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>
24 extern int optreset; /* defined by BSD, but not others */
30 #include <sys/types.h>
33 #include "et/com_err.h"
36 #include "uuid/uuid.h"
39 #include "../version.h"
41 extern ss_request_table debug_cmds;
43 ext2_filsys current_fs = NULL;
46 static void open_filesystem(char *device, int open_flags, blk_t superblock,
47 blk_t blocksize, int catastrophic)
51 if (superblock != 0 && blocksize == 0) {
52 com_err(device, 0, "if you specify the superblock, you must also specify the block size");
57 if (catastrophic && (open_flags & EXT2_FLAG_RW)) {
59 "opening read-only because of catastrophic mode");
60 open_flags &= ~EXT2_FLAG_RW;
63 retval = ext2fs_open(device, open_flags, superblock, blocksize,
64 unix_io_manager, ¤t_fs);
66 com_err(device, retval, "while opening filesystem");
72 com_err(device, 0, "catastrophic mode - not reading inode or group bitmaps");
74 retval = ext2fs_read_inode_bitmap(current_fs);
76 com_err(device, retval, "while reading inode bitmap");
79 retval = ext2fs_read_block_bitmap(current_fs);
81 com_err(device, retval, "while reading block bitmap");
85 root = cwd = EXT2_ROOT_INO;
89 retval = ext2fs_close(current_fs);
91 com_err(device, retval, "while trying to close filesystem");
95 void do_open_filesys(int argc, char **argv)
97 const char *usage = "Usage: open [-s superblock] [-b blocksize] [-c] [-w] <device>";
100 blk_t superblock = 0;
107 optreset = 1; /* Makes BSD getopt happy */
109 while ((c = getopt (argc, argv, "iwfcb:s:")) != EOF) {
112 open_flags |= EXT2_FLAG_IMAGE_FILE;
115 open_flags |= EXT2_FLAG_RW;
118 open_flags |= EXT2_FLAG_FORCE;
124 blocksize = strtoul(optarg, &tmp, 0);
127 "Bad block size - %s", optarg);
132 superblock = strtoul(optarg, &tmp, 0);
135 "Bad superblock number - %s", optarg);
140 com_err(argv[0], 0, usage);
144 if (optind != argc-1) {
145 com_err(argv[0], 0, usage);
148 if (check_fs_not_open(argv[0]))
150 open_filesystem(argv[optind], open_flags,
151 superblock, blocksize, catastrophic);
154 void do_lcd(int argc, char **argv)
156 const char *usage = "Usage: lcd <native dir>";
159 com_err(argv[0], 0, usage);
163 if (chdir(argv[1]) == -1) {
164 com_err(argv[0], errno,
165 "while trying to change native directory to %s",
171 static void close_filesystem(NOARGS)
175 if (current_fs->flags & EXT2_FLAG_IB_DIRTY) {
176 retval = ext2fs_write_inode_bitmap(current_fs);
178 com_err("ext2fs_write_inode_bitmap", retval, "");
180 if (current_fs->flags & EXT2_FLAG_BB_DIRTY) {
181 retval = ext2fs_write_block_bitmap(current_fs);
183 com_err("ext2fs_write_block_bitmap", retval, "");
185 retval = ext2fs_close(current_fs);
187 com_err("ext2fs_close", retval, "");
192 void do_close_filesys(int argc, char **argv)
195 com_err(argv[0], 0, "Usage: close_filesys");
198 if (check_fs_open(argv[0]))
203 void do_init_filesys(int argc, char **argv)
205 const char *usage = "Usage: initialize <device> <blocksize>";
206 struct ext2_super_block param;
211 com_err(argv[0], 0, usage);
214 if (check_fs_not_open(argv[0]))
217 memset(¶m, 0, sizeof(struct ext2_super_block));
218 param.s_blocks_count = strtoul(argv[2], &tmp, 0);
220 com_err(argv[0], 0, "Bad blocks count - %s", argv[2]);
223 retval = ext2fs_initialize(argv[1], 0, ¶m,
224 unix_io_manager, ¤t_fs);
226 com_err(argv[1], retval, "while initializing filesystem");
230 root = cwd = EXT2_ROOT_INO;
234 static void print_features(struct ext2_super_block * s, FILE *f)
237 __u32 *mask = &s->s_feature_compat, m;
239 fputs("Filesystem features:", f);
240 for (i=0; i <3; i++,mask++) {
