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;
52 * There must be only one definition if we're hooking in extra commands or
53 * chaging default prompt. Use -DSKIP_GLOBDEF for that.
56 ss_request_table *extra_cmds;
57 const char *debug_prog_name;
61 ext2_filsys current_fs;
62 quota_ctx_t current_qctx;
66 static int debugfs_setup_tdb(const char *device_name, char *undo_file,
69 errcode_t retval = ENOMEM;
70 const char *tdb_dir = NULL;
71 char *tdb_file = NULL;
72 char *dev_name, *tmp_name;
74 /* (re)open a specific undo file */
75 if (undo_file && undo_file[0] != 0) {
76 retval = set_undo_io_backing_manager(*io_ptr);
79 *io_ptr = undo_io_manager;
80 retval = set_undo_io_backup_file(undo_file);
83 printf("Overwriting existing filesystem; this can be undone "
84 "using the command:\n"
86 undo_file, device_name);
91 * Configuration via a conf file would be
94 tdb_dir = ss_safe_getenv("E2FSPROGS_UNDO_DIR");
96 tdb_dir = "/var/lib/e2fsprogs";
98 if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
99 access(tdb_dir, W_OK))
102 tmp_name = strdup(device_name);
105 dev_name = basename(tmp_name);
106 tdb_file = malloc(strlen(tdb_dir) + 9 + strlen(dev_name) + 7 + 1);
111 sprintf(tdb_file, "%s/debugfs-%s.e2undo", tdb_dir, dev_name);
114 if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
116 com_err("debugfs", retval,
117 "while trying to delete %s", tdb_file);
121 retval = set_undo_io_backing_manager(*io_ptr);
124 *io_ptr = undo_io_manager;
125 retval = set_undo_io_backup_file(tdb_file);
128 printf("Overwriting existing filesystem; this can be undone "
129 "using the command:\n"
130 " e2undo %s %s\n\n", tdb_file, device_name);
137 com_err("debugfs", retval, "while trying to setup undo file\n");
141 static void open_filesystem(char *device, int open_flags, blk64_t superblock,
142 blk64_t blocksize, int catastrophic,
143 char *data_filename, char *undo_file)
146 io_channel data_io = 0;
147 io_manager io_ptr = unix_io_manager;
149 if (superblock != 0 && blocksize == 0) {
150 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
156 if ((open_flags & EXT2_FLAG_IMAGE_FILE) == 0) {
158 "The -d option is only valid when reading an e2image file");
162 retval = unix_io_manager->open(data_filename, 0, &data_io);
164 com_err(data_filename, 0, "while opening data source");
171 open_flags |= EXT2_FLAG_SKIP_MMP | EXT2_FLAG_IGNORE_SB_ERRORS;
174 retval = debugfs_setup_tdb(device, undo_file, &io_ptr);
180 retval = ext2fs_open(device, open_flags, superblock, blocksize,
181 io_ptr, ¤t_fs);
182 if (retval && (retval == EXT2_ET_SB_CSUM_INVALID) &&
183 !(open_flags & EXT2_FLAG_IGNORE_CSUM_ERRORS)) {
184 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
185 printf("Checksum errors in superblock! Retrying...\n");
189 com_err(debug_prog_name, retval,
190 "while trying to open %s", device);
191 if (retval == EXT2_ET_BAD_MAGIC)
192 check_plausibility(device, CHECK_FS_EXIST, NULL);
196 current_fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
199 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
201 retval = ext2fs_read_bitmaps(current_fs);
203 com_err(device, retval,
204 "while reading allocation bitmaps");
210 retval = ext2fs_set_data_io(current_fs, data_io);
212 com_err(device, retval,
213 "while setting data source");
218 root = cwd = EXT2_ROOT_INO;
222 retval = ext2fs_close_free(¤t_fs);
224 com_err(device, retval, "while trying to close filesystem");
227 void do_open_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
228 void *infop EXT2FS_ATTR((unused)))
231 int catastrophic = 0;
232 blk64_t superblock = 0;
233 blk64_t blocksize = 0;
234 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES | EXT2_FLAG_64BITS |
236 char *data_filename = 0;
237 char *undo_file = NULL;
240 while ((c = getopt(argc, argv, "iwfecb:s:d:Dz:")) != EOF) {
243 open_flags |= EXT2_FLAG_IMAGE_FILE;
249 open_flags |= EXT2_FLAG_RW;
250 #endif /* READ_ONLY */
253 open_flags |= EXT2_FLAG_FORCE;
256 open_flags |= EXT2_FLAG_EXCLUSIVE;
262 data_filename = optarg;
265 open_flags |= EXT2_FLAG_DIRECT_IO;
268 blocksize = parse_ulong(optarg, argv[0],
274 err = strtoblk(argv[0], optarg,
275 "superblock block number", &superblock);
290 if (optind != argc-1) {
293 if (check_fs_not_open(argv[0]))
295 open_filesystem(argv[optind], open_flags,
296 superblock, blocksize, catastrophic,
297 data_filename, undo_file);
301 fprintf(stderr, "%s: Usage: open [-s superblock] [-b blocksize] "
303 "[-d image_filename] [-z undo_file] [-c] [-i] [-f] [-e] [-D] "
305 "[-d image_filename] [-c] [-i] [-f] [-e] [-D] [-w] "
307 "<device>\n", argv[0]);
310 void do_lcd(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
311 void *infop EXT2FS_ATTR((unused)))
314 com_err(argv[0], 0, "Usage: %s %s", argv[0], "<native dir>");
318 if (chdir(argv[1]) == -1) {
319 com_err(argv[0], errno,
320 "while trying to change native directory to %s",
326 static void close_filesystem(NOARGS)
330 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
331 retval = ext2fs_write_inode_bitmap(current_fs);
333 com_err("ext2fs_write_inode_bitmap", retval, 0);
335 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
336 retval = ext2fs_write_block_bitmap(current_fs);
338 com_err("ext2fs_write_block_bitmap", retval, 0);
341 quota_release_context(¤t_qctx);
342 retval = ext2fs_close_free(¤t_fs);
344 com_err("ext2fs_close", retval, 0);
348 void do_close_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
349 void *infop EXT2FS_ATTR((unused)))
353 if (check_fs_open(argv[0]))
357 while ((c = getopt (argc, argv, "a")) != EOF) {
360 current_fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
369 com_err(0, 0, "Usage: close_filesys [-a]");
377 void do_init_filesys(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
378 void *infop EXT2FS_ATTR((unused)))
380 struct ext2_super_block param;
385 if (common_args_process(argc, argv, 3, 3, "initialize",
386 "<device> <blocks>", CHECK_FS_NOTOPEN))
389 memset(¶m, 0, sizeof(struct ext2_super_block));
390 err = strtoblk(argv[0], argv[2], "blocks count", &blocks);
393 ext2fs_blocks_count_set(¶m, blocks);
394 retval = ext2fs_initialize(argv[1], 0, ¶m,
395 unix_io_manager, ¤t_fs);
397 com_err(argv[1], retval, "while initializing filesystem");
401 root = cwd = EXT2_ROOT_INO;
405 static void print_features(struct ext2_super_block * s, FILE *f)
408 __u32 *mask = &s->s_feature_compat, m;
410 fputs("Filesystem features:", f);
411 for (i=0; i <3; i++,mask++) {
412 for (j=0,m=1; j < 32; j++, m<<=1) {
414 fprintf(f, " %s", e2p_feature2string(i, m));
423 #endif /* READ_ONLY */
425 static void print_bg_opts(ext2_filsys fs, dgrp_t group, int mask,
426 const char *str, int *first, FILE *f)
428 if (ext2fs_bg_flags_test(fs, group, mask)) {
438 void do_show_super_stats(int argc, char *argv[],
439 int sci_idx EXT2FS_ATTR((unused)),
440 void *infop EXT2FS_ATTR((unused)))
442 const char *units ="block";
445 int c, header_only = 0;
446 int numdirs = 0, first, gdt_csum;
449 while ((c = getopt (argc, argv, "h")) != EOF) {
458 if (optind != argc) {
461 if (check_fs_open(argv[0]))
465 if (ext2fs_has_feature_bigalloc(current_fs->super))
468 list_super2(current_fs->super, out);
469 if (ext2fs_has_feature_metadata_csum(current_fs->super) &&
470 !ext2fs_superblock_csum_verify(current_fs,
471 current_fs->super)) {
472 __u32 orig_csum = current_fs->super->s_checksum;
474 ext2fs_superblock_csum_set(current_fs,
476 fprintf(out, "Expected Checksum: 0x%08x\n",
477 current_fs->super->s_checksum);
478 current_fs->super->s_checksum = orig_csum;
480 for (i=0; i < current_fs->group_desc_count; i++)
481 numdirs += ext2fs_bg_used_dirs_count(current_fs, i);
482 fprintf(out, "Directories: %u\n", numdirs);
489 gdt_csum = ext2fs_has_group_desc_csum(current_fs);
490 for (i = 0; i < current_fs->group_desc_count; i++) {
491 fprintf(out, " Group %2d: block bitmap at %llu, "
492 "inode bitmap at %llu, "
493 "inode table at %llu\n"
497 i, ext2fs_block_bitmap_loc(current_fs, i),
498 ext2fs_inode_bitmap_loc(current_fs, i),
499 ext2fs_inode_table_loc(current_fs, i),
500 ext2fs_bg_free_blocks_count(current_fs, i), units,
501 ext2fs_bg_free_blocks_count(current_fs, i) != 1 ?
