sys/netinet/tcp_subr.c

235 static char *	tcp_log_addr(struct in_conninfo *inc, struct tcphdr *th,
1942 	struct in_conninfo inc;
2016 						bzero(&inc, sizeof(inc));
2017 						inc.inc_faddr = faddr;
2018 						inc.inc_fibnum =
2020 						tcp_hc_updatemtu(&inc, mtu);
2029 		bzero(&inc, sizeof(inc));
2030 		inc.inc_fport = th->th_dport;
2031 		inc.inc_lport = th->th_sport;
2032 		inc.inc_faddr = faddr;
2033 		inc.inc_laddr = ip->ip_src;
2034 		syncache_unreach(&inc, icmp_tcp_seq);
2056 	struct in_conninfo inc;
2154 					bzero(&inc, sizeof(inc));
2155 					inc.inc_fibnum = M_GETFIB(m);
2156 					inc.inc_flags |= INC_ISIPV6;
2157 					inc.inc6_faddr = *dst;
2158 					if (in6_setscope(&inc.inc6_faddr,
2168 						tcp_hc_updatemtu(&inc, mtu);
2178 		bzero(&inc, sizeof(inc));
2179 		inc.inc_fibnum = M_GETFIB(m);
2180 		inc.inc_flags |= INC_ISIPV6;
2181 		inc.inc_fport = t_ports.th_dport;
2182 		inc.inc_lport = t_ports.th_sport;
2183 		inc.inc6_faddr = *dst;
2184 		inc.inc6_laddr = ip6->ip6_src;
2185 		syncache_unreach(&inc, icmp_tcp_seq);
2195 tcp_keyed_hash(struct in_conninfo *inc, u_char *key)
2201 	MD5Update(&ctx, &inc->inc_fport, sizeof(uint16_t));
2202 	MD5Update(&ctx, &inc->inc_lport, sizeof(uint16_t));
2203 	switch (inc->inc_flags & INC_ISIPV6) {
2206 		MD5Update(&ctx, &inc->inc_faddr, sizeof(struct in_addr));
2207 		MD5Update(&ctx, &inc->inc_laddr, sizeof(struct in_addr));
2212 		MD5Update(&ctx, &inc->inc6_faddr, sizeof(struct in6_addr));
2213 		MD5Update(&ctx, &inc->inc6_laddr, sizeof(struct in6_addr));
2224 tcp_new_ts_offset(struct in_conninfo *inc)
2226 	return (tcp_keyed_hash(inc, V_ts_offset_secret));
2290 tcp_new_isn(struct in_conninfo *inc)
2305 	new_isn = (tcp_seq)tcp_keyed_hash(inc, V_isn_secret);
2404 tcp_maxmtu(struct in_conninfo *inc, struct tcp_ifcap *cap)
2410 	KASSERT(inc != NULL, ("tcp_maxmtu with NULL in_conninfo pointer"));
2412 	if (inc->inc_faddr.s_addr != INADDR_ANY) {
2414 		if (fib4_lookup_nh_ext(inc->inc_fibnum, inc->inc_faddr,
2431 		fib4_free_nh_ext(inc->inc_fibnum, &nh4);
2439 tcp_maxmtu6(struct in_conninfo *inc, struct tcp_ifcap *cap)
2447 	KASSERT(inc != NULL, ("tcp_maxmtu6 with NULL in_conninfo pointer"));
2449 	if (inc->inc_flags & INC_IPV6MINMTU)
2452 	if (!IN6_IS_ADDR_UNSPECIFIED(&inc->inc6_faddr)) {
2453 		in6_splitscope(&inc->inc6_faddr, &dst6, &scopeid);
2454 		if (fib6_lookup_nh_ext(inc->inc_fibnum, &dst6, scopeid, 0,
2471 		fib6_free_nh_ext(inc->inc_fibnum, &nh6);
2658 tcp_log_vain(struct in_conninfo *inc, struct tcphdr *th, void *ip4hdr,
2666 	return (tcp_log_addr(inc, th, ip4hdr, ip6hdr));
2670 tcp_log_addrs(struct in_conninfo *inc, struct tcphdr *th, void *ip4hdr,
2678 	return (tcp_log_addr(inc, th, ip4hdr, ip6hdr));
2682 tcp_log_addr(struct in_conninfo *inc, struct tcphdr *th, void *ip4hdr,
2714 	if (inc && ((inc->inc_flags & INC_ISIPV6) == 0)) {
2715 		inet_ntoa_r(inc->inc_faddr, sp);
2717 		sprintf(sp, "]:%i to [", ntohs(inc->inc_fport));
2719 		inet_ntoa_r(inc->inc_laddr, sp);
2721 		sprintf(sp, "]:%i", ntohs(inc->inc_lport));
2723 	} else if (inc) {
2724 		ip6_sprintf(sp, &inc->inc6_faddr);
2726 		sprintf(sp, "]:%i to [", ntohs(inc->inc_fport));
2728 		ip6_sprintf(sp, &inc->inc6_laddr);
2730 		sprintf(sp, "]:%i", ntohs(inc->inc_lport));