lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * debugfs.c --- a program which allows you to attach an ext2fs |
| 3 | * filesystem and play with it. |
| 4 | * |
| 5 | * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed |
| 6 | * under the terms of the GNU Public License. |
| 7 | * |
| 8 | * Modifications by Robert Sanders <gt8134b@prism.gatech.edu> |
| 9 | */ |
| 10 | |
| 11 | #include "config.h" |
| 12 | #include <stdio.h> |
| 13 | #include <unistd.h> |
| 14 | #include <stdlib.h> |
| 15 | #include <ctype.h> |
| 16 | #include <string.h> |
| 17 | #include <time.h> |
| 18 | #ifdef HAVE_GETOPT_H |
| 19 | #include <getopt.h> |
| 20 | #else |
| 21 | extern int optind; |
| 22 | extern char *optarg; |
| 23 | #endif |
| 24 | #ifdef HAVE_ERRNO_H |
| 25 | #include <errno.h> |
| 26 | #endif |
| 27 | #include <fcntl.h> |
| 28 | #include <sys/types.h> |
| 29 | #include <sys/stat.h> |
| 30 | |
| 31 | #include "debugfs.h" |
| 32 | #include "uuid/uuid.h" |
| 33 | #include "e2p/e2p.h" |
| 34 | |
| 35 | #include <ext2fs/ext2_ext_attr.h> |
| 36 | |
| 37 | #include "../version.h" |
| 38 | #include "jfs_user.h" |
| 39 | |
| 40 | #ifndef BUFSIZ |
| 41 | #define BUFSIZ 8192 |
| 42 | #endif |
| 43 | |
| 44 | /* 64KiB is the minimium blksize to best minimize system call overhead. */ |
| 45 | #ifndef IO_BUFSIZE |
| 46 | #define IO_BUFSIZE 64*1024 |
| 47 | #endif |
| 48 | |
| 49 | /* Block size for `st_blocks' */ |
| 50 | #ifndef S_BLKSIZE |
| 51 | #define S_BLKSIZE 512 |
| 52 | #endif |
| 53 | |
| 54 | ss_request_table *extra_cmds; |
| 55 | const char *debug_prog_name; |
| 56 | int sci_idx; |
| 57 | |
| 58 | ext2_filsys current_fs = NULL; |
| 59 | ext2_ino_t root, cwd; |
| 60 | |
| 61 | static void open_filesystem(char *device, int open_flags, blk64_t superblock, |
| 62 | blk64_t blocksize, int catastrophic, |
| 63 | char *data_filename) |
| 64 | { |
| 65 | int retval; |
| 66 | io_channel data_io = 0; |
| 67 | |
| 68 | if (superblock != 0 && blocksize == 0) { |
| 69 | com_err(device, 0, "if you specify the superblock, you must also specify the block size"); |
| 70 | current_fs = NULL; |
| 71 | return; |
| 72 | } |
| 73 | |
| 74 | if (data_filename) { |
| 75 | if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) { |
| 76 | com_err(device, 0, |
| 77 | "The -d option is only valid when reading an e2image file"); |
| 78 | current_fs = NULL; |
| 79 | return; |
| 80 | } |
| 81 | retval = unix_io_manager->open(data_filename, 0, &data_io); |
| 82 | if (retval) { |
| 83 | com_err(data_filename, 0, "while opening data source"); |
| 84 | current_fs = NULL; |
| 85 | return; |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | if (catastrophic && (open_flags & EXT2_FLAG_RW)) { |
| 90 | com_err(device, 0, |
| 91 | "opening read-only because of catastrophic mode"); |
| 92 | open_flags &= ~EXT2_FLAG_RW; |
| 93 | } |
| 94 | if (catastrophic) |
| 95 | open_flags |= EXT2_FLAG_SKIP_MMP; |
| 96 | |
| 97 | retval = ext2fs_open(device, open_flags, superblock, blocksize, |
| 98 | unix_io_manager, ¤t_fs); |
| 99 | if (retval) { |
| 100 | com_err(device, retval, "while opening filesystem"); |
| 101 | current_fs = NULL; |
| 102 | return; |
| 103 | } |
| 104 | current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE; |
| 105 | |
| 106 | if (catastrophic) |
| 107 | com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps"); |
| 108 | else { |
| 109 | retval = ext2fs_read_inode_bitmap(current_fs); |
| 110 | if (retval) { |
| 111 | com_err(device, retval, "while reading inode bitmap"); |
| 112 | goto errout; |
| 113 | } |
| 114 | retval = ext2fs_read_block_bitmap(current_fs); |
| 115 | if (retval) { |
| 116 | com_err(device, retval, "while reading block bitmap"); |
| 117 | goto errout; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | if (data_io) { |
| 122 | retval = ext2fs_set_data_io(current_fs, data_io); |
| 123 | if (retval) { |
| 124 | com_err(device, retval, |
| 125 | "while setting data source"); |
| 126 | goto errout; |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | root = cwd = EXT2_ROOT_INO; |
| 131 | return; |
| 132 | |
| 133 | errout: |
| 134 | retval = ext2fs_close(current_fs); |
| 135 | if (retval) |
| 136 | com_err(device, retval, "while trying to close filesystem"); |
| 137 | current_fs = NULL; |
| 138 | } |
| 139 | |
| 140 | void do_open_filesys(int argc, char **argv) |
| 141 | { |
| 142 | int c, err; |
| 143 | int catastrophic = 0; |
| 144 | blk64_t superblock = 0; |
| 145 | blk64_t blocksize = 0; |
| 146 | int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; |
| 147 | char *data_filename = 0; |
| 148 | |
| 149 | reset_getopt(); |
| 150 | while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) { |
| 151 | switch (c) { |
| 152 | case 'i': |
| 153 | open_flags |= EXT2_FLAG_IMAGE_FILE; |
| 154 | break; |
| 155 | case 'w': |
| 156 | #ifdef READ_ONLY |
| 157 | goto print_usage; |
| 158 | #else |
| 159 | open_flags |= EXT2_FLAG_RW; |
| 160 | #endif /* READ_ONLY */ |
| 161 | break; |
| 162 | case 'f': |
| 163 | open_flags |= EXT2_FLAG_FORCE; |
| 164 | break; |
| 165 | case 'e': |
| 166 | open_flags |= EXT2_FLAG_EXCLUSIVE; |
| 167 | break; |
| 168 | case 'c': |
| 169 | catastrophic = 1; |
| 170 | break; |
| 171 | case 'd': |
| 172 | data_filename = optarg; |
| 173 | break; |
| 174 | case 'D': |
| 175 | open_flags |= EXT2_FLAG_DIRECT_IO; |
| 176 | break; |
| 177 | case 'b': |
| 178 | blocksize = parse_ulong(optarg, argv[0], |
| 179 | "block size", &err); |
| 180 | if (err) |
| 181 | return; |
| 182 | break; |
| 183 | case 's': |
| 184 | err = strtoblk(argv[0], optarg, &superblock); |
| 185 | if (err) |
| 186 | return; |
| 187 | break; |
| 188 | default: |
| 189 | goto print_usage; |
| 190 | } |
| 191 | } |
| 192 | if (optind != argc-1) { |
| 193 | goto print_usage; |
| 194 | } |
| 195 | if (check_fs_not_open(argv[0])) |
| 196 | return; |
| 197 | open_filesystem(argv[optind], open_flags, |
| 198 | superblock, blocksize, catastrophic, |
| 199 | data_filename); |
| 200 | return; |
| 201 | |
| 202 | print_usage: |
| 203 | fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] " |
| 204 | "[-d image_filename] [-c] [-i] [-f] [-e] [-D] " |
| 205 | #ifndef READ_ONLY |
| 206 | "[-w] " |
| 207 | #endif |
| 208 | "<device>\n", argv[0]); |
| 209 | } |
| 210 | |
| 211 | void do_lcd(int argc, char **argv) |
| 212 | { |
| 213 | if (argc != 2) { |
| 214 | com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>"); |
| 215 | return; |
| 216 | } |
| 217 | |
| 218 | if (chdir(argv[1]) == -1) { |
| 219 | com_err(argv[0], errno, |
| 220 | "while trying to change native directory to %s", |
| 221 | argv[1]); |
| 222 | return; |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | static void close_filesystem(NOARGS) |
| 227 | { |
| 228 | int retval; |
| 229 | |
| 230 | if (current_fs->flags & EXT2_FLAG_IB_DIRTY) { |
| 231 | retval = ext2fs_write_inode_bitmap(current_fs); |
| 232 | if (retval) |
| 233 | com_err("ext2fs_write_inode_bitmap", retval, 0); |
| 234 | } |
| 235 | if (current_fs->flags & EXT2_FLAG_BB_DIRTY) { |
| 236 | retval = ext2fs_write_block_bitmap(current_fs); |
| 237 | if (retval) |
| 238 | com_err("ext2fs_write_block_bitmap", retval, 0); |
| 239 | } |
| 240 | retval = ext2fs_close(current_fs); |
| 241 | if (retval) |
| 242 | com_err("ext2fs_close", retval, 0); |
| 243 | current_fs = NULL; |
| 244 | return; |
| 245 | } |
| 246 | |
| 247 | void do_close_filesys(int argc, char **argv) |
| 248 | { |
| 249 | int c; |
| 250 | |
| 251 | if (check_fs_open(argv[0])) |
| 252 | return; |
| 253 | |
| 254 | reset_getopt(); |
| 255 | while ((c = getopt (argc, argv, "a")) != EOF) { |
| 256 | switch (c) { |
| 257 | case 'a': |
| 258 | current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY; |
| 259 | break; |
| 260 | default: |
| 261 | goto print_usage; |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | if (argc > optind) { |
| 266 | print_usage: |
| 267 | com_err(0, 0, "Usage: close_filesys [-a]"); |
| 268 | return; |
| 269 | } |
| 270 | |
| 271 | close_filesystem(); |
| 272 | } |
| 273 | |
| 274 | #ifndef READ_ONLY |
| 275 | void do_init_filesys(int argc, char **argv) |
| 276 | { |
| 277 | struct ext2_super_block param; |
| 278 | errcode_t retval; |
| 279 | int err; |
| 280 | blk64_t blocks; |
| 281 | |
| 282 | if (common_args_process(argc, argv, 3, 3, "initialize", |
| 283 | "<device> <blocks>", CHECK_FS_NOTOPEN)) |
| 284 | return; |
| 285 | |
| 286 | memset(¶m, 0, sizeof(struct ext2_super_block)); |
| 287 | err = strtoblk(argv[0], argv[2], &blocks); |
| 288 | if (err) |
| 289 | return; |
| 290 | ext2fs_blocks_count_set(¶m, blocks); |
| 291 | if (err) |
| 292 | return; |
| 293 | retval = ext2fs_initialize(argv[1], 0, ¶m, |
| 294 | unix_io_manager, ¤t_fs); |
| 295 | if (retval) { |
| 296 | com_err(argv[1], retval, "while initializing filesystem"); |
| 297 | current_fs = NULL; |
| 298 | return; |
| 299 | } |
| 300 | root = cwd = EXT2_ROOT_INO; |
| 301 | return; |
| 302 | } |
| 303 | |
| 304 | static void print_features(struct ext2_super_block * s, FILE *f) |
| 305 | { |
| 306 | int i, j, printed=0; |
| 307 | __u32 *mask = &s->s_feature_compat, m; |
| 308 | |
| 309 | fputs("Filesystem features:", f); |
| 310 | for (i=0; i <3; i++,mask++) { |
| 311 | for (j=0,m=1; j < 32; j++, m<<=1) { |
| 312 | if (*mask & m) { |
| 313 | fprintf(f, " %s", e2p_feature2string(i, m)); |
| 314 | printed++; |
| 315 | } |
| 316 | } |
| 317 | } |
| 318 | if (printed == 0) |
| 319 | fputs("(none)", f); |
| 320 | fputs("\n", f); |
| 321 | } |
| 322 | #endif /* READ_ONLY */ |
| 323 | |
| 324 | static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask, |
| 325 | const char *str, int *first, FILE *f) |
| 326 | { |
| 327 | if (ext2fs_bg_flags_test(fs, group, mask)) { |
| 328 | if (*first) { |
| 329 | fputs(" [", f); |
| 330 | *first = 0; |
| 331 | } else |
| 332 | fputs(", ", f); |
| 333 | fputs(str, f); |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | void do_show_super_stats(int argc, char *argv[]) |
| 338 | { |
| 339 | const char *units ="block"; |
| 340 | dgrp_t i; |
| 341 | FILE *out; |
| 342 | int c, header_only = 0; |
| 343 | int numdirs = 0, first, gdt_csum; |
| 344 | |
| 345 | reset_getopt(); |
| 346 | while ((c = getopt (argc, argv, "h")) != EOF) { |
