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>
27 #include <sys/types.h>
30 #include "et/com_err.h"
33 #include "uuid/uuid.h"
36 #include "../version.h"
38 extern ss_request_table debug_cmds;
40 ext2_filsys current_fs = NULL;
43 static void open_filesystem(char *device, int open_flags, blk_t superblock,
44 blk_t blocksize, int catastrophic)
48 if (superblock != 0 && blocksize == 0) {
49 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
54 if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
56 "opening read-only because of catastrophic mode");
57 open_flags &= ~EXT2_FLAG_RW;
60 retval = ext2fs_open(device, open_flags, superblock, blocksize,
61 unix_io_manager, ¤t_fs);
63 com_err(device, retval, "while opening filesystem");
69 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
71 retval = ext2fs_read_inode_bitmap(current_fs);
73 com_err(device, retval, "while reading inode bitmap");
76 retval = ext2fs_read_block_bitmap(current_fs);
78 com_err(device, retval, "while reading block bitmap");
82 root = cwd = EXT2_ROOT_INO;
86 retval = ext2fs_close(current_fs);
88 com_err(device, retval, "while trying to close filesystem");
92 void do_open_filesys(int argc, char **argv)
94 const char *usage = "Usage: open [-s superblock] [-b blocksize] [-c] [-w] <device>";
102 while ((c = getopt (argc, argv, "iwfcb:s:")) != EOF) {
105 open_flags |= EXT2_FLAG_IMAGE_FILE;
108 open_flags |= EXT2_FLAG_RW;
111 open_flags |= EXT2_FLAG_FORCE;
117 blocksize = parse_ulong(optarg, argv[0],
123 superblock = parse_ulong(optarg, argv[0],
124 "superblock number", &err);
129 com_err(argv[0], 0, usage);
133 if (optind != argc-1) {
134 com_err(argv[0], 0, usage);
137 if (check_fs_not_open(argv[0]))
139 open_filesystem(argv[optind], open_flags,
140 superblock, blocksize, catastrophic);
143 void do_lcd(int argc, char **argv)
145 if (common_args_process(argc, argv, 2, 2, "lcd",
149 if (chdir(argv[1]) == -1) {
150 com_err(argv[0], errno,
151 "while trying to change native directory to %s",
157 static void close_filesystem(NOARGS)
161 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
162 retval = ext2fs_write_inode_bitmap(current_fs);
164 com_err("ext2fs_write_inode_bitmap", retval, "");
166 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
167 retval = ext2fs_write_block_bitmap(current_fs);
169 com_err("ext2fs_write_block_bitmap", retval, "");
171 retval = ext2fs_close(current_fs);
173 com_err("ext2fs_close", retval, "");
178 void do_close_filesys(int argc, char **argv)
180 if (common_args_process(argc, argv, 1, 1, "close_filesys", "", 0))
185 void do_init_filesys(int argc, char **argv)
187 struct ext2_super_block param;
191 if (common_args_process(argc, argv, 3, 3, "initialize",
192 "<device> <blocksize>", CHECK_FS_NOTOPEN))
195 memset(¶m, 0, sizeof(struct ext2_super_block));
196 param.s_blocks_count = parse_ulong(argv[2], argv[0],
197 "blocks count", &err);
200 retval = ext2fs_initialize(argv[1], 0, ¶m,
201 unix_io_manager, ¤t_fs);
203 com_err(argv[1], retval, "while initializing filesystem");
207 root = cwd = EXT2_ROOT_INO;
211 static void print_features(struct ext2_super_block * s, FILE *f)
214 __u32 *mask = &s->s_feature_compat, m;
216 fputs("Filesystem features:", f);
217 for (i=0; i <3; i++,mask++) {
218 for (j=0,m=1; j < 32; j++, m<<=1) {
220 fprintf(f, " %s", e2p_feature2string(i, m));
230 void do_show_super_stats(int argc, char *argv[])
234 struct ext2_group_desc *gdp;
235 int c, header_only = 0;
237 const char *usage = "Usage: show_super [-h]";
240 while ((c = getopt (argc, argv, "h")) != EOF) {
246 com_err(argv[0], 0, usage);
250 if (optind != argc) {
251 com_err(argv[0], 0, usage);
254 if (check_fs_open(argv[0]))
258 list_super2(current_fs->super, out);
259 for (i=0; i < current_fs->group_desc_count; i++)
