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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 print_usage:
881 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
882 return;
883 }
884
885 if (flags == 0)
886 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
887 flags |= DUMP_EXTENT_TABLE;
888
889 if (check_fs_open(argv[0]))
890 return;
891
892 ino = string_to_inode(argv[optind]);
893 if (ino == 0)
894 return;
895
896 if (debugfs_read_inode(ino, &inode, argv[0]))
897 return;
898
899 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
900 fprintf(stderr, "%s: does not uses extent block maps\n",
901 argv[optind]);
902 return;
903 }
904
905 logical_width = int_log10(((inode.i_size |
906 (__u64) inode.i_size_high << 32) +
907 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 void do_chroot(int argc, char *argv[])
922 {
923 ext2_ino_t inode;
924 int retval;
925
926 if (common_inode_args_process(argc, argv, &inode, 0))
927 return;
928
929 retval = ext2fs_check_directory(current_fs, inode);
930 if (retval) {
931 com_err(argv[1], retval, 0);
932 return;
933 }
934 root = inode;
935 }
936
937 void do_clri(int argc, char *argv[])
938 {
939 ext2_ino_t inode;
940 struct ext2_inode inode_buf;
941
942 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
943 return;
944
945 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
946 return;
947 memset(&inode_buf, 0, sizeof(inode_buf));
948 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
949 return;
950 }
951
952 void do_freei(int argc, char *argv[])
953 {
954 ext2_ino_t inode;
955
956 if (common_inode_args_process(argc, argv, &inode,
957 CHECK_FS_RW | CHECK_FS_BITMAPS))
958 return;
959
960 if (!ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
961 com_err(argv[0], 0, "Warning: inode already clear");
962 ext2fs_unmark_inode_bitmap2(current_fs->inode_map,inode);
963 ext2fs_mark_ib_dirty(current_fs);
964 }
965
966 void do_seti(int argc, char *argv[])
967 {
968 ext2_ino_t inode;
969
970 if (common_inode_args_process(argc, argv, &inode,
971 CHECK_FS_RW | CHECK_FS_BITMAPS))
972 return;
973
974 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
975 com_err(argv[0], 0, "Warning: inode already set");
976 ext2fs_mark_inode_bitmap2(current_fs->inode_map,inode);
977 ext2fs_mark_ib_dirty(current_fs);
978 }
979
980 void do_testi(int argc, char *argv[])
981 {
982 ext2_ino_t inode;
983
984 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
985 return;
986
987 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
988 printf("Inode %u is marked in use\n", inode);
989 else
990 printf("Inode %u is not in use\n", inode);
991 }
992
993 void do_freeb(int argc, char *argv[])
994 {
995 blk64_t block;
996 blk64_t count = 1;
997
998 if (common_block_args_process(argc, argv, &block, &count))
999 return;
1000 if (check_fs_read_write(argv[0]))
1001 return;
1002 while (count-- > 0) {
1003 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1004 com_err(argv[0], 0, "Warning: block %llu already clear",
1005 block);
1006 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1007 block++;
1008 }
1009 ext2fs_mark_bb_dirty(current_fs);
1010 }
1011
1012 void do_setb(int argc, char *argv[])
1013 {
1014 blk64_t block;
1015 blk64_t count = 1;
1016
1017 if (common_block_args_process(argc, argv, &block, &count))
1018 return;
1019 if (check_fs_read_write(argv[0]))
1020 return;
1021 while (count-- > 0) {
1022 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1023 com_err(argv[0], 0, "Warning: block %llu already set",
1024 block);
1025 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1026 block++;
1027 }
1028 ext2fs_mark_bb_dirty(current_fs);
1029 }
1030
1031 void do_testb(int argc, char *argv[])
1032 {
1033 blk64_t block;
1034 blk64_t count = 1;
1035
1036 if (common_block_args_process(argc, argv, &block, &count))
1037 return;
1038 while (count-- > 0) {
1039 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1040 printf("Block %llu marked in use\n", block);
1041 else
1042 printf("Block %llu not in use\n", block);
1043 block++;
1044 }
1045 }
1046
1047 static void modify_u8(char *com, const char *prompt,
1048 const char *format, __u8 *val)
1049 {
1050 char buf[200];
1051 unsigned long v;
1052 char *tmp;
1053
