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. (Although 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,
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 & (1U << 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 inode->i_extra_isize & 3)) {
493 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
495 if (inode->i_extra_isize < min || inode->i_extra_isize > max)
496 inode->i_extra_isize = sb->s_want_extra_isize;
498 inode->i_extra_isize = (inode->i_extra_isize + 3) & ~3;
499 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
500 EXT2_INODE_SIZE(sb), "pass1");
504 /* check if there is no place for an EA header */
505 if (inode->i_extra_isize >= max - sizeof(__u32))
508 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
509 inode->i_extra_isize);
510 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
511 /* it seems inode has an extended attribute(s) in body */
512 check_ea_in_inode(ctx, pctx);
516 * If the inode's extended atime (ctime, crtime, mtime) is stored in
517 * the old, invalid format, repair it.
519 if (((sizeof(time_t) <= 4) ||
520 (((sizeof(time_t) > 4) &&
521 ctx->now < EXT4_EXTRA_NEGATIVE_DATE_CUTOFF))) &&
522 (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime) ||
523 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime) ||
524 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime) ||
525 CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))) {
527 if (!fix_problem(ctx, PR_1_EA_TIME_OUT_OF_RANGE, pctx))
530 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, atime))
531 inode->i_atime_extra &= ~EXT4_EPOCH_MASK;
532 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, ctime))
533 inode->i_ctime_extra &= ~EXT4_EPOCH_MASK;
534 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, crtime))
535 inode->i_crtime_extra &= ~EXT4_EPOCH_MASK;
536 if (CHECK_INODE_EXTRA_NEGATIVE_EPOCH(inode, mtime))
537 inode->i_mtime_extra &= ~EXT4_EPOCH_MASK;
538 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
539 EXT2_INODE_SIZE(sb), "pass1");
545 * Check to see if the inode might really be a directory, despite i_mode
547 * This is a lot of complexity for something for which I'm not really
548 * convinced happens frequently in the wild. If for any reason this
549 * causes any problems, take this code out.
550 * [tytso:20070331.0827EDT]
552 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
555 struct ext2_inode *inode = pctx->inode;
556 struct ext2_dir_entry *dirent;
559 unsigned int i, rec_len, not_device = 0;
564 * If the mode looks OK, we believe it. If the first block in
565 * the i_block array is 0, this cannot be a directory. If the
566 * inode is extent-mapped, it is still the case that the latter
567 * cannot be 0 - the magic number in the extent header would make
570 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
571 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
575 * Check the block numbers in the i_block array for validity:
576 * zero blocks are skipped (but the first one cannot be zero -
577 * see above), other blocks are checked against the first and
578 * max data blocks (from the the superblock) and against the
579 * block bitmap. Any invalid block found means this cannot be
582 * If there are non-zero blocks past the fourth entry, then
583 * this cannot be a device file: we remember that for the next
586 * For extent mapped files, we don't do any sanity checking:
587 * just try to get the phys block of logical block 0 and run
590 * For inline data files, we just try to get the size of inline
591 * data. If it's true, we will treat it as a directory.
594 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
595 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
596 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) {
599 unsigned int rec_len2;
600 struct ext2_dir_entry de;
602 if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size))
605 * If the size isn't a multiple of 4, it's probably not a
611 * If the first 10 bytes don't look like a directory entry,
612 * it's probably not a directory.
614 memcpy(&dotdot, inode->i_block, sizeof(dotdot));
615 memcpy(&de, ((char *)inode->i_block) + EXT4_INLINE_DATA_DOTDOT_SIZE,
616 EXT2_DIR_REC_LEN(0));
617 dotdot = ext2fs_le32_to_cpu(dotdot);
618 de.inode = ext2fs_le32_to_cpu(de.inode);
619 de.rec_len = ext2fs_le16_to_cpu(de.rec_len);
620 ext2fs_get_rec_len(ctx->fs, &de, &rec_len2);
621 if (dotdot >= ctx->fs->super->s_inodes_count ||
622 (dotdot < EXT2_FIRST_INO(ctx->fs->super) &&
623 dotdot != EXT2_ROOT_INO) ||
624 de.inode >= ctx->fs->super->s_inodes_count ||
625 (de.inode < EXT2_FIRST_INO(ctx->fs->super) &&
627 rec_len2 > EXT4_MIN_INLINE_DATA_SIZE -
628 EXT4_INLINE_DATA_DOTDOT_SIZE)
630 /* device files never have a "system.data" entry */
632 } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
634 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
637 /* device files are never extent mapped */
640 for (i=0; i < EXT2_N_BLOCKS; i++) {
641 blk = inode->i_block[i];
647 if (blk < ctx->fs->super->s_first_data_block ||
648 blk >= ext2fs_blocks_count(ctx->fs->super) ||
649 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
651 return; /* Invalid block, can't be dir */
653 blk = inode->i_block[0];
657 * If the mode says this is a device file and the i_links_count field
658 * is sane and we have not ruled it out as a device file previously,
659 * we declare it a device file, not a directory.
661 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
662 (inode->i_links_count == 1) && !not_device)
665 /* read the first block */
666 ehandler_operation(_("reading directory block"));
667 retval = ext2fs_read_dir_block4(ctx->fs, blk, buf, 0, pctx->ino);
668 ehandler_operation(0);
672 dirent = (struct ext2_dir_entry *) buf;
673 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
676 if ((ext2fs_dirent_name_len(dirent) != 1) ||
677 (dirent->name[0] != '.') ||
678 (dirent->inode != pctx->ino) ||
681 (rec_len >= ctx->fs->blocksize - 12))
684 dirent = (struct ext2_dir_entry *) (buf + rec_len);
685 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
688 if ((ext2fs_dirent_name_len(dirent) != 2) ||
689 (dirent->name[0] != '.') ||
690 (dirent->name[1] != '.') ||
696 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
697 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
698 e2fsck_write_inode_full(ctx, pctx->ino, inode,
699 EXT2_INODE_SIZE(ctx->fs->super),
700 "check_is_really_dir");
704 extern errcode_t e2fsck_setup_icount(e2fsck_t ctx, const char *icount_name,
705 int flags, ext2_icount_t hint,
708 unsigned int threshold;
709 unsigned int save_type;
718 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
720 profile_get_uint(ctx->profile, "scratch_files",
721 "numdirs_threshold", 0, 0, &threshold);
722 profile_get_boolean(ctx->profile, "scratch_files",
723 "icount", 0, 1, &enable);
725 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
727 num_dirs = 1024; /* Guess */
729 if (enable && tdb_dir && !access(tdb_dir, W_OK) &&
730 (!threshold || num_dirs > threshold)) {
731 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir,
736 e2fsck_set_bitmap_type(ctx->fs, EXT2FS_BMAP64_RBTREE, icount_name,
738 if (ctx->options & E2F_OPT_ICOUNT_FULLMAP)
739 flags |= EXT2_ICOUNT_OPT_FULLMAP;
740 retval = ext2fs_create_icount2(ctx->fs, flags, 0, hint, ret);
741 ctx->fs->default_bitmap_type = save_type;
745 static errcode_t recheck_bad_inode_checksum(ext2_filsys fs, ext2_ino_t ino,
747 struct problem_context *pctx)
750 struct ext2_inode_large inode;
753 * Reread inode. If we don't see checksum error, then this inode
754 * has been fixed elsewhere.
756 ctx->stashed_ino = 0;
757 retval = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
759 if (retval && retval != EXT2_ET_INODE_CSUM_INVALID)
765 * Checksum still doesn't match. That implies that the inode passes
766 * all the sanity checks, so maybe the checksum is simply corrupt.
767 * See if the user will go for fixing that.
769 if (!fix_problem(ctx, PR_1_INODE_ONLY_CSUM_INVALID, pctx))
772 retval = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
777 static void reserve_block_for_root_repair(e2fsck_t ctx)
781 ext2_filsys fs = ctx->fs;
783 ctx->root_repair_block = 0;
784 if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
787 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
790 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
791 ctx->root_repair_block = blk;
794 static void reserve_block_for_lnf_repair(e2fsck_t ctx)
798 ext2_filsys fs = ctx->fs;
799 static const char name[] = "lost+found";
802 ctx->lnf_repair_block = 0;
803 if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
806 err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
809 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
810 ctx->lnf_repair_block = blk;
813 static errcode_t get_inline_data_ea_size(ext2_filsys fs, ext2_ino_t ino,
817 struct ext2_xattr_handle *handle;
820 retval = ext2fs_xattrs_open(fs, ino, &handle);
824 retval = ext2fs_xattrs_read(handle);
828 retval = ext2fs_xattr_get(handle, "system.data", &p, sz);
833 (void) ext2fs_xattrs_close(&handle);
837 static void finish_processing_inode(e2fsck_t ctx, ext2_ino_t ino,
838 struct problem_context *pctx,
845 * If the inode failed the checksum and the user didn't
846 * clear the inode, test the checksum again -- if it still
847 * fails, ask the user if the checksum should be corrected.
849 pctx->errcode = recheck_bad_inode_checksum(ctx->fs, ino, ctx, pctx);
851 ctx->flags |= E2F_FLAG_ABORT;
853 #define FINISH_INODE_LOOP(ctx, ino, pctx, failed_csum) \
855 finish_processing_inode((ctx), (ino), (pctx), (failed_csum)); \
856 if ((ctx)->flags & E2F_FLAG_ABORT) \
860 static int could_be_block_map(ext2_filsys fs, struct ext2_inode *inode)
865 for (i = 0; i < EXT2_N_BLOCKS; i++) {
866 x = inode->i_block[i];
867 #ifdef WORDS_BIGENDIAN
868 x = ext2fs_swab32(x);
870 if (x >= ext2fs_blocks_count(fs->super))
878 * Figure out what to do with an inode that has both extents and inline data
879 * inode flags set. Returns -1 if we decide to erase the inode, 0 otherwise.
881 static int fix_inline_data_extents_file(e2fsck_t ctx,
883 struct ext2_inode *inode,
885 struct problem_context *pctx)
887 size_t max_inline_ea_size;
888 ext2_filsys fs = ctx->fs;
891 /* Both feature flags not set? Just run the regular checks */
892 if (!ext2fs_has_feature_extents(fs->super) &&
893 !ext2fs_has_feature_inline_data(fs->super))
896 /* Clear both flags if it's a special file */
897 if (LINUX_S_ISCHR(inode->i_mode) ||
898 LINUX_S_ISBLK(inode->i_mode) ||
899 LINUX_S_ISFIFO(inode->i_mode) ||
900 LINUX_S_ISSOCK(inode->i_mode)) {
901 check_extents_inlinedata(ctx, pctx);
905 /* If it looks like an extent tree, try to clear inlinedata */
906 if (ext2fs_extent_header_verify(inode->i_block,
907 sizeof(inode->i_block)) == 0 &&
908 fix_problem(ctx, PR_1_CLEAR_INLINE_DATA_FOR_EXTENT, pctx)) {
909 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
914 /* If it looks short enough to be inline data, try to clear extents */
915 if (inode_size > EXT2_GOOD_OLD_INODE_SIZE)
916 max_inline_ea_size = inode_size -
917 (EXT2_GOOD_OLD_INODE_SIZE +
918 ((struct ext2_inode_large *)inode)->i_extra_isize);
920 max_inline_ea_size = 0;
921 if (EXT2_I_SIZE(inode) <
922 EXT4_MIN_INLINE_DATA_SIZE + max_inline_ea_size &&
923 fix_problem(ctx, PR_1_CLEAR_EXTENT_FOR_INLINE_DATA, pctx)) {
924 inode->i_flags &= ~EXT4_EXTENTS_FL;
930 * Too big for inline data, but no evidence of extent tree -
931 * maybe it's a block map file? If the mappings all look valid?
