2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which blocks are in use. (block_found_map)
27 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
28 * - The data blocks of the directory inodes. (dir_map)
30 * Pass 1 is designed to stash away enough information so that the
31 * other passes should not need to read in the inode information
32 * during the normal course of a filesystem check. (Althogh if an
33 * inconsistency is detected, other passes may need to read in an
36 * Note that pass 1B will be invoked if there are any duplicate blocks
40 #define _GNU_SOURCE 1 /* get strnlen() */
49 #include <ext2fs/ext2_ext_attr.h>
53 #ifdef NO_INLINE_FUNCS
56 #define _INLINE_ inline
61 static int process_block(ext2_filsys fs, blk64_t *blocknr,
62 e2_blkcnt_t blockcnt, blk64_t ref_blk,
63 int ref_offset, void *priv_data);
64 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
65 e2_blkcnt_t blockcnt, blk64_t ref_blk,
66 int ref_offset, void *priv_data);
67 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
69 static void mark_table_blocks(e2fsck_t ctx);
70 static void alloc_bb_map(e2fsck_t ctx);
71 static void alloc_imagic_map(e2fsck_t ctx);
72 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
73 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino);
74 static void handle_fs_bad_blocks(e2fsck_t ctx);
75 static void process_inodes(e2fsck_t ctx, char *block_buf);
76 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
77 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
78 dgrp_t group, void * priv_data);
79 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
80 char *block_buf, int adjust_sign);
81 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
83 struct process_block_struct {
85 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
86 fragmented:1, compressed:1, bbcheck:1,
90 e2_blkcnt_t last_block;
91 e2_blkcnt_t last_init_lblock;
92 e2_blkcnt_t last_db_block;
93 int num_illegal_blocks;
94 blk64_t previous_block;
95 struct ext2_inode *inode;
96 struct problem_context *pctx;
97 ext2fs_block_bitmap fs_meta_blocks;
100 struct extent_tree_info eti;
103 struct process_inode_block {
105 struct ext2_inode inode;
108 struct scan_callback_struct {
114 * For the inodes to process list.
116 static struct process_inode_block *inodes_to_process;
117 static int process_inode_count;
119 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
120 EXT2_MIN_BLOCK_LOG_SIZE + 1];
123 * Free all memory allocated by pass1 in preparation for restarting
126 static void unwind_pass1(ext2_filsys fs EXT2FS_ATTR((unused)))
128 ext2fs_free_mem(&inodes_to_process);
129 inodes_to_process = 0;
133 * Check to make sure a device inode is real. Returns 1 if the device
134 * checks out, 0 if not.
136 * Note: this routine is now also used to check FIFO's and Sockets,
137 * since they have the same requirement; the i_block fields should be
140 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
141 struct ext2_inode *inode)
146 * If the index flag is set, then this is a bogus
149 if (inode->i_flags & EXT2_INDEX_FL)
153 * We should be able to do the test below all the time, but
154 * because the kernel doesn't forcibly clear the device
155 * inode's additional i_block fields, there are some rare
156 * occasions when a legitimate device inode will have non-zero
157 * additional i_block fields. So for now, we only complain
158 * when the immutable flag is set, which should never happen
159 * for devices. (And that's when the problem is caused, since
160 * you can't set or clear immutable flags for devices.) Once
161 * the kernel has been fixed we can change this...
163 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
164 for (i=4; i < EXT2_N_BLOCKS; i++)
165 if (inode->i_block[i])
172 * Check to make sure a symlink inode is real. Returns 1 if the symlink
173 * checks out, 0 if not.
175 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
176 struct ext2_inode *inode, char *buf)
181 ext2_extent_handle_t handle;
182 struct ext2_extent_info info;
183 struct ext2fs_extent extent;
185 if ((inode->i_size_high || inode->i_size == 0) ||
186 (inode->i_flags & EXT2_INDEX_FL))
189 if (inode->i_flags & EXT4_EXTENTS_FL) {
190 if (inode->i_flags & EXT4_INLINE_DATA_FL)
192 if (inode->i_size > fs->blocksize)
194 if (ext2fs_extent_open2(fs, ino, inode, &handle))
197 if (ext2fs_extent_get_info(handle, &info) ||
198 (info.num_entries != 1) ||
199 (info.max_depth != 0))
201 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent) ||
202 (extent.e_lblk != 0) ||
203 (extent.e_len != 1) ||
204 (extent.e_pblk < fs->super->s_first_data_block) ||
205 (extent.e_pblk >= ext2fs_blocks_count(fs->super)))
209 ext2fs_extent_free(handle);
213 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
216 if (ext2fs_inline_data_size(fs, ino, &inline_size))
218 if (inode->i_size != inline_size)
224 blocks = ext2fs_inode_data_blocks2(fs, inode);
226 if (inode->i_flags & EXT4_INLINE_DATA_FL)
228 if ((inode->i_size >= fs->blocksize) ||
229 (blocks != fs->blocksize >> 9) ||
230 (inode->i_block[0] < fs->super->s_first_data_block) ||
231 (inode->i_block[0] >= ext2fs_blocks_count(fs->super)))
234 for (i = 1; i < EXT2_N_BLOCKS; i++)
235 if (inode->i_block[i])
238 if (io_channel_read_blk64(fs->io, inode->i_block[0], 1, buf))
241 if (inode->i_flags & EXT4_ENCRYPT_FL) {
242 len = ext2fs_le32_to_cpu(*((__u32 *)buf)) + 4;
244 len = strnlen(buf, fs->blocksize);
246 if (len == fs->blocksize)
248 } else if (inode->i_flags & EXT4_INLINE_DATA_FL) {
249 char *inline_buf = NULL;
250 size_t inline_sz = 0;
252 if (ext2fs_inline_data_size(fs, ino, &inline_sz))
254 if (inode->i_size != inline_sz)
256 if (ext2fs_get_mem(inline_sz + 1, &inline_buf))
259 if (ext2fs_inline_data_get(fs, ino, inode, inline_buf, NULL))
261 inline_buf[inline_sz] = 0;
262 len = strnlen(inline_buf, inline_sz);
263 if (len != inline_sz)
267 ext2fs_free_mem(&inline_buf);
270 if (inode->i_size >= sizeof(inode->i_block))
273 len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
274 if (len == sizeof(inode->i_block))
277 if (len != inode->i_size)
278 if ((inode->i_flags & EXT4_ENCRYPT_FL) == 0)
284 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
286 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
287 static void check_extents_inlinedata(e2fsck_t ctx,
288 struct problem_context *pctx)
290 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
293 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
296 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
297 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
299 #undef BAD_SPECIAL_FLAGS
302 * If the immutable (or append-only) flag is set on the inode, offer
305 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
306 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
308 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
311 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
314 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
315 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
319 * If device, fifo or socket, check size is zero -- if not offer to
322 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
324 struct ext2_inode *inode = pctx->inode;
326 if (EXT2_I_SIZE(inode) == 0)
329 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
332 ext2fs_inode_size_set(ctx->fs, inode, 0);
333 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
336 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
338 struct ext2_super_block *sb = ctx->fs->super;
339 struct ext2_inode_large *inode;
340 struct ext2_ext_attr_entry *entry;
341 char *start, *header;
342 unsigned int storage_size, remain;
343 problem_t problem = 0;
346 inode = (struct ext2_inode_large *) pctx->inode;
347 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
348 inode->i_extra_isize;
349 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
350 inode->i_extra_isize;
351 start = header + sizeof(__u32);
352 entry = (struct ext2_ext_attr_entry *) start;
354 /* scan all entry's headers first */
356 /* take finish entry 0UL into account */
357 remain = storage_size - sizeof(__u32);
359 region = region_create(0, storage_size);
361 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
363 ctx->flags |= E2F_FLAG_ABORT;
366 if (region_allocate(region, 0, sizeof(__u32))) {
367 problem = PR_1_INODE_EA_ALLOC_COLLISION;
371 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
372 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
375 if (region_allocate(region, (char *)entry - (char *)header,
376 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
377 problem = PR_1_INODE_EA_ALLOC_COLLISION;
381 /* header eats this space */
382 remain -= sizeof(struct ext2_ext_attr_entry);
384 /* is attribute name valid? */
385 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
386 pctx->num = entry->e_name_len;
387 problem = PR_1_ATTR_NAME_LEN;
391 /* attribute len eats this space */
392 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
394 /* check value size */
395 if (entry->e_value_size > remain) {
396 pctx->num = entry->e_value_size;
397 problem = PR_1_ATTR_VALUE_SIZE;
401 /* e_value_block must be 0 in inode's ea */
402 if (entry->e_value_block != 0) {
403 pctx->num = entry->e_value_block;
404 problem = PR_1_ATTR_VALUE_BLOCK;
408 if (entry->e_value_size &&
409 region_allocate(region, sizeof(__u32) + entry->e_value_offs,
410 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
411 problem = PR_1_INODE_EA_ALLOC_COLLISION;
415 hash = ext2fs_ext_attr_hash_entry(entry,
416 start + entry->e_value_offs);
418 /* e_hash may be 0 in older inode's ea */
419 if (entry->e_hash != 0 && entry->e_hash != hash) {
420 pctx->num = entry->e_hash;
421 problem = PR_1_ATTR_HASH;
425 remain -= entry->e_value_size;
427 entry = EXT2_EXT_ATTR_NEXT(entry);
430 if (region_allocate(region, (char *)entry - (char *)header,
432 problem = PR_1_INODE_EA_ALLOC_COLLISION;
439 * it seems like a corruption. it's very unlikely we could repair
440 * EA(s) in automatic fashion -bzzz
442 if (problem == 0 || !fix_problem(ctx, problem, pctx))
445 /* simply remove all possible EA(s) */
446 *((__u32 *)header) = 0UL;
447 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
448 EXT2_INODE_SIZE(sb), "pass1");
451 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx)
453 struct ext2_super_block *sb = ctx->fs->super;
454 struct ext2_inode_large *inode;
458 inode = (struct ext2_inode_large *) pctx->inode;
459 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
460 /* this isn't large inode. so, nothing to check */
465 printf("inode #%u, i_extra_size %d\n", pctx->ino,
466 inode->i_extra_isize);
468 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
469 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
470 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
472 * For now we will allow i_extra_isize to be 0, but really
473 * implementations should never allow i_extra_isize to be 0
475 if (inode->i_extra_isize &&
476 (inode->i_extra_isize < min || inode->i_extra_isize > max)) {
477 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
479 inode->i_extra_isize = min;
480 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
481 EXT2_INODE_SIZE(sb), "pass1");
485 /* check if there is no place for an EA header */
486 if (inode->i_extra_isize >= max - sizeof(__u32))
489 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
490 inode->i_extra_isize);
491 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
492 /* it seems inode has an extended attribute(s) in body */
493 check_ea_in_inode(ctx, pctx);
498 * Check to see if the inode might really be a directory, despite i_mode
500 * This is a lot of complexity for something for which I'm not really
501 * convinced happens frequently in the wild. If for any reason this
502 * causes any problems, take this code out.
503 * [tytso:20070331.0827EDT]
505 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
508 struct ext2_inode *inode = pctx->inode;
509 struct ext2_dir_entry *dirent;
512 unsigned int i, rec_len, not_device = 0;
517 * If the mode looks OK, we believe it. If the first block in
518 * the i_block array is 0, this cannot be a directory. If the
519 * inode is extent-mapped, it is still the case that the latter
520 * cannot be 0 - the magic number in the extent header would make
523 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
524 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
528 * Check the block numbers in the i_block array for validity:
529 * zero blocks are skipped (but the first one cannot be zero -
530 * see above), other blocks are checked against the first and
531 * max data blocks (from the the superblock) and against the
532 * block bitmap. Any invalid block found means this cannot be
535 * If there are non-zero blocks past the fourth entry, then
536 * this cannot be a device file: we remember that for the next
539 * For extent mapped files, we don't do any sanity checking:
540 * just try to get the phys block of logical block 0 and run
543 * For inline data files, we just try to get the size of inline
544 * data. If it's true, we will treat it as a directory.
