2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which blocks are in use. (block_found_map)
27 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
28 * - The data blocks of the directory inodes. (dir_map)
29 * - Ref counts for ea_inodes. (ea_inode_refs)
31 * Pass 1 is designed to stash away enough information so that the
32 * other passes should not need to read in the inode information
33 * during the normal course of a filesystem check. (Although if an
34 * inconsistency is detected, other passes may need to read in an
37 * Note that pass 1B will be invoked if there are any duplicate blocks
41 #define _GNU_SOURCE 1 /* get strnlen() */
50 #include <ext2fs/ext2_ext_attr.h>
54 #ifdef NO_INLINE_FUNCS
57 #define _INLINE_ inline
67 static int process_block(ext2_filsys fs, blk64_t *blocknr,
68 e2_blkcnt_t blockcnt, blk64_t ref_blk,
69 int ref_offset, void *priv_data);
70 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
71 e2_blkcnt_t blockcnt, blk64_t ref_blk,
72 int ref_offset, void *priv_data);
73 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
75 const struct ea_quota *ea_ibody_quota);
76 static void mark_table_blocks(e2fsck_t ctx);
77 static void alloc_bb_map(e2fsck_t ctx);
78 static void alloc_imagic_map(e2fsck_t ctx);
79 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
80 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino);
81 static void handle_fs_bad_blocks(e2fsck_t ctx);
82 static void process_inodes(e2fsck_t ctx, char *block_buf);
83 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
84 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
85 dgrp_t group, void * priv_data);
86 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
87 char *block_buf, int adjust_sign);
88 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
90 struct process_block_struct {
92 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
93 fragmented:1, compressed:1, bbcheck:1,
98 e2_blkcnt_t last_init_lblock;
99 e2_blkcnt_t last_db_block;
100 int num_illegal_blocks;
101 blk64_t previous_block;
102 struct ext2_inode *inode;
103 struct problem_context *pctx;
104 ext2fs_block_bitmap fs_meta_blocks;
107 struct extent_tree_info eti;
110 struct process_inode_block {
112 struct ea_quota ea_ibody_quota;
113 struct ext2_inode_large inode;
116 struct scan_callback_struct {
122 * For the inodes to process list.
124 static struct process_inode_block *inodes_to_process;
125 static int process_inode_count;
127 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
128 EXT2_MIN_BLOCK_LOG_SIZE + 1];
131 * Free all memory allocated by pass1 in preparation for restarting
134 static void unwind_pass1(ext2_filsys fs EXT2FS_ATTR((unused)))
136 ext2fs_free_mem(&inodes_to_process);
137 inodes_to_process = 0;
141 * Check to make sure a device inode is real. Returns 1 if the device
142 * checks out, 0 if not.
144 * Note: this routine is now also used to check FIFO's and Sockets,
145 * since they have the same requirement; the i_block fields should be
148 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
149 struct ext2_inode *inode)
154 * If the index flag is set, then this is a bogus
157 if (inode->i_flags & EXT2_INDEX_FL)
161 * We should be able to do the test below all the time, but
162 * because the kernel doesn't forcibly clear the device
163 * inode's additional i_block fields, there are some rare
164 * occasions when a legitimate device inode will have non-zero
165 * additional i_block fields. So for now, we only complain
166 * when the immutable flag is set, which should never happen
167 * for devices. (And that's when the problem is caused, since
168 * you can't set or clear immutable flags for devices.) Once
169 * the kernel has been fixed we can change this...
171 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
172 for (i=4; i < EXT2_N_BLOCKS; i++)
173 if (inode->i_block[i])
180 * Check to make sure a symlink inode is real. Returns 1 if the symlink
181 * checks out, 0 if not.
183 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
184 struct ext2_inode *inode, char *buf)
188 ext2_extent_handle_t handle;
189 struct ext2_extent_info info;
190 struct ext2fs_extent extent;
192 if ((inode->i_size_high || inode->i_size == 0) ||
193 (inode->i_flags & EXT2_INDEX_FL))
196 if (inode->i_flags & EXT4_EXTENTS_FL) {
197 if (inode->i_flags & EXT4_INLINE_DATA_FL)
199 if (inode->i_size > fs->blocksize)
201 if (ext2fs_extent_open2(fs, ino, inode, &handle))
204 if (ext2fs_extent_get_info(handle, &info) ||
205 (info.num_entries != 1) ||
206 (info.max_depth != 0))
208 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent) ||
209 (extent.e_lblk != 0) ||
210 (extent.e_len != 1) ||
211 (extent.e_pblk < fs->super->s_first_data_block) ||
212 (extent.e_pblk >= ext2fs_blocks_count(fs->super)))
216 ext2fs_extent_free(handle);
220 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
223 if (ext2fs_inline_data_size(fs, ino, &inline_size))
225 if (inode->i_size != inline_size)
231 if (ext2fs_is_fast_symlink(inode)) {
232 if (inode->i_size >= sizeof(inode->i_block))
235 len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
236 if (len == sizeof(inode->i_block))
239 if ((inode->i_size >= fs->blocksize) ||
240 (inode->i_block[0] < fs->super->s_first_data_block) ||
241 (inode->i_block[0] >= ext2fs_blocks_count(fs->super)))
244 for (i = 1; i < EXT2_N_BLOCKS; i++)
245 if (inode->i_block[i])
248 if (io_channel_read_blk64(fs->io, inode->i_block[0], 1, buf))
251 if (inode->i_flags & EXT4_ENCRYPT_FL) {
252 len = ext2fs_le16_to_cpu(*((__u16 *)buf)) + 2;
254 len = strnlen(buf, fs->blocksize);
256 if (len >= fs->blocksize)
259 if (len != inode->i_size)
260 if ((inode->i_flags & EXT4_ENCRYPT_FL) == 0)
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;
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_entry2(ctx->fs, entry, NULL, &hash);
353 com_err("check_large_ea_inode", retval,
354 _("while hashing entry with e_value_inum = %u"),
355 entry->e_value_inum);
359 if (hash == entry->e_hash) {
360 *quota_blocks = size_to_quota_blocks(ctx->fs,
361 entry->e_value_size);
363 /* This might be an old Lustre-style ea_inode reference. */
364 if (inode.i_mtime == pctx->ino &&
365 inode.i_generation == pctx->inode->i_generation) {
368 /* If target inode is also missing EA_INODE flag,
369 * this is likely to be a bad reference.
371 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
372 pctx->num = entry->e_value_inum;
373 return PR_1_ATTR_VALUE_EA_INODE;
375 pctx->num = entry->e_hash;
376 return PR_1_ATTR_HASH;
381 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
382 pctx->num = entry->e_value_inum;
383 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
384 inode.i_flags |= EXT4_EA_INODE_FL;
385 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
388 return PR_1_ATTR_NO_EA_INODE_FL;
394 static void inc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx,
395 struct ext2_ext_attr_entry *first, void *end)
397 struct ext2_ext_attr_entry *entry;
400 (void *)entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry);
401 entry = EXT2_EXT_ATTR_NEXT(entry)) {
402 if (!entry->e_value_inum)
404 if (!ctx->ea_inode_refs) {
405 pctx->errcode = ea_refcount_create(0,
406 &ctx->ea_inode_refs);
409 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
410 ctx->flags |= E2F_FLAG_ABORT;
414 ea_refcount_increment(ctx->ea_inode_refs, entry->e_value_inum,
419 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx,
420 struct ea_quota *ea_ibody_quota)
422 struct ext2_super_block *sb = ctx->fs->super;
423 struct ext2_inode_large *inode;
424 struct ext2_ext_attr_entry *entry;
425 char *start, *header, *end;
426 unsigned int storage_size, remain;
427 problem_t problem = 0;
430 ea_ibody_quota->blocks = 0;
431 ea_ibody_quota->inodes = 0;
433 inode = (struct ext2_inode_large *) pctx->inode;
434 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
435 inode->i_extra_isize;
436 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
437 inode->i_extra_isize;
438 end = header + storage_size;
439 start = header + sizeof(__u32);
440 entry = (struct ext2_ext_attr_entry *) start;
442 /* scan all entry's headers first */
444 /* take finish entry 0UL into account */
445 remain = storage_size - sizeof(__u32);
447 region = region_create(0, storage_size);
449 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
451 ctx->flags |= E2F_FLAG_ABORT;
454 if (region_allocate(region, 0, sizeof(__u32))) {
455 problem = PR_1_INODE_EA_ALLOC_COLLISION;
459 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
460 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
463 if (region_allocate(region, (char *)entry - (char *)header,
464 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
465 problem = PR_1_INODE_EA_ALLOC_COLLISION;
469 /* header eats this space */
470 remain -= sizeof(struct ext2_ext_attr_entry);
472 /* is attribute name valid? */
473 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
474 pctx->num = entry->e_name_len;
475 problem = PR_1_ATTR_NAME_LEN;
479 /* attribute len eats this space */
480 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
482 if (entry->e_value_inum == 0) {
483 /* check value size */
484 if (entry->e_value_size > remain) {
485 pctx->num = entry->e_value_size;
486 problem = PR_1_ATTR_VALUE_SIZE;
490 if (entry->e_value_size &&
491 region_allocate(region,
492 sizeof(__u32) + entry->e_value_offs,
494 entry->e_value_size))) {
495 problem = PR_1_INODE_EA_ALLOC_COLLISION;
499 hash = ext2fs_ext_attr_hash_entry(entry,
500 start + entry->e_value_offs);
502 /* e_hash may be 0 in older inode's ea */
503 if (entry->e_hash != 0 && entry->e_hash != hash) {
504 pctx->num = entry->e_hash;
505 problem = PR_1_ATTR_HASH;
509 blk64_t quota_blocks;
511 problem = check_large_ea_inode(ctx, entry, pctx,
516 ea_ibody_quota->blocks += quota_blocks;
517 ea_ibody_quota->inodes++;
520 /* If EA value is stored in external inode then it does not
521 * consume space here */
522 if (entry->e_value_inum == 0)
523 remain -= entry->e_value_size;
525 entry = EXT2_EXT_ATTR_NEXT(entry);
528 if (region_allocate(region, (char *)entry - (char *)header,
530 problem = PR_1_INODE_EA_ALLOC_COLLISION;
537 * it seems like a corruption. it's very unlikely we could repair
538 * EA(s) in automatic fashion -bzzz
540 if (problem == 0 || !fix_problem(ctx, problem, pctx)) {
541 inc_ea_inode_refs(ctx, pctx,
542 (struct ext2_ext_attr_entry *)start, end);
546 /* simply remove all possible EA(s) */
547 *((__u32 *)header) = 0UL;
548 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
549 EXT2_INODE_SIZE(sb), "pass1");
550 ea_ibody_quota->blocks = 0;
551 ea_ibody_quota->inodes = 0;
554 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
555 return (xtime & (1U << 31)) != 0 &&
556 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
559 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
560 check_inode_extra_negative_epoch(inode->i_##xtime, \
561 inode->i_##xtime##_extra)
563 /* When today's date is earlier than 2242, we assume that atimes,
564 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
565 * actually pre-1970 dates mis-encoded.
567 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
569 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx,
570 struct ea_quota *ea_ibody_quota)
572 struct ext2_super_block *sb = ctx->fs->super;
573 struct ext2_inode_large *inode;
577 ea_ibody_quota->blocks = 0;
578 ea_ibody_quota->inodes = 0;
580 inode = (struct ext2_inode_large *) pctx->inode;
581 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
582 /* this isn't large inode. so, nothing to check */
587 printf("inode #%u, i_extra_size %d\n", pctx->ino,
588 inode->i_extra_isize);
590 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
591 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
592 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
594 * For now we will allow i_extra_isize to be 0, but really
595 * implementations should never allow i_extra_isize to be 0
597 if (inode->i_extra_isize &&
598 (inode->i_extra_isize < min || inode->i_extra_isize > max ||
599 inode->i_extra_isize & 3)) {
600 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
602 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
603 inode->i_extra_isize = sb->s_want_extra_isize;
605 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
606 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
607 EXT2_INODE_SIZE(sb), "pass1");
610 /* check if there is no place for an EA header */
611 if (inode->i_extra_isize >= max - sizeof(__u32))
614 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
615 inode->i_extra_isize);
616 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
617 /* it seems inode has an extended attribute(s) in body */
618 check_ea_in_inode(ctx, pctx, ea_ibody_quota);
622 * If the inode's extended atime (ctime, crtime, mtime) is stored in
623 * the old, invalid format, repair it.