| 347 | switch (c) { |
| 348 | case 'h': |
| 349 | header_only++; |
| 350 | break; |
| 351 | default: |
| 352 | goto print_usage; |
| 353 | } |
| 354 | } |
| 355 | if (optind != argc) { |
| 356 | goto print_usage; |
| 357 | } |
| 358 | if (check_fs_open(argv[0])) |
| 359 | return; |
| 360 | out = open_pager(); |
| 361 | |
| 362 | if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, |
| 363 | EXT4_FEATURE_RO_COMPAT_BIGALLOC)) |
| 364 | units = "cluster"; |
| 365 | |
| 366 | list_super2(current_fs->super, out); |
| 367 | for (i=0; i < current_fs->group_desc_count; i++) |
| 368 | numdirs += ext2fs_bg_used_dirs_count(current_fs, i); |
| 369 | fprintf(out, "Directories: %d\n", numdirs); |
| 370 | |
| 371 | if (header_only) { |
| 372 | close_pager(out); |
| 373 | return; |
| 374 | } |
| 375 | |
| 376 | gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super, |
| 377 | EXT4_FEATURE_RO_COMPAT_GDT_CSUM); |
| 378 | for (i = 0; i < current_fs->group_desc_count; i++) { |
| 379 | fprintf(out, " Group %2d: block bitmap at %llu, " |
| 380 | "inode bitmap at %llu, " |
| 381 | "inode table at %llu\n" |
| 382 | " %u free %s%s, " |
| 383 | "%u free %s, " |
| 384 | "%u used %s%s", |
| 385 | i, ext2fs_block_bitmap_loc(current_fs, i), |
| 386 | ext2fs_inode_bitmap_loc(current_fs, i), |
| 387 | ext2fs_inode_table_loc(current_fs, i), |
| 388 | ext2fs_bg_free_blocks_count(current_fs, i), units, |
| 389 | ext2fs_bg_free_blocks_count(current_fs, i) != 1 ? |
| 390 | "s" : "", |
| 391 | ext2fs_bg_free_inodes_count(current_fs, i), |
| 392 | ext2fs_bg_free_inodes_count(current_fs, i) != 1 ? |
| 393 | "inodes" : "inode", |
| 394 | ext2fs_bg_used_dirs_count(current_fs, i), |
| 395 | ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories" |
| 396 | : "directory", gdt_csum ? ", " : "\n"); |
| 397 | if (gdt_csum) |
| 398 | fprintf(out, "%u unused %s\n", |
| 399 | ext2fs_bg_itable_unused(current_fs, i), |
| 400 | ext2fs_bg_itable_unused(current_fs, i) != 1 ? |
| 401 | "inodes" : "inode"); |
| 402 | first = 1; |
| 403 | print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init", |
| 404 | &first, out); |
| 405 | print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init", |
| 406 | &first, out); |
| 407 | if (gdt_csum) { |
| 408 | fprintf(out, "%sChecksum 0x%04x", |
| 409 | first ? " [":", ", ext2fs_bg_checksum(current_fs, i)); |
| 410 | first = 0; |
| 411 | } |
| 412 | if (!first) |
| 413 | fputs("]\n", out); |
| 414 | } |
| 415 | close_pager(out); |
| 416 | return; |
| 417 | print_usage: |
| 418 | fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]); |
| 419 | } |
| 420 | |
| 421 | #ifndef READ_ONLY |
| 422 | void do_dirty_filesys(int argc EXT2FS_ATTR((unused)), |
| 423 | char **argv EXT2FS_ATTR((unused))) |
| 424 | { |
| 425 | if (check_fs_open(argv[0])) |
| 426 | return; |
| 427 | if (check_fs_read_write(argv[0])) |
| 428 | return; |
| 429 | |
| 430 | if (argv[1] && !strcmp(argv[1], "-clean")) |
| 431 | current_fs->super->s_state |= EXT2_VALID_FS; |
| 432 | else |
| 433 | current_fs->super->s_state &= ~EXT2_VALID_FS; |
| 434 | ext2fs_mark_super_dirty(current_fs); |
| 435 | } |
| 436 | #endif /* READ_ONLY */ |
| 437 | |
| 438 | struct list_blocks_struct { |
| 439 | FILE *f; |
| 440 | e2_blkcnt_t total; |
| 441 | blk64_t first_block, last_block; |
| 442 | e2_blkcnt_t first_bcnt, last_bcnt; |
| 443 | e2_blkcnt_t first; |
| 444 | }; |
| 445 | |
| 446 | static void finish_range(struct list_blocks_struct *lb) |
| 447 | { |
| 448 | if (lb->first_block == 0) |
| 449 | return; |
| 450 | if (lb->first) |
| 451 | lb->first = 0; |
| 452 | else |
| 453 | fprintf(lb->f, ", "); |
| 454 | if (lb->first_block == lb->last_block) |
| 455 | fprintf(lb->f, "(%lld):%llu", |
| 456 | (long long)lb->first_bcnt, lb->first_block); |
| 457 | else |
| 458 | fprintf(lb->f, "(%lld-%lld):%llu-%llu", |
| 459 | (long long)lb->first_bcnt, (long long)lb->last_bcnt, |
| 460 | lb->first_block, lb->last_block); |
| 461 | lb->first_block = 0; |
| 462 | } |
| 463 | |
| 464 | static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), |
| 465 | blk64_t *blocknr, e2_blkcnt_t blockcnt, |
| 466 | blk64_t ref_block EXT2FS_ATTR((unused)), |
| 467 | int ref_offset EXT2FS_ATTR((unused)), |
| 468 | void *private) |
| 469 | { |
| 470 | struct list_blocks_struct *lb = (struct list_blocks_struct *) private; |
| 471 | |
| 472 | lb->total++; |
| 473 | if (blockcnt >= 0) { |
| 474 | /* |
| 475 | * See if we can add on to the existing range (if it exists) |
| 476 | */ |
| 477 | if (lb->first_block && |
| 478 | (lb->last_block+1 == *blocknr) && |
| 479 | (lb->last_bcnt+1 == blockcnt)) { |
| 480 | lb->last_block = *blocknr; |
| 481 | lb->last_bcnt = blockcnt; |
| 482 | return 0; |
| 483 | } |
| 484 | /* |
| 485 | * Start a new range. |
| 486 | */ |
| 487 | finish_range(lb); |
| 488 | lb->first_block = lb->last_block = *blocknr; |
| 489 | lb->first_bcnt = lb->last_bcnt = blockcnt; |
| 490 | return 0; |
| 491 | } |
| 492 | /* |
| 493 | * Not a normal block. Always force a new range. |
| 494 | */ |
| 495 | finish_range(lb); |
| 496 | if (lb->first) |
| 497 | lb->first = 0; |
| 498 | else |
| 499 | fprintf(lb->f, ", "); |
| 500 | if (blockcnt == -1) |
| 501 | fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr); |
| 502 | else if (blockcnt == -2) |
| 503 | fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr); |
| 504 | else if (blockcnt == -3) |
| 505 | fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr); |
| 506 | return 0; |
| 507 | } |
| 508 | |
| 509 | static void dump_xattr_string(FILE *out, const char *str, int len) |
| 510 | { |
| 511 | int printable = 0; |
| 512 | int i; |
| 513 | |
| 514 | /* check: is string "printable enough?" */ |
| 515 | for (i = 0; i < len; i++) |
| 516 | if (isprint(str[i])) |
| 517 | printable++; |
| 518 | |
| 519 | if (printable <= len*7/8) |
| 520 | printable = 0; |
| 521 | |
| 522 | for (i = 0; i < len; i++) |
| 523 | if (printable) |
| 524 | fprintf(out, isprint(str[i]) ? "%c" : "\\%03o", |
| 525 | (unsigned char)str[i]); |
| 526 | else |
| 527 | fprintf(out, "%02x ", (unsigned char)str[i]); |
| 528 | } |
| 529 | |
| 530 | static void internal_dump_inode_extra(FILE *out, |
| 531 | const char *prefix EXT2FS_ATTR((unused)), |
| 532 | ext2_ino_t inode_num EXT2FS_ATTR((unused)), |
| 533 | struct ext2_inode_large *inode) |
| 534 | { |
| 535 | struct ext2_ext_attr_entry *entry; |
| 536 | __u32 *magic; |
| 537 | char *start, *end; |
| 538 | unsigned int storage_size; |
| 539 | |
| 540 | fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize); |
| 541 | if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) - |
| 542 | EXT2_GOOD_OLD_INODE_SIZE) { |
| 543 | fprintf(stderr, "invalid inode->i_extra_isize (%u)\n", |
| 544 | inode->i_extra_isize); |
| 545 | return; |
| 546 | } |
| 547 | storage_size = EXT2_INODE_SIZE(current_fs->super) - |
| 548 | EXT2_GOOD_OLD_INODE_SIZE - |
| 549 | inode->i_extra_isize; |
| 550 | magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE + |
| 551 | inode->i_extra_isize); |
| 552 | if (*magic == EXT2_EXT_ATTR_MAGIC) { |
| 553 | fprintf(out, "Extended attributes stored in inode body: \n"); |
| 554 | end = (char *) inode + EXT2_INODE_SIZE(current_fs->super); |
| 555 | start = (char *) magic + sizeof(__u32); |
| 556 | entry = (struct ext2_ext_attr_entry *) start; |
| 557 | while (!EXT2_EXT_IS_LAST_ENTRY(entry)) { |
| 558 | struct ext2_ext_attr_entry *next = |
| 559 | EXT2_EXT_ATTR_NEXT(entry); |
| 560 | if (entry->e_value_size > storage_size || |
| 561 | (char *) next >= end) { |
| 562 | fprintf(out, "invalid EA entry in inode\n"); |
| 563 | return; |
| 564 | } |
| 565 | fprintf(out, " "); |
| 566 | dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry), |
| 567 | entry->e_name_len); |
| 568 | fprintf(out, " = \""); |
| 569 | dump_xattr_string(out, start + entry->e_value_offs, |
| 570 | entry->e_value_size); |
| 571 | fprintf(out, "\" (%u)\n", entry->e_value_size); |
| 572 | entry = next; |
| 573 | } |
| 574 | } |
| 575 | } |
| 576 | |
| 577 | static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode) |
| 578 | { |
| 579 | struct list_blocks_struct lb; |
| 580 | |
| 581 | fprintf(f, "%sBLOCKS:\n%s", prefix, prefix); |
| 582 | lb.total = 0; |
| 583 | lb.first_block = 0; |
| 584 | lb.f = f; |
| 585 | lb.first = 1; |
| 586 | ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, |
| 587 | list_blocks_proc, (void *)&lb); |
| 588 | finish_range(&lb); |
| 589 | if (lb.total) |
| 590 | fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total); |
| 591 | fprintf(f,"\n"); |
| 592 | } |
| 593 | |
| 594 | static int int_log10(unsigned long long arg) |
| 595 | { |
| 596 | int l = 0; |
| 597 | |
| 598 | arg = arg / 10; |
| 599 | while (arg) { |
| 600 | l++; |
| 601 | arg = arg / 10; |
| 602 | } |
| 603 | return l; |
| 604 | } |
| 605 | |
| 606 | #define DUMP_LEAF_EXTENTS 0x01 |
| 607 | #define DUMP_NODE_EXTENTS 0x02 |
| 608 | #define DUMP_EXTENT_TABLE 0x04 |
| 609 | |
| 610 | static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino, |
| 611 | int flags, int logical_width, int physical_width) |
| 612 | { |
| 613 | ext2_extent_handle_t handle; |
| 614 | struct ext2fs_extent extent; |
| 615 | struct ext2_extent_info info; |
| 616 | int op = EXT2_EXTENT_ROOT; |
| 617 | unsigned int printed = 0; |
| 618 | errcode_t errcode; |
| 619 | |
| 620 | errcode = ext2fs_extent_open(current_fs, ino, &handle); |
| 621 | if (errcode) |
| 622 | return; |
| 623 | |
| 624 | if (flags & DUMP_EXTENT_TABLE) |
| 625 | fprintf(f, "Level Entries %*s %*s Length Flags\n", |
| 626 | (logical_width*2)+3, "Logical", |
| 627 | (physical_width*2)+3, "Physical"); |
| 628 | else |
| 629 | fprintf(f, "%sEXTENTS:\n%s", prefix, prefix); |
| 630 | |
| 631 | while (1) { |
| 632 | errcode = ext2fs_extent_get(handle, op, &extent); |
| 633 | |
| 634 | if (errcode) |
| 635 | break; |
| 636 | |
| 637 | op = EXT2_EXTENT_NEXT; |
| 638 | |
| 639 | if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) |
| 640 | continue; |
| 641 | |
| 642 | if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) { |
| 643 | if ((flags & DUMP_LEAF_EXTENTS) == 0) |
| 644 | continue; |
| 645 | } else { |
| 646 | if ((flags & DUMP_NODE_EXTENTS) == 0) |
