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>
29 #ifdef HAVE_SYS_SYSMACROS_H
30 #include <sys/sysmacros.h>
34 #include "uuid/uuid.h"
37 #include <ext2fs/ext2_ext_attr.h>
39 #include "../version.h"
41 #include "support/plausible.h"
47 #ifdef CONFIG_JBD_DEBUG /* Enabled by configure --enable-jbd-debug */
48 int journal_enable_debug = -1;
51 ss_request_table *extra_cmds;
52 const char *debug_prog_name;
55 ext2_filsys current_fs;
56 quota_ctx_t current_qctx;
60 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
63 errcode_t retval = ENOMEM;
64 const char *tdb_dir = NULL;
65 char *tdb_file = NULL;
66 char *dev_name, *tmp_name;
68 /* (re)open a specific undo file */
69 if (undo_file && undo_file[0] != 0) {
70 retval = set_undo_io_backing_manager(*io_ptr);
73 *io_ptr = undo_io_manager;
74 retval = set_undo_io_backup_file(undo_file);
77 printf("Overwriting existing filesystem; this can be undone "
78 "using the command:\n"
80 undo_file, device_name);
85 * Configuration via a conf file would be
88 tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
90 tdb_dir = "/var/lib/e2fsprogs";
92 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
93 access(tdb_dir, W_OK))
96 tmp_name = strdup(device_name);
99 dev_name = basename(tmp_name);
100 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
105 sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
108 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
110 com_err("debugfs", retval,
111 "while trying to delete %s", tdb_file);
115 retval = set_undo_io_backing_manager(*io_ptr);
118 *io_ptr = undo_io_manager;
119 retval = set_undo_io_backup_file(tdb_file);
122 printf("Overwriting existing filesystem; this can be undone "
123 "using the command:\n"
124 " e2undo %s %s\n\n", tdb_file, device_name);
131 com_err("debugfs", retval, "while trying to setup undo file\n");
135 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
136 blk64_t blocksize, int catastrophic,
137 char *data_filename, char *undo_file)
140 io_channel data_io = 0;
141 io_manager io_ptr = unix_io_manager;
143 if (superblock != 0 && blocksize == 0) {
144 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
150 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
152 "The -d option is only valid when reading an e2image file");
156 retval = unix_io_manager->open(data_filename, 0, &data_io);
158 com_err(data_filename, 0, "while opening data source");
165 open_flags |= EXT2_FLAG_SKIP_MMP | EXT2_FLAG_IGNORE_SB_ERRORS;
168 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
174 retval = ext2fs_open(device, open_flags, superblock, blocksize,
175 io_ptr, ¤t_fs);
176 if (retval && (retval == EXT2_ET_SB_CSUM_INVALID) &&
177 !(open_flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
178 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
179 printf("Checksum errors in superblock! Retrying...\n");
183 com_err(debug_prog_name, retval,
184 "while trying to open %s", device);
185 if (retval == EXT2_ET_BAD_MAGIC)
186 check_plausibility(device, CHECK_FS_EXIST, NULL);
190 current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
193 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
195 retval = ext2fs_read_bitmaps(current_fs);
197 com_err(device, retval,
198 "while reading allocation bitmaps");
204 retval = ext2fs_set_data_io(current_fs, data_io);
206 com_err(device, retval,
207 "while setting data source");
212 root = cwd = EXT2_ROOT_INO;
216 retval = ext2fs_close_free(¤t_fs);
218 com_err(device, retval, "while trying to close filesystem");
221 void do_open_filesys(int argc, char **argv)
224 int catastrophic = 0;
225 blk64_t superblock = 0;
226 blk64_t blocksize = 0;
227 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
228 char *data_filename = 0;
229 char *undo_file = NULL;
232 while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
235 open_flags |= EXT2_FLAG_IMAGE_FILE;
241 open_flags |= EXT2_FLAG_RW;
242 #endif /* READ_ONLY */
245 open_flags |= EXT2_FLAG_FORCE;
248 open_flags |= EXT2_FLAG_EXCLUSIVE;
254 data_filename = optarg;
257 open_flags |= EXT2_FLAG_DIRECT_IO;
260 blocksize = parse_ulong(optarg, argv[0],
266 err = strtoblk(argv[0], optarg,
267 "superblock block number", &superblock);
278 if (optind != argc-1) {
281 if (check_fs_not_open(argv[0]))
283 open_filesystem(argv[optind], open_flags,
284 superblock, blocksize, catastrophic,
285 data_filename, undo_file);
289 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
290 "[-d image_filename] [-z undo_file] [-c] [-i] [-f] [-e] [-D] "
294 "<device>\n", argv[0]);
297 void do_lcd(int argc, char **argv)
300 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
304 if (chdir(argv[1]) == -1) {
305 com_err(argv[0], errno,
306 "while trying to change native directory to %s",
312 static void close_filesystem(NOARGS)
316 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
317 retval = ext2fs_write_inode_bitmap(current_fs);
319 com_err("ext2fs_write_inode_bitmap", retval, 0);