241 for (j=0,m=1; j < 32; j++, m<<=1) {
243 fprintf(f, " %s", e2p_feature2string(i, m));
253 void do_show_super_stats(int argc, char *argv[])
257 struct ext2_group_desc *gdp;
258 int c, header_only = 0;
259 const char *usage = "Usage: show_super [-h]";
263 optreset = 1; /* Makes BSD getopt happy */
265 while ((c = getopt (argc, argv, "h")) != EOF) {
271 com_err(argv[0], 0, usage);
275 if (optind != argc) {
276 com_err(argv[0], 0, usage);
279 if (check_fs_open(argv[0]))
283 list_super2(current_fs->super, out);
290 gdp = ¤t_fs->group_desc[0];
291 for (i = 0; i < current_fs->group_desc_count; i++, gdp++)
292 fprintf(out, " Group %2d: block bitmap at %d, "
293 "inode bitmap at %d, "
294 "inode table at %d\n"
298 i, gdp->bg_block_bitmap,
299 gdp->bg_inode_bitmap, gdp->bg_inode_table,
300 gdp->bg_free_blocks_count,
301 gdp->bg_free_blocks_count != 1 ? "blocks" : "block",
302 gdp->bg_free_inodes_count,
303 gdp->bg_free_inodes_count != 1 ? "inodes" : "inode",
304 gdp->bg_used_dirs_count,
305 gdp->bg_used_dirs_count != 1 ? "directories"
310 void do_dirty_filesys(int argc, char **argv)
312 if (check_fs_open(argv[0]))
314 if (check_fs_read_write(argv[0]))
317 if (argv[1] && !strcmp(argv[1], "-clean"))
318 current_fs->super->s_state |= EXT2_VALID_FS;
320 current_fs->super->s_state &= ~EXT2_VALID_FS;
321 ext2fs_mark_super_dirty(current_fs);
324 struct list_blocks_struct {
327 blk_t first_block, last_block;
328 int first_bcnt, last_bcnt;
332 static void finish_range(struct list_blocks_struct *lb)
334 if (lb->first_block == 0)
339 fprintf(lb->f, ", ");
340 if (lb->first_block == lb->last_block)
341 fprintf(lb->f, "(%d):%d", lb->first_bcnt, lb->first_block);
343 fprintf(lb->f, "(%d-%d):%d-%d", lb->first_bcnt,
344 lb->last_bcnt, lb->first_block, lb->last_block);
348 static int list_blocks_proc(ext2_filsys fs, blk_t *blocknr, int blockcnt,
351 struct list_blocks_struct *lb = (struct list_blocks_struct *) private;
356 * See if we can add on to the existing range (if it exists)
358 if (lb->first_block &&
359 (lb->last_block+1 == *blocknr) &&
360 (lb->last_bcnt+1 == blockcnt)) {
361 lb->last_block = *blocknr;
362 lb->last_bcnt = blockcnt;
369 lb->first_block = lb->last_block = *blocknr;
370 lb->first_bcnt = lb->last_bcnt = blockcnt;
374 * Not a normal block. Always force a new range.
380 fprintf(lb->f, ", ");
382 fprintf(lb->f, "(IND):%d", *blocknr);
383 else if (blockcnt == -2)
384 fprintf(lb->f, "(DIND):%d", *blocknr);
385 else if (blockcnt == -3)
386 fprintf(lb->f, "(TIND):%d", *blocknr);
391 static void dump_blocks(FILE *f, const char *prefix, ext2_ino_t inode)
393 struct list_blocks_struct lb;
395 fprintf(f, "%sBLOCKS:\n%s", prefix, prefix);
400 ext2fs_block_iterate(current_fs, inode, 0, NULL,
401 list_blocks_proc, (void *)&lb);
404 fprintf(f, "\n%sTOTAL: %d\n", prefix, lb.total);
409 void internal_dump_inode(FILE *out, const char *prefix,
410 ext2_ino_t inode_num, struct ext2_inode *inode,
415 int os = current_fs->super->s_creator_os;
417 if (LINUX_S_ISDIR(inode->i_mode)) i_type = "directory";
418 else if (LINUX_S_ISREG(inode->i_mode)) i_type = "regular";
419 else if (LINUX_S_ISLNK(inode->i_mode)) i_type = "symlink";
420 else if (LINUX_S_ISBLK(inode->i_mode)) i_type = "block special";
421 else if (LINUX_S_ISCHR(inode->i_mode)) i_type = "character special";
422 else if (LINUX_S_ISFIFO(inode->i_mode)) i_type = "FIFO";
423 else if (LINUX_S_ISSOCK(inode->i_mode)) i_type = "socket";
424 else i_type = "bad type";
425 fprintf(out, "%sInode: %u Type: %s ", prefix, inode_num, i_type);
426 fprintf(out, "%sMode: %04o Flags: 0x%x Generation: %u\n",