1054 sprintf(buf, format, *val);
1055 printf("%30s [%s] ", prompt, buf);
1056 if (!fgets(buf, sizeof(buf), stdin))
1057 return;
1058 if (buf[strlen (buf) - 1] == '\n')
1059 buf[strlen (buf) - 1] = '\0';
1060 if (!buf[0])
1061 return;
1062 v = strtoul(buf, &tmp, 0);
1063 if (*tmp)
1064 com_err(com, 0, "Bad value - %s", buf);
1065 else
1066 *val = v;
1067 }
1068
1069 static void modify_u16(char *com, const char *prompt,
1070 const char *format, __u16 *val)
1071 {
1072 char buf[200];
1073 unsigned long v;
1074 char *tmp;
1075
1076 sprintf(buf, format, *val);
1077 printf("%30s [%s] ", prompt, buf);
1078 if (!fgets(buf, sizeof(buf), stdin))
1079 return;
1080 if (buf[strlen (buf) - 1] == '\n')
1081 buf[strlen (buf) - 1] = '\0';
1082 if (!buf[0])
1083 return;
1084 v = strtoul(buf, &tmp, 0);
1085 if (*tmp)
1086 com_err(com, 0, "Bad value - %s", buf);
1087 else
1088 *val = v;
1089 }
1090
1091 static void modify_u32(char *com, const char *prompt,
1092 const char *format, __u32 *val)
1093 {
1094 char buf[200];
1095 unsigned long v;
1096 char *tmp;
1097
1098 sprintf(buf, format, *val);
1099 printf("%30s [%s] ", prompt, buf);
1100 if (!fgets(buf, sizeof(buf), stdin))
1101 return;
1102 if (buf[strlen (buf) - 1] == '\n')
1103 buf[strlen (buf) - 1] = '\0';
1104 if (!buf[0])
1105 return;
1106 v = strtoul(buf, &tmp, 0);
1107 if (*tmp)
1108 com_err(com, 0, "Bad value - %s", buf);
1109 else
1110 *val = v;
1111 }
1112
1113
1114 void do_modify_inode(int argc, char *argv[])
1115 {
1116 struct ext2_inode inode;
1117 ext2_ino_t inode_num;
1118 int i;
1119 unsigned char *frag, *fsize;
1120 char buf[80];
1121 int os;
1122 const char *hex_format = "0x%x";
1123 const char *octal_format = "0%o";
1124 const char *decimal_format = "%d";
1125 const char *unsignedlong_format = "%lu";
1126
1127 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1128 return;
1129
1130 os = current_fs->super->s_creator_os;
1131
1132 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1133 return;
1134
1135 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1136 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1137 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1138 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1139 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1140 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1141 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1142 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1143 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1144 if (os == EXT2_OS_LINUX)
1145 modify_u16(argv[0], "Block count high", unsignedlong_format,
1146 &inode.osd2.linux2.l_i_blocks_hi);
1147 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1148 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1149 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1150 #if 0
1151 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1152 #endif
1153 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1154 if (LINUX_S_ISDIR(inode.i_mode))
1155 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
1156 else
1157 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
1158
1159 if (os == EXT2_OS_HURD)
1160 modify_u32(argv[0], "Translator Block",
1161 decimal_format, &inode.osd1.hurd1.h_i_translator);
1162
1163 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1164 switch (os) {
1165 case EXT2_OS_HURD:
1166 frag = &inode.osd2.hurd2.h_i_frag;
1167 fsize = &inode.osd2.hurd2.h_i_fsize;
1168 break;
1169 default:
1170 frag = fsize = 0;
1171 }
1172 if (frag)
1173 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1174 if (fsize)
1175 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1176
1177 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1178 sprintf(buf, "Direct Block #%d", i);
1179 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1180 }
1181 modify_u32(argv[0], "Indirect Block", decimal_format,
1182 &inode.i_block[EXT2_IND_BLOCK]);
1183 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1184 &inode.i_block[EXT2_DIND_BLOCK]);
1185 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1186 &inode.i_block[EXT2_TIND_BLOCK]);
1187 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1188 return;
1189 }
1190
1191 void do_change_working_dir(int argc, char *argv[])
