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 inodes are casefolded. (inode_casefold_map)
27 * - A bitmap of which blocks are in use. (block_found_map)
28 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
29 * - The data blocks of the directory inodes. (dir_map)
30 * - Ref counts for ea_inodes. (ea_inode_refs)
31 * - The encryption policy ID of each encrypted inode. (encrypted_files)
33 * Pass 1 is designed to stash away enough information so that the
34 * other passes should not need to read in the inode information
35 * during the normal course of a filesystem check. (Although if an
36 * inconsistency is detected, other passes may need to read in an
39 * Note that pass 1B will be invoked if there are any duplicate blocks
43 #define _GNU_SOURCE 1 /* get strnlen() */
52 #include <ext2fs/ext2_ext_attr.h>
57 #ifdef NO_INLINE_FUNCS
60 #define _INLINE_ inline
70 static int process_block(ext2_filsys fs, blk64_t *blocknr,
71 e2_blkcnt_t blockcnt, blk64_t ref_blk,
72 int ref_offset, void *priv_data);
73 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
74 e2_blkcnt_t blockcnt, blk64_t ref_blk,
75 int ref_offset, void *priv_data);
76 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
78 const struct ea_quota *ea_ibody_quota);
79 static void mark_table_blocks(e2fsck_t ctx);
80 static void alloc_bb_map(e2fsck_t ctx);
81 static void alloc_imagic_map(e2fsck_t ctx);
82 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
83 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino);
84 static void handle_fs_bad_blocks(e2fsck_t ctx);
85 static void process_inodes(e2fsck_t ctx, char *block_buf);
86 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
87 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
88 dgrp_t group, void * priv_data);
89 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
90 char *block_buf, int adjust_sign);
91 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
93 struct process_block_struct {
95 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
96 fragmented:1, compressed:1, bbcheck:1,
101 e2_blkcnt_t last_init_lblock;
102 e2_blkcnt_t last_db_block;
103 int num_illegal_blocks;
104 blk64_t previous_block;
105 struct ext2_inode *inode;
106 struct problem_context *pctx;
107 ext2fs_block_bitmap fs_meta_blocks;
110 struct extent_tree_info eti;
113 struct process_inode_block {
115 struct ea_quota ea_ibody_quota;
116 struct ext2_inode_large inode;
119 struct scan_callback_struct {
125 * For the inodes to process list.
127 static struct process_inode_block *inodes_to_process;
128 static int process_inode_count;
130 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
131 EXT2_MIN_BLOCK_LOG_SIZE + 1];
134 * Check to make sure a device inode is real. Returns 1 if the device
135 * checks out, 0 if not.
137 * Note: this routine is now also used to check FIFO's and Sockets,
138 * since they have the same requirement; the i_block fields should be
141 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
142 struct ext2_inode *inode)
147 * If the index or extents flag is set, then this is a bogus
150 if (inode->i_flags & (EXT2_INDEX_FL | EXT4_EXTENTS_FL))
154 * We should be able to do the test below all the time, but
155 * because the kernel doesn't forcibly clear the device
156 * inode's additional i_block fields, there are some rare
157 * occasions when a legitimate device inode will have non-zero
158 * additional i_block fields. So for now, we only complain
159 * when the immutable flag is set, which should never happen
160 * for devices. (And that's when the problem is caused, since
161 * you can't set or clear immutable flags for devices.) Once
162 * the kernel has been fixed we can change this...
164 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
165 for (i=4; i < EXT2_N_BLOCKS; i++)
166 if (inode->i_block[i])
173 * Check to make sure a symlink inode is real. Returns 1 if the symlink
174 * checks out, 0 if not.
176 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
177 struct ext2_inode *inode, char *buf)
182 if ((inode->i_size_high || inode->i_size == 0) ||
183 (inode->i_flags & EXT2_INDEX_FL))
186 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
189 if (inode->i_flags & EXT4_EXTENTS_FL)
191 if (ext2fs_inline_data_size(fs, ino, &inline_size))
193 if (inode->i_size != inline_size)
199 if (ext2fs_is_fast_symlink(inode)) {
200 if (inode->i_flags & EXT4_EXTENTS_FL)
202 buf = (char *)inode->i_block;
203 buflen = sizeof(inode->i_block);
205 ext2_extent_handle_t handle;
206 struct ext2_extent_info info;
207 struct ext2fs_extent extent;
211 if (inode->i_flags & EXT4_EXTENTS_FL) {
212 if (ext2fs_extent_open2(fs, ino, inode, &handle))
214 if (ext2fs_extent_get_info(handle, &info) ||
215 (info.num_entries != 1) ||
216 (info.max_depth != 0)) {
217 ext2fs_extent_free(handle);
220 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT,
222 (extent.e_lblk != 0) ||
223 (extent.e_len != 1)) {
224 ext2fs_extent_free(handle);
228 ext2fs_extent_free(handle);
230 blk = inode->i_block[0];
232 for (i = 1; i < EXT2_N_BLOCKS; i++)
233 if (inode->i_block[i])
237 if (blk < fs->super->s_first_data_block ||
238 blk >= ext2fs_blocks_count(fs->super))
241 if (io_channel_read_blk64(fs->io, blk, 1, buf))
244 buflen = fs->blocksize;
247 if (inode->i_flags & EXT4_ENCRYPT_FL)
248 len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
250 len = strnlen(buf, buflen);
255 if (len != inode->i_size)
261 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
263 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
264 static void check_extents_inlinedata(e2fsck_t ctx,
265 struct problem_context *pctx)
267 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
270 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
273 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
274 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
276 #undef BAD_SPECIAL_FLAGS
279 * If the immutable (or append-only) flag is set on the inode, offer
282 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
283 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
285 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
288 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
291 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
292 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
296 * If device, fifo or socket, check size is zero -- if not offer to
299 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
301 struct ext2_inode *inode = pctx->inode;
303 if (EXT2_I_SIZE(inode) == 0)
306 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
309 ext2fs_inode_size_set(ctx->fs, inode, 0);
310 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
314 * For a given size, calculate how many blocks would be charged towards quota.
316 static blk64_t size_to_quota_blocks(ext2_filsys fs, size_t size)
320 clusters = DIV_ROUND_UP(size, fs->blocksize << fs->cluster_ratio_bits);
321 return EXT2FS_C2B(fs, clusters);
325 * Check validity of EA inode. Return 0 if EA inode is valid, otherwise return
328 static problem_t check_large_ea_inode(e2fsck_t ctx,
329 struct ext2_ext_attr_entry *entry,
330 struct problem_context *pctx,
331 blk64_t *quota_blocks)
333 struct ext2_inode inode;
337 /* Check if inode is within valid range */
338 if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
339 (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
340 pctx->num = entry->e_value_inum;
341 return PR_1_ATTR_VALUE_EA_INODE;
344 e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
346 retval = ext2fs_ext_attr_hash_entry2(ctx->fs, entry, NULL, &hash);
348 com_err("check_large_ea_inode", retval,
349 _("while hashing entry with e_value_inum = %u"),
350 entry->e_value_inum);
354 if (hash == entry->e_hash) {
355 *quota_blocks = size_to_quota_blocks(ctx->fs,
356 entry->e_value_size);
358 /* This might be an old Lustre-style ea_inode reference. */
359 if (inode.i_mtime == pctx->ino &&
360 inode.i_generation == pctx->inode->i_generation) {
363 /* If target inode is also missing EA_INODE flag,
364 * this is likely to be a bad reference.
366 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
367 pctx->num = entry->e_value_inum;
368 return PR_1_ATTR_VALUE_EA_INODE;
370 pctx->num = entry->e_hash;
371 return PR_1_ATTR_HASH;
376 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
377 pctx->num = entry->e_value_inum;
378 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
379 inode.i_flags |= EXT4_EA_INODE_FL;
380 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
383 return PR_1_ATTR_NO_EA_INODE_FL;
389 static void inc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx,
390 struct ext2_ext_attr_entry *first, void *end)
392 struct ext2_ext_attr_entry *entry;
395 (void *)entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry);
396 entry = EXT2_EXT_ATTR_NEXT(entry)) {
397 if (!entry->e_value_inum)
399 if (!ctx->ea_inode_refs) {
400 pctx->errcode = ea_refcount_create(0,
401 &ctx->ea_inode_refs);
404 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
405 ctx->flags |= E2F_FLAG_ABORT;
409 ea_refcount_increment(ctx->ea_inode_refs, entry->e_value_inum,
414 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx,
415 struct ea_quota *ea_ibody_quota)
417 struct ext2_super_block *sb = ctx->fs->super;
418 struct ext2_inode_large *inode;
419 struct ext2_ext_attr_entry *entry;
420 char *start, *header, *end;
421 unsigned int storage_size, remain;
422 problem_t problem = 0;
425 ea_ibody_quota->blocks = 0;
426 ea_ibody_quota->inodes = 0;
428 inode = (struct ext2_inode_large *) pctx->inode;
429 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
430 inode->i_extra_isize;
431 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
432 inode->i_extra_isize;
433 end = header + storage_size;
434 start = header + sizeof(__u32);
435 entry = (struct ext2_ext_attr_entry *) start;
437 /* scan all entry's headers first */
439 /* take finish entry 0UL into account */
440 remain = storage_size - sizeof(__u32);
442 region = region_create(0, storage_size);
444 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
446 ctx->flags |= E2F_FLAG_ABORT;
449 if (region_allocate(region, 0, sizeof(__u32))) {
450 problem = PR_1_INODE_EA_ALLOC_COLLISION;
454 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
455 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
458 if (region_allocate(region, (char *)entry - (char *)header,
459 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
460 problem = PR_1_INODE_EA_ALLOC_COLLISION;
464 /* header eats this space */
465 remain -= sizeof(struct ext2_ext_attr_entry);
467 /* is attribute name valid? */
468 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
469 pctx->num = entry->e_name_len;
470 problem = PR_1_ATTR_NAME_LEN;
474 /* attribute len eats this space */
475 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
477 if (entry->e_value_inum == 0) {
478 /* check value size */
479 if (entry->e_value_size > remain) {
480 pctx->num = entry->e_value_size;
481 problem = PR_1_ATTR_VALUE_SIZE;
485 if (entry->e_value_size &&
486 region_allocate(region,
487 sizeof(__u32) + entry->e_value_offs,
489 entry->e_value_size))) {
490 problem = PR_1_INODE_EA_ALLOC_COLLISION;
494 hash = ext2fs_ext_attr_hash_entry(entry,
495 start + entry->e_value_offs);
497 /* e_hash may be 0 in older inode's ea */
498 if (entry->e_hash != 0 && entry->e_hash != hash) {
499 pctx->num = entry->e_hash;
500 problem = PR_1_ATTR_HASH;
504 blk64_t quota_blocks;
506 problem = check_large_ea_inode(ctx, entry, pctx,
511 ea_ibody_quota->blocks += quota_blocks;
512 ea_ibody_quota->inodes++;
515 /* If EA value is stored in external inode then it does not
516 * consume space here */
517 if (entry->e_value_inum == 0)
518 remain -= entry->e_value_size;
520 entry = EXT2_EXT_ATTR_NEXT(entry);
523 if (region_allocate(region, (char *)entry - (char *)header,
525 problem = PR_1_INODE_EA_ALLOC_COLLISION;
532 * it seems like a corruption. it's very unlikely we could repair
533 * EA(s) in automatic fashion -bzzz
535 if (problem == 0 || !fix_problem(ctx, problem, pctx)) {
536 inc_ea_inode_refs(ctx, pctx,
537 (struct ext2_ext_attr_entry *)start, end);
541 /* simply remove all possible EA(s) */
542 *((__u32 *)header) = 0UL;
543 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
544 EXT2_INODE_SIZE(sb), "pass1");
545 ea_ibody_quota->blocks = 0;
546 ea_ibody_quota->inodes = 0;
549 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
550 return (xtime & (1U << 31)) != 0 &&
551 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
554 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
555 check_inode_extra_negative_epoch(inode->i_##xtime, \
556 inode->i_##xtime##_extra)
558 /* When today's date is earlier than 2242, we assume that atimes,
559 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
560 * actually pre-1970 dates mis-encoded.
