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Merge branch 'issue-168' of https://github.com/chestnykh/e2fsprogs 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 #include <libgen.h>
19 #ifdef HAVE_GETOPT_H
20 #include <getopt.h>
21 #else
22 extern int optind;
23 extern char *optarg;
24 #endif
25 #ifdef HAVE_ERRNO_H
26 #include <errno.h>
27 #endif
28 #include <fcntl.h>
29 #ifdef HAVE_SYS_SYSMACROS_H
30 #include <sys/sysmacros.h>
31 #endif
32
33 #include "debugfs.h"
34 #include "uuid/uuid.h"
35 #include "e2p/e2p.h"
36
37 #include <ext2fs/ext2_ext_attr.h>
38
39 #include "../version.h"
40 #include "jfs_user.h"
41 #include "support/plausible.h"
42
43 #ifndef BUFSIZ
44 #define BUFSIZ 8192
45 #endif
46
47 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
48 int journal_enable_debug = -1;
49 #endif
50
51 /*
52 * There must be only one definition if we're hooking in extra commands or
53 * changing default prompt. Use -DSKIP_GLOBDEF for that.
54 */
55 #ifndef SKIP_GLOBDEFS
56 ss_request_table *extra_cmds;
57 const char *debug_prog_name;
58 #endif
59 int ss_sci_idx;
60
61 ext2_filsys current_fs;
62 quota_ctx_t current_qctx;
63 ext2_ino_t root, cwd;
64 int no_copy_xattrs;
65
66 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
67 io_manager *io_ptr)
68 {
69 errcode_t retval = ENOMEM;
70 const char *tdb_dir = NULL;
71 char *tdb_file = NULL;
72 char *dev_name, *tmp_name;
73
74 /* (re)open a specific undo file */
75 if (undo_file && undo_file[0] != 0) {
76 retval = set_undo_io_backing_manager(*io_ptr);
77 if (retval)
78 goto err;
79 *io_ptr = undo_io_manager;
80 retval = set_undo_io_backup_file(undo_file);
81 if (retval)
82 goto err;
83 printf("Overwriting existing filesystem; this can be undone "
84 "using the command:\n"
85 " e2undo %s %s\n\n",
86 undo_file, device_name);
87 return retval;
88 }
89
90 /*
91 * Configuration via a conf file would be
92 * nice
93 */
94 tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
95 if (!tdb_dir)
96 tdb_dir = "/var/lib/e2fsprogs";
97
98 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
99 access(tdb_dir, W_OK))
100 return 0;
101
102 tmp_name = strdup(device_name);
103 if (!tmp_name)
104 goto errout;
105 dev_name = basename(tmp_name);
106 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
107 if (!tdb_file) {
108 free(tmp_name);
109 goto errout;
110 }
111 sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
112 free(tmp_name);
113
114 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
115 retval = errno;
116 com_err("debugfs", retval,
117 "while trying to delete %s", tdb_file);
118 goto errout;
119 }
120
121 retval = set_undo_io_backing_manager(*io_ptr);
122 if (retval)
123 goto errout;
124 *io_ptr = undo_io_manager;
125 retval = set_undo_io_backup_file(tdb_file);
126 if (retval)
127 goto errout;
128 printf("Overwriting existing filesystem; this can be undone "
129 "using the command:\n"
130 " e2undo %s %s\n\n", tdb_file, device_name);
131
132 free(tdb_file);
133 return 0;
134 errout:
135 free(tdb_file);
136 err:
137 com_err("debugfs", retval, "while trying to setup undo file\n");
138 return retval;
139 }
140
141 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
142 blk64_t blocksize, int catastrophic,
143 char *data_filename, char *undo_file)
144 {
145 int retval;
146 io_channel data_io = 0;
147 io_manager io_ptr = unix_io_manager;
148
149 if (superblock != 0 && blocksize == 0) {
150 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
151 current_fs = NULL;
152 return;
153 }
154
155 if (data_filename) {
156 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
157 com_err(device, 0,
158 "The -d option is only valid when reading an e2image file");
159 current_fs = NULL;
160 return;
161 }
162 retval = unix_io_manager->open(data_filename, 0, &data_io);
163 if (retval) {
164 com_err(data_filename, 0, "while opening data source");
165 current_fs = NULL;
166 return;
167 }
168 }
169
170 if (catastrophic)
171 open_flags |= EXT2_FLAG_SKIP_MMP | EXT2_FLAG_IGNORE_SB_ERRORS;
172
173 if (undo_file) {
174 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
175 if (retval)
176 exit(1);
177 }
178
179 try_open_again:
180 retval = ext2fs_open(device, open_flags, superblock, blocksize,
181 io_ptr, &current_fs);
182 if (retval && (retval == EXT2_ET_SB_CSUM_INVALID) &&
183 !(open_flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
184 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
185 printf("Checksum errors in superblock! Retrying...\n");
186 goto try_open_again;
187 }
188 if (retval) {
189 com_err(debug_prog_name, retval,
190 "while trying to open %s", device);
191 if (retval == EXT2_ET_BAD_MAGIC)
192 check_plausibility(device, CHECK_FS_EXIST, NULL);
193 current_fs = NULL;
194 return;
195 }
196 current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
197
198 if (!catastrophic) {
199 retval = ext2fs_read_bitmaps(current_fs);
200 if (retval) {
201 com_err(device, retval,
202 "while reading allocation bitmaps");
203 goto errout;
204 }
205 }
206
207 if (data_io) {
208 retval = ext2fs_set_data_io(current_fs, data_io);
209 if (retval) {
210 com_err(device, retval,
211 "while setting data source");
212 goto errout;
213 }
214 }
215
216 root = cwd = EXT2_ROOT_INO;
217 return;
218
219 errout:
220 retval = ext2fs_close_free(&current_fs);
221 if (retval)
222 com_err(device, retval, "while trying to close filesystem");
223 }
224
225 void do_open_filesys(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
226 void *infop EXT2FS_ATTR((unused)))
227 {
228 int c, err;
229 int catastrophic = 0;
230 blk64_t superblock = 0;
231 blk64_t blocksize = 0;
232 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS |
233 EXT2_FLAG_THREADS;
234 char *data_filename = 0;
235 char *undo_file = NULL;
236
237 reset_getopt();
238 while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
239 switch (c) {
240 case 'i':
241 open_flags |= EXT2_FLAG_IMAGE_FILE;
242 break;
243 case 'w':
244 #ifdef READ_ONLY
245 goto print_usage;
246 #else
247 open_flags |= EXT2_FLAG_RW;
248 #endif /* READ_ONLY */
249 break;
250 case 'f':
251 open_flags |= EXT2_FLAG_FORCE;
252 break;
253 case 'e':
254 open_flags |= EXT2_FLAG_EXCLUSIVE;
255 break;
256 case 'c':
257 catastrophic = 1;
258 break;
259 case 'd':
260 data_filename = optarg;
261 break;
262 case 'D':
263 open_flags |= EXT2_FLAG_DIRECT_IO;
264 break;
265 case 'b':
266 blocksize = parse_ulong(optarg, argv[0],
267 "block size", &err);
268 if (err)
269 return;
270 break;
271 case 's':
272 err = strtoblk(argv[0], optarg,
273 "superblock block number", &superblock);
274 if (err)
275 return;
276 break;
277 case 'z':
278 #ifdef READ_ONLY
279 goto print_usage;
280 #else
281 undo_file = optarg;
282 #endif
283 break;
284 default:
285 goto print_usage;
286 }
287 }
288 if (optind != argc-1) {
289 goto print_usage;
290 }
291 if (check_fs_not_open(argv[0]))
292 return;
293 open_filesystem(argv[optind], open_flags,
294 superblock, blocksize, catastrophic,
295 data_filename, undo_file);
296 return;
297
298 print_usage:
299 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
300 #ifdef READ_ONLY
301 "[-d image_filename] [-z undo_file] [-c] [-i] [-f] [-e] [-D] "
302 #else
303 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] [-w] "
304 #endif
305 "<device>\n", argv[0]);
306 }
307
308 void do_lcd(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
309 void *infop EXT2FS_ATTR((unused)))
310 {
311 if (argc != 2) {
312 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
313 return;
314 }
315
316 if (chdir(argv[1]) == -1) {
317 com_err(argv[0], errno,
318 "while trying to change native directory to %s",
319 argv[1]);
320 return;
321 }
322 }
323
324 static void close_filesystem(NOARGS)