547 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
548 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
549 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
552 unsigned int rec_len;
553 struct ext2_dir_entry de;
555 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
558 * If the size isn't a multiple of 4, it's probably not a
564 * If the first 10 bytes don't look like a directory entry,
565 * it's probably not a directory.
567 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
568 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
569 EXT2_DIR_REC_LEN(0));
570 dotdot = ext2fs_le32_to_cpu(dotdot);
571 de.inode = ext2fs_le32_to_cpu(de.inode);
572 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
573 ext2fs_get_rec_len(ctx->fs, &de, &rec_len);
574 if (dotdot >= ctx->fs->super->s_inodes_count ||
575 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
576 dotdot != EXT2_ROOT_INO) ||
577 de.inode >= ctx->fs->super->s_inodes_count ||
578 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
580 rec_len > EXT4_MIN_INLINE_DATA_SIZE -
581 EXT4_INLINE_DATA_DOTDOT_SIZE)
583 /* device files never have a "system.data" entry */
585 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
587 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
590 /* device files are never extent mapped */
593 for (i=0; i < EXT2_N_BLOCKS; i++) {
594 blk = inode->i_block[i];
600 if (blk < ctx->fs->super->s_first_data_block ||
601 blk >= ext2fs_blocks_count(ctx->fs->super) ||
602 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
604 return; /* Invalid block, can't be dir */
606 blk = inode->i_block[0];
610 * If the mode says this is a device file and the i_links_count field
611 * is sane and we have not ruled it out as a device file previously,
612 * we declare it a device file, not a directory.
614 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
615 (inode->i_links_count == 1) && !not_device)
618 /* read the first block */
619 ehandler_operation(_("reading directory block"));
620 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
621 ehandler_operation(0);
625 dirent = (struct ext2_dir_entry *) buf;
626 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
629 if ((ext2fs_dirent_name_len(dirent) != 1) ||
630 (dirent->name[0] != '.') ||
631 (dirent->inode != pctx->ino) ||
634 (rec_len >= ctx->fs->blocksize - 12))
637 dirent = (struct ext2_dir_entry *) (buf + rec_len);
638 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
641 if ((ext2fs_dirent_name_len(dirent) != 2) ||
642 (dirent->name[0] != '.') ||
643 (dirent->name[1] != '.') ||
649 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
650 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
651 e2fsck_write_inode_full(ctx, pctx->ino, inode,
652 EXT2_INODE_SIZE(ctx->fs->super),
653 "check_is_really_dir");
657 void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
660 unsigned int threshold;
668 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
670 profile_get_uint(ctx->profile, "scratch_files",
671 "numdirs_threshold", 0, 0, &threshold);
672 profile_get_boolean(ctx->profile, "scratch_files",
673 "icount", 0, 1, &enable);
675 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
677 num_dirs = 1024; /* Guess */
679 if (!enable || !tdb_dir || access(tdb_dir, W_OK) ||
680 (threshold && num_dirs <= threshold))
683 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir, flags, ret);
688 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
690 struct problem_context *pctx)
693 struct ext2_inode_large inode;
696 * Reread inode. If we don't see checksum error, then this inode
697 * has been fixed elsewhere.
699 ctx->stashed_ino = 0;
700 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
702 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
708 * Checksum still doesn't match. That implies that the inode passes
709 * all the sanity checks, so maybe the checksum is simply corrupt.
710 * See if the user will go for fixing that.
712 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
715 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
720 static void reserve_block_for_root_repair(e2fsck_t ctx)
724 ext2_filsys fs = ctx->fs;
726 ctx->root_repair_block = 0;
727 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
730 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
733 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
734 ctx->root_repair_block = blk;
737 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
741 ext2_filsys fs = ctx->fs;
742 static const char name[] = "lost+found";
745 ctx->lnf_repair_block = 0;
746 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
749 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
752 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
753 ctx->lnf_repair_block = blk;
756 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
760 struct ext2_xattr_handle *handle;
763 retval = ext2fs_xattrs_open(fs, ino, &handle);
767 retval = ext2fs_xattrs_read(handle);
771 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
776 (void) ext2fs_xattrs_close(&handle);
780 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
781 struct problem_context *pctx,
788 * If the inode failed the checksum and the user didn't
789 * clear the inode, test the checksum again -- if it still
790 * fails, ask the user if the checksum should be corrected.
792 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
794 ctx->flags |= E2F_FLAG_ABORT;
796 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
798 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
799 if ((ctx)->flags & E2F_FLAG_ABORT) \
803 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
808 for (i = 0; i < EXT2_N_BLOCKS; i++) {
809 x = inode->i_block[i];
810 #ifdef WORDS_BIGENDIAN
811 x = ext2fs_swab32(x);
813 if (x >= ext2fs_blocks_count(fs->super))
821 * Figure out what to do with an inode that has both extents and inline data
822 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
824 static int fix_inline_data_extents_file(e2fsck_t ctx,
826 struct ext2_inode *inode,
828 struct problem_context *pctx)
830 size_t max_inline_ea_size;
831 ext2_filsys fs = ctx->fs;
834 /* Both feature flags not set? Just run the regular checks */
835 if (!ext2fs_has_feature_extents(fs->super) &&
836 !ext2fs_has_feature_inline_data(fs->super))
839 /* Clear both flags if it's a special file */
840 if (LINUX_S_ISCHR(inode->i_mode) ||
841 LINUX_S_ISBLK(inode->i_mode) ||
842 LINUX_S_ISFIFO(inode->i_mode) ||
843 LINUX_S_ISSOCK(inode->i_mode)) {
844 check_extents_inlinedata(ctx, pctx);
848 /* If it looks like an extent tree, try to clear inlinedata */
849 if (ext2fs_extent_header_verify(inode->i_block,
850 sizeof(inode->i_block)) == 0 &&
851 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
852 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
857 /* If it looks short enough to be inline data, try to clear extents */
858 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
859 max_inline_ea_size = inode_size -
860 (EXT2_GOOD_OLD_INODE_SIZE +
861 ((struct ext2_inode_large *)inode)->i_extra_isize);
863 max_inline_ea_size = 0;
864 if (EXT2_I_SIZE(inode) <
865 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
866 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
867 inode->i_flags &= ~EXT4_EXTENTS_FL;
873 * Too big for inline data, but no evidence of extent tree -
874 * maybe it's a block map file? If the mappings all look valid?
876 if (could_be_block_map(fs, inode) &&
877 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
878 #ifdef WORDS_BIGENDIAN
881 for (i = 0; i < EXT2_N_BLOCKS; i++)
882 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
885 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
890 /* Oh well, just clear the busted inode. */
891 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
892 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
898 e2fsck_write_inode(ctx, ino, inode, "pass1");
903 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
905 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
906 dgrp_t start = *group, grp;
907 blk64_t blocks_to_read = 0;
908 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
910 if (ctx->readahead_kb == 0)
913 /* Keep iterating groups until we have enough to readahead */
914 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
915 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
916 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
918 inodes_in_group = ctx->fs->super->s_inodes_per_group -
919 ext2fs_bg_itable_unused(ctx->fs, grp);
920 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
922 if (blocks_to_read * ctx->fs->blocksize >
923 ctx->readahead_kb * 1024)
927 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
930 ctx->readahead_kb /= 2;
936 /* Error; disable itable readahead */
937 *group = ctx->fs->group_desc_count;
938 *next_ino = ctx->fs->super->s_inodes_count;
941 * Don't do more readahead until we've reached the first inode
942 * of the last inode scan buffer block for the last group.
945 inodes_per_buffer = (ctx->inode_buffer_blocks ?
946 ctx->inode_buffer_blocks :
947 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
949 EXT2_INODE_SIZE(ctx->fs->super);
951 *next_ino = inodes_in_group -
952 (inodes_in_group % inodes_per_buffer) + 1 +
953 (grp * ctx->fs->super->s_inodes_per_group);
958 * Check if the passed ino is one of the used superblock quota inodes.
960 * Before the quota inodes were journaled, older superblock quota inodes
961 * were just regular files in the filesystem and not reserved inodes. This
962 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
963 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
965 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
967 enum quota_type qtype;
969 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
970 if (*quota_sb_inump(sb, qtype) == ino)
977 * Check if the passed ino is one of the reserved quota inodes.
978 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
979 * inodes. These inodes may or may not be in use by the quota feature.
981 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
983 enum quota_type qtype;
985 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
986 if (quota_type2inum(qtype, fs->super) == ino)
992 void e2fsck_pass1(e2fsck_t ctx)
996 ext2_filsys fs = ctx->fs;
998 struct ext2_inode *inode = NULL;
999 ext2_inode_scan scan = NULL;
1000 char *block_buf = NULL;
1001 #ifdef RESOURCE_TRACK
1002 struct resource_track rtrack;
1004 unsigned char frag, fsize;
1005 struct problem_context pctx;
1006 struct scan_callback_struct scan_struct;
1007 struct ext2_super_block *sb = ctx->fs->super;
1009 unsigned int save_type;
1010 int imagic_fs, extent_fs, inlinedata_fs;
1011 int low_dtime_check = 1;
1012 int inode_size = EXT2_INODE_SIZE(fs->super);
1013 int failed_csum = 0;
1014 ext2_ino_t ino_threshold = 0;
1015 dgrp_t ra_group = 0;
1017 init_resource_track(&rtrack, ctx->fs->io);
1018 clear_problem_context(&pctx);
1020 /* If we can do readahead, figure out how many groups to pull in. */
1021 if (!e2fsck_can_readahead(ctx->fs))
1022 ctx->readahead_kb = 0;
1023 else if (ctx->readahead_kb == ~0ULL)
1024 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1025 pass1_readahead(ctx, &ra_group, &ino_threshold);
1027 if (!(ctx->options & E2F_OPT_PREEN))
1028 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1030 if (ext2fs_has_feature_dir_index(fs->super) &&
1031 !(ctx->options & E2F_OPT_NO)) {
1032 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1033 ctx->dirs_to_hash = 0;
1037 mtrace_print("Pass 1");
1040 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1042 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1043 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1044 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1045 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1046 max_sizes = (max_sizes * (1UL << i));
1047 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1051 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1052 extent_fs = ext2fs_has_feature_extents(sb);
1053 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1056 * Allocate bitmaps structures
1058 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1059 EXT2FS_BMAP64_RBTREE,
1061 &ctx->inode_used_map);
1064 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1065 ctx->flags |= E2F_FLAG_ABORT;
1068 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1069 _("directory inode map"),
1070 EXT2FS_BMAP64_AUTODIR,
1071 "inode_dir_map", &ctx->inode_dir_map);
1074 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1075 ctx->flags |= E2F_FLAG_ABORT;
1078 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1079 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1080 "inode_reg_map", &ctx->inode_reg_map);
1083 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1084 ctx->flags |= E2F_FLAG_ABORT;
1087 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1088 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1089 "block_found_map", &ctx->block_found_map);
1092 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1093 ctx->flags |= E2F_FLAG_ABORT;
1096 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1097 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1098 "block_metadata_map", &ctx->block_metadata_map);
1101 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1102 ctx->flags |= E2F_FLAG_ABORT;
1105 e2fsck_setup_tdb_icount(ctx, 0, &ctx->inode_link_info);
1106 if (!ctx->inode_link_info) {
1107 e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE,
1108 "inode_link_info", &save_type);
1109 pctx.errcode = ext2fs_create_icount2(fs, 0, 0, 0,
1110 &ctx->inode_link_info);
1111 fs->default_bitmap_type = save_type;
1115 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1116 ctx->flags |= E2F_FLAG_ABORT;
1119 inode = (struct ext2_inode *)
1120 e2fsck_allocate_memory(ctx, inode_size, "scratch inode");
1122 inodes_to_process = (struct process_inode_block *)
1123 e2fsck_allocate_memory(ctx,
1124 (ctx->process_inode_size *
1125 sizeof(struct process_inode_block)),
1126 "array of inodes to process");
1127 process_inode_count = 0;
1129 pctx.errcode = ext2fs_init_dblist(fs, 0);
1131 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1132 ctx->flags |= E2F_FLAG_ABORT;
1137 * If the last orphan field is set, clear it, since the pass1
1138 * processing will automatically find and clear the orphans.