933 if (could_be_block_map(fs, inode) &&
934 fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_FLAGS, pctx)) {
935 #ifdef WORDS_BIGENDIAN
938 for (i = 0; i < EXT2_N_BLOCKS; i++)
939 inode->i_block[i] = ext2fs_swab32(inode->i_block[i]);
942 inode->i_flags &= ~(EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL);
947 /* Oh well, just clear the busted inode. */
948 if (fix_problem(ctx, PR_1_CLEAR_EXTENT_INLINE_DATA_INODE, pctx)) {
949 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
955 e2fsck_write_inode(ctx, ino, inode, "pass1");
960 static void pass1_readahead(e2fsck_t ctx, dgrp_t *group, ext2_ino_t *next_ino)
962 ext2_ino_t inodes_in_group = 0, inodes_per_block, inodes_per_buffer;
963 dgrp_t start = *group, grp;
964 blk64_t blocks_to_read = 0;
965 errcode_t err = EXT2_ET_INVALID_ARGUMENT;
967 if (ctx->readahead_kb == 0)
970 /* Keep iterating groups until we have enough to readahead */
971 inodes_per_block = EXT2_INODES_PER_BLOCK(ctx->fs->super);
972 for (grp = start; grp < ctx->fs->group_desc_count; grp++) {
973 if (ext2fs_bg_flags_test(ctx->fs, grp, EXT2_BG_INODE_UNINIT))
975 inodes_in_group = ctx->fs->super->s_inodes_per_group -
976 ext2fs_bg_itable_unused(ctx->fs, grp);
977 blocks_to_read += (inodes_in_group + inodes_per_block - 1) /
979 if (blocks_to_read * ctx->fs->blocksize >
980 ctx->readahead_kb * 1024)
984 err = e2fsck_readahead(ctx->fs, E2FSCK_READA_ITABLE, start,
987 ctx->readahead_kb /= 2;
993 /* Error; disable itable readahead */
994 *group = ctx->fs->group_desc_count;
995 *next_ino = ctx->fs->super->s_inodes_count;
998 * Don't do more readahead until we've reached the first inode
999 * of the last inode scan buffer block for the last group.
1002 inodes_per_buffer = (ctx->inode_buffer_blocks ?
1003 ctx->inode_buffer_blocks :
1004 EXT2_INODE_SCAN_DEFAULT_BUFFER_BLOCKS) *
1005 ctx->fs->blocksize /
1006 EXT2_INODE_SIZE(ctx->fs->super);
1008 *next_ino = inodes_in_group -
1009 (inodes_in_group % inodes_per_buffer) + 1 +
1010 (grp * ctx->fs->super->s_inodes_per_group);
1015 * Check if the passed ino is one of the used superblock quota inodes.
1017 * Before the quota inodes were journaled, older superblock quota inodes
1018 * were just regular files in the filesystem and not reserved inodes. This
1019 * checks if the passed ino is one of the s_*_quota_inum superblock fields,
1020 * which may not always be the same as the EXT4_*_QUOTA_INO fields.
1022 static int quota_inum_is_super(struct ext2_super_block *sb, ext2_ino_t ino)
1024 enum quota_type qtype;
1026 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1027 if (*quota_sb_inump(sb, qtype) == ino)
1034 * Check if the passed ino is one of the reserved quota inodes.
1035 * This checks if the inode number is one of the reserved EXT4_*_QUOTA_INO
1036 * inodes. These inodes may or may not be in use by the quota feature.
1038 static int quota_inum_is_reserved(ext2_filsys fs, ext2_ino_t ino)
1040 enum quota_type qtype;
1042 for (qtype = 0; qtype < MAXQUOTAS; qtype++)
1043 if (quota_type2inum(qtype, fs->super) == ino)
1049 void e2fsck_pass1(e2fsck_t ctx)
1053 ext2_filsys fs = ctx->fs;
1055 struct ext2_inode *inode = NULL;
1056 ext2_inode_scan scan = NULL;
1057 char *block_buf = NULL;
1058 #ifdef RESOURCE_TRACK
1059 struct resource_track rtrack;
1061 unsigned char frag, fsize;
1062 struct problem_context pctx;
1063 struct scan_callback_struct scan_struct;
1064 struct ext2_super_block *sb = ctx->fs->super;
1066 int imagic_fs, extent_fs, inlinedata_fs;
1067 int low_dtime_check = 1;
1068 int inode_size = EXT2_INODE_SIZE(fs->super);
1070 int failed_csum = 0;
1071 ext2_ino_t ino_threshold = 0;
1072 dgrp_t ra_group = 0;
1074 init_resource_track(&rtrack, ctx->fs->io);
1075 clear_problem_context(&pctx);
1077 /* If we can do readahead, figure out how many groups to pull in. */
1078 if (!e2fsck_can_readahead(ctx->fs))
1079 ctx->readahead_kb = 0;
1080 else if (ctx->readahead_kb == ~0ULL)
1081 ctx->readahead_kb = e2fsck_guess_readahead(ctx->fs);
1082 pass1_readahead(ctx, &ra_group, &ino_threshold);
1084 if (!(ctx->options & E2F_OPT_PREEN))
1085 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
1087 if (ext2fs_has_feature_dir_index(fs->super) &&
1088 !(ctx->options & E2F_OPT_NO)) {
1089 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
1090 ctx->dirs_to_hash = 0;
1094 mtrace_print("Pass 1");
1097 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
1099 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
1100 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
1101 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
1102 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
1103 max_sizes = (max_sizes * (1UL << i));
1104 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
1108 imagic_fs = ext2fs_has_feature_imagic_inodes(sb);
1109 extent_fs = ext2fs_has_feature_extents(sb);
1110 inlinedata_fs = ext2fs_has_feature_inline_data(sb);
1113 * Allocate bitmaps structures
1115 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
1116 EXT2FS_BMAP64_RBTREE,
1118 &ctx->inode_used_map);
1121 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1122 ctx->flags |= E2F_FLAG_ABORT;
1125 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1126 _("directory inode map"),
1127 EXT2FS_BMAP64_AUTODIR,
1128 "inode_dir_map", &ctx->inode_dir_map);
1131 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1132 ctx->flags |= E2F_FLAG_ABORT;
1135 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
1136 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
1137 "inode_reg_map", &ctx->inode_reg_map);
1140 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1141 ctx->flags |= E2F_FLAG_ABORT;
1144 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
1145 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
1146 "block_found_map", &ctx->block_found_map);
1149 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1150 ctx->flags |= E2F_FLAG_ABORT;
1153 pctx.errcode = e2fsck_allocate_block_bitmap(fs,
1154 _("metadata block map"), EXT2FS_BMAP64_RBTREE,
1155 "block_metadata_map", &ctx->block_metadata_map);
1158 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1159 ctx->flags |= E2F_FLAG_ABORT;
1162 pctx.errcode = e2fsck_setup_icount(ctx, "inode_link_info", 0, NULL,
1163 &ctx->inode_link_info);
1165 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
1166 ctx->flags |= E2F_FLAG_ABORT;
1169 bufsize = inode_size;
1170 if (bufsize < sizeof(struct ext2_inode_large))
1171 bufsize = sizeof(struct ext2_inode_large);
1172 inode = (struct ext2_inode *)
1173 e2fsck_allocate_memory(ctx, bufsize, "scratch inode");
1175 inodes_to_process = (struct process_inode_block *)
1176 e2fsck_allocate_memory(ctx,
1177 (ctx->process_inode_size *
1178 sizeof(struct process_inode_block)),
1179 "array of inodes to process");
1180 process_inode_count = 0;
1182 pctx.errcode = ext2fs_init_dblist(fs, 0);
1184 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
1185 ctx->flags |= E2F_FLAG_ABORT;
1190 * If the last orphan field is set, clear it, since the pass1
1191 * processing will automatically find and clear the orphans.
1192 * In the future, we may want to try using the last_orphan
1193 * linked list ourselves, but for now, we clear it so that the
1194 * ext3 mount code won't get confused.
1196 if (!(ctx->options & E2F_OPT_READONLY)) {
1197 if (fs->super->s_last_orphan) {
1198 fs->super->s_last_orphan = 0;
1199 ext2fs_mark_super_dirty(fs);
1203 mark_table_blocks(ctx);
1204 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
1205 &ctx->block_found_map);
1207 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
1208 ctx->flags |= E2F_FLAG_ABORT;
1211 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
1212 "block interate buffer");
1213 if (EXT2_INODE_SIZE(fs->super) == EXT2_GOOD_OLD_INODE_SIZE)
1214 e2fsck_use_inode_shortcuts(ctx, 1);
1215 e2fsck_intercept_block_allocations(ctx);
1216 old_op = ehandler_operation(_("opening inode scan"));
1217 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
1219 ehandler_operation(old_op);
1221 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1222 ctx->flags |= E2F_FLAG_ABORT;
1225 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE |
1226 EXT2_SF_WARN_GARBAGE_INODES, 0);
1227 ctx->stashed_inode = inode;
1228 scan_struct.ctx = ctx;
1229 scan_struct.block_buf = block_buf;
1230 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
1231 if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
1232 ctx->fs->group_desc_count)))
1234 if ((fs->super->s_wtime < fs->super->s_inodes_count) ||
1235 (fs->super->s_mtime < fs->super->s_inodes_count) ||
1236 (fs->super->s_mkfs_time &&
1237 fs->super->s_mkfs_time < fs->super->s_inodes_count))
1238 low_dtime_check = 0;
1240 if (ext2fs_has_feature_mmp(fs->super) &&
1241 fs->super->s_mmp_block > fs->super->s_first_data_block &&
1242 fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
1243 ext2fs_mark_block_bitmap2(ctx->block_found_map,
1244 fs->super->s_mmp_block);
1246 /* Set up ctx->lost_and_found if possible */
1247 (void) e2fsck_get_lost_and_found(ctx, 0);
1250 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
1251 if (e2fsck_mmp_update(fs))
1252 fatal_error(ctx, 0);
1254 old_op = ehandler_operation(_("getting next inode from scan"));
1255 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
1257 if (ino > ino_threshold)
1258 pass1_readahead(ctx, &ra_group, &ino_threshold);
1259 ehandler_operation(old_op);
1260 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1262 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
1264 * If badblocks says badblocks is bad, offer to clear
1265 * the list, update the in-core bb list, and restart
1268 if (ino == EXT2_BAD_INO &&
1269 fix_problem(ctx, PR_1_BADBLOCKS_IN_BADBLOCKS,
1273 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1274 ext2fs_badblocks_list_free(ctx->fs->badblocks);
1275 ctx->fs->badblocks = NULL;
1276 err = ext2fs_read_bb_inode(ctx->fs,
1277 &ctx->fs->badblocks);
1279 fix_problem(ctx, PR_1_ISCAN_ERROR,
1281 ctx->flags |= E2F_FLAG_ABORT;
1284 err = ext2fs_inode_scan_goto_blockgroup(scan,
1287 fix_problem(ctx, PR_1_ISCAN_ERROR,
1289 ctx->flags |= E2F_FLAG_ABORT;
1294 if (!ctx->inode_bb_map)
1296 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
1297 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1301 pctx.errcode != EXT2_ET_INODE_CSUM_INVALID &&
1302 pctx.errcode != EXT2_ET_INODE_IS_GARBAGE) {
1303 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
1304 ctx->flags |= E2F_FLAG_ABORT;
1311 ctx->stashed_ino = ino;
1313 /* Clear trashed inode? */
1314 if (pctx.errcode == EXT2_ET_INODE_IS_GARBAGE &&
1315 inode->i_links_count > 0 &&
1316 fix_problem(ctx, PR_1_INODE_IS_GARBAGE, &pctx)) {
1318 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1320 failed_csum = pctx.errcode != 0;
1323 * Check for inodes who might have been part of the
1324 * orphaned list linked list. They should have gotten
1325 * dealt with by now, unless the list had somehow been
1328 * FIXME: In the future, inodes which are still in use
1329 * (and which are therefore) pending truncation should
1330 * be handled specially. Right now we just clear the
1331 * dtime field, and the normal e2fsck handling of
1332 * inodes where i_size and the inode blocks are
1333 * inconsistent is to fix i_size, instead of releasing
1334 * the extra blocks. This won't catch the inodes that
1335 * was at the end of the orphan list, but it's better
1336 * than nothing. The right answer is that there
1337 * shouldn't be any bugs in the orphan list handling. :-)
1339 if (inode->i_dtime && low_dtime_check &&
1340 inode->i_dtime < ctx->fs->super->s_inodes_count) {
1341 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
1342 inode->i_dtime = inode->i_links_count ?
