694 	struct ip		*iphp;  in ipv4_input()  local
718 		iphp = (struct ip *)igp->igm_mp->b_rptr;  in ipv4_input()
719 		if (iphp->ip_v != IPVERSION) {  in ipv4_input()
721 			    index, iphp->ip_v);  in ipv4_input()
725 		iphlen = iphp->ip_hl << 2;  in ipv4_input()
732 		iplen = ntohs(iphp->ip_len);  in ipv4_input()
740 		bcopy((caddr_t)&(iphp->ip_dst), (caddr_t)&ipdst,  in ipv4_input()
742 		bcopy((caddr_t)&(iphp->ip_src), (caddr_t)&ipsrc,  in ipv4_input()
746 		if (ipv4cksum((uint16_t *)iphp, iphlen) != 0) {  in ipv4_input()
769 		if (!promiscuous && (iphp->ip_p == IPPROTO_ICMP)) {  in ipv4_input()
770 			icmp4(igp, iphp, iphlen, ipsrc);  in ipv4_input()
778 		    index, ntohs(iphp->ip_id), iphp->ip_p, igp, igp->igm_mp,  in ipv4_input()
795 		if ((type == INETBOOT_DGRAM && iphp->ip_p != IPPROTO_UDP) ||  in ipv4_input()
796 		    (type == INETBOOT_STREAM && iphp->ip_p != IPPROTO_TCP)) {  in ipv4_input()
799 			    "%d for socket type %d\n", index, iphp->ip_p, type);  in ipv4_input()
814 		curr_off = ntohs(iphp->ip_off);  in ipv4_input()
845 				ip_id = ntohs(iphp->ip_id);  in ipv4_input()
847 				    ip_id, iplen, iphlen, iphp->ip_p);  in ipv4_input()
888 			    ntohs(iphp->ip_id), iplen, iphlen, iphp->ip_p);  in ipv4_input()
895 				    ntohs(iphp->ip_id));  in ipv4_input()
973 	struct ip	*iphp;  in ipv4_output()  local
1000 	iphp = (struct ip *)&iphbuffer;  in ipv4_output()
1001 	iphp->ip_v = IPVERSION;  in ipv4_output()
1002 	iphp->ip_hl = sizeof (struct ip) / 4;  in ipv4_output()
1003 	iphp->ip_tos = 0;  in ipv4_output()
1004 	iphp->ip_len = htons(ogp->igm_mp->b_wptr - ogp->igm_mp->b_rptr +  in ipv4_output()
1006 	iphp->ip_id = htons(++g_ip_id);  in ipv4_output()
1007 	iphp->ip_off = htons(IP_DF);  in ipv4_output()
1008 	iphp->ip_p = sockets[index].proto;  in ipv4_output()
1009 	iphp->ip_sum = htons(0);  in ipv4_output()
1010 	iphp->ip_ttl = ttl;  in ipv4_output()
1013 	iphp->ip_src = myip;  in ipv4_output()
1014 	iphp->ip_dst = ogp->igm_saddr.sin_addr;  in ipv4_output()
1026 	if (iphp->ip_dst.s_addr == htonl(INADDR_BROADCAST) ||  in ipv4_output()
1028 	    iphp->ip_dst.s_addr == (mynet.s_addr | ~netmask.s_addr))) {  in ipv4_output()
1034 	    ((iphp->ip_dst.s_addr & netmask.s_addr) != mynet.s_addr)) {  in ipv4_output()
1036 		if ((rip = ipv4_get_route(RT_HOST, &iphp->ip_dst,  in ipv4_output()
1042 			    index, inet_ntoa(iphp->ip_dst));  in ipv4_output()
1050 	iphp->ip_sum = ipv4cksum((uint16_t *)iphp, sizeof (struct ip));  in ipv4_output()
1052 	bcopy((caddr_t)iphp, (caddr_t)(ogp->igm_mp->b_rptr),  in ipv4_output()