sys/netinet/ip_icmp.c

195 	struct icmp *icp;
327 	icp = mtod(m, struct icmp *);
329 	icp->icmp_type = type;
331 		icp->icmp_gwaddr.s_addr = dest;
333 		icp->icmp_void = 0;
339 			icp->icmp_pptr = code;
343 			icp->icmp_nextmtu = htons(mtu);
346 	icp->icmp_code = code;
352 	m_copydata(n, 0, icmplen, (caddr_t)&icp->icmp_ip);
353 	nip = &icp->icmp_ip;
392 	struct icmp *icp;
431 	icp = mtod(m, struct icmp *);
441 		printf("icmp_input, type %d code %d\n", icp->icmp_type,
442 		    icp->icmp_code);
448 	if (icp->icmp_type > ICMP_MAXTYPE)
462 	ICMPSTAT_INC(icps_inhist[icp->icmp_type]);
463 	code = icp->icmp_code;
464 	switch (icp->icmp_type) {
521 		if (icmplen < ICMP_ADVLENMIN || icmplen < ICMP_ADVLEN(icp) ||
522 		    icp->icmp_ip.ip_hl < (sizeof(struct ip) >> 2)) {
527 		if (IN_MULTICAST(ntohl(icp->icmp_ip.ip_dst.s_addr)))
531 			printf("deliver to protocol %d\n", icp->icmp_ip.ip_p);
533 		icmpsrc.sin_addr = icp->icmp_ip.ip_dst;
538 		i = sizeof(struct ip) + min(icmplen, ICMP_ADVLENPREF(icp));
546 		icp = (struct icmp *)(ip + 1);
555 		ctlfunc = inetsw[ip_protox[icp->icmp_ip.ip_p]].pr_ctlinput;
558 				   (void *)&icp->icmp_ip);
573 		icp->icmp_type = ICMP_ECHOREPLY;
590 		icp->icmp_type = ICMP_TSTAMPREPLY;
591 		icp->icmp_rtime = iptime();
592 		icp->icmp_ttime = icp->icmp_rtime;	/* bogus, do later! */
622 		icp->icmp_type = ICMP_MASKREPLY;
624 			icp->icmp_mask = ia->ia_sockmask.sin_addr.s_addr;
626 			icp->icmp_mask = V_icmpmaskfake;
636 		ICMPSTAT_INC(icps_outhist[icp->icmp_type]);
645 			dst = ntohl(icp->icmp_ip.ip_dst.s_addr);
646 			gw = ntohl(icp->icmp_gwaddr.s_addr);
664 		if (icmplen < ICMP_ADVLENMIN || icmplen < ICMP_ADVLEN(icp) ||
665 		    icp->icmp_ip.ip_hl < (sizeof(struct ip) >> 2)) {
677 		icmpdst.sin_addr = icp->icmp_gwaddr;
684 			       inet_ntoa_r(icp->icmp_ip.ip_dst, dstbuf),
685 			       inet_ntoa_r(icp->icmp_gwaddr, gwbuf));
688 		icmpsrc.sin_addr = icp->icmp_ip.ip_dst;
920 	struct icmp *icp;
925 	icp = mtod(m, struct icmp *);
926 	icp->icmp_cksum = 0;
927 	icp->icmp_cksum = in_cksum(m, ntohs(ip->ip_len) - hlen);