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] "
205 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] "
209 "<device>\n", argv
[0]);
212 void do_lcd(int argc
, char **argv
)
215 com_err(argv
[0], 0, "Usage: %s %s", argv
[0], "<native dir>");
219 if (chdir(argv
[1]) == -1) {
220 com_err(argv
[0], errno
,
221 "while trying to change native directory to %s",
227 static void close_filesystem(NOARGS
)
231 if (current_fs
->flags
& EXT2_FLAG_IB_DIRTY
) {
232 retval
= ext2fs_write_inode_bitmap(current_fs
);
234 com_err("ext2fs_write_inode_bitmap", retval
, 0);
236 if (current_fs
->flags
& EXT2_FLAG_BB_DIRTY
) {
237 retval
= ext2fs_write_block_bitmap(current_fs
);
239 com_err("ext2fs_write_block_bitmap", retval
, 0);
241 retval
= ext2fs_close(current_fs
);
243 com_err("ext2fs_close", retval
, 0);
248 void do_close_filesys(int argc
, char **argv
)
252 if (check_fs_open(argv
[0]))
256 while ((c
= getopt (argc
, argv
, "a")) != EOF
) {
259 current_fs
->flags
&= ~EXT2_FLAG_MASTER_SB_ONLY
;
268 com_err(0, 0, "Usage: close_filesys [-a]");
276 void do_init_filesys(int argc
, char **argv
)
278 struct ext2_super_block param
;
282 if (common_args_process(argc
, argv
, 3, 3, "initialize",
283 "<device> <blocksize>", CHECK_FS_NOTOPEN
))
286 memset(¶m
, 0, sizeof(struct ext2_super_block
));
287 ext2fs_blocks_count_set(¶m
, parse_ulong(argv
[2], argv
[0],
288 "blocks count", &err
));
291 retval
= ext2fs_initialize(argv
[1], 0, ¶m
,
292 unix_io_manager
, ¤t_fs
);
294 com_err(argv
[1], retval
, "while initializing filesystem");
298 root
= cwd
= EXT2_ROOT_INO
;
302 static void print_features(struct ext2_super_block
* s
, FILE *f
)
305 __u32
*mask
= &s
->s_feature_compat
, m
;
307 fputs("Filesystem features:", f
);
308 for (i
=0; i
<3; i
++,mask
++) {
309 for (j
=0,m
=1; j
< 32; j
++, m
<<=1) {
311 fprintf(f
, " %s", e2p_feature2string(i
, m
));
320 #endif /* READ_ONLY */
322 static void print_bg_opts(ext2_filsys fs
, dgrp_t group
, int mask
,
323 const char *str
, int *first
, FILE *f
)
325 if (ext2fs_bg_flags_test(fs
, group
, mask
)) {
335 void do_show_super_stats(int argc
, char *argv
[])
337 const char *units
="block";
340 int c
, header_only
= 0;
341 int numdirs
= 0, first
, gdt_csum
;
344 while ((c
= getopt (argc
, argv
, "h")) != EOF
) {
353 if (optind
!= argc
) {
356 if (check_fs_open(argv
[0]))
360 if (EXT2_HAS_RO_COMPAT_FEATURE(current_fs
->super
,
361 EXT4_FEATURE_RO_COMPAT_BIGALLOC
))
364 list_super2(current_fs
->super
, out
);
365 for (i
=0; i
< current_fs
->group_desc_count
; i
++)
366 numdirs
+= ext2fs_bg_used_dirs_count(current_fs
, i
);
367 fprintf(out
, "Directories: %d\n", numdirs
);
374 gdt_csum
= EXT2_HAS_RO_COMPAT_FEATURE(current_fs
->super
,
375 EXT4_FEATURE_RO_COMPAT_GDT_CSUM
);
376 for (i
= 0; i
< current_fs
->group_desc_count
; i
++) {
377 fprintf(out
, " Group %2d: block bitmap at %llu, "
378 "inode bitmap at %llu, "
379 "inode table at %llu\n"
383 i
, ext2fs_block_bitmap_loc(current_fs
, i
),
384 ext2fs_inode_bitmap_loc(current_fs
, i
),
385 ext2fs_inode_table_loc(current_fs
, i
),
386 ext2fs_bg_free_blocks_count(current_fs
, i
), units
,
387 ext2fs_bg_free_blocks_count(current_fs
, i
) != 1 ?
389 ext2fs_bg_free_inodes_count(current_fs
, i
),
390 ext2fs_bg_free_inodes_count(current_fs
, i
) != 1 ?
392 ext2fs_bg_used_dirs_count(current_fs
, i
),
393 ext2fs_bg_used_dirs_count(current_fs
, i
) != 1 ? "directories"
394 : "directory", gdt_csum
? ", " : "\n");
396 fprintf(out
, "%u unused %s\n",
397 ext2fs_bg_itable_unused(current_fs
, i
),
398 ext2fs_bg_itable_unused(current_fs
, i
) != 1 ?
401 print_bg_opts(current_fs
, i
, EXT2_BG_INODE_UNINIT
, "Inode not init",
403 print_bg_opts(current_fs
, i
, EXT2_BG_BLOCK_UNINIT
, "Block not init",
406 fprintf(out
, "%sChecksum 0x%04x",
407 first
? " [":", ", ext2fs_bg_checksum(current_fs
, i
));
416 fprintf(stderr
, "%s: Usage: show_super [-h]\n", argv
[0]);
420 void do_dirty_filesys(int argc
EXT2FS_ATTR((unused
)),
421 char **argv
EXT2FS_ATTR((unused
)))
423 if (check_fs_open(argv
[0]))
425 if (check_fs_read_write(argv
[0]))
428 if (argv
[1] && !strcmp(argv
[1], "-clean"))
429 current_fs
->super
->s_state
|= EXT2_VALID_FS
;
431 current_fs
->super
->s_state
&= ~EXT2_VALID_FS
;
432 ext2fs_mark_super_dirty(current_fs
);
434 #endif /* READ_ONLY */
436 struct list_blocks_struct
{
439 blk64_t first_block
, last_block
;
440 e2_blkcnt_t first_bcnt
, last_bcnt
;
444 static void finish_range(struct list_blocks_struct
*lb
)
446 if (lb
->first_block
== 0)
451 fprintf(lb
->f
, ", ");
452 if (lb
->first_block
== lb
->last_block
)
453 fprintf(lb
->f
, "(%lld):%llu",
454 (long long)lb
->first_bcnt
, lb
->first_block
);
456 fprintf(lb
->f
, "(%lld-%lld):%llu-%llu",
457 (long long)lb
->first_bcnt
, (long long)lb
->last_bcnt
,
458 lb
->first_block
, lb
->last_block
);
462 static int list_blocks_proc(ext2_filsys fs
EXT2FS_ATTR((unused
)),
463 blk64_t
*blocknr
, e2_blkcnt_t blockcnt
,
464 blk64_t ref_block
EXT2FS_ATTR((unused
)),
465 int ref_offset
EXT2FS_ATTR((unused
)),
468 struct list_blocks_struct
*lb
= (struct list_blocks_struct
*) private;
473 * See if we can add on to the existing range (if it exists)
475 if (lb
->first_block
&&
476 (lb
->last_block
+1 == *blocknr
) &&
477 (lb
->last_bcnt
+1 == blockcnt
)) {
478 lb
->last_block
= *blocknr
;
479 lb
->last_bcnt
= blockcnt
;
486 lb
->first_block
= lb
->last_block
= *blocknr
;
487 lb
->first_bcnt
= lb
->last_bcnt
= blockcnt
;
491 * Not a normal block. Always force a new range.
