36 int __get_compat_msghdr(struct msghdr *kmsg,  in __get_compat_msghdr()  argument
47 	kmsg->msg_flags = msg.msg_flags;  in __get_compat_msghdr()
48 	kmsg->msg_namelen = msg.msg_namelen;  in __get_compat_msghdr()
51 		kmsg->msg_namelen = 0;  in __get_compat_msghdr()
53 	if (kmsg->msg_namelen < 0)  in __get_compat_msghdr()
56 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))  in __get_compat_msghdr()
57 		kmsg->msg_namelen = sizeof(struct sockaddr_storage);  in __get_compat_msghdr()
59 	kmsg->msg_control_is_user = true;  in __get_compat_msghdr()
60 	kmsg->msg_control_user = compat_ptr(msg.msg_control);  in __get_compat_msghdr()
61 	kmsg->msg_controllen = msg.msg_controllen;  in __get_compat_msghdr()
66 	if (msg.msg_name && kmsg->msg_namelen) {  in __get_compat_msghdr()
69 						  kmsg->msg_namelen,  in __get_compat_msghdr()
70 						  kmsg->msg_name);  in __get_compat_msghdr()
75 		kmsg->msg_name = NULL;  in __get_compat_msghdr()
76 		kmsg->msg_namelen = 0;  in __get_compat_msghdr()
82 	kmsg->msg_iocb = NULL;  in __get_compat_msghdr()
88 int get_compat_msghdr(struct msghdr *kmsg,  in get_compat_msghdr()  argument
97 	err = __get_compat_msghdr(kmsg, umsg, save_addr, &ptr, &len);  in get_compat_msghdr()
102 			   UIO_FASTIOV, iov, &kmsg->msg_iter);  in get_compat_msghdr()
141 int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,  in cmsghdr_from_user_compat_to_kern()  argument
155 	ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);  in cmsghdr_from_user_compat_to_kern()
161 		if (!CMSG_COMPAT_OK(ucmlen, ucmsg, kmsg))  in cmsghdr_from_user_compat_to_kern()
167 		ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);  in cmsghdr_from_user_compat_to_kern()
184 	ucmsg = CMSG_COMPAT_FIRSTHDR(kmsg);  in cmsghdr_from_user_compat_to_kern()
189 		if (!CMSG_COMPAT_OK(cmsg.cmsg_len, ucmsg, kmsg))  in cmsghdr_from_user_compat_to_kern()
205 		ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, cmsg.cmsg_len);  in cmsghdr_from_user_compat_to_kern()
216 	kmsg->msg_control = kcmsg_base;  in cmsghdr_from_user_compat_to_kern()
217 	kmsg->msg_controllen = kcmlen;  in cmsghdr_from_user_compat_to_kern()
228 int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data)  in put_cmsg_compat()  argument
230 	struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control;  in put_cmsg_compat()
236 	if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {  in put_cmsg_compat()
237 		kmsg->msg_flags |= MSG_CTRUNC;  in put_cmsg_compat()
264 	if (kmsg->msg_controllen < cmlen) {  in put_cmsg_compat()
265 		kmsg->msg_flags |= MSG_CTRUNC;  in put_cmsg_compat()
266 		cmlen = kmsg->msg_controllen;  in put_cmsg_compat()
277 	if (kmsg->msg_controllen < cmlen)  in put_cmsg_compat()
278 		cmlen = kmsg->msg_controllen;  in put_cmsg_compat()
279 	kmsg->msg_control += cmlen;  in put_cmsg_compat()
280 	kmsg->msg_controllen -= cmlen;  in put_cmsg_compat()