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[thirdparty/e2fsprogs.git] / debugfs / debugfs.c
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 #include <libgen.h>
19 #include <locale.h>
20 #ifdef HAVE_GETOPT_H
21 #include <getopt.h>
22 #else
23 extern int optind;
24 extern char *optarg;
25 #endif
26 #ifdef HAVE_ERRNO_H
27 #include <errno.h>
28 #endif
29 #include <fcntl.h>
30 #ifdef HAVE_SYS_SYSMACROS_H
31 #include <sys/sysmacros.h>
32 #endif
33
34 #include "debugfs.h"
35 #include "uuid/uuid.h"
36 #include "e2p/e2p.h"
37
38 #include <ext2fs/ext2_ext_attr.h>
39
40 #include "../version.h"
41 #include "jfs_user.h"
42 #include "support/plausible.h"
43
44 #ifndef BUFSIZ
45 #define BUFSIZ 8192
46 #endif
47
48 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
49 int journal_enable_debug = -1;
50 #endif
51
52 /*
53 * There must be only one definition if we're hooking in extra commands or
54 * changing default prompt. Use -DSKIP_GLOBDEF for that.
55 */
56 #ifndef SKIP_GLOBDEFS
57 ss_request_table *extra_cmds;
58 const char *debug_prog_name;
59 #endif
60 int ss_sci_idx;
61
62 ext2_filsys current_fs;
63 quota_ctx_t current_qctx;
64 ext2_ino_t root, cwd;
65
66 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
67 io_manager *io_ptr)
68 {
69 errcode_t retval = ENOMEM;
70 const char *tdb_dir = NULL;
71 char *tdb_file = NULL;
72 char *dev_name, *tmp_name;
73
74 /* (re)open a specific undo file */
75 if (undo_file && undo_file[0] != 0) {
76 retval = set_undo_io_backing_manager(*io_ptr);
77 if (retval)
78 goto err;
79 *io_ptr = undo_io_manager;
80 retval = set_undo_io_backup_file(undo_file);
81 if (retval)
82 goto err;
83 printf("Overwriting existing filesystem; this can be undone "
84 "using the command:\n"
85 " e2undo %s %s\n\n",
86 undo_file, device_name);
87 return retval;
88 }
89
90 /*
91 * Configuration via a conf file would be
92 * nice
93 */
94 tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
95 if (!tdb_dir)
96 tdb_dir = "/var/lib/e2fsprogs";
97
98 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
99 access(tdb_dir, W_OK))
100 return 0;
101
102 tmp_name = strdup(device_name);
103 if (!tmp_name)
104 goto errout;
105 dev_name = basename(tmp_name);
106 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
107 if (!tdb_file) {
108 free(tmp_name);
109 goto errout;
110 }
111 sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
112 free(tmp_name);
113
114 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
115 retval = errno;
116 com_err("debugfs", retval,
117 "while trying to delete %s", tdb_file);
118 goto errout;
119 }
120
121 retval = set_undo_io_backing_manager(*io_ptr);
122 if (retval)
123 goto errout;
124 *io_ptr = undo_io_manager;
125 retval = set_undo_io_backup_file(tdb_file);
126 if (retval)
127 goto errout;
128 printf("Overwriting existing filesystem; this can be undone "
129 "using the command:\n"
130 " e2undo %s %s\n\n", tdb_file, device_name);
131
132 free(tdb_file);
133 return 0;
134 errout:
135 free(tdb_file);
136 err:
137 com_err("debugfs", retval, "while trying to setup undo file\n");
138 return retval;
139 }
140
141 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
142 blk64_t blocksize, int catastrophic,
143 char *data_filename, char *undo_file)
144 {
145 int retval;
146 io_channel data_io = 0;
147 io_manager io_ptr = unix_io_manager;
148
149 if (superblock != 0 && blocksize == 0) {
150 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
151 current_fs = NULL;
152 return;
153 }
154
155 if (data_filename) {
156 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
157 com_err(device, 0,
158 "The -d option is only valid when reading an e2image file");
159 current_fs = NULL;
160 return;
161 }
162 retval = unix_io_manager->open(data_filename, 0, &data_io);
163 if (retval) {
164 com_err(data_filename, 0, "while opening data source");
165 current_fs = NULL;
166 return;
167 }
168 }
169
170 if (catastrophic)
171 open_flags |= EXT2_FLAG_SKIP_MMP | EXT2_FLAG_IGNORE_SB_ERRORS;
172
173 if (undo_file) {
174 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
175 if (retval)
176 exit(1);
177 }
178
179 try_open_again:
180 retval = ext2fs_open(device, open_flags, superblock, blocksize,
181 io_ptr, &current_fs);
182 if (retval && (retval == EXT2_ET_SB_CSUM_INVALID) &&
183 !(open_flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
184 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
185 printf("Checksum errors in superblock! Retrying...\n");
186 goto try_open_again;
187 }
188 if (retval) {
189 com_err(debug_prog_name, retval,
190 "while trying to open %s", device);
191 if (retval == EXT2_ET_BAD_MAGIC)
192 check_plausibility(device, CHECK_FS_EXIST, NULL);
193 current_fs = NULL;
194 return;
195 }
196 current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
197
198 if (!catastrophic) {
199 retval = ext2fs_read_bitmaps(current_fs);
200 if (retval) {
201 com_err(device, retval,
202 "while reading allocation bitmaps");
203 goto errout;
204 }
205 }
206
207 if (data_io) {
208 retval = ext2fs_set_data_io(current_fs, data_io);
209 if (retval) {
210 com_err(device, retval,
211 "while setting data source");
212 goto errout;
213 }
214 }
215
216 root = cwd = EXT2_ROOT_INO;
217 return;
218
219 errout:
220 retval = ext2fs_close_free(&current_fs);
221 if (retval)
222 com_err(device, retval, "while trying to close filesystem");
223 }
224
225 void do_open_filesys(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
226 void *infop EXT2FS_ATTR((unused)))
227 {
228 int c, err;
229 int catastrophic = 0;
230 blk64_t superblock = 0;
231 blk64_t blocksize = 0;
232 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS |
233 EXT2_FLAG_THREADS;
234 char *data_filename = 0;
235 char *undo_file = NULL;
236
237 reset_getopt();
238 while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
239 switch (c) {
240 case 'i':
241 open_flags |= EXT2_FLAG_IMAGE_FILE;
242 break;
243 case 'w':
244 #ifdef READ_ONLY
245 goto print_usage;
246 #else
247 open_flags |= EXT2_FLAG_RW;
248 #endif /* READ_ONLY */
249 break;
250 case 'f':
251 open_flags |= EXT2_FLAG_FORCE;
252 break;
253 case 'e':
254 open_flags |= EXT2_FLAG_EXCLUSIVE;
255 break;
256 case 'c':
257 catastrophic = 1;
258 break;
259 case 'd':
260 data_filename = optarg;
261 break;
262 case 'D':
263 open_flags |= EXT2_FLAG_DIRECT_IO;
264 break;
265 case 'b':
266 blocksize = parse_ulong(optarg, argv[0],
267 "block size", &err);
268 if (err)
269 return;
270 break;
271 case 's':
272 err = strtoblk(argv[0], optarg,
273 "superblock block number", &superblock);
274 if (err)
275 return;
276 break;
277 case 'z':
278 #ifdef READ_ONLY
279 goto print_usage;
280 #else
281 undo_file = optarg;
282 #endif
283 break;
284 default:
285 goto print_usage;
286 }
287 }
288 if (optind != argc-1) {
289 goto print_usage;
290 }
291 if (check_fs_not_open(argv[0]))
292 return;
293 open_filesystem(argv[optind], open_flags,
294 superblock, blocksize, catastrophic,
295 data_filename, undo_file);
296 return;
297
298 print_usage:
299 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
300 #ifdef READ_ONLY
301 "[-d image_filename] [-z undo_file] [-c] [-i] [-f] [-e] [-D] "
302 #else
303 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] [-w] "
304 #endif
305 "<device>\n", argv[0]);
306 }
307
308 void do_lcd(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
309 void *infop EXT2FS_ATTR((unused)))
310 {
311 if (argc != 2) {
312 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
313 return;
314 }
315
316 if (chdir(argv[1]) == -1) {
317 com_err(argv[0], errno,
318 "while trying to change native directory to %s",
319 argv[1]);
320 return;
321 }
322 }
323
324 static void close_filesystem(NOARGS)