497 fprintf(lb
->f
, ", ");
499 fprintf(lb
->f
, "(IND):%llu", (unsigned long long) *blocknr
);
500 else if (blockcnt
== -2)
501 fprintf(lb
->f
, "(DIND):%llu", (unsigned long long) *blocknr
);
502 else if (blockcnt
== -3)
503 fprintf(lb
->f
, "(TIND):%llu", (unsigned long long) *blocknr
);
507 static void dump_xattr_string(FILE *out
, const char *str
, int len
)
512 /* check: is string "printable enough?" */
513 for (i
= 0; i
< len
; i
++)
517 if (printable
<= len
*7/8)
520 for (i
= 0; i
< len
; i
++)
522 fprintf(out
, isprint(str
[i
]) ? "%c" : "\\%03o",
523 (unsigned char)str
[i
]);
525 fprintf(out
, "%02x ", (unsigned char)str
[i
]);
528 static void internal_dump_inode_extra(FILE *out
,
529 const char *prefix
EXT2FS_ATTR((unused
)),
530 ext2_ino_t inode_num
EXT2FS_ATTR((unused
)),
531 struct ext2_inode_large
*inode
)
533 struct ext2_ext_attr_entry
*entry
;
536 unsigned int storage_size
;
538 fprintf(out
, "Size of extra inode fields: %u\n", inode
->i_extra_isize
);
539 if (inode
->i_extra_isize
> EXT2_INODE_SIZE(current_fs
->super
) -
540 EXT2_GOOD_OLD_INODE_SIZE
) {
541 fprintf(stderr
, "invalid inode->i_extra_isize (%u)\n",
542 inode
->i_extra_isize
);
545 storage_size
= EXT2_INODE_SIZE(current_fs
->super
) -
546 EXT2_GOOD_OLD_INODE_SIZE
-
547 inode
->i_extra_isize
;
548 magic
= (__u32
*)((char *)inode
+ EXT2_GOOD_OLD_INODE_SIZE
+
549 inode
->i_extra_isize
);
550 if (*magic
== EXT2_EXT_ATTR_MAGIC
) {
551 fprintf(out
, "Extended attributes stored in inode body: \n");
552 end
= (char *) inode
+ EXT2_INODE_SIZE(current_fs
->super
);
553 start
= (char *) magic
+ sizeof(__u32
);
554 entry
= (struct ext2_ext_attr_entry
*) start
;
555 while (!EXT2_EXT_IS_LAST_ENTRY(entry
)) {
556 struct ext2_ext_attr_entry
*next
=
557 EXT2_EXT_ATTR_NEXT(entry
);
558 if (entry
->e_value_size
> storage_size
||
559 (char *) next
>= end
) {
560 fprintf(out
, "invalid EA entry in inode\n");
564 dump_xattr_string(out
, EXT2_EXT_ATTR_NAME(entry
),
566 fprintf(out
, " = \"");
567 dump_xattr_string(out
, start
+ entry
->e_value_offs
,
568 entry
->e_value_size
);
569 fprintf(out
, "\" (%u)\n", entry
->e_value_size
);
575 static void dump_blocks(FILE *f
, const char *prefix
, ext2_ino_t inode
)
577 struct list_blocks_struct lb
;
579 fprintf(f
, "%sBLOCKS:\n%s", prefix
, prefix
);
584 ext2fs_block_iterate3(current_fs
, inode
, BLOCK_FLAG_READ_ONLY
, NULL
,
585 list_blocks_proc
, (void *)&lb
);
588 fprintf(f
, "\n%sTOTAL: %lld\n", prefix
, (long long)lb
.total
);
592 static int int_log10(unsigned long long arg
)
604 #define DUMP_LEAF_EXTENTS 0x01
605 #define DUMP_NODE_EXTENTS 0x02
606 #define DUMP_EXTENT_TABLE 0x04
608 static void dump_extents(FILE *f
, const char *prefix
, ext2_ino_t ino
,
609 int flags
, int logical_width
, int physical_width
)
611 ext2_extent_handle_t handle
;
612 struct ext2fs_extent extent
;
613 struct ext2_extent_info info
;
614 int op
= EXT2_EXTENT_ROOT
;
615 unsigned int printed
= 0;
618 errcode
= ext2fs_extent_open(current_fs
, ino
, &handle
);
622 if (flags
& DUMP_EXTENT_TABLE
)
623 fprintf(f
, "Level Entries %*s %*s Length Flags\n",
624 (logical_width
*2)+3, "Logical",
625 (physical_width
*2)+3, "Physical");
627 fprintf(f
, "%sEXTENTS:\n%s", prefix
, prefix
);
630 errcode
= ext2fs_extent_get(handle
, op
, &extent
);
635 op
= EXT2_EXTENT_NEXT
;
637 if (extent
.e_flags
& EXT2_EXTENT_FLAGS_SECOND_VISIT
)
640 if (extent
.e_flags
& EXT2_EXTENT_FLAGS_LEAF
) {
641 if ((flags
& DUMP_LEAF_EXTENTS
) == 0)
644 if ((flags
& DUMP_NODE_EXTENTS
) == 0)
648 errcode
= ext2fs_extent_get_info(handle
, &info
);
652 if (!(extent
.e_flags
& EXT2_EXTENT_FLAGS_LEAF
)) {
653 if (extent
.e_flags
& EXT2_EXTENT_FLAGS_SECOND_VISIT
)
656 if (flags
& DUMP_EXTENT_TABLE
) {
657 fprintf(f
, "%2d/%2d %3d/%3d %*llu - %*llu "
659 info
.curr_level
, info
.max_depth
,
660 info
.curr_entry
, info
.num_entries
,
664 extent
.e_lblk
+ (extent
.e_len
- 1),
667 physical_width
+3, "", extent
.e_len
);
671 fprintf(f
, "%s(ETB%d):%lld",
672 printed
? ", " : "", info
.curr_level
,
678 if (flags
& DUMP_EXTENT_TABLE
) {
679 fprintf(f
, "%2d/%2d %3d/%3d %*llu - %*llu "
680 "%*llu - %*llu %6u %s\n",
681 info
.curr_level
, info
.max_depth
,
682 info
.curr_entry
, info
.num_entries
,
686 extent
.e_lblk
+ (extent
.e_len
- 1),
690 extent
.e_pblk
+ (extent
.e_len
- 1),
692 extent
.e_flags
& EXT2_EXTENT_FLAGS_UNINIT
?
697 if (extent
.e_len
== 0)
699 else if (extent
.e_len
== 1)
704 extent
.e_flags
& EXT2_EXTENT_FLAGS_UNINIT
?
709 "%s(%lld-%lld%s):%lld-%lld",
712 extent
.e_lblk
+ (extent
.e_len
- 1),
713 extent
.e_flags
& EXT2_EXTENT_FLAGS_UNINIT
?