1192 {
1193 ext2_ino_t inode;
1194 int retval;
1195
1196 if (common_inode_args_process(argc, argv, &inode, 0))
1197 return;
1198
1199 retval = ext2fs_check_directory(current_fs, inode);
1200 if (retval) {
1201 com_err(argv[1], retval, 0);
1202 return;
1203 }
1204 cwd = inode;
1205 return;
1206 }
1207
1208 void do_print_working_directory(int argc, char *argv[])
1209 {
1210 int retval;
1211 char *pathname = NULL;
1212
1213 if (common_args_process(argc, argv, 1, 1,
1214 "print_working_directory", "", 0))
1215 return;
1216
1217 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1218 if (retval) {
1219 com_err(argv[0], retval,
1220 "while trying to get pathname of cwd");
1221 }
1222 printf("[pwd] INODE: %6u PATH: %s\n",
1223 cwd, pathname ? pathname : "NULL");
1224 if (pathname) {
1225 free(pathname);
1226 pathname = NULL;
1227 }
1228 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1229 if (retval) {
1230 com_err(argv[0], retval,
1231 "while trying to get pathname of root");
1232 }
1233 printf("[root] INODE: %6u PATH: %s\n",
1234 root, pathname ? pathname : "NULL");
1235 if (pathname) {
1236 free(pathname);
1237 pathname = NULL;
1238 }
1239 return;
1240 }
1241
1242 /*
1243 * Given a mode, return the ext2 file type
1244 */
1245 static int ext2_file_type(unsigned int mode)
1246 {
1247 if (LINUX_S_ISREG(mode))
1248 return EXT2_FT_REG_FILE;
1249
1250 if (LINUX_S_ISDIR(mode))
1251 return EXT2_FT_DIR;
1252
1253 if (LINUX_S_ISCHR(mode))
1254 return EXT2_FT_CHRDEV;
1255
1256 if (LINUX_S_ISBLK(mode))
1257 return EXT2_FT_BLKDEV;
1258
1259 if (LINUX_S_ISLNK(mode))
1260 return EXT2_FT_SYMLINK;
1261
1262 if (LINUX_S_ISFIFO(mode))
1263 return EXT2_FT_FIFO;
1264
1265 if (LINUX_S_ISSOCK(mode))
1266 return EXT2_FT_SOCK;
1267
1268 return 0;
1269 }
1270
1271 static void make_link(char *sourcename, char *destname)
1272 {
1273 ext2_ino_t ino;
1274 struct ext2_inode inode;
1275 int retval;
1276 ext2_ino_t dir;
1277 char *dest, *cp, *base_name;
1278
1279 /*
1280 * Get the source inode
1281 */
1282 ino = string_to_inode(sourcename);
1283 if (!ino)
1284 return;
1285 base_name = strrchr(sourcename, '/');
1286 if (base_name)
1287 base_name++;
1288 else
1289 base_name = sourcename;
1290 /*
1291 * Figure out the destination. First see if it exists and is
1292 * a directory.
1293 */
1294 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1295 dest = base_name;
1296 else {
1297 /*
1298 * OK, it doesn't exist. See if it is
1299 * '<dir>/basename' or 'basename'
1300 */
1301 cp = strrchr(destname, '/');
1302 if (cp) {
1303 *cp = 0;
1304 dir = string_to_inode(destname);
1305 if (!dir)
1306 return;
1307 dest = cp+1;
1308 } else {
1309 dir = cwd;
1310 dest = destname;
1311 }
1312 }
1313
1314 if (debugfs_read_inode(ino, &inode, sourcename))
1315 return;
1316
1317 retval = ext2fs_link(current_fs, dir, dest, ino,
1318 ext2_file_type(inode.i_mode));
1319 if (retval)
1320 com_err("make_link", retval, 0);
1321 return;
1322 }
1323
1324
1325 void do_link(int argc, char *argv[])
1326 {
1327 if (common_args_process(argc, argv, 3, 3, "link",
1328 "<source file> <dest_name>", CHECK_FS_RW))
1329 return;
1330
1331 make_link(argv[1], argv[2]);
1332 }
1333
1334 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1335 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1336 blk64_t ref_block EXT2FS_ATTR((unused)),
1337 int ref_offset EXT2FS_ATTR((unused)),
1338 void *private EXT2FS_ATTR((unused)))
1339 {
1340 blk64_t block;
1341
1342 block = *blocknr;
1343 ext2fs_block_alloc_stats2(fs, block, +1);
1344 return 0;
1345 }
1346
1347 void do_undel(int argc, char *argv[])
1348 {
1349 ext2_ino_t ino;
1350 struct ext2_inode inode;
1351
1352 if (common_args_process(argc, argv, 2, 3, "undelete",
1353 "<inode_num> [dest_name]",
1354 CHECK_FS_RW | CHECK_FS_BITMAPS))
1355 return;
1356
1357 ino = string_to_inode(argv[1]);
1358 if (!ino)
1359 return;
1360
1361 if (debugfs_read_inode(ino, &inode, argv[1]))
1362 return;
1363
1364 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1365 com_err(argv[1], 0, "Inode is not marked as deleted");
1366 return;
1367 }
1368
1369 /*
1370 * XXX this function doesn't handle changing the links count on the
1371 * parent directory when undeleting a directory.
