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>
28 #include <sys/types.h>
32 #include "uuid/uuid.h"
35 #include <ext2fs/ext2_ext_attr.h>
37 #include "../version.h"
44 /* 64KiB is the minimium blksize to best minimize system call overhead. */
46 #define IO_BUFSIZE 64*1024
49 /* Block size for `st_blocks' */
54 ss_request_table
*extra_cmds
;
55 const char *debug_prog_name
;
58 ext2_filsys current_fs
= NULL
;
61 static void open_filesystem(char *device
, int open_flags
, blk64_t superblock
,
62 blk64_t blocksize
, int catastrophic
,
66 io_channel data_io
= 0;
68 if (superblock
!= 0 && blocksize
== 0) {
69 com_err(device
, 0, "if you specify the superblock, you must also specify the block size");
75 if ((open_flags
& EXT2_FLAG_IMAGE_FILE
) == 0) {
77 "The -d option is only valid when reading an e2image file");
81 retval
= unix_io_manager
->open(data_filename
, 0, &data_io
);
83 com_err(data_filename
, 0, "while opening data source");
89 if (catastrophic
&& (open_flags
& EXT2_FLAG_RW
)) {
91 "opening read-only because of catastrophic mode");
92 open_flags
&= ~EXT2_FLAG_RW
;
95 open_flags
|= EXT2_FLAG_SKIP_MMP
;
97 retval
= ext2fs_open(device
, open_flags
, superblock
, blocksize
,
98 unix_io_manager
, ¤t_fs
);
100 com_err(device
, retval
, "while opening filesystem");
104 current_fs
->default_bitmap_type
= EXT2FS_BMAP64_RBTREE
;
107 com_err(device
, 0, "catastrophic mode - not reading inode or group bitmaps");
109 retval
= ext2fs_read_inode_bitmap(current_fs
);
111 com_err(device
, retval
, "while reading inode bitmap");
114 retval
= ext2fs_read_block_bitmap(current_fs
);
116 com_err(device
, retval
, "while reading block bitmap");
122 retval
= ext2fs_set_data_io(current_fs
, data_io
);
124 com_err(device
, retval
,
125 "while setting data source");
130 root
= cwd
= EXT2_ROOT_INO
;
134 retval
= ext2fs_close(current_fs
);
136 com_err(device
, retval
, "while trying to close filesystem");
140 void do_open_filesys(int argc
, char **argv
)
143 int catastrophic
= 0;
144 blk64_t superblock
= 0;
145 blk64_t blocksize
= 0;
146 int open_flags
= EXT2_FLAG_SOFTSUPP_FEATURES
| EXT2_FLAG_64BITS
;
147 char *data_filename
= 0;
150 while ((c
= getopt (argc
, argv
, "iwfecb:s:d:D")) != EOF
) {
153 open_flags
|= EXT2_FLAG_IMAGE_FILE
;
159 open_flags
|= EXT2_FLAG_RW
;
160 #endif /* READ_ONLY */
163 open_flags
|= EXT2_FLAG_FORCE
;
166 open_flags
|= EXT2_FLAG_EXCLUSIVE
;
172 data_filename
= optarg
;
175 open_flags
|= EXT2_FLAG_DIRECT_IO
;
178 blocksize
= parse_ulong(optarg
, argv
[0],
184 superblock
= parse_ulong(optarg
, argv
[0],
185 "superblock number", &err
);
193 if (optind
!= argc
-1) {
196 if (check_fs_not_open(argv
[0]))
198 open_filesystem(argv
[optind
], open_flags
,
199 superblock
, blocksize
, catastrophic
,
204 fprintf(stderr
, "%s: Usage: open [-s superblock] [-b blocksize] [-c] "
208 "<device>\n", argv
[0]);
211 void do_lcd(int argc
, char **argv
)
214 com_err(argv
[0], 0, "Usage: %s %s", argv
[0], "<native dir>");
218 if (chdir(argv
[1]) == -1) {
219 com_err(argv
[0], errno
,
220 "while trying to change native directory to %s",
226 static void close_filesystem(NOARGS
)
230 if (current_fs
->flags
& EXT2_FLAG_IB_DIRTY
) {
231 retval
= ext2fs_write_inode_bitmap(current_fs
);
233 com_err("ext2fs_write_inode_bitmap", retval
, 0);
235 if (current_fs
->flags
& EXT2_FLAG_BB_DIRTY
) {
236 retval
= ext2fs_write_block_bitmap(current_fs
);
238 com_err("ext2fs_write_block_bitmap", retval
, 0);
240 retval
= ext2fs_close(current_fs
);
242 com_err("ext2fs_close", retval
, 0);
247 void do_close_filesys(int argc
, char **argv
)
251 if (check_fs_open(argv
[0]))
255 while ((c
= getopt (argc
, argv
, "a")) != EOF
) {
258 current_fs
->flags
&= ~EXT2_FLAG_MASTER_SB_ONLY
;
267 com_err(0, 0, "Usage: close_filesys [-a]");
275 void do_init_filesys(int argc
, char **argv
)
277 struct ext2_super_block param
;
281 if (common_args_process(argc
, argv
, 3, 3, "initialize",
282 "<device> <blocksize>", CHECK_FS_NOTOPEN
))
285 memset(¶m
, 0, sizeof(struct ext2_super_block
));
286 ext2fs_blocks_count_set(¶m
, parse_ulong(argv
[2], argv
[0],
287 "blocks count", &err
));
290 retval
= ext2fs_initialize(argv
[1], 0, ¶m
,
291 unix_io_manager
, ¤t_fs
);
293 com_err(argv
[1], retval
, "while initializing filesystem");
297 root
= cwd
= EXT2_ROOT_INO
;
301 static void print_features(struct ext2_super_block
* s
, FILE *f
)
304 __u32
*mask
= &s
->s_feature_compat
, m
;
306 fputs("Filesystem features:", f
);
307 for (i
=0; i
<3; i
++,mask
++) {
308 for (j
=0,m
=1; j
< 32; j
++, m
<<=1) {
310 fprintf(f
, " %s", e2p_feature2string(i
, m
));
319 #endif /* READ_ONLY */
321 static void print_bg_opts(ext2_filsys fs
, dgrp_t group
, int mask
,
322 const char *str
, int *first
, FILE *f
)
324 if (ext2fs_bg_flags_test(fs
, group
, mask
)) {
334 void do_show_super_stats(int argc
, char *argv
[])
336 const char *units
="block";
339 int c
, header_only
= 0;
340 int numdirs
= 0, first
, gdt_csum
;
343 while ((c
= getopt (argc
, argv
, "h")) != EOF
) {
352 if (optind
!= argc
) {
355 if (check_fs_open(argv
[0]))
359 if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs
->super
,
360 EXT4_FEATURE_RO_COMPAT_BIGALLOC
))
363 list_super2(current_fs
->super
, out
);
364 for (i
=0; i
< current_fs
->group_desc_count
; i
++)
365 numdirs
+= ext2fs_bg_used_dirs_count(current_fs
, i
);
366 fprintf(out
, "Directories: %d\n", numdirs
);
373 gdt_csum
= EXT2_HAS_RO_COMPAT_FEATURE(current_fs
->super
,
374 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
);
375 for (i
= 0; i
< current_fs
->group_desc_count
; i
++) {
376 fprintf(out
, " Group %2d: block bitmap at %llu, "
377 "inode bitmap at %llu, "
378 "inode table at %llu\n"
382 i
, ext2fs_block_bitmap_loc(current_fs
, i
),
383 ext2fs_inode_bitmap_loc(current_fs
, i
),
384 ext2fs_inode_table_loc(current_fs
, i
),
385 ext2fs_bg_free_blocks_count(current_fs
, i
), units
,
386 ext2fs_bg_free_blocks_count(current_fs
, i
) != 1 ?
388 ext2fs_bg_free_inodes_count(current_fs
, i
),
389 ext2fs_bg_free_inodes_count(current_fs
, i
) != 1 ?
391 ext2fs_bg_used_dirs_count(current_fs
, i
),
392 ext2fs_bg_used_dirs_count(current_fs
, i
) != 1 ? "directories"
393 : "directory", gdt_csum
? ", " : "\n");
395 fprintf(out
, "%u unused %s\n",
396 ext2fs_bg_itable_unused(current_fs
, i
),
397 ext2fs_bg_itable_unused(current_fs
, i
) != 1 ?
