1233 	icmph_t	icmph;  in icmp_frag_needed()  local
1240 	bzero(&icmph, sizeof (icmph_t));  in icmp_frag_needed()
1241 	icmph.icmph_type = ICMP_DEST_UNREACHABLE;  in icmp_frag_needed()
1242 	icmph.icmph_code = ICMP_FRAGMENTATION_NEEDED;  in icmp_frag_needed()
1243 	icmph.icmph_du_mtu = htons((uint16_t)mtu);  in icmp_frag_needed()
1247 	icmp_pkt(mp, &icmph, sizeof (icmph_t), ira);  in icmp_frag_needed()
1331 	icmph_t		*icmph;  in icmp_inbound_v4()  local
1367 	icmph = (icmph_t *)&mp->b_rptr[ip_hdr_length];  in icmp_inbound_v4()
1368 	ip2dbg(("icmp_inbound_v4: type %d code %d\n", icmph->icmph_type,  in icmp_inbound_v4()
1369 	    icmph->icmph_code));  in icmp_inbound_v4()
1376 	switch (icmph->icmph_type) {  in icmp_inbound_v4()
1381 		if (icmph->icmph_code == ICMP_FRAGMENTATION_NEEDED)  in icmp_inbound_v4()
1431 			icmph = (icmph_t *)&mp->b_rptr[ip_hdr_length];  in icmp_inbound_v4()
1433 		icmph->icmph_type = ICMP_ECHO_REPLY;  in icmp_inbound_v4()
1435 		icmp_send_reply_v4(mp, ipha, icmph, ira);  in icmp_inbound_v4()
1478 			icmph = (icmph_t *)&mp->b_rptr[ip_hdr_length];  in icmp_inbound_v4()
1493 			icmph = (icmph_t *)&mp->b_rptr[ip_hdr_length];  in icmp_inbound_v4()
1495 		icmph->icmph_type = ICMP_TIME_STAMP_REPLY;  in icmp_inbound_v4()
1496 		tsp = (uint32_t *)&icmph[1];  in icmp_inbound_v4()
1505 		icmp_send_reply_v4(mp, ipha, icmph, ira);  in icmp_inbound_v4()
1539 			icmph = (icmph_t *)&mp->b_rptr[ip_hdr_length];  in icmp_inbound_v4()
1554 			icmph = (icmph_t *)&mp->b_rptr[ip_hdr_length];  in icmp_inbound_v4()
1571 		icmph->icmph_type = ICMP_ADDRESS_MASK_REPLY;  in icmp_inbound_v4()
1572 		bcopy(&ipif->ipif_net_mask, &icmph[1], IP_ADDR_LEN);  in icmp_inbound_v4()
1575 		icmp_send_reply_v4(mp, ipha, icmph, ira);  in icmp_inbound_v4()
1642 	icmph = (icmph_t *)&mp->b_rptr[ip_hdr_length];  in icmp_inbound_v4()
1643 	if (!icmp_inbound_verify_v4(mp, icmph, ira)) {  in icmp_inbound_v4()
1648 	switch (icmph->icmph_type) {  in icmp_inbound_v4()
1650 		icmp_redirect_v4(mp, ipha, icmph, ira);  in icmp_inbound_v4()
1653 		if (icmph->icmph_code == ICMP_FRAGMENTATION_NEEDED) {  in icmp_inbound_v4()
1655 			icmp_inbound_too_big_v4(icmph, ira);  in icmp_inbound_v4()
1659 		icmp_inbound_error_fanout_v4(mp, icmph, ira);  in icmp_inbound_v4()
1672 icmp_send_reply_v4(mblk_t *mp, ipha_t *ipha, icmph_t *icmph,  in icmp_send_reply_v4()  argument
1681 	icmph->icmph_checksum = 0;  in icmp_send_reply_v4()
1682 	icmph->icmph_checksum = IP_CSUM(mp, ip_hdr_length, 0);  in icmp_send_reply_v4()
1750 icmp_inbound_verify_v4(mblk_t *mp, icmph_t *icmph, ip_recv_attr_t *ira)  in icmp_inbound_verify_v4()  argument
1758 	ipha = (ipha_t *)&icmph[1];  in icmp_inbound_verify_v4()
1776 	if (icmph->icmph_type == ICMP_REDIRECT)  in icmp_inbound_verify_v4()
1810 		    !connp->conn_verifyicmp(connp, tcpha, icmph, NULL, ira)) {  in icmp_inbound_verify_v4()
1872 icmp_inbound_too_big_v4(icmph_t *icmph, ip_recv_attr_t *ira)  in icmp_inbound_too_big_v4()  argument
1885 	ipha = (ipha_t *)&icmph[1];  in icmp_inbound_too_big_v4()
1886 	ASSERT(icmph->icmph_type == ICMP_DEST_UNREACHABLE &&  in icmp_inbound_too_big_v4()
1887 	    icmph->icmph_code == ICMP_FRAGMENTATION_NEEDED);  in icmp_inbound_too_big_v4()
1907 	mtu = ntohs(icmph->icmph_du_mtu);  in icmp_inbound_too_big_v4()
