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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2009 NoMachine, http://www.nomachine.com/. */
/* */
/* NXCOMP, NX protocol compression and NX extensions to this software */
/* are copyright of NoMachine. Redistribution and use of the present */
/* software is allowed according to terms specified in the file LICENSE */
/* which comes in the source distribution. */
/* */
/* Check http://www.nomachine.com/licensing.html for applicability. */
/* */
/* NX and NoMachine are trademarks of Medialogic S.p.A. */
/* */
/* All rights reserved. */
/* */
/**************************************************************************/
#include "SendEvent.h"
#include "ClientCache.h"
#include "EncodeBuffer.h"
#include "DecodeBuffer.h"
#include "IntCache.h"
//
// Set the verbosity level.
//
#define PANIC
#define WARNING
#undef TEST
#undef DEBUG
#undef DUMP
//
// Here are the methods to handle messages' content.
//
int SendEventStore::parseIdentity(Message *message, const unsigned char *buffer,
unsigned int size, int bigEndian) const
{
SendEventMessage *sendEvent = (SendEventMessage *) message;
//
// Here is the fingerprint.
//
sendEvent -> propagate = *(buffer + 1);
sendEvent -> window = GetULONG(buffer + 4, bigEndian);
sendEvent -> mask = GetULONG(buffer + 8, bigEndian);
sendEvent -> code = *(buffer + 12);
sendEvent -> byte_data = *(buffer + 13);
sendEvent -> sequence = GetUINT(buffer + 14, bigEndian);
sendEvent -> int_data = GetULONG(buffer + 16, bigEndian);
#ifdef DEBUG
*logofs << name() << ": Parsed Identity for message at "
<< this << ".\n" << logofs_flush;
#endif
return 1;
}
int SendEventStore::unparseIdentity(const Message *message, unsigned char *buffer,
unsigned int size, int bigEndian) const
{
SendEventMessage *sendEvent = (SendEventMessage *) message;
//
// Fill all the message's fields.
//
*(buffer + 1) = sendEvent -> propagate;
PutULONG(sendEvent -> window, buffer + 4, bigEndian);
PutULONG(sendEvent -> mask, buffer + 8, bigEndian);
*(buffer + 12) = sendEvent -> code;
*(buffer + 13) = sendEvent -> byte_data;
PutUINT(sendEvent -> sequence, buffer + 14, bigEndian);
PutULONG(sendEvent -> int_data, buffer + 16, bigEndian);
#ifdef DEBUG
*logofs << name() << ": Unparsed identity for message at "
<< this << ".\n" << logofs_flush;
#endif
return 1;
}
void SendEventStore::dumpIdentity(const Message *message) const
{
#ifdef DUMP
SendEventMessage *sendEvent = (SendEventMessage *) message;
*logofs << name() << ": Identity propagate " << (unsigned int) sendEvent -> propagate
<< ", window " << sendEvent -> window << ", mask " << sendEvent -> mask
<< ", code " << (unsigned int) sendEvent -> code << ", byte_data "
<< (unsigned int) sendEvent -> byte_data << ", sequence "
<< sendEvent -> sequence << ", int_data " << sendEvent -> int_data
<< ", size " << sendEvent -> size_ << ".\n" << logofs_flush;
#endif
}
void SendEventStore::identityChecksum(const Message *message, const unsigned char *buffer,
unsigned int size, int bigEndian) const
{
}
void SendEventStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
const Message *cachedMessage,
ChannelCache *channelCache) const
{
SendEventMessage *sendEvent = (SendEventMessage *) message;
SendEventMessage *cachedSendEvent = (SendEventMessage *) cachedMessage;
ClientCache *clientCache = (ClientCache *) channelCache;
#ifdef TEST
*logofs << name() << ": Encoding value " << (unsigned int) sendEvent -> propagate
<< " as propagate field.\n" << logofs_flush;
#endif
encodeBuffer.encodeBoolValue(sendEvent -> propagate);
cachedSendEvent -> propagate = sendEvent -> propagate;
#ifdef TEST
*logofs << name() << ": Encoding value " << sendEvent -> window
<< " as window field.\n" << logofs_flush;
#endif
if (sendEvent -> window == 0 || sendEvent -> window == 1)
