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() */
56 #include <ext2fs/ext2_ext_attr.h>
57 /* todo remove this finally */
58 #include <ext2fs/ext2fsP.h>
63 #ifdef NO_INLINE_FUNCS
66 #define _INLINE_ inline
76 static int process_block(ext2_filsys fs, blk64_t *blocknr,
77 e2_blkcnt_t blockcnt, blk64_t ref_blk,
78 int ref_offset, void *priv_data);
79 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
80 e2_blkcnt_t blockcnt, blk64_t ref_blk,
81 int ref_offset, void *priv_data);
82 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
84 const struct ea_quota *ea_ibody_quota);
85 static void mark_table_blocks(e2fsck_t ctx);
86 static void alloc_bb_map(e2fsck_t ctx);
87 static void alloc_imagic_map(e2fsck_t ctx);
88 static void mark_inode_bad(e2fsck_t ctx, ext2_ino_t ino);
89 static void add_casefolded_dir(e2fsck_t ctx, ext2_ino_t ino);
90 static void handle_fs_bad_blocks(e2fsck_t ctx);
91 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
92 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
93 dgrp_t group, void * priv_data);
94 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
95 char *block_buf, int adjust_sign);
96 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
98 struct process_block_struct {
100 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
101 fragmented:1, compressed:1, bbcheck:1,
106 e2_blkcnt_t last_init_lblock;
107 e2_blkcnt_t last_db_block;
108 int num_illegal_blocks;
109 blk64_t previous_block;
110 struct ext2_inode *inode;
111 struct problem_context *pctx;
112 ext2fs_block_bitmap fs_meta_blocks;
115 struct extent_tree_info eti;
118 struct process_inode_block {
120 struct ea_quota ea_ibody_quota;
121 struct ext2_inode_large inode;
124 struct scan_callback_struct {
127 struct process_inode_block *inodes_to_process;
128 int *process_inode_count;
131 static void process_inodes(e2fsck_t ctx, char *block_buf,
132 struct process_inode_block *inodes_to_process,
133 int *process_inode_count);
135 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
136 EXT2_MIN_BLOCK_LOG_SIZE + 1];
139 * Check to make sure a device inode is real. Returns 1 if the device
140 * checks out, 0 if not.
142 * Note: this routine is now also used to check FIFO's and Sockets,
143 * since they have the same requirement; the i_block fields should be
146 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
147 struct ext2_inode *inode)
152 * If the index or extents flag is set, then this is a bogus
155 if (inode->i_flags & (EXT2_INDEX_FL | EXT4_EXTENTS_FL))
159 * We should be able to do the test below all the time, but
160 * because the kernel doesn't forcibly clear the device
161 * inode's additional i_block fields, there are some rare
162 * occasions when a legitimate device inode will have non-zero
163 * additional i_block fields. So for now, we only complain
164 * when the immutable flag is set, which should never happen
165 * for devices. (And that's when the problem is caused, since
166 * you can't set or clear immutable flags for devices.) Once
167 * the kernel has been fixed we can change this...
169 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
170 for (i=4; i < EXT2_N_BLOCKS; i++)
171 if (inode->i_block[i])
178 * Check to make sure a symlink inode is real. Returns 1 if the symlink
179 * checks out, 0 if not.
181 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
182 struct ext2_inode *inode, char *buf)
187 if ((inode->i_size_high || inode->i_size == 0) ||
188 (inode->i_flags & EXT2_INDEX_FL))
191 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
194 if (inode->i_flags & EXT4_EXTENTS_FL)
196 if (ext2fs_inline_data_size(fs, ino, &inline_size))
198 if (inode->i_size != inline_size)
204 if (ext2fs_is_fast_symlink(inode)) {
205 if (inode->i_flags & EXT4_EXTENTS_FL)
207 buf = (char *)inode->i_block;
208 buflen = sizeof(inode->i_block);
210 ext2_extent_handle_t handle;
211 struct ext2_extent_info info;
212 struct ext2fs_extent extent;
216 if (inode->i_flags & EXT4_EXTENTS_FL) {
217 if (ext2fs_extent_open2(fs, ino, inode, &handle))
219 if (ext2fs_extent_get_info(handle, &info) ||
220 (info.num_entries != 1) ||
221 (info.max_depth != 0)) {
222 ext2fs_extent_free(handle);
225 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT,
227 (extent.e_lblk != 0) ||
228 (extent.e_len != 1)) {
229 ext2fs_extent_free(handle);
233 ext2fs_extent_free(handle);
235 blk = inode->i_block[0];
237 for (i = 1; i < EXT2_N_BLOCKS; i++)
238 if (inode->i_block[i])
242 if (blk < fs->super->s_first_data_block ||
243 blk >= ext2fs_blocks_count(fs->super))
246 if (io_channel_read_blk64(fs->io, blk, 1, buf))
249 buflen = fs->blocksize;
252 if (inode->i_flags & EXT4_ENCRYPT_FL)
253 len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
255 len = strnlen(buf, buflen);
260 if (len != inode->i_size)
266 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
268 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
269 static void check_extents_inlinedata(e2fsck_t ctx,
270 struct problem_context *pctx)
272 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
275 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
278 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
279 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
281 #undef BAD_SPECIAL_FLAGS
284 * If the immutable (or append-only) flag is set on the inode, offer
287 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
288 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
290 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
293 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
296 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
297 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
301 * If device, fifo or socket, check size is zero -- if not offer to
304 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
306 struct ext2_inode *inode = pctx->inode;
308 if (EXT2_I_SIZE(inode) == 0)
311 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
314 ext2fs_inode_size_set(ctx->fs, inode, 0);
315 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
319 * For a given size, calculate how many blocks would be charged towards quota.
321 static blk64_t size_to_quota_blocks(ext2_filsys fs, size_t size)
325 clusters = DIV_ROUND_UP(size, fs->blocksize << fs->cluster_ratio_bits);
326 return EXT2FS_C2B(fs, clusters);
330 * Check validity of EA inode. Return 0 if EA inode is valid, otherwise return
333 static problem_t check_large_ea_inode(e2fsck_t ctx,
334 struct ext2_ext_attr_entry *entry,
335 struct problem_context *pctx,
336 blk64_t *quota_blocks)
338 struct ext2_inode inode;
339 __u32 hash, signed_hash;
342 /* Check if inode is within valid range */
343 if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
344 (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
345 pctx->num = entry->e_value_inum;
346 return PR_1_ATTR_VALUE_EA_INODE;
349 e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
351 retval = ext2fs_ext_attr_hash_entry3(ctx->fs, entry, NULL, &hash,
354 com_err("check_large_ea_inode", retval,
355 _("while hashing entry with e_value_inum = %u"),
356 entry->e_value_inum);
360 if ((hash == entry->e_hash) || (signed_hash == entry->e_hash)) {
361 *quota_blocks = size_to_quota_blocks(ctx->fs,
362 entry->e_value_size);
364 /* This might be an old Lustre-style ea_inode reference. */
365 if (inode.i_mtime == pctx->ino &&
366 inode.i_generation == pctx->inode->i_generation) {
369 /* If target inode is also missing EA_INODE flag,
370 * this is likely to be a bad reference.
372 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
373 pctx->num = entry->e_value_inum;
374 return PR_1_ATTR_VALUE_EA_INODE;
376 pctx->num = entry->e_hash;
377 return PR_1_ATTR_HASH;
382 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
383 pctx->num = entry->e_value_inum;
384 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
385 inode.i_flags |= EXT4_EA_INODE_FL;
386 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
389 return PR_1_ATTR_NO_EA_INODE_FL;
395 static int alloc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx)
397 pctx->errcode = ea_refcount_create(0, &ctx->ea_inode_refs);
400 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
401 ctx->flags |= E2F_FLAG_ABORT;
407 static void inc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx,
408 struct ext2_ext_attr_entry *first, void *end)
410 struct ext2_ext_attr_entry *entry = first;
411 struct ext2_ext_attr_entry *np = EXT2_EXT_ATTR_NEXT(entry);
414 while ((void *) entry < end && (void *) np < end &&
415 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
416 if (!entry->e_value_inum)
418 if (!ctx->ea_inode_refs && !alloc_ea_inode_refs(ctx, pctx))
420 ea_refcount_fetch(ctx->ea_inode_refs, entry->e_value_inum,
422 if (refs == EA_INODE_NO_REFS)
426 ea_refcount_store(ctx->ea_inode_refs, entry->e_value_inum, refs);
429 np = EXT2_EXT_ATTR_NEXT(entry);
434 * Make sure inode is tracked as EA inode. We use special EA_INODE_NO_REFS
435 * value if we didn't find any xattrs referencing this inode yet.
437 static int track_ea_inode(e2fsck_t ctx, struct problem_context *pctx,
442 if (!ctx->ea_inode_refs && !alloc_ea_inode_refs(ctx, pctx))
445 ea_refcount_fetch(ctx->ea_inode_refs, ino, &refs);
449 pctx->errcode = ea_refcount_store(ctx->ea_inode_refs, ino,
453 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
454 ctx->flags |= E2F_FLAG_ABORT;
460 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx,
461 struct ea_quota *ea_ibody_quota)
463 struct ext2_super_block *sb = ctx->fs->super;
464 struct ext2_inode_large *inode;
465 struct ext2_ext_attr_entry *entry;
466 char *start, *header, *end;
467 unsigned int storage_size, remain;
468 problem_t problem = 0;
471 ea_ibody_quota->blocks = 0;
472 ea_ibody_quota->inodes = 0;
474 inode = (struct ext2_inode_large *) pctx->inode;
475 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
476 inode->i_extra_isize;
477 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
478 inode->i_extra_isize;
479 end = header + storage_size;
480 start = header + sizeof(__u32);
481 entry = (struct ext2_ext_attr_entry *) start;
483 /* scan all entry's headers first */
485 /* take finish entry 0UL into account */
486 remain = storage_size - sizeof(__u32);
488 region = region_create(0, storage_size);
490 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
492 ctx->flags |= E2F_FLAG_ABORT;
495 if (region_allocate(region, 0, sizeof(__u32))) {
496 problem = PR_1_INODE_EA_ALLOC_COLLISION;
500 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
501 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
504 if (region_allocate(region, (char *)entry - (char *)header,
505 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
506 problem = PR_1_INODE_EA_ALLOC_COLLISION;
510 /* header eats this space */
511 remain -= sizeof(struct ext2_ext_attr_entry);
513 /* is attribute name valid? */
514 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
515 pctx->num = entry->e_name_len;
516 problem = PR_1_ATTR_NAME_LEN;
520 /* attribute len eats this space */
521 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
523 if (entry->e_value_inum == 0) {
524 /* check value size */
525 if (entry->e_value_size > remain) {
526 pctx->num = entry->e_value_size;
527 problem = PR_1_ATTR_VALUE_SIZE;
531 if (entry->e_value_size &&
532 region_allocate(region,
533 sizeof(__u32) + entry->e_value_offs,
535 entry->e_value_size))) {
536 problem = PR_1_INODE_EA_ALLOC_COLLISION;
540 hash = ext2fs_ext_attr_hash_entry(entry,
541 start + entry->e_value_offs);
542 if (entry->e_hash != 0 && entry->e_hash != hash)
543 hash = ext2fs_ext_attr_hash_entry_signed(entry,
544 start + entry->e_value_offs);
546 /* e_hash may be 0 in older inode's ea */
547 if (entry->e_hash != 0 && entry->e_hash != hash) {
548 pctx->num = entry->e_hash;
549 problem = PR_1_ATTR_HASH;
553 blk64_t quota_blocks;
555 if (!ext2fs_has_feature_ea_inode(sb) &&
556 fix_problem(ctx, PR_1_EA_INODE_FEATURE, pctx)) {
557 ext2fs_set_feature_ea_inode(sb);
558 ext2fs_mark_super_dirty(ctx->fs);
561 problem = check_large_ea_inode(ctx, entry, pctx,
566 ea_ibody_quota->blocks += quota_blocks;
567 ea_ibody_quota->inodes++;
570 /* If EA value is stored in external inode then it does not
571 * consume space here */
572 if (entry->e_value_inum == 0)
573 remain -= entry->e_value_size;
575 entry = EXT2_EXT_ATTR_NEXT(entry);
578 if (region_allocate(region, (char *)entry - (char *)header,
580 problem = PR_1_INODE_EA_ALLOC_COLLISION;
587 * it seems like a corruption. it's very unlikely we could repair
588 * EA(s) in automatic fashion -bzzz
590 if (problem == 0 || !fix_problem(ctx, problem, pctx)) {
591 inc_ea_inode_refs(ctx, pctx,
592 (struct ext2_ext_attr_entry *)start, end);
596 /* simply remove all possible EA(s) */
597 *((__u32 *)header) = 0UL;
598 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
599 EXT2_INODE_SIZE(sb), "pass1");
600 ea_ibody_quota->blocks = 0;
601 ea_ibody_quota->inodes = 0;
604 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
605 return (xtime & (1U << 31)) != 0 &&
606 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
609 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
610 check_inode_extra_negative_epoch(inode->i_##xtime, \
611 inode->i_##xtime##_extra)
613 /* When today's date is earlier than 2242, we assume that atimes,
614 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
615 * actually pre-1970 dates mis-encoded.
617 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
619 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx,
620 struct ea_quota *ea_ibody_quota)
622 struct ext2_super_block *sb = ctx->fs->super;
623 struct ext2_inode_large *inode;
627 ea_ibody_quota->blocks = 0;
628 ea_ibody_quota->inodes = 0;
630 inode = (struct ext2_inode_large *) pctx->inode;
631 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
632 /* this isn't large inode. so, nothing to check */
637 printf("inode #%u, i_extra_size %d\n", pctx->ino,
638 inode->i_extra_isize);
640 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
641 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
642 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
644 * For now we will allow i_extra_isize to be 0, but really
645 * implementations should never allow i_extra_isize to be 0
647 if (inode->i_extra_isize &&
648 (inode->i_extra_isize < min || inode->i_extra_isize > max ||
649 inode->i_extra_isize & 3)) {
650 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
652 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
653 inode->i_extra_isize = sb->s_want_extra_isize;
655 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
656 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
657 EXT2_INODE_SIZE(sb), "pass1");
660 /* check if there is no place for an EA header */
661 if (inode->i_extra_isize >= max - sizeof(__u32))
664 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
665 inode->i_extra_isize);
666 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
667 /* it seems inode has an extended attribute(s) in body */
668 check_ea_in_inode(ctx, pctx, ea_ibody_quota);
672 * If the inode's extended atime (ctime, crtime, mtime) is stored in
673 * the old, invalid format, repair it.
675 if (((sizeof(time_t) <= 4) ||
676 (((sizeof(time_t) > 4) &&
677 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
678 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
679 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
680 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
681 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
683 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
686 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
687 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
688 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
689 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
690 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
691 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
692 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
693 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
694 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
695 EXT2_INODE_SIZE(sb), "pass1");
701 * Check to see if the inode might really be a directory, despite i_mode
703 * This is a lot of complexity for something for which I'm not really
704 * convinced happens frequently in the wild. If for any reason this
705 * causes any problems, take this code out.
706 * [tytso:20070331.0827EDT]
708 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
711 struct ext2_inode *inode = pctx->inode;
712 struct ext2_dir_entry *dirent;
715 unsigned int i, rec_len, not_device = 0;
720 * If the mode looks OK, we believe it. If the first block in
721 * the i_block array is 0, this cannot be a directory. If the
722 * inode is extent-mapped, it is still the case that the latter
723 * cannot be 0 - the magic number in the extent header would make
726 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
727 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
731 * Check the block numbers in the i_block array for validity:
732 * zero blocks are skipped (but the first one cannot be zero -
733 * see above), other blocks are checked against the first and
734 * max data blocks (from the the superblock) and against the
735 * block bitmap. Any invalid block found means this cannot be
738 * If there are non-zero blocks past the fourth entry, then
739 * this cannot be a device file: we remember that for the next
742 * For extent mapped files, we don't do any sanity checking:
743 * just try to get the phys block of logical block 0 and run
746 * For inline data files, we just try to get the size of inline
747 * data. If it's true, we will treat it as a directory.
750 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
751 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
752 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
755 unsigned int rec_len2;
756 struct ext2_dir_entry de;
758 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
761 * If the size isn't a multiple of 4, it's probably not a
767 * If the first 10 bytes don't look like a directory entry,
768 * it's probably not a directory.
