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 ss_request_table *extra_cmds;
52 const char *debug_prog_name;
53 int sci_idx;
54
55 ext2_filsys current_fs;
56 quota_ctx_t current_qctx;
57 ext2_ino_t root, cwd;
58
debugfs_setup_tdb(const char * device_name,char * undo_file,io_manager * io_ptr)59 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
60 io_manager *io_ptr)
61 {
62 errcode_t retval = ENOMEM;
63 char *tdb_dir = NULL, *tdb_file = NULL;
64 char *dev_name, *tmp_name;
65
66 /* (re)open a specific undo file */
67 if (undo_file && undo_file[0] != 0) {
68 retval = set_undo_io_backing_manager(*io_ptr);
69 if (retval)
70 goto err;
71 *io_ptr = undo_io_manager;
72 retval = set_undo_io_backup_file(undo_file);
73 if (retval)
74 goto err;
75 printf("Overwriting existing filesystem; this can be undone "
76 "using the command:\n"
77 " e2undo %s %s\n\n",
78 undo_file, device_name);
79 return retval;
80 }
81
82 /*
83 * Configuration via a conf file would be
84 * nice
85 */
86 tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
87 if (!tdb_dir)
88 tdb_dir = "/var/lib/e2fsprogs";
89
90 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
91 access(tdb_dir, W_OK))
92 return 0;
93
94 tmp_name = strdup(device_name);
95 if (!tmp_name)
96 goto errout;
97 dev_name = basename(tmp_name);
98 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
99 if (!tdb_file) {
100 free(tmp_name);
101 goto errout;
102 }
103 sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
104 free(tmp_name);
105
106 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
107 retval = errno;
108 com_err("debugfs", retval,
109 "while trying to delete %s", tdb_file);
110 goto errout;
111 }
112
113 retval = set_undo_io_backing_manager(*io_ptr);
114 if (retval)
115 goto errout;
116 *io_ptr = undo_io_manager;
117 retval = set_undo_io_backup_file(tdb_file);
118 if (retval)
119 goto errout;
120 printf("Overwriting existing filesystem; this can be undone "
121 "using the command:\n"
122 " e2undo %s %s\n\n", tdb_file, device_name);
123
124 free(tdb_file);
125 return 0;
126 errout:
127 free(tdb_file);
128 err:
129 com_err("debugfs", retval, "while trying to setup undo file\n");
130 return retval;
131 }
132
open_filesystem(char * device,int open_flags,blk64_t superblock,blk64_t blocksize,int catastrophic,char * data_filename,char * undo_file)133 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
134 blk64_t blocksize, int catastrophic,
135 char *data_filename, char *undo_file)
136 {
137 int retval;
138 io_channel data_io = 0;
139 io_manager io_ptr = unix_io_manager;
140
141 if (superblock != 0 && blocksize == 0) {
142 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
143 current_fs = NULL;
144 return;
145 }
146
147 if (data_filename) {
148 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
149 com_err(device, 0,
150 "The -d option is only valid when reading an e2image file");
151 current_fs = NULL;
152 return;
153 }
154 retval = unix_io_manager->open(data_filename, 0, &data_io);
155 if (retval) {
156 com_err(data_filename, 0, "while opening data source");
157 current_fs = NULL;
158 return;
159 }
160 }
161
162 if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
163 com_err(device, 0,
164 "opening read-only because of catastrophic mode");
165 open_flags &= ~EXT2_FLAG_RW;
166 }
167 if (catastrophic)
168 open_flags |= EXT2_FLAG_SKIP_MMP;
169
170 if (undo_file) {
171 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
172 if (retval)
173 exit(1);
174 }
175
176 retval = ext2fs_open(device, open_flags, superblock, blocksize,
177 io_ptr, ¤t_fs);
178 if (retval) {
179 com_err(device, retval, "while opening filesystem");
180 if (retval == EXT2_ET_BAD_MAGIC)
181 check_plausibility(device, CHECK_FS_EXIST, NULL);
182 current_fs = NULL;
183 return;
184 }
185 current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
186
187 if (catastrophic)
188 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
189 else {
190 retval = ext2fs_read_inode_bitmap(current_fs);
191 if (retval) {
192 com_err(device, retval, "while reading inode bitmap");
193 goto errout;
194 }
195 retval = ext2fs_read_block_bitmap(current_fs);
196 if (retval) {
197 com_err(device, retval, "while reading block bitmap");
198 goto errout;
199 }
200 }
201
202 if (data_io) {
203 retval = ext2fs_set_data_io(current_fs, data_io);
204 if (retval) {
205 com_err(device, retval,
206 "while setting data source");
207 goto errout;
208 }
209 }
210
211 root = cwd = EXT2_ROOT_INO;
212 return;
213
214 errout:
215 retval = ext2fs_close_free(¤t_fs);
216 if (retval)
217 com_err(device, retval, "while trying to close filesystem");
218 }
219
do_open_filesys(int argc,char ** argv)220 void do_open_filesys(int argc, char **argv)
221 {
222 int c, err;
223 int catastrophic = 0;
224 blk64_t superblock = 0;
225 blk64_t blocksize = 0;
226 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
227 char *data_filename = 0;
228 char *undo_file = NULL;
229
230 reset_getopt();
231 while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
232 switch (c) {
233 case 'i':
234 open_flags |= EXT2_FLAG_IMAGE_FILE;
235 break;
236 case 'w':
237 #ifdef READ_ONLY
238 goto print_usage;
239 #else
240 open_flags |= EXT2_FLAG_RW;
241 #endif /* READ_ONLY */
242 break;
243 case 'f':
244 open_flags |= EXT2_FLAG_FORCE;
245 break;
246 case 'e':
247 open_flags |= EXT2_FLAG_EXCLUSIVE;
248 break;
249 case 'c':
250 catastrophic = 1;
251 break;
252 case 'd':
253 data_filename = optarg;
254 break;
255 case 'D':
256 open_flags |= EXT2_FLAG_DIRECT_IO;
257 break;
258 case 'b':
259 blocksize = parse_ulong(optarg, argv[0],
260 "block size", &err);
261 if (err)
262 return;
263 break;
264 case 's':
265 err = strtoblk(argv[0], optarg,
266 "superblock block number", &superblock);
267 if (err)
268 return;
269 break;
270 case 'z':
271 undo_file = optarg;
272 break;
273 default:
274 goto print_usage;
275 }
276 }
277 if (optind != argc-1) {
278 goto print_usage;
279 }
280 if (check_fs_not_open(argv[0]))
281 return;
282 open_filesystem(argv[optind], open_flags,
283 superblock, blocksize, catastrophic,
284 data_filename, undo_file);
285 return;
286
287 print_usage:
288 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
289 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] "
290 #ifndef READ_ONLY
291 "[-w] "
292 #endif
293 "<device>\n", argv[0]);
294 }
295
do_lcd(int argc,char ** argv)296 void do_lcd(int argc, char **argv)
297 {
298 if (argc != 2) {
299 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
300 return;
301 }
302
303 if (chdir(argv[1]) == -1) {
304 com_err(argv[0], errno,
305 "while trying to change native directory to %s",
306 argv[1]);
307 return;
308 }
309 }
310
close_filesystem(NOARGS)311 static void close_filesystem(NOARGS)
312 {
313 int retval;
314
315 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
316 retval = ext2fs_write_inode_bitmap(current_fs);
317 if (retval)
318 com_err("ext2fs_write_inode_bitmap", retval, 0);
319 }
320 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
321 retval = ext2fs_write_block_bitmap(current_fs);
322 if (retval)
323 com_err("ext2fs_write_block_bitmap", retval, 0);
324 }
325 if (current_qctx)
326 quota_release_context(¤t_qctx);
327 retval = ext2fs_close_free(¤t_fs);
328 if (retval)
329 com_err("ext2fs_close", retval, 0);
330 return;
331 }
332
do_close_filesys(int argc,char ** argv)333 void do_close_filesys(int argc, char **argv)
334 {
335 int c;
336
337 if (check_fs_open(argv[0]))
338 return;
339
340 reset_getopt();
341 while ((c = getopt (argc, argv, "a")) != EOF) {
342 switch (c) {
343 case 'a':
344 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
345 break;
346 default:
347 goto print_usage;
348 }
349 }
350
351 if (argc > optind) {
352 print_usage:
353 com_err(0, 0, "Usage: close_filesys [-a]");
354 return;
355 }
356
357 close_filesystem();
358 }
359
360 #ifndef READ_ONLY
do_init_filesys(int argc,char ** argv)361 void do_init_filesys(int argc, char **argv)
362 {
363 struct ext2_super_block param;
364 errcode_t retval;
365 int err;
366 blk64_t blocks;
367
368 if (common_args_process(argc, argv, 3, 3, "initialize",
369 "<device> <blocks>", CHECK_FS_NOTOPEN))
370 return;
371
372 memset(¶m, 0, sizeof(struct ext2_super_block));
373 err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
374 if (err)
375 return;
376 ext2fs_blocks_count_set(¶m, blocks);
377 retval = ext2fs_initialize(argv[1], 0, ¶m,
378 unix_io_manager, ¤t_fs);
379 if (retval) {
380 com_err(argv[1], retval, "while initializing filesystem");
381 current_fs = NULL;
382 return;
383 }
384 root = cwd = EXT2_ROOT_INO;
385 return;
