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/*
* Copyright (c) 2021 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/plugin/plugin.h>
#include <vpp/app/version.h>
#include <vnet/session/application_interface.h>
#include <vnet/session/application.h>
#include <srtp2/srtp.h>
#ifndef SRC_PLUGINS_SRTP_SRTP_H_
#define SRC_PLUGINS_SRTP_SRTP_H_
#define SRTP_DEBUG 0
#if SRTP_DEBUG
#define SRTP_DBG(_lvl, _fmt, _args...) \
if (_lvl <= SRTP_DEBUG) \
clib_warning (_fmt, ##_args)
#else
#define SRTP_DBG(_lvl, _fmt, _args...)
#endif
typedef struct srtp_cxt_id_
{
union
{
session_handle_t app_session_handle;
u32 parent_app_api_ctx;
};
session_handle_t srtp_session_handle;
u32 parent_app_wrk_index;
u32 srtp_ctx;
u32 listener_ctx_index;
u8 udp_is_ip4;
} srtp_ctx_id_t;
STATIC_ASSERT (sizeof (srtp_ctx_id_t) <= TRANSPORT_CONN_ID_LEN,
"ctx id must be less than TRANSPORT_CONN_ID_LEN");
#define SRTP_MAX_KEYLEN 46 /**< libsrtp AES 256 key len with salt */
typedef struct transport_endpt_cfg_srtp_policy
{
u32 ssrc_type;
u32 ssrc_value;
u32 window_size;
u8 allow_repeat_tx;
u8 key_len;
u8 key[SRTP_MAX_KEYLEN];
} transport_endpt_cfg_srtp_policy_t;
typedef struct transport_endpt_cfg_srtp
{
transport_endpt_cfg_srtp_policy_t policies[2];
} transport_endpt_cfg_srtp_t;
typedef struct srtp_ctx_
{
union
{
transport_connection_t connection;
srtp_ctx_id_t c_srtp_ctx_id;
};
#define parent_app_wrk_index c_srtp_ctx_id.parent_app_wrk_index
#define app_session_handle c_srtp_ctx_id.app_session_handle
#define srtp_session_handle c_srtp_ctx_id.srtp_session_handle
#define listener_ctx_index c_srtp_ctx_id.listener_ctx_index
#define udp_is_ip4 c_srtp_ctx_id.udp_is_ip4
#define srtp_ctx_engine c_srtp_ctx_id.srtp_engine_id
#define srtp_ssl_ctx c_srtp_ctx_id.ssl_ctx
#define srtp_ctx_handle c_c_index
/* Temporary storage for session open opaque. Overwritten once
* underlying tcp connection is established */
#define parent_app_api_context c_srtp_ctx_id.parent_app_api_ctx
u8 is_passive_close;
u8 resume;
u8 app_closed;
u8 no_app_session;
u8 is_migrated;
srtp_t srtp_ctx;
srtp_policy_t srtp_policy[2];
} srtp_tc_t;
typedef struct srtp_main_
{
srtp_tc_t **ctx_pool;
srtp_tc_t *listener_ctx_pool;
u32 app_index;
clib_rwlock_t half_open_rwlock;
/*
* Config
*/
u64 first_seg_size;
u32 fifo_size;
} srtp_main_t;
#endif /* SRC_PLUGINS_SRTP_SRTP_H_ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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