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debugfs: build read-only variant of debugfs
[thirdparty/e2fsprogs.git] / debugfs / debugfs.c
1 /*
2 * debugfs.c --- a program which allows you to attach an ext2fs
3 * filesystem and play with it.
4 *
5 * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
6 * under the terms of the GNU Public License.
7 *
8 * Modifications by Robert Sanders <gt8134b@prism.gatech.edu>
9 */
10
11 #include "config.h"
12 #include <stdio.h>
13 #include <unistd.h>
14 #include <stdlib.h>
15 #include <ctype.h>
16 #include <string.h>
17 #include <time.h>
18 #ifdef HAVE_GETOPT_H
19 #include <getopt.h>
20 #else
21 extern int optind;
22 extern char *optarg;
23 #endif
24 #ifdef HAVE_ERRNO_H
25 #include <errno.h>
26 #endif
27 #include <fcntl.h>
28 #include <sys/types.h>
29 #include <sys/stat.h>
30
31 #include "et/com_err.h"
32 #include "ss/ss.h"
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
42 extern ss_request_table debug_cmds;
43 ss_request_table *extra_cmds;
44 const char *debug_prog_name;
45
46 ext2_filsys current_fs = NULL;
47 ext2_ino_t root, cwd;
48
49 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
50 blk64_t blocksize, int catastrophic,
51 char *data_filename)
52 {
53 int retval;
54 io_channel data_io = 0;
55
56 if (superblock != 0 && blocksize == 0) {
57 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
58 current_fs = NULL;
59 return;
60 }
61
62 if (data_filename) {
63 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
64 com_err(device, 0,
65 "The -d option is only valid when reading an e2image file");
66 current_fs = NULL;
67 return;
68 }
69 retval = unix_io_manager->open(data_filename, 0, &data_io);
70 if (retval) {
71 com_err(data_filename, 0, "while opening data source");
72 current_fs = NULL;
73 return;
74 }
75 }
76
77 if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
78 com_err(device, 0,
79 "opening read-only because of catastrophic mode");
80 open_flags &= ~EXT2_FLAG_RW;
81 }
82 if (catastrophic)
83 open_flags |= EXT2_FLAG_SKIP_MMP;
84
85 retval = ext2fs_open(device, open_flags, superblock, blocksize,
86 unix_io_manager, &current_fs);
87 if (retval) {
88 com_err(device, retval, "while opening filesystem");
89 current_fs = NULL;
90 return;
91 }
92
93 if (catastrophic)
94 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
95 else {
96 retval = ext2fs_read_inode_bitmap(current_fs);
97 if (retval) {
98 com_err(device, retval, "while reading inode bitmap");
99 goto errout;
100 }
101 retval = ext2fs_read_block_bitmap(current_fs);
102 if (retval) {
103 com_err(device, retval, "while reading block bitmap");
104 goto errout;
105 }
106 }
107
108 if (data_io) {
109 retval = ext2fs_set_data_io(current_fs, data_io);
110 if (retval) {
111 com_err(device, retval,
112 "while setting data source");
113 goto errout;
114 }
115 }
116
117 root = cwd = EXT2_ROOT_INO;
118 return;
119
120 errout:
121 retval = ext2fs_close(current_fs);
122 if (retval)
123 com_err(device, retval, "while trying to close filesystem");
124 current_fs = NULL;
125 }
126
127 void do_open_filesys(int argc, char **argv)
128 {
129 int c, err;
130 int catastrophic = 0;
131 blk64_t superblock = 0;
132 blk64_t blocksize = 0;
133 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
134 char *data_filename = 0;
135
136 reset_getopt();
137 while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
138 switch (c) {
139 case 'i':
140 open_flags |= EXT2_FLAG_IMAGE_FILE;
141 break;
142 case 'w':
143 #ifdef READ_ONLY
144 goto print_usage;
145 #else
146 open_flags |= EXT2_FLAG_RW;
147 #endif /* READ_ONLY */
148 break;
149 case 'f':
150 open_flags |= EXT2_FLAG_FORCE;
151 break;
152 case 'e':
153 open_flags |= EXT2_FLAG_EXCLUSIVE;
154 break;
155 case 'c':
156 catastrophic = 1;
157 break;
158 case 'd':
159 data_filename = optarg;
160 break;
161 case 'D':
162 open_flags |= EXT2_FLAG_DIRECT_IO;
163 break;
164 case 'b':
165 blocksize = parse_ulong(optarg, argv[0],
166 "block size", &err);
167 if (err)
168 return;
169 break;
170 case 's':
171 superblock = parse_ulong(optarg, argv[0],
172 "superblock number", &err);
173 if (err)
174 return;
175 break;
176 default:
177 goto print_usage;
178 }
179 }
180 if (optind != argc-1) {
181 goto print_usage;
182 }
183 if (check_fs_not_open(argv[0]))
184 return;
185 open_filesystem(argv[optind], open_flags,
186 superblock, blocksize, catastrophic,
187 data_filename);
188 return;
189
190 print_usage:
191 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] [-c] "
192 #ifndef READ_ONLY
193 "[-w] "
194 #endif
195 "<device>\n", argv[0]);
196 }
197
198 void do_lcd(int argc, char **argv)
199 {
200 if (argc != 2) {
201 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
202 return;
203 }
204
205 if (chdir(argv[1]) == -1) {
206 com_err(argv[0], errno,
207 "while trying to change native directory to %s",
208 argv[1]);
209 return;
210 }
211 }
212
213 static void close_filesystem(NOARGS)
214 {
215 int retval;
216
217 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
218 retval = ext2fs_write_inode_bitmap(current_fs);
219 if (retval)
220 com_err("ext2fs_write_inode_bitmap", retval, 0);
221 }
222 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
223 retval = ext2fs_write_block_bitmap(current_fs);
224 if (retval)
225 com_err("ext2fs_write_block_bitmap", retval, 0);
226 }
227 retval = ext2fs_close(current_fs);
228 if (retval)
229 com_err("ext2fs_close", retval, 0);
230 current_fs = NULL;
231 return;
232 }
233
234 void do_close_filesys(int argc, char **argv)
235 {
236 int c;
237
238 if (check_fs_open(argv[0]))
239 return;
240
241 reset_getopt();
242 while ((c = getopt (argc, argv, "a")) != EOF) {
243 switch (c) {
244 case 'a':
245 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
246 break;
247 default:
248 goto print_usage;
249 }
250 }
251
252 if (argc > optind) {
253 print_usage:
254 com_err(0, 0, "Usage: close_filesys [-a]");
255 return;
256 }
257
258 close_filesystem();
259 }
260
261 #ifndef READ_ONLY
262 void do_init_filesys(int argc, char **argv)
263 {
264 struct ext2_super_block param;
265 errcode_t retval;
266 int err;
267
268 if (common_args_process(argc, argv, 3, 3, "initialize",
269 "<device> <blocksize>", CHECK_FS_NOTOPEN))
270 return;
271
272 memset(&param, 0, sizeof(struct ext2_super_block));
273 ext2fs_blocks_count_set(&param, parse_ulong(argv[2], argv[0],
274 "blocks count", &err));
275 if (err)
276 return;
277 retval = ext2fs_initialize(argv[1], 0, &param,
278 unix_io_manager, &current_fs);
279 if (retval) {
280 com_err(argv[1], retval, "while initializing filesystem");
281 current_fs = NULL;
282 return;
283 }
284 root = cwd = EXT2_ROOT_INO;
285 return;
286 }
287 #endif /* READ_ONLY */
288
289 static void print_features(struct ext2_super_block * s, FILE *f)
290 {
291 int i, j, printed=0;
292 __u32 *mask = &s->s_feature_compat, m;
293
294 fputs("Filesystem features:", f);
295 for (i=0; i <3; i++,mask++) {
296 for (j=0,m=1; j < 32; j++, m<<=1) {
297 if (*mask & m) {
298 fprintf(f, " %s", e2p_feature2string(i, m));
299 printed++;
300 }
301 }
302 }
303 if (printed == 0)
304 fputs("(none)", f);
305 fputs("\n", f);
306 }
307
308 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
309 const char *str, int *first, FILE *f)
310 {
311 if (ext2fs_bg_flags_test(fs, group, mask)) {
312 if (*first) {
313 fputs(" [", f);
314 *first = 0;
315 } else
316 fputs(", ", f);
317 fputs(str, f);
318 }
319 }
320
321 void do_show_super_stats(int argc, char *argv[])
322 {
323 const char *units ="block";
324 dgrp_t i;
325 FILE *out;
326 int c, header_only = 0;