325 {
326 int retval;
327
328 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
329 retval = ext2fs_write_inode_bitmap(current_fs);
330 if (retval)
331 com_err("ext2fs_write_inode_bitmap", retval, 0);
332 }
333 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
334 retval = ext2fs_write_block_bitmap(current_fs);
335 if (retval)
336 com_err("ext2fs_write_block_bitmap", retval, 0);
337 }
338 if (current_qctx)
339 quota_release_context(&current_qctx);
340 retval = ext2fs_close_free(&current_fs);
341 if (retval)
342 com_err("ext2fs_close", retval, 0);
343 return;
344 }
345
346 void do_close_filesys(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
347 void *infop EXT2FS_ATTR((unused)))
348 {
349 int c;
350
351 if (check_fs_open(argv[0]))
352 return;
353
354 reset_getopt();
355 while ((c = getopt (argc, argv, "a")) != EOF) {
356 switch (c) {
357 case 'a':
358 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
359 break;
360 default:
361 goto print_usage;
362 }
363 }
364
365 if (argc > optind) {
366 print_usage:
367 com_err(0, 0, "Usage: close_filesys [-a]");
368 return;
369 }
370
371 close_filesystem();
372 }
373
374 #ifndef READ_ONLY
375 void do_init_filesys(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
376 void *infop EXT2FS_ATTR((unused)))
377 {
378 struct ext2_super_block param;
379 errcode_t retval;
380 int err;
381 blk64_t blocks;
382
383 if (common_args_process(argc, argv, 3, 3, "initialize",
384 "<device> <blocks>", CHECK_FS_NOTOPEN))
385 return;
386
387 memset(&param, 0, sizeof(struct ext2_super_block));
388 err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
389 if (err)
390 return;
391 ext2fs_blocks_count_set(&param, blocks);
392 retval = ext2fs_initialize(argv[1], 0, &param,
393 unix_io_manager, &current_fs);
394 if (retval) {
395 com_err(argv[1], retval, "while initializing filesystem");
396 current_fs = NULL;
397 return;
398 }
399 root = cwd = EXT2_ROOT_INO;
400 return;
401 }
402
403 static void print_features(struct ext2_super_block * s, FILE *f)
404 {
405 int i, j, printed=0;
406 __u32 *mask = &s->s_feature_compat, m;
407
408 fputs("Filesystem features:", f);
409 for (i=0; i <3; i++,mask++) {
410 for (j=0,m=1; j < 32; j++, m<<=1) {
411 if (*mask & m) {
412 fprintf(f, " %s", e2p_feature2string(i, m));
413 printed++;
414 }
415 }
416 }
417 if (printed == 0)
418 fputs("(none)", f);
419 fputs("\n", f);
420 }
421 #endif /* READ_ONLY */
422
423 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
424 const char *str, int *first, FILE *f)
425 {
426 if (ext2fs_bg_flags_test(fs, group, mask)) {
427 if (*first) {
428 fputs(" [", f);
429 *first = 0;
430 } else
431 fputs(", ", f);
432 fputs(str, f);
433 }
434 }
435
436 void do_show_super_stats(int argc, ss_argv_t argv,
437 int sci_idx EXT2FS_ATTR((unused)),
438 void *infop EXT2FS_ATTR((unused)))
439 {
440 const char *units ="block";
441 dgrp_t i;
442 FILE *out;
443 int c, header_only = 0;
444 int numdirs = 0, first, gdt_csum;
445
446 reset_getopt();
447 while ((c = getopt (argc, argv, "h")) != EOF) {
448 switch (c) {
449 case 'h':
450 header_only++;
451 break;
452 default:
453 goto print_usage;
454 }
455 }
456 if (optind != argc) {
457 goto print_usage;
458 }
459 if (check_fs_open(argv[0]))
460 return;
461 out = open_pager();
462
463 if (ext2fs_has_feature_bigalloc(current_fs->super))
464 units = "cluster";
465
466 list_super2(current_fs->super, out);
467 if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
468 !ext2fs_superblock_csum_verify(current_fs,
469 current_fs->super)) {
470 __u32 orig_csum = current_fs->super->s_checksum;
471
472 ext2fs_superblock_csum_set(current_fs,
473 current_fs->super);
474 fprintf(out, "Expected Checksum: 0x%08x\n",
475 current_fs->super->s_checksum);
476 current_fs->super->s_checksum = orig_csum;
477 }
478 for (i=0; i < current_fs->group_desc_count; i++)
479 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
480 fprintf(out, "Directories: %u\n", numdirs);
481
482 if (header_only) {
483 close_pager(out);
484 return;
485 }
486
487 gdt_csum = ext2fs_has_group_desc_csum(current_fs);
488 for (i = 0; i < current_fs->group_desc_count; i++) {
489 fprintf(out, " Group %2d: block bitmap at %llu, "
490 "inode bitmap at %llu, "
491 "inode table at %llu\n"
492 " %u free %s%s, "
493 "%u free %s, "
494 "%u used %s%s", i,
495 (unsigned long long) ext2fs_block_bitmap_loc(current_fs, i),
496 (unsigned long long) ext2fs_inode_bitmap_loc(current_fs, i),
497 (unsigned long long) ext2fs_inode_table_loc(current_fs, i),
498 ext2fs_bg_free_blocks_count(current_fs, i),
499 units,
500 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
501 "s" : "",
502 ext2fs_bg_free_inodes_count(current_fs, i),
503 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
504 "inodes" : "inode",
505 ext2fs_bg_used_dirs_count(current_fs, i),
506 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
507 : "directory", gdt_csum ? ", " : "\n");
508 if (gdt_csum)
509 fprintf(out, "%u unused %s\n",
510 ext2fs_bg_itable_unused(current_fs, i),
511 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
512 "inodes" : "inode");
513 first = 1;
514 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
515 &first, out);
516 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
517 &first, out);
518 if (gdt_csum) {
519 fprintf(out, "%sChecksum 0x%04x",
520 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
521 first = 0;
522 }
523 if (!first)
524 fputs("]\n", out);
525 }
526 close_pager(out);
527 return;
528 print_usage:
529 fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
530 }
531
532 #ifndef READ_ONLY
533 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
534 ss_argv_t argv EXT2FS_ATTR((unused)),
535 int sci_idx EXT2FS_ATTR((unused)),
536 void *infop EXT2FS_ATTR((unused)))
537 {
538 if (check_fs_open(argv[0]))
539 return;
540 if (check_fs_read_write(argv[0]))
541 return;
542
543 if (argv[1] && !strcmp(argv[1], "-clean"))
544 current_fs->super->s_state |= EXT2_VALID_FS;
545 else
546 current_fs->super->s_state &= ~EXT2_VALID_FS;
547 ext2fs_mark_super_dirty(current_fs);
548 }
549 #endif /* READ_ONLY */
550
551 struct list_blocks_struct {
552 FILE *f;
553 e2_blkcnt_t total;
554 blk64_t first_block, last_block;
555 e2_blkcnt_t first_bcnt, last_bcnt;
556 e2_blkcnt_t first;
557 };
558
559 static void finish_range(struct list_blocks_struct *lb)
560 {
561 if (lb->first_block == 0)
562 return;
563 if (lb->first)
564 lb->first = 0;
565 else
566 fprintf(lb->f, ", ");
567 if (lb->first_block == lb->last_block)
568 fprintf(lb->f, "(%lld):%llu",
569 (long long)lb->first_bcnt,
570 (unsigned long long) lb->first_block);
571 else
572 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
573 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
574 (unsigned long long) lb->first_block,
575 (unsigned long long) lb->last_block);
576 lb->first_block = 0;
577 }
578
579 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
580 blk64_t *blocknr, e2_blkcnt_t blockcnt,
581 blk64_t ref_block EXT2FS_ATTR((unused)),
582 int ref_offset EXT2FS_ATTR((unused)),
583 void *private)
584 {
585 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
586
587 lb->total++;
588 if (blockcnt >= 0) {
589 /*
590 * See if we can add on to the existing range (if it exists)
591 */
592 if (lb->first_block &&
593 (lb->last_block+1 == *blocknr) &&
594 (lb->last_bcnt+1 == blockcnt)) {
595 lb->last_block = *blocknr;
596 lb->last_bcnt = blockcnt;
597 return 0;
598 }
599 /*
600 * Start a new range.
601 */
602 finish_range(lb);
603 lb->first_block = lb->last_block = *blocknr;
604 lb->first_bcnt = lb->last_bcnt = blockcnt;
605 return 0;
606 }
607 /*
608 * Not a normal block. Always force a new range.
