debugfs.c revision e88c5a33a841026728fa7c9fcc4bcdca6580b495
1/* 2 * debugfs.c --- a program which allows you to attach an ext2fs 3 * filesystem and play with it. 4 * 5 * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed 6 * under the terms of the GNU Public License. 7 * 8 * Modifications by Robert Sanders <gt8134b@prism.gatech.edu> 9 */ 10 11#include "config.h" 12#include <stdio.h> 13#include <unistd.h> 14#include <stdlib.h> 15#include <ctype.h> 16#include <string.h> 17#include <time.h> 18#ifdef HAVE_GETOPT_H 19#include <getopt.h> 20#else 21extern int optind; 22extern char *optarg; 23#endif 24#ifdef HAVE_ERRNO_H 25#include <errno.h> 26#endif 27#include <fcntl.h> 28#include <sys/types.h> 29#include <sys/stat.h> 30 31#include "et/com_err.h" 32#include "ss/ss.h" 33#include "debugfs.h" 34#include "uuid/uuid.h" 35#include "e2p/e2p.h" 36 37#include <ext2fs/ext2_ext_attr.h> 38 39#include "../version.h" 40#include "jfs_user.h" 41 42extern ss_request_table debug_cmds; 43ss_request_table *extra_cmds; 44const char *debug_prog_name; 45 46ext2_filsys current_fs = NULL; 47ext2_ino_t root, cwd; 48 49static void open_filesystem(char *device, int open_flags, blk64_t superblock, 50 blk64_t blocksize, int catastrophic, 51 char *data_filename) 52{ 53 int retval; 54 io_channel data_io = 0; 55 56 if (superblock != 0 && blocksize == 0) { 57 com_err(device, 0, "if you specify the superblock, you must also specify the block size"); 58 current_fs = NULL; 59 return; 60 } 61 62 if (data_filename) { 63 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) { 64 com_err(device, 0, 65 "The -d option is only valid when reading an e2image file"); 66 current_fs = NULL; 67 return; 68 } 69 retval = unix_io_manager->open(data_filename, 0, &data_io); 70 if (retval) { 71 com_err(data_filename, 0, "while opening data source"); 72 current_fs = NULL; 73 return; 74 } 75 } 76 77 if (catastrophic && (open_flags & EXT2_FLAG_RW)) { 78 com_err(device, 0, 79 "opening read-only because of catastrophic mode"); 80 open_flags &= ~EXT2_FLAG_RW; 81 } 82 if (catastrophic) 83 open_flags |= EXT2_FLAG_SKIP_MMP; 84 85 retval = ext2fs_open(device, open_flags, superblock, blocksize, 86 unix_io_manager, ¤t_fs); 87 if (retval) { 88 com_err(device, retval, "while opening filesystem"); 89 current_fs = NULL; 90 return; 91 } 92 93 if (catastrophic) 94 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps"); 95 else { 96 retval = ext2fs_read_inode_bitmap(current_fs); 97 if (retval) { 98 com_err(device, retval, "while reading inode bitmap"); 99 goto errout; 100 } 101 retval = ext2fs_read_block_bitmap(current_fs); 102 if (retval) { 103 com_err(device, retval, "while reading block bitmap"); 104 goto errout; 105 } 106 } 107 108 if (data_io) { 109 retval = ext2fs_set_data_io(current_fs, data_io); 110 if (retval) { 111 com_err(device, retval, 112 "while setting data source"); 113 goto errout; 114 } 115 } 116 117 root = cwd = EXT2_ROOT_INO; 118 return; 119 120errout: 121 retval = ext2fs_close(current_fs); 122 if (retval) 123 com_err(device, retval, "while trying to close filesystem"); 124 current_fs = NULL; 125} 126 127void do_open_filesys(int argc, char **argv) 128{ 129 int c, err; 130 int catastrophic = 0; 131 blk64_t superblock = 0; 132 blk64_t blocksize = 0; 133 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 134 char *data_filename = 0; 135 136 reset_getopt(); 137 while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) { 138 switch (c) { 139 case 'i': 140 open_flags |= EXT2_FLAG_IMAGE_FILE; 141 break; 142 case 'w': 143#ifdef READ_ONLY 144 goto print_usage; 145#else 146 open_flags |= EXT2_FLAG_RW; 147#endif /* READ_ONLY */ 148 break; 149 case 'f': 150 open_flags |= EXT2_FLAG_FORCE; 151 break; 152 case 'e': 153 open_flags |= EXT2_FLAG_EXCLUSIVE; 154 break; 155 case 'c': 156 catastrophic = 1; 157 break; 158 case 'd': 159 data_filename = optarg; 160 break; 161 case 'D': 162 open_flags |= EXT2_FLAG_DIRECT_IO; 163 break; 164 case 'b': 165 blocksize = parse_ulong(optarg, argv[0], 166 "block size", &err); 167 if (err) 168 return; 169 break; 170 case 's': 171 superblock = parse_ulong(optarg, argv[0], 172 "superblock number", &err); 173 if (err) 174 return; 175 break; 176 default: 177 goto print_usage; 178 } 179 } 180 if (optind != argc-1) { 181 goto print_usage; 182 } 183 if (check_fs_not_open(argv[0])) 184 return; 185 open_filesystem(argv[optind], open_flags, 186 superblock, blocksize, catastrophic, 187 data_filename); 188 return; 189 190print_usage: 191 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] [-c] " 192#ifndef READ_ONLY 193 "[-w] " 194#endif 195 "<device>\n", argv[0]); 196} 197 198void do_lcd(int argc, char **argv) 199{ 200 if (argc != 2) { 201 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>"); 202 return; 203 } 204 205 if (chdir(argv[1]) == -1) { 206 com_err(argv[0], errno, 207 "while trying to change native directory to %s", 208 argv[1]); 209 return; 210 } 211} 212 213static void close_filesystem(NOARGS) 214{ 215 int retval; 216 217 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) { 218 retval = ext2fs_write_inode_bitmap(current_fs); 219 if (retval) 220 com_err("ext2fs_write_inode_bitmap", retval, 0); 221 } 222 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) { 223 retval = ext2fs_write_block_bitmap(current_fs); 224 if (retval) 225 com_err("ext2fs_write_block_bitmap", retval, 0); 226 } 227 retval = ext2fs_close(current_fs); 228 if (retval) 229 com_err("ext2fs_close", retval, 0); 230 current_fs = NULL; 231 return; 232} 233 234void do_close_filesys(int argc, char **argv) 235{ 236 int c; 237 238 if (check_fs_open(argv[0])) 239 return; 240 241 reset_getopt(); 242 while ((c = getopt (argc, argv, "a")) != EOF) { 243 switch (c) { 244 case 'a': 245 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 246 break; 247 default: 248 goto print_usage; 249 } 250 } 251 252 if (argc > optind) { 253 print_usage: 254 com_err(0, 0, "Usage: close_filesys [-a]"); 255 return; 256 } 257 258 close_filesystem(); 259} 260 261#ifndef READ_ONLY 262void do_init_filesys(int argc, char **argv) 263{ 264 struct ext2_super_block param; 265 errcode_t retval; 266 int err; 267 268 if (common_args_process(argc, argv, 3, 3, "initialize", 269 "<device> <blocksize>", CHECK_FS_NOTOPEN)) 270 return; 271 272 memset(¶m, 0, sizeof(struct ext2_super_block)); 273 ext2fs_blocks_count_set(¶m, parse_ulong(argv[2], argv[0], 274 "blocks count", &err)); 275 if (err) 276 return; 277 retval = ext2fs_initialize(argv[1], 0, ¶m, 278 unix_io_manager, ¤t_fs); 279 if (retval) { 280 com_err(argv[1], retval, "while initializing filesystem"); 281 current_fs = NULL; 282 return; 283 } 284 root = cwd = EXT2_ROOT_INO; 285 return; 286} 287#endif /* READ_ONLY */ 288 289static void print_features(struct ext2_super_block * s, FILE *f) 290{ 291 int i, j, printed=0; 292 __u32 *mask = &s->s_feature_compat, m; 293 294 fputs("Filesystem features:", f); 295 for (i=0; i <3; i++,mask++) { 296 for (j=0,m=1; j < 32; j++, m<<=1) { 297 if (*mask & m) { 298 fprintf(f, " %s", e2p_feature2string(i, m)); 299 printed++; 300 } 301 } 302 } 303 if (printed == 0) 304 fputs("(none)", f); 305 fputs("\n", f); 306} 307 308static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask, 309 const char *str, int *first, FILE *f) 310{ 311 if (ext2fs_bg_flags_test(fs, group, mask)) { 312 if (*first) { 313 fputs(" [", f); 314 *first = 0; 315 } else 316 fputs(", ", f); 317 fputs(str, f); 318 } 319} 320 321void do_show_super_stats(int argc, char *argv[]) 322{ 323 const char *units ="block"; 324 dgrp_t i; 325 FILE *out; 326 int c, header_only = 0; 327 int numdirs = 0, first, gdt_csum; 328 329 reset_getopt(); 330 while ((c = getopt (argc, argv, "h")) != EOF) { 331 switch (c) { 332 case 'h': 333 header_only++; 334 break; 335 default: 336 goto print_usage; 337 } 338 } 339 if (optind != argc) { 340 goto print_usage; 341 } 342 if (check_fs_open(argv[0])) 343 return; 344 out = open_pager(); 345 346 if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, 347 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 348 units = "cluster"; 349 350 list_super2(current_fs->super, out); 351 for (i=0; i < current_fs->group_desc_count; i++) 352 numdirs += ext2fs_bg_used_dirs_count(current_fs, i); 353 fprintf(out, "Directories: %d\n", numdirs); 354 355 if (header_only) { 356 close_pager(out); 357 return; 358 } 359 360 gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, 361 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 362 for (i = 0; i < current_fs->group_desc_count; i++) { 363 fprintf(out, " Group %2d: block bitmap at %llu, " 364 "inode bitmap at %llu, " 365 "inode table at %llu\n" 366 " %u free %s%s, " 367 "%u free %s, " 368 "%u used %s%s", 369 i, ext2fs_block_bitmap_loc(current_fs, i), 370 ext2fs_inode_bitmap_loc(current_fs, i), 371 ext2fs_inode_table_loc(current_fs, i), 372 ext2fs_bg_free_blocks_count(current_fs, i), units, 373 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ? 