From f76c82403888bb498973ec974dbfd20e4edb02fe Mon Sep 17 00:00:00 2001 From: Mike Gabriel Date: Fri, 30 Jun 2017 20:13:51 +0200 Subject: nxcomp: Switch to autoreconf. --- nxcomp/src/SetUnpackAlpha.cpp | 266 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 266 insertions(+) create mode 100644 nxcomp/src/SetUnpackAlpha.cpp (limited to 'nxcomp/src/SetUnpackAlpha.cpp') diff --git a/nxcomp/src/SetUnpackAlpha.cpp b/nxcomp/src/SetUnpackAlpha.cpp new file mode 100644 index 000000000..5a352d26a --- /dev/null +++ b/nxcomp/src/SetUnpackAlpha.cpp @@ -0,0 +1,266 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ +/* Copyright (c) 2008-2014 Oleksandr Shneyder */ +/* Copyright (c) 2014-2016 Ulrich Sibiller */ +/* Copyright (c) 2014-2016 Mihai Moldovan */ +/* Copyright (c) 2011-2016 Mike Gabriel */ +/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ +/* */ +/* NXCOMP, NX protocol compression and NX extensions to this software */ +/* are copyright of the aforementioned persons and companies. */ +/* */ +/* Redistribution and use of the present software is allowed according */ +/* to terms specified in the file LICENSE.nxcomp which comes in the */ +/* source distribution. */ +/* */ +/* All rights reserved. */ +/* */ +/* NOTE: This software has received contributions from various other */ +/* contributors, only the core maintainers and supporters are listed as */ +/* copyright holders. Please contact us, if you feel you should be listed */ +/* as copyright holder, as well. */ +/* */ +/**************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "SetUnpackAlpha.h" + +#include "ClientCache.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. +// + +SetUnpackAlphaStore::SetUnpackAlphaStore(StaticCompressor *compressor) + + : MessageStore(compressor) +{ + enableCache = SETUNPACKALPHA_ENABLE_CACHE; + enableData = SETUNPACKALPHA_ENABLE_DATA; + enableCompress = SETUNPACKALPHA_ENABLE_COMPRESS_IF_PROTO_STEP_7; + + dataLimit = SETUNPACKALPHA_DATA_LIMIT; + dataOffset = SETUNPACKALPHA_DATA_OFFSET_IF_PROTO_STEP_7; + + cacheSlots = SETUNPACKALPHA_CACHE_SLOTS; + cacheThreshold = SETUNPACKALPHA_CACHE_THRESHOLD; + cacheLowerThreshold = SETUNPACKALPHA_CACHE_LOWER_THRESHOLD; + + // Since ProtoStep8 (#issue 108) + enableSplit = SETUNPACKALPHA_ENABLE_SPLIT_IF_PROTO_STEP_8; + + messages_ -> resize(cacheSlots); + + for (T_messages::iterator i = messages_ -> begin(); + i < messages_ -> end(); i++) + { + *i = NULL; + } + + temporary_ = NULL; +} + +SetUnpackAlphaStore::~SetUnpackAlphaStore() +{ + for (T_messages::iterator i = messages_ -> begin(); + i < messages_ -> end(); i++) + { + destroy(*i); + } + + destroy(temporary_); +} + +// +// Here are the methods to handle messages' content. +// + +int SetUnpackAlphaStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer, + const unsigned int size, int bigEndian, + ChannelCache *channelCache) const +{ + ClientCache *clientCache = (ClientCache *) channelCache; + + #ifdef DEBUG + *logofs << name() << ": Encoding full message identity.\n" << logofs_flush; + #endif + + // + // Encode the source length first because + // we need it to determine the size of + // the output buffer. + // + + // SrcLength. + encodeBuffer.encodeValue(GetULONG(buffer + 8, bigEndian), 32, 9); + + // Client. + encodeBuffer.encodeCachedValue(*(buffer + 1), 8, + clientCache -> resourceCache); + // Method. + encodeBuffer.encodeCachedValue(*(buffer + 4), 8, + clientCache -> methodCache); + // DstLength. + encodeBuffer.encodeValue(GetULONG(buffer + 12, bigEndian), 32, 9); + + #ifdef DEBUG + *logofs << name() << ": Encoded full message identity.