]> git.ipfire.org Git - thirdparty/e2fsprogs.git/blob - debugfs/debugfs.c
projects / thirdparty / e2fsprogs.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
debugfs.c (internal_dump_inode): Display the major/minor device
[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 "../version.h"
37
38 extern ss_request_table debug_cmds;
39
40 ext2_filsys current_fs = NULL;
41 ext2_ino_t root, cwd;
42
43 static void open_filesystem(char *device, int open_flags, blk_t superblock,
44 blk_t blocksize, int catastrophic)
45 {
46 int retval;
47
48 if (superblock != 0 && blocksize == 0) {
49 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
50 current_fs = NULL;
51 return;
52 }
53
54 if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
55 com_err(device, 0,
56 "opening read-only because of catastrophic mode");
57 open_flags &= ~EXT2_FLAG_RW;
58 }
59
60 retval = ext2fs_open(device, open_flags, superblock, blocksize,
61 unix_io_manager, &current_fs);
62 if (retval) {
63 com_err(device, retval, "while opening filesystem");
64 current_fs = NULL;
65 return;
66 }
67
68 if (catastrophic)
69 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
70 else {
71 retval = ext2fs_read_inode_bitmap(current_fs);
72 if (retval) {
73 com_err(device, retval, "while reading inode bitmap");
74 goto errout;
75 }
76 retval = ext2fs_read_block_bitmap(current_fs);
77 if (retval) {
78 com_err(device, retval, "while reading block bitmap");
79 goto errout;
80 }
81 }
82 root = cwd = EXT2_ROOT_INO;
83 return;
84
85 errout:
86 retval = ext2fs_close(current_fs);
87 if (retval)
88 com_err(device, retval, "while trying to close filesystem");
89 current_fs = NULL;
90 }
91
92 void do_open_filesys(int argc, char **argv)
93 {
94 const char *usage = "Usage: open [-s superblock] [-b blocksize] [-c] [-w] <device>";
95 int c, err;
96 int catastrophic = 0;
97 blk_t superblock = 0;
98 blk_t blocksize = 0;
99 int open_flags = 0;
100
101 reset_getopt();
102 while ((c = getopt (argc, argv, "iwfcb:s:")) != EOF) {
103 switch (c) {
104 case 'i':
105 open_flags |= EXT2_FLAG_IMAGE_FILE;
106 break;
107 case 'w':
108 open_flags |= EXT2_FLAG_RW;
109 break;
110 case 'f':
111 open_flags |= EXT2_FLAG_FORCE;
112 break;
113 case 'c':
114 catastrophic = 1;
115 break;
116 case 'b':
117 blocksize = parse_ulong(optarg, argv[0],
118 "block size", &err);
119 if (err)
120 return;
121 break;
122 case 's':
123 superblock = parse_ulong(optarg, argv[0],
124 "superblock number", &err);
125 if (err)
126 return;
127 break;
128 default:
129 com_err(argv[0], 0, usage);
130 return;
131 }
132 }
133 if (optind != argc-1) {
134 com_err(argv[0], 0, usage);
135 return;
136 }
137 if (check_fs_not_open(argv[0]))
138 return;
139 open_filesystem(argv[optind], open_flags,
140 superblock, blocksize, catastrophic);
141 }
142
143 void do_lcd(int argc, char **argv)
144 {
145 if (common_args_process(argc, argv, 2, 2, "lcd",
146 "<native dir>", 0))
147 return;
148
149 if (chdir(argv[1]) == -1) {
150 com_err(argv[0], errno,
151 "while trying to change native directory to %s",
152 argv[1]);
153 return;
154 }
155 }
156
157 static void close_filesystem(NOARGS)
158 {
159 int retval;
160
161 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
162 retval = ext2fs_write_inode_bitmap(current_fs);
163 if (retval)
164 com_err("ext2fs_write_inode_bitmap", retval, "");
165 }
166 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
167 retval = ext2fs_write_block_bitmap(current_fs);
168 if (retval)
169 com_err("ext2fs_write_block_bitmap", retval, "");
170 }
171 retval = ext2fs_close(current_fs);
172 if (retval)
173 com_err("ext2fs_close", retval, "");
174 current_fs = NULL;
175 return;
176 }
177
178 void do_close_filesys(int argc, char **argv)
179 {
180 if (common_args_process(argc, argv, 1, 1, "close_filesys", "", 0))
181 return;
182 close_filesystem();
183 }
184
185 void do_init_filesys(int argc, char **argv)
186 {
187 struct ext2_super_block param;
188 errcode_t retval;
189 int err;
190
191 if (common_args_process(argc, argv, 3, 3, "initialize",
192 "<device> <blocksize>", CHECK_FS_NOTOPEN))
193 return;
194
195 memset(&param, 0, sizeof(struct ext2_super_block));
196 param.s_blocks_count = parse_ulong(argv[2], argv[0],
197 "blocks count", &err);
198 if (err)
199 return;
200 retval = ext2fs_initialize(argv[1], 0, &param,
201 unix_io_manager, &current_fs);
202 if (retval) {
203 com_err(argv[1], retval, "while initializing filesystem");
204 current_fs = NULL;
205 return;
206 }
207 root = cwd = EXT2_ROOT_INO;
208 return;
209 }
210
211 static void print_features(struct ext2_super_block * s, FILE *f)
212 {
213 int i, j, printed=0;
214 __u32 *mask = &s->s_feature_compat, m;
215
216 fputs("Filesystem features:", f);
217 for (i=0; i <3; i++,mask++) {
218 for (j=0,m=1; j < 32; j++, m<<=1) {
219 if (*mask & m) {
220 fprintf(f, " %s", e2p_feature2string(i, m));
221 printed++;
222 }
223 }
224 }
225 if (printed == 0)
226 fputs("(none)", f);
227 fputs("\n", f);
228 }
229
230 void do_show_super_stats(int argc, char *argv[])
231 {
232 dgrp_t i;
233 FILE *out;
234 struct ext2_group_desc *gdp;
235 int c, header_only = 0;
236 int numdirs = 0;
237 const char *usage = "Usage: show_super [-h]";
238
239 reset_getopt();
240 while ((c = getopt (argc, argv, "h")) != EOF) {
241 switch (c) {
242 case 'h':
243 header_only++;
244 break;
245 default:
246 com_err(argv[0], 0, usage);
247 return;
248 }
249 }
250 if (optind != argc) {
251 com_err(argv[0], 0, usage);
252 return;
253 }
254 if (check_fs_open(argv[0]))
255 return;
