* - A bitmap of which inodes are in use. (inode_used_map)
* - A bitmap of which inodes are directories. (inode_dir_map)
* - A bitmap of which inodes are regular files. (inode_reg_map)
- * - A bitmap of which inodes have bad fields. (inode_bad_map)
+ * - An icount mechanism is used to keep track of
+ * inodes with bad fields and its badness (ctx->inode_badness)
* - A bitmap of which inodes are in bad blocks. (inode_bb_map)
* - A bitmap of which inodes are imagic inodes. (inode_imagic_map)
+ * - A bitmap of which inodes need to be expanded (expand_eisize_map)
* - A bitmap of which blocks are in use. (block_found_map)
* - A bitmap of which blocks are in use by two inodes (block_dup_map)
* - The data blocks of the directory inodes. (dir_map)
+ * - A bitmap of EA inodes. (inode_ea_map)
*
* Pass 1 is designed to stash away enough information so that the
* other passes should not need to read in the inode information
static void mark_table_blocks(e2fsck_t ctx);
static void alloc_bb_map(e2fsck_t ctx);
static void alloc_imagic_map(e2fsck_t ctx);
-static void mark_inode_bad(e2fsck_t ctx, ino_t ino);
static void handle_fs_bad_blocks(e2fsck_t ctx);
static void process_inodes(e2fsck_t ctx, char *block_buf);
static EXT2_QSORT_TYPE process_inode_cmp(const void *a, const void *b);
struct process_block_struct {
ext2_ino_t ino;
unsigned is_dir:1, is_reg:1, clear:1, suppress:1,
- fragmented:1, compressed:1, bbcheck:1;
+ fragmented:1, compressed:1, bbcheck:1,
+ inode_modified:1;
blk64_t num_blocks;
blk64_t max_blocks;
e2_blkcnt_t last_block;
struct process_inode_block {
ext2_ino_t ino;
- struct ext2_inode inode;
+ struct ext2_inode_large inode;
};
struct scan_callback_struct {
* If the index 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;
/*
* Check to make sure a symlink inode is real. Returns 1 if the symlink
* checks out, 0 if not.
*/
-int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
- struct ext2_inode *inode, char *buf)
+static int check_symlink(e2fsck_t ctx, struct problem_context *pctx,
+ ext2_ino_t ino, struct ext2_inode *inode, char *buf)
{
- unsigned int len;
- int i;
- blk64_t blocks;
- ext2_extent_handle_t handle;
- struct ext2_extent_info info;
- struct ext2fs_extent extent;
+ blk64_t block, num_blocks;
+ unsigned len, limit;
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_size > fs->blocksize)
+ num_blocks = ext2fs_inode_data_blocks2(ctx->fs, inode);
+ if (inode->i_flags & EXT4_EXTENTS_FL) { /* in extent-mapped block */
+ struct ext2_extent_info info;
+ ext2_extent_handle_t handle;
+ struct ext2fs_extent extent;
+
+ if (inode->i_size > ctx->fs->blocksize)
return 0;
- if (ext2fs_extent_open2(fs, ino, inode, &handle))
+ if (ext2fs_extent_open2(ctx->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) ||
+ (info.max_depth != 0) ||
+
+ 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:
+ (extent.e_len != 1)) {
+ ext2fs_extent_free(handle);
+ return 0;
+ }
+
+ block = extent.e_pblk;
+ limit = ctx->fs->blocksize;
+
ext2fs_extent_free(handle);
- return i;
- }
+ } else if (num_blocks > 0) { /* in block-mapped block */
+ int i;
- blocks = ext2fs_inode_data_blocks2(fs, inode);
- if (blocks) {
- if ((inode->i_size >= fs->blocksize) ||
- (blocks != fs->blocksize >> 9) ||
- (inode->i_block[0] < fs->super->s_first_data_block) ||
- (inode->i_block[0] >= ext2fs_blocks_count(fs->super)))
- return 0;
+ block = inode->i_block[0];
+ limit = ctx->fs->blocksize;
for (i = 1; i < EXT2_N_BLOCKS; i++)
if (inode->i_block[i])
return 0;
+ } else { /* inside inode i_block[] */
+ block = 0;
+ limit = sizeof(inode->i_block);
+ }
+
+ if (inode->i_size >= limit)
+ return 0;
- if (io_channel_read_blk64(fs->io, inode->i_block[0], 1, buf))
+ if (num_blocks) {
+ if ((num_blocks != ctx->fs->blocksize >> 9) || /* == 1 block */
+ (block < ctx->fs->super->s_first_data_block) ||
+ (block >= ext2fs_blocks_count(ctx->fs->super)))
return 0;
- len = strnlen(buf, fs->blocksize);
- if (len == fs->blocksize)
+ if (io_channel_read_blk64(ctx->fs->io, block, 1, buf))
return 0;
} else {
- if (inode->i_size >= sizeof(inode->i_block))
- return 0;
+ buf = (char *)inode->i_block;
+ }
- len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
- if (len == sizeof(inode->i_block))
- return 0;
+ len = strnlen(buf, limit);
+ /* Add missing NUL terminator at end of symlink (LU-1540),
+ * but only offer to fix this in pass1, not from pass2. */
+ if (len > inode->i_size && pctx != NULL &&
+ fix_problem(ctx, PR_1_SYMLINK_NUL, pctx)) {
+ buf[inode->i_size] = '\0';
+ if (num_blocks != 0) {
+ if (io_channel_write_blk64(ctx->fs->io, block, 1, buf))
+ return 0;
+ } else {
+ e2fsck_write_inode(ctx, ino, inode, "check_ext_attr");
+ }
+ len = inode->i_size;
}
if (len != inode->i_size)
return 0;
+
return 1;
}
+int e2fsck_pass1_check_symlink(e2fsck_t ctx, ext2_ino_t ino,
+ struct ext2_inode *inode, char *buf)
+{
+ return check_symlink(ctx, NULL, ino, inode, buf);
+}
+
/*
* If the immutable (or append-only) flag is set on the inode, offer
* to clear it.
if (!(pctx->inode->i_flags & BAD_SPECIAL_FLAGS))
return;
+ e2fsck_mark_inode_bad(ctx, pctx->ino, BADNESS_NORMAL);
if (!fix_problem(ctx, PR_1_SET_IMMUTABLE, pctx))
return;
if (EXT2_I_SIZE(inode) == 0)
return;
+ e2fsck_mark_inode_bad(ctx, pctx->ino, BADNESS_NORMAL);
if (!fix_problem(ctx, PR_1_SET_NONZSIZE, pctx))
return;
- inode->i_size = 0;
- inode->i_size_high = 0;
+ ext2fs_inode_size_set(ctx->fs, inode, 0);
e2fsck_write_inode(ctx, pctx->ino, pctx->inode, "pass1");
}
+static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
+{
+ e2fsck_t ctx = (e2fsck_t) fs->priv_data;
+
+ if (ctx->block_found_map) {
+ if (inuse > 0)
+ ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
+ else
+ ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
+ }
+}
+
+static void mark_inode_ea_map(e2fsck_t ctx, struct problem_context *pctx,
+ ext2_ino_t ino)
+{
+ if (!ctx->inode_ea_map) {
+ pctx->errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
+ _("EA inode map"),
+ &ctx->inode_ea_map);
+ if (pctx->errcode) {
+ fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR,
+ pctx);
+ exit(1);
+ }
+ }
+
+ ext2fs_mark_inode_bitmap2(ctx->inode_ea_map, ino);
+}
+
+/*
+ * Delete an EA entry. If this is the last entry to be deleted, then i_file_acl
+ * must have been freed, so we must update e2fsck block statistics and set
+ * i_file_acl_deleted.
+ * When we delete the entry successfully, this function returns 0, else
+ * non-zero value.
