2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which inodes are casefolded. (inode_casefold_map)
27 * - A bitmap of which blocks are in use. (block_found_map)
28 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
29 * - The data blocks of the directory inodes. (dir_map)
30 * - Ref counts for ea_inodes. (ea_inode_refs)
31 * - The encryption policy ID of each encrypted inode. (encrypted_files)
33 * Pass 1 is designed to stash away enough information so that the
34 * other passes should not need to read in the inode information
35 * during the normal course of a filesystem check. (Although if an
36 * inconsistency is detected, other passes may need to read in an
39 * Note that pass 1B will be invoked if there are any duplicate blocks
43 #define _GNU_SOURCE 1 /* get strnlen() */
56 #include <ext2fs/ext2_ext_attr.h>
57 /* todo remove this finally */
58 #include <ext2fs/ext2fsP.h>
63 #ifdef NO_INLINE_FUNCS
66 #define _INLINE_ inline
76 static int process_block(ext2_filsys fs, blk64_t *blocknr,
77 e2_blkcnt_t blockcnt, blk64_t ref_blk,
78 int ref_offset, void *priv_data);
79 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
80 e2_blkcnt_t blockcnt, blk64_t ref_blk,
81 int ref_offset, void *priv_data);
82 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
84 const struct ea_quota *ea_ibody_quota);
85 static void mark_table_blocks(e2fsck_t ctx);
86 static void alloc_bb_map(e2fsck_t ctx);
87 static void alloc_imagic_map(e2fsck_t ctx);
88 static void mark_inode_bad(e2fsck_t ctx, ext2_ino_t ino);
89 static void add_casefolded_dir(e2fsck_t ctx, ext2_ino_t ino);
90 static void handle_fs_bad_blocks(e2fsck_t ctx);
91 static void process_inodes(e2fsck_t ctx, char *block_buf);
92 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
93 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
94 dgrp_t group, void * priv_data);
95 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
96 char *block_buf, int adjust_sign);
97 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
99 struct process_block_struct {
101 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
102 fragmented:1, compressed:1, bbcheck:1,
107 e2_blkcnt_t last_init_lblock;
108 e2_blkcnt_t last_db_block;
109 int num_illegal_blocks;
110 blk64_t previous_block;
111 struct ext2_inode *inode;
112 struct problem_context *pctx;
113 ext2fs_block_bitmap fs_meta_blocks;
116 struct extent_tree_info eti;
119 struct process_inode_block {
121 struct ea_quota ea_ibody_quota;
122 struct ext2_inode_large inode;
125 struct scan_callback_struct {
131 * For the inodes to process list.
133 static struct process_inode_block *inodes_to_process;
134 static int process_inode_count;
136 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
137 EXT2_MIN_BLOCK_LOG_SIZE + 1];
140 * Check to make sure a device inode is real. Returns 1 if the device
141 * checks out, 0 if not.
143 * Note: this routine is now also used to check FIFO's and Sockets,
144 * since they have the same requirement; the i_block fields should be
147 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
148 struct ext2_inode *inode)
153 * If the index or extents flag is set, then this is a bogus
156 if (inode->i_flags & (EXT2_INDEX_FL | EXT4_EXTENTS_FL))
160 * We should be able to do the test below all the time, but
161 * because the kernel doesn't forcibly clear the device
162 * inode's additional i_block fields, there are some rare
163 * occasions when a legitimate device inode will have non-zero
164 * additional i_block fields. So for now, we only complain
165 * when the immutable flag is set, which should never happen
166 * for devices. (And that's when the problem is caused, since
167 * you can't set or clear immutable flags for devices.) Once
168 * the kernel has been fixed we can change this...
170 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
171 for (i=4; i < EXT2_N_BLOCKS; i++)
172 if (inode->i_block[i])
179 * Check to make sure a symlink inode is real. Returns 1 if the symlink
180 * checks out, 0 if not.
182 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
183 struct ext2_inode *inode, char *buf)
188 if ((inode->i_size_high || inode->i_size == 0) ||
189 (inode->i_flags & EXT2_INDEX_FL))
192 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
195 if (inode->i_flags & EXT4_EXTENTS_FL)
197 if (ext2fs_inline_data_size(fs, ino, &inline_size))
199 if (inode->i_size != inline_size)
205 if (ext2fs_is_fast_symlink(inode)) {
206 if (inode->i_flags & EXT4_EXTENTS_FL)
208 buf = (char *)inode->i_block;
209 buflen = sizeof(inode->i_block);
211 ext2_extent_handle_t handle;
212 struct ext2_extent_info info;
213 struct ext2fs_extent extent;
217 if (inode->i_flags & EXT4_EXTENTS_FL) {
218 if (ext2fs_extent_open2(fs, ino, inode, &handle))
220 if (ext2fs_extent_get_info(handle, &info) ||
221 (info.num_entries != 1) ||
222 (info.max_depth != 0)) {
223 ext2fs_extent_free(handle);
226 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT,
228 (extent.e_lblk != 0) ||
229 (extent.e_len != 1)) {
230 ext2fs_extent_free(handle);
234 ext2fs_extent_free(handle);
236 blk = inode->i_block[0];
238 for (i = 1; i < EXT2_N_BLOCKS; i++)
239 if (inode->i_block[i])
243 if (blk < fs->super->s_first_data_block ||
244 blk >= ext2fs_blocks_count(fs->super))
247 if (io_channel_read_blk64(fs->io, blk, 1, buf))
250 buflen = fs->blocksize;
253 if (inode->i_flags & EXT4_ENCRYPT_FL)
254 len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
256 len = strnlen(buf, buflen);
261 if (len != inode->i_size)
267 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
269 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
270 static void check_extents_inlinedata(e2fsck_t ctx,
271 struct problem_context *pctx)
273 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
276 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
279 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
280 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
282 #undef BAD_SPECIAL_FLAGS
285 * If the immutable (or append-only) flag is set on the inode, offer
288 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
289 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
291 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
294 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
297 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
298 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
302 * If device, fifo or socket, check size is zero -- if not offer to
305 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
307 struct ext2_inode *inode = pctx->inode;
309 if (EXT2_I_SIZE(inode) == 0)
312 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
315 ext2fs_inode_size_set(ctx->fs, inode, 0);
316 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
320 * For a given size, calculate how many blocks would be charged towards quota.
322 static blk64_t size_to_quota_blocks(ext2_filsys fs, size_t size)
326 clusters = DIV_ROUND_UP(size, fs->blocksize << fs->cluster_ratio_bits);
327 return EXT2FS_C2B(fs, clusters);
331 * Check validity of EA inode. Return 0 if EA inode is valid, otherwise return
334 static problem_t check_large_ea_inode(e2fsck_t ctx,
335 struct ext2_ext_attr_entry *entry,
336 struct problem_context *pctx,
337 blk64_t *quota_blocks)
339 struct ext2_inode inode;
340 __u32 hash, signed_hash;
343 /* Check if inode is within valid range */
344 if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
345 (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
346 pctx->num = entry->e_value_inum;
347 return PR_1_ATTR_VALUE_EA_INODE;
350 e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
352 retval = ext2fs_ext_attr_hash_entry3(ctx->fs, entry, NULL, &hash,
355 com_err("check_large_ea_inode", retval,
356 _("while hashing entry with e_value_inum = %u"),
357 entry->e_value_inum);
361 if ((hash == entry->e_hash) || (signed_hash == entry->e_hash)) {
362 *quota_blocks = size_to_quota_blocks(ctx->fs,
363 entry->e_value_size);
365 /* This might be an old Lustre-style ea_inode reference. */
366 if (inode.i_mtime == pctx->ino &&
367 inode.i_generation == pctx->inode->i_generation) {
370 /* If target inode is also missing EA_INODE flag,
371 * this is likely to be a bad reference.
373 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
374 pctx->num = entry->e_value_inum;
375 return PR_1_ATTR_VALUE_EA_INODE;
377 pctx->num = entry->e_hash;
378 return PR_1_ATTR_HASH;
383 if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
384 pctx->num = entry->e_value_inum;
385 if (fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
386 inode.i_flags |= EXT4_EA_INODE_FL;
387 ext2fs_write_inode(ctx->fs, entry->e_value_inum,
390 return PR_1_ATTR_NO_EA_INODE_FL;
396 static void inc_ea_inode_refs(e2fsck_t ctx, struct problem_context *pctx,
397 struct ext2_ext_attr_entry *first, void *end)
399 struct ext2_ext_attr_entry *entry = first;
400 struct ext2_ext_attr_entry *np = EXT2_EXT_ATTR_NEXT(entry);
402 while ((void *) entry < end && (void *) np < end &&
403 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
404 if (!entry->e_value_inum)
406 if (!ctx->ea_inode_refs) {
407 pctx->errcode = ea_refcount_create(0,
408 &ctx->ea_inode_refs);
411 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
412 ctx->flags |= E2F_FLAG_ABORT;
416 ea_refcount_increment(ctx->ea_inode_refs, entry->e_value_inum,
420 np = EXT2_EXT_ATTR_NEXT(entry);
424 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx,
425 struct ea_quota *ea_ibody_quota)
427 struct ext2_super_block *sb = ctx->fs->super;
428 struct ext2_inode_large *inode;
429 struct ext2_ext_attr_entry *entry;
430 char *start, *header, *end;
431 unsigned int storage_size, remain;
432 problem_t problem = 0;
435 ea_ibody_quota->blocks = 0;
436 ea_ibody_quota->inodes = 0;
438 inode = (struct ext2_inode_large *) pctx->inode;
439 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
440 inode->i_extra_isize;
441 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
442 inode->i_extra_isize;
443 end = header + storage_size;
444 start = header + sizeof(__u32);
445 entry = (struct ext2_ext_attr_entry *) start;
447 /* scan all entry's headers first */
449 /* take finish entry 0UL into account */
450 remain = storage_size - sizeof(__u32);
452 region = region_create(0, storage_size);
454 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
456 ctx->flags |= E2F_FLAG_ABORT;
459 if (region_allocate(region, 0, sizeof(__u32))) {
460 problem = PR_1_INODE_EA_ALLOC_COLLISION;
464 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
465 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
468 if (region_allocate(region, (char *)entry - (char *)header,
469 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
470 problem = PR_1_INODE_EA_ALLOC_COLLISION;
474 /* header eats this space */
475 remain -= sizeof(struct ext2_ext_attr_entry);
477 /* is attribute name valid? */
478 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
479 pctx->num = entry->e_name_len;
480 problem = PR_1_ATTR_NAME_LEN;
484 /* attribute len eats this space */
485 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
487 if (entry->e_value_inum == 0) {
488 /* check value size */
489 if (entry->e_value_size > remain) {
490 pctx->num = entry->e_value_size;
491 problem = PR_1_ATTR_VALUE_SIZE;
495 if (entry->e_value_size &&
496 region_allocate(region,
497 sizeof(__u32) + entry->e_value_offs,
499 entry->e_value_size))) {
500 problem = PR_1_INODE_EA_ALLOC_COLLISION;
504 hash = ext2fs_ext_attr_hash_entry(entry,
505 start + entry->e_value_offs);
506 if (entry->e_hash != 0 && entry->e_hash != hash)
507 hash = ext2fs_ext_attr_hash_entry_signed(entry,
508 start + entry->e_value_offs);
510 /* e_hash may be 0 in older inode's ea */
511 if (entry->e_hash != 0 && entry->e_hash != hash) {
512 pctx->num = entry->e_hash;
513 problem = PR_1_ATTR_HASH;
517 blk64_t quota_blocks;
519 problem = check_large_ea_inode(ctx, entry, pctx,
524 ea_ibody_quota->blocks += quota_blocks;
525 ea_ibody_quota->inodes++;
528 /* If EA value is stored in external inode then it does not
529 * consume space here */
530 if (entry->e_value_inum == 0)
531 remain -= entry->e_value_size;
533 entry = EXT2_EXT_ATTR_NEXT(entry);
536 if (region_allocate(region, (char *)entry - (char *)header,
538 problem = PR_1_INODE_EA_ALLOC_COLLISION;
545 * it seems like a corruption. it's very unlikely we could repair
546 * EA(s) in automatic fashion -bzzz
548 if (problem == 0 || !fix_problem(ctx, problem, pctx)) {
549 inc_ea_inode_refs(ctx, pctx,
550 (struct ext2_ext_attr_entry *)start, end);
554 /* simply remove all possible EA(s) */
555 *((__u32 *)header) = 0UL;
556 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
557 EXT2_INODE_SIZE(sb), "pass1");
558 ea_ibody_quota->blocks = 0;
559 ea_ibody_quota->inodes = 0;
562 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
563 return (xtime & (1U << 31)) != 0 &&
564 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
567 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
568 check_inode_extra_negative_epoch(inode->i_##xtime, \
569 inode->i_##xtime##_extra)
571 /* When today's date is earlier than 2242, we assume that atimes,
572 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
573 * actually pre-1970 dates mis-encoded.
575 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
577 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx,
578 struct ea_quota *ea_ibody_quota)
580 struct ext2_super_block *sb = ctx->fs->super;
581 struct ext2_inode_large *inode;
585 ea_ibody_quota->blocks = 0;
586 ea_ibody_quota->inodes = 0;
588 inode = (struct ext2_inode_large *) pctx->inode;
589 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
590 /* this isn't large inode. so, nothing to check */
595 printf("inode #%u, i_extra_size %d\n", pctx->ino,
596 inode->i_extra_isize);
598 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
599 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
600 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
602 * For now we will allow i_extra_isize to be 0, but really
603 * implementations should never allow i_extra_isize to be 0
605 if (inode->i_extra_isize &&
606 (inode->i_extra_isize < min || inode->i_extra_isize > max ||
607 inode->i_extra_isize & 3)) {
608 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
610 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
611 inode->i_extra_isize = sb->s_want_extra_isize;
613 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
614 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
615 EXT2_INODE_SIZE(sb), "pass1");
618 /* check if there is no place for an EA header */
619 if (inode->i_extra_isize >= max - sizeof(__u32))
622 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
623 inode->i_extra_isize);
624 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
625 /* it seems inode has an extended attribute(s) in body */
626 check_ea_in_inode(ctx, pctx, ea_ibody_quota);
630 * If the inode's extended atime (ctime, crtime, mtime) is stored in
631 * the old, invalid format, repair it.
633 if (((sizeof(time_t) <= 4) ||
634 (((sizeof(time_t) > 4) &&
635 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
636 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
637 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
638 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
639 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
641 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
644 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
645 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
646 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
647 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
648 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
649 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
650 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
651 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
652 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
653 EXT2_INODE_SIZE(sb), "pass1");
659 * Check to see if the inode might really be a directory, despite i_mode
661 * This is a lot of complexity for something for which I'm not really
662 * convinced happens frequently in the wild. If for any reason this
663 * causes any problems, take this code out.