1139 * In the future, we may want to try using the last_orphan
1140 * linked list ourselves, but for now, we clear it so that the
1141 * ext3 mount code won't get confused.
1143 if (!(ctx->options & E2F_OPT_READONLY)) {
1144 if (fs->super->s_last_orphan) {
1145 fs->super->s_last_orphan = 0;
1146 ext2fs_mark_super_dirty(fs);
1150 mark_table_blocks(ctx);
1151 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1152 &ctx->block_found_map);
1154 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1155 ctx->flags |= E2F_FLAG_ABORT;
1158 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1159 "block interate buffer");
1160 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1161 e2fsck_use_inode_shortcuts(ctx, 1);
1162 e2fsck_intercept_block_allocations(ctx);
1163 old_op = ehandler_operation(_("opening inode scan"));
1164 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1166 ehandler_operation(old_op);
1168 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1169 ctx->flags |= E2F_FLAG_ABORT;
1172 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1173 EXT2_SF_WARN_GARBAGE_INODES, 0);
1174 ctx->stashed_inode = inode;
1175 scan_struct.ctx = ctx;
1176 scan_struct.block_buf = block_buf;
1177 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1178 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1179 ctx->fs->group_desc_count)))
1181 if ((fs->super->s_wtime < fs->super->s_inodes_count) ||
1182 (fs->super->s_mtime < fs->super->s_inodes_count) ||
1183 (fs->super->s_mkfs_time &&
1184 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1185 low_dtime_check = 0;
1187 if (ext2fs_has_feature_mmp(fs->super) &&
1188 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1189 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1190 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1191 fs->super->s_mmp_block);
1193 /* Set up ctx->lost_and_found if possible */
1194 (void) e2fsck_get_lost_and_found(ctx, 0);
1197 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1198 if (e2fsck_mmp_update(fs))
1199 fatal_error(ctx, 0);
1201 old_op = ehandler_operation(_("getting next inode from scan"));
1202 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1204 if (ino > ino_threshold)
1205 pass1_readahead(ctx, &ra_group, &ino_threshold);
1206 ehandler_operation(old_op);
1207 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1209 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1211 * If badblocks says badblocks is bad, offer to clear
1212 * the list, update the in-core bb list, and restart
1215 if (ino == EXT2_BAD_INO &&
1216 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1220 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1221 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1222 ctx->fs->badblocks = NULL;
1223 err = ext2fs_read_bb_inode(ctx->fs,
1224 &ctx->fs->badblocks);
1226 fix_problem(ctx, PR_1_ISCAN_ERROR,
1228 ctx->flags |= E2F_FLAG_ABORT;
1231 err = ext2fs_inode_scan_goto_blockgroup(scan,
1234 fix_problem(ctx, PR_1_ISCAN_ERROR,
1236 ctx->flags |= E2F_FLAG_ABORT;
1241 if (!ctx->inode_bb_map)
1243 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1244 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1248 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1249 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1250 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1251 ctx->flags |= E2F_FLAG_ABORT;
1258 ctx->stashed_ino = ino;
1260 /* Clear trashed inode? */
1261 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1262 inode->i_links_count > 0 &&
1263 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1265 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1267 failed_csum = pctx.errcode != 0;
1269 if (inode->i_links_count) {
1270 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1271 ino, inode->i_links_count);
1273 pctx.num = inode->i_links_count;
1274 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1275 ctx->flags |= E2F_FLAG_ABORT;
1280 /* Conflicting inlinedata/extents inode flags? */
1281 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1282 (inode->i_flags & EXT4_EXTENTS_FL)) {
1283 int res = fix_inline_data_extents_file(ctx, ino, inode,
1287 /* skip FINISH_INODE_LOOP */
1292 /* Test for incorrect inline_data flags settings. */
1293 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1294 (ino >= EXT2_FIRST_INODE(fs->super))) {
1297 pctx.errcode = ext2fs_inline_data_size(fs, ino, &size);
1298 if (!pctx.errcode && size &&
1299 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1300 ext2fs_set_feature_inline_data(sb);
1301 ext2fs_mark_super_dirty(fs);
1303 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1304 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1305 /* skip FINISH_INODE_LOOP */
1310 /* Test for inline data flag but no attr */
1311 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1312 EXT2_I_SIZE(inode) > EXT4_MIN_INLINE_DATA_SIZE &&
1313 (ino >= EXT2_FIRST_INODE(fs->super))) {
1320 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1321 err = get_inline_data_ea_size(fs, ino, &size);
1322 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1323 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1327 /* Everything is awesome... */
1329 case EXT2_ET_BAD_EA_BLOCK_NUM:
1330 case EXT2_ET_BAD_EA_HASH:
1331 case EXT2_ET_BAD_EA_HEADER:
1332 case EXT2_ET_EA_BAD_NAME_LEN:
1333 case EXT2_ET_EA_BAD_VALUE_SIZE:
1334 case EXT2_ET_EA_KEY_NOT_FOUND:
1335 case EXT2_ET_EA_NO_SPACE:
1336 case EXT2_ET_MISSING_EA_FEATURE:
1337 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1338 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1339 case EXT2_ET_INLINE_DATA_NO_SPACE:
1340 case EXT2_ET_NO_INLINE_DATA:
1341 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1342 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1343 /* broken EA or no system.data EA; truncate */
1344 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1346 err = ext2fs_inode_size_set(fs, inode,
1347 sizeof(inode->i_block));
1350 ctx->flags |= E2F_FLAG_ABORT;
1353 if (LINUX_S_ISLNK(inode->i_mode))
1354 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1355 e2fsck_write_inode(ctx, ino, inode,
1361 /* Some other kind of non-xattr error? */
1363 ctx->flags |= E2F_FLAG_ABORT;
1369 * Test for incorrect extent flag settings.
1371 * On big-endian machines we must be careful:
1372 * When the inode is read, the i_block array is not swapped
1373 * if the extent flag is set. Therefore if we are testing
1374 * for or fixing a wrongly-set flag, we must potentially
1375 * (un)swap before testing, or after fixing.
1379 * In this case the extents flag was set when read, so
1380 * extent_header_verify is ok. If the inode is cleared,
1381 * no need to swap... so no extra swapping here.
1383 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1384 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1385 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1386 if ((ext2fs_extent_header_verify(inode->i_block,
1387 sizeof(inode->i_block)) == 0) &&
1388 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1389 ext2fs_set_feature_extents(sb);
1390 ext2fs_mark_super_dirty(fs);
1392 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1394 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1395 if (ino == EXT2_BAD_INO)
1396 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1398 /* skip FINISH_INODE_LOOP */
1404 * For big-endian machines:
1405 * If the inode didn't have the extents flag set when it
1406 * was read, then the i_blocks array was swapped. To test
1407 * as an extents header, we must swap it back first.
1408 * IF we then set the extents flag, the entire i_block
1409 * array must be un/re-swapped to make it proper extents data.
1411 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1412 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1413 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1414 (LINUX_S_ISREG(inode->i_mode) ||
1415 LINUX_S_ISDIR(inode->i_mode))) {
1417 #ifdef WORDS_BIGENDIAN
1418 __u32 tmp_block[EXT2_N_BLOCKS];
1420 for (i = 0; i < EXT2_N_BLOCKS; i++)
1421 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1424 ehp = inode->i_block;
1426 if ((ext2fs_extent_header_verify(ehp,
1427 sizeof(inode->i_block)) == 0) &&
1428 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1429 inode->i_flags |= EXT4_EXTENTS_FL;
1430 #ifdef WORDS_BIGENDIAN
1431 memcpy(inode->i_block, tmp_block,
1432 sizeof(inode->i_block));
1434 e2fsck_write_inode(ctx, ino, inode, "pass1");
1439 if (ino == EXT2_BAD_INO) {
1440 struct process_block_struct pb;
1442 if ((failed_csum || inode->i_mode || inode->i_uid ||
1443 inode->i_gid || inode->i_links_count ||
1444 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1445 inode->i_file_acl) &&
1446 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1447 memset(inode, 0, sizeof(struct ext2_inode));
1448 e2fsck_write_inode(ctx, ino, inode,
1453 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1454 &pb.fs_meta_blocks);
1457 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1458 ctx->flags |= E2F_FLAG_ABORT;
1461 pb.ino = EXT2_BAD_INO;
1462 pb.num_blocks = pb.last_block = 0;
1463 pb.last_db_block = -1;
1464 pb.num_illegal_blocks = 0;
1465 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1466 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1470 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1471 block_buf, process_bad_block, &pb);
1472 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1474 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1475 ctx->flags |= E2F_FLAG_ABORT;
1479 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1480 ctx->flags |= E2F_FLAG_ABORT;
1483 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1484 clear_problem_context(&pctx);
1485 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1487 } else if (ino == EXT2_ROOT_INO) {
1489 * Make sure the root inode is a directory; if
1490 * not, offer to clear it. It will be
1491 * regnerated in pass #3.
1493 if (!LINUX_S_ISDIR(inode->i_mode)) {
1494 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1498 * If dtime is set, offer to clear it. mke2fs
1499 * version 0.2b created filesystems with the
1500 * dtime field set for the root and lost+found
1501 * directories. We won't worry about
1502 * /lost+found, since that can be regenerated
1503 * easily. But we will fix the root directory
1504 * as a special case.
1506 if (inode->i_dtime && inode->i_links_count) {
1507 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1509 e2fsck_write_inode(ctx, ino, inode,
1514 } else if (ino == EXT2_JOURNAL_INO) {
1515 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1516 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1517 if (!LINUX_S_ISREG(inode->i_mode) &&
1518 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1520 inode->i_mode = LINUX_S_IFREG;
1521 e2fsck_write_inode(ctx, ino, inode,
1525 check_blocks(ctx, &pctx, block_buf);
1526 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1529 if ((inode->i_links_count ||
1530 inode->i_blocks || inode->i_block[0]) &&
1531 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1533 memset(inode, 0, inode_size);
1534 ext2fs_icount_store(ctx->inode_link_info,
1536 e2fsck_write_inode_full(ctx, ino, inode,
1537 inode_size, "pass1");
1540 } else if (quota_inum_is_reserved(fs, ino)) {
1541 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1542 if (ext2fs_has_feature_quota(fs->super) &&
1543 quota_inum_is_super(fs->super, ino)) {
1544 if (!LINUX_S_ISREG(inode->i_mode) &&
1545 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1547 inode->i_mode = LINUX_S_IFREG;
1548 e2fsck_write_inode(ctx, ino, inode,
1552 check_blocks(ctx, &pctx, block_buf);
1553 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1556 if ((inode->i_links_count ||
1557 inode->i_blocks || inode->i_block[0]) &&
1558 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1560 memset(inode, 0, inode_size);
1561 ext2fs_icount_store(ctx->inode_link_info,
1563 e2fsck_write_inode_full(ctx, ino, inode,
1564 inode_size, "pass1");
1567 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1568 problem_t problem = 0;
1570 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1571 if (ino == EXT2_BOOT_LOADER_INO) {
1572 if (LINUX_S_ISDIR(inode->i_mode))
1573 problem = PR_1_RESERVED_BAD_MODE;
1574 } else if (ino == EXT2_RESIZE_INO) {
1575 if (inode->i_mode &&
1576 !LINUX_S_ISREG(inode->i_mode))
1577 problem = PR_1_RESERVED_BAD_MODE;
1579 if (inode->i_mode != 0)
1580 problem = PR_1_RESERVED_BAD_MODE;
1583 if (fix_problem(ctx, problem, &pctx)) {
1585 e2fsck_write_inode(ctx, ino, inode,
1590 check_blocks(ctx, &pctx, block_buf);
1591 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1596 * Check for inodes who might have been part of the
1597 * orphaned list linked list. They should have gotten
1598 * dealt with by now, unless the list had somehow been
1601 * FIXME: In the future, inodes which are still in use
1602 * (and which are therefore) pending truncation should
1603 * be handled specially. Right now we just clear the
1604 * dtime field, and the normal e2fsck handling of
1605 * inodes where i_size and the inode blocks are
1606 * inconsistent is to fix i_size, instead of releasing
1607 * the extra blocks. This won't catch the inodes that
1608 * was at the end of the orphan list, but it's better
1609 * than nothing. The right answer is that there
1610 * shouldn't be any bugs in the orphan list handling. :-)
1612 if (inode->i_dtime && low_dtime_check &&
1613 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1614 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1615 inode->i_dtime = inode->i_links_count ?