609 */
610 finish_range(lb);
611 if (lb->first)
612 lb->first = 0;
613 else
614 fprintf(lb->f, ", ");
615 if (blockcnt == -1)
616 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
617 else if (blockcnt == -2)
618 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
619 else if (blockcnt == -3)
620 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
621 return 0;
622 }
623
624 static void internal_dump_inode_extra(FILE *out,
625 const char *prefix EXT2FS_ATTR((unused)),
626 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
627 struct ext2_inode_large *inode)
628 {
629 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
630 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
631 EXT2_GOOD_OLD_INODE_SIZE) {
632 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
633 inode->i_extra_isize);
634 return;
635 }
636 }
637
638 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
639 {
640 struct list_blocks_struct lb;
641
642 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
643 lb.total = 0;
644 lb.first_block = 0;
645 lb.f = f;
646 lb.first = 1;
647 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
648 list_blocks_proc, (void *)&lb);
649 finish_range(&lb);
650 if (lb.total)
651 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
652 fprintf(f,"\n");
653 }
654
655 #define DUMP_LEAF_EXTENTS 0x01
656 #define DUMP_NODE_EXTENTS 0x02
657 #define DUMP_EXTENT_TABLE 0x04
658
659 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
660 int flags, int logical_width, int physical_width)
661 {
662 ext2_extent_handle_t handle;
663 struct ext2fs_extent extent;
664 struct ext2_extent_info info;
665 int op = EXT2_EXTENT_ROOT;
666 unsigned int printed = 0;
667 errcode_t errcode;
668
669 errcode = ext2fs_extent_open(current_fs, ino, &handle);
670 if (errcode)
671 return;
672
673 if (flags & DUMP_EXTENT_TABLE)
674 fprintf(f, "Level Entries %*s %*s Length Flags\n",
675 (logical_width*2)+3, "Logical",
676 (physical_width*2)+3, "Physical");
677 else
678 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
679
680 while (1) {
681 errcode = ext2fs_extent_get(handle, op, &extent);
682
683 if (errcode)
684 break;
685
686 op = EXT2_EXTENT_NEXT;
687
688 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
689 continue;
690
691 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
692 if ((flags & DUMP_LEAF_EXTENTS) == 0)
693 continue;
694 } else {
695 if ((flags & DUMP_NODE_EXTENTS) == 0)
696 continue;
697 }
698
699 errcode = ext2fs_extent_get_info(handle, &info);
700 if (errcode)
701 continue;
702
703 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
704 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
705 continue;
706
707 if (flags & DUMP_EXTENT_TABLE) {
708 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
709 "%*llu%*s %6u\n",
710 info.curr_level, info.max_depth,
711 info.curr_entry, info.num_entries,
712 logical_width,
713 (unsigned long long) extent.e_lblk,
714 logical_width,
715 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
716 physical_width,
717 (unsigned long long) extent.e_pblk,
718 physical_width+3, "", extent.e_len);
719 continue;
720 }
721
722 fprintf(f, "%s(ETB%d):%llu",
723 printed ? ", " : "", info.curr_level,
724 (unsigned long long) extent.e_pblk);
725 printed = 1;
726 continue;
727 }
728
729 if (flags & DUMP_EXTENT_TABLE) {
730 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
731 "%*llu - %*llu %6u %s\n",
732 info.curr_level, info.max_depth,
733 info.curr_entry, info.num_entries,
734 logical_width,
735 (unsigned long long) extent.e_lblk,
736 logical_width,
737 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
738 physical_width,
739 (unsigned long long) extent.e_pblk,
740 physical_width,
741 (unsigned long long) extent.e_pblk + (extent.e_len - 1),
742 extent.e_len,
743 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
744 "Uninit" : "");
745 continue;
746 }
747
748 if (extent.e_len == 0)
749 continue;
750 else if (extent.e_len == 1)
751 fprintf(f,
752 "%s(%lld%s):%lld",
753 printed ? ", " : "",
754 (unsigned long long) extent.e_lblk,
755 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
756 "[u]" : "",
757 (unsigned long long) extent.e_pblk);
758 else
759 fprintf(f,
760 "%s(%lld-%lld%s):%lld-%lld",
761 printed ? ", " : "",
762 (unsigned long long) extent.e_lblk,
763 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
764 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
765 "[u]" : "",
766 (unsigned long long) extent.e_pblk,
767 (unsigned long long) extent.e_pblk + (extent.e_len - 1));
768 printed = 1;
769 }
770 if (printed)
771 fprintf(f, "\n");
772 ext2fs_extent_free(handle);
773 }
774
775 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
776 {
777 errcode_t retval;
778 size_t size;
779
780 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
781 if (!retval)
782 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
783 }
784
785 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
786 struct ext2_inode *inode, const char *prefix)
787 {
788 errcode_t retval;
789 char *buf = NULL;
790 size_t size;
791
792 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
793 if (retval)
794 goto out;
795
796 retval = ext2fs_get_memzero(size + 1, &buf);
797 if (retval)
798 goto out;
799
800 retval = ext2fs_inline_data_get(current_fs, inode_num,
801 inode, buf, &size);
802 if (retval)
803 goto out;
804
805 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
806 (int)size, buf);
807 out:
808 if (buf)
809 ext2fs_free_mem(&buf);
810 if (retval)
811 com_err(__func__, retval, "while dumping link destination");
812 }
813
814 void internal_dump_inode(FILE *out, const char *prefix,
815 ext2_ino_t inode_num, struct ext2_inode *inode,
816 int do_dump_blocks)
817 {
818 const char *i_type;
819 char frag, fsize;
820 int os = current_fs->super->s_creator_os;
821 struct ext2_inode_large *large_inode;
822 size_t inode_size;
823
824 large_inode = (struct ext2_inode_large *) inode;
825 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
826 inode_size = ext2fs_inode_actual_size(large_inode);
827 else
828 inode_size = EXT2_GOOD_OLD_INODE_SIZE;
829
830 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
831 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
832 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
833 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
834 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
835 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
836 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
837 else i_type = "bad type";
838 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
839 fprintf(out, "%sMode: 0%03o Flags: 0x%x\n",
840 prefix, inode->i_mode & 07777, inode->i_flags);
841 if (ext2fs_inode_includes(inode_size, i_version_hi)) {
842 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
843 prefix, inode->i_generation, large_inode->i_version_hi,
844 inode->osd1.linux1.l_i_version);
845 } else {
846 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
847 inode->i_generation, inode->osd1.linux1.l_i_version);
848 }
849 fprintf(out, "%sUser: %5d Group: %5d",
850 prefix, inode_uid(*inode), inode_gid(*inode));
851 if (ext2fs_inode_includes(inode_size, i_projid))
852 fprintf(out, " Project: %5d", large_inode->i_projid);
853 fputs(" Size: ", out);
854 if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
855 fprintf(out, "%llu\n", (unsigned long long) EXT2_I_SIZE(inode));
856 else
857 fprintf(out, "%u\n", inode->i_size);
858 if (os == EXT2_OS_HURD)
859 fprintf(out,
860 "%sFile ACL: %u Translator: %u\n",
861 prefix,
862 inode->i_file_acl,
863 inode->osd1.hurd1.h_i_translator);
864 else
865 fprintf(out, "%sFile ACL: %llu\n",
866 prefix,
867 inode->i_file_acl | ((long long)
868 (inode->osd2.linux2.l_i_file_acl_high) << 32));
869 if (os != EXT2_OS_HURD)
870 fprintf(out, "%sLinks: %u Blockcount: %llu\n",
871 prefix, inode->i_links_count,
872 (((unsigned long long)
873 inode->osd2.linux2.l_i_blocks_hi << 32)) +
874 inode->i_blocks);
875 else
876 fprintf(out, "%sLinks: %u Blockcount: %u\n",
877 prefix, inode->i_links_count, inode->i_blocks);
878 switch (os) {
879 case EXT2_OS_HURD:
880 frag = inode->osd2.hurd2.h_i_frag;
881 fsize = inode->osd2.hurd2.h_i_fsize;
882 break;
883 default:
884 frag = fsize = 0;
885 }
886 fprintf(out, "%sFragment: Address: %u Number: %u Size: %u\n",
887 prefix, inode->i_faddr, frag, fsize);
888 if (ext2fs_inode_includes(inode_size, i_ctime_extra))
889 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
890 inode->i_ctime, large_inode->i_ctime_extra,
891 time_to_string(ext2fs_inode_xtime_get(large_inode,
892 i_ctime)));
893 else
894 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
895 time_to_string((__s32) inode->i_ctime));
896 if (ext2fs_inode_includes(inode_size, i_atime_extra))
897 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
898 inode->i_atime, large_inode->i_atime_extra,
899 time_to_string(ext2fs_inode_xtime_get(large_inode,
900 i_atime)));
901 else
902 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
903 time_to_string((__s32) inode->i_atime));
904 if (ext2fs_inode_includes(inode_size, i_mtime_extra))
905 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
906 inode->i_mtime, large_inode->i_mtime_extra,
907 time_to_string(ext2fs_inode_xtime_get(large_inode,
908 i_mtime)));
909 else
910 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
911 time_to_string((__s32) inode->i_mtime));
912 if (ext2fs_inode_includes(inode_size, i_crtime_extra))
