/**************************************************************************/ /* */ /* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ /* Copyright (c) 2008-2017 Oleksandr Shneyder */ /* Copyright (c) 2014-2022 Ulrich Sibiller */ /* Copyright (c) 2014-2019 Mihai Moldovan */ /* Copyright (c) 2011-2022 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 "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 }