386 }
387
print_features(struct ext2_super_block * s,FILE * f)388 static void print_features(struct ext2_super_block * s, FILE *f)
389 {
390 int i, j, printed=0;
391 __u32 *mask = &s->s_feature_compat, m;
392
393 fputs("Filesystem features:", f);
394 for (i=0; i <3; i++,mask++) {
395 for (j=0,m=1; j < 32; j++, m<<=1) {
396 if (*mask & m) {
397 fprintf(f, " %s", e2p_feature2string(i, m));
398 printed++;
399 }
400 }
401 }
402 if (printed == 0)
403 fputs("(none)", f);
404 fputs("\n", f);
405 }
406 #endif /* READ_ONLY */
407
print_bg_opts(ext2_filsys fs,dgrp_t group,int mask,const char * str,int * first,FILE * f)408 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
409 const char *str, int *first, FILE *f)
410 {
411 if (ext2fs_bg_flags_test(fs, group, mask)) {
412 if (*first) {
413 fputs(" [", f);
414 *first = 0;
415 } else
416 fputs(", ", f);
417 fputs(str, f);
418 }
419 }
420
do_show_super_stats(int argc,char * argv[])421 void do_show_super_stats(int argc, char *argv[])
422 {
423 const char *units ="block";
424 dgrp_t i;
425 FILE *out;
426 int c, header_only = 0;
427 int numdirs = 0, first, gdt_csum;
428
429 reset_getopt();
430 while ((c = getopt (argc, argv, "h")) != EOF) {
431 switch (c) {
432 case 'h':
433 header_only++;
434 break;
435 default:
436 goto print_usage;
437 }
438 }
439 if (optind != argc) {
440 goto print_usage;
441 }
442 if (check_fs_open(argv[0]))
443 return;
444 out = open_pager();
445
446 if (ext2fs_has_feature_bigalloc(current_fs->super))
447 units = "cluster";
448
449 list_super2(current_fs->super, out);
450 for (i=0; i < current_fs->group_desc_count; i++)
451 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
452 fprintf(out, "Directories: %d\n", numdirs);
453
454 if (header_only) {
455 close_pager(out);
456 return;
457 }
458
459 gdt_csum = ext2fs_has_group_desc_csum(current_fs);
460 for (i = 0; i < current_fs->group_desc_count; i++) {
461 fprintf(out, " Group %2d: block bitmap at %llu, "
462 "inode bitmap at %llu, "
463 "inode table at %llu\n"
464 " %u free %s%s, "
465 "%u free %s, "
466 "%u used %s%s",
467 i, ext2fs_block_bitmap_loc(current_fs, i),
468 ext2fs_inode_bitmap_loc(current_fs, i),
469 ext2fs_inode_table_loc(current_fs, i),
470 ext2fs_bg_free_blocks_count(current_fs, i), units,
471 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
472 "s" : "",
473 ext2fs_bg_free_inodes_count(current_fs, i),
474 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
475 "inodes" : "inode",
476 ext2fs_bg_used_dirs_count(current_fs, i),
477 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
478 : "directory", gdt_csum ? ", " : "\n");
479 if (gdt_csum)
480 fprintf(out, "%u unused %s\n",
481 ext2fs_bg_itable_unused(current_fs, i),
482 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
483 "inodes" : "inode");
484 first = 1;
485 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
486 &first, out);
487 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
488 &first, out);
489 if (gdt_csum) {
490 fprintf(out, "%sChecksum 0x%04x",
491 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
492 first = 0;
493 }
494 if (!first)
495 fputs("]\n", out);
496 }
497 close_pager(out);
498 return;
499 print_usage:
500 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
501 }
502
503 #ifndef READ_ONLY
do_dirty_filesys(int argc EXT2FS_ATTR ((unused)),char ** argv EXT2FS_ATTR ((unused)))504 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
505 char **argv EXT2FS_ATTR((unused)))
506 {
507 if (check_fs_open(argv[0]))
508 return;
509 if (check_fs_read_write(argv[0]))
510 return;
511
512 if (argv[1] && !strcmp(argv[1], "-clean"))
513 current_fs->super->s_state |= EXT2_VALID_FS;
514 else
515 current_fs->super->s_state &= ~EXT2_VALID_FS;
516 ext2fs_mark_super_dirty(current_fs);
517 }
518 #endif /* READ_ONLY */
519
520 struct list_blocks_struct {
521 FILE *f;
522 e2_blkcnt_t total;
523 blk64_t first_block, last_block;
524 e2_blkcnt_t first_bcnt, last_bcnt;
525 e2_blkcnt_t first;
526 };
527
finish_range(struct list_blocks_struct * lb)528 static void finish_range(struct list_blocks_struct *lb)
529 {
530 if (lb->first_block == 0)
531 return;
532 if (lb->first)
533 lb->first = 0;
534 else
535 fprintf(lb->f, ", ");
536 if (lb->first_block == lb->last_block)
537 fprintf(lb->f, "(%lld):%llu",
538 (long long)lb->first_bcnt, lb->first_block);
539 else
540 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
541 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
542 lb->first_block, lb->last_block);
543 lb->first_block = 0;
544 }
545
list_blocks_proc(ext2_filsys fs EXT2FS_ATTR ((unused)),blk64_t * blocknr,e2_blkcnt_t blockcnt,blk64_t ref_block EXT2FS_ATTR ((unused)),int ref_offset EXT2FS_ATTR ((unused)),void * private)546 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
547 blk64_t *blocknr, e2_blkcnt_t blockcnt,
548 blk64_t ref_block EXT2FS_ATTR((unused)),
549 int ref_offset EXT2FS_ATTR((unused)),
550 void *private)
551 {
552 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
553
554 lb->total++;
555 if (blockcnt >= 0) {
556 /*
557 * See if we can add on to the existing range (if it exists)
558 */
559 if (lb->first_block &&
560 (lb->last_block+1 == *blocknr) &&
561 (lb->last_bcnt+1 == blockcnt)) {
562 lb->last_block = *blocknr;
563 lb->last_bcnt = blockcnt;
564 return 0;
565 }
566 /*
567 * Start a new range.
568 */
569 finish_range(lb);
570 lb->first_block = lb->last_block = *blocknr;
571 lb->first_bcnt = lb->last_bcnt = blockcnt;
572 return 0;
573 }
574 /*
575 * Not a normal block. Always force a new range.
576 */
577 finish_range(lb);
578 if (lb->first)
579 lb->first = 0;
580 else
581 fprintf(lb->f, ", ");
582 if (blockcnt == -1)
583 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
584 else if (blockcnt == -2)
585 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
586 else if (blockcnt == -3)
587 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
588 return 0;
589 }
590
internal_dump_inode_extra(FILE * out,const char * prefix EXT2FS_ATTR ((unused)),ext2_ino_t inode_num EXT2FS_ATTR ((unused)),struct ext2_inode_large * inode)591 static void internal_dump_inode_extra(FILE *out,
592 const char *prefix EXT2FS_ATTR((unused)),
593 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
594 struct ext2_inode_large *inode)
595 {
596 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
597 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
598 EXT2_GOOD_OLD_INODE_SIZE) {
599 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
600 inode->i_extra_isize);
601 return;
602 }
603 }
604
dump_blocks(FILE * f,const char * prefix,ext2_ino_t inode)605 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
606 {
607 struct list_blocks_struct lb;
608
609 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
610 lb.total = 0;
611 lb.first_block = 0;
612 lb.f = f;
613 lb.first = 1;
614 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
615 list_blocks_proc, (void *)&lb);
616 finish_range(&lb);
617 if (lb.total)
618 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
619 fprintf(f,"\n");
620 }
621
int_log10(unsigned long long arg)622 static int int_log10(unsigned long long arg)
623 {
624 int l = 0;
625
626 arg = arg / 10;
627 while (arg) {
628 l++;
629 arg = arg / 10;
630 }
631 return l;
632 }
633
634 #define DUMP_LEAF_EXTENTS 0x01
635 #define DUMP_NODE_EXTENTS 0x02
636 #define DUMP_EXTENT_TABLE 0x04
637
dump_extents(FILE * f,const char * prefix,ext2_ino_t ino,int flags,int logical_width,int physical_width)638 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
639 int flags, int logical_width, int physical_width)
640 {
641 ext2_extent_handle_t handle;
642 struct ext2fs_extent extent;
643 struct ext2_extent_info info;
644 int op = EXT2_EXTENT_ROOT;
645 unsigned int printed = 0;
646 errcode_t errcode;
647
648 errcode = ext2fs_extent_open(current_fs, ino, &handle);
649 if (errcode)
650 return;
651
652 if (flags & DUMP_EXTENT_TABLE)
653 fprintf(f, "Level Entries %*s %*s Length Flags\n",
654 (logical_width*2)+3, "Logical",
655 (physical_width*2)+3, "Physical");
656 else
657 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
658
659 while (1) {
660 errcode = ext2fs_extent_get(handle, op, &extent);
661
662 if (errcode)
663 break;
664
665 op = EXT2_EXTENT_NEXT;
666
667 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
668 continue;
669
670 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
671 if ((flags & DUMP_LEAF_EXTENTS) == 0)
672 continue;
673 } else {
674 if ((flags & DUMP_NODE_EXTENTS) == 0)
675 continue;
676 }
677
678 errcode = ext2fs_extent_get_info(handle, &info);
679 if (errcode)
680 continue;