625 if (((sizeof(time_t) <= 4) ||
626 (((sizeof(time_t) > 4) &&
627 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
628 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
629 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
630 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
631 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
633 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
636 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
637 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
638 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
639 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
640 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
641 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
642 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
643 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
644 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
645 EXT2_INODE_SIZE(sb), "pass1");
651 * Check to see if the inode might really be a directory, despite i_mode
653 * This is a lot of complexity for something for which I'm not really
654 * convinced happens frequently in the wild. If for any reason this
655 * causes any problems, take this code out.
656 * [tytso:20070331.0827EDT]
658 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
661 struct ext2_inode *inode = pctx->inode;
662 struct ext2_dir_entry *dirent;
665 unsigned int i, rec_len, not_device = 0;
670 * If the mode looks OK, we believe it. If the first block in
671 * the i_block array is 0, this cannot be a directory. If the
672 * inode is extent-mapped, it is still the case that the latter
673 * cannot be 0 - the magic number in the extent header would make
676 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
677 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
681 * Check the block numbers in the i_block array for validity:
682 * zero blocks are skipped (but the first one cannot be zero -
683 * see above), other blocks are checked against the first and
684 * max data blocks (from the the superblock) and against the
685 * block bitmap. Any invalid block found means this cannot be
688 * If there are non-zero blocks past the fourth entry, then
689 * this cannot be a device file: we remember that for the next
692 * For extent mapped files, we don't do any sanity checking:
693 * just try to get the phys block of logical block 0 and run
696 * For inline data files, we just try to get the size of inline
697 * data. If it's true, we will treat it as a directory.
700 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
701 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
702 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
705 unsigned int rec_len2;
706 struct ext2_dir_entry de;
708 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
711 * If the size isn't a multiple of 4, it's probably not a
717 * If the first 10 bytes don't look like a directory entry,
718 * it's probably not a directory.
720 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
721 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
722 EXT2_DIR_REC_LEN(0));
723 dotdot = ext2fs_le32_to_cpu(dotdot);
724 de.inode = ext2fs_le32_to_cpu(de.inode);
725 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
726 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
727 if (dotdot >= ctx->fs->super->s_inodes_count ||
728 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
729 dotdot != EXT2_ROOT_INO) ||
730 de.inode >= ctx->fs->super->s_inodes_count ||
731 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
733 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
734 EXT4_INLINE_DATA_DOTDOT_SIZE)
736 /* device files never have a "system.data" entry */
738 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
740 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
743 /* device files are never extent mapped */
746 for (i=0; i < EXT2_N_BLOCKS; i++) {
747 blk = inode->i_block[i];
753 if (blk < ctx->fs->super->s_first_data_block ||
754 blk >= ext2fs_blocks_count(ctx->fs->super) ||
755 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
757 return; /* Invalid block, can't be dir */
759 blk = inode->i_block[0];
763 * If the mode says this is a device file and the i_links_count field
764 * is sane and we have not ruled it out as a device file previously,
765 * we declare it a device file, not a directory.
767 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
768 (inode->i_links_count == 1) && !not_device)
771 /* read the first block */
772 ehandler_operation(_("reading directory block"));
773 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
774 ehandler_operation(0);
778 dirent = (struct ext2_dir_entry *) buf;
779 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
782 if ((ext2fs_dirent_name_len(dirent) != 1) ||
783 (dirent->name[0] != '.') ||
784 (dirent->inode != pctx->ino) ||
787 (rec_len >= ctx->fs->blocksize - 12))
790 dirent = (struct ext2_dir_entry *) (buf + rec_len);
791 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
794 if ((ext2fs_dirent_name_len(dirent) != 2) ||
795 (dirent->name[0] != '.') ||
796 (dirent->name[1] != '.') ||
802 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
803 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
804 e2fsck_write_inode_full(ctx, pctx->ino, inode,
805 EXT2_INODE_SIZE(ctx->fs->super),
806 "check_is_really_dir");
810 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
811 int flags, ext2_icount_t hint,
814 unsigned int threshold;
815 unsigned int save_type;
824 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
826 profile_get_uint(ctx->profile, "scratch_files",
827 "numdirs_threshold", 0, 0, &threshold);
828 profile_get_boolean(ctx->profile, "scratch_files",
829 "icount", 0, 1, &enable);
831 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
833 num_dirs = 1024; /* Guess */
835 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
836 (!threshold || num_dirs > threshold)) {
837 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
842 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
844 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
845 flags |= EXT2_ICOUNT_OPT_FULLMAP;
846 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
847 ctx->fs->default_bitmap_type = save_type;
851 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
853 struct problem_context *pctx)
856 struct ext2_inode_large inode;
859 * Reread inode. If we don't see checksum error, then this inode
860 * has been fixed elsewhere.
862 ctx->stashed_ino = 0;
863 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
865 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
871 * Checksum still doesn't match. That implies that the inode passes
872 * all the sanity checks, so maybe the checksum is simply corrupt.
873 * See if the user will go for fixing that.
875 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
878 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
883 static void reserve_block_for_root_repair(e2fsck_t ctx)
887 ext2_filsys fs = ctx->fs;
889 ctx->root_repair_block = 0;
890 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
893 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
896 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
897 ctx->root_repair_block = blk;
900 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
904 ext2_filsys fs = ctx->fs;
905 static const char name[] = "lost+found";
908 ctx->lnf_repair_block = 0;
909 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
912 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
915 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
916 ctx->lnf_repair_block = blk;
919 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
923 struct ext2_xattr_handle *handle;
926 retval = ext2fs_xattrs_open(fs, ino, &handle);
930 retval = ext2fs_xattrs_read(handle);
934 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
939 (void) ext2fs_xattrs_close(&handle);
943 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
944 struct problem_context *pctx,
951 * If the inode failed the checksum and the user didn't
952 * clear the inode, test the checksum again -- if it still
953 * fails, ask the user if the checksum should be corrected.
955 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
957 ctx->flags |= E2F_FLAG_ABORT;
959 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
961 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
962 if ((ctx)->flags & E2F_FLAG_ABORT) \
966 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
971 for (i = 0; i < EXT2_N_BLOCKS; i++) {
972 x = inode->i_block[i];
973 #ifdef WORDS_BIGENDIAN
974 x = ext2fs_swab32(x);
976 if (x >= ext2fs_blocks_count(fs->super))
984 * Figure out what to do with an inode that has both extents and inline data
985 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
987 static int fix_inline_data_extents_file(e2fsck_t ctx,
989 struct ext2_inode *inode,
991 struct problem_context *pctx)
993 size_t max_inline_ea_size;
994 ext2_filsys fs = ctx->fs;
997 /* Both feature flags not set? Just run the regular checks */
998 if (!ext2fs_has_feature_extents(fs->super) &&
999 !ext2fs_has_feature_inline_data(fs->super))
1002 /* Clear both flags if it's a special file */
1003 if (LINUX_S_ISCHR(inode->i_mode) ||
1004 LINUX_S_ISBLK(inode->i_mode) ||
1005 LINUX_S_ISFIFO(inode->i_mode) ||
1006 LINUX_S_ISSOCK(inode->i_mode)) {
1007 check_extents_inlinedata(ctx, pctx);
1011 /* If it looks like an extent tree, try to clear inlinedata */
1012 if (ext2fs_extent_header_verify(inode->i_block,
1013 sizeof(inode->i_block)) == 0 &&
1014 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1015 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1020 /* If it looks short enough to be inline data, try to clear extents */
1021 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1022 max_inline_ea_size = inode_size -
1023 (EXT2_GOOD_OLD_INODE_SIZE +
1024 ((struct ext2_inode_large *)inode)->i_extra_isize);
1026 max_inline_ea_size = 0;
1027 if (EXT2_I_SIZE(inode) <
1028 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1029 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1030 inode->i_flags &= ~EXT4_EXTENTS_FL;
1036 * Too big for inline data, but no evidence of extent tree -
1037 * maybe it's a block map file? If the mappings all look valid?
1039 if (could_be_block_map(fs, inode) &&
1040 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1041 #ifdef WORDS_BIGENDIAN
1044 for (i = 0; i < EXT2_N_BLOCKS; i++)
1045 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1048 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1053 /* Oh well, just clear the busted inode. */
1054 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1055 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1061 e2fsck_write_inode(ctx, ino, inode, "pass1");
1066 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1068 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1069 dgrp_t start = *group, grp;
1070 blk64_t blocks_to_read = 0;
1071 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1073 if (ctx->readahead_kb == 0)
1076 /* Keep iterating groups until we have enough to readahead */
1077 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1078 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
1079 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1081 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1082 ext2fs_bg_itable_unused(ctx->fs, grp);
1083 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1085 if (blocks_to_read * ctx->fs->blocksize >
1086 ctx->readahead_kb * 1024)
1090 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1092 if (err == EAGAIN) {
1093 ctx->readahead_kb /= 2;
1099 /* Error; disable itable readahead */
1100 *group = ctx->fs->group_desc_count;
1101 *next_ino = ctx->fs->super->s_inodes_count;
1104 * Don't do more readahead until we've reached the first inode
1105 * of the last inode scan buffer block for the last group.
1108 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1109 ctx->inode_buffer_blocks :
1110 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1111 ctx->fs->blocksize /
1112 EXT2_INODE_SIZE(ctx->fs->super);
1114 *next_ino = inodes_in_group -
1115 (inodes_in_group % inodes_per_buffer) + 1 +
1116 (grp * ctx->fs->super->s_inodes_per_group);
1121 * Check if the passed ino is one of the used superblock quota inodes.
1123 * Before the quota inodes were journaled, older superblock quota inodes
1124 * were just regular files in the filesystem and not reserved inodes. This
1125 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1126 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1128 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1130 enum quota_type qtype;
1132 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1133 if (*quota_sb_inump(sb, qtype) == ino)
1140 * Check if the passed ino is one of the reserved quota inodes.
1141 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1142 * inodes. These inodes may or may not be in use by the quota feature.
1144 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1146 enum quota_type qtype;
1148 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1149 if (quota_type2inum(qtype, fs->super) == ino)
1155 void e2fsck_pass1(e2fsck_t ctx)
1159 ext2_filsys fs = ctx->fs;
1161 struct ext2_inode *inode = NULL;
1162 ext2_inode_scan scan = NULL;
1163 char *block_buf = NULL;
1164 #ifdef RESOURCE_TRACK
1165 struct resource_track rtrack;
1167 unsigned char frag, fsize;
1168 struct problem_context pctx;
1169 struct scan_callback_struct scan_struct;
1170 struct ext2_super_block *sb = ctx->fs->super;
1172 int imagic_fs, extent_fs, inlinedata_fs;
1173 int low_dtime_check = 1;
1174 int inode_size = EXT2_INODE_SIZE(fs->super);
1176 int failed_csum = 0;
1177 ext2_ino_t ino_threshold = 0;
1178 dgrp_t ra_group = 0;
1179 struct ea_quota ea_ibody_quota;
1181 init_resource_track(&rtrack, ctx->fs->io);
1182 clear_problem_context(&pctx);
1184 /* If we can do readahead, figure out how many groups to pull in. */
1185 if (!e2fsck_can_readahead(ctx->fs))
1186 ctx->readahead_kb = 0;
1187 else if (ctx->readahead_kb == ~0ULL)
1188 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1189 pass1_readahead(ctx, &ra_group, &ino_threshold);
1191 if (!(ctx->options & E2F_OPT_PREEN))
1192 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1194 if (ext2fs_has_feature_dir_index(fs->super) &&
1195 !(ctx->options & E2F_OPT_NO)) {
1196 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1197 ctx->dirs_to_hash = 0;
1201 mtrace_print("Pass 1");
1204 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1206 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1207 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1208 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1209 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1210 max_sizes = (max_sizes * (1UL << i));
1211 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1215 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1216 extent_fs = ext2fs_has_feature_extents(sb);
1217 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1220 * Allocate bitmaps structures
1222 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1223 EXT2FS_BMAP64_RBTREE,
1225 &ctx->inode_used_map);
1228 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1229 ctx->flags |= E2F_FLAG_ABORT;
1232 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1233 _("directory inode map"),
1234 EXT2FS_BMAP64_AUTODIR,
1235 "inode_dir_map", &ctx->inode_dir_map);
1238 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1239 ctx->flags |= E2F_FLAG_ABORT;
1242 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1243 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1244 "inode_reg_map", &ctx->inode_reg_map);
1247 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1248 ctx->flags |= E2F_FLAG_ABORT;
1251 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1252 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1253 "block_found_map", &ctx->block_found_map);
1256 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1257 ctx->flags |= E2F_FLAG_ABORT;
1260 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1261 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1262 "block_metadata_map", &ctx->block_metadata_map);
1265 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1266 ctx->flags |= E2F_FLAG_ABORT;
1269 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1270 &ctx->inode_link_info);
1272 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1273 ctx->flags |= E2F_FLAG_ABORT;
1276 bufsize = inode_size;
1277 if (bufsize < sizeof(struct ext2_inode_large))
1278 bufsize = sizeof(struct ext2_inode_large);
1279 inode = (struct ext2_inode *)
1280 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1282 inodes_to_process = (struct process_inode_block *)
1283 e2fsck_allocate_memory(ctx,
1284 (ctx->process_inode_size *
1285 sizeof(struct process_inode_block)),
1286 "array of inodes to process");
1287 process_inode_count = 0;
1289 pctx.errcode = ext2fs_init_dblist(fs, 0);
1291 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1292 ctx->flags |= E2F_FLAG_ABORT;
1297 * If the last orphan field is set, clear it, since the pass1
1298 * processing will automatically find and clear the orphans.
