debugfs.c revision 4efbac6fed75c29d3d5f1b676b932754653a2ac5
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 "et/com_err.h" 31#include "ss/ss.h" 32#include "debugfs.h" 33#include "uuid/uuid.h" 34#include "e2p/e2p.h" 35 36#include <ext2fs/ext2_ext_attr.h> 37 38#include "../version.h" 39#include "jfs_user.h" 40 41extern ss_request_table debug_cmds; 42ss_request_table *extra_cmds; 43const char *debug_prog_name; 44 45ext2_filsys current_fs = NULL; 46ext2_ino_t root, cwd; 47 48static void open_filesystem(char *device, int open_flags, blk_t superblock, 49 blk_t blocksize, int catastrophic, 50 char *data_filename) 51{ 52 int retval; 53 io_channel data_io = 0; 54 55 if (superblock != 0 && blocksize == 0) { 56 com_err(device, 0, "if you specify the superblock, you must also specify the block size"); 57 current_fs = NULL; 58 return; 59 } 60 61 if (data_filename) { 62 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) { 63 com_err(device, 0, 64 "The -d option is only valid when reading an e2image file"); 65 current_fs = NULL; 66 return; 67 } 68 retval = unix_io_manager->open(data_filename, 0, &data_io); 69 if (retval) { 70 com_err(data_filename, 0, "while opening data source"); 71 current_fs = NULL; 72 return; 73 } 74 } 75 76 if (catastrophic && (open_flags & EXT2_FLAG_RW)) { 77 com_err(device, 0, 78 "opening read-only because of catastrophic mode"); 79 open_flags &= ~EXT2_FLAG_RW; 80 } 81 82 retval = ext2fs_open(device, open_flags, superblock, blocksize, 83 unix_io_manager, ¤t_fs); 84 if (retval) { 85 com_err(device, retval, "while opening filesystem"); 86 current_fs = NULL; 87 return; 88 } 89 90 if (catastrophic) 91 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps"); 92 else { 93 retval = ext2fs_read_inode_bitmap(current_fs); 94 if (retval) { 95 com_err(device, retval, "while reading inode bitmap"); 96 goto errout; 97 } 98 retval = ext2fs_read_block_bitmap(current_fs); 99 if (retval) { 100 com_err(device, retval, "while reading block bitmap"); 101 goto errout; 102 } 103 } 104 105 if (data_io) { 106 retval = ext2fs_set_data_io(current_fs, data_io); 107 if (retval) { 108 com_err(device, retval, 109 "while setting data source"); 110 goto errout; 111 } 112 } 113 114 root = cwd = EXT2_ROOT_INO; 115 return; 116 117errout: 118 retval = ext2fs_close(current_fs); 119 if (retval) 120 com_err(device, retval, "while trying to close filesystem"); 121 current_fs = NULL; 122} 123 124void do_open_filesys(int argc, char **argv) 125{ 126 int c, err; 127 int catastrophic = 0; 128 blk_t superblock = 0; 129 blk_t blocksize = 0; 130 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES; 131 char *data_filename = 0; 132 133 reset_getopt(); 134 while ((c = getopt (argc, argv, "iwfecb:s:d:")) != EOF) { 135 switch (c) { 136 case 'i': 137 open_flags |= EXT2_FLAG_IMAGE_FILE; 138 break; 139 case 'w': 140 open_flags |= EXT2_FLAG_RW; 141 break; 142 case 'f': 143 open_flags |= EXT2_FLAG_FORCE; 144 break; 145 case 'e': 146 open_flags |= EXT2_FLAG_EXCLUSIVE; 147 break; 148 case 'c': 149 catastrophic = 1; 150 break; 151 case 'd': 152 data_filename = optarg; 153 break; 154 case 'b': 155 blocksize = parse_ulong(optarg, argv[0], 156 "block size", &err); 157 if (err) 158 return; 159 break; 160 case 's': 161 superblock = parse_ulong(optarg, argv[0], 162 "superblock number", &err); 163 if (err) 164 return; 165 break; 166 default: 167 goto print_usage; 168 } 169 } 170 if (optind != argc-1) { 171 goto print_usage; 172 } 173 if (check_fs_not_open(argv[0])) 174 return; 175 open_filesystem(argv[optind], open_flags, 176 superblock, blocksize, catastrophic, 177 data_filename); 178 return; 179 180print_usage: 181 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] " 182 "[-c] [-w] <device>\n", argv[0]); 183} 184 185void do_lcd(int argc, char **argv) 186{ 187 if (argc != 2) { 188 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>"); 189 return; 190 } 191 192 if (chdir(argv[1]) == -1) { 193 com_err(argv[0], errno, 194 "while trying to change native directory to %s", 195 argv[1]); 196 return; 197 } 198} 199 200static void close_filesystem(NOARGS) 201{ 202 int retval; 203 204 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) { 205 retval = ext2fs_write_inode_bitmap(current_fs); 206 if (retval) 207 com_err("ext2fs_write_inode_bitmap", retval, 0); 208 } 209 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) { 210 retval = ext2fs_write_block_bitmap(current_fs); 211 if (retval) 212 com_err("ext2fs_write_block_bitmap", retval, 0); 213 } 214 retval = ext2fs_close(current_fs); 215 if (retval) 216 com_err("ext2fs_close", retval, 0); 217 current_fs = NULL; 218 return; 219} 220 221void do_close_filesys(int argc, char **argv) 222{ 223 int c; 224 225 if (check_fs_open(argv[0])) 226 return; 227 228 reset_getopt(); 229 while ((c = getopt (argc, argv, "a")) != EOF) { 230 switch (c) { 231 case 'a': 232 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 233 break; 234 default: 235 goto print_usage; 236 } 237 } 238 239 if (argc > optind) { 240 print_usage: 241 com_err(0, 0, "Usage: close_filesys [-a]"); 242 return; 243 } 244 245 close_filesystem(); 246} 247 248void do_init_filesys(int argc, char **argv) 249{ 250 struct ext2_super_block param; 251 errcode_t retval; 252 int err; 253 254 if (common_args_process(argc, argv, 3, 3, "initialize", 255 "<device> <blocksize>", CHECK_FS_NOTOPEN)) 256 return; 257 258 memset(¶m, 0, sizeof(struct ext2_super_block)); 259 ext2fs_blocks_count_set(¶m, parse_ulong(argv[2], argv[0], 260 "blocks count", &err)); 261 if (err) 262 return; 263 retval = ext2fs_initialize(argv[1], 0, ¶m, 264 unix_io_manager, ¤t_fs); 265 if (retval) { 266 com_err(argv[1], retval, "while initializing filesystem"); 267 current_fs = NULL; 268 return; 269 } 270 root = cwd = EXT2_ROOT_INO; 271 return; 272} 273 274static void print_features(struct ext2_super_block * s, FILE *f) 275{ 276 int i, j, printed=0; 277 __u32 *mask = &s->s_feature_compat, m; 278 279 fputs("Filesystem features:", f); 280 for (i=0; i <3; i++,mask++) { 281 for (j=0,m=1; j < 32; j++, m<<=1) { 282 if (*mask & m) { 283 fprintf(f, " %s", e2p_feature2string(i, m)); 284 printed++; 285 } 286 } 287 } 288 if (printed == 0) 289 fputs("(none)", f); 290 fputs("\n", f); 291} 292 293static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask, 294 const char *str, int *first, FILE *f) 295{ 296 if (ext2fs_bg_flag_test(fs, group, mask)) { 297 if (*first) { 298 fputs(" [", f); 299 *first = 0; 300 } else 301 fputs(", ", f); 302 fputs(str, f); 303 } 304} 305 306void do_show_super_stats(int argc, char *argv[]) 307{ 308 dgrp_t i; 309 FILE *out; 310 struct ext2_group_desc *gdp; 311 int c, header_only = 0; 312 int numdirs = 0, first, gdt_csum; 313 314 reset_getopt(); 315 while ((c = getopt (argc, argv, "h")) != EOF) { 316 switch (c) { 317 case 'h': 318 header_only++; 319 break; 320 default: 321 goto print_usage; 322 } 323 } 324 if (optind != argc) { 325 goto print_usage; 326 } 327 if (check_fs_open(argv[0])) 328 return; 329 out = open_pager(); 330 331 list_super2(current_fs->super, out); 332 for (i=0; i < current_fs->group_desc_count; i++) 333 numdirs += current_fs->group_desc[i].bg_used_dirs_count; 334 fprintf(out, "Directories: %d\n", numdirs); 335 336 if (header_only) { 