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[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
83 retval = ext2fs_open(device, open_flags, superblock, blocksize,
84 unix_io_manager, &current_fs);
85 if (retval) {
86 com_err(device, retval, "while opening filesystem");
87 current_fs = NULL;
88 return;
89 }
90
91 if (catastrophic)
92 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
93 else {
94 retval = ext2fs_read_inode_bitmap(current_fs);
95 if (retval) {
96 com_err(device, retval, "while reading inode bitmap");
97 goto errout;
98 }
99 retval = ext2fs_read_block_bitmap(current_fs);
100 if (retval) {
101 com_err(device, retval, "while reading block bitmap");
102 goto errout;
103 }
104 }
105
106 if (data_io) {
107 retval = ext2fs_set_data_io(current_fs, data_io);
108 if (retval) {
109 com_err(device, retval,
110 "while setting data source");
111 goto errout;
112 }
113 }
114
115 root = cwd = EXT2_ROOT_INO;
116 return;
117
118 errout:
119 retval = ext2fs_close(current_fs);
120 if (retval)
121 com_err(device, retval, "while trying to close filesystem");
122 current_fs = NULL;
123 }
124
125 void do_open_filesys(int argc, char **argv)
126 {
127 int c, err;
128 int catastrophic = 0;
129 blk64_t superblock = 0;
130 blk64_t blocksize = 0;
131 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
132 char *data_filename = 0;
133
134 reset_getopt();
135 while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
136 switch (c) {
137 case 'i':
138 open_flags |= EXT2_FLAG_IMAGE_FILE;
139 break;
140 case 'w':
141 open_flags |= EXT2_FLAG_RW;
142 break;
143 case 'f':
144 open_flags |= EXT2_FLAG_FORCE;
145 break;
146 case 'e':
147 open_flags |= EXT2_FLAG_EXCLUSIVE;
148 break;
149 case 'c':
150 catastrophic = 1;
151 break;
152 case 'd':
153 data_filename = optarg;
154 break;
155 case 'D':
156 open_flags |= EXT2_FLAG_DIRECT_IO;
157 break;
158 case 'b':
159 blocksize = parse_ulong(optarg, argv[0],
160 "block size", &err);
161 if (err)
162 return;
163 break;
164 case 's':
165 superblock = parse_ulong(optarg, argv[0],
166 "superblock number", &err);
167 if (err)
168 return;
169 break;
170 default:
171 goto print_usage;
172 }
173 }
174 if (optind != argc-1) {
175 goto print_usage;
176 }
177 if (check_fs_not_open(argv[0]))
178 return;
179 open_filesystem(argv[optind], open_flags,
180 superblock, blocksize, catastrophic,
181 data_filename);
182 return;
183
184 print_usage:
185 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
186 "[-c] [-w] <device>\n", argv[0]);
187 }
188
189 void do_lcd(int argc, char **argv)
190 {
191 if (argc != 2) {
192 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
193 return;
194 }
195
196 if (chdir(argv[1]) == -1) {
197 com_err(argv[0], errno,
198 "while trying to change native directory to %s",
199 argv[1]);
200 return;
201 }
202 }
203
204 static void close_filesystem(NOARGS)
205 {
206 int retval;
207
208 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
209 retval = ext2fs_write_inode_bitmap(current_fs);
210 if (retval)
211 com_err("ext2fs_write_inode_bitmap", retval, 0);
212 }
213 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
214 retval = ext2fs_write_block_bitmap(current_fs);
215 if (retval)
216 com_err("ext2fs_write_block_bitmap", retval, 0);
217 }
218 retval = ext2fs_close(current_fs);
219 if (retval)
220 com_err("ext2fs_close", retval, 0);
221 current_fs = NULL;
222 return;
223 }
224
225 void do_close_filesys(int argc, char **argv)
226 {
227 int c;
228
229 if (check_fs_open(argv[0]))
230 return;
231
232 reset_getopt();
233 while ((c = getopt (argc, argv, "a")) != EOF) {
234 switch (c) {
235 case 'a':
236 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
237 break;
238 default:
239 goto print_usage;
240 }
241 }
242
243 if (argc > optind) {
244 print_usage:
245 com_err(0, 0, "Usage: close_filesys [-a]");
246 return;
247 }
248
249 close_filesystem();
250 }
251
252 void do_init_filesys(int argc, char **argv)
253 {
254 struct ext2_super_block param;
255 errcode_t retval;
256 int err;
257
258 if (common_args_process(argc, argv, 3, 3, "initialize",
259 "<device> <blocksize>", CHECK_FS_NOTOPEN))
260 return;
261
262 memset(&param, 0, sizeof(struct ext2_super_block));
263 ext2fs_blocks_count_set(&param, parse_ulong(argv[2], argv[0],
264 "blocks count", &err));
265 if (err)
266 return;
267 retval = ext2fs_initialize(argv[1], 0, &param,
268 unix_io_manager, &current_fs);
269 if (retval) {
270 com_err(argv[1], retval, "while initializing filesystem");
271 current_fs = NULL;
272 return;
273 }
274 root = cwd = EXT2_ROOT_INO;
275 return;
276 }
277
278 static void print_features(struct ext2_super_block * s, FILE *f)
279 {
280 int i, j, printed=0;
281 __u32 *mask = &s->s_feature_compat, m;
282
283 fputs("Filesystem features:", f);
284 for (i=0; i <3; i++,mask++) {
285 for (j=0,m=1; j < 32; j++, m<<=1) {
286 if (*mask & m) {
287 fprintf(f, " %s", e2p_feature2string(i, m));
288 printed++;
289 }
290 }
291 }
292 if (printed == 0)
293 fputs("(none)", f);
294 fputs("\n", f);
295 }
296
297 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
298 const char *str, int *first, FILE *f)
299 {
300 if (ext2fs_bg_flags_test(fs, group, mask)) {
301 if (*first) {
302 fputs(" [", f);
303 *first = 0;
304 } else
305 fputs(", ", f);
306 fputs(str, f);
307 }
308 }
309
310 void do_show_super_stats(int argc, char *argv[])
311 {
312 const char *units ="block";
313 dgrp_t i;
314 FILE *out;
315 int c, header_only = 0;
316 int numdirs = 0, first, gdt_csum;
317
318 reset_getopt();
319 while ((c = getopt (argc, argv, "h")) != EOF) {
320 switch (c) {
321 case 'h':
322 header_only++;
323 break;
324 default:
325 goto print_usage;
326 }
327 }
328 if (optind != argc) {
329 goto print_usage;
330 }
331 if (check_fs_open(argv[0]))
332 return;
333 out = open_pager();
334
335 if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
336 EXT4_FEATURE_RO_COMPAT_BIGALLOC))
337 units = "cluster";
338
339 list_super2(current_fs->super, out);
340 for (i=0; i < current_fs->group_desc_count; i++)
341 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
342 fprintf(out, "Directories: %d\n", numdirs);
343
344 if (header_only) {
345 close_pager(out);
346 return;
347 }
348
349 gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
350 EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
351 for (i = 0; i < current_fs->group_desc_count; i++) {
352 fprintf(out, " Group %2d: block bitmap at %llu, "
353 "inode bitmap at %llu, "
354 "inode table at %llu\n"
355 " %u free %s%s, "
356 "%u free %s, "
357 "%u used %s%s",
358 i, ext2fs_block_bitmap_loc(current_fs, i),
359 ext2fs_inode_bitmap_loc(current_fs, i),
360 ext2fs_inode_table_loc(current_fs, i),
361 ext2fs_bg_free_blocks_count(current_fs, i), units,
362 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
363 "s" : "",
364 ext2fs_bg_free_inodes_count(current_fs, i),
365 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
366 "inodes" : "inode",
367 ext2fs_bg_used_dirs_count(current_fs, i),
368 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