770 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
771 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
772 EXT2_DIR_REC_LEN(0));
773 dotdot = ext2fs_le32_to_cpu(dotdot);
774 de.inode = ext2fs_le32_to_cpu(de.inode);
775 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
776 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
777 if (dotdot >= ctx->fs->super->s_inodes_count ||
778 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
779 dotdot != EXT2_ROOT_INO) ||
780 de.inode >= ctx->fs->super->s_inodes_count ||
781 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
783 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
784 EXT4_INLINE_DATA_DOTDOT_SIZE)
786 /* device files never have a "system.data" entry */
788 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
790 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
793 /* device files are never extent mapped */
796 for (i=0; i < EXT2_N_BLOCKS; i++) {
797 blk = inode->i_block[i];
803 if (blk < ctx->fs->super->s_first_data_block ||
804 blk >= ext2fs_blocks_count(ctx->fs->super) ||
805 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
807 return; /* Invalid block, can't be dir */
809 blk = inode->i_block[0];
813 * If the mode says this is a device file and the i_links_count field
814 * is sane and we have not ruled it out as a device file previously,
815 * we declare it a device file, not a directory.
817 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
818 (inode->i_links_count == 1) && !not_device)
821 /* read the first block */
822 ehandler_operation(_("reading directory block"));
823 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
824 ehandler_operation(0);
828 dirent = (struct ext2_dir_entry *) buf;
829 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
832 if ((ext2fs_dirent_name_len(dirent) != 1) ||
833 (dirent->name[0] != '.') ||
834 (dirent->inode != pctx->ino) ||
837 (rec_len >= ctx->fs->blocksize - 12))
840 dirent = (struct ext2_dir_entry *) (buf + rec_len);
841 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
844 if ((ext2fs_dirent_name_len(dirent) != 2) ||
845 (dirent->name[0] != '.') ||
846 (dirent->name[1] != '.') ||
852 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
853 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
854 e2fsck_write_inode_full(ctx, pctx->ino, inode,
855 EXT2_INODE_SIZE(ctx->fs->super),
856 "check_is_really_dir");
860 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
861 int flags, ext2_icount_t hint,
864 unsigned int threshold;
865 unsigned int save_type;
873 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
875 profile_get_uint(ctx->profile, "scratch_files",
876 "numdirs_threshold", 0, 0, &threshold);
877 profile_get_boolean(ctx->profile, "scratch_files",
878 "icount", 0, 1, &enable);
880 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
882 num_dirs = 1024; /* Guess */
884 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
885 (!threshold || num_dirs > threshold)) {
886 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
891 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
893 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
894 flags |= EXT2_ICOUNT_OPT_FULLMAP;
895 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
896 ctx->fs->default_bitmap_type = save_type;
900 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
902 struct problem_context *pctx)
905 struct ext2_inode_large inode;
908 * Reread inode. If we don't see checksum error, then this inode
909 * has been fixed elsewhere.
911 ctx->stashed_ino = 0;
912 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
914 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
920 * Checksum still doesn't match. That implies that the inode passes
921 * all the sanity checks, so maybe the checksum is simply corrupt.
922 * See if the user will go for fixing that.
924 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
927 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
932 static void reserve_block_for_root_repair(e2fsck_t ctx)
936 ext2_filsys fs = ctx->fs;
938 ctx->root_repair_block = 0;
939 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
942 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
945 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
946 ctx->root_repair_block = blk;
949 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
953 ext2_filsys fs = ctx->fs;
954 static const char name[] = "lost+found";
957 ctx->lnf_repair_block = 0;
958 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
961 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
964 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
965 ctx->lnf_repair_block = blk;
968 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
969 struct ext2_inode *inode,
973 struct ext2_xattr_handle *handle;
976 retval = ext2fs_xattrs_open(fs, ino, &handle);
980 retval = ext2fs_xattrs_read_inode(handle,
981 (struct ext2_inode_large *)inode);
985 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
990 (void) ext2fs_xattrs_close(&handle);
994 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
995 struct problem_context *pctx,
1002 * If the inode failed the checksum and the user didn't
1003 * clear the inode, test the checksum again -- if it still
1004 * fails, ask the user if the checksum should be corrected.
1006 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
1008 ctx->flags |= E2F_FLAG_ABORT;
1010 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
1012 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
1013 if ((ctx)->flags & E2F_FLAG_ABORT) \
1017 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
1022 for (i = 0; i < EXT2_N_BLOCKS; i++) {
1023 x = inode->i_block[i];
1024 #ifdef WORDS_BIGENDIAN
1025 x = ext2fs_swab32(x);
1027 if (x >= ext2fs_blocks_count(fs->super))
1035 * Figure out what to do with an inode that has both extents and inline data
1036 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
1038 static int fix_inline_data_extents_file(e2fsck_t ctx,
1040 struct ext2_inode *inode,
1042 struct problem_context *pctx)
1044 size_t max_inline_ea_size;
1045 ext2_filsys fs = ctx->fs;
1048 /* Both feature flags not set? Just run the regular checks */
1049 if (!ext2fs_has_feature_extents(fs->super) &&
1050 !ext2fs_has_feature_inline_data(fs->super))
1053 /* Clear both flags if it's a special file */
1054 if (LINUX_S_ISCHR(inode->i_mode) ||
1055 LINUX_S_ISBLK(inode->i_mode) ||
1056 LINUX_S_ISFIFO(inode->i_mode) ||
1057 LINUX_S_ISSOCK(inode->i_mode)) {
1058 check_extents_inlinedata(ctx, pctx);
1062 /* If it looks like an extent tree, try to clear inlinedata */
1063 if (ext2fs_extent_header_verify(inode->i_block,
1064 sizeof(inode->i_block)) == 0 &&
1065 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1066 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1071 /* If it looks short enough to be inline data, try to clear extents */
1072 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1073 max_inline_ea_size = inode_size -
1074 (EXT2_GOOD_OLD_INODE_SIZE +
1075 ((struct ext2_inode_large *)inode)->i_extra_isize);
1077 max_inline_ea_size = 0;
1078 if (EXT2_I_SIZE(inode) <
1079 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1080 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1081 inode->i_flags &= ~EXT4_EXTENTS_FL;
1087 * Too big for inline data, but no evidence of extent tree -
1088 * maybe it's a block map file? If the mappings all look valid?
1090 if (could_be_block_map(fs, inode) &&
1091 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1092 #ifdef WORDS_BIGENDIAN
1095 for (i = 0; i < EXT2_N_BLOCKS; i++)
1096 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1099 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1104 /* Oh well, just clear the busted inode. */
1105 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1106 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1112 e2fsck_write_inode(ctx, ino, inode, "pass1");
1117 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1119 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1120 dgrp_t start = *group, grp;
1121 blk64_t blocks_to_read = 0;
1122 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1124 if (ctx->readahead_kb == 0)
1127 /* Keep iterating groups until we have enough to readahead */
1128 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1129 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
1130 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1132 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1133 ext2fs_bg_itable_unused(ctx->fs, grp);
1134 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1136 if (blocks_to_read * ctx->fs->blocksize >
1137 ctx->readahead_kb * 1024)
1141 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1143 if (err == EAGAIN) {
1144 ctx->readahead_kb /= 2;
1150 /* Error; disable itable readahead */
1151 *group = ctx->fs->group_desc_count;
1152 *next_ino = ctx->fs->super->s_inodes_count;
1155 * Don't do more readahead until we've reached the first inode
1156 * of the last inode scan buffer block for the last group.
1159 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1160 ctx->inode_buffer_blocks :
1161 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1162 ctx->fs->blocksize /
1163 EXT2_INODE_SIZE(ctx->fs->super);
1165 *next_ino = inodes_in_group -
1166 (inodes_in_group % inodes_per_buffer) + 1 +
1167 (grp * ctx->fs->super->s_inodes_per_group);
1172 * Check if the passed ino is one of the used superblock quota inodes.
1174 * Before the quota inodes were journaled, older superblock quota inodes
1175 * were just regular files in the filesystem and not reserved inodes. This
1176 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1177 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1179 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1181 enum quota_type qtype;
1183 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1184 if (*quota_sb_inump(sb, qtype) == ino)
1191 * Check if the passed ino is one of the reserved quota inodes.
1192 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1193 * inodes. These inodes may or may not be in use by the quota feature.
1195 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1197 enum quota_type qtype;
1199 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1200 if (quota_type2inum(qtype, fs->super) == ino)
1206 static int e2fsck_should_abort(e2fsck_t ctx)
1208 e2fsck_t global_ctx;
1210 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1213 if (ctx->global_ctx) {
1214 global_ctx = ctx->global_ctx;
1215 if (global_ctx->flags & E2F_FLAG_SIGNAL_MASK)
1221 void e2fsck_pass1_run(e2fsck_t ctx)
1224 ext2_filsys fs = ctx->fs;
1226 struct ext2_inode *inode = NULL;
1227 ext2_inode_scan scan = NULL;
1228 char *block_buf = NULL;
1229 #ifdef RESOURCE_TRACK
1230 struct resource_track rtrack;
1232 unsigned char frag, fsize;
1233 struct problem_context pctx;
1234 struct scan_callback_struct scan_struct;
1235 struct ext2_super_block *sb = ctx->fs->super;
1237 const char *eop_next_inode = _("getting next inode from scan");
1238 int imagic_fs, extent_fs, inlinedata_fs, casefold_fs;
1239 int low_dtime_check = 1;
1240 unsigned int inode_size = EXT2_INODE_SIZE(fs->super);
1241 unsigned int bufsize;
1242 int failed_csum = 0;
1243 ext2_ino_t ino_threshold = 0;
1244 dgrp_t ra_group = 0;
1245 struct ea_quota ea_ibody_quota;
1246 struct process_inode_block *inodes_to_process;
1247 int process_inode_count;
1250 init_resource_track(&rtrack, ctx->fs->io);
1251 clear_problem_context(&pctx);
1253 /* If we can do readahead, figure out how many groups to pull in. */
1254 if (!e2fsck_can_readahead(ctx->fs))
1255 ctx->readahead_kb = 0;
1256 else if (ctx->readahead_kb == ~0ULL)
1257 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1258 pass1_readahead(ctx, &ra_group, &ino_threshold);
1260 if (!(ctx->options & E2F_OPT_PREEN))
1261 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1263 if (ext2fs_has_feature_dir_index(fs->super) &&
1264 !(ctx->options & E2F_OPT_NO)) {
1265 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1266 ctx->dirs_to_hash = 0;
1270 mtrace_print("Pass 1");
1273 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1274 extent_fs = ext2fs_has_feature_extents(sb);
1275 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1276 casefold_fs = ext2fs_has_feature_casefold(sb);
1279 * Allocate bitmaps structures
1281 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1282 EXT2FS_BMAP64_RBTREE,
1284 &ctx->inode_used_map);
1287 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1288 ctx->flags |= E2F_FLAG_ABORT;
1291 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1292 _("directory inode map"),
1293 ctx->global_ctx ? EXT2FS_BMAP64_RBTREE :
1294 EXT2FS_BMAP64_AUTODIR,
1295 "inode_dir_map", &ctx->inode_dir_map);
1298 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1299 ctx->flags |= E2F_FLAG_ABORT;
1302 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1303 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1304 "inode_reg_map", &ctx->inode_reg_map);
1307 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1308 ctx->flags |= E2F_FLAG_ABORT;
1311 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1312 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1313 "block_found_map", &ctx->block_found_map);
1316 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1317 ctx->flags |= E2F_FLAG_ABORT;
1320 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1321 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1322 "block_metadata_map", &ctx->block_metadata_map);
1325 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1326 ctx->flags |= E2F_FLAG_ABORT;
1331 e2fsck_allocate_inode_bitmap(fs,
1332 _("inode casefold map"),
1333 EXT2FS_BMAP64_RBTREE,
1334 "inode_casefold_map",
1335 &ctx->inode_casefold_map);
1338 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1339 ctx->flags |= E2F_FLAG_ABORT;
1343 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1344 &ctx->inode_link_info);
1346 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1347 ctx->flags |= E2F_FLAG_ABORT;
1350 bufsize = inode_size;
1351 if (bufsize < sizeof(struct ext2_inode_large))
1352 bufsize = sizeof(struct ext2_inode_large);
1353 inode = (struct ext2_inode *)
1354 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1356 inodes_to_process = (struct process_inode_block *)
1357 e2fsck_allocate_memory(ctx,
1358 (ctx->process_inode_size *
1359 sizeof(struct process_inode_block)),
1360 "array of inodes to process");
1361 process_inode_count = 0;
1363 pctx.errcode = ext2fs_init_dblist(fs, 0);
1365 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1366 ctx->flags |= E2F_FLAG_ABORT;
1371 * If the last orphan field is set, clear it, since the pass1
1372 * processing will automatically find and clear the orphans.
1373 * In the future, we may want to try using the last_orphan
1374 * linked list ourselves, but for now, we clear it so that the
1375 * ext3 mount code won't get confused.
1377 if (!(ctx->options & E2F_OPT_READONLY)) {
1378 if (fs->super->s_last_orphan) {
1379 fs->super->s_last_orphan = 0;
1380 ext2fs_mark_super_dirty(fs);
1384 mark_table_blocks(ctx);
1385 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1386 &ctx->block_found_map);
1388 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1389 ctx->flags |= E2F_FLAG_ABORT;
1392 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1393 "block iterate buffer");
1394 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1395 e2fsck_use_inode_shortcuts(ctx, 1);
1396 e2fsck_intercept_block_allocations(ctx);
1397 old_op = ehandler_operation(_("opening inode scan"));
1398 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1400 ehandler_operation(old_op);
1402 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1403 ctx->flags |= E2F_FLAG_ABORT;
1406 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1407 EXT2_SF_WARN_GARBAGE_INODES, 0);
1408 ctx->stashed_inode = inode;
1409 scan_struct.ctx = ctx;
1410 scan_struct.block_buf = block_buf;
1411 scan_struct.inodes_to_process = inodes_to_process;
1412 scan_struct.process_inode_count = &process_inode_count;
1413 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1414 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1415 ctx->fs->group_desc_count)))
1418 if (((tm = ext2fs_get_tstamp(fs->super, s_wtime)) &&
1419 tm < fs->super->s_inodes_count) ||
1420 ((tm = ext2fs_get_tstamp(fs->super, s_mtime)) &&
1421 tm < fs->super->s_inodes_count) ||
1422 ((tm = ext2fs_get_tstamp(fs->super, s_mkfs_time)) &&
1423 tm < fs->super->s_inodes_count))
1424 low_dtime_check = 0;
1426 if (ext2fs_has_feature_mmp(fs->super) &&
1427 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1428 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1429 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1430 fs->super->s_mmp_block);
1432 /* Set up ctx->lost_and_found if possible */
1433 (void) e2fsck_get_lost_and_found(ctx, 0);
1436 if (ctx->global_ctx) {
1437 if (ctx->options & E2F_OPT_DEBUG &&
1438 ctx->options & E2F_OPT_MULTITHREAD)
1439 fprintf(stderr, "thread %d jumping to group %d\n",
1440 ctx->thread_info.et_thread_index,
1441 ctx->thread_info.et_group_start);
1442 pctx.errcode = ext2fs_inode_scan_goto_blockgroup(scan,
1443 ctx->thread_info.et_group_start);
1445 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1446 ctx->flags |= E2F_FLAG_ABORT;
1453 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1454 if (e2fsck_mmp_update(fs))
1455 fatal_error(ctx, 0);
1457 old_op = ehandler_operation(eop_next_inode);
1458 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1460 if (ino > ino_threshold)
1461 pass1_readahead(ctx, &ra_group, &ino_threshold);
1462 ehandler_operation(old_op);
1463 if (e2fsck_should_abort(ctx))
1465 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1467 * If badblocks says badblocks is bad, offer to clear
1468 * the list, update the in-core bb list, and restart
1471 if (ino == EXT2_BAD_INO &&
1472 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1476 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1477 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1478 ctx->fs->badblocks = NULL;
1479 err = ext2fs_read_bb_inode(ctx->fs,
1480 &ctx->fs->badblocks);
1482 fix_problem(ctx, PR_1_ISCAN_ERROR,
1484 ctx->flags |= E2F_FLAG_ABORT;
1486 ctx->flags |= E2F_FLAG_RESTART;
1489 if (!ctx->inode_bb_map)
1491 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1492 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1495 if (pctx.errcode == EXT2_ET_SCAN_FINISHED)
1498 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1499 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1500 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1501 ctx->flags |= E2F_FLAG_ABORT;
1507 if (ctx->global_ctx)
1508 ctx->thread_info.et_inode_number++;
1512 ctx->stashed_ino = ino;
1514 /* Clear trashed inode? */
1515 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1516 inode->i_links_count > 0 &&
1517 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1519 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1521 failed_csum = pctx.errcode != 0;
1524 * Check for inodes who might have been part of the
1525 * orphaned list linked list. They should have gotten
1526 * dealt with by now, unless the list had somehow been
1529 * FIXME: In the future, inodes which are still in use
1530 * (and which are therefore) pending truncation should
1531 * be handled specially. Right now we just clear the
1532 * dtime field, and the normal e2fsck handling of
1533 * inodes where i_size and the inode blocks are
1534 * inconsistent is to fix i_size, instead of releasing
1535 * the extra blocks. This won't catch the inodes that
1536 * was at the end of the orphan list, but it's better
1537 * than nothing. The right answer is that there
1538 * shouldn't be any bugs in the orphan list handling. :-)
1540 if (inode->i_dtime && low_dtime_check &&
1541 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1542 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1543 inode->i_dtime = inode->i_links_count ?