374 "s" : "", 375 ext2fs_bg_free_inodes_count(current_fs, i), 376 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ? 377 "inodes" : "inode", 378 ext2fs_bg_used_dirs_count(current_fs, i), 379 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories" 380 : "directory", gdt_csum ? ", " : "\n"); 381 if (gdt_csum) 382 fprintf(out, "%u unused %s\n", 383 ext2fs_bg_itable_unused(current_fs, i), 384 ext2fs_bg_itable_unused(current_fs, i) != 1 ? 385 "inodes" : "inode"); 386 first = 1; 387 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init", 388 &first, out); 389 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init", 390 &first, out); 391 if (gdt_csum) { 392 fprintf(out, "%sChecksum 0x%04x", 393 first ? " [":", ", ext2fs_bg_checksum(current_fs, i)); 394 first = 0; 395 } 396 if (!first) 397 fputs("]\n", out); 398 } 399 close_pager(out); 400 return; 401print_usage: 402 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]); 403} 404 405#ifndef READ_ONLY 406void do_dirty_filesys(int argc EXT2FS_ATTR((unused)), 407 char **argv EXT2FS_ATTR((unused))) 408{ 409 if (check_fs_open(argv[0])) 410 return; 411 if (check_fs_read_write(argv[0])) 412 return; 413 414 if (argv[1] && !strcmp(argv[1], "-clean")) 415 current_fs->super->s_state |= EXT2_VALID_FS; 416 else 417 current_fs->super->s_state &= ~EXT2_VALID_FS; 418 ext2fs_mark_super_dirty(current_fs); 419} 420#endif /* READ_ONLY */ 421 422struct list_blocks_struct { 423 FILE *f; 424 e2_blkcnt_t total; 425 blk64_t first_block, last_block; 426 e2_blkcnt_t first_bcnt, last_bcnt; 427 e2_blkcnt_t first; 428}; 429 430static void finish_range(struct list_blocks_struct *lb) 431{ 432 if (lb->first_block == 0) 433 return; 434 if (lb->first) 435 lb->first = 0; 436 else 437 fprintf(lb->f, ", "); 438 if (lb->first_block == lb->last_block) 439 fprintf(lb->f, "(%lld):%llu", 440 (long long)lb->first_bcnt, lb->first_block); 441 else 442 fprintf(lb->f, "(%lld-%lld):%llu-%llu", 443 (long long)lb->first_bcnt, (long long)lb->last_bcnt, 444 lb->first_block, lb->last_block); 445 lb->first_block = 0; 446} 447 448static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 449 blk64_t *blocknr, e2_blkcnt_t blockcnt, 450 blk64_t ref_block EXT2FS_ATTR((unused)), 451 int ref_offset EXT2FS_ATTR((unused)), 452 void *private) 453{ 454 struct list_blocks_struct *lb = (struct list_blocks_struct *) private; 455 456 lb->total++; 457 if (blockcnt >= 0) { 458 /* 459 * See if we can add on to the existing range (if it exists) 460 */ 461 if (lb->first_block && 462 (lb->last_block+1 == *blocknr) && 463 (lb->last_bcnt+1 == blockcnt)) { 464 lb->last_block = *blocknr; 465 lb->last_bcnt = blockcnt; 466 return 0; 467 } 468 /* 469 * Start a new range. 470 */ 471 finish_range(lb); 472 lb->first_block = lb->last_block = *blocknr; 473 lb->first_bcnt = lb->last_bcnt = blockcnt; 474 return 0; 475 } 476 /* 477 * Not a normal block. Always force a new range. 478 */ 479 finish_range(lb); 480 if (lb->first) 481 lb->first = 0; 482 else 483 fprintf(lb->f, ", "); 484 if (blockcnt == -1) 485 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr); 486 else if (blockcnt == -2) 487 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr); 488 else if (blockcnt == -3) 489 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr); 490 return 0; 491} 492 493static void dump_xattr_string(FILE *out, const char *str, int len) 494{ 495 int printable = 0; 496 int i; 497 498 /* check: is string "printable enough?" */ 499 for (i = 0; i < len; i++) 500 if (isprint(str[i])) 501 printable++; 502 503 if (printable <= len*7/8) 504 printable = 0; 505 506 for (i = 0; i < len; i++) 507 if (printable) 508 fprintf(out, isprint(str[i]) ? "%c" : "\\%03o", 509 (unsigned char)str[i]); 510 else 511 fprintf(out, "%02x ", (unsigned char)str[i]); 512} 513 514static void internal_dump_inode_extra(FILE *out, 515 const char *prefix EXT2FS_ATTR((unused)), 516 ext2_ino_t inode_num EXT2FS_ATTR((unused)), 517 struct ext2_inode_large *inode) 518{ 519 struct ext2_ext_attr_entry *entry; 520 __u32 *magic; 521 char *start, *end; 522 unsigned int storage_size; 523 524 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize); 525 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) - 526 EXT2_GOOD_OLD_INODE_SIZE) { 527 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n", 528 inode->i_extra_isize); 529 return; 530 } 531 storage_size = EXT2_INODE_SIZE(current_fs->super) - 532 EXT2_GOOD_OLD_INODE_SIZE - 533 inode->i_extra_isize; 534 magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE + 535 inode->i_extra_isize); 536 if (*magic == EXT2_EXT_ATTR_MAGIC) { 537 fprintf(out, "Extended attributes stored in inode body: \n"); 538 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super); 539 start = (char *) magic + sizeof(__u32); 540 entry = (struct ext2_ext_attr_entry *) start; 541 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) { 542 struct ext2_ext_attr_entry *next = 543 EXT2_EXT_ATTR_NEXT(entry); 544 if (entry->e_value_size > storage_size || 545 (char *) next >= end) { 546 fprintf(out, "invalid EA entry in inode\n"); 547 return; 548 } 549 fprintf(out, " "); 550 dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry), 551 entry->e_name_len); 552 fprintf(out, " = \""); 553 dump_xattr_string(out, start + entry->e_value_offs, 554 entry->e_value_size); 555 fprintf(out, "\" (%u)\n", entry->e_value_size); 556 entry = next; 557 } 558 } 559} 560 561static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode) 562{ 563 struct list_blocks_struct lb; 564 565 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix); 566 lb.total = 0; 567 lb.first_block = 0; 568 lb.f = f; 569 lb.first = 1; 570 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 571 list_blocks_proc, (void *)&lb); 572 finish_range(&lb); 573 if (lb.total) 574 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total); 575 fprintf(f,"\n"); 576} 577 578static int int_log10(unsigned long long arg) 579{ 580 int l = 0; 581 582 arg = arg / 10; 583 while (arg) { 584 l++; 585 arg = arg / 10; 586 } 587 return l; 588} 589 590#define DUMP_LEAF_EXTENTS 0x01 591#define DUMP_NODE_EXTENTS 0x02 592#define DUMP_EXTENT_TABLE 0x04 593 594static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino, 595 int flags, int logical_width, int physical_width) 596{ 597 ext2_extent_handle_t handle; 598 struct ext2fs_extent extent; 599 struct ext2_extent_info info; 600 int op = EXT2_EXTENT_ROOT; 601 unsigned int printed = 0; 602 errcode_t errcode; 603 604 errcode = ext2fs_extent_open(current_fs, ino, &handle); 605 if (errcode) 606 return; 607 608 if (flags & DUMP_EXTENT_TABLE) 609 fprintf(f, "Level Entries %*s %*s Length Flags\n", 610 (logical_width*2)+3, "Logical", 611 (physical_width*2)+3, "Physical"); 612 else 613 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix); 614 615 while (1) { 616 errcode = ext2fs_extent_get(handle, op, &extent); 617 618 if (errcode) 619 break; 620 621 op = EXT2_EXTENT_NEXT; 622 623 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 624 continue; 625 626 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) { 627 if ((flags & DUMP_LEAF_EXTENTS) == 0) 628 continue; 629 } else { 630 if ((flags & DUMP_NODE_EXTENTS) == 0) 631 continue; 632 } 633 634 errcode = ext2fs_extent_get_info(handle, &info); 635 if (errcode) 636 continue; 637 638 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) { 639 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 640 continue; 641 642 if (flags & DUMP_EXTENT_TABLE) { 643 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 644 "%*llu%*s %6u\n", 645 info.curr_level, info.max_depth, 646 info.curr_entry, info.num_entries, 647 logical_width, 648 extent.e_lblk, 649 logical_width, 650 extent.e_lblk + (extent.e_len - 1), 651 physical_width, 652 extent.e_pblk, 653 physical_width+3, "", extent.e_len); 654 continue; 655 } 656 657 fprintf(f, "%s(ETB%d):%lld", 658 printed ? ", " : "", info.curr_level, 659 extent.e_pblk); 660 printed = 1; 661 continue; 662 } 663 664 if (flags & DUMP_EXTENT_TABLE) { 665 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 666 "%*llu - %*llu %6u %s\n", 667 info.curr_level, info.max_depth, 668 info.curr_entry, info.num_entries, 669 logical_width, 670 extent.e_lblk, 671 logical_width, 672 extent.e_lblk + (extent.e_len - 1), 673 physical_width, 674 extent.e_pblk, 675 physical_width, 676 extent.e_pblk + (extent.e_len - 1), 677 extent.e_len, 678 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 679 "Uninit" : ""); 680 continue; 681 } 682 683 if (extent.e_len == 0) 684 continue; 685 else if (extent.e_len == 1) 686 fprintf(f, 687 "%s(%lld%s):%lld", 688 printed ? ", " : "", 689 extent.e_lblk, 690 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 691 "[u]" : "", 692 extent.e_pblk); 693 else 694 fprintf(f, 695 "%s(%lld-%lld%s):%lld-%lld", 696 printed ? ", " : "", 697 extent.e_lblk, 698 extent.e_lblk + (extent.e_len - 1), 699 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 700 "[u]" : "", 701 extent.e_pblk, 702 extent.e_pblk + (extent.e_len - 1)); 703 printed = 1; 704 } 705 if (printed) 706 fprintf(f, "\n"); 707} 708 709void internal_dump_inode(FILE *out, const char *prefix, 710 ext2_ino_t inode_num, struct ext2_inode *inode, 711 int do_dump_blocks) 712{ 713 const char *i_type; 714 char frag, fsize; 715 int os = current_fs->super->s_creator_os; 716 struct ext2_inode_large *large_inode; 717 int is_large_inode = 0; 718 719 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 720 is_large_inode = 1; 721 large_inode = (struct ext2_inode_large *) inode; 722 723 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory"; 724 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular"; 725 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink"; 726 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special"; 727 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special"; 728 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO"; 729 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket"; 730 else i_type = "bad type"; 731 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type); 732 fprintf(out, "%sMode: %04o Flags: 0x%x\n", 733 prefix, inode->i_mode & 0777, inode->i_flags); 734 if (is_large_inode && large_inode->i_extra_isize >= 24) { 735 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n", 736 prefix, inode->i_generation, large_inode->i_version_hi, 737 inode->osd1.linux1.l_i_version); 738 } else { 739 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix, 740 inode->i_generation, inode->osd1.linux1.l_i_version); 741 } 742 fprintf(out, "%sUser: %5d Group: %5d Size: ", 743 prefix, inode_uid(*inode), inode_gid(*inode)); 744 if (LINUX_S_ISREG(inode->i_mode)) 745 fprintf(out, "%llu\n", EXT2_I_SIZE(inode)); 746 else 747 fprintf(out, "%d\n", inode->i_size); 748 if (os == EXT2_OS_HURD) 749 fprintf(out, 750 "%sFile ACL: %d Directory ACL: %d Translator: %d\n", 751 prefix, 752 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0, 753 inode->osd1.hurd1.h_i_translator); 754 else 755 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n", 756 prefix, 757 inode->i_file_acl | ((long long) 758 (inode->osd2.linux2.l_i_file_acl_high) << 32), 759 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0); 760 if (os == EXT2_OS_LINUX) 761 fprintf(out, "%sLinks: %d Blockcount: %llu\n", 762 prefix, inode->i_links_count, 763 (((unsigned long long) 764 inode->osd2.linux2.l_i_blocks_hi << 32)) + 765 inode->i_blocks); 766 else 767 fprintf(out, "%sLinks: %d Blockcount: %u\n", 768 prefix, inode->i_links_count, inode->i_blocks); 769 switch (os) { 770 case EXT2_OS_HURD: 771 frag = inode->osd2.hurd2.h_i_frag; 772 fsize = inode->osd2.hurd2.h_i_fsize; 773 break; 774 default: 775 frag = fsize = 0; 776 } 777 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n", 778 prefix, inode->i_faddr, frag, fsize); 779 if (is_large_inode && large_inode->i_extra_isize >= 24) { 780 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix, 781 inode->i_ctime, large_inode->i_ctime_extra, 782 time_to_string(inode->i_ctime)); 783 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix, 784 inode->i_atime, large_inode->i_atime_extra, 785 time_to_string(inode->i_atime)); 786 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix, 787 inode->i_mtime, large_inode->i_mtime_extra, 788 time_to_string(inode->i_mtime)); 789 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix, 790 large_inode->i_crtime, large_inode->i_crtime_extra, 791 time_to_string(large_inode->i_crtime)); 792 } else { 793 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime, 794 time_to_string(inode->i_ctime)); 795 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime, 796 time_to_string(inode->i_atime)); 797 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime, 798 time_to_string(inode->i_mtime)); 799 } 800 if (inode->i_dtime) 801 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime, 802 time_to_string(inode->i_dtime)); 803 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 804 internal_dump_inode_extra(out, prefix, inode_num, 805 (struct ext2_inode_large *) inode); 806 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0) 807 fprintf(out, "%sFast_link_dest: %.*s\n", prefix, 808 (int) inode->i_size, (char *)inode->i_block); 809 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) { 810 int major, minor; 811 const char *devnote; 812 813 if (inode->i_block[0]) { 814 major = (inode->i_block[0] >> 8) & 255; 815 minor = inode->i_block[0] & 255; 816 devnote = ""; 817 } else { 818 major = (inode->i_block[1] & 0xfff00) >> 8; 819 minor = ((inode->i_block[1] & 0xff) | 820 ((inode->i_block[1] >> 12) & 0xfff00)); 821 devnote = "(New-style) "; 822 } 823 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n", 824 devnote, major, minor, major, minor); 825 } else if (do_dump_blocks) { 826 if (inode->i_flags & EXT4_EXTENTS_FL) 827 dump_extents(out, prefix, inode_num, 828 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0); 829 else 830 dump_blocks(out, prefix, inode_num); 831 } 832} 833 834static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode) 835{ 836 FILE *out; 837 838 out = open_pager(); 839 internal_dump_inode(out, "", inode_num, inode, 1); 840 close_pager(out); 841} 842 843void do_stat(int argc, char *argv[]) 844{ 845 ext2_ino_t inode; 846 struct ext2_inode * inode_buf; 847 848 if (check_fs_open(argv[0])) 849 return; 850 851 inode_buf = (struct ext2_inode *) 852 malloc(EXT2_INODE_SIZE(current_fs->super)); 853 if (!inode_buf) { 854 fprintf(stderr, "do_stat: can't allocate buffer\n"); 855 return; 856 } 857 858 if (common_inode_args_process(argc, argv, &inode, 0)) { 859 free(inode_buf); 860 return; 861 } 862 863 if (debugfs_read_inode_full(inode, inode_buf, argv[0], 864 EXT2_INODE_SIZE(current_fs->super))) { 