1917 	if (icmph->icmph_du_zero != 0 || mtu < ipst->ips_ip_pmtu_min) {  in icmp_inbound_too_big_v4()
1967 	icmph->icmph_du_zero = 0;  in icmp_inbound_too_big_v4()
1968 	icmph->icmph_du_mtu =  htons((uint16_t)dce->dce_pmtu);  in icmp_inbound_too_big_v4()
1969 	DTRACE_PROBE4(ip4__pmtu__change, icmph_t *, icmph, dce_t *,  in icmp_inbound_too_big_v4()
2071 icmp_inbound_error_fanout_v4(mblk_t *mp, icmph_t *icmph, ip_recv_attr_t *ira)  in icmp_inbound_error_fanout_v4()  argument
2086 	ipha = (ipha_t *)&icmph[1];  in icmp_inbound_error_fanout_v4()
2106 	    icmph->icmph_type, icmph->icmph_code));  in icmp_inbound_error_fanout_v4()
2208 		icmph = (icmph_t *)&mp->b_rptr[hdr_length];  in icmp_inbound_error_fanout_v4()
2209 		if (!icmp_inbound_verify_v4(mp, icmph, ira)) {  in icmp_inbound_error_fanout_v4()
2214 		icmp_inbound_error_fanout_v4(mp, icmph, ira);  in icmp_inbound_error_fanout_v4()
2267 			icmph = (icmph_t *)&mp->b_rptr[hdr_length];  in icmp_inbound_error_fanout_v4()
2268 			if (!icmp_inbound_verify_v4(mp, icmph, ira)) {  in icmp_inbound_error_fanout_v4()
2281 			icmp_inbound_error_fanout_v4(mp, icmph, ira);  in icmp_inbound_error_fanout_v4()
2627 icmp_redirect_v4(mblk_t *mp, ipha_t *ipha, icmph_t *icmph, ip_recv_attr_t *ira)  in icmp_redirect_v4()  argument
2636 	inner_ipha = (ipha_t *)&icmph[1];  in icmp_redirect_v4()
2639 	gateway = icmph->icmph_rd_gateway;  in icmp_redirect_v4()
2678 	switch (icmph->icmph_code) {  in icmp_redirect_v4()
2752 	icmph_t	icmph;  in icmp_param_problem()  local
2759 	bzero(&icmph, sizeof (icmph_t));  in icmp_param_problem()
2760 	icmph.icmph_type = ICMP_PARAM_PROBLEM;  in icmp_param_problem()
2761 	icmph.icmph_pp_ptr = ptr;  in icmp_param_problem()
2763 	icmp_pkt(mp, &icmph, sizeof (icmph_t), ira);  in icmp_param_problem()
2779 	icmph_t	*icmph;  in icmp_pkt()  local
2904 	icmph = (icmph_t *)&ipha[1];  in icmp_pkt()
2905 	bcopy(stuff, icmph, len);  in icmp_pkt()
2906 	icmph->icmph_checksum = 0;  in icmp_pkt()
2907 	icmph->icmph_checksum = IP_CSUM(mp, (int32_t)sizeof (ipha_t), 0);  in icmp_pkt()
2978 	icmph_t	*icmph;  in icmp_pkt_err_ok()  local
3015 		icmph = (icmph_t *)  in icmp_pkt_err_ok()
3017 		switch (icmph->icmph_type) {  in icmp_pkt_err_ok()
3134 	icmph_t	icmph;  in icmp_send_redirect()  local
3141 	bzero(&icmph, sizeof (icmph_t));  in icmp_send_redirect()
3142 	icmph.icmph_type = ICMP_REDIRECT;  in icmp_send_redirect()
3143 	icmph.icmph_code = 1;  in icmp_send_redirect()
3144 	icmph.icmph_rd_gateway = gateway;  in icmp_send_redirect()
3146 	icmp_pkt(mp, &icmph, sizeof (icmph_t), ira);  in icmp_send_redirect()
3155 	icmph_t	icmph;  in icmp_time_exceeded()  local
3162 	bzero(&icmph, sizeof (icmph_t));  in icmp_time_exceeded()
3163 	icmph.icmph_type = ICMP_TIME_EXCEEDED;  in icmp_time_exceeded()
3164 	icmph.icmph_code = code;  in icmp_time_exceeded()
3166 	icmp_pkt(mp, &icmph, sizeof (icmph_t), ira);  in icmp_time_exceeded()
3177 	icmph_t	icmph;  in icmp_unreachable()  local
3184 	bzero(&icmph, sizeof (icmph_t));  in icmp_unreachable()
3185 	icmph.icmph_type = ICMP_DEST_UNREACHABLE;  in icmp_unreachable()
3186 	icmph.icmph_code = code;  in icmp_unreachable()
3188 	icmp_pkt(mp, &icmph, sizeof (icmph_t), ira);  in icmp_unreachable()