716 extent
.e_pblk
+ (extent
.e_len
- 1));
723 void internal_dump_inode(FILE *out
, const char *prefix
,
724 ext2_ino_t inode_num
, struct ext2_inode
*inode
,
729 int os
= current_fs
->super
->s_creator_os
;
730 struct ext2_inode_large
*large_inode
;
731 int is_large_inode
= 0;
733 if (EXT2_INODE_SIZE(current_fs
->super
) > EXT2_GOOD_OLD_INODE_SIZE
)
735 large_inode
= (struct ext2_inode_large
*) inode
;
737 if (LINUX_S_ISDIR(inode
->i_mode
)) i_type
= "directory";
738 else if (LINUX_S_ISREG(inode
->i_mode
)) i_type
= "regular";
739 else if (LINUX_S_ISLNK(inode
->i_mode
)) i_type
= "symlink";
740 else if (LINUX_S_ISBLK(inode
->i_mode
)) i_type
= "block special";
741 else if (LINUX_S_ISCHR(inode
->i_mode
)) i_type
= "character special";
742 else if (LINUX_S_ISFIFO(inode
->i_mode
)) i_type
= "FIFO";
743 else if (LINUX_S_ISSOCK(inode
->i_mode
)) i_type
= "socket";
744 else i_type
= "bad type";
745 fprintf(out
, "%sInode: %u Type: %s ", prefix
, inode_num
, i_type
);
746 fprintf(out
, "%sMode: %04o Flags: 0x%x\n",
747 prefix
, inode
->i_mode
& 0777, inode
->i_flags
);
748 if (is_large_inode
&& large_inode
->i_extra_isize
>= 24) {
749 fprintf(out
, "%sGeneration: %u Version: 0x%08x:%08x\n",
750 prefix
, inode
->i_generation
, large_inode
->i_version_hi
,
751 inode
->osd1
.linux1
.l_i_version
);
753 fprintf(out
, "%sGeneration: %u Version: 0x%08x\n", prefix
,
754 inode
->i_generation
, inode
->osd1
.linux1
.l_i_version
);
756 fprintf(out
, "%sUser: %5d Group: %5d Size: ",
757 prefix
, inode_uid(*inode
), inode_gid(*inode
));
758 if (LINUX_S_ISREG(inode
->i_mode
))
759 fprintf(out
, "%llu\n", EXT2_I_SIZE(inode
));
761 fprintf(out
, "%d\n", inode
->i_size
);
762 if (os
== EXT2_OS_HURD
)
764 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
766 inode
->i_file_acl
, LINUX_S_ISDIR(inode
->i_mode
) ? inode
->i_dir_acl
: 0,
767 inode
->osd1
.hurd1
.h_i_translator
);
769 fprintf(out
, "%sFile ACL: %llu Directory ACL: %d\n",
771 inode
->i_file_acl
| ((long long)
772 (inode
->osd2
.linux2
.l_i_file_acl_high
) << 32),
773 LINUX_S_ISDIR(inode
->i_mode
) ? inode
->i_dir_acl
: 0);
774 if (os
== EXT2_OS_LINUX
)
775 fprintf(out
, "%sLinks: %d Blockcount: %llu\n",
776 prefix
, inode
->i_links_count
,
777 (((unsigned long long)
778 inode
->osd2
.linux2
.l_i_blocks_hi
<< 32)) +
781 fprintf(out
, "%sLinks: %d Blockcount: %u\n",
782 prefix
, inode
->i_links_count
, inode
->i_blocks
);
785 frag
= inode
->osd2
.hurd2
.h_i_frag
;
786 fsize
= inode
->osd2
.hurd2
.h_i_fsize
;
791 fprintf(out
, "%sFragment: Address: %d Number: %d Size: %d\n",
792 prefix
, inode
->i_faddr
, frag
, fsize
);
793 if (is_large_inode
&& large_inode
->i_extra_isize
>= 24) {
794 fprintf(out
, "%s ctime: 0x%08x:%08x -- %s", prefix
,
795 inode
->i_ctime
, large_inode
->i_ctime_extra
,
796 time_to_string(inode
->i_ctime
));
797 fprintf(out
, "%s atime: 0x%08x:%08x -- %s", prefix
,
798 inode
->i_atime
, large_inode
->i_atime_extra
,
799 time_to_string(inode
->i_atime
));
800 fprintf(out
, "%s mtime: 0x%08x:%08x -- %s", prefix
,
801 inode
->i_mtime
, large_inode
->i_mtime_extra
,
802 time_to_string(inode
->i_mtime
));
803 fprintf(out
, "%scrtime: 0x%08x:%08x -- %s", prefix
,
804 large_inode
->i_crtime
, large_inode
->i_crtime_extra
,
805 time_to_string(large_inode
->i_crtime
));
807 fprintf(out
, "%sctime: 0x%08x -- %s", prefix
, inode
->i_ctime
,
808 time_to_string(inode
->i_ctime
));
809 fprintf(out
, "%satime: 0x%08x -- %s", prefix
, inode
->i_atime
,
810 time_to_string(inode
->i_atime
));
811 fprintf(out
, "%smtime: 0x%08x -- %s", prefix
, inode
->i_mtime
,
812 time_to_string(inode
->i_mtime
));
815 fprintf(out
, "%sdtime: 0x%08x -- %s", prefix
, inode
->i_dtime
,
816 time_to_string(inode
->i_dtime
));
817 if (EXT2_INODE_SIZE(current_fs
->super
) > EXT2_GOOD_OLD_INODE_SIZE
)
818 internal_dump_inode_extra(out
, prefix
, inode_num
,
819 (struct ext2_inode_large
*) inode
);
820 if (LINUX_S_ISLNK(inode
->i_mode
) && ext2fs_inode_data_blocks(current_fs
,inode
) == 0)
821 fprintf(out
, "%sFast_link_dest: %.*s\n", prefix
,
822 (int) inode
->i_size
, (char *)inode
->i_block
);
823 else if (LINUX_S_ISBLK(inode
->i_mode
) || LINUX_S_ISCHR(inode
->i_mode
)) {
827 if (inode
->i_block
[0]) {
828 major
= (inode
->i_block
[0] >> 8) & 255;
829 minor
= inode
->i_block
[0] & 255;
832 major
= (inode
->i_block
[1] & 0xfff00) >> 8;
833 minor
= ((inode
->i_block
[1] & 0xff) |
834 ((inode
->i_block
[1] >> 12) & 0xfff00));
835 devnote
= "(New-style) ";
837 fprintf(out
, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
838 devnote
, major
, minor
, major
, minor
);
839 } else if (do_dump_blocks
) {
840 if (inode
->i_flags
& EXT4_EXTENTS_FL
)
841 dump_extents(out
, prefix
, inode_num
,
842 DUMP_LEAF_EXTENTS
|DUMP_NODE_EXTENTS
, 0, 0);
844 dump_blocks(out
, prefix
, inode_num
);
848 static void dump_inode(ext2_ino_t inode_num
, struct ext2_inode
*inode
)
853 internal_dump_inode(out
, "", inode_num
, inode
, 1);
857 void do_stat(int argc
, char *argv
[])
860 struct ext2_inode
* inode_buf
;
862 if (check_fs_open(argv
[0]))
865 inode_buf
= (struct ext2_inode
*)
866 malloc(EXT2_INODE_SIZE(current_fs
->super
));
868 fprintf(stderr
, "do_stat: can't allocate buffer\n");
872 if (common_inode_args_process(argc
, argv
, &inode
, 0)) {
877 if (debugfs_read_inode_full(inode
, inode_buf
, argv
[0],
878 EXT2_INODE_SIZE(current_fs
->super
))) {
883 dump_inode(inode
, inode_buf
);
888 void do_dump_extents(int argc
, char **argv
)
890 struct ext2_inode inode
;
898 while ((c
= getopt(argc
, argv
, "nl")) != EOF
) {
901 flags
|= DUMP_NODE_EXTENTS
;
904 flags
|= DUMP_LEAF_EXTENTS
;
909 if (argc
!= optind
+ 1) {
910 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
915 flags
= DUMP_NODE_EXTENTS
| DUMP_LEAF_EXTENTS
;
916 flags
|= DUMP_EXTENT_TABLE
;
918 if (check_fs_open(argv
[0]))
921 ino
= string_to_inode(argv
[optind
]);
925 if (debugfs_read_inode(ino
, &inode
, argv
[0]))
928 if ((inode
.i_flags
& EXT4_EXTENTS_FL
) == 0) {
929 fprintf(stderr
, "%s: does not uses extent block maps\n",
934 logical_width
= int_log10((EXT2_I_SIZE(&inode
)+current_fs
->blocksize
-1)/
935 current_fs
->blocksize
) + 1;
936 if (logical_width
< 5)
938 physical_width
= int_log10(ext2fs_blocks_count(current_fs
->super
)) + 1;
939 if (physical_width
< 5)
943 dump_extents(out
, "", ino
, flags
, logical_width
, physical_width
);
948 static int print_blocks_proc(ext2_filsys fs
EXT2FS_ATTR((unused
)),
950 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
951 blk64_t ref_block
EXT2FS_ATTR((unused
)),
952 int ref_offset
EXT2FS_ATTR((unused
)),
953 void *private EXT2FS_ATTR((unused
)))
955 printf("%llu ", *blocknr
);
959 void do_blocks(int argc
, char *argv
[])
963 if (check_fs_open(argv
[0]))