321 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
322 retval = ext2fs_write_block_bitmap(current_fs);
324 com_err("ext2fs_write_block_bitmap", retval, 0);
327 quota_release_context(¤t_qctx);
328 retval = ext2fs_close_free(¤t_fs);
330 com_err("ext2fs_close", retval, 0);
334 void do_close_filesys(int argc, char **argv)
338 if (check_fs_open(argv[0]))
342 while ((c = getopt (argc, argv, "a")) != EOF) {
345 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
354 com_err(0, 0, "Usage: close_filesys [-a]");
362 void do_init_filesys(int argc, char **argv)
364 struct ext2_super_block param;
369 if (common_args_process(argc, argv, 3, 3, "initialize",
370 "<device> <blocks>", CHECK_FS_NOTOPEN))
373 memset(¶m, 0, sizeof(struct ext2_super_block));
374 err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
377 ext2fs_blocks_count_set(¶m, blocks);
378 retval = ext2fs_initialize(argv[1], 0, ¶m,
379 unix_io_manager, ¤t_fs);
381 com_err(argv[1], retval, "while initializing filesystem");
385 root = cwd = EXT2_ROOT_INO;
389 static void print_features(struct ext2_super_block * s, FILE *f)
392 __u32 *mask = &s->s_feature_compat, m;
394 fputs("Filesystem features:", f);
395 for (i=0; i <3; i++,mask++) {
396 for (j=0,m=1; j < 32; j++, m<<=1) {
398 fprintf(f, " %s", e2p_feature2string(i, m));
407 #endif /* READ_ONLY */
409 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
410 const char *str, int *first, FILE *f)
412 if (ext2fs_bg_flags_test(fs, group, mask)) {
422 void do_show_super_stats(int argc, char *argv[])
424 const char *units ="block";
427 int c, header_only = 0;
428 int numdirs = 0, first, gdt_csum;
431 while ((c = getopt (argc, argv, "h")) != EOF) {
440 if (optind != argc) {
443 if (check_fs_open(argv[0]))
447 if (ext2fs_has_feature_bigalloc(current_fs->super))
450 list_super2(current_fs->super, out);
451 if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
452 !ext2fs_superblock_csum_verify(current_fs,
453 current_fs->super)) {
454 __u32 orig_csum = current_fs->super->s_checksum;
456 ext2fs_superblock_csum_set(current_fs,
458 fprintf(out, "Expected Checksum: 0x%08x\n",
459 current_fs->super->s_checksum);
460 current_fs->super->s_checksum = orig_csum;
462 for (i=0; i < current_fs->group_desc_count; i++)
463 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
464 fprintf(out, "Directories: %d\n", numdirs);
471 gdt_csum = ext2fs_has_group_desc_csum(current_fs);
472 for (i = 0; i < current_fs->group_desc_count; i++) {
473 fprintf(out, " Group %2d: block bitmap at %llu, "
474 "inode bitmap at %llu, "
475 "inode table at %llu\n"
479 i, ext2fs_block_bitmap_loc(current_fs, i),
480 ext2fs_inode_bitmap_loc(current_fs, i),
481 ext2fs_inode_table_loc(current_fs, i),
482 ext2fs_bg_free_blocks_count(current_fs, i), units,
483 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
485 ext2fs_bg_free_inodes_count(current_fs, i),
486 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
488 ext2fs_bg_used_dirs_count(current_fs, i),
489 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
490 : "directory", gdt_csum ? ", " : "\n");
492 fprintf(out, "%u unused %s\n",
493 ext2fs_bg_itable_unused(current_fs, i),
494 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
497 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
499 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
502 fprintf(out, "%sChecksum 0x%04x",
503 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
512 fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
516 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
517 char **argv EXT2FS_ATTR((unused)))
519 if (check_fs_open(argv[0]))
521 if (check_fs_read_write(argv[0]))
524 if (argv[1] && !strcmp(argv[1], "-clean"))
525 current_fs->super->s_state |= EXT2_VALID_FS;
527 current_fs->super->s_state &= ~EXT2_VALID_FS;
528 ext2fs_mark_super_dirty(current_fs);
530 #endif /* READ_ONLY */
532 struct list_blocks_struct {
535 blk64_t first_block, last_block;
536 e2_blkcnt_t first_bcnt, last_bcnt;
540 static void finish_range(struct list_blocks_struct *lb)
542 if (lb->first_block == 0)
547 fprintf(lb->f, ", ");
548 if (lb->first_block == lb->last_block)
549 fprintf(lb->f, "(%lld):%llu",
550 (long long)lb->first_bcnt, lb->first_block);
552 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
553 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
554 lb->first_block, lb->last_block);
558 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
559 blk64_t *blocknr, e2_blkcnt_t blockcnt,
560 blk64_t ref_block EXT2FS_ATTR((unused)),
561 int ref_offset EXT2FS_ATTR((unused)),
564 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
569 * See if we can add on to the existing range (if it exists)
571 if (lb->first_block &&
572 (lb->last_block+1 == *blocknr) &&
573 (lb->last_bcnt+1 == blockcnt)) {
574 lb->last_block = *blocknr;
575 lb->last_bcnt = blockcnt;
582 lb->first_block = lb->last_block = *blocknr;
583 lb->first_bcnt = lb->last_bcnt = blockcnt;
587 * Not a normal block. Always force a new range.