503 ext2fs_bg_free_inodes_count(current_fs, i),
504 ext2fs_bg_free_inodes_count(current_fs, i) != 1 ?
506 ext2fs_bg_used_dirs_count(current_fs, i),
507 ext2fs_bg_used_dirs_count(current_fs, i) != 1 ? "directories"
508 : "directory", gdt_csum ? ", " : "\n");
510 fprintf(out, "%u unused %s\n",
511 ext2fs_bg_itable_unused(current_fs, i),
512 ext2fs_bg_itable_unused(current_fs, i) != 1 ?
515 print_bg_opts(current_fs, i, EXT2_BG_INODE_UNINIT, "Inode not init",
517 print_bg_opts(current_fs, i, EXT2_BG_BLOCK_UNINIT, "Block not init",
520 fprintf(out, "%sChecksum 0x%04x",
521 first ? " [":", ", ext2fs_bg_checksum(current_fs, i));
530 fprintf(stderr, "%s: Usage: show_super_stats [-h]\n", argv[0]);
534 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
535 char **argv EXT2FS_ATTR((unused)),
536 int sci_idx EXT2FS_ATTR((unused)),
537 void *infop EXT2FS_ATTR((unused)))
539 if (check_fs_open(argv[0]))
541 if (check_fs_read_write(argv[0]))
544 if (argv[1] && !strcmp(argv[1], "-clean"))
545 current_fs->super->s_state |= EXT2_VALID_FS;
547 current_fs->super->s_state &= ~EXT2_VALID_FS;
548 ext2fs_mark_super_dirty(current_fs);
550 #endif /* READ_ONLY */
552 struct list_blocks_struct {
555 blk64_t first_block, last_block;
556 e2_blkcnt_t first_bcnt, last_bcnt;
560 static void finish_range(struct list_blocks_struct *lb)
562 if (lb->first_block == 0)
567 fprintf(lb->f, ", ");
568 if (lb->first_block == lb->last_block)
569 fprintf(lb->f, "(%lld):%llu",
570 (long long)lb->first_bcnt, lb->first_block);
572 fprintf(lb->f, "(%lld-%lld):%llu-%llu",
573 (long long)lb->first_bcnt, (long long)lb->last_bcnt,
574 lb->first_block, lb->last_block);
578 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
579 blk64_t *blocknr, e2_blkcnt_t blockcnt,
580 blk64_t ref_block EXT2FS_ATTR((unused)),
581 int ref_offset EXT2FS_ATTR((unused)),
584 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
589 * See if we can add on to the existing range (if it exists)
591 if (lb->first_block &&
592 (lb->last_block+1 == *blocknr) &&
593 (lb->last_bcnt+1 == blockcnt)) {
594 lb->last_block = *blocknr;
595 lb->last_bcnt = blockcnt;
602 lb->first_block = lb->last_block = *blocknr;
603 lb->first_bcnt = lb->last_bcnt = blockcnt;
607 * Not a normal block. Always force a new range.
613 fprintf(lb->f, ", ");
615 fprintf(lb->f, "(IND):%llu", (unsigned long long) *blocknr);
616 else if (blockcnt == -2)
617 fprintf(lb->f, "(DIND):%llu", (unsigned long long) *blocknr);
618 else if (blockcnt == -3)
619 fprintf(lb->f, "(TIND):%llu", (unsigned long long) *blocknr);
623 static void internal_dump_inode_extra(FILE *out,
624 const char *prefix EXT2FS_ATTR((unused)),
625 ext2_ino_t inode_num EXT2FS_ATTR((unused)),
626 struct ext2_inode_large *inode)
628 fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
629 if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
630 EXT2_GOOD_OLD_INODE_SIZE) {
631 fprintf(stderr, "invalid inode->i_extra_isize (%u)\n",
632 inode->i_extra_isize);
637 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
639 struct list_blocks_struct lb;
641 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
646 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
647 list_blocks_proc, (void *)&lb);
650 fprintf(f, "\n%sTOTAL: %lld\n", prefix, (long long)lb.total);
654 static int int_log10(unsigned long long arg)
666 #define DUMP_LEAF_EXTENTS 0x01
667 #define DUMP_NODE_EXTENTS 0x02
668 #define DUMP_EXTENT_TABLE 0x04
670 static void dump_extents(FILE *f, const char *prefix, ext2_ino_t ino,
671 int flags, int logical_width, int physical_width)
673 ext2_extent_handle_t handle;
674 struct ext2fs_extent extent;
675 struct ext2_extent_info info;
676 int op = EXT2_EXTENT_ROOT;
677 unsigned int printed = 0;
680 errcode = ext2fs_extent_open(current_fs, ino, &handle);
684 if (flags & DUMP_EXTENT_TABLE)
685 fprintf(f, "Level Entries %*s %*s Length Flags\n",
686 (logical_width*2)+3, "Logical",
687 (physical_width*2)+3, "Physical");
689 fprintf(f, "%sEXTENTS:\n%s", prefix, prefix);
692 errcode = ext2fs_extent_get(handle, op, &extent);
697 op = EXT2_EXTENT_NEXT;
699 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
702 if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
703 if ((flags & DUMP_LEAF_EXTENTS) == 0)
706 if ((flags & DUMP_NODE_EXTENTS) == 0)
710 errcode = ext2fs_extent_get_info(handle, &info);
714 if (!(extent.e_flags & EXT2_EXTENT_FLAGS_LEAF)) {
715 if (extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)
718 if (flags & DUMP_EXTENT_TABLE) {
719 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
721 info.curr_level, info.max_depth,
722 info.curr_entry, info.num_entries,
726 extent.e_lblk + (extent.e_len - 1),
729 physical_width+3, "", extent.e_len);
733 fprintf(f, "%s(ETB%d):%llu",
734 printed ? ", " : "", info.curr_level,
740 if (flags & DUMP_EXTENT_TABLE) {
741 fprintf(f, "%2d/%2d %3d/%3d %*llu - %*llu "
742 "%*llu - %*llu %6u %s\n",
743 info.curr_level, info.max_depth,
744 info.curr_entry, info.num_entries,
748 extent.e_lblk + (extent.e_len - 1),
752 extent.e_pblk + (extent.e_len - 1),
754 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
759 if (extent.e_len == 0)
761 else if (extent.e_len == 1)
766 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
771 "%s(%lld-%lld%s):%lld-%lld",
774 extent.e_lblk + (extent.e_len - 1),
775 extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT ?
