2 * pass1.c -- pass #1 of e2fsck: sequential scan of the inode table
4 * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
11 * Pass 1 of e2fsck iterates over all the inodes in the filesystems,
12 * and applies the following tests to each inode:
14 * - The mode field of the inode must be legal.
15 * - The size and block count fields of the inode are correct.
16 * - A data block must not be used by another inode
18 * Pass 1 also gathers the collects the following information:
20 * - A bitmap of which inodes are in use. (inode_used_map)
21 * - A bitmap of which inodes are directories. (inode_dir_map)
22 * - A bitmap of which inodes are regular files. (inode_reg_map)
23 * - A bitmap of which inodes have bad fields. (inode_bad_map)
24 * - A bitmap of which inodes are in bad blocks. (inode_bb_map)
25 * - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
26 * - A bitmap of which blocks are in use. (block_found_map)
27 * - A bitmap of which blocks are in use by two inodes (block_dup_map)
28 * - The data blocks of the directory inodes. (dir_map)
30 * Pass 1 is designed to stash away enough information so that the
31 * other passes should not need to read in the inode information
32 * during the normal course of a filesystem check. (Althogh if an
33 * inconsistency is detected, other passes may need to read in an
36 * Note that pass 1B will be invoked if there are any duplicate blocks
40 #define _GNU_SOURCE 1 /* get strnlen() */
49 #include <ext2fs/ext2_ext_attr.h>
53 #ifdef NO_INLINE_FUNCS
56 #define _INLINE_ inline
59 static int process_block(ext2_filsys fs, blk64_t *blocknr,
60 e2_blkcnt_t blockcnt, blk64_t ref_blk,
61 int ref_offset, void *priv_data);
62 static int process_bad_block(ext2_filsys fs, blk64_t *block_nr,
63 e2_blkcnt_t blockcnt, blk64_t ref_blk,
64 int ref_offset, void *priv_data);
65 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
67 static void mark_table_blocks(e2fsck_t ctx);
68 static void alloc_bb_map(e2fsck_t ctx);
69 static void alloc_imagic_map(e2fsck_t ctx);
70 static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
71 static void handle_fs_bad_blocks(e2fsck_t ctx);
72 static void process_inodes(e2fsck_t ctx, char *block_buf);
73 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
74 static errcode_t scan_callback(ext2_filsys fs, ext2_inode_scan scan,
75 dgrp_t group, void * priv_data);
76 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
77 char *block_buf, int adjust_sign);
78 /* static char *describe_illegal_block(ext2_filsys fs, blk64_t block); */
80 struct process_block_struct {
82 unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
83 fragmented:1, compressed:1, bbcheck:1;
86 e2_blkcnt_t last_block;
87 e2_blkcnt_t last_init_lblock;
88 e2_blkcnt_t last_db_block;
89 int num_illegal_blocks;
90 blk64_t previous_block;
91 struct ext2_inode *inode;
92 struct problem_context *pctx;
93 ext2fs_block_bitmap fs_meta_blocks;
97 struct process_inode_block {
99 struct ext2_inode inode;
102 struct scan_callback_struct {
108 * For the inodes to process list.
110 static struct process_inode_block *inodes_to_process;
111 static int process_inode_count;
113 static __u64 ext2_max_sizes[EXT2_MAX_BLOCK_LOG_SIZE -
114 EXT2_MIN_BLOCK_LOG_SIZE + 1];
117 * Free all memory allocated by pass1 in preparation for restarting
120 static void unwind_pass1(ext2_filsys fs EXT2FS_ATTR((unused)))
122 ext2fs_free_mem(&inodes_to_process);
123 inodes_to_process = 0;
127 * Check to make sure a device inode is real. Returns 1 if the device
128 * checks out, 0 if not.
130 * Note: this routine is now also used to check FIFO's and Sockets,
131 * since they have the same requirement; the i_block fields should be
134 int e2fsck_pass1_check_device_inode(ext2_filsys fs EXT2FS_ATTR((unused)),
135 struct ext2_inode *inode)
140 * If the index flag is set, then this is a bogus
143 if (inode->i_flags & EXT2_INDEX_FL)
147 * We should be able to do the test below all the time, but
148 * because the kernel doesn't forcibly clear the device
149 * inode's additional i_block fields, there are some rare
150 * occasions when a legitimate device inode will have non-zero
151 * additional i_block fields. So for now, we only complain
152 * when the immutable flag is set, which should never happen
153 * for devices. (And that's when the problem is caused, since
154 * you can't set or clear immutable flags for devices.) Once
155 * the kernel has been fixed we can change this...
157 if (inode->i_flags & (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)) {
158 for (i=4; i < EXT2_N_BLOCKS; i++)
159 if (inode->i_block[i])
166 * Check to make sure a symlink inode is real. Returns 1 if the symlink
167 * checks out, 0 if not.
169 int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
170 struct ext2_inode *inode, char *buf)
175 ext2_extent_handle_t handle;
176 struct ext2_extent_info info;
177 struct ext2fs_extent extent;
179 if ((inode->i_size_high || inode->i_size == 0) ||
180 (inode->i_flags & EXT2_INDEX_FL))
183 if (inode->i_flags & EXT4_EXTENTS_FL) {
184 if (inode->i_size > fs->blocksize)
186 if (ext2fs_extent_open2(fs, ino, inode, &handle))
189 if (ext2fs_extent_get_info(handle, &info) ||
190 (info.num_entries != 1) ||
191 (info.max_depth != 0))
193 if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent) ||
194 (extent.e_lblk != 0) ||
195 (extent.e_len != 1) ||
196 (extent.e_pblk < fs->super->s_first_data_block) ||
197 (extent.e_pblk >= ext2fs_blocks_count(fs->super)))
201 ext2fs_extent_free(handle);
205 blocks = ext2fs_inode_data_blocks2(fs, inode);
207 if ((inode->i_size >= fs->blocksize) ||
208 (blocks != fs->blocksize >> 9) ||
209 (inode->i_block[0] < fs->super->s_first_data_block) ||
210 (inode->i_block[0] >= ext2fs_blocks_count(fs->super)))
213 for (i = 1; i < EXT2_N_BLOCKS; i++)
214 if (inode->i_block[i])
217 if (io_channel_read_blk64(fs->io, inode->i_block[0], 1, buf))
220 len = strnlen(buf, fs->blocksize);
221 if (len == fs->blocksize)
224 if (inode->i_size >= sizeof(inode->i_block))
227 len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
228 if (len == sizeof(inode->i_block))
231 if (len != inode->i_size)
237 * If the immutable (or append-only) flag is set on the inode, offer
240 #define BAD_SPECIAL_FLAGS (EXT2_IMMUTABLE_FL | EXT2_APPEND_FL)
241 static void check_immutable(e2fsck_t ctx, struct problem_context *pctx)
243 if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
246 if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
249 pctx->inode->i_flags &= ~BAD_SPECIAL_FLAGS;
250 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
254 * If device, fifo or socket, check size is zero -- if not offer to
257 static void check_size(e2fsck_t ctx, struct problem_context *pctx)
259 struct ext2_inode *inode = pctx->inode;
261 if (EXT2_I_SIZE(inode) == 0)
264 if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
268 inode->i_size_high = 0;
269 e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
272 static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
274 struct ext2_super_block *sb = ctx->fs->super;
275 struct ext2_inode_large *inode;
276 struct ext2_ext_attr_entry *entry;
278 unsigned int storage_size, remain;
281 inode = (struct ext2_inode_large *) pctx->inode;
282 storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
283 inode->i_extra_isize;
284 start = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
285 inode->i_extra_isize + sizeof(__u32);
286 entry = (struct ext2_ext_attr_entry *) start;
288 /* scan all entry's headers first */
290 /* take finish entry 0UL into account */
291 remain = storage_size - sizeof(__u32);
293 while (!EXT2_EXT_IS_LAST_ENTRY(entry)) {
296 /* header eats this space */
297 remain -= sizeof(struct ext2_ext_attr_entry);
299 /* is attribute name valid? */
300 if (EXT2_EXT_ATTR_SIZE(entry->e_name_len) > remain) {
301 pctx->num = entry->e_name_len;
302 problem = PR_1_ATTR_NAME_LEN;
306 /* attribute len eats this space */
307 remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
309 /* check value size */
310 if (entry->e_value_size > remain) {
311 pctx->num = entry->e_value_size;
312 problem = PR_1_ATTR_VALUE_SIZE;
316 /* e_value_block must be 0 in inode's ea */
317 if (entry->e_value_block != 0) {
318 pctx->num = entry->e_value_block;
319 problem = PR_1_ATTR_VALUE_BLOCK;
323 hash = ext2fs_ext_attr_hash_entry(entry,
324 start + entry->e_value_offs);
326 /* e_hash may be 0 in older inode's ea */
327 if (entry->e_hash != 0 && entry->e_hash != hash) {
328 pctx->num = entry->e_hash;
329 problem = PR_1_ATTR_HASH;
333 remain -= entry->e_value_size;
335 entry = EXT2_EXT_ATTR_NEXT(entry);
339 * it seems like a corruption. it's very unlikely we could repair
340 * EA(s) in automatic fashion -bzzz
342 if (problem == 0 || !fix_problem(ctx, problem, pctx))
345 /* simply remove all possible EA(s) */
346 *((__u32 *)start) = 0UL;
347 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
348 EXT2_INODE_SIZE(sb), "pass1");
351 static void check_inode_extra_space(e2fsck_t ctx, struct problem_context *pctx)
353 struct ext2_super_block *sb = ctx->fs->super;
354 struct ext2_inode_large *inode;
358 inode = (struct ext2_inode_large *) pctx->inode;
359 if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
360 /* this isn't large inode. so, nothing to check */
365 printf("inode #%u, i_extra_size %d\n", pctx->ino,
366 inode->i_extra_isize);
368 /* i_extra_isize must cover i_extra_isize + i_checksum_hi at least */
369 min = sizeof(inode->i_extra_isize) + sizeof(inode->i_checksum_hi);
370 max = EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE;
372 * For now we will allow i_extra_isize to be 0, but really
373 * implementations should never allow i_extra_isize to be 0
375 if (inode->i_extra_isize &&
376 (inode->i_extra_isize < min || inode->i_extra_isize > max)) {
377 if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
379 inode->i_extra_isize = min;
380 e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
381 EXT2_INODE_SIZE(sb), "pass1");
385 eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
386 inode->i_extra_isize);
387 if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
388 /* it seems inode has an extended attribute(s) in body */
389 check_ea_in_inode(ctx, pctx);
394 * Check to see if the inode might really be a directory, despite i_mode
396 * This is a lot of complexity for something for which I'm not really
397 * convinced happens frequently in the wild. If for any reason this
398 * causes any problems, take this code out.