913 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
914 large_inode->i_crtime, large_inode->i_crtime_extra,
915 time_to_string(ext2fs_inode_xtime_get(large_inode,
916 i_crtime)));
917 if (inode->i_dtime) {
918 if (ext2fs_inode_includes(inode_size, i_ctime_extra)) {
919 time_t tm;
920
921 /* dtime doesn't have its own i_dtime_extra field, so
922 * approximate this with i_ctime_extra instead. */
923 tm = __decode_extra_sec(inode->i_dtime,
924 large_inode->i_ctime_extra);
925 fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
926 inode->i_dtime, large_inode->i_ctime_extra,
927 time_to_string(tm));
928 } else {
929 fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
930 inode->i_dtime,
931 time_to_string((__s32) inode->i_dtime));
932 }
933 }
934 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
935 internal_dump_inode_extra(out, prefix, inode_num,
936 (struct ext2_inode_large *) inode);
937 dump_inode_attributes(out, inode_num);
938 if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
939 __u32 crc = inode->i_checksum_lo;
940 if (ext2fs_inode_includes(inode_size, i_checksum_hi))
941 crc |= ((__u32)large_inode->i_checksum_hi) << 16;
942 fprintf(out, "Inode checksum: 0x%08x\n", crc);
943 }
944
945 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
946 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
947 (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
948 else if (LINUX_S_ISLNK(inode->i_mode) &&
949 (inode->i_flags & EXT4_INLINE_DATA_FL))
950 dump_inline_symlink(out, inode_num, inode, prefix);
951 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
952 int major, minor;
953 const char *devnote;
954
955 if (inode->i_block[0]) {
956 major = (inode->i_block[0] >> 8) & 255;
957 minor = inode->i_block[0] & 255;
958 devnote = "";
959 } else {
960 major = (inode->i_block[1] & 0xfff00) >> 8;
961 minor = ((inode->i_block[1] & 0xff) |
962 ((inode->i_block[1] >> 12) & 0xfff00));
963 devnote = "(New-style) ";
964 }
965 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
966 devnote, major, minor, major, minor);
967 } else if (do_dump_blocks) {
968 if (inode->i_flags & EXT4_EXTENTS_FL)
969 dump_extents(out, prefix, inode_num,
970 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
971 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
972 dump_inline_data(out, prefix, inode_num);
973 else
974 dump_blocks(out, prefix, inode_num);
975 }
976 }
977
978 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
979 {
980 FILE *out;
981
982 out = open_pager();
983 internal_dump_inode(out, "", inode_num, inode, 1);
984 close_pager(out);
985 }
986
987 void do_stat(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
988 void *infop EXT2FS_ATTR((unused)))
989 {
990 ext2_ino_t inode;
991 struct ext2_inode * inode_buf;
992
993 if (check_fs_open(argv[0]))
994 return;
995
996 inode_buf = (struct ext2_inode *)
997 malloc(EXT2_INODE_SIZE(current_fs->super));
998 if (!inode_buf) {
999 fprintf(stderr, "do_stat: can't allocate buffer\n");
1000 return;
1001 }
1002
1003 if (common_inode_args_process(argc, argv, &inode, 0)) {
1004 free(inode_buf);
1005 return;
1006 }
1007
1008 if (debugfs_read_inode2(inode, inode_buf, argv[0],
1009 EXT2_INODE_SIZE(current_fs->super), 0)) {
1010 free(inode_buf);
1011 return;
1012 }
1013
1014 dump_inode(inode, inode_buf);
1015 free(inode_buf);
1016 return;
1017 }
1018
1019 void do_dump_extents(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1020 void *infop EXT2FS_ATTR((unused)))
1021 {
1022 struct ext2_inode inode;
1023 ext2_ino_t ino;
1024 FILE *out;
1025 int c, flags = 0;
1026 int logical_width;
1027 int physical_width;
1028
1029 reset_getopt();
1030 while ((c = getopt(argc, argv, "nl")) != EOF) {
1031 switch (c) {
1032 case 'n':
1033 flags |= DUMP_NODE_EXTENTS;
1034 break;
1035 case 'l':
1036 flags |= DUMP_LEAF_EXTENTS;
1037 break;
1038 }
1039 }
1040
1041 if (argc != optind + 1) {
1042 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1043 return;
1044 }
1045
1046 if (flags == 0)
1047 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1048 flags |= DUMP_EXTENT_TABLE;
1049
1050 if (check_fs_open(argv[0]))
1051 return;
1052
1053 ino = string_to_inode(argv[optind]);
1054 if (ino == 0)
1055 return;
1056
1057 if (debugfs_read_inode(ino, &inode, argv[0]))
1058 return;
1059
1060 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1061 fprintf(stderr, "%s: does not uses extent block maps\n",
1062 argv[optind]);
1063 return;
1064 }
1065
1066 logical_width = ext2fs_log10_u32((EXT2_I_SIZE(&inode) +
1067 current_fs->blocksize - 1) /
1068 current_fs->blocksize) + 1;
1069 if (logical_width < 5)
1070 logical_width = 5;
1071 physical_width = ext2fs_log10_u64(ext2fs_blocks_count(current_fs->super)) + 1;
1072 if (physical_width < 5)
1073 physical_width = 5;
1074
1075 out = open_pager();
1076 dump_extents(out, "", ino, flags, logical_width, physical_width);
1077 close_pager(out);
1078 return;
1079 }
1080
1081 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1082 blk64_t *blocknr,
1083 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1084 blk64_t ref_block EXT2FS_ATTR((unused)),
1085 int ref_offset EXT2FS_ATTR((unused)),
1086 void *private EXT2FS_ATTR((unused)))
1087 {
1088 printf("%llu ", (unsigned long long) *blocknr);
1089 return 0;
1090 }
1091
1092 void do_blocks(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1093 void *infop EXT2FS_ATTR((unused)))
1094 {
1095 ext2_ino_t inode;
1096
1097 if (check_fs_open(argv[0]))
1098 return;
1099
1100 if (common_inode_args_process(argc, argv, &inode, 0)) {
1101 return;
1102 }
1103
1104 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1105 print_blocks_proc, NULL);
1106 fputc('\n', stdout);
1107 return;
1108 }
1109
1110 void do_chroot(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1111 void *infop EXT2FS_ATTR((unused)))
1112 {
1113 ext2_ino_t inode;
1114 int retval;
1115
1116 if (common_inode_args_process(argc, argv, &inode, 0))
1117 return;
1118
1119 retval = ext2fs_check_directory(current_fs, inode);
1120 if (retval) {
1121 com_err(argv[1], retval, 0);
1122 return;
1123 }
1124 root = inode;
1125 }
1126
1127 #ifndef READ_ONLY
1128 void do_clri(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1129 void *infop EXT2FS_ATTR((unused)))
1130 {
1131 ext2_ino_t inode;
1132 struct ext2_inode inode_buf;
1133
1134 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1135 return;
1136
1137 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1138 return;
1139 memset(&inode_buf, 0, sizeof(inode_buf));
1140 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1141 return;
1142 }
1143
1144 void do_freei(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1145 void *infop EXT2FS_ATTR((unused)))
1146 {
1147 unsigned int len = 1;
1148 int err = 0;
1149 ext2_ino_t inode;
1150
1151 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1152 CHECK_FS_RW | CHECK_FS_BITMAPS))
1153 return;
1154 if (check_fs_read_write(argv[0]))
1155 return;
1156
1157 inode = string_to_inode(argv[1]);
1158 if (!inode)
1159 return;
1160
1161 if (argc == 3) {
1162 len = parse_ulong(argv[2], argv[0], "length", &err);
1163 if (err)
1164 return;
1165 }
1166
1167 if (len == 1 &&
1168 !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1169 com_err(argv[0], 0, "Warning: inode already clear");
1170 while (len-- > 0)
1171 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1172 ext2fs_mark_ib_dirty(current_fs);
1173 }
1174
1175 void do_seti(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1176 void *infop EXT2FS_ATTR((unused)))
1177 {
1178 unsigned int len = 1;
1179 int err = 0;
1180 ext2_ino_t inode;
1181
1182 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1183 CHECK_FS_RW | CHECK_FS_BITMAPS))
1184 return;
1185 if (check_fs_read_write(argv[0]))
1186 return;
1187
1188 inode = string_to_inode(argv[1]);
1189 if (!inode)
1190 return;
1191
1192 if (argc == 3) {
1193 len = parse_ulong(argv[2], argv[0], "length", &err);
1194 if (err)
1195 return;
1196 }
1197
1198 if ((len == 1) &&
1199 ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1200 com_err(argv[0], 0, "Warning: inode already set");
1201 while (len-- > 0)
1202 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1203 ext2fs_mark_ib_dirty(current_fs);
1204 }
1205 #endif /* READ_ONLY */
1206
1207 void do_testi(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1208 void *infop EXT2FS_ATTR((unused)))
1209 {
1210 ext2_ino_t inode;
1211
1212 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1213 return;
1214
1215 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1216 printf("Inode %u is marked in use\n", inode);
1217 else
1218 printf("Inode %u is not in use\n", inode);
1219 }
1220
1221 #ifndef READ_ONLY
1222 void do_freeb(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1223 void *infop EXT2FS_ATTR((unused)))
1224 {
1225 blk64_t block;
1226 blk64_t count = 1;
1227
1228 if (common_block_args_process(argc, argv, &block, &count))
1229 return;
1230 if (check_fs_read_write(argv[0]))
1231 return;
1232 while (count-- > 0) {
1233 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1234 com_err(argv[0], 0, "Warning: block %llu already clear",
1235 (unsigned long long) block);
1236 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1237 block++;
1238 }
1239 ext2fs_mark_bb_dirty(current_fs);
1240 }
1241
1242 void do_setb(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1243 void *infop EXT2FS_ATTR((unused)))
1244 {