| 647 | continue; |
| 648 | } |
| 649 | |
| 650 | errcode = ext2fs_extent_get_info(handle, &info); |
| 651 | if (errcode) |
| 652 | continue; |
| 653 | |
| 654 | if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) { |
| 655 | if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT) |
| 656 | continue; |
| 657 | |
| 658 | if (flags & DUMP_EXTENT_TABLE) { |
| 659 | fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " |
| 660 | "%*llu%*s %6u\n", |
| 661 | info.curr_level, info.max_depth, |
| 662 | info.curr_entry, info.num_entries, |
| 663 | logical_width, |
| 664 | extent.e_lblk, |
| 665 | logical_width, |
| 666 | extent.e_lblk + (extent.e_len - 1), |
| 667 | physical_width, |
| 668 | extent.e_pblk, |
| 669 | physical_width+3, "", extent.e_len); |
| 670 | continue; |
| 671 | } |
| 672 | |
| 673 | fprintf(f, "%s(ETB%d):%lld", |
| 674 | printed ? ", " : "", info.curr_level, |
| 675 | extent.e_pblk); |
| 676 | printed = 1; |
| 677 | continue; |
| 678 | } |
| 679 | |
| 680 | if (flags & DUMP_EXTENT_TABLE) { |
| 681 | fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu " |
| 682 | "%*llu - %*llu %6u %s\n", |
| 683 | info.curr_level, info.max_depth, |
| 684 | info.curr_entry, info.num_entries, |
| 685 | logical_width, |
| 686 | extent.e_lblk, |
| 687 | logical_width, |
| 688 | extent.e_lblk + (extent.e_len - 1), |
| 689 | physical_width, |
| 690 | extent.e_pblk, |
| 691 | physical_width, |
| 692 | extent.e_pblk + (extent.e_len - 1), |
| 693 | extent.e_len, |
| 694 | extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? |
| 695 | "Uninit" : ""); |
| 696 | continue; |
| 697 | } |
| 698 | |
| 699 | if (extent.e_len == 0) |
| 700 | continue; |
| 701 | else if (extent.e_len == 1) |
| 702 | fprintf(f, |
| 703 | "%s(%lld%s):%lld", |
| 704 | printed ? ", " : "", |
| 705 | extent.e_lblk, |
| 706 | extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? |
| 707 | "[u]" : "", |
| 708 | extent.e_pblk); |
| 709 | else |
| 710 | fprintf(f, |
| 711 | "%s(%lld-%lld%s):%lld-%lld", |
| 712 | printed ? ", " : "", |
| 713 | extent.e_lblk, |
| 714 | extent.e_lblk + (extent.e_len - 1), |
| 715 | extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ? |
| 716 | "[u]" : "", |
| 717 | extent.e_pblk, |
| 718 | extent.e_pblk + (extent.e_len - 1)); |
| 719 | printed = 1; |
| 720 | } |
| 721 | if (printed) |
| 722 | fprintf(f, "\n"); |
| 723 | } |
| 724 | |
| 725 | void internal_dump_inode(FILE *out, const char *prefix, |
| 726 | ext2_ino_t inode_num, struct ext2_inode *inode, |
| 727 | int do_dump_blocks) |
| 728 | { |
| 729 | const char *i_type; |
| 730 | char frag, fsize; |
| 731 | int os = current_fs->super->s_creator_os; |
| 732 | struct ext2_inode_large *large_inode; |
| 733 | int is_large_inode = 0; |
| 734 | |
| 735 | if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) |
| 736 | is_large_inode = 1; |
| 737 | large_inode = (struct ext2_inode_large *) inode; |
| 738 | |
| 739 | if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory"; |
| 740 | else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular"; |
| 741 | else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink"; |
| 742 | else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special"; |
| 743 | else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special"; |
| 744 | else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO"; |
| 745 | else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket"; |
| 746 | else i_type = "bad type"; |
| 747 | fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type); |
| 748 | fprintf(out, "%sMode: %04o Flags: 0x%x\n", |
| 749 | prefix, inode->i_mode & 0777, inode->i_flags); |
| 750 | if (is_large_inode && large_inode->i_extra_isize >= 24) { |
| 751 | fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n", |
| 752 | prefix, inode->i_generation, large_inode->i_version_hi, |
| 753 | inode->osd1.linux1.l_i_version); |
| 754 | } else { |
| 755 | fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix, |
| 756 | inode->i_generation, inode->osd1.linux1.l_i_version); |
| 757 | } |
| 758 | fprintf(out, "%sUser: %5d Group: %5d Size: ", |
| 759 | prefix, inode_uid(*inode), inode_gid(*inode)); |
| 760 | if (LINUX_S_ISREG(inode->i_mode)) |
| 761 | fprintf(out, "%llu\n", EXT2_I_SIZE(inode)); |
| 762 | else |
| 763 | fprintf(out, "%d\n", inode->i_size); |
| 764 | if (os == EXT2_OS_HURD) |
| 765 | fprintf(out, |
| 766 | "%sFile ACL: %d Directory ACL: %d Translator: %d\n", |
| 767 | prefix, |
| 768 | inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0, |
| 769 | inode->osd1.hurd1.h_i_translator); |
| 770 | else |
| 771 | fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n", |
| 772 | prefix, |
| 773 | inode->i_file_acl | ((long long) |
| 774 | (inode->osd2.linux2.l_i_file_acl_high) << 32), |
| 775 | LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0); |
| 776 | if (os == EXT2_OS_LINUX) |
| 777 | fprintf(out, "%sLinks: %d Blockcount: %llu\n", |
| 778 | prefix, inode->i_links_count, |
| 779 | (((unsigned long long) |
| 780 | inode->osd2.linux2.l_i_blocks_hi << 32)) + |
| 781 | inode->i_blocks); |
| 782 | else |
| 783 | fprintf(out, "%sLinks: %d Blockcount: %u\n", |
| 784 | prefix, inode->i_links_count, inode->i_blocks); |
| 785 | switch (os) { |
| 786 | case EXT2_OS_HURD: |
| 787 | frag = inode->osd2.hurd2.h_i_frag; |
| 788 | fsize = inode->osd2.hurd2.h_i_fsize; |
| 789 | break; |
| 790 | default: |
| 791 | frag = fsize = 0; |
| 792 | } |
| 793 | fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n", |
| 794 | prefix, inode->i_faddr, frag, fsize); |
| 795 | if (is_large_inode && large_inode->i_extra_isize >= 24) { |
| 796 | fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix, |
| 797 | inode->i_ctime, large_inode->i_ctime_extra, |
| 798 | time_to_string(inode->i_ctime)); |
| 799 | fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix, |
| 800 | inode->i_atime, large_inode->i_atime_extra, |
| 801 | time_to_string(inode->i_atime)); |
| 802 | fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix, |
| 803 | inode->i_mtime, large_inode->i_mtime_extra, |
| 804 | time_to_string(inode->i_mtime)); |
| 805 | fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix, |
| 806 | large_inode->i_crtime, large_inode->i_crtime_extra, |
| 807 | time_to_string(large_inode->i_crtime)); |
| 808 | } else { |
| 809 | fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime, |
| 810 | time_to_string(inode->i_ctime)); |
| 811 | fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime, |
| 812 | time_to_string(inode->i_atime)); |
| 813 | fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime, |
| 814 | time_to_string(inode->i_mtime)); |
| 815 | } |
| 816 | if (inode->i_dtime) |
| 817 | fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime, |
| 818 | time_to_string(inode->i_dtime)); |
| 819 | if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE) |
| 820 | internal_dump_inode_extra(out, prefix, inode_num, |
| 821 | (struct ext2_inode_large *) inode); |
| 822 | if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0) |
| 823 | fprintf(out, "%sFast_link_dest: %.*s\n", prefix, |
| 824 | (int) inode->i_size, (char *)inode->i_block); |
| 825 | else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) { |
| 826 | int major, minor; |
| 827 | const char *devnote; |
| 828 | |
| 829 | if (inode->i_block[0]) { |
| 830 | major = (inode->i_block[0] >> 8) & 255; |
| 831 | minor = inode->i_block[0] & 255; |
| 832 | devnote = ""; |
| 833 | } else { |
| 834 | major = (inode->i_block[1] & 0xfff00) >> 8; |
| 835 | minor = ((inode->i_block[1] & 0xff) | |
| 836 | ((inode->i_block[1] >> 12) & 0xfff00)); |
| 837 | devnote = "(New-style) "; |
| 838 | } |
| 839 | fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n", |
| 840 | devnote, major, minor, major, minor); |
| 841 | } else if (do_dump_blocks) { |
| 842 | if (inode->i_flags & EXT4_EXTENTS_FL) |
| 843 | dump_extents(out, prefix, inode_num, |
| 844 | DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0); |
| 845 | else |
| 846 | dump_blocks(out, prefix, inode_num); |
| 847 | } |
| 848 | } |
| 849 | |
| 850 | static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode) |
| 851 | { |
| 852 | FILE *out; |
| 853 | |
| 854 | out = open_pager(); |
| 855 | internal_dump_inode(out, "", inode_num, inode, 1); |
| 856 | close_pager(out); |
| 857 | } |
| 858 | |
| 859 | void do_stat(int argc, char *argv[]) |
| 860 | { |
| 861 | ext2_ino_t inode; |
| 862 | struct ext2_inode * inode_buf; |
| 863 | |
| 864 | if (check_fs_open(argv[0])) |
| 865 | return; |
| 866 | |
| 867 | inode_buf = (struct ext2_inode *) |
| 868 | malloc(EXT2_INODE_SIZE(current_fs->super)); |
| 869 | if (!inode_buf) { |
| 870 | fprintf(stderr, "do_stat: can't allocate buffer\n"); |
| 871 | return; |
| 872 | } |
| 873 | |
| 874 | if (common_inode_args_process(argc, argv, &inode, 0)) { |
| 875 | free(inode_buf); |
| 876 | return; |
| 877 | } |
| 878 | |
| 879 | if (debugfs_read_inode_full(inode, inode_buf, argv[0], |
| 880 | EXT2_INODE_SIZE(current_fs->super))) { |
| 881 | free(inode_buf); |
| 882 | return; |
| 883 | } |
| 884 | |
| 885 | dump_inode(inode, inode_buf); |
| 886 | free(inode_buf); |
| 887 | return; |
| 888 | } |
| 889 | |
| 890 | void do_dump_extents(int argc, char **argv) |
| 891 | { |
| 892 | struct ext2_inode inode; |
| 893 | ext2_ino_t ino; |
| 894 | FILE *out; |
| 895 | int c, flags = 0; |
| 896 | int logical_width; |
| 897 | int physical_width; |
| 898 | |
| 899 | reset_getopt(); |
| 900 | while ((c = getopt(argc, argv, "nl")) != EOF) { |
| 901 | switch (c) { |
| 902 | case 'n': |
| 903 | flags |= DUMP_NODE_EXTENTS; |
| 904 | break; |
| 905 | case 'l': |
| 906 | flags |= DUMP_LEAF_EXTENTS; |
| 907 | break; |
| 908 | } |
| 909 | } |
| 910 | |
| 911 | if (argc != optind + 1) { |
| 912 | com_err(0, 0, "Usage: dump_extents [-n] [-l] file"); |
| 913 | return; |
| 914 | } |
| 915 | |
| 916 | if (flags == 0) |
| 917 | flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS; |
| 918 | flags |= DUMP_EXTENT_TABLE; |
| 919 | |
| 920 | if (check_fs_open(argv[0])) |
| 921 | return; |
| 922 | |
| 923 | ino = string_to_inode(argv[optind]); |
| 924 | if (ino == 0) |
| 925 | return; |
