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Merge branch 'maint' into next
[thirdparty/e2fsprogs.git] / debugfs / debugfs.c
1 /*
2 * debugfs.c --- a program which allows you to attach an ext2fs
3 * filesystem and play with it.
4 *
5 * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
6 * under the terms of the GNU Public License.
7 *
8 * Modifications by Robert Sanders <gt8134b@prism.gatech.edu>
9 */
10
11 #include <stdio.h>
12 #include <unistd.h>
13 #include <stdlib.h>
14 #include <ctype.h>
15 #include <string.h>
16 #include <time.h>
17 #ifdef HAVE_GETOPT_H
18 #include <getopt.h>
19 #else
20 extern int optind;
21 extern char *optarg;
22 #endif
23 #ifdef HAVE_ERRNO_H
24 #include <errno.h>
25 #endif
26 #include <fcntl.h>
27 #include <sys/types.h>
28 #include <sys/stat.h>
29
30 #include "et/com_err.h"
31 #include "ss/ss.h"
32 #include "debugfs.h"
33 #include "uuid/uuid.h"
34 #include "e2p/e2p.h"
35
36 #include <ext2fs/ext2_ext_attr.h>
37
38 #include "../version.h"
39 #include "jfs_user.h"
40
41 extern ss_request_table debug_cmds;
42 ss_request_table *extra_cmds;
43 const char *debug_prog_name;
44
45 ext2_filsys current_fs = NULL;
46 ext2_ino_t root, cwd;
47
48 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
49 blk64_t blocksize, int catastrophic,
50 char *data_filename)
51 {
52 int retval;
53 io_channel data_io = 0;
54
55 if (superblock != 0 && blocksize == 0) {
56 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
57 current_fs = NULL;
58 return;
59 }
60
61 if (data_filename) {
62 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
63 com_err(device, 0,
64 "The -d option is only valid when reading an e2image file");
65 current_fs = NULL;
66 return;
67 }
68 retval = unix_io_manager->open(data_filename, 0, &data_io);
69 if (retval) {
70 com_err(data_filename, 0, "while opening data source");
71 current_fs = NULL;
72 return;
73 }
74 }
75
76 if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
77 com_err(device, 0,
78 "opening read-only because of catastrophic mode");
79 open_flags &= ~EXT2_FLAG_RW;
80 }
81
82 retval = ext2fs_open(device, open_flags, superblock, blocksize,
83 unix_io_manager, &current_fs);
84 if (retval) {
85 com_err(device, retval, "while opening filesystem");
86 current_fs = NULL;
87 return;
88 }
89
90 if (catastrophic)
91 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
92 else {
93 retval = ext2fs_read_inode_bitmap(current_fs);
94 if (retval) {
95 com_err(device, retval, "while reading inode bitmap");
96 goto errout;
97 }
98 retval = ext2fs_read_block_bitmap(current_fs);
99 if (retval) {
100 com_err(device, retval, "while reading block bitmap");
101 goto errout;
102 }
103 }
104
105 if (data_io) {
106 retval = ext2fs_set_data_io(current_fs, data_io);
107 if (retval) {
108 com_err(device, retval,
109 "while setting data source");
110 goto errout;
111 }
112 }
113
114 root = cwd = EXT2_ROOT_INO;
115 return;
116
117 errout:
118 retval = ext2fs_close(current_fs);
119 if (retval)
120 com_err(device, retval, "while trying to close filesystem");
121 current_fs = NULL;
122 }
123
124 void do_open_filesys(int argc, char **argv)
125 {
126 int c, err;
127 int catastrophic = 0;
128 blk64_t superblock = 0;
129 blk64_t blocksize = 0;
130 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
131 char *data_filename = 0;
132
133 reset_getopt();
134 while ((c = getopt (argc, argv, "iwfecb:s:d:D")) != EOF) {
135 switch (c) {
136 case 'i':
137 open_flags |= EXT2_FLAG_IMAGE_FILE;
138 break;
139 case 'w':
140 open_flags |= EXT2_FLAG_RW;
141 break;
142 case 'f':
143 open_flags |= EXT2_FLAG_FORCE;
144 break;
145 case 'e':
146 open_flags |= EXT2_FLAG_EXCLUSIVE;
147 break;
148 case 'c':
149 catastrophic = 1;
150 break;
151 case 'd':
152 data_filename = optarg;
153 break;
154 case 'D':
155 open_flags |= EXT2_FLAG_DIRECT_IO;
156 break;
157 case 'b':
158 blocksize = parse_ulong(optarg, argv[0],
159 "block size", &err);
160 if (err)
161 return;
162 break;
163 case 's':
164 superblock = parse_ulong(optarg, argv[0],
165 "superblock number", &err);
166 if (err)
167 return;
168 break;
169 default:
170 goto print_usage;
171 }
172 }
173 if (optind != argc-1) {
174 goto print_usage;
175 }
176 if (check_fs_not_open(argv[0]))
177 return;
178 open_filesystem(argv[optind], open_flags,
179 superblock, blocksize, catastrophic,
180 data_filename);
181 return;
182
183 print_usage:
184 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
185 "[-c] [-w] <device>\n", argv[0]);
186 }
187
188 void do_lcd(int argc, char **argv)
189 {
190 if (argc != 2) {
191 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
192 return;
193 }
194
195 if (chdir(argv[1]) == -1) {
196 com_err(argv[0], errno,
197 "while trying to change native directory to %s",
198 argv[1]);
199 return;
200 }
201 }
202
203 static void close_filesystem(NOARGS)
204 {
205 int retval;
206
207 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
208 retval = ext2fs_write_inode_bitmap(current_fs);
209 if (retval)
210 com_err("ext2fs_write_inode_bitmap", retval, 0);
211 }
212 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
213 retval = ext2fs_write_block_bitmap(current_fs);
214 if (retval)
215 com_err("ext2fs_write_block_bitmap", retval, 0);
216 }
217 retval = ext2fs_close(current_fs);
218 if (retval)
219 com_err("ext2fs_close", retval, 0);
220 current_fs = NULL;
221 return;
222 }
223
224 void do_close_filesys(int argc, char **argv)
225 {
226 int c;
227
228 if (check_fs_open(argv[0]))
229 return;
230
231 reset_getopt();
232 while ((c = getopt (argc, argv, "a")) != EOF) {
233 switch (c) {
234 case 'a':
235 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
236 break;
237 default:
238 goto print_usage;
239 }
240 }
241
242 if (argc > optind) {
243 print_usage:
244 com_err(0, 0, "Usage: close_filesys [-a]");
245 return;
246 }
247
248 close_filesystem();
249 }
250
251 void do_init_filesys(int argc, char **argv)
252 {
253 struct ext2_super_block param;
254 errcode_t retval;
255 int err;
256
257 if (common_args_process(argc, argv, 3, 3, "initialize",
258 "<device> <blocksize>", CHECK_FS_NOTOPEN))
259 return;
260
261 memset(&param, 0, sizeof(struct ext2_super_block));
262 ext2fs_blocks_count_set(&param, parse_ulong(argv[2], argv[0],
263 "blocks count", &err));
264 if (err)
265 return;
266 retval = ext2fs_initialize(argv[1], 0, &param,
267 unix_io_manager, &current_fs);
268 if (retval) {
269 com_err(argv[1], retval, "while initializing filesystem");
270 current_fs = NULL;
271 return;
272 }
273 root = cwd = EXT2_ROOT_INO;
274 return;
275 }
276
277 static void print_features(struct ext2_super_block * s, FILE *f)
278 {
279 int i, j, printed=0;
280 __u32 *mask = &s->s_feature_compat, m;
281
282 fputs("Filesystem features:", f);
283 for (i=0; i <3; i++,mask++) {
284 for (j=0,m=1; j < 32; j++, m<<=1) {
285 if (*mask & m) {
286 fprintf(f, " %s", e2p_feature2string(i, m));
287 printed++;
288 }
289 }
290 }
291 if (printed == 0)
292 fputs("(none)", f);
293 fputs("\n", f);
294 }
295
296 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
297 const char *str, int *first, FILE *f)
298 {
299 if (ext2fs_bg_flags_test(fs, group, mask)) {
300 if (*first) {
301 fputs(" [", f);
302 *first = 0;
303 } else
304 fputs(", ", f);
305 fputs(str, f);
306 }
307 }
308
309 void do_show_super_stats(int argc, char *argv[])
310 {
311 dgrp_t i;
312 FILE *out;
