56 static int check_dev_ioctl_version(int cmd, struct autofs_dev_ioctl *param)  in check_dev_ioctl_version()  argument
60 	if ((param->ver_major != AUTOFS_DEV_IOCTL_VERSION_MAJOR) ||  in check_dev_ioctl_version()
61 	    (param->ver_minor > AUTOFS_DEV_IOCTL_VERSION_MINOR)) {  in check_dev_ioctl_version()
66 			param->ver_major, param->ver_minor, cmd);  in check_dev_ioctl_version()
71 	param->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;  in check_dev_ioctl_version()
72 	param->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;  in check_dev_ioctl_version()
102 static inline void free_dev_ioctl(struct autofs_dev_ioctl *param)  in free_dev_ioctl()  argument
104 	kfree(param);  in free_dev_ioctl()
111 static int validate_dev_ioctl(int cmd, struct autofs_dev_ioctl *param)  in validate_dev_ioctl()  argument
116 	err = check_dev_ioctl_version(cmd, param);  in validate_dev_ioctl()
123 	if (param->size > AUTOFS_DEV_IOCTL_SIZE) {  in validate_dev_ioctl()
124 		err = invalid_str(param->path, param->size - AUTOFS_DEV_IOCTL_SIZE);  in validate_dev_ioctl()
136 		err = check_name(param->path);  in validate_dev_ioctl()
161 				    struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_version()  argument
164 	param->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;  in autofs_dev_ioctl_version()
165 	param->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;  in autofs_dev_ioctl_version()
172 				     struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_protover()  argument
174 	param->protover.version = sbi->version;  in autofs_dev_ioctl_protover()
181 					struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_protosubver()  argument
183 	param->protosubver.sub_version = sbi->sub_version;  in autofs_dev_ioctl_protosubver()
265 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_openmount()  argument
273 	if (!param->openmount.devid)  in autofs_dev_ioctl_openmount()
276 	param->ioctlfd = -1;  in autofs_dev_ioctl_openmount()
278 	path = param->path;  in autofs_dev_ioctl_openmount()
279 	devid = new_decode_dev(param->openmount.devid);  in autofs_dev_ioctl_openmount()
288 	param->ioctlfd = fd;  in autofs_dev_ioctl_openmount()
296 				       struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_closemount()  argument
298 	return close_fd(param->ioctlfd);  in autofs_dev_ioctl_closemount()
307 				  struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_ready()  argument
311 	token = (autofs_wqt_t) param->ready.token;  in autofs_dev_ioctl_ready()
321 				 struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_fail()  argument
326 	token = (autofs_wqt_t) param->fail.token;  in autofs_dev_ioctl_fail()
327 	status = param->fail.status < 0 ? param->fail.status : -ENOENT;  in autofs_dev_ioctl_fail()
345 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_setpipefd()  argument
351 	if (param->setpipefd.pipefd == -1)  in autofs_dev_ioctl_setpipefd()
354 	pipefd = param->setpipefd.pipefd;  in autofs_dev_ioctl_setpipefd()
398 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_catatonic()  argument
430 				    struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_timeout()  argument
432 	unsigned long timeout = param->timeout.timeout;  in autofs_dev_ioctl_timeout()
440 	if (param->size == AUTOFS_DEV_IOCTL_SIZE) {  in autofs_dev_ioctl_timeout()
441 		param->timeout.timeout = sbi->exp_timeout / HZ;  in autofs_dev_ioctl_timeout()
446 		int path_len = param->size - AUTOFS_DEV_IOCTL_SIZE - 1;  in autofs_dev_ioctl_timeout()
464 		dentry = try_lookup_one_len(param->path, base, path_len);  in autofs_dev_ioctl_timeout()
475 			param->timeout.timeout = ino->exp_timeout / HZ;  in autofs_dev_ioctl_timeout()
477 			param->timeout.timeout = sbi->exp_timeout / HZ;  in autofs_dev_ioctl_timeout()
508 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_requester()  argument
519 	param->requester.uid = param->requester.gid = -1;  in autofs_dev_ioctl_requester()
521 	err = find_autofs_mount(param->path, &path, test_by_dev, &devid);  in autofs_dev_ioctl_requester()
530 		param->requester.uid =  in autofs_dev_ioctl_requester()
532 		param->requester.gid =  in autofs_dev_ioctl_requester()
547 				   struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_expire()  argument
552 	how = param->expire.how;  in autofs_dev_ioctl_expire()
561 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_askumount()  argument
563 	param->askumount.may_umount = 0;  in autofs_dev_ioctl_askumount()
565 		param->askumount.may_umount = 1;  in autofs_dev_ioctl_askumount()
592 					 struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_ismountpoint()  argument
602 	name = param->path;  in autofs_dev_ioctl_ismountpoint()
603 	type = param->ismountpoint.in.type;  in autofs_dev_ioctl_ismountpoint()
605 	param->ismountpoint.out.devid = devid = 0;  in autofs_dev_ioctl_ismountpoint()
606 	param->ismountpoint.out.magic = magic = 0;  in autofs_dev_ioctl_ismountpoint()
608 	if (!fp || param->ioctlfd == -1) {  in autofs_dev_ioctl_ismountpoint()
638 	param->ismountpoint.out.devid = devid;  in autofs_dev_ioctl_ismountpoint()
639 	param->ismountpoint.out.magic = magic;  in autofs_dev_ioctl_ismountpoint()
682 	struct autofs_dev_ioctl *param;  in _autofs_dev_ioctl()  local
706 	param = copy_dev_ioctl(user);  in _autofs_dev_ioctl()
707 	if (IS_ERR(param))  in _autofs_dev_ioctl()
708 		return PTR_ERR(param);  in _autofs_dev_ioctl()
710 	err = validate_dev_ioctl(command, param);  in _autofs_dev_ioctl()
735 		fp = fget(param->ioctlfd);  in _autofs_dev_ioctl()
763 	err = fn(fp, sbi, param);  in _autofs_dev_ioctl()
767 	if (err >= 0 && copy_to_user(user, param, AUTOFS_DEV_IOCTL_SIZE))  in _autofs_dev_ioctl()
770 	free_dev_ioctl(param);  in _autofs_dev_ioctl()