260 numdirs += current_fs->group_desc[i].bg_used_dirs_count;
261 fprintf(out, "Directories: %d\n", numdirs);
268 gdp = ¤t_fs->group_desc[0];
269 for (i = 0; i < current_fs->group_desc_count; i++, gdp++)
270 fprintf(out, " Group %2d: block bitmap at %d, "
271 "inode bitmap at %d, "
272 "inode table at %d\n"
276 i, gdp->bg_block_bitmap,
277 gdp->bg_inode_bitmap, gdp->bg_inode_table,
278 gdp->bg_free_blocks_count,
279 gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
280 gdp->bg_free_inodes_count,
281 gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
282 gdp->bg_used_dirs_count,
283 gdp->bg_used_dirs_count != 1 ? "directories"
288 void do_dirty_filesys(int argc EXT2FS_ATTR((unused)),
289 char **argv EXT2FS_ATTR((unused)))
291 if (check_fs_open(argv[0]))
293 if (check_fs_read_write(argv[0]))
296 if (argv[1] && !strcmp(argv[1], "-clean"))
297 current_fs->super->s_state |= EXT2_VALID_FS;
299 current_fs->super->s_state &= ~EXT2_VALID_FS;
300 ext2fs_mark_super_dirty(current_fs);
303 struct list_blocks_struct {
306 blk_t first_block, last_block;
307 e2_blkcnt_t first_bcnt, last_bcnt;
311 static void finish_range(struct list_blocks_struct *lb)
313 if (lb->first_block == 0)
318 fprintf(lb->f, ", ");
319 if (lb->first_block == lb->last_block)
320 fprintf(lb->f, "(%lld):%d", lb->first_bcnt, lb->first_block);
322 fprintf(lb->f, "(%lld-%lld):%d-%d", lb->first_bcnt,
323 lb->last_bcnt, lb->first_block, lb->last_block);
327 static int list_blocks_proc(ext2_filsys fs EXT2FS_ATTR((unused)),
328 blk_t *blocknr, e2_blkcnt_t blockcnt,
329 blk_t ref_block EXT2FS_ATTR((unused)),
330 int ref_offset EXT2FS_ATTR((unused)),
333 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
338 * See if we can add on to the existing range (if it exists)
340 if (lb->first_block &&
341 (lb->last_block+1 == *blocknr) &&
342 (lb->last_bcnt+1 == blockcnt)) {
343 lb->last_block = *blocknr;
344 lb->last_bcnt = blockcnt;
351 lb->first_block = lb->last_block = *blocknr;
352 lb->first_bcnt = lb->last_bcnt = blockcnt;
356 * Not a normal block. Always force a new range.
362 fprintf(lb->f, ", ");
364 fprintf(lb->f, "(IND):%d", *blocknr);
365 else if (blockcnt == -2)
366 fprintf(lb->f, "(DIND):%d", *blocknr);
367 else if (blockcnt == -3)
368 fprintf(lb->f, "(TIND):%d", *blocknr);
373 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
375 struct list_blocks_struct lb;
377 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
382 ext2fs_block_iterate2(current_fs, inode, 0, NULL,
383 list_blocks_proc, (void *)&lb);
386 fprintf(f, "\n%sTOTAL: %lld\n", prefix, lb.total);
391 void internal_dump_inode(FILE *out, const char *prefix,
392 ext2_ino_t inode_num, struct ext2_inode *inode,
397 int os = current_fs->super->s_creator_os;
399 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
400 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
401 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
402 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
403 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
404 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
405 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
406 else i_type = "bad type";
407 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
408 fprintf(out, "%sMode: %04o Flags: 0x%x Generation: %u\n",
410 inode->i_mode & 0777, inode->i_flags, inode->i_generation);
411 fprintf(out, "%sUser: %5d Group: %5d Size: ",
412 prefix, inode->i_uid, inode->i_gid);
413 if (LINUX_S_ISREG(inode->i_mode)) {
414 __u64 i_size = (inode->i_size |
415 ((unsigned long long)inode->i_size_high << 32));
417 fprintf(out, "%lld\n", i_size);
419 fprintf(out, "%d\n", inode->i_size);
420 if (current_fs->super->s_creator_os == EXT2_OS_HURD)
422 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