400 print_bg_opts(current_fs
, i
, EXT2_BG_INODE_UNINIT
, "Inode not init",
402 print_bg_opts(current_fs
, i
, EXT2_BG_BLOCK_UNINIT
, "Block not init",
405 fprintf(out
, "%sChecksum 0x%04x",
406 first
? " [":", ", ext2fs_bg_checksum(current_fs
, i
));
415 fprintf(stderr
, "%s: Usage: show_super [-h]\n", argv
[0]);
419 void do_dirty_filesys(int argc
EXT2FS_ATTR((unused
)),
420 char **argv
EXT2FS_ATTR((unused
)))
422 if (check_fs_open(argv
[0]))
424 if (check_fs_read_write(argv
[0]))
427 if (argv
[1] && !strcmp(argv
[1], "-clean"))
428 current_fs
->super
->s_state
|= EXT2_VALID_FS
;
430 current_fs
->super
->s_state
&= ~EXT2_VALID_FS
;
431 ext2fs_mark_super_dirty(current_fs
);
433 #endif /* READ_ONLY */
435 struct list_blocks_struct
{
438 blk64_t first_block
, last_block
;
439 e2_blkcnt_t first_bcnt
, last_bcnt
;
443 static void finish_range(struct list_blocks_struct
*lb
)
445 if (lb
->first_block
== 0)
450 fprintf(lb
->f
, ", ");
451 if (lb
->first_block
== lb
->last_block
)
452 fprintf(lb
->f
, "(%lld):%llu",
453 (long long)lb
->first_bcnt
, lb
->first_block
);
455 fprintf(lb
->f
, "(%lld-%lld):%llu-%llu",
456 (long long)lb
->first_bcnt
, (long long)lb
->last_bcnt
,
457 lb
->first_block
, lb
->last_block
);
461 static int list_blocks_proc(ext2_filsys fs
EXT2FS_ATTR((unused
)),
462 blk64_t
*blocknr
, e2_blkcnt_t blockcnt
,
463 blk64_t ref_block
EXT2FS_ATTR((unused
)),
464 int ref_offset
EXT2FS_ATTR((unused
)),
467 struct list_blocks_struct
*lb
= (struct list_blocks_struct
*) private;
472 * See if we can add on to the existing range (if it exists)
474 if (lb
->first_block
&&
475 (lb
->last_block
+1 == *blocknr
) &&
476 (lb
->last_bcnt
+1 == blockcnt
)) {
477 lb
->last_block
= *blocknr
;
478 lb
->last_bcnt
= blockcnt
;
485 lb
->first_block
= lb
->last_block
= *blocknr
;
486 lb
->first_bcnt
= lb
->last_bcnt
= blockcnt
;
490 * Not a normal block. Always force a new range.
496 fprintf(lb
->f
, ", ");
498 fprintf(lb
->f
, "(IND):%llu", (unsigned long long) *blocknr
);
499 else if (blockcnt
== -2)
500 fprintf(lb
->f
, "(DIND):%llu", (unsigned long long) *blocknr
);
501 else if (blockcnt
== -3)
502 fprintf(lb
->f
, "(TIND):%llu", (unsigned long long) *blocknr
);
506 static void dump_xattr_string(FILE *out
, const char *str
, int len
)
511 /* check: is string "printable enough?" */
512 for (i
= 0; i
< len
; i
++)
516 if (printable
<= len
*7/8)
519 for (i
= 0; i
< len
; i
++)
521 fprintf(out
, isprint(str
[i
]) ? "%c" : "\\%03o",
522 (unsigned char)str
[i
]);
524 fprintf(out
, "%02x ", (unsigned char)str
[i
]);
527 static void internal_dump_inode_extra(FILE *out
,
528 const char *prefix
EXT2FS_ATTR((unused
)),
529 ext2_ino_t inode_num
EXT2FS_ATTR((unused
)),
530 struct ext2_inode_large
*inode
)
532 struct ext2_ext_attr_entry
*entry
;
535 unsigned int storage_size
;
537 fprintf(out
, "Size of extra inode fields: %u\n", inode
->i_extra_isize
);
538 if (inode
->i_extra_isize
> EXT2_INODE_SIZE(current_fs
->super
) -
539 EXT2_GOOD_OLD_INODE_SIZE
) {
540 fprintf(stderr
, "invalid inode->i_extra_isize (%u)\n",
541 inode
->i_extra_isize
);
544 storage_size
= EXT2_INODE_SIZE(current_fs
->super
) -
545 EXT2_GOOD_OLD_INODE_SIZE
-
546 inode
->i_extra_isize
;
547 magic
= (__u32
*)((char *)inode
+ EXT2_GOOD_OLD_INODE_SIZE
+
548 inode
->i_extra_isize
);
549 if (*magic
== EXT2_EXT_ATTR_MAGIC
) {
550 fprintf(out
, "Extended attributes stored in inode body: \n");
551 end
= (char *) inode
+ EXT2_INODE_SIZE(current_fs
->super
);
552 start
= (char *) magic
+ sizeof(__u32
);
553 entry
= (struct ext2_ext_attr_entry
*) start
;
554 while (!EXT2_EXT_IS_LAST_ENTRY(entry
)) {
555 struct ext2_ext_attr_entry
*next
=
556 EXT2_EXT_ATTR_NEXT(entry
);
557 if (entry
->e_value_size
> storage_size
||
558 (char *) next
>= end
) {
559 fprintf(out
, "invalid EA entry in inode\n");
563 dump_xattr_string(out
, EXT2_EXT_ATTR_NAME(entry
),
565 fprintf(out
, " = \"");
566 dump_xattr_string(out
, start
+ entry
->e_value_offs
,
567 entry
->e_value_size
);
568 fprintf(out
, "\" (%u)\n", entry
->e_value_size
);
574 static void dump_blocks(FILE *f
, const char *prefix
, ext2_ino_t inode
)
576 struct list_blocks_struct lb
;
578 fprintf(f
, "%sBLOCKS:\n%s", prefix
, prefix
);
583 ext2fs_block_iterate3(current_fs
, inode
, BLOCK_FLAG_READ_ONLY
, NULL
,
584 list_blocks_proc
, (void *)&lb
);
587 fprintf(f
, "\n%sTOTAL: %lld\n", prefix
, (long long)lb
.total
);
591 static int int_log10(unsigned long long arg
)
603 #define DUMP_LEAF_EXTENTS 0x01
604 #define DUMP_NODE_EXTENTS 0x02
605 #define DUMP_EXTENT_TABLE 0x04
607 static void dump_extents(FILE *f
, const char *prefix
, ext2_ino_t ino
,
608 int flags
, int logical_width
, int physical_width
)
610 ext2_extent_handle_t handle
;
611 struct ext2fs_extent extent
;
612 struct ext2_extent_info info
;
613 int op
= EXT2_EXTENT_ROOT
;
614 unsigned int printed
= 0;
617 errcode
= ext2fs_extent_open(current_fs
, ino
, &handle
);
621 if (flags
& DUMP_EXTENT_TABLE
)
622 fprintf(f
, "Level Entries %*s %*s Length Flags\n",
623 (logical_width
*2)+3, "Logical",
624 (physical_width
*2)+3, "Physical");
626 fprintf(f
, "%sEXTENTS:\n%s", prefix
, prefix
);
629 errcode
= ext2fs_extent_get(handle
, op
, &extent
);
634 op
= EXT2_EXTENT_NEXT
;
636 if (extent
.e_flags
& EXT2_EXTENT_FLAGS_SECOND_VISIT
)
639 if (extent
.e_flags
& EXT2_EXTENT_FLAGS_LEAF
) {
640 if ((flags
& DUMP_LEAF_EXTENTS
) == 0)
643 if ((flags
& DUMP_NODE_EXTENTS
) == 0)
647 errcode
= ext2fs_extent_get_info(handle
, &info
);
651 if (!(extent
.e_flags
& EXT2_EXTENT_FLAGS_LEAF
)) {
652 if (extent
.e_flags
& EXT2_EXTENT_FLAGS_SECOND_VISIT
)
655 if (flags
& DUMP_EXTENT_TABLE
) {
656 fprintf(f
, "%2d/%2d %3d/%3d %*llu - %*llu "
658 info
.curr_level
, info
.max_depth
,
659 info
.curr_entry
, info
.num_entries
,
663 extent
.e_lblk
+ (extent
.e_len
- 1),
666 physical_width
+3, "", extent
.e_len
);
670 fprintf(f
, "%s(ETB%d):%lld",
671 printed
? ", " : "", info
.curr_level
,
677 if (flags
& DUMP_EXTENT_TABLE
) {
678 fprintf(f
, "%2d/%2d %3d/%3d %*llu - %*llu "
679 "%*llu - %*llu %6u %s\n",
680 info
.curr_level
, info
.max_depth
,
681 info
.curr_entry
, info
.num_entries
,
685 extent
.e_lblk
+ (extent
.e_len
- 1),
689 extent
.e_pblk
+ (extent
.e_len
- 1),
691 extent
.e_flags
& EXT2_EXTENT_FLAGS_UNINIT
?