865 free(inode_buf); 866 return; 867 } 868 869 dump_inode(inode, inode_buf); 870 free(inode_buf); 871 return; 872} 873 874void do_dump_extents(int argc, char **argv) 875{ 876 struct ext2_inode inode; 877 ext2_ino_t ino; 878 FILE *out; 879 int c, flags = 0; 880 int logical_width; 881 int physical_width; 882 883 reset_getopt(); 884 while ((c = getopt(argc, argv, "nl")) != EOF) { 885 switch (c) { 886 case 'n': 887 flags |= DUMP_NODE_EXTENTS; 888 break; 889 case 'l': 890 flags |= DUMP_LEAF_EXTENTS; 891 break; 892 } 893 } 894 895 if (argc != optind + 1) { 896 com_err(0, 0, "Usage: dump_extents [-n] [-l] file"); 897 return; 898 } 899 900 if (flags == 0) 901 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS; 902 flags |= DUMP_EXTENT_TABLE; 903 904 if (check_fs_open(argv[0])) 905 return; 906 907 ino = string_to_inode(argv[optind]); 908 if (ino == 0) 909 return; 910 911 if (debugfs_read_inode(ino, &inode, argv[0])) 912 return; 913 914 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) { 915 fprintf(stderr, "%s: does not uses extent block maps\n", 916 argv[optind]); 917 return; 918 } 919 920 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/ 921 current_fs->blocksize) + 1; 922 if (logical_width < 5) 923 logical_width = 5; 924 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1; 925 if (physical_width < 5) 926 physical_width = 5; 927 928 out = open_pager(); 929 dump_extents(out, "", ino, flags, logical_width, physical_width); 930 close_pager(out); 931 return; 932} 933 934static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 935 blk64_t *blocknr, 936 e2_blkcnt_t blockcnt, 937 blk64_t ref_block EXT2FS_ATTR((unused)), 938 int ref_offset EXT2FS_ATTR((unused)), 939 void *private EXT2FS_ATTR((unused))) 940{ 941 printf("%llu ", *blocknr); 942 return 0; 943} 944 945void do_blocks(int argc, char *argv[]) 946{ 947 ext2_ino_t inode; 948 949 if (check_fs_open(argv[0])) 950 return; 951 952 if (common_inode_args_process(argc, argv, &inode, 0)) { 953 return; 954 } 955 956 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 957 print_blocks_proc, NULL); 958 fputc('\n', stdout); 959 return; 960} 961 962void do_chroot(int argc, char *argv[]) 963{ 964 ext2_ino_t inode; 965 int retval; 966 967 if (common_inode_args_process(argc, argv, &inode, 0)) 968 return; 969 970 retval = ext2fs_check_directory(current_fs, inode); 971 if (retval) { 972 com_err(argv[1], retval, 0); 973 return; 974 } 975 root = inode; 976} 977 978#ifndef READ_ONLY 979void do_clri(int argc, char *argv[]) 980{ 981 ext2_ino_t inode; 982 struct ext2_inode inode_buf; 983 984 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 985 return; 986 987 if (debugfs_read_inode(inode, &inode_buf, argv[0])) 988 return; 989 memset(&inode_buf, 0, sizeof(inode_buf)); 990 if (debugfs_write_inode(inode, &inode_buf, argv[0])) 991 return; 992} 993 994void do_freei(int argc, char *argv[]) 995{ 996 ext2_ino_t inode; 997 998 if (common_inode_args_process(argc, argv, &inode, 999 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1000 return; 1001 1002 if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1003 com_err(argv[0], 0, "Warning: inode already clear"); 1004 ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode); 1005 ext2fs_mark_ib_dirty(current_fs); 1006} 1007 1008void do_seti(int argc, char *argv[]) 1009{ 1010 ext2_ino_t inode; 1011 1012 if (common_inode_args_process(argc, argv, &inode, 1013 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1014 return; 1015 1016 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1017 com_err(argv[0], 0, "Warning: inode already set"); 1018 ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode); 1019 ext2fs_mark_ib_dirty(current_fs); 1020} 1021#endif /* READ_ONLY */ 1022 1023void do_testi(int argc, char *argv[]) 1024{ 1025 ext2_ino_t inode; 1026 1027 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS)) 1028 return; 1029 1030 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1031 printf("Inode %u is marked in use\n", inode); 1032 else 1033 printf("Inode %u is not in use\n", inode); 1034} 1035 1036#ifndef READ_ONLY 1037void do_freeb(int argc, char *argv[]) 1038{ 1039 blk64_t block; 1040 blk64_t count = 1; 1041 1042 if (common_block_args_process(argc, argv, &block, &count)) 1043 return; 1044 if (check_fs_read_write(argv[0])) 1045 return; 1046 while (count-- > 0) { 1047 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1048 com_err(argv[0], 0, "Warning: block %llu already clear", 1049 block); 1050 ext2fs_unmark_block_bitmap2(current_fs->block_map,block); 1051 block++; 1052 } 1053 ext2fs_mark_bb_dirty(current_fs); 1054} 1055 1056void do_setb(int argc, char *argv[]) 1057{ 1058 blk64_t block; 1059 blk64_t count = 1; 1060 1061 if (common_block_args_process(argc, argv, &block, &count)) 1062 return; 1063 if (check_fs_read_write(argv[0])) 1064 return; 1065 while (count-- > 0) { 1066 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1067 com_err(argv[0], 0, "Warning: block %llu already set", 1068 block); 1069 ext2fs_mark_block_bitmap2(current_fs->block_map,block); 1070 block++; 1071 } 1072 ext2fs_mark_bb_dirty(current_fs); 1073} 1074#endif /* READ_ONLY */ 1075 1076void do_testb(int argc, char *argv[]) 1077{ 1078 blk64_t block; 1079 blk64_t count = 1; 1080 1081 if (common_block_args_process(argc, argv, &block, &count)) 1082 return; 1083 while (count-- > 0) { 1084 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1085 printf("Block %llu marked in use\n", block); 1086 else 1087 printf("Block %llu not in use\n", block); 1088 block++; 1089 } 1090} 1091 1092#ifndef READ_ONLY 1093static void modify_u8(char *com, const char *prompt, 1094 const char *format, __u8 *val) 1095{ 1096 char buf[200]; 1097 unsigned long v; 1098 char *tmp; 1099 1100 sprintf(buf, format, *val); 1101 printf("%30s [%s] ", prompt, buf); 1102 if (!fgets(buf, sizeof(buf), stdin)) 1103 return; 1104 if (buf[strlen (buf) - 1] == '\n') 1105 buf[strlen (buf) - 1] = '\0'; 1106 if (!buf[0]) 1107 return; 1108 v = strtoul(buf, &tmp, 0); 1109 if (*tmp) 1110 com_err(com, 0, "Bad value - %s", buf); 1111 else 1112 *val = v; 1113} 1114 1115static void modify_u16(char *com, const char *prompt, 1116 const char *format, __u16 *val) 1117{ 1118 char buf[200]; 1119 unsigned long v; 1120 char *tmp; 1121 1122 sprintf(buf, format, *val); 1123 printf("%30s [%s] ", prompt, buf); 1124 if (!fgets(buf, sizeof(buf), stdin)) 1125 return; 1126 if (buf[strlen (buf) - 1] == '\n') 1127 buf[strlen (buf) - 1] = '\0'; 1128 if (!buf[0]) 1129 return; 1130 v = strtoul(buf, &tmp, 0); 1131 if (*tmp) 1132 com_err(com, 0, "Bad value - %s", buf); 1133 else 1134 *val = v; 1135} 1136 1137static void modify_u32(char *com, const char *prompt, 1138 const char *format, __u32 *val) 1139{ 1140 char buf[200]; 1141 unsigned long v; 1142 char *tmp; 1143 1144 sprintf(buf, format, *val); 1145 printf("%30s [%s] ", prompt, buf); 1146 if (!fgets(buf, sizeof(buf), stdin)) 1147 return; 1148 if (buf[strlen (buf) - 1] == '\n') 1149 buf[strlen (buf) - 1] = '\0'; 1150 if (!buf[0]) 1151 return; 1152 v = strtoul(buf, &tmp, 0); 1153 if (*tmp) 1154 com_err(com, 0, "Bad value - %s", buf); 1155 else 1156 *val = v; 1157} 1158 1159 1160void do_modify_inode(int argc, char *argv[]) 1161{ 1162 struct ext2_inode inode; 1163 ext2_ino_t inode_num; 1164 int i; 1165 unsigned char *frag, *fsize; 1166 char buf[80]; 1167 int os; 1168 const char *hex_format = "0x%x"; 1169 const char *octal_format = "0%o"; 1170 const char *decimal_format = "%d"; 1171 const char *unsignedlong_format = "%lu"; 1172 1173 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1174 return; 1175 1176 os = current_fs->super->s_creator_os; 1177 1178 if (debugfs_read_inode(inode_num, &inode, argv[1])) 1179 return; 1180 1181 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode); 1182 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid); 1183 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid); 