313 int c, header_only = 0;
314 int numdirs = 0, first, gdt_csum;
315
316 reset_getopt();
317 while ((c = getopt (argc, argv, "h")) != EOF) {
318 switch (c) {
319 case 'h':
320 header_only++;
321 break;
322 default:
323 goto print_usage;
324 }
325 }
326 if (optind != argc) {
327 goto print_usage;
328 }
329 if (check_fs_open(argv[0]))
330 return;
331 out = open_pager();
332
333 list_super2(current_fs->super, out);
334 for (i=0; i < current_fs->group_desc_count; i++)
335 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
336 fprintf(out, "Directories: %d\n", numdirs);
337
338 if (header_only) {
339 close_pager(out);
340 return;
341 }
342
343 gdt_csum = EXT2_HAS_RO_COMPAT_FEATURE(current_fs->super,
344 EXT4_FEATURE_RO_COMPAT_GDT_CSUM);
345 for (i = 0; i < current_fs->group_desc_count; i++) {
346 fprintf(out, " Group %2d: block bitmap at %llu, "
347 "inode bitmap at %llu, "
348 "inode table at %llu\n"
349 " %u free %s, "
350 "%u free %s, "
351 "%u used %s%s",
352 i, ext2fs_block_bitmap_loc(current_fs, i),
353 ext2fs_inode_bitmap_loc(current_fs, i),
354 ext2fs_inode_table_loc(current_fs, i),
355 ext2fs_bg_free_blocks_count(current_fs, i),
356 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
357 "blocks" : "block",
358 ext2fs_bg_free_inodes_count(current_fs, i),
359 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
360 "inodes" : "inode",
361 ext2fs_bg_used_dirs_count(current_fs, i),
362 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
363 : "directory", gdt_csum ? ", " : "\n");
364 if (gdt_csum)
365 fprintf(out, "%u unused %s\n",
366 ext2fs_bg_itable_unused(current_fs, i),
367 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
368 "inodes" : "inode");
369 first = 1;
370 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
371 &first, out);
372 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
373 &first, out);
374 if (gdt_csum) {
375 fprintf(out, "%sChecksum 0x%04x",
376 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
377 first = 0;
378 }
379 if (!first)
380 fputs("]\n", out);
381 }
382 close_pager(out);
383 return;
384 print_usage:
385 fprintf(stderr, "%s: Usage: show_super [-h]\n", argv[0]);
386 }
387
388 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
389 char **argv EXT2FS_ATTR((unused)))
390 {
391 if (check_fs_open(argv[0]))
392 return;
393 if (check_fs_read_write(argv[0]))
394 return;
395
396 if (argv[1] && !strcmp(argv[1], "-clean"))
397 current_fs->super->s_state |= EXT2_VALID_FS;
398 else
399 current_fs->super->s_state &= ~EXT2_VALID_FS;
400 ext2fs_mark_super_dirty(current_fs);
401 }
402
403 struct list_blocks_struct {
404 FILE *f;
405 e2_blkcnt_t total;
406 blk64_t first_block, last_block;
407 e2_blkcnt_t first_bcnt, last_bcnt;
408 e2_blkcnt_t first;
409 };
410
411 static void finish_range(struct list_blocks_struct *lb)
412 {
413 if (lb->first_block == 0)
414 return;
415 if (lb->first)
416 lb->first = 0;
417 else
418 fprintf(lb->f, ", ");
419 if (lb->first_block == lb->last_block)
420 fprintf(lb->f, "(%lld):%llu",
421 (long long)lb->first_bcnt, lb->first_block);
422 else
423 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
424 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
425 lb->first_block, lb->last_block);
426 lb->first_block = 0;
427 }
428
429 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
430 blk64_t *blocknr, e2_blkcnt_t blockcnt,
431 blk64_t ref_block EXT2FS_ATTR((unused)),
432 int ref_offset EXT2FS_ATTR((unused)),
433 void *private)
434 {
435 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
436
437 lb->total++;
438 if (blockcnt >= 0) {
439 /*
440 * See if we can add on to the existing range (if it exists)
441 */
442 if (lb->first_block &&
443 (lb->last_block+1 == *blocknr) &&
444 (lb->last_bcnt+1 == blockcnt)) {
445 lb->last_block = *blocknr;
446 lb->last_bcnt = blockcnt;
447 return 0;
448 }
449 /*
450 * Start a new range.
451 */
452 finish_range(lb);
453 lb->first_block = lb->last_block = *blocknr;
454 lb->first_bcnt = lb->last_bcnt = blockcnt;
455 return 0;
456 }
457 /*
458 * Not a normal block. Always force a new range.
459 */
460 finish_range(lb);
461 if (lb->first)
462 lb->first = 0;
463 else
464 fprintf(lb->f, ", ");
465 if (blockcnt == -1)
466 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
467 else if (blockcnt == -2)
468 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
469 else if (blockcnt == -3)
470 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
471 return 0;
472 }
473
474 static void dump_xattr_string(FILE *out, const char *str, int len)
475 {
476 int printable = 0;
477 int i;
478
479 /* check: is string "printable enough?" */
480 for (i = 0; i < len; i++)
481 if (isprint(str[i]))
482 printable++;
483
484 if (printable <= len*7/8)
485 printable = 0;
486
487 for (i = 0; i < len; i++)
488 if (printable)
489 fprintf(out, isprint(str[i]) ? "%c" : "\\%03o",
490 (unsigned char)str[i]);
491 else
492 fprintf(out, "%02x ", (unsigned char)str[i]);
493 }
494
495 static void internal_dump_inode_extra(FILE *out,
496 const char *prefix EXT2FS_ATTR((unused)),
497 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
498 struct ext2_inode_large *inode)
499 {
500 struct ext2_ext_attr_entry *entry;
501 __u32 *magic;
502 char *start, *end;
503 unsigned int storage_size;
504
505 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
506 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
507 EXT2_GOOD_OLD_INODE_SIZE) {
508 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
509 inode->i_extra_isize);
510 return;
511 }
512 storage_size = EXT2_INODE_SIZE(current_fs->super) -
513 EXT2_GOOD_OLD_INODE_SIZE -
514 inode->i_extra_isize;
515 magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
516 inode->i_extra_isize);
517 if (*magic == EXT2_EXT_ATTR_MAGIC) {
518 fprintf(out, "Extended attributes stored in inode body: \n");
519 end = (char *) inode + EXT2_INODE_SIZE(current_fs->super);
520 start = (char *) magic + sizeof(__u32);
521 entry = (struct ext2_ext_attr_entry *) start;
522 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
523 struct ext2_ext_attr_entry *next =
524 EXT2_EXT_ATTR_NEXT(entry);
525 if (entry->e_value_size > storage_size ||
526 (char *) next >= end) {
527 fprintf(out, "invalid EA entry in inode\n");
528 return;
529 }
530 fprintf(out, " ");
531 dump_xattr_string(out, EXT2_EXT_ATTR_NAME(entry),
532 entry->e_name_len);
533 fprintf(out, " = \"");
534 dump_xattr_string(out, start + entry->e_value_offs,
535 entry->e_value_size);
536 fprintf(out, "\" (%u)\n", entry->e_value_size);
537 entry = next;
538 }
539 }
540 }
541
542 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
543 {
544 struct list_blocks_struct lb;
545
546 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
547 lb.total = 0;
548 lb.first_block = 0;
549 lb.f = f;
550 lb.first = 1;
551 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
552 list_blocks_proc, (void *)&lb);
553 finish_range(&lb);
554 if (lb.total)
555 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
556 fprintf(f,"\n");
557 }
558
559 static int int_log10(unsigned long long arg)
560 {
561 int l = 0;
562
563 arg = arg / 10;
564 while (arg) {
565 l++;
566 arg = arg / 10;
567 }
568 return l;
569 }
570
571 #define DUMP_LEAF_EXTENTS 0x01
572 #define DUMP_NODE_EXTENTS 0x02
573 #define DUMP_EXTENT_TABLE 0x04
574