966 if (common_inode_args_process(argc
, argv
, &inode
, 0)) {
970 ext2fs_block_iterate3(current_fs
, inode
, BLOCK_FLAG_READ_ONLY
, NULL
,
971 print_blocks_proc
, NULL
);
976 void do_chroot(int argc
, char *argv
[])
981 if (common_inode_args_process(argc
, argv
, &inode
, 0))
984 retval
= ext2fs_check_directory(current_fs
, inode
);
986 com_err(argv
[1], retval
, 0);
993 void do_clri(int argc
, char *argv
[])
996 struct ext2_inode inode_buf
;
998 if (common_inode_args_process(argc
, argv
, &inode
, CHECK_FS_RW
))
1001 if (debugfs_read_inode(inode
, &inode_buf
, argv
[0]))
1003 memset(&inode_buf
, 0, sizeof(inode_buf
));
1004 if (debugfs_write_inode(inode
, &inode_buf
, argv
[0]))
1008 void do_freei(int argc
, char *argv
[])
1010 unsigned int len
= 1;
1014 if (common_args_process(argc
, argv
, 2, 3, argv
[0], "<file> [num]",
1015 CHECK_FS_RW
| CHECK_FS_BITMAPS
))
1017 if (check_fs_read_write(argv
[0]))
1020 inode
= string_to_inode(argv
[1]);
1025 len
= parse_ulong(argv
[2], argv
[0], "length", &err
);
1031 !ext2fs_test_inode_bitmap2(current_fs
->inode_map
,inode
))
1032 com_err(argv
[0], 0, "Warning: inode already clear");
1034 ext2fs_unmark_inode_bitmap2(current_fs
->inode_map
, inode
++);
1035 ext2fs_mark_ib_dirty(current_fs
);
1038 void do_seti(int argc
, char *argv
[])
1040 unsigned int len
= 1;
1044 if (common_args_process(argc
, argv
, 2, 3, argv
[0], "<file> [num]",
1045 CHECK_FS_RW
| CHECK_FS_BITMAPS
))
1047 if (check_fs_read_write(argv
[0]))
1050 inode
= string_to_inode(argv
[1]);
1055 len
= parse_ulong(argv
[2], argv
[0], "length", &err
);
1061 ext2fs_test_inode_bitmap2(current_fs
->inode_map
,inode
))
1062 com_err(argv
[0], 0, "Warning: inode already set");
1064 ext2fs_mark_inode_bitmap2(current_fs
->inode_map
, inode
++);
1065 ext2fs_mark_ib_dirty(current_fs
);
1067 #endif /* READ_ONLY */
1069 void do_testi(int argc
, char *argv
[])
1073 if (common_inode_args_process(argc
, argv
, &inode
, CHECK_FS_BITMAPS
))
1076 if (ext2fs_test_inode_bitmap2(current_fs
->inode_map
,inode
))
1077 printf("Inode %u is marked in use\n", inode
);
1079 printf("Inode %u is not in use\n", inode
);
1083 void do_freeb(int argc
, char *argv
[])
1088 if (common_block_args_process(argc
, argv
, &block
, &count
))
1090 if (check_fs_read_write(argv
[0]))
1092 while (count
-- > 0) {
1093 if (!ext2fs_test_block_bitmap2(current_fs
->block_map
,block
))
1094 com_err(argv
[0], 0, "Warning: block %llu already clear",
1096 ext2fs_unmark_block_bitmap2(current_fs
->block_map
,block
);
1099 ext2fs_mark_bb_dirty(current_fs
);
1102 void do_setb(int argc
, char *argv
[])
1107 if (common_block_args_process(argc
, argv
, &block
, &count
))
1109 if (check_fs_read_write(argv
[0]))
1111 while (count
-- > 0) {
1112 if (ext2fs_test_block_bitmap2(current_fs
->block_map
,block
))
1113 com_err(argv
[0], 0, "Warning: block %llu already set",
1115 ext2fs_mark_block_bitmap2(current_fs
->block_map
,block
);
1118 ext2fs_mark_bb_dirty(current_fs
);
1120 #endif /* READ_ONLY */
1122 void do_testb(int argc
, char *argv
[])
1127 if (common_block_args_process(argc
, argv
, &block
, &count
))
1129 while (count
-- > 0) {
1130 if (ext2fs_test_block_bitmap2(current_fs
->block_map
,block
))
1131 printf("Block %llu marked in use\n", block
);
1133 printf("Block %llu not in use\n", block
);
1139 static void modify_u8(char *com
, const char *prompt
,
1140 const char *format
, __u8
*val
)
1146 sprintf(buf
, format
, *val
);
1147 printf("%30s [%s] ", prompt
, buf
);
1148 if (!fgets(buf
, sizeof(buf
), stdin
))
1150 if (buf
[strlen (buf
) - 1] == '\n')
1151 buf
[strlen (buf
) - 1] = '\0';
1154 v
= strtoul(buf
, &tmp
, 0);
1156 com_err(com
, 0, "Bad value - %s", buf
);
1161 static void modify_u16(char *com
, const char *prompt
,
1162 const char *format
, __u16
*val
)
1168 sprintf(buf
, format
, *val
);
1169 printf("%30s [%s] ", prompt
, buf
);
1170 if (!fgets(buf
, sizeof(buf
), stdin
))
1172 if (buf
[strlen (buf
) - 1] == '\n')
1173 buf
[strlen (buf
) - 1] = '\0';
1176 v
= strtoul(buf
, &tmp
, 0);
1178 com_err(com
, 0, "Bad value - %s", buf
);
1183 static void modify_u32(char *com
, const char *prompt
,
1184 const char *format
, __u32
*val
)
1190 sprintf(buf
, format
, *val
);
1191 printf("%30s [%s] ", prompt
, buf
);
1192 if (!fgets(buf
, sizeof(buf
), stdin
))
1194 if (buf
[strlen (buf
) - 1] == '\n')
1195 buf
[strlen (buf
) - 1] = '\0';
1198 v
= strtoul(buf
, &tmp
, 0);
1200 com_err(com
, 0, "Bad value - %s", buf
);
1206 void do_modify_inode(int argc
, char *argv
[])
1208 struct ext2_inode inode
;
1209 ext2_ino_t inode_num
;
1211 unsigned char *frag
, *fsize
;
1214 const char *hex_format
= "0x%x";
1215 const char *octal_format
= "0%o";
1216 const char *decimal_format
= "%d";
1217 const char *unsignedlong_format
= "%lu";
1219 if (common_inode_args_process(argc
, argv
, &inode_num
, CHECK_FS_RW
))
1222 os
= current_fs
->super
->s_creator_os
;
1224 if (debugfs_read_inode(inode_num
, &inode
, argv
[1]))
1227 modify_u16(argv
[0], "Mode", octal_format
, &inode
.i_mode
);
1228 modify_u16(argv
[0], "User ID", decimal_format
, &inode
.i_uid
);
1229 modify_u16(argv
[0], "Group ID", decimal_format
, &inode
.i_gid
);
1230 modify_u32(argv
[0], "Size", unsignedlong_format
, &inode
.i_size
);
1231 modify_u32(argv
[0], "Creation time", decimal_format
, &inode
.i_ctime
);
1232 modify_u32(argv
[0], "Modification time", decimal_format
, &inode
.i_mtime
);
1233 modify_u32(argv
[0], "Access time", decimal_format
, &inode
.i_atime
);
1234 modify_u32(argv
[0], "Deletion time", decimal_format
, &inode
.i_dtime
);
1235 modify_u16(argv
[0], "Link count", decimal_format
, &inode
.i_links_count
);
1236 if (os
== EXT2_OS_LINUX
)
1237 modify_u16(argv
[0], "Block count high", unsignedlong_format
,
1238 &inode
.osd2
.linux2
.l_i_blocks_hi
);
1239 modify_u32(argv
[0], "Block count", unsignedlong_format
, &inode
.i_blocks
);
1240 modify_u32(argv
[0], "File flags", hex_format
, &inode
.i_flags
);
1241 modify_u32(argv
[0], "Generation", hex_format
, &inode
.i_generation
);
1243 modify_u32(argv
[0], "Reserved1", decimal_format
, &inode
.i_reserved1
);
1245 modify_u32(argv
[0], "File acl", decimal_format
, &inode
.i_file_acl
);
1246 if (LINUX_S_ISDIR(inode
.i_mode
))
1247 modify_u32(argv
[0], "Directory acl", decimal_format
, &inode
.i_dir_acl
);
1249 modify_u32(argv
[0], "High 32bits of size", decimal_format
, &inode
.i_size_high
);
1251 if (os
== EXT2_OS_HURD
)
1252 modify_u32(argv
[0], "Translator Block",
1253 decimal_format
, &inode
.osd1
.hurd1
.h_i_translator
);
1255 modify_u32(argv
[0], "Fragment address", decimal_format
, &inode
.i_faddr
);
1258 frag
= &inode
.osd2
.hurd2
.h_i_frag
;
1259 fsize
= &inode
.osd2
.hurd2
.h_i_fsize
;
1265 modify_u8(argv
[0], "Fragment number", decimal_format
