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-rw-r--r--nxcomp/GenericReply.cpp293
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diff --git a/nxcomp/GenericReply.cpp b/nxcomp/GenericReply.cpp
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+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2010 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 "GenericReply.h"
+
+#include "ServerCache.h"
+
+#include "EncodeBuffer.h"
+#include "DecodeBuffer.h"
+
+#include "WriteBuffer.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef TEST
+#undef DEBUG
+#undef DUMP
+
+//
+// Constructors and destructors.
+//
+
+GenericReplyStore::GenericReplyStore(StaticCompressor *compressor)
+
+ : MessageStore(compressor)
+{
+ enableCache = GENERICREPLY_ENABLE_CACHE;
+ enableData = GENERICREPLY_ENABLE_DATA;
+ enableSplit = GENERICREPLY_ENABLE_SPLIT;
+ enableCompress = GENERICREPLY_ENABLE_COMPRESS;
+
+ if (control -> isProtoStep7() == 1)
+ {
+ enableCompress = GENERICREPLY_ENABLE_COMPRESS_IF_PROTO_STEP_7;
+ }
+
+ dataLimit = GENERICREPLY_DATA_LIMIT;
+ dataOffset = GENERICREPLY_DATA_OFFSET;
+
+ cacheSlots = GENERICREPLY_CACHE_SLOTS;
+ cacheThreshold = GENERICREPLY_CACHE_THRESHOLD;
+ cacheLowerThreshold = GENERICREPLY_CACHE_LOWER_THRESHOLD;
+
+ messages_ -> resize(cacheSlots);
+
+ for (T_messages::iterator i = messages_ -> begin();
+ i < messages_ -> end(); i++)
+ {
+ *i = NULL;
+ }
+
+ temporary_ = NULL;
+}
+
+GenericReplyStore::~GenericReplyStore()
+{
+ for (T_messages::iterator i = messages_ -> begin();
+ i < messages_ -> end(); i++)
+ {
+ destroy(*i);
+ }
+
+ destroy(temporary_);
+}
+
+//
+// Here are the methods to handle messages' content.
+//
+
+int GenericReplyStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer,
+ const unsigned int size, int bigEndian,
+ ChannelCache *channelCache) const
+{
+ ServerCache *serverCache = (ServerCache *) channelCache;
+
+ #ifdef DEBUG
+ *logofs << name() << ": Encoding full message identity.\n"
+ << logofs_flush;
+ #endif
+
+ encodeBuffer.encodeValue(GetULONG(buffer + 4, bigEndian), 32, 15);
+
+ encodeBuffer.encodeCachedValue(*(buffer + 1), 8,
+ serverCache -> genericReplyCharCache);
+
+ for (unsigned int i = 0; i < 6; i++)
+ {
+ encodeBuffer.encodeCachedValue(GetULONG(buffer + i * 4 + 8, bigEndian), 32,
+ *serverCache -> genericReplyIntCache[i]);
+ }
+
+ #ifdef DEBUG
+ *logofs << name() << ": Encoded full message identity.\n"
+ << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int GenericReplyStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer,
+ unsigned int &size, int bigEndian, WriteBuffer *writeBuffer,
+ ChannelCache *channelCache) const
+{
+ ServerCache *serverCache = (ServerCache *) channelCache;
+
+ #ifdef DEBUG
+ *logofs << name() << ": Decoding full message identity.\n"
+ << logofs_flush;
+ #endif
+
+ decodeBuffer.decodeValue(size, 32, 15);
+
+ size = 32 + (size << 2);
+
+ buffer = writeBuffer -> addMessage(size);
+
+ decodeBuffer.decodeCachedValue(*(buffer + 1), 8,
+ serverCache -> genericReplyCharCache);
+
+ unsigned int value;
+
+ for (unsigned int i = 0; i < 6; i++)
+ {
+ decodeBuffer.decodeCachedValue(value, 32,
+ *serverCache -> genericReplyIntCache[i]);
+
+ PutULONG(value, buffer + i * 4 + 8, bigEndian);
+ }
+
+ #ifdef DEBUG
+ *logofs << name() << ": Decoded full message identity.\n"
+ << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int GenericReplyStore::parseIdentity(Message *message, const unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+ GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+
