debugfs.c revision 9d92a201deec7bbb1911e6e5ee98abf3c83882d4
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, blk64_t superblock, 49 blk64_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 blk64_t superblock = 0; 129 blk64_t blocksize = 0; 130 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 131 char *data_filename = 0; 132 133 reset_getopt(); 134 while ((c = getopt (argc, argv, "iwfecb:s:d: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 'D': 155 open_flags |= EXT2_FLAG_DIRECT_IO; 156 break; 157 case 'b': 158 blocksize = parse_ulong(optarg, argv[0], 159 "block size", &err); 160 if (err) 161 return; 162 break; 163 case 's': 164 superblock = parse_ulong(optarg, argv[0], 165 "superblock number", &err); 166 if (err) 167 return; 168 break; 169 default: 170 goto print_usage; 171 } 172 } 173 if (optind != argc-1) { 174 goto print_usage; 175 } 176 if (check_fs_not_open(argv[0])) 177 return; 178 open_filesystem(argv[optind], open_flags, 179 superblock, blocksize, catastrophic, 180 data_filename); 181 return; 182 183print_usage: 184 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] " 185 "[-c] [-w] <device>\n", argv[0]); 186} 187 188void do_lcd(int argc, char **argv) 189{ 190 if (argc != 2) { 191 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>"); 192 return; 193 } 194 195 if (chdir(argv[1]) == -1) { 196 com_err(argv[0], errno, 197 "while trying to change native directory to %s", 198 argv[1]); 199 return; 200 } 201} 202 203static void close_filesystem(NOARGS) 204{ 205 int retval; 206 207 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) { 208 retval = ext2fs_write_inode_bitmap(current_fs); 209 if (retval) 210 com_err("ext2fs_write_inode_bitmap", retval, 0); 211 } 212 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) { 213 retval = ext2fs_write_block_bitmap(current_fs); 214 if (retval) 215 com_err("ext2fs_write_block_bitmap", retval, 0); 216 } 217 retval = ext2fs_close(current_fs); 218 if (retval) 219 com_err("ext2fs_close", retval, 0); 220 current_fs = NULL; 221 return; 222} 223 224void do_close_filesys(int argc, char **argv) 225{ 226 int c; 227 228 if (check_fs_open(argv[0])) 229 return; 230 231 reset_getopt(); 232 while ((c = getopt (argc, argv, "a")) != EOF) { 233 switch (c) { 234 case 'a': 235 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; 236 break; 237 default: 238 goto print_usage; 239 } 240 } 241 242 if (argc > optind) { 243 print_usage: 244 com_err(0, 0, "Usage: close_filesys [-a]"); 245 return; 246 } 247 248 close_filesystem(); 249} 250 251void do_init_filesys(int argc, char **argv) 252{ 253 struct ext2_super_block param; 254 errcode_t retval; 255 int err; 256 257 if (common_args_process(argc, argv, 3, 3, "initialize", 258 "<device> <blocksize>", CHECK_FS_NOTOPEN)) 259 return; 260 261 memset(¶m, 0, sizeof(struct ext2_super_block)); 262 ext2fs_blocks_count_set(¶m, parse_ulong(argv[2], argv[0], 263 "blocks count", &err)); 264 if (err) 265 return; 266 retval = ext2fs_initialize(argv[1], 0, ¶m, 267 unix_io_manager, ¤t_fs); 268 if (retval) { 269 com_err(argv[1], retval, "while initializing filesystem"); 270 current_fs = NULL; 271 return; 272 } 273 root = cwd = EXT2_ROOT_INO; 274 return; 275} 276 277static void print_features(struct ext2_super_block * s, FILE *f) 278{ 279 int i, j, printed=0; 280 __u32 *mask = &s->s_feature_compat, m; 281 282 fputs("Filesystem features:", f); 283 for (i=0; i <3; i++,mask++) { 284 for (j=0,m=1; j < 32; j++, m<<=1) { 285 if (*mask & m) { 286 fprintf(f, " %s", e2p_feature2string(i, m)); 287 printed++; 288 } 289 } 290 } 291 if (printed == 0) 292 fputs("(none)", f); 293 fputs("\n", f); 294} 295 296static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask, 297 const char *str, int *first, FILE *f) 298{ 299 if (ext2fs_bg_flags_test(fs, group, mask)) { 300 if (*first) { 301 fputs(" [", f); 302 *first = 0; 303 } else 304 fputs(", ", f); 305 fputs(str, f); 306 } 307} 308 309void do_show_super_stats(int argc, char *argv[]) 310{ 311 dgrp_t i; 312 FILE *out; 313 int c, header_only = 0; 314 int numdirs = 0, first, gdt_csum; 315 316 reset_getopt(); 317 while ((c = getopt (argc, argv, "h")) != EOF) { 318 switch (c) { 319 case 'h': 320 header_only++; 321 break; 322 default: 323 goto print_usage; 324 } 325 } 326 if (optind != argc) { 327 goto print_usage; 328 } 329 if (check_fs_open(argv[0])) 330 return; 331 out = open_pager(); 332 333 list_super2(current_fs->super, out); 334 for (i=0; i < current_fs->group_desc_count; i++) 335 numdirs += ext2fs_bg_used_dirs_count(current_fs, i); 336 fprintf(out, "Directories: %d\n", numdirs); 337 338 if (header_only) { 339 close_pager(out); 340 return; 341 } 342 343 gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, 344 EXT4_FEATURE_RO_COMPAT_GDT_CSUM); 345 for (i = 0; i < current_fs->group_desc_count; i++) { 346 fprintf(out, " Group %2d: block bitmap at %llu, " 347 "inode bitmap at %llu, " 348 "inode table at %llu\n" 349 " %u free %s, " 350 "%u free %s, " 351 "%u used %s%s", 352 i, ext2fs_block_bitmap_loc(current_fs, i), 353 ext2fs_inode_bitmap_loc(current_fs, i), 354 ext2fs_inode_table_loc(current_fs, i), 355 ext2fs_bg_free_blocks_count(current_fs, i), 356 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ? 357 "blocks" : "block", 358 ext2fs_bg_free_inodes_count(current_fs, i), 359 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ? 360 "inodes" : "inode", 361 ext2fs_bg_used_dirs_count(current_fs, i), 362 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories" 363 : "directory", gdt_csum ? ", " : "\n"); 364 if (gdt_csum) 365 fprintf(out, "%u unused %s\n", 366 ext2fs_bg_itable_unused(current_fs, i), 367 ext2fs_bg_itable_unused(current_fs, i) != 1 ? 368 "inodes" : "inode"); 369 first = 1; 370 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init", 371 &first, out); 372 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init", 373 &first, out); 374 if (gdt_csum) { 375 fprintf(out, "%sChecksum 0x%04x", 376 first ? " [":", ", ext2fs_bg_checksum(current_fs, i)); 377 first = 0; 378 } 379 if (!first) 380 fputs("]\n", out); 381 } 382 close_pager(out); 383 return; 384print_usage: 385 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]); 386} 387 388void do_dirty_filesys(int argc EXT2FS_ATTR((unused)), 389 char **argv EXT2FS_ATTR((unused))) 390{ 391 if (check_fs_open(argv[0])) 392 return; 393 if (check_fs_read_write(argv[0])) 394 return; 395 396 if (argv[1] && !strcmp(argv[1], "-clean")) 397 current_fs->super->s_state |= EXT2_VALID_FS; 398 else 399 current_fs->super->s_state &= ~EXT2_VALID_FS; 400 ext2fs_mark_super_dirty(current_fs); 401} 402 403struct list_blocks_struct { 404 FILE *f; 405 e2_blkcnt_t total; 406 blk64_t first_block, last_block; 407 e2_blkcnt_t first_bcnt, last_bcnt; 408 e2_blkcnt_t first; 409}; 410 411static void finish_range(struct list_blocks_struct *lb) 412{ 413 if (lb->first_block == 0) 414 return; 415 if (lb->first) 416 lb->first = 0; 417 else 418 fprintf(lb->f, ", "); 419 if (lb->first_block == lb->last_block) 420 fprintf(lb->f, "(%lld):%llu", 421 (long long)lb->first_bcnt, lb->first_block); 422 else 423 fprintf(lb->f, "(%lld-%lld):%llu-%llu", 424 (long long)lb->first_bcnt, (long long)lb->last_bcnt, 425 lb->first_block, lb->last_block); 426 lb->first_block = 0; 427} 428 429static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), 430 blk64_t *blocknr, e2_blkcnt_t blockcnt, 431 blk64_t ref_block EXT2FS_ATTR((unused)), 432 int ref_offset EXT2FS_ATTR((unused)), 433 void *private) 434{ 435 struct list_blocks_struct *lb = (struct list_blocks_struct *) private; 436 437 lb->total++; 438 if (blockcnt >= 0) { 439 /* 440 * See if we can add on to the existing range (if it exists) 441 */ 442 if (lb->first_block && 443 (lb->last_block+1 == *blocknr) && 444 (lb->last_bcnt+1 == blockcnt)) { 445 lb->last_block = *blocknr; 446 lb->last_bcnt = blockcnt; 447 return 0; 448 } 449 /* 450 * Start a new range. 