FlowDtlsSocketContext.hxx

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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
 
#if !defined(FlowDtlsSocketContext_hxx)
#define FlowDtlsSocketContext_hxx 
 
#include <asio.hpp>
#ifdef USE_SSL
#include <asio/ssl.hpp>
#endif
#include "Srtp2Helper.hxx"
 
#include "dtls_wrapper/DtlsSocket.hxx"
#include "Flow.hxx"
 
namespace flowmanager
{
 
class FlowDtlsSocketContext : public dtls::DtlsSocketContext
{
public:
   FlowDtlsSocketContext(Flow& flow, const asio::ip::address& address, unsigned short port);
   virtual ~FlowDtlsSocketContext();
 
   // DtlsSocketContext Virtual Fns
   virtual void write(const unsigned char* data, unsigned int len);
   virtual void handshakeCompleted();
   virtual void handshakeFailed(const char *err);
   virtual std::shared_ptr<std::mutex> timerLock();
 
   srtp_t* getSrtpSessionIn() { return &mSRTPSessionIn; }
   srtp_t* getSrtpSessionOut() { return &mSRTPSessionOut; }
   bool isSrtpInitialized() { return mSrtpInitialized; }
 
   // Checks the peer's certificate against the remote SDP fingerprint: sets up SRTP if it
   // matches, and tears it down if it doesn't.  Does nothing until the handshake has completed,
   // or while there is no fingerprint.  Called with the Flow's mutex held.
   void checkRemoteFingerprint(const resip::Data& hashFunction, const resip::Data& fingerprint);
 
   srtp_err_status_t srtpProtect(void* data, int* size, bool rtcp);
   srtp_err_status_t srtpUnprotect(void* data, int* size, bool rtcp);
 
private:
   bool createSrtpSessions();
   void destroySrtpSessions();
 
   Flow& mFlow;
   asio::ip::address mAddress;
   unsigned short mPort;
   srtp_t mSRTPSessionIn;
   srtp_t mSRTPSessionOut;
   volatile bool mSrtpInitialized;
};
 
}
 
#endif
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