575 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
576 int flags, int logical_width, int physical_width)
577 {
578 ext2_extent_handle_t handle;
579 struct ext2fs_extent extent;
580 struct ext2_extent_info info;
581 int op = EXT2_EXTENT_ROOT;
582 unsigned int printed = 0;
583 errcode_t errcode;
584
585 errcode = ext2fs_extent_open(current_fs, ino, &handle);
586 if (errcode)
587 return;
588
589 if (flags & DUMP_EXTENT_TABLE)
590 fprintf(f, "Level Entries %*s %*s Length Flags\n",
591 (logical_width*2)+3, "Logical",
592 (physical_width*2)+3, "Physical");
593 else
594 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
595
596 while (1) {
597 errcode = ext2fs_extent_get(handle, op, &extent);
598
599 if (errcode)
600 break;
601
602 op = EXT2_EXTENT_NEXT;
603
604 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
605 continue;
606
607 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
608 if ((flags & DUMP_LEAF_EXTENTS) == 0)
609 continue;
610 } else {
611 if ((flags & DUMP_NODE_EXTENTS) == 0)
612 continue;
613 }
614
615 errcode = ext2fs_extent_get_info(handle, &info);
616 if (errcode)
617 continue;
618
619 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
620 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
621 continue;
622
623 if (flags & DUMP_EXTENT_TABLE) {
624 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
625 "%*llu%*s %6u\n",
626 info.curr_level, info.max_depth,
627 info.curr_entry, info.num_entries,
628 logical_width,
629 extent.e_lblk,
630 logical_width,
631 extent.e_lblk + (extent.e_len - 1),
632 physical_width,
633 extent.e_pblk,
634 physical_width+3, "", extent.e_len);
635 continue;
636 }
637
638 fprintf(f, "%s(ETB%d):%lld",
639 printed ? ", " : "", info.curr_level,
640 extent.e_pblk);
641 printed = 1;
642 continue;
643 }
644
645 if (flags & DUMP_EXTENT_TABLE) {
646 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
647 "%*llu - %*llu %6u %s\n",
648 info.curr_level, info.max_depth,
649 info.curr_entry, info.num_entries,
650 logical_width,
651 extent.e_lblk,
652 logical_width,
653 extent.e_lblk + (extent.e_len - 1),
654 physical_width,
655 extent.e_pblk,
656 physical_width,
657 extent.e_pblk + (extent.e_len - 1),
658 extent.e_len,
659 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
660 "Uninit" : "");
661 continue;
662 }
663
664 if (extent.e_len == 0)
665 continue;
666 else if (extent.e_len == 1)
667 fprintf(f,
668 "%s(%lld%s):%lld",
669 printed ? ", " : "",
670 extent.e_lblk,
671 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
672 "[u]" : "",
673 extent.e_pblk);
674 else
675 fprintf(f,
676 "%s(%lld-%lld%s):%lld-%lld",
677 printed ? ", " : "",
678 extent.e_lblk,
679 extent.e_lblk + (extent.e_len - 1),
680 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
681 "[u]" : "",
682 extent.e_pblk,
683 extent.e_pblk + (extent.e_len - 1));
684 printed = 1;
685 }
686 if (printed)
687 fprintf(f, "\n");
688 }
689
690 void internal_dump_inode(FILE *out, const char *prefix,
691 ext2_ino_t inode_num, struct ext2_inode *inode,
692 int do_dump_blocks)
693 {
694 const char *i_type;
695 char frag, fsize;
696 int os = current_fs->super->s_creator_os;
697 struct ext2_inode_large *large_inode;
698 int is_large_inode = 0;
699
700 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
701 is_large_inode = 1;
702 large_inode = (struct ext2_inode_large *) inode;
703
704 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
705 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
706 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
707 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
708 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
709 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
710 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
711 else i_type = "bad type";
712 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
713 fprintf(out, "%sMode: %04o Flags: 0x%x\n",
714 prefix, inode->i_mode & 0777, inode->i_flags);
715 if (is_large_inode && large_inode->i_extra_isize >= 24) {
716 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
717 prefix, inode->i_generation, large_inode->i_version_hi,
718 inode->osd1.linux1.l_i_version);
719 } else {
720 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
721 inode->i_generation, inode->osd1.linux1.l_i_version);
722 }
723 fprintf(out, "%sUser: %5d Group: %5d Size: ",
724 prefix, inode_uid(*inode), inode_gid(*inode));
725 if (LINUX_S_ISREG(inode->i_mode)) {
726 unsigned long long i_size = (inode->i_size |
727 ((unsigned long long)inode->i_size_high << 32));
728
729 fprintf(out, "%llu\n", i_size);
730 } else
731 fprintf(out, "%d\n", inode->i_size);
732 if (os == EXT2_OS_HURD)
733 fprintf(out,
734 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
735 prefix,
736 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
737 inode->osd1.hurd1.h_i_translator);
738 else
739 fprintf(out, "%sFile ACL: %llu Directory ACL: %d\n",
740 prefix,
741 inode->i_file_acl | ((long long)
742 (inode->osd2.linux2.l_i_file_acl_high) << 32),
743 LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
744 if (os == EXT2_OS_LINUX)
745 fprintf(out, "%sLinks: %d Blockcount: %llu\n",
746 prefix, inode->i_links_count,
747 (((unsigned long long)
748 inode->osd2.linux2.l_i_blocks_hi << 32)) +
749 inode->i_blocks);
750 else
751 fprintf(out, "%sLinks: %d Blockcount: %u\n",
752 prefix, inode->i_links_count, inode->i_blocks);
753 switch (os) {
754 case EXT2_OS_HURD:
755 frag = inode->osd2.hurd2.h_i_frag;
756 fsize = inode->osd2.hurd2.h_i_fsize;
757 break;
758 default:
759 frag = fsize = 0;
760 }
761 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
762 prefix, inode->i_faddr, frag, fsize);
763 if (is_large_inode && large_inode->i_extra_isize >= 24) {
764 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
765 inode->i_ctime, large_inode->i_ctime_extra,
766 time_to_string(inode->i_ctime));
767 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
768 inode->i_atime, large_inode->i_atime_extra,
769 time_to_string(inode->i_atime));
770 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
771 inode->i_mtime, large_inode->i_mtime_extra,
772 time_to_string(inode->i_mtime));
773 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
774 large_inode->i_crtime, large_inode->i_crtime_extra,
775 time_to_string(large_inode->i_crtime));
776 } else {
777 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
778 time_to_string(inode->i_ctime));
779 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
780 time_to_string(inode->i_atime));
781 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
782 time_to_string(inode->i_mtime));
783 }
784 if (inode->i_dtime)
785 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
786 time_to_string(inode->i_dtime));
787 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
788 internal_dump_inode_extra(out, prefix, inode_num,
789 (struct ext2_inode_large *) inode);
790 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
791 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
792 (int) inode->i_size, (char *)inode->i_block);
793 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
794 int major, minor;
795 const char *devnote;
796
797 if (inode->i_block[0]) {
798 major = (inode->i_block[0] >> 8) & 255;
799 minor = inode->i_block[0] & 255;
800 devnote = "";
801 } else {
802 major = (inode->i_block[1] & 0xfff00) >> 8;
