2 * debugfs.c --- a program which allows you to attach an ext2fs
3 * filesystem and play with it.
5 * Copyright (C) 1993 Theodore Ts'o. This file may be redistributed
6 * under the terms of the GNU Public License.
8 * Modifications by Robert Sanders <gt8134b@prism.gatech.edu>
24 extern int optreset
; /* defined by BSD, but not others */
30 #include <sys/types.h>
33 #include "et/com_err.h"
36 #include "uuid/uuid.h"
39 #include "../version.h"
41 extern ss_request_table debug_cmds
;
43 ext2_filsys current_fs
= NULL
;
46 static void open_filesystem(char *device
, int open_flags
, blk_t superblock
,
47 blk_t blocksize
, int catastrophic
)
51 if (superblock
!= 0 && blocksize
== 0) {
52 com_err(device
, 0, "if you specify the superblock, you must also specify the block size");
57 if (catastrophic
&& (open_flags
& EXT2_FLAG_RW
)) {
59 "opening read-only because of catastrophic mode");
60 open_flags
&= ~EXT2_FLAG_RW
;
63 retval
= ext2fs_open(device
, open_flags
, superblock
, blocksize
,
64 unix_io_manager
, ¤t_fs
);
66 com_err(device
, retval
, "while opening filesystem");
72 com_err(device
, 0, "catastrophic mode - not reading inode or group bitmaps");
74 retval
= ext2fs_read_inode_bitmap(current_fs
);
76 com_err(device
, retval
, "while reading inode bitmap");
79 retval
= ext2fs_read_block_bitmap(current_fs
);
81 com_err(device
, retval
, "while reading block bitmap");
85 root
= cwd
= EXT2_ROOT_INO
;
89 retval
= ext2fs_close(current_fs
);
91 com_err(device
, retval
, "while trying to close filesystem");
95 void do_open_filesys(int argc
, char **argv
)
97 const char *usage
= "Usage: open [-s superblock] [-b blocksize] [-c] [-w] <device>";
100 blk_t superblock
= 0;
107 optreset
= 1; /* Makes BSD getopt happy */
109 while ((c
= getopt (argc
, argv
, "wfcb:s:")) != EOF
) {
112 open_flags
|= EXT2_FLAG_RW
;
115 open_flags
|= EXT2_FLAG_FORCE
;
121 blocksize
= strtoul(optarg
, &tmp
, 0);
124 "Bad block size - %s", optarg
);
129 superblock
= strtoul(optarg
, &tmp
, 0);
132 "Bad superblock number - %s", optarg
);
137 com_err(argv
[0], 0, usage
);
141 if (optind
!= argc
-1) {
142 com_err(argv
[0], 0, usage
);
145 if (check_fs_not_open(argv
[0]))
147 open_filesystem(argv
[optind
], open_flags
,
148 superblock
, blocksize
, catastrophic
);
151 void do_lcd(int argc
, char **argv
)
153 const char *usage
= "Usage: lcd <native dir>";
156 com_err(argv
[0], 0, usage
);
160 if (chdir(argv
[1]) == -1) {
161 com_err(argv
[0], errno
,
162 "while trying to change native directory to %s",
168 static void close_filesystem(NOARGS
)
172 if (current_fs
->flags
& EXT2_FLAG_IB_DIRTY
) {
173 retval
= ext2fs_write_inode_bitmap(current_fs
);
175 com_err("ext2fs_write_inode_bitmap", retval
, "");
177 if (current_fs
->flags
& EXT2_FLAG_BB_DIRTY
) {
178 retval
= ext2fs_write_block_bitmap(current_fs
);
180 com_err("ext2fs_write_block_bitmap", retval
, "");
182 retval
= ext2fs_close(current_fs
);
184 com_err("ext2fs_close", retval
, "");
189 void do_close_filesys(int argc
, char **argv
)
192 com_err(argv
[0], 0, "Usage: close_filesys");
195 if (check_fs_open(argv
[0]))
200 void do_init_filesys(int argc
, char **argv
)
202 const char *usage
= "Usage: initialize <device> <blocksize>";
203 struct ext2_super_block param
;
208 com_err(argv
[0], 0, usage
);
211 if (check_fs_not_open(argv
[0]))
214 memset(¶m
, 0, sizeof(struct ext2_super_block
));
215 param
.s_blocks_count
= strtoul(argv
[2], &tmp
, 0);
217 com_err(argv
[0], 0, "Bad blocks count - %s", argv
[2]);
220 retval
= ext2fs_initialize(argv
[1], 0, ¶m
,
221 unix_io_manager
, ¤t_fs
);
223 com_err(argv
[1], retval
, "while initializing filesystem");
227 root
= cwd
= EXT2_ROOT_INO
;