778 extent.e_pblk + (extent.e_len - 1));
783 ext2fs_extent_free(handle);
786 static void dump_inline_data(FILE *out, const char *prefix, ext2_ino_t inode_num)
791 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
793 fprintf(out, "%sSize of inline data: %zu\n", prefix, size);
796 static void dump_inline_symlink(FILE *out, ext2_ino_t inode_num,
797 struct ext2_inode *inode, const char *prefix)
803 retval = ext2fs_inline_data_size(current_fs, inode_num, &size);
807 retval = ext2fs_get_memzero(size + 1, &buf);
811 retval = ext2fs_inline_data_get(current_fs, inode_num,
816 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
820 ext2fs_free_mem(&buf);
822 com_err(__func__, retval, "while dumping link destination");
825 void internal_dump_inode(FILE *out, const char *prefix,
826 ext2_ino_t inode_num, struct ext2_inode *inode,
831 int os = current_fs->super->s_creator_os;
832 struct ext2_inode_large *large_inode;
833 int is_large_inode = 0;
835 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
837 large_inode = (struct ext2_inode_large *) inode;
839 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
840 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
841 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
842 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
843 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
844 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
845 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
846 else i_type = "bad type";
847 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
848 fprintf(out, "%sMode: 0%03o Flags: 0x%x\n",
849 prefix, inode->i_mode & 07777, inode->i_flags);
850 if (is_large_inode && large_inode->i_extra_isize >= 24) {
851 fprintf(out, "%sGeneration: %u Version: 0x%08x:%08x\n",
852 prefix, inode->i_generation, large_inode->i_version_hi,
853 inode->osd1.linux1.l_i_version);
855 fprintf(out, "%sGeneration: %u Version: 0x%08x\n", prefix,
856 inode->i_generation, inode->osd1.linux1.l_i_version);
858 fprintf(out, "%sUser: %5d Group: %5d",
859 prefix, inode_uid(*inode), inode_gid(*inode));
860 if (is_large_inode && large_inode->i_extra_isize >= 32)
861 fprintf(out, " Project: %5d", large_inode->i_projid);
862 fputs(" Size: ", out);
863 if (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode))
864 fprintf(out, "%llu\n", EXT2_I_SIZE(inode));
866 fprintf(out, "%u\n", inode->i_size);
867 if (os == EXT2_OS_HURD)
869 "%sFile ACL: %u Translator: %u\n",
872 inode->osd1.hurd1.h_i_translator);
874 fprintf(out, "%sFile ACL: %llu\n",
876 inode->i_file_acl | ((long long)
877 (inode->osd2.linux2.l_i_file_acl_high) << 32));
878 if (os != EXT2_OS_HURD)
879 fprintf(out, "%sLinks: %u Blockcount: %llu\n",
880 prefix, inode->i_links_count,
881 (((unsigned long long)
882 inode->osd2.linux2.l_i_blocks_hi << 32)) +
885 fprintf(out, "%sLinks: %u Blockcount: %u\n",
886 prefix, inode->i_links_count, inode->i_blocks);
889 frag = inode->osd2.hurd2.h_i_frag;
890 fsize = inode->osd2.hurd2.h_i_fsize;
895 fprintf(out, "%sFragment: Address: %u Number: %u Size: %u\n",
896 prefix, inode->i_faddr, frag, fsize);
897 if (is_large_inode && large_inode->i_extra_isize >= 24) {
898 fprintf(out, "%s ctime: 0x%08x:%08x -- %s", prefix,
899 inode->i_ctime, large_inode->i_ctime_extra,
900 inode_time_to_string(inode->i_ctime,
901 large_inode->i_ctime_extra));
902 fprintf(out, "%s atime: 0x%08x:%08x -- %s", prefix,
903 inode->i_atime, large_inode->i_atime_extra,
904 inode_time_to_string(inode->i_atime,
905 large_inode->i_atime_extra));
906 fprintf(out, "%s mtime: 0x%08x:%08x -- %s", prefix,
907 inode->i_mtime, large_inode->i_mtime_extra,
908 inode_time_to_string(inode->i_mtime,
909 large_inode->i_mtime_extra));
910 fprintf(out, "%scrtime: 0x%08x:%08x -- %s", prefix,
911 large_inode->i_crtime, large_inode->i_crtime_extra,
912 inode_time_to_string(large_inode->i_crtime,
913 large_inode->i_crtime_extra));
915 fprintf(out, "%s dtime: 0x%08x:(%08x) -- %s", prefix,
916 large_inode->i_dtime, large_inode->i_ctime_extra,
917 inode_time_to_string(inode->i_dtime,
918 large_inode->i_ctime_extra));
920 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
921 time_to_string((__s32) inode->i_ctime));
922 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
923 time_to_string((__s32) inode->i_atime));
924 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
925 time_to_string((__s32) inode->i_mtime));
927 fprintf(out, "%sdtime: 0x%08x -- %s", prefix,
929 time_to_string((__s32) inode->i_dtime));
931 if (EXT2_INODE_SIZE(current_fs->super) > EXT2_GOOD_OLD_INODE_SIZE)
932 internal_dump_inode_extra(out, prefix, inode_num,
933 (struct ext2_inode_large *) inode);
934 dump_inode_attributes(out, inode_num);
935 if (ext2fs_has_feature_metadata_csum(current_fs->super)) {
936 __u32 crc = inode->i_checksum_lo;
937 if (is_large_inode &&
938 large_inode->i_extra_isize >=
939 (offsetof(struct ext2_inode_large,
941 EXT2_GOOD_OLD_INODE_SIZE))
942 crc |= ((__u32)large_inode->i_checksum_hi) << 16;
943 fprintf(out, "Inode checksum: 0x%08x\n", crc);
946 if (LINUX_S_ISLNK(inode->i_mode) && ext2fs_is_fast_symlink(inode))
947 fprintf(out, "%sFast link dest: \"%.*s\"\n", prefix,
948 (int)EXT2_I_SIZE(inode), (char *)inode->i_block);
949 else if (LINUX_S_ISLNK(inode->i_mode) &&
950 (inode->i_flags & EXT4_INLINE_DATA_FL))
951 dump_inline_symlink(out, inode_num, inode, prefix);
952 else if (LINUX_S_ISBLK(inode->i_mode) || LINUX_S_ISCHR(inode->i_mode)) {
956 if (inode->i_block[0]) {
957 major = (inode->i_block[0] >> 8) & 255;
958 minor = inode->i_block[0] & 255;
961 major = (inode->i_block[1] & 0xfff00) >> 8;
962 minor = ((inode->i_block[1] & 0xff) |
963 ((inode->i_block[1] >> 12) & 0xfff00));
964 devnote = "(New-style) ";
966 fprintf(out, "%sDevice major/minor number: %02d:%02d (hex %02x:%02x)\n",
967 devnote, major, minor, major, minor);
968 } else if (do_dump_blocks) {
969 if (inode->i_flags & EXT4_EXTENTS_FL)
970 dump_extents(out, prefix, inode_num,
971 DUMP_LEAF_EXTENTS|DUMP_NODE_EXTENTS, 0, 0);
972 else if (inode->i_flags & EXT4_INLINE_DATA_FL)
973 dump_inline_data(out, prefix, inode_num);
975 dump_blocks(out, prefix, inode_num);