1299 * In the future, we may want to try using the last_orphan
1300 * linked list ourselves, but for now, we clear it so that the
1301 * ext3 mount code won't get confused.
1303 if (!(ctx->options & E2F_OPT_READONLY)) {
1304 if (fs->super->s_last_orphan) {
1305 fs->super->s_last_orphan = 0;
1306 ext2fs_mark_super_dirty(fs);
1310 mark_table_blocks(ctx);
1311 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1312 &ctx->block_found_map);
1314 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1315 ctx->flags |= E2F_FLAG_ABORT;
1318 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1319 "block interate buffer");
1320 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1321 e2fsck_use_inode_shortcuts(ctx, 1);
1322 e2fsck_intercept_block_allocations(ctx);
1323 old_op = ehandler_operation(_("opening inode scan"));
1324 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1326 ehandler_operation(old_op);
1328 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1329 ctx->flags |= E2F_FLAG_ABORT;
1332 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1333 EXT2_SF_WARN_GARBAGE_INODES, 0);
1334 ctx->stashed_inode = inode;
1335 scan_struct.ctx = ctx;
1336 scan_struct.block_buf = block_buf;
1337 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1338 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1339 ctx->fs->group_desc_count)))
1341 if ((fs->super->s_wtime < fs->super->s_inodes_count) ||
1342 (fs->super->s_mtime < fs->super->s_inodes_count) ||
1343 (fs->super->s_mkfs_time &&
1344 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1345 low_dtime_check = 0;
1347 if (ext2fs_has_feature_mmp(fs->super) &&
1348 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1349 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1350 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1351 fs->super->s_mmp_block);
1353 /* Set up ctx->lost_and_found if possible */
1354 (void) e2fsck_get_lost_and_found(ctx, 0);
1357 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1358 if (e2fsck_mmp_update(fs))
1359 fatal_error(ctx, 0);
1361 old_op = ehandler_operation(_("getting next inode from scan"));
1362 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1364 if (ino > ino_threshold)
1365 pass1_readahead(ctx, &ra_group, &ino_threshold);
1366 ehandler_operation(old_op);
1367 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1369 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1371 * If badblocks says badblocks is bad, offer to clear
1372 * the list, update the in-core bb list, and restart
1375 if (ino == EXT2_BAD_INO &&
1376 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1380 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1381 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1382 ctx->fs->badblocks = NULL;
1383 err = ext2fs_read_bb_inode(ctx->fs,
1384 &ctx->fs->badblocks);
1386 fix_problem(ctx, PR_1_ISCAN_ERROR,
1388 ctx->flags |= E2F_FLAG_ABORT;
1391 err = ext2fs_inode_scan_goto_blockgroup(scan,
1394 fix_problem(ctx, PR_1_ISCAN_ERROR,
1396 ctx->flags |= E2F_FLAG_ABORT;
1401 if (!ctx->inode_bb_map)
1403 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1404 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1408 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1409 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1410 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1411 ctx->flags |= E2F_FLAG_ABORT;
1418 ctx->stashed_ino = ino;
1420 /* Clear trashed inode? */
1421 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1422 inode->i_links_count > 0 &&
1423 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1425 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1427 failed_csum = pctx.errcode != 0;
1430 * Check for inodes who might have been part of the
1431 * orphaned list linked list. They should have gotten
1432 * dealt with by now, unless the list had somehow been
1435 * FIXME: In the future, inodes which are still in use
1436 * (and which are therefore) pending truncation should
1437 * be handled specially. Right now we just clear the
1438 * dtime field, and the normal e2fsck handling of
1439 * inodes where i_size and the inode blocks are
1440 * inconsistent is to fix i_size, instead of releasing
1441 * the extra blocks. This won't catch the inodes that
1442 * was at the end of the orphan list, but it's better
1443 * than nothing. The right answer is that there
1444 * shouldn't be any bugs in the orphan list handling. :-)
1446 if (inode->i_dtime && low_dtime_check &&
1447 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1448 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1449 inode->i_dtime = inode->i_links_count ?
1451 e2fsck_write_inode(ctx, ino, inode,
1457 if (inode->i_links_count) {
1458 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1459 ino, inode->i_links_count);
1461 pctx.num = inode->i_links_count;
1462 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1463 ctx->flags |= E2F_FLAG_ABORT;
1466 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1467 !quota_inum_is_reserved(fs, ino)) {
1468 if (!inode->i_dtime && inode->i_mode) {
1469 if (fix_problem(ctx,
1470 PR_1_ZERO_DTIME, &pctx)) {
1471 inode->i_dtime = ctx->now;
1472 e2fsck_write_inode(ctx, ino, inode,
1477 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1481 /* Conflicting inlinedata/extents inode flags? */
1482 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1483 (inode->i_flags & EXT4_EXTENTS_FL)) {
1484 int res = fix_inline_data_extents_file(ctx, ino, inode,
1488 /* skip FINISH_INODE_LOOP */
1493 /* Test for incorrect inline_data flags settings. */
1494 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1495 (ino >= EXT2_FIRST_INODE(fs->super))) {
1498 pctx.errcode = ext2fs_inline_data_size(fs, ino, &size);
1499 if (!pctx.errcode && size &&
1500 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1501 ext2fs_set_feature_inline_data(sb);
1502 ext2fs_mark_super_dirty(fs);
1504 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1505 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1506 /* skip FINISH_INODE_LOOP */
1511 /* Test for inline data flag but no attr */
1512 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1513 (ino >= EXT2_FIRST_INODE(fs->super))) {
1520 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1521 err = get_inline_data_ea_size(fs, ino, &size);
1522 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1523 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1527 /* Everything is awesome... */
1529 case EXT2_ET_BAD_EA_BLOCK_NUM:
1530 case EXT2_ET_BAD_EA_HASH:
1531 case EXT2_ET_BAD_EA_HEADER:
1532 case EXT2_ET_EA_BAD_NAME_LEN:
1533 case EXT2_ET_EA_BAD_VALUE_SIZE:
1534 case EXT2_ET_EA_KEY_NOT_FOUND:
1535 case EXT2_ET_EA_NO_SPACE:
1536 case EXT2_ET_MISSING_EA_FEATURE:
1537 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1538 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1539 case EXT2_ET_INLINE_DATA_NO_SPACE:
1540 case EXT2_ET_NO_INLINE_DATA:
1541 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1542 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1543 /* broken EA or no system.data EA; truncate */
1544 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1546 err = ext2fs_inode_size_set(fs, inode, 0);
1549 ctx->flags |= E2F_FLAG_ABORT;
1552 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1553 memset(&inode->i_block, 0,
1554 sizeof(inode->i_block));
1555 e2fsck_write_inode(ctx, ino, inode,
1561 /* Some other kind of non-xattr error? */
1563 ctx->flags |= E2F_FLAG_ABORT;
1569 * Test for incorrect extent flag settings.
1571 * On big-endian machines we must be careful:
1572 * When the inode is read, the i_block array is not swapped
1573 * if the extent flag is set. Therefore if we are testing
1574 * for or fixing a wrongly-set flag, we must potentially
1575 * (un)swap before testing, or after fixing.
1579 * In this case the extents flag was set when read, so
1580 * extent_header_verify is ok. If the inode is cleared,
1581 * no need to swap... so no extra swapping here.
1583 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1584 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1585 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1586 if ((ext2fs_extent_header_verify(inode->i_block,
1587 sizeof(inode->i_block)) == 0) &&
1588 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1589 ext2fs_set_feature_extents(sb);
1590 ext2fs_mark_super_dirty(fs);
1592 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1594 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1595 if (ino == EXT2_BAD_INO)
1596 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1598 /* skip FINISH_INODE_LOOP */
1604 * For big-endian machines:
1605 * If the inode didn't have the extents flag set when it
1606 * was read, then the i_blocks array was swapped. To test
1607 * as an extents header, we must swap it back first.
1608 * IF we then set the extents flag, the entire i_block
1609 * array must be un/re-swapped to make it proper extents data.
1611 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1612 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1613 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1614 (LINUX_S_ISREG(inode->i_mode) ||
1615 LINUX_S_ISDIR(inode->i_mode))) {
1617 #ifdef WORDS_BIGENDIAN
1618 __u32 tmp_block[EXT2_N_BLOCKS];
1620 for (i = 0; i < EXT2_N_BLOCKS; i++)
1621 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1624 ehp = inode->i_block;
1626 if ((ext2fs_extent_header_verify(ehp,
1627 sizeof(inode->i_block)) == 0) &&
1628 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1629 inode->i_flags |= EXT4_EXTENTS_FL;
1630 #ifdef WORDS_BIGENDIAN
1631 memcpy(inode->i_block, tmp_block,
1632 sizeof(inode->i_block));
1634 e2fsck_write_inode(ctx, ino, inode, "pass1");
1639 if (ino == EXT2_BAD_INO) {
1640 struct process_block_struct pb;
1642 if ((failed_csum || inode->i_mode || inode->i_uid ||
1643 inode->i_gid || inode->i_links_count ||
1644 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1645 inode->i_file_acl) &&
1646 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1647 memset(inode, 0, sizeof(struct ext2_inode));
1648 e2fsck_write_inode(ctx, ino, inode,
1653 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1654 &pb.fs_meta_blocks);
1657 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1658 ctx->flags |= E2F_FLAG_ABORT;
1661 pb.ino = EXT2_BAD_INO;
1662 pb.num_blocks = pb.last_block = 0;
1663 pb.last_db_block = -1;
1664 pb.num_illegal_blocks = 0;
1665 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1666 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1670 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1671 block_buf, process_bad_block, &pb);
1672 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1674 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1675 ctx->flags |= E2F_FLAG_ABORT;
1679 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1680 ctx->flags |= E2F_FLAG_ABORT;
1683 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1684 clear_problem_context(&pctx);
1685 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1687 } else if (ino == EXT2_ROOT_INO) {
1689 * Make sure the root inode is a directory; if
1690 * not, offer to clear it. It will be
1691 * regenerated in pass #3.
1693 if (!LINUX_S_ISDIR(inode->i_mode)) {
1694 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1698 * If dtime is set, offer to clear it. mke2fs
1699 * version 0.2b created filesystems with the
1700 * dtime field set for the root and lost+found
1701 * directories. We won't worry about
1702 * /lost+found, since that can be regenerated
1703 * easily. But we will fix the root directory
1704 * as a special case.