593 fprintf(lb->f, ", ");
595 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
596 else if (blockcnt == -2)
597 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
598 else if (blockcnt == -3)
599 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
603 static void internal_dump_inode_extra(FILE *out,
604 const char *prefix EXT2FS_ATTR((unused)),
605 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
606 struct ext2_inode_large *inode)
608 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
609 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
610 EXT2_GOOD_OLD_INODE_SIZE) {
611 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
612 inode->i_extra_isize);
617 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
619 struct list_blocks_struct lb;
621 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
626 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
627 list_blocks_proc, (void *)&lb);
630 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
634 static int int_log10(unsigned long long arg)
646 #define DUMP_LEAF_EXTENTS 0x01
647 #define DUMP_NODE_EXTENTS 0x02
648 #define DUMP_EXTENT_TABLE 0x04
650 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
651 int flags, int logical_width, int physical_width)
653 ext2_extent_handle_t handle;
654 struct ext2fs_extent extent;
655 struct ext2_extent_info info;
656 int op = EXT2_EXTENT_ROOT;
657 unsigned int printed = 0;
660 errcode = ext2fs_extent_open(current_fs, ino, &handle);
664 if (flags & DUMP_EXTENT_TABLE)
665 fprintf(f, "Level Entries %*s %*s Length Flags\n",
666 (logical_width*2)+3, "Logical",
667 (physical_width*2)+3, "Physical");
669 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
672 errcode = ext2fs_extent_get(handle, op, &extent);
677 op = EXT2_EXTENT_NEXT;
679 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
682 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
683 if ((flags & DUMP_LEAF_EXTENTS) == 0)
686 if ((flags & DUMP_NODE_EXTENTS) == 0)
690 errcode = ext2fs_extent_get_info(handle, &info);
694 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
695 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
698 if (flags & DUMP_EXTENT_TABLE) {
699 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
701 info.curr_level, info.max_depth,
702 info.curr_entry, info.num_entries,
706 extent.e_lblk + (extent.e_len - 1),
709 physical_width+3, "", extent.e_len);
713 fprintf(f, "%s(ETB%d):%lld",
714 printed ? ", " : "", info.curr_level,
720 if (flags & DUMP_EXTENT_TABLE) {
721 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
722 "%*llu - %*llu %6u %s\n",
723 info.curr_level, info.max_depth,
724 info.curr_entry, info.num_entries,
728 extent.e_lblk + (extent.e_len - 1),
732 extent.e_pblk + (extent.e_len - 1),
734 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
739 if (extent.e_len == 0)
741 else if (extent.e_len == 1)
746 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
751 "%s(%lld-%lld%s):%lld-%lld",
754 extent.e_lblk + (extent.e_len - 1),
755 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
758 extent.e_pblk + (extent.e_len - 1));
763 ext2fs_extent_free(handle);
766 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
771 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
773 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
776 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
777 struct ext2_inode *inode, const char *prefix)
783 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
787 retval = ext2fs_get_memzero(size + 1, &buf);
791 retval = ext2fs_inline_data_get(current_fs, inode_num,
796 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
800 ext2fs_free_mem(&buf);
802 com_err(__func__, retval, "while dumping link destination");
805 void internal_dump_inode(FILE *out, const char *prefix,
806 ext2_ino_t inode_num, struct ext2_inode *inode,
811 int os = current_fs->super->s_creator_os;
812 struct ext2_inode_large *large_inode;
813 int is_large_inode = 0;
815 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
817 large_inode = (struct ext2_inode_large *) inode;
819 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
820 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
821 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
822 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
823 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
824 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
825 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
826 else i_type = "bad type";
827 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
828 fprintf(out, "%sMode: 0%03o Flags: 0x%x\n",
829 prefix, inode->i_mode & 07777, inode->i_flags);
830 if (is_large_inode && large_inode->i_extra_isize >= 24) {
831 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
832 prefix, inode->i_generation, large_inode->i_version_hi,
833 inode->osd1.linux1.l_i_version);
835 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
836 inode->i_generation, inode->osd1.linux1.l_i_version);
838 fprintf(out, "%sUser: %5d Group: %5d",
839 prefix, inode_uid(*inode), inode_gid(*inode));
840 if (is_large_inode && large_inode->i_extra_isize >= 32)
841 fprintf(out, " Project: %5d", large_inode->i_projid);
842 fputs(" Size: ", out);
843 if (LINUX_S_ISREG(inode->i_mode))
844 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
846 fprintf(out, "%d\n", inode->i_size);
847 if (os == EXT2_OS_HURD)
849 "%sFile ACL: %d Translator: %d\n",
852 inode->osd1.hurd1.h_i_translator);
854 fprintf(out, "%sFile ACL: %llu\n",
856 inode->i_file_acl | ((long long)
857 (inode->osd2.linux2.l_i_file_acl_high) << 32));
858 if (os != EXT2_OS_HURD)
859 fprintf(out, "%sLinks: %d Blockcount: %llu\n",
860 prefix, inode->i_links_count,
861 (((unsigned long long)
862 inode->osd2.linux2.l_i_blocks_hi << 32)) +
865 fprintf(out, "%sLinks: %d Blockcount: %u\n",
866 prefix, inode->i_links_count, inode->i_blocks);
869 frag = inode->osd2.hurd2.h_i_frag;
870 fsize = inode->osd2.hurd2.h_i_fsize;
875 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
876 prefix, inode->i_faddr, frag, fsize);
877 if (is_large_inode && large_inode->i_extra_isize >= 24) {
878 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
879 inode->i_ctime, large_inode->i_ctime_extra,
880 inode_time_to_string(inode->i_ctime,
881 large_inode->i_ctime_extra));
882 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
883 inode->i_atime, large_inode->i_atime_extra,
884 inode_time_to_string(inode->i_atime,
885 large_inode->i_atime_extra));
886 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
887 inode->i_mtime, large_inode->i_mtime_extra,
888 inode_time_to_string(inode->i_mtime,
889 large_inode->i_mtime_extra));