424 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
425 inode->osd1.hurd1.h_i_translator);
427 fprintf(out, "%sFile ACL: %d Directory ACL: %d\n",
429 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
430 fprintf(out, "%sLinks: %d Blockcount: %d\n",
431 prefix, inode->i_links_count, inode->i_blocks);
434 frag = inode->osd2.linux2.l_i_frag;
435 fsize = inode->osd2.linux2.l_i_fsize;
438 frag = inode->osd2.hurd2.h_i_frag;
439 fsize = inode->osd2.hurd2.h_i_fsize;
442 frag = inode->osd2.masix2.m_i_frag;
443 fsize = inode->osd2.masix2.m_i_fsize;
448 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
449 prefix, inode->i_faddr, frag, fsize);
450 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
451 time_to_string(inode->i_ctime));
452 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
453 time_to_string(inode->i_atime));
454 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
455 time_to_string(inode->i_mtime));
457 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
458 time_to_string(inode->i_dtime));
459 if (LINUX_S_ISLNK(inode->i_mode) && inode->i_blocks == 0)
460 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
461 (int) inode->i_size, (char *)inode->i_block);
462 else if (do_dump_blocks)
463 dump_blocks(out, prefix, inode_num);
466 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode inode)
471 internal_dump_inode(out, "", inode_num, &inode, 1);
475 void do_stat(int argc, char *argv[])
478 struct ext2_inode inode_buf;
480 if (common_inode_args_process(argc, argv, &inode, 0))
483 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
486 dump_inode(inode,inode_buf);
490 void do_chroot(int argc, char *argv[])
495 if (common_inode_args_process(argc, argv, &inode, 0))
498 retval = ext2fs_check_directory(current_fs, inode);
500 com_err(argv[1], retval, "");
506 void do_clri(int argc, char *argv[])
509 struct ext2_inode inode_buf;
511 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
514 if (debugfs_read_inode(inode, &inode_buf, argv[0]))
516 memset(&inode_buf, 0, sizeof(inode_buf));
517 if (debugfs_write_inode(inode, &inode_buf, argv[0]))
521 void do_freei(int argc, char *argv[])
525 if (common_inode_args_process(argc, argv, &inode,
526 CHECK_FS_RW | CHECK_FS_BITMAPS))
529 if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
530 com_err(argv[0], 0, "Warning: inode already clear");
531 ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
532 ext2fs_mark_ib_dirty(current_fs);
535 void do_seti(int argc, char *argv[])
539 if (common_inode_args_process(argc, argv, &inode,
540 CHECK_FS_RW | CHECK_FS_BITMAPS))
543 if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
544 com_err(argv[0], 0, "Warning: inode already set");
545 ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
546 ext2fs_mark_ib_dirty(current_fs);
549 void do_testi(int argc, char *argv[])
553 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_BITMAPS))
556 if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
557 printf("Inode %u is marked in use\n", inode);
559 printf("Inode %u is not in use\n", inode);
562 void do_freeb(int argc, char *argv[])
567 if (common_block_args_process(argc, argv, &block, &count))
569 if (check_fs_read_write(argv[0]))
571 while (count-- > 0) {
572 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
573 com_err(argv[0], 0, "Warning: block %d already clear",
575 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
578 ext2fs_mark_bb_dirty(current_fs);
581 void do_setb(int argc, char *argv[])
586 if (common_block_args_process(argc, argv, &block, &count))
588 if (check_fs_read_write(argv[0]))
590 while (count-- > 0) {
591 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
592 com_err(argv[0], 0, "Warning: block %d already set",
594 ext2fs_mark_block_bitmap(current_fs->block_map,block);