256 out = open_pager();
257
258 list_super2(current_fs->super, out);
259 for (i=0; i < current_fs->group_desc_count; i++)
260 numdirs += current_fs->group_desc[i].bg_used_dirs_count;
261 fprintf(out, "Directories: %d\n", numdirs);
262
263 if (header_only) {
264 close_pager(out);
265 return;
266 }
267
268 gdp = &current_fs->group_desc[0];
269 for (i = 0; i < current_fs->group_desc_count; i++, gdp++)
270 fprintf(out, " Group %2d: block bitmap at %d, "
271 "inode bitmap at %d, "
272 "inode table at %d\n"
273 " %d free %s, "
274 "%d free %s, "
275 "%d used %s\n",
276 i, gdp->bg_block_bitmap,
277 gdp->bg_inode_bitmap, gdp->bg_inode_table,
278 gdp->bg_free_blocks_count,
279 gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
280 gdp->bg_free_inodes_count,
281 gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
282 gdp->bg_used_dirs_count,
283 gdp->bg_used_dirs_count != 1 ? "directories"
284 : "directory");
285 close_pager(out);
286 }
287
288 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
289 char **argv EXT2FS_ATTR((unused)))
290 {
291 if (check_fs_open(argv[0]))
292 return;
293 if (check_fs_read_write(argv[0]))
294 return;
295
296 if (argv[1] && !strcmp(argv[1], "-clean"))
297 current_fs->super->s_state |= EXT2_VALID_FS;
298 else
299 current_fs->super->s_state &= ~EXT2_VALID_FS;
300 ext2fs_mark_super_dirty(current_fs);
301 }
302
303 struct list_blocks_struct {
304 FILE *f;
305 e2_blkcnt_t total;
306 blk_t first_block, last_block;
307 e2_blkcnt_t first_bcnt, last_bcnt;
308 e2_blkcnt_t first;
309 };
310
311 static void finish_range(struct list_blocks_struct *lb)
312 {
313 if (lb->first_block == 0)
314 return;
315 if (lb->first)
316 lb->first = 0;
317 else
318 fprintf(lb->f, ", ");
319 if (lb->first_block == lb->last_block)
320 fprintf(lb->f, "(%lld):%d", lb->first_bcnt, lb->first_block);
321 else
322 fprintf(lb->f, "(%lld-%lld):%d-%d", lb->first_bcnt,
323 lb->last_bcnt, lb->first_block, lb->last_block);
324 lb->first_block = 0;
325 }
326
327 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
328 blk_t *blocknr, e2_blkcnt_t blockcnt,
329 blk_t ref_block EXT2FS_ATTR((unused)),
330 int ref_offset EXT2FS_ATTR((unused)),
331 void *private)
332 {
333 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
334
335 lb->total++;
336 if (blockcnt >= 0) {
337 /*
338 * See if we can add on to the existing range (if it exists)
339 */
340 if (lb->first_block &&
341 (lb->last_block+1 == *blocknr) &&
342 (lb->last_bcnt+1 == blockcnt)) {
343 lb->last_block = *blocknr;
344 lb->last_bcnt = blockcnt;
345 return 0;
346 }
347 /*
348 * Start a new range.
349 */
350 finish_range(lb);
351 lb->first_block = lb->last_block = *blocknr;
352 lb->first_bcnt = lb->last_bcnt = blockcnt;
353 return 0;
354 }
355 /*
356 * Not a normal block. Always force a new range.
357 */
358 finish_range(lb);
359 if (lb->first)
360 lb->first = 0;
361 else
362 fprintf(lb->f, ", ");
363 if (blockcnt == -1)
364 fprintf(lb->f, "(IND):%d", *blocknr);
365 else if (blockcnt == -2)
366 fprintf(lb->f, "(DIND):%d", *blocknr);
367 else if (blockcnt == -3)
368 fprintf(lb->f, "(TIND):%d", *blocknr);
369 return 0;
370 }
371
372
373 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
374 {
375 struct list_blocks_struct lb;
376
377 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
378 lb.total = 0;
379 lb.first_block = 0;
380 lb.f = f;
381 lb.first = 1;
382 ext2fs_block_iterate2(current_fs, inode, 0, NULL,
383 list_blocks_proc, (void *)&lb);
384 finish_range(&lb);
385 if (lb.total)
386 fprintf(f, "\n%sTOTAL: %lld\n", prefix, lb.total);
387 fprintf(f,"\n");
388 }
389
390
391 void internal_dump_inode(FILE *out, const char *prefix,
392 ext2_ino_t inode_num, struct ext2_inode *inode,
393 int do_dump_blocks)
394 {
395 const char *i_type;
396 char frag, fsize;
397 int os = current_fs->super->s_creator_os;
398
399 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
400 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
401 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
402 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
403 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
404 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
405 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
406 else i_type = "bad type";
407 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
408 fprintf(out, "%sMode: %04o Flags: 0x%x Generation: %u\n",
409 prefix,
410 inode->i_mode & 0777, inode->i_flags, inode->i_generation);
411 fprintf(out, "%sUser: %5d Group: %5d Size: ",
412 prefix, inode->i_uid, inode->i_gid);
413 if (LINUX_S_ISREG(inode->i_mode)) {
414 __u64 i_size = (inode->i_size |
415 ((unsigned long long)inode->i_size_high << 32));
416
417 fprintf(out, "%lld\n", i_size);
418 } else
419 fprintf(out, "%d\n", inode->i_size);
420 if (current_fs->super->s_creator_os == EXT2_OS_HURD)
421 fprintf(out,
422 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
423 prefix,
424 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
425 inode->osd1.hurd1.h_i_translator);
426 else
427 fprintf(out, "%sFile ACL: %d Directory ACL: %d\n",
428 prefix,
429 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
430 fprintf(out, "%sLinks: %d Blockcount: %d\n",
431 prefix, inode->i_links_count, inode->i_blocks);
432 switch (os) {
433 case EXT2_OS_LINUX:
434 frag = inode->osd2.linux2.l_i_frag;
435 fsize = inode->osd2.linux2.l_i_fsize;
436 break;
437 case EXT2_OS_HURD:
438 frag = inode->osd2.hurd2.h_i_frag;
439 fsize = inode->osd2.hurd2.h_i_fsize;
440 break;