890 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
891 large_inode->i_crtime, large_inode->i_crtime_extra,
892 inode_time_to_string(large_inode->i_crtime,
893 large_inode->i_crtime_extra));
895 fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
896 large_inode->i_dtime, large_inode->i_ctime_extra,
897 inode_time_to_string(inode->i_dtime,
898 large_inode->i_ctime_extra));
900 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
901 time_to_string((__s32) inode->i_ctime));
902 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
903 time_to_string((__s32) inode->i_atime));
904 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
905 time_to_string((__s32) inode->i_mtime));
907 fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
909 time_to_string((__s32) inode->i_dtime));
911 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
912 internal_dump_inode_extra(out, prefix, inode_num,
913 (struct ext2_inode_large *) inode);
914 dump_inode_attributes(out, inode_num);
915 if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
916 __u32 crc = inode->i_checksum_lo;
917 if (is_large_inode &&
918 large_inode->i_extra_isize >=
919 (offsetof(struct ext2_inode_large,
921 EXT2_GOOD_OLD_INODE_SIZE))
922 crc |= ((__u32)large_inode->i_checksum_hi) << 16;
923 fprintf(out, "Inode checksum: 0x%08x\n", crc);
926 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
927 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
928 (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
929 else if (LINUX_S_ISLNK(inode->i_mode) &&
930 (inode->i_flags & EXT4_INLINE_DATA_FL))
931 dump_inline_symlink(out, inode_num, inode, prefix);
932 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
936 if (inode->i_block[0]) {
937 major = (inode->i_block[0] >> 8) & 255;
938 minor = inode->i_block[0] & 255;
941 major = (inode->i_block[1] & 0xfff00) >> 8;
942 minor = ((inode->i_block[1] & 0xff) |
943 ((inode->i_block[1] >> 12) & 0xfff00));
944 devnote = "(New-style) ";
946 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
947 devnote, major, minor, major, minor);
948 } else if (do_dump_blocks) {
949 if (inode->i_flags & EXT4_EXTENTS_FL)
950 dump_extents(out, prefix, inode_num,
951 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
952 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
953 dump_inline_data(out, prefix, inode_num);
955 dump_blocks(out, prefix, inode_num);
959 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
964 internal_dump_inode(out, "", inode_num, inode, 1);
968 void do_stat(int argc, char *argv[])
971 struct ext2_inode * inode_buf;
973 if (check_fs_open(argv[0]))
976 inode_buf = (struct ext2_inode *)
977 malloc(EXT2_INODE_SIZE(current_fs->super));
979 fprintf(stderr, "do_stat: can't allocate buffer\n");
983 if (common_inode_args_process(argc, argv, &inode, 0)) {
988 if (debugfs_read_inode_full(inode, inode_buf, argv[0],
989 EXT2_INODE_SIZE(current_fs->super))) {
994 dump_inode(inode, inode_buf);
999 void do_dump_extents(int argc, char **argv)
1001 struct ext2_inode inode;
1009 while ((c = getopt(argc, argv, "nl")) != EOF) {
1012 flags |= DUMP_NODE_EXTENTS;
1015 flags |= DUMP_LEAF_EXTENTS;
1020 if (argc != optind + 1) {
1021 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1026 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1027 flags |= DUMP_EXTENT_TABLE;
1029 if (check_fs_open(argv[0]))
1032 ino = string_to_inode(argv[optind]);
1036 if (debugfs_read_inode(ino, &inode, argv[0]))
1039 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1040 fprintf(stderr, "%s: does not uses extent block maps\n",
1045 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1046 current_fs->blocksize) + 1;
1047 if (logical_width < 5)
1049 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1050 if (physical_width < 5)
1054 dump_extents(out, "", ino, flags, logical_width, physical_width);
1059 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1061 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1062 blk64_t ref_block EXT2FS_ATTR((unused)),
1063 int ref_offset EXT2FS_ATTR((unused)),
1064 void *private EXT2FS_ATTR((unused)))
1066 printf("%llu ", *blocknr);
1070 void do_blocks(int argc, char *argv[])
1074 if (check_fs_open(argv[0]))
1077 if (common_inode_args_process(argc, argv, &inode, 0)) {
1081 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1082 print_blocks_proc, NULL);
1083 fputc('\n', stdout);
1087 void do_chroot(int argc, char *argv[])
1092 if (common_inode_args_process(argc, argv, &inode, 0))
1095 retval = ext2fs_check_directory(current_fs, inode);
1097 com_err(argv[1], retval, 0);
1104 void do_clri(int argc, char *argv[])
1107 struct ext2_inode inode_buf;
1109 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1112 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1114 memset(&inode_buf, 0, sizeof(inode_buf));
1115 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1119 void do_freei(int argc, char *argv[])
1121 unsigned int len = 1;
1125 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1126 CHECK_FS_RW | CHECK_FS_BITMAPS))
1128 if (check_fs_read_write(argv[0]))
1131 inode = string_to_inode(argv[1]);
1136 len = parse_ulong(argv[2], argv[0], "length", &err);
1142 !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1143 com_err(argv[0], 0, "Warning: inode already clear");
1145 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1146 ext2fs_mark_ib_dirty(current_fs);
1149 void do_seti(int argc, char *argv[])
1151 unsigned int len = 1;
1155 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1156 CHECK_FS_RW | CHECK_FS_BITMAPS))
1158 if (check_fs_read_write(argv[0]))
1161 inode = string_to_inode(argv[1]);
1166 len = parse_ulong(argv[2], argv[0], "length", &err);
1172 ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1173 com_err(argv[0], 0, "Warning: inode already set");
1175 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1176 ext2fs_mark_ib_dirty(current_fs);
1178 #endif /* READ_ONLY */
1180 void do_testi(int argc, char *argv[])
1184 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1187 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1188 printf("Inode %u is marked in use\n", inode);
1190 printf("Inode %u is not in use\n", inode);
1194 void do_freeb(int argc, char *argv[])
1199 if (common_block_args_process(argc, argv, &block, &count))
1201 if (check_fs_read_write(argv[0]))
1203 while (count-- > 0) {
1204 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1205 com_err(argv[0], 0, "Warning: block %llu already clear",
1207 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1210 ext2fs_mark_bb_dirty(current_fs);
1213 void do_setb(int argc, char *argv[])
1218 if (common_block_args_process(argc, argv, &block, &count))
