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