EXT2_FEATURE_INCOMPAT_FILETYPE |
EXT3_FEATURE_INCOMPAT_EXTENTS |
EXT4_FEATURE_INCOMPAT_FLEX_BG |
+ EXT4_FEATURE_INCOMPAT_EA_INODE|
EXT4_FEATURE_INCOMPAT_MMP |
EXT4_FEATURE_INCOMPAT_64BIT |
EXT4_FEATURE_INCOMPAT_ENCRYPT |
- EXT4_FEATURE_INCOMPAT_CSUM_SEED,
+ EXT4_FEATURE_INCOMPAT_CSUM_SEED |
+ EXT4_FEATURE_INCOMPAT_LARGEDIR,
/* R/O compat */
EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
EXT4_FEATURE_RO_COMPAT_QUOTA |
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM |
EXT4_FEATURE_RO_COMPAT_READONLY |
- EXT4_FEATURE_RO_COMPAT_PROJECT
+ EXT4_FEATURE_RO_COMPAT_PROJECT |
+ EXT4_FEATURE_RO_COMPAT_VERITY
};
static __u32 clear_ok_features[3] = {
jsb = (journal_superblock_t *) buf;
/* Find the filesystem UUID */
nr_users = ntohl(jsb->s_nr_users);
+ if (nr_users > JFS_USERS_MAX) {
+ fprintf(stderr, _("Journal superblock is corrupted, nr_users\n"
+ "is too high (%d).\n"), nr_users);
+ commit_remove_journal = 1;
+ goto no_valid_journal;
+ }
if (!journal_user(fs->super->s_uuid, jsb->s_users, nr_users)) {
fputs(_("Filesystem's UUID not found on journal device.\n"),
fprintf(stderr, _("' to disable 64-bit mode.\n"));
}
-/* Rewrite extents */
-static errcode_t rewrite_extents(ext2_filsys fs, ext2_ino_t ino,
- struct ext2_inode *inode)
-{
- ext2_extent_handle_t handle;
- struct ext2fs_extent extent;
- errcode_t errcode;
- struct ext2_extent_info info;
-
- if (!(inode->i_flags & EXT4_EXTENTS_FL) ||
- !ext2fs_has_feature_metadata_csum(fs->super))
- return 0;
-
- errcode = ext2fs_extent_open(fs, ino, &handle);
- if (errcode)
- return errcode;
-
- errcode = ext2fs_extent_get(handle, EXT2_EXTENT_ROOT, &extent);
- if (errcode)
- goto out;
-
- do {
- errcode = ext2fs_extent_get_info(handle, &info);
- if (errcode)
- break;
-
- /*
- * If this is the first extent in an extent block that we
- * haven't visited, rewrite the extent to force the ETB
- * checksum to be rewritten.
- */
- if (info.curr_entry == 1 && info.curr_level != 0 &&
- !(extent.e_flags & EXT2_EXTENT_FLAGS_SECOND_VISIT)) {
- errcode = ext2fs_extent_replace(handle, 0, &extent);
- if (errcode)
- break;
- }
-
- /* Skip to the end of a block of leaf nodes */
- if (extent.e_flags & EXT2_EXTENT_FLAGS_LEAF) {
- errcode = ext2fs_extent_get(handle,
- EXT2_EXTENT_LAST_SIB,
- &extent);
- if (errcode)
- break;
- }
-
- errcode = ext2fs_extent_get(handle, EXT2_EXTENT_NEXT, &extent);
- } while (errcode == 0);
-
-out:
- /* Ok if we run off the end */
- if (errcode == EXT2_ET_EXTENT_NO_NEXT)
- errcode = 0;
- ext2fs_extent_free(handle);
- return errcode;
-}
-
/*
* Rewrite directory blocks with checksums
*/
}
/*
+ * Context information that does not change across rewrite_one_inode()
+ * invocations.