803 minor = ((inode->i_block[1] & 0xff) |
804 ((inode->i_block[1] >> 12) & 0xfff00));
805 devnote = "(New-style) ";
806 }
807 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
808 devnote, major, minor, major, minor);
809 } else if (do_dump_blocks) {
810 if (inode->i_flags & EXT4_EXTENTS_FL)
811 dump_extents(out, prefix, inode_num,
812 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
813 else
814 dump_blocks(out, prefix, inode_num);
815 }
816 }
817
818 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
819 {
820 FILE *out;
821
822 out = open_pager();
823 internal_dump_inode(out, "", inode_num, inode, 1);
824 close_pager(out);
825 }
826
827 void do_stat(int argc, char *argv[])
828 {
829 ext2_ino_t inode;
830 struct ext2_inode * inode_buf;
831
832 if (check_fs_open(argv[0]))
833 return;
834
835 inode_buf = (struct ext2_inode *)
836 malloc(EXT2_INODE_SIZE(current_fs->super));
837 if (!inode_buf) {
838 fprintf(stderr, "do_stat: can't allocate buffer\n");
839 return;
840 }
841
842 if (common_inode_args_process(argc, argv, &inode, 0)) {
843 free(inode_buf);
844 return;
845 }
846
847 if (debugfs_read_inode_full(inode, inode_buf, argv[0],
848 EXT2_INODE_SIZE(current_fs->super))) {
849 free(inode_buf);
850 return;
851 }
852
853 dump_inode(inode, inode_buf);
854 free(inode_buf);
855 return;
856 }
857
858 void do_dump_extents(int argc, char **argv)
859 {
860 struct ext2_inode inode;
861 ext2_ino_t ino;
862 FILE *out;
863 int c, flags = 0;
864 int logical_width;
865 int physical_width;
866
867 reset_getopt();
868 while ((c = getopt(argc, argv, "nl")) != EOF) {
869 switch (c) {
870 case 'n':
871 flags |= DUMP_NODE_EXTENTS;
872 break;
873 case 'l':
874 flags |= DUMP_LEAF_EXTENTS;
875 break;
876 }
877 }
878
879 if (argc != optind + 1) {
880 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
881 return;
882 }
883
884 if (flags == 0)
885 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
886 flags |= DUMP_EXTENT_TABLE;
887
888 if (check_fs_open(argv[0]))
889 return;
890
891 ino = string_to_inode(argv[optind]);
892 if (ino == 0)
893 return;
894
895 if (debugfs_read_inode(ino, &inode, argv[0]))
896 return;
897
898 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
899 fprintf(stderr, "%s: does not uses extent block maps\n",
900 argv[optind]);
901 return;
902 }
903
904 logical_width = int_log10(((inode.i_size |
905 (__u64) inode.i_size_high << 32) +
906 current_fs->blocksize - 1) /
907 current_fs->blocksize) + 1;
908 if (logical_width < 5)
909 logical_width = 5;
910 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
911 if (physical_width < 5)
912 physical_width = 5;
913
914 out = open_pager();
915 dump_extents(out, "", ino, flags, logical_width, physical_width);
916 close_pager(out);
917 return;
918 }
919
920 void do_chroot(int argc, char *argv[])
921 {
922 ext2_ino_t inode;
923 int retval;
924
925 if (common_inode_args_process(argc, argv, &inode, 0))
926 return;
927
928 retval = ext2fs_check_directory(current_fs, inode);
929 if (retval) {
930 com_err(argv[1], retval, 0);
931 return;
932 }
933 root = inode;
934 }
935
936 void do_clri(int argc, char *argv[])
937 {
938 ext2_ino_t inode;
939 struct ext2_inode inode_buf;
940
941 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
942 return;
943
944 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
945 return;
946 memset(&inode_buf, 0, sizeof(inode_buf));
947 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
948 return;
949 }
950
951 void do_freei(int argc, char *argv[])
952 {
953 ext2_ino_t inode;
954
955 if (common_inode_args_process(argc, argv, &inode,
956 CHECK_FS_RW | CHECK_FS_BITMAPS))
957 return;
958
959 if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
960 com_err(argv[0], 0, "Warning: inode already clear");
961 ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
962 ext2fs_mark_ib_dirty(current_fs);
963 }
964
965 void do_seti(int argc, char *argv[])
966 {
967 ext2_ino_t inode;
968
969 if (common_inode_args_process(argc, argv, &inode,
970 CHECK_FS_RW | CHECK_FS_BITMAPS))
971 return;
972
973 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
974 com_err(argv[0], 0, "Warning: inode already set");
975 ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
976 ext2fs_mark_ib_dirty(current_fs);
977 }
978
979 void do_testi(int argc, char *argv[])
980 {
981 ext2_ino_t inode;
982
983 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
984 return;
985
986 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
987 printf("Inode %u is marked in use\n", inode);
988 else
989 printf("Inode %u is not in use\n", inode);
990 }
991
992 void do_freeb(int argc, char *argv[])
993 {
994 blk64_t block;
995 blk64_t count = 1;
996
997 if (common_block_args_process(argc, argv, &block, &count))
998 return;
999 if (check_fs_read_write(argv[0]))
1000 return;
1001 while (count-- > 0) {
1002 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1003 com_err(argv[0], 0, "Warning: block %llu already clear",
1004 block);
1005 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1006 block++;
1007 }
1008 ext2fs_mark_bb_dirty(current_fs);
1009 }
1010
1011 void do_setb(int argc, char *argv[])
1012 {
1013 blk64_t block;
1014 blk64_t count = 1;
1015
1016 if (common_block_args_process(argc, argv, &block, &count))
1017 return;
1018 if (check_fs_read_write(argv[0]))
1019 return;
1020 while (count-- > 0) {
1021 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1022 com_err(argv[0], 0, "Warning: block %llu already set",
1023 block);
1024 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1025 block++;
1026 }
1027 ext2fs_mark_bb_dirty(current_fs);
1028 }
1029
1030 void do_testb(int argc, char *argv[])
1031 {
1032 blk64_t block;
1033 blk64_t count = 1;
1034
1035 if (common_block_args_process(argc, argv, &block, &count))
1036 return;
1037 while (count-- > 0) {
1038 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1039 printf("Block %llu marked in use\n", block);
1040 else
1041 printf("Block %llu not in use\n", block);
1042 block++;
1043 }
1044 }
1045
1046 static void modify_u8(char *com, const char *prompt,
1047 const char *format, __u8 *val)
1048 {
1049 char buf[200];
1050 unsigned long v;
1051 char *tmp;
1052
1053 sprintf(buf, format, *val);
1054 printf("%30s [%s] ", prompt, buf);
1055 if (!fgets(buf, sizeof(buf), stdin))
1056 return;
1057 if (buf[strlen (buf) - 1] == '\n')
1058 buf[strlen (buf) - 1] = '\0';
1059 if (!buf[0])
1060 return;
1061 v = strtoul(buf, &tmp, 0);
1062 if (*tmp)
1063 com_err(com, 0, "Bad value - %s", buf);
1064 else
1065 *val = v;
1066 }
1067
1068 static void modify_u16(char *com, const char *prompt,
1069 const char *format, __u16 *val)
1070 {
1071 char buf[200];
1072 unsigned long v;
1073 char *tmp;
1074
1075 sprintf(buf, format, *val);
1076 printf("%30s [%s] ", prompt, buf);
1077 if (!fgets(buf, sizeof(buf), stdin))
1078 return;
1079 if (buf[strlen (buf) - 1] == '\n')
1080 buf[strlen (buf) - 1] = '\0';
1081 if (!buf[0])
1082 return;
1083 v = strtoul(buf, &tmp, 0);
1084 if (*tmp)
1085 com_err(com, 0, "Bad value - %s", buf);
1086 else
1087 *val = v;
1088 }
1089
1090 static void modify_u32(char *com, const char *prompt,
1091 const char *format, __u32 *val)
1092 {
1093 char buf[200];
1094 unsigned long v;
1095 char *tmp;
1096
1097 sprintf(buf, format, *val);
1098 printf("%30s [%s] ", prompt, buf);
