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()
77 struct inode *ubifs_new_inode(struct ubifs_info *c, struct inode *dir,  in ubifs_new_inode()  argument
98 	inode_init_owner(&init_user_ns, inode, dir, mode);  in ubifs_new_inode()
104 		err = fscrypt_prepare_new_inode(dir, inode, &encrypted);  in ubifs_new_inode()
135 	ui->flags = inherit_flags(dir, mode);  in ubifs_new_inode()
196 static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,  in ubifs_lookup()  argument
203 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_lookup()
206 	dbg_gen("'%pd' in dir ino %lu", dentry, dir->i_ino);  in ubifs_lookup()
208 	err = fscrypt_prepare_lookup(dir, dentry, &nm);  in ubifs_lookup()
229 		dent_key_init_hash(c, &key, dir->i_ino, nm.hash);  in ubifs_lookup()
232 		dent_key_init(c, &key, dir->i_ino, &nm);  in ubifs_lookup()
249 	inode = ubifs_iget(dir->i_sb, le64_to_cpu(dent->inum));  in ubifs_lookup()
262 	if (IS_ENCRYPTED(dir) &&  in ubifs_lookup()
264 	    !fscrypt_has_permitted_context(dir, inode)) {  in ubifs_lookup()
266 			   dir->i_ino, inode->i_ino);  in ubifs_lookup()
277 static int ubifs_prepare_create(struct inode *dir, struct dentry *dentry,  in ubifs_prepare_create()  argument
283 	return fscrypt_setup_filename(dir, &dentry->d_name, 0, nm);  in ubifs_prepare_create()
286 static int ubifs_create(struct user_namespace *mnt_userns, struct inode *dir,  in ubifs_create()  argument
290 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_create()
293 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_create()
303 		dentry, mode, dir->i_ino);  in ubifs_create()
309 	err = ubifs_prepare_create(dir, dentry, &nm);  in ubifs_create()
315 	inode = ubifs_new_inode(c, dir, mode, false);  in ubifs_create()
321 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_create()
326 	dir->i_size += sz_change;  in ubifs_create()
327 	dir_ui->ui_size = dir->i_size;  in ubifs_create()
328 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_create()
329 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_create()
341 	dir->i_size -= sz_change;  in ubifs_create()
342 	dir_ui->ui_size = dir->i_size;  in ubifs_create()
355 static struct inode *create_whiteout(struct inode *dir, struct dentry *dentry)  in create_whiteout()  argument
360 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in create_whiteout()
370 		dentry, mode, dir->i_ino);  in create_whiteout()
372 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in create_whiteout()
376 	inode = ubifs_new_inode(c, dir, mode, false);  in create_whiteout()
385 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in create_whiteout()
429 static int ubifs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,  in ubifs_tmpfile()  argument
434 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_tmpfile()
450 		dentry, mode, dir->i_ino);  in ubifs_tmpfile()
452 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in ubifs_tmpfile()
469 	inode = ubifs_new_inode(c, dir, mode, false);  in ubifs_tmpfile()
476 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_tmpfile()
488 	lock_2_inodes(dir, inode);  in ubifs_tmpfile()
489 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in ubifs_tmpfile()
492 	unlock_2_inodes(dir, inode);  in ubifs_tmpfile()
499 	unlock_2_inodes(dir, inode);  in ubifs_tmpfile()
567 	struct inode *dir = file_inode(file);  in ubifs_readdir()  local
568 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_readdir()
569 	bool encrypted = IS_ENCRYPTED(dir);  in ubifs_readdir()
571 	dbg_gen("dir ino %lu, f_pos %#llx", dir->i_ino, ctx->pos);  in ubifs_readdir()
581 		err = fscrypt_prepare_readdir(dir);  in ubifs_readdir()
620 		lowest_dent_key(c, &key, dir->i_ino);  in ubifs_readdir()
638 		dent_key_init_hash(c, &key, dir->i_ino, ctx->pos);  in ubifs_readdir()
654 			     ubifs_inode(dir)->creat_sqnum);  in ubifs_readdir()
662 			err = fscrypt_fname_disk_to_usr(dir, key_hash_flash(c,  in ubifs_readdir()
719 static int ubifs_dir_release(struct inode *dir, struct file *file)  in ubifs_dir_release()  argument
726 static int ubifs_link(struct dentry *old_dentry, struct inode *dir,  in ubifs_link()  argument
729 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_link()
732 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_link()
745 		inode->i_nlink, dir->i_ino);  in ubifs_link()
746 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_link()
749 	err = fscrypt_prepare_link(old_dentry, dir, dentry);  in ubifs_link()
753 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);  in ubifs_link()
765 	lock_2_inodes(dir, inode);  in ubifs_link()
774 	dir->i_size += sz_change;  in ubifs_link()
775 	dir_ui->ui_size = dir->i_size;  in ubifs_link()
776 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_link()
777 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_link()
780 	unlock_2_inodes(dir, inode);  in ubifs_link()
788 	dir->i_size -= sz_change;  in ubifs_link()
789 	dir_ui->ui_size = dir->i_size;  in ubifs_link()
793 	unlock_2_inodes(dir, inode);  in ubifs_link()
