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Diffstat (limited to 'srtp/include/rtp.h')
| -rw-r--r-- | srtp/include/rtp.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/srtp/include/rtp.h b/srtp/include/rtp.h new file mode 100644 index 0000000..94279f5 --- /dev/null +++ b/srtp/include/rtp.h @@ -0,0 +1,127 @@ +/* + * rtp.h + * + * rtp interface for srtp reference implementation + * + * David A. McGrew + * Cisco Systems, Inc. + * + * data types: + * + * rtp_msg_t an rtp message (the data that goes on the wire) + * rtp_sender_t sender side socket and rtp info + * rtp_receiver_t receiver side socket and rtp info + * + */ + +/* + * + * Copyright (c) 2001-2006, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + + +#ifndef RTP_H +#define RTP_H + +#ifdef HAVE_NETINET_IN_H +# include <netinet/in.h> +#elif defined HAVE_WINSOCK2_H +# include <winsock2.h> +#endif + +#include "srtp.h" + +typedef struct rtp_sender_ctx_t *rtp_sender_t; + +typedef struct rtp_receiver_ctx_t *rtp_receiver_t; + +unsigned int +rtp_sendto(rtp_sender_t sender, const void* msg, int len); + +unsigned int +rtp_recvfrom(rtp_receiver_t receiver, void *msg, int *len); + +int +rtp_receiver_init(rtp_receiver_t rcvr, int socket, + struct sockaddr_in addr, unsigned int ssrc); + +int +rtp_sender_init(rtp_sender_t sender, int socket, + struct sockaddr_in addr, unsigned int ssrc); + +/* + * srtp_sender_init(...) initializes an rtp_sender_t + */ + +int +srtp_sender_init(rtp_sender_t rtp_ctx, /* structure to be init'ed */ + struct sockaddr_in name, /* socket name */ + sec_serv_t security_services, /* sec. servs. to be used */ + unsigned char *input_key /* master key/salt in hex */ + ); + +int +srtp_receiver_init(rtp_receiver_t rtp_ctx, /* structure to be init'ed */ + struct sockaddr_in name, /* socket name */ + sec_serv_t security_services, /* sec. servs. to be used */ + unsigned char *input_key /* master key/salt in hex */ + ); + + +int +rtp_sender_init_srtp(rtp_sender_t sender, const srtp_policy_t *policy); + +int +rtp_receiver_init_srtp(rtp_receiver_t sender, const srtp_policy_t *policy); + + +rtp_sender_t +rtp_sender_alloc(); + +rtp_receiver_t +rtp_receiver_alloc(); + + +/* + * RTP_HEADER_LEN indicates the size of an RTP header + */ +#define RTP_HEADER_LEN 12 + +/* + * RTP_MAX_BUF_LEN defines the largest RTP packet in the rtp.c implementation + */ +#define RTP_MAX_BUF_LEN 16384 + + +#endif /* RTP_H */ |