37 			struct compat_msghdr *msg,  in __get_compat_msghdr()  argument
42 	kmsg->msg_flags = msg->msg_flags;  in __get_compat_msghdr()
43 	kmsg->msg_namelen = msg->msg_namelen;  in __get_compat_msghdr()
45 	if (!msg->msg_name)  in __get_compat_msghdr()
56 	kmsg->msg_control_user = compat_ptr(msg->msg_control);  in __get_compat_msghdr()
57 	kmsg->msg_controllen = msg->msg_controllen;  in __get_compat_msghdr()
60 		*save_addr = compat_ptr(msg->msg_name);  in __get_compat_msghdr()
62 	if (msg->msg_name && kmsg->msg_namelen) {  in __get_compat_msghdr()
64 			err = move_addr_to_kernel(compat_ptr(msg->msg_name),  in __get_compat_msghdr()
75 	if (msg->msg_iovlen > UIO_MAXIOV)  in __get_compat_msghdr()
88 	struct compat_msghdr msg;  in get_compat_msghdr()  local
91 	if (copy_from_user(&msg, umsg, sizeof(*umsg)))  in get_compat_msghdr()
94 	err = __get_compat_msghdr(kmsg, &msg, save_addr);  in get_compat_msghdr()
99 			   compat_ptr(msg.msg_iov), msg.msg_iovlen,  in get_compat_msghdr()
114 #define CMSG_COMPAT_FIRSTHDR(msg)			\  argument
115 	(((msg)->msg_controllen) >= sizeof(struct compat_cmsghdr) ?	\
116 	 (struct compat_cmsghdr __user *)((msg)->msg_control_user) :	\
125 static inline struct compat_cmsghdr __user *cmsg_compat_nxthdr(struct msghdr *msg,  in cmsg_compat_nxthdr()  argument
129 	if ((unsigned long)(ptr + 1 - (char __user *)msg->msg_control_user) >  in cmsg_compat_nxthdr()
130 			msg->msg_controllen)  in cmsg_compat_nxthdr()
283 static int scm_max_fds_compat(struct msghdr *msg)  in scm_max_fds_compat()  argument
285 	if (msg->msg_controllen <= sizeof(struct compat_cmsghdr))  in scm_max_fds_compat()
287 	return (msg->msg_controllen - sizeof(struct compat_cmsghdr)) / sizeof(int);  in scm_max_fds_compat()
290 void scm_detach_fds_compat(struct msghdr *msg, struct scm_cookie *scm)  in scm_detach_fds_compat()  argument
293 		(struct compat_cmsghdr __user *)msg->msg_control_user;  in scm_detach_fds_compat()
294 	unsigned int o_flags = (msg->msg_flags & MSG_CMSG_CLOEXEC) ? O_CLOEXEC : 0;  in scm_detach_fds_compat()
295 	int fdmax = min_t(int, scm_max_fds_compat(msg), scm->fp->count);  in scm_detach_fds_compat()
315 			if (msg->msg_controllen < cmlen)  in scm_detach_fds_compat()
316 				cmlen = msg->msg_controllen;  in scm_detach_fds_compat()
317 			msg->msg_control_user += cmlen;  in scm_detach_fds_compat()
318 			msg->msg_controllen -= cmlen;  in scm_detach_fds_compat()
323 		msg->msg_flags |= MSG_CTRUNC;  in scm_detach_fds_compat()
343 					struct compat_msghdr __user *msg,  in __compat_sys_sendmsg()  argument
346 	return __sys_sendmsg(fd, (struct user_msghdr __user *)msg,  in __compat_sys_sendmsg()
350 COMPAT_SYSCALL_DEFINE3(sendmsg, int, fd, struct compat_msghdr __user *, msg,  in COMPAT_SYSCALL_DEFINE3()  argument
353 	return __compat_sys_sendmsg(fd, msg, flags);  in COMPAT_SYSCALL_DEFINE3()
371 					struct compat_msghdr __user *msg,  in __compat_sys_recvmsg()  argument
374 	return __sys_recvmsg(fd, (struct user_msghdr __user *)msg,  in __compat_sys_recvmsg()
378 COMPAT_SYSCALL_DEFINE3(recvmsg, int, fd, struct compat_msghdr __user *, msg,  in COMPAT_SYSCALL_DEFINE3()  argument
381 	return __compat_sys_recvmsg(fd, msg, flags);  in COMPAT_SYSCALL_DEFINE3()