1617 e2fsck_write_inode(ctx, ino, inode,
1624 * This code assumes that deleted inodes have
1625 * i_links_count set to 0.
1627 if (!inode->i_links_count) {
1628 if (!inode->i_dtime && inode->i_mode) {
1629 if (fix_problem(ctx,
1630 PR_1_ZERO_DTIME, &pctx)) {
1631 inode->i_dtime = ctx->now;
1632 e2fsck_write_inode(ctx, ino, inode,
1637 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1641 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1642 * deleted files. Oops.
1644 * Since all new ext2 implementations get this right,
1645 * we now assume that the case of non-zero
1646 * i_links_count and non-zero dtime means that we
1647 * should keep the file, not delete it.
1650 if (inode->i_dtime) {
1651 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1653 e2fsck_write_inode(ctx, ino, inode, "pass1");
1658 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1659 switch (fs->super->s_creator_os) {
1661 frag = inode->osd2.hurd2.h_i_frag;
1662 fsize = inode->osd2.hurd2.h_i_fsize;
1668 if (inode->i_faddr || frag || fsize ||
1669 (LINUX_S_ISDIR(inode->i_mode) && inode->i_dir_acl))
1670 mark_inode_bad(ctx, ino);
1671 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
1672 !ext2fs_has_feature_64bit(fs->super) &&
1673 inode->osd2.linux2.l_i_file_acl_high != 0)
1674 mark_inode_bad(ctx, ino);
1675 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
1676 !ext2fs_has_feature_huge_file(fs->super) &&
1677 (inode->osd2.linux2.l_i_blocks_hi != 0))
1678 mark_inode_bad(ctx, ino);
1679 if (inode->i_flags & EXT2_IMAGIC_FL) {
1681 if (!ctx->inode_imagic_map)
1682 alloc_imagic_map(ctx);
1683 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1686 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1687 inode->i_flags &= ~EXT2_IMAGIC_FL;
1688 e2fsck_write_inode(ctx, ino,
1695 check_inode_extra_space(ctx, &pctx);
1696 check_is_really_dir(ctx, &pctx, block_buf);
1699 * ext2fs_inode_has_valid_blocks2 does not actually look
1700 * at i_block[] values, so not endian-sensitive here.
1702 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1703 LINUX_S_ISLNK(inode->i_mode) &&
1704 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1705 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1706 inode->i_flags &= ~EXT4_EXTENTS_FL;
1707 e2fsck_write_inode(ctx, ino, inode, "pass1");
1711 if (LINUX_S_ISDIR(inode->i_mode)) {
1712 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1713 e2fsck_add_dir_info(ctx, ino, 0);
1714 ctx->fs_directory_count++;
1715 if (inode->i_flags & EXT4_ENCRYPT_FL)
1716 add_encrypted_dir(ctx, ino);
1717 } else if (LINUX_S_ISREG (inode->i_mode)) {
1718 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1719 ctx->fs_regular_count++;
1720 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1721 e2fsck_pass1_check_device_inode(fs, inode)) {
1722 check_extents_inlinedata(ctx, &pctx);
1723 check_immutable(ctx, &pctx);
1724 check_size(ctx, &pctx);
1725 ctx->fs_chardev_count++;
1726 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1727 e2fsck_pass1_check_device_inode(fs, inode)) {
1728 check_extents_inlinedata(ctx, &pctx);
1729 check_immutable(ctx, &pctx);
1730 check_size(ctx, &pctx);
1731 ctx->fs_blockdev_count++;
1732 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1733 e2fsck_pass1_check_symlink(fs, ino, inode,
1735 check_immutable(ctx, &pctx);
1736 ctx->fs_symlinks_count++;
1737 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1738 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1740 } else if (ext2fs_inode_data_blocks(fs, inode) == 0) {
1741 ctx->fs_fast_symlinks_count++;
1742 check_blocks(ctx, &pctx, block_buf);
1743 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1747 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1748 e2fsck_pass1_check_device_inode(fs, inode)) {
1749 check_extents_inlinedata(ctx, &pctx);
1750 check_immutable(ctx, &pctx);
1751 check_size(ctx, &pctx);
1752 ctx->fs_fifo_count++;
1753 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1754 e2fsck_pass1_check_device_inode(fs, inode)) {
1755 check_extents_inlinedata(ctx, &pctx);
1756 check_immutable(ctx, &pctx);
1757 check_size(ctx, &pctx);
1758 ctx->fs_sockets_count++;
1760 mark_inode_bad(ctx, ino);
1761 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1762 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1763 if (inode->i_block[EXT2_IND_BLOCK])
1764 ctx->fs_ind_count++;
1765 if (inode->i_block[EXT2_DIND_BLOCK])
1766 ctx->fs_dind_count++;
1767 if (inode->i_block[EXT2_TIND_BLOCK])
1768 ctx->fs_tind_count++;
1770 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1771 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1772 (inode->i_block[EXT2_IND_BLOCK] ||
1773 inode->i_block[EXT2_DIND_BLOCK] ||
1774 inode->i_block[EXT2_TIND_BLOCK] ||
1775 ext2fs_file_acl_block(fs, inode))) {
1776 inodes_to_process[process_inode_count].ino = ino;
1777 inodes_to_process[process_inode_count].inode = *inode;
1778 process_inode_count++;
1780 check_blocks(ctx, &pctx, block_buf);
1782 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1784 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1787 if (process_inode_count >= ctx->process_inode_size) {
1788 process_inodes(ctx, block_buf);
1790 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1794 process_inodes(ctx, block_buf);
1795 ext2fs_close_inode_scan(scan);
1798 reserve_block_for_root_repair(ctx);
1799 reserve_block_for_lnf_repair(ctx);
1802 * If any extended attribute blocks' reference counts need to
1803 * be adjusted, either up (ctx->refcount_extra), or down
1804 * (ctx->refcount), then fix them.
1806 if (ctx->refcount) {
1807 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1808 ea_refcount_free(ctx->refcount);
1811 if (ctx->refcount_extra) {
1812 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1814 ea_refcount_free(ctx->refcount_extra);
1815 ctx->refcount_extra = 0;
1818 if (ctx->invalid_bitmaps)
1819 handle_fs_bad_blocks(ctx);
1821 /* We don't need the block_ea_map any more */
1822 if (ctx->block_ea_map) {
1823 ext2fs_free_block_bitmap(ctx->block_ea_map);
1824 ctx->block_ea_map = 0;
1827 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
1828 clear_problem_context(&pctx);
1829 pctx.errcode = ext2fs_create_resize_inode(fs);
1831 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
1833 ctx->flags |= E2F_FLAG_ABORT;
1838 if (!pctx.errcode) {
1839 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
1841 inode->i_mtime = ctx->now;
1842 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
1845 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
1848 if (ctx->flags & E2F_FLAG_RESTART) {
1850 * Only the master copy of the superblock and block
1851 * group descriptors are going to be written during a
1852 * restart, so set the superblock to be used to be the
1853 * master superblock.
1855 ctx->use_superblock = 0;
1860 if (ctx->block_dup_map) {
1861 if (ctx->options & E2F_OPT_PREEN) {
1862 clear_problem_context(&pctx);
1863 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
1865 e2fsck_pass1_dupblocks(ctx, block_buf);
1867 ctx->flags |= E2F_FLAG_ALLOC_OK;
1868 ext2fs_free_mem(&inodes_to_process);
1870 e2fsck_use_inode_shortcuts(ctx, 0);
1873 ext2fs_close_inode_scan(scan);
1875 ext2fs_free_mem(&block_buf);
1877 ext2fs_free_mem(&inode);
1880 * The l+f inode may have been cleared, so zap it now and
1881 * later passes will recalculate it if necessary
1883 ctx->lost_and_found = 0;
1885 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
1886 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
1888 ctx->invalid_bitmaps++;
1890 #undef FINISH_INODE_LOOP
1893 * When the inode_scan routines call this callback at the end of the
1894 * glock group, call process_inodes.
1896 static errcode_t scan_callback(ext2_filsys fs,
1897 ext2_inode_scan scan EXT2FS_ATTR((unused)),
1898 dgrp_t group, void * priv_data)
1900 struct scan_callback_struct *scan_struct;
1903 scan_struct = (struct scan_callback_struct *) priv_data;
1904 ctx = scan_struct->ctx;
1906 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
1909 if ((ctx->progress)(ctx, 1, group+1,
1910 ctx->fs->group_desc_count))
1911 return EXT2_ET_CANCEL_REQUESTED;
1917 * Process the inodes in the "inodes to process" list.
1919 static void process_inodes(e2fsck_t ctx, char *block_buf)
1922 struct ext2_inode *old_stashed_inode;
1923 ext2_ino_t old_stashed_ino;
1924 const char *old_operation;
1926 struct problem_context pctx;
1929 printf("begin process_inodes: ");
1931 if (process_inode_count == 0)
1933 old_operation = ehandler_operation(0);
1934 old_stashed_inode = ctx->stashed_inode;
1935 old_stashed_ino = ctx->stashed_ino;
1936 qsort(inodes_to_process, process_inode_count,
1937 sizeof(struct process_inode_block), process_inode_cmp);
1938 clear_problem_context(&pctx);
1939 for (i=0; i < process_inode_count; i++) {
1940 pctx.inode = ctx->stashed_inode = &inodes_to_process[i].inode;
1941 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
1944 printf("%u ", pctx.ino);
1946 sprintf(buf, _("reading indirect blocks of inode %u"),
1948 ehandler_operation(buf);
1949 check_blocks(ctx, &pctx, block_buf);
1950 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1953 ctx->stashed_inode = old_stashed_inode;
1954 ctx->stashed_ino = old_stashed_ino;
1955 process_inode_count = 0;
1957 printf("end process inodes\n");
1959 ehandler_operation(old_operation);
1962 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
1964 const struct process_inode_block *ib_a =
1965 (const struct process_inode_block *) a;
1966 const struct process_inode_block *ib_b =
1967 (const struct process_inode_block *) b;
1970 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
1971 ib_b->inode.i_block[EXT2_IND_BLOCK]);
1974 * We only call process_inodes() for non-extent
1975 * inodes, so it's OK to pass NULL to
1976 * ext2fs_file_acl_block() here.
