bsd/netinet/ip_icmp.c

202 	struct icmp *icp;
257 	icp = mtod(m, struct icmp *);
261 	icp->icmp_type = type;
263 		icp->icmp_gwaddr.s_addr = dest;
265 		icp->icmp_void = 0;
271 			icp->icmp_pptr = code;
275 			icp->icmp_nextmtu = htons(nextmtu);
279 	icp->icmp_code = code;
280 	m_copydata(n, 0, icmplen, (caddr_t)&icp->icmp_ip);
281 	nip = &icp->icmp_ip;
325 	struct icmp *icp;
365 	icp = mtod(m, struct icmp *);
375 		printf("icmp_input, type %d code %d\n", icp->icmp_type,
376 		    icp->icmp_code);
382 	if (icp->icmp_type > ICMP_MAXTYPE)
384 	icmpstat.icps_inhist[icp->icmp_type]++;
385 	code = icp->icmp_code;
386 	switch (icp->icmp_type) {
447 		if (icmplen < ICMP_ADVLENMIN || icmplen < ICMP_ADVLEN(icp) ||
448 		    IP_VHL_HL(icp->icmp_ip.ip_vhl) < (sizeof(struct ip) >> 2)) {
454 		NTOHS(icp->icmp_ip.ip_len);
458 		if (IN_MULTICAST(ntohl(icp->icmp_ip.ip_dst.s_addr)))
462 			printf("deliver to protocol %d\n", icp->icmp_ip.ip_p);
464 		icmpsrc.sin_addr = icp->icmp_ip.ip_dst;
470 		ctlfunc = ip_protox[icp->icmp_ip.ip_p]->pr_ctlinput;
473 				   (void *)&icp->icmp_ip);
486 		icp->icmp_type = ICMP_ECHOREPLY;
508 		icp->icmp_type = ICMP_TSTAMPREPLY;
509 		icp->icmp_rtime = iptime();
510 		icp->icmp_ttime = icp->icmp_rtime;	/* bogus, do later! */
548 		icp->icmp_type = ICMP_MASKREPLY;
549 		icp->icmp_mask = ia->ia_sockmask.sin_addr.s_addr;
561 		icmpstat.icps_outhist[icp->icmp_type]++;
570 			dst = ntohl(icp->icmp_ip.ip_dst.s_addr);
571 			gw = ntohl(icp->icmp_gwaddr.s_addr);
585 		if (icmplen < ICMP_ADVLENMIN || icmplen < ICMP_ADVLEN(icp) ||
586 		    IP_VHL_HL(icp->icmp_ip.ip_vhl) < (sizeof(struct ip) >> 2)) {
598 		icmpdst.sin_addr = icp->icmp_gwaddr;
604 			       inet_ntop(AF_INET, &icp->icmp_ip.ip_dst, buf, sizeof(buf)),
605 			       inet_ntop(AF_INET, &icp->icmp_gwaddr, ipv4str,
609 		icmpsrc.sin_addr = icp->icmp_ip.ip_dst;
812 	struct icmp *icp;
825 	icp = mtod(m, struct icmp *);
826 	icp->icmp_cksum = 0;
827 	icp->icmp_cksum = in_cksum(m, ip->ip_len - hlen);
1091 	struct icmp *icp;
1148 		icp = (struct icmp *)(void *)(((char *)m->m_data) + hlen);
1154 		icp = mtod(m, struct icmp *);
1159 	if (icp->icmp_code != 0)
1161 	switch (icp->icmp_type) {