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 <stdio.h> 12#include <unistd.h> 13#include <stdlib.h> 14#include <ctype.h> 15#include <string.h> 16#include <time.h> 17#ifdef HAVE_GETOPT_H 18#include <getopt.h> 19#else 20extern int optind; 21extern char *optarg; 22#endif 23#ifdef HAVE_ERRNO_H 24#include <errno.h> 25#endif 26#include <fcntl.h> 27#include <sys/types.h> 28#include <sys/stat.h> 29 30#include "debugfs.h" 31#include "uuid/uuid.h" 32#include "e2p/e2p.h" 33 34#include <ext2fs/ext2_ext_attr.h> 35 36#include "../version.h" 37#include "jfs_user.h" 38 39#ifndef BUFSIZ 40#define BUFSIZ 8192 41#endif 42 43/* 64KiB is the minimium blksize to best minimize system call overhead. */ 44#ifndef IO_BUFSIZE 45#define IO_BUFSIZE 64*1024 46#endif 47 48/* Block size for `st_blocks' */ 49#ifndef S_BLKSIZE 50#define S_BLKSIZE 512 51#endif 52 53ss_request_table *extra_cmds; 54const char *debug_prog_name; 55int sci_idx; 56 57ext2_filsys current_fs = NULL; 58ext2_ino_t root, cwd; 59 60static void open_filesystem(char *device, int open_flags, blk64_t superblock, 61 blk64_t blocksize, int catastrophic, 62 char *data_filename) 63{ 64 int retval; 65 io_channel data_io = 0; 66 67 if (superblock != 0 && blocksize == 0) { 68 com_err(device, 0, "if you specify the superblock, you must also specify the block size"); 69 current_fs = NULL; 70 return; 71 } 72 73 if (data_filename) { 74 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) { 75 com_err(device, 0, 76 "The -d option is only valid when reading an e2image file"); 77 current_fs = NULL; 78 return; 79 } 80 retval = unix_io_manager->open(data_filename, 0, &data_io); 81 if (retval) { 82 com_err(data_filename, 0, "while opening data source"); 83 current_fs = NULL; 84 return; 85 } 86 } 87 88 if (catastrophic && (open_flags & EXT2_FLAG_RW)) { 89 com_err(device, 0, 90 "opening read-only because of catastrophic mode"); 91 open_flags &= ~EXT2_FLAG_RW; 92 } 93 if (catastrophic) 94 open_flags |= EXT2_FLAG_SKIP_MMP; 95 96 retval = ext2fs_open(device, open_flags, superblock, blocksize, 97 unix_io_manager, ¤t_fs); 98 if (retval) { 99 com_err(device, retval, "while opening filesystem"); 100 current_fs = NULL; 101 return; 102 } 103 current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; 104 105 if (catastrophic) 106 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps"); 107 else { 108 retval = ext2fs_read_inode_bitmap(current_fs); 109 if (retval) { 110 com_err(device, retval, "while reading inode bitmap"); 111 goto errout; 112 } 113 retval = ext2fs_read_block_bitmap(current_fs); 114 if (retval) { 115 com_err(device, retval, "while reading block bitmap"); 116 goto errout; 117 } 118 } 119 120 if (data_io) { 121 retval = ext2fs_set_data_io(current_fs, data_io); 122 if (retval) { 123 com_err(device, retval, 124 "while setting data source"); 125 goto errout; 126 } 127 } 128 129 root = cwd = EXT2_ROOT_INO; 130 return; 131 132errout: 133 retval = ext2fs_close(current_fs); 134 if (retval) 135 com_err(device, retval, "while trying to close filesystem"); 136 current_fs = NULL; 137} 138 139void do_open_filesys(int argc, char **argv) 140{ 141 int c, err; 142 int catastrophic = 0; 143 blk64_t superblock = 0; 144 blk64_t blocksize = 0; 145 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 146 char *data_filename = 0; 147 148 reset_getopt(); 149 while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) { 150 switch (c) { 151 case 'i': 152 open_flags |= EXT2_FLAG_IMAGE_FILE; 153 break; 154 case 'w': 155#ifdef READ_ONLY 156 goto print_usage; 157#else 158 open_flags |= EXT2_FLAG_RW; 159#endif /* READ_ONLY */ 160 break; 161 case 'f': 162 open_flags |= EXT2_FLAG_FORCE; 163 break; 164 case 'e': 165 open_flags |= EXT2_FLAG_EXCLUSIVE; 166 break; 167 case 'c': 168 catastrophic = 1; 169 break; 170 case 'd': 171 data_filename = optarg; 172 break; 173 case 'D': 174 open_flags |= EXT2_FLAG_DIRECT_IO; 175 break; 176 case 'b': 177 blocksize = parse_ulong(optarg, argv[0], 178 "block size", &err); 179 if (err) 180 return; 181 break; 182 case 's': 183 err = strtoblk(argv[0], optarg, &superblock); 184 if (err) 185 return; 186 break; 187 default: 188 goto print_usage; 189 } 190 } 191 if (optind != argc-1) { 192 goto print_usage; 193 } 194 if (check_fs_not_open(argv[0])) 195 return; 196 open_filesystem(argv[optind], open_flags, 197 superblock, blocksize, catastrophic, 198 data_filename); 199 return; 200 201print_usage: 202 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] " 203 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] " 204#ifndef READ_ONLY 205 "[-w] " 206#endif 207 "<device>\n", argv[0]); 208} 209 210void do_lcd(int argc, char **argv) 211{ 212 if (argc != 2) { 213 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>"); 214 return; 215 } 216 217 if (chdir(argv[1]) == -1) { 218 com_err(argv[0], errno, 219 "while trying to change native directory to %s", 220 argv[1]); 221 return; 222 } 223} 224 225static void close_filesystem(NOARGS) 226{ 227 int retval; 228 229 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) { 230 retval = ext2fs_write_inode_bitmap(current_fs); 231 if (retval) 232 com_err("ext2fs_write_inode_bitmap", retval, 0); 233 } 234 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) { 235 retval = ext2fs_write_block_bitmap(current_fs); 236 if (retval) 237 com_err("ext2fs_write_block_bitmap", retval, 0); 238 } 239 retval = ext2fs_close(current_fs); 240 if (retval) 241 com_err("ext2fs_close", retval, 0); 242 current_fs = NULL; 243 return; 244} 245 246void do_close_filesys(int argc, char **argv) 247{ 248 int c; 249 250 if (check_fs_open(argv[0])) 251 return; 252 253 reset_getopt(); 254 while ((c = getopt (argc, argv, "a")) != EOF) { 255 switch (c) { 256 case 'a': 257 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 258 break; 259 default: 260 goto print_usage; 261 } 262 } 263 264 if (argc > optind) { 265 print_usage: 266 com_err(0, 0, "Usage: close_filesys [-a]"); 267 return; 268 } 269 270 close_filesystem(); 271} 272 273#ifndef READ_ONLY 274void do_init_filesys(int argc, char **argv) 275{ 276 struct ext2_super_block param; 277 errcode_t retval; 278 int err; 279 blk64_t blocks; 280 281 if (common_args_process(argc, argv, 3, 3, "initialize", 282 "<device> <blocks>", CHECK_FS_NOTOPEN)) 283 return; 284 285 memset(¶m, 0, sizeof(struct ext2_super_block)); 286 err = strtoblk(argv[0], argv[2], &blocks); 287 if (err) 288 return; 289 ext2fs_blocks_count_set(¶m, blocks); 290 if (err) 291 return; 292 retval = ext2fs_initialize(argv[1], 0, ¶m, 293 unix_io_manager, ¤t_fs); 294 if (retval) { 295 com_err(argv[1], retval, "while initializing filesystem"); 296 current_fs = NULL; 297 return; 298 } 299 root = cwd = EXT2_ROOT_INO; 300 return; 301} 302 303static void print_features(struct ext2_super_block * s, FILE *f) 304{ 305 int i, j, printed=0; 306 __u32 *mask = &s->s_feature_compat, m; 307 308 fputs("Filesystem features:", f); 309 for (i=0; i <3; i++,mask++) { 310 for (j=0,m=1; j < 32; j++, m<<=1) { 311 if (*mask & m) { 312 fprintf(f, " %s", e2p_feature2string(i, m)); 313 printed++; 314 } 315 } 316 } 317 if (printed == 0) 318 fputs("(none)", f); 319 fputs("\n", f); 320} 321#endif /* READ_ONLY */ 322 323static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask, 324 const char *str, int *first, FILE *f) 325{ 326 if (ext2fs_bg_flags_test(fs, group, mask)) { 327 if (*first) { 328 fputs(" [", f); 329 *first = 0; 330 } else 331 fputs(", ", f); 332 fputs(str, f); 333 } 334} 335 336void do_show_super_stats(int argc, char *argv[]) 337{ 338 const char *units ="block"; 339 dgrp_t i; 340 FILE *out; 341 int c, header_only = 0; 342 int numdirs = 0, first, gdt_csum; 343 344 reset_getopt(); 345 while ((c = getopt (argc, argv, "h")) != EOF) { 346 switch (c) { 347 case 'h': 348 header_only++; 349 break; 350 default: 351 goto print_usage; 352 } 353 } 354 if (optind != argc) { 355 goto print_usage; 356 } 357 if (check_fs_open(argv[0])) 358 return; 359 out = open_pager(); 360 361 if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, 362 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 363 units = "cluster"; 364 365 list_super2(current_fs->super, out); 366 for (i=0; i < current_fs->group_desc_count; i++) 367 numdirs += ext2fs_bg_used_dirs_count(current_fs, i); 368 fprintf(out, "Directories: %d\n", numdirs); 369 370 if (header_only) { 371 close_pager(out); 372 return; 373 } 374 375 gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, 376 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 377 for (i = 0; i < current_fs->group_desc_count; i++) { 378 fprintf(out, " Group %2d: block bitmap at %llu, " 379 "inode bitmap at %llu, " 380 "inode table at %llu\n" 381 " %u free %s%s, " 382 "%u free %s, " 383 "%u used %s%s", 384 i, ext2fs_block_bitmap_loc(current_fs, i), 385 ext2fs_inode_bitmap_loc(current_fs, i), 386 ext2fs_inode_table_loc(current_fs, i), 387 ext2fs_bg_free_blocks_count(current_fs, i), units, 388 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ? 