/** * @file message.cpp * @brief LLMessageSystem class implementation * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ #include "linden_common.h" #include "message.h" // system library includes #if !LL_WINDOWS // following header files required for inet_addr() #include #include #include #include #endif #include #include #include #include "llapr.h" #include "apr_portable.h" #include "apr_network_io.h" #include "apr_poll.h" // linden library headers #include "indra_constants.h" #include "lldir.h" #include "llerror.h" #include "llfasttimer.h" #include "llhttpclient.h" #include "llhttpnodeadapter.h" #include "llhttpsender.h" #include "llmd5.h" #include "llmessagebuilder.h" #include "llmessageconfig.h" #include "lltemplatemessagedispatcher.h" #include "llpumpio.h" #include "lltemplatemessagebuilder.h" #include "lltemplatemessagereader.h" #include "lltrustedmessageservice.h" #include "llmessagetemplate.h" #include "llmessagetemplateparser.h" #include "llsd.h" #include "llsdmessagebuilder.h" #include "llsdmessagereader.h" #include "llsdserialize.h" #include "llstring.h" #include "lltransfermanager.h" #include "lluuid.h" #include "llxfermanager.h" #include "llquaternion.h" #include "u64.h" #include "v3dmath.h" #include "v3math.h" #include "v4math.h" #include "lltransfertargetvfile.h" // Constants //const char* MESSAGE_LOG_FILENAME = "message.log"; static const F32 CIRCUIT_DUMP_TIMEOUT = 30.f; static const S32 TRUST_TIME_WINDOW = 3; // *NOTE: This needs to be moved into a seperate file so that it never gets // included in the viewer. 30 Sep 2002 mark // *NOTE: I don't think it's important that the messgage system tracks // this since it must get set externally. 2004.08.25 Phoenix. static std::string g_shared_secret; std::string get_shared_secret(); class LLMessagePollInfo { public: apr_socket_t *mAPRSocketp; apr_pollfd_t mPollFD; }; namespace { class LLFnPtrResponder : public LLHTTPClient::Responder { LOG_CLASS(LLFnPtrResponder); public: LLFnPtrResponder(void (*callback)(void **,S32), void **callbackData, const std::string& name) : mCallback(callback), mCallbackData(callbackData), mMessageName(name) { } virtual void error(U32 status, const std::string& reason) { // don't spam when agent communication disconnected already if (status != 410) { LL_WARNS("Messaging") << "error status " << status << " for message " << mMessageName << " reason " << reason << LL_ENDL; } // TODO: Map status in to useful error code. if(NULL != mCallback) mCallback(mCallbackData, LL_ERR_TCP_TIMEOUT); } virtual void result(const LLSD& content) { if(NULL != mCallback) mCallback(mCallbackData, LL_ERR_NOERR); } private: void (*mCallback)(void **,S32); void **mCallbackData; std::string mMessageName; }; } class LLMessageHandlerBridge : public LLHTTPNode { virtual bool validate(const std::string& name, LLSD& context) const { return true; } virtual void post(LLHTTPNode::ResponsePtr response, const LLSD& context, const LLSD& input) const; }; //virtual void LLMessageHandlerBridge::post(LLHTTPNode::ResponsePtr response, const LLSD& context, const LLSD& input) const { std::string name = context["request"]["wildcard"]["message-name"]; char* namePtr = LLMessageStringTable::getInstance()->getString(name.c_str()); LL_DEBUGS() << "Setting mLastSender " << input["sender"].asString() << LL_ENDL; gMessageSystem->mLastSender = LLHost(input["sender"].asString()); gMessageSystem->mPacketsIn += 1; gMessageSystem->mLLSDMessageReader->setMessage(namePtr, input["body"]); gMessageSystem->mMessageReader = gMessageSystem->mLLSDMessageReader; if(gMessageSystem->callHandler(namePtr, false, gMessageSystem)) { response->result(LLSD()); } else { response->notFound(); } } LLHTTPRegistration gHTTPRegistrationMessageWildcard("/message/"); //virtual LLUseCircuitCodeResponder::~LLUseCircuitCodeResponder() { // even abstract base classes need a concrete destructor } static const char* nullToEmpty(const char* s) { static char emptyString[] = ""; return s? s : emptyString; } void LLMessageSystem::init() { // initialize member variables mVerboseLog = FALSE; mbError = FALSE; mErrorCode = 0; mSendReliable = FALSE; mUnackedListDepth = 0; mUnackedListSize = 0; mDSMaxListDepth = 0; mNumberHighFreqMessages = 0; mNumberMediumFreqMessages = 0; mNumberLowFreqMessages = 0; mPacketsIn = mPacketsOut = 0; mBytesIn = mBytesOut = 0; mCompressedPacketsIn = mCompressedPacketsOut = 0; mReliablePacketsIn = mReliablePacketsOut = 0; mCompressedBytesIn = 0; mCompressedBytesOut = 0; mUncompressedBytesIn = 0; mUncompressedBytesOut = 0; mTotalBytesIn = 0; mTotalBytesOut = 0; mDroppedPackets = 0; // total dropped packets in mResentPackets = 0; // total resent packets out mFailedResendPackets = 0; // total resend failure packets out mOffCircuitPackets = 0; // total # of off-circuit packets rejected mInvalidOnCircuitPackets = 0; // total # of on-circuit packets rejected mOurCircuitCode = 0; mIncomingCompressedSize = 0; mCurrentRecvPacketID = 0; mMessageFileVersionNumber = 0.f; mTimingCallback = NULL; mTimingCallbackData = NULL; mMessageBuilder = NULL; mMessageReader = NULL; } // Read file and build message templates LLMessageSystem::LLMessageSystem(const std::string& filename, U32 port, S32 version_major, S32 version_minor, S32 version_patch, bool failure_is_fatal, const F32 circuit_heartbeat_interval, const F32 circuit_timeout) : mCircuitInfo(circuit_heartbeat_interval, circuit_timeout), mLastMessageFromTrustedMessageService(false) { init(); mSendSize = 0; mSystemVersionMajor = version_major; mSystemVersionMinor = version_minor; mSystemVersionPatch = version_patch; mSystemVersionServer = 0; mVersionFlags = 0x0; // default to not accepting packets from not alive circuits mbProtected = TRUE; // default to blocking trusted connections on a public interface if one is specified mBlockUntrustedInterface = true; mSendPacketFailureCount = 0; mCircuitPrintFreq = 60.f; // seconds loadTemplateFile(filename, failure_is_fatal); mTemplateMessageBuilder = new LLTemplateMessageBuilder(mMessageTemplates); mLLSDMessageBuilder = new LLSDMessageBuilder(); mMessageBuilder = NULL; mTemplateMessageReader = new LLTemplateMessageReader(mMessageNumbers); mLLSDMessageReader = new LLSDMessageReader(); mMessageReader = NULL; // initialize various bits of net info mSocket = 0; mPort = port; S32 error = start_net(mSocket, mPort); if (error != 0) { mbError = TRUE; mErrorCode = error; } // LL_DEBUGS("Messaging") << << "*** port: " << mPort << LL_ENDL; // // Create the data structure that we can poll on // if (!gAPRPoolp) { LL_ERRS("Messaging") << "No APR pool before message system initialization!" << LL_ENDL; ll_init_apr(); } apr_socket_t *aprSocketp = NULL; apr_os_sock_put(&aprSocketp, (apr_os_sock_t*)&mSocket, gAPRPoolp); mPollInfop = new LLMessagePollInfo; mPollInfop->mAPRSocketp = aprSocketp; mPollInfop->mPollFD.p = gAPRPoolp; mPollInfop->mPollFD.desc_type = APR_POLL_SOCKET; mPollInfop->mPollFD.reqevents = APR_POLLIN; mPollInfop->mPollFD.rtnevents = 0; mPollInfop->mPollFD.desc.s = aprSocketp; mPollInfop->mPollFD.client_data = NULL; F64 mt_sec = getMessageTimeSeconds(); mResendDumpTime = mt_sec; mMessageCountTime = mt_sec; mCircuitPrintTime = mt_sec; mCurrentMessageTimeSeconds = mt_sec; // Constants for dumping output based on message processing time/count mNumMessageCounts = 0; mMaxMessageCounts = 200; // >= 0 means dump warnings mMaxMessageTime = 1.f; mTrueReceiveSize = 0; mReceiveTime = 0.f; } // Read file and build message templates void LLMessageSystem::loadTemplateFile(const std::string& filename, bool failure_is_fatal) { if(filename.empty()) { LL_ERRS("Messaging") << "No template filename specified" << LL_ENDL; mbError = TRUE; return; } std::string template_body; if(!_read_file_into_string(template_body, filename)) { if (failure_is_fatal) { LL_ERRS("Messaging") << "Failed to open template: " << filename << LL_ENDL; } else { LL_WARNS("Messaging") << "Failed to open template: " << filename << LL_ENDL; } mbError = TRUE; return; } LLTemplateTokenizer tokens(template_body); LLTemplateParser parsed(tokens); mMessageFileVersionNumber = parsed.getVersion(); for(LLTemplateParser::message_iterator iter = parsed.getMessagesBegin(); iter != parsed.getMessagesEnd(); iter++) { addTemplate(*iter); } } LLMessageSystem::~LLMessageSystem() { mMessageTemplates.clear(); // don't delete templates. for_each(mMessageNumbers.begin(), mMessageNumbers.end(), DeletePairedPointer()); mMessageNumbers.clear(); if (!mbError) { end_net(mSocket); } mSocket = 0; delete mTemplateMessageReader; mTemplateMessageReader = NULL; mMessageReader = NULL; delete mTemplateMessageBuilder; mTemplateMessageBuilder = NULL; mMessageBuilder = NULL; delete mLLSDMessageReader; mLLSDMessageReader = NULL; delete mLLSDMessageBuilder; mLLSDMessageBuilder = NULL; delete mPollInfop; mPollInfop = NULL; mIncomingCompressedSize = 0; mCurrentRecvPacketID = 0; } void LLMessageSystem::clearReceiveState() { mCurrentRecvPacketID = 0; mIncomingCompressedSize = 0; mLastSender.invalidate(); mLastReceivingIF.invalidate(); mMessageReader->clearMessage(); mLastMessageFromTrustedMessageService = false; } BOOL LLMessageSystem::poll(F32 seconds) { S32 num_socks; apr_status_t status; status = apr_poll(&(mPollInfop->mPollFD), 1, &num_socks,(U64)(seconds*1000000.f)); if (status != APR_TIMEUP) { ll_apr_warn_status(status); } if (num_socks) { return TRUE; } else { return FALSE; } } bool LLMessageSystem::isTrustedSender(const LLHost& host) const { LLCircuitData* cdp = mCircuitInfo.findCircuit(host); if(NULL == cdp) { return false; } return cdp->getTrusted(); } void LLMessageSystem::receivedMessageFromTrustedSender() { mLastMessageFromTrustedMessageService = true; } bool LLMessageSystem::isTrustedSender() const { return mLastMessageFromTrustedMessageService || isTrustedSender(getSender()); } static LLMessageSystem::message_template_name_map_t::const_iterator findTemplate(const LLMessageSystem::message_template_name_map_t& templates, std::string name) { const char* namePrehash = LLMessageStringTable::getInstance()->getString(name.c_str()); if(NULL == namePrehash) {return templates.end();} return templates.find(namePrehash); } bool LLMessageSystem::isTrustedMessage(const std::string& name) const { message_template_name_map_t::const_iterator iter = findTemplate(mMessageTemplates, name); if(iter == mMessageTemplates.end()) {return false;} return iter->second->getTrust() == MT_TRUST; } bool LLMessageSystem::isUntrustedMessage(const std::string& name) const { message_template_name_map_t::const_iterator iter = findTemplate(mMessageTemplates, name); if(iter == mMessageTemplates.end()) {return false;} return iter->second->getTrust() == MT_NOTRUST; } LLCircuitData* LLMessageSystem::findCircuit(const LLHost& host, bool resetPacketId) { LLCircuitData* cdp = mCircuitInfo.findCircuit(host); if (!cdp) { // This packet comes from a circuit we don't know about. // Are we rejecting off-circuit packets? if (mbProtected) { // cdp is already NULL, so we don't need to unset it. } else { // nope, open the new circuit cdp = mCircuitInfo.addCircuitData(host, mCurrentRecvPacketID); if(resetPacketId) { // I added this - I think it's correct - DJS // reset packet in ID cdp->setPacketInID(mCurrentRecvPacketID); } // And claim the packet is on the circuit we just added. } } else { // this is an old circuit. . . is it still alive? if (!cdp->isAlive()) { // nope. don't accept if we're protected if (mbProtected) { // don't accept packets from unexpected sources cdp = NULL; } else { // wake up the circuit cdp->setAlive(TRUE); if(resetPacketId) { // reset packet in ID cdp->setPacketInID(mCurrentRecvPacketID); } } } } return cdp; } // Returns TRUE if a valid, on-circuit message has been received. BOOL LLMessageSystem::checkMessages( S64 frame_count ) { // Pump BOOL valid_packet = FALSE; mMessageReader = mTemplateMessageReader; LLTransferTargetVFile::updateQueue(); if (!mNumMessageCounts) { // This is the first message being handled after a resetReceiveCounts, // we must be starting the message processing loop. Reset the timers. mCurrentMessageTimeSeconds = totalTime() * SEC_PER_USEC; mMessageCountTime = getMessageTimeSeconds(); } // loop until either no packets or a valid packet // i.e., burn through packets from unregistered circuits S32 receive_size = 0; do { clearReceiveState(); BOOL recv_reliable = FALSE; BOOL recv_resent = FALSE; S32 acks = 0; S32 true_rcv_size = 0; U8* buffer = mTrueReceiveBuffer; mTrueReceiveSize = mPacketRing.receivePacket(mSocket, (char *)mTrueReceiveBuffer); // If you want to dump all received packets into SecondLife.log, uncomment this //dumpPacketToLog(); receive_size = mTrueReceiveSize; mLastSender = mPacketRing.getLastSender(); mLastReceivingIF = mPacketRing.getLastReceivingInterface(); if (receive_size < (S32) LL_MINIMUM_VALID_PACKET_SIZE) { // A receive size of zero is OK, that means that there are no more packets available. // Ones that are non-zero but below the minimum packet size are worrisome. if (receive_size > 0) { LL_WARNS("Messaging") << "Invalid (too short) packet discarded " << receive_size << LL_ENDL; callExceptionFunc(MX_PACKET_TOO_SHORT); } // no data in packet receive buffer valid_packet = FALSE; } else { LLHost host; LLCircuitData* cdp; // note if packet acks are appended. if(buffer[0] & LL_ACK_FLAG) { acks += buffer[--receive_size]; true_rcv_size = receive_size; if(receive_size >= ((S32)(acks * sizeof(TPACKETID) + LL_MINIMUM_VALID_PACKET_SIZE))) { receive_size -= acks * sizeof(TPACKETID); } else { // mal-formed packet. ignore it and continue with // the next one LL_WARNS("Messaging") << "Malformed packet received. Packet size " << receive_size << " with invalid no. of acks " << acks << LL_ENDL; valid_packet = FALSE; continue; } } // process the message as normal mIncomingCompressedSize = zeroCodeExpand(&buffer, &receive_size); mCurrentRecvPacketID = ntohl(*((U32*)(&buffer[1]))); host = getSender(); const bool resetPacketId = true; cdp = findCircuit(host, resetPacketId); // At this point, cdp is now a pointer to the circuit that // this message came in on if it's valid, and NULL if the // circuit was bogus. if(cdp && (acks > 0) && ((S32)(acks * sizeof(TPACKETID)) < (true_rcv_size))) { TPACKETID packet_id; U32 mem_id=0; for(S32 i = 0; i < acks; ++i) { true_rcv_size -= sizeof(TPACKETID); memcpy(&mem_id, &mTrueReceiveBuffer[true_rcv_size], /* Flawfinder: ignore*/ sizeof(TPACKETID)); packet_id = ntohl(mem_id); //LL_INFOS("Messaging") << "got ack: " << packet_id << LL_ENDL; cdp->ackReliablePacket(packet_id); } if (!cdp->getUnackedPacketCount()) { // Remove this circuit from the list of circuits with unacked packets mCircuitInfo.mUnackedCircuitMap.erase(cdp->mHost); } } if (buffer[0] & LL_RELIABLE_FLAG) { recv_reliable = TRUE; } if (buffer[0] & LL_RESENT_FLAG) { recv_resent = TRUE; if (cdp && cdp->isDuplicateResend(mCurrentRecvPacketID)) { // We need to ACK here to suppress // further resends of packets we've // already seen. if (recv_reliable) { //mAckList.addData(new LLPacketAck(host, mCurrentRecvPacketID)); // *************************************** // TESTING CODE //if(mCircuitInfo.mCurrentCircuit->mHost != host) //{ // LL_WARNS("Messaging") << "DISCARDED PACKET HOST MISMATCH! HOST: " // << host << " CIRCUIT: " // << mCircuitInfo.mCurrentCircuit->mHost // << LL_ENDL; //} // *************************************** //mCircuitInfo.mCurrentCircuit->mAcks.put(mCurrentRecvPacketID); cdp->collectRAck(mCurrentRecvPacketID); } LL_DEBUGS("Messaging") << "Discarding duplicate resend from " << host << LL_ENDL; if(mVerboseLog) { std::ostringstream str; str << "MSG: <- " << host; std::string tbuf; tbuf = llformat( "\t%6d\t%6d\t%6d ", receive_size, (mIncomingCompressedSize ? mIncomingCompressedSize : receive_size), mCurrentRecvPacketID); str << tbuf << "(unknown)" << (recv_reliable ? " reliable" : "") << " resent " << ((acks > 0) ? "acks" : "") << " DISCARD DUPLICATE"; LL_INFOS("Messaging") << str.str() << LL_ENDL; } mPacketsIn++; valid_packet = FALSE; continue; } } // UseCircuitCode can be a valid, off-circuit packet. // But we don't want to acknowledge UseCircuitCode until the circuit is // available, which is why the acknowledgement test is done above. JC bool trusted = cdp && cdp->getTrusted(); valid_packet = mTemplateMessageReader->validateMessage( buffer, receive_size, host, trusted); if (!valid_packet) { clearReceiveState(); } // UseCircuitCode is allowed in even from an invalid circuit, so that // we can toss circuits around. if( valid_packet && !cdp && (mTemplateMessageReader->getMessageName() != _PREHASH_UseCircuitCode)) { logMsgFromInvalidCircuit( host, recv_reliable ); clearReceiveState(); valid_packet = FALSE; } if( valid_packet && cdp && !cdp->getTrusted() && mTemplateMessageReader->isTrusted()) { logTrustedMsgFromUntrustedCircuit( host ); clearReceiveState(); sendDenyTrustedCircuit(host); valid_packet = FALSE; } if( valid_packet ) { logValidMsg(cdp, host, recv_reliable, recv_resent, (BOOL)(acks>0) ); valid_packet = mTemplateMessageReader->readMessage(buffer, host); } // It's possible that the circuit went away, because ANY message can disable the circuit // (for example, UseCircuit, CloseCircuit, DisableSimulator). Find it again. cdp = mCircuitInfo.findCircuit(host); if (valid_packet) { mPacketsIn++; mBytesIn += mTrueReceiveSize; // ACK here for valid packets that we've seen // for the first time. if (cdp && recv_reliable) { // Add to the recently received list for duplicate suppression cdp->mRecentlyReceivedReliablePackets[mCurrentRecvPacketID] = getMessageTimeUsecs(); // Put it onto the list of packets to be acked cdp->collectRAck(mCurrentRecvPacketID); mReliablePacketsIn++; } } else { if (mbProtected && (!cdp)) { LL_WARNS("Messaging") << "Invalid Packet from invalid circuit " << host << LL_ENDL; mOffCircuitPackets++; } else { mInvalidOnCircuitPackets++; } } } } while (!valid_packet && receive_size > 0); F64 mt_sec = getMessageTimeSeconds(); // Check to see if we need to print debug info if ((mt_sec - mCircuitPrintTime) > mCircuitPrintFreq) { dumpCircuitInfo(); mCircuitPrintTime = mt_sec; } if( !valid_packet ) { clearReceiveState(); } return valid_packet; } S32 LLMessageSystem::getReceiveBytes() const { if (getReceiveCompressedSize()) { return getReceiveCompressedSize() * 8; } else { return getReceiveSize() * 8; } } void LLMessageSystem::processAcks() { F64 mt_sec = getMessageTimeSeconds(); { gTransferManager.updateTransfers(); if (gXferManager) { gXferManager->retransmitUnackedPackets(); } if (gAssetStorage) { gAssetStorage->checkForTimeouts(); } } BOOL dump = FALSE; { // Check the status of circuits mCircuitInfo.updateWatchDogTimers(this); //resend any necessary packets mCircuitInfo.resendUnackedPackets(mUnackedListDepth, mUnackedListSize); //cycle through ack list for each host we need to send acks to mCircuitInfo.sendAcks(); if (!mDenyTrustedCircuitSet.empty()) { LL_INFOS("Messaging") << "Sending queued DenyTrustedCircuit messages." << LL_ENDL; for (host_set_t::iterator hostit = mDenyTrustedCircuitSet.begin(); hostit != mDenyTrustedCircuitSet.end(); ++hostit) { reallySendDenyTrustedCircuit(*hostit); } mDenyTrustedCircuitSet.clear(); } if (mMaxMessageCounts >= 0) { if (mNumMessageCounts >= mMaxMessageCounts) { dump = TRUE; } } if (mMaxMessageTime >= 0.f) { // This is one of the only places where we're required to get REAL message system time. mReceiveTime = (F32)(getMessageTimeSeconds(TRUE) - mMessageCountTime); if (mReceiveTime > mMaxMessageTime) { dump = TRUE; } } } if (dump) { dumpReceiveCounts(); } resetReceiveCounts(); if ((mt_sec - mResendDumpTime) > CIRCUIT_DUMP_TIMEOUT) { mResendDumpTime = mt_sec; mCircuitInfo.dumpResends(); } } void LLMessageSystem::copyMessageReceivedToSend() { // NOTE: babbage: switch builder to match reader to avoid // converting message format if(mMessageReader == mTemplateMessageReader) { mMessageBuilder = mTemplateMessageBuilder; } else { mMessageBuilder = mLLSDMessageBuilder; } mSendReliable = FALSE; mMessageBuilder->newMessage(mMessageReader->getMessageName()); mMessageReader->copyToBuilder(*mMessageBuilder); } LLSD LLMessageSystem::getReceivedMessageLLSD() const { LLSDMessageBuilder builder; mMessageReader->copyToBuilder(builder); return builder.getMessage(); } LLSD LLMessageSystem::getBuiltMessageLLSD() const { LLSD result; if (mLLSDMessageBuilder == mMessageBuilder) { result = mLLSDMessageBuilder->getMessage(); } else { // TODO: implement as below? LL_ERRS() << "Message not built as LLSD." << LL_ENDL; } return result; } LLSD LLMessageSystem::wrapReceivedTemplateData() const { if(mMessageReader == mTemplateMessageReader) { LLTemplateMessageBuilder builder(mMessageTemplates); builder.newMessage(mMessageReader->getMessageName()); mMessageReader->copyToBuilder(builder); U8 buffer[MAX_BUFFER_SIZE]; const U8 offset_to_data = 0; U32 size = builder.buildMessage(buffer, MAX_BUFFER_SIZE, offset_to_data); std::vector binary_data(buffer, buffer+size); LLSD wrapped_data = LLSD::emptyMap(); wrapped_data["binary-template-data"] = binary_data; return wrapped_data; } else { return getReceivedMessageLLSD(); } } LLSD LLMessageSystem::wrapBuiltTemplateData() const { LLSD result; if (mLLSDMessageBuilder == mMessageBuilder) { result = getBuiltMessageLLSD(); } else { U8 buffer[MAX_BUFFER_SIZE]; const U8 offset_to_data = 0; U32 size = mTemplateMessageBuilder->buildMessage( buffer, MAX_BUFFER_SIZE, offset_to_data); std::vector binary_data(buffer, buffer+size); LLSD wrapped_data = LLSD::emptyMap(); wrapped_data["binary-template-data"] = binary_data; result = wrapped_data; } return result; } LLStoredMessagePtr LLMessageSystem::getReceivedMessage() const { const std::string& name = mMessageReader->getMessageName(); LLSD message = wrapReceivedTemplateData(); return LLStoredMessagePtr(new LLStoredMessage(name, message)); } LLStoredMessagePtr LLMessageSystem::getBuiltMessage() const { const std::string& name = mMessageBuilder->getMessageName(); LLSD message = wrapBuiltTemplateData(); return LLStoredMessagePtr(new LLStoredMessage(name, message)); } S32 LLMessageSystem::sendMessage(const LLHost &host, LLStoredMessagePtr message) { return sendMessage(host, message->mName.c_str(), message->mMessage); } void LLMessageSystem::clearMessage() { mSendReliable = FALSE; mMessageBuilder->clearMessage(); } // set block to add data to within current message void LLMessageSystem::nextBlockFast(const char *blockname) { mMessageBuilder->nextBlock(blockname); } void LLMessageSystem::nextBlock(const char *blockname) { nextBlockFast(LLMessageStringTable::getInstance()->getString(blockname)); } BOOL LLMessageSystem::isSendFull(const char* blockname) { char* stringTableName = NULL; if(NULL != blockname) { stringTableName = LLMessageStringTable::getInstance()->getString(blockname); } return isSendFullFast(stringTableName); } BOOL LLMessageSystem::isSendFullFast(const char* blockname) { return mMessageBuilder->isMessageFull(blockname); } // blow away the last block of a message, return FALSE if that leaves no blocks or there wasn't a block to remove // TODO: Babbage: Remove this horror. BOOL LLMessageSystem::removeLastBlock() { return mMessageBuilder->removeLastBlock(); } S32 LLMessageSystem::sendReliable(const LLHost &host) { return sendReliable(host, LL_DEFAULT_RELIABLE_RETRIES, TRUE, LL_PING_BASED_TIMEOUT_DUMMY, NULL, NULL); } S32 LLMessageSystem::sendSemiReliable(const LLHost &host, void (*callback)(void **,S32), void ** callback_data) { F32 timeout; LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { timeout = llmax(LL_MINIMUM_SEMIRELIABLE_TIMEOUT_SECONDS, LL_SEMIRELIABLE_TIMEOUT_FACTOR * cdp->getPingDelayAveraged()); } else { timeout = LL_SEMIRELIABLE_TIMEOUT_FACTOR * LL_AVERAGED_PING_MAX; } const S32 retries = 0; const BOOL ping_based_timeout = FALSE; return sendReliable(host, retries, ping_based_timeout, timeout, callback, callback_data); } // send the message via a UDP packet S32 LLMessageSystem::sendReliable( const LLHost &host, S32 retries, BOOL ping_based_timeout, F32 timeout, void (*callback)(void **,S32), void ** callback_data) { if (ping_based_timeout) { LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { timeout = llmax(LL_MINIMUM_RELIABLE_TIMEOUT_SECONDS, LL_RELIABLE_TIMEOUT_FACTOR * cdp->getPingDelayAveraged()); } else { timeout = llmax(LL_MINIMUM_RELIABLE_TIMEOUT_SECONDS, LL_RELIABLE_TIMEOUT_FACTOR * LL_AVERAGED_PING_MAX); } } mSendReliable = TRUE; mReliablePacketParams.set(host, retries, ping_based_timeout, timeout, callback, callback_data, const_cast(mMessageBuilder->getMessageName())); return sendMessage(host); } void LLMessageSystem::forwardMessage(const LLHost &host) { copyMessageReceivedToSend(); sendMessage(host); } void LLMessageSystem::forwardReliable(const LLHost &host) { copyMessageReceivedToSend(); sendReliable(host); } void LLMessageSystem::forwardReliable(const U32 circuit_code) { copyMessageReceivedToSend(); sendReliable(findHost(circuit_code)); } S32 LLMessageSystem::forwardReliable( const LLHost &host, S32 retries, BOOL ping_based_timeout, F32 timeout, void (*callback)(void **,S32), void ** callback_data) { copyMessageReceivedToSend(); return sendReliable(host, retries, ping_based_timeout, timeout, callback, callback_data); } S32 LLMessageSystem::flushSemiReliable(const LLHost &host, void (*callback)(void **,S32), void ** callback_data) { F32 timeout; LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { timeout = llmax(LL_MINIMUM_SEMIRELIABLE_TIMEOUT_SECONDS, LL_SEMIRELIABLE_TIMEOUT_FACTOR * cdp->getPingDelayAveraged()); } else { timeout = LL_SEMIRELIABLE_TIMEOUT_FACTOR * LL_AVERAGED_PING_MAX; } S32 send_bytes = 0; if (mMessageBuilder->getMessageSize()) { mSendReliable = TRUE; // No need for ping-based retry as not going to retry mReliablePacketParams.set(host, 0, FALSE, timeout, callback, callback_data, const_cast(mMessageBuilder->getMessageName())); send_bytes = sendMessage(host); clearMessage(); } else { delete callback_data; } return send_bytes; } S32 LLMessageSystem::flushReliable(const LLHost &host) { S32 send_bytes = 0; if (mMessageBuilder->getMessageSize()) { send_bytes = sendReliable(host); } clearMessage(); return send_bytes; } LLHTTPClient::ResponderPtr LLMessageSystem::createResponder(const std::string& name) { if(mSendReliable) { return new LLFnPtrResponder( mReliablePacketParams.mCallback, mReliablePacketParams.mCallbackData, name); } else { // These messages aren't really unreliable, they just weren't // explicitly sent as reliable, so they don't have a callback // LL_WARNS("Messaging") << "LLMessageSystem::sendMessage: Sending unreliable " // << mMessageBuilder->getMessageName() << " message via HTTP" // << LL_ENDL; return new LLFnPtrResponder( NULL, NULL, name); } } // This can be called from signal handlers, // so should should not use LL_INFOS(). S32 LLMessageSystem::sendMessage(const LLHost &host) { if (! mMessageBuilder->isBuilt()) { mSendSize = mMessageBuilder->buildMessage( mSendBuffer, MAX_BUFFER_SIZE, 0); } if (!(host.isOk())) // if port and ip are zero, don't bother trying to send the message { return 0; } LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (!cdp) { // this is a new circuit! // are we protected? if (mbProtected) { // yup! don't send packets to an unknown circuit if(mVerboseLog) { LL_INFOS_ONCE("Messaging") << "MSG: -> " << host << "\tUNKNOWN CIRCUIT:\t" << mMessageBuilder->getMessageName() << LL_ENDL; } LL_WARNS_ONCE("Messaging") << "sendMessage - Trying to send " << mMessageBuilder->getMessageName() << " on unknown circuit " << host << LL_ENDL; return 0; } else { // nope, open the new circuit cdp = mCircuitInfo.addCircuitData(host, 0); } } else { // this is an old circuit. . . is it still alive? if (!cdp->isAlive()) { // nope. don't send to dead circuits if(mVerboseLog) { LL_INFOS("Messaging") << "MSG: -> " << host << "\tDEAD CIRCUIT\t\t" << mMessageBuilder->getMessageName() << LL_ENDL; } LL_WARNS("Messaging") << "sendMessage - Trying to send message " << mMessageBuilder->getMessageName() << " to dead circuit " << host << LL_ENDL; return 0; } } // NOTE: babbage: LLSD message -> HTTP, template message -> UDP if(mMessageBuilder == mLLSDMessageBuilder) { LLSD message = mLLSDMessageBuilder->getMessage(); const LLHTTPSender& sender = LLHTTPSender::getSender(host); sender.send( host, mLLSDMessageBuilder->getMessageName(), message, createResponder(mLLSDMessageBuilder->getMessageName())); mSendReliable = FALSE; mReliablePacketParams.clear(); return 1; } // zero out the flags and packetid. Subtract 1 here so that we do // not overwrite the offset if it was set set in buildMessage(). memset(mSendBuffer, 0, LL_PACKET_ID_SIZE - 1); // add the send id to the front of the message cdp->nextPacketOutID(); // Packet ID size is always 4 *((S32*)&mSendBuffer[PHL_PACKET_ID]) = htonl(cdp->getPacketOutID()); // Compress the message, which will usually reduce its size. U8 * buf_ptr = (U8 *)mSendBuffer; U32 buffer_length = mSendSize; mMessageBuilder->compressMessage(buf_ptr, buffer_length); if (buffer_length > 1500) { if((mMessageBuilder->getMessageName() != _PREHASH_ChildAgentUpdate) && (mMessageBuilder->getMessageName() != _PREHASH_SendXferPacket)) { LL_WARNS("Messaging") << "sendMessage - Trying to send " << ((buffer_length > 4000) ? "EXTRA " : "") << "BIG message " << mMessageBuilder->getMessageName() << " - " << buffer_length << LL_ENDL; } } if (mSendReliable) { buf_ptr[0] |= LL_RELIABLE_FLAG; if (!cdp->getUnackedPacketCount()) { // We are adding the first packed onto the unacked packet list(s) // Add this circuit to the list of circuits with unacked packets mCircuitInfo.mUnackedCircuitMap[cdp->mHost] = cdp; } cdp->addReliablePacket(mSocket,buf_ptr,buffer_length, &mReliablePacketParams); mReliablePacketsOut++; } // tack packet acks onto the end of this message S32 space_left = (MTUBYTES - buffer_length) / sizeof(TPACKETID); // space left for packet ids S32 ack_count = (S32)cdp->mAcks.size(); BOOL is_ack_appended = FALSE; std::vector acks; if((space_left > 0) && (ack_count > 0) && (mMessageBuilder->getMessageName() != _PREHASH_PacketAck)) { buf_ptr[0] |= LL_ACK_FLAG; S32 append_ack_count = llmin(space_left, ack_count); const S32 MAX_ACKS = 250; append_ack_count = llmin(append_ack_count, MAX_ACKS); std::vector::iterator iter = cdp->mAcks.begin(); std::vector::iterator last = cdp->mAcks.begin(); last += append_ack_count; TPACKETID packet_id; for( ; iter != last ; ++iter) { // grab the next packet id. packet_id = (*iter); if(mVerboseLog) { acks.push_back(packet_id); } // put it on the end of the buffer packet_id = htonl(packet_id); if((S32)(buffer_length + sizeof(TPACKETID)) < MAX_BUFFER_SIZE) { memcpy(&buf_ptr[buffer_length], &packet_id, sizeof(TPACKETID)); /* Flawfinder: ignore */ // Do the accounting buffer_length += sizeof(TPACKETID); } else { // Just reporting error is likely not enough. Need to // check how to abort or error out gracefully from // this function. XXXTBD // *NOTE: Actually hitting this error would indicate // the calculation above for space_left, ack_count, // append_acout_count is incorrect or that // MAX_BUFFER_SIZE has fallen below MTU which is bad // and probably programmer error. LL_ERRS("Messaging") << "Buffer packing failed due to size.." << LL_ENDL; } } // clean up the source cdp->mAcks.erase(cdp->mAcks.begin(), last); // tack the count in the final byte U8 count = (U8)append_ack_count; buf_ptr[buffer_length++] = count; is_ack_appended = TRUE; } BOOL success; success = mPacketRing.sendPacket(mSocket, (char *)buf_ptr, buffer_length, host); if (!success) { mSendPacketFailureCount++; } else { // mCircuitInfo already points to the correct circuit data cdp->addBytesOut( buffer_length ); } if(mVerboseLog) { std::ostringstream str; str << "MSG: -> " << host; std::string buffer; buffer = llformat( "\t%6d\t%6d\t%6d ", mSendSize, buffer_length, cdp->getPacketOutID()); str << buffer << mMessageBuilder->getMessageName() << (mSendReliable ? " reliable " : ""); if(is_ack_appended) { str << "\tACKS:\t"; std::ostream_iterator append(str, " "); std::copy(acks.begin(), acks.end(), append); } LL_INFOS("Messaging") << str.str() << LL_ENDL; } mPacketsOut++; mBytesOut += buffer_length; mSendReliable = FALSE; mReliablePacketParams.clear(); return buffer_length; } void LLMessageSystem::logMsgFromInvalidCircuit( const LLHost& host, BOOL recv_reliable ) { if(mVerboseLog) { std::ostringstream str; str << "MSG: <- " << host; std::string buffer; buffer = llformat( "\t%6d\t%6d\t%6d ", mMessageReader->getMessageSize(), (mIncomingCompressedSize ? mIncomingCompressedSize: mMessageReader->getMessageSize()), mCurrentRecvPacketID); str << buffer << nullToEmpty(mMessageReader->getMessageName()) << (recv_reliable ? " reliable" : "") << " REJECTED"; LL_INFOS("Messaging") << str.str() << LL_ENDL; } // nope! // cout << "Rejecting unexpected message " << mCurrentMessageTemplate->mName << " from " << hex << ip << " , " << dec << port << endl; // Keep track of rejected messages as well if (mNumMessageCounts >= MAX_MESSAGE_COUNT_NUM) { LL_WARNS("Messaging") << "Got more than " << MAX_MESSAGE_COUNT_NUM << " packets without clearing counts" << LL_ENDL; } else { // TODO: babbage: work out if we need these // mMessageCountList[mNumMessageCounts].mMessageNum = mCurrentRMessageTemplate->mMessageNumber; mMessageCountList[mNumMessageCounts].mMessageBytes = mMessageReader->getMessageSize(); mMessageCountList[mNumMessageCounts].mInvalid = TRUE; mNumMessageCounts++; } } S32 LLMessageSystem::sendMessage( const LLHost &host, const char* name, const LLSD& message) { if (!(host.isOk())) { LL_WARNS("Messaging") << "trying to send message to invalid host" << LL_ENDL; return 0; } const LLHTTPSender& sender = LLHTTPSender::getSender(host); sender.send(host, name, message, createResponder(name)); return 1; } void LLMessageSystem::logTrustedMsgFromUntrustedCircuit( const LLHost& host ) { // RequestTrustedCircuit is how we establish trust, so don't spam // if it's received on a trusted circuit. JC if (strcmp(mMessageReader->getMessageName(), "RequestTrustedCircuit")) { LL_WARNS("Messaging") << "Received trusted message on untrusted circuit. " << "Will reply with deny. " << "Message: " << nullToEmpty(mMessageReader->getMessageName()) << " Host: " << host << LL_ENDL; } if (mNumMessageCounts >= MAX_MESSAGE_COUNT_NUM) { LL_WARNS("Messaging") << "got more than " << MAX_MESSAGE_COUNT_NUM << " packets without clearing counts" << LL_ENDL; } else { // TODO: babbage: work out if we need these //mMessageCountList[mNumMessageCounts].mMessageNum // = mCurrentRMessageTemplate->mMessageNumber; mMessageCountList[mNumMessageCounts].mMessageBytes = mMessageReader->getMessageSize(); mMessageCountList[mNumMessageCounts].mInvalid = TRUE; mNumMessageCounts++; } } void LLMessageSystem::logValidMsg(LLCircuitData *cdp, const LLHost& host, BOOL recv_reliable, BOOL recv_resent, BOOL recv_acks ) { if (mNumMessageCounts >= MAX_MESSAGE_COUNT_NUM) { LL_WARNS("Messaging") << "Got more than " << MAX_MESSAGE_COUNT_NUM << " packets without clearing counts" << LL_ENDL; } else { // TODO: babbage: work out if we need these //mMessageCountList[mNumMessageCounts].mMessageNum = mCurrentRMessageTemplate->mMessageNumber; mMessageCountList[mNumMessageCounts].mMessageBytes = mMessageReader->getMessageSize(); mMessageCountList[mNumMessageCounts].mInvalid = FALSE; mNumMessageCounts++; } if (cdp) { // update circuit packet ID tracking (missing/out