979 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode *inode)
984 internal_dump_inode(out, "", inode_num, inode, 1);
988 void do_stat(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
989 void *infop EXT2FS_ATTR((unused)))
992 struct ext2_inode * inode_buf;
994 if (check_fs_open(argv[0]))
997 inode_buf = (struct ext2_inode *)
998 malloc(EXT2_INODE_SIZE(current_fs->super));
1000 fprintf(stderr, "do_stat: can't allocate buffer\n");
1004 if (common_inode_args_process(argc, argv, &inode, 0)) {
1009 if (debugfs_read_inode2(inode, inode_buf, argv[0],
1010 EXT2_INODE_SIZE(current_fs->super), 0)) {
1015 dump_inode(inode, inode_buf);
1020 void do_dump_extents(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
1021 void *infop EXT2FS_ATTR((unused)))
1023 struct ext2_inode inode;
1031 while ((c = getopt(argc, argv, "nl")) != EOF) {
1034 flags |= DUMP_NODE_EXTENTS;
1037 flags |= DUMP_LEAF_EXTENTS;
1042 if (argc != optind + 1) {
1043 com_err(0, 0, "Usage: dump_extents [-n] [-l] file");
1048 flags = DUMP_NODE_EXTENTS | DUMP_LEAF_EXTENTS;
1049 flags |= DUMP_EXTENT_TABLE;
1051 if (check_fs_open(argv[0]))
1054 ino = string_to_inode(argv[optind]);
1058 if (debugfs_read_inode(ino, &inode, argv[0]))
1061 if ((inode.i_flags & EXT4_EXTENTS_FL) == 0) {
1062 fprintf(stderr, "%s: does not uses extent block maps\n",
1067 logical_width = int_log10((EXT2_I_SIZE(&inode)+current_fs->blocksize-1)/
1068 current_fs->blocksize) + 1;
1069 if (logical_width < 5)
1071 physical_width = int_log10(ext2fs_blocks_count(current_fs->super)) + 1;
1072 if (physical_width < 5)
1076 dump_extents(out, "", ino, flags, logical_width, physical_width);
1081 static int print_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
1083 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1084 blk64_t ref_block EXT2FS_ATTR((unused)),
1085 int ref_offset EXT2FS_ATTR((unused)),
1086 void *private EXT2FS_ATTR((unused)))
1088 printf("%llu ", *blocknr);
1092 void do_blocks(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1093 void *infop EXT2FS_ATTR((unused)))
1097 if (check_fs_open(argv[0]))
1100 if (common_inode_args_process(argc, argv, &inode, 0)) {
1104 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY, NULL,
1105 print_blocks_proc, NULL);
1106 fputc('\n', stdout);
1110 void do_chroot(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1111 void *infop EXT2FS_ATTR((unused)))
1116 if (common_inode_args_process(argc, argv, &inode, 0))
1119 retval = ext2fs_check_directory(current_fs, inode);
1121 com_err(argv[1], retval, 0);
1128 void do_clri(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1129 void *infop EXT2FS_ATTR((unused)))
1132 struct ext2_inode inode_buf;
1134 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1137 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
1139 memset(&inode_buf, 0, sizeof(inode_buf));
1140 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
1144 void do_freei(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1145 void *infop EXT2FS_ATTR((unused)))
1147 unsigned int len = 1;
1151 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1152 CHECK_FS_RW | CHECK_FS_BITMAPS))
1154 if (check_fs_read_write(argv[0]))
1157 inode = string_to_inode(argv[1]);
1162 len = parse_ulong(argv[2], argv[0], "length", &err);
1168 !ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1169 com_err(argv[0], 0, "Warning: inode already clear");
1171 ext2fs_unmark_inode_bitmap2(current_fs->inode_map, inode++);
1172 ext2fs_mark_ib_dirty(current_fs);
1175 void do_seti(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1176 void *infop EXT2FS_ATTR((unused)))
1178 unsigned int len = 1;
1182 if (common_args_process(argc, argv, 2, 3, argv[0], "<file> [num]",
1183 CHECK_FS_RW | CHECK_FS_BITMAPS))
1185 if (check_fs_read_write(argv[0]))
1188 inode = string_to_inode(argv[1]);
1193 len = parse_ulong(argv[2], argv[0], "length", &err);
1199 ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1200 com_err(argv[0], 0, "Warning: inode already set");
1202 ext2fs_mark_inode_bitmap2(current_fs->inode_map, inode++);
1203 ext2fs_mark_ib_dirty(current_fs);
1205 #endif /* READ_ONLY */
1207 void do_testi(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1208 void *infop EXT2FS_ATTR((unused)))
1212 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
1215 if (ext2fs_test_inode_bitmap2(current_fs->inode_map,inode))
1216 printf("Inode %u is marked in use\n", inode);
1218 printf("Inode %u is not in use\n", inode);
1222 void do_freeb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1223 void *infop EXT2FS_ATTR((unused)))
1228 if (common_block_args_process(argc, argv, &block, &count))
1230 if (check_fs_read_write(argv[0]))
1232 while (count-- > 0) {
1233 if (!ext2fs_test_block_bitmap2(current_fs->block_map,block))
1234 com_err(argv[0], 0, "Warning: block %llu already clear",
1236 ext2fs_unmark_block_bitmap2(current_fs->block_map,block);
1239 ext2fs_mark_bb_dirty(current_fs);
1242 void do_setb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1243 void *infop EXT2FS_ATTR((unused)))
1248 if (common_block_args_process(argc, argv, &block, &count))
1250 if (check_fs_read_write(argv[0]))
1252 while (count-- > 0) {
1253 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1254 com_err(argv[0], 0, "Warning: block %llu already set",
1256 ext2fs_mark_block_bitmap2(current_fs->block_map,block);
1259 ext2fs_mark_bb_dirty(current_fs);
1261 #endif /* READ_ONLY */
1263 void do_testb(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1264 void *infop EXT2FS_ATTR((unused)))
1269 if (common_block_args_process(argc, argv, &block, &count))
1271 while (count-- > 0) {
1272 if (ext2fs_test_block_bitmap2(current_fs->block_map,block))
1273 printf("Block %llu marked in use\n", block);
1275 printf("Block %llu not in use\n", block);
1281 static void modify_u8(char *com, const char *prompt,
1282 const char *format, __u8 *val)
1288 sprintf(buf, format, *val);
1289 printf("%30s [%s] ", prompt, buf);
1290 if (!fgets(buf, sizeof(buf), stdin))
1292 if (buf[strlen (buf) - 1] == '\n')
1293 buf[strlen (buf) - 1] = '\0';
1296 v = strtoul(buf, &tmp, 0);
1298 com_err(com, 0, "Bad value - %s", buf);