1978 ret = ext2fs_file_acl_block(0, &(ib_a->inode)) -
1979 ext2fs_file_acl_block(0, &(ib_b->inode));
1981 ret = ib_a->ino - ib_b->ino;
1986 * Mark an inode as being bad in some what
1988 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
1990 struct problem_context pctx;
1992 if (!ctx->inode_bad_map) {
1993 clear_problem_context(&pctx);
1995 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
1996 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
1997 "inode_bad_map", &ctx->inode_bad_map);
2000 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2001 /* Should never get here */
2002 ctx->flags |= E2F_FLAG_ABORT;
2006 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2009 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino)
2011 struct problem_context pctx;
2013 if (!ctx->encrypted_dirs) {
2014 pctx.errcode = ext2fs_u32_list_create(&ctx->encrypted_dirs, 0);
2018 pctx.errcode = ext2fs_u32_list_add(ctx->encrypted_dirs, ino);
2019 if (pctx.errcode == 0)
2022 fix_problem(ctx, PR_1_ALLOCATE_ENCRYPTED_DIRLIST, &pctx);
2023 /* Should never get here */
2024 ctx->flags |= E2F_FLAG_ABORT;
2028 * This procedure will allocate the inode "bb" (badblock) map table
2030 static void alloc_bb_map(e2fsck_t ctx)
2032 struct problem_context pctx;
2034 clear_problem_context(&pctx);
2035 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2036 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2037 "inode_bb_map", &ctx->inode_bb_map);
2040 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2041 /* Should never get here */
2042 ctx->flags |= E2F_FLAG_ABORT;
2048 * This procedure will allocate the inode imagic table
2050 static void alloc_imagic_map(e2fsck_t ctx)
2052 struct problem_context pctx;
2054 clear_problem_context(&pctx);
2055 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2056 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
2057 "inode_imagic_map", &ctx->inode_imagic_map);
2060 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2061 /* Should never get here */
2062 ctx->flags |= E2F_FLAG_ABORT;
2068 * Marks a block as in use, setting the dup_map if it's been set
2069 * already. Called by process_block and process_bad_block.
2071 * WARNING: Assumes checks have already been done to make sure block
2072 * is valid. This is true in both process_block and process_bad_block.
2074 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
2076 struct problem_context pctx;
2078 clear_problem_context(&pctx);
2080 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
2081 if (!ctx->block_dup_map) {
2082 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
2083 _("multiply claimed block map"),
2084 EXT2FS_BMAP64_RBTREE, "block_dup_map",
2085 &ctx->block_dup_map);
2088 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
2090 /* Should never get here */
2091 ctx->flags |= E2F_FLAG_ABORT;
2095 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
2097 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
2101 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
2104 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
2105 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
2108 mark_block_used(ctx, block++);
2112 * Adjust the extended attribute block's reference counts at the end
2113 * of pass 1, either by subtracting out references for EA blocks that
2114 * are still referenced in ctx->refcount, or by adding references for
2115 * EA blocks that had extra references as accounted for in
2116 * ctx->refcount_extra.
2118 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
2119 char *block_buf, int adjust_sign)
2121 struct ext2_ext_attr_header *header;
2122 struct problem_context pctx;
2123 ext2_filsys fs = ctx->fs;
2128 clear_problem_context(&pctx);
2130 ea_refcount_intr_begin(refcount);
2132 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
2135 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
2138 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
2141 header = (struct ext2_ext_attr_header *) block_buf;
2142 pctx.blkcount = header->h_refcount;
2143 should_be = header->h_refcount + adjust_sign * count;
2144 pctx.num = should_be;
2145 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
2146 header->h_refcount = should_be;
2147 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
2151 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
2160 * Handle processing the extended attribute blocks
2162 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
2165 ext2_filsys fs = ctx->fs;
2166 ext2_ino_t ino = pctx->ino;
2167 struct ext2_inode *inode = pctx->inode;
2170 struct ext2_ext_attr_header *header;
2171 struct ext2_ext_attr_entry *entry;
2173 region_t region = 0;
2174 int failed_csum = 0;
2176 blk = ext2fs_file_acl_block(fs, inode);
2181 * If the Extended attribute flag isn't set, then a non-zero
2182 * file acl means that the inode is corrupted.
2184 * Or if the extended attribute block is an invalid block,
2185 * then the inode is also corrupted.
2187 if (!ext2fs_has_feature_xattr(fs->super) ||
2188 (blk < fs->super->s_first_data_block) ||
2189 (blk >= ext2fs_blocks_count(fs->super))) {
2190 mark_inode_bad(ctx, ino);
2194 /* If ea bitmap hasn't been allocated, create it */
2195 if (!ctx->block_ea_map) {
2196 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
2197 _("ext attr block map"),
2198 EXT2FS_BMAP64_RBTREE, "block_ea_map",
2199 &ctx->block_ea_map);
2200 if (pctx->errcode) {
2202 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
2203 ctx->flags |= E2F_FLAG_ABORT;
2208 /* Create the EA refcount structure if necessary */
2209 if (!ctx->refcount) {
2210 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
2211 if (pctx->errcode) {
2213 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2214 ctx->flags |= E2F_FLAG_ABORT;
2220 /* Debugging text */
2221 printf("Inode %u has EA block %u\n", ino, blk);
2224 /* Have we seen this EA block before? */
2225 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
2226 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
2228 /* Ooops, this EA was referenced more than it stated */
2229 if (!ctx->refcount_extra) {
2230 pctx->errcode = ea_refcount_create(0,
2231 &ctx->refcount_extra);
2232 if (pctx->errcode) {
2234 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2235 ctx->flags |= E2F_FLAG_ABORT;
2239 ea_refcount_increment(ctx->refcount_extra, blk, 0);
2244 * OK, we haven't seen this EA block yet. So we need to
2248 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
2249 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
2252 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
2255 if (pctx->errcode &&
2256 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
2260 header = (struct ext2_ext_attr_header *) block_buf;
2261 pctx->blk = ext2fs_file_acl_block(fs, inode);
2262 if (((ctx->ext_attr_ver == 1) &&
2263 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
2264 ((ctx->ext_attr_ver == 2) &&
2265 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
2266 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
2270 if (header->h_blocks != 1) {
2271 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
2275 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
2278 region = region_create(0, fs->blocksize);
2280 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
2281 ctx->flags |= E2F_FLAG_ABORT;
2284 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
2285 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2289 entry = (struct ext2_ext_attr_entry *)(header+1);
2290 end = block_buf + fs->blocksize;
2291 while ((char *)entry < end && *(__u32 *)entry) {
2294 if (region_allocate(region, (char *)entry - (char *)header,
2295 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
2296 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2300 if ((ctx->ext_attr_ver == 1 &&
2301 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
2302 (ctx->ext_attr_ver == 2 &&
2303 entry->e_name_index == 0)) {
2304 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
2308 if (entry->e_value_block != 0) {
2309 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2312 if (entry->e_value_offs + entry->e_value_size > fs->blocksize) {
2313 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2317 if (entry->e_value_size &&
2318 region_allocate(region, entry->e_value_offs,
2319 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
2320 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2324 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
2325 entry->e_value_offs);
2327 if (entry->e_hash != hash) {
2328 pctx->num = entry->e_hash;
2329 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
2331 entry->e_hash = hash;
2334 entry = EXT2_EXT_ATTR_NEXT(entry);
2336 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
2337 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2340 region_free(region);
2343 * We only get here if there was no other errors that were fixed.
2344 * If there was a checksum fail, ask to correct it.
2347 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
2348 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
2354 count = header->h_refcount - 1;
2356 ea_refcount_store(ctx->refcount, blk, count);
2357 mark_block_used(ctx, blk);
2358 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
2363 region_free(region);
2364 ext2fs_file_acl_block_set(fs, inode, 0);
2365 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
2369 /* Returns 1 if bad htree, 0 if OK */
2370 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
2371 ext2_ino_t ino, struct ext2_inode *inode,
2374 struct ext2_dx_root_info *root;
2375 ext2_filsys fs = ctx->fs;
2379 if ((!LINUX_S_ISDIR(inode->i_mode) &&
2380 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
2381 (!ext2fs_has_feature_dir_index(fs->super) &&
2382 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
2385 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
2387 if ((pctx->errcode) ||
2389 (blk < fs->super->s_first_data_block) ||
2390 (blk >= ext2fs_blocks_count(fs->super))) {
2391 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2397 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
2398 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2401 /* XXX should check that beginning matches a directory */
2402 root = (struct ext2_dx_root_info *) (block_buf + 24);
2404 if ((root->reserved_zero || root->info_length < 8) &&
2405 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2408 pctx->num = root->hash_version;
2409 if ((root->hash_version != EXT2_HASH_LEGACY) &&
2410 (root->hash_version != EXT2_HASH_HALF_MD4) &&
2411 (root->hash_version != EXT2_HASH_TEA) &&
2412 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
2415 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
2416 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
2419 pctx->num = root->indirect_levels;
2420 if ((root->indirect_levels > 1) &&
2421 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
2427 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
2428 struct ext2_inode *inode, int restart_flag,
2432 inode->i_links_count = 0;
2433 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
2434 inode->i_dtime = ctx->now;
2437 * If a special inode has such rotten block mappings that we
2438 * want to clear the whole inode, be sure to actually zap
2439 * the block maps because i_links_count isn't checked for
2440 * special inodes, and we'll end up right back here the next
2443 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
2444 memset(inode->i_block, 0, sizeof(inode->i_block));
2446 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
2447 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
2448 if (ctx->inode_reg_map)
2449 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
2450 if (ctx->inode_bad_map)
2451 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
2454 * If the inode was partially accounted for before processing
2455 * was aborted, we need to restart the pass 1 scan.
2457 ctx->flags |= restart_flag;
2459 if (ino == EXT2_BAD_INO)
2460 memset(inode, 0, sizeof(struct ext2_inode));
2462 e2fsck_write_inode(ctx, ino, inode, source);
2466 * Use the multiple-blocks reclamation code to fix alignment problems in
2467 * a bigalloc filesystem. We want a logical cluster to map to *only* one
2468 * physical cluster, and we want the block offsets within that cluster to
2471 static int has_unaligned_cluster_map(e2fsck_t ctx,
2472 blk64_t last_pblk, e2_blkcnt_t last_lblk,
2473 blk64_t pblk, blk64_t lblk)
2475 blk64_t cluster_mask;
2477 if (!ctx->fs->cluster_ratio_bits)
2479 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
2482 * If the block in the logical cluster doesn't align with the block in
2483 * the physical cluster...
2485 if ((lblk & cluster_mask) != (pblk & cluster_mask))
2489 * If we cross a physical cluster boundary within a logical cluster...
2491 if (last_pblk && (lblk & cluster_mask) != 0 &&
2492 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
2493 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
2499 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
2500 struct process_block_struct *pb,
2501 blk64_t start_block, blk64_t end_block,
2503 ext2_extent_handle_t ehandle,
2506 struct ext2fs_extent extent;
2507 blk64_t blk, last_lblk;
2508 e2_blkcnt_t blockcnt;
2510 int is_dir, is_leaf;
2512 struct ext2_extent_info info;
2513 int failed_csum = 0;
2515 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
2518 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
2521 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
2522 !pb->eti.force_rebuild) {
2523 struct extent_tree_level *etl;
2525 etl = pb->eti.ext_info + info.curr_level;
2526 etl->num_extents += info.num_entries;
2527 etl->max_extents += info.max_entries;
2529 * Implementation wart: Splitting extent blocks when appending
2530 * will leave the old block with one free entry. Therefore
2531 * unless the node is totally full, pretend that a non-root
2532 * extent block can hold one fewer entry than it actually does,
2533 * so that we don't repeatedly rebuild the extent tree.