327 int numdirs = 0, first, gdt_csum;
328
329 reset_getopt();
330 while ((c = getopt (argc, argv, "h")) != EOF) {
331 switch (c) {
332 case 'h':
333 header_only++;
334 break;
335 default:
336 goto print_usage;
337 }
338 }
339 if (optind != argc) {
340 goto print_usage;
341 }
342 if (check_fs_open(argv[0]))
343 return;
344 out = open_pager();
345
346 if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
347 EXT4_FEATURE_RO_COMPAT_BIGALLOC))
348 units = "cluster";
349
350 list_super2(current_fs->super, out);
351 for (i=0; i < current_fs->group_desc_count; i++)
352 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
353 fprintf(out, "Directories: %d\n", numdirs);
354
355 if (header_only) {
356 close_pager(out);
357 return;
358 }
359
360 gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
361 EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
362 for (i = 0; i < current_fs->group_desc_count; i++) {
363 fprintf(out, " Group %2d: block bitmap at %llu, "
364 "inode bitmap at %llu, "
365 "inode table at %llu\n"
366 " %u free %s%s, "
367 "%u free %s, "
368 "%u used %s%s",
369 i, ext2fs_block_bitmap_loc(current_fs, i),
370 ext2fs_inode_bitmap_loc(current_fs, i),
371 ext2fs_inode_table_loc(current_fs, i),
372 ext2fs_bg_free_blocks_count(current_fs, i), units,
373 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
374 "s" : "",
375 ext2fs_bg_free_inodes_count(current_fs, i),
376 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
377 "inodes" : "inode",
378 ext2fs_bg_used_dirs_count(current_fs, i),
379 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
380 : "directory", gdt_csum ? ", " : "\n");
381 if (gdt_csum)
382 fprintf(out, "%u unused %s\n",
383 ext2fs_bg_itable_unused(current_fs, i),
384 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
385 "inodes" : "inode");
386 first = 1;
387 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
388 &first, out);
389 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
390 &first, out);
391 if (gdt_csum) {
392 fprintf(out, "%sChecksum 0x%04x",
393 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
394 first = 0;
395 }
396 if (!first)
397 fputs("]\n", out);
398 }
399 close_pager(out);
400 return;
401 print_usage:
402 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
403 }
404
405 #ifndef READ_ONLY
406 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
407 char **argv EXT2FS_ATTR((unused)))
408 {
409 if (check_fs_open(argv[0]))
410 return;
411 if (check_fs_read_write(argv[0]))
412 return;
413
414 if (argv[1] && !strcmp(argv[1], "-clean"))
415 current_fs->super->s_state |= EXT2_VALID_FS;
416 else
417 current_fs->super->s_state &= ~EXT2_VALID_FS;
418 ext2fs_mark_super_dirty(current_fs);
419 }
420 #endif /* READ_ONLY */
421
422 struct list_blocks_struct {
423 FILE *f;
424 e2_blkcnt_t total;
425 blk64_t first_block, last_block;
426 e2_blkcnt_t first_bcnt, last_bcnt;
427 e2_blkcnt_t first;
428 };
429
430 static void finish_range(struct list_blocks_struct *lb)
431 {
432 if (lb->first_block == 0)
433 return;
434 if (lb->first)
435 lb->first = 0;
436 else
437 fprintf(lb->f, ", ");
438 if (lb->first_block == lb->last_block)
439 fprintf(lb->f, "(%lld):%llu",
440 (long long)lb->first_bcnt, lb->first_block);
441 else
442 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
443 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
444 lb->first_block, lb->last_block);
445 lb->first_block = 0;
446 }
447
448 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
449 blk64_t *blocknr, e2_blkcnt_t blockcnt,
450 blk64_t ref_block EXT2FS_ATTR((unused)),
451 int ref_offset EXT2FS_ATTR((unused)),
452 void *private)
453 {
454 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
455
456 lb->total++;
457 if (blockcnt >= 0) {
458 /*
459 * See if we can add on to the existing range (if it exists)
460 */
461 if (lb->first_block &&
462 (lb->last_block+1 == *blocknr) &&
463 (lb->last_bcnt+1 == blockcnt)) {
464 lb->last_block = *blocknr;
465 lb->last_bcnt = blockcnt;
466 return 0;
467 }
468 /*
469 * Start a new range.
470 */
471 finish_range(lb);
472 lb->first_block = lb->last_block = *blocknr;
473 lb->first_bcnt = lb->last_bcnt = blockcnt;
474 return 0;
475 }
476 /*
477 * Not a normal block. Always force a new range.
478 */
479 finish_range(lb);
480 if (lb->first)
481 lb->first = 0;
482 else
483 fprintf(lb->f, ", ");
484 if (blockcnt == -1)
485 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
486 else if (blockcnt == -2)
487 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
488 else if (blockcnt == -3)
489 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
490 return 0;
491 }
492
493 static void dump_xattr_string(FILE *out, const char *str, int len)
494 {
495 int printable = 0;
496 int i;
497
498 /* check: is string "printable enough?" */
499 for (i = 0; i < len; i++)
500 if (isprint(str[i]))
501 printable++;
502
503 if (printable <= len*7/8)
504 printable = 0;
505
506 for (i = 0; i < len; i++)
507 if (printable)
508 fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
509 (unsigned char)str[i]);
510 else
511 fprintf(out, "%02x ", (unsigned char)str[i]);
512 }
513
514 static void internal_dump_inode_extra(FILE *out,
515 const char *prefix EXT2FS_ATTR((unused)),
516 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
517 struct ext2_inode_large *inode)
518 {
519 struct ext2_ext_attr_entry *entry;
520 __u32 *magic;
521 char *start, *end;
522 unsigned int storage_size;
523
524 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
525 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
526 EXT2_GOOD_OLD_INODE_SIZE) {
527 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
528 inode->i_extra_isize);
529 return;
530 }
531 storage_size = EXT2_INODE_SIZE(current_fs->super) -
532 EXT2_GOOD_OLD_INODE_SIZE -
533 inode->i_extra_isize;
534 magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
535 inode->i_extra_isize);
536 if (*magic == EXT2_EXT_ATTR_MAGIC) {
537 fprintf(out, "Extended attributes stored in inode body: \n");
538 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
539 start = (char *) magic + sizeof(__u32);
540 entry = (struct ext2_ext_attr_entry *) start;
541 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
542 struct ext2_ext_attr_entry *next =
543 EXT2_EXT_ATTR_NEXT(entry);
544 if (entry->e_value_size > storage_size ||
545 (char *) next >= end) {
546 fprintf(out, "invalid EA entry in inode\n");
547 return;
548 }
549 fprintf(out, " ");
550 dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
551 entry->e_name_len);
552 fprintf(out, " = \"");
553 dump_xattr_string(out, start + entry->e_value_offs,
554 entry->e_value_size);
555 fprintf(out, "\" (%u)\n", entry->e_value_size);
556 entry = next;
557 }
558 }
559 }
560
561 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
562 {
563 struct list_blocks_struct lb;
564
565 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
566 lb.total = 0;
567 lb.first_block = 0;
568 lb.f = f;
569 lb.first = 1;
570 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
571 list_blocks_proc, (void *)&lb);
572 finish_range(&lb);
573 if (lb.total)
574 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
575 fprintf(f,"\n");
576 }
577
578 static int int_log10(unsigned long long arg)
579 {
580 int l = 0;
581
582 arg = arg / 10;
583 while (arg) {
584 l++;
585 arg = arg / 10;
586 }
587 return l;
588 }
589
590 #define DUMP_LEAF_EXTENTS 0x01
591 #define DUMP_NODE_EXTENTS 0x02
592 #define DUMP_EXTENT_TABLE 0x04
593
594 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