+ */
+
+static int e2fsck_ea_entry_delete(e2fsck_t ctx,
+ struct ext2_ext_attr_entry *entry,
+ struct problem_context *pctx,
+ int *i_file_acl_deleted, problem_t prob)
+{
+ blk_t i_file_acl = pctx->inode->i_file_acl;
+ int err = 1;
+
+ pctx->num = entry->e_value_inum;
+
+ if (fix_problem(ctx, prob, pctx)) {
+ /* Delete corrupt EA entry */
+ err = ext2fs_attr_set(ctx->fs, pctx->ino, pctx->inode,
+ entry->e_name_index, entry->e_name,
+ 0, 0, 0);
+ if (err == 0) {
+ if (i_file_acl && pctx->inode->i_file_acl == 0) {
+ e2fsck_block_alloc_stats(ctx->fs, i_file_acl,
+ -1);
+ *i_file_acl_deleted = 1;
+ }
+ return 0;
+ }
+ }
+
+ return err;
+}
+
+/*
+ * Check validity of EA inode. Return 0 if EA inode is valid, nonzero otherwise.
+ */
+static int check_large_ea_inode(e2fsck_t ctx, struct ext2_ext_attr_entry *entry,
+ struct problem_context *pctx,
+ int *i_file_acl_deleted)
+{
+ struct ext2_inode inode;
+ int ret = 0;
+
+ /* Check if inode is within valid range */
+ if ((entry->e_value_inum < EXT2_FIRST_INODE(ctx->fs->super)) ||
+ (entry->e_value_inum > ctx->fs->super->s_inodes_count)) {
+ ret = e2fsck_ea_entry_delete(ctx, entry, pctx,
+ i_file_acl_deleted,
+ PR_1_ATTR_VALUE_EA_INODE);
+ /* If user refuses to delete this entry, caller may try to set
+ * the bit for this out-of-bound inode in inode_ea_map, so
+ * always return failure */
+ return 1;
+ }
+
+ e2fsck_read_inode(ctx, entry->e_value_inum, &inode, "pass1");
+ if (!(inode.i_flags & EXT4_EA_INODE_FL)) {
+ /* If EXT4_EA_INODE_FL flag is not present but back-pointer
+ * matches then we should set this flag */
+ if (inode.i_mtime == pctx->ino &&
+ inode.i_generation == pctx->inode->i_generation &&
+ fix_problem(ctx, PR_1_ATTR_SET_EA_INODE_FL, pctx)) {
+ inode.i_flags |= EXT4_EA_INODE_FL;
+ ext2fs_write_inode(ctx->fs, entry->e_value_inum,&inode);
+ } else {
+ ret = e2fsck_ea_entry_delete(ctx, entry, pctx,
+ i_file_acl_deleted,
+ PR_1_ATTR_NO_EA_INODE_FL);
+ goto out;
+ }
+ } else if (inode.i_mtime != pctx->ino ||
+ inode.i_generation != pctx->inode->i_generation) {
+ ret = e2fsck_ea_entry_delete(ctx, entry, pctx,
+ i_file_acl_deleted,
+ PR_1_ATTR_INVAL_EA_INODE);
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
{
struct ext2_super_block *sb = ctx->fs->super;
struct ext2_inode_large *inode;
struct ext2_ext_attr_entry *entry;
- char *start, *end;
+ char *start;
unsigned int storage_size, remain;
- int problem = 0;
+ problem_t problem = 0;
inode = (struct ext2_inode_large *) pctx->inode;
- storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
- inode->i_extra_isize;
- start = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
- inode->i_extra_isize + sizeof(__u32);
- end = (char *) inode + EXT2_INODE_SIZE(ctx->fs->super);
- entry = (struct ext2_ext_attr_entry *) start;
+ storage_size = EXT2_INODE_SIZE(ctx->fs->super) -
+ EXT2_GOOD_OLD_INODE_SIZE - inode->i_extra_isize;
+ entry = &IHDR(inode)->h_first_entry[0];
+ start = (char *)entry;
/* scan all entry's headers first */
/* attribute len eats this space */
remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
- /* check value size */
- if (entry->e_value_size == 0 || entry->e_value_size > remain) {
- pctx->num = entry->e_value_size;
- problem = PR_1_ATTR_VALUE_SIZE;
- goto fix;
+ if (entry->e_value_inum == 0) {
+ /* check value size */
+ if (entry->e_value_size > remain) {
+ pctx->num = entry->e_value_size;
+ problem = PR_1_ATTR_VALUE_SIZE;
+ goto fix;
+ }
+ } else {
+ int ret, tmp;
+
+ ret = check_large_ea_inode(ctx, entry, pctx, &tmp);
+ if (ret == 0)
+ mark_inode_ea_map(ctx, pctx,
+ entry->e_value_inum);
}
- /* e_value_block must be 0 in inode's ea */
- if (entry->e_value_block != 0) {
- pctx->num = entry->e_value_block;
- problem = PR_1_ATTR_VALUE_BLOCK;
+ /* Value size cannot be larger than EA space in inode */
+ if (entry->e_value_offs > storage_size ||
+ (entry->e_value_inum == 0 &&
+ entry->e_value_offs + entry->e_value_size > storage_size)) {
+ problem = PR_1_INODE_EA_BAD_VALUE;
goto fix;
}
goto fix;
}
- remain -= entry->e_value_size;
+ /* If EA value is stored in external inode then it does not
+ * consume space here */
+ if (entry->e_value_inum == 0)
+ remain -= entry->e_value_size;
entry = EXT2_EXT_ATTR_NEXT(entry);
}
struct ext2_super_block *sb = ctx->fs->super;
struct ext2_inode_large *inode;
__u32 *eamagic;
- int min, max;
+ int min, max, dirty = 0;
inode = (struct ext2_inode_large *) pctx->inode;
if (EXT2_INODE_SIZE(sb) == EXT2_GOOD_OLD_INODE_SIZE) {
*/
if (inode->i_extra_isize &&
(inode->i_extra_isize < min || inode->i_extra_isize > max)) {
+ e2fsck_mark_inode_bad(ctx, pctx->ino, BADNESS_NORMAL);
if (!fix_problem(ctx, PR_1_EXTRA_ISIZE, pctx))
return;
- inode->i_extra_isize = min;
- e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
- EXT2_INODE_SIZE(sb), "pass1");
- return;
+ inode->i_extra_isize = ctx->want_extra_isize;
+ dirty = 1;
+
+ goto out;
}
- eamagic = (__u32 *) (((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
- inode->i_extra_isize);
- if (*eamagic == EXT2_EXT_ATTR_MAGIC) {
- /* it seems inode has an extended attribute(s) in body */
- check_ea_in_inode(ctx, pctx);
+ if (EXT4_FITS_IN_INODE(inode, inode, i_crtime) &&
+ inode->i_crtime != 0 &&
+ (EXT4_XTIME_FUTURE(ctx, sb, inode->i_crtime, 2*ctx->time_fudge) ||
+ EXT4_XTIME_ANCIENT(ctx, sb, inode->i_crtime, 2*ctx->time_fudge))) {
+ pctx->num = inode->i_crtime;
+ if (fix_problem(ctx, PR_1_CRTIME_BAD, pctx)) {
+ inode->i_crtime = 0;
+ dirty = 1;
+ }
+ e2fsck_mark_inode_bad(ctx, pctx->ino, BADNESS_HIGH);
+ }
+
+ eamagic = &IHDR(inode)->h_magic;
+ if (*eamagic != EXT2_EXT_ATTR_MAGIC &&
+ (ctx->flags & E2F_FLAG_EXPAND_EISIZE) &&
+ (inode->i_extra_isize < ctx->want_extra_isize)) {
+ fix_problem(ctx, PR_1_EXPAND_EISIZE, pctx);
+ memset((char *)inode + EXT2_GOOD_OLD_INODE_SIZE, 0,
+ EXT2_INODE_SIZE(sb) - EXT2_GOOD_OLD_INODE_SIZE);
+ inode->i_extra_isize = ctx->want_extra_isize;
+ dirty = 1;
+ if (inode->i_extra_isize < ctx->min_extra_isize)
+ ctx->min_extra_isize = inode->i_extra_isize;
}
+
+ if (*eamagic == EXT2_EXT_ATTR_MAGIC)
+ check_ea_in_inode(ctx, pctx);
+out:
+ if (dirty)
+ e2fsck_write_inode_full(ctx, pctx->ino, pctx->inode,
+ EXT2_INODE_SIZE(sb), "pass1");
}
/*
(rec_len % 4))
return;
+ e2fsck_mark_inode_bad(ctx, pctx->ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) {
inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR;
e2fsck_write_inode_full(ctx, pctx->ino, inode,
}
}
-extern void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
- ext2_icount_t *ret)
+void e2fsck_setup_tdb_icount(e2fsck_t ctx, int flags,
+ ext2_icount_t *ret)
{
unsigned int threshold;
ext2_ino_t num_dirs;
*ret = 0;
}
+int e2fsck_pass1_delete_attr(e2fsck_t ctx, struct ext2_inode_large *inode,
+ struct problem_context *pctx, int needed_size)
+{
+ struct ext2_ext_attr_header *header;
+ struct ext2_ext_attr_entry *entry_ino, *entry_blk = NULL, *entry;
+ char *start, name[4096], block_buf[4096];
+ int len, index = EXT2_ATTR_INDEX_USER, entry_size, ea_size;
+ int in_inode = 1, error;
+ unsigned int freed_bytes = inode->i_extra_isize;
+
+ entry_ino = &IHDR(inode)->h_first_entry[0];
+ start = (char *)entry_ino;
+
+ if (inode->i_file_acl) {
+ error = ext2fs_read_ext_attr(ctx->fs, inode->i_file_acl,
+ block_buf);
+ /* We have already checked this block, shouldn't happen */
+ if (error) {
+ fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, pctx);
+ return 0;
+ }
+ header = BHDR(block_buf);
+ if (header->h_magic != EXT2_EXT_ATTR_MAGIC) {
+ fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, pctx);
+ return 0;
+ }
+
+ entry_blk = (struct ext2_ext_attr_entry *)(header+1);
+ }
+ entry = entry_ino;
+ len = sizeof(entry->e_name);
+ entry_size = ext2fs_attr_get_next_attr(entry, index, name, len, 1);
+
+ while (freed_bytes < needed_size) {
+ if (entry_size && name[0] != '\0') {
+ pctx->str = name;
+ if (fix_problem(ctx, PR_1_EISIZE_DELETE_EA, pctx)) {
+ ea_size = EXT2_EXT_ATTR_LEN(entry->e_name_len) +
+ EXT2_EXT_ATTR_SIZE(entry->e_value_size);
+ error = ext2fs_attr_set(ctx->fs, pctx->ino,
+ (struct ext2_inode *)inode,
+ index, name, 0, 0, 0);
+ if (!error)
+ freed_bytes += ea_size;
+ }
+ }
+ len = sizeof(entry->e_name);
+ entry_size = ext2fs_attr_get_next_attr(entry, index,name,len,0);
+ entry = EXT2_EXT_ATTR_NEXT(entry);
+ if (EXT2_EXT_IS_LAST_ENTRY(entry)) {
+ if (in_inode) {
+ entry = entry_blk;
+ len = sizeof(entry->e_name);
+ entry_size = ext2fs_attr_get_next_attr(entry,
+ index, name, len, 1);
+ in_inode = 0;
+ } else {
+ index += 1;
+ in_inode = 1;
+ if (!entry && index < EXT2_ATTR_INDEX_MAX)
+ entry = (struct ext2_ext_attr_entry *)start;
+ else
+ return freed_bytes;
+ }
+ }
+ }
+
+ return freed_bytes;
+}
+
+int e2fsck_pass1_expand_eisize(e2fsck_t ctx, struct ext2_inode_large *inode,
+ struct problem_context *pctx)
+{
+ int needed_size = 0, retval, ret = EXT2_EXPAND_EISIZE_UNSAFE;
+ static int message;
+
+retry:
+ retval = ext2fs_expand_extra_isize(ctx->fs, pctx->ino, inode,
+ ctx->want_extra_isize, &ret,
+ &needed_size);
+ if (ret & EXT2_EXPAND_EISIZE_NEW_BLOCK)
+ goto mark_expand_eisize_map;
+ if (!retval) {
+ e2fsck_write_inode_full(ctx, pctx->ino,
+ (struct ext2_inode *)inode,
+ EXT2_INODE_SIZE(ctx->fs->super),
+ "pass1");
+ return 0;
+ }
+
+ if (ret & EXT2_EXPAND_EISIZE_NOSPC) {
+ if (ctx->options & (E2F_OPT_PREEN | E2F_OPT_YES)) {
+ fix_problem(ctx, PR_1_EA_BLK_NOSPC, pctx);
+ ctx->flags |= E2F_FLAG_ABORT;
+ return -1;
+ }
+
+ if (!message) {
+ pctx->num = ctx->fs->super->s_min_extra_isize;
+ fix_problem(ctx, PR_1_EXPAND_EISIZE_WARNING, pctx);
+ message = 1;
+ }
+delete_EA:
+ retval = e2fsck_pass1_delete_attr(ctx, inode, pctx,
+ needed_size);
+ if (retval >= ctx->want_extra_isize)
+ goto retry;
+
+ needed_size -= retval;
+
+ /*
+ * We loop here until either the user deletes EA(s) or
+ * EXTRA_ISIZE feature is disabled.
+ */
+ if (fix_problem(ctx, PR_1_CLEAR_EXTRA_ISIZE, pctx)) {
+ ctx->fs->super->s_feature_ro_compat &=
+ ~EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE;
+ ext2fs_mark_super_dirty(ctx->fs);
+ } else {
+ goto delete_EA;
+ }
+ ctx->fs_unexpanded_inodes++;
+
+ /* No EA was deleted, inode cannot be expanded */
+ return -1;
+ }
+
+mark_expand_eisize_map:
+ if (!ctx->expand_eisize_map) {
+ pctx->errcode = ext2fs_allocate_inode_bitmap(ctx->fs,
+ _("expand extrz isize map"),
+ &ctx->expand_eisize_map);
+ if (pctx->errcode) {
+ fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR,
+ pctx);
+ exit(1);
+ }
+ }
+
+ /* Add this inode to the expand_eisize_map */
+ ext2fs_mark_inode_bitmap2(ctx->expand_eisize_map, pctx->ino);
+ return 0;
+}
+
+static void reserve_block_for_root_repair(e2fsck_t ctx)
+{
+ blk64_t blk = 0;
+ errcode_t err;
+ ext2_filsys fs = ctx->fs;
+
+ ctx->root_repair_block = 0;
+ if (ext2fs_test_inode_bitmap2(ctx->inode_used_map, EXT2_ROOT_INO))
+ return;
+
+ err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
+ if (err)
+ return;
+ ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
+ ctx->root_repair_block = blk;
+}
+
+static void reserve_block_for_lnf_repair(e2fsck_t ctx)
+{
+ blk64_t blk = 0;
+ errcode_t err;
+ ext2_filsys fs = ctx->fs;
+ static const char name[] = "lost+found";
+ ext2_ino_t ino;
+
+ ctx->lnf_repair_block = 0;
+ if (!ext2fs_lookup(fs, EXT2_ROOT_INO, name, sizeof(name)-1, 0, &ino))
+ return;
+
+ err = ext2fs_new_block2(fs, 0, ctx->block_found_map, &blk);
+ if (err)
+ return;
+ ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
+ ctx->lnf_repair_block = blk;
+}
+
void e2fsck_pass1(e2fsck_t ctx)
{
int i;
__u64 max_sizes;
ext2_filsys fs = ctx->fs;
ext2_ino_t ino = 0;
- struct ext2_inode *inode;
- ext2_inode_scan scan;
- char *block_buf;
+ struct ext2_inode *inode = NULL;
+ ext2_inode_scan scan = NULL;
+ char *block_buf = NULL;
#ifdef RESOURCE_TRACK
struct resource_track rtrack;
#endif
const char *old_op;
unsigned int save_type;
int imagic_fs, extent_fs;
- int busted_fs_time = 0;
+ int low_dtime_check = 1;
int inode_size;
+ int inode_exp = 0;
+
init_resource_track(&rtrack, ctx->fs->io);
clear_problem_context(&pctx);
return;
}
inode_size = EXT2_INODE_SIZE(fs->super);
- inode = (struct ext2_inode *)
- e2fsck_allocate_memory(ctx, inode_size, "scratch inode");
+ inode = e2fsck_allocate_memory(ctx, inode_size, "scratch inode");
- inodes_to_process = (struct process_inode_block *)
- e2fsck_allocate_memory(ctx,
+ inodes_to_process = e2fsck_allocate_memory(ctx,
(ctx->process_inode_size *
sizeof(struct process_inode_block)),
"array of inodes to process");
if (pctx.errcode) {