681
682 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
683 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
684 continue;
685
686 if (flags & DUMP_EXTENT_TABLE) {
687 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
688 "%*llu%*s %6u\n",
689 info.curr_level, info.max_depth,
690 info.curr_entry, info.num_entries,
691 logical_width,
692 extent.e_lblk,
693 logical_width,
694 extent.e_lblk + (extent.e_len - 1),
695 physical_width,
696 extent.e_pblk,
697 physical_width+3, "", extent.e_len);
698 continue;
699 }
700
701 fprintf(f, "%s(ETB%d):%lld",
702 printed ? ", " : "", info.curr_level,
703 extent.e_pblk);
704 printed = 1;
705 continue;
706 }
707
708 if (flags & DUMP_EXTENT_TABLE) {
709 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
710 "%*llu - %*llu %6u %s\n",
711 info.curr_level, info.max_depth,
712 info.curr_entry, info.num_entries,
713 logical_width,
714 extent.e_lblk,
715 logical_width,
716 extent.e_lblk + (extent.e_len - 1),
717 physical_width,
718 extent.e_pblk,
719 physical_width,
720 extent.e_pblk + (extent.e_len - 1),
721 extent.e_len,
722 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
723 "Uninit" : "");
724 continue;
725 }
726
727 if (extent.e_len == 0)
728 continue;
729 else if (extent.e_len == 1)
730 fprintf(f,
731 "%s(%lld%s):%lld",
732 printed ? ", " : "",
733 extent.e_lblk,
734 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
735 "[u]" : "",
736 extent.e_pblk);
737 else
738 fprintf(f,
739 "%s(%lld-%lld%s):%lld-%lld",
740 printed ? ", " : "",
741 extent.e_lblk,
742 extent.e_lblk + (extent.e_len - 1),
743 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
744 "[u]" : "",
745 extent.e_pblk,
746 extent.e_pblk + (extent.e_len - 1));
747 printed = 1;
748 }
749 if (printed)
750 fprintf(f, "\n");
751 ext2fs_extent_free(handle);
752 }
753
dump_inline_data(FILE * out,const char * prefix,ext2_ino_t inode_num)754 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
755 {
756 errcode_t retval;
757 size_t size;
758
759 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
760 if (!retval)
761 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
762 }
763
dump_fast_link(FILE * out,ext2_ino_t inode_num,struct ext2_inode * inode,const char * prefix)764 static void dump_fast_link(FILE *out, ext2_ino_t inode_num,
765 struct ext2_inode *inode, const char *prefix)
766 {
767 errcode_t retval = 0;
768 char *buf;
769 size_t size;
770
771 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
772 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
773 if (retval)
774 goto out;
775
776 retval = ext2fs_get_memzero(size + 1, &buf);
777 if (retval)
778 goto out;
779
780 retval = ext2fs_inline_data_get(current_fs, inode_num,
781 inode, buf, &size);
782 if (retval)
783 goto out;
784 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
785 (int)size, buf);
786
787 retval = ext2fs_free_mem(&buf);
788 if (retval)
789 goto out;
790 } else {
791 size_t sz = EXT2_I_SIZE(inode);
792
793 if (sz > sizeof(inode->i_block))
794 sz = sizeof(inode->i_block);
795 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix, (int) sz,
796 (char *)inode->i_block);
797 }
798 out:
799 if (retval)
800 com_err(__func__, retval, "while dumping link destination");
801 }
802
internal_dump_inode(FILE * out,const char * prefix,ext2_ino_t inode_num,struct ext2_inode * inode,int do_dump_blocks)803 void internal_dump_inode(FILE *out, const char *prefix,
804 ext2_ino_t inode_num, struct ext2_inode *inode,
805 int do_dump_blocks)
806 {
807 const char *i_type;
808 char frag, fsize;
809 int os = current_fs->super->s_creator_os;
810 struct ext2_inode_large *large_inode;
811 int is_large_inode = 0;
812
813 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
814 is_large_inode = 1;
815 large_inode = (struct ext2_inode_large *) inode;
816
817 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
818 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
819 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
820 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
821 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
822 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
823 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
824 else i_type = "bad type";
825 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
826 fprintf(out, "%sMode: %04o Flags: 0x%x\n",
827 prefix, inode->i_mode & 0777, inode->i_flags);
828 if (is_large_inode && large_inode->i_extra_isize >= 24) {
829 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
830 prefix, inode->i_generation, large_inode->i_version_hi,
831 inode->osd1.linux1.l_i_version);
832 } else {
833 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
834 inode->i_generation, inode->osd1.linux1.l_i_version);
835 }
836 fprintf(out, "%sUser: %5d Group: %5d",
837 prefix, inode_uid(*inode), inode_gid(*inode));
838 if (is_large_inode && large_inode->i_extra_isize >= 32)
839 fprintf(out, " Project: %5d", large_inode->i_projid);
840 fputs(" Size: ", out);
841 if (LINUX_S_ISREG(inode->i_mode))
842 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
843 else
844 fprintf(out, "%d\n", inode->i_size);
845 if (os == EXT2_OS_HURD)
846 fprintf(out,
847 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
848 prefix,
849 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
850 inode->osd1.hurd1.h_i_translator);
851 else
852 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n",
853 prefix,
854 inode->i_file_acl | ((long long)
855 (inode->osd2.linux2.l_i_file_acl_high) << 32),
856 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
857 if (os != EXT2_OS_HURD)
858 fprintf(out, "%sLinks: %d Blockcount: %llu\n",
859 prefix, inode->i_links_count,
860 (((unsigned long long)
861 inode->osd2.linux2.l_i_blocks_hi << 32)) +
862 inode->i_blocks);
863 else
864 fprintf(out, "%sLinks: %d Blockcount: %u\n",
865 prefix, inode->i_links_count, inode->i_blocks);
866 switch (os) {
867 case EXT2_OS_HURD:
868 frag = inode->osd2.hurd2.h_i_frag;
869 fsize = inode->osd2.hurd2.h_i_fsize;
870 break;
871 default:
872 frag = fsize = 0;
873 }
874 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
875 prefix, inode->i_faddr, frag, fsize);
876 if (is_large_inode && large_inode->i_extra_isize >= 24) {
877 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
878 inode->i_ctime, large_inode->i_ctime_extra,
879 inode_time_to_string(inode->i_ctime,
880 large_inode->i_ctime_extra));
881 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
882 inode->i_atime, large_inode->i_atime_extra,
883 inode_time_to_string(inode->i_atime,
884 large_inode->i_atime_extra));
885 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
886 inode->i_mtime, large_inode->i_mtime_extra,
887 inode_time_to_string(inode->i_mtime,
888 large_inode->i_mtime_extra));
889 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
890 large_inode->i_crtime, large_inode->i_crtime_extra,
891 inode_time_to_string(large_inode->i_crtime,
892 large_inode->i_crtime_extra));
893 if (inode->i_dtime)
894 fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
895 large_inode->i_dtime, large_inode->i_ctime_extra,
896 inode_time_to_string(inode->i_dtime,
897 large_inode->i_ctime_extra));
898 } else {
899 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
900 time_to_string((__s32) inode->i_ctime));
901 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
902 time_to_string((__s32) inode->i_atime));
903 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
904 time_to_string((__s32) inode->i_mtime));
905 if (inode->i_dtime)
906 fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
907 inode->i_dtime,
908 time_to_string((__s32) inode->i_dtime));
909 }
910 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
911 internal_dump_inode_extra(out, prefix, inode_num,
912 (struct ext2_inode_large *) inode);
913 dump_inode_attributes(out, inode_num);
914 if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
915 __u32 crc = inode->i_checksum_lo;
916 if (is_large_inode &&
917 large_inode->i_extra_isize >=
918 (offsetof(struct ext2_inode_large,
919 i_checksum_hi) -
920 EXT2_GOOD_OLD_INODE_SIZE))
921 crc |= ((__u32)large_inode->i_checksum_hi) << 16;
922 fprintf(out, "Inode checksum: 0x%08x\n", crc);
923 }
924
925 if (LINUX_S_ISLNK(inode->i_mode) &&
926 ext2fs_inode_data_blocks(current_fs, inode) == 0)
927 dump_fast_link(out, inode_num, inode, prefix);
928 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
929 int major, minor;
930 const char *devnote;
931
932 if (inode->i_block[0]) {
933 major = (inode->i_block[0] >> 8) & 255;
934 minor = inode->i_block[0] & 255;