562 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
564 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx,
565 struct ea_quota *ea_ibody_quota)
567 struct ext2_super_block *sb = ctx->fs->super;
568 struct ext2_inode_large *inode;
572 ea_ibody_quota->blocks = 0;
573 ea_ibody_quota->inodes = 0;
575 inode = (struct ext2_inode_large *) pctx->inode;
576 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
577 /* this isn't large inode. so, nothing to check */
582 printf("inode #%u, i_extra_size %d\n", pctx->ino,
583 inode->i_extra_isize);
585 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
586 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
587 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
589 * For now we will allow i_extra_isize to be 0, but really
590 * implementations should never allow i_extra_isize to be 0
592 if (inode->i_extra_isize &&
593 (inode->i_extra_isize < min || inode->i_extra_isize > max ||
594 inode->i_extra_isize & 3)) {
595 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
597 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
598 inode->i_extra_isize = sb->s_want_extra_isize;
600 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
601 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
602 EXT2_INODE_SIZE(sb), "pass1");
605 /* check if there is no place for an EA header */
606 if (inode->i_extra_isize >= max - sizeof(__u32))
609 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
610 inode->i_extra_isize);
611 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
612 /* it seems inode has an extended attribute(s) in body */
613 check_ea_in_inode(ctx, pctx, ea_ibody_quota);
617 * If the inode's extended atime (ctime, crtime, mtime) is stored in
618 * the old, invalid format, repair it.
620 if (((sizeof(time_t) <= 4) ||
621 (((sizeof(time_t) > 4) &&
622 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
623 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
624 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
625 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
626 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
628 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
631 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
632 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
633 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
634 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
635 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
636 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
637 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
638 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
639 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
640 EXT2_INODE_SIZE(sb), "pass1");
646 * Check to see if the inode might really be a directory, despite i_mode
648 * This is a lot of complexity for something for which I'm not really
649 * convinced happens frequently in the wild. If for any reason this
650 * causes any problems, take this code out.
651 * [tytso:20070331.0827EDT]
653 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
656 struct ext2_inode *inode = pctx->inode;
657 struct ext2_dir_entry *dirent;
660 unsigned int i, rec_len, not_device = 0;
665 * If the mode looks OK, we believe it. If the first block in
666 * the i_block array is 0, this cannot be a directory. If the
667 * inode is extent-mapped, it is still the case that the latter
668 * cannot be 0 - the magic number in the extent header would make
671 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
672 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
676 * Check the block numbers in the i_block array for validity:
677 * zero blocks are skipped (but the first one cannot be zero -
678 * see above), other blocks are checked against the first and
679 * max data blocks (from the the superblock) and against the
680 * block bitmap. Any invalid block found means this cannot be
683 * If there are non-zero blocks past the fourth entry, then
684 * this cannot be a device file: we remember that for the next
687 * For extent mapped files, we don't do any sanity checking:
688 * just try to get the phys block of logical block 0 and run
691 * For inline data files, we just try to get the size of inline
692 * data. If it's true, we will treat it as a directory.
695 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
696 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
697 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
700 unsigned int rec_len2;
701 struct ext2_dir_entry de;
703 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
706 * If the size isn't a multiple of 4, it's probably not a
712 * If the first 10 bytes don't look like a directory entry,
713 * it's probably not a directory.
715 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
716 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
717 EXT2_DIR_REC_LEN(0));
718 dotdot = ext2fs_le32_to_cpu(dotdot);
719 de.inode = ext2fs_le32_to_cpu(de.inode);
720 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
721 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
722 if (dotdot >= ctx->fs->super->s_inodes_count ||
723 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
724 dotdot != EXT2_ROOT_INO) ||
725 de.inode >= ctx->fs->super->s_inodes_count ||
726 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
728 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
729 EXT4_INLINE_DATA_DOTDOT_SIZE)
731 /* device files never have a "system.data" entry */
733 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
735 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
738 /* device files are never extent mapped */
741 for (i=0; i < EXT2_N_BLOCKS; i++) {
742 blk = inode->i_block[i];
748 if (blk < ctx->fs->super->s_first_data_block ||
749 blk >= ext2fs_blocks_count(ctx->fs->super) ||
750 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
752 return; /* Invalid block, can't be dir */
754 blk = inode->i_block[0];
758 * If the mode says this is a device file and the i_links_count field
759 * is sane and we have not ruled it out as a device file previously,
760 * we declare it a device file, not a directory.
762 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
763 (inode->i_links_count == 1) && !not_device)
766 /* read the first block */
767 ehandler_operation(_("reading directory block"));
768 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
769 ehandler_operation(0);
773 dirent = (struct ext2_dir_entry *) buf;
774 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
777 if ((ext2fs_dirent_name_len(dirent) != 1) ||
778 (dirent->name[0] != '.') ||
779 (dirent->inode != pctx->ino) ||
782 (rec_len >= ctx->fs->blocksize - 12))
785 dirent = (struct ext2_dir_entry *) (buf + rec_len);
786 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
789 if ((ext2fs_dirent_name_len(dirent) != 2) ||
790 (dirent->name[0] != '.') ||
791 (dirent->name[1] != '.') ||
797 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
798 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
799 e2fsck_write_inode_full(ctx, pctx->ino, inode,
800 EXT2_INODE_SIZE(ctx->fs->super),
801 "check_is_really_dir");
805 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
806 int flags, ext2_icount_t hint,
809 unsigned int threshold;
810 unsigned int save_type;
818 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
820 profile_get_uint(ctx->profile, "scratch_files",
821 "numdirs_threshold", 0, 0, &threshold);
822 profile_get_boolean(ctx->profile, "scratch_files",
823 "icount", 0, 1, &enable);
825 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
827 num_dirs = 1024; /* Guess */
829 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
830 (!threshold || num_dirs > threshold)) {
831 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
836 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
838 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
839 flags |= EXT2_ICOUNT_OPT_FULLMAP;
840 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
841 ctx->fs->default_bitmap_type = save_type;
845 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
847 struct problem_context *pctx)
850 struct ext2_inode_large inode;
853 * Reread inode. If we don't see checksum error, then this inode
854 * has been fixed elsewhere.
856 ctx->stashed_ino = 0;
857 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
859 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
865 * Checksum still doesn't match. That implies that the inode passes
866 * all the sanity checks, so maybe the checksum is simply corrupt.
867 * See if the user will go for fixing that.
869 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
872 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
877 static void reserve_block_for_root_repair(e2fsck_t ctx)
881 ext2_filsys fs = ctx->fs;
883 ctx->root_repair_block = 0;
884 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
887 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
890 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
891 ctx->root_repair_block = blk;
894 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
898 ext2_filsys fs = ctx->fs;
899 static const char name[] = "lost+found";
902 ctx->lnf_repair_block = 0;
903 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
906 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
909 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
910 ctx->lnf_repair_block = blk;
913 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
917 struct ext2_xattr_handle *handle;
920 retval = ext2fs_xattrs_open(fs, ino, &handle);
924 retval = ext2fs_xattrs_read(handle);
928 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
933 (void) ext2fs_xattrs_close(&handle);
937 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
938 struct problem_context *pctx,
945 * If the inode failed the checksum and the user didn't
946 * clear the inode, test the checksum again -- if it still
947 * fails, ask the user if the checksum should be corrected.
949 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
951 ctx->flags |= E2F_FLAG_ABORT;
953 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
955 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
956 if ((ctx)->flags & E2F_FLAG_ABORT) \
960 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
965 for (i = 0; i < EXT2_N_BLOCKS; i++) {
966 x = inode->i_block[i];
967 #ifdef WORDS_BIGENDIAN
968 x = ext2fs_swab32(x);
970 if (x >= ext2fs_blocks_count(fs->super))
978 * Figure out what to do with an inode that has both extents and inline data
979 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
981 static int fix_inline_data_extents_file(e2fsck_t ctx,
983 struct ext2_inode *inode,
985 struct problem_context *pctx)
987 size_t max_inline_ea_size;
988 ext2_filsys fs = ctx->fs;
991 /* Both feature flags not set? Just run the regular checks */
992 if (!ext2fs_has_feature_extents(fs->super) &&
993 !ext2fs_has_feature_inline_data(fs->super))
996 /* Clear both flags if it's a special file */
997 if (LINUX_S_ISCHR(inode->i_mode) ||
998 LINUX_S_ISBLK(inode->i_mode) ||
999 LINUX_S_ISFIFO(inode->i_mode) ||
1000 LINUX_S_ISSOCK(inode->i_mode)) {
1001 check_extents_inlinedata(ctx, pctx);
1005 /* If it looks like an extent tree, try to clear inlinedata */
1006 if (ext2fs_extent_header_verify(inode->i_block,
1007 sizeof(inode->i_block)) == 0 &&
1008 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1009 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1014 /* If it looks short enough to be inline data, try to clear extents */
1015 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1016 max_inline_ea_size = inode_size -
1017 (EXT2_GOOD_OLD_INODE_SIZE +
1018 ((struct ext2_inode_large *)inode)->i_extra_isize);
1020 max_inline_ea_size = 0;
1021 if (EXT2_I_SIZE(inode) <
1022 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1023 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1024 inode->i_flags &= ~EXT4_EXTENTS_FL;
1030 * Too big for inline data, but no evidence of extent tree -
1031 * maybe it's a block map file? If the mappings all look valid?
1033 if (could_be_block_map(fs, inode) &&
1034 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1035 #ifdef WORDS_BIGENDIAN
1038 for (i = 0; i < EXT2_N_BLOCKS; i++)
1039 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1042 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1047 /* Oh well, just clear the busted inode. */
1048 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1049 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1055 e2fsck_write_inode(ctx, ino, inode, "pass1");
1060 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1062 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1063 dgrp_t start = *group, grp;
1064 blk64_t blocks_to_read = 0;
1065 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1067 if (ctx->readahead_kb == 0)
1070 /* Keep iterating groups until we have enough to readahead */
1071 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1072 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
1073 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1075 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1076 ext2fs_bg_itable_unused(ctx->fs, grp);
1077 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1079 if (blocks_to_read * ctx->fs->blocksize >
1080 ctx->readahead_kb * 1024)
1084 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1086 if (err == EAGAIN) {
1087 ctx->readahead_kb /= 2;
1093 /* Error; disable itable readahead */
1094 *group = ctx->fs->group_desc_count;
1095 *next_ino = ctx->fs->super->s_inodes_count;
1098 * Don't do more readahead until we've reached the first inode
1099 * of the last inode scan buffer block for the last group.
1102 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1103 ctx->inode_buffer_blocks :
1104 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1105 ctx->fs->blocksize /
1106 EXT2_INODE_SIZE(ctx->fs->super);
1108 *next_ino = inodes_in_group -
1109 (inodes_in_group % inodes_per_buffer) + 1 +
1110 (grp * ctx->fs->super->s_inodes_per_group);
1115 * Check if the passed ino is one of the used superblock quota inodes.
1117 * Before the quota inodes were journaled, older superblock quota inodes
1118 * were just regular files in the filesystem and not reserved inodes. This
1119 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1120 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1122 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1124 enum quota_type qtype;
1126 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1127 if (*quota_sb_inump(sb, qtype) == ino)
1134 * Check if the passed ino is one of the reserved quota inodes.
1135 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1136 * inodes. These inodes may or may not be in use by the quota feature.