1245 blk64_t block;
1246 blk64_t count = 1;
1247
1248 if (common_block_args_process(argc, argv, &block, &count))
1249 return;
1250 if (check_fs_read_write(argv[0]))
1251 return;
1252 while (count-- > 0) {
1253 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1254 com_err(argv[0], 0, "Warning: block %llu already set",
1255 (unsigned long long) block);
1256 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1257 block++;
1258 }
1259 ext2fs_mark_bb_dirty(current_fs);
1260 }
1261 #endif /* READ_ONLY */
1262
1263 void do_testb(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1264 void *infop EXT2FS_ATTR((unused)))
1265 {
1266 blk64_t block;
1267 blk64_t count = 1;
1268
1269 if (common_block_args_process(argc, argv, &block, &count))
1270 return;
1271 while (count-- > 0) {
1272 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1273 printf("Block %llu marked in use\n",
1274 (unsigned long long) block);
1275 else
1276 printf("Block %llu not in use\n",
1277 (unsigned long long) block);
1278 block++;
1279 }
1280 }
1281
1282 #ifndef READ_ONLY
1283 static void modify_u8(char *com, const char *prompt,
1284 const char *format, __u8 *val)
1285 {
1286 char buf[200];
1287 unsigned long v;
1288 char *tmp;
1289
1290 sprintf(buf, format, *val);
1291 printf("%30s [%s] ", prompt, buf);
1292 if (!fgets(buf, sizeof(buf), stdin))
1293 return;
1294 if (buf[strlen (buf) - 1] == '\n')
1295 buf[strlen (buf) - 1] = '\0';
1296 if (!buf[0])
1297 return;
1298 v = strtoul(buf, &tmp, 0);
1299 if (*tmp)
1300 com_err(com, 0, "Bad value - %s", buf);
1301 else
1302 *val = v;
1303 }
1304
1305 static void modify_u16(char *com, const char *prompt,
1306 const char *format, __u16 *val)
1307 {
1308 char buf[200];
1309 unsigned long v;
1310 char *tmp;
1311
1312 sprintf(buf, format, *val);
1313 printf("%30s [%s] ", prompt, buf);
1314 if (!fgets(buf, sizeof(buf), stdin))
1315 return;
1316 if (buf[strlen (buf) - 1] == '\n')
1317 buf[strlen (buf) - 1] = '\0';
1318 if (!buf[0])
1319 return;
1320 v = strtoul(buf, &tmp, 0);
1321 if (*tmp)
1322 com_err(com, 0, "Bad value - %s", buf);
1323 else
1324 *val = v;
1325 }
1326
1327 static void modify_u32(char *com, const char *prompt,
1328 const char *format, __u32 *val)
1329 {
1330 char buf[200];
1331 unsigned long v;
1332 char *tmp;
1333
1334 sprintf(buf, format, *val);
1335 printf("%30s [%s] ", prompt, buf);
1336 if (!fgets(buf, sizeof(buf), stdin))
1337 return;
1338 if (buf[strlen (buf) - 1] == '\n')
1339 buf[strlen (buf) - 1] = '\0';
1340 if (!buf[0])
1341 return;
1342 v = strtoul(buf, &tmp, 0);
1343 if (*tmp)
1344 com_err(com, 0, "Bad value - %s", buf);
1345 else
1346 *val = v;
1347 }
1348
1349
1350 void do_modify_inode(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1351 void *infop EXT2FS_ATTR((unused)))
1352 {
1353 struct ext2_inode inode;
1354 ext2_ino_t inode_num;
1355 int i;
1356 unsigned char *frag, *fsize;
1357 char buf[80];
1358 int os;
1359 const char *hex_format = "0x%x";
1360 const char *octal_format = "0%o";
1361 const char *decimal_format = "%d";
1362 const char *unsignedlong_format = "%lu";
1363
1364 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1365 return;
1366
1367 os = current_fs->super->s_creator_os;
1368
1369 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1370 return;
1371
1372 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1373 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1374 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1375 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1376 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1377 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1378 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1379 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1380 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1381 if (os == EXT2_OS_LINUX)
1382 modify_u16(argv[0], "Block count high", unsignedlong_format,
1383 &inode.osd2.linux2.l_i_blocks_hi);
1384 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1385 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1386 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1387 #if 0
1388 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1389 #endif
1390 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1391
1392 modify_u32(argv[0], "High 32bits of size", decimal_format,
1393 &inode.i_size_high);
1394
1395 if (os == EXT2_OS_HURD)
1396 modify_u32(argv[0], "Translator Block",
1397 decimal_format, &inode.osd1.hurd1.h_i_translator);
1398
1399 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1400 switch (os) {
1401 case EXT2_OS_HURD:
1402 frag = &inode.osd2.hurd2.h_i_frag;
1403 fsize = &inode.osd2.hurd2.h_i_fsize;
1404 break;
1405 default:
1406 frag = fsize = 0;
1407 }
1408 if (frag)
1409 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1410 if (fsize)
1411 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1412
1413 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1414 sprintf(buf, "Direct Block #%u", i);
1415 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1416 }
1417 modify_u32(argv[0], "Indirect Block", decimal_format,
1418 &inode.i_block[EXT2_IND_BLOCK]);
1419 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1420 &inode.i_block[EXT2_DIND_BLOCK]);
1421 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1422 &inode.i_block[EXT2_TIND_BLOCK]);
1423 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1424 return;
1425 }
1426 #endif /* READ_ONLY */
1427
1428 void do_change_working_dir(int argc, ss_argv_t argv,
1429 int sci_idx EXT2FS_ATTR((unused)),
1430 void *infop EXT2FS_ATTR((unused)))
1431 {
1432 ext2_ino_t inode;
1433 int retval;
1434
1435 if (common_inode_args_process(argc, argv, &inode, 0))
1436 return;
1437
1438 retval = ext2fs_check_directory(current_fs, inode);
1439 if (retval) {
1440 com_err(argv[1], retval, 0);
1441 return;
1442 }
1443 cwd = inode;
1444 return;
1445 }
1446
1447 void do_print_working_directory(int argc, ss_argv_t argv,
1448 int sci_idx EXT2FS_ATTR((unused)),
1449 void *infop EXT2FS_ATTR((unused)))
1450 {
1451 int retval;
1452 char *pathname = NULL;
1453
1454 if (common_args_process(argc, argv, 1, 1,
1455 "print_working_directory", "", 0))
1456 return;
1457
1458 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1459 if (retval) {
1460 com_err(argv[0], retval,
1461 "while trying to get pathname of cwd");
1462 }
1463 printf("[pwd] INODE: %6u PATH: %s\n",
1464 cwd, pathname ? pathname : "NULL");
1465 if (pathname) {
1466 free(pathname);
1467 pathname = NULL;
1468 }
1469 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1470 if (retval) {
1471 com_err(argv[0], retval,
1472 "while trying to get pathname of root");
1473 }
1474 printf("[root] INODE: %6u PATH: %s\n",
1475 root, pathname ? pathname : "NULL");
1476 if (pathname) {
1477 free(pathname);
1478 pathname = NULL;
1479 }
1480 return;
1481 }
1482
1483 #ifndef READ_ONLY
1484 static void make_link(char *sourcename, char *destname)
1485 {
1486 ext2_ino_t ino;
1487 struct ext2_inode inode;
1488 int retval;
1489 ext2_ino_t dir;
1490 char *dest, *cp, *base_name;
1491
1492 /*
1493 * Get the source inode
1494 */
1495 ino = string_to_inode(sourcename);
1496 if (!ino)
1497 return;
1498 base_name = strrchr(sourcename, '/');
1499 if (base_name)
1500 base_name++;
1501 else
1502 base_name = sourcename;
1503 /*
1504 * Figure out the destination. First see if it exists and is
1505 * a directory.
1506 */
1507 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1508 dest = base_name;
1509 else {
1510 /*
1511 * OK, it doesn't exist. See if it is
1512 * '<dir>/basename' or 'basename'
1513 */
1514 cp = strrchr(destname, '/');
1515 if (cp) {
1516 *cp = 0;
1517 dir = string_to_inode(destname);
1518 if (!dir)
1519 return;
1520 dest = cp+1;
1521 } else {
1522 dir = cwd;
1523 dest = destname;
1524 }
1525 }
1526
1527 if (debugfs_read_inode(ino, &inode, sourcename))
1528 return;
1529
1530 retval = ext2fs_link(current_fs, dir, dest, ino,
1531 ext2_file_type(inode.i_mode));
1532 if (retval)
1533 com_err("make_link", retval, 0);
1534 return;
1535 }
1536
1537
1538 void do_link(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1539 void *infop EXT2FS_ATTR((unused)))
1540 {
1541 if (common_args_process(argc, argv, 3, 3, "link",
1542 "<source file> <dest_name>", CHECK_FS_RW))
1543 return;
1544
1545 make_link(argv[1], argv[2]);
1546 }
1547
1548 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1549 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1550 blk64_t ref_block EXT2FS_ATTR((unused)),
1551 int ref_offset EXT2FS_ATTR((unused)),
1552 void *private EXT2FS_ATTR((unused)))
1553 {
1554 blk64_t block;
1555
1556 block = *blocknr;
1557 ext2fs_block_alloc_stats2(fs, block, +1);
1558 return 0;
1559 }
1560
1561 void do_undel(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1562 void *infop EXT2FS_ATTR((unused)))
1563 {
1564 ext2_ino_t ino;
1565 struct ext2_inode inode;
1566
1567 if (common_args_process(argc, argv, 2, 3, "undelete",
1568 "<inode_num> [dest_name]",
1569 CHECK_FS_RW | CHECK_FS_BITMAPS))
1570 return;
1571
1572 ino = string_to_inode(argv[1]);
1573 if (!ino)
1574 return;
1575
1576 if (debugfs_read_inode(ino, &inode, argv[1]))
1577 return;
1578
1579 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1580 com_err(argv[1], 0, "Inode is not marked as deleted");
1581 return;
1582 }
1583
1584 /*
1585 * XXX this function doesn't handle changing the links count on the
1586 * parent directory when undeleting a directory.