231 static void print_features(struct ext2_super_block
* s
, FILE *f
)
234 __u32
*mask
= &s
->s_feature_compat
, m
;
236 printf ("Filesystem features:");
237 for (i
=0; i
<3; i
++,mask
++) {
238 for (j
=0,m
=1; j
< 32; j
++, m
<<=1) {
240 fprintf(f
, " %s", e2p_feature2string(i
, m
));
250 void do_show_super_stats(int argc
, char *argv
[])
254 struct ext2_group_desc
*gdp
;
255 int c
, header_only
= 0;
257 const char *none
= "(none)";
258 const char *usage
= "Usage: show_super [-h]";
262 optreset
= 1; /* Makes BSD getopt happy */
264 while ((c
= getopt (argc
, argv
, "h")) != EOF
) {
270 com_err(argv
[0], 0, usage
);
274 if (optind
!= argc
) {
275 com_err(argv
[0], 0, usage
);
278 if (check_fs_open(argv
[0]))
282 list_super2(current_fs
->super
, out
);
289 gdp
= ¤t_fs
->group_desc
[0];
290 for (i
= 0; i
< current_fs
->group_desc_count
; i
++, gdp
++)
291 fprintf(out
, " Group %2d: block bitmap at %d, "
292 "inode bitmap at %d, "
293 "inode table at %d\n"
296 "%d used director%s\n",
297 i
, gdp
->bg_block_bitmap
,
298 gdp
->bg_inode_bitmap
, gdp
->bg_inode_table
,
299 gdp
->bg_free_blocks_count
,
300 gdp
->bg_free_blocks_count
!= 1 ? "s" : "",
301 gdp
->bg_free_inodes_count
,
302 gdp
->bg_free_inodes_count
!= 1 ? "s" : "",
303 gdp
->bg_used_dirs_count
,
304 gdp
->bg_used_dirs_count
!= 1 ? "ies" : "y");
308 void do_dirty_filesys(int argc
, char **argv
)
310 if (check_fs_open(argv
[0]))
312 if (check_fs_read_write(argv
[0]))
315 if (argv
[1] && !strcmp(argv
[1], "-clean"))
316 current_fs
->super
->s_state
|= EXT2_VALID_FS
;
318 current_fs
->super
->s_state
&= ~EXT2_VALID_FS
;
319 ext2fs_mark_super_dirty(current_fs
);
322 struct list_blocks_struct
{
325 blk_t first_block
, last_block
;
326 int first_bcnt
, last_bcnt
;
330 static void finish_range(struct list_blocks_struct
*lb
)
332 if (lb
->first_block
== 0)
337 fprintf(lb
->f
, ", ");
338 if (lb
->first_block
== lb
->last_block
)
339 fprintf(lb
->f
, "(%d):%d", lb
->first_bcnt
, lb
->first_block
);
341 fprintf(lb
->f
, "(%d-%d):%d-%d", lb
->first_bcnt
,
342 lb
->last_bcnt
, lb
->first_block
, lb
->last_block
);
346 static int list_blocks_proc(ext2_filsys fs
, blk_t
*blocknr
, int blockcnt
,
349 struct list_blocks_struct
*lb
= (struct list_blocks_struct
*) private;
354 * See if we can add on to the existing range (if it exists)
356 if (lb
->first_block
&&
357 (lb
->last_block
+1 == *blocknr
) &&
358 (lb
->last_bcnt
+1 == blockcnt
)) {
359 lb
->last_block
= *blocknr
;
360 lb
->last_bcnt
= blockcnt
;
367 lb
->first_block
= lb
->last_block
= *blocknr
;
368 lb
->first_bcnt
= lb
->last_bcnt
= blockcnt
;
372 * Not a normal block. Always force a new range.
378 fprintf(lb
->f
, ", ");
380 fprintf(lb
->f
, "(IND):%d", *blocknr
);
381 else if (blockcnt
== -2)
382 fprintf(lb
->f
, "(DIND):%d", *blocknr
);
383 else if (blockcnt
== -3)
384 fprintf(lb
->f
, "(TIND):%d", *blocknr
);
389 static void dump_blocks(FILE *f
, ino_t inode
)
391 struct list_blocks_struct lb
;
393 fprintf(f
, "BLOCKS:\n");
398 ext2fs_block_iterate(current_fs
, inode
, 0, NULL
,
399 list_blocks_proc
, (void *)&lb
);
402 fprintf(f
, "\nTOTAL: %d\n", lb
.total
);
407 static void dump_inode(ino_t inode_num
, struct ext2_inode inode
)
412 int os
= current_fs
->super
->s_creator_os
;
415 if (LINUX_S_ISDIR(inode
.i_mode
)) i_type
= "directory";
416 else if (LINUX_S_ISREG(inode
.i_mode
)) i_type
= "regular";
417 else if (LINUX_S_ISLNK(inode
.i_mode
)) i_type
= "symlink";
418 else if (LINUX_S_ISBLK(inode
.i_mode
)) i_type
= "block special";
419 else if (LINUX_S_ISCHR(inode
.i_mode
)) i_type
= "character special";
420 else if (LINUX_S_ISFIFO(inode
.i_mode
)) i_type
= "FIFO";
421 else if (LINUX_S_ISSOCK(inode
.i_mode
)) i_type