664 * [tytso:20070331.0827EDT]
666 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
669 struct ext2_inode *inode = pctx->inode;
670 struct ext2_dir_entry *dirent;
673 unsigned int i, rec_len, not_device = 0;
678 * If the mode looks OK, we believe it. If the first block in
679 * the i_block array is 0, this cannot be a directory. If the
680 * inode is extent-mapped, it is still the case that the latter
681 * cannot be 0 - the magic number in the extent header would make
684 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
685 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
689 * Check the block numbers in the i_block array for validity:
690 * zero blocks are skipped (but the first one cannot be zero -
691 * see above), other blocks are checked against the first and
692 * max data blocks (from the the superblock) and against the
693 * block bitmap. Any invalid block found means this cannot be
696 * If there are non-zero blocks past the fourth entry, then
697 * this cannot be a device file: we remember that for the next
700 * For extent mapped files, we don't do any sanity checking:
701 * just try to get the phys block of logical block 0 and run
704 * For inline data files, we just try to get the size of inline
705 * data. If it's true, we will treat it as a directory.
708 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
709 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
710 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
713 unsigned int rec_len2;
714 struct ext2_dir_entry de;
716 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
719 * If the size isn't a multiple of 4, it's probably not a
725 * If the first 10 bytes don't look like a directory entry,
726 * it's probably not a directory.
728 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
729 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
730 EXT2_DIR_REC_LEN(0));
731 dotdot = ext2fs_le32_to_cpu(dotdot);
732 de.inode = ext2fs_le32_to_cpu(de.inode);
733 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
734 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
735 if (dotdot >= ctx->fs->super->s_inodes_count ||
736 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
737 dotdot != EXT2_ROOT_INO) ||
738 de.inode >= ctx->fs->super->s_inodes_count ||
739 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
741 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
742 EXT4_INLINE_DATA_DOTDOT_SIZE)
744 /* device files never have a "system.data" entry */
746 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
748 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
751 /* device files are never extent mapped */
754 for (i=0; i < EXT2_N_BLOCKS; i++) {
755 blk = inode->i_block[i];
761 if (blk < ctx->fs->super->s_first_data_block ||
762 blk >= ext2fs_blocks_count(ctx->fs->super) ||
763 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
765 return; /* Invalid block, can't be dir */
767 blk = inode->i_block[0];
771 * If the mode says this is a device file and the i_links_count field
772 * is sane and we have not ruled it out as a device file previously,
773 * we declare it a device file, not a directory.
775 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
776 (inode->i_links_count == 1) && !not_device)
779 /* read the first block */
780 ehandler_operation(_("reading directory block"));
781 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
782 ehandler_operation(0);
786 dirent = (struct ext2_dir_entry *) buf;
787 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
790 if ((ext2fs_dirent_name_len(dirent) != 1) ||
791 (dirent->name[0] != '.') ||
792 (dirent->inode != pctx->ino) ||
795 (rec_len >= ctx->fs->blocksize - 12))
798 dirent = (struct ext2_dir_entry *) (buf + rec_len);
799 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
802 if ((ext2fs_dirent_name_len(dirent) != 2) ||
803 (dirent->name[0] != '.') ||
804 (dirent->name[1] != '.') ||
810 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
811 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
812 e2fsck_write_inode_full(ctx, pctx->ino, inode,
813 EXT2_INODE_SIZE(ctx->fs->super),
814 "check_is_really_dir");
818 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
819 int flags, ext2_icount_t hint,
822 unsigned int threshold;
823 unsigned int save_type;
831 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
833 profile_get_uint(ctx->profile, "scratch_files",
834 "numdirs_threshold", 0, 0, &threshold);
835 profile_get_boolean(ctx->profile, "scratch_files",
836 "icount", 0, 1, &enable);
838 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
840 num_dirs = 1024; /* Guess */
842 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
843 (!threshold || num_dirs > threshold)) {
844 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
849 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
851 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
852 flags |= EXT2_ICOUNT_OPT_FULLMAP;
853 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
854 ctx->fs->default_bitmap_type = save_type;
858 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
860 struct problem_context *pctx)
863 struct ext2_inode_large inode;
866 * Reread inode. If we don't see checksum error, then this inode
867 * has been fixed elsewhere.
869 ctx->stashed_ino = 0;
870 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
872 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
878 * Checksum still doesn't match. That implies that the inode passes
879 * all the sanity checks, so maybe the checksum is simply corrupt.
880 * See if the user will go for fixing that.
882 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
885 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
890 static void reserve_block_for_root_repair(e2fsck_t ctx)
894 ext2_filsys fs = ctx->fs;
896 ctx->root_repair_block = 0;
897 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
900 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
903 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
904 ctx->root_repair_block = blk;
907 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
911 ext2_filsys fs = ctx->fs;
912 static const char name[] = "lost+found";
915 ctx->lnf_repair_block = 0;
916 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
919 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
922 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
923 ctx->lnf_repair_block = blk;
926 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
927 struct ext2_inode *inode,
931 struct ext2_xattr_handle *handle;
934 retval = ext2fs_xattrs_open(fs, ino, &handle);
938 retval = ext2fs_xattrs_read_inode(handle,
939 (struct ext2_inode_large *)inode);
943 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
948 (void) ext2fs_xattrs_close(&handle);
952 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
953 struct problem_context *pctx,
960 * If the inode failed the checksum and the user didn't
961 * clear the inode, test the checksum again -- if it still
962 * fails, ask the user if the checksum should be corrected.
964 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
966 ctx->flags |= E2F_FLAG_ABORT;
968 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
970 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
971 if ((ctx)->flags & E2F_FLAG_ABORT) \
975 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
980 for (i = 0; i < EXT2_N_BLOCKS; i++) {
981 x = inode->i_block[i];
982 #ifdef WORDS_BIGENDIAN
983 x = ext2fs_swab32(x);
985 if (x >= ext2fs_blocks_count(fs->super))
993 * Figure out what to do with an inode that has both extents and inline data
994 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
996 static int fix_inline_data_extents_file(e2fsck_t ctx,
998 struct ext2_inode *inode,
1000 struct problem_context *pctx)
1002 size_t max_inline_ea_size;
1003 ext2_filsys fs = ctx->fs;
1006 /* Both feature flags not set? Just run the regular checks */
1007 if (!ext2fs_has_feature_extents(fs->super) &&
1008 !ext2fs_has_feature_inline_data(fs->super))
1011 /* Clear both flags if it's a special file */
1012 if (LINUX_S_ISCHR(inode->i_mode) ||
1013 LINUX_S_ISBLK(inode->i_mode) ||
1014 LINUX_S_ISFIFO(inode->i_mode) ||
1015 LINUX_S_ISSOCK(inode->i_mode)) {
1016 check_extents_inlinedata(ctx, pctx);
1020 /* If it looks like an extent tree, try to clear inlinedata */
1021 if (ext2fs_extent_header_verify(inode->i_block,
1022 sizeof(inode->i_block)) == 0 &&
1023 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
1024 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1029 /* If it looks short enough to be inline data, try to clear extents */
1030 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
1031 max_inline_ea_size = inode_size -
1032 (EXT2_GOOD_OLD_INODE_SIZE +
1033 ((struct ext2_inode_large *)inode)->i_extra_isize);
1035 max_inline_ea_size = 0;
1036 if (EXT2_I_SIZE(inode) <
1037 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
1038 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
1039 inode->i_flags &= ~EXT4_EXTENTS_FL;
1045 * Too big for inline data, but no evidence of extent tree -
1046 * maybe it's a block map file? If the mappings all look valid?
1048 if (could_be_block_map(fs, inode) &&
1049 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
1050 #ifdef WORDS_BIGENDIAN
1053 for (i = 0; i < EXT2_N_BLOCKS; i++)
1054 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
1057 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
1062 /* Oh well, just clear the busted inode. */
1063 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
1064 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1070 e2fsck_write_inode(ctx, ino, inode, "pass1");
1075 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
1077 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
1078 dgrp_t start = *group, grp;
1079 blk64_t blocks_to_read = 0;
1080 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
1082 if (ctx->readahead_kb == 0)
1085 /* Keep iterating groups until we have enough to readahead */
1086 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
1087 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
1088 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
1090 inodes_in_group = ctx->fs->super->s_inodes_per_group -
1091 ext2fs_bg_itable_unused(ctx->fs, grp);
1092 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
1094 if (blocks_to_read * ctx->fs->blocksize >
1095 ctx->readahead_kb * 1024)
1099 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
1101 if (err == EAGAIN) {
1102 ctx->readahead_kb /= 2;
1108 /* Error; disable itable readahead */
1109 *group = ctx->fs->group_desc_count;
1110 *next_ino = ctx->fs->super->s_inodes_count;
1113 * Don't do more readahead until we've reached the first inode
1114 * of the last inode scan buffer block for the last group.
1117 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1118 ctx->inode_buffer_blocks :
1119 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1120 ctx->fs->blocksize /
1121 EXT2_INODE_SIZE(ctx->fs->super);
1123 *next_ino = inodes_in_group -
1124 (inodes_in_group % inodes_per_buffer) + 1 +
1125 (grp * ctx->fs->super->s_inodes_per_group);
1130 * Check if the passed ino is one of the used superblock quota inodes.
1132 * Before the quota inodes were journaled, older superblock quota inodes
1133 * were just regular files in the filesystem and not reserved inodes. This
1134 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1135 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1137 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1139 enum quota_type qtype;
1141 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1142 if (*quota_sb_inump(sb, qtype) == ino)
1149 * Check if the passed ino is one of the reserved quota inodes.
1150 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1151 * inodes. These inodes may or may not be in use by the quota feature.
1153 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1155 enum quota_type qtype;
1157 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1158 if (quota_type2inum(qtype, fs->super) == ino)
1164 static int e2fsck_should_abort(e2fsck_t ctx)
1166 e2fsck_t global_ctx;
1168 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1171 if (ctx->global_ctx) {
1172 global_ctx = ctx->global_ctx;
1173 if (global_ctx->flags & E2F_FLAG_SIGNAL_MASK)
1179 void e2fsck_pass1_run(e2fsck_t ctx)
1183 ext2_filsys fs = ctx->fs;
1185 struct ext2_inode *inode = NULL;
1186 ext2_inode_scan scan = NULL;
1187 char *block_buf = NULL;
1188 #ifdef RESOURCE_TRACK
1189 struct resource_track rtrack;
1191 unsigned char frag, fsize;
1192 struct problem_context pctx;
1193 struct scan_callback_struct scan_struct;
1194 struct ext2_super_block *sb = ctx->fs->super;
1196 const char *eop_next_inode = _("getting next inode from scan");
1197 int imagic_fs, extent_fs, inlinedata_fs, casefold_fs;
1198 int low_dtime_check = 1;
1199 unsigned int inode_size = EXT2_INODE_SIZE(fs->super);
1200 unsigned int bufsize;
1201 int failed_csum = 0;
1202 ext2_ino_t ino_threshold = 0;
1203 dgrp_t ra_group = 0;
1204 struct ea_quota ea_ibody_quota;
1206 init_resource_track(&rtrack, ctx->fs->io);
1207 clear_problem_context(&pctx);
1209 /* If we can do readahead, figure out how many groups to pull in. */
1210 if (!e2fsck_can_readahead(ctx->fs))
1211 ctx->readahead_kb = 0;
1212 else if (ctx->readahead_kb == ~0ULL)
1213 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1214 pass1_readahead(ctx, &ra_group, &ino_threshold);
1216 if (!(ctx->options & E2F_OPT_PREEN))
1217 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1219 if (ext2fs_has_feature_dir_index(fs->super) &&
1220 !(ctx->options & E2F_OPT_NO)) {
1221 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1222 ctx->dirs_to_hash = 0;
1226 mtrace_print("Pass 1");
1229 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1231 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1232 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1233 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1234 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1235 max_sizes = (max_sizes * (1UL << i));
1236 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1240 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1241 extent_fs = ext2fs_has_feature_extents(sb);
1242 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1243 casefold_fs = ext2fs_has_feature_casefold(sb);
1246 * Allocate bitmaps structures
1248 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1249 EXT2FS_BMAP64_RBTREE,
1251 &ctx->inode_used_map);
1254 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1255 ctx->flags |= E2F_FLAG_ABORT;
1258 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1259 _("directory inode map"),
1260 EXT2FS_BMAP64_AUTODIR,
1261 "inode_dir_map", &ctx->inode_dir_map);
1264 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1265 ctx->flags |= E2F_FLAG_ABORT;
1268 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1269 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1270 "inode_reg_map", &ctx->inode_reg_map);
1273 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1274 ctx->flags |= E2F_FLAG_ABORT;
1277 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1278 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1279 "block_found_map", &ctx->block_found_map);
1282 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1283 ctx->flags |= E2F_FLAG_ABORT;
1286 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1287 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1288 "block_metadata_map", &ctx->block_metadata_map);
1291 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1292 ctx->flags |= E2F_FLAG_ABORT;
1297 e2fsck_allocate_inode_bitmap(fs,
1298 _("inode casefold map"),
1299 EXT2FS_BMAP64_RBTREE,
1300 "inode_casefold_map",
1301 &ctx->inode_casefold_map);
1304 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1305 ctx->flags |= E2F_FLAG_ABORT;
1309 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1310 &ctx->inode_link_info);
1312 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1313 ctx->flags |= E2F_FLAG_ABORT;
1316 bufsize = inode_size;
1317 if (bufsize < sizeof(struct ext2_inode_large))
1318 bufsize = sizeof(struct ext2_inode_large);
1319 inode = (struct ext2_inode *)
1320 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1322 inodes_to_process = (struct process_inode_block *)
1323 e2fsck_allocate_memory(ctx,
1324 (ctx->process_inode_size *
1325 sizeof(struct process_inode_block)),
1326 "array of inodes to process");
1327 process_inode_count = 0;
1329 pctx.errcode = ext2fs_init_dblist(fs, 0);
1331 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1332 ctx->flags |= E2F_FLAG_ABORT;
1337 * If the last orphan field is set, clear it, since the pass1
1338 * processing will automatically find and clear the orphans.
1339 * In the future, we may want to try using the last_orphan
1340 * linked list ourselves, but for now, we clear it so that the
1341 * ext3 mount code won't get confused.