| 926 | |
| 927 | if (debugfs_read_inode(ino, &inode, argv[0])) |
| 928 | return; |
| 929 | |
| 930 | if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) { |
| 931 | fprintf(stderr, "%s: does not uses extent block maps\n", |
| 932 | argv[optind]); |
| 933 | return; |
| 934 | } |
| 935 | |
| 936 | logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/ |
| 937 | current_fs->blocksize) + 1; |
| 938 | if (logical_width < 5) |
| 939 | logical_width = 5; |
| 940 | physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1; |
| 941 | if (physical_width < 5) |
| 942 | physical_width = 5; |
| 943 | |
| 944 | out = open_pager(); |
| 945 | dump_extents(out, "", ino, flags, logical_width, physical_width); |
| 946 | close_pager(out); |
| 947 | return; |
| 948 | } |
| 949 | |
| 950 | static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)), |
| 951 | blk64_t *blocknr, |
| 952 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
| 953 | blk64_t ref_block EXT2FS_ATTR((unused)), |
| 954 | int ref_offset EXT2FS_ATTR((unused)), |
| 955 | void *private EXT2FS_ATTR((unused))) |
| 956 | { |
| 957 | printf("%llu ", *blocknr); |
| 958 | return 0; |
| 959 | } |
| 960 | |
| 961 | void do_blocks(int argc, char *argv[]) |
| 962 | { |
| 963 | ext2_ino_t inode; |
| 964 | |
| 965 | if (check_fs_open(argv[0])) |
| 966 | return; |
| 967 | |
| 968 | if (common_inode_args_process(argc, argv, &inode, 0)) { |
| 969 | return; |
| 970 | } |
| 971 | |
| 972 | ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, |
| 973 | print_blocks_proc, NULL); |
| 974 | fputc('\n', stdout); |
| 975 | return; |
| 976 | } |
| 977 | |
| 978 | void do_chroot(int argc, char *argv[]) |
| 979 | { |
| 980 | ext2_ino_t inode; |
| 981 | int retval; |
| 982 | |
| 983 | if (common_inode_args_process(argc, argv, &inode, 0)) |
| 984 | return; |
| 985 | |
| 986 | retval = ext2fs_check_directory(current_fs, inode); |
| 987 | if (retval) { |
| 988 | com_err(argv[1], retval, 0); |
| 989 | return; |
| 990 | } |
| 991 | root = inode; |
| 992 | } |
| 993 | |
| 994 | #ifndef READ_ONLY |
| 995 | void do_clri(int argc, char *argv[]) |
| 996 | { |
| 997 | ext2_ino_t inode; |
| 998 | struct ext2_inode inode_buf; |
| 999 | |
| 1000 | if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) |
| 1001 | return; |
| 1002 | |
| 1003 | if (debugfs_read_inode(inode, &inode_buf, argv[0])) |
| 1004 | return; |
| 1005 | memset(&inode_buf, 0, sizeof(inode_buf)); |
| 1006 | if (debugfs_write_inode(inode, &inode_buf, argv[0])) |
| 1007 | return; |
| 1008 | } |
| 1009 | |
| 1010 | void do_freei(int argc, char *argv[]) |
| 1011 | { |
| 1012 | unsigned int len = 1; |
| 1013 | int err = 0; |
| 1014 | ext2_ino_t inode; |
| 1015 | |
| 1016 | if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]", |
| 1017 | CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 1018 | return; |
| 1019 | if (check_fs_read_write(argv[0])) |
| 1020 | return; |
| 1021 | |
| 1022 | inode = string_to_inode(argv[1]); |
| 1023 | if (!inode) |
| 1024 | return; |
| 1025 | |
| 1026 | if (argc == 3) { |
| 1027 | len = parse_ulong(argv[2], argv[0], "length", &err); |
| 1028 | if (err) |
| 1029 | return; |
| 1030 | } |
| 1031 | |
| 1032 | if (len == 1 && |
| 1033 | !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) |
| 1034 | com_err(argv[0], 0, "Warning: inode already clear"); |
| 1035 | while (len-- > 0) |
| 1036 | ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++); |
| 1037 | ext2fs_mark_ib_dirty(current_fs); |
| 1038 | } |
| 1039 | |
| 1040 | void do_seti(int argc, char *argv[]) |
| 1041 | { |
| 1042 | unsigned int len = 1; |
| 1043 | int err = 0; |
| 1044 | ext2_ino_t inode; |
| 1045 | |
| 1046 | if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]", |
| 1047 | CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 1048 | return; |
| 1049 | if (check_fs_read_write(argv[0])) |
| 1050 | return; |
| 1051 | |
| 1052 | inode = string_to_inode(argv[1]); |
| 1053 | if (!inode) |
| 1054 | return; |
| 1055 | |
| 1056 | if (argc == 3) { |
| 1057 | len = parse_ulong(argv[2], argv[0], "length", &err); |
| 1058 | if (err) |
| 1059 | return; |
| 1060 | } |
| 1061 | |
| 1062 | if ((len == 1) && |
| 1063 | ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) |
| 1064 | com_err(argv[0], 0, "Warning: inode already set"); |
| 1065 | while (len-- > 0) |
| 1066 | ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++); |
| 1067 | ext2fs_mark_ib_dirty(current_fs); |
| 1068 | } |
| 1069 | #endif /* READ_ONLY */ |
| 1070 | |
| 1071 | void do_testi(int argc, char *argv[]) |
| 1072 | { |
| 1073 | ext2_ino_t inode; |
| 1074 | |
| 1075 | if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS)) |
| 1076 | return; |
| 1077 | |
| 1078 | if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode)) |
| 1079 | printf("Inode %u is marked in use\n", inode); |
| 1080 | else |
| 1081 | printf("Inode %u is not in use\n", inode); |
| 1082 | } |
| 1083 | |
| 1084 | #ifndef READ_ONLY |
| 1085 | void do_freeb(int argc, char *argv[]) |
| 1086 | { |
| 1087 | blk64_t block; |
| 1088 | blk64_t count = 1; |
| 1089 | |
| 1090 | if (common_block_args_process(argc, argv, &block, &count)) |
| 1091 | return; |
| 1092 | if (check_fs_read_write(argv[0])) |
| 1093 | return; |
| 1094 | while (count-- > 0) { |
| 1095 | if (!ext2fs_test_block_bitmap2(current_fs->block_map,block)) |
| 1096 | com_err(argv[0], 0, "Warning: block %llu already clear", |
| 1097 | block); |
| 1098 | ext2fs_unmark_block_bitmap2(current_fs->block_map,block); |
| 1099 | block++; |
| 1100 | } |
| 1101 | ext2fs_mark_bb_dirty(current_fs); |
| 1102 | } |
| 1103 | |
| 1104 | void do_setb(int argc, char *argv[]) |
| 1105 | { |
| 1106 | blk64_t block; |
| 1107 | blk64_t count = 1; |
| 1108 | |
| 1109 | if (common_block_args_process(argc, argv, &block, &count)) |
| 1110 | return; |
| 1111 | if (check_fs_read_write(argv[0])) |
| 1112 | return; |
| 1113 | while (count-- > 0) { |
| 1114 | if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) |
| 1115 | com_err(argv[0], 0, "Warning: block %llu already set", |
| 1116 | block); |
| 1117 | ext2fs_mark_block_bitmap2(current_fs->block_map,block); |
| 1118 | block++; |
| 1119 | } |
| 1120 | ext2fs_mark_bb_dirty(current_fs); |
| 1121 | } |
| 1122 | #endif /* READ_ONLY */ |
| 1123 | |
| 1124 | void do_testb(int argc, char *argv[]) |
| 1125 | { |
| 1126 | blk64_t block; |
| 1127 | blk64_t count = 1; |
| 1128 | |
| 1129 | if (common_block_args_process(argc, argv, &block, &count)) |
| 1130 | return; |
| 1131 | while (count-- > 0) { |
| 1132 | if (ext2fs_test_block_bitmap2(current_fs->block_map,block)) |
| 1133 | printf("Block %llu marked in use\n", block); |
| 1134 | else |
| 1135 | printf("Block %llu not in use\n", block); |
| 1136 | block++; |
| 1137 | } |
| 1138 | } |
| 1139 | |
| 1140 | #ifndef READ_ONLY |
| 1141 | static void modify_u8(char *com, const char *prompt, |
| 1142 | const char *format, __u8 *val) |
| 1143 | { |
| 1144 | char buf[200]; |
| 1145 | unsigned long v; |
| 1146 | char *tmp; |
| 1147 | |
| 1148 | sprintf(buf, format, *val); |
| 1149 | printf("%30s [%s] ", prompt, buf); |
| 1150 | if (!fgets(buf, sizeof(buf), stdin)) |
| 1151 | return; |
| 1152 | if (buf[strlen (buf) - 1] == '\n') |
| 1153 | buf[strlen (buf) - 1] = '\0'; |
| 1154 | if (!buf[0]) |
| 1155 | return; |
| 1156 | v = strtoul(buf, &tmp, 0); |
| 1157 | if (*tmp) |
| 1158 | com_err(com, 0, "Bad value - %s", buf); |
| 1159 | else |
| 1160 | *val = v; |
| 1161 | } |
| 1162 | |
| 1163 | static void modify_u16(char *com, const char *prompt, |
| 1164 | const char *format, __u16 *val) |
| 1165 | { |
| 1166 | char buf[200]; |
| 1167 | unsigned long v; |
| 1168 | char *tmp; |
| 1169 | |
| 1170 | sprintf(buf, format, *val); |
| 1171 | printf("%30s [%s] ", prompt, buf); |
| 1172 | if (!fgets(buf, sizeof(buf), stdin)) |
| 1173 | return; |
| 1174 | if (buf[strlen (buf) - 1] == '\n') |
| 1175 | buf[strlen (buf) - 1] = '\0'; |
| 1176 | if (!buf[0]) |
| 1177 | return; |
| 1178 | v = strtoul(buf, &tmp, 0); |
| 1179 | if (*tmp) |
| 1180 | com_err(com, 0, "Bad value - %s", buf); |
| 1181 | else |
| 1182 | *val = v; |
| 1183 | } |
| 1184 | |
| 1185 | static void modify_u32(char *com, const char *prompt, |
| 1186 | const char *format, __u32 *val) |
| 1187 | { |
| 1188 | char buf[200]; |
| 1189 | unsigned long v; |
| 1190 | char *tmp; |
| 1191 | |
| 1192 | sprintf(buf, format, *val); |
| 1193 | printf("%30s [%s] ", prompt, buf); |
| 1194 | if (!fgets(buf, sizeof(buf), stdin)) |
| 1195 | return; |
| 1196 | if (buf[strlen (buf) - 1] == '\n') |
| 1197 | buf[strlen (buf) - 1] = '\0'; |
| 1198 | if (!buf[0]) |
| 1199 | return; |
| 1200 | v = strtoul(buf, &tmp, 0); |
| 1201 | if (*tmp) |
| 1202 | com_err(com, 0, "Bad value - %s", buf); |
| 1203 | else |
| 1204 | *val = v; |
| 1205 | } |
| 1206 | |
| 1207 | |
| 1208 | void do_modify_inode(int argc, char *argv[]) |
| 1209 | { |
| 1210 | struct ext2_inode inode; |
| 1211 | ext2_ino_t inode_num; |
| 1212 | int i; |
| 1213 | unsigned char *frag, *fsize; |
| 1214 | char buf[80]; |
| 1215 | int os; |
| 1216 | const char *hex_format = "0x%x"; |
| 1217 | const char *octal_format = "0%o"; |
| 1218 | const char *decimal_format = "%d"; |
| 1219 | const char *unsignedlong_format = "%lu"; |
| 1220 | |
| 1221 | if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) |
| 1222 | return; |
| 1223 | |
| 1224 | os = current_fs->super->s_creator_os; |
| 1225 | |
| 1226 | if (debugfs_read_inode(inode_num, &inode, argv[1])) |
| 1227 | return; |
| 1228 | |
| 1229 | modify_u16(argv[0], "Mode", octal_format, &inode.i_mode); |
| 1230 | modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid); |
| 1231 | modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid); |
| 1232 | modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size); |
| 1233 | modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime); |
| 1234 | modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime); |
| 1235 | modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime); |
| 1236 | modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime); |
| 1237 | modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count); |
| 1238 | if (os == EXT2_OS_LINUX) |