2535 if (info.curr_level && info.num_entries < info.max_entries)
2539 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
2541 while ((pctx->errcode == 0 ||
2542 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
2543 info.num_entries-- > 0) {
2544 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
2545 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
2546 last_lblk = extent.e_lblk + extent.e_len - 1;
2549 pctx->blk = extent.e_pblk;
2550 pctx->blk2 = extent.e_lblk;
2551 pctx->num = extent.e_len;
2552 pctx->blkcount = extent.e_lblk + extent.e_len;
2554 if (extent.e_pblk == 0 ||
2555 extent.e_pblk < ctx->fs->super->s_first_data_block ||
2556 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
2557 problem = PR_1_EXTENT_BAD_START_BLK;
2558 else if (extent.e_lblk < start_block)
2559 problem = PR_1_OUT_OF_ORDER_EXTENTS;
2560 else if ((end_block && last_lblk > end_block) &&
2561 (!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT &&
2562 last_lblk > eof_block)))
2563 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
2564 else if (is_leaf && extent.e_len == 0)
2565 problem = PR_1_EXTENT_LENGTH_ZERO;
2567 (extent.e_pblk + extent.e_len) >
2568 ext2fs_blocks_count(ctx->fs->super))
2569 problem = PR_1_EXTENT_ENDS_BEYOND;
2570 else if (is_leaf && is_dir &&
2571 ((extent.e_lblk + extent.e_len) >
2572 (1 << (21 - ctx->fs->super->s_log_block_size))))
2573 problem = PR_1_TOOBIG_DIR;
2575 if (is_leaf && problem == 0 && extent.e_len > 0 &&
2576 region_allocate(pb->region, extent.e_lblk, extent.e_len))
2577 problem = PR_1_EXTENT_COLLISION;
2580 * Uninitialized blocks in a directory? Clear the flag and
2581 * we'll interpret the blocks later.
2583 if (try_repairs && is_dir && problem == 0 &&
2584 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
2585 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
2586 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
2587 pb->inode_modified = 1;
2588 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
2595 if (try_repairs && problem) {
2597 if (fix_problem(ctx, problem, pctx)) {
2598 if (ctx->invalid_bitmaps) {
2600 * If fsck knows the bitmaps are bad,
2601 * skip to the next extent and
2602 * try to clear this extent again
2603 * after fixing the bitmaps, by
2606 pctx->errcode = ext2fs_extent_get(
2608 EXT2_EXTENT_NEXT_SIB,
2610 ctx->flags |= E2F_FLAG_RESTART_LATER;
2611 if (pctx->errcode ==
2612 EXT2_ET_NO_CURRENT_NODE) {
2618 e2fsck_read_bitmaps(ctx);
2619 pb->inode_modified = 1;
2621 ext2fs_extent_delete(ehandle, 0);
2622 if (pctx->errcode) {
2623 pctx->str = "ext2fs_extent_delete";
2626 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2627 if (pctx->errcode &&
2628 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
2629 pctx->str = "ext2fs_extent_fix_parents";
2632 pctx->errcode = ext2fs_extent_get(ehandle,
2633 EXT2_EXTENT_CURRENT,
2635 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
2646 blk64_t lblk = extent.e_lblk;
2647 int next_try_repairs = 1;
2649 blk = extent.e_pblk;
2652 * If this lower extent block collides with critical
2653 * metadata, don't try to repair the damage. Pass 1b
2654 * will reallocate the block; then we can try again.
2656 if (pb->ino != EXT2_RESIZE_INO &&
2657 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
2659 next_try_repairs = 0;
2662 PR_1_CRITICAL_METADATA_COLLISION,
2664 ctx->flags |= E2F_FLAG_RESTART_LATER;
2666 pctx->errcode = ext2fs_extent_get(ehandle,
2667 EXT2_EXTENT_DOWN, &extent);
2668 if (pctx->errcode &&
2669 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
2670 pctx->str = "EXT2_EXTENT_DOWN";
2671 problem = PR_1_EXTENT_HEADER_INVALID;
2672 if (!next_try_repairs)
2674 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
2675 goto report_problem;
2678 /* The next extent should match this index's logical start */
2679 if (extent.e_lblk != lblk) {
2680 struct ext2_extent_info e_info;
2682 ext2fs_extent_get_info(ehandle, &e_info);
2684 pctx->blk2 = extent.e_lblk;
2685 pctx->num = e_info.curr_level - 1;
2686 problem = PR_1_EXTENT_INDEX_START_INVALID;
2687 if (fix_problem(ctx, problem, pctx)) {
2688 pb->inode_modified = 1;
2690 ext2fs_extent_fix_parents(ehandle);
2691 if (pctx->errcode) {
2692 pctx->str = "ext2fs_extent_fix_parents";
2697 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
2698 last_lblk, eof_block, ehandle,
2702 pctx->errcode = ext2fs_extent_get(ehandle,
2703 EXT2_EXTENT_UP, &extent);
2704 if (pctx->errcode) {
2705 pctx->str = "EXT2_EXTENT_UP";
2708 mark_block_used(ctx, blk);
2713 if ((pb->previous_block != 0) &&
2714 (pb->previous_block+1 != extent.e_pblk)) {
2715 if (ctx->options & E2F_OPT_FRAGCHECK) {
2720 else if (pb->is_reg)
2723 printf(("%6lu(%c): expecting %6lu "
2725 "phys %6lu log %lu len %lu\n"),
2726 (unsigned long) pctx->ino, type,
2727 (unsigned long) pb->previous_block+1,
2728 (unsigned long) extent.e_pblk,
2729 (unsigned long) extent.e_lblk,
2730 (unsigned long) extent.e_len);
2735 * If we notice a gap in the logical block mappings of an
2736 * extent-mapped directory, offer to close the hole by
2737 * moving the logical block down, otherwise we'll go mad in
2738 * pass 3 allocating empty directory blocks to fill the hole.
2740 if (try_repairs && is_dir &&
2741 pb->last_block + 1 < (e2_blkcnt_t)extent.e_lblk) {
2744 new_lblk = pb->last_block + 1;
2745 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
2746 new_lblk = ((new_lblk +
2747 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
2748 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
2750 EXT2FS_CLUSTER_MASK(ctx->fs));
2751 pctx->blk = extent.e_lblk;
2752 pctx->blk2 = new_lblk;
2753 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
2754 extent.e_lblk = new_lblk;
2755 pb->inode_modified = 1;
2756 pctx->errcode = ext2fs_extent_replace(ehandle,
2758 if (pctx->errcode) {
2762 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2764 goto failed_add_dir_block;
2765 pctx->errcode = ext2fs_extent_goto(ehandle,
2768 goto failed_add_dir_block;
2769 last_lblk = extent.e_lblk + extent.e_len - 1;
2774 while (is_dir && (++pb->last_db_block <
2775 (e2_blkcnt_t) extent.e_lblk)) {
2776 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist,
2779 if (pctx->errcode) {
2781 pctx->num = pb->last_db_block;
2782 goto failed_add_dir_block;
2785 if (!ctx->fs->cluster_ratio_bits) {
2786 mark_blocks_used(ctx, extent.e_pblk, extent.e_len);
2787 pb->num_blocks += extent.e_len;
2789 for (blk = extent.e_pblk, blockcnt = extent.e_lblk, i = 0;
2791 blk++, blockcnt++, i++) {
2792 if (ctx->fs->cluster_ratio_bits &&
2793 !(pb->previous_block &&
2794 (EXT2FS_B2C(ctx->fs, blk) ==
2795 EXT2FS_B2C(ctx->fs, pb->previous_block)) &&
2796 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
2797 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
2798 mark_block_used(ctx, blk);
2801 if (has_unaligned_cluster_map(ctx, pb->previous_block,
2802 pb->last_block, blk,
2804 pctx->blk = blockcnt;
2806 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
2807 mark_block_used(ctx, blk);
2808 mark_block_used(ctx, blk);
2810 pb->last_block = blockcnt;
2811 pb->previous_block = blk;
2814 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pctx->ino, blk, blockcnt);
2815 if (pctx->errcode) {
2817 pctx->num = blockcnt;
2818 failed_add_dir_block:
2819 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
2820 /* Should never get here */
2821 ctx->flags |= E2F_FLAG_ABORT;
2826 if (is_dir && extent.e_len > 0)
2827 pb->last_db_block = blockcnt - 1;
2828 pb->previous_block = extent.e_pblk + extent.e_len - 1;
2829 start_block = pb->last_block = last_lblk;
2830 if (is_leaf && !is_dir &&
2831 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
2832 pb->last_init_lblock = last_lblk;
2834 pctx->errcode = ext2fs_extent_get(ehandle,
2835 EXT2_EXTENT_NEXT_SIB,
2839 /* Failed csum but passes checks? Ask to fix checksum. */
2841 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
2842 pb->inode_modified = 1;
2843 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
2848 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
2852 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
2853 struct process_block_struct *pb)
2855 struct ext2_extent_info info;
2856 struct ext2_inode *inode = pctx->inode;
2857 ext2_extent_handle_t ehandle;
2858 ext2_filsys fs = ctx->fs;
2859 ext2_ino_t ino = pctx->ino;
2862 struct ext3_extent_header *eh;
2864 /* Check for a proper extent header... */
2865 eh = (struct ext3_extent_header *) &inode->i_block[0];
2866 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
2868 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
2869 e2fsck_clear_inode(ctx, ino, inode, 0,
2870 "check_blocks_extents");
2875 /* ...since this function doesn't fail if i_block is zeroed. */
2876 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
2877 if (pctx->errcode) {
2878 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
2879 e2fsck_clear_inode(ctx, ino, inode, 0,
2880 "check_blocks_extents");
2885 retval = ext2fs_extent_get_info(ehandle, &info);
2887 int max_depth = info.max_depth;
2889 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
2890 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
2891 ctx->extent_depth_count[max_depth]++;
2894 /* Check maximum extent depth */
2895 pctx->blk = info.max_depth;
2896 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
2897 if (pctx->blk2 < pctx->blk &&
2898 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
2899 pb->eti.force_rebuild = 1;
2901 /* Can we collect extent tree level stats? */
2902 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
2903 if (pctx->blk2 > pctx->blk)
2904 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
2905 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
2906 pb->eti.ino = pb->ino;
2908 pb->region = region_create(0, info.max_lblk);
2910 ext2fs_extent_free(ehandle);
2911 fix_problem(ctx, PR_1_EXTENT_ALLOC_REGION_ABORT, pctx);
2912 ctx->flags |= E2F_FLAG_ABORT;
2916 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
2917 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
2918 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
2919 if (pctx->errcode &&
2920 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
2922 inode->i_blocks = 0;
2923 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
2924 "check_blocks_extents");
2927 region_free(pb->region);
2929 ext2fs_extent_free(ehandle);
2931 /* Rebuild unless it's a dir and we're rehashing it */
2932 if (LINUX_S_ISDIR(inode->i_mode) &&
2933 e2fsck_dir_will_be_rehashed(ctx, ino))
2936 if (ctx->options & E2F_OPT_CONVERT_BMAP)
2937 e2fsck_rebuild_extents_later(ctx, ino);
2939 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
2943 * In fact we don't need to check blocks for an inode with inline data
2944 * because this inode doesn't have any blocks. In this function all
2945 * we need to do is add this inode into dblist when it is a directory.
2947 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
2948 struct process_block_struct *pb)
2951 size_t inline_data_size = 0;
2958 /* Process the dirents in i_block[] as the "first" block. */
2959 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
2963 /* Process the dirents in the EA as a "second" block. */
2964 flags = ctx->fs->flags;
2965 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
2966 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
2968 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
2969 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
2970 if (pctx->errcode) {
2975 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
2978 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
2986 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
2987 ctx->flags |= E2F_FLAG_ABORT;
2991 * This subroutine is called on each inode to account for all of the
2992 * blocks used by that inode.