1343 if (!(ctx->options & E2F_OPT_READONLY)) {
1344 if (fs->super->s_last_orphan) {
1345 fs->super->s_last_orphan = 0;
1346 ext2fs_mark_super_dirty(fs);
1350 mark_table_blocks(ctx);
1351 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1352 &ctx->block_found_map);
1354 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1355 ctx->flags |= E2F_FLAG_ABORT;
1358 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1359 "block iterate buffer");
1360 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1361 e2fsck_use_inode_shortcuts(ctx, 1);
1362 e2fsck_intercept_block_allocations(ctx);
1363 old_op = ehandler_operation(_("opening inode scan"));
1364 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1366 ehandler_operation(old_op);
1368 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1369 ctx->flags |= E2F_FLAG_ABORT;
1372 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1373 EXT2_SF_WARN_GARBAGE_INODES, 0);
1374 ctx->stashed_inode = inode;
1375 scan_struct.ctx = ctx;
1376 scan_struct.block_buf = block_buf;
1377 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1378 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1379 ctx->fs->group_desc_count)))
1381 if ((fs->super->s_wtime &&
1382 fs->super->s_wtime < fs->super->s_inodes_count) ||
1383 (fs->super->s_mtime &&
1384 fs->super->s_mtime < fs->super->s_inodes_count) ||
1385 (fs->super->s_mkfs_time &&
1386 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1387 low_dtime_check = 0;
1389 if (ext2fs_has_feature_mmp(fs->super) &&
1390 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1391 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1392 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1393 fs->super->s_mmp_block);
1395 /* Set up ctx->lost_and_found if possible */
1396 (void) e2fsck_get_lost_and_found(ctx, 0);
1399 if (ctx->global_ctx) {
1400 if (ctx->options & E2F_OPT_DEBUG &&
1401 ctx->options & E2F_OPT_MULTITHREAD)
1402 fprintf(stderr, "thread %d jumping to group %d\n",
1403 ctx->thread_info.et_thread_index,
1404 ctx->thread_info.et_group_start);
1405 pctx.errcode = ext2fs_inode_scan_goto_blockgroup(scan,
1406 ctx->thread_info.et_group_start);
1408 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1409 ctx->flags |= E2F_FLAG_ABORT;
1416 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1417 if (e2fsck_mmp_update(fs))
1418 fatal_error(ctx, 0);
1420 old_op = ehandler_operation(eop_next_inode);
1421 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1423 if (ino > ino_threshold)
1424 pass1_readahead(ctx, &ra_group, &ino_threshold);
1425 ehandler_operation(old_op);
1426 if (e2fsck_should_abort(ctx))
1428 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1430 * If badblocks says badblocks is bad, offer to clear
1431 * the list, update the in-core bb list, and restart
1434 if (ino == EXT2_BAD_INO &&
1435 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1439 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1440 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1441 ctx->fs->badblocks = NULL;
1442 err = ext2fs_read_bb_inode(ctx->fs,
1443 &ctx->fs->badblocks);
1445 fix_problem(ctx, PR_1_ISCAN_ERROR,
1447 ctx->flags |= E2F_FLAG_ABORT;
1449 ctx->flags |= E2F_FLAG_RESTART;
1452 if (!ctx->inode_bb_map)
1454 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1455 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1458 if (pctx.errcode == EXT2_ET_SCAN_FINISHED)
1461 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1462 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1463 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1464 ctx->flags |= E2F_FLAG_ABORT;
1471 ctx->stashed_ino = ino;
1473 /* Clear trashed inode? */
1474 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1475 inode->i_links_count > 0 &&
1476 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1478 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1480 failed_csum = pctx.errcode != 0;
1483 * Check for inodes who might have been part of the
1484 * orphaned list linked list. They should have gotten
1485 * dealt with by now, unless the list had somehow been
1488 * FIXME: In the future, inodes which are still in use
1489 * (and which are therefore) pending truncation should
1490 * be handled specially. Right now we just clear the
1491 * dtime field, and the normal e2fsck handling of
1492 * inodes where i_size and the inode blocks are
1493 * inconsistent is to fix i_size, instead of releasing
1494 * the extra blocks. This won't catch the inodes that
1495 * was at the end of the orphan list, but it's better
1496 * than nothing. The right answer is that there
1497 * shouldn't be any bugs in the orphan list handling. :-)
1499 if (inode->i_dtime && low_dtime_check &&
1500 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1501 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1502 inode->i_dtime = inode->i_links_count ?
1504 e2fsck_write_inode(ctx, ino, inode,
1510 if (inode->i_links_count) {
1511 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1512 ino, inode->i_links_count);
1514 pctx.num = inode->i_links_count;
1515 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1516 ctx->flags |= E2F_FLAG_ABORT;
1519 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1520 !quota_inum_is_reserved(fs, ino)) {
1521 if (!inode->i_dtime && inode->i_mode) {
1522 if (fix_problem(ctx,
1523 PR_1_ZERO_DTIME, &pctx)) {
1524 inode->i_dtime = ctx->now;
1525 e2fsck_write_inode(ctx, ino, inode,
1530 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1534 if ((inode->i_flags & EXT4_CASEFOLD_FL) &&
1535 ((!LINUX_S_ISDIR(inode->i_mode) &&
1536 fix_problem(ctx, PR_1_CASEFOLD_NONDIR, &pctx)) ||
1538 fix_problem(ctx, PR_1_CASEFOLD_FEATURE, &pctx)))) {
1539 inode->i_flags &= ~EXT4_CASEFOLD_FL;
1540 e2fsck_write_inode(ctx, ino, inode, "pass1");
1543 /* Conflicting inlinedata/extents inode flags? */
1544 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1545 (inode->i_flags & EXT4_EXTENTS_FL)) {
1546 int res = fix_inline_data_extents_file(ctx, ino, inode,
1550 /* skip FINISH_INODE_LOOP */
1555 /* Test for incorrect inline_data flags settings. */
1556 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1557 (ino >= EXT2_FIRST_INODE(fs->super))) {
1560 pctx.errcode = get_inline_data_ea_size(fs, ino, inode,
1562 if (!pctx.errcode &&
1563 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1564 ext2fs_set_feature_inline_data(sb);
1565 ext2fs_mark_super_dirty(fs);
1567 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1568 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1569 /* skip FINISH_INODE_LOOP */
1574 /* Test for inline data flag but no attr */
1575 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1576 (ino >= EXT2_FIRST_INODE(fs->super))) {
1583 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1584 err = get_inline_data_ea_size(fs, ino, inode, &size);
1585 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1586 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1590 /* Everything is awesome... */
1592 case EXT2_ET_BAD_EA_BLOCK_NUM:
1593 case EXT2_ET_BAD_EA_HASH:
1594 case EXT2_ET_BAD_EA_HEADER:
1595 case EXT2_ET_EA_BAD_NAME_LEN:
1596 case EXT2_ET_EA_BAD_VALUE_SIZE:
1597 case EXT2_ET_EA_KEY_NOT_FOUND:
1598 case EXT2_ET_EA_NO_SPACE:
1599 case EXT2_ET_MISSING_EA_FEATURE:
1600 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1601 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1602 case EXT2_ET_INLINE_DATA_NO_SPACE:
1603 case EXT2_ET_NO_INLINE_DATA:
1604 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1605 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1606 case EXT2_ET_EA_INODE_CORRUPTED:
1607 /* broken EA or no system.data EA; truncate */
1608 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1610 err = ext2fs_inode_size_set(fs, inode, 0);
1613 ctx->flags |= E2F_FLAG_ABORT;
1616 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1617 memset(&inode->i_block, 0,
1618 sizeof(inode->i_block));
1619 e2fsck_write_inode(ctx, ino, inode,
1625 /* Some other kind of non-xattr error? */
1627 ctx->flags |= E2F_FLAG_ABORT;
1633 * Test for incorrect extent flag settings.
1635 * On big-endian machines we must be careful:
1636 * When the inode is read, the i_block array is not swapped
1637 * if the extent flag is set. Therefore if we are testing
1638 * for or fixing a wrongly-set flag, we must potentially
1639 * (un)swap before testing, or after fixing.
1643 * In this case the extents flag was set when read, so
1644 * extent_header_verify is ok. If the inode is cleared,
1645 * no need to swap... so no extra swapping here.
1647 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1648 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1649 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1650 if ((ext2fs_extent_header_verify(inode->i_block,
1651 sizeof(inode->i_block)) == 0) &&
1652 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1653 ext2fs_set_feature_extents(sb);
1654 ext2fs_mark_super_dirty(fs);
1656 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1658 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1659 if (ino == EXT2_BAD_INO)
1660 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1662 /* skip FINISH_INODE_LOOP */
1668 * For big-endian machines:
1669 * If the inode didn't have the extents flag set when it
1670 * was read, then the i_blocks array was swapped. To test
1671 * as an extents header, we must swap it back first.
1672 * IF we then set the extents flag, the entire i_block
1673 * array must be un/re-swapped to make it proper extents data.
1675 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1676 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1677 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1678 (LINUX_S_ISREG(inode->i_mode) ||
1679 LINUX_S_ISDIR(inode->i_mode))) {
1681 #ifdef WORDS_BIGENDIAN
1682 __u32 tmp_block[EXT2_N_BLOCKS];
1684 for (i = 0; i < EXT2_N_BLOCKS; i++)
1685 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1688 ehp = inode->i_block;
1690 if ((ext2fs_extent_header_verify(ehp,
1691 sizeof(inode->i_block)) == 0) &&
1692 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1693 inode->i_flags |= EXT4_EXTENTS_FL;
1694 #ifdef WORDS_BIGENDIAN
1695 memcpy(inode->i_block, tmp_block,
1696 sizeof(inode->i_block));
1698 e2fsck_write_inode(ctx, ino, inode, "pass1");
1703 if (ino == EXT2_BAD_INO) {
1704 struct process_block_struct pb;
1706 if ((failed_csum || inode->i_mode || inode->i_uid ||
1707 inode->i_gid || inode->i_links_count ||
1708 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1709 inode->i_file_acl) &&
1710 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1711 memset(inode, 0, sizeof(struct ext2_inode));
1712 e2fsck_write_inode(ctx, ino, inode,
1717 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1718 &pb.fs_meta_blocks);
1721 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1722 ctx->flags |= E2F_FLAG_ABORT;
1725 pb.ino = EXT2_BAD_INO;
1726 pb.num_blocks = pb.last_block = 0;
1727 pb.last_db_block = -1;
1728 pb.num_illegal_blocks = 0;
1729 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1730 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1734 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1735 block_buf, process_bad_block, &pb);
1736 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1738 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1739 ctx->flags |= E2F_FLAG_ABORT;
1743 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1744 ctx->flags |= E2F_FLAG_ABORT;
1747 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1748 clear_problem_context(&pctx);
1749 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1751 } else if (ino == EXT2_ROOT_INO) {
1753 * Make sure the root inode is a directory; if
1754 * not, offer to clear it. It will be
1755 * regenerated in pass #3.
1757 if (!LINUX_S_ISDIR(inode->i_mode)) {
1758 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1762 * If dtime is set, offer to clear it. mke2fs
1763 * version 0.2b created filesystems with the
1764 * dtime field set for the root and lost+found
1765 * directories. We won't worry about
1766 * /lost+found, since that can be regenerated
1767 * easily. But we will fix the root directory
1768 * as a special case.
1770 if (inode->i_dtime && inode->i_links_count) {
1771 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1773 e2fsck_write_inode(ctx, ino, inode,
1778 } else if (ino == EXT2_JOURNAL_INO) {
1779 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1780 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1781 if (!LINUX_S_ISREG(inode->i_mode) &&
1782 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1784 inode->i_mode = LINUX_S_IFREG;
1785 e2fsck_write_inode(ctx, ino, inode,
1789 check_blocks(ctx, &pctx, block_buf, NULL);
1790 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1793 if ((inode->i_links_count ||
1794 inode->i_blocks || inode->i_block[0]) &&
1795 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1797 memset(inode, 0, inode_size);
1798 ext2fs_icount_store(ctx->inode_link_info,
1800 e2fsck_write_inode_full(ctx, ino, inode,
1801 inode_size, "pass1");
1804 } else if (quota_inum_is_reserved(fs, ino)) {
1805 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1806 if (ext2fs_has_feature_quota(fs->super) &&
1807 quota_inum_is_super(fs->super, ino)) {
1808 if (!LINUX_S_ISREG(inode->i_mode) &&
1809 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1811 inode->i_mode = LINUX_S_IFREG;
1812 e2fsck_write_inode(ctx, ino, inode,
1816 check_blocks(ctx, &pctx, block_buf, NULL);
1817 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1820 if ((inode->i_links_count ||
1821 inode->i_blocks || inode->i_block[0]) &&
1822 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1824 memset(inode, 0, inode_size);
1825 ext2fs_icount_store(ctx->inode_link_info,
1827 e2fsck_write_inode_full(ctx, ino, inode,
1828 inode_size, "pass1");
1831 } else if (ino == fs->super->s_orphan_file_inum) {
1832 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1833 if (ext2fs_has_feature_orphan_file(fs->super)) {
1834 if (!LINUX_S_ISREG(inode->i_mode) &&
1835 fix_problem(ctx, PR_1_ORPHAN_FILE_BAD_MODE,
1837 inode->i_mode = LINUX_S_IFREG;
1838 e2fsck_write_inode(ctx, ino, inode,
1842 check_blocks(ctx, &pctx, block_buf, NULL);
1843 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1846 if ((inode->i_links_count ||
1847 inode->i_blocks || inode->i_block[0]) &&
1848 fix_problem(ctx, PR_1_ORPHAN_FILE_NOT_CLEAR,
1850 memset(inode, 0, inode_size);
1851 ext2fs_icount_store(ctx->inode_link_info, ino,
1853 e2fsck_write_inode_full(ctx, ino, inode,
1854 inode_size, "pass1");
1857 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1858 problem_t problem = 0;
1860 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1861 if (ino == EXT2_BOOT_LOADER_INO) {
1862 if (LINUX_S_ISDIR(inode->i_mode))
1863 problem = PR_1_RESERVED_BAD_MODE;
1864 } else if (ino == EXT2_RESIZE_INO) {
1865 if (inode->i_mode &&
1866 !LINUX_S_ISREG(inode->i_mode))
1867 problem = PR_1_RESERVED_BAD_MODE;
1869 if (inode->i_mode != 0)
1870 problem = PR_1_RESERVED_BAD_MODE;
1873 if (fix_problem(ctx, problem, &pctx)) {
1875 e2fsck_write_inode(ctx, ino, inode,
1880 check_blocks(ctx, &pctx, block_buf, NULL);
1881 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1885 if (!inode->i_links_count) {
1886 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1890 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1891 * deleted files. Oops.
1893 * Since all new ext2 implementations get this right,
1894 * we now assume that the case of non-zero
1895 * i_links_count and non-zero dtime means that we
1896 * should keep the file, not delete it.
1899 if (inode->i_dtime) {
1900 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1902 e2fsck_write_inode(ctx, ino, inode, "pass1");
1907 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1908 switch (fs->super->s_creator_os) {
1910 frag = inode->osd2.hurd2.h_i_frag;
1911 fsize = inode->osd2.hurd2.h_i_fsize;
1917 if (inode->i_faddr || frag || fsize ||
1918 (!ext2fs_has_feature_largedir(fs->super) &&
1919 (LINUX_S_ISDIR(inode->i_mode) && inode->i_size_high)))
1920 mark_inode_bad(ctx, ino);
1921 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1922 !ext2fs_has_feature_64bit(fs->super) &&
1923 inode->osd2.linux2.l_i_file_acl_high != 0)
1924 mark_inode_bad(ctx, ino);
1925 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1926 !ext2fs_has_feature_huge_file(fs->super) &&
1927 (inode->osd2.linux2.l_i_blocks_hi != 0))
1928 mark_inode_bad(ctx, ino);
1929 if (inode->i_flags & EXT2_IMAGIC_FL) {
1931 if (!ctx->inode_imagic_map)
1932 alloc_imagic_map(ctx);
1933 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1936 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1937 inode->i_flags &= ~EXT2_IMAGIC_FL;
1938 e2fsck_write_inode(ctx, ino,
1945 check_inode_extra_space(ctx, &pctx, &ea_ibody_quota);
1946 check_is_really_dir(ctx, &pctx, block_buf);
1949 * ext2fs_inode_has_valid_blocks2 does not actually look
1950 * at i_block[] values, so not endian-sensitive here.