597 ext2fs_mark_bb_dirty(current_fs);
600 void do_testb(int argc, char *argv[])
605 if (common_block_args_process(argc, argv, &block, &count))
607 while (count-- > 0) {
608 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
609 printf("Block %d marked in use\n", block);
611 printf("Block %d not in use\n", block);
616 static void modify_u8(char *com, const char *prompt,
617 const char *format, __u8 *val)
623 sprintf(buf, format, *val);
624 printf("%30s [%s] ", prompt, buf);
625 fgets(buf, sizeof(buf), stdin);
626 if (buf[strlen (buf) - 1] == '\n')
627 buf[strlen (buf) - 1] = '\0';
630 v = strtoul(buf, &tmp, 0);
632 com_err(com, 0, "Bad value - %s", buf);
637 static void modify_u16(char *com, const char *prompt,
638 const char *format, __u16 *val)
644 sprintf(buf, format, *val);
645 printf("%30s [%s] ", prompt, buf);
646 fgets(buf, sizeof(buf), stdin);
647 if (buf[strlen (buf) - 1] == '\n')
648 buf[strlen (buf) - 1] = '\0';
651 v = strtoul(buf, &tmp, 0);
653 com_err(com, 0, "Bad value - %s", buf);
658 static void modify_u32(char *com, const char *prompt,
659 const char *format, __u32 *val)
665 sprintf(buf, format, *val);
666 printf("%30s [%s] ", prompt, buf);
667 fgets(buf, sizeof(buf), stdin);
668 if (buf[strlen (buf) - 1] == '\n')
669 buf[strlen (buf) - 1] = '\0';
672 v = strtoul(buf, &tmp, 0);
674 com_err(com, 0, "Bad value - %s", buf);
680 void do_modify_inode(int argc, char *argv[])
682 struct ext2_inode inode;
683 ext2_ino_t inode_num;
685 unsigned char *frag, *fsize;
688 const char *hex_format = "0x%x";
689 const char *octal_format = "0%o";
690 const char *decimal_format = "%d";
692 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
695 os = current_fs->super->s_creator_os;
697 if (debugfs_read_inode(inode_num, &inode, argv[1]))
700 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
701 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
702 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
703 modify_u32(argv[0], "Size", decimal_format, &inode.i_size);
704 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
705 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
706 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
707 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
708 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
709 modify_u32(argv[0], "Block count", decimal_format, &inode.i_blocks);
710 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
711 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
713 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
715 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
716 if (LINUX_S_ISDIR(inode.i_mode))
717 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
719 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
721 if (current_fs->super->s_creator_os == EXT2_OS_HURD)
722 modify_u32(argv[0], "Translator Block",
723 decimal_format, &inode.osd1.hurd1.h_i_translator);
725 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
728 frag = &inode.osd2.linux2.l_i_frag;
729 fsize = &inode.osd2.linux2.l_i_fsize;
732 frag = &inode.osd2.hurd2.h_i_frag;
733 fsize = &inode.osd2.hurd2.h_i_fsize;
736 frag = &inode.osd2.masix2.m_i_frag;
737 fsize = &inode.osd2.masix2.m_i_fsize;
743 modify_u8(argv[0], "Fragment number", decimal_format, frag);
745 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
747 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
748 sprintf(buf, "Direct Block #%d", i);
749 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
751 modify_u32(argv[0], "Indirect Block", decimal_format,
752 &inode.i_block[EXT2_IND_BLOCK]);
753 modify_u32(argv[0], "Double Indirect Block", decimal_format,
754 &inode.i_block[EXT2_DIND_BLOCK]);
755 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