325 {
326 int retval;
327
328 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
329 retval = ext2fs_write_inode_bitmap(current_fs);
330 if (retval)
331 com_err("ext2fs_write_inode_bitmap", retval, 0);
332 }
333 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
334 retval = ext2fs_write_block_bitmap(current_fs);
335 if (retval)
336 com_err("ext2fs_write_block_bitmap", retval, 0);
337 }
338 if (current_qctx)
339 quota_release_context(&current_qctx);
340 retval = ext2fs_close_free(&current_fs);
341 if (retval)
342 com_err("ext2fs_close", retval, 0);
343 return;
344 }
345
346 void do_close_filesys(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
347 void *infop EXT2FS_ATTR((unused)))
348 {
349 int c;
350
351 if (check_fs_open(argv[0]))
352 return;
353
354 reset_getopt();
355 while ((c = getopt (argc, argv, "a")) != EOF) {
356 switch (c) {
357 case 'a':
358 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
359 break;
360 default:
361 goto print_usage;
362 }
363 }
364
365 if (argc > optind) {
366 print_usage:
367 com_err(0, 0, "Usage: close_filesys [-a]");
368 return;
369 }
370
371 close_filesystem();
372 }
373
374 #ifndef READ_ONLY
375 void do_init_filesys(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
376 void *infop EXT2FS_ATTR((unused)))
377 {
378 struct ext2_super_block param;
379 errcode_t retval;
380 int err;
381 blk64_t blocks;
382
383 if (common_args_process(argc, argv, 3, 3, "initialize",
384 "<device> <blocks>", CHECK_FS_NOTOPEN))
385 return;
386
387 memset(&param, 0, sizeof(struct ext2_super_block));
388 err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
389 if (err)
390 return;
391 ext2fs_blocks_count_set(&param, blocks);
392 retval = ext2fs_initialize(argv[1], 0, &param,
393 unix_io_manager, &current_fs);
394 if (retval) {
395 com_err(argv[1], retval, "while initializing filesystem");
396 current_fs = NULL;
397 return;
398 }
399 root = cwd = EXT2_ROOT_INO;
400 return;
401 }
402
403 static void print_features(struct ext2_super_block * s, FILE *f)
404 {
405 int i, j, printed=0;
406 __u32 *mask = &s->s_feature_compat, m;
407
408 fputs("Filesystem features:", f);
409 for (i=0; i <3; i++,mask++) {
410 for (j=0,m=1; j < 32; j++, m<<=1) {
411 if (*mask & m) {
412 fprintf(f, " %s", e2p_feature2string(i, m));
413 printed++;
414 }
415 }
416 }
417 if (printed == 0)
418 fputs("(none)", f);
419 fputs("\n", f);
420 }
421 #endif /* READ_ONLY */
422
423 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
424 const char *str, int *first, FILE *f)
425 {
426 if (ext2fs_bg_flags_test(fs, group, mask)) {
427 if (*first) {
428 fputs(" [", f);
429 *first = 0;
430 } else
431 fputs(", ", f);
432 fputs(str, f);
433 }
434 }
435
436 void do_show_super_stats(int argc, ss_argv_t argv,
437 int sci_idx EXT2FS_ATTR((unused)),
438 void *infop EXT2FS_ATTR((unused)))
439 {
440 const char *units ="block";
441 dgrp_t i;
442 FILE *out;
443 int c, header_only = 0;
444 int numdirs = 0, first, gdt_csum;
445
446 reset_getopt();
447 while ((c = getopt (argc, argv, "h")) != EOF) {
448 switch (c) {
449 case 'h':
450 header_only++;
451 break;
452 default:
453 goto print_usage;
454 }
455 }
456 if (optind != argc) {
457 goto print_usage;
458 }
459 if (check_fs_open(argv[0]))
460 return;
461 out = open_pager();
462
463 if (ext2fs_has_feature_bigalloc(current_fs->super))
464 units = "cluster";
465
466 list_super2(current_fs->super, out);
467 if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
468 !ext2fs_superblock_csum_verify(current_fs,
469 current_fs->super)) {
470 __u32 orig_csum = current_fs->super->s_checksum;
471
472 ext2fs_superblock_csum_set(current_fs,
473 current_fs->super);
474 fprintf(out, "Expected Checksum: 0x%08x\n",
475 current_fs->super->s_checksum);
476 current_fs->super->s_checksum = orig_csum;
477 }
478 for (i=0; i < current_fs->group_desc_count; i++)
479 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
480 fprintf(out, "Directories: %u\n", numdirs);
481
482 if (header_only) {
483 close_pager(out);
484 return;
485 }
486
487 gdt_csum = ext2fs_has_group_desc_csum(current_fs);
488 for (i = 0; i < current_fs->group_desc_count; i++) {
489 fprintf(out, " Group %2d: block bitmap at %llu, "
490 "inode bitmap at %llu, "
491 "inode table at %llu\n"
492 " %u free %s%s, "
493 "%u free %s, "
494 "%u used %s%s", i,
495 (unsigned long long) ext2fs_block_bitmap_loc(current_fs, i),
496 (unsigned long long) ext2fs_inode_bitmap_loc(current_fs, i),
497 (unsigned long long) ext2fs_inode_table_loc(current_fs, i),
498 ext2fs_bg_free_blocks_count(current_fs, i),
499 units,
500 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
501 "s" : "",
502 ext2fs_bg_free_inodes_count(current_fs, i),
503 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
504 "inodes" : "inode",
505 ext2fs_bg_used_dirs_count(current_fs, i),
506 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
507 : "directory", gdt_csum ? ", " : "\n");
508 if (gdt_csum)
509 fprintf(out, "%u unused %s\n",
510 ext2fs_bg_itable_unused(current_fs, i),
511 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
512 "inodes" : "inode");
513 first = 1;
514 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
515 &first, out);
516 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
517 &first, out);
518 if (gdt_csum) {
519 fprintf(out, "%sChecksum 0x%04x",
520 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
521 first = 0;
522 }
523 if (!first)
524 fputs("]\n", out);
525 }
526 close_pager(out);
527 return;
528 print_usage:
529 fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
530 }
531
532 #ifndef READ_ONLY
533 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
534 ss_argv_t argv EXT2FS_ATTR((unused)),
535 int sci_idx EXT2FS_ATTR((unused)),
536 void *infop EXT2FS_ATTR((unused)))
537 {
538 if (check_fs_open(argv[0]))
539 return;
540 if (check_fs_read_write(argv[0]))
541 return;
542
543 if (argv[1] && !strcmp(argv[1], "-clean"))
544 current_fs->super->s_state |= EXT2_VALID_FS;
545 else
546 current_fs->super->s_state &= ~EXT2_VALID_FS;
547 ext2fs_mark_super_dirty(current_fs);
548 }
549 #endif /* READ_ONLY */
550
551 struct list_blocks_struct {
552 FILE *f;
553 e2_blkcnt_t total;
554 blk64_t first_block, last_block;
555 e2_blkcnt_t first_bcnt, last_bcnt;
556 e2_blkcnt_t first;
557 };
558
559 static void finish_range(struct list_blocks_struct *lb)
560 {
561 if (lb->first_block == 0)
562 return;
563 if (lb->first)
564 lb->first = 0;
565 else
566 fprintf(lb->f, ", ");
567 if (lb->first_block == lb->last_block)
568 fprintf(lb->f, "(%lld):%llu",
569 (long long)lb->first_bcnt,
570 (unsigned long long) lb->first_block);
571 else
572 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
573 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
574 (unsigned long long) lb->first_block,
575 (unsigned long long) lb->last_block);
576 lb->first_block = 0;
577 }
578
579 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
580 blk64_t *blocknr, e2_blkcnt_t blockcnt,
581 blk64_t ref_block EXT2FS_ATTR((unused)),
582 int ref_offset EXT2FS_ATTR((unused)),
583 void *private)
584 {
585 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
586
587 lb->total++;
588 if (blockcnt >= 0) {
589 /*
590 * See if we can add on to the existing range (if it exists)
591 */
592 if (lb->first_block &&
593 (lb->last_block+1 == *blocknr) &&
594 (lb->last_bcnt+1 == blockcnt)) {
595 lb->last_block = *blocknr;
596 lb->last_bcnt = blockcnt;
597 return 0;
598 }
599 /*
600 * Start a new range.
601 */
602 finish_range(lb);
603 lb->first_block = lb->last_block = *blocknr;
604 lb->first_bcnt = lb->last_bcnt = blockcnt;
605 return 0;
606 }
607 /*
608 * Not a normal block. Always force a new range.