451 */ 452 finish_range(lb); 453 lb->first_block = lb->last_block = *blocknr; 454 lb->first_bcnt = lb->last_bcnt = blockcnt; 455 return 0; 456 } 457 /* 458 * Not a normal block. Always force a new range. 459 */ 460 finish_range(lb); 461 if (lb->first) 462 lb->first = 0; 463 else 464 fprintf(lb->f, ", "); 465 if (blockcnt == -1) 466 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr); 467 else if (blockcnt == -2) 468 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr); 469 else if (blockcnt == -3) 470 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr); 471 return 0; 472} 473 474static void dump_xattr_string(FILE *out, const char *str, int len) 475{ 476 int printable = 0; 477 int i; 478 479 /* check: is string "printable enough?" */ 480 for (i = 0; i < len; i++) 481 if (isprint(str[i])) 482 printable++; 483 484 if (printable <= len*7/8) 485 printable = 0; 486 487 for (i = 0; i < len; i++) 488 if (printable) 489 fprintf(out, isprint(str[i]) ? "%c" : "\\%03o", 490 (unsigned char)str[i]); 491 else 492 fprintf(out, "%02x ", (unsigned char)str[i]); 493} 494 495static void internal_dump_inode_extra(FILE *out, 496 const char *prefix EXT2FS_ATTR((unused)), 497 ext2_ino_t inode_num EXT2FS_ATTR((unused)), 498 struct ext2_inode_large *inode) 499{ 500 struct ext2_ext_attr_entry *entry; 501 __u32 *magic; 502 char *start, *end; 503 unsigned int storage_size; 504 505 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize); 506 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) - 507 EXT2_GOOD_OLD_INODE_SIZE) { 508 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n", 509 inode->i_extra_isize); 510 return; 511 } 512 storage_size = EXT2_INODE_SIZE(current_fs->super) - 513 EXT2_GOOD_OLD_INODE_SIZE - 514 inode->i_extra_isize; 515 magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE + 516 inode->i_extra_isize); 517 if (*magic == EXT2_EXT_ATTR_MAGIC) { 518 fprintf(out, "Extended attributes stored in inode body: \n"); 519 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super); 520 start = (char *) magic + sizeof(__u32); 521 entry = (struct ext2_ext_attr_entry *) start; 522 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) { 523 struct ext2_ext_attr_entry *next = 524 EXT2_EXT_ATTR_NEXT(entry); 525 if (entry->e_value_size > storage_size || 526 (char *) next >= end) { 527 fprintf(out, "invalid EA entry in inode\n"); 528 return; 529 } 530 fprintf(out, " "); 531 dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry), 532 entry->e_name_len); 533 fprintf(out, " = \""); 534 dump_xattr_string(out, start + entry->e_value_offs, 535 entry->e_value_size); 536 fprintf(out, "\" (%u)\n", entry->e_value_size); 537 entry = next; 538 } 539 } 540} 541 542static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode) 543{ 544 struct list_blocks_struct lb; 545 546 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix); 547 lb.total = 0; 548 lb.first_block = 0; 549 lb.f = f; 550 lb.first = 1; 551 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 552 list_blocks_proc, (void *)&lb); 553 finish_range(&lb); 554 if (lb.total) 555 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total); 556 fprintf(f,"\n"); 557} 558 559static int int_log10(unsigned long long arg) 560{ 561 int l = 0; 562 563 arg = arg / 10; 564 while (arg) { 565 l++; 566 arg = arg / 10; 567 } 568 return l; 569} 570 571#define DUMP_LEAF_EXTENTS 0x01 572#define DUMP_NODE_EXTENTS 0x02 573#define DUMP_EXTENT_TABLE 0x04 574 575static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino, 576 int flags, int logical_width, int physical_width) 577{ 578 ext2_extent_handle_t handle; 579 struct ext2fs_extent extent; 580 struct ext2_extent_info info; 581 int op = EXT2_EXTENT_ROOT; 582 unsigned int printed = 0; 583 errcode_t errcode; 584 585 errcode = ext2fs_extent_open(current_fs, ino, &handle); 586 if (errcode) 587 return; 588 589 if (flags & DUMP_EXTENT_TABLE) 590 fprintf(f, "Level Entries %*s %*s Length Flags\n", 591 (logical_width*2)+3, "Logical", 592 (physical_width*2)+3, "Physical"); 593 else 594 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix); 595 596 while (1) { 597 errcode = ext2fs_extent_get(handle, op, &extent); 598 599 if (errcode) 600 break; 601 602 op = EXT2_EXTENT_NEXT; 603 604 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 605 continue; 606 607 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) { 608 if ((flags & DUMP_LEAF_EXTENTS) == 0) 609 continue; 610 } else { 611 if ((flags & DUMP_NODE_EXTENTS) == 0) 612 continue; 613 } 614 615 errcode = ext2fs_extent_get_info(handle, &info); 616 if (errcode) 617 continue; 618 619 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) { 620 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) 621 continue; 622 623 if (flags & DUMP_EXTENT_TABLE) { 624 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 625 "%*llu%*s %6u\n", 626 info.curr_level, info.max_depth, 627 info.curr_entry, info.num_entries, 628 logical_width, 629 extent.e_lblk, 630 logical_width, 631 extent.e_lblk + (extent.e_len - 1), 632 physical_width, 633 extent.e_pblk, 634 physical_width+3, "", extent.e_len); 635 continue; 636 } 637 638 fprintf(f, "%s(ETB%d):%lld", 639 printed ? ", " : "", info.curr_level, 640 extent.e_pblk); 641 printed = 1; 642 continue; 643 } 644 645 if (flags & DUMP_EXTENT_TABLE) { 646 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " 647 "%*llu - %*llu %6u %s\n", 648 info.curr_level, info.max_depth, 649 info.curr_entry, info.num_entries, 650 logical_width, 651 extent.e_lblk, 652 logical_width, 653 extent.e_lblk + (extent.e_len - 1), 654 physical_width, 655 extent.e_pblk, 656 physical_width, 657 extent.e_pblk + (extent.e_len - 1), 658 extent.e_len, 659 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 660 "Uninit" : ""); 661 continue; 662 } 663 664 if (extent.e_len == 0) 665 continue; 666 else if (extent.e_len == 1) 667 fprintf(f, 668 "%s(%lld%s):%lld", 669 printed ? ", " : "", 670 extent.e_lblk, 671 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 672 "[u]" : "", 673 extent.e_pblk); 674 else 675 fprintf(f, 676 "%s(%lld-%lld%s):%lld-%lld", 677 printed ? ", " : "", 678 extent.e_lblk, 679 extent.e_lblk + (extent.e_len - 1), 680 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? 