756 &inode.i_block[EXT2_TIND_BLOCK]);
757 if (debugfs_write_inode(inode_num, &inode, argv[1]))
761 void do_change_working_dir(int argc, char *argv[])
766 if (common_inode_args_process(argc, argv, &inode, 0))
769 retval = ext2fs_check_directory(current_fs, inode);
771 com_err(argv[1], retval, "");
778 void do_print_working_directory(int argc, char *argv[])
781 char *pathname = NULL;
783 if (common_args_process(argc, argv, 1, 1,
784 "print_working_directory", "", 0))
787 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
789 com_err(argv[0], retval,
790 "while trying to get pathname of cwd");
792 printf("[pwd] INODE: %6u PATH: %s\n", cwd, pathname);
794 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
796 com_err(argv[0], retval,
797 "while trying to get pathname of root");
799 printf("[root] INODE: %6u PATH: %s\n", root, pathname);
804 static void make_link(char *sourcename, char *destname)
809 char *dest, *cp, *basename;
812 * Get the source inode
814 inode = string_to_inode(sourcename);
817 basename = strrchr(sourcename, '/');
821 basename = sourcename;
823 * Figure out the destination. First see if it exists and is
826 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
830 * OK, it doesn't exist. See if it is
831 * '<dir>/basename' or 'basename'
833 cp = strrchr(destname, '/');
836 dir = string_to_inode(destname);
846 retval = ext2fs_link(current_fs, dir, dest, inode, 0);
848 com_err("make_link", retval, "");
853 void do_link(int argc, char *argv[])
855 if (common_args_process(argc, argv, 3, 3, "link",
856 "<source file> <dest_name>", CHECK_FS_RW))
859 make_link(argv[1], argv[2]);
862 static int mark_blocks_proc(ext2_filsys fs, blk_t *blocknr,
863 int blockcnt EXT2FS_ATTR((unused)),
864 void *private EXT2FS_ATTR((unused)))
869 ext2fs_block_alloc_stats(fs, block, +1);
873 void do_undel(int argc, char *argv[])
876 struct ext2_inode inode;
878 if (common_args_process(argc, argv, 3, 3, "undelete",
879 "<inode_num> <dest_name>",
880 CHECK_FS_RW | CHECK_FS_BITMAPS))
883 ino = string_to_inode(argv[1]);
887 if (debugfs_read_inode(ino, &inode, argv[1]))
890 if (ext2fs_test_inode_bitmap(current_fs->inode_map, ino)) {
891 com_err(argv[1], 0, "Inode is not marked as deleted");
896 * XXX this function doesn't handle changing the links count on the
897 * parent directory when undeleting a directory.
899 inode.i_links_count = LINUX_S_ISDIR(inode.i_mode) ? 2 : 1;
902 if (debugfs_write_inode(ino, &inode, argv[0]))
905 ext2fs_block_iterate(current_fs, ino, 0, NULL,
906 mark_blocks_proc, NULL);
908 ext2fs_inode_alloc_stats2(current_fs, ino, +1, 0);
910 make_link(argv[1], argv[2]);
913 static void unlink_file_by_name(char *filename)
919 basename = strrchr(filename, '/');
922 dir = string_to_inode(filename);
929 retval = ext2fs_unlink(current_fs, dir, basename, 0, 0);
931 com_err("unlink_file_by_name", retval, "");
935 void do_unlink(int argc, char *argv[])
937 if (common_args_process(argc, argv, 2, 2, "link",
938 "<pathname>", CHECK_FS_RW))
941 unlink_file_by_name(argv[1]);
944 void do_find_free_block(int argc, char *argv[])
946 blk_t free_blk, goal;
951 if ((argc > 3) || (argc==2 && *argv[1] == '?')) {
952 com_err(argv[0], 0, "Usage: find_free_block [count [goal]]");
955 if (check_fs_open(argv[0]))
959 count = strtol(argv[1],&tmp,0);
961 com_err(argv[0], 0, "Bad count - %s", argv[1]);
968 goal = strtol(argv[2], &tmp, 0);
970 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
975 goal = current_fs->super->s_first_data_block;
977 printf("Free blocks found: ");
979 while (count-- > 0) {
980 retval = ext2fs_new_block(current_fs, free_blk + 1, 0,
983 com_err("ext2fs_new_block", retval, "");
986 printf("%d ", free_blk);
991 void do_find_free_inode(int argc, char *argv[])
993 ext2_ino_t free_inode, dir;
