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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.
*/
#include <vnet/session/transport_interface.h>
#include <vnet/session/session.h>
/**
* Per-type vector of transport protocol virtual function tables
*/
transport_proto_vft_t *tp_vfts;
u32
transport_endpoint_lookup (transport_endpoint_table_t * ht,
ip46_address_t * ip, u16 port)
{
clib_bihash_kv_24_8_t kv;
int rv;
kv.key[0] = ip->as_u64[0];
kv.key[1] = ip->as_u64[1];
kv.key[2] = port;
rv = clib_bihash_search_inline_24_8 (ht, &kv);
if (rv == 0)
return kv.value;
return TRANSPORT_ENDPOINT_INVALID_INDEX;
}
void
transport_endpoint_table_add (transport_endpoint_table_t * ht,
transport_endpoint_t * te, u32 value)
{
clib_bihash_kv_24_8_t kv;
kv.key[0] = te->ip.as_u64[0];
kv.key[1] = te->ip.as_u64[1];
kv.key[2] = te->port;
kv.value = value;
clib_bihash_add_del_24_8 (ht, &kv, 1);
}
void
transport_endpoint_table_del (transport_endpoint_table_t * ht,
transport_endpoint_t * te)
{
clib_bihash_kv_24_8_t kv;
kv.key[0] = te->ip.as_u64[0];
kv.key[1] = te->ip.as_u64[1];
kv.key[2] = te->port;
clib_bihash_add_del_24_8 (ht, &kv, 0);
}
/**
* Register transport virtual function table.
*
* @param type - session type (not protocol type)
* @param vft - virtual function table
*/
void
session_register_transport (transport_proto_t transport_proto, u8 is_ip4,
const transport_proto_vft_t * vft)
{
u8 session_type;
session_type = session_type_from_proto_and_ip (transport_proto, is_ip4);
vec_validate (tp_vfts, session_type);
tp_vfts[session_type] = *vft;
/* If an offset function is provided, then peek instead of dequeue */
session_manager_set_transport_rx_fn (session_type,
vft->tx_fifo_offset != 0);
}
/**
* Get transport virtual function table
*
* @param type - session type (not protocol type)
*/
transport_proto_vft_t *
session_get_transport_vft (u8 session_type)
{
if (session_type >= vec_len (tp_vfts))
return 0;
return &tp_vfts[session_type];
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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