| 1239 | modify_u16(argv[0], "Block count high", unsignedlong_format, |
| 1240 | &inode.osd2.linux2.l_i_blocks_hi); |
| 1241 | modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks); |
| 1242 | modify_u32(argv[0], "File flags", hex_format, &inode.i_flags); |
| 1243 | modify_u32(argv[0], "Generation", hex_format, &inode.i_generation); |
| 1244 | #if 0 |
| 1245 | modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1); |
| 1246 | #endif |
| 1247 | modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl); |
| 1248 | if (LINUX_S_ISDIR(inode.i_mode)) |
| 1249 | modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl); |
| 1250 | else |
| 1251 | modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high); |
| 1252 | |
| 1253 | if (os == EXT2_OS_HURD) |
| 1254 | modify_u32(argv[0], "Translator Block", |
| 1255 | decimal_format, &inode.osd1.hurd1.h_i_translator); |
| 1256 | |
| 1257 | modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr); |
| 1258 | switch (os) { |
| 1259 | case EXT2_OS_HURD: |
| 1260 | frag = &inode.osd2.hurd2.h_i_frag; |
| 1261 | fsize = &inode.osd2.hurd2.h_i_fsize; |
| 1262 | break; |
| 1263 | default: |
| 1264 | frag = fsize = 0; |
| 1265 | } |
| 1266 | if (frag) |
| 1267 | modify_u8(argv[0], "Fragment number", decimal_format, frag); |
| 1268 | if (fsize) |
| 1269 | modify_u8(argv[0], "Fragment size", decimal_format, fsize); |
| 1270 | |
| 1271 | for (i=0; i < EXT2_NDIR_BLOCKS; i++) { |
| 1272 | sprintf(buf, "Direct Block #%d", i); |
| 1273 | modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]); |
| 1274 | } |
| 1275 | modify_u32(argv[0], "Indirect Block", decimal_format, |
| 1276 | &inode.i_block[EXT2_IND_BLOCK]); |
| 1277 | modify_u32(argv[0], "Double Indirect Block", decimal_format, |
| 1278 | &inode.i_block[EXT2_DIND_BLOCK]); |
| 1279 | modify_u32(argv[0], "Triple Indirect Block", decimal_format, |
| 1280 | &inode.i_block[EXT2_TIND_BLOCK]); |
| 1281 | if (debugfs_write_inode(inode_num, &inode, argv[1])) |
| 1282 | return; |
| 1283 | } |
| 1284 | #endif /* READ_ONLY */ |
| 1285 | |
| 1286 | void do_change_working_dir(int argc, char *argv[]) |
| 1287 | { |
| 1288 | ext2_ino_t inode; |
| 1289 | int retval; |
| 1290 | |
| 1291 | if (common_inode_args_process(argc, argv, &inode, 0)) |
| 1292 | return; |
| 1293 | |
| 1294 | retval = ext2fs_check_directory(current_fs, inode); |
| 1295 | if (retval) { |
| 1296 | com_err(argv[1], retval, 0); |
| 1297 | return; |
| 1298 | } |
| 1299 | cwd = inode; |
| 1300 | return; |
| 1301 | } |
| 1302 | |
| 1303 | void do_print_working_directory(int argc, char *argv[]) |
| 1304 | { |
| 1305 | int retval; |
| 1306 | char *pathname = NULL; |
| 1307 | |
| 1308 | if (common_args_process(argc, argv, 1, 1, |
| 1309 | "print_working_directory", "", 0)) |
| 1310 | return; |
| 1311 | |
| 1312 | retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname); |
| 1313 | if (retval) { |
| 1314 | com_err(argv[0], retval, |
| 1315 | "while trying to get pathname of cwd"); |
| 1316 | } |
| 1317 | printf("[pwd] INODE: %6u PATH: %s\n", |
| 1318 | cwd, pathname ? pathname : "NULL"); |
| 1319 | if (pathname) { |
| 1320 | free(pathname); |
| 1321 | pathname = NULL; |
| 1322 | } |
| 1323 | retval = ext2fs_get_pathname(current_fs, root, 0, &pathname); |
| 1324 | if (retval) { |
| 1325 | com_err(argv[0], retval, |
| 1326 | "while trying to get pathname of root"); |
| 1327 | } |
| 1328 | printf("[root] INODE: %6u PATH: %s\n", |
| 1329 | root, pathname ? pathname : "NULL"); |
| 1330 | if (pathname) { |
| 1331 | free(pathname); |
| 1332 | pathname = NULL; |
| 1333 | } |
| 1334 | return; |
| 1335 | } |
| 1336 | |
| 1337 | #ifndef READ_ONLY |
| 1338 | static void make_link(char *sourcename, char *destname) |
| 1339 | { |
| 1340 | ext2_ino_t ino; |
| 1341 | struct ext2_inode inode; |
| 1342 | int retval; |
| 1343 | ext2_ino_t dir; |
| 1344 | char *dest, *cp, *base_name; |
| 1345 | |
| 1346 | /* |
| 1347 | * Get the source inode |
| 1348 | */ |
| 1349 | ino = string_to_inode(sourcename); |
| 1350 | if (!ino) |
| 1351 | return; |
| 1352 | base_name = strrchr(sourcename, '/'); |
| 1353 | if (base_name) |
| 1354 | base_name++; |
| 1355 | else |
| 1356 | base_name = sourcename; |
| 1357 | /* |
| 1358 | * Figure out the destination. First see if it exists and is |
| 1359 | * a directory. |
| 1360 | */ |
| 1361 | if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir))) |
| 1362 | dest = base_name; |
| 1363 | else { |
| 1364 | /* |
| 1365 | * OK, it doesn't exist. See if it is |
| 1366 | * '<dir>/basename' or 'basename' |
| 1367 | */ |
| 1368 | cp = strrchr(destname, '/'); |
| 1369 | if (cp) { |
| 1370 | *cp = 0; |
| 1371 | dir = string_to_inode(destname); |
| 1372 | if (!dir) |
| 1373 | return; |
| 1374 | dest = cp+1; |
| 1375 | } else { |
| 1376 | dir = cwd; |
| 1377 | dest = destname; |
| 1378 | } |
| 1379 | } |
| 1380 | |
| 1381 | if (debugfs_read_inode(ino, &inode, sourcename)) |
| 1382 | return; |
| 1383 | |
| 1384 | retval = ext2fs_link(current_fs, dir, dest, ino, |
| 1385 | ext2_file_type(inode.i_mode)); |
| 1386 | if (retval) |
| 1387 | com_err("make_link", retval, 0); |
| 1388 | return; |
| 1389 | } |
| 1390 | |
| 1391 | |
| 1392 | void do_link(int argc, char *argv[]) |
| 1393 | { |
| 1394 | if (common_args_process(argc, argv, 3, 3, "link", |
| 1395 | "<source file> <dest_name>", CHECK_FS_RW)) |
| 1396 | return; |
| 1397 | |
| 1398 | make_link(argv[1], argv[2]); |
| 1399 | } |
| 1400 | |
| 1401 | static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr, |
| 1402 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
| 1403 | blk64_t ref_block EXT2FS_ATTR((unused)), |
| 1404 | int ref_offset EXT2FS_ATTR((unused)), |
| 1405 | void *private EXT2FS_ATTR((unused))) |
| 1406 | { |
| 1407 | blk64_t block; |
| 1408 | |
| 1409 | block = *blocknr; |
| 1410 | ext2fs_block_alloc_stats2(fs, block, +1); |
| 1411 | return 0; |
| 1412 | } |
| 1413 | |
| 1414 | void do_undel(int argc, char *argv[]) |
| 1415 | { |
| 1416 | ext2_ino_t ino; |
| 1417 | struct ext2_inode inode; |
| 1418 | |
| 1419 | if (common_args_process(argc, argv, 2, 3, "undelete", |
| 1420 | "<inode_num> [dest_name]", |
| 1421 | CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 1422 | return; |
| 1423 | |
| 1424 | ino = string_to_inode(argv[1]); |
| 1425 | if (!ino) |
| 1426 | return; |
| 1427 | |
| 1428 | if (debugfs_read_inode(ino, &inode, argv[1])) |
| 1429 | return; |
| 1430 | |
| 1431 | if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) { |
| 1432 | com_err(argv[1], 0, "Inode is not marked as deleted"); |
| 1433 | return; |
| 1434 | } |
| 1435 | |
| 1436 | /* |
| 1437 | * XXX this function doesn't handle changing the links count on the |
| 1438 | * parent directory when undeleting a directory. |
| 1439 | */ |
| 1440 | inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1; |
| 1441 | inode.i_dtime = 0; |
| 1442 | |
| 1443 | if (debugfs_write_inode(ino, &inode, argv[0])) |
| 1444 | return; |
| 1445 | |
| 1446 | ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL, |
| 1447 | mark_blocks_proc, NULL); |
| 1448 | |
| 1449 | ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0); |
| 1450 | |
| 1451 | if (argc > 2) |
| 1452 | make_link(argv[1], argv[2]); |
| 1453 | } |
| 1454 | |
| 1455 | static void unlink_file_by_name(char *filename) |
| 1456 | { |
| 1457 | int retval; |
| 1458 | ext2_ino_t dir; |
| 1459 | char *base_name; |
| 1460 | |
| 1461 | base_name = strrchr(filename, '/'); |
| 1462 | if (base_name) { |
| 1463 | *base_name++ = '\0'; |
| 1464 | dir = string_to_inode(filename); |
| 1465 | if (!dir) |
| 1466 | return; |
| 1467 | } else { |
| 1468 | dir = cwd; |
| 1469 | base_name = filename; |
| 1470 | } |
| 1471 | retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0); |
| 1472 | if (retval) |
| 1473 | com_err("unlink_file_by_name", retval, 0); |
| 1474 | return; |
| 1475 | } |
| 1476 | |
| 1477 | void do_unlink(int argc, char *argv[]) |
| 1478 | { |
| 1479 | if (common_args_process(argc, argv, 2, 2, "link", |
| 1480 | "<pathname>", CHECK_FS_RW)) |
| 1481 | return; |
| 1482 | |
| 1483 | unlink_file_by_name(argv[1]); |
| 1484 | } |
| 1485 | #endif /* READ_ONLY */ |
| 1486 | |
| 1487 | void do_find_free_block(int argc, char *argv[]) |
| 1488 | { |
| 1489 | blk64_t free_blk, goal, first_free = 0; |
| 1490 | int count; |
| 1491 | errcode_t retval; |
| 1492 | char *tmp; |
| 1493 | |
| 1494 | if ((argc > 3) || (argc==2 && *argv[1] == '?')) { |
| 1495 | com_err(argv[0], 0, "Usage: find_free_block [count [goal]]"); |
| 1496 | return; |
| 1497 | } |
| 1498 | if (check_fs_open(argv[0])) |
| 1499 | return; |
| 1500 | |
| 1501 | if (argc > 1) { |
| 1502 | count = strtol(argv[1],&tmp,0); |
| 1503 | if (*tmp) { |
| 1504 | com_err(argv[0], 0, "Bad count - %s", argv[1]); |
| 1505 | return; |
| 1506 | } |
| 1507 | } else |
| 1508 | count = 1; |
| 1509 | |
| 1510 | if (argc > 2) { |
| 1511 | goal = strtol(argv[2], &tmp, 0); |
| 1512 | if (*tmp) { |
| 1513 | com_err(argv[0], 0, "Bad goal - %s", argv[1]); |
| 1514 | return; |
| 1515 | } |
| 1516 | } |
| 1517 | else |
| 1518 | goal = current_fs->super->s_first_data_block; |
| 1519 | |
| 1520 | printf("Free blocks found: "); |
| 1521 | free_blk = goal - 1; |
| 1522 | while (count-- > 0) { |
| 1523 | retval = ext2fs_new_block2(current_fs, free_blk + 1, 0, |
| 1524 | &free_blk); |
| 1525 | if (first_free) { |
| 1526 | if (first_free == free_blk) |
| 1527 | break; |
| 1528 | } else |
| 1529 | first_free = free_blk; |
| 1530 | if (retval) { |
| 1531 | com_err("ext2fs_new_block", retval, 0); |
| 1532 | return; |
| 1533 | } else |
| 1534 | printf("%llu ", free_blk); |
| 1535 | } |
| 1536 | printf("\n"); |
| 1537 | } |
| 1538 | |
| 1539 | void do_find_free_inode(int argc, char *argv[]) |
| 1540 | { |
| 1541 | ext2_ino_t free_inode, dir; |
| 1542 | int mode; |
| 1543 | int retval; |
| 1544 | char *tmp; |
| 1545 | |
| 1546 | if (argc > 3 || (argc>1 && *argv[1] == '?')) { |
| 1547 | com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]"); |
| 1548 | return; |
| 1549 | } |
| 1550 | if (check_fs_open(argv[0])) |
| 1551 | return; |
| 1552 | |
| 1553 | if (argc > 1) { |
| 1554 | dir = strtol(argv[1], &tmp, 0); |
| 1555 | if (*tmp) { |
| 1556 | com_err(argv[0], 0, "Bad dir - %s", argv[1]); |
