retval)); 733 } 734 } 735 ext2fs_close_free(&fs); 736 remove_error_table(&et_ext2_error_table); 737 exit (0); 738 } 739