389 "s" : "", 390 ext2fs_bg_free_inodes_count(current_fs, i), 391 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ? 392 "inodes" : "inode", 393 ext2fs_bg_used_dirs_count(current_fs, i), 394 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories" 395 : "directory", gdt_csum ? ", " : "\n"); 396 if (gdt_csum) 397 fprintf(out, "%u unused %s\n", 398 ext2fs_bg_itable_unused(current_fs, i), 399 ext2fs_bg_itable_unused(current_fs, i) != 1 ? 400 "inodes" : "inode"); 401 first = 1; 402 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init", 403 &first, out); 404 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init", 405 &first, out); 406 if (gdt_csum) { 407 fprintf(out, "%sChecksum 0x%04x", 408 first ? " [":", ", ext2fs_bg_checksum(current_fs, i)); 409 first = 0; 410 } 411 if (!first) 412 fputs("]\n", out); 413 } 414 close_pager(out); 415 return; 416print_usage: 417 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]); 418} 419 420#ifndef READ_ONLY 421void do_dirty_filesys(int argc EXT2FS_ATTR((unused)), 422 char **argv EXT2FS_ATTR((unused))) 423{ 424 if (check_fs_open(argv[0])) 425 return; 426 if (check_fs_read_write(argv[0])) 427 return; 428 429 if (argv[1] && !strcmp(argv[1], "-clean")) 430 current_fs->super->s_state |= EXT2_VALID_FS; 431 else 432 current_fs->super->s_state &= ~EXT2_VALID_FS; 433 ext2fs_mark_super_dirty(current_fs); 434} 435#endif /* READ_ONLY */ 436 437struct list_blocks_struct { 438 FILE *f; 439 e2_blkcnt_t total; 440 blk64_t first_block, last_block; 441 e2_blkcnt_t first_bcnt, last_bcnt; 442 e2_blkcnt_t first; 443}; 444 445static void finish_range(struct list_blocks_struct *lb) 446{ 447 if (lb->first_block == 0) 448 return; 449 if (lb->first) 450 lb->first = 0; 451 else 452 fprintf(lb->f, ", "); 453 if (lb->first_block == lb->last_block) 454 fprintf(lb->f, "(%lld):%llu", 455 (long long)lb->first_bcnt, lb->first_block); 456 else 457 fprintf(lb->f, "(%lld-%lld):%llu-%llu", 458 (long long)lb->first_bcnt, (long long)lb->last_bcnt, 459 lb->first_block, lb->last_block); 460 lb->first_block = 0; 461} 462 463static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 464 blk64_t *blocknr, e2_blkcnt_t blockcnt, 465 blk64_t ref_block EXT2FS_ATTR((unused)), 466 int ref_offset EXT2FS_ATTR((unused)), 467 void *private) 468{ 469 struct list_blocks_struct *lb = (struct list_blocks_struct *) private; 470 471 lb->total++; 472 if (blockcnt >= 0) { 473 /* 474 * See if we can add on to the existing range (if it exists) 475 */ 476 if (lb->first_block && 477 (lb->last_block+1 == *blocknr) && 478 (lb->last_bcnt+1 == blockcnt)) { 479 lb->last_block = *blocknr; 480 lb->last_bcnt = blockcnt; 481 return 0; 482 } 483 /* 484 * Start a new range. 485 */ 486 finish_range(lb); 487 lb->first_block = lb->last_block = *blocknr; 488 lb->first_bcnt = lb->last_bcnt = blockcnt; 489 return 0; 490 } 491 /* 492 * Not a normal block. Always force a new range. 493 */ 494 finish_range(lb); 495 if (lb->first) 496 lb->first = 0; 497 else 498 fprintf(lb->f, ", "); 499 if (blockcnt == -1) 500 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr); 501 else if (blockcnt == -2) 502 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr); 503 else if (blockcnt == -3) 504 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr); 505 return 0; 506} 507 508static void dump_xattr_string(FILE *out, const char *str, int len) 509{ 510 int printable = 0; 511 int i; 512 513 /* check: is string "printable enough?" */ 514 for (i = 0; i < len; i++) 515 if (isprint(str[i])) 516 printable++; 517 518 if (printable <= len*7/8) 519 printable = 0; 520 521 for (i = 0; i < len; i++) 522 if (printable) 523 fprintf(out, isprint(str[i]) ? "%c" : "\\%03o", 524 (unsigned char)str[i]); 525 else 526 fprintf(out, "%02x ", (unsigned char)str[i]); 527} 528 529static void internal_dump_inode_extra(FILE *out, 530 const char *prefix EXT2FS_ATTR((unused)), 531 ext2_ino_t inode_num EXT2FS_ATTR((unused)), 532 struct ext2_inode_large *inode) 533{ 534 struct ext2_ext_attr_entry *entry; 535 __u32 *magic; 536 char *start, *end; 537 unsigned int storage_size; 538 539 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize); 540 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) - 541 EXT2_GOOD_OLD_INODE_SIZE) { 542 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n", 543 inode->i_extra_isize); 544 return; 545 } 546 storage_size = EXT2_INODE_SIZE(current_fs->super) - 547 EXT2_GOOD_OLD_INODE_SIZE - 548 inode->i_extra_isize; 549 magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE + 550 inode->i_extra_isize); 551 if (*magic == EXT2_EXT_ATTR_MAGIC) { 552 fprintf(out, "Extended attributes stored in inode body: \n"); 553 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super); 554 start = (char *) magic + sizeof(__u32); 555 entry = (struct ext2_ext_attr_entry *) start; 556 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) { 557 struct ext2_ext_attr_entry *next = 558 EXT2_EXT_ATTR_NEXT(entry); 559 if (entry->e_value_size > storage_size || 560 (char *) next >= end) { 561 fprintf(out, "invalid EA entry in inode\n"); 562 return; 563 } 564 fprintf(out, " "); 565 dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry), 566 entry->e_name_len); 567 fprintf(out, " = \""); 568 dump_xattr_string(out, start + entry->e_value_offs, 569 entry->e_value_size); 570 fprintf(out, "\" (%u)\n", entry->e_value_size); 571 entry = next; 572 } 573 } 574} 575 576static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode) 577{ 578 struct list_blocks_struct lb; 579 580 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix); 581 lb.total = 0; 582 lb.first_block = 0; 583 lb.f = f; 584 lb.first = 1; 585 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 586 list_blocks_proc, (void *)&lb); 587 finish_range(&lb); 588 if (lb.total) 589 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total); 590 fprintf(f,"\n"); 591} 592 593static int int_log10(unsigned long long arg) 594{ 595 int l = 0; 596 597 arg = arg / 10; 598 while (arg) { 599 l++; 600 arg = arg / 10; 601 } 602 return l; 603} 604 605#define DUMP_LEAF_EXTENTS 0x01 606#define DUMP_NODE_EXTENTS 0x02 607#define DUMP_EXTENT_TABLE 0x04 608 609static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino, 610 int flags, int logical_width, int physical_width) 611{ 612 ext2_extent_handle_t handle; 613 struct ext2fs_extent extent; 614 struct ext2_extent_info info; 615 int op = EXT2_EXTENT_ROOT; 616 unsigned int printed = 0; 617 errcode_t errcode; 618 619 errcode = ext2fs_extent_open(current_fs, ino, &handle); 620 if (errcode) 621 return; 622 623 if (flags & DUMP_EXTENT_TABLE) 624 fprintf(f, "Level Entries %*s %*s Length Flags\n", 625 (logical_width*2)+3, "Logical", 626 (physical_width*2)+3, "Physical"); 627 else 628 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix); 629 630 while (1) { 631 errcode = ext2fs_extent_get(handle, op, &extent); 632 633 if (errcode) 634 break; 635 636 op = EXT2_EXTENT_NEXT; 637 638 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 639 continue; 640 641 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) { 642 if ((flags & DUMP_LEAF_EXTENTS) == 0) 643 continue; 644 } else { 645 if ((flags & DUMP_NODE_EXTENTS) == 0) 646 continue; 647 } 648 649 errcode = ext2fs_extent_get_info(handle, &info); 650 if (errcode) 651 continue; 652 653 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) { 654 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 655 continue; 656 