609 */
610 finish_range(lb);
611 if (lb->first)
612 lb->first = 0;
613 else
614 fprintf(lb->f, ", ");
615 if (blockcnt == -1)
616 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
617 else if (blockcnt == -2)
618 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
619 else if (blockcnt == -3)
620 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
621 return 0;
622 }
623
624 static void internal_dump_inode_extra(FILE *out,
625 const char *prefix EXT2FS_ATTR((unused)),
626 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
627 struct ext2_inode_large *inode)
628 {
629 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
630 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
631 EXT2_GOOD_OLD_INODE_SIZE) {
632 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
633 inode->i_extra_isize);
634 return;
635 }
636 }
637
638 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
639 {
640 struct list_blocks_struct lb;
641
642 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
643 lb.total = 0;
644 lb.first_block = 0;
645 lb.f = f;
646 lb.first = 1;
647 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
648 list_blocks_proc, (void *)&lb);
649 finish_range(&lb);
650 if (lb.total)
651 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
652 fprintf(f,"\n");
653 }
654
655 static int int_log10(unsigned long long arg)
656 {
657 int l = 0;
658
659 arg = arg / 10;
660 while (arg) {
661 l++;
662 arg = arg / 10;
663 }
664 return l;
665 }
666
667 #define DUMP_LEAF_EXTENTS 0x01
668 #define DUMP_NODE_EXTENTS 0x02
669 #define DUMP_EXTENT_TABLE 0x04
670
671 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
672 int flags, int logical_width, int physical_width)
673 {
674 ext2_extent_handle_t handle;
675 struct ext2fs_extent extent;
676 struct ext2_extent_info info;
677 int op = EXT2_EXTENT_ROOT;
678 unsigned int printed = 0;
679 errcode_t errcode;
680
681 errcode = ext2fs_extent_open(current_fs, ino, &handle);
682 if (errcode)
683 return;
684
685 if (flags & DUMP_EXTENT_TABLE)
686 fprintf(f, "Level Entries %*s %*s Length Flags\n",
687 (logical_width*2)+3, "Logical",
688 (physical_width*2)+3, "Physical");
689 else
690 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
691
692 while (1) {
693 errcode = ext2fs_extent_get(handle, op, &extent);
694
695 if (errcode)
696 break;
697
698 op = EXT2_EXTENT_NEXT;
699
700 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
701 continue;
702
703 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
704 if ((flags & DUMP_LEAF_EXTENTS) == 0)
705 continue;
706 } else {
707 if ((flags & DUMP_NODE_EXTENTS) == 0)
708 continue;
709 }
710
711 errcode = ext2fs_extent_get_info(handle, &info);
712 if (errcode)
713 continue;
714
715 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
716 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
717 continue;
718
719 if (flags & DUMP_EXTENT_TABLE) {
720 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
721 "%*llu%*s %6u\n",
722 info.curr_level, info.max_depth,
723 info.curr_entry, info.num_entries,
724 logical_width,
725 (unsigned long long) extent.e_lblk,
726 logical_width,
727 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
728 physical_width,
729 (unsigned long long) extent.e_pblk,
730 physical_width+3, "", extent.e_len);
731 continue;
732 }
733
734 fprintf(f, "%s(ETB%d):%llu",
735 printed ? ", " : "", info.curr_level,
736 (unsigned long long) extent.e_pblk);
737 printed = 1;
738 continue;
739 }
740
741 if (flags & DUMP_EXTENT_TABLE) {
742 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
743 "%*llu - %*llu %6u %s\n",
744 info.curr_level, info.max_depth,
745 info.curr_entry, info.num_entries,
746 logical_width,
747 (unsigned long long) extent.e_lblk,
748 logical_width,
749 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
750 physical_width,
751 (unsigned long long) extent.e_pblk,
752 physical_width,
753 (unsigned long long) extent.e_pblk + (extent.e_len - 1),
754 extent.e_len,
755 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
756 "Uninit" : "");
757 continue;
758 }
759
760 if (extent.e_len == 0)
761 continue;
762 else if (extent.e_len == 1)
763 fprintf(f,
764 "%s(%lld%s):%lld",
765 printed ? ", " : "",
766 (unsigned long long) extent.e_lblk,
767 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
768 "[u]" : "",
769 (unsigned long long) extent.e_pblk);
770 else
771 fprintf(f,
772 "%s(%lld-%lld%s):%lld-%lld",
773 printed ? ", " : "",
774 (unsigned long long) extent.e_lblk,
775 (unsigned long long) extent.e_lblk + (extent.e_len - 1),
776 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
777 "[u]" : "",
778 (unsigned long long) extent.e_pblk,
779 (unsigned long long) extent.e_pblk + (extent.e_len - 1));
780 printed = 1;
781 }
782 if (printed)
783 fprintf(f, "\n");
784 ext2fs_extent_free(handle);
785 }
786
787 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
788 {
789 errcode_t retval;
790 size_t size;
791
792 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
793 if (!retval)
794 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
795 }
796
797 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
798 struct ext2_inode *inode, const char *prefix)
799 {
800 errcode_t retval;
801 char *buf = NULL;
802 size_t size;
803
804 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
805 if (retval)
806 goto out;
807
808 retval = ext2fs_get_memzero(size + 1, &buf);
809 if (retval)
810 goto out;
811
812 retval = ext2fs_inline_data_get(current_fs, inode_num,
813 inode, buf, &size);
814 if (retval)
815 goto out;
816
817 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
818 (int)size, buf);
819 out:
820 if (buf)
821 ext2fs_free_mem(&buf);
822 if (retval)
823 com_err(__func__, retval, "while dumping link destination");
824 }
825
826 void internal_dump_inode(FILE *out, const char *prefix,
827 ext2_ino_t inode_num, struct ext2_inode *inode,
828 int do_dump_blocks)
829 {
830 const char *i_type;
831 char frag, fsize;
832 int os = current_fs->super->s_creator_os;
833 struct ext2_inode_large *large_inode;
834 size_t inode_size;
835
836 large_inode = (struct ext2_inode_large *) inode;
837 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
838 inode_size = ext2fs_inode_actual_size(large_inode);
839 else
840 inode_size = EXT2_GOOD_OLD_INODE_SIZE;
841
842 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
843 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
844 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
845 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
846 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
847 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
848 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
849 else i_type = "bad type";
850 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
851 fprintf(out, "%sMode: 0%03o Flags: 0x%x\n",
852 prefix, inode->i_mode & 07777, inode->i_flags);
853 if (ext2fs_inode_includes(inode_size, i_version_hi)) {
854 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
855 prefix, inode->i_generation, large_inode->i_version_hi,
856 inode->osd1.linux1.l_i_version);
857 } else {
858 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
859 inode->i_generation, inode->osd1.linux1.l_i_version);
860 }
861 fprintf(out, "%sUser: %5d Group: %5d",
862 prefix, inode_uid(*inode), inode_gid(*inode));
863 if (ext2fs_inode_includes(inode_size, i_projid))
864 fprintf(out, " Project: %5d", large_inode->i_projid);
865 fputs(" Size: ", out);
866 if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
867 fprintf(out, "%llu\n", (unsigned long long) EXT2_I_SIZE(inode));
868 else
869 fprintf(out, "%u\n", inode->i_size);
870 if (os == EXT2_OS_HURD)
871 fprintf(out,
872 "%sFile ACL: %u Translator: %u\n",
873 prefix,
874 inode->i_file_acl,
875 inode->osd1.hurd1.h_i_translator);
876 else
877 fprintf(out, "%sFile ACL: %llu\n",
878 prefix,
879 inode->i_file_acl | ((long long)
880 (inode->osd2.linux2.l_i_file_acl_high) << 32));
881 if (os != EXT2_OS_HURD)
882 fprintf(out, "%sLinks: %u Blockcount: %llu\n",
883 prefix, inode->i_links_count,
884 (((unsigned long long)
885 inode->osd2.linux2.l_i_blocks_hi << 32)) +
886 inode->i_blocks);
887 else
888 fprintf(out, "%sLinks: %u Blockcount: %u\n",
889 prefix, inode->i_links_count, inode->i_blocks);
890 switch (os) {
891 case EXT2_OS_HURD:
892 frag = inode->osd2.hurd2.h_i_frag;
893 fsize = inode->osd2.hurd2.h_i_fsize;
894 break;
895 default:
896 frag = fsize = 0;
897 }
898 fprintf(out, "%sFragment: Address: %u Number: %u Size: %u\n",
899 prefix, inode->i_faddr, frag, fsize);
900 if (ext2fs_inode_includes(inode_size, i_ctime_extra))
901 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
902 inode->i_ctime, large_inode->i_ctime_extra,
903 time_to_string(ext2fs_inode_xtime_get(large_inode,
904 i_ctime)));
905 else
906 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
907 time_to_string((__s32) inode->i_ctime));
908 if (ext2fs_inode_includes(inode_size, i_atime_extra))
909 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
910 inode->i_atime, large_inode->i_atime_extra,
911 time_to_string(ext2fs_inode_xtime_get(large_inode,
912 i_atime)));
913 else
914 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
915 time_to_string((__s32) inode->i_atime));
916 if (ext2fs_inode_includes(inode_size, i_mtime_extra))
917 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
918 inode->i_mtime, large_inode->i_mtime_extra,
919 time_to_string(ext2fs_inode_xtime_get(large_inode,
920 i_mtime)));
921 else