369 : "directory", gdt_csum ? ", " : "\n");
370 if (gdt_csum)
371 fprintf(out, "%u unused %s\n",
372 ext2fs_bg_itable_unused(current_fs, i),
373 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
374 "inodes" : "inode");
375 first = 1;
376 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
377 &first, out);
378 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
379 &first, out);
380 if (gdt_csum) {
381 fprintf(out, "%sChecksum 0x%04x",
382 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
383 first = 0;
384 }
385 if (!first)
386 fputs("]\n", out);
387 }
388 close_pager(out);
389 return;
390 print_usage:
391 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
392 }
393
394 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
395 char **argv EXT2FS_ATTR((unused)))
396 {
397 if (check_fs_open(argv[0]))
398 return;
399 if (check_fs_read_write(argv[0]))
400 return;
401
402 if (argv[1] && !strcmp(argv[1], "-clean"))
403 current_fs->super->s_state |= EXT2_VALID_FS;
404 else
405 current_fs->super->s_state &= ~EXT2_VALID_FS;
406 ext2fs_mark_super_dirty(current_fs);
407 }
408
409 struct list_blocks_struct {
410 FILE *f;
411 e2_blkcnt_t total;
412 blk64_t first_block, last_block;
413 e2_blkcnt_t first_bcnt, last_bcnt;
414 e2_blkcnt_t first;
415 };
416
417 static void finish_range(struct list_blocks_struct *lb)
418 {
419 if (lb->first_block == 0)
420 return;
421 if (lb->first)
422 lb->first = 0;
423 else
424 fprintf(lb->f, ", ");
425 if (lb->first_block == lb->last_block)
426 fprintf(lb->f, "(%lld):%llu",
427 (long long)lb->first_bcnt, lb->first_block);
428 else
429 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
430 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
431 lb->first_block, lb->last_block);
432 lb->first_block = 0;
433 }
434
435 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
436 blk64_t *blocknr, e2_blkcnt_t blockcnt,
437 blk64_t ref_block EXT2FS_ATTR((unused)),
438 int ref_offset EXT2FS_ATTR((unused)),
439 void *private)
440 {
441 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
442
443 lb->total++;
444 if (blockcnt >= 0) {
445 /*
446 * See if we can add on to the existing range (if it exists)
447 */
448 if (lb->first_block &&
449 (lb->last_block+1 == *blocknr) &&
450 (lb->last_bcnt+1 == blockcnt)) {
451 lb->last_block = *blocknr;
452 lb->last_bcnt = blockcnt;
453 return 0;
454 }
455 /*
456 * Start a new range.
457 */
458 finish_range(lb);
459 lb->first_block = lb->last_block = *blocknr;
460 lb->first_bcnt = lb->last_bcnt = blockcnt;
461 return 0;
462 }
463 /*
464 * Not a normal block. Always force a new range.
465 */
466 finish_range(lb);
467 if (lb->first)
468 lb->first = 0;
469 else
470 fprintf(lb->f, ", ");
471 if (blockcnt == -1)
472 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
473 else if (blockcnt == -2)
474 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
475 else if (blockcnt == -3)
476 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
477 return 0;
478 }
479
480 static void dump_xattr_string(FILE *out, const char *str, int len)
481 {
482 int printable = 0;
483 int i;
484
485 /* check: is string "printable enough?" */
486 for (i = 0; i < len; i++)
487 if (isprint(str[i]))
488 printable++;
489
490 if (printable <= len*7/8)
491 printable = 0;
492
493 for (i = 0; i < len; i++)
494 if (printable)
495 fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
496 (unsigned char)str[i]);
497 else
498 fprintf(out, "%02x ", (unsigned char)str[i]);
499 }
500
501 static void internal_dump_inode_extra(FILE *out,
502 const char *prefix EXT2FS_ATTR((unused)),
503 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
504 struct ext2_inode_large *inode)
505 {
506 struct ext2_ext_attr_entry *entry;
507 __u32 *magic;
508 char *start, *end;
509 unsigned int storage_size;
510
511 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
512 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
513 EXT2_GOOD_OLD_INODE_SIZE) {
514 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
515 inode->i_extra_isize);
516 return;
517 }
518 storage_size = EXT2_INODE_SIZE(current_fs->super) -
519 EXT2_GOOD_OLD_INODE_SIZE -
520 inode->i_extra_isize;
521 magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
522 inode->i_extra_isize);
523 if (*magic == EXT2_EXT_ATTR_MAGIC) {
524 fprintf(out, "Extended attributes stored in inode body: \n");
525 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
526 start = (char *) magic + sizeof(__u32);
527 entry = (struct ext2_ext_attr_entry *) start;
528 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
529 struct ext2_ext_attr_entry *next =
530 EXT2_EXT_ATTR_NEXT(entry);
531 if (entry->e_value_size > storage_size ||
532 (char *) next >= end) {
533 fprintf(out, "invalid EA entry in inode\n");
534 return;
535 }
536 fprintf(out, " ");
537 dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
538 entry->e_name_len);
539 fprintf(out, " = \"");
540 dump_xattr_string(out, start + entry->e_value_offs,
541 entry->e_value_size);
542 fprintf(out, "\" (%u)\n", entry->e_value_size);
543 entry = next;
544 }
545 }
546 }
547
548 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
549 {
550 struct list_blocks_struct lb;
551
552 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
553 lb.total = 0;
554 lb.first_block = 0;
555 lb.f = f;
556 lb.first = 1;
557 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
558 list_blocks_proc, (void *)&lb);
559 finish_range(&lb);
560 if (lb.total)
561 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
562 fprintf(f,"\n");
563 }
564
565 static int int_log10(unsigned long long arg)
566 {
567 int l = 0;
568
569 arg = arg / 10;
570 while (arg) {
571 l++;
572 arg = arg / 10;
573 }
574 return l;
575 }
576
577 #define DUMP_LEAF_EXTENTS 0x01
578 #define DUMP_NODE_EXTENTS 0x02
579 #define DUMP_EXTENT_TABLE 0x04
580
581 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
582 int flags, int logical_width, int physical_width)
583 {
584 ext2_extent_handle_t handle;
585 struct ext2fs_extent extent;
586 struct ext2_extent_info info;
587 int op = EXT2_EXTENT_ROOT;
588 unsigned int printed = 0;
589 errcode_t errcode;
590
591 errcode = ext2fs_extent_open(current_fs, ino, &handle);
592 if (errcode)
593 return;
594
595 if (flags & DUMP_EXTENT_TABLE)
596 fprintf(f, "Level Entries %*s %*s Length Flags\n",
597 (logical_width*2)+3, "Logical",
598 (physical_width*2)+3, "Physical");
599 else
600 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
601
602 while (1) {
603 errcode = ext2fs_extent_get(handle, op, &extent);
604
605 if (errcode)
606 break;
607
608 op = EXT2_EXTENT_NEXT;
609
610 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
611 continue;
612
613 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
614 if ((flags & DUMP_LEAF_EXTENTS) == 0)
615 continue;
616 } else {
617 if ((flags & DUMP_NODE_EXTENTS) == 0)
618 continue;
619 }
620
621 errcode = ext2fs_extent_get_info(handle, &info);
622 if (errcode)
623 continue;
624
625 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