441 case EXT2_OS_MASIX:
442 frag = inode->osd2.masix2.m_i_frag;
443 fsize = inode->osd2.masix2.m_i_fsize;
444 break;
445 default:
446 frag = fsize = 0;
447 }
448 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
449 prefix, inode->i_faddr, frag, fsize);
450 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
451 time_to_string(inode->i_ctime));
452 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
453 time_to_string(inode->i_atime));
454 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
455 time_to_string(inode->i_mtime));
456 if (inode->i_dtime)
457 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
458 time_to_string(inode->i_dtime));
459 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_inode_data_blocks(current_fs,inode) == 0)
460 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
461 (int) inode->i_size, (char *)inode->i_block);
462 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
463 int major, minor;
464 const char *devnote;
465
466 if (inode->i_block[0]) {
467 major = (inode->i_block[0] >> 8) & 255;
468 minor = inode->i_block[0] & 255;
469 devnote = "";
470 } else {
471 major = (inode->i_block[1] & 0xfff00) >> 8;
472 minor = ((inode->i_block[1] & 0xff) |
473 ((inode->i_block[1] >> 12) & 0xfff00));
474 devnote = "(New-style) ";
475 }
476 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
477 devnote, major, minor, major, minor);
478 }
479 else if (do_dump_blocks)
480 dump_blocks(out, prefix, inode_num);
481 }
482
483 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode inode)
484 {
485 FILE *out;
486
487 out = open_pager();
488 internal_dump_inode(out, "", inode_num, &inode, 1);
489 close_pager(out);
490 }
491
492 void do_stat(int argc, char *argv[])
493 {
494 ext2_ino_t inode;
495 struct ext2_inode inode_buf;
496
497 if (common_inode_args_process(argc, argv, &inode, 0))
498 return;
499
500 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
501 return;
502
503 dump_inode(inode,inode_buf);
504 return;
505 }
506
507 void do_chroot(int argc, char *argv[])
508 {
509 ext2_ino_t inode;
510 int retval;
511
512 if (common_inode_args_process(argc, argv, &inode, 0))
513 return;
514
515 retval = ext2fs_check_directory(current_fs, inode);
516 if (retval) {
517 com_err(argv[1], retval, "");
518 return;
519 }
520 root = inode;
521 }
522
523 void do_clri(int argc, char *argv[])
524 {
525 ext2_ino_t inode;
526 struct ext2_inode inode_buf;
527
528 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
529 return;
530
531 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
532 return;
533 memset(&inode_buf, 0, sizeof(inode_buf));
534 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
535 return;
536 }
537
538 void do_freei(int argc, char *argv[])
539 {
540 ext2_ino_t inode;
541
542 if (common_inode_args_process(argc, argv, &inode,
543 CHECK_FS_RW | CHECK_FS_BITMAPS))
544 return;
545
546 if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
547 com_err(argv[0], 0, "Warning: inode already clear");
548 ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
549 ext2fs_mark_ib_dirty(current_fs);
550 }
551
552 void do_seti(int argc, char *argv[])
553 {
554 ext2_ino_t inode;
555
556 if (common_inode_args_process(argc, argv, &inode,
557 CHECK_FS_RW | CHECK_FS_BITMAPS))
558 return;
559
560 if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
561 com_err(argv[0], 0, "Warning: inode already set");
562 ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
563 ext2fs_mark_ib_dirty(current_fs);
564 }
565
566 void do_testi(int argc, char *argv[])
567 {
568 ext2_ino_t inode;
569
570 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
571 return;
572
573 if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
574 printf("Inode %u is marked in use\n", inode);
575 else
576 printf("Inode %u is not in use\n", inode);
577 }
578
579 void do_freeb(int argc, char *argv[])
580 {
581 blk_t block;
582 int count = 1;
583
584 if (common_block_args_process(argc, argv, &block, &count))
585 return;
586 if (check_fs_read_write(argv[0]))
587 return;
588 while (count-- > 0) {
589 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
590 com_err(argv[0], 0, "Warning: block %d already clear",
591 block);
592 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
593 block++;
594 }
595 ext2fs_mark_bb_dirty(current_fs);
596 }
597
598 void do_setb(int argc, char *argv[])
599 {
600 blk_t block;
601 int count = 1;
602
603 if (common_block_args_process(argc, argv, &block, &count))
604 return;
605 if (check_fs_read_write(argv[0]))
606 return;
607 while (count-- > 0) {
608 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
609 com_err(argv[0], 0, "Warning: block %d already set",
610 block);
611 ext2fs_mark_block_bitmap(current_fs->block_map,block);
612 block++;
613 }
614 ext2fs_mark_bb_dirty(current_fs);
615 }
616
617 void do_testb(int argc, char *argv[])
618 {
619 blk_t block;
620 int count = 1;
621
622 if (common_block_args_process(argc, argv, &block, &count))
623 return;
624 while (count-- > 0) {
625 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
626 printf("Block %d marked in use\n", block);
627 else
628 printf("Block %d not in use\n", block);
629 block++;
630 }
631 }
632
633 static void modify_u8(char *com, const char *prompt,
634 const char *format, __u8 *val)
635 {
636 char buf[200];
637 unsigned long v;
638 char *tmp;
639
640 sprintf(buf, format, *val);
641 printf("%30s [%s] ", prompt, buf);
642 fgets(buf, sizeof(buf), stdin);
643 if (buf[strlen (buf) - 1] == '\n')
644 buf[strlen (buf) - 1] = '\0';