fix_problem(ctx, PR_1_ALLOCATE_DBCOUNT, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
- ext2fs_free_mem(&inode);
- return;
+ goto endit;
}
/*
if (pctx.errcode) {
fix_problem(ctx, PR_1_CONVERT_SUBCLUSTER, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
- ext2fs_free_mem(&inode);
- return;
+ goto endit;
}
block_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize * 3,
"block interate buffer");
e2fsck_use_inode_shortcuts(ctx, 1);
+ e2fsck_intercept_block_allocations(ctx);
old_op = ehandler_operation(_("opening inode scan"));
pctx.errcode = ext2fs_open_inode_scan(fs, ctx->inode_buffer_blocks,
&scan);
if (pctx.errcode) {
fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
- ext2fs_free_mem(&block_buf);
- ext2fs_free_mem(&inode);
- return;
+ goto endit;
}
ext2fs_inode_scan_flags(scan, EXT2_SF_SKIP_MISSING_ITABLE, 0);
- ctx->stashed_inode = inode;
+ ctx->stashed_inode = (struct ext2_inode_large *)inode;
scan_struct.ctx = ctx;
scan_struct.block_buf = block_buf;
ext2fs_set_inode_callback(scan, scan_callback, &scan_struct);
- if (ctx->progress)
- if ((ctx->progress)(ctx, 1, 0, ctx->fs->group_desc_count))
- return;
+ if (ctx->progress && ((ctx->progress)(ctx, 1, 0,
+ ctx->fs->group_desc_count)))
+ goto endit;
if ((fs->super->s_wtime < fs->super->s_inodes_count) ||
- (fs->super->s_mtime < fs->super->s_inodes_count))
- busted_fs_time = 1;
+ (fs->super->s_mtime < fs->super->s_inodes_count) ||
+ (fs->super->s_mkfs_time &&
+ fs->super->s_mkfs_time < fs->super->s_inodes_count))
+ low_dtime_check = 0;
if ((fs->super->s_feature_incompat & EXT4_FEATURE_INCOMPAT_MMP) &&
- !(fs->super->s_mmp_block <= fs->super->s_first_data_block ||
- fs->super->s_mmp_block >= fs->super->s_blocks_count))
+ fs->super->s_mmp_block > fs->super->s_first_data_block &&
+ fs->super->s_mmp_block < ext2fs_blocks_count(fs->super))
ext2fs_mark_block_bitmap2(ctx->block_found_map,
fs->super->s_mmp_block);
inode, inode_size);
ehandler_operation(old_op);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
+ goto endit;
if (pctx.errcode == EXT2_ET_BAD_BLOCK_IN_INODE_TABLE) {
if (!ctx->inode_bb_map)
alloc_bb_map(ctx);
if (pctx.errcode) {
fix_problem(ctx, PR_1_ISCAN_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
- return;
+ goto endit;
}
if (!ino)
break;
pctx.num = inode->i_links_count;
fix_problem(ctx, PR_1_ICOUNT_STORE, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
- return;
+ goto endit;
}
}
ehp = inode->i_block;
#endif
if ((ext2fs_extent_header_verify(ehp,
- sizeof(inode->i_block)) == 0) &&
- (fix_problem(ctx, PR_1_UNSET_EXTENT_FL, &pctx))) {
- inode->i_flags |= EXT4_EXTENTS_FL;
+ sizeof(inode->i_block)) == 0)) {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
+ if (fix_problem(ctx, PR_1_UNSET_EXTENT_FL,
+ &pctx)) {
+ inode->i_flags |= EXT4_EXTENTS_FL;
#ifdef WORDS_BIGENDIAN
- memcpy(inode->i_block, tmp_block,
- sizeof(inode->i_block));
+ memcpy(inode->i_block, tmp_block,
+ sizeof(inode->i_block));
#endif
- e2fsck_write_inode(ctx, ino, inode, "pass1");
+ e2fsck_write_inode(ctx, ino, inode,
+ "pass1");
+ }
}
}
pctx.num = 4;
fix_problem(ctx, PR_1_ALLOCATE_BBITMAP_ERROR, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
- return;
+ goto endit;
}
pb.ino = EXT2_BAD_INO;
pb.num_blocks = pb.last_block = 0;
if (pctx.errcode) {
fix_problem(ctx, PR_1_BLOCK_ITERATE, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
- return;
+ goto endit;
}
if (pb.bbcheck)
if (!fix_problem(ctx, PR_1_BBINODE_BAD_METABLOCK_PROMPT, &pctx)) {
ctx->flags |= E2F_FLAG_ABORT;
- return;
+ goto endit;
}
ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
clear_problem_context(&pctx);
* as a special case.
*/
if (inode->i_dtime && inode->i_links_count) {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_ROOT_DTIME, &pctx)) {
inode->i_dtime = 0;
e2fsck_write_inode(ctx, ino, inode,
inode_size, "pass1");
}
} else if (ino < EXT2_FIRST_INODE(fs->super)) {
- int problem = 0;
+ problem_t problem = 0;
ext2fs_mark_inode_bitmap2(ctx->inode_used_map, ino);
if (ino == EXT2_BOOT_LOADER_INO) {
* than nothing. The right answer is that there
* shouldn't be any bugs in the orphan list handling. :-)
*/
- if (inode->i_dtime && !busted_fs_time &&
+ if (inode->i_dtime && low_dtime_check &&
inode->i_dtime < ctx->fs->super->s_inodes_count) {
if (fix_problem(ctx, PR_1_LOW_DTIME, &pctx)) {
inode->i_dtime = inode->i_links_count ?
*
*/
if (inode->i_dtime) {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_SET_DTIME, &pctx)) {
inode->i_dtime = 0;
e2fsck_write_inode(ctx, ino, inode, "pass1");
frag = fsize = 0;
}
+ /* Fixed in pass2, e2fsck_process_bad_inode(). */
if (inode->i_faddr || frag || fsize ||
(LINUX_S_ISDIR(inode->i_mode) && inode->i_dir_acl))
- mark_inode_bad(ctx, ino);
- if (!(fs->super->s_feature_incompat &
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
+ if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
+ !(fs->super->s_feature_incompat &
EXT4_FEATURE_INCOMPAT_64BIT) &&
inode->osd2.linux2.l_i_file_acl_high != 0)
- mark_inode_bad(ctx, ino);
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
!(fs->super->s_feature_ro_compat &
EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
(inode->osd2.linux2.l_i_blocks_hi != 0))
- mark_inode_bad(ctx, ino);
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (inode->i_flags & EXT2_IMAGIC_FL) {
if (imagic_fs) {
if (!ctx->inode_imagic_map)
ext2fs_mark_inode_bitmap2(ctx->inode_imagic_map,
ino);
} else {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_SET_IMAGIC, &pctx)) {
inode->i_flags &= ~EXT2_IMAGIC_FL;
e2fsck_write_inode(ctx, ino,
check_size(ctx, &pctx);
ctx->fs_blockdev_count++;
} else if (LINUX_S_ISLNK (inode->i_mode) &&
- e2fsck_pass1_check_symlink(fs, ino, inode,
- block_buf)) {
+ check_symlink(ctx, &pctx, ino, inode, block_buf)) {
check_immutable(ctx, &pctx);
ctx->fs_symlinks_count++;
if (ext2fs_inode_data_blocks(fs, inode) == 0) {
check_immutable(ctx, &pctx);
check_size(ctx, &pctx);
ctx->fs_sockets_count++;
- } else
- mark_inode_bad(ctx, ino);
+ } else {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
+ }
+
+ if (EXT4_XTIME_FUTURE(ctx, sb, inode->i_atime, ctx->time_fudge))
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
+ else if (EXT4_XTIME_FUTURE(ctx, sb, inode->i_mtime,
+ ctx->time_fudge))
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
