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/***************************************************************************
* Copyright (C) 2012 by Timothy Pearson *
* kb9vqf@pearsoncomputing.net *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef TDEKRBCLIENTSOCKET_H
#define TDEKRBCLIENTSOCKET_H
#include <tqsocket.h>
#define N_CALLBACKS 3
class TQBuffer;
class SASLDataPrivate;
class TDEKerberosClientSocket : public TQSocket
{
Q_OBJECT
public:
enum KerberosStatus {
KerberosNotRequested,
KerberosFailure,
KerberosInitializing,
KerberosInUse
};
public:
TDEKerberosClientSocket(TQObject *parent=0, const char *name=0);
virtual ~TDEKerberosClientSocket();
bool open(int mode);
void close();
void flush();
Offset size() const;
Offset at() const;
bool at(Offset off, int hidebasehack=0);
bool atEnd() const;
int getch();
int putch(int);
int ungetch(int);
TQ_LONG readBlock(char *data, TQ_ULONG maxlen);
TQ_LONG writeBlock(const char *data, TQ_ULONG len);
TQ_LONG readLine(char *data, TQ_ULONG maxlen);
TQString readLine();
void writeLine(TQString);
TQ_ULONG bytesAvailable() const;
int setUsingKerberos(bool krbactive);
void setServiceName(TQString name);
void setServerFQDN(TQString name);
void setDataTimeout(int timeoutms);
KerberosStatus kerberosStatus() const;
bool canReadData();
void clearIncomingData();
int writeEndOfFrame();
bool canReadFrame();
void clearFrameTail();
public slots:
int processPendingData();
private:
int initializeKerberosInterface();
void freeKerberosConnection();
void sendSASLDataToNetwork(const char *buffer, unsigned length);
int getSASLDataFromNetwork(char *buf, int trunclen, bool shouldblock=true);
int transmitEncryptedData(const char* readbuf, int cc);
int receiveEncryptedData(char *buf, unsigned int trunclen, bool shouldblock=true);
void setStatusMessage(TQString message);
private slots:
void continueKerberosInitialization();
signals:
void statusMessageUpdated(const TQString&);
void newDataReceived();
private:
bool m_kerberosRequested;
TQString m_serviceName;
TQString m_serverFQDN;
int m_criticalSection;
TQBuffer* m_buffer;
long m_bufferLength;
bool m_krbInitRunning;
int m_krbInitState;
TQString m_prevStatusMessage;
int m_dataTimeout;
TQTimer* kerberosInitLoopTimer;
bool* m_canary;
private:
SASLDataPrivate *saslData;
unsigned int m_negotiatedMaxBufferSize;
int m_krbInitResult;
int m_krbInitServerLast;
};
#endif // TDEKRBCLIENTSOCKET_H
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