116 lines
3.3 KiB
C++
116 lines
3.3 KiB
C++
/* -*- C++ -*- */
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/*
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* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __ENCRYPTOPTION_H__
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#define __ENCRYPTOPTION_H__
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#include "CharStream.h"
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#include "Option.h"
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#include "TelnetEngine.h"
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#include "EmulatorEngine.h"
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//#include "Negotiator.h"
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//#include "KClient.h"
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class CryptoEngine;
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enum
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{
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ENCRYPT_OPT = 38,
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// ExecOption Commands
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ENCRYPT_ON = 1,
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ENCRYPT_OFF = 2
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};
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class EncryptOption : public Option{
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public:
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EncryptOption(CharStream *stream, TelnetEngine *);
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~EncryptOption();
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void NegotiateOption(unsigned char);
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BOOL InEffect() { return pTEngine->mDecrypt && pTEngine->mEncrypt; }
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void ExecOption(unsigned int Command, void* Data = NULL);
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private:
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void sendIS_NULL(void);
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void recievedSUPPORT ();
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void recievedREPLY ();
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void recievedIS();
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void recievedREQSTART ();
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void recievedREQEND ();
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void recievedDEC_KEYID ();
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void recievedENC_KEYID ();
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void recievedSTART();
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void recievedEND();
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void sendSUPPORT ();
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void sendREPLY (int answer);
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void sendIS();
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void sendREQSTART ();
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void sendREQEND ();
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void sendDEC_KEYID (int answer);
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void sendENC_KEYID ();
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void sendSTART();
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void sendEND();
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void sendEncrypt(int option); // DO, DONT, WILL, WONT
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BOOL mReadyToEncrypt;
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int mDecKeyId;
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CryptoEngine* pCryptoEngine;
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unsigned char mDecIV[8];
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unsigned char mEncIV[8];
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int mIVCount;
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// Encryption options
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enum{
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REQUEST_START = 5,
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REQUEST_END = 6,
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ENC_KEYID = 7,
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DEC_KEYID = 8,
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DEF_KEYID = 0, // Default
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DES_CFB64 = 1,
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DES_OFB64 = 2,
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// CFB64 Suboption Commands
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CFB64_IV = 1,
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CFB64_IV_OK = 2,
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CFB64_IV_BAD = 3,
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CFB64_CHALLENGE = 4,
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CFB64_RESPONSE = 5
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};
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};
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#endif /* __ENCRYPTOPTION_H__ */
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