, frag
);
1267 modify_u8(argv
[0], "Fragment size", decimal_format
, fsize
);
1269 for (i
=0; i
< EXT2_NDIR_BLOCKS
; i
++) {
1270 sprintf(buf
, "Direct Block #%d", i
);
1271 modify_u32(argv
[0], buf
, decimal_format
, &inode
.i_block
[i
]);
1273 modify_u32(argv
[0], "Indirect Block", decimal_format
,
1274 &inode
.i_block
[EXT2_IND_BLOCK
]);
1275 modify_u32(argv
[0], "Double Indirect Block", decimal_format
,
1276 &inode
.i_block
[EXT2_DIND_BLOCK
]);
1277 modify_u32(argv
[0], "Triple Indirect Block", decimal_format
,
1278 &inode
.i_block
[EXT2_TIND_BLOCK
]);
1279 if (debugfs_write_inode(inode_num
, &inode
, argv
[1]))
1282 #endif /* READ_ONLY */
1284 void do_change_working_dir(int argc
, char *argv
[])
1289 if (common_inode_args_process(argc
, argv
, &inode
, 0))
1292 retval
= ext2fs_check_directory(current_fs
, inode
);
1294 com_err(argv
[1], retval
, 0);
1301 void do_print_working_directory(int argc
, char *argv
[])
1304 char *pathname
= NULL
;
1306 if (common_args_process(argc
, argv
, 1, 1,
1307 "print_working_directory", "", 0))
1310 retval
= ext2fs_get_pathname(current_fs
, cwd
, 0, &pathname
);
1312 com_err(argv
[0], retval
,
1313 "while trying to get pathname of cwd");
1315 printf("[pwd] INODE: %6u PATH: %s\n",
1316 cwd
, pathname
? pathname
: "NULL");
1321 retval
= ext2fs_get_pathname(current_fs
, root
, 0, &pathname
);
1323 com_err(argv
[0], retval
,
1324 "while trying to get pathname of root");
1326 printf("[root] INODE: %6u PATH: %s\n",
1327 root
, pathname
? pathname
: "NULL");
1336 static void make_link(char *sourcename
, char *destname
)
1339 struct ext2_inode inode
;
1342 char *dest
, *cp
, *base_name
;
1345 * Get the source inode
1347 ino
= string_to_inode(sourcename
);
1350 base_name
= strrchr(sourcename
, '/');
1354 base_name
= sourcename
;
1356 * Figure out the destination. First see if it exists and is
1359 if (! (retval
=ext2fs_namei(current_fs
, root
, cwd
, destname
, &dir
)))
1363 * OK, it doesn't exist. See if it is
1364 * '<dir>/basename' or 'basename'
1366 cp
= strrchr(destname
, '/');
1369 dir
= string_to_inode(destname
);
1379 if (debugfs_read_inode(ino
, &inode
, sourcename
))
1382 retval
= ext2fs_link(current_fs
, dir
, dest
, ino
,
1383 ext2_file_type(inode
.i_mode
));
1385 com_err("make_link", retval
, 0);
1390 void do_link(int argc
, char *argv
[])
1392 if (common_args_process(argc
, argv
, 3, 3, "link",
1393 "<source file> <dest_name>", CHECK_FS_RW
))
1396 make_link(argv
[1], argv
[2]);
1399 static int mark_blocks_proc(ext2_filsys fs
, blk64_t
*blocknr
,
1400 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
1401 blk64_t ref_block
EXT2FS_ATTR((unused
)),
1402 int ref_offset
EXT2FS_ATTR((unused
)),
1403 void *private EXT2FS_ATTR((unused
)))
1408 ext2fs_block_alloc_stats2(fs
, block
, +1);
1412 void do_undel(int argc
, char *argv
[])
1415 struct ext2_inode inode
;
1417 if (common_args_process(argc
, argv
, 2, 3, "undelete",
1418 "<inode_num> [dest_name]",
1419 CHECK_FS_RW
| CHECK_FS_BITMAPS
))
1422 ino
= string_to_inode(argv
[1]);
1426 if (debugfs_read_inode(ino
, &inode
, argv
[1]))
1429 if (ext2fs_test_inode_bitmap2(current_fs
->inode_map
, ino
)) {
1430 com_err(argv
[1], 0, "Inode is not marked as deleted");
1435 * XXX this function doesn't handle changing the links count on the
1436 * parent directory when undeleting a directory.
1438 inode
.i_links_count
= LINUX_S_ISDIR(inode
.i_mode
) ? 2 : 1;
1441 if (debugfs_write_inode(ino
, &inode
, argv
[0]))
1444 ext2fs_block_iterate3(current_fs
, ino
, BLOCK_FLAG_READ_ONLY
, NULL
,
1445 mark_blocks_proc
, NULL
);
1447 ext2fs_inode_alloc_stats2(current_fs
, ino
, +1, 0);
1450 make_link(argv
[1], argv
[2]);
1453 static void unlink_file_by_name(char *filename
)
1459 base_name
= strrchr(filename
, '/');
1461 *base_name
++ = '\0';
1462 dir
= string_to_inode(filename
);
1467 base_name
= filename
;
1469 retval
= ext2fs_unlink(current_fs
, dir
, base_name
, 0, 0);
1471 com_err("unlink_file_by_name", retval
, 0);
1475 void do_unlink(int argc
, char *argv
[])
1477 if (common_args_process(argc
, argv
, 2, 2, "link",
1478 "<pathname>", CHECK_FS_RW
))
1481 unlink_file_by_name(argv
[1]);
1483 #endif /* READ_ONLY */
1485 void do_find_free_block(int argc
, char *argv
[])
1487 blk64_t free_blk
, goal
, first_free
= 0;
1492 if ((argc
> 3) || (argc
==2 && *argv
[1] == '?')) {
1493 com_err(argv
[0], 0, "Usage: find_free_block [count [goal]]");
1496 if (check_fs_open(argv
[0]))
1500 count
= strtol(argv
[1],&tmp
,0);
1502 com_err(argv
[0], 0, "Bad count - %s", argv
[1]);
1509 goal
= strtol(argv
[2], &tmp
, 0);
1511 com_err(argv
[0], 0, "Bad goal - %s", argv
[1]);
1516 goal
= current_fs
->super
->s_first_data_block
;
1518 printf("Free blocks found: ");
1519 free_blk
= goal
- 1;
1520 while (count
-- > 0) {
1521 retval
= ext2fs_new_block2(current_fs
, free_blk
+ 1, 0,
1524 if (first_free
== free_blk
)
1527 first_free
= free_blk
;
1529 com_err("ext2fs_new_block", retval
, 0);
1532 printf("%llu ", free_blk
);
1537 void do_find_free_inode(int argc
, char *argv
[])
1539 ext2_ino_t free_inode
, dir
;
1544 if (argc
> 3 || (argc
>1 && *argv
[1] == '?')) {
1545 com_err(argv
[0], 0, "Usage: find_free_inode [dir] [mode]");
1548 if (check_fs_open(argv
[0]))
1552 dir
= strtol(argv
[1], &tmp
, 0);
1554 com_err(argv
[0], 0, "Bad dir - %s", argv
[1]);
1561 mode
= strtol(argv
[2], &tmp
, 0);
1563 com_err(argv
[0], 0, "Bad mode - %s", argv
[2]);
1569 retval
= ext2fs_new_inode(current_fs
, dir
, mode
, 0, &free_inode
);
1571 com_err("ext2fs_new_inode", retval
, 0);
1573 printf("Free inode found: %u\n", free_inode
);
1577 static errcode_t
copy_file(int fd
, ext2_ino_t newfile
, int bufsize
, int make_holes
)
1579 ext2_file_t e2_file
;
1582 unsigned int written
;
1588 retval
= ext2fs_file_open(current_fs
, newfile
,
1589 EXT2_FILE_WRITE
, &e2_file
);
1593 if (!(buf
= (char *) malloc(bufsize
))){
1594 com_err("copy_file", errno
, "can't allocate buffer\n");
1598 /* This is used for checking whether the whole block is zero */
1599 retval
= ext2fs_get_memzero(bufsize
, &zero_buf
);
1601 com_err("copy_file", retval
, "can't allocate buffer\n");
1607 got
= read(fd
, buf
, bufsize
);
1618 /* Check whether all is zero */
1619 cmp
= memcmp(ptr
, zero_buf
, got
);
1621 /* The whole block is zero, make a hole */
1622 retval
= ext2fs_file_lseek(e2_file
, got
, EXT2_SEEK_CUR
, NULL
);
1631 retval
= ext2fs_file_write(e2_file
, ptr
,
1641 ext2fs_free_mem(&zero_buf
);
1642 retval
= ext2fs_file_close(e2_file
);
1647 ext2fs_free_mem(&zero_buf
);
1648 (void) ext2fs_file_close(e2_file
);
1653 void do_write(int argc
, char *argv
[])
1656 struct stat statbuf
;
1659 struct ext2_inode inode
;
1660 int bufsize
= IO_BUFSIZE
;
1663 if (common_args_process(argc