595 int flags, int logical_width, int physical_width)
596 {
597 ext2_extent_handle_t handle;
598 struct ext2fs_extent extent;
599 struct ext2_extent_info info;
600 int op = EXT2_EXTENT_ROOT;
601 unsigned int printed = 0;
602 errcode_t errcode;
603
604 errcode = ext2fs_extent_open(current_fs, ino, &handle);
605 if (errcode)
606 return;
607
608 if (flags & DUMP_EXTENT_TABLE)
609 fprintf(f, "Level Entries %*s %*s Length Flags\n",
610 (logical_width*2)+3, "Logical",
611 (physical_width*2)+3, "Physical");
612 else
613 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
614
615 while (1) {
616 errcode = ext2fs_extent_get(handle, op, &extent);
617
618 if (errcode)
619 break;
620
621 op = EXT2_EXTENT_NEXT;
622
623 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
624 continue;
625
626 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
627 if ((flags & DUMP_LEAF_EXTENTS) == 0)
628 continue;
629 } else {
630 if ((flags & DUMP_NODE_EXTENTS) == 0)
631 continue;
632 }
633
634 errcode = ext2fs_extent_get_info(handle, &info);
635 if (errcode)
636 continue;
637
638 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
639 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
640 continue;
641
642 if (flags & DUMP_EXTENT_TABLE) {
643 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
644 "%*llu%*s %6u\n",
645 info.curr_level, info.max_depth,
646 info.curr_entry, info.num_entries,
647 logical_width,
648 extent.e_lblk,
649 logical_width,
650 extent.e_lblk + (extent.e_len - 1),
651 physical_width,
652 extent.e_pblk,
653 physical_width+3, "", extent.e_len);
654 continue;
655 }
656
657 fprintf(f, "%s(ETB%d):%lld",
658 printed ? ", " : "", info.curr_level,
659 extent.e_pblk);
660 printed = 1;
661 continue;
662 }
663
664 if (flags & DUMP_EXTENT_TABLE) {
665 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
666 "%*llu - %*llu %6u %s\n",
667 info.curr_level, info.max_depth,
668 info.curr_entry, info.num_entries,
669 logical_width,
670 extent.e_lblk,
671 logical_width,
672 extent.e_lblk + (extent.e_len - 1),
673 physical_width,
674 extent.e_pblk,
675 physical_width,
676 extent.e_pblk + (extent.e_len - 1),
677 extent.e_len,
678 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
679 "Uninit" : "");
680 continue;
681 }
682
683 if (extent.e_len == 0)
684 continue;
685 else if (extent.e_len == 1)
686 fprintf(f,
687 "%s(%lld%s):%lld",
688 printed ? ", " : "",
689 extent.e_lblk,
690 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
691 "[u]" : "",
692 extent.e_pblk);
693 else
694 fprintf(f,
695 "%s(%lld-%lld%s):%lld-%lld",
696 printed ? ", " : "",
697 extent.e_lblk,
698 extent.e_lblk + (extent.e_len - 1),
699 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
700 "[u]" : "",
701 extent.e_pblk,
702 extent.e_pblk + (extent.e_len - 1));
703 printed = 1;
704 }
705 if (printed)
706 fprintf(f, "\n");
707 }
708
709 void internal_dump_inode(FILE *out, const char *prefix,
710 ext2_ino_t inode_num, struct ext2_inode *inode,
711 int do_dump_blocks)
712 {
713 const char *i_type;
714 char frag, fsize;
715 int os = current_fs->super->s_creator_os;
716 struct ext2_inode_large *large_inode;
717 int is_large_inode = 0;
718
719 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
720 is_large_inode = 1;
721 large_inode = (struct ext2_inode_large *) inode;
722
723 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
724 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
725 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
726 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
727 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
728 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
729 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
730 else i_type = "bad type";
731 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
732 fprintf(out, "%sMode: %04o Flags: 0x%x\n",
733 prefix, inode->i_mode & 0777, inode->i_flags);
734 if (is_large_inode && large_inode->i_extra_isize >= 24) {
735 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
736 prefix, inode->i_generation, large_inode->i_version_hi,
737 inode->osd1.linux1.l_i_version);
738 } else {
739 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
740 inode->i_generation, inode->osd1.linux1.l_i_version);
741 }
742 fprintf(out, "%sUser: %5d Group: %5d Size: ",
743 prefix, inode_uid(*inode), inode_gid(*inode));
744 if (LINUX_S_ISREG(inode->i_mode))
745 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
746 else
747 fprintf(out, "%d\n", inode->i_size);
748 if (os == EXT2_OS_HURD)
749 fprintf(out,
750 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
751 prefix,
752 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
753 inode->osd1.hurd1.h_i_translator);
754 else
755 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n",
756 prefix,
757 inode->i_file_acl | ((long long)
758 (inode->osd2.linux2.l_i_file_acl_high) << 32),
759 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
760 if (os == EXT2_OS_LINUX)
761 fprintf(out, "%sLinks: %d Blockcount: %llu\n",
762 prefix, inode->i_links_count,
763 (((unsigned long long)
764 inode->osd2.linux2.l_i_blocks_hi << 32)) +
765 inode->i_blocks);
766 else
767 fprintf(out, "%sLinks: %d Blockcount: %u\n",
768 prefix, inode->i_links_count, inode->i_blocks);
769 switch (os) {
770 case EXT2_OS_HURD:
771 frag = inode->osd2.hurd2.h_i_frag;
772 fsize = inode->osd2.hurd2.h_i_fsize;
773 break;
774 default:
775 frag = fsize = 0;
776 }
777 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
778 prefix, inode->i_faddr, frag, fsize);
779 if (is_large_inode && large_inode->i_extra_isize >= 24) {
780 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
781 inode->i_ctime, large_inode->i_ctime_extra,
782 time_to_string(inode->i_ctime));
783 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
784 inode->i_atime, large_inode->i_atime_extra,
785 time_to_string(inode->i_atime));
786 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
787 inode->i_mtime, large_inode->i_mtime_extra,
788 time_to_string(inode->i_mtime));
789 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
790 large_inode->i_crtime, large_inode->i_crtime_extra,
791 time_to_string(large_inode->i_crtime));
792 } else {
793 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
794 time_to_string(inode->i_ctime));
795 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
796 time_to_string(inode->i_atime));
797 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
798 time_to_string(inode->i_mtime));
799 }
800 if (inode->i_dtime)
801 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
802 time_to_string(inode->i_dtime));
803 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
804 internal_dump_inode_extra(out, prefix, inode_num,
805 (struct ext2_inode_large *) inode);
806 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
807 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
808 (int) inode->i_size, (char *)inode->i_block);
809 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
810 int major, minor;
811 const char *devnote;
812
813 if (inode->i_block[0]) {
814 major = (inode->i_block[0] >> 8) & 255;
815 minor = inode->i_block[0] & 255;
816 devnote = "";
817 } else {
818 major = (inode->i_block[1] & 0xfff00) >> 8;
819 minor = ((inode->i_block[1] & 0xff) |
820 ((inode->i_block[1] >> 12) & 0xfff00));
821 devnote = "(New-style) ";
822 }
823 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
824 devnote, major, minor, major, minor);
825 } else if (do_dump_blocks) {
826 if (inode->i_flags & EXT4_EXTENTS_FL)
827 dump_extents(out, prefix, inode_num,
