sys/netinet/ip_icmp.c

230 	struct icmp *icp;
314 	icp = mtod(m, struct icmp *);
318 	icp->icmp_type = type;
320 		icp->icmp_gwaddr.s_addr = dest;
322 		icp->icmp_void = 0;
328 			icp->icmp_pptr = code;
332 			icp->icmp_nextmtu = htons(destmtu);
335 	icp->icmp_code = code;
336 	m_copydata(n, 0, icmplen, (void *)&icp->icmp_ip);
396 	struct icmp *icp;
435 	icp = mtod(m, struct icmp *);
449 		printf("icmp_input(type:%d, code:%d)\n", icp->icmp_type,
450 		    icp->icmp_code);
452 	if (icp->icmp_type > ICMP_MAXTYPE)
454 	ICMP_STATINC(ICMP_STAT_INHIST + icp->icmp_type);
455 	code = icp->icmp_code;
456 	switch (icp->icmp_type) {
521 		if (icmplen < ICMP_ADVLENMIN || icmplen < ICMP_ADVLEN(icp) ||
522 		    icp->icmp_ip.ip_hl < (sizeof(struct ip) >> 2)) {
526 		if (IN_MULTICAST(icp->icmp_ip.ip_dst.s_addr))
530 			printf("deliver to protocol %d\n", icp->icmp_ip.ip_p);
532 		icmpsrc.sin_addr = icp->icmp_ip.ip_dst;
533 		ctlfunc = inetsw[ip_protox[icp->icmp_ip.ip_p]].pr_ctlinput;
536 			    &icp->icmp_ip);
549 		icp->icmp_type = ICMP_ECHOREPLY;
562 		icp->icmp_type = ICMP_TSTAMPREPLY;
563 		icp->icmp_rtime = iptime();
564 		icp->icmp_ttime = icp->icmp_rtime;	/* bogus, do later! */
587 		icp->icmp_type = ICMP_MASKREPLY;
588 		icp->icmp_mask = ia->ia_sockmask.sin_addr.s_addr;
599 			icps[ICMP_STAT_OUTHIST + icp->icmp_type]++;
610 		if (icmplen < ICMP_ADVLENMIN || icmplen < ICMP_ADVLEN(icp) ||
611 		    icp->icmp_ip.ip_hl < (sizeof(struct ip) >> 2)) {
623 		icmpdst.sin_addr = icp->icmp_gwaddr;
627 			    inet_ntoa(icp->icmp_ip.ip_dst),
628 			    inet_ntoa(icp->icmp_gwaddr));
631 		icmpsrc.sin_addr = icp->icmp_ip.ip_dst;
642 				    icp->icmp_ip.ip_dst.s_addr, i);
896 	struct icmp *icp;
901 	icp = mtod(m, struct icmp *);
902 	icp->icmp_cksum = 0;
903 	icp->icmp_cksum = in_cksum(m, ntohs(ip->ip_len) - hlen);
1093 icmp_mtudisc(struct icmp *icp, struct in_addr faddr)
1098 	u_long mtu = ntohs(icp->icmp_nextmtu);  /* Why a long?  IPv6 */
1130 		mtu = ntohs(icp->icmp_ip.ip_len);
1133 			mtu -= (icp->icmp_ip.ip_hl << 2);