1303 static void modify_u16(char *com, const char *prompt,
1304 const char *format, __u16 *val)
1310 sprintf(buf, format, *val);
1311 printf("%30s [%s] ", prompt, buf);
1312 if (!fgets(buf, sizeof(buf), stdin))
1314 if (buf[strlen (buf) - 1] == '\n')
1315 buf[strlen (buf) - 1] = '\0';
1318 v = strtoul(buf, &tmp, 0);
1320 com_err(com, 0, "Bad value - %s", buf);
1325 static void modify_u32(char *com, const char *prompt,
1326 const char *format, __u32 *val)
1332 sprintf(buf, format, *val);
1333 printf("%30s [%s] ", prompt, buf);
1334 if (!fgets(buf, sizeof(buf), stdin))
1336 if (buf[strlen (buf) - 1] == '\n')
1337 buf[strlen (buf) - 1] = '\0';
1340 v = strtoul(buf, &tmp, 0);
1342 com_err(com, 0, "Bad value - %s", buf);
1348 void do_modify_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1349 void *infop EXT2FS_ATTR((unused)))
1351 struct ext2_inode inode;
1352 ext2_ino_t inode_num;
1354 unsigned char *frag, *fsize;
1357 const char *hex_format = "0x%x";
1358 const char *octal_format = "0%o";
1359 const char *decimal_format = "%d";
1360 const char *unsignedlong_format = "%lu";
1362 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1365 os = current_fs->super->s_creator_os;
1367 if (debugfs_read_inode(inode_num, &inode, argv[1]))
1370 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
1371 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
1372 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
1373 modify_u32(argv[0], "Size", unsignedlong_format, &inode.i_size);
1374 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
1375 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
1376 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
1377 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
1378 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
1379 if (os == EXT2_OS_LINUX)
1380 modify_u16(argv[0], "Block count high", unsignedlong_format,
1381 &inode.osd2.linux2.l_i_blocks_hi);
1382 modify_u32(argv[0], "Block count", unsignedlong_format, &inode.i_blocks);
1383 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
1384 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
1386 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
1388 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
1390 modify_u32(argv[0], "High 32bits of size", decimal_format,
1391 &inode.i_size_high);
1393 if (os == EXT2_OS_HURD)
1394 modify_u32(argv[0], "Translator Block",
1395 decimal_format, &inode.osd1.hurd1.h_i_translator);
1397 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
1400 frag = &inode.osd2.hurd2.h_i_frag;
1401 fsize = &inode.osd2.hurd2.h_i_fsize;
1407 modify_u8(argv[0], "Fragment number", decimal_format, frag);
1409 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
1411 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
1412 sprintf(buf, "Direct Block #%u", i);
1413 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
1415 modify_u32(argv[0], "Indirect Block", decimal_format,
1416 &inode.i_block[EXT2_IND_BLOCK]);
1417 modify_u32(argv[0], "Double Indirect Block", decimal_format,
1418 &inode.i_block[EXT2_DIND_BLOCK]);
1419 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
1420 &inode.i_block[EXT2_TIND_BLOCK]);
1421 if (debugfs_write_inode(inode_num, &inode, argv[1]))
1424 #endif /* READ_ONLY */
1426 void do_change_working_dir(int argc, char *argv[],
1427 int sci_idx EXT2FS_ATTR((unused)),
1428 void *infop EXT2FS_ATTR((unused)))
1433 if (common_inode_args_process(argc, argv, &inode, 0))
1436 retval = ext2fs_check_directory(current_fs, inode);
1438 com_err(argv[1], retval, 0);
1445 void do_print_working_directory(int argc, char *argv[],
1446 int sci_idx EXT2FS_ATTR((unused)),
1447 void *infop EXT2FS_ATTR((unused)))
1450 char *pathname = NULL;
1452 if (common_args_process(argc, argv, 1, 1,
1453 "print_working_directory", "", 0))
1456 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
1458 com_err(argv[0], retval,
1459 "while trying to get pathname of cwd");
1461 printf("[pwd] INODE: %6u PATH: %s\n",
1462 cwd, pathname ? pathname : "NULL");
1467 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
1469 com_err(argv[0], retval,
1470 "while trying to get pathname of root");
1472 printf("[root] INODE: %6u PATH: %s\n",
1473 root, pathname ? pathname : "NULL");
1482 static void make_link(char *sourcename, char *destname)
1485 struct ext2_inode inode;
1488 char *dest, *cp, *base_name;
1491 * Get the source inode
1493 ino = string_to_inode(sourcename);
1496 base_name = strrchr(sourcename, '/');
1500 base_name = sourcename;
1502 * Figure out the destination. First see if it exists and is
1505 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
1509 * OK, it doesn't exist. See if it is
1510 * '<dir>/basename' or 'basename'
1512 cp = strrchr(destname, '/');
1515 dir = string_to_inode(destname);
1525 if (debugfs_read_inode(ino, &inode, sourcename))
1528 retval = ext2fs_link(current_fs, dir, dest, ino,
1529 ext2_file_type(inode.i_mode));
1531 com_err("make_link", retval, 0);
1536 void do_link(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1537 void *infop EXT2FS_ATTR((unused)))
1539 if (common_args_process(argc, argv, 3, 3, "link",
1540 "<source file> <dest_name>", CHECK_FS_RW))
1543 make_link(argv[1], argv[2]);
1546 static int mark_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1547 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1548 blk64_t ref_block EXT2FS_ATTR((unused)),
1549 int ref_offset EXT2FS_ATTR((unused)),
1550 void *private EXT2FS_ATTR((unused)))
1555 ext2fs_block_alloc_stats2(fs, block, +1);
1559 void do_undel(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1560 void *infop EXT2FS_ATTR((unused)))
1563 struct ext2_inode inode;
1565 if (common_args_process(argc, argv, 2, 3, "undelete",
1566 "<inode_num> [dest_name]",
1567 CHECK_FS_RW | CHECK_FS_BITMAPS))
1570 ino = string_to_inode(argv[1]);
1574 if (debugfs_read_inode(ino, &inode, argv[1]))
1577 if (ext2fs_test_inode_bitmap2(current_fs->inode_map, ino)) {
1578 com_err(argv[1], 0, "Inode is not marked as deleted");
1583 * XXX this function doesn't handle changing the links count on the
1584 * parent directory when undeleting a directory.
