2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which blocks are in use. (block_found_map)
27 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
28 * - The data blocks of the directory inodes. (dir_map)
30 * Pass 1 is designed to stash away enough information so that the
31 * other passes should not need to read in the inode information
32 * during the normal course of a filesystem check. (Althogh if an
33 * inconsistency is detected, other passes may need to read in an
36 * Note that pass 1B will be invoked if there are any duplicate blocks
40 #define _GNU_SOURCE 1 /* get strnlen() */
49 #include <ext2fs/ext2_ext_attr.h>
53 #ifdef NO_INLINE_FUNCS
56 #define _INLINE_ inline
61 static int process_block(ext2_filsys fs, blk64_t *blocknr,
62 e2_blkcnt_t blockcnt, blk64_t ref_blk,
63 int ref_offset, void *priv_data);
64 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
65 e2_blkcnt_t blockcnt, blk64_t ref_blk,
66 int ref_offset, void *priv_data);
67 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
69 static void mark_table_blocks(e2fsck_t ctx);
70 static void alloc_bb_map(e2fsck_t ctx);
71 static void alloc_imagic_map(e2fsck_t ctx);
72 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
73 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino);
74 static void handle_fs_bad_blocks(e2fsck_t ctx);
75 static void process_inodes(e2fsck_t ctx, char *block_buf);
76 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
77 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
78 dgrp_t group, void * priv_data);
79 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
80 char *block_buf, int adjust_sign);
81 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
83 struct process_block_struct {
85 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
86 fragmented:1, compressed:1, bbcheck:1,
90 e2_blkcnt_t last_block;
91 e2_blkcnt_t last_init_lblock;
92 e2_blkcnt_t last_db_block;
93 int num_illegal_blocks;
94 blk64_t previous_block;
95 struct ext2_inode *inode;
96 struct problem_context *pctx;
97 ext2fs_block_bitmap fs_meta_blocks;
100 struct extent_tree_info eti;
103 struct process_inode_block {
105 struct ext2_inode_large inode;
108 struct scan_callback_struct {
114 * For the inodes to process list.
116 static struct process_inode_block *inodes_to_process;
117 static int process_inode_count;
119 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
120 EXT2_MIN_BLOCK_LOG_SIZE + 1];
123 * Free all memory allocated by pass1 in preparation for restarting
126 static void unwind_pass1(ext2_filsys fs EXT2FS_ATTR((unused)))
128 ext2fs_free_mem(&inodes_to_process);
129 inodes_to_process = 0;
133 * Check to make sure a device inode is real. Returns 1 if the device
134 * checks out, 0 if not.
136 * Note: this routine is now also used to check FIFO's and Sockets,
137 * since they have the same requirement; the i_block fields should be
140 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
141 struct ext2_inode *inode)
146 * If the index flag is set, then this is a bogus
149 if (inode->i_flags & EXT2_INDEX_FL)
153 * We should be able to do the test below all the time, but
154 * because the kernel doesn't forcibly clear the device
155 * inode's additional i_block fields, there are some rare
156 * occasions when a legitimate device inode will have non-zero
157 * additional i_block fields. So for now, we only complain
158 * when the immutable flag is set, which should never happen
159 * for devices. (And that's when the problem is caused, since
160 * you can't set or clear immutable flags for devices.) Once
161 * the kernel has been fixed we can change this...
163 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
164 for (i=4; i < EXT2_N_BLOCKS; i++)
165 if (inode->i_block[i])
172 * Check to make sure a symlink inode is real. Returns 1 if the symlink
173 * checks out, 0 if not.
175 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
176 struct ext2_inode *inode, char *buf)
181 ext2_extent_handle_t handle;
182 struct ext2_extent_info info;
183 struct ext2fs_extent extent;
185 if ((inode->i_size_high || inode->i_size == 0) ||
186 (inode->i_flags & EXT2_INDEX_FL))
189 if (inode->i_flags & EXT4_EXTENTS_FL) {
190 if (inode->i_flags & EXT4_INLINE_DATA_FL)
192 if (inode->i_size > fs->blocksize)
194 if (ext2fs_extent_open2(fs, ino, inode, &handle))
197 if (ext2fs_extent_get_info(handle, &info) ||
198 (info.num_entries != 1) ||
199 (info.max_depth != 0))
201 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent) ||
202 (extent.e_lblk != 0) ||
203 (extent.e_len != 1) ||
204 (extent.e_pblk < fs->super->s_first_data_block) ||
205 (extent.e_pblk >= ext2fs_blocks_count(fs->super)))
209 ext2fs_extent_free(handle);
213 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
216 if (ext2fs_inline_data_size(fs, ino, &inline_size))
218 if (inode->i_size != inline_size)
224 blocks = ext2fs_inode_data_blocks2(fs, inode);
226 if (inode->i_flags & EXT4_INLINE_DATA_FL)
228 if ((inode->i_size >= fs->blocksize) ||
229 (blocks != fs->blocksize >> 9) ||
230 (inode->i_block[0] < fs->super->s_first_data_block) ||
231 (inode->i_block[0] >= ext2fs_blocks_count(fs->super)))
234 for (i = 1; i < EXT2_N_BLOCKS; i++)
235 if (inode->i_block[i])
238 if (io_channel_read_blk64(fs->io, inode->i_block[0], 1, buf))
241 if (inode->i_flags & EXT4_ENCRYPT_FL) {
242 len = ext2fs_le32_to_cpu(*((__u32 *)buf)) + 4;
244 len = strnlen(buf, fs->blocksize);
246 if (len == fs->blocksize)
248 } else if (inode->i_flags & EXT4_INLINE_DATA_FL) {
249 char *inline_buf = NULL;
250 size_t inline_sz = 0;
252 if (ext2fs_inline_data_size(fs, ino, &inline_sz))
254 if (inode->i_size != inline_sz)
256 if (ext2fs_get_mem(inline_sz + 1, &inline_buf))
259 if (ext2fs_inline_data_get(fs, ino, inode, inline_buf, NULL))
261 inline_buf[inline_sz] = 0;
262 len = strnlen(inline_buf, inline_sz);
263 if (len != inline_sz)
267 ext2fs_free_mem(&inline_buf);
270 if (inode->i_size >= sizeof(inode->i_block))
273 len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
274 if (len == sizeof(inode->i_block))
277 if (len != inode->i_size)
278 if ((inode->i_flags & EXT4_ENCRYPT_FL) == 0)
284 * If the extents or inlinedata flags are set on the inode, offer to clear 'em.
286 #define BAD_SPECIAL_FLAGS (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)
287 static void check_extents_inlinedata(e2fsck_t ctx,
288 struct problem_context *pctx)
290 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
293 if (!fix_problem(ctx, PR_1_SPECIAL_EXTENTS_IDATA, pctx))
296 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
297 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
299 #undef BAD_SPECIAL_FLAGS
302 * If the immutable (or append-only) flag is set on the inode, offer
305 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
306 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
308 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
311 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
314 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
315 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
319 * If device, fifo or socket, check size is zero -- if not offer to
322 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
324 struct ext2_inode *inode = pctx->inode;
326 if (EXT2_I_SIZE(inode) == 0)
329 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
332 ext2fs_inode_size_set(ctx->fs, inode, 0);
333 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
336 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
338 struct ext2_super_block *sb = ctx->fs->super;
339 struct ext2_inode_large *inode;
340 struct ext2_ext_attr_entry *entry;
341 char *start, *header;
342 unsigned int storage_size, remain;
343 problem_t problem = 0;
346 inode = (struct ext2_inode_large *) pctx->inode;
347 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
348 inode->i_extra_isize;
349 header = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
350 inode->i_extra_isize;
351 start = header + sizeof(__u32);
352 entry = (struct ext2_ext_attr_entry *) start;
354 /* scan all entry's headers first */
356 /* take finish entry 0UL into account */
357 remain = storage_size - sizeof(__u32);
359 region = region_create(0, storage_size);
361 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
363 ctx->flags |= E2F_FLAG_ABORT;
366 if (region_allocate(region, 0, sizeof(__u32))) {
367 problem = PR_1_INODE_EA_ALLOC_COLLISION;
371 while (remain >= sizeof(struct ext2_ext_attr_entry) &&
372 !EXT2_EXT_IS_LAST_ENTRY(entry)) {
375 if (region_allocate(region, (char *)entry - (char *)header,
376 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
377 problem = PR_1_INODE_EA_ALLOC_COLLISION;
381 /* header eats this space */
382 remain -= sizeof(struct ext2_ext_attr_entry);
384 /* is attribute name valid? */
385 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
386 pctx->num = entry->e_name_len;
387 problem = PR_1_ATTR_NAME_LEN;
391 /* attribute len eats this space */
392 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
394 /* check value size */
395 if (entry->e_value_size > remain) {
396 pctx->num = entry->e_value_size;
397 problem = PR_1_ATTR_VALUE_SIZE;
401 /* e_value_block must be 0 in inode's ea */
402 if (entry->e_value_block != 0) {
403 pctx->num = entry->e_value_block;
404 problem = PR_1_ATTR_VALUE_BLOCK;
408 if (entry->e_value_size &&
409 region_allocate(region, sizeof(__u32) + entry->e_value_offs,
410 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
411 problem = PR_1_INODE_EA_ALLOC_COLLISION;
415 hash = ext2fs_ext_attr_hash_entry(entry,
416 start + entry->e_value_offs);
418 /* e_hash may be 0 in older inode's ea */
419 if (entry->e_hash != 0 && entry->e_hash != hash) {
420 pctx->num = entry->e_hash;
421 problem = PR_1_ATTR_HASH;
425 remain -= entry->e_value_size;
427 entry = EXT2_EXT_ATTR_NEXT(entry);
430 if (region_allocate(region, (char *)entry - (char *)header,
432 problem = PR_1_INODE_EA_ALLOC_COLLISION;
439 * it seems like a corruption. it's very unlikely we could repair
440 * EA(s) in automatic fashion -bzzz
442 if (problem == 0 || !fix_problem(ctx, problem, pctx))
445 /* simply remove all possible EA(s) */
446 *((__u32 *)header) = 0UL;
447 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
448 EXT2_INODE_SIZE(sb), "pass1");
451 static int check_inode_extra_negative_epoch(__u32 xtime, __u32 extra) {
452 return (xtime & (1 << 31)) != 0 &&
453 (extra & EXT4_EPOCH_MASK) == EXT4_EPOCH_MASK;
456 #define CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, xtime) \
457 check_inode_extra_negative_epoch(inode->i_##xtime, \
458 inode->i_##xtime##_extra)
460 /* When today's date is earlier than 2242, we assume that atimes,
461 * ctimes, crtimes, and mtimes with years in the range 2310..2378 are
462 * actually pre-1970 dates mis-encoded.
464 #define EXT4_EXTRA_NEGATIVE_DATE_CUTOFF 2 * (1LL << 32)
466 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx)
468 struct ext2_super_block *sb = ctx->fs->super;
469 struct ext2_inode_large *inode;
473 inode = (struct ext2_inode_large *) pctx->inode;
474 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
475 /* this isn't large inode. so, nothing to check */
480 printf("inode #%u, i_extra_size %d\n", pctx->ino,
481 inode->i_extra_isize);
483 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
484 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
485 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
487 * For now we will allow i_extra_isize to be 0, but really
488 * implementations should never allow i_extra_isize to be 0
490 if (inode->i_extra_isize &&
491 (inode->i_extra_isize < min || inode->i_extra_isize > max)) {
492 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
494 inode->i_extra_isize = min;
495 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
496 EXT2_INODE_SIZE(sb), "pass1");
500 /* check if there is no place for an EA header */
501 if (inode->i_extra_isize >= max - sizeof(__u32))
504 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
505 inode->i_extra_isize);
506 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
507 /* it seems inode has an extended attribute(s) in body */
508 check_ea_in_inode(ctx, pctx);
512 * If the inode's extended atime (ctime, crtime, mtime) is stored in
513 * the old, invalid format, repair it.
