debugfs.c revision e64e6761aa22f31123a91206a5686526f7b9c6c0
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 current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; 93 94 if (catastrophic) 95 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps"); 96 else { 97 retval = ext2fs_read_inode_bitmap(current_fs); 98 if (retval) { 99 com_err(device, retval, "while reading inode bitmap"); 100 goto errout; 101 } 102 retval = ext2fs_read_block_bitmap(current_fs); 103 if (retval) { 104 com_err(device, retval, "while reading block bitmap"); 105 goto errout; 106 } 107 } 108 109 if (data_io) { 110 retval = ext2fs_set_data_io(current_fs, data_io); 111 if (retval) { 112 com_err(device, retval, 113 "while setting data source"); 114 goto errout; 115 } 116 } 117 118 root = cwd = EXT2_ROOT_INO; 119 return; 120 121errout: 122 retval = ext2fs_close(current_fs); 123 if (retval) 124 com_err(device, retval, "while trying to close filesystem"); 125 current_fs = NULL; 126} 127 128void do_open_filesys(int argc, char **argv) 129{ 130 int c, err; 131 int catastrophic = 0; 132 blk64_t superblock = 0; 133 blk64_t blocksize = 0; 134 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 135 char *data_filename = 0; 136 137 reset_getopt(); 138 while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) { 139 switch (c) { 140 case 'i': 141 open_flags |= EXT2_FLAG_IMAGE_FILE; 142 break; 143 case 'w': 144#ifdef READ_ONLY 145 goto print_usage; 146#else 147 open_flags |= EXT2_FLAG_RW; 148#endif /* READ_ONLY */ 149 break; 150 case 'f': 151 open_flags |= EXT2_FLAG_FORCE; 152 break; 153 case 'e': 154 open_flags |= EXT2_FLAG_EXCLUSIVE; 155 break; 156 case 'c': 157 catastrophic = 1; 158 break; 159 case 'd': 160 data_filename = optarg; 161 break; 162 case 'D': 163 open_flags |= EXT2_FLAG_DIRECT_IO; 164 break; 165 case 'b': 166 blocksize = parse_ulong(optarg, argv[0], 167 "block size", &err); 168 if (err) 169 return; 170 break; 171 case 's': 172 superblock = parse_ulong(optarg, argv[0], 173 "superblock number", &err); 174 if (err) 175 return; 176 break; 177 default: 178 goto print_usage; 179 } 180 } 181 if (optind != argc-1) { 182 goto print_usage; 183 } 184 if (check_fs_not_open(argv[0])) 185 return; 186 open_filesystem(argv[optind], open_flags, 187 superblock, blocksize, catastrophic, 188 data_filename); 189 return; 190 191print_usage: 192 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] [-c] " 193#ifndef READ_ONLY 194 "[-w] " 195#endif 196 "<device>\n", argv[0]); 197} 198 199void do_lcd(int argc, char **argv) 200{ 201 if (argc != 2) { 202 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>"); 203 return; 204 } 205 206 if (chdir(argv[1]) == -1) { 207 com_err(argv[0], errno, 208 "while trying to change native directory to %s", 209 argv[1]); 210 return; 211 } 212} 213 214static void close_filesystem(NOARGS) 215{ 216 int retval; 217 218 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) { 219 retval = ext2fs_write_inode_bitmap(current_fs); 220 if (retval) 221 com_err("ext2fs_write_inode_bitmap", retval, 0); 222 } 223 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) { 224 retval = ext2fs_write_block_bitmap(current_fs); 225 if (retval) 226 com_err("ext2fs_write_block_bitmap", retval, 0); 227 } 228 retval = ext2fs_close(current_fs); 229 if (retval) 230 com_err("ext2fs_close", retval, 0); 231 current_fs = NULL; 232 return; 233} 234 235void do_close_filesys(int argc, char **argv) 236{ 237 int c; 238 239 if (check_fs_open(argv[0])) 240 return; 241 242 reset_getopt(); 243 while ((c = getopt (argc, argv, "a")) != EOF) { 244 switch (c) { 245 case 'a': 246 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 247 break; 248 default: 249 goto print_usage; 250 } 251 } 252 253 if (argc > optind) { 254 print_usage: 255 com_err(0, 0, "Usage: close_filesys [-a]"); 256 return; 257 } 258 259 close_filesystem(); 260} 261 262#ifndef READ_ONLY 263void do_init_filesys(int argc, char **argv) 264{ 265 struct ext2_super_block param; 266 errcode_t retval; 267 int err; 268 269 if (common_args_process(argc, argv, 3, 3, "initialize", 270 "<device> <blocksize>", CHECK_FS_NOTOPEN)) 271 return; 272 273 memset(¶m, 0, sizeof(struct ext2_super_block)); 274 ext2fs_blocks_count_set(¶m, parse_ulong(argv[2], argv[0], 275 "blocks count", &err)); 276 if (err) 277 return; 278 retval = ext2fs_initialize(argv[1], 0, ¶m, 279 unix_io_manager, ¤t_fs); 280 if (retval) { 281 com_err(argv[1], retval, "while initializing filesystem"); 282 current_fs = NULL; 283 return; 284 } 285 root = cwd = EXT2_ROOT_INO; 286 return; 287} 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#endif /* READ_ONLY */ 308 309static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask, 310 const char *str, int *first, FILE *f) 311{ 312 if (ext2fs_bg_flags_test(fs, group, mask)) { 313 if (*first) { 314 fputs(" [", f); 315 *first = 0; 316 } else 317 fputs(", ", f); 318 fputs(str, f); 319 } 320} 321 322void do_show_super_stats(int argc, char *argv[]) 323{ 324 const char *units ="block"; 325 dgrp_t i; 326 FILE *out; 327 int c, header_only = 0; 328 int numdirs = 0, first, gdt_csum; 329 330 reset_getopt(); 331 while ((c = getopt (argc, argv, "h")) != EOF) { 332 switch (c) { 333 case 'h': 334 header_only++; 335 break; 336 default: 337 goto print_usage; 338 } 339 } 340 if (optind != argc) { 341 goto print_usage; 342 } 343 if (check_fs_open(argv[0])) 344 return; 345 out = open_pager(); 346 347 if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, 348 EXT4_FEATURE_RO_COMPAT_BIGALLOC)) 349 units = "cluster"; 350 351 list_super2(current_fs->super, out); 352 for (i=0; i < current_fs->group_desc_count; i++) 353 numdirs += ext2fs_bg_used_dirs_count(current_fs, i); 354 fprintf(out, "Directories: %d\n", numdirs); 355 356 if (header_only) { 357 close_pager(out); 358 return; 359 } 360 361 gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, 362 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 363 for (i = 0; i < current_fs->group_desc_count; i++) { 364 fprintf(out, " Group %2d: block bitmap at %llu, " 365 "inode bitmap at %llu, " 366 "inode table at %llu\n" 367 " %u free %s%s, " 368 "%u free %s, " 369 "%u used %s%s", 370 i, ext2fs_block_bitmap_loc(current_fs, i), 371 ext2fs_inode_bitmap_loc(current_fs, i), 372 ext2fs_inode_table_loc(current_fs, i), 373 ext2fs_bg_free_blocks_count(current_fs, i), units, 374 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ? 375 "s" : "", 376 ext2fs_bg_free_inodes_count(current_fs, i), 377 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ? 378 "inodes" : "inode", 379 ext2fs_bg_used_dirs_count(current_fs, i), 380 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories" 381 : "directory", gdt_csum ? ", " : "\n"); 382 if (gdt_csum) 383 fprintf(out, "%u unused %s\n", 384 ext2fs_bg_itable_unused(current_fs, i), 385 ext2fs_bg_itable_unused(current_fs, i) != 1 ? 