935 devnote = "";
936 } else {
937 major = (inode->i_block[1] & 0xfff00) >> 8;
938 minor = ((inode->i_block[1] & 0xff) |
939 ((inode->i_block[1] >> 12) & 0xfff00));
940 devnote = "(New-style) ";
941 }
942 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
943 devnote, major, minor, major, minor);
944 } else if (do_dump_blocks) {
945 if (inode->i_flags & EXT4_EXTENTS_FL)
946 dump_extents(out, prefix, inode_num,
947 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
948 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
949 dump_inline_data(out, prefix, inode_num);
950 else
951 dump_blocks(out, prefix, inode_num);
952 }
953 }
954
dump_inode(ext2_ino_t inode_num,struct ext2_inode * inode)955 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
956 {
957 FILE *out;
958
959 out = open_pager();
960 internal_dump_inode(out, "", inode_num, inode, 1);
961 close_pager(out);
962 }
963
do_stat(int argc,char * argv[])964 void do_stat(int argc, char *argv[])
965 {
966 ext2_ino_t inode;
967 struct ext2_inode * inode_buf;
968
969 if (check_fs_open(argv[0]))
970 return;
971
972 inode_buf = (struct ext2_inode *)
973 malloc(EXT2_INODE_SIZE(current_fs->super));
974 if (!inode_buf) {
975 fprintf(stderr, "do_stat: can't allocate buffer\n");
976 return;
977 }
978
979 if (common_inode_args_process(argc, argv, &inode, 0)) {
980 free(inode_buf);
981 return;
982 }
983
984 if (debugfs_read_inode_full(inode, inode_buf, argv[0],
985 EXT2_INODE_SIZE(current_fs->super))) {
986 free(inode_buf);
987 return;
988 }
989
990 dump_inode(inode, inode_buf);
991 free(inode_buf);
992 return;
993 }
994
do_dump_extents(int argc,char ** argv)995 void do_dump_extents(int argc, char **argv)
996 {
997 struct ext2_inode inode;
998 ext2_ino_t ino;
999 FILE *out;
1000 int c, flags = 0;
1001 int logical_width;
1002 int physical_width;
1003
1004 reset_getopt();
1005 while ((c = getopt(argc, argv, "nl")) != EOF) {
1006 switch (c) {
1007 case 'n':
1008 flags |= DUMP_NODE_EXTENTS;
1009 break;
1010 case 'l':
1011 flags |= DUMP_LEAF_EXTENTS;
1012 break;
1013 }
1014 }
1015
1016 if (argc != optind + 1) {
1017 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1018 return;
1019 }
1020
1021 if (flags == 0)
1022 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1023 flags |= DUMP_EXTENT_TABLE;
1024
1025 if (check_fs_open(argv[0]))
1026 return;
1027
1028 ino = string_to_inode(argv[optind]);
1029 if (ino == 0)
1030 return;
1031
1032 if (debugfs_read_inode(ino, &inode, argv[0]))
1033 return;
1034
1035 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1036 fprintf(stderr, "%s: does not uses extent block maps\n",
1037 argv[optind]);
1038 return;
1039 }
1040
1041 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1042 current_fs->blocksize) + 1;
1043 if (logical_width < 5)
1044 logical_width = 5;
1045 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1046 if (physical_width < 5)
1047 physical_width = 5;
1048
1049 out = open_pager();
1050 dump_extents(out, "", ino, flags, logical_width, physical_width);
1051 close_pager(out);
1052 return;
1053 }
1054
print_blocks_proc(ext2_filsys fs EXT2FS_ATTR ((unused)),blk64_t * blocknr,e2_blkcnt_t blockcnt EXT2FS_ATTR ((unused)),blk64_t ref_block EXT2FS_ATTR ((unused)),int ref_offset EXT2FS_ATTR ((unused)),void * private EXT2FS_ATTR ((unused)))1055 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1056 blk64_t *blocknr,
1057 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1058 blk64_t ref_block EXT2FS_ATTR((unused)),
1059 int ref_offset EXT2FS_ATTR((unused)),
1060 void *private EXT2FS_ATTR((unused)))
1061 {
1062 printf("%llu ", *blocknr);
1063 return 0;
1064 }
1065
do_blocks(int argc,char * argv[])1066 void do_blocks(int argc, char *argv[])
1067 {
1068 ext2_ino_t inode;
1069
1070 if (check_fs_open(argv[0]))
1071 return;
1072
1073 if (common_inode_args_process(argc, argv, &inode, 0)) {
1074 return;
1075 }
1076
1077 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1078 print_blocks_proc, NULL);
1079 fputc('\n', stdout);
1080 return;
1081 }
1082
do_chroot(int argc,char * argv[])1083 void do_chroot(int argc, char *argv[])
1084 {
1085 ext2_ino_t inode;
1086 int retval;
1087
1088 if (common_inode_args_process(argc, argv, &inode, 0))
1089 return;
1090
1091 retval = ext2fs_check_directory(current_fs, inode);
1092 if (retval) {
1093 com_err(argv[1], retval, 0);
1094 return;
1095 }
1096 root = inode;
1097 }
1098
1099 #ifndef READ_ONLY
do_clri(int argc,char * argv[])1100 void do_clri(int argc, char *argv[])
1101 {
1102 ext2_ino_t inode;
1103 struct ext2_inode inode_buf;
1104
1105 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1106 return;
1107
1108 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1109 return;
1110 memset(&inode_buf, 0, sizeof(inode_buf));
1111 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1112 return;
1113 }
1114
do_freei(int argc,char * argv[])1115 void do_freei(int argc, char *argv[])
1116 {
1117 unsigned int len = 1;
1118 int err = 0;
1119 ext2_ino_t inode;
1120
1121 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1122 CHECK_FS_RW | CHECK_FS_BITMAPS))
1123 return;
1124 if (check_fs_read_write(argv[0]))
1125 return;
1126
1127 inode = string_to_inode(argv[1]);
1128 if (!inode)
1129 return;
1130
1131 if (argc == 3) {
1132 len = parse_ulong(argv[2], argv[0], "length", &err);
1133 if (err)
1134 return;
1135 }
1136
1137 if (len == 1 &&
1138 !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1139 com_err(argv[0], 0, "Warning: inode already clear");
1140 while (len-- > 0)
1141 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1142 ext2fs_mark_ib_dirty(current_fs);
1143 }
1144
do_seti(int argc,char * argv[])1145 void do_seti(int argc, char *argv[])
1146 {
1147 unsigned int len = 1;
1148 int err = 0;
1149 ext2_ino_t inode;
1150
1151 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1152 CHECK_FS_RW | CHECK_FS_BITMAPS))
1153 return;
1154 if (check_fs_read_write(argv[0]))
1155 return;
1156
1157 inode = string_to_inode(argv[1]);
1158 if (!inode)
1159 return;
1160
1161 if (argc == 3) {
1162 len = parse_ulong(argv[2], argv[0], "length", &err);
1163 if (err)
1164 return;
1165 }
1166
1167 if ((len == 1) &&
1168 ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1169 com_err(argv[0], 0, "Warning: inode already set");
1170 while (len-- > 0)
1171 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1172 ext2fs_mark_ib_dirty(current_fs);
1173 }
1174 #endif /* READ_ONLY */
1175
do_testi(int argc,char * argv[])1176 void do_testi(int argc, char *argv[])
1177 {
1178 ext2_ino_t inode;
1179
1180 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1181 return;
1182
1183 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1184 printf("Inode %u is marked in use\n", inode);
1185 else
1186 printf("Inode %u is not in use\n", inode);
1187 }
1188
1189 #ifndef READ_ONLY
do_freeb(int argc,char * argv[])1190 void do_freeb(int argc, char *argv[])
1191 {
1192 blk64_t block;
1193 blk64_t count = 1;
1194
1195 if (common_block_args_process(argc, argv, &block, &count))
1196 return;
1197 if (check_fs_read_write(argv[0]))
1198 return;
1199 while (count-- > 0) {
1200 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1201 com_err(argv[0], 0, "Warning: block %llu already clear",
1202 block);
1203 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1204 block++;
1205 }
1206 ext2fs_mark_bb_dirty(current_fs);
1207 }
1208
do_setb(int argc,char * argv[])1209 void do_setb(int argc, char *argv[])
1210 {
1211 blk64_t block;
1212 blk64_t count = 1;
1213
1214 if (common_block_args_process(argc, argv, &block, &count))
1215 return;
1216 if (check_fs_read_write(argv[0]))
1217 return;
1218 while (count-- > 0) {
1219 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1220 com_err(argv[0], 0, "Warning: block %llu already set",
1221 block);
1222 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1223 block++;
1224 }
1225 ext2fs_mark_bb_dirty(current_fs);
1226 }
1227 #endif /* READ_ONLY */
1228
do_testb(int argc,char * argv[])1229 void do_testb(int argc, char *argv[])
1230 {
1231 blk64_t block;
1232 blk64_t count = 1;
1233
1234 if (common_block_args_process(argc, argv, &block, &count))
1235 return;
1236 while (count-- > 0) {
1237 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1238 printf("Block %llu marked in use\n", block);
1239 else
1240 printf("Block %llu not in use\n", block);
1241 block++;
1242 }
1243 }
1244
1245 #ifndef READ_ONLY
modify_u8(char * com,const char * prompt,const char * format,__u8 * val)1246 static void modify_u8(char *com, const char *prompt,
1247 const char *format, __u8 *val)
1248 {
1249 char buf[200];