828 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
829 else
830 dump_blocks(out, prefix, inode_num);
831 }
832 }
833
834 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
835 {
836 FILE *out;
837
838 out = open_pager();
839 internal_dump_inode(out, "", inode_num, inode, 1);
840 close_pager(out);
841 }
842
843 void do_stat(int argc, char *argv[])
844 {
845 ext2_ino_t inode;
846 struct ext2_inode * inode_buf;
847
848 if (check_fs_open(argv[0]))
849 return;
850
851 inode_buf = (struct ext2_inode *)
852 malloc(EXT2_INODE_SIZE(current_fs->super));
853 if (!inode_buf) {
854 fprintf(stderr, "do_stat: can't allocate buffer\n");
855 return;
856 }
857
858 if (common_inode_args_process(argc, argv, &inode, 0)) {
859 free(inode_buf);
860 return;
861 }
862
863 if (debugfs_read_inode_full(inode, inode_buf, argv[0],
864 EXT2_INODE_SIZE(current_fs->super))) {
865 free(inode_buf);
866 return;
867 }
868
869 dump_inode(inode, inode_buf);
870 free(inode_buf);
871 return;
872 }
873
874 void do_dump_extents(int argc, char **argv)
875 {
876 struct ext2_inode inode;
877 ext2_ino_t ino;
878 FILE *out;
879 int c, flags = 0;
880 int logical_width;
881 int physical_width;
882
883 reset_getopt();
884 while ((c = getopt(argc, argv, "nl")) != EOF) {
885 switch (c) {
886 case 'n':
887 flags |= DUMP_NODE_EXTENTS;
888 break;
889 case 'l':
890 flags |= DUMP_LEAF_EXTENTS;
891 break;
892 }
893 }
894
895 if (argc != optind + 1) {
896 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
897 return;
898 }
899
900 if (flags == 0)
901 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
902 flags |= DUMP_EXTENT_TABLE;
903
904 if (check_fs_open(argv[0]))
905 return;
906
907 ino = string_to_inode(argv[optind]);
908 if (ino == 0)
909 return;
910
911 if (debugfs_read_inode(ino, &inode, argv[0]))
912 return;
913
914 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
915 fprintf(stderr, "%s: does not uses extent block maps\n",
916 argv[optind]);
917 return;
918 }
919
920 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
921 current_fs->blocksize) + 1;
922 if (logical_width < 5)
923 logical_width = 5;
924 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
925 if (physical_width < 5)
926 physical_width = 5;
927
928 out = open_pager();
929 dump_extents(out, "", ino, flags, logical_width, physical_width);
930 close_pager(out);
931 return;
932 }
933
934 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
935 blk64_t *blocknr,
936 e2_blkcnt_t blockcnt,
937 blk64_t ref_block EXT2FS_ATTR((unused)),
938 int ref_offset EXT2FS_ATTR((unused)),
939 void *private EXT2FS_ATTR((unused)))
940 {
941 printf("%llu ", *blocknr);
942 return 0;
943 }
944
945 void do_blocks(int argc, char *argv[])
946 {
947 ext2_ino_t inode;
948
949 if (check_fs_open(argv[0]))
950 return;
951
952 if (common_inode_args_process(argc, argv, &inode, 0)) {
953 return;
954 }
955
956 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
957 print_blocks_proc, NULL);
958 fputc('\n', stdout);
959 return;
960 }
961
962 void do_chroot(int argc, char *argv[])
963 {
964 ext2_ino_t inode;
965 int retval;
966
967 if (common_inode_args_process(argc, argv, &inode, 0))
968 return;
969
970 retval = ext2fs_check_directory(current_fs, inode);
971 if (retval) {
972 com_err(argv[1], retval, 0);
973 return;
974 }
975 root = inode;
976 }
977
978 #ifndef READ_ONLY
979 void do_clri(int argc, char *argv[])
980 {
981 ext2_ino_t inode;
982 struct ext2_inode inode_buf;
983
984 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
985 return;
986
987 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
988 return;
989 memset(&inode_buf, 0, sizeof(inode_buf));
990 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
991 return;
992 }
993
994 void do_freei(int argc, char *argv[])
995 {
996 ext2_ino_t inode;
997
998 if (common_inode_args_process(argc, argv, &inode,
999 CHECK_FS_RW | CHECK_FS_BITMAPS))
1000 return;
1001
1002 if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1003 com_err(argv[0], 0, "Warning: inode already clear");
1004 ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
1005 ext2fs_mark_ib_dirty(current_fs);
1006 }
1007
1008 void do_seti(int argc, char *argv[])
1009 {
1010 ext2_ino_t inode;
1011
1012 if (common_inode_args_process(argc, argv, &inode,
1013 CHECK_FS_RW | CHECK_FS_BITMAPS))
1014 return;
1015
1016 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1017 com_err(argv[0], 0, "Warning: inode already set");
1018 ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
1019 ext2fs_mark_ib_dirty(current_fs);
1020 }
1021 #endif /* READ_ONLY */
1022
1023 void do_testi(int argc, char *argv[])
1024 {
1025 ext2_ino_t inode;
1026
1027 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1028 return;
1029
1030 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1031 printf("Inode %u is marked in use\n", inode);
1032 else
1033 printf("Inode %u is not in use\n", inode);
1034 }
1035
1036 #ifndef READ_ONLY
1037 void do_freeb(int argc, char *argv[])
1038 {
1039 blk64_t block;
1040 blk64_t count = 1;
1041
1042 if (common_block_args_process(argc, argv, &block, &count))
1043 return;
1044 if (check_fs_read_write(argv[0]))
1045 return;
1046 while (count-- > 0) {
1047 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1048 com_err(argv[0], 0, "Warning: block %llu already clear",
1049 block);
1050 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1051 block++;
1052 }
1053 ext2fs_mark_bb_dirty(current_fs);
1054 }
1055
1056 void do_setb(int argc, char *argv[])
1057 {
1058 blk64_t block;
1059 blk64_t count = 1;
1060
1061 if (common_block_args_process(argc, argv, &block, &count))
1062 return;
1063 if (check_fs_read_write(argv[0]))
1064 return;
1065 while (count-- > 0) {
1066 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1067 com_err(argv[0], 0, "Warning: block %llu already set",
1068 block);
1069 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1070 block++;
1071 }
1072 ext2fs_mark_bb_dirty(current_fs);
1073 }
1074 #endif /* READ_ONLY */
1075
1076 void do_testb(int argc, char *argv[])
1077 {
1078 blk64_t block;
1079 blk64_t count = 1;
1080
1081 if (common_block_args_process(argc, argv, &block, &count))
1082 return;
1083 while (count-- > 0) {
1084 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1085 printf("Block %llu marked in use\n", block);
1086 else
1087 printf("Block %llu not in use\n", block);
1088 block++;
1089 }
1090 }
1091
1092 #ifndef READ_ONLY
1093 static void modify_u8(char *com, const char *prompt,
1094 const char *format, __u8 *val)
1095 {
1096 char buf[200];
1097 unsigned long v;
1098 char *tmp;
1099
1100 sprintf(buf, format, *val);
1101 printf("%30s [%s] ", prompt, buf);
1102 if (!fgets(buf, sizeof(buf), stdin))
1103 return;
1104 if (buf[strlen (buf) - 1] == '\n')
1105 buf[strlen (buf) - 1] = '\0';
1106 if (!buf[0])
1107 return;
1108 v = strtoul(buf, &tmp, 0);
1109 if (*tmp)
1110 com_err(com, 0, "Bad value - %s", buf);
1111 else
1112 *val = v;
1113 }
1114
1115 static void modify_u16(char *com, const char *prompt,
1116 const char *format, __u16 *val)
1117 {
1118 char buf[200];
1119 unsigned long v;
1120 char *tmp;
1121
1122 sprintf(buf, format, *val);
1123 printf("%30s [%s] ", prompt, buf);
1124 if (!fgets(buf, sizeof(buf), stdin))
1125 return;
1126 if (buf[strlen (buf) - 1] == '\n')
1127 buf[strlen (buf) - 1] = '\0';
1128 if (!buf[0])
1129 return;
1130 v = strtoul(buf, &tmp, 0);
1131 if (*tmp)
1132 com_err(com, 0, "Bad value - %s", buf);
1133 else
1134 *val = v;
1135 }
1136
1137 static void modify_u32(char *com, const char *prompt,
1138 const char *format, __u32 *val)