386 "inodes" : "inode"); 387 first = 1; 388 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init", 389 &first, out); 390 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init", 391 &first, out); 392 if (gdt_csum) { 393 fprintf(out, "%sChecksum 0x%04x", 394 first ? " [":", ", ext2fs_bg_checksum(current_fs, i)); 395 first = 0; 396 } 397 if (!first) 398 fputs("]\n", out); 399 } 400 close_pager(out); 401 return; 402print_usage: 403 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]); 404} 405 406#ifndef READ_ONLY 407void do_dirty_filesys(int argc EXT2FS_ATTR((unused)), 408 char **argv EXT2FS_ATTR((unused))) 409{ 410 if (check_fs_open(argv[0])) 411 return; 412 if (check_fs_read_write(argv[0])) 413 return; 414 415 if (argv[1] && !strcmp(argv[1], "-clean")) 416 current_fs->super->s_state |= EXT2_VALID_FS; 417 else 418 current_fs->super->s_state &= ~EXT2_VALID_FS; 419 ext2fs_mark_super_dirty(current_fs); 420} 421#endif /* READ_ONLY */ 422 423struct list_blocks_struct { 424 FILE *f; 425 e2_blkcnt_t total; 426 blk64_t first_block, last_block; 427 e2_blkcnt_t first_bcnt, last_bcnt; 428 e2_blkcnt_t first; 429}; 430 431static void finish_range(struct list_blocks_struct *lb) 432{ 433 if (lb->first_block == 0) 434 return; 435 if (lb->first) 436 lb->first = 0; 437 else 438 fprintf(lb->f, ", "); 439 if (lb->first_block == lb->last_block) 440 fprintf(lb->f, "(%lld):%llu", 441 (long long)lb->first_bcnt, lb->first_block); 442 else 443 fprintf(lb->f, "(%lld-%lld):%llu-%llu", 444 (long long)lb->first_bcnt, (long long)lb->last_bcnt, 445 lb->first_block, lb->last_block); 446 lb->first_block = 0; 447} 448 449static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 450 blk64_t *blocknr, e2_blkcnt_t blockcnt, 451 blk64_t ref_block EXT2FS_ATTR((unused)), 452 int ref_offset EXT2FS_ATTR((unused)), 453 void *private) 454{ 455 struct list_blocks_struct *lb = (struct list_blocks_struct *) private; 456 457 lb->total++; 458 if (blockcnt >= 0) { 459 /* 460 * See if we can add on to the existing range (if it exists) 461 */ 462 if (lb->first_block && 463 (lb->last_block+1 == *blocknr) && 464 (lb->last_bcnt+1 == blockcnt)) { 465 lb->last_block = *blocknr; 466 lb->last_bcnt = blockcnt; 467 return 0; 468 } 469 /* 470 * Start a new range. 471 */ 472 finish_range(lb); 473 lb->first_block = lb->last_block = *blocknr; 474 lb->first_bcnt = lb->last_bcnt = blockcnt; 475 return 0; 476 } 477 /* 478 * Not a normal block. Always force a new range. 479 */ 480 finish_range(lb); 481 if (lb->first) 482 lb->first = 0; 483 else 484 fprintf(lb->f, ", "); 485 if (blockcnt == -1) 486 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr); 487 else if (blockcnt == -2) 488 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr); 489 else if (blockcnt == -3) 490 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr); 491 return 0; 492} 493 494static void dump_xattr_string(FILE *out, const char *str, int len) 495{ 496 int printable = 0; 497 int i; 498 499 /* check: is string "printable enough?" */ 500 for (i = 0; i < len; i++) 501 if (isprint(str[i])) 502 printable++; 503 504 if (printable <= len*7/8) 505 printable = 0; 506 507 for (i = 0; i < len; i++) 508 if (printable) 509 fprintf(out, isprint(str[i]) ? "%c" : "\\%03o", 510 (unsigned char)str[i]); 511 else 512 fprintf(out, "%02x ", (unsigned char)str[i]); 513} 514 515static void internal_dump_inode_extra(FILE *out, 516 const char *prefix EXT2FS_ATTR((unused)), 517 ext2_ino_t inode_num EXT2FS_ATTR((unused)), 518 struct ext2_inode_large *inode) 519{ 520 struct ext2_ext_attr_entry *entry; 521 __u32 *magic; 522 char *start, *end; 523 unsigned int storage_size; 524 525 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize); 526 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) - 527 EXT2_GOOD_OLD_INODE_SIZE) { 528 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n", 529 inode->i_extra_isize); 530 return; 531 } 532 storage_size = EXT2_INODE_SIZE(current_fs->super) - 533 EXT2_GOOD_OLD_INODE_SIZE - 534 inode->i_extra_isize; 535 magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE + 536 inode->i_extra_isize); 537 if (*magic == EXT2_EXT_ATTR_MAGIC) { 538 fprintf(out, "Extended attributes stored in inode body: \n"); 539 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super); 540 start = (char *) magic + sizeof(__u32); 541 entry = (struct ext2_ext_attr_entry *) start; 542 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) { 543 struct ext2_ext_attr_entry *next = 544 EXT2_EXT_ATTR_NEXT(entry); 545 if (entry->e_value_size > storage_size || 546 (char *) next >= end) { 547 fprintf(out, "invalid EA entry in inode\n"); 548 return; 549 } 550 fprintf(out, " "); 551 dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry), 552 entry->e_name_len); 553 fprintf(out, " = \""); 554 dump_xattr_string(out, start + entry->e_value_offs, 555 entry->e_value_size); 556 fprintf(out, "\" (%u)\n", entry->e_value_size); 557 entry = next; 558 } 559 } 560} 561 562static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode) 563{ 564 struct list_blocks_struct lb; 565 566 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix); 567 lb.total = 0; 568 lb.first_block = 0; 569 lb.f = f; 570 lb.first = 1; 571 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 572 list_blocks_proc, (void *)&lb); 573 finish_range(&lb); 574 if (lb.total) 575 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total); 576 fprintf(f,"\n"); 577} 578 579static int int_log10(unsigned long long arg) 580{ 581 int l = 0; 582 583 arg = arg / 10; 584 while (arg) { 585 l++; 586 arg = arg / 10; 587 } 588 return l; 589} 590 591#define DUMP_LEAF_EXTENTS 0x01 592#define DUMP_NODE_EXTENTS 0x02 593#define DUMP_EXTENT_TABLE 0x04 594 595static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino, 596 int flags, int logical_width, int physical_width) 597{ 598 ext2_extent_handle_t handle; 599 struct ext2fs_extent extent; 600 struct ext2_extent_info info; 601 int op = EXT2_EXTENT_ROOT; 602 unsigned int printed = 0; 603 errcode_t errcode; 604 605 errcode = ext2fs_extent_open(current_fs, ino, &handle); 606 if (errcode) 607 return; 608 609 if (flags & DUMP_EXTENT_TABLE) 610 fprintf(f, "Level Entries %*s %*s Length Flags\n", 611 (logical_width*2)+3, "Logical", 612 (physical_width*2)+3, "Physical"); 613 else 614 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix); 615 616 while (1) { 617 errcode = ext2fs_extent_get(handle, op, &extent); 618 619 if (errcode) 620 break; 621 622 op = EXT2_EXTENT_NEXT; 623 624 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 625 continue; 626 627 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) { 628 if ((flags & DUMP_LEAF_EXTENTS) == 0) 629 continue; 630 } else { 631 if ((flags & DUMP_NODE_EXTENTS) == 0) 632 continue; 633 } 634 635 errcode = ext2fs_extent_get_info(handle, &info); 636 if (errcode) 637 continue; 638 639 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) { 640 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 641 continue; 642 643 if (flags & DUMP_EXTENT_TABLE) { 644 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 645 "%*llu%*s %6u\n", 646 info.curr_level, info.max_depth, 647 info.curr_entry, info.num_entries, 648 logical_width, 649 extent.e_lblk, 650 logical_width, 651 extent.e_lblk + (extent.e_len - 1), 652 physical_width, 653 extent.e_pblk, 654 physical_width+3, "", extent.e_len); 655 continue; 656 } 657 658 fprintf(f, "%s(ETB%d):%lld", 659 printed ? ", " : "", info.curr_level, 660 extent.e_pblk); 661 printed = 1; 662 continue; 663 } 664 665 if (flags & DUMP_EXTENT_TABLE) { 666 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 667 "%*llu - %*llu %6u %s\n", 668 info.curr_level, info.max_depth, 669 info.curr_entry, info.num_entries, 670 logical_width, 671 extent.e_lblk, 672 logical_width, 673 extent.e_lblk + (extent.e_len - 1), 674 physical_width, 675 extent.e_pblk, 676 physical_width, 677 extent.e_pblk + (extent.e_len - 1), 678 extent.e_len, 679 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 680 "Uninit" : ""); 681 continue; 682 } 683 684 if (extent.e_len == 0) 685 continue; 686 else if (extent.e_len == 1) 687 fprintf(f, 688 "%s(%lld%s):%lld", 689 printed ? ", " : "", 690 extent.e_lblk, 691 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 692 "[u]" : "", 693 extent.e_pblk); 694 else 695 fprintf(f, 696 "%s(%lld-%lld%s):%lld-%lld", 