337 close_pager(out); 338 return; 339 } 340 341 gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, 342 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 343 gdp = ¤t_fs->group_desc[0]; 344 for (i = 0; i < current_fs->group_desc_count; i++, gdp++) { 345 fprintf(out, " Group %2d: block bitmap at %u, " 346 "inode bitmap at %u, " 347 "inode table at %u\n" 348 " %d free %s, " 349 "%d free %s, " 350 "%d used %s%s", 351 i, gdp->bg_block_bitmap, 352 gdp->bg_inode_bitmap, gdp->bg_inode_table, 353 gdp->bg_free_blocks_count, 354 gdp->bg_free_blocks_count != 1 ? "blocks" : "block", 355 gdp->bg_free_inodes_count, 356 gdp->bg_free_inodes_count != 1 ? "inodes" : "inode", 357 gdp->bg_used_dirs_count, 358 gdp->bg_used_dirs_count != 1 ? "directories" 359 : "directory", gdt_csum ? ", " : "\n"); 360 if (gdt_csum) 361 fprintf(out, "%d unused %s\n", 362 gdp->bg_itable_unused, 363 gdp->bg_itable_unused != 1 ? "inodes":"inode"); 364 first = 1; 365 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init", 366 &first, out); 367 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init", 368 &first, out); 369 if (gdt_csum) { 370 fprintf(out, "%sChecksum 0x%04x", 371 first ? " [":", ", gdp->bg_checksum); 372 first = 0; 373 } 374 if (!first) 375 fputs("]\n", out); 376 } 377 close_pager(out); 378 return; 379print_usage: 380 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]); 381} 382 383void do_dirty_filesys(int argc EXT2FS_ATTR((unused)), 384 char **argv EXT2FS_ATTR((unused))) 385{ 386 if (check_fs_open(argv[0])) 387 return; 388 if (check_fs_read_write(argv[0])) 389 return; 390 391 if (argv[1] && !strcmp(argv[1], "-clean")) 392 current_fs->super->s_state |= EXT2_VALID_FS; 393 else 394 current_fs->super->s_state &= ~EXT2_VALID_FS; 395 ext2fs_mark_super_dirty(current_fs); 396} 397 398struct list_blocks_struct { 399 FILE *f; 400 e2_blkcnt_t total; 401 blk_t first_block, last_block; 402 e2_blkcnt_t first_bcnt, last_bcnt; 403 e2_blkcnt_t first; 404}; 405 406static void finish_range(struct list_blocks_struct *lb) 407{ 408 if (lb->first_block == 0) 409 return; 410 if (lb->first) 411 lb->first = 0; 412 else 413 fprintf(lb->f, ", "); 414 if (lb->first_block == lb->last_block) 415 fprintf(lb->f, "(%lld):%u", 416 (long long)lb->first_bcnt, lb->first_block); 417 else 418 fprintf(lb->f, "(%lld-%lld):%u-%u", 419 (long long)lb->first_bcnt, (long long)lb->last_bcnt, 420 lb->first_block, lb->last_block); 421 lb->first_block = 0; 422} 423 424static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 425 blk_t *blocknr, e2_blkcnt_t blockcnt, 426 blk_t ref_block EXT2FS_ATTR((unused)), 427 int ref_offset EXT2FS_ATTR((unused)), 428 void *private) 429{ 430 struct list_blocks_struct *lb = (struct list_blocks_struct *) private; 431 432 lb->total++; 433 if (blockcnt >= 0) { 434 /* 435 * See if we can add on to the existing range (if it exists) 436 */ 437 if (lb->first_block && 438 (lb->last_block+1 == *blocknr) && 439 (lb->last_bcnt+1 == blockcnt)) { 440 lb->last_block = *blocknr; 441 lb->last_bcnt = blockcnt; 442 return 0; 443 } 444 /* 445 * Start a new range. 446 */ 447 finish_range(lb); 448 lb->first_block = lb->last_block = *blocknr; 449 lb->first_bcnt = lb->last_bcnt = blockcnt; 450 return 0; 451 } 452 /* 453 * Not a normal block. Always force a new range. 454 */ 455 finish_range(lb); 456 if (lb->first) 457 lb->first = 0; 458 else 459 fprintf(lb->f, ", "); 460 if (blockcnt == -1) 461 fprintf(lb->f, "(IND):%u", *blocknr); 462 else if (blockcnt == -2) 463 fprintf(lb->f, "(DIND):%u", *blocknr); 464 else if (blockcnt == -3) 465 fprintf(lb->f, "(TIND):%u", *blocknr); 466 return 0; 467} 468 469static void dump_xattr_string(FILE *out, const char *str, int len) 470{ 471 int printable = 0; 472 int i; 473 474 /* check: is string "printable enough?" */ 475 for (i = 0; i < len; i++) 476 if (isprint(str[i])) 477 printable++; 478 479 if (printable <= len*7/8) 480 printable = 0; 481 482 for (i = 0; i < len; i++) 483 if (printable) 484 fprintf(out, isprint(str[i]) ? "%c" : "\\%03o", 485 (unsigned char)str[i]); 486 else 487 fprintf(out, "%02x ", (unsigned char)str[i]); 488} 489 490static void internal_dump_inode_extra(FILE *out, 491 const char *prefix EXT2FS_ATTR((unused)), 492 ext2_ino_t inode_num EXT2FS_ATTR((unused)), 493 struct ext2_inode_large *inode) 494{ 495 struct ext2_ext_attr_entry *entry; 496 __u32 *magic; 497 char *start, *end; 498 unsigned int storage_size; 499 500 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize); 501 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) - 502 EXT2_GOOD_OLD_INODE_SIZE) { 503 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n", 504 inode->i_extra_isize); 505 return; 506 } 507 storage_size = EXT2_INODE_SIZE(current_fs->super) - 508 EXT2_GOOD_OLD_INODE_SIZE - 509 inode->i_extra_isize; 510 magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE + 511 inode->i_extra_isize); 512 if (*magic == EXT2_EXT_ATTR_MAGIC) { 513 fprintf(out, "Extended attributes stored in inode body: \n"); 514 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super); 515 start = (char *) magic + sizeof(__u32); 516 entry = (struct ext2_ext_attr_entry *) start; 517 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) { 518 struct ext2_ext_attr_entry *next = 519 EXT2_EXT_ATTR_NEXT(entry); 520 if (entry->e_value_size > storage_size || 521 (char *) next >= end) { 522 fprintf(out, "invalid EA entry in inode\n"); 523 return; 524 } 525 fprintf(out, " "); 526 dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry), 527 entry->e_name_len); 528 fprintf(out, " = \""); 529 dump_xattr_string(out, start + entry->e_value_offs, 530 entry->e_value_size); 531 fprintf(out, "\" (%u)\n", entry->e_value_size); 532 entry = next; 533 } 534 } 535} 536 537static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode) 538{ 539 struct list_blocks_struct lb; 540 541 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix); 542 lb.total = 0; 543 lb.first_block = 0; 544 lb.f = f; 545 lb.first = 1; 546 ext2fs_block_iterate2(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 547 list_blocks_proc, (void *)&lb); 548 finish_range(&lb); 549 if (lb.total) 550 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total); 551 fprintf(f,"\n"); 552} 553 554static int int_log10(unsigned long long arg) 555{ 556 int l = 0; 557 558 arg = arg / 10; 559 while (arg) { 560 l++; 561 arg = arg / 10; 562 } 563 return l; 564} 565 566#define DUMP_LEAF_EXTENTS 0x01 567#define DUMP_NODE_EXTENTS 0x02 568#define DUMP_EXTENT_TABLE 0x04 569 570static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino, 571 int flags, int logical_width, int physical_width) 572{ 573 ext2_extent_handle_t handle; 574 struct ext2fs_extent extent; 575 struct ext2_extent_info info; 576 int op = EXT2_EXTENT_ROOT; 577 unsigned int printed = 0; 578 errcode_t errcode; 579 580 errcode = ext2fs_extent_open(current_fs, ino, &handle); 581 if (errcode) 582 return; 583 584 if (flags & DUMP_EXTENT_TABLE) 585 fprintf(f, "Level Entries %*s %*s Length Flags\n", 586 (logical_width*2)+3, "Logical", 587 (physical_width*2)+3, "Physical"); 588 else 589 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix); 590 591 while (1) { 592 errcode = ext2fs_extent_get(handle, op, &extent); 