1545 e2fsck_write_inode(ctx, ino, inode,
1551 if (inode->i_links_count) {
1552 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1553 ino, inode->i_links_count);
1555 pctx.num = inode->i_links_count;
1556 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1557 ctx->flags |= E2F_FLAG_ABORT;
1560 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1561 !quota_inum_is_reserved(fs, ino)) {
1562 if (!inode->i_dtime && inode->i_mode) {
1563 if (fix_problem(ctx,
1564 PR_1_ZERO_DTIME, &pctx)) {
1565 ext2fs_set_dtime(fs, inode);
1566 e2fsck_write_inode(ctx, ino, inode,
1571 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1575 if ((inode->i_flags & EXT4_CASEFOLD_FL) &&
1576 ((!LINUX_S_ISDIR(inode->i_mode) &&
1577 fix_problem(ctx, PR_1_CASEFOLD_NONDIR, &pctx)) ||
1579 fix_problem(ctx, PR_1_CASEFOLD_FEATURE, &pctx)))) {
1580 inode->i_flags &= ~EXT4_CASEFOLD_FL;
1581 e2fsck_write_inode(ctx, ino, inode, "pass1");
1584 if (inode->i_flags & EXT4_EA_INODE_FL) {
1585 if (!LINUX_S_ISREG(inode->i_mode) &&
1586 fix_problem(ctx, PR_1_EA_INODE_NONREG, &pctx)) {
1587 inode->i_flags &= ~EXT4_EA_INODE_FL;
1588 e2fsck_write_inode(ctx, ino, inode, "pass1");
1590 if (inode->i_flags & EXT4_EA_INODE_FL)
1591 if (!track_ea_inode(ctx, &pctx, ino))
1595 /* Conflicting inlinedata/extents inode flags? */
1596 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1597 (inode->i_flags & EXT4_EXTENTS_FL)) {
1598 int res = fix_inline_data_extents_file(ctx, ino, inode,
1602 /* skip FINISH_INODE_LOOP */
1607 /* Test for incorrect inline_data flags settings. */
1608 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1609 (ino >= EXT2_FIRST_INODE(fs->super))) {
1612 pctx.errcode = get_inline_data_ea_size(fs, ino, inode,
1614 if (!pctx.errcode &&
1615 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1616 ext2fs_set_feature_inline_data(sb);
1617 ext2fs_mark_super_dirty(fs);
1619 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1620 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1621 /* skip FINISH_INODE_LOOP */
1626 /* Test for inline data flag but no attr */
1627 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1628 (ino >= EXT2_FIRST_INODE(fs->super))) {
1635 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1636 err = get_inline_data_ea_size(fs, ino, inode, &size);
1637 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1638 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1642 /* Everything is awesome... */
1644 case EXT2_ET_BAD_EA_BLOCK_NUM:
1645 case EXT2_ET_BAD_EA_HASH:
1646 case EXT2_ET_BAD_EA_HEADER:
1647 case EXT2_ET_EA_BAD_NAME_LEN:
1648 case EXT2_ET_EA_BAD_VALUE_SIZE:
1649 case EXT2_ET_EA_KEY_NOT_FOUND:
1650 case EXT2_ET_EA_NO_SPACE:
1651 case EXT2_ET_MISSING_EA_FEATURE:
1652 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1653 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1654 case EXT2_ET_INLINE_DATA_NO_SPACE:
1655 case EXT2_ET_NO_INLINE_DATA:
1656 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1657 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1658 case EXT2_ET_EA_INODE_CORRUPTED:
1659 /* broken EA or no system.data EA; truncate */
1660 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1662 err = ext2fs_inode_size_set(fs, inode, 0);
1665 ctx->flags |= E2F_FLAG_ABORT;
1668 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1669 memset(&inode->i_block, 0,
1670 sizeof(inode->i_block));
1671 e2fsck_write_inode(ctx, ino, inode,
1677 /* Some other kind of non-xattr error? */
1679 ctx->flags |= E2F_FLAG_ABORT;
1685 * Test for incorrect extent flag settings.
1687 * On big-endian machines we must be careful:
1688 * When the inode is read, the i_block array is not swapped
1689 * if the extent flag is set. Therefore if we are testing
1690 * for or fixing a wrongly-set flag, we must potentially
1691 * (un)swap before testing, or after fixing.
1695 * In this case the extents flag was set when read, so
1696 * extent_header_verify is ok. If the inode is cleared,
1697 * no need to swap... so no extra swapping here.
1699 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1700 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1701 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1702 if ((ext2fs_extent_header_verify(inode->i_block,
1703 sizeof(inode->i_block)) == 0) &&
1704 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1705 ext2fs_set_feature_extents(sb);
1706 ext2fs_mark_super_dirty(fs);
1708 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1710 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1711 if (ino == EXT2_BAD_INO)
1712 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1714 /* skip FINISH_INODE_LOOP */
1720 * For big-endian machines:
1721 * If the inode didn't have the extents flag set when it
1722 * was read, then the i_blocks array was swapped. To test
1723 * as an extents header, we must swap it back first.
1724 * IF we then set the extents flag, the entire i_block
1725 * array must be un/re-swapped to make it proper extents data.
1727 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1728 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1729 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1730 (LINUX_S_ISREG(inode->i_mode) ||
1731 LINUX_S_ISDIR(inode->i_mode))) {
1733 #ifdef WORDS_BIGENDIAN
1734 __u32 tmp_block[EXT2_N_BLOCKS];
1736 for (i = 0; i < EXT2_N_BLOCKS; i++)
1737 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1740 ehp = inode->i_block;
1742 if ((ext2fs_extent_header_verify(ehp,
1743 sizeof(inode->i_block)) == 0) &&
1744 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1745 inode->i_flags |= EXT4_EXTENTS_FL;
1746 #ifdef WORDS_BIGENDIAN
1747 memcpy(inode->i_block, tmp_block,
1748 sizeof(inode->i_block));
1750 e2fsck_write_inode(ctx, ino, inode, "pass1");
1755 if (ino == EXT2_BAD_INO) {
1756 struct process_block_struct pb;
1758 if ((failed_csum || inode->i_mode || inode->i_uid ||
1759 inode->i_gid || inode->i_links_count ||
1760 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1761 inode->i_file_acl) &&
1762 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1763 memset(inode, 0, sizeof(struct ext2_inode));
1764 e2fsck_write_inode(ctx, ino, inode,
1769 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1770 &pb.fs_meta_blocks);
1773 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1774 ctx->flags |= E2F_FLAG_ABORT;
1777 pb.ino = EXT2_BAD_INO;
1778 pb.num_blocks = pb.last_block = 0;
1779 pb.last_db_block = -1;
1780 pb.num_illegal_blocks = 0;
1781 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1782 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1786 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1787 block_buf, process_bad_block, &pb);
1788 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1790 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1791 ctx->flags |= E2F_FLAG_ABORT;
1795 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1796 ctx->flags |= E2F_FLAG_ABORT;
1799 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1800 clear_problem_context(&pctx);
1801 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1803 } else if (ino == EXT2_ROOT_INO) {
1805 * Make sure the root inode is a directory; if
1806 * not, offer to clear it. It will be
1807 * regenerated in pass #3.
1809 if (!LINUX_S_ISDIR(inode->i_mode)) {
1810 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1814 * If dtime is set, offer to clear it. mke2fs
1815 * version 0.2b created filesystems with the
1816 * dtime field set for the root and lost+found
1817 * directories. We won't worry about
1818 * /lost+found, since that can be regenerated
1819 * easily. But we will fix the root directory
1820 * as a special case.
1822 if (inode->i_dtime && inode->i_links_count) {
1823 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1825 e2fsck_write_inode(ctx, ino, inode,
1830 } else if (ino == EXT2_JOURNAL_INO) {
1831 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1832 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1833 if (!LINUX_S_ISREG(inode->i_mode) &&
1834 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1836 inode->i_mode = LINUX_S_IFREG;
1837 e2fsck_write_inode(ctx, ino, inode,
1841 check_blocks(ctx, &pctx, block_buf, NULL);
1842 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1845 if ((inode->i_links_count ||
1846 inode->i_blocks || inode->i_block[0]) &&
1847 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1849 memset(inode, 0, inode_size);
1850 ext2fs_icount_store(ctx->inode_link_info,
1852 e2fsck_write_inode_full(ctx, ino, inode,
1853 inode_size, "pass1");
1856 } else if (quota_inum_is_reserved(fs, ino)) {
1857 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1858 if (ext2fs_has_feature_quota(fs->super) &&
1859 quota_inum_is_super(fs->super, ino)) {
1860 if (!LINUX_S_ISREG(inode->i_mode) &&
1861 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1863 inode->i_mode = LINUX_S_IFREG;
1864 e2fsck_write_inode(ctx, ino, inode,
1868 check_blocks(ctx, &pctx, block_buf, NULL);
1869 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1872 if ((inode->i_links_count ||
1873 inode->i_blocks || inode->i_block[0]) &&
1874 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1876 memset(inode, 0, inode_size);
1877 ext2fs_icount_store(ctx->inode_link_info,
1879 e2fsck_write_inode_full(ctx, ino, inode,
1880 inode_size, "pass1");
1883 } else if (ino == fs->super->s_orphan_file_inum) {
1884 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1885 if (ext2fs_has_feature_orphan_file(fs->super)) {
1886 if (!LINUX_S_ISREG(inode->i_mode) &&
1887 fix_problem(ctx, PR_1_ORPHAN_FILE_BAD_MODE,
1889 inode->i_mode = LINUX_S_IFREG;
1890 e2fsck_write_inode(ctx, ino, inode,
1894 check_blocks(ctx, &pctx, block_buf, NULL);
1895 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1898 if ((inode->i_links_count ||
1899 inode->i_blocks || inode->i_block[0]) &&
1900 fix_problem(ctx, PR_1_ORPHAN_FILE_NOT_CLEAR,
1902 memset(inode, 0, inode_size);
1903 ext2fs_icount_store(ctx->inode_link_info, ino,
1905 e2fsck_write_inode_full(ctx, ino, inode,
1906 inode_size, "pass1");
1909 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1910 problem_t problem = 0;
1912 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1913 if (ino == EXT2_BOOT_LOADER_INO) {
1914 if (LINUX_S_ISDIR(inode->i_mode))
1915 problem = PR_1_RESERVED_BAD_MODE;
1916 } else if (ino == EXT2_RESIZE_INO) {
1917 if (inode->i_mode &&
1918 !LINUX_S_ISREG(inode->i_mode))
1919 problem = PR_1_RESERVED_BAD_MODE;
1921 if (inode->i_mode != 0)
1922 problem = PR_1_RESERVED_BAD_MODE;
1925 if (fix_problem(ctx, problem, &pctx)) {
1927 e2fsck_write_inode(ctx, ino, inode,
1932 check_blocks(ctx, &pctx, block_buf, NULL);
1933 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1937 if (!inode->i_links_count) {
1938 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1942 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1943 * deleted files. Oops.
1945 * Since all new ext2 implementations get this right,
1946 * we now assume that the case of non-zero
1947 * i_links_count and non-zero dtime means that we
1948 * should keep the file, not delete it.
1951 if (inode->i_dtime) {
1952 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1954 e2fsck_write_inode(ctx, ino, inode, "pass1");
1959 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1960 switch (fs->super->s_creator_os) {
1962 frag = inode->osd2.hurd2.h_i_frag;
1963 fsize = inode->osd2.hurd2.h_i_fsize;
1969 if (inode->i_faddr || frag || fsize ||
1970 (!ext2fs_has_feature_largedir(fs->super) &&
1971 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
1972 mark_inode_bad(ctx, ino);
1973 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1974 !ext2fs_has_feature_64bit(fs->super) &&
1975 inode->osd2.linux2.l_i_file_acl_high != 0)
1976 mark_inode_bad(ctx, ino);
1977 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1978 !ext2fs_has_feature_huge_file(fs->super) &&
1979 (inode->osd2.linux2.l_i_blocks_hi != 0))
1980 mark_inode_bad(ctx, ino);
1981 if (inode->i_flags & EXT2_IMAGIC_FL) {
1983 if (!ctx->inode_imagic_map)
1984 alloc_imagic_map(ctx);
1985 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1988 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1989 inode->i_flags &= ~EXT2_IMAGIC_FL;
1990 e2fsck_write_inode(ctx, ino,
1997 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
1998 check_is_really_dir(ctx, &pctx, block_buf);
2001 * ext2fs_inode_has_valid_blocks2 does not actually look
2002 * at i_block[] values, so not endian-sensitive here.
2004 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
2005 LINUX_S_ISLNK(inode->i_mode) &&
2006 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
2007 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
2008 inode->i_flags &= ~EXT4_EXTENTS_FL;
2009 e2fsck_write_inode(ctx, ino, inode, "pass1");
2013 if ((inode->i_flags & EXT4_ENCRYPT_FL) &&
2014 add_encrypted_file(ctx, &pctx) < 0)
2017 if (casefold_fs && inode->i_flags & EXT4_CASEFOLD_FL)
2018 ext2fs_mark_inode_bitmap2(ctx->inode_casefold_map, ino);
2020 if (LINUX_S_ISDIR(inode->i_mode)) {
2021 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
2022 e2fsck_add_dir_info(ctx, ino, 0);
2023 ctx->fs_directory_count++;
2024 if (inode->i_flags & EXT4_CASEFOLD_FL)
2025 add_casefolded_dir(ctx, ino);
2026 } else if (LINUX_S_ISREG (inode->i_mode)) {
2027 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
2028 ctx->fs_regular_count++;
2029 } else if (LINUX_S_ISCHR (inode->i_mode) &&
2030 e2fsck_pass1_check_device_inode(fs, inode)) {
2031 check_extents_inlinedata(ctx, &pctx);
2032 check_immutable(ctx, &pctx);
2033 check_size(ctx, &pctx);
2034 ctx->fs_chardev_count++;
2035 } else if (LINUX_S_ISBLK (inode->i_mode) &&
2036 e2fsck_pass1_check_device_inode(fs, inode)) {
2037 check_extents_inlinedata(ctx, &pctx);
2038 check_immutable(ctx, &pctx);
2039 check_size(ctx, &pctx);
2040 ctx->fs_blockdev_count++;
2041 } else if (LINUX_S_ISLNK (inode->i_mode) &&
2042 e2fsck_pass1_check_symlink(fs, ino, inode,
2044 check_immutable(ctx, &pctx);
2045 ctx->fs_symlinks_count++;
2046 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
2047 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2049 } else if (ext2fs_is_fast_symlink(inode)) {
2050 ctx->fs_fast_symlinks_count++;
2051 check_blocks(ctx, &pctx, block_buf,
2053 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2057 else if (LINUX_S_ISFIFO (inode->i_mode) &&
2058 e2fsck_pass1_check_device_inode(fs, inode)) {
2059 check_extents_inlinedata(ctx, &pctx);
2060 check_immutable(ctx, &pctx);
2061 check_size(ctx, &pctx);
2062 ctx->fs_fifo_count++;
2063 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
2064 e2fsck_pass1_check_device_inode(fs, inode)) {
2065 check_extents_inlinedata(ctx, &pctx);
2066 check_immutable(ctx, &pctx);
2067 check_size(ctx, &pctx);
2068 ctx->fs_sockets_count++;
2070 mark_inode_bad(ctx, ino);
2071 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2072 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
2073 if (inode->i_block[EXT2_IND_BLOCK])
2074 ctx->fs_ind_count++;
2075 if (inode->i_block[EXT2_DIND_BLOCK])
2076 ctx->fs_dind_count++;
2077 if (inode->i_block[EXT2_TIND_BLOCK])
2078 ctx->fs_tind_count++;
2080 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2081 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
2082 (inode->i_block[EXT2_IND_BLOCK] ||
2083 inode->i_block[EXT2_DIND_BLOCK] ||
2084 inode->i_block[EXT2_TIND_BLOCK] ||
2085 ext2fs_file_acl_block(fs, inode))) {
2086 struct process_inode_block *itp;
2088 itp = &inodes_to_process[process_inode_count];
2090 itp->ea_ibody_quota = ea_ibody_quota;
2091 if (inode_size < sizeof(struct ext2_inode_large))
2092 memcpy(&itp->inode, inode, inode_size);
2094 memcpy(&itp->inode, inode, sizeof(itp->inode));
2095 process_inode_count++;
2097 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
2099 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2101 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2104 if (process_inode_count >= ctx->process_inode_size) {
2105 process_inodes(ctx, block_buf, inodes_to_process,
2106 &process_inode_count);
2108 if (e2fsck_should_abort(ctx))
2112 process_inodes(ctx, block_buf, inodes_to_process,
2113 &process_inode_count);
2114 ext2fs_close_inode_scan(scan);
2117 reserve_block_for_root_repair(ctx);
2118 reserve_block_for_lnf_repair(ctx);
2121 * If any extended attribute blocks' reference counts need to
2122 * be adjusted, either up (ctx->refcount_extra), or down
2123 * (ctx->refcount), then fix them.