626 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
627 continue;
628
629 if (flags & DUMP_EXTENT_TABLE) {
630 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
631 "%*llu%*s %6u\n",
632 info.curr_level, info.max_depth,
633 info.curr_entry, info.num_entries,
634 logical_width,
635 extent.e_lblk,
636 logical_width,
637 extent.e_lblk + (extent.e_len - 1),
638 physical_width,
639 extent.e_pblk,
640 physical_width+3, "", extent.e_len);
641 continue;
642 }
643
644 fprintf(f, "%s(ETB%d):%lld",
645 printed ? ", " : "", info.curr_level,
646 extent.e_pblk);
647 printed = 1;
648 continue;
649 }
650
651 if (flags & DUMP_EXTENT_TABLE) {
652 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
653 "%*llu - %*llu %6u %s\n",
654 info.curr_level, info.max_depth,
655 info.curr_entry, info.num_entries,
656 logical_width,
657 extent.e_lblk,
658 logical_width,
659 extent.e_lblk + (extent.e_len - 1),
660 physical_width,
661 extent.e_pblk,
662 physical_width,
663 extent.e_pblk + (extent.e_len - 1),
664 extent.e_len,
665 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
666 "Uninit" : "");
667 continue;
668 }
669
670 if (extent.e_len == 0)
671 continue;
672 else if (extent.e_len == 1)
673 fprintf(f,
674 "%s(%lld%s):%lld",
675 printed ? ", " : "",
676 extent.e_lblk,
677 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
678 "[u]" : "",
679 extent.e_pblk);
680 else
681 fprintf(f,
682 "%s(%lld-%lld%s):%lld-%lld",
683 printed ? ", " : "",
684 extent.e_lblk,
685 extent.e_lblk + (extent.e_len - 1),
686 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
687 "[u]" : "",
688 extent.e_pblk,
689 extent.e_pblk + (extent.e_len - 1));
690 printed = 1;
691 }
692 if (printed)
693 fprintf(f, "\n");
694 }
695
696 void internal_dump_inode(FILE *out, const char *prefix,
697 ext2_ino_t inode_num, struct ext2_inode *inode,
698 int do_dump_blocks)
699 {
700 const char *i_type;
701 char frag, fsize;
702 int os = current_fs->super->s_creator_os;
703 struct ext2_inode_large *large_inode;
704 int is_large_inode = 0;
705
706 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
707 is_large_inode = 1;
708 large_inode = (struct ext2_inode_large *) inode;
709
710 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
711 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
712 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
713 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
714 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
715 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
716 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
717 else i_type = "bad type";
718 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
719 fprintf(out, "%sMode: %04o Flags: 0x%x\n",
720 prefix, inode->i_mode & 0777, inode->i_flags);
721 if (is_large_inode && large_inode->i_extra_isize >= 24) {
722 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
723 prefix, inode->i_generation, large_inode->i_version_hi,
724 inode->osd1.linux1.l_i_version);
725 } else {
726 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
727 inode->i_generation, inode->osd1.linux1.l_i_version);
728 }
729 fprintf(out, "%sUser: %5d Group: %5d Size: ",
730 prefix, inode_uid(*inode), inode_gid(*inode));
731 if (LINUX_S_ISREG(inode->i_mode))
732 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
733 else
734 fprintf(out, "%d\n", inode->i_size);
735 if (os == EXT2_OS_HURD)
736 fprintf(out,
737 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
738 prefix,
739 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
740 inode->osd1.hurd1.h_i_translator);
741 else
742 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n",
743 prefix,
744 inode->i_file_acl | ((long long)
745 (inode->osd2.linux2.l_i_file_acl_high) << 32),
746 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
747 if (os == EXT2_OS_LINUX)
748 fprintf(out, "%sLinks: %d Blockcount: %llu\n",
749 prefix, inode->i_links_count,
750 (((unsigned long long)
751 inode->osd2.linux2.l_i_blocks_hi << 32)) +
752 inode->i_blocks);
753 else
754 fprintf(out, "%sLinks: %d Blockcount: %u\n",
755 prefix, inode->i_links_count, inode->i_blocks);
756 switch (os) {
757 case EXT2_OS_HURD:
758 frag = inode->osd2.hurd2.h_i_frag;
759 fsize = inode->osd2.hurd2.h_i_fsize;
760 break;
761 default:
762 frag = fsize = 0;
763 }
764 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
765 prefix, inode->i_faddr, frag, fsize);
766 if (is_large_inode && large_inode->i_extra_isize >= 24) {
767 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
768 inode->i_ctime, large_inode->i_ctime_extra,
769 time_to_string(inode->i_ctime));
770 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
771 inode->i_atime, large_inode->i_atime_extra,
772 time_to_string(inode->i_atime));
773 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
774 inode->i_mtime, large_inode->i_mtime_extra,
775 time_to_string(inode->i_mtime));
776 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
777 large_inode->i_crtime, large_inode->i_crtime_extra,
778 time_to_string(large_inode->i_crtime));
779 } else {
780 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
781 time_to_string(inode->i_ctime));
782 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
783 time_to_string(inode->i_atime));
784 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
785 time_to_string(inode->i_mtime));
786 }
787 if (inode->i_dtime)
788 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
789 time_to_string(inode->i_dtime));
790 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
791 internal_dump_inode_extra(out, prefix, inode_num,
792 (struct ext2_inode_large *) inode);
793 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
794 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
795 (int) inode->i_size, (char *)inode->i_block);
796 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
797 int major, minor;
798 const char *devnote;
799
800 if (inode->i_block[0]) {
801 major = (inode->i_block[0] >> 8) & 255;
802 minor = inode->i_block[0] & 255;
803 devnote = "";
804 } else {
805 major = (inode->i_block[1] & 0xfff00) >> 8;
806 minor = ((inode->i_block[1] & 0xff) |
807 ((inode->i_block[1] >> 12) & 0xfff00));
808 devnote = "(New-style) ";
809 }
810 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
811 devnote, major, minor, major, minor);
812 } else if (do_dump_blocks) {
813 if (inode->i_flags & EXT4_EXTENTS_FL)
814 dump_extents(out, prefix, inode_num,
815 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
816 else
817 dump_blocks(out, prefix, inode_num);
818 }
819 }
820
821 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
822 {
823 FILE *out;
824
825 out = open_pager();
826 internal_dump_inode(out, "", inode_num, inode, 1);
827 close_pager(out);
828 }
829
830 void do_stat(int argc, char *argv[])
831 {
832 ext2_ino_t inode;
833 struct ext2_inode * inode_buf;
834
835 if (check_fs_open(argv[0]))
836 return;
837
838 inode_buf = (struct ext2_inode *)
839 malloc(EXT2_INODE_SIZE(current_fs->super));
840 if (!inode_buf) {
841 fprintf(stderr, "do_stat: can't allocate buffer\n");