697 printed ? ", " : "", 698 extent.e_lblk, 699 extent.e_lblk + (extent.e_len - 1), 700 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 701 "[u]" : "", 702 extent.e_pblk, 703 extent.e_pblk + (extent.e_len - 1)); 704 printed = 1; 705 } 706 if (printed) 707 fprintf(f, "\n"); 708} 709 710void internal_dump_inode(FILE *out, const char *prefix, 711 ext2_ino_t inode_num, struct ext2_inode *inode, 712 int do_dump_blocks) 713{ 714 const char *i_type; 715 char frag, fsize; 716 int os = current_fs->super->s_creator_os; 717 struct ext2_inode_large *large_inode; 718 int is_large_inode = 0; 719 720 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 721 is_large_inode = 1; 722 large_inode = (struct ext2_inode_large *) inode; 723 724 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory"; 725 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular"; 726 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink"; 727 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special"; 728 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special"; 729 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO"; 730 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket"; 731 else i_type = "bad type"; 732 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type); 733 fprintf(out, "%sMode: %04o Flags: 0x%x\n", 734 prefix, inode->i_mode & 0777, inode->i_flags); 735 if (is_large_inode && large_inode->i_extra_isize >= 24) { 736 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n", 737 prefix, inode->i_generation, large_inode->i_version_hi, 738 inode->osd1.linux1.l_i_version); 739 } else { 740 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix, 741 inode->i_generation, inode->osd1.linux1.l_i_version); 742 } 743 fprintf(out, "%sUser: %5d Group: %5d Size: ", 744 prefix, inode_uid(*inode), inode_gid(*inode)); 745 if (LINUX_S_ISREG(inode->i_mode)) 746 fprintf(out, "%llu\n", EXT2_I_SIZE(inode)); 747 else 748 fprintf(out, "%d\n", inode->i_size); 749 if (os == EXT2_OS_HURD) 750 fprintf(out, 751 "%sFile ACL: %d Directory ACL: %d Translator: %d\n", 752 prefix, 753 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0, 754 inode->osd1.hurd1.h_i_translator); 755 else 756 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n", 757 prefix, 758 inode->i_file_acl | ((long long) 759 (inode->osd2.linux2.l_i_file_acl_high) << 32), 760 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0); 761 if (os == EXT2_OS_LINUX) 762 fprintf(out, "%sLinks: %d Blockcount: %llu\n", 763 prefix, inode->i_links_count, 764 (((unsigned long long) 765 inode->osd2.linux2.l_i_blocks_hi << 32)) + 766 inode->i_blocks); 767 else 768 fprintf(out, "%sLinks: %d Blockcount: %u\n", 769 prefix, inode->i_links_count, inode->i_blocks); 770 switch (os) { 771 case EXT2_OS_HURD: 772 frag = inode->osd2.hurd2.h_i_frag; 773 fsize = inode->osd2.hurd2.h_i_fsize; 774 break; 775 default: 776 frag = fsize = 0; 777 } 778 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n", 779 prefix, inode->i_faddr, frag, fsize); 780 if (is_large_inode && large_inode->i_extra_isize >= 24) { 781 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix, 782 inode->i_ctime, large_inode->i_ctime_extra, 783 time_to_string(inode->i_ctime)); 784 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix, 785 inode->i_atime, large_inode->i_atime_extra, 786 time_to_string(inode->i_atime)); 787 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix, 788 inode->i_mtime, large_inode->i_mtime_extra, 789 time_to_string(inode->i_mtime)); 790 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix, 791 large_inode->i_crtime, large_inode->i_crtime_extra, 792 time_to_string(large_inode->i_crtime)); 793 } else { 794 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime, 795 time_to_string(inode->i_ctime)); 796 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime, 797 time_to_string(inode->i_atime)); 798 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime, 799 time_to_string(inode->i_mtime)); 800 } 801 if (inode->i_dtime) 802 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime, 803 time_to_string(inode->i_dtime)); 804 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 805 internal_dump_inode_extra(out, prefix, inode_num, 806 (struct ext2_inode_large *) inode); 807 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0) 808 fprintf(out, "%sFast_link_dest: %.*s\n", prefix, 809 (int) inode->i_size, (char *)inode->i_block); 810 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) { 811 int major, minor; 812 const char *devnote; 813 814 if (inode->i_block[0]) { 815 major = (inode->i_block[0] >> 8) & 255; 816 minor = inode->i_block[0] & 255; 817 devnote = ""; 818 } else { 819 major = (inode->i_block[1] & 0xfff00) >> 8; 820 minor = ((inode->i_block[1] & 0xff) | 821 ((inode->i_block[1] >> 12) & 0xfff00)); 822 devnote = "(New-style) "; 823 } 824 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n", 825 devnote, major, minor, major, minor); 826 } else if (do_dump_blocks) { 827 if (inode->i_flags & EXT4_EXTENTS_FL) 828 dump_extents(out, prefix, inode_num, 829 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0); 830 else 831 dump_blocks(out, prefix, inode_num); 832 } 833} 834 835static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode) 836{ 837 FILE *out; 838 839 out = open_pager(); 840 internal_dump_inode(out, "", inode_num, inode, 1); 841 close_pager(out); 842} 843 844void do_stat(int argc, char *argv[]) 845{ 846 ext2_ino_t inode; 847 struct ext2_inode * inode_buf; 848 849 if (check_fs_open(argv[0])) 850 return; 851 852 inode_buf = (struct ext2_inode *) 853 malloc(EXT2_INODE_SIZE(current_fs->super)); 854 if (!inode_buf) { 855 fprintf(stderr, "do_stat: can't allocate buffer\n"); 856 return; 857 } 858 859 if (common_inode_args_process(argc, argv, &inode, 0)) { 860 free(inode_buf); 861 return; 862 } 863 864 if (debugfs_read_inode_full(inode, inode_buf, argv[0], 865 EXT2_INODE_SIZE(current_fs->super))) { 866 free(inode_buf); 867 return; 868 } 869 870 dump_inode(inode, inode_buf); 871 free(inode_buf); 872 return; 873} 874 875void do_dump_extents(int argc, char **argv) 876{ 877 struct ext2_inode inode; 878 ext2_ino_t ino; 879 FILE *out; 880 int c, flags = 0; 881 int logical_width; 882 int physical_width; 883 884 reset_getopt(); 885 while ((c = getopt(argc, argv, "nl")) != EOF) { 886 switch (c) { 887 case 'n': 888 flags |= DUMP_NODE_EXTENTS; 889 break; 890 case 'l': 891 flags |= DUMP_LEAF_EXTENTS; 892 break; 893 } 894 } 895 896 if (argc != optind + 1) { 897 com_err(0, 0, "Usage: dump_extents [-n] [-l] file"); 898 return; 899 } 900 901 if (flags == 0) 902 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS; 903 flags |= DUMP_EXTENT_TABLE; 904 905 if (check_fs_open(argv[0])) 906 return; 907 908 ino = string_to_inode(argv[optind]); 909 if (ino == 0) 910 return; 911 912 if (debugfs_read_inode(ino, &inode, argv[0])) 913 return; 914 915 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) { 916 fprintf(stderr, "%s: does not uses extent block maps\n", 917 argv[optind]); 918 return; 919 } 920 921 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/ 922 current_fs->blocksize) + 1; 923 if (logical_width < 5) 924 logical_width = 5; 925 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1; 926 if (physical_width < 5) 927 physical_width = 5; 928 929 out = open_pager(); 930 dump_extents(out, "", ino, flags, logical_width, physical_width); 931 close_pager(out); 932 return; 933} 934 935static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 936 blk64_t *blocknr, 937 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 