+ */
+struct rewrite_context {
+ ext2_filsys fs;
+ struct ext2_inode *zero_inode;
+ char *ea_buf;
+ int inode_size;
+};
+
+#define fatal_err(code, args...) \
+ do { \
+ com_err(__func__, code, args); \
+ exit(1); \
+ } while (0);
+
+static void update_ea_inode_hash(struct rewrite_context *ctx, ext2_ino_t ino,
+ struct ext2_inode *inode)
+{
+ errcode_t retval;
+ ext2_file_t file;
+ __u32 hash;
+
+ retval = ext2fs_file_open(ctx->fs, ino, 0, &file);
+ if (retval)
+ fatal_err(retval, "open ea_inode");
+ retval = ext2fs_file_read(file, ctx->ea_buf, inode->i_size,
+ NULL);
+ if (retval)
+ fatal_err(retval, "read ea_inode");
+ retval = ext2fs_file_close(file);
+ if (retval)
+ fatal_err(retval, "close ea_inode");
+
+ hash = ext2fs_crc32c_le(ctx->fs->csum_seed,
+ (unsigned char *) ctx->ea_buf, inode->i_size);
+ ext2fs_set_ea_inode_hash(inode, hash);
+}
+
+static int update_xattr_entry_hashes(ext2_filsys fs,
+ struct ext2_ext_attr_entry *entry,
+ struct ext2_ext_attr_entry *end)
+{
+ int modified = 0;
+ errcode_t retval;
+
+ while (entry < end && !EXT2_EXT_IS_LAST_ENTRY(entry)) {
+ if (entry->e_value_inum) {
+ retval = ext2fs_ext_attr_hash_entry2(fs, entry, NULL,
+ &entry->e_hash);
+ if (retval)
+ fatal_err(retval, "hash ea_inode entry");
+ modified = 1;
+ }
+ entry = EXT2_EXT_ATTR_NEXT(entry);
+ }
+ return modified;
+}
+
+static void update_inline_xattr_hashes(struct rewrite_context *ctx,
+ struct ext2_inode_large *inode)
+{
+ struct ext2_ext_attr_entry *start, *end;
+ __u32 *ea_magic;
+
+ if (inode->i_extra_isize == 0)
+ return;
+
+ if (inode->i_extra_isize & 3 ||
+ inode->i_extra_isize > ctx->inode_size - EXT2_GOOD_OLD_INODE_SIZE)
+ fatal_err(EXT2_ET_INODE_CORRUPTED, "bad i_extra_isize")
+
+ ea_magic = (__u32 *)((char *)inode + EXT2_GOOD_OLD_INODE_SIZE +
+ inode->i_extra_isize);
+ if (*ea_magic != EXT2_EXT_ATTR_MAGIC)
+ return;
+
+ start = (struct ext2_ext_attr_entry *)(ea_magic + 1);
+ end = (struct ext2_ext_attr_entry *)((char *)inode + ctx->inode_size);
+
+ update_xattr_entry_hashes(ctx->fs, start, end);
+}
+
+static void update_block_xattr_hashes(struct rewrite_context *ctx,
+ char *block_buf)
+{
+ struct ext2_ext_attr_header *header;
+ struct ext2_ext_attr_entry *start, *end;
+
+ header = (struct ext2_ext_attr_header *)block_buf;
+ if (header->h_magic != EXT2_EXT_ATTR_MAGIC)
+ return;
+
+ start = (struct ext2_ext_attr_entry *)(header+1);
+ end = (struct ext2_ext_attr_entry *)(block_buf + ctx->fs->blocksize);
+
+ if (update_xattr_entry_hashes(ctx->fs, start, end))
+ ext2fs_ext_attr_block_rehash(header, end);
+}
+
+static void rewrite_one_inode(struct rewrite_context *ctx, ext2_ino_t ino,
+ struct ext2_inode *inode)
+{
+ blk64_t file_acl_block;
+ errcode_t retval;
+
+ if (!ext2fs_test_inode_bitmap2(ctx->fs->inode_map, ino)) {
+ if (!memcmp(inode, ctx->zero_inode, ctx->inode_size))
+ return;
+ memset(inode, 0, ctx->inode_size);
+ }
+
+ if (inode->i_flags & EXT4_EA_INODE_FL)
+ update_ea_inode_hash(ctx, ino, inode);
+
+ if (ctx->inode_size != EXT2_GOOD_OLD_INODE_SIZE)
+ update_inline_xattr_hashes(ctx,
+ (struct ext2_inode_large *)inode);
+
+ retval = ext2fs_write_inode_full(ctx->fs, ino, inode, ctx->inode_size);