1138 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1140 enum quota_type qtype;
1142 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1143 if (quota_type2inum(qtype, fs->super) == ino)
1149 void e2fsck_pass1(e2fsck_t ctx)
1153 ext2_filsys fs = ctx->fs;
1155 struct ext2_inode *inode = NULL;
1156 ext2_inode_scan scan = NULL;
1157 char *block_buf = NULL;
1158 #ifdef RESOURCE_TRACK
1159 struct resource_track rtrack;
1161 unsigned char frag, fsize;
1162 struct problem_context pctx;
1163 struct scan_callback_struct scan_struct;
1164 struct ext2_super_block *sb = ctx->fs->super;
1166 const char *eop_next_inode = _("getting next inode from scan");
1167 int imagic_fs, extent_fs, inlinedata_fs, casefold_fs;
1168 int low_dtime_check = 1;
1169 unsigned int inode_size = EXT2_INODE_SIZE(fs->super);
1170 unsigned int bufsize;
1171 int failed_csum = 0;
1172 ext2_ino_t ino_threshold = 0;
1173 dgrp_t ra_group = 0;
1174 struct ea_quota ea_ibody_quota;
1176 init_resource_track(&rtrack, ctx->fs->io);
1177 clear_problem_context(&pctx);
1179 /* If we can do readahead, figure out how many groups to pull in. */
1180 if (!e2fsck_can_readahead(ctx->fs))
1181 ctx->readahead_kb = 0;
1182 else if (ctx->readahead_kb == ~0ULL)
1183 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1184 pass1_readahead(ctx, &ra_group, &ino_threshold);
1186 if (!(ctx->options & E2F_OPT_PREEN))
1187 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1189 if (ext2fs_has_feature_dir_index(fs->super) &&
1190 !(ctx->options & E2F_OPT_NO)) {
1191 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1192 ctx->dirs_to_hash = 0;
1196 mtrace_print("Pass 1");
1199 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1201 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1202 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1203 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1204 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1205 max_sizes = (max_sizes * (1UL << i));
1206 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1210 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1211 extent_fs = ext2fs_has_feature_extents(sb);
1212 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1213 casefold_fs = ext2fs_has_feature_casefold(sb);
1216 * Allocate bitmaps structures
1218 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1219 EXT2FS_BMAP64_RBTREE,
1221 &ctx->inode_used_map);
1224 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1225 ctx->flags |= E2F_FLAG_ABORT;
1228 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1229 _("directory inode map"),
1230 EXT2FS_BMAP64_AUTODIR,
1231 "inode_dir_map", &ctx->inode_dir_map);
1234 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1235 ctx->flags |= E2F_FLAG_ABORT;
1238 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1239 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1240 "inode_reg_map", &ctx->inode_reg_map);
1243 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1244 ctx->flags |= E2F_FLAG_ABORT;
1247 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1248 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1249 "block_found_map", &ctx->block_found_map);
1252 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1253 ctx->flags |= E2F_FLAG_ABORT;
1256 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1257 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1258 "block_metadata_map", &ctx->block_metadata_map);
1261 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1262 ctx->flags |= E2F_FLAG_ABORT;
1267 e2fsck_allocate_inode_bitmap(fs,
1268 _("inode casefold map"),
1269 EXT2FS_BMAP64_RBTREE,
1270 "inode_casefold_map",
1271 &ctx->inode_casefold_map);
1274 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1275 ctx->flags |= E2F_FLAG_ABORT;
1279 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1280 &ctx->inode_link_info);
1282 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1283 ctx->flags |= E2F_FLAG_ABORT;
1286 bufsize = inode_size;
1287 if (bufsize < sizeof(struct ext2_inode_large))
1288 bufsize = sizeof(struct ext2_inode_large);
1289 inode = (struct ext2_inode *)
1290 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1292 inodes_to_process = (struct process_inode_block *)
1293 e2fsck_allocate_memory(ctx,
1294 (ctx->process_inode_size *
1295 sizeof(struct process_inode_block)),
1296 "array of inodes to process");
1297 process_inode_count = 0;
1299 pctx.errcode = ext2fs_init_dblist(fs, 0);
1301 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1302 ctx->flags |= E2F_FLAG_ABORT;
1307 * If the last orphan field is set, clear it, since the pass1
1308 * processing will automatically find and clear the orphans.
1309 * In the future, we may want to try using the last_orphan
1310 * linked list ourselves, but for now, we clear it so that the
1311 * ext3 mount code won't get confused.
1313 if (!(ctx->options & E2F_OPT_READONLY)) {
1314 if (fs->super->s_last_orphan) {
1315 fs->super->s_last_orphan = 0;
1316 ext2fs_mark_super_dirty(fs);
1320 mark_table_blocks(ctx);
1321 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1322 &ctx->block_found_map);
1324 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1325 ctx->flags |= E2F_FLAG_ABORT;
1328 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1329 "block interate buffer");
1330 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1331 e2fsck_use_inode_shortcuts(ctx, 1);
1332 e2fsck_intercept_block_allocations(ctx);
1333 old_op = ehandler_operation(_("opening inode scan"));
1334 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1336 ehandler_operation(old_op);
1338 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1339 ctx->flags |= E2F_FLAG_ABORT;
1342 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1343 EXT2_SF_WARN_GARBAGE_INODES, 0);
1344 ctx->stashed_inode = inode;
1345 scan_struct.ctx = ctx;
1346 scan_struct.block_buf = block_buf;
1347 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1348 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1349 ctx->fs->group_desc_count)))
1351 if ((fs->super->s_wtime &&
1352 fs->super->s_wtime < fs->super->s_inodes_count) ||
1353 (fs->super->s_mtime &&
1354 fs->super->s_mtime < fs->super->s_inodes_count) ||
1355 (fs->super->s_mkfs_time &&
1356 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1357 low_dtime_check = 0;
1359 if (ext2fs_has_feature_mmp(fs->super) &&
1360 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1361 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1362 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1363 fs->super->s_mmp_block);
1365 /* Set up ctx->lost_and_found if possible */
1366 (void) e2fsck_get_lost_and_found(ctx, 0);
1369 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1370 if (e2fsck_mmp_update(fs))
1371 fatal_error(ctx, 0);
1373 old_op = ehandler_operation(eop_next_inode);
1374 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1376 if (ino > ino_threshold)
1377 pass1_readahead(ctx, &ra_group, &ino_threshold);
1378 ehandler_operation(old_op);
1379 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1381 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1383 * If badblocks says badblocks is bad, offer to clear
1384 * the list, update the in-core bb list, and restart
1387 if (ino == EXT2_BAD_INO &&
1388 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1392 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1393 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1394 ctx->fs->badblocks = NULL;
1395 err = ext2fs_read_bb_inode(ctx->fs,
1396 &ctx->fs->badblocks);
1398 fix_problem(ctx, PR_1_ISCAN_ERROR,
1400 ctx->flags |= E2F_FLAG_ABORT;
1402 ctx->flags |= E2F_FLAG_RESTART;
1405 if (!ctx->inode_bb_map)
1407 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1408 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1412 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1413 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1414 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1415 ctx->flags |= E2F_FLAG_ABORT;
1422 ctx->stashed_ino = ino;
1424 /* Clear trashed inode? */
1425 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1426 inode->i_links_count > 0 &&
1427 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1429 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1431 failed_csum = pctx.errcode != 0;
1434 * Check for inodes who might have been part of the
1435 * orphaned list linked list. They should have gotten
1436 * dealt with by now, unless the list had somehow been
1439 * FIXME: In the future, inodes which are still in use
1440 * (and which are therefore) pending truncation should
1441 * be handled specially. Right now we just clear the
1442 * dtime field, and the normal e2fsck handling of
1443 * inodes where i_size and the inode blocks are
1444 * inconsistent is to fix i_size, instead of releasing
1445 * the extra blocks. This won't catch the inodes that
1446 * was at the end of the orphan list, but it's better
1447 * than nothing. The right answer is that there
1448 * shouldn't be any bugs in the orphan list handling. :-)
1450 if (inode->i_dtime && low_dtime_check &&
1451 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1452 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1453 inode->i_dtime = inode->i_links_count ?
1455 e2fsck_write_inode(ctx, ino, inode,
1461 if (inode->i_links_count) {
1462 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1463 ino, inode->i_links_count);
1465 pctx.num = inode->i_links_count;
1466 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1467 ctx->flags |= E2F_FLAG_ABORT;
1470 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1471 !quota_inum_is_reserved(fs, ino)) {
1472 if (!inode->i_dtime && inode->i_mode) {
1473 if (fix_problem(ctx,
1474 PR_1_ZERO_DTIME, &pctx)) {
1475 inode->i_dtime = ctx->now;
1476 e2fsck_write_inode(ctx, ino, inode,
1481 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1485 if ((inode->i_flags & EXT4_CASEFOLD_FL) &&
1486 ((!LINUX_S_ISDIR(inode->i_mode) &&
1487 fix_problem(ctx, PR_1_CASEFOLD_NONDIR, &pctx)) ||
1489 fix_problem(ctx, PR_1_CASEFOLD_FEATURE, &pctx)))) {
1490 inode->i_flags &= ~EXT4_CASEFOLD_FL;
1491 e2fsck_write_inode(ctx, ino, inode, "pass1");
1494 /* Conflicting inlinedata/extents inode flags? */
1495 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1496 (inode->i_flags & EXT4_EXTENTS_FL)) {
1497 int res = fix_inline_data_extents_file(ctx, ino, inode,
1501 /* skip FINISH_INODE_LOOP */
1506 /* Test for incorrect inline_data flags settings. */
1507 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1508 (ino >= EXT2_FIRST_INODE(fs->super))) {
1511 pctx.errcode = get_inline_data_ea_size(fs, ino, &size);
1512 if (!pctx.errcode &&
1513 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1514 ext2fs_set_feature_inline_data(sb);
1515 ext2fs_mark_super_dirty(fs);
1517 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1518 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1519 /* skip FINISH_INODE_LOOP */
1524 /* Test for inline data flag but no attr */
1525 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1526 (ino >= EXT2_FIRST_INODE(fs->super))) {
1533 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1534 err = get_inline_data_ea_size(fs, ino, &size);
1535 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1536 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1540 /* Everything is awesome... */
1542 case EXT2_ET_BAD_EA_BLOCK_NUM:
1543 case EXT2_ET_BAD_EA_HASH:
1544 case EXT2_ET_BAD_EA_HEADER:
1545 case EXT2_ET_EA_BAD_NAME_LEN:
1546 case EXT2_ET_EA_BAD_VALUE_SIZE:
1547 case EXT2_ET_EA_KEY_NOT_FOUND:
1548 case EXT2_ET_EA_NO_SPACE:
1549 case EXT2_ET_MISSING_EA_FEATURE:
1550 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1551 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1552 case EXT2_ET_INLINE_DATA_NO_SPACE:
1553 case EXT2_ET_NO_INLINE_DATA:
1554 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1555 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1556 case EXT2_ET_EA_INODE_CORRUPTED:
1557 /* broken EA or no system.data EA; truncate */
1558 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1560 err = ext2fs_inode_size_set(fs, inode, 0);
1563 ctx->flags |= E2F_FLAG_ABORT;
1566 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1567 memset(&inode->i_block, 0,
1568 sizeof(inode->i_block));
1569 e2fsck_write_inode(ctx, ino, inode,
1575 /* Some other kind of non-xattr error? */
1577 ctx->flags |= E2F_FLAG_ABORT;
1583 * Test for incorrect extent flag settings.
1585 * On big-endian machines we must be careful:
1586 * When the inode is read, the i_block array is not swapped
1587 * if the extent flag is set. Therefore if we are testing
1588 * for or fixing a wrongly-set flag, we must potentially
1589 * (un)swap before testing, or after fixing.
1593 * In this case the extents flag was set when read, so
1594 * extent_header_verify is ok. If the inode is cleared,
1595 * no need to swap... so no extra swapping here.
1597 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1598 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1599 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1600 if ((ext2fs_extent_header_verify(inode->i_block,
1601 sizeof(inode->i_block)) == 0) &&
1602 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1603 ext2fs_set_feature_extents(sb);
1604 ext2fs_mark_super_dirty(fs);
1606 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1608 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1609 if (ino == EXT2_BAD_INO)
1610 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1612 /* skip FINISH_INODE_LOOP */
1618 * For big-endian machines:
1619 * If the inode didn't have the extents flag set when it
1620 * was read, then the i_blocks array was swapped. To test
1621 * as an extents header, we must swap it back first.
1622 * IF we then set the extents flag, the entire i_block
1623 * array must be un/re-swapped to make it proper extents data.
1625 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1626 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1627 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1628 (LINUX_S_ISREG(inode->i_mode) ||
1629 LINUX_S_ISDIR(inode->i_mode))) {
1631 #ifdef WORDS_BIGENDIAN
1632 __u32 tmp_block[EXT2_N_BLOCKS];
1634 for (i = 0; i < EXT2_N_BLOCKS; i++)
1635 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1638 ehp = inode->i_block;
1640 if ((ext2fs_extent_header_verify(ehp,
1641 sizeof(inode->i_block)) == 0) &&
1642 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1643 inode->i_flags |= EXT4_EXTENTS_FL;
1644 #ifdef WORDS_BIGENDIAN
1645 memcpy(inode->i_block, tmp_block,
1646 sizeof(inode->i_block));
1648 e2fsck_write_inode(ctx, ino, inode, "pass1");
1653 if (ino == EXT2_BAD_INO) {
1654 struct process_block_struct pb;
1656 if ((failed_csum || inode->i_mode || inode->i_uid ||
1657 inode->i_gid || inode->i_links_count ||
1658 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1659 inode->i_file_acl) &&
1660 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1661 memset(inode, 0, sizeof(struct ext2_inode));
1662 e2fsck_write_inode(ctx, ino, inode,
1667 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1668 &pb.fs_meta_blocks);
1671 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1672 ctx->flags |= E2F_FLAG_ABORT;
1675 pb.ino = EXT2_BAD_INO;
1676 pb.num_blocks = pb.last_block = 0;
1677 pb.last_db_block = -1;
1678 pb.num_illegal_blocks = 0;
1679 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1680 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1684 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1685 block_buf, process_bad_block, &pb);
1686 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1688 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1689 ctx->flags |= E2F_FLAG_ABORT;
1693 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1694 ctx->flags |= E2F_FLAG_ABORT;
1697 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1698 clear_problem_context(&pctx);
1699 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1701 } else if (ino == EXT2_ROOT_INO) {
1703 * Make sure the root inode is a directory; if
1704 * not, offer to clear it. It will be
1705 * regenerated in pass #3.