= "socket";
422 else i_type
= "bad type";
423 fprintf(out
, "Inode: %ld Type: %s ", inode_num
, i_type
);
424 fprintf(out
, "Mode: %04o Flags: 0x%x Generation: %u\n",
425 inode
.i_mode
& 0777, inode
.i_flags
, inode
.i_generation
);
426 fprintf(out
, "User: %5d Group: %5d Size: ",
427 inode
.i_uid
, inode
.i_gid
);
428 if (LINUX_S_ISDIR(inode
.i_mode
))
429 fprintf(out
, "%d\n", inode
.i_size
);
431 __u64 i_size
= (inode
.i_size
|
432 ((unsigned long long)inode
.i_size_high
<< 32));
434 fprintf(out
, "%lld\n", i_size
);
436 if (current_fs
->super
->s_creator_os
== EXT2_OS_HURD
)
438 "File ACL: %d Directory ACL: %d Translator: %d\n",
439 inode
.i_file_acl
, LINUX_S_ISDIR(inode
.i_mode
) ? inode
.i_dir_acl
: 0,
440 inode
.osd1
.hurd1
.h_i_translator
);
442 fprintf(out
, "File ACL: %d Directory ACL: %d\n",
443 inode
.i_file_acl
, LINUX_S_ISDIR(inode
.i_mode
) ? inode
.i_dir_acl
: 0);
444 fprintf(out
, "Links: %d Blockcount: %d\n", inode
.i_links_count
,
448 frag
= inode
.osd2
.linux2
.l_i_frag
;
449 fsize
= inode
.osd2
.linux2
.l_i_fsize
;
452 frag
= inode
.osd2
.hurd2
.h_i_frag
;
453 fsize
= inode
.osd2
.hurd2
.h_i_fsize
;
456 frag
= inode
.osd2
.masix2
.m_i_frag
;
457 fsize
= inode
.osd2
.masix2
.m_i_fsize
;
462 fprintf(out
, "Fragment: Address: %d Number: %d Size: %d\n",
463 inode
.i_faddr
, frag
, fsize
);
464 fprintf(out
, "ctime: 0x%08x -- %s", inode
.i_ctime
,
465 time_to_string(inode
.i_ctime
));
466 fprintf(out
, "atime: 0x%08x -- %s", inode
.i_atime
,
467 time_to_string(inode
.i_atime
));
468 fprintf(out
, "mtime: 0x%08x -- %s", inode
.i_mtime
,
469 time_to_string(inode
.i_mtime
));
471 fprintf(out
, "dtime: 0x%08x -- %s", inode
.i_dtime
,
472 time_to_string(inode
.i_dtime
));
473 if (LINUX_S_ISLNK(inode
.i_mode
) && inode
.i_blocks
== 0)
474 fprintf(out
, "Fast_link_dest: %.*s\n",
475 inode
.i_size
, (char *)inode
.i_block
);
477 dump_blocks(out
, inode_num
);
482 void do_stat(int argc
, char *argv
[])
485 struct ext2_inode inode_buf
;
489 com_err(argv
[0], 0, "Usage: stat <file>");
492 if (check_fs_open(argv
[0]))
494 inode
= string_to_inode(argv
[1]);
498 retval
= ext2fs_read_inode(current_fs
, inode
, &inode_buf
);
501 com_err(argv
[0], retval
, "while trying to read inode %d", inode
);
505 dump_inode(inode
,inode_buf
);
509 void do_chroot(int argc
, char *argv
[])
515 com_err(argv
[0], 0, "Usage: chroot <file>");
518 if (check_fs_open(argv
[0]))
520 inode
= string_to_inode(argv
[1]);
524 retval
= ext2fs_check_directory(current_fs
, inode
);
526 com_err(argv
[1], retval
, "");
532 void do_clri(int argc
, char *argv
[])
536 struct ext2_inode inode_buf
;
539 com_err(argv
[0], 0, "Usage: clri <file>");
542 if (check_fs_open(argv
[0]))
544 if (check_fs_read_write(argv
[0]))
546 inode
= string_to_inode(argv
[1]);
550 retval
= ext2fs_read_inode(current_fs
, inode
, &inode_buf
);
552 com_err(argv
[0], retval
, "while trying to read inode %d",
556 memset(&inode_buf
, 0, sizeof(inode_buf
));
557 retval
= ext2fs_write_inode(current_fs
, inode
, &inode_buf
);
559 com_err(argv
[0], retval
, "while trying to write inode %d",
565 void do_freei(int argc
, char *argv
[])
570 com_err(argv
[0], 0, "Usage: freei <file>");
573 if (check_fs_open(argv
[0]))
575 if (check_fs_read_write(argv
[0]))
577 inode
= string_to_inode(argv
[1]);
581 if (!ext2fs_test_inode_bitmap(current_fs
->inode_map
,inode
))
582 com_err(argv
[0], 0, "Warning: inode already clear");
583 ext2fs_unmark_inode_bitmap(current_fs
->inode_map
,inode
);
584 ext2fs_mark_ib_dirty(current_fs
);
587 void do_seti(int argc
, char *argv
[])
592 com_err(argv
[0], 0, "Usage: seti <file>");
595 if (check_fs_open(argv
[0]))
597 if (check_fs_read_write(argv
[0]))
599 inode
