ipfw/nat64/nat64_translate.c

58 #include <netinet/icmp6.h>
623 	struct icmp6_hdr *icmp6;
638 		if (m->m_len < len + sizeof(*icmp6)) {
642 		icmp6 = mtodo(m, len);
643 		if (icmp6->icmp6_type < ICMP6_ECHO_REQUEST ||
644 		    icmp6->icmp6_type == ND_REDIRECT) {
698 	icmp6 = mtodo(n, sizeof(struct ip6_hdr));
699 	icmp6->icmp6_cksum = 0;
700 	icmp6->icmp6_type = type;
701 	icmp6->icmp6_code = code;
702 	icmp6->icmp6_mtu = htonl(mtu);
706 	icmp6->icmp6_cksum = in6_cksum(n, IPPROTO_ICMPV6,
821 nat64_icmp_handle_echo(struct ip6_hdr *ip6, struct icmp6_hdr *icmp6,
826 	old = *(uint16_t *)icmp6;	/* save type+code in one word */
827 	icmp6->icmp6_type = type;
829 	icmp6->icmp6_cksum = cksum_adjust(icmp6->icmp6_cksum,
830 	    old, *(uint16_t *)icmp6);
832 		old = icmp6->icmp6_id;
833 		icmp6->icmp6_id = id;
835 		icmp6->icmp6_cksum = cksum_adjust(icmp6->icmp6_cksum,
839 	icmp6->icmp6_cksum = ~in6_cksum_pseudo(ip6, ntohs(ip6->ip6_plen),
840 	    IPPROTO_ICMPV6, ~icmp6->icmp6_cksum);
1287 	struct icmp6_hdr *icmp6;
1313 	icmp6 = mtodo(m, hlen);
1315 	switch (icmp6->icmp6_type) {
1318 		switch (icmp6->icmp6_code) {
1332 			    " code %d", icmp6->icmp6_type,
1333 			    icmp6->icmp6_code);
1341 		mtu = ntohl(icmp6->icmp6_mtu);
1344 			    " code %d", mtu, icmp6->icmp6_type,
1345 			    icmp6->icmp6_code);
1357 		code = icmp6->icmp6_code;
1360 		switch (icmp6->icmp6_code) {
1364 			mtu = ntohl(icmp6->icmp6_pptr);
1389 				    " code %d, pptr %d", icmp6->icmp6_type,
1390 				    icmp6->icmp6_code, mtu);
1400 			    " code %d, pptr %d", icmp6->icmp6_type,
1401 			    icmp6->icmp6_code, ntohl(icmp6->icmp6_pptr));
1408 		    icmp6->icmp6_type, icmp6->icmp6_code);
1512 	struct icmp6_hdr *icmp6;
1592 	icmp6 = NULL;	/* Make gcc happy */
1594 		icmp6 = mtodo(m, hlen);
1595 		if (icmp6->icmp6_type != ICMP6_ECHO_REQUEST &&
1596 		    icmp6->icmp6_type != ICMP6_ECHO_REPLY)
1641 		csum = &icmp6->icmp6_cksum;
1645 		proto = *(uint16_t *)icmp6; /* save old word for cksum_adjust */
1646 		if (icmp6->icmp6_type == ICMP6_ECHO_REQUEST)
1647 			icmp6->icmp6_type = ICMP_ECHO;
1649 			icmp6->icmp6_type = ICMP_ECHOREPLY;
1651 		    *(uint16_t *)icmp6);
1653 			uint16_t old_id = icmp6->icmp6_id;
1654 			icmp6->icmp6_id = aport;