1344 e2fsck_write_inode(ctx, ino, inode,
1350 if (inode->i_links_count) {
1351 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
1352 ino, inode->i_links_count);
1354 pctx.num = inode->i_links_count;
1355 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
1356 ctx->flags |= E2F_FLAG_ABORT;
1359 } else if ((ino >= EXT2_FIRST_INODE(fs->super)) &&
1360 !quota_inum_is_reserved(fs, ino)) {
1361 if (!inode->i_dtime && inode->i_mode) {
1362 if (fix_problem(ctx,
1363 PR_1_ZERO_DTIME, &pctx)) {
1364 inode->i_dtime = ctx->now;
1365 e2fsck_write_inode(ctx, ino, inode,
1370 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1374 /* Conflicting inlinedata/extents inode flags? */
1375 if ((inode->i_flags & EXT4_INLINE_DATA_FL) &&
1376 (inode->i_flags & EXT4_EXTENTS_FL)) {
1377 int res = fix_inline_data_extents_file(ctx, ino, inode,
1381 /* skip FINISH_INODE_LOOP */
1386 /* Test for incorrect inline_data flags settings. */
1387 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
1388 (ino >= EXT2_FIRST_INODE(fs->super))) {
1391 pctx.errcode = ext2fs_inline_data_size(fs, ino, &size);
1392 if (!pctx.errcode && size &&
1393 fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
1394 ext2fs_set_feature_inline_data(sb);
1395 ext2fs_mark_super_dirty(fs);
1397 } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
1398 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1399 /* skip FINISH_INODE_LOOP */
1404 /* Test for inline data flag but no attr */
1405 if ((inode->i_flags & EXT4_INLINE_DATA_FL) && inlinedata_fs &&
1406 (ino >= EXT2_FIRST_INODE(fs->super))) {
1413 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
1414 err = get_inline_data_ea_size(fs, ino, &size);
1415 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
1416 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
1420 /* Everything is awesome... */
1422 case EXT2_ET_BAD_EA_BLOCK_NUM:
1423 case EXT2_ET_BAD_EA_HASH:
1424 case EXT2_ET_BAD_EA_HEADER:
1425 case EXT2_ET_EA_BAD_NAME_LEN:
1426 case EXT2_ET_EA_BAD_VALUE_SIZE:
1427 case EXT2_ET_EA_KEY_NOT_FOUND:
1428 case EXT2_ET_EA_NO_SPACE:
1429 case EXT2_ET_MISSING_EA_FEATURE:
1430 case EXT2_ET_INLINE_DATA_CANT_ITERATE:
1431 case EXT2_ET_INLINE_DATA_NO_BLOCK:
1432 case EXT2_ET_INLINE_DATA_NO_SPACE:
1433 case EXT2_ET_NO_INLINE_DATA:
1434 case EXT2_ET_EXT_ATTR_CSUM_INVALID:
1435 case EXT2_ET_EA_BAD_VALUE_OFFSET:
1436 /* broken EA or no system.data EA; truncate */
1437 if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
1439 err = ext2fs_inode_size_set(fs, inode, 0);
1442 ctx->flags |= E2F_FLAG_ABORT;
1445 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
1446 memset(&inode->i_block, 0,
1447 sizeof(inode->i_block));
1448 e2fsck_write_inode(ctx, ino, inode,
1454 /* Some other kind of non-xattr error? */
1456 ctx->flags |= E2F_FLAG_ABORT;
1462 * Test for incorrect extent flag settings.
1464 * On big-endian machines we must be careful:
1465 * When the inode is read, the i_block array is not swapped
1466 * if the extent flag is set. Therefore if we are testing
1467 * for or fixing a wrongly-set flag, we must potentially
1468 * (un)swap before testing, or after fixing.
1472 * In this case the extents flag was set when read, so
1473 * extent_header_verify is ok. If the inode is cleared,
1474 * no need to swap... so no extra swapping here.
1476 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
1477 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1478 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
1479 if ((ext2fs_extent_header_verify(inode->i_block,
1480 sizeof(inode->i_block)) == 0) &&
1481 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
1482 ext2fs_set_feature_extents(sb);
1483 ext2fs_mark_super_dirty(fs);
1485 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
1487 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
1488 if (ino == EXT2_BAD_INO)
1489 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
1491 /* skip FINISH_INODE_LOOP */
1497 * For big-endian machines:
1498 * If the inode didn't have the extents flag set when it
1499 * was read, then the i_blocks array was swapped. To test
1500 * as an extents header, we must swap it back first.
1501 * IF we then set the extents flag, the entire i_block
1502 * array must be un/re-swapped to make it proper extents data.
1504 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
1505 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
1506 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
1507 (LINUX_S_ISREG(inode->i_mode) ||
1508 LINUX_S_ISDIR(inode->i_mode))) {
1510 #ifdef WORDS_BIGENDIAN
1511 __u32 tmp_block[EXT2_N_BLOCKS];
1513 for (i = 0; i < EXT2_N_BLOCKS; i++)
1514 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
1517 ehp = inode->i_block;
1519 if ((ext2fs_extent_header_verify(ehp,
1520 sizeof(inode->i_block)) == 0) &&
1521 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
1522 inode->i_flags |= EXT4_EXTENTS_FL;
1523 #ifdef WORDS_BIGENDIAN
1524 memcpy(inode->i_block, tmp_block,
1525 sizeof(inode->i_block));
1527 e2fsck_write_inode(ctx, ino, inode, "pass1");
1532 if (ino == EXT2_BAD_INO) {
1533 struct process_block_struct pb;
1535 if ((failed_csum || inode->i_mode || inode->i_uid ||
1536 inode->i_gid || inode->i_links_count ||
1537 (inode->i_flags & EXT4_INLINE_DATA_FL) ||
1538 inode->i_file_acl) &&
1539 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
1540 memset(inode, 0, sizeof(struct ext2_inode));
1541 e2fsck_write_inode(ctx, ino, inode,
1546 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
1547 &pb.fs_meta_blocks);
1550 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
1551 ctx->flags |= E2F_FLAG_ABORT;
1554 pb.ino = EXT2_BAD_INO;
1555 pb.num_blocks = pb.last_block = 0;
1556 pb.last_db_block = -1;
1557 pb.num_illegal_blocks = 0;
1558 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
1559 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
1563 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
1564 block_buf, process_bad_block, &pb);
1565 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
1567 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
1568 ctx->flags |= E2F_FLAG_ABORT;
1572 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
1573 ctx->flags |= E2F_FLAG_ABORT;
1576 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1577 clear_problem_context(&pctx);
1578 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1580 } else if (ino == EXT2_ROOT_INO) {
1582 * Make sure the root inode is a directory; if
1583 * not, offer to clear it. It will be
1584 * regenerated in pass #3.
1586 if (!LINUX_S_ISDIR(inode->i_mode)) {
1587 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
1591 * If dtime is set, offer to clear it. mke2fs
1592 * version 0.2b created filesystems with the
1593 * dtime field set for the root and lost+found
1594 * directories. We won't worry about
1595 * /lost+found, since that can be regenerated
1596 * easily. But we will fix the root directory
1597 * as a special case.
1599 if (inode->i_dtime && inode->i_links_count) {
1600 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
1602 e2fsck_write_inode(ctx, ino, inode,
1607 } else if (ino == EXT2_JOURNAL_INO) {
1608 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1609 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
1610 if (!LINUX_S_ISREG(inode->i_mode) &&
1611 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
1613 inode->i_mode = LINUX_S_IFREG;
1614 e2fsck_write_inode(ctx, ino, inode,
1618 check_blocks(ctx, &pctx, block_buf);
1619 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1622 if ((inode->i_links_count ||
1623 inode->i_blocks || inode->i_block[0]) &&
1624 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
1626 memset(inode, 0, inode_size);
1627 ext2fs_icount_store(ctx->inode_link_info,
1629 e2fsck_write_inode_full(ctx, ino, inode,
1630 inode_size, "pass1");
1633 } else if (quota_inum_is_reserved(fs, ino)) {
1634 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1635 if (ext2fs_has_feature_quota(fs->super) &&
1636 quota_inum_is_super(fs->super, ino)) {
1637 if (!LINUX_S_ISREG(inode->i_mode) &&
1638 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
1640 inode->i_mode = LINUX_S_IFREG;
1641 e2fsck_write_inode(ctx, ino, inode,
1645 check_blocks(ctx, &pctx, block_buf);
1646 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1649 if ((inode->i_links_count ||
1650 inode->i_blocks || inode->i_block[0]) &&
1651 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
1653 memset(inode, 0, inode_size);
1654 ext2fs_icount_store(ctx->inode_link_info,
1656 e2fsck_write_inode_full(ctx, ino, inode,
1657 inode_size, "pass1");
1660 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
1661 problem_t problem = 0;
1663 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1664 if (ino == EXT2_BOOT_LOADER_INO) {
1665 if (LINUX_S_ISDIR(inode->i_mode))
1666 problem = PR_1_RESERVED_BAD_MODE;
1667 } else if (ino == EXT2_RESIZE_INO) {
1668 if (inode->i_mode &&
1669 !LINUX_S_ISREG(inode->i_mode))
1670 problem = PR_1_RESERVED_BAD_MODE;
1672 if (inode->i_mode != 0)
1673 problem = PR_1_RESERVED_BAD_MODE;
1676 if (fix_problem(ctx, problem, &pctx)) {
1678 e2fsck_write_inode(ctx, ino, inode,
1683 check_blocks(ctx, &pctx, block_buf);
1684 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1688 if (!inode->i_links_count) {
1689 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1693 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1694 * deleted files. Oops.
1696 * Since all new ext2 implementations get this right,
1697 * we now assume that the case of non-zero
1698 * i_links_count and non-zero dtime means that we
1699 * should keep the file, not delete it.
1702 if (inode->i_dtime) {
1703 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1705 e2fsck_write_inode(ctx, ino, inode, "pass1");
1710 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1711 switch (fs->super->s_creator_os) {
1713 frag = inode->osd2.hurd2.h_i_frag;
1714 fsize = inode->osd2.hurd2.h_i_fsize;
1720 if (inode->i_faddr || frag || fsize ||
1721 (LINUX_S_ISDIR(inode->i_mode) && inode->i_dir_acl))
1722 mark_inode_bad(ctx, ino);
1723 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1724 !ext2fs_has_feature_64bit(fs->super) &&
1725 inode->osd2.linux2.l_i_file_acl_high != 0)
1726 mark_inode_bad(ctx, ino);
1727 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
1728 !ext2fs_has_feature_huge_file(fs->super) &&
1729 (inode->osd2.linux2.l_i_blocks_hi != 0))
1730 mark_inode_bad(ctx, ino);
1731 if (inode->i_flags & EXT2_IMAGIC_FL) {
1733 if (!ctx->inode_imagic_map)
1734 alloc_imagic_map(ctx);
1735 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1738 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1739 inode->i_flags &= ~EXT2_IMAGIC_FL;
1740 e2fsck_write_inode(ctx, ino,
1747 check_inode_extra_space(ctx, &pctx);
1748 check_is_really_dir(ctx, &pctx, block_buf);
1751 * ext2fs_inode_has_valid_blocks2 does not actually look
1752 * at i_block[] values, so not endian-sensitive here.