2125 if (ctx->refcount) {
2126 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
2127 ea_refcount_free(ctx->refcount);
2130 if (ctx->refcount_extra) {
2131 adjust_extattr_refcount(ctx, ctx->refcount_extra,
2133 ea_refcount_free(ctx->refcount_extra);
2134 ctx->refcount_extra = 0;
2137 if (ctx->ea_block_quota_blocks) {
2138 ea_refcount_free(ctx->ea_block_quota_blocks);
2139 ctx->ea_block_quota_blocks = 0;
2142 if (ctx->ea_block_quota_inodes) {
2143 ea_refcount_free(ctx->ea_block_quota_inodes);
2144 ctx->ea_block_quota_inodes = 0;
2147 if (ctx->invalid_bitmaps)
2148 handle_fs_bad_blocks(ctx);
2150 /* We don't need the block_ea_map any more */
2151 if (ctx->block_ea_map) {
2152 ext2fs_free_block_bitmap(ctx->block_ea_map);
2153 ctx->block_ea_map = 0;
2156 /* We don't need the encryption policy => ID map any more */
2157 destroy_encryption_policy_map(ctx);
2159 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
2160 clear_problem_context(&pctx);
2161 pctx.errcode = ext2fs_create_resize_inode(fs);
2163 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
2165 ctx->flags |= E2F_FLAG_ABORT;
2170 if (!pctx.errcode) {
2171 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
2173 ext2fs_inode_xtime_set(inode, i_mtime, ctx->now);
2174 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
2177 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
2180 if (ctx->flags & E2F_FLAG_RESTART) {
2182 * Only the master copy of the superblock and block
2183 * group descriptors are going to be written during a
2184 * restart, so set the superblock to be used to be the
2185 * master superblock.
2187 ctx->use_superblock = 0;
2191 if (ctx->large_dirs && !ext2fs_has_feature_largedir(fs->super)) {
2192 if (fix_problem(ctx, PR_2_FEATURE_LARGE_DIRS, &pctx)) {
2193 ext2fs_set_feature_largedir(fs->super);
2194 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2195 ext2fs_mark_super_dirty(fs);
2197 if (fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
2198 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
2199 ext2fs_update_dynamic_rev(fs);
2200 ext2fs_mark_super_dirty(fs);
2204 if (ctx->block_dup_map) {
2205 if (ctx->options & E2F_OPT_PREEN) {
2206 clear_problem_context(&pctx);
2207 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2209 e2fsck_pass1_dupblocks(ctx, block_buf);
2211 ctx->flags |= E2F_FLAG_ALLOC_OK;
2213 e2fsck_use_inode_shortcuts(ctx, 0);
2214 ext2fs_free_mem(&inodes_to_process);
2215 inodes_to_process = 0;
2218 ext2fs_close_inode_scan(scan);
2220 ext2fs_free_mem(&block_buf);
2222 ext2fs_free_mem(&inode);
2225 * The l+f inode may have been cleared, so zap it now and
2226 * later passes will recalculate it if necessary
2228 ctx->lost_and_found = 0;
2230 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2231 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2233 ctx->invalid_bitmaps++;
2236 static void init_ext2_max_sizes()
2242 * Init ext2_max_sizes which will be immutable and shared between
2245 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
2247 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
2248 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
2249 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
2250 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
2251 max_sizes = (max_sizes * (1UL << i));
2252 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
2258 static errcode_t e2fsck_pass1_copy_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2259 ext2fs_generic_bitmap *dest)
2263 ret = ext2fs_copy_bitmap(*src, dest);
2272 static void e2fsck_pass1_free_bitmap(ext2fs_generic_bitmap *bitmap)
2275 ext2fs_free_generic_bmap(*bitmap);
2281 static errcode_t e2fsck_pass1_merge_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2282 ext2fs_generic_bitmap *dest)
2287 if (*dest == NULL) {
2291 ret = ext2fs_merge_bitmap(*src, *dest, NULL, NULL);
2301 static errcode_t e2fsck_pass1_copy_fs(ext2_filsys dest, e2fsck_t src_context,
2306 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2307 dest->inode_map = NULL;
2308 dest->block_map = NULL;
2309 dest->badblocks = NULL;
2311 dest->dblist->fs = dest;
2312 if (src->block_map) {
2313 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2318 if (src->inode_map) {
2319 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2325 if (src->badblocks) {
2326 retval = ext2fs_badblocks_copy(src->badblocks,
2332 /* disable it for now */
2333 src_context->openfs_flags &= ~EXT2_FLAG_EXCLUSIVE;
2334 retval = ext2fs_open_channel(dest, src_context->io_options,
2335 src_context->io_manager,
2336 src_context->openfs_flags,
2337 src->io->block_size);
2341 /* Block size might not be default */
2342 io_channel_set_blksize(dest->io, src->io->block_size);
2343 ehandler_init(dest->io);
2345 assert(dest->io->magic == src->io->magic);
2346 assert(dest->io->manager == src->io->manager);
2347 assert(strcmp(dest->io->name, src->io->name) == 0);
2348 assert(dest->io->block_size == src->io->block_size);
2349 assert(dest->io->read_error == src->io->read_error);
2350 assert(dest->io->write_error == src->io->write_error);
2351 assert(dest->io->refcount == src->io->refcount);
2352 assert(dest->io->flags == src->io->flags);
2353 assert(dest->io->app_data == dest);
2354 assert(src->io->app_data == src);
2355 assert(dest->io->align == src->io->align);
2357 /* The data should be written to disk immediately */
2358 dest->io->flags |= CHANNEL_FLAGS_WRITETHROUGH;
2359 /* icache will be rebuilt if needed, so do not copy from @src */
2364 static int e2fsck_pass1_merge_fs(ext2_filsys dest, ext2_filsys src)
2366 struct ext2_inode_cache *icache = dest->icache;
2367 errcode_t retval = 0;
2369 io_channel dest_image_io;
2370 ext2fs_inode_bitmap inode_map;
2371 ext2fs_block_bitmap block_map;
2372 ext2_badblocks_list badblocks;
2377 dest_image_io = dest->image_io;
2378 inode_map = dest->inode_map;
2379 block_map = dest->block_map;
2380 badblocks = dest->badblocks;
2381 dblist = dest->dblist;
2382 flags = dest->flags;
2384 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2386 dest->image_io = dest_image_io;
2387 dest->icache = icache;
2388 dest->inode_map = inode_map;
2389 dest->block_map = block_map;
2390 dest->badblocks = badblocks;
2391 dest->dblist = dblist;
2393 dest->dblist->fs = dest;
2394 dest->flags = src->flags | flags;
2395 if (!(src->flags & EXT2_FLAG_VALID) || !(flags & EXT2_FLAG_VALID))
2396 ext2fs_unmark_valid(dest);
2399 ext2fs_free_inode_cache(src->icache);
2403 retval = e2fsck_pass1_merge_bitmap(dest, &src->inode_map,
2408 retval = e2fsck_pass1_merge_bitmap(dest, &src->block_map,
2415 retval = ext2fs_merge_dblist(src->dblist,
2420 dest->dblist = src->dblist;
2421 dest->dblist->fs = dest;
2426 if (src->badblocks) {
2427 if (dest->badblocks == NULL)
2428 retval = ext2fs_badblocks_copy(src->badblocks,
2431 retval = ext2fs_badblocks_merge(src->badblocks,
2435 io_channel_close(src->io);
2437 ext2fs_free_generic_bmap(src->inode_map);
2439 ext2fs_free_generic_bmap(src->block_map);
2441 ext2fs_badblocks_list_free(src->badblocks);
2443 ext2fs_free_dblist(src->dblist);
2448 static errcode_t e2fsck_pass1_thread_prepare(e2fsck_t global_ctx, e2fsck_t *thread_ctx,
2449 int thread_index, int num_threads)
2452 e2fsck_t thread_context;
2453 ext2_filsys thread_fs;
2454 ext2_filsys global_fs = global_ctx->fs;
2455 struct e2fsck_thread *tinfo;
2456 dgrp_t average_group;
2458 assert(global_ctx->inode_used_map == NULL);
2459 assert(global_ctx->inode_dir_map == NULL);
2460 assert(global_ctx->inode_bb_map == NULL);
2461 assert(global_ctx->inode_imagic_map == NULL);
2462 assert(global_ctx->inode_reg_map == NULL);
2463 assert(global_ctx->inodes_to_rebuild == NULL);
2465 assert(global_ctx->block_found_map == NULL);
2466 assert(global_ctx->block_dup_map == NULL);
2467 assert(global_ctx->block_ea_map == NULL);
2468 assert(global_ctx->block_metadata_map == NULL);
2469 assert(global_ctx->fs->dblist == NULL);
2471 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &thread_context);
2473 com_err(global_ctx->program_name, retval, "while allocating memory");
2476 memcpy(thread_context, global_ctx, sizeof(struct e2fsck_struct));
2477 thread_context->global_ctx = global_ctx;
2479 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &thread_fs);
2481 com_err(global_ctx->program_name, retval, "while allocating memory");
2485 io_channel_flush_cleanup(global_fs->io);
2486 retval = e2fsck_pass1_copy_fs(thread_fs, global_ctx, global_fs);
2488 com_err(global_ctx->program_name, retval, "while copying fs");
2491 thread_fs->priv_data = thread_context;
2493 thread_context->thread_info.et_thread_index = thread_index;
2494 set_up_logging(thread_context);
2497 * Distribute work to multiple threads:
2498 * Each thread work on fs->group_desc_count / nthread groups.
2500 tinfo = &thread_context->thread_info;
2501 average_group = thread_fs->group_desc_count / num_threads;
2502 if (average_group == 0)
2504 tinfo->et_group_start = average_group * thread_index;
2505 if (thread_index == num_threads - 1)
2506 tinfo->et_group_end = thread_fs->group_desc_count;
2508 tinfo->et_group_end = average_group * (thread_index + 1);
2509 tinfo->et_group_next = tinfo->et_group_start;
2510 tinfo->et_inode_number = 0;
2511 tinfo->et_log_buf[0] = '\0';
2512 tinfo->et_log_length = 0;
2513 if (thread_context->options & E2F_OPT_MULTITHREAD)
2514 log_out(thread_context, _("Scan group range [%d, %d)\n"),
2515 tinfo->et_group_start, tinfo->et_group_end);
2516 thread_context->fs = thread_fs;
2517 retval = quota_init_context(&thread_context->qctx, thread_fs, 0);
2519 com_err(global_ctx->program_name, retval,
2520 "while init quota context");
2523 *thread_ctx = thread_context;
2526 ext2fs_free_mem(&thread_fs);
2528 ext2fs_free_mem(&thread_context);
2532 static void e2fsck_pass1_merge_dir_info(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2534 if (thread_ctx->dir_info == NULL)
2537 if (global_ctx->dir_info == NULL) {
2538 global_ctx->dir_info = thread_ctx->dir_info;
2539 thread_ctx->dir_info = NULL;
2543 e2fsck_merge_dir_info(global_ctx, thread_ctx->dir_info,
2544 global_ctx->dir_info);
2547 static void e2fsck_pass1_merge_dx_dir(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2549 if (thread_ctx->dx_dir_info == NULL)
2552 if (global_ctx->dx_dir_info == NULL) {
2553 global_ctx->dx_dir_info = thread_ctx->dx_dir_info;
2554 global_ctx->dx_dir_info_size = thread_ctx->dx_dir_info_size;
2555 global_ctx->dx_dir_info_count = thread_ctx->dx_dir_info_count;
2556 thread_ctx->dx_dir_info = NULL;
2560 e2fsck_merge_dx_dir(global_ctx, thread_ctx);
2563 static inline errcode_t
2564 e2fsck_pass1_merge_icount(ext2_icount_t *dest_icount,
2565 ext2_icount_t *src_icount)
2568 if (*dest_icount == NULL) {
2569 *dest_icount = *src_icount;
2574 ret = ext2fs_icount_merge(*src_icount,
2584 static errcode_t e2fsck_pass1_merge_icounts(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2588 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_count,
2589 &thread_ctx->inode_count);
2592 ret = e2fsck_pass1_merge_icount(&global_ctx->inode_link_info,
2593 &thread_ctx->inode_link_info);
2598 static errcode_t e2fsck_pass1_merge_dirs_to_hash(e2fsck_t global_ctx,
2599 e2fsck_t thread_ctx)
2601 errcode_t retval = 0;
2603 if (!thread_ctx->dirs_to_hash)
2606 if (!global_ctx->dirs_to_hash)
2607 retval = ext2fs_badblocks_copy(thread_ctx->dirs_to_hash,
2608 &global_ctx->dirs_to_hash);
2610 retval = ext2fs_badblocks_merge(thread_ctx->dirs_to_hash,
2611 global_ctx->dirs_to_hash);
2616 static int e2fsck_pass1_thread_join_one(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2619 int flags = global_ctx->flags;
2620 ext2_filsys thread_fs = thread_ctx->fs;
2621 ext2_filsys global_fs = global_ctx->fs;
2622 FILE *global_logf = global_ctx->logf;
2623 FILE *global_problem_logf = global_ctx->problem_logf;
2624 ext2fs_inode_bitmap inode_bad_map = global_ctx->inode_bad_map;
2625 struct dir_info_db *dir_info = global_ctx->dir_info;
2626 struct dx_dir_info *dx_dir_info = global_ctx->dx_dir_info;
2627 ext2fs_inode_bitmap inode_used_map = global_ctx->inode_used_map;
2628 ext2fs_inode_bitmap inode_dir_map = global_ctx->inode_dir_map;
2629 ext2fs_inode_bitmap inode_bb_map = global_ctx->inode_bb_map;
2630 ext2fs_inode_bitmap inode_imagic_map = global_ctx->inode_imagic_map;
2631 ext2fs_inode_bitmap inode_reg_map = global_ctx->inode_reg_map;
2632 ext2fs_block_bitmap block_found_map = global_ctx->block_found_map;
2633 ext2fs_block_bitmap block_dup_map = global_ctx->block_dup_map;
2634 ext2fs_block_bitmap block_ea_map = global_ctx->block_ea_map;
2635 ext2fs_block_bitmap block_metadata_map = global_ctx->block_metadata_map;
2636 ext2fs_block_bitmap inodes_to_rebuild = global_ctx->inodes_to_rebuild;
2637 ext2_icount_t inode_count = global_ctx->inode_count;
2638 ext2_icount_t inode_link_info = global_ctx->inode_link_info;
2639 __u32 fs_directory_count = global_ctx->fs_directory_count;
2640 __u32 fs_regular_count = global_ctx->fs_regular_count;
2641 __u32 fs_blockdev_count = global_ctx->fs_blockdev_count;
2642 __u32 fs_chardev_count = global_ctx->fs_chardev_count;
2643 __u32 fs_links_count = global_ctx->fs_links_count;
2644 __u32 fs_symlinks_count = global_ctx->fs_symlinks_count;
2645 __u32 fs_fast_symlinks_count = global_ctx->fs_fast_symlinks_count;
2646 __u32 fs_fifo_count = global_ctx->fs_fifo_count;
2647 __u32 fs_total_count = global_ctx->fs_total_count;
2648 __u32 fs_badblocks_count = global_ctx->fs_badblocks_count;
2649 __u32 fs_sockets_count = global_ctx->fs_sockets_count;
2650 __u32 fs_ind_count = global_ctx->fs_ind_count;
2651 __u32 fs_dind_count = global_ctx->fs_dind_count;
2652 __u32 fs_tind_count = global_ctx->fs_tind_count;
2653 __u32 fs_fragmented = global_ctx->fs_fragmented;
2654 __u32 fs_fragmented_dir = global_ctx->fs_fragmented_dir;
2655 __u32 large_files = global_ctx->large_files;