681 "[u]" : "", 682 extent.e_pblk, 683 extent.e_pblk + (extent.e_len - 1)); 684 printed = 1; 685 } 686 if (printed) 687 fprintf(f, "\n"); 688} 689 690void internal_dump_inode(FILE *out, const char *prefix, 691 ext2_ino_t inode_num, struct ext2_inode *inode, 692 int do_dump_blocks) 693{ 694 const char *i_type; 695 char frag, fsize; 696 int os = current_fs->super->s_creator_os; 697 struct ext2_inode_large *large_inode; 698 int is_large_inode = 0; 699 700 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 701 is_large_inode = 1; 702 large_inode = (struct ext2_inode_large *) inode; 703 704 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory"; 705 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular"; 706 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink"; 707 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special"; 708 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special"; 709 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO"; 710 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket"; 711 else i_type = "bad type"; 712 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type); 713 fprintf(out, "%sMode: %04o Flags: 0x%x\n", 714 prefix, inode->i_mode & 0777, inode->i_flags); 715 if (is_large_inode && large_inode->i_extra_isize >= 24) { 716 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n", 717 prefix, inode->i_generation, large_inode->i_version_hi, 718 inode->osd1.linux1.l_i_version); 719 } else { 720 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix, 721 inode->i_generation, inode->osd1.linux1.l_i_version); 722 } 723 fprintf(out, "%sUser: %5d Group: %5d Size: ", 724 prefix, inode_uid(*inode), inode_gid(*inode)); 725 if (LINUX_S_ISREG(inode->i_mode)) { 726 unsigned long long i_size = (inode->i_size | 727 ((unsigned long long)inode->i_size_high << 32)); 728 729 fprintf(out, "%llu\n", i_size); 730 } else 731 fprintf(out, "%d\n", inode->i_size); 732 if (os == EXT2_OS_HURD) 733 fprintf(out, 734 "%sFile ACL: %d Directory ACL: %d Translator: %d\n", 735 prefix, 736 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0, 737 inode->osd1.hurd1.h_i_translator); 738 else 739 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n", 740 prefix, 741 inode->i_file_acl | ((long long) 742 (inode->osd2.linux2.l_i_file_acl_high) << 32), 743 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0); 744 if (os == EXT2_OS_LINUX) 745 fprintf(out, "%sLinks: %d Blockcount: %llu\n", 746 prefix, inode->i_links_count, 747 (((unsigned long long) 748 inode->osd2.linux2.l_i_blocks_hi << 32)) + 749 inode->i_blocks); 750 else 751 fprintf(out, "%sLinks: %d Blockcount: %u\n", 752 prefix, inode->i_links_count, inode->i_blocks); 753 switch (os) { 754 case EXT2_OS_HURD: 755 frag = inode->osd2.hurd2.h_i_frag; 756 fsize = inode->osd2.hurd2.h_i_fsize; 757 break; 758 default: 759 frag = fsize = 0; 760 } 761 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n", 762 prefix, inode->i_faddr, frag, fsize); 763 if (is_large_inode && large_inode->i_extra_isize >= 24) { 764 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix, 765 inode->i_ctime, large_inode->i_ctime_extra, 766 time_to_string(inode->i_ctime)); 767 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix, 768 inode->i_atime, large_inode->i_atime_extra, 769 time_to_string(inode->i_atime)); 770 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix, 771 inode->i_mtime, large_inode->i_mtime_extra, 772 time_to_string(inode->i_mtime)); 773 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix, 774 large_inode->i_crtime, large_inode->i_crtime_extra, 775 time_to_string(large_inode->i_crtime)); 776 } else { 777 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime, 778 time_to_string(inode->i_ctime)); 779 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime, 780 time_to_string(inode->i_atime)); 781 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime, 782 time_to_string(inode->i_mtime)); 783 } 784 if (inode->i_dtime) 785 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime, 786 time_to_string(inode->i_dtime)); 787 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) 788 internal_dump_inode_extra(out, prefix, inode_num, 789 (struct ext2_inode_large *) inode); 790 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0) 791 fprintf(out, "%sFast_link_dest: %.*s\n", prefix, 792 (int) inode->i_size, (char *)inode->i_block); 793 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) { 794 int major, minor; 795 const char *devnote; 796 797 if (inode->i_block[0]) { 798 major = (inode->i_block[0] >> 8) & 255; 799 minor = inode->i_block[0] & 255; 800 devnote = ""; 801 } else { 802 major = (inode->i_block[1] & 0xfff00) >> 8; 803 minor = ((inode->i_block[1] & 0xff) | 804 ((inode->i_block[1] >> 12) & 0xfff00)); 805 devnote = "(New-style) "; 806 } 807 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n", 808 devnote, major, minor, major, minor); 809 } else if (do_dump_blocks) { 810 if (inode->i_flags & EXT4_EXTENTS_FL) 811 dump_extents(out, prefix, inode_num, 812 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0); 813 else 814 dump_blocks(out, prefix, inode_num); 815 } 816} 817 818static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode) 819{ 820 FILE *out; 821 822 out = open_pager(); 823 internal_dump_inode(out, "", inode_num, inode, 1); 824 close_pager(out); 825} 826 827void do_stat(int argc, char *argv[]) 828{ 829 ext2_ino_t inode; 830 struct ext2_inode * inode_buf; 831 832 if (check_fs_open(argv[0])) 833 return; 834 835 inode_buf = (struct ext2_inode *) 836 malloc(EXT2_INODE_SIZE(current_fs->super)); 837 if (!inode_buf) { 838 fprintf(stderr, "do_stat: can't allocate buffer\n"); 839 return; 840 } 841 842 if (common_inode_args_process(argc, argv, &inode, 0)) { 843 free(inode_buf); 844 return; 845 } 846 847 if (debugfs_read_inode_full(inode, inode_buf, argv[0], 848 EXT2_INODE_SIZE(current_fs->super))) { 849 free(inode_buf); 850 return; 851 } 852 853 dump_inode(inode, inode_buf); 854 free(inode_buf); 855 return; 856} 857 858void do_dump_extents(int argc, char *argv[]) 859{ 860 struct ext2_inode inode; 861 ext2_ino_t ino; 862 FILE *out; 863 int c, flags = 0; 864 int logical_width; 865 int physical_width; 866 867 reset_getopt(); 868 while ((c = getopt(argc, argv, "nl")) != EOF) { 869 switch (c) { 870 case 'n': 871 flags |= DUMP_NODE_EXTENTS; 872 break; 873 case 'l': 874 flags |= DUMP_LEAF_EXTENTS; 875 break; 876 } 877 } 878 879 if (argc != optind+1) { 880 print_usage: 881 com_err(0, 0, "Usage: dump_extents [-n] [-l] file"); 882 return; 883 } 884 885 if (flags == 0) 886 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS; 887 flags |= DUMP_EXTENT_TABLE; 888 889 if (check_fs_open(argv[0])) 890 return; 891 892 ino = string_to_inode(argv[optind]); 893 if (ino == 0) 894 return; 895 896 if (debugfs_read_inode(ino, &inode, argv[0])) 897 return; 898 899 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) { 900 fprintf(stderr, "%s: does not uses extent block maps\n", 901 argv[optind]); 902 return; 903 } 904 905 logical_width = int_log10(((inode.i_size | 906 (__u64) inode.i_size_high << 32) + 