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e2fuzz: Create a tool to fuzz ext* filesystems
[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 #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
29 #include "debugfs.h"
30 #include "uuid/uuid.h"
31 #include "e2p/e2p.h"
32
33 #include <ext2fs/ext2_ext_attr.h>
34
35 #include "../version.h"
36 #include "jfs_user.h"
37
38 #ifndef BUFSIZ
39 #define BUFSIZ 8192
40 #endif
41
42 ss_request_table *extra_cmds;
43 const char *debug_prog_name;
44 int sci_idx;
45
46 ext2_filsys current_fs;
47 quota_ctx_t current_qctx;
48 ext2_ino_t root, cwd;
49
50 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
51 blk64_t blocksize, int catastrophic,
52 char *data_filename)
53 {
54 int retval;
55 io_channel data_io = 0;
56
57 if (superblock != 0 && blocksize == 0) {
58 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
59 current_fs = NULL;
60 return;
61 }
62
63 if (data_filename) {
64 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
65 com_err(device, 0,
66 "The -d option is only valid when reading an e2image file");
67 current_fs = NULL;
68 return;
69 }
70 retval = unix_io_manager->open(data_filename, 0, &data_io);
71 if (retval) {
72 com_err(data_filename, 0, "while opening data source");
73 current_fs = NULL;
74 return;
75 }
76 }
77
78 if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
79 com_err(device, 0,
80 "opening read-only because of catastrophic mode");
81 open_flags &= ~EXT2_FLAG_RW;
82 }
83 if (catastrophic)
84 open_flags |= EXT2_FLAG_SKIP_MMP;
85
86 retval = ext2fs_open(device, open_flags, superblock, blocksize,
87 unix_io_manager, &current_fs);
88 if (retval) {
89 com_err(device, retval, "while opening filesystem");
90 current_fs = NULL;
91 return;
92 }
93 current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
94
95 if (catastrophic)
96 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
97 else {
98 retval = ext2fs_read_inode_bitmap(current_fs);
99 if (retval) {
100 com_err(device, retval, "while reading inode bitmap");
101 goto errout;
102 }
103 retval = ext2fs_read_block_bitmap(current_fs);
104 if (retval) {
105 com_err(device, retval, "while reading block bitmap");
106 goto errout;
107 }
108 }
109
110 if (data_io) {
111 retval = ext2fs_set_data_io(current_fs, data_io);
112 if (retval) {
113 com_err(device, retval,
114 "while setting data source");
115 goto errout;
116 }
117 }
118
119 root = cwd = EXT2_ROOT_INO;
120 return;
121
122 errout:
123 retval = ext2fs_close_free(&current_fs);
124 if (retval)
125 com_err(device, retval, "while trying to close filesystem");
126 }
127
128 void do_open_filesys(int argc, char **argv)
129 {
130 int c, err;
131 int catastrophic = 0;
132 blk64_t superblock = 0;
133 blk64_t blocksize = 0;
134 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
135 char *data_filename = 0;
136
137 reset_getopt();
138 while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
139 switch (c) {
140 case 'i':
141 open_flags |= EXT2_FLAG_IMAGE_FILE;
142 break;
143 case 'w':
144 #ifdef READ_ONLY
145 goto print_usage;
146 #else
147 open_flags |= EXT2_FLAG_RW;
148 #endif /* READ_ONLY */
149 break;
150 case 'f':
151 open_flags |= EXT2_FLAG_FORCE;
152 break;
153 case 'e':
154 open_flags |= EXT2_FLAG_EXCLUSIVE;
155 break;
156 case 'c':
157 catastrophic = 1;
158 break;
159 case 'd':
160 data_filename = optarg;
161 break;
162 case 'D':
163 open_flags |= EXT2_FLAG_DIRECT_IO;
164 break;
165 case 'b':
166 blocksize = parse_ulong(optarg, argv[0],
167 "block size", &err);
168 if (err)
169 return;
170 break;
171 case 's':
172 err = strtoblk(argv[0], optarg,
173 "superblock block number", &superblock);
174 if (err)
175 return;
176 break;
177 default:
178 goto print_usage;
179 }
180 }
181 if (optind != argc-1) {
182 goto print_usage;
183 }
184 if (check_fs_not_open(argv[0]))
185 return;
186 open_filesystem(argv[optind], open_flags,
187 superblock, blocksize, catastrophic,
188 data_filename);
189 return;
190
191 print_usage:
192 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
193 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] "
194 #ifndef READ_ONLY
195 "[-w] "
196 #endif
197 "<device>\n", argv[0]);
198 }
199
200 void do_lcd(int argc, char **argv)
201 {
202 if (argc != 2) {
203 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
204 return;
205 }
206
207 if (chdir(argv[1]) == -1) {
208 com_err(argv[0], errno,
209 "while trying to change native directory to %s",
210 argv[1]);
211 return;
212 }
213 }
214
215 static void close_filesystem(NOARGS)
216 {
217 int retval;
218
219 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
220 retval = ext2fs_write_inode_bitmap(current_fs);
221 if (retval)
222 com_err("ext2fs_write_inode_bitmap", retval, 0);
223 }
224 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
225 retval = ext2fs_write_block_bitmap(current_fs);
226 if (retval)
227 com_err("ext2fs_write_block_bitmap", retval, 0);
228 }
229 if (current_qctx)
230 quota_release_context(&current_qctx);
231 retval = ext2fs_close_free(&current_fs);
232 if (retval)
233 com_err("ext2fs_close", retval, 0);
234 return;
235 }
236
237 void do_close_filesys(int argc, char **argv)
238 {
239 int c;
240
241 if (check_fs_open(argv[0]))
242 return;
243
244 reset_getopt();
245 while ((c = getopt (argc, argv, "a")) != EOF) {
246 switch (c) {
247 case 'a':
248 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
249 break;
250 default:
251 goto print_usage;
252 }
253 }
254
255 if (argc > optind) {
256 print_usage:
257 com_err(0, 0, "Usage: close_filesys [-a]");
258 return;
259 }
260
261 close_filesystem();
262 }
263
264 #ifndef READ_ONLY
265 void do_init_filesys(int argc, char **argv)
266 {
267 struct ext2_super_block param;
268 errcode_t retval;
269 int err;
270 blk64_t blocks;
271
272 if (common_args_process(argc, argv, 3, 3, "initialize",
273 "<device> <blocks>", CHECK_FS_NOTOPEN))
274 return;
275
276 memset(&param, 0, sizeof(struct ext2_super_block));
277 err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
278 if (err)
279 return;
280 ext2fs_blocks_count_set(&param, blocks);
281 retval = ext2fs_initialize(argv[1], 0, &param,
282 unix_io_manager, &current_fs);
283 if (retval) {
284 com_err(argv[1], retval, "while initializing filesystem");
285 current_fs = NULL;
286 return;
287 }
288 root = cwd = EXT2_ROOT_INO;
289 return;
290 }
291
292 static void print_features(struct ext2_super_block * s, FILE *f)
293 {
294 int i, j, printed=0;
295 __u32 *mask = &s->s_feature_compat, m;
296
297 fputs("Filesystem features:", f);
298 for (i=0; i <3; i++,mask++) {
299 for (j=0,m=1; j < 32; j++, m<<=1) {
300 if (*mask & m) {
301 fprintf(f, " %s", e2p_feature2string(i, m));
302 printed++;
303 }
304 }
305 }
306 if (printed == 0)
307 fputs("(none)", f);
308 fputs("\n", f);
309 }
310 #endif /* READ_ONLY */
311
312 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
313 const char *str, int *first, FILE *f)
314 {
315 if (ext2fs_bg_flags_test(fs, group, mask)) {
316 if (*first) {
317 fputs(" [", f);
318 *first = 0;
319 } else
320 fputs(", ", f);
321 fputs(str, f);
322 }
323 }
324
325 void do_show_super_stats(int argc, char *argv[])
326 {
327 const char *units ="block";
328 dgrp_t i;
329 FILE *out;
330 int c, header_only = 0;
331 int numdirs = 0, first, gdt_csum;
332
333 reset_getopt();
334 while ((c = getopt (argc, argv, "h")) != EOF) {
335 switch (c) {
336 case 'h':
337 header_only++;
338 break;
339 default:
340 goto print_usage;
341 }
342 }
343 if (optind != argc) {
344 goto print_usage;
345 }
346 if (check_fs_open(argv[0]))
347 return;
348 out = open_pager();