593 594 if (errcode) 595 break; 596 597 op = EXT2_EXTENT_NEXT; 598 599 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 600 continue; 601 602 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) { 603 if ((flags & DUMP_LEAF_EXTENTS) == 0) 604 continue; 605 } else { 606 if ((flags & DUMP_NODE_EXTENTS) == 0) 607 continue; 608 } 609 610 errcode = ext2fs_extent_get_info(handle, &info); 611 if (errcode) 612 continue; 613 614 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) { 615 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 616 continue; 617 618 if (flags & DUMP_EXTENT_TABLE) { 619 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 620 "%*llu%*s %6u\n", 621 info.curr_level, info.max_depth, 622 info.curr_entry, info.num_entries, 623 logical_width, 624 extent.e_lblk, 625 logical_width, 626 extent.e_lblk + (extent.e_len - 1), 627 physical_width, 628 extent.e_pblk, 629 physical_width+3, "", extent.e_len); 630 continue; 631 } 632 633 fprintf(f, "%s(NODE #%d, %lld-%lld, blk %lld)", 634 printed ? ", " : "", 635 info.curr_entry, 636 extent.e_lblk, 637 extent.e_lblk + (extent.e_len - 1), 638 extent.e_pblk); 639 printed = 1; 640 continue; 641 } 642 643 if (flags & DUMP_EXTENT_TABLE) { 644 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 645 "%*llu - %*llu %6u %s\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, 655 extent.e_pblk + (extent.e_len - 1), 656 extent.e_len, 657 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 658 "Uninit" : ""); 659 continue; 660 } 661 662 if (extent.e_len == 0) 663 continue; 664 else if (extent.e_len == 1) 665 fprintf(f, 666 "%s(%lld%s): %lld", 667 printed ? ", " : "", 668 extent.e_lblk, 669 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 670 " [uninit]" : "", 671 extent.e_pblk); 672 else 673 fprintf(f, 674 "%s(%lld-%lld%s): %lld-%lld", 675 printed ? ", " : "", 676 extent.e_lblk, 677 extent.e_lblk + (extent.e_len - 1), 678 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 679 " [uninit]" : "", 680 extent.e_pblk, 681 extent.e_pblk + (extent.e_len - 1)); 682 printed = 1; 683 } 684 if (printed) 685 fprintf(f, "\n"); 686} 687 688void internal_dump_inode(FILE *out, const char *prefix, 689 ext2_ino_t inode_num, struct ext2_inode *inode, 690 int do_dump_blocks) 691{ 692 const char *i_type; 693 char frag, fsize; 694 int os = current_fs->super->s_creator_os; 695 struct ext2_inode_large *large_inode; 696 int is_large_inode = 0; 697 698 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 699 is_large_inode = 1; 700 large_inode = (struct ext2_inode_large *) inode; 701 702 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory"; 703 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular"; 704 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink"; 705 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special"; 706 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special"; 707 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO"; 708 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket"; 709 else i_type = "bad type"; 710 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type); 711 fprintf(out, "%sMode: %04o Flags: 0x%x\n", 712 prefix, inode->i_mode & 0777, inode->i_flags); 713 if (is_large_inode && large_inode->i_extra_isize >= 24) { 714 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n", 715 prefix, inode->i_generation, large_inode->i_version_hi, 716 inode->osd1.linux1.l_i_version); 717 } else { 718 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix, 719 inode->i_generation, inode->osd1.linux1.l_i_version); 720 } 721 fprintf(out, "%sUser: %5d Group: %5d Size: ", 722 prefix, inode_uid(*inode), inode_gid(*inode)); 723 if (LINUX_S_ISREG(inode->i_mode)) { 724 unsigned long long i_size = (inode->i_size | 725 ((unsigned long long)inode->i_size_high << 32)); 726 727 fprintf(out, "%llu\n", i_size); 728 } else 729 fprintf(out, "%d\n", inode->i_size); 730 if (os == EXT2_OS_HURD) 731 fprintf(out, 732 "%sFile ACL: %d Directory ACL: %d Translator: %d\n", 733 prefix, 734 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0, 735 inode->osd1.hurd1.h_i_translator); 736 else 737 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n", 738 prefix, 739 inode->i_file_acl | ((long long) 740 (inode->osd2.linux2.l_i_file_acl_high) << 32), 741 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0); 742 if (os == EXT2_OS_LINUX) 743 fprintf(out, "%sLinks: %d Blockcount: %llu\n", 744 prefix, inode->i_links_count, 745 (((unsigned long long) 746 inode->osd2.linux2.l_i_blocks_hi << 32)) + 747 inode->i_blocks); 748 else 749 fprintf(out, "%sLinks: %d Blockcount: %u\n", 750 prefix, inode->i_links_count, inode->i_blocks); 751 switch (os) { 752 case EXT2_OS_HURD: 753 frag = inode->osd2.hurd2.h_i_frag; 754 fsize = inode->osd2.hurd2.h_i_fsize; 755 break; 756 default: 757 frag = fsize = 0; 758 } 759 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n", 760 prefix, inode->i_faddr, frag, fsize); 761 if (is_large_inode && large_inode->i_extra_isize >= 24) { 762 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix, 763 inode->i_ctime, large_inode->i_ctime_extra, 764 time_to_string(inode->i_ctime)); 765 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix, 766 inode->i_atime, large_inode->i_atime_extra, 767 time_to_string(inode->i_atime)); 768 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix, 769 inode->i_mtime, large_inode->i_mtime_extra, 770 time_to_string(inode->i_mtime)); 771 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix, 772 large_inode->i_crtime, large_inode->i_crtime_extra, 773 time_to_string(large_inode->i_crtime)); 774 } else { 775 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime, 776 time_to_string(inode->i_ctime)); 777 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime, 778 time_to_string(inode->i_atime)); 779 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime, 780 time_to_string(inode->i_mtime)); 781 } 782 if (inode->i_dtime) 783 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime, 784 time_to_string(inode->i_dtime)); 785 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 786 internal_dump_inode_extra(out, prefix, inode_num, 787 (struct ext2_inode_large *) inode); 788 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0) 789 fprintf(out, "%sFast_link_dest: %.