1220 if (check_fs_read_write(argv[0]))
1222 while (count-- > 0) {
1223 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1224 com_err(argv[0], 0, "Warning: block %llu already set",
1226 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1229 ext2fs_mark_bb_dirty(current_fs);
1231 #endif /* READ_ONLY */
1233 void do_testb(int argc, char *argv[])
1238 if (common_block_args_process(argc, argv, &block, &count))
1240 while (count-- > 0) {
1241 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1242 printf("Block %llu marked in use\n", block);
1244 printf("Block %llu not in use\n", block);
1250 static void modify_u8(char *com, const char *prompt,
1251 const char *format, __u8 *val)
1257 sprintf(buf, format, *val);
1258 printf("%30s [%s] ", prompt, buf);
1259 if (!fgets(buf, sizeof(buf), stdin))
1261 if (buf[strlen (buf) - 1] == '\n')
1262 buf[strlen (buf) - 1] = '\0';
1265 v = strtoul(buf, &tmp, 0);
1267 com_err(com, 0, "Bad value - %s", buf);
1272 static void modify_u16(char *com, const char *prompt,
1273 const char *format, __u16 *val)
1279 sprintf(buf, format, *val);
1280 printf("%30s [%s] ", prompt, buf);
1281 if (!fgets(buf, sizeof(buf), stdin))
1283 if (buf[strlen (buf) - 1] == '\n')
1284 buf[strlen (buf) - 1] = '\0';
1287 v = strtoul(buf, &tmp, 0);
1289 com_err(com, 0, "Bad value - %s", buf);
1294 static void modify_u32(char *com, const char *prompt,
1295 const char *format, __u32 *val)
1301 sprintf(buf, format, *val);
1302 printf("%30s [%s] ", prompt, buf);
1303 if (!fgets(buf, sizeof(buf), stdin))
1305 if (buf[strlen (buf) - 1] == '\n')
1306 buf[strlen (buf) - 1] = '\0';
1309 v = strtoul(buf, &tmp, 0);
1311 com_err(com, 0, "Bad value - %s", buf);
1317 void do_modify_inode(int argc, char *argv[])
1319 struct ext2_inode inode;
1320 ext2_ino_t inode_num;
1322 unsigned char *frag, *fsize;
1325 const char *hex_format = "0x%x";
1326 const char *octal_format = "0%o";
1327 const char *decimal_format = "%d";
1328 const char *unsignedlong_format = "%lu";
1330 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1333 os = current_fs->super->s_creator_os;
1335 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1338 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1339 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1340 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1341 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1342 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1343 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1344 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1345 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1346 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1347 if (os == EXT2_OS_LINUX)
1348 modify_u16(argv[0], "Block count high", unsignedlong_format,
1349 &inode.osd2.linux2.l_i_blocks_hi);
1350 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1351 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1352 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1354 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1356 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1358 modify_u32(argv[0], "High 32bits of size", decimal_format,
1359 &inode.i_size_high);
1361 if (os == EXT2_OS_HURD)
1362 modify_u32(argv[0], "Translator Block",
1363 decimal_format, &inode.osd1.hurd1.h_i_translator);
1365 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1368 frag = &inode.osd2.hurd2.h_i_frag;
1369 fsize = &inode.osd2.hurd2.h_i_fsize;
1375 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1377 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1379 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1380 sprintf(buf, "Direct Block #%d", i);
1381 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1383 modify_u32(argv[0], "Indirect Block", decimal_format,
1384 &inode.i_block[EXT2_IND_BLOCK]);
1385 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1386 &inode.i_block[EXT2_DIND_BLOCK]);
1387 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1388 &inode.i_block[EXT2_TIND_BLOCK]);
1389 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1392 #endif /* READ_ONLY */
1394 void do_change_working_dir(int argc, char *argv[])
1399 if (common_inode_args_process(argc, argv, &inode, 0))
1402 retval = ext2fs_check_directory(current_fs, inode);
1404 com_err(argv[1], retval, 0);
1411 void do_print_working_directory(int argc, char *argv[])
1414 char *pathname = NULL;
1416 if (common_args_process(argc, argv, 1, 1,
1417 "print_working_directory", "", 0))
1420 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1422 com_err(argv[0], retval,
1423 "while trying to get pathname of cwd");
1425 printf("[pwd] INODE: %6u PATH: %s\n",
1426 cwd, pathname ? pathname : "NULL");
1431 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1433 com_err(argv[0], retval,
1434 "while trying to get pathname of root");
1436 printf("[root] INODE: %6u PATH: %s\n",
1437 root, pathname ? pathname : "NULL");
1446 static void make_link(char *sourcename, char *destname)
1449 struct ext2_inode inode;
1452 char *dest, *cp, *base_name;
1455 * Get the source inode
1457 ino = string_to_inode(sourcename);
1460 base_name = strrchr(sourcename, '/');
1464 base_name = sourcename;
1466 * Figure out the destination. First see if it exists and is
1469 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1473 * OK, it doesn't exist. See if it is
1474 * '<dir>/basename' or 'basename'
1476 cp = strrchr(destname, '/');
1479 dir = string_to_inode(destname);
1489 if (debugfs_read_inode(ino, &inode, sourcename))
1492 retval = ext2fs_link(current_fs, dir, dest, ino,
1493 ext2_file_type(inode.i_mode));
1495 com_err("make_link", retval, 0);
1500 void do_link(int argc, char *argv[])
1502 if (common_args_process(argc, argv, 3, 3, "link",
1503 "<source file> <dest_name>", CHECK_FS_RW))
1506 make_link(argv[1], argv[2]);
1509 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1510 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1511 blk64_t ref_block EXT2FS_ATTR((unused)),
1512 int ref_offset EXT2FS_ATTR((unused)),
1513 void *private EXT2FS_ATTR((unused)))
1518 ext2fs_block_alloc_stats2(fs, block, +1);
1522 void do_undel(int argc, char *argv[])
1525 struct ext2_inode inode;
1527 if (common_args_process(argc, argv, 2, 3, "undelete",
1528 "<inode_num> [dest_name]",
1529 CHECK_FS_RW | CHECK_FS_BITMAPS))
1532 ino = string_to_inode(argv[1]);
1536 if (debugfs_read_inode(ino, &inode, argv[1]))
1539 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1540 com_err(argv[1], 0, "Inode is not marked as deleted");
1545 * XXX this function doesn't handle changing the links count on the
1546 * parent directory when undeleting a directory.