= string_to_inode(argv
[1]);
603 if (ext2fs_test_inode_bitmap(current_fs
->inode_map
,inode
))
604 com_err(argv
[0], 0, "Warning: inode already set");
605 ext2fs_mark_inode_bitmap(current_fs
->inode_map
,inode
);
606 ext2fs_mark_ib_dirty(current_fs
);
609 void do_testi(int argc
, char *argv
[])
614 com_err(argv
[0], 0, "Usage: testi <file>");
617 if (check_fs_open(argv
[0]))
619 if (check_fs_bitmaps(argv
[0]))
621 inode
= string_to_inode(argv
[1]);
625 if (ext2fs_test_inode_bitmap(current_fs
->inode_map
,inode
))
626 printf("Inode %ld is marked in use\n", inode
);
628 printf("Inode %ld is not in use\n", inode
);
632 void do_freeb(int argc
, char *argv
[])
638 com_err(argv
[0], 0, "Usage: freeb <block>");
641 if (check_fs_open(argv
[0]))
643 if (check_fs_read_write(argv
[0]))
645 block
= strtoul(argv
[1], &tmp
, 0);
646 if (!block
|| *tmp
) {
647 com_err(argv
[0], 0, "No block 0");
650 if (!ext2fs_test_block_bitmap(current_fs
->block_map
,block
))
651 com_err(argv
[0], 0, "Warning: block already clear");
652 ext2fs_unmark_block_bitmap(current_fs
->block_map
,block
);
653 ext2fs_mark_bb_dirty(current_fs
);
656 void do_setb(int argc
, char *argv
[])
662 com_err(argv
[0], 0, "Usage: setb <block>");
665 if (check_fs_open(argv
[0]))
667 if (check_fs_read_write(argv
[0]))
669 block
= strtoul(argv
[1], &tmp
, 0);
670 if (!block
|| *tmp
) {
671 com_err(argv
[0], 0, "No block 0");
674 if (ext2fs_test_block_bitmap(current_fs
->block_map
,block
))
675 com_err(argv
[0], 0, "Warning: block already set");
676 ext2fs_mark_block_bitmap(current_fs
->block_map
,block
);
677 ext2fs_mark_bb_dirty(current_fs
);
680 void do_testb(int argc
, char *argv
[])
686 com_err(argv
[0], 0, "Usage: testb <block>");
689 if (check_fs_open(argv
[0]))
691 if (check_fs_bitmaps(argv
[0]))
693 block
= strtoul(argv
[1], &tmp
, 0);
694 if (!block
|| *tmp
) {
695 com_err(argv
[0], 0, "No block 0");
698 if (ext2fs_test_block_bitmap(current_fs
->block_map
,block
))
699 printf("Block %d marked in use\n", block
);
700 else printf("Block %d not in use\n", block
);
703 static void modify_u8(char *com
, const char *prompt
,
704 const char *format
, __u8
*val
)
710 sprintf(buf
, format
, *val
);
711 printf("%30s [%s] ", prompt
, buf
);
712 fgets(buf
, sizeof(buf
), stdin
);
713 if (buf
[strlen (buf
) - 1] == '\n')
714 buf
[strlen (buf
) - 1] = '\0';
717 v
= strtoul(buf
, &tmp
, 0);
719 com_err(com
, 0, "Bad value - %s", buf
);
724 static void modify_u16(char *com
, const char *prompt
,
725 const char *format
, __u16
*val
)
731 sprintf(buf
, format
, *val
);
732 printf("%30s [%s] ", prompt
, buf
);
733 fgets(buf
, sizeof(buf
), stdin
);
734 if (buf
[strlen (buf
) - 1] == '\n')
735 buf
[strlen (buf
) - 1] = '\0';
738 v
= strtoul(buf
, &tmp
, 0);
740 com_err(com
, 0, "Bad value - %s", buf
);
745 static void modify_u32(char *com
, const char *prompt
,
746 const char *format
, __u32
*val
)
752 sprintf(buf
, format
, *val
);
753 printf("%30s [%s] ", prompt
, buf
);
754 fgets(buf
, sizeof(buf
), stdin
);
755 if (buf
[strlen (buf
) - 1] == '\n')
756 buf
[strlen (buf
) - 1] = '\0';
759 v
= strtoul(buf
, &tmp
, 0);
761 com_err(com
, 0, "Bad value - %s", buf
);
767 void do_modify_inode(int argc
, char *argv
[])
769 struct ext2_inode inode
;
773 unsigned char *frag
, *fsize
;
775 int os
= current_fs
->super
->s_creator_os
;
776 const char *hex_format
= "0x%x";
777 const char *octal_format
= "0%o";
778 const char *decimal_format
= "%d";
781 com_err(argv
[0], 0, "Usage: modify_inode <file>");
784 if (check_fs_open(argv
[0]))
786 if (check_fs_read_write(argv
[0]))
789 inode_num
= string_to_inode(argv
[1]);
793 retval
= ext2fs_read_inode(current_fs
, inode_num
, &inode