2656 ext2_ino_t dx_dir_info_size = global_ctx->dx_dir_info_size;
2657 ext2_ino_t dx_dir_info_count = global_ctx->dx_dir_info_count;
2658 ext2_u32_list dirs_to_hash = global_ctx->dirs_to_hash;
2659 quota_ctx_t qctx = global_ctx->qctx;
2661 #ifdef HAVE_SETJMP_H
2664 memcpy(old_jmp, global_ctx->abort_loc, sizeof(jmp_buf));
2666 memcpy(global_ctx, thread_ctx, sizeof(struct e2fsck_struct));
2667 #ifdef HAVE_SETJMP_H
2668 memcpy(global_ctx->abort_loc, old_jmp, sizeof(jmp_buf));
2671 global_ctx->inode_used_map = inode_used_map;
2672 global_ctx->inode_bad_map = inode_bad_map;
2673 global_ctx->inode_dir_map = inode_dir_map;
2674 global_ctx->inode_bb_map = inode_bb_map;
2675 global_ctx->inode_imagic_map = inode_imagic_map;
2676 global_ctx->inodes_to_rebuild = inodes_to_rebuild;
2677 global_ctx->inode_reg_map = inode_reg_map;
2678 global_ctx->block_found_map = block_found_map;
2679 global_ctx->block_dup_map = block_dup_map;
2680 global_ctx->block_ea_map = block_ea_map;
2681 global_ctx->block_metadata_map = block_metadata_map;
2682 global_ctx->dir_info = dir_info;
2683 e2fsck_pass1_merge_dir_info(global_ctx, thread_ctx);
2684 global_ctx->dx_dir_info = dx_dir_info;
2685 global_ctx->dx_dir_info_count = dx_dir_info_count;
2686 global_ctx->dx_dir_info_size = dx_dir_info_size;
2687 e2fsck_pass1_merge_dx_dir(global_ctx, thread_ctx);
2688 global_ctx->inode_count = inode_count;
2689 global_ctx->inode_link_info = inode_link_info;
2690 global_ctx->fs_directory_count += fs_directory_count;
2691 global_ctx->fs_regular_count += fs_regular_count;
2692 global_ctx->fs_blockdev_count += fs_blockdev_count;
2693 global_ctx->fs_chardev_count += fs_chardev_count;
2694 global_ctx->fs_links_count += fs_links_count;
2695 global_ctx->fs_symlinks_count += fs_symlinks_count;
2696 global_ctx->fs_fast_symlinks_count += fs_fast_symlinks_count;
2697 global_ctx->fs_fifo_count += fs_fifo_count;
2698 global_ctx->fs_total_count += fs_total_count;
2699 global_ctx->fs_badblocks_count += fs_badblocks_count;
2700 global_ctx->fs_sockets_count += fs_sockets_count;
2701 global_ctx->fs_ind_count += fs_ind_count;
2702 global_ctx->fs_dind_count += fs_dind_count;
2703 global_ctx->fs_tind_count += fs_tind_count;
2704 global_ctx->fs_fragmented += fs_fragmented;
2705 global_ctx->fs_fragmented_dir += fs_fragmented_dir;
2706 global_ctx->large_files += large_files;
2708 global_ctx->flags |= flags;
2710 retval = e2fsck_pass1_merge_fs(global_fs, thread_fs);
2712 com_err(global_ctx->program_name, 0, _("while merging fs\n"));
2715 global_fs->priv_data = global_ctx;
2716 global_ctx->fs = global_fs;
2717 global_ctx->logf = global_logf;
2718 global_ctx->problem_logf = global_problem_logf;
2719 global_ctx->global_ctx = NULL;
2720 retval = e2fsck_pass1_merge_icounts(global_ctx, thread_ctx);
2722 com_err(global_ctx->program_name, 0,
2723 _("while merging icounts\n"));
2727 global_ctx->dirs_to_hash = dirs_to_hash;
2728 retval = e2fsck_pass1_merge_dirs_to_hash(global_ctx, thread_ctx);
2730 com_err(global_ctx->program_name, 0,
2731 _("while merging dirs to hash\n"));
2735 global_ctx->qctx = qctx;
2736 retval = quota_merge_and_update_usage(global_ctx->qctx,
2741 retval = e2fsck_pass1_merge_bitmap(global_fs,
2742 &thread_ctx->inode_used_map,
2743 &global_ctx->inode_used_map);
2747 retval = e2fsck_pass1_merge_bitmap(global_fs,
2748 &thread_ctx->inode_bad_map,
2749 &global_ctx->inode_bad_map);
2752 retval = e2fsck_pass1_merge_bitmap(global_fs,
2753 &thread_ctx->inode_dir_map,
2754 &global_ctx->inode_dir_map);
2757 retval = e2fsck_pass1_merge_bitmap(global_fs,
2758 &thread_ctx->inode_bb_map,
2759 &global_ctx->inode_bb_map);
2762 retval = e2fsck_pass1_merge_bitmap(global_fs,
2763 &thread_ctx->inode_imagic_map,
2764 &global_ctx->inode_imagic_map);
2767 retval = e2fsck_pass1_merge_bitmap(global_fs,
2768 &thread_ctx->inode_reg_map,
2769 &global_ctx->inode_reg_map);
2772 retval = e2fsck_pass1_merge_bitmap(global_fs,
2773 &thread_ctx->inodes_to_rebuild,
2774 &global_ctx->inodes_to_rebuild);
2777 retval = e2fsck_pass1_merge_bitmap(global_fs,
2778 &thread_ctx->block_found_map,
2779 &global_ctx->block_found_map);
2782 retval = e2fsck_pass1_merge_bitmap(global_fs,
2783 &thread_ctx->block_dup_map,
2784 &global_ctx->block_dup_map);
2787 retval = e2fsck_pass1_merge_bitmap(global_fs,
2788 &thread_ctx->block_ea_map,
2789 &global_ctx->block_ea_map);
2792 retval = e2fsck_pass1_merge_bitmap(global_fs,
2793 &thread_ctx->block_metadata_map,
2794 &global_ctx->block_metadata_map);
2801 static int e2fsck_pass1_thread_join(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2805 retval = e2fsck_pass1_thread_join_one(global_ctx, thread_ctx);
2806 ext2fs_free_mem(&thread_ctx->fs);
2807 if (thread_ctx->logf)
2808 fclose(thread_ctx->logf);
2809 if (thread_ctx->problem_logf) {
2810 fputs("</problem_log>\n", thread_ctx->problem_logf);
2811 fclose(thread_ctx->problem_logf);
2813 e2fsck_pass1_free_bitmap(&thread_ctx->inode_used_map);
2814 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bad_map);
2815 e2fsck_pass1_free_bitmap(&thread_ctx->inode_dir_map);
2816 e2fsck_pass1_free_bitmap(&thread_ctx->inode_bb_map);
2817 e2fsck_pass1_free_bitmap(&thread_ctx->inode_imagic_map);
2818 e2fsck_pass1_free_bitmap(&thread_ctx->inode_reg_map);
2819 e2fsck_pass1_free_bitmap(&thread_ctx->inodes_to_rebuild);
2820 e2fsck_pass1_free_bitmap(&thread_ctx->block_found_map);
2821 e2fsck_pass1_free_bitmap(&thread_ctx->block_dup_map);
2822 e2fsck_pass1_free_bitmap(&thread_ctx->block_ea_map);
2823 e2fsck_pass1_free_bitmap(&thread_ctx->block_metadata_map);
2824 e2fsck_free_dir_info(thread_ctx);
2825 ext2fs_free_icount(thread_ctx->inode_count);
2826 ext2fs_free_icount(thread_ctx->inode_link_info);
2827 if (thread_ctx->dirs_to_hash)
2828 ext2fs_badblocks_list_free(thread_ctx->dirs_to_hash);
2829 quota_release_context(&thread_ctx->qctx);
2830 ext2fs_free_mem(&thread_ctx);
2835 static int e2fsck_pass1_threads_join(struct e2fsck_thread_info *infos,
2836 int num_threads, e2fsck_t global_ctx)
2841 struct e2fsck_thread_info *pinfo;
2843 for (i = 0; i < num_threads; i++) {
2846 if (!pinfo->eti_started)
2849 rc = pthread_join(pinfo->eti_thread_id, NULL);
2851 com_err(global_ctx->program_name, rc,
2852 _("while joining thread\n"));
2856 rc = e2fsck_pass1_thread_join(global_ctx, infos[i].eti_thread_ctx);
2858 com_err(global_ctx->program_name, rc,
2859 _("while joining pass1 thread\n"));
2869 static void *e2fsck_pass1_thread(void *arg)
2871 struct e2fsck_thread_info *info = arg;
2872 e2fsck_t thread_ctx = info->eti_thread_ctx;
2873 #ifdef DEBUG_THREADS
2874 struct e2fsck_thread_debug *thread_debug = info->eti_debug;
2877 #ifdef DEBUG_THREADS
2878 pthread_mutex_lock(&thread_debug->etd_mutex);
2879 while (info->eti_thread_index > thread_debug->etd_finished_threads) {
2880 pthread_cond_wait(&thread_debug->etd_cond,
2881 &thread_debug->etd_mutex);
2883 pthread_mutex_unlock(&thread_debug->etd_mutex);
2886 #ifdef HAVE_SETJMP_H
2888 * When fatal_error() happens, jump to here. The thread
2889 * context's flags will be saved, but its abort_loc will
2890 * be overwritten by original jump buffer for the later
2893 if (setjmp(thread_ctx->abort_loc)) {
2894 thread_ctx->flags &= ~E2F_FLAG_SETJMP_OK;
2897 thread_ctx->flags |= E2F_FLAG_SETJMP_OK;
2900 e2fsck_pass1_run(thread_ctx);
2903 if (thread_ctx->options & E2F_OPT_MULTITHREAD)
2905 _("Scanned group range [%lu, %lu), inodes %lu\n"),
2906 thread_ctx->thread_info.et_group_start,
2907 thread_ctx->thread_info.et_group_end,
2908 thread_ctx->thread_info.et_inode_number);
2910 #ifdef DEBUG_THREADS
2911 pthread_mutex_lock(&thread_debug->etd_mutex);
2912 thread_debug->etd_finished_threads++;
2913 pthread_cond_broadcast(&thread_debug->etd_cond);
2914 pthread_mutex_unlock(&thread_debug->etd_mutex);
2920 static int e2fsck_pass1_threads_start(struct e2fsck_thread_info **pinfo,
2921 int num_threads, e2fsck_t global_ctx)
2923 struct e2fsck_thread_info *infos;
2924 pthread_attr_t attr;
2927 struct e2fsck_thread_info *tmp_pinfo;
2929 e2fsck_t thread_ctx;
2930 #ifdef DEBUG_THREADS
2931 struct e2fsck_thread_debug thread_debug =
2932 {PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0};
2934 thread_debug.etd_finished_threads = 0;
2937 retval = pthread_attr_init(&attr);
2939 com_err(global_ctx->program_name, retval,
2940 _("while setting pthread attribute\n"));
2944 infos = calloc(num_threads, sizeof(struct e2fsck_thread_info));
2945 if (infos == NULL) {
2947 com_err(global_ctx->program_name, retval,
2948 _("while allocating memory for threads\n"));
2949 pthread_attr_destroy(&attr);
2953 for (i = 0; i < num_threads; i++) {
2954 tmp_pinfo = &infos[i];
2955 tmp_pinfo->eti_thread_index = i;
2956 #ifdef DEBUG_THREADS
2957 tmp_pinfo->eti_debug = &thread_debug;
2959 retval = e2fsck_pass1_thread_prepare(global_ctx, &thread_ctx,
2962 com_err(global_ctx->program_name, retval,
2963 _("while preparing pass1 thread\n"));
2966 tmp_pinfo->eti_thread_ctx = thread_ctx;
2968 retval = pthread_create(&tmp_pinfo->eti_thread_id, &attr,
2969 &e2fsck_pass1_thread, tmp_pinfo);
2971 com_err(global_ctx->program_name, retval,
2972 _("while creating thread\n"));
2973 e2fsck_pass1_thread_join(global_ctx, thread_ctx);
2977 tmp_pinfo->eti_started = 1;
2980 /* destroy the thread attribute object, since it is no longer needed */
2981 ret = pthread_attr_destroy(&attr);
2983 com_err(global_ctx->program_name, ret,
2984 _("while destroying thread attribute\n"));
2990 e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2997 static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
2999 struct e2fsck_thread_info *infos = NULL;
3000 int num_threads = 1;
3003 retval = e2fsck_pass1_threads_start(&infos, num_threads, global_ctx);
3005 com_err(global_ctx->program_name, retval,
3006 _("while starting pass1 threads\n"));
3010 retval = e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
3012 com_err(global_ctx->program_name, retval,
3013 _("while joining pass1 threads\n"));
3018 global_ctx->flags |= E2F_FLAG_ABORT;
3023 /* TODO: tdb needs to be handled properly for multiple threads*/
3024 static int multiple_threads_supported(e2fsck_t ctx)
3027 unsigned int threshold;
3028 ext2_ino_t num_dirs;
3033 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
3035 profile_get_uint(ctx->profile, "scratch_files",
3036 "numdirs_threshold", 0, 0, &threshold);
3037 profile_get_boolean(ctx->profile, "scratch_files",
3038 "icount", 0, 1, &enable);
3040 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
3042 num_dirs = 1024; /* Guess */
3044 /* tdb is unsupported now */
3045 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
3046 (!threshold || num_dirs > threshold))
3052 void e2fsck_pass1(e2fsck_t ctx)
3055 init_ext2_max_sizes();
3057 if (multiple_threads_supported(ctx)) {
3058 e2fsck_pass1_multithread(ctx);
3061 fprintf(stderr, "Fall through single thread for pass1 "
3062 "because tdb could not handle properly\n");
3064 e2fsck_pass1_run(ctx);
3067 #undef FINISH_INODE_LOOP
3070 * When the inode_scan routines call this callback at the end of the
3071 * glock group, call process_inodes.
3073 static errcode_t scan_callback(ext2_filsys fs,
3074 ext2_inode_scan scan EXT2FS_ATTR((unused)),
3075 dgrp_t group, void * priv_data)
3077 struct scan_callback_struct *scan_struct;
3079 struct e2fsck_thread *tinfo;
3081 scan_struct = (struct scan_callback_struct *) priv_data;
3082 ctx = scan_struct->ctx;
3084 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf,
3085 scan_struct->inodes_to_process,
3086 scan_struct->process_inode_count);
3089 if ((ctx->progress)(ctx, 1, group+1,
3090 ctx->fs->group_desc_count))
3091 return EXT2_ET_CANCEL_REQUESTED;
3094 if (ctx->global_ctx) {
3095 tinfo = &ctx->thread_info;
3096 tinfo->et_group_next++;
3097 if (ctx->options & E2F_OPT_DEBUG &&
3098 ctx->options & E2F_OPT_MULTITHREAD)
3099 log_out(ctx, _("group %d finished\n"),
3100 tinfo->et_group_next);
3101 if (tinfo->et_group_next >= tinfo->et_group_end)
3102 return EXT2_ET_SCAN_FINISHED;
3110 * Process the inodes in the "inodes to process" list.
3112 static void process_inodes(e2fsck_t ctx, char *block_buf,
3113 struct process_inode_block *inodes_to_process,
3114 int *process_inode_count)
3117 struct ext2_inode *old_stashed_inode;
3118 ext2_ino_t old_stashed_ino;
3119 const char *old_operation;
3121 struct problem_context pctx;
3124 printf("begin process_inodes: ");
3126 if (*process_inode_count == 0)
3128 old_operation = ehandler_operation(0);
3129 old_stashed_inode = ctx->stashed_inode;
3130 old_stashed_ino = ctx->stashed_ino;
3131 qsort(inodes_to_process, *process_inode_count,
3132 sizeof(struct process_inode_block), process_inode_cmp);
3133 clear_problem_context(&pctx);
3134 for (i=0; i < *process_inode_count; i++) {
3135 pctx.inode = ctx->stashed_inode =
3136 (struct ext2_inode *) &inodes_to_process[i].inode;
3137 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
3140 printf("%u ", pctx.ino);
3142 sprintf(buf, _("reading indirect blocks of inode %u"),
3144 ehandler_operation(buf);
3145 check_blocks(ctx, &pctx, block_buf,
3146 &inodes_to_process[i].ea_ibody_quota);
3147 if (e2fsck_should_abort(ctx))
3150 ctx->stashed_inode = old_stashed_inode;
3151 ctx->stashed_ino = old_stashed_ino;
3152 *process_inode_count = 0;
3154 printf("end process inodes\n");
3156 ehandler_operation(old_operation);
3159 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
3161 const struct process_inode_block *ib_a =
3162 (const struct process_inode_block *) a;
3163 const struct process_inode_block *ib_b =
3164 (const struct process_inode_block *) b;
3167 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
3168 ib_b->inode.i_block[EXT2_IND_BLOCK]);
3171 * We only call process_inodes() for non-extent
3172 * inodes, so it's OK to pass NULL to
3173 * ext2fs_file_acl_block() here.