998 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
999 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1002 if (check_fs_open(argv[0]))
1006 dir = strtol(argv[1], &tmp, 0);
1008 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1015 mode = strtol(argv[2], &tmp, 0);
1017 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1023 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1025 com_err("ext2fs_new_inode", retval, "");
1027 printf("Free inode found: %u\n", free_inode);
1030 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1032 ext2_file_t e2_file;
1035 unsigned int written;
1039 retval = ext2fs_file_open(current_fs, newfile,
1040 EXT2_FILE_WRITE, &e2_file);
1045 got = read(fd, buf, sizeof(buf));
1054 retval = ext2fs_file_write(e2_file, ptr,
1063 retval = ext2fs_file_close(e2_file);
1067 (void) ext2fs_file_close(e2_file);
1072 void do_write(int argc, char *argv[])
1075 struct stat statbuf;
1078 struct ext2_inode inode;
1080 if (common_args_process(argc, argv, 3, 3, "write",
1081 "<native file> <new file>", CHECK_FS_RW))
1084 fd = open(argv[1], O_RDONLY);
1086 com_err(argv[1], errno, "");
1089 if (fstat(fd, &statbuf) < 0) {
1090 com_err(argv[1], errno, "");
1095 retval = ext2fs_namei(current_fs, root, cwd, argv[2], &newfile);
1097 com_err(argv[0], 0, "The file '%s' already exists\n", argv[2]);
1102 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1104 com_err(argv[0], retval, "");
1108 printf("Allocated inode: %u\n", newfile);
1109 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1111 if (retval == EXT2_ET_DIR_NO_SPACE) {
1112 retval = ext2fs_expand_dir(current_fs, cwd);
1114 com_err(argv[0], retval, "while expanding directory");
1117 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1121 com_err(argv[2], retval, "");
1125 if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1126 com_err(argv[0], 0, "Warning: inode already set");
1127 ext2fs_inode_alloc_stats2(current_fs, newfile, +1, 0);
1128 memset(&inode, 0, sizeof(inode));
1129 inode.i_mode = (statbuf.st_mode & ~LINUX_S_IFMT) | LINUX_S_IFREG;
1130 inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1131 inode.i_links_count = 1;
1132 inode.i_size = statbuf.st_size;
1133 if (debugfs_write_inode(newfile, &inode, argv[0])) {
1137 if (LINUX_S_ISREG(inode.i_mode)) {
1138 retval = copy_file(fd, newfile);
1140 com_err("copy_file", retval, "");
1145 void do_mknod(int argc, char *argv[])
1147 unsigned long mode, major, minor;
1150 struct ext2_inode inode;
1153 if (check_fs_open(argv[0]))
1155 if (argc < 3 || argv[2][1]) {
1157 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1160 mode = minor = major = 0;
1161 switch (argv[2][0]) {
1163 mode = LINUX_S_IFIFO;
1164 filetype = EXT2_FT_FIFO;
1168 mode = LINUX_S_IFCHR;
1169 filetype = EXT2_FT_CHRDEV;
1173 mode = LINUX_S_IFBLK;
1174 filetype = EXT2_FT_BLKDEV;
1182 major = strtoul(argv[3], argv+3, 0);
1183 minor = strtoul(argv[4], argv+4, 0);
1184 if (major > 255 || minor > 255 || argv[3][0] || argv[4][0])
1189 if (check_fs_read_write(argv[0]))
1191 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1193 com_err(argv[0], retval, "");
1196 printf("Allocated inode: %u\n", newfile);
1197 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1198 if (retval == EXT2_ET_DIR_NO_SPACE) {
1199 retval = ext2fs_expand_dir(current_fs, cwd);
1201 com_err(argv[0], retval, "while expanding directory");
1204 retval = ext2fs_link(current_fs, cwd, argv[1], newfile,
1208 com_err(argv[1], retval, "");
1211 if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1212 com_err(argv[0], 0, "Warning: inode already set");
1213 ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1214 ext2fs_mark_ib_dirty(current_fs);
1215 memset(&inode, 0, sizeof(inode));
1216 inode.i_mode = mode;