);
795 com_err(argv
[1], retval
, "while trying to read inode %d",
800 modify_u16(argv
[0], "Mode", octal_format
, &inode
.i_mode
);
801 modify_u16(argv
[0], "User ID", decimal_format
, &inode
.i_uid
);
802 modify_u16(argv
[0], "Group ID", decimal_format
, &inode
.i_gid
);
803 modify_u32(argv
[0], "Size", decimal_format
, &inode
.i_size
);
804 modify_u32(argv
[0], "Creation time", decimal_format
, &inode
.i_ctime
);
805 modify_u32(argv
[0], "Modification time", decimal_format
, &inode
.i_mtime
);
806 modify_u32(argv
[0], "Access time", decimal_format
, &inode
.i_atime
);
807 modify_u32(argv
[0], "Deletion time", decimal_format
, &inode
.i_dtime
);
808 modify_u16(argv
[0], "Link count", decimal_format
, &inode
.i_links_count
);
809 modify_u32(argv
[0], "Block count", decimal_format
, &inode
.i_blocks
);
810 modify_u32(argv
[0], "File flags", hex_format
, &inode
.i_flags
);
811 modify_u32(argv
[0], "Generation", hex_format
, &inode
.i_generation
);
813 modify_u32(argv
[0], "Reserved1", decimal_format
, &inode
.i_reserved1
);
815 modify_u32(argv
[0], "File acl", decimal_format
, &inode
.i_file_acl
);
816 if (LINUX_S_ISDIR(inode
.i_mode
))
817 modify_u32(argv
[0], "Directory acl", decimal_format
, &inode
.i_dir_acl
);
819 modify_u32(argv
[0], "High 32bits of size", decimal_format
, &inode
.i_size_high
);
821 if (current_fs
->super
->s_creator_os
== EXT2_OS_HURD
)
822 modify_u32(argv
[0], "Translator Block",
823 decimal_format
, &inode
.osd1
.hurd1
.h_i_translator
);
825 modify_u32(argv
[0], "Fragment address", decimal_format
, &inode
.i_faddr
);
828 frag
= &inode
.osd2
.linux2
.l_i_frag
;
829 fsize
= &inode
.osd2
.linux2
.l_i_fsize
;
832 frag
= &inode
.osd2
.hurd2
.h_i_frag
;
833 fsize
= &inode
.osd2
.hurd2
.h_i_fsize
;
836 frag
= &inode
.osd2
.masix2
.m_i_frag
;
837 fsize
= &inode
.osd2
.masix2
.m_i_fsize
;
843 modify_u8(argv
[0], "Fragment number", decimal_format
, frag
);
845 modify_u8(argv
[0], "Fragment size", decimal_format
, fsize
);
847 for (i
=0; i
< EXT2_NDIR_BLOCKS
; i
++) {
848 sprintf(buf
, "Direct Block #%d", i
);
849 modify_u32(argv
[0], buf
, decimal_format
, &inode
.i_block
[i
]);
851 modify_u32(argv
[0], "Indirect Block", decimal_format
,
852 &inode
.i_block
[EXT2_IND_BLOCK
]);
853 modify_u32(argv
[0], "Double Indirect Block", decimal_format
,
854 &inode
.i_block
[EXT2_DIND_BLOCK
]);
855 modify_u32(argv
[0], "Triple Indirect Block", decimal_format
,
856 &inode
.i_block
[EXT2_TIND_BLOCK
]);
857 retval
= ext2fs_write_inode(current_fs
, inode_num
, &inode
);
859 com_err(argv
[1], retval
, "while trying to write inode %d",
865 void do_change_working_dir(int argc
, char *argv
[])
871 com_err(argv
[0], 0, "Usage: cd <file>");
874 if (check_fs_open(argv
[0]))
877 inode
= string_to_inode(argv
[1]);
881 retval
= ext2fs_check_directory(current_fs
, inode
);
883 com_err(argv
[1], retval
, "");
890 void do_print_working_directory(int argc
, char *argv
[])
893 char *pathname
= NULL
;
896 com_err(argv
[0], 0, "Usage: print_working_directory");
899 if (check_fs_open(argv
[0]))
902 retval
= ext2fs_get_pathname(current_fs
, cwd
, 0, &pathname
);
904 com_err(argv
[0], retval
,
905 "while trying to get pathname of cwd");
907 printf("[pwd] INODE: %6ld PATH: %s\n", cwd
, pathname
);
909 retval
= ext2fs_get_pathname(current_fs
, root
, 0, &pathname
);
911 com_err(argv
[0], retval
,
912 "while trying to get pathname of root");
914 printf("[root] INODE: %6ld PATH: %s\n", root
, pathname
);
919 static void make_link(char *sourcename
, char *destname
)
924 char *dest
, *cp
, *basename
;
927 * Get the source inode
929 inode
= string_to_inode(sourcename
);
932 basename
= strrchr(sourcename
, '/');
936 basename
= sourcename