1139 {
1140 char buf[200];
1141 unsigned long v;
1142 char *tmp;
1143
1144 sprintf(buf, format, *val);
1145 printf("%30s [%s] ", prompt, buf);
1146 if (!fgets(buf, sizeof(buf), stdin))
1147 return;
1148 if (buf[strlen (buf) - 1] == '\n')
1149 buf[strlen (buf) - 1] = '\0';
1150 if (!buf[0])
1151 return;
1152 v = strtoul(buf, &tmp, 0);
1153 if (*tmp)
1154 com_err(com, 0, "Bad value - %s", buf);
1155 else
1156 *val = v;
1157 }
1158
1159
1160 void do_modify_inode(int argc, char *argv[])
1161 {
1162 struct ext2_inode inode;
1163 ext2_ino_t inode_num;
1164 int i;
1165 unsigned char *frag, *fsize;
1166 char buf[80];
1167 int os;
1168 const char *hex_format = "0x%x";
1169 const char *octal_format = "0%o";
1170 const char *decimal_format = "%d";
1171 const char *unsignedlong_format = "%lu";
1172
1173 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1174 return;
1175
1176 os = current_fs->super->s_creator_os;
1177
1178 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1179 return;
1180
1181 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1182 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1183 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1184 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1185 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1186 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1187 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1188 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1189 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1190 if (os == EXT2_OS_LINUX)
1191 modify_u16(argv[0], "Block count high", unsignedlong_format,
1192 &inode.osd2.linux2.l_i_blocks_hi);
1193 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1194 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1195 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1196 #if 0
1197 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1198 #endif
1199 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1200 if (LINUX_S_ISDIR(inode.i_mode))
1201 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1202 else
1203 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1204
1205 if (os == EXT2_OS_HURD)
1206 modify_u32(argv[0], "Translator Block",
1207 decimal_format, &inode.osd1.hurd1.h_i_translator);
1208
1209 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1210 switch (os) {
1211 case EXT2_OS_HURD:
1212 frag = &inode.osd2.hurd2.h_i_frag;
1213 fsize = &inode.osd2.hurd2.h_i_fsize;
1214 break;
1215 default:
1216 frag = fsize = 0;
1217 }
1218 if (frag)
1219 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1220 if (fsize)
1221 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1222
1223 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1224 sprintf(buf, "Direct Block #%d", i);
1225 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1226 }
1227 modify_u32(argv[0], "Indirect Block", decimal_format,
1228 &inode.i_block[EXT2_IND_BLOCK]);
1229 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1230 &inode.i_block[EXT2_DIND_BLOCK]);
1231 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1232 &inode.i_block[EXT2_TIND_BLOCK]);
1233 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1234 return;
1235 }
1236 #endif /* READ_ONLY */
1237
1238 void do_change_working_dir(int argc, char *argv[])
1239 {
1240 ext2_ino_t inode;
1241 int retval;
1242
1243 if (common_inode_args_process(argc, argv, &inode, 0))
1244 return;
1245
1246 retval = ext2fs_check_directory(current_fs, inode);
1247 if (retval) {
1248 com_err(argv[1], retval, 0);
1249 return;
1250 }
1251 cwd = inode;
1252 return;
1253 }
1254
1255 void do_print_working_directory(int argc, char *argv[])
1256 {
1257 int retval;
1258 char *pathname = NULL;
1259
1260 if (common_args_process(argc, argv, 1, 1,
1261 "print_working_directory", "", 0))
1262 return;
1263
1264 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1265 if (retval) {
1266 com_err(argv[0], retval,
1267 "while trying to get pathname of cwd");
1268 }
1269 printf("[pwd] INODE: %6u PATH: %s\n",
1270 cwd, pathname ? pathname : "NULL");
1271 if (pathname) {
1272 free(pathname);
1273 pathname = NULL;
1274 }
1275 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1276 if (retval) {
1277 com_err(argv[0], retval,
1278 "while trying to get pathname of root");
1279 }
1280 printf("[root] INODE: %6u PATH: %s\n",
1281 root, pathname ? pathname : "NULL");
1282 if (pathname) {
1283 free(pathname);
1284 pathname = NULL;
1285 }
1286 return;
1287 }
1288
1289 /*
1290 * Given a mode, return the ext2 file type
1291 */
1292 static int ext2_file_type(unsigned int mode)
1293 {
1294 if (LINUX_S_ISREG(mode))
1295 return EXT2_FT_REG_FILE;
1296
1297 if (LINUX_S_ISDIR(mode))
1298 return EXT2_FT_DIR;
1299
1300 if (LINUX_S_ISCHR(mode))
1301 return EXT2_FT_CHRDEV;
1302
1303 if (LINUX_S_ISBLK(mode))
1304 return EXT2_FT_BLKDEV;
1305
1306 if (LINUX_S_ISLNK(mode))
1307 return EXT2_FT_SYMLINK;
1308
1309 if (LINUX_S_ISFIFO(mode))
1310 return EXT2_FT_FIFO;
1311
1312 if (LINUX_S_ISSOCK(mode))
1313 return EXT2_FT_SOCK;
1314
1315 return 0;
1316 }
1317
1318 #ifndef READ_ONLY
1319 static void make_link(char *sourcename, char *destname)
1320 {
1321 ext2_ino_t ino;
1322 struct ext2_inode inode;
1323 int retval;
1324 ext2_ino_t dir;
1325 char *dest, *cp, *base_name;
1326
1327 /*
1328 * Get the source inode
1329 */
1330 ino = string_to_inode(sourcename);
1331 if (!ino)
1332 return;
1333 base_name = strrchr(sourcename, '/');
1334 if (base_name)
1335 base_name++;
1336 else
1337 base_name = sourcename;
1338 /*
1339 * Figure out the destination. First see if it exists and is
1340 * a directory.
1341 */
1342 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1343 dest = base_name;
1344 else {
1345 /*
1346 * OK, it doesn't exist. See if it is
1347 * '<dir>/basename' or 'basename'
1348 */
1349 cp = strrchr(destname, '/');
1350 if (cp) {
1351 *cp = 0;
1352 dir = string_to_inode(destname);
1353 if (!dir)
1354 return;
1355 dest = cp+1;
1356 } else {
1357 dir = cwd;
1358 dest = destname;
1359 }
1360 }
1361
1362 if (debugfs_read_inode(ino, &inode, sourcename))
1363 return;
1364
1365 retval = ext2fs_link(current_fs, dir, dest, ino,
1366 ext2_file_type(inode.i_mode));
1367 if (retval)
1368 com_err("make_link", retval, 0);
1369 return;
1370 }
1371
1372
1373 void do_link(int argc, char *argv[])
1374 {
1375 if (common_args_process(argc, argv, 3, 3, "link",
1376 "<source file> <dest_name>", CHECK_FS_RW))
1377 return;
1378
1379 make_link(argv[1], argv[2]);
1380 }
1381
1382 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1383 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1384 blk64_t ref_block EXT2FS_ATTR((unused)),
1385 int ref_offset EXT2FS_ATTR((unused)),
1386 void *private EXT2FS_ATTR((unused)))
1387 {
1388 blk64_t block;
1389
1390 block = *blocknr;
1391 ext2fs_block_alloc_stats2(fs, block, +1);
1392 return 0;
1393 }
1394
1395 void do_undel(int argc, char *argv[])
1396 {
1397 ext2_ino_t ino;
1398 struct ext2_inode inode;
1399
1400 if (common_args_process(argc, argv, 2, 3, "undelete",
1401 "<inode_num> [dest_name]",
1402 CHECK_FS_RW | CHECK_FS_BITMAPS))
1403 return;
1404
1405 ino = string_to_inode(argv[1]);
1406 if (!ino)
1407 return;
1408
1409 if (debugfs_read_inode(ino, &inode, argv[1]))
1410 return;
1411
1412 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1413 com_err(argv[1], 0, "Inode is not marked as deleted");
1414 return;
1415 }
1416
1417 /*
1418 * XXX this function doesn't handle changing the links count on the
1419 * parent directory when undeleting a directory.