938 blk64_t ref_block EXT2FS_ATTR((unused)), 939 int ref_offset EXT2FS_ATTR((unused)), 940 void *private EXT2FS_ATTR((unused))) 941{ 942 printf("%llu ", *blocknr); 943 return 0; 944} 945 946void do_blocks(int argc, char *argv[]) 947{ 948 ext2_ino_t inode; 949 950 if (check_fs_open(argv[0])) 951 return; 952 953 if (common_inode_args_process(argc, argv, &inode, 0)) { 954 return; 955 } 956 957 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 958 print_blocks_proc, NULL); 959 fputc('\n', stdout); 960 return; 961} 962 963void do_chroot(int argc, char *argv[]) 964{ 965 ext2_ino_t inode; 966 int retval; 967 968 if (common_inode_args_process(argc, argv, &inode, 0)) 969 return; 970 971 retval = ext2fs_check_directory(current_fs, inode); 972 if (retval) { 973 com_err(argv[1], retval, 0); 974 return; 975 } 976 root = inode; 977} 978 979#ifndef READ_ONLY 980void do_clri(int argc, char *argv[]) 981{ 982 ext2_ino_t inode; 983 struct ext2_inode inode_buf; 984 985 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 986 return; 987 988 if (debugfs_read_inode(inode, &inode_buf, argv[0])) 989 return; 990 memset(&inode_buf, 0, sizeof(inode_buf)); 991 if (debugfs_write_inode(inode, &inode_buf, argv[0])) 992 return; 993} 994 995void do_freei(int argc, char *argv[]) 996{ 997 unsigned int len = 1; 998 int err = 0; 999 ext2_ino_t inode; 1000 1001 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]", 1002 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1003 return; 1004 if (check_fs_read_write(argv[0])) 1005 return; 1006 1007 inode = string_to_inode(argv[1]); 1008 if (!inode) 1009 return; 1010 1011 if (argc == 3) { 1012 len = parse_ulong(argv[2], argv[0], "length", &err); 1013 if (err) 1014 return; 1015 } 1016 1017 if (len == 1 && 1018 !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1019 com_err(argv[0], 0, "Warning: inode already clear"); 1020 while (len-- > 0) 1021 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode); 1022 ext2fs_mark_ib_dirty(current_fs); 1023} 1024 1025void do_seti(int argc, char *argv[]) 1026{ 1027 unsigned int len = 1; 1028 int err = 0; 1029 ext2_ino_t inode; 1030 1031 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]", 1032 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1033 return; 1034 if (check_fs_read_write(argv[0])) 1035 return; 1036 1037 inode = string_to_inode(argv[1]); 1038 if (!inode) 1039 return; 1040 1041 if (argc == 3) { 1042 len = parse_ulong(argv[2], argv[0], "length", &err); 1043 if (err) 1044 return; 1045 } 1046 1047 if ((len == 1) && 1048 ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1049 com_err(argv[0], 0, "Warning: inode already set"); 1050 while (len-- > 0) 1051 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++); 1052 ext2fs_mark_ib_dirty(current_fs); 1053} 1054#endif /* READ_ONLY */ 1055 1056void do_testi(int argc, char *argv[]) 1057{ 1058 ext2_ino_t inode; 1059 1060 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS)) 1061 return; 1062 1063 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 1064 printf("Inode %u is marked in use\n", inode); 1065 else 1066 printf("Inode %u is not in use\n", inode); 1067} 1068 1069#ifndef READ_ONLY 1070void do_freeb(int argc, char *argv[]) 1071{ 1072 blk64_t block; 1073 blk64_t count = 1; 1074 1075 if (common_block_args_process(argc, argv, &block, &count)) 1076 return; 1077 if (check_fs_read_write(argv[0])) 1078 return; 1079 while (count-- > 0) { 1080 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1081 com_err(argv[0], 0, "Warning: block %llu already clear", 1082 block); 1083 ext2fs_unmark_block_bitmap2(current_fs->block_map,block); 1084 block++; 1085 } 1086 ext2fs_mark_bb_dirty(current_fs); 1087} 1088 1089void do_setb(int argc, char *argv[]) 1090{ 1091 blk64_t block; 1092 blk64_t count = 1; 1093 1094 if (common_block_args_process(argc, argv, &block, &count)) 1095 return; 1096 if (check_fs_read_write(argv[0])) 1097 return; 1098 while (count-- > 0) { 1099 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1100 com_err(argv[0], 0, "Warning: block %llu already set", 1101 block); 1102 ext2fs_mark_block_bitmap2(current_fs->block_map,block); 1103 block++; 1104 } 1105 ext2fs_mark_bb_dirty(current_fs); 1106} 1107#endif /* READ_ONLY */ 1108 1109void do_testb(int argc, char *argv[]) 1110{ 1111 blk64_t block; 1112 blk64_t count = 1; 1113 1114 if (common_block_args_process(argc, argv, &block, &count)) 1115 return; 1116 while (count-- > 0) { 1117 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1118 printf("Block %llu marked in use\n", block); 1119 else 1120 printf("Block %llu not in use\n", block); 1121 block++; 1122 } 1123} 1124 1125#ifndef READ_ONLY 1126static void modify_u8(char *com, const char *prompt, 1127 const char *format, __u8 *val) 1128{ 1129 char buf[200]; 1130 unsigned long v; 1131 char *tmp; 1132 1133 sprintf(buf, format, *val); 1134 printf("%30s [%s] ", prompt, buf); 1135 if (!fgets(buf, sizeof(buf), stdin)) 1136 return; 1137 if (buf[strlen (buf) - 1] == '\n') 1138 buf[strlen (buf) - 1] = '\0'; 1139 if (!buf[0]) 1140 return; 1141 v = strtoul(buf, &tmp, 0); 1142 if (*tmp) 1143 com_err(com, 0, "Bad value - %s", buf); 1144 else 1145 *val = v; 1146} 1147 1148static void modify_u16(char *com, const char *prompt, 1149 const char *format, __u16 *val) 1150{ 1151 char buf[200]; 1152 unsigned long v; 1153 char *tmp; 1154 1155 sprintf(buf, format, *val); 1156 printf("%30s [%s] ", prompt, buf); 1157 if (!fgets(buf, sizeof(buf), stdin)) 1158 return; 1159 if (buf[strlen (buf) - 1] == '\n') 1160 buf[strlen (buf) - 1] = '\0'; 1161 if (!buf[0]) 1162 return; 1163 v = strtoul(buf, &tmp, 0); 1164 if (*tmp) 1165 com_err(com, 0, "Bad value - %s", buf); 1166 else 1167 *val = v; 1168} 1169 1170static void modify_u32(char *com, const char *prompt, 1171 const char *format, __u32 *val) 1172{ 1173 char buf[200]; 1174 unsigned long v; 1175 char *tmp; 1176 1177 sprintf(buf, format, *val); 1178 printf("%30s [%s] ", prompt, buf); 1179 if (!fgets(buf, sizeof(buf), stdin)) 1180 return; 1181 if (buf[strlen (buf) - 1] == '\n') 1182 buf[strlen (buf) - 1] = '\0'; 1183 if (!buf[0]) 1184 return; 1185 v = strtoul(buf, &tmp, 0); 1186 if (*tmp) 1187 com_err(com, 0, "Bad value - %s", buf); 1188 else 1189 *val = v; 1190} 1191 1192 1193void do_modify_inode(int argc, char *argv[]) 1194{ 1195 struct ext2_inode inode; 1196 ext2_ino_t inode_num; 1197 int i; 1198 unsigned char *frag, *fsize; 1199 char buf[80]; 1200 int os; 1201 const char *hex_format = "0x%x"; 1202 const char *octal_format = "0%o"; 1203 const char *decimal_format = "%d"; 1204 const char *unsignedlong_format = "%lu"; 1205 1206 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1207 return; 1208 1209 os = current_fs->super->s_creator_os; 1210 1211 if (debugfs_read_inode(inode_num, &inode, argv[1])) 1212 return; 1213 1214 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode); 1215 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid); 1216 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid); 1217 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size); 1218 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime); 1219 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime); 1220 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime); 1221 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime); 1222 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count); 1223 if (os == EXT2_OS_LINUX) 1224 modify_u16(argv[0], "Block count high", unsignedlong_format, 1225 &inode.osd2.linux2.l_i_blocks_hi); 1226 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks); 1227 