;
938 * Figure out the destination. First see if it exists and is
941 if (! (retval
=ext2fs_namei(current_fs
, root
, cwd
, destname
, &dir
)))
945 * OK, it doesn't exist. See if it is
946 * '<dir>/basename' or 'basename'
948 cp
= strrchr(destname
, '/');
951 dir
= string_to_inode(destname
);
961 retval
= ext2fs_link(current_fs
, dir
, dest
, inode
, 0);
963 com_err("make_link", retval
, "");
968 void do_link(int argc
, char *argv
[])
971 com_err(argv
[0], 0, "Usage: link <source_file> <dest_name>");
974 if (check_fs_open(argv
[0]))
977 make_link(argv
[1], argv
[2]);
980 static void unlink_file_by_name(char *filename
)
986 basename
= strrchr(filename
, '/');
989 dir
= string_to_inode(filename
);
996 retval
= ext2fs_unlink(current_fs
, dir
, basename
, 0, 0);
998 com_err("unlink_file_by_name", retval
, "");
1002 void do_unlink(int argc
, char *argv
[])
1005 com_err(argv
[0], 0, "Usage: unlink <pathname>");
1008 if (check_fs_open(argv
[0]))
1011 unlink_file_by_name(argv
[1]);
1014 void do_find_free_block(int argc
, char *argv
[])
1016 blk_t free_blk
, goal
;
1020 if ((argc
> 2) || (argc
==2 && *argv
[1] == '?')) {
1021 com_err(argv
[0], 0, "Usage: find_free_block [goal]");
1024 if (check_fs_open(argv
[0]))
1028 goal
= strtol(argv
[1], &tmp
, 0);
1030 com_err(argv
[0], 0, "Bad goal - %s", argv
[1]);
1035 goal
= current_fs
->super
->s_first_data_block
;
1037 retval
= ext2fs_new_block(current_fs
, goal
, 0, &free_blk
);
1039 com_err("ext2fs_new_block", retval
, "");
1041 printf("Free block found: %d\n", free_blk
);
1045 void do_find_free_inode(int argc
, char *argv
[])
1047 ino_t free_inode
, dir
;
1052 if (argc
> 3 || (argc
>1 && *argv
[1] == '?')) {
1053 com_err(argv
[0], 0, "Usage: find_free_inode [dir] [mode]");
1056 if (check_fs_open(argv
[0]))
1060 dir
= strtol(argv
[1], &tmp
, 0);
1062 com_err(argv
[0], 0, "Bad dir - %s", argv
[1]);
1069 mode
= strtol(argv
[2], &tmp
, 0);
1071 com_err(argv
[0], 0, "Bad mode - %s", argv
[2]);
1077 retval
= ext2fs_new_inode(current_fs
, dir
, mode
, 0, &free_inode
);
1079 com_err("ext2fs_new_inode", retval
, "");
1081 printf("Free inode found: %ld\n", free_inode
);
1084 static errcode_t
copy_file(int fd
, ino_t newfile
)
1086 ext2_file_t e2_file
;
1088 unsigned int got
, written
;
1092 retval
= ext2fs_file_open(current_fs
, newfile
,
1093 EXT2_FILE_WRITE
, &e2_file
);
1098 got
= read(fd
, buf
, sizeof(buf
));
1107 retval
= ext2fs_file_write(e2_file
, ptr
,
1116 retval
= ext2fs_file_close(e2_file
);
1121 (void) ext2fs_file_close(e2_file
);
1126 void do_write(int argc
, char *argv
[])
1129 struct stat statbuf
;
1132 struct ext2_inode inode
;
1135 if (check_fs_open(argv
[0]))
1138 com_err(argv
[0], 0, "Usage: write <nativefile> <newfile>");
1141 if (check_fs_read_write(argv
[0]))
1143 fd
= open(argv
[1], O_RDONLY
);
1145 com_err(argv
[1], fd
, "");
1148 if (fstat(fd
, &statbuf
) < 0) {
1149 com_err(argv
[1], errno
, "");
1154 retval
= ext2fs_new_inode(current_fs
, cwd
, 010755, 0, &newfile
);
1156 com_err(argv
[0], retval
, "");
1160 group
= ext2fs_group_of_ino(current_fs
, newfile
);
1161 current_fs
->group_desc
[group
].bg_free_inodes_count
--;
1162 current_fs
->super
->s_free_inodes_count
--;
1163 ext2fs_mark_super_dirty(current_fs
);
1164 printf("Allocated inode: %ld\n", newfile
);
1165 retval
= ext2fs_link(current_fs
, cwd
, argv
[2], newfile
, 0);
1167 com_err(argv
[2], retval
, "");
1171 if (ext2fs_test_inode_bitmap(current_fs
->inode_map
,newfile
))
1172 com_err(argv
[0], 0, "Warning: inode already set");
1173 ext2fs_mark_inode_bitmap(current_fs
->inode_map
,newfile
);
1174 ext2fs_mark_ib_dirty(current_fs
);
1175 memset(&inode
, 0, sizeof(inode
));
1176 inode
.i_mode