+
+ if (EXT4_XTIME_FUTURE(ctx, sb, inode->i_ctime, ctx->time_fudge))
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_HIGH);
+ else if (EXT4_XTIME_ANCIENT(ctx, sb, inode->i_ctime,
+ ctx->time_fudge))
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_HIGH);
+
+ /* i_crtime is checked in check_inode_extra_space() */
+
if (!(inode->i_flags & EXT4_EXTENTS_FL)) {
if (inode->i_block[EXT2_IND_BLOCK])
ctx->fs_ind_count++;
inode->i_block[EXT2_TIND_BLOCK] ||
ext2fs_file_acl_block(fs, inode))) {
inodes_to_process[process_inode_count].ino = ino;
- inodes_to_process[process_inode_count].inode = *inode;
+ inodes_to_process[process_inode_count].inode =
+ *((struct ext2_inode_large *)inode);
process_inode_count++;
} else
check_blocks(ctx, &pctx, block_buf);
+ if (ctx->flags & E2F_FLAG_EXPAND_EISIZE) {
+ struct ext2_inode_large *inode_l;
+
+ inode_l = (struct ext2_inode_large *)inode;
+
+ if (inode_l->i_extra_isize < ctx->want_extra_isize) {
+ fix_problem(ctx, PR_1_EXPAND_EISIZE, &pctx);
+ inode_exp = e2fsck_pass1_expand_eisize(ctx,
+ inode_l,
+ &pctx);
+ }
+ if ((inode_l->i_extra_isize < ctx->min_extra_isize) &&
+ inode_exp == 0)
+ ctx->min_extra_isize = inode_l->i_extra_isize;
+ }
+
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
+ goto endit;
if (process_inode_count >= ctx->process_inode_size) {
process_inodes(ctx, block_buf);
if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
- return;
+ goto endit;
}
}
process_inodes(ctx, block_buf);
ext2fs_close_inode_scan(scan);
+ scan = NULL;
+
+ reserve_block_for_root_repair(ctx);
+ reserve_block_for_lnf_repair(ctx);
/*
* If any extended attribute blocks' reference counts need to
}
if (ctx->flags & E2F_FLAG_RESIZE_INODE) {
- ext2fs_block_bitmap save_bmap;
-
- save_bmap = fs->block_map;
- fs->block_map = ctx->block_found_map;
clear_problem_context(&pctx);
pctx.errcode = ext2fs_create_resize_inode(fs);
if (pctx.errcode) {
if (!fix_problem(ctx, PR_1_RESIZE_INODE_CREATE,
&pctx)) {
ctx->flags |= E2F_FLAG_ABORT;
- return;
+ goto endit;
}
pctx.errcode = 0;
}
e2fsck_write_inode(ctx, EXT2_RESIZE_INO, inode,
"recreate inode");
}
- fs->block_map = save_bmap;
ctx->flags &= ~E2F_FLAG_RESIZE_INODE;
}
endit:
e2fsck_use_inode_shortcuts(ctx, 0);
- ext2fs_free_mem(&block_buf);
- ext2fs_free_mem(&inode);
+ if (scan)
+ ext2fs_close_inode_scan(scan);
+ if (block_buf)
+ ext2fs_free_mem(&block_buf);
+ if (inode)
+ ext2fs_free_mem(&inode);
- print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
+ if ((ctx->flags & E2F_FLAG_SIGNAL_MASK) == 0)
+ print_resource_track(ctx, _("Pass 1"), &rtrack, ctx->fs->io);
+ else
+ ctx->invalid_bitmaps++;
}
/*
static void process_inodes(e2fsck_t ctx, char *block_buf)
{
int i;
- struct ext2_inode *old_stashed_inode;
+ struct ext2_inode_large *old_stashed_inode;
ext2_ino_t old_stashed_ino;
const char *old_operation;
char buf[80];
sizeof(struct process_inode_block), process_inode_cmp);
clear_problem_context(&pctx);
for (i=0; i < process_inode_count; i++) {
- pctx.inode = ctx->stashed_inode = &inodes_to_process[i].inode;
+ ctx->stashed_inode = &inodes_to_process[i].inode;
+ pctx.inode = (struct ext2_inode *)ctx->stashed_inode;
pctx.ino = ctx->stashed_ino = inodes_to_process[i].ino;
#if 0
* inodes, so it's OK to pass NULL to
* ext2fs_file_acl_block() here.
*/
- ret = ext2fs_file_acl_block(0, &(ib_a->inode)) -
- ext2fs_file_acl_block(0, &(ib_b->inode));
+ ret = ext2fs_file_acl_block(0, (struct ext2_inode *)&(ib_a->inode)) -
+ ext2fs_file_acl_block(0, (struct ext2_inode *)&(ib_b->inode));
if (ret == 0)
ret = ib_a->ino - ib_b->ino;
return ret;
}
/*
- * Mark an inode as being bad in some what
+ * Mark an inode as being bad and increment its badness counter.
*/
-static void mark_inode_bad(e2fsck_t ctx, ino_t ino)
+void e2fsck_mark_inode_bad_loc(e2fsck_t ctx, ino_t ino, int count,
+ const char *func, const int line)
{
struct problem_context pctx;
+ __u16 result;
- if (!ctx->inode_bad_map) {
+ if (!ctx->inode_badness) {
clear_problem_context(&pctx);
- pctx.errcode = e2fsck_allocate_inode_bitmap(ctx->fs,
- _("bad inode map"), EXT2FS_BMAP64_RBTREE,
- "inode_bad_map", &ctx->inode_bad_map);
+ pctx.errcode = ext2fs_create_icount2(ctx->fs, 0, 0, NULL,
+ &ctx->inode_badness);
if (pctx.errcode) {
- pctx.num = 3;
- fix_problem(ctx, PR_1_ALLOCATE_IBITMAP_ERROR, &pctx);
- /* Should never get here */
+ fix_problem(ctx, PR_1_ALLOCATE_ICOUNT, &pctx);
ctx->flags |= E2F_FLAG_ABORT;
return;
}
}
- ext2fs_mark_inode_bitmap2(ctx->inode_bad_map, ino);
+ ext2fs_icount_fetch(ctx->inode_badness, ino, &result);
+ ext2fs_icount_store(ctx->inode_badness, ino, count + result);
+
+ if (ctx->options & E2F_OPT_DEBUG)
+ fprintf(stderr, "%s:%d: increase inode %lu badness %u to %u\n",
+ func, line, (unsigned long)ino, result, count + result);
}
}
}
+static _INLINE_ void mark_blocks_used(e2fsck_t ctx, blk64_t block,
+ unsigned int num)
+{
+ if (ext2fs_test_block_bitmap_range2(ctx->block_found_map, block, num))
+ ext2fs_mark_block_bitmap_range2(ctx->block_found_map, block, num);
+ else
+ while (num--)
+ mark_block_used(ctx, block++);
+}
+
/*
* Adjust the extended attribute block's reference counts at the end
* of pass 1, either by subtracting out references for EA blocks that
break;
pctx.blk = blk;
pctx.errcode = ext2fs_read_ext_attr2(fs, blk, block_buf);
+ /* We already checked this block, shouldn't happen */
if (pctx.errcode) {
fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
return;
}
- header = (struct ext2_ext_attr_header *) block_buf;
+ header = BHDR(block_buf);
+ if (header->h_magic != EXT2_EXT_ATTR_MAGIC) {
+ fix_problem(ctx, PR_1_EXTATTR_READ_ABORT, &pctx);
+ return;
+ }
+
pctx.blkcount = header->h_refcount;
should_be = header->h_refcount + adjust_sign * count;
pctx.num = should_be;
struct ext2_ext_attr_entry *entry;
int count;
region_t region = 0;
+ int ret;
blk = ext2fs_file_acl_block(fs, inode);
if (blk == 0)
if (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR) ||
(blk < fs->super->s_first_data_block) ||
(blk >= ext2fs_blocks_count(fs->super))) {
- mark_inode_bad(ctx, ino);
+ /* Fixed in pass2, e2fsck_process_bad_inode(). */
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
return 0;
}
pctx->errcode = ext2fs_read_ext_attr2(fs, blk, block_buf);