, argv
, 3, 3, "write",
1664 "<native file> <new file>", CHECK_FS_RW
))
1667 fd
= open(argv
[1], O_RDONLY
);
1669 com_err(argv
[1], errno
, 0);
1672 if (fstat(fd
, &statbuf
) < 0) {
1673 com_err(argv
[1], errno
, 0);
1678 retval
= ext2fs_namei(current_fs
, root
, cwd
, argv
[2], &newfile
);
1680 com_err(argv
[0], 0, "The file '%s' already exists\n", argv
[2]);
1685 retval
= ext2fs_new_inode(current_fs
, cwd
, 010755, 0, &newfile
);
1687 com_err(argv
[0], retval
, 0);
1691 printf("Allocated inode: %u\n", newfile
);
1692 retval
= ext2fs_link(current_fs
, cwd
, argv
[2], newfile
,
1694 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
1695 retval
= ext2fs_expand_dir(current_fs
, cwd
);
1697 com_err(argv
[0], retval
, "while expanding directory");
1701 retval
= ext2fs_link(current_fs
, cwd
, argv
[2], newfile
,
1705 com_err(argv
[2], retval
, 0);
1709 if (ext2fs_test_inode_bitmap2(current_fs
->inode_map
,newfile
))
1710 com_err(argv
[0], 0, "Warning: inode already set");
1711 ext2fs_inode_alloc_stats2(current_fs
, newfile
, +1, 0);
1712 memset(&inode
, 0, sizeof(inode
));
1713 inode
.i_mode
= (statbuf
.st_mode
& ~LINUX_S_IFMT
) | LINUX_S_IFREG
;
1714 inode
.i_atime
= inode
.i_ctime
= inode
.i_mtime
=
1715 current_fs
->now
? current_fs
->now
: time(0);
1716 inode
.i_links_count
= 1;
1717 inode
.i_size
= statbuf
.st_size
;
1718 if (current_fs
->super
->s_feature_incompat
&
1719 EXT3_FEATURE_INCOMPAT_EXTENTS
) {
1721 struct ext3_extent_header
*eh
;
1723 eh
= (struct ext3_extent_header
*) &inode
.i_block
[0];
1726 eh
->eh_magic
= EXT3_EXT_MAGIC
;
1727 i
= (sizeof(inode
.i_block
) - sizeof(*eh
)) /
1728 sizeof(struct ext3_extent
);
1729 eh
->eh_max
= ext2fs_cpu_to_le16(i
);
1730 inode
.i_flags
|= EXT4_EXTENTS_FL
;
1732 if (debugfs_write_new_inode(newfile
, &inode
, argv
[0])) {
1736 if (LINUX_S_ISREG(inode
.i_mode
)) {
1737 if (statbuf
.st_blocks
< statbuf
.st_size
/ S_BLKSIZE
) {
1740 * Use I/O blocksize as buffer size when
1741 * copying sparse files.
1743 bufsize
= statbuf
.st_blksize
;
1745 retval
= copy_file(fd
, newfile
, bufsize
, make_holes
);
1747 com_err("copy_file", retval
, 0);
1752 void do_mknod(int argc
, char *argv
[])
1754 unsigned long mode
, major
, minor
;
1757 struct ext2_inode inode
;
1760 if (check_fs_open(argv
[0]))
1762 if (argc
< 3 || argv
[2][1]) {
1764 com_err(argv
[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1767 mode
= minor
= major
= 0;
1768 switch (argv
[2][0]) {
1770 mode
= LINUX_S_IFIFO
;
1771 filetype
= EXT2_FT_FIFO
;
1775 mode
= LINUX_S_IFCHR
;
1776 filetype
= EXT2_FT_CHRDEV
;
1780 mode
= LINUX_S_IFBLK
;
1781 filetype
= EXT2_FT_BLKDEV
;
1789 major
= strtoul(argv
[3], argv
+3, 0);
1790 minor
= strtoul(argv
[4], argv
+4, 0);
1791 if (major
> 65535 || minor
> 65535 || argv
[3][0] || argv
[4][0])
1796 if (check_fs_read_write(argv
[0]))
1798 retval
= ext2fs_new_inode(current_fs
, cwd
, 010755, 0, &newfile
);
1800 com_err(argv
[0], retval
, 0);
1803 printf("Allocated inode: %u\n", newfile
);
1804 retval
= ext2fs_link(current_fs
, cwd
, argv
[1], newfile
, filetype
);
1805 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
1806 retval
= ext2fs_expand_dir(current_fs
, cwd
);
1808 com_err(argv
[0], retval
, "while expanding directory");
1811 retval
= ext2fs_link(current_fs
, cwd
, argv
[1], newfile
,
1815 com_err(argv
[1], retval
, 0);
1818 if (ext2fs_test_inode_bitmap2(current_fs
->inode_map
,newfile
))
1819 com_err(argv
[0], 0, "Warning: inode already set");
1820 ext2fs_inode_alloc_stats2(current_fs
, newfile
, +1, 0);
1821 memset(&inode
, 0, sizeof(inode
));
1822 inode
.i_mode
= mode
;
1823 inode
.i_atime
= inode
.i_ctime
= inode
.i_mtime
=
1824 current_fs
->now
? current_fs
->now
: time(0);
1825 if ((major
< 256) && (minor
< 256)) {
1826 inode
.i_block
[0] = major
*256+minor
;
1827 inode
.i_block
[1] = 0;
1829 inode
.i_block
[0] = 0;
1830 inode
.i_block
[1] = (minor
& 0xff) | (major
<< 8) | ((minor
& ~0xff) << 12);
1832 inode
.i_links_count
= 1;
1833 if (debugfs_write_new_inode(newfile
, &inode
, argv
[0]))
1837 void do_mkdir(int argc
, char *argv
[])
1844 if (common_args_process(argc
, argv
, 2, 2, "mkdir",
1845 "<filename>", CHECK_FS_RW
))
1848 cp
= strrchr(argv
[1], '/');
1851 parent
= string_to_inode(argv
[1]);
1853 com_err(argv
[1], ENOENT
, 0);
1863 retval
= ext2fs_mkdir(current_fs
, parent
, 0, name
);
1864 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
1865 retval
= ext2fs_expand_dir(current_fs
, parent
);
1867 com_err(argv
[0], retval
, "while expanding directory");
1873 com_err("ext2fs_mkdir", retval
, 0);
1879 static int release_blocks_proc(ext2_filsys fs
, blk64_t
*blocknr
,
1880 e2_blkcnt_t blockcnt
EXT2FS_ATTR((unused
)),
1881 blk64_t ref_block
EXT2FS_ATTR((unused
)),
1882 int ref_offset
EXT2FS_ATTR((unused
)),
1883 void *private EXT2FS_ATTR((unused
)))
1888 ext2fs_block_alloc_stats2(fs
, block
, -1);
1892 static void kill_file_by_inode(ext2_ino_t inode
)
1894 struct ext2_inode inode_buf
;
1896 if (debugfs_read_inode(inode
, &inode_buf
, 0))
1898 inode_buf
.i_dtime
= current_fs
->now
? current_fs
->now
: time(0);
1899 if (debugfs_write_inode(inode
, &inode_buf
, 0))
1901 if (!ext2fs_inode_has_valid_blocks2(current_fs
, &inode_buf
))
1904 ext2fs_block_iterate3(current_fs
, inode
, BLOCK_FLAG_READ_ONLY
, NULL
,
1905 release_blocks_proc
, NULL
);
1907 ext2fs_inode_alloc_stats2(current_fs
, inode
, -1,
1908 LINUX_S_ISDIR(inode_buf
.i_mode
));
1912 void do_kill_file(int argc
, char *argv
[])
1914 ext2_ino_t inode_num
;
1916 if (common_inode_args_process(argc
, argv
, &inode_num
, CHECK_FS_RW
))
1919 kill_file_by_inode(inode_num
);
1922 void do_rm(int argc
, char *argv
[])
1925 ext2_ino_t inode_num
;
1926 struct ext2_inode inode
;
1928 if (common_args_process(argc
, argv
, 2, 2, "rm",
1929 "<filename>", CHECK_FS_RW
))
1932 retval
= ext2fs_namei(current_fs
, root
, cwd
, argv
[1], &inode_num
);
1934 com_err(argv
[0], retval
, "while trying to resolve filename");
1938 if (debugfs_read_inode(inode_num
, &inode
, argv
[0]))
1941 if (LINUX_S_ISDIR(inode
.i_mode
)) {
1942 com_err(argv
[0], 0, "file is a directory");
1946 --inode
.i_links_count
;
1947 if (debugfs_write_inode(inode_num
, &inode
, argv
[0]))
1950 unlink_file_by_name(argv
[1]);
1951 if (inode
.i_links_count
== 0)
1952 kill_file_by_inode(inode_num
);
1960 static int rmdir_proc(ext2_ino_t dir
EXT2FS_ATTR((unused
)),
1961 int entry
EXT2FS_ATTR((unused
)),
1962 struct ext2_dir_entry
*dirent
,
1963 int offset
EXT2FS_ATTR((unused
)),
1964 int blocksize
EXT2FS_ATTR((unused
)),
1965 char *buf
EXT2FS_ATTR((unused
)),
1968 struct rd_struct
*rds
= (struct rd_struct
*) private;
1970 if (dirent
->inode
== 0)
1972 if (((dirent
->name_len
&0xFF) == 1) && (dirent
->name
[0] == '.'))