645 if (!buf[0])
646 return;
647 v = strtoul(buf, &tmp, 0);
648 if (*tmp)
649 com_err(com, 0, "Bad value - %s", buf);
650 else
651 *val = v;
652 }
653
654 static void modify_u16(char *com, const char *prompt,
655 const char *format, __u16 *val)
656 {
657 char buf[200];
658 unsigned long v;
659 char *tmp;
660
661 sprintf(buf, format, *val);
662 printf("%30s [%s] ", prompt, buf);
663 fgets(buf, sizeof(buf), stdin);
664 if (buf[strlen (buf) - 1] == '\n')
665 buf[strlen (buf) - 1] = '\0';
666 if (!buf[0])
667 return;
668 v = strtoul(buf, &tmp, 0);
669 if (*tmp)
670 com_err(com, 0, "Bad value - %s", buf);
671 else
672 *val = v;
673 }
674
675 static void modify_u32(char *com, const char *prompt,
676 const char *format, __u32 *val)
677 {
678 char buf[200];
679 unsigned long v;
680 char *tmp;
681
682 sprintf(buf, format, *val);
683 printf("%30s [%s] ", prompt, buf);
684 fgets(buf, sizeof(buf), stdin);
685 if (buf[strlen (buf) - 1] == '\n')
686 buf[strlen (buf) - 1] = '\0';
687 if (!buf[0])
688 return;
689 v = strtoul(buf, &tmp, 0);
690 if (*tmp)
691 com_err(com, 0, "Bad value - %s", buf);
692 else
693 *val = v;
694 }
695
696
697 void do_modify_inode(int argc, char *argv[])
698 {
699 struct ext2_inode inode;
700 ext2_ino_t inode_num;
701 int i;
702 unsigned char *frag, *fsize;
703 char buf[80];
704 int os;
705 const char *hex_format = "0x%x";
706 const char *octal_format = "0%o";
707 const char *decimal_format = "%d";
708
709 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
710 return;
711
712 os = current_fs->super->s_creator_os;
713
714 if (debugfs_read_inode(inode_num, &inode, argv[1]))
715 return;
716
717 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
718 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
719 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
720 modify_u32(argv[0], "Size", decimal_format, &inode.i_size);
721 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
722 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
723 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
724 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
725 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
726 modify_u32(argv[0], "Block count", decimal_format, &inode.i_blocks);
727 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
728 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
729 #if 0
730 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
731 #endif
732 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
733 if (LINUX_S_ISDIR(inode.i_mode))
734 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
735 else
736 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
737
738 if (current_fs->super->s_creator_os == EXT2_OS_HURD)
739 modify_u32(argv[0], "Translator Block",
740 decimal_format, &inode.osd1.hurd1.h_i_translator);
741
742 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
743 switch (os) {
744 case EXT2_OS_LINUX:
745 frag = &inode.osd2.linux2.l_i_frag;
746 fsize = &inode.osd2.linux2.l_i_fsize;
747 break;
748 case EXT2_OS_HURD:
749 frag = &inode.osd2.hurd2.h_i_frag;
750 fsize = &inode.osd2.hurd2.h_i_fsize;
751 break;
752 case EXT2_OS_MASIX:
753 frag = &inode.osd2.masix2.m_i_frag;
754 fsize = &inode.osd2.masix2.m_i_fsize;
755 break;
756 default:
757 frag = fsize = 0;
758 }
759 if (frag)
760 modify_u8(argv[0], "Fragment number", decimal_format, frag);
761 if (fsize)
762 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
763
764 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
765 sprintf(buf, "Direct Block #%d", i);
766 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
767 }
768 modify_u32(argv[0], "Indirect Block", decimal_format,
769 &inode.i_block[EXT2_IND_BLOCK]);
770 modify_u32(argv[0], "Double Indirect Block", decimal_format,
771 &inode.i_block[EXT2_DIND_BLOCK]);
772 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
773 &inode.i_block[EXT2_TIND_BLOCK]);
774 if (debugfs_write_inode(inode_num, &inode, argv[1]))
775 return;
776 }
777
778 void do_change_working_dir(int argc, char *argv[])
779 {
780 ext2_ino_t inode;
781 int retval;
782
783 if (common_inode_args_process(argc, argv, &inode, 0))
784 return;
785
786 retval = ext2fs_check_directory(current_fs, inode);
787 if (retval) {
788 com_err(argv[1], retval, "");
789 return;
790 }
791 cwd = inode;
792 return;
793 }
794
795 void do_print_working_directory(int argc, char *argv[])
796 {
797 int retval;
798 char *pathname = NULL;
799
800 if (common_args_process(argc, argv, 1, 1,
801 "print_working_directory", "", 0))
802 return;
803
804 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
805 if (retval) {
806 com_err(argv[0], retval,
807 "while trying to get pathname of cwd");
808 }
809 printf("[pwd] INODE: %6u PATH: %s\n", cwd, pathname);
810 free(pathname);
811 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
812 if (retval) {
813 com_err(argv[0], retval,
814 "while trying to get pathname of root");
815 }
816 printf("[root] INODE: %6u PATH: %s\n", root, pathname);
817 free(pathname);
818 return;
819 }
820
821 static void make_link(char *sourcename, char *destname)
822 {
823 ext2_ino_t inode;
824 int retval;
825 ext2_ino_t dir;
826 char *dest, *cp, *basename;
827
828 /*
829 * Get the source inode
830 */
831 inode = string_to_inode(sourcename);
832 if (!inode)
833 return;
834 basename = strrchr(sourcename, '/');
835 if (basename)
836 basename++;
837 else
838 basename = sourcename;
839 /*
840 * Figure out the destination. First see if it exists and is
841 * a directory.