1099 if (!fgets(buf, sizeof(buf), stdin))
1100 return;
1101 if (buf[strlen (buf) - 1] == '\n')
1102 buf[strlen (buf) - 1] = '\0';
1103 if (!buf[0])
1104 return;
1105 v = strtoul(buf, &tmp, 0);
1106 if (*tmp)
1107 com_err(com, 0, "Bad value - %s", buf);
1108 else
1109 *val = v;
1110 }
1111
1112
1113 void do_modify_inode(int argc, char *argv[])
1114 {
1115 struct ext2_inode inode;
1116 ext2_ino_t inode_num;
1117 int i;
1118 unsigned char *frag, *fsize;
1119 char buf[80];
1120 int os;
1121 const char *hex_format = "0x%x";
1122 const char *octal_format = "0%o";
1123 const char *decimal_format = "%d";
1124 const char *unsignedlong_format = "%lu";
1125
1126 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1127 return;
1128
1129 os = current_fs->super->s_creator_os;
1130
1131 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1132 return;
1133
1134 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1135 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1136 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1137 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1138 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1139 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1140 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1141 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1142 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1143 if (os == EXT2_OS_LINUX)
1144 modify_u16(argv[0], "Block count high", unsignedlong_format,
1145 &inode.osd2.linux2.l_i_blocks_hi);
1146 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1147 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1148 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1149 #if 0
1150 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1151 #endif
1152 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1153 if (LINUX_S_ISDIR(inode.i_mode))
1154 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1155 else
1156 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1157
1158 if (os == EXT2_OS_HURD)
1159 modify_u32(argv[0], "Translator Block",
1160 decimal_format, &inode.osd1.hurd1.h_i_translator);
1161
1162 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1163 switch (os) {
1164 case EXT2_OS_HURD:
1165 frag = &inode.osd2.hurd2.h_i_frag;
1166 fsize = &inode.osd2.hurd2.h_i_fsize;
1167 break;
1168 default:
1169 frag = fsize = 0;
1170 }
1171 if (frag)
1172 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1173 if (fsize)
1174 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1175
1176 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1177 sprintf(buf, "Direct Block #%d", i);
1178 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1179 }
1180 modify_u32(argv[0], "Indirect Block", decimal_format,
1181 &inode.i_block[EXT2_IND_BLOCK]);
1182 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1183 &inode.i_block[EXT2_DIND_BLOCK]);
1184 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1185 &inode.i_block[EXT2_TIND_BLOCK]);
1186 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1187 return;
1188 }
1189
1190 void do_change_working_dir(int argc, char *argv[])
1191 {
1192 ext2_ino_t inode;
1193 int retval;
1194
1195 if (common_inode_args_process(argc, argv, &inode, 0))
1196 return;
1197
1198 retval = ext2fs_check_directory(current_fs, inode);
1199 if (retval) {
1200 com_err(argv[1], retval, 0);
1201 return;
1202 }
1203 cwd = inode;
1204 return;
1205 }
1206
1207 void do_print_working_directory(int argc, char *argv[])
1208 {
1209 int retval;
1210 char *pathname = NULL;
1211
1212 if (common_args_process(argc, argv, 1, 1,
1213 "print_working_directory", "", 0))
1214 return;
1215
1216 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1217 if (retval) {
1218 com_err(argv[0], retval,
1219 "while trying to get pathname of cwd");
1220 }
1221 printf("[pwd] INODE: %6u PATH: %s\n",
1222 cwd, pathname ? pathname : "NULL");
1223 if (pathname) {
1224 free(pathname);
1225 pathname = NULL;
1226 }
1227 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1228 if (retval) {
1229 com_err(argv[0], retval,
1230 "while trying to get pathname of root");
1231 }
1232 printf("[root] INODE: %6u PATH: %s\n",
1233 root, pathname ? pathname : "NULL");
1234 if (pathname) {
1235 free(pathname);
1236 pathname = NULL;
1237 }
1238 return;
1239 }
1240
1241 /*
1242 * Given a mode, return the ext2 file type
1243 */
1244 static int ext2_file_type(unsigned int mode)
1245 {
1246 if (LINUX_S_ISREG(mode))
1247 return EXT2_FT_REG_FILE;
1248
1249 if (LINUX_S_ISDIR(mode))
1250 return EXT2_FT_DIR;
1251
1252 if (LINUX_S_ISCHR(mode))
1253 return EXT2_FT_CHRDEV;
1254
1255 if (LINUX_S_ISBLK(mode))
1256 return EXT2_FT_BLKDEV;
1257
1258 if (LINUX_S_ISLNK(mode))
1259 return EXT2_FT_SYMLINK;
1260
1261 if (LINUX_S_ISFIFO(mode))
1262 return EXT2_FT_FIFO;
1263
1264 if (LINUX_S_ISSOCK(mode))
1265 return EXT2_FT_SOCK;
1266
1267 return 0;
1268 }
1269
1270 static void make_link(char *sourcename, char *destname)
1271 {
1272 ext2_ino_t ino;
1273 struct ext2_inode inode;
1274 int retval;
1275 ext2_ino_t dir;
1276 char *dest, *cp, *base_name;
1277
1278 /*
1279 * Get the source inode
1280 */
1281 ino = string_to_inode(sourcename);
1282 if (!ino)
1283 return;
1284 base_name = strrchr(sourcename, '/');
1285 if (base_name)
1286 base_name++;
1287 else
1288 base_name = sourcename;
1289 /*
1290 * Figure out the destination. First see if it exists and is
1291 * a directory.
1292 */
1293 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1294 dest = base_name;
1295 else {
1296 /*
1297 * OK, it doesn't exist. See if it is
1298 * '<dir>/basename' or 'basename'
1299 */
1300 cp = strrchr(destname, '/');
1301 if (cp) {
1302 *cp = 0;
1303 dir = string_to_inode(destname);
1304 if (!dir)
1305 return;
1306 dest = cp+1;
1307 } else {
1308 dir = cwd;
1309 dest = destname;
1310 }
1311 }
1312
1313 if (debugfs_read_inode(ino, &inode, sourcename))
1314 return;
1315
1316 retval = ext2fs_link(current_fs, dir, dest, ino,
1317 ext2_file_type(inode.i_mode));
1318 if (retval)
1319 com_err("make_link", retval, 0);
1320 return;
1321 }
1322
1323
1324 void do_link(int argc, char *argv[])
1325 {
1326 if (common_args_process(argc, argv, 3, 3, "link",
1327 "<source file> <dest_name>", CHECK_FS_RW))
1328 return;
1329
1330 make_link(argv[1], argv[2]);
1331 }
1332
1333 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1334 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1335 blk64_t ref_block EXT2FS_ATTR((unused)),
1336 int ref_offset EXT2FS_ATTR((unused)),
1337 void *private EXT2FS_ATTR((unused)))
1338 {
1339 blk64_t block;
1340
1341 block = *blocknr;
1342 ext2fs_block_alloc_stats2(fs, block, +1);
1343 return 0;
1344 }
1345
1346 void do_undel(int argc, char *argv[])
1347 {
1348 ext2_ino_t ino;
1349 struct ext2_inode inode;
1350
1351 if (common_args_process(argc, argv, 2, 3, "undelete",
1352 "<inode_num> [dest_name]",
1353 CHECK_FS_RW | CHECK_FS_BITMAPS))
1354 return;
1355
1356 ino = string_to_inode(argv[1]);
1357 if (!ino)
1358 return;
1359
1360 if (debugfs_read_inode(ino, &inode, argv[1]))
1361 return;
1362
1363 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1364 com_err(argv[1], 0, "Inode is not marked as deleted");
1365 return;
1366 }
1367
1368 /*
1369 * XXX this function doesn't handle changing the links count on the
1370 * parent directory when undeleting a directory.