1586 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
1589 if (debugfs_write_inode(ino, &inode, argv[0]))
1592 ext2fs_block_iterate3(current_fs, ino, BLOCK_FLAG_READ_ONLY, NULL,
1593 mark_blocks_proc, NULL);
1595 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
1598 make_link(argv[1], argv[2]);
1601 static void unlink_file_by_name(char *filename)
1607 base_name = strrchr(filename, '/');
1609 *base_name++ = '\0';
1610 dir = string_to_inode(filename);
1615 base_name = filename;
1617 retval = ext2fs_unlink(current_fs, dir, base_name, 0, 0);
1619 com_err("unlink_file_by_name", retval, 0);
1623 void do_unlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1624 void *infop EXT2FS_ATTR((unused)))
1626 if (common_args_process(argc, argv, 2, 2, "link",
1627 "<pathname>", CHECK_FS_RW))
1630 unlink_file_by_name(argv[1]);
1633 void do_copy_inode(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1634 void *infop EXT2FS_ATTR((unused)))
1636 ext2_ino_t src_ino, dest_ino;
1637 unsigned char buf[4096];
1639 if (common_args_process(argc, argv, 3, 3, "copy_inode",
1640 "<source file> <dest_name>", CHECK_FS_RW))
1643 src_ino = string_to_inode(argv[1]);
1647 dest_ino = string_to_inode(argv[2]);
1651 if (debugfs_read_inode2(src_ino, (struct ext2_inode *) buf,
1652 argv[0], sizeof(buf), 0))
1655 if (debugfs_write_inode2(dest_ino, (struct ext2_inode *) buf,
1656 argv[0], sizeof(buf), 0))
1660 #endif /* READ_ONLY */
1662 void do_find_free_block(int argc, char *argv[],
1663 int sci_idx EXT2FS_ATTR((unused)),
1664 void *infop EXT2FS_ATTR((unused)))
1666 blk64_t free_blk, goal, first_free = 0;
1671 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
1672 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
1675 if (check_fs_open(argv[0]))
1679 count = strtol(argv[1],&tmp,0);
1681 com_err(argv[0], 0, "Bad count - %s", argv[1]);
1688 goal = strtol(argv[2], &tmp, 0);
1690 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1695 goal = current_fs->super->s_first_data_block;
1697 printf("Free blocks found: ");
1698 free_blk = goal - 1;
1699 while (count-- > 0) {
1700 retval = ext2fs_new_block2(current_fs, free_blk + 1, 0,
1703 if (first_free == free_blk)
1706 first_free = free_blk;
1708 com_err("ext2fs_new_block", retval, 0);
1711 printf("%llu ", free_blk);
1716 void do_find_free_inode(int argc, char *argv[],
1717 int sci_idx EXT2FS_ATTR((unused)),
1718 void *infop EXT2FS_ATTR((unused)))
1720 ext2_ino_t free_inode, dir;
1725 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1726 com_err(argv[0], 0, "Usage: find_free_inode [dir [mode]]");
1729 if (check_fs_open(argv[0]))
1733 dir = strtol(argv[1], &tmp, 0);
1735 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1742 mode = strtol(argv[2], &tmp, 0);
1744 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1750 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1752 com_err("ext2fs_new_inode", retval, 0);
1754 printf("Free inode found: %u\n", free_inode);
1758 void do_write(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1759 void *infop EXT2FS_ATTR((unused)))
1763 if (common_args_process(argc, argv, 3, 3, "write",
1764 "<native file> <new file>", CHECK_FS_RW))
1767 retval = do_write_internal(current_fs, cwd, argv[1], argv[2], root);
1769 com_err(argv[0], retval, 0);
1772 void do_mknod(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1773 void *infop EXT2FS_ATTR((unused)))
1775 unsigned long major, minor;
1780 if (check_fs_open(argv[0]))
1782 if (argc < 3 || argv[2][1]) {
1784 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1789 switch (argv[2][0]) {
1791 st.st_mode = S_IFIFO;
1795 st.st_mode = S_IFCHR;
1799 st.st_mode = S_IFBLK;
1807 major = strtoul(argv[3], argv+3, 0);
1808 minor = strtoul(argv[4], argv+4, 0);
1809 if (major > 65535 || minor > 65535 || argv[3][0] || argv[4][0])
1816 st.st_rdev = makedev(major, minor);
1817 retval = do_mknod_internal(current_fs, cwd, argv[1],
1818 st.st_mode, st.st_rdev);
1820 com_err(argv[0], retval, 0);
1823 void do_mkdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1824 void *infop EXT2FS_ATTR((unused)))
1828 if (common_args_process(argc, argv, 2, 2, "mkdir",
1829 "<filename>", CHECK_FS_RW))
1832 retval = do_mkdir_internal(current_fs, cwd, argv[1], root);
1834 com_err(argv[0], retval, 0);
1838 static int release_blocks_proc(ext2_filsys fs, blk64_t *blocknr,
1839 e2_blkcnt_t blockcnt EXT2FS_ATTR((unused)),
1840 blk64_t ref_block EXT2FS_ATTR((unused)),
1841 int ref_offset EXT2FS_ATTR((unused)),
1844 blk64_t block = *blocknr;
1845 blk64_t *last_cluster = (blk64_t *)private;
1846 blk64_t cluster = EXT2FS_B2C(fs, block);
1848 if (cluster == *last_cluster)
1851 *last_cluster = cluster;
1853 ext2fs_block_alloc_stats2(fs, block, -1);
1857 static void kill_file_by_inode(ext2_ino_t inode)
1859 struct ext2_inode inode_buf;
1861 if (debugfs_read_inode(inode, &inode_buf, 0))
1863 inode_buf.i_dtime = current_fs->now ? current_fs->now : time(0);
1864 if (debugfs_write_inode(inode, &inode_buf, 0))
1866 if (ext2fs_inode_has_valid_blocks2(current_fs, &inode_buf)) {
1867 blk64_t last_cluster = 0;
1868 ext2fs_block_iterate3(current_fs, inode, BLOCK_FLAG_READ_ONLY,
1869 NULL, release_blocks_proc, &last_cluster);
1872 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1873 LINUX_S_ISDIR(inode_buf.i_mode));
1877 void do_kill_file(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1878 void *infop EXT2FS_ATTR((unused)))
1880 ext2_ino_t inode_num;
1882 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1885 kill_file_by_inode(inode_num);
1888 void do_rm(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1889 void *infop EXT2FS_ATTR((unused)))
1892 ext2_ino_t inode_num;
1893 struct ext2_inode inode;
1895 if (common_args_process(argc, argv, 2, 2, "rm",
1896 "<filename>", CHECK_FS_RW))
1899 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1901 com_err(argv[0], retval, "while trying to resolve filename");
1905 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1908 if (LINUX_S_ISDIR(inode.i_mode)) {
1909 com_err(argv[0], 0, "file is a directory");
1913 --inode.i_links_count;
1914 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1917 unlink_file_by_name(argv[1]);
1918 if (inode.i_links_count == 0)
1919 kill_file_by_inode(inode_num);
1927 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1928 int entry EXT2FS_ATTR((unused)),
1929 struct ext2_dir_entry *dirent,
1930 int offset EXT2FS_ATTR((unused)),
1931 int blocksize EXT2FS_ATTR((unused)),
1932 char *buf EXT2FS_ATTR((unused)),
1935 struct rd_struct *rds = (struct rd_struct *) private;
1937 if (dirent->inode == 0)
1939 if ((ext2fs_dirent_name_len(dirent) == 1) && (dirent->name[0] == '.'))