+ if (retval)
+ fatal_err(retval, "while writing inode");
+
+ retval = ext2fs_fix_extents_checksums(ctx->fs, ino, inode);
+ if (retval)
+ fatal_err(retval, "while rewriting extents");
+
+ if (LINUX_S_ISDIR(inode->i_mode) &&
+ ext2fs_inode_has_valid_blocks2(ctx->fs, inode)) {
+ retval = rewrite_directory(ctx->fs, ino, inode);
+ if (retval)
+ fatal_err(retval, "while rewriting directories");
+ }
+
+ file_acl_block = ext2fs_file_acl_block(ctx->fs, inode);
+ if (!file_acl_block)
+ return;
+
+ retval = ext2fs_read_ext_attr3(ctx->fs, file_acl_block, ctx->ea_buf,
+ ino);
+ if (retval)
+ fatal_err(retval, "while rewriting extended attribute");
+
+ update_block_xattr_hashes(ctx, ctx->ea_buf);
+ retval = ext2fs_write_ext_attr3(ctx->fs, file_acl_block, ctx->ea_buf,
+ ino);
+ if (retval)
+ fatal_err(retval, "while rewriting extended attribute");
+}
+
+/*
* Forcibly set checksums in all inodes.
*/
static void rewrite_inodes(ext2_filsys fs)
{
- int length = EXT2_INODE_SIZE(fs->super);
- struct ext2_inode *inode, *zero;
- char *ea_buf;
ext2_inode_scan scan;
errcode_t retval;
ext2_ino_t ino;
- blk64_t file_acl_block;
- int inode_dirty;
+ struct ext2_inode *inode;
+ int pass;
+ struct rewrite_context ctx = {
+ .fs = fs,
+ .inode_size = EXT2_INODE_SIZE(fs->super),
+ };
if (fs->super->s_creator_os == EXT2_OS_HURD)
return;
- retval = ext2fs_open_inode_scan(fs, 0, &scan);
- if (retval) {
- com_err("set_csum", retval, "while opening inode scan");
- exit(1);
- }
-
- retval = ext2fs_get_mem(length, &inode);
- if (retval) {
- com_err("set_csum", retval, "while allocating memory");
- exit(1);
- }
-
- retval = ext2fs_get_memzero(length, &zero);
- if (retval) {
- com_err("set_csum", retval, "while allocating memory");
- exit(1);
- }
+ retval = ext2fs_get_mem(ctx.inode_size, &inode);
+ if (retval)
+ fatal_err(retval, "while allocating memory");
- retval = ext2fs_get_mem(fs->blocksize, &ea_buf);
- if (retval) {
- com_err("set_csum", retval, "while allocating memory");
- exit(1);
- }
+ retval = ext2fs_get_memzero(ctx.inode_size, &ctx.zero_inode);
+ if (retval)
+ fatal_err(retval, "while allocating memory");
- do {
- retval = ext2fs_get_next_inode_full(scan, &ino, inode, length);
- if (retval) {
- com_err("set_csum", retval, "while getting next inode");
- exit(1);
- }
- if (!ino)
- break;
- if (ext2fs_test_inode_bitmap2(fs->inode_map, ino)) {
- inode_dirty = 1;
- } else {
- if (memcmp(inode, zero, length) != 0) {
- memset(inode, 0, length);
- inode_dirty = 1;
- } else {
- inode_dirty = 0;
- }
- }
+ retval = ext2fs_get_mem(64 * 1024, &ctx.ea_buf);
+ if (retval)
+ fatal_err(retval, "while allocating memory");
- if (inode_dirty) {
- retval = ext2fs_write_inode_full(fs, ino, inode,
- length);
- if (retval) {
- com_err("set_csum", retval, "while writing "
- "inode");
- exit(1);
- }
- }
+ /*
+ * Extended attribute inodes have a lookup hash that needs to be
+ * recalculated with the new csum_seed. Other inodes referencing xattr
+ * inodes need this value to be up to date. That's why we do two passes:
+ *
+ * pass 1: update xattr inodes to update their lookup hash as well as
+ * other checksums.