399 * [tytso:20070331.0827EDT]
401 static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx,
404 struct ext2_inode *inode = pctx->inode;
405 struct ext2_dir_entry *dirent;
408 unsigned int i, rec_len, not_device = 0;
412 * If the mode looks OK, we believe it. If the first block in
413 * the i_block array is 0, this cannot be a directory. If the
414 * inode is extent-mapped, it is still the case that the latter
415 * cannot be 0 - the magic number in the extent header would make
418 if (LINUX_S_ISDIR(inode->i_mode) || LINUX_S_ISREG(inode->i_mode) ||
419 LINUX_S_ISLNK(inode->i_mode) || inode->i_block[0] == 0)
423 * Check the block numbers in the i_block array for validity:
424 * zero blocks are skipped (but the first one cannot be zero -
425 * see above), other blocks are checked against the first and
426 * max data blocks (from the the superblock) and against the
427 * block bitmap. Any invalid block found means this cannot be
430 * If there are non-zero blocks past the fourth entry, then
431 * this cannot be a device file: we remember that for the next
434 * For extent mapped files, we don't do any sanity checking:
435 * just try to get the phys block of logical block 0 and run
439 extent_fs = (ctx->fs->super->s_feature_incompat &
440 EXT3_FEATURE_INCOMPAT_EXTENTS);
441 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) {
443 if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0,
446 /* device files are never extent mapped */
449 for (i=0; i < EXT2_N_BLOCKS; i++) {
450 blk = inode->i_block[i];
456 if (blk < ctx->fs->super->s_first_data_block ||
457 blk >= ext2fs_blocks_count(ctx->fs->super) ||
458 ext2fs_fast_test_block_bitmap2(ctx->block_found_map,
460 return; /* Invalid block, can't be dir */
462 blk = inode->i_block[0];
466 * If the mode says this is a device file and the i_links_count field
467 * is sane and we have not ruled it out as a device file previously,
468 * we declare it a device file, not a directory.
470 if ((LINUX_S_ISCHR(inode->i_mode) || LINUX_S_ISBLK(inode->i_mode)) &&
471 (inode->i_links_count == 1) && !not_device)
474 /* read the first block */
475 ehandler_operation(_("reading directory block"));
476 retval = ext2fs_read_dir_block3(ctx->fs, blk, buf, 0);
477 ehandler_operation(0);
481 dirent = (struct ext2_dir_entry *) buf;
482 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
485 if (((dirent->name_len & 0xFF) != 1) ||
486 (dirent->name[0] != '.') ||
487 (dirent->inode != pctx->ino) ||
490 (rec_len >= ctx->fs->blocksize - 12))
493 dirent = (struct ext2_dir_entry *) (buf + rec_len);
494 retval = ext2fs_get_rec_len(ctx->fs, dirent, &rec_len);
497 if (((dirent->name_len & 0xFF) != 2) ||
498 (dirent->name[0] != '.') ||
499 (dirent->name[1] != '.') ||
504 if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
505 inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
506 e2fsck_write_inode_full(ctx, pctx->ino, inode,
507 EXT2_INODE_SIZE(ctx->fs->super),
508 "check_is_really_dir");
512 extern void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
515 unsigned int threshold;
523 profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
525 profile_get_uint(ctx->profile, "scratch_files",
526 "numdirs_threshold", 0, 0, &threshold);
527 profile_get_boolean(ctx->profile, "scratch_files",
528 "icount", 0, 1, &enable);
530 retval = ext2fs_get_num_dirs(ctx->fs, &num_dirs);
532 num_dirs = 1024; /* Guess */
534 if (!enable || !tdb_dir || access(tdb_dir, W_OK) ||
535 (threshold && num_dirs <= threshold))
538 retval = ext2fs_create_icount_tdb(ctx->fs, tdb_dir, flags, ret);
543 void e2fsck_pass1(e2fsck_t ctx)
547 ext2_filsys fs = ctx->fs;
549 struct ext2_inode *inode;
550 ext2_inode_scan scan;
552 #ifdef RESOURCE_TRACK
553 struct resource_track rtrack;
555 unsigned char frag, fsize;
556 struct problem_context pctx;
557 struct scan_callback_struct scan_struct;
558 struct ext2_super_block *sb = ctx->fs->super;
560 unsigned int save_type;
561 int imagic_fs, extent_fs;
562 int busted_fs_time = 0;
565 init_resource_track(&rtrack, ctx->fs->io);
566 clear_problem_context(&pctx);
568 if (!(ctx->options & E2F_OPT_PREEN))
569 fix_problem(ctx, PR_1_PASS_HEADER, &pctx);
571 if ((fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) &&
572 !(ctx->options & E2F_OPT_NO)) {
573 if (ext2fs_u32_list_create(&ctx->dirs_to_hash, 50))
574 ctx->dirs_to_hash = 0;
578 mtrace_print("Pass 1");
581 #define EXT2_BPP(bits) (1ULL << ((bits) - 2))
583 for (i = EXT2_MIN_BLOCK_LOG_SIZE; i <= EXT2_MAX_BLOCK_LOG_SIZE; i++) {
584 max_sizes = EXT2_NDIR_BLOCKS + EXT2_BPP(i);
585 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i);
586 max_sizes = max_sizes + EXT2_BPP(i) * EXT2_BPP(i) * EXT2_BPP(i);
587 max_sizes = (max_sizes * (1UL << i));
588 ext2_max_sizes[i - EXT2_MIN_BLOCK_LOG_SIZE] = max_sizes;
592 imagic_fs = (sb->s_feature_compat & EXT2_FEATURE_COMPAT_IMAGIC_INODES);
593 extent_fs = (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS);
596 * Allocate bitmaps structures
598 pctx.errcode = e2fsck_allocate_inode_bitmap(fs, _("in-use inode map"),
599 EXT2FS_BMAP64_RBTREE,
601 &ctx->inode_used_map);
604 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
605 ctx->flags |= E2F_FLAG_ABORT;
608 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
609 _("directory inode map"),
610 EXT2FS_BMAP64_AUTODIR,
611 "inode_dir_map", &ctx->inode_dir_map);
614 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
615 ctx->flags |= E2F_FLAG_ABORT;
618 pctx.errcode = e2fsck_allocate_inode_bitmap(fs,
619 _("regular file inode map"), EXT2FS_BMAP64_RBTREE,
620 "inode_reg_map", &ctx->inode_reg_map);
623 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
624 ctx->flags |= E2F_FLAG_ABORT;
627 pctx.errcode = e2fsck_allocate_subcluster_bitmap(fs,
628 _("in-use block map"), EXT2FS_BMAP64_RBTREE,
629 "block_found_map", &ctx->block_found_map);
632 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
633 ctx->flags |= E2F_FLAG_ABORT;
636 e2fsck_setup_tdb_icount(ctx, 0, &ctx->inode_link_info);
637 if (!ctx->inode_link_info) {
638 e2fsck_set_bitmap_type(fs, EXT2FS_BMAP64_RBTREE,
639 "inode_link_info", &save_type);
640 pctx.errcode = ext2fs_create_icount2(fs, 0, 0, 0,
641 &ctx->inode_link_info);
642 fs->default_bitmap_type = save_type;
646 fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
647 ctx->flags |= E2F_FLAG_ABORT;
650 inode_size = EXT2_INODE_SIZE(fs->super);
651 inode = (struct ext2_inode *)
652 e2fsck_allocate_memory(ctx, inode_size, "scratch inode");
654 inodes_to_process = (struct process_inode_block *)
655 e2fsck_allocate_memory(ctx,
656 (ctx->process_inode_size *
657 sizeof(struct process_inode_block)),
658 "array of inodes to process");
659 process_inode_count = 0;
661 pctx.errcode = ext2fs_init_dblist(fs, 0);
663 fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
664 ctx->flags |= E2F_FLAG_ABORT;
665 ext2fs_free_mem(&inode);
670 * If the last orphan field is set, clear it, since the pass1
671 * processing will automatically find and clear the orphans.
672 * In the future, we may want to try using the last_orphan
673 * linked list ourselves, but for now, we clear it so that the
674 * ext3 mount code won't get confused.
676 if (!(ctx->options & E2F_OPT_READONLY)) {
677 if (fs->super->s_last_orphan) {
678 fs->super->s_last_orphan = 0;
679 ext2fs_mark_super_dirty(fs);
683 mark_table_blocks(ctx);
684 pctx.errcode = ext2fs_convert_subcluster_bitmap(fs,
685 &ctx->block_found_map);
687 fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
688 ctx->flags |= E2F_FLAG_ABORT;
689 ext2fs_free_mem(&inode);
692 block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
693 "block interate buffer");
694 e2fsck_use_inode_shortcuts(ctx, 1);
695 old_op = ehandler_operation(_("opening inode scan"));
696 pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
698 ehandler_operation(old_op);
700 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
701 ctx->flags |= E2F_FLAG_ABORT;
702 ext2fs_free_mem(&block_buf);
703 ext2fs_free_mem(&inode);
706 ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE, 0);
707 ctx->stashed_inode = inode;
708 scan_struct.ctx = ctx;
709 scan_struct.block_buf = block_buf;
710 ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
712 if ((ctx->progress)(ctx, 1, 0, ctx->fs->group_desc_count))
714 if ((fs->super->s_wtime < fs->super->s_inodes_count) ||
715 (fs->super->s_mtime < fs->super->s_inodes_count))
718 if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) &&
719 !(fs->super->s_mmp_block <= fs->super->s_first_data_block ||
720 fs->super->s_mmp_block >= fs->super->s_blocks_count))
721 ext2fs_mark_block_bitmap2(ctx->block_found_map,
722 fs->super->s_mmp_block);
725 if (ino % (fs->super->s_inodes_per_group * 4) == 1) {
726 if (e2fsck_mmp_update(fs))
729 old_op = ehandler_operation(_("getting next inode from scan"));
730 pctx.errcode = ext2fs_get_next_inode_full(scan, &ino,
732 ehandler_operation(old_op);
733 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
735 if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
736 if (!ctx->inode_bb_map)
738 ext2fs_mark_inode_bitmap2(ctx->inode_bb_map, ino);
739 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
743 fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
744 ctx->flags |= E2F_FLAG_ABORT;
751 ctx->stashed_ino = ino;
752 if (inode->i_links_count) {
753 pctx.errcode = ext2fs_icount_store(ctx->inode_link_info,
754 ino, inode->i_links_count);
756 pctx.num = inode->i_links_count;
757 fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
758 ctx->flags |= E2F_FLAG_ABORT;
764 * Test for incorrect extent flag settings.