| 1557 | return; |
| 1558 | } |
| 1559 | } |
| 1560 | else |
| 1561 | dir = root; |
| 1562 | if (argc > 2) { |
| 1563 | mode = strtol(argv[2], &tmp, 0); |
| 1564 | if (*tmp) { |
| 1565 | com_err(argv[0], 0, "Bad mode - %s", argv[2]); |
| 1566 | return; |
| 1567 | } |
| 1568 | } else |
| 1569 | mode = 010755; |
| 1570 | |
| 1571 | retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode); |
| 1572 | if (retval) |
| 1573 | com_err("ext2fs_new_inode", retval, 0); |
| 1574 | else |
| 1575 | printf("Free inode found: %u\n", free_inode); |
| 1576 | } |
| 1577 | |
| 1578 | #ifndef READ_ONLY |
| 1579 | static errcode_t copy_file(int fd, ext2_ino_t newfile, int bufsize, int make_holes) |
| 1580 | { |
| 1581 | ext2_file_t e2_file; |
| 1582 | errcode_t retval; |
| 1583 | int got; |
| 1584 | unsigned int written; |
| 1585 | char *buf; |
| 1586 | char *ptr; |
| 1587 | char *zero_buf; |
| 1588 | int cmp; |
| 1589 | |
| 1590 | retval = ext2fs_file_open(current_fs, newfile, |
| 1591 | EXT2_FILE_WRITE, &e2_file); |
| 1592 | if (retval) |
| 1593 | return retval; |
| 1594 | |
| 1595 | retval = ext2fs_get_mem(bufsize, &buf); |
| 1596 | if (retval) { |
| 1597 | com_err("copy_file", retval, "can't allocate buffer\n"); |
| 1598 | return retval; |
| 1599 | } |
| 1600 | |
| 1601 | /* This is used for checking whether the whole block is zero */ |
| 1602 | retval = ext2fs_get_memzero(bufsize, &zero_buf); |
| 1603 | if (retval) { |
| 1604 | com_err("copy_file", retval, "can't allocate buffer\n"); |
| 1605 | ext2fs_free_mem(&buf); |
| 1606 | return retval; |
| 1607 | } |
| 1608 | |
| 1609 | while (1) { |
| 1610 | got = read(fd, buf, bufsize); |
| 1611 | if (got == 0) |
| 1612 | break; |
| 1613 | if (got < 0) { |
| 1614 | retval = errno; |
| 1615 | goto fail; |
| 1616 | } |
| 1617 | ptr = buf; |
| 1618 | |
| 1619 | /* Sparse copy */ |
| 1620 | if (make_holes) { |
| 1621 | /* Check whether all is zero */ |
| 1622 | cmp = memcmp(ptr, zero_buf, got); |
| 1623 | if (cmp == 0) { |
| 1624 | /* The whole block is zero, make a hole */ |
| 1625 | retval = ext2fs_file_lseek(e2_file, got, EXT2_SEEK_CUR, NULL); |
| 1626 | if (retval) |
| 1627 | goto fail; |
| 1628 | got = 0; |
| 1629 | } |
| 1630 | } |
| 1631 | |
| 1632 | /* Normal copy */ |
| 1633 | while (got > 0) { |
| 1634 | retval = ext2fs_file_write(e2_file, ptr, |
| 1635 | got, &written); |
| 1636 | if (retval) |
| 1637 | goto fail; |
| 1638 | |
| 1639 | got -= written; |
| 1640 | ptr += written; |
| 1641 | } |
| 1642 | } |
| 1643 | ext2fs_free_mem(&buf); |
| 1644 | ext2fs_free_mem(&zero_buf); |
| 1645 | retval = ext2fs_file_close(e2_file); |
| 1646 | return retval; |
| 1647 | |
| 1648 | fail: |
| 1649 | ext2fs_free_mem(&buf); |
| 1650 | ext2fs_free_mem(&zero_buf); |
| 1651 | (void) ext2fs_file_close(e2_file); |
| 1652 | return retval; |
| 1653 | } |
| 1654 | |
| 1655 | |
| 1656 | void do_write(int argc, char *argv[]) |
| 1657 | { |
| 1658 | int fd; |
| 1659 | struct stat statbuf; |
| 1660 | ext2_ino_t newfile; |
| 1661 | errcode_t retval; |
| 1662 | struct ext2_inode inode; |
| 1663 | int bufsize = IO_BUFSIZE; |
| 1664 | int make_holes = 0; |
| 1665 | |
| 1666 | if (common_args_process(argc, argv, 3, 3, "write", |
| 1667 | "<native file> <new file>", CHECK_FS_RW)) |
| 1668 | return; |
| 1669 | |
| 1670 | fd = open(argv[1], O_RDONLY); |
| 1671 | if (fd < 0) { |
| 1672 | com_err(argv[1], errno, 0); |
| 1673 | return; |
| 1674 | } |
| 1675 | if (fstat(fd, &statbuf) < 0) { |
| 1676 | com_err(argv[1], errno, 0); |
| 1677 | close(fd); |
| 1678 | return; |
| 1679 | } |
| 1680 | |
| 1681 | retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile); |
| 1682 | if (retval == 0) { |
| 1683 | com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]); |
| 1684 | close(fd); |
| 1685 | return; |
| 1686 | } |
| 1687 | |
| 1688 | retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); |
| 1689 | if (retval) { |
| 1690 | com_err(argv[0], retval, 0); |
| 1691 | close(fd); |
| 1692 | return; |
| 1693 | } |
| 1694 | printf("Allocated inode: %u\n", newfile); |
| 1695 | retval = ext2fs_link(current_fs, cwd, argv[2], newfile, |
| 1696 | EXT2_FT_REG_FILE); |
| 1697 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
| 1698 | retval = ext2fs_expand_dir(current_fs, cwd); |
| 1699 | if (retval) { |
| 1700 | com_err(argv[0], retval, "while expanding directory"); |
| 1701 | close(fd); |
| 1702 | return; |
| 1703 | } |
| 1704 | retval = ext2fs_link(current_fs, cwd, argv[2], newfile, |
| 1705 | EXT2_FT_REG_FILE); |
| 1706 | } |
| 1707 | if (retval) { |
| 1708 | com_err(argv[2], retval, 0); |
| 1709 | close(fd); |
| 1710 | return; |
| 1711 | } |
| 1712 | if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) |
| 1713 | com_err(argv[0], 0, "Warning: inode already set"); |
| 1714 | ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0); |
| 1715 | memset(&inode, 0, sizeof(inode)); |
| 1716 | inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG; |
| 1717 | inode.i_atime = inode.i_ctime = inode.i_mtime = |
| 1718 | current_fs->now ? current_fs->now : time(0); |
| 1719 | inode.i_links_count = 1; |
| 1720 | inode.i_size = statbuf.st_size; |
| 1721 | if (current_fs->super->s_feature_incompat & |
| 1722 | EXT3_FEATURE_INCOMPAT_EXTENTS) { |
| 1723 | int i; |
| 1724 | struct ext3_extent_header *eh; |
| 1725 | |
| 1726 | eh = (struct ext3_extent_header *) &inode.i_block[0]; |
| 1727 | eh->eh_depth = 0; |
| 1728 | eh->eh_entries = 0; |
| 1729 | eh->eh_magic = ext2fs_cpu_to_le16(EXT3_EXT_MAGIC); |
| 1730 | i = (sizeof(inode.i_block) - sizeof(*eh)) / |
| 1731 | sizeof(struct ext3_extent); |
| 1732 | eh->eh_max = ext2fs_cpu_to_le16(i); |
| 1733 | inode.i_flags |= EXT4_EXTENTS_FL; |
| 1734 | } |
| 1735 | if (debugfs_write_new_inode(newfile, &inode, argv[0])) { |
| 1736 | close(fd); |
| 1737 | return; |
| 1738 | } |
| 1739 | if (LINUX_S_ISREG(inode.i_mode)) { |
| 1740 | if (statbuf.st_blocks < statbuf.st_size / S_BLKSIZE) { |
| 1741 | make_holes = 1; |
| 1742 | /* |
| 1743 | * Use I/O blocksize as buffer size when |
| 1744 | * copying sparse files. |
| 1745 | */ |
| 1746 | bufsize = statbuf.st_blksize; |
| 1747 | } |
| 1748 | retval = copy_file(fd, newfile, bufsize, make_holes); |
| 1749 | if (retval) |
| 1750 | com_err("copy_file", retval, 0); |
| 1751 | } |
| 1752 | close(fd); |
| 1753 | } |
| 1754 | |
| 1755 | void do_mknod(int argc, char *argv[]) |
| 1756 | { |
| 1757 | unsigned long mode, major, minor; |
| 1758 | ext2_ino_t newfile; |
| 1759 | errcode_t retval; |
| 1760 | struct ext2_inode inode; |
| 1761 | int filetype, nr; |
| 1762 | |
| 1763 | if (check_fs_open(argv[0])) |
| 1764 | return; |
| 1765 | if (argc < 3 || argv[2][1]) { |
| 1766 | usage: |
| 1767 | com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]"); |
| 1768 | return; |
| 1769 | } |
| 1770 | mode = minor = major = 0; |
| 1771 | switch (argv[2][0]) { |
| 1772 | case 'p': |
| 1773 | mode = LINUX_S_IFIFO; |
| 1774 | filetype = EXT2_FT_FIFO; |
| 1775 | nr = 3; |
| 1776 | break; |
| 1777 | case 'c': |
| 1778 | mode = LINUX_S_IFCHR; |
| 1779 | filetype = EXT2_FT_CHRDEV; |
| 1780 | nr = 5; |
| 1781 | break; |
| 1782 | case 'b': |
| 1783 | mode = LINUX_S_IFBLK; |
| 1784 | filetype = EXT2_FT_BLKDEV; |
| 1785 | nr = 5; |
| 1786 | break; |
| 1787 | default: |
| 1788 | filetype = 0; |
| 1789 | nr = 0; |
| 1790 | } |
| 1791 | if (nr == 5) { |
| 1792 | major = strtoul(argv[3], argv+3, 0); |
| 1793 | minor = strtoul(argv[4], argv+4, 0); |
| 1794 | if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0]) |
| 1795 | nr = 0; |
| 1796 | } |
| 1797 | if (argc != nr) |
| 1798 | goto usage; |
| 1799 | if (check_fs_read_write(argv[0])) |
| 1800 | return; |
| 1801 | retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile); |
| 1802 | if (retval) { |
| 1803 | com_err(argv[0], retval, 0); |
| 1804 | return; |
| 1805 | } |
| 1806 | printf("Allocated inode: %u\n", newfile); |
| 1807 | retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype); |
| 1808 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
| 1809 | retval = ext2fs_expand_dir(current_fs, cwd); |
| 1810 | if (retval) { |
| 1811 | com_err(argv[0], retval, "while expanding directory"); |
| 1812 | return; |
| 1813 | } |
| 1814 | retval = ext2fs_link(current_fs, cwd, argv[1], newfile, |
| 1815 | filetype); |
| 1816 | } |
| 1817 | if (retval) { |
| 1818 | com_err(argv[1], retval, 0); |
| 1819 | return; |
| 1820 | } |
| 1821 | if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile)) |
| 1822 | com_err(argv[0], 0, "Warning: inode already set"); |
| 1823 | ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0); |
| 1824 | memset(&inode, 0, sizeof(inode)); |
| 1825 | inode.i_mode = mode; |
| 1826 | inode.i_atime = inode.i_ctime = inode.i_mtime = |
| 1827 | current_fs->now ? current_fs->now : time(0); |
| 1828 | if ((major < 256) && (minor < 256)) { |
| 1829 | inode.i_block[0] = major*256+minor; |
| 1830 | inode.i_block[1] = 0; |
| 1831 | } else { |
| 1832 | inode.i_block[0] = 0; |
| 1833 | inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12); |
| 1834 | } |
| 1835 | inode.i_links_count = 1; |
| 1836 | if (debugfs_write_new_inode(newfile, &inode, argv[0])) |
| 1837 | return; |
| 1838 | } |
| 1839 | |
| 1840 | void do_mkdir(int argc, char *argv[]) |
| 1841 | { |
| 1842 | char *cp; |
| 1843 | ext2_ino_t parent; |
| 1844 | char *name; |
| 1845 | errcode_t retval; |
| 1846 | |
| 1847 | if (common_args_process(argc, argv, 2, 2, "mkdir", |
| 1848 | "<filename>", CHECK_FS_RW)) |
| 1849 | return; |
| 1850 | |
| 1851 | cp = strrchr(argv[1], '/'); |
| 1852 | if (cp) { |
| 1853 | *cp = 0; |
| 1854 | parent = string_to_inode(argv[1]); |
| 1855 | if (!parent) { |
| 1856 | com_err(argv[1], ENOENT, 0); |
| 1857 | return; |
| 1858 | } |
| 1859 | name = cp+1; |
| 1860 | } else { |
| 1861 | parent = cwd; |
| 1862 | name = argv[1]; |
| 1863 | } |
| 1864 | |
| 1865 | try_again: |
| 1866 | retval = ext2fs_mkdir(current_fs, parent, 0, name); |
| 1867 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
| 1868 | retval = ext2fs_expand_dir(current_fs, parent); |
| 1869 | if (retval) { |
| 1870 | com_err(argv[0], retval, "while expanding directory"); |
| 1871 | return; |
| 1872 | } |
| 1873 | goto try_again; |
| 1874 | } |