922 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
923 time_to_string((__s32) inode->i_mtime));
924 if (ext2fs_inode_includes(inode_size, i_crtime_extra))
925 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
926 large_inode->i_crtime, large_inode->i_crtime_extra,
927 time_to_string(ext2fs_inode_xtime_get(large_inode,
928 i_crtime)));
929 if (inode->i_dtime) {
930 if (ext2fs_inode_includes(inode_size, i_ctime_extra)) {
931 time_t tm;
932
933 /* dtime doesn't have its own i_dtime_extra field, so
934 * approximate this with i_ctime_extra instead. */
935 tm = __decode_extra_sec(inode->i_dtime,
936 large_inode->i_ctime_extra);
937 fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
938 inode->i_dtime, large_inode->i_ctime_extra,
939 time_to_string(tm));
940 } else {
941 fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
942 inode->i_dtime,
943 time_to_string((__s32) inode->i_dtime));
944 }
945 }
946 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
947 internal_dump_inode_extra(out, prefix, inode_num,
948 (struct ext2_inode_large *) inode);
949 dump_inode_attributes(out, inode_num);
950 if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
951 __u32 crc = inode->i_checksum_lo;
952 if (ext2fs_inode_includes(inode_size, i_checksum_hi))
953 crc |= ((__u32)large_inode->i_checksum_hi) << 16;
954 fprintf(out, "Inode checksum: 0x%08x\n", crc);
955 }
956
957 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
958 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
959 (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
960 else if (LINUX_S_ISLNK(inode->i_mode) &&
961 (inode->i_flags & EXT4_INLINE_DATA_FL))
962 dump_inline_symlink(out, inode_num, inode, prefix);
963 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
964 int major, minor;
965 const char *devnote;
966
967 if (inode->i_block[0]) {
968 major = (inode->i_block[0] >> 8) & 255;
969 minor = inode->i_block[0] & 255;
970 devnote = "";
971 } else {
972 major = (inode->i_block[1] & 0xfff00) >> 8;
973 minor = ((inode->i_block[1] & 0xff) |
974 ((inode->i_block[1] >> 12) & 0xfff00));
975 devnote = "(New-style) ";
976 }
977 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
978 devnote, major, minor, major, minor);
979 } else if (do_dump_blocks) {
980 if (inode->i_flags & EXT4_EXTENTS_FL)
981 dump_extents(out, prefix, inode_num,
982 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
983 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
984 dump_inline_data(out, prefix, inode_num);
985 else
986 dump_blocks(out, prefix, inode_num);
987 }
988 }
989
990 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
991 {
992 FILE *out;
993
994 out = open_pager();
995 internal_dump_inode(out, "", inode_num, inode, 1);
996 close_pager(out);
997 }
998
999 void do_stat(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1000 void *infop EXT2FS_ATTR((unused)))
1001 {
1002 ext2_ino_t inode;
1003 struct ext2_inode * inode_buf;
1004
1005 if (check_fs_open(argv[0]))
1006 return;
1007
1008 inode_buf = (struct ext2_inode *)
1009 malloc(EXT2_INODE_SIZE(current_fs->super));
1010 if (!inode_buf) {
1011 fprintf(stderr, "do_stat: can't allocate buffer\n");
1012 return;
1013 }
1014
1015 if (common_inode_args_process(argc, argv, &inode, 0)) {
1016 free(inode_buf);
1017 return;
1018 }
1019
1020 if (debugfs_read_inode2(inode, inode_buf, argv[0],
1021 EXT2_INODE_SIZE(current_fs->super), 0)) {
1022 free(inode_buf);
1023 return;
1024 }
1025
1026 dump_inode(inode, inode_buf);
1027 free(inode_buf);
1028 return;
1029 }
1030
1031 void do_dump_extents(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1032 void *infop EXT2FS_ATTR((unused)))
1033 {
1034 struct ext2_inode inode;
1035 ext2_ino_t ino;
1036 FILE *out;
1037 int c, flags = 0;
1038 int logical_width;
1039 int physical_width;
1040
1041 reset_getopt();
1042 while ((c = getopt(argc, argv, "nl")) != EOF) {
1043 switch (c) {
1044 case 'n':
1045 flags |= DUMP_NODE_EXTENTS;
1046 break;
1047 case 'l':
1048 flags |= DUMP_LEAF_EXTENTS;
1049 break;
1050 }
1051 }
1052
1053 if (argc != optind + 1) {
1054 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1055 return;
1056 }
1057
1058 if (flags == 0)
1059 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1060 flags |= DUMP_EXTENT_TABLE;
1061
1062 if (check_fs_open(argv[0]))
1063 return;
1064
1065 ino = string_to_inode(argv[optind]);
1066 if (ino == 0)
1067 return;
1068
1069 if (debugfs_read_inode(ino, &inode, argv[0]))
1070 return;
1071
1072 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1073 fprintf(stderr, "%s: does not uses extent block maps\n",
1074 argv[optind]);
1075 return;
1076 }
1077
1078 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1079 current_fs->blocksize) + 1;
1080 if (logical_width < 5)
1081 logical_width = 5;
1082 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1083 if (physical_width < 5)
1084 physical_width = 5;
1085
1086 out = open_pager();
1087 dump_extents(out, "", ino, flags, logical_width, physical_width);
1088 close_pager(out);
1089 return;
1090 }
1091
1092 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1093 blk64_t *blocknr,
1094 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1095 blk64_t ref_block EXT2FS_ATTR((unused)),
1096 int ref_offset EXT2FS_ATTR((unused)),
1097 void *private EXT2FS_ATTR((unused)))
1098 {
1099 printf("%llu ", (unsigned long long) *blocknr);
1100 return 0;
1101 }
1102
1103 void do_blocks(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1104 void *infop EXT2FS_ATTR((unused)))
1105 {
1106 ext2_ino_t inode;
1107
1108 if (check_fs_open(argv[0]))
1109 return;
1110
1111 if (common_inode_args_process(argc, argv, &inode, 0)) {
1112 return;
1113 }
1114
1115 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1116 print_blocks_proc, NULL);
1117 fputc('\n', stdout);
1118 return;
1119 }
1120
1121 void do_chroot(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1122 void *infop EXT2FS_ATTR((unused)))
1123 {
1124 ext2_ino_t inode;
1125 int retval;
1126
1127 if (common_inode_args_process(argc, argv, &inode, 0))
1128 return;
1129
1130 retval = ext2fs_check_directory(current_fs, inode);
1131 if (retval) {
1132 com_err(argv[1], retval, 0);
1133 return;
1134 }
1135 root = inode;
1136 }
1137
1138 #ifndef READ_ONLY
1139 void do_clri(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1140 void *infop EXT2FS_ATTR((unused)))
1141 {
1142 ext2_ino_t inode;
1143 struct ext2_inode inode_buf;
1144
1145 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1146 return;
1147
1148 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1149 return;
1150 memset(&inode_buf, 0, sizeof(inode_buf));
1151 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1152 return;
1153 }
1154
1155 void do_freei(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1156 void *infop EXT2FS_ATTR((unused)))
1157 {
1158 unsigned int len = 1;
1159 int err = 0;
1160 ext2_ino_t inode;
1161
1162 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1163 CHECK_FS_RW | CHECK_FS_BITMAPS))
1164 return;
1165 if (check_fs_read_write(argv[0]))
1166 return;
1167
1168 inode = string_to_inode(argv[1]);
1169 if (!inode)
1170 return;
1171
1172 if (argc == 3) {
1173 len = parse_ulong(argv[2], argv[0], "length", &err);
1174 if (err)
1175 return;
1176 }
1177
1178 if (len == 1 &&
1179 !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1180 com_err(argv[0], 0, "Warning: inode already clear");
1181 while (len-- > 0)
1182 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1183 ext2fs_mark_ib_dirty(current_fs);
1184 }
1185
1186 void do_seti(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1187 void *infop EXT2FS_ATTR((unused)))
1188 {
1189 unsigned int len = 1;
1190 int err = 0;
1191 ext2_ino_t inode;
1192
1193 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1194 CHECK_FS_RW | CHECK_FS_BITMAPS))
1195 return;
1196 if (check_fs_read_write(argv[0]))
1197 return;
1198
1199 inode = string_to_inode(argv[1]);
1200 if (!inode)
1201 return;
1202
1203 if (argc == 3) {
1204 len = parse_ulong(argv[2], argv[0], "length", &err);
1205 if (err)
1206 return;
1207 }
1208
1209 if ((len == 1) &&
1210 ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1211 com_err(argv[0], 0, "Warning: inode already set");
1212 while (len-- > 0)
1213 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1214 ext2fs_mark_ib_dirty(current_fs);
1215 }
1216 #endif /* READ_ONLY */
1217
1218 void do_testi(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1219 void *infop EXT2FS_ATTR((unused)))
1220 {
1221 ext2_ino_t inode;
1222
1223 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1224 return;
1225
1226 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1227 printf("Inode %u is marked in use\n", inode);
1228 else
1229 printf("Inode %u is not in use\n", inode);
1230 }
1231
1232 #ifndef READ_ONLY
1233 void do_freeb(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1234 void *infop EXT2FS_ATTR((unused)))
1235 {
1236 blk64_t block;
1237 blk64_t count = 1;
1238
1239 if (common_block_args_process(argc, argv, &block, &count))
1240 return;
1241 if (check_fs_read_write(argv[0]))
1242 return;
1243 while (count-- > 0) {
1244 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1245 com_err(argv[0], 0, "Warning: block %llu already clear",
1246 (unsigned long long) block);
1247 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1248 block++;
1249 }
1250 ext2fs_mark_bb_dirty(current_fs);
1251 }
1252
1253 void do_setb(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1254 void *infop EXT2FS_ATTR((unused)))