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags); 1228 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation); 1229#if 0 1230 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1); 1231#endif 1232 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl); 1233 if (LINUX_S_ISDIR(inode.i_mode)) 1234 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl); 1235 else 1236 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high); 1237 1238 if (os == EXT2_OS_HURD) 1239 modify_u32(argv[0], "Translator Block", 1240 decimal_format, &inode.osd1.hurd1.h_i_translator); 1241 1242 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr); 1243 switch (os) { 1244 case EXT2_OS_HURD: 1245 frag = &inode.osd2.hurd2.h_i_frag; 1246 fsize = &inode.osd2.hurd2.h_i_fsize; 1247 break; 1248 default: 1249 frag = fsize = 0; 1250 } 1251 if (frag) 1252 modify_u8(argv[0], "Fragment number", decimal_format, frag); 1253 if (fsize) 1254 modify_u8(argv[0], "Fragment size", decimal_format, fsize); 1255 1256 for (i=0; i < EXT2_NDIR_BLOCKS; i++) { 1257 sprintf(buf, "Direct Block #%d", i); 1258 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]); 1259 } 1260 modify_u32(argv[0], "Indirect Block", decimal_format, 1261 &inode.i_block[EXT2_IND_BLOCK]); 1262 modify_u32(argv[0], "Double Indirect Block", decimal_format, 1263 &inode.i_block[EXT2_DIND_BLOCK]); 1264 modify_u32(argv[0], "Triple Indirect Block", decimal_format, 1265 &inode.i_block[EXT2_TIND_BLOCK]); 1266 if (debugfs_write_inode(inode_num, &inode, argv[1])) 1267 return; 1268} 1269#endif /* READ_ONLY */ 1270 1271void do_change_working_dir(int argc, char *argv[]) 1272{ 1273 ext2_ino_t inode; 1274 int retval; 1275 1276 if (common_inode_args_process(argc, argv, &inode, 0)) 1277 return; 1278 1279 retval = ext2fs_check_directory(current_fs, inode); 1280 if (retval) { 1281 com_err(argv[1], retval, 0); 1282 return; 1283 } 1284 cwd = inode; 1285 return; 1286} 1287 1288void do_print_working_directory(int argc, char *argv[]) 1289{ 1290 int retval; 1291 char *pathname = NULL; 1292 1293 if (common_args_process(argc, argv, 1, 1, 1294 "print_working_directory", "", 0)) 1295 return; 1296 1297 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname); 1298 if (retval) { 1299 com_err(argv[0], retval, 1300 "while trying to get pathname of cwd"); 1301 } 1302 printf("[pwd] INODE: %6u PATH: %s\n", 1303 cwd, pathname ? pathname : "NULL"); 1304 if (pathname) { 1305 free(pathname); 1306 pathname = NULL; 1307 } 1308 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname); 1309 if (retval) { 1310 com_err(argv[0], retval, 1311 "while trying to get pathname of root"); 1312 } 1313 printf("[root] INODE: %6u PATH: %s\n", 1314 root, pathname ? pathname : "NULL"); 1315 if (pathname) { 1316 free(pathname); 1317 pathname = NULL; 1318 } 1319 return; 1320} 1321 1322#ifndef READ_ONLY 1323static void make_link(char *sourcename, char *destname) 1324{ 1325 ext2_ino_t ino; 1326 struct ext2_inode inode; 1327 int retval; 1328 ext2_ino_t dir; 1329 char *dest, *cp, *base_name; 1330 1331 /* 1332 * Get the source inode 1333 */ 1334 ino = string_to_inode(sourcename); 1335 if (!ino) 1336 return; 1337 base_name = strrchr(sourcename, '/'); 1338 if (base_name) 1339 base_name++; 1340 else 1341 base_name = sourcename; 1342 /* 1343 * Figure out the destination. First see if it exists and is 1344 * a directory. 1345 */ 1346 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir))) 1347 dest = base_name; 1348 else { 1349 /* 1350 * OK, it doesn't exist. See if it is 1351 * '<dir>/basename' or 'basename' 1352 */ 1353 cp = strrchr(destname, '/'); 1354 if (cp) { 1355 *cp = 0; 1356 dir = string_to_inode(destname); 1357 if (!dir) 1358 return; 1359 dest = cp+1; 1360 } else { 1361 dir = cwd; 1362 dest = destname; 1363 } 1364 } 1365 1366 if (debugfs_read_inode(ino, &inode, sourcename)) 1367 return; 1368 1369 retval = ext2fs_link(current_fs, dir, dest, ino, 1370 ext2_file_type(inode.i_mode)); 1371 if (retval) 1372 com_err("make_link", retval, 0); 1373 return; 1374} 1375 1376 1377void do_link(int argc, char *argv[]) 1378{ 1379 if (common_args_process(argc, argv, 3, 3, "link", 1380 "<source file> <dest_name>", CHECK_FS_RW)) 1381 return; 1382 1383 make_link(argv[1], argv[2]); 1384} 1385 1386static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 1387 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1388 blk64_t ref_block EXT2FS_ATTR((unused)), 1389 int ref_offset EXT2FS_ATTR((unused)), 1390 void *private EXT2FS_ATTR((unused))) 1391{ 1392 blk64_t block; 1393 1394 block = *blocknr; 1395 ext2fs_block_alloc_stats2(fs, block, +1); 1396 return 0; 1397} 1398 1399void do_undel(int argc, char *argv[]) 1400{ 1401 ext2_ino_t ino; 1402 struct ext2_inode inode; 1403 1404 if (common_args_process(argc, argv, 2, 3, "undelete", 1405 "<inode_num> [dest_name]", 1406 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1407 return; 1408 1409 ino = string_to_inode(argv[1]); 1410 if (!ino) 1411 return; 1412 1413 if (debugfs_read_inode(ino, &inode, argv[1])) 1414 return; 1415 1416 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) { 1417 com_err(argv[1], 0, "Inode is not marked as deleted"); 1418 return; 1419 } 1420 1421 /* 1422 * XXX this function doesn't handle changing the links count on the 1423 * parent directory when undeleting a directory. 1424 */ 1425 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1; 1426 inode.i_dtime = 0; 1427 1428 if (debugfs_write_inode(ino, &inode, argv[0])) 1429 return; 1430 1431 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL, 1432 mark_blocks_proc, NULL); 1433 1434 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0); 1435 1436 if (argc > 2) 1437 make_link(argv[1], argv[2]); 1438} 1439 1440static void unlink_file_by_name(char *filename) 1441{ 1442 int retval; 1443 ext2_ino_t dir; 1444 char *base_name; 1445 1446 base_name = strrchr(filename, '/'); 1447 if (base_name) { 1448 *base_name++ = '\0'; 1449 dir = string_to_inode(filename); 1450 if (!dir) 1451 return; 1452 } else { 1453 dir = cwd; 1454 base_name = filename; 1455 } 1456 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0); 1457 if (retval) 1458 com_err("unlink_file_by_name", retval, 0); 1459 return; 1460} 1461 1462void do_unlink(int argc, char *argv[]) 1463{ 1464 if (common_args_process(argc, argv, 2, 2, "link", 1465 "<pathname>", CHECK_FS_RW)) 1466 return; 1467 1468 unlink_file_by_name(argv[1]); 1469} 1470#endif /* READ_ONLY */ 1471 1472void do_find_free_block(int argc, char *argv[]) 1473{ 1474 blk64_t free_blk, goal, first_free = 0; 1475 int count; 1476 errcode_t retval; 1477 char *tmp; 1478 1479 if ((argc > 3) || (argc==2 && *argv[1] == '?')) { 1480 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]"); 1481 return; 1482 } 1483 if (check_fs_open(argv[0])) 1484 return; 1485 1486 if (argc > 1) { 1487 count = strtol(argv[1],&tmp,0); 1488 if (*tmp) { 1489 com_err(argv[0], 0, "Bad count - %s", argv[1]); 1490 return; 1491 } 1492 } else 1493 count = 1; 1494 1495 if (argc > 2) { 1496 goal = strtol(argv[2], &tmp, 0); 1497 if (*tmp) { 1498 com_err(argv[0], 0, "Bad goal - %s", argv[1]); 1499 return; 1500 } 1501 } 1502 else 1503 goal = current_fs->super->s_first_data_block; 1504 1505 printf("Free blocks found: "); 1506 free_blk = goal - 1; 1507 while (count-- > 0) { 1508 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0, 1509 &free_blk); 1510 if (first_free) { 1511 if (first_free == free_blk) 1512 break; 1513 } else 1514 first_free = free_blk; 1515 if (retval) { 1516 com_err("ext2fs_new_block", retval, 0); 1517 return; 1518 } else 1519 printf("%llu ", free_blk); 1520 } 1521 printf("\n"); 