515 if (((sizeof(time_t) <= 4) ||
516 ((sizeof(time_t) > 4) &&
517 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF)) &&
518 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
519 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
520 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
521 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
523 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
526 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
527 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
528 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
529 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
530 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
531 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
532 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
533 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
534 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
535 EXT2_INODE_SIZE(sb), "pass1");
541 * Check to see if the inode might really be a directory, despite i_mode
543 * This is a lot of complexity for something for which I'm not really
544 * convinced happens frequently in the wild. If for any reason this
545 * causes any problems, take this code out.
546 * [tytso:20070331.0827EDT]
548 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
551 struct ext2_inode *inode = pctx->inode;
552 struct ext2_dir_entry *dirent;
555 unsigned int i, rec_len, not_device = 0;
560 * If the mode looks OK, we believe it. If the first block in
561 * the i_block array is 0, this cannot be a directory. If the
562 * inode is extent-mapped, it is still the case that the latter
563 * cannot be 0 - the magic number in the extent header would make
566 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
567 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
571 * Check the block numbers in the i_block array for validity:
572 * zero blocks are skipped (but the first one cannot be zero -
573 * see above), other blocks are checked against the first and
574 * max data blocks (from the the superblock) and against the
575 * block bitmap. Any invalid block found means this cannot be
578 * If there are non-zero blocks past the fourth entry, then
579 * this cannot be a device file: we remember that for the next
582 * For extent mapped files, we don't do any sanity checking:
583 * just try to get the phys block of logical block 0 and run
586 * For inline data files, we just try to get the size of inline
587 * data. If it's true, we will treat it as a directory.
590 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
591 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
592 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
595 unsigned int rec_len2;
596 struct ext2_dir_entry de;
598 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
601 * If the size isn't a multiple of 4, it's probably not a
607 * If the first 10 bytes don't look like a directory entry,
608 * it's probably not a directory.
610 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
611 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
612 EXT2_DIR_REC_LEN(0));
613 dotdot = ext2fs_le32_to_cpu(dotdot);
614 de.inode = ext2fs_le32_to_cpu(de.inode);
615 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
616 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
617 if (dotdot >= ctx->fs->super->s_inodes_count ||
618 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
619 dotdot != EXT2_ROOT_INO) ||
620 de.inode >= ctx->fs->super->s_inodes_count ||
621 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
623 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
624 EXT4_INLINE_DATA_DOTDOT_SIZE)
626 /* device files never have a "system.data" entry */
628 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
630 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
633 /* device files are never extent mapped */
636 for (i=0; i < EXT2_N_BLOCKS; i++) {
637 blk = inode->i_block[i];
643 if (blk < ctx->fs->super->s_first_data_block ||
644 blk >= ext2fs_blocks_count(ctx->fs->super) ||
645 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
647 return; /* Invalid block, can't be dir */
649 blk = inode->i_block[0];
653 * If the mode says this is a device file and the i_links_count field
654 * is sane and we have not ruled it out as a device file previously,
655 * we declare it a device file, not a directory.
657 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
658 (inode->i_links_count == 1) && !not_device)
661 /* read the first block */
662 ehandler_operation(_("reading directory block"));
663 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
664 ehandler_operation(0);
668 dirent = (struct ext2_dir_entry *) buf;
669 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
672 if ((ext2fs_dirent_name_len(dirent) != 1) ||
673 (dirent->name[0] != '.') ||
674 (dirent->inode != pctx->ino) ||
677 (rec_len >= ctx->fs->blocksize - 12))
680 dirent = (struct ext2_dir_entry *) (buf + rec_len);
681 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
684 if ((ext2fs_dirent_name_len(dirent) != 2) ||
685 (dirent->name[0] != '.') ||
686 (dirent->name[1] != '.') ||
692 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
693 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
694 e2fsck_write_inode_full(ctx, pctx->ino, inode,
695 EXT2_INODE_SIZE(ctx->fs->super),
696 "check_is_really_dir");
700 void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
703 unsigned int threshold;
711 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
713 profile_get_uint(ctx->profile, "scratch_files",
714 "numdirs_threshold", 0, 0, &threshold);
715 profile_get_boolean(ctx->profile, "scratch_files",
716 "icount", 0, 1, &enable);
718 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
720 num_dirs = 1024; /* Guess */
722 if (!enable || !tdb_dir || access(tdb_dir, W_OK) ||
723 (threshold && num_dirs <= threshold))
726 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir, flags, ret);
731 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
733 struct problem_context *pctx)
736 struct ext2_inode_large inode;
739 * Reread inode. If we don't see checksum error, then this inode
740 * has been fixed elsewhere.
742 ctx->stashed_ino = 0;
743 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
745 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
751 * Checksum still doesn't match. That implies that the inode passes
752 * all the sanity checks, so maybe the checksum is simply corrupt.
753 * See if the user will go for fixing that.
755 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
758 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
763 static void reserve_block_for_root_repair(e2fsck_t ctx)
767 ext2_filsys fs = ctx->fs;
769 ctx->root_repair_block = 0;
770 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
773 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
776 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
777 ctx->root_repair_block = blk;
780 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
784 ext2_filsys fs = ctx->fs;
785 static const char name[] = "lost+found";
788 ctx->lnf_repair_block = 0;
789 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
792 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
795 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
796 ctx->lnf_repair_block = blk;
799 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
803 struct ext2_xattr_handle *handle;
806 retval = ext2fs_xattrs_open(fs, ino, &handle);
810 retval = ext2fs_xattrs_read(handle);
814 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
819 (void) ext2fs_xattrs_close(&handle);
823 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
824 struct problem_context *pctx,
831 * If the inode failed the checksum and the user didn't
832 * clear the inode, test the checksum again -- if it still
833 * fails, ask the user if the checksum should be corrected.
835 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
837 ctx->flags |= E2F_FLAG_ABORT;
839 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
841 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
842 if ((ctx)->flags & E2F_FLAG_ABORT) \
846 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
851 for (i = 0; i < EXT2_N_BLOCKS; i++) {
852 x = inode->i_block[i];
853 #ifdef WORDS_BIGENDIAN
854 x = ext2fs_swab32(x);
856 if (x >= ext2fs_blocks_count(fs->super))
864 * Figure out what to do with an inode that has both extents and inline data
865 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
867 static int fix_inline_data_extents_file(e2fsck_t ctx,
869 struct ext2_inode *inode,
871 struct problem_context *pctx)
873 size_t max_inline_ea_size;
874 ext2_filsys fs = ctx->fs;
877 /* Both feature flags not set? Just run the regular checks */
878 if (!ext2fs_has_feature_extents(fs->super) &&
879 !ext2fs_has_feature_inline_data(fs->super))
882 /* Clear both flags if it's a special file */
883 if (LINUX_S_ISCHR(inode->i_mode) ||
884 LINUX_S_ISBLK(inode->i_mode) ||
885 LINUX_S_ISFIFO(inode->i_mode) ||
886 LINUX_S_ISSOCK(inode->i_mode)) {
887 check_extents_inlinedata(ctx, pctx);
891 /* If it looks like an extent tree, try to clear inlinedata */
892 if (ext2fs_extent_header_verify(inode->i_block,
893 sizeof(inode->i_block)) == 0 &&
894 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
895 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
900 /* If it looks short enough to be inline data, try to clear extents */
901 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
902 max_inline_ea_size = inode_size -
903 (EXT2_GOOD_OLD_INODE_SIZE +
904 ((struct ext2_inode_large *)inode)->i_extra_isize);
906 max_inline_ea_size = 0;
907 if (EXT2_I_SIZE(inode) <
908 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
909 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
910 inode->i_flags &= ~EXT4_EXTENTS_FL;
916 * Too big for inline data, but no evidence of extent tree -
917 * maybe it's a block map file? If the mappings all look valid?
919 if (could_be_block_map(fs, inode) &&
920 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
921 #ifdef WORDS_BIGENDIAN
924 for (i = 0; i < EXT2_N_BLOCKS; i++)
925 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
928 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
933 /* Oh well, just clear the busted inode. */
934 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
935 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
941 e2fsck_write_inode(ctx, ino, inode, "pass1");
946 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
948 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
949 dgrp_t start = *group, grp;
950 blk64_t blocks_to_read = 0;
951 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
953 if (ctx->readahead_kb == 0)
956 /* Keep iterating groups until we have enough to readahead */
957 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
958 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
959 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
961 inodes_in_group = ctx->fs->super->s_inodes_per_group -
962 ext2fs_bg_itable_unused(ctx->fs, grp);
963 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
965 if (blocks_to_read * ctx->fs->blocksize >
966 ctx->readahead_kb * 1024)
970 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
973 ctx->readahead_kb /= 2;
979 /* Error; disable itable readahead */
980 *group = ctx->fs->group_desc_count;
981 *next_ino = ctx->fs->super->s_inodes_count;
984 * Don't do more readahead until we've reached the first inode
985 * of the last inode scan buffer block for the last group.
988 inodes_per_buffer = (ctx->inode_buffer_blocks ?
989 ctx->inode_buffer_blocks :
990 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
992 EXT2_INODE_SIZE(ctx->fs->super);
994 *next_ino = inodes_in_group -
995 (inodes_in_group % inodes_per_buffer) + 1 +
996 (grp * ctx->fs->super->s_inodes_per_group);
1001 * Check if the passed ino is one of the used superblock quota inodes.
1003 * Before the quota inodes were journaled, older superblock quota inodes
1004 * were just regular files in the filesystem and not reserved inodes. This
1005 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1006 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1008 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1010 enum quota_type qtype;
1012 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1013 if (*quota_sb_inump(sb, qtype) == ino)
1020 * Check if the passed ino is one of the reserved quota inodes.
1021 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1022 * inodes. These inodes may or may not be in use by the quota feature.
1024 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1026 enum quota_type qtype;
1028 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1029 if (quota_type2inum(qtype, fs->super) == ino)
1035 void e2fsck_pass1(e2fsck_t ctx)
1039 ext2_filsys fs = ctx->fs;
1041 struct ext2_inode *inode = NULL;
1042 ext2_inode_scan scan = NULL;
1043 char *block_buf = NULL;
1044 #ifdef RESOURCE_TRACK
1045 struct resource_track rtrack;
1047 unsigned char frag, fsize;
1048 struct problem_context pctx;
1049 struct scan_callback_struct scan_struct;
1050 struct ext2_super_block *sb = ctx->fs->super;
1052 unsigned int save_type;
1053 int imagic_fs, extent_fs, inlinedata_fs;
1054 int low_dtime_check = 1;
1055 int inode_size = EXT2_INODE_SIZE(fs->super);
1056 int failed_csum = 0;
1057 ext2_ino_t ino_threshold = 0;
1058 dgrp_t ra_group = 0;
1060 init_resource_track(&rtrack, ctx->fs->io);
1061 clear_problem_context(&pctx);
1063 /* If we can do readahead, figure out how many groups to pull in. */
1064 if (!e2fsck_can_readahead(ctx->fs))
1065 ctx->readahead_kb = 0;
1066 else if (ctx->readahead_kb == ~0ULL)
1067 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1068 pass1_readahead(ctx, &ra_group, &ino_threshold);
1070 if (!(ctx->options & E2F_OPT_PREEN))
1071 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1073 if (ext2fs_has_feature_dir_index(fs->super) &&
1074 !(ctx->options & E2F_OPT_NO)) {
1075 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1076 ctx->dirs_to_hash = 0;
1080 mtrace_print("Pass 1");
1083 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1085 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1086 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1087 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1088 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1089 max_sizes = (max_sizes * (1UL << i));
1090 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1094 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1095 extent_fs = ext2fs_has_feature_extents(sb);
1096 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1099 * Allocate bitmaps structures
1101 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1102 EXT2FS_BMAP64_RBTREE,
1104 &ctx->inode_used_map);
1107 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1108 ctx->flags |= E2F_FLAG_ABORT;
1111 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1112 _("directory inode map"),
1113 EXT2FS_BMAP64_AUTODIR,
1114 "inode_dir_map", &ctx->inode_dir_map);
1117 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1118 ctx->flags |= E2F_FLAG_ABORT;
1121 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1122 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1123 "inode_reg_map", &ctx->inode_reg_map);
1126 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1127 ctx->flags |= E2F_FLAG_ABORT;
1130 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1131 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1132 "block_found_map", &ctx->block_found_map);
1135 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1136 ctx->flags |= E2F_FLAG_ABORT;
1139 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1140 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1141 "block_metadata_map", &ctx->block_metadata_map);
1144 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1145 ctx->flags |= E2F_FLAG_ABORT;
1148 e2fsck_setup_tdb_icount(ctx, 0, &ctx->inode_link_info);
1149 if (!ctx->inode_link_info) {
1150 e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE,
1151 "inode_link_info", &save_type);
1152 pctx.errcode = ext2fs_create_icount2(fs, 0, 0, 0,
1153 &ctx->inode_link_info);
1154 fs->default_bitmap_type = save_type;
1158 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1159 ctx->flags |= E2F_FLAG_ABORT;
1162 inode = (struct ext2_inode *)
1163 e2fsck_allocate_memory(ctx, inode_size, "scratch inode");
1165 inodes_to_process = (struct process_inode_block *)
1166 e2fsck_allocate_memory(ctx,
1167 (ctx->process_inode_size *
1168 sizeof(struct process_inode_block)),
1169 "array of inodes to process");
1170 process_inode_count = 0;
1172 pctx.errcode = ext2fs_init_dblist(fs, 0);
1174 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1175 ctx->flags |= E2F_FLAG_ABORT;
1180 * If the last orphan field is set, clear it, since the pass1
1181 * processing will automatically find and clear the orphans.
1182 * In the future, we may want to try using the last_orphan
1183 * linked list ourselves, but for now, we clear it so that the
1184 * ext3 mount code won't get confused.
1186 if (!(ctx->options & E2F_OPT_READONLY)) {
1187 if (fs->super->s_last_orphan) {
1188 fs->super->s_last_orphan = 0;
1189 ext2fs_mark_super_dirty(fs);
1193 mark_table_blocks(ctx);
1194 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1195 &ctx->block_found_map);
1197 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1198 ctx->flags |= E2F_FLAG_ABORT;
1201 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1202 "block interate buffer");
1203 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1204 e2fsck_use_inode_shortcuts(ctx, 1);
1205 e2fsck_intercept_block_allocations(ctx);
1206 old_op = ehandler_operation(_("opening inode scan"));
1207 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1209 ehandler_operation(old_op);
1211 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1212 ctx->flags |= E2F_FLAG_ABORT;
1215 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1216 EXT2_SF_WARN_GARBAGE_INODES, 0);
1217 ctx->stashed_inode = inode;
1218 scan_struct.ctx = ctx;
1219 scan_struct.block_buf = block_buf;
1220 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1221 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1222 ctx->fs->group_desc_count)))
1224 if ((fs->super->s_wtime < fs->super->s_inodes_count) ||
1225 (fs->super->s_mtime < fs->super->s_inodes_count) ||
1226 (fs->super->s_mkfs_time &&
1227 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1228 low_dtime_check = 0;
1230 if (ext2fs_has_feature_mmp(fs->super) &&
1231 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1232 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1233 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1234 fs->super->s_mmp_block);
1236 /* Set up ctx->lost_and_found if possible */
1237 (void) e2fsck_get_lost_and_found(ctx, 0);
1240 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1241 if (e2fsck_mmp_update(fs))
1242 fatal_error(ctx, 0);
1244 old_op = ehandler_operation(_("getting next inode from scan"));
1245 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1247 if (ino > ino_threshold)
1248 pass1_readahead(ctx, &ra_group, &ino_threshold);
1249 ehandler_operation(old_op);
1250 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1252 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1254 * If badblocks says badblocks is bad, offer to clear
1255 * the list, update the in-core bb list, and restart
1258 if (ino == EXT2_BAD_INO &&
1259 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1263 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1264 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1265 ctx->fs->badblocks = NULL;
1266 err = ext2fs_read_bb_inode(ctx->fs,
1267 &ctx->fs->badblocks);
1269 fix_problem(ctx, PR_1_ISCAN_ERROR,
1271 ctx->flags |= E2F_FLAG_ABORT;
1274 err = ext2fs_inode_scan_goto_blockgroup(scan,
1277 fix_problem(ctx, PR_1_ISCAN_ERROR,
1279 ctx->flags |= E2F_FLAG_ABORT;
1284 if (!ctx->inode_bb_map)
1286 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1287 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1291 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1292 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1293 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1294 ctx->flags |= E2F_FLAG_ABORT;
1301 ctx->stashed_ino = ino;
1303 /* Clear trashed inode? */
1304 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1305 inode->i_links_count > 0 &&
1306 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1308 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1310 failed_csum = pctx.errcode != 0;
1312 if (inode->i_links_count) {
1313 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1314 ino, inode->i_links_count);
1316 pctx.num = inode->i_links_count;
1317 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1318 ctx->flags |= E2F_FLAG_ABORT;
1323 /* Conflicting inlinedata/extents inode flags? */
1324 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1325 (inode->i_flags & EXT4_EXTENTS_FL)) {
1326 int res = fix_inline_data_extents_file(ctx, ino, inode,
1330 /* skip FINISH_INODE_LOOP */
1335 /* Test for incorrect inline_data flags settings. */
1336 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1337 (ino >= EXT2_FIRST_INODE(fs->super))) {
1340 pctx.errcode = ext2fs_inline_data_size(fs, ino, &size);
1341 if (!pctx.errcode && size &&
1342 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1343 ext2fs_set_feature_inline_data(sb);
1344 ext2fs_mark_super_dirty(fs);
1346 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1347 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1348 /* skip FINISH_INODE_LOOP */
1353 /* Test for inline data flag but no attr */
1354 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1355 EXT2_I_SIZE(inode) > EXT4_MIN_INLINE_DATA_SIZE &&
1356 (ino >= EXT2_FIRST_INODE(fs->super))) {
1363 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1364 err = get_inline_data_ea_size(fs, ino, &size);
1365 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1366 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1370 /* Everything is awesome... */
1372 case EXT2_ET_BAD_EA_BLOCK_NUM:
1373 case EXT2_ET_BAD_EA_HASH:
1374 case EXT2_ET_BAD_EA_HEADER:
1375 case EXT2_ET_EA_BAD_NAME_LEN:
1376 case EXT2_ET_EA_BAD_VALUE_SIZE:
1377 case EXT2_ET_EA_KEY_NOT_FOUND:
1378 case EXT2_ET_EA_NO_SPACE:
1379 case EXT2_ET_MISSING_EA_FEATURE:
1380 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1381 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1382 case EXT2_ET_INLINE_DATA_NO_SPACE:
1383 case EXT2_ET_NO_INLINE_DATA:
1384 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1385 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1386 /* broken EA or no system.data EA; truncate */
1387 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1389 err = ext2fs_inode_size_set(fs, inode,
1390 sizeof(inode->i_block));
1393 ctx->flags |= E2F_FLAG_ABORT;
1396 if (LINUX_S_ISLNK(inode->i_mode))
1397 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1398 e2fsck_write_inode(ctx, ino, inode,
1404 /* Some other kind of non-xattr error? */
1406 ctx->flags |= E2F_FLAG_ABORT;
1412 * Test for incorrect extent flag settings.
1414 * On big-endian machines we must be careful:
1415 * When the inode is read, the i_block array is not swapped
1416 * if the extent flag is set. Therefore if we are testing
1417 * for or fixing a wrongly-set flag, we must potentially
1418 * (un)swap before testing, or after fixing.
1422 * In this case the extents flag was set when read, so
1423 * extent_header_verify is ok. If the inode is cleared,
1424 * no need to swap... so no extra swapping here.
1426 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1427 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1428 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1429 if ((ext2fs_extent_header_verify(inode->i_block,
1430 sizeof(inode->i_block)) == 0) &&
1431 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1432 ext2fs_set_feature_extents(sb);
1433 ext2fs_mark_super_dirty(fs);
1435 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1437 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1438 if (ino == EXT2_BAD_INO)
1439 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1441 /* skip FINISH_INODE_LOOP */
1447 * For big-endian machines:
1448 * If the inode didn't have the extents flag set when it
1449 * was read, then the i_blocks array was swapped. To test
1450 * as an extents header, we must swap it back first.
1451 * IF we then set the extents flag, the entire i_block
1452 * array must be un/re-swapped to make it proper extents data.
1454 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1455 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1456 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1457 (LINUX_S_ISREG(inode->i_mode) ||
1458 LINUX_S_ISDIR(inode->i_mode))) {
1460 #ifdef WORDS_BIGENDIAN
1461 __u32 tmp_block[EXT2_N_BLOCKS];
1463 for (i = 0; i < EXT2_N_BLOCKS; i++)
1464 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1467 ehp = inode->i_block;
1469 if ((ext2fs_extent_header_verify(ehp,
1470 sizeof(inode->i_block)) == 0) &&
1471 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1472 inode->i_flags |= EXT4_EXTENTS_FL;
1473 #ifdef WORDS_BIGENDIAN
1474 memcpy(inode->i_block, tmp_block,
1475 sizeof(inode->i_block));
1477 e2fsck_write_inode(ctx, ino, inode, "pass1");
1482 if (ino == EXT2_BAD_INO) {
1483 struct process_block_struct pb;
1485 if ((failed_csum || inode->i_mode || inode->i_uid ||
1486 inode->i_gid || inode->i_links_count ||
1487 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1488 inode->i_file_acl) &&
1489 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1490 memset(inode, 0, sizeof(struct ext2_inode));
1491 e2fsck_write_inode(ctx, ino, inode,
1496 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1497 &pb.fs_meta_blocks);
1500 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1501 ctx->flags |= E2F_FLAG_ABORT;
1504 pb.ino = EXT2_BAD_INO;
1505 pb.num_blocks = pb.last_block = 0;
1506 pb.last_db_block = -1;
1507 pb.num_illegal_blocks = 0;
1508 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1509 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1513 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1514 block_buf, process_bad_block, &pb);
1515 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1517 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1518 ctx->flags |= E2F_FLAG_ABORT;
1522 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1523 ctx->flags |= E2F_FLAG_ABORT;
1526 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1527 clear_problem_context(&pctx);
1528 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1530 } else if (ino == EXT2_ROOT_INO) {
1532 * Make sure the root inode is a directory; if
1533 * not, offer to clear it. It will be
1534 * regnerated in pass #3.
1536 if (!LINUX_S_ISDIR(inode->i_mode)) {
1537 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1541 * If dtime is set, offer to clear it. mke2fs
1542 * version 0.2b created filesystems with the
1543 * dtime field set for the root and lost+found
1544 * directories. We won't worry about
1545 * /lost+found, since that can be regenerated
1546 * easily. But we will fix the root directory
1547 * as a special case.
1549 if (inode->i_dtime && inode->i_links_count) {
1550 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1552 e2fsck_write_inode(ctx, ino, inode,
1557 } else if (ino == EXT2_JOURNAL_INO) {
1558 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1559 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1560 if (!LINUX_S_ISREG(inode->i_mode) &&
1561 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1563 inode->i_mode = LINUX_S_IFREG;
1564 e2fsck_write_inode(ctx, ino, inode,
1568 check_blocks(ctx, &pctx, block_buf);
1569 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1572 if ((inode->i_links_count ||
1573 inode->i_blocks || inode->i_block[0]) &&
1574 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1576 memset(inode, 0, inode_size);
1577 ext2fs_icount_store(ctx->inode_link_info,
1579 e2fsck_write_inode_full(ctx, ino, inode,
1580 inode_size, "pass1");
1583 } else if (quota_inum_is_reserved(fs, ino)) {
1584 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1585 if (ext2fs_has_feature_quota(fs->super) &&
1586 quota_inum_is_super(fs->super, ino)) {
1587 if (!LINUX_S_ISREG(inode->i_mode) &&
1588 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1590 inode->i_mode = LINUX_S_IFREG;
1591 e2fsck_write_inode(ctx, ino, inode,
1595 check_blocks(ctx, &pctx, block_buf);
1596 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1599 if ((inode->i_links_count ||
1600 inode->i_blocks || inode->i_block[0]) &&
1601 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1603 memset(inode, 0, inode_size);
1604 ext2fs_icount_store(ctx->inode_link_info,
1606 e2fsck_write_inode_full(ctx, ino, inode,
1607 inode_size, "pass1");
1610 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1611 problem_t problem = 0;
1613 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1614 if (ino == EXT2_BOOT_LOADER_INO) {
1615 if (LINUX_S_ISDIR(inode->i_mode))
1616 problem = PR_1_RESERVED_BAD_MODE;
1617 } else if (ino == EXT2_RESIZE_INO) {
1618 if (inode->i_mode &&
1619 !LINUX_S_ISREG(inode->i_mode))
1620 problem = PR_1_RESERVED_BAD_MODE;
1622 if (inode->i_mode != 0)
1623 problem = PR_1_RESERVED_BAD_MODE;
1626 if (fix_problem(ctx, problem, &pctx)) {
1628 e2fsck_write_inode(ctx, ino, inode,
1633 check_blocks(ctx, &pctx, block_buf);
1634 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1639 * Check for inodes who might have been part of the
1640 * orphaned list linked list. They should have gotten
1641 * dealt with by now, unless the list had somehow been
1644 * FIXME: In the future, inodes which are still in use
1645 * (and which are therefore) pending truncation should
1646 * be handled specially. Right now we just clear the
1647 * dtime field, and the normal e2fsck handling of
1648 * inodes where i_size and the inode blocks are
1649 * inconsistent is to fix i_size, instead of releasing
1650 * the extra blocks. This won't catch the inodes that
1651 * was at the end of the orphan list, but it's better
1652 * than nothing. The right answer is that there
1653 * shouldn't be any bugs in the orphan list handling. :-)
1655 if (inode->i_dtime && low_dtime_check &&
1656 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1657 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1658 inode->i_dtime = inode->i_links_count ?
1660 e2fsck_write_inode(ctx, ino, inode,
1667 * This code assumes that deleted inodes have
1668 * i_links_count set to 0.
1670 if (!inode->i_links_count) {
1671 if (!inode->i_dtime && inode->i_mode) {
1672 if (fix_problem(ctx,
1673 PR_1_ZERO_DTIME, &pctx)) {
1674 inode->i_dtime = ctx->now;
1675 e2fsck_write_inode(ctx, ino, inode,
1680 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1684 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1685 * deleted files. Oops.
1687 * Since all new ext2 implementations get this right,
1688 * we now assume that the case of non-zero
1689 * i_links_count and non-zero dtime means that we
1690 * should keep the file, not delete it.
1693 if (inode->i_dtime) {
1694 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1696 e2fsck_write_inode(ctx, ino, inode, "pass1");
1701 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1702 switch (fs->super->s_creator_os) {
1704 frag = inode->osd2.hurd2.h_i_frag;
1705 fsize = inode->osd2.hurd2.h_i_fsize;
1711 if (inode->i_faddr || frag || fsize ||
1712 (LINUX_S_ISDIR(inode->i_mode) && inode->i_dir_acl))
1713 mark_inode_bad(ctx, ino);
1714 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
1715 !ext2fs_has_feature_64bit(fs->super) &&
1716 inode->osd2.linux2.l_i_file_acl_high != 0)
1717 mark_inode_bad(ctx, ino);
1718 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
1719 !ext2fs_has_feature_huge_file(fs->super) &&
1720 (inode->osd2.linux2.l_i_blocks_hi != 0))
1721 mark_inode_bad(ctx, ino);
1722 if (inode->i_flags & EXT2_IMAGIC_FL) {
1724 if (!ctx->inode_imagic_map)
1725 alloc_imagic_map(ctx);
1726 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1729 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1730 inode->i_flags &= ~EXT2_IMAGIC_FL;
1731 e2fsck_write_inode(ctx, ino,
1738 check_inode_extra_space(ctx, &pctx);
1739 check_is_really_dir(ctx, &pctx, block_buf);
1742 * ext2fs_inode_has_valid_blocks2 does not actually look
1743 * at i_block[] values, so not endian-sensitive here.
1745 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1746 LINUX_S_ISLNK(inode->i_mode) &&
1747 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1748 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1749 inode->i_flags &= ~EXT4_EXTENTS_FL;
1750 e2fsck_write_inode(ctx, ino, inode, "pass1");
1754 if (LINUX_S_ISDIR(inode->i_mode)) {
1755 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1756 e2fsck_add_dir_info(ctx, ino, 0);
1757 ctx->fs_directory_count++;
1758 if (inode->i_flags & EXT4_ENCRYPT_FL)
1759 add_encrypted_dir(ctx, ino);
1760 } else if (LINUX_S_ISREG (inode->i_mode)) {
1761 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1762 ctx->fs_regular_count++;
1763 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1764 e2fsck_pass1_check_device_inode(fs, inode)) {
1765 check_extents_inlinedata(ctx, &pctx);
1766 check_immutable(ctx, &pctx);
1767 check_size(ctx, &pctx);
1768 ctx->fs_chardev_count++;
1769 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1770 e2fsck_pass1_check_device_inode(fs, inode)) {
1771 check_extents_inlinedata(ctx, &pctx);
1772 check_immutable(ctx, &pctx);
1773 check_size(ctx, &pctx);
1774 ctx->fs_blockdev_count++;
1775 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1776 e2fsck_pass1_check_symlink(fs, ino, inode,
1778 check_immutable(ctx, &pctx);
1779 ctx->fs_symlinks_count++;
1780 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1781 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1783 } else if (ext2fs_inode_data_blocks(fs, inode) == 0) {
1784 ctx->fs_fast_symlinks_count++;
1785 check_blocks(ctx, &pctx, block_buf);
1786 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1790 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1791 e2fsck_pass1_check_device_inode(fs, inode)) {
1792 check_extents_inlinedata(ctx, &pctx);
1793 check_immutable(ctx, &pctx);
1794 check_size(ctx, &pctx);
1795 ctx->fs_fifo_count++;
1796 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1797 e2fsck_pass1_check_device_inode(fs, inode)) {
1798 check_extents_inlinedata(ctx, &pctx);
1799 check_immutable(ctx, &pctx);
1800 check_size(ctx, &pctx);
1801 ctx->fs_sockets_count++;
1803 mark_inode_bad(ctx, ino);
1804 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1805 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1806 if (inode->i_block[EXT2_IND_BLOCK])
1807 ctx->fs_ind_count++;
1808 if (inode->i_block[EXT2_DIND_BLOCK])
1809 ctx->fs_dind_count++;
1810 if (inode->i_block[EXT2_TIND_BLOCK])
1811 ctx->fs_tind_count++;
1813 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1814 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1815 (inode->i_block[EXT2_IND_BLOCK] ||
1816 inode->i_block[EXT2_DIND_BLOCK] ||
1817 inode->i_block[EXT2_TIND_BLOCK] ||
1818 ext2fs_file_acl_block(fs, inode))) {
1819 inodes_to_process[process_inode_count].ino = ino;
1820 inodes_to_process[process_inode_count].inode =
1821 *(struct ext2_inode_large *)inode;
1822 process_inode_count++;
1824 check_blocks(ctx, &pctx, block_buf);
1826 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1828 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1831 if (process_inode_count >= ctx->process_inode_size) {
1832 process_inodes(ctx, block_buf);
1834 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1838 process_inodes(ctx, block_buf);
1839 ext2fs_close_inode_scan(scan);
1842 reserve_block_for_root_repair(ctx);
1843 reserve_block_for_lnf_repair(ctx);
1846 * If any extended attribute blocks' reference counts need to
1847 * be adjusted, either up (ctx->refcount_extra), or down
1848 * (ctx->refcount), then fix them.
1850 if (ctx->refcount) {
1851 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1852 ea_refcount_free(ctx->refcount);
1855 if (ctx->refcount_extra) {
1856 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1858 ea_refcount_free(ctx->refcount_extra);
1859 ctx->refcount_extra = 0;
1862 if (ctx->invalid_bitmaps)
1863 handle_fs_bad_blocks(ctx);
1865 /* We don't need the block_ea_map any more */
1866 if (ctx->block_ea_map) {
1867 ext2fs_free_block_bitmap(ctx->block_ea_map);
1868 ctx->block_ea_map = 0;
1871 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
1872 clear_problem_context(&pctx);
1873 pctx.errcode = ext2fs_create_resize_inode(fs);
1875 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
1877 ctx->flags |= E2F_FLAG_ABORT;
1882 if (!pctx.errcode) {
1883 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
1885 inode->i_mtime = ctx->now;
1886 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
1889 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
1892 if (ctx->flags & E2F_FLAG_RESTART) {
1894 * Only the master copy of the superblock and block
1895 * group descriptors are going to be written during a
1896 * restart, so set the superblock to be used to be the
1897 * master superblock.
1899 ctx->use_superblock = 0;
1904 if (ctx->block_dup_map) {
1905 if (ctx->options & E2F_OPT_PREEN) {
1906 clear_problem_context(&pctx);
1907 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
1909 e2fsck_pass1_dupblocks(ctx, block_buf);
1911 ctx->flags |= E2F_FLAG_ALLOC_OK;
1912 ext2fs_free_mem(&inodes_to_process);
1914 e2fsck_use_inode_shortcuts(ctx, 0);
1917 ext2fs_close_inode_scan(scan);
1919 ext2fs_free_mem(&block_buf);
1921 ext2fs_free_mem(&inode);
1924 * The l+f inode may have been cleared, so zap it now and
1925 * later passes will recalculate it if necessary
1927 ctx->lost_and_found = 0;
1929 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
1930 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
1932 ctx->invalid_bitmaps++;
1934 #undef FINISH_INODE_LOOP
1937 * When the inode_scan routines call this callback at the end of the
1938 * glock group, call process_inodes.
1940 static errcode_t scan_callback(ext2_filsys fs,
1941 ext2_inode_scan scan EXT2FS_ATTR((unused)),
1942 dgrp_t group, void * priv_data)
1944 struct scan_callback_struct *scan_struct;
1947 scan_struct = (struct scan_callback_struct *) priv_data;
1948 ctx = scan_struct->ctx;
1950 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
1953 if ((ctx->progress)(ctx, 1, group+1,
1954 ctx->fs->group_desc_count))
1955 return EXT2_ET_CANCEL_REQUESTED;
1961 * Process the inodes in the "inodes to process" list.
1963 static void process_inodes(e2fsck_t ctx, char *block_buf)
1966 struct ext2_inode *old_stashed_inode;
1967 ext2_ino_t old_stashed_ino;
1968 const char *old_operation;
1970 struct problem_context pctx;
1973 printf("begin process_inodes: ");
1975 if (process_inode_count == 0)
1977 old_operation = ehandler_operation(0);
1978 old_stashed_inode = ctx->stashed_inode;
1979 old_stashed_ino = ctx->stashed_ino;
1980 qsort(inodes_to_process, process_inode_count,
1981 sizeof(struct process_inode_block), process_inode_cmp);
1982 clear_problem_context(&pctx);
1983 for (i=0; i < process_inode_count; i++) {
1984 pctx.inode = ctx->stashed_inode =
1985 (struct ext2_inode *) &inodes_to_process[i].inode;
1986 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
1989 printf("%u ", pctx.ino);
1991 sprintf(buf, _("reading indirect blocks of inode %u"),
1993 ehandler_operation(buf);
1994 check_blocks(ctx, &pctx, block_buf);
1995 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1998 ctx->stashed_inode = old_stashed_inode;
1999 ctx->stashed_ino = old_stashed_ino;
2000 process_inode_count = 0;
2002 printf("end process inodes\n");
2004 ehandler_operation(old_operation);
2007 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2009 const struct process_inode_block *ib_a =
2010 (const struct process_inode_block *) a;
2011 const struct process_inode_block *ib_b =
2012 (const struct process_inode_block *) b;
2015 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2016 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2019 * We only call process_inodes() for non-extent
2020 * inodes, so it's OK to pass NULL to
2021 * ext2fs_file_acl_block() here.
2023 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2024 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2026 ret = ib_a->ino - ib_b->ino;
2031 * Mark an inode as being bad in some what
2033 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2035 struct problem_context pctx;
2037 if (!ctx->inode_bad_map) {
2038 clear_problem_context(&pctx);
2040 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2041 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
2042 "inode_bad_map", &ctx->inode_bad_map);
2045 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2046 /* Should never get here */
2047 ctx->flags |= E2F_FLAG_ABORT;
2051 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2054 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino)
2056 struct problem_context pctx;
2058 if (!ctx->encrypted_dirs) {
2059 pctx.errcode = ext2fs_u32_list_create(&ctx->encrypted_dirs, 0);
2063 pctx.errcode = ext2fs_u32_list_add(ctx->encrypted_dirs, ino);
2064 if (pctx.errcode == 0)
2067 fix_problem(ctx, PR_1_ALLOCATE_ENCRYPTED_DIRLIST, &pctx);
2068 /* Should never get here */
2069 ctx->flags |= E2F_FLAG_ABORT;
2073 * This procedure will allocate the inode "bb" (badblock) map table
2075 static void alloc_bb_map(e2fsck_t ctx)
2077 struct problem_context pctx;
2079 clear_problem_context(&pctx);
2080 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2081 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2082 "inode_bb_map", &ctx->inode_bb_map);
2085 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2086 /* Should never get here */
2087 ctx->flags |= E2F_FLAG_ABORT;
2093 * This procedure will allocate the inode imagic table
2095 static void alloc_imagic_map(e2fsck_t ctx)
2097 struct problem_context pctx;
2099 clear_problem_context(&pctx);
2100 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2101 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
2102 "inode_imagic_map", &ctx->inode_imagic_map);
2105 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2106 /* Should never get here */
2107 ctx->flags |= E2F_FLAG_ABORT;
2113 * Marks a block as in use, setting the dup_map if it's been set
2114 * already. Called by process_block and process_bad_block.
2116 * WARNING: Assumes checks have already been done to make sure block
2117 * is valid. This is true in both process_block and process_bad_block.
2119 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
2121 struct problem_context pctx;
2123 clear_problem_context(&pctx);
2125 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
2126 if (!ctx->block_dup_map) {
2127 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
2128 _("multiply claimed block map"),
2129 EXT2FS_BMAP64_RBTREE, "block_dup_map",
2130 &ctx->block_dup_map);
2133 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
2135 /* Should never get here */
2136 ctx->flags |= E2F_FLAG_ABORT;
2140 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
2142 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
2146 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
2149 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
2150 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
2153 mark_block_used(ctx, block++);
2157 * Adjust the extended attribute block's reference counts at the end
2158 * of pass 1, either by subtracting out references for EA blocks that
2159 * are still referenced in ctx->refcount, or by adding references for
2160 * EA blocks that had extra references as accounted for in
2161 * ctx->refcount_extra.
2163 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
2164 char *block_buf, int adjust_sign)
2166 struct ext2_ext_attr_header *header;
2167 struct problem_context pctx;
2168 ext2_filsys fs = ctx->fs;
2173 clear_problem_context(&pctx);
2175 ea_refcount_intr_begin(refcount);
2177 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
2180 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
2183 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
2186 header = (struct ext2_ext_attr_header *) block_buf;
2187 pctx.blkcount = header->h_refcount;
2188 should_be = header->h_refcount + adjust_sign * count;
2189 pctx.num = should_be;
2190 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
2191 header->h_refcount = should_be;
2192 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
2196 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
2205 * Handle processing the extended attribute blocks
2207 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
2210 ext2_filsys fs = ctx->fs;
2211 ext2_ino_t ino = pctx->ino;
2212 struct ext2_inode *inode = pctx->inode;
2215 struct ext2_ext_attr_header *header;
2216 struct ext2_ext_attr_entry *entry;
2218 region_t region = 0;
2219 int failed_csum = 0;
2221 blk = ext2fs_file_acl_block(fs, inode);
2226 * If the Extended attribute flag isn't set, then a non-zero
2227 * file acl means that the inode is corrupted.
2229 * Or if the extended attribute block is an invalid block,
2230 * then the inode is also corrupted.
2232 if (!ext2fs_has_feature_xattr(fs->super) ||
2233 (blk < fs->super->s_first_data_block) ||
2234 (blk >= ext2fs_blocks_count(fs->super))) {
2235 mark_inode_bad(ctx, ino);
2239 /* If ea bitmap hasn't been allocated, create it */
2240 if (!ctx->block_ea_map) {
2241 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
2242 _("ext attr block map"),
2243 EXT2FS_BMAP64_RBTREE, "block_ea_map",
2244 &ctx->block_ea_map);
2245 if (pctx->errcode) {
2247 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
2248 ctx->flags |= E2F_FLAG_ABORT;
2253 /* Create the EA refcount structure if necessary */
2254 if (!ctx->refcount) {
2255 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
2256 if (pctx->errcode) {
2258 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2259 ctx->flags |= E2F_FLAG_ABORT;
2265 /* Debugging text */
2266 printf("Inode %u has EA block %u\n", ino, blk);
2269 /* Have we seen this EA block before? */
2270 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
2271 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
2273 /* Ooops, this EA was referenced more than it stated */
2274 if (!ctx->refcount_extra) {
2275 pctx->errcode = ea_refcount_create(0,
2276 &ctx->refcount_extra);
2277 if (pctx->errcode) {
2279 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2280 ctx->flags |= E2F_FLAG_ABORT;
2284 ea_refcount_increment(ctx->refcount_extra, blk, 0);
2289 * OK, we haven't seen this EA block yet. So we need to
2293 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
2294 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
2297 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
2300 if (pctx->errcode &&
2301 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
2305 header = (struct ext2_ext_attr_header *) block_buf;
2306 pctx->blk = ext2fs_file_acl_block(fs, inode);
2307 if (((ctx->ext_attr_ver == 1) &&
2308 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
2309 ((ctx->ext_attr_ver == 2) &&
2310 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
2311 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
2315 if (header->h_blocks != 1) {
2316 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
2320 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
2323 region = region_create(0, fs->blocksize);
2325 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
2326 ctx->flags |= E2F_FLAG_ABORT;
2329 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
2330 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2334 entry = (struct ext2_ext_attr_entry *)(header+1);
2335 end = block_buf + fs->blocksize;
2336 while ((char *)entry < end && *(__u32 *)entry) {
2339 if (region_allocate(region, (char *)entry - (char *)header,
2340 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
2341 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2345 if ((ctx->ext_attr_ver == 1 &&
2346 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
2347 (ctx->ext_attr_ver == 2 &&
2348 entry->e_name_index == 0)) {
2349 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
2353 if (entry->e_value_block != 0) {
2354 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2357 if (entry->e_value_offs + entry->e_value_size > fs->blocksize) {
2358 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2362 if (entry->e_value_size &&
2363 region_allocate(region, entry->e_value_offs,
2364 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
2365 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2369 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
2370 entry->e_value_offs);
2372 if (entry->e_hash != hash) {
2373 pctx->num = entry->e_hash;
2374 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
2376 entry->e_hash = hash;
2379 entry = EXT2_EXT_ATTR_NEXT(entry);
2381 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
2382 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2385 region_free(region);
2388 * We only get here if there was no other errors that were fixed.
2389 * If there was a checksum fail, ask to correct it.
2392 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
2393 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
2399 count = header->h_refcount - 1;
2401 ea_refcount_store(ctx->refcount, blk, count);
2402 mark_block_used(ctx, blk);
2403 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
2408 region_free(region);
2409 ext2fs_file_acl_block_set(fs, inode, 0);
2410 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
2414 /* Returns 1 if bad htree, 0 if OK */
2415 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
2416 ext2_ino_t ino, struct ext2_inode *inode,
2419 struct ext2_dx_root_info *root;
2420 ext2_filsys fs = ctx->fs;
2424 if ((!LINUX_S_ISDIR(inode->i_mode) &&
2425 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
2426 (!ext2fs_has_feature_dir_index(fs->super) &&
2427 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
2430 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
2432 if ((pctx->errcode) ||
2434 (blk < fs->super->s_first_data_block) ||
2435 (blk >= ext2fs_blocks_count(fs->super))) {
2436 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2442 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
2443 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2446 /* XXX should check that beginning matches a directory */
2447 root = (struct ext2_dx_root_info *) (block_buf + 24);
2449 if ((root->reserved_zero || root->info_length < 8) &&
2450 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2453 pctx->num = root->hash_version;
2454 if ((root->hash_version != EXT2_HASH_LEGACY) &&
2455 (root->hash_version != EXT2_HASH_HALF_MD4) &&
2456 (root->hash_version != EXT2_HASH_TEA) &&
2457 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
2460 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
2461 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
2464 pctx->num = root->indirect_levels;
2465 if ((root->indirect_levels > 1) &&
2466 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
2472 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
2473 struct ext2_inode *inode, int restart_flag,
2477 inode->i_links_count = 0;
2478 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
2479 inode->i_dtime = ctx->now;
2482 * If a special inode has such rotten block mappings that we
2483 * want to clear the whole inode, be sure to actually zap
2484 * the block maps because i_links_count isn't checked for
2485 * special inodes, and we'll end up right back here the next
2488 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
2489 memset(inode->i_block, 0, sizeof(inode->i_block));
2491 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
2492 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
2493 if (ctx->inode_reg_map)
2494 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
2495 if (ctx->inode_bad_map)
2496 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
2499 * If the inode was partially accounted for before processing
2500 * was aborted, we need to restart the pass 1 scan.
2502 ctx->flags |= restart_flag;
2504 if (ino == EXT2_BAD_INO)
2505 memset(inode, 0, sizeof(struct ext2_inode));
2507 e2fsck_write_inode(ctx, ino, inode, source);
2511 * Use the multiple-blocks reclamation code to fix alignment problems in
2512 * a bigalloc filesystem. We want a logical cluster to map to *only* one
2513 * physical cluster, and we want the block offsets within that cluster to
2516 static int has_unaligned_cluster_map(e2fsck_t ctx,
2517 blk64_t last_pblk, e2_blkcnt_t last_lblk,
2518 blk64_t pblk, blk64_t lblk)
2520 blk64_t cluster_mask;
2522 if (!ctx->fs->cluster_ratio_bits)
2524 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
2527 * If the block in the logical cluster doesn't align with the block in
2528 * the physical cluster...
2530 if ((lblk & cluster_mask) != (pblk & cluster_mask))
2534 * If we cross a physical cluster boundary within a logical cluster...
2536 if (last_pblk && (lblk & cluster_mask) != 0 &&
2537 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
2538 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
2544 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
2545 struct process_block_struct *pb,
2546 blk64_t start_block, blk64_t end_block,
2548 ext2_extent_handle_t ehandle,
2551 struct ext2fs_extent extent;
2552 blk64_t blk, last_lblk;
2553 e2_blkcnt_t blockcnt;
2555 int is_dir, is_leaf;
2557 struct ext2_extent_info info;
2558 int failed_csum = 0;
2560 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
2563 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
2566 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
2567 !pb->eti.force_rebuild) {
2568 struct extent_tree_level *etl;
2570 etl = pb->eti.ext_info + info.curr_level;
2571 etl->num_extents += info.num_entries;
2572 etl->max_extents += info.max_entries;
2574 * Implementation wart: Splitting extent blocks when appending
2575 * will leave the old block with one free entry. Therefore
2576 * unless the node is totally full, pretend that a non-root
2577 * extent block can hold one fewer entry than it actually does,
2578 * so that we don't repeatedly rebuild the extent tree.
2580 if (info.curr_level && info.num_entries < info.max_entries)
2584 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
2586 while ((pctx->errcode == 0 ||
2587 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
2588 info.num_entries-- > 0) {
2589 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
2590 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
2591 last_lblk = extent.e_lblk + extent.e_len - 1;
2594 pctx->blk = extent.e_pblk;
2595 pctx->blk2 = extent.e_lblk;
2596 pctx->num = extent.e_len;
2597 pctx->blkcount = extent.e_lblk + extent.e_len;
2599 if (extent.e_pblk == 0 ||
2600 extent.e_pblk < ctx->fs->super->s_first_data_block ||
2601 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
2602 problem = PR_1_EXTENT_BAD_START_BLK;
2603 else if (extent.e_lblk < start_block)
2604 problem = PR_1_OUT_OF_ORDER_EXTENTS;
2605 else if ((end_block && last_lblk > end_block) &&
2606 (!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT &&
2607 last_lblk > eof_block)))
2608 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
2609 else if (is_leaf && extent.e_len == 0)
2610 problem = PR_1_EXTENT_LENGTH_ZERO;
2612 (extent.e_pblk + extent.e_len) >
2613 ext2fs_blocks_count(ctx->fs->super))
2614 problem = PR_1_EXTENT_ENDS_BEYOND;
2615 else if (is_leaf && is_dir &&
2616 ((extent.e_lblk + extent.e_len) >
2617 (1 << (21 - ctx->fs->super->s_log_block_size))))
2618 problem = PR_1_TOOBIG_DIR;
2620 if (is_leaf && problem == 0 && extent.e_len > 0 &&
2621 region_allocate(pb->region, extent.e_lblk, extent.e_len))
2622 problem = PR_1_EXTENT_COLLISION;
2625 * Uninitialized blocks in a directory? Clear the flag and
2626 * we'll interpret the blocks later.
2628 if (try_repairs && is_dir && problem == 0 &&
2629 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
2630 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
2631 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
2632 pb->inode_modified = 1;
2633 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
2640 if (try_repairs && problem) {
2642 if (fix_problem(ctx, problem, pctx)) {
2643 if (ctx->invalid_bitmaps) {
2645 * If fsck knows the bitmaps are bad,
2646 * skip to the next extent and
2647 * try to clear this extent again
2648 * after fixing the bitmaps, by
2651 pctx->errcode = ext2fs_extent_get(
2653 EXT2_EXTENT_NEXT_SIB,
2655 ctx->flags |= E2F_FLAG_RESTART_LATER;
2656 if (pctx->errcode ==
2657 EXT2_ET_NO_CURRENT_NODE) {
2663 e2fsck_read_bitmaps(ctx);
2664 pb->inode_modified = 1;
2666 ext2fs_extent_delete(ehandle, 0);
2667 if (pctx->errcode) {
2668 pctx->str = "ext2fs_extent_delete";
2671 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2672 if (pctx->errcode &&
2673 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
2674 pctx->str = "ext2fs_extent_fix_parents";
2677 pctx->errcode = ext2fs_extent_get(ehandle,
2678 EXT2_EXTENT_CURRENT,
2680 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
2691 blk64_t lblk = extent.e_lblk;
2692 int next_try_repairs = 1;
2694 blk = extent.e_pblk;
2697 * If this lower extent block collides with critical
2698 * metadata, don't try to repair the damage. Pass 1b
2699 * will reallocate the block; then we can try again.
2701 if (pb->ino != EXT2_RESIZE_INO &&
2702 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
2704 next_try_repairs = 0;
2707 PR_1_CRITICAL_METADATA_COLLISION,
2709 ctx->flags |= E2F_FLAG_RESTART_LATER;
2711 pctx->errcode = ext2fs_extent_get(ehandle,
2712 EXT2_EXTENT_DOWN, &extent);
2713 if (pctx->errcode &&
2714 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
2715 pctx->str = "EXT2_EXTENT_DOWN";
2716 problem = PR_1_EXTENT_HEADER_INVALID;
2717 if (!next_try_repairs)
2719 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
2720 goto report_problem;
2723 /* The next extent should match this index's logical start */
2724 if (extent.e_lblk != lblk) {
2725 struct ext2_extent_info e_info;
2727 ext2fs_extent_get_info(ehandle, &e_info);
2729 pctx->blk2 = extent.e_lblk;
2730 pctx->num = e_info.curr_level - 1;
2731 problem = PR_1_EXTENT_INDEX_START_INVALID;
2732 if (fix_problem(ctx, problem, pctx)) {
2733 pb->inode_modified = 1;
2735 ext2fs_extent_fix_parents(ehandle);
2736 if (pctx->errcode) {
2737 pctx->str = "ext2fs_extent_fix_parents";
2742 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
2743 last_lblk, eof_block, ehandle,
2747 pctx->errcode = ext2fs_extent_get(ehandle,
2748 EXT2_EXTENT_UP, &extent);
2749 if (pctx->errcode) {
2750 pctx->str = "EXT2_EXTENT_UP";
2753 mark_block_used(ctx, blk);
2758 if ((pb->previous_block != 0) &&
2759 (pb->previous_block+1 != extent.e_pblk)) {
2760 if (ctx->options & E2F_OPT_FRAGCHECK) {
2765 else if (pb->is_reg)
2768 printf(("%6lu(%c): expecting %6lu "
2770 "phys %6lu log %lu len %lu\n"),
2771 (unsigned long) pctx->ino, type,
2772 (unsigned long) pb->previous_block+1,
2773 (unsigned long) extent.e_pblk,
2774 (unsigned long) extent.e_lblk,
2775 (unsigned long) extent.e_len);
2780 * If we notice a gap in the logical block mappings of an
2781 * extent-mapped directory, offer to close the hole by
2782 * moving the logical block down, otherwise we'll go mad in
2783 * pass 3 allocating empty directory blocks to fill the hole.
2785 if (try_repairs && is_dir &&
2786 pb->last_block + 1 < (e2_blkcnt_t)extent.e_lblk) {
2789 new_lblk = pb->last_block + 1;
2790 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
2791 new_lblk = ((new_lblk +
2792 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
2793 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
2795 EXT2FS_CLUSTER_MASK(ctx->fs));
2796 pctx->blk = extent.e_lblk;
2797 pctx->blk2 = new_lblk;
2798 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
2799 extent.e_lblk = new_lblk;
2800 pb->inode_modified = 1;
2801 pctx->errcode = ext2fs_extent_replace(ehandle,
2803 if (pctx->errcode) {
2807 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2809 goto failed_add_dir_block;
2810 pctx->errcode = ext2fs_extent_goto(ehandle,
2813 goto failed_add_dir_block;
2814 last_lblk = extent.e_lblk + extent.e_len - 1;
2819 while (is_dir && (++pb->last_db_block <
2820 (e2_blkcnt_t) extent.e_lblk)) {
2821 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist,
2824 if (pctx->errcode) {
2826 pctx->num = pb->last_db_block;
2827 goto failed_add_dir_block;
2830 if (!ctx->fs->cluster_ratio_bits) {
2831 mark_blocks_used(ctx, extent.e_pblk, extent.e_len);
2832 pb->num_blocks += extent.e_len;
2834 for (blk = extent.e_pblk, blockcnt = extent.e_lblk, i = 0;
2836 blk++, blockcnt++, i++) {
2837 if (ctx->fs->cluster_ratio_bits &&
2838 !(pb->previous_block &&
2839 (EXT2FS_B2C(ctx->fs, blk) ==
2840 EXT2FS_B2C(ctx->fs, pb->previous_block)) &&
2841 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
2842 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
2843 mark_block_used(ctx, blk);
2846 if (has_unaligned_cluster_map(ctx, pb->previous_block,
2847 pb->last_block, blk,
2849 pctx->blk = blockcnt;
2851 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
2852 mark_block_used(ctx, blk);
2853 mark_block_used(ctx, blk);
2855 pb->last_block = blockcnt;
2856 pb->previous_block = blk;
2859 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pctx->ino, blk, blockcnt);
2860 if (pctx->errcode) {
2862 pctx->num = blockcnt;
2863 failed_add_dir_block:
2864 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
2865 /* Should never get here */
2866 ctx->flags |= E2F_FLAG_ABORT;
2871 if (is_dir && extent.e_len > 0)
2872 pb->last_db_block = blockcnt - 1;
2873 pb->previous_block = extent.e_pblk + extent.e_len - 1;
2874 start_block = pb->last_block = last_lblk;
2875 if (is_leaf && !is_dir &&
2876 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
2877 pb->last_init_lblock = last_lblk;
2879 pctx->errcode = ext2fs_extent_get(ehandle,
2880 EXT2_EXTENT_NEXT_SIB,
2884 /* Failed csum but passes checks? Ask to fix checksum. */
2886 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
2887 pb->inode_modified = 1;
2888 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
2893 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
2897 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
2898 struct process_block_struct *pb)
2900 struct ext2_extent_info info;
2901 struct ext2_inode *inode = pctx->inode;
2902 ext2_extent_handle_t ehandle;
2903 ext2_filsys fs = ctx->fs;
2904 ext2_ino_t ino = pctx->ino;
2907 struct ext3_extent_header *eh;
2909 /* Check for a proper extent header... */
2910 eh = (struct ext3_extent_header *) &inode->i_block[0];
2911 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
2913 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
2914 e2fsck_clear_inode(ctx, ino, inode, 0,
2915 "check_blocks_extents");
2920 /* ...since this function doesn't fail if i_block is zeroed. */
2921 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
2922 if (pctx->errcode) {
2923 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
2924 e2fsck_clear_inode(ctx, ino, inode, 0,
2925 "check_blocks_extents");
2930 retval = ext2fs_extent_get_info(ehandle, &info);
2932 int max_depth = info.max_depth;
2934 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
2935 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
2936 ctx->extent_depth_count[max_depth]++;
2939 /* Check maximum extent depth */
2940 pctx->blk = info.max_depth;
2941 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
2942 if (pctx->blk2 < pctx->blk &&
2943 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
2944 pb->eti.force_rebuild = 1;
2946 /* Can we collect extent tree level stats? */
2947 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
2948 if (pctx->blk2 > pctx->blk)
2949 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
2950 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
2951 pb->eti.ino = pb->ino;
2953 pb->region = region_create(0, info.max_lblk);
2955 ext2fs_extent_free(ehandle);
2956 fix_problem(ctx, PR_1_EXTENT_ALLOC_REGION_ABORT, pctx);
2957 ctx->flags |= E2F_FLAG_ABORT;
2961 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
2962 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
2963 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
2964 if (pctx->errcode &&
2965 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
2967 inode->i_blocks = 0;
2968 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
2969 "check_blocks_extents");
2972 region_free(pb->region);
2974 ext2fs_extent_free(ehandle);
2976 /* Rebuild unless it's a dir and we're rehashing it */
2977 if (LINUX_S_ISDIR(inode->i_mode) &&
2978 e2fsck_dir_will_be_rehashed(ctx, ino))
2981 if (ctx->options & E2F_OPT_CONVERT_BMAP)
2982 e2fsck_rebuild_extents_later(ctx, ino);
2984 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
2988 * In fact we don't need to check blocks for an inode with inline data
2989 * because this inode doesn't have any blocks. In this function all
2990 * we need to do is add this inode into dblist when it is a directory.
2992 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
2993 struct process_block_struct *pb)
2996 size_t inline_data_size = 0;
3003 /* Process the dirents in i_block[] as the "first" block. */
3004 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
3008 /* Process the dirents in the EA as a "second" block. */
3009 flags = ctx->fs->flags;
3010 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3011 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
3013 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3014 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3015 if (pctx->errcode) {
3020 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
3023 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
3031 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3032 ctx->flags |= E2F_FLAG_ABORT;
3036 * This subroutine is called on each inode to account for all of the
3037 * blocks used by that inode.
3039 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
3042 ext2_filsys fs = ctx->fs;
3043 struct process_block_struct pb;
3044 ext2_ino_t ino = pctx->ino;
3045 struct ext2_inode *inode = pctx->inode;
3046 unsigned bad_size = 0;
3047 int dirty_inode = 0;
3055 pb.last_init_lblock = -1;
3056 pb.last_db_block = -1;
3057 pb.num_illegal_blocks = 0;
3058 pb.suppress = 0; pb.clear = 0;
3061 pb.previous_block = 0;
3062 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
3063 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
3064 pb.max_blocks = 1 << (31 - fs->super->s_log_block_size);
3068 pb.inode_modified = 0;
3069 pb.eti.force_rebuild = 0;
3073 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
3074 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
3076 if (check_ext_attr(ctx, pctx, block_buf)) {
3077 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3082 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
3083 check_blocks_inline_data(ctx, pctx, &pb);
3084 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
3085 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
3086 check_blocks_extents(ctx, pctx, &pb);
3090 * If we've modified the inode, write it out before
3091 * iterate() tries to use it.
3094 e2fsck_write_inode(ctx, ino, inode,
3099 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3100 pctx->errcode = ext2fs_block_iterate3(fs, ino,
3101 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
3102 block_buf, process_block, &pb);
3104 * We do not have uninitialized extents in non extent
3107 pb.last_init_lblock = pb.last_block;
3109 * If iterate() changed a block mapping, we have to
3110 * re-read the inode. If we decide to clear the
3111 * inode after clearing some stuff, we'll re-write the
3112 * bad mappings into the inode!
3114 if (pb.inode_modified)
3115 e2fsck_read_inode(ctx, ino, inode,
3117 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3118 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3120 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
3122 printf("bmap rebuild ino=%d\n", ino);
3124 if (!LINUX_S_ISDIR(inode->i_mode) ||
3125 !e2fsck_dir_will_be_rehashed(ctx, ino))
3126 e2fsck_rebuild_extents_later(ctx, ino);
3130 end_problem_latch(ctx, PR_LATCH_BLOCK);
3131 end_problem_latch(ctx, PR_LATCH_TOOBIG);
3132 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3135 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
3137 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
3138 if (LINUX_S_ISDIR(inode->i_mode))
3139 ctx->fs_fragmented_dir++;
3141 ctx->fs_fragmented++;
3145 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3150 if (inode->i_flags & EXT2_INDEX_FL) {
3151 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
3152 inode->i_flags &= ~EXT2_INDEX_FL;
3155 e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
3159 if (!pb.num_blocks && pb.is_dir &&
3160 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
3161 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
3162 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
3163 ctx->fs_directory_count--;
3168 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
3169 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super))) {
3170 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
3171 ino, pb.num_blocks * fs->blocksize);
3172 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
3176 if (!ext2fs_has_feature_huge_file(fs->super) ||
3177 !(inode->i_flags & EXT4_HUGE_FILE_FL))
3178 pb.num_blocks *= (fs->blocksize / 512);
3179 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
3181 printf("inode %u, i_size = %u, last_block = %lld, i_blocks=%llu, num_blocks = %llu\n",
3182 ino, inode->i_size, pb.last_block, ext2fs_inode_i_blocks(fs, inode),
3186 int nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
3187 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
3193 flags = ctx->fs->flags;
3194 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3195 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
3197 ctx->fs->flags = (flags &
3198 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3200 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3201 if (err || size != inode->i_size) {
3205 } else if (inode->i_size & (fs->blocksize - 1))
3207 else if (nblock > (pb.last_block + 1))
3209 else if (nblock < (pb.last_block + 1)) {
3210 if (((pb.last_block + 1) - nblock) >
3211 fs->super->s_prealloc_dir_blocks)
3215 e2_blkcnt_t blkpg = ctx->blocks_per_page;
3217 size = EXT2_I_SIZE(inode);
3218 if ((pb.last_init_lblock >= 0) &&
3219 /* allow allocated blocks to end of PAGE_SIZE */
3220 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
3221 (pb.last_init_lblock / blkpg * blkpg != pb.last_init_lblock ||
3222 size < (__u64)(pb.last_init_lblock & ~(blkpg-1)) *
3225 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3226 size > ext2_max_sizes[fs->super->s_log_block_size])
3227 /* too big for a direct/indirect-mapped file */
3229 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3231 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
3232 /* too big for an extent-based file - 32bit ee_block */
3235 /* i_size for symlinks is checked elsewhere */
3236 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
3237 /* Did inline_data set pctx->num earlier? */
3239 pctx->num = (pb.last_block + 1) * fs->blocksize;
3240 pctx->group = bad_size;
3241 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
3242 if (LINUX_S_ISDIR(inode->i_mode))
3243 pctx->num &= 0xFFFFFFFFULL;
3244 ext2fs_inode_size_set(fs, inode, pctx->num);
3245 if (EXT2_I_SIZE(inode) == 0 &&
3246 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
3247 memset(inode->i_block, 0,
3248 sizeof(inode->i_block));
3249 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
3255 if (LINUX_S_ISREG(inode->i_mode) &&
3256 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3258 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
3259 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
3260 (ext2fs_has_feature_huge_file(fs->super) &&
3261 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
3262 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
3263 pctx->num = pb.num_blocks;
3264 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
3265 inode->i_blocks = pb.num_blocks;
3266 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
3273 * The kernel gets mad if we ask it to allocate bigalloc clusters to
3274 * a block mapped file, so rebuild it as an extent file. We can skip
3275 * symlinks because they're never rewritten.
3277 if (ext2fs_has_feature_bigalloc(fs->super) &&
3278 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
3279 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
3280 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
3281 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
3282 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
3283 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
3288 if (ctx->dirs_to_hash && pb.is_dir &&
3289 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
3290 !(inode->i_flags & EXT2_INDEX_FL) &&
3291 ((inode->i_size / fs->blocksize) >= 3))
3292 e2fsck_rehash_dir_later(ctx, ino);
3296 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
3301 * Helper function called by process block when an illegal block is
3302 * found. It returns a description about why the block is illegal
3304 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
3308 static char problem[80];
3310 super = fs->super->s_first_data_block;
3311 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
3312 if (block < super) {
3313 sprintf(problem, "< FIRSTBLOCK (%u)", super);
3315 } else if (block >= ext2fs_blocks_count(fs->super)) {
3316 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
3319 for (i = 0; i < fs->group_desc_count; i++) {
3320 if (block == super) {
3321 sprintf(problem, "is the superblock in group %d", i);
3324 if (block > super &&
3325 block <= (super + fs->desc_blocks)) {
3326 sprintf(problem, "is in the group descriptors "
3330 if (block == ext2fs_block_bitmap_loc(fs, i)) {
3331 sprintf(problem, "is the block bitmap of group %d", i);
3334 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
3335 sprintf(problem, "is the inode bitmap of group %d", i);
3338 if (block >= ext2fs_inode_table_loc(fs, i) &&
3339 (block < ext2fs_inode_table_loc(fs, i)
3340 + fs->inode_blocks_per_group)) {
3341 sprintf(problem, "is in the inode table of group %d",
3345 super += fs->super->s_blocks_per_group;
3352 * This is a helper function for check_blocks().
3354 static int process_block(ext2_filsys fs,
3356 e2_blkcnt_t blockcnt,
3357 blk64_t ref_block EXT2FS_ATTR((unused)),
3358 int ref_offset EXT2FS_ATTR((unused)),
3361 struct process_block_struct *p;
3362 struct problem_context *pctx;
3363 blk64_t blk = *block_nr;
3365 problem_t problem = 0;
3368 p = (struct process_block_struct *) priv_data;
3373 * For a directory, add logical block zero for processing even if it's
3374 * not mapped or we'll be perennially stuck with broken "." and ".."
3377 if (p->is_dir && blockcnt == 0 && blk == 0) {
3378 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
3379 if (pctx->errcode) {
3381 pctx->num = blockcnt;
3382 goto failed_add_dir_block;
3391 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
3396 * Simplistic fragmentation check. We merely require that the
3397 * file be contiguous. (Which can never be true for really
3398 * big files that are greater than a block group.)
3400 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
3401 if (p->previous_block+1 != blk) {
3402 if (ctx->options & E2F_OPT_FRAGCHECK) {
3410 printf(_("%6lu(%c): expecting %6lu "
3411 "got phys %6lu (blkcnt %lld)\n"),
3412 (unsigned long) pctx->ino, type,
3413 (unsigned long) p->previous_block+1,
3414 (unsigned long) blk,
3421 if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
3422 problem = PR_1_TOOBIG_DIR;
3423 if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
3424 problem = PR_1_TOOBIG_REG;
3425 if (!p->is_dir && !p->is_reg && blockcnt > 0)
3426 problem = PR_1_TOOBIG_SYMLINK;
3428 if (blk < fs->super->s_first_data_block ||
3429 blk >= ext2fs_blocks_count(fs->super))
3430 problem = PR_1_ILLEGAL_BLOCK_NUM;
3433 * If this IND/DIND/TIND block is squatting atop some critical metadata
3434 * (group descriptors, superblock, bitmap, inode table), any write to
3435 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
3436 * fix that and restart fsck.
3439 p->ino != EXT2_RESIZE_INO &&
3440 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
3442 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
3443 ctx->flags |= E2F_FLAG_RESTART_LATER;
3447 p->num_illegal_blocks++;
3449 * A bit of subterfuge here -- we're trying to fix a block
3450 * mapping, but the IND/DIND/TIND block could have collided
3451 * with some critical metadata. So, fix the in-core mapping so
3452 * iterate won't go insane, but return 0 instead of
3453 * BLOCK_CHANGED so that it won't write the remapping out to
3454 * our multiply linked block.
3456 * Even if we previously determined that an *IND block
3457 * conflicts with critical metadata, we must still try to
3458 * iterate the *IND block as if it is an *IND block to find and
3459 * mark the blocks it points to. Better to be overly cautious
3460 * with the used_blocks map so that we don't move the *IND
3461 * block to a block that's really in use!
3463 if (p->ino != EXT2_RESIZE_INO &&
3465 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3470 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
3471 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
3475 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
3477 set_latch_flags(PR_LATCH_BLOCK,
3482 pctx->blkcount = blockcnt;
3483 if (fix_problem(ctx, problem, pctx)) {
3484 blk = *block_nr = 0;
3485 ret_code = BLOCK_CHANGED;
3486 p->inode_modified = 1;
3488 * If the directory block is too big and is beyond the
3489 * end of the FS, don't bother trying to add it for
3490 * processing -- the kernel would never have created a
3491 * directory this large, and we risk an ENOMEM abort.
3492 * In any case, the toobig handler for extent-based
3493 * directories also doesn't feed toobig blocks to
3496 if (problem == PR_1_TOOBIG_DIR)
3503 if (p->ino == EXT2_RESIZE_INO) {
3505 * The resize inode has already be sanity checked
3506 * during pass #0 (the superblock checks). All we
3507 * have to do is mark the double indirect block as
3508 * being in use; all of the other blocks are handled
3509 * by mark_table_blocks()).