1255 {
1256 blk64_t block;
1257 blk64_t count = 1;
1258
1259 if (common_block_args_process(argc, argv, &block, &count))
1260 return;
1261 if (check_fs_read_write(argv[0]))
1262 return;
1263 while (count-- > 0) {
1264 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1265 com_err(argv[0], 0, "Warning: block %llu already set",
1266 (unsigned long long) block);
1267 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1268 block++;
1269 }
1270 ext2fs_mark_bb_dirty(current_fs);
1271 }
1272 #endif /* READ_ONLY */
1273
1274 void do_testb(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1275 void *infop EXT2FS_ATTR((unused)))
1276 {
1277 blk64_t block;
1278 blk64_t count = 1;
1279
1280 if (common_block_args_process(argc, argv, &block, &count))
1281 return;
1282 while (count-- > 0) {
1283 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1284 printf("Block %llu marked in use\n",
1285 (unsigned long long) block);
1286 else
1287 printf("Block %llu not in use\n",
1288 (unsigned long long) block);
1289 block++;
1290 }
1291 }
1292
1293 #ifndef READ_ONLY
1294 static void modify_u8(char *com, const char *prompt,
1295 const char *format, __u8 *val)
1296 {
1297 char buf[200];
1298 unsigned long v;
1299 char *tmp;
1300
1301 sprintf(buf, format, *val);
1302 printf("%30s [%s] ", prompt, buf);
1303 if (!fgets(buf, sizeof(buf), stdin))
1304 return;
1305 if (buf[strlen (buf) - 1] == '\n')
1306 buf[strlen (buf) - 1] = '\0';
1307 if (!buf[0])
1308 return;
1309 v = strtoul(buf, &tmp, 0);
1310 if (*tmp)
1311 com_err(com, 0, "Bad value - %s", buf);
1312 else
1313 *val = v;
1314 }
1315
1316 static void modify_u16(char *com, const char *prompt,
1317 const char *format, __u16 *val)
1318 {
1319 char buf[200];
1320 unsigned long v;
1321 char *tmp;
1322
1323 sprintf(buf, format, *val);
1324 printf("%30s [%s] ", prompt, buf);
1325 if (!fgets(buf, sizeof(buf), stdin))
1326 return;
1327 if (buf[strlen (buf) - 1] == '\n')
1328 buf[strlen (buf) - 1] = '\0';
1329 if (!buf[0])
1330 return;
1331 v = strtoul(buf, &tmp, 0);
1332 if (*tmp)
1333 com_err(com, 0, "Bad value - %s", buf);
1334 else
1335 *val = v;
1336 }
1337
1338 static void modify_u32(char *com, const char *prompt,
1339 const char *format, __u32 *val)
1340 {
1341 char buf[200];
1342 unsigned long v;
1343 char *tmp;
1344
1345 sprintf(buf, format, *val);
1346 printf("%30s [%s] ", prompt, buf);
1347 if (!fgets(buf, sizeof(buf), stdin))
1348 return;
1349 if (buf[strlen (buf) - 1] == '\n')
1350 buf[strlen (buf) - 1] = '\0';
1351 if (!buf[0])
1352 return;
1353 v = strtoul(buf, &tmp, 0);
1354 if (*tmp)
1355 com_err(com, 0, "Bad value - %s", buf);
1356 else
1357 *val = v;
1358 }
1359
1360
1361 void do_modify_inode(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1362 void *infop EXT2FS_ATTR((unused)))
1363 {
1364 struct ext2_inode inode;
1365 ext2_ino_t inode_num;
1366 int i;
1367 unsigned char *frag, *fsize;
1368 char buf[80];
1369 int os;
1370 const char *hex_format = "0x%x";
1371 const char *octal_format = "0%o";
1372 const char *decimal_format = "%d";
1373 const char *unsignedlong_format = "%lu";
1374
1375 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1376 return;
1377
1378 os = current_fs->super->s_creator_os;
1379
1380 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1381 return;
1382
1383 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1384 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1385 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1386 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1387 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1388 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1389 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1390 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1391 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1392 if (os == EXT2_OS_LINUX)
1393 modify_u16(argv[0], "Block count high", unsignedlong_format,
1394 &inode.osd2.linux2.l_i_blocks_hi);
1395 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1396 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1397 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1398 #if 0
1399 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1400 #endif
1401 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1402
1403 modify_u32(argv[0], "High 32bits of size", decimal_format,
1404 &inode.i_size_high);
1405
1406 if (os == EXT2_OS_HURD)
1407 modify_u32(argv[0], "Translator Block",
1408 decimal_format, &inode.osd1.hurd1.h_i_translator);
1409
1410 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1411 switch (os) {
1412 case EXT2_OS_HURD:
1413 frag = &inode.osd2.hurd2.h_i_frag;
1414 fsize = &inode.osd2.hurd2.h_i_fsize;
1415 break;
1416 default:
1417 frag = fsize = 0;
1418 }
1419 if (frag)
1420 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1421 if (fsize)
1422 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1423
1424 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1425 sprintf(buf, "Direct Block #%u", i);
1426 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1427 }
1428 modify_u32(argv[0], "Indirect Block", decimal_format,
1429 &inode.i_block[EXT2_IND_BLOCK]);
1430 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1431 &inode.i_block[EXT2_DIND_BLOCK]);
1432 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1433 &inode.i_block[EXT2_TIND_BLOCK]);
1434 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1435 return;
1436 }
1437 #endif /* READ_ONLY */
1438
1439 void do_change_working_dir(int argc, ss_argv_t argv,
1440 int sci_idx EXT2FS_ATTR((unused)),
1441 void *infop EXT2FS_ATTR((unused)))
1442 {
1443 ext2_ino_t inode;
1444 int retval;
1445
1446 if (common_inode_args_process(argc, argv, &inode, 0))
1447 return;
1448
1449 retval = ext2fs_check_directory(current_fs, inode);
1450 if (retval) {
1451 com_err(argv[1], retval, 0);
1452 return;
1453 }
1454 cwd = inode;
1455 return;
1456 }
1457
1458 void do_print_working_directory(int argc, ss_argv_t argv,
1459 int sci_idx EXT2FS_ATTR((unused)),
1460 void *infop EXT2FS_ATTR((unused)))
1461 {
1462 int retval;
1463 char *pathname = NULL;
1464
1465 if (common_args_process(argc, argv, 1, 1,
1466 "print_working_directory", "", 0))
1467 return;
1468
1469 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1470 if (retval) {
1471 com_err(argv[0], retval,
1472 "while trying to get pathname of cwd");
1473 }
1474 printf("[pwd] INODE: %6u PATH: %s\n",
1475 cwd, pathname ? pathname : "NULL");
1476 if (pathname) {
1477 free(pathname);
1478 pathname = NULL;
1479 }
1480 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1481 if (retval) {
1482 com_err(argv[0], retval,
1483 "while trying to get pathname of root");
1484 }
1485 printf("[root] INODE: %6u PATH: %s\n",
1486 root, pathname ? pathname : "NULL");
1487 if (pathname) {
1488 free(pathname);
1489 pathname = NULL;
1490 }
1491 return;
1492 }
1493
1494 #ifndef READ_ONLY
1495 static void make_link(char *sourcename, char *destname)
1496 {
1497 ext2_ino_t ino;
1498 struct ext2_inode inode;
1499 int retval;
1500 ext2_ino_t dir;
1501 char *dest, *cp, *base_name;
1502
1503 /*
1504 * Get the source inode
1505 */
1506 ino = string_to_inode(sourcename);
1507 if (!ino)
1508 return;
1509 base_name = strrchr(sourcename, '/');
1510 if (base_name)
1511 base_name++;
1512 else
1513 base_name = sourcename;
1514 /*
1515 * Figure out the destination. First see if it exists and is
1516 * a directory.
1517 */
1518 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1519 dest = base_name;
1520 else {
1521 /*
1522 * OK, it doesn't exist. See if it is
1523 * '<dir>/basename' or 'basename'
1524 */
1525 cp = strrchr(destname, '/');
1526 if (cp) {
1527 *cp = 0;
1528 dir = string_to_inode(destname);
1529 if (!dir)
1530 return;
1531 dest = cp+1;
1532 } else {
1533 dir = cwd;
1534 dest = destname;
1535 }
1536 }
1537
1538 if (debugfs_read_inode(ino, &inode, sourcename))
1539 return;
1540
1541 retval = ext2fs_link(current_fs, dir, dest, ino,
1542 ext2_file_type(inode.i_mode));
1543 if (retval)
1544 com_err("make_link", retval, 0);
1545 return;
1546 }
1547
1548
1549 void do_link(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1550 void *infop EXT2FS_ATTR((unused)))
1551 {
1552 if (common_args_process(argc, argv, 3, 3, "link",
1553 "<source file> <dest_name>", CHECK_FS_RW))
1554 return;
1555
1556 make_link(argv[1], argv[2]);
1557 }
1558
1559 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1560 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1561 blk64_t ref_block EXT2FS_ATTR((unused)),
1562 int ref_offset EXT2FS_ATTR((unused)),
1563 void *private EXT2FS_ATTR((unused)))
1564 {
1565 blk64_t block;
1566
1567 block = *blocknr;
1568 ext2fs_block_alloc_stats2(fs, block, +1);
1569 return 0;
1570 }
1571
1572 void do_undel(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1573 void *infop EXT2FS_ATTR((unused)))
1574 {
1575 ext2_ino_t ino;
1576 struct ext2_inode inode;
1577
1578 if (common_args_process(argc, argv, 2, 3, "undelete",
1579 "<inode_num> [dest_name]",
1580 CHECK_FS_RW | CHECK_FS_BITMAPS))
1581 return;
1582
1583 ino = string_to_inode(argv[1]);
1584 if (!ino)
1585 return;
1586
1587 if (debugfs_read_inode(ino, &inode, argv[1]))
1588 return;
1589
1590 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1591 com_err(argv[1], 0, "Inode is not marked as deleted");
1592 return;
1593 }
1594
1595 /*
1596 * XXX this function doesn't handle changing the links count on the
1597 * parent directory when undeleting a directory.