1754 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1755 LINUX_S_ISLNK(inode->i_mode) &&
1756 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1757 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1758 inode->i_flags &= ~EXT4_EXTENTS_FL;
1759 e2fsck_write_inode(ctx, ino, inode, "pass1");
1763 if (LINUX_S_ISDIR(inode->i_mode)) {
1764 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1765 e2fsck_add_dir_info(ctx, ino, 0);
1766 ctx->fs_directory_count++;
1767 if (inode->i_flags & EXT4_ENCRYPT_FL)
1768 add_encrypted_dir(ctx, ino);
1769 } else if (LINUX_S_ISREG (inode->i_mode)) {
1770 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1771 ctx->fs_regular_count++;
1772 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1773 e2fsck_pass1_check_device_inode(fs, inode)) {
1774 check_extents_inlinedata(ctx, &pctx);
1775 check_immutable(ctx, &pctx);
1776 check_size(ctx, &pctx);
1777 ctx->fs_chardev_count++;
1778 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1779 e2fsck_pass1_check_device_inode(fs, inode)) {
1780 check_extents_inlinedata(ctx, &pctx);
1781 check_immutable(ctx, &pctx);
1782 check_size(ctx, &pctx);
1783 ctx->fs_blockdev_count++;
1784 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1785 e2fsck_pass1_check_symlink(fs, ino, inode,
1787 check_immutable(ctx, &pctx);
1788 ctx->fs_symlinks_count++;
1789 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
1790 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1792 } else if (ext2fs_inode_data_blocks(fs, inode) == 0) {
1793 ctx->fs_fast_symlinks_count++;
1794 check_blocks(ctx, &pctx, block_buf);
1795 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1799 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1800 e2fsck_pass1_check_device_inode(fs, inode)) {
1801 check_extents_inlinedata(ctx, &pctx);
1802 check_immutable(ctx, &pctx);
1803 check_size(ctx, &pctx);
1804 ctx->fs_fifo_count++;
1805 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1806 e2fsck_pass1_check_device_inode(fs, inode)) {
1807 check_extents_inlinedata(ctx, &pctx);
1808 check_immutable(ctx, &pctx);
1809 check_size(ctx, &pctx);
1810 ctx->fs_sockets_count++;
1812 mark_inode_bad(ctx, ino);
1813 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1814 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
1815 if (inode->i_block[EXT2_IND_BLOCK])
1816 ctx->fs_ind_count++;
1817 if (inode->i_block[EXT2_DIND_BLOCK])
1818 ctx->fs_dind_count++;
1819 if (inode->i_block[EXT2_TIND_BLOCK])
1820 ctx->fs_tind_count++;
1822 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1823 !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
1824 (inode->i_block[EXT2_IND_BLOCK] ||
1825 inode->i_block[EXT2_DIND_BLOCK] ||
1826 inode->i_block[EXT2_TIND_BLOCK] ||
1827 ext2fs_file_acl_block(fs, inode))) {
1828 struct ext2_inode_large *ip;
1830 inodes_to_process[process_inode_count].ino = ino;
1831 ip = &inodes_to_process[process_inode_count].inode;
1832 if (inode_size < sizeof(struct ext2_inode_large))
1833 memcpy(ip, inode, inode_size);
1835 memcpy(ip, inode, sizeof(*ip));
1836 process_inode_count++;
1838 check_blocks(ctx, &pctx, block_buf);
1840 FINISH_INODE_LOOP(ctx, ino, &pctx, failed_csum);
1842 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1845 if (process_inode_count >= ctx->process_inode_size) {
1846 process_inodes(ctx, block_buf);
1848 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1852 process_inodes(ctx, block_buf);
1853 ext2fs_close_inode_scan(scan);
1856 reserve_block_for_root_repair(ctx);
1857 reserve_block_for_lnf_repair(ctx);
1860 * If any extended attribute blocks' reference counts need to
1861 * be adjusted, either up (ctx->refcount_extra), or down
1862 * (ctx->refcount), then fix them.
1864 if (ctx->refcount) {
1865 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1866 ea_refcount_free(ctx->refcount);
1869 if (ctx->refcount_extra) {
1870 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1872 ea_refcount_free(ctx->refcount_extra);
1873 ctx->refcount_extra = 0;
1876 if (ctx->invalid_bitmaps)
1877 handle_fs_bad_blocks(ctx);
1879 /* We don't need the block_ea_map any more */
1880 if (ctx->block_ea_map) {
1881 ext2fs_free_block_bitmap(ctx->block_ea_map);
1882 ctx->block_ea_map = 0;
1885 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
1886 clear_problem_context(&pctx);
1887 pctx.errcode = ext2fs_create_resize_inode(fs);
1889 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
1891 ctx->flags |= E2F_FLAG_ABORT;
1896 if (!pctx.errcode) {
1897 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
1899 inode->i_mtime = ctx->now;
1900 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
1903 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
1906 if (ctx->flags & E2F_FLAG_RESTART) {
1908 * Only the master copy of the superblock and block
1909 * group descriptors are going to be written during a
1910 * restart, so set the superblock to be used to be the
1911 * master superblock.
1913 ctx->use_superblock = 0;
1918 if (ctx->block_dup_map) {
1919 if (ctx->options & E2F_OPT_PREEN) {
1920 clear_problem_context(&pctx);
1921 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
1923 e2fsck_pass1_dupblocks(ctx, block_buf);
1925 ctx->flags |= E2F_FLAG_ALLOC_OK;
1926 ext2fs_free_mem(&inodes_to_process);
1928 e2fsck_use_inode_shortcuts(ctx, 0);
1931 ext2fs_close_inode_scan(scan);
1933 ext2fs_free_mem(&block_buf);
1935 ext2fs_free_mem(&inode);
1938 * The l+f inode may have been cleared, so zap it now and
1939 * later passes will recalculate it if necessary
1941 ctx->lost_and_found = 0;
1943 if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
1944 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
1946 ctx->invalid_bitmaps++;
1948 #undef FINISH_INODE_LOOP
1951 * When the inode_scan routines call this callback at the end of the
1952 * glock group, call process_inodes.
1954 static errcode_t scan_callback(ext2_filsys fs,
1955 ext2_inode_scan scan EXT2FS_ATTR((unused)),
1956 dgrp_t group, void * priv_data)
1958 struct scan_callback_struct *scan_struct;
1961 scan_struct = (struct scan_callback_struct *) priv_data;
1962 ctx = scan_struct->ctx;
1964 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
1967 if ((ctx->progress)(ctx, 1, group+1,
1968 ctx->fs->group_desc_count))
1969 return EXT2_ET_CANCEL_REQUESTED;
1975 * Process the inodes in the "inodes to process" list.
1977 static void process_inodes(e2fsck_t ctx, char *block_buf)
1980 struct ext2_inode *old_stashed_inode;
1981 ext2_ino_t old_stashed_ino;
1982 const char *old_operation;
1984 struct problem_context pctx;
1987 printf("begin process_inodes: ");
1989 if (process_inode_count == 0)
1991 old_operation = ehandler_operation(0);
1992 old_stashed_inode = ctx->stashed_inode;
1993 old_stashed_ino = ctx->stashed_ino;
1994 qsort(inodes_to_process, process_inode_count,
1995 sizeof(struct process_inode_block), process_inode_cmp);
1996 clear_problem_context(&pctx);
1997 for (i=0; i < process_inode_count; i++) {
1998 pctx.inode = ctx->stashed_inode =
1999 (struct ext2_inode *) &inodes_to_process[i].inode;
2000 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
2003 printf("%u ", pctx.ino);
2005 sprintf(buf, _("reading indirect blocks of inode %u"),
2007 ehandler_operation(buf);
2008 check_blocks(ctx, &pctx, block_buf);
2009 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2012 ctx->stashed_inode = old_stashed_inode;
2013 ctx->stashed_ino = old_stashed_ino;
2014 process_inode_count = 0;
2016 printf("end process inodes\n");
2018 ehandler_operation(old_operation);
2021 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
2023 const struct process_inode_block *ib_a =
2024 (const struct process_inode_block *) a;
2025 const struct process_inode_block *ib_b =
2026 (const struct process_inode_block *) b;
2029 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
2030 ib_b->inode.i_block[EXT2_IND_BLOCK]);
2033 * We only call process_inodes() for non-extent
2034 * inodes, so it's OK to pass NULL to
2035 * ext2fs_file_acl_block() here.
2037 ret = ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_a->inode)) -
2038 ext2fs_file_acl_block(0, ext2fs_const_inode(&ib_b->inode));
2040 ret = ib_a->ino - ib_b->ino;
2045 * Mark an inode as being bad in some what
2047 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
2049 struct problem_context pctx;
2051 if (!ctx->inode_bad_map) {
2052 clear_problem_context(&pctx);
2054 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2055 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
2056 "inode_bad_map", &ctx->inode_bad_map);
2059 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2060 /* Should never get here */
2061 ctx->flags |= E2F_FLAG_ABORT;
2065 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
2068 static void add_encrypted_dir(e2fsck_t ctx, ino_t ino)
2070 struct problem_context pctx;
2072 if (!ctx->encrypted_dirs) {
2073 pctx.errcode = ext2fs_u32_list_create(&ctx->encrypted_dirs, 0);
2077 pctx.errcode = ext2fs_u32_list_add(ctx->encrypted_dirs, ino);
2078 if (pctx.errcode == 0)
2081 fix_problem(ctx, PR_1_ALLOCATE_ENCRYPTED_DIRLIST, &pctx);
2082 /* Should never get here */
2083 ctx->flags |= E2F_FLAG_ABORT;
2087 * This procedure will allocate the inode "bb" (badblock) map table
2089 static void alloc_bb_map(e2fsck_t ctx)
2091 struct problem_context pctx;
2093 clear_problem_context(&pctx);
2094 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2095 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
2096 "inode_bb_map", &ctx->inode_bb_map);
2099 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2100 /* Should never get here */
2101 ctx->flags |= E2F_FLAG_ABORT;
2107 * This procedure will allocate the inode imagic table
2109 static void alloc_imagic_map(e2fsck_t ctx)
2111 struct problem_context pctx;
2113 clear_problem_context(&pctx);
2114 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
2115 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
2116 "inode_imagic_map", &ctx->inode_imagic_map);
2119 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
2120 /* Should never get here */
2121 ctx->flags |= E2F_FLAG_ABORT;
2127 * Marks a block as in use, setting the dup_map if it's been set
2128 * already. Called by process_block and process_bad_block.
2130 * WARNING: Assumes checks have already been done to make sure block
2131 * is valid. This is true in both process_block and process_bad_block.
2133 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
2135 struct problem_context pctx;
2137 clear_problem_context(&pctx);
2139 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
2140 if (!ctx->block_dup_map) {
2141 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
2142 _("multiply claimed block map"),
2143 EXT2FS_BMAP64_RBTREE, "block_dup_map",
2144 &ctx->block_dup_map);
2147 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
2149 /* Should never get here */
2150 ctx->flags |= E2F_FLAG_ABORT;
2154 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
2156 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
2160 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
2163 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
2164 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
2167 mark_block_used(ctx, block++);
2171 * Adjust the extended attribute block's reference counts at the end
2172 * of pass 1, either by subtracting out references for EA blocks that
2173 * are still referenced in ctx->refcount, or by adding references for
2174 * EA blocks that had extra references as accounted for in
2175 * ctx->refcount_extra.
2177 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
2178 char *block_buf, int adjust_sign)
2180 struct ext2_ext_attr_header *header;
2181 struct problem_context pctx;
2182 ext2_filsys fs = ctx->fs;
2187 clear_problem_context(&pctx);
2189 ea_refcount_intr_begin(refcount);
2191 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
2194 pctx.errcode = ext2fs_read_ext_attr3(fs, blk, block_buf,
2197 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
2200 header = (struct ext2_ext_attr_header *) block_buf;
2201 pctx.blkcount = header->h_refcount;
2202 should_be = header->h_refcount + adjust_sign * count;
2203 pctx.num = should_be;
2204 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
2205 header->h_refcount = should_be;
2206 pctx.errcode = ext2fs_write_ext_attr3(fs, blk,
2210 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
2219 * Handle processing the extended attribute blocks
2221 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
2224 ext2_filsys fs = ctx->fs;
2225 ext2_ino_t ino = pctx->ino;
2226 struct ext2_inode *inode = pctx->inode;
2229 struct ext2_ext_attr_header *header;
2230 struct ext2_ext_attr_entry *entry;
2232 region_t region = 0;
2233 int failed_csum = 0;
2235 blk = ext2fs_file_acl_block(fs, inode);
2240 * If the Extended attribute flag isn't set, then a non-zero
2241 * file acl means that the inode is corrupted.
2243 * Or if the extended attribute block is an invalid block,
2244 * then the inode is also corrupted.
