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/*
* Copyright (c) 2017 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.
*/
#ifndef SRC_VNET_SESSION_TRANSPORT_INTERFACE_H_
#define SRC_VNET_SESSION_TRANSPORT_INTERFACE_H_
#include <vnet/vnet.h>
#include <vnet/session/transport.h>
/*
* Transport protocol virtual function table
*/
typedef struct _transport_proto_vft
{
/*
* Setup
*/
u32 (*bind) (u32 session_index, transport_endpoint_t * lcl);
u32 (*unbind) (u32);
int (*open) (transport_endpoint_t * rmt);
void (*close) (u32 conn_index, u32 thread_index);
void (*cleanup) (u32 conn_index, u32 thread_index);
/*
* Transmission
*/
u32 (*push_header) (transport_connection_t * tconn, vlib_buffer_t * b);
u16 (*send_mss) (transport_connection_t * tc);
u32 (*send_space) (transport_connection_t * tc);
u32 (*tx_fifo_offset) (transport_connection_t * tc);
/*
* Connection retrieval
*/
transport_connection_t *(*get_connection) (u32 conn_idx, u32 thread_idx);
transport_connection_t *(*get_listener) (u32 conn_index);
transport_connection_t *(*get_half_open) (u32 conn_index);
/*
* Format
*/
u8 *(*format_connection) (u8 * s, va_list * args);
u8 *(*format_listener) (u8 * s, va_list * args);
u8 *(*format_half_open) (u8 * s, va_list * args);
} transport_proto_vft_t;
typedef clib_bihash_24_8_t transport_endpoint_table_t;
#define TRANSPORT_ENDPOINT_INVALID_INDEX ((u32)~0)
u32 transport_endpoint_lookup (transport_endpoint_table_t * ht,
ip46_address_t * ip, u16 port);
void transport_endpoint_table_add (transport_endpoint_table_t * ht,
transport_endpoint_t * te, u32 value);
void transport_endpoint_table_del (transport_endpoint_table_t * ht,
transport_endpoint_t * te);
void session_register_transport (transport_proto_t transport_proto, u8 is_ip4,
const transport_proto_vft_t * vft);
transport_proto_vft_t *session_get_transport_vft (u8 session_type);
#endif /* SRC_VNET_SESSION_TRANSPORT_INTERFACE_H_ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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