428 inode->i_mode & 0777, inode->i_flags, inode->i_generation);
429 fprintf(out, "%sUser: %5d Group: %5d Size: ",
430 prefix, inode->i_uid, inode->i_gid);
431 if (LINUX_S_ISDIR(inode->i_mode))
432 fprintf(out, "%d\n", inode->i_size);
434 __u64 i_size = (inode->i_size |
435 ((unsigned long long)inode->i_size_high << 32));
437 fprintf(out, "%lld\n", i_size);
439 if (current_fs->super->s_creator_os == EXT2_OS_HURD)
441 "%sFile ACL: %d Directory ACL: %d Translator: %d\n",
443 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0,
444 inode->osd1.hurd1.h_i_translator);
446 fprintf(out, "%sFile ACL: %d Directory ACL: %d\n",
448 inode->i_file_acl, LINUX_S_ISDIR(inode->i_mode) ? inode->i_dir_acl : 0);
449 fprintf(out, "%sLinks: %d Blockcount: %d\n",
450 prefix, inode->i_links_count, inode->i_blocks);
453 frag = inode->osd2.linux2.l_i_frag;
454 fsize = inode->osd2.linux2.l_i_fsize;
457 frag = inode->osd2.hurd2.h_i_frag;
458 fsize = inode->osd2.hurd2.h_i_fsize;
461 frag = inode->osd2.masix2.m_i_frag;
462 fsize = inode->osd2.masix2.m_i_fsize;
467 fprintf(out, "%sFragment: Address: %d Number: %d Size: %d\n",
468 prefix, inode->i_faddr, frag, fsize);
469 fprintf(out, "%sctime: 0x%08x -- %s", prefix, inode->i_ctime,
470 time_to_string(inode->i_ctime));
471 fprintf(out, "%satime: 0x%08x -- %s", prefix, inode->i_atime,
472 time_to_string(inode->i_atime));
473 fprintf(out, "%smtime: 0x%08x -- %s", prefix, inode->i_mtime,
474 time_to_string(inode->i_mtime));
476 fprintf(out, "%sdtime: 0x%08x -- %s", prefix, inode->i_dtime,
477 time_to_string(inode->i_dtime));
478 if (LINUX_S_ISLNK(inode->i_mode) && inode->i_blocks == 0)
479 fprintf(out, "%sFast_link_dest: %.*s\n", prefix,
480 (int) inode->i_size, (char *)inode->i_block);
481 else if (do_dump_blocks)
482 dump_blocks(out, prefix, inode_num);
485 static void dump_inode(ext2_ino_t inode_num, struct ext2_inode inode)
490 internal_dump_inode(out, "", inode_num, &inode, 1);
495 void do_stat(int argc, char *argv[])
498 struct ext2_inode inode_buf;
502 com_err(argv[0], 0, "Usage: stat <file>");
505 if (check_fs_open(argv[0]))
507 inode = string_to_inode(argv[1]);
511 retval = ext2fs_read_inode(current_fs, inode, &inode_buf);
514 com_err(argv[0], retval, "while trying to read inode %d", inode);
518 dump_inode(inode,inode_buf);
522 void do_chroot(int argc, char *argv[])
528 com_err(argv[0], 0, "Usage: chroot <file>");
531 if (check_fs_open(argv[0]))
533 inode = string_to_inode(argv[1]);
537 retval = ext2fs_check_directory(current_fs, inode);
539 com_err(argv[1], retval, "");
545 void do_clri(int argc, char *argv[])
549 struct ext2_inode inode_buf;
552 com_err(argv[0], 0, "Usage: clri <file>");
555 if (check_fs_open(argv[0]))
557 if (check_fs_read_write(argv[0]))
559 inode = string_to_inode(argv[1]);
563 retval = ext2fs_read_inode(current_fs, inode, &inode_buf);
565 com_err(argv[0], retval, "while trying to read inode %d",
569 memset(&inode_buf, 0, sizeof(inode_buf));
570 retval = ext2fs_write_inode(current_fs, inode, &inode_buf);
572 com_err(argv[0], retval, "while trying to write inode %d",
578 void do_freei(int argc, char *argv[])
583 com_err(argv[0], 0, "Usage: freei <file>");
586 if (check_fs_open(argv[0]))
588 if (check_fs_read_write(argv[0]))
590 inode = string_to_inode(argv[1]);
594 if (!ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
595 com_err(argv[0], 0, "Warning: inode already clear");
596 ext2fs_unmark_inode_bitmap(current_fs->inode_map,inode);
597 ext2fs_mark_ib_dirty(current_fs);
600 void do_seti(int argc, char *argv[])
605 com_err(argv[0], 0, "Usage: seti <file>");