349
350 if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
351 EXT4_FEATURE_RO_COMPAT_BIGALLOC))
352 units = "cluster";
353
354 list_super2(current_fs->super, out);
355 for (i=0; i < current_fs->group_desc_count; i++)
356 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
357 fprintf(out, "Directories: %d\n", numdirs);
358
359 if (header_only) {
360 close_pager(out);
361 return;
362 }
363
364 gdt_csum = ext2fs_has_group_desc_csum(current_fs);
365 for (i = 0; i < current_fs->group_desc_count; i++) {
366 fprintf(out, " Group %2d: block bitmap at %llu, "
367 "inode bitmap at %llu, "
368 "inode table at %llu\n"
369 " %u free %s%s, "
370 "%u free %s, "
371 "%u used %s%s",
372 i, ext2fs_block_bitmap_loc(current_fs, i),
373 ext2fs_inode_bitmap_loc(current_fs, i),
374 ext2fs_inode_table_loc(current_fs, i),
375 ext2fs_bg_free_blocks_count(current_fs, i), units,
376 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
377 "s" : "",
378 ext2fs_bg_free_inodes_count(current_fs, i),
379 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
380 "inodes" : "inode",
381 ext2fs_bg_used_dirs_count(current_fs, i),
382 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
383 : "directory", gdt_csum ? ", " : "\n");
384 if (gdt_csum)
385 fprintf(out, "%u unused %s\n",
386 ext2fs_bg_itable_unused(current_fs, i),
387 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
388 "inodes" : "inode");
389 first = 1;
390 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
391 &first, out);
392 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
393 &first, out);
394 if (gdt_csum) {
395 fprintf(out, "%sChecksum 0x%04x",
396 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
397 first = 0;
398 }
399 if (!first)
400 fputs("]\n", out);
401 }
402 close_pager(out);
403 return;
404 print_usage:
405 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
406 }
407
408 #ifndef READ_ONLY
409 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
410 char **argv EXT2FS_ATTR((unused)))
411 {
412 if (check_fs_open(argv[0]))
413 return;
414 if (check_fs_read_write(argv[0]))
415 return;
416
417 if (argv[1] && !strcmp(argv[1], "-clean"))
418 current_fs->super->s_state |= EXT2_VALID_FS;
419 else
420 current_fs->super->s_state &= ~EXT2_VALID_FS;
421 ext2fs_mark_super_dirty(current_fs);
422 }
423 #endif /* READ_ONLY */
424
425 struct list_blocks_struct {
426 FILE *f;
427 e2_blkcnt_t total;
428 blk64_t first_block, last_block;
429 e2_blkcnt_t first_bcnt, last_bcnt;
430 e2_blkcnt_t first;
431 };
432
433 static void finish_range(struct list_blocks_struct *lb)
434 {
435 if (lb->first_block == 0)
436 return;
437 if (lb->first)
438 lb->first = 0;
439 else
440 fprintf(lb->f, ", ");
441 if (lb->first_block == lb->last_block)
442 fprintf(lb->f, "(%lld):%llu",
443 (long long)lb->first_bcnt, lb->first_block);
444 else
445 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
446 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
447 lb->first_block, lb->last_block);
448 lb->first_block = 0;
449 }
450
451 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
452 blk64_t *blocknr, e2_blkcnt_t blockcnt,
453 blk64_t ref_block EXT2FS_ATTR((unused)),
454 int ref_offset EXT2FS_ATTR((unused)),
455 void *private)
456 {
457 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
458
459 lb->total++;
460 if (blockcnt >= 0) {
461 /*
462 * See if we can add on to the existing range (if it exists)
463 */
464 if (lb->first_block &&
465 (lb->last_block+1 == *blocknr) &&
466 (lb->last_bcnt+1 == blockcnt)) {
467 lb->last_block = *blocknr;
468 lb->last_bcnt = blockcnt;
469 return 0;
470 }
471 /*
472 * Start a new range.
473 */
474 finish_range(lb);
475 lb->first_block = lb->last_block = *blocknr;
476 lb->first_bcnt = lb->last_bcnt = blockcnt;
477 return 0;
478 }
479 /*
480 * Not a normal block. Always force a new range.
481 */
482 finish_range(lb);
483 if (lb->first)
484 lb->first = 0;
485 else
486 fprintf(lb->f, ", ");
487 if (blockcnt == -1)
488 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
489 else if (blockcnt == -2)
490 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
491 else if (blockcnt == -3)
492 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
493 return 0;
494 }
495
496 static void internal_dump_inode_extra(FILE *out,
497 const char *prefix EXT2FS_ATTR((unused)),
498 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
499 struct ext2_inode_large *inode)
500 {
501 struct ext2_ext_attr_entry *entry;
502 __u32 *magic;
503 char *start, *end;
504 unsigned int storage_size;
505
506 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
507 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
508 EXT2_GOOD_OLD_INODE_SIZE) {
509 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
510 inode->i_extra_isize);
511 return;
512 }
513 }
514
515 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
516 {
517 struct list_blocks_struct lb;
518
519 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
520 lb.total = 0;
521 lb.first_block = 0;
522 lb.f = f;
523 lb.first = 1;
524 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
525 list_blocks_proc, (void *)&lb);
526 finish_range(&lb);
527 if (lb.total)
528 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
529 fprintf(f,"\n");
530 }
531
532 static int int_log10(unsigned long long arg)
533 {
534 int l = 0;
535
536 arg = arg / 10;
537 while (arg) {
538 l++;
539 arg = arg / 10;
540 }
541 return l;
542 }
543
544 #define DUMP_LEAF_EXTENTS 0x01
545 #define DUMP_NODE_EXTENTS 0x02
546 #define DUMP_EXTENT_TABLE 0x04
547
548 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
549 int flags, int logical_width, int physical_width)
550 {
551 ext2_extent_handle_t handle;
552 struct ext2fs_extent extent;
553 struct ext2_extent_info info;
554 int op = EXT2_EXTENT_ROOT;
555 unsigned int printed = 0;
556 errcode_t errcode;
557
558 errcode = ext2fs_extent_open(current_fs, ino, &handle);
559 if (errcode)
560 return;
561
562 if (flags & DUMP_EXTENT_TABLE)
563 fprintf(f, "Level Entries %*s %*s Length Flags\n",
564 (logical_width*2)+3, "Logical",
565 (physical_width*2)+3, "Physical");
566 else
567 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
568
569 while (1) {
570 errcode = ext2fs_extent_get(handle, op, &extent);
571
572 if (errcode)
573 break;
574
575 op = EXT2_EXTENT_NEXT;
576
577 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
578 continue;
579
580 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
581 if ((flags & DUMP_LEAF_EXTENTS) == 0)
582 continue;
583 } else {
584 if ((flags & DUMP_NODE_EXTENTS) == 0)
585 continue;
586 }
587
588 errcode = ext2fs_extent_get_info(handle, &info);
589 if (errcode)
590 continue;
591
592 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
593 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
594 continue;
595
596 if (flags & DUMP_EXTENT_TABLE) {
597 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
598 "%*llu%*s %6u\n",
599 info.curr_level, info.max_depth,
600 info.curr_entry, info.num_entries,
601 logical_width,
602 extent.e_lblk,
603 logical_width,
604 extent.e_lblk + (extent.e_len - 1),
605 physical_width,
606 extent.e_pblk,
607 physical_width+3, "", extent.e_len);
608 continue;
609 }
610
611 fprintf(f, "%s(ETB%d):%lld",
612 printed ? ", " : "", info.curr_level,
613 extent.e_pblk);
614 printed = 1;
615 continue;
616 }
617
618 if (flags & DUMP_EXTENT_TABLE) {
619 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
620 "%*llu - %*llu %6u %s\n",
621 info.curr_level, info.max_depth,
622 info.curr_entry, info.num_entries,
623 logical_width,
624 extent.e_lblk,