1420 */
1421 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1422 inode.i_dtime = 0;
1423
1424 if (debugfs_write_inode(ino, &inode, argv[0]))
1425 return;
1426
1427 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1428 mark_blocks_proc, NULL);
1429
1430 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1431
1432 if (argc > 2)
1433 make_link(argv[1], argv[2]);
1434 }
1435
1436 static void unlink_file_by_name(char *filename)
1437 {
1438 int retval;
1439 ext2_ino_t dir;
1440 char *base_name;
1441
1442 base_name = strrchr(filename, '/');
1443 if (base_name) {
1444 *base_name++ = '\0';
1445 dir = string_to_inode(filename);
1446 if (!dir)
1447 return;
1448 } else {
1449 dir = cwd;
1450 base_name = filename;
1451 }
1452 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1453 if (retval)
1454 com_err("unlink_file_by_name", retval, 0);
1455 return;
1456 }
1457
1458 void do_unlink(int argc, char *argv[])
1459 {
1460 if (common_args_process(argc, argv, 2, 2, "link",
1461 "<pathname>", CHECK_FS_RW))
1462 return;
1463
1464 unlink_file_by_name(argv[1]);
1465 }
1466 #endif /* READ_ONLY */
1467
1468 void do_find_free_block(int argc, char *argv[])
1469 {
1470 blk64_t free_blk, goal, first_free = 0;
1471 int count;
1472 errcode_t retval;
1473 char *tmp;
1474
1475 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1476 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1477 return;
1478 }
1479 if (check_fs_open(argv[0]))
1480 return;
1481
1482 if (argc > 1) {
1483 count = strtol(argv[1],&tmp,0);
1484 if (*tmp) {
1485 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1486 return;
1487 }
1488 } else
1489 count = 1;
1490
1491 if (argc > 2) {
1492 goal = strtol(argv[2], &tmp, 0);
1493 if (*tmp) {
1494 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1495 return;
1496 }
1497 }
1498 else
1499 goal = current_fs->super->s_first_data_block;
1500
1501 printf("Free blocks found: ");
1502 free_blk = goal - 1;
1503 while (count-- > 0) {
1504 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1505 &free_blk);
1506 if (first_free) {
1507 if (first_free == free_blk)
1508 break;
1509 } else
1510 first_free = free_blk;
1511 if (retval) {
1512 com_err("ext2fs_new_block", retval, 0);
1513 return;
1514 } else
1515 printf("%llu ", free_blk);
1516 }
1517 printf("\n");
1518 }
1519
1520 void do_find_free_inode(int argc, char *argv[])
1521 {
1522 ext2_ino_t free_inode, dir;
1523 int mode;
1524 int retval;
1525 char *tmp;
1526
1527 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1528 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1529 return;
1530 }
1531 if (check_fs_open(argv[0]))
1532 return;
1533
1534 if (argc > 1) {
1535 dir = strtol(argv[1], &tmp, 0);
1536 if (*tmp) {
1537 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1538 return;
1539 }
1540 }
1541 else
1542 dir = root;
1543 if (argc > 2) {
1544 mode = strtol(argv[2], &tmp, 0);
1545 if (*tmp) {
1546 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1547 return;
1548 }
1549 } else
1550 mode = 010755;
1551
1552 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1553 if (retval)
1554 com_err("ext2fs_new_inode", retval, 0);
1555 else
1556 printf("Free inode found: %u\n", free_inode);
1557 }
1558
1559 #ifndef READ_ONLY
1560 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1561 {
1562 ext2_file_t e2_file;
1563 errcode_t retval;
1564 int got;
1565 unsigned int written;
1566 char buf[8192];
1567 char *ptr;
1568
1569 retval = ext2fs_file_open(current_fs, newfile,
1570 EXT2_FILE_WRITE, &e2_file);
1571 if (retval)
1572 return retval;
1573
1574 while (1) {
1575 got = read(fd, buf, sizeof(buf));
1576 if (got == 0)
1577 break;
1578 if (got < 0) {
1579 retval = errno;
1580 goto fail;
1581 }
1582 ptr = buf;
1583 while (got > 0) {
1584 retval = ext2fs_file_write(e2_file, ptr,
1585 got, &written);
1586 if (retval)
1587 goto fail;
1588
1589 got -= written;
1590 ptr += written;
1591 }
1592 }
1593 retval = ext2fs_file_close(e2_file);
1594 return retval;
1595
1596 fail:
1597 (void) ext2fs_file_close(e2_file);
1598 return retval;
1599 }
1600
1601
1602 void do_write(int argc, char *argv[])
1603 {
1604 int fd;
1605 struct stat statbuf;
1606 ext2_ino_t newfile;
1607 errcode_t retval;
1608 struct ext2_inode inode;
1609
1610 if (common_args_process(argc, argv, 3, 3, "write",
1611 "<native file> <new file>", CHECK_FS_RW))
1612 return;
1613
1614 fd = open(argv[1], O_RDONLY);
1615 if (fd < 0) {
1616 com_err(argv[1], errno, 0);
1617 return;
1618 }
1619 if (fstat(fd, &statbuf) < 0) {
1620 com_err(argv[1], errno, 0);
1621 close(fd);
1622 return;
1623 }
1624
1625 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1626 if (retval == 0) {
1627 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1628 close(fd);
1629 return;
1630 }
1631
1632 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1633 if (retval) {
1634 com_err(argv[0], retval, 0);
1635 close(fd);
1636 return;
1637 }
1638 printf("Allocated inode: %u\n", newfile);
1639 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1640 EXT2_FT_REG_FILE);
1641 if (retval == EXT2_ET_DIR_NO_SPACE) {
1642 retval = ext2fs_expand_dir(current_fs, cwd);
1643 if (retval) {
1644 com_err(argv[0], retval, "while expanding directory");
1645 close(fd);
1646 return;
1647 }
1648 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1649 EXT2_FT_REG_FILE);
1650 }
1651 if (retval) {
1652 com_err(argv[2], retval, 0);
1653 close(fd);
1654 return;
1655 }
1656 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1657 com_err(argv[0], 0, "Warning: inode already set");
1658 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1659 memset(&inode, 0, sizeof(inode));
1660 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1661 inode.i_atime = inode.i_ctime = inode.i_mtime =
1662 current_fs->now ? current_fs->now : time(0);
1663 inode.i_links_count = 1;
1664 inode.i_size = statbuf.st_size;
1665 if (current_fs->super->s_feature_incompat &
1666 EXT3_FEATURE_INCOMPAT_EXTENTS)
1667 inode.i_flags |= EXT4_EXTENTS_FL;
1668 if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1669 close(fd);
1670 return;
1671 }
1672 if (LINUX_S_ISREG(inode.i_mode)) {
1673 retval = copy_file(fd, newfile);
1674 if (retval)
1675 com_err("copy_file", retval, 0);
1676 }
1677 close(fd);
1678 }
1679
1680 void do_mknod(int argc, char *argv[])
1681 {
1682 unsigned long mode, major, minor;
1683 ext2_ino_t newfile;
1684 errcode_t retval;
1685 struct ext2_inode inode;
1686 int filetype, nr;
1687
1688 if (check_fs_open(argv[0]))
1689 return;
1690 if (argc < 3 || argv[2][1]) {
1691 usage:
1692 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1693 return;
1694 }
1695 mode = minor = major = 0;
1696 switch (argv[2][0]) {
1697 case 'p':
1698 mode = LINUX_S_IFIFO;
1699 filetype = EXT2_FT_FIFO;
1700 nr = 3;
1701 break;
1702 case 'c':
1703 mode = LINUX_S_IFCHR;
1704 filetype = EXT2_FT_CHRDEV;
1705 nr = 5;
1706 break;
1707 case 'b':
1708 mode = LINUX_S_IFBLK;
1709 filetype = EXT2_FT_BLKDEV;
1710 nr = 5;
1711 break;
1712 default:
1713 filetype = 0;
1714 nr = 0;
1715 }
1716 if (nr == 5) {
1717 major = strtoul(argv[3], argv+3, 0);
1718 minor = strtoul(argv[4], argv+4, 0);
1719 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1720 nr = 0;
1721 }
1722 if (argc != nr)
1723 goto usage;
1724 if (check_fs_read_write(argv[0]))
1725 return;
1726 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1727 if (retval) {
1728 com_err(argv[0], retval, 0);
1729 return;
1730 }
1731 printf("Allocated inode: %u\n", newfile);
1732 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1733 if (retval == EXT2_ET_DIR_NO_SPACE) {
1734 retval = ext2fs_expand_dir(current_fs, cwd);
1735 if (retval) {
1736 com_err(argv[0], retval, "while expanding directory");
1737 return;
1738 }
1739 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1740 filetype);
1741 }
1742 if (retval) {
1743 com_err(argv[1], retval, 0);
1744 return;
1745 }
1746 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1747 com_err(argv[0], 0, "Warning: inode already set");
1748 ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1749 ext2fs_mark_ib_dirty(current_fs);
1750 memset(&inode, 0, sizeof(inode));
1751 inode.i_mode = mode;
1752 inode.i_atime = inode.i_ctime = inode.i_mtime =
1753 current_fs->now ? current_fs->now : time(0);
1754 if ((major < 256) && (minor < 256)) {
1755 inode.i_block[0] = major*256+minor;