1372 */
1373 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1374 inode.i_dtime = 0;
1375
1376 if (debugfs_write_inode(ino, &inode, argv[0]))
1377 return;
1378
1379 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1380 mark_blocks_proc, NULL);
1381
1382 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1383
1384 if (argc > 2)
1385 make_link(argv[1], argv[2]);
1386 }
1387
1388 static void unlink_file_by_name(char *filename)
1389 {
1390 int retval;
1391 ext2_ino_t dir;
1392 char *base_name;
1393
1394 base_name = strrchr(filename, '/');
1395 if (base_name) {
1396 *base_name++ = '\0';
1397 dir = string_to_inode(filename);
1398 if (!dir)
1399 return;
1400 } else {
1401 dir = cwd;
1402 base_name = filename;
1403 }
1404 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1405 if (retval)
1406 com_err("unlink_file_by_name", retval, 0);
1407 return;
1408 }
1409
1410 void do_unlink(int argc, char *argv[])
1411 {
1412 if (common_args_process(argc, argv, 2, 2, "link",
1413 "<pathname>", CHECK_FS_RW))
1414 return;
1415
1416 unlink_file_by_name(argv[1]);
1417 }
1418
1419 void do_find_free_block(int argc, char *argv[])
1420 {
1421 blk64_t free_blk, goal, first_free = 0;
1422 int count;
1423 errcode_t retval;
1424 char *tmp;
1425
1426 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1427 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1428 return;
1429 }
1430 if (check_fs_open(argv[0]))
1431 return;
1432
1433 if (argc > 1) {
1434 count = strtol(argv[1],&tmp,0);
1435 if (*tmp) {
1436 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1437 return;
1438 }
1439 } else
1440 count = 1;
1441
1442 if (argc > 2) {
1443 goal = strtol(argv[2], &tmp, 0);
1444 if (*tmp) {
1445 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1446 return;
1447 }
1448 }
1449 else
1450 goal = current_fs->super->s_first_data_block;
1451
1452 printf("Free blocks found: ");
1453 free_blk = goal - 1;
1454 while (count-- > 0) {
1455 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1456 &free_blk);
1457 if (first_free) {
1458 if (first_free == free_blk)
1459 break;
1460 } else
1461 first_free = free_blk;
1462 if (retval) {
1463 com_err("ext2fs_new_block", retval, 0);
1464 return;
1465 } else
1466 printf("%llu ", free_blk);
1467 }
1468 printf("\n");
1469 }
1470
1471 void do_find_free_inode(int argc, char *argv[])
1472 {
1473 ext2_ino_t free_inode, dir;
1474 int mode;
1475 int retval;
1476 char *tmp;
1477
1478 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1479 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1480 return;
1481 }
1482 if (check_fs_open(argv[0]))
1483 return;
1484
1485 if (argc > 1) {
1486 dir = strtol(argv[1], &tmp, 0);
1487 if (*tmp) {
1488 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1489 return;
1490 }
1491 }
1492 else
1493 dir = root;
1494 if (argc > 2) {
1495 mode = strtol(argv[2], &tmp, 0);
1496 if (*tmp) {
1497 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1498 return;
1499 }
1500 } else
1501 mode = 010755;
1502
1503 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1504 if (retval)
1505 com_err("ext2fs_new_inode", retval, 0);
1506 else
1507 printf("Free inode found: %u\n", free_inode);
1508 }
1509
1510 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1511 {
1512 ext2_file_t e2_file;
1513 errcode_t retval;
1514 int got;
1515 unsigned int written;
1516 char buf[8192];
1517 char *ptr;
1518
1519 retval = ext2fs_file_open(current_fs, newfile,
1520 EXT2_FILE_WRITE, &e2_file);
1521 if (retval)
1522 return retval;
1523
1524 while (1) {
1525 got = read(fd, buf, sizeof(buf));
1526 if (got == 0)
1527 break;
1528 if (got < 0) {
1529 retval = errno;
1530 goto fail;
1531 }
1532 ptr = buf;
1533 while (got > 0) {
1534 retval = ext2fs_file_write(e2_file, ptr,
1535 got, &written);
1536 if (retval)
1537 goto fail;
1538
1539 got -= written;
1540 ptr += written;
1541 }
1542 }
1543 retval = ext2fs_file_close(e2_file);
1544 return retval;
1545
1546 fail:
1547 (void) ext2fs_file_close(e2_file);
1548 return retval;
1549 }
1550
1551
1552 void do_write(int argc, char *argv[])
1553 {
1554 int fd;
1555 struct stat statbuf;
1556 ext2_ino_t newfile;
1557 errcode_t retval;
1558 struct ext2_inode inode;
1559
1560 if (common_args_process(argc, argv, 3, 3, "write",
1561 "<native file> <new file>", CHECK_FS_RW))
1562 return;
1563
1564 fd = open(argv[1], O_RDONLY);
1565 if (fd < 0) {
1566 com_err(argv[1], errno, 0);
1567 return;
1568 }
1569 if (fstat(fd, &statbuf) < 0) {
1570 com_err(argv[1], errno, 0);
1571 close(fd);
1572 return;
1573 }
1574
1575 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1576 if (retval == 0) {