1706 if (inode->i_dtime && inode->i_links_count) {
1707 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1709 e2fsck_write_inode(ctx, ino, inode,
1714 } else if (ino == EXT2_JOURNAL_INO) {
1715 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1716 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1717 if (!LINUX_S_ISREG(inode->i_mode) &&
1718 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1720 inode->i_mode = LINUX_S_IFREG;
1721 e2fsck_write_inode(ctx, ino, inode,
1725 check_blocks(ctx, &pctx, block_buf, NULL);
1726 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1729 if ((inode->i_links_count ||
1730 inode->i_blocks || inode->i_block[0]) &&
1731 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1733 memset(inode, 0, inode_size);
1734 ext2fs_icount_store(ctx->inode_link_info,
1736 e2fsck_write_inode_full(ctx, ino, inode,
1737 inode_size, "pass1");
1740 } else if (quota_inum_is_reserved(fs, ino)) {
1741 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1742 if (ext2fs_has_feature_quota(fs->super) &&
1743 quota_inum_is_super(fs->super, ino)) {
1744 if (!LINUX_S_ISREG(inode->i_mode) &&
1745 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1747 inode->i_mode = LINUX_S_IFREG;
1748 e2fsck_write_inode(ctx, ino, inode,
1752 check_blocks(ctx, &pctx, block_buf, NULL);
1753 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1756 if ((inode->i_links_count ||
1757 inode->i_blocks || inode->i_block[0]) &&
1758 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1760 memset(inode, 0, inode_size);
1761 ext2fs_icount_store(ctx->inode_link_info,
1763 e2fsck_write_inode_full(ctx, ino, inode,
1764 inode_size, "pass1");
1767 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1768 problem_t problem = 0;
1770 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1771 if (ino == EXT2_BOOT_LOADER_INO) {
1772 if (LINUX_S_ISDIR(inode->i_mode))
1773 problem = PR_1_RESERVED_BAD_MODE;
1774 } else if (ino == EXT2_RESIZE_INO) {
1775 if (inode->i_mode &&
1776 !LINUX_S_ISREG(inode->i_mode))
1777 problem = PR_1_RESERVED_BAD_MODE;
1779 if (inode->i_mode != 0)
1780 problem = PR_1_RESERVED_BAD_MODE;
1783 if (fix_problem(ctx, problem, &pctx)) {
1785 e2fsck_write_inode(ctx, ino, inode,
1790 check_blocks(ctx, &pctx, block_buf, NULL);
1791 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1795 if (!inode->i_links_count) {
1796 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1800 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1801 * deleted files. Oops.
1803 * Since all new ext2 implementations get this right,
1804 * we now assume that the case of non-zero
1805 * i_links_count and non-zero dtime means that we
1806 * should keep the file, not delete it.
1809 if (inode->i_dtime) {
1810 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1812 e2fsck_write_inode(ctx, ino, inode, "pass1");
1817 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1818 switch (fs->super->s_creator_os) {
1820 frag = inode->osd2.hurd2.h_i_frag;
1821 fsize = inode->osd2.hurd2.h_i_fsize;
1827 if (inode->i_faddr || frag || fsize ||
1828 (!ext2fs_has_feature_largedir(fs->super) &&
1829 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
1830 mark_inode_bad(ctx, ino);
1831 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1832 !ext2fs_has_feature_64bit(fs->super) &&
1833 inode->osd2.linux2.l_i_file_acl_high != 0)
1834 mark_inode_bad(ctx, ino);
1835 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1836 !ext2fs_has_feature_huge_file(fs->super) &&
1837 (inode->osd2.linux2.l_i_blocks_hi != 0))
1838 mark_inode_bad(ctx, ino);
1839 if (inode->i_flags & EXT2_IMAGIC_FL) {
1841 if (!ctx->inode_imagic_map)
1842 alloc_imagic_map(ctx);
1843 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1846 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1847 inode->i_flags &= ~EXT2_IMAGIC_FL;
1848 e2fsck_write_inode(ctx, ino,
1855 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
1856 check_is_really_dir(ctx, &pctx, block_buf);
1859 * ext2fs_inode_has_valid_blocks2 does not actually look
1860 * at i_block[] values, so not endian-sensitive here.
1862 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1863 LINUX_S_ISLNK(inode->i_mode) &&
1864 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1865 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1866 inode->i_flags &= ~EXT4_EXTENTS_FL;
1867 e2fsck_write_inode(ctx, ino, inode, "pass1");
1871 if (LINUX_S_ISDIR(inode->i_mode)) {
1872 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1873 e2fsck_add_dir_info(ctx, ino, 0);
1874 ctx->fs_directory_count++;
1875 if (inode->i_flags & EXT4_ENCRYPT_FL)
1876 add_encrypted_dir(ctx, ino);
1877 } else if (LINUX_S_ISREG (inode->i_mode)) {
1878 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1879 ctx->fs_regular_count++;
1880 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1881 e2fsck_pass1_check_device_inode(fs, inode)) {
1882 check_extents_inlinedata(ctx, &pctx);
1883 check_immutable(ctx, &pctx);
1884 check_size(ctx, &pctx);
1885 ctx->fs_chardev_count++;
1886 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1887 e2fsck_pass1_check_device_inode(fs, inode)) {
1888 check_extents_inlinedata(ctx, &pctx);
1889 check_immutable(ctx, &pctx);
1890 check_size(ctx, &pctx);
1891 ctx->fs_blockdev_count++;
1892 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1893 e2fsck_pass1_check_symlink(fs, ino, inode,
1895 check_immutable(ctx, &pctx);
1896 ctx->fs_symlinks_count++;
1897 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1898 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1900 } else if (ext2fs_is_fast_symlink(inode)) {
1901 ctx->fs_fast_symlinks_count++;
1902 check_blocks(ctx, &pctx, block_buf,
1904 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1908 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1909 e2fsck_pass1_check_device_inode(fs, inode)) {
1910 check_extents_inlinedata(ctx, &pctx);
1911 check_immutable(ctx, &pctx);
1912 check_size(ctx, &pctx);
1913 ctx->fs_fifo_count++;
1914 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1915 e2fsck_pass1_check_device_inode(fs, inode)) {
1916 check_extents_inlinedata(ctx, &pctx);
1917 check_immutable(ctx, &pctx);
1918 check_size(ctx, &pctx);
1919 ctx->fs_sockets_count++;
1921 mark_inode_bad(ctx, ino);
1922 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1923 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1924 if (inode->i_block[EXT2_IND_BLOCK])
1925 ctx->fs_ind_count++;
1926 if (inode->i_block[EXT2_DIND_BLOCK])
1927 ctx->fs_dind_count++;
1928 if (inode->i_block[EXT2_TIND_BLOCK])
1929 ctx->fs_tind_count++;
1931 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1932 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1933 (inode->i_block[EXT2_IND_BLOCK] ||
1934 inode->i_block[EXT2_DIND_BLOCK] ||
1935 inode->i_block[EXT2_TIND_BLOCK] ||
1936 ext2fs_file_acl_block(fs, inode))) {
1937 struct process_inode_block *itp;
1939 itp = &inodes_to_process[process_inode_count];
1941 itp->ea_ibody_quota = ea_ibody_quota;
1942 if (inode_size < sizeof(struct ext2_inode_large))
1943 memcpy(&itp->inode, inode, inode_size);
1945 memcpy(&itp->inode, inode, sizeof(itp->inode));
1946 process_inode_count++;
1948 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
1950 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1952 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1955 if (process_inode_count >= ctx->process_inode_size) {
1956 process_inodes(ctx, block_buf);
1958 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1962 process_inodes(ctx, block_buf);
1963 ext2fs_close_inode_scan(scan);
1966 reserve_block_for_root_repair(ctx);
1967 reserve_block_for_lnf_repair(ctx);
1970 * If any extended attribute blocks' reference counts need to
1971 * be adjusted, either up (ctx->refcount_extra), or down
1972 * (ctx->refcount), then fix them.
1974 if (ctx->refcount) {
1975 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1976 ea_refcount_free(ctx->refcount);
1979 if (ctx->refcount_extra) {
1980 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1982 ea_refcount_free(ctx->refcount_extra);
1983 ctx->refcount_extra = 0;
1986 if (ctx->ea_block_quota_blocks) {
1987 ea_refcount_free(ctx->ea_block_quota_blocks);
1988 ctx->ea_block_quota_blocks = 0;
1991 if (ctx->ea_block_quota_inodes) {
1992 ea_refcount_free(ctx->ea_block_quota_inodes);
1993 ctx->ea_block_quota_inodes = 0;
1996 if (ctx->invalid_bitmaps)
1997 handle_fs_bad_blocks(ctx);
1999 /* We don't need the block_ea_map any more */
2000 if (ctx->block_ea_map) {
2001 ext2fs_free_block_bitmap(ctx->block_ea_map);
2002 ctx->block_ea_map = 0;
2005 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
2006 clear_problem_context(&pctx);
2007 pctx.errcode = ext2fs_create_resize_inode(fs);
2009 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
2011 ctx->flags |= E2F_FLAG_ABORT;
2016 if (!pctx.errcode) {
2017 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
2019 inode->i_mtime = ctx->now;
2020 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
2023 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
2026 if (ctx->flags & E2F_FLAG_RESTART) {
2028 * Only the master copy of the superblock and block
2029 * group descriptors are going to be written during a
2030 * restart, so set the superblock to be used to be the
2031 * master superblock.
2033 ctx->use_superblock = 0;
2038 if (ctx->block_dup_map) {
2039 if (ctx->options & E2F_OPT_PREEN) {
2040 clear_problem_context(&pctx);
2041 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2043 e2fsck_pass1_dupblocks(ctx, block_buf);
2045 ctx->flags |= E2F_FLAG_ALLOC_OK;
2046 ext2fs_free_mem(&inodes_to_process);
2048 e2fsck_use_inode_shortcuts(ctx, 0);
2051 ext2fs_close_inode_scan(scan);
2053 ext2fs_free_mem(&block_buf);
2055 ext2fs_free_mem(&inode);
2058 * The l+f inode may have been cleared, so zap it now and
2059 * later passes will recalculate it if necessary
2061 ctx->lost_and_found = 0;
2063 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2064 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2066 ctx->invalid_bitmaps++;
2068 #undef FINISH_INODE_LOOP
2071 * When the inode_scan routines call this callback at the end of the
2072 * glock group, call process_inodes.
2074 static errcode_t scan_callback(ext2_filsys fs,
2075 ext2_inode_scan scan EXT2FS_ATTR((unused)),
2076 dgrp_t group, void * priv_data)
2078 struct scan_callback_struct *scan_struct;
2081 scan_struct = (struct scan_callback_struct *) priv_data;
2082 ctx = scan_struct->ctx;
2084 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
2087 if ((ctx->progress)(ctx, 1, group+1,
2088 ctx->fs->group_desc_count))
2089 return EXT2_ET_CANCEL_REQUESTED;
2095 * Process the inodes in the "inodes to process" list.
2097 static void process_inodes(e2fsck_t ctx, char *block_buf)
2100 struct ext2_inode *old_stashed_inode;
2101 ext2_ino_t old_stashed_ino;
2102 const char *old_operation;
2104 struct problem_context pctx;
2107 printf("begin process_inodes: ");
2109 if (process_inode_count == 0)
2111 old_operation = ehandler_operation(0);
2112 old_stashed_inode = ctx->stashed_inode;
2113 old_stashed_ino = ctx->stashed_ino;
2114 qsort(inodes_to_process, process_inode_count,
2115 sizeof(struct process_inode_block), process_inode_cmp);
2116 clear_problem_context(&pctx);
2117 for (i=0; i < process_inode_count; i++) {
2118 pctx.inode = ctx->stashed_inode =
2119 (struct ext2_inode *) &inodes_to_process[i].inode;
2120 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2123 printf("%u ", pctx.ino);
2125 sprintf(buf, _("reading indirect blocks of inode %u"),
2127 ehandler_operation(buf);
2128 check_blocks(ctx, &pctx, block_buf,
2129 &inodes_to_process[i].ea_ibody_quota);
2130 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2133 ctx->stashed_inode = old_stashed_inode;
2134 ctx->stashed_ino = old_stashed_ino;
2135 process_inode_count = 0;
2137 printf("end process inodes\n");
2139 ehandler_operation(old_operation);
2142 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2144 const struct process_inode_block *ib_a =
2145 (const struct process_inode_block *) a;
2146 const struct process_inode_block *ib_b =
2147 (const struct process_inode_block *) b;
2150 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2151 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2154 * We only call process_inodes() for non-extent
2155 * inodes, so it's OK to pass NULL to
2156 * ext2fs_file_acl_block() here.
