279 	unsigned short ptype, struct iphdr *ip __unused, struct udphdr *udp __unused)  in await_arp()
380 static uint16_t udpchksum(struct iphdr *ip, struct udphdr *udp)  in udpchksum()  argument
390 	pseudo.len         = udp->len;  in udpchksum()
396 	checksum = add_ipchksums(12, checksum, ipchksum(udp, ntohs(udp->len)));  in udpchksum()
406 	struct udphdr *udp;  in build_udp_hdr()  local
409 	udp = (struct udphdr *)((char *)buf + sizeof(struct iphdr));  in build_udp_hdr()
410 	udp->src = htons(srcsock);  in build_udp_hdr()
411 	udp->dest = htons(destsock);  in build_udp_hdr()
412 	udp->len = htons(len - sizeof(struct iphdr));  in build_udp_hdr()
413 	udp->chksum = 0;  in build_udp_hdr()
414 	if ((udp->chksum = udpchksum(ip, udp)) == 0)  in build_udp_hdr()
415 		udp->chksum = 0xffff;  in build_udp_hdr()
434 	struct iphdr *ip __unused, struct udphdr *udp __unused)  in await_qdrain()
456 		      struct iphdr *ip, struct udphdr *udp)  in await_rarp()  argument
526 	struct udphdr *udp)  in await_bootp()  argument
531 	if (!udp) {  in await_bootp()
541 	if (udp->dest != htons(BOOTP_CLIENT))  in await_bootp()
623 	struct udphdr *udp)  in await_dhcp()  argument
628 	if (!udp) {  in await_dhcp()
638 	if (udp->dest != htons(BOOTP_CLIENT))  in await_dhcp()
886 	struct	udphdr *udp;  in await_reply()  local
955 		udp = 0;  in await_reply()
958 			udp = (struct udphdr *)&nic.packet[ETH_HLEN + sizeof(struct iphdr)];  in await_reply()
961 			if (ntohs(udp->len) > (ntohs(ip->len) - iplen))  in await_reply()
964 			if (udp->chksum && udpchksum(ip, udp)) {  in await_reply()
969 		result = reply(ival, ptr, ptype, ip, udp);  in await_reply()