625 logical_width,
626 extent.e_lblk + (extent.e_len - 1),
627 physical_width,
628 extent.e_pblk,
629 physical_width,
630 extent.e_pblk + (extent.e_len - 1),
631 extent.e_len,
632 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
633 "Uninit" : "");
634 continue;
635 }
636
637 if (extent.e_len == 0)
638 continue;
639 else if (extent.e_len == 1)
640 fprintf(f,
641 "%s(%lld%s):%lld",
642 printed ? ", " : "",
643 extent.e_lblk,
644 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
645 "[u]" : "",
646 extent.e_pblk);
647 else
648 fprintf(f,
649 "%s(%lld-%lld%s):%lld-%lld",
650 printed ? ", " : "",
651 extent.e_lblk,
652 extent.e_lblk + (extent.e_len - 1),
653 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
654 "[u]" : "",
655 extent.e_pblk,
656 extent.e_pblk + (extent.e_len - 1));
657 printed = 1;
658 }
659 if (printed)
660 fprintf(f, "\n");
661 ext2fs_extent_free(handle);
662 }
663
664 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
665 {
666 errcode_t retval;
667 size_t size;
668
669 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
670 if (!retval)
671 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
672 }
673
674 static void dump_fast_link(FILE *out, ext2_ino_t inode_num,
675 struct ext2_inode *inode, const char *prefix)
676 {
677 errcode_t retval = 0;
678 char *buf;
679 size_t size;
680
681 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
682 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
683 if (retval)
684 goto out;
685
686 retval = ext2fs_get_memzero(size + 1, &buf);
687 if (retval)
688 goto out;
689
690 retval = ext2fs_inline_data_get(current_fs, inode_num,
691 inode, buf, &size);
692 if (retval)
693 goto out;
694 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
695 (int)size, buf);
696
697 retval = ext2fs_free_mem(&buf);
698 if (retval)
699 goto out;
700 } else {
701 int sz = EXT2_I_SIZE(inode);
702
703 if (sz > sizeof(inode->i_block))
704 sz = sizeof(inode->i_block);
705 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix, sz,
706 (char *)inode->i_block);
707 }
708 out:
709 if (retval)
710 com_err(__func__, retval, "while dumping link destination");
711 }
712
713 void internal_dump_inode(FILE *out, const char *prefix,
714 ext2_ino_t inode_num, struct ext2_inode *inode,
715 int do_dump_blocks)
716 {
717 const char *i_type;
718 char frag, fsize;
719 int os = current_fs->super->s_creator_os;
720 struct ext2_inode_large *large_inode;
721 int is_large_inode = 0;
722
723 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
724 is_large_inode = 1;
725 large_inode = (struct ext2_inode_large *) inode;
726
727 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
728 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
729 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
730 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
731 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
732 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
733 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
734 else i_type = "bad type";
735 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
736 fprintf(out, "%sMode: %04o Flags: 0x%x\n",
737 prefix, inode->i_mode & 0777, inode->i_flags);
738 if (is_large_inode && large_inode->i_extra_isize >= 24) {
739 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
740 prefix, inode->i_generation, large_inode->i_version_hi,
741 inode->osd1.linux1.l_i_version);
742 } else {
743 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
744 inode->i_generation, inode->osd1.linux1.l_i_version);
745 }
746 fprintf(out, "%sUser: %5d Group: %5d Size: ",
747 prefix, inode_uid(*inode), inode_gid(*inode));
748 if (LINUX_S_ISREG(inode->i_mode))
749 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
750 else
751 fprintf(out, "%d\n", inode->i_size);
752 if (os == EXT2_OS_HURD)
753 fprintf(out,
754 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
755 prefix,
756 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
757 inode->osd1.hurd1.h_i_translator);
758 else
759 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n",
760 prefix,
761 inode->i_file_acl | ((long long)
762 (inode->osd2.linux2.l_i_file_acl_high) << 32),
763 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
764 if (os == EXT2_OS_LINUX)
765 fprintf(out, "%sLinks: %d Blockcount: %llu\n",
766 prefix, inode->i_links_count,
767 (((unsigned long long)
768 inode->osd2.linux2.l_i_blocks_hi << 32)) +
769 inode->i_blocks);
770 else
771 fprintf(out, "%sLinks: %d Blockcount: %u\n",
772 prefix, inode->i_links_count, inode->i_blocks);
773 switch (os) {
774 case EXT2_OS_HURD:
775 frag = inode->osd2.hurd2.h_i_frag;
776 fsize = inode->osd2.hurd2.h_i_fsize;
777 break;
778 default:
779 frag = fsize = 0;
780 }
781 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
782 prefix, inode->i_faddr, frag, fsize);
783 if (is_large_inode && large_inode->i_extra_isize >= 24) {
784 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
785 inode->i_ctime, large_inode->i_ctime_extra,
786 time_to_string(inode->i_ctime));
787 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
788 inode->i_atime, large_inode->i_atime_extra,
789 time_to_string(inode->i_atime));
790 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
791 inode->i_mtime, large_inode->i_mtime_extra,
792 time_to_string(inode->i_mtime));
793 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
794 large_inode->i_crtime, large_inode->i_crtime_extra,
795 time_to_string(large_inode->i_crtime));
796 } else {
797 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
798 time_to_string(inode->i_ctime));
799 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
800 time_to_string(inode->i_atime));
801 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
802 time_to_string(inode->i_mtime));
803 }
804 if (inode->i_dtime)
805 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
806 time_to_string(inode->i_dtime));
807 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
808 internal_dump_inode_extra(out, prefix, inode_num,
809 (struct ext2_inode_large *) inode);
810 dump_inode_attributes(out, inode_num);
811 if (current_fs->super->s_creator_os == EXT2_OS_LINUX &&
812 current_fs->super->s_feature_ro_compat &
813 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) {
814 __u32 crc = inode->i_checksum_lo;
815 if (is_large_inode &&
816 large_inode->i_extra_isize >=
817 (offsetof(struct ext2_inode_large,
818 i_checksum_hi) -
819 EXT2_GOOD_OLD_INODE_SIZE))
820 crc |= ((__u32)large_inode->i_checksum_hi) << 16;
821 fprintf(out, "Inode checksum: 0x%08x\n", crc);
822 }
823
824 if (LINUX_S_ISLNK(inode->i_mode) &&
825 ext2fs_inode_data_blocks(current_fs, inode) == 0)
826 dump_fast_link(out, inode_num, inode, prefix);
827 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
828 int major, minor;
829 const char *devnote;
830
831 if (inode->i_block[0]) {
832 major = (inode->i_block[0] >> 8) & 255;
833 minor = inode->i_block[0] & 255;
834 devnote = "";
835 } else {
836 major = (inode->i_block[1] & 0xfff00) >> 8;
837 minor = ((inode->i_block[1] & 0xff) |
838 ((inode->i_block[1] >> 12) & 0xfff00));
839 devnote = "(New-style) ";
840 }
841 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
842 devnote, major, minor, major, minor);
843 } else if (do_dump_blocks) {
844 if (inode->i_flags & EXT4_EXTENTS_FL)
845 dump_extents(out, prefix, inode_num,
846 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
847 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
848 dump_inline_data(out, prefix, inode_num);
849 else
850 dump_blocks(out, prefix, inode_num);