1577 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1578 close(fd);
1579 return;
1580 }
1581
1582 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1583 if (retval) {
1584 com_err(argv[0], retval, 0);
1585 close(fd);
1586 return;
1587 }
1588 printf("Allocated inode: %u\n", newfile);
1589 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1590 EXT2_FT_REG_FILE);
1591 if (retval == EXT2_ET_DIR_NO_SPACE) {
1592 retval = ext2fs_expand_dir(current_fs, cwd);
1593 if (retval) {
1594 com_err(argv[0], retval, "while expanding directory");
1595 close(fd);
1596 return;
1597 }
1598 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1599 EXT2_FT_REG_FILE);
1600 }
1601 if (retval) {
1602 com_err(argv[2], retval, 0);
1603 close(fd);
1604 return;
1605 }
1606 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1607 com_err(argv[0], 0, "Warning: inode already set");
1608 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1609 memset(&inode, 0, sizeof(inode));
1610 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1611 inode.i_atime = inode.i_ctime = inode.i_mtime =
1612 current_fs->now ? current_fs->now : time(0);
1613 inode.i_links_count = 1;
1614 inode.i_size = statbuf.st_size;
1615 if (current_fs->super->s_feature_incompat &
1616 EXT3_FEATURE_INCOMPAT_EXTENTS)
1617 inode.i_flags |= EXT4_EXTENTS_FL;
1618 if (debugfs_write_new_inode(newfile, &inode, argv[0])) {
1619 close(fd);
1620 return;
1621 }
1622 if (LINUX_S_ISREG(inode.i_mode)) {
1623 retval = copy_file(fd, newfile);
1624 if (retval)
1625 com_err("copy_file", retval, 0);
1626 }
1627 close(fd);
1628 }
1629
1630 void do_mknod(int argc, char *argv[])
1631 {
1632 unsigned long mode, major, minor;
1633 ext2_ino_t newfile;
1634 errcode_t retval;
1635 struct ext2_inode inode;
1636 int filetype, nr;
1637
1638 if (check_fs_open(argv[0]))
1639 return;
1640 if (argc < 3 || argv[2][1]) {
1641 usage:
1642 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1643 return;
1644 }
1645 mode = minor = major = 0;
1646 switch (argv[2][0]) {
1647 case 'p':
1648 mode = LINUX_S_IFIFO;
1649 filetype = EXT2_FT_FIFO;
1650 nr = 3;
1651 break;
1652 case 'c':
1653 mode = LINUX_S_IFCHR;
1654 filetype = EXT2_FT_CHRDEV;
1655 nr = 5;
1656 break;
1657 case 'b':
1658 mode = LINUX_S_IFBLK;
1659 filetype = EXT2_FT_BLKDEV;
1660 nr = 5;
1661 break;
1662 default:
1663 filetype = 0;
1664 nr = 0;
1665 }
1666 if (nr == 5) {
1667 major = strtoul(argv[3], argv+3, 0);
1668 minor = strtoul(argv[4], argv+4, 0);
1669 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1670 nr = 0;
1671 }
1672 if (argc != nr)
1673 goto usage;
1674 if (check_fs_read_write(argv[0]))
1675 return;
1676 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1677 if (retval) {
1678 com_err(argv[0], retval, 0);
1679 return;
1680 }
1681 printf("Allocated inode: %u\n", newfile);
1682 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1683 if (retval == EXT2_ET_DIR_NO_SPACE) {
1684 retval = ext2fs_expand_dir(current_fs, cwd);
1685 if (retval) {
1686 com_err(argv[0], retval, "while expanding directory");
1687 return;
1688 }
1689 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1690 filetype);
1691 }
1692 if (retval) {
1693 com_err(argv[1], retval, 0);
1694 return;
1695 }
1696 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,newfile))
1697 com_err(argv[0], 0, "Warning: inode already set");
1698 ext2fs_mark_inode_bitmap2(current_fs->inode_map, newfile);
1699 ext2fs_mark_ib_dirty(current_fs);
1700 memset(&inode, 0, sizeof(inode));
1701 inode.i_mode = mode;
1702 inode.i_atime = inode.i_ctime = inode.i_mtime =
1703 current_fs->now ? current_fs->now : time(0);
1704 if ((major < 256) && (minor < 256)) {
1705 inode.i_block[0] = major*256+minor;
1706 inode.i_block[1] = 0;
1707 } else {
1708 inode.i_block[0] = 0;
1709 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1710 }
1711 inode.i_links_count = 1;
1712 if (debugfs_write_new_inode(newfile, &inode, argv[0]))
1713 return;
1714 }
1715
1716 void do_mkdir(int argc, char *argv[])
1717 {
1718 char *cp;
1719 ext2_ino_t parent;
1720 char *name;
1721 errcode_t retval;
1722
1723 if (common_args_process(argc, argv, 2, 2, "mkdir",
1724 "<filename>", CHECK_FS_RW))
1725 return;
1726
1727 cp = strrchr(argv[1], '/');
1728 if (cp) {
1729 *cp = 0;
1730 parent = string_to_inode(argv[1]);
1731 if (!parent) {
1732 com_err(argv[1], ENOENT, 0);
1733 return;
1734 }
1735 name = cp+1;
1736 } else {
1737 parent = cwd;
1738 name = argv[1];
1739 }
1740
1741 try_again:
1742 retval = ext2fs_mkdir(current_fs, parent, 0, name);
1743 if (retval == EXT2_ET_DIR_NO_SPACE) {
