279 	unsigned short ptype, struct iphdr *ip __unused, struct udphdr *udp __unused)  in await_arp()
299 	struct iphdr *ip;  in ip_transmit()
304 	ip = (struct iphdr *)buf;  in ip_transmit()
364 	struct iphdr *ip;  in build_ip_hdr()
365 	ip = (struct iphdr *)buf;  in build_ip_hdr()
377 	ip->chksum = ipchksum(buf, sizeof(struct iphdr) + option_len);  in build_ip_hdr()
380 static uint16_t udpchksum(struct iphdr *ip, struct udphdr *udp)  in udpchksum()
405 	struct iphdr *ip;  in build_udp_hdr()
407 	ip = (struct iphdr *)buf;  in build_udp_hdr()
409 	udp = (struct udphdr *)((char *)buf + sizeof(struct iphdr));  in build_udp_hdr()
412 	udp->len = htons(len - sizeof(struct iphdr));  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()
525 	unsigned short ptype __unused, struct iphdr *ip __unused,   in await_bootp()
535 		&nic.packet[ETH_HLEN + sizeof(struct iphdr) + sizeof(struct udphdr)];  in await_bootp()
536 	len = nic.packetlen - (ETH_HLEN + sizeof(struct iphdr) +   in await_bootp()
622 	unsigned short ptype __unused, struct iphdr *ip __unused,   in await_dhcp()
632 		&nic.packet[ETH_HLEN + sizeof(struct iphdr) + sizeof(struct udphdr)];  in await_dhcp()
633 	len = nic.packetlen - (ETH_HLEN + sizeof(struct iphdr) +   in await_dhcp()
775 static void process_igmp(struct iphdr *ip, unsigned long now)  in process_igmp()
781 		(nic.packetlen < sizeof(struct iphdr) + sizeof(struct igmp))) {  in process_igmp()
785 	igmp = (struct igmp *)&nic.packet[sizeof(struct iphdr)];  in process_igmp()
884 	struct	iphdr *ip;  in await_reply()
925 		if ((ptype == IP) && (nic.packetlen >= ETH_HLEN + sizeof(struct iphdr))) {  in await_reply()
927 			ip = (struct iphdr *)&nic.packet[ETH_HLEN];  in await_reply()
944 			ipoptlen = iplen - sizeof(struct iphdr);  in await_reply()
949 				memmove(&nic.packet[ETH_HLEN + sizeof(struct iphdr)],   in await_reply()
957 		    (nic.packetlen >= ETH_HLEN + sizeof(struct iphdr) + sizeof(struct udphdr))) {  in await_reply()
958 			udp = (struct udphdr *)&nic.packet[ETH_HLEN + sizeof(struct iphdr)];  in await_reply()