{
encodeBuffer.encodeBoolValue(1);
encodeBuffer.encodeBoolValue(sendEvent -> window);
}
else
{
encodeBuffer.encodeBoolValue(0);
encodeBuffer.encodeXidValue(sendEvent -> window, clientCache -> windowCache);
}
cachedSendEvent -> window = sendEvent -> window;
#ifdef TEST
*logofs << name() << ": Encoding value " << sendEvent -> mask
<< " as mask field.\n" << logofs_flush;
#endif
encodeBuffer.encodeCachedValue(sendEvent -> mask, 32,
clientCache -> sendEventMaskCache);
cachedSendEvent -> mask = sendEvent -> mask;
#ifdef TEST
*logofs << name() << ": Encoding value " << sendEvent -> code
<< " as code field.\n" << logofs_flush;
#endif
encodeBuffer.encodeCachedValue(sendEvent -> code, 8,
clientCache -> sendEventCodeCache);
cachedSendEvent -> code = sendEvent -> code;
#ifdef TEST
*logofs << name() << ": Encoding value " << sendEvent -> byte_data
<< " as byte_data field.\n" << logofs_flush;
#endif
encodeBuffer.encodeCachedValue(sendEvent -> byte_data, 8,
clientCache -> sendEventByteDataCache);
cachedSendEvent -> byte_data = sendEvent -> byte_data;
#ifdef TEST
*logofs << name() << ": Encoding value " << sendEvent -> sequence
<< " as sequence field.\n" << logofs_flush;
#endif
unsigned int diffSeq = sendEvent -> sequence -
clientCache -> sendEventLastSequence;
clientCache -> sendEventLastSequence = sendEvent -> sequence;
encodeBuffer.encodeValue(diffSeq, 16, 4);
cachedSendEvent -> sequence = sendEvent -> sequence;
#ifdef TEST
*logofs << name() << ": Encoding value " << sendEvent -> int_data
<< " as int_data field.\n" << logofs_flush;
#endif
encodeBuffer.encodeCachedValue(sendEvent -> int_data, 32,
clientCache -> sendEventIntDataCache);
cachedSendEvent -> int_data = sendEvent -> int_data;
}
void SendEventStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
ChannelCache *channelCache) const
{
SendEventMessage *sendEvent = (SendEventMessage *) message;
ClientCache *clientCache = (ClientCache *) channelCache;
unsigned int value;
decodeBuffer.decodeBoolValue(value);
sendEvent -> propagate = value;
#ifdef DEBUG
*logofs << name() << ": Decoded value " << (unsigned int) sendEvent -> propagate
<< " as propagate field.\n" << logofs_flush;
#endif
decodeBuffer.decodeBoolValue(value);
if (value)
{
decodeBuffer.decodeBoolValue(value);
}
else
{
decodeBuffer.decodeXidValue(value, clientCache -> windowCache);
}
sendEvent -> window = value;
#ifdef DEBUG
*logofs << name() << ": Decoded value " << sendEvent -> window
<< " as window field.\n" << logofs_flush;
#endif
decodeBuffer.decodeCachedValue(sendEvent -> mask, 32,
clientCache -> sendEventMaskCache);
#ifdef DEBUG
*logofs << name() << ": Decoded value " << sendEvent -> mask
<< " as mask field.\n" << logofs_flush;
#endif
decodeBuffer.decodeCachedValue(sendEvent -> code, 8,
clientCache -> sendEventCodeCache);
#ifdef DEBUG
*logofs << name() << ": Decoded value " << sendEvent -> code
<< " as code field.\n" << logofs_flush;
#endif
decodeBuffer.decodeCachedValue(sendEvent -> byte_data, 8,
clientCache -> sendEventByteDataCache);
#ifdef DEBUG
*logofs << name() << ": Decoded value " << sendEvent -> byte_data
<< " as byte_data field.\n" << logofs_flush;
#endif
decodeBuffer.decodeValue(value, 16, 4);
clientCache -> sendEventLastSequence += value;
clientCache -> sendEventLastSequence &= 0xffff;
sendEvent -> sequence = clientCache -> sendEventLastSequence;
#ifdef DEBUG
*logofs << name() << ": Decoded value " << sendEvent -> sequence
<< " as sequence field.\n" << logofs_flush;
#endif
decodeBuffer.decodeCachedValue(sendEvent -> int_data, 32,
clientCache -> sendEventIntDataCache);
#ifdef DEBUG
*logofs << name() << ": Decoded value " << sendEvent -> int_data
<< " as int_data field.\n" << logofs_flush;
#endif
}
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