1744 retval = ext2fs_expand_dir(current_fs, parent);
1745 if (retval) {
1746 com_err(argv[0], retval, "while expanding directory");
1747 return;
1748 }
1749 goto try_again;
1750 }
1751 if (retval) {
1752 com_err("ext2fs_mkdir", retval, 0);
1753 return;
1754 }
1755
1756 }
1757
1758 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1759 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1760 blk64_t ref_block EXT2FS_ATTR((unused)),
1761 int ref_offset EXT2FS_ATTR((unused)),
1762 void *private EXT2FS_ATTR((unused)))
1763 {
1764 blk64_t block;
1765
1766 block = *blocknr;
1767 ext2fs_block_alloc_stats2(fs, block, -1);
1768 return 0;
1769 }
1770
1771 static void kill_file_by_inode(ext2_ino_t inode)
1772 {
1773 struct ext2_inode inode_buf;
1774
1775 if (debugfs_read_inode(inode, &inode_buf, 0))
1776 return;
1777 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1778 if (debugfs_write_inode(inode, &inode_buf, 0))
1779 return;
1780 if (!ext2fs_inode_has_valid_blocks(&inode_buf))
1781 return;
1782
1783 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1784 release_blocks_proc, NULL);
1785 printf("\n");
1786 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1787 LINUX_S_ISDIR(inode_buf.i_mode));
1788 }
1789
1790
1791 void do_kill_file(int argc, char *argv[])
1792 {
1793 ext2_ino_t inode_num;
1794
1795 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1796 return;
1797
1798 kill_file_by_inode(inode_num);
1799 }
1800
1801 void do_rm(int argc, char *argv[])
1802 {
1803 int retval;
1804 ext2_ino_t inode_num;
1805 struct ext2_inode inode;
1806
1807 if (common_args_process(argc, argv, 2, 2, "rm",
1808 "<filename>", CHECK_FS_RW))
1809 return;
1810
1811 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1812 if (retval) {
1813 com_err(argv[0], retval, "while trying to resolve filename");
1814 return;
1815 }
1816
1817 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1818 return;
1819
1820 if (LINUX_S_ISDIR(inode.i_mode)) {
1821 com_err(argv[0], 0, "file is a directory");
1822 return;
1823 }
1824
1825 --inode.i_links_count;
1826 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1827 return;
1828
1829 unlink_file_by_name(argv[1]);
1830 if (inode.i_links_count == 0)
1831 kill_file_by_inode(inode_num);
1832 }
1833
1834 struct rd_struct {
1835 ext2_ino_t parent;
1836 int empty;
1837 };
1838
1839 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1840 int entry EXT2FS_ATTR((unused)),
1841 struct ext2_dir_entry *dirent,
1842 int offset EXT2FS_ATTR((unused)),
1843 int blocksize EXT2FS_ATTR((unused)),
1844 char *buf EXT2FS_ATTR((unused)),
1845 void *private)
1846 {
1847 struct rd_struct *rds = (struct rd_struct *) private;
1848
1849 if (dirent->inode == 0)
1850 return 0;
1851 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1852 return 0;
1853 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1854 (dirent->name[1] == '.')) {
1855 rds->parent = dirent->inode;
1856 return 0;
1857 }
1858 rds->empty = 0;
1859 return 0;
1860 }
1861
1862 void do_rmdir(int argc, char *argv[])
1863 {
1864 int retval;
1865 ext2_ino_t inode_num;
1866 struct ext2_inode inode;
1867 struct rd_struct rds;
1868
1869 if (common_args_process(argc, argv, 2, 2, "rmdir",
1870 "<filename>", CHECK_FS_RW))
1871 return;
1872
1873 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1874 if (retval) {
1875 com_err(argv[0], retval, "while trying to resolve filename");
1876 return;
1877 }
1878
1879 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1880 return;
1881
1882 if (!LINUX_S_ISDIR(inode.i_mode)) {
1883 com_err(argv[0], 0, "file is not a directory");
1884 return;
1885 }
1886
1887 rds.parent = 0;
1888 rds.empty = 1;
1889
1890 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1891 0, rmdir_proc, &rds);
1892 if (retval) {
1893 com_err(argv[0], retval, "while iterating over directory");
1894 return;
1895 }
1896 if (rds.empty == 0) {
1897 com_err(argv[0], 0, "directory not empty");
1898 return;
1899 }
1900
1901 inode.i_links_count = 0;
1902 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1903 return;
1904
1905 unlink_file_by_name(argv[1]);
1906 kill_file_by_inode(inode_num);
1907
1908 if (rds.parent) {
1909 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1910 return;
1911 if (inode.i_links_count > 1)
1912 inode.i_links_count--;
1913 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1914 return;
1915 }
1916 }
1917
1918 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1919 char *argv[] EXT2FS_ATTR((unused)))
1920 {
1921 FILE *out = stdout;
1922
1923 if (current_fs)
1924 fprintf(out, "Open mode: read-%s\n",
