193 	if (t->parms.iph.daddr == 0 ||  in ipgre_err()
194 	    ipv4_is_multicast(t->parms.iph.daddr))  in ipgre_err()
197 	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)  in ipgre_err()
346 	if (tunnel->parms.o_flags & TUNNEL_SEQ)  in __gre_xmit()
351 			 tunnel->parms.o_flags, proto, tunnel->parms.o_key,  in __gre_xmit()
491 		tnl_params = &tunnel->parms.iph;  in ipgre_xmit()
494 	if (gre_handle_offloads(skb, !!(tunnel->parms.o_flags & TUNNEL_CSUM)))  in ipgre_xmit()
516 	if (gre_handle_offloads(skb, !!(tunnel->parms.o_flags & TUNNEL_CSUM)))  in gre_tap_xmit()
522 	__gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_TEB));  in gre_tap_xmit()
597 	greh->flags = gre_tnl_flags_to_gre_flags(t->parms.o_flags);  in ipgre_header()
600 	memcpy(iph, &t->parms.iph, sizeof(struct iphdr));  in ipgre_header()
630 	if (ipv4_is_multicast(t->parms.iph.daddr)) {  in ipgre_open()
635 					 t->parms.iph.daddr,  in ipgre_open()
636 					 t->parms.iph.saddr,  in ipgre_open()
637 					 t->parms.o_key,  in ipgre_open()
638 					 RT_TOS(t->parms.iph.tos),  in ipgre_open()
639 					 t->parms.link);  in ipgre_open()
647 		ip_mc_inc_group(__in_dev_get_rtnl(dev), t->parms.iph.daddr);  in ipgre_open()
656 	if (ipv4_is_multicast(t->parms.iph.daddr) && t->mlink) {  in ipgre_close()
660 			ip_mc_dec_group(in_dev, t->parms.iph.daddr);  in ipgre_close()
698 	tunnel->tun_hlen = gre_calc_hlen(tunnel->parms.o_flags);  in __gre_tunnel_init()
699 	tunnel->parms.iph.protocol = IPPROTO_GRE;  in __gre_tunnel_init()
711 	if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) {  in __gre_tunnel_init()
716 		if (!(tunnel->parms.o_flags & TUNNEL_CSUM) ||  in __gre_tunnel_init()
732 	struct iphdr *iph = &tunnel->parms.iph;  in ipgre_tunnel_init()
832 				struct ip_tunnel_parm *parms)  in ipgre_netlink_parms()  argument
836 	memset(parms, 0, sizeof(*parms));  in ipgre_netlink_parms()
838 	parms->iph.protocol = IPPROTO_GRE;  in ipgre_netlink_parms()
844 		parms->link = nla_get_u32(data[IFLA_GRE_LINK]);  in ipgre_netlink_parms()
847 		parms->i_flags = gre_flags_to_tnl_flags(nla_get_be16(data[IFLA_GRE_IFLAGS]));  in ipgre_netlink_parms()
850 		parms->o_flags = gre_flags_to_tnl_flags(nla_get_be16(data[IFLA_GRE_OFLAGS]));  in ipgre_netlink_parms()
853 		parms->i_key = nla_get_be32(data[IFLA_GRE_IKEY]);  in ipgre_netlink_parms()
856 		parms->o_key = nla_get_be32(data[IFLA_GRE_OKEY]);  in ipgre_netlink_parms()
859 		parms->iph.saddr = nla_get_in_addr(data[IFLA_GRE_LOCAL]);  in ipgre_netlink_parms()
862 		parms->iph.daddr = nla_get_in_addr(data[IFLA_GRE_REMOTE]);  in ipgre_netlink_parms()
865 		parms->iph.ttl = nla_get_u8(data[IFLA_GRE_TTL]);  in ipgre_netlink_parms()
868 		parms->iph.tos = nla_get_u8(data[IFLA_GRE_TOS]);  in ipgre_netlink_parms()
873 		parms->iph.frag_off = htons(IP_DF);  in ipgre_netlink_parms()
884 		  && (parms->iph.frag_off & htons(IP_DF)))  in ipgre_netlink_parms()
1038 	struct ip_tunnel_parm *p = &t->parms;  in ipgre_fill_info()