1587 */
1588 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1589 inode.i_dtime = 0;
1590
1591 if (debugfs_write_inode(ino, &inode, argv[0]))
1592 return;
1593
1594 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1595 mark_blocks_proc, NULL);
1596
1597 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1598
1599 if (argc > 2)
1600 make_link(argv[1], argv[2]);
1601 }
1602
1603 static void unlink_file_by_name(char *filename)
1604 {
1605 int retval;
1606 ext2_ino_t dir;
1607 char *base_name;
1608
1609 base_name = strrchr(filename, '/');
1610 if (base_name) {
1611 *base_name++ = '\0';
1612 dir = string_to_inode(filename);
1613 if (!dir)
1614 return;
1615 } else {
1616 dir = cwd;
1617 base_name = filename;
1618 }
1619 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1620 if (retval)
1621 com_err("unlink_file_by_name", retval, 0);
1622 return;
1623 }
1624
1625 void do_unlink(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1626 void *infop EXT2FS_ATTR((unused)))
1627 {
1628 if (common_args_process(argc, argv, 2, 2, "link",
1629 "<pathname>", CHECK_FS_RW))
1630 return;
1631
1632 unlink_file_by_name(argv[1]);
1633 }
1634
1635 void do_copy_inode(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1636 void *infop EXT2FS_ATTR((unused)))
1637 {
1638 ext2_ino_t src_ino, dest_ino;
1639 unsigned char buf[4096];
1640
1641 if (common_args_process(argc, argv, 3, 3, "copy_inode",
1642 "<source file> <dest_name>", CHECK_FS_RW))
1643 return;
1644
1645 src_ino = string_to_inode(argv[1]);
1646 if (!src_ino)
1647 return;
1648
1649 dest_ino = string_to_inode(argv[2]);
1650 if (!dest_ino)
1651 return;
1652
1653 if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
1654 argv[0], sizeof(buf), 0))
1655 return;
1656
1657 if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
1658 argv[0], sizeof(buf), 0))
1659 return;
1660 }
1661
1662 #endif /* READ_ONLY */
1663
1664 void do_find_free_block(int argc, ss_argv_t argv,
1665 int sci_idx EXT2FS_ATTR((unused)),
1666 void *infop EXT2FS_ATTR((unused)))
1667 {
1668 blk64_t free_blk, goal, first_free = 0;
1669 int count;
1670 errcode_t retval;
1671 char *tmp;
1672
1673 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1674 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1675 return;
1676 }
1677 if (check_fs_open(argv[0]))
1678 return;
1679
1680 if (argc > 1) {
1681 count = strtol(argv[1],&tmp,0);
1682 if (*tmp) {
1683 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1684 return;
1685 }
1686 } else
1687 count = 1;
1688
1689 if (argc > 2) {
1690 goal = strtol(argv[2], &tmp, 0);
1691 if (*tmp) {
1692 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1693 return;
1694 }
1695 }
1696 else
1697 goal = current_fs->super->s_first_data_block;
1698
1699 printf("Free blocks found: ");
1700 free_blk = goal - 1;
1701 while (count-- > 0) {
1702 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1703 &free_blk);
1704 if (first_free) {
1705 if (first_free == free_blk)
1706 break;
1707 } else
1708 first_free = free_blk;
1709 if (retval) {
1710 com_err("ext2fs_new_block", retval, 0);
1711 return;
1712 } else
1713 printf("%llu ", (unsigned long long) free_blk);
1714 }
1715 printf("\n");
1716 }
1717
1718 void do_find_free_inode(int argc, ss_argv_t argv,
1719 int sci_idx EXT2FS_ATTR((unused)),
1720 void *infop EXT2FS_ATTR((unused)))
1721 {
1722 ext2_ino_t free_inode, dir;
1723 int mode;
1724 int retval;
1725 char *tmp;
1726
1727 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1728 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1729 return;
1730 }
1731 if (check_fs_open(argv[0]))
1732 return;
1733
1734 if (argc > 1) {
1735 dir = strtol(argv[1], &tmp, 0);
1736 if (*tmp) {
1737 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1738 return;
1739 }
1740 }
1741 else
1742 dir = root;
1743 if (argc > 2) {
1744 mode = strtol(argv[2], &tmp, 0);
1745 if (*tmp) {
1746 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1747 return;
1748 }
1749 } else
1750 mode = 010755;
1751
1752 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1753 if (retval)
1754 com_err("ext2fs_new_inode", retval, 0);
1755 else
1756 printf("Free inode found: %u\n", free_inode);
1757 }
1758
1759 #ifndef READ_ONLY
1760 void do_write(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1761 void *infop EXT2FS_ATTR((unused)))
1762 {
1763 errcode_t retval;
1764
1765 if (common_args_process(argc, argv, 3, 3, "write",
1766 "<native file> <new file>", CHECK_FS_RW))
1767 return;
1768
1769 retval = do_write_internal(current_fs, cwd, argv[1], argv[2], 0, root);
1770 if (retval)
1771 com_err(argv[0], retval, 0);
1772 }
1773
1774 void do_mknod(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1775 void *infop EXT2FS_ATTR((unused)))
1776 {
1777 unsigned long major, minor;
1778 errcode_t retval;
1779 int nr;
1780 struct stat st;
1781
1782 if (check_fs_open(argv[0]))
1783 return;
1784 if (argc < 3 || argv[2][1]) {
1785 usage:
1786 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1787 return;
1788 }
1789
1790 minor = major = 0;
1791 switch (argv[2][0]) {
1792 case 'p':
1793 st.st_mode = S_IFIFO;
1794 nr = 3;
1795 break;
1796 case 'c':
1797 st.st_mode = S_IFCHR;
1798 nr = 5;
1799 break;
1800 case 'b':
1801 st.st_mode = S_IFBLK;
1802 nr = 5;
1803 break;
1804 default:
1805 nr = 0;
1806 }
1807
1808 if (nr == 5) {
1809 char *end1 = NULL, *end2 = NULL;
1810
1811 major = strtoul(argv[3], &end1, 0);
1812 minor = strtoul(argv[4], &end2, 0);
1813 if (major > 65535 || minor > 65535 ||
1814 (end1 && *end1) || (end2 && *end2))
1815 nr = 0;
1816 }
1817
1818 if (argc != nr)
1819 goto usage;
1820
1821 st.st_rdev = makedev(major, minor);
1822 retval = do_mknod_internal(current_fs, cwd, argv[1],
1823 st.st_mode, st.st_rdev);
1824 if (retval)
1825 com_err(argv[0], retval, 0);
1826 }
1827
1828 void do_mkdir(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1829 void *infop EXT2FS_ATTR((unused)))
1830 {
1831 errcode_t retval;
1832
1833 if (common_args_process(argc, argv, 2, 2, "mkdir",
1834 "<filename>", CHECK_FS_RW))
1835 return;
1836
1837 retval = do_mkdir_internal(current_fs, cwd, argv[1], 0, root);
1838 if (retval)
1839 com_err(argv[0], retval, 0);
1840
1841 }
1842
1843 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1844 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1845 blk64_t ref_block EXT2FS_ATTR((unused)),
1846 int ref_offset EXT2FS_ATTR((unused)),
1847 void *private)
1848 {
1849 blk64_t block = *blocknr;
1850 blk64_t *last_cluster = (blk64_t *)private;
1851 blk64_t cluster = EXT2FS_B2C(fs, block);
1852
1853 if (cluster == *last_cluster)
1854 return 0;
1855
1856 *last_cluster = cluster;
1857
1858 ext2fs_block_alloc_stats2(fs, block, -1);
1859 return 0;
1860 }
1861
1862 static void kill_file_by_inode(ext2_ino_t inode)
1863 {
1864 struct ext2_inode inode_buf;
1865
1866 if (debugfs_read_inode(inode, &inode_buf, 0))
1867 return;
1868 ext2fs_set_dtime(current_fs, &inode_buf);
1869 if (debugfs_write_inode(inode, &inode_buf, 0))
1870 return;
1871 if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1872 blk64_t last_cluster = 0;
1873 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1874 NULL, release_blocks_proc, &last_cluster);
1875 }
1876 printf("\n");
1877 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1878 LINUX_S_ISDIR(inode_buf.i_mode));
1879 }
1880
1881
1882 void do_kill_file(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1883 void *infop EXT2FS_ATTR((unused)))
1884 {
1885 ext2_ino_t inode_num;
1886
1887 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1888 return;
1889
1890 kill_file_by_inode(inode_num);
1891 }
1892
1893 void do_rm(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1894 void *infop EXT2FS_ATTR((unused)))
1895 {
1896 int retval;
1897 ext2_ino_t inode_num;
1898 struct ext2_inode inode;
1899
1900 if (common_args_process(argc, argv, 2, 2, "rm",
1901 "<filename>", CHECK_FS_RW))
1902 return;
1903
1904 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1905 if (retval) {
1906 com_err(argv[0], retval, "while trying to resolve filename");
1907 return;
1908 }
1909
1910 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1911 return;
1912
1913 if (LINUX_S_ISDIR(inode.i_mode)) {
1914 com_err(argv[0], 0, "file is a directory");
1915 return;
1916 }
1917
1918 --inode.i_links_count;
1919 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1920 return;
1921
1922 unlink_file_by_name(argv[1]);
1923 if (inode.i_links_count == 0)
1924 kill_file_by_inode(inode_num);
1925 }
1926
1927 struct rd_struct {
1928 ext2_ino_t parent;
1929 int empty;
1930 };
1931
1932 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1933 int entry EXT2FS_ATTR((unused)),
1934 struct ext2_dir_entry *dirent,
1935 int offset EXT2FS_ATTR((unused)),
1936 int blocksize EXT2FS_ATTR((unused)),
1937 char *buf EXT2FS_ATTR((unused)),
1938 void *private)
1939 {
1940 struct rd_struct *rds = (struct rd_struct *) private;
1941
1942 if (dirent->inode == 0)
1943 return 0;
1944 if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1945 return 0;
1946 if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1947 (dirent->name[1] == '.')) {
1948 rds->parent = dirent->inode;
1949 return 0;
1950 }
1951 rds->empty = 0;
1952 return 0;
1953 }
1954
1955 void do_rmdir(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1956 void *infop EXT2FS_ATTR((unused)))
1957 {
1958 int retval;
1959 ext2_ino_t inode_num;
1960 struct ext2_inode inode;
1961 struct rd_struct rds;
1962
1963 if (common_args_process(argc, argv, 2, 2, "rmdir",