2158 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2159 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2161 ret = ib_a->ino - ib_b->ino;
2166 * Mark an inode as being bad in some what
2168 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2170 struct problem_context pctx;
2172 if (!ctx->inode_bad_map) {
2173 clear_problem_context(&pctx);
2175 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2176 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
2177 "inode_bad_map", &ctx->inode_bad_map);
2180 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2181 /* Should never get here */
2182 ctx->flags |= E2F_FLAG_ABORT;
2186 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2189 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino)
2191 struct problem_context pctx;
2193 if (!ctx->encrypted_dirs) {
2194 pctx.errcode = ext2fs_u32_list_create(&ctx->encrypted_dirs, 0);
2198 pctx.errcode = ext2fs_u32_list_add(ctx->encrypted_dirs, ino);
2199 if (pctx.errcode == 0)
2202 fix_problem(ctx, PR_1_ALLOCATE_ENCRYPTED_DIRLIST, &pctx);
2203 /* Should never get here */
2204 ctx->flags |= E2F_FLAG_ABORT;
2208 * This procedure will allocate the inode "bb" (badblock) map table
2210 static void alloc_bb_map(e2fsck_t ctx)
2212 struct problem_context pctx;
2214 clear_problem_context(&pctx);
2215 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2216 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2217 "inode_bb_map", &ctx->inode_bb_map);
2220 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2221 /* Should never get here */
2222 ctx->flags |= E2F_FLAG_ABORT;
2228 * This procedure will allocate the inode imagic table
2230 static void alloc_imagic_map(e2fsck_t ctx)
2232 struct problem_context pctx;
2234 clear_problem_context(&pctx);
2235 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2236 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
2237 "inode_imagic_map", &ctx->inode_imagic_map);
2240 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2241 /* Should never get here */
2242 ctx->flags |= E2F_FLAG_ABORT;
2248 * Marks a block as in use, setting the dup_map if it's been set
2249 * already. Called by process_block and process_bad_block.
2251 * WARNING: Assumes checks have already been done to make sure block
2252 * is valid. This is true in both process_block and process_bad_block.
2254 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
2256 struct problem_context pctx;
2258 clear_problem_context(&pctx);
2260 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
2261 if (!ctx->block_dup_map) {
2262 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
2263 _("multiply claimed block map"),
2264 EXT2FS_BMAP64_RBTREE, "block_dup_map",
2265 &ctx->block_dup_map);
2268 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
2270 /* Should never get here */
2271 ctx->flags |= E2F_FLAG_ABORT;
2275 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
2277 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
2282 * When cluster size is greater than one block, it is caller's responsibility
2283 * to make sure block parameter starts at a cluster boundary.
2285 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
2288 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
2289 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
2292 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
2293 mark_block_used(ctx, block + i);
2298 * Adjust the extended attribute block's reference counts at the end
2299 * of pass 1, either by subtracting out references for EA blocks that
2300 * are still referenced in ctx->refcount, or by adding references for
2301 * EA blocks that had extra references as accounted for in
2302 * ctx->refcount_extra.
2304 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
2305 char *block_buf, int adjust_sign)
2307 struct ext2_ext_attr_header *header;
2308 struct problem_context pctx;
2309 ext2_filsys fs = ctx->fs;
2314 clear_problem_context(&pctx);
2316 ea_refcount_intr_begin(refcount);
2318 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
2321 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
2324 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
2327 header = (struct ext2_ext_attr_header *) block_buf;
2328 pctx.blkcount = header->h_refcount;
2329 should_be = header->h_refcount + adjust_sign * (int)count;
2330 pctx.num = should_be;
2331 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
2332 header->h_refcount = should_be;
2333 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
2337 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
2346 * Handle processing the extended attribute blocks
2348 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
2349 char *block_buf, struct ea_quota *ea_block_quota)
2351 ext2_filsys fs = ctx->fs;
2352 ext2_ino_t ino = pctx->ino;
2353 struct ext2_inode *inode = pctx->inode;
2356 struct ext2_ext_attr_header *header;
2357 struct ext2_ext_attr_entry *first, *entry;
2358 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
2359 __u64 quota_inodes = 0;
2360 region_t region = 0;
2361 int failed_csum = 0;
2363 ea_block_quota->blocks = 0;
2364 ea_block_quota->inodes = 0;
2366 blk = ext2fs_file_acl_block(fs, inode);
2371 * If the Extended attribute flag isn't set, then a non-zero
2372 * file acl means that the inode is corrupted.
2374 * Or if the extended attribute block is an invalid block,
2375 * then the inode is also corrupted.
2377 if (!ext2fs_has_feature_xattr(fs->super) ||
2378 (blk < fs->super->s_first_data_block) ||
2379 (blk >= ext2fs_blocks_count(fs->super))) {
2380 mark_inode_bad(ctx, ino);
2384 /* If ea bitmap hasn't been allocated, create it */
2385 if (!ctx->block_ea_map) {
2386 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
2387 _("ext attr block map"),
2388 EXT2FS_BMAP64_RBTREE, "block_ea_map",
2389 &ctx->block_ea_map);
2390 if (pctx->errcode) {
2392 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
2393 ctx->flags |= E2F_FLAG_ABORT;
2398 /* Create the EA refcount structure if necessary */
2399 if (!ctx->refcount) {
2400 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
2401 if (pctx->errcode) {
2403 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2404 ctx->flags |= E2F_FLAG_ABORT;
2410 /* Debugging text */
2411 printf("Inode %u has EA block %u\n", ino, blk);
2414 /* Have we seen this EA block before? */
2415 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
2416 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
2417 ea_block_quota->inodes = 0;
2419 if (ctx->ea_block_quota_blocks) {
2420 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
2423 ea_block_quota->blocks = quota_blocks;
2426 if (ctx->ea_block_quota_inodes)
2427 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
2428 &ea_block_quota->inodes);
2430 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
2432 /* Ooops, this EA was referenced more than it stated */
2433 if (!ctx->refcount_extra) {
2434 pctx->errcode = ea_refcount_create(0,
2435 &ctx->refcount_extra);
2436 if (pctx->errcode) {
2438 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2439 ctx->flags |= E2F_FLAG_ABORT;
2443 ea_refcount_increment(ctx->refcount_extra, blk, 0);
2448 * OK, we haven't seen this EA block yet. So we need to
2452 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
2453 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
2456 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
2459 if (pctx->errcode &&
2460 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
2464 header = (struct ext2_ext_attr_header *) block_buf;
2465 pctx->blk = ext2fs_file_acl_block(fs, inode);
2466 if (((ctx->ext_attr_ver == 1) &&
2467 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
2468 ((ctx->ext_attr_ver == 2) &&
2469 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
2470 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
2474 if (header->h_blocks != 1) {
2475 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
2479 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
2482 region = region_create(0, fs->blocksize);
2484 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
2485 ctx->flags |= E2F_FLAG_ABORT;
2488 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
2489 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2493 first = (struct ext2_ext_attr_entry *)(header+1);
2494 end = block_buf + fs->blocksize;
2496 while ((char *)entry < end && *(__u32 *)entry) {
2499 if (region_allocate(region, (char *)entry - (char *)header,
2500 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
2501 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2505 if ((ctx->ext_attr_ver == 1 &&
2506 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
2507 (ctx->ext_attr_ver == 2 &&
2508 entry->e_name_index == 0)) {
2509 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
2513 if (entry->e_value_inum == 0) {
2514 if (entry->e_value_offs + entry->e_value_size >
2516 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2520 if (entry->e_value_size &&
2521 region_allocate(region, entry->e_value_offs,
2522 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
2523 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
2528 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
2529 entry->e_value_offs);
2531 if (entry->e_hash != hash) {
2532 pctx->num = entry->e_hash;
2533 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
2535 entry->e_hash = hash;
2539 blk64_t entry_quota_blocks;
2541 problem = check_large_ea_inode(ctx, entry, pctx,
2542 &entry_quota_blocks);
2543 if (problem && fix_problem(ctx, problem, pctx))
2546 quota_blocks += entry_quota_blocks;
2550 entry = EXT2_EXT_ATTR_NEXT(entry);
2552 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
2553 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2556 region_free(region);
2559 * We only get here if there was no other errors that were fixed.
2560 * If there was a checksum fail, ask to correct it.
2563 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
2564 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
2570 if (quota_blocks != EXT2FS_C2B(fs, 1)) {
2571 if (!ctx->ea_block_quota_blocks) {
2572 pctx->errcode = ea_refcount_create(0,
2573 &ctx->ea_block_quota_blocks);
2574 if (pctx->errcode) {
2579 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
2584 if (!ctx->ea_block_quota_inodes) {
2585 pctx->errcode = ea_refcount_create(0,
2586 &ctx->ea_block_quota_inodes);
2587 if (pctx->errcode) {
2590 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2591 ctx->flags |= E2F_FLAG_ABORT;
2596 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
2599 ea_block_quota->blocks = quota_blocks;
2600 ea_block_quota->inodes = quota_inodes;
2602 inc_ea_inode_refs(ctx, pctx, first, end);
2603 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
2604 mark_block_used(ctx, blk);
2605 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
2610 region_free(region);
2611 ext2fs_file_acl_block_set(fs, inode, 0);
2612 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
2616 /* Returns 1 if bad htree, 0 if OK */
2617 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
2618 ext2_ino_t ino, struct ext2_inode *inode,
2621 struct ext2_dx_root_info *root;
2622 ext2_filsys fs = ctx->fs;
2626 if ((!LINUX_S_ISDIR(inode->i_mode) &&
2627 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
2628 (!ext2fs_has_feature_dir_index(fs->super) &&
2629 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
2632 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
2634 if ((pctx->errcode) ||
2636 (blk < fs->super->s_first_data_block) ||
2637 (blk >= ext2fs_blocks_count(fs->super))) {
2638 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2644 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
2645 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2648 /* XXX should check that beginning matches a directory */
2649 root = (struct ext2_dx_root_info *) (block_buf + 24);
2651 if ((root->reserved_zero || root->info_length < 8) &&
2652 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2655 pctx->num = root->hash_version;
2656 if ((root->hash_version != EXT2_HASH_LEGACY) &&
2657 (root->hash_version != EXT2_HASH_HALF_MD4) &&
2658 (root->hash_version != EXT2_HASH_TEA) &&
2659 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
2662 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
2663 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
2666 pctx->num = root->indirect_levels;
2667 if ((root->indirect_levels > ext2_dir_htree_level(fs)) &&
2668 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
2674 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
2675 struct ext2_inode *inode, int restart_flag,
2679 inode->i_links_count = 0;
2680 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
2681 inode->i_dtime = ctx->now;
2684 * If a special inode has such rotten block mappings that we
2685 * want to clear the whole inode, be sure to actually zap
2686 * the block maps because i_links_count isn't checked for
2687 * special inodes, and we'll end up right back here the next
2690 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
2691 memset(inode->i_block, 0, sizeof(inode->i_block));
2693 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
2694 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
2695 if (ctx->inode_reg_map)
2696 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
2697 if (ctx->inode_bad_map)
2698 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
2701 * If the inode was partially accounted for before processing
2702 * was aborted, we need to restart the pass 1 scan.
2704 ctx->flags |= restart_flag;
2706 if (ino == EXT2_BAD_INO)
2707 memset(inode, 0, sizeof(struct ext2_inode));
2709 e2fsck_write_inode(ctx, ino, inode, source);
2713 * Use the multiple-blocks reclamation code to fix alignment problems in
2714 * a bigalloc filesystem. We want a logical cluster to map to *only* one
2715 * physical cluster, and we want the block offsets within that cluster to
2718 static int has_unaligned_cluster_map(e2fsck_t ctx,
2719 blk64_t last_pblk, blk64_t last_lblk,
2720 blk64_t pblk, blk64_t lblk)
2722 blk64_t cluster_mask;
2724 if (!ctx->fs->cluster_ratio_bits)
2726 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
2729 * If the block in the logical cluster doesn't align with the block in
2730 * the physical cluster...
2732 if ((lblk & cluster_mask) != (pblk & cluster_mask))
2736 * If we cross a physical cluster boundary within a logical cluster...