766 * On big-endian machines we must be careful:
767 * When the inode is read, the i_block array is not swapped
768 * if the extent flag is set. Therefore if we are testing
769 * for or fixing a wrongly-set flag, we must potentially
770 * (un)swap before testing, or after fixing.
774 * In this case the extents flag was set when read, so
775 * extent_header_verify is ok. If the inode is cleared,
776 * no need to swap... so no extra swapping here.
778 if ((inode->i_flags & EXT4_EXTENTS_FL) && !extent_fs &&
779 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
780 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO))) {
781 if ((ext2fs_extent_header_verify(inode->i_block,
782 sizeof(inode->i_block)) == 0) &&
783 fix_problem(ctx, PR_1_EXTENT_FEATURE, &pctx)) {
784 sb->s_feature_incompat |= EXT3_FEATURE_INCOMPAT_EXTENTS;
785 ext2fs_mark_super_dirty(fs);
787 } else if (fix_problem(ctx, PR_1_EXTENTS_SET, &pctx)) {
789 e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
790 if (ino == EXT2_BAD_INO)
791 ext2fs_mark_inode_bitmap2(ctx->inode_used_map,
798 * For big-endian machines:
799 * If the inode didn't have the extents flag set when it
800 * was read, then the i_blocks array was swapped. To test
801 * as an extents header, we must swap it back first.
802 * IF we then set the extents flag, the entire i_block
803 * array must be un/re-swapped to make it proper extents data.
805 if (extent_fs && !(inode->i_flags & EXT4_EXTENTS_FL) &&
806 (inode->i_links_count || (ino == EXT2_BAD_INO) ||
807 (ino == EXT2_ROOT_INO) || (ino == EXT2_JOURNAL_INO)) &&
808 (LINUX_S_ISREG(inode->i_mode) ||
809 LINUX_S_ISDIR(inode->i_mode))) {
811 #ifdef WORDS_BIGENDIAN
812 __u32 tmp_block[EXT2_N_BLOCKS];
814 for (i = 0; i < EXT2_N_BLOCKS; i++)
815 tmp_block[i] = ext2fs_swab32(inode->i_block[i]);
818 ehp = inode->i_block;
820 if ((ext2fs_extent_header_verify(ehp,
821 sizeof(inode->i_block)) == 0) &&
822 (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
823 inode->i_flags |= EXT4_EXTENTS_FL;
824 #ifdef WORDS_BIGENDIAN
825 memcpy(inode->i_block, tmp_block,
826 sizeof(inode->i_block));
828 e2fsck_write_inode(ctx, ino, inode, "pass1");
832 if (ino == EXT2_BAD_INO) {
833 struct process_block_struct pb;
835 if ((inode->i_mode || inode->i_uid || inode->i_gid ||
836 inode->i_links_count || inode->i_file_acl) &&
837 fix_problem(ctx, PR_1_INVALID_BAD_INODE, &pctx)) {
838 memset(inode, 0, sizeof(struct ext2_inode));
839 e2fsck_write_inode(ctx, ino, inode,
843 pctx.errcode = ext2fs_copy_bitmap(ctx->block_found_map,
847 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
848 ctx->flags |= E2F_FLAG_ABORT;
851 pb.ino = EXT2_BAD_INO;
852 pb.num_blocks = pb.last_block = 0;
853 pb.last_db_block = -1;
854 pb.num_illegal_blocks = 0;
855 pb.suppress = 0; pb.clear = 0; pb.is_dir = 0;
856 pb.is_reg = 0; pb.fragmented = 0; pb.bbcheck = 0;
860 pctx.errcode = ext2fs_block_iterate3(fs, ino, 0,
861 block_buf, process_bad_block, &pb);
862 ext2fs_free_block_bitmap(pb.fs_meta_blocks);
864 fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
865 ctx->flags |= E2F_FLAG_ABORT;
869 if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
870 ctx->flags |= E2F_FLAG_ABORT;
873 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
874 clear_problem_context(&pctx);
876 } else if (ino == EXT2_ROOT_INO) {
878 * Make sure the root inode is a directory; if
879 * not, offer to clear it. It will be
880 * regnerated in pass #3.
882 if (!LINUX_S_ISDIR(inode->i_mode)) {
883 if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
887 * If dtime is set, offer to clear it. mke2fs
888 * version 0.2b created filesystems with the
889 * dtime field set for the root and lost+found
890 * directories. We won't worry about
891 * /lost+found, since that can be regenerated
892 * easily. But we will fix the root directory
895 if (inode->i_dtime && inode->i_links_count) {
896 if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
898 e2fsck_write_inode(ctx, ino, inode,
902 } else if (ino == EXT2_JOURNAL_INO) {
903 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
904 if (fs->super->s_journal_inum == EXT2_JOURNAL_INO) {
905 if (!LINUX_S_ISREG(inode->i_mode) &&
906 fix_problem(ctx, PR_1_JOURNAL_BAD_MODE,
908 inode->i_mode = LINUX_S_IFREG;
909 e2fsck_write_inode(ctx, ino, inode,
912 check_blocks(ctx, &pctx, block_buf);
915 if ((inode->i_links_count ||
916 inode->i_blocks || inode->i_block[0]) &&
917 fix_problem(ctx, PR_1_JOURNAL_INODE_NOT_CLEAR,
919 memset(inode, 0, inode_size);
920 ext2fs_icount_store(ctx->inode_link_info,
922 e2fsck_write_inode_full(ctx, ino, inode,
923 inode_size, "pass1");
925 } else if ((ino == EXT4_USR_QUOTA_INO) ||
926 (ino == EXT4_GRP_QUOTA_INO)) {
927 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
928 if ((fs->super->s_feature_ro_compat &
929 EXT4_FEATURE_RO_COMPAT_QUOTA) &&
930 ((fs->super->s_usr_quota_inum == ino) ||
931 (fs->super->s_grp_quota_inum == ino))) {
932 if (!LINUX_S_ISREG(inode->i_mode) &&
933 fix_problem(ctx, PR_1_QUOTA_BAD_MODE,
935 inode->i_mode = LINUX_S_IFREG;
936 e2fsck_write_inode(ctx, ino, inode,
939 check_blocks(ctx, &pctx, block_buf);
942 if ((inode->i_links_count ||
943 inode->i_blocks || inode->i_block[0]) &&
944 fix_problem(ctx, PR_1_QUOTA_INODE_NOT_CLEAR,
946 memset(inode, 0, inode_size);
947 ext2fs_icount_store(ctx->inode_link_info,
949 e2fsck_write_inode_full(ctx, ino, inode,
950 inode_size, "pass1");
952 } else if (ino < EXT2_FIRST_INODE(fs->super)) {
955 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
956 if (ino == EXT2_BOOT_LOADER_INO) {
957 if (LINUX_S_ISDIR(inode->i_mode))
958 problem = PR_1_RESERVED_BAD_MODE;
959 } else if (ino == EXT2_RESIZE_INO) {
961 !LINUX_S_ISREG(inode->i_mode))
962 problem = PR_1_RESERVED_BAD_MODE;
964 if (inode->i_mode != 0)
965 problem = PR_1_RESERVED_BAD_MODE;
968 if (fix_problem(ctx, problem, &pctx)) {
970 e2fsck_write_inode(ctx, ino, inode,
974 check_blocks(ctx, &pctx, block_buf);
979 * Check for inodes who might have been part of the
980 * orphaned list linked list. They should have gotten
981 * dealt with by now, unless the list had somehow been
984 * FIXME: In the future, inodes which are still in use
985 * (and which are therefore) pending truncation should
986 * be handled specially. Right now we just clear the
987 * dtime field, and the normal e2fsck handling of
988 * inodes where i_size and the inode blocks are
989 * inconsistent is to fix i_size, instead of releasing
990 * the extra blocks. This won't catch the inodes that
991 * was at the end of the orphan list, but it's better
992 * than nothing. The right answer is that there
993 * shouldn't be any bugs in the orphan list handling. :-)
995 if (inode->i_dtime && !busted_fs_time &&
996 inode->i_dtime < ctx->fs->super->s_inodes_count) {
997 if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
998 inode->i_dtime = inode->i_links_count ?
1000 e2fsck_write_inode(ctx, ino, inode,
1006 * This code assumes that deleted inodes have
1007 * i_links_count set to 0.
1009 if (!inode->i_links_count) {
1010 if (!inode->i_dtime && inode->i_mode) {
1011 if (fix_problem(ctx,
1012 PR_1_ZERO_DTIME, &pctx)) {
1013 inode->i_dtime = ctx->now;
1014 e2fsck_write_inode(ctx, ino, inode,
1021 * n.b. 0.3c ext2fs code didn't clear i_links_count for
1022 * deleted files. Oops.
1024 * Since all new ext2 implementations get this right,
1025 * we now assume that the case of non-zero
1026 * i_links_count and non-zero dtime means that we
1027 * should keep the file, not delete it.
1030 if (inode->i_dtime) {
1031 if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
1033 e2fsck_write_inode(ctx, ino, inode, "pass1");
1037 ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
1038 switch (fs->super->s_creator_os) {
1040 frag = inode->osd2.hurd2.h_i_frag;
1041 fsize = inode->osd2.hurd2.h_i_fsize;
1047 if (inode->i_faddr || frag || fsize ||
1048 (LINUX_S_ISDIR(inode->i_mode) && inode->i_dir_acl))
1049 mark_inode_bad(ctx, ino);
1050 if (!(fs->super->s_feature_incompat &
1051 EXT4_FEATURE_INCOMPAT_64BIT) &&
1052 inode->osd2.linux2.l_i_file_acl_high != 0)
1053 mark_inode_bad(ctx, ino);
1054 if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
1055 !(fs->super->s_feature_ro_compat &
1056 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
1057 (inode->osd2.linux2.l_i_blocks_hi != 0))
1058 mark_inode_bad(ctx, ino);
1059 if (inode->i_flags & EXT2_IMAGIC_FL) {
1061 if (!ctx->inode_imagic_map)
1062 alloc_imagic_map(ctx);
1063 ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
1066 if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
1067 inode->i_flags &= ~EXT2_IMAGIC_FL;
1068 e2fsck_write_inode(ctx, ino,
1074 check_inode_extra_space(ctx, &pctx);
1075 check_is_really_dir(ctx, &pctx, block_buf);
1078 * ext2fs_inode_has_valid_blocks2 does not actually look
1079 * at i_block[] values, so not endian-sensitive here.