1952 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1953 LINUX_S_ISLNK(inode->i_mode) &&
1954 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1955 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1956 inode->i_flags &= ~EXT4_EXTENTS_FL;
1957 e2fsck_write_inode(ctx, ino, inode, "pass1");
1961 if ((inode->i_flags & EXT4_ENCRYPT_FL) &&
1962 add_encrypted_file(ctx, &pctx) < 0)
1965 if (casefold_fs && inode->i_flags & EXT4_CASEFOLD_FL)
1966 ext2fs_mark_inode_bitmap2(ctx->inode_casefold_map, ino);
1968 if (LINUX_S_ISDIR(inode->i_mode)) {
1969 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1970 e2fsck_add_dir_info(ctx, ino, 0);
1971 ctx->fs_directory_count++;
1972 if (inode->i_flags & EXT4_CASEFOLD_FL)
1973 add_casefolded_dir(ctx, ino);
1974 } else if (LINUX_S_ISREG (inode->i_mode)) {
1975 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1976 ctx->fs_regular_count++;
1977 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1978 e2fsck_pass1_check_device_inode(fs, inode)) {
1979 check_extents_inlinedata(ctx, &pctx);
1980 check_immutable(ctx, &pctx);
1981 check_size(ctx, &pctx);
1982 ctx->fs_chardev_count++;
1983 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1984 e2fsck_pass1_check_device_inode(fs, inode)) {
1985 check_extents_inlinedata(ctx, &pctx);
1986 check_immutable(ctx, &pctx);
1987 check_size(ctx, &pctx);
1988 ctx->fs_blockdev_count++;
1989 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1990 e2fsck_pass1_check_symlink(fs, ino, inode,
1992 check_immutable(ctx, &pctx);
1993 ctx->fs_symlinks_count++;
1994 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1995 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1997 } else if (ext2fs_is_fast_symlink(inode)) {
1998 ctx->fs_fast_symlinks_count++;
1999 check_blocks(ctx, &pctx, block_buf,
2001 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2005 else if (LINUX_S_ISFIFO (inode->i_mode) &&
2006 e2fsck_pass1_check_device_inode(fs, inode)) {
2007 check_extents_inlinedata(ctx, &pctx);
2008 check_immutable(ctx, &pctx);
2009 check_size(ctx, &pctx);
2010 ctx->fs_fifo_count++;
2011 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
2012 e2fsck_pass1_check_device_inode(fs, inode)) {
2013 check_extents_inlinedata(ctx, &pctx);
2014 check_immutable(ctx, &pctx);
2015 check_size(ctx, &pctx);
2016 ctx->fs_sockets_count++;
2018 mark_inode_bad(ctx, ino);
2019 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2020 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
2021 if (inode->i_block[EXT2_IND_BLOCK])
2022 ctx->fs_ind_count++;
2023 if (inode->i_block[EXT2_DIND_BLOCK])
2024 ctx->fs_dind_count++;
2025 if (inode->i_block[EXT2_TIND_BLOCK])
2026 ctx->fs_tind_count++;
2028 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
2029 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
2030 (inode->i_block[EXT2_IND_BLOCK] ||
2031 inode->i_block[EXT2_DIND_BLOCK] ||
2032 inode->i_block[EXT2_TIND_BLOCK] ||
2033 ext2fs_file_acl_block(fs, inode))) {
2034 struct process_inode_block *itp;
2036 itp = &inodes_to_process[process_inode_count];
2038 itp->ea_ibody_quota = ea_ibody_quota;
2039 if (inode_size < sizeof(struct ext2_inode_large))
2040 memcpy(&itp->inode, inode, inode_size);
2042 memcpy(&itp->inode, inode, sizeof(itp->inode));
2043 process_inode_count++;
2045 check_blocks(ctx, &pctx, block_buf, &ea_ibody_quota);
2047 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
2049 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2052 if (process_inode_count >= ctx->process_inode_size) {
2053 process_inodes(ctx, block_buf);
2055 if (e2fsck_should_abort(ctx))
2059 process_inodes(ctx, block_buf);
2060 ext2fs_close_inode_scan(scan);
2063 reserve_block_for_root_repair(ctx);
2064 reserve_block_for_lnf_repair(ctx);
2067 * If any extended attribute blocks' reference counts need to
2068 * be adjusted, either up (ctx->refcount_extra), or down
2069 * (ctx->refcount), then fix them.
2071 if (ctx->refcount) {
2072 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
2073 ea_refcount_free(ctx->refcount);
2076 if (ctx->refcount_extra) {
2077 adjust_extattr_refcount(ctx, ctx->refcount_extra,
2079 ea_refcount_free(ctx->refcount_extra);
2080 ctx->refcount_extra = 0;
2083 if (ctx->ea_block_quota_blocks) {
2084 ea_refcount_free(ctx->ea_block_quota_blocks);
2085 ctx->ea_block_quota_blocks = 0;
2088 if (ctx->ea_block_quota_inodes) {
2089 ea_refcount_free(ctx->ea_block_quota_inodes);
2090 ctx->ea_block_quota_inodes = 0;
2093 if (ctx->invalid_bitmaps)
2094 handle_fs_bad_blocks(ctx);
2096 /* We don't need the block_ea_map any more */
2097 if (ctx->block_ea_map) {
2098 ext2fs_free_block_bitmap(ctx->block_ea_map);
2099 ctx->block_ea_map = 0;
2102 /* We don't need the encryption policy => ID map any more */
2103 destroy_encryption_policy_map(ctx);
2105 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
2106 clear_problem_context(&pctx);
2107 pctx.errcode = ext2fs_create_resize_inode(fs);
2109 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
2111 ctx->flags |= E2F_FLAG_ABORT;
2116 if (!pctx.errcode) {
2117 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
2119 inode->i_mtime = ctx->now;
2120 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
2123 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
2126 if (ctx->flags & E2F_FLAG_RESTART) {
2128 * Only the master copy of the superblock and block
2129 * group descriptors are going to be written during a
2130 * restart, so set the superblock to be used to be the
2131 * master superblock.
2133 ctx->use_superblock = 0;
2137 if (ctx->large_dirs && !ext2fs_has_feature_largedir(fs->super)) {
2138 if (fix_problem(ctx, PR_2_FEATURE_LARGE_DIRS, &pctx)) {
2139 ext2fs_set_feature_largedir(fs->super);
2140 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2141 ext2fs_mark_super_dirty(fs);
2143 if (fs->super->s_rev_level == EXT2_GOOD_OLD_REV &&
2144 fix_problem(ctx, PR_1_FS_REV_LEVEL, &pctx)) {
2145 ext2fs_update_dynamic_rev(fs);
2146 ext2fs_mark_super_dirty(fs);
2150 if (ctx->block_dup_map) {
2151 if (ctx->options & E2F_OPT_PREEN) {
2152 clear_problem_context(&pctx);
2153 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
2155 e2fsck_pass1_dupblocks(ctx, block_buf);
2157 ctx->flags |= E2F_FLAG_ALLOC_OK;
2159 e2fsck_use_inode_shortcuts(ctx, 0);
2160 ext2fs_free_mem(&inodes_to_process);
2161 inodes_to_process = 0;
2164 ext2fs_close_inode_scan(scan);
2166 ext2fs_free_mem(&block_buf);
2168 ext2fs_free_mem(&inode);
2171 * The l+f inode may have been cleared, so zap it now and
2172 * later passes will recalculate it if necessary
2174 ctx->lost_and_found = 0;
2176 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
2177 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
2179 ctx->invalid_bitmaps++;
2183 static errcode_t e2fsck_pass1_copy_bitmap(ext2_filsys fs, ext2fs_generic_bitmap *src,
2184 ext2fs_generic_bitmap *dest)
2188 ret = ext2fs_copy_bitmap(*src, dest);
2193 ext2fs_free_generic_bmap(*src);
2200 static errcode_t e2fsck_pass1_copy_fs(ext2_filsys dest, e2fsck_t src_context,
2205 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2207 dest->dblist->fs = dest;
2208 if (src->block_map) {
2209 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2214 if (src->inode_map) {
2215 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2221 if (src->badblocks) {
2222 retval = ext2fs_badblocks_copy(src->badblocks, &dest->badblocks);
2227 /* disable it for now */
2228 src_context->openfs_flags &= ~EXT2_FLAG_EXCLUSIVE;
2229 retval = ext2fs_open_channel(dest, src_context->io_options,
2230 src_context->io_manager,
2231 src_context->openfs_flags,
2232 src->io->block_size);
2236 /* Block size might not be default */
2237 io_channel_set_blksize(dest->io, src->io->block_size);
2238 ehandler_init(dest->io);
2240 assert(dest->io->magic == src->io->magic);
2241 assert(dest->io->manager == src->io->manager);
2242 assert(strcmp(dest->io->name, src->io->name) == 0);
2243 assert(dest->io->block_size == src->io->block_size);
2244 assert(dest->io->read_error == src->io->read_error);
2245 assert(dest->io->write_error == src->io->write_error);
2246 assert(dest->io->refcount == src->io->refcount);
2247 assert(dest->io->flags == src->io->flags);
2248 assert(dest->io->app_data == dest);
2249 assert(src->io->app_data == src);
2250 assert(dest->io->align == src->io->align);
2252 /* The data should be written to disk immediately */
2253 dest->io->flags |= CHANNEL_FLAGS_WRITETHROUGH;
2254 /* icache will be rebuilt if needed, so do not copy from @src */
2259 static int e2fsck_pass1_merge_fs(ext2_filsys dest, ext2_filsys src)
2261 struct ext2_inode_cache *icache = dest->icache;
2262 errcode_t retval = 0;
2264 io_channel dest_image_io;
2267 dest_image_io = dest->image_io;
2269 memcpy(dest, src, sizeof(struct struct_ext2_filsys));
2271 dest->image_io = dest_image_io;
2272 dest->icache = icache;
2274 dest->dblist->fs = dest;
2275 if (src->inode_map) {
2276 retval = e2fsck_pass1_copy_bitmap(dest, &src->inode_map,
2281 if (src->block_map) {
2282 retval = e2fsck_pass1_copy_bitmap(dest, &src->block_map,
2289 ext2fs_free_inode_cache(src->icache);
2293 if (src->badblocks) {
2294 retval = ext2fs_badblocks_copy(src->badblocks, &dest->badblocks);
2296 ext2fs_badblocks_list_free(src->badblocks);
2297 src->badblocks = NULL;
2300 io_channel_close(src->io);
2304 static errcode_t e2fsck_pass1_thread_prepare(e2fsck_t global_ctx, e2fsck_t *thread_ctx,
2308 e2fsck_t thread_context;
2309 ext2_filsys thread_fs;
2310 ext2_filsys global_fs = global_ctx->fs;
2311 struct e2fsck_thread *tinfo;
2313 assert(global_ctx->inode_used_map == NULL);
2314 assert(global_ctx->inode_dir_map == NULL);
2315 assert(global_ctx->inode_bb_map == NULL);
2316 assert(global_ctx->inode_imagic_map == NULL);
2317 assert(global_ctx->inode_reg_map == NULL);
2318 assert(global_ctx->inodes_to_rebuild == NULL);
2320 assert(global_ctx->block_found_map == NULL);
2321 assert(global_ctx->block_dup_map == NULL);
2322 assert(global_ctx->block_ea_map == NULL);
2323 assert(global_ctx->block_metadata_map == NULL);
2324 assert(global_ctx->fs->dblist == NULL);
2326 retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &thread_context);
2328 com_err(global_ctx->program_name, retval, "while allocating memory");
2331 memcpy(thread_context, global_ctx, sizeof(struct e2fsck_struct));
2332 thread_context->global_ctx = global_ctx;
2334 retval = ext2fs_get_mem(sizeof(struct struct_ext2_filsys), &thread_fs);
2336 com_err(global_ctx->program_name, retval, "while allocating memory");
2340 io_channel_flush_cleanup(global_fs->io);
2341 retval = e2fsck_pass1_copy_fs(thread_fs, global_ctx, global_fs);
2343 com_err(global_ctx->program_name, retval, "while copying fs");
2346 thread_fs->priv_data = thread_context;
2348 thread_context->thread_info.et_thread_index = thread_index;
2349 set_up_logging(thread_context);
2351 assert(thread_index == 0);
2352 tinfo = &thread_context->thread_info;
2353 tinfo->et_group_start = 0;
2354 tinfo->et_group_next = 0;
2355 tinfo->et_group_end = thread_fs->group_desc_count;
2357 thread_context->fs = thread_fs;
2358 *thread_ctx = thread_context;
2361 ext2fs_free_mem(&thread_fs);
2363 ext2fs_free_mem(&thread_context);
2367 static int e2fsck_pass1_thread_join_one(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2370 int flags = global_ctx->flags;
2371 ext2_filsys thread_fs = thread_ctx->fs;
2372 ext2_filsys global_fs = global_ctx->fs;
2373 FILE *global_logf = global_ctx->logf;
2374 FILE *global_problem_logf = global_ctx->problem_logf;
2375 #ifdef HAVE_SETJMP_H
2378 memcpy(old_jmp, global_ctx->abort_loc, sizeof(jmp_buf));
2380 memcpy(global_ctx, thread_ctx, sizeof(struct e2fsck_struct));
2381 #ifdef HAVE_SETJMP_H
2382 memcpy(global_ctx->abort_loc, old_jmp, sizeof(jmp_buf));
2384 /* Keep the global singal flags*/
2385 global_ctx->flags |= (flags & E2F_FLAG_SIGNAL_MASK) |
2386 (global_ctx->flags & E2F_FLAG_SIGNAL_MASK);
2388 retval = e2fsck_pass1_merge_fs(global_fs, thread_fs);
2390 com_err(global_ctx->program_name, 0, _("while merging fs\n"));
2393 global_fs->priv_data = global_ctx;
2394 global_ctx->fs = global_fs;
2395 global_ctx->logf = global_logf;
2396 global_ctx->problem_logf = global_problem_logf;
2398 if (thread_ctx->inode_used_map) {
2399 retval = e2fsck_pass1_copy_bitmap(global_fs,
2400 &thread_ctx->inode_used_map,
2401 &global_ctx->inode_used_map);
2405 if (thread_ctx->inode_bad_map) {
2406 retval = e2fsck_pass1_copy_bitmap(global_fs,
2407 &thread_ctx->inode_bad_map,
2408 &global_ctx->inode_bad_map);
2412 if (thread_ctx->inode_dir_map) {
2413 retval = e2fsck_pass1_copy_bitmap(global_fs,
2414 &thread_ctx->inode_dir_map,
2415 &global_ctx->inode_dir_map);
2419 if (thread_ctx->inode_bb_map) {
2420 retval = e2fsck_pass1_copy_bitmap(global_fs,
2421 &thread_ctx->inode_bb_map,
2422 &global_ctx->inode_bb_map);
2426 if (thread_ctx->inode_imagic_map) {
2427 retval = e2fsck_pass1_copy_bitmap(global_fs,
2428 &thread_ctx->inode_imagic_map,
2429 &global_ctx->inode_imagic_map);
2433 if (thread_ctx->inode_reg_map) {
2434 retval = e2fsck_pass1_copy_bitmap(global_fs,
2435 &thread_ctx->inode_reg_map,
2436 &global_ctx->inode_reg_map);
2440 if (thread_ctx->inodes_to_rebuild) {
2441 retval = e2fsck_pass1_copy_bitmap(global_fs,
2442 &thread_ctx->inodes_to_rebuild,
2443 &global_ctx->inodes_to_rebuild);
2447 if (thread_ctx->block_found_map) {
2448 retval = e2fsck_pass1_copy_bitmap(global_fs,
2449 &thread_ctx->block_found_map,
2450 &global_ctx->block_found_map);
2454 if (thread_ctx->block_dup_map) {
2455 retval = e2fsck_pass1_copy_bitmap(global_fs,
2456 &thread_ctx->block_dup_map,
2457 &global_ctx->block_dup_map);
2461 if (thread_ctx->block_ea_map) {
2462 retval = e2fsck_pass1_copy_bitmap(global_fs,
2463 &thread_ctx->block_ea_map,
2464 &global_ctx->block_ea_map);
2468 if (thread_ctx->block_metadata_map) {
2469 retval = e2fsck_pass1_copy_bitmap(global_fs,
2470 &thread_ctx->block_metadata_map,
2471 &global_ctx->block_metadata_map);
2479 static int e2fsck_pass1_thread_join(e2fsck_t global_ctx, e2fsck_t thread_ctx)
2483 retval = e2fsck_pass1_thread_join_one(global_ctx, thread_ctx);
2484 ext2fs_free_mem(&thread_ctx->fs);
2485 if (thread_ctx->logf)
2486 fclose(thread_ctx->logf);
2487 if (thread_ctx->problem_logf) {
2488 fputs("</problem_log>\n", thread_ctx->problem_logf);
2489 fclose(thread_ctx->problem_logf);
2491 ext2fs_free_mem(&thread_ctx);
2496 static int e2fsck_pass1_threads_join(struct e2fsck_thread_info *infos,
2497 int num_threads, e2fsck_t global_ctx)
2502 struct e2fsck_thread_info *pinfo;
2504 for (i = 0; i < num_threads; i++) {
2507 if (!pinfo->eti_started)
2510 rc = pthread_join(pinfo->eti_thread_id, NULL);
2512 com_err(global_ctx->program_name, rc,
2513 _("while joining thread\n"));
2517 e2fsck_pass1_thread_join(global_ctx, infos[i].eti_thread_ctx);
2524 static void *e2fsck_pass1_thread(void *arg)
2526 struct e2fsck_thread_info *info = arg;
2527 e2fsck_t thread_ctx = info->eti_thread_ctx;
2529 #ifdef HAVE_SETJMP_H
2531 * When fatal_error() happens, jump to here. The thread