= statbuf
.st_mode
;
1177 inode
.i_atime
= inode
.i_ctime
= inode
.i_mtime
= time(NULL
);
1178 inode
.i_links_count
= 1;
1179 inode
.i_size
= statbuf
.st_size
;
1180 ext2fs_write_inode(current_fs
, newfile
, &inode
);
1181 retval
= ext2fs_write_inode(current_fs
, newfile
, &inode
);
1183 com_err(argv
[0], retval
, "while trying to write inode %d",
1188 if (LINUX_S_ISREG(inode
.i_mode
)) {
1189 retval
= copy_file(fd
, newfile
);
1191 com_err("copy_file", retval
, "");
1196 void do_mknod(int argc
, char *argv
[])
1198 unsigned long mode
, major
, minor
, nr
;
1201 struct ext2_inode inode
;
1203 if (check_fs_open(argv
[0]))
1205 if (argc
< 3 || argv
[2][1]) {
1206 com_err(argv
[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1209 mode
= minor
= major
= 0;
1210 switch (argv
[2][0]) {
1212 mode
= LINUX_S_IFIFO
;
1216 mode
= LINUX_S_IFCHR
;
1220 mode
= LINUX_S_IFBLK
;
1227 major
= strtoul(argv
[3], argv
+3, 0);
1228 minor
= strtoul(argv
[4], argv
+4, 0);
1229 if (major
> 255 || minor
> 255 || argv
[3][0] || argv
[4][0])
1233 com_err(argv
[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1236 if (check_fs_read_write(argv
[0]))
1238 retval
= ext2fs_new_inode(current_fs
, cwd
, 010755, 0, &newfile
);
1240 com_err(argv
[0], retval
, "");
1243 printf("Allocated inode: %ld\n", newfile
);
1244 retval
= ext2fs_link(current_fs
, cwd
, argv
[1], newfile
, 0);
1246 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
1247 retval
= ext2fs_expand_dir(current_fs
, cwd
);
1249 retval
= ext2fs_link(current_fs
, cwd
,
1250 argv
[1], newfile
, 0);
1253 com_err(argv
[1], retval
, "");
1257 if (ext2fs_test_inode_bitmap(current_fs
->inode_map
,newfile
))
1258 com_err(argv
[0], 0, "Warning: inode already set");
1259 ext2fs_mark_inode_bitmap(current_fs
->inode_map
, newfile
);
1260 ext2fs_mark_ib_dirty(current_fs
);
1261 memset(&inode
, 0, sizeof(inode
));
1262 inode
.i_mode
= mode
;
1263 inode
.i_atime
= inode
.i_ctime
= inode
.i_mtime
= time(NULL
);
1264 inode
.i_block
[0] = major
*256+minor
;
1265 inode
.i_links_count
= 1;
1266 ext2fs_write_inode(current_fs
, newfile
, &inode
);
1267 retval
= ext2fs_write_inode(current_fs
, newfile
, &inode
);
1269 com_err(argv
[0], retval
, "while trying to write inode %d", inode
);
1274 void do_mkdir(int argc
, char *argv
[])
1281 if (check_fs_open(argv
[0]))
1285 com_err(argv
[0], 0, "Usage: mkdir <file>");
1289 if (check_fs_read_write(argv
[0]))
1292 cp
= strrchr(argv
[1], '/');
1295 parent
= string_to_inode(argv
[1]);
1297 com_err(argv
[1], ENOENT
, "");
1307 retval
= ext2fs_mkdir(current_fs
, parent
, 0, name
);
1309 com_err("ext2fs_mkdir", retval
, "");
1315 void do_rmdir(int argc
, char *argv
[])
1317 printf("Unimplemented\n");
1321 static int release_blocks_proc(ext2_filsys fs
, blk_t
*blocknr
,
1322 int blockcnt
, void *private)
1324 printf("%d ", *blocknr
);
1325 ext2fs_unmark_block_bitmap(fs
->block_map
,*blocknr
);
1329 static void kill_file_by_inode(ino_t inode
)
1331 struct ext2_inode inode_buf
;
1333 ext2fs_read_inode(current_fs
, inode
, &inode_buf
);
1334 inode_buf
.i_dtime
= time(NULL
);
1335 ext2fs_write_inode(current_fs
, inode
, &inode_buf
);
1337 printf("Kill file by inode %ld\n", inode
);
1338 ext2fs_block_iterate(current_fs
, inode
, 0, NULL
,
1339 release_blocks_proc
, NULL
);
1341 ext2fs_unmark_inode_bitmap(current_fs
->inode_map
, inode
);
1343 ext2fs_mark_bb_dirty(current_fs
);
1344 ext2fs_mark_ib_dirty(current_fs
);
1348 void do_kill_file(int argc
, char *argv
[])
1353 com_err(argv
[0], 0, "Usage: kill_file <file>");
1356 if (check_fs_open(argv
[0]))
1359 if (check_fs_read_write(argv
[0]))
1362 inode_num
= string_to_inode(argv
[1]);
1364 com_err(argv