| 1875 | if (retval) { |
| 1876 | com_err("ext2fs_mkdir", retval, 0); |
| 1877 | return; |
| 1878 | } |
| 1879 | |
| 1880 | } |
| 1881 | |
| 1882 | static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr, |
| 1883 | e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)), |
| 1884 | blk64_t ref_block EXT2FS_ATTR((unused)), |
| 1885 | int ref_offset EXT2FS_ATTR((unused)), |
| 1886 | void *private EXT2FS_ATTR((unused))) |
| 1887 | { |
| 1888 | blk64_t block; |
| 1889 | |
| 1890 | block = *blocknr; |
| 1891 | ext2fs_block_alloc_stats2(fs, block, -1); |
| 1892 | return 0; |
| 1893 | } |
| 1894 | |
| 1895 | static void kill_file_by_inode(ext2_ino_t inode) |
| 1896 | { |
| 1897 | struct ext2_inode inode_buf; |
| 1898 | |
| 1899 | if (debugfs_read_inode(inode, &inode_buf, 0)) |
| 1900 | return; |
| 1901 | inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0); |
| 1902 | if (debugfs_write_inode(inode, &inode_buf, 0)) |
| 1903 | return; |
| 1904 | if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) |
| 1905 | return; |
| 1906 | |
| 1907 | ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL, |
| 1908 | release_blocks_proc, NULL); |
| 1909 | printf("\n"); |
| 1910 | ext2fs_inode_alloc_stats2(current_fs, inode, -1, |
| 1911 | LINUX_S_ISDIR(inode_buf.i_mode)); |
| 1912 | } |
| 1913 | |
| 1914 | |
| 1915 | void do_kill_file(int argc, char *argv[]) |
| 1916 | { |
| 1917 | ext2_ino_t inode_num; |
| 1918 | |
| 1919 | if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW)) |
| 1920 | return; |
| 1921 | |
| 1922 | kill_file_by_inode(inode_num); |
| 1923 | } |
| 1924 | |
| 1925 | void do_rm(int argc, char *argv[]) |
| 1926 | { |
| 1927 | int retval; |
| 1928 | ext2_ino_t inode_num; |
| 1929 | struct ext2_inode inode; |
| 1930 | |
| 1931 | if (common_args_process(argc, argv, 2, 2, "rm", |
| 1932 | "<filename>", CHECK_FS_RW)) |
| 1933 | return; |
| 1934 | |
| 1935 | retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); |
| 1936 | if (retval) { |
| 1937 | com_err(argv[0], retval, "while trying to resolve filename"); |
| 1938 | return; |
| 1939 | } |
| 1940 | |
| 1941 | if (debugfs_read_inode(inode_num, &inode, argv[0])) |
| 1942 | return; |
| 1943 | |
| 1944 | if (LINUX_S_ISDIR(inode.i_mode)) { |
| 1945 | com_err(argv[0], 0, "file is a directory"); |
| 1946 | return; |
| 1947 | } |
| 1948 | |
| 1949 | --inode.i_links_count; |
| 1950 | if (debugfs_write_inode(inode_num, &inode, argv[0])) |
| 1951 | return; |
| 1952 | |
| 1953 | unlink_file_by_name(argv[1]); |
| 1954 | if (inode.i_links_count == 0) |
| 1955 | kill_file_by_inode(inode_num); |
| 1956 | } |
| 1957 | |
| 1958 | struct rd_struct { |
| 1959 | ext2_ino_t parent; |
| 1960 | int empty; |
| 1961 | }; |
| 1962 | |
| 1963 | static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)), |
| 1964 | int entry EXT2FS_ATTR((unused)), |
| 1965 | struct ext2_dir_entry *dirent, |
| 1966 | int offset EXT2FS_ATTR((unused)), |
| 1967 | int blocksize EXT2FS_ATTR((unused)), |
| 1968 | char *buf EXT2FS_ATTR((unused)), |
| 1969 | void *private) |
| 1970 | { |
| 1971 | struct rd_struct *rds = (struct rd_struct *) private; |
| 1972 | |
| 1973 | if (dirent->inode == 0) |
| 1974 | return 0; |
| 1975 | if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.')) |
| 1976 | return 0; |
| 1977 | if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') && |
| 1978 | (dirent->name[1] == '.')) { |
| 1979 | rds->parent = dirent->inode; |
| 1980 | return 0; |
| 1981 | } |
| 1982 | rds->empty = 0; |
| 1983 | return 0; |
| 1984 | } |
| 1985 | |
| 1986 | void do_rmdir(int argc, char *argv[]) |
| 1987 | { |
| 1988 | int retval; |
| 1989 | ext2_ino_t inode_num; |
| 1990 | struct ext2_inode inode; |
| 1991 | struct rd_struct rds; |
| 1992 | |
| 1993 | if (common_args_process(argc, argv, 2, 2, "rmdir", |
| 1994 | "<filename>", CHECK_FS_RW)) |
| 1995 | return; |
| 1996 | |
| 1997 | retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num); |
| 1998 | if (retval) { |
| 1999 | com_err(argv[0], retval, "while trying to resolve filename"); |
| 2000 | return; |
| 2001 | } |
| 2002 | |
| 2003 | if (debugfs_read_inode(inode_num, &inode, argv[0])) |
| 2004 | return; |
| 2005 | |
| 2006 | if (!LINUX_S_ISDIR(inode.i_mode)) { |
| 2007 | com_err(argv[0], 0, "file is not a directory"); |
| 2008 | return; |
| 2009 | } |
| 2010 | |
| 2011 | rds.parent = 0; |
| 2012 | rds.empty = 1; |
| 2013 | |
| 2014 | retval = ext2fs_dir_iterate2(current_fs, inode_num, 0, |
| 2015 | 0, rmdir_proc, &rds); |
| 2016 | if (retval) { |
| 2017 | com_err(argv[0], retval, "while iterating over directory"); |
| 2018 | return; |
| 2019 | } |
| 2020 | if (rds.empty == 0) { |
| 2021 | com_err(argv[0], 0, "directory not empty"); |
| 2022 | return; |
| 2023 | } |
| 2024 | |
| 2025 | inode.i_links_count = 0; |
| 2026 | if (debugfs_write_inode(inode_num, &inode, argv[0])) |
| 2027 | return; |
| 2028 | |
| 2029 | unlink_file_by_name(argv[1]); |
| 2030 | kill_file_by_inode(inode_num); |
| 2031 | |
| 2032 | if (rds.parent) { |
| 2033 | if (debugfs_read_inode(rds.parent, &inode, argv[0])) |
| 2034 | return; |
| 2035 | if (inode.i_links_count > 1) |
| 2036 | inode.i_links_count--; |
| 2037 | if (debugfs_write_inode(rds.parent, &inode, argv[0])) |
| 2038 | return; |
| 2039 | } |
| 2040 | } |
| 2041 | #endif /* READ_ONLY */ |
| 2042 | |
| 2043 | void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)), |
| 2044 | char *argv[] EXT2FS_ATTR((unused))) |
| 2045 | { |
| 2046 | if (current_fs) |
| 2047 | printf("Open mode: read-%s\n", |
| 2048 | current_fs->flags & EXT2_FLAG_RW ? "write" : "only"); |
| 2049 | printf("Filesystem in use: %s\n", |
| 2050 | current_fs ? current_fs->device_name : "--none--"); |
| 2051 | } |
| 2052 | |
| 2053 | #ifndef READ_ONLY |
| 2054 | void do_expand_dir(int argc, char *argv[]) |
| 2055 | { |
| 2056 | ext2_ino_t inode; |
| 2057 | int retval; |
| 2058 | |
| 2059 | if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW)) |
| 2060 | return; |
| 2061 | |
| 2062 | retval = ext2fs_expand_dir(current_fs, inode); |
| 2063 | if (retval) |
| 2064 | com_err("ext2fs_expand_dir", retval, 0); |
| 2065 | return; |
| 2066 | } |
| 2067 | |
| 2068 | void do_features(int argc, char *argv[]) |
| 2069 | { |
| 2070 | int i; |
| 2071 | |
| 2072 | if (check_fs_open(argv[0])) |
| 2073 | return; |
| 2074 | |
| 2075 | if ((argc != 1) && check_fs_read_write(argv[0])) |
| 2076 | return; |
| 2077 | for (i=1; i < argc; i++) { |
| 2078 | if (e2p_edit_feature(argv[i], |
| 2079 | ¤t_fs->super->s_feature_compat, 0)) |
| 2080 | com_err(argv[0], 0, "Unknown feature: %s\n", |
| 2081 | argv[i]); |
| 2082 | else |
| 2083 | ext2fs_mark_super_dirty(current_fs); |
| 2084 | } |
| 2085 | print_features(current_fs->super, stdout); |
| 2086 | } |
| 2087 | #endif /* READ_ONLY */ |
| 2088 | |
| 2089 | void do_bmap(int argc, char *argv[]) |
| 2090 | { |
| 2091 | ext2_ino_t ino; |
| 2092 | blk64_t blk, pblk; |
| 2093 | int err; |
| 2094 | errcode_t errcode; |
| 2095 | |
| 2096 | if (common_args_process(argc, argv, 3, 3, argv[0], |
| 2097 | "<file> logical_blk", 0)) |
| 2098 | return; |
| 2099 | |
| 2100 | ino = string_to_inode(argv[1]); |
| 2101 | if (!ino) |
| 2102 | return; |
| 2103 | err = strtoblk(argv[0], argv[2], &blk); |
| 2104 | if (err) |
| 2105 | return; |
| 2106 | |
| 2107 | errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk); |
| 2108 | if (errcode) { |
| 2109 | com_err(argv[0], errcode, |
| 2110 | "while mapping logical block %llu\n", blk); |
| 2111 | return; |
| 2112 | } |
| 2113 | printf("%llu\n", pblk); |
| 2114 | } |
| 2115 | |
| 2116 | void do_imap(int argc, char *argv[]) |
| 2117 | { |
| 2118 | ext2_ino_t ino; |
| 2119 | unsigned long group, block, block_nr, offset; |
| 2120 | |
| 2121 | if (common_args_process(argc, argv, 2, 2, argv[0], |
| 2122 | "<file>", 0)) |
| 2123 | return; |
| 2124 | ino = string_to_inode(argv[1]); |
| 2125 | if (!ino) |
| 2126 | return; |
| 2127 | |
| 2128 | group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super); |
| 2129 | offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) * |
| 2130 | EXT2_INODE_SIZE(current_fs->super); |
| 2131 | block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super); |
| 2132 | if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) { |
| 2133 | com_err(argv[0], 0, "Inode table for group %lu is missing\n", |
| 2134 | group); |
| 2135 | return; |
| 2136 | } |
| 2137 | block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) + |
| 2138 | block; |
| 2139 | offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1); |
| 2140 | |
| 2141 | printf("Inode %d is part of block group %lu\n" |
| 2142 | "\tlocated at block %lu, offset 0x%04lx\n", ino, group, |
| 2143 | block_nr, offset); |
| 2144 | |
| 2145 | } |
| 2146 | |
| 2147 | #ifndef READ_ONLY |
| 2148 | void do_set_current_time(int argc, char *argv[]) |
| 2149 | { |
| 2150 | time_t now; |
| 2151 | |
| 2152 | if (common_args_process(argc, argv, 2, 2, argv[0], |
| 2153 | "<time>", 0)) |
| 2154 | return; |
| 2155 | |
| 2156 | now = string_to_time(argv[1]); |
| 2157 | if (now == ((time_t) -1)) { |
| 2158 | com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n", |
| 2159 | argv[1]); |
| 2160 | return; |
| 2161 | |
| 2162 | } else { |
| 2163 | printf("Setting current time to %s\n", time_to_string(now)); |
| 2164 | current_fs->now = now; |
| 2165 | } |
| 2166 | } |
| 2167 | #endif /* READ_ONLY */ |
| 2168 | |
| 2169 | static int find_supp_feature(__u32 *supp, int feature_type, char *name) |
| 2170 | { |
| 2171 | int compat, bit, ret; |
| 2172 | unsigned int feature_mask; |
| 2173 | |
| 2174 | if (name) { |
| 2175 | if (feature_type == E2P_FS_FEATURE) |
| 2176 | ret = e2p_string2feature(name, &compat, &feature_mask); |
| 2177 | else |
| 2178 | ret = e2p_jrnl_string2feature(name, &compat, |
| 2179 | &feature_mask); |
| 2180 | if (ret) |
| 2181 | return ret; |
| 2182 | |
| 2183 | if (!(supp[compat] & feature_mask)) |
| 2184 | return 1; |
| 2185 | } else { |
| 2186 | for (compat = 0; compat < 3; compat++) { |
| 2187 | for (bit = 0, feature_mask = 1; bit < 32; |
| 2188 | bit++, feature_mask <<= 1) { |
| 2189 | if (supp[compat] & feature_mask) { |
| 2190 | if (feature_type == E2P_FS_FEATURE) |
| 2191 | fprintf(stdout, " %s", |