2532 * context's flags will be saved, but its abort_loc will
2533 * be overwritten by original jump buffer for the later
2536 if (setjmp(thread_ctx->abort_loc)) {
2537 thread_ctx->flags &= ~E2F_FLAG_SETJMP_OK;
2540 thread_ctx->flags |= E2F_FLAG_SETJMP_OK;
2543 e2fsck_pass1_run(thread_ctx);
2549 static int e2fsck_pass1_threads_start(struct e2fsck_thread_info **pinfo,
2550 int num_threads, e2fsck_t global_ctx)
2552 struct e2fsck_thread_info *infos;
2553 pthread_attr_t attr;
2556 struct e2fsck_thread_info *tmp_pinfo;
2558 e2fsck_t thread_ctx;
2560 retval = pthread_attr_init(&attr);
2562 com_err(global_ctx->program_name, retval,
2563 _("while setting pthread attribute\n"));
2567 infos = calloc(num_threads, sizeof(struct e2fsck_thread_info));
2568 if (infos == NULL) {
2570 com_err(global_ctx->program_name, retval,
2571 _("while allocating memory for threads\n"));
2572 pthread_attr_destroy(&attr);
2576 for (i = 0; i < num_threads; i++) {
2577 tmp_pinfo = &infos[i];
2578 tmp_pinfo->eti_thread_index = i;
2579 retval = e2fsck_pass1_thread_prepare(global_ctx, &thread_ctx, i);
2581 com_err(global_ctx->program_name, retval,
2582 _("while preparing pass1 thread\n"));
2585 tmp_pinfo->eti_thread_ctx = thread_ctx;
2587 retval = pthread_create(&tmp_pinfo->eti_thread_id, &attr,
2588 &e2fsck_pass1_thread, tmp_pinfo);
2590 com_err(global_ctx->program_name, retval,
2591 _("while creating thread\n"));
2592 e2fsck_pass1_thread_join(global_ctx, thread_ctx);
2596 tmp_pinfo->eti_started = 1;
2599 /* destroy the thread attribute object, since it is no longer needed */
2600 ret = pthread_attr_destroy(&attr);
2602 com_err(global_ctx->program_name, ret,
2603 _("while destroying thread attribute\n"));
2609 e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2616 static void e2fsck_pass1_multithread(e2fsck_t global_ctx)
2618 struct e2fsck_thread_info *infos = NULL;
2619 int num_threads = 1;
2622 retval = e2fsck_pass1_threads_start(&infos, num_threads, global_ctx);
2624 com_err(global_ctx->program_name, retval,
2625 _("while starting pass1 threads\n"));
2629 retval = e2fsck_pass1_threads_join(infos, num_threads, global_ctx);
2631 com_err(global_ctx->program_name, retval,
2632 _("while joining pass1 threads\n"));
2637 global_ctx->flags |= E2F_FLAG_ABORT;
2642 void e2fsck_pass1(e2fsck_t ctx)
2646 e2fsck_pass1_multithread(ctx);
2648 e2fsck_pass1_run(ctx);
2652 #undef FINISH_INODE_LOOP
2655 * When the inode_scan routines call this callback at the end of the
2656 * glock group, call process_inodes.
2658 static errcode_t scan_callback(ext2_filsys fs,
2659 ext2_inode_scan scan EXT2FS_ATTR((unused)),
2660 dgrp_t group, void * priv_data)
2662 struct scan_callback_struct *scan_struct;
2664 struct e2fsck_thread *tinfo;
2666 scan_struct = (struct scan_callback_struct *) priv_data;
2667 ctx = scan_struct->ctx;
2669 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
2672 if ((ctx->progress)(ctx, 1, group+1,
2673 ctx->fs->group_desc_count))
2674 return EXT2_ET_CANCEL_REQUESTED;
2677 if (ctx->global_ctx) {
2678 tinfo = &ctx->thread_info;
2679 tinfo->et_group_next++;
2680 if (tinfo->et_group_next >= tinfo->et_group_end)
2681 return EXT2_ET_SCAN_FINISHED;
2689 * Process the inodes in the "inodes to process" list.
2691 static void process_inodes(e2fsck_t ctx, char *block_buf)
2694 struct ext2_inode *old_stashed_inode;
2695 ext2_ino_t old_stashed_ino;
2696 const char *old_operation;
2698 struct problem_context pctx;
2701 printf("begin process_inodes: ");
2703 if (process_inode_count == 0)
2705 old_operation = ehandler_operation(0);
2706 old_stashed_inode = ctx->stashed_inode;
2707 old_stashed_ino = ctx->stashed_ino;
2708 qsort(inodes_to_process, process_inode_count,
2709 sizeof(struct process_inode_block), process_inode_cmp);
2710 clear_problem_context(&pctx);
2711 for (i=0; i < process_inode_count; i++) {
2712 pctx.inode = ctx->stashed_inode =
2713 (struct ext2_inode *) &inodes_to_process[i].inode;
2714 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2717 printf("%u ", pctx.ino);
2719 sprintf(buf, _("reading indirect blocks of inode %u"),
2721 ehandler_operation(buf);
2722 check_blocks(ctx, &pctx, block_buf,
2723 &inodes_to_process[i].ea_ibody_quota);
2724 if (e2fsck_should_abort(ctx))
2727 ctx->stashed_inode = old_stashed_inode;
2728 ctx->stashed_ino = old_stashed_ino;
2729 process_inode_count = 0;
2731 printf("end process inodes\n");
2733 ehandler_operation(old_operation);
2736 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2738 const struct process_inode_block *ib_a =
2739 (const struct process_inode_block *) a;
2740 const struct process_inode_block *ib_b =
2741 (const struct process_inode_block *) b;
2744 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2745 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2748 * We only call process_inodes() for non-extent
2749 * inodes, so it's OK to pass NULL to
2750 * ext2fs_file_acl_block() here.
2752 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2753 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2755 ret = ib_a->ino - ib_b->ino;
2760 * Mark an inode as being bad in some what
2762 static void mark_inode_bad(e2fsck_t ctx, ext2_ino_t ino)
2764 struct problem_context pctx;
2766 if (!ctx->inode_bad_map) {
2767 clear_problem_context(&pctx);
2769 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2770 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
2771 "inode_bad_map", &ctx->inode_bad_map);
2774 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2775 /* Should never get here */
2776 ctx->flags |= E2F_FLAG_ABORT;
2780 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2783 static void add_casefolded_dir(e2fsck_t ctx, ext2_ino_t ino)
2785 struct problem_context pctx;
2787 if (!ctx->casefolded_dirs) {
2788 pctx.errcode = ext2fs_u32_list_create(&ctx->casefolded_dirs, 0);
2792 pctx.errcode = ext2fs_u32_list_add(ctx->casefolded_dirs, ino);
2793 if (pctx.errcode == 0)
2796 fix_problem(ctx, PR_1_ALLOCATE_CASEFOLDED_DIRLIST, &pctx);
2797 /* Should never get here */
2798 ctx->flags |= E2F_FLAG_ABORT;
2802 * This procedure will allocate the inode "bb" (badblock) map table
2804 static void alloc_bb_map(e2fsck_t ctx)
2806 struct problem_context pctx;
2808 clear_problem_context(&pctx);
2809 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2810 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2811 "inode_bb_map", &ctx->inode_bb_map);
2814 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2815 /* Should never get here */
2816 ctx->flags |= E2F_FLAG_ABORT;
2822 * This procedure will allocate the inode imagic table
2824 static void alloc_imagic_map(e2fsck_t ctx)
2826 struct problem_context pctx;
2828 clear_problem_context(&pctx);
2829 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2830 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
2831 "inode_imagic_map", &ctx->inode_imagic_map);
2834 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2835 /* Should never get here */
2836 ctx->flags |= E2F_FLAG_ABORT;
2842 * Marks a block as in use, setting the dup_map if it's been set
2843 * already. Called by process_block and process_bad_block.
2845 * WARNING: Assumes checks have already been done to make sure block
2846 * is valid. This is true in both process_block and process_bad_block.
2848 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
2850 struct problem_context pctx;
2852 clear_problem_context(&pctx);
2854 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
2855 if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
2856 !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
2859 if (!ctx->block_dup_map) {
2860 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
2861 _("multiply claimed block map"),
2862 EXT2FS_BMAP64_RBTREE, "block_dup_map",
2863 &ctx->block_dup_map);
2866 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
2868 /* Should never get here */
2869 ctx->flags |= E2F_FLAG_ABORT;
2873 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
2875 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
2880 * When cluster size is greater than one block, it is caller's responsibility
2881 * to make sure block parameter starts at a cluster boundary.
2883 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
2886 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
2887 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
2891 for (i = 0; i < num; i += EXT2FS_CLUSTER_RATIO(ctx->fs))
2892 mark_block_used(ctx, block + i);
2897 * Adjust the extended attribute block's reference counts at the end
2898 * of pass 1, either by subtracting out references for EA blocks that
2899 * are still referenced in ctx->refcount, or by adding references for
2900 * EA blocks that had extra references as accounted for in
2901 * ctx->refcount_extra.
2903 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
2904 char *block_buf, int adjust_sign)
2906 struct ext2_ext_attr_header *header;
2907 struct problem_context pctx;
2908 ext2_filsys fs = ctx->fs;
2913 clear_problem_context(&pctx);
2915 ea_refcount_intr_begin(refcount);
2917 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
2920 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
2923 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
2926 header = (struct ext2_ext_attr_header *) block_buf;
2927 pctx.blkcount = header->h_refcount;
2928 should_be = header->h_refcount + adjust_sign * (int)count;
2929 pctx.num = should_be;
2930 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
2931 header->h_refcount = should_be;
2932 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
2936 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
2945 * Handle processing the extended attribute blocks
2947 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
2948 char *block_buf, struct ea_quota *ea_block_quota)
2950 ext2_filsys fs = ctx->fs;
2951 ext2_ino_t ino = pctx->ino;
2952 struct ext2_inode *inode = pctx->inode;
2955 struct ext2_ext_attr_header *header;
2956 struct ext2_ext_attr_entry *first, *entry;
2957 blk64_t quota_blocks = EXT2FS_C2B(fs, 1);
2958 __u64 quota_inodes = 0;
2959 region_t region = 0;
2960 int failed_csum = 0;
2962 ea_block_quota->blocks = 0;
2963 ea_block_quota->inodes = 0;
2965 blk = ext2fs_file_acl_block(fs, inode);
2970 * If the Extended attribute flag isn't set, then a non-zero
2971 * file acl means that the inode is corrupted.
2973 * Or if the extended attribute block is an invalid block,
2974 * then the inode is also corrupted.
2976 if (!ext2fs_has_feature_xattr(fs->super) ||
2977 (blk < fs->super->s_first_data_block) ||
2978 (blk >= ext2fs_blocks_count(fs->super))) {
2979 mark_inode_bad(ctx, ino);
2983 /* If ea bitmap hasn't been allocated, create it */
2984 if (!ctx->block_ea_map) {
2985 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
2986 _("ext attr block map"),
2987 EXT2FS_BMAP64_RBTREE, "block_ea_map",
2988 &ctx->block_ea_map);
2989 if (pctx->errcode) {
2991 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
2992 ctx->flags |= E2F_FLAG_ABORT;
2997 /* Create the EA refcount structure if necessary */
2998 if (!ctx->refcount) {
2999 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
3000 if (pctx->errcode) {
3002 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3003 ctx->flags |= E2F_FLAG_ABORT;
3009 /* Debugging text */
3010 printf("Inode %u has EA block %u\n", ino, blk);
3013 /* Have we seen this EA block before? */
3014 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
3015 ea_block_quota->blocks = EXT2FS_C2B(fs, 1);
3016 ea_block_quota->inodes = 0;
3018 if (ctx->ea_block_quota_blocks) {
3019 ea_refcount_fetch(ctx->ea_block_quota_blocks, blk,
3022 ea_block_quota->blocks = quota_blocks;
3025 if (ctx->ea_block_quota_inodes)
3026 ea_refcount_fetch(ctx->ea_block_quota_inodes, blk,
3027 &ea_block_quota->inodes);
3029 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
3031 /* Ooops, this EA was referenced more than it stated */
3032 if (!ctx->refcount_extra) {
3033 pctx->errcode = ea_refcount_create(0,
3034 &ctx->refcount_extra);
3035 if (pctx->errcode) {
3037 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3038 ctx->flags |= E2F_FLAG_ABORT;
3042 ea_refcount_increment(ctx->refcount_extra, blk, 0);
3047 * OK, we haven't seen this EA block yet. So we need to
3051 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
3052 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
3055 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
3058 if (pctx->errcode &&
3059 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
3063 header = (struct ext2_ext_attr_header *) block_buf;
3064 pctx->blk = ext2fs_file_acl_block(fs, inode);
3065 if (((ctx->ext_attr_ver == 1) &&
3066 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
3067 ((ctx->ext_attr_ver == 2) &&
3068 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
3069 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
3073 if (header->h_blocks != 1) {
3074 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
3078 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
3081 region = region_create(0, fs->blocksize);
3083 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
3084 ctx->flags |= E2F_FLAG_ABORT;
3087 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
3088 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3092 first = (struct ext2_ext_attr_entry *)(header+1);
3093 end = block_buf + fs->blocksize;
3095 while ((char *)entry < end && *(__u32 *)entry) {
3098 if (region_allocate(region, (char *)entry - (char *)header,
3099 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
3100 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3104 if ((ctx->ext_attr_ver == 1 &&
3105 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
3106 (ctx->ext_attr_ver == 2 &&
3107 entry->e_name_index == 0)) {
3108 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
3112 if (entry->e_value_inum == 0) {
3113 if (entry->e_value_size > EXT2_XATTR_SIZE_MAX ||
3114 (entry->e_value_offs + entry->e_value_size >
3116 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
3120 if (entry->e_value_size &&
3121 region_allocate(region, entry->e_value_offs,
3122 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
3123 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
3128 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
3129 entry->e_value_offs);
3130 if (entry->e_hash != hash)
3131 hash = ext2fs_ext_attr_hash_entry_signed(entry,
3132 block_buf + entry->e_value_offs);
3134 if (entry->e_hash != hash) {
3135 pctx->num = entry->e_hash;
3136 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
3138 entry->e_hash = hash;
3142 blk64_t entry_quota_blocks;
3144 problem = check_large_ea_inode(ctx, entry, pctx,
3145 &entry_quota_blocks);
3146 if (problem && fix_problem(ctx, problem, pctx))
3149 quota_blocks += entry_quota_blocks;
3153 entry = EXT2_EXT_ATTR_NEXT(entry);
3155 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
3156 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
3159 region_free(region);
3162 * We only get here if there was no other errors that were fixed.