1964 "<filename>", CHECK_FS_RW))
1965 return;
1966
1967 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1968 if (retval) {
1969 com_err(argv[0], retval, "while trying to resolve filename");
1970 return;
1971 }
1972
1973 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1974 return;
1975
1976 if (!LINUX_S_ISDIR(inode.i_mode)) {
1977 com_err(argv[0], 0, "file is not a directory");
1978 return;
1979 }
1980
1981 rds.parent = 0;
1982 rds.empty = 1;
1983
1984 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1985 0, rmdir_proc, &rds);
1986 if (retval) {
1987 com_err(argv[0], retval, "while iterating over directory");
1988 return;
1989 }
1990 if (rds.empty == 0) {
1991 com_err(argv[0], 0, "directory not empty");
1992 return;
1993 }
1994
1995 inode.i_links_count = 0;
1996 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1997 return;
1998
1999 unlink_file_by_name(argv[1]);
2000 kill_file_by_inode(inode_num);
2001
2002 if (rds.parent) {
2003 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
2004 return;
2005 if (inode.i_links_count > 1)
2006 inode.i_links_count--;
2007 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
2008 return;
2009 }
2010 }
2011 #endif /* READ_ONLY */
2012
2013 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
2014 ss_argv_t argv EXT2FS_ATTR((unused)),
2015 int sci_idx EXT2FS_ATTR((unused)),
2016 void *infop EXT2FS_ATTR((unused)))
2017 {
2018 if (current_fs)
2019 printf("Open mode: read-%s\n",
2020 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2021 printf("Filesystem in use: %s\n",
2022 current_fs ? current_fs->device_name : "--none--");
2023 }
2024
2025 #ifndef READ_ONLY
2026 void do_expand_dir(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2027 void *infop EXT2FS_ATTR((unused)))
2028 {
2029 ext2_ino_t inode;
2030 int retval;
2031
2032 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2033 return;
2034
2035 retval = ext2fs_expand_dir(current_fs, inode);
2036 if (retval)
2037 com_err("ext2fs_expand_dir", retval, 0);
2038 return;
2039 }
2040
2041 void do_features(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2042 void *infop EXT2FS_ATTR((unused)))
2043 {
2044 int i;
2045
2046 if (check_fs_open(argv[0]))
2047 return;
2048
2049 if ((argc != 1) && check_fs_read_write(argv[0]))
2050 return;
2051 for (i=1; i < argc; i++) {
2052 if (e2p_edit_feature(argv[i],
2053 &current_fs->super->s_feature_compat, 0))
2054 com_err(argv[0], 0, "Unknown feature: %s\n",
2055 argv[i]);
2056 else
2057 ext2fs_mark_super_dirty(current_fs);
2058 }
2059 print_features(current_fs->super, stdout);
2060 }
2061 #endif /* READ_ONLY */
2062
2063 void do_bmap(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2064 void *infop EXT2FS_ATTR((unused)))
2065 {
2066 ext2_ino_t ino;
2067 blk64_t blk, pblk = 0;
2068 int c, err, flags = 0, ret_flags = 0;
2069 errcode_t errcode;
2070
2071 if (check_fs_open(argv[0]))
2072 return;
2073
2074 reset_getopt();
2075 while ((c = getopt (argc, argv, "a")) != EOF) {
2076 switch (c) {
2077 case 'a':
2078 flags |= BMAP_ALLOC;
2079 break;
2080 default:
2081 goto print_usage;
2082 }
2083 }
2084
2085 if (argc <= optind+1) {
2086 print_usage:
2087 com_err(0, 0,
2088 "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2089 return;
2090 }
2091
2092 ino = string_to_inode(argv[optind++]);
2093 if (!ino)
2094 return;
2095 err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2096 if (err)
2097 return;
2098
2099 if (argc > optind+1)
2100 goto print_usage;
2101
2102 if (argc == optind+1) {
2103 err = strtoblk(argv[0], argv[optind++],
2104 "physical block", &pblk);
2105 if (err)
2106 return;
2107 if (flags & BMAP_ALLOC) {
2108 com_err(0, 0, "Can't set and allocate a block");
2109 return;
2110 }
2111 flags |= BMAP_SET;
2112 }
2113
2114 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2115 &ret_flags, &pblk);
2116 if (errcode) {
2117 com_err(argv[0], errcode,
2118 "while mapping logical block %llu\n",
2119 (unsigned long long) blk);
2120 return;
2121 }
2122 printf("%llu", (unsigned long long) pblk);
2123 if (ret_flags & BMAP_RET_UNINIT)
2124 fputs(" (uninit)", stdout);
2125 fputc('\n', stdout);
2126 }
2127
2128 void do_imap(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2129 void *infop EXT2FS_ATTR((unused)))
2130 {
2131 ext2_ino_t ino;
2132 unsigned long group, block, block_nr, offset;
2133
2134 if (common_args_process(argc, argv, 2, 2, argv[0],
2135 "<file>", 0))
2136 return;
2137 ino = string_to_inode(argv[1]);
2138 if (!ino)
2139 return;
2140
2141 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2142 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2143 EXT2_INODE_SIZE(current_fs->super);
2144 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2145 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2146 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2147 group);
2148 return;
2149 }
2150 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2151 block;
2152 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2153
2154 printf("Inode %u is part of block group %lu\n"
2155 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2156 block_nr, offset);
2157
2158 }
2159
2160 void do_idump(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2161 void *infop EXT2FS_ATTR((unused)))
2162 {
2163 struct ext2_inode_large *inode;
2164 ext2_ino_t ino;
2165 unsigned char *buf;
2166 errcode_t err;
2167 unsigned int isize, size, offset = 0;
2168 int c, mode = 0;
2169
2170 reset_getopt();
2171 while ((c = getopt (argc, argv, "bex")) != EOF) {
2172 if (mode || c == '?') {
2173 com_err(argv[0], 0,
2174 "Usage: inode_dump [-b]|[-e] <file>");
2175 return;
2176 }
2177 mode = c;
2178 }
2179 if (optind != argc-1)
2180 return;
2181
2182 if (check_fs_open(argv[0]))
2183 return;
2184
2185 ino = string_to_inode(argv[optind]);
2186 if (!ino)
2187 return;
2188
2189 isize = EXT2_INODE_SIZE(current_fs->super);
2190 err = ext2fs_get_mem(isize, &buf);
2191 if (err) {
2192 com_err(argv[0], err, "while allocating memory");
2193 return;
2194 }
2195
2196 err = ext2fs_read_inode_full(current_fs, ino,
2197 (struct ext2_inode *)buf, isize);
2198 if (err) {
2199 com_err(argv[0], err, "while reading inode %u", ino);
2200 goto err;
2201 }
2202
2203 inode = (struct ext2_inode_large *) buf;
2204 size = isize;
2205 switch (mode) {
2206 case 'b':
2207 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2208 size = sizeof(inode->i_block);
2209 break;
2210 case 'x':
2211 case 'e':
2212 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2213 com_err(argv[0], 0, "No extra space in inode");
2214 goto err;
2215 }
2216 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2217 if (offset > size)
2218 goto err;
2219 size -= offset;
2220 break;
2221 }
2222 if (mode == 'x')
2223 raw_inode_xattr_dump(stdout, buf + offset, size);
2224 else
2225 do_byte_hexdump(stdout, buf + offset, size);
2226 err:
2227 ext2fs_free_mem(&buf);
2228 }
2229
2230 #ifndef READ_ONLY
2231 void do_set_current_time(int argc, ss_argv_t argv,
2232 int sci_idx EXT2FS_ATTR((unused)),
2233 void *infop EXT2FS_ATTR((unused)))
2234 {
2235 __s64 now;
2236
2237 if (common_args_process(argc, argv, 2, 2, argv[0],
2238 "<time>", 0))
2239 return;
2240
2241 now = string_to_time(argv[1]);
2242 if (now == -1) {
2243 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2244 argv[1]);
2245 return;
2246
2247 } else {
2248 printf("Setting current time to %s\n", time_to_string(now));
2249 current_fs->now = now;
2250 }
2251 }
2252 #endif /* READ_ONLY */
2253
2254 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2255 {
2256 int compat, bit, ret;
2257 unsigned int feature_mask;
2258
2259 if (name) {
2260 if (feature_type == E2P_FS_FEATURE)
2261 ret = e2p_string2feature(name, &compat, &feature_mask);
2262 else
2263 ret = e2p_jrnl_string2feature(name, &compat,
2264 &feature_mask);
2265 if (ret)
2266 return ret;
2267
2268 if (!(supp[compat] & feature_mask))
2269 return 1;
2270 } else {
2271 for (compat = 0; compat < 3; compat++) {
2272 for (bit = 0, feature_mask = 1; bit < 32;
2273 bit++, feature_mask <<= 1) {
2274 if (supp[compat] & feature_mask) {
2275 if (feature_type == E2P_FS_FEATURE)
2276 fprintf(stdout, " %s",
2277 e2p_feature2string(compat,
2278 feature_mask));
2279 else
2280 fprintf(stdout, " %s",
2281 e2p_jrnl_feature2string(compat,
2282 feature_mask));
2283 }
2284 }
2285 }
2286 fprintf(stdout, "\n");
2287 }
2288
2289 return 0;
2290 }
2291
2292 void do_supported_features(int argc, ss_argv_t argv,
2293 int sci_idx EXT2FS_ATTR((unused)),
2294 void *infop EXT2FS_ATTR((unused)))
2295 {
2296 int ret;
2297 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2298 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2299 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2300 __u32 jrnl_supp[3] = { JBD2_KNOWN_COMPAT_FEATURES,
2301 JBD2_KNOWN_INCOMPAT_FEATURES,
2302 JBD2_KNOWN_ROCOMPAT_FEATURES };
2303
2304 if (argc > 1) {
2305 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2306 if (ret) {
2307 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2308 argv[1]);
2309 }
2310 if (ret)
2311 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2312 else
2313 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2314 } else {
2315 fprintf(stdout, "Supported features:");
2316 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2317 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2318 }
2319 }
2320
2321 #ifndef READ_ONLY
2322 void do_punch(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2323 void *infop EXT2FS_ATTR((unused)))