2246 if (!ext2fs_has_feature_xattr(fs->super) ||
2247 (blk < fs->super->s_first_data_block) ||
2248 (blk >= ext2fs_blocks_count(fs->super))) {
2249 mark_inode_bad(ctx, ino);
2253 /* If ea bitmap hasn't been allocated, create it */
2254 if (!ctx->block_ea_map) {
2255 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
2256 _("ext attr block map"),
2257 EXT2FS_BMAP64_RBTREE, "block_ea_map",
2258 &ctx->block_ea_map);
2259 if (pctx->errcode) {
2261 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
2262 ctx->flags |= E2F_FLAG_ABORT;
2267 /* Create the EA refcount structure if necessary */
2268 if (!ctx->refcount) {
2269 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
2270 if (pctx->errcode) {
2272 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2273 ctx->flags |= E2F_FLAG_ABORT;
2279 /* Debugging text */
2280 printf("Inode %u has EA block %u\n", ino, blk);
2283 /* Have we seen this EA block before? */
2284 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
2285 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
2287 /* Ooops, this EA was referenced more than it stated */
2288 if (!ctx->refcount_extra) {
2289 pctx->errcode = ea_refcount_create(0,
2290 &ctx->refcount_extra);
2291 if (pctx->errcode) {
2293 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
2294 ctx->flags |= E2F_FLAG_ABORT;
2298 ea_refcount_increment(ctx->refcount_extra, blk, 0);
2303 * OK, we haven't seen this EA block yet. So we need to
2307 pctx->errcode = ext2fs_read_ext_attr3(fs, blk, block_buf, pctx->ino);
2308 if (pctx->errcode == EXT2_ET_EXT_ATTR_CSUM_INVALID) {
2311 } else if (pctx->errcode == EXT2_ET_BAD_EA_HEADER)
2314 if (pctx->errcode &&
2315 fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx)) {
2319 header = (struct ext2_ext_attr_header *) block_buf;
2320 pctx->blk = ext2fs_file_acl_block(fs, inode);
2321 if (((ctx->ext_attr_ver == 1) &&
2322 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
2323 ((ctx->ext_attr_ver == 2) &&
2324 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
2325 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
2329 if (header->h_blocks != 1) {
2330 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
2334 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
2337 region = region_create(0, fs->blocksize);
2339 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
2340 ctx->flags |= E2F_FLAG_ABORT;
2343 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
2344 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2348 entry = (struct ext2_ext_attr_entry *)(header+1);
2349 end = block_buf + fs->blocksize;
2350 while ((char *)entry < end && *(__u32 *)entry) {
2353 if (region_allocate(region, (char *)entry - (char *)header,
2354 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
2355 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2359 if ((ctx->ext_attr_ver == 1 &&
2360 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
2361 (ctx->ext_attr_ver == 2 &&
2362 entry->e_name_index == 0)) {
2363 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
2367 if (entry->e_value_block != 0) {
2368 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2371 if (entry->e_value_offs + entry->e_value_size > fs->blocksize) {
2372 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
2376 if (entry->e_value_size &&
2377 region_allocate(region, entry->e_value_offs,
2378 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
2379 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2383 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
2384 entry->e_value_offs);
2386 if (entry->e_hash != hash) {
2387 pctx->num = entry->e_hash;
2388 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
2390 entry->e_hash = hash;
2393 entry = EXT2_EXT_ATTR_NEXT(entry);
2395 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
2396 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
2399 region_free(region);
2402 * We only get here if there was no other errors that were fixed.
2403 * If there was a checksum fail, ask to correct it.
2406 fix_problem(ctx, PR_1_EA_BLOCK_ONLY_CSUM_INVALID, pctx)) {
2407 pctx->errcode = ext2fs_write_ext_attr3(fs, blk, block_buf,
2413 count = header->h_refcount - 1;
2415 ea_refcount_store(ctx->refcount, blk, count);
2416 mark_block_used(ctx, blk);
2417 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
2422 region_free(region);
2423 ext2fs_file_acl_block_set(fs, inode, 0);
2424 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
2428 /* Returns 1 if bad htree, 0 if OK */
2429 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
2430 ext2_ino_t ino, struct ext2_inode *inode,
2433 struct ext2_dx_root_info *root;
2434 ext2_filsys fs = ctx->fs;
2438 if ((!LINUX_S_ISDIR(inode->i_mode) &&
2439 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
2440 (!ext2fs_has_feature_dir_index(fs->super) &&
2441 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
2444 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
2446 if ((pctx->errcode) ||
2448 (blk < fs->super->s_first_data_block) ||
2449 (blk >= ext2fs_blocks_count(fs->super))) {
2450 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2456 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
2457 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2460 /* XXX should check that beginning matches a directory */
2461 root = (struct ext2_dx_root_info *) (block_buf + 24);
2463 if ((root->reserved_zero || root->info_length < 8) &&
2464 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
2467 pctx->num = root->hash_version;
2468 if ((root->hash_version != EXT2_HASH_LEGACY) &&
2469 (root->hash_version != EXT2_HASH_HALF_MD4) &&
2470 (root->hash_version != EXT2_HASH_TEA) &&
2471 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
2474 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
2475 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
2478 pctx->num = root->indirect_levels;
2479 if ((root->indirect_levels > 1) &&
2480 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
2486 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
2487 struct ext2_inode *inode, int restart_flag,
2491 inode->i_links_count = 0;
2492 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
2493 inode->i_dtime = ctx->now;
2496 * If a special inode has such rotten block mappings that we
2497 * want to clear the whole inode, be sure to actually zap
2498 * the block maps because i_links_count isn't checked for
2499 * special inodes, and we'll end up right back here the next
2502 if (ino < EXT2_FIRST_INODE(ctx->fs->super))
2503 memset(inode->i_block, 0, sizeof(inode->i_block));
2505 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
2506 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
2507 if (ctx->inode_reg_map)
2508 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
2509 if (ctx->inode_bad_map)
2510 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
2513 * If the inode was partially accounted for before processing
2514 * was aborted, we need to restart the pass 1 scan.
2516 ctx->flags |= restart_flag;
2518 if (ino == EXT2_BAD_INO)
2519 memset(inode, 0, sizeof(struct ext2_inode));
2521 e2fsck_write_inode(ctx, ino, inode, source);
2525 * Use the multiple-blocks reclamation code to fix alignment problems in
2526 * a bigalloc filesystem. We want a logical cluster to map to *only* one
2527 * physical cluster, and we want the block offsets within that cluster to
2530 static int has_unaligned_cluster_map(e2fsck_t ctx,
2531 blk64_t last_pblk, blk64_t last_lblk,
2532 blk64_t pblk, blk64_t lblk)
2534 blk64_t cluster_mask;
2536 if (!ctx->fs->cluster_ratio_bits)
2538 cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
2541 * If the block in the logical cluster doesn't align with the block in
2542 * the physical cluster...
2544 if ((lblk & cluster_mask) != (pblk & cluster_mask))
2548 * If we cross a physical cluster boundary within a logical cluster...
2550 if (last_pblk && (lblk & cluster_mask) != 0 &&
2551 EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
2552 EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
2558 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
2559 struct process_block_struct *pb,
2560 blk64_t start_block, blk64_t end_block,
2562 ext2_extent_handle_t ehandle,
2565 struct ext2fs_extent extent;
2566 blk64_t blk, last_lblk;
2567 e2_blkcnt_t blockcnt;
2569 int is_dir, is_leaf;
2571 struct ext2_extent_info info;
2572 int failed_csum = 0;
2574 if (pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID)
2577 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
2580 if (!(ctx->options & E2F_OPT_FIXES_ONLY) &&
2581 !pb->eti.force_rebuild) {
2582 struct extent_tree_level *etl;
2584 etl = pb->eti.ext_info + info.curr_level;
2585 etl->num_extents += info.num_entries;
2586 etl->max_extents += info.max_entries;
2588 * Implementation wart: Splitting extent blocks when appending
2589 * will leave the old block with one free entry. Therefore
2590 * unless the node is totally full, pretend that a non-root
2591 * extent block can hold one fewer entry than it actually does,
2592 * so that we don't repeatedly rebuild the extent tree.
2594 if (info.curr_level && info.num_entries < info.max_entries)
2598 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
2600 while ((pctx->errcode == 0 ||
2601 pctx->errcode == EXT2_ET_EXTENT_CSUM_INVALID) &&
2602 info.num_entries-- > 0) {
2603 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
2604 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
2605 last_lblk = extent.e_lblk + extent.e_len - 1;
2608 pctx->blk = extent.e_pblk;
2609 pctx->blk2 = extent.e_lblk;
2610 pctx->num = extent.e_len;
2611 pctx->blkcount = extent.e_lblk + extent.e_len;
2613 if (extent.e_pblk == 0 ||
2614 extent.e_pblk < ctx->fs->super->s_first_data_block ||
2615 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
2616 problem = PR_1_EXTENT_BAD_START_BLK;
2617 else if (extent.e_lblk < start_block)
2618 problem = PR_1_OUT_OF_ORDER_EXTENTS;
2619 else if ((end_block && last_lblk > end_block) &&
2620 (!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT &&
2621 last_lblk > eof_block)))
2622 problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
2623 else if (is_leaf && extent.e_len == 0)
2624 problem = PR_1_EXTENT_LENGTH_ZERO;
2626 (extent.e_pblk + extent.e_len) >
2627 ext2fs_blocks_count(ctx->fs->super))
2628 problem = PR_1_EXTENT_ENDS_BEYOND;
2629 else if (is_leaf && is_dir &&
2630 ((extent.e_lblk + extent.e_len) >
2631 (1U << (21 - ctx->fs->super->s_log_block_size))))
2632 problem = PR_1_TOOBIG_DIR;
2634 if (is_leaf && problem == 0 && extent.e_len > 0) {
2636 printf("extent_region(ino=%u, expect=%llu, "
2637 "lblk=%llu, len=%u)\n",
2638 pb->ino, pb->next_lblock,
2639 extent.e_lblk, extent.e_len);
2641 if (extent.e_lblk < pb->next_lblock)
2642 problem = PR_1_EXTENT_COLLISION;
2643 else if (extent.e_lblk + extent.e_len > pb->next_lblock)
2644 pb->next_lblock = extent.e_lblk + extent.e_len;
2648 * Uninitialized blocks in a directory? Clear the flag and
2649 * we'll interpret the blocks later.
2651 if (try_repairs && is_dir && problem == 0 &&
2652 (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
2653 fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
2654 extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
2655 pb->inode_modified = 1;
2656 pctx->errcode = ext2fs_extent_replace(ehandle, 0,
2663 if (try_repairs && problem) {
2665 if (fix_problem(ctx, problem, pctx)) {
2666 if (ctx->invalid_bitmaps) {
2668 * If fsck knows the bitmaps are bad,
2669 * skip to the next extent and
2670 * try to clear this extent again
2671 * after fixing the bitmaps, by
2674 pctx->errcode = ext2fs_extent_get(
2676 EXT2_EXTENT_NEXT_SIB,
2678 ctx->flags |= E2F_FLAG_RESTART_LATER;
2679 if (pctx->errcode ==
2680 EXT2_ET_NO_CURRENT_NODE) {
2686 e2fsck_read_bitmaps(ctx);
2687 pb->inode_modified = 1;
2689 ext2fs_extent_delete(ehandle, 0);
2690 if (pctx->errcode) {
2691 pctx->str = "ext2fs_extent_delete";
2694 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2695 if (pctx->errcode &&
2696 pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
2697 pctx->str = "ext2fs_extent_fix_parents";
2700 pctx->errcode = ext2fs_extent_get(ehandle,
2701 EXT2_EXTENT_CURRENT,
2703 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
2714 blk64_t lblk = extent.e_lblk;
2715 int next_try_repairs = 1;
2717 blk = extent.e_pblk;
2720 * If this lower extent block collides with critical
2721 * metadata, don't try to repair the damage. Pass 1b
2722 * will reallocate the block; then we can try again.