842 */
843 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
844 dest = basename;
845 else {
846 /*
847 * OK, it doesn't exist. See if it is
848 * '<dir>/basename' or 'basename'
849 */
850 cp = strrchr(destname, '/');
851 if (cp) {
852 *cp = 0;
853 dir = string_to_inode(destname);
854 if (!dir)
855 return;
856 dest = cp+1;
857 } else {
858 dir = cwd;
859 dest = destname;
860 }
861 }
862
863 retval = ext2fs_link(current_fs, dir, dest, inode, 0);
864 if (retval)
865 com_err("make_link", retval, "");
866 return;
867 }
868
869
870 void do_link(int argc, char *argv[])
871 {
872 if (common_args_process(argc, argv, 3, 3, "link",
873 "<source file> <dest_name>", CHECK_FS_RW))
874 return;
875
876 make_link(argv[1], argv[2]);
877 }
878
879 static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr,
880 int blockcnt EXT2FS_ATTR((unused)),
881 void *private EXT2FS_ATTR((unused)))
882 {
883 blk_t block;
884
885 block = *blocknr;
886 ext2fs_block_alloc_stats(fs, block, +1);
887 return 0;
888 }
889
890 void do_undel(int argc, char *argv[])
891 {
892 ext2_ino_t ino;
893 struct ext2_inode inode;
894
895 if (common_args_process(argc, argv, 3, 3, "undelete",
896 "<inode_num> <dest_name>",
897 CHECK_FS_RW | CHECK_FS_BITMAPS))
898 return;
899
900 ino = string_to_inode(argv[1]);
901 if (!ino)
902 return;
903
904 if (debugfs_read_inode(ino, &inode, argv[1]))
905 return;
906
907 if (ext2fs_test_inode_bitmap(current_fs->inode_map, ino)) {
908 com_err(argv[1], 0, "Inode is not marked as deleted");
909 return;
910 }
911
912 /*
913 * XXX this function doesn't handle changing the links count on the
914 * parent directory when undeleting a directory.
915 */
916 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
917 inode.i_dtime = 0;
918
919 if (debugfs_write_inode(ino, &inode, argv[0]))
920 return;
921
922 ext2fs_block_iterate(current_fs, ino, 0, NULL,
923 mark_blocks_proc, NULL);
924
925 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
926
927 make_link(argv[1], argv[2]);
928 }
929
930 static void unlink_file_by_name(char *filename)
931 {
932 int retval;
933 ext2_ino_t dir;
934 char *basename;
935
936 basename = strrchr(filename, '/');
937 if (basename) {
938 *basename++ = '\0';
939 dir = string_to_inode(filename);
940 if (!dir)
941 return;
942 } else {
943 dir = cwd;
944 basename = filename;
945 }
946 retval = ext2fs_unlink(current_fs, dir, basename, 0, 0);
947 if (retval)
948 com_err("unlink_file_by_name", retval, "");
949 return;
950 }
951
952 void do_unlink(int argc, char *argv[])
953 {
954 if (common_args_process(argc, argv, 2, 2, "link",
955 "<pathname>", CHECK_FS_RW))
956 return;
957
958 unlink_file_by_name(argv[1]);
959 }
960
961 void do_find_free_block(int argc, char *argv[])
962 {
963 blk_t free_blk, goal;
964 int count;
965 errcode_t retval;
966 char *tmp;
967
968 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
969 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
970 return;
971 }
972 if (check_fs_open(argv[0]))
973 return;
974
975 if (argc > 1) {
976 count = strtol(argv[1],&tmp,0);
977 if (*tmp) {
978 com_err(argv[0], 0, "Bad count - %s", argv[1]);
979 return;
980 }
981 } else
982 count = 1;
983
984 if (argc > 2) {
985 goal = strtol(argv[2], &tmp, 0);
986 if (*tmp) {
987 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
988 return;
989 }
990 }
991 else
992 goal = current_fs->super->s_first_data_block;
993
994 printf("Free blocks found: ");
995 free_blk = goal - 1;
996 while (count-- > 0) {
997 retval = ext2fs_new_block(current_fs, free_blk + 1, 0,
998 &free_blk);
999 if (retval) {
1000 com_err("ext2fs_new_block", retval, "");
1001 return;
1002 } else
1003 printf("%d ", free_blk);
1004 }
1005 printf("\n");
1006 }
1007
1008 void do_find_free_inode(int argc, char *argv[])
1009 {
1010 ext2_ino_t free_inode, dir;
1011 int mode;
1012 int retval;
1013 char *tmp;
1014
1015 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1016 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1017 return;
1018 }
1019 if (check_fs_open(argv[0]))
1020 return;
1021
1022 if (argc > 1) {
1023 dir = strtol(argv[1], &tmp, 0);
1024 if (*tmp) {
1025 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1026 return;
1027 }
1028 }
1029 else
1030 dir = root;
1031 if (argc > 2) {
1032 mode = strtol(argv[2], &tmp, 0);
1033 if (*tmp) {
1034 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1035 return;
1036 }
1037 } else
1038 mode = 010755;
1039
1040 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1041 if (retval)
1042 com_err("ext2fs_new_inode", retval, "");
1043 else
1044 printf("Free inode found: %u\n", free_inode);
1045 }
1046
1047 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1048 {
1049 ext2_file_t e2_file;
1050 errcode_t retval;
1051 int got;
1052 unsigned int written;
1053 char buf[8192];
1054 char *ptr;
1055
1056 retval = ext2fs_file_open(current_fs, newfile,
1057 EXT2_FILE_WRITE, &e2_file);
1058 if (retval)
1059 return retval;
1060
1061 while (1) {
1062 got = read(fd, buf, sizeof(buf));
1063 if (got == 0)
1064 break;
1065 if (got < 0) {
1066 retval = errno;
1067 goto fail;