3163 * If there was a checksum fail, ask to correct it.
3166 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
3167 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
3173 if (quota_blocks != EXT2FS_C2B(fs, 1U)) {
3174 if (!ctx->ea_block_quota_blocks) {
3175 pctx->errcode = ea_refcount_create(0,
3176 &ctx->ea_block_quota_blocks);
3177 if (pctx->errcode) {
3182 ea_refcount_store(ctx->ea_block_quota_blocks, blk,
3187 if (!ctx->ea_block_quota_inodes) {
3188 pctx->errcode = ea_refcount_create(0,
3189 &ctx->ea_block_quota_inodes);
3190 if (pctx->errcode) {
3193 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
3194 ctx->flags |= E2F_FLAG_ABORT;
3199 ea_refcount_store(ctx->ea_block_quota_inodes, blk,
3202 ea_block_quota->blocks = quota_blocks;
3203 ea_block_quota->inodes = quota_inodes;
3205 inc_ea_inode_refs(ctx, pctx, first, end);
3206 ea_refcount_store(ctx->refcount, blk, header->h_refcount - 1);
3207 mark_block_used(ctx, blk);
3208 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
3213 region_free(region);
3214 ext2fs_file_acl_block_set(fs, inode, 0);
3215 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
3219 /* Returns 1 if bad htree, 0 if OK */
3220 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
3221 ext2_ino_t ino, struct ext2_inode *inode,
3224 struct ext2_dx_root_info *root;
3225 ext2_filsys fs = ctx->fs;
3229 if ((!LINUX_S_ISDIR(inode->i_mode) &&
3230 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
3231 (!ext2fs_has_feature_dir_index(fs->super) &&
3232 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
3235 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
3237 if ((pctx->errcode) ||
3239 (blk < fs->super->s_first_data_block) ||
3240 (blk >= ext2fs_blocks_count(fs->super))) {
3241 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3247 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
3248 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3251 /* XXX should check that beginning matches a directory */
3252 root = (struct ext2_dx_root_info *) (block_buf + 24);
3254 if ((root->reserved_zero || root->info_length < 8) &&
3255 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
3258 pctx->num = root->hash_version;
3259 if ((root->hash_version != EXT2_HASH_LEGACY) &&
3260 (root->hash_version != EXT2_HASH_HALF_MD4) &&
3261 (root->hash_version != EXT2_HASH_TEA) &&
3262 (root->hash_version != EXT2_HASH_SIPHASH) &&
3263 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
3266 if (ext4_hash_in_dirent(inode)) {
3267 if (root->hash_version != EXT2_HASH_SIPHASH &&
3268 fix_problem(ctx, PR_1_HTREE_NEEDS_SIPHASH, pctx))
3271 if (root->hash_version == EXT2_HASH_SIPHASH &&
3272 fix_problem(ctx, PR_1_HTREE_CANNOT_SIPHASH, pctx))
3276 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
3277 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
3280 pctx->num = root->indirect_levels;
3281 /* if htree level is clearly too high, consider it to be broken */
3282 if (root->indirect_levels > EXT4_HTREE_LEVEL &&
3283 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3286 /* if level is only maybe too high, LARGE_DIR feature could be unset */
3287 if (root->indirect_levels > ext2_dir_htree_level(fs) &&
3288 !ext2fs_has_feature_largedir(fs->super)) {
3289 int blockbits = EXT2_BLOCK_SIZE_BITS(fs->super) + 10;
3290 unsigned idx_pb = 1 << (blockbits - 3);
3292 /* compare inode size/blocks vs. max-sized 2-level htree */
3293 if (EXT2_I_SIZE(pctx->inode) <
3294 (idx_pb - 1) * (idx_pb - 2) << blockbits &&
3295 pctx->inode->i_blocks <
3296 (idx_pb - 1) * (idx_pb - 2) << (blockbits - 9) &&
3297 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
3301 if (root->indirect_levels > EXT4_HTREE_LEVEL_COMPAT ||
3302 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3308 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
3309 struct ext2_inode *inode, int restart_flag,
3313 inode->i_links_count = 0;
3314 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
3315 inode->i_dtime = ctx->now;
3318 * If a special inode has such rotten block mappings that we
3319 * want to clear the whole inode, be sure to actually zap
3320 * the block maps because i_links_count isn't checked for
3321 * special inodes, and we'll end up right back here the next
3324 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
3325 memset(inode->i_block, 0, sizeof(inode->i_block));
3327 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
3328 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
3329 if (ctx->inode_reg_map)
3330 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
3331 if (ctx->inode_bad_map)
3332 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
3335 * If the inode was partially accounted for before processing
3336 * was aborted, we need to restart the pass 1 scan.
3338 ctx->flags |= restart_flag;
3340 if (ino == EXT2_BAD_INO)
3341 memset(inode, 0, sizeof(struct ext2_inode));
3343 e2fsck_write_inode(ctx, ino, inode, source);
3347 * Use the multiple-blocks reclamation code to fix alignment problems in
3348 * a bigalloc filesystem. We want a logical cluster to map to *only* one
3349 * physical cluster, and we want the block offsets within that cluster to
3352 static int has_unaligned_cluster_map(e2fsck_t ctx,
3353 blk64_t last_pblk, blk64_t last_lblk,
3354 blk64_t pblk, blk64_t lblk)
3356 blk64_t cluster_mask;
3358 if (!ctx->fs->cluster_ratio_bits)
3360 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
3363 * If the block in the logical cluster doesn't align with the block in
3364 * the physical cluster...
3366 if ((lblk & cluster_mask) != (pblk & cluster_mask))
3370 * If we cross a physical cluster boundary within a logical cluster...
3372 if (last_pblk && (lblk & cluster_mask) != 0 &&
3373 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
3374 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
3380 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
3381 struct process_block_struct *pb,
3382 blk64_t start_block, blk64_t end_block,
3384 ext2_extent_handle_t ehandle,
3387 struct ext2fs_extent extent;
3388 blk64_t blk, last_lblk;
3390 int is_dir, is_leaf;
3392 struct ext2_extent_info info;
3393 int failed_csum = 0;
3395 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
3398 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
3401 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
3402 !pb->eti.force_rebuild &&
3403 info.curr_level < MAX_EXTENT_DEPTH_COUNT) {
3404 struct extent_tree_level *etl;
3406 etl = pb->eti.ext_info + info.curr_level;
3407 etl->num_extents += info.num_entries;
3408 etl->max_extents += info.max_entries;
3410 * Implementation wart: Splitting extent blocks when appending
3411 * will leave the old block with one free entry. Therefore
3412 * unless the node is totally full, pretend that a non-root
3413 * extent block can hold one fewer entry than it actually does,
3414 * so that we don't repeatedly rebuild the extent tree.
3416 if (info.curr_level && info.num_entries < info.max_entries)
3420 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
3422 while ((pctx->errcode == 0 ||
3423 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
3424 info.num_entries-- > 0) {
3425 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
3426 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
3427 last_lblk = extent.e_lblk + extent.e_len - 1;
3430 pctx->blk = extent.e_pblk;
3431 pctx->blk2 = extent.e_lblk;
3432 pctx->num = extent.e_len;
3433 pctx->blkcount = extent.e_lblk + extent.e_len;
3435 if (extent.e_pblk == 0 ||
3436 extent.e_pblk < ctx->fs->super->s_first_data_block ||
3437 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
3438 problem = PR_1_EXTENT_BAD_START_BLK;
3439 else if (extent.e_lblk < start_block)
3440 problem = PR_1_OUT_OF_ORDER_EXTENTS;
3441 else if ((end_block && last_lblk > end_block) &&
3442 !(last_lblk > eof_block &&
3443 ((extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) ||
3444 (pctx->inode->i_flags & EXT4_VERITY_FL))))
3445 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
3446 else if (is_leaf && extent.e_len == 0)
3447 problem = PR_1_EXTENT_LENGTH_ZERO;
3449 (extent.e_pblk + extent.e_len) >
3450 ext2fs_blocks_count(ctx->fs->super))
3451 problem = PR_1_EXTENT_ENDS_BEYOND;
3452 else if (is_leaf && is_dir && !pctx->inode->i_size_high &&
3453 !ext2fs_has_feature_largedir(ctx->fs->super) &&
3454 ((extent.e_lblk + extent.e_len) >
3455 (1U << (21 - ctx->fs->super->s_log_block_size))))
3456 problem = PR_1_TOOBIG_DIR;
3458 if (is_leaf && problem == 0 && extent.e_len > 0) {
3460 printf("extent_region(ino=%u, expect=%llu, "
3461 "lblk=%llu, len=%u)\n", pb->ino,
3462 (unsigned long long) pb->next_lblock,
3463 (unsigned long long) extent.e_lblk,
3466 if (extent.e_lblk < pb->next_lblock)
3467 problem = PR_1_EXTENT_COLLISION;
3468 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
3469 pb->next_lblock = extent.e_lblk + extent.e_len;
3473 * Uninitialized blocks in a directory? Clear the flag and
3474 * we'll interpret the blocks later.
3476 if (try_repairs && is_dir && problem == 0 &&
3477 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3478 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
3479 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3480 pb->inode_modified = 1;
3481 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3487 #ifdef CONFIG_DEVELOPER_FEATURES
3488 if (try_repairs && !is_dir && problem == 0 &&
3489 (ctx->options & E2F_OPT_CLEAR_UNINIT) &&
3490 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
3491 fix_problem(ctx, PR_1_CLEAR_UNINIT_EXTENT, pctx)) {
3492 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
3493 pb->inode_modified = 1;
3494 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
3501 if (try_repairs && problem) {
3503 if (fix_problem(ctx, problem, pctx)) {
3504 if (ctx->invalid_bitmaps) {
3506 * If fsck knows the bitmaps are bad,
3507 * skip to the next extent and
3508 * try to clear this extent again
3509 * after fixing the bitmaps, by
3512 pctx->errcode = ext2fs_extent_get(
3514 EXT2_EXTENT_NEXT_SIB,
3516 ctx->flags |= E2F_FLAG_RESTART_LATER;
3517 if (pctx->errcode ==
3518 EXT2_ET_NO_CURRENT_NODE) {
3524 e2fsck_read_bitmaps(ctx);
3525 pb->inode_modified = 1;
3527 ext2fs_extent_delete(ehandle, 0);
3528 if (pctx->errcode) {
3529 pctx->str = "ext2fs_extent_delete";
3532 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3533 if (pctx->errcode &&
3534 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
3535 pctx->str = "ext2fs_extent_fix_parents";
3538 pctx->errcode = ext2fs_extent_get(ehandle,
3539 EXT2_EXTENT_CURRENT,
3541 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
3552 blk64_t lblk = extent.e_lblk;
3553 int next_try_repairs = 1;
3555 blk = extent.e_pblk;
3558 * If this lower extent block collides with critical
3559 * metadata, don't try to repair the damage. Pass 1b
3560 * will reallocate the block; then we can try again.
3562 if (pb->ino != EXT2_RESIZE_INO &&
3563 extent.e_pblk < ctx->fs->super->s_blocks_count &&
3564 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3566 next_try_repairs = 0;
3569 PR_1_CRITICAL_METADATA_COLLISION,
3571 if ((ctx->options & E2F_OPT_NO) == 0)
3572 ctx->flags |= E2F_FLAG_RESTART_LATER;
3574 pctx->errcode = ext2fs_extent_get(ehandle,
3575 EXT2_EXTENT_DOWN, &extent);
3576 if (pctx->errcode &&
3577 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
3578 pctx->str = "EXT2_EXTENT_DOWN";
3579 problem = PR_1_EXTENT_HEADER_INVALID;
3580 if (!next_try_repairs)
3582 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
3583 goto report_problem;
3586 /* The next extent should match this index's logical start */
3587 if (extent.e_lblk != lblk) {
3588 struct ext2_extent_info e_info;
3590 pctx->errcode = ext2fs_extent_get_info(ehandle,
3592 if (pctx->errcode) {
3593 pctx->str = "ext2fs_extent_get_info";
3597 pctx->blk2 = extent.e_lblk;
3598 pctx->num = e_info.curr_level - 1;
3599 problem = PR_1_EXTENT_INDEX_START_INVALID;
3600 if (fix_problem(ctx, problem, pctx)) {
3601 pb->inode_modified = 1;
3603 ext2fs_extent_fix_parents(ehandle);
3604 if (pctx->errcode) {
3605 pctx->str = "ext2fs_extent_fix_parents";
3610 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
3611 last_lblk, eof_block, ehandle,
3615 pctx->errcode = ext2fs_extent_get(ehandle,
3616 EXT2_EXTENT_UP, &extent);
3617 if (pctx->errcode) {
3618 pctx->str = "EXT2_EXTENT_UP";
3621 mark_block_used(ctx, blk);
3626 if ((pb->previous_block != 0) &&
3627 (pb->previous_block+1 != extent.e_pblk)) {
3628 if (ctx->options & E2F_OPT_FRAGCHECK) {
3633 else if (pb->is_reg)
3636 printf(("%6lu(%c): expecting %6lu "
3638 "phys %6lu log %lu len %lu\n"),
3639 (unsigned long) pctx->ino, type,
3640 (unsigned long) pb->previous_block+1,
3641 (unsigned long) extent.e_pblk,
3642 (unsigned long) extent.e_lblk,
3643 (unsigned long) extent.e_len);
3648 * If we notice a gap in the logical block mappings of an
3649 * extent-mapped directory, offer to close the hole by
3650 * moving the logical block down, otherwise we'll go mad in
3651 * pass 3 allocating empty directory blocks to fill the hole.