2724 if (pb->ino != EXT2_RESIZE_INO &&
2725 extent.e_pblk < ctx->fs->super->s_blocks_count &&
2726 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
2728 next_try_repairs = 0;
2731 PR_1_CRITICAL_METADATA_COLLISION,
2733 if ((ctx->options & E2F_OPT_NO) == 0)
2734 ctx->flags |= E2F_FLAG_RESTART_LATER;
2736 pctx->errcode = ext2fs_extent_get(ehandle,
2737 EXT2_EXTENT_DOWN, &extent);
2738 if (pctx->errcode &&
2739 pctx->errcode != EXT2_ET_EXTENT_CSUM_INVALID) {
2740 pctx->str = "EXT2_EXTENT_DOWN";
2741 problem = PR_1_EXTENT_HEADER_INVALID;
2742 if (!next_try_repairs)
2744 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
2745 goto report_problem;
2748 /* The next extent should match this index's logical start */
2749 if (extent.e_lblk != lblk) {
2750 struct ext2_extent_info e_info;
2752 ext2fs_extent_get_info(ehandle, &e_info);
2754 pctx->blk2 = extent.e_lblk;
2755 pctx->num = e_info.curr_level - 1;
2756 problem = PR_1_EXTENT_INDEX_START_INVALID;
2757 if (fix_problem(ctx, problem, pctx)) {
2758 pb->inode_modified = 1;
2760 ext2fs_extent_fix_parents(ehandle);
2761 if (pctx->errcode) {
2762 pctx->str = "ext2fs_extent_fix_parents";
2767 scan_extent_node(ctx, pctx, pb, extent.e_lblk,
2768 last_lblk, eof_block, ehandle,
2772 pctx->errcode = ext2fs_extent_get(ehandle,
2773 EXT2_EXTENT_UP, &extent);
2774 if (pctx->errcode) {
2775 pctx->str = "EXT2_EXTENT_UP";
2778 mark_block_used(ctx, blk);
2783 if ((pb->previous_block != 0) &&
2784 (pb->previous_block+1 != extent.e_pblk)) {
2785 if (ctx->options & E2F_OPT_FRAGCHECK) {
2790 else if (pb->is_reg)
2793 printf(("%6lu(%c): expecting %6lu "
2795 "phys %6lu log %lu len %lu\n"),
2796 (unsigned long) pctx->ino, type,
2797 (unsigned long) pb->previous_block+1,
2798 (unsigned long) extent.e_pblk,
2799 (unsigned long) extent.e_lblk,
2800 (unsigned long) extent.e_len);
2805 * If we notice a gap in the logical block mappings of an
2806 * extent-mapped directory, offer to close the hole by
2807 * moving the logical block down, otherwise we'll go mad in
2808 * pass 3 allocating empty directory blocks to fill the hole.
2810 if (try_repairs && is_dir &&
2811 pb->last_block + 1 < extent.e_lblk) {
2814 new_lblk = pb->last_block + 1;
2815 if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
2816 new_lblk = ((new_lblk +
2817 EXT2FS_CLUSTER_RATIO(ctx->fs) - 1) &
2818 ~EXT2FS_CLUSTER_MASK(ctx->fs)) |
2820 EXT2FS_CLUSTER_MASK(ctx->fs));
2821 pctx->blk = extent.e_lblk;
2822 pctx->blk2 = new_lblk;
2823 if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
2824 extent.e_lblk = new_lblk;
2825 pb->inode_modified = 1;
2826 pctx->errcode = ext2fs_extent_replace(ehandle,
2828 if (pctx->errcode) {
2832 pctx->errcode = ext2fs_extent_fix_parents(ehandle);
2834 goto failed_add_dir_block;
2835 pctx->errcode = ext2fs_extent_goto(ehandle,
2838 goto failed_add_dir_block;
2839 last_lblk = extent.e_lblk + extent.e_len - 1;
2844 while (is_dir && (++pb->last_db_block <
2845 (e2_blkcnt_t) extent.e_lblk)) {
2846 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist,
2849 if (pctx->errcode) {
2851 pctx->num = pb->last_db_block;
2852 goto failed_add_dir_block;
2855 if (!ctx->fs->cluster_ratio_bits) {
2856 mark_blocks_used(ctx, extent.e_pblk, extent.e_len);
2857 pb->num_blocks += extent.e_len;
2859 for (blk = extent.e_pblk, blockcnt = extent.e_lblk, i = 0;
2861 blk++, blockcnt++, i++) {
2862 if (ctx->fs->cluster_ratio_bits &&
2863 !(pb->previous_block &&
2864 (EXT2FS_B2C(ctx->fs, blk) ==
2865 EXT2FS_B2C(ctx->fs, pb->previous_block)) &&
2866 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
2867 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
2868 mark_block_used(ctx, blk);
2871 if (has_unaligned_cluster_map(ctx, pb->previous_block,
2872 pb->last_block, blk,
2874 pctx->blk = blockcnt;
2876 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
2877 mark_block_used(ctx, blk);
2878 mark_block_used(ctx, blk);
2880 pb->last_block = blockcnt;
2881 pb->previous_block = blk;
2884 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pctx->ino, blk, blockcnt);
2885 if (pctx->errcode) {
2887 pctx->num = blockcnt;
2888 failed_add_dir_block:
2889 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
2890 /* Should never get here */
2891 ctx->flags |= E2F_FLAG_ABORT;
2896 if (is_dir && extent.e_len > 0)
2897 pb->last_db_block = blockcnt - 1;
2898 pb->previous_block = extent.e_pblk + extent.e_len - 1;
2899 start_block = pb->last_block = last_lblk;
2900 if (is_leaf && !is_dir &&
2901 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
2902 pb->last_init_lblock = last_lblk;
2904 pctx->errcode = ext2fs_extent_get(ehandle,
2905 EXT2_EXTENT_NEXT_SIB,
2909 /* Failed csum but passes checks? Ask to fix checksum. */
2911 fix_problem(ctx, PR_1_EXTENT_ONLY_CSUM_INVALID, pctx)) {
2912 pb->inode_modified = 1;
2913 pctx->errcode = ext2fs_extent_replace(ehandle, 0, &extent);
2918 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
2922 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
2923 struct process_block_struct *pb)
2925 struct ext2_extent_info info;
2926 struct ext2_inode *inode = pctx->inode;
2927 ext2_extent_handle_t ehandle;
2928 ext2_filsys fs = ctx->fs;
2929 ext2_ino_t ino = pctx->ino;
2932 struct ext3_extent_header *eh;
2934 /* Check for a proper extent header... */
2935 eh = (struct ext3_extent_header *) &inode->i_block[0];
2936 retval = ext2fs_extent_header_verify(eh, sizeof(inode->i_block));
2938 if (fix_problem(ctx, PR_1_MISSING_EXTENT_HEADER, pctx))
2939 e2fsck_clear_inode(ctx, ino, inode, 0,
2940 "check_blocks_extents");
2945 /* ...since this function doesn't fail if i_block is zeroed. */
2946 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
2947 if (pctx->errcode) {
2948 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
2949 e2fsck_clear_inode(ctx, ino, inode, 0,
2950 "check_blocks_extents");
2955 retval = ext2fs_extent_get_info(ehandle, &info);
2957 int max_depth = info.max_depth;
2959 if (max_depth >= MAX_EXTENT_DEPTH_COUNT)
2960 max_depth = MAX_EXTENT_DEPTH_COUNT-1;
2961 ctx->extent_depth_count[max_depth]++;
2964 /* Check maximum extent depth */
2965 pctx->blk = info.max_depth;
2966 pctx->blk2 = ext2fs_max_extent_depth(ehandle);
2967 if (pctx->blk2 < pctx->blk &&
2968 fix_problem(ctx, PR_1_EXTENT_BAD_MAX_DEPTH, pctx))
2969 pb->eti.force_rebuild = 1;
2971 /* Can we collect extent tree level stats? */
2972 pctx->blk = MAX_EXTENT_DEPTH_COUNT;
2973 if (pctx->blk2 > pctx->blk)
2974 fix_problem(ctx, PR_1E_MAX_EXTENT_TREE_DEPTH, pctx);
2975 memset(pb->eti.ext_info, 0, sizeof(pb->eti.ext_info));
2976 pb->eti.ino = pb->ino;
2978 pb->next_lblock = 0;
2980 eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
2981 EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
2982 scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle, 1);
2983 if (pctx->errcode &&
2984 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
2986 inode->i_blocks = 0;
2987 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
2988 "check_blocks_extents");
2991 ext2fs_extent_free(ehandle);
2993 /* Rebuild unless it's a dir and we're rehashing it */
2994 if (LINUX_S_ISDIR(inode->i_mode) &&
2995 e2fsck_dir_will_be_rehashed(ctx, ino))
2998 if (ctx->options & E2F_OPT_CONVERT_BMAP)
2999 e2fsck_rebuild_extents_later(ctx, ino);
3001 e2fsck_should_rebuild_extents(ctx, pctx, &pb->eti, &info);
3005 * In fact we don't need to check blocks for an inode with inline data
3006 * because this inode doesn't have any blocks. In this function all
3007 * we need to do is add this inode into dblist when it is a directory.
3009 static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
3010 struct process_block_struct *pb)
3013 size_t inline_data_size = 0;
3020 /* Process the dirents in i_block[] as the "first" block. */
3021 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 0);
3025 /* Process the dirents in the EA as a "second" block. */
3026 flags = ctx->fs->flags;
3027 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3028 pctx->errcode = ext2fs_inline_data_size(ctx->fs, pb->ino,
3030 ctx->fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3031 (ctx->fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3032 if (pctx->errcode) {
3037 if (inline_data_size <= EXT4_MIN_INLINE_DATA_SIZE)
3040 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pb->ino, 0, 1);
3048 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3049 ctx->flags |= E2F_FLAG_ABORT;
3053 * This subroutine is called on each inode to account for all of the
3054 * blocks used by that inode.
3056 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
3059 ext2_filsys fs = ctx->fs;
3060 struct process_block_struct pb;
3061 ext2_ino_t ino = pctx->ino;
3062 struct ext2_inode *inode = pctx->inode;
3063 unsigned bad_size = 0;
3064 int dirty_inode = 0;
3072 pb.last_init_lblock = -1;
3073 pb.last_db_block = -1;
3074 pb.num_illegal_blocks = 0;
3075 pb.suppress = 0; pb.clear = 0;
3078 pb.previous_block = 0;
3079 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
3080 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
3081 pb.max_blocks = 1U << (31 - fs->super->s_log_block_size);
3085 pb.inode_modified = 0;
3086 pb.eti.force_rebuild = 0;
3090 extent_fs = ext2fs_has_feature_extents(ctx->fs->super);
3091 inlinedata_fs = ext2fs_has_feature_inline_data(ctx->fs->super);
3093 if (check_ext_attr(ctx, pctx, block_buf)) {
3094 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3099 if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
3100 check_blocks_inline_data(ctx, pctx, &pb);
3101 else if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
3102 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
3103 check_blocks_extents(ctx, pctx, &pb);
3107 * If we've modified the inode, write it out before
3108 * iterate() tries to use it.
3111 e2fsck_write_inode(ctx, ino, inode,
3116 fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3117 pctx->errcode = ext2fs_block_iterate3(fs, ino,
3118 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
3119 block_buf, process_block, &pb);
3121 * We do not have uninitialized extents in non extent
3124 pb.last_init_lblock = pb.last_block;
3126 * If iterate() changed a block mapping, we have to
3127 * re-read the inode. If we decide to clear the
3128 * inode after clearing some stuff, we'll re-write the
3129 * bad mappings into the inode!