| 2192 | e2p_feature2string(compat, |
| 2193 | feature_mask)); |
| 2194 | else |
| 2195 | fprintf(stdout, " %s", |
| 2196 | e2p_jrnl_feature2string(compat, |
| 2197 | feature_mask)); |
| 2198 | } |
| 2199 | } |
| 2200 | } |
| 2201 | fprintf(stdout, "\n"); |
| 2202 | } |
| 2203 | |
| 2204 | return 0; |
| 2205 | } |
| 2206 | |
| 2207 | void do_supported_features(int argc, char *argv[]) |
| 2208 | { |
| 2209 | int ret; |
| 2210 | __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP, |
| 2211 | EXT2_LIB_FEATURE_INCOMPAT_SUPP, |
| 2212 | EXT2_LIB_FEATURE_RO_COMPAT_SUPP }; |
| 2213 | __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES, |
| 2214 | JFS_KNOWN_INCOMPAT_FEATURES, |
| 2215 | JFS_KNOWN_ROCOMPAT_FEATURES }; |
| 2216 | |
| 2217 | if (argc > 1) { |
| 2218 | ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]); |
| 2219 | if (ret) { |
| 2220 | ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, |
| 2221 | argv[1]); |
| 2222 | } |
| 2223 | if (ret) |
| 2224 | com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]); |
| 2225 | else |
| 2226 | fprintf(stdout, "Supported feature: %s\n", argv[1]); |
| 2227 | } else { |
| 2228 | fprintf(stdout, "Supported features:"); |
| 2229 | ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL); |
| 2230 | ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL); |
| 2231 | } |
| 2232 | } |
| 2233 | |
| 2234 | #ifndef READ_ONLY |
| 2235 | void do_punch(int argc, char *argv[]) |
| 2236 | { |
| 2237 | ext2_ino_t ino; |
| 2238 | blk64_t start, end; |
| 2239 | int err; |
| 2240 | errcode_t errcode; |
| 2241 | |
| 2242 | if (common_args_process(argc, argv, 3, 4, argv[0], |
| 2243 | "<file> start_blk [end_blk]", |
| 2244 | CHECK_FS_RW | CHECK_FS_BITMAPS)) |
| 2245 | return; |
| 2246 | |
| 2247 | ino = string_to_inode(argv[1]); |
| 2248 | if (!ino) |
| 2249 | return; |
| 2250 | err = strtoblk(argv[0], argv[2], &start); |
| 2251 | if (err) |
| 2252 | return; |
| 2253 | if (argc == 4) { |
| 2254 | err = strtoblk(argv[0], argv[3], &end); |
| 2255 | if (err) |
| 2256 | return; |
| 2257 | } else |
| 2258 | end = ~0; |
| 2259 | |
| 2260 | errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end); |
| 2261 | |
| 2262 | if (errcode) { |
| 2263 | com_err(argv[0], errcode, |
| 2264 | "while truncating inode %u from %llu to %llu\n", ino, |
| 2265 | (unsigned long long) start, (unsigned long long) end); |
| 2266 | return; |
| 2267 | } |
| 2268 | } |
| 2269 | #endif /* READ_ONLY */ |
| 2270 | |
| 2271 | void do_symlink(int argc, char *argv[]) |
| 2272 | { |
| 2273 | char *cp; |
| 2274 | ext2_ino_t parent; |
| 2275 | char *name, *target; |
| 2276 | errcode_t retval; |
| 2277 | |
| 2278 | if (common_args_process(argc, argv, 3, 3, "symlink", |
| 2279 | "<filename> <target>", CHECK_FS_RW)) |
| 2280 | return; |
| 2281 | |
| 2282 | cp = strrchr(argv[1], '/'); |
| 2283 | if (cp) { |
| 2284 | *cp = 0; |
| 2285 | parent = string_to_inode(argv[1]); |
| 2286 | if (!parent) { |
| 2287 | com_err(argv[1], ENOENT, 0); |
| 2288 | return; |
| 2289 | } |
| 2290 | name = cp+1; |
| 2291 | } else { |
| 2292 | parent = cwd; |
| 2293 | name = argv[1]; |
| 2294 | } |
| 2295 | target = argv[2]; |
| 2296 | |
| 2297 | try_again: |
| 2298 | retval = ext2fs_symlink(current_fs, parent, 0, name, target); |
| 2299 | if (retval == EXT2_ET_DIR_NO_SPACE) { |
| 2300 | retval = ext2fs_expand_dir(current_fs, parent); |
| 2301 | if (retval) { |
| 2302 | com_err(argv[0], retval, "while expanding directory"); |
| 2303 | return; |
| 2304 | } |
| 2305 | goto try_again; |
| 2306 | } |
| 2307 | if (retval) { |
| 2308 | com_err("ext2fs_symlink", retval, 0); |
| 2309 | return; |
| 2310 | } |
| 2311 | |
| 2312 | } |
| 2313 | |
| 2314 | void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[]) |
| 2315 | { |
| 2316 | struct ext2_super_block *sb; |
| 2317 | struct mmp_struct *mmp_s; |
| 2318 | time_t t; |
| 2319 | errcode_t retval = 0; |
| 2320 | |
| 2321 | if (check_fs_open(argv[0])) |
| 2322 | return; |
| 2323 | |
| 2324 | sb = current_fs->super; |
| 2325 | |
| 2326 | if (current_fs->mmp_buf == NULL) { |
| 2327 | retval = ext2fs_get_mem(current_fs->blocksize, |
| 2328 | ¤t_fs->mmp_buf); |
| 2329 | if (retval) { |
| 2330 | com_err(argv[0], retval, "allocating MMP buffer.\n"); |
| 2331 | return; |
| 2332 | } |
| 2333 | } |
| 2334 | |
| 2335 | mmp_s = current_fs->mmp_buf; |
| 2336 | |
| 2337 | retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block, |
| 2338 | current_fs->mmp_buf); |
| 2339 | if (retval) { |
| 2340 | com_err(argv[0], retval, "reading MMP block.\n"); |
| 2341 | return; |
| 2342 | } |
| 2343 | |
| 2344 | t = mmp_s->mmp_time; |
| 2345 | fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block); |
| 2346 | fprintf(stdout, "update_interval: %d\n", |
| 2347 | current_fs->super->s_mmp_update_interval); |
| 2348 | fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval); |
| 2349 | fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq); |
| 2350 | fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t)); |
| 2351 | fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename); |
| 2352 | fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname); |
| 2353 | fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic); |
| 2354 | } |
| 2355 | |
| 2356 | static int source_file(const char *cmd_file, int ss_idx) |
| 2357 | { |
| 2358 | FILE *f; |
| 2359 | char buf[BUFSIZ]; |
| 2360 | char *cp; |
| 2361 | int exit_status = 0; |
| 2362 | int retval; |
| 2363 | |
| 2364 | if (strcmp(cmd_file, "-") == 0) |
| 2365 | f = stdin; |
| 2366 | else { |
| 2367 | f = fopen(cmd_file, "r"); |
| 2368 | if (!f) { |
| 2369 | perror(cmd_file); |
| 2370 | exit(1); |
| 2371 | } |
| 2372 | } |
| 2373 | fflush(stdout); |
| 2374 | fflush(stderr); |
| 2375 | setbuf(stdout, NULL); |
| 2376 | setbuf(stderr, NULL); |
| 2377 | while (!feof(f)) { |
| 2378 | if (fgets(buf, sizeof(buf), f) == NULL) |
| 2379 | break; |
| 2380 | cp = strchr(buf, '\n'); |
| 2381 | if (cp) |
| 2382 | *cp = 0; |
| 2383 | cp = strchr(buf, '\r'); |
| 2384 | if (cp) |
| 2385 | *cp = 0; |
| 2386 | printf("debugfs: %s\n", buf); |
| 2387 | retval = ss_execute_line(ss_idx, buf); |
| 2388 | if (retval) { |
| 2389 | ss_perror(ss_idx, retval, buf); |
| 2390 | exit_status++; |
| 2391 | } |
| 2392 | } |
| 2393 | if (f != stdin) |
| 2394 | fclose(f); |
| 2395 | return exit_status; |
| 2396 | } |
| 2397 | |
| 2398 | int main(int argc, char **argv) |
| 2399 | { |
| 2400 | int retval; |
| 2401 | const char *usage = |
| 2402 | "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] " |
| 2403 | "[-R request] [-V] [" |
| 2404 | #ifndef READ_ONLY |
| 2405 | "[-w] " |
| 2406 | #endif |
| 2407 | "[-c] device]"; |
| 2408 | int c; |
| 2409 | int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS; |
| 2410 | char *request = 0; |
| 2411 | int exit_status = 0; |
| 2412 | char *cmd_file = 0; |
| 2413 | blk64_t superblock = 0; |
| 2414 | blk64_t blocksize = 0; |
| 2415 | int catastrophic = 0; |
| 2416 | char *data_filename = 0; |
| 2417 | #ifdef READ_ONLY |
| 2418 | const char *opt_string = "icR:f:b:s:Vd:D"; |
| 2419 | #else |
| 2420 | const char *opt_string = "iwcR:f:b:s:Vd:D"; |
| 2421 | #endif |
| 2422 | |
| 2423 | if (debug_prog_name == 0) |
| 2424 | #ifdef READ_ONLY |
| 2425 | debug_prog_name = "rdebugfs"; |
| 2426 | #else |
| 2427 | debug_prog_name = "debugfs"; |
| 2428 | #endif |
| 2429 | add_error_table(&et_ext2_error_table); |
| 2430 | fprintf (stderr, "%s %s (%s)\n", debug_prog_name, |
| 2431 | E2FSPROGS_VERSION, E2FSPROGS_DATE); |
| 2432 | |
| 2433 | while ((c = getopt (argc, argv, opt_string)) != EOF) { |
| 2434 | switch (c) { |
| 2435 | case 'R': |
| 2436 | request = optarg; |
| 2437 | break; |
| 2438 | case 'f': |
| 2439 | cmd_file = optarg; |
| 2440 | break; |
| 2441 | case 'd': |
| 2442 | data_filename = optarg; |
| 2443 | break; |
| 2444 | case 'i': |
| 2445 | open_flags |= EXT2_FLAG_IMAGE_FILE; |
| 2446 | break; |
| 2447 | #ifndef READ_ONLY |
| 2448 | case 'w': |
| 2449 | open_flags |= EXT2_FLAG_RW; |
| 2450 | break; |
| 2451 | #endif |
| 2452 | case 'D': |
| 2453 | open_flags |= EXT2_FLAG_DIRECT_IO; |
| 2454 | break; |
| 2455 | case 'b': |
| 2456 | blocksize = parse_ulong(optarg, argv[0], |
| 2457 | "block size", 0); |
| 2458 | break; |
| 2459 | case 's': |
| 2460 | retval = strtoblk(argv[0], optarg, &superblock); |
| 2461 | if (retval) |
| 2462 | return 1; |
| 2463 | break; |
| 2464 | case 'c': |
| 2465 | catastrophic = 1; |
| 2466 | break; |
| 2467 | case 'V': |
| 2468 | /* Print version number and exit */ |
| 2469 | fprintf(stderr, "\tUsing %s\n", |
| 2470 | error_message(EXT2_ET_BASE)); |
| 2471 | exit(0); |
| 2472 | default: |
| 2473 | com_err(argv[0], 0, usage, debug_prog_name); |
| 2474 | return 1; |
| 2475 | } |
| 2476 | } |
| 2477 | if (optind < argc) |
| 2478 | open_filesystem(argv[optind], open_flags, |
| 2479 | superblock, blocksize, catastrophic, |
| 2480 | data_filename); |
| 2481 | |
| 2482 | sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL, |
| 2483 | &debug_cmds, &retval); |
| 2484 | if (retval) { |
| 2485 | ss_perror(sci_idx, retval, "creating invocation"); |
| 2486 | exit(1); |
| 2487 | } |
| 2488 | ss_get_readline(sci_idx); |
| 2489 | |
| 2490 | (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval); |
| 2491 | if (retval) { |
| 2492 | ss_perror(sci_idx, retval, "adding standard requests"); |
| 2493 | exit (1); |
| 2494 | } |
| 2495 | if (extra_cmds) |
| 2496 | ss_add_request_table (sci_idx, extra_cmds, 1, &retval); |
| 2497 | if (retval) { |
| 2498 | ss_perror(sci_idx, retval, "adding extra requests"); |
| 2499 | exit (1); |
| 2500 | } |
| 2501 | if (request) { |
| 2502 | retval = 0; |
| 2503 | retval = ss_execute_line(sci_idx, request); |
| 2504 | if (retval) { |
| 2505 | ss_perror(sci_idx, retval, request); |
| 2506 | exit_status++; |
| 2507 | } |
| 2508 | } else if (cmd_file) { |
| 2509 | exit_status = source_file(cmd_file, sci_idx); |
| 2510 | } else { |
| 2511 | ss_listen(sci_idx); |
| 2512 | } |
| 2513 | |
| 2514 | ss_delete_invocation(sci_idx); |
| 2515 | |
| 2516 | if (current_fs) |
| 2517 | close_filesystem(); |
| 2518 | |
| 2519 | remove_error_table(&et_ext2_error_table); |
| 2520 | return exit_status; |
| 2521 | } |