1371 */
1372 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1373 inode.i_dtime = 0;
1374
1375 if (debugfs_write_inode(ino, &inode, argv[0]))
1376 return;
1377
1378 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1379 mark_blocks_proc, NULL);
1380
1381 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1382
1383 if (argc > 2)
1384 make_link(argv[1], argv[2]);
1385 }
1386
1387 static void unlink_file_by_name(char *filename)
1388 {
1389 int retval;
1390 ext2_ino_t dir;
1391 char *base_name;
1392
1393 base_name = strrchr(filename, '/');
1394 if (base_name) {
1395 *base_name++ = '\0';
1396 dir = string_to_inode(filename);
1397 if (!dir)
1398 return;
1399 } else {
1400 dir = cwd;
1401 base_name = filename;
1402 }
1403 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1404 if (retval)
1405 com_err("unlink_file_by_name", retval, 0);
1406 return;
1407 }
1408
1409 void do_unlink(int argc, char *argv[])
1410 {
1411 if (common_args_process(argc, argv, 2, 2, "link",
1412 "<pathname>", CHECK_FS_RW))
1413 return;
1414
1415 unlink_file_by_name(argv[1]);
1416 }
1417
1418 void do_find_free_block(int argc, char *argv[])
1419 {
1420 blk64_t free_blk, goal, first_free = 0;
1421 int count;
1422 errcode_t retval;
1423 char *tmp;
1424
1425 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1426 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1427 return;
1428 }
1429 if (check_fs_open(argv[0]))
1430 return;
1431
1432 if (argc > 1) {
1433 count = strtol(argv[1],&tmp,0);
1434 if (*tmp) {
1435 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1436 return;
1437 }
1438 } else
1439 count = 1;
1440
1441 if (argc > 2) {
1442 goal = strtol(argv[2], &tmp, 0);
1443 if (*tmp) {
1444 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1445 return;
1446 }
1447 }
1448 else
1449 goal = current_fs->super->s_first_data_block;
1450
1451 printf("Free blocks found: ");
1452 free_blk = goal - 1;
1453 while (count-- > 0) {
1454 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1455 &free_blk);
1456 if (first_free) {
1457 if (first_free == free_blk)
1458 break;
1459 } else
1460 first_free = free_blk;
1461 if (retval) {
1462 com_err("ext2fs_new_block", retval, 0);
1463 return;
1464 } else
1465 printf("%llu ", free_blk);
1466 }
1467 printf("\n");
1468 }
1469
1470 void do_find_free_inode(int argc, char *argv[])
1471 {
1472 ext2_ino_t free_inode, dir;
1473 int mode;
1474 int retval;
1475 char *tmp;
1476
1477 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1478 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1479 return;
1480 }
1481 if (check_fs_open(argv[0]))
1482 return;
1483
1484 if (argc > 1) {
1485 dir = strtol(argv[1], &tmp, 0);
1486 if (*tmp) {
1487 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1488 return;
1489 }
1490 }
1491 else
1492 dir = root;
1493 if (argc > 2) {
1494 mode = strtol(argv[2], &tmp, 0);
1495 if (*tmp) {
1496 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1497 return;
1498 }
1499 } else
1500 mode = 010755;
1501
1502 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1503 if (retval)
1504 com_err("ext2fs_new_inode", retval, 0);
1505 else
1506 printf("Free inode found: %u\n", free_inode);
1507 }
1508
1509 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1510 {
1511 ext2_file_t e2_file;
1512 errcode_t retval;
1513 int got;
1514 unsigned int written;
1515 char buf[8192];
1516 char *ptr;
1517
1518 retval = ext2fs_file_open(current_fs, newfile,
1519 EXT2_FILE_WRITE, &e2_file);
1520 if (retval)
1521 return retval;
1522
1523 while (1) {
1524 got = read(fd, buf, sizeof(buf));
1525 if (got == 0)
1526 break;
1527 if (got < 0) {
1528 retval = errno;
1529 goto fail;
1530 }
1531 ptr = buf;
1532 while (got > 0) {
1533 retval = ext2fs_file_write(e2_file, ptr,
1534 got, &written);
1535 if (retval)
1536 goto fail;
1537
1538 got -= written;
1539 ptr += written;
1540 }
1541 }
1542 retval = ext2fs_file_close(e2_file);
1543 return retval;
1544
1545 fail:
1546 (void) ext2fs_file_close(e2_file);
1547 return retval;
1548 }
1549
1550
1551 void do_write(int argc, char *argv[])
1552 {
1553 int fd;
1554 struct stat statbuf;
1555 ext2_ino_t newfile;
1556 errcode_t retval;
1557 struct ext2_inode inode;
1558
1559 if (common_args_process(argc, argv, 3, 3, "write",
1560 "<native file> <new file>", CHECK_FS_RW))
1561 return;
1562
1563 fd = open(argv[1], O_RDONLY);
1564 if (fd < 0) {
1565 com_err(argv[1], errno, 0);
1566 return;
1567 }
1568 if (fstat(fd, &statbuf) < 0) {
1569 com_err(argv[1], errno, 0);
1570 close(fd);
1571 return;
1572 }
1573
1574 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1575 if (retval == 0) {
1576 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1577 close(fd);
1578 return;
1579 }
1580
1581 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1582 if (retval) {
1583 com_err(argv[0], retval, 0);
1584 close(fd);
1585 return;
1586 }
1587 printf("Allocated inode: %u\n", newfile);
1588 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1589 EXT2_FT_REG_FILE);
1590 if (retval == EXT2_ET_DIR_NO_SPACE) {
1591 retval = ext2fs_expand_dir(current_fs, cwd);
1592 if (retval) {
1593 com_err(argv[0], retval, "while expanding directory");
1594 close(fd);
1595 return;
1596 }
1597 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1598 EXT2_FT_REG_FILE);
1599 }
1600 if (retval) {
1601 com_err(argv[2], retval, 0);
1602 close(fd);
1603 return;
1604 }
1605 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1606 com_err(argv[0], 0, "Warning: inode already set");
1607 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1608 memset(&inode, 0, sizeof(inode));
1609 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1610 inode.i_atime = inode.i_ctime = inode.i_mtime =
1611 current_fs->now ? current_fs->now : time(0);
1612 inode.i_links_count = 1;
1613 inode.i_size = statbuf.st_size;
1614 if (current_fs->super->s_feature_incompat &
1615 EXT3_FEATURE_INCOMPAT_EXTENTS)
1616 inode.i_flags |= EXT4_EXTENTS_FL;
1617 if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1618 close(fd);
1619 return;
1620 }
1621 if (LINUX_S_ISREG(inode.i_mode)) {
1622 retval = copy_file(fd, newfile);
1623 if (retval)
1624 com_err("copy_file", retval, 0);
1625 }
1626 close(fd);
1627 }
1628
1629 void do_mknod(int argc, char *argv[])
1630 {
1631 unsigned long mode, major, minor;
1632 ext2_ino_t newfile;
1633 errcode_t retval;
1634 struct ext2_inode inode;
1635 int filetype, nr;
1636
1637 if (check_fs_open(argv[0]))
1638 return;
1639 if (argc < 3 || argv[2][1]) {
1640 usage:
1641 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1642 return;
1643 }
1644 mode = minor = major = 0;
1645 switch (argv[2][0]) {
1646 case 'p':
1647 mode = LINUX_S_IFIFO;
1648 filetype = EXT2_FT_FIFO;
1649 nr = 3;
1650 break;
1651 case 'c':
1652 mode = LINUX_S_IFCHR;
1653 filetype = EXT2_FT_CHRDEV;
1654 nr = 5;
1655 break;
1656 case 'b':
1657 mode = LINUX_S_IFBLK;
1658 filetype = EXT2_FT_BLKDEV;
1659 nr = 5;
1660 break;
1661 default:
1662 filetype = 0;
1663 nr = 0;
1664 }
1665 if (nr == 5) {
1666 major = strtoul(argv[3], argv+3, 0);
1667 minor = strtoul(argv[4], argv+4, 0);
1668 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1669 nr = 0;
1670 }
1671 if (argc != nr)
1672 goto usage;
1673 if (check_fs_read_write(argv[0]))
1674 return;
1675 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1676 if (retval) {
1677 com_err(argv[0], retval, 0);
1678 return;
1679 }
1680 printf("Allocated inode: %u\n", newfile);
1681 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1682 if (retval == EXT2_ET_DIR_NO_SPACE) {
1683 retval = ext2fs_expand_dir(current_fs, cwd);
1684 if (retval) {
1685 com_err(argv[0], retval, "while expanding directory");