*s\n", prefix, 790 (int) inode->i_size, (char *)inode->i_block); 791 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) { 792 int major, minor; 793 const char *devnote; 794 795 if (inode->i_block[0]) { 796 major = (inode->i_block[0] >> 8) & 255; 797 minor = inode->i_block[0] & 255; 798 devnote = ""; 799 } else { 800 major = (inode->i_block[1] & 0xfff00) >> 8; 801 minor = ((inode->i_block[1] & 0xff) | 802 ((inode->i_block[1] >> 12) & 0xfff00)); 803 devnote = "(New-style) "; 804 } 805 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n", 806 devnote, major, minor, major, minor); 807 } else if (do_dump_blocks) { 808 if (inode->i_flags & EXT4_EXTENTS_FL) 809 dump_extents(out, prefix, inode_num, 810 DUMP_LEAF_EXTENTS, 0, 0); 811 else 812 dump_blocks(out, prefix, inode_num); 813 } 814} 815 816static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode) 817{ 818 FILE *out; 819 820 out = open_pager(); 821 internal_dump_inode(out, "", inode_num, inode, 1); 822 close_pager(out); 823} 824 825void do_stat(int argc, char *argv[]) 826{ 827 ext2_ino_t inode; 828 struct ext2_inode * inode_buf; 829 830 if (check_fs_open(argv[0])) 831 return; 832 833 inode_buf = (struct ext2_inode *) 834 malloc(EXT2_INODE_SIZE(current_fs->super)); 835 if (!inode_buf) { 836 fprintf(stderr, "do_stat: can't allocate buffer\n"); 837 return; 838 } 839 840 if (common_inode_args_process(argc, argv, &inode, 0)) { 841 free(inode_buf); 842 return; 843 } 844 845 if (debugfs_read_inode_full(inode, inode_buf, argv[0], 846 EXT2_INODE_SIZE(current_fs->super))) { 847 free(inode_buf); 848 return; 849 } 850 851 dump_inode(inode, inode_buf); 852 free(inode_buf); 853 return; 854} 855 856void do_dump_extents(int argc, char *argv[]) 857{ 858 struct ext2_inode inode; 859 ext2_ino_t ino; 860 FILE *out; 861 int c, flags = 0; 862 int logical_width; 863 int physical_width; 864 865 reset_getopt(); 866 while ((c = getopt(argc, argv, "nl")) != EOF) { 867 switch (c) { 868 case 'n': 869 flags |= DUMP_NODE_EXTENTS; 870 break; 871 case 'l': 872 flags |= DUMP_LEAF_EXTENTS; 873 break; 874 } 875 } 876 877 if (argc != optind+1) { 878 print_usage: 879 com_err(0, 0, "Usage: dump_extents [-n] [-l] file"); 880 return; 881 } 882 883 if (flags == 0) 884 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS; 885 flags |= DUMP_EXTENT_TABLE; 886 887 if (check_fs_open(argv[0])) 888 return; 889 890 ino = string_to_inode(argv[optind]); 891 if (ino == 0) 892 return; 893 894 if (debugfs_read_inode(ino, &inode, argv[0])) 895 return; 896 897 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) { 898 fprintf(stderr, "%s: does not uses extent block maps\n", 899 argv[optind]); 900 return; 901 } 902 903 logical_width = int_log10(((inode.i_size | 904 (__u64) inode.i_size_high << 32) + 905 current_fs->blocksize - 1) / 906 current_fs->blocksize) + 1; 907 if (logical_width < 5) 908 logical_width = 5; 909 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1; 910 if (physical_width < 5) 911 physical_width = 5; 912 913 out = open_pager(); 914 dump_extents(out, "", ino, flags, logical_width, physical_width); 915 close_pager(out); 916 return; 917} 918 919void do_chroot(int argc, char *argv[]) 920{ 921 ext2_ino_t inode; 922 int retval; 923 924 if (common_inode_args_process(argc, argv, &inode, 0)) 925 return; 926 927 retval = ext2fs_check_directory(current_fs, inode); 928 if (retval) { 929 com_err(argv[1], retval, 0); 930 return; 931 } 932 root = inode; 933} 934 935void do_clri(int argc, char *argv[]) 936{ 937 ext2_ino_t inode; 938 struct ext2_inode inode_buf; 939 940 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 941 return; 942 943 if (debugfs_read_inode(inode, &inode_buf, argv[0])) 944 return; 945 memset(&inode_buf, 0, sizeof(inode_buf)); 946 if (debugfs_write_inode(inode, &inode_buf, argv[0])) 947 return; 948} 949 950void do_freei(int argc, char *argv[]) 951{ 952 ext2_ino_t inode; 953 954 if (common_inode_args_process(argc, argv, &inode, 955 CHECK_FS_RW | CHECK_FS_BITMAPS)) 956 return; 957 958 if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 959 com_err(argv[0], 0, "Warning: inode already clear"); 960 ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode); 961 ext2fs_mark_ib_dirty(current_fs); 962} 963 964void do_seti(int argc, char *argv[]) 965{ 966 ext2_ino_t inode; 967 968 if (common_inode_args_process(argc, argv, &inode, 969 CHECK_FS_RW | CHECK_FS_BITMAPS)) 970 return; 971 972 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 973 com_err(argv[0], 0, "Warning: inode already set"); 974 ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode); 975 ext2fs_mark_ib_dirty(current_fs); 976} 977 978void do_testi(int argc, char *argv[]) 979{ 980 ext2_ino_t inode; 981 982 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS)) 983 return; 984 985 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 986 printf("Inode %u is marked in use\n", inode); 987 else 988 printf("Inode %u is not in use\n", inode); 989} 990 991void do_freeb(int argc, char *argv[]) 992{ 993 blk_t block; 994 blk_t count = 1; 995 996 if (common_block_args_process(argc, argv, &block, &count)) 997 return; 998 if (check_fs_read_write(argv[0])) 999 return; 1000 while (count-- > 0) { 1001 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1002 com_err(argv[0], 0, "Warning: block %u already clear", 1003 block); 1004 ext2fs_unmark_block_bitmap2(current_fs->block_map,block); 1005 block++; 1006 } 1007 ext2fs_mark_bb_dirty(current_fs); 1008} 1009 1010void do_setb(int argc, char *argv[]) 1011{ 1012 blk_t block; 1013 blk_t count = 1; 1014 1015 if (common_block_args_process(argc, argv, &block, &count)) 1016 return; 1017 if (check_fs_read_write(argv[0])) 1018 return; 1019 while (count-- > 0) { 1020 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1021 com_err(argv[0], 0, "Warning: block %u already set", 1022 block); 1023 ext2fs_mark_block_bitmap2(current_fs->block_map,block); 1024 block++; 1025 } 1026 ext2fs_mark_bb_dirty(current_fs); 1027} 1028 1029void do_testb(int argc, char *argv[]) 1030{ 1031 blk_t block; 1032 blk_t count = 1; 1033 1034 if (common_block_args_process(argc, argv, &block, &count)) 1035 return; 1036 while (count-- > 0) { 1037 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1038 printf("Block %u marked in use\n", block); 1039 else 1040 printf("Block %u not in use\n", block); 1041 block++; 1042 } 1043} 1044 1045static void modify_u8(char *com, const char *prompt, 1046 const char *format, __u8 *val) 1047{ 1048 char buf[200]; 1049 unsigned long v; 1050 char *tmp; 1051 1052 sprintf(buf, format, *val); 1053 printf("%30s [%s] ", prompt, buf); 1054 if (!fgets(buf, sizeof(buf), stdin)) 1055 return; 1056 if (buf[strlen (buf) - 1] == '\n') 1057 buf[strlen (buf) - 1] = '\0'; 1058 if (!buf[0]) 1059 return; 1060 v = strtoul(buf, &tmp, 0); 1061 if (*tmp) 1062 com_err(com, 0, "Bad value - %s", buf); 1063 else 1064 *val = v; 1065} 1066 1067static void modify_u16(char *com, const char *prompt, 1068 const char *format, __u16 *val) 1069{ 1070 char buf[200]; 1071 unsigned long v; 1072 char *tmp; 1073 1074 sprintf(buf, format, *val); 1075 printf("%30s [%s] ", prompt, buf); 1076 if (!fgets(buf, sizeof(buf), stdin)) 1077 return; 1078 if (buf[strlen (buf) - 1] == '\n') 1079 buf[strlen (buf) - 1] = '\0'; 1080 if (!buf[0]) 1081 return; 1082 v = strtoul(buf, &tmp, 0); 1083 if (*tmp) 1084 com_err(com, 0, "Bad value - %s", buf); 1085 else 1086 *val = v; 1087} 1088 1089static void modify_u32(char *com, const char *prompt, 1090 const char *format, __u32 *val) 1091{ 1092 char buf[200]; 1093 unsigned long v; 1094 char *tmp; 1095 1096 sprintf(buf, format, *val); 1097 printf("%30s [%s] ", prompt, buf); 1098 if (!fgets(buf, sizeof(buf), stdin)) 1099 return; 1100 if (buf[strlen (buf) - 1] == '\n') 1101 buf[strlen (buf) - 1] = '\0'; 1102 if (!buf[0]) 1103 return; 1104 v = strtoul(buf, &tmp, 0); 1105 if (*tmp) 1106 com_err(com, 0, "Bad value - %s", buf); 1107 else 1108 *val = v; 1109} 1110 1111 1112void do_modify_inode(int argc, char *argv[]) 1113{ 1114 struct ext2_inode inode; 1115 ext2_ino_t inode_num; 1116 int i; 1117 unsigned char *frag, *fsize; 1118 char buf[80]; 1119 int os; 1120 const char *hex_format = "0x%x"; 1121 const char *octal_format = "0%o"; 1122 const char *decimal_format = "%d"; 1123 const char *unsignedlong_format = "%lu"; 1124 1125 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1126 return; 1127 1128 os = current_fs->super->s_creator_os; 1129 1130 if (debugfs_read_inode(inode_num, &inode, argv[1])) 1131 return; 1132 1133 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode); 1134 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid); 1135 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid); 1136 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size); 1137 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime); 1138 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime); 1139 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime); 1140 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime); 1141 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count); 1142 if (os == EXT2_OS_LINUX) 1143 modify_u16(argv[0], "Block count high", unsignedlong_format, 1144 &inode.osd2.linux2.l_i_blocks_hi); 1145 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks); 1146 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags); 1147 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation); 1148#if 0 1149 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1); 1150#endif 1151 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl); 1152 if (LINUX_S_ISDIR(inode.i_mode)) 1153 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl); 1154 else 1155 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high); 1156 1157 if (os == EXT2_OS_HURD) 1158 modify_u32(argv[0], "Translator Block", 1159 decimal_format, &inode.osd1.hurd1.h_i_translator); 1160 1161 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr); 1162 switch (os) { 1163 case EXT2_OS_HURD: 1164 frag = &inode.osd2.hurd2.h_i_frag; 1165 fsize = &inode.osd2.hurd2.h_i_fsize; 1166 break; 1167 default: 1168 frag = fsize = 0; 1169 } 1170 if (frag) 1171 modify_u8(argv[0], "Fragment number", decimal_format, frag); 1172 if (fsize) 1173 modify_u8(argv[0], "Fragment size", decimal_format, fsize); 1174 1175 for (i=0; i < EXT2_NDIR_BLOCKS; i++) { 1176 sprintf(buf, "Direct Block #%d", i); 1177 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]); 1178 } 1179 modify_u32(argv[0], "Indirect Block", decimal_format, 1180 &inode.i_block[EXT2_IND_BLOCK]); 1181 modify_u32(argv[0], "Double Indirect Block", decimal_format, 1182 &inode.i_block[EXT2_DIND_BLOCK]); 1183 modify_u32(argv[0], "Triple Indirect Block", decimal_format, 1184 &inode.i_block[EXT2_TIND_BLOCK]); 1185 if (debugfs_write_inode(inode_num, &inode, argv[1])) 1186 return; 1187} 1188 1189void do_change_working_dir(int argc, char *argv[]) 1190{ 1191 ext2_ino_t inode; 1192 int retval; 1193 1194 if (common_inode_args_process(argc, argv, &inode, 0)) 1195 return; 1196 1197 retval = ext2fs_check_directory(current_fs, inode); 1198 if (retval) { 1199 com_err(argv[1], retval, 0); 1200 return; 1201 } 1202 cwd = inode; 1203 return; 1204} 1205 1206void do_print_working_directory(int argc, char *argv[]) 1207{ 1208 int retval; 1209 char *pathname = NULL; 1210 1211 if (common_args_process(argc, argv, 1, 1, 1212 "print_working_directory", "", 0)) 1213 return; 1214 1215 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname); 1216 if (retval) { 1217 com_err(argv[0], retval, 1218 "while trying to get pathname of cwd"); 1219 } 1220 printf("[pwd] INODE: %6u PATH: %s\n", 1221 cwd, pathname ? pathname : "NULL"); 1222 if (pathname) { 1223 free(pathname); 1224 pathname = NULL; 1225 } 1226 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname); 1227 if (retval) { 1228 com_err(argv[0], retval, 1229 "while trying to get pathname of root"); 1230 } 1231 printf("[root] INODE: %6u PATH: %s\n", 1232 root, pathname ? pathname : "NULL"); 1233 if (pathname) { 1234 free(pathname); 1235 pathname = NULL; 1236 } 1237 return; 1238} 1239 1240/* 1241 * Given a mode, return the ext2 file type 1242 */ 1243static int ext2_file_type(unsigned int mode) 1244{ 1245 if (LINUX_S_ISREG(mode)) 1246 return EXT2_FT_REG_FILE; 1247 1248 if (LINUX_S_ISDIR(mode)) 1249 return EXT2_FT_DIR; 1250 1251 if (LINUX_S_ISCHR(mode)) 1252 return EXT2_FT_CHRDEV; 1253 1254 if (LINUX_S_ISBLK(mode)) 1255 return EXT2_FT_BLKDEV; 1256 1257 if (LINUX_S_ISLNK(mode)) 1258 return EXT2_FT_SYMLINK; 1259 1260 if (LINUX_S_ISFIFO(mode)) 1261 return EXT2_FT_FIFO; 1262 1263 if (LINUX_S_ISSOCK(mode)) 1264 return EXT2_FT_SOCK; 1265 1266 return 0; 1267} 1268 1269static void make_link(char *sourcename, char *destname) 1270{ 1271 ext2_ino_t ino; 1272 struct ext2_inode inode; 1273 int retval; 1274 ext2_ino_t dir; 1275 char *dest, *cp, *base_name; 1276 1277 /* 1278 * Get the source inode 1279 */ 1280 ino = string_to_inode(sourcename); 1281 if (!ino) 1282 return; 1283 base_name = strrchr(sourcename, '/'); 1284 if (base_name) 1285 base_name++; 1286 else 1287 base_name = sourcename; 1288 /* 1289 * Figure out the destination. First see if it exists and is 1290 * a directory. 1291 */ 1292 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir))) 1293 dest = base_name; 1294 else { 1295 /* 1296 * OK, it doesn't exist. See if it is 1297 * '<dir>/basename' or 'basename' 1298 */ 1299 cp = strrchr(destname, '/'); 1300 if (cp) { 1301 *cp = 0; 1302 dir = string_to_inode(destname); 1303 if (!dir) 1304 return; 1305 dest = cp+1; 1306 } else { 1307 dir = cwd; 1308 dest = destname; 1309 } 1310 } 1311 1312 if (debugfs_read_inode(ino, &inode, sourcename)) 1313 return; 1314 1315 retval = ext2fs_link(current_fs, dir, dest, ino, 1316 ext2_file_type(inode.i_mode)); 1317 if (retval) 1318 com_err("make_link", retval, 0); 1319 return; 1320} 1321 1322 1323void do_link(int argc, char *argv[]) 1324{ 1325 if (common_args_process(argc, argv, 3, 3, "link", 1326 "<source file> <dest_name>", CHECK_FS_RW)) 1327 return; 1328 1329 make_link(argv[1], argv[2]); 1330} 1331 1332static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr, 1333 int blockcnt EXT2FS_ATTR((unused)), 1334 void *private EXT2FS_ATTR((unused))) 1335{ 1336 blk_t block; 1337 1338 block = *blocknr; 1339 ext2fs_block_alloc_stats(fs, block, +1); 1340 return 0; 1341} 1342 1343void do_undel(int argc, char *argv[]) 1344{ 1345 ext2_ino_t ino; 1346 struct ext2_inode inode; 1347 1348 if (common_args_process(argc, argv, 2, 3, "undelete", 1349 "<inode_num> [dest_name]", 1350 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1351 return; 1352 1353 ino = string_to_inode(argv[1]); 1354 if (!ino) 1355 return; 1356 1357 if (debugfs_read_inode(ino, &inode, argv[1])) 1358 return; 1359 1360 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) { 1361 com_err(argv[1], 0, "Inode is not marked as deleted"); 1362 return; 1363 } 1364 1365 /* 1366 * XXX this function doesn't handle changing the links count on the 1367 * parent directory when undeleting a directory. 