1707 if (!LINUX_S_ISDIR(inode->i_mode)) {
1708 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1712 * If dtime is set, offer to clear it. mke2fs
1713 * version 0.2b created filesystems with the
1714 * dtime field set for the root and lost+found
1715 * directories. We won't worry about
1716 * /lost+found, since that can be regenerated
1717 * easily. But we will fix the root directory
1718 * as a special case.
1720 if (inode->i_dtime && inode->i_links_count) {
1721 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1723 e2fsck_write_inode(ctx, ino, inode,
1728 } else if (ino == EXT2_JOURNAL_INO) {
1729 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1730 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1731 if (!LINUX_S_ISREG(inode->i_mode) &&
1732 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1734 inode->i_mode = LINUX_S_IFREG;
1735 e2fsck_write_inode(ctx, ino, inode,
1739 check_blocks(ctx, &pctx, block_buf, NULL);
1740 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1743 if ((inode->i_links_count ||
1744 inode->i_blocks || inode->i_block[0]) &&
1745 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1747 memset(inode, 0, inode_size);
1748 ext2fs_icount_store(ctx->inode_link_info,
1750 e2fsck_write_inode_full(ctx, ino, inode,
1751 inode_size, "pass1");
1754 } else if (quota_inum_is_reserved(fs, ino)) {
1755 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1756 if (ext2fs_has_feature_quota(fs->super) &&
1757 quota_inum_is_super(fs->super, ino)) {
1758 if (!LINUX_S_ISREG(inode->i_mode) &&
1759 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1761 inode->i_mode = LINUX_S_IFREG;
1762 e2fsck_write_inode(ctx, ino, inode,
1766 check_blocks(ctx, &pctx, block_buf, NULL);
1767 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1770 if ((inode->i_links_count ||
1771 inode->i_blocks || inode->i_block[0]) &&
1772 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1774 memset(inode, 0, inode_size);
1775 ext2fs_icount_store(ctx->inode_link_info,
1777 e2fsck_write_inode_full(ctx, ino, inode,
1778 inode_size, "pass1");
1781 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1782 problem_t problem = 0;
1784 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1785 if (ino == EXT2_BOOT_LOADER_INO) {
1786 if (LINUX_S_ISDIR(inode->i_mode))
1787 problem = PR_1_RESERVED_BAD_MODE;
1788 } else if (ino == EXT2_RESIZE_INO) {
1789 if (inode->i_mode &&
1790 !LINUX_S_ISREG(inode->i_mode))
1791 problem = PR_1_RESERVED_BAD_MODE;
1793 if (inode->i_mode != 0)
1794 problem = PR_1_RESERVED_BAD_MODE;
1797 if (fix_problem(ctx, problem, &pctx)) {
1799 e2fsck_write_inode(ctx, ino, inode,
1804 check_blocks(ctx, &pctx, block_buf, NULL);
1805 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1809 if (!inode->i_links_count) {
1810 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1814 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1815 * deleted files. Oops.
1817 * Since all new ext2 implementations get this right,
1818 * we now assume that the case of non-zero
1819 * i_links_count and non-zero dtime means that we
1820 * should keep the file, not delete it.
1823 if (inode->i_dtime) {
1824 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1826 e2fsck_write_inode(ctx, ino, inode, "pass1");
1831 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1832 switch (fs->super->s_creator_os) {
1834 frag = inode->osd2.hurd2.h_i_frag;
1835 fsize = inode->osd2.hurd2.h_i_fsize;
1841 if (inode->i_faddr || frag || fsize ||
1842 (!ext2fs_has_feature_largedir(fs->super) &&
1843 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
1844 mark_inode_bad(ctx, ino);
1845 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1846 !ext2fs_has_feature_64bit(fs->super) &&
1847 inode->osd2.linux2.l_i_file_acl_high != 0)
1848 mark_inode_bad(ctx, ino);
1849 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1850 !ext2fs_has_feature_huge_file(fs->super) &&
1851 (inode->osd2.linux2.l_i_blocks_hi != 0))
1852 mark_inode_bad(ctx, ino);
1853 if (inode->i_flags & EXT2_IMAGIC_FL) {
1855 if (!ctx->inode_imagic_map)
1856 alloc_imagic_map(ctx);
1857 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1860 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1861 inode->i_flags &= ~EXT2_IMAGIC_FL;
1862 e2fsck_write_inode(ctx, ino,
1869 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
1870 check_is_really_dir(ctx, &pctx, block_buf);
1873 * ext2fs_inode_has_valid_blocks2 does not actually look
1874 * at i_block[] values, so not endian-sensitive here.
1876 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1877 LINUX_S_ISLNK(inode->i_mode) &&
1878 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1879 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1880 inode->i_flags &= ~EXT4_EXTENTS_FL;
1881 e2fsck_write_inode(ctx, ino, inode, "pass1");
1885 if ((inode->i_flags & EXT4_ENCRYPT_FL) &&
1886 add_encrypted_file(ctx, &pctx) < 0)
1889 if (casefold_fs && inode->i_flags & EXT4_CASEFOLD_FL)
1890 ext2fs_mark_inode_bitmap2(ctx->inode_casefold_map, ino);
1892 if (LINUX_S_ISDIR(inode->i_mode)) {
1893 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1894 e2fsck_add_dir_info(ctx, ino, 0);
1895 ctx->fs_directory_count++;
1896 if (inode->i_flags & EXT4_CASEFOLD_FL)
1897 add_casefolded_dir(ctx, ino);
1898 } else if (LINUX_S_ISREG (inode->i_mode)) {
1899 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1900 ctx->fs_regular_count++;
1901 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1902 e2fsck_pass1_check_device_inode(fs, inode)) {
1903 check_extents_inlinedata(ctx, &pctx);
1904 check_immutable(ctx, &pctx);
1905 check_size(ctx, &pctx);
1906 ctx->fs_chardev_count++;
1907 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1908 e2fsck_pass1_check_device_inode(fs, inode)) {
1909 check_extents_inlinedata(ctx, &pctx);
1910 check_immutable(ctx, &pctx);
1911 check_size(ctx, &pctx);
1912 ctx->fs_blockdev_count++;
1913 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1914 e2fsck_pass1_check_symlink(fs, ino, inode,
1916 check_immutable(ctx, &pctx);
1917 ctx->fs_symlinks_count++;
1918 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1919 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1921 } else if (ext2fs_is_fast_symlink(inode)) {
1922 ctx->fs_fast_symlinks_count++;
1923 check_blocks(ctx, &pctx, block_buf,
1925 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1929 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1930 e2fsck_pass1_check_device_inode(fs, inode)) {
1931 check_extents_inlinedata(ctx, &pctx);
1932 check_immutable(ctx, &pctx);
1933 check_size(ctx, &pctx);
1934 ctx->fs_fifo_count++;
1935 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1936 e2fsck_pass1_check_device_inode(fs, inode)) {
1937 check_extents_inlinedata(ctx, &pctx);
1938 check_immutable(ctx, &pctx);
1939 check_size(ctx, &pctx);
1940 ctx->fs_sockets_count++;
1942 mark_inode_bad(ctx, ino);
1943 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1944 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1945 if (inode->i_block[EXT2_IND_BLOCK])
1946 ctx->fs_ind_count++;
1947 if (inode->i_block[EXT2_DIND_BLOCK])
1948 ctx->fs_dind_count++;
1949 if (inode->i_block[EXT2_TIND_BLOCK])
1950 ctx->fs_tind_count++;
1952 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1953 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1954 (inode->i_block[EXT2_IND_BLOCK] ||
1955 inode->i_block[EXT2_DIND_BLOCK] ||
1956 inode->i_block[EXT2_TIND_BLOCK] ||
1957 ext2fs_file_acl_block(fs, inode))) {
1958 struct process_inode_block *itp;
1960 itp = &inodes_to_process[process_inode_count];
1962 itp->ea_ibody_quota = ea_ibody_quota;
1963 if (inode_size < sizeof(struct ext2_inode_large))
1964 memcpy(&itp->inode, inode, inode_size);
1966 memcpy(&itp->inode, inode, sizeof(itp->inode));
1967 process_inode_count++;
1969 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
1971 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1973 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1976 if (process_inode_count >= ctx->process_inode_size) {
1977 process_inodes(ctx, block_buf);
1979 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1983 process_inodes(ctx, block_buf);
1984 ext2fs_close_inode_scan(scan);
1987 reserve_block_for_root_repair(ctx);
1988 reserve_block_for_lnf_repair(ctx);
1991 * If any extended attribute blocks' reference counts need to
1992 * be adjusted, either up (ctx->refcount_extra), or down
1993 * (ctx->refcount), then fix them.
1995 if (ctx->refcount) {
1996 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1997 ea_refcount_free(ctx->refcount);
2000 if (ctx->refcount_extra) {
2001 adjust_extattr_refcount(ctx, ctx->refcount_extra,
2003 ea_refcount_free(ctx->refcount_extra);
2004 ctx->refcount_extra = 0;
2007 if (ctx->ea_block_quota_blocks) {
2008 ea_refcount_free(ctx->ea_block_quota_blocks);
2009 ctx->ea_block_quota_blocks = 0;
2012 if (ctx->ea_block_quota_inodes) {
2013 ea_refcount_free(ctx->ea_block_quota_inodes);
2014 ctx->ea_block_quota_inodes = 0;
2017 if (ctx->invalid_bitmaps)
2018 handle_fs_bad_blocks(ctx);
2020 /* We don't need the block_ea_map any more */
2021 if (ctx->block_ea_map) {
2022 ext2fs_free_block_bitmap(ctx->block_ea_map);
2023 ctx->block_ea_map = 0;
2026 /* We don't need the encryption policy => ID map any more */
2027 destroy_encryption_policy_map(ctx);
2029 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
2030 clear_problem_context(&pctx);
2031 pctx.errcode = ext2fs_create_resize_inode(fs);
2033 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
2035 ctx->flags |= E2F_FLAG_ABORT;
2040 if (!pctx.errcode) {
2041 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
2043 inode->i_mtime = ctx->now;
2044 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
2047 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
2050 if (ctx->flags & E2F_FLAG_RESTART) {
2052 * Only the master copy of the superblock and block
2053 * group descriptors are going to be written during a
2054 * restart, so set the superblock to be used to be the
2055 * master superblock.
2057 ctx->use_superblock = 0;
2061 if (ctx->block_dup_map) {
2062 if (ctx->options & E2F_OPT_PREEN) {
2063 clear_problem_context(&pctx);
2064 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2066 e2fsck_pass1_dupblocks(ctx, block_buf);
2068 ctx->flags |= E2F_FLAG_ALLOC_OK;
2070 e2fsck_use_inode_shortcuts(ctx, 0);
2071 ext2fs_free_mem(&inodes_to_process);
2072 inodes_to_process = 0;
2075 ext2fs_close_inode_scan(scan);
2077 ext2fs_free_mem(&block_buf);
2079 ext2fs_free_mem(&inode);
2082 * The l+f inode may have been cleared, so zap it now and
2083 * later passes will recalculate it if necessary
2085 ctx->lost_and_found = 0;
2087 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2088 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2090 ctx->invalid_bitmaps++;
2092 #undef FINISH_INODE_LOOP
2095 * When the inode_scan routines call this callback at the end of the
2096 * glock group, call process_inodes.
2098 static errcode_t scan_callback(ext2_filsys fs,
2099 ext2_inode_scan scan EXT2FS_ATTR((unused)),
2100 dgrp_t group, void * priv_data)
2102 struct scan_callback_struct *scan_struct;
2105 scan_struct = (struct scan_callback_struct *) priv_data;
2106 ctx = scan_struct->ctx;
2108 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
2111 if ((ctx->progress)(ctx, 1, group+1,
2112 ctx->fs->group_desc_count))
2113 return EXT2_ET_CANCEL_REQUESTED;
2119 * Process the inodes in the "inodes to process" list.