[0], 0, "Cannot find file");
1367 kill_file_by_inode(inode_num
);
1370 void do_rm(int argc
, char *argv
[])
1374 struct ext2_inode inode
;
1377 com_err(argv
[0], 0, "Usage: rm <filename>");
1380 if (check_fs_open(argv
[0]))
1383 if (check_fs_read_write(argv
[0]))
1386 retval
= ext2fs_namei(current_fs
, root
, cwd
, argv
[1], &inode_num
);
1388 com_err(argv
[0], retval
, "while trying to resolve filename");
1392 retval
= ext2fs_read_inode(current_fs
,inode_num
,&inode
);
1394 com_err(argv
[0], retval
, "while reading file's inode");
1398 if (LINUX_S_ISDIR(inode
.i_mode
)) {
1399 com_err(argv
[0], 0, "file is a directory");
1403 --inode
.i_links_count
;
1404 retval
= ext2fs_write_inode(current_fs
,inode_num
,&inode
);
1406 com_err(argv
[0], retval
, "while writing inode");
1410 unlink_file_by_name(argv
[1]);
1411 if (inode
.i_links_count
== 0)
1412 kill_file_by_inode(inode_num
);
1415 void do_show_debugfs_params(int argc
, char *argv
[])
1420 fprintf(out
, "Open mode: read-%s\n",
1421 current_fs
->flags
& EXT2_FLAG_RW
? "write" : "only");
1422 fprintf(out
, "Filesystem in use: %s\n",
1423 current_fs
? current_fs
->device_name
: "--none--");
1426 void do_expand_dir(int argc
, char *argv
[])
1432 com_err(argv
[0], 0, "Usage: expand_dir <file>");
1435 if (check_fs_open(argv
[0]))
1437 inode
= string_to_inode(argv
[1]);
1441 retval
= ext2fs_expand_dir(current_fs
, inode
);
1443 com_err("ext2fs_expand_dir", retval
, "");
1447 void do_features(int argc
, char *argv
[])
1451 if (check_fs_open(argv
[0]))
1454 if ((argc
!= 1) && check_fs_read_write(argv
[0]))
1456 for (i
=1; i
< argc
; i
++) {
1457 if (e2p_edit_feature(argv
[i
],
1458 ¤t_fs
->super
->s_feature_compat
, 0))
1459 com_err(argv
[0], 0, "Unknown feature: %s\n",
1462 ext2fs_mark_super_dirty(current_fs
);
1464 print_features(current_fs
->super
, stdout
);
1467 static int source_file(const char *cmd_file
, int sci_idx
)
1472 int exit_status
= 0;
1475 if (strcmp(cmd_file
, "-") == 0)
1478 f
= fopen(cmd_file
, "r");
1484 setbuf(stdout
, NULL
);
1485 setbuf(stderr
, NULL
);
1487 if (fgets(buf
, sizeof(buf
), f
) == NULL
)
1489 cp
= strchr(buf
, '\n');
1492 cp
= strchr(buf
, '\r');
1495 printf("debugfs: %s\n", buf
);
1496 retval
= ss_execute_line(sci_idx
, buf
);
1498 ss_perror(sci_idx
, retval
, buf
);
1505 int main(int argc
, char **argv
)
1509 const char *usage
= "Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1513 int exit_status
= 0;
1515 blk_t superblock
= 0;
1516 blk_t blocksize
= 0;
1517 int catastrophic
= 0;
1520 initialize_ext2_error_table();
1521 fprintf (stderr
, "debugfs %s, %s for EXT2 FS %s, %s\n",
1522 E2FSPROGS_VERSION
, E2FSPROGS_DATE
,
1523 EXT2FS_VERSION
, EXT2FS_DATE
);
1525 while ((c
= getopt (argc
, argv
, "wcR:f:b:s:V")) != EOF
) {
1534 open_flags
= EXT2_FLAG_RW
;
1537 blocksize
= strtoul(optarg
, &tmp
, 0);
1540 "Bad block size - %s", optarg
);
1545 superblock
= strtoul(optarg
, &tmp
, 0);
1548 "Bad superblock number - %s", optarg
);
1556 /* Print version number and exit */
1557 fprintf(stderr
, "\tUsing %s\n",
1558 error_message(EXT2_ET_BASE
));
1561 com_err(argv
[0], 0, usage
);
1566 open_filesystem(argv
[optind
], open_flags
,
1567 superblock
, blocksize
, catastrophic
);
1569 sci_idx
= ss_create_invocation("debugfs", "0.0", (char *) NULL
,
1570 &debug_cmds
, &retval
);
1572 ss_perror(sci_idx
, retval
, "creating invocation");
1576 (void) ss_add_request_table (sci_idx
, &ss_std_requests
, 1, &retval
);
1578 ss_perror(sci_idx
, retval
, "adding standard requests");
1583 retval
= ss_execute_line(sci_idx
, request
);
1585 ss_perror(sci_idx
, retval
, request
);
1588 } else if (cmd_file
) {
1589 exit_status
= source_file(cmd_file
, sci_idx
);