+ genericReply -> byte_data = *(buffer + 1);
+
+ for (int i = 0; i < 12; i++)
+ {
+ genericReply -> short_data[i] = GetUINT(buffer + i * 2 + 8, bigEndian);
+ }
+
+ #ifdef DEBUG
+ *logofs << name() << ": Parsed identity for message at "
+ << message << ".\n" << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int GenericReplyStore::unparseIdentity(const Message *message, unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+ GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+
+ *(buffer + 1) = genericReply -> byte_data;
+
+ for (int i = 0; i < 12; i++)
+ {
+ PutUINT(genericReply -> short_data[i], buffer + i * 2 + 8, bigEndian);
+ }
+
+ #ifdef DEBUG
+ *logofs << name() << ": Unparsed identity for message at "
+ << message << ".\n" << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+void GenericReplyStore::dumpIdentity(const Message *message) const
+{
+ #ifdef DUMP
+
+ GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+
+ *logofs << name() << ": Identity byte_data "
+ << (unsigned) genericReply -> byte_data;
+
+ for (int i = 0; i < 12; i++)
+ {
+ *logofs << ", short_data[" << i << "]"
+ << (unsigned) genericReply -> short_data[i];
+ }
+
+ *logofs << ", size " << genericReply -> size_ << ".\n";
+
+ #endif
+}
+
+void GenericReplyStore::identityChecksum(const Message *message, const unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+}
+
+void GenericReplyStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+ const Message *cachedMessage,
+ ChannelCache *channelCache) const
+{
+ //
+ // Encode the variant part.
+ //
+
+ GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+ GenericReplyMessage *cachedGenericReply = (GenericReplyMessage *) cachedMessage;
+
+ ServerCache *serverCache = (ServerCache *) channelCache;
+
+ #ifdef TEST
+ *logofs << name() << ": Encoding value "
+ << (unsigned int) genericReply -> byte_data
+ << " as byte_data field.\n" << logofs_flush;
+ #endif
+
+ encodeBuffer.encodeCachedValue(genericReply -> byte_data, 8,
+ serverCache -> genericReplyCharCache);
+
+ cachedGenericReply -> byte_data = genericReply -> byte_data;
+
+ for (unsigned int i = 0; i < 12; i++)
+ {
+ #ifdef TEST
+ *logofs << name() << ": Encoding value " << genericReply -> short_data[i]
+ << " as short_data[" << i << "] field.\n" << logofs_flush;
+ #endif
+
+ encodeBuffer.encodeCachedValue(genericReply -> short_data[i], 16,
+ *serverCache -> genericReplyIntCache[i]);
+
+ cachedGenericReply -> short_data[i] = genericReply -> short_data[i];
+ }
+}
+
+void GenericReplyStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+ ChannelCache *channelCache) const
+{
+ //
+ // Decode the variant part.
+ //
+
+ GenericReplyMessage *genericReply = (GenericReplyMessage *) message;
+
+ ServerCache *serverCache = (ServerCache *) channelCache;
+
+ decodeBuffer.decodeCachedValue(genericReply -> byte_data, 8,
+ serverCache -> genericReplyCharCache);
+
+ #ifdef TEST
+ *logofs << name() << ": Decoded value "
+ << (unsigned int) genericReply -> byte_data
+ << " as byte_data field.\n" << logofs_flush;
+ #endif
+
+ unsigned int value;
+
+ for (unsigned int i = 0; i < 12; i++)
+ {
+ decodeBuffer.decodeCachedValue(value, 16,
+ *serverCache -> genericReplyIntCache[i]);
+
+ genericReply -> short_data[i] = (unsigned short) value;
+
+ #ifdef TEST
+ *logofs << name() << ": Decoded value " << genericReply -> short_data[i]
+ << " as short_data[" << i << "] field.\n" << logofs_flush;
+ #endif
+ }
+}
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