1598 */
1599 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1600 inode.i_dtime = 0;
1601
1602 if (debugfs_write_inode(ino, &inode, argv[0]))
1603 return;
1604
1605 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1606 mark_blocks_proc, NULL);
1607
1608 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1609
1610 if (argc > 2)
1611 make_link(argv[1], argv[2]);
1612 }
1613
1614 static void unlink_file_by_name(char *filename)
1615 {
1616 int retval;
1617 ext2_ino_t dir;
1618 char *base_name;
1619
1620 base_name = strrchr(filename, '/');
1621 if (base_name) {
1622 *base_name++ = '\0';
1623 dir = string_to_inode(filename);
1624 if (!dir)
1625 return;
1626 } else {
1627 dir = cwd;
1628 base_name = filename;
1629 }
1630 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1631 if (retval)
1632 com_err("unlink_file_by_name", retval, 0);
1633 return;
1634 }
1635
1636 void do_unlink(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1637 void *infop EXT2FS_ATTR((unused)))
1638 {
1639 if (common_args_process(argc, argv, 2, 2, "link",
1640 "<pathname>", CHECK_FS_RW))
1641 return;
1642
1643 unlink_file_by_name(argv[1]);
1644 }
1645
1646 void do_copy_inode(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1647 void *infop EXT2FS_ATTR((unused)))
1648 {
1649 ext2_ino_t src_ino, dest_ino;
1650 unsigned char buf[4096];
1651
1652 if (common_args_process(argc, argv, 3, 3, "copy_inode",
1653 "<source file> <dest_name>", CHECK_FS_RW))
1654 return;
1655
1656 src_ino = string_to_inode(argv[1]);
1657 if (!src_ino)
1658 return;
1659
1660 dest_ino = string_to_inode(argv[2]);
1661 if (!dest_ino)
1662 return;
1663
1664 if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
1665 argv[0], sizeof(buf), 0))
1666 return;
1667
1668 if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
1669 argv[0], sizeof(buf), 0))
1670 return;
1671 }
1672
1673 #endif /* READ_ONLY */
1674
1675 void do_find_free_block(int argc, ss_argv_t argv,
1676 int sci_idx EXT2FS_ATTR((unused)),
1677 void *infop EXT2FS_ATTR((unused)))
1678 {
1679 blk64_t free_blk, goal, first_free = 0;
1680 int count;
1681 errcode_t retval;
1682 char *tmp;
1683
1684 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1685 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1686 return;
1687 }
1688 if (check_fs_open(argv[0]))
1689 return;
1690
1691 if (argc > 1) {
1692 count = strtol(argv[1],&tmp,0);
1693 if (*tmp) {
1694 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1695 return;
1696 }
1697 } else
1698 count = 1;
1699
1700 if (argc > 2) {
1701 goal = strtol(argv[2], &tmp, 0);
1702 if (*tmp) {
1703 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1704 return;
1705 }
1706 }
1707 else
1708 goal = current_fs->super->s_first_data_block;
1709
1710 printf("Free blocks found: ");
1711 free_blk = goal - 1;
1712 while (count-- > 0) {
1713 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1714 &free_blk);
1715 if (first_free) {
1716 if (first_free == free_blk)
1717 break;
1718 } else
1719 first_free = free_blk;
1720 if (retval) {
1721 com_err("ext2fs_new_block", retval, 0);
1722 return;
1723 } else
1724 printf("%llu ", (unsigned long long) free_blk);
1725 }
1726 printf("\n");
1727 }
1728
1729 void do_find_free_inode(int argc, ss_argv_t argv,
1730 int sci_idx EXT2FS_ATTR((unused)),
1731 void *infop EXT2FS_ATTR((unused)))
1732 {
1733 ext2_ino_t free_inode, dir;
1734 int mode;
1735 int retval;
1736 char *tmp;
1737
1738 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1739 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1740 return;
1741 }
1742 if (check_fs_open(argv[0]))
1743 return;
1744
1745 if (argc > 1) {
1746 dir = strtol(argv[1], &tmp, 0);
1747 if (*tmp) {
1748 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1749 return;
1750 }
1751 }
1752 else
1753 dir = root;
1754 if (argc > 2) {
1755 mode = strtol(argv[2], &tmp, 0);
1756 if (*tmp) {
1757 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1758 return;
1759 }
1760 } else
1761 mode = 010755;
1762
1763 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1764 if (retval)
1765 com_err("ext2fs_new_inode", retval, 0);
1766 else
1767 printf("Free inode found: %u\n", free_inode);
1768 }
1769
1770 #ifndef READ_ONLY
1771 void do_write(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1772 void *infop EXT2FS_ATTR((unused)))
1773 {
1774 errcode_t retval;
1775
1776 if (common_args_process(argc, argv, 3, 3, "write",
1777 "<native file> <new file>", CHECK_FS_RW))
1778 return;
1779
1780 retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1781 if (retval)
1782 com_err(argv[0], retval, 0);
1783 }
1784
1785 void do_mknod(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1786 void *infop EXT2FS_ATTR((unused)))
1787 {
1788 unsigned long major, minor;
1789 errcode_t retval;
1790 int nr;
1791 struct stat st;
1792
1793 if (check_fs_open(argv[0]))
1794 return;
1795 if (argc < 3 || argv[2][1]) {
1796 usage:
1797 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1798 return;
1799 }
1800
1801 minor = major = 0;
1802 switch (argv[2][0]) {
1803 case 'p':
1804 st.st_mode = S_IFIFO;
1805 nr = 3;
1806 break;
1807 case 'c':
1808 st.st_mode = S_IFCHR;
1809 nr = 5;
1810 break;
1811 case 'b':
1812 st.st_mode = S_IFBLK;
1813 nr = 5;
1814 break;
1815 default:
1816 nr = 0;
1817 }
1818
1819 if (nr == 5) {
1820 char *end1 = NULL, *end2 = NULL;
1821
1822 major = strtoul(argv[3], &end1, 0);
1823 minor = strtoul(argv[4], &end2, 0);
1824 if (major > 65535 || minor > 65535 ||
1825 (end1 && *end1) || (end2 && *end2))
1826 nr = 0;
1827 }
1828
1829 if (argc != nr)
1830 goto usage;
1831
1832 st.st_rdev = makedev(major, minor);
1833 retval = do_mknod_internal(current_fs, cwd, argv[1],
1834 st.st_mode, st.st_rdev);
1835 if (retval)
1836 com_err(argv[0], retval, 0);
1837 }
1838
1839 void do_mkdir(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1840 void *infop EXT2FS_ATTR((unused)))
1841 {
1842 errcode_t retval;
1843
1844 if (common_args_process(argc, argv, 2, 2, "mkdir",
1845 "<filename>", CHECK_FS_RW))
1846 return;
1847
1848 retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1849 if (retval)
1850 com_err(argv[0], retval, 0);
1851
1852 }
1853
1854 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1855 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1856 blk64_t ref_block EXT2FS_ATTR((unused)),
1857 int ref_offset EXT2FS_ATTR((unused)),
1858 void *private)
1859 {
1860 blk64_t block = *blocknr;
1861 blk64_t *last_cluster = (blk64_t *)private;
1862 blk64_t cluster = EXT2FS_B2C(fs, block);
1863
1864 if (cluster == *last_cluster)
1865 return 0;
1866
1867 *last_cluster = cluster;
1868
1869 ext2fs_block_alloc_stats2(fs, block, -1);
1870 return 0;
1871 }
1872
1873 static void kill_file_by_inode(ext2_ino_t inode)
1874 {
1875 struct ext2_inode inode_buf;
1876
1877 if (debugfs_read_inode(inode, &inode_buf, 0))
1878 return;
1879 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1880 if (debugfs_write_inode(inode, &inode_buf, 0))
1881 return;
1882 if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1883 blk64_t last_cluster = 0;
1884 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1885 NULL, release_blocks_proc, &last_cluster);
1886 }
1887 printf("\n");
1888 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1889 LINUX_S_ISDIR(inode_buf.i_mode));
1890 }
1891
1892
1893 void do_kill_file(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1894 void *infop EXT2FS_ATTR((unused)))
1895 {
1896 ext2_ino_t inode_num;
1897
1898 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1899 return;
1900
1901 kill_file_by_inode(inode_num);
1902 }
1903
1904 void do_rm(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1905 void *infop EXT2FS_ATTR((unused)))
1906 {
1907 int retval;
1908 ext2_ino_t inode_num;
1909 struct ext2_inode inode;
1910
1911 if (common_args_process(argc, argv, 2, 2, "rm",
1912 "<filename>", CHECK_FS_RW))
1913 return;
1914
1915 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1916 if (retval) {
1917 com_err(argv[0], retval, "while trying to resolve filename");
1918 return;
1919 }
1920
1921 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1922 return;
1923
1924 if (LINUX_S_ISDIR(inode.i_mode)) {
1925 com_err(argv[0], 0, "file is a directory");
1926 return;
1927 }
1928
1929 --inode.i_links_count;
1930 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1931 return;
1932
1933 unlink_file_by_name(argv[1]);
1934 if (inode.i_links_count == 0)
1935 kill_file_by_inode(inode_num);
1936 }
1937
1938 struct rd_struct {
1939 ext2_ino_t parent;
1940 int empty;
1941 };
1942
1943 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1944 int entry EXT2FS_ATTR((unused)),
1945 struct ext2_dir_entry *dirent,
1946 int offset EXT2FS_ATTR((unused)),
1947 int blocksize EXT2FS_ATTR((unused)),
1948 char *buf EXT2FS_ATTR((unused)),
1949 void *private)
1950 {
1951 struct rd_struct *rds = (struct rd_struct *) private;
1952
1953 if (dirent->inode == 0)
1954 return 0;
1955 if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1956 return 0;
1957 if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1958 (dirent->name[1] == '.')) {
1959 rds->parent = dirent->inode;
1960 return 0;
1961 }
1962 rds->empty = 0;
1963 return 0;
1964 }
1965
1966 void do_rmdir(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
1967 void *infop EXT2FS_ATTR((unused)))
1968 {
1969 int retval;
1970 ext2_ino_t inode_num;
1971 struct ext2_inode inode;
1972 struct rd_struct rds;
1973
1974 if (common_args_process(argc, argv, 2, 2, "rmdir",