2738 if (last_pblk && (lblk & cluster_mask) != 0 &&
2739 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
2740 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
2746 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
2747 struct process_block_struct *pb,
2748 blk64_t start_block, blk64_t end_block,
2750 ext2_extent_handle_t ehandle,
2753 struct ext2fs_extent extent;
2754 blk64_t blk, last_lblk;
2756 int is_dir, is_leaf;
2758 struct ext2_extent_info info;
2759 int failed_csum = 0;
2761 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
2764 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
2767 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
2768 !pb->eti.force_rebuild) {
2769 struct extent_tree_level *etl;
2771 etl = pb->eti.ext_info + info.curr_level;
2772 etl->num_extents += info.num_entries;
2773 etl->max_extents += info.max_entries;
2775 * Implementation wart: Splitting extent blocks when appending
2776 * will leave the old block with one free entry. Therefore
2777 * unless the node is totally full, pretend that a non-root
2778 * extent block can hold one fewer entry than it actually does,
2779 * so that we don't repeatedly rebuild the extent tree.
2781 if (info.curr_level && info.num_entries < info.max_entries)
2785 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
2787 while ((pctx->errcode == 0 ||
2788 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
2789 info.num_entries-- > 0) {
2790 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
2791 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
2792 last_lblk = extent.e_lblk + extent.e_len - 1;
2795 pctx->blk = extent.e_pblk;
2796 pctx->blk2 = extent.e_lblk;
2797 pctx->num = extent.e_len;
2798 pctx->blkcount = extent.e_lblk + extent.e_len;
2800 if (extent.e_pblk == 0 ||
2801 extent.e_pblk < ctx->fs->super->s_first_data_block ||
2802 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
2803 problem = PR_1_EXTENT_BAD_START_BLK;
2804 else if (extent.e_lblk < start_block)
2805 problem = PR_1_OUT_OF_ORDER_EXTENTS;
2806 else if ((end_block && last_lblk > end_block) &&
2807 (!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT &&
2808 last_lblk > eof_block)))
2809 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
2810 else if (is_leaf && extent.e_len == 0)
2811 problem = PR_1_EXTENT_LENGTH_ZERO;
2813 (extent.e_pblk + extent.e_len) >
2814 ext2fs_blocks_count(ctx->fs->super))
2815 problem = PR_1_EXTENT_ENDS_BEYOND;
2816 else if (is_leaf && is_dir &&
2817 ((extent.e_lblk + extent.e_len) >
2818 (1U << (21 - ctx->fs->super->s_log_block_size))))
2819 problem = PR_1_TOOBIG_DIR;
2821 if (is_leaf && problem == 0 && extent.e_len > 0) {
2823 printf("extent_region(ino=%u, expect=%llu, "
2824 "lblk=%llu, len=%u)\n",
2825 pb->ino, pb->next_lblock,
2826 extent.e_lblk, extent.e_len);
2828 if (extent.e_lblk < pb->next_lblock)
2829 problem = PR_1_EXTENT_COLLISION;
2830 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
2831 pb->next_lblock = extent.e_lblk + extent.e_len;
2835 * Uninitialized blocks in a directory? Clear the flag and
2836 * we'll interpret the blocks later.
2838 if (try_repairs && is_dir && problem == 0 &&
2839 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
2840 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
2841 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
2842 pb->inode_modified = 1;
2843 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
2850 if (try_repairs && problem) {
2852 if (fix_problem(ctx, problem, pctx)) {
2853 if (ctx->invalid_bitmaps) {
2855 * If fsck knows the bitmaps are bad,
2856 * skip to the next extent and
2857 * try to clear this extent again
2858 * after fixing the bitmaps, by
2861 pctx->errcode = ext2fs_extent_get(
2863 EXT2_EXTENT_NEXT_SIB,
2865 ctx->flags |= E2F_FLAG_RESTART_LATER;
2866 if (pctx->errcode ==
2867 EXT2_ET_NO_CURRENT_NODE) {
2873 e2fsck_read_bitmaps(ctx);
2874 pb->inode_modified = 1;
2876 ext2fs_extent_delete(ehandle, 0);
2877 if (pctx->errcode) {
2878 pctx->str = "ext2fs_extent_delete";
2881 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2882 if (pctx->errcode &&
2883 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
2884 pctx->str = "ext2fs_extent_fix_parents";
2887 pctx->errcode = ext2fs_extent_get(ehandle,
2888 EXT2_EXTENT_CURRENT,
2890 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
2901 blk64_t lblk = extent.e_lblk;
2902 int next_try_repairs = 1;
2904 blk = extent.e_pblk;
2907 * If this lower extent block collides with critical
2908 * metadata, don't try to repair the damage. Pass 1b
2909 * will reallocate the block; then we can try again.
2911 if (pb->ino != EXT2_RESIZE_INO &&
2912 extent.e_pblk < ctx->fs->super->s_blocks_count &&
2913 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
2915 next_try_repairs = 0;
2918 PR_1_CRITICAL_METADATA_COLLISION,
2920 if ((ctx->options & E2F_OPT_NO) == 0)
2921 ctx->flags |= E2F_FLAG_RESTART_LATER;
2923 pctx->errcode = ext2fs_extent_get(ehandle,
2924 EXT2_EXTENT_DOWN, &extent);
2925 if (pctx->errcode &&
2926 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
2927 pctx->str = "EXT2_EXTENT_DOWN";
2928 problem = PR_1_EXTENT_HEADER_INVALID;
2929 if (!next_try_repairs)
2931 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
2932 goto report_problem;
2935 /* The next extent should match this index's logical start */
2936 if (extent.e_lblk != lblk) {
2937 struct ext2_extent_info e_info;
2939 ext2fs_extent_get_info(ehandle, &e_info);
2941 pctx->blk2 = extent.e_lblk;
2942 pctx->num = e_info.curr_level - 1;
2943 problem = PR_1_EXTENT_INDEX_START_INVALID;
2944 if (fix_problem(ctx, problem, pctx)) {
2945 pb->inode_modified = 1;
2947 ext2fs_extent_fix_parents(ehandle);
2948 if (pctx->errcode) {
2949 pctx->str = "ext2fs_extent_fix_parents";
2954 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
2955 last_lblk, eof_block, ehandle,
2959 pctx->errcode = ext2fs_extent_get(ehandle,
2960 EXT2_EXTENT_UP, &extent);
2961 if (pctx->errcode) {
2962 pctx->str = "EXT2_EXTENT_UP";
2965 mark_block_used(ctx, blk);
2970 if ((pb->previous_block != 0) &&
2971 (pb->previous_block+1 != extent.e_pblk)) {
2972 if (ctx->options & E2F_OPT_FRAGCHECK) {
2977 else if (pb->is_reg)
2980 printf(("%6lu(%c): expecting %6lu "
2982 "phys %6lu log %lu len %lu\n"),
2983 (unsigned long) pctx->ino, type,
2984 (unsigned long) pb->previous_block+1,
2985 (unsigned long) extent.e_pblk,
2986 (unsigned long) extent.e_lblk,
2987 (unsigned long) extent.e_len);
2992 * If we notice a gap in the logical block mappings of an
2993 * extent-mapped directory, offer to close the hole by
2994 * moving the logical block down, otherwise we'll go mad in
2995 * pass 3 allocating empty directory blocks to fill the hole.
2997 if (try_repairs && is_dir &&
2998 pb->last_block + 1 < extent.e_lblk) {
3001 new_lblk = pb->last_block + 1;
3002 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
3003 new_lblk = ((new_lblk +
3004 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
3005 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
3007 EXT2FS_CLUSTER_MASK(ctx->fs));
3008 pctx->blk = extent.e_lblk;
3009 pctx->blk2 = new_lblk;
3010 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
3011 extent.e_lblk = new_lblk;
3012 pb->inode_modified = 1;
3013 pctx->errcode = ext2fs_extent_replace(ehandle,
3015 if (pctx->errcode) {
3019 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3021 goto failed_add_dir_block;
3022 pctx->errcode = ext2fs_extent_goto(ehandle,
3025 goto failed_add_dir_block;
3026 last_lblk = extent.e_lblk + extent.e_len - 1;
3032 while (++pb->last_db_block <
3033 (e2_blkcnt_t) extent.e_lblk) {
3034 pctx->errcode = ext2fs_add_dir_block2(
3038 if (pctx->errcode) {
3040 pctx->num = pb->last_db_block;
3041 goto failed_add_dir_block;
3045 for (i = 0; i < extent.e_len; i++) {
3046 pctx->errcode = ext2fs_add_dir_block2(
3051 if (pctx->errcode) {
3052 pctx->blk = extent.e_pblk + i;
3053 pctx->num = extent.e_lblk + i;
3054 failed_add_dir_block:
3055 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3056 /* Should never get here */
3057 ctx->flags |= E2F_FLAG_ABORT;
3061 if (extent.e_len > 0)
3062 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
3064 if (has_unaligned_cluster_map(ctx, pb->previous_block,
3068 for (i = 0; i < extent.e_len; i++) {
3069 pctx->blk = extent.e_lblk + i;
3070 pctx->blk2 = extent.e_pblk + i;
3071 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3072 mark_block_used(ctx, extent.e_pblk + i);
3073 mark_block_used(ctx, extent.e_pblk + i);
3078 * Check whether first cluster got marked in previous iteration.
3080 if (ctx->fs->cluster_ratio_bits &&
3081 pb->previous_block &&
3082 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
3083 EXT2FS_B2C(ctx->fs, pb->previous_block)))
3084 /* Set blk to the beginning of next cluster. */
3087 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
3089 /* Set blk to the beginning of current cluster. */
3090 blk = EXT2FS_C2B(ctx->fs,
3091 EXT2FS_B2C(ctx->fs, extent.e_pblk));
3093 if (blk < extent.e_pblk + extent.e_len) {
3094 mark_blocks_used(ctx, blk,
3095 extent.e_pblk + extent.e_len - blk);
3096 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
3097 EXT2FS_CLUSTER_RATIO(ctx->fs));
3098 pb->num_blocks += n;
3100 pb->last_block = extent.e_lblk + extent.e_len - 1;
3101 pb->previous_block = extent.e_pblk + extent.e_len - 1;
3102 start_block = pb->last_block = last_lblk;
3103 if (is_leaf && !is_dir &&
3104 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
3105 pb->last_init_lblock = last_lblk;
3107 pctx->errcode = ext2fs_extent_get(ehandle,
3108 EXT2_EXTENT_NEXT_SIB,
3112 /* Failed csum but passes checks? Ask to fix checksum. */
3114 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
3115 pb->inode_modified = 1;
3116 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
3121 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
3125 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
3126 struct process_block_struct *pb)
3128 struct ext2_extent_info info;
3129 struct ext2_inode *inode = pctx->inode;
3130 ext2_extent_handle_t ehandle;
3131 ext2_filsys fs = ctx->fs;
3132 ext2_ino_t ino = pctx->ino;
3135 struct ext3_extent_header *eh;
3137 /* Check for a proper extent header... */
3138 eh = (struct ext3_extent_header *) &inode->i_block[0];
3139 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
3141 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
3142 e2fsck_clear_inode(ctx, ino, inode, 0,
3143 "check_blocks_extents");
3148 /* ...since this function doesn't fail if i_block is zeroed. */
3149 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
3150 if (pctx->errcode) {
3151 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
3152 e2fsck_clear_inode(ctx, ino, inode, 0,
3153 "check_blocks_extents");
3158 retval = ext2fs_extent_get_info(ehandle, &info);
3160 int max_depth = info.max_depth;
3162 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
3163 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
3164 ctx->extent_depth_count[max_depth]++;
3167 /* Check maximum extent depth */
3168 pctx->blk = info.max_depth;
3169 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
3170 if (pctx->blk2 < pctx->blk &&
3171 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
3172 pb->eti.force_rebuild = 1;
3174 /* Can we collect extent tree level stats? */
3175 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
3176 if (pctx->blk2 > pctx->blk)
3177 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
3178 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
3179 pb->eti.ino = pb->ino;
3181 pb->next_lblock = 0;
3183 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
3184 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
3185 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
3186 if (pctx->errcode &&
3187 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
3189 inode->i_blocks = 0;
3190 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3191 "check_blocks_extents");
3194 ext2fs_extent_free(ehandle);
3196 /* Rebuild unless it's a dir and we're rehashing it */
3197 if (LINUX_S_ISDIR(inode->i_mode) &&
3198 e2fsck_dir_will_be_rehashed(ctx, ino))
3201 if (ctx->options & E2F_OPT_CONVERT_BMAP)
3202 e2fsck_rebuild_extents_later(ctx, ino);
3204 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
3208 * In fact we don't need to check blocks for an inode with inline data
3209 * because this inode doesn't have any blocks. In this function all
3210 * we need to do is add this inode into dblist when it is a directory.