842 return;
843 }
844
845 if (common_inode_args_process(argc, argv, &inode, 0)) {
846 free(inode_buf);
847 return;
848 }
849
850 if (debugfs_read_inode_full(inode, inode_buf, argv[0],
851 EXT2_INODE_SIZE(current_fs->super))) {
852 free(inode_buf);
853 return;
854 }
855
856 dump_inode(inode, inode_buf);
857 free(inode_buf);
858 return;
859 }
860
861 void do_dump_extents(int argc, char **argv)
862 {
863 struct ext2_inode inode;
864 ext2_ino_t ino;
865 FILE *out;
866 int c, flags = 0;
867 int logical_width;
868 int physical_width;
869
870 reset_getopt();
871 while ((c = getopt(argc, argv, "nl")) != EOF) {
872 switch (c) {
873 case 'n':
874 flags |= DUMP_NODE_EXTENTS;
875 break;
876 case 'l':
877 flags |= DUMP_LEAF_EXTENTS;
878 break;
879 }
880 }
881
882 if (argc != optind + 1) {
883 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
884 return;
885 }
886
887 if (flags == 0)
888 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
889 flags |= DUMP_EXTENT_TABLE;
890
891 if (check_fs_open(argv[0]))
892 return;
893
894 ino = string_to_inode(argv[optind]);
895 if (ino == 0)
896 return;
897
898 if (debugfs_read_inode(ino, &inode, argv[0]))
899 return;
900
901 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
902 fprintf(stderr, "%s: does not uses extent block maps\n",
903 argv[optind]);
904 return;
905 }
906
907 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
908 current_fs->blocksize) + 1;
909 if (logical_width < 5)
910 logical_width = 5;
911 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
912 if (physical_width < 5)
913 physical_width = 5;
914
915 out = open_pager();
916 dump_extents(out, "", ino, flags, logical_width, physical_width);
917 close_pager(out);
918 return;
919 }
920
921 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
922 blk64_t *blocknr,
923 e2_blkcnt_t blockcnt,
924 blk64_t ref_block EXT2FS_ATTR((unused)),
925 int ref_offset EXT2FS_ATTR((unused)),
926 void *private EXT2FS_ATTR((unused)))
927 {
928 printf("%llu ", *blocknr);
929 return 0;
930 }
931
932 void do_blocks(int argc, char *argv[])
933 {
934 ext2_ino_t inode;
935
936 if (check_fs_open(argv[0]))
937 return;
938
939 if (common_inode_args_process(argc, argv, &inode, 0)) {
940 return;
941 }
942
943 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
944 print_blocks_proc, NULL);
945 fputc('\n', stdout);
946 return;
947 }
948
949 void do_chroot(int argc, char *argv[])
950 {
951 ext2_ino_t inode;
952 int retval;
953
954 if (common_inode_args_process(argc, argv, &inode, 0))
955 return;
956
957 retval = ext2fs_check_directory(current_fs, inode);
958 if (retval) {
959 com_err(argv[1], retval, 0);
960 return;
961 }
962 root = inode;
963 }
964
965 void do_clri(int argc, char *argv[])
966 {
967 ext2_ino_t inode;
968 struct ext2_inode inode_buf;
969
970 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
971 return;
972
973 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
974 return;
975 memset(&inode_buf, 0, sizeof(inode_buf));
976 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
977 return;
978 }
979
980 void do_freei(int argc, char *argv[])
981 {
982 ext2_ino_t inode;
983
984 if (common_inode_args_process(argc, argv, &inode,
985 CHECK_FS_RW | CHECK_FS_BITMAPS))
986 return;
987
988 if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
989 com_err(argv[0], 0, "Warning: inode already clear");
990 ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
991 ext2fs_mark_ib_dirty(current_fs);
992 }
993
994 void do_seti(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 set");
1004 ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
1005 ext2fs_mark_ib_dirty(current_fs);
1006 }
1007
1008 void do_testi(int argc, char *argv[])
1009 {
1010 ext2_ino_t inode;
1011
1012 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1013 return;
1014
1015 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1016 printf("Inode %u is marked in use\n", inode);
1017 else
1018 printf("Inode %u is not in use\n", inode);
1019 }
1020
1021 void do_freeb(int argc, char *argv[])
1022 {
1023 blk64_t block;
1024 blk64_t count = 1;
1025
1026 if (common_block_args_process(argc, argv, &block, &count))
1027 return;
1028 if (check_fs_read_write(argv[0]))
1029 return;
1030 while (count-- > 0) {
1031 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1032 com_err(argv[0], 0, "Warning: block %llu already clear",
1033 block);
1034 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1035 block++;
1036 }
1037 ext2fs_mark_bb_dirty(current_fs);
1038 }
1039
1040 void do_setb(int argc, char *argv[])
1041 {
1042 blk64_t block;
1043 blk64_t count = 1;
1044
1045 if (common_block_args_process(argc, argv, &block, &count))
1046 return;
1047 if (check_fs_read_write(argv[0]))
1048 return;
1049 while (count-- > 0) {
1050 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1051 com_err(argv[0], 0, "Warning: block %llu already set",
1052 block);
1053 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1054 block++;
1055 }
1056 ext2fs_mark_bb_dirty(current_fs);
1057 }
1058
1059 void do_testb(int argc, char *argv[])
1060 {
1061 blk64_t block;
1062 blk64_t count = 1;
1063
1064 if (common_block_args_process(argc, argv, &block, &count))
1065 return;
1066 while (count-- > 0) {
1067 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1068 printf("Block %llu marked in use\n", block);
1069 else
1070 printf("Block %llu not in use\n", block);
1071 block++;
1072 }
1073 }
1074
1075 static void modify_u8(char *com, const char *prompt,
1076 const char *format, __u8 *val)
1077 {
1078 char buf[200];
1079 unsigned long v;
1080 char *tmp;
1081
1082 sprintf(buf, format, *val);
1083 printf("%30s [%s] ", prompt, buf);
1084 if (!fgets(buf, sizeof(buf), stdin))
1085 return;
1086 if (buf[strlen (buf) - 1] == '\n')
1087 buf[strlen (buf) - 1] = '\0';
1088 if (!buf[0])
1089 return;
1090 v = strtoul(buf, &tmp, 0);
1091 if (*tmp)
1092 com_err(com, 0, "Bad value - %s", buf);
1093 else
1094 *val = v;
1095 }
1096
1097 static void modify_u16(char *com, const char *prompt,
1098 const char *format, __u16 *val)
1099 {
1100 char buf[200];
1101 unsigned long v;
1102 char *tmp;
1103
1104 sprintf(buf, format, *val);
1105 printf("%30s [%s] ", prompt, buf);
1106 if (!fgets(buf, sizeof(buf), stdin))
1107 return;
1108 if (buf[strlen (buf) - 1] == '\n')
1109 buf[strlen (buf) - 1] = '\0';
1110 if (!buf[0])
1111 return;
1112 v = strtoul(buf, &tmp, 0);
1113 if (*tmp)
1114 com_err(com, 0, "Bad value - %s", buf);
1115 else
1116 *val = v;
1117 }
1118
1119 static void modify_u32(char *com, const char *prompt,
1120 const char *format, __u32 *val)
1121 {
1122 char buf[200];
1123 unsigned long v;
1124 char *tmp;
1125
1126 sprintf(buf, format, *val);
1127 printf("%30s [%s] ", prompt, buf);
1128 if (!fgets(buf, sizeof(buf), stdin))
1129 return;
1130 if (buf[strlen (buf) - 1] == '\n')
1131 buf[strlen (buf) - 1] = '\0';
1132 if (!buf[0])
1133 return;
1134 v = strtoul(buf, &tmp, 0);
1135 if (*tmp)
1136 com_err(com, 0, "Bad value - %s", buf);
1137 else
1138 *val = v;
1139 }
1140
1141
