201 	if (t->parms.iph.daddr == 0 ||  in ipgre_err()
202 	    ipv4_is_multicast(t->parms.iph.daddr))  in ipgre_err()
205 	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)  in ipgre_err()
446 	if (tunnel->parms.o_flags & TUNNEL_SEQ)  in __gre_xmit()
451 			 tunnel->parms.o_flags, proto, tunnel->parms.o_key,  in __gre_xmit()
702 		tnl_params = &tunnel->parms.iph;  in ipgre_xmit()
705 	if (gre_handle_offloads(skb, !!(tunnel->parms.o_flags & TUNNEL_CSUM)))  in ipgre_xmit()
741 		erspan_build_header(skb, ntohl(tunnel->parms.o_key),  in erspan_xmit()
745 		erspan_build_header_v2(skb, ntohl(tunnel->parms.o_key),  in erspan_xmit()
751 	tunnel->parms.o_flags &= ~TUNNEL_KEY;  in erspan_xmit()
752 	__gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_ERSPAN));  in erspan_xmit()
771 	if (gre_handle_offloads(skb, !!(tunnel->parms.o_flags & TUNNEL_CSUM)))  in gre_tap_xmit()
777 	__gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_TEB));  in gre_tap_xmit()
792 	tunnel->tun_hlen = gre_calc_hlen(tunnel->parms.o_flags);  in ipgre_link_update()
800 	if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) {  in ipgre_link_update()
801 		if (!(tunnel->parms.o_flags & TUNNEL_CSUM) ||  in ipgre_link_update()
842 		t->parms.i_flags = p.i_flags;  in ipgre_tunnel_ioctl()
843 		t->parms.o_flags = p.o_flags;  in ipgre_tunnel_ioctl()
895 	greh->flags = gre_tnl_flags_to_gre_flags(t->parms.o_flags);  in ipgre_header()
898 	memcpy(iph, &t->parms.iph, sizeof(struct iphdr));  in ipgre_header()
928 	if (ipv4_is_multicast(t->parms.iph.daddr)) {  in ipgre_open()
933 					 t->parms.iph.daddr,  in ipgre_open()
934 					 t->parms.iph.saddr,  in ipgre_open()
935 					 t->parms.o_key,  in ipgre_open()
936 					 RT_TOS(t->parms.iph.tos),  in ipgre_open()
937 					 t->parms.link);  in ipgre_open()
945 		ip_mc_inc_group(__in_dev_get_rtnl(dev), t->parms.iph.daddr);  in ipgre_open()
954 	if (ipv4_is_multicast(t->parms.iph.daddr) && t->mlink) {  in ipgre_close()
958 			ip_mc_dec_group(in_dev, t->parms.iph.daddr);  in ipgre_close()
995 	tunnel->tun_hlen = gre_calc_hlen(tunnel->parms.o_flags);  in __gre_tunnel_init()
996 	tunnel->parms.iph.protocol = IPPROTO_GRE;  in __gre_tunnel_init()
1003 	if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) {  in __gre_tunnel_init()
1008 		if (!(tunnel->parms.o_flags & TUNNEL_CSUM) ||  in __gre_tunnel_init()
1024 	struct iphdr *iph = &tunnel->parms.iph;  in ipgre_tunnel_init()
1161 				struct ip_tunnel_parm *parms,  in ipgre_netlink_parms()  argument
1166 	memset(parms, 0, sizeof(*parms));  in ipgre_netlink_parms()
1168 	parms->iph.protocol = IPPROTO_GRE;  in ipgre_netlink_parms()
1174 		parms->link = nla_get_u32(data[IFLA_GRE_LINK]);  in ipgre_netlink_parms()
1177 		parms->i_flags = gre_flags_to_tnl_flags(nla_get_be16(data[IFLA_GRE_IFLAGS]));  in ipgre_netlink_parms()
1180 		parms->o_flags = gre_flags_to_tnl_flags(nla_get_be16(data[IFLA_GRE_OFLAGS]));  in ipgre_netlink_parms()
1183 		parms->i_key = nla_get_be32(data[IFLA_GRE_IKEY]);  in ipgre_netlink_parms()
1186 		parms->o_key = nla_get_be32(data[IFLA_GRE_OKEY]);  in ipgre_netlink_parms()
1189 		parms->iph.saddr = nla_get_in_addr(data[IFLA_GRE_LOCAL]);  in ipgre_netlink_parms()
1192 		parms->iph.daddr = nla_get_in_addr(data[IFLA_GRE_REMOTE]);  in ipgre_netlink_parms()
1195 		parms->iph.ttl = nla_get_u8(data[IFLA_GRE_TTL]);  in ipgre_netlink_parms()
1198 		parms->iph.tos = nla_get_u8(data[IFLA_GRE_TOS]);  in ipgre_netlink_parms()
1203 		parms->iph.frag_off = htons(IP_DF);  in ipgre_netlink_parms()
1214 		  && (parms->iph.frag_off & htons(IP_DF)))  in ipgre_netlink_parms()
1311 	tunnel->parms.iph.protocol = IPPROTO_GRE;  in erspan_tunnel_init()
1399 	t->parms.i_flags = p.i_flags;  in ipgre_changelink()
1400 	t->parms.o_flags = p.o_flags;  in ipgre_changelink()
1459 	struct ip_tunnel_parm *p = &t->parms;  in ipgre_fill_info()