3212 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
3213 struct process_block_struct *pb)
3216 size_t inline_data_size = 0;
3223 /* Process the dirents in i_block[] as the "first" block. */
3224 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
3228 /* Process the dirents in the EA as a "second" block. */
3229 flags = ctx->fs->flags;
3230 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3231 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
3233 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3234 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3235 if (pctx->errcode) {
3240 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
3243 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
3251 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3252 ctx->flags |= E2F_FLAG_ABORT;
3256 * This subroutine is called on each inode to account for all of the
3257 * blocks used by that inode.
3259 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
3260 char *block_buf, const struct ea_quota *ea_ibody_quota)
3262 ext2_filsys fs = ctx->fs;
3263 struct process_block_struct pb;
3264 ext2_ino_t ino = pctx->ino;
3265 struct ext2_inode *inode = pctx->inode;
3266 unsigned bad_size = 0;
3267 int dirty_inode = 0;
3271 struct ea_quota ea_block_quota;
3274 pb.num_blocks = EXT2FS_B2C(ctx->fs,
3275 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
3277 pb.last_init_lblock = -1;
3278 pb.last_db_block = -1;
3279 pb.num_illegal_blocks = 0;
3280 pb.suppress = 0; pb.clear = 0;
3283 pb.previous_block = 0;
3284 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
3285 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
3286 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
3290 pb.inode_modified = 0;
3291 pb.eti.force_rebuild = 0;
3295 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
3296 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
3298 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
3299 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3301 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
3304 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
3305 check_blocks_inline_data(ctx, pctx, &pb);
3306 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
3307 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
3308 check_blocks_extents(ctx, pctx, &pb);
3312 * If we've modified the inode, write it out before
3313 * iterate() tries to use it.
3316 e2fsck_write_inode(ctx, ino, inode,
3321 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3322 pctx->errcode = ext2fs_block_iterate3(fs, ino,
3323 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
3324 block_buf, process_block, &pb);
3326 * We do not have uninitialized extents in non extent
3329 pb.last_init_lblock = pb.last_block;
3331 * If iterate() changed a block mapping, we have to
3332 * re-read the inode. If we decide to clear the
3333 * inode after clearing some stuff, we'll re-write the
3334 * bad mappings into the inode!
3336 if (pb.inode_modified)
3337 e2fsck_read_inode(ctx, ino, inode,
3339 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3340 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3342 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
3344 printf("bmap rebuild ino=%d\n", ino);
3346 if (!LINUX_S_ISDIR(inode->i_mode) ||
3347 !e2fsck_dir_will_be_rehashed(ctx, ino))
3348 e2fsck_rebuild_extents_later(ctx, ino);
3352 end_problem_latch(ctx, PR_LATCH_BLOCK);
3353 end_problem_latch(ctx, PR_LATCH_TOOBIG);
3354 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3357 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
3359 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
3360 if (LINUX_S_ISDIR(inode->i_mode))
3361 ctx->fs_fragmented_dir++;
3363 ctx->fs_fragmented++;
3367 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3372 if (inode->i_flags & EXT2_INDEX_FL) {
3373 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
3374 inode->i_flags &= ~EXT2_INDEX_FL;
3377 e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
3381 if (!pb.num_blocks && pb.is_dir &&
3382 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
3383 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
3384 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
3385 ctx->fs_directory_count--;
3390 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
3391 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
3392 !(inode->i_flags & EXT4_EA_INODE_FL)) {
3393 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
3395 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
3396 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
3397 ino, (ea_ibody_quota ?
3398 ea_ibody_quota->inodes : 0) +
3399 ea_block_quota.inodes + 1);
3402 if (!ext2fs_has_feature_huge_file(fs->super) ||
3403 !(inode->i_flags & EXT4_HUGE_FILE_FL))
3404 pb.num_blocks *= (fs->blocksize / 512);
3405 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
3407 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
3408 ino, inode->i_size, pb.last_block, ext2fs_inode_i_blocks(fs, inode),
3412 unsigned nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
3413 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
3418 flags = ctx->fs->flags;
3419 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3420 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
3422 ctx->fs->flags = (flags &
3423 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3425 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3426 if (err || sz != inode->i_size) {
3430 } else if (inode->i_size & (fs->blocksize - 1))
3432 else if (nblock > (pb.last_block + 1))
3434 else if (nblock < (pb.last_block + 1)) {
3435 if (((pb.last_block + 1) - nblock) >
3436 fs->super->s_prealloc_dir_blocks)
3440 e2_blkcnt_t blkpg = ctx->blocks_per_page;
3442 size = EXT2_I_SIZE(inode);
3443 if ((pb.last_init_lblock >= 0) &&
3444 /* allow allocated blocks to end of PAGE_SIZE */
3445 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
3446 (pb.last_init_lblock / blkpg * blkpg != pb.last_init_lblock ||
3447 size < (__u64)(pb.last_init_lblock & ~(blkpg-1)) *
3450 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3451 size > ext2_max_sizes[fs->super->s_log_block_size])
3452 /* too big for a direct/indirect-mapped file */
3454 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3456 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
3457 /* too big for an extent-based file - 32bit ee_block */
3460 /* i_size for symlinks is checked elsewhere */
3461 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
3462 /* Did inline_data set pctx->num earlier? */
3464 pctx->num = (pb.last_block + 1) * fs->blocksize;
3465 pctx->group = bad_size;
3466 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
3467 if (LINUX_S_ISDIR(inode->i_mode))
3468 pctx->num &= 0xFFFFFFFFULL;
3469 ext2fs_inode_size_set(fs, inode, pctx->num);
3470 if (EXT2_I_SIZE(inode) == 0 &&
3471 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
3472 memset(inode->i_block, 0,
3473 sizeof(inode->i_block));
3474 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
3480 if (LINUX_S_ISREG(inode->i_mode) &&
3481 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3483 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
3484 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
3485 (ext2fs_has_feature_huge_file(fs->super) &&
3486 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
3487 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
3488 pctx->num = pb.num_blocks;
3489 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
3490 inode->i_blocks = pb.num_blocks;
3491 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
3498 * The kernel gets mad if we ask it to allocate bigalloc clusters to
3499 * a block mapped file, so rebuild it as an extent file. We can skip
3500 * symlinks because they're never rewritten.
3502 if (ext2fs_has_feature_bigalloc(fs->super) &&
3503 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
3504 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
3505 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
3506 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
3507 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
3508 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
3513 if (ctx->dirs_to_hash && pb.is_dir &&
3514 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
3515 !(inode->i_flags & EXT2_INDEX_FL) &&
3516 ((inode->i_size / fs->blocksize) >= 3))
3517 e2fsck_rehash_dir_later(ctx, ino);
3521 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
3526 * Helper function called by process block when an illegal block is
3527 * found. It returns a description about why the block is illegal
3529 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
3533 static char problem[80];
3535 super = fs->super->s_first_data_block;
3536 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
3537 if (block < super) {
3538 sprintf(problem, "< FIRSTBLOCK (%u)", super);
3540 } else if (block >= ext2fs_blocks_count(fs->super)) {
3541 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
3544 for (i = 0; i < fs->group_desc_count; i++) {
3545 if (block == super) {
3546 sprintf(problem, "is the superblock in group %d", i);
3549 if (block > super &&
3550 block <= (super + fs->desc_blocks)) {
3551 sprintf(problem, "is in the group descriptors "
3555 if (block == ext2fs_block_bitmap_loc(fs, i)) {
3556 sprintf(problem, "is the block bitmap of group %d", i);
3559 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
3560 sprintf(problem, "is the inode bitmap of group %d", i);
3563 if (block >= ext2fs_inode_table_loc(fs, i) &&
3564 (block < ext2fs_inode_table_loc(fs, i)
3565 + fs->inode_blocks_per_group)) {
3566 sprintf(problem, "is in the inode table of group %d",
3570 super += fs->super->s_blocks_per_group;
3577 * This is a helper function for check_blocks().
3579 static int process_block(ext2_filsys fs,
3581 e2_blkcnt_t blockcnt,
3582 blk64_t ref_block EXT2FS_ATTR((unused)),
3583 int ref_offset EXT2FS_ATTR((unused)),
3586 struct process_block_struct *p;
3587 struct problem_context *pctx;
3588 blk64_t blk = *block_nr;
3590 problem_t problem = 0;
3593 p = (struct process_block_struct *) priv_data;
3598 * For a directory, add logical block zero for processing even if it's
3599 * not mapped or we'll be perennially stuck with broken "." and ".."
3602 if (p->is_dir && blockcnt == 0 && blk == 0) {
3603 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
3604 if (pctx->errcode) {
3606 pctx->num = blockcnt;
3607 goto failed_add_dir_block;
3616 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
3621 * Simplistic fragmentation check. We merely require that the
3622 * file be contiguous. (Which can never be true for really
3623 * big files that are greater than a block group.)
3625 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
3626 if (p->previous_block+1 != blk) {
3627 if (ctx->options & E2F_OPT_FRAGCHECK) {
3635 printf(_("%6lu(%c): expecting %6lu "
3636 "got phys %6lu (blkcnt %lld)\n"),
3637 (unsigned long) pctx->ino, type,
3638 (unsigned long) p->previous_block+1,
3639 (unsigned long) blk,
3646 if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
3647 problem = PR_1_TOOBIG_DIR;
3648 if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
3649 problem = PR_1_TOOBIG_REG;
3650 if (!p->is_dir && !p->is_reg && blockcnt > 0)
3651 problem = PR_1_TOOBIG_SYMLINK;
3653 if (blk < fs->super->s_first_data_block ||
3654 blk >= ext2fs_blocks_count(fs->super))
3655 problem = PR_1_ILLEGAL_BLOCK_NUM;
3658 * If this IND/DIND/TIND block is squatting atop some critical metadata
3659 * (group descriptors, superblock, bitmap, inode table), any write to
3660 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
3661 * fix that and restart fsck.
3664 p->ino != EXT2_RESIZE_INO &&
3665 blk < ctx->fs->super->s_blocks_count &&
3666 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
3668 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
3669 if ((ctx->options & E2F_OPT_NO) == 0)
3670 ctx->flags |= E2F_FLAG_RESTART_LATER;
3674 p->num_illegal_blocks++;
3676 * A bit of subterfuge here -- we're trying to fix a block
3677 * mapping, but the IND/DIND/TIND block could have collided
3678 * with some critical metadata. So, fix the in-core mapping so
3679 * iterate won't go insane, but return 0 instead of
3680 * BLOCK_CHANGED so that it won't write the remapping out to
3681 * our multiply linked block.
3683 * Even if we previously determined that an *IND block
3684 * conflicts with critical metadata, we must still try to
3685 * iterate the *IND block as if it is an *IND block to find and
3686 * mark the blocks it points to. Better to be overly cautious
3687 * with the used_blocks map so that we don't move the *IND
3688 * block to a block that's really in use!
3690 if (p->ino != EXT2_RESIZE_INO &&
3692 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3697 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
3698 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
3702 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
3704 set_latch_flags(PR_LATCH_BLOCK,
3709 pctx->blkcount = blockcnt;
3710 if (fix_problem(ctx, problem, pctx)) {
3711 blk = *block_nr = 0;
3712 ret_code = BLOCK_CHANGED;
3713 p->inode_modified = 1;
3715 * If the directory block is too big and is beyond the
3716 * end of the FS, don't bother trying to add it for
3717 * processing -- the kernel would never have created a
3718 * directory this large, and we risk an ENOMEM abort.
3719 * In any case, the toobig handler for extent-based
3720 * directories also doesn't feed toobig blocks to
3723 if (problem == PR_1_TOOBIG_DIR)
3730 if (p->ino == EXT2_RESIZE_INO) {
3732 * The resize inode has already be sanity checked
3733 * during pass #0 (the superblock checks). All we
3734 * have to do is mark the double indirect block as
3735 * being in use; all of the other blocks are handled
3736 * by mark_table_blocks()).