801 static int ubifs_unlink(struct inode *dir, struct dentry *dentry)  in ubifs_unlink()  argument
803 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_unlink()
805 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_unlink()
820 		inode->i_nlink, dir->i_ino);  in ubifs_unlink()
822 	err = fscrypt_setup_filename(dir, &dentry->d_name, 1, &nm);  in ubifs_unlink()
832 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_unlink()
845 	lock_2_inodes(dir, inode);  in ubifs_unlink()
846 	inode->i_ctime = current_time(dir);  in ubifs_unlink()
848 	dir->i_size -= sz_change;  in ubifs_unlink()
849 	dir_ui->ui_size = dir->i_size;  in ubifs_unlink()
850 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_unlink()
851 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in ubifs_unlink()
854 	unlock_2_inodes(dir, inode);  in ubifs_unlink()
867 	dir->i_size += sz_change;  in ubifs_unlink()
868 	dir_ui->ui_size = dir->i_size;  in ubifs_unlink()
870 	unlock_2_inodes(dir, inode);  in ubifs_unlink()
886 int ubifs_check_dir_empty(struct inode *dir)  in ubifs_check_dir_empty()  argument
888 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_check_dir_empty()
894 	lowest_dent_key(c, &key, dir->i_ino);  in ubifs_check_dir_empty()
907 static int ubifs_rmdir(struct inode *dir, struct dentry *dentry)  in ubifs_rmdir()  argument
909 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_rmdir()
912 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_rmdir()
923 		inode->i_ino, dir->i_ino);  in ubifs_rmdir()
924 	ubifs_assert(c, inode_is_locked(dir));  in ubifs_rmdir()
930 	err = fscrypt_setup_filename(dir, &dentry->d_name, 1, &nm);  in ubifs_rmdir()
947 	lock_2_inodes(dir, inode);  in ubifs_rmdir()
948 	inode->i_ctime = current_time(dir);  in ubifs_rmdir()
950 	drop_nlink(dir);  in ubifs_rmdir()
951 	dir->i_size -= sz_change;  in ubifs_rmdir()
952 	dir_ui->ui_size = dir->i_size;  in ubifs_rmdir()
953 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_rmdir()
954 	err = ubifs_jnl_update(c, dir, &nm, inode, 1, 0);  in ubifs_rmdir()
957 	unlock_2_inodes(dir, inode);  in ubifs_rmdir()
970 	dir->i_size += sz_change;  in ubifs_rmdir()
971 	dir_ui->ui_size = dir->i_size;  in ubifs_rmdir()
972 	inc_nlink(dir);  in ubifs_rmdir()
974 	unlock_2_inodes(dir, inode);  in ubifs_rmdir()
982 static int ubifs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,  in ubifs_mkdir()  argument
986 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_mkdir()
987 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_mkdir()
999 		dentry, mode, dir->i_ino);  in ubifs_mkdir()
1005 	err = ubifs_prepare_create(dir, dentry, &nm);  in ubifs_mkdir()
1011 	inode = ubifs_new_inode(c, dir, S_IFDIR | mode, false);  in ubifs_mkdir()
1017 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_mkdir()
1024 	inc_nlink(dir);  in ubifs_mkdir()
1025 	dir->i_size += sz_change;  in ubifs_mkdir()
1026 	dir_ui->ui_size = dir->i_size;  in ubifs_mkdir()
1027 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_mkdir()
1028 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_mkdir()
1041 	dir->i_size -= sz_change;  in ubifs_mkdir()
1042 	dir_ui->ui_size = dir->i_size;  in ubifs_mkdir()
1043 	drop_nlink(dir);  in ubifs_mkdir()
1055 static int ubifs_mknod(struct user_namespace *mnt_userns, struct inode *dir,  in ubifs_mknod()  argument
1060 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_mknod()
1061 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_mknod()
1074 	dbg_gen("dent '%pd' in dir ino %lu", dentry, dir->i_ino);  in ubifs_mknod()
1090 	err = ubifs_prepare_create(dir, dentry, &nm);  in ubifs_mknod()
1098 	inode = ubifs_new_inode(c, dir, mode, false);  in ubifs_mknod()
1111 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_mknod()
1116 	dir->i_size += sz_change;  in ubifs_mknod()
1117 	dir_ui->ui_size = dir->i_size;  in ubifs_mknod()
1118 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_mknod()
1119 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_mknod()
1131 	dir->i_size -= sz_change;  in ubifs_mknod()
1132 	dir_ui->ui_size = dir->i_size;  in ubifs_mknod()
1144 static int ubifs_symlink(struct user_namespace *mnt_userns, struct inode *dir,  in ubifs_symlink()  argument
1149 	struct ubifs_inode *dir_ui = ubifs_inode(dir);  in ubifs_symlink()
1150 	struct ubifs_info *c = dir->i_sb->s_fs_info;  in ubifs_symlink()
1159 		symname, dir->i_ino);  in ubifs_symlink()
1161 	err = fscrypt_prepare_symlink(dir, symname, len, UBIFS_MAX_INO_DATA,  in ubifs_symlink()
1174 	err = ubifs_prepare_create(dir, dentry, &nm);  in ubifs_symlink()
1180 	inode = ubifs_new_inode(c, dir, S_IFLNK | S_IRWXUGO, false);  in ubifs_symlink()
1211 	err = ubifs_init_security(dir, inode, &dentry->d_name);  in ubifs_symlink()
1216 	dir->i_size += sz_change;  in ubifs_symlink()
1217 	dir_ui->ui_size = dir->i_size;  in ubifs_symlink()
1218 	dir->i_mtime = dir->i_ctime = inode->i_ctime;  in ubifs_symlink()
1219 	err = ubifs_jnl_update(c, dir, &nm, inode, 0, 0);  in ubifs_symlink()
1230 	dir->i_size -= sz_change;  in ubifs_symlink()
1231 	dir_ui->ui_size = dir->i_size;  in ubifs_symlink()