71 static int check_dev_ioctl_version(int cmd, struct autofs_dev_ioctl *param)  in check_dev_ioctl_version()  argument
75 	if ((param->ver_major != AUTOFS_DEV_IOCTL_VERSION_MAJOR) ||  in check_dev_ioctl_version()
76 	    (param->ver_minor > AUTOFS_DEV_IOCTL_VERSION_MINOR)) {  in check_dev_ioctl_version()
81 			param->ver_major, param->ver_minor, cmd);  in check_dev_ioctl_version()
86 	param->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;  in check_dev_ioctl_version()
87 	param->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;  in check_dev_ioctl_version()
117 static inline void free_dev_ioctl(struct autofs_dev_ioctl *param)  in free_dev_ioctl()  argument
119 	kfree(param);  in free_dev_ioctl()
126 static int validate_dev_ioctl(int cmd, struct autofs_dev_ioctl *param)  in validate_dev_ioctl()  argument
130 	err = check_dev_ioctl_version(cmd, param);  in validate_dev_ioctl()
137 	if (param->size > sizeof(*param)) {  in validate_dev_ioctl()
138 		err = invalid_str(param->path, param->size - sizeof(*param));  in validate_dev_ioctl()
146 		err = check_name(param->path);  in validate_dev_ioctl()
178 				    struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_version()  argument
181 	param->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;  in autofs_dev_ioctl_version()
182 	param->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;  in autofs_dev_ioctl_version()
189 				     struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_protover()  argument
191 	param->protover.version = sbi->version;  in autofs_dev_ioctl_protover()
198 					struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_protosubver()  argument
200 	param->protosubver.sub_version = sbi->sub_version;  in autofs_dev_ioctl_protosubver()
287 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_openmount()  argument
294 	if (!param->openmount.devid)  in autofs_dev_ioctl_openmount()
297 	param->ioctlfd = -1;  in autofs_dev_ioctl_openmount()
299 	path = param->path;  in autofs_dev_ioctl_openmount()
300 	devid = new_decode_dev(param->openmount.devid);  in autofs_dev_ioctl_openmount()
309 	param->ioctlfd = fd;  in autofs_dev_ioctl_openmount()
317 				       struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_closemount()  argument
319 	return sys_close(param->ioctlfd);  in autofs_dev_ioctl_closemount()
328 				  struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_ready()  argument
332 	token = (autofs_wqt_t) param->ready.token;  in autofs_dev_ioctl_ready()
342 				 struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_fail()  argument
347 	token = (autofs_wqt_t) param->fail.token;  in autofs_dev_ioctl_fail()
348 	status = param->fail.status < 0 ? param->fail.status : -ENOENT;  in autofs_dev_ioctl_fail()
366 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_setpipefd()  argument
372 	if (param->setpipefd.pipefd == -1)  in autofs_dev_ioctl_setpipefd()
375 	pipefd = param->setpipefd.pipefd;  in autofs_dev_ioctl_setpipefd()
419 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_catatonic()  argument
428 				    struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_timeout()  argument
432 	timeout = param->timeout.timeout;  in autofs_dev_ioctl_timeout()
433 	param->timeout.timeout = sbi->exp_timeout / HZ;  in autofs_dev_ioctl_timeout()
448 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_requester()  argument
455 	if (param->size <= sizeof(*param)) {  in autofs_dev_ioctl_requester()
462 	param->requester.uid = param->requester.gid = -1;  in autofs_dev_ioctl_requester()
464 	err = find_autofs_mount(param->path, &path, test_by_dev, &devid);  in autofs_dev_ioctl_requester()
473 		param->requester.uid =  in autofs_dev_ioctl_requester()
475 		param->requester.gid =  in autofs_dev_ioctl_requester()
490 				   struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_expire()  argument
495 	how = param->expire.how;  in autofs_dev_ioctl_expire()
504 				      struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_askumount()  argument
506 	param->askumount.may_umount = 0;  in autofs_dev_ioctl_askumount()
508 		param->askumount.may_umount = 1;  in autofs_dev_ioctl_askumount()
535 					 struct autofs_dev_ioctl *param)  in autofs_dev_ioctl_ismountpoint()  argument
543 	if (param->size <= sizeof(*param)) {  in autofs_dev_ioctl_ismountpoint()
548 	name = param->path;  in autofs_dev_ioctl_ismountpoint()
549 	type = param->ismountpoint.in.type;  in autofs_dev_ioctl_ismountpoint()
551 	param->ismountpoint.out.devid = devid = 0;  in autofs_dev_ioctl_ismountpoint()
552 	param->ismountpoint.out.magic = magic = 0;  in autofs_dev_ioctl_ismountpoint()
554 	if (!fp || param->ioctlfd == -1) {  in autofs_dev_ioctl_ismountpoint()
584 	param->ismountpoint.out.devid = devid;  in autofs_dev_ioctl_ismountpoint()
585 	param->ismountpoint.out.magic = magic;  in autofs_dev_ioctl_ismountpoint()
625 	struct autofs_dev_ioctl *param;  in _autofs_dev_ioctl()  local
645 	param = copy_dev_ioctl(user);  in _autofs_dev_ioctl()
646 	if (IS_ERR(param))  in _autofs_dev_ioctl()
647 		return PTR_ERR(param);  in _autofs_dev_ioctl()
649 	err = validate_dev_ioctl(command, param);  in _autofs_dev_ioctl()
672 		fp = fget(param->ioctlfd);  in _autofs_dev_ioctl()
699 	err = fn(fp, sbi, param);  in _autofs_dev_ioctl()
703 	if (err >= 0 && copy_to_user(user, param, AUTOFS_DEV_IOCTL_SIZE))  in _autofs_dev_ioctl()
706 	free_dev_ioctl(param);  in _autofs_dev_ioctl()