2994 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
2997 ext2_filsys fs = ctx->fs;
2998 struct process_block_struct pb;
2999 ext2_ino_t ino = pctx->ino;
3000 struct ext2_inode *inode = pctx->inode;
3001 unsigned bad_size = 0;
3002 int dirty_inode = 0;
3010 pb.last_init_lblock = -1;
3011 pb.last_db_block = -1;
3012 pb.num_illegal_blocks = 0;
3013 pb.suppress = 0; pb.clear = 0;
3016 pb.previous_block = 0;
3017 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
3018 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
3019 pb.max_blocks = 1 << (31 - fs->super->s_log_block_size);
3023 pb.inode_modified = 0;
3024 pb.eti.force_rebuild = 0;
3028 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
3029 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
3031 if (check_ext_attr(ctx, pctx, block_buf)) {
3032 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3037 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
3038 check_blocks_inline_data(ctx, pctx, &pb);
3039 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
3040 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
3041 check_blocks_extents(ctx, pctx, &pb);
3045 * If we've modified the inode, write it out before
3046 * iterate() tries to use it.
3049 e2fsck_write_inode(ctx, ino, inode,
3054 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3055 pctx->errcode = ext2fs_block_iterate3(fs, ino,
3056 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
3057 block_buf, process_block, &pb);
3059 * We do not have uninitialized extents in non extent
3062 pb.last_init_lblock = pb.last_block;
3064 * If iterate() changed a block mapping, we have to
3065 * re-read the inode. If we decide to clear the
3066 * inode after clearing some stuff, we'll re-write the
3067 * bad mappings into the inode!
3069 if (pb.inode_modified)
3070 e2fsck_read_inode(ctx, ino, inode,
3072 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3073 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3075 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
3077 printf("bmap rebuild ino=%d\n", ino);
3079 if (!LINUX_S_ISDIR(inode->i_mode) ||
3080 !e2fsck_dir_will_be_rehashed(ctx, ino))
3081 e2fsck_rebuild_extents_later(ctx, ino);
3085 end_problem_latch(ctx, PR_LATCH_BLOCK);
3086 end_problem_latch(ctx, PR_LATCH_TOOBIG);
3087 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3090 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
3092 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
3093 if (LINUX_S_ISDIR(inode->i_mode))
3094 ctx->fs_fragmented_dir++;
3096 ctx->fs_fragmented++;
3100 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3105 if (inode->i_flags & EXT2_INDEX_FL) {
3106 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
3107 inode->i_flags &= ~EXT2_INDEX_FL;
3110 e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
3114 if (!pb.num_blocks && pb.is_dir &&
3115 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
3116 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
3117 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
3118 ctx->fs_directory_count--;
3123 if (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) {
3124 quota_data_add(ctx->qctx, inode, ino,
3125 pb.num_blocks * fs->blocksize);
3126 quota_data_inodes(ctx->qctx, inode, ino, +1);
3129 if (!ext2fs_has_feature_huge_file(fs->super) ||
3130 !(inode->i_flags & EXT4_HUGE_FILE_FL))
3131 pb.num_blocks *= (fs->blocksize / 512);
3132 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
3134 printf("inode %u, i_size = %u, last_block = %lld, i_blocks=%llu, num_blocks = %llu\n",
3135 ino, inode->i_size, pb.last_block, ext2fs_inode_i_blocks(fs, inode),
3139 int nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
3140 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
3146 flags = ctx->fs->flags;
3147 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3148 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
3150 ctx->fs->flags = (flags &
3151 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3153 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3154 if (err || size != inode->i_size) {
3158 } else if (inode->i_size & (fs->blocksize - 1))
3160 else if (nblock > (pb.last_block + 1))
3162 else if (nblock < (pb.last_block + 1)) {
3163 if (((pb.last_block + 1) - nblock) >
3164 fs->super->s_prealloc_dir_blocks)
3168 e2_blkcnt_t blkpg = ctx->blocks_per_page;
3170 size = EXT2_I_SIZE(inode);
3171 if ((pb.last_init_lblock >= 0) &&
3172 /* allow allocated blocks to end of PAGE_SIZE */
3173 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
3174 (pb.last_init_lblock / blkpg * blkpg != pb.last_init_lblock ||
3175 size < (__u64)(pb.last_init_lblock & ~(blkpg-1)) *
3178 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3179 size > ext2_max_sizes[fs->super->s_log_block_size])
3180 /* too big for a direct/indirect-mapped file */
3182 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3184 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
3185 /* too big for an extent-based file - 32bit ee_block */
3188 /* i_size for symlinks is checked elsewhere */
3189 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
3190 /* Did inline_data set pctx->num earlier? */
3192 pctx->num = (pb.last_block + 1) * fs->blocksize;
3193 pctx->group = bad_size;
3194 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
3195 if (LINUX_S_ISDIR(inode->i_mode))
3196 pctx->num &= 0xFFFFFFFFULL;
3197 ext2fs_inode_size_set(fs, inode, pctx->num);
3198 if (EXT2_I_SIZE(inode) == 0 &&
3199 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
3200 memset(inode->i_block, 0,
3201 sizeof(inode->i_block));
3202 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
3208 if (LINUX_S_ISREG(inode->i_mode) &&
3209 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3211 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
3212 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
3213 (ext2fs_has_feature_huge_file(fs->super) &&
3214 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
3215 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
3216 pctx->num = pb.num_blocks;
3217 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
3218 inode->i_blocks = pb.num_blocks;
3219 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
3226 * The kernel gets mad if we ask it to allocate bigalloc clusters to
3227 * a block mapped file, so rebuild it as an extent file. We can skip
3228 * symlinks because they're never rewritten.
3230 if (ext2fs_has_feature_bigalloc(fs->super) &&
3231 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
3232 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
3233 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
3234 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
3235 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
3236 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
3241 if (ctx->dirs_to_hash && pb.is_dir &&
3242 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
3243 !(inode->i_flags & EXT2_INDEX_FL) &&
3244 ((inode->i_size / fs->blocksize) >= 3))
3245 e2fsck_rehash_dir_later(ctx, ino);
3249 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
3254 * Helper function called by process block when an illegal block is
3255 * found. It returns a description about why the block is illegal
3257 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
3261 static char problem[80];
3263 super = fs->super->s_first_data_block;
3264 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
3265 if (block < super) {
3266 sprintf(problem, "< FIRSTBLOCK (%u)", super);
3268 } else if (block >= ext2fs_blocks_count(fs->super)) {
3269 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
3272 for (i = 0; i < fs->group_desc_count; i++) {
3273 if (block == super) {
3274 sprintf(problem, "is the superblock in group %d", i);
3277 if (block > super &&
3278 block <= (super + fs->desc_blocks)) {
3279 sprintf(problem, "is in the group descriptors "
3283 if (block == ext2fs_block_bitmap_loc(fs, i)) {
3284 sprintf(problem, "is the block bitmap of group %d", i);
3287 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
3288 sprintf(problem, "is the inode bitmap of group %d", i);
3291 if (block >= ext2fs_inode_table_loc(fs, i) &&
3292 (block < ext2fs_inode_table_loc(fs, i)
3293 + fs->inode_blocks_per_group)) {
3294 sprintf(problem, "is in the inode table of group %d",
3298 super += fs->super->s_blocks_per_group;
3305 * This is a helper function for check_blocks().
3307 static int process_block(ext2_filsys fs,
3309 e2_blkcnt_t blockcnt,
3310 blk64_t ref_block EXT2FS_ATTR((unused)),
3311 int ref_offset EXT2FS_ATTR((unused)),
3314 struct process_block_struct *p;
3315 struct problem_context *pctx;
3316 blk64_t blk = *block_nr;
3318 problem_t problem = 0;
3321 p = (struct process_block_struct *) priv_data;
3326 * For a directory, add logical block zero for processing even if it's
3327 * not mapped or we'll be perennially stuck with broken "." and ".."
3330 if (p->is_dir && blockcnt == 0 && blk == 0) {
3331 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
3332 if (pctx->errcode) {
3334 pctx->num = blockcnt;
3335 goto failed_add_dir_block;
3344 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
3349 * Simplistic fragmentation check. We merely require that the
3350 * file be contiguous. (Which can never be true for really
3351 * big files that are greater than a block group.)
3353 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
3354 if (p->previous_block+1 != blk) {
3355 if (ctx->options & E2F_OPT_FRAGCHECK) {
3363 printf(_("%6lu(%c): expecting %6lu "
3364 "got phys %6lu (blkcnt %lld)\n"),
3365 (unsigned long) pctx->ino, type,
3366 (unsigned long) p->previous_block+1,
3367 (unsigned long) blk,
3374 if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
3375 problem = PR_1_TOOBIG_DIR;
3376 if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
3377 problem = PR_1_TOOBIG_REG;
3378 if (!p->is_dir && !p->is_reg && blockcnt > 0)
3379 problem = PR_1_TOOBIG_SYMLINK;
3381 if (blk < fs->super->s_first_data_block ||
3382 blk >= ext2fs_blocks_count(fs->super))
3383 problem = PR_1_ILLEGAL_BLOCK_NUM;
3386 * If this IND/DIND/TIND block is squatting atop some critical metadata
3387 * (group descriptors, superblock, bitmap, inode table), any write to
3388 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
3389 * fix that and restart fsck.
3392 p->ino != EXT2_RESIZE_INO &&
3393 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
3395 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
3396 ctx->flags |= E2F_FLAG_RESTART_LATER;
3400 p->num_illegal_blocks++;
3402 * A bit of subterfuge here -- we're trying to fix a block
3403 * mapping, but the IND/DIND/TIND block could have collided
3404 * with some critical metadata. So, fix the in-core mapping so
3405 * iterate won't go insane, but return 0 instead of
3406 * BLOCK_CHANGED so that it won't write the remapping out to
3407 * our multiply linked block.
3409 * Even if we previously determined that an *IND block
3410 * conflicts with critical metadata, we must still try to
3411 * iterate the *IND block as if it is an *IND block to find and
3412 * mark the blocks it points to. Better to be overly cautious
3413 * with the used_blocks map so that we don't move the *IND
3414 * block to a block that's really in use!
3416 if (p->ino != EXT2_RESIZE_INO &&
3418 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3423 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
3424 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
3428 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
3430 set_latch_flags(PR_LATCH_BLOCK,
3435 pctx->blkcount = blockcnt;
3436 if (fix_problem(ctx, problem, pctx)) {
3437 blk = *block_nr = 0;
3438 ret_code = BLOCK_CHANGED;
3439 p->inode_modified = 1;
3441 * If the directory block is too big and is beyond the
3442 * end of the FS, don't bother trying to add it for
3443 * processing -- the kernel would never have created a
3444 * directory this large, and we risk an ENOMEM abort.
3445 * In any case, the toobig handler for extent-based
3446 * directories also doesn't feed toobig blocks to
3449 if (problem == PR_1_TOOBIG_DIR)
3456 if (p->ino == EXT2_RESIZE_INO) {
3458 * The resize inode has already be sanity checked
3459 * during pass #0 (the superblock checks). All we
3460 * have to do is mark the double indirect block as
3461 * being in use; all of the other blocks are handled
3462 * by mark_table_blocks()).