2121 static void process_inodes(e2fsck_t ctx, char *block_buf)
2124 struct ext2_inode *old_stashed_inode;
2125 ext2_ino_t old_stashed_ino;
2126 const char *old_operation;
2128 struct problem_context pctx;
2131 printf("begin process_inodes: ");
2133 if (process_inode_count == 0)
2135 old_operation = ehandler_operation(0);
2136 old_stashed_inode = ctx->stashed_inode;
2137 old_stashed_ino = ctx->stashed_ino;
2138 qsort(inodes_to_process, process_inode_count,
2139 sizeof(struct process_inode_block), process_inode_cmp);
2140 clear_problem_context(&pctx);
2141 for (i=0; i < process_inode_count; i++) {
2142 pctx.inode = ctx->stashed_inode =
2143 (struct ext2_inode *) &inodes_to_process[i].inode;
2144 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2147 printf("%u ", pctx.ino);
2149 sprintf(buf, _("reading indirect blocks of inode %u"),
2151 ehandler_operation(buf);
2152 check_blocks(ctx, &pctx, block_buf,
2153 &inodes_to_process[i].ea_ibody_quota);
2154 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2157 ctx->stashed_inode = old_stashed_inode;
2158 ctx->stashed_ino = old_stashed_ino;
2159 process_inode_count = 0;
2161 printf("end process inodes\n");
2163 ehandler_operation(old_operation);
2166 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2168 const struct process_inode_block *ib_a =
2169 (const struct process_inode_block *) a;
2170 const struct process_inode_block *ib_b =
2171 (const struct process_inode_block *) b;
2174 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2175 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2178 * We only call process_inodes() for non-extent
2179 * inodes, so it's OK to pass NULL to
2180 * ext2fs_file_acl_block() here.
2182 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2183 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2185 ret = ib_a->ino - ib_b->ino;
2190 * Mark an inode as being bad in some what
2192 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2194 struct problem_context pctx;
2196 if (!ctx->inode_bad_map) {
2197 clear_problem_context(&pctx);
2199 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2200 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
2201 "inode_bad_map", &ctx->inode_bad_map);
2204 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2205 /* Should never get here */
2206 ctx->flags |= E2F_FLAG_ABORT;
2210 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2213 static void add_casefolded_dir(e2fsck_t ctx, ino_t ino)
2215 struct problem_context pctx;
2217 if (!ctx->casefolded_dirs) {
2218 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
2222 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
2223 if (pctx.errcode == 0)
2226 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
2227 /* Should never get here */
2228 ctx->flags |= E2F_FLAG_ABORT;
2232 * This procedure will allocate the inode "bb" (badblock) map table
2234 static void alloc_bb_map(e2fsck_t ctx)
2236 struct problem_context pctx;
2238 clear_problem_context(&pctx);
2239 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2240 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2241 "inode_bb_map", &ctx->inode_bb_map);
2244 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2245 /* Should never get here */
2246 ctx->flags |= E2F_FLAG_ABORT;
2252 * This procedure will allocate the inode imagic table
2254 static void alloc_imagic_map(e2fsck_t ctx)
2256 struct problem_context pctx;
2258 clear_problem_context(&pctx);
2259 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2260 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
2261 "inode_imagic_map", &ctx->inode_imagic_map);
2264 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2265 /* Should never get here */
2266 ctx->flags |= E2F_FLAG_ABORT;
2272 * Marks a block as in use, setting the dup_map if it's been set
2273 * already. Called by process_block and process_bad_block.
2275 * WARNING: Assumes checks have already been done to make sure block
2276 * is valid. This is true in both process_block and process_bad_block.
2278 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
2280 struct problem_context pctx;
2282 clear_problem_context(&pctx);
2284 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
2285 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
2286 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
2289 if (!ctx->block_dup_map) {
2290 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
2291 _("multiply claimed block map"),
2292 EXT2FS_BMAP64_RBTREE, "block_dup_map",
2293 &ctx->block_dup_map);
2296 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
2298 /* Should never get here */
2299 ctx->flags |= E2F_FLAG_ABORT;
2303 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
2305 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
2310 * When cluster size is greater than one block, it is caller's responsibility
2311 * to make sure block parameter starts at a cluster boundary.
2313 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
2316 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
2317 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
2321 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
2322 mark_block_used(ctx, block + i);
2327 * Adjust the extended attribute block's reference counts at the end
2328 * of pass 1, either by subtracting out references for EA blocks that
2329 * are still referenced in ctx->refcount, or by adding references for
2330 * EA blocks that had extra references as accounted for in
2331 * ctx->refcount_extra.
2333 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
2334 char *block_buf, int adjust_sign)
2336 struct ext2_ext_attr_header *header;
2337 struct problem_context pctx;
2338 ext2_filsys fs = ctx->fs;
2343 clear_problem_context(&pctx);
2345 ea_refcount_intr_begin(refcount);
2347 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
2350 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
2353 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
2356 header = (struct ext2_ext_attr_header *) block_buf;
2357 pctx.blkcount = header->h_refcount;
2358 should_be = header->h_refcount + adjust_sign * (int)count;
2359 pctx.num = should_be;
2360 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
2361 header->h_refcount = should_be;
2362 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
2366 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
2375 * Handle processing the extended attribute blocks
2377 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
2378 char *block_buf, struct ea_quota *ea_block_quota)
2380 ext2_filsys fs = ctx->fs;
2381 ext2_ino_t ino = pctx->ino;
2382 struct ext2_inode *inode = pctx->inode;
2385 struct ext2_ext_attr_header *header;
2386 struct ext2_ext_attr_entry *first, *entry;
2387 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
2388 __u64 quota_inodes = 0;
2389 region_t region = 0;
2390 int failed_csum = 0;
2392 ea_block_quota->blocks = 0;
2393 ea_block_quota->inodes = 0;
2395 blk = ext2fs_file_acl_block(fs, inode);
2400 * If the Extended attribute flag isn't set, then a non-zero
2401 * file acl means that the inode is corrupted.
2403 * Or if the extended attribute block is an invalid block,
2404 * then the inode is also corrupted.
2406 if (!ext2fs_has_feature_xattr(fs->super) ||
2407 (blk < fs->super->s_first_data_block) ||
2408 (blk >= ext2fs_blocks_count(fs->super))) {
2409 mark_inode_bad(ctx, ino);
2413 /* If ea bitmap hasn't been allocated, create it */
2414 if (!ctx->block_ea_map) {
2415 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
2416 _("ext attr block map"),
2417 EXT2FS_BMAP64_RBTREE, "block_ea_map",
2418 &ctx->block_ea_map);
2419 if (pctx->errcode) {
2421 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
2422 ctx->flags |= E2F_FLAG_ABORT;
2427 /* Create the EA refcount structure if necessary */
2428 if (!ctx->refcount) {
2429 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
2430 if (pctx->errcode) {
2432 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2433 ctx->flags |= E2F_FLAG_ABORT;
2439 /* Debugging text */
2440 printf("Inode %u has EA block %u\n", ino, blk);
2443 /* Have we seen this EA block before? */
2444 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
2445 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
2446 ea_block_quota->inodes = 0;
2448 if (ctx->ea_block_quota_blocks) {
2449 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
2452 ea_block_quota->blocks = quota_blocks;
2455 if (ctx->ea_block_quota_inodes)
2456 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
2457 &ea_block_quota->inodes);
2459 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
2461 /* Ooops, this EA was referenced more than it stated */
2462 if (!ctx->refcount_extra) {
2463 pctx->errcode = ea_refcount_create(0,
2464 &ctx->refcount_extra);
2465 if (pctx->errcode) {
2467 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2468 ctx->flags |= E2F_FLAG_ABORT;
2472 ea_refcount_increment(ctx->refcount_extra, blk, 0);
2477 * OK, we haven't seen this EA block yet. So we need to
2481 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
2482 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
2485 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
2488 if (pctx->errcode &&
2489 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
2493 header = (struct ext2_ext_attr_header *) block_buf;
2494 pctx->blk = ext2fs_file_acl_block(fs, inode);
2495 if (((ctx->ext_attr_ver == 1) &&
2496 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
2497 ((ctx->ext_attr_ver == 2) &&
2498 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
2499 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
2503 if (header->h_blocks != 1) {
2504 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
2508 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
2511 region = region_create(0, fs->blocksize);
2513 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
2514 ctx->flags |= E2F_FLAG_ABORT;
2517 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
2518 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2522 first = (struct ext2_ext_attr_entry *)(header+1);
2523 end = block_buf + fs->blocksize;
2525 while ((char *)entry < end && *(__u32 *)entry) {
2528 if (region_allocate(region, (char *)entry - (char *)header,
2529 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
2530 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2534 if ((ctx->ext_attr_ver == 1 &&
2535 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
2536 (ctx->ext_attr_ver == 2 &&
2537 entry->e_name_index == 0)) {
2538 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
2542 if (entry->e_value_inum == 0) {
2543 if (entry->e_value_offs + entry->e_value_size >
2545 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2549 if (entry->e_value_size &&
2550 region_allocate(region, entry->e_value_offs,
2551 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
2552 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
2557 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
2558 entry->e_value_offs);
2560 if (entry->e_hash != hash) {
2561 pctx->num = entry->e_hash;
2562 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
2564 entry->e_hash = hash;
2568 blk64_t entry_quota_blocks;
2570 problem = check_large_ea_inode(ctx, entry, pctx,
2571 &entry_quota_blocks);
2572 if (problem && fix_problem(ctx, problem, pctx))
2575 quota_blocks += entry_quota_blocks;
2579 entry = EXT2_EXT_ATTR_NEXT(entry);
2581 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
2582 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2585 region_free(region);
2588 * We only get here if there was no other errors that were fixed.
2589 * If there was a checksum fail, ask to correct it.
2592 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
2593 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
2599 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
2600 if (!ctx->ea_block_quota_blocks) {
2601 pctx->errcode = ea_refcount_create(0,
2602 &ctx->ea_block_quota_blocks);
2603 if (pctx->errcode) {
2608 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
2613 if (!ctx->ea_block_quota_inodes) {
2614 pctx->errcode = ea_refcount_create(0,
2615 &ctx->ea_block_quota_inodes);
2616 if (pctx->errcode) {
2619 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2620 ctx->flags |= E2F_FLAG_ABORT;
2625 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
2628 ea_block_quota->blocks = quota_blocks;
2629 ea_block_quota->inodes = quota_inodes;
2631 inc_ea_inode_refs(ctx, pctx, first, end);
2632 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
2633 mark_block_used(ctx, blk);
2634 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
2639 region_free(region);
2640 ext2fs_file_acl_block_set(fs, inode, 0);
2641 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
2645 /* Returns 1 if bad htree, 0 if OK */
2646 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
2647 ext2_ino_t ino, struct ext2_inode *inode,
2650 struct ext2_dx_root_info *root;
2651 ext2_filsys fs = ctx->fs;
2655 if ((!LINUX_S_ISDIR(inode->i_mode) &&
2656 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
2657 (!ext2fs_has_feature_dir_index(fs->super) &&
2658 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
2661 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
2663 if ((pctx->errcode) ||
2665 (blk < fs->super->s_first_data_block) ||
2666 (blk >= ext2fs_blocks_count(fs->super))) {
2667 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2673 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
2674 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2677 /* XXX should check that beginning matches a directory */
2678 root = (struct ext2_dx_root_info *) (block_buf + 24);
2680 if ((root->reserved_zero || root->info_length < 8) &&
2681 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2684 pctx->num = root->hash_version;
2685 if ((root->hash_version != EXT2_HASH_LEGACY) &&
2686 (root->hash_version != EXT2_HASH_HALF_MD4) &&
2687 (root->hash_version != EXT2_HASH_TEA) &&
2688 (root->hash_version != EXT2_HASH_SIPHASH) &&
2689 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
2692 if (ext4_hash_in_dirent(inode)) {
2693 if (root->hash_version != EXT2_HASH_SIPHASH &&
2694 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
2697 if (root->hash_version == EXT2_HASH_SIPHASH &&
2698 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
2702 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
2703 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
2706 pctx->num = root->indirect_levels;
2707 if ((root->indirect_levels >= ext2_dir_htree_level(fs)) &&
2708 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
2714 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
2715 struct ext2_inode *inode, int restart_flag,
2719 inode->i_links_count = 0;
2720 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
2721 inode->i_dtime = ctx->now;
2724 * If a special inode has such rotten block mappings that we
2725 * want to clear the whole inode, be sure to actually zap
2726 * the block maps because i_links_count isn't checked for
2727 * special inodes, and we'll end up right back here the next
2730 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
2731 memset(inode->i_block, 0, sizeof(inode->i_block));
2733 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
2734 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
2735 if (ctx->inode_reg_map)
2736 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
2737 if (ctx->inode_bad_map)
2738 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
2741 * If the inode was partially accounted for before processing
2742 * was aborted, we need to restart the pass 1 scan.