1142 void do_modify_inode(int argc, char *argv[])
1143 {
1144 struct ext2_inode inode;
1145 ext2_ino_t inode_num;
1146 int i;
1147 unsigned char *frag, *fsize;
1148 char buf[80];
1149 int os;
1150 const char *hex_format = "0x%x";
1151 const char *octal_format = "0%o";
1152 const char *decimal_format = "%d";
1153 const char *unsignedlong_format = "%lu";
1154
1155 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1156 return;
1157
1158 os = current_fs->super->s_creator_os;
1159
1160 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1161 return;
1162
1163 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1164 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1165 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1166 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1167 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1168 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1169 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1170 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1171 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1172 if (os == EXT2_OS_LINUX)
1173 modify_u16(argv[0], "Block count high", unsignedlong_format,
1174 &inode.osd2.linux2.l_i_blocks_hi);
1175 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1176 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1177 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1178 #if 0
1179 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1180 #endif
1181 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1182 if (LINUX_S_ISDIR(inode.i_mode))
1183 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1184 else
1185 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1186
1187 if (os == EXT2_OS_HURD)
1188 modify_u32(argv[0], "Translator Block",
1189 decimal_format, &inode.osd1.hurd1.h_i_translator);
1190
1191 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1192 switch (os) {
1193 case EXT2_OS_HURD:
1194 frag = &inode.osd2.hurd2.h_i_frag;
1195 fsize = &inode.osd2.hurd2.h_i_fsize;
1196 break;
1197 default:
1198 frag = fsize = 0;
1199 }
1200 if (frag)
1201 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1202 if (fsize)
1203 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1204
1205 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1206 sprintf(buf, "Direct Block #%d", i);
1207 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1208 }
1209 modify_u32(argv[0], "Indirect Block", decimal_format,
1210 &inode.i_block[EXT2_IND_BLOCK]);
1211 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1212 &inode.i_block[EXT2_DIND_BLOCK]);
1213 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1214 &inode.i_block[EXT2_TIND_BLOCK]);
1215 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1216 return;
1217 }
1218
1219 void do_change_working_dir(int argc, char *argv[])
1220 {
1221 ext2_ino_t inode;
1222 int retval;
1223
1224 if (common_inode_args_process(argc, argv, &inode, 0))
1225 return;
1226
1227 retval = ext2fs_check_directory(current_fs, inode);
1228 if (retval) {
1229 com_err(argv[1], retval, 0);
1230 return;
1231 }
1232 cwd = inode;
1233 return;
1234 }
1235
1236 void do_print_working_directory(int argc, char *argv[])
1237 {
1238 int retval;
1239 char *pathname = NULL;
1240
1241 if (common_args_process(argc, argv, 1, 1,
1242 "print_working_directory", "", 0))
1243 return;
1244
1245 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1246 if (retval) {
1247 com_err(argv[0], retval,
1248 "while trying to get pathname of cwd");
1249 }
1250 printf("[pwd] INODE: %6u PATH: %s\n",
1251 cwd, pathname ? pathname : "NULL");
1252 if (pathname) {
1253 free(pathname);
1254 pathname = NULL;
1255 }
1256 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1257 if (retval) {
1258 com_err(argv[0], retval,
1259 "while trying to get pathname of root");
1260 }
1261 printf("[root] INODE: %6u PATH: %s\n",
1262 root, pathname ? pathname : "NULL");
1263 if (pathname) {
1264 free(pathname);
1265 pathname = NULL;
1266 }
1267 return;
1268 }
1269
1270 /*
1271 * Given a mode, return the ext2 file type
1272 */
1273 static int ext2_file_type(unsigned int mode)
1274 {
1275 if (LINUX_S_ISREG(mode))
1276 return EXT2_FT_REG_FILE;
1277
1278 if (LINUX_S_ISDIR(mode))
1279 return EXT2_FT_DIR;
1280
1281 if (LINUX_S_ISCHR(mode))
1282 return EXT2_FT_CHRDEV;
1283
1284 if (LINUX_S_ISBLK(mode))
1285 return EXT2_FT_BLKDEV;
1286
1287 if (LINUX_S_ISLNK(mode))
1288 return EXT2_FT_SYMLINK;
1289
1290 if (LINUX_S_ISFIFO(mode))
1291 return EXT2_FT_FIFO;
1292
1293 if (LINUX_S_ISSOCK(mode))
1294 return EXT2_FT_SOCK;
1295
1296 return 0;
1297 }
1298
1299 static void make_link(char *sourcename, char *destname)
1300 {
1301 ext2_ino_t ino;
1302 struct ext2_inode inode;
1303 int retval;
1304 ext2_ino_t dir;
1305 char *dest, *cp, *base_name;
1306
1307 /*
1308 * Get the source inode
1309 */
1310 ino = string_to_inode(sourcename);
1311 if (!ino)
1312 return;
1313 base_name = strrchr(sourcename, '/');
1314 if (base_name)
1315 base_name++;
1316 else
1317 base_name = sourcename;
1318 /*
1319 * Figure out the destination. First see if it exists and is
1320 * a directory.
1321 */
1322 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1323 dest = base_name;
1324 else {
1325 /*
1326 * OK, it doesn't exist. See if it is
1327 * '<dir>/basename' or 'basename'
1328 */
1329 cp = strrchr(destname, '/');
1330 if (cp) {
1331 *cp = 0;
1332 dir = string_to_inode(destname);
1333 if (!dir)
1334 return;
1335 dest = cp+1;
1336 } else {
1337 dir = cwd;
1338 dest = destname;
1339 }
1340 }
1341
1342 if (debugfs_read_inode(ino, &inode, sourcename))
1343 return;
1344
1345 retval = ext2fs_link(current_fs, dir, dest, ino,
1346 ext2_file_type(inode.i_mode));
1347 if (retval)
1348 com_err("make_link", retval, 0);
1349 return;
1350 }
1351
1352
1353 void do_link(int argc, char *argv[])
1354 {
1355 if (common_args_process(argc, argv, 3, 3, "link",
1356 "<source file> <dest_name>", CHECK_FS_RW))
1357 return;
1358
1359 make_link(argv[1], argv[2]);
1360 }
1361
1362 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1363 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1364 blk64_t ref_block EXT2FS_ATTR((unused)),
1365 int ref_offset EXT2FS_ATTR((unused)),
1366 void *private EXT2FS_ATTR((unused)))
1367 {
1368 blk64_t block;
1369
1370 block = *blocknr;
1371 ext2fs_block_alloc_stats2(fs, block, +1);
1372 return 0;
1373 }
1374
1375 void do_undel(int argc, char *argv[])
1376 {
1377 ext2_ino_t ino;
1378 struct ext2_inode inode;
1379
1380 if (common_args_process(argc, argv, 2, 3, "undelete",
1381 "<inode_num> [dest_name]",
1382 CHECK_FS_RW | CHECK_FS_BITMAPS))
1383 return;
1384
1385 ino = string_to_inode(argv[1]);
1386 if (!ino)
1387 return;
1388
1389 if (debugfs_read_inode(ino, &inode, argv[1]))
1390 return;
1391
1392 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1393 com_err(argv[1], 0, "Inode is not marked as deleted");
1394 return;
1395 }
1396
1397 /*
1398 * XXX this function doesn't handle changing the links count on the
1399 * parent directory when undeleting a directory.
