2454   printf("%s: %s/ip", ptnl->name, ptnl->iph.protocol == IPPROTO_IPIP ? "ip" :  in display_tunnel()
2455       (ptnl->iph.protocol == IPPROTO_GRE ? "gre" :  in display_tunnel()
2456        (ptnl->iph.protocol == IPPROTO_IPV6 ? "ipv6" : "unknown")));  in display_tunnel()
2457   printf("  remote %s  local %s ", ptnl->iph.daddr ?  in display_tunnel()
2458       inet_ntop(AF_INET, &ptnl->iph.daddr, rmt_addr, sizeof(rmt_addr)) : "any",  in display_tunnel()
2459       ptnl->iph.saddr ? inet_ntop(AF_INET, &ptnl->iph.saddr, lcl_addr,  in display_tunnel()
2471   if (ptnl->iph.ttl) printf(" ttl %d ", ptnl->iph.ttl);  in display_tunnel()
2474   if (ptnl->iph.tos) {  in display_tunnel()
2476     if (ptnl->iph.tos & 1) printf(" inherit");  in display_tunnel()
2477     if (ptnl->iph.tos & ~1) printf("%c%s ", ptnl->iph.tos & 1 ? '/' : ' ',  in display_tunnel()
2478         namefromRPDB((ptnl->iph.tos & ~1), RPDB_rtdsfield));  in display_tunnel()
2480   if (!(ptnl->iph.frag_off & htons(IP_DF))) printf(" nopmtudisc");  in display_tunnel()
2525           strcmp(iptnl.name, ptnl->name)) || (ptnl->iph.daddr &&  in read_tunnel()
2526           iptnl.iph.daddr != ptnl->iph.daddr) || (ptnl->iph.saddr &&  in read_tunnel()
2527             iptnl.iph.saddr != ptnl->iph.saddr) || (ptnl->i_key &&  in read_tunnel()
2548   ptnl->iph.version = 4; // The value indicates the version of IP (4 or 6)  in parse_iptunnel_args()
2549   ptnl->iph.ihl = 5; // Minimum Internet Header Length  in parse_iptunnel_args()
2551   ptnl->iph.frag_off = htons(IP_DF);  in parse_iptunnel_args()
2568           ptnl->iph.protocol = IPPROTO_IPIP;  in parse_iptunnel_args()
2570           ptnl->iph.protocol = IPPROTO_GRE;  in parse_iptunnel_args()
2572           ptnl->iph.protocol = IPPROTO_IPV6;  in parse_iptunnel_args()
2632         ptnl->iph.frag_off = 0;  in parse_iptunnel_args()
2635         ptnl->iph.frag_off = htons(IP_DF);  in parse_iptunnel_args()
2642         (idx == 12) ? (ptnl->iph.daddr = addr) : (ptnl->iph.saddr = addr);  in parse_iptunnel_args()
2660           ptnl->iph.ttl = atolx_range(*argv, 0, 255);  in parse_iptunnel_args()
2675             ptnl->iph.tos = ret;  in parse_iptunnel_args()
2676           } else ptnl->iph.tos = tval;  in parse_iptunnel_args()
2677         } else ptnl->iph.tos = 1;  in parse_iptunnel_args()
2692   if (ptnl->iph.protocol == IPPROTO_IPIP ||  in parse_iptunnel_args()
2693       ptnl->iph.protocol == IPPROTO_IPV6) {  in parse_iptunnel_args()
2701   if (!ptnl->i_key && IN_MULTICAST(ntohl(ptnl->iph.daddr))) {  in parse_iptunnel_args()
2702     ptnl->i_key = ptnl->iph.daddr;  in parse_iptunnel_args()
2705   if (!ptnl->o_key && IN_MULTICAST(ntohl(ptnl->iph.daddr))) {  in parse_iptunnel_args()
2706     ptnl->o_key = ptnl->iph.daddr;  in parse_iptunnel_args()
2709   if (IN_MULTICAST(ntohl(ptnl->iph.daddr)) && !ptnl->iph.saddr)  in parse_iptunnel_args()
2721   if (iptnl.iph.protocol == IPPROTO_IPIP)   in tunnellist()
2723   else if (iptnl.iph.protocol == IPPROTO_GRE)   in tunnellist()
2725   else if (iptnl.iph.protocol == IPPROTO_IPV6)   in tunnellist()
2751   if (idx != 2 && iptnl.iph.ttl && !(iptnl.iph.frag_off))  in tunnelupdate()
2753   if (iptnl.iph.protocol == IPPROTO_IPIP)  in tunnelupdate()
2755   else if (iptnl.iph.protocol == IPPROTO_GRE)  in tunnelupdate()
2757   else if (iptnl.iph.protocol == IPPROTO_IPV6)  in tunnelupdate()