1974 if (((dirent
->name_len
&0xFF) == 2) && (dirent
->name
[0] == '.') &&
1975 (dirent
->name
[1] == '.')) {
1976 rds
->parent
= dirent
->inode
;
1983 void do_rmdir(int argc
, char *argv
[])
1986 ext2_ino_t inode_num
;
1987 struct ext2_inode inode
;
1988 struct rd_struct rds
;
1990 if (common_args_process(argc
, argv
, 2, 2, "rmdir",
1991 "<filename>", CHECK_FS_RW
))
1994 retval
= ext2fs_namei(current_fs
, root
, cwd
, argv
[1], &inode_num
);
1996 com_err(argv
[0], retval
, "while trying to resolve filename");
2000 if (debugfs_read_inode(inode_num
, &inode
, argv
[0]))
2003 if (!LINUX_S_ISDIR(inode
.i_mode
)) {
2004 com_err(argv
[0], 0, "file is not a directory");
2011 retval
= ext2fs_dir_iterate2(current_fs
, inode_num
, 0,
2012 0, rmdir_proc
, &rds
);
2014 com_err(argv
[0], retval
, "while iterating over directory");
2017 if (rds
.empty
== 0) {
2018 com_err(argv
[0], 0, "directory not empty");
2022 inode
.i_links_count
= 0;
2023 if (debugfs_write_inode(inode_num
, &inode
, argv
[0]))
2026 unlink_file_by_name(argv
[1]);
2027 kill_file_by_inode(inode_num
);
2030 if (debugfs_read_inode(rds
.parent
, &inode
, argv
[0]))
2032 if (inode
.i_links_count
> 1)
2033 inode
.i_links_count
--;
2034 if (debugfs_write_inode(rds
.parent
, &inode
, argv
[0]))
2038 #endif /* READ_ONLY */
2040 void do_show_debugfs_params(int argc
EXT2FS_ATTR((unused
)),
2041 char *argv
[] EXT2FS_ATTR((unused
)))
2044 printf("Open mode: read-%s\n",
2045 current_fs
->flags
& EXT2_FLAG_RW
? "write" : "only");
2046 printf("Filesystem in use: %s\n",
2047 current_fs
? current_fs
->device_name
: "--none--");
2051 void do_expand_dir(int argc
, char *argv
[])
2056 if (common_inode_args_process(argc
, argv
, &inode
, CHECK_FS_RW
))
2059 retval
= ext2fs_expand_dir(current_fs
, inode
);
2061 com_err("ext2fs_expand_dir", retval
, 0);
2065 void do_features(int argc
, char *argv
[])
2069 if (check_fs_open(argv
[0]))
2072 if ((argc
!= 1) && check_fs_read_write(argv
[0]))
2074 for (i
=1; i
< argc
; i
++) {
2075 if (e2p_edit_feature(argv
[i
],
2076 ¤t_fs
->super
->s_feature_compat
, 0))
2077 com_err(argv
[0], 0, "Unknown feature: %s\n",
2080 ext2fs_mark_super_dirty(current_fs
);
2082 print_features(current_fs
->super
, stdout
);
2084 #endif /* READ_ONLY */
2086 void do_bmap(int argc
, char *argv
[])
2093 if (common_args_process(argc
, argv
, 3, 3, argv
[0],
2094 "<file> logical_blk", 0))
2097 ino
= string_to_inode(argv
[1]);
2100 blk
= parse_ulong(argv
[2], argv
[0], "logical_block", &err
);
2102 errcode
= ext2fs_bmap2(current_fs
, ino
, 0, 0, 0, blk
, 0, &pblk
);
2104 com_err("argv[0]", errcode
,
2105 "while mapping logical block %llu\n", blk
);
2108 printf("%llu\n", pblk
);
2111 void do_imap(int argc
, char *argv
[])
2114 unsigned long group
, block
, block_nr
, offset
;
2116 if (common_args_process(argc
, argv
, 2, 2, argv
[0],
2119 ino
= string_to_inode(argv
[1]);
2123 group
= (ino
- 1) / EXT2_INODES_PER_GROUP(current_fs
->super
);
2124 offset
= ((ino
- 1) % EXT2_INODES_PER_GROUP(current_fs
->super
)) *
2125 EXT2_INODE_SIZE(current_fs
->super
);
2126 block
= offset
>> EXT2_BLOCK_SIZE_BITS(current_fs
->super
);
2127 if (!ext2fs_inode_table_loc(current_fs
, (unsigned)group
)) {
2128 com_err(argv
[0], 0, "Inode table for group %lu is missing\n",
2132 block_nr
= ext2fs_inode_table_loc(current_fs
, (unsigned)group
) +
2134 offset
&= (EXT2_BLOCK_SIZE(current_fs
->super
) - 1);
2136 printf("Inode %d is part of block group %lu\n"
2137 "\tlocated at block %lu, offset 0x%04lx\n", ino
, group
,
2143 void do_set_current_time(int argc
, char *argv
[])
2147 if (common_args_process(argc
, argv
, 2, 2, argv
[0],
2151 now
= string_to_time(argv
[1]);
2152 if (now
== ((time_t) -1)) {
2153 com_err(argv
[0], 0, "Couldn't parse argument as a time: %s\n",
2158 printf("Setting current time to %s\n", time_to_string(now
));
2159 current_fs
->now
= now
;
2162 #endif /* READ_ONLY */
2164 static int find_supp_feature(__u32
*supp
, int feature_type
, char *name
)
2166 int compat
, bit
, ret
;
2167 unsigned int feature_mask
;
2170 if (feature_type
== E2P_FS_FEATURE
)
2171 ret
= e2p_string2feature(name
, &compat
, &feature_mask
);
2173 ret
= e2p_jrnl_string2feature(name
, &compat
,
2178 if (!(supp
[compat
] & feature_mask
))
2181 for (compat
= 0; compat
< 3; compat
++) {
2182 for (bit
= 0, feature_mask
= 1; bit
< 32;
2183 bit
++, feature_mask
<<= 1) {
2184 if (supp
[compat
] & feature_mask
) {
2185 if (feature_type
== E2P_FS_FEATURE
)
2186 fprintf(stdout
, " %s",
2187 e2p_feature2string(compat
,
2190 fprintf(stdout
, " %s",
2191 e2p_jrnl_feature2string(compat
,
2196 fprintf(stdout
, "\n");
2202 void do_supported_features(int argc
, char *argv
[])
2205 __u32 supp
[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP
,
2206 EXT2_LIB_FEATURE_INCOMPAT_SUPP
,
2207 EXT2_LIB_FEATURE_RO_COMPAT_SUPP
};
2208 __u32 jrnl_supp
[3] = { JFS_KNOWN_COMPAT_FEATURES
,
2209 JFS_KNOWN_INCOMPAT_FEATURES
,
2210 JFS_KNOWN_ROCOMPAT_FEATURES
};
2213 ret
= find_supp_feature(supp
, E2P_FS_FEATURE
, argv
[1]);
2215 ret
= find_supp_feature(jrnl_supp
, E2P_JOURNAL_FEATURE
,
2219 com_err(argv
[0], 0, "Unknown feature: %s\n", argv