1400 */
1401 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1402 inode.i_dtime = 0;
1403
1404 if (debugfs_write_inode(ino, &inode, argv[0]))
1405 return;
1406
1407 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1408 mark_blocks_proc, NULL);
1409
1410 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1411
1412 if (argc > 2)
1413 make_link(argv[1], argv[2]);
1414 }
1415
1416 static void unlink_file_by_name(char *filename)
1417 {
1418 int retval;
1419 ext2_ino_t dir;
1420 char *base_name;
1421
1422 base_name = strrchr(filename, '/');
1423 if (base_name) {
1424 *base_name++ = '\0';
1425 dir = string_to_inode(filename);
1426 if (!dir)
1427 return;
1428 } else {
1429 dir = cwd;
1430 base_name = filename;
1431 }
1432 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1433 if (retval)
1434 com_err("unlink_file_by_name", retval, 0);
1435 return;
1436 }
1437
1438 void do_unlink(int argc, char *argv[])
1439 {
1440 if (common_args_process(argc, argv, 2, 2, "link",
1441 "<pathname>", CHECK_FS_RW))
1442 return;
1443
1444 unlink_file_by_name(argv[1]);
1445 }
1446
1447 void do_find_free_block(int argc, char *argv[])
1448 {
1449 blk64_t free_blk, goal, first_free = 0;
1450 int count;
1451 errcode_t retval;
1452 char *tmp;
1453
1454 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1455 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1456 return;
1457 }
1458 if (check_fs_open(argv[0]))
1459 return;
1460
1461 if (argc > 1) {
1462 count = strtol(argv[1],&tmp,0);
1463 if (*tmp) {
1464 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1465 return;
1466 }
1467 } else
1468 count = 1;
1469
1470 if (argc > 2) {
1471 goal = strtol(argv[2], &tmp, 0);
1472 if (*tmp) {
1473 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1474 return;
1475 }
1476 }
1477 else
1478 goal = current_fs->super->s_first_data_block;
1479
1480 printf("Free blocks found: ");
1481 free_blk = goal - 1;
1482 while (count-- > 0) {
1483 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1484 &free_blk);
1485 if (first_free) {
1486 if (first_free == free_blk)
1487 break;
1488 } else
1489 first_free = free_blk;
1490 if (retval) {
1491 com_err("ext2fs_new_block", retval, 0);
1492 return;
1493 } else
1494 printf("%llu ", free_blk);
1495 }
1496 printf("\n");
1497 }
1498
1499 void do_find_free_inode(int argc, char *argv[])
1500 {
1501 ext2_ino_t free_inode, dir;
1502 int mode;
1503 int retval;
1504 char *tmp;
1505
1506 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1507 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1508 return;
1509 }
1510 if (check_fs_open(argv[0]))
1511 return;
1512
1513 if (argc > 1) {
1514 dir = strtol(argv[1], &tmp, 0);
1515 if (*tmp) {
1516 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1517 return;
1518 }
1519 }
1520 else
1521 dir = root;
1522 if (argc > 2) {
1523 mode = strtol(argv[2], &tmp, 0);
1524 if (*tmp) {
1525 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1526 return;
1527 }
1528 } else
1529 mode = 010755;
1530
1531 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1532 if (retval)
1533 com_err("ext2fs_new_inode", retval, 0);
1534 else
1535 printf("Free inode found: %u\n", free_inode);
1536 }
1537
1538 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1539 {
1540 ext2_file_t e2_file;
1541 errcode_t retval;
1542 int got;
1543 unsigned int written;
1544 char buf[8192];
1545 char *ptr;
1546
1547 retval = ext2fs_file_open(current_fs, newfile,
1548 EXT2_FILE_WRITE, &e2_file);
1549 if (retval)
1550 return retval;
1551
1552 while (1) {
1553 got = read(fd, buf, sizeof(buf));
1554 if (got == 0)
1555 break;
1556 if (got < 0) {
1557 retval = errno;
1558 goto fail;
1559 }
1560 ptr = buf;
1561 while (got > 0) {
1562 retval = ext2fs_file_write(e2_file, ptr,
1563 got, &written);
1564 if (retval)
1565 goto fail;
1566
1567 got -= written;
1568 ptr += written;
1569 }
1570 }
1571 retval = ext2fs_file_close(e2_file);
1572 return retval;
1573
1574 fail:
1575 (void) ext2fs_file_close(e2_file);
1576 return retval;
1577 }
1578
1579
1580 void do_write(int argc, char *argv[])
1581 {
1582 int fd;
1583 struct stat statbuf;
1584 ext2_ino_t newfile;
1585 errcode_t retval;
1586 struct ext2_inode inode;
1587
1588 if (common_args_process(argc, argv, 3, 3, "write",
1589 "<native file> <new file>", CHECK_FS_RW))
1590 return;
1591
1592 fd = open(argv[1], O_RDONLY);
1593 if (fd < 0) {
1594 com_err(argv[1], errno, 0);
1595 return;
1596 }
1597 if (fstat(fd, &statbuf) < 0) {
1598 com_err(argv[1], errno, 0);
1599 close(fd);
1600 return;
1601 }
1602
1603 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1604 if (retval == 0) {
1605 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1606 close(fd);
1607 return;
1608 }
1609
1610 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1611 if (retval) {
1612 com_err(argv[0], retval, 0);
1613 close(fd);
1614 return;
1615 }
1616 printf("Allocated inode: %u\n", newfile);
1617 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1618 EXT2_FT_REG_FILE);
1619 if (retval == EXT2_ET_DIR_NO_SPACE) {
1620 retval = ext2fs_expand_dir(current_fs, cwd);
1621 if (retval) {
1622 com_err(argv[0], retval, "while expanding directory");
1623 close(fd);
1624 return;
1625 }
1626 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1627 EXT2_FT_REG_FILE);
1628 }
1629 if (retval) {
1630 com_err(argv[2], retval, 0);
1631 close(fd);
1632 return;
1633 }
1634 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1635 com_err(argv[0], 0, "Warning: inode already set");
1636 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1637 memset(&inode, 0, sizeof(inode));
1638 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1639 inode.i_atime = inode.i_ctime = inode.i_mtime =
1640 current_fs->now ? current_fs->now : time(0);
1641 inode.i_links_count = 1;
1642 inode.i_size = statbuf.st_size;
1643 if (current_fs->super->s_feature_incompat &
1644 EXT3_FEATURE_INCOMPAT_EXTENTS)
1645 inode.i_flags |= EXT4_EXTENTS_FL;
1646 if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1647 close(fd);
1648 return;
1649 }
1650 if (LINUX_S_ISREG(inode.i_mode)) {
1651 retval = copy_file(fd, newfile);
1652 if (retval)
1653 com_err("copy_file", retval, 0);
1654 }
1655 close(fd);
1656 }
1657
1658 void do_mknod(int argc, char *argv[])
1659 {
1660 unsigned long mode, major, minor;
1661 ext2_ino_t newfile;
1662 errcode_t retval;
1663 struct ext2_inode inode;
1664 int filetype, nr;
1665
1666 if (check_fs_open(argv[0]))
1667 return;
1668 if (argc < 3 || argv[2][1]) {
1669 usage:
1670 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1671 return;
1672 }
1673 mode = minor = major = 0;
1674 switch (argv[2][0]) {
1675 case 'p':
1676 mode = LINUX_S_IFIFO;
1677 filetype = EXT2_FT_FIFO;
1678 nr = 3;
1679 break;
1680 case 'c':
1681 mode = LINUX_S_IFCHR;
1682 filetype = EXT2_FT_CHRDEV;
1683 nr = 5;
1684 break;
1685 case 'b':
1686 mode = LINUX_S_IFBLK;
1687 filetype = EXT2_FT_BLKDEV;
1688 nr = 5;
1689 break;
1690 default:
1691 filetype = 0;
1692 nr = 0;
1693 }
1694 if (nr == 5) {
1695 major = strtoul(argv[3], argv+3, 0);
1696 minor = strtoul(argv[4], argv+4, 0);
1697 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1698 nr = 0;
1699 }
1700 if (argc != nr)
1701 goto usage;
1702 if (check_fs_read_write(argv[0]))
1703 return;
1704 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1705 if (retval) {
1706 com_err(argv[0], retval, 0);
1707 return;
1708 }
1709 printf("Allocated inode: %u\n", newfile);
1710 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1711 if (retval == EXT2_ET_DIR_NO_SPACE) {
1712 retval = ext2fs_expand_dir(current_fs, cwd);
1713 if (retval) {
1714 com_err(argv[0], retval, "while expanding directory");