907 current_fs->blocksize - 1) / 908 current_fs->blocksize) + 1; 909 if (logical_width < 5) 910 logical_width = 5; 911 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1; 912 if (physical_width < 5) 913 physical_width = 5; 914 915 out = open_pager(); 916 dump_extents(out, "", ino, flags, logical_width, physical_width); 917 close_pager(out); 918 return; 919} 920 921void do_chroot(int argc, char *argv[]) 922{ 923 ext2_ino_t inode; 924 int retval; 925 926 if (common_inode_args_process(argc, argv, &inode, 0)) 927 return; 928 929 retval = ext2fs_check_directory(current_fs, inode); 930 if (retval) { 931 com_err(argv[1], retval, 0); 932 return; 933 } 934 root = inode; 935} 936 937void do_clri(int argc, char *argv[]) 938{ 939 ext2_ino_t inode; 940 struct ext2_inode inode_buf; 941 942 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 943 return; 944 945 if (debugfs_read_inode(inode, &inode_buf, argv[0])) 946 return; 947 memset(&inode_buf, 0, sizeof(inode_buf)); 948 if (debugfs_write_inode(inode, &inode_buf, argv[0])) 949 return; 950} 951 952void do_freei(int argc, char *argv[]) 953{ 954 ext2_ino_t inode; 955 956 if (common_inode_args_process(argc, argv, &inode, 957 CHECK_FS_RW | CHECK_FS_BITMAPS)) 958 return; 959 960 if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 961 com_err(argv[0], 0, "Warning: inode already clear"); 962 ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode); 963 ext2fs_mark_ib_dirty(current_fs); 964} 965 966void do_seti(int argc, char *argv[]) 967{ 968 ext2_ino_t inode; 969 970 if (common_inode_args_process(argc, argv, &inode, 971 CHECK_FS_RW | CHECK_FS_BITMAPS)) 972 return; 973 974 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 975 com_err(argv[0], 0, "Warning: inode already set"); 976 ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode); 977 ext2fs_mark_ib_dirty(current_fs); 978} 979 980void do_testi(int argc, char *argv[]) 981{ 982 ext2_ino_t inode; 983 984 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS)) 985 return; 986 987 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) 988 printf("Inode %u is marked in use\n", inode); 989 else 990 printf("Inode %u is not in use\n", inode); 991} 992 993void do_freeb(int argc, char *argv[]) 994{ 995 blk64_t block; 996 blk64_t count = 1; 997 998 if (common_block_args_process(argc, argv, &block, &count)) 999 return; 1000 if (check_fs_read_write(argv[0])) 1001 return; 1002 while (count-- > 0) { 1003 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1004 com_err(argv[0], 0, "Warning: block %llu already clear", 1005 block); 1006 ext2fs_unmark_block_bitmap2(current_fs->block_map,block); 1007 block++; 1008 } 1009 ext2fs_mark_bb_dirty(current_fs); 1010} 1011 1012void do_setb(int argc, char *argv[]) 1013{ 1014 blk64_t block; 1015 blk64_t count = 1; 1016 1017 if (common_block_args_process(argc, argv, &block, &count)) 1018 return; 1019 if (check_fs_read_write(argv[0])) 1020 return; 1021 while (count-- > 0) { 1022 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1023 com_err(argv[0], 0, "Warning: block %llu already set", 1024 block); 1025 ext2fs_mark_block_bitmap2(current_fs->block_map,block); 1026 block++; 1027 } 1028 ext2fs_mark_bb_dirty(current_fs); 1029} 1030 1031void do_testb(int argc, char *argv[]) 1032{ 1033 blk64_t block; 1034 blk64_t count = 1; 1035 1036 if (common_block_args_process(argc, argv, &block, &count)) 1037 return; 1038 while (count-- > 0) { 1039 if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) 1040 printf("Block %llu marked in use\n", block); 1041 else 1042 printf("Block %llu not in use\n", block); 1043 block++; 1044 } 1045} 1046 1047static void modify_u8(char *com, const char *prompt, 1048 const char *format, __u8 *val) 1049{ 1050 char buf[200]; 1051 unsigned long v; 1052 char *tmp; 1053 1054 sprintf(buf, format, *val); 1055 printf("%30s [%s] ", prompt, buf); 1056 if (!fgets(buf, sizeof(buf), stdin)) 1057 return; 1058 if (buf[strlen (buf) - 1] == '\n') 1059 buf[strlen (buf) - 1] = '\0'; 1060 if (!buf[0]) 1061 return; 1062 v = strtoul(buf, &tmp, 0); 1063 if (*tmp) 1064 com_err(com, 0, "Bad value - %s", buf); 1065 else 1066 *val = v; 1067} 1068 1069static void modify_u16(char *com, const char *prompt, 1070 const char *format, __u16 *val) 1071{ 1072 char buf[200]; 1073 unsigned long v; 1074 char *tmp; 1075 1076 sprintf(buf, format, *val); 1077 printf("%30s [%s] ", prompt, buf); 1078 if (!fgets(buf, sizeof(buf), stdin)) 1079 return; 1080 if (buf[strlen (buf) - 1] == '\n') 1081 buf[strlen (buf) - 1] = '\0'; 1082 if (!buf[0]) 1083 return; 1084 v = strtoul(buf, &tmp, 0); 1085 if (*tmp) 1086 com_err(com, 0, "Bad value - %s", buf); 1087 else 1088 *val = v; 1089} 1090 1091static void modify_u32(char *com, const char *prompt, 1092 const char *format, __u32 *val) 1093{ 1094 char buf[200]; 1095 unsigned long v; 1096 char *tmp; 1097 1098 sprintf(buf, format, *val); 1099 printf("%30s [%s] ", prompt, buf); 1100 if (!fgets(buf, sizeof(buf), stdin)) 1101 return; 1102 if (buf[strlen (buf) - 1] == '\n') 1103 buf[strlen (buf) - 1] = '\0'; 1104 if (!buf[0]) 1105 return; 1106 v = strtoul(buf, &tmp, 0); 1107 if (*tmp) 1108 com_err(com, 0, "Bad value - %s", buf); 1109 else 1110 *val = v; 1111} 1112 1113 1114void do_modify_inode(int argc, char *argv[]) 1115{ 1116 struct ext2_inode inode; 1117 ext2_ino_t inode_num; 1118 int i; 1119 unsigned char *frag, *fsize; 1120 char buf[80]; 1121 int os; 1122 const char *hex_format = "0x%x"; 1123 const char *octal_format = "0%o"; 1124 const char *decimal_format = "%d"; 1125 const char *unsignedlong_format = "%lu"; 1126 1127 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1128 return; 1129 1130 os = current_fs->super->s_creator_os; 1131 1132 if (debugfs_read_inode(inode_num, &inode, argv[1])) 1133 return; 1134 1135 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode); 1136 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid); 1137 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid); 1138 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size); 1139 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime); 1140 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime); 1141 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime); 1142 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime); 1143 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count); 1144 if (os == EXT2_OS_LINUX) 1145 modify_u16(argv[0], "Block count high", unsignedlong_format, 1146 &inode.osd2.linux2.l_i_blocks_hi); 1147 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks); 1148 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags); 1149 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation); 1150#if 0 1151 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1); 1152#endif 1153 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl); 1154 if (LINUX_S_ISDIR(inode.i_mode)) 1155 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl); 1156 else 1157 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high); 1158 1159 if (os == EXT2_OS_HURD) 1160 modify_u32(argv[0], "Translator Block", 1161 