+import "vnet/interface_types.api";
+import "vnet/tunnel/tunnel_types.api";
+import "vnet/ip/ip_types.api";
+
+/** \brief A GRE tunnel type
+*/
+enum gre_tunnel_type : u8
+{
+ GRE_API_TUNNEL_TYPE_L3 = 0,
+ GRE_API_TUNNEL_TYPE_TEB,
+ GRE_API_TUNNEL_TYPE_ERSPAN,
+};
+
+/** \brief A GRE tunnel
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param tunnel_type - 0: L3, 1: TEB, 2: ERSPAN
+ @param instance - optional unique custom device instance, else ~0.
+ @param mode - P2P or P2MP
+ @param flags - to control encap/decap behaviour
+ @param src - Source IP address
+ @param dst - Destination IP address, can be multicast
+ @param outer_table_id - Encap FIB table ID
+ @param session_id - session for ERSPAN tunnel, range 0-1023
+ @param sw_if_index - ignored on create/delete, present in details.
+*/
+typedef gre_tunnel
+{
+ vl_api_gre_tunnel_type_t type;
+ vl_api_tunnel_mode_t mode;
+ vl_api_tunnel_encap_decap_flags_t flags;
+ u16 session_id;
+ u32 instance;
+ u32 outer_table_id;
+ vl_api_interface_index_t sw_if_index;
+ vl_api_address_t src;
+ vl_api_address_t dst;
+};
+
+define gre_tunnel_add_del