1522} 1523 1524void do_find_free_inode(int argc, char *argv[]) 1525{ 1526 ext2_ino_t free_inode, dir; 1527 int mode; 1528 int retval; 1529 char *tmp; 1530 1531 if (argc > 3 || (argc>1 && *argv[1] == '?')) { 1532 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]"); 1533 return; 1534 } 1535 if (check_fs_open(argv[0])) 1536 return; 1537 1538 if (argc > 1) { 1539 dir = strtol(argv[1], &tmp, 0); 1540 if (*tmp) { 1541 com_err(argv[0], 0, "Bad dir - %s", argv[1]); 1542 return; 1543 } 1544 } 1545 else 1546 dir = root; 1547 if (argc > 2) { 1548 mode = strtol(argv[2], &tmp, 0); 1549 if (*tmp) { 1550 com_err(argv[0], 0, "Bad mode - %s", argv[2]); 1551 return; 1552 } 1553 } else 1554 mode = 010755; 1555 1556 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode); 1557 if (retval) 1558 com_err("ext2fs_new_inode", retval, 0); 1559 else 1560 printf("Free inode found: %u\n", free_inode); 1561} 1562 1563#ifndef READ_ONLY 1564static errcode_t copy_file(int fd, ext2_ino_t newfile) 1565{ 1566 ext2_file_t e2_file; 1567 errcode_t retval; 1568 int got; 1569 unsigned int written; 1570 char buf[8192]; 1571 char *ptr; 1572 1573 retval = ext2fs_file_open(current_fs, newfile, 1574 EXT2_FILE_WRITE, &e2_file); 1575 if (retval) 1576 return retval; 1577 1578 while (1) { 1579 got = read(fd, buf, sizeof(buf)); 1580 if (got == 0) 1581 break; 1582 if (got < 0) { 1583 retval = errno; 1584 goto fail; 1585 } 1586 ptr = buf; 1587 while (got > 0) { 1588 retval = ext2fs_file_write(e2_file, ptr, 1589 got, &written); 1590 if (retval) 1591 goto fail; 1592 1593 got -= written; 1594 ptr += written; 1595 } 1596 } 1597 retval = ext2fs_file_close(e2_file); 1598 return retval; 1599 1600fail: 1601 (void) ext2fs_file_close(e2_file); 1602 return retval; 1603} 1604 1605 1606void do_write(int argc, char *argv[]) 1607{ 1608 int fd; 1609 struct stat statbuf; 1610 ext2_ino_t newfile; 1611 errcode_t retval; 1612 struct ext2_inode inode; 1613 1614 if (common_args_process(argc, argv, 3, 3, "write", 1615 "<native file> <new file>", CHECK_FS_RW)) 1616 return; 1617 1618 fd = open(argv[1], O_RDONLY); 1619 if (fd < 0) { 1620 com_err(argv[1], errno, 0); 1621 return; 1622 } 1623 if (fstat(fd, &statbuf) < 0) { 1624 com_err(argv[1], errno, 0); 1625 close(fd); 1626 return; 1627 } 1628 1629 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile); 1630 if (retval == 0) { 1631 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]); 1632 close(fd); 1633 return; 1634 } 1635 1636 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1637 if (retval) { 1638 com_err(argv[0], retval, 0); 1639 close(fd); 1640 return; 1641 } 1642 printf("Allocated inode: %u\n", newfile); 1643 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1644 EXT2_FT_REG_FILE); 1645 if (retval == EXT2_ET_DIR_NO_SPACE) { 1646 retval = ext2fs_expand_dir(current_fs, cwd); 1647 if (retval) { 1648 com_err(argv[0], retval, "while expanding directory"); 1649 close(fd); 1650 return; 1651 } 1652 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1653 EXT2_FT_REG_FILE); 1654 } 1655 if (retval) { 1656 com_err(argv[2], retval, 0); 1657 close(fd); 1658 return; 1659 } 1660 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1661 com_err(argv[0], 0, "Warning: inode already set"); 1662 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0); 1663 memset(&inode, 0, sizeof(inode)); 1664 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG; 1665 inode.i_atime = inode.i_ctime = inode.i_mtime = 1666 current_fs->now ? current_fs->now : time(0); 1667 inode.i_links_count = 1; 1668 inode.i_size = statbuf.st_size; 1669 if (current_fs->super->s_feature_incompat & 1670 EXT3_FEATURE_INCOMPAT_EXTENTS) 1671 inode.i_flags |= EXT4_EXTENTS_FL; 1672 if (debugfs_write_new_inode(newfile, &inode, argv[0])) { 1673 close(fd); 1674 return; 1675 } 1676 if (LINUX_S_ISREG(inode.i_mode)) { 1677 retval = copy_file(fd, newfile); 1678 if (retval) 1679 com_err("copy_file", retval, 0); 1680 } 1681 close(fd); 1682} 1683 1684void do_mknod(int argc, char *argv[]) 1685{ 1686 unsigned long mode, major, minor; 1687 ext2_ino_t newfile; 1688 errcode_t retval; 1689 struct ext2_inode inode; 1690 int filetype, nr; 1691 1692 if (check_fs_open(argv[0])) 1693 return; 1694 if (argc < 3 || argv[2][1]) { 1695 usage: 1696 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]"); 1697 return; 1698 } 1699 mode = minor = major = 0; 1700 switch (argv[2][0]) { 1701 case 'p': 1702 mode = LINUX_S_IFIFO; 1703 filetype = EXT2_FT_FIFO; 1704 nr = 3; 1705 break; 1706 case 'c': 1707 mode = LINUX_S_IFCHR; 1708 filetype = EXT2_FT_CHRDEV; 1709 nr = 5; 1710 break; 1711 case 'b': 1712 mode = LINUX_S_IFBLK; 1713 filetype = EXT2_FT_BLKDEV; 1714 nr = 5; 1715 break; 1716 default: 1717 filetype = 0; 1718 nr = 0; 1719 } 1720 if (nr == 5) { 1721 major = strtoul(argv[3], argv+3, 0); 1722 minor = strtoul(argv[4], argv+4, 0); 1723 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0]) 1724 nr = 0; 1725 } 1726 if (argc != nr) 1727 goto usage; 1728 if (check_fs_read_write(argv[0])) 1729 return; 1730 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1731 if (retval) { 1732 com_err(argv[0], retval, 0); 1733 return; 1734 } 1735 printf("Allocated inode: %u\n", newfile); 1736 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype); 1737 if (retval == EXT2_ET_DIR_NO_SPACE) { 1738 retval = ext2fs_expand_dir(current_fs, cwd); 1739 if (retval) { 1740 com_err(argv[0], retval, "while expanding directory"); 1741 return; 1742 } 1743 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, 1744 filetype); 1745 } 1746 if (retval) { 1747 com_err(argv[1], retval, 0); 1748 return; 1749 } 1750 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1751 com_err(argv[0], 0, "Warning: inode already set"); 1752 ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile); 1753 ext2fs_mark_ib_dirty(current_fs); 1754 memset(&inode, 0, sizeof(inode)); 1755 inode.i_mode = mode; 1756 inode.i_atime = inode.i_ctime = inode.i_mtime = 1757 current_fs->now ? current_fs->now : time(0); 1758 if ((major < 256) && (minor < 256)) { 1759 inode.i_block[0] = major*256+minor; 1760 inode.i_block[1] = 0; 1761 } else { 1762 inode.i_block[0] = 0; 1763 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); 1764 } 1765 inode.i_links_count = 1; 1766 if (debugfs_write_new_inode(newfile, &inode, argv[0])) 1767 return; 1768} 1769 1770void do_mkdir(int argc, char *argv[]) 1771{ 1772 char *cp; 1773 ext2_ino_t parent; 1774 char *name; 1775 errcode_t retval; 1776 1777 if (common_args_process(argc, argv, 2, 2, "mkdir", 1778 "<filename>", CHECK_FS_RW)) 1779 return; 1780 1781 cp = strrchr(argv[1], '/'); 1782 if (cp) { 1783 *cp = 0; 1784 parent = string_to_inode(argv[1]); 1785 if (!parent) { 1786 com_err(argv[1], ENOENT, 0); 1787 return; 1788 } 1789 name = cp+1; 1790 } else { 1791 parent = cwd; 1792 name = argv[1]; 1793 } 1794 1795try_again: 1796 retval = ext2fs_mkdir(current_fs, parent, 0, name); 1797 if (retval == EXT2_ET_DIR_NO_SPACE) { 1798 retval = ext2fs_expand_dir(current_fs, parent); 1799 if (retval) { 1800 com_err(argv[0], retval, "while expanding directory"); 1801 return; 1802 } 1803 goto try_again; 1804 } 1805 if (retval) { 1806 com_err("ext2fs_mkdir", retval, 0); 1807 return; 1808 } 1809 1810} 1811 1812static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 1813 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1814 blk64_t ref_block EXT2FS_ATTR((unused)), 1815 int ref_offset EXT2FS_ATTR((unused)), 1816 void *private EXT2FS_ATTR((unused))) 1817{ 1818 blk64_t block; 1819 1820 block = *blocknr; 1821 ext2fs_block_alloc_stats2(fs, block, -1); 1822 return 0; 1823} 1824 