+ *
+ * pass 2: go over other inodes to update their checksums.
+ */
+ if (ext2fs_has_feature_ea_inode(fs->super))
+ pass = 1;
+ else
+ pass = 2;
+ for (;pass <= 2; pass++) {
+ retval = ext2fs_open_inode_scan(fs, 0, &scan);
+ if (retval)
+ fatal_err(retval, "while opening inode scan");
- retval = rewrite_extents(fs, ino, inode);
- if (retval) {
- com_err("rewrite_extents", retval,
- "while rewriting extents");
- exit(1);
- }
+ do {
+ retval = ext2fs_get_next_inode_full(scan, &ino, inode,
+ ctx.inode_size);
+ if (retval)
+ fatal_err(retval, "while getting next inode");
+ if (!ino)
+ break;
- if (LINUX_S_ISDIR(inode->i_mode) &&
- ext2fs_inode_has_valid_blocks2(fs, inode)) {
- retval = rewrite_directory(fs, ino, inode);
- if (retval) {
- com_err("rewrite_directory", retval,
- "while rewriting directories");
- exit(1);
- }
- }
+ if (((pass == 1) &&
+ (inode->i_flags & EXT4_EA_INODE_FL)) ||
+ ((pass == 2) &&
+ !(inode->i_flags & EXT4_EA_INODE_FL)))
+ rewrite_one_inode(&ctx, ino, inode);
+ } while (ino);
- file_acl_block = ext2fs_file_acl_block(fs, inode);
- if (!file_acl_block)
- continue;
- retval = ext2fs_read_ext_attr3(fs, file_acl_block, ea_buf, ino);
- if (retval) {
- com_err("rewrite_eablock", retval,
- "while rewriting extended attribute");
- exit(1);
- }
- retval = ext2fs_write_ext_attr3(fs, file_acl_block, ea_buf,
- ino);
- if (retval) {
- com_err("rewrite_eablock", retval,
- "while rewriting extended attribute");
- exit(1);
- }
- } while (ino);
+ ext2fs_close_inode_scan(scan);
+ }
- ext2fs_free_mem(&zero);
+ ext2fs_free_mem(&ctx.zero_inode);
+ ext2fs_free_mem(&ctx.ea_buf);
ext2fs_free_mem(&inode);
- ext2fs_free_mem(&ea_buf);
- ext2fs_close_inode_scan(scan);
}
static void rewrite_metadata_checksums(ext2_filsys fs)
for (i = 0; i < fs->group_desc_count; i++)
ext2fs_group_desc_csum_set(fs, i);
retval = ext2fs_read_bitmaps(fs);
- if (retval) {
- com_err("rewrite_metadata_checksums", retval,
- "while reading bitmaps");
- exit(1);
- }
+ if (retval)
+ fatal_err(retval, "while reading bitmaps");
rewrite_inodes(fs);
ext2fs_mark_ib_dirty(fs);
ext2fs_mark_bb_dirty(fs);
}
if (FEATURE_ON(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_ENCRYPT)) {
+ if (ext2fs_has_feature_casefold(sb)) {
+ fputs(_("Cannot enable encrypt feature on filesystems "
+ "with the encoding feature enabled.\n"),
+ stderr);
+ return 1;
+ }
fs->super->s_encrypt_algos[0] =
EXT4_ENCRYPTION_MODE_AES_256_XTS;
fs->super->s_encrypt_algos[1] =
uuid_seed = ext2fs_crc32c_le(~0, fs->super->s_uuid,
sizeof(fs->super->s_uuid));
- if (fs->super->s_checksum_seed != uuid_seed &&
- (mount_flags & EXT2_MF_MOUNTED)) {
