bsd/netinet6/ip6_fw.c

188 				   int *off, int *nxt, u_short *offset));
194 				struct ifnet *rif, struct ifnet *oif, int off, int nxt));
276 is_icmp6_query(struct ip6_hdr *ip6, int off)
281 	icmp6 = (struct icmp6_hdr *)((caddr_t)ip6 + off);
296 	      int *off, int *nxt, u_short *offset)
307 	*off = sizeof(struct ip6_hdr);
309 	while (*off < len) {
310 		ip6e = (struct ip6_ext *)((caddr_t) ip6 + *off);
311 		if ((*m)->m_len < *off + sizeof(*ip6e))
316 			if ((*m)->m_len >= *off + sizeof(struct ip6_frag)) {
319 				ip6f = (struct ip6_frag *) ((caddr_t)ip6 + *off);
324 			*off += sizeof(struct ip6_frag);
329 			*off += (ip6e->ip6e_len + 2) << 2;
358 			*off += (ip6e->ip6e_len + 1) << 3;
418 	struct ifnet *rif, struct ifnet *oif, int off, int nxt)
421 	struct tcphdr *const tcp6 = (struct tcphdr *) ((caddr_t) ip6+ off);
422 	struct udphdr *const udp = (struct udphdr *) ((caddr_t) ip6+ off);
423 	struct icmp6_hdr *const icmp6 = (struct icmp6_hdr *) ((caddr_t) ip6+ off);
478 		if (off > 0)
485 		if (off > 0)
492 		if (off > 0)
499 		if (off > 0)
504 		if (off > 0)
566 	int off = sizeof(struct ip6_hdr), nxt = ip6->ip6_nxt;
647 		if (!ip6opts_match(&ip6, f, m, &off, &nxt, &offset))
677 				PULLUP_TO(off + 4); /* XXX ? */
692 			PULLUP_TO(off + 14);
693 			tcp6 = (struct tcphdr *) ((caddr_t)ip6 + off);
718 			PULLUP_TO(off + 4);
719 			udp = (struct udphdr *) ((caddr_t)ip6 + off);
740 			PULLUP_TO(off + 2);
741 			icmp = (struct icmp6_hdr *) ((caddr_t)ip6 + off);
750 				ip6fw_report(NULL, ip6, rif, oif, off, nxt);
773 			ip6fw_report(f, ip6, rif, oif, off, nxt);
831 	    && (nxt != IPPROTO_ICMPV6 || is_icmp6_query(ip6, off))
838 				(struct tcphdr *) ((caddr_t)ip6 + off);
861 					ack += (*m)->m_pkthdr.len - off
865 						- off - (ti.th.th_off << 2);