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Lines Matching defs:tcp

86 #include <netinet/tcp.h>
1359 /* Check if the ICMP error message is related to an existing TCP, UDP or    */
1371 	tcphdr_t *tcp = NULL;
1402 	 * outside the ICMP packet, leading to TCP deref's causing problems.
1478 		tcp = (tcphdr_t *)(oip6 + 1);
1479 		fin->fin_data[0] = ntohs(tcp->th_dport);
1480 		fin->fin_data[1] = ntohs(tcp->th_sport);
1564 	tcphdr_t *tcp;
1582 	tcp = NULL;
1591 		tcp = (tcphdr_t *)dp;
1592 		csump = (u_short *)&tcp->th_sum;
1598 		tcp = (tcphdr_t *)dp;
1723 		 * For offending TCP/UDP IP packets, translate the ports as
1727 		 * Since the port fields are part of the TCP/UDP checksum
1730 		 * be offset by the checksum change.  However, the TCP/UDP
1736 			sum4 = ntohs(tcp->th_sport);
1738 			sum2 = ntohs(tcp->th_dport);
1740 			tcp->th_sport = htons(sum1);
1741 			tcp->th_dport = htons(sum3);
1744 			sum2 = ntohs(tcp->th_dport);
1746 			sum4 = ntohs(tcp->th_sport);
1748 			tcp->th_dport = htons(sum3);
1749 			tcp->th_sport = htons(sum1);
1757 			 * TCP/UDP header, given the changes in both the IP
1761 			 * TCP/UDP checksum instead.
1763 			 * If we will both the IP and TCP/UDP checksums
1765 			 * delta applied to the TCP/UDP checksum.  If we
1766 			 * do not change the TCP/UDP checksum them we
2093 /* This function is only called for TCP/UDP NAT table entries where the     */
2566 	tcphdr_t *tcp = NULL;
2623 			tcp = fin->fin_dp;
2688 				if (appr_ok(fin, tcp, np) == 0)
2766 	tcphdr_t *tcp;
2771 	tcp = NULL;
2872 			tcp = fin->fin_dp;
2877 				tcp->th_sport = nat->nat_nsport;
2879 				tcp->th_dport = nat->nat_ndport;
2884 				tcp->th_sport = nat->nat_odport;
2886 				tcp->th_dport = nat->nat_osport;
2923 	/*      A NULL tcp indicates a non TCP/UDP packet.  When dealing */
2969 	tcphdr_t *tcp;
2979 	tcp = NULL;
3022 			tcp = fin->fin_dp;
3087 				if (!appr_ok(fin, tcp, np)) {
3168 	tcphdr_t *tcp;
3173 	tcp = NULL;
3187 	/*      A NULL tcp indicates a non TCP/UDP packet.  When dealing */
3296 		tcp = fin->fin_dp;
3303 				tcp->th_sport = nat->nat_nsport;
3305 				tcp->th_dport = nat->nat_ndport;
3310 				tcp->th_sport = nat->nat_odport;
3312 				tcp->th_dport = nat->nat_osport;