657 if (flags & DUMP_EXTENT_TABLE) { 658 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 659 "%*llu%*s %6u\n", 660 info.curr_level, info.max_depth, 661 info.curr_entry, info.num_entries, 662 logical_width, 663 extent.e_lblk, 664 logical_width, 665 extent.e_lblk + (extent.e_len - 1), 666 physical_width, 667 extent.e_pblk, 668 physical_width+3, "", extent.e_len); 669 continue; 670 } 671 672 fprintf(f, "%s(ETB%d):%lld", 673 printed ? ", " : "", info.curr_level, 674 extent.e_pblk); 675 printed = 1; 676 continue; 677 } 678 679 if (flags & DUMP_EXTENT_TABLE) { 680 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 681 "%*llu - %*llu %6u %s\n", 682 info.curr_level, info.max_depth, 683 info.curr_entry, info.num_entries, 684 logical_width, 685 extent.e_lblk, 686 logical_width, 687 extent.e_lblk + (extent.e_len - 1), 688 physical_width, 689 extent.e_pblk, 690 physical_width, 691 extent.e_pblk + (extent.e_len - 1), 692 extent.e_len, 693 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 694 "Uninit" : ""); 695 continue; 696 } 697 698 if (extent.e_len == 0) 699 continue; 700 else if (extent.e_len == 1) 701 fprintf(f, 702 "%s(%lld%s):%lld", 703 printed ? ", " : "", 704 extent.e_lblk, 705 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 706 "[u]" : "", 707 extent.e_pblk); 708 else 709 fprintf(f, 710 "%s(%lld-%lld%s):%lld-%lld", 711 printed ? ", " : "", 712 extent.e_lblk, 713 extent.e_lblk + (extent.e_len - 1), 714 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 715 "[u]" : "", 716 extent.e_pblk, 717 extent.e_pblk + (extent.e_len - 1)); 718 printed = 1; 719 } 720 if (printed) 721 fprintf(f, "\n"); 722} 723 724void internal_dump_inode(FILE *out, const char *prefix, 725 ext2_ino_t inode_num, struct ext2_inode *inode, 726 int do_dump_blocks) 727{ 728 const char *i_type; 729 char frag, fsize; 730 int os = current_fs->super->s_creator_os; 731 struct ext2_inode_large *large_inode; 732 int is_large_inode = 0; 733 734 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 735 is_large_inode = 1; 736 large_inode = (struct ext2_inode_large *) inode; 737 738 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory"; 739 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular"; 740 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink"; 741 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special"; 742 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special"; 743 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO"; 744 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket"; 745 else i_type = "bad type"; 746 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type); 747 fprintf(out, "%sMode: %04o Flags: 0x%x\n", 748 prefix, inode->i_mode & 0777, inode->i_flags); 749 if (is_large_inode && large_inode->i_extra_isize >= 24) { 750 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n", 751 prefix, inode->i_generation, large_inode->i_version_hi, 752 inode->osd1.linux1.l_i_version); 753 } else { 754 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix, 755 inode->i_generation, inode->osd1.linux1.l_i_version); 756 } 757 fprintf(out, "%sUser: %5d Group: %5d Size: ", 758 prefix, inode_uid(*inode), inode_gid(*inode)); 759 if (LINUX_S_ISREG(inode->i_mode)) 760 fprintf(out, "%llu\n", EXT2_I_SIZE(inode)); 761 else 762 fprintf(out, "%d\n", inode->i_size); 763 if (os == EXT2_OS_HURD) 764 fprintf(out, 765 "%sFile ACL: %d Directory ACL: %d Translator: %d\n", 766 prefix, 767 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0, 768 inode->osd1.hurd1.h_i_translator); 769 else 770 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n", 771 prefix, 772 inode->i_file_acl | ((long long) 773 (inode->osd2.linux2.l_i_file_acl_high) << 32), 774 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0); 775 if (os == EXT2_OS_LINUX) 776 fprintf(out, "%sLinks: %d Blockcount: %llu\n", 777 prefix, inode->i_links_count, 778 (((unsigned long long) 779 inode->osd2.linux2.l_i_blocks_hi << 32)) + 780 inode->i_blocks); 781 else 782 fprintf(out, "%sLinks: %d Blockcount: %u\n", 783 prefix, inode->i_links_count, inode->i_blocks); 784 switch (os) { 785 case EXT2_OS_HURD: 786 frag = inode->osd2.hurd2.h_i_frag; 787 fsize = inode->osd2.hurd2.h_i_fsize; 788 break; 789 default: 790 frag = fsize = 0; 791 } 792 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n", 793 prefix, inode->i_faddr, frag, fsize); 794 if (is_large_inode && large_inode->i_extra_isize >= 24) { 795 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix, 796 inode->i_ctime, large_inode->i_ctime_extra, 797 time_to_string(inode->i_ctime)); 798 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix, 799 inode->i_atime, large_inode->i_atime_extra, 800 time_to_string(inode->i_atime)); 801 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix, 802 inode->i_mtime, large_inode->i_mtime_extra, 803 time_to_string(inode->i_mtime)); 804 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix, 805 large_inode->i_crtime, large_inode->i_crtime_extra, 806 time_to_string(large_inode->i_crtime)); 807 } else { 808 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime, 809 time_to_string(inode->i_ctime)); 810 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime, 811 time_to_string(inode->i_atime)); 812 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime, 813 time_to_string(inode->i_mtime)); 814 } 815 if (inode->i_dtime) 816 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime, 817 time_to_string(inode->i_dtime)); 818 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 819 internal_dump_inode_extra(out, prefix, inode_num, 820 (struct ext2_inode_large *) inode); 821 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0) 822 fprintf(out, "%sFast_link_dest: %.*s\n", prefix, 823 (int) inode->i_size, (char *)inode->i_block); 824 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) { 825 int major, minor; 826 const char *devnote; 827 828 if (inode->i_block[0]) { 829 major = (inode->i_block[0] >> 8) & 255; 830 minor = inode->i_block[0] & 255; 831 devnote = ""; 832 } else { 833 major = (inode->i_block[1] & 0xfff00) >> 8; 834 minor = ((inode->i_block[1] & 0xff) | 835 ((inode->i_block[1] >> 12) & 0xfff00)); 836 devnote = "(New-style) "; 837 } 838 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n", 839 devnote, major, minor, major, minor); 840 } else if (do_dump_blocks) { 841 if (inode->i_flags & EXT4_EXTENTS_FL) 842 dump_extents(out, prefix, inode_num, 843 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0); 844 else 845 dump_blocks(out, prefix, inode_num); 846 } 847} 848 849static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode) 850{ 851 FILE *out; 852 853 out = open_pager(); 854 internal_dump_inode(out, "", inode_num, inode, 1); 855 close_pager(out); 856} 857 858void do_stat(int argc, char *argv[]) 859{ 860 ext2_ino_t inode; 861 struct ext2_inode * inode_buf; 862 863 if (check_fs_open(argv[0])) 864 return; 865 866 inode_buf = (struct ext2_inode *) 867 malloc(EXT2_INODE_SIZE(current_fs->super)); 868 if (!inode_buf) { 869 fprintf(stderr, "do_stat: can't allocate buffer\n"); 870 return; 871 } 872 873 if (common_inode_args_process(argc, argv, &inode, 0)) { 874 free(inode_buf); 875 return; 876 } 877 878 if (debugfs_read_inode_full(inode, inode_buf, argv[0], 879 EXT2_INODE_SIZE(current_fs->super))) { 880 free(inode_buf); 881 return; 882 } 883 884 dump_inode(inode, inode_buf); 885 free(inode_buf); 886 return; 887} 888 889void do_dump_extents(int argc, char **argv) 890{ 891 struct ext2_inode inode; 892 ext2_ino_t ino; 893 FILE *out; 894 int c, flags = 0; 895 int logical_width; 896 int physical_width; 897 898 reset_getopt(); 899 while ((c = getopt(argc, argv, "nl")) != EOF) { 900 switch (c) { 901 case 'n': 902 flags |= DUMP_NODE_EXTENTS; 903 break; 904 case 'l': 905 flags |= DUMP_LEAF_EXTENTS; 906 break; 907 } 908 } 909 910 if (argc != optind + 1) { 911 com_err(0, 0, "Usage: dump_extents [-n] [-l] file"); 912 return; 913 } 914 915 if (flags == 0) 916 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS; 917 flags |= DUMP_EXTENT_TABLE; 918 919 if (check_fs_open(argv[0])) 920 return; 921 922 ino = string_to_inode(argv[optind]); 923 if (ino == 0) 924 return; 925 926 if (debugfs_read_inode(ino, &inode, argv[0])) 927 return; 928 929 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) { 930 fprintf(stderr, "%s: does not uses extent block maps\n", 931 argv[optind]); 932 return; 933 } 934 935 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/ 936 current_fs->blocksize) + 1; 937 if (logical_width < 5) 938 logical_width = 5; 939 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1; 940 if (physical_width < 5) 941 physical_width = 5; 942 943 out = open_pager(); 944 dump_extents(out, "", ino, flags, logical_width, physical_width); 945 close_pager(out); 946 return; 947} 948 949static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 950 blk64_t *blocknr, 951 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 952 blk64_t ref_block EXT2FS_ATTR((unused)), 953 int ref_offset EXT2FS_ATTR((unused)), 954 void *private EXT2FS_ATTR((unused))) 955{ 956 printf("%llu ", *blocknr); 957 return 0; 958} 959 960void do_blocks(int argc, char *argv[]) 961{ 962 ext2_ino_t inode; 963 964 if (check_fs_open(argv[0])) 965 return; 966 967 if (common_inode_args_process(argc, argv, &inode, 0)) { 968 return; 969 } 970 971 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 972 print_blocks_proc, NULL); 973 fputc('\n', stdout); 974 return; 975} 976 977void do_chroot(int argc, char *argv[]) 978{ 979 ext2_ino_t inode; 980 int retval; 981 982 if (common_inode_args_process(argc, argv, &inode, 0)) 983 return; 984 985 retval = ext2fs_check_directory(current_fs, inode); 986 if (retval) { 987 com_err(argv[1], retval, 0); 988 return; 989 } 990 root = inode; 991} 992 993#ifndef READ_ONLY 994void do_clri(int argc, char *argv[]) 995{ 996 ext2_ino_t inode; 997 struct ext2_inode inode_buf; 998 999 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 1000 return; 1001 1002 if (debugfs_read_inode(inode, &inode_buf, argv[0])) 1003 return; 1004 memset(&inode_buf, 0, sizeof(inode_buf)); 1005 if (debugfs_write_inode(inode, &inode_buf, argv[0])) 1006 return; 1007} 1008 1009void do_freei(int argc, char *argv[]) 1010{ 1011 unsigned int len = 1; 1012 int err = 0; 1013 ext2_ino_t inode; 1014 1015 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]", 1016 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1017 return; 1018 if (check_fs_read_write(argv[0])) 1019 return; 1020 1021 inode = string_to_inode(argv[1]); 1022 if (!inode) 1023 return; 1024 1025 if (argc == 3) { 1026 len = parse_ulong(argv[2], argv[0], "length", &err); 1027 if (err) 1028 return; 1029 } 1030 1031 if (len == 1 && 1032 !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1033 com_err(argv[0], 0, "Warning: inode already clear"); 1034 while (len-- > 0) 1035 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++); 1036 ext2fs_mark_ib_dirty(current_fs); 1037} 1038 1039void do_seti(int argc, char *argv[]) 1040{ 1041 unsigned int len = 1; 1042 int err = 0; 1043 ext2_ino_t inode; 1044 1045 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]", 1046 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1047 return; 1048 if (check_fs_read_write(argv[0])) 1049 return; 1050 1051 inode = string_to_inode(argv[1]); 1052 if (!inode) 1053 return; 1054 1055 if (argc == 3) { 1056 len = parse_ulong(argv[2], argv[0], "length", &err); 1057 if (err) 1058 return; 1059 } 1060 1061 if ((len == 1) && 1062 ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1063 com_err(argv[0], 0, "Warning: inode already set"); 1064 while (len-- > 0) 1065 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++); 1066 ext2fs_mark_ib_dirty(current_fs); 1067} 1068#endif /* READ_ONLY */ 1069 1070void do_testi(int argc, char *argv[]) 1071{ 1072 ext2_ino_t inode; 1073 1074 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS)) 1075 return; 1076 1077 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1078 printf("Inode %u is marked in use\n", inode); 1079 else 1080 printf("Inode %u is not in use\n", inode); 1081} 1082 1083#ifndef READ_ONLY 1084void do_freeb(int argc, char *argv[]) 1085{ 1086 blk64_t block; 1087 blk64_t count = 1; 1088 1089 if (common_block_args_process(argc, argv, &block, &count)) 1090 return; 1091 if (check_fs_read_write(argv[0])) 1092 return; 1093 while (count-- > 0) { 1094 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1095 com_err(argv[0], 0, "Warning: block %llu already clear", 1096 block); 1097 ext2fs_unmark_block_bitmap2(current_fs->block_map,block); 1098 block++; 1099 } 1100 ext2fs_mark_bb_dirty(current_fs); 1101} 1102 1103void do_setb(int argc, char *argv[]) 1104{ 1105 blk64_t block; 1106 blk64_t count = 1; 1107 1108 if (common_block_args_process(argc, argv, &block, &count)) 1109 return; 1110 if (check_fs_read_write(argv[0])) 1111 return; 1112 while (count-- > 0) { 1113 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1114 com_err(argv[0], 0, "Warning: block %llu already set", 1115 block); 1116 ext2fs_mark_block_bitmap2(current_fs->block_map,block); 1117 block++; 1118 } 1119 ext2fs_mark_bb_dirty(current_fs); 1120} 1121#endif /* READ_ONLY */ 1122 1123void do_testb(int argc, char *argv[]) 1124{ 1125 blk64_t block; 1126 blk64_t count = 1; 1127 1128 if (common_block_args_process(argc, argv, &block, &count)) 1129 return; 1130 while (count-- > 0) { 1131 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1132 printf("Block %llu marked in use\n", block); 1133 else 1134 printf("Block %llu not in use\n", block); 1135 block++; 1136 } 1137} 1138 1139#ifndef READ_ONLY 1140static void modify_u8(char *com, const char *prompt, 1141 const char *format, __u8 *val) 1142{ 1143 char buf[200]; 1144 unsigned long v; 1145 char *tmp; 1146 1147 sprintf(buf, format, *val); 1148 printf("%30s [%s] ", prompt, buf); 1149 if (!fgets(buf, sizeof(buf), stdin)) 1150 return; 1151 if (buf[strlen (buf) - 1] == '\n') 1152 buf[strlen (buf) - 1] = '\0'; 1153 if (!buf[0]) 1154 return; 1155 v = strtoul(buf, &tmp, 0); 1156 if (*tmp) 1157 com_err(com, 0, "Bad value - %s", buf); 1158 else 1159 *val = v; 1160} 1161 1162static void modify_u16(char *com, const char *prompt, 1163 const char *format, __u16 *val) 1164{ 1165 char buf[200]; 1166 unsigned long v; 1167 char *tmp; 1168 1169 sprintf(buf, format, *val); 1170 printf("%30s [%s] ", prompt, buf); 1171 if (!fgets(buf, sizeof(buf), stdin)) 1172 return; 1173 if (buf[strlen (buf) - 1] == '\n') 1174 buf[strlen (buf) - 1] = '\0'; 1175 if (!buf[0]) 1176 return; 1177 v = strtoul(buf, &tmp, 0); 1178 if (*tmp) 1179 com_err(com, 0, "Bad value - %s", buf); 1180 else 1181 *val = v; 1182} 1183 1184static void modify_u32(char *com, const char *prompt, 1185 const char *format, __u32 *val) 1186{ 1187 char buf[200]; 1188 unsigned long v; 1189 char *tmp; 1190 1191 sprintf(buf, format, *val); 1192 printf("%30s [%s] ", prompt, buf); 1193 if (!fgets(buf, sizeof(buf), stdin)) 1194 return; 1195 if (buf[strlen (buf) - 1] == '\n') 1196 buf[strlen (buf) - 1] = '\0'; 1197 if (!buf[0]) 1198 return; 1199 v = strtoul(buf, &tmp, 0); 1200 if (*tmp) 1201 com_err(com, 0, "Bad value - %s", buf); 1202 else 1203 *val = v; 1204} 1205 1206 1207void do_modify_inode(int argc, char *argv[]) 1208{ 1209 struct ext2_inode inode; 1210 ext2_ino_t inode_num; 1211 int i; 1212 unsigned char *frag, *fsize; 1213 char buf[80]; 1214 int os; 1215 const char *hex_format = "0x%x"; 1216 const char *octal_format = "0%o"; 1217 const char *decimal_format = "%d"; 1218 const char *unsignedlong_format = "%lu"; 1219 1220 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1221 return; 1222 1223 os = current_fs->super->s_creator_os; 1224 1225 if (debugfs_read_inode(inode_num, &inode, argv[1])) 1226 return; 1227 1228 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode); 1229 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid); 1230 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid); 1231 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size); 1232 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime); 1233 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime); 1234 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime); 1235 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime); 1236 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count); 1237 if (os == EXT2_OS_LINUX) 1238 modify_u16(argv[0], "Block count