696 if (extent
.e_len
== 0)
698 else if (extent
.e_len
== 1)
703 extent
.e_flags
& EXT2_EXTENT_FLAGS_UNINIT
?
708 "%s(%lld-%lld%s):%lld-%lld",
711 extent
.e_lblk
+ (extent
.e_len
- 1),
712 extent
.e_flags
& EXT2_EXTENT_FLAGS_UNINIT
?
715 extent
.e_pblk
+ (extent
.e_len
- 1));
722 void internal_dump_inode(FILE *out
, const char *prefix
,
723 ext2_ino_t inode_num
, struct ext2_inode
*inode
,
728 int os
= current_fs
->super
->s_creator_os
;
729 struct ext2_inode_large
*large_inode
;
730 int is_large_inode
= 0;
732 if (EXT2_INODE_SIZE(current_fs
->super
) > EXT2_GOOD_OLD_INODE_SIZE
)
734 large_inode
= (struct ext2_inode_large
*) inode
;
736 if (LINUX_S_ISDIR(inode
->i_mode
)) i_type
= "directory";
737 else if (LINUX_S_ISREG(inode
->i_mode
)) i_type
= "regular";
738 else if (LINUX_S_ISLNK(inode
->i_mode
)) i_type
= "symlink";
739 else if (LINUX_S_ISBLK(inode
->i_mode
)) i_type
= "block special";
740 else if (LINUX_S_ISCHR(inode
->i_mode
)) i_type
= "character special";
741 else if (LINUX_S_ISFIFO(inode
->i_mode
)) i_type
= "FIFO";
742 else if (LINUX_S_ISSOCK(inode
->i_mode
)) i_type
= "socket";
743 else i_type
= "bad type";
744 fprintf(out
, "%sInode: %u Type: %s ", prefix
, inode_num
, i_type
);
745 fprintf(out
, "%sMode: %04o Flags: 0x%x\n",
746 prefix
, inode
->i_mode
& 0777, inode
->i_flags
);
747 if (is_large_inode
&& large_inode
->i_extra_isize
>= 24) {
748 fprintf(out
, "%sGeneration: %u Version: 0x%08x:%08x\n",
749 prefix
, inode
->i_generation
, large_inode
->i_version_hi
,
750 inode
->osd1
.linux1
.l_i_version
);
752 fprintf(out
, "%sGeneration: %u Version: 0x%08x\n", prefix
,
753 inode
->i_generation
, inode
->osd1
.linux1
.l_i_version
);
755 fprintf(out
, "%sUser: %5d Group: %5d Size: ",
756 prefix
, inode_uid(*inode
), inode_gid(*inode
));
757 if (LINUX_S_ISREG(inode
->i_mode
))
758 fprintf(out
, "%llu\n", EXT2_I_SIZE(inode
));
760 fprintf(out
, "%d\n", inode
->i_size
);
761 if (os
== EXT2_OS_HURD
)
763 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
765 inode
->i_file_acl
, LINUX_S_ISDIR(inode
->i_mode
) ? inode
->i_dir_acl
: 0,
766 inode
->osd1
.hurd1
.h_i_translator
);
768 fprintf(out
, "%sFile ACL: %llu Directory ACL: %d\n",
770 inode
->i_file_acl
| ((long long)
771 (inode
->osd2
.linux2
.l_i_file_acl_high
) << 32),
772 LINUX_S_ISDIR(inode
->i_mode
) ? inode
->i_dir_acl
: 0);
773 if (os
== EXT2_OS_LINUX
)
774 fprintf(out
, "%sLinks: %d Blockcount: %llu\n",
775 prefix
, inode
->i_links_count
,
776 (((unsigned long long)
777 inode
->osd2
.linux2
.l_i_blocks_hi
<< 32)) +
780 fprintf(out
, "%sLinks: %d Blockcount: %u\n",
781 prefix
, inode
->i_links_count
, inode
->i_blocks
);
784 frag
= inode
->osd2
.hurd2
.h_i_frag
;
785 fsize
= inode
->osd2
.hurd2
.h_i_fsize
;
790 fprintf(out
, "%sFragment: Address: %d Number: %d Size: %d\n",
791 prefix
, inode
->i_faddr
, frag
, fsize
);
792 if (is_large_inode
&& large_inode
->i_extra_isize
>= 24) {
793 fprintf(out
, "%s ctime: 0x%08x:%08x -- %s", prefix
,
794 inode
->i_ctime
, large_inode
->i_ctime_extra
,
795 time_to_string(inode
->i_ctime
));
796 fprintf(out
, "%s atime: 0x%08x:%08x -- %s", prefix
,
797 inode
->i_atime
, large_inode
->i_atime_extra
,
798 time_to_string(inode
->i_atime
));
799 fprintf(out
, "%s mtime: 0x%08x:%08x -- %s", prefix
,
800 inode
->i_mtime
, large_inode
->i_mtime_extra
,
801 time_to_string(inode
->i_mtime
));
802 fprintf(out
, "%scrtime: 0x%08x:%08x -- %s", prefix
,
803 large_inode
->i_crtime
, large_inode
->i_crtime_extra
,
804 time_to_string(large_inode
->i_crtime
));
806 fprintf(out
, "%sctime: 0x%08x -- %s", prefix
, inode
->i_ctime
,
807 time_to_string(inode
->i_ctime
));
808 fprintf(out
, "%satime: 0x%08x -- %s", prefix
, inode
->i_atime
,
809 time_to_string(inode
->i_atime
));
810 fprintf(out
, "%smtime: 0x%08x -- %s", prefix
, inode
->i_mtime
,
811 time_to_string(inode
->i_mtime
));
814 fprintf(out
, "%sdtime: 0x%08x -- %s", prefix
, inode
->i_dtime
,
815 time_to_string(inode
->i_dtime
));
816 if (EXT2_INODE_SIZE(current_fs
->super
) > EXT2_GOOD_OLD_INODE_SIZE
)
817 internal_dump_inode_extra(out
, prefix
, inode_num
,
818 (struct ext2_inode_large
*) inode
);
819 if (LINUX_S_ISLNK(inode
->i_mode
) && ext2fs_inode_data_blocks(current_fs
,inode
) == 0)
820 fprintf(out
, "%sFast_link_dest: %.*s\n", prefix
,
821 (int) inode
->i_size
, (char *)inode
->i_block
);
822 else if (LINUX_S_ISBLK(inode
->i_mode
) || LINUX_S_ISCHR(inode
->i_mode
)) {
826 if (inode
->i_block
[0]) {
827 major
= (inode
->i_block
[0] >> 8) & 255;
828 minor
= inode
->i_block
[0] & 255;
831 major
= (inode
->i_block
[1] & 0xfff00) >> 8;
832 minor
= ((inode
->i_block
[1] & 0xff) |
833 ((inode
->i_block
[1] >> 12) & 0xfff00));
834 devnote
= "(New-style) ";
836 fprintf(out
, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
837 devnote
, major
, minor
, major
, minor
);
838 } else if (do_dump_blocks
) {
839 if (inode
->i_flags
& EXT4_EXTENTS_FL
)
840 dump_extents(out
, prefix
, inode_num
,
841 DUMP_LEAF_EXTENTS
|DUMP_NODE_EXTENTS
, 0, 0);
843 dump_blocks(out
, prefix
, inode_num
);
847 static void dump_inode(ext2_ino_t inode_num
, struct ext2_inode
*inode
)
852 internal_dump_inode(out
, "", inode_num
, inode
, 1);
856 void do_stat(int argc
, char *argv
[])
859 struct ext2_inode
* inode_buf
;
861 if (check_fs_open(argv
[0]))
864 inode_buf
= (struct ext2_inode
*)
865 malloc(EXT2_INODE_SIZE(current_fs
->super
));
867 fprintf(stderr
, "do_stat: can't allocate buffer\n");
871 if (common_inode_args_process(argc
, argv
, &inode
, 0)) {
876 if (debugfs_read_inode_full(inode
, inode_buf
, argv
[0],
877 EXT2_INODE_SIZE(current_fs
->super
))) {
882 dump_inode(inode
, inode_buf
);
887 void do_dump_extents(int argc