1975 "<filename>", CHECK_FS_RW))
1976 return;
1977
1978 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1979 if (retval) {
1980 com_err(argv[0], retval, "while trying to resolve filename");
1981 return;
1982 }
1983
1984 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1985 return;
1986
1987 if (!LINUX_S_ISDIR(inode.i_mode)) {
1988 com_err(argv[0], 0, "file is not a directory");
1989 return;
1990 }
1991
1992 rds.parent = 0;
1993 rds.empty = 1;
1994
1995 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1996 0, rmdir_proc, &rds);
1997 if (retval) {
1998 com_err(argv[0], retval, "while iterating over directory");
1999 return;
2000 }
2001 if (rds.empty == 0) {
2002 com_err(argv[0], 0, "directory not empty");
2003 return;
2004 }
2005
2006 inode.i_links_count = 0;
2007 if (debugfs_write_inode(inode_num, &inode, argv[0]))
2008 return;
2009
2010 unlink_file_by_name(argv[1]);
2011 kill_file_by_inode(inode_num);
2012
2013 if (rds.parent) {
2014 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
2015 return;
2016 if (inode.i_links_count > 1)
2017 inode.i_links_count--;
2018 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
2019 return;
2020 }
2021 }
2022 #endif /* READ_ONLY */
2023
2024 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
2025 ss_argv_t argv EXT2FS_ATTR((unused)),
2026 int sci_idx EXT2FS_ATTR((unused)),
2027 void *infop EXT2FS_ATTR((unused)))
2028 {
2029 if (current_fs)
2030 printf("Open mode: read-%s\n",
2031 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2032 printf("Filesystem in use: %s\n",
2033 current_fs ? current_fs->device_name : "--none--");
2034 }
2035
2036 #ifndef READ_ONLY
2037 void do_expand_dir(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2038 void *infop EXT2FS_ATTR((unused)))
2039 {
2040 ext2_ino_t inode;
2041 int retval;
2042
2043 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2044 return;
2045
2046 retval = ext2fs_expand_dir(current_fs, inode);
2047 if (retval)
2048 com_err("ext2fs_expand_dir", retval, 0);
2049 return;
2050 }
2051
2052 void do_features(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2053 void *infop EXT2FS_ATTR((unused)))
2054 {
2055 int i;
2056
2057 if (check_fs_open(argv[0]))
2058 return;
2059
2060 if ((argc != 1) && check_fs_read_write(argv[0]))
2061 return;
2062 for (i=1; i < argc; i++) {
2063 if (e2p_edit_feature(argv[i],
2064 &current_fs->super->s_feature_compat, 0))
2065 com_err(argv[0], 0, "Unknown feature: %s\n",
2066 argv[i]);
2067 else
2068 ext2fs_mark_super_dirty(current_fs);
2069 }
2070 print_features(current_fs->super, stdout);
2071 }
2072 #endif /* READ_ONLY */
2073
2074 void do_bmap(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2075 void *infop EXT2FS_ATTR((unused)))
2076 {
2077 ext2_ino_t ino;
2078 blk64_t blk, pblk = 0;
2079 int c, err, flags = 0, ret_flags = 0;
2080 errcode_t errcode;
2081
2082 if (check_fs_open(argv[0]))
2083 return;
2084
2085 reset_getopt();
2086 while ((c = getopt (argc, argv, "a")) != EOF) {
2087 switch (c) {
2088 case 'a':
2089 flags |= BMAP_ALLOC;
2090 break;
2091 default:
2092 goto print_usage;
2093 }
2094 }
2095
2096 if (argc <= optind+1) {
2097 print_usage:
2098 com_err(0, 0,
2099 "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2100 return;
2101 }
2102
2103 ino = string_to_inode(argv[optind++]);
2104 if (!ino)
2105 return;
2106 err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2107 if (err)
2108 return;
2109
2110 if (argc > optind+1)
2111 goto print_usage;
2112
2113 if (argc == optind+1) {
2114 err = strtoblk(argv[0], argv[optind++],
2115 "physical block", &pblk);
2116 if (err)
2117 return;
2118 if (flags & BMAP_ALLOC) {
2119 com_err(0, 0, "Can't set and allocate a block");
2120 return;
2121 }
2122 flags |= BMAP_SET;
2123 }
2124
2125 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2126 &ret_flags, &pblk);
2127 if (errcode) {
2128 com_err(argv[0], errcode,
2129 "while mapping logical block %llu\n",
2130 (unsigned long long) blk);
2131 return;
2132 }
2133 printf("%llu", (unsigned long long) pblk);
2134 if (ret_flags & BMAP_RET_UNINIT)
2135 fputs(" (uninit)", stdout);
2136 fputc('\n', stdout);
2137 }
2138
2139 void do_imap(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2140 void *infop EXT2FS_ATTR((unused)))
2141 {
2142 ext2_ino_t ino;
2143 unsigned long group, block, block_nr, offset;
2144
2145 if (common_args_process(argc, argv, 2, 2, argv[0],
2146 "<file>", 0))
2147 return;
2148 ino = string_to_inode(argv[1]);
2149 if (!ino)
2150 return;
2151
2152 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2153 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2154 EXT2_INODE_SIZE(current_fs->super);
2155 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2156 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2157 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2158 group);
2159 return;
2160 }
2161 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2162 block;
2163 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2164
2165 printf("Inode %u is part of block group %lu\n"
2166 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2167 block_nr, offset);
2168
2169 }
2170
2171 void do_idump(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2172 void *infop EXT2FS_ATTR((unused)))
2173 {
2174 struct ext2_inode_large *inode;
2175 ext2_ino_t ino;
2176 unsigned char *buf;
2177 errcode_t err;
2178 unsigned int isize, size, offset = 0;
2179 int c, mode = 0;
2180
2181 reset_getopt();
2182 while ((c = getopt (argc, argv, "bex")) != EOF) {
2183 if (mode || c == '?') {
2184 com_err(argv[0], 0,
2185 "Usage: inode_dump [-b]|[-e] <file>");
2186 return;
2187 }
2188 mode = c;
2189 }
2190 if (optind != argc-1)
2191 return;
2192
2193 if (check_fs_open(argv[0]))
2194 return;
2195
2196 ino = string_to_inode(argv[optind]);
2197 if (!ino)
2198 return;
2199
2200 isize = EXT2_INODE_SIZE(current_fs->super);
2201 err = ext2fs_get_mem(isize, &buf);
2202 if (err) {
2203 com_err(argv[0], err, "while allocating memory");
2204 return;
2205 }
2206
2207 err = ext2fs_read_inode_full(current_fs, ino,
2208 (struct ext2_inode *)buf, isize);
2209 if (err) {
2210 com_err(argv[0], err, "while reading inode %u", ino);
2211 goto err;
2212 }
2213
2214 inode = (struct ext2_inode_large *) buf;
2215 size = isize;
2216 switch (mode) {
2217 case 'b':
2218 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2219 size = sizeof(inode->i_block);
2220 break;
2221 case 'x':
2222 case 'e':
2223 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2224 com_err(argv[0], 0, "No extra space in inode");
2225 goto err;
2226 }
2227 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2228 if (offset > size)
2229 goto err;
2230 size -= offset;
2231 break;
2232 }
2233 if (mode == 'x')
2234 raw_inode_xattr_dump(stdout, buf + offset, size);
2235 else
2236 do_byte_hexdump(stdout, buf + offset, size);
2237 err:
2238 ext2fs_free_mem(&buf);
2239 }
2240
2241 #ifndef READ_ONLY
2242 void do_set_current_time(int argc, ss_argv_t argv,
2243 int sci_idx EXT2FS_ATTR((unused)),
2244 void *infop EXT2FS_ATTR((unused)))
2245 {
2246 __s64 now;
2247
2248 if (common_args_process(argc, argv, 2, 2, argv[0],
2249 "<time>", 0))
2250 return;
2251
2252 now = string_to_time(argv[1]);
2253 if (now == -1) {
2254 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2255 argv[1]);
2256 return;
2257
2258 } else {
2259 printf("Setting current time to %s\n", time_to_string(now));
2260 current_fs->now = now;
2261 }
2262 }
2263 #endif /* READ_ONLY */
2264
2265 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2266 {
2267 int compat, bit, ret;
2268 unsigned int feature_mask;
2269
2270 if (name) {
2271 if (feature_type == E2P_FS_FEATURE)
2272 ret = e2p_string2feature(name, &compat, &feature_mask);
2273 else
2274 ret = e2p_jrnl_string2feature(name, &compat,
2275 &feature_mask);
2276 if (ret)
2277 return ret;
2278
2279 if (!(supp[compat] & feature_mask))
2280 return 1;
2281 } else {
2282 for (compat = 0; compat < 3; compat++) {
2283 for (bit = 0, feature_mask = 1; bit < 32;
2284 bit++, feature_mask <<= 1) {
2285 if (supp[compat] & feature_mask) {
2286 if (feature_type == E2P_FS_FEATURE)
2287 fprintf(stdout, " %s",
2288 e2p_feature2string(compat,
2289 feature_mask));
2290 else
2291 fprintf(stdout, " %s",
2292 e2p_jrnl_feature2string(compat,
2293 feature_mask));
2294 }
2295 }
2296 }
2297 fprintf(stdout, "\n");
2298 }
2299
2300 return 0;
2301 }
2302
2303 void do_supported_features(int argc, ss_argv_t argv,
2304 int sci_idx EXT2FS_ATTR((unused)),
2305 void *infop EXT2FS_ATTR((unused)))
2306 {
2307 int ret;
2308 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2309 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2310 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2311 __u32 jrnl_supp[3] = { JBD2_KNOWN_COMPAT_FEATURES,
2312 JBD2_KNOWN_INCOMPAT_FEATURES,
2313 JBD2_KNOWN_ROCOMPAT_FEATURES };
2314
2315 if (argc > 1) {
2316 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2317 if (ret) {
2318 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2319 argv[1]);
2320 }
2321 if (ret)
2322 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2323 else
2324 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2325 } else {
2326 fprintf(stdout, "Supported features:");
2327 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2328 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2329 }
2330 }
2331
2332 #ifndef READ_ONLY