1184 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size); 1185 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime); 1186 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime); 1187 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime); 1188 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime); 1189 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count); 1190 if (os == EXT2_OS_LINUX) 1191 modify_u16(argv[0], "Block count high", unsignedlong_format, 1192 &inode.osd2.linux2.l_i_blocks_hi); 1193 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks); 1194 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags); 1195 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation); 1196#if 0 1197 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1); 1198#endif 1199 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl); 1200 if (LINUX_S_ISDIR(inode.i_mode)) 1201 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl); 1202 else 1203 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high); 1204 1205 if (os == EXT2_OS_HURD) 1206 modify_u32(argv[0], "Translator Block", 1207 decimal_format, &inode.osd1.hurd1.h_i_translator); 1208 1209 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr); 1210 switch (os) { 1211 case EXT2_OS_HURD: 1212 frag = &inode.osd2.hurd2.h_i_frag; 1213 fsize = &inode.osd2.hurd2.h_i_fsize; 1214 break; 1215 default: 1216 frag = fsize = 0; 1217 } 1218 if (frag) 1219 modify_u8(argv[0], "Fragment number", decimal_format, frag); 1220 if (fsize) 1221 modify_u8(argv[0], "Fragment size", decimal_format, fsize); 1222 1223 for (i=0; i < EXT2_NDIR_BLOCKS; i++) { 1224 sprintf(buf, "Direct Block #%d", i); 1225 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]); 1226 } 1227 modify_u32(argv[0], "Indirect Block", decimal_format, 1228 &inode.i_block[EXT2_IND_BLOCK]); 1229 modify_u32(argv[0], "Double Indirect Block", decimal_format, 1230 &inode.i_block[EXT2_DIND_BLOCK]); 1231 modify_u32(argv[0], "Triple Indirect Block", decimal_format, 1232 &inode.i_block[EXT2_TIND_BLOCK]); 1233 if (debugfs_write_inode(inode_num, &inode, argv[1])) 1234 return; 1235} 1236#endif /* READ_ONLY */ 1237 1238void do_change_working_dir(int argc, char *argv[]) 1239{ 1240 ext2_ino_t inode; 1241 int retval; 1242 1243 if (common_inode_args_process(argc, argv, &inode, 0)) 1244 return; 1245 1246 retval = ext2fs_check_directory(current_fs, inode); 1247 if (retval) { 1248 com_err(argv[1], retval, 0); 1249 return; 1250 } 1251 cwd = inode; 1252 return; 1253} 1254 1255void do_print_working_directory(int argc, char *argv[]) 1256{ 1257 int retval; 1258 char *pathname = NULL; 1259 1260 if (common_args_process(argc, argv, 1, 1, 1261 "print_working_directory", "", 0)) 1262 return; 1263 1264 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname); 1265 if (retval) { 1266 com_err(argv[0], retval, 1267 "while trying to get pathname of cwd"); 1268 } 1269 printf("[pwd] INODE: %6u PATH: %s\n", 1270 cwd, pathname ? pathname : "NULL"); 1271 if (pathname) { 1272 free(pathname); 1273 pathname = NULL; 1274 } 1275 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname); 1276 if (retval) { 1277 com_err(argv[0], retval, 1278 "while trying to get pathname of root"); 1279 } 1280 printf("[root] INODE: %6u PATH: %s\n", 1281 root, pathname ? pathname : "NULL"); 1282 if (pathname) { 1283 free(pathname); 1284 pathname = NULL; 1285 } 1286 return; 1287} 1288 1289/* 1290 * Given a mode, return the ext2 file type 1291 */ 1292static int ext2_file_type(unsigned int mode) 1293{ 1294 if (LINUX_S_ISREG(mode)) 1295 return EXT2_FT_REG_FILE; 1296 1297 if (LINUX_S_ISDIR(mode)) 1298 return EXT2_FT_DIR; 1299 1300 if (LINUX_S_ISCHR(mode)) 1301 return EXT2_FT_CHRDEV; 1302 1303 if (LINUX_S_ISBLK(mode)) 1304 return EXT2_FT_BLKDEV; 1305 1306 if (LINUX_S_ISLNK(mode)) 1307 return EXT2_FT_SYMLINK; 1308 1309 if (LINUX_S_ISFIFO(mode)) 1310 return EXT2_FT_FIFO; 1311 1312 if (LINUX_S_ISSOCK(mode)) 1313 return EXT2_FT_SOCK; 1314 1315 return 0; 1316} 1317 1318#ifndef READ_ONLY 1319static void make_link(char *sourcename, char *destname) 1320{ 1321 ext2_ino_t ino; 1322 struct ext2_inode inode; 1323 int retval; 1324 ext2_ino_t dir; 1325 char *dest, *cp, *base_name; 1326 1327 /* 1328 * Get the source inode 1329 */ 1330 ino = string_to_inode(sourcename); 1331 if (!ino) 1332 return; 1333 base_name = strrchr(sourcename, '/'); 1334 if (base_name) 1335 base_name++; 1336 else 1337 base_name = sourcename; 1338 /* 1339 * Figure out the destination. First see if it exists and is 1340 * a directory. 1341 */ 1342 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir))) 1343 dest = base_name; 1344 else { 1345 /* 1346 * OK, it doesn't exist. See if it is 1347 * '<dir>/basename' or 'basename' 1348 */ 1349 cp = strrchr(destname, '/'); 1350 if (cp) { 1351 *cp = 0; 1352 dir = string_to_inode(destname); 1353 if (!dir) 1354 return; 1355 dest = cp+1; 1356 } else { 1357 dir = cwd; 1358 dest = destname; 1359 } 1360 } 1361 1362 if (debugfs_read_inode(ino, &inode, sourcename)) 1363 return; 1364 1365 retval = ext2fs_link(current_fs, dir, dest, ino, 1366 ext2_file_type(inode.i_mode)); 1367 if (retval) 1368 com_err("make_link", retval, 0); 1369 return; 1370} 1371 1372 1373void do_link(int argc, char *argv[]) 1374{ 1375 if (common_args_process(argc, argv, 3, 3, "link", 1376 "<source file> <dest_name>", CHECK_FS_RW)) 1377 return; 1378 1379 make_link(argv[1], argv[2]); 1380} 1381 1382static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 1383 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1384 blk64_t ref_block EXT2FS_ATTR((unused)), 1385 int ref_offset EXT2FS_ATTR((unused)), 1386 void *private EXT2FS_ATTR((unused))) 1387{ 1388 blk64_t block; 1389 1390 block = *blocknr; 1391 ext2fs_block_alloc_stats2(fs, block, +1); 1392 return 0; 1393} 1394 1395void do_undel(int argc, char *argv[]) 1396{ 1397 ext2_ino_t ino; 1398 struct ext2_inode inode; 1399 1400 if (common_args_process(argc, argv, 2, 3, "undelete", 1401 "<inode_num> [dest_name]", 1402 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1403 return; 1404 1405 ino = string_to_inode(argv[1]); 1406 if (!ino) 1407 return; 1408 1409 if (debugfs_read_inode(ino, &inode, argv[1])) 1410 return; 1411 1412 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) { 1413 com_err(argv[1], 0, "Inode is not marked as deleted"); 1414 return; 1415 } 1416 1417 /* 1418 * XXX this function doesn't handle changing the links count on the 1419 * parent directory when undeleting a directory. 1420 */ 1421 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1; 1422 inode.i_dtime = 0; 1423 1424 if (debugfs_write_inode(ino, &inode, argv[0])) 1425 return; 1426 1427 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL, 1428 mark_blocks_proc, NULL); 1429 1430 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0); 1431 1432 if (argc > 2) 1433 make_link(argv[1], argv[2]); 1434} 1435 1436static void unlink_file_by_name(char *filename) 1437{ 1438 int retval; 1439 ext2_ino_t dir; 1440 char *base_name; 1441 1442 base_name = strrchr(filename, '/'); 1443 if (base_name) { 1444 *base_name++ = '\0'; 1445 dir = string_to_inode(filename); 1446 if (!dir) 1447 return; 1448 } else { 1449 dir = cwd; 1450 base_name = filename; 1451 } 1452 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0); 1453 if (retval) 1454 com_err("unlink_file_by_name", retval, 0); 1455 return; 1456} 1457 1458void do_unlink(int argc, char *argv[]) 1459{ 1460 if (common_args_process(argc, argv, 2, 2, "link", 1461 "<pathname>", CHECK_FS_RW)) 1462 return; 1463 1464 unlink_file_by_name(argv[1]); 1465} 1466#endif /* READ_ONLY */ 1467 1468void do_find_free_block(int argc, char *argv[]) 1469{ 1470 blk64_t free_blk, goal, first_free = 0; 1471 int count; 1472 errcode_t retval; 1473 char *tmp; 1474 1475 if ((argc > 3) || (argc==2 && *argv[1] == '?')) { 1476 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]"); 