of order packets) cdp->checkPacketInID( mCurrentRecvPacketID, recv_resent ); cdp->addBytesIn( mTrueReceiveSize ); } if(mVerboseLog) { std::ostringstream str; str << "MSG: <- " << host; std::string buffer; buffer = llformat( "\t%6d\t%6d\t%6d ", mMessageReader->getMessageSize(), (mIncomingCompressedSize ? mIncomingCompressedSize : mMessageReader->getMessageSize()), mCurrentRecvPacketID); str << buffer << nullToEmpty(mMessageReader->getMessageName()) << (recv_reliable ? " reliable" : "") << (recv_resent ? " resent" : "") << (recv_acks ? " acks" : ""); LL_INFOS("Messaging") << str.str() << LL_ENDL; } } void LLMessageSystem::sanityCheck() { // TODO: babbage: reinstate // if (!mCurrentRMessageData) // { // LL_ERRS("Messaging") << "mCurrentRMessageData is NULL" << LL_ENDL; // } // if (!mCurrentRMessageTemplate) // { // LL_ERRS("Messaging") << "mCurrentRMessageTemplate is NULL" << LL_ENDL; // } // if (!mCurrentRTemplateBlock) // { // LL_ERRS("Messaging") << "mCurrentRTemplateBlock is NULL" << LL_ENDL; // } // if (!mCurrentRDataBlock) // { // LL_ERRS("Messaging") << "mCurrentRDataBlock is NULL" << LL_ENDL; // } // if (!mCurrentSMessageData) // { // LL_ERRS("Messaging") << "mCurrentSMessageData is NULL" << LL_ENDL; // } // if (!mCurrentSMessageTemplate) // { // LL_ERRS("Messaging") << "mCurrentSMessageTemplate is NULL" << LL_ENDL; // } // if (!mCurrentSTemplateBlock) // { // LL_ERRS("Messaging") << "mCurrentSTemplateBlock is NULL" << LL_ENDL; // } // if (!mCurrentSDataBlock) // { // LL_ERRS("Messaging") << "mCurrentSDataBlock is NULL" << LL_ENDL; // } } void LLMessageSystem::showCircuitInfo() { LL_INFOS("Messaging") << mCircuitInfo << LL_ENDL; } void LLMessageSystem::dumpCircuitInfo() { LL_DEBUGS("Messaging") << mCircuitInfo << LL_ENDL; } /* virtual */ U32 LLMessageSystem::getOurCircuitCode() { return mOurCircuitCode; } void LLMessageSystem::getCircuitInfo(LLSD& info) const { mCircuitInfo.getInfo(info); } // returns whether the given host is on a trusted circuit BOOL LLMessageSystem::getCircuitTrust(const LLHost &host) { LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { return cdp->getTrusted(); } return FALSE; } // Activate a circuit, and set its trust level (TRUE if trusted, // FALSE if not). void LLMessageSystem::enableCircuit(const LLHost &host, BOOL trusted) { LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (!cdp) { cdp = mCircuitInfo.addCircuitData(host, 0); } else { cdp->setAlive(TRUE); } cdp->setTrusted(trusted); } void LLMessageSystem::disableCircuit(const LLHost &host) { LL_INFOS("Messaging") << "LLMessageSystem::disableCircuit for " << host << LL_ENDL; U32 code = gMessageSystem->findCircuitCode( host ); // Don't need to do this, as we're removing the circuit info anyway - djs 01/28/03 // don't clean up 0 circuit code entries // because many hosts (neighbor sims, etc) can have the 0 circuit if (code) { //if (mCircuitCodes.checkKey(code)) code_session_map_t::iterator it = mCircuitCodes.find(code); if(it != mCircuitCodes.end()) { LL_INFOS("Messaging") << "Circuit " << code << " removed from list" << LL_ENDL; //mCircuitCodes.removeData(code); mCircuitCodes.erase(it); } U64 ip_port = 0; std::map::iterator iter = gMessageSystem->mCircuitCodeToIPPort.find(code); if (iter != gMessageSystem->mCircuitCodeToIPPort.end()) { ip_port = iter->second; gMessageSystem->mCircuitCodeToIPPort.erase(iter); U32 old_port = (U32)(ip_port & (U64)0xFFFFFFFF); U32 old_ip = (U32)(ip_port >> 32); LL_INFOS("Messaging") << "Host " << LLHost(old_ip, old_port) << " circuit " << code << " removed from lookup table" << LL_ENDL; gMessageSystem->mIPPortToCircuitCode.erase(ip_port); } mCircuitInfo.removeCircuitData(host); } else { // Sigh, since we can open circuits which don't have circuit // codes, it's possible for this to happen... LL_WARNS("Messaging") << "Couldn't find circuit code for " << host << LL_ENDL; } } void LLMessageSystem::setCircuitAllowTimeout(const LLHost &host, BOOL allow) { LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { cdp->setAllowTimeout(allow); } } void LLMessageSystem::setCircuitTimeoutCallback(const LLHost &host, void (*callback_func)(const LLHost & host, void *user_data), void *user_data) { LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { cdp->setTimeoutCallback(callback_func, user_data); } } BOOL LLMessageSystem::checkCircuitBlocked(const U32 circuit) { LLHost host = findHost(circuit); if (!host.isOk()) { LL_DEBUGS("Messaging") << "checkCircuitBlocked: Unknown circuit " << circuit << LL_ENDL; return TRUE; } LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { return cdp->isBlocked(); } else { LL_INFOS("Messaging") << "checkCircuitBlocked(circuit): Unknown host - " << host << LL_ENDL; return FALSE; } } BOOL LLMessageSystem::checkCircuitAlive(const U32 circuit) { LLHost host = findHost(circuit); if (!host.isOk()) { LL_DEBUGS("Messaging") << "checkCircuitAlive: Unknown circuit " << circuit << LL_ENDL; return FALSE; } LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { return cdp->isAlive(); } else { LL_INFOS("Messaging") << "checkCircuitAlive(circuit): Unknown host - " << host << LL_ENDL; return FALSE; } } BOOL LLMessageSystem::checkCircuitAlive(const LLHost &host) { LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (cdp) { return cdp->isAlive(); } else { LL_DEBUGS("Messaging") << "checkCircuitAlive(host): Unknown host - " << host << LL_ENDL; return FALSE; } } void LLMessageSystem::setCircuitProtection(BOOL b_protect) { mbProtected = b_protect; } U32 LLMessageSystem::findCircuitCode(const LLHost &host) { U64 ip64 = (U64) host.getAddress(); U64 port64 = (U64) host.getPort(); U64 ip_port = (ip64 << 32) | port64; return get_if_there(mIPPortToCircuitCode, ip_port, U32(0)); } LLHost LLMessageSystem::findHost(const U32 circuit_code) { if (mCircuitCodeToIPPort.count(circuit_code) > 0) { return LLHost(mCircuitCodeToIPPort[circuit_code]); } else { return LLHost::invalid; } } void LLMessageSystem::setMaxMessageTime(const F32 seconds) { mMaxMessageTime = seconds; } void LLMessageSystem::setMaxMessageCounts(const S32 num) { mMaxMessageCounts = num; } std::ostream& operator<<(std::ostream& s, LLMessageSystem &msg) { U32 i; if (msg.mbError) { s << "Message system not correctly initialized"; } else { s << "Message system open on port " << msg.mPort << " and socket " << msg.mSocket << "\n"; // s << "Message template file " << msg.mName << " loaded\n"; s << "\nHigh frequency messages:\n"; for (i = 1; msg.mMessageNumbers[i] && (i < 255); i++) { s << *(msg.mMessageNumbers[i]); } s << "\nMedium frequency messages:\n"; for (i = (255 << 8) + 1; msg.mMessageNumbers[i] && (i < (255 << 8) + 255); i++) { s << *msg.mMessageNumbers[i]; } s << "\nLow frequency messages:\n"; for (i = (0xFFFF0000) + 1; msg.mMessageNumbers[i] && (i < 0xFFFFFFFF); i++) { s << *msg.mMessageNumbers[i]; } } return s; } LLMessageSystem *gMessageSystem = NULL; // update appropriate ping info void process_complete_ping_check(LLMessageSystem *msgsystem, void** /*user_data*/) { U8 ping_id; msgsystem->getU8Fast(_PREHASH_PingID, _PREHASH_PingID, ping_id); LLCircuitData *cdp; cdp = msgsystem->mCircuitInfo.findCircuit(msgsystem->getSender()); // stop the appropriate timer if (cdp) { cdp->pingTimerStop(ping_id); } } void process_start_ping_check(LLMessageSystem *msgsystem, void** /*user_data*/) { U8 ping_id; msgsystem->getU8Fast(_PREHASH_PingID, _PREHASH_PingID, ping_id); LLCircuitData *cdp; cdp = msgsystem->mCircuitInfo.findCircuit(msgsystem->getSender()); if (cdp) { // Grab the packet id of the oldest unacked packet U32 packet_id; msgsystem->getU32Fast(_PREHASH_PingID, _PREHASH_OldestUnacked, packet_id); cdp->clearDuplicateList(packet_id); } // Send off the response msgsystem->newMessageFast(_PREHASH_CompletePingCheck); msgsystem->nextBlockFast(_PREHASH_PingID); msgsystem->addU8(_PREHASH_PingID, ping_id); msgsystem->sendMessage(msgsystem->getSender()); } // Note: this is currently unused. --mark void open_circuit(LLMessageSystem *msgsystem, void** /*user_data*/) { U32 ip; U16 port; msgsystem->getIPAddrFast(_PREHASH_CircuitInfo, _PREHASH_IP, ip); msgsystem->getIPPortFast(_PREHASH_CircuitInfo, _PREHASH_Port, port); // By default, OpenCircuit's are untrusted msgsystem->enableCircuit(LLHost(ip, port), FALSE); } void close_circuit(LLMessageSystem *msgsystem, void** /*user_data*/) { msgsystem->disableCircuit(msgsystem->getSender()); } // static /* void LLMessageSystem::processAssignCircuitCode(LLMessageSystem* msg, void**) { // if we already have a circuit code, we can bail if(msg->mOurCircuitCode) return; LLUUID session_id; msg->getUUIDFast(_PREHASH_CircuitCode, _PREHASH_SessionID, session_id); if(session_id != msg->getMySessionID()) { LL_WARNS("Messaging") << "AssignCircuitCode, bad session id. Expecting " << msg->getMySessionID() << " but got " << session_id << LL_ENDL; return; } U32 code; msg->getU32Fast(_PREHASH_CircuitCode, _PREHASH_Code, code); if (!code) { LL_ERRS("Messaging") << "Assigning circuit code of zero!" << LL_ENDL; } msg->mOurCircuitCode = code; LL_INFOS("Messaging") << "Circuit code " << code << " assigned." << LL_ENDL; } */ // static void LLMessageSystem::processAddCircuitCode(LLMessageSystem* msg, void**) { U32 code; msg->getU32Fast(_PREHASH_CircuitCode, _PREHASH_Code, code); LLUUID session_id; msg->getUUIDFast(_PREHASH_CircuitCode, _PREHASH_SessionID, session_id); (void)msg->addCircuitCode(code, session_id); // Send the ack back //msg->newMessageFast(_PREHASH_AckAddCircuitCode); //msg->nextBlockFast(_PREHASH_CircuitCode); //msg->addU32Fast(_PREHASH_Code, code); //msg->sendMessage(msg->getSender()); } bool LLMessageSystem::addCircuitCode(U32 code, const LLUUID& session_id) { if(!code) { LL_WARNS("Messaging") << "addCircuitCode: zero circuit code" << LL_ENDL; return false; } code_session_map_t::iterator it = mCircuitCodes.find(code); if(it == mCircuitCodes.end()) { LL_INFOS("Messaging") << "New circuit code " << code << " added" << LL_ENDL; //msg->mCircuitCodes[circuit_code] = circuit_code; mCircuitCodes.insert(code_session_map_t::value_type(code, session_id)); } else { LL_INFOS("Messaging") << "Duplicate circuit code " << code << " added" << LL_ENDL; } return true; } //void ack_add_circuit_code(LLMessageSystem *msgsystem, void** /*user_data*/) //{ // By default, we do nothing. This particular message is only handled by the spaceserver //} // static void LLMessageSystem::processUseCircuitCode(LLMessageSystem* msg, void** user) { U32 circuit_code_in; msg->getU32Fast(_PREHASH_CircuitCode, _PREHASH_Code, circuit_code_in); U32 ip = msg->getSenderIP(); U32 port = msg->getSenderPort(); U64 ip64 = ip; U64 port64 = port; U64 ip_port_in = (ip64 << 32) | port64; if (circuit_code_in) { //if (!msg->mCircuitCodes.checkKey(circuit_code_in)) code_session_map_t::iterator it; it = msg->mCircuitCodes.find(circuit_code_in); if(it == msg->mCircuitCodes.end()) { // Whoah, abort! We don't know anything about this circuit code. LL_WARNS("Messaging") << "UseCircuitCode for " << circuit_code_in << " received without AddCircuitCode message - aborting" << LL_ENDL; return; } LLUUID id; msg->getUUIDFast(_PREHASH_CircuitCode, _PREHASH_ID, id); LLUUID session_id; msg->getUUIDFast(_PREHASH_CircuitCode, _PREHASH_SessionID, session_id); if(session_id != (*it).second) { LL_WARNS("Messaging") << "UseCircuitCode unmatched session id. Got " << session_id << " but expected " << (*it).second << LL_ENDL; return; } // Clean up previous references to this ip/port or circuit U64 ip_port_old = get_if_there(msg->mCircuitCodeToIPPort, circuit_code_in, U64(0)); U32 circuit_code_old = get_if_there(msg->mIPPortToCircuitCode, ip_port_in, U32(0)); if (ip_port_old) { if ((ip_port_old == ip_port_in) && (circuit_code_old == circuit_code_in)) { // Current information is the same as incoming info, ignore