forked from Mirrors/freeswitch
b3d890ef25
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@1086 d0543943-73ff-0310-b7d9-9358b9ac24b2
126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/*
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* rtp.h
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*
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* rtp interface for srtp reference implementation
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*
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* David A. McGrew
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* Cisco Systems, Inc.
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*
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* data types:
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*
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* rtp_msg_t an rtp message (the data that goes on the wire)
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* rtp_sender_t sender side socket and rtp info
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* rtp_receiver_t receiver side socket and rtp info
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*
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*/
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/*
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*
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* Copyright (c) 2001-2005, Cisco Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* Neither the name of the Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef RTP_H
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#define RTP_H
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#include "srtp.h"
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#ifdef HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#elif defined HAVE_WINSOCK2_H
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# include <winsock2.h>
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#endif
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#define rtp_header_len 12
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typedef srtp_hdr_t rtp_hdr_t;
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#define RTP_MAX_BUF_LEN 16384
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typedef struct {
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srtp_hdr_t header;
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char body[RTP_MAX_BUF_LEN];
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} rtp_msg_t;
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typedef struct {
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rtp_msg_t message;
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int socket;
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srtp_ctx_t *srtp_ctx;
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struct sockaddr_in addr; /* reciever's address */
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} rtp_sender_t;
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typedef struct {
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rtp_msg_t message;
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int socket;
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srtp_ctx_t *srtp_ctx;
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struct sockaddr_in addr; /* receiver's address */
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} rtp_receiver_t;
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ssize_t
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rtp_sendto(rtp_sender_t *sender, const void* msg, int len);
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ssize_t
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rtp_recvfrom(rtp_receiver_t *receiver, void *msg, int *len);
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int
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rtp_receiver_init(rtp_receiver_t *rcvr, int socket,
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struct sockaddr_in addr, uint32_t ssrc);
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int
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rtp_sender_init(rtp_sender_t *sender, int socket,
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struct sockaddr_in addr, uint32_t ssrc);
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/*
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* srtp_sender_init(...) initializes an rtp_sender_t
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*
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*/
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int
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srtp_sender_init(rtp_sender_t *rtp_ctx, /* structure to be init'ed */
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struct sockaddr_in name, /* socket name */
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sec_serv_t security_services, /* sec. servs. to be used */
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unsigned char *input_key /* master key/salt in hex */
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);
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int
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srtp_receiver_init(rtp_receiver_t *rtp_ctx, /* structure to be init'ed */
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struct sockaddr_in name, /* socket name */
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sec_serv_t security_services, /* sec. servs. to be used */
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unsigned char *input_key /* master key/salt in hex */
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);
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#endif /* RTP_H */
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