1217 inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1218 inode.i_block[0] = major*256+minor;
1219 inode.i_links_count = 1;
1220 if (debugfs_write_inode(newfile, &inode, argv[0]))
1224 void do_mkdir(int argc, char *argv[])
1231 if (common_args_process(argc, argv, 2, 2, "mkdir",
1232 "<filename>", CHECK_FS_RW))
1235 cp = strrchr(argv[1], '/');
1238 parent = string_to_inode(argv[1]);
1240 com_err(argv[1], ENOENT, "");
1250 retval = ext2fs_mkdir(current_fs, parent, 0, name);
1251 if (retval == EXT2_ET_DIR_NO_SPACE) {
1252 retval = ext2fs_expand_dir(current_fs, parent);
1254 com_err("argv[0]", retval, "while expanding directory");
1260 com_err("ext2fs_mkdir", retval, "");
1266 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1267 int blockcnt EXT2FS_ATTR((unused)),
1268 void *private EXT2FS_ATTR((unused)))
1273 ext2fs_block_alloc_stats(fs, block, -1);
1277 static void kill_file_by_inode(ext2_ino_t inode)
1279 struct ext2_inode inode_buf;
1281 if (debugfs_read_inode(inode, &inode_buf, 0))
1283 inode_buf.i_dtime = time(NULL);
1284 if (debugfs_write_inode(inode, &inode_buf, 0))
1287 ext2fs_block_iterate(current_fs, inode, 0, NULL,
1288 release_blocks_proc, NULL);
1290 ext2fs_inode_alloc_stats2(current_fs, inode, -1,
1291 LINUX_S_ISDIR(inode_buf.i_mode));
1295 void do_kill_file(int argc, char *argv[])
1297 ext2_ino_t inode_num;
1299 if (common_inode_args_process(argc, argv, &inode_num, CHECK_FS_RW))
1302 kill_file_by_inode(inode_num);
1305 void do_rm(int argc, char *argv[])
1308 ext2_ino_t inode_num;
1309 struct ext2_inode inode;
1311 if (common_args_process(argc, argv, 2, 2, "rm",
1312 "<filename>", CHECK_FS_RW))
1315 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1317 com_err(argv[0], retval, "while trying to resolve filename");
1321 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1324 if (LINUX_S_ISDIR(inode.i_mode)) {
1325 com_err(argv[0], 0, "file is a directory");
1329 --inode.i_links_count;
1330 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1333 unlink_file_by_name(argv[1]);
1334 if (inode.i_links_count == 0)
1335 kill_file_by_inode(inode_num);
1343 static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
1344 int entry EXT2FS_ATTR((unused)),
1345 struct ext2_dir_entry *dirent,
1346 int offset EXT2FS_ATTR((unused)),
1347 int blocksize EXT2FS_ATTR((unused)),
1348 char *buf EXT2FS_ATTR((unused)),
1351 struct rd_struct *rds = (struct rd_struct *) private;
1353 if (dirent->inode == 0)
1355 if (((dirent->name_len&0xFF) == 1) && (dirent->name[0] == '.'))
1357 if (((dirent->name_len&0xFF) == 2) && (dirent->name[0] == '.') &&
1358 (dirent->name[1] == '.')) {
1359 rds->parent = dirent->inode;
1366 void do_rmdir(int argc, char *argv[])
1369 ext2_ino_t inode_num;
1370 struct ext2_inode inode;
1371 struct rd_struct rds;
1373 if (common_args_process(argc, argv, 2, 2, "rmdir",
1374 "<filename>", CHECK_FS_RW))
1377 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1379 com_err(argv[0], retval, "while trying to resolve filename");
1383 if (debugfs_read_inode(inode_num, &inode, argv[0]))
1386 if (!LINUX_S_ISDIR(inode.i_mode)) {
1387 com_err(argv[0], 0, "file is not a directory");
1394 retval = ext2fs_dir_iterate2(current_fs, inode_num, 0,
1395 0, rmdir_proc, &rds);
1397 com_err(argv[0], retval, "while iterating over directory");
1400 if (rds.empty == 0) {
1401 com_err(argv[0], 0, "directory not empty");
1405 inode.i_links_count = 0;
1406 if (debugfs_write_inode(inode_num, &inode, argv[0]))
1409 unlink_file_by_name(argv[1]);
1410 kill_file_by_inode(inode_num);
1413 if (debugfs_read_inode(rds.parent, &inode, argv[0]))
1415 if (inode.i_links_count > 1)
1416 inode.i_links_count--;
1417 if (debugfs_write_inode(rds.parent, &inode, argv[0]))
1422 void do_show_debugfs_params(int argc EXT2FS_ATTR((unused)),