1477 return; 1478 } 1479 if (check_fs_open(argv[0])) 1480 return; 1481 1482 if (argc > 1) { 1483 count = strtol(argv[1],&tmp,0); 1484 if (*tmp) { 1485 com_err(argv[0], 0, "Bad count - %s", argv[1]); 1486 return; 1487 } 1488 } else 1489 count = 1; 1490 1491 if (argc > 2) { 1492 goal = strtol(argv[2], &tmp, 0); 1493 if (*tmp) { 1494 com_err(argv[0], 0, "Bad goal - %s", argv[1]); 1495 return; 1496 } 1497 } 1498 else 1499 goal = current_fs->super->s_first_data_block; 1500 1501 printf("Free blocks found: "); 1502 free_blk = goal - 1; 1503 while (count-- > 0) { 1504 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0, 1505 &free_blk); 1506 if (first_free) { 1507 if (first_free == free_blk) 1508 break; 1509 } else 1510 first_free = free_blk; 1511 if (retval) { 1512 com_err("ext2fs_new_block", retval, 0); 1513 return; 1514 } else 1515 printf("%llu ", free_blk); 1516 } 1517 printf("\n"); 1518} 1519 1520void do_find_free_inode(int argc, char *argv[]) 1521{ 1522 ext2_ino_t free_inode, dir; 1523 int mode; 1524 int retval; 1525 char *tmp; 1526 1527 if (argc > 3 || (argc>1 && *argv[1] == '?')) { 1528 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]"); 1529 return; 1530 } 1531 if (check_fs_open(argv[0])) 1532 return; 1533 1534 if (argc > 1) { 1535 dir = strtol(argv[1], &tmp, 0); 1536 if (*tmp) { 1537 com_err(argv[0], 0, "Bad dir - %s", argv[1]); 1538 return; 1539 } 1540 } 1541 else 1542 dir = root; 1543 if (argc > 2) { 1544 mode = strtol(argv[2], &tmp, 0); 1545 if (*tmp) { 1546 com_err(argv[0], 0, "Bad mode - %s", argv[2]); 1547 return; 1548 } 1549 } else 1550 mode = 010755; 1551 1552 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode); 1553 if (retval) 1554 com_err("ext2fs_new_inode", retval, 0); 1555 else 1556 printf("Free inode found: %u\n", free_inode); 1557} 1558 1559#ifndef READ_ONLY 1560static errcode_t copy_file(int fd, ext2_ino_t newfile) 1561{ 1562 ext2_file_t e2_file; 1563 errcode_t retval; 1564 int got; 1565 unsigned int written; 1566 char buf[8192]; 1567 char *ptr; 1568 1569 retval = ext2fs_file_open(current_fs, newfile, 1570 EXT2_FILE_WRITE, &e2_file); 1571 if (retval) 1572 return retval; 1573 1574 while (1) { 1575 got = read(fd, buf, sizeof(buf)); 1576 if (got == 0) 1577 break; 1578 if (got < 0) { 1579 retval = errno; 1580 goto fail; 1581 } 1582 ptr = buf; 1583 while (got > 0) { 1584 retval = ext2fs_file_write(e2_file, ptr, 1585 got, &written); 1586 if (retval) 1587 goto fail; 1588 1589 got -= written; 1590 ptr += written; 1591 } 1592 } 1593 retval = ext2fs_file_close(e2_file); 1594 return retval; 1595 1596fail: 1597 (void) ext2fs_file_close(e2_file); 1598 return retval; 1599} 1600 1601 1602void do_write(int argc, char *argv[]) 1603{ 1604 int fd; 1605 struct stat statbuf; 1606 ext2_ino_t newfile; 1607 errcode_t retval; 1608 struct ext2_inode inode; 1609 1610 if (common_args_process(argc, argv, 3, 3, "write", 1611 "<native file> <new file>", CHECK_FS_RW)) 1612 return; 1613 1614 fd = open(argv[1], O_RDONLY); 1615 if (fd < 0) { 1616 com_err(argv[1], errno, 0); 1617 return; 1618 } 1619 if (fstat(fd, &statbuf) < 0) { 1620 com_err(argv[1], errno, 0); 1621 close(fd); 1622 return; 1623 } 1624 1625 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile); 1626 if (retval == 0) { 1627 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]); 1628 close(fd); 1629 return; 1630 } 1631 1632 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1633 if (retval) { 1634 com_err(argv[0], retval, 0); 1635 close(fd); 1636 return; 1637 } 1638 printf("Allocated inode: %u\n", newfile); 1639 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1640 EXT2_FT_REG_FILE); 1641 if (retval == EXT2_ET_DIR_NO_SPACE) { 1642 retval = ext2fs_expand_dir(current_fs, cwd); 1643 if (retval) { 1644 com_err(argv[0], retval, "while expanding directory"); 1645 close(fd); 1646 return; 1647 } 1648 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1649 EXT2_FT_REG_FILE); 1650 } 1651 if (retval) { 1652 com_err(argv[2], retval, 0); 1653 close(fd); 1654 return; 1655 } 1656 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1657 com_err(argv[0], 0, "Warning: inode already set"); 1658 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0); 1659 memset(&inode, 0, sizeof(inode)); 1660 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG; 1661 inode.i_atime = inode.i_ctime = inode.i_mtime = 1662 current_fs->now ? current_fs->now : time(0); 1663 inode.i_links_count = 1; 1664 inode.i_size = statbuf.st_size; 1665 if (current_fs->super->s_feature_incompat & 1666 EXT3_FEATURE_INCOMPAT_EXTENTS) 1667 inode.i_flags |= EXT4_EXTENTS_FL; 1668 if (debugfs_write_new_inode(newfile, &inode, argv[0])) { 1669 close(fd); 1670 return; 1671 } 1672 if (LINUX_S_ISREG(inode.i_mode)) { 1673 retval = copy_file(fd, newfile); 1674 if (retval) 1675 com_err("copy_file", retval, 0); 1676 } 1677 close(fd); 1678} 1679 1680void do_mknod(int argc, char *argv[]) 1681{ 1682 unsigned long mode, major, minor; 1683 ext2_ino_t newfile; 1684 errcode_t retval; 1685 struct ext2_inode inode; 1686 int filetype, nr; 1687 1688 if (check_fs_open(argv[0])) 1689 return; 1690 if (argc < 3 || argv[2][1]) { 1691 usage: 1692 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]"); 1693 return; 1694 } 1695 mode = minor = major = 0; 1696 switch (argv[2][0]) { 1697 case 'p': 1698 mode = LINUX_S_IFIFO; 1699 filetype = EXT2_FT_FIFO; 1700 nr = 3; 1701 break; 1702 case 'c': 1703 mode = LINUX_S_IFCHR; 1704 filetype = EXT2_FT_CHRDEV; 1705 nr = 5; 1706 break; 1707 case 'b': 1708 mode = LINUX_S_IFBLK; 1709 filetype = EXT2_FT_BLKDEV; 1710 nr = 5; 1711 break; 1712 default: 1713 filetype = 0; 1714 nr = 0; 1715 } 1716 if (nr == 5) { 1717 major = strtoul(argv[3], argv+3, 0); 1718 minor = strtoul(argv[4], argv+4, 0); 1719 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0]) 1720 nr = 0; 1721 } 1722 if (argc != nr) 1723 goto usage; 1724 if (check_fs_read_write(argv[0])) 1725 return; 1726 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1727 if (retval) { 1728 com_err(argv[0], retval, 0); 1729 return; 1730 } 1731 printf("Allocated inode: %u\n", newfile); 1732 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype); 1733 if (retval == EXT2_ET_DIR_NO_SPACE) { 1734 retval = ext2fs_expand_dir(current_fs, cwd); 1735 if (retval) { 1736 com_err(argv[0], retval, "while expanding directory"); 1737 return; 1738 } 1739 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, 1740 filetype); 1741 } 1742 if (retval) { 1743 com_err(argv[1], retval, 0); 1744 return; 1745 } 1746 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1747 com_err(argv[0], 0, "Warning: inode already set"); 1748 ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile); 1749 ext2fs_mark_ib_dirty(current_fs); 1750 memset(&inode, 0, sizeof(inode)); 1751 inode.i_mode = mode; 1752 inode.i_atime = inode.i_ctime = inode.i_mtime = 1753 current_fs->now ? current_fs->now : time(0); 1754 if ((major < 256) && (minor < 256)) { 1755 inode.i_block[0] = major*256+minor; 1756 inode.i_block[1] = 0; 1757 } else { 1758 inode.i_block[0] = 0; 1759 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); 1760 } 1761 inode.i_links_count = 1; 1762 if (debugfs_write_new_inode(newfile, &inode, argv[0])) 1763 return; 1764} 1765 1766void do_mkdir(int argc, char *argv[]) 1767{ 1768 char *cp; 1769 ext2_ino_t parent; 1770 char *name; 1771 errcode_t retval; 1772 1773 if (common_args_process(argc, argv, 2, 2, "mkdir", 1774 "<filename>", CHECK_FS_RW)) 1775 return; 1776 1777 cp = strrchr(argv[1], '/'); 1778 if (cp) { 1779 *cp = 0; 1780 parent = string_to_inode(argv[1]); 1781 if (!parent) { 1782 com_err(argv[1], ENOENT, 0); 1783 return; 1784 } 1785 name = cp+1; 1786 } else { 1787 parent = cwd; 1788 name = argv[1]; 1789 } 1790 1791try_again: 1792 retval = ext2fs_mkdir(current_fs, parent, 0, name); 1793 if (retval == EXT2_ET_DIR_NO_SPACE) { 1794 retval = ext2fs_expand_dir(current_fs, parent); 