1068 }
1069 ptr = buf;
1070 while (got > 0) {
1071 retval = ext2fs_file_write(e2_file, ptr,
1072 got, &written);
1073 if (retval)
1074 goto fail;
1075
1076 got -= written;
1077 ptr += written;
1078 }
1079 }
1080 retval = ext2fs_file_close(e2_file);
1081 return retval;
1082
1083 fail:
1084 (void) ext2fs_file_close(e2_file);
1085 return retval;
1086 }
1087
1088
1089 void do_write(int argc, char *argv[])
1090 {
1091 int fd;
1092 struct stat statbuf;
1093 ext2_ino_t newfile;
1094 errcode_t retval;
1095 struct ext2_inode inode;
1096
1097 if (common_args_process(argc, argv, 3, 3, "write",
1098 "<native file> <new file>", CHECK_FS_RW))
1099 return;
1100
1101 fd = open(argv[1], O_RDONLY);
1102 if (fd < 0) {
1103 com_err(argv[1], errno, "");
1104 return;
1105 }
1106 if (fstat(fd, &statbuf) < 0) {
1107 com_err(argv[1], errno, "");
1108 close(fd);
1109 return;
1110 }
1111
1112 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1113 if (retval == 0) {
1114 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1115 close(fd);
1116 return;
1117 }
1118
1119 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1120 if (retval) {
1121 com_err(argv[0], retval, "");
1122 close(fd);
1123 return;
1124 }
1125 printf("Allocated inode: %u\n", newfile);
1126 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1127 EXT2_FT_REG_FILE);
1128 if (retval == EXT2_ET_DIR_NO_SPACE) {
1129 retval = ext2fs_expand_dir(current_fs, cwd);
1130 if (retval) {
1131 com_err(argv[0], retval, "while expanding directory");
1132 return;
1133 }
1134 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1135 EXT2_FT_REG_FILE);
1136 }
1137 if (retval) {
1138 com_err(argv[2], retval, "");
1139 close(fd);
1140 return;
1141 }
1142 if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1143 com_err(argv[0], 0, "Warning: inode already set");
1144 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1145 memset(&inode, 0, sizeof(inode));
1146 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1147 inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1148 inode.i_links_count = 1;
1149 inode.i_size = statbuf.st_size;
1150 if (debugfs_write_inode(newfile, &inode, argv[0])) {
1151 close(fd);
1152 return;
1153 }
1154 if (LINUX_S_ISREG(inode.i_mode)) {
1155 retval = copy_file(fd, newfile);
1156 if (retval)
1157 com_err("copy_file", retval, "");
1158 }
1159 close(fd);
1160 }
1161
1162 void do_mknod(int argc, char *argv[])
1163 {
1164 unsigned long mode, major, minor;
1165 ext2_ino_t newfile;
1166 errcode_t retval;
1167 struct ext2_inode inode;
1168 int filetype, nr;
1169
1170 if (check_fs_open(argv[0]))
1171 return;
1172 if (argc < 3 || argv[2][1]) {
1173 usage:
1174 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1175 return;
1176 }
1177 mode = minor = major = 0;
1178 switch (argv[2][0]) {
1179 case 'p':
1180 mode = LINUX_S_IFIFO;
1181 filetype = EXT2_FT_FIFO;
1182 nr = 3;
1183 break;
1184 case 'c':
1185 mode = LINUX_S_IFCHR;
1186 filetype = EXT2_FT_CHRDEV;
1187 nr = 5;
1188 break;
1189 case 'b':
1190 mode = LINUX_S_IFBLK;
1191 filetype = EXT2_FT_BLKDEV;
1192 nr = 5;
1193 break;
1194 default:
1195 filetype = 0;
1196 nr = 0;
1197 }
1198 if (nr == 5) {
1199 major = strtoul(argv[3], argv+3, 0);
1200 minor = strtoul(argv[4], argv+4, 0);
1201 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1202 nr = 0;
1203 }
1204 if (argc != nr)
1205 goto usage;
1206 if (check_fs_read_write(argv[0]))
1207 return;
1208 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1209 if (retval) {
1210 com_err(argv[0], retval, "");
1211 return;
1212 }
1213 printf("Allocated inode: %u\n", newfile);
1214 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1215 if (retval == EXT2_ET_DIR_NO_SPACE) {
1216 retval = ext2fs_expand_dir(current_fs, cwd);
1217 if (retval) {
1218 com_err(argv[0], retval, "while expanding directory");
1219 return;
1220 }
1221 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1222 filetype);
1223 }
1224 if (retval) {
1225 com_err(argv[1], retval, "");
1226 return;
1227 }
1228 if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1229 com_err(argv[0], 0, "Warning: inode already set");
1230 ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1231 ext2fs_mark_ib_dirty(current_fs);
1232 memset(&inode, 0, sizeof(inode));
1233 inode.i_mode = mode;
1234 inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1235 if ((major < 256) && (minor < 256)) {
1236 inode.i_block[0] = major*256+minor;
1237 inode.i_block[1] = 0;
1238 } else {
1239 inode.i_block[0] = 0;
1240 inode.i_block[1] = (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
1241 }
1242 inode.i_links_count = 1;
1243 if (debugfs_write_inode(newfile, &inode, argv[0]))
1244 return;
1245 }
1246
1247 void do_mkdir(int argc, char *argv[])
1248 {
1249 char *cp;
1250 ext2_ino_t parent;
1251 char *name;
1252 errcode_t retval;
1253
1254 if (common_args_process(argc, argv, 2, 2, "mkdir",
1255 "<filename>", CHECK_FS_RW))
1256 return;
1257
1258 cp = strrchr(argv[1], '/');
1259 if (cp) {
1260 *cp = 0;
1261 parent = string_to_inode(argv[1]);
1262 if (!parent) {
1263 com_err(argv[1], ENOENT, "");
