+ gro_cells_receive(&tunnel->gro_cells, skb);
+ return 0;
+
+drop:
+ kfree_skb(skb);
+ return 0;
+}
+
+int ip6_tnl_rcv(struct ip6_tnl *t, struct sk_buff *skb,
+ const struct tnl_ptk_info *tpi,
+ struct metadata_dst *tun_dst,
+ bool log_ecn_err)
+{
+ return __ip6_tnl_rcv(t, skb, tpi, NULL, ip6ip6_dscp_ecn_decapsulate,
+ log_ecn_err);
+}
+EXPORT_SYMBOL(ip6_tnl_rcv);
+
+static const struct tnl_ptk_info tpi_v6 = {
+ /* no tunnel info required for ipxip6. */
+ .proto = htons(ETH_P_IPV6),
+};
+
+static const struct tnl_ptk_info tpi_v4 = {
+ /* no tunnel info required for ipxip6. */
+ .proto = htons(ETH_P_IP),
+};
+
+static int ipxip6_rcv(struct sk_buff *skb, u8 ipproto,
+ const struct tnl_ptk_info *tpi,
+ int (*dscp_ecn_decapsulate)(const struct ip6_tnl *t,
+ const struct ipv6hdr *ipv6h,
+ struct sk_buff *skb))
+{
+ struct ip6_tnl *t;
+ const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+ int ret = -1;
+
+ rcu_read_lock();
+ t = ip6_tnl_lookup(dev_net(skb->dev), &ipv6h->saddr, &ipv6h->daddr);
+
+ if (t) {
+ u8 tproto = ACCESS_ONCE(t->parms.proto);
+
+ if (tproto != ipproto && tproto != 0)
+ goto drop;
+ if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb))
+ goto drop;
+ if (!ip6_tnl_rcv_ctl(t, &ipv6h->daddr, &ipv6h->saddr))
+ goto drop;
+ if (iptunnel_pull_header(skb, 0, tpi->proto, false))
+ goto drop;
+ ret = __ip6_tnl_rcv(t, skb, tpi, NULL, dscp_ecn_decapsulate,
+ log_ecn_error);