\n" << logofs_flush; + #endif + + return 1; +} + +int SetUnpackAlphaStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer, + unsigned int &size, int bigEndian, WriteBuffer *writeBuffer, + ChannelCache *channelCache) const +{ + ClientCache *clientCache = (ClientCache *) channelCache; + + #ifdef DEBUG + *logofs << name() << ": Decoding full message identity.\n" << logofs_flush; + #endif + + unsigned int value; + unsigned char cValue; + + // SrcLength. + decodeBuffer.decodeValue(value, 32, 9); + + size = RoundUp4(value) + 16; + + buffer = writeBuffer -> addMessage(size); + + PutULONG(value, buffer + 8, bigEndian); + + // Client. + decodeBuffer.decodeCachedValue(cValue, 8, + clientCache -> resourceCache); + + *(buffer + 1) = cValue; + + // Method. + decodeBuffer.decodeCachedValue(cValue, 8, + clientCache -> methodCache); + + *(buffer + 4) = cValue; + + // DstLength. + decodeBuffer.decodeValue(value, 32, 9); + + PutULONG(value, buffer + 12, bigEndian); + + #ifdef DEBUG + *logofs << name() << ": Decoded full message identity.\n" << logofs_flush; + #endif + + return 1; +} + +int SetUnpackAlphaStore::parseIdentity(Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + SetUnpackAlphaMessage *setUnpackAlpha = (SetUnpackAlphaMessage *) message; + + setUnpackAlpha -> client = *(buffer + 1); + setUnpackAlpha -> method = *(buffer + 4); + + setUnpackAlpha -> src_length = GetULONG(buffer + 8, bigEndian); + setUnpackAlpha -> dst_length = GetULONG(buffer + 12, bigEndian); + + #ifdef DEBUG + *logofs << name() << ": Parsed identity for message at " << message << ".\n" << logofs_flush; + #endif + + return 1; +} + +int SetUnpackAlphaStore::unparseIdentity(const Message *message, unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + SetUnpackAlphaMessage *setUnpackAlpha = (SetUnpackAlphaMessage *) message; + + *(buffer + 1) = setUnpackAlpha -> client; + *(buffer + 4) = setUnpackAlpha -> method; + + PutULONG(setUnpackAlpha -> src_length, buffer + 8, bigEndian); + PutULONG(setUnpackAlpha -> dst_length, buffer + 12, bigEndian); + + #ifdef DEBUG + *logofs << name() << ": Unparsed identity for message at " << message << ".\n" << logofs_flush; + #endif + + return 1; +} + +void SetUnpackAlphaStore::dumpIdentity(const Message *message) const +{ + #ifdef DUMP + + SetUnpackAlphaMessage *setUnpackAlpha = (SetUnpackAlphaMessage *) message; + + *logofs << name() << ": Identity client " + << (unsigned int) setUnpackAlpha -> client << " method " + << (unsigned int) setUnpackAlpha -> method << " source length " + << setUnpackAlpha -> src_length << " destination length " + << setUnpackAlpha -> dst_length << " size " + << setUnpackAlpha -> size_ << ".\n"; + + #endif +} + +void SetUnpackAlphaStore::identityChecksum(const Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + // + // Include the pack method and the source + // and destination length. + // + + md5_append(md5_state_, buffer + 4, 1); + md5_append(md5_state_, buffer + 8, 8); +} + +void SetUnpackAlphaStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message, + const Message *cachedMessage, + ChannelCache *channelCache) const +{ + SetUnpackAlphaMessage *setUnpackAlpha = (SetUnpackAlphaMessage *) message; + SetUnpackAlphaMessage *cachedSetUnpackAlpha = (SetUnpackAlphaMessage *) cachedMessage; + + ClientCache *clientCache = (ClientCache *) channelCache; + + encodeBuffer.encodeCachedValue(setUnpackAlpha -> client, 8, + clientCache -> resourceCache); + + cachedSetUnpackAlpha -> client = setUnpackAlpha -> client; +} + +void SetUnpackAlphaStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message, + ChannelCache *channelCache) const +{ + SetUnpackAlphaMessage *setUnpackAlpha = (SetUnpackAlphaMessage *) message; + + ClientCache *clientCache = (ClientCache *) channelCache; + + decodeBuffer.decodeCachedValue(setUnpackAlpha -> client, 8, + clientCache -> resourceCache); +} -- cgit v1.2.3