decimal_format, &inode.osd1.hurd1.h_i_translator); 1162 1163 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr); 1164 switch (os) { 1165 case EXT2_OS_HURD: 1166 frag = &inode.osd2.hurd2.h_i_frag; 1167 fsize = &inode.osd2.hurd2.h_i_fsize; 1168 break; 1169 default: 1170 frag = fsize = 0; 1171 } 1172 if (frag) 1173 modify_u8(argv[0], "Fragment number", decimal_format, frag); 1174 if (fsize) 1175 modify_u8(argv[0], "Fragment size", decimal_format, fsize); 1176 1177 for (i=0; i < EXT2_NDIR_BLOCKS; i++) { 1178 sprintf(buf, "Direct Block #%d", i); 1179 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]); 1180 } 1181 modify_u32(argv[0], "Indirect Block", decimal_format, 1182 &inode.i_block[EXT2_IND_BLOCK]); 1183 modify_u32(argv[0], "Double Indirect Block", decimal_format, 1184 &inode.i_block[EXT2_DIND_BLOCK]); 1185 modify_u32(argv[0], "Triple Indirect Block", decimal_format, 1186 &inode.i_block[EXT2_TIND_BLOCK]); 1187 if (debugfs_write_inode(inode_num, &inode, argv[1])) 1188 return; 1189} 1190 1191void do_change_working_dir(int argc, char *argv[]) 1192{ 1193 ext2_ino_t inode; 1194 int retval; 1195 1196 if (common_inode_args_process(argc, argv, &inode, 0)) 1197 return; 1198 1199 retval = ext2fs_check_directory(current_fs, inode); 1200 if (retval) { 1201 com_err(argv[1], retval, 0); 1202 return; 1203 } 1204 cwd = inode; 1205 return; 1206} 1207 1208void do_print_working_directory(int argc, char *argv[]) 1209{ 1210 int retval; 1211 char *pathname = NULL; 1212 1213 if (common_args_process(argc, argv, 1, 1, 1214 "print_working_directory", "", 0)) 1215 return; 1216 1217 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname); 1218 if (retval) { 1219 com_err(argv[0], retval, 1220 "while trying to get pathname of cwd"); 1221 } 1222 printf("[pwd] INODE: %6u PATH: %s\n", 1223 cwd, pathname ? pathname : "NULL"); 1224 if (pathname) { 1225 free(pathname); 1226 pathname = NULL; 1227 } 1228 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname); 1229 if (retval) { 1230 com_err(argv[0], retval, 1231 "while trying to get pathname of root"); 1232 } 1233 printf("[root] INODE: %6u PATH: %s\n", 1234 root, pathname ? pathname : "NULL"); 1235 if (pathname) { 1236 free(pathname); 1237 pathname = NULL; 1238 } 1239 return; 1240} 1241 1242/* 1243 * Given a mode, return the ext2 file type 1244 */ 1245static int ext2_file_type(unsigned int mode) 1246{ 1247 if (LINUX_S_ISREG(mode)) 1248 return EXT2_FT_REG_FILE; 1249 1250 if (LINUX_S_ISDIR(mode)) 1251 return EXT2_FT_DIR; 1252 1253 if (LINUX_S_ISCHR(mode)) 1254 return EXT2_FT_CHRDEV; 1255 1256 if (LINUX_S_ISBLK(mode)) 1257 return EXT2_FT_BLKDEV; 1258 1259 if (LINUX_S_ISLNK(mode)) 1260 return EXT2_FT_SYMLINK; 1261 1262 if (LINUX_S_ISFIFO(mode)) 1263 return EXT2_FT_FIFO; 1264 1265 if (LINUX_S_ISSOCK(mode)) 1266 return EXT2_FT_SOCK; 1267 1268 return 0; 1269} 1270 1271static void make_link(char *sourcename, char *destname) 1272{ 1273 ext2_ino_t ino; 1274 struct ext2_inode inode; 1275 int retval; 1276 ext2_ino_t dir; 1277 char *dest, *cp, *base_name; 1278 1279 /* 1280 * Get the source inode 1281 */ 1282 ino = string_to_inode(sourcename); 1283 if (!ino) 1284 return; 1285 base_name = strrchr(sourcename, '/'); 1286 if (base_name) 1287 base_name++; 1288 else 1289 base_name = sourcename; 1290 /* 1291 * Figure out the destination. First see if it exists and is 1292 * a directory. 1293 */ 1294 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir))) 1295 dest = base_name; 1296 else { 1297 /* 1298 * OK, it doesn't exist. See if it is 1299 * '<dir>/basename' or 'basename' 1300 */ 1301 cp = strrchr(destname, '/'); 1302 if (cp) { 1303 *cp = 0; 1304 dir = string_to_inode(destname); 1305 if (!dir) 1306 return; 1307 dest = cp+1; 1308 } else { 1309 dir = cwd; 1310 dest = destname; 1311 } 1312 } 1313 1314 if (debugfs_read_inode(ino, &inode, sourcename)) 1315 return; 1316 1317 retval = ext2fs_link(current_fs, dir, dest, ino, 1318 ext2_file_type(inode.i_mode)); 1319 if (retval) 1320 com_err("make_link", retval, 0); 1321 return; 1322} 1323 1324 1325void do_link(int argc, char *argv[]) 1326{ 1327 if (common_args_process(argc, argv, 3, 3, "link", 1328 "<source file> <dest_name>", CHECK_FS_RW)) 1329 return; 1330 1331 make_link(argv[1], argv[2]); 1332} 1333 1334static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 1335 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1336 blk64_t ref_block EXT2FS_ATTR((unused)), 1337 int ref_offset EXT2FS_ATTR((unused)), 1338 void *private EXT2FS_ATTR((unused))) 1339{ 1340 blk64_t block; 1341 1342 block = *blocknr; 1343 ext2fs_block_alloc_stats2(fs, block, +1); 1344 return 0; 1345} 1346 1347void do_undel(int argc, char *argv[]) 1348{ 1349 ext2_ino_t ino; 1350 struct ext2_inode inode; 1351 1352 if (common_args_process(argc, argv, 2, 3, "undelete", 1353 "<inode_num> [dest_name]", 1354 CHECK_FS_RW | CHECK_FS_BITMAPS)) 1355 return; 1356 1357 ino = string_to_inode(argv[1]); 1358 if (!ino) 1359 return; 1360 1361 if (debugfs_read_inode(ino, &inode, argv[1])) 1362 return; 1363 1364 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) { 1365 com_err(argv[1], 0, "Inode is not marked as deleted"); 1366 return; 1367 } 1368 1369 /* 1370 * XXX this function doesn't handle changing the links count on the 1371 * parent directory when undeleting a directory. 1372 */ 1373 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1; 1374 inode.i_dtime = 0; 1375 1376 if (debugfs_write_inode(ino, &inode, argv[0])) 1377 return; 1378 1379 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL, 1380 mark_blocks_proc, NULL); 1381 1382 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0); 1383 1384 if (argc > 2) 1385 make_link(argv[1], argv[2]); 1386} 1387 1388static void unlink_file_by_name(char *filename) 1389{ 1390 int retval; 1391 ext2_ino_t dir; 1392 char *base_name; 1393 1394 base_name = strrchr(filename, '/'); 1395 if (base_name) { 1396 *base_name++ = '\0'; 1397 dir = string_to_inode(filename); 1398 if (!dir) 1399 return; 1400 } else { 1401 dir = cwd; 1402 base_name = filename; 1403 } 1404 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0); 1405 if (retval) 1406 com_err("unlink_file_by_name", retval, 0); 1407 return; 1408} 1409 1410void do_unlink(int argc, char *argv[]) 1411{ 1412 if (common_args_process(argc, argv, 2, 2, "link", 1413 "<pathname>", CHECK_FS_RW)) 1414 return; 1415 1416 unlink_file_by_name(argv[1]); 1417} 1418 1419void do_find_free_block(int argc, char *argv[]) 1420{ 1421 blk64_t free_blk, goal, first_free = 0; 1422 int count; 1423 errcode_t retval; 1424 char *tmp; 1425 1426 if ((argc > 3) || (argc==2 && *argv[1] == '?')) { 1427 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]"); 1428 return; 1429 } 1430 if (check_fs_open(argv[0])) 1431 return; 1432 1433 if (argc > 1) { 1434 count = strtol(argv[1],&tmp,0); 1435 if (*tmp) { 1436 com_err(argv[0], 0, "Bad count - %s", argv[1]); 1437 return; 1438 } 1439 } else 1440 count = 1; 1441 1442 if (argc > 2) { 1443 goal = strtol(argv[2], &tmp, 0); 1444 if (*tmp) { 1445 com_err(argv[0], 0, "Bad goal - %s", argv[1]); 1446 return; 1447 } 1448 } 1449 else 