high", unsignedlong_format, 1239 &inode.osd2.linux2.l_i_blocks_hi); 1240 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks); 1241 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags); 1242 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation); 1243#if 0 1244 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1); 1245#endif 1246 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl); 1247 if (LINUX_S_ISDIR(inode.i_mode)) 1248 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl); 1249 else 1250 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high); 1251 1252 if (os == EXT2_OS_HURD) 1253 modify_u32(argv[0], "Translator Block", 1254 decimal_format, &inode.osd1.hurd1.h_i_translator); 1255 1256 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr); 1257 switch (os) { 1258 case EXT2_OS_HURD: 1259 frag = &inode.osd2.hurd2.h_i_frag; 1260 fsize = &inode.osd2.hurd2.h_i_fsize; 1261 break; 1262 default: 1263 frag = fsize = 0; 1264 } 1265 if (frag) 1266 modify_u8(argv[0], "Fragment number", decimal_format, frag); 1267 if (fsize) 1268 modify_u8(argv[0], "Fragment size", decimal_format, fsize); 1269 1270 for (i=0; i < EXT2_NDIR_BLOCKS; i++) { 1271 sprintf(buf, "Direct Block #%d", i); 1272 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]); 1273 } 1274 modify_u32(argv[0], "Indirect Block", decimal_format, 1275 &inode.i_block[EXT2_IND_BLOCK]); 1276 modify_u32(argv[0], "Double Indirect Block", decimal_format, 1277 &inode.i_block[EXT2_DIND_BLOCK]); 1278 modify_u32(argv[0], "Triple Indirect Block", decimal_format, 1279 &inode.i_block[EXT2_TIND_BLOCK]); 1280 if (debugfs_write_inode(inode_num, &inode, argv[1])) 1281 return; 1282} 1283#endif /* READ_ONLY */ 1284 1285void do_change_working_dir(int argc, char *argv[]) 1286{ 1287 ext2_ino_t inode; 1288 int retval; 1289 1290 if (common_inode_args_process(argc, argv, &inode, 0)) 1291 return; 1292 1293 retval = ext2fs_check_directory(current_fs, inode); 1294 if (retval) { 1295 com_err(argv[1], retval, 0); 1296 return; 1297 } 1298 cwd = inode; 1299 return; 1300} 1301 1302void do_print_working_directory(int argc, char *argv[]) 1303{ 1304 int retval; 1305 char *pathname = NULL; 1306 1307 if (common_args_process(argc, argv, 1, 1, 1308 "print_working_directory", "", 0)) 1309 return; 1310 1311 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname); 1312 if (retval) { 1313 com_err(argv[0], retval, 1314 "while trying to get pathname of cwd"); 1315 } 1316 printf("[pwd] INODE: %6u PATH: %s\n", 1317 cwd, pathname ? pathname : "NULL"); 1318 if (pathname) { 1319 free(pathname); 1320 pathname = NULL; 1321 } 1322 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname); 1323 if (retval) { 1324 com_err(argv[0], retval, 1325 "while trying to get pathname of root"); 1326 } 1327 printf("[root] INODE: %6u PATH: %s\n", 1328 root, pathname ? pathname : "NULL"); 1329 if (pathname) { 1330 free(pathname); 1331 pathname = NULL; 1332 } 1333 return; 1334} 1335 1336#ifndef READ_ONLY 1337static void make_link(char *sourcename, char *destname) 1338{ 1339 ext2_ino_t ino; 1340 struct ext2_inode inode; 1341 int retval; 1342 ext2_ino_t dir; 1343 char *dest, *cp, *base_name; 1344 1345 /* 1346 * Get the source inode 1347 */ 1348 ino = string_to_inode(sourcename); 1349 if (!ino) 1350 return; 1351 base_name = strrchr(sourcename, '/'); 1352 if (base_name) 1353 base_name++; 1354 else 1355 base_name = sourcename; 1356 /* 1357 * Figure out the destination. First see if it exists and is 1358 * a directory. 1359 */ 1360 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir))) 1361 dest = base_name; 1362 else { 1363 /* 1364 * OK, it doesn't exist. See if it is 1365 * '<dir>/basename' or 'basename' 1366 */ 1367 cp = strrchr(destname, '/'); 1368 if (cp) { 1369 *cp = 0; 1370 dir = string_to_inode(destname); 1371 if (!dir) 1372 return; 1373 dest = cp+1; 1374 } else { 1375 dir = cwd; 1376 dest = destname; 1377 } 1378 } 1379 1380 if (debugfs_read_inode(ino, &inode, sourcename)) 1381 return; 1382 1383 retval = ext2fs_link(current_fs, dir, dest, ino, 1384 ext2_file_type(inode.i_mode)); 1385 if (retval) 1386 com_err("make_link", retval, 0); 1387 return; 1388} 1389 1390 1391void do_link(int argc, char *argv[]) 1392{ 1393 if (common_args_process(argc, argv, 3, 3, "link", 1394 "<source file> <dest_name>", CHECK_FS_RW)) 1395 return; 1396 1397 make_link(argv[1], argv[2]); 1398} 1399 1400static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 1401 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1402 blk64_t ref_block EXT2FS_ATTR((unused)), 1403 int ref_offset EXT2FS_ATTR((unused)), 1404 void *private EXT2FS_ATTR((unused))) 1405{ 1406 blk64_t block; 1407 1408 block = *blocknr; 1409 ext2fs_block_alloc_stats2(fs, block, +1); 1410 return 0; 1411} 1412 1413void do_undel(int argc, char *argv[]) 1414{ 1415 ext2_ino_t ino; 1416 struct ext2_inode inode; 1417 1418 if (common_args_process(argc, argv, 2, 3, "undelete", 1419 "<inode_num> [dest_name]", 1420 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1421 return; 1422 1423 ino = string_to_inode(argv[1]); 1424 if (!ino) 1425 return; 1426 1427 if (debugfs_read_inode(ino, &inode, argv[1])) 1428 return; 1429 1430 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) { 1431 com_err(argv[1], 0, "Inode is not marked as deleted"); 1432 return; 1433 } 1434 1435 /* 1436 * XXX this function doesn't handle changing the links count on the 1437 * parent directory when undeleting a directory. 1438 */ 1439 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1; 1440 inode.i_dtime = 0; 1441 1442 if (debugfs_write_inode(ino, &inode, argv[0])) 1443 return; 1444 1445 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL, 1446 mark_blocks_proc, NULL); 1447 1448 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0); 1449 1450 if (argc > 2) 1451 make_link(argv[1], argv[2]); 1452} 1453 1454static void unlink_file_by_name(char *filename) 1455{ 1456 int retval; 1457 ext2_ino_t dir; 1458 char *base_name; 1459 1460 base_name = strrchr(filename, '/'); 1461 if (base_name) { 1462 *base_name++ = '\0'; 1463 dir = string_to_inode(filename); 1464 if (!dir) 1465 return; 1466 } else { 1467 dir = cwd; 1468 base_name = filename; 1469 } 1470 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0); 1471 if (retval) 1472 com_err("unlink_file_by_name", retval, 0); 1473 return; 1474} 1475 1476void do_unlink(int argc, char *argv[]) 1477{ 1478 if (common_args_process(argc, argv, 2, 2, "link", 1479 "<pathname>", CHECK_FS_RW)) 1480 return; 1481 1482 unlink_file_by_name(argv[1]); 1483} 1484#endif /* READ_ONLY */ 1485 1486void do_find_free_block(int argc, char *argv[]) 1487{ 1488 blk64_t free_blk, goal, first_free = 0; 1489 int count; 1490 errcode_t retval; 1491 char *tmp; 1492 1493 if ((argc > 3) || (argc==2 && *argv[1] == '?')) { 1494 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]"); 1495 return; 1496 } 1497 if (check_fs_open(argv[0])) 1498 return; 1499 1500 if (argc > 1) { 1501 count = strtol(argv[1],&tmp,0); 1502 if (*tmp) { 1503 com_err(argv[0], 0, "Bad count - %s", argv[1]); 1504 return; 1505 } 1506 } else 1507 count = 1; 1508 1509 if (argc > 2) { 1510 goal = strtol(argv[2], &tmp, 0); 1511 if (*tmp) { 1512 com_err(argv[0], 0, "Bad goal - %s", argv[1]); 1513 return; 1514 } 1515 } 1516 else 1517 goal = current_fs->super->s_first_data_block; 1518 1519 printf("Free blocks found: "); 1520 free_blk = goal - 1; 1521 while (count-- > 0) { 1522 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0, 1523 &free_blk); 1524 if (first_free) { 1525 if (first_free == free_blk) 1526 break; 1527 } else 1528 first_free = free_blk; 1529 if (retval) { 1530 com_err("ext2fs_new_block", retval, 0); 1531 return; 1532 } else 1533 printf("%llu ", free_blk); 1534 } 1535 printf("\n"); 1536} 1537 1538void do_find_free_inode(int argc, char *argv[]) 1539{ 1540 ext2_ino_t free_inode, dir; 1541 int mode; 1542 int retval; 1543 char *tmp; 1544 1545 if (argc > 3 || (argc>1 && *argv[1] == '?')) { 1546 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]"); 1547 return; 1548 } 1549 if (check_fs_open(argv[0])) 1550 return; 1551 1552 if (argc > 1) { 1553 dir = strtol(argv[1], &tmp, 0); 1554 if (*tmp) { 1555 com_err(argv[0], 0, "Bad dir - %s", argv[1]); 1556 return; 1557 } 1558 } 1559 else 1560 dir = root; 1561 if (argc > 2) { 1562 mode = strtol(argv[2], &tmp, 0); 1563 if (*tmp) { 1564 com_err(argv[0], 0, "Bad mode - %s", argv[2]); 1565 return; 1566 } 1567 } else 1568 mode = 010755; 1569 1570 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode); 1571 if (retval) 1572 com_err("ext2fs_new_inode", retval, 0); 1573 else 1574 printf("Free inode found: %u\n", free_inode); 1575} 1576 1577#ifndef READ_ONLY 1578static errcode_t copy_file(int fd, ext2_ino_t newfile, int bufsize, int make_holes) 1579{ 1580 ext2_file_t e2_file; 1581 errcode_t retval; 1582 int got; 1583 unsigned int written; 1584 char *buf; 1585 char *ptr; 1586 char *zero_buf; 1587 int cmp; 1588 1589 retval = ext2fs_file_open(current_fs, newfile, 1590 EXT2_FILE_WRITE, &e2_file); 1591 if (retval) 1592 return retval; 1593 1594 retval = ext2fs_get_mem(bufsize, &buf); 1595 if (retval) { 1596 com_err("copy_file", retval, "can't allocate buffer\n"); 1597 return retval; 1598 } 1599 1600 /* This is used for checking whether the whole block is zero */ 1601 retval = ext2fs_get_memzero(bufsize, &zero_buf); 1602 if (retval) { 1603 com_err("copy_file", retval, "can't allocate buffer\n"); 1604 ext2fs_free_mem(&buf); 1605 return retval; 1606 } 1607 1608 while (1) { 1609 got = read(fd, buf, bufsize); 1610 if (got == 0) 1611 break; 1612 if (got < 0) { 1613 retval = errno; 1614 goto fail; 1615 } 1616 ptr = buf; 1617 1618 /* Sparse copy */ 1619 if (make_holes) { 1620 /* Check whether all is zero */ 1621 cmp = memcmp(ptr, zero_buf, got); 1622 if (cmp == 0) { 1623 /* The whole block is zero, make a hole */ 1624 retval = ext2fs_file_lseek(e2_file, got, EXT2_SEEK_CUR, NULL); 1625 if (retval) 1626 goto fail; 1627 got = 0; 1628 } 1629 } 1630 1631 /* Normal copy */ 1632 while (got > 0) { 1633 retval = ext2fs_file_write(e2_file, ptr, 1634 got, &written); 1635 if (retval) 1636 goto fail; 1637 1638 got -= written; 1639 ptr += written; 1640 } 1641 } 1642 ext2fs_free_mem(&buf); 1643 ext2fs_free_mem(&zero_buf); 1644 retval = ext2fs_file_close(e2_file); 1645 return retval; 1646 1647fail: 1648 ext2fs_free_mem(&buf); 1649 ext2fs_free_mem(&zero_buf); 1650 (void) ext2fs_file_close(e2_file); 1651 return retval; 1652} 1653 1654 1655void do_write(int argc, char *argv[]) 1656{ 1657 int fd; 1658 struct stat statbuf; 1659 ext2_ino_t newfile; 1660 errcode_t retval; 1661 struct ext2_inode inode; 1662 int bufsize = IO_BUFSIZE; 1663 int make_holes = 0; 1664 1665 if (common_args_process(argc, argv, 3, 3, "write", 1666 "<native file> <new file>", CHECK_FS_RW)) 1667 return; 1668 1669 fd = open(argv[1], O_RDONLY); 1670 if (fd < 0) { 1671 com_err(argv[1], errno, 0); 1672 return; 1673 } 1674 if (fstat(fd, &statbuf) < 0) { 1675 com_err(argv[1], errno, 0); 1676 close(fd); 1677 return; 1678 } 1679 1680 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile); 1681 if (retval == 0) { 1682 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]); 1683 close(fd); 1684 return; 1685 } 1686 1687 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1688 if (retval) { 1689 com_err(argv[0], retval, 0); 1690 close(fd); 1691 return; 1692 } 1693 printf("Allocated inode: %u\n", newfile); 1694 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1695 EXT2_FT_REG_FILE); 1696 if (retval == EXT2_ET_DIR_NO_SPACE) { 1697 retval = ext2fs_expand_dir(current_fs, cwd); 1698 if (retval) { 1699 com_err(argv[0], retval, "while expanding directory"); 1700 close(fd); 1701 return; 1702 } 1703 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1704 EXT2_FT_REG_FILE); 1705 } 1706 if (retval) { 1707 com_err(argv[2], retval, 0); 1708 close(fd); 1709 return; 1710 } 1711 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1712 com_err(argv[0], 0, "Warning: inode already set"); 1713 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0); 1714 memset(&inode, 0, sizeof(inode)); 1715 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG; 1716 inode.i_atime = inode.i_ctime = inode.i_mtime = 1717 current_fs->now ? current_fs->now : time(0); 1718 inode.i_links_count = 1; 1719 inode.i_size = statbuf.st_size; 1720 if (current_fs->super->s_feature_incompat & 1721 EXT3_FEATURE_INCOMPAT_EXTENTS) { 1722 int i; 1723 struct ext3_extent_header *eh; 1724 1725 eh = (struct ext3_extent_header *) &inode.i_block[0]; 1726 eh->eh_depth = 0; 1727 eh->eh_entries = 0; 1728 eh->eh_magic = ext2fs_cpu_to_le16(EXT3_EXT_MAGIC); 1729 i = (sizeof(inode.i_block) - sizeof(*eh)) / 1730 sizeof(struct ext3_extent); 1731 eh->eh_max = ext2fs_cpu_to_le16(i); 1732 inode.i_flags |= EXT4_EXTENTS_FL; 1733 } 1734 if (debugfs_write_new_inode(newfile, &inode, argv[0])) { 1735 close(fd); 1736 return; 1737 } 1738 if (LINUX_S_ISREG(inode.i_mode)) { 1739 if (statbuf.st_blocks < statbuf.st_size / S_BLKSIZE) { 1740 make_holes = 1; 1741 /* 1742 * Use I/O blocksize as buffer size when 1743 * copying sparse files. 1744 */ 1745 bufsize = statbuf.st_blksize; 1746 } 1747 retval = copy_file(fd, newfile, bufsize, make_holes); 1748 if (retval) 1749 com_err("copy_file", retval, 0); 1750 } 1751 close(fd); 1752} 1753 1754void do_mknod(int argc, char *argv[]) 1755{ 1756 unsigned long mode, major, minor; 1757 ext2_ino_t newfile; 1758 errcode_t retval; 1759 struct ext2_inode inode; 1760 int filetype, nr; 1761 1762 if (check_fs_open(argv[0])) 1763 return; 1764 if (argc < 3 || argv[2][1]) { 1765 usage: 1766 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]"); 1767 return; 1768 } 1769 mode = minor = major = 0; 1770 switch (argv[2][0]) { 1771 case 'p': 1772 mode = LINUX_S_IFIFO; 1773 filetype = EXT2_FT_FIFO; 1774 nr = 3; 1775 break; 1776 case 'c': 1777 mode = LINUX_S_IFCHR; 1778 filetype = EXT2_FT_CHRDEV; 1779 nr = 5; 1780 break; 1781 case 'b': 1782 mode = LINUX_S_IFBLK; 1783 filetype = EXT2_FT_BLKDEV; 1784 nr = 5; 1785 break; 1786 default: 1787 filetype = 0; 1788 nr = 0; 1789 } 1790 if (nr == 5) { 1791 major = strtoul(argv[3], argv+3, 0); 1792 minor = strtoul(argv[4], argv+4, 0); 1793 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0]) 1794 nr = 0; 1795 } 1796 if (argc != nr) 1797 goto usage; 1798 if (check_fs_read_write(argv[0])) 1799 return; 1800 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1801 if (retval) { 1802 com_err(argv[0], retval, 0); 1803 return; 1804 } 1805 printf("Allocated inode: %u\n", newfile); 1806 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype); 1807 if (retval == EXT2_ET_DIR_NO_SPACE) { 1808 retval = ext2fs_expand_dir(current_fs, cwd); 1809 if (retval) { 1810 com_err(argv[0], retval, "while expanding directory"); 1811 return; 1812 } 1813 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, 1814 filetype); 1815 } 1816 if (retval) { 1817 com_err(argv[1], retval, 0); 1818 return; 1819 } 1820 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1821 com_err(argv[0], 0, "Warning: inode already set"); 1822 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0); 1823 memset(&inode, 0, sizeof(inode)); 1824 inode.i_mode = mode; 1825 inode.i_atime = inode.i_ctime = inode.i_mtime = 1826 current_fs->now ? current_fs->now : time(0); 1827 if ((major < 256) && (minor < 256)) { 1828 inode.i_block[0] = major*256+minor; 1829 inode.i_block[1] = 0; 1830 } else { 1831 inode.i_block[0] = 0; 1832 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); 1833 } 1834 inode.i_links_count = 1; 1835 if (debugfs_write_new_inode(newfile, &inode, argv[0])) 1836 return; 1837} 1838 1839void do_mkdir(int argc, char *argv[]) 1840{ 1841 char *cp; 1842 ext2_ino_t parent; 1843 char *name; 1844 errcode_t retval; 1845 1846 if (common_args_process(argc, argv, 2, 2, "mkdir", 1847 "<filename>", CHECK_FS_RW)) 1848 return; 1849 1850 cp = strrchr(argv[1], '/'); 1851 if (cp) { 1852 *cp = 0; 1853 parent = string_to_inode(argv[1]); 1854 if (!parent) { 1855 com_err(argv[1], ENOENT, 0); 1856 return; 1857 } 1858 name = cp+1; 1859 } else { 1860 parent = cwd; 1861 name = argv[1]; 1862 } 1863 1864try_again: 1865 retval = ext2fs_mkdir(current_fs, parent, 0, name); 1866 if (retval == EXT2_ET_DIR_NO_SPACE) { 1867 retval = ext2fs_expand_dir(current_fs, parent); 1868 if (retval) { 1869 com_err(argv[0], retval, "while expanding directory"); 1870 return; 1871 } 1872 goto try_again; 