1423 char *argv[] EXT2FS_ATTR((unused)))
1428 fprintf(out, "Open mode: read-%s\n",
1429 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1430 fprintf(out, "Filesystem in use: %s\n",
1431 current_fs ? current_fs->device_name : "--none--");
1434 void do_expand_dir(int argc, char *argv[])
1439 if (common_inode_args_process(argc, argv, &inode, CHECK_FS_RW))
1442 retval = ext2fs_expand_dir(current_fs, inode);
1444 com_err("ext2fs_expand_dir", retval, "");
1448 void do_features(int argc, char *argv[])
1452 if (check_fs_open(argv[0]))
1455 if ((argc != 1) && check_fs_read_write(argv[0]))
1457 for (i=1; i < argc; i++) {
1458 if (e2p_edit_feature(argv[i],
1459 ¤t_fs->super->s_feature_compat, 0))
1460 com_err(argv[0], 0, "Unknown feature: %s\n",
1463 ext2fs_mark_super_dirty(current_fs);
1465 print_features(current_fs->super, stdout);
1468 void do_bmap(int argc, char *argv[])
1475 if (common_args_process(argc, argv, 3, 3, argv[0],
1476 "<file> logical_blk", 0))
1479 ino = string_to_inode(argv[1]);
1482 blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
1484 errcode = ext2fs_bmap(current_fs, ino, 0, 0, 0, blk, &pblk);
1486 com_err("argv[0]", errcode,
1487 "while mapping logical block %d\n", blk);
1490 printf("%d\n", pblk);
1493 void do_imap(int argc, char *argv[])
1496 unsigned long group, block, block_nr, offset;
1498 if (common_args_process(argc, argv, 2, 2, argv[0],
1501 ino = string_to_inode(argv[1]);
1505 group = (ino - 1) / EXT2_INODES_PER_GROUP(current_fs->super);
1506 offset = ((ino - 1) % EXT2_INODES_PER_GROUP(current_fs->super)) *
1507 EXT2_INODE_SIZE(current_fs->super);
1508 block = offset >> EXT2_BLOCK_SIZE_BITS(current_fs->super);
1509 if (!current_fs->group_desc[(unsigned)group].bg_inode_table) {
1510 com_err(argv[0], 0, "Inode table for group %lu is missing\n",
1514 block_nr = current_fs->group_desc[(unsigned)group].bg_inode_table +
1516 offset &= (EXT2_BLOCK_SIZE(current_fs->super) - 1);
1518 printf("Inode %d is part of block group %lu\n"
1519 "\tlocated at block %lu, offset 0x%04lx\n", ino, group,
1526 static int source_file(const char *cmd_file, int sci_idx)
1531 int exit_status = 0;
1534 if (strcmp(cmd_file, "-") == 0)
1537 f = fopen(cmd_file, "r");
1543 setbuf(stdout, NULL);
1544 setbuf(stderr, NULL);
1546 if (fgets(buf, sizeof(buf), f) == NULL)
1548 cp = strchr(buf, '\n');
1551 cp = strchr(buf, '\r');
1554 printf("debugfs: %s\n", buf);
1555 retval = ss_execute_line(sci_idx, buf);
1557 ss_perror(sci_idx, retval, buf);
1564 int main(int argc, char **argv)
1568 const char *usage = "Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1572 int exit_status = 0;
1574 blk_t superblock = 0;
1575 blk_t blocksize = 0;
1576 int catastrophic = 0;
1578 initialize_ext2_error_table();
1579 fprintf (stderr, "debugfs %s (%s)\n", E2FSPROGS_VERSION,
1582 while ((c = getopt (argc, argv, "iwcR:f:b:s:V")) != EOF) {
1591 open_flags |= EXT2_FLAG_IMAGE_FILE;
1594 open_flags |= EXT2_FLAG_RW;
1597 blocksize = parse_ulong(optarg, argv[0],
1601 superblock = parse_ulong(optarg, argv[0],
1602 "superblock number", 0);
1608 /* Print version number and exit */
1609 fprintf(stderr, "\tUsing %s\n",
1610 error_message(EXT2_ET_BASE));
1613 com_err(argv[0], 0, usage);
1618 open_filesystem(argv[optind], open_flags,
1619 superblock, blocksize, catastrophic);
1621 sci_idx = ss_create_invocation("debugfs", "0.0", (char *) NULL,
1622 &debug_cmds, &retval);
1624 ss_perror(sci_idx, retval, "creating invocation");
1627 ss_get_readline(sci_idx);
1629 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
1631 ss_perror(sci_idx, retval, "adding standard requests");
1636 retval = ss_execute_line(sci_idx, request);
1638 ss_perror(sci_idx, retval, request);
1641 } else if (cmd_file) {
1642 exit_status = source_file(cmd_file, sci_idx);