1450 goal = current_fs->super->s_first_data_block; 1451 1452 printf("Free blocks found: "); 1453 free_blk = goal - 1; 1454 while (count-- > 0) { 1455 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0, 1456 &free_blk); 1457 if (first_free) { 1458 if (first_free == free_blk) 1459 break; 1460 } else 1461 first_free = free_blk; 1462 if (retval) { 1463 com_err("ext2fs_new_block", retval, 0); 1464 return; 1465 } else 1466 printf("%llu ", free_blk); 1467 } 1468 printf("\n"); 1469} 1470 1471void do_find_free_inode(int argc, char *argv[]) 1472{ 1473 ext2_ino_t free_inode, dir; 1474 int mode; 1475 int retval; 1476 char *tmp; 1477 1478 if (argc > 3 || (argc>1 && *argv[1] == '?')) { 1479 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]"); 1480 return; 1481 } 1482 if (check_fs_open(argv[0])) 1483 return; 1484 1485 if (argc > 1) { 1486 dir = strtol(argv[1], &tmp, 0); 1487 if (*tmp) { 1488 com_err(argv[0], 0, "Bad dir - %s", argv[1]); 1489 return; 1490 } 1491 } 1492 else 1493 dir = root; 1494 if (argc > 2) { 1495 mode = strtol(argv[2], &tmp, 0); 1496 if (*tmp) { 1497 com_err(argv[0], 0, "Bad mode - %s", argv[2]); 1498 return; 1499 } 1500 } else 1501 mode = 010755; 1502 1503 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode); 1504 if (retval) 1505 com_err("ext2fs_new_inode", retval, 0); 1506 else 1507 printf("Free inode found: %u\n", free_inode); 1508} 1509 1510static errcode_t copy_file(int fd, ext2_ino_t newfile) 1511{ 1512 ext2_file_t e2_file; 1513 errcode_t retval; 1514 int got; 1515 unsigned int written; 1516 char buf[8192]; 1517 char *ptr; 1518 1519 retval = ext2fs_file_open(current_fs, newfile, 1520 EXT2_FILE_WRITE, &e2_file); 1521 if (retval) 1522 return retval; 1523 1524 while (1) { 1525 got = read(fd, buf, sizeof(buf)); 1526 if (got == 0) 1527 break; 1528 if (got < 0) { 1529 retval = errno; 1530 goto fail; 1531 } 1532 ptr = buf; 1533 while (got > 0) { 1534 retval = ext2fs_file_write(e2_file, ptr, 1535 got, &written); 1536 if (retval) 1537 goto fail; 1538 1539 got -= written; 1540 ptr += written; 1541 } 1542 } 1543 retval = ext2fs_file_close(e2_file); 1544 return retval; 1545 1546fail: 1547 (void) ext2fs_file_close(e2_file); 1548 return retval; 1549} 1550 1551 1552void do_write(int argc, char *argv[]) 1553{ 1554 int fd; 1555 struct stat statbuf; 1556 ext2_ino_t newfile; 1557 errcode_t retval; 1558 struct ext2_inode inode; 1559 1560 if (common_args_process(argc, argv, 3, 3, "write", 1561 "<native file> <new file>", CHECK_FS_RW)) 1562 return; 1563 1564 fd = open(argv[1], O_RDONLY); 1565 if (fd < 0) { 1566 com_err(argv[1], errno, 0); 1567 return; 1568 } 1569 if (fstat(fd, &statbuf) < 0) { 1570 com_err(argv[1], errno, 0); 1571 close(fd); 1572 return; 1573 } 1574 1575 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile); 1576 if (retval == 0) { 1577 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]); 1578 close(fd); 1579 return; 1580 } 1581 1582 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1583 if (retval) { 1584 com_err(argv[0], retval, 0); 1585 close(fd); 1586 return; 1587 } 1588 printf("Allocated inode: %u\n", newfile); 1589 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1590 EXT2_FT_REG_FILE); 1591 if (retval == EXT2_ET_DIR_NO_SPACE) { 1592 retval = ext2fs_expand_dir(current_fs, cwd); 1593 if (retval) { 1594 com_err(argv[0], retval, "while expanding directory"); 1595 close(fd); 1596 return; 1597 } 1598 retval = ext2fs_link(current_fs, cwd, argv[2], newfile, 1599 EXT2_FT_REG_FILE); 1600 } 1601 if (retval) { 1602 com_err(argv[2], retval, 0); 1603 close(fd); 1604 return; 1605 } 1606 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1607 com_err(argv[0], 0, "Warning: inode already set"); 1608 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0); 1609 memset(&inode, 0, sizeof(inode)); 1610 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG; 1611 inode.i_atime = inode.i_ctime = inode.i_mtime = 1612 current_fs->now ? current_fs->now : time(0); 1613 inode.i_links_count = 1; 1614 inode.i_size = statbuf.st_size; 1615 if (current_fs->super->s_feature_incompat & 1616 EXT3_FEATURE_INCOMPAT_EXTENTS) 1617 inode.i_flags |= EXT4_EXTENTS_FL; 1618 if (debugfs_write_new_inode(newfile, &inode, argv[0])) { 1619 close(fd); 1620 return; 1621 } 1622 if (LINUX_S_ISREG(inode.i_mode)) { 1623 retval = copy_file(fd, newfile); 1624 if (retval) 1625 com_err("copy_file", retval, 0); 1626 } 1627 close(fd); 1628} 1629 1630void do_mknod(int argc, char *argv[]) 1631{ 1632 unsigned long mode, major, minor; 1633 ext2_ino_t newfile; 1634 errcode_t retval; 1635 struct ext2_inode inode; 1636 int filetype, nr; 1637 1638 if (check_fs_open(argv[0])) 1639 return; 1640 if (argc < 3 || argv[2][1]) { 1641 usage: 1642 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]"); 1643 return; 1644 } 1645 mode = minor = major = 0; 1646 switch (argv[2][0]) { 1647 case 'p': 1648 mode = LINUX_S_IFIFO; 1649 filetype = EXT2_FT_FIFO; 1650 nr = 3; 1651 break; 1652 case 'c': 1653 mode = LINUX_S_IFCHR; 1654 filetype = EXT2_FT_CHRDEV; 1655 nr = 5; 1656 break; 1657 case 'b': 1658 mode = LINUX_S_IFBLK; 1659 filetype = EXT2_FT_BLKDEV; 1660 nr = 5; 1661 break; 1662 default: 1663 filetype = 0; 1664 nr = 0; 1665 } 1666 if (nr == 5) { 1667 major = strtoul(argv[3], argv+3, 0); 1668 minor = strtoul(argv[4], argv+4, 0); 1669 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0]) 1670 nr = 0; 1671 } 1672 if (argc != nr) 1673 goto usage; 1674 if (check_fs_read_write(argv[0])) 1675 return; 1676 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); 1677 if (retval) { 1678 com_err(argv[0], retval, 0); 1679 return; 1680 } 1681 printf("Allocated inode: %u\n", newfile); 1682 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype); 1683 if (retval == EXT2_ET_DIR_NO_SPACE) { 1684 retval = ext2fs_expand_dir(current_fs, cwd); 1685 if (retval) { 1686 com_err(argv[0], retval, "while expanding directory"); 1687 return; 1688 } 1689 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, 1690 filetype); 1691 } 1692 if (retval) { 1693 com_err(argv[1], retval, 0); 1694 return; 1695 } 1696 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) 1697 com_err(argv[0], 0, "Warning: inode already set"); 1698 ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile); 1699 ext2fs_mark_ib_dirty(current_fs); 1700 memset(&inode, 0, sizeof(inode)); 1701 inode.i_mode = mode; 1702 inode.i_atime = inode.i_ctime = inode.i_mtime = 1703 current_fs->now ? current_fs->now : time(0); 1704 if ((major < 256) && (minor < 256)) { 1705 inode.i_block[0] = major*256+minor; 1706 inode.i_block[1] = 0; 1707 } else { 1708 inode.i_block[0] = 0; 1709 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); 1710 } 1711 inode.i_links_count = 1; 1712 if (debugfs_write_new_inode(newfile, &inode, argv[0])) 1713 return; 1714} 1715 1716void do_mkdir(int argc, char *argv[]) 1717{ 1718 char *cp; 1719 ext2_ino_t parent; 1720 char *name; 1721 errcode_t retval; 1722 1723 if (common_args_process(argc, argv, 2, 2, "mkdir", 1724 "<filename>", CHECK_FS_RW)) 1725 return; 1726 1727 cp = strrchr(argv[1], '/'); 1728 if (cp) { 1729 *cp = 0; 1730 parent = string_to_inode(argv[1]); 1731 if (!parent) { 1732 com_err(argv[1], ENOENT, 0); 1733 return; 1734 } 1735 name = cp+1; 1736 } else { 1737 parent = cwd; 1738 name = argv[1]; 1739 } 1740 1741try_again: 1742 retval = ext2fs_mkdir(current_fs, parent, 0, name); 1743 if (retval == EXT2_ET_DIR_NO_SPACE) { 1744 retval = ext2fs_expand_dir(current_fs, parent); 1745 if (retval) { 1746 com_err(argv[0], retval, "while expanding directory"); 1747 return; 1748 } 1749 goto try_again; 1750 } 1751 if (retval) { 1752 com_err("ext2fs_mkdir", retval, 0); 1753 return; 1754 } 1755 1756} 1757 1758static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, 1759 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), 1760 blk64_t ref_block EXT2FS_ATTR((unused)), 1761 int ref_offset EXT2FS_ATTR((unused)), 1762 void *private EXT2FS_ATTR((unused))) 1763{ 1764 blk64_t block; 1765 1766 block = *blocknr; 1767 ext2fs_block_alloc_stats2(fs, block, -1); 1768 return 0; 1769} 1770 1771static void kill_file_by_inode(ext2_ino_t inode) 1772{ 1773 struct ext2_inode inode_buf; 1774 1775 if (debugfs_read_inode(inode, &inode_buf, 0)) 1776 return; 1777 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0); 1778 if (debugfs_write_inode(inode, &inode_buf, 0)) 1779 return; 1780 if (!ext2fs_inode_has_valid_blocks(&inode_buf)) 1781 return; 1782 1783 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, 1784 release_blocks_proc, NULL); 1785 printf("\n"); 1786 ext2fs_inode_alloc_stats2(current_fs, inode, -1, 1787 LINUX_S_ISDIR(inode_buf.i_mode)); 1788} 1789 1790 1791void do_kill_file(int argc, char *argv[]) 1792{ 1793 ext2_ino_t inode_num; 1794 1795 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) 1796 return; 1797 1798 kill_file_by_inode(inode_num); 1799} 1800 1801void do_rm(int argc, char *argv[]) 1802{ 1803 int retval; 1804 ext2_ino_t inode_num; 1805 struct ext2_inode inode; 1806 1807 if (common_args_process(argc, argv, 2, 2, "rm", 1808 "<filename>", CHECK_FS_RW)) 1809 return; 1810 1811 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1812 if (retval) { 1813 com_err(argv[0], retval, "while trying to resolve filename"); 1814 return; 1815 } 1816 1817 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1818 return; 1819 1820 if (LINUX_S_ISDIR(inode.i_mode)) { 1821 com_err(argv[0], 0, "file is a directory"); 1822 return; 1823 } 1824 1825 --inode.i_links_count; 1826 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1827 return; 1828 1829 unlink_file_by_name(argv[1]); 1830 if (inode.i_links_count == 0) 1831 kill_file_by_inode(inode_num); 1832} 1833 1834struct rd_struct { 1835 ext2_ino_t parent; 1836 int empty; 1837}; 1838 1839static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)), 1840 int entry EXT2FS_ATTR((unused)), 1841 struct ext2_dir_entry *dirent, 1842 int offset EXT2FS_ATTR((unused)), 1843 int blocksize EXT2FS_ATTR((unused)), 1844 char *buf EXT2FS_ATTR((unused)), 1845 void *private) 1846{ 1847 struct rd_struct *rds = (struct rd_struct *) private; 1848 1849 if (dirent->inode == 0) 1850 return 0; 1851 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.')) 1852 return 0; 1853 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') && 1854 (dirent->name[1] == '.')) { 1855 rds->parent = dirent->inode; 1856 return 0; 1857 } 1858 rds->empty = 0; 1859 return 0; 1860} 1861 1862void do_rmdir(int argc, char *argv[]) 1863{ 1864 int retval; 1865 ext2_ino_t inode_num; 1866 struct ext2_inode inode; 1867 struct rd_struct rds; 1868 1869 if (common_args_process(argc, argv, 2, 2, "rmdir", 1870 "<filename>", CHECK_FS_RW)) 1871 return; 1872 1873 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); 1874 if (retval) { 1875 com_err(argv[0], retval, "while trying to resolve filename"); 1876 return; 1877 } 1878 1879 if (debugfs_read_inode(inode_num, &inode, argv[0])) 1880 return; 1881 1882 if (!LINUX_S_ISDIR(inode.i_mode)) { 1883 com_err(argv[0], 0, "file is not a directory"); 1884 return; 1885 } 1886 1887 rds.parent = 0; 1888 rds.empty = 1; 1889 1890 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0, 1891 0, rmdir_proc, &rds); 1892 if (retval) { 1893 com_err(argv[0], retval, "while iterating over directory"); 1894 return; 1895 } 1896 if (rds.empty == 0) { 1897 com_err(argv[0], 0, "directory not empty"); 1898 return; 1899 } 1900 1901 inode.i_links_count = 0; 1902 if (debugfs_write_inode(inode_num, &inode, argv[0])) 1903 return; 1904 1905 unlink_file_by_name(argv[1]); 1906 kill_file_by_inode(inode_num); 1907 1908 if (rds.parent) { 1909 if (debugfs_read_inode(rds.parent, &inode, argv[0])) 1910 return; 1911 if (inode.i_links_count > 1) 1912 inode.i_links_count--; 1913 if (debugfs_write_inode(rds.parent, &inode, argv[0])) 1914 return; 1915 } 1916} 1917 1918void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)), 1919 char *argv[] EXT2FS_ATTR((unused))) 1920{ 1921 FILE *out = stdout; 1922 1923 if (current_fs) 1924 fprintf(out, "Open mode: read-%s\n", 1925 current_fs->flags & EXT2_FLAG_RW ? "write" : "only"); 1926 fprintf(out, "Filesystem in use: %s\n", 1927 current_fs ? current_fs->device_name : "--none--"); 1928} 1929 1930void do_expand_dir(int argc, char *argv[]) 1931{ 1932 ext2_ino_t inode; 1933 int retval; 1934 1935 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) 1936 return; 1937 1938 retval = ext2fs_expand_dir(current_fs, inode); 1939 if (retval) 1940 com_err("ext2fs_expand_dir", retval, 0); 1941 return; 1942} 1943 1944void do_features(int argc, char *argv[]) 1945{ 1946 int i; 1947 1948 if (check_fs_open(argv[0])) 1949 return; 1950 1951 if ((argc != 1) && check_fs_read_write(argv[0])) 1952 return; 1953 for (i=1; i < argc; i++) { 1954 if (e2p_edit_feature(argv[i], 1955 ¤t_fs->super->s_feature_compat, 0)) 1956 com_err(argv[0], 0, "Unknown feature: %s\n", 1957 argv[i]); 1958 else 1959 ext2fs_mark_super_dirty(current_fs); 1960 } 1961 print_features(current_fs->super, stdout); 1962} 1963 1964void do_bmap(int argc, char *argv[]) 1965{ 1966 ext2_ino_t ino; 1967 blk64_t blk, pblk; 1968 int err; 1969 errcode_t errcode; 1970 1971 if (common_args_process(argc, argv, 3, 3, argv[0], 1972 "<file> logical_blk", 0)) 1973 return; 1974 1975 ino = string_to_inode(argv[1]); 1976 if (!ino) 1977 return; 1978 blk = parse_ulong(argv[2], argv[0], "logical_block", &err); 1979 1980 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk); 1981 if (errcode) { 1982 com_err("argv[0]", errcode, 1983 "while mapping logical block %llu\n", blk); 1984 return; 1985 } 1986 printf("%llu\n", pblk); 1987} 1988 1989void do_imap(int argc, char *argv[]) 1990{ 1991 ext2_ino_t ino; 1992 unsigned long group, block, block_nr, offset; 1993 1994 if (common_args_process(argc, argv, 2, 2, argv[0], 1995 "<file>", 0)) 1996 return; 1997 ino = string_to_inode(argv[1]); 1998 if (!ino) 1999 return; 2000 2001 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super); 2002 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) * 2003 EXT2_INODE_SIZE(current_fs->super); 2004 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super); 2005 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) { 