608 if (check_fs_open(argv[0]))
610 if (check_fs_read_write(argv[0]))
612 inode = string_to_inode(argv[1]);
616 if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
617 com_err(argv[0], 0, "Warning: inode already set");
618 ext2fs_mark_inode_bitmap(current_fs->inode_map,inode);
619 ext2fs_mark_ib_dirty(current_fs);
622 void do_testi(int argc, char *argv[])
627 com_err(argv[0], 0, "Usage: testi <file>");
630 if (check_fs_open(argv[0]))
632 if (check_fs_bitmaps(argv[0]))
634 inode = string_to_inode(argv[1]);
638 if (ext2fs_test_inode_bitmap(current_fs->inode_map,inode))
639 printf("Inode %u is marked in use\n", inode);
641 printf("Inode %u is not in use\n", inode);
645 void do_freeb(int argc, char *argv[])
651 com_err(argv[0], 0, "Usage: freeb <block>");
654 if (check_fs_open(argv[0]))
656 if (check_fs_read_write(argv[0]))
658 block = strtoul(argv[1], &tmp, 0);
659 if (!block || *tmp) {
660 com_err(argv[0], 0, "No block 0");
663 if (!ext2fs_test_block_bitmap(current_fs->block_map,block))
664 com_err(argv[0], 0, "Warning: block already clear");
665 ext2fs_unmark_block_bitmap(current_fs->block_map,block);
666 ext2fs_mark_bb_dirty(current_fs);
669 void do_setb(int argc, char *argv[])
675 com_err(argv[0], 0, "Usage: setb <block>");
678 if (check_fs_open(argv[0]))
680 if (check_fs_read_write(argv[0]))
682 block = strtoul(argv[1], &tmp, 0);
683 if (!block || *tmp) {
684 com_err(argv[0], 0, "No block 0");
687 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
688 com_err(argv[0], 0, "Warning: block already set");
689 ext2fs_mark_block_bitmap(current_fs->block_map,block);
690 ext2fs_mark_bb_dirty(current_fs);
693 void do_testb(int argc, char *argv[])
699 com_err(argv[0], 0, "Usage: testb <block>");
702 if (check_fs_open(argv[0]))
704 if (check_fs_bitmaps(argv[0]))
706 block = strtoul(argv[1], &tmp, 0);
707 if (!block || *tmp) {
708 com_err(argv[0], 0, "No block 0");
711 if (ext2fs_test_block_bitmap(current_fs->block_map,block))
712 printf("Block %d marked in use\n", block);
713 else printf("Block %d not in use\n", block);
716 static void modify_u8(char *com, const char *prompt,
717 const char *format, __u8 *val)
723 sprintf(buf, format, *val);
724 printf("%30s [%s] ", prompt, buf);
725 fgets(buf, sizeof(buf), stdin);
726 if (buf[strlen (buf) - 1] == '\n')
727 buf[strlen (buf) - 1] = '\0';
730 v = strtoul(buf, &tmp, 0);
732 com_err(com, 0, "Bad value - %s", buf);
737 static void modify_u16(char *com, const char *prompt,
738 const char *format, __u16 *val)
744 sprintf(buf, format, *val);
745 printf("%30s [%s] ", prompt, buf);
746 fgets(buf, sizeof(buf), stdin);
747 if (buf[strlen (buf) - 1] == '\n')
748 buf[strlen (buf) - 1] = '\0';
751 v = strtoul(buf, &tmp, 0);
753 com_err(com, 0, "Bad value - %s", buf);
758 static void modify_u32(char *com, const char *prompt,
759 const char *format, __u32 *val)
765 sprintf(buf, format, *val);
766 printf("%30s [%s] ", prompt, buf);
767 fgets(buf, sizeof(buf), stdin);
768 if (buf[strlen (buf) - 1] == '\n')
769 buf[strlen (buf) - 1] = '\0';
772 v = strtoul(buf, &tmp, 0);
774 com_err(com, 0, "Bad value - %s", buf);
780 void do_modify_inode(int argc, char *argv[])
782 struct ext2_inode inode;
783 ext2_ino_t inode_num;
786 unsigned char *frag, *fsize;
788 int os = current_fs->super->s_creator_os;
789 const char *hex_format = "0x%x";
790 const char *octal_format = "0%o";
791 const char *decimal_format = "%d";
794 com_err(argv[0], 0, "Usage: modify_inode <file>");
797 if (check_fs_open(argv[0]))
799 if (check_fs_read_write(argv[0]))
802 inode_num = string_to_inode(argv[1]);