1715 return;
1716 }
1717 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1718 filetype);
1719 }
1720 if (retval) {
1721 com_err(argv[1], retval, 0);
1722 return;
1723 }
1724 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1725 com_err(argv[0], 0, "Warning: inode already set");
1726 ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1727 ext2fs_mark_ib_dirty(current_fs);
1728 memset(&inode, 0, sizeof(inode));
1729 inode.i_mode = mode;
1730 inode.i_atime = inode.i_ctime = inode.i_mtime =
1731 current_fs->now ? current_fs->now : time(0);
1732 if ((major < 256) && (minor < 256)) {
1733 inode.i_block[0] = major*256+minor;
1734 inode.i_block[1] = 0;
1735 } else {
1736 inode.i_block[0] = 0;
1737 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1738 }
1739 inode.i_links_count = 1;
1740 if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1741 return;
1742 }
1743
1744 void do_mkdir(int argc, char *argv[])
1745 {
1746 char *cp;
1747 ext2_ino_t parent;
1748 char *name;
1749 errcode_t retval;
1750
1751 if (common_args_process(argc, argv, 2, 2, "mkdir",
1752 "<filename>", CHECK_FS_RW))
1753 return;
1754
1755 cp = strrchr(argv[1], '/');
1756 if (cp) {
1757 *cp = 0;
1758 parent = string_to_inode(argv[1]);
1759 if (!parent) {
1760 com_err(argv[1], ENOENT, 0);
1761 return;
1762 }
1763 name = cp+1;
1764 } else {
1765 parent = cwd;
1766 name = argv[1];
1767 }
1768
1769 try_again:
1770 retval = ext2fs_mkdir(current_fs, parent, 0, name);
1771 if (retval == EXT2_ET_DIR_NO_SPACE) {
1772 retval = ext2fs_expand_dir(current_fs, parent);
1773 if (retval) {
1774 com_err(argv[0], retval, "while expanding directory");
1775 return;
1776 }
1777 goto try_again;
1778 }
1779 if (retval) {
1780 com_err("ext2fs_mkdir", retval, 0);
1781 return;
1782 }
1783
1784 }
1785
1786 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1787 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1788 blk64_t ref_block EXT2FS_ATTR((unused)),
1789 int ref_offset EXT2FS_ATTR((unused)),
1790 void *private EXT2FS_ATTR((unused)))
1791 {
1792 blk64_t block;
1793
1794 block = *blocknr;
1795 ext2fs_block_alloc_stats2(fs, block, -1);
1796 return 0;
1797 }
1798
1799 static void kill_file_by_inode(ext2_ino_t inode)
1800 {
1801 struct ext2_inode inode_buf;
1802
1803 if (debugfs_read_inode(inode, &inode_buf, 0))
1804 return;
1805 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1806 if (debugfs_write_inode(inode, &inode_buf, 0))
1807 return;
1808 if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1809 return;
1810
1811 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1812 release_blocks_proc, NULL);
1813 printf("\n");
1814 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1815 LINUX_S_ISDIR(inode_buf.i_mode));
1816 }
1817
1818
1819 void do_kill_file(int argc, char *argv[])
1820 {
1821 ext2_ino_t inode_num;
1822
1823 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1824 return;
1825
1826 kill_file_by_inode(inode_num);
1827 }
1828
1829 void do_rm(int argc, char *argv[])
1830 {
1831 int retval;
1832 ext2_ino_t inode_num;
1833 struct ext2_inode inode;
1834
1835 if (common_args_process(argc, argv, 2, 2, "rm",
1836 "<filename>", CHECK_FS_RW))
1837 return;
1838
1839 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1840 if (retval) {
1841 com_err(argv[0], retval, "while trying to resolve filename");
1842 return;
1843 }
1844
1845 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1846 return;
1847
1848 if (LINUX_S_ISDIR(inode.i_mode)) {
1849 com_err(argv[0], 0, "file is a directory");
1850 return;
1851 }
1852
1853 --inode.i_links_count;
1854 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1855 return;
1856
1857 unlink_file_by_name(argv[1]);
1858 if (inode.i_links_count == 0)
1859 kill_file_by_inode(inode_num);
1860 }
1861
1862 struct rd_struct {
1863 ext2_ino_t parent;
1864 int empty;
1865 };
1866
1867 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1868 int entry EXT2FS_ATTR((unused)),
1869 struct ext2_dir_entry *dirent,
1870 int offset EXT2FS_ATTR((unused)),
1871 int blocksize EXT2FS_ATTR((unused)),
1872 char *buf EXT2FS_ATTR((unused)),
1873 void *private)
1874 {
1875 struct rd_struct *rds = (struct rd_struct *) private;
1876
1877 if (dirent->inode == 0)
1878 return 0;
1879 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1880 return 0;
1881 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1882 (dirent->name[1] == '.')) {
1883 rds->parent = dirent->inode;
1884 return 0;
1885 }
1886 rds->empty = 0;
1887 return 0;
1888 }
1889
1890 void do_rmdir(int argc, char *argv[])
1891 {
1892 int retval;
1893 ext2_ino_t inode_num;
1894 struct ext2_inode inode;
1895 struct rd_struct rds;
1896
1897 if (common_args_process(argc, argv, 2, 2, "rmdir",
1898 "<filename>", CHECK_FS_RW))
1899 return;
1900
1901 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1902 if (retval) {
1903 com_err(argv[0], retval, "while trying to resolve filename");
1904 return;
1905 }
1906
1907 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1908 return;
1909
1910 if (!LINUX_S_ISDIR(inode.i_mode)) {
1911 com_err(argv[0], 0, "file is not a directory");
1912 return;
1913 }
1914
1915 rds.parent = 0;
1916 rds.empty = 1;
1917
1918 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1919 0, rmdir_proc, &rds);
1920 if (retval) {
1921 com_err(argv[0], retval, "while iterating over directory");
1922 return;
1923 }
1924 if (rds.empty == 0) {
1925 com_err(argv[0], 0, "directory not empty");
1926 return;
1927 }
1928
1929 inode.i_links_count = 0;
1930 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1931 return;
1932
1933 unlink_file_by_name(argv[1]);
1934 kill_file_by_inode(inode_num);
1935
1936 if (rds.parent) {
1937 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1938 return;
1939 if (inode.i_links_count > 1)
1940 inode.i_links_count--;
1941 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1942 return;
1943 }
1944 }
1945
1946 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1947 char *argv[] EXT2FS_ATTR((unused)))
1948 {
1949 FILE *out = stdout;
1950
1951 if (current_fs)
1952 fprintf(out, "Open mode: read-%s\n",
1953 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1954 fprintf(out, "Filesystem in use: %s\n",
1955 current_fs ? current_fs->device_name : "--none--");
1956 }
1957
1958 void do_expand_dir(int argc, char *argv[])
1959 {
1960 ext2_ino_t inode;
1961 int retval;
1962
1963 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1964 return;
1965
1966 retval = ext2fs_expand_dir(current_fs, inode);
1967 if (retval)
1968 com_err("ext2fs_expand_dir", retval, 0);
1969 return;
1970 }
1971
1972 void do_features(int argc, char *argv[])
1973 {
1974 int i;
1975
1976 if (check_fs_open(argv[0]))
1977 return;
1978
1979 if ((argc != 1) && check_fs_read_write(argv[0]))
1980 return;
1981 for (i=1; i < argc; i++) {
1982 if (e2p_edit_feature(argv[i],
1983 &current_fs->super->s_feature_compat, 0))
1984 com_err(argv[0], 0, "Unknown feature: %s\n",
1985 argv[i]);
1986 else
1987 ext2fs_mark_super_dirty(current_fs);
1988 }
1989 print_features(current_fs->super, stdout);
1990 }
1991
1992 void do_bmap(int argc, char *argv[])
1993 {
1994 ext2_ino_t ino;
1995 blk64_t blk, pblk;
1996 int err;
1997 errcode_t errcode;
1998
1999 if (common_args_process(argc, argv, 3, 3, argv[0],
2000 "<file> logical_blk", 0))
2001 return;
2002
2003 ino = string_to_inode(argv[1]);
2004 if (!ino)
2005 return;
2006 blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
2007
2008 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
2009 if (errcode) {
2010 com_err("argv[0]", errcode,
2011 "while mapping logical block %llu\n", blk);
2012 return;
2013 }
2014 printf("%llu\n", pblk);
2015 }
2016