LL_INFOS("Messaging") << "Got duplicate UseCircuitCode for circuit " << circuit_code_in << " to " << msg->getSender() << LL_ENDL; return; } // Hmm, got a different IP and port for the same circuit code. U32 circut_code_old_ip_port = get_if_there(msg->mIPPortToCircuitCode, ip_port_old, U32(0)); msg->mCircuitCodeToIPPort.erase(circut_code_old_ip_port); msg->mIPPortToCircuitCode.erase(ip_port_old); U32 old_port = (U32)(ip_port_old & (U64)0xFFFFFFFF); U32 old_ip = (U32)(ip_port_old >> 32); LL_INFOS("Messaging") << "Removing derelict lookup entry for circuit " << circuit_code_old << " to " << LLHost(old_ip, old_port) << LL_ENDL; } if (circuit_code_old) { LLHost cur_host(ip, port); LL_WARNS("Messaging") << "Disabling existing circuit for " << cur_host << LL_ENDL; msg->disableCircuit(cur_host); if (circuit_code_old == circuit_code_in) { LL_WARNS("Messaging") << "Asymmetrical circuit to ip/port lookup!" << LL_ENDL; LL_WARNS("Messaging") << "Multiple circuit codes for " << cur_host << " probably!" << LL_ENDL; LL_WARNS("Messaging") << "Permanently disabling circuit" << LL_ENDL; return; } else { LL_WARNS("Messaging") << "Circuit code changed for " << msg->getSender() << " from " << circuit_code_old << " to " << circuit_code_in << LL_ENDL; } } // Since this comes from the viewer, it's untrusted, but it // passed the circuit code and session id check, so we will go // ahead and persist the ID associated. LLCircuitData *cdp = msg->mCircuitInfo.findCircuit(msg->getSender()); BOOL had_circuit_already = cdp ? TRUE : FALSE; msg->enableCircuit(msg->getSender(), FALSE); cdp = msg->mCircuitInfo.findCircuit(msg->getSender()); if(cdp) { cdp->setRemoteID(id); cdp->setRemoteSessionID(session_id); } if (!had_circuit_already) { // // HACK HACK HACK HACK HACK! // // This would NORMALLY happen inside logValidMsg, but at the point that this happens // inside logValidMsg, there's no circuit for this message yet. So the awful thing that // we do here is do it inside this message handler immediately AFTER the message is // handled. // // We COULD not do this, but then what happens is that some of the circuit bookkeeping // gets broken, especially the packets in count. That causes some later packets to flush // the RecentlyReceivedReliable list, resulting in an error in which UseCircuitCode // doesn't get properly duplicate suppressed. Not a BIG deal, but it's somewhat confusing // (and bad from a state point of view). DJS 9/23/04 // cdp->checkPacketInID(gMessageSystem->mCurrentRecvPacketID, FALSE ); // Since this is the first message on the circuit, by definition it's not resent. } msg->mIPPortToCircuitCode[ip_port_in] = circuit_code_in; msg->mCircuitCodeToIPPort[circuit_code_in] = ip_port_in; LL_INFOS("Messaging") << "Circuit code " << circuit_code_in << " from " << msg->getSender() << " for agent " << id << " in session " << session_id << LL_ENDL; const LLUseCircuitCodeResponder* responder = (const LLUseCircuitCodeResponder*) user; if(responder) { responder->complete(msg->getSender(), id); } } else { LL_WARNS("Messaging") << "Got zero circuit code in use_circuit_code" << LL_ENDL; } } // static void LLMessageSystem::processError(LLMessageSystem* msg, void**) { S32 error_code = 0; msg->getS32("Data", "Code", error_code); std::string error_token; msg->getString("Data", "Token", error_token); LLUUID error_id; msg->getUUID("Data", "ID", error_id); std::string error_system; msg->getString("Data", "System", error_system); std::string error_message; msg->getString("Data", "Message", error_message); LL_WARNS("Messaging") << "Message error from " << msg->getSender() << " - " << error_code << " " << error_token << " " << error_id << " \"" << error_system << "\" \"" << error_message << "\"" << LL_ENDL; } static LLHTTPNode& messageRootNode() { static LLHTTPNode root_node; static bool initialized = false; if (!initialized) { initialized = true; LLHTTPRegistrar::buildAllServices(root_node); } return root_node; } //static void LLMessageSystem::dispatch( const std::string& msg_name, const LLSD& message) { LLPointer responsep = LLSimpleResponse::create(); dispatch(msg_name, message, responsep); } //static void LLMessageSystem::dispatch( const std::string& msg_name, const LLSD& message, LLHTTPNode::ResponsePtr responsep) { if ((gMessageSystem->mMessageTemplates.find (LLMessageStringTable::getInstance()->getString(msg_name.c_str())) == gMessageSystem->mMessageTemplates.end()) && !LLMessageConfig::isValidMessage(msg_name)) { LL_WARNS("Messaging") << "Ignoring unknown message " << msg_name << LL_ENDL; responsep->notFound("Invalid message name"); return; } std::string path = "/message/" + msg_name; LLSD context; const LLHTTPNode* handler = messageRootNode().traverse(path, context); if (!handler) { LL_WARNS("Messaging") << "LLMessageService::dispatch > no handler for " << path << LL_ENDL; return; } // enable this for output of message names //LL_INFOS("Messaging") << "< \"" << msg_name << "\"" << LL_ENDL; //LL_DEBUGS() << "data: " << LLSDNotationStreamer(message) << LL_ENDL; handler->post(responsep, context, message); } //static void LLMessageSystem::dispatchTemplate(const std::string& msg_name, const LLSD& message, LLHTTPNode::ResponsePtr responsep) { LLTemplateMessageDispatcher dispatcher(*(gMessageSystem->mTemplateMessageReader)); dispatcher.dispatch(msg_name, message, responsep); } static void check_for_unrecognized_messages( const char* type, const LLSD& map, LLMessageSystem::message_template_name_map_t& templates) { for (LLSD::map_const_iterator iter = map.beginMap(), end = map.endMap(); iter != end; ++iter) { const char* name = LLMessageStringTable::getInstance()->getString(iter->first.c_str()); if (templates.find(name) == templates.end()) { LL_INFOS("AppInit") << " " << type << " ban list contains unrecognized message " << name << LL_ENDL; } } } void LLMessageSystem::setMessageBans( const LLSD& trusted, const LLSD& untrusted) { LL_DEBUGS("AppInit") << "LLMessageSystem::setMessageBans:" << LL_ENDL; bool any_set = false; for (message_template_name_map_t::iterator iter = mMessageTemplates.begin(), end = mMessageTemplates.end(); iter != end; ++iter) { LLMessageTemplate* mt = iter->second; std::string name(mt->mName); bool ban_from_trusted = trusted.has(name) && trusted.get(name).asBoolean(); bool ban_from_untrusted = untrusted.has(name) && untrusted.get(name).asBoolean(); mt->mBanFromTrusted = ban_from_trusted; mt->mBanFromUntrusted = ban_from_untrusted; if (ban_from_trusted || ban_from_untrusted) { LL_INFOS("AppInit") << " " << name << " banned from " << (ban_from_trusted ? "TRUSTED " : " ") << (ban_from_untrusted ? "UNTRUSTED " : " ") << LL_ENDL; any_set = true; } } if (!any_set) { LL_DEBUGS("AppInit") << " no messages banned" << LL_ENDL; } check_for_unrecognized_messages("trusted", trusted, mMessageTemplates); check_for_unrecognized_messages("untrusted", untrusted, mMessageTemplates); } S32 LLMessageSystem::sendError( const LLHost& host, const LLUUID& agent_id, S32 code, const std::string& token, const LLUUID& id, const std::string& system, const std::string& message, const LLSD& data) { newMessage("Error"); nextBlockFast(_PREHASH_AgentData); addUUIDFast(_PREHASH_AgentID, agent_id); nextBlockFast(_PREHASH_Data); addS32("Code", code); addString("Token", token); addUUID("ID", id); addString("System", system); std::string temp; temp = message; if(temp.size() > (size_t)MTUBYTES) temp.resize((size_t)MTUBYTES); addString("Message", message); LLPointer formatter = new LLSDBinaryFormatter; std::ostringstream ostr; formatter->format(data, ostr); temp = ostr.str(); bool pack_data = true; static const std::string ERROR_MESSAGE_NAME("Error"); if (LLMessageConfig::getMessageFlavor(ERROR_MESSAGE_NAME) == LLMessageConfig::TEMPLATE_FLAVOR) { S32 msg_size = temp.size() + mMessageBuilder->getMessageSize(); if(msg_size >= ETHERNET_MTU_BYTES) { pack_data = false; } } if(pack_data) { addBinaryData("Data", (void*)temp.c_str(), temp.size()); } else { LL_WARNS("Messaging") << "Data and message were too large -- data removed." << LL_ENDL; addBinaryData("Data", NULL, 0); } return sendReliable(host); } void process_packet_ack(LLMessageSystem *msgsystem, void** /*user_data*/) { TPACKETID packet_id; LLHost host = msgsystem->getSender(); LLCircuitData *cdp = msgsystem->mCircuitInfo.findCircuit(host); if (cdp) { S32 ack_count = msgsystem->getNumberOfBlocksFast(_PREHASH_Packets); for (S32 i = 0; i < ack_count; i++) { msgsystem->getU32Fast(_PREHASH_Packets, _PREHASH_ID, packet_id, i); // LL_DEBUGS("Messaging") << "ack recvd' from " << host << " for packet " << (TPACKETID)packet_id << LL_ENDL; cdp->ackReliablePacket(packet_id); } if (!cdp->getUnackedPacketCount()) { // Remove this circuit from the list of circuits with unacked packets gMessageSystem->mCircuitInfo.mUnackedCircuitMap.erase(host); } } } /* void process_log_messages(LLMessageSystem* msg, void**) { U8 log_message; msg->getU8Fast(_PREHASH_Options, _PREHASH_Enable, log_message); if (log_message) { LL_INFOS("Messaging") << "Starting logging via message" << LL_ENDL; msg->startLogging(); } else { LL_INFOS("Messaging") << "Stopping logging via message" << LL_ENDL; msg->stopLogging(); } }*/ // Make circuit trusted if the MD5 Digest matches, otherwise // notify remote end that they are not trusted. void process_create_trusted_circuit(LLMessageSystem *msg, void **) { // don't try to create trust on machines with no shared secret std::string shared_secret = get_shared_secret(); if(shared_secret.empty()) return; LLUUID remote_id; msg->getUUIDFast(_PREHASH_DataBlock, _PREHASH_EndPointID, remote_id); LLCircuitData *cdp = msg->mCircuitInfo.findCircuit(msg->getSender()); if (!cdp) { LL_WARNS("Messaging") << "Attempt to create trusted circuit without circuit data: " << msg->getSender() << LL_ENDL; return; } LLUUID local_id; local_id = cdp->getLocalEndPointID(); if (remote_id == local_id) { // Don't respond to requests that use the same end point ID return; } U32 untrusted_interface = msg->getUntrustedInterface().getAddress(); U32 last_interface = msg->getReceivingInterface().getAddress(); if ( ( untrusted_interface != INVALID_HOST_IP_ADDRESS ) && ( untrusted_interface == last_interface ) ) { if( msg->getBlockUntrustedInterface() ) { LL_WARNS("Messaging") << "Ignoring CreateTrustedCircuit on public interface from host: " << msg->getSender() << LL_ENDL; return; } else { LL_WARNS("Messaging") << "Processing CreateTrustedCircuit on public interface from host: " << msg->getSender() << LL_ENDL; } } char their_digest[MD5HEX_STR_SIZE]; /* Flawfinder: ignore */ S32 size = msg->getSizeFast(_PREHASH_DataBlock, _PREHASH_Digest); if(size != MD5HEX_STR_BYTES) { // ignore requests which pack the wrong amount of data. return; } msg->getBinaryDataFast(_PREHASH_DataBlock, _PREHASH_Digest, their_digest, MD5HEX_STR_BYTES); their_digest[MD5HEX_STR_SIZE - 1] = '\0'; if(msg->isMatchingDigestForWindowAndUUIDs(their_digest, TRUST_TIME_WINDOW, local_id, remote_id)) { cdp->setTrusted(TRUE); LL_INFOS("Messaging") << "Trusted digest from " << msg->getSender() << LL_ENDL; return; } else if (cdp->getTrusted()) { // The digest is bad, but this circuit is already trusted. // This means that this could just be the result of a stale deny sent from a while back, and // the message system is being slow. Don't bother sending the deny, as it may continually // ping-pong back and forth on a very hosed circuit. LL_WARNS("Messaging") << "Ignoring bad digest from known trusted circuit: " << their_digest << " host: " << msg->getSender() << LL_ENDL; return; } else { LL_WARNS("Messaging") << "Bad digest from known circuit: " << their_digest << " host: " << msg->getSender() << LL_ENDL; msg->sendDenyTrustedCircuit(msg->getSender()); return; } } void process_deny_trusted_circuit(LLMessageSystem *msg, void **) { // don't try to create trust