- fputs(_("UUID has changed since enabling "
- "metadata_csum. Filesystem must be unmounted "
- "\nto safely rewrite all metadata to "
- "match the new UUID.\n"), stderr);
- return 1;
+ if (fs->super->s_checksum_seed != uuid_seed) {
+ if (mount_flags & (EXT2_MF_BUSY|EXT2_MF_MOUNTED)) {
+ fputs(_("UUID has changed since enabling "
+ "metadata_csum. Filesystem must be unmounted "
+ "\nto safely rewrite all metadata to match the new UUID.\n"),
+ stderr);
+ return 1;
+ }
+ check_fsck_needed(fs, _("Recalculating checksums "
+ "could take some time."));
+ rewrite_checksums = 1;
}
-
- rewrite_checksums = 1;
}
if (sb->s_rev_level == EXT2_GOOD_OLD_REV &&
intv);
fs->super->s_mmp_update_interval = intv;
ext2fs_mark_super_dirty(fs);
+ } else if (!strcmp(token, "force_fsck")) {
+ fs->super->s_state |= EXT2_ERROR_FS;
+ printf(_("Setting filesystem error flag to force fsck.\n"));
+ ext2fs_mark_super_dirty(fs);
} else if (!strcmp(token, "test_fs")) {
fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
printf("Setting test filesystem flag\n");
"\tmmp_update_interval=<mmp update interval in seconds>\n"
"\tstride=<RAID per-disk chunk size in blocks>\n"
"\tstripe_width=<RAID stride*data disks in blocks>\n"
+ "\tforce_fsck\n"
"\ttest_fs\n"
"\t^test_fs\n"));
free(buf);
jsb = (journal_superblock_t *) buf;
/* Find the filesystem UUID */
nr_users = ntohl(jsb->s_nr_users);
+ if (nr_users > JFS_USERS_MAX) {
+ fprintf(stderr, _("Journal superblock is corrupted, nr_users\n"
+ "is too high (%d).\n"), nr_users);
+ return EXT2_ET_CORRUPT_JOURNAL_SB;
+ }
j_uuid = journal_user(old_uuid, jsb->s_users, nr_users);
if (j_uuid == NULL) {
ext2fs_close_free(&fs);
exit(1);
}
+ sb = fs->super;
}
#endif
char buf[SUPERBLOCK_SIZE] __attribute__ ((aligned(8)));
__u8 old_uuid[UUID_SIZE];
+ if (!ext2fs_has_feature_csum_seed(fs->super) &&
+ (ext2fs_has_feature_metadata_csum(fs->super) ||
+ ext2fs_has_feature_ea_inode(fs->super))) {
+ check_fsck_needed(fs,
+ _("Setting the UUID on this "
+ "filesystem could take some time."));
+ rewrite_checksums = 1;
+ }
+
if (ext2fs_has_group_desc_csum(fs)) {
/*
* Changing the UUID on a metadata_csum FS requires
try_confirm_csum_seed_support();
exit(1);
}
- if (!ext2fs_has_feature_csum_seed(fs->super))
- check_fsck_needed(fs,
- _("Setting UUID on a checksummed "
- "filesystem could take some time."));
/*
* Determine if the block group checksums are
}
ext2fs_mark_super_dirty(fs);
- if (ext2fs_has_feature_metadata_csum(fs->super) &&
- !ext2fs_has_feature_csum_seed(fs->super))
- rewrite_checksums = 1;
}
if (I_flag) {
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff