sys/netinet/ip_icmp.c

212 	register struct icmp *icp;
298 	icp = mtod(m, struct icmp *);
300 	icp->icmp_type = type;
302 		icp->icmp_gwaddr.s_addr = dest;
304 		icp->icmp_void = 0;
310 			icp->icmp_pptr = code;
314 			icp->icmp_nextmtu = htons(mtu);
317 	icp->icmp_code = code;
323 	m_copydata(n, 0, icmplen, (caddr_t)&icp->icmp_ip);
324 	nip = &icp->icmp_ip;
359 	struct icmp *icp;
393 	icp = mtod(m, struct icmp *);
405 		switch (icp->icmp_type) {
416 		printf("icmp_input, type %d code %d\n", icp->icmp_type,
417 		    icp->icmp_code);
423 	if (icp->icmp_type > ICMP_MAXTYPE)
437 	ICMPSTAT_INC(icps_inhist[icp->icmp_type]);
438 	code = icp->icmp_code;
439 	switch (icp->icmp_type) {
500 		if (icmplen < ICMP_ADVLENMIN || icmplen < ICMP_ADVLEN(icp) ||
501 		    icp->icmp_ip.ip_hl < (sizeof(struct ip) >> 2)) {
505 		icp->icmp_ip.ip_len = ntohs(icp->icmp_ip.ip_len);
507 		if (IN_MULTICAST(ntohl(icp->icmp_ip.ip_dst.s_addr)))
511 			printf("deliver to protocol %d\n", icp->icmp_ip.ip_p);
513 		icmpsrc.sin_addr = icp->icmp_ip.ip_dst;
518 		ctlfunc = inetsw[ip_protox[icp->icmp_ip.ip_p]].pr_ctlinput;
521 				   (void *)&icp->icmp_ip);
534 		icp->icmp_type = ICMP_ECHOREPLY;
550 		icp->icmp_type = ICMP_TSTAMPREPLY;
551 		icp->icmp_rtime = iptime();
552 		icp->icmp_ttime = icp->icmp_rtime;	/* bogus, do later! */
585 		icp->icmp_type = ICMP_MASKREPLY;
587 			icp->icmp_mask = ia->ia_sockmask.sin_addr.s_addr;
589 			icp->icmp_mask = V_icmpmaskfake;
600 		ICMPSTAT_INC(icps_outhist[icp->icmp_type]);
609 			dst = ntohl(icp->icmp_ip.ip_dst.s_addr);
610 			gw = ntohl(icp->icmp_gwaddr.s_addr);
628 		if (icmplen < ICMP_ADVLENMIN || icmplen < ICMP_ADVLEN(icp) ||
629 		    icp->icmp_ip.ip_hl < (sizeof(struct ip) >> 2)) {
641 		icmpdst.sin_addr = icp->icmp_gwaddr;
645 			strcpy(buf, inet_ntoa(icp->icmp_ip.ip_dst));
648 			       buf, inet_ntoa(icp->icmp_gwaddr));
651 		icmpsrc.sin_addr = icp->icmp_ip.ip_dst;
897 	register struct icmp *icp;
902 	icp = mtod(m, struct icmp *);
903 	icp->icmp_cksum = 0;
904 	icp->icmp_cksum = in_cksum(m, ip->ip_len - hlen);