1756 inode.i_block[1] = 0;
1757 } else {
1758 inode.i_block[0] = 0;
1759 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1760 }
1761 inode.i_links_count = 1;
1762 if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1763 return;
1764 }
1765
1766 void do_mkdir(int argc, char *argv[])
1767 {
1768 char *cp;
1769 ext2_ino_t parent;
1770 char *name;
1771 errcode_t retval;
1772
1773 if (common_args_process(argc, argv, 2, 2, "mkdir",
1774 "<filename>", CHECK_FS_RW))
1775 return;
1776
1777 cp = strrchr(argv[1], '/');
1778 if (cp) {
1779 *cp = 0;
1780 parent = string_to_inode(argv[1]);
1781 if (!parent) {
1782 com_err(argv[1], ENOENT, 0);
1783 return;
1784 }
1785 name = cp+1;
1786 } else {
1787 parent = cwd;
1788 name = argv[1];
1789 }
1790
1791 try_again:
1792 retval = ext2fs_mkdir(current_fs, parent, 0, name);
1793 if (retval == EXT2_ET_DIR_NO_SPACE) {
1794 retval = ext2fs_expand_dir(current_fs, parent);
1795 if (retval) {
1796 com_err(argv[0], retval, "while expanding directory");
1797 return;
1798 }
1799 goto try_again;
1800 }
1801 if (retval) {
1802 com_err("ext2fs_mkdir", retval, 0);
1803 return;
1804 }
1805
1806 }
1807
1808 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1809 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1810 blk64_t ref_block EXT2FS_ATTR((unused)),
1811 int ref_offset EXT2FS_ATTR((unused)),
1812 void *private EXT2FS_ATTR((unused)))
1813 {
1814 blk64_t block;
1815
1816 block = *blocknr;
1817 ext2fs_block_alloc_stats2(fs, block, -1);
1818 return 0;
1819 }
1820
1821 static void kill_file_by_inode(ext2_ino_t inode)
1822 {
1823 struct ext2_inode inode_buf;
1824
1825 if (debugfs_read_inode(inode, &inode_buf, 0))
1826 return;
1827 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1828 if (debugfs_write_inode(inode, &inode_buf, 0))
1829 return;
1830 if (!ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf))
1831 return;
1832
1833 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1834 release_blocks_proc, NULL);
1835 printf("\n");
1836 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1837 LINUX_S_ISDIR(inode_buf.i_mode));
1838 }
1839
1840
1841 void do_kill_file(int argc, char *argv[])
1842 {
1843 ext2_ino_t inode_num;
1844
1845 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1846 return;
1847
1848 kill_file_by_inode(inode_num);
1849 }
1850
1851 void do_rm(int argc, char *argv[])
1852 {
1853 int retval;
1854 ext2_ino_t inode_num;
1855 struct ext2_inode inode;
1856
1857 if (common_args_process(argc, argv, 2, 2, "rm",
1858 "<filename>", CHECK_FS_RW))
1859 return;
1860
1861 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1862 if (retval) {
1863 com_err(argv[0], retval, "while trying to resolve filename");
1864 return;
1865 }
1866
1867 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1868 return;
1869
1870 if (LINUX_S_ISDIR(inode.i_mode)) {
1871 com_err(argv[0], 0, "file is a directory");
1872 return;
1873 }
1874
1875 --inode.i_links_count;
1876 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1877 return;
1878
1879 unlink_file_by_name(argv[1]);
1880 if (inode.i_links_count == 0)
1881 kill_file_by_inode(inode_num);
1882 }
1883
1884 struct rd_struct {
1885 ext2_ino_t parent;
1886 int empty;
1887 };
1888
1889 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1890 int entry EXT2FS_ATTR((unused)),
1891 struct ext2_dir_entry *dirent,
1892 int offset EXT2FS_ATTR((unused)),
1893 int blocksize EXT2FS_ATTR((unused)),
1894 char *buf EXT2FS_ATTR((unused)),
1895 void *private)
1896 {
1897 struct rd_struct *rds = (struct rd_struct *) private;
1898
1899 if (dirent->inode == 0)
1900 return 0;
1901 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1902 return 0;
1903 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1904 (dirent->name[1] == '.')) {
1905 rds->parent = dirent->inode;
1906 return 0;
1907 }
1908 rds->empty = 0;
1909 return 0;
1910 }
1911
1912 void do_rmdir(int argc, char *argv[])
1913 {
1914 int retval;
1915 ext2_ino_t inode_num;
1916 struct ext2_inode inode;
1917 struct rd_struct rds;
1918
1919 if (common_args_process(argc, argv, 2, 2, "rmdir",
1920 "<filename>", CHECK_FS_RW))
1921 return;
1922
1923 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1924 if (retval) {
1925 com_err(argv[0], retval, "while trying to resolve filename");
1926 return;
1927 }
1928
1929 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1930 return;
1931
1932 if (!LINUX_S_ISDIR(inode.i_mode)) {
1933 com_err(argv[0], 0, "file is not a directory");
1934 return;
1935 }
1936
1937 rds.parent = 0;
1938 rds.empty = 1;
1939
1940 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1941 0, rmdir_proc, &rds);
1942 if (retval) {
1943 com_err(argv[0], retval, "while iterating over directory");
1944 return;
1945 }
1946 if (rds.empty == 0) {
1947 com_err(argv[0], 0, "directory not empty");
1948 return;
1949 }
1950
1951 inode.i_links_count = 0;
1952 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1953 return;
1954
1955 unlink_file_by_name(argv[1]);
1956 kill_file_by_inode(inode_num);
1957
1958 if (rds.parent) {
1959 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1960 return;
1961 if (inode.i_links_count > 1)
1962 inode.i_links_count--;
1963 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1964 return;
1965 }
1966 }
1967 #endif /* READ_ONLY */
1968
1969 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1970 char *argv[] EXT2FS_ATTR((unused)))
1971 {
1972 FILE *out = stdout;
1973
1974 if (current_fs)
1975 fprintf(out, "Open mode: read-%s\n",
1976 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1977 fprintf(out, "Filesystem in use: %s\n",
1978 current_fs ? current_fs->device_name : "--none--");
1979 }
1980
1981 #ifndef READ_ONLY
1982 void do_expand_dir(int argc, char *argv[])
1983 {
1984 ext2_ino_t inode;
1985 int retval;
1986
1987 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1988 return;
1989
1990 retval = ext2fs_expand_dir(current_fs, inode);
1991 if (retval)
1992 com_err("ext2fs_expand_dir", retval, 0);
1993 return;
1994 }
1995
1996 void do_features(int argc, char *argv[])
1997 {
1998 int i;
1999
2000 if (check_fs_open(argv[0]))
2001 return;
2002
2003 if ((argc != 1) && check_fs_read_write(argv[0]))
2004 return;
2005 for (i=1; i < argc; i++) {
2006 if (e2p_edit_feature(argv[i],
2007 &current_fs->super->s_feature_compat, 0))
2008 com_err(argv[0], 0, "Unknown feature: %s\n",
2009 argv[i]);
2010 else
2011 ext2fs_mark_super_dirty(current_fs);
2012 }
2013 print_features(current_fs->super, stdout);
2014 }
2015 #endif /* READ_ONLY */
2016
2017 void do_bmap(int argc, char *argv[])
2018 {
2019 ext2_ino_t ino;
2020 blk64_t blk, pblk;
2021 int err;
2022 errcode_t errcode;
2023
2024 if (common_args_process(argc, argv, 3, 3, argv[0],
2025 "<file> logical_blk", 0))
2026 return;
2027
2028 ino = string_to_inode(argv[1]);
2029 if (!ino)
2030 return;
2031 blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
2032
2033 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
2034 if (errcode) {
2035 com_err("argv[0]", errcode,
2036 "while mapping logical block %llu\n", blk);
2037 return;
2038 }
2039 printf("%llu\n", pblk);
2040 }
2041
2042 void do_imap(int argc, char *argv[])
2043 {
2044 ext2_ino_t ino;
2045 unsigned long group, block, block_nr, offset;
2046
2047 if (common_args_process(argc, argv, 2, 2, argv[0],
2048 "<file>", 0))
2049 return;
2050 ino = string_to_inode(argv[1]);
2051 if (!ino)
2052 return;
2053
2054 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2055 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2056 EXT2_INODE_SIZE(current_fs->super);
2057 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2058 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2059 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2060 group);
2061 return;
2062 }
2063 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2064 block;
2065 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2066
2067 printf("Inode %d is part of block group %lu\n"
2068 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2069 block_nr, offset);
2070
2071 }
2072
2073 #ifndef READ_ONLY
2074 void do_set_current_time(int argc, char *argv[])
2075 {
2076 time_t now;
2077
2078 if (common_args_process(argc, argv, 2, 2, argv[0],
2079 "<time>", 0))
2080 return;
2081
2082 now = string_to_time(argv[1]);
2083 if (now == ((time_t) -1)) {
