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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
*
* This 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 software 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 software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
// SSecurityVncAuth - legacy VNC authentication protocol.
// The getPasswd call can be overridden if you wish to store
// the VncAuth password in an implementation-specific place.
// Otherwise, the password is read from a BinaryParameter
// called Password.
#ifndef __RFB_SSECURITYVNCAUTH_H__
#define __RFB_SSECURITYVNCAUTH_H__
#include <stdint.h>
#include <rfb/Configuration.h>
#include <rfb/SSecurity.h>
#include <rfb/Security.h>
namespace rfb {
class VncAuthPasswdGetter {
public:
// getVncAuthPasswd() fills buffer of given password and readOnlyPassword.
// If there was no read only password in the file, readOnlyPassword buffer is null.
virtual void getVncAuthPasswd(std::string *password, std::string *readOnlyPassword)=0;
virtual ~VncAuthPasswdGetter() { }
};
class VncAuthPasswdParameter : public VncAuthPasswdGetter, BinaryParameter {
public:
VncAuthPasswdParameter(const char* name, const char* desc, StringParameter* passwdFile_);
virtual void getVncAuthPasswd(std::string *password, std::string *readOnlyPassword);
protected:
StringParameter* passwdFile;
};
class SSecurityVncAuth : public SSecurity {
public:
SSecurityVncAuth(SConnection* sc);
virtual bool processMsg();
virtual int getType() const {return secTypeVncAuth;}
virtual const char* getUserName() const {return nullptr;}
virtual AccessRights getAccessRights() const { return accessRights; }
static StringParameter vncAuthPasswdFile;
static VncAuthPasswdParameter vncAuthPasswd;
private:
bool verifyResponse(const char* password);
enum {vncAuthChallengeSize = 16};
uint8_t challenge[vncAuthChallengeSize];
uint8_t response[vncAuthChallengeSize];
bool sentChallenge;
VncAuthPasswdGetter* pg;
AccessRights accessRights;
};
}
#endif
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