1873 } 1874 if (retval) { 1875 com_err("ext2fs_mkdir", retval, 0); 1876 return; 1877 } 1878 1879} 1880 1881static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 1882 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1883 blk64_t ref_block EXT2FS_ATTR((unused)), 1884 int ref_offset EXT2FS_ATTR((unused)), 1885 void *private EXT2FS_ATTR((unused))) 1886{ 1887 blk64_t block; 1888 1889 block = *blocknr; 1890 ext2fs_block_alloc_stats2(fs, block, -1); 1891 return 0; 1892} 1893 1894static void kill_file_by_inode(ext2_ino_t inode) 1895{ 1896 struct ext2_inode inode_buf; 1897 1898 if (debugfs_read_inode(inode, &inode_buf, 0)) 1899 return; 1900 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0); 1901 if (debugfs_write_inode(inode, &inode_buf, 0)) 1902 return; 1903 if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) 1904 return; 1905 1906 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 1907 release_blocks_proc, NULL); 1908 printf("\n"); 1909 ext2fs_inode_alloc_stats2(current_fs, inode, -1, 1910 LINUX_S_ISDIR(inode_buf.i_mode)); 1911} 1912 1913 1914void do_kill_file(int argc, char *argv[]) 1915{ 1916 ext2_ino_t inode_num; 1917 1918 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1919 return; 1920 1921 kill_file_by_inode(inode_num); 1922} 1923 1924void do_rm(int argc, char *argv[]) 1925{ 1926 int retval; 1927 ext2_ino_t inode_num; 1928 struct ext2_inode inode; 1929 1930 if (common_args_process(argc, argv, 2, 2, "rm", 1931 "<filename>", CHECK_FS_RW)) 1932 return; 1933 1934 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1935 if (retval) { 1936 com_err(argv[0], retval, "while trying to resolve filename"); 1937 return; 1938 } 1939 1940 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1941 return; 1942 1943 if (LINUX_S_ISDIR(inode.i_mode)) { 1944 com_err(argv[0], 0, "file is a directory"); 1945 return; 1946 } 1947 1948 --inode.i_links_count; 1949 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1950 return; 1951 1952 unlink_file_by_name(argv[1]); 1953 if (inode.i_links_count == 0) 1954 kill_file_by_inode(inode_num); 1955} 1956 1957struct rd_struct { 1958 ext2_ino_t parent; 1959 int empty; 1960}; 1961 1962static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)), 1963 int entry EXT2FS_ATTR((unused)), 1964 struct ext2_dir_entry *dirent, 1965 int offset EXT2FS_ATTR((unused)), 1966 int blocksize EXT2FS_ATTR((unused)), 1967 char *buf EXT2FS_ATTR((unused)), 1968 void *private) 1969{ 1970 struct rd_struct *rds = (struct rd_struct *) private; 1971 1972 if (dirent->inode == 0) 1973 return 0; 1974 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.')) 1975 return 0; 1976 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') && 1977 (dirent->name[1] == '.')) { 1978 rds->parent = dirent->inode; 1979 return 0; 1980 } 1981 rds->empty = 0; 1982 return 0; 1983} 1984 1985void do_rmdir(int argc, char *argv[]) 1986{ 1987 int retval; 1988 ext2_ino_t inode_num; 1989 struct ext2_inode inode; 1990 struct rd_struct rds; 1991 1992 if (common_args_process(argc, argv, 2, 2, "rmdir", 1993 "<filename>", CHECK_FS_RW)) 1994 return; 1995 1996 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1997 if (retval) { 1998 com_err(argv[0], retval, "while trying to resolve filename"); 1999 return; 2000 } 2001 2002 if (debugfs_read_inode(inode_num, &inode, argv[0])) 2003 return; 2004 2005 if (!LINUX_S_ISDIR(inode.i_mode)) { 2006 com_err(argv[0], 0, "file is not a directory"); 2007 return; 2008 } 2009 2010 rds.parent = 0; 2011 rds.empty = 1; 2012 2013 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0, 2014 0, rmdir_proc, &rds); 2015 if (retval) { 2016 com_err(argv[0], retval, "while iterating over directory"); 2017 return; 2018 } 2019 if (rds.empty == 0) { 2020 com_err(argv[0], 0, "directory not empty"); 2021 return; 2022 } 2023 2024 inode.i_links_count = 0; 2025 if (debugfs_write_inode(inode_num, &inode, argv[0])) 2026 return; 2027 2028 unlink_file_by_name(argv[1]); 2029 kill_file_by_inode(inode_num); 2030 2031 if (rds.parent) { 2032 if (debugfs_read_inode(rds.parent, &inode, argv[0])) 2033 return; 2034 if (inode.i_links_count > 1) 2035 inode.i_links_count--; 2036 if (debugfs_write_inode(rds.parent, &inode, argv[0])) 2037 return; 2038 } 2039} 2040#endif /* READ_ONLY */ 2041 2042void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)), 2043 char *argv[] EXT2FS_ATTR((unused))) 2044{ 2045 if (current_fs) 2046 printf("Open mode: read-%s\n", 2047 current_fs->flags & EXT2_FLAG_RW ? "write" : "only"); 2048 printf("Filesystem in use: %s\n", 2049 current_fs ? current_fs->device_name : "--none--"); 2050} 2051 2052#ifndef READ_ONLY 2053void do_expand_dir(int argc, char *argv[]) 2054{ 2055 ext2_ino_t inode; 2056 int retval; 2057 2058 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 2059 return; 2060 2061 retval = ext2fs_expand_dir(current_fs, inode); 2062 if (retval) 2063 com_err("ext2fs_expand_dir", retval, 0); 2064 return; 2065} 2066 2067void do_features(int argc, char *argv[]) 2068{ 2069 int i; 2070 2071 if (check_fs_open(argv[0])) 2072 return; 2073 2074 if ((argc != 1) && check_fs_read_write(argv[0])) 2075 return; 2076 for (i=1; i < argc; i++) { 2077 if (e2p_edit_feature(argv[i], 2078 ¤t_fs->super->s_feature_compat, 0)) 2079 com_err(argv[0], 0, "Unknown feature: %s\n", 2080 argv[i]); 2081 else 2082 ext2fs_mark_super_dirty(current_fs); 2083 } 2084 print_features(current_fs->super, stdout); 2085} 2086#endif /* READ_ONLY */ 2087 2088void do_bmap(int argc, char *argv[]) 2089{ 2090 ext2_ino_t ino; 2091 blk64_t blk, pblk; 2092 int err; 2093 errcode_t errcode; 2094 2095 if (common_args_process(argc, argv, 3, 3, argv[0], 2096 "<file> logical_blk", 0)) 2097 return; 2098 2099 ino = string_to_inode(argv[1]); 2100 if (!ino) 2101 return; 2102 err = strtoblk(argv[0], argv[2], &blk); 2103 if (err) 2104 return; 2105 2106 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk); 2107 if (errcode) { 2108 com_err(argv[0], errcode, 2109 "while mapping logical block %llu\n", blk); 2110 return; 2111 } 2112 printf("%llu\n", pblk); 2113} 2114 2115void do_imap(int argc, char *argv[]) 2116{ 2117 ext2_ino_t ino; 2118 unsigned long group, block, block_nr, offset; 2119 2120 if (common_args_process(argc, argv, 2, 2, argv[0], 2121 "<file>", 0)) 2122 return; 2123 ino = string_to_inode(argv[1]); 2124 if (!ino) 2125 return; 2126 2127 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super); 2128 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) * 2129 EXT2_INODE_SIZE(current_fs->super); 2130 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super); 2131 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) { 2132 com_err(argv[0], 0, "Inode table for group %lu is missing\n", 2133 group); 2134 return; 2135 } 2136 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) + 2137 block; 2138 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1); 2139 2140 printf("Inode %d is part of block group %lu\n" 2141 "\tlocated at block %lu, offset 0x%04lx\n", ino, group, 2142 block_nr, offset); 2143 2144} 2145 2146#ifndef READ_ONLY 2147void do_set_current_time(int argc, char *argv[]) 2148{ 2149 time_t now; 2150 2151 if (common_args_process(argc, argv, 2, 2, argv[0], 2152 "<time>", 0)) 2153 return; 2154 2155 now = string_to_time(argv[1]); 2156 if (now == ((time_t) -1)) { 2157 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n", 2158 argv[1]); 2159 return; 2160 2161 } else { 2162 printf("Setting current time to %s\n", time_to_string(now)); 2163 current_fs->now = now; 2164 } 2165} 2166#endif /* READ_ONLY */ 2167 2168static int find_supp_feature(__u32 *supp, int feature_type, char *name) 2169{ 2170 int compat, bit, ret; 2171 unsigned int feature_mask; 2172 2173 if (name) { 2174 if (feature_type == E2P_FS_FEATURE) 2175 ret = e2p_string2feature(name, &compat, &feature_mask); 2176 else 2177 ret = e2p_jrnl_string2feature(name, &compat, 2178 &feature_mask); 2179 if (ret) 2180 return ret; 2181 2182 if (!