1250 unsigned long v;
1251 char *tmp;
1252
1253 sprintf(buf, format, *val);
1254 printf("%30s [%s] ", prompt, buf);
1255 if (!fgets(buf, sizeof(buf), stdin))
1256 return;
1257 if (buf[strlen (buf) - 1] == '\n')
1258 buf[strlen (buf) - 1] = '\0';
1259 if (!buf[0])
1260 return;
1261 v = strtoul(buf, &tmp, 0);
1262 if (*tmp)
1263 com_err(com, 0, "Bad value - %s", buf);
1264 else
1265 *val = v;
1266 }
1267
modify_u16(char * com,const char * prompt,const char * format,__u16 * val)1268 static void modify_u16(char *com, const char *prompt,
1269 const char *format, __u16 *val)
1270 {
1271 char buf[200];
1272 unsigned long v;
1273 char *tmp;
1274
1275 sprintf(buf, format, *val);
1276 printf("%30s [%s] ", prompt, buf);
1277 if (!fgets(buf, sizeof(buf), stdin))
1278 return;
1279 if (buf[strlen (buf) - 1] == '\n')
1280 buf[strlen (buf) - 1] = '\0';
1281 if (!buf[0])
1282 return;
1283 v = strtoul(buf, &tmp, 0);
1284 if (*tmp)
1285 com_err(com, 0, "Bad value - %s", buf);
1286 else
1287 *val = v;
1288 }
1289
modify_u32(char * com,const char * prompt,const char * format,__u32 * val)1290 static void modify_u32(char *com, const char *prompt,
1291 const char *format, __u32 *val)
1292 {
1293 char buf[200];
1294 unsigned long v;
1295 char *tmp;
1296
1297 sprintf(buf, format, *val);
1298 printf("%30s [%s] ", prompt, buf);
1299 if (!fgets(buf, sizeof(buf), stdin))
1300 return;
1301 if (buf[strlen (buf) - 1] == '\n')
1302 buf[strlen (buf) - 1] = '\0';
1303 if (!buf[0])
1304 return;
1305 v = strtoul(buf, &tmp, 0);
1306 if (*tmp)
1307 com_err(com, 0, "Bad value - %s", buf);
1308 else
1309 *val = v;
1310 }
1311
1312
do_modify_inode(int argc,char * argv[])1313 void do_modify_inode(int argc, char *argv[])
1314 {
1315 struct ext2_inode inode;
1316 ext2_ino_t inode_num;
1317 int i;
1318 unsigned char *frag, *fsize;
1319 char buf[80];
1320 int os;
1321 const char *hex_format = "0x%x";
1322 const char *octal_format = "0%o";
1323 const char *decimal_format = "%d";
1324 const char *unsignedlong_format = "%lu";
1325
1326 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1327 return;
1328
1329 os = current_fs->super->s_creator_os;
1330
1331 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1332 return;
1333
1334 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1335 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1336 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1337 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1338 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1339 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1340 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1341 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1342 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1343 if (os == EXT2_OS_LINUX)
1344 modify_u16(argv[0], "Block count high", unsignedlong_format,
1345 &inode.osd2.linux2.l_i_blocks_hi);
1346 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1347 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1348 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1349 #if 0
1350 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1351 #endif
1352 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1353 if (LINUX_S_ISDIR(inode.i_mode))
1354 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1355 else
1356 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1357
1358 if (os == EXT2_OS_HURD)
1359 modify_u32(argv[0], "Translator Block",
1360 decimal_format, &inode.osd1.hurd1.h_i_translator);
1361
1362 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1363 switch (os) {
1364 case EXT2_OS_HURD:
1365 frag = &inode.osd2.hurd2.h_i_frag;
1366 fsize = &inode.osd2.hurd2.h_i_fsize;
1367 break;
1368 default:
1369 frag = fsize = 0;
1370 }
1371 if (frag)
1372 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1373 if (fsize)
1374 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1375
1376 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1377 sprintf(buf, "Direct Block #%d", i);
1378 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1379 }
1380 modify_u32(argv[0], "Indirect Block", decimal_format,
1381 &inode.i_block[EXT2_IND_BLOCK]);
1382 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1383 &inode.i_block[EXT2_DIND_BLOCK]);
1384 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1385 &inode.i_block[EXT2_TIND_BLOCK]);
1386 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1387 return;
1388 }
1389 #endif /* READ_ONLY */
1390
do_change_working_dir(int argc,char * argv[])1391 void do_change_working_dir(int argc, char *argv[])
1392 {
1393 ext2_ino_t inode;
1394 int retval;
1395
1396 if (common_inode_args_process(argc, argv, &inode, 0))
1397 return;
1398
1399 retval = ext2fs_check_directory(current_fs, inode);
1400 if (retval) {
1401 com_err(argv[1], retval, 0);
1402 return;
1403 }
1404 cwd = inode;
1405 return;
1406 }
1407
do_print_working_directory(int argc,char * argv[])1408 void do_print_working_directory(int argc, char *argv[])
1409 {
1410 int retval;
1411 char *pathname = NULL;
1412
1413 if (common_args_process(argc, argv, 1, 1,
1414 "print_working_directory", "", 0))
1415 return;
1416
1417 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1418 if (retval) {
1419 com_err(argv[0], retval,
1420 "while trying to get pathname of cwd");
1421 }
1422 printf("[pwd] INODE: %6u PATH: %s\n",
1423 cwd, pathname ? pathname : "NULL");
1424 if (pathname) {
1425 free(pathname);
1426 pathname = NULL;
1427 }
1428 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1429 if (retval) {
1430 com_err(argv[0], retval,
1431 "while trying to get pathname of root");
1432 }
1433 printf("[root] INODE: %6u PATH: %s\n",
1434 root, pathname ? pathname : "NULL");
1435 if (pathname) {
1436 free(pathname);
1437 pathname = NULL;
1438 }
1439 return;
1440 }
1441
1442 #ifndef READ_ONLY
make_link(char * sourcename,char * destname)1443 static void make_link(char *sourcename, char *destname)
1444 {
1445 ext2_ino_t ino;
1446 struct ext2_inode inode;
1447 int retval;
1448 ext2_ino_t dir;
1449 char *dest, *cp, *base_name;
1450
1451 /*
1452 * Get the source inode
1453 */
1454 ino = string_to_inode(sourcename);
1455 if (!ino)
1456 return;
1457 base_name = strrchr(sourcename, '/');
1458 if (base_name)
1459 base_name++;
1460 else
1461 base_name = sourcename;
1462 /*
1463 * Figure out the destination. First see if it exists and is
1464 * a directory.
1465 */
1466 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1467 dest = base_name;
1468 else {
1469 /*
1470 * OK, it doesn't exist. See if it is
1471 * '<dir>/basename' or 'basename'
1472 */
1473 cp = strrchr(destname, '/');
1474 if (cp) {
1475 *cp = 0;
1476 dir = string_to_inode(destname);
1477 if (!dir)
1478 return;
1479 dest = cp+1;
1480 } else {
1481 dir = cwd;
1482 dest = destname;
1483 }
1484 }
1485
1486 if (debugfs_read_inode(ino, &inode, sourcename))
1487 return;
1488
1489 retval = ext2fs_link(current_fs, dir, dest, ino,
1490 ext2_file_type(inode.i_mode));
1491 if (retval)
1492 com_err("make_link", retval, 0);
1493 return;
1494 }
1495
1496
do_link(int argc,char * argv[])1497 void do_link(int argc, char *argv[])
1498 {
1499 if (common_args_process(argc, argv, 3, 3, "link",
1500 "<source file> <dest_name>", CHECK_FS_RW))
1501 return;
1502
1503 make_link(argv[1], argv[2]);
1504 }
1505
mark_blocks_proc(ext2_filsys fs,blk64_t * blocknr,e2_blkcnt_t blockcnt EXT2FS_ATTR ((unused)),blk64_t ref_block EXT2FS_ATTR ((unused)),int ref_offset EXT2FS_ATTR ((unused)),void * private EXT2FS_ATTR ((unused)))1506 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1507 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1508 blk64_t ref_block EXT2FS_ATTR((unused)),
1509 int ref_offset EXT2FS_ATTR((unused)),
1510 void *private EXT2FS_ATTR((unused)))
1511 {
1512 blk64_t block;
1513
1514 block = *blocknr;
1515 ext2fs_block_alloc_stats2(fs, block, +1);
1516 return 0;
1517 }
1518
do_undel(int argc,char * argv[])1519 void do_undel(int argc, char *argv[])
1520 {
1521 ext2_ino_t ino;
1522 struct ext2_inode inode;
1523
1524 if (common_args_process(argc, argv, 2, 3, "undelete",
1525 "<inode_num> [dest_name]",
1526 CHECK_FS_RW | CHECK_FS_BITMAPS))
1527 return;
1528
1529 ino = string_to_inode(argv[1]);
1530 if (!ino)
1531 return;
1532
1533 if (debugfs_read_inode(ino, &inode, argv[1]))
1534 return;
1535
1536 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1537 com_err(argv[1], 0, "Inode is not marked as deleted");
1538 return;
1539 }
1540
1541 /*
1542 * XXX this function doesn't handle changing the links count on the
1543 * parent directory when undeleting a directory.