1941 if ((ext2fs_dirent_name_len(dirent) == 2) && (dirent->name[0] == '.') &&
1942 (dirent->name[1] == '.')) {
1943 rds->parent = dirent->inode;
1950 void do_rmdir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
1951 void *infop EXT2FS_ATTR((unused)))
1954 ext2_ino_t inode_num;
1955 struct ext2_inode inode;
1956 struct rd_struct rds;
1958 if (common_args_process(argc, argv, 2, 2, "rmdir",
1959 "<filename>", CHECK_FS_RW))
1962 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1964 com_err(argv[0], retval, "while trying to resolve filename");
1968 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1971 if (!LINUX_S_ISDIR(inode.i_mode)) {
1972 com_err(argv[0], 0, "file is not a directory");
1979 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1980 0, rmdir_proc, &rds);
1982 com_err(argv[0], retval, "while iterating over directory");
1985 if (rds.empty == 0) {
1986 com_err(argv[0], 0, "directory not empty");
1990 inode.i_links_count = 0;
1991 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1994 unlink_file_by_name(argv[1]);
1995 kill_file_by_inode(inode_num);
1998 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
2000 if (inode.i_links_count > 1)
2001 inode.i_links_count--;
2002 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
2006 #endif /* READ_ONLY */
2008 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
2009 char *argv[] EXT2FS_ATTR((unused)),
2010 int sci_idx EXT2FS_ATTR((unused)),
2011 void *infop EXT2FS_ATTR((unused)))
2014 printf("Open mode: read-%s\n",
2015 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
2016 printf("Filesystem in use: %s\n",
2017 current_fs ? current_fs->device_name : "--none--");
2021 void do_expand_dir(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2022 void *infop EXT2FS_ATTR((unused)))
2027 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
2030 retval = ext2fs_expand_dir(current_fs, inode);
2032 com_err("ext2fs_expand_dir", retval, 0);
2036 void do_features(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2037 void *infop EXT2FS_ATTR((unused)))
2041 if (check_fs_open(argv[0]))
2044 if ((argc != 1) && check_fs_read_write(argv[0]))
2046 for (i=1; i < argc; i++) {
2047 if (e2p_edit_feature(argv[i],
2048 ¤t_fs->super->s_feature_compat, 0))
2049 com_err(argv[0], 0, "Unknown feature: %s\n",
2052 ext2fs_mark_super_dirty(current_fs);
2054 print_features(current_fs->super, stdout);
2056 #endif /* READ_ONLY */
2058 void do_bmap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2059 void *infop EXT2FS_ATTR((unused)))
2062 blk64_t blk, pblk = 0;
2063 int c, err, flags = 0, ret_flags = 0;
2066 if (check_fs_open(argv[0]))
2070 while ((c = getopt (argc, argv, "a")) != EOF) {
2073 flags |= BMAP_ALLOC;
2080 if (argc <= optind+1) {
2083 "Usage: bmap [-a] <file> logical_blk [physical_blk]");
2087 ino = string_to_inode(argv[optind++]);
2090 err = strtoblk(argv[0], argv[optind++], "logical block", &blk);
2094 if (argc > optind+1)
2097 if (argc == optind+1) {
2098 err = strtoblk(argv[0], argv[optind++],
2099 "physical block", &pblk);
2102 if (flags & BMAP_ALLOC) {
2103 com_err(0, 0, "Can't set and allocate a block");
2109 errcode = ext2fs_bmap2(current_fs, ino, 0, 0, flags, blk,
2112 com_err(argv[0], errcode,
2113 "while mapping logical block %llu\n", blk);
2116 printf("%llu", pblk);
2117 if (ret_flags & BMAP_RET_UNINIT)
2118 fputs(" (uninit)", stdout);
2119 fputc('\n', stdout);
2122 void do_imap(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2123 void *infop EXT2FS_ATTR((unused)))
2126 unsigned long group, block, block_nr, offset;
2128 if (common_args_process(argc, argv, 2, 2, argv[0],
2131 ino = string_to_inode(argv[1]);
2135 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
2136 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
2137 EXT2_INODE_SIZE(current_fs->super);
2138 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
2139 if (!ext2fs_inode_table_loc(current_fs, (unsigned)group)) {
2140 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
2144 block_nr = ext2fs_inode_table_loc(current_fs, (unsigned)group) +
2146 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
2148 printf("Inode %u is part of block group %lu\n"
2149 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
2154 void do_idump(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2155 void *infop EXT2FS_ATTR((unused)))
2157 struct ext2_inode_large *inode;
2161 unsigned int isize, size, offset = 0;
2165 while ((c = getopt (argc, argv, "bex")) != EOF) {
2166 if (mode || c == '?') {
2168 "Usage: inode_dump [-b]|[-e] <file>");
2173 if (optind != argc-1)
2176 if (check_fs_open(argv[0]))
2179 ino = string_to_inode(argv[optind]);
2183 isize = EXT2_INODE_SIZE(current_fs->super);
2184 err = ext2fs_get_mem(isize, &buf);
2186 com_err(argv[0], err, "while allocating memory");
2190 err = ext2fs_read_inode_full(current_fs, ino,
2191 (struct ext2_inode *)buf, isize);
2193 com_err(argv[0], err, "while reading inode %u", ino);
2197 inode = (struct ext2_inode_large *) buf;
2201 offset = ((char *) (&inode->i_block)) - ((char *) buf);
2202 size = sizeof(inode->i_block);
2206 if (size <= EXT2_GOOD_OLD_INODE_SIZE) {
2207 com_err(argv[0], 0, "No extra space in inode");
2210 offset = EXT2_GOOD_OLD_INODE_SIZE + inode->i_extra_isize;
2217 raw_inode_xattr_dump(stdout, buf + offset, size);
2219 do_byte_hexdump(stdout, buf + offset, size);
2221 ext2fs_free_mem(&buf);
2225 void do_set_current_time(int argc, char *argv[],
2226 int sci_idx EXT2FS_ATTR((unused)),
2227 void *infop EXT2FS_ATTR((unused)))
2231 if (common_args_process(argc, argv, 2, 2, argv[0],
2235 now = string_to_time(argv[1]);
2237 com_err(argv[0], 0, "Couldn't parse argument as a time: %s\n",
2242 printf("Setting current time to %s\n", time_to_string(now));
2243 current_fs->now = now;
2246 #endif /* READ_ONLY */
2248 static int find_supp_feature(__u32 *supp, int feature_type, char *name)
2250 int compat, bit, ret;
2251 unsigned int feature_mask;
2254 if (feature_type == E2P_FS_FEATURE)
2255 ret = e2p_string2feature(name, &compat, &feature_mask);
2257 ret = e2p_jrnl_string2feature(name, &compat,
2262 if (!(supp[compat] & feature_mask))
2265 for (compat = 0; compat < 3; compat++) {
2266 for (bit = 0, feature_mask = 1; bit < 32;
2267 bit++, feature_mask <<= 1) {
2268 if (supp[compat] & feature_mask) {
2269 if (feature_type == E2P_FS_FEATURE)
2270 fprintf(stdout, " %s",
2271 e2p_feature2string(compat,
2274 fprintf(stdout, " %s",
2275 e2p_jrnl_feature2string(compat,
2280 fprintf(stdout, "\n");
2286 void do_supported_features(int argc, char *argv[],
2287 int sci_idx EXT2FS_ATTR((unused)),
2288 void *infop EXT2FS_ATTR((unused)))
2291 __u32 supp[3] = { EXT2_LIB_FEATURE_COMPAT_SUPP,
2292 EXT2_LIB_FEATURE_INCOMPAT_SUPP,
2293 EXT2_LIB_FEATURE_RO_COMPAT_SUPP };
2294 __u32 jrnl_supp[3] = { JBD2_KNOWN_COMPAT_FEATURES,
2295 JBD2_KNOWN_INCOMPAT_FEATURES,