1264 return;
1265 }
1266 name = cp+1;
1267 } else {
1268 parent = cwd;
1269 name = argv[1];
1270 }
1271
1272 try_again:
1273 retval = ext2fs_mkdir(current_fs, parent, 0, name);
1274 if (retval == EXT2_ET_DIR_NO_SPACE) {
1275 retval = ext2fs_expand_dir(current_fs, parent);
1276 if (retval) {
1277 com_err("argv[0]", retval, "while expanding directory");
1278 return;
1279 }
1280 goto try_again;
1281 }
1282 if (retval) {
1283 com_err("ext2fs_mkdir", retval, "");
1284 return;
1285 }
1286
1287 }
1288
1289 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1290 int blockcnt EXT2FS_ATTR((unused)),
1291 void *private EXT2FS_ATTR((unused)))
1292 {
1293 blk_t block;
1294
1295 block = *blocknr;
1296 ext2fs_block_alloc_stats(fs, block, -1);
1297 return 0;
1298 }
1299
1300 static void kill_file_by_inode(ext2_ino_t inode)
1301 {
1302 struct ext2_inode inode_buf;
1303
1304 if (debugfs_read_inode(inode, &inode_buf, 0))
1305 return;
1306 inode_buf.i_dtime = time(NULL);
1307 if (debugfs_write_inode(inode, &inode_buf, 0))
1308 return;
1309
1310 ext2fs_block_iterate(current_fs, inode, 0, NULL,
1311 release_blocks_proc, NULL);
1312 printf("\n");
1313 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1314 LINUX_S_ISDIR(inode_buf.i_mode));
1315 }
1316
1317
1318 void do_kill_file(int argc, char *argv[])
1319 {
1320 ext2_ino_t inode_num;
1321
1322 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1323 return;
1324
1325 kill_file_by_inode(inode_num);
1326 }
1327
1328 void do_rm(int argc, char *argv[])
1329 {
1330 int retval;
1331 ext2_ino_t inode_num;
1332 struct ext2_inode inode;
1333
1334 if (common_args_process(argc, argv, 2, 2, "rm",
1335 "<filename>", CHECK_FS_RW))
1336 return;
1337
1338 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1339 if (retval) {
1340 com_err(argv[0], retval, "while trying to resolve filename");
1341 return;
1342 }
1343
1344 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1345 return;
1346
1347 if (LINUX_S_ISDIR(inode.i_mode)) {
1348 com_err(argv[0], 0, "file is a directory");
1349 return;
1350 }
1351
1352 --inode.i_links_count;
1353 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1354 return;
1355
1356 unlink_file_by_name(argv[1]);
1357 if (inode.i_links_count == 0)
1358 kill_file_by_inode(inode_num);
1359 }
1360
1361 struct rd_struct {
1362 ext2_ino_t parent;
1363 int empty;
1364 };
1365
1366 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1367 int entry EXT2FS_ATTR((unused)),
1368 struct ext2_dir_entry *dirent,
1369 int offset EXT2FS_ATTR((unused)),
1370 int blocksize EXT2FS_ATTR((unused)),
1371 char *buf EXT2FS_ATTR((unused)),
1372 void *private)
1373 {
1374 struct rd_struct *rds = (struct rd_struct *) private;
1375
1376 if (dirent->inode == 0)
1377 return 0;
1378 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1379 return 0;
1380 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1381 (dirent->name[1] == '.')) {
1382 rds->parent = dirent->inode;
1383 return 0;
1384 }
1385 rds->empty = 0;
1386 return 0;
1387 }
1388
1389 void do_rmdir(int argc, char *argv[])
1390 {
1391 int retval;
1392 ext2_ino_t inode_num;
1393 struct ext2_inode inode;
1394 struct rd_struct rds;
1395
1396 if (common_args_process(argc, argv, 2, 2, "rmdir",
1397 "<filename>", CHECK_FS_RW))
1398 return;
1399
1400 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1401 if (retval) {
1402 com_err(argv[0], retval, "while trying to resolve filename");
1403 return;
1404 }
1405
1406 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1407 return;
1408
1409 if (!LINUX_S_ISDIR(inode.i_mode)) {
1410 com_err(argv[0], 0, "file is not a directory");
1411 return;
1412 }
1413
1414 rds.parent = 0;
1415 rds.empty = 1;
1416
1417 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1418 0, rmdir_proc, &rds);
1419 if (retval) {
1420 com_err(argv[0], retval, "while iterating over directory");
1421 return;
1422 }
1423 if (rds.empty == 0) {
1424 com_err(argv[0], 0, "directory not empty");
1425 return;
1426 }
1427
1428 inode.i_links_count = 0;
1429 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1430 return;
1431
1432 unlink_file_by_name(argv[1]);
1433 kill_file_by_inode(inode_num);
1434
1435 if (rds.parent) {
1436 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1437 return;
1438 if (inode.i_links_count > 1)
1439 inode.i_links_count--;
1440 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1441 return;
1442 }
1443 }
1444
1445 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1446 char *argv[] EXT2FS_ATTR((unused)))
1447 {
1448 FILE *out = stdout;
1449
1450 if (current_fs)
1451 fprintf(out, "Open mode: read-%s\n",
1452 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1453 fprintf(out, "Filesystem in use: %s\n",
1454 current_fs ? current_fs->device_name : "--none--");
1455 }
1456
1457 void do_expand_dir(int argc, char *argv[])
1458 {
1459 ext2_ino_t inode;
1460 int retval;
1461
1462 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1463 return;
1464
1465 retval = ext2fs_expand_dir(current_fs, inode);
1466 if (retval)
1467 com_err("ext2fs_expand_dir", retval, "");
1468 return;