3175 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
3176 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
3178 ret = ib_a->ino - ib_b->ino;
3183 * Mark an inode as being bad in some what
3185 static void mark_inode_bad(e2fsck_t ctx, ext2_ino_t ino)
3187 struct problem_context pctx;
3189 if (!ctx->inode_bad_map) {
3190 clear_problem_context(&pctx);
3192 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3193 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
3194 "inode_bad_map", &ctx->inode_bad_map);
3197 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3198 /* Should never get here */
3199 ctx->flags |= E2F_FLAG_ABORT;
3203 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
3206 static void add_casefolded_dir(e2fsck_t ctx, ext2_ino_t ino)
3208 struct problem_context pctx;
3210 if (!ctx->casefolded_dirs) {
3211 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
3215 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
3216 if (pctx.errcode == 0)
3219 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
3220 /* Should never get here */
3221 ctx->flags |= E2F_FLAG_ABORT;
3225 * This procedure will allocate the inode "bb" (badblock) map table
3227 static void alloc_bb_map(e2fsck_t ctx)
3229 struct problem_context pctx;
3231 clear_problem_context(&pctx);
3232 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3233 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
3234 "inode_bb_map", &ctx->inode_bb_map);
3237 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3238 /* Should never get here */
3239 ctx->flags |= E2F_FLAG_ABORT;
3245 * This procedure will allocate the inode imagic table
3247 static void alloc_imagic_map(e2fsck_t ctx)
3249 struct problem_context pctx;
3251 clear_problem_context(&pctx);
3252 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
3253 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
3254 "inode_imagic_map", &ctx->inode_imagic_map);
3257 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
3258 /* Should never get here */
3259 ctx->flags |= E2F_FLAG_ABORT;
3265 * Marks a block as in use, setting the dup_map if it's been set
3266 * already. Called by process_block and process_bad_block.
3268 * WARNING: Assumes checks have already been done to make sure block
3269 * is valid. This is true in both process_block and process_bad_block.
3271 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
3273 struct problem_context pctx;
3275 clear_problem_context(&pctx);
3277 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
3278 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
3279 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
3282 if (!ctx->block_dup_map) {
3283 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
3284 _("multiply claimed block map"),
3285 EXT2FS_BMAP64_RBTREE, "block_dup_map",
3286 &ctx->block_dup_map);
3289 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
3291 /* Should never get here */
3292 ctx->flags |= E2F_FLAG_ABORT;
3296 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
3298 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
3303 * When cluster size is greater than one block, it is caller's responsibility
3304 * to make sure block parameter starts at a cluster boundary.
3306 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
3309 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
3310 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
3314 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
3315 mark_block_used(ctx, block + i);
3320 * Adjust the extended attribute block's reference counts at the end
3321 * of pass 1, either by subtracting out references for EA blocks that
3322 * are still referenced in ctx->refcount, or by adding references for
3323 * EA blocks that had extra references as accounted for in
3324 * ctx->refcount_extra.
3326 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
3327 char *block_buf, int adjust_sign)
3329 struct ext2_ext_attr_header *header;
3330 struct problem_context pctx;
3331 ext2_filsys fs = ctx->fs;
3336 clear_problem_context(&pctx);
3338 ea_refcount_intr_begin(refcount);
3340 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
3343 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
3346 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
3349 header = (struct ext2_ext_attr_header *) block_buf;
3350 pctx.blkcount = header->h_refcount;
3351 should_be = header->h_refcount + adjust_sign * (int)count;
3352 pctx.num = should_be;
3353 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
3354 header->h_refcount = should_be;
3355 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
3359 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
3368 * Handle processing the extended attribute blocks
3370 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
3371 char *block_buf, struct ea_quota *ea_block_quota)
3373 ext2_filsys fs = ctx->fs;
3374 ext2_ino_t ino = pctx->ino;
3375 struct ext2_inode *inode = pctx->inode;
3378 struct ext2_ext_attr_header *header;
3379 struct ext2_ext_attr_entry *first, *entry;
3380 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
3381 __u64 quota_inodes = 0;
3382 region_t region = 0;
3383 int failed_csum = 0;
3385 ea_block_quota->blocks = 0;
3386 ea_block_quota->inodes = 0;
3388 blk = ext2fs_file_acl_block(fs, inode);
3393 * If the Extended attribute flag isn't set, then a non-zero
3394 * file acl means that the inode is corrupted.
3396 * Or if the extended attribute block is an invalid block,
3397 * then the inode is also corrupted.
3399 if (!ext2fs_has_feature_xattr(fs->super) ||
3400 (blk < fs->super->s_first_data_block) ||
3401 (blk >= ext2fs_blocks_count(fs->super))) {
3402 mark_inode_bad(ctx, ino);
3406 /* If ea bitmap hasn't been allocated, create it */
3407 if (!ctx->block_ea_map) {
3408 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
3409 _("ext attr block map"),
3410 EXT2FS_BMAP64_RBTREE, "block_ea_map",
3411 &ctx->block_ea_map);
3412 if (pctx->errcode) {
3414 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
3415 ctx->flags |= E2F_FLAG_ABORT;
3420 /* Create the EA refcount structure if necessary */
3421 if (!ctx->refcount) {
3422 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
3423 if (pctx->errcode) {
3425 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3426 ctx->flags |= E2F_FLAG_ABORT;
3432 /* Debugging text */
3433 printf("Inode %u has EA block %u\n", ino, blk);
3436 /* Have we seen this EA block before? */
3437 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
3438 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
3439 ea_block_quota->inodes = 0;
3441 if (ctx->ea_block_quota_blocks) {
3442 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
3445 ea_block_quota->blocks = quota_blocks;
3448 if (ctx->ea_block_quota_inodes)
3449 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
3450 &ea_block_quota->inodes);
3452 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
3454 /* Ooops, this EA was referenced more than it stated */
3455 if (!ctx->refcount_extra) {
3456 pctx->errcode = ea_refcount_create(0,
3457 &ctx->refcount_extra);
3458 if (pctx->errcode) {
3460 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3461 ctx->flags |= E2F_FLAG_ABORT;
3465 ea_refcount_increment(ctx->refcount_extra, blk, 0);
3470 * OK, we haven't seen this EA block yet. So we need to
3474 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
3475 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
3478 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
3481 if (pctx->errcode &&
3482 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
3486 header = (struct ext2_ext_attr_header *) block_buf;
3487 pctx->blk = ext2fs_file_acl_block(fs, inode);
3488 if (((ctx->ext_attr_ver == 1) &&
3489 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
3490 ((ctx->ext_attr_ver == 2) &&
3491 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
3492 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
3496 if (header->h_blocks != 1) {
3497 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
3501 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
3504 region = region_create(0, fs->blocksize);
3506 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
3507 ctx->flags |= E2F_FLAG_ABORT;
3510 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
3511 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3515 first = (struct ext2_ext_attr_entry *)(header+1);
3516 end = block_buf + fs->blocksize;
3518 while ((char *)entry < end && *(__u32 *)entry) {
3521 if (region_allocate(region, (char *)entry - (char *)header,
3522 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
3523 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3527 if ((ctx->ext_attr_ver == 1 &&
3528 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
3529 (ctx->ext_attr_ver == 2 &&
3530 entry->e_name_index == 0)) {
3531 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
3535 if (entry->e_value_inum == 0) {
3536 if (entry->e_value_size > EXT2_XATTR_SIZE_MAX ||
3537 (entry->e_value_offs + entry->e_value_size >
3539 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
3543 if (entry->e_value_size &&
3544 region_allocate(region, entry->e_value_offs,
3545 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
3546 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
3551 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
3552 entry->e_value_offs);
3553 if (entry->e_hash != hash)
3554 hash = ext2fs_ext_attr_hash_entry_signed(entry,
3555 block_buf + entry->e_value_offs);
3557 if (entry->e_hash != hash) {
3558 pctx->num = entry->e_hash;
3559 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
3561 entry->e_hash = hash;
3565 blk64_t entry_quota_blocks;
3567 if (!ext2fs_has_feature_ea_inode(fs->super) &&
3568 fix_problem(ctx, PR_1_EA_INODE_FEATURE, pctx)) {
3569 ext2fs_set_feature_ea_inode(fs->super);
3570 ext2fs_mark_super_dirty(fs);
3573 problem = check_large_ea_inode(ctx, entry, pctx,
3574 &entry_quota_blocks);
3575 if (problem && fix_problem(ctx, problem, pctx))
3578 quota_blocks += entry_quota_blocks;
3582 entry = EXT2_EXT_ATTR_NEXT(entry);
3584 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
3585 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3588 region_free(region);
3591 * We only get here if there was no other errors that were fixed.
3592 * If there was a checksum fail, ask to correct it.
3595 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
3596 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
3602 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
3603 if (!ctx->ea_block_quota_blocks) {
3604 pctx->errcode = ea_refcount_create(0,
3605 &ctx->ea_block_quota_blocks);
3606 if (pctx->errcode) {
3611 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
3616 if (!ctx->ea_block_quota_inodes) {
3617 pctx->errcode = ea_refcount_create(0,
3618 &ctx->ea_block_quota_inodes);
3619 if (pctx->errcode) {
3622 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3623 ctx->flags |= E2F_FLAG_ABORT;
3628 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
3631 ea_block_quota->blocks = quota_blocks;
3632 ea_block_quota->inodes = quota_inodes;
3634 inc_ea_inode_refs(ctx, pctx, first, end);
3635 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
3636 mark_block_used(ctx, blk);
3637 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
3642 region_free(region);
3643 ext2fs_file_acl_block_set(fs, inode, 0);
3644 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
3648 /* Returns 1 if bad htree, 0 if OK */
3649 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
3650 ext2_ino_t ino, struct ext2_inode *inode,
3653 struct ext2_dx_root_info *root;
3654 ext2_filsys fs = ctx->fs;
3658 if ((!LINUX_S_ISDIR(inode->i_mode) &&
3659 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
3660 (!ext2fs_has_feature_dir_index(fs->super) &&
3661 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
3664 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
3666 if ((pctx->errcode) ||
3668 (blk < fs->super->s_first_data_block) ||
3669 (blk >= ext2fs_blocks_count(fs->super))) {
3670 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3676 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
3677 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3680 /* XXX should check that beginning matches a directory */
3681 root = (struct ext2_dx_root_info *) (block_buf + 24);
3683 if ((root->reserved_zero || root->info_length < 8) &&
3684 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3687 pctx->num = root->hash_version;
3688 if ((root->hash_version != EXT2_HASH_LEGACY) &&
3689 (root->hash_version != EXT2_HASH_HALF_MD4) &&
3690 (root->hash_version != EXT2_HASH_TEA) &&
3691 (root->hash_version != EXT2_HASH_SIPHASH) &&
3692 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
3695 if (ext4_hash_in_dirent(inode)) {
3696 if (root->hash_version != EXT2_HASH_SIPHASH &&
3697 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
3700 if (root->hash_version == EXT2_HASH_SIPHASH &&
3701 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
3705 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
3706 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
3709 pctx->num = root->indirect_levels;
3710 /* if htree level is clearly too high, consider it to be broken */
3711 if (root->indirect_levels > EXT4_HTREE_LEVEL &&
3712 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3715 /* if level is only maybe too high, LARGE_DIR feature could be unset */
3716 if (root->indirect_levels > ext2_dir_htree_level(fs) &&
3717 !ext2fs_has_feature_largedir(fs->super)) {
3718 int blockbits = EXT2_BLOCK_SIZE_BITS(fs->super) + 10;
3719 unsigned idx_pb = 1 << (blockbits - 3);
3721 /* compare inode size/blocks vs. max-sized 2-level htree */
3722 if (EXT2_I_SIZE(pctx->inode) <
3723 (idx_pb - 1) * (idx_pb - 2) << blockbits &&
3724 pctx->inode->i_blocks <
3725 (idx_pb - 1) * (idx_pb - 2) << (blockbits - 9) &&
3726 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3730 if (root->indirect_levels > EXT4_HTREE_LEVEL_COMPAT ||
3731 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3737 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
3738 struct ext2_inode *inode, int restart_flag,
3742 inode->i_links_count = 0;
3743 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
3744 ext2fs_set_dtime(ctx->fs, inode);
3747 * If a special inode has such rotten block mappings that we
3748 * want to clear the whole inode, be sure to actually zap
3749 * the block maps because i_links_count isn't checked for
3750 * special inodes, and we'll end up right back here the next
3753 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
3754 memset(inode->i_block, 0, sizeof(inode->i_block));
3756 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
3757 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
3758 if (ctx->inode_reg_map)
3759 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
3760 if (ctx->inode_bad_map)
3761 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
3764 * If the inode was partially accounted for before processing
3765 * was aborted, we need to restart the pass 1 scan.
3767 ctx->flags |= restart_flag;
3769 if (ino == EXT2_BAD_INO)
3770 memset(inode, 0, sizeof(struct ext2_inode));
3772 e2fsck_write_inode(ctx, ino, inode, source);
3776 * Use the multiple-blocks reclamation code to fix alignment problems in
3777 * a bigalloc filesystem. We want a logical cluster to map to *only* one
3778 * physical cluster, and we want the block offsets within that cluster to
3781 static int has_unaligned_cluster_map(e2fsck_t ctx,
3782 blk64_t last_pblk, blk64_t last_lblk,
3783 blk64_t pblk, blk64_t lblk)
3785 blk64_t cluster_mask;
3787 if (!ctx->fs->cluster_ratio_bits)
3789 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
3792 * If the block in the logical cluster doesn't align with the block in
3793 * the physical cluster...
3795 if ((lblk & cluster_mask) != (pblk & cluster_mask))
3799 * If we cross a physical cluster boundary within a logical cluster...
3801 if (last_pblk && (lblk & cluster_mask) != 0 &&
3802 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
3803 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
3809 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
3810 struct process_block_struct *pb,
3811 blk64_t start_block, blk64_t end_block,
3813 ext2_extent_handle_t ehandle,
3816 struct ext2fs_extent extent;
3817 blk64_t blk, last_lblk;
3819 int is_dir, is_leaf;
3821 struct ext2_extent_info info;
3822 int failed_csum = 0;
3824 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
3827 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
3830 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
3831 !pb->eti.force_rebuild &&
3832 info.curr_level < MAX_EXTENT_DEPTH_COUNT) {
3833 struct extent_tree_level *etl;
3835 etl = pb->eti.ext_info + info.curr_level;
3836 etl->num_extents += info.num_entries;
3837 etl->max_extents += info.max_entries;
3839 * Implementation wart: Splitting extent blocks when appending
3840 * will leave the old block with one free entry. Therefore
3841 * unless the node is totally full, pretend that a non-root
3842 * extent block can hold one fewer entry than it actually does,
3843 * so that we don't repeatedly rebuild the extent tree.
3845 if (info.curr_level && info.num_entries < info.max_entries)
3849 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
3851 while ((pctx->errcode == 0 ||
3852 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
3853 info.num_entries-- > 0) {
3854 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
3855 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
3856 last_lblk = extent.e_lblk + extent.e_len - 1;
3859 pctx->blk = extent.e_pblk;
3860 pctx->blk2 = extent.e_lblk;
3861 pctx->num = extent.e_len;
3862 pctx->blkcount = extent.e_lblk + extent.e_len;
3864 if (extent.e_pblk == 0 ||
3865 extent.e_pblk < ctx->fs->super->s_first_data_block ||
3866 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
3867 problem = PR_1_EXTENT_BAD_START_BLK;
3868 else if (extent.e_lblk < start_block)
3869 problem = PR_1_OUT_OF_ORDER_EXTENTS;
3870 else if ((end_block && last_lblk > end_block) &&
3871 !(last_lblk > eof_block &&
3872 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
3873 (pctx->inode->i_flags & EXT4_VERITY_FL))))
3874 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
3875 else if (is_leaf && extent.e_len == 0)
3876 problem = PR_1_EXTENT_LENGTH_ZERO;
3878 (extent.e_pblk + extent.e_len) >
3879 ext2fs_blocks_count(ctx->fs->super))
3880 problem = PR_1_EXTENT_ENDS_BEYOND;
3881 else if (is_leaf && is_dir && !pctx->inode->i_size_high &&
3882 !ext2fs_has_feature_largedir(ctx->fs->super) &&
3883 ((extent.e_lblk + extent.e_len) >
3884 (1U << (21 - ctx->fs->super->s_log_block_size))))
3885 problem = PR_1_TOOBIG_DIR;
3887 if (is_leaf && problem == 0 && extent.e_len > 0) {
3889 printf("extent_region(ino=%u, expect=%llu, "
3890 "lblk=%llu, len=%u)\n", pb->ino,
3891 (unsigned long long) pb->next_lblock,
3892 (unsigned long long) extent.e_lblk,
3895 if (extent.e_lblk < pb->next_lblock)
3896 problem = PR_1_EXTENT_COLLISION;
3897 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
3898 pb->next_lblock = extent.e_lblk + extent.e_len;
3902 * Uninitialized blocks in a directory? Clear the flag and
3903 * we'll interpret the blocks later.