3653 if (try_repairs && is_dir &&
3654 pb->last_block + 1 < extent.e_lblk) {
3657 new_lblk = pb->last_block + 1;
3658 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
3659 new_lblk = ((new_lblk +
3660 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
3661 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
3663 EXT2FS_CLUSTER_MASK(ctx->fs));
3664 pctx->blk = extent.e_lblk;
3665 pctx->blk2 = new_lblk;
3666 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
3667 extent.e_lblk = new_lblk;
3668 pb->inode_modified = 1;
3669 pctx->errcode = ext2fs_extent_replace(ehandle,
3671 if (pctx->errcode) {
3675 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
3677 goto failed_add_dir_block;
3678 pctx->errcode = ext2fs_extent_goto(ehandle,
3681 goto failed_add_dir_block;
3682 last_lblk = extent.e_lblk + extent.e_len - 1;
3688 while (++pb->last_db_block <
3689 (e2_blkcnt_t) extent.e_lblk) {
3690 pctx->errcode = ext2fs_add_dir_block2(
3694 if (pctx->errcode) {
3696 pctx->num = pb->last_db_block;
3697 goto failed_add_dir_block;
3701 for (i = 0; i < extent.e_len; i++) {
3702 pctx->errcode = ext2fs_add_dir_block2(
3707 if (pctx->errcode) {
3708 pctx->blk = extent.e_pblk + i;
3709 pctx->num = extent.e_lblk + i;
3710 failed_add_dir_block:
3711 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3712 /* Should never get here */
3713 ctx->flags |= E2F_FLAG_ABORT;
3717 if (extent.e_len > 0)
3718 pb->last_db_block = extent.e_lblk + extent.e_len - 1;
3720 if (has_unaligned_cluster_map(ctx, pb->previous_block,
3724 for (i = 0; i < extent.e_len; i++) {
3725 pctx->blk = extent.e_lblk + i;
3726 pctx->blk2 = extent.e_pblk + i;
3727 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3728 mark_block_used(ctx, extent.e_pblk + i);
3729 mark_block_used(ctx, extent.e_pblk + i);
3734 * Check whether first cluster got marked in previous iteration.
3736 if (ctx->fs->cluster_ratio_bits &&
3737 pb->previous_block &&
3738 (EXT2FS_B2C(ctx->fs, extent.e_pblk) ==
3739 EXT2FS_B2C(ctx->fs, pb->previous_block)))
3740 /* Set blk to the beginning of next cluster. */
3743 EXT2FS_B2C(ctx->fs, extent.e_pblk) + 1);
3745 /* Set blk to the beginning of current cluster. */
3746 blk = EXT2FS_C2B(ctx->fs,
3747 EXT2FS_B2C(ctx->fs, extent.e_pblk));
3749 if (blk < extent.e_pblk + extent.e_len) {
3750 mark_blocks_used(ctx, blk,
3751 extent.e_pblk + extent.e_len - blk);
3752 n = DIV_ROUND_UP(extent.e_pblk + extent.e_len - blk,
3753 EXT2FS_CLUSTER_RATIO(ctx->fs));
3754 pb->num_blocks += n;
3756 pb->last_block = extent.e_lblk + extent.e_len - 1;
3757 pb->previous_block = extent.e_pblk + extent.e_len - 1;
3758 start_block = pb->last_block = last_lblk;
3759 if (is_leaf && !is_dir &&
3760 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
3761 pb->last_init_lblock = last_lblk;
3763 pctx->errcode = ext2fs_extent_get(ehandle,
3764 EXT2_EXTENT_NEXT_SIB,
3768 /* Failed csum but passes checks? Ask to fix checksum. */
3770 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
3771 pb->inode_modified = 1;
3772 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
3777 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
3781 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
3782 struct process_block_struct *pb)
3784 struct ext2_extent_info info;
3785 struct ext2_inode *inode = pctx->inode;
3786 ext2_extent_handle_t ehandle;
3787 ext2_filsys fs = ctx->fs;
3788 ext2_ino_t ino = pctx->ino;
3791 struct ext3_extent_header *eh;
3793 /* Check for a proper extent header... */
3794 eh = (struct ext3_extent_header *) &inode->i_block[0];
3795 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
3797 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
3798 e2fsck_clear_inode(ctx, ino, inode, 0,
3799 "check_blocks_extents");
3804 /* ...since this function doesn't fail if i_block is zeroed. */
3805 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
3806 if (pctx->errcode) {
3807 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
3808 e2fsck_clear_inode(ctx, ino, inode, 0,
3809 "check_blocks_extents");
3814 retval = ext2fs_extent_get_info(ehandle, &info);
3816 int max_depth = info.max_depth;
3818 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
3819 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
3820 ctx->extent_depth_count[max_depth]++;
3823 /* Check maximum extent depth */
3824 pctx->blk = info.max_depth;
3825 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
3826 if (pctx->blk2 < pctx->blk &&
3827 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
3828 pb->eti.force_rebuild = 1;
3830 /* Can we collect extent tree level stats? */
3831 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
3832 if (pctx->blk2 > pctx->blk)
3833 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
3834 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
3835 pb->eti.ino = pb->ino;
3837 pb->next_lblock = 0;
3839 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
3840 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
3841 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
3842 if (pctx->errcode &&
3843 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
3845 inode->i_blocks = 0;
3846 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3847 "check_blocks_extents");
3850 ext2fs_extent_free(ehandle);
3852 /* Rebuild unless it's a dir and we're rehashing it */
3853 if (LINUX_S_ISDIR(inode->i_mode) &&
3854 e2fsck_dir_will_be_rehashed(ctx, ino))
3857 if (ctx->options & E2F_OPT_CONVERT_BMAP)
3858 e2fsck_rebuild_extents_later(ctx, ino);
3860 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
3864 * In fact we don't need to check blocks for an inode with inline data
3865 * because this inode doesn't have any blocks. In this function all
3866 * we need to do is add this inode into dblist when it is a directory.
3868 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
3869 struct process_block_struct *pb)
3872 size_t inline_data_size = 0;
3879 /* Process the dirents in i_block[] as the "first" block. */
3880 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
3884 /* Process the dirents in the EA as a "second" block. */
3885 flags = ctx->fs->flags;
3886 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3887 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
3889 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3890 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3891 if (pctx->errcode) {
3896 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
3899 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
3907 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3908 ctx->flags |= E2F_FLAG_ABORT;
3912 * This subroutine is called on each inode to account for all of the
3913 * blocks used by that inode.
3915 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
3916 char *block_buf, const struct ea_quota *ea_ibody_quota)
3918 ext2_filsys fs = ctx->fs;
3919 struct process_block_struct pb;
3920 ext2_ino_t ino = pctx->ino;
3921 struct ext2_inode *inode = pctx->inode;
3922 unsigned bad_size = 0;
3923 int dirty_inode = 0;
3927 struct ea_quota ea_block_quota;
3930 pb.num_blocks = EXT2FS_B2C(ctx->fs,
3931 ea_ibody_quota ? ea_ibody_quota->blocks : 0);
3933 pb.last_init_lblock = -1;
3934 pb.last_db_block = -1;
3935 pb.num_illegal_blocks = 0;
3936 pb.suppress = 0; pb.clear = 0;
3939 pb.previous_block = 0;
3940 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
3941 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
3942 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
3946 pb.inode_modified = 0;
3947 pb.eti.force_rebuild = 0;
3951 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
3952 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
3954 if (check_ext_attr(ctx, pctx, block_buf, &ea_block_quota)) {
3955 if (e2fsck_should_abort(ctx))
3957 pb.num_blocks += EXT2FS_B2C(ctx->fs, ea_block_quota.blocks);
3960 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
3961 check_blocks_inline_data(ctx, pctx, &pb);
3962 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
3963 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
3964 check_blocks_extents(ctx, pctx, &pb);
3968 * If we've modified the inode, write it out before
3969 * iterate() tries to use it.
3972 e2fsck_write_inode(ctx, ino, inode,
3977 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3978 pctx->errcode = ext2fs_block_iterate3(fs, ino,
3979 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
3980 block_buf, process_block, &pb);
3982 * We do not have uninitialized extents in non extent
3985 pb.last_init_lblock = pb.last_block;
3987 * If iterate() changed a block mapping, we have to
3988 * re-read the inode. If we decide to clear the
3989 * inode after clearing some stuff, we'll re-write the
3990 * bad mappings into the inode!
3992 if (pb.inode_modified)
3993 e2fsck_read_inode(ctx, ino, inode,
3995 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3996 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3998 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
4000 printf("bmap rebuild ino=%d\n", ino);
4002 if (!LINUX_S_ISDIR(inode->i_mode) ||
4003 !e2fsck_dir_will_be_rehashed(ctx, ino))
4004 e2fsck_rebuild_extents_later(ctx, ino);
4008 end_problem_latch(ctx, PR_LATCH_BLOCK);
4009 end_problem_latch(ctx, PR_LATCH_TOOBIG);
4010 if (e2fsck_should_abort(ctx))
4013 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
4015 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
4016 if (LINUX_S_ISDIR(inode->i_mode))
4017 ctx->fs_fragmented_dir++;
4019 ctx->fs_fragmented++;
4023 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
4028 if (inode->i_flags & EXT2_INDEX_FL) {
4029 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
4030 inode->i_flags &= ~EXT2_INDEX_FL;
4033 e2fsck_add_dx_dir(ctx, ino, inode, pb.last_block+1);
4037 if (!pb.num_blocks && pb.is_dir &&
4038 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
4039 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
4040 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
4041 ctx->fs_directory_count--;
4046 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
4047 ino != fs->super->s_orphan_file_inum &&
4048 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) &&
4049 !(inode->i_flags & EXT4_EA_INODE_FL)) {
4050 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
4052 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
4053 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
4054 ino, (ea_ibody_quota ?
4055 ea_ibody_quota->inodes : 0) +
4056 ea_block_quota.inodes + 1);
4059 if (!ext2fs_has_feature_huge_file(fs->super) ||
4060 !(inode->i_flags & EXT4_HUGE_FILE_FL))
4061 pb.num_blocks *= (fs->blocksize / 512);
4062 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
4064 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
4065 ino, inode->i_size, (unsigned long long) pb.last_block,
4066 (unsigned long long) ext2fs_inode_i_blocks(fs, inode),
4067 (unsigned long long) pb.num_blocks);
4069 size = EXT2_I_SIZE(inode);
4071 unsigned nblock = size >> EXT2_BLOCK_SIZE_BITS(fs->super);
4072 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
4077 flags = ctx->fs->flags;
4078 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
4079 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
4081 ctx->fs->flags = (flags &
4082 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
4084 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
4085 if (err || sz != size) {
4089 } else if (size & (fs->blocksize - 1))
4091 else if (nblock > (pb.last_block + 1))
4093 else if (nblock < (pb.last_block + 1)) {
4094 if (((pb.last_block + 1) - nblock) >
4095 fs->super->s_prealloc_dir_blocks)
4099 if ((pb.last_init_lblock >= 0) &&
4100 /* Do not allow initialized allocated blocks past i_size*/
4101 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
4102 !(inode->i_flags & EXT4_VERITY_FL))
4104 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4105 size > ext2_max_sizes[fs->super->s_log_block_size])
4106 /* too big for a direct/indirect-mapped file */
4108 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
4110 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
4111 /* too big for an extent-based file - 32bit ee_block */
4114 /* i_size for symlinks is checked elsewhere */
4115 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
4116 /* Did inline_data set pctx->num earlier? */
4118 pctx->num = (pb.last_block + 1) * fs->blocksize;
4119 pctx->group = bad_size;
4120 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
4121 ext2fs_inode_size_set(fs, inode, pctx->num);
4122 if (EXT2_I_SIZE(inode) == 0 &&
4123 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
4124 memset(inode->i_block, 0,
4125 sizeof(inode->i_block));
4126 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
4132 if (LINUX_S_ISREG(inode->i_mode) &&
4133 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
4135 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
4136 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
4137 (ext2fs_has_feature_huge_file(fs->super) &&
4138 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
4139 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
4140 pctx->num = pb.num_blocks;
4141 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
4142 inode->i_blocks = pb.num_blocks;
4143 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
4150 * The kernel gets mad if we ask it to allocate bigalloc clusters to
4151 * a block mapped file, so rebuild it as an extent file. We can skip
4152 * symlinks because they're never rewritten.
4154 if (ext2fs_has_feature_bigalloc(fs->super) &&
4155 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
4156 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
4157 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
4158 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
4159 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
4160 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
4165 if (ctx->dirs_to_hash && pb.is_dir &&
4166 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
4167 !(inode->i_flags & EXT2_INDEX_FL) &&
4168 ((inode->i_size / fs->blocksize) >= 3))
4169 e2fsck_rehash_dir_later(ctx, ino);
4173 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
4178 * Helper function called by process block when an illegal block is
4179 * found. It returns a description about why the block is illegal
4181 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
4185 static char problem[80];
4187 super = fs->super->s_first_data_block;
4188 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
4189 if (block < super) {
4190 sprintf(problem, "< FIRSTBLOCK (%u)", super);
4192 } else if (block >= ext2fs_blocks_count(fs->super)) {
4193 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
4196 for (i = 0; i < fs->group_desc_count; i++) {
4197 if (block == super) {
4198 sprintf(problem, "is the superblock in group %d", i);
4201 if (block > super &&
4202 block <= (super + fs->desc_blocks)) {
4203 sprintf(problem, "is in the group descriptors "
4207 if (block == ext2fs_block_bitmap_loc(fs, i)) {
4208 sprintf(problem, "is the block bitmap of group %d", i);
4211 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
4212 sprintf(problem, "is the inode bitmap of group %d", i);
4215 if (block >= ext2fs_inode_table_loc(fs, i) &&
4216 (block < ext2fs_inode_table_loc(fs, i)
4217 + fs->inode_blocks_per_group)) {
4218 sprintf(problem, "is in the inode table of group %d",
4222 super += fs->super->s_blocks_per_group;
4229 * This is a helper function for check_blocks().
4231 static int process_block(ext2_filsys fs,
4233 e2_blkcnt_t blockcnt,
4234 blk64_t ref_block EXT2FS_ATTR((unused)),
4235 int ref_offset EXT2FS_ATTR((unused)),
4238 struct process_block_struct *p;
4239 struct problem_context *pctx;
4240 blk64_t blk = *block_nr;
4242 problem_t problem = 0;
4245 p = (struct process_block_struct *) priv_data;
4250 * For a directory, add logical block zero for processing even if it's
4251 * not mapped or we'll be perennially stuck with broken "." and ".."
4254 if (p->is_dir && blockcnt == 0 && blk == 0) {
4255 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
4256 if (pctx->errcode) {
4258 pctx->num = blockcnt;
4259 goto failed_add_dir_block;
4268 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
4273 * Simplistic fragmentation check. We merely require that the
4274 * file be contiguous. (Which can never be true for really
4275 * big files that are greater than a block group.)
