*
* Pass 1 is designed to stash away enough information so that the
* other passes should not need to read in the inode information
- * during the normal course of a filesystem check. (Althogh if an
+ * during the normal course of a filesystem check. (Although if an
* inconsistency is detected, other passes may need to read in an
* inode to fix it.)
*
int i;
/*
- * If the index flag is set, then this is a bogus
+ * If the index or extents flag is set, then this is a bogus
* device/fifo/socket
*/
- if (inode->i_flags & EXT2_INDEX_FL)
+ if (inode->i_flags & (EXT2_INDEX_FL | EXT4_EXTENTS_FL))
return 0;
/*
int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode, char *buf)
{
+ unsigned int buflen;
unsigned int len;
- int i;
- ext2_extent_handle_t handle;
- struct ext2_extent_info info;
- struct ext2fs_extent extent;
if ((inode->i_size_high || inode->i_size == 0) ||
(inode->i_flags & EXT2_INDEX_FL))
return 0;
- if (inode->i_flags & EXT4_EXTENTS_FL) {
- if (inode->i_flags & EXT4_INLINE_DATA_FL)
- return 0;
- if (inode->i_size > fs->blocksize)
- return 0;
- if (ext2fs_extent_open2(fs, ino, inode, &handle))
- return 0;
- i = 0;
- if (ext2fs_extent_get_info(handle, &info) ||
- (info.num_entries != 1) ||
- (info.max_depth != 0))
- goto exit_extent;
- if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent) ||
- (extent.e_lblk != 0) ||
- (extent.e_len != 1) ||
- (extent.e_pblk < fs->super->s_first_data_block) ||
- (extent.e_pblk >= ext2fs_blocks_count(fs->super)))
- goto exit_extent;
- i = 1;
- exit_extent:
- ext2fs_extent_free(handle);
- return i;
- }
-
if (inode->i_flags & EXT4_INLINE_DATA_FL) {
size_t inline_size;
+ if (inode->i_flags & EXT4_EXTENTS_FL)
+ return 0;
if (ext2fs_inline_data_size(fs, ino, &inline_size))
return 0;
if (inode->i_size != inline_size)
}
if (ext2fs_is_fast_symlink(inode)) {
- if (inode->i_size >= sizeof(inode->i_block))
- return 0;
-
- len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
- if (len == sizeof(inode->i_block))
+ if (inode->i_flags & EXT4_EXTENTS_FL)
return 0;
+ buf = (char *)inode->i_block;
+ buflen = sizeof(inode->i_block);
} else {
- if ((inode->i_size >= fs->blocksize) ||
- (inode->i_block[0] < fs->super->s_first_data_block) ||
- (inode->i_block[0] >= ext2fs_blocks_count(fs->super)))
- return 0;
+ ext2_extent_handle_t handle;
+ struct ext2_extent_info info;
+ struct ext2fs_extent extent;
+ blk64_t blk;
+ int i;
- for (i = 1; i < EXT2_N_BLOCKS; i++)
- if (inode->i_block[i])
+ if (inode->i_flags & EXT4_EXTENTS_FL) {
+ if (ext2fs_extent_open2(fs, ino, inode, &handle))
+ return 0;
+ if (ext2fs_extent_get_info(handle, &info) ||
+ (info.num_entries != 1) ||
+ (info.max_depth != 0)) {
+ ext2fs_extent_free(handle);
+ return 0;
+ }
+ if (ext2fs_extent_get(handle, EXT2_EXTENT_ROOT,
+ &extent) ||
+ (extent.e_lblk != 0) ||
+ (extent.e_len != 1)) {
+ ext2fs_extent_free(handle);
return 0;
+ }
+ blk = extent.e_pblk;
+ ext2fs_extent_free(handle);
+ } else {
+ blk = inode->i_block[0];
+
+ for (i = 1; i < EXT2_N_BLOCKS; i++)
+ if (inode->i_block[i])
+ return 0;
+ }
- if (io_channel_read_blk64(fs->io, inode->i_block[0], 1, buf))
+ if (blk < fs->super->s_first_data_block ||
+ blk >= ext2fs_blocks_count(fs->super))
return 0;
- if (inode->i_flags & EXT4_ENCRYPT_FL) {
- len = ext2fs_le32_to_cpu(*((__u32 *)buf)) + 4;
- } else {
- len = strnlen(buf, fs->blocksize);
- }
- if (len == fs->blocksize)
+ if (io_channel_read_blk64(fs->io, blk, 1, buf))
return 0;
+
+ buflen = fs->blocksize;
}
+
+ if (inode->i_flags & EXT4_ENCRYPT_FL)
+ len = ext2fs_le16_to_cpu(*(__u16 *)buf) + 2;
+ else
+ len = strnlen(buf, buflen);
+
+ if (len >= buflen)
+ return 0;
+
if (len != inode->i_size)
- if ((inode->i_flags & EXT4_ENCRYPT_FL) == 0)
- return 0;
+ return 0;
return 1;
}
case EXT2_ET_NO_INLINE_DATA:
case EXT2_ET_EXT_ATTR_CSUM_INVALID:
case EXT2_ET_EA_BAD_VALUE_OFFSET:
+ case EXT2_ET_EA_INODE_CORRUPTED:
/* broken EA or no system.data EA; truncate */
if (fix_problem(ctx, PR_1_INLINE_DATA_NO_ATTR,
&pctx)) {
/*
* Make sure the root inode is a directory; if
* not, offer to clear it. It will be
- * regnerated in pass #3.
+ * regenerated in pass #3.
*/
if (!LINUX_S_ISDIR(inode->i_mode)) {
if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx))
clear_problem_context(&pctx);
if (ext2fs_fast_test_block_bitmap2(ctx->block_found_map, block)) {
+ if (ext2fs_has_feature_shared_blocks(ctx->fs->super) &&
+ !(ctx->options & E2F_OPT_UNSHARE_BLOCKS)) {
+ return;
+ }
if (!ctx->block_dup_map) {
pctx.errcode = e2fsck_allocate_block_bitmap(ctx->fs,
_("multiply claimed block map"),
size = EXT2_I_SIZE(inode);
if ((pb.last_init_lblock >= 0) &&
- /* allow allocated blocks to end of PAGE_SIZE */
+ /* if size is smaller than expected by the block count,
+ * allow allocated blocks to end of PAGE_SIZE.
+ * last_init_lblock is the last in-use block, so it is
+ * the minimum expected file size, but +1 because it is
+ * the base-zero block number and not the block count. */
(size < (__u64)pb.last_init_lblock * fs->blocksize) &&
- (pb.last_init_lblock / blkpg * blkpg != pb.last_init_lblock ||
- size < (__u64)(pb.last_init_lblock & ~(blkpg-1)) *
+ ((pb.last_init_lblock + 1) / blkpg * blkpg !=
+ (pb.last_init_lblock + 1) ||
+ size < (__u64)(pb.last_init_lblock & ~(blkpg - 1)) *
fs->blocksize))
bad_size = 3;
else if (!(extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) &&
}
/*
- * Thes subroutines short circuits ext2fs_get_blocks and
+ * These subroutines short circuits ext2fs_get_blocks and
* ext2fs_check_directory; we use them since we already have the inode
* structure, so there's no point in letting the ext2fs library read
* the inode again.
projects / thirdparty / e2fsprogs.git / blobdiff