2084 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2085 argv[1]);
2086 return;
2087
2088 } else {
2089 printf("Setting current time to %s\n", time_to_string(now));
2090 current_fs->now = now;
2091 }
2092 }
2093 #endif /* READ_ONLY */
2094
2095 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2096 {
2097 int compat, bit, ret;
2098 unsigned int feature_mask;
2099
2100 if (name) {
2101 if (feature_type == E2P_FS_FEATURE)
2102 ret = e2p_string2feature(name, &compat, &feature_mask);
2103 else
2104 ret = e2p_jrnl_string2feature(name, &compat,
2105 &feature_mask);
2106 if (ret)
2107 return ret;
2108
2109 if (!(supp[compat] & feature_mask))
2110 return 1;
2111 } else {
2112 for (compat = 0; compat < 3; compat++) {
2113 for (bit = 0, feature_mask = 1; bit < 32;
2114 bit++, feature_mask <<= 1) {
2115 if (supp[compat] & feature_mask) {
2116 if (feature_type == E2P_FS_FEATURE)
2117 fprintf(stdout, " %s",
2118 e2p_feature2string(compat,
2119 feature_mask));
2120 else
2121 fprintf(stdout, " %s",
2122 e2p_jrnl_feature2string(compat,
2123 feature_mask));
2124 }
2125 }
2126 }
2127 fprintf(stdout, "\n");
2128 }
2129
2130 return 0;
2131 }
2132
2133 void do_supported_features(int argc, char *argv[])
2134 {
2135 int ret;
2136 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2137 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2138 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2139 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2140 JFS_KNOWN_INCOMPAT_FEATURES,
2141 JFS_KNOWN_ROCOMPAT_FEATURES };
2142
2143 if (argc > 1) {
2144 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2145 if (ret) {
2146 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2147 argv[1]);
2148 }
2149 if (ret)
2150 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2151 else
2152 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2153 } else {
2154 fprintf(stdout, "Supported features:");
2155 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2156 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2157 }
2158 }
2159
2160 #ifndef READ_ONLY
2161 void do_punch(int argc, char *argv[])
2162 {
2163 ext2_ino_t ino;
2164 blk64_t start, end;
2165 int err;
2166 errcode_t errcode;
2167
2168 if (common_args_process(argc, argv, 3, 4, argv[0],
2169 "<file> start_blk [end_blk]",
2170 CHECK_FS_RW | CHECK_FS_BITMAPS))
2171 return;
2172
2173 ino = string_to_inode(argv[1]);
2174 if (!ino)
2175 return;
2176 start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2177 if (argc == 4)
2178 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2179 else
2180 end = ~0;
2181
2182 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2183
2184 if (errcode) {
2185 com_err(argv[0], errcode,
2186 "while truncating inode %u from %llu to %llu\n", ino,
2187 (unsigned long long) start, (unsigned long long) end);
2188 return;
2189 }
2190 }
2191 #endif /* READ_ONLY */
2192
2193 void do_dump_mmp(int argc, char *argv[])
2194 {
2195 struct ext2_super_block *sb;
2196 struct mmp_struct *mmp_s;
2197 time_t t;
2198 errcode_t retval = 0;
2199
2200 if (check_fs_open(argv[0]))
2201 return;
2202
2203 sb = current_fs->super;
2204 if (sb->s_mmp_block <= sb->s_first_data_block ||
2205 sb->s_mmp_block >= ext2fs_blocks_count(sb)) {
2206 com_err(argv[0], EXT2_ET_MMP_BAD_BLOCK, "while dumping it.\n");
2207 return;
2208 }
2209
2210 if (current_fs->mmp_buf == NULL) {
2211 retval = ext2fs_get_mem(current_fs->blocksize,
2212 &current_fs->mmp_buf);
2213 if (retval) {
2214 com_err(argv[0], retval, "allocating MMP buffer.\n");
2215 return;
2216 }
2217 }
2218
2219 mmp_s = current_fs->mmp_buf;
2220
2221 retval = ext2fs_mmp_read(current_fs, current_fs->super->s_mmp_block,
2222 current_fs->mmp_buf);
2223 if (retval) {
2224 com_err(argv[0], retval, "reading MMP block.\n");
2225 return;
2226 }
2227
2228 t = mmp_s->mmp_time;
2229 fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2230 fprintf(stdout, "update_interval: %d\n",
2231 current_fs->super->s_mmp_update_interval);
2232 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2233 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2234 fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2235 fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2236 fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2237 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2238 }
2239
2240 static int source_file(const char *cmd_file, int sci_idx)
2241 {
2242 FILE *f;
2243 char buf[256];
2244 char *cp;
2245 int exit_status = 0;
2246 int retval;
2247
2248 if (strcmp(cmd_file, "-") == 0)
2249 f = stdin;
2250 else {
2251 f = fopen(cmd_file, "r");
2252 if (!f) {
2253 perror(cmd_file);
2254 exit(1);
2255 }
2256 }
2257 fflush(stdout);
2258 fflush(stderr);
2259 setbuf(stdout, NULL);
2260 setbuf(stderr, NULL);
2261 while (!feof(f)) {
2262 if (fgets(buf, sizeof(buf), f) == NULL)
2263 break;
2264 cp = strchr(buf, '\n');
2265 if (cp)
2266 *cp = 0;
2267 cp = strchr(buf, '\r');
2268 if (cp)
2269 *cp = 0;
2270 printf("debugfs: %s\n", buf);
2271 retval = ss_execute_line(sci_idx, buf);
2272 if (retval) {
2273 ss_perror(sci_idx, retval, buf);
2274 exit_status++;
2275 }
2276 }
2277 if (f != stdin)
2278 fclose(f);
2279 return exit_status;
2280 }
2281
2282 int main(int argc, char **argv)
2283 {
2284 int retval;
2285 int sci_idx;
2286 const char *usage =
2287 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2288 "[-R request] [-V] ["
2289 #ifndef READ_ONLY
2290 "[-w] "
2291 #endif
2292 "[-c] device]";
2293 int c;
2294 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2295 char *request = 0;
2296 int exit_status = 0;
2297 char *cmd_file = 0;
2298 blk64_t superblock = 0;
2299 blk64_t blocksize = 0;
2300 int catastrophic = 0;
2301 char *data_filename = 0;
2302 #ifdef READ_ONLY
2303 const char *opt_string = "icR:f:b:s:Vd:D";
2304 #else
2305 const char *opt_string = "iwcR:f:b:s:Vd:D";
2306 #endif
2307
2308 if (debug_prog_name == 0)
2309 #ifdef READ_ONLY
2310 debug_prog_name = "rdebugfs";
2311 #else
2312 debug_prog_name = "debugfs";
2313 #endif
2314 add_error_table(&et_ext2_error_table);
2315 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2316 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2317
2318 while ((c = getopt (argc, argv, opt_string)) != EOF) {
2319 switch (c) {
2320 case 'R':
2321 request = optarg;
2322 break;
2323 case 'f':
2324 cmd_file = optarg;
2325 break;
2326 case 'd':
2327 data_filename = optarg;
2328 break;
2329 case 'i':
2330 open_flags |= EXT2_FLAG_IMAGE_FILE;
2331 break;
2332 #ifndef READ_ONLY
2333 case 'w':
2334 open_flags |= EXT2_FLAG_RW;
2335 break;
2336 #endif
2337 case 'D':
2338 open_flags |= EXT2_FLAG_DIRECT_IO;
2339 break;
2340 case 'b':
2341 blocksize = parse_ulong(optarg, argv[0],
2342 "block size", 0);
2343 break;
2344 case 's':
2345 superblock = parse_ulong(optarg, argv[0],
2346 "superblock number", 0);
2347 break;
2348 case 'c':
2349 catastrophic = 1;
2350 break;
2351 case 'V':
2352 /* Print version number and exit */
2353 fprintf(stderr, "\tUsing %s\n",
2354 error_message(EXT2_ET_BASE));
2355 exit(0);
2356 default:
2357 com_err(argv[0], 0, usage, debug_prog_name);
2358 return 1;
2359 }
2360 }
2361 if (optind < argc)
2362 open_filesystem(argv[optind], open_flags,
2363 superblock, blocksize, catastrophic,
2364 data_filename);
2365
2366 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2367 &debug_cmds, &retval);
2368 if (retval) {
2369 ss_perror(sci_idx, retval, "creating invocation");
2370 exit(1);
2371 }
2372 ss_get_readline(sci_idx);
2373
2374 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2375 if (retval) {
2376 ss_perror(sci_idx, retval, "adding standard requests");
2377 exit (1);
2378 }
2379 if (extra_cmds)
2380 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2381 if (retval) {
2382 ss_perror(sci_idx, retval, "adding extra requests");
2383 exit (1);
2384 }
2385 if (request) {
2386 retval = 0;
2387 retval = ss_execute_line(sci_idx, request);
2388 if (retval) {
2389 ss_perror(sci_idx, retval, request);
2390 exit_status++;
2391 }
2392 } else if (cmd_file) {
2393 exit_status = source_file(cmd_file, sci_idx);
2394 } else {
2395 ss_listen(sci_idx);
2396 }
2397
2398 ss_delete_invocation(sci_idx);
2399
2400 if (current_fs)
2401 close_filesystem();
2402
2403 remove_error_table(&et_ext2_error_table);
2404 return exit_status;
2405 }
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