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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* @brief Common utility functions for IPv4, IPv6 and L2 LISP-GPE tunnels.
*
*/
#ifndef LISP_GPE_TUNNEL_H__
#define LISP_GPE_TUNNEL_H__
#include <lisp/lisp-gpe/lisp_gpe.h>
#include <lisp/lisp-gpe/lisp_gpe_packet.h>
/**
* Forward declaration
*/
struct lisp_gpe_adjacency_t_;
/**
* A Key for a tunnel
*/
typedef struct lisp_gpe_tunnel_key_t_
{
ip_address_t rmt;
ip_address_t lcl;
u32 fib_index;
} lisp_gpe_tunnel_key_t;
/**
* @brief A LISP GPE Tunnel.
*
* A tunnel represents an associatation between a local and remote RLOC.
* As such it represents a unique LISP rewrite.
*/
typedef struct lisp_gpe_tunnel_t_
{
/**
* RLOC pair and rloc fib_index. This is the tunnel's key.
*/
lisp_gpe_tunnel_key_t *key;
/**
* number of reference counting locks
*/
u32 locks;
/**
* the FIB entry through which the remote rloc is reachable
s */
fib_node_index_t fib_entry_index;
} lisp_gpe_tunnel_t;
extern index_t lisp_gpe_tunnel_find_or_create_and_lock (const locator_pair_t *
pair,
u32 rloc_fib_index);
extern void lisp_gpe_tunnel_unlock (index_t lgti);
extern const lisp_gpe_tunnel_t *lisp_gpe_tunnel_get (index_t lgti);
extern u8 *lisp_gpe_tunnel_build_rewrite (const lisp_gpe_tunnel_t * lgt,
const struct lisp_gpe_adjacency_t_
*ladj,
lisp_gpe_next_protocol_e
payload_proto);
extern u8 *format_lisp_gpe_tunnel (u8 * s, va_list * args);
#endif
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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