2006 com_err(argv[0], 0, "Inode table for group %lu is missing\n", 2007 group); 2008 return; 2009 } 2010 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) + 2011 block; 2012 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1); 2013 2014 printf("Inode %d is part of block group %lu\n" 2015 "\tlocated at block %lu, offset 0x%04lx\n", ino, group, 2016 block_nr, offset); 2017 2018} 2019 2020void do_set_current_time(int argc, char *argv[]) 2021{ 2022 time_t now; 2023 2024 if (common_args_process(argc, argv, 2, 2, argv[0], 2025 "<time>", 0)) 2026 return; 2027 2028 now = string_to_time(argv[1]); 2029 if (now == ((time_t) -1)) { 2030 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n", 2031 argv[1]); 2032 return; 2033 2034 } else { 2035 printf("Setting current time to %s\n", time_to_string(now)); 2036 current_fs->now = now; 2037 } 2038} 2039 2040static int find_supp_feature(__u32 *supp, int feature_type, char *name) 2041{ 2042 int compat, bit, ret; 2043 unsigned int feature_mask; 2044 2045 if (name) { 2046 if (feature_type == E2P_FS_FEATURE) 2047 ret = e2p_string2feature(name, &compat, &feature_mask); 2048 else 2049 ret = e2p_jrnl_string2feature(name, &compat, 2050 &feature_mask); 2051 if (ret) 2052 return ret; 2053 2054 if (!(supp[compat] & feature_mask)) 2055 return 1; 2056 } else { 2057 for (compat = 0; compat < 3; compat++) { 2058 for (bit = 0, feature_mask = 1; bit < 32; 2059 bit++, feature_mask <<= 1) { 2060 if (supp[compat] & feature_mask) { 2061 if (feature_type == E2P_FS_FEATURE) 2062 fprintf(stdout, " %s", 2063 e2p_feature2string(compat, 2064 feature_mask)); 2065 else 2066 fprintf(stdout, " %s", 2067 e2p_jrnl_feature2string(compat, 2068 feature_mask)); 2069 } 2070 } 2071 } 2072 fprintf(stdout, "\n"); 2073 } 2074 2075 return 0; 2076} 2077 2078void do_supported_features(int argc, char *argv[]) 2079{ 2080 int ret; 2081 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP, 2082 EXT2_LIB_FEATURE_INCOMPAT_SUPP, 2083 EXT2_LIB_FEATURE_RO_COMPAT_SUPP }; 2084 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES, 2085 JFS_KNOWN_INCOMPAT_FEATURES, 2086 JFS_KNOWN_ROCOMPAT_FEATURES }; 2087 2088 if (argc > 1) { 2089 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]); 2090 if (ret) { 2091 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, 2092 argv[1]); 2093 } 2094 if (ret) 2095 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]); 2096 else 2097 fprintf(stdout, "Supported feature: %s\n", argv[1]); 2098 } else { 2099 fprintf(stdout, "Supported features:"); 2100 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL); 2101 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL); 2102 } 2103} 2104 2105void do_punch(int argc, char *argv[]) 2106{ 2107 ext2_ino_t ino; 2108 blk64_t start, end; 2109 int err; 2110 errcode_t errcode; 2111 2112 if (common_args_process(argc, argv, 3, 4, argv[0], 2113 "<file> start_blk [end_blk]", 2114 CHECK_FS_RW | CHECK_FS_BITMAPS)) 2115 return; 2116 2117 ino = string_to_inode(argv[1]); 2118 if (!ino) 2119 return; 2120 start = parse_ulong(argv[2], argv[0], "logical_block", &err); 2121 if (argc == 4) 2122 end = parse_ulong(argv[3], argv[0], "logical_block", &err); 2123 else 2124 end = ~0; 2125 2126 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end); 2127 2128 if (errcode) { 2129 com_err(argv[0], errcode, 2130 "while truncating inode %u from %llu to %llu\n", ino, 2131 (unsigned long long) start, (unsigned long long) end); 2132 return; 2133 } 2134} 2135 2136static int source_file(const char *cmd_file, int sci_idx) 2137{ 2138 FILE *f; 2139 char buf[256]; 2140 char *cp; 2141 int exit_status = 0; 2142 int retval; 2143 2144 if (strcmp(cmd_file, "-") == 0) 2145 f = stdin; 2146 else { 2147 f = fopen(cmd_file, "r"); 2148 if (!f) { 2149 perror(cmd_file); 2150 exit(1); 2151 } 2152 } 2153 fflush(stdout); 2154 fflush(stderr); 2155 setbuf(stdout, NULL); 2156 setbuf(stderr, NULL); 2157 while (!feof(f)) { 2158 if (fgets(buf, sizeof(buf), f) == NULL) 2159 break; 2160 cp = strchr(buf, '\n'); 2161 if (cp) 2162 *cp = 0; 2163 cp = strchr(buf, '\r'); 2164 if (cp) 2165 *cp = 0; 2166 printf("debugfs: %s\n", buf); 2167 retval = ss_execute_line(sci_idx, buf); 2168 if (retval) { 2169 ss_perror(sci_idx, retval, buf); 2170 exit_status++; 2171 } 2172 } 2173 if (f != stdin) 2174 fclose(f); 2175 return exit_status; 2176} 2177 2178int main(int argc, char **argv) 2179{ 2180 int retval; 2181 int sci_idx; 2182 const char *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]"; 2183 int c; 2184 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; 2185 char *request = 0; 2186 int exit_status = 0; 2187 char *cmd_file = 0; 2188 blk64_t superblock = 0; 2189 blk64_t blocksize = 0; 2190 int catastrophic = 0; 2191 char *data_filename = 0; 2192 2193 if (debug_prog_name == 0) 2194 debug_prog_name = "debugfs"; 2195 2196 add_error_table(&et_ext2_error_table); 2197 fprintf (stderr, "%s %s (%s)\n", debug_prog_name, 2198 E2FSPROGS_VERSION, E2FSPROGS_DATE); 2199 2200 while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:D")) != EOF) { 2201 switch (c) { 2202 case 'R': 2203 request = optarg; 2204 break; 2205 case 'f': 2206 cmd_file = optarg; 2207 break; 2208 case 'd': 2209 data_filename = optarg; 2210 break; 2211 case 'i': 2212 open_flags |= EXT2_FLAG_IMAGE_FILE; 2213 break; 2214 case 'w': 2215 open_flags |= EXT2_FLAG_RW; 2216 break; 2217 case 'D': 2218 open_flags |= EXT2_FLAG_DIRECT_IO; 2219 break; 2220 case 'b': 2221 blocksize = parse_ulong(optarg, argv[0], 2222 "block size", 0); 2223 break; 2224 case 's': 2225 superblock = parse_ulong(optarg, argv[0], 2226 "superblock number", 0); 2227 break; 2228 case 'c': 2229 catastrophic = 1; 2230 break; 2231 case 'V': 2232 /* Print version number and exit */ 2233 fprintf(stderr, "\tUsing %s\n", 2234 error_message(EXT2_ET_BASE)); 2235 exit(0); 2236 default: 2237 com_err(argv[0], 0, usage, debug_prog_name); 2238 return 1; 2239 } 2240 } 2241 if (optind < argc) 2242 open_filesystem(argv[optind], open_flags, 2243 superblock, blocksize, catastrophic, 2244 data_filename); 2245 2246 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL, 2247 &debug_cmds, &retval); 2248 if (retval) { 2249 ss_perror(sci_idx, retval, "creating invocation"); 2250 exit(1); 2251 } 2252 ss_get_readline(sci_idx); 2253 2254 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval); 2255 if (retval) { 2256 ss_perror(sci_idx, retval, "adding standard requests"); 2257 exit (1); 2258 } 2259 if (extra_cmds) 2260 ss_add_request_table (sci_idx, extra_cmds, 1, &retval); 2261 if (retval) { 2262 ss_perror(sci_idx, retval, "adding extra requests"); 2263 exit (1); 2264 } 2265 if (request) { 2266 retval = 0; 2267 retval = ss_execute_line(sci_idx, request); 2268 if (retval) { 2269 ss_perror(sci_idx, retval, request); 2270 exit_status++; 2271 } 2272 } else if (cmd_file) { 2273 exit_status = source_file(cmd_file, sci_idx); 2274 } else { 2275 ss_listen(sci_idx); 2276 } 2277 2278 ss_delete_invocation(sci_idx); 2279 2280 if (current_fs) 2281 close_filesystem(); 2282 2283 remove_error_table(&et_ext2_error_table); 2284 return exit_status; 2285} 2286