, char **argv
)
889 struct ext2_inode inode
;
897 while ((c
= getopt(argc
, argv
, "nl")) != EOF
) {
900 flags
|= DUMP_NODE_EXTENTS
;
903 flags
|= DUMP_LEAF_EXTENTS
;
908 if (argc
!= optind
+ 1) {
909 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
914 flags
= DUMP_NODE_EXTENTS
| DUMP_LEAF_EXTENTS
;
915 flags
|= DUMP_EXTENT_TABLE
;
917 if (check_fs_open(argv
[0]))
920 ino
= string_to_inode(argv
[optind
]);
924 if (debugfs_read_inode(ino
, &inode
, argv
[0]))
927 if ((inode
.i_flags
& EXT4_EXTENTS_FL
) == 0) {
928 fprintf(stderr
, "%s: does not uses extent block maps\n",
933 logical_width
= int_log10((EXT2_I_SIZE(&inode
)+current_fs
->blocksize
-1)/
934 current_fs
->blocksize
) + 1;
935 if (logical_width
< 5)
937 physical_width
= int_log10(ext2fs_blocks_count(current_fs
->super
)) + 1;
938 if (physical_width
< 5)
942 dump_extents(out
, "", ino
, flags
, logical_width
, physical_width
);
947 static int print_blocks_proc(ext2_filsys fs
EXT2FS_ATTR((unused
)),
949 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
950 blk64_t ref_block
EXT2FS_ATTR((unused
)),
951 int ref_offset
EXT2FS_ATTR((unused
)),
952 void *private EXT2FS_ATTR((unused
)))
954 printf("%llu ", *blocknr
);
958 void do_blocks(int argc
, char *argv
[])
962 if (check_fs_open(argv
[0]))
965 if (common_inode_args_process(argc
, argv
, &inode
, 0)) {
969 ext2fs_block_iterate3(current_fs
, inode
, BLOCK_FLAG_READ_ONLY
, NULL
,
970 print_blocks_proc
, NULL
);
975 void do_chroot(int argc
, char *argv
[])
980 if (common_inode_args_process(argc
, argv
, &inode
, 0))
983 retval
= ext2fs_check_directory(current_fs
, inode
);
985 com_err(argv
[1], retval
, 0);
992 void do_clri(int argc
, char *argv
[])
995 struct ext2_inode inode_buf
;
997 if (common_inode_args_process(argc
, argv
, &inode
, CHECK_FS_RW
))
1000 if (debugfs_read_inode(inode
, &inode_buf
, argv
[0]))
1002 memset(&inode_buf
, 0, sizeof(inode_buf
));
1003 if (debugfs_write_inode(inode
, &inode_buf
, argv
[0]))
1007 void do_freei(int argc
, char *argv
[])
1009 unsigned int len
= 1;
1013 if (common_args_process(argc
, argv
, 2, 3, argv
[0], "<file> [num]",
1014 CHECK_FS_RW
| CHECK_FS_BITMAPS
))
1016 if (check_fs_read_write(argv
[0]))
1019 inode
= string_to_inode(argv
[1]);
1024 len
= parse_ulong(argv
[2], argv
[0], "length", &err
);
1030 !ext2fs_test_inode_bitmap2(current_fs
->inode_map
,inode
))
1031 com_err(argv
[0], 0, "Warning: inode already clear");
1033 ext2fs_unmark_inode_bitmap2(current_fs
->inode_map
, inode
);
1034 ext2fs_mark_ib_dirty(current_fs
);
1037 void do_seti(int argc
, char *argv
[])
1039 unsigned int len
= 1;
1043 if (common_args_process(argc
, argv
, 2, 3, argv
[0], "<file> [num]",
1044 CHECK_FS_RW
| CHECK_FS_BITMAPS
))
1046 if (check_fs_read_write(argv
[0]))
1049 inode
= string_to_inode(argv
[1]);
1054 len
= parse_ulong(argv
[2], argv
[0], "length", &err
);
1060 ext2fs_test_inode_bitmap2(current_fs
->inode_map
,inode
))
1061 com_err(argv
[0], 0, "Warning: inode already set");
1063 ext2fs_mark_inode_bitmap2(current_fs
->inode_map
, inode
++);
1064 ext2fs_mark_ib_dirty(current_fs
);
1066 #endif /* READ_ONLY */
1068 void do_testi(int argc
, char *argv
[])
1072 if (common_inode_args_process(argc
, argv
, &inode
, CHECK_FS_BITMAPS
))
1075 if (ext2fs_test_inode_bitmap2(current_fs
->inode_map
,inode
))
1076 printf("Inode %u is marked in use\n", inode
);
1078 printf("Inode %u is not in use\n", inode
);
1082 void do_freeb(int argc
, char *argv
[])
1087 if (common_block_args_process(argc
, argv
, &block
, &count
))
1089 if (check_fs_read_write(argv
[0]))
1091 while (count
-- > 0) {
1092 if (!ext2fs_test_block_bitmap2(current_fs
->block_map
,block
))
1093 com_err(argv
[0], 0, "Warning: block %llu already clear",
1095 ext2fs_unmark_block_bitmap2(current_fs
->block_map
,block
);
1098 ext2fs_mark_bb_dirty(current_fs
);
1101 void do_setb(int argc
, char *argv
[])
1106 if (common_block_args_process(argc
, argv
, &block
, &count
))
1108 if (check_fs_read_write(argv
[0]))
1110 while (count
-- > 0) {
1111 if (ext2fs_test_block_bitmap2(current_fs
->block_map
,block
))
1112 com_err(argv
[0], 0, "Warning: block %llu already set",
1114 ext2fs_mark_block_bitmap2(current_fs
->block_map
,block
);
1117 ext2fs_mark_bb_dirty(current_fs
);
1119 #endif /* READ_ONLY */
1121 void do_testb(int argc
, char *argv
[])
1126 if (common_block_args_process(argc
, argv
, &block
, &count
))
1128 while (count
-- > 0) {
1129 if (ext2fs_test_block_bitmap2(current_fs
->block_map
,block
))
1130 printf("Block %llu marked in use\n", block
);
1132 printf("Block %llu not in use\n", block
);
1138 static void modify_u8(char *com
, const char *prompt
,
1139 const char *format
, __u8
*val
)
1145 sprintf(buf
, format
, *val
);
1146 printf("%30s [%s] ", prompt
, buf
);
1147 if (!fgets(buf
, sizeof(buf
), stdin
))
1149 if (buf
[strlen (buf
) - 1] == '\n')
1150 buf
[strlen (buf
) - 1] = '\0';
1153 v
= strtoul(buf
, &tmp
, 0);
1155 com_err(com
, 0, "Bad value - %s", buf
);
1160 static void modify_u16(char *com
, const char *prompt
,
1161 const char *format
, __u16
*val
)
1167 sprintf(buf
, format
, *val
);
1168 printf("%30s [%s] ", prompt
, buf
);
1169 if (!fgets(buf
, sizeof(buf
), stdin
))
1171 if (buf
[strlen (buf
) - 1] == '\n')
1172 buf
[strlen (buf
) - 1] = '\0';
1175 v
= strtoul(buf
, &tmp
, 0);
1177 com_err(com
, 0, "Bad value - %s", buf
);
1182 static void modify_u32(char *com
, const char *prompt
,
1183 const char *format
, __u32
*val
)
1189 sprintf(buf
, format
, *val
);
1190 printf("%30s [%s] ", prompt
, buf
);
1191 if (!fgets(buf
, sizeof(buf
), stdin
))
1193 if (buf
[strlen (buf
) - 1] == '\n')
1194 buf
[strlen (buf
) - 1] = '\0';
1197 v
= strtoul(buf
, &tmp
, 0);