on machines with no shared secret std::string shared_secret = get_shared_secret(); if(shared_secret.empty()) return; LLUUID remote_id; msg->getUUIDFast(_PREHASH_DataBlock, _PREHASH_EndPointID, remote_id); LLCircuitData *cdp = msg->mCircuitInfo.findCircuit(msg->getSender()); if (!cdp) { return; } LLUUID local_id; local_id = cdp->getLocalEndPointID(); if (remote_id == local_id) { // Don't respond to requests that use the same end point ID return; } U32 untrusted_interface = msg->getUntrustedInterface().getAddress(); U32 last_interface = msg->getReceivingInterface().getAddress(); if ( ( untrusted_interface != INVALID_HOST_IP_ADDRESS ) && ( untrusted_interface == last_interface ) ) { if( msg->getBlockUntrustedInterface() ) { LL_WARNS("Messaging") << "Ignoring DenyTrustedCircuit on public interface from host: " << msg->getSender() << LL_ENDL; return; } else { LL_WARNS("Messaging") << "Processing DenyTrustedCircuit on public interface from host: " << msg->getSender() << LL_ENDL; } } // Assume that we require trust to proceed, so resend. // This catches the case where a circuit that was trusted // times out, and allows us to re-establish it, but does // mean that if our shared_secret or clock is wrong, we'll // spin. // *TODO: probably should keep a count of number of resends // per circuit, and stop resending after a while. LL_INFOS("Messaging") << "Got DenyTrustedCircuit. Sending CreateTrustedCircuit to " << msg->getSender() << LL_ENDL; msg->sendCreateTrustedCircuit(msg->getSender(), local_id, remote_id); } void dump_prehash_files() { U32 i; std::string filename("../../indra/llmessage/message_prehash.h"); LLFILE* fp = LLFile::fopen(filename, "w"); /* Flawfinder: ignore */ if (fp) { fprintf( fp, "/**\n" " * @file message_prehash.h\n" " * @brief header file of externs of prehashed variables plus defines.\n" " *\n" " * $LicenseInfo:firstyear=2003&license=viewerlgpl$" " * $/LicenseInfo$" " */\n\n" "#ifndef LL_MESSAGE_PREHASH_H\n#define LL_MESSAGE_PREHASH_H\n\n"); fprintf( fp, "/**\n" " * Generated from message template version number %.3f\n" " */\n", gMessageSystem->mMessageFileVersionNumber); fprintf(fp, "\n\nextern F32 const gPrehashVersionNumber;\n\n"); for (i = 0; i < MESSAGE_NUMBER_OF_HASH_BUCKETS; i++) { if (!LLMessageStringTable::getInstance()->mEmpty[i] && LLMessageStringTable::getInstance()->mString[i][0] != '.') { fprintf(fp, "extern char const* const _PREHASH_%s;\n", LLMessageStringTable::getInstance()->mString[i]); } } fprintf(fp, "\n\n#endif\n"); fclose(fp); } filename = std::string("../../indra/llmessage/message_prehash.cpp"); fp = LLFile::fopen(filename, "w"); /* Flawfinder: ignore */ if (fp) { fprintf( fp, "/**\n" " * @file message_prehash.cpp\n" " * @brief file of prehashed variables\n" " *\n" " * $LicenseInfo:firstyear=2003&license=viewerlgpl$" " * $/LicenseInfo$" " */\n\n" "/**\n" " * Generated from message template version number %.3f\n" " */\n", gMessageSystem->mMessageFileVersionNumber); fprintf(fp, "#include \"linden_common.h\"\n"); fprintf(fp, "#include \"message.h\"\n\n"); fprintf(fp, "\n\nF32 const gPrehashVersionNumber = %.3ff;\n\n", gMessageSystem->mMessageFileVersionNumber); for (i = 0; i < MESSAGE_NUMBER_OF_HASH_BUCKETS; i++) { if (!LLMessageStringTable::getInstance()->mEmpty[i] && LLMessageStringTable::getInstance()->mString[i][0] != '.') { fprintf(fp, "char const* const _PREHASH_%s = LLMessageStringTable::getInstance()->getString(\"%s\");\n", LLMessageStringTable::getInstance()->mString[i], LLMessageStringTable::getInstance()->mString[i]); } } fclose(fp); } } bool start_messaging_system( const std::string& template_name, U32 port, S32 version_major, S32 version_minor, S32 version_patch, bool b_dump_prehash_file, const std::string& secret, const LLUseCircuitCodeResponder* responder, bool failure_is_fatal, const F32 circuit_heartbeat_interval, const F32 circuit_timeout) { gMessageSystem = new LLMessageSystem( template_name, port, version_major, version_minor, version_patch, failure_is_fatal, circuit_heartbeat_interval, circuit_timeout); g_shared_secret.assign(secret); if (!gMessageSystem) { LL_ERRS("AppInit") << "Messaging system initialization failed." << LL_ENDL; return FALSE; } // bail if system encountered an error. if(!gMessageSystem->isOK()) { return FALSE; } if (b_dump_prehash_file) { dump_prehash_files(); exit(0); } else { if (gMessageSystem->mMessageFileVersionNumber != gPrehashVersionNumber) { LL_INFOS("AppInit") << "Message template version does not match prehash version number" << LL_ENDL; LL_INFOS("AppInit") << "Run simulator with -prehash command line option to rebuild prehash data" << LL_ENDL; } else { LL_DEBUGS("AppInit") << "Message template version matches prehash version number" << LL_ENDL; } } gMessageSystem->setHandlerFuncFast(_PREHASH_StartPingCheck, process_start_ping_check, NULL); gMessageSystem->setHandlerFuncFast(_PREHASH_CompletePingCheck, process_complete_ping_check, NULL); gMessageSystem->setHandlerFuncFast(_PREHASH_OpenCircuit, open_circuit, NULL); gMessageSystem->setHandlerFuncFast(_PREHASH_CloseCircuit, close_circuit, NULL); //gMessageSystem->setHandlerFuncFast(_PREHASH_AssignCircuitCode, LLMessageSystem::processAssignCircuitCode); gMessageSystem->setHandlerFuncFast(_PREHASH_AddCircuitCode, LLMessageSystem::processAddCircuitCode); //gMessageSystem->setHandlerFuncFast(_PREHASH_AckAddCircuitCode, ack_add_circuit_code, NULL); gMessageSystem->setHandlerFuncFast(_PREHASH_UseCircuitCode, LLMessageSystem::processUseCircuitCode, (void**)responder); gMessageSystem->setHandlerFuncFast(_PREHASH_PacketAck, process_packet_ack, NULL); //gMessageSystem->setHandlerFuncFast(_PREHASH_LogMessages, process_log_messages, NULL); gMessageSystem->setHandlerFuncFast(_PREHASH_CreateTrustedCircuit, process_create_trusted_circuit, NULL); gMessageSystem->setHandlerFuncFast(_PREHASH_DenyTrustedCircuit, process_deny_trusted_circuit, NULL); gMessageSystem->setHandlerFunc("Error", LLMessageSystem::processError); // We can hand this to the null_message_callback since it is a // trusted message, so it will automatically be denied if it isn't // trusted and ignored if it is -- exactly what we want. gMessageSystem->setHandlerFunc( "RequestTrustedCircuit", null_message_callback, NULL); // Initialize the transfer manager gTransferManager.init(); return TRUE; } void LLMessageSystem::startLogging() { mVerboseLog = TRUE; std::ostringstream str; str << "START MESSAGE LOG" << std::endl; str << "Legend:" << std::endl; str << "\t<-\tincoming message" <\toutgoing message" << std::endl; str << " <> host size zero id name"; LL_INFOS("Messaging") << str.str() << LL_ENDL; } void LLMessageSystem::stopLogging() { if(mVerboseLog) { mVerboseLog = FALSE; LL_INFOS("Messaging") << "END MESSAGE LOG" << LL_ENDL; } } void LLMessageSystem::summarizeLogs(std::ostream& str) { std::string buffer; std::string tmp_str; F32 run_time = mMessageSystemTimer.getElapsedTimeF32(); str << "START MESSAGE LOG SUMMARY" << std::endl; buffer = llformat( "Run time: %12.3f seconds", run_time); // Incoming str << buffer << std::endl << "Incoming:" << std::endl; tmp_str = U64_to_str(mTotalBytesIn); buffer = llformat( "Total bytes received: %20s (%5.2f kbits per second)", tmp_str.c_str(), ((F32)mTotalBytesIn * 0.008f) / run_time); str << buffer << std::endl; tmp_str = U64_to_str(mPacketsIn); buffer = llformat( "Total packets received: %20s (%5.2f packets per second)", tmp_str.c_str(), ((F32) mPacketsIn / run_time)); str << buffer << std::endl; buffer = llformat( "Average packet size: %20.0f bytes", (F32)mTotalBytesIn / (F32)mPacketsIn); str << buffer << std::endl; tmp_str = U64_to_str(mReliablePacketsIn); buffer = llformat( "Total reliable packets: %20s (%5.2f%%)", tmp_str.c_str(), 100.f * ((F32) mReliablePacketsIn)/((F32) mPacketsIn + 1)); str << buffer << std::endl; tmp_str = U64_to_str(mCompressedPacketsIn); buffer = llformat( "Total compressed packets: %20s (%5.2f%%)", tmp_str.c_str(), 100.f * ((F32) mCompressedPacketsIn)/((F32) mPacketsIn + 1)); str << buffer << std::endl; S64 savings = mUncompressedBytesIn - mCompressedBytesIn; tmp_str = U64_to_str(savings); buffer = llformat( "Total compression savings: %20s bytes", tmp_str.c_str()); str << buffer << std::endl; tmp_str = U64_to_str(savings/(mCompressedPacketsIn +1)); buffer = llformat( "Avg comp packet savings: %20s (%5.2f : 1)", tmp_str.c_str(), ((F32) mUncompressedBytesIn)/((F32) mCompressedBytesIn+1)); str << buffer << std::endl; tmp_str = U64_to_str(savings/(mPacketsIn+1)); buffer = llformat( "Avg overall comp savings: %20s (%5.2f : 1)", tmp_str.c_str(), ((F32) mTotalBytesIn + (F32) savings)/((F32) mTotalBytesIn + 1.f)); // Outgoing str << buffer << std::endl << std::endl << "Outgoing:" << std::endl; tmp_str = U64_to_str(mTotalBytesOut); buffer = llformat( "Total bytes sent: %20s (%5.2f kbits per second)", tmp_str.c_str(), ((F32)mTotalBytesOut * 0.008f) / run_time ); str << buffer << std::endl; tmp_str = U64_to_str(mPacketsOut); buffer = llformat( "Total packets sent: %20s (%5.2f packets per second)", tmp_str.c_str(), ((F32)mPacketsOut / run_time)); str << buffer << std::endl; buffer = llformat( "Average packet size: %20.0f bytes", (F32)mTotalBytesOut / (F32)mPacketsOut); str << buffer << std::endl; tmp_str = U64_to_str(mReliablePacketsOut); buffer = llformat( "Total reliable packets: %20s (%5.2f%%)", tmp_str.c_str(), 100.f * ((F32) mReliablePacketsOut)/((F32) mPacketsOut + 1)); str << buffer << std::endl; tmp_str = U64_to_str(mCompressedPacketsOut); buffer = llformat( "Total compressed packets: %20s (%5.2f%%)", tmp_str.c_str(), 100.f * ((F32) mCompressedPacketsOut)/((F32) mPacketsOut + 1)); str << buffer << std::endl; savings = mUncompressedBytesOut - mCompressedBytesOut; tmp_str = U64_to_str(savings); buffer = llformat( "Total compression savings: %20s bytes", tmp_str.c_str()); str << buffer << std::endl; tmp_str = U64_to_str(savings/(mCompressedPacketsOut +1)); buffer = llformat( "Avg comp packet savings: %20s (%5.2f : 1)", tmp_str.c_str(), ((F32) mUncompressedBytesOut)/((F32) mCompressedBytesOut+1)); str << buffer << std::endl; tmp_str = U64_to_str(savings/(mPacketsOut+1)); buffer = llformat( "Avg overall comp savings: %20s (%5.2f : 1)", tmp_str.c_str(), ((F32) mTotalBytesOut + (F32) savings)/((F32) mTotalBytesOut + 1.f)); str << buffer << std::endl << std::endl; buffer = llformat( "SendPacket failures: %20d", mSendPacketFailureCount); str << buffer << std::endl; buffer = llformat( "Dropped packets: %20d", mDroppedPackets); str << buffer << std::endl; buffer = llformat( "Resent packets: %20d", mResentPackets); str << buffer << std::endl; buffer = llformat( "Failed reliable resends: %20d", mFailedResendPackets); str << buffer << std::endl; buffer = llformat( "Off-circuit rejected packets: %17d", mOffCircuitPackets); str << buffer << std::endl; buffer = llformat( "On-circuit invalid packets: %17d", mInvalidOnCircuitPackets); str << buffer << std::endl << std::endl; str << "Decoding: " << std::endl; buffer = llformat( "%35s%10s%10s%10s%10s", "Message", "Count", "Time", "Max", "Avg"); str << buffer << std:: endl; F32 avg; for (message_template_name_map_t::const_iterator iter = mMessageTemplates.begin(), end = mMessageTemplates.end(); iter != end; iter++) { const LLMessageTemplate* mt = iter->second; if(mt->mTotalDecoded > 0) { avg = mt->mTotalDecodeTime / (F32)mt->mTotalDecoded; buffer = llformat( "%35s%10u%10f%10f%10f", mt->mName, mt->mTotalDecoded, mt->mTotalDecodeTime, mt->mMaxDecodeTimePerMsg, avg); str << buffer << std::endl; } } str << "END MESSAGE LOG SUMMARY" << std::endl; } void end_messaging_system(bool print_summary) { gTransferManager.cleanup(); LLTransferTargetVFile::updateQueue(true); // shutdown LLTransferTargetVFile if (gMessageSystem) { gMessageSystem->stopLogging(); if (print_summary) { std::ostringstream