851 }
852 }
853
854 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
855 {
856 FILE *out;
857
858 out = open_pager();
859 internal_dump_inode(out, "", inode_num, inode, 1);
860 close_pager(out);
861 }
862
863 void do_stat(int argc, char *argv[])
864 {
865 ext2_ino_t inode;
866 struct ext2_inode * inode_buf;
867
868 if (check_fs_open(argv[0]))
869 return;
870
871 inode_buf = (struct ext2_inode *)
872 malloc(EXT2_INODE_SIZE(current_fs->super));
873 if (!inode_buf) {
874 fprintf(stderr, "do_stat: can't allocate buffer\n");
875 return;
876 }
877
878 if (common_inode_args_process(argc, argv, &inode, 0)) {
879 free(inode_buf);
880 return;
881 }
882
883 if (debugfs_read_inode_full(inode, inode_buf, argv[0],
884 EXT2_INODE_SIZE(current_fs->super))) {
885 free(inode_buf);
886 return;
887 }
888
889 dump_inode(inode, inode_buf);
890 free(inode_buf);
891 return;
892 }
893
894 void do_dump_extents(int argc, char **argv)
895 {
896 struct ext2_inode inode;
897 ext2_ino_t ino;
898 FILE *out;
899 int c, flags = 0;
900 int logical_width;
901 int physical_width;
902
903 reset_getopt();
904 while ((c = getopt(argc, argv, "nl")) != EOF) {
905 switch (c) {
906 case 'n':
907 flags |= DUMP_NODE_EXTENTS;
908 break;
909 case 'l':
910 flags |= DUMP_LEAF_EXTENTS;
911 break;
912 }
913 }
914
915 if (argc != optind + 1) {
916 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
917 return;
918 }
919
920 if (flags == 0)
921 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
922 flags |= DUMP_EXTENT_TABLE;
923
924 if (check_fs_open(argv[0]))
925 return;
926
927 ino = string_to_inode(argv[optind]);
928 if (ino == 0)
929 return;
930
931 if (debugfs_read_inode(ino, &inode, argv[0]))
932 return;
933
934 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
935 fprintf(stderr, "%s: does not uses extent block maps\n",
936 argv[optind]);
937 return;
938 }
939
940 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
941 current_fs->blocksize) + 1;
942 if (logical_width < 5)
943 logical_width = 5;
944 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
945 if (physical_width < 5)
946 physical_width = 5;
947
948 out = open_pager();
949 dump_extents(out, "", ino, flags, logical_width, physical_width);
950 close_pager(out);
951 return;
952 }
953
954 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
955 blk64_t *blocknr,
956 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
957 blk64_t ref_block EXT2FS_ATTR((unused)),
958 int ref_offset EXT2FS_ATTR((unused)),
959 void *private EXT2FS_ATTR((unused)))
960 {
961 printf("%llu ", *blocknr);
962 return 0;
963 }
964
965 void do_blocks(int argc, char *argv[])
966 {
967 ext2_ino_t inode;
968
969 if (check_fs_open(argv[0]))
970 return;
971
972 if (common_inode_args_process(argc, argv, &inode, 0)) {
973 return;
974 }
975
976 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
977 print_blocks_proc, NULL);
978 fputc('\n', stdout);
979 return;
980 }
981
982 void do_chroot(int argc, char *argv[])
983 {
984 ext2_ino_t inode;
985 int retval;
986
987 if (common_inode_args_process(argc, argv, &inode, 0))
988 return;
989
990 retval = ext2fs_check_directory(current_fs, inode);
991 if (retval) {
992 com_err(argv[1], retval, 0);
993 return;
994 }
995 root = inode;
996 }
997
998 #ifndef READ_ONLY
999 void do_clri(int argc, char *argv[])
1000 {
1001 ext2_ino_t inode;
1002 struct ext2_inode inode_buf;
1003
1004 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1005 return;
1006
1007 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1008 return;
1009 memset(&inode_buf, 0, sizeof(inode_buf));
1010 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1011 return;
1012 }
1013
1014 void do_freei(int argc, char *argv[])
1015 {
1016 unsigned int len = 1;
1017 int err = 0;
1018 ext2_ino_t inode;
1019
1020 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1021 CHECK_FS_RW | CHECK_FS_BITMAPS))
1022 return;
1023 if (check_fs_read_write(argv[0]))
1024 return;
1025
1026 inode = string_to_inode(argv[1]);
1027 if (!inode)
1028 return;
1029
1030 if (argc == 3) {
1031 len = parse_ulong(argv[2], argv[0], "length", &err);
1032 if (err)
1033 return;
1034 }
1035
1036 if (len == 1 &&
1037 !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1038 com_err(argv[0], 0, "Warning: inode already clear");
1039 while (len-- > 0)
1040 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1041 ext2fs_mark_ib_dirty(current_fs);
1042 }
1043
1044 void do_seti(int argc, char *argv[])
1045 {
1046 unsigned int len = 1;
1047 int err = 0;
1048 ext2_ino_t inode;
1049
1050 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1051 CHECK_FS_RW | CHECK_FS_BITMAPS))
1052 return;
1053 if (check_fs_read_write(argv[0]))
1054 return;
1055
1056 inode = string_to_inode(argv[1]);
1057 if (!inode)
1058 return;
1059
1060 if (argc == 3) {
1061 len = parse_ulong(argv[2], argv[0], "length", &err);
1062 if (err)
1063 return;
1064 }
1065
1066 if ((len == 1) &&
1067 ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1068 com_err(argv[0], 0, "Warning: inode already set");
1069 while (len-- > 0)
1070 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1071 ext2fs_mark_ib_dirty(current_fs);
1072 }
1073 #endif /* READ_ONLY */
1074
1075 void do_testi(int argc, char *argv[])
1076 {
1077 ext2_ino_t inode;
1078
1079 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1080 return;
1081
1082 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1083 printf("Inode %u is marked in use\n", inode);
1084 else
1085 printf("Inode %u is not in use\n", inode);
1086 }
1087
1088 #ifndef READ_ONLY
1089 void do_freeb(int argc, char *argv[])
1090 {
1091 blk64_t block;
1092 blk64_t count = 1;
1093
1094 if (common_block_args_process(argc, argv, &block, &count))
1095 return;
1096 if (check_fs_read_write(argv[0]))
1097 return;
1098 while (count-- > 0) {
1099 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1100 com_err(argv[0], 0, "Warning: block %llu already clear",
1101 block);
1102 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1103 block++;
1104 }
1105 ext2fs_mark_bb_dirty(current_fs);
1106 }
1107
1108 void do_setb(int argc, char *argv[])
1109 {
1110 blk64_t block;
1111 blk64_t count = 1;
1112
1113 if (common_block_args_process(argc, argv, &block, &count))
1114 return;
1115 if (check_fs_read_write(argv[0]))
1116 return;
1117 while (count-- > 0) {
1118 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1119 com_err(argv[0], 0, "Warning: block %llu already set",
1120 block);
1121 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1122 block++;
1123 }
1124 ext2fs_mark_bb_dirty(current_fs);
1125 }
1126 #endif /* READ_ONLY */
1127
1128 void do_testb(int argc, char *argv[])
1129 {
1130 blk64_t block;
1131 blk64_t count = 1;
1132
1133 if (common_block_args_process(argc, argv, &block, &count))
1134 return;
1135 while (count-- > 0) {
1136 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1137 printf("Block %llu marked in use\n", block);
1138 else
1139 printf("Block %llu not in use\n", block);
1140 block++;
1141 }
1142 }
1143
1144 #ifndef READ_ONLY
1145 static void modify_u8(char *com, const char *prompt,
1146 const char *format, __u8 *val)
1147 {
1148 char buf[200];
1149 unsigned long v;
1150 char *tmp;
1151
1152 sprintf(buf, format, *val);
1153 printf("%30s [%s] ", prompt, buf);
1154 if (!fgets(buf, sizeof(buf), stdin))
1155 return;
1156 if (buf[strlen (buf) - 1] == '\n')
1157 buf[strlen (buf) - 1] = '\0';
1158 if (!buf[0])
1159 return;
1160 v = strtoul(buf, &tmp, 0);
1161 if (*tmp)
1162 com_err(com, 0, "Bad value - %s", buf);
1163 else
1164 *val = v;
1165 }
1166