1795 if (retval) { 1796 com_err(argv[0], retval, "while expanding directory"); 1797 return; 1798 } 1799 goto try_again; 1800 } 1801 if (retval) { 1802 com_err("ext2fs_mkdir", retval, 0); 1803 return; 1804 } 1805 1806} 1807 1808static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 1809 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1810 blk64_t ref_block EXT2FS_ATTR((unused)), 1811 int ref_offset EXT2FS_ATTR((unused)), 1812 void *private EXT2FS_ATTR((unused))) 1813{ 1814 blk64_t block; 1815 1816 block = *blocknr; 1817 ext2fs_block_alloc_stats2(fs, block, -1); 1818 return 0; 1819} 1820 1821static void kill_file_by_inode(ext2_ino_t inode) 1822{ 1823 struct ext2_inode inode_buf; 1824 1825 if (debugfs_read_inode(inode, &inode_buf, 0)) 1826 return; 1827 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0); 1828 if (debugfs_write_inode(inode, &inode_buf, 0)) 1829 return; 1830 if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) 1831 return; 1832 1833 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 1834 release_blocks_proc, NULL); 1835 printf("\n"); 1836 ext2fs_inode_alloc_stats2(current_fs, inode, -1, 1837 LINUX_S_ISDIR(inode_buf.i_mode)); 1838} 1839 1840 1841void do_kill_file(int argc, char *argv[]) 1842{ 1843 ext2_ino_t inode_num; 1844 1845 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1846 return; 1847 1848 kill_file_by_inode(inode_num); 1849} 1850 1851void do_rm(int argc, char *argv[]) 1852{ 1853 int retval; 1854 ext2_ino_t inode_num; 1855 struct ext2_inode inode; 1856 1857 if (common_args_process(argc, argv, 2, 2, "rm", 1858 "<filename>", CHECK_FS_RW)) 1859 return; 1860 1861 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1862 if (retval) { 1863 com_err(argv[0], retval, "while trying to resolve filename"); 1864 return; 1865 } 1866 1867 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1868 return; 1869 1870 if (LINUX_S_ISDIR(inode.i_mode)) { 1871 com_err(argv[0], 0, "file is a directory"); 1872 return; 1873 } 1874 1875 --inode.i_links_count; 1876 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1877 return; 1878 1879 unlink_file_by_name(argv[1]); 1880 if (inode.i_links_count == 0) 1881 kill_file_by_inode(inode_num); 1882} 1883 1884struct rd_struct { 1885 ext2_ino_t parent; 1886 int empty; 1887}; 1888 1889static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)), 1890 int entry EXT2FS_ATTR((unused)), 1891 struct ext2_dir_entry *dirent, 1892 int offset EXT2FS_ATTR((unused)), 1893 int blocksize EXT2FS_ATTR((unused)), 1894 char *buf EXT2FS_ATTR((unused)), 1895 void *private) 1896{ 1897 struct rd_struct *rds = (struct rd_struct *) private; 1898 1899 if (dirent->inode == 0) 1900 return 0; 1901 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.')) 1902 return 0; 1903 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') && 1904 (dirent->name[1] == '.')) { 1905 rds->parent = dirent->inode; 1906 return 0; 1907 } 1908 rds->empty = 0; 1909 return 0; 1910} 1911 1912void do_rmdir(int argc, char *argv[]) 1913{ 1914 int retval; 1915 ext2_ino_t inode_num; 1916 struct ext2_inode inode; 1917 struct rd_struct rds; 1918 1919 if (common_args_process(argc, argv, 2, 2, "rmdir", 1920 "<filename>", CHECK_FS_RW)) 1921 return; 1922 1923 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1924 if (retval) { 1925 com_err(argv[0], retval, "while trying to resolve filename"); 1926 return; 1927 } 1928 1929 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1930 return; 1931 1932 if (!LINUX_S_ISDIR(inode.i_mode)) { 1933 com_err(argv[0], 0, "file is not a directory"); 1934 return; 1935 } 1936 1937 rds.parent = 0; 1938 rds.empty = 1; 1939 1940 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0, 1941 0, rmdir_proc, &rds); 1942 if (retval) { 1943 com_err(argv[0], retval, "while iterating over directory"); 1944 return; 1945 } 1946 if (rds.empty == 0) { 1947 com_err(argv[0], 0, "directory not empty"); 1948 return; 1949 } 1950 1951 inode.i_links_count = 0; 1952 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1953 return; 1954 1955 unlink_file_by_name(argv[1]); 1956 kill_file_by_inode(inode_num); 1957 1958 if (rds.parent) { 1959 if (debugfs_read_inode(rds.parent, &inode, argv[0])) 1960 return; 1961 if (inode.i_links_count > 1) 1962 inode.i_links_count--; 1963 if (debugfs_write_inode(rds.parent, &inode, argv[0])) 1964 return; 1965 } 1966} 1967#endif /* READ_ONLY */ 1968 1969void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)), 1970 char *argv[] EXT2FS_ATTR((unused))) 1971{ 1972 FILE *out = stdout; 1973 1974 if (current_fs) 1975 fprintf(out, "Open mode: read-%s\n", 1976 current_fs->flags & EXT2_FLAG_RW ? "write" : "only"); 1977 fprintf(out, "Filesystem in use: %s\n", 1978 current_fs ? current_fs->device_name : "--none--"); 1979} 1980 1981#ifndef READ_ONLY 1982void do_expand_dir(int argc, char *argv[]) 1983{ 1984 ext2_ino_t inode; 1985 int retval; 1986 1987 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 1988 return; 1989 1990 retval = ext2fs_expand_dir(current_fs, inode); 1991 if (retval) 1992 com_err("ext2fs_expand_dir", retval, 0); 1993 return; 1994} 1995 1996void do_features(int argc, char *argv[]) 1997{ 1998 int i; 1999 2000 if (check_fs_open(argv[0])) 2001 return; 2002 2003 if ((argc != 1) && check_fs_read_write(argv[0])) 2004 return; 2005 for (i=1; i < argc; i++) { 2006 if (e2p_edit_feature(argv[i], 2007 ¤t_fs->super->s_feature_compat, 0)) 2008 com_err(argv[0], 0, "Unknown feature: %s\n", 2009 argv[i]); 2010 else 2011 ext2fs_mark_super_dirty(current_fs); 2012 } 2013 print_features(current_fs->super, stdout); 2014} 2015#endif /* READ_ONLY */ 2016 2017void do_bmap(int argc, char *argv[]) 2018{ 2019 ext2_ino_t ino; 2020 blk64_t blk, pblk; 2021 int err; 2022 errcode_t errcode; 2023 2024 if (common_args_process(argc, argv, 3, 3, argv[0], 2025 "<file> logical_blk", 0)) 2026 return; 2027 2028 ino = string_to_inode(argv[1]); 2029 if (!ino) 2030 return; 2031 blk = parse_ulong(argv[2], argv[0], "logical_block", &err); 2032 2033 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk); 2034 if (errcode) { 2035 com_err("argv[0]", errcode, 2036 "while mapping logical block %llu\n", blk); 2037 return; 2038 } 2039 printf("%llu\n", pblk); 2040} 2041 2042void do_imap(int argc, char *argv[]) 2043{ 2044 ext2_ino_t ino; 2045 unsigned long group, block, block_nr, offset; 2046 2047 if (common_args_process(argc, argv, 2, 2, argv[0], 2048 "<file>", 0)) 2049 return; 2050 ino = string_to_inode(argv[1]); 2051 if (!ino) 2052 return; 2053 2054 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super); 2055 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) * 2056 EXT2_INODE_SIZE(current_fs->super); 2057 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super); 2058 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) { 2059 com_err(argv[0], 0, "Inode table for group %lu is missing\n", 2060 group); 2061 return; 2062 } 2063 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) + 2064 block; 2065 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1); 2066 2067 printf("Inode %d is part of block group %lu\n" 2068 "\tlocated at block %lu, offset 0x%04lx\n", ino, group, 2069 block_nr, offset); 2070 2071} 2072 2073#ifndef READ_ONLY 2074void do_set_current_time(int argc, char *argv[]) 2075{ 2076 time_t now; 2077 2078 if (common_args_process(argc, argv, 2, 2, argv[0], 2079 "<time>", 0)) 2080 return; 2081 2082 now = string_to_time(argv[1]); 2083 if (now == ((time_t) -1)) { 2084 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n", 2085 argv[1]); 2086 return; 2087 2088 } else { 2089 printf("Setting current time to %s\n", time_to_string(now)); 2090 current_fs->now = now; 2091 } 2092} 2093#endif /* READ_ONLY */ 2094 2095static int find_supp_feature(__u32 *supp, int feature_type, char *name) 2096{ 2097 int compat, bit, ret; 2098 unsigned int feature_mask; 2099 2100 if (name) { 2101 if (feature_type == E2P_FS_FEATURE) 2102 ret = e2p_string2feature(name, &compat, &feature_mask); 2103 else 2104 ret = e2p_jrnl_string2feature(name, &compat, 2105 &feature_mask); 2106 if (ret) 2107 return ret; 2108 2109 if (!