ipfilter/netinet/ip_nat.c

3623 	ip_t *oip;
3642 	oip = (ip_t *)((char *)fin->fin_dp + 8);
3643 	minlen = IP_HL(oip) << 2;
3665 	if ((char *)oip + fin->fin_dlen - ICMPERR_ICMPHLEN >
3671 	if ((char *)oip + fin->fin_dlen - ICMPERR_ICMPHLEN >
3680 	if (fin->fin_daddr != oip->ip_src.s_addr) {
3685 	p = oip->ip_p;
3691 		orgicmp = (icmphdr_t *)((char *)oip + (IP_HL(oip) << 2));
3708 						       oip->ip_dst,
3709 						       oip->ip_src);
3712 							oip->ip_dst,
3713 							oip->ip_src);
3730 		tcp = (tcphdr_t *)((char *)oip + (IP_HL(oip) << 2));
3735 			nat = ipf_nat_inlookup(fin, flags, p, oip->ip_dst,
3736 					       oip->ip_src);
3738 			nat = ipf_nat_outlookup(fin, flags, p, oip->ip_dst,
3739 					    oip->ip_src);
3746 		nat = ipf_nat_inlookup(fin, 0, p, oip->ip_dst, oip->ip_src);
3748 		nat = ipf_nat_outlookup(fin, 0, p, oip->ip_dst, oip->ip_src);
3782 	ip_t *oip;
3804 	oip = (ip_t *)&icmp->icmp_ip;
3805 	dp = (((char *)oip) + (IP_HL(oip) << 2));
3806 	if (oip->ip_p == IPPROTO_TCP) {
3810 	} else if (oip->ip_p == IPPROTO_UDP) {
3817 	} else if (oip->ip_p == IPPROTO_ICMP)
3838 	 * IP address change in oip.
3841 	 * changed oip IP addresses and oip->ip_sum. However, these
3894 		a4.s_addr = ntohl(oip->ip_src.s_addr);
3896 		a2.s_addr = ntohl(oip->ip_dst.s_addr);
3897 		oip->ip_src.s_addr = htonl(a1.s_addr);
3898 		oip->ip_dst.s_addr = htonl(a3.s_addr);
3902 		a2.s_addr = ntohl(oip->ip_dst.s_addr);
3904 		a4.s_addr = ntohl(oip->ip_src.s_addr);
3905 		oip->ip_dst.s_addr = htonl(a3.s_addr);
3906 		oip->ip_src.s_addr = htonl(a1.s_addr);
3916 		ipf_fix_datacksum(&oip->ip_sum, sumd);
3979 			if (oip->ip_p == IPPROTO_UDP) {
3987 			} else if (oip->ip_p == IPPROTO_TCP) {