1167 static void modify_u16(char *com, const char *prompt,
1168 const char *format, __u16 *val)
1169 {
1170 char buf[200];
1171 unsigned long v;
1172 char *tmp;
1173
1174 sprintf(buf, format, *val);
1175 printf("%30s [%s] ", prompt, buf);
1176 if (!fgets(buf, sizeof(buf), stdin))
1177 return;
1178 if (buf[strlen (buf) - 1] == '\n')
1179 buf[strlen (buf) - 1] = '\0';
1180 if (!buf[0])
1181 return;
1182 v = strtoul(buf, &tmp, 0);
1183 if (*tmp)
1184 com_err(com, 0, "Bad value - %s", buf);
1185 else
1186 *val = v;
1187 }
1188
1189 static void modify_u32(char *com, const char *prompt,
1190 const char *format, __u32 *val)
1191 {
1192 char buf[200];
1193 unsigned long v;
1194 char *tmp;
1195
1196 sprintf(buf, format, *val);
1197 printf("%30s [%s] ", prompt, buf);
1198 if (!fgets(buf, sizeof(buf), stdin))
1199 return;
1200 if (buf[strlen (buf) - 1] == '\n')
1201 buf[strlen (buf) - 1] = '\0';
1202 if (!buf[0])
1203 return;
1204 v = strtoul(buf, &tmp, 0);
1205 if (*tmp)
1206 com_err(com, 0, "Bad value - %s", buf);
1207 else
1208 *val = v;
1209 }
1210
1211
1212 void do_modify_inode(int argc, char *argv[])
1213 {
1214 struct ext2_inode inode;
1215 ext2_ino_t inode_num;
1216 int i;
1217 unsigned char *frag, *fsize;
1218 char buf[80];
1219 int os;
1220 const char *hex_format = "0x%x";
1221 const char *octal_format = "0%o";
1222 const char *decimal_format = "%d";
1223 const char *unsignedlong_format = "%lu";
1224
1225 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1226 return;
1227
1228 os = current_fs->super->s_creator_os;
1229
1230 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1231 return;
1232
1233 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1234 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1235 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1236 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1237 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1238 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1239 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1240 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1241 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1242 if (os == EXT2_OS_LINUX)
1243 modify_u16(argv[0], "Block count high", unsignedlong_format,
1244 &inode.osd2.linux2.l_i_blocks_hi);
1245 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1246 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1247 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1248 #if 0
1249 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1250 #endif
1251 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1252 if (LINUX_S_ISDIR(inode.i_mode))
1253 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1254 else
1255 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1256
1257 if (os == EXT2_OS_HURD)
1258 modify_u32(argv[0], "Translator Block",
1259 decimal_format, &inode.osd1.hurd1.h_i_translator);
1260
1261 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1262 switch (os) {
1263 case EXT2_OS_HURD:
1264 frag = &inode.osd2.hurd2.h_i_frag;
1265 fsize = &inode.osd2.hurd2.h_i_fsize;
1266 break;
1267 default:
1268 frag = fsize = 0;
1269 }
1270 if (frag)
1271 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1272 if (fsize)
1273 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1274
1275 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1276 sprintf(buf, "Direct Block #%d", i);
1277 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1278 }
1279 modify_u32(argv[0], "Indirect Block", decimal_format,
1280 &inode.i_block[EXT2_IND_BLOCK]);
1281 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1282 &inode.i_block[EXT2_DIND_BLOCK]);
1283 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1284 &inode.i_block[EXT2_TIND_BLOCK]);
1285 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1286 return;
1287 }
1288 #endif /* READ_ONLY */
1289
1290 void do_change_working_dir(int argc, char *argv[])
1291 {
1292 ext2_ino_t inode;
1293 int retval;
1294
1295 if (common_inode_args_process(argc, argv, &inode, 0))
1296 return;
1297
1298 retval = ext2fs_check_directory(current_fs, inode);
1299 if (retval) {
1300 com_err(argv[1], retval, 0);
1301 return;
1302 }
1303 cwd = inode;
1304 return;
1305 }
1306
1307 void do_print_working_directory(int argc, char *argv[])
1308 {
1309 int retval;
1310 char *pathname = NULL;
1311
1312 if (common_args_process(argc, argv, 1, 1,
1313 "print_working_directory", "", 0))
1314 return;
1315
1316 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1317 if (retval) {
1318 com_err(argv[0], retval,
1319 "while trying to get pathname of cwd");
1320 }
1321 printf("[pwd] INODE: %6u PATH: %s\n",
1322 cwd, pathname ? pathname : "NULL");
1323 if (pathname) {
1324 free(pathname);
1325 pathname = NULL;
1326 }
1327 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1328 if (retval) {
1329 com_err(argv[0], retval,
1330 "while trying to get pathname of root");
1331 }
1332 printf("[root] INODE: %6u PATH: %s\n",
1333 root, pathname ? pathname : "NULL");
1334 if (pathname) {
1335 free(pathname);
1336 pathname = NULL;
1337 }
1338 return;
1339 }
1340
1341 #ifndef READ_ONLY
1342 static void make_link(char *sourcename, char *destname)
1343 {
1344 ext2_ino_t ino;
1345 struct ext2_inode inode;
1346 int retval;
1347 ext2_ino_t dir;
1348 char *dest, *cp, *base_name;
1349
1350 /*
1351 * Get the source inode
1352 */
1353 ino = string_to_inode(sourcename);
1354 if (!ino)
1355 return;
1356 base_name = strrchr(sourcename, '/');
1357 if (base_name)
1358 base_name++;
1359 else
1360 base_name = sourcename;
1361 /*
1362 * Figure out the destination. First see if it exists and is
1363 * a directory.
1364 */
1365 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1366 dest = base_name;
1367 else {
1368 /*
1369 * OK, it doesn't exist. See if it is
1370 * '<dir>/basename' or 'basename'
1371 */
1372 cp = strrchr(destname, '/');
1373 if (cp) {
1374 *cp = 0;
1375 dir = string_to_inode(destname);
1376 if (!dir)
1377 return;
1378 dest = cp+1;
1379 } else {
1380 dir = cwd;
1381 dest = destname;
1382 }
1383 }
1384
1385 if (debugfs_read_inode(ino, &inode, sourcename))
1386 return;
1387
1388 retval = ext2fs_link(current_fs, dir, dest, ino,
1389 ext2_file_type(inode.i_mode));
1390 if (retval)
1391 com_err("make_link", retval, 0);
1392 return;
1393 }
1394
1395
1396 void do_link(int argc, char *argv[])
1397 {
1398 if (common_args_process(argc, argv, 3, 3, "link",
1399 "<source file> <dest_name>", CHECK_FS_RW))
1400 return;
1401
1402 make_link(argv[1], argv[2]);
1403 }
1404
1405 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1406 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1407 blk64_t ref_block EXT2FS_ATTR((unused)),
1408 int ref_offset EXT2FS_ATTR((unused)),
1409 void *private EXT2FS_ATTR((unused)))
1410 {
1411 blk64_t block;
1412
1413 block = *blocknr;
1414 ext2fs_block_alloc_stats2(fs, block, +1);
1415 return 0;
1416 }
1417
1418 void do_undel(int argc, char *argv[])
1419 {
1420 ext2_ino_t ino;
1421 struct ext2_inode inode;
1422
1423 if (common_args_process(argc, argv, 2, 3, "undelete",
1424 "<inode_num> [dest_name]",
1425 CHECK_FS_RW | CHECK_FS_BITMAPS))
1426 return;
1427
1428 ino = string_to_inode(argv[1]);
1429 if (!ino)
1430 return;
1431
1432 if (debugfs_read_inode(ino, &inode, argv[1]))
1433 return;
1434
1435 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1436 com_err(argv[1], 0, "Inode is not marked as deleted");
1437 return;
1438 }
1439
1440 /*
1441 * XXX this function doesn't handle changing the links count on the
1442 * parent directory when undeleting a directory.