2324 {
2325 ext2_ino_t ino;
2326 blk64_t start, end;
2327 int err;
2328 errcode_t errcode;
2329
2330 if (common_args_process(argc, argv, 3, 4, argv[0],
2331 "<file> start_blk [end_blk]",
2332 CHECK_FS_RW | CHECK_FS_BITMAPS))
2333 return;
2334
2335 ino = string_to_inode(argv[1]);
2336 if (!ino)
2337 return;
2338 err = strtoblk(argv[0], argv[2], "logical block", &start);
2339 if (err)
2340 return;
2341 if (argc == 4) {
2342 err = strtoblk(argv[0], argv[3], "logical block", &end);
2343 if (err)
2344 return;
2345 } else
2346 end = ~0;
2347
2348 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2349
2350 if (errcode) {
2351 com_err(argv[0], errcode,
2352 "while truncating inode %u from %llu to %llu\n", ino,
2353 (unsigned long long) start, (unsigned long long) end);
2354 return;
2355 }
2356 }
2357
2358 void do_fallocate(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2359 void *infop EXT2FS_ATTR((unused)))
2360 {
2361 ext2_ino_t ino;
2362 blk64_t start, end;
2363 int err;
2364 errcode_t errcode;
2365
2366 if (common_args_process(argc, argv, 3, 4, argv[0],
2367 "<file> start_blk [end_blk]",
2368 CHECK_FS_RW | CHECK_FS_BITMAPS))
2369 return;
2370
2371 ino = string_to_inode(argv[1]);
2372 if (!ino)
2373 return;
2374 err = strtoblk(argv[0], argv[2], "logical block", &start);
2375 if (err)
2376 return;
2377 if (argc == 4) {
2378 err = strtoblk(argv[0], argv[3], "logical block", &end);
2379 if (err)
2380 return;
2381 } else
2382 end = ~0;
2383
2384 errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2385 ino, NULL, ~0ULL, start, end - start + 1);
2386
2387 if (errcode) {
2388 com_err(argv[0], errcode,
2389 "while fallocating inode %u from %llu to %llu\n", ino,
2390 (unsigned long long) start, (unsigned long long) end);
2391 return;
2392 }
2393 }
2394
2395 void do_symlink(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2396 void *infop EXT2FS_ATTR((unused)))
2397 {
2398 errcode_t retval;
2399
2400 if (common_args_process(argc, argv, 3, 3, "symlink",
2401 "<filename> <target>", CHECK_FS_RW))
2402 return;
2403
2404 retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2405 if (retval)
2406 com_err(argv[0], retval, 0);
2407
2408 }
2409 #endif /* READ_ONLY */
2410
2411 #if CONFIG_MMP
2412 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), ss_argv_t argv,
2413 int sci_idx EXT2FS_ATTR((unused)),
2414 void *infop EXT2FS_ATTR((unused)))
2415 {
2416 struct mmp_struct *mmp_s;
2417 unsigned long long mmp_block;
2418 time_t t;
2419 errcode_t retval = 0;
2420
2421 if (check_fs_open(argv[0]))
2422 return;
2423
2424 if (argc > 1) {
2425 char *end = NULL;
2426 mmp_block = strtoull(argv[1], &end, 0);
2427 if (end == argv[0] || mmp_block == 0) {
2428 fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2429 argv[0], argv[1]);
2430 return;
2431 }
2432 } else {
2433 mmp_block = current_fs->super->s_mmp_block;
2434 }
2435
2436 if (mmp_block == 0) {
2437 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2438 argv[0]);
2439 return;
2440 }
2441
2442 if (current_fs->mmp_buf == NULL) {
2443 retval = ext2fs_get_mem(current_fs->blocksize,
2444 &current_fs->mmp_buf);
2445 if (retval) {
2446 com_err(argv[0], retval, "allocating MMP buffer.\n");
2447 return;
2448 }
2449 }
2450
2451 mmp_s = current_fs->mmp_buf;
2452
2453 retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2454 if (retval) {
2455 com_err(argv[0], retval, "reading MMP block %llu.\n",
2456 (unsigned long long) mmp_block);
2457 return;
2458 }
2459
2460 t = mmp_s->mmp_time;
2461 fprintf(stdout, "block_number: %llu\n",
2462 (unsigned long long) current_fs->super->s_mmp_block);
2463 fprintf(stdout, "update_interval: %d\n",
2464 current_fs->super->s_mmp_update_interval);
2465 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2466 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2467 fprintf(stdout, "time: %llu -- %s",
2468 (unsigned long long) mmp_s->mmp_time, ctime(&t));
2469 fprintf(stdout, "node_name: %.*s\n",
2470 EXT2_LEN_STR(mmp_s->mmp_nodename));
2471 fprintf(stdout, "device_name: %.*s\n",
2472 EXT2_LEN_STR(mmp_s->mmp_bdevname));
2473 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2474 fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2475 }
2476 #else
2477 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2478 ss_argv_t argv EXT2FS_ATTR((unused)),
2479 int sci_idx EXT2FS_ATTR((unused)),
2480 void *infop EXT2FS_ATTR((unused)))
2481 {
2482 fprintf(stdout, "MMP is unsupported, please recompile with "
2483 "--enable-mmp\n");
2484 }
2485 #endif
2486
2487 static int source_file(const char *cmd_file, int ss_idx)
2488 {
2489 FILE *f;
2490 char buf[BUFSIZ];
2491 char *cp;
2492 int exit_status = 0;
2493 int retval;
2494
2495 if (strcmp(cmd_file, "-") == 0)
2496 f = stdin;
2497 else {
2498 f = fopen(cmd_file, "r");
2499 if (!f) {
2500 perror(cmd_file);
2501 exit(1);
2502 }
2503 }
2504 fflush(stdout);
2505 fflush(stderr);
2506 setbuf(stdout, NULL);
2507 setbuf(stderr, NULL);
2508 while (!feof(f)) {
2509 if (fgets(buf, sizeof(buf), f) == NULL)
2510 break;
2511 if (buf[0] == '#') {
2512 printf("%s", buf);
2513 continue;
2514 }
2515 cp = strchr(buf, '\n');
2516 if (cp)
2517 *cp = 0;
2518 cp = strchr(buf, '\r');
2519 if (cp)
2520 *cp = 0;
2521 printf("debugfs: %s\n", buf);
2522 retval = ss_execute_line(ss_idx, buf);
2523 if (retval) {
2524 ss_perror(ss_idx, retval, buf);
2525 exit_status++;
2526 }
2527 }
2528 if (f != stdin)
2529 fclose(f);
2530 return exit_status;
2531 }
2532
2533 int main(int argc, char **argv)
2534 {
2535 int retval;
2536 const char *usage =
2537 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2538 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2539 #ifndef READ_ONLY
2540 "[-w] [-z undo_file] "
2541 #endif
2542 "[-c]] [device]";
2543 int c;
2544 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES |
2545 EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
2546 char *request = 0;
2547 int exit_status = 0;
2548 char *cmd_file = 0;
2549 blk64_t superblock = 0;
2550 blk64_t blocksize = 0;
2551 int catastrophic = 0;
2552 char *data_filename = 0;
2553 #ifdef READ_ONLY
2554 const char *opt_string = "nicR:f:b:s:Vd:D";
2555 #else
2556 const char *opt_string = "niwcR:f:b:s:Vd:Dz:";
2557 #endif
2558 char *undo_file = NULL;
2559 #ifdef CONFIG_JBD_DEBUG
2560 char *jbd_debug;
2561 #endif
2562
2563 setlocale(LC_CTYPE, "");
2564
2565 if (debug_prog_name == 0)
2566 #ifdef READ_ONLY
2567 debug_prog_name = "rdebugfs";
2568 #else
2569 debug_prog_name = "debugfs";
2570 #endif
2571 add_error_table(&et_ext2_error_table);
2572 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2573 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2574
2575 #ifdef CONFIG_JBD_DEBUG
2576 jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2577 if (jbd_debug) {
2578 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2579
2580 if (res != 1) {
2581 fprintf(stderr,
2582 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2583 jbd_debug);
2584 exit(1);
2585 }
2586 }
2587 #endif
2588 while ((c = getopt (argc, argv, opt_string)) != EOF) {
2589 switch (c) {
2590 case 'R':
2591 request = optarg;
2592 break;
2593 case 'f':
2594 cmd_file = optarg;
2595 break;
2596 case 'd':
2597 data_filename = optarg;
2598 break;
2599 case 'i':
2600 open_flags |= EXT2_FLAG_IMAGE_FILE;
2601 break;
2602 case 'n':
2603 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2604 break;
2605 #ifndef READ_ONLY
2606 case 'w':
2607 open_flags |= EXT2_FLAG_RW;
2608 break;
2609 #endif
2610 case 'D':
2611 open_flags |= EXT2_FLAG_DIRECT_IO;
2612 break;
2613 case 'b':
2614 blocksize = parse_ulong(optarg, argv[0],
2615 "block size", 0);
2616 break;
2617 case 's':
2618 retval = strtoblk(argv[0], optarg,
2619 "superblock block number",
2620 &superblock);
2621 if (retval)
2622 return 1;
2623 break;
2624 case 'c':
2625 catastrophic = 1;
2626 break;
2627 case 'V':
2628 /* Print version number and exit */
2629 fprintf(stderr, "\tUsing %s\n",
2630 error_message(EXT2_ET_BASE));
2631 exit(0);
2632 #ifndef READ_ONLY
2633 case 'z':
2634 undo_file = optarg;
2635 break;
2636 #endif
2637 default:
2638 com_err(argv[0], 0, usage, debug_prog_name);
2639 return 1;
2640 }
2641 }
2642 if (optind < argc)
2643 open_filesystem(argv[optind], open_flags,
2644 superblock, blocksize, catastrophic,
2645 data_filename, undo_file);
2646
2647 ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2648 &debug_cmds, &retval);
2649 if (retval) {
2650 ss_perror(ss_sci_idx, retval, "creating invocation");
2651 exit(1);
2652 }
2653 ss_get_readline(ss_sci_idx);
2654
2655 (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
2656 if (retval) {
2657 ss_perror(ss_sci_idx, retval, "adding standard requests");
2658 exit (1);
2659 }
2660 if (extra_cmds)
2661 ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
2662 if (retval) {
2663 ss_perror(ss_sci_idx, retval, "adding extra requests");
2664 exit (1);
2665 }
2666 if (request) {
2667 retval = 0;
2668 retval = ss_execute_line(ss_sci_idx, request);
2669 if (retval) {
2670 ss_perror(ss_sci_idx, retval, request);
2671 exit_status++;
2672 }
2673 } else if (cmd_file) {
2674 exit_status = source_file(cmd_file, ss_sci_idx);
2675 } else {
2676 ss_listen(ss_sci_idx);
2677 }
2678
2679 ss_delete_invocation(ss_sci_idx);
2680
2681 if (current_fs)
2682 close_filesystem();
2683
2684 remove_error_table(&et_ext2_error_table);
2685 return exit_status;
2686 }
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