(supp[compat] & feature_mask)) 2110 return 1; 2111 } else { 2112 for (compat = 0; compat < 3; compat++) { 2113 for (bit = 0, feature_mask = 1; bit < 32; 2114 bit++, feature_mask <<= 1) { 2115 if (supp[compat] & feature_mask) { 2116 if (feature_type == E2P_FS_FEATURE) 2117 fprintf(stdout, " %s", 2118 e2p_feature2string(compat, 2119 feature_mask)); 2120 else 2121 fprintf(stdout, " %s", 2122 e2p_jrnl_feature2string(compat, 2123 feature_mask)); 2124 } 2125 } 2126 } 2127 fprintf(stdout, "\n"); 2128 } 2129 2130 return 0; 2131} 2132 2133void do_supported_features(int argc, char *argv[]) 2134{ 2135 int ret; 2136 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP, 2137 EXT2_LIB_FEATURE_INCOMPAT_SUPP, 2138 EXT2_LIB_FEATURE_RO_COMPAT_SUPP }; 2139 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES, 2140 JFS_KNOWN_INCOMPAT_FEATURES, 2141 JFS_KNOWN_ROCOMPAT_FEATURES }; 2142 2143 if (argc > 1) { 2144 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]); 2145 if (ret) { 2146 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, 2147 argv[1]); 2148 } 2149 if (ret) 2150 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]); 2151 else 2152 fprintf(stdout, "Supported feature: %s\n", argv[1]); 2153 } else { 2154 fprintf(stdout, "Supported features:"); 2155 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL); 2156 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL); 2157 } 2158} 2159 2160#ifndef READ_ONLY 2161void do_punch(int argc, char *argv[]) 2162{ 2163 ext2_ino_t ino; 2164 blk64_t start, end; 2165 int err; 2166 errcode_t errcode; 2167 2168 if (common_args_process(argc, argv, 3, 4, argv[0], 2169 "<file> start_blk [end_blk]", 2170 CHECK_FS_RW | CHECK_FS_BITMAPS)) 2171 return; 2172 2173 ino = string_to_inode(argv[1]); 2174 if (!ino) 2175 return; 2176 start = parse_ulong(argv[2], argv[0], "logical_block", &err); 2177 if (argc == 4) 2178 end = parse_ulong(argv[3], argv[0], "logical_block", &err); 2179 else 2180 end = ~0; 2181 2182 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end); 2183 2184 if (errcode) { 2185 com_err(argv[0], errcode, 2186 "while truncating inode %u from %llu to %llu\n", ino, 2187 (unsigned long long) start, (unsigned long long) end); 2188 return; 2189 } 2190} 2191#endif /* READ_ONLY */ 2192 2193void do_dump_mmp(int argc, char *argv[]) 2194{ 2195 struct ext2_super_block *sb; 2196 struct mmp_struct *mmp_s; 2197 time_t t; 2198 errcode_t retval = 0; 2199 2200 if (check_fs_open(argv[0])) 2201 return; 2202 2203 sb = current_fs->super; 2204 if (sb->s_mmp_block <= sb->s_first_data_block || 2205 sb->s_mmp_block >= ext2fs_blocks_count(sb)) { 2206 com_err(argv[0], EXT2_ET_MMP_BAD_BLOCK, "while dumping it.\n"); 2207 return; 2208 } 2209 2210 if (current_fs->mmp_buf == NULL) { 2211 retval = ext2fs_get_mem(current_fs->blocksize, 2212 ¤t_fs->mmp_buf); 2213 if (retval) { 2214 com_err(argv[0], retval, "allocating MMP buffer.\n"); 2215 return; 2216 } 2217 } 2218 2219 mmp_s = current_fs->mmp_buf; 2220 2221 retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block, 2222 current_fs->mmp_buf); 2223 if (retval) { 2224 com_err(argv[0], retval, "reading MMP block.\n"); 2225 return; 2226 } 2227 2228 t = mmp_s->mmp_time; 2229 fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block); 2230 fprintf(stdout, "update_interval: %d\n", 2231 current_fs->super->s_mmp_update_interval); 2232 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval); 2233 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq); 2234 fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t)); 2235 fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename); 2236 fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname); 2237 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic); 2238} 2239 2240static int source_file(const char *cmd_file, int sci_idx) 2241{ 2242 FILE *f; 2243 char buf[256]; 2244 char *cp; 2245 int exit_status = 0; 2246 int retval; 2247 2248 if (strcmp(cmd_file, "-") == 0) 2249 f = stdin; 2250 else { 2251 f = fopen(cmd_file, "r"); 2252 if (!f) { 2253 perror(cmd_file); 2254 exit(1); 2255 } 2256 } 2257 fflush(stdout); 2258 fflush(stderr); 2259 setbuf(stdout, NULL); 2260 setbuf(stderr, NULL); 2261 while (!feof(f)) { 2262 if (fgets(buf, sizeof(buf), f) == NULL) 2263 break; 2264 cp = strchr(buf, '\n'); 2265 if (cp) 2266 *cp = 0; 2267 cp = strchr(buf, '\r'); 2268 if (cp) 2269 *cp = 0; 2270 printf("debugfs: %s\n", buf); 2271 retval = ss_execute_line(sci_idx, buf); 2272 if (retval) { 2273 ss_perror(sci_idx, retval, buf); 2274 exit_status++; 2275 } 2276 } 2277 if (f != stdin) 2278 fclose(f); 2279 return exit_status; 2280} 2281 2282int main(int argc, char **argv) 2283{ 2284 int retval; 2285 int sci_idx; 2286 const char *usage = 2287 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] " 2288 "[-R request] [-V] [" 2289#ifndef READ_ONLY 2290 "[-w] " 2291#endif 2292 "[-c] device]"; 2293 int c; 2294 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 2295 char *request = 0; 2296 int exit_status = 0; 2297 char *cmd_file = 0; 2298 blk64_t superblock = 0; 2299 blk64_t blocksize = 0; 2300 int catastrophic = 0; 2301 char *data_filename = 0; 2302#ifdef READ_ONLY 2303 const char *opt_string = "icR:f:b:s:Vd:D"; 2304#else 2305 const char *opt_string = "iwcR:f:b:s:Vd:D"; 2306#endif 2307 2308 if (debug_prog_name == 0) 2309#ifdef READ_ONLY 2310 debug_prog_name = "rdebugfs"; 2311#else 2312 debug_prog_name = "debugfs"; 2313#endif 2314 add_error_table(&et_ext2_error_table); 2315 fprintf (stderr, "%s %s (%s)\n", debug_prog_name, 2316 E2FSPROGS_VERSION, E2FSPROGS_DATE); 2317 2318 while ((c = getopt (argc, argv, opt_string)) != EOF) { 2319 switch (c) { 2320 case 'R': 2321 request = optarg; 2322 break; 2323 case 'f': 2324 cmd_file = optarg; 2325 break; 2326 case 'd': 2327 data_filename = optarg; 2328 break; 2329 case 'i': 2330 open_flags |= EXT2_FLAG_IMAGE_FILE; 2331 break; 2332#ifndef READ_ONLY 2333 case 'w': 2334 open_flags |= EXT2_FLAG_RW; 2335 break; 2336#endif 2337 case 'D': 2338 open_flags |= EXT2_FLAG_DIRECT_IO; 2339 break; 2340 case 'b': 2341 blocksize = parse_ulong(optarg, argv[0], 2342 "block size", 0); 2343 break; 2344 case 's': 2345 superblock = parse_ulong(optarg, argv[0], 2346 "superblock number", 0); 2347 break; 2348 case 'c': 2349 catastrophic = 1; 2350 break; 2351 case 'V': 2352 /* Print version number and exit */ 2353 fprintf(stderr, "\tUsing %s\n", 2354 error_message(EXT2_ET_BASE)); 2355 exit(0); 2356 default: 2357 com_err(argv[0], 0, usage, debug_prog_name); 2358 return 1; 2359 } 2360 } 2361 if (optind < argc) 2362 open_filesystem(argv[optind], open_flags, 2363 superblock, blocksize, catastrophic, 2364 data_filename); 2365 2366 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL, 2367 &debug_cmds, &retval); 2368 if (retval) { 2369 ss_perror(sci_idx, retval, "creating invocation"); 2370 exit(1); 2371 } 2372 ss_get_readline(sci_idx); 2373 2374 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval); 2375 if (retval) { 2376 ss_perror(sci_idx, retval, "adding standard requests"); 2377 exit (1); 2378 } 2379 if (extra_cmds) 2380 ss_add_request_table (sci_idx, extra_cmds, 1, &retval); 2381 if (retval) { 2382 ss_perror(sci_idx, retval, "adding extra requests"); 2383 exit (1); 2384 } 2385 if (request) { 2386 retval = 0; 2387 retval = ss_execute_line(sci_idx, request); 2388 if (retval) { 2389 ss_perror(sci_idx, retval, request); 2390 exit_status++; 2391 } 2392 } else if (cmd_file) { 2393 exit_status = source_file(cmd_file, sci_idx); 2394 } else { 2395 ss_listen(sci_idx); 2396 } 2397 2398 ss_delete_invocation(sci_idx); 2399 2400 if (current_fs) 2401 close_filesystem(); 2402 2403 remove_error_table(&et_ext2_error_table); 2404 return exit_status; 2405} 2406