1825static void kill_file_by_inode(ext2_ino_t inode) 1826{ 1827 struct ext2_inode inode_buf; 1828 1829 if (debugfs_read_inode(inode, &inode_buf, 0)) 1830 return; 1831 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0); 1832 if (debugfs_write_inode(inode, &inode_buf, 0)) 1833 return; 1834 if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) 1835 return; 1836 1837 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 1838 release_blocks_proc, NULL); 1839 printf("\n"); 1840 ext2fs_inode_alloc_stats2(current_fs, inode, -1, 1841 LINUX_S_ISDIR(inode_buf.i_mode)); 1842} 1843 1844 1845void do_kill_file(int argc, char *argv[]) 1846{ 1847 ext2_ino_t inode_num; 1848 1849 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1850 return; 1851 1852 kill_file_by_inode(inode_num); 1853} 1854 1855void do_rm(int argc, char *argv[]) 1856{ 1857 int retval; 1858 ext2_ino_t inode_num; 1859 struct ext2_inode inode; 1860 1861 if (common_args_process(argc, argv, 2, 2, "rm", 1862 "<filename>", CHECK_FS_RW)) 1863 return; 1864 1865 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1866 if (retval) { 1867 com_err(argv[0], retval, "while trying to resolve filename"); 1868 return; 1869 } 1870 1871 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1872 return; 1873 1874 if (LINUX_S_ISDIR(inode.i_mode)) { 1875 com_err(argv[0], 0, "file is a directory"); 1876 return; 1877 } 1878 1879 --inode.i_links_count; 1880 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1881 return; 1882 1883 unlink_file_by_name(argv[1]); 1884 if (inode.i_links_count == 0) 1885 kill_file_by_inode(inode_num); 1886} 1887 1888struct rd_struct { 1889 ext2_ino_t parent; 1890 int empty; 1891}; 1892 1893static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)), 1894 int entry EXT2FS_ATTR((unused)), 1895 struct ext2_dir_entry *dirent, 1896 int offset EXT2FS_ATTR((unused)), 1897 int blocksize EXT2FS_ATTR((unused)), 1898 char *buf EXT2FS_ATTR((unused)), 1899 void *private) 1900{ 1901 struct rd_struct *rds = (struct rd_struct *) private; 1902 1903 if (dirent->inode == 0) 1904 return 0; 1905 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.')) 1906 return 0; 1907 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') && 1908 (dirent->name[1] == '.')) { 1909 rds->parent = dirent->inode; 1910 return 0; 1911 } 1912 rds->empty = 0; 1913 return 0; 1914} 1915 1916void do_rmdir(int argc, char *argv[]) 1917{ 1918 int retval; 1919 ext2_ino_t inode_num; 1920 struct ext2_inode inode; 1921 struct rd_struct rds; 1922 1923 if (common_args_process(argc, argv, 2, 2, "rmdir", 1924 "<filename>", CHECK_FS_RW)) 1925 return; 1926 1927 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1928 if (retval) { 1929 com_err(argv[0], retval, "while trying to resolve filename"); 1930 return; 1931 } 1932 1933 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1934 return; 1935 1936 if (!LINUX_S_ISDIR(inode.i_mode)) { 1937 com_err(argv[0], 0, "file is not a directory"); 1938 return; 1939 } 1940 1941 rds.parent = 0; 1942 rds.empty = 1; 1943 1944 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0, 1945 0, rmdir_proc, &rds); 1946 if (retval) { 1947 com_err(argv[0], retval, "while iterating over directory"); 1948 return; 1949 } 1950 if (rds.empty == 0) { 1951 com_err(argv[0], 0, "directory not empty"); 1952 return; 1953 } 1954 1955 inode.i_links_count = 0; 1956 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1957 return; 1958 1959 unlink_file_by_name(argv[1]); 1960 kill_file_by_inode(inode_num); 1961 1962 if (rds.parent) { 1963 if (debugfs_read_inode(rds.parent, &inode, argv[0])) 1964 return; 1965 if (inode.i_links_count > 1) 1966 inode.i_links_count--; 1967 if (debugfs_write_inode(rds.parent, &inode, argv[0])) 1968 return; 1969 } 1970} 1971#endif /* READ_ONLY */ 1972 1973void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)), 1974 char *argv[] EXT2FS_ATTR((unused))) 1975{ 1976 FILE *out = stdout; 1977 1978 if (current_fs) 1979 fprintf(out, "Open mode: read-%s\n", 1980 current_fs->flags & EXT2_FLAG_RW ? "write" : "only"); 1981 fprintf(out, "Filesystem in use: %s\n", 1982 current_fs ? current_fs->device_name : "--none--"); 1983} 1984 1985#ifndef READ_ONLY 1986void do_expand_dir(int argc, char *argv[]) 1987{ 1988 ext2_ino_t inode; 1989 int retval; 1990 1991 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 1992 return; 1993 1994 retval = ext2fs_expand_dir(current_fs, inode); 1995 if (retval) 1996 com_err("ext2fs_expand_dir", retval, 0); 1997 return; 1998} 1999 2000void do_features(int argc, char *argv[]) 2001{ 2002 int i; 2003 2004 if (check_fs_open(argv[0])) 2005 return; 2006 2007 if ((argc != 1) && check_fs_read_write(argv[0])) 2008 return; 2009 for (i=1; i < argc; i++) { 2010 if (e2p_edit_feature(argv[i], 2011 ¤t_fs->super->s_feature_compat, 0)) 2012 com_err(argv[0], 0, "Unknown feature: %s\n", 2013 argv[i]); 2014 else 2015 ext2fs_mark_super_dirty(current_fs); 2016 } 2017 print_features(current_fs->super, stdout); 2018} 2019#endif /* READ_ONLY */ 2020 2021void do_bmap(int argc, char *argv[]) 2022{ 2023 ext2_ino_t ino; 2024 blk64_t blk, pblk; 2025 int err; 2026 errcode_t errcode; 2027 2028 if (common_args_process(argc, argv, 3, 3, argv[0], 2029 "<file> logical_blk", 0)) 2030 return; 2031 2032 ino = string_to_inode(argv[1]); 2033 if (!ino) 2034 return; 2035 blk = parse_ulong(argv[2], argv[0], "logical_block", &err); 2036 2037 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk); 2038 if (errcode) { 2039 com_err("argv[0]", errcode, 2040 "while mapping logical block %llu\n", blk); 2041 return; 2042 } 2043 printf("%llu\n", pblk); 2044} 2045 2046void do_imap(int argc, char *argv[]) 2047{ 2048 ext2_ino_t ino; 2049 unsigned long group, block, block_nr, offset; 2050 2051 if (common_args_process(argc, argv, 2, 2, argv[0], 2052 "<file>", 0)) 2053 return; 2054 ino = string_to_inode(argv[1]); 2055 if (!ino) 2056 return; 2057 2058 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super); 2059 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) * 2060 EXT2_INODE_SIZE(current_fs->super); 2061 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super); 2062 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) { 2063 com_err(argv[0], 0, "Inode table for group %lu is missing\n", 2064 group); 2065 return; 2066 } 2067 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) + 2068 block; 2069 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1); 2070 2071 printf("Inode %d is part of block group %lu\n" 2072 "\tlocated at block %lu, offset 0x%04lx\n", ino, group, 2073 block_nr, offset); 2074 2075} 2076 2077#ifndef READ_ONLY 2078void do_set_current_time(int argc, char *argv[]) 2079{ 2080 time_t now; 2081 2082 if (common_args_process(argc, argv, 2, 2, argv[0], 2083 "<time>", 0)) 2084 return; 2085 2086 now = string_to_time(argv[1]); 2087 if (now == ((time_t) -1)) { 2088 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n", 2089 argv[1]); 2090 return; 2091 2092 } else { 2093 printf("Setting current time to %s\n", time_to_string(now)); 2094 current_fs->now = now; 2095 } 2096} 2097#endif /* READ_ONLY */ 2098 2099static int find_supp_feature(__u32 *supp, int feature_type, char *name) 2100{ 2101 int compat, bit, ret; 2102 unsigned int feature_mask; 2103 2104 if (name) { 2105 if (feature_type == E2P_FS_FEATURE) 2106 ret = e2p_string2feature(name, &compat, &feature_mask); 2107 else 2108 ret = e2p_jrnl_string2feature(name, &compat, 2109 &feature_mask); 2110 if (ret) 2111 return ret; 2112 2113 if (!