2333 void do_punch(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2334 void *infop EXT2FS_ATTR((unused)))
2335 {
2336 ext2_ino_t ino;
2337 blk64_t start, end;
2338 int err;
2339 errcode_t errcode;
2340
2341 if (common_args_process(argc, argv, 3, 4, argv[0],
2342 "<file> start_blk [end_blk]",
2343 CHECK_FS_RW | CHECK_FS_BITMAPS))
2344 return;
2345
2346 ino = string_to_inode(argv[1]);
2347 if (!ino)
2348 return;
2349 err = strtoblk(argv[0], argv[2], "logical block", &start);
2350 if (err)
2351 return;
2352 if (argc == 4) {
2353 err = strtoblk(argv[0], argv[3], "logical block", &end);
2354 if (err)
2355 return;
2356 } else
2357 end = ~0;
2358
2359 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2360
2361 if (errcode) {
2362 com_err(argv[0], errcode,
2363 "while truncating inode %u from %llu to %llu\n", ino,
2364 (unsigned long long) start, (unsigned long long) end);
2365 return;
2366 }
2367 }
2368
2369 void do_fallocate(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2370 void *infop EXT2FS_ATTR((unused)))
2371 {
2372 ext2_ino_t ino;
2373 blk64_t start, end;
2374 int err;
2375 errcode_t errcode;
2376
2377 if (common_args_process(argc, argv, 3, 4, argv[0],
2378 "<file> start_blk [end_blk]",
2379 CHECK_FS_RW | CHECK_FS_BITMAPS))
2380 return;
2381
2382 ino = string_to_inode(argv[1]);
2383 if (!ino)
2384 return;
2385 err = strtoblk(argv[0], argv[2], "logical block", &start);
2386 if (err)
2387 return;
2388 if (argc == 4) {
2389 err = strtoblk(argv[0], argv[3], "logical block", &end);
2390 if (err)
2391 return;
2392 } else
2393 end = ~0;
2394
2395 errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2396 ino, NULL, ~0ULL, start, end - start + 1);
2397
2398 if (errcode) {
2399 com_err(argv[0], errcode,
2400 "while fallocating inode %u from %llu to %llu\n", ino,
2401 (unsigned long long) start, (unsigned long long) end);
2402 return;
2403 }
2404 }
2405
2406 void do_symlink(int argc, ss_argv_t argv, int sci_idx EXT2FS_ATTR((unused)),
2407 void *infop EXT2FS_ATTR((unused)))
2408 {
2409 errcode_t retval;
2410
2411 if (common_args_process(argc, argv, 3, 3, "symlink",
2412 "<filename> <target>", CHECK_FS_RW))
2413 return;
2414
2415 retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2416 if (retval)
2417 com_err(argv[0], retval, 0);
2418
2419 }
2420 #endif /* READ_ONLY */
2421
2422 #if CONFIG_MMP
2423 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), ss_argv_t argv,
2424 int sci_idx EXT2FS_ATTR((unused)),
2425 void *infop EXT2FS_ATTR((unused)))
2426 {
2427 struct mmp_struct *mmp_s;
2428 unsigned long long mmp_block;
2429 time_t t;
2430 errcode_t retval = 0;
2431
2432 if (check_fs_open(argv[0]))
2433 return;
2434
2435 if (argc > 1) {
2436 char *end = NULL;
2437 mmp_block = strtoull(argv[1], &end, 0);
2438 if (end == argv[0] || mmp_block == 0) {
2439 fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2440 argv[0], argv[1]);
2441 return;
2442 }
2443 } else {
2444 mmp_block = current_fs->super->s_mmp_block;
2445 }
2446
2447 if (mmp_block == 0) {
2448 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2449 argv[0]);
2450 return;
2451 }
2452
2453 if (current_fs->mmp_buf == NULL) {
2454 retval = ext2fs_get_mem(current_fs->blocksize,
2455 &current_fs->mmp_buf);
2456 if (retval) {
2457 com_err(argv[0], retval, "allocating MMP buffer.\n");
2458 return;
2459 }
2460 }
2461
2462 mmp_s = current_fs->mmp_buf;
2463
2464 retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2465 if (retval) {
2466 com_err(argv[0], retval, "reading MMP block %llu.\n",
2467 (unsigned long long) mmp_block);
2468 return;
2469 }
2470
2471 t = mmp_s->mmp_time;
2472 fprintf(stdout, "block_number: %llu\n",
2473 (unsigned long long) current_fs->super->s_mmp_block);
2474 fprintf(stdout, "update_interval: %d\n",
2475 current_fs->super->s_mmp_update_interval);
2476 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2477 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2478 fprintf(stdout, "time: %llu -- %s",
2479 (unsigned long long) mmp_s->mmp_time, ctime(&t));
2480 fprintf(stdout, "node_name: %.*s\n",
2481 EXT2_LEN_STR(mmp_s->mmp_nodename));
2482 fprintf(stdout, "device_name: %.*s\n",
2483 EXT2_LEN_STR(mmp_s->mmp_bdevname));
2484 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2485 fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2486 }
2487 #else
2488 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2489 ss_argv_t argv EXT2FS_ATTR((unused)),
2490 int sci_idx EXT2FS_ATTR((unused)),
2491 void *infop EXT2FS_ATTR((unused)))
2492 {
2493 fprintf(stdout, "MMP is unsupported, please recompile with "
2494 "--enable-mmp\n");
2495 }
2496 #endif
2497
2498 static int source_file(const char *cmd_file, int ss_idx)
2499 {
2500 FILE *f;
2501 char buf[BUFSIZ];
2502 char *cp;
2503 int exit_status = 0;
2504 int retval;
2505
2506 if (strcmp(cmd_file, "-") == 0)
2507 f = stdin;
2508 else {
2509 f = fopen(cmd_file, "r");
2510 if (!f) {
2511 perror(cmd_file);
2512 exit(1);
2513 }
2514 }
2515 fflush(stdout);
2516 fflush(stderr);
2517 setbuf(stdout, NULL);
2518 setbuf(stderr, NULL);
2519 while (!feof(f)) {
2520 if (fgets(buf, sizeof(buf), f) == NULL)
2521 break;
2522 if (buf[0] == '#') {
2523 printf("%s", buf);
2524 continue;
2525 }
2526 cp = strchr(buf, '\n');
2527 if (cp)
2528 *cp = 0;
2529 cp = strchr(buf, '\r');
2530 if (cp)
2531 *cp = 0;
2532 printf("debugfs: %s\n", buf);
2533 retval = ss_execute_line(ss_idx, buf);
2534 if (retval) {
2535 ss_perror(ss_idx, retval, buf);
2536 exit_status++;
2537 }
2538 }
2539 if (f != stdin)
2540 fclose(f);
2541 return exit_status;
2542 }
2543
2544 int main(int argc, char **argv)
2545 {
2546 int retval;
2547 const char *usage =
2548 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2549 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2550 #ifndef READ_ONLY
2551 "[-w] [-z undo_file] "
2552 #endif
2553 "[-c]] [device]";
2554 int c;
2555 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES |
2556 EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
2557 char *request = 0;
2558 int exit_status = 0;
2559 char *cmd_file = 0;
2560 blk64_t superblock = 0;
2561 blk64_t blocksize = 0;
2562 int catastrophic = 0;
2563 char *data_filename = 0;
2564 #ifdef READ_ONLY
2565 const char *opt_string = "nicR:f:b:s:Vd:D";
2566 #else
2567 const char *opt_string = "niwcR:f:b:s:Vd:Dz:";
2568 #endif
2569 char *undo_file = NULL;
2570 #ifdef CONFIG_JBD_DEBUG
2571 char *jbd_debug;
2572 #endif
2573
2574 if (debug_prog_name == 0)
2575 #ifdef READ_ONLY
2576 debug_prog_name = "rdebugfs";
2577 #else
2578 debug_prog_name = "debugfs";
2579 #endif
2580 add_error_table(&et_ext2_error_table);
2581 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2582 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2583
2584 #ifdef CONFIG_JBD_DEBUG
2585 jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2586 if (jbd_debug) {
2587 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2588
2589 if (res != 1) {
2590 fprintf(stderr,
2591 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2592 jbd_debug);
2593 exit(1);
2594 }
2595 }
2596 #endif
2597 while ((c = getopt (argc, argv, opt_string)) != EOF) {
2598 switch (c) {
2599 case 'R':
2600 request = optarg;
2601 break;
2602 case 'f':
2603 cmd_file = optarg;
2604 break;
2605 case 'd':
2606 data_filename = optarg;
2607 break;
2608 case 'i':
2609 open_flags |= EXT2_FLAG_IMAGE_FILE;
2610 break;
2611 case 'n':
2612 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2613 break;
2614 #ifndef READ_ONLY
2615 case 'w':
2616 open_flags |= EXT2_FLAG_RW;
2617 break;
2618 #endif
2619 case 'D':
2620 open_flags |= EXT2_FLAG_DIRECT_IO;
2621 break;
2622 case 'b':
2623 blocksize = parse_ulong(optarg, argv[0],
2624 "block size", 0);
2625 break;
2626 case 's':
2627 retval = strtoblk(argv[0], optarg,
2628 "superblock block number",
2629 &superblock);
2630 if (retval)
2631 return 1;
2632 break;
2633 case 'c':
2634 catastrophic = 1;
2635 break;
2636 case 'V':
2637 /* Print version number and exit */
2638 fprintf(stderr, "\tUsing %s\n",
2639 error_message(EXT2_ET_BASE));
2640 exit(0);
2641 #ifndef READ_ONLY
2642 case 'z':
2643 undo_file = optarg;
2644 break;
2645 #endif
2646 default:
2647 com_err(argv[0], 0, usage, debug_prog_name);
2648 return 1;
2649 }
2650 }
2651 if (optind < argc)
2652 open_filesystem(argv[optind], open_flags,
2653 superblock, blocksize, catastrophic,
2654 data_filename, undo_file);
2655
2656 ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2657 &debug_cmds, &retval);
2658 if (retval) {
2659 ss_perror(ss_sci_idx, retval, "creating invocation");
2660 exit(1);
2661 }
2662 ss_get_readline(ss_sci_idx);
2663
2664 (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
2665 if (retval) {
2666 ss_perror(ss_sci_idx, retval, "adding standard requests");
2667 exit (1);
2668 }
2669 if (extra_cmds)
2670 ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
2671 if (retval) {
2672 ss_perror(ss_sci_idx, retval, "adding extra requests");
2673 exit (1);
2674 }
2675 if (request) {
2676 retval = 0;
2677 retval = ss_execute_line(ss_sci_idx, request);
2678 if (retval) {
2679 ss_perror(ss_sci_idx, retval, request);
2680 exit_status++;
2681 }
2682 } else if (cmd_file) {
2683 exit_status = source_file(cmd_file, ss_sci_idx);
2684 } else {
2685 ss_listen(ss_sci_idx);
2686 }
2687
2688 ss_delete_invocation(ss_sci_idx);
2689
2690 if (current_fs)
2691 close_filesystem();
2692
2693 remove_error_table(&et_ext2_error_table);
2694 return exit_status;
2695 }
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