3738 if (blockcnt == BLOCK_COUNT_DIND)
3739 mark_block_used(ctx, blk);
3741 } else if (!(ctx->fs->cluster_ratio_bits &&
3742 p->previous_block &&
3743 (EXT2FS_B2C(ctx->fs, blk) ==
3744 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
3745 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
3746 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
3747 mark_block_used(ctx, blk);
3749 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
3750 p->last_block, blk, blockcnt)) {
3751 pctx->blk = blockcnt;
3753 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3754 mark_block_used(ctx, blk);
3755 mark_block_used(ctx, blk);
3758 p->last_block = blockcnt;
3759 p->previous_block = blk;
3761 if (p->is_dir && (blockcnt >= 0)) {
3762 while (++p->last_db_block < blockcnt) {
3763 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
3766 if (pctx->errcode) {
3768 pctx->num = p->last_db_block;
3769 goto failed_add_dir_block;
3772 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
3774 if (pctx->errcode) {
3776 pctx->num = blockcnt;
3777 failed_add_dir_block:
3778 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3779 /* Should never get here */
3780 ctx->flags |= E2F_FLAG_ABORT;
3787 static int process_bad_block(ext2_filsys fs,
3789 e2_blkcnt_t blockcnt,
3790 blk64_t ref_block EXT2FS_ATTR((unused)),
3791 int ref_offset EXT2FS_ATTR((unused)),
3794 struct process_block_struct *p;
3795 blk64_t blk = *block_nr;
3796 blk64_t first_block;
3798 struct problem_context *pctx;
3804 p = (struct process_block_struct *) priv_data;
3808 pctx->ino = EXT2_BAD_INO;
3810 pctx->blkcount = blockcnt;
3812 if ((blk < fs->super->s_first_data_block) ||
3813 (blk >= ext2fs_blocks_count(fs->super))) {
3814 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
3816 return BLOCK_CHANGED;
3822 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
3824 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
3826 return BLOCK_CHANGED;
3828 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3831 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
3834 return BLOCK_CHANGED;
3836 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3839 mark_block_used(ctx, blk);
3843 printf ("DEBUG: Marking %u as bad.\n", blk);
3845 ctx->fs_badblocks_count++;
3847 * If the block is not used, then mark it as used and return.
3848 * If it is already marked as found, this must mean that
3849 * there's an overlap between the filesystem table blocks
3850 * (bitmaps and inode table) and the bad block list.
3852 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
3853 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
3857 * Try to find the where the filesystem block was used...
3859 first_block = fs->super->s_first_data_block;
3861 for (i = 0; i < fs->group_desc_count; i++ ) {
3864 if (!ext2fs_bg_has_super(fs, i))
3866 if (blk == first_block) {
3868 if (fix_problem(ctx,
3869 PR_1_BAD_PRIMARY_SUPERBLOCK,
3872 return BLOCK_CHANGED;
3876 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
3879 if ((blk > first_block) &&
3880 (blk <= first_block + fs->desc_blocks)) {
3882 pctx->blk = *block_nr;
3883 if (fix_problem(ctx,
3884 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
3886 return BLOCK_CHANGED;
3890 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
3894 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
3895 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
3896 ctx->invalid_block_bitmap_flag[i]++;
3897 ctx->invalid_bitmaps++;
3901 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
3902 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
3903 ctx->invalid_inode_bitmap_flag[i]++;
3904 ctx->invalid_bitmaps++;
3908 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
3909 (blk < (ext2fs_inode_table_loc(fs, i) +
3910 fs->inode_blocks_per_group))) {
3912 * If there are bad blocks in the inode table,
3913 * the inode scan code will try to do
3914 * something reasonable automatically.
3918 first_block += fs->super->s_blocks_per_group;
3921 * If we've gotten to this point, then the only
3922 * possibility is that the bad block inode meta data
3923 * is using a bad block.
3925 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
3926 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
3927 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
3929 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
3931 return BLOCK_CHANGED;
3933 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3940 /* Warn user that the block wasn't claimed */
3941 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
3946 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
3947 const char *name, int num, blk64_t *new_block)
3949 ext2_filsys fs = ctx->fs;
3951 blk64_t old_block = *new_block;
3954 unsigned flexbg_size;
3957 struct problem_context pctx;
3959 clear_problem_context(&pctx);
3962 pctx.blk = old_block;
3966 * For flex_bg filesystems, first try to allocate the metadata
3967 * within the flex_bg, and if that fails then try finding the
3968 * space anywhere in the filesystem.
3970 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
3972 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
3973 flexbg = group / flexbg_size;
3974 first_block = ext2fs_group_first_block2(fs,
3975 flexbg_size * flexbg);
3976 last_grp = group | (flexbg_size - 1);
3977 if (last_grp >= fs->group_desc_count)
3978 last_grp = fs->group_desc_count - 1;
3979 last_block = ext2fs_group_last_block2(fs, last_grp);
3981 last_block = ext2fs_group_last_block2(fs, group);
3982 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
3983 num, ctx->block_found_map,
3985 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
3986 pctx.errcode = ext2fs_get_free_blocks2(fs,
3987 fs->super->s_first_data_block,
3988 ext2fs_blocks_count(fs->super),
3989 num, ctx->block_found_map, new_block);
3992 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
3993 ext2fs_unmark_valid(fs);
3994 ctx->flags |= E2F_FLAG_ABORT;
3997 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
3999 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
4000 ext2fs_unmark_valid(fs);
4001 ctx->flags |= E2F_FLAG_ABORT;
4004 ext2fs_mark_super_dirty(fs);
4005 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
4006 pctx.blk2 = *new_block;
4007 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
4008 PR_1_RELOC_TO), &pctx);
4010 for (i = 0; i < num; i++) {
4012 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
4014 pctx.errcode = io_channel_read_blk64(fs->io,
4015 old_block + i, 1, buf);
4017 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
4018 pctx.blk = (*new_block) + i;
4019 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
4022 pctx.blk = (*new_block) + i;
4023 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
4028 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
4030 ext2fs_free_mem(&buf);
4034 * This routine gets called at the end of pass 1 if bad blocks are
4035 * detected in the superblock, group descriptors, inode_bitmaps, or
4036 * block bitmaps. At this point, all of the blocks have been mapped
4037 * out, so we can try to allocate new block(s) to replace the bad
4040 static void handle_fs_bad_blocks(e2fsck_t ctx)
4042 ext2_filsys fs = ctx->fs;
4044 blk64_t first_block;
4047 for (i = 0; i < fs->group_desc_count; i++) {
4048 first_block = ext2fs_group_first_block2(fs, i);
4050 if (ctx->invalid_block_bitmap_flag[i]) {
4051 new_blk = ext2fs_block_bitmap_loc(fs, i);
4052 new_table_block(ctx, first_block, i, _("block bitmap"),
4054 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
4056 if (ctx->invalid_inode_bitmap_flag[i]) {
4057 new_blk = ext2fs_inode_bitmap_loc(fs, i);
4058 new_table_block(ctx, first_block, i, _("inode bitmap"),
4060 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
4062 if (ctx->invalid_inode_table_flag[i]) {
4063 new_blk = ext2fs_inode_table_loc(fs, i);
4064 new_table_block(ctx, first_block, i, _("inode table"),
4065 fs->inode_blocks_per_group,
4067 ext2fs_inode_table_loc_set(fs, i, new_blk);
4068 ctx->flags |= E2F_FLAG_RESTART;
4071 ctx->invalid_bitmaps = 0;
4075 * This routine marks all blocks which are used by the superblock,
4076 * group descriptors, inode bitmaps, and block bitmaps.
4078 static void mark_table_blocks(e2fsck_t ctx)
4080 ext2_filsys fs = ctx->fs;
4084 struct problem_context pctx;
4086 clear_problem_context(&pctx);
4088 for (i = 0; i < fs->group_desc_count; i++) {
4091 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
4092 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
4095 * Mark the blocks used for the inode table
4097 if (ext2fs_inode_table_loc(fs, i)) {
4098 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
4099 j < fs->inode_blocks_per_group;
4101 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4104 if (!ctx->invalid_inode_table_flag[i] &&
4106 PR_1_ITABLE_CONFLICT, &pctx)) {
4107 ctx->invalid_inode_table_flag[i]++;
4108 ctx->invalid_bitmaps++;
4111 ext2fs_mark_block_bitmap2(
4112 ctx->block_found_map, b);
4113 ext2fs_mark_block_bitmap2(
4114 ctx->block_metadata_map, b);
4120 * Mark block used for the block bitmap
4122 if (ext2fs_block_bitmap_loc(fs, i)) {
4123 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4124 ext2fs_block_bitmap_loc(fs, i))) {
4125 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
4126 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
4127 ctx->invalid_block_bitmap_flag[i]++;
4128 ctx->invalid_bitmaps++;
4131 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4132 ext2fs_block_bitmap_loc(fs, i));
4133 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4134 ext2fs_block_bitmap_loc(fs, i));
4138 * Mark block used for the inode bitmap
4140 if (ext2fs_inode_bitmap_loc(fs, i)) {
4141 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4142 ext2fs_inode_bitmap_loc(fs, i))) {
4143 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
4144 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
4145 ctx->invalid_inode_bitmap_flag[i]++;
4146 ctx->invalid_bitmaps++;
4149 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4150 ext2fs_inode_bitmap_loc(fs, i));
4151 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4152 ext2fs_inode_bitmap_loc(fs, i));
4159 * These subroutines short circuits ext2fs_get_blocks and
4160 * ext2fs_check_directory; we use them since we already have the inode
4161 * structure, so there's no point in letting the ext2fs library read
4164 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
4167 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4170 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4171 return EXT2_ET_CALLBACK_NOTHANDLED;
4173 for (i=0; i < EXT2_N_BLOCKS; i++)
4174 blocks[i] = ctx->stashed_inode->i_block[i];
4178 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
4179 struct ext2_inode *inode)
4181 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4183 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4184 return EXT2_ET_CALLBACK_NOTHANDLED;
4185 *inode = *ctx->stashed_inode;
4189 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
4190 struct ext2_inode *inode)
4192 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4194 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
4195 (inode != ctx->stashed_inode))
4196 *ctx->stashed_inode = *inode;
4197 return EXT2_ET_CALLBACK_NOTHANDLED;
4200 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
4202 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4204 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4205 return EXT2_ET_CALLBACK_NOTHANDLED;
4207 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
4208 return EXT2_ET_NO_DIRECTORY;
4212 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
4215 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4219 if (ctx->block_found_map) {
4220 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
4224 if (fs->block_map) {
4225 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
4226 ext2fs_mark_bb_dirty(fs);
4229 if (!fs->block_map) {
4230 retval = ext2fs_read_block_bitmap(fs);
4235 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
4244 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
4245 blk64_t len, blk64_t *pblk, blk64_t *plen)
4247 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4250 if (ctx->block_found_map)
4251 return ext2fs_new_range(fs, flags, goal, len,
4252 ctx->block_found_map, pblk, plen);
4254 if (!fs->block_map) {
4255 retval = ext2fs_read_block_bitmap(fs);
4260 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
4264 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
4266 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4268 /* Never free a critical metadata block */
4269 if (ctx->block_found_map &&
4270 ctx->block_metadata_map &&
4272 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
4275 if (ctx->block_found_map) {
4277 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4279 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
4283 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
4284 blk_t num, int inuse)
4286 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4288 /* Never free a critical metadata block */
4289 if (ctx->block_found_map &&
4290 ctx->block_metadata_map &&
4292 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
4295 if (ctx->block_found_map) {
4297 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
4300 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
4305 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
4307 ext2_filsys fs = ctx->fs;
4309 if (use_shortcuts) {
4310 fs->get_blocks = pass1_get_blocks;
4311 fs->check_directory = pass1_check_directory;
4312 fs->read_inode = pass1_read_inode;
4313 fs->write_inode = pass1_write_inode;
4314 ctx->stashed_ino = 0;
4317 fs->check_directory = 0;
4319 fs->write_inode = 0;
4323 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
4325 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
4326 ext2fs_set_block_alloc_stats_callback(ctx->fs,
4327 e2fsck_block_alloc_stats, 0);
4328 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
4329 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
4330 e2fsck_block_alloc_stats_range, NULL);