3464 if (blockcnt == BLOCK_COUNT_DIND)
3465 mark_block_used(ctx, blk);
3467 } else if (!(ctx->fs->cluster_ratio_bits &&
3468 p->previous_block &&
3469 (EXT2FS_B2C(ctx->fs, blk) ==
3470 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
3471 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
3472 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
3473 mark_block_used(ctx, blk);
3475 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
3476 p->last_block, blk, blockcnt)) {
3477 pctx->blk = blockcnt;
3479 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3480 mark_block_used(ctx, blk);
3481 mark_block_used(ctx, blk);
3484 p->last_block = blockcnt;
3485 p->previous_block = blk;
3487 if (p->is_dir && (blockcnt >= 0)) {
3488 while (++p->last_db_block < blockcnt) {
3489 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
3492 if (pctx->errcode) {
3494 pctx->num = p->last_db_block;
3495 goto failed_add_dir_block;
3498 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
3500 if (pctx->errcode) {
3502 pctx->num = blockcnt;
3503 failed_add_dir_block:
3504 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3505 /* Should never get here */
3506 ctx->flags |= E2F_FLAG_ABORT;
3513 static int process_bad_block(ext2_filsys fs,
3515 e2_blkcnt_t blockcnt,
3516 blk64_t ref_block EXT2FS_ATTR((unused)),
3517 int ref_offset EXT2FS_ATTR((unused)),
3520 struct process_block_struct *p;
3521 blk64_t blk = *block_nr;
3522 blk64_t first_block;
3524 struct problem_context *pctx;
3530 p = (struct process_block_struct *) priv_data;
3534 pctx->ino = EXT2_BAD_INO;
3536 pctx->blkcount = blockcnt;
3538 if ((blk < fs->super->s_first_data_block) ||
3539 (blk >= ext2fs_blocks_count(fs->super))) {
3540 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
3542 return BLOCK_CHANGED;
3548 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
3550 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
3552 return BLOCK_CHANGED;
3554 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3557 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
3560 return BLOCK_CHANGED;
3562 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3565 mark_block_used(ctx, blk);
3569 printf ("DEBUG: Marking %u as bad.\n", blk);
3571 ctx->fs_badblocks_count++;
3573 * If the block is not used, then mark it as used and return.
3574 * If it is already marked as found, this must mean that
3575 * there's an overlap between the filesystem table blocks
3576 * (bitmaps and inode table) and the bad block list.
3578 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
3579 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
3583 * Try to find the where the filesystem block was used...
3585 first_block = fs->super->s_first_data_block;
3587 for (i = 0; i < fs->group_desc_count; i++ ) {
3590 if (!ext2fs_bg_has_super(fs, i))
3592 if (blk == first_block) {
3594 if (fix_problem(ctx,
3595 PR_1_BAD_PRIMARY_SUPERBLOCK,
3598 return BLOCK_CHANGED;
3602 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
3605 if ((blk > first_block) &&
3606 (blk <= first_block + fs->desc_blocks)) {
3608 pctx->blk = *block_nr;
3609 if (fix_problem(ctx,
3610 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
3612 return BLOCK_CHANGED;
3616 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
3620 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
3621 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
3622 ctx->invalid_block_bitmap_flag[i]++;
3623 ctx->invalid_bitmaps++;
3627 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
3628 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
3629 ctx->invalid_inode_bitmap_flag[i]++;
3630 ctx->invalid_bitmaps++;
3634 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
3635 (blk < (ext2fs_inode_table_loc(fs, i) +
3636 fs->inode_blocks_per_group))) {
3638 * If there are bad blocks in the inode table,
3639 * the inode scan code will try to do
3640 * something reasonable automatically.
3644 first_block += fs->super->s_blocks_per_group;
3647 * If we've gotten to this point, then the only
3648 * possibility is that the bad block inode meta data
3649 * is using a bad block.
3651 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
3652 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
3653 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
3655 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
3657 return BLOCK_CHANGED;
3659 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3666 /* Warn user that the block wasn't claimed */
3667 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
3672 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
3673 const char *name, int num, blk64_t *new_block)
3675 ext2_filsys fs = ctx->fs;
3677 blk64_t old_block = *new_block;
3680 unsigned flexbg_size;
3683 struct problem_context pctx;
3685 clear_problem_context(&pctx);
3688 pctx.blk = old_block;
3692 * For flex_bg filesystems, first try to allocate the metadata
3693 * within the flex_bg, and if that fails then try finding the
3694 * space anywhere in the filesystem.
3696 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
3698 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
3699 flexbg = group / flexbg_size;
3700 first_block = ext2fs_group_first_block2(fs,
3701 flexbg_size * flexbg);
3702 last_grp = group | (flexbg_size - 1);
3703 if (last_grp >= fs->group_desc_count)
3704 last_grp = fs->group_desc_count - 1;
3705 last_block = ext2fs_group_last_block2(fs, last_grp);
3707 last_block = ext2fs_group_last_block2(fs, group);
3708 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
3709 num, ctx->block_found_map,
3711 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
3712 pctx.errcode = ext2fs_get_free_blocks2(fs,
3713 fs->super->s_first_data_block,
3714 ext2fs_blocks_count(fs->super),
3715 num, ctx->block_found_map, new_block);
3718 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
3719 ext2fs_unmark_valid(fs);
3720 ctx->flags |= E2F_FLAG_ABORT;
3723 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
3725 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
3726 ext2fs_unmark_valid(fs);
3727 ctx->flags |= E2F_FLAG_ABORT;
3730 ext2fs_mark_super_dirty(fs);
3731 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
3732 pctx.blk2 = *new_block;
3733 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
3734 PR_1_RELOC_TO), &pctx);
3736 for (i = 0; i < num; i++) {
3738 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
3740 pctx.errcode = io_channel_read_blk64(fs->io,
3741 old_block + i, 1, buf);
3743 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
3744 pctx.blk = (*new_block) + i;
3745 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
3748 pctx.blk = (*new_block) + i;
3749 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
3754 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
3756 ext2fs_free_mem(&buf);
3760 * This routine gets called at the end of pass 1 if bad blocks are
3761 * detected in the superblock, group descriptors, inode_bitmaps, or
3762 * block bitmaps. At this point, all of the blocks have been mapped
3763 * out, so we can try to allocate new block(s) to replace the bad
3766 static void handle_fs_bad_blocks(e2fsck_t ctx)
3768 ext2_filsys fs = ctx->fs;
3770 blk64_t first_block;
3773 for (i = 0; i < fs->group_desc_count; i++) {
3774 first_block = ext2fs_group_first_block2(fs, i);
3776 if (ctx->invalid_block_bitmap_flag[i]) {
3777 new_blk = ext2fs_block_bitmap_loc(fs, i);
3778 new_table_block(ctx, first_block, i, _("block bitmap"),
3780 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
3782 if (ctx->invalid_inode_bitmap_flag[i]) {
3783 new_blk = ext2fs_inode_bitmap_loc(fs, i);
3784 new_table_block(ctx, first_block, i, _("inode bitmap"),
3786 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
3788 if (ctx->invalid_inode_table_flag[i]) {
3789 new_blk = ext2fs_inode_table_loc(fs, i);
3790 new_table_block(ctx, first_block, i, _("inode table"),
3791 fs->inode_blocks_per_group,
3793 ext2fs_inode_table_loc_set(fs, i, new_blk);
3794 ctx->flags |= E2F_FLAG_RESTART;
3797 ctx->invalid_bitmaps = 0;
3801 * This routine marks all blocks which are used by the superblock,
3802 * group descriptors, inode bitmaps, and block bitmaps.
3804 static void mark_table_blocks(e2fsck_t ctx)
3806 ext2_filsys fs = ctx->fs;
3810 struct problem_context pctx;
3812 clear_problem_context(&pctx);
3814 for (i = 0; i < fs->group_desc_count; i++) {
3817 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
3818 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
3821 * Mark the blocks used for the inode table
3823 if (ext2fs_inode_table_loc(fs, i)) {
3824 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
3825 j < fs->inode_blocks_per_group;
3827 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3830 if (!ctx->invalid_inode_table_flag[i] &&
3832 PR_1_ITABLE_CONFLICT, &pctx)) {
3833 ctx->invalid_inode_table_flag[i]++;
3834 ctx->invalid_bitmaps++;
3837 ext2fs_mark_block_bitmap2(
3838 ctx->block_found_map, b);
3839 ext2fs_mark_block_bitmap2(
3840 ctx->block_metadata_map, b);
3846 * Mark block used for the block bitmap
3848 if (ext2fs_block_bitmap_loc(fs, i)) {
3849 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3850 ext2fs_block_bitmap_loc(fs, i))) {
3851 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
3852 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
3853 ctx->invalid_block_bitmap_flag[i]++;
3854 ctx->invalid_bitmaps++;
3857 ext2fs_mark_block_bitmap2(ctx->block_found_map,
3858 ext2fs_block_bitmap_loc(fs, i));
3859 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
3860 ext2fs_block_bitmap_loc(fs, i));
3864 * Mark block used for the inode bitmap
3866 if (ext2fs_inode_bitmap_loc(fs, i)) {
3867 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3868 ext2fs_inode_bitmap_loc(fs, i))) {
3869 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
3870 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
3871 ctx->invalid_inode_bitmap_flag[i]++;
3872 ctx->invalid_bitmaps++;
3875 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
3876 ext2fs_inode_bitmap_loc(fs, i));
3877 ext2fs_mark_block_bitmap2(ctx->block_found_map,
3878 ext2fs_inode_bitmap_loc(fs, i));
3885 * Thes subroutines short circuits ext2fs_get_blocks and
3886 * ext2fs_check_directory; we use them since we already have the inode
3887 * structure, so there's no point in letting the ext2fs library read
3890 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
3893 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3896 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3897 return EXT2_ET_CALLBACK_NOTHANDLED;
3899 for (i=0; i < EXT2_N_BLOCKS; i++)
3900 blocks[i] = ctx->stashed_inode->i_block[i];
3904 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
3905 struct ext2_inode *inode)
3907 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3909 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3910 return EXT2_ET_CALLBACK_NOTHANDLED;
3911 *inode = *ctx->stashed_inode;
3915 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
3916 struct ext2_inode *inode)
3918 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3920 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
3921 (inode != ctx->stashed_inode))
3922 *ctx->stashed_inode = *inode;
3923 return EXT2_ET_CALLBACK_NOTHANDLED;
3926 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
3928 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3930 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3931 return EXT2_ET_CALLBACK_NOTHANDLED;
3933 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
3934 return EXT2_ET_NO_DIRECTORY;
3938 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
3941 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3945 if (ctx->block_found_map) {
3946 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
3950 if (fs->block_map) {
3951 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
3952 ext2fs_mark_bb_dirty(fs);
3955 if (!fs->block_map) {
3956 retval = ext2fs_read_block_bitmap(fs);
3961 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
3970 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
3971 blk64_t len, blk64_t *pblk, blk64_t *plen)
3973 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3976 if (ctx->block_found_map)
3977 return ext2fs_new_range(fs, flags, goal, len,
3978 ctx->block_found_map, pblk, plen);
3980 if (!fs->block_map) {
3981 retval = ext2fs_read_block_bitmap(fs);
3986 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
3990 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
3992 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3994 /* Never free a critical metadata block */
3995 if (ctx->block_found_map &&
3996 ctx->block_metadata_map &&
3998 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
4001 if (ctx->block_found_map) {
4003 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4005 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
4009 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
4010 blk_t num, int inuse)
4012 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4014 /* Never free a critical metadata block */
4015 if (ctx->block_found_map &&
4016 ctx->block_metadata_map &&
4018 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
4021 if (ctx->block_found_map) {
4023 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
4026 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
4031 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
4033 ext2_filsys fs = ctx->fs;
4035 if (use_shortcuts) {
4036 fs->get_blocks = pass1_get_blocks;
4037 fs->check_directory = pass1_check_directory;
4038 fs->read_inode = pass1_read_inode;
4039 fs->write_inode = pass1_write_inode;
4040 ctx->stashed_ino = 0;
4043 fs->check_directory = 0;
4045 fs->write_inode = 0;
4049 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
4051 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
4052 ext2fs_set_block_alloc_stats_callback(ctx->fs,
4053 e2fsck_block_alloc_stats, 0);
4054 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
4055 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
4056 e2fsck_block_alloc_stats_range, NULL);