2010-06-08 05:29:08 +00:00
|
|
|
/*
|
|
|
|
* Asterisk -- An open source telephony toolkit.
|
|
|
|
*
|
|
|
|
* Copyright (C) 2006 - 2007, Mikael Magnusson
|
|
|
|
*
|
|
|
|
* Mikael Magnusson <mikma@users.sourceforge.net>
|
|
|
|
*
|
|
|
|
* See http://www.asterisk.org for more information about
|
|
|
|
* the Asterisk project. Please do not directly contact
|
|
|
|
* any of the maintainers of this project for assistance;
|
|
|
|
* the project provides a web site, mailing lists and IRC
|
|
|
|
* channels for your use.
|
|
|
|
*
|
|
|
|
* This program is free software, distributed under the terms of
|
|
|
|
* the GNU General Public License Version 2. See the LICENSE file
|
|
|
|
* at the top of the source tree.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*! \file sip_srtp.h
|
|
|
|
*
|
|
|
|
* \brief SIP Secure RTP (SRTP)
|
|
|
|
*
|
|
|
|
* Specified in RFC 3711
|
|
|
|
*
|
|
|
|
* \author Mikael Magnusson <mikma@users.sourceforge.net>
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef _SIP_SRTP_H
|
|
|
|
#define _SIP_SRTP_H
|
|
|
|
|
|
|
|
#include "sdp_crypto.h"
|
|
|
|
|
|
|
|
/* SRTP flags */
|
|
|
|
#define SRTP_ENCR_OPTIONAL (1 << 1) /* SRTP encryption optional */
|
|
|
|
#define SRTP_CRYPTO_ENABLE (1 << 2)
|
|
|
|
#define SRTP_CRYPTO_OFFER_OK (1 << 3)
|
2011-09-20 16:56:11 +00:00
|
|
|
#define SRTP_CRYPTO_TAG_32 (1 << 4)
|
|
|
|
#define SRTP_CRYPTO_TAG_80 (1 << 5)
|
2010-06-08 05:29:08 +00:00
|
|
|
|
|
|
|
/*! \brief structure for secure RTP audio */
|
|
|
|
struct sip_srtp {
|
|
|
|
unsigned int flags;
|
|
|
|
struct sdp_crypto *crypto;
|
|
|
|
};
|
|
|
|
|
|
|
|
/*!
|
|
|
|
* \brief allocate a sip_srtp structure
|
|
|
|
* \retval a new malloc'd sip_srtp structure on success
|
|
|
|
* \retval NULL on failure
|
|
|
|
*/
|
|
|
|
struct sip_srtp *sip_srtp_alloc(void);
|
|
|
|
|
|
|
|
/*!
|
|
|
|
* \brief free a sip_srtp structure
|
|
|
|
* \param srtp a sip_srtp structure
|
|
|
|
*/
|
|
|
|
void sip_srtp_destroy(struct sip_srtp *srtp);
|
|
|
|
|
|
|
|
#endif /* _SIP_SRTP_H */
|