1443 */
1444 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1445 inode.i_dtime = 0;
1446
1447 if (debugfs_write_inode(ino, &inode, argv[0]))
1448 return;
1449
1450 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1451 mark_blocks_proc, NULL);
1452
1453 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1454
1455 if (argc > 2)
1456 make_link(argv[1], argv[2]);
1457 }
1458
1459 static void unlink_file_by_name(char *filename)
1460 {
1461 int retval;
1462 ext2_ino_t dir;
1463 char *base_name;
1464
1465 base_name = strrchr(filename, '/');
1466 if (base_name) {
1467 *base_name++ = '\0';
1468 dir = string_to_inode(filename);
1469 if (!dir)
1470 return;
1471 } else {
1472 dir = cwd;
1473 base_name = filename;
1474 }
1475 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1476 if (retval)
1477 com_err("unlink_file_by_name", retval, 0);
1478 return;
1479 }
1480
1481 void do_unlink(int argc, char *argv[])
1482 {
1483 if (common_args_process(argc, argv, 2, 2, "link",
1484 "<pathname>", CHECK_FS_RW))
1485 return;
1486
1487 unlink_file_by_name(argv[1]);
1488 }
1489 #endif /* READ_ONLY */
1490
1491 void do_find_free_block(int argc, char *argv[])
1492 {
1493 blk64_t free_blk, goal, first_free = 0;
1494 int count;
1495 errcode_t retval;
1496 char *tmp;
1497
1498 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1499 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1500 return;
1501 }
1502 if (check_fs_open(argv[0]))
1503 return;
1504
1505 if (argc > 1) {
1506 count = strtol(argv[1],&tmp,0);
1507 if (*tmp) {
1508 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1509 return;
1510 }
1511 } else
1512 count = 1;
1513
1514 if (argc > 2) {
1515 goal = strtol(argv[2], &tmp, 0);
1516 if (*tmp) {
1517 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1518 return;
1519 }
1520 }
1521 else
1522 goal = current_fs->super->s_first_data_block;
1523
1524 printf("Free blocks found: ");
1525 free_blk = goal - 1;
1526 while (count-- > 0) {
1527 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1528 &free_blk);
1529 if (first_free) {
1530 if (first_free == free_blk)
1531 break;
1532 } else
1533 first_free = free_blk;
1534 if (retval) {
1535 com_err("ext2fs_new_block", retval, 0);
1536 return;
1537 } else
1538 printf("%llu ", free_blk);
1539 }
1540 printf("\n");
1541 }
1542
1543 void do_find_free_inode(int argc, char *argv[])
1544 {
1545 ext2_ino_t free_inode, dir;
1546 int mode;
1547 int retval;
1548 char *tmp;
1549
1550 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1551 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1552 return;
1553 }
1554 if (check_fs_open(argv[0]))
1555 return;
1556
1557 if (argc > 1) {
1558 dir = strtol(argv[1], &tmp, 0);
1559 if (*tmp) {
1560 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1561 return;
1562 }
1563 }
1564 else
1565 dir = root;
1566 if (argc > 2) {
1567 mode = strtol(argv[2], &tmp, 0);
1568 if (*tmp) {
1569 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1570 return;
1571 }
1572 } else
1573 mode = 010755;
1574
1575 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1576 if (retval)
1577 com_err("ext2fs_new_inode", retval, 0);
1578 else
1579 printf("Free inode found: %u\n", free_inode);
1580 }
1581
1582 #ifndef READ_ONLY
1583 void do_write(int argc, char *argv[])
1584 {
1585 errcode_t retval;
1586
1587 if (common_args_process(argc, argv, 3, 3, "write",
1588 "<native file> <new file>", CHECK_FS_RW))
1589 return;
1590
1591 retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1592 if (retval)
1593 com_err(argv[0], retval, 0);
1594 }
1595
1596 void do_mknod(int argc, char *argv[])
1597 {
1598 unsigned long mode, major, minor;
1599 errcode_t retval;
1600 int filetype, nr;
1601 struct stat st;
1602
1603 if (check_fs_open(argv[0]))
1604 return;
1605 if (argc < 3 || argv[2][1]) {
1606 usage:
1607 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1608 return;
1609 }
1610
1611 mode = minor = major = 0;
1612 switch (argv[2][0]) {
1613 case 'p':
1614 st.st_mode = S_IFIFO;
1615 nr = 3;
1616 break;
1617 case 'c':
1618 st.st_mode = S_IFCHR;
1619 nr = 5;
1620 break;
1621 case 'b':
1622 st.st_mode = S_IFBLK;
1623 nr = 5;
1624 break;
1625 default:
1626 nr = 0;
1627 }
1628
1629 if (nr == 5) {
1630 major = strtoul(argv[3], argv+3, 0);
1631 minor = strtoul(argv[4], argv+4, 0);
1632 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1633 nr = 0;
1634 }
1635
1636 if (argc != nr)
1637 goto usage;
1638
1639 st.st_rdev = makedev(major, minor);
1640 retval = do_mknod_internal(current_fs, cwd, argv[1], &st);
1641 if (retval)
1642 com_err(argv[0], retval, 0);
1643 }
1644
1645 void do_mkdir(int argc, char *argv[])
1646 {
1647 errcode_t retval;
1648
1649 if (common_args_process(argc, argv, 2, 2, "mkdir",
1650 "<filename>", CHECK_FS_RW))
1651 return;
1652
1653 retval = do_mkdir_internal(current_fs, cwd, argv[1], NULL, root);
1654 if (retval)
1655 com_err(argv[0], retval, 0);
1656
1657 }
1658
1659 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1660 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1661 blk64_t ref_block EXT2FS_ATTR((unused)),
1662 int ref_offset EXT2FS_ATTR((unused)),
1663 void *private EXT2FS_ATTR((unused)))
1664 {
1665 blk64_t block;
1666
1667 block = *blocknr;
1668 ext2fs_block_alloc_stats2(fs, block, -1);
1669 return 0;
1670 }
1671
1672 static void kill_file_by_inode(ext2_ino_t inode)
1673 {
1674 struct ext2_inode inode_buf;
1675
1676 if (debugfs_read_inode(inode, &inode_buf, 0))
1677 return;
1678 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1679 if (debugfs_write_inode(inode, &inode_buf, 0))
1680 return;
1681 if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1682 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1683 NULL, release_blocks_proc, NULL);
1684 }
1685 printf("\n");
1686 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1687 LINUX_S_ISDIR(inode_buf.i_mode));
1688 }
1689
1690
1691 void do_kill_file(int argc, char *argv[])
1692 {
1693 ext2_ino_t inode_num;
1694
1695 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1696 return;
1697
1698 kill_file_by_inode(inode_num);
1699 }
1700
1701 void do_rm(int argc, char *argv[])
1702 {
1703 int retval;
1704 ext2_ino_t inode_num;
1705 struct ext2_inode inode;
1706
1707 if (common_args_process(argc, argv, 2, 2, "rm",
1708 "<filename>", CHECK_FS_RW))
1709 return;
1710
1711 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1712 if (retval) {
1713 com_err(argv[0], retval, "while trying to resolve filename");
1714 return;
1715 }
1716
1717 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1718 return;
1719
1720 if (LINUX_S_ISDIR(inode.i_mode)) {
1721 com_err(argv[0], 0, "file is a directory");
1722 return;
1723 }
1724
1725 --inode.i_links_count;
1726 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1727 return;
1728
1729 unlink_file_by_name(argv[1]);
1730 if (inode.i_links_count == 0)
1731 kill_file_by_inode(inode_num);
1732 }
1733
1734 struct rd_struct {
1735 ext2_ino_t parent;
1736 int empty;
1737 };
1738
1739 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1740 int entry EXT2FS_ATTR((unused)),
1741 struct ext2_dir_entry *dirent,
1742 int offset EXT2FS_ATTR((unused)),
1743 int blocksize EXT2FS_ATTR((unused)),
1744 char *buf EXT2FS_ATTR((unused)),