2744 ctx->flags |= restart_flag;
2746 if (ino == EXT2_BAD_INO)
2747 memset(inode, 0, sizeof(struct ext2_inode));
2749 e2fsck_write_inode(ctx, ino, inode, source);
2753 * Use the multiple-blocks reclamation code to fix alignment problems in
2754 * a bigalloc filesystem. We want a logical cluster to map to *only* one
2755 * physical cluster, and we want the block offsets within that cluster to
2758 static int has_unaligned_cluster_map(e2fsck_t ctx,
2759 blk64_t last_pblk, blk64_t last_lblk,
2760 blk64_t pblk, blk64_t lblk)
2762 blk64_t cluster_mask;
2764 if (!ctx->fs->cluster_ratio_bits)
2766 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
2769 * If the block in the logical cluster doesn't align with the block in
2770 * the physical cluster...
2772 if ((lblk & cluster_mask) != (pblk & cluster_mask))
2776 * If we cross a physical cluster boundary within a logical cluster...
2778 if (last_pblk && (lblk & cluster_mask) != 0 &&
2779 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
2780 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
2786 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
2787 struct process_block_struct *pb,
2788 blk64_t start_block, blk64_t end_block,
2790 ext2_extent_handle_t ehandle,
2793 struct ext2fs_extent extent;
2794 blk64_t blk, last_lblk;
2796 int is_dir, is_leaf;
2798 struct ext2_extent_info info;
2799 int failed_csum = 0;
2801 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
2804 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
2807 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
2808 !pb->eti.force_rebuild) {
2809 struct extent_tree_level *etl;
2811 etl = pb->eti.ext_info + info.curr_level;
2812 etl->num_extents += info.num_entries;
2813 etl->max_extents += info.max_entries;
2815 * Implementation wart: Splitting extent blocks when appending
2816 * will leave the old block with one free entry. Therefore
2817 * unless the node is totally full, pretend that a non-root
2818 * extent block can hold one fewer entry than it actually does,
2819 * so that we don't repeatedly rebuild the extent tree.
2821 if (info.curr_level && info.num_entries < info.max_entries)
2825 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
2827 while ((pctx->errcode == 0 ||
2828 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
2829 info.num_entries-- > 0) {
2830 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
2831 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
2832 last_lblk = extent.e_lblk + extent.e_len - 1;
2835 pctx->blk = extent.e_pblk;
2836 pctx->blk2 = extent.e_lblk;
2837 pctx->num = extent.e_len;
2838 pctx->blkcount = extent.e_lblk + extent.e_len;
2840 if (extent.e_pblk == 0 ||
2841 extent.e_pblk < ctx->fs->super->s_first_data_block ||
2842 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
2843 problem = PR_1_EXTENT_BAD_START_BLK;
2844 else if (extent.e_lblk < start_block)
2845 problem = PR_1_OUT_OF_ORDER_EXTENTS;
2846 else if ((end_block && last_lblk > end_block) &&
2847 !(last_lblk > eof_block &&
2848 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
2849 (pctx->inode->i_flags & EXT4_VERITY_FL))))
2850 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
2851 else if (is_leaf && extent.e_len == 0)
2852 problem = PR_1_EXTENT_LENGTH_ZERO;
2854 (extent.e_pblk + extent.e_len) >
2855 ext2fs_blocks_count(ctx->fs->super))
2856 problem = PR_1_EXTENT_ENDS_BEYOND;
2857 else if (is_leaf && is_dir &&
2858 ((extent.e_lblk + extent.e_len) >
2859 (1U << (21 - ctx->fs->super->s_log_block_size))))
2860 problem = PR_1_TOOBIG_DIR;
2862 if (is_leaf && problem == 0 && extent.e_len > 0) {
2864 printf("extent_region(ino=%u, expect=%llu, "
2865 "lblk=%llu, len=%u)\n",
2866 pb->ino, pb->next_lblock,
2867 extent.e_lblk, extent.e_len);
2869 if (extent.e_lblk < pb->next_lblock)
2870 problem = PR_1_EXTENT_COLLISION;
2871 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
2872 pb->next_lblock = extent.e_lblk + extent.e_len;
2876 * Uninitialized blocks in a directory? Clear the flag and
2877 * we'll interpret the blocks later.
2879 if (try_repairs && is_dir && problem == 0 &&
2880 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
2881 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
2882 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
2883 pb->inode_modified = 1;
2884 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
2890 #ifdef CONFIG_DEVELOPER_FEATURES
2891 if (try_repairs && !is_dir && problem == 0 &&
2892 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
2893 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
2894 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
2895 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
2896 pb->inode_modified = 1;
2897 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
2904 if (try_repairs && problem) {
2906 if (fix_problem(ctx, problem, pctx)) {
2907 if (ctx->invalid_bitmaps) {
2909 * If fsck knows the bitmaps are bad,
2910 * skip to the next extent and
2911 * try to clear this extent again
2912 * after fixing the bitmaps, by
2915 pctx->errcode = ext2fs_extent_get(
2917 EXT2_EXTENT_NEXT_SIB,
2919 ctx->flags |= E2F_FLAG_RESTART_LATER;
2920 if (pctx->errcode ==
2921 EXT2_ET_NO_CURRENT_NODE) {
2927 e2fsck_read_bitmaps(ctx);
2928 pb->inode_modified = 1;
2930 ext2fs_extent_delete(ehandle, 0);
2931 if (pctx->errcode) {
2932 pctx->str = "ext2fs_extent_delete";
2935 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2936 if (pctx->errcode &&
2937 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
2938 pctx->str = "ext2fs_extent_fix_parents";
2941 pctx->errcode = ext2fs_extent_get(ehandle,
2942 EXT2_EXTENT_CURRENT,
2944 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
2955 blk64_t lblk = extent.e_lblk;
2956 int next_try_repairs = 1;
2958 blk = extent.e_pblk;
2961 * If this lower extent block collides with critical
2962 * metadata, don't try to repair the damage. Pass 1b
2963 * will reallocate the block; then we can try again.
2965 if (pb->ino != EXT2_RESIZE_INO &&
2966 extent.e_pblk < ctx->fs->super->s_blocks_count &&
2967 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
2969 next_try_repairs = 0;
2972 PR_1_CRITICAL_METADATA_COLLISION,
2974 if ((ctx->options & E2F_OPT_NO) == 0)
2975 ctx->flags |= E2F_FLAG_RESTART_LATER;
2977 pctx->errcode = ext2fs_extent_get(ehandle,
2978 EXT2_EXTENT_DOWN, &extent);
2979 if (pctx->errcode &&
2980 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
2981 pctx->str = "EXT2_EXTENT_DOWN";
2982 problem = PR_1_EXTENT_HEADER_INVALID;
2983 if (!next_try_repairs)
2985 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
2986 goto report_problem;
2989 /* The next extent should match this index's logical start */
2990 if (extent.e_lblk != lblk) {
2991 struct ext2_extent_info e_info;
2993 ext2fs_extent_get_info(ehandle, &e_info);
2995 pctx->blk2 = extent.e_lblk;
2996 pctx->num = e_info.curr_level - 1;
2997 problem = PR_1_EXTENT_INDEX_START_INVALID;
2998 if (fix_problem(ctx, problem, pctx)) {
2999 pb->inode_modified = 1;
3001 ext2fs_extent_fix_parents(ehandle);
3002 if (pctx->errcode) {
3003 pctx->str = "ext2fs_extent_fix_parents";
3008 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
3009 last_lblk, eof_block, ehandle,
3013 pctx->errcode = ext2fs_extent_get(ehandle,
3014 EXT2_EXTENT_UP, &extent);
3015 if (pctx->errcode) {
3016 pctx->str = "EXT2_EXTENT_UP";
3019 mark_block_used(ctx, blk);
3024 if ((pb->previous_block != 0) &&
3025 (pb->previous_block+1 != extent.e_pblk)) {
3026 if (ctx->options & E2F_OPT_FRAGCHECK) {
3031 else if (pb->is_reg)
3034 printf(("%6lu(%c): expecting %6lu "
3036 "phys %6lu log %lu len %lu\n"),
3037 (unsigned long) pctx->ino, type,
3038 (unsigned long) pb->previous_block+1,
3039 (unsigned long) extent.e_pblk,
3040 (unsigned long) extent.e_lblk,
3041 (unsigned long) extent.e_len);
3046 * If we notice a gap in the logical block mappings of an
3047 * extent-mapped directory, offer to close the hole by
3048 * moving the logical block down, otherwise we'll go mad in
3049 * pass 3 allocating empty directory blocks to fill the hole.
3051 if (try_repairs && is_dir &&
3052 pb->last_block + 1 < extent.e_lblk) {
3055 new_lblk = pb->last_block + 1;
3056 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
3057 new_lblk = ((new_lblk +
3058 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
3059 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
3061 EXT2FS_CLUSTER_MASK(ctx->fs));
3062 pctx->blk = extent.e_lblk;
3063 pctx->blk2 = new_lblk;
3064 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
3065 extent.e_lblk = new_lblk;
3066 pb->inode_modified = 1;
3067 pctx->errcode = ext2fs_extent_replace(ehandle,
3069 if (pctx->errcode) {
3073 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3075 goto failed_add_dir_block;
3076 pctx->errcode = ext2fs_extent_goto(ehandle,
3079 goto failed_add_dir_block;
3080 last_lblk = extent.e_lblk + extent.e_len - 1;
3086 while (++pb->last_db_block <
3087 (e2_blkcnt_t) extent.e_lblk) {
3088 pctx->errcode = ext2fs_add_dir_block2(
3092 if (pctx->errcode) {
3094 pctx->num = pb->last_db_block;
3095 goto failed_add_dir_block;
3099 for (i = 0; i < extent.e_len; i++) {
3100 pctx->errcode = ext2fs_add_dir_block2(
3105 if (pctx->errcode) {
3106 pctx->blk = extent.e_pblk + i;
3107 pctx->num = extent.e_lblk + i;
3108 failed_add_dir_block:
3109 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3110 /* Should never get here */
3111 ctx->flags |= E2F_FLAG_ABORT;
3115 if (extent.e_len > 0)
3116 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
3118 if (has_unaligned_cluster_map(ctx, pb->previous_block,
3122 for (i = 0; i < extent.e_len; i++) {
3123 pctx->blk = extent.e_lblk + i;
3124 pctx->blk2 = extent.e_pblk + i;
3125 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3126 mark_block_used(ctx, extent.e_pblk + i);
3127 mark_block_used(ctx, extent.e_pblk + i);
3132 * Check whether first cluster got marked in previous iteration.
3134 if (ctx->fs->cluster_ratio_bits &&
3135 pb->previous_block &&
3136 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
3137 EXT2FS_B2C(ctx->fs, pb->previous_block)))
3138 /* Set blk to the beginning of next cluster. */
3141 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
3143 /* Set blk to the beginning of current cluster. */
3144 blk = EXT2FS_C2B(ctx->fs,
3145 EXT2FS_B2C(ctx->fs, extent.e_pblk));
3147 if (blk < extent.e_pblk + extent.e_len) {
3148 mark_blocks_used(ctx, blk,
3149 extent.e_pblk + extent.e_len - blk);
3150 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
3151 EXT2FS_CLUSTER_RATIO(ctx->fs));
3152 pb->num_blocks += n;
3154 pb->last_block = extent.e_lblk + extent.e_len - 1;
3155 pb->previous_block = extent.e_pblk + extent.e_len - 1;
3156 start_block = pb->last_block = last_lblk;
3157 if (is_leaf && !is_dir &&
3158 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
3159 pb->last_init_lblock = last_lblk;
3161 pctx->errcode = ext2fs_extent_get(ehandle,
3162 EXT2_EXTENT_NEXT_SIB,
3166 /* Failed csum but passes checks? Ask to fix checksum. */
3168 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
3169 pb->inode_modified = 1;
3170 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
3175 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
3179 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
3180 struct process_block_struct *pb)
3182 struct ext2_extent_info info;
3183 struct ext2_inode *inode = pctx->inode;
3184 ext2_extent_handle_t ehandle;
3185 ext2_filsys fs = ctx->fs;
3186 ext2_ino_t ino = pctx->ino;
3189 struct ext3_extent_header *eh;
3191 /* Check for a proper extent header... */
3192 eh = (struct ext3_extent_header *) &inode->i_block[0];
3193 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
3195 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
3196 e2fsck_clear_inode(ctx, ino, inode, 0,
3197 "check_blocks_extents");
3202 /* ...since this function doesn't fail if i_block is zeroed. */
3203 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
3204 if (pctx->errcode) {
3205 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
3206 e2fsck_clear_inode(ctx, ino, inode, 0,
3207 "check_blocks_extents");
3212 retval = ext2fs_extent_get_info(ehandle, &info);
3214 int max_depth = info.max_depth;
3216 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
3217 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
3218 ctx->extent_depth_count[max_depth]++;
3221 /* Check maximum extent depth */
3222 pctx->blk = info.max_depth;
3223 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
3224 if (pctx->blk2 < pctx->blk &&
3225 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
3226 pb->eti.force_rebuild = 1;
3228 /* Can we collect extent tree level stats? */
3229 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
3230 if (pctx->blk2 > pctx->blk)
3231 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
3232 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
3233 pb->eti.ino = pb->ino;
3235 pb->next_lblock = 0;
3237 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
3238 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
3239 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
3240 if (pctx->errcode &&
3241 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
3243 inode->i_blocks = 0;
3244 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3245 "check_blocks_extents");
3248 ext2fs_extent_free(ehandle);
3250 /* Rebuild unless it's a dir and we're rehashing it */
3251 if (LINUX_S_ISDIR(inode->i_mode) &&
3252 e2fsck_dir_will_be_rehashed(ctx, ino))
3255 if (ctx->options & E2F_OPT_CONVERT_BMAP)
3256 e2fsck_rebuild_extents_later(ctx, ino);
3258 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
3262 * In fact we don't need to check blocks for an inode with inline data
3263 * because this inode doesn't have any blocks. In this function all
3264 * we need to do is add this inode into dblist when it is a directory.
