188 	if (t->parms.iph.daddr == 0 ||  in ipgre_err()
189 	    ipv4_is_multicast(t->parms.iph.daddr))  in ipgre_err()
192 	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)  in ipgre_err()
234 	tpi.flags = tunnel->parms.o_flags;  in __gre_xmit()
236 	tpi.key = tunnel->parms.o_key;  in __gre_xmit()
237 	if (tunnel->parms.o_flags & TUNNEL_SEQ)  in __gre_xmit()
272 		tnl_params = &tunnel->parms.iph;  in ipgre_xmit()
275 	skb = gre_handle_offloads(skb, !!(tunnel->parms.o_flags&TUNNEL_CSUM));  in ipgre_xmit()
295 	skb = gre_handle_offloads(skb, !!(tunnel->parms.o_flags&TUNNEL_CSUM));  in gre_tap_xmit()
302 	__gre_xmit(skb, dev, &tunnel->parms.iph, htons(ETH_P_TEB));  in gre_tap_xmit()
379 	greh->flags = tnl_flags_to_gre_flags(t->parms.o_flags);  in ipgre_header()
382 	memcpy(iph, &t->parms.iph, sizeof(struct iphdr));  in ipgre_header()
412 	if (ipv4_is_multicast(t->parms.iph.daddr)) {  in ipgre_open()
417 					 t->parms.iph.daddr,  in ipgre_open()
418 					 t->parms.iph.saddr,  in ipgre_open()
419 					 t->parms.o_key,  in ipgre_open()
420 					 RT_TOS(t->parms.iph.tos),  in ipgre_open()
421 					 t->parms.link);  in ipgre_open()
429 		ip_mc_inc_group(__in_dev_get_rtnl(dev), t->parms.iph.daddr);  in ipgre_open()
438 	if (ipv4_is_multicast(t->parms.iph.daddr) && t->mlink) {  in ipgre_close()
442 			ip_mc_dec_group(in_dev, t->parms.iph.daddr);  in ipgre_close()
480 	tunnel->tun_hlen = ip_gre_calc_hlen(tunnel->parms.o_flags);  in __gre_tunnel_init()
481 	tunnel->parms.iph.protocol = IPPROTO_GRE;  in __gre_tunnel_init()
493 	if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) {  in __gre_tunnel_init()
507 	struct iphdr *iph = &tunnel->parms.iph;  in ipgre_tunnel_init()
600 			       struct ip_tunnel_parm *parms)  in ipgre_netlink_parms()  argument
602 	memset(parms, 0, sizeof(*parms));  in ipgre_netlink_parms()
604 	parms->iph.protocol = IPPROTO_GRE;  in ipgre_netlink_parms()
610 		parms->link = nla_get_u32(data[IFLA_GRE_LINK]);  in ipgre_netlink_parms()
613 		parms->i_flags = gre_flags_to_tnl_flags(nla_get_be16(data[IFLA_GRE_IFLAGS]));  in ipgre_netlink_parms()
616 		parms->o_flags = gre_flags_to_tnl_flags(nla_get_be16(data[IFLA_GRE_OFLAGS]));  in ipgre_netlink_parms()
619 		parms->i_key = nla_get_be32(data[IFLA_GRE_IKEY]);  in ipgre_netlink_parms()
622 		parms->o_key = nla_get_be32(data[IFLA_GRE_OKEY]);  in ipgre_netlink_parms()
625 		parms->iph.saddr = nla_get_in_addr(data[IFLA_GRE_LOCAL]);  in ipgre_netlink_parms()
628 		parms->iph.daddr = nla_get_in_addr(data[IFLA_GRE_REMOTE]);  in ipgre_netlink_parms()
631 		parms->iph.ttl = nla_get_u8(data[IFLA_GRE_TTL]);  in ipgre_netlink_parms()
634 		parms->iph.tos = nla_get_u8(data[IFLA_GRE_TOS]);  in ipgre_netlink_parms()
637 		parms->iph.frag_off = htons(IP_DF);  in ipgre_netlink_parms()
774 	struct ip_tunnel_parm *p = &t->parms;  in ipgre_fill_info()