2296 JBD2_KNOWN_ROCOMPAT_FEATURES };
2299 ret = find_supp_feature(supp, E2P_FS_FEATURE, argv[1]);
2301 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE,
2305 com_err(argv[0], 0, "Unknown feature: %s\n", argv[1]);
2307 fprintf(stdout, "Supported feature: %s\n", argv[1]);
2309 fprintf(stdout, "Supported features:");
2310 ret = find_supp_feature(supp, E2P_FS_FEATURE, NULL);
2311 ret = find_supp_feature(jrnl_supp, E2P_JOURNAL_FEATURE, NULL);
2316 void do_punch(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2317 void *infop EXT2FS_ATTR((unused)))
2324 if (common_args_process(argc, argv, 3, 4, argv[0],
2325 "<file> start_blk [end_blk]",
2326 CHECK_FS_RW | CHECK_FS_BITMAPS))
2329 ino = string_to_inode(argv[1]);
2332 err = strtoblk(argv[0], argv[2], "logical block", &start);
2336 err = strtoblk(argv[0], argv[3], "logical block", &end);
2342 errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
2345 com_err(argv[0], errcode,
2346 "while truncating inode %u from %llu to %llu\n", ino,
2347 (unsigned long long) start, (unsigned long long) end);
2352 void do_fallocate(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2353 void *infop EXT2FS_ATTR((unused)))
2360 if (common_args_process(argc, argv, 3, 4, argv[0],
2361 "<file> start_blk [end_blk]",
2362 CHECK_FS_RW | CHECK_FS_BITMAPS))
2365 ino = string_to_inode(argv[1]);
2368 err = strtoblk(argv[0], argv[2], "logical block", &start);
2372 err = strtoblk(argv[0], argv[3], "logical block", &end);
2378 errcode = ext2fs_fallocate(current_fs, EXT2_FALLOCATE_INIT_BEYOND_EOF,
2379 ino, NULL, ~0ULL, start, end - start + 1);
2382 com_err(argv[0], errcode,
2383 "while fallocating inode %u from %llu to %llu\n", ino,
2384 (unsigned long long) start, (unsigned long long) end);
2389 void do_symlink(int argc, char *argv[], int sci_idx EXT2FS_ATTR((unused)),
2390 void *infop EXT2FS_ATTR((unused)))
2394 if (common_args_process(argc, argv, 3, 3, "symlink",
2395 "<filename> <target>", CHECK_FS_RW))
2398 retval = do_symlink_internal(current_fs, cwd, argv[1], argv[2], root);
2400 com_err(argv[0], retval, 0);
2403 #endif /* READ_ONLY */
2406 void do_dump_mmp(int argc EXT2FS_ATTR((unused)), char *argv[],
2407 int sci_idx EXT2FS_ATTR((unused)),
2408 void *infop EXT2FS_ATTR((unused)))
2410 struct mmp_struct *mmp_s;
2411 unsigned long long mmp_block;
2413 errcode_t retval = 0;
2415 if (check_fs_open(argv[0]))
2420 mmp_block = strtoull(argv[1], &end, 0);
2421 if (end == argv[0] || mmp_block == 0) {
2422 fprintf(stderr, "%s: invalid MMP block '%s' given\n",
2427 mmp_block = current_fs->super->s_mmp_block;
2430 if (mmp_block == 0) {
2431 fprintf(stderr, "%s: MMP: not active on this filesystem.\n",
2436 if (current_fs->mmp_buf == NULL) {
2437 retval = ext2fs_get_mem(current_fs->blocksize,
2438 ¤t_fs->mmp_buf);
2440 com_err(argv[0], retval, "allocating MMP buffer.\n");
2445 mmp_s = current_fs->mmp_buf;
2447 retval = ext2fs_mmp_read(current_fs, mmp_block, current_fs->mmp_buf);
2449 com_err(argv[0], retval, "reading MMP block %llu.\n",
2454 t = mmp_s->mmp_time;
2455 fprintf(stdout, "block_number: %llu\n", current_fs->super->s_mmp_block);
2456 fprintf(stdout, "update_interval: %d\n",
2457 current_fs->super->s_mmp_update_interval);
2458 fprintf(stdout, "check_interval: %d\n", mmp_s->mmp_check_interval);
2459 fprintf(stdout, "sequence: %08x\n", mmp_s->mmp_seq);
2460 fprintf(stdout, "time: %lld -- %s", mmp_s->mmp_time, ctime(&t));
2461 fprintf(stdout, "node_name: %.*s\n",
2462 EXT2_LEN_STR(mmp_s->mmp_nodename));
2463 fprintf(stdout, "device_name: %.*s\n",
2464 EXT2_LEN_STR(mmp_s->mmp_bdevname));
2465 fprintf(stdout, "magic: 0x%x\n", mmp_s->mmp_magic);
2466 fprintf(stdout, "checksum: 0x%08x\n", mmp_s->mmp_checksum);
2469 void do_dump_mmp(int argc EXT2FS_ATTR((unused)),
2470 char *argv[] EXT2FS_ATTR((unused)),
2471 int sci_idx EXT2FS_ATTR((unused)),
2472 void *infop EXT2FS_ATTR((unused)))
2474 fprintf(stdout, "MMP is unsupported, please recompile with "
2479 static int source_file(const char *cmd_file, int ss_idx)
2484 int exit_status = 0;
2487 if (strcmp(cmd_file, "-") == 0)
2490 f = fopen(cmd_file, "r");
2498 setbuf(stdout, NULL);
2499 setbuf(stderr, NULL);
2501 if (fgets(buf, sizeof(buf), f) == NULL)
2503 if (buf[0] == '#') {
2507 cp = strchr(buf, '\n');
2510 cp = strchr(buf, '\r');
2513 printf("debugfs: %s\n", buf);
2514 retval = ss_execute_line(ss_idx, buf);
2516 ss_perror(ss_idx, retval, buf);
2525 int main(int argc, char **argv)
2529 "Usage: %s [-b blocksize] [-s superblock] [-f cmd_file] "
2530 "[-R request] [-d data_source_device] [-i] [-n] [-D] [-V] ["
2532 "[-w] [-z undo_file] "
2536 int open_flags = EXT2_FLAG_SOFTSUPP_FEATURES |
2537 EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
2539 int exit_status = 0;
2541 blk64_t superblock = 0;
2542 blk64_t blocksize = 0;
2543 int catastrophic = 0;
2544 char *data_filename = 0;
2546 const char *opt_string = "nicR:f:b:s:Vd:D";
2548 const char *opt_string = "niwcR:f:b:s:Vd:Dz:";
2550 char *undo_file = NULL;
2551 #ifdef CONFIG_JBD_DEBUG
2555 if (debug_prog_name == 0)
2557 debug_prog_name = "rdebugfs";
2559 debug_prog_name = "debugfs";
2561 add_error_table(&et_ext2_error_table);
2562 fprintf (stderr, "%s %s (%s)\n", debug_prog_name,
2563 E2FSPROGS_VERSION, E2FSPROGS_DATE);
2565 #ifdef CONFIG_JBD_DEBUG
2566 jbd_debug = ss_safe_getenv("DEBUGFS_JBD_DEBUG");
2568 int res = sscanf(jbd_debug, "%d", &journal_enable_debug);
2572 "DEBUGFS_JBD_DEBUG \"%s\" not an integer\n\n",
2578 while ((c = getopt (argc, argv, opt_string)) != EOF) {
2587 data_filename = optarg;
2590 open_flags |= EXT2_FLAG_IMAGE_FILE;
2593 open_flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2597 open_flags |= EXT2_FLAG_RW;
2601 open_flags |= EXT2_FLAG_DIRECT_IO;
2604 blocksize = parse_ulong(optarg, argv[0],
2608 retval = strtoblk(argv[0], optarg,
2609 "superblock block number",
2618 /* Print version number and exit */
2619 fprintf(stderr, "\tUsing %s\n",
2620 error_message(EXT2_ET_BASE));
2628 com_err(argv[0], 0, usage, debug_prog_name);
2633 open_filesystem(argv[optind], open_flags,
2634 superblock, blocksize, catastrophic,
2635 data_filename, undo_file);
2637 ss_sci_idx = ss_create_invocation(debug_prog_name, "0.0", (char *) NULL,
2638 &debug_cmds, &retval);
2640 ss_perror(ss_sci_idx, retval, "creating invocation");
2643 ss_get_readline(ss_sci_idx);
2645 (void) ss_add_request_table(ss_sci_idx, &ss_std_requests, 1, &retval);
2647 ss_perror(ss_sci_idx, retval, "adding standard requests");
2651 ss_add_request_table(ss_sci_idx, extra_cmds, 1, &retval);
2653 ss_perror(ss_sci_idx, retval, "adding extra requests");
2658 retval = ss_execute_line(ss_sci_idx, request);
2660 ss_perror(ss_sci_idx, retval, request);
2663 } else if (cmd_file) {
2664 exit_status = source_file(cmd_file, ss_sci_idx);
2666 ss_listen(ss_sci_idx);
2669 ss_delete_invocation(ss_sci_idx);
2674 remove_error_table(&et_ext2_error_table);