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/* Copyright (c) 2013, 2015 Nicira, Inc.
*
* 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.
*/
#ifndef TUNNEL_H
#define TUNNEL_H 1
#include <stdbool.h>
#include <stdint.h>
#include "flow.h"
/* Tunnel port emulation layer.
*
* These functions emulate tunnel virtual ports based on the outer
* header information from the kernel. */
struct ovs_action_push_tnl;
struct ofport_dpif;
struct netdev;
struct netdev_tnl_build_header_params;
void ofproto_tunnel_init(void);
bool tnl_port_reconfigure(const struct ofport_dpif *, const struct netdev *,
odp_port_t new_odp_port, odp_port_t old_odp_port,
bool native_tnl, const char name[]);
int tnl_port_add(const struct ofport_dpif *, const struct netdev *,
odp_port_t, bool native_tnl, const char name[]);
void tnl_port_del(const struct ofport_dpif *, odp_port_t);
const struct ofport_dpif *tnl_port_receive(const struct flow *);
void tnl_wc_init(struct flow *, struct flow_wildcards *);
bool tnl_process_ecn(struct flow *);
odp_port_t tnl_port_send(const struct ofport_dpif *, struct flow *,
struct flow_wildcards *wc);
const char *tnl_port_get_type(const struct ofport_dpif *tnl_port);
/* Returns true if 'flow' should be submitted to tnl_port_receive(). */
static inline bool
tnl_port_should_receive(const struct flow *flow)
{
return flow_tnl_dst_is_set(&flow->tunnel);
}
int
tnl_port_build_header(const struct ofport_dpif *ofport,
struct ovs_action_push_tnl *data,
const struct netdev_tnl_build_header_params *params);
#endif /* tunnel.h */
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