if (pctx->errcode && fix_problem(ctx, PR_1_READ_EA_BLOCK, pctx))
goto clear_extattr;
- header = (struct ext2_ext_attr_header *) block_buf;
+ header = BHDR(block_buf);
pctx->blk = ext2fs_file_acl_block(fs, inode);
if (((ctx->ext_attr_ver == 1) &&
(header->h_magic != EXT2_EXT_ATTR_MAGIC_v1)) ||
goto clear_extattr;
break;
}
- if (entry->e_value_block != 0) {
- if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
- goto clear_extattr;
- }
- if (entry->e_value_offs + entry->e_value_size > fs->blocksize) {
- if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
- goto clear_extattr;
- break;
- }
- if (entry->e_value_size &&
- region_allocate(region, entry->e_value_offs,
- EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
- if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION, pctx))
+ if (entry->e_value_inum == 0) {
+ if (entry->e_value_offs + entry->e_value_size >
+ fs->blocksize) {
+ if (fix_problem(ctx, PR_1_EA_BAD_VALUE, pctx))
+ goto clear_extattr;
+ break;
+ }
+ if (entry->e_value_size &&
+ region_allocate(region, entry->e_value_offs,
+ EXT2_EXT_ATTR_SIZE(entry->e_value_size))) {
+ if (fix_problem(ctx, PR_1_EA_ALLOC_COLLISION,
+ pctx))
+ goto clear_extattr;
+ }
+ } else {
+ int i_file_acl_deleted = 0;
+
+ ret = check_large_ea_inode(ctx, entry, pctx,
+ &i_file_acl_deleted);
+ if (ret == 0)
+ mark_inode_ea_map(ctx, pctx,
+ entry->e_value_inum);
+
+ if (i_file_acl_deleted)
goto clear_extattr;
}
if ((!LINUX_S_ISDIR(inode->i_mode) &&
fix_problem(ctx, PR_1_HTREE_NODIR, pctx)) ||
- (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) &&
- fix_problem(ctx, PR_1_HTREE_SET, pctx)))
- return 1;
+ (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX))) {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
+ if (fix_problem(ctx, PR_1_HTREE_SET, pctx))
+ return 1;
+ }
pctx->errcode = ext2fs_bmap2(fs, ino, inode, 0, 0, 0, 0, &blk);
(blk == 0) ||
(blk < fs->super->s_first_data_block) ||
(blk >= ext2fs_blocks_count(fs->super))) {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
return 1;
else
}
retval = io_channel_read_blk64(fs->io, blk, 1, block_buf);
- if (retval && fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
- return 1;
+ if (retval) {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
+ if (fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
+ return 1;
+ }
/* XXX should check that beginning matches a directory */
- root = (struct ext2_dx_root_info *) (block_buf + 24);
+ root = get_ext2_dx_root_info(fs, block_buf);
if ((root->reserved_zero || root->info_length < 8) &&
fix_problem(ctx, PR_1_HTREE_BADROOT, pctx))
ext2fs_unmark_inode_bitmap2(ctx->inode_used_map, ino);
if (ctx->inode_reg_map)
ext2fs_unmark_inode_bitmap2(ctx->inode_reg_map, ino);
- if (ctx->inode_bad_map)
- ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
+ if (ctx->inode_badness)
+ ext2fs_icount_store(ctx->inode_badness, ino, 0);
/*
* If the inode was partially accounted for before processing
e2fsck_write_inode(ctx, ino, inode, source);
}
+/*
+ * Use the multiple-blocks reclamation code to fix alignment problems in
+ * a bigalloc filesystem. We want a logical cluster to map to *only* one
+ * physical cluster, and we want the block offsets within that cluster to
+ * line up.
+ */
+static int has_unaligned_cluster_map(e2fsck_t ctx,
+ blk64_t last_pblk, e2_blkcnt_t last_lblk,
+ blk64_t pblk, blk64_t lblk)
+{
+ blk64_t cluster_mask;
+
+ if (!ctx->fs->cluster_ratio_bits)
+ return 0;
+ cluster_mask = EXT2FS_CLUSTER_MASK(ctx->fs);
+
+ /*
+ * If the block in the logical cluster doesn't align with the block in
+ * the physical cluster...
+ */
+ if ((lblk & cluster_mask) != (pblk & cluster_mask))
+ return 1;
+
+ /*
+ * If we cross a physical cluster boundary within a logical cluster...
+ */
+ if (last_pblk && (lblk & cluster_mask) != 0 &&
+ EXT2FS_B2C(ctx->fs, lblk) == EXT2FS_B2C(ctx->fs, last_lblk) &&
+ EXT2FS_B2C(ctx->fs, pblk) != EXT2FS_B2C(ctx->fs, last_pblk))
+ return 1;
+
+ return 0;
+}
+
static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
struct process_block_struct *pb,
- blk64_t start_block,
+ blk64_t start_block, blk64_t end_block,
+ blk64_t eof_block,
ext2_extent_handle_t ehandle)
{
struct ext2fs_extent extent;
- blk64_t blk;
+ blk64_t blk, last_lblk;
e2_blkcnt_t blockcnt;
unsigned int i;
int is_dir, is_leaf;
- errcode_t problem;
+ problem_t problem;
struct ext2_extent_info info;
pctx->errcode = ext2fs_extent_get_info(ehandle, &info);
while (!pctx->errcode && info.num_entries-- > 0) {
is_leaf = extent.e_flags & EXT2_EXTENT_FLAGS_LEAF;
is_dir = LINUX_S_ISDIR(pctx->inode->i_mode);
+ last_lblk = extent.e_lblk + extent.e_len - 1;
problem = 0;
if (extent.e_pblk == 0 ||
problem = PR_1_EXTENT_BAD_START_BLK;
else if (extent.e_lblk < start_block)
problem = PR_1_OUT_OF_ORDER_EXTENTS;
+ else if ((end_block && last_lblk > end_block) &&
+ (!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT &&
+ last_lblk > eof_block)))
+ problem = PR_1_EXTENT_END_OUT_OF_BOUNDS;
else if (is_leaf && extent.e_len == 0)
problem = PR_1_EXTENT_LENGTH_ZERO;
else if (is_leaf &&
(extent.e_pblk + extent.e_len) >
ext2fs_blocks_count(ctx->fs->super))
problem = PR_1_EXTENT_ENDS_BEYOND;
+ else if (is_leaf && is_dir &&
+ ((extent.e_lblk + extent.e_len) >
+ (1 << (21 - ctx->fs->super->s_log_block_size))))
+ problem = PR_1_TOOBIG_DIR;
+
+ /*
+ * Uninitialized blocks in a directory? Clear the flag and
+ * we'll interpret the blocks later.
+ */
+ if (is_dir && problem == 0 &&
+ (extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT) &&
+ fix_problem(ctx, PR_1_UNINIT_DBLOCK, pctx)) {
+ extent.e_flags &= ~EXT2_EXTENT_FLAGS_UNINIT;
+ pb->inode_modified = 1;
+ pctx->errcode = ext2fs_extent_replace(ehandle, 0,
+ &extent);
+ if (pctx->errcode)
+ return;
+ }
if (problem) {
- report_problem:
+ /* To ensure that extent is in inode */
+ if (info.curr_level == 0)
+ e2fsck_mark_inode_bad(ctx, pctx->ino,
+ BADNESS_HIGH);
+report_problem:
pctx->blk = extent.e_pblk;
pctx->blk2 = extent.e_lblk;
pctx->num = extent.e_len;
+ pctx->blkcount = extent.e_lblk + extent.e_len;
if (fix_problem(ctx, problem, pctx)) {
+ if (ctx->invalid_bitmaps) {
+ /*
+ * If fsck knows the bitmaps are bad,
+ * skip to the next extent and
+ * try to clear this extent again
+ * after fixing the bitmaps, by
+ * restarting fsck.