4277 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
4278 if (p->previous_block+1 != blk) {
4279 if (ctx->options & E2F_OPT_FRAGCHECK) {
4287 printf(_("%6lu(%c): expecting %6lu "
4288 "got phys %6lu (blkcnt %lld)\n"),
4289 (unsigned long) pctx->ino, type,
4290 (unsigned long) p->previous_block+1,
4291 (unsigned long) blk,
4292 (long long) blockcnt);
4298 if (p->is_dir && !ext2fs_has_feature_largedir(fs->super) &&
4299 !pctx->inode->i_size_high &&
4300 blockcnt > (1 << (21 - fs->super->s_log_block_size)))
4301 problem = PR_1_TOOBIG_DIR;
4302 if (p->is_dir && p->num_blocks + 1 >= p->max_blocks)
4303 problem = PR_1_TOOBIG_DIR;
4304 if (p->is_reg && p->num_blocks + 1 >= p->max_blocks)
4305 problem = PR_1_TOOBIG_REG;
4306 if (!p->is_dir && !p->is_reg && blockcnt > 0)
4307 problem = PR_1_TOOBIG_SYMLINK;
4309 if (blk < fs->super->s_first_data_block ||
4310 blk >= ext2fs_blocks_count(fs->super))
4311 problem = PR_1_ILLEGAL_BLOCK_NUM;
4314 * If this IND/DIND/TIND block is squatting atop some critical metadata
4315 * (group descriptors, superblock, bitmap, inode table), any write to
4316 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
4317 * fix that and restart fsck.
4320 p->ino != EXT2_RESIZE_INO &&
4321 blk < ctx->fs->super->s_blocks_count &&
4322 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
4324 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
4325 if ((ctx->options & E2F_OPT_NO) == 0)
4326 ctx->flags |= E2F_FLAG_RESTART_LATER;
4330 p->num_illegal_blocks++;
4332 * A bit of subterfuge here -- we're trying to fix a block
4333 * mapping, but the IND/DIND/TIND block could have collided
4334 * with some critical metadata. So, fix the in-core mapping so
4335 * iterate won't go insane, but return 0 instead of
4336 * BLOCK_CHANGED so that it won't write the remapping out to
4337 * our multiply linked block.
4339 * Even if we previously determined that an *IND block
4340 * conflicts with critical metadata, we must still try to
4341 * iterate the *IND block as if it is an *IND block to find and
4342 * mark the blocks it points to. Better to be overly cautious
4343 * with the used_blocks map so that we don't move the *IND
4344 * block to a block that's really in use!
4346 if (p->ino != EXT2_RESIZE_INO &&
4348 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
4353 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
4354 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
4358 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
4360 set_latch_flags(PR_LATCH_BLOCK,
4365 pctx->blkcount = blockcnt;
4366 if (fix_problem(ctx, problem, pctx)) {
4367 blk = *block_nr = 0;
4368 ret_code = BLOCK_CHANGED;
4369 p->inode_modified = 1;
4371 * If the directory block is too big and is beyond the
4372 * end of the FS, don't bother trying to add it for
4373 * processing -- the kernel would never have created a
4374 * directory this large, and we risk an ENOMEM abort.
4375 * In any case, the toobig handler for extent-based
4376 * directories also doesn't feed toobig blocks to
4379 if (problem == PR_1_TOOBIG_DIR)
4386 if (p->ino == EXT2_RESIZE_INO) {
4388 * The resize inode has already be sanity checked
4389 * during pass #0 (the superblock checks). All we
4390 * have to do is mark the double indirect block as
4391 * being in use; all of the other blocks are handled
4392 * by mark_table_blocks()).
4394 if (blockcnt == BLOCK_COUNT_DIND)
4395 mark_block_used(ctx, blk);
4397 } else if (!(ctx->fs->cluster_ratio_bits &&
4398 p->previous_block &&
4399 (EXT2FS_B2C(ctx->fs, blk) ==
4400 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
4401 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
4402 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
4403 mark_block_used(ctx, blk);
4405 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
4406 p->last_block, blk, blockcnt)) {
4407 pctx->blk = blockcnt;
4409 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
4410 mark_block_used(ctx, blk);
4411 mark_block_used(ctx, blk);
4414 p->last_block = blockcnt;
4415 p->previous_block = blk;
4417 if (p->is_dir && (blockcnt >= 0)) {
4418 while (++p->last_db_block < blockcnt) {
4419 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
4422 if (pctx->errcode) {
4424 pctx->num = p->last_db_block;
4425 goto failed_add_dir_block;
4428 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
4430 if (pctx->errcode) {
4432 pctx->num = blockcnt;
4433 failed_add_dir_block:
4434 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
4435 /* Should never get here */
4436 ctx->flags |= E2F_FLAG_ABORT;
4443 static int process_bad_block(ext2_filsys fs,
4445 e2_blkcnt_t blockcnt,
4446 blk64_t ref_block EXT2FS_ATTR((unused)),
4447 int ref_offset EXT2FS_ATTR((unused)),
4450 struct process_block_struct *p;
4451 blk64_t blk = *block_nr;
4452 blk64_t first_block;
4454 struct problem_context *pctx;
4460 p = (struct process_block_struct *) priv_data;
4464 pctx->ino = EXT2_BAD_INO;
4466 pctx->blkcount = blockcnt;
4468 if ((blk < fs->super->s_first_data_block) ||
4469 (blk >= ext2fs_blocks_count(fs->super))) {
4470 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
4472 return BLOCK_CHANGED;
4478 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
4480 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
4482 return BLOCK_CHANGED;
4484 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4487 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
4490 return BLOCK_CHANGED;
4492 if (e2fsck_should_abort(ctx))
4495 mark_block_used(ctx, blk);
4499 printf ("DEBUG: Marking %u as bad.\n", blk);
4501 ctx->fs_badblocks_count++;
4503 * If the block is not used, then mark it as used and return.
4504 * If it is already marked as found, this must mean that
4505 * there's an overlap between the filesystem table blocks
4506 * (bitmaps and inode table) and the bad block list.
4508 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
4509 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4513 * Try to find the where the filesystem block was used...
4515 first_block = fs->super->s_first_data_block;
4517 for (i = 0; i < fs->group_desc_count; i++ ) {
4520 if (!ext2fs_bg_has_super(fs, i))
4522 if (blk == first_block) {
4524 if (fix_problem(ctx,
4525 PR_1_BAD_PRIMARY_SUPERBLOCK,
4528 return BLOCK_CHANGED;
4532 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
4535 if ((blk > first_block) &&
4536 (blk <= first_block + fs->desc_blocks)) {
4538 pctx->blk = *block_nr;
4539 if (fix_problem(ctx,
4540 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
4542 return BLOCK_CHANGED;
4546 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
4550 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
4551 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
4552 ctx->invalid_block_bitmap_flag[i]++;
4553 ctx->invalid_bitmaps++;
4557 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
4558 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
4559 ctx->invalid_inode_bitmap_flag[i]++;
4560 ctx->invalid_bitmaps++;
4564 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
4565 (blk < (ext2fs_inode_table_loc(fs, i) +
4566 fs->inode_blocks_per_group))) {
4568 * If there are bad blocks in the inode table,
4569 * the inode scan code will try to do
4570 * something reasonable automatically.
4574 first_block += fs->super->s_blocks_per_group;
4577 * If we've gotten to this point, then the only
4578 * possibility is that the bad block inode meta data
4579 * is using a bad block.
4581 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
4582 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
4583 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
4585 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
4587 return BLOCK_CHANGED;
4589 if (e2fsck_should_abort(ctx))
4596 /* Warn user that the block wasn't claimed */
4597 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
4602 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
4603 const char *name, int num, blk64_t *new_block)
4605 ext2_filsys fs = ctx->fs;
4607 blk64_t old_block = *new_block;
4610 unsigned flexbg_size;
4613 struct problem_context pctx;
4615 clear_problem_context(&pctx);
4618 pctx.blk = old_block;
4622 * For flex_bg filesystems, first try to allocate the metadata
4623 * within the flex_bg, and if that fails then try finding the
4624 * space anywhere in the filesystem.
4626 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
4628 flexbg_size = 1U << fs->super->s_log_groups_per_flex;
4629 flexbg = group / flexbg_size;
4630 first_block = ext2fs_group_first_block2(fs,
4631 flexbg_size * flexbg);
4632 last_grp = group | (flexbg_size - 1);
4633 if (last_grp >= fs->group_desc_count)
4634 last_grp = fs->group_desc_count - 1;
4635 last_block = ext2fs_group_last_block2(fs, last_grp);
4637 last_block = ext2fs_group_last_block2(fs, group);
4638 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
4639 num, ctx->block_found_map,
4641 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
4642 pctx.errcode = ext2fs_get_free_blocks2(fs,
4643 fs->super->s_first_data_block,
4644 ext2fs_blocks_count(fs->super),
4645 num, ctx->block_found_map, new_block);
4648 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
4649 ext2fs_unmark_valid(fs);
4650 ctx->flags |= E2F_FLAG_ABORT;
4653 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
4655 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
4656 ext2fs_unmark_valid(fs);
4657 ctx->flags |= E2F_FLAG_ABORT;
4660 ext2fs_mark_super_dirty(fs);
4661 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
4662 pctx.blk2 = *new_block;
4663 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
4664 PR_1_RELOC_TO), &pctx);
4666 for (i = 0; i < num; i++) {
4668 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
4670 pctx.errcode = io_channel_read_blk64(fs->io,
4671 old_block + i, 1, buf);
4673 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
4674 pctx.blk = (*new_block) + i;
4675 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
4678 pctx.blk = (*new_block) + i;
4679 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
4684 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
4686 ext2fs_free_mem(&buf);
4690 * This routine gets called at the end of pass 1 if bad blocks are
4691 * detected in the superblock, group descriptors, inode_bitmaps, or
4692 * block bitmaps. At this point, all of the blocks have been mapped
4693 * out, so we can try to allocate new block(s) to replace the bad
4696 static void handle_fs_bad_blocks(e2fsck_t ctx)
4698 ext2_filsys fs = ctx->fs;
4700 blk64_t first_block;
4703 for (i = 0; i < fs->group_desc_count; i++) {
4704 first_block = ext2fs_group_first_block2(fs, i);
4706 if (ctx->invalid_block_bitmap_flag[i]) {
4707 new_blk = ext2fs_block_bitmap_loc(fs, i);
4708 new_table_block(ctx, first_block, i, _("block bitmap"),
4710 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
4712 if (ctx->invalid_inode_bitmap_flag[i]) {
4713 new_blk = ext2fs_inode_bitmap_loc(fs, i);
4714 new_table_block(ctx, first_block, i, _("inode bitmap"),
4716 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
4718 if (ctx->invalid_inode_table_flag[i]) {
4719 new_blk = ext2fs_inode_table_loc(fs, i);
4720 new_table_block(ctx, first_block, i, _("inode table"),
4721 fs->inode_blocks_per_group,
4723 ext2fs_inode_table_loc_set(fs, i, new_blk);
4724 ctx->flags |= E2F_FLAG_RESTART;
4727 ctx->invalid_bitmaps = 0;
4731 * This routine marks all blocks which are used by the superblock,
4732 * group descriptors, inode bitmaps, and block bitmaps.
4734 static void mark_table_blocks(e2fsck_t ctx)
4736 ext2_filsys fs = ctx->fs;
4740 struct problem_context pctx;
4742 clear_problem_context(&pctx);
4744 for (i = 0; i < fs->group_desc_count; i++) {
4747 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
4748 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
4751 * Mark the blocks used for the inode table
4753 if (ext2fs_inode_table_loc(fs, i)) {
4754 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
4755 j < fs->inode_blocks_per_group;
4757 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4760 if (!ctx->invalid_inode_table_flag[i] &&
4762 PR_1_ITABLE_CONFLICT, &pctx)) {
4763 ctx->invalid_inode_table_flag[i]++;
4764 ctx->invalid_bitmaps++;
4767 ext2fs_mark_block_bitmap2(
4768 ctx->block_found_map, b);
4769 ext2fs_mark_block_bitmap2(
4770 ctx->block_metadata_map, b);
4776 * Mark block used for the block bitmap
4778 if (ext2fs_block_bitmap_loc(fs, i)) {
4779 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4780 ext2fs_block_bitmap_loc(fs, i))) {
4781 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
4782 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
4783 ctx->invalid_block_bitmap_flag[i]++;
4784 ctx->invalid_bitmaps++;
4787 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4788 ext2fs_block_bitmap_loc(fs, i));
4789 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4790 ext2fs_block_bitmap_loc(fs, i));
4794 * Mark block used for the inode bitmap
4796 if (ext2fs_inode_bitmap_loc(fs, i)) {
4797 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
4798 ext2fs_inode_bitmap_loc(fs, i))) {
4799 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
4800 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
4801 ctx->invalid_inode_bitmap_flag[i]++;
4802 ctx->invalid_bitmaps++;
4805 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
4806 ext2fs_inode_bitmap_loc(fs, i));
4807 ext2fs_mark_block_bitmap2(ctx->block_found_map,
4808 ext2fs_inode_bitmap_loc(fs, i));
4815 * These subroutines short circuits ext2fs_get_blocks and
4816 * ext2fs_check_directory; we use them since we already have the inode
4817 * structure, so there's no point in letting the ext2fs library read
4820 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
4823 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4826 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4827 return EXT2_ET_CALLBACK_NOTHANDLED;
4829 for (i=0; i < EXT2_N_BLOCKS; i++)
4830 blocks[i] = ctx->stashed_inode->i_block[i];
4834 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
4835 struct ext2_inode *inode)
4837 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4839 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4840 return EXT2_ET_CALLBACK_NOTHANDLED;
4841 *inode = *ctx->stashed_inode;
4845 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
4846 struct ext2_inode *inode)
4848 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4850 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
4851 (inode != ctx->stashed_inode))
4852 *ctx->stashed_inode = *inode;
4853 return EXT2_ET_CALLBACK_NOTHANDLED;
4856 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
4858 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4860 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
4861 return EXT2_ET_CALLBACK_NOTHANDLED;
4863 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
4864 return EXT2_ET_NO_DIRECTORY;
4868 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
4871 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4875 if (ctx->block_found_map) {
4876 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
4880 if (fs->block_map) {
4881 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
4882 ext2fs_mark_bb_dirty(fs);
4885 if (!fs->block_map) {
4886 retval = ext2fs_read_block_bitmap(fs);
4891 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
4900 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
4901 blk64_t len, blk64_t *pblk, blk64_t *plen)
4903 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4906 if (ctx->block_found_map)
4907 return ext2fs_new_range(fs, flags, goal, len,
4908 ctx->block_found_map, pblk, plen);
4910 if (!fs->block_map) {
4911 retval = ext2fs_read_block_bitmap(fs);
4916 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
4920 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
4922 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4924 /* Never free a critical metadata block */
4925 if (ctx->block_found_map &&
4926 ctx->block_metadata_map &&
4928 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
4931 if (ctx->block_found_map) {
4933 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4935 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
4939 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
4940 blk_t num, int inuse)
4942 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4944 /* Never free a critical metadata block */
4945 if (ctx->block_found_map &&
4946 ctx->block_metadata_map &&
4948 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
4951 if (ctx->block_found_map) {
4953 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
4956 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
4961 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
4963 ext2_filsys fs = ctx->fs;
4965 if (use_shortcuts) {
4966 fs->get_blocks = pass1_get_blocks;
4967 fs->check_directory = pass1_check_directory;
4968 fs->read_inode = pass1_read_inode;
4969 fs->write_inode = pass1_write_inode;
4970 ctx->stashed_ino = 0;
4973 fs->check_directory = 0;
4975 fs->write_inode = 0;
4979 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
4981 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
4982 ext2fs_set_block_alloc_stats_callback(ctx->fs,
4983 e2fsck_block_alloc_stats, 0);
4984 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
4985 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
4986 e2fsck_block_alloc_stats_range, NULL);