1368 */ 1369 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1; 1370 inode.i_dtime = 0; 1371 1372 if (debugfs_write_inode(ino, &inode, argv[0])) 1373 return; 1374 1375 ext2fs_block_iterate(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL, 1376 mark_blocks_proc, NULL); 1377 1378 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0); 1379 1380 if (argc > 2) 1381 make_link(argv[1], argv[2]); 1382} 1383 1384static void unlink_file_by_name(char *filename) 1385{ 1386 int retval; 1387 ext2_ino_t dir; 1388 char *base_name; 1389 1390 base_name = strrchr(filename, '/'); 1391 if (base_name) { 1392 *base_name++ = '\0'; 1393 dir = string_to_inode(filename); 1394 if (!dir) 1395 return; 1396 } else { 1397 dir = cwd; 1398 base_name = filename; 1399 } 1400 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0); 1401 if (retval) 1402 com_err("unlink_file_by_name", retval, 0); 1403 return; 1404} 1405 1406void do_unlink(int argc, char *argv[]) 1407{ 1408 if (common_args_process(argc, argv, 2, 2, "link", 1409 "<pathname>", CHECK_FS_RW)) 1410 return; 1411 1412 unlink_file_by_name(argv[1]); 1413} 1414 1415void do_find_free_block(int argc, char *argv[]) 1416{ 1417 blk_t free_blk, goal, first_free = 0; 1418 int count; 1419 errcode_t retval; 1420 char *tmp; 1421 1422 if ((argc > 3) || (argc==2 && *argv[1] == '?')) { 1423 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]"); 1424 return; 1425 } 1426 if (check_fs_open(argv[0])) 1427 return; 1428 1429 if (argc > 1) { 1430 count = strtol(argv[1],&tmp,0); 1431 if (*tmp) { 1432 com_err(argv[0], 0, "Bad count - %s", argv[1]); 1433 return; 1434 } 1435 } else 1436 count = 1; 1437 1438 if (argc > 2) { 1439 goal = strtol(argv[2], &tmp, 0); 1440 if (*tmp) { 1441 com_err(argv[0], 0, "Bad goal - %s", argv[1]); 1442 return; 1443 } 1444 } 1445 else 1446 goal = current_fs->super->s_first_data_block; 1447 1448 printf("Free blocks found: "); 1449 free_blk = goal - 1; 1450 while (count-- > 0) { 1451 retval = ext2fs_new_block(current_fs, free_blk + 1, 0, 1452 &free_blk); 1453 if (first_free) { 1454 if (first_free == free_blk) 1455 break; 1456 } else 1457 first_free = free_blk; 1458 if (retval) { 1459 com_err("ext2fs_new_block", retval, 0); 1460 return; 1461 } else 1462 printf("%u ", free_blk); 1463 } 1464 printf("\n"); 1465} 1466 1467void do_find_free_inode(int argc, char *argv[]) 1468{ 1469 ext2_ino_t free_inode, dir; 1470 int mode; 1471 int retval; 1472 char *tmp; 1473 1474 if (argc > 3 || (argc>1 && *argv[1] == '?')) { 1475 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]"); 1476 return; 1477 } 1478 if (check_fs_open(argv[0])) 1479 return; 1480 1481 if (argc > 1) { 1482 dir = strtol(argv[1], &tmp, 0); 1483 if (*tmp) { 1484 com_err(argv[0], 0, "Bad dir - %s", argv[1]); 1485 return; 1486 } 1487 } 1488 else 1489 dir = root; 1490 if (argc > 2) { 1491 mode = strtol(argv[2], &tmp, 0); 1492 if (*tmp) { 1493 com_err(argv[0], 0, "Bad mode - %s", argv[2]); 1494 return; 1495 } 1496 } else 1497 mode = 010755; 1498 1499 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode); 1500 if (retval) 1501 com_err("ext2fs_new_inode", retval, 0); 1502 else 1503 printf("Free inode found: %u\n", free_inode); 1504} 1505 1506static errcode_t copy_file(int fd, ext2_ino_t newfile) 1507{ 1508 ext2_file_t e2_file; 1509 errcode_t retval; 1510 int got; 1511 unsigned int written; 1512 char buf[8192]; 1513 char *ptr; 1514 1515 retval = ext2fs_file_open(current_fs, newfile, 1516 EXT2_FILE_WRITE, &e2_file); 1517 if (retval) 1518 return retval; 1519 1520 while (1) { 1521 got = read(fd, buf, sizeof(buf)); 1522 if (got == 0) 1523 break; 1524 if (got < 0) { 1525 retval = errno; 1526 goto fail; 1527 } 1528 ptr = buf; 1529 while (got > 0) { 1530 retval = ext2fs_file_write(e2_file, ptr, 1531 got, &written); 1532 if (retval) 1533 goto fail; 1534 1535 got -= written; 1536 ptr += written; 1537 } 1538 } 1539 retval = ext2fs_file_close(e2_file); 1540 return retval; 1541 1542fail: 1543 (void) ext2fs_file_close(e2_file); 1544 return retval; 1545} 1546 1547 1548void do_write(int argc, char *argv[]) 1549{ 1550 int fd; 1551 struct stat statbuf; 1552 ext2_ino_t newfile; 1553 errcode_t retval; 1554 struct ext2_inode inode; 1555 1556 if (common_args_process(argc, argv, 3, 3, "write", 1557 "<native file> <new file>", CHECK_FS_RW)) 1558 return; 1559 1560 fd = open(argv[1], O_RDONLY); 1561 if (fd < 0) { 1562 com_err(argv[1], errno, 0); 1563 return; 1564 } 1565 if (fstat(fd, &statbuf) < 0) { 1566 com_err(argv[1], errno, 0); 1567 close(fd); 1568 return; 1569 } 1570 1571 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile); 1572 if (retval == 0) { 1573 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]); 1574 close(fd); 1575 return; 1576 } 1577 1578 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1579 if (retval) { 1580 com_err(argv[0], retval, 0); 1581 close(fd); 1582 return; 1583 } 1584 printf("Allocated inode: %u\n", newfile); 1585 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1586 EXT2_FT_REG_FILE); 1587 if (retval == EXT2_ET_DIR_NO_SPACE) { 1588 retval = ext2fs_expand_dir(current_fs, cwd); 1589 if (retval) { 1590 com_err(argv[0], retval, "while expanding directory"); 1591 close(fd); 1592 return; 1593 } 1594 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1595 EXT2_FT_REG_FILE); 1596 } 1597 if (retval) { 1598 com_err(argv[2], retval, 0); 1599 close(fd); 1600 return; 1601 } 1602 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1603 com_err(argv[0], 0, "Warning: inode already set"); 1604 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0); 1605 memset(&inode, 0, sizeof(inode)); 1606 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG; 1607 inode.i_atime = inode.i_ctime = inode.i_mtime = 1608 current_fs->now ? current_fs->now : time(0); 1609 inode.i_links_count = 1; 1610 inode.i_size = statbuf.st_size; 1611 if (current_fs->super->s_feature_incompat & 1612 EXT3_FEATURE_INCOMPAT_EXTENTS) 1613 inode.i_flags |= EXT4_EXTENTS_FL; 1614 if (debugfs_write_new_inode(newfile, &inode, argv[0])) { 1615 close(fd); 1616 return; 1617 } 1618 if (LINUX_S_ISREG(inode.i_mode)) { 1619 retval = copy_file(fd, newfile); 1620 if (retval) 1621 com_err("copy_file", retval, 0); 1622 } 1623 close(fd); 1624} 1625 1626void do_mknod(int argc, char *argv[]) 1627{ 1628 unsigned long mode, major, minor; 1629 ext2_ino_t newfile; 1630 errcode_t retval; 1631 struct ext2_inode inode; 1632 int filetype, nr; 1633 1634 if (check_fs_open(argv[0])) 1635 return; 1636 if (argc < 3 || argv[2][1]) { 1637 usage: 1638 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]"); 1639 return; 1640 } 1641 mode = minor = major = 0; 1642 switch (argv[2][0]) { 1643 case 'p': 1644 mode = LINUX_S_IFIFO; 1645 filetype = EXT2_FT_FIFO; 1646 nr = 3; 1647 break; 1648 case 'c': 1649 mode = LINUX_S_IFCHR; 1650 filetype = EXT2_FT_CHRDEV; 1651 nr = 5; 1652 break; 1653 case 'b': 1654 mode = LINUX_S_IFBLK; 1655 filetype = EXT2_FT_BLKDEV; 1656 nr = 5; 1657 break; 1658 default: 1659 filetype = 0; 1660 nr = 0; 1661 } 1662 if (nr == 5) { 1663 major = strtoul(argv[3], argv+3, 0); 1664 minor = strtoul(argv[4], argv+4, 0); 1665 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0]) 1666 nr = 0; 1667 } 1668 if (argc != nr) 1669 goto usage; 1670 if (check_fs_read_write(argv[0])) 1671 return; 1672 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1673 if (retval) { 1674 com_err(argv[0], retval, 0); 1675 return; 1676 } 1677 printf("Allocated inode: %u\n", newfile); 1678 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype); 1679 if (retval == EXT2_ET_DIR_NO_SPACE) { 1680 retval = ext2fs_expand_dir(current_fs, cwd); 