1199 com_err(com
, 0, "Bad value - %s", buf
);
1205 void do_modify_inode(int argc
, char *argv
[])
1207 struct ext2_inode inode
;
1208 ext2_ino_t inode_num
;
1210 unsigned char *frag
, *fsize
;
1213 const char *hex_format
= "0x%x";
1214 const char *octal_format
= "0%o";
1215 const char *decimal_format
= "%d";
1216 const char *unsignedlong_format
= "%lu";
1218 if (common_inode_args_process(argc
, argv
, &inode_num
, CHECK_FS_RW
))
1221 os
= current_fs
->super
->s_creator_os
;
1223 if (debugfs_read_inode(inode_num
, &inode
, argv
[1]))
1226 modify_u16(argv
[0], "Mode", octal_format
, &inode
.i_mode
);
1227 modify_u16(argv
[0], "User ID", decimal_format
, &inode
.i_uid
);
1228 modify_u16(argv
[0], "Group ID", decimal_format
, &inode
.i_gid
);
1229 modify_u32(argv
[0], "Size", unsignedlong_format
, &inode
.i_size
);
1230 modify_u32(argv
[0], "Creation time", decimal_format
, &inode
.i_ctime
);
1231 modify_u32(argv
[0], "Modification time", decimal_format
, &inode
.i_mtime
);
1232 modify_u32(argv
[0], "Access time", decimal_format
, &inode
.i_atime
);
1233 modify_u32(argv
[0], "Deletion time", decimal_format
, &inode
.i_dtime
);
1234 modify_u16(argv
[0], "Link count", decimal_format
, &inode
.i_links_count
);
1235 if (os
== EXT2_OS_LINUX
)
1236 modify_u16(argv
[0], "Block count high", unsignedlong_format
,
1237 &inode
.osd2
.linux2
.l_i_blocks_hi
);
1238 modify_u32(argv
[0], "Block count", unsignedlong_format
, &inode
.i_blocks
);
1239 modify_u32(argv
[0], "File flags", hex_format
, &inode
.i_flags
);
1240 modify_u32(argv
[0], "Generation", hex_format
, &inode
.i_generation
);
1242 modify_u32(argv
[0], "Reserved1", decimal_format
, &inode
.i_reserved1
);
1244 modify_u32(argv
[0], "File acl", decimal_format
, &inode
.i_file_acl
);
1245 if (LINUX_S_ISDIR(inode
.i_mode
))
1246 modify_u32(argv
[0], "Directory acl", decimal_format
, &inode
.i_dir_acl
);
1248 modify_u32(argv
[0], "High 32bits of size", decimal_format
, &inode
.i_size_high
);
1250 if (os
== EXT2_OS_HURD
)
1251 modify_u32(argv
[0], "Translator Block",
1252 decimal_format
, &inode
.osd1
.hurd1
.h_i_translator
);
1254 modify_u32(argv
[0], "Fragment address", decimal_format
, &inode
.i_faddr
);
1257 frag
= &inode
.osd2
.hurd2
.h_i_frag
;
1258 fsize
= &inode
.osd2
.hurd2
.h_i_fsize
;
1264 modify_u8(argv
[0], "Fragment number", decimal_format
, frag
);
1266 modify_u8(argv
[0], "Fragment size", decimal_format
, fsize
);
1268 for (i
=0; i
< EXT2_NDIR_BLOCKS
; i
++) {
1269 sprintf(buf
, "Direct Block #%d", i
);
1270 modify_u32(argv
[0], buf
, decimal_format
, &inode
.i_block
[i
]);
1272 modify_u32(argv
[0], "Indirect Block", decimal_format
,
1273 &inode
.i_block
[EXT2_IND_BLOCK
]);
1274 modify_u32(argv
[0], "Double Indirect Block", decimal_format
,
1275 &inode
.i_block
[EXT2_DIND_BLOCK
]);
1276 modify_u32(argv
[0], "Triple Indirect Block", decimal_format
,
1277 &inode
.i_block
[EXT2_TIND_BLOCK
]);
1278 if (debugfs_write_inode(inode_num
, &inode
, argv
[1]))
1281 #endif /* READ_ONLY */
1283 void do_change_working_dir(int argc
, char *argv
[])
1288 if (common_inode_args_process(argc
, argv
, &inode
, 0))
1291 retval
= ext2fs_check_directory(current_fs
, inode
);
1293 com_err(argv
[1], retval
, 0);
1300 void do_print_working_directory(int argc
, char *argv
[])
1303 char *pathname
= NULL
;
1305 if (common_args_process(argc
, argv
, 1, 1,
1306 "print_working_directory", "", 0))
1309 retval
= ext2fs_get_pathname(current_fs
, cwd
, 0, &pathname
);
1311 com_err(argv
[0], retval
,
1312 "while trying to get pathname of cwd");
1314 printf("[pwd] INODE: %6u PATH: %s\n",
1315 cwd
, pathname
? pathname
: "NULL");
1320 retval
= ext2fs_get_pathname(current_fs
, root
, 0, &pathname
);
1322 com_err(argv
[0], retval
,
1323 "while trying to get pathname of root");
1325 printf("[root] INODE: %6u PATH: %s\n",
1326 root
, pathname
? pathname
: "NULL");
1335 static void make_link(char *sourcename
, char *destname
)
1338 struct ext2_inode inode
;
1341 char *dest
, *cp
, *base_name
;
1344 * Get the source inode
1346 ino
= string_to_inode(sourcename
);
1349 base_name
= strrchr(sourcename
, '/');
1353 base_name
= sourcename
;
1355 * Figure out the destination. First see if it exists and is
1358 if (! (retval
=ext2fs_namei(current_fs
, root
, cwd
, destname
, &dir
)))
1362 * OK, it doesn't exist. See if it is
1363 * '<dir>/basename' or 'basename'
1365 cp
= strrchr(destname
, '/');
1368 dir
= string_to_inode(destname
);
1378 if (debugfs_read_inode(ino
, &inode
, sourcename
))
1381 retval
= ext2fs_link(current_fs
, dir
, dest
, ino
,
1382 ext2_file_type(inode
.i_mode
));
1384 com_err("make_link", retval
, 0);
1389 void do_link(int argc
, char *argv
[])
1391 if (common_args_process(argc
, argv
, 3, 3, "link",
1392 "<source file> <dest_name>", CHECK_FS_RW
))
1395 make_link(argv
[1], argv
[2]);
1398 static int mark_blocks_proc(ext2_filsys fs
, blk64_t
*blocknr
,
1399 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
1400 blk64_t ref_block
EXT2FS_ATTR((unused
)),
1401 int ref_offset
EXT2FS_ATTR((unused
)),
1402 void *private EXT2FS_ATTR((unused
)))
1407 ext2fs_block_alloc_stats2(fs
, block
, +1);
1411 void do_undel(int argc
, char *argv
[])
1414 struct ext2_inode inode
;
1416 if (common_args_process(argc
, argv
, 2, 3, "undelete",
1417 "<inode_num> [dest_name]",
1418 CHECK_FS_RW
| CHECK_FS_BITMAPS
))
1421 ino
= string_to_inode(argv
[1]);
1425 if (debugfs_read_inode(ino
, &inode
, argv
[1]))
1428 if (ext2fs_test_inode_bitmap2(current_fs
->inode_map
, ino
)) {
1429 com_err(argv
[1], 0, "Inode is not marked as deleted");
1434 * XXX this function doesn't handle changing the links count on the
1435 * parent directory when undeleting a directory.
1437 inode
.i_links_count
= LINUX_S_ISDIR(inode
.i_mode
) ? 2 : 1;
1440 if (debugfs_write_inode(ino
, &inode
, argv
[0]))
1443 ext2fs_block_iterate3(current_fs
, ino
, BLOCK_FLAG_READ_ONLY
, NULL
,
1444 mark_blocks_proc
, NULL
);
1446 ext2fs_inode_alloc_stats2(current_fs
, ino
, +1, 0);
1449 make_link(argv
[1], argv
[2]);
1452 static void unlink_file_by_name(char *filename
)
1458 base_name
= strrchr(filename
, '/');
1460 *base_name
++ = '\0';
1461 dir
= string_to_inode(filename
);
1466 base_name
= filename
;
1468 retval
= ext2fs_unlink(current_fs
, dir
, base_name
, 0, 0);
1470 com_err("unlink_file_by_name", retval
, 0);
1474 void do_unlink(int argc
, char *argv
[])
1476 if (common_args_process(argc
, argv
, 2, 2, "link",
1477 "<pathname>", CHECK_FS_RW
))
1480 unlink_file_by_name(argv
[1]);
1482 #endif /* READ_ONLY */
1484 void do_find_free_block(int argc
, char *argv
[])
1486 blk64_t free_blk
, goal
, first_free
= 0;
1491 if ((argc
> 3) || (argc
==2 && *argv
[1] == '?')) {
1492 com_err(argv
[0], 0, "Usage: find_free_block [count [goal]]");
1495 if (check_fs_open(argv
[0]))
1499 count
= strtol(argv
[1],&tmp
,0);
1501 com_err(argv
[0], 0, "Bad count - %s", argv
[1]);
1508 goal
= strtol(argv
[2], &tmp
, 0);
1510 com_err(argv
[0], 0, "Bad goal - %s", argv
[1]);
1515 goal
= current_fs
->super
->s_first_data_block
;
1517 printf("Free blocks found: ");
1518 free_blk
= goal
- 1;
1519 while (count
-- > 0) {
1520 retval
= ext2fs_new_block2(current_fs
, free_blk
+ 1, 0,
1523 if (first_free
== free_blk
)
1526 first_free
= free_blk
;
1528 com_err("ext2fs_new_block", retval
, 0);
1531 printf("%llu ", free_blk
);
1536 void do_find_free_inode(int argc
, char *argv
[])
1538 ext2_ino_t free_inode
, dir
;
1543 if (argc
> 3 || (argc
>1 && *argv
[1] == '?')) {
1544 com_err(argv
[0], 0, "Usage: find_free_inode [dir] [mode]");
1547 if (check_fs_open(argv
[0]))
1551 dir
= strtol(argv
[1], &tmp
, 0);
1553 com_err(argv
[0], 0, "Bad dir - %s", argv
[1]);
1560 mode
= strtol(argv
[2], &tmp
, 0);
1562 com_err(argv
[0], 0, "Bad mode - %s", argv
[2]);
1568 retval
= ext2fs_new_inode(current_fs
, dir
, mode
, 0, &free_inode
);
1570 com_err("ext2fs_new_inode", retval
, 0);
1572 printf("Free inode found: %u\n", free_inode
);
1576 static errcode_t
copy_file(int fd
, ext2_ino_t newfile
, int bufsize
, int make_holes
)
1578 ext2_file_t e2_file
;
1581 unsigned int written
;
1587 retval
= ext2fs_file_open(current_fs
, newfile
,
1588 EXT2_FILE_WRITE
, &e2_file
);
1592 if (!(buf
= (char *) malloc(bufsize
))){
1593 com_err("copy_file", errno
, "can't allocate buffer\n");
1597 /* This is used for checking whether the whole block is zero */
1598 retval
= ext2fs_get_memzero(bufsize
, &zero_buf
);
1600 com_err("copy_file", retval
, "can't allocate buffer\n");
1606 got
= read(fd
, buf
, bufsize
);
1617 /* Check whether all is zero */
1618 cmp
= memcmp(ptr
, zero_buf
, got
);
1620 /* The whole block is zero, make a hole */
1621 retval
= ext2fs_file_lseek(e2_file
, got
, EXT2_SEEK_CUR
, NULL
);
1630 retval
= ext2fs_file_write(e2_file
, ptr
,
1640 ext2fs_free_mem(&zero_buf
);
1641 retval
= ext2fs_file_close(e2_file
);
1646 ext2fs_free_mem(&zero_buf
);
1647 (void) ext2fs_file_close(e2_file
);
1652 void do_write(int argc
, char *argv
[])
1655 struct stat statbuf
;
1658 struct ext2_inode inode
;
1659 int bufsize
= IO_BUFSIZE
;
1662 if (common_args_process(argc
, argv
, 3, 3, "write",
1663 "<native file> <new file>", CHECK_FS_RW
))
1666 fd
= open(argv
[1], O_RDONLY
);
1668 com_err(argv
[1], errno
, 0);
1671 if (fstat(fd
, &statbuf
) < 0) {
1672 com_err(argv
[1], errno
, 0);
1677 retval
= ext2fs_namei(current_fs
, root
, cwd
, argv
[2], &newfile
);
1679 com_err(argv
[0], 0, "The file '%s' already exists\n", argv
[2]);
1684 retval
= ext2fs_new_inode(current_fs
, cwd
, 010755, 0, &newfile
);
1686 com_err(argv
[0], retval
, 0);
1690 printf("Allocated inode: %u\n", newfile
);
1691 retval
= ext2fs_link(current_fs
, cwd
, argv
[2], newfile
,
1693 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
1694 retval
= ext2fs_expand_dir(current_fs
, cwd
);
1696 com_err(argv
[0], retval
, "while expanding directory");
1700 retval
= ext2fs_link(current_fs
, cwd
, argv
[2], newfile
,
1704 com_err(argv
[2], retval
, 0);
1708 if (ext2fs_test_inode_bitmap2(current_fs
->inode_map
,newfile
))
1709 com_err(argv
[0], 0, "Warning: inode already set");
1710 ext2fs_inode_alloc_stats2(current_fs
, newfile
, +1, 0);
1711 memset(&inode
, 0, sizeof(inode
));
1712 inode
.i_mode
= (statbuf
.st_mode
& ~LINUX_S_IFMT
) | LINUX_S_IFREG
;
1713 inode
.i_atime
= inode
.i_ctime
= inode
.i_mtime
=
1714 current_fs
->now
? current_fs
->now
: time(0);
1715 inode
.i_links_count
= 1;
1716 inode
.i_size
= statbuf
.st_size
;
1717 if (current_fs
->super
->s_feature_incompat
&
1718 EXT3_FEATURE_INCOMPAT_EXTENTS
) {
1720 struct ext3_extent_header
*eh
;
1722 eh
= (struct ext3_extent_header
*) &inode
.i_block
[0];
1725 eh
->eh_magic
= EXT3_EXT_MAGIC
;
1726 i
= (sizeof(inode
.i_block
) - sizeof(*eh
)) /
1727 sizeof(struct ext3_extent
);
1728 eh
->eh_max
= ext2fs_cpu_to_le16(i
);
1729 inode
.i_flags
|= EXT4_EXTENTS_FL
;
1731 if (debugfs_write_new_inode(newfile
, &inode
, argv
[0])) {
1735 if (LINUX_S_ISREG(inode
.i_mode
)) {
1736 if (statbuf
.st_blocks
< statbuf
.st_size
/ S_BLKSIZE
) {
1739 * Use I/O blocksize as buffer size when
1740 * copying sparse files.
1742 bufsize
= statbuf
.st_blksize
;
1744 retval
= copy_file(fd
, newfile
, bufsize
, make_holes
);
1746 com_err("copy_file", retval
, 0);
1751 void do_mknod(int argc
, char *argv
[])
1753 unsigned long mode
, major
, minor
;
1756 struct ext2_inode inode
;
1759 if (check_fs_open(argv
[0]))
1761 if (argc
< 3 || argv
[2][1]) {
1763 com_err(argv
[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1766 mode
= minor
= major
= 0;
1767 switch (argv
[2][0]) {
1769 mode
= LINUX_S_IFIFO
;
1770 filetype
= EXT2_FT_FIFO
;
1774 mode
= LINUX_S_IFCHR
;
1775 filetype
= EXT2_FT_CHRDEV
;
1779 mode
= LINUX_S_IFBLK
;
1780 filetype
= EXT2_FT_BLKDEV
;
1788 major
= strtoul(argv
[3], argv
+3, 0);
1789 minor
= strtoul(argv
[4], argv
+4, 0);
1790 if (major
> 65535 || minor
> 65535 || argv
[3][0] || argv
[4][0])
1795 if (check_fs_read_write(argv
[0]))
1797 retval
= ext2fs_new_inode(current_fs
, cwd
, 010755, 0, &newfile
);
1799 com_err(argv
[0], retval
, 0);
1802 printf("Allocated inode: %u\n", newfile
);
1803 retval
= ext2fs_link(current_fs
, cwd
, argv
[1], newfile
, filetype
);
1804 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
1805 retval
= ext2fs_expand_dir(current_fs
, cwd
);
1807 com_err(argv
[0], retval
, "while expanding directory");
1810 retval
= ext2fs_link(current_fs
, cwd
, argv
[1], newfile
,
1814 com_err(argv
[1], retval
, 0);
1817 if (ext2fs_test_inode_bitmap2(current_fs
->inode_map
,newfile
))
1818 com_err(argv
[0], 0, "Warning: inode already set");
1819 ext2fs_inode_alloc_stats2(current_fs
, newfile
, +1, 0);
1820 memset(&inode
, 0, sizeof(inode
));
1821 inode
.i_mode
= mode
;
1822 inode
.i_atime
= inode
.i_ctime
= inode
.i_mtime
=
1823 current_fs
->now
? current_fs
->now
: time(0);
1824 if ((major
< 256) && (minor
< 256)) {
1825 inode
.i_block
[0] = major
*256+minor
;
1826 inode
.i_block
[1] = 0;
1828 inode
.i_block
[0] = 0;
1829 inode
.i_block
[1] = (minor
& 0xff) | (major
<< 8) | ((minor
& ~0xff) << 12);
1831 inode
.i_links_count
= 1;
1832 if (debugfs_write_new_inode(newfile
, &inode
, argv
[0]))
1836 void do_mkdir(int argc
, char *argv
[])
1843 if (common_args_process(argc
, argv
, 2, 2, "mkdir",
1844 "<filename>", CHECK_FS_RW
))
1847 cp
= strrchr(argv
[1], '/');
1850 parent
= string_to_inode(argv
[1]);
1852 com_err(argv
[1], ENOENT
, 0);
1862 retval
= ext2fs_mkdir(current_fs
, parent
, 0, name
);
1863 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
1864 retval
= ext2fs_expand_dir(current_fs
, parent
);
1866 com_err(argv
[0], retval
, "while expanding directory");
1872 com_err("ext2fs_mkdir", retval
, 0);
1878 static int release_blocks_proc(ext2_filsys fs
, blk64_t
*blocknr
,
1879 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
1880 blk64_t ref_block
EXT2FS_ATTR((unused
)),
1881 int ref_offset
EXT2FS_ATTR((unused
)),
1882 void *private EXT2FS_ATTR((unused
)))
1887 ext2fs_block_alloc_stats2(fs
, block
, -1);
1891 static void kill_file_by_inode(ext2_ino_t inode
)
1893 struct ext2_inode inode_buf
;
1895 if (debugfs_read_inode(inode
, &inode_buf
, 0))
1897 inode_buf
.i_dtime
= current_fs
->now
? current_fs
->now
: time(0);
1898 if (debugfs_write_inode(inode
, &inode_buf
, 0))
1900 if (!ext2fs_inode_has_valid_blocks2(current_fs
, &inode_buf
))
1903 ext2fs_block_iterate3(current_fs
, inode
, BLOCK_FLAG_READ_ONLY
, NULL
,
1904 release_blocks_proc
, NULL
);
1906 ext2fs_inode_alloc_stats2(current_fs
, inode
, -1,
1907 LINUX_S_ISDIR(inode_buf
.i_mode
));
1911 void do_kill_file(int argc
, char *argv
[])
1913 ext2_ino_t inode_num
;
1915 if (common_inode_args_process(argc
, argv
, &inode_num
, CHECK_FS_RW
))
1918 kill_file_by_inode(inode_num
);
1921 void do_rm(int argc
, char *argv
[])
1924 ext2_ino_t inode_num
;
1925 struct ext2_inode inode
;
1927 if (common_args_process(argc
, argv
, 2, 2, "rm",
1928 "<filename>", CHECK_FS_RW
))
1931 retval
= ext2fs_namei(current_fs
, root
, cwd
, argv
[1], &inode_num
);
1933 com_err(argv
[0], retval
, "while trying to resolve filename");
1937 if (debugfs_read_inode(inode_num
, &inode
, argv
[0]))
1940 if (LINUX_S_ISDIR(inode
.i_mode
)) {
1941 com_err(argv
[0], 0, "file is a directory");
1945 --inode
.i_links_count
;
1946 if (debugfs_write_inode(inode_num
, &inode
, argv
[0]))
1949 unlink_file_by_name(argv
[1]);
1950 if (inode
.i_links_count
== 0)
1951 kill_file_by_inode(inode_num
);
1959 static int rmdir_proc(ext2_ino_t dir
EXT2FS_ATTR((unused
)),
1960 int entry
EXT2FS_ATTR((unused
)),
1961 struct ext2_dir_entry
*dirent
,
1962 int offset
EXT2FS_ATTR((unused
)),
1963 int blocksize
EXT2FS_ATTR((unused
)),
1964 char *buf
EXT2FS_ATTR((unused
)),
1967 struct rd_struct
*rds
= (struct rd_struct
*) private;
1969 if (dirent
->inode
== 0)
1971 if (((dirent
->name_len
&0xFF) == 1) && (dirent
->name
[0] == '.'))
1973 if (((dirent
->name_len
&0xFF) == 2) && (dirent
->name
[0] == '.') &&
1974 (dirent
->name
[1] == '.')) {
1975 rds
->parent
= dirent
->inode
;
1982 void do_rmdir(int argc
, char *argv
[])
1985 ext2_ino_t inode_num
;
1986 struct ext2_inode inode
;
1987 struct rd_struct rds
;
1989 if (common_args_process(argc
, argv
, 2, 2, "rmdir",
1990 "<filename>", CHECK_FS_RW
))
1993 retval
= ext2fs_namei(current_fs
, root
, cwd
, argv
[1], &inode_num
);
1995 com_err(argv
[0], retval
, "while trying to resolve filename");
1999 if (debugfs_read_inode(inode_num
, &inode
, argv
[0]))
2002 if (!LINUX_S_ISDIR(inode
.i_mode
)) {
2003 com_err(argv
[0], 0, "file is not a directory");
2010 retval
= ext2fs_dir_iterate2(current_fs
, inode_num
, 0,
2011 0, rmdir_proc
, &rds
);
2013 com_err(argv
[0], retval
, "while iterating over directory");
2016 if (rds
.empty
== 0) {
2017 com_err(argv
[0], 0, "directory not empty");
2021 inode
.i_links_count
= 0;
2022 if (debugfs_write_inode(inode_num
, &inode
, argv
[0]))
2025 unlink_file_by_name(argv
[1]);
2026 kill_file_by_inode(inode_num
);
2029 if (debugfs_read_inode(rds
.parent
, &inode
, argv
[0]))
2031 if (inode
.i_links_count
> 1)
2032 inode
.i_links_count
--;
2033 if (debugfs_write_inode(rds
.parent
, &inode
, argv
[0]))
2037 #endif /* READ_ONLY */
2039 void do_show_debugfs_params(int argc
EXT2FS_ATTR((unused
)),
2040 char *argv
[] EXT2FS_ATTR((unused
)))
2043 printf("Open mode: read-%s\n",
2044 current_fs
->flags
& EXT2_FLAG_RW
? "write" : "only");
2045 printf("Filesystem in use: %s\n",
2046 current_fs
? current_fs
->device_name
: "--none--");
2050 void do_expand_dir(int argc
, char *argv
[])
2055 if (common_inode_args_process(argc
, argv
, &inode
, CHECK_FS_RW
))
2058 retval
= ext2fs_expand_dir(current_fs
, inode
);
2060 com_err("ext2fs_expand_dir", retval
, 0);
2064 void do_features(int argc
, char *argv
[])
2068 if (check_fs_open(argv
[0]))
2071 if ((argc
!= 1) && check_fs_read_write(argv
[0]))
2073 for (i
=1; i
< argc
; i
++) {
2074 if (e2p_edit_feature(argv
[i
],
2075 ¤t_fs
->super
->s_feature_compat
, 0))
2076 com_err(argv
[0], 0, "Unknown feature: %s\n",
2079 ext2fs_mark_super_dirty(current_fs
);
2081 print_features(current_fs
->super
, stdout
);
2083 #endif /* READ_ONLY */
2085 void do_bmap(int argc
, char *argv
[])
2092 if (common_args_process(argc
, argv
, 3, 3, argv
[0],
2093 "<file> logical_blk", 0))
2096 ino
= string_to_inode(argv
[1]);
2099 blk
= parse_ulong(argv
[2], argv
[0], "logical_block", &err
);
2101 errcode
= ext2fs_bmap2(current_fs
, ino
, 0, 0, 0, blk
, 0, &pblk
);
2103 com_err("argv[0]", errcode
,
2104 "while mapping logical block %llu\n", blk
);
2107 printf("%llu\n", pblk
);
2110 void do_imap(int argc
, char *argv
[])
2113 unsigned long group
, block
, block_nr
, offset
;
2115 if (common_args_process(argc
, argv
, 2, 2, argv
[0],
2118 ino
= string_to_inode(argv
[1]);
2122 group
= (ino
- 1) / EXT2_INODES_PER_GROUP(current_fs
->super
);
2123 offset
= ((ino
- 1) % EXT2_INODES_PER_GROUP(current_fs
->super
)) *
2124 EXT2_INODE_SIZE(current_fs
->super
);
2125 block
= offset
>> EXT2_BLOCK_SIZE_BITS(current_fs
->super
);
2126 if (!ext2fs_inode_table_loc(current_fs
, (unsigned)group
)) {
2127 com_err(argv
[0], 0, "Inode table for group %lu is missing\n",
2131 block_nr
= ext2fs_inode_table_loc(current_fs
, (unsigned)group
) +
2133 offset
&= (EXT2_BLOCK_SIZE(current_fs
->super
) - 1);
2135 printf("Inode %d is part of block group %lu\n"
2136 "\tlocated at block %lu, offset 0x%04lx\n", ino
, group
,
2142 void do_set_current_time(int argc
, char *argv
[])