str; gMessageSystem->summarizeLogs(str); LL_INFOS("Messaging") << str.str().c_str() << LL_ENDL; } delete gMessageSystem; gMessageSystem = NULL; } } void LLMessageSystem::resetReceiveCounts() { mNumMessageCounts = 0; for (message_template_name_map_t::iterator iter = mMessageTemplates.begin(), end = mMessageTemplates.end(); iter != end; iter++) { LLMessageTemplate* mt = iter->second; mt->mDecodeTimeThisFrame = 0.f; } } void LLMessageSystem::dumpReceiveCounts() { LLMessageTemplate *mt; for (message_template_name_map_t::iterator iter = mMessageTemplates.begin(), end = mMessageTemplates.end(); iter != end; iter++) { LLMessageTemplate* mt = iter->second; mt->mReceiveCount = 0; mt->mReceiveBytes = 0; mt->mReceiveInvalid = 0; } S32 i; for (i = 0; i < mNumMessageCounts; i++) { mt = get_ptr_in_map(mMessageNumbers,mMessageCountList[i].mMessageNum); if (mt) { mt->mReceiveCount++; mt->mReceiveBytes += mMessageCountList[i].mMessageBytes; if (mMessageCountList[i].mInvalid) { mt->mReceiveInvalid++; } } } if(mNumMessageCounts > 0) { LL_DEBUGS("Messaging") << "Dump: " << mNumMessageCounts << " messages processed in " << mReceiveTime << " seconds" << LL_ENDL; for (message_template_name_map_t::const_iterator iter = mMessageTemplates.begin(), end = mMessageTemplates.end(); iter != end; iter++) { const LLMessageTemplate* mt = iter->second; if (mt->mReceiveCount > 0) { LL_INFOS("Messaging") << "Num: " << std::setw(3) << mt->mReceiveCount << " Bytes: " << std::setw(6) << mt->mReceiveBytes << " Invalid: " << std::setw(3) << mt->mReceiveInvalid << " " << mt->mName << " " << llround(100 * mt->mDecodeTimeThisFrame / mReceiveTime) << "%" << LL_ENDL; } } } } BOOL LLMessageSystem::isClear() const { return mMessageBuilder->isClear(); } S32 LLMessageSystem::flush(const LLHost &host) { if (mMessageBuilder->getMessageSize()) { S32 sentbytes = sendMessage(host); clearMessage(); return sentbytes; } else { return 0; } } U32 LLMessageSystem::getListenPort( void ) const { return mPort; } // TODO: babbage: remove this horror! S32 LLMessageSystem::zeroCodeAdjustCurrentSendTotal() { if(mMessageBuilder == mLLSDMessageBuilder) { // babbage: don't compress LLSD messages, so delta is 0 return 0; } if (! mMessageBuilder->isBuilt()) { mSendSize = mMessageBuilder->buildMessage( mSendBuffer, MAX_BUFFER_SIZE, 0); } // TODO: babbage: remove this horror mMessageBuilder->setBuilt(FALSE); S32 count = mSendSize; S32 net_gain = 0; U8 num_zeroes = 0; U8 *inptr = (U8 *)mSendBuffer; // skip the packet id field for (U32 ii = 0; ii < LL_PACKET_ID_SIZE; ++ii) { count--; inptr++; } // don't actually build, just test // sequential zero bytes are encoded as 0 [U8 count] // with 0 0 [count] representing wrap (>256 zeroes) while (count--) { if (!(*inptr)) // in a zero count { if (num_zeroes) { if (++num_zeroes > 254) { num_zeroes = 0; } net_gain--; // subseqent zeroes save one } else { net_gain++; // starting a zero count adds one num_zeroes = 1; } inptr++; } else { if (num_zeroes) { num_zeroes = 0; } inptr++; } } if (net_gain < 0) { return net_gain; } else { return 0; } } S32 LLMessageSystem::zeroCodeExpand(U8** data, S32* data_size) { if ((*data_size ) < LL_MINIMUM_VALID_PACKET_SIZE) { LL_WARNS("Messaging") << "zeroCodeExpand() called with data_size of " << *data_size << LL_ENDL; } mTotalBytesIn += *data_size; // if we're not zero-coded, simply return. if (!(*data[0] & LL_ZERO_CODE_FLAG)) { return 0; } S32 in_size = *data_size; mCompressedPacketsIn++; mCompressedBytesIn += *data_size; *data[0] &= (~LL_ZERO_CODE_FLAG); S32 count = (*data_size); U8 *inptr = (U8 *)*data; U8 *outptr = (U8 *)mEncodedRecvBuffer; // skip the packet id field for (U32 ii = 0; ii < LL_PACKET_ID_SIZE; ++ii) { count--; *outptr++ = *inptr++; } // reconstruct encoded packet, keeping track of net size gain // sequential zero bytes are encoded as 0 [U8 count] // with 0 0 [count] representing wrap (>256 zeroes) while (count--) { if (outptr > (&mEncodedRecvBuffer[MAX_BUFFER_SIZE-1])) { LL_WARNS("Messaging") << "attempt to write past reasonable encoded buffer size 1" << LL_ENDL; callExceptionFunc(MX_WROTE_PAST_BUFFER_SIZE); outptr = mEncodedRecvBuffer; break; } if (!((*outptr++ = *inptr++))) { while (((count--)) && (!(*inptr))) { *outptr++ = *inptr++; if (outptr > (&mEncodedRecvBuffer[MAX_BUFFER_SIZE-256])) { LL_WARNS("Messaging") << "attempt to write past reasonable encoded buffer size 2" << LL_ENDL; callExceptionFunc(MX_WROTE_PAST_BUFFER_SIZE); outptr = mEncodedRecvBuffer; count = -1; break; } memset(outptr,0,255); outptr += 255; } if (count < 0) { break; } else { if (outptr > (&mEncodedRecvBuffer[MAX_BUFFER_SIZE-(*inptr)])) { LL_WARNS("Messaging") << "attempt to write past reasonable encoded buffer size 3" << LL_ENDL; callExceptionFunc(MX_WROTE_PAST_BUFFER_SIZE); outptr = mEncodedRecvBuffer; } memset(outptr,0,(*inptr) - 1); outptr += ((*inptr) - 1); inptr++; } } } *data = mEncodedRecvBuffer; *data_size = (S32)(outptr - mEncodedRecvBuffer); mUncompressedBytesIn += *data_size; return(in_size); } void LLMessageSystem::addTemplate(LLMessageTemplate *templatep) { if (mMessageTemplates.count(templatep->mName) > 0) { LL_ERRS("Messaging") << templatep->mName << " already used as a template name!" << LL_ENDL; } mMessageTemplates[templatep->mName] = templatep; mMessageNumbers[templatep->mMessageNumber] = templatep; } void LLMessageSystem::setHandlerFuncFast(const char *name, void (*handler_func)(LLMessageSystem *msgsystem, void **user_data), void **user_data) { LLMessageTemplate* msgtemplate = get_ptr_in_map(mMessageTemplates, name); if (msgtemplate) { msgtemplate->setHandlerFunc(handler_func, user_data); } else { LL_ERRS("Messaging") << name << " is not a known message name!" << LL_ENDL; } } bool LLMessageSystem::callHandler(const char *name, bool trustedSource, LLMessageSystem* msg) { name = LLMessageStringTable::getInstance()->getString(name); message_template_name_map_t::const_iterator iter; iter = mMessageTemplates.find(name); if(iter == mMessageTemplates.end()) { LL_WARNS("Messaging") << "LLMessageSystem::callHandler: unknown message " << name << LL_ENDL; return false; } const LLMessageTemplate* msg_template = iter->second; if (msg_template->isBanned(trustedSource)) { LL_WARNS("Messaging") << "LLMessageSystem::callHandler: banned message " << name << " from " << (trustedSource ? "trusted " : "untrusted ") << "source" << LL_ENDL; return false; } return msg_template->callHandlerFunc(msg); } void LLMessageSystem::setExceptionFunc(EMessageException e, msg_exception_callback func, void* data) { callbacks_t::iterator it = mExceptionCallbacks.find(e); if(it != mExceptionCallbacks.end()) { mExceptionCallbacks.erase(it); } if(func) { mExceptionCallbacks.insert(callbacks_t::value_type(e, exception_t(func, data))); } } BOOL LLMessageSystem::callExceptionFunc(EMessageException exception) { callbacks_t::iterator it = mExceptionCallbacks.find(exception); if(it != mExceptionCallbacks.end()) { ((*it).second.first)(this, (*it).second.second,exception); return TRUE; } return FALSE; } void LLMessageSystem::setTimingFunc(msg_timing_callback func, void* data) { mTimingCallback = func; mTimingCallbackData = data; } BOOL LLMessageSystem::isCircuitCodeKnown(U32 code) const { if(mCircuitCodes.find(code) == mCircuitCodes.end()) return FALSE; return TRUE; } BOOL LLMessageSystem::isMessageFast(const char *msg) { return msg == mMessageReader->getMessageName(); } char* LLMessageSystem::getMessageName() { return const_cast(mMessageReader->getMessageName()); } const LLUUID& LLMessageSystem::getSenderID() const { LLCircuitData *cdp = mCircuitInfo.findCircuit(mLastSender); if (cdp) { return (cdp->mRemoteID); } return LLUUID::null; } const LLUUID& LLMessageSystem::getSenderSessionID() const { LLCircuitData *cdp = mCircuitInfo.findCircuit(mLastSender); if (cdp) { return (cdp->mRemoteSessionID); } return LLUUID::null; } bool LLMessageSystem::generateDigestForNumberAndUUIDs( char* digest, const U32 number, const LLUUID& id1, const LLUUID& id2) const { // *NOTE: This method is needlessly inefficient. Instead of // calling LLUUID::asString, it should just call // LLUUID::toString(). const char *colon = ":"; char tbuf[16]; /* Flawfinder: ignore */ LLMD5 d; std::string id1string = id1.asString(); std::string id2string = id2.asString(); std::string shared_secret = get_shared_secret(); unsigned char * secret = (unsigned char*)shared_secret.c_str(); unsigned char * id1str = (unsigned char*)id1string.c_str(); unsigned char * id2str = (unsigned char*)id2string.c_str(); memset(digest, 0, MD5HEX_STR_SIZE); if( secret != NULL) { d.update(secret, (U32)strlen((char *) secret)); /* Flawfinder: ignore */ } d.update((const unsigned char *) colon, (U32)strlen(colon)); /* Flawfinder: ignore */ snprintf(tbuf, sizeof(tbuf),"%i", number); /* Flawfinder: ignore */ d.update((unsigned char *) tbuf, (U32)strlen(tbuf)); /* Flawfinder: ignore */ d.update((const unsigned char *) colon, (U32)strlen(colon)); /* Flawfinder: ignore */ if( (char*) id1str != NULL) { d.update(id1str, (U32)strlen((char *) id1str)); /* Flawfinder: ignore */ } d.update((const unsigned char *) colon, (U32)strlen(colon)); /* Flawfinder: ignore */ if( (char*) id2str != NULL) { d.update(id2str, (U32)strlen((char *) id2str)); /* Flawfinder: ignore */ } d.finalize(); d.hex_digest(digest); digest[MD5HEX_STR_SIZE - 1] = '\0'; return true; } bool LLMessageSystem::generateDigestForWindowAndUUIDs(char* digest, const S32 window, const LLUUID &id1, const LLUUID &id2) const { if(0 == window) return false; std::string shared_secret = get_shared_secret(); if(shared_secret.empty()) { LL_ERRS("Messaging") << "Trying to generate complex digest on a machine without a shared secret!" << LL_ENDL; } U32 now = (U32)time(NULL); now /= window; bool result = generateDigestForNumberAndUUIDs(digest, now, id1, id2); return result; } bool LLMessageSystem::isMatchingDigestForWindowAndUUIDs(const char* digest, const S32 window, const LLUUID &id1, const LLUUID &id2) const { if(0 == window) return false; std::string shared_secret = get_shared_secret(); if(shared_secret.empty()) { LL_ERRS("Messaging") << "Trying to compare complex digests on a machine without a shared secret!" << LL_ENDL; } char our_digest[MD5HEX_STR_SIZE]; /* Flawfinder: ignore */ U32 now = (U32)time(NULL); now /= window; // Check 1 window ago, now, and one window from now to catch edge // conditions. Process them as current window, one window ago, and // one window in the future to catch the edges. const S32 WINDOW_BIN_COUNT = 3; U32 window_bin[WINDOW_BIN_COUNT]; window_bin[0] = now; window_bin[1] = now - 1; window_bin[2] = now + 1; for(S32 i = 0; i < WINDOW_BIN_COUNT; ++i) { generateDigestForNumberAndUUIDs(our_digest, window_bin[i], id2, id1); if(0 == strncmp(digest, our_digest, MD5HEX_STR_BYTES)) { return true; } } return false; } bool LLMessageSystem::generateDigestForNumber(char* digest, const U32 number) const { memset(digest, 0, MD5HEX_STR_SIZE); LLMD5 d; std::string shared_secret = get_shared_secret(); d = LLMD5((const unsigned char *)shared_secret.c_str(), number); d.hex_digest(digest); digest[MD5HEX_STR_SIZE - 1] = '\0'; return true; } bool LLMessageSystem::generateDigestForWindow(char* digest, const S32 window) const { if(0 == window) return false; std::string shared_secret = get_shared_secret(); if(shared_secret.empty()) { LL_ERRS("Messaging") << "Trying to generate simple digest on a machine without a shared secret!" << LL_ENDL; } U32 now = (U32)time(NULL); now /= window; bool result = generateDigestForNumber(digest, now); return result; } bool LLMessageSystem::isMatchingDigestForWindow(const char* digest, S32 const window) const { if(0 == window) return false; std::string shared_secret = get_shared_secret(); if(shared_secret.empty()) { LL_ERRS("Messaging") << "Trying to compare