+ */
+ pctx->errcode = ext2fs_extent_get(
+ ehandle,
+ EXT2_EXTENT_NEXT_SIB,
+ &extent);
+ ctx->flags |= E2F_FLAG_RESTART_LATER;
+ if (pctx->errcode ==
+ EXT2_ET_NO_CURRENT_NODE) {
+ pctx->errcode = 0;
+ break;
+ }
+ continue;
+ }
e2fsck_read_bitmaps(ctx);
+ pb->inode_modified = 1;
pctx->errcode =
ext2fs_extent_delete(ehandle, 0);
if (pctx->errcode) {
pctx->str = "ext2fs_extent_delete";
return;
}
+ pctx->errcode = ext2fs_extent_fix_parents(ehandle);
+ if (pctx->errcode &&
+ pctx->errcode != EXT2_ET_NO_CURRENT_NODE) {
+ pctx->str = "ext2fs_extent_fix_parents";
+ return;
+ }
pctx->errcode = ext2fs_extent_get(ehandle,
EXT2_EXTENT_CURRENT,
&extent);
}
if (!is_leaf) {
+ blk64_t lblk = extent.e_lblk;
+
blk = extent.e_pblk;
pctx->errcode = ext2fs_extent_get(ehandle,
EXT2_EXTENT_DOWN, &extent);
goto report_problem;
return;
}
- scan_extent_node(ctx, pctx, pb, extent.e_lblk, ehandle);
+ /* The next extent should match this index's logical start */
+ if (extent.e_lblk != lblk) {
+ struct ext2_extent_info e_info;
+
+ ext2fs_extent_get_info(ehandle, &e_info);
+ pctx->blk = lblk;
+ pctx->blk2 = extent.e_lblk;
+ pctx->num = e_info.curr_level - 1;
+ problem = PR_1_EXTENT_INDEX_START_INVALID;
+ if (fix_problem(ctx, problem, pctx)) {
+ pb->inode_modified = 1;
+ pctx->errcode =
+ ext2fs_extent_fix_parents(ehandle);
+ if (pctx->errcode) {
+ pctx->str = "ext2fs_extent_fix_parents";
+ return;
+ }
+ }
+ }
+ scan_extent_node(ctx, pctx, pb, extent.e_lblk,
+ last_lblk, eof_block, ehandle);
if (pctx->errcode)
return;
pctx->errcode = ext2fs_extent_get(ehandle,
}
pb->fragmented = 1;
}
- while (is_dir && ++pb->last_db_block < extent.e_lblk) {
+ /*
+ * If we notice a gap in the logical block mappings of an
+ * extent-mapped directory, offer to close the hole by
+ * moving the logical block down, otherwise we'll go mad in
+ * pass 3 allocating empty directory blocks to fill the hole.
+ */
+ if (is_dir &&
+ pb->last_block + 1 < (e2_blkcnt_t)extent.e_lblk) {
+ blk64_t new_lblk;
+
+ new_lblk = pb->last_block + 1;
+ if (EXT2FS_CLUSTER_RATIO(ctx->fs) > 1)
+ new_lblk = ((new_lblk +
+ EXT2FS_CLUSTER_RATIO(ctx->fs)) &
+ EXT2FS_CLUSTER_MASK(ctx->fs)) |
+ (extent.e_lblk &
+ EXT2FS_CLUSTER_MASK(ctx->fs));
+ pctx->blk = extent.e_lblk;
+ pctx->blk2 = new_lblk;
+ if (fix_problem(ctx, PR_1_COLLAPSE_DBLOCK, pctx)) {
+ extent.e_lblk = new_lblk;
+ pb->inode_modified = 1;
+ pctx->errcode = ext2fs_extent_replace(ehandle,
+ 0, &extent);
+ if (pctx->errcode) {
+ pctx->errcode = 0;
+ goto alloc_later;
+ }
+ pctx->errcode = ext2fs_extent_fix_parents(ehandle);
+ if (pctx->errcode)
+ goto failed_add_dir_block;
+ pctx->errcode = ext2fs_extent_goto(ehandle,
+ extent.e_lblk);
+ if (pctx->errcode)
+ goto failed_add_dir_block;
+ last_lblk = extent.e_lblk + extent.e_len - 1;
+ }
+ }
+alloc_later:
+ while (is_dir && (++pb->last_db_block <
+ (e2_blkcnt_t) extent.e_lblk)) {
pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist,
pb->ino, 0,
pb->last_db_block);
goto failed_add_dir_block;
}
}
+ if (!ctx->fs->cluster_ratio_bits) {
+ mark_blocks_used(ctx, extent.e_pblk, extent.e_len);
+ pb->num_blocks += extent.e_len;
+ }
for (blk = extent.e_pblk, blockcnt = extent.e_lblk, i = 0;
i < extent.e_len;
blk++, blockcnt++, i++) {
- if (!(ctx->fs->cluster_ratio_bits &&
- pb->previous_block &&
+ if (ctx->fs->cluster_ratio_bits &&
+ !(pb->previous_block &&
(EXT2FS_B2C(ctx->fs, blk) ==
EXT2FS_B2C(ctx->fs, pb->previous_block)) &&
(blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
- (blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
+ ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
mark_block_used(ctx, blk);
pb->num_blocks++;
}
-
+ if (has_unaligned_cluster_map(ctx, pb->previous_block,
+ pb->last_block, blk,
+ blockcnt)) {
+ pctx->blk = blockcnt;
+ pctx->blk2 = blk;
+ fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
+ mark_block_used(ctx, blk);
+ mark_block_used(ctx, blk);
+ }
+ pb->last_block = blockcnt;
pb->previous_block = blk;
if (is_dir) {
if (is_dir && extent.e_len > 0)
pb->last_db_block = blockcnt - 1;
pb->previous_block = extent.e_pblk + extent.e_len - 1;
- start_block = pb->last_block = extent.e_lblk + extent.e_len - 1;
+ start_block = pb->last_block = last_lblk;
if (is_leaf && !is_dir &&
!(extent.e_flags & EXT2_EXTENT_FLAGS_UNINIT))
- pb->last_init_lblock = extent.e_lblk + extent.e_len - 1;
+ pb->last_init_lblock = last_lblk;
next:
pctx->errcode = ext2fs_extent_get(ehandle,
EXT2_EXTENT_NEXT_SIB,
ext2_filsys fs = ctx->fs;
ext2_ino_t ino = pctx->ino;
errcode_t retval;
+ blk64_t eof_lblk;
pctx->errcode = ext2fs_extent_open2(fs, ino, inode, &ehandle);
if (pctx->errcode) {
ctx->extent_depth_count[info.max_depth]++;
}
- scan_extent_node(ctx, pctx, pb, 0, ehandle);
+ eof_lblk = ((EXT2_I_SIZE(inode) + fs->blocksize - 1) >>
+ EXT2_BLOCK_SIZE_BITS(fs->super)) - 1;
+ scan_extent_node(ctx, pctx, pb, 0, 0, eof_lblk, ehandle);
if (pctx->errcode &&
fix_problem(ctx, PR_1_EXTENT_ITERATE_FAILURE, pctx)) {
pb->num_blocks = 0;
struct process_block_struct pb;
ext2_ino_t ino = pctx->ino;
struct ext2_inode *inode = pctx->inode;
- int bad_size = 0;
+ unsigned bad_size = 0;
int dirty_inode = 0;
int extent_fs;
__u64 size;
pb.inode = inode;
pb.pctx = pctx;
pb.ctx = ctx;
+ pb.inode_modified = 0;
pctx->ino = ino;
pctx->errcode = 0;
EXT2_FEATURE_INCOMPAT_COMPRESSION)
pb.compressed = 1;
else {
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_COMPR_SET, pctx)) {
inode->i_flags &= ~EXT2_COMPRBLK_FL;
dirty_inode++;
if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
check_blocks_extents(ctx, pctx, &pb);
else {
+ /*
+ * If we've modified the inode, write it out before
+ * iterate() tries to use it.
+ */
+ if (dirty_inode) {
+ e2fsck_write_inode(ctx, ino, inode,
+ "check_blocks");
+ dirty_inode = 0;
+ }
pctx->errcode = ext2fs_block_iterate3(fs, ino,
pb.is_dir ? BLOCK_FLAG_HOLE : 0,
block_buf, process_block, &pb);
* files.
*/
pb.last_init_lblock = pb.last_block;
+ /*
+ * If iterate() changed a block mapping, we have to
+ * re-read the inode. If we decide to clear the
+ * inode after clearing some stuff, we'll re-write the
+ * bad mappings into the inode!
+ */
+ if (pb.inode_modified)
+ e2fsck_read_inode(ctx, ino, inode,
+ "check_blocks");
}
}
end_problem_latch(ctx, PR_LATCH_BLOCK);
}
if (!pb.num_blocks && pb.is_dir) {
+ /*
+ * The mode might be in-correct. Increasing the badness by
+ * small amount won't hurt much.