3905 if (try_repairs && is_dir && problem == 0 &&
3906 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3907 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
3908 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3909 pb->inode_modified = 1;
3910 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3916 #ifdef CONFIG_DEVELOPER_FEATURES
3917 if (try_repairs && !is_dir && problem == 0 &&
3918 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
3919 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3920 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
3921 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3922 pb->inode_modified = 1;
3923 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3930 if (try_repairs && problem) {
3932 if (fix_problem(ctx, problem, pctx)) {
3933 if (ctx->invalid_bitmaps) {
3935 * If fsck knows the bitmaps are bad,
3936 * skip to the next extent and
3937 * try to clear this extent again
3938 * after fixing the bitmaps, by
3941 pctx->errcode = ext2fs_extent_get(
3943 EXT2_EXTENT_NEXT_SIB,
3945 ctx->flags |= E2F_FLAG_RESTART_LATER;
3946 if (pctx->errcode ==
3947 EXT2_ET_NO_CURRENT_NODE) {
3953 e2fsck_read_bitmaps(ctx);
3954 pb->inode_modified = 1;
3956 ext2fs_extent_delete(ehandle, 0);
3957 if (pctx->errcode) {
3958 pctx->str = "ext2fs_extent_delete";
3961 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3962 if (pctx->errcode &&
3963 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
3964 pctx->str = "ext2fs_extent_fix_parents";
3967 pctx->errcode = ext2fs_extent_get(ehandle,
3968 EXT2_EXTENT_CURRENT,
3970 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
3981 blk64_t lblk = extent.e_lblk;
3982 int next_try_repairs = 1;
3984 blk = extent.e_pblk;
3987 * If this lower extent block collides with critical
3988 * metadata, don't try to repair the damage. Pass 1b
3989 * will reallocate the block; then we can try again.
3991 if (pb->ino != EXT2_RESIZE_INO &&
3992 extent.e_pblk < ctx->fs->super->s_blocks_count &&
3993 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3995 next_try_repairs = 0;
3998 PR_1_CRITICAL_METADATA_COLLISION,
4000 if ((ctx->options & E2F_OPT_NO) == 0)
4001 ctx->flags |= E2F_FLAG_RESTART_LATER;
4003 pctx->errcode = ext2fs_extent_get(ehandle,
4004 EXT2_EXTENT_DOWN, &extent);
4005 if (pctx->errcode &&
4006 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
4007 pctx->str = "EXT2_EXTENT_DOWN";
4008 problem = PR_1_EXTENT_HEADER_INVALID;
4009 if (!next_try_repairs)
4011 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
4012 goto report_problem;
4015 /* The next extent should match this index's logical start */
4016 if (extent.e_lblk != lblk) {
4017 struct ext2_extent_info e_info;
4019 pctx->errcode = ext2fs_extent_get_info(ehandle,
4021 if (pctx->errcode) {
4022 pctx->str = "ext2fs_extent_get_info";
4026 pctx->blk2 = extent.e_lblk;
4027 pctx->num = e_info.curr_level - 1;
4028 problem = PR_1_EXTENT_INDEX_START_INVALID;
4029 if (fix_problem(ctx, problem, pctx)) {
4030 pb->inode_modified = 1;
4032 ext2fs_extent_fix_parents(ehandle);
4033 if (pctx->errcode) {
4034 pctx->str = "ext2fs_extent_fix_parents";
4039 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
4040 last_lblk, eof_block, ehandle,
4044 pctx->errcode = ext2fs_extent_get(ehandle,
4045 EXT2_EXTENT_UP, &extent);
4046 if (pctx->errcode) {
4047 pctx->str = "EXT2_EXTENT_UP";
4050 mark_block_used(ctx, blk);
4055 if ((pb->previous_block != 0) &&
4056 (pb->previous_block+1 != extent.e_pblk)) {
4057 if (ctx->options & E2F_OPT_FRAGCHECK) {
4062 else if (pb->is_reg)
4065 printf(("%6lu(%c): expecting %6lu "
4067 "phys %6lu log %lu len %lu\n"),
4068 (unsigned long) pctx->ino, type,
4069 (unsigned long) pb->previous_block+1,
4070 (unsigned long) extent.e_pblk,
4071 (unsigned long) extent.e_lblk,
4072 (unsigned long) extent.e_len);
4077 * If we notice a gap in the logical block mappings of an
4078 * extent-mapped directory, offer to close the hole by
4079 * moving the logical block down, otherwise we'll go mad in
4080 * pass 3 allocating empty directory blocks to fill the hole.
4082 if (try_repairs && is_dir &&
4083 pb->last_block + 1 < extent.e_lblk) {
4086 new_lblk = pb->last_block + 1;
4087 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
4088 new_lblk = ((new_lblk +
4089 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
4090 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
4092 EXT2FS_CLUSTER_MASK(ctx->fs));
4093 pctx->blk = extent.e_lblk;
4094 pctx->blk2 = new_lblk;
4095 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
4096 extent.e_lblk = new_lblk;
4097 pb->inode_modified = 1;
4098 pctx->errcode = ext2fs_extent_replace(ehandle,
4100 if (pctx->errcode) {
4104 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
4106 goto failed_add_dir_block;
4107 pctx->errcode = ext2fs_extent_goto(ehandle,
4110 goto failed_add_dir_block;
4111 last_lblk = extent.e_lblk + extent.e_len - 1;
4117 while (++pb->last_db_block <
4118 (e2_blkcnt_t) extent.e_lblk) {
4119 pctx->errcode = ext2fs_add_dir_block2(
4123 if (pctx->errcode) {
4125 pctx->num = pb->last_db_block;
4126 goto failed_add_dir_block;
4130 for (i = 0; i < extent.e_len; i++) {
4131 pctx->errcode = ext2fs_add_dir_block2(
4136 if (pctx->errcode) {
4137 pctx->blk = extent.e_pblk + i;
4138 pctx->num = extent.e_lblk + i;
4139 failed_add_dir_block:
4140 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4141 /* Should never get here */
4142 ctx->flags |= E2F_FLAG_ABORT;
4146 if (extent.e_len > 0)
4147 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
4149 if (has_unaligned_cluster_map(ctx, pb->previous_block,
4153 for (i = 0; i < extent.e_len; i++) {
4154 pctx->blk = extent.e_lblk + i;
4155 pctx->blk2 = extent.e_pblk + i;
4156 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4157 mark_block_used(ctx, extent.e_pblk + i);
4158 mark_block_used(ctx, extent.e_pblk + i);
4163 * Check whether first cluster got marked in previous iteration.
4165 if (ctx->fs->cluster_ratio_bits &&
4166 pb->previous_block &&
4167 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
4168 EXT2FS_B2C(ctx->fs, pb->previous_block)))
4169 /* Set blk to the beginning of next cluster. */
4172 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
4174 /* Set blk to the beginning of current cluster. */
4175 blk = EXT2FS_C2B(ctx->fs,
4176 EXT2FS_B2C(ctx->fs, extent.e_pblk));
4178 if (blk < extent.e_pblk + extent.e_len) {
4179 mark_blocks_used(ctx, blk,
4180 extent.e_pblk + extent.e_len - blk);
4181 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
4182 EXT2FS_CLUSTER_RATIO(ctx->fs));
4183 pb->num_blocks += n;
4185 pb->last_block = extent.e_lblk + extent.e_len - 1;
4186 pb->previous_block = extent.e_pblk + extent.e_len - 1;
4187 start_block = pb->last_block = last_lblk;
4188 if (is_leaf && !is_dir &&
4189 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
4190 pb->last_init_lblock = last_lblk;
4192 pctx->errcode = ext2fs_extent_get(ehandle,
4193 EXT2_EXTENT_NEXT_SIB,
4197 /* Failed csum but passes checks? Ask to fix checksum. */
4199 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
4200 pb->inode_modified = 1;
4201 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
4206 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
4210 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
4211 struct process_block_struct *pb)
4213 struct ext2_extent_info info;
4214 struct ext2_inode *inode = pctx->inode;
4215 ext2_extent_handle_t ehandle;
4216 ext2_filsys fs = ctx->fs;
4217 ext2_ino_t ino = pctx->ino;
4220 struct ext3_extent_header *eh;
4222 /* Check for a proper extent header... */
4223 eh = (struct ext3_extent_header *) &inode->i_block[0];
4224 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
4226 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
4227 e2fsck_clear_inode(ctx, ino, inode, 0,
4228 "check_blocks_extents");
4233 /* ...since this function doesn't fail if i_block is zeroed. */
4234 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
4235 if (pctx->errcode) {
4236 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
4237 e2fsck_clear_inode(ctx, ino, inode, 0,
4238 "check_blocks_extents");
4243 retval = ext2fs_extent_get_info(ehandle, &info);
4245 int max_depth = info.max_depth;
4247 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
4248 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
4249 ctx->extent_depth_count[max_depth]++;
4252 /* Check maximum extent depth */
4253 pctx->blk = info.max_depth;
4254 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
4255 if (pctx->blk2 < pctx->blk &&
4256 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
4257 pb->eti.force_rebuild = 1;
4259 /* Can we collect extent tree level stats? */
4260 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
4261 if (pctx->blk2 > pctx->blk)
4262 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
4263 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
4264 pb->eti.ino = pb->ino;
4266 pb->next_lblock = 0;
4268 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
4269 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
4270 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
4271 if (pctx->errcode &&
4272 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
4274 inode->i_blocks = 0;
4275 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4276 "check_blocks_extents");
4279 ext2fs_extent_free(ehandle);
4281 /* Rebuild unless it's a dir and we're rehashing it */
4282 if (LINUX_S_ISDIR(inode->i_mode) &&
4283 e2fsck_dir_will_be_rehashed(ctx, ino))
4286 if (ctx->options & E2F_OPT_CONVERT_BMAP)
4287 e2fsck_rebuild_extents_later(ctx, ino);
4289 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
4293 * In fact we don't need to check blocks for an inode with inline data
4294 * because this inode doesn't have any blocks. In this function all
4295 * we need to do is add this inode into dblist when it is a directory.
4297 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
4298 struct process_block_struct *pb)
4301 size_t inline_data_size = 0;
4308 /* Process the dirents in i_block[] as the "first" block. */
4309 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
4313 /* Process the dirents in the EA as a "second" block. */
4314 flags = ctx->fs->flags;
4315 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4316 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
4318 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4319 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4320 if (pctx->errcode) {
4325 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
4328 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
4336 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4337 ctx->flags |= E2F_FLAG_ABORT;
4341 * This subroutine is called on each inode to account for all of the
4342 * blocks used by that inode.
4344 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
4345 char *block_buf, const struct ea_quota *ea_ibody_quota)
4347 ext2_filsys fs = ctx->fs;
4348 struct process_block_struct pb;
4349 ext2_ino_t ino = pctx->ino;
4350 struct ext2_inode *inode = pctx->inode;
4351 unsigned bad_size = 0;
4352 int dirty_inode = 0;
4356 struct ea_quota ea_block_quota;
4359 pb.num_blocks = EXT2FS_B2C(ctx->fs,
4360 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
4362 pb.last_init_lblock = -1;
4363 pb.last_db_block = -1;
4364 pb.num_illegal_blocks = 0;
4365 pb.suppress = 0; pb.clear = 0;
4368 pb.previous_block = 0;
4369 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
4370 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
4371 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
4375 pb.inode_modified = 0;
4376 pb.eti.force_rebuild = 0;
4380 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
4381 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
4383 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
4384 if (e2fsck_should_abort(ctx))
4386 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
4389 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
4390 check_blocks_inline_data(ctx, pctx, &pb);
4391 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
4392 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
4393 check_blocks_extents(ctx, pctx, &pb);
4397 * If we've modified the inode, write it out before
4398 * iterate() tries to use it.
4401 e2fsck_write_inode(ctx, ino, inode,
4406 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4407 pctx->errcode = ext2fs_block_iterate3(fs, ino,
4408 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
4409 block_buf, process_block, &pb);
4411 * We do not have uninitialized extents in non extent
4414 pb.last_init_lblock = pb.last_block;
4416 * If iterate() changed a block mapping, we have to
4417 * re-read the inode. If we decide to clear the
4418 * inode after clearing some stuff, we'll re-write the
4419 * bad mappings into the inode!
4421 if (pb.inode_modified)
4422 e2fsck_read_inode(ctx, ino, inode,
4424 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4425 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4427 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
4429 printf("bmap rebuild ino=%d\n", ino);
4431 if (!LINUX_S_ISDIR(inode->i_mode) ||
4432 !e2fsck_dir_will_be_rehashed(ctx, ino))
4433 e2fsck_rebuild_extents_later(ctx, ino);
4437 end_problem_latch(ctx, PR_LATCH_BLOCK);
4438 end_problem_latch(ctx, PR_LATCH_TOOBIG);
4439 if (e2fsck_should_abort(ctx))
4442 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
4444 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
4445 if (LINUX_S_ISDIR(inode->i_mode))
4446 ctx->fs_fragmented_dir++;
4448 ctx->fs_fragmented++;
4452 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4457 if (inode->i_flags & EXT2_INDEX_FL) {
4458 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
4459 inode->i_flags &= ~EXT2_INDEX_FL;
4462 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
4466 if (!pb.num_blocks && pb.is_dir &&
4467 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
4468 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
4469 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
4470 ctx->fs_directory_count--;
4475 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
4476 ino != fs->super->s_orphan_file_inum &&
4477 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
4478 !(inode->i_flags & EXT4_EA_INODE_FL)) {
4479 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
4481 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
4482 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
4483 ino, (ea_ibody_quota ?
4484 ea_ibody_quota->inodes : 0) +
4485 ea_block_quota.inodes + 1);
4488 if (!ext2fs_has_feature_huge_file(fs->super) ||
4489 !(inode->i_flags & EXT4_HUGE_FILE_FL))
4490 pb.num_blocks *= (fs->blocksize / 512);
4491 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
4493 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
4494 ino, inode->i_size, (unsigned long long) pb.last_block,
4495 (unsigned long long) ext2fs_inode_i_blocks(fs, inode),
4496 (unsigned long long) pb.num_blocks);
4498 size = EXT2_I_SIZE(inode);
4500 unsigned nblock = size >> EXT2_BLOCK_SIZE_BITS(fs->super);
4501 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
4506 flags = ctx->fs->flags;
4507 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4508 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
4510 ctx->fs->flags = (flags &
4511 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4513 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4514 if (err || sz != size) {
4518 } else if (size & (fs->blocksize - 1))
4520 else if (nblock > (pb.last_block + 1))
4522 else if (nblock < (pb.last_block + 1)) {
4523 if (((pb.last_block + 1) - nblock) >
4524 fs->super->s_prealloc_dir_blocks)
4528 if ((pb.last_init_lblock >= 0) &&
4529 /* Do not allow initialized allocated blocks past i_size*/
4530 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
4531 !(inode->i_flags & EXT4_VERITY_FL))
4533 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4534 size > ext2_max_sizes[fs->super->s_log_block_size])
4535 /* too big for a direct/indirect-mapped file */
4537 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4539 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
4540 /* too big for an extent-based file - 32bit ee_block */
4543 /* i_size for symlinks is checked elsewhere */
4544 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
4545 /* Did inline_data set pctx->num earlier? */
4547 pctx->num = (pb.last_block + 1) * fs->blocksize;
4548 pctx->group = bad_size;
4549 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
4550 ext2fs_inode_size_set(fs, inode, pctx->num);
4551 if (EXT2_I_SIZE(inode) == 0 &&
4552 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
4553 memset(inode->i_block, 0,
4554 sizeof(inode->i_block));
4555 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
4561 if (LINUX_S_ISREG(inode->i_mode) &&
4562 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4564 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
4565 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
4566 (ext2fs_has_feature_huge_file(fs->super) &&
4567 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
4568 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
4569 pctx->num = pb.num_blocks;
4570 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
4571 inode->i_blocks = pb.num_blocks;
4572 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
4579 * The kernel gets mad if we ask it to allocate bigalloc clusters to
4580 * a block mapped file, so rebuild it as an extent file. We can skip
4581 * symlinks because they're never rewritten.
4583 if (ext2fs_has_feature_bigalloc(fs->super) &&
4584 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
4585 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
4586 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
4587 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
4588 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
4589 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
4594 if (ctx->dirs_to_hash && pb.is_dir &&
4595 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
4596 !(inode->i_flags & EXT2_INDEX_FL) &&
4597 ((inode->i_size / fs->blocksize) >= 3))
4598 e2fsck_rehash_dir_later(ctx, ino);
4602 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
4607 * Helper function called by process block when an illegal block is
4608 * found. It returns a description about why the block is illegal
4610 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
4614 static char problem[80];
4616 super = fs->super->s_first_data_block;
4617 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
4618 if (block < super) {
4619 sprintf(problem, "< FIRSTBLOCK (%u)", super);
4621 } else if (block >= ext2fs_blocks_count(fs->super)) {
4622 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
4625 for (i = 0; i < fs->group_desc_count; i++) {
4626 if (block == super) {
4627 sprintf(problem, "is the superblock in group %d", i);
4630 if (block > super &&
4631 block <= (super + fs->desc_blocks)) {
4632 sprintf(problem, "is in the group descriptors "
4636 if (block == ext2fs_block_bitmap_loc(fs, i)) {
4637 sprintf(problem, "is the block bitmap of group %d", i);
4640 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
4641 sprintf(problem, "is the inode bitmap of group %d", i);
4644 if (block >= ext2fs_inode_table_loc(fs, i) &&
4645 (block < ext2fs_inode_table_loc(fs, i)
4646 + fs->inode_blocks_per_group)) {
4647 sprintf(problem, "is in the inode table of group %d",
4651 super += fs->super->s_blocks_per_group;
4658 * This is a helper function for check_blocks().
4660 static int process_block(ext2_filsys fs,
4662 e2_blkcnt_t blockcnt,
4663 blk64_t ref_block EXT2FS_ATTR((unused)),
4664 int ref_offset EXT2FS_ATTR((unused)),
4667 struct process_block_struct *p;
4668 struct problem_context *pctx;
4669 blk64_t blk = *block_nr;
4671 problem_t problem = 0;
4674 p = (struct process_block_struct *) priv_data;
4679 * For a directory, add logical block zero for processing even if it's
4680 * not mapped or we'll be perennially stuck with broken "." and ".."
4683 if (p->is_dir && blockcnt == 0 && blk == 0) {
4684 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
4685 if (pctx->errcode) {
4687 pctx->num = blockcnt;
4688 goto failed_add_dir_block;
4697 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
4702 * Simplistic fragmentation check. We merely require that the
4703 * file be contiguous. (Which can never be true for really
4704 * big files that are greater than a block group.)
4706 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
4707 if (p->previous_block+1 != blk) {
4708 if (ctx->options & E2F_OPT_FRAGCHECK) {
4716 printf(_("%6lu(%c): expecting %6lu "
4717 "got phys %6lu (blkcnt %lld)\n"),
4718 (unsigned long) pctx->ino, type,
4719 (unsigned long) p->previous_block+1,
4720 (unsigned long) blk,
4721 (long long) blockcnt);
4727 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
4728 !pctx->inode->i_size_high &&
4729 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
4730 problem = PR_1_TOOBIG_DIR;
4731 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
4732 problem = PR_1_TOOBIG_DIR;
4733 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
4734 problem = PR_1_TOOBIG_REG;
4735 if (!p->is_dir && !p->is_reg && blockcnt > 0)
4736 problem = PR_1_TOOBIG_SYMLINK;
4738 if (blk < fs->super->s_first_data_block ||
4739 blk >= ext2fs_blocks_count(fs->super))
4740 problem = PR_1_ILLEGAL_BLOCK_NUM;
4743 * If this IND/DIND/TIND block is squatting atop some critical metadata
4744 * (group descriptors, superblock, bitmap, inode table), any write to
4745 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
4746 * fix that and restart fsck.
4749 p->ino != EXT2_RESIZE_INO &&
4750 blk < ctx->fs->super->s_blocks_count &&
4751 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
4753 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
4754 if ((ctx->options & E2F_OPT_NO) == 0)
4755 ctx->flags |= E2F_FLAG_RESTART_LATER;
4759 p->num_illegal_blocks++;
4761 * A bit of subterfuge here -- we're trying to fix a block
4762 * mapping, but the IND/DIND/TIND block could have collided
4763 * with some critical metadata. So, fix the in-core mapping so
4764 * iterate won't go insane, but return 0 instead of
4765 * BLOCK_CHANGED so that it won't write the remapping out to
4766 * our multiply linked block.
4768 * Even if we previously determined that an *IND block
4769 * conflicts with critical metadata, we must still try to
4770 * iterate the *IND block as if it is an *IND block to find and
4771 * mark the blocks it points to. Better to be overly cautious
4772 * with the used_blocks map so that we don't move the *IND
4773 * block to a block that's really in use!
4775 if (p->ino != EXT2_RESIZE_INO &&
4777 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
4782 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
4783 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
4787 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
4789 set_latch_flags(PR_LATCH_BLOCK,
4794 pctx->blkcount = blockcnt;
4795 if (fix_problem(ctx, problem, pctx)) {
4796 blk = *block_nr = 0;
4797 ret_code = BLOCK_CHANGED;
4798 p->inode_modified = 1;
4800 * If the directory block is too big and is beyond the
4801 * end of the FS, don't bother trying to add it for
4802 * processing -- the kernel would never have created a
4803 * directory this large, and we risk an ENOMEM abort.
4804 * In any case, the toobig handler for extent-based
4805 * directories also doesn't feed toobig blocks to
4808 if (problem == PR_1_TOOBIG_DIR)
4815 if (p->ino == EXT2_RESIZE_INO) {
4817 * The resize inode has already be sanity checked
4818 * during pass #0 (the superblock checks). All we
4819 * have to do is mark the double indirect block as
4820 * being in use; all of the other blocks are handled
4821 * by mark_table_blocks()).
4823 if (blockcnt == BLOCK_COUNT_DIND)
4824 mark_block_used(ctx, blk);
4826 } else if (!(ctx->fs->cluster_ratio_bits &&
4827 p->previous_block &&
4828 (EXT2FS_B2C(ctx->fs, blk) ==
4829 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
4830 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
4831 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
4832 mark_block_used(ctx, blk);
4834 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
4835 p->last_block, blk, blockcnt)) {
4836 pctx->blk = blockcnt;
4838 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4839 mark_block_used(ctx, blk);
4840 mark_block_used(ctx, blk);
4843 p->last_block = blockcnt;
4844 p->previous_block = blk;
4846 if (p->is_dir && (blockcnt >= 0)) {
4847 while (++p->last_db_block < blockcnt) {
4848 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
4851 if (pctx->errcode) {
4853 pctx->num = p->last_db_block;
4854 goto failed_add_dir_block;
4857 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
4859 if (pctx->errcode) {
4861 pctx->num = blockcnt;
4862 failed_add_dir_block:
4863 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4864 /* Should never get here */
4865 ctx->flags |= E2F_FLAG_ABORT;
4872 static int process_bad_block(ext2_filsys fs,
4874 e2_blkcnt_t blockcnt,
4875 blk64_t ref_block EXT2FS_ATTR((unused)),
4876 int ref_offset EXT2FS_ATTR((unused)),
4879 struct process_block_struct *p;
4880 blk64_t blk = *block_nr;
4881 blk64_t first_block;
4883 struct problem_context *pctx;
4889 p = (struct process_block_struct *) priv_data;
4893 pctx->ino = EXT2_BAD_INO;
4895 pctx->blkcount = blockcnt;
4897 if ((blk < fs->super->s_first_data_block) ||
4898 (blk >= ext2fs_blocks_count(fs->super))) {
4899 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
4901 return BLOCK_CHANGED;
4907 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
4909 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
4911 return BLOCK_CHANGED;
4913 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4916 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
4919 return BLOCK_CHANGED;
4921 if (e2fsck_should_abort(ctx))
4924 mark_block_used(ctx, blk);
4928 printf ("DEBUG: Marking %u as bad.\n", blk);
4930 ctx->fs_badblocks_count++;
4932 * If the block is not used, then mark it as used and return.
4933 * If it is already marked as found, this must mean that
4934 * there's an overlap between the filesystem table blocks
4935 * (bitmaps and inode table) and the bad block list.
4937 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
4938 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4942 * Try to find the where the filesystem block was used...
4944 first_block = fs->super->s_first_data_block;
4946 for (i = 0; i < fs->group_desc_count; i++ ) {
4949 if (!ext2fs_bg_has_super(fs, i))
4951 if (blk == first_block) {
4953 if (fix_problem(ctx,
4954 PR_1_BAD_PRIMARY_SUPERBLOCK,
4957 return BLOCK_CHANGED;
4961 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
4964 if ((blk > first_block) &&
4965 (blk <= first_block + fs->desc_blocks)) {
4967 pctx->blk = *block_nr;
4968 if (fix_problem(ctx,
4969 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
4971 return BLOCK_CHANGED;
4975 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
4979 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
4980 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
4981 ctx->invalid_block_bitmap_flag[i]++;
4982 ctx->invalid_bitmaps++;
4986 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
4987 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
4988 ctx->invalid_inode_bitmap_flag[i]++;
4989 ctx->invalid_bitmaps++;
4993 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
4994 (blk < (ext2fs_inode_table_loc(fs, i) +
4995 fs->inode_blocks_per_group))) {
4997 * If there are bad blocks in the inode table,
4998 * the inode scan code will try to do
4999 * something reasonable automatically.
5003 first_block += fs->super->s_blocks_per_group;
5006 * If we've gotten to this point, then the only
5007 * possibility is that the bad block inode meta data
5008 * is using a bad block.
5010 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
5011 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
5012 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
5014 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
5016 return BLOCK_CHANGED;
5018 if (e2fsck_should_abort(ctx))
5025 /* Warn user that the block wasn't claimed */
5026 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
5031 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
5032 const char *name, int num, blk64_t *new_block)
5034 ext2_filsys fs = ctx->fs;
5036 blk64_t old_block = *new_block;
5039 unsigned flexbg_size;
5042 struct problem_context pctx;
5044 clear_problem_context(&pctx);
5047 pctx.blk = old_block;
5051 * For flex_bg filesystems, first try to allocate the metadata
5052 * within the flex_bg, and if that fails then try finding the
5053 * space anywhere in the filesystem.
5055 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
5057 flexbg_size = 1U << fs->super->s_log_groups_per_flex;
5058 flexbg = group / flexbg_size;
5059 first_block = ext2fs_group_first_block2(fs,
5060 flexbg_size * flexbg);
5061 last_grp = group | (flexbg_size - 1);
5062 if (last_grp >= fs->group_desc_count)
5063 last_grp = fs->group_desc_count - 1;
5064 last_block = ext2fs_group_last_block2(fs, last_grp);
5066 last_block = ext2fs_group_last_block2(fs, group);
5067 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
5068 num, ctx->block_found_map,
5070 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
5071 pctx.errcode = ext2fs_get_free_blocks2(fs,
5072 fs->super->s_first_data_block,
5073 ext2fs_blocks_count(fs->super),
5074 num, ctx->block_found_map, new_block);
5077 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
5078 ext2fs_unmark_valid(fs);
5079 ctx->flags |= E2F_FLAG_ABORT;
5082 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
5084 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
5085 ext2fs_unmark_valid(fs);
5086 ctx->flags |= E2F_FLAG_ABORT;
5089 ext2fs_mark_super_dirty(fs);
5090 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
5091 pctx.blk2 = *new_block;
5092 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
5093 PR_1_RELOC_TO), &pctx);
5095 for (i = 0; i < num; i++) {
5097 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
5099 pctx.errcode = io_channel_read_blk64(fs->io,
5100 old_block + i, 1, buf);
5102 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
5103 pctx.blk = (*new_block) + i;
5104 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
5107 pctx.blk = (*new_block) + i;
5108 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
5113 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
5115 ext2fs_free_mem(&buf);
5119 * This routine gets called at the end of pass 1 if bad blocks are
5120 * detected in the superblock, group descriptors, inode_bitmaps, or
5121 * block bitmaps. At this point, all of the blocks have been mapped
5122 * out, so we can try to allocate new block(s) to replace the bad
5125 static void handle_fs_bad_blocks(e2fsck_t ctx)
5127 ext2_filsys fs = ctx->fs;
5129 blk64_t first_block;
5132 for (i = 0; i < fs->group_desc_count; i++) {
5133 first_block = ext2fs_group_first_block2(fs, i);
5135 if (ctx->invalid_block_bitmap_flag[i]) {
5136 new_blk = ext2fs_block_bitmap_loc(fs, i);
5137 new_table_block(ctx, first_block, i, _("block bitmap"),
5139 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
5141 if (ctx->invalid_inode_bitmap_flag[i]) {
5142 new_blk = ext2fs_inode_bitmap_loc(fs, i);
5143 new_table_block(ctx, first_block, i, _("inode bitmap"),
5145 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
5147 if (ctx->invalid_inode_table_flag[i]) {
5148 new_blk = ext2fs_inode_table_loc(fs, i);
5149 new_table_block(ctx, first_block, i, _("inode table"),
5150 fs->inode_blocks_per_group,
5152 ext2fs_inode_table_loc_set(fs, i, new_blk);
5153 ctx->flags |= E2F_FLAG_RESTART;
5156 ctx->invalid_bitmaps = 0;
5160 * This routine marks all blocks which are used by the superblock,
5161 * group descriptors, inode bitmaps, and block bitmaps.
5163 static void mark_table_blocks(e2fsck_t ctx)
5165 ext2_filsys fs = ctx->fs;
5169 struct problem_context pctx;
5171 clear_problem_context(&pctx);
5173 for (i = 0; i < fs->group_desc_count; i++) {
5176 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
5177 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
5180 * Mark the blocks used for the inode table
5182 if (ext2fs_inode_table_loc(fs, i)) {
5183 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
5184 j < fs->inode_blocks_per_group;
5186 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5189 if (!ctx->invalid_inode_table_flag[i] &&
5191 PR_1_ITABLE_CONFLICT, &pctx)) {
5192 ctx->invalid_inode_table_flag[i]++;
5193 ctx->invalid_bitmaps++;
5196 ext2fs_mark_block_bitmap2(
5197 ctx->block_found_map, b);
5198 ext2fs_mark_block_bitmap2(
5199 ctx->block_metadata_map, b);
5205 * Mark block used for the block bitmap
5207 if (ext2fs_block_bitmap_loc(fs, i)) {
5208 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5209 ext2fs_block_bitmap_loc(fs, i))) {
5210 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
5211 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
5212 ctx->invalid_block_bitmap_flag[i]++;
5213 ctx->invalid_bitmaps++;
5216 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5217 ext2fs_block_bitmap_loc(fs, i));
5218 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5219 ext2fs_block_bitmap_loc(fs, i));
5223 * Mark block used for the inode bitmap
5225 if (ext2fs_inode_bitmap_loc(fs, i)) {
5226 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
5227 ext2fs_inode_bitmap_loc(fs, i))) {
5228 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
5229 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
5230 ctx->invalid_inode_bitmap_flag[i]++;
5231 ctx->invalid_bitmaps++;
5234 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
5235 ext2fs_inode_bitmap_loc(fs, i));
5236 ext2fs_mark_block_bitmap2(ctx->block_found_map,
5237 ext2fs_inode_bitmap_loc(fs, i));
5244 * These subroutines short circuits ext2fs_get_blocks and
5245 * ext2fs_check_directory; we use them since we already have the inode
5246 * structure, so there's no point in letting the ext2fs library read
5249 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
5252 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5255 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5256 return EXT2_ET_CALLBACK_NOTHANDLED;
5258 for (i=0; i < EXT2_N_BLOCKS; i++)
5259 blocks[i] = ctx->stashed_inode->i_block[i];
5263 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
5264 struct ext2_inode *inode)
5266 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5268 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5269 return EXT2_ET_CALLBACK_NOTHANDLED;
5270 *inode = *ctx->stashed_inode;
5274 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
5275 struct ext2_inode *inode)
5277 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5279 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
5280 (inode != ctx->stashed_inode))
5281 *ctx->stashed_inode = *inode;
5282 return EXT2_ET_CALLBACK_NOTHANDLED;
5285 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
5287 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5289 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
5290 return EXT2_ET_CALLBACK_NOTHANDLED;
5292 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
5293 return EXT2_ET_NO_DIRECTORY;
5297 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
5300 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5304 if (ctx->block_found_map) {
5305 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
5309 if (fs->block_map) {
5310 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
5311 ext2fs_mark_bb_dirty(fs);
5314 if (!fs->block_map) {
5315 retval = ext2fs_read_block_bitmap(fs);
5320 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
5329 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
5330 blk64_t len, blk64_t *pblk, blk64_t *plen)
5332 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5335 if (ctx->block_found_map)
5336 return ext2fs_new_range(fs, flags, goal, len,
5337 ctx->block_found_map, pblk, plen);
5339 if (!fs->block_map) {
5340 retval = ext2fs_read_block_bitmap(fs);
5345 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
5349 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
5351 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5353 /* Never free a critical metadata block */
5354 if (ctx->block_found_map &&
5355 ctx->block_metadata_map &&
5357 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
5360 if (ctx->block_found_map) {
5362 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
5364 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
5368 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
5369 blk_t num, int inuse)
5371 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
5373 /* Never free a critical metadata block */
5374 if (ctx->block_found_map &&
5375 ctx->block_metadata_map &&
5377 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
5380 if (ctx->block_found_map) {
5382 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
5385 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
5390 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
5392 ext2_filsys fs = ctx->fs;
5394 if (use_shortcuts) {
5395 fs->get_blocks = pass1_get_blocks;
5396 fs->check_directory = pass1_check_directory;
5397 fs->read_inode = pass1_read_inode;
5398 fs->write_inode = pass1_write_inode;
5399 ctx->stashed_ino = 0;
5402 fs->check_directory = 0;
5404 fs->write_inode = 0;
5408 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
5410 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
5411 ext2fs_set_block_alloc_stats_callback(ctx->fs,
5412 e2fsck_block_alloc_stats, 0);
5413 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
5414 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
5415 e2fsck_block_alloc_stats_range, NULL);