1745 void *private)
1746 {
1747 struct rd_struct *rds = (struct rd_struct *) private;
1748
1749 if (dirent->inode == 0)
1750 return 0;
1751 if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1752 return 0;
1753 if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1754 (dirent->name[1] == '.')) {
1755 rds->parent = dirent->inode;
1756 return 0;
1757 }
1758 rds->empty = 0;
1759 return 0;
1760 }
1761
1762 void do_rmdir(int argc, char *argv[])
1763 {
1764 int retval;
1765 ext2_ino_t inode_num;
1766 struct ext2_inode inode;
1767 struct rd_struct rds;
1768
1769 if (common_args_process(argc, argv, 2, 2, "rmdir",
1770 "<filename>", CHECK_FS_RW))
1771 return;
1772
1773 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1774 if (retval) {
1775 com_err(argv[0], retval, "while trying to resolve filename");
1776 return;
1777 }
1778
1779 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1780 return;
1781
1782 if (!LINUX_S_ISDIR(inode.i_mode)) {
1783 com_err(argv[0], 0, "file is not a directory");
1784 return;
1785 }
1786
1787 rds.parent = 0;
1788 rds.empty = 1;
1789
1790 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1791 0, rmdir_proc, &rds);
1792 if (retval) {
1793 com_err(argv[0], retval, "while iterating over directory");
1794 return;
1795 }
1796 if (rds.empty == 0) {
1797 com_err(argv[0], 0, "directory not empty");
1798 return;
1799 }
1800
1801 inode.i_links_count = 0;
1802 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1803 return;
1804
1805 unlink_file_by_name(argv[1]);
1806 kill_file_by_inode(inode_num);
1807
1808 if (rds.parent) {
1809 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1810 return;
1811 if (inode.i_links_count > 1)
1812 inode.i_links_count--;
1813 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1814 return;
1815 }
1816 }
1817 #endif /* READ_ONLY */
1818
1819 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1820 char *argv[] EXT2FS_ATTR((unused)))
1821 {
1822 if (current_fs)
1823 printf("Open mode: read-%s\n",
1824 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1825 printf("Filesystem in use: %s\n",
1826 current_fs ? current_fs->device_name : "--none--");
1827 }
1828
1829 #ifndef READ_ONLY
1830 void do_expand_dir(int argc, char *argv[])
1831 {
1832 ext2_ino_t inode;
1833 int retval;
1834
1835 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1836 return;
1837
1838 retval = ext2fs_expand_dir(current_fs, inode);
1839 if (retval)
1840 com_err("ext2fs_expand_dir", retval, 0);
1841 return;
1842 }
1843
1844 void do_features(int argc, char *argv[])
1845 {
1846 int i;
1847
1848 if (check_fs_open(argv[0]))
1849 return;
1850
1851 if ((argc != 1) && check_fs_read_write(argv[0]))
1852 return;
1853 for (i=1; i < argc; i++) {
1854 if (e2p_edit_feature(argv[i],
1855 &current_fs->super->s_feature_compat, 0))
1856 com_err(argv[0], 0, "Unknown feature: %s\n",
1857 argv[i]);
1858 else
1859 ext2fs_mark_super_dirty(current_fs);
1860 }
1861 print_features(current_fs->super, stdout);
1862 }
1863 #endif /* READ_ONLY */
1864
1865 void do_bmap(int argc, char *argv[])
1866 {
1867 ext2_ino_t ino;
1868 blk64_t blk, pblk;
1869 int err;
1870 errcode_t errcode;
1871
1872 if (common_args_process(argc, argv, 3, 3, argv[0],
1873 "<file> logical_blk", 0))
1874 return;
1875
1876 ino = string_to_inode(argv[1]);
1877 if (!ino)
1878 return;
1879 err = strtoblk(argv[0], argv[2], "logical block", &blk);
1880 if (err)
1881 return;
1882
1883 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1884 if (errcode) {
1885 com_err(argv[0], errcode,
1886 "while mapping logical block %llu\n", blk);
1887 return;
1888 }
1889 printf("%llu\n", pblk);
1890 }
1891
1892 void do_imap(int argc, char *argv[])
1893 {
1894 ext2_ino_t ino;
1895 unsigned long group, block, block_nr, offset;
1896
1897 if (common_args_process(argc, argv, 2, 2, argv[0],
1898 "<file>", 0))
1899 return;
1900 ino = string_to_inode(argv[1]);
1901 if (!ino)
1902 return;
1903
1904 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1905 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1906 EXT2_INODE_SIZE(current_fs->super);
1907 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1908 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
1909 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1910 group);
1911 return;
1912 }
1913 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
1914 block;
1915 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1916
1917 printf("Inode %d is part of block group %lu\n"
1918 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1919 block_nr, offset);
1920
1921 }
1922
1923 void do_idump(int argc, char *argv[])
1924 {
1925 ext2_ino_t ino;
1926 char *buf;
1927 errcode_t err;
1928 int isize;
1929
1930 if (common_args_process(argc, argv, 2, 2, argv[0],
1931 "<file>", 0))
1932 return;
1933 ino = string_to_inode(argv[1]);
1934 if (!ino)
1935 return;
1936
1937 isize = EXT2_INODE_SIZE(current_fs->super);
1938 err = ext2fs_get_mem(isize, &buf);
1939 if (err) {
1940 com_err(argv[0], err, "while allocating memory");
1941 return;
1942 }
1943
1944 err = ext2fs_read_inode_full(current_fs, ino,
1945 (struct ext2_inode *)buf, isize);
1946 if (err) {
1947 com_err(argv[0], err, "while reading inode %d", ino);
1948 goto err;
1949 }
1950
1951 do_byte_hexdump(stdout, buf, isize);
1952 err:
1953 ext2fs_free_mem(&buf);
1954 }
1955
1956 #ifndef READ_ONLY
1957 void do_set_current_time(int argc, char *argv[])
1958 {
1959 time_t now;
1960
1961 if (common_args_process(argc, argv, 2, 2, argv[0],
1962 "<time>", 0))
1963 return;
1964
1965 now = string_to_time(argv[1]);
1966 if (now == ((time_t) -1)) {
1967 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
1968 argv[1]);
1969 return;
1970
1971 } else {
1972 printf("Setting current time to %s\n", time_to_string(now));
1973 current_fs->now = now;
1974 }
1975 }
1976 #endif /* READ_ONLY */
1977
1978 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
1979 {
1980 int compat, bit, ret;
1981 unsigned int feature_mask;
1982
1983 if (name) {
1984 if (feature_type == E2P_FS_FEATURE)
1985 ret = e2p_string2feature(name, &compat, &feature_mask);
1986 else
1987 ret = e2p_jrnl_string2feature(name, &compat,
1988 &feature_mask);
1989 if (ret)
1990 return ret;
1991
1992 if (!(supp[compat] & feature_mask))
1993 return 1;
1994 } else {
1995 for (compat = 0; compat < 3; compat++) {
1996 for (bit = 0, feature_mask = 1; bit < 32;
1997 bit++, feature_mask <<= 1) {
1998 if (supp[compat] & feature_mask) {
1999 if (feature_type == E2P_FS_FEATURE)
2000 fprintf(stdout, " %s",
2001 e2p_feature2string(compat,
2002 feature_mask));
2003 else
2004 fprintf(stdout, " %s",
2005 e2p_jrnl_feature2string(compat,
2006 feature_mask));
2007 }
2008 }
2009 }
2010 fprintf(stdout, "\n");
2011 }
2012
2013 return 0;
2014 }
2015
2016 void do_supported_features(int argc, char *argv[])
2017 {
2018 int ret;
2019 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2020 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2021 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2022 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2023 JFS_KNOWN_INCOMPAT_FEATURES,
2024 JFS_KNOWN_ROCOMPAT_FEATURES };
2025
2026 if (argc > 1) {
2027 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2028 if (ret) {