1081 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL) &&
1082 LINUX_S_ISLNK(inode->i_mode) &&
1083 !ext2fs_inode_has_valid_blocks2(fs, inode) &&
1084 fix_problem(ctx, PR_1_FAST_SYMLINK_EXTENT_FL, &pctx)) {
1085 inode->i_flags &= ~EXT4_EXTENTS_FL;
1086 e2fsck_write_inode(ctx, ino, inode, "pass1");
1089 if (LINUX_S_ISDIR(inode->i_mode)) {
1090 ext2fs_mark_inode_bitmap2(ctx->inode_dir_map, ino);
1091 e2fsck_add_dir_info(ctx, ino, 0);
1092 ctx->fs_directory_count++;
1093 } else if (LINUX_S_ISREG (inode->i_mode)) {
1094 ext2fs_mark_inode_bitmap2(ctx->inode_reg_map, ino);
1095 ctx->fs_regular_count++;
1096 } else if (LINUX_S_ISCHR (inode->i_mode) &&
1097 e2fsck_pass1_check_device_inode(fs, inode)) {
1098 check_immutable(ctx, &pctx);
1099 check_size(ctx, &pctx);
1100 ctx->fs_chardev_count++;
1101 } else if (LINUX_S_ISBLK (inode->i_mode) &&
1102 e2fsck_pass1_check_device_inode(fs, inode)) {
1103 check_immutable(ctx, &pctx);
1104 check_size(ctx, &pctx);
1105 ctx->fs_blockdev_count++;
1106 } else if (LINUX_S_ISLNK (inode->i_mode) &&
1107 e2fsck_pass1_check_symlink(fs, ino, inode,
1109 check_immutable(ctx, &pctx);
1110 ctx->fs_symlinks_count++;
1111 if (ext2fs_inode_data_blocks(fs, inode) == 0) {
1112 ctx->fs_fast_symlinks_count++;
1113 check_blocks(ctx, &pctx, block_buf);
1117 else if (LINUX_S_ISFIFO (inode->i_mode) &&
1118 e2fsck_pass1_check_device_inode(fs, inode)) {
1119 check_immutable(ctx, &pctx);
1120 check_size(ctx, &pctx);
1121 ctx->fs_fifo_count++;
1122 } else if ((LINUX_S_ISSOCK (inode->i_mode)) &&
1123 e2fsck_pass1_check_device_inode(fs, inode)) {
1124 check_immutable(ctx, &pctx);
1125 check_size(ctx, &pctx);
1126 ctx->fs_sockets_count++;
1128 mark_inode_bad(ctx, ino);
1129 if (!(inode->i_flags & EXT4_EXTENTS_FL)) {
1130 if (inode->i_block[EXT2_IND_BLOCK])
1131 ctx->fs_ind_count++;
1132 if (inode->i_block[EXT2_DIND_BLOCK])
1133 ctx->fs_dind_count++;
1134 if (inode->i_block[EXT2_TIND_BLOCK])
1135 ctx->fs_tind_count++;
1137 if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
1138 (inode->i_block[EXT2_IND_BLOCK] ||
1139 inode->i_block[EXT2_DIND_BLOCK] ||
1140 inode->i_block[EXT2_TIND_BLOCK] ||
1141 ext2fs_file_acl_block(fs, inode))) {
1142 inodes_to_process[process_inode_count].ino = ino;
1143 inodes_to_process[process_inode_count].inode = *inode;
1144 process_inode_count++;
1146 check_blocks(ctx, &pctx, block_buf);
1148 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1151 if (process_inode_count >= ctx->process_inode_size) {
1152 process_inodes(ctx, block_buf);
1154 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1158 process_inodes(ctx, block_buf);
1159 ext2fs_close_inode_scan(scan);
1162 * If any extended attribute blocks' reference counts need to
1163 * be adjusted, either up (ctx->refcount_extra), or down
1164 * (ctx->refcount), then fix them.
1166 if (ctx->refcount) {
1167 adjust_extattr_refcount(ctx, ctx->refcount, block_buf, -1);
1168 ea_refcount_free(ctx->refcount);
1171 if (ctx->refcount_extra) {
1172 adjust_extattr_refcount(ctx, ctx->refcount_extra,
1174 ea_refcount_free(ctx->refcount_extra);
1175 ctx->refcount_extra = 0;
1178 if (ctx->invalid_bitmaps)
1179 handle_fs_bad_blocks(ctx);
1181 /* We don't need the block_ea_map any more */
1182 if (ctx->block_ea_map) {
1183 ext2fs_free_block_bitmap(ctx->block_ea_map);
1184 ctx->block_ea_map = 0;
1187 if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
1188 ext2fs_block_bitmap save_bmap;
1190 save_bmap = fs->block_map;
1191 fs->block_map = ctx->block_found_map;
1192 clear_problem_context(&pctx);
1193 pctx.errcode = ext2fs_create_resize_inode(fs);
1195 if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
1197 ctx->flags |= E2F_FLAG_ABORT;
1202 if (!pctx.errcode) {
1203 e2fsck_read_inode(ctx, EXT2_RESIZE_INO, inode,
1205 inode->i_mtime = ctx->now;
1206 e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
1209 fs->block_map = save_bmap;
1210 ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
1213 if (ctx->flags & E2F_FLAG_RESTART) {
1215 * Only the master copy of the superblock and block
1216 * group descriptors are going to be written during a
1217 * restart, so set the superblock to be used to be the
1218 * master superblock.
1220 ctx->use_superblock = 0;
1225 if (ctx->block_dup_map) {
1226 if (ctx->options & E2F_OPT_PREEN) {
1227 clear_problem_context(&pctx);
1228 fix_problem(ctx, PR_1_DUP_BLOCKS_PREENSTOP, &pctx);
1230 e2fsck_pass1_dupblocks(ctx, block_buf);
1232 ext2fs_free_mem(&inodes_to_process);
1234 e2fsck_use_inode_shortcuts(ctx, 0);
1236 ext2fs_free_mem(&block_buf);
1237 ext2fs_free_mem(&inode);
1239 print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
1243 * When the inode_scan routines call this callback at the end of the
1244 * glock group, call process_inodes.
1246 static errcode_t scan_callback(ext2_filsys fs,
1247 ext2_inode_scan scan EXT2FS_ATTR((unused)),
1248 dgrp_t group, void * priv_data)
1250 struct scan_callback_struct *scan_struct;
1253 scan_struct = (struct scan_callback_struct *) priv_data;
1254 ctx = scan_struct->ctx;
1256 process_inodes((e2fsck_t) fs->priv_data, scan_struct->block_buf);
1259 if ((ctx->progress)(ctx, 1, group+1,
1260 ctx->fs->group_desc_count))
1261 return EXT2_ET_CANCEL_REQUESTED;
1267 * Process the inodes in the "inodes to process" list.
1269 static void process_inodes(e2fsck_t ctx, char *block_buf)
1272 struct ext2_inode *old_stashed_inode;
1273 ext2_ino_t old_stashed_ino;
1274 const char *old_operation;
1276 struct problem_context pctx;
1279 printf("begin process_inodes: ");
1281 if (process_inode_count == 0)
1283 old_operation = ehandler_operation(0);
1284 old_stashed_inode = ctx->stashed_inode;
1285 old_stashed_ino = ctx->stashed_ino;
1286 qsort(inodes_to_process, process_inode_count,
1287 sizeof(struct process_inode_block), process_inode_cmp);
1288 clear_problem_context(&pctx);
1289 for (i=0; i < process_inode_count; i++) {
1290 pctx.inode = ctx->stashed_inode = &inodes_to_process[i].inode;
1291 pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
1294 printf("%u ", pctx.ino);
1296 sprintf(buf, _("reading indirect blocks of inode %u"),
1298 ehandler_operation(buf);
1299 check_blocks(ctx, &pctx, block_buf);
1300 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
1303 ctx->stashed_inode = old_stashed_inode;
1304 ctx->stashed_ino = old_stashed_ino;
1305 process_inode_count = 0;
1307 printf("end process inodes\n");
1309 ehandler_operation(old_operation);
1312 static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b)
1314 const struct process_inode_block *ib_a =
1315 (const struct process_inode_block *) a;
1316 const struct process_inode_block *ib_b =
1317 (const struct process_inode_block *) b;
1320 ret = (ib_a->inode.i_block[EXT2_IND_BLOCK] -
1321 ib_b->inode.i_block[EXT2_IND_BLOCK]);
1324 * We only call process_inodes() for non-extent
1325 * inodes, so it's OK to pass NULL to
1326 * ext2fs_file_acl_block() here.
1328 ret = ext2fs_file_acl_block(0, &(ib_a->inode)) -
1329 ext2fs_file_acl_block(0, &(ib_b->inode));
1331 ret = ib_a->ino - ib_b->ino;
1336 * Mark an inode as being bad in some what
1338 static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
1340 struct problem_context pctx;
1342 if (!ctx->inode_bad_map) {
1343 clear_problem_context(&pctx);
1345 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
1346 _("bad inode map"), EXT2FS_BMAP64_RBTREE,
1347 "inode_bad_map", &ctx->inode_bad_map);
1350 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1351 /* Should never get here */
1352 ctx->flags |= E2F_FLAG_ABORT;
1356 ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
1361 * This procedure will allocate the inode "bb" (badblock) map table
1363 static void alloc_bb_map(e2fsck_t ctx)
1365 struct problem_context pctx;
1367 clear_problem_context(&pctx);
1368 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
1369 _("inode in bad block map"), EXT2FS_BMAP64_RBTREE,
1370 "inode_bb_map", &ctx->inode_bb_map);
1373 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1374 /* Should never get here */
1375 ctx->flags |= E2F_FLAG_ABORT;
1381 * This procedure will allocate the inode imagic table
1383 static void alloc_imagic_map(e2fsck_t ctx)
1385 struct problem_context pctx;
1387 clear_problem_context(&pctx);
1388 pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
1389 _("imagic inode map"), EXT2FS_BMAP64_RBTREE,
1390 "inode_imagic_map", &ctx->inode_imagic_map);
1393 fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
1394 /* Should never get here */
1395 ctx->flags |= E2F_FLAG_ABORT;
1401 * Marks a block as in use, setting the dup_map if it's been set
1402 * already. Called by process_block and process_bad_block.
1404 * WARNING: Assumes checks have already been done to make sure block
1405 * is valid. This is true in both process_block and process_bad_block.
1407 static _INLINE_ void mark_block_used(e2fsck_t ctx, blk64_t block)
1409 struct problem_context pctx;
1411 clear_problem_context(&pctx);
1413 if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
1414 if (!ctx->block_dup_map) {
1415 pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
1416 _("multiply claimed block map"),
1417 EXT2FS_BMAP64_RBTREE, "block_dup_map",
1418 &ctx->block_dup_map);
1421 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR,
1423 /* Should never get here */
1424 ctx->flags |= E2F_FLAG_ABORT;
1428 ext2fs_fast_mark_block_bitmap2(ctx->block_dup_map, block);
1430 ext2fs_fast_mark_block_bitmap2(ctx->block_found_map, block);
1434 static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
1437 if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
1438 ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
1441 mark_block_used(ctx, block++);
1445 * Adjust the extended attribute block's reference counts at the end
1446 * of pass 1, either by subtracting out references for EA blocks that
1447 * are still referenced in ctx->refcount, or by adding references for
1448 * EA blocks that had extra references as accounted for in
1449 * ctx->refcount_extra.