1544 */
1545 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1546 inode.i_dtime = 0;
1547
1548 if (debugfs_write_inode(ino, &inode, argv[0]))
1549 return;
1550
1551 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1552 mark_blocks_proc, NULL);
1553
1554 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1555
1556 if (argc > 2)
1557 make_link(argv[1], argv[2]);
1558 }
1559
unlink_file_by_name(char * filename)1560 static void unlink_file_by_name(char *filename)
1561 {
1562 int retval;
1563 ext2_ino_t dir;
1564 char *base_name;
1565
1566 base_name = strrchr(filename, '/');
1567 if (base_name) {
1568 *base_name++ = '\0';
1569 dir = string_to_inode(filename);
1570 if (!dir)
1571 return;
1572 } else {
1573 dir = cwd;
1574 base_name = filename;
1575 }
1576 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1577 if (retval)
1578 com_err("unlink_file_by_name", retval, 0);
1579 return;
1580 }
1581
do_unlink(int argc,char * argv[])1582 void do_unlink(int argc, char *argv[])
1583 {
1584 if (common_args_process(argc, argv, 2, 2, "link",
1585 "<pathname>", CHECK_FS_RW))
1586 return;
1587
1588 unlink_file_by_name(argv[1]);
1589 }
1590
do_copy_inode(int argc,char * argv[])1591 void do_copy_inode(int argc, char *argv[])
1592 {
1593 ext2_ino_t src_ino, dest_ino;
1594 struct ext2_inode inode;
1595 unsigned char buf[4096];
1596 int retval;
1597
1598 if (common_args_process(argc, argv, 3, 3, "copy_inode",
1599 "<source file> <dest_name>", CHECK_FS_RW))
1600 return;
1601
1602 src_ino = string_to_inode(argv[1]);
1603 if (!src_ino)
1604 return;
1605
1606 dest_ino = string_to_inode(argv[2]);
1607 if (!dest_ino)
1608 return;
1609
1610 if (debugfs_read_inode_full(src_ino, (struct ext2_inode *) buf,
1611 argv[0], sizeof(buf)))
1612 return;
1613
1614 if (debugfs_write_inode_full(dest_ino, (struct ext2_inode *) buf,
1615 argv[0], sizeof(buf)))
1616 return;
1617 }
1618
1619 #endif /* READ_ONLY */
1620
do_find_free_block(int argc,char * argv[])1621 void do_find_free_block(int argc, char *argv[])
1622 {
1623 blk64_t free_blk, goal, first_free = 0;
1624 int count;
1625 errcode_t retval;
1626 char *tmp;
1627
1628 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1629 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1630 return;
1631 }
1632 if (check_fs_open(argv[0]))
1633 return;
1634
1635 if (argc > 1) {
1636 count = strtol(argv[1],&tmp,0);
1637 if (*tmp) {
1638 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1639 return;
1640 }
1641 } else
1642 count = 1;
1643
1644 if (argc > 2) {
1645 goal = strtol(argv[2], &tmp, 0);
1646 if (*tmp) {
1647 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1648 return;
1649 }
1650 }
1651 else
1652 goal = current_fs->super->s_first_data_block;
1653
1654 printf("Free blocks found: ");
1655 free_blk = goal - 1;
1656 while (count-- > 0) {
1657 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1658 &free_blk);
1659 if (first_free) {
1660 if (first_free == free_blk)
1661 break;
1662 } else
1663 first_free = free_blk;
1664 if (retval) {
1665 com_err("ext2fs_new_block", retval, 0);
1666 return;
1667 } else
1668 printf("%llu ", free_blk);
1669 }
1670 printf("\n");
1671 }
1672
do_find_free_inode(int argc,char * argv[])1673 void do_find_free_inode(int argc, char *argv[])
1674 {
1675 ext2_ino_t free_inode, dir;
1676 int mode;
1677 int retval;
1678 char *tmp;
1679
1680 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1681 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1682 return;
1683 }
1684 if (check_fs_open(argv[0]))
1685 return;
1686
1687 if (argc > 1) {
1688 dir = strtol(argv[1], &tmp, 0);
1689 if (*tmp) {
1690 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1691 return;
1692 }
1693 }
1694 else
1695 dir = root;
1696 if (argc > 2) {
1697 mode = strtol(argv[2], &tmp, 0);
1698 if (*tmp) {
1699 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1700 return;
1701 }
1702 } else
1703 mode = 010755;
1704
1705 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1706 if (retval)
1707 com_err("ext2fs_new_inode", retval, 0);
1708 else
1709 printf("Free inode found: %u\n", free_inode);
1710 }
1711
1712 #ifndef READ_ONLY
do_write(int argc,char * argv[])1713 void do_write(int argc, char *argv[])
1714 {
1715 errcode_t retval;
1716
1717 if (common_args_process(argc, argv, 3, 3, "write",
1718 "<native file> <new file>", CHECK_FS_RW))
1719 return;
1720
1721 retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1722 if (retval)
1723 com_err(argv[0], retval, 0);
1724 }
1725
do_mknod(int argc,char * argv[])1726 void do_mknod(int argc, char *argv[])
1727 {
1728 unsigned long major, minor;
1729 errcode_t retval;
1730 int nr;
1731 struct stat st;
1732
1733 if (check_fs_open(argv[0]))
1734 return;
1735 if (argc < 3 || argv[2][1]) {
1736 usage:
1737 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1738 return;
1739 }
1740
1741 minor = major = 0;
1742 switch (argv[2][0]) {
1743 case 'p':
1744 st.st_mode = S_IFIFO;
1745 nr = 3;
1746 break;
1747 case 'c':
1748 st.st_mode = S_IFCHR;
1749 nr = 5;
1750 break;
1751 case 'b':
1752 st.st_mode = S_IFBLK;
1753 nr = 5;
1754 break;
1755 default:
1756 nr = 0;
1757 }
1758
1759 if (nr == 5) {
1760 major = strtoul(argv[3], argv+3, 0);
1761 minor = strtoul(argv[4], argv+4, 0);
1762 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1763 nr = 0;
1764 }
1765
1766 if (argc != nr)
1767 goto usage;
1768
1769 st.st_rdev = makedev(major, minor);
1770 retval = do_mknod_internal(current_fs, cwd, argv[1], &st);
1771 if (retval)
1772 com_err(argv[0], retval, 0);
1773 }
1774
do_mkdir(int argc,char * argv[])1775 void do_mkdir(int argc, char *argv[])
1776 {
1777 errcode_t retval;
1778
1779 if (common_args_process(argc, argv, 2, 2, "mkdir",
1780 "<filename>", CHECK_FS_RW))
1781 return;
1782
1783 retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1784 if (retval)
1785 com_err(argv[0], retval, 0);
1786
1787 }
1788
release_blocks_proc(ext2_filsys fs,blk64_t * blocknr,e2_blkcnt_t blockcnt EXT2FS_ATTR ((unused)),blk64_t ref_block EXT2FS_ATTR ((unused)),int ref_offset EXT2FS_ATTR ((unused)),void * private EXT2FS_ATTR ((unused)))1789 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1790 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1791 blk64_t ref_block EXT2FS_ATTR((unused)),
1792 int ref_offset EXT2FS_ATTR((unused)),
1793 void *private EXT2FS_ATTR((unused)))
1794 {
1795 blk64_t block;
1796
1797 block = *blocknr;
1798 ext2fs_block_alloc_stats2(fs, block, -1);
1799 return 0;
1800 }
1801
kill_file_by_inode(ext2_ino_t inode)1802 static void kill_file_by_inode(ext2_ino_t inode)
1803 {
1804 struct ext2_inode inode_buf;
1805
1806 if (debugfs_read_inode(inode, &inode_buf, 0))
1807 return;
1808 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1809 if (debugfs_write_inode(inode, &inode_buf, 0))
1810 return;
1811 if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1812 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1813 NULL, release_blocks_proc, NULL);
1814 }
1815 printf("\n");
1816 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1817 LINUX_S_ISDIR(inode_buf.i_mode));
1818 }
1819
1820
do_kill_file(int argc,char * argv[])1821 void do_kill_file(int argc, char *argv[])
1822 {
1823 ext2_ino_t inode_num;
1824
1825 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1826 return;
1827
1828 kill_file_by_inode(inode_num);
1829 }
1830
do_rm(int argc,char * argv[])1831 void do_rm(int argc, char *argv[])
1832 {
1833 int retval;
1834 ext2_ino_t inode_num;
1835 struct ext2_inode inode;
1836
1837 if (common_args_process(argc, argv, 2, 2, "rm",
1838 "<filename>", CHECK_FS_RW))
1839 return;
1840
1841 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1842 if (retval) {
1843 com_err(argv[0], retval, "while trying to resolve filename");
1844 return;
1845 }
1846
1847 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1848 return;
1849
1850 if (LINUX_S_ISDIR(inode.i_mode)) {
1851 com_err(argv[0], 0, "file is a directory");
1852 return;
1853 }
1854
1855 --inode.i_links_count;
1856 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1857 return;
1858
1859 unlink_file_by_name(argv[1]);
1860 if (inode.i_links_count == 0)
1861 kill_file_by_inode(inode_num);
1862 }
1863
1864 struct rd_struct {
1865 ext2_ino_t parent;
1866 int empty;
1867 };
1868
rmdir_proc(ext2_ino_t dir EXT2FS_ATTR ((unused)),int entry EXT2FS_ATTR ((unused)),struct ext2_dir_entry * dirent,int offset EXT2FS_ATTR ((unused)),int blocksize EXT2FS_ATTR ((unused)),char * buf EXT2FS_ATTR ((unused)),void * private)1869 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1870 int entry EXT2FS_ATTR((unused)),
1871 struct ext2_dir_entry *dirent,
1872 int offset EXT2FS_ATTR((unused)),
1873 int blocksize EXT2FS_ATTR((unused)),
1874 char *buf EXT2FS_ATTR((unused)),
1875 void *private)
1876 {
1877 struct rd_struct *rds = (struct rd_struct *) private;
1878
1879 if (dirent->inode == 0)
1880 return 0;
