47 static int inherit_flags(const struct inode *dir, umode_t mode)  in inherit_flags()  argument
50 	const struct ubifs_inode *ui = ubifs_inode(dir);  in inherit_flags()
52 	if (!S_ISDIR(dir->i_mode))  in inherit_flags()
76 struct inode *ubifs_new_inode(struct ubifs_info *c, struct inode *dir,  in ubifs_new_inode()  argument
97 	inode_init_owner(inode, dir, mode);  in ubifs_new_inode()
102 	err = fscrypt_prepare_new_inode(dir, inode, &encrypted);  in ubifs_new_inode()
132 	ui->flags = inherit_flags(dir, mode);  in ubifs_new_inode()
193 static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,  in ubifs_lookup()  argument
200 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_lookup()
203 	dbg_gen("'%pd' in dir ino %lu", dentry, dir->i_ino);  in ubifs_lookup()
205 	err = fscrypt_prepare_lookup(dir, dentry, &nm);  in ubifs_lookup()
225 		dent_key_init_hash(c, &key, dir->i_ino, nm.hash);  in ubifs_lookup()
228 		dent_key_init(c, &key, dir->i_ino, &nm);  in ubifs_lookup()
245 	inode = ubifs_iget(dir->i_sb, le64_to_cpu(dent->inum));  in ubifs_lookup()
258 	if (IS_ENCRYPTED(dir) &&  in ubifs_lookup()
260 	    !fscrypt_has_permitted_context(dir, inode)) {  in ubifs_lookup()
262 			   dir->i_ino, inode->i_ino);  in ubifs_lookup()
273 static int ubifs_create(struct inode *dir, struct dentry *dentry, umode_t mode,  in ubifs_create()  argument
277 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_create()
280 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_create()
290 		dentry, mode, dir->i_ino);  in ubifs_create()
296 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in ubifs_create()
302 	inode = ubifs_new_inode(c, dir, mode);  in ubifs_create()
308 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_create()
313 	dir->i_size += sz_change;  in ubifs_create()
314 	dir_ui->ui_size = dir->i_size;  in ubifs_create()
315 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_create()
316 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_create()
328 	dir->i_size -= sz_change;  in ubifs_create()
329 	dir_ui->ui_size = dir->i_size;  in ubifs_create()
342 static int do_tmpfile(struct inode *dir, struct dentry *dentry,  in do_tmpfile()  argument
346 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in do_tmpfile()
349 	struct ubifs_inode *ui, *dir_ui = ubifs_inode(dir);  in do_tmpfile()
359 		dentry, mode, dir->i_ino);  in do_tmpfile()
361 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in do_tmpfile()
378 	inode = ubifs_new_inode(c, dir, mode);  in do_tmpfile()
390 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in do_tmpfile()
410 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in do_tmpfile()
434 static int ubifs_tmpfile(struct inode *dir, struct dentry *dentry,  in ubifs_tmpfile()  argument
437 	return do_tmpfile(dir, dentry, mode, NULL);  in ubifs_tmpfile()
494 	struct inode *dir = file_inode(file);  in ubifs_readdir()  local
495 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_readdir()
496 	bool encrypted = IS_ENCRYPTED(dir);  in ubifs_readdir()
498 	dbg_gen("dir ino %lu, f_pos %#llx", dir->i_ino, ctx->pos);  in ubifs_readdir()
508 		err = fscrypt_get_encryption_info(dir);  in ubifs_readdir()
547 		lowest_dent_key(c, &key, dir->i_ino);  in ubifs_readdir()
565 		dent_key_init_hash(c, &key, dir->i_ino, ctx->pos);  in ubifs_readdir()
581 			     ubifs_inode(dir)->creat_sqnum);  in ubifs_readdir()
589 			err = fscrypt_fname_disk_to_usr(dir, key_hash_flash(c,  in ubifs_readdir()
646 static int ubifs_dir_release(struct inode *dir, struct file *file)  in ubifs_dir_release()  argument
679 static int ubifs_link(struct dentry *old_dentry, struct inode *dir,  in ubifs_link()  argument
682 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_link()
685 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_link()
698 		inode->i_nlink, dir->i_ino);  in ubifs_link()
699 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_link()
702 	err = fscrypt_prepare_link(old_dentry, dir, dentry);  in ubifs_link()
706 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in ubifs_link()
718 	lock_2_inodes(dir, inode);  in ubifs_link()
727 	dir->i_size += sz_change;  in ubifs_link()
728 	dir_ui->ui_size = dir->i_size;  in ubifs_link()
729 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_link()
730 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_link()
733 	unlock_2_inodes(dir, inode);  in ubifs_link()
741 	dir->i_size -= sz_change;  in ubifs_link()
742 	dir_ui->ui_size = dir->i_size;  in ubifs_link()
746 	unlock_2_inodes(dir, inode);  in ubifs_link()
754 static int ubifs_unlink(struct inode *dir, struct dentry *dentry)  in ubifs_unlink()  argument
756 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_unlink()
758 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_unlink()
773 		inode->i_nlink, dir->i_ino);  in ubifs_unlink()
775 	err = fscrypt_setup_filename(dir, &dentry->d_name, 1, &nm);  in ubifs_unlink()