1451 static void adjust_extattr_refcount(e2fsck_t ctx, ext2_refcount_t refcount,
1452 char *block_buf, int adjust_sign)
1454 struct ext2_ext_attr_header *header;
1455 struct problem_context pctx;
1456 ext2_filsys fs = ctx->fs;
1461 clear_problem_context(&pctx);
1463 ea_refcount_intr_begin(refcount);
1465 if ((blk = ea_refcount_intr_next(refcount, &count)) == 0)
1468 pctx.errcode = ext2fs_read_ext_attr2(fs, blk, block_buf);
1470 fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
1473 header = (struct ext2_ext_attr_header *) block_buf;
1474 pctx.blkcount = header->h_refcount;
1475 should_be = header->h_refcount + adjust_sign * count;
1476 pctx.num = should_be;
1477 if (fix_problem(ctx, PR_1_EXTATTR_REFCOUNT, &pctx)) {
1478 header->h_refcount = should_be;
1479 pctx.errcode = ext2fs_write_ext_attr2(fs, blk,
1482 fix_problem(ctx, PR_1_EXTATTR_WRITE_ABORT,
1491 * Handle processing the extended attribute blocks
1493 static int check_ext_attr(e2fsck_t ctx, struct problem_context *pctx,
1496 ext2_filsys fs = ctx->fs;
1497 ext2_ino_t ino = pctx->ino;
1498 struct ext2_inode *inode = pctx->inode;
1501 struct ext2_ext_attr_header *header;
1502 struct ext2_ext_attr_entry *entry;
1504 region_t region = 0;
1506 blk = ext2fs_file_acl_block(fs, inode);
1511 * If the Extended attribute flag isn't set, then a non-zero
1512 * file acl means that the inode is corrupted.
1514 * Or if the extended attribute block is an invalid block,
1515 * then the inode is also corrupted.
1517 if (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR) ||
1518 (blk < fs->super->s_first_data_block) ||
1519 (blk >= ext2fs_blocks_count(fs->super))) {
1520 mark_inode_bad(ctx, ino);
1524 /* If ea bitmap hasn't been allocated, create it */
1525 if (!ctx->block_ea_map) {
1526 pctx->errcode = e2fsck_allocate_block_bitmap(fs,
1527 _("ext attr block map"),
1528 EXT2FS_BMAP64_RBTREE, "block_ea_map",
1529 &ctx->block_ea_map);
1530 if (pctx->errcode) {
1532 fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, pctx);
1533 ctx->flags |= E2F_FLAG_ABORT;
1538 /* Create the EA refcount structure if necessary */
1539 if (!ctx->refcount) {
1540 pctx->errcode = ea_refcount_create(0, &ctx->refcount);
1541 if (pctx->errcode) {
1543 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
1544 ctx->flags |= E2F_FLAG_ABORT;
1550 /* Debugging text */
1551 printf("Inode %u has EA block %u\n", ino, blk);
1554 /* Have we seen this EA block before? */
1555 if (ext2fs_fast_test_block_bitmap2(ctx->block_ea_map, blk)) {
1556 if (ea_refcount_decrement(ctx->refcount, blk, 0) == 0)
1558 /* Ooops, this EA was referenced more than it stated */
1559 if (!ctx->refcount_extra) {
1560 pctx->errcode = ea_refcount_create(0,
1561 &ctx->refcount_extra);
1562 if (pctx->errcode) {
1564 fix_problem(ctx, PR_1_ALLOCATE_REFCOUNT, pctx);
1565 ctx->flags |= E2F_FLAG_ABORT;
1569 ea_refcount_increment(ctx->refcount_extra, blk, 0);
1574 * OK, we haven't seen this EA block yet. So we need to
1578 pctx->errcode = ext2fs_read_ext_attr2(fs, blk, block_buf);
1579 if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
1581 header = (struct ext2_ext_attr_header *) block_buf;
1582 pctx->blk = ext2fs_file_acl_block(fs, inode);
1583 if (((ctx->ext_attr_ver == 1) &&
1584 (header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
1585 ((ctx->ext_attr_ver == 2) &&
1586 (header->h_magic != EXT2_EXT_ATTR_MAGIC))) {
1587 if (fix_problem(ctx, PR_1_BAD_EA_BLOCK, pctx))
1591 if (header->h_blocks != 1) {
1592 if (fix_problem(ctx, PR_1_EA_MULTI_BLOCK, pctx))
1596 region = region_create(0, fs->blocksize);
1598 fix_problem(ctx, PR_1_EA_ALLOC_REGION_ABORT, pctx);
1599 ctx->flags |= E2F_FLAG_ABORT;
1602 if (region_allocate(region, 0, sizeof(struct ext2_ext_attr_header))) {
1603 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
1607 entry = (struct ext2_ext_attr_entry *)(header+1);
1608 end = block_buf + fs->blocksize;
1609 while ((char *)entry < end && *(__u32 *)entry) {
1612 if (region_allocate(region, (char *)entry - (char *)header,
1613 EXT2_EXT_ATTR_LEN(entry->e_name_len))) {
1614 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
1618 if ((ctx->ext_attr_ver == 1 &&
1619 (entry->e_name_len == 0 || entry->e_name_index != 0)) ||
1620 (ctx->ext_attr_ver == 2 &&
1621 entry->e_name_index == 0)) {
1622 if (fix_problem(ctx, PR_1_EA_BAD_NAME, pctx))
1626 if (entry->e_value_block != 0) {
1627 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
1630 if (entry->e_value_offs + entry->e_value_size > fs->blocksize) {
1631 if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
1635 if (entry->e_value_size &&
1636 region_allocate(region, entry->e_value_offs,
1637 EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
1638 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
1642 hash = ext2fs_ext_attr_hash_entry(entry, block_buf +
1643 entry->e_value_offs);
1645 if (entry->e_hash != hash) {
1646 pctx->num = entry->e_hash;
1647 if (fix_problem(ctx, PR_1_ATTR_HASH, pctx))
1649 entry->e_hash = hash;
1652 entry = EXT2_EXT_ATTR_NEXT(entry);
1654 if (region_allocate(region, (char *)entry - (char *)header, 4)) {
1655 if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
1658 region_free(region);
1660 count = header->h_refcount - 1;
1662 ea_refcount_store(ctx->refcount, blk, count);
1663 mark_block_used(ctx, blk);
1664 ext2fs_fast_mark_block_bitmap2(ctx->block_ea_map, blk);
1669 region_free(region);
1670 ext2fs_file_acl_block_set(fs, inode, 0);
1671 e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
1675 /* Returns 1 if bad htree, 0 if OK */
1676 static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
1677 ext2_ino_t ino, struct ext2_inode *inode,
1680 struct ext2_dx_root_info *root;
1681 ext2_filsys fs = ctx->fs;
1685 if ((!LINUX_S_ISDIR(inode->i_mode) &&
1686 fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
1687 (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) &&
1688 fix_problem(ctx, PR_1_HTREE_SET, pctx)))
1691 pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
1693 if ((pctx->errcode) ||
1695 (blk < fs->super->s_first_data_block) ||
1696 (blk >= ext2fs_blocks_count(fs->super))) {
1697 if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
1703 retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
1704 if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
1707 /* XXX should check that beginning matches a directory */
1708 root = (struct ext2_dx_root_info *) (block_buf + 24);
1710 if ((root->reserved_zero || root->info_length < 8) &&
1711 fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
1714 pctx->num = root->hash_version;
1715 if ((root->hash_version != EXT2_HASH_LEGACY) &&
1716 (root->hash_version != EXT2_HASH_HALF_MD4) &&
1717 (root->hash_version != EXT2_HASH_TEA) &&
1718 fix_problem(ctx, PR_1_HTREE_HASHV, pctx))
1721 if ((root->unused_flags & EXT2_HASH_FLAG_INCOMPAT) &&
1722 fix_problem(ctx, PR_1_HTREE_INCOMPAT, pctx))
1725 pctx->num = root->indirect_levels;
1726 if ((root->indirect_levels > 1) &&
1727 fix_problem(ctx, PR_1_HTREE_DEPTH, pctx))
1733 void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
1734 struct ext2_inode *inode, int restart_flag,
1738 inode->i_links_count = 0;
1739 ext2fs_icount_store(ctx->inode_link_info, ino, 0);
1740 inode->i_dtime = ctx->now;
1742 ext2fs_unmark_inode_bitmap2(ctx->inode_dir_map, ino);
1743 ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
1744 if (ctx->inode_reg_map)
1745 ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
1746 if (ctx->inode_bad_map)
1747 ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
1750 * If the inode was partially accounted for before processing
1751 * was aborted, we need to restart the pass 1 scan.
1753 ctx->flags |= restart_flag;
1755 if (ino == EXT2_BAD_INO)
1756 memset(inode, 0, sizeof(struct ext2_inode));
1758 e2fsck_write_inode(ctx, ino, inode, source);
1761 static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
1762 struct process_block_struct *pb,
1763 blk64_t start_block,
1764 ext2_extent_handle_t ehandle)
1766 struct ext2fs_extent extent;
1768 e2_blkcnt_t blockcnt;
1770 int is_dir, is_leaf;
1772 struct ext2_extent_info info;
1774 pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
1778 pctx->errcode = ext2fs_extent_get(ehandle, EXT2_EXTENT_FIRST_SIB,
1780 while (!pctx->errcode && info.num_entries-- > 0) {
1781 is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
1782 is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
1785 if (extent.e_pblk == 0 ||
1786 extent.e_pblk < ctx->fs->super->s_first_data_block ||
1787 extent.e_pblk >= ext2fs_blocks_count(ctx->fs->super))
1788 problem = PR_1_EXTENT_BAD_START_BLK;
1789 else if (extent.e_lblk < start_block)
1790 problem = PR_1_OUT_OF_ORDER_EXTENTS;
1791 else if (is_leaf && extent.e_len == 0)
1792 problem = PR_1_EXTENT_LENGTH_ZERO;
1794 (extent.e_pblk + extent.e_len) >
1795 ext2fs_blocks_count(ctx->fs->super))
1796 problem = PR_1_EXTENT_ENDS_BEYOND;
1800 pctx->blk = extent.e_pblk;
1801 pctx->blk2 = extent.e_lblk;
1802 pctx->num = extent.e_len;
1803 if (fix_problem(ctx, problem, pctx)) {
1804 e2fsck_read_bitmaps(ctx);
1806 ext2fs_extent_delete(ehandle, 0);
1807 if (pctx->errcode) {
1808 pctx->str = "ext2fs_extent_delete";
1811 ext2fs_extent_fix_parents(ehandle);
1812 pctx->errcode = ext2fs_extent_get(ehandle,
1813 EXT2_EXTENT_CURRENT,
1815 if (pctx->errcode == EXT2_ET_NO_CURRENT_NODE) {
1827 blk = extent.e_pblk;
1828 lblk = extent.e_lblk;
1829 pctx->errcode = ext2fs_extent_get(ehandle,
1830 EXT2_EXTENT_DOWN, &extent);
1831 if (pctx->errcode) {
1832 pctx->str = "EXT2_EXTENT_DOWN";
1833 problem = PR_1_EXTENT_HEADER_INVALID;
1834 if (pctx->errcode == EXT2_ET_EXTENT_HEADER_BAD)
1835 goto report_problem;
1838 /* The next extent should match this index's logical start */
1839 if (extent.e_lblk != lblk) {
1840 struct ext2_extent_info info;
1842 ext2fs_extent_get_info(ehandle, &info);
1844 pctx->blk2 = extent.e_lblk;
1845 pctx->num = info.curr_level - 1;
1846 problem = PR_1_EXTENT_INDEX_START_INVALID;
1847 if (fix_problem(ctx, problem, pctx))
1848 ext2fs_extent_fix_parents(ehandle);
1850 scan_extent_node(ctx, pctx, pb, extent.e_lblk, ehandle);
1853 pctx->errcode = ext2fs_extent_get(ehandle,
1854 EXT2_EXTENT_UP, &extent);
1855 if (pctx->errcode) {
1856 pctx->str = "EXT2_EXTENT_UP";
1859 mark_block_used(ctx, blk);
1864 if ((pb->previous_block != 0) &&
1865 (pb->previous_block+1 != extent.e_pblk)) {
1866 if (ctx->options & E2F_OPT_FRAGCHECK) {
1871 else if (pb->is_reg)
1874 printf(("%6lu(%c): expecting %6lu "
1876 "phys %6lu log %lu len %lu\n"),
1877 (unsigned long) pctx->ino, type,
1878 (unsigned long) pb->previous_block+1,
1879 (unsigned long) extent.e_pblk,
1880 (unsigned long) extent.e_lblk,
1881 (unsigned long) extent.e_len);
1885 while (is_dir && ++pb->last_db_block < extent.e_lblk) {
1886 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist,
1889 if (pctx->errcode) {
1891 pctx->num = pb->last_db_block;
1892 goto failed_add_dir_block;
1895 if (!ctx->fs->cluster_ratio_bits) {
1896 mark_blocks_used(ctx, extent.e_pblk, extent.e_len);
1897 pb->num_blocks += extent.e_len;
1899 for (blk = extent.e_pblk, blockcnt = extent.e_lblk, i = 0;
1901 blk++, blockcnt++, i++) {
1902 if (ctx->fs->cluster_ratio_bits &&
1903 !(pb->previous_block &&
1904 (EXT2FS_B2C(ctx->fs, blk) ==
1905 EXT2FS_B2C(ctx->fs, pb->previous_block)) &&
1906 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
1907 (blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
1908 mark_block_used(ctx, blk);
1912 pb->previous_block = blk;
1915 pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist, pctx->ino, blk, blockcnt);
1916 if (pctx->errcode) {
1918 pctx->num = blockcnt;
1919 failed_add_dir_block:
1920 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
1921 /* Should never get here */
1922 ctx->flags |= E2F_FLAG_ABORT;
1927 if (is_dir && extent.e_len > 0)
1928 pb->last_db_block = blockcnt - 1;
1929 pb->previous_block = extent.e_pblk + extent.e_len - 1;
1930 start_block = pb->last_block = extent.e_lblk + extent.e_len - 1;
1931 if (is_leaf && !is_dir &&
1932 !(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
1933 pb->last_init_lblock = extent.e_lblk + extent.e_len - 1;
1935 pctx->errcode = ext2fs_extent_get(ehandle,
1936 EXT2_EXTENT_NEXT_SIB,
1939 if (pctx->errcode == EXT2_ET_EXTENT_NO_NEXT)
1943 static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
1944 struct process_block_struct *pb)
1946 struct ext2_extent_info info;
1947 struct ext2_inode *inode = pctx->inode;
1948 ext2_extent_handle_t ehandle;
1949 ext2_filsys fs = ctx->fs;
1950 ext2_ino_t ino = pctx->ino;
1953 pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
1954 if (pctx->errcode) {
1955 if (fix_problem(ctx, PR_1_READ_EXTENT, pctx))
1956 e2fsck_clear_inode(ctx, ino, inode, 0,
1957 "check_blocks_extents");
1962 retval = ext2fs_extent_get_info(ehandle, &info);
1964 if (info.max_depth >= MAX_EXTENT_DEPTH_COUNT)
1965 info.max_depth = MAX_EXTENT_DEPTH_COUNT-1;
1966 ctx->extent_depth_count[info.max_depth]++;
1969 scan_extent_node(ctx, pctx, pb, 0, ehandle);
1970 if (pctx->errcode &&
1971 fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
1973 inode->i_blocks = 0;
1974 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
1975 "check_blocks_extents");
1978 ext2fs_extent_free(ehandle);
1982 * This subroutine is called on each inode to account for all of the
1983 * blocks used by that inode.
1985 static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
1988 ext2_filsys fs = ctx->fs;
1989 struct process_block_struct pb;
1990 ext2_ino_t ino = pctx->ino;
1991 struct ext2_inode *inode = pctx->inode;
1993 int dirty_inode = 0;
2000 pb.last_init_lblock = -1;
2001 pb.last_db_block = -1;
2002 pb.num_illegal_blocks = 0;
2003 pb.suppress = 0; pb.clear = 0;
2006 pb.previous_block = 0;
2007 pb.is_dir = LINUX_S_ISDIR(inode->i_mode);
2008 pb.is_reg = LINUX_S_ISREG(inode->i_mode);
2009 pb.max_blocks = 1 << (31 - fs->super->s_log_block_size);
2016 extent_fs = (ctx->fs->super->s_feature_incompat &
2017 EXT3_FEATURE_INCOMPAT_EXTENTS);
2019 if (inode->i_flags & EXT2_COMPRBLK_FL) {
2020 if (fs->super->s_feature_incompat &
2021 EXT2_FEATURE_INCOMPAT_COMPRESSION)
2024 if (fix_problem(ctx, PR_1_COMPR_SET, pctx)) {
2025 inode->i_flags &= ~EXT2_COMPRBLK_FL;
2031 if (ext2fs_file_acl_block(fs, inode) &&
2032 check_ext_attr(ctx, pctx, block_buf)) {
2033 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2038 if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
2039 if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
2040 check_blocks_extents(ctx, pctx, &pb);
2042 pctx->errcode = ext2fs_block_iterate3(fs, ino,
2043 pb.is_dir ? BLOCK_FLAG_HOLE : 0,
2044 block_buf, process_block, &pb);
2046 * We do not have uninitialized extents in non extent
2049 pb.last_init_lblock = pb.last_block;
2052 end_problem_latch(ctx, PR_LATCH_BLOCK);
2053 end_problem_latch(ctx, PR_LATCH_TOOBIG);
2054 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2057 fix_problem(ctx, PR_1_BLOCK_ITERATE, pctx);
2059 if (pb.fragmented && pb.num_blocks < fs->super->s_blocks_per_group) {
2060 if (LINUX_S_ISDIR(inode->i_mode))
2061 ctx->fs_fragmented_dir++;
2063 ctx->fs_fragmented++;
2067 e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
2072 if (inode->i_flags & EXT2_INDEX_FL) {
2073 if (handle_htree(ctx, pctx, ino, inode, block_buf)) {
2074 inode->i_flags &= ~EXT2_INDEX_FL;
2078 e2fsck_add_dx_dir(ctx, ino, pb.last_block+1);
2083 if (!pb.num_blocks && pb.is_dir) {
2084 if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
2085 e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
2086 ctx->fs_directory_count--;
2091 if (ino == EXT2_ROOT_INO || ino >= EXT2_FIRST_INODE(ctx->fs->super)) {
2092 quota_data_add(ctx->qctx, inode, ino,
2093 pb.num_blocks * fs->blocksize);
2094 quota_data_inodes(ctx->qctx, inode, ino, +1);
2097 if (!(fs->super->s_feature_ro_compat &
2098 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) ||
2099 !(inode->i_flags & EXT4_HUGE_FILE_FL))
2100 pb.num_blocks *= (fs->blocksize / 512);
2101 pb.num_blocks *= EXT2FS_CLUSTER_RATIO(fs);
2103 printf("inode %u, i_size = %u, last_block = %lld, i_blocks=%llu, num_blocks = %llu\n",
2104 ino, inode->i_size, pb.last_block, ext2fs_inode_i_blocks(fs, inode),
2108 int nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
2109 if (inode->i_size & (fs->blocksize - 1))
2111 else if (nblock > (pb.last_block + 1))
2113 else if (nblock < (pb.last_block + 1)) {
2114 if (((pb.last_block + 1) - nblock) >
2115 fs->super->s_prealloc_dir_blocks)
2119 e2_blkcnt_t blkpg = ctx->blocks_per_page;
2121 size = EXT2_I_SIZE(inode);
2122 if ((pb.last_init_lblock >= 0) &&
2123 /* allow allocated blocks to end of PAGE_SIZE */
2124 (size < (__u64)pb.last_init_lblock * fs->blocksize) &&
2125 (pb.last_init_lblock / blkpg * blkpg != pb.last_init_lblock ||
2126 size < (__u64)(pb.last_init_lblock & ~(blkpg-1)) *
2129 else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
2130 size > ext2_max_sizes[fs->super->s_log_block_size])
2131 /* too big for a direct/indirect-mapped file */
2133 else if ((extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
2135 ((1ULL << (32 + EXT2_BLOCK_SIZE_BITS(fs->super))) - 1))
2136 /* too big for an extent-based file - 32bit ee_block */
2139 /* i_size for symlinks is checked elsewhere */
2140 if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
2141 pctx->num = (pb.last_block+1) * fs->blocksize;
2142 pctx->group = bad_size;
2143 if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
2144 inode->i_size = pctx->num;
2145 if (!LINUX_S_ISDIR(inode->i_mode))
2146 inode->i_size_high = pctx->num >> 32;
2151 if (LINUX_S_ISREG(inode->i_mode) && EXT2_I_SIZE(inode) >= 0x80000000UL)
2153 if ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
2154 ((fs->super->s_feature_ro_compat &
2155 EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
2156 (inode->i_flags & EXT4_HUGE_FILE_FL) &&
2157 (inode->osd2.linux2.l_i_blocks_hi != 0))) {
2158 pctx->num = pb.num_blocks;
2159 if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
2160 inode->i_blocks = pb.num_blocks;
2161 inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
2167 if (ctx->dirs_to_hash && pb.is_dir &&
2168 !(inode->i_flags & EXT2_INDEX_FL) &&
2169 ((inode->i_size / fs->blocksize) >= 3))
2170 ext2fs_u32_list_add(ctx->dirs_to_hash, ino);
2174 e2fsck_write_inode(ctx, ino, inode, "check_blocks");
2179 * Helper function called by process block when an illegal block is
2180 * found. It returns a description about why the block is illegal
2182 static char *describe_illegal_block(ext2_filsys fs, blk64_t block)
2186 static char problem[80];
2188 super = fs->super->s_first_data_block;
2189 strcpy(problem, "PROGRAMMING ERROR: Unknown reason for illegal block");
2190 if (block < super) {
2191 sprintf(problem, "< FIRSTBLOCK (%u)", super);
2193 } else if (block >= ext2fs_blocks_count(fs->super)) {
2194 sprintf(problem, "> BLOCKS (%u)", ext2fs_blocks_count(fs->super));
2197 for (i = 0; i < fs->group_desc_count; i++) {
2198 if (block == super) {
2199 sprintf(problem, "is the superblock in group %d", i);
2202 if (block > super &&
2203 block <= (super + fs->desc_blocks)) {
2204 sprintf(problem, "is in the group descriptors "
2208 if (block == ext2fs_block_bitmap_loc(fs, i)) {
2209 sprintf(problem, "is the block bitmap of group %d", i);
2212 if (block == ext2fs_inode_bitmap_loc(fs, i)) {
2213 sprintf(problem, "is the inode bitmap of group %d", i);
2216 if (block >= ext2fs_inode_table_loc(fs, i) &&
2217 (block < ext2fs_inode_table_loc(fs, i)
2218 + fs->inode_blocks_per_group)) {
2219 sprintf(problem, "is in the inode table of group %d",
2223 super += fs->super->s_blocks_per_group;
2230 * This is a helper function for check_blocks().