1881 if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1882 return 0;
1883 if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1884 (dirent->name[1] == '.')) {
1885 rds->parent = dirent->inode;
1886 return 0;
1887 }
1888 rds->empty = 0;
1889 return 0;
1890 }
1891
do_rmdir(int argc,char * argv[])1892 void do_rmdir(int argc, char *argv[])
1893 {
1894 int retval;
1895 ext2_ino_t inode_num;
1896 struct ext2_inode inode;
1897 struct rd_struct rds;
1898
1899 if (common_args_process(argc, argv, 2, 2, "rmdir",
1900 "<filename>", CHECK_FS_RW))
1901 return;
1902
1903 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1904 if (retval) {
1905 com_err(argv[0], retval, "while trying to resolve filename");
1906 return;
1907 }
1908
1909 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1910 return;
1911
1912 if (!LINUX_S_ISDIR(inode.i_mode)) {
1913 com_err(argv[0], 0, "file is not a directory");
1914 return;
1915 }
1916
1917 rds.parent = 0;
1918 rds.empty = 1;
1919
1920 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1921 0, rmdir_proc, &rds);
1922 if (retval) {
1923 com_err(argv[0], retval, "while iterating over directory");
1924 return;
1925 }
1926 if (rds.empty == 0) {
1927 com_err(argv[0], 0, "directory not empty");
1928 return;
1929 }
1930
1931 inode.i_links_count = 0;
1932 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1933 return;
1934
1935 unlink_file_by_name(argv[1]);
1936 kill_file_by_inode(inode_num);
1937
1938 if (rds.parent) {
1939 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1940 return;
1941 if (inode.i_links_count > 1)
1942 inode.i_links_count--;
1943 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1944 return;
1945 }
1946 }
1947 #endif /* READ_ONLY */
1948
do_show_debugfs_params(int argc EXT2FS_ATTR ((unused)),char * argv[]EXT2FS_ATTR ((unused)))1949 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1950 char *argv[] EXT2FS_ATTR((unused)))
1951 {
1952 if (current_fs)
1953 printf("Open mode: read-%s\n",
1954 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1955 printf("Filesystem in use: %s\n",
1956 current_fs ? current_fs->device_name : "--none--");
1957 }
1958
1959 #ifndef READ_ONLY
do_expand_dir(int argc,char * argv[])1960 void do_expand_dir(int argc, char *argv[])
1961 {
1962 ext2_ino_t inode;
1963 int retval;
1964
1965 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1966 return;
1967
1968 retval = ext2fs_expand_dir(current_fs, inode);
1969 if (retval)
1970 com_err("ext2fs_expand_dir", retval, 0);
1971 return;
1972 }
1973
do_features(int argc,char * argv[])1974 void do_features(int argc, char *argv[])
1975 {
1976 int i;
1977
1978 if (check_fs_open(argv[0]))
1979 return;
1980
1981 if ((argc != 1) && check_fs_read_write(argv[0]))
1982 return;
1983 for (i=1; i < argc; i++) {
1984 if (e2p_edit_feature(argv[i],
1985 ¤t_fs->super->s_feature_compat, 0))
1986 com_err(argv[0], 0, "Unknown feature: %s\n",
1987 argv[i]);
1988 else
1989 ext2fs_mark_super_dirty(current_fs);
1990 }
1991 print_features(current_fs->super, stdout);
1992 }
1993 #endif /* READ_ONLY */
1994
do_bmap(int argc,char * argv[])1995 void do_bmap(int argc, char *argv[])
1996 {
1997 ext2_ino_t ino;
1998 blk64_t blk, pblk = 0;
1999 int c, err, flags = 0, ret_flags = 0;
2000 errcode_t errcode;
2001
2002 if (check_fs_open(argv[0]))
2003 return;
2004
2005 reset_getopt();
2006 while ((c = getopt (argc, argv, "a")) != EOF) {
2007 switch (c) {
2008 case 'a':
2009 flags |= BMAP_ALLOC;
2010 break;
2011 default:
2012 goto print_usage;
2013 }
2014 }
2015
2016 if (argc <= optind+1) {
2017 print_usage:
2018 com_err(0, 0,
2019 "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2020 return;
2021 }
2022
2023 ino = string_to_inode(argv[optind++]);
2024 if (!ino)
2025 return;
2026 err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2027 if (err)
2028 return;
2029
2030 if (argc > optind+1)
2031 goto print_usage;
2032
2033 if (argc == optind+1) {
2034 err = strtoblk(argv[0], argv[optind++],
2035 "physical block", &pblk);
2036 if (err)
2037 return;
2038 if (flags & BMAP_ALLOC) {
2039 com_err(0, 0, "Can't set and allocate a block");
2040 return;
2041 }
2042 flags |= BMAP_SET;
2043 }
2044
2045 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2046 &ret_flags, &pblk);
2047 if (errcode) {
2048 com_err(argv[0], errcode,
2049 "while mapping logical block %llu\n", blk);
2050 return;
2051 }
2052 printf("%llu", pblk);
2053 if (ret_flags & BMAP_RET_UNINIT)
2054 fputs(" (uninit)", stdout);
2055 fputc('\n', stdout);
2056 }
2057
do_imap(int argc,char * argv[])2058 void do_imap(int argc, char *argv[])
2059 {
2060 ext2_ino_t ino;
2061 unsigned long group, block, block_nr, offset;
2062
2063 if (common_args_process(argc, argv, 2, 2, argv[0],
2064 "<file>", 0))
2065 return;
2066 ino = string_to_inode(argv[1]);
2067 if (!ino)
2068 return;
2069
2070 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2071 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2072 EXT2_INODE_SIZE(current_fs->super);
2073 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2074 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2075 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2076 group);
2077 return;
2078 }
2079 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2080 block;
2081 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2082
2083 printf("Inode %d is part of block group %lu\n"
2084 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2085 block_nr, offset);
2086
2087 }
2088
do_idump(int argc,char * argv[])2089 void do_idump(int argc, char *argv[])
2090 {
2091 ext2_ino_t ino;
2092 unsigned char *buf;
2093 errcode_t err;
2094 int isize;
2095
2096 if (common_args_process(argc, argv, 2, 2, argv[0],
2097 "<file>", 0))
2098 return;
2099 ino = string_to_inode(argv[1]);
2100 if (!ino)
2101 return;
2102
2103 isize = EXT2_INODE_SIZE(current_fs->super);
2104 err = ext2fs_get_mem(isize, &buf);
2105 if (err) {
2106 com_err(argv[0], err, "while allocating memory");
2107 return;
2108 }
2109
2110 err = ext2fs_read_inode_full(current_fs, ino,
2111 (struct ext2_inode *)buf, isize);
2112 if (err) {
2113 com_err(argv[0], err, "while reading inode %d", ino);
2114 goto err;
2115 }
2116
2117 do_byte_hexdump(stdout, buf, isize);
2118 err:
2119 ext2fs_free_mem(&buf);
2120 }
2121
2122 #ifndef READ_ONLY
do_set_current_time(int argc,char * argv[])2123 void do_set_current_time(int argc, char *argv[])
2124 {
2125 __s64 now;
2126
2127 if (common_args_process(argc, argv, 2, 2, argv[0],
2128 "<time>", 0))
2129 return;
2130
2131 now = string_to_time(argv[1]);
2132 if (now == -1) {
2133 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2134 argv[1]);
2135 return;
2136
2137 } else {
2138 printf("Setting current time to %s\n", time_to_string(now));
2139 current_fs->now = now;
2140 }
2141 }
2142 #endif /* READ_ONLY */
2143
find_supp_feature(__u32 * supp,int feature_type,char * name)2144 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2145 {
2146 int compat, bit, ret;
2147 unsigned int feature_mask;
2148
2149 if (name) {
2150 if (feature_type == E2P_FS_FEATURE)
2151 ret = e2p_string2feature(name, &compat, &feature_mask);
2152 else
2153 ret = e2p_jrnl_string2feature(name, &compat,
2154 &feature_mask);
2155 if (ret)
2156 return ret;
2157
2158 if (!(supp[compat] & feature_mask))
2159 return 1;
2160 } else {
2161 for (compat = 0; compat < 3; compat++) {
2162 for (bit = 0, feature_mask = 1; bit < 32;
2163 bit++, feature_mask <<= 1) {
2164 if (supp[compat] & feature_mask) {
2165 if (feature_type == E2P_FS_FEATURE)
2166 fprintf(stdout, " %s",
2167 e2p_feature2string(compat,
2168 feature_mask));
2169 else
2170 fprintf(stdout, " %s",
2171 e2p_jrnl_feature2string(compat,
2172 feature_mask));
2173 }
2174 }
2175 }
2176 fprintf(stdout, "\n");
2177 }
2178
2179 return 0;
2180 }
2181
do_supported_features(int argc,char * argv[])2182 void do_supported_features(int argc, char *argv[])
2183 {
2184 int ret;
2185 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2186 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2187 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2188 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2189 JFS_KNOWN_INCOMPAT_FEATURES,
2190 JFS_KNOWN_ROCOMPAT_FEATURES };
2191
2192 if (argc > 1) {
2193 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2194 if (ret) {
2195 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2196 argv[1]);
2197 }
2198 if (ret)
2199 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2200 else
2201 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2202 } else {
2203 fprintf(stdout, "Supported features:");
2204 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2205 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2206 }
2207 }
2208
2209 #ifndef READ_ONLY
do_punch(int argc,char * argv[])2210 void do_punch(int argc, char *argv[])
2211 {
2212 ext2_ino_t ino;
2213 blk64_t start, end;
2214 int err;
2215 errcode_t errcode;
2216