1925 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1926 fprintf(out, "Filesystem in use: %s\n",
1927 current_fs ? current_fs->device_name : "--none--");
1928 }
1929
1930 void do_expand_dir(int argc, char *argv[])
1931 {
1932 ext2_ino_t inode;
1933 int retval;
1934
1935 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1936 return;
1937
1938 retval = ext2fs_expand_dir(current_fs, inode);
1939 if (retval)
1940 com_err("ext2fs_expand_dir", retval, 0);
1941 return;
1942 }
1943
1944 void do_features(int argc, char *argv[])
1945 {
1946 int i;
1947
1948 if (check_fs_open(argv[0]))
1949 return;
1950
1951 if ((argc != 1) && check_fs_read_write(argv[0]))
1952 return;
1953 for (i=1; i < argc; i++) {
1954 if (e2p_edit_feature(argv[i],
1955 &current_fs->super->s_feature_compat, 0))
1956 com_err(argv[0], 0, "Unknown feature: %s\n",
1957 argv[i]);
1958 else
1959 ext2fs_mark_super_dirty(current_fs);
1960 }
1961 print_features(current_fs->super, stdout);
1962 }
1963
1964 void do_bmap(int argc, char *argv[])
1965 {
1966 ext2_ino_t ino;
1967 blk64_t blk, pblk;
1968 int err;
1969 errcode_t errcode;
1970
1971 if (common_args_process(argc, argv, 3, 3, argv[0],
1972 "<file> logical_blk", 0))
1973 return;
1974
1975 ino = string_to_inode(argv[1]);
1976 if (!ino)
1977 return;
1978 blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1979
1980 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
1981 if (errcode) {
1982 com_err("argv[0]", errcode,
1983 "while mapping logical block %llu\n", blk);
1984 return;
1985 }
1986 printf("%llu\n", pblk);
1987 }
1988
1989 void do_imap(int argc, char *argv[])
1990 {
1991 ext2_ino_t ino;
1992 unsigned long group, block, block_nr, offset;
1993
1994 if (common_args_process(argc, argv, 2, 2, argv[0],
1995 "<file>", 0))
1996 return;
1997 ino = string_to_inode(argv[1]);
1998 if (!ino)
1999 return;
2000
2001 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2002 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2003 EXT2_INODE_SIZE(current_fs->super);
2004 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2005 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2006 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2007 group);
2008 return;
2009 }
2010 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2011 block;
2012 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2013
2014 printf("Inode %d is part of block group %lu\n"
2015 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2016 block_nr, offset);
2017
2018 }
2019
2020 void do_set_current_time(int argc, char *argv[])
2021 {
2022 time_t now;
2023
2024 if (common_args_process(argc, argv, 2, 2, argv[0],
2025 "<time>", 0))
2026 return;
2027
2028 now = string_to_time(argv[1]);
2029 if (now == ((time_t) -1)) {
2030 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2031 argv[1]);
2032 return;
2033
2034 } else {
2035 printf("Setting current time to %s\n", time_to_string(now));
2036 current_fs->now = now;
2037 }
2038 }
2039
2040 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2041 {
2042 int compat, bit, ret;
2043 unsigned int feature_mask;
2044
2045 if (name) {
2046 if (feature_type == E2P_FS_FEATURE)
2047 ret = e2p_string2feature(name, &compat, &feature_mask);
2048 else
2049 ret = e2p_jrnl_string2feature(name, &compat,
2050 &feature_mask);
2051 if (ret)
2052 return ret;
2053
2054 if (!(supp[compat] & feature_mask))
2055 return 1;
2056 } else {
2057 for (compat = 0; compat < 3; compat++) {
2058 for (bit = 0, feature_mask = 1; bit < 32;
2059 bit++, feature_mask <<= 1) {
2060 if (supp[compat] & feature_mask) {
2061 if (feature_type == E2P_FS_FEATURE)
2062 fprintf(stdout, " %s",
2063 e2p_feature2string(compat,
2064 feature_mask));
2065 else
2066 fprintf(stdout, " %s",
2067 e2p_jrnl_feature2string(compat,
2068 feature_mask));
2069 }
2070 }
2071 }
2072 fprintf(stdout, "\n");
2073 }
2074
2075 return 0;
2076 }
2077
2078 void do_supported_features(int argc, char *argv[])
2079 {
2080 int ret;
2081 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2082 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2083 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2084 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2085 JFS_KNOWN_INCOMPAT_FEATURES,
2086 JFS_KNOWN_ROCOMPAT_FEATURES };
2087
2088 if (argc > 1) {
2089 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2090 if (ret) {
2091 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2092 argv[1]);
2093 }
2094 if (ret)
2095 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2096 else
2097 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2098 } else {
2099 fprintf(stdout, "Supported features:");