1548 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1551 if (debugfs_write_inode(ino, &inode, argv[0]))
1554 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1555 mark_blocks_proc, NULL);
1557 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1560 make_link(argv[1], argv[2]);
1563 static void unlink_file_by_name(char *filename)
1569 base_name = strrchr(filename, '/');
1571 *base_name++ = '\0';
1572 dir = string_to_inode(filename);
1577 base_name = filename;
1579 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1581 com_err("unlink_file_by_name", retval, 0);
1585 void do_unlink(int argc, char *argv[])
1587 if (common_args_process(argc, argv, 2, 2, "link",
1588 "<pathname>", CHECK_FS_RW))
1591 unlink_file_by_name(argv[1]);
1594 void do_copy_inode(int argc, char *argv[])
1596 ext2_ino_t src_ino, dest_ino;
1597 unsigned char buf[4096];
1599 if (common_args_process(argc, argv, 3, 3, "copy_inode",
1600 "<source file> <dest_name>", CHECK_FS_RW))
1603 src_ino = string_to_inode(argv[1]);
1607 dest_ino = string_to_inode(argv[2]);
1611 if (debugfs_read_inode_full(src_ino, (struct ext2_inode *) buf,
1612 argv[0], sizeof(buf)))
1615 if (debugfs_write_inode_full(dest_ino, (struct ext2_inode *) buf,
1616 argv[0], sizeof(buf)))
1620 #endif /* READ_ONLY */
1622 void do_find_free_block(int argc, char *argv[])
1624 blk64_t free_blk, goal, first_free = 0;
1629 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1630 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1633 if (check_fs_open(argv[0]))
1637 count = strtol(argv[1],&tmp,0);
1639 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1646 goal = strtol(argv[2], &tmp, 0);
1648 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1653 goal = current_fs->super->s_first_data_block;
1655 printf("Free blocks found: ");
1656 free_blk = goal - 1;
1657 while (count-- > 0) {
1658 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1661 if (first_free == free_blk)
1664 first_free = free_blk;
1666 com_err("ext2fs_new_block", retval, 0);
1669 printf("%llu ", free_blk);
1674 void do_find_free_inode(int argc, char *argv[])
1676 ext2_ino_t free_inode, dir;
1681 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1682 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1685 if (check_fs_open(argv[0]))
1689 dir = strtol(argv[1], &tmp, 0);
1691 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1698 mode = strtol(argv[2], &tmp, 0);
1700 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1706 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1708 com_err("ext2fs_new_inode", retval, 0);
1710 printf("Free inode found: %u\n", free_inode);
1714 void do_write(int argc, char *argv[])
1718 if (common_args_process(argc, argv, 3, 3, "write",
1719 "<native file> <new file>", CHECK_FS_RW))
1722 retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1724 com_err(argv[0], retval, 0);
1727 void do_mknod(int argc, char *argv[])
1729 unsigned long major, minor;
1734 if (check_fs_open(argv[0]))
1736 if (argc < 3 || argv[2][1]) {
1738 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1743 switch (argv[2][0]) {
1745 st.st_mode = S_IFIFO;
1749 st.st_mode = S_IFCHR;
1753 st.st_mode = S_IFBLK;
1761 major = strtoul(argv[3], argv+3, 0);
1762 minor = strtoul(argv[4], argv+4, 0);
1763 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1770 st.st_rdev = makedev(major, minor);
1771 retval = do_mknod_internal(current_fs, cwd, argv[1],
1772 st.st_mode, st.st_rdev);
1774 com_err(argv[0], retval, 0);
1777 void do_mkdir(int argc, char *argv[])
1781 if (common_args_process(argc, argv, 2, 2, "mkdir",
1782 "<filename>", CHECK_FS_RW))
1785 retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1787 com_err(argv[0], retval, 0);
1791 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1792 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1793 blk64_t ref_block EXT2FS_ATTR((unused)),
1794 int ref_offset EXT2FS_ATTR((unused)),
1797 blk64_t block = *blocknr;
1798 blk64_t *last_cluster = (blk64_t *)private;
1799 blk64_t cluster = EXT2FS_B2C(fs, block);
1801 if (cluster == *last_cluster)
1804 *last_cluster = cluster;
1806 ext2fs_block_alloc_stats2(fs, block, -1);
1810 static void kill_file_by_inode(ext2_ino_t inode)
1812 struct ext2_inode inode_buf;
1814 if (debugfs_read_inode(inode, &inode_buf, 0))
1816 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1817 if (debugfs_write_inode(inode, &inode_buf, 0))
1819 if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1820 blk64_t last_cluster = 0;
1821 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1822 NULL, release_blocks_proc, &last_cluster);
1825 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1826 LINUX_S_ISDIR(inode_buf.i_mode));
1830 void do_kill_file(int argc, char *argv[])
1832 ext2_ino_t inode_num;
1834 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1837 kill_file_by_inode(inode_num);
1840 void do_rm(int argc, char *argv[])
1843 ext2_ino_t inode_num;
1844 struct ext2_inode inode;
1846 if (common_args_process(argc, argv, 2, 2, "rm",
1847 "<filename>", CHECK_FS_RW))
1850 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1852 com_err(argv[0], retval, "while trying to resolve filename");
1856 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1859 if (LINUX_S_ISDIR(inode.i_mode)) {
1860 com_err(argv[0], 0, "file is a directory");
1864 --inode.i_links_count;
1865 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1868 unlink_file_by_name(argv[1]);
1869 if (inode.i_links_count == 0)
1870 kill_file_by_inode(inode_num);
1878 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1879 int entry EXT2FS_ATTR((unused)),
1880 struct ext2_dir_entry *dirent,
1881 int offset EXT2FS_ATTR((unused)),
1882 int blocksize EXT2FS_ATTR((unused)),
1883 char *buf EXT2FS_ATTR((unused)),
1886 struct rd_struct *rds = (struct rd_struct *) private;
1888 if (dirent->inode == 0)
1890 if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1892 if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1893 (dirent->name[1] == '.')) {
1894 rds->parent = dirent->inode;
1901 void do_rmdir(int argc, char *argv[])