806 retval = ext2fs_read_inode(current_fs, inode_num, &inode);
808 com_err(argv[1], retval, "while trying to read inode %d",
813 modify_u16(argv[0], "Mode", octal_format, &inode.i_mode);
814 modify_u16(argv[0], "User ID", decimal_format, &inode.i_uid);
815 modify_u16(argv[0], "Group ID", decimal_format, &inode.i_gid);
816 modify_u32(argv[0], "Size", decimal_format, &inode.i_size);
817 modify_u32(argv[0], "Creation time", decimal_format, &inode.i_ctime);
818 modify_u32(argv[0], "Modification time", decimal_format, &inode.i_mtime);
819 modify_u32(argv[0], "Access time", decimal_format, &inode.i_atime);
820 modify_u32(argv[0], "Deletion time", decimal_format, &inode.i_dtime);
821 modify_u16(argv[0], "Link count", decimal_format, &inode.i_links_count);
822 modify_u32(argv[0], "Block count", decimal_format, &inode.i_blocks);
823 modify_u32(argv[0], "File flags", hex_format, &inode.i_flags);
824 modify_u32(argv[0], "Generation", hex_format, &inode.i_generation);
826 modify_u32(argv[0], "Reserved1", decimal_format, &inode.i_reserved1);
828 modify_u32(argv[0], "File acl", decimal_format, &inode.i_file_acl);
829 if (LINUX_S_ISDIR(inode.i_mode))
830 modify_u32(argv[0], "Directory acl", decimal_format, &inode.i_dir_acl);
832 modify_u32(argv[0], "High 32bits of size", decimal_format, &inode.i_size_high);
834 if (current_fs->super->s_creator_os == EXT2_OS_HURD)
835 modify_u32(argv[0], "Translator Block",
836 decimal_format, &inode.osd1.hurd1.h_i_translator);
838 modify_u32(argv[0], "Fragment address", decimal_format, &inode.i_faddr);
841 frag = &inode.osd2.linux2.l_i_frag;
842 fsize = &inode.osd2.linux2.l_i_fsize;
845 frag = &inode.osd2.hurd2.h_i_frag;
846 fsize = &inode.osd2.hurd2.h_i_fsize;
849 frag = &inode.osd2.masix2.m_i_frag;
850 fsize = &inode.osd2.masix2.m_i_fsize;
856 modify_u8(argv[0], "Fragment number", decimal_format, frag);
858 modify_u8(argv[0], "Fragment size", decimal_format, fsize);
860 for (i=0; i < EXT2_NDIR_BLOCKS; i++) {
861 sprintf(buf, "Direct Block #%d", i);
862 modify_u32(argv[0], buf, decimal_format, &inode.i_block[i]);
864 modify_u32(argv[0], "Indirect Block", decimal_format,
865 &inode.i_block[EXT2_IND_BLOCK]);
866 modify_u32(argv[0], "Double Indirect Block", decimal_format,
867 &inode.i_block[EXT2_DIND_BLOCK]);
868 modify_u32(argv[0], "Triple Indirect Block", decimal_format,
869 &inode.i_block[EXT2_TIND_BLOCK]);
870 retval = ext2fs_write_inode(current_fs, inode_num, &inode);
872 com_err(argv[1], retval, "while trying to write inode %d",
878 void do_change_working_dir(int argc, char *argv[])
884 com_err(argv[0], 0, "Usage: cd <file>");
887 if (check_fs_open(argv[0]))
890 inode = string_to_inode(argv[1]);
894 retval = ext2fs_check_directory(current_fs, inode);
896 com_err(argv[1], retval, "");
903 void do_print_working_directory(int argc, char *argv[])
906 char *pathname = NULL;
909 com_err(argv[0], 0, "Usage: print_working_directory");
912 if (check_fs_open(argv[0]))
915 retval = ext2fs_get_pathname(current_fs, cwd, 0, &pathname);
917 com_err(argv[0], retval,
918 "while trying to get pathname of cwd");
920 printf("[pwd] INODE: %6u PATH: %s\n", cwd, pathname);
922 retval = ext2fs_get_pathname(current_fs, root, 0, &pathname);
924 com_err(argv[0], retval,
925 "while trying to get pathname of root");
927 printf("[root] INODE: %6u PATH: %s\n", root, pathname);
932 static void make_link(char *sourcename, char *destname)
937 char *dest, *cp, *basename;
940 * Get the source inode
942 inode = string_to_inode(sourcename);
945 basename = strrchr(sourcename, '/');
949 basename = sourcename;