+ */
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
ctx->fs_directory_count--;
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. */
(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)) &&
if (bad_size && !LINUX_S_ISLNK(inode->i_mode)) {
pctx->num = (pb.last_block+1) * fs->blocksize;
pctx->group = bad_size;
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_BAD_I_SIZE, pctx)) {
- inode->i_size = pctx->num;
- if (!LINUX_S_ISDIR(inode->i_mode))
- inode->i_size_high = pctx->num >> 32;
+ if (LINUX_S_ISDIR(inode->i_mode))
+ pctx->num &= 0xFFFFFFFFULL;
+ ext2fs_inode_size_set(fs, inode, pctx->num);
dirty_inode++;
}
pctx->num = 0;
}
- if (LINUX_S_ISREG(inode->i_mode) && EXT2_I_SIZE(inode) >= 0x80000000UL)
+ if (LINUX_S_ISREG(inode->i_mode) &&
+ ext2fs_needs_large_file_feature(EXT2_I_SIZE(inode)))
ctx->large_files++;
- if ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
- ((fs->super->s_feature_ro_compat &
- EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
- (inode->i_flags & EXT4_HUGE_FILE_FL) &&
- (inode->osd2.linux2.l_i_blocks_hi != 0))) {
+ if ((fs->super->s_creator_os == EXT2_OS_LINUX) &&
+ ((pb.num_blocks != ext2fs_inode_i_blocks(fs, inode)) ||
+ ((fs->super->s_feature_ro_compat &
+ EXT4_FEATURE_RO_COMPAT_HUGE_FILE) &&
+ (inode->i_flags & EXT4_HUGE_FILE_FL) &&
+ (inode->osd2.linux2.l_i_blocks_hi != 0)))) {
pctx->num = pb.num_blocks;
+ e2fsck_mark_inode_bad(ctx, ino, BADNESS_NORMAL);
if (fix_problem(ctx, PR_1_BAD_I_BLOCKS, pctx)) {
inode->i_blocks = pb.num_blocks;
inode->osd2.linux2.l_i_blocks_hi = pb.num_blocks >> 32;
struct problem_context *pctx;
blk64_t blk = *block_nr;
int ret_code = 0;
- int problem = 0;
+ problem_t problem = 0;
e2fsck_t ctx;
p = (struct process_block_struct *) priv_data;
return 0;
}
+ /*
+ * For a directory, add logical block zero for processing even if it's
+ * not mapped or we'll be perennially stuck with broken "." and ".."
+ * entries.
+ */
+ if (p->is_dir && blockcnt == 0 && blk == 0) {
+ pctx->errcode = ext2fs_add_dir_block2(fs->dblist, p->ino, 0, 0);
+ if (pctx->errcode) {
+ pctx->blk = blk;
+ pctx->num = blockcnt;
+ goto failed_add_dir_block;
+ }
+ p->last_db_block++;
+ }
+
if (blk == 0)
return 0;
problem = PR_1_TOOBIG_SYMLINK;
if (blk < fs->super->s_first_data_block ||
- blk >= ext2fs_blocks_count(fs->super))
+ blk >= ext2fs_blocks_count(fs->super)) {
problem = PR_1_ILLEGAL_BLOCK_NUM;
+ e2fsck_mark_inode_bad(ctx, pctx->ino, BADNESS_NORMAL);
+ }
if (problem) {
p->num_illegal_blocks++;
if (fix_problem(ctx, problem, pctx)) {
blk = *block_nr = 0;
ret_code = BLOCK_CHANGED;
+ p->inode_modified = 1;
+ /*
+ * If the directory block is too big and is beyond the
+ * end of the FS, don't bother trying to add it for
+ * processing -- the kernel would never have created a
+ * directory this large, and we risk an ENOMEM abort.
+ * In any case, the toobig handler for extent-based
+ * directories also doesn't feed toobig blocks to
+ * pass 2.
+ */
+ if (problem == PR_1_TOOBIG_DIR)
+ return ret_code;
goto mark_dir;
} else
return 0;
(EXT2FS_B2C(ctx->fs, blk) ==
EXT2FS_B2C(ctx->fs, p->previous_block)) &&
(blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
- (blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
+ ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
mark_block_used(ctx, blk);
p->num_blocks++;
+ } else if (has_unaligned_cluster_map(ctx, p->previous_block,
+ p->last_block, blk, blockcnt)) {
+ pctx->blk = blockcnt;
+ pctx->blk2 = blk;
+ fix_problem(ctx, PR_1_MISALIGNED_CLUSTER, pctx);
+ mark_block_used(ctx, blk);
+ mark_block_used(ctx, blk);
}
if (blockcnt >= 0)
p->last_block = blockcnt;
return 0;
}
-static void new_table_block(e2fsck_t ctx, blk_t first_block, int group,
+static void new_table_block(e2fsck_t ctx, blk64_t first_block, dgrp_t group,
const char *name, int num, blk64_t *new_block)
{
ext2_filsys fs = ctx->fs;
dgrp_t last_grp;
blk64_t old_block = *new_block;
blk64_t last_block;
- int i, is_flexbg, flexbg, flexbg_size;
+ dgrp_t flexbg;
+ unsigned flexbg_size;
+ int i, is_flexbg;
char *buf;
struct problem_context pctx;
first_block = ext2fs_group_first_block2(fs,
flexbg_size * flexbg);
last_grp = group | (flexbg_size - 1);
- if (last_grp > fs->group_desc_count)
- last_grp = fs->group_desc_count;
+ if (last_grp >= fs->group_desc_count)
+ last_grp = fs->group_desc_count - 1;
last_block = ext2fs_group_last_block2(fs, last_grp);
} else
last_block = ext2fs_group_last_block2(fs, group);
ext2_filsys fs = ctx->fs;
blk64_t b;
dgrp_t i;
- int j;
+ unsigned int j;
struct problem_context pctx;
clear_problem_context(&pctx);
if ((ino != ctx->stashed_ino) || !ctx->stashed_inode)
return EXT2_ET_CALLBACK_NOTHANDLED;
- *inode = *ctx->stashed_inode;
+ *inode = *(struct ext2_inode *)ctx->stashed_inode;
return 0;
}
e2fsck_t ctx = (e2fsck_t) fs->priv_data;
if ((ino == ctx->stashed_ino) && ctx->stashed_inode &&
- (inode != ctx->stashed_inode))
- *ctx->stashed_inode = *inode;
+ (inode != (struct ext2_inode *)ctx->stashed_inode))
+ *(struct ext2_inode *)ctx->stashed_inode = *inode;
return EXT2_ET_CALLBACK_NOTHANDLED;
}
return (0);
}
-static void e2fsck_block_alloc_stats(ext2_filsys fs, blk64_t blk, int inuse)
-{
- e2fsck_t ctx = (e2fsck_t) fs->priv_data;
-
- if (ctx->block_found_map) {
- if (inuse > 0)
- ext2fs_mark_block_bitmap2(ctx->block_found_map, blk);
- else
- ext2fs_unmark_block_bitmap2(ctx->block_found_map, blk);
- }
-}
-
-void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int bool)
+void e2fsck_use_inode_shortcuts(e2fsck_t ctx, int use_shortcuts)
{
ext2_filsys fs = ctx->fs;
- if (bool) {
+ if (use_shortcuts) {
fs->get_blocks = pass1_get_blocks;
fs->check_directory = pass1_check_directory;
fs->read_inode = pass1_read_inode;
fs->write_inode = pass1_write_inode;
ctx->stashed_ino = 0;
- ext2fs_set_alloc_block_callback(fs, e2fsck_get_alloc_block,
- 0);
- ext2fs_set_block_alloc_stats_callback(fs,
- e2fsck_block_alloc_stats,
- 0);
} else {
fs->get_blocks = 0;
fs->check_directory = 0;
fs->write_inode = 0;
}
}
+
+void e2fsck_intercept_block_allocations(e2fsck_t ctx)
+{
+ ext2fs_set_alloc_block_callback(ctx->fs, e2fsck_get_alloc_block, 0);
+ ext2fs_set_block_alloc_stats_callback(ctx->fs,
+ e2fsck_block_alloc_stats, 0);
+}