1686 return;
1687 }
1688 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1689 filetype);
1690 }
1691 if (retval) {
1692 com_err(argv[1], retval, 0);
1693 return;
1694 }
1695 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1696 com_err(argv[0], 0, "Warning: inode already set");
1697 ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1698 ext2fs_mark_ib_dirty(current_fs);
1699 memset(&inode, 0, sizeof(inode));
1700 inode.i_mode = mode;
1701 inode.i_atime = inode.i_ctime = inode.i_mtime =
1702 current_fs->now ? current_fs->now : time(0);
1703 if ((major < 256) && (minor < 256)) {
1704 inode.i_block[0] = major*256+minor;
1705 inode.i_block[1] = 0;
1706 } else {
1707 inode.i_block[0] = 0;
1708 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1709 }
1710 inode.i_links_count = 1;
1711 if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1712 return;
1713 }
1714
1715 void do_mkdir(int argc, char *argv[])
1716 {
1717 char *cp;
1718 ext2_ino_t parent;
1719 char *name;
1720 errcode_t retval;
1721
1722 if (common_args_process(argc, argv, 2, 2, "mkdir",
1723 "<filename>", CHECK_FS_RW))
1724 return;
1725
1726 cp = strrchr(argv[1], '/');
1727 if (cp) {
1728 *cp = 0;
1729 parent = string_to_inode(argv[1]);
1730 if (!parent) {
1731 com_err(argv[1], ENOENT, 0);
1732 return;
1733 }
1734 name = cp+1;
1735 } else {
1736 parent = cwd;
1737 name = argv[1];
1738 }
1739
1740 try_again:
1741 retval = ext2fs_mkdir(current_fs, parent, 0, name);
1742 if (retval == EXT2_ET_DIR_NO_SPACE) {
1743 retval = ext2fs_expand_dir(current_fs, parent);
1744 if (retval) {
1745 com_err(argv[0], retval, "while expanding directory");
1746 return;
1747 }
1748 goto try_again;
1749 }
1750 if (retval) {
1751 com_err("ext2fs_mkdir", retval, 0);
1752 return;
1753 }
1754
1755 }
1756
1757 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1758 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1759 blk64_t ref_block EXT2FS_ATTR((unused)),
1760 int ref_offset EXT2FS_ATTR((unused)),
1761 void *private EXT2FS_ATTR((unused)))
1762 {
1763 blk64_t block;
1764
1765 block = *blocknr;
1766 ext2fs_block_alloc_stats2(fs, block, -1);
1767 return 0;
1768 }
1769
1770 static void kill_file_by_inode(ext2_ino_t inode)
1771 {
1772 struct ext2_inode inode_buf;
1773
1774 if (debugfs_read_inode(inode, &inode_buf, 0))
1775 return;
1776 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1777 if (debugfs_write_inode(inode, &inode_buf, 0))
1778 return;
1779 if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1780 return;
1781
1782 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1783 release_blocks_proc, NULL);
1784 printf("\n");
1785 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1786 LINUX_S_ISDIR(inode_buf.i_mode));
1787 }
1788
1789
1790 void do_kill_file(int argc, char *argv[])
1791 {
1792 ext2_ino_t inode_num;
1793
1794 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1795 return;
1796
1797 kill_file_by_inode(inode_num);
1798 }
1799
1800 void do_rm(int argc, char *argv[])
1801 {
1802 int retval;
1803 ext2_ino_t inode_num;
1804 struct ext2_inode inode;
1805
1806 if (common_args_process(argc, argv, 2, 2, "rm",
1807 "<filename>", CHECK_FS_RW))
1808 return;
1809
1810 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1811 if (retval) {
1812 com_err(argv[0], retval, "while trying to resolve filename");
1813 return;
1814 }
1815
1816 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1817 return;
1818
1819 if (LINUX_S_ISDIR(inode.i_mode)) {
1820 com_err(argv[0], 0, "file is a directory");
1821 return;
1822 }
1823
1824 --inode.i_links_count;
1825 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1826 return;
1827
1828 unlink_file_by_name(argv[1]);
1829 if (inode.i_links_count == 0)
1830 kill_file_by_inode(inode_num);
1831 }
1832
1833 struct rd_struct {
1834 ext2_ino_t parent;
1835 int empty;
1836 };
1837
1838 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1839 int entry EXT2FS_ATTR((unused)),
1840 struct ext2_dir_entry *dirent,
1841 int offset EXT2FS_ATTR((unused)),
1842 int blocksize EXT2FS_ATTR((unused)),
1843 char *buf EXT2FS_ATTR((unused)),
1844 void *private)
1845 {
1846 struct rd_struct *rds = (struct rd_struct *) private;
1847
1848 if (dirent->inode == 0)
1849 return 0;
1850 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1851 return 0;
1852 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1853 (dirent->name[1] == '.')) {
1854 rds->parent = dirent->inode;
1855 return 0;
1856 }
1857 rds->empty = 0;
1858 return 0;
1859 }
1860
1861 void do_rmdir(int argc, char *argv[])
1862 {
1863 int retval;
1864 ext2_ino_t inode_num;
1865 struct ext2_inode inode;
1866 struct rd_struct rds;
1867
1868 if (common_args_process(argc, argv, 2, 2, "rmdir",
1869 "<filename>", CHECK_FS_RW))
1870 return;
1871
1872 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1873 if (retval) {
1874 com_err(argv[0], retval, "while trying to resolve filename");
1875 return;
1876 }
1877
1878 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1879 return;
1880
1881 if (!LINUX_S_ISDIR(inode.i_mode)) {
1882 com_err(argv[0], 0, "file is not a directory");
1883 return;
1884 }
1885
1886 rds.parent = 0;
1887 rds.empty = 1;
1888
1889 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1890 0, rmdir_proc, &rds);
1891 if (retval) {
1892 com_err(argv[0], retval, "while iterating over directory");
1893 return;
1894 }
1895 if (rds.empty == 0) {
1896 com_err(argv[0], 0, "directory not empty");
1897 return;
1898 }
1899
1900 inode.i_links_count = 0;
1901 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1902 return;
1903
1904 unlink_file_by_name(argv[1]);
1905 kill_file_by_inode(inode_num);
1906
1907 if (rds.parent) {
1908 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1909 return;
1910 if (inode.i_links_count > 1)
1911 inode.i_links_count--;
1912 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1913 return;
1914 }
1915 }
1916
1917 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1918 char *argv[] EXT2FS_ATTR((unused)))
1919 {
1920 FILE *out = stdout;
1921
1922 if (current_fs)
1923 fprintf(out, "Open mode: read-%s\n",
1924 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1925 fprintf(out, "Filesystem in use: %s\n",
1926 current_fs ? current_fs->device_name : "--none--");
1927 }
1928
1929 void do_expand_dir(int argc, char *argv[])
1930 {
1931 ext2_ino_t inode;
1932 int retval;
1933
1934 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1935 return;
1936
1937 retval = ext2fs_expand_dir(current_fs, inode);
1938 if (retval)
1939 com_err("ext2fs_expand_dir", retval, 0);
1940 return;
1941 }
1942
1943 void do_features(int argc, char *argv[])
1944 {
1945 int i;
1946
1947 if (check_fs_open(argv[0]))
1948 return;
1949
1950 if ((argc != 1) && check_fs_read_write(argv[0]))
1951 return;
1952 for (i=1; i < argc; i++) {
1953 if (e2p_edit_feature(argv[i],
1954 &current_fs->super->s_feature_compat, 0))
1955 com_err(argv[0], 0, "Unknown feature: %s\n",
1956 argv[i]);
1957 else
1958 ext2fs_mark_super_dirty(current_fs);
1959 }
1960 print_features(current_fs->super, stdout);
1961 }
1962
1963 void do_bmap(int argc, char *argv[])
1964 {
1965 ext2_ino_t ino;
1966 blk64_t blk, pblk;
1967 int err;
1968 errcode_t errcode;
1969
1970 if (common_args_process(argc, argv, 3, 3, argv[0],
1971 "<file> logical_blk", 0))
1972 return;
1973
1974 ino = string_to_inode(argv[1]);
1975 if (!ino)
1976 return;
1977 blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1978
1979 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1980 if (errcode) {
1981 com_err("argv[0]", errcode,
1982 "while mapping logical block %llu\n", blk);
1983 return;
1984 }
1985 printf("%llu\n", pblk);
1986 }
1987