951 * Figure out the destination. First see if it exists and is
954 if (! (retval=ext2fs_namei(current_fs, root, cwd, destname, &dir)))
958 * OK, it doesn't exist. See if it is
959 * '<dir>/basename' or 'basename'
961 cp = strrchr(destname, '/');
964 dir = string_to_inode(destname);
974 retval = ext2fs_link(current_fs, dir, dest, inode, 0);
976 com_err("make_link", retval, "");
981 void do_link(int argc, char *argv[])
984 com_err(argv[0], 0, "Usage: link <source_file> <dest_name>");
987 if (check_fs_open(argv[0]))
990 make_link(argv[1], argv[2]);
993 static void unlink_file_by_name(char *filename)
999 basename = strrchr(filename, '/');
1002 dir = string_to_inode(filename);
1007 basename = filename;
1009 retval = ext2fs_unlink(current_fs, dir, basename, 0, 0);
1011 com_err("unlink_file_by_name", retval, "");
1015 void do_unlink(int argc, char *argv[])
1018 com_err(argv[0], 0, "Usage: unlink <pathname>");
1021 if (check_fs_open(argv[0]))
1024 unlink_file_by_name(argv[1]);
1027 void do_find_free_block(int argc, char *argv[])
1029 blk_t free_blk, goal;
1033 if ((argc > 2) || (argc==2 && *argv[1] == '?')) {
1034 com_err(argv[0], 0, "Usage: find_free_block [goal]");
1037 if (check_fs_open(argv[0]))
1041 goal = strtol(argv[1], &tmp, 0);
1043 com_err(argv[0], 0, "Bad goal - %s", argv[1]);
1048 goal = current_fs->super->s_first_data_block;
1050 retval = ext2fs_new_block(current_fs, goal, 0, &free_blk);
1052 com_err("ext2fs_new_block", retval, "");
1054 printf("Free block found: %d\n", free_blk);
1058 void do_find_free_inode(int argc, char *argv[])
1060 ext2_ino_t free_inode, dir;
1065 if (argc > 3 || (argc>1 && *argv[1] == '?')) {
1066 com_err(argv[0], 0, "Usage: find_free_inode [dir] [mode]");
1069 if (check_fs_open(argv[0]))
1073 dir = strtol(argv[1], &tmp, 0);
1075 com_err(argv[0], 0, "Bad dir - %s", argv[1]);
1082 mode = strtol(argv[2], &tmp, 0);
1084 com_err(argv[0], 0, "Bad mode - %s", argv[2]);
1090 retval = ext2fs_new_inode(current_fs, dir, mode, 0, &free_inode);
1092 com_err("ext2fs_new_inode", retval, "");
1094 printf("Free inode found: %u\n", free_inode);
1097 static errcode_t copy_file(int fd, ext2_ino_t newfile)
1099 ext2_file_t e2_file;
1101 unsigned int got, written;
1105 retval = ext2fs_file_open(current_fs, newfile,
1106 EXT2_FILE_WRITE, &e2_file);
1111 got = read(fd, buf, sizeof(buf));
1120 retval = ext2fs_file_write(e2_file, ptr,
1129 retval = ext2fs_file_close(e2_file);
1134 (void) ext2fs_file_close(e2_file);
1139 void do_write(int argc, char *argv[])
1142 struct stat statbuf;
1145 struct ext2_inode inode;
1148 if (check_fs_open(argv[0]))
1151 com_err(argv[0], 0, "Usage: write <nativefile> <newfile>");
1154 if (check_fs_read_write(argv[0]))
1156 fd = open(argv[1], O_RDONLY);
1158 com_err(argv[1], fd, "");
1161 if (fstat(fd, &statbuf) < 0) {
1162 com_err(argv[1], errno, "");
1167 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1169 com_err(argv[0], retval, "");
1173 group = ext2fs_group_of_ino(current_fs, newfile);
1174 current_fs->group_desc[group].bg_free_inodes_count--;
1175 current_fs->super->s_free_inodes_count--;
1176 ext2fs_mark_super_dirty(current_fs);
1177 printf("Allocated inode: %u\n", newfile);
1178 retval = ext2fs_link(current_fs, cwd, argv[2], newfile,
1181 com_err(argv[2], retval, "");
1185 if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1186 com_err(argv[0], 0, "Warning: inode already set");
1187 ext2fs_mark_inode_bitmap(current_fs->inode_map,newfile);
1188 ext2fs_mark_ib_dirty(current_fs);
1189 memset(&inode, 0, sizeof(inode));
1190 inode.i_mode = statbuf.st_mode;