2217 if (common_args_process(argc, argv, 3, 4, argv[0],
2218 "<file> start_blk [end_blk]",
2219 CHECK_FS_RW | CHECK_FS_BITMAPS))
2220 return;
2221
2222 ino = string_to_inode(argv[1]);
2223 if (!ino)
2224 return;
2225 err = strtoblk(argv[0], argv[2], "logical block", &start);
2226 if (err)
2227 return;
2228 if (argc == 4) {
2229 err = strtoblk(argv[0], argv[3], "logical block", &end);
2230 if (err)
2231 return;
2232 } else
2233 end = ~0;
2234
2235 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2236
2237 if (errcode) {
2238 com_err(argv[0], errcode,
2239 "while truncating inode %u from %llu to %llu\n", ino,
2240 (unsigned long long) start, (unsigned long long) end);
2241 return;
2242 }
2243 }
2244
do_fallocate(int argc,char * argv[])2245 void do_fallocate(int argc, char *argv[])
2246 {
2247 ext2_ino_t ino;
2248 blk64_t start, end;
2249 int err;
2250 errcode_t errcode;
2251
2252 if (common_args_process(argc, argv, 3, 4, argv[0],
2253 "<file> start_blk [end_blk]",
2254 CHECK_FS_RW | CHECK_FS_BITMAPS))
2255 return;
2256
2257 ino = string_to_inode(argv[1]);
2258 if (!ino)
2259 return;
2260 err = strtoblk(argv[0], argv[2], "logical block", &start);
2261 if (err)
2262 return;
2263 if (argc == 4) {
2264 err = strtoblk(argv[0], argv[3], "logical block", &end);
2265 if (err)
2266 return;
2267 } else
2268 end = ~0;
2269
2270 errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2271 ino, NULL, ~0ULL, start, end - start + 1);
2272
2273 if (errcode) {
2274 com_err(argv[0], errcode,
2275 "while fallocating inode %u from %llu to %llu\n", ino,
2276 (unsigned long long) start, (unsigned long long) end);
2277 return;
2278 }
2279 }
2280 #endif /* READ_ONLY */
2281
do_symlink(int argc,char * argv[])2282 void do_symlink(int argc, char *argv[])
2283 {
2284 errcode_t retval;
2285
2286 if (common_args_process(argc, argv, 3, 3, "symlink",
2287 "<filename> <target>", CHECK_FS_RW))
2288 return;
2289
2290 retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2291 if (retval)
2292 com_err(argv[0], retval, 0);
2293
2294 }
2295
2296 #if CONFIG_MMP
do_dump_mmp(int argc EXT2FS_ATTR ((unused)),char * argv[])2297 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2298 {
2299 struct mmp_struct *mmp_s;
2300 unsigned long long mmp_block;
2301 time_t t;
2302 errcode_t retval = 0;
2303
2304 if (check_fs_open(argv[0]))
2305 return;
2306
2307 if (argc > 1) {
2308 char *end = NULL;
2309 mmp_block = strtoull(argv[1], &end, 0);
2310 if (end == argv[0] || mmp_block == 0) {
2311 fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2312 argv[0], argv[1]);
2313 return;
2314 }
2315 } else {
2316 mmp_block = current_fs->super->s_mmp_block;
2317 }
2318
2319 if (mmp_block == 0) {
2320 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2321 argv[0]);
2322 return;
2323 }
2324
2325 if (current_fs->mmp_buf == NULL) {
2326 retval = ext2fs_get_mem(current_fs->blocksize,
2327 ¤t_fs->mmp_buf);
2328 if (retval) {
2329 com_err(argv[0], retval, "allocating MMP buffer.\n");
2330 return;
2331 }
2332 }
2333
2334 mmp_s = current_fs->mmp_buf;
2335
2336 retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2337 if (retval) {
2338 com_err(argv[0], retval, "reading MMP block %llu.\n",
2339 mmp_block);
2340 return;
2341 }
2342
2343 t = mmp_s->mmp_time;
2344 fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2345 fprintf(stdout, "update_interval: %d\n",
2346 current_fs->super->s_mmp_update_interval);
2347 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2348 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2349 fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2350 fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2351 fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2352 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2353 fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2354 fprintf(stdout, "MMP is unsupported, please recompile with "
2355 "--enable-mmp\n");
2356 }
2357 #else
do_dump_mmp(int argc EXT2FS_ATTR ((unused)),char * argv[]EXT2FS_ATTR ((unused)))2358 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2359 char *argv[] EXT2FS_ATTR((unused)))
2360 {
2361 fprintf(stdout, "MMP is unsupported, please recompile with "
2362 "--enable-mmp\n");
2363 }
2364 #endif
2365
source_file(const char * cmd_file,int ss_idx)2366 static int source_file(const char *cmd_file, int ss_idx)
2367 {
2368 FILE *f;
2369 char buf[BUFSIZ];
2370 char *cp;
2371 int exit_status = 0;
2372 int retval;
2373
2374 if (strcmp(cmd_file, "-") == 0)
2375 f = stdin;
2376 else {
2377 f = fopen(cmd_file, "r");
2378 if (!f) {
2379 perror(cmd_file);
2380 exit(1);
2381 }
2382 }
2383 fflush(stdout);
2384 fflush(stderr);
2385 setbuf(stdout, NULL);
2386 setbuf(stderr, NULL);
2387 while (!feof(f)) {
2388 if (fgets(buf, sizeof(buf), f) == NULL)
2389 break;
2390 cp = strchr(buf, '\n');
2391 if (cp)
2392 *cp = 0;
2393 cp = strchr(buf, '\r');
2394 if (cp)
2395 *cp = 0;
2396 printf("debugfs: %s\n", buf);
2397 retval = ss_execute_line(ss_idx, buf);
2398 if (retval) {
2399 ss_perror(ss_idx, retval, buf);
2400 exit_status++;
2401 }
2402 }
2403 if (f != stdin)
2404 fclose(f);
2405 return exit_status;
2406 }
2407
main(int argc,char ** argv)2408 int main(int argc, char **argv)
2409 {
2410 int retval;
2411 const char *usage =
2412 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2413 "[-R request] [-V] ["
2414 #ifndef READ_ONLY
2415 "[-w] [-z undo_file] "
2416 #endif
2417 "[-c] device]";
2418 int c;
2419 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2420 char *request = 0;
2421 int exit_status = 0;
2422 char *cmd_file = 0;
2423 blk64_t superblock = 0;
2424 blk64_t blocksize = 0;
2425 int catastrophic = 0;
2426 char *data_filename = 0;
2427 #ifdef READ_ONLY
2428 const char *opt_string = "nicR:f:b:s:Vd:D";
2429 #else
2430 const char *opt_string = "niwcR:f:b:s:Vd:Dz:";
2431 char *undo_file = NULL;
2432 #endif
2433 #ifdef CONFIG_JBD_DEBUG
2434 char *jbd_debug;
2435 #endif
2436
2437 if (debug_prog_name == 0)
2438 #ifdef READ_ONLY
2439 debug_prog_name = "rdebugfs";
2440 #else
2441 debug_prog_name = "debugfs";
2442 #endif
2443 add_error_table(&et_ext2_error_table);
2444 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2445 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2446
2447 #ifdef CONFIG_JBD_DEBUG
2448 jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2449 if (jbd_debug) {
2450 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2451
2452 if (res != 1) {
2453 fprintf(stderr,
2454 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2455 jbd_debug);
2456 exit(1);
2457 }
2458 }
2459 #endif
2460 while ((c = getopt (argc, argv, opt_string)) != EOF) {
2461 switch (c) {
2462 case 'R':
2463 request = optarg;
2464 break;
2465 case 'f':
2466 cmd_file = optarg;
2467 break;
2468 case 'd':
2469 data_filename = optarg;
2470 break;
2471 case 'i':
2472 open_flags |= EXT2_FLAG_IMAGE_FILE;
2473 break;
2474 case 'n':
2475 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2476 break;
2477 #ifndef READ_ONLY
2478 case 'w':
2479 open_flags |= EXT2_FLAG_RW;
2480 break;
2481 #endif
2482 case 'D':
2483 open_flags |= EXT2_FLAG_DIRECT_IO;
2484 break;
2485 case 'b':
2486 blocksize = parse_ulong(optarg, argv[0],
2487 "block size", 0);
2488 break;
2489 case 's':
2490 retval = strtoblk(argv[0], optarg,
2491 "superblock block number",
2492 &superblock);
2493 if (retval)
2494 return 1;
2495 break;
2496 case 'c':
2497 catastrophic = 1;
2498 break;
2499 case 'V':
2500 /* Print version number and exit */
2501 fprintf(stderr, "\tUsing %s\n",
2502 error_message(EXT2_ET_BASE));
2503 exit(0);
2504 case 'z':
2505 undo_file = optarg;
2506 break;
2507 default:
2508 com_err(argv[0], 0, usage, debug_prog_name);
2509 return 1;
2510 }
2511 }
2512 if (optind < argc)
2513 open_filesystem(argv[optind], open_flags,
2514 superblock, blocksize, catastrophic,
2515 data_filename, undo_file);
2516
2517 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2518 &debug_cmds, &retval);
2519 if (retval) {
2520 ss_perror(sci_idx, retval, "creating invocation");
2521 exit(1);
2522 }
2523 ss_get_readline(sci_idx);
2524
2525 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2526 if (retval) {
2527 ss_perror(sci_idx, retval, "adding standard requests");
2528 exit (1);
2529 }
2530 if (extra_cmds)
2531 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2532 if (retval) {
2533 ss_perror(sci_idx, retval, "adding extra requests");
2534 exit (1);
2535 }
2536 if (request) {
2537 retval = 0;
2538 retval = ss_execute_line(sci_idx, request);
2539 if (retval) {
2540 ss_perror(sci_idx, retval, request);
2541 exit_status++;
2542 }
2543 } else if (cmd_file) {
2544 exit_status = source_file(cmd_file, sci_idx);
2545 } else {
2546 ss_listen(sci_idx);
2547 }
2548
2549 ss_delete_invocation(sci_idx);
2550
2551 if (current_fs)
2552 close_filesystem();
2553
2554 remove_error_table(&et_ext2_error_table);
2555 return exit_status;
2556 }
2557