3266 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
3267 struct process_block_struct *pb)
3270 size_t inline_data_size = 0;
3277 /* Process the dirents in i_block[] as the "first" block. */
3278 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
3282 /* Process the dirents in the EA as a "second" block. */
3283 flags = ctx->fs->flags;
3284 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3285 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
3287 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3288 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3289 if (pctx->errcode) {
3294 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
3297 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
3305 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3306 ctx->flags |= E2F_FLAG_ABORT;
3310 * This subroutine is called on each inode to account for all of the
3311 * blocks used by that inode.
3313 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
3314 char *block_buf, const struct ea_quota *ea_ibody_quota)
3316 ext2_filsys fs = ctx->fs;
3317 struct process_block_struct pb;
3318 ext2_ino_t ino = pctx->ino;
3319 struct ext2_inode *inode = pctx->inode;
3320 unsigned bad_size = 0;
3321 int dirty_inode = 0;
3325 struct ea_quota ea_block_quota;
3328 pb.num_blocks = EXT2FS_B2C(ctx->fs,
3329 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
3331 pb.last_init_lblock = -1;
3332 pb.last_db_block = -1;
3333 pb.num_illegal_blocks = 0;
3334 pb.suppress = 0; pb.clear = 0;
3337 pb.previous_block = 0;
3338 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
3339 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
3340 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
3344 pb.inode_modified = 0;
3345 pb.eti.force_rebuild = 0;
3349 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
3350 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
3352 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
3353 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3355 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
3358 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
3359 check_blocks_inline_data(ctx, pctx, &pb);
3360 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
3361 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
3362 check_blocks_extents(ctx, pctx, &pb);
3366 * If we've modified the inode, write it out before
3367 * iterate() tries to use it.
3370 e2fsck_write_inode(ctx, ino, inode,
3375 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3376 pctx->errcode = ext2fs_block_iterate3(fs, ino,
3377 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
3378 block_buf, process_block, &pb);
3380 * We do not have uninitialized extents in non extent
3383 pb.last_init_lblock = pb.last_block;
3385 * If iterate() changed a block mapping, we have to
3386 * re-read the inode. If we decide to clear the
3387 * inode after clearing some stuff, we'll re-write the
3388 * bad mappings into the inode!
3390 if (pb.inode_modified)
3391 e2fsck_read_inode(ctx, ino, inode,
3393 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3394 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3396 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
3398 printf("bmap rebuild ino=%d\n", ino);
3400 if (!LINUX_S_ISDIR(inode->i_mode) ||
3401 !e2fsck_dir_will_be_rehashed(ctx, ino))
3402 e2fsck_rebuild_extents_later(ctx, ino);
3406 end_problem_latch(ctx, PR_LATCH_BLOCK);
3407 end_problem_latch(ctx, PR_LATCH_TOOBIG);
3408 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3411 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
3413 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
3414 if (LINUX_S_ISDIR(inode->i_mode))
3415 ctx->fs_fragmented_dir++;
3417 ctx->fs_fragmented++;
3421 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3426 if (inode->i_flags & EXT2_INDEX_FL) {
3427 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
3428 inode->i_flags &= ~EXT2_INDEX_FL;
3431 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
3435 if (!pb.num_blocks && pb.is_dir &&
3436 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
3437 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
3438 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
3439 ctx->fs_directory_count--;
3444 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
3445 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
3446 !(inode->i_flags & EXT4_EA_INODE_FL)) {
3447 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
3449 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
3450 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
3451 ino, (ea_ibody_quota ?
3452 ea_ibody_quota->inodes : 0) +
3453 ea_block_quota.inodes + 1);
3456 if (!ext2fs_has_feature_huge_file(fs->super) ||
3457 !(inode->i_flags & EXT4_HUGE_FILE_FL))
3458 pb.num_blocks *= (fs->blocksize / 512);
3459 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
3461 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
3462 ino, inode->i_size, pb.last_block, ext2fs_inode_i_blocks(fs, inode),
3466 unsigned nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
3467 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
3472 flags = ctx->fs->flags;
3473 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3474 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
3476 ctx->fs->flags = (flags &
3477 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3479 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3480 if (err || sz != inode->i_size) {
3484 } else if (inode->i_size & (fs->blocksize - 1))
3486 else if (nblock > (pb.last_block + 1))
3488 else if (nblock < (pb.last_block + 1)) {
3489 if (((pb.last_block + 1) - nblock) >
3490 fs->super->s_prealloc_dir_blocks)
3494 size = EXT2_I_SIZE(inode);
3495 if ((pb.last_init_lblock >= 0) &&
3496 /* Do not allow initialized allocated blocks past i_size*/
3497 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
3498 !(inode->i_flags & EXT4_VERITY_FL))
3500 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3501 size > ext2_max_sizes[fs->super->s_log_block_size])
3502 /* too big for a direct/indirect-mapped file */
3504 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3506 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
3507 /* too big for an extent-based file - 32bit ee_block */
3510 /* i_size for symlinks is checked elsewhere */
3511 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
3512 /* Did inline_data set pctx->num earlier? */
3514 pctx->num = (pb.last_block + 1) * fs->blocksize;
3515 pctx->group = bad_size;
3516 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
3517 if (LINUX_S_ISDIR(inode->i_mode))
3518 pctx->num &= 0xFFFFFFFFULL;
3519 ext2fs_inode_size_set(fs, inode, pctx->num);
3520 if (EXT2_I_SIZE(inode) == 0 &&
3521 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
3522 memset(inode->i_block, 0,
3523 sizeof(inode->i_block));
3524 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
3530 if (LINUX_S_ISREG(inode->i_mode) &&
3531 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3533 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
3534 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
3535 (ext2fs_has_feature_huge_file(fs->super) &&
3536 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
3537 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
3538 pctx->num = pb.num_blocks;
3539 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
3540 inode->i_blocks = pb.num_blocks;
3541 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
3548 * The kernel gets mad if we ask it to allocate bigalloc clusters to
3549 * a block mapped file, so rebuild it as an extent file. We can skip
3550 * symlinks because they're never rewritten.
3552 if (ext2fs_has_feature_bigalloc(fs->super) &&
3553 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
3554 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
3555 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
3556 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
3557 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
3558 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
3563 if (ctx->dirs_to_hash && pb.is_dir &&
3564 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
3565 !(inode->i_flags & EXT2_INDEX_FL) &&
3566 ((inode->i_size / fs->blocksize) >= 3))
3567 e2fsck_rehash_dir_later(ctx, ino);
3571 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
3576 * Helper function called by process block when an illegal block is
3577 * found. It returns a description about why the block is illegal
3579 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
3583 static char problem[80];
3585 super = fs->super->s_first_data_block;
3586 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
3587 if (block < super) {
3588 sprintf(problem, "< FIRSTBLOCK (%u)", super);
3590 } else if (block >= ext2fs_blocks_count(fs->super)) {
3591 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
3594 for (i = 0; i < fs->group_desc_count; i++) {
3595 if (block == super) {
3596 sprintf(problem, "is the superblock in group %d", i);
3599 if (block > super &&
3600 block <= (super + fs->desc_blocks)) {
3601 sprintf(problem, "is in the group descriptors "
3605 if (block == ext2fs_block_bitmap_loc(fs, i)) {
3606 sprintf(problem, "is the block bitmap of group %d", i);
3609 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
3610 sprintf(problem, "is the inode bitmap of group %d", i);
3613 if (block >= ext2fs_inode_table_loc(fs, i) &&
3614 (block < ext2fs_inode_table_loc(fs, i)
3615 + fs->inode_blocks_per_group)) {
3616 sprintf(problem, "is in the inode table of group %d",
3620 super += fs->super->s_blocks_per_group;
3627 * This is a helper function for check_blocks().
3629 static int process_block(ext2_filsys fs,
3631 e2_blkcnt_t blockcnt,
3632 blk64_t ref_block EXT2FS_ATTR((unused)),
3633 int ref_offset EXT2FS_ATTR((unused)),
3636 struct process_block_struct *p;
3637 struct problem_context *pctx;
3638 blk64_t blk = *block_nr;
3640 problem_t problem = 0;
3643 p = (struct process_block_struct *) priv_data;
3648 * For a directory, add logical block zero for processing even if it's
3649 * not mapped or we'll be perennially stuck with broken "." and ".."
3652 if (p->is_dir && blockcnt == 0 && blk == 0) {
3653 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
3654 if (pctx->errcode) {
3656 pctx->num = blockcnt;
3657 goto failed_add_dir_block;
3666 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
3671 * Simplistic fragmentation check. We merely require that the
3672 * file be contiguous. (Which can never be true for really
3673 * big files that are greater than a block group.)
3675 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
3676 if (p->previous_block+1 != blk) {
3677 if (ctx->options & E2F_OPT_FRAGCHECK) {
3685 printf(_("%6lu(%c): expecting %6lu "
3686 "got phys %6lu (blkcnt %lld)\n"),
3687 (unsigned long) pctx->ino, type,
3688 (unsigned long) p->previous_block+1,
3689 (unsigned long) blk,
3696 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
3697 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
3698 problem = PR_1_TOOBIG_DIR;
3699 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
3700 problem = PR_1_TOOBIG_DIR;
3701 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
3702 problem = PR_1_TOOBIG_REG;
3703 if (!p->is_dir && !p->is_reg && blockcnt > 0)
3704 problem = PR_1_TOOBIG_SYMLINK;
3706 if (blk < fs->super->s_first_data_block ||
3707 blk >= ext2fs_blocks_count(fs->super))
3708 problem = PR_1_ILLEGAL_BLOCK_NUM;
3711 * If this IND/DIND/TIND block is squatting atop some critical metadata
3712 * (group descriptors, superblock, bitmap, inode table), any write to
3713 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
3714 * fix that and restart fsck.
3717 p->ino != EXT2_RESIZE_INO &&
3718 blk < ctx->fs->super->s_blocks_count &&
3719 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
3721 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
3722 if ((ctx->options & E2F_OPT_NO) == 0)
3723 ctx->flags |= E2F_FLAG_RESTART_LATER;
3727 p->num_illegal_blocks++;
3729 * A bit of subterfuge here -- we're trying to fix a block
3730 * mapping, but the IND/DIND/TIND block could have collided
3731 * with some critical metadata. So, fix the in-core mapping so
3732 * iterate won't go insane, but return 0 instead of
3733 * BLOCK_CHANGED so that it won't write the remapping out to
3734 * our multiply linked block.
3736 * Even if we previously determined that an *IND block
3737 * conflicts with critical metadata, we must still try to
3738 * iterate the *IND block as if it is an *IND block to find and
3739 * mark the blocks it points to. Better to be overly cautious
3740 * with the used_blocks map so that we don't move the *IND
3741 * block to a block that's really in use!
3743 if (p->ino != EXT2_RESIZE_INO &&
3745 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3750 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
3751 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
3755 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
3757 set_latch_flags(PR_LATCH_BLOCK,
3762 pctx->blkcount = blockcnt;
3763 if (fix_problem(ctx, problem, pctx)) {
3764 blk = *block_nr = 0;
3765 ret_code = BLOCK_CHANGED;
3766 p->inode_modified = 1;
3768 * If the directory block is too big and is beyond the
3769 * end of the FS, don't bother trying to add it for
3770 * processing -- the kernel would never have created a
3771 * directory this large, and we risk an ENOMEM abort.
