[qca-nss-ecm] skip l2tp/pptp tunnel encapsulated traffic for ipv6

Change-Id: I890d29038c22cf1f8c5aafcc2a0d1b0248b33982
Signed-off-by: Xiaoping Fan <xfan@codeaurora.org>
diff --git a/ecm_interface.h b/ecm_interface.h
index e395685..ead61a7 100644
--- a/ecm_interface.h
+++ b/ecm_interface.h
@@ -47,6 +47,7 @@
 bool ecm_interface_mac_addr_get(ip_addr_t addr, uint8_t *mac_addr, bool *on_link, ip_addr_t gw_addr);
 bool ecm_interface_find_route_by_addr(ip_addr_t addr, struct ecm_interface_route *ecm_rt);
 void ecm_interface_route_release(struct ecm_interface_route *rt);
+bool ecm_interface_skip_l2tp_pptp(struct sk_buff *skb, const struct net_device *out);
 struct ecm_db_iface_instance *ecm_interface_establish_and_ref(struct net_device *dev);
 int32_t ecm_interface_heirarchy_construct(struct ecm_db_iface_instance *interfaces[], ip_addr_t packet_src_addr, ip_addr_t packet_dest_addr, int packet_protocol, struct net_device *given_dest_dev, bool is_routed, struct net_device *given_src_dev, uint8_t *dest_node_addr, uint8_t *src_node_addr);
 void ecm_interface_stats_update(struct ecm_db_connection_instance *ci, uint32_t from_tx_packets, uint32_t from_tx_bytes, uint32_t from_rx_packets, uint32_t from_rx_bytes, uint32_t to_tx_packets, uint32_t to_tx_bytes, uint32_t to_rx_packets, uint32_t to_rx_bytes);