TLSState.hh

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/**********
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
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// "liveMedia"
// Copyright (c) 1996-2024 Live Networks, Inc.  All rights reserved.
// State encapsulating a TLS connection
// C++ header
 
#ifndef _TLS_STATE_HH
#define _TLS_STATE_HH
 
#ifndef _NET_COMMON_H
#include "NetCommon.h"
#endif
#ifndef _BOOLEAN_HH
#include "Boolean.hh"
#endif
#ifndef _USAGE_ENVIRONMENT_HH
#include "UsageEnvironment.hh"
#endif
#ifndef NO_OPENSSL
#include <openssl/ssl.h>
#endif
 
class TLSState {
public:
  Boolean isNeeded;
 
  int write(const char* data, unsigned count);
  int read(u_int8_t* buffer, unsigned bufferSize);
 
  void nullify(); // clear the state so that the destructor will have no effect
 
protected: // we're an abstract base class
  TLSState();
  virtual ~TLSState();
 
#ifndef NO_OPENSSL
  void initLibrary();
  void reset();
 
protected:
  Boolean fHasBeenSetup;
  SSL_CTX* fCtx;
  SSL* fCon;
#endif
};
 
class ClientTLSState: public TLSState {
public:
  ClientTLSState(class RTSPClient& client);
  virtual ~ClientTLSState();
 
  int connect(int socketNum); // returns: <0 (error), 0 (pending), >0 (success)
 
#ifndef NO_OPENSSL
private:
  Boolean setup(int socketNum);
 
private:
  class RTSPClient& fClient;
#endif
};
 
class ServerTLSState: public TLSState {
public:
  ServerTLSState(UsageEnvironment& env);
  virtual ~ServerTLSState();
 
  void setCertificateAndPrivateKeyFileNames(char const* certFileName, char const* privKeyFileName);
  void assignStateFrom(ServerTLSState const& from);
 
  int accept(int socketNum); // returns: <0 (error), 0 (pending), >0 (success)
 
  Boolean tlsAcceptIsNeeded;
 
#ifndef NO_OPENSSL
private:
  Boolean setup(int socketNum);
 
private:
  UsageEnvironment& fEnv;
  char const* fCertificateFileName;
  char const* fPrivateKeyFileName;
#endif
};
 
#endif