/**************************************************************************/ /* */ /* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ /* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ /* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ /* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ /* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/ /* 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 "GetPropertyReply.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. // GetPropertyReplyStore::GetPropertyReplyStore(StaticCompressor *compressor) : MessageStore(compressor) { enableCache = GETPROPERTYREPLY_ENABLE_CACHE; enableData = GETPROPERTYREPLY_ENABLE_DATA; enableSplit = GETPROPERTYREPLY_ENABLE_SPLIT; // Since ProtoStep7 (#issue 108) enableCompress = GETPROPERTYREPLY_ENABLE_COMPRESS_IF_PROTO_STEP_7; dataLimit = GETPROPERTYREPLY_DATA_LIMIT; dataOffset = GETPROPERTYREPLY_DATA_OFFSET; cacheSlots = GETPROPERTYREPLY_CACHE_SLOTS; cacheThreshold = GETPROPERTYREPLY_CACHE_THRESHOLD; cacheLowerThreshold = GETPROPERTYREPLY_CACHE_LOWER_THRESHOLD; messages_ -> resize(cacheSlots); for (T_messages::iterator i = messages_ -> begin(); i < messages_ -> end(); i++) { *i = NULL; } temporary_ = NULL; } GetPropertyReplyStore::~GetPropertyReplyStore() { for (T_messages::iterator i = messages_ -> begin(); i < messages_ -> end(); i++) { destroy(*i); } destroy(temporary_); } // // Here are the methods to handle messages' content. // int GetPropertyReplyStore::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 unsigned char format = (unsigned int) *(buffer + 1); encodeBuffer.encodeCachedValue(format, 8, serverCache -> getPropertyFormatCache); unsigned int numBytes = GetULONG(buffer + 16, bigEndian); encodeBuffer.encodeValue(numBytes, 32, 9); if (format == 16) { numBytes <<= 1; } else if (format == 32) { numBytes <<= 2; } encodeBuffer.encodeCachedValue(GetULONG(buffer + 8, bigEndian), 29, serverCache -> getPropertyTypeCache, 9); encodeBuffer.encodeValue(GetULONG(buffer + 12, bigEndian), 32, 9); #ifdef DEBUG *logofs << name() << ": Encoded full message identity.\n" << logofs_flush; #endif return 1; } int GetPropertyReplyStore::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 unsigned char format; decodeBuffer.decodeCachedValue(format, 8, serverCache -> getPropertyFormatCache); unsigned int length; decodeBuffer.decodeValue(length, 32, 9); unsigned int numBytes = length; if (format == 16) { numBytes <<= 1; } else if (format == 32) { numBytes <<= 2; } size = 32 + RoundUp4(numBytes); buffer = writeBuffer -> addMessage(size); *(buffer + 1) = format; PutULONG(length, buffer + 16, bigEndian); unsigned int value; decodeBuffer.decodeCachedValue(value, 29, serverCache -> getPropertyTypeCache, 9); PutULONG(value, buffer + 8, bigEndian); 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 GetPropertyReplyStore::parseIdentity(Message *message, const unsigned char *buffer, unsigned int size, int bigEndian) const { GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message; getPropertyReply -> format = *(buffer + 1); getPropertyReply -> type = GetULONG(buffer + 8, bigEndian); getPropertyReply -> after = GetULONG(buffer + 12, bigEndian); getPropertyReply -> items = GetULONG(buffer + 16, bigEndian); // // Cleanup the padding bytes. // unsigned int uiLengthInBytes; unsigned int uiFormat; if ((int) size > GETPROPERTYREPLY_DATA_OFFSET) { uiLengthInBytes = getPropertyReply -> items; uiFormat = *(buffer + 1); #ifdef DEBUG *logofs << name() << ": length " << uiLengthInBytes << ", format " << uiFormat << ", size " << size << ".\n" << logofs_flush; #endif if (uiFormat == 16) { uiLengthInBytes <<= 1; } else if (uiFormat == 32) { uiLengthInBytes <<= 2; } unsigned char *end = ((unsigned char *) buffer) + size; unsigned char *pad = ((unsigned char *) buffer) + GETPROPERTYREPLY_DATA_OFFSET + uiLengthInBytes; CleanData((unsigned char *) pad, end - pad); } #ifdef DEBUG *logofs << name() << ": Parsed identity for message at " << message << ".\n" << logofs_flush; #endif return 1; } int GetPropertyReplyStore::unparseIdentity(const Message *message, unsigned char *buffer, unsigned int size, int bigEndian) const { GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message; *(buffer + 1) = getPropertyReply -> format; PutULONG(getPropertyReply -> type, buffer + 8, bigEndian); PutULONG(getPropertyReply -> after, buffer + 12, bigEndian); PutULONG(getPropertyReply -> items, buffer + 16, bigEndian); #ifdef DEBUG *logofs << name() << ": Unparsed identity for message at " << message << ".\n" << logofs_flush; #endif return 1; } void GetPropertyReplyStore::dumpIdentity(const Message *message) const { #ifdef DUMP GetPropertyReplyMessage *getPropertyReply = (GetPropertyReplyMessage *) message; *logofs << name() << ": Identity format " << (unsigned) getPropertyReply -> format << ", type " << getPropertyReply -> type << ", after " << getPropertyReply -> after << ", items " << getPropertyReply -> items << ", size " << getPropertyReply -> size_ << ".\n"; #endif } void GetPropertyReplyStore::identityChecksum(const Message *message, const unsigned char *buffer, unsigned int size, int bigEndian) const { // // Fields format, type, after, items. // md5_append(md5_state_, buffer + 1, 1); md5_append(md5_state_, buffer + 8, 12); } void GetPropertyReplyStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message, const Message *cachedMessage, ChannelCache *channelCache) const { } void GetPropertyReplyStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message, ChannelCache *channelCache) const { }