1191 inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1192 inode.i_links_count = 1;
1193 inode.i_size = statbuf.st_size;
1194 retval = ext2fs_write_inode(current_fs, newfile, &inode);
1196 com_err(argv[0], retval, "while trying to write inode %d",
1201 if (LINUX_S_ISREG(inode.i_mode)) {
1202 retval = copy_file(fd, newfile);
1204 com_err("copy_file", retval, "");
1209 void do_mknod(int argc, char *argv[])
1211 unsigned long mode, major, minor, nr;
1214 struct ext2_inode inode;
1217 if (check_fs_open(argv[0]))
1219 if (argc < 3 || argv[2][1]) {
1220 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1223 mode = minor = major = 0;
1224 switch (argv[2][0]) {
1226 mode = LINUX_S_IFIFO;
1227 filetype = EXT2_FT_FIFO;
1231 mode = LINUX_S_IFCHR;
1232 filetype = EXT2_FT_CHRDEV;
1236 mode = LINUX_S_IFBLK;
1237 filetype = EXT2_FT_BLKDEV;
1245 major = strtoul(argv[3], argv+3, 0);
1246 minor = strtoul(argv[4], argv+4, 0);
1247 if (major > 255 || minor > 255 || argv[3][0] || argv[4][0])
1251 com_err(argv[0], 0, "Usage: mknod <name> [p| [c|b] <major> <minor>]");
1254 if (check_fs_read_write(argv[0]))
1256 retval = ext2fs_new_inode(current_fs, cwd, 010755, 0, &newfile);
1258 com_err(argv[0], retval, "");
1261 printf("Allocated inode: %u\n", newfile);
1262 retval = ext2fs_link(current_fs, cwd, argv[1], newfile, filetype);
1264 if (retval == EXT2_ET_DIR_NO_SPACE) {
1265 retval = ext2fs_expand_dir(current_fs, cwd);
1267 retval = ext2fs_link(current_fs, cwd,
1272 com_err(argv[1], retval, "");
1276 if (ext2fs_test_inode_bitmap(current_fs->inode_map,newfile))
1277 com_err(argv[0], 0, "Warning: inode already set");
1278 ext2fs_mark_inode_bitmap(current_fs->inode_map, newfile);
1279 ext2fs_mark_ib_dirty(current_fs);
1280 memset(&inode, 0, sizeof(inode));
1281 inode.i_mode = mode;
1282 inode.i_atime = inode.i_ctime = inode.i_mtime = time(NULL);
1283 inode.i_block[0] = major*256+minor;
1284 inode.i_links_count = 1;
1285 retval = ext2fs_write_inode(current_fs, newfile, &inode);
1287 com_err(argv[0], retval, "while trying to write inode %d", inode);
1292 void do_mkdir(int argc, char *argv[])
1299 if (check_fs_open(argv[0]))
1303 com_err(argv[0], 0, "Usage: mkdir <file>");
1307 if (check_fs_read_write(argv[0]))
1310 cp = strrchr(argv[1], '/');
1313 parent = string_to_inode(argv[1]);
1315 com_err(argv[1], ENOENT, "");
1325 retval = ext2fs_mkdir(current_fs, parent, 0, name);
1327 com_err("ext2fs_mkdir", retval, "");
1333 void do_rmdir(int argc, char *argv[])
1335 printf("Unimplemented\n");
1339 static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
1340 int blockcnt, void *private)
1342 printf("%d ", *blocknr);
1343 ext2fs_unmark_block_bitmap(fs->block_map,*blocknr);
1347 static void kill_file_by_inode(ext2_ino_t inode)
1349 struct ext2_inode inode_buf;
1351 ext2fs_read_inode(current_fs, inode, &inode_buf);
1352 inode_buf.i_dtime = time(NULL);
1353 ext2fs_write_inode(current_fs, inode, &inode_buf);
1355 printf("Kill file by inode %u\n", inode);
1356 ext2fs_block_iterate(current_fs, inode, 0, NULL,
1357 release_blocks_proc, NULL);
1359 ext2fs_unmark_inode_bitmap(current_fs->inode_map, inode);
1361 ext2fs_mark_bb_dirty(current_fs);
1362 ext2fs_mark_ib_dirty(current_fs);
1366 void do_kill_file(int argc, char *argv[])
1368 ext2_ino_t inode_num;
1371 com_err(argv[0], 0, "Usage: kill_file <file>");
1374 if (check_fs_open(argv[0]))
1377 if (check_fs_read_write(argv[0]))
1380 inode_num = string_to_inode(argv[1]);
1382 com_err(argv[0], 0, "Cannot find file");
1385 kill_file_by_inode(inode_num);
1388 void do_rm(int argc, char *argv[])