1469 }
1470
1471 void do_features(int argc, char *argv[])
1472 {
1473 int i;
1474
1475 if (check_fs_open(argv[0]))
1476 return;
1477
1478 if ((argc != 1) && check_fs_read_write(argv[0]))
1479 return;
1480 for (i=1; i < argc; i++) {
1481 if (e2p_edit_feature(argv[i],
1482 &current_fs->super->s_feature_compat, 0))
1483 com_err(argv[0], 0, "Unknown feature: %s\n",
1484 argv[i]);
1485 else
1486 ext2fs_mark_super_dirty(current_fs);
1487 }
1488 print_features(current_fs->super, stdout);
1489 }
1490
1491 void do_bmap(int argc, char *argv[])
1492 {
1493 ext2_ino_t ino;
1494 blk_t blk, pblk;
1495 int err;
1496 errcode_t errcode;
1497
1498 if (common_args_process(argc, argv, 3, 3, argv[0],
1499 "<file> logical_blk", 0))
1500 return;
1501
1502 ino = string_to_inode(argv[1]);
1503 if (!ino)
1504 return;
1505 blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1506
1507 errcode = ext2fs_bmap(current_fs, ino, 0, 0, 0, blk, &pblk);
1508 if (errcode) {
1509 com_err("argv[0]", errcode,
1510 "while mapping logical block %d\n", blk);
1511 return;
1512 }
1513 printf("%d\n", pblk);
1514 }
1515
1516 void do_imap(int argc, char *argv[])
1517 {
1518 ext2_ino_t ino;
1519 unsigned long group, block, block_nr, offset;
1520
1521 if (common_args_process(argc, argv, 2, 2, argv[0],
1522 "<file>", 0))
1523 return;
1524 ino = string_to_inode(argv[1]);
1525 if (!ino)
1526 return;
1527
1528 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1529 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1530 EXT2_INODE_SIZE(current_fs->super);
1531 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1532 if (!current_fs->group_desc[(unsigned)group].bg_inode_table) {
1533 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1534 group);
1535 return;
1536 }
1537 block_nr = current_fs->group_desc[(unsigned)group].bg_inode_table +
1538 block;
1539 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1540
1541 printf("Inode %d is part of block group %lu\n"
1542 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1543 block_nr, offset);
1544
1545 }
1546
1547
1548
1549 static int source_file(const char *cmd_file, int sci_idx)
1550 {
1551 FILE *f;
1552 char buf[256];
1553 char *cp;
1554 int exit_status = 0;
1555 int retval;
1556
1557 if (strcmp(cmd_file, "-") == 0)
1558 f = stdin;
1559 else {
1560 f = fopen(cmd_file, "r");
1561 if (!f) {
1562 perror(cmd_file);
1563 exit(1);
1564 }
1565 }
1566 setbuf(stdout, NULL);
1567 setbuf(stderr, NULL);
1568 while (!feof(f)) {
1569 if (fgets(buf, sizeof(buf), f) == NULL)
1570 break;
1571 cp = strchr(buf, '\n');
1572 if (cp)
1573 *cp = 0;
1574 cp = strchr(buf, '\r');
1575 if (cp)
1576 *cp = 0;
1577 printf("debugfs: %s\n", buf);
1578 retval = ss_execute_line(sci_idx, buf);
1579 if (retval) {
1580 ss_perror(sci_idx, retval, buf);
1581 exit_status++;
1582 }
1583 }
1584 return exit_status;
1585 }
1586
1587 int main(int argc, char **argv)
1588 {
1589 int retval;
1590 int sci_idx;
1591 const char *usage = "Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1592 int c;
1593 int open_flags = 0;
1594 char *request = 0;
1595 int exit_status = 0;
1596 char *cmd_file = 0;
1597 blk_t superblock = 0;
1598 blk_t blocksize = 0;
1599 int catastrophic = 0;
1600
1601 initialize_ext2_error_table();
1602 fprintf (stderr, "debugfs %s (%s)\n", E2FSPROGS_VERSION,
1603 E2FSPROGS_DATE);
1604
1605 while ((c = getopt (argc, argv, "iwcR:f:b:s:V")) != EOF) {
1606 switch (c) {
1607 case 'R':
1608 request = optarg;
1609 break;
1610 case 'f':
1611 cmd_file = optarg;
1612 break;
1613 case 'i':
1614 open_flags |= EXT2_FLAG_IMAGE_FILE;
1615 break;
1616 case 'w':
1617 open_flags |= EXT2_FLAG_RW;
1618 break;
1619 case 'b':
1620 blocksize = parse_ulong(optarg, argv[0],
1621 "block size", 0);
1622 break;
1623 case 's':
1624 superblock = parse_ulong(optarg, argv[0],
1625 "superblock number", 0);
1626 break;
1627 case 'c':
1628 catastrophic = 1;
1629 break;
1630 case 'V':
1631 /* Print version number and exit */
1632 fprintf(stderr, "\tUsing %s\n",
1633 error_message(EXT2_ET_BASE));
1634 exit(0);
1635 default:
1636 com_err(argv[0], 0, usage);
1637 return 1;
1638 }
1639 }
1640 if (optind < argc)
1641 open_filesystem(argv[optind], open_flags,
1642 superblock, blocksize, catastrophic);
1643
1644 sci_idx = ss_create_invocation("debugfs", "0.0", (char *) NULL,
1645 &debug_cmds, &retval);
1646 if (retval) {
1647 ss_perror(sci_idx, retval, "creating invocation");
1648 exit(1);
1649 }
1650 ss_get_readline(sci_idx);
1651
1652 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
1653 if (retval) {
1654 ss_perror(sci_idx, retval, "adding standard requests");
1655 exit (1);
1656 }
1657 if (request) {
1658 retval = 0;
1659 retval = ss_execute_line(sci_idx, request);
1660 if (retval) {
1661 ss_perror(sci_idx, retval, request);
1662 exit_status++;
1663 }
1664 } else if (cmd_file) {
1665 exit_status = source_file(cmd_file, sci_idx);
1666 } else {
1667 ss_listen(sci_idx);
1668 }
1669
1670 if (current_fs)
1671 close_filesystem();
1672
1673 return exit_status;
1674 }
Unnamed repository; edit this file 'description' to name the repository.