2100 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2101 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2102 }
2103 }
2104
2105 void do_punch(int argc, char *argv[])
2106 {
2107 ext2_ino_t ino;
2108 blk64_t start, end;
2109 int err;
2110 errcode_t errcode;
2111
2112 if (common_args_process(argc, argv, 3, 4, argv[0],
2113 "<file> start_blk [end_blk]",
2114 CHECK_FS_RW | CHECK_FS_BITMAPS))
2115 return;
2116
2117 ino = string_to_inode(argv[1]);
2118 if (!ino)
2119 return;
2120 start = parse_ulong(argv[2], argv[0], "logical_block", &err);
2121 if (argc == 4)
2122 end = parse_ulong(argv[3], argv[0], "logical_block", &err);
2123 else
2124 end = ~0;
2125
2126 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2127
2128 if (errcode) {
2129 com_err(argv[0], errcode,
2130 "while truncating inode %u from %llu to %llu\n", ino,
2131 (unsigned long long) start, (unsigned long long) end);
2132 return;
2133 }
2134 }
2135
2136 static int source_file(const char *cmd_file, int sci_idx)
2137 {
2138 FILE *f;
2139 char buf[256];
2140 char *cp;
2141 int exit_status = 0;
2142 int retval;
2143
2144 if (strcmp(cmd_file, "-") == 0)
2145 f = stdin;
2146 else {
2147 f = fopen(cmd_file, "r");
2148 if (!f) {
2149 perror(cmd_file);
2150 exit(1);
2151 }
2152 }
2153 fflush(stdout);
2154 fflush(stderr);
2155 setbuf(stdout, NULL);
2156 setbuf(stderr, NULL);
2157 while (!feof(f)) {
2158 if (fgets(buf, sizeof(buf), f) == NULL)
2159 break;
2160 cp = strchr(buf, '\n');
2161 if (cp)
2162 *cp = 0;
2163 cp = strchr(buf, '\r');
2164 if (cp)
2165 *cp = 0;
2166 printf("debugfs: %s\n", buf);
2167 retval = ss_execute_line(sci_idx, buf);
2168 if (retval) {
2169 ss_perror(sci_idx, retval, buf);
2170 exit_status++;
2171 }
2172 }
2173 if (f != stdin)
2174 fclose(f);
2175 return exit_status;
2176 }
2177
2178 int main(int argc, char **argv)
2179 {
2180 int retval;
2181 int sci_idx;
2182 const char *usage = "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
2183 int c;
2184 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2185 char *request = 0;
2186 int exit_status = 0;
2187 char *cmd_file = 0;
2188 blk64_t superblock = 0;
2189 blk64_t blocksize = 0;
2190 int catastrophic = 0;
2191 char *data_filename = 0;
2192
2193 if (debug_prog_name == 0)
2194 debug_prog_name = "debugfs";
2195
2196 add_error_table(&et_ext2_error_table);
2197 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2198 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2199
2200 while ((c = getopt (argc, argv, "iwcR:f:b:s:Vd:D")) != EOF) {
2201 switch (c) {
2202 case 'R':
2203 request = optarg;
2204 break;
2205 case 'f':
2206 cmd_file = optarg;
2207 break;
2208 case 'd':
2209 data_filename = optarg;
2210 break;
2211 case 'i':
2212 open_flags |= EXT2_FLAG_IMAGE_FILE;
2213 break;
2214 case 'w':
2215 open_flags |= EXT2_FLAG_RW;
2216 break;
2217 case 'D':
2218 open_flags |= EXT2_FLAG_DIRECT_IO;
2219 break;
2220 case 'b':
2221 blocksize = parse_ulong(optarg, argv[0],
2222 "block size", 0);
2223 break;
2224 case 's':
2225 superblock = parse_ulong(optarg, argv[0],
2226 "superblock number", 0);
2227 break;
2228 case 'c':
2229 catastrophic = 1;
2230 break;
2231 case 'V':
2232 /* Print version number and exit */
2233 fprintf(stderr, "\tUsing %s\n",
2234 error_message(EXT2_ET_BASE));
2235 exit(0);
2236 default:
2237 com_err(argv[0], 0, usage, debug_prog_name);
2238 return 1;
2239 }
2240 }
2241 if (optind < argc)
2242 open_filesystem(argv[optind], open_flags,
2243 superblock, blocksize, catastrophic,
2244 data_filename);
2245
2246 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2247 &debug_cmds, &retval);
2248 if (retval) {
2249 ss_perror(sci_idx, retval, "creating invocation");
2250 exit(1);
2251 }
2252 ss_get_readline(sci_idx);
2253
2254 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2255 if (retval) {
2256 ss_perror(sci_idx, retval, "adding standard requests");
2257 exit (1);
2258 }
2259 if (extra_cmds)
2260 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2261 if (retval) {
2262 ss_perror(sci_idx, retval, "adding extra requests");
2263 exit (1);
2264 }
2265 if (request) {
2266 retval = 0;
2267 retval = ss_execute_line(sci_idx, request);
2268 if (retval) {
2269 ss_perror(sci_idx, retval, request);
2270 exit_status++;
2271 }
2272 } else if (cmd_file) {
2273 exit_status = source_file(cmd_file, sci_idx);
2274 } else {
2275 ss_listen(sci_idx);
2276 }
2277
2278 ss_delete_invocation(sci_idx);
2279
2280 if (current_fs)
2281 close_filesystem();
2282
2283 remove_error_table(&et_ext2_error_table);
2284 return exit_status;
2285 }
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