2017 void do_imap(int argc, char *argv[])
2018 {
2019 ext2_ino_t ino;
2020 unsigned long group, block, block_nr, offset;
2021
2022 if (common_args_process(argc, argv, 2, 2, argv[0],
2023 "<file>", 0))
2024 return;
2025 ino = string_to_inode(argv[1]);
2026 if (!ino)
2027 return;
2028
2029 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2030 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2031 EXT2_INODE_SIZE(current_fs->super);
2032 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2033 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2034 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2035 group);
2036 return;
2037 }
2038 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2039 block;
2040 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2041
2042 printf("Inode %d is part of block group %lu\n"
2043 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2044 block_nr, offset);
2045
2046 }
2047
2048 void do_set_current_time(int argc, char *argv[])
2049 {
2050 time_t now;
2051
2052 if (common_args_process(argc, argv, 2, 2, argv[0],
2053 "<time>", 0))
2054 return;
2055
2056 now = string_to_time(argv[1]);
2057 if (now == ((time_t) -1)) {
2058 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2059 argv[1]);
2060 return;
2061
2062 } else {
2063 printf("Setting current time to %s\n", time_to_string(now));
2064 current_fs->now = now;
2065 }
2066 }
2067
2068 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2069 {
2070 int compat, bit, ret;
2071 unsigned int feature_mask;
2072
2073 if (name) {
2074 if (feature_type == E2P_FS_FEATURE)
2075 ret = e2p_string2feature(name, &compat, &feature_mask);
2076 else
2077 ret = e2p_jrnl_string2feature(name, &compat,
2078 &feature_mask);
2079 if (ret)
2080 return ret;
2081
2082 if (!(supp[compat] & feature_mask))
2083 return 1;
2084 } else {
2085 for (compat = 0; compat < 3; compat++) {
2086 for (bit = 0, feature_mask = 1; bit < 32;
2087 bit++, feature_mask <<= 1) {
2088 if (supp[compat] & feature_mask) {
2089 if (feature_type == E2P_FS_FEATURE)
2090 fprintf(stdout, " %s",
2091 e2p_feature2string(compat,
2092 feature_mask));
2093 else
2094 fprintf(stdout, " %s",
2095 e2p_jrnl_feature2string(compat,
2096 feature_mask));
2097 }
2098 }
2099 }
2100 fprintf(stdout, "\n");
2101 }
2102
2103 return 0;
2104 }
2105
2106 void do_supported_features(int argc, char *argv[])
2107 {
2108 int ret;
2109 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2110 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2111 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2112 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2113 JFS_KNOWN_INCOMPAT_FEATURES,
2114 JFS_KNOWN_ROCOMPAT_FEATURES };
2115
2116 if (argc > 1) {
2117 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2118 if (ret) {
2119 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2120 argv[1]);
2121 }
2122 if (ret)
2123 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2124 else
2125 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2126 } else {
2127 fprintf(stdout, "Supported features:");
2128 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2129 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2130 }
2131 }
2132
2133 void do_punch(int argc, char *argv[])
2134 {
2135 ext2_ino_t ino;
2136 blk64_t start, end;
2137 int err;
2138 errcode_t errcode;
2139
2140 if (common_args_process(argc, argv, 3, 4, argv[0],
2141 "<file> start_blk [end_blk]",
2142 CHECK_FS_RW | CHECK_FS_BITMAPS))
2143 return;
2144
2145 ino = string_to_inode(argv[1]);
2146 if (!ino)
2147 return;
2148 start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2149 if (argc == 4)
2150 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2151 else
2152 end = ~0;
2153
2154 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2155
2156 if (errcode) {
2157 com_err(argv[0], errcode,
2158 "while truncating inode %u from %llu to %llu\n", ino,
2159 (unsigned long long) start, (unsigned long long) end);
2160 return;
2161 }
2162 }
2163
2164 static int source_file(const char *cmd_file, int sci_idx)
2165 {
2166 FILE *f;
2167 char buf[256];
2168 char *cp;
2169 int exit_status = 0;
2170 int retval;
2171
2172 if (strcmp(cmd_file, "-") == 0)
2173 f = stdin;
2174 else {
2175 f = fopen(cmd_file, "r");
2176 if (!f) {
2177 perror(cmd_file);
2178 exit(1);
2179 }
2180 }
2181 fflush(stdout);
2182 fflush(stderr);
2183 setbuf(stdout, NULL);
2184 setbuf(stderr, NULL);
2185 while (!feof(f)) {
2186 if (fgets(buf, sizeof(buf), f) == NULL)
2187 break;
2188 cp = strchr(buf, '\n');
2189 if (cp)
2190 *cp = 0;
2191 cp = strchr(buf, '\r');
2192 if (cp)
2193 *cp = 0;
2194 printf("debugfs: %s\n", buf);
2195 retval = ss_execute_line(sci_idx, buf);
2196 if (retval) {
2197 ss_perror(sci_idx, retval, buf);
2198 exit_status++;
2199 }
2200 }
2201 if (f != stdin)
2202 fclose(f);
2203 return exit_status;
2204 }
2205
2206 int main(int argc, char **argv)
2207 {
2208 int retval;
2209 int sci_idx;
2210 const char *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
2211 int c;
2212 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2213 char *request = 0;
2214 int exit_status = 0;
2215 char *cmd_file = 0;
2216 blk64_t superblock = 0;
2217 blk64_t blocksize = 0;
2218 int catastrophic = 0;
2219 char *data_filename = 0;
2220
2221 if (debug_prog_name == 0)
2222 debug_prog_name = "debugfs";
2223
2224 add_error_table(&et_ext2_error_table);
2225 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2226 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2227
2228 while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:D")) != EOF) {
2229 switch (c) {
2230 case 'R':
2231 request = optarg;
2232 break;
2233 case 'f':
2234 cmd_file = optarg;
2235 break;
2236 case 'd':
2237 data_filename = optarg;
2238 break;
2239 case 'i':
2240 open_flags |= EXT2_FLAG_IMAGE_FILE;
2241 break;
2242 case 'w':
2243 open_flags |= EXT2_FLAG_RW;
2244 break;
2245 case 'D':
2246 open_flags |= EXT2_FLAG_DIRECT_IO;
2247 break;
2248 case 'b':
2249 blocksize = parse_ulong(optarg, argv[0],
2250 "block size", 0);
2251 break;
2252 case 's':
2253 superblock = parse_ulong(optarg, argv[0],
2254 "superblock number", 0);
2255 break;
2256 case 'c':
2257 catastrophic = 1;
2258 break;
2259 case 'V':
2260 /* Print version number and exit */
2261 fprintf(stderr, "\tUsing %s\n",
2262 error_message(EXT2_ET_BASE));
2263 exit(0);
2264 default:
2265 com_err(argv[0], 0, usage, debug_prog_name);
2266 return 1;
2267 }
2268 }
2269 if (optind < argc)
2270 open_filesystem(argv[optind], open_flags,
2271 superblock, blocksize, catastrophic,
2272 data_filename);
2273
2274 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2275 &debug_cmds, &retval);
2276 if (retval) {
2277 ss_perror(sci_idx, retval, "creating invocation");
2278 exit(1);
2279 }
2280 ss_get_readline(sci_idx);
2281
2282 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2283 if (retval) {
2284 ss_perror(sci_idx, retval, "adding standard requests");
2285 exit (1);
2286 }
2287 if (extra_cmds)
2288 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2289 if (retval) {
2290 ss_perror(sci_idx, retval, "adding extra requests");
2291 exit (1);
2292 }
2293 if (request) {
2294 retval = 0;
2295 retval = ss_execute_line(sci_idx, request);
2296 if (retval) {
2297 ss_perror(sci_idx, retval, request);
2298 exit_status++;
2299 }
2300 } else if (cmd_file) {
2301 exit_status = source_file(cmd_file, sci_idx);
2302 } else {
2303 ss_listen(sci_idx);
2304 }
2305
2306 ss_delete_invocation(sci_idx);
2307
2308 if (current_fs)
2309 close_filesystem();
2310
2311 remove_error_table(&et_ext2_error_table);
2312 return exit_status;
2313 }
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