1391 ext2_ino_t inode_num;
1392 struct ext2_inode inode;
1395 com_err(argv[0], 0, "Usage: rm <filename>");
1398 if (check_fs_open(argv[0]))
1401 if (check_fs_read_write(argv[0]))
1404 retval = ext2fs_namei(current_fs, root, cwd, argv[1], &inode_num);
1406 com_err(argv[0], retval, "while trying to resolve filename");
1410 retval = ext2fs_read_inode(current_fs,inode_num,&inode);
1412 com_err(argv[0], retval, "while reading file's inode");
1416 if (LINUX_S_ISDIR(inode.i_mode)) {
1417 com_err(argv[0], 0, "file is a directory");
1421 --inode.i_links_count;
1422 retval = ext2fs_write_inode(current_fs,inode_num,&inode);
1424 com_err(argv[0], retval, "while writing inode");
1428 unlink_file_by_name(argv[1]);
1429 if (inode.i_links_count == 0)
1430 kill_file_by_inode(inode_num);
1433 void do_show_debugfs_params(int argc, char *argv[])
1438 fprintf(out, "Open mode: read-%s\n",
1439 current_fs->flags & EXT2_FLAG_RW ? "write" : "only");
1440 fprintf(out, "Filesystem in use: %s\n",
1441 current_fs ? current_fs->device_name : "--none--");
1444 void do_expand_dir(int argc, char *argv[])
1450 com_err(argv[0], 0, "Usage: expand_dir <file>");
1453 if (check_fs_open(argv[0]))
1455 inode = string_to_inode(argv[1]);
1459 retval = ext2fs_expand_dir(current_fs, inode);
1461 com_err("ext2fs_expand_dir", retval, "");
1465 void do_features(int argc, char *argv[])
1469 if (check_fs_open(argv[0]))
1472 if ((argc != 1) && check_fs_read_write(argv[0]))
1474 for (i=1; i < argc; i++) {
1475 if (e2p_edit_feature(argv[i],
1476 ¤t_fs->super->s_feature_compat, 0))
1477 com_err(argv[0], 0, "Unknown feature: %s\n",
1480 ext2fs_mark_super_dirty(current_fs);
1482 print_features(current_fs->super, stdout);
1485 static int source_file(const char *cmd_file, int sci_idx)
1490 int exit_status = 0;
1493 if (strcmp(cmd_file, "-") == 0)
1496 f = fopen(cmd_file, "r");
1502 setbuf(stdout, NULL);
1503 setbuf(stderr, NULL);
1505 if (fgets(buf, sizeof(buf), f) == NULL)
1507 cp = strchr(buf, '\n');
1510 cp = strchr(buf, '\r');
1513 printf("debugfs: %s\n", buf);
1514 retval = ss_execute_line(sci_idx, buf);
1516 ss_perror(sci_idx, retval, buf);
1523 int main(int argc, char **argv)
1527 const char *usage = "Usage: debugfs [-b blocksize] [-s superblock] [-f cmd_file] [-R request] [-V] [[-w] [-c] device]";
1531 int exit_status = 0;
1533 blk_t superblock = 0;
1534 blk_t blocksize = 0;
1535 int catastrophic = 0;
1538 initialize_ext2_error_table();
1539 fprintf (stderr, "debugfs %s, %s for EXT2 FS %s, %s\n",
1540 E2FSPROGS_VERSION, E2FSPROGS_DATE,
1541 EXT2FS_VERSION, EXT2FS_DATE);
1543 while ((c = getopt (argc, argv, "iwcR:f:b:s:V")) != EOF) {
1552 open_flags |= EXT2_FLAG_IMAGE_FILE;
1555 open_flags |= EXT2_FLAG_RW;
1558 blocksize = strtoul(optarg, &tmp, 0);
1561 "Bad block size - %s", optarg);
1566 superblock = strtoul(optarg, &tmp, 0);
1569 "Bad superblock number - %s", optarg);
1577 /* Print version number and exit */
1578 fprintf(stderr, "\tUsing %s\n",
1579 error_message(EXT2_ET_BASE));
1582 com_err(argv[0], 0, usage);
1587 open_filesystem(argv[optind], open_flags,
1588 superblock, blocksize, catastrophic);
1590 sci_idx = ss_create_invocation("debugfs", "0.0", (char *) NULL,
1591 &debug_cmds, &retval);
1593 ss_perror(sci_idx, retval, "creating invocation");
1597 (void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
1599 ss_perror(sci_idx, retval, "adding standard requests");
1604 retval = ss_execute_line(sci_idx, request);
1606 ss_perror(sci_idx, retval, request);
1609 } else if (cmd_file) {
1610 exit_status = source_file(cmd_file, sci_idx);