1681 if (retval) { 1682 com_err(argv[0], retval, "while expanding directory"); 1683 return; 1684 } 1685 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, 1686 filetype); 1687 } 1688 if (retval) { 1689 com_err(argv[1], retval, 0); 1690 return; 1691 } 1692 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1693 com_err(argv[0], 0, "Warning: inode already set"); 1694 ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile); 1695 ext2fs_mark_ib_dirty(current_fs); 1696 memset(&inode, 0, sizeof(inode)); 1697 inode.i_mode = mode; 1698 inode.i_atime = inode.i_ctime = inode.i_mtime = 1699 current_fs->now ? current_fs->now : time(0); 1700 if ((major < 256) && (minor < 256)) { 1701 inode.i_block[0] = major*256+minor; 1702 inode.i_block[1] = 0; 1703 } else { 1704 inode.i_block[0] = 0; 1705 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); 1706 } 1707 inode.i_links_count = 1; 1708 if (debugfs_write_new_inode(newfile, &inode, argv[0])) 1709 return; 1710} 1711 1712void do_mkdir(int argc, char *argv[]) 1713{ 1714 char *cp; 1715 ext2_ino_t parent; 1716 char *name; 1717 errcode_t retval; 1718 1719 if (common_args_process(argc, argv, 2, 2, "mkdir", 1720 "<filename>", CHECK_FS_RW)) 1721 return; 1722 1723 cp = strrchr(argv[1], '/'); 1724 if (cp) { 1725 *cp = 0; 1726 parent = string_to_inode(argv[1]); 1727 if (!parent) { 1728 com_err(argv[1], ENOENT, 0); 1729 return; 1730 } 1731 name = cp+1; 1732 } else { 1733 parent = cwd; 1734 name = argv[1]; 1735 } 1736 1737try_again: 1738 retval = ext2fs_mkdir(current_fs, parent, 0, name); 1739 if (retval == EXT2_ET_DIR_NO_SPACE) { 1740 retval = ext2fs_expand_dir(current_fs, parent); 1741 if (retval) { 1742 com_err(argv[0], retval, "while expanding directory"); 1743 return; 1744 } 1745 goto try_again; 1746 } 1747 if (retval) { 1748 com_err("ext2fs_mkdir", retval, 0); 1749 return; 1750 } 1751 1752} 1753 1754static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr, 1755 int blockcnt EXT2FS_ATTR((unused)), 1756 void *private EXT2FS_ATTR((unused))) 1757{ 1758 blk_t block; 1759 1760 block = *blocknr; 1761 ext2fs_block_alloc_stats(fs, block, -1); 1762 return 0; 1763} 1764 1765static void kill_file_by_inode(ext2_ino_t inode) 1766{ 1767 struct ext2_inode inode_buf; 1768 1769 if (debugfs_read_inode(inode, &inode_buf, 0)) 1770 return; 1771 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0); 1772 if (debugfs_write_inode(inode, &inode_buf, 0)) 1773 return; 1774 if (!ext2fs_inode_has_valid_blocks(&inode_buf)) 1775 return; 1776 1777 ext2fs_block_iterate(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 1778 release_blocks_proc, NULL); 1779 printf("\n"); 1780 ext2fs_inode_alloc_stats2(current_fs, inode, -1, 1781 LINUX_S_ISDIR(inode_buf.i_mode)); 1782} 1783 1784 1785void do_kill_file(int argc, char *argv[]) 1786{ 1787 ext2_ino_t inode_num; 1788 1789 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1790 return; 1791 1792 kill_file_by_inode(inode_num); 1793} 1794 1795void do_rm(int argc, char *argv[]) 1796{ 1797 int retval; 1798 ext2_ino_t inode_num; 1799 struct ext2_inode inode; 1800 1801 if (common_args_process(argc, argv, 2, 2, "rm", 1802 "<filename>", CHECK_FS_RW)) 1803 return; 1804 1805 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1806 if (retval) { 1807 com_err(argv[0], retval, "while trying to resolve filename"); 1808 return; 1809 } 1810 1811 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1812 return; 1813 1814 if (LINUX_S_ISDIR(inode.i_mode)) { 1815 com_err(argv[0], 0, "file is a directory"); 1816 return; 1817 } 1818 1819 --inode.i_links_count; 1820 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1821 return; 1822 1823 unlink_file_by_name(argv[1]); 1824 if (inode.i_links_count == 0) 1825 kill_file_by_inode(inode_num); 1826} 1827 1828struct rd_struct { 1829 ext2_ino_t parent; 1830 int empty; 1831}; 1832 1833static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)), 1834 int entry EXT2FS_ATTR((unused)), 1835 struct ext2_dir_entry *dirent, 1836 int offset EXT2FS_ATTR((unused)), 1837 int blocksize EXT2FS_ATTR((unused)), 1838 char *buf EXT2FS_ATTR((unused)), 1839 void *private) 1840{ 1841 struct rd_struct *rds = (struct rd_struct *) private; 1842 1843 if (dirent->inode == 0) 1844 return 0; 1845 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.')) 1846 return 0; 1847 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') && 1848 (dirent->name[1] == '.')) { 1849 rds->parent = dirent->inode; 1850 return 0; 1851 } 1852 rds->empty = 0; 1853 return 0; 1854} 1855 1856void do_rmdir(int argc, char *argv[]) 1857{ 1858 int retval; 1859 ext2_ino_t inode_num; 1860 struct ext2_inode inode; 1861 struct rd_struct rds; 1862 1863 if (common_args_process(argc, argv, 2, 2, "rmdir", 1864 "<filename>", CHECK_FS_RW)) 1865 return; 1866 1867 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1868 if (retval) { 1869 com_err(argv[0], retval, "while trying to resolve filename"); 1870 return; 1871 } 1872 1873 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1874 return; 1875 1876 if (!LINUX_S_ISDIR(inode.i_mode)) { 1877 com_err(argv[0], 0, "file is not a directory"); 1878 return; 1879 } 1880 1881 rds.parent = 0; 1882 rds.empty = 1; 1883 1884 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0, 1885 0, rmdir_proc, &rds); 1886 if (retval) { 1887 com_err(argv[0], retval, "while iterating over directory"); 1888 return; 1889 } 1890 if (rds.empty == 0) { 1891 com_err(argv[0], 0, "directory not empty"); 1892 return; 1893 } 1894 1895 inode.i_links_count = 0; 1896 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1897 return; 1898 1899 unlink_file_by_name(argv[1]); 1900 kill_file_by_inode(inode_num); 1901 1902 if (rds.parent) { 1903 if (debugfs_read_inode(rds.parent, &inode, argv[0])) 1904 return; 1905 if (inode.i_links_count > 1) 1906 inode.i_links_count--; 1907 if (debugfs_write_inode(rds.parent, &inode, argv[0])) 1908 return; 1909 } 1910} 1911 1912void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)), 1913 char *argv[] EXT2FS_ATTR((unused))) 1914{ 1915 FILE *out = stdout; 1916 1917 if (current_fs) 1918 fprintf(out, "Open mode: read-%s\n", 1919 current_fs->flags & EXT2_FLAG_RW ? "write" : "only"); 1920 fprintf(out, "Filesystem in use: %s\n", 1921 current_fs ? current_fs->device_name : "--none--"); 1922} 1923 1924void do_expand_dir(int argc, char *argv[]) 1925{ 1926 ext2_ino_t inode; 1927 int retval; 1928 1929 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 1930 return; 1931 1932 retval = ext2fs_expand_dir(current_fs, inode); 1933 if (retval) 1934 com_err("ext2fs_expand_dir", retval, 0); 1935 return; 1936} 1937 1938void do_features(int argc, char *argv[]) 1939{ 1940 int i; 1941 1942 if (check_fs_open(argv[0])) 1943 return; 1944 1945 if ((argc != 1) && check_fs_read_write(argv[0])) 1946 return; 1947 for (i=1; i < argc; i++) { 1948 if (e2p_edit_feature(argv[i], 1949 ¤t_fs->super->s_feature_compat, 0)) 1950 com_err(argv[0], 0, "Unknown feature: %s\n", 1951 argv[i]); 1952 else 1953 ext2fs_mark_super_dirty(current_fs); 1954 } 1955 print_features(current_fs->super, stdout); 1956} 1957 1958void do_bmap(int argc, char *argv[]) 1959{ 1960 ext2_ino_t ino; 1961 blk_t blk, pblk; 1962 int err; 1963 errcode_t errcode; 1964 1965 if (common_args_process(argc, argv, 3, 3, argv[0], 1966 "<file> logical_blk", 0)) 1967 return; 1968 1969 ino = string_to_inode(argv[1]); 1970 if (!ino) 1971 return; 1972 blk = parse_ulong(argv[2], argv[0], "logical_block", &err); 1973 1974 errcode = ext2fs_bmap(current_fs, ino, 0, 0, 0, blk, &pblk); 1975 if (errcode) { 1976 com_err("argv[0]", errcode, 1977 "while mapping logical block %u\n", blk); 1978 return; 1979 } 1980 printf("%u\n", pblk); 1981} 1982 1983void do_imap(int argc, char *argv[]) 1984{ 1985 ext2_ino_t ino; 1986 unsigned long group, block, block_nr, offset; 1987 1988 if (common_args_process(argc, argv, 2, 2, argv[0], 1989 "<file>", 0)) 1990 return; 1991 ino = string_to_inode(argv[1]); 1992 if (!ino) 1993 return; 1994 1995 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super); 1996 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) * 1997 EXT2_INODE_SIZE(current_fs->super); 1998 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super); 1999 if (!current_fs->group_desc[(unsigned)group].bg_inode_table) { 2000 com_err(argv[0], 0, "Inode table for group %lu is missing\n", 2001 group); 2002 return; 2003 } 2004 block_nr = current_fs->group_desc[(unsigned)group].bg_inode_table + 2005 block; 2006 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1); 2007 2008 printf("Inode %d is part of block group %lu\n" 2009 "\tlocated at block %lu, offset 0x%04lx\n", ino, group, 2010 block_nr, offset); 2011 2012} 2013 2014void do_set_current_time(int argc, char *argv[]) 2015{ 2016 time_t now; 2017 2018 if (common_args_process(argc, argv, 2, 2, argv[0], 2019 "<time>", 0)) 2020 return; 2021 2022 now = string_to_time(argv[1]); 2023 if (now == ((time_t) -1)) { 2024 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n", 2025 argv[1]); 2026 return; 2027 2028 } else { 2029 printf("Setting current time to %s\n", time_to_string(now)); 2030 current_fs->now = now; 2031 } 2032} 2033 2034static int find_supp_feature(__u32 *supp, int feature_type, char *name) 2035{ 2036 int compat, bit, ret; 2037 unsigned int feature_mask; 2038 2039 if (name) { 2040 if (feature_type == E2P_FS_FEATURE) 2041 ret = e2p_string2feature(name, &compat, &feature_mask); 2042 else 2043 ret = e2p_jrnl_string2feature(name, &compat, 2044 &feature_mask); 2045 if (ret) 2046 return ret; 2047 2048 if (!(supp[compat] & feature_mask)) 2049 return 1; 2050 } else { 2051 for (compat = 0; compat < 3; compat++) { 2052 for (bit = 0, feature_mask = 1; bit < 32; 2053 bit++, feature_mask <<= 1) { 2054 if (supp[compat] & feature_mask) { 2055 if (feature_type == E2P_FS_FEATURE) 2056 fprintf(stdout, " %s", 2057 e2p_feature2string(compat, 2058 feature_mask)); 2059 else 2060 fprintf(stdout, " %s", 2061 e2p_jrnl_feature2string(compat, 2062 feature_mask)); 2063 } 2064 } 2065 } 2066 fprintf(stdout, "\n"); 2067 } 2068 2069 return 0; 2070} 2071 2072void do_supported_features(int argc, char *argv[]) 2073{ 2074 int ret; 2075 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP, 2076 EXT2_LIB_FEATURE_INCOMPAT_SUPP, 2077 EXT2_LIB_FEATURE_RO_COMPAT_SUPP }; 2078 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES, 2079 JFS_KNOWN_INCOMPAT_FEATURES, 2080 JFS_KNOWN_ROCOMPAT_FEATURES }; 2081 2082 if (argc > 1) { 2083 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]); 2084 if (ret) { 2085 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, 2086 argv[1]); 2087 } 2088 if (ret) 2089 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]); 2090 else 2091 fprintf(stdout, "Supported feature: %s\n", argv[1]); 2092 } else { 2093 fprintf(stdout, "Supported features:"); 2094 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL); 2095 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL); 2096 } 2097} 2098 2099static int source_file(const char *cmd_file, int sci_idx) 2100{ 2101 FILE *f; 2102 char buf[256]; 2103 char *cp; 2104 int exit_status = 0; 2105 int retval; 2106 2107 if (strcmp(cmd_file, "-") == 0) 2108 f = stdin; 2109 else { 2110 f = fopen(cmd_file, "r"); 2111 if (!f) { 2112 perror(cmd_file); 2113 exit(1); 2114 } 2115 } 2116 fflush(stdout); 2117 fflush(stderr); 2118 setbuf(stdout, NULL); 2119 setbuf(stderr, NULL); 2120 while (!feof(f)) { 2121 if (fgets(buf, sizeof(buf), f) == NULL) 2122 break; 2123 cp = strchr(buf, '\n'); 2124 if (cp) 2125 *cp = 0; 2126 cp = strchr(buf, '\r'); 2127 if (cp) 2128 *cp = 0; 2129 printf("debugfs: %s\n", buf); 2130 retval = ss_execute_line(sci_idx, buf); 2131 if (retval) { 2132 ss_perror(sci_idx, retval, buf); 2133 exit_status++; 2134 } 2135 } 2136 return exit_status; 2137} 2138 2139int main(int argc, char **argv) 2140{ 2141 int retval; 2142 int sci_idx; 2143 const char *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]"; 2144 int c; 2145 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES; 2146 char *request = 0; 2147 int exit_status = 0; 2148 char *cmd_file = 0; 2149 blk_t superblock = 0; 2150 blk_t blocksize = 0; 2151 int catastrophic = 0; 2152 char *data_filename = 0; 2153 2154 if (debug_prog_name == 0) 2155 debug_prog_name = "debugfs"; 2156 2157 add_error_table(&et_ext2_error_table); 2158 fprintf (stderr, "%s %s (%s)\n", debug_prog_name, 2159 E2FSPROGS_VERSION, E2FSPROGS_DATE); 2160 2161 while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:")) != EOF) { 2162 switch (c) { 2163 case 'R': 2164 request = optarg; 2165 break; 2166 case 'f': 2167 cmd_file = optarg; 2168 break; 2169 case 'd': 2170 data_filename = optarg; 2171 break; 2172 case 'i': 2173 open_flags |= EXT2_FLAG_IMAGE_FILE; 2174 break; 2175 case 'w': 2176 open_flags |= EXT2_FLAG_RW; 2177 break; 2178 case 'b': 2179 blocksize = parse_ulong(optarg, argv[0], 2180 "block size", 0); 2181 break; 2182 case 's': 2183 superblock = parse_ulong(optarg, argv[0], 2184 "superblock number", 0); 2185 break; 2186 case 'c': 2187 catastrophic = 1; 2188 break; 2189 case 'V': 2190 /* Print version number and exit */ 2191 fprintf(stderr, "\tUsing %s\n", 2192 error_message(EXT2_ET_BASE)); 2193 exit(0); 2194 default: 2195 com_err(argv[0], 0, usage, debug_prog_name); 2196 return 1; 2197 } 2198 } 2199 if (optind < argc) 2200 open_filesystem(argv[optind], open_flags, 2201 superblock, blocksize, catastrophic, 2202 data_filename); 2203 2204 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL, 2205 &debug_cmds, &retval); 2206 if (retval) { 2207 ss_perror(sci_idx, retval, "creating invocation"); 2208 exit(1); 2209 } 2210 ss_get_readline(sci_idx); 2211 2212 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval); 2213 if (retval) { 2214 ss_perror(sci_idx, retval, "adding standard requests"); 2215 exit (1); 2216 } 2217 if (extra_cmds) 2218 ss_add_request_table (sci_idx, extra_cmds, 1, &retval); 2219 if (retval) { 2220 ss_perror(sci_idx, retval, "adding extra requests"); 2221 exit (1); 2222 } 2223 if (request) { 2224 retval = 0; 2225 retval = ss_execute_line(sci_idx, request); 2226 if (retval) { 2227 ss_perror(sci_idx, retval, request); 2228 exit_status++; 2229 } 2230 } else if (cmd_file) { 2231 exit_status = source_file(cmd_file, sci_idx); 2232 } else { 2233 ss_listen(sci_idx); 2234 } 2235 2236 ss_delete_invocation(sci_idx); 2237 2238 if (current_fs) 2239 close_filesystem(); 2240 2241 remove_error_table(&et_ext2_error_table); 2242 return exit_status; 2243} 2244