2232 static int process_block(ext2_filsys fs,
2234 e2_blkcnt_t blockcnt,
2235 blk64_t ref_block EXT2FS_ATTR((unused)),
2236 int ref_offset EXT2FS_ATTR((unused)),
2239 struct process_block_struct *p;
2240 struct problem_context *pctx;
2241 blk64_t blk = *block_nr;
2246 p = (struct process_block_struct *) priv_data;
2250 if (p->compressed && (blk == EXT2FS_COMPRESSED_BLKADDR)) {
2251 /* todo: Check that the comprblk_fl is high, that the
2252 blkaddr pattern looks right (all non-holes up to
2253 first EXT2FS_COMPRESSED_BLKADDR, then all
2254 EXT2FS_COMPRESSED_BLKADDR up to end of cluster),
2255 that the feature_incompat bit is high, and that the
2256 inode is a regular file. If we're doing a "full
2257 check" (a concept introduced to e2fsck by e2compr,
2258 meaning that we look at data blocks as well as
2259 metadata) then call some library routine that
2260 checks the compressed data. I'll have to think
2261 about this, because one particularly important
2262 problem to be able to fix is to recalculate the
2263 cluster size if necessary. I think that perhaps
2264 we'd better do most/all e2compr-specific checks
2265 separately, after the non-e2compr checks. If not
2266 doing a full check, it may be useful to test that
2267 the personality is linux; e.g. if it isn't then
2268 perhaps this really is just an illegal block. */
2276 printf("Process_block, inode %lu, block %u, #%d\n", p->ino, blk,
2281 * Simplistic fragmentation check. We merely require that the
2282 * file be contiguous. (Which can never be true for really
2283 * big files that are greater than a block group.)
2285 if (!HOLE_BLKADDR(p->previous_block) && p->ino != EXT2_RESIZE_INO) {
2286 if (p->previous_block+1 != blk) {
2287 if (ctx->options & E2F_OPT_FRAGCHECK) {
2295 printf(_("%6lu(%c): expecting %6lu "
2296 "got phys %6lu (blkcnt %lld)\n"),
2297 (unsigned long) pctx->ino, type,
2298 (unsigned long) p->previous_block+1,
2299 (unsigned long) blk,
2306 if (p->is_dir && blockcnt > (1 << (21 - fs->super->s_log_block_size)))
2307 problem = PR_1_TOOBIG_DIR;
2308 if (p->is_reg && p->num_blocks+1 >= p->max_blocks)
2309 problem = PR_1_TOOBIG_REG;
2310 if (!p->is_dir && !p->is_reg && blockcnt > 0)
2311 problem = PR_1_TOOBIG_SYMLINK;
2313 if (blk < fs->super->s_first_data_block ||
2314 blk >= ext2fs_blocks_count(fs->super))
2315 problem = PR_1_ILLEGAL_BLOCK_NUM;
2318 p->num_illegal_blocks++;
2319 if (!p->suppress && (p->num_illegal_blocks % 12) == 0) {
2320 if (fix_problem(ctx, PR_1_TOO_MANY_BAD_BLOCKS, pctx)) {
2324 if (fix_problem(ctx, PR_1_SUPPRESS_MESSAGES, pctx)) {
2326 set_latch_flags(PR_LATCH_BLOCK,
2331 pctx->blkcount = blockcnt;
2332 if (fix_problem(ctx, problem, pctx)) {
2333 blk = *block_nr = 0;
2334 ret_code = BLOCK_CHANGED;
2340 if (p->ino == EXT2_RESIZE_INO) {
2342 * The resize inode has already be sanity checked
2343 * during pass #0 (the superblock checks). All we
2344 * have to do is mark the double indirect block as
2345 * being in use; all of the other blocks are handled
2346 * by mark_table_blocks()).
2348 if (blockcnt == BLOCK_COUNT_DIND)
2349 mark_block_used(ctx, blk);
2351 } else if (!(ctx->fs->cluster_ratio_bits &&
2352 p->previous_block &&
2353 (EXT2FS_B2C(ctx->fs, blk) ==
2354 EXT2FS_B2C(ctx->fs, p->previous_block)) &&
2355 (blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
2356 (blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
2357 mark_block_used(ctx, blk);
2361 p->last_block = blockcnt;
2362 p->previous_block = blk;
2364 if (p->is_dir && (blockcnt >= 0)) {
2365 while (++p->last_db_block < blockcnt) {
2366 pctx->errcode = ext2fs_add_dir_block2(fs->dblist,
2369 if (pctx->errcode) {
2371 pctx->num = p->last_db_block;
2372 goto failed_add_dir_block;
2375 pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino,
2377 if (pctx->errcode) {
2379 pctx->num = blockcnt;
2380 failed_add_dir_block:
2381 fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
2382 /* Should never get here */
2383 ctx->flags |= E2F_FLAG_ABORT;
2390 static int process_bad_block(ext2_filsys fs,
2392 e2_blkcnt_t blockcnt,
2393 blk64_t ref_block EXT2FS_ATTR((unused)),
2394 int ref_offset EXT2FS_ATTR((unused)),
2397 struct process_block_struct *p;
2398 blk64_t blk = *block_nr;
2399 blk64_t first_block;
2401 struct problem_context *pctx;
2405 * Note: This function processes blocks for the bad blocks
2406 * inode, which is never compressed. So we don't use HOLE_BLKADDR().
2412 p = (struct process_block_struct *) priv_data;
2416 pctx->ino = EXT2_BAD_INO;
2418 pctx->blkcount = blockcnt;
2420 if ((blk < fs->super->s_first_data_block) ||
2421 (blk >= ext2fs_blocks_count(fs->super))) {
2422 if (fix_problem(ctx, PR_1_BB_ILLEGAL_BLOCK_NUM, pctx)) {
2424 return BLOCK_CHANGED;
2430 if (ext2fs_test_block_bitmap2(p->fs_meta_blocks, blk)) {
2432 if (fix_problem(ctx, PR_1_BB_FS_BLOCK, pctx)) {
2434 return BLOCK_CHANGED;
2436 } else if (ext2fs_test_block_bitmap2(ctx->block_found_map,
2439 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK,
2442 return BLOCK_CHANGED;
2444 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2447 mark_block_used(ctx, blk);
2451 printf ("DEBUG: Marking %u as bad.\n", blk);
2453 ctx->fs_badblocks_count++;
2455 * If the block is not used, then mark it as used and return.
2456 * If it is already marked as found, this must mean that
2457 * there's an overlap between the filesystem table blocks
2458 * (bitmaps and inode table) and the bad block list.
2460 if (!ext2fs_test_block_bitmap2(ctx->block_found_map, blk)) {
2461 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
2465 * Try to find the where the filesystem block was used...
2467 first_block = fs->super->s_first_data_block;
2469 for (i = 0; i < fs->group_desc_count; i++ ) {
2472 if (!ext2fs_bg_has_super(fs, i))
2474 if (blk == first_block) {
2476 if (fix_problem(ctx,
2477 PR_1_BAD_PRIMARY_SUPERBLOCK,
2480 return BLOCK_CHANGED;
2484 fix_problem(ctx, PR_1_BAD_SUPERBLOCK, pctx);
2487 if ((blk > first_block) &&
2488 (blk <= first_block + fs->desc_blocks)) {
2490 pctx->blk = *block_nr;
2491 if (fix_problem(ctx,
2492 PR_1_BAD_PRIMARY_GROUP_DESCRIPTOR, pctx)) {
2494 return BLOCK_CHANGED;
2498 fix_problem(ctx, PR_1_BAD_GROUP_DESCRIPTORS, pctx);
2502 if (blk == ext2fs_block_bitmap_loc(fs, i)) {
2503 if (fix_problem(ctx, PR_1_BB_BAD_BLOCK, pctx)) {
2504 ctx->invalid_block_bitmap_flag[i]++;
2505 ctx->invalid_bitmaps++;
2509 if (blk == ext2fs_inode_bitmap_loc(fs, i)) {
2510 if (fix_problem(ctx, PR_1_IB_BAD_BLOCK, pctx)) {
2511 ctx->invalid_inode_bitmap_flag[i]++;
2512 ctx->invalid_bitmaps++;
2516 if ((blk >= ext2fs_inode_table_loc(fs, i)) &&
2517 (blk < (ext2fs_inode_table_loc(fs, i) +
2518 fs->inode_blocks_per_group))) {
2520 * If there are bad blocks in the inode table,
2521 * the inode scan code will try to do
2522 * something reasonable automatically.