2029 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2030 argv[1]);
2031 }
2032 if (ret)
2033 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2034 else
2035 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2036 } else {
2037 fprintf(stdout, "Supported features:");
2038 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2039 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2040 }
2041 }
2042
2043 #ifndef READ_ONLY
2044 void do_punch(int argc, char *argv[])
2045 {
2046 ext2_ino_t ino;
2047 blk64_t start, end;
2048 int err;
2049 errcode_t errcode;
2050
2051 if (common_args_process(argc, argv, 3, 4, argv[0],
2052 "<file> start_blk [end_blk]",
2053 CHECK_FS_RW | CHECK_FS_BITMAPS))
2054 return;
2055
2056 ino = string_to_inode(argv[1]);
2057 if (!ino)
2058 return;
2059 err = strtoblk(argv[0], argv[2], "logical block", &start);
2060 if (err)
2061 return;
2062 if (argc == 4) {
2063 err = strtoblk(argv[0], argv[3], "logical block", &end);
2064 if (err)
2065 return;
2066 } else
2067 end = ~0;
2068
2069 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2070
2071 if (errcode) {
2072 com_err(argv[0], errcode,
2073 "while truncating inode %u from %llu to %llu\n", ino,
2074 (unsigned long long) start, (unsigned long long) end);
2075 return;
2076 }
2077 }
2078 #endif /* READ_ONLY */
2079
2080 void do_symlink(int argc, char *argv[])
2081 {
2082 errcode_t retval;
2083
2084 if (common_args_process(argc, argv, 3, 3, "symlink",
2085 "<filename> <target>", CHECK_FS_RW))
2086 return;
2087
2088 retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2089 if (retval)
2090 com_err(argv[0], retval, 0);
2091
2092 }
2093
2094 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2095 {
2096 #if CONFIG_MMP
2097 struct ext2_super_block *sb;
2098 struct mmp_struct *mmp_s;
2099 time_t t;
2100 errcode_t retval = 0;
2101
2102 if (check_fs_open(argv[0]))
2103 return;
2104
2105 sb = current_fs->super;
2106
2107 if (current_fs->mmp_buf == NULL) {
2108 retval = ext2fs_get_mem(current_fs->blocksize,
2109 &current_fs->mmp_buf);
2110 if (retval) {
2111 com_err(argv[0], retval, "allocating MMP buffer.\n");
2112 return;
2113 }
2114 }
2115
2116 mmp_s = current_fs->mmp_buf;
2117
2118 retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2119 current_fs->mmp_buf);
2120 if (retval) {
2121 com_err(argv[0], retval, "reading MMP block.\n");
2122 return;
2123 }
2124
2125 t = mmp_s->mmp_time;
2126 fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2127 fprintf(stdout, "update_interval: %d\n",
2128 current_fs->super->s_mmp_update_interval);
2129 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2130 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2131 fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2132 fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2133 fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2134 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2135 fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2136 #else
2137 fprintf(stdout, "MMP is unsupported, please recompile with "
2138 "--enable-mmp\n");
2139 #endif
2140 }
2141
2142 static int source_file(const char *cmd_file, int ss_idx)
2143 {
2144 FILE *f;
2145 char buf[BUFSIZ];
2146 char *cp;
2147 int exit_status = 0;
2148 int retval;
2149
2150 if (strcmp(cmd_file, "-") == 0)
2151 f = stdin;
2152 else {
2153 f = fopen(cmd_file, "r");
2154 if (!f) {
2155 perror(cmd_file);
2156 exit(1);
2157 }
2158 }
2159 fflush(stdout);
2160 fflush(stderr);
2161 setbuf(stdout, NULL);
2162 setbuf(stderr, NULL);
2163 while (!feof(f)) {
2164 if (fgets(buf, sizeof(buf), f) == NULL)
2165 break;
2166 cp = strchr(buf, '\n');
2167 if (cp)
2168 *cp = 0;
2169 cp = strchr(buf, '\r');
2170 if (cp)
2171 *cp = 0;
2172 printf("debugfs: %s\n", buf);
2173 retval = ss_execute_line(ss_idx, buf);
2174 if (retval) {
2175 ss_perror(ss_idx, retval, buf);
2176 exit_status++;
2177 }
2178 }
2179 if (f != stdin)
2180 fclose(f);
2181 return exit_status;
2182 }
2183
2184 int main(int argc, char **argv)
2185 {
2186 int retval;
2187 const char *usage =
2188 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2189 "[-R request] [-V] ["
2190 #ifndef READ_ONLY
2191 "[-w] "
2192 #endif
2193 "[-c] device]";
2194 int c;
2195 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2196 char *request = 0;
2197 int exit_status = 0;
2198 char *cmd_file = 0;
2199 blk64_t superblock = 0;
2200 blk64_t blocksize = 0;
2201 int catastrophic = 0;
2202 char *data_filename = 0;
2203 #ifdef READ_ONLY
2204 const char *opt_string = "nicR:f:b:s:Vd:D";
2205 #else
2206 const char *opt_string = "niwcR:f:b:s:Vd:D";
2207 #endif
2208
2209 if (debug_prog_name == 0)
2210 #ifdef READ_ONLY
2211 debug_prog_name = "rdebugfs";
2212 #else
2213 debug_prog_name = "debugfs";
2214 #endif
2215 add_error_table(&et_ext2_error_table);
2216 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2217 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2218
2219 while ((c = getopt (argc, argv, opt_string)) != EOF) {
2220 switch (c) {
2221 case 'R':
2222 request = optarg;
2223 break;
2224 case 'f':
2225 cmd_file = optarg;
2226 break;
2227 case 'd':
2228 data_filename = optarg;
2229 break;
2230 case 'i':
2231 open_flags |= EXT2_FLAG_IMAGE_FILE;
2232 break;
2233 case 'n':
2234 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2235 break;
2236 #ifndef READ_ONLY
2237 case 'w':
2238 open_flags |= EXT2_FLAG_RW;
2239 break;
2240 #endif
2241 case 'D':
2242 open_flags |= EXT2_FLAG_DIRECT_IO;
2243 break;
2244 case 'b':
2245 blocksize = parse_ulong(optarg, argv[0],
2246 "block size", 0);
2247 break;
2248 case 's':
2249 retval = strtoblk(argv[0], optarg,
2250 "superblock block number",
2251 &superblock);
2252 if (retval)
2253 return 1;
2254 break;
2255 case 'c':
2256 catastrophic = 1;
2257 break;
2258 case 'V':
2259 /* Print version number and exit */
2260 fprintf(stderr, "\tUsing %s\n",
2261 error_message(EXT2_ET_BASE));
2262 exit(0);
2263 default:
2264 com_err(argv[0], 0, usage, debug_prog_name);
2265 return 1;
2266 }
2267 }
2268 if (optind < argc)
2269 open_filesystem(argv[optind], open_flags,
2270 superblock, blocksize, catastrophic,
2271 data_filename);
2272
2273 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2274 &debug_cmds, &retval);
2275 if (retval) {
2276 ss_perror(sci_idx, retval, "creating invocation");
2277 exit(1);
2278 }
2279 ss_get_readline(sci_idx);
2280
2281 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2282 if (retval) {
2283 ss_perror(sci_idx, retval, "adding standard requests");
2284 exit (1);
2285 }
2286 if (extra_cmds)
2287 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2288 if (retval) {
2289 ss_perror(sci_idx, retval, "adding extra requests");
2290 exit (1);
2291 }
2292 if (request) {
2293 retval = 0;
2294 retval = ss_execute_line(sci_idx, request);
2295 if (retval) {
2296 ss_perror(sci_idx, retval, request);
2297 exit_status++;
2298 }
2299 } else if (cmd_file) {
2300 exit_status = source_file(cmd_file, sci_idx);
2301 } else {
2302 ss_listen(sci_idx);
2303 }
2304
2305 ss_delete_invocation(sci_idx);
2306
2307 if (current_fs)
2308 close_filesystem();
2309
2310 remove_error_table(&et_ext2_error_table);
2311 return exit_status;
2312 }
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