(supp[compat] & feature_mask)) 2114 return 1; 2115 } else { 2116 for (compat = 0; compat < 3; compat++) { 2117 for (bit = 0, feature_mask = 1; bit < 32; 2118 bit++, feature_mask <<= 1) { 2119 if (supp[compat] & feature_mask) { 2120 if (feature_type == E2P_FS_FEATURE) 2121 fprintf(stdout, " %s", 2122 e2p_feature2string(compat, 2123 feature_mask)); 2124 else 2125 fprintf(stdout, " %s", 2126 e2p_jrnl_feature2string(compat, 2127 feature_mask)); 2128 } 2129 } 2130 } 2131 fprintf(stdout, "\n"); 2132 } 2133 2134 return 0; 2135} 2136 2137void do_supported_features(int argc, char *argv[]) 2138{ 2139 int ret; 2140 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP, 2141 EXT2_LIB_FEATURE_INCOMPAT_SUPP, 2142 EXT2_LIB_FEATURE_RO_COMPAT_SUPP }; 2143 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES, 2144 JFS_KNOWN_INCOMPAT_FEATURES, 2145 JFS_KNOWN_ROCOMPAT_FEATURES }; 2146 2147 if (argc > 1) { 2148 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]); 2149 if (ret) { 2150 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, 2151 argv[1]); 2152 } 2153 if (ret) 2154 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]); 2155 else 2156 fprintf(stdout, "Supported feature: %s\n", argv[1]); 2157 } else { 2158 fprintf(stdout, "Supported features:"); 2159 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL); 2160 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL); 2161 } 2162} 2163 2164#ifndef READ_ONLY 2165void do_punch(int argc, char *argv[]) 2166{ 2167 ext2_ino_t ino; 2168 blk64_t start, end; 2169 int err; 2170 errcode_t errcode; 2171 2172 if (common_args_process(argc, argv, 3, 4, argv[0], 2173 "<file> start_blk [end_blk]", 2174 CHECK_FS_RW | CHECK_FS_BITMAPS)) 2175 return; 2176 2177 ino = string_to_inode(argv[1]); 2178 if (!ino) 2179 return; 2180 start = parse_ulong(argv[2], argv[0], "logical_block", &err); 2181 if (argc == 4) 2182 end = parse_ulong(argv[3], argv[0], "logical_block", &err); 2183 else 2184 end = ~0; 2185 2186 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end); 2187 2188 if (errcode) { 2189 com_err(argv[0], errcode, 2190 "while truncating inode %u from %llu to %llu\n", ino, 2191 (unsigned long long) start, (unsigned long long) end); 2192 return; 2193 } 2194} 2195#endif /* READ_ONLY */ 2196 2197void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[]) 2198{ 2199 struct ext2_super_block *sb; 2200 struct mmp_struct *mmp_s; 2201 time_t t; 2202 errcode_t retval = 0; 2203 2204 if (check_fs_open(argv[0])) 2205 return; 2206 2207 sb = current_fs->super; 2208 if (sb->s_mmp_block <= sb->s_first_data_block || 2209 sb->s_mmp_block >= ext2fs_blocks_count(sb)) { 2210 com_err(argv[0], EXT2_ET_MMP_BAD_BLOCK, "while dumping it.\n"); 2211 return; 2212 } 2213 2214 if (current_fs->mmp_buf == NULL) { 2215 retval = ext2fs_get_mem(current_fs->blocksize, 2216 ¤t_fs->mmp_buf); 2217 if (retval) { 2218 com_err(argv[0], retval, "allocating MMP buffer.\n"); 2219 return; 2220 } 2221 } 2222 2223 mmp_s = current_fs->mmp_buf; 2224 2225 retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block, 2226 current_fs->mmp_buf); 2227 if (retval) { 2228 com_err(argv[0], retval, "reading MMP block.\n"); 2229 return; 2230 } 2231 2232 t = mmp_s->mmp_time; 2233 fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block); 2234 fprintf(stdout, "update_interval: %d\n", 2235 current_fs->super->s_mmp_update_interval); 2236 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval); 2237 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq); 2238 fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t)); 2239 fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename); 2240 fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname); 2241 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic); 2242} 2243 2244static int source_file(const char *cmd_file, int sci_idx) 2245{ 2246 FILE *f; 2247 char buf[256]; 2248 char *cp; 2249 int exit_status = 0; 2250 int retval; 2251 2252 if (strcmp(cmd_file, "-") == 0) 2253 f = stdin; 2254 else { 2255 f = fopen(cmd_file, "r"); 2256 if (!f) { 2257 perror(cmd_file); 2258 exit(1); 2259 } 2260 } 2261 fflush(stdout); 2262 fflush(stderr); 2263 setbuf(stdout, NULL); 2264 setbuf(stderr, NULL); 2265 while (!feof(f)) { 2266 if (fgets(buf, sizeof(buf), f) == NULL) 2267 break; 2268 cp = strchr(buf, '\n'); 2269 if (cp) 2270 *cp = 0; 2271 cp = strchr(buf, '\r'); 2272 if (cp) 2273 *cp = 0; 2274 printf("debugfs: %s\n", buf); 2275 retval = ss_execute_line(sci_idx, buf); 2276 if (retval) { 2277 ss_perror(sci_idx, retval, buf); 2278 exit_status++; 2279 } 2280 } 2281 if (f != stdin) 2282 fclose(f); 2283 return exit_status; 2284} 2285 2286int main(int argc, char **argv) 2287{ 2288 int retval; 2289 int sci_idx; 2290 const char *usage = 2291 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] " 2292 "[-R request] [-V] [" 2293#ifndef READ_ONLY 2294 "[-w] " 2295#endif 2296 "[-c] device]"; 2297 int c; 2298 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 2299 char *request = 0; 2300 int exit_status = 0; 2301 char *cmd_file = 0; 2302 blk64_t superblock = 0; 2303 blk64_t blocksize = 0; 2304 int catastrophic = 0; 2305 char *data_filename = 0; 2306#ifdef READ_ONLY 2307 const char *opt_string = "icR:f:b:s:Vd:D"; 2308#else 2309 const char *opt_string = "iwcR:f:b:s:Vd:D"; 2310#endif 2311 2312 if (debug_prog_name == 0) 2313#ifdef READ_ONLY 2314 debug_prog_name = "rdebugfs"; 2315#else 2316 debug_prog_name = "debugfs"; 2317#endif 2318 add_error_table(&et_ext2_error_table); 2319 fprintf (stderr, "%s %s (%s)\n", debug_prog_name, 2320 E2FSPROGS_VERSION, E2FSPROGS_DATE); 2321 2322 while ((c = getopt (argc, argv, opt_string)) != EOF) { 2323 switch (c) { 2324 case 'R': 2325 request = optarg; 2326 break; 2327 case 'f': 2328 cmd_file = optarg; 2329 break; 2330 case 'd': 2331 data_filename = optarg; 2332 break; 2333 case 'i': 2334 open_flags |= EXT2_FLAG_IMAGE_FILE; 2335 break; 2336#ifndef READ_ONLY 2337 case 'w': 2338 open_flags |= EXT2_FLAG_RW; 2339 break; 2340#endif 2341 case 'D': 2342 open_flags |= EXT2_FLAG_DIRECT_IO; 2343 break; 2344 case 'b': 2345 blocksize = parse_ulong(optarg, argv[0], 2346 "block size", 0); 2347 break; 2348 case 's': 2349 superblock = parse_ulong(optarg, argv[0], 2350 "superblock number", 0); 2351 break; 2352 case 'c': 2353 catastrophic = 1; 2354 break; 2355 case 'V': 2356 /* Print version number and exit */ 2357 fprintf(stderr, "\tUsing %s\n", 2358 error_message(EXT2_ET_BASE)); 2359 exit(0); 2360 default: 2361 com_err(argv[0], 0, usage, debug_prog_name); 2362 return 1; 2363 } 2364 } 2365 if (optind < argc) 2366 open_filesystem(argv[optind], open_flags, 2367 superblock, blocksize, catastrophic, 2368 data_filename); 2369 2370 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL, 2371 &debug_cmds, &retval); 2372 if (retval) { 2373 ss_perror(sci_idx, retval, "creating invocation"); 2374 exit(1); 2375 } 2376 ss_get_readline(sci_idx); 2377 2378 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval); 2379 if (retval) { 2380 ss_perror(sci_idx, retval, "adding standard requests"); 2381 exit (1); 2382 } 2383 if (extra_cmds) 2384 ss_add_request_table (sci_idx, extra_cmds, 1, &retval); 2385 if (retval) { 2386 ss_perror(sci_idx, retval, "adding extra requests"); 2387 exit (1); 2388 } 2389 if (request) { 2390 retval = 0; 2391 retval = ss_execute_line(sci_idx, request); 2392 if (retval) { 2393 ss_perror(sci_idx, retval, request); 2394 exit_status++; 2395 } 2396 } else if (cmd_file) { 2397 exit_status = source_file(cmd_file, sci_idx); 2398 } else { 2399 ss_listen(sci_idx); 2400 } 2401 2402 ss_delete_invocation(sci_idx); 2403 2404 if (current_fs) 2405 close_filesystem(); 2406 2407 remove_error_table(&et_ext2_error_table); 2408 return exit_status; 2409} 2410