/**
* @brief Send a ZRTP packet via RTP transport modifiers.
*
* ZRTP calls this method to send a ZRTP packet via the RTP session.
*
* @param[in] clientData Pointer to our ZrtpContext structure used to retrieve RTP session
* @param[in] data Points to ZRTP message to send.
* @param[in] length The length in bytes of the data
* @return 0 on success
*/
static int32_t ms_zrtp_sendDataZRTP (void *clientData, const uint8_t* data, uint16_t length ){
MSZrtpContext *userData = (MSZrtpContext *)clientData;
RtpSession *session = userData->stream_sessions->rtp_session;
RtpTransport *rtpt=NULL;
mblk_t *msg;
ms_message("ZRTP Send packet type %.8s on rtp session [%p]", data+16, session);
/* get RTP transport from session */
rtp_session_get_transports(session,&rtpt,NULL);
/* generate message from raw data */
msg = rtp_session_create_packet_raw(data, length);
meta_rtp_transport_modifier_inject_packet(rtpt, userData->rtp_modifier, msg , 0);
freemsg(msg);
return 0;
}
/**
* Send a DTLS packet via RTCP.
*
* DTLS calls this method to send a DTLS packet via the RTCP session.
*
* @param ctx
* Pointer to the MSDtlsSrtpContext structure.
* @param data
* Points to DTLS message to send.
* @param length
* The length in bytes of the data
* @return
* length of data sent
*/
static int ms_dtls_srtp_rtcp_sendData (void *ctx, const unsigned char *data, size_t length ){
MSDtlsSrtpContext *context = (MSDtlsSrtpContext *)ctx;
RtpSession *session = context->stream_sessions->rtp_session;
RtpTransport *rtcpt=NULL;
mblk_t *msg;
int ret;
ms_message("DTLS Send RTCP packet len %d sessions: %p rtp session %p", (int)length, context->stream_sessions, context->stream_sessions->rtp_session);
/* get RTCP transport from session */
rtp_session_get_transports(session,NULL,&rtcpt);
/* generate message from raw data */
msg = rtp_session_create_packet_raw((uint8_t *)data, length);
ret = meta_rtp_transport_modifier_inject_packet(rtcpt, context->rtcp_modifier, msg , 0);
freemsg(msg);
return ret;
}