2146 if (common_args_process(argc
, argv
, 2, 2, argv
[0],
2150 now
= string_to_time(argv
[1]);
2151 if (now
== ((time_t) -1)) {
2152 com_err(argv
[0], 0, "Couldn't parse argument as a time: %s\n",
2157 printf("Setting current time to %s\n", time_to_string(now
));
2158 current_fs
->now
= now
;
2161 #endif /* READ_ONLY */
2163 static int find_supp_feature(__u32
*supp
, int feature_type
, char *name
)
2165 int compat
, bit
, ret
;
2166 unsigned int feature_mask
;
2169 if (feature_type
== E2P_FS_FEATURE
)
2170 ret
= e2p_string2feature(name
, &compat
, &feature_mask
);
2172 ret
= e2p_jrnl_string2feature(name
, &compat
,
2177 if (!(supp
[compat
] & feature_mask
))
2180 for (compat
= 0; compat
< 3; compat
++) {
2181 for (bit
= 0, feature_mask
= 1; bit
< 32;
2182 bit
++, feature_mask
<<= 1) {
2183 if (supp
[compat
] & feature_mask
) {
2184 if (feature_type
== E2P_FS_FEATURE
)
2185 fprintf(stdout
, " %s",
2186 e2p_feature2string(compat
,
2189 fprintf(stdout
, " %s",
2190 e2p_jrnl_feature2string(compat
,
2195 fprintf(stdout
, "\n");
2201 void do_supported_features(int argc
, char *argv
[])
2204 __u32 supp
[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP
,
2205 EXT2_LIB_FEATURE_INCOMPAT_SUPP
,
2206 EXT2_LIB_FEATURE_RO_COMPAT_SUPP
};
2207 __u32 jrnl_supp
[3] = { JFS_KNOWN_COMPAT_FEATURES
,
2208 JFS_KNOWN_INCOMPAT_FEATURES
,
2209 JFS_KNOWN_ROCOMPAT_FEATURES
};
2212 ret
= find_supp_feature(supp
, E2P_FS_FEATURE
, argv
[1]);
2214 ret
= find_supp_feature(jrnl_supp
, E2P_JOURNAL_FEATURE
,
2218 com_err(argv
[0], 0, "Unknown feature: %s\n", argv
[1]);
2220 fprintf(stdout
, "Supported feature: %s\n", argv
[1]);
2222 fprintf(stdout
, "Supported features:");
2223 ret
= find_supp_feature(supp
, E2P_FS_FEATURE
, NULL
);
2224 ret
= find_supp_feature(jrnl_supp
, E2P_JOURNAL_FEATURE
, NULL
);
2229 void do_punch(int argc
, char *argv
[])
2236 if (common_args_process(argc
, argv
, 3, 4, argv
[0],
2237 "<file> start_blk [end_blk]",
2238 CHECK_FS_RW
| CHECK_FS_BITMAPS
))
2241 ino
= string_to_inode(argv
[1]);
2244 start
= parse_ulong(argv
[2], argv
[0], "logical_block", &err
);
2246 end
= parse_ulong(argv
[3], argv
[0], "logical_block", &err
);
2250 errcode
= ext2fs_punch(current_fs
, ino
, 0, 0, start
, end
);
2253 com_err(argv
[0], errcode
,
2254 "while truncating inode %u from %llu to %llu\n", ino
,
2255 (unsigned long long) start
, (unsigned long long) end
);
2259 #endif /* READ_ONLY */
2261 void do_symlink(int argc
, char *argv
[])
2265 char *name
, *target
;
2268 if (common_args_process(argc
, argv
, 3, 3, "symlink",
2269 "<filename> <target>", CHECK_FS_RW
))
2272 cp
= strrchr(argv
[1], '/');
2275 parent
= string_to_inode(argv
[1]);
2277 com_err(argv
[1], ENOENT
, 0);
2288 retval
= ext2fs_symlink(current_fs
, parent
, 0, name
, target
);
2289 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
2290 retval
= ext2fs_expand_dir(current_fs
, parent
);
2292 com_err(argv
[0], retval
, "while expanding directory");
2298 com_err("ext2fs_symlink", retval
, 0);
2304 void do_dump_mmp(int argc
EXT2FS_ATTR((unused
)), char *argv
[])
2306 struct ext2_super_block
*sb
;
2307 struct mmp_struct
*mmp_s
;
2309 errcode_t retval
= 0;
2311 if (check_fs_open(argv
[0]))
2314 sb
= current_fs
->super
;
2315 if (sb
->s_mmp_block
<= sb
->s_first_data_block
||
2316 sb
->s_mmp_block
>= ext2fs_blocks_count(sb
)) {
2317 com_err(argv
[0], EXT2_ET_MMP_BAD_BLOCK
, "while dumping it.\n");
2321 if (current_fs
->mmp_buf
== NULL
) {
2322 retval
= ext2fs_get_mem(current_fs
->blocksize
,
2323 ¤t_fs
->mmp_buf
);
2325 com_err(argv
[0], retval
, "allocating MMP buffer.\n");
2330 mmp_s
= current_fs
->mmp_buf
;
2332 retval
= ext2fs_mmp_read(current_fs
, current_fs
->super
->s_mmp_block
,
2333 current_fs
->mmp_buf
);
2335 com_err(argv
[0], retval
, "reading MMP block.\n");
2339 t
= mmp_s
->mmp_time
;
2340 fprintf(stdout
, "block_number: %llu\n", current_fs
->super
->s_mmp_block
);
2341 fprintf(stdout
, "update_interval: %d\n",
2342 current_fs
->super
->s_mmp_update_interval
);
2343 fprintf(stdout
, "check_interval: %d\n", mmp_s
->mmp_check_interval
);
2344 fprintf(stdout
, "sequence: %08x\n", mmp_s
->mmp_seq
);
2345 fprintf(stdout
, "time: %lld -- %s", mmp_s
->mmp_time
, ctime(&t
));
2346 fprintf(stdout
, "node_name: %s\n", mmp_s
->mmp_nodename
);
2347 fprintf(stdout
, "device_name: %s\n", mmp_s
->mmp_bdevname
);
2348 fprintf(stdout
, "magic: 0x%x\n", mmp_s
->mmp_magic
);
2351 static int source_file(const char *cmd_file
, int ss_idx
)
2356 int exit_status
= 0;
2359 if (strcmp(cmd_file
, "-") == 0)
2362 f
= fopen(cmd_file
, "r");
2370 setbuf(stdout
, NULL
);
2371 setbuf(stderr
, NULL
);
2373 if (fgets(buf
, sizeof(buf
), f
) == NULL
)
2375 cp
= strchr(buf
, '\n');
2378 cp
= strchr(buf
, '\r');
2381 printf("debugfs: %s\n", buf
);
2382 retval
= ss_execute_line(ss_idx
, buf
);
2384 ss_perror(ss_idx
, retval
, buf
);
2393 int main(int argc
, char **argv
)
2397 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2398 "[-R request] [-V] ["
2404 int open_flags
= EXT2_FLAG_SOFTSUPP_FEATURES
| EXT2_FLAG_64BITS
;
2406 int exit_status
= 0;
2408 blk64_t superblock
= 0;
2409 blk64_t blocksize
= 0;
2410 int catastrophic
= 0;
2411 char *data_filename
= 0;
2413 const char *opt_string
= "icR:f:b:s:Vd:D";
2415 const char *opt_string
= "iwcR:f:b:s:Vd:D";
2418 if (debug_prog_name
== 0)
2420 debug_prog_name
= "rdebugfs";
2422 debug_prog_name
= "debugfs";
2424 add_error_table(&et_ext2_error_table
);
2425 fprintf (stderr
, "%s %s (%s)\n", debug_prog_name
,
2426 E2FSPROGS_VERSION
, E2FSPROGS_DATE
);
2428 while ((c
= getopt (argc
, argv
, opt_string
)) != EOF
) {
2437 data_filename
= optarg
;
2440 open_flags
|= EXT2_FLAG_IMAGE_FILE
;
2444 open_flags
|= EXT2_FLAG_RW
;
2448 open_flags
|= EXT2_FLAG_DIRECT_IO
;
2451 blocksize
= parse_ulong(optarg
, argv
[0],
2455 superblock
= parse_ulong(optarg
, argv
[0],
2456 "superblock number", 0);
2462 /* Print version number and exit */
2463 fprintf(stderr
, "\tUsing %s\n",
2464 error_message(EXT2_ET_BASE
));
2467 com_err(argv
[0], 0, usage
, debug_prog_name
);
2472 open_filesystem(argv
[optind
], open_flags
,
2473 superblock
, blocksize
, catastrophic
,
2476 sci_idx
= ss_create_invocation(debug_prog_name
, "0.0", (char *) NULL
,
2477 &debug_cmds
, &retval
);
2479 ss_perror(sci_idx
, retval
, "creating invocation");
2482 ss_get_readline(sci_idx
);
2484 (void) ss_add_request_table (sci_idx
, &ss_std_requests
, 1, &retval
);
2486 ss_perror(sci_idx
, retval
, "adding standard requests");
2490 ss_add_request_table (sci_idx
, extra_cmds
, 1, &retval
);
2492 ss_perror(sci_idx
, retval
, "adding extra requests");
2497 retval
= ss_execute_line(sci_idx
, request
);
2499 ss_perror(sci_idx
, retval
, request
);
2502 } else if (cmd_file
) {
2503 exit_status
= source_file(cmd_file
, sci_idx
);
2508 ss_delete_invocation(sci_idx
);
2513 remove_error_table(&et_ext2_error_table
);