809 	const ip_udp_header_t * ip_udp;  in ip_frame_validate()  local
814 	ip_udp = (const ip_udp_header_t *)buf;  in ip_frame_validate()
815 	ip_len = ntohs(ip_udp->ip.ip_len);  in ip_frame_validate()
816 	inet_ptrtop(AF_INET, &ip_udp->ip.ip_src,  in ip_frame_validate()
818 	inet_ptrtop(AF_INET, &ip_udp->ip.ip_dst,  in ip_frame_validate()
823 		    ntohs(ip_udp->ip.ip_id));  in ip_frame_validate()
828 	T_ASSERT_EQ(ip_udp->ip.ip_v, IPVERSION, NULL);  in ip_frame_validate()
830 	T_ASSERT_EQ((u_int)(ip_udp->ip.ip_hl << 2),  in ip_frame_validate()
832 	if (ip_udp->ip.ip_p == IPPROTO_UDP) {  in ip_frame_validate()
837 		T_ASSERT_GE(buf_len, (u_int)sizeof(*ip_udp), NULL);  in ip_frame_validate()
838 		udp_len = ntohs(ip_udp->udp.uh_ulen);  in ip_frame_validate()
840 		T_ASSERT_GE(udp_len, (u_int)sizeof(ip_udp->udp), NULL);  in ip_frame_validate()
841 		data_len = udp_len - (u_int)sizeof(ip_udp->udp);  in ip_frame_validate()
845 			    ntohs(ip_udp->udp.uh_sport),  in ip_frame_validate()
846 			    ntohs(ip_udp->udp.uh_dport),  in ip_frame_validate()
848 			    ntohs(ip_udp->udp.uh_sum),  in ip_frame_validate()
991 	ip_udp_header_t *       ip_udp;  in ethernet_udp4_frame_populate()  local
995 	frame_length = (u_int)(sizeof(*eh_p) + sizeof(*ip_udp)) + data_len;  in ethernet_udp4_frame_populate()
1002 	ip_udp = (ip_udp_header_t *)(void *)(eh_p + 1);  in ethernet_udp4_frame_populate()
1004 	    (((char *)&ip_udp->udp) - sizeof(*udp_pseudo));  in ethernet_udp4_frame_populate()
1005 	payload = (char *)(eh_p + 1) + sizeof(*ip_udp);  in ethernet_udp4_frame_populate()
1020 	udp_pseudo->length = htons(sizeof(ip_udp->udp) + data_len);  in ethernet_udp4_frame_populate()
1023 	ip_udp->udp.uh_sport = htons(src_port);  in ethernet_udp4_frame_populate()
1024 	ip_udp->udp.uh_dport = htons(dst_port);  in ethernet_udp4_frame_populate()
1025 	ip_udp->udp.uh_ulen = htons(sizeof(ip_udp->udp) + data_len);  in ethernet_udp4_frame_populate()
1026 	ip_udp->udp.uh_sum = 0;  in ethernet_udp4_frame_populate()
1027 	ip_udp->udp.uh_sum = in_cksum(udp_pseudo, (int)(sizeof(*udp_pseudo)  in ethernet_udp4_frame_populate()
1028 	    + sizeof(ip_udp->udp) + data_len));  in ethernet_udp4_frame_populate()
1031 	bzero(ip_udp, sizeof(ip_udp->ip));  in ethernet_udp4_frame_populate()
1032 	ip_udp->ip.ip_v = IPVERSION;  in ethernet_udp4_frame_populate()
1033 	ip_udp->ip.ip_hl = sizeof(struct ip) >> 2;  in ethernet_udp4_frame_populate()
1034 	ip_udp->ip.ip_ttl = MAXTTL;  in ethernet_udp4_frame_populate()
1035 	ip_udp->ip.ip_p = IPPROTO_UDP;  in ethernet_udp4_frame_populate()
1036 	bcopy(&src_ip, &ip_udp->ip.ip_src, sizeof(src_ip));  in ethernet_udp4_frame_populate()
1037 	bcopy(&dst_ip, &ip_udp->ip.ip_dst, sizeof(dst_ip));  in ethernet_udp4_frame_populate()
1038 	ip_udp->ip.ip_len = htons(sizeof(*ip_udp) + data_len);  in ethernet_udp4_frame_populate()
1039 	ip_udp->ip.ip_id = htons(ip_id++);  in ethernet_udp4_frame_populate()
1042 	ip_udp->ip.ip_sum = 0; /* needs to be zero for checksum */  in ethernet_udp4_frame_populate()
1043 	ip_udp->ip.ip_sum = in_cksum(&ip_udp->ip, sizeof(ip_udp->ip));  in ethernet_udp4_frame_populate()
1216 	ip_udp_header_t *       ip_udp;  in ethernet_frame_get_udp4_payload()  local
1224 	T_ASSERT_GE(buf_len, (u_int)(sizeof(*eh_p) + sizeof(*ip_udp)), NULL);  in ethernet_frame_get_udp4_payload()
1230 	ip_udp = (ip_udp_header_t *)(void *)(eh_p + 1);  in ethernet_frame_get_udp4_payload()
1232 	ip_len = ntohs(ip_udp->ip.ip_len);  in ethernet_frame_get_udp4_payload()
1236 	T_ASSERT_EQ((int)ip_udp->ip.ip_v, IPVERSION, NULL);  in ethernet_frame_get_udp4_payload()
1238 	T_ASSERT_EQ((u_int)ip_udp->ip.ip_hl << 2, (u_int)sizeof(struct ip),  in ethernet_frame_get_udp4_payload()
1241 	T_ASSERT_EQ((int)ip_udp->ip.ip_p, IPPROTO_UDP, NULL);  in ethernet_frame_get_udp4_payload()
1243 	T_ASSERT_GE(buf_len, (u_int)sizeof(*ip_udp), NULL);  in ethernet_frame_get_udp4_payload()
1244 	udp_len = ntohs(ip_udp->udp.uh_ulen);  in ethernet_frame_get_udp4_payload()
1246 	T_ASSERT_GE(udp_len, (u_int)sizeof(ip_udp->udp), NULL);  in ethernet_frame_get_udp4_payload()
1247 	payload_length = udp_len - (int)sizeof(ip_udp->udp);  in ethernet_frame_get_udp4_payload()
1249 		payload = (ip_udp + 1);  in ethernet_frame_get_udp4_payload()