2526 first_block += fs->super->s_blocks_per_group;
2529 * If we've gotten to this point, then the only
2530 * possibility is that the bad block inode meta data
2531 * is using a bad block.
2533 if ((blk == p->inode->i_block[EXT2_IND_BLOCK]) ||
2534 (blk == p->inode->i_block[EXT2_DIND_BLOCK]) ||
2535 (blk == p->inode->i_block[EXT2_TIND_BLOCK])) {
2537 if (fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK, pctx)) {
2539 return BLOCK_CHANGED;
2541 if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
2548 /* Warn user that the block wasn't claimed */
2549 fix_problem(ctx, PR_1_PROGERR_CLAIMED_BLOCK, pctx);
2554 static void new_table_block(e2fsck_t ctx, blk_t first_block, int group,
2555 const char *name, int num, blk64_t *new_block)
2557 ext2_filsys fs = ctx->fs;
2559 blk64_t old_block = *new_block;
2561 int i, is_flexbg, flexbg, flexbg_size;
2563 struct problem_context pctx;
2565 clear_problem_context(&pctx);
2568 pctx.blk = old_block;
2572 * For flex_bg filesystems, first try to allocate the metadata
2573 * within the flex_bg, and if that fails then try finding the
2574 * space anywhere in the filesystem.
2576 is_flexbg = EXT2_HAS_INCOMPAT_FEATURE(fs->super,
2577 EXT4_FEATURE_INCOMPAT_FLEX_BG);
2579 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
2580 flexbg = group / flexbg_size;
2581 first_block = ext2fs_group_first_block2(fs,
2582 flexbg_size * flexbg);
2583 last_grp = group | (flexbg_size - 1);
2584 if (last_grp > fs->group_desc_count)
2585 last_grp = fs->group_desc_count;
2586 last_block = ext2fs_group_last_block2(fs, last_grp);
2588 last_block = ext2fs_group_last_block2(fs, group);
2589 pctx.errcode = ext2fs_get_free_blocks2(fs, first_block, last_block,
2590 num, ctx->block_found_map,
2592 if (is_flexbg && (pctx.errcode == EXT2_ET_BLOCK_ALLOC_FAIL))
2593 pctx.errcode = ext2fs_get_free_blocks2(fs,
2594 fs->super->s_first_data_block,
2595 ext2fs_blocks_count(fs->super),
2596 num, ctx->block_found_map, new_block);
2599 fix_problem(ctx, PR_1_RELOC_BLOCK_ALLOCATE, &pctx);
2600 ext2fs_unmark_valid(fs);
2601 ctx->flags |= E2F_FLAG_ABORT;
2604 pctx.errcode = ext2fs_get_mem(fs->blocksize, &buf);
2606 fix_problem(ctx, PR_1_RELOC_MEMORY_ALLOCATE, &pctx);
2607 ext2fs_unmark_valid(fs);
2608 ctx->flags |= E2F_FLAG_ABORT;
2611 ext2fs_mark_super_dirty(fs);
2612 fs->flags &= ~EXT2_FLAG_MASTER_SB_ONLY;
2613 pctx.blk2 = *new_block;
2614 fix_problem(ctx, (old_block ? PR_1_RELOC_FROM_TO :
2615 PR_1_RELOC_TO), &pctx);
2617 for (i = 0; i < num; i++) {
2619 ext2fs_mark_block_bitmap2(ctx->block_found_map, (*new_block)+i);
2621 pctx.errcode = io_channel_read_blk64(fs->io,
2622 old_block + i, 1, buf);
2624 fix_problem(ctx, PR_1_RELOC_READ_ERR, &pctx);
2626 memset(buf, 0, fs->blocksize);
2628 pctx.blk = (*new_block) + i;
2629 pctx.errcode = io_channel_write_blk64(fs->io, pctx.blk,
2632 fix_problem(ctx, PR_1_RELOC_WRITE_ERR, &pctx);
2634 ext2fs_free_mem(&buf);
2638 * This routine gets called at the end of pass 1 if bad blocks are
2639 * detected in the superblock, group descriptors, inode_bitmaps, or
2640 * block bitmaps. At this point, all of the blocks have been mapped
2641 * out, so we can try to allocate new block(s) to replace the bad
2644 static void handle_fs_bad_blocks(e2fsck_t ctx)
2646 ext2_filsys fs = ctx->fs;
2648 blk64_t first_block;
2651 for (i = 0; i < fs->group_desc_count; i++) {
2652 first_block = ext2fs_group_first_block2(fs, i);
2654 if (ctx->invalid_block_bitmap_flag[i]) {
2655 new_blk = ext2fs_block_bitmap_loc(fs, i);
2656 new_table_block(ctx, first_block, i, _("block bitmap"),
2658 ext2fs_block_bitmap_loc_set(fs, i, new_blk);
2660 if (ctx->invalid_inode_bitmap_flag[i]) {
2661 new_blk = ext2fs_inode_bitmap_loc(fs, i);
2662 new_table_block(ctx, first_block, i, _("inode bitmap"),
2664 ext2fs_inode_bitmap_loc_set(fs, i, new_blk);
2666 if (ctx->invalid_inode_table_flag[i]) {
2667 new_blk = ext2fs_inode_table_loc(fs, i);
2668 new_table_block(ctx, first_block, i, _("inode table"),
2669 fs->inode_blocks_per_group,
2671 ext2fs_inode_table_loc_set(fs, i, new_blk);
2672 ctx->flags |= E2F_FLAG_RESTART;
2675 ctx->invalid_bitmaps = 0;
2679 * This routine marks all blocks which are used by the superblock,
2680 * group descriptors, inode bitmaps, and block bitmaps.
2682 static void mark_table_blocks(e2fsck_t ctx)
2684 ext2_filsys fs = ctx->fs;
2688 struct problem_context pctx;
2690 clear_problem_context(&pctx);
2692 for (i = 0; i < fs->group_desc_count; i++) {
2695 ext2fs_reserve_super_and_bgd(fs, i, ctx->block_found_map);
2698 * Mark the blocks used for the inode table
2700 if (ext2fs_inode_table_loc(fs, i)) {
2701 for (j = 0, b = ext2fs_inode_table_loc(fs, i);
2702 j < fs->inode_blocks_per_group;
2704 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
2707 if (!ctx->invalid_inode_table_flag[i] &&
2709 PR_1_ITABLE_CONFLICT, &pctx)) {
2710 ctx->invalid_inode_table_flag[i]++;
2711 ctx->invalid_bitmaps++;
2714 ext2fs_mark_block_bitmap2(ctx->block_found_map,
2721 * Mark block used for the block bitmap
2723 if (ext2fs_block_bitmap_loc(fs, i)) {
2724 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
2725 ext2fs_block_bitmap_loc(fs, i))) {
2726 pctx.blk = ext2fs_block_bitmap_loc(fs, i);
2727 if (fix_problem(ctx, PR_1_BB_CONFLICT, &pctx)) {
2728 ctx->invalid_block_bitmap_flag[i]++;
2729 ctx->invalid_bitmaps++;
2732 ext2fs_mark_block_bitmap2(ctx->block_found_map,
2733 ext2fs_block_bitmap_loc(fs, i));
2738 * Mark block used for the inode bitmap
2740 if (ext2fs_inode_bitmap_loc(fs, i)) {
2741 if (ext2fs_test_block_bitmap2(ctx->block_found_map,
2742 ext2fs_inode_bitmap_loc(fs, i))) {
2743 pctx.blk = ext2fs_inode_bitmap_loc(fs, i);
2744 if (fix_problem(ctx, PR_1_IB_CONFLICT, &pctx)) {
2745 ctx->invalid_inode_bitmap_flag[i]++;
2746 ctx->invalid_bitmaps++;
2749 ext2fs_mark_block_bitmap2(ctx->block_found_map,
2750 ext2fs_inode_bitmap_loc(fs, i));
2757 * Thes subroutines short circuits ext2fs_get_blocks and
2758 * ext2fs_check_directory; we use them since we already have the inode
2759 * structure, so there's no point in letting the ext2fs library read
2762 static errcode_t pass1_get_blocks(ext2_filsys fs, ext2_ino_t ino,
2765 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
2768 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
2769 return EXT2_ET_CALLBACK_NOTHANDLED;
2771 for (i=0; i < EXT2_N_BLOCKS; i++)
2772 blocks[i] = ctx->stashed_inode->i_block[i];
2776 static errcode_t pass1_read_inode(ext2_filsys fs, ext2_ino_t ino,
2777 struct ext2_inode *inode)
2779 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
2781 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
2782 return EXT2_ET_CALLBACK_NOTHANDLED;
2783 *inode = *ctx->stashed_inode;
2787 static errcode_t pass1_write_inode(ext2_filsys fs, ext2_ino_t ino,
2788 struct ext2_inode *inode)
2790 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
2792 if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
2793 (inode != ctx->stashed_inode))
2794 *ctx->stashed_inode = *inode;
2795 return EXT2_ET_CALLBACK_NOTHANDLED;
2798 static errcode_t pass1_check_directory(ext2_filsys fs, ext2_ino_t ino)
2800 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
2802 if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
2803 return EXT2_ET_CALLBACK_NOTHANDLED;
2805 if (!LINUX_S_ISDIR(ctx->stashed_inode->i_mode))
2806 return EXT2_ET_NO_DIRECTORY;
2810 static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
2813 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
2817 if (ctx->block_found_map) {
2818 retval = ext2fs_new_block2(fs, goal, ctx->block_found_map,
2822 if (fs->block_map) {
2823 ext2fs_mark_block_bitmap2(fs->block_map, new_block);
2824 ext2fs_mark_bb_dirty(fs);
2827 if (!fs->block_map) {
2828 retval = ext2fs_read_block_bitmap(fs);
2833 retval = ext2fs_new_block2(fs, goal, 0, &new_block);
2842 static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
2844 e2fsck_t ctx = (e2fsck_t) fs->priv_data;
2846 if (ctx->block_found_map) {
2848 ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
2850 ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
2854 void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
2856 ext2_filsys fs = ctx->fs;
2858 if (use_shortcuts) {
2859 fs->get_blocks = pass1_get_blocks;
2860 fs->check_directory = pass1_check_directory;
2861 fs->read_inode = pass1_read_inode;
2862 fs->write_inode = pass1_write_inode;
2863 ctx->stashed_ino = 0;
2864 ext2fs_set_alloc_block_callback(fs, e2fsck_get_alloc_block,
2866 ext2fs_set_block_alloc_stats_callback(fs,
2867 e2fsck_block_alloc_stats,
2871 fs->check_directory = 0;
2873 fs->write_inode = 0;