785 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_unlink()
798 	lock_2_inodes(dir, inode);  in ubifs_unlink()
799 	inode->i_ctime = current_time(dir);  in ubifs_unlink()
801 	dir->i_size -= sz_change;  in ubifs_unlink()
802 	dir_ui->ui_size = dir->i_size;  in ubifs_unlink()
803 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_unlink()
804 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in ubifs_unlink()
807 	unlock_2_inodes(dir, inode);  in ubifs_unlink()
820 	dir->i_size += sz_change;  in ubifs_unlink()
821 	dir_ui->ui_size = dir->i_size;  in ubifs_unlink()
823 	unlock_2_inodes(dir, inode);  in ubifs_unlink()
839 int ubifs_check_dir_empty(struct inode *dir)  in ubifs_check_dir_empty()  argument
841 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_check_dir_empty()
847 	lowest_dent_key(c, &key, dir->i_ino);  in ubifs_check_dir_empty()
860 static int ubifs_rmdir(struct inode *dir, struct dentry *dentry)  in ubifs_rmdir()  argument
862 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_rmdir()
865 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_rmdir()
876 		inode->i_ino, dir->i_ino);  in ubifs_rmdir()
877 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_rmdir()
883 	err = fscrypt_setup_filename(dir, &dentry->d_name, 1, &nm);  in ubifs_rmdir()
900 	lock_2_inodes(dir, inode);  in ubifs_rmdir()
901 	inode->i_ctime = current_time(dir);  in ubifs_rmdir()
903 	drop_nlink(dir);  in ubifs_rmdir()
904 	dir->i_size -= sz_change;  in ubifs_rmdir()
905 	dir_ui->ui_size = dir->i_size;  in ubifs_rmdir()
906 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_rmdir()
907 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in ubifs_rmdir()
910 	unlock_2_inodes(dir, inode);  in ubifs_rmdir()
923 	dir->i_size += sz_change;  in ubifs_rmdir()
924 	dir_ui->ui_size = dir->i_size;  in ubifs_rmdir()
925 	inc_nlink(dir);  in ubifs_rmdir()
927 	unlock_2_inodes(dir, inode);  in ubifs_rmdir()
935 static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)  in ubifs_mkdir()  argument
938 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_mkdir()
939 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_mkdir()
950 		dentry, mode, dir->i_ino);  in ubifs_mkdir()
956 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in ubifs_mkdir()
962 	inode = ubifs_new_inode(c, dir, S_IFDIR | mode);  in ubifs_mkdir()
968 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_mkdir()
975 	inc_nlink(dir);  in ubifs_mkdir()
976 	dir->i_size += sz_change;  in ubifs_mkdir()
977 	dir_ui->ui_size = dir->i_size;  in ubifs_mkdir()
978 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_mkdir()
979 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_mkdir()
992 	dir->i_size -= sz_change;  in ubifs_mkdir()
993 	dir_ui->ui_size = dir->i_size;  in ubifs_mkdir()
994 	drop_nlink(dir);  in ubifs_mkdir()
1006 static int ubifs_mknod(struct inode *dir, struct dentry *dentry,  in ubifs_mknod()  argument
1011 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_mknod()
1012 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_mknod()
1025 	dbg_gen("dent '%pd' in dir ino %lu", dentry, dir->i_ino);  in ubifs_mknod()
1041 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in ubifs_mknod()
1049 	inode = ubifs_new_inode(c, dir, mode);  in ubifs_mknod()
1062 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_mknod()
1067 	dir->i_size += sz_change;  in ubifs_mknod()
1068 	dir_ui->ui_size = dir->i_size;  in ubifs_mknod()
1069 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_mknod()
1070 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_mknod()
1082 	dir->i_size -= sz_change;  in ubifs_mknod()
1083 	dir_ui->ui_size = dir->i_size;  in ubifs_mknod()
1095 static int ubifs_symlink(struct inode *dir, struct dentry *dentry,  in ubifs_symlink()  argument
1100 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_symlink()
1101 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_symlink()
1110 		symname, dir->i_ino);  in ubifs_symlink()
1112 	err = fscrypt_prepare_symlink(dir, symname, len, UBIFS_MAX_INO_DATA,  in ubifs_symlink()
1125 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in ubifs_symlink()
1131 	inode = ubifs_new_inode(c, dir, S_IFLNK | S_IRWXUGO);  in ubifs_symlink()
1162 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_symlink()
1167 	dir->i_size += sz_change;  in ubifs_symlink()
1168 	dir_ui->ui_size = dir->i_size;  in ubifs_symlink()
1169 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_symlink()
1170 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_symlink()
1181 	dir->i_size -= sz_change;  in ubifs_symlink()
1182 	dir_ui->ui_size = dir->i_size;  in ubifs_symlink()
1613 static int ubifs_dir_open(struct inode *dir, struct file *file)  in ubifs_dir_open()  argument
1615 	if (IS_ENCRYPTED(dir))  in ubifs_dir_open()
1616 		return fscrypt_get_encryption_info(dir) ? -EACCES : 0;  in ubifs_dir_open()