3511 if (blockcnt == BLOCK_COUNT_DIND)
3512 mark_block_used(ctx, blk);
3514 } else if (!(ctx->fs->cluster_ratio_bits &&
3515 p->previous_block &&
3516 (EXT2FS_B2C(ctx->fs, blk) ==
3517 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
3518 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
3519 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
3520 mark_block_used(ctx, blk);
3522 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
3523 p->last_block, blk, blockcnt)) {
3524 pctx->blk = blockcnt;
3526 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3527 mark_block_used(ctx, blk);
3528 mark_block_used(ctx, blk);
3531 p->last_block = blockcnt;
3532 p->previous_block = blk;
3534 if (p->is_dir && (blockcnt >= 0)) {
3535 while (++p->last_db_block < blockcnt) {
3536 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
3539 if (pctx->errcode) {
3541 pctx->num = p->last_db_block;
3542 goto failed_add_dir_block;
3545 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
3547 if (pctx->errcode) {
3549 pctx->num = blockcnt;
3550 failed_add_dir_block:
3551 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3552 /* Should never get here */
3553 ctx->flags |= E2F_FLAG_ABORT;
3560 static int process_bad_block(ext2_filsys fs,
3562 e2_blkcnt_t blockcnt,
3563 blk64_t ref_block EXT2FS_ATTR((unused)),
3564 int ref_offset EXT2FS_ATTR((unused)),
3567 struct process_block_struct *p;
3568 blk64_t blk = *block_nr;
3569 blk64_t first_block;
3571 struct problem_context *pctx;
3577 p = (struct process_block_struct *) priv_data;
3581 pctx->ino = EXT2_BAD_INO;
3583 pctx->blkcount = blockcnt;
3585 if ((blk < fs->super->s_first_data_block) ||
3586 (blk >= ext2fs_blocks_count(fs->super))) {
3587 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
3589 return BLOCK_CHANGED;
3595 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
3597 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
3599 return BLOCK_CHANGED;
3601 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3604 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
3607 return BLOCK_CHANGED;
3609 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3612 mark_block_used(ctx, blk);
3616 printf ("DEBUG: Marking %u as bad.\n", blk);
3618 ctx->fs_badblocks_count++;
3620 * If the block is not used, then mark it as used and return.
3621 * If it is already marked as found, this must mean that
3622 * there's an overlap between the filesystem table blocks
3623 * (bitmaps and inode table) and the bad block list.
3625 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
3626 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
3630 * Try to find the where the filesystem block was used...
3632 first_block = fs->super->s_first_data_block;
3634 for (i = 0; i < fs->group_desc_count; i++ ) {
3637 if (!ext2fs_bg_has_super(fs, i))
3639 if (blk == first_block) {
3641 if (fix_problem(ctx,
3642 PR_1_BAD_PRIMARY_SUPERBLOCK,
3645 return BLOCK_CHANGED;
3649 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
3652 if ((blk > first_block) &&
3653 (blk <= first_block + fs->desc_blocks)) {
3655 pctx->blk = *block_nr;
3656 if (fix_problem(ctx,
3657 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
3659 return BLOCK_CHANGED;
3663 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
3667 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
3668 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
3669 ctx->invalid_block_bitmap_flag[i]++;
3670 ctx->invalid_bitmaps++;
3674 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
3675 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
3676 ctx->invalid_inode_bitmap_flag[i]++;
3677 ctx->invalid_bitmaps++;
3681 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
3682 (blk < (ext2fs_inode_table_loc(fs, i) +
3683 fs->inode_blocks_per_group))) {
3685 * If there are bad blocks in the inode table,
3686 * the inode scan code will try to do
3687 * something reasonable automatically.
3691 first_block += fs->super->s_blocks_per_group;
3694 * If we've gotten to this point, then the only
3695 * possibility is that the bad block inode meta data
3696 * is using a bad block.
3698 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
3699 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
3700 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
3702 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
3704 return BLOCK_CHANGED;
3706 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3713 /* Warn user that the block wasn't claimed */
3714 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
3719 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
3720 const char *name, int num, blk64_t *new_block)
3722 ext2_filsys fs = ctx->fs;
3724 blk64_t old_block = *new_block;
3727 unsigned flexbg_size;
3730 struct problem_context pctx;
3732 clear_problem_context(&pctx);
3735 pctx.blk = old_block;
3739 * For flex_bg filesystems, first try to allocate the metadata
3740 * within the flex_bg, and if that fails then try finding the
3741 * space anywhere in the filesystem.
3743 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
3745 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
3746 flexbg = group / flexbg_size;
3747 first_block = ext2fs_group_first_block2(fs,
3748 flexbg_size * flexbg);
3749 last_grp = group | (flexbg_size - 1);
3750 if (last_grp >= fs->group_desc_count)
3751 last_grp = fs->group_desc_count - 1;
3752 last_block = ext2fs_group_last_block2(fs, last_grp);
3754 last_block = ext2fs_group_last_block2(fs, group);
3755 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
3756 num, ctx->block_found_map,
3758 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
3759 pctx.errcode = ext2fs_get_free_blocks2(fs,
3760 fs->super->s_first_data_block,
3761 ext2fs_blocks_count(fs->super),
3762 num, ctx->block_found_map, new_block);
3765 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
3766 ext2fs_unmark_valid(fs);
3767 ctx->flags |= E2F_FLAG_ABORT;
3770 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
3772 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
3773 ext2fs_unmark_valid(fs);
3774 ctx->flags |= E2F_FLAG_ABORT;
3777 ext2fs_mark_super_dirty(fs);
3778 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
3779 pctx.blk2 = *new_block;
3780 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
3781 PR_1_RELOC_TO), &pctx);
3783 for (i = 0; i < num; i++) {
3785 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
3787 pctx.errcode = io_channel_read_blk64(fs->io,
3788 old_block + i, 1, buf);
3790 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
3791 pctx.blk = (*new_block) + i;
3792 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
3795 pctx.blk = (*new_block) + i;
3796 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
3801 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
3803 ext2fs_free_mem(&buf);
3807 * This routine gets called at the end of pass 1 if bad blocks are
3808 * detected in the superblock, group descriptors, inode_bitmaps, or
3809 * block bitmaps. At this point, all of the blocks have been mapped
3810 * out, so we can try to allocate new block(s) to replace the bad
3813 static void handle_fs_bad_blocks(e2fsck_t ctx)
3815 ext2_filsys fs = ctx->fs;
3817 blk64_t first_block;
3820 for (i = 0; i < fs->group_desc_count; i++) {
3821 first_block = ext2fs_group_first_block2(fs, i);
3823 if (ctx->invalid_block_bitmap_flag[i]) {
3824 new_blk = ext2fs_block_bitmap_loc(fs, i);
3825 new_table_block(ctx, first_block, i, _("block bitmap"),
3827 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
3829 if (ctx->invalid_inode_bitmap_flag[i]) {
3830 new_blk = ext2fs_inode_bitmap_loc(fs, i);
3831 new_table_block(ctx, first_block, i, _("inode bitmap"),
3833 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
3835 if (ctx->invalid_inode_table_flag[i]) {
3836 new_blk = ext2fs_inode_table_loc(fs, i);
3837 new_table_block(ctx, first_block, i, _("inode table"),
3838 fs->inode_blocks_per_group,
3840 ext2fs_inode_table_loc_set(fs, i, new_blk);
3841 ctx->flags |= E2F_FLAG_RESTART;
3844 ctx->invalid_bitmaps = 0;
3848 * This routine marks all blocks which are used by the superblock,
3849 * group descriptors, inode bitmaps, and block bitmaps.
3851 static void mark_table_blocks(e2fsck_t ctx)
3853 ext2_filsys fs = ctx->fs;
3857 struct problem_context pctx;
3859 clear_problem_context(&pctx);
3861 for (i = 0; i < fs->group_desc_count; i++) {
3864 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
3865 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
3868 * Mark the blocks used for the inode table
3870 if (ext2fs_inode_table_loc(fs, i)) {
3871 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
3872 j < fs->inode_blocks_per_group;
3874 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3877 if (!ctx->invalid_inode_table_flag[i] &&
3879 PR_1_ITABLE_CONFLICT, &pctx)) {
3880 ctx->invalid_inode_table_flag[i]++;
3881 ctx->invalid_bitmaps++;
3884 ext2fs_mark_block_bitmap2(
3885 ctx->block_found_map, b);
3886 ext2fs_mark_block_bitmap2(
3887 ctx->block_metadata_map, b);
3893 * Mark block used for the block bitmap
3895 if (ext2fs_block_bitmap_loc(fs, i)) {
3896 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3897 ext2fs_block_bitmap_loc(fs, i))) {
3898 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
3899 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
3900 ctx->invalid_block_bitmap_flag[i]++;
3901 ctx->invalid_bitmaps++;
3904 ext2fs_mark_block_bitmap2(ctx->block_found_map,
3905 ext2fs_block_bitmap_loc(fs, i));
3906 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
3907 ext2fs_block_bitmap_loc(fs, i));
3911 * Mark block used for the inode bitmap
3913 if (ext2fs_inode_bitmap_loc(fs, i)) {
3914 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3915 ext2fs_inode_bitmap_loc(fs, i))) {
3916 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
3917 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
3918 ctx->invalid_inode_bitmap_flag[i]++;
3919 ctx->invalid_bitmaps++;
3922 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
3923 ext2fs_inode_bitmap_loc(fs, i));
3924 ext2fs_mark_block_bitmap2(ctx->block_found_map,
3925 ext2fs_inode_bitmap_loc(fs, i));
3932 * Thes subroutines short circuits ext2fs_get_blocks and
3933 * ext2fs_check_directory; we use them since we already have the inode
3934 * structure, so there's no point in letting the ext2fs library read
3937 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
3940 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3943 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3944 return EXT2_ET_CALLBACK_NOTHANDLED;
3946 for (i=0; i < EXT2_N_BLOCKS; i++)
3947 blocks[i] = ctx->stashed_inode->i_block[i];
3951 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
3952 struct ext2_inode *inode)
3954 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3956 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3957 return EXT2_ET_CALLBACK_NOTHANDLED;
3958 *inode = *ctx->stashed_inode;
3962 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
3963 struct ext2_inode *inode)
3965 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3967 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
3968 (inode != ctx->stashed_inode))
3969 *ctx->stashed_inode = *inode;
3970 return EXT2_ET_CALLBACK_NOTHANDLED;
3973 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
3975 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3977 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3978 return EXT2_ET_CALLBACK_NOTHANDLED;
3980 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
3981 return EXT2_ET_NO_DIRECTORY;
3985 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
3988 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3992 if (ctx->block_found_map) {
3993 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
3997 if (fs->block_map) {
3998 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
3999 ext2fs_mark_bb_dirty(fs);
4002 if (!fs->block_map) {
4003 retval = ext2fs_read_block_bitmap(fs);
4008 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
4017 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
4018 blk64_t len, blk64_t *pblk, blk64_t *plen)
4020 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4023 if (ctx->block_found_map)
4024 return ext2fs_new_range(fs, flags, goal, len,
4025 ctx->block_found_map, pblk, plen);
4027 if (!fs->block_map) {
4028 retval = ext2fs_read_block_bitmap(fs);
4033 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
4037 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
4039 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4041 /* Never free a critical metadata block */
4042 if (ctx->block_found_map &&
4043 ctx->block_metadata_map &&
4045 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
4048 if (ctx->block_found_map) {
4050 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4052 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
4056 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
4057 blk_t num, int inuse)
4059 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4061 /* Never free a critical metadata block */
4062 if (ctx->block_found_map &&
4063 ctx->block_metadata_map &&
4065 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
4068 if (ctx->block_found_map) {
4070 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
4073 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
4078 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
4080 ext2_filsys fs = ctx->fs;
4082 if (use_shortcuts) {
4083 fs->get_blocks = pass1_get_blocks;
4084 fs->check_directory = pass1_check_directory;
4085 fs->read_inode = pass1_read_inode;
4086 fs->write_inode = pass1_write_inode;
4087 ctx->stashed_ino = 0;
4090 fs->check_directory = 0;
4092 fs->write_inode = 0;
4096 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
4098 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
4099 ext2fs_set_block_alloc_stats_callback(ctx->fs,
4100 e2fsck_block_alloc_stats, 0);
4101 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
4102 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
4103 e2fsck_block_alloc_stats_range, NULL);