1904 ext2_ino_t inode_num;
1905 struct ext2_inode inode;
1906 struct rd_struct rds;
1908 if (common_args_process(argc, argv, 2, 2, "rmdir",
1909 "<filename>", CHECK_FS_RW))
1912 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1914 com_err(argv[0], retval, "while trying to resolve filename");
1918 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1921 if (!LINUX_S_ISDIR(inode.i_mode)) {
1922 com_err(argv[0], 0, "file is not a directory");
1929 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1930 0, rmdir_proc, &rds);
1932 com_err(argv[0], retval, "while iterating over directory");
1935 if (rds.empty == 0) {
1936 com_err(argv[0], 0, "directory not empty");
1940 inode.i_links_count = 0;
1941 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1944 unlink_file_by_name(argv[1]);
1945 kill_file_by_inode(inode_num);
1948 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1950 if (inode.i_links_count > 1)
1951 inode.i_links_count--;
1952 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1956 #endif /* READ_ONLY */
1958 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1959 char *argv[] EXT2FS_ATTR((unused)))
1962 printf("Open mode: read-%s\n",
1963 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1964 printf("Filesystem in use: %s\n",
1965 current_fs ? current_fs->device_name : "--none--");
1969 void do_expand_dir(int argc, char *argv[])
1974 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1977 retval = ext2fs_expand_dir(current_fs, inode);
1979 com_err("ext2fs_expand_dir", retval, 0);
1983 void do_features(int argc, char *argv[])
1987 if (check_fs_open(argv[0]))
1990 if ((argc != 1) && check_fs_read_write(argv[0]))
1992 for (i=1; i < argc; i++) {
1993 if (e2p_edit_feature(argv[i],
1994 ¤t_fs->super->s_feature_compat, 0))
1995 com_err(argv[0], 0, "Unknown feature: %s\n",
1998 ext2fs_mark_super_dirty(current_fs);
2000 print_features(current_fs->super, stdout);
2002 #endif /* READ_ONLY */
2004 void do_bmap(int argc, char *argv[])
2007 blk64_t blk, pblk = 0;
2008 int c, err, flags = 0, ret_flags = 0;
2011 if (check_fs_open(argv[0]))
2015 while ((c = getopt (argc, argv, "a")) != EOF) {
2018 flags |= BMAP_ALLOC;
2025 if (argc <= optind+1) {
2028 "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2032 ino = string_to_inode(argv[optind++]);
2035 err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2039 if (argc > optind+1)
2042 if (argc == optind+1) {
2043 err = strtoblk(argv[0], argv[optind++],
2044 "physical block", &pblk);
2047 if (flags & BMAP_ALLOC) {
2048 com_err(0, 0, "Can't set and allocate a block");
2054 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2057 com_err(argv[0], errcode,
2058 "while mapping logical block %llu\n", blk);
2061 printf("%llu", pblk);
2062 if (ret_flags & BMAP_RET_UNINIT)
2063 fputs(" (uninit)", stdout);
2064 fputc('\n', stdout);
2067 void do_imap(int argc, char *argv[])
2070 unsigned long group, block, block_nr, offset;
2072 if (common_args_process(argc, argv, 2, 2, argv[0],
2075 ino = string_to_inode(argv[1]);
2079 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2080 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2081 EXT2_INODE_SIZE(current_fs->super);
2082 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2083 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2084 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2088 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2090 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2092 printf("Inode %d is part of block group %lu\n"
2093 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2098 void do_idump(int argc, char *argv[])
2100 struct ext2_inode_large *inode;
2104 unsigned int isize, size, offset = 0;
2108 while ((c = getopt (argc, argv, "bex")) != EOF) {
2109 if (mode || c == '?') {
2111 "Usage: inode_dump [-b]|[-e] <file>");
2116 if (optind != argc-1)
2119 if (check_fs_open(argv[0]))
2122 ino = string_to_inode(argv[optind]);
2126 isize = EXT2_INODE_SIZE(current_fs->super);
2127 err = ext2fs_get_mem(isize, &buf);
2129 com_err(argv[0], err, "while allocating memory");
2133 err = ext2fs_read_inode_full(current_fs, ino,
2134 (struct ext2_inode *)buf, isize);
2136 com_err(argv[0], err, "while reading inode %u", ino);
2140 inode = (struct ext2_inode_large *) buf;
2144 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2145 size = sizeof(inode->i_block);
2149 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2150 com_err(argv[0], 0, "No extra space in inode");
2153 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2160 raw_inode_xattr_dump(stdout, buf + offset, size);
2162 do_byte_hexdump(stdout, buf + offset, size);
2164 ext2fs_free_mem(&buf);
2168 void do_set_current_time(int argc, char *argv[])
2172 if (common_args_process(argc, argv, 2, 2, argv[0],
2176 now = string_to_time(argv[1]);
2178 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2183 printf("Setting current time to %s\n", time_to_string(now));
2184 current_fs->now = now;
2187 #endif /* READ_ONLY */
2189 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2191 int compat, bit, ret;
2192 unsigned int feature_mask;
2195 if (feature_type == E2P_FS_FEATURE)
2196 ret = e2p_string2feature(name, &compat, &feature_mask);
2198 ret = e2p_jrnl_string2feature(name, &compat,
2203 if (!(supp[compat] & feature_mask))
2206 for (compat = 0; compat < 3; compat++) {
2207 for (bit = 0, feature_mask = 1; bit < 32;
2208 bit++, feature_mask <<= 1) {
2209 if (supp[compat] & feature_mask) {
2210 if (feature_type == E2P_FS_FEATURE)
2211 fprintf(stdout, " %s",
2212 e2p_feature2string(compat,
2215 fprintf(stdout, " %s",
2216 e2p_jrnl_feature2string(compat,
2221 fprintf(stdout, "\n");
2227 void do_supported_features(int argc, char *argv[])
2230 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2231 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2232 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2233 __u32 jrnl_supp[3] = { JFS_KNOWN_COMPAT_FEATURES,
2234 JFS_KNOWN_INCOMPAT_FEATURES,
2235 JFS_KNOWN_ROCOMPAT_FEATURES };