3131 if (pb.inode_modified)
3132 e2fsck_read_inode(ctx, ino, inode,
3134 fs->flags = (flags & EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3135 (fs->flags & ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3137 if (ctx->options & E2F_OPT_CONVERT_BMAP) {
3139 printf("bmap rebuild ino=%d\n", ino);
3141 if (!LINUX_S_ISDIR(inode->i_mode) ||
3142 !e2fsck_dir_will_be_rehashed(ctx, ino))
3143 e2fsck_rebuild_extents_later(ctx, ino);
3147 end_problem_latch(ctx, PR_LATCH_BLOCK);
3148 end_problem_latch(ctx, PR_LATCH_TOOBIG);
3149 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3152 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
3154 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
3155 if (LINUX_S_ISDIR(inode->i_mode))
3156 ctx->fs_fragmented_dir++;
3158 ctx->fs_fragmented++;
3162 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
3167 if (inode->i_flags & EXT2_INDEX_FL) {
3168 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
3169 inode->i_flags &= ~EXT2_INDEX_FL;
3172 e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
3176 if (!pb.num_blocks && pb.is_dir &&
3177 !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
3178 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
3179 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
3180 ctx->fs_directory_count--;
3185 if (ino != quota_type2inum(PRJQUOTA, fs->super) &&
3186 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super))) {
3187 quota_data_add(ctx->qctx, (struct ext2_inode_large *) inode,
3189 pb.num_blocks * EXT2_CLUSTER_SIZE(fs->super));
3190 quota_data_inodes(ctx->qctx, (struct ext2_inode_large *) inode,
3194 if (!ext2fs_has_feature_huge_file(fs->super) ||
3195 !(inode->i_flags & EXT4_HUGE_FILE_FL))
3196 pb.num_blocks *= (fs->blocksize / 512);
3197 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
3199 printf("inode %u, i_size = %u, last_block = %llu, i_blocks=%llu, num_blocks = %llu\n",
3200 ino, inode->i_size, pb.last_block, ext2fs_inode_i_blocks(fs, inode),
3204 unsigned nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
3205 if (inode->i_flags & EXT4_INLINE_DATA_FL) {
3210 flags = ctx->fs->flags;
3211 ctx->fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
3212 err = ext2fs_inline_data_size(ctx->fs, pctx->ino,
3214 ctx->fs->flags = (flags &
3215 EXT2_FLAG_IGNORE_CSUM_ERRORS) |
3217 ~EXT2_FLAG_IGNORE_CSUM_ERRORS);
3218 if (err || sz != inode->i_size) {
3222 } else if (inode->i_size & (fs->blocksize - 1))
3224 else if (nblock > (pb.last_block + 1))
3226 else if (nblock < (pb.last_block + 1)) {
3227 if (((pb.last_block + 1) - nblock) >
3228 fs->super->s_prealloc_dir_blocks)
3232 e2_blkcnt_t blkpg = ctx->blocks_per_page;
3234 size = EXT2_I_SIZE(inode);
3235 if ((pb.last_init_lblock >= 0) &&
3236 /* allow allocated blocks to end of PAGE_SIZE */
3237 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
3238 (pb.last_init_lblock / blkpg * blkpg != pb.last_init_lblock ||
3239 size < (__u64)(pb.last_init_lblock & ~(blkpg-1)) *
3242 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3243 size > ext2_max_sizes[fs->super->s_log_block_size])
3244 /* too big for a direct/indirect-mapped file */
3246 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
3248 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
3249 /* too big for an extent-based file - 32bit ee_block */
3252 /* i_size for symlinks is checked elsewhere */
3253 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
3254 /* Did inline_data set pctx->num earlier? */
3256 pctx->num = (pb.last_block + 1) * fs->blocksize;
3257 pctx->group = bad_size;
3258 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
3259 if (LINUX_S_ISDIR(inode->i_mode))
3260 pctx->num &= 0xFFFFFFFFULL;
3261 ext2fs_inode_size_set(fs, inode, pctx->num);
3262 if (EXT2_I_SIZE(inode) == 0 &&
3263 (inode->i_flags & EXT4_INLINE_DATA_FL)) {
3264 memset(inode->i_block, 0,
3265 sizeof(inode->i_block));
3266 inode->i_flags &= ~EXT4_INLINE_DATA_FL;
3272 if (LINUX_S_ISREG(inode->i_mode) &&
3273 ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
3275 if ((fs->super->s_creator_os != EXT2_OS_HURD) &&
3276 ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
3277 (ext2fs_has_feature_huge_file(fs->super) &&
3278 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
3279 (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
3280 pctx->num = pb.num_blocks;
3281 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
3282 inode->i_blocks = pb.num_blocks;
3283 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
3290 * The kernel gets mad if we ask it to allocate bigalloc clusters to
3291 * a block mapped file, so rebuild it as an extent file. We can skip
3292 * symlinks because they're never rewritten.
3294 if (ext2fs_has_feature_bigalloc(fs->super) &&
3295 (LINUX_S_ISREG(inode->i_mode) || LINUX_S_ISDIR(inode->i_mode)) &&
3296 ext2fs_inode_data_blocks2(fs, inode) > 0 &&
3297 (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INO(fs->super)) &&
3298 !(inode->i_flags & (EXT4_EXTENTS_FL | EXT4_INLINE_DATA_FL)) &&
3299 fix_problem(ctx, PR_1_NO_BIGALLOC_BLOCKMAP_FILES, pctx)) {
3300 pctx->errcode = e2fsck_rebuild_extents_later(ctx, ino);
3305 if (ctx->dirs_to_hash && pb.is_dir &&
3306 !(ctx->lost_and_found && ctx->lost_and_found == ino) &&
3307 !(inode->i_flags & EXT2_INDEX_FL) &&
3308 ((inode->i_size / fs->blocksize) >= 3))
3309 e2fsck_rehash_dir_later(ctx, ino);
3313 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
3318 * Helper function called by process block when an illegal block is
3319 * found. It returns a description about why the block is illegal
3321 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
3325 static char problem[80];
3327 super = fs->super->s_first_data_block;
3328 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
3329 if (block < super) {
3330 sprintf(problem, "< FIRSTBLOCK (%u)", super);
3332 } else if (block >= ext2fs_blocks_count(fs->super)) {
3333 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
3336 for (i = 0; i < fs->group_desc_count; i++) {
3337 if (block == super) {
3338 sprintf(problem, "is the superblock in group %d", i);
3341 if (block > super &&
3342 block <= (super + fs->desc_blocks)) {
3343 sprintf(problem, "is in the group descriptors "
3347 if (block == ext2fs_block_bitmap_loc(fs, i)) {
3348 sprintf(problem, "is the block bitmap of group %d", i);
3351 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
3352 sprintf(problem, "is the inode bitmap of group %d", i);
3355 if (block >= ext2fs_inode_table_loc(fs, i) &&
3356 (block < ext2fs_inode_table_loc(fs, i)
3357 + fs->inode_blocks_per_group)) {
3358 sprintf(problem, "is in the inode table of group %d",
3362 super += fs->super->s_blocks_per_group;
3369 * This is a helper function for check_blocks().
3371 static int process_block(ext2_filsys fs,
3373 e2_blkcnt_t blockcnt,
3374 blk64_t ref_block EXT2FS_ATTR((unused)),
3375 int ref_offset EXT2FS_ATTR((unused)),
3378 struct process_block_struct *p;
3379 struct problem_context *pctx;
3380 blk64_t blk = *block_nr;
3382 problem_t problem = 0;
3385 p = (struct process_block_struct *) priv_data;
3390 * For a directory, add logical block zero for processing even if it's
3391 * not mapped or we'll be perennially stuck with broken "." and ".."
3394 if (p->is_dir && blockcnt == 0 && blk == 0) {
3395 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
3396 if (pctx->errcode) {
3398 pctx->num = blockcnt;
3399 goto failed_add_dir_block;
3408 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
3413 * Simplistic fragmentation check. We merely require that the
3414 * file be contiguous. (Which can never be true for really
3415 * big files that are greater than a block group.)
3417 if (p->previous_block && p->ino != EXT2_RESIZE_INO) {
3418 if (p->previous_block+1 != blk) {
3419 if (ctx->options & E2F_OPT_FRAGCHECK) {
3427 printf(_("%6lu(%c): expecting %6lu "
3428 "got phys %6lu (blkcnt %lld)\n"),
3429 (unsigned long) pctx->ino, type,
3430 (unsigned long) p->previous_block+1,
3431 (unsigned long) blk,
3438 if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
3439 problem = PR_1_TOOBIG_DIR;
3440 if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
3441 problem = PR_1_TOOBIG_REG;
3442 if (!p->is_dir && !p->is_reg && blockcnt > 0)
3443 problem = PR_1_TOOBIG_SYMLINK;
3445 if (blk < fs->super->s_first_data_block ||
3446 blk >= ext2fs_blocks_count(fs->super))
3447 problem = PR_1_ILLEGAL_BLOCK_NUM;
3450 * If this IND/DIND/TIND block is squatting atop some critical metadata
3451 * (group descriptors, superblock, bitmap, inode table), any write to
3452 * "fix" mapping problems will destroy the metadata. We'll let pass 1b
3453 * fix that and restart fsck.
3456 p->ino != EXT2_RESIZE_INO &&
3457 blk < ctx->fs->super->s_blocks_count &&
3458 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk)) {
3460 fix_problem(ctx, PR_1_CRITICAL_METADATA_COLLISION, pctx);
3461 if ((ctx->options & E2F_OPT_NO) == 0)
3462 ctx->flags |= E2F_FLAG_RESTART_LATER;
3466 p->num_illegal_blocks++;
3468 * A bit of subterfuge here -- we're trying to fix a block
3469 * mapping, but the IND/DIND/TIND block could have collided
3470 * with some critical metadata. So, fix the in-core mapping so
3471 * iterate won't go insane, but return 0 instead of
3472 * BLOCK_CHANGED so that it won't write the remapping out to
3473 * our multiply linked block.
3475 * Even if we previously determined that an *IND block
3476 * conflicts with critical metadata, we must still try to
3477 * iterate the *IND block as if it is an *IND block to find and
3478 * mark the blocks it points to. Better to be overly cautious
3479 * with the used_blocks map so that we don't move the *IND
3480 * block to a block that's really in use!
3482 if (p->ino != EXT2_RESIZE_INO &&
3484 ext2fs_test_block_bitmap2(ctx->block_metadata_map,
3489 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
3490 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
3494 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
3496 set_latch_flags(PR_LATCH_BLOCK,
3501 pctx->blkcount = blockcnt;
3502 if (fix_problem(ctx, problem, pctx)) {
3503 blk = *block_nr = 0;
3504 ret_code = BLOCK_CHANGED;
3505 p->inode_modified = 1;
3507 * If the directory block is too big and is beyond the
3508 * end of the FS, don't bother trying to add it for
3509 * processing -- the kernel would never have created a
3510 * directory this large, and we risk an ENOMEM abort.
3511 * In any case, the toobig handler for extent-based
3512 * directories also doesn't feed toobig blocks to
3515 if (problem == PR_1_TOOBIG_DIR)
3522 if (p->ino == EXT2_RESIZE_INO) {
3524 * The resize inode has already be sanity checked
3525 * during pass #0 (the superblock checks). All we
3526 * have to do is mark the double indirect block as
3527 * being in use; all of the other blocks are handled
3528 * by mark_table_blocks()).
3530 if (blockcnt == BLOCK_COUNT_DIND)
3531 mark_block_used(ctx, blk);
3533 } else if (!(ctx->fs->cluster_ratio_bits &&
3534 p->previous_block &&
3535 (EXT2FS_B2C(ctx->fs, blk) ==
3536 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
3537 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
3538 ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
3539 mark_block_used(ctx, blk);
3541 } else if (has_unaligned_cluster_map(ctx, p->previous_block,
3542 p->last_block, blk, blockcnt)) {
3543 pctx->blk = blockcnt;
3545 fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
3546 mark_block_used(ctx, blk);
3547 mark_block_used(ctx, blk);
3550 p->last_block = blockcnt;
3551 p->previous_block = blk;
3553 if (p->is_dir && (blockcnt >= 0)) {
3554 while (++p->last_db_block < blockcnt) {
3555 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
3558 if (pctx->errcode) {
3560 pctx->num = p->last_db_block;
3561 goto failed_add_dir_block;
3564 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
3566 if (pctx->errcode) {
3568 pctx->num = blockcnt;
3569 failed_add_dir_block:
3570 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
3571 /* Should never get here */
3572 ctx->flags |= E2F_FLAG_ABORT;
3579 static int process_bad_block(ext2_filsys fs,
3581 e2_blkcnt_t blockcnt,
3582 blk64_t ref_block EXT2FS_ATTR((unused)),
3583 int ref_offset EXT2FS_ATTR((unused)),
3586 struct process_block_struct *p;
3587 blk64_t blk = *block_nr;
3588 blk64_t first_block;
3590 struct problem_context *pctx;
3596 p = (struct process_block_struct *) priv_data;
3600 pctx->ino = EXT2_BAD_INO;
3602 pctx->blkcount = blockcnt;
3604 if ((blk < fs->super->s_first_data_block) ||
3605 (blk >= ext2fs_blocks_count(fs->super))) {
3606 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
3608 return BLOCK_CHANGED;
3614 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
3616 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
3618 return BLOCK_CHANGED;
3620 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3623 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
3626 return BLOCK_CHANGED;
3628 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3631 mark_block_used(ctx, blk);
3635 printf ("DEBUG: Marking %u as bad.\n", blk);
3637 ctx->fs_badblocks_count++;
3639 * If the block is not used, then mark it as used and return.
3640 * If it is already marked as found, this must mean that
3641 * there's an overlap between the filesystem table blocks
3642 * (bitmaps and inode table) and the bad block list.
3644 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
3645 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
3649 * Try to find the where the filesystem block was used...
3651 first_block = fs->super->s_first_data_block;
3653 for (i = 0; i < fs->group_desc_count; i++ ) {
3656 if (!ext2fs_bg_has_super(fs, i))
3658 if (blk == first_block) {
3660 if (fix_problem(ctx,
3661 PR_1_BAD_PRIMARY_SUPERBLOCK,
3664 return BLOCK_CHANGED;
3668 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
3671 if ((blk > first_block) &&
3672 (blk <= first_block + fs->desc_blocks)) {
3674 pctx->blk = *block_nr;
3675 if (fix_problem(ctx,
3676 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
3678 return BLOCK_CHANGED;
3682 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
3686 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
3687 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
3688 ctx->invalid_block_bitmap_flag[i]++;
3689 ctx->invalid_bitmaps++;
3693 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
3694 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
3695 ctx->invalid_inode_bitmap_flag[i]++;
3696 ctx->invalid_bitmaps++;
3700 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
3701 (blk < (ext2fs_inode_table_loc(fs, i) +
3702 fs->inode_blocks_per_group))) {
3704 * If there are bad blocks in the inode table,
3705 * the inode scan code will try to do
3706 * something reasonable automatically.
3710 first_block += fs->super->s_blocks_per_group;
3713 * If we've gotten to this point, then the only
3714 * possibility is that the bad block inode meta data
3715 * is using a bad block.
3717 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
3718 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
3719 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
3721 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
3723 return BLOCK_CHANGED;
3725 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
3732 /* Warn user that the block wasn't claimed */
3733 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
3738 static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
3739 const char *name, int num, blk64_t *new_block)
3741 ext2_filsys fs = ctx->fs;
3743 blk64_t old_block = *new_block;
3746 unsigned flexbg_size;
3749 struct problem_context pctx;
3751 clear_problem_context(&pctx);
3754 pctx.blk = old_block;
3758 * For flex_bg filesystems, first try to allocate the metadata
3759 * within the flex_bg, and if that fails then try finding the
3760 * space anywhere in the filesystem.
3762 is_flexbg = ext2fs_has_feature_flex_bg(fs->super);
3764 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
3765 flexbg = group / flexbg_size;
3766 first_block = ext2fs_group_first_block2(fs,
3767 flexbg_size * flexbg);
3768 last_grp = group | (flexbg_size - 1);
3769 if (last_grp >= fs->group_desc_count)
3770 last_grp = fs->group_desc_count - 1;
3771 last_block = ext2fs_group_last_block2(fs, last_grp);
3773 last_block = ext2fs_group_last_block2(fs, group);
3774 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
3775 num, ctx->block_found_map,
3777 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
3778 pctx.errcode = ext2fs_get_free_blocks2(fs,
3779 fs->super->s_first_data_block,
3780 ext2fs_blocks_count(fs->super),
3781 num, ctx->block_found_map, new_block);
3784 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
3785 ext2fs_unmark_valid(fs);
3786 ctx->flags |= E2F_FLAG_ABORT;
3789 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
3791 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
3792 ext2fs_unmark_valid(fs);
3793 ctx->flags |= E2F_FLAG_ABORT;
3796 ext2fs_mark_super_dirty(fs);
3797 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
3798 pctx.blk2 = *new_block;
3799 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
3800 PR_1_RELOC_TO), &pctx);
3802 for (i = 0; i < num; i++) {
3804 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
3806 pctx.errcode = io_channel_read_blk64(fs->io,
3807 old_block + i, 1, buf);
3809 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
3810 pctx.blk = (*new_block) + i;
3811 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
3814 pctx.blk = (*new_block) + i;
3815 pctx.errcode = ext2fs_zero_blocks2(fs, pctx.blk, 1,
3820 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
3822 ext2fs_free_mem(&buf);
3826 * This routine gets called at the end of pass 1 if bad blocks are
3827 * detected in the superblock, group descriptors, inode_bitmaps, or
3828 * block bitmaps. At this point, all of the blocks have been mapped
3829 * out, so we can try to allocate new block(s) to replace the bad
3832 static void handle_fs_bad_blocks(e2fsck_t ctx)
3834 ext2_filsys fs = ctx->fs;
3836 blk64_t first_block;
3839 for (i = 0; i < fs->group_desc_count; i++) {
3840 first_block = ext2fs_group_first_block2(fs, i);
3842 if (ctx->invalid_block_bitmap_flag[i]) {
3843 new_blk = ext2fs_block_bitmap_loc(fs, i);
3844 new_table_block(ctx, first_block, i, _("block bitmap"),
3846 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
3848 if (ctx->invalid_inode_bitmap_flag[i]) {
3849 new_blk = ext2fs_inode_bitmap_loc(fs, i);
3850 new_table_block(ctx, first_block, i, _("inode bitmap"),
3852 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
3854 if (ctx->invalid_inode_table_flag[i]) {
3855 new_blk = ext2fs_inode_table_loc(fs, i);
3856 new_table_block(ctx, first_block, i, _("inode table"),
3857 fs->inode_blocks_per_group,
3859 ext2fs_inode_table_loc_set(fs, i, new_blk);
3860 ctx->flags |= E2F_FLAG_RESTART;
3863 ctx->invalid_bitmaps = 0;
3867 * This routine marks all blocks which are used by the superblock,
3868 * group descriptors, inode bitmaps, and block bitmaps.
3870 static void mark_table_blocks(e2fsck_t ctx)
3872 ext2_filsys fs = ctx->fs;
3876 struct problem_context pctx;
3878 clear_problem_context(&pctx);
3880 for (i = 0; i < fs->group_desc_count; i++) {
3883 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
3884 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_metadata_map);
3887 * Mark the blocks used for the inode table
3889 if (ext2fs_inode_table_loc(fs, i)) {
3890 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
3891 j < fs->inode_blocks_per_group;
3893 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3896 if (!ctx->invalid_inode_table_flag[i] &&
3898 PR_1_ITABLE_CONFLICT, &pctx)) {
3899 ctx->invalid_inode_table_flag[i]++;
3900 ctx->invalid_bitmaps++;
3903 ext2fs_mark_block_bitmap2(
3904 ctx->block_found_map, b);
3905 ext2fs_mark_block_bitmap2(
3906 ctx->block_metadata_map, b);
3912 * Mark block used for the block bitmap
3914 if (ext2fs_block_bitmap_loc(fs, i)) {
3915 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3916 ext2fs_block_bitmap_loc(fs, i))) {
3917 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
3918 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
3919 ctx->invalid_block_bitmap_flag[i]++;
3920 ctx->invalid_bitmaps++;
3923 ext2fs_mark_block_bitmap2(ctx->block_found_map,
3924 ext2fs_block_bitmap_loc(fs, i));
3925 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
3926 ext2fs_block_bitmap_loc(fs, i));
3930 * Mark block used for the inode bitmap
3932 if (ext2fs_inode_bitmap_loc(fs, i)) {
3933 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
3934 ext2fs_inode_bitmap_loc(fs, i))) {
3935 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
3936 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
3937 ctx->invalid_inode_bitmap_flag[i]++;
3938 ctx->invalid_bitmaps++;
3941 ext2fs_mark_block_bitmap2(ctx->block_metadata_map,
3942 ext2fs_inode_bitmap_loc(fs, i));
3943 ext2fs_mark_block_bitmap2(ctx->block_found_map,
3944 ext2fs_inode_bitmap_loc(fs, i));
3951 * These subroutines short circuits ext2fs_get_blocks and
3952 * ext2fs_check_directory; we use them since we already have the inode
3953 * structure, so there's no point in letting the ext2fs library read
3956 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
3959 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3962 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3963 return EXT2_ET_CALLBACK_NOTHANDLED;
3965 for (i=0; i < EXT2_N_BLOCKS; i++)
3966 blocks[i] = ctx->stashed_inode->i_block[i];
3970 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
3971 struct ext2_inode *inode)
3973 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3975 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3976 return EXT2_ET_CALLBACK_NOTHANDLED;
3977 *inode = *ctx->stashed_inode;
3981 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
3982 struct ext2_inode *inode)
3984 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3986 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
3987 (inode != ctx->stashed_inode))
3988 *ctx->stashed_inode = *inode;
3989 return EXT2_ET_CALLBACK_NOTHANDLED;
3992 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
3994 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
3996 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
3997 return EXT2_ET_CALLBACK_NOTHANDLED;
3999 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
4000 return EXT2_ET_NO_DIRECTORY;
4004 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
4007 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4011 if (ctx->block_found_map) {
4012 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
4016 if (fs->block_map) {
4017 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
4018 ext2fs_mark_bb_dirty(fs);
4021 if (!fs->block_map) {
4022 retval = ext2fs_read_block_bitmap(fs);
4027 retval = ext2fs_new_block2(fs, goal, fs->block_map, &new_block);
4036 static errcode_t e2fsck_new_range(ext2_filsys fs, int flags, blk64_t goal,
4037 blk64_t len, blk64_t *pblk, blk64_t *plen)
4039 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4042 if (ctx->block_found_map)
4043 return ext2fs_new_range(fs, flags, goal, len,
4044 ctx->block_found_map, pblk, plen);
4046 if (!fs->block_map) {
4047 retval = ext2fs_read_block_bitmap(fs);
4052 return ext2fs_new_range(fs, flags, goal, len, fs->block_map,
4056 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
4058 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4060 /* Never free a critical metadata block */
4061 if (ctx->block_found_map &&
4062 ctx->block_metadata_map &&
4064 ext2fs_test_block_bitmap2(ctx->block_metadata_map, blk))
4067 if (ctx->block_found_map) {
4069 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
4071 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
4075 static void e2fsck_block_alloc_stats_range(ext2_filsys fs, blk64_t blk,
4076 blk_t num, int inuse)
4078 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
4080 /* Never free a critical metadata block */
4081 if (ctx->block_found_map &&
4082 ctx->block_metadata_map &&
4084 ext2fs_test_block_bitmap_range2(ctx->block_metadata_map, blk, num))
4087 if (ctx->block_found_map) {
4089 ext2fs_mark_block_bitmap_range2(ctx->block_found_map,
4092 ext2fs_unmark_block_bitmap_range2(ctx->block_found_map,
4097 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
4099 ext2_filsys fs = ctx->fs;
4101 if (use_shortcuts) {
4102 fs->get_blocks = pass1_get_blocks;
4103 fs->check_directory = pass1_check_directory;
4104 fs->read_inode = pass1_read_inode;
4105 fs->write_inode = pass1_write_inode;
4106 ctx->stashed_ino = 0;
4109 fs->check_directory = 0;
4111 fs->write_inode = 0;
4115 void e2fsck_intercept_block_allocations(e2fsck_t ctx)
4117 ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
4118 ext2fs_set_block_alloc_stats_callback(ctx->fs,
4119 e2fsck_block_alloc_stats, 0);
4120 ext2fs_set_new_range_callback(ctx->fs, e2fsck_new_range, NULL);
4121 ext2fs_set_block_alloc_stats_range_callback(ctx->fs,
4122 e2fsck_block_alloc_stats_range, NULL);