simple digests on a machine without a shared secret!" << LL_ENDL; } char our_digest[MD5HEX_STR_SIZE]; /* Flawfinder: ignore */ U32 now = (S32)time(NULL); now /= window; // Check 1 window ago, now, and one window from now to catch edge // conditions. Process them as current window, one window ago, and // one window in the future to catch the edges. const S32 WINDOW_BIN_COUNT = 3; U32 window_bin[WINDOW_BIN_COUNT]; window_bin[0] = now; window_bin[1] = now - 1; window_bin[2] = now + 1; for(S32 i = 0; i < WINDOW_BIN_COUNT; ++i) { generateDigestForNumber(our_digest, window_bin[i]); if(0 == strncmp(digest, our_digest, MD5HEX_STR_BYTES)) { return true; } } return false; } void LLMessageSystem::sendCreateTrustedCircuit(const LLHost &host, const LLUUID & id1, const LLUUID & id2) { std::string shared_secret = get_shared_secret(); if(shared_secret.empty()) return; char digest[MD5HEX_STR_SIZE]; /* Flawfinder: ignore */ if (id1.isNull()) { LL_WARNS("Messaging") << "Can't send CreateTrustedCircuit to " << host << " because we don't have the local end point ID" << LL_ENDL; return; } if (id2.isNull()) { LL_WARNS("Messaging") << "Can't send CreateTrustedCircuit to " << host << " because we don't have the remote end point ID" << LL_ENDL; return; } generateDigestForWindowAndUUIDs(digest, TRUST_TIME_WINDOW, id1, id2); newMessageFast(_PREHASH_CreateTrustedCircuit); nextBlockFast(_PREHASH_DataBlock); addUUIDFast(_PREHASH_EndPointID, id1); addBinaryDataFast(_PREHASH_Digest, digest, MD5HEX_STR_BYTES); LL_INFOS("Messaging") << "xmitting digest: " << digest << " Host: " << host << LL_ENDL; sendMessage(host); } void LLMessageSystem::sendDenyTrustedCircuit(const LLHost &host) { mDenyTrustedCircuitSet.insert(host); } void LLMessageSystem::reallySendDenyTrustedCircuit(const LLHost &host) { LLCircuitData *cdp = mCircuitInfo.findCircuit(host); if (!cdp) { LL_WARNS("Messaging") << "Not sending DenyTrustedCircuit to host without a circuit." << LL_ENDL; return; } LL_INFOS("Messaging") << "Sending DenyTrustedCircuit to " << host << LL_ENDL; newMessageFast(_PREHASH_DenyTrustedCircuit); nextBlockFast(_PREHASH_DataBlock); addUUIDFast(_PREHASH_EndPointID, cdp->getLocalEndPointID()); sendMessage(host); } void null_message_callback(LLMessageSystem *msg, void **data) { // Nothing should ever go here, but we use this to register messages // that we are expecting to see (and spinning on) at startup. return; } // Try to establish a bidirectional trust metric by pinging a host until it's // up, and then sending auth messages. void LLMessageSystem::establishBidirectionalTrust(const LLHost &host, S64 frame_count ) { std::string shared_secret = get_shared_secret(); if(shared_secret.empty()) { LL_ERRS("Messaging") << "Trying to establish bidirectional trust on a machine without a shared secret!" << LL_ENDL; } LLTimer timeout; timeout.setTimerExpirySec(20.0); setHandlerFuncFast(_PREHASH_StartPingCheck, null_message_callback, NULL); setHandlerFuncFast(_PREHASH_CompletePingCheck, null_message_callback, NULL); while (! timeout.hasExpired()) { newMessageFast(_PREHASH_StartPingCheck); nextBlockFast(_PREHASH_PingID); addU8Fast(_PREHASH_PingID, 0); addU32Fast(_PREHASH_OldestUnacked, 0); sendMessage(host); if (checkMessages( frame_count )) { if (isMessageFast(_PREHASH_CompletePingCheck) && (getSender() == host)) { break; } } processAcks(); ms_sleep(1); } // Send a request, a deny, and give the host 2 seconds to complete // the trust handshake. newMessage("RequestTrustedCircuit"); sendMessage(host); reallySendDenyTrustedCircuit(host); setHandlerFuncFast(_PREHASH_StartPingCheck, process_start_ping_check, NULL); setHandlerFuncFast(_PREHASH_CompletePingCheck, process_complete_ping_check, NULL); timeout.setTimerExpirySec(2.0); LLCircuitData* cdp = NULL; while(!timeout.hasExpired()) { cdp = mCircuitInfo.findCircuit(host); if(!cdp) break; // no circuit anymore, no point continuing. if(cdp->getTrusted()) break; // circuit is trusted. checkMessages(frame_count); processAcks(); ms_sleep(1); } } void LLMessageSystem::dumpPacketToLog() { LL_WARNS("Messaging") << "Packet Dump from:" << mPacketRing.getLastSender() << LL_ENDL; LL_WARNS("Messaging") << "Packet Size:" << mTrueReceiveSize << LL_ENDL; char line_buffer[256]; /* Flawfinder: ignore */ S32 i; S32 cur_line_pos = 0; S32 cur_line = 0; for (i = 0; i < mTrueReceiveSize; i++) { S32 offset = cur_line_pos * 3; snprintf(line_buffer + offset, sizeof(line_buffer) - offset, "%02x ", mTrueReceiveBuffer[i]); /* Flawfinder: ignore */ cur_line_pos++; if (cur_line_pos >= 16) { cur_line_pos = 0; LL_WARNS("Messaging") << "PD:" << cur_line << "PD:" << line_buffer << LL_ENDL; cur_line++; } } if (cur_line_pos) { LL_WARNS("Messaging") << "PD:" << cur_line << "PD:" << line_buffer << LL_ENDL; } } //static U64 LLMessageSystem::getMessageTimeUsecs(const BOOL update) { if (gMessageSystem) { if (update) { gMessageSystem->mCurrentMessageTimeSeconds = totalTime()*SEC_PER_USEC; } return (U64)(gMessageSystem->mCurrentMessageTimeSeconds * USEC_PER_SEC); } else { return totalTime(); } } //static F64 LLMessageSystem::getMessageTimeSeconds(const BOOL update) { if (gMessageSystem) { if (update) { gMessageSystem->mCurrentMessageTimeSeconds = totalTime()*SEC_PER_USEC; } return gMessageSystem->mCurrentMessageTimeSeconds; } else { return totalTime()*SEC_PER_USEC; } } std::string get_shared_secret() { static const std::string SHARED_SECRET_KEY("shared_secret"); if(g_shared_secret.empty()) { LLApp* app = LLApp::instance(); if(app) return app->getOption(SHARED_SECRET_KEY); } return g_shared_secret; } typedef std::map BuilderMap; void LLMessageSystem::newMessageFast(const char *name) { LLMessageConfig::Flavor message_flavor = LLMessageConfig::getMessageFlavor(name); LLMessageConfig::Flavor server_flavor = LLMessageConfig::getServerDefaultFlavor(); if(message_flavor == LLMessageConfig::TEMPLATE_FLAVOR) { mMessageBuilder = mTemplateMessageBuilder; } else if (message_flavor == LLMessageConfig::LLSD_FLAVOR) { mMessageBuilder = mLLSDMessageBuilder; } // NO_FLAVOR else { if (server_flavor == LLMessageConfig::LLSD_FLAVOR) { mMessageBuilder = mLLSDMessageBuilder; } // TEMPLATE_FLAVOR or NO_FLAVOR else { mMessageBuilder = mTemplateMessageBuilder; } } mSendReliable = FALSE; mMessageBuilder->newMessage(name); } void LLMessageSystem::newMessage(const char *name) { newMessageFast(LLMessageStringTable::getInstance()->getString(name)); } void LLMessageSystem::addBinaryDataFast(const char *varname, const void *data, S32 size) { mMessageBuilder->addBinaryData(varname, data, size); } void LLMessageSystem::addBinaryData(const char *varname, const void *data, S32 size) { mMessageBuilder->addBinaryData(LLMessageStringTable::getInstance()->getString(varname),data, size); } void LLMessageSystem::addS8Fast(const char *varname, S8 v) { mMessageBuilder->addS8(varname, v); } void LLMessageSystem::addS8(const char *varname, S8 v) { mMessageBuilder->addS8(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addU8Fast(const char *varname, U8 v) { mMessageBuilder->addU8(varname, v); } void LLMessageSystem::addU8(const char *varname, U8 v) { mMessageBuilder->addU8(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addS16Fast(const char *varname, S16 v) { mMessageBuilder->addS16(varname, v); } void LLMessageSystem::addS16(const char *varname, S16 v) { mMessageBuilder->addS16(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addU16Fast(const char *varname, U16 v) { mMessageBuilder->addU16(varname, v); } void LLMessageSystem::addU16(const char *varname, U16 v) { mMessageBuilder->addU16(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addF32Fast(const char *varname, F32 v) { mMessageBuilder->addF32(varname, v); } void LLMessageSystem::addF32(const char *varname, F32 v) { mMessageBuilder->addF32(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addS32Fast(const char *varname, S32 v) { mMessageBuilder->addS32(varname, v); } void LLMessageSystem::addS32(const char *varname, S32 v) { mMessageBuilder->addS32(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addU32Fast(const char *varname, U32 v) { mMessageBuilder->addU32(varname, v); } void LLMessageSystem::addU32(const char *varname, U32 v) { mMessageBuilder->addU32(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addU64Fast(const char *varname, U64 v) { mMessageBuilder->addU64(varname, v); } void LLMessageSystem::addU64(const char *varname, U64 v) { mMessageBuilder->addU64(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addF64Fast(const char *varname, F64 v) { mMessageBuilder->addF64(varname, v); } void LLMessageSystem::addF64(const char *varname, F64 v) { mMessageBuilder->addF64(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addIPAddrFast(const char *varname, U32 v) { mMessageBuilder->addIPAddr(varname, v); } void LLMessageSystem::addIPAddr(const char *varname, U32 v) { mMessageBuilder->addIPAddr(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addIPPortFast(const char *varname, U16 v) { mMessageBuilder->addIPPort(varname, v); } void LLMessageSystem::addIPPort(const char *varname, U16 v) { mMessageBuilder->addIPPort(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addBOOLFast(const char* varname, BOOL v) { mMessageBuilder->addBOOL(varname, v); } void LLMessageSystem::addBOOL(const char* varname, BOOL v) { mMessageBuilder->addBOOL(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addStringFast(const char* varname, const char* v) { mMessageBuilder->addString(varname, v); } void LLMessageSystem::addString(const char* varname, const char* v) { mMessageBuilder->addString(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addStringFast(const char* varname, const std::string& v) { mMessageBuilder->addString(varname, v); } void LLMessageSystem::addString(const char* varname, const std::string& v) { mMessageBuilder->addString(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addVector3Fast(const char *varname, const LLVector3& v) { mMessageBuilder->addVector3(varname, v); } void LLMessageSystem::addVector3(const char *varname, const LLVector3& v) { mMessageBuilder->addVector3(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addVector4Fast(const char *varname, const LLVector4& v) { mMessageBuilder->addVector4(varname, v); } void LLMessageSystem::addVector4(const char *varname, const LLVector4& v) { mMessageBuilder->addVector4(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addVector3dFast(const char *varname, const LLVector3d& v) { mMessageBuilder->addVector3d(varname, v); } void LLMessageSystem::addVector3d(const char *varname, const LLVector3d& v) { mMessageBuilder->addVector3d(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addQuatFast(const char *varname, const LLQuaternion& v) { mMessageBuilder->addQuat(varname, v); } void LLMessageSystem::addQuat(const char *varname, const LLQuaternion& v) { mMessageBuilder->addQuat(LLMessageStringTable::getInstance()->getString(varname), v); } void LLMessageSystem::addUUIDFast(const char *varname, const LLUUID& v) { mMessageBuilder->addUUID(varname, v); } void LLMessageSystem::addUUID(const char *varname, const LLUUID& v) { mMessageBuilder->addUUID(LLMessageStringTable::getInstance()->getString(varname), v); } S32 LLMessageSystem::getCurrentSendTotal() const { return mMessageBuilder->getMessageSize(); } void LLMessageSystem::getS8Fast(const char *block, const char *var, S8 &u, S32 blocknum) { mMessageReader->getS8(block, var, u, blocknum); } void LLMessageSystem::getS8(const char *block, const char *var, S8 &u, S32 blocknum) { getS8Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), u, blocknum); } void LLMessageSystem::getU8Fast(const char *block, const char *var, U8 &u, S32 blocknum) { mMessageReader->getU8(block, var, u, blocknum); } void LLMessageSystem::getU8(const char *block, const char *var, U8