2238 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2240 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2244 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2246 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2248 fprintf(stdout, "Supported features:");
2249 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2250 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2255 void do_punch(int argc, char *argv[])
2262 if (common_args_process(argc, argv, 3, 4, argv[0],
2263 "<file> start_blk [end_blk]",
2264 CHECK_FS_RW | CHECK_FS_BITMAPS))
2267 ino = string_to_inode(argv[1]);
2270 err = strtoblk(argv[0], argv[2], "logical block", &start);
2274 err = strtoblk(argv[0], argv[3], "logical block", &end);
2280 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2283 com_err(argv[0], errcode,
2284 "while truncating inode %u from %llu to %llu\n", ino,
2285 (unsigned long long) start, (unsigned long long) end);
2290 void do_fallocate(int argc, char *argv[])
2297 if (common_args_process(argc, argv, 3, 4, argv[0],
2298 "<file> start_blk [end_blk]",
2299 CHECK_FS_RW | CHECK_FS_BITMAPS))
2302 ino = string_to_inode(argv[1]);
2305 err = strtoblk(argv[0], argv[2], "logical block", &start);
2309 err = strtoblk(argv[0], argv[3], "logical block", &end);
2315 errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2316 ino, NULL, ~0ULL, start, end - start + 1);
2319 com_err(argv[0], errcode,
2320 "while fallocating inode %u from %llu to %llu\n", ino,
2321 (unsigned long long) start, (unsigned long long) end);
2325 #endif /* READ_ONLY */
2327 void do_symlink(int argc, char *argv[])
2331 if (common_args_process(argc, argv, 3, 3, "symlink",
2332 "<filename> <target>", CHECK_FS_RW))
2335 retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2337 com_err(argv[0], retval, 0);
2342 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[])
2344 struct mmp_struct *mmp_s;
2345 unsigned long long mmp_block;
2347 errcode_t retval = 0;
2349 if (check_fs_open(argv[0]))
2354 mmp_block = strtoull(argv[1], &end, 0);
2355 if (end == argv[0] || mmp_block == 0) {
2356 fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2361 mmp_block = current_fs->super->s_mmp_block;
2364 if (mmp_block == 0) {
2365 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2370 if (current_fs->mmp_buf == NULL) {
2371 retval = ext2fs_get_mem(current_fs->blocksize,
2372 ¤t_fs->mmp_buf);
2374 com_err(argv[0], retval, "allocating MMP buffer.\n");
2379 mmp_s = current_fs->mmp_buf;
2381 retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2383 com_err(argv[0], retval, "reading MMP block %llu.\n",
2388 t = mmp_s->mmp_time;
2389 fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2390 fprintf(stdout, "update_interval: %d\n",
2391 current_fs->super->s_mmp_update_interval);
2392 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2393 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2394 fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2395 fprintf(stdout, "node_name: %s\n", mmp_s->mmp_nodename);
2396 fprintf(stdout, "device_name: %s\n", mmp_s->mmp_bdevname);
2397 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2398 fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2401 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2402 char *argv[] EXT2FS_ATTR((unused)))
2404 fprintf(stdout, "MMP is unsupported, please recompile with "
2409 static int source_file(const char *cmd_file, int ss_idx)
2414 int exit_status = 0;
2417 if (strcmp(cmd_file, "-") == 0)
2420 f = fopen(cmd_file, "r");
2428 setbuf(stdout, NULL);
2429 setbuf(stderr, NULL);
2431 if (fgets(buf, sizeof(buf), f) == NULL)
2433 cp = strchr(buf, '\n');
2436 cp = strchr(buf, '\r');
2439 printf("debugfs: %s\n", buf);
2440 retval = ss_execute_line(ss_idx, buf);
2442 ss_perror(ss_idx, retval, buf);
2451 int main(int argc, char **argv)
2455 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2456 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2458 "[-w] [-z undo_file] "
2462 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS;
2464 int exit_status = 0;
2466 blk64_t superblock = 0;
2467 blk64_t blocksize = 0;
2468 int catastrophic = 0;
2469 char *data_filename = 0;
2471 const char *opt_string = "nicR:f:b:s:Vd:D";
2473 const char *opt_string = "niwcR:f:b:s:Vd:Dz:";
2474 char *undo_file = NULL;
2476 #ifdef CONFIG_JBD_DEBUG
2480 if (debug_prog_name == 0)
2482 debug_prog_name = "rdebugfs";
2484 debug_prog_name = "debugfs";
2486 add_error_table(&et_ext2_error_table);
2487 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2488 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2490 #ifdef CONFIG_JBD_DEBUG
2491 jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2493 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2497 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2503 while ((c = getopt (argc, argv, opt_string)) != EOF) {
2512 data_filename = optarg;
2515 open_flags |= EXT2_FLAG_IMAGE_FILE;
2518 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2522 open_flags |= EXT2_FLAG_RW;
2526 open_flags |= EXT2_FLAG_DIRECT_IO;
2529 blocksize = parse_ulong(optarg, argv[0],
2533 retval = strtoblk(argv[0], optarg,
2534 "superblock block number",
2543 /* Print version number and exit */
2544 fprintf(stderr, "\tUsing %s\n",
2545 error_message(EXT2_ET_BASE));
2551 com_err(argv[0], 0, usage, debug_prog_name);
2556 open_filesystem(argv[optind], open_flags,
2557 superblock, blocksize, catastrophic,
2558 data_filename, undo_file);
2560 sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2561 &debug_cmds, &retval);
2563 ss_perror(sci_idx, retval, "creating invocation");
2566 ss_get_readline(sci_idx);
2568 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
2570 ss_perror(sci_idx, retval, "adding standard requests");
2574 ss_add_request_table (sci_idx, extra_cmds, 1, &retval);
2576 ss_perror(sci_idx, retval, "adding extra requests");
2581 retval = ss_execute_line(sci_idx, request);
2583 ss_perror(sci_idx, retval, request);
2586 } else if (cmd_file) {
2587 exit_status = source_file(cmd_file, sci_idx);
2592 ss_delete_invocation(sci_idx);
2597 remove_error_table(&et_ext2_error_table);