1988 void do_imap(int argc, char *argv[])
1989 {
1990 ext2_ino_t ino;
1991 unsigned long group, block, block_nr, offset;
1992
1993 if (common_args_process(argc, argv, 2, 2, argv[0],
1994 "<file>", 0))
1995 return;
1996 ino = string_to_inode(argv[1]);
1997 if (!ino)
1998 return;
1999
2000 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2001 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2002 EXT2_INODE_SIZE(current_fs->super);
2003 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2004 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2005 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2006 group);
2007 return;
2008 }
2009 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2010 block;
2011 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2012
2013 printf("Inode %d is part of block group %lu\n"
2014 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2015 block_nr, offset);
2016
2017 }
2018
2019 void do_set_current_time(int argc, char *argv[])
2020 {
2021 time_t now;
2022
2023 if (common_args_process(argc, argv, 2, 2, argv[0],
2024 "<time>", 0))
2025 return;
2026
2027 now = string_to_time(argv[1]);
2028 if (now == ((time_t) -1)) {
2029 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2030 argv[1]);
2031 return;
2032
2033 } else {
2034 printf("Setting current time to %s\n", time_to_string(now));
2035 current_fs->now = now;
2036 }
2037 }
2038
2039 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2040 {
2041 int compat, bit, ret;
2042 unsigned int feature_mask;
2043
2044 if (name) {
2045 if (feature_type == E2P_FS_FEATURE)
2046 ret = e2p_string2feature(name, &compat, &feature_mask);
2047 else
2048 ret = e2p_jrnl_string2feature(name, &compat,
2049 &feature_mask);
2050 if (ret)
2051 return ret;
2052
2053 if (!(supp[compat] & feature_mask))
2054 return 1;
2055 } else {
2056 for (compat = 0; compat < 3; compat++) {
2057 for (bit = 0, feature_mask = 1; bit < 32;
2058 bit++, feature_mask <<= 1) {
2059 if (supp[compat] & feature_mask) {
2060 if (feature_type == E2P_FS_FEATURE)
2061 fprintf(stdout, " %s",
2062 e2p_feature2string(compat,
2063 feature_mask));
2064 else
2065 fprintf(stdout, " %s",
2066 e2p_jrnl_feature2string(compat,
2067 feature_mask));
2068 }
2069 }
2070 }
2071 fprintf(stdout, "\n");
2072 }
2073
2074 return 0;
2075 }
2076
2077 void do_supported_features(int argc, char *argv[])
2078 {
2079 int ret;
2080 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2081 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2082 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2083 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2084 JFS_KNOWN_INCOMPAT_FEATURES,
2085 JFS_KNOWN_ROCOMPAT_FEATURES };
2086
2087 if (argc > 1) {
2088 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2089 if (ret) {
2090 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2091 argv[1]);
2092 }
2093 if (ret)
2094 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2095 else
2096 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2097 } else {
2098 fprintf(stdout, "Supported features:");
2099 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2100 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2101 }
2102 }
2103
2104 void do_punch(int argc, char *argv[])
2105 {
2106 ext2_ino_t ino;
2107 blk64_t start, end;
2108 int err;
2109 errcode_t errcode;
2110
2111 if (common_args_process(argc, argv, 3, 4, argv[0],
2112 "<file> start_blk [end_blk]",
2113 CHECK_FS_RW | CHECK_FS_BITMAPS))
2114 return;
2115
2116 ino = string_to_inode(argv[1]);
2117 if (!ino)
2118 return;
2119 start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2120 if (argc == 4)
2121 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2122 else
2123 end = ~0;
2124
2125 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2126
2127 if (errcode) {
2128 com_err(argv[0], errcode,
2129 "while truncating inode %u from %llu to %llu\n", ino,
2130 (unsigned long long) start, (unsigned long long) end);
2131 return;
2132 }
2133 }
2134
2135 static int source_file(const char *cmd_file, int sci_idx)
2136 {
2137 FILE *f;
2138 char buf[256];
2139 char *cp;
2140 int exit_status = 0;
2141 int retval;
2142
2143 if (strcmp(cmd_file, "-") == 0)
2144 f = stdin;
2145 else {
2146 f = fopen(cmd_file, "r");
2147 if (!f) {
2148 perror(cmd_file);
2149 exit(1);
2150 }
2151 }
2152 fflush(stdout);
2153 fflush(stderr);
2154 setbuf(stdout, NULL);
2155 setbuf(stderr, NULL);
2156 while (!feof(f)) {
2157 if (fgets(buf, sizeof(buf), f) == NULL)
2158 break;
2159 cp = strchr(buf, '\n');
2160 if (cp)
2161 *cp = 0;
2162 cp = strchr(buf, '\r');
2163 if (cp)
2164 *cp = 0;
2165 printf("debugfs: %s\n", buf);
2166 retval = ss_execute_line(sci_idx, buf);
2167 if (retval) {
2168 ss_perror(sci_idx, retval, buf);
2169 exit_status++;
2170 }
2171 }
2172 if (f != stdin)
2173 fclose(f);
2174 return exit_status;
2175 }
2176
2177 int main(int argc, char **argv)
2178 {
2179 int retval;
2180 int sci_idx;
2181 const char *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
2182 int c;
2183 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2184 char *request = 0;
2185 int exit_status = 0;
2186 char *cmd_file = 0;
2187 blk64_t superblock = 0;
2188 blk64_t blocksize = 0;
2189 int catastrophic = 0;
2190 char *data_filename = 0;
2191
2192 if (debug_prog_name == 0)
2193 debug_prog_name = "debugfs";
2194
2195 add_error_table(&et_ext2_error_table);
2196 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2197 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2198
2199 while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:D")) != EOF) {
2200 switch (c) {
2201 case 'R':
2202 request = optarg;
2203 break;
2204 case 'f':
2205 cmd_file = optarg;
2206 break;
2207 case 'd':
2208 data_filename = optarg;
2209 break;
2210 case 'i':
2211 open_flags |= EXT2_FLAG_IMAGE_FILE;
2212 break;
2213 case 'w':
2214 open_flags |= EXT2_FLAG_RW;
2215 break;
2216 case 'D':
2217 open_flags |= EXT2_FLAG_DIRECT_IO;
2218 break;
2219 case 'b':
2220 blocksize = parse_ulong(optarg, argv[0],
2221 "block size", 0);
2222 break;
2223 case 's':
2224 superblock = parse_ulong(optarg, argv[0],
2225 "superblock number", 0);
2226 break;
2227 case 'c':
2228 catastrophic = 1;
2229 break;
2230 case 'V':
2231 /* Print version number and exit */
2232 fprintf(stderr, "\tUsing %s\n",
2233 error_message(EXT2_ET_BASE));
2234 exit(0);
2235 default:
2236 com_err(argv[0], 0, usage, debug_prog_name);
2237 return 1;
2238 }
2239 }
2240 if (optind < argc)
2241 open_filesystem(argv[optind], open_flags,
2242 superblock, blocksize, catastrophic,
2243 data_filename);
2244
2245 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2246 &debug_cmds, &retval);
2247 if (retval) {
2248 ss_perror(sci_idx, retval, "creating invocation");
2249 exit(1);
2250 }
2251 ss_get_readline(sci_idx);
2252
2253 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2254 if (retval) {
2255 ss_perror(sci_idx, retval, "adding standard requests");
2256 exit (1);
2257 }
2258 if (extra_cmds)
2259 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2260 if (retval) {
2261 ss_perror(sci_idx, retval, "adding extra requests");
2262 exit (1);
2263 }
2264 if (request) {
2265 retval = 0;
2266 retval = ss_execute_line(sci_idx, request);
2267 if (retval) {
2268 ss_perror(sci_idx, retval, request);
2269 exit_status++;
2270 }
2271 } else if (cmd_file) {
2272 exit_status = source_file(cmd_file, sci_idx);
2273 } else {
2274 ss_listen(sci_idx);
2275 }
2276
2277 ss_delete_invocation(sci_idx);
2278
2279 if (current_fs)
2280 close_filesystem();
2281
2282 remove_error_table(&et_ext2_error_table);
2283 return exit_status;
2284 }
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