3772 * In any case, the toobig handler for extent-based
3773 * directories also doesn't feed toobig blocks to
3776 if (problem == PR_1_TOOBIG_DIR)
3783 if (p->ino == EXT2_RESIZE_INO) {
3785 * The resize inode has already be sanity checked
3786 * during pass #0 (the superblock checks). All we
3787 * have to do is mark the double indirect block as
3788 * being in use; all of the other blocks are handled
3789 * by mark_table_blocks()).
3791 if (blockcnt == BLOCK_COUNT_DIND)
3792 mark_block_used(ctx, blk);
3794 } else if (!(ctx->fs->cluster_ratio_bits &&
3795 p->previous_block &&
3796 (EXT2FS_B2C(ctx->fs, blk) ==
3797 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
3798 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
3799 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
3800 mark_block_used(ctx, blk);
3802 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
3803 p->last_block, blk, blockcnt)) {
3804 pctx->blk = blockcnt;
3806 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3807 mark_block_used(ctx, blk);
3808 mark_block_used(ctx, blk);
3811 p->last_block = blockcnt;
3812 p->previous_block = blk;
3814 if (p->is_dir && (blockcnt >= 0)) {
3815 while (++p->last_db_block < blockcnt) {
3816 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
3819 if (pctx->errcode) {
3821 pctx->num = p->last_db_block;
3822 goto failed_add_dir_block;
3825 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
3827 if (pctx->errcode) {
3829 pctx->num = blockcnt;
3830 failed_add_dir_block:
3831 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3832 /* Should never get here */
3833 ctx->flags |= E2F_FLAG_ABORT;
3840 static int process_bad_block(ext2_filsys fs,
3842 e2_blkcnt_t blockcnt,
3843 blk64_t ref_block EXT2FS_ATTR((unused)),
3844 int ref_offset EXT2FS_ATTR((unused)),
3847 struct process_block_struct *p;
3848 blk64_t blk = *block_nr;
3849 blk64_t first_block;
3851 struct problem_context *pctx;
3857 p = (struct process_block_struct *) priv_data;
3861 pctx->ino = EXT2_BAD_INO;
3863 pctx->blkcount = blockcnt;
3865 if ((blk < fs->super->s_first_data_block) ||
3866 (blk >= ext2fs_blocks_count(fs->super))) {
3867 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
3869 return BLOCK_CHANGED;
3875 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
3877 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
3879 return BLOCK_CHANGED;
3881 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3884 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
3887 return BLOCK_CHANGED;
3889 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3892 mark_block_used(ctx, blk);
3896 printf ("DEBUG: Marking %u as bad.\n", blk);
3898 ctx->fs_badblocks_count++;
3900 * If the block is not used, then mark it as used and return.
3901 * If it is already marked as found, this must mean that
3902 * there's an overlap between the filesystem table blocks
3903 * (bitmaps and inode table) and the bad block list.
3905 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
3906 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
3910 * Try to find the where the filesystem block was used...
3912 first_block = fs->super->s_first_data_block;
3914 for (i = 0; i < fs->group_desc_count; i++ ) {
3917 if (!ext2fs_bg_has_super(fs, i))
3919 if (blk == first_block) {
3921 if (fix_problem(ctx,
3922 PR_1_BAD_PRIMARY_SUPERBLOCK,
3925 return BLOCK_CHANGED;
3929 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
3932 if ((blk > first_block) &&
3933 (blk <= first_block + fs->desc_blocks)) {
3935 pctx->blk = *block_nr;
3936 if (fix_problem(ctx,
3937 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
3939 return BLOCK_CHANGED;
3943 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
3947 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
3948 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
3949 ctx->invalid_block_bitmap_flag[i]++;
3950 ctx->invalid_bitmaps++;
3954 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
3955 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
3956 ctx->invalid_inode_bitmap_flag[i]++;
3957 ctx->invalid_bitmaps++;
3961 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
3962 (blk < (ext2fs_inode_table_loc(fs, i) +
3963 fs->inode_blocks_per_group))) {
3965 * If there are bad blocks in the inode table,
3966 * the inode scan code will try to do
3967 * something reasonable automatically.
3971 first_block += fs->super->s_blocks_per_group;
3974 * If we've gotten to this point, then the only
3975 * possibility is that the bad block inode meta data
3976 * is using a bad block.
3978 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
3979 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
3980 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
3982 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
3984 return BLOCK_CHANGED;
3986 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3993 /* Warn user that the block wasn't claimed */
3994 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
3999 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
4000 const char *name, int num, blk64_t *new_block)
4002 ext2_filsys fs = ctx->fs;
4004 blk64_t old_block = *new_block;
4007 unsigned flexbg_size;
4010 struct problem_context pctx;
4012 clear_problem_context(&pctx);
4015 pctx.blk = old_block;
4019 * For flex_bg filesystems, first try to allocate the metadata
4020 * within the flex_bg, and if that fails then try finding the
4021 * space anywhere in the filesystem.
4023 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
4025 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
4026 flexbg = group / flexbg_size;
4027 first_block = ext2fs_group_first_block2(fs,
4028 flexbg_size * flexbg);
4029 last_grp = group | (flexbg_size - 1);
4030 if (last_grp >= fs->group_desc_count)
4031 last_grp = fs->group_desc_count - 1;
4032 last_block = ext2fs_group_last_block2(fs, last_grp);
4034 last_block = ext2fs_group_last_block2(fs, group);
4035 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
4036 num, ctx->block_found_map,
4038 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
4039 pctx.errcode = ext2fs_get_free_blocks2(fs,
4040 fs->super->s_first_data_block,
4041 ext2fs_blocks_count(fs->super),
4042 num, ctx->block_found_map, new_block);
4045 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
4046 ext2fs_unmark_valid(fs);
4047 ctx->flags |= E2F_FLAG_ABORT;
4050 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
4052 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
4053 ext2fs_unmark_valid(fs);
4054 ctx->flags |= E2F_FLAG_ABORT;
4057 ext2fs_mark_super_dirty(fs);
4058 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
4059 pctx.blk2 = *new_block;
4060 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
4061 PR_1_RELOC_TO), &pctx);
4063 for (i = 0; i < num; i++) {
4065 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
4067 pctx.errcode = io_channel_read_blk64(fs->io,
4068 old_block + i, 1, buf);
4070 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
4071 pctx.blk = (*new_block) + i;
4072 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
4075 pctx.blk = (*new_block) + i;
4076 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
4081 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
4083 ext2fs_free_mem(&buf);
4087 * This routine gets called at the end of pass 1 if bad blocks are
4088 * detected in the superblock, group descriptors, inode_bitmaps, or
4089 * block bitmaps. At this point, all of the blocks have been mapped
4090 * out, so we can try to allocate new block(s) to replace the bad
4093 static void handle_fs_bad_blocks(e2fsck_t ctx)
4095 ext2_filsys fs = ctx->fs;
4097 blk64_t first_block;
4100 for (i = 0; i < fs->group_desc_count; i++) {
4101 first_block = ext2fs_group_first_block2(fs, i);
4103 if (ctx->invalid_block_bitmap_flag[i]) {
4104 new_blk = ext2fs_block_bitmap_loc(fs, i);
4105 new_table_block(ctx, first_block, i, _("block bitmap"),
4107 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
4109 if (ctx->invalid_inode_bitmap_flag[i]) {
4110 new_blk = ext2fs_inode_bitmap_loc(fs, i);
4111 new_table_block(ctx, first_block, i, _("inode bitmap"),
4113 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
4115 if (ctx->invalid_inode_table_flag[i]) {
4116 new_blk = ext2fs_inode_table_loc(fs, i);
4117 new_table_block(ctx, first_block, i, _("inode table"),
4118 fs->inode_blocks_per_group,
4120 ext2fs_inode_table_loc_set(fs, i, new_blk);
4121 ctx->flags |= E2F_FLAG_RESTART;
4124 ctx->invalid_bitmaps = 0;
4128 * This routine marks all blocks which are used by the superblock,
4129 * group descriptors, inode bitmaps, and block bitmaps.
4131 static void mark_table_blocks(e2fsck_t ctx)
4133 ext2_filsys fs = ctx->fs;
4137 struct problem_context pctx;
4139 clear_problem_context(&pctx);
4141 for (i = 0; i < fs->group_desc_count; i++) {
4144 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
4145 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
4148 * Mark the blocks used for the inode table
4150 if (ext2fs_inode_table_loc(fs, i)) {
4151 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
4152 j < fs->inode_blocks_per_group;
4154 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4157 if (!ctx->invalid_inode_table_flag[i] &&
4159 PR_1_ITABLE_CONFLICT, &pctx)) {
4160 ctx->invalid_inode_table_flag[i]++;
4161 ctx->invalid_bitmaps++;
4164 ext2fs_mark_block_bitmap2(
4165 ctx->block_found_map, b);
4166 ext2fs_mark_block_bitmap2(
4167 ctx->block_metadata_map, b);
4173 * Mark block used for the block bitmap
4175 if (ext2fs_block_bitmap_loc(fs, i)) {
4176 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4177 ext2fs_block_bitmap_loc(fs, i))) {
4178 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
4179 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
4180 ctx->invalid_block_bitmap_flag[i]++;
4181 ctx->invalid_bitmaps++;
4184 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4185 ext2fs_block_bitmap_loc(fs, i));
4186 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4187 ext2fs_block_bitmap_loc(fs, i));
4191 * Mark block used for the inode bitmap
4193 if (ext2fs_inode_bitmap_loc(fs, i)) {
4194 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4195 ext2fs_inode_bitmap_loc(fs, i))) {
4196 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
4197 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
4198 ctx->invalid_inode_bitmap_flag[i]++;
4199 ctx->invalid_bitmaps++;
4202 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4203 ext2fs_inode_bitmap_loc(fs, i));
4204 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4205 ext2fs_inode_bitmap_loc(fs, i));
4212 * These subroutines short circuits ext2fs_get_blocks and
4213 * ext2fs_check_directory; we use them since we already have the inode
4214 * structure, so there's no point in letting the ext2fs library read
4217 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
4220 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4223 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4224 return EXT2_ET_CALLBACK_NOTHANDLED;
4226 for (i=0; i < EXT2_N_BLOCKS; i++)
4227 blocks[i] = ctx->stashed_inode->i_block[i];
4231 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
4232 struct ext2_inode *inode)
4234 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4236 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4237 return EXT2_ET_CALLBACK_NOTHANDLED;
4238 *inode = *ctx->stashed_inode;
4242 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
4243 struct ext2_inode *inode)
4245 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4247 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
4248 (inode != ctx->stashed_inode))
4249 *ctx->stashed_inode = *inode;
4250 return EXT2_ET_CALLBACK_NOTHANDLED;
4253 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
4255 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4257 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4258 return EXT2_ET_CALLBACK_NOTHANDLED;
4260 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
4261 return EXT2_ET_NO_DIRECTORY;
4265 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
4268 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4272 if (ctx->block_found_map) {
4273 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
4277 if (fs->block_map) {
4278 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
4279 ext2fs_mark_bb_dirty(fs);
4282 if (!fs->block_map) {
4283 retval = ext2fs_read_block_bitmap(fs);
4288 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
4297 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
4298 blk64_t len, blk64_t *pblk, blk64_t *plen)
4300 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4303 if (ctx->block_found_map)
4304 return ext2fs_new_range(fs, flags, goal, len,
4305 ctx->block_found_map, pblk, plen);
4307 if (!fs->block_map) {
4308 retval = ext2fs_read_block_bitmap(fs);
4313 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
4317 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
4319 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4321 /* Never free a critical metadata block */
4322 if (ctx->block_found_map &&
4323 ctx->block_metadata_map &&
4325 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
4328 if (ctx->block_found_map) {
4330 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4332 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
4336 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
4337 blk_t num, int inuse)
4339 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4341 /* Never free a critical metadata block */
4342 if (ctx->block_found_map &&
4343 ctx->block_metadata_map &&
4345 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
4348 if (ctx->block_found_map) {
4350 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
4353 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
4358 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
4360 ext2_filsys fs = ctx->fs;
4362 if (use_shortcuts) {
4363 fs->get_blocks = pass1_get_blocks;
4364 fs->check_directory = pass1_check_directory;
4365 fs->read_inode = pass1_read_inode;
4366 fs->write_inode = pass1_write_inode;
4367 ctx->stashed_ino = 0;
4370 fs->check_directory = 0;
4372 fs->write_inode = 0;
4376 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
4378 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
4379 ext2fs_set_block_alloc_stats_callback(ctx->fs,
4380 e2fsck_block_alloc_stats, 0);
4381 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
4382 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
4383 e2fsck_block_alloc_stats_range, NULL);