(supp[compat] & feature_mask)) 2183 return 1; 2184 } else { 2185 for (compat = 0; compat < 3; compat++) { 2186 for (bit = 0, feature_mask = 1; bit < 32; 2187 bit++, feature_mask <<= 1) { 2188 if (supp[compat] & feature_mask) { 2189 if (feature_type == E2P_FS_FEATURE) 2190 fprintf(stdout, " %s", 2191 e2p_feature2string(compat, 2192 feature_mask)); 2193 else 2194 fprintf(stdout, " %s", 2195 e2p_jrnl_feature2string(compat, 2196 feature_mask)); 2197 } 2198 } 2199 } 2200 fprintf(stdout, "\n"); 2201 } 2202 2203 return 0; 2204} 2205 2206void do_supported_features(int argc, char *argv[]) 2207{ 2208 int ret; 2209 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP, 2210 EXT2_LIB_FEATURE_INCOMPAT_SUPP, 2211 EXT2_LIB_FEATURE_RO_COMPAT_SUPP }; 2212 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES, 2213 JFS_KNOWN_INCOMPAT_FEATURES, 2214 JFS_KNOWN_ROCOMPAT_FEATURES }; 2215 2216 if (argc > 1) { 2217 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]); 2218 if (ret) { 2219 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, 2220 argv[1]); 2221 } 2222 if (ret) 2223 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]); 2224 else 2225 fprintf(stdout, "Supported feature: %s\n", argv[1]); 2226 } else { 2227 fprintf(stdout, "Supported features:"); 2228 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL); 2229 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL); 2230 } 2231} 2232 2233#ifndef READ_ONLY 2234void do_punch(int argc, char *argv[]) 2235{ 2236 ext2_ino_t ino; 2237 blk64_t start, end; 2238 int err; 2239 errcode_t errcode; 2240 2241 if (common_args_process(argc, argv, 3, 4, argv[0], 2242 "<file> start_blk [end_blk]", 2243 CHECK_FS_RW | CHECK_FS_BITMAPS)) 2244 return; 2245 2246 ino = string_to_inode(argv[1]); 2247 if (!ino) 2248 return; 2249 err = strtoblk(argv[0], argv[2], &start); 2250 if (err) 2251 return; 2252 if (argc == 4) { 2253 err = strtoblk(argv[0], argv[3], &end); 2254 if (err) 2255 return; 2256 } else 2257 end = ~0; 2258 2259 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end); 2260 2261 if (errcode) { 2262 com_err(argv[0], errcode, 2263 "while truncating inode %u from %llu to %llu\n", ino, 2264 (unsigned long long) start, (unsigned long long) end); 2265 return; 2266 } 2267} 2268#endif /* READ_ONLY */ 2269 2270void do_symlink(int argc, char *argv[]) 2271{ 2272 char *cp; 2273 ext2_ino_t parent; 2274 char *name, *target; 2275 errcode_t retval; 2276 2277 if (common_args_process(argc, argv, 3, 3, "symlink", 2278 "<filename> <target>", CHECK_FS_RW)) 2279 return; 2280 2281 cp = strrchr(argv[1], '/'); 2282 if (cp) { 2283 *cp = 0; 2284 parent = string_to_inode(argv[1]); 2285 if (!parent) { 2286 com_err(argv[1], ENOENT, 0); 2287 return; 2288 } 2289 name = cp+1; 2290 } else { 2291 parent = cwd; 2292 name = argv[1]; 2293 } 2294 target = argv[2]; 2295 2296try_again: 2297 retval = ext2fs_symlink(current_fs, parent, 0, name, target); 2298 if (retval == EXT2_ET_DIR_NO_SPACE) { 2299 retval = ext2fs_expand_dir(current_fs, parent); 2300 if (retval) { 2301 com_err(argv[0], retval, "while expanding directory"); 2302 return; 2303 } 2304 goto try_again; 2305 } 2306 if (retval) { 2307 com_err("ext2fs_symlink", retval, 0); 2308 return; 2309 } 2310 2311} 2312 2313void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[]) 2314{ 2315 struct ext2_super_block *sb; 2316 struct mmp_struct *mmp_s; 2317 time_t t; 2318 errcode_t retval = 0; 2319 2320 if (check_fs_open(argv[0])) 2321 return; 2322 2323 sb = current_fs->super; 2324 2325 if (current_fs->mmp_buf == NULL) { 2326 retval = ext2fs_get_mem(current_fs->blocksize, 2327 ¤t_fs->mmp_buf); 2328 if (retval) { 2329 com_err(argv[0], retval, "allocating MMP buffer.\n"); 2330 return; 2331 } 2332 } 2333 2334 mmp_s = current_fs->mmp_buf; 2335 2336 retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block, 2337 current_fs->mmp_buf); 2338 if (retval) { 2339 com_err(argv[0], retval, "reading MMP block.\n"); 2340 return; 2341 } 2342 2343 t = mmp_s->mmp_time; 2344 fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block); 2345 fprintf(stdout, "update_interval: %d\n", 2346 current_fs->super->s_mmp_update_interval); 2347 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval); 2348 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq); 2349 fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t)); 2350 fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename); 2351 fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname); 2352 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic); 2353} 2354 2355static int source_file(const char *cmd_file, int ss_idx) 2356{ 2357 FILE *f; 2358 char buf[BUFSIZ]; 2359 char *cp; 2360 int exit_status = 0; 2361 int retval; 2362 2363 if (strcmp(cmd_file, "-") == 0) 2364 f = stdin; 2365 else { 2366 f = fopen(cmd_file, "r"); 2367 if (!f) { 2368 perror(cmd_file); 2369 exit(1); 2370 } 2371 } 2372 fflush(stdout); 2373 fflush(stderr); 2374 setbuf(stdout, NULL); 2375 setbuf(stderr, NULL); 2376 while (!feof(f)) { 2377 if (fgets(buf, sizeof(buf), f) == NULL) 2378 break; 2379 cp = strchr(buf, '\n'); 2380 if (cp) 2381 *cp = 0; 2382 cp = strchr(buf, '\r'); 2383 if (cp) 2384 *cp = 0; 2385 printf("debugfs: %s\n", buf); 2386 retval = ss_execute_line(ss_idx, buf); 2387 if (retval) { 2388 ss_perror(ss_idx, retval, buf); 2389 exit_status++; 2390 } 2391 } 2392 if (f != stdin) 2393 fclose(f); 2394 return exit_status; 2395} 2396 2397int main(int argc, char **argv) 2398{ 2399 int retval; 2400 const char *usage = 2401 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] " 2402 "[-R request] [-V] [" 2403#ifndef READ_ONLY 2404 "[-w] " 2405#endif 2406 "[-c] device]"; 2407 int c; 2408 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 2409 char *request = 0; 2410 int exit_status = 0; 2411 char *cmd_file = 0; 2412 blk64_t superblock = 0; 2413 blk64_t blocksize = 0; 2414 int catastrophic = 0; 2415 char *data_filename = 0; 2416#ifdef READ_ONLY 2417 const char *opt_string = "icR:f:b:s:Vd:D"; 2418#else 2419 const char *opt_string = "iwcR:f:b:s:Vd:D"; 2420#endif 2421 2422 if (debug_prog_name == 0) 2423#ifdef READ_ONLY 2424 debug_prog_name = "rdebugfs"; 2425#else 2426 debug_prog_name = "debugfs"; 2427#endif 2428 add_error_table(&et_ext2_error_table); 2429 fprintf (stderr, "%s %s (%s)\n", debug_prog_name, 2430 E2FSPROGS_VERSION, E2FSPROGS_DATE); 2431 2432 while ((c = getopt (argc, argv, opt_string)) != EOF) { 2433 switch (c) { 2434 case 'R': 2435 request = optarg; 2436 break; 2437 case 'f': 2438 cmd_file = optarg; 2439 break; 2440 case 'd': 2441 data_filename = optarg; 2442 break; 2443 case 'i': 2444 open_flags |= EXT2_FLAG_IMAGE_FILE; 2445 break; 2446#ifndef READ_ONLY 2447 case 'w': 2448 open_flags |= EXT2_FLAG_RW; 2449 break; 2450#endif 2451 case 'D': 2452 open_flags |= EXT2_FLAG_DIRECT_IO; 2453 break; 2454 case 'b': 2455 blocksize = parse_ulong(optarg, argv[0], 2456 "block size", 0); 2457 break; 2458 case 's': 2459 retval = strtoblk(argv[0], optarg, &superblock); 2460 if (retval) 2461 return 1; 2462 break; 2463 case 'c': 2464 catastrophic = 1; 2465 break; 2466 case 'V': 2467 /* Print version number and exit */ 2468 fprintf(stderr, "\tUsing %s\n", 2469 error_message(EXT2_ET_BASE)); 2470 exit(0); 2471 default: 2472 com_err(argv[0], 0, usage, debug_prog_name); 2473 return 1; 2474 } 2475 } 2476 if (optind < argc) 2477 open_filesystem(argv[optind], open_flags, 2478 superblock, blocksize, catastrophic, 2479 data_filename); 2480 2481 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL, 2482 &debug_cmds, &retval); 2483 if (retval) { 2484 ss_perror(sci_idx, retval, "creating invocation"); 2485 exit(1); 2486 } 2487 ss_get_readline(sci_idx); 2488 2489 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval); 2490 if (retval) { 2491 ss_perror(sci_idx, retval, "adding standard requests"); 2492 exit (1); 2493 } 2494 if (extra_cmds) 2495 ss_add_request_table (sci_idx, extra_cmds, 1, &retval); 2496 if (retval) { 2497 ss_perror(sci_idx, retval, "adding extra requests"); 2498 exit (1); 2499 } 2500 if (request) { 2501 retval = 0; 2502 retval = ss_execute_line(sci_idx, request); 2503 if (retval) { 2504 ss_perror(sci_idx, retval, request); 2505 exit_status++; 2506 } 2507 } else if (cmd_file) { 2508 exit_status = source_file(cmd_file, sci_idx); 2509 } else { 2510 ss_listen(sci_idx); 2511 } 2512 2513 ss_delete_invocation(sci_idx); 2514 2515 if (current_fs) 2516 close_filesystem(); 2517 2518 remove_error_table(&et_ext2_error_table); 2519 return exit_status; 2520} 2521