[1]);
2221 fprintf(stdout
, "Supported feature: %s\n", argv
[1]);
2223 fprintf(stdout
, "Supported features:");
2224 ret
= find_supp_feature(supp
, E2P_FS_FEATURE
, NULL
);
2225 ret
= find_supp_feature(jrnl_supp
, E2P_JOURNAL_FEATURE
, NULL
);
2230 void do_punch(int argc
, char *argv
[])
2237 if (common_args_process(argc
, argv
, 3, 4, argv
[0],
2238 "<file> start_blk [end_blk]",
2239 CHECK_FS_RW
| CHECK_FS_BITMAPS
))
2242 ino
= string_to_inode(argv
[1]);
2245 start
= parse_ulong(argv
[2], argv
[0], "logical_block", &err
);
2247 end
= parse_ulong(argv
[3], argv
[0], "logical_block", &err
);
2251 errcode
= ext2fs_punch(current_fs
, ino
, 0, 0, start
, end
);
2254 com_err(argv
[0], errcode
,
2255 "while truncating inode %u from %llu to %llu\n", ino
,
2256 (unsigned long long) start
, (unsigned long long) end
);
2260 #endif /* READ_ONLY */
2262 void do_symlink(int argc
, char *argv
[])
2266 char *name
, *target
;
2269 if (common_args_process(argc
, argv
, 3, 3, "symlink",
2270 "<filename> <target>", CHECK_FS_RW
))
2273 cp
= strrchr(argv
[1], '/');
2276 parent
= string_to_inode(argv
[1]);
2278 com_err(argv
[1], ENOENT
, 0);
2289 retval
= ext2fs_symlink(current_fs
, parent
, 0, name
, target
);
2290 if (retval
== EXT2_ET_DIR_NO_SPACE
) {
2291 retval
= ext2fs_expand_dir(current_fs
, parent
);
2293 com_err(argv
[0], retval
, "while expanding directory");
2299 com_err("ext2fs_symlink", retval
, 0);
2305 void do_dump_mmp(int argc
EXT2FS_ATTR((unused
)), char *argv
[])
2307 struct ext2_super_block
*sb
;
2308 struct mmp_struct
*mmp_s
;
2310 errcode_t retval
= 0;
2312 if (check_fs_open(argv
[0]))
2315 sb
= current_fs
->super
;
2317 if (current_fs
->mmp_buf
== NULL
) {
2318 retval
= ext2fs_get_mem(current_fs
->blocksize
,
2319 ¤t_fs
->mmp_buf
);
2321 com_err(argv
[0], retval
, "allocating MMP buffer.\n");
2326 mmp_s
= current_fs
->mmp_buf
;
2328 retval
= ext2fs_mmp_read(current_fs
, current_fs
->super
->s_mmp_block
,
2329 current_fs
->mmp_buf
);
2331 com_err(argv
[0], retval
, "reading MMP block.\n");
2335 t
= mmp_s
->mmp_time
;
2336 fprintf(stdout
, "block_number: %llu\n", current_fs
->super
->s_mmp_block
);
2337 fprintf(stdout
, "update_interval: %d\n",
2338 current_fs
->super
->s_mmp_update_interval
);
2339 fprintf(stdout
, "check_interval: %d\n", mmp_s
->mmp_check_interval
);
2340 fprintf(stdout
, "sequence: %08x\n", mmp_s
->mmp_seq
);
2341 fprintf(stdout
, "time: %lld -- %s", mmp_s
->mmp_time
, ctime(&t
));
2342 fprintf(stdout
, "node_name: %s\n", mmp_s
->mmp_nodename
);
2343 fprintf(stdout
, "device_name: %s\n", mmp_s
->mmp_bdevname
);
2344 fprintf(stdout
, "magic: 0x%x\n", mmp_s
->mmp_magic
);
2347 static int source_file(const char *cmd_file
, int ss_idx
)
2352 int exit_status
= 0;
2355 if (strcmp(cmd_file
, "-") == 0)
2358 f
= fopen(cmd_file
, "r");
2366 setbuf(stdout
, NULL
);
2367 setbuf(stderr
, NULL
);
2369 if (fgets(buf
, sizeof(buf
), f
) == NULL
)
2371 cp
= strchr(buf
, '\n');
2374 cp
= strchr(buf
, '\r');
2377 printf("debugfs: %s\n", buf
);
2378 retval
= ss_execute_line(ss_idx
, buf
);
2380 ss_perror(ss_idx
, retval
, buf
);
2389 int main(int argc
, char **argv
)
2393 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2394 "[-R request] [-V] ["
2400 int open_flags
= EXT2_FLAG_SOFTSUPP_FEATURES
| EXT2_FLAG_64BITS
;
2402 int exit_status
= 0;
2404 blk64_t superblock
= 0;
2405 blk64_t blocksize
= 0;
2406 int catastrophic
= 0;
2407 char *data_filename
= 0;
2409 const char *opt_string
= "icR:f:b:s:Vd:D";
2411 const char *opt_string
= "iwcR:f:b:s:Vd:D";
2414 if (debug_prog_name
== 0)
2416 debug_prog_name
= "rdebugfs";
2418 debug_prog_name
= "debugfs";
2420 add_error_table(&et_ext2_error_table
);
2421 fprintf (stderr
, "%s %s (%s)\n", debug_prog_name
,
2422 E2FSPROGS_VERSION
, E2FSPROGS_DATE
);
2424 while ((c
= getopt (argc
, argv
, opt_string
)) != EOF
) {
2433 data_filename
= optarg
;
2436 open_flags
|= EXT2_FLAG_IMAGE_FILE
;
2440 open_flags
|= EXT2_FLAG_RW
;
2444 open_flags
|= EXT2_FLAG_DIRECT_IO
;
2447 blocksize
= parse_ulong(optarg
, argv
[0],
2451 superblock
= parse_ulong(optarg
, argv
[0],
2452 "superblock number", 0);
2458 /* Print version number and exit */
2459 fprintf(stderr
, "\tUsing %s\n",
2460 error_message(EXT2_ET_BASE
));
2463 com_err(argv
[0], 0, usage
, debug_prog_name
);
2468 open_filesystem(argv
[optind
], open_flags
,
2469 superblock
, blocksize
, catastrophic
,
2472 sci_idx
= ss_create_invocation(debug_prog_name
, "0.0", (char *) NULL
,
2473 &debug_cmds
, &retval
);
2475 ss_perror(sci_idx
, retval
, "creating invocation");
2478 ss_get_readline(sci_idx
);
2480 (void) ss_add_request_table (sci_idx
, &ss_std_requests
, 1, &retval
);
2482 ss_perror(sci_idx
, retval
, "adding standard requests");
2486 ss_add_request_table (sci_idx
, extra_cmds
, 1, &retval
);
2488 ss_perror(sci_idx
, retval
, "adding extra requests");
2493 retval
= ss_execute_line(sci_idx
, request
);
2495 ss_perror(sci_idx
, retval
, request
);
2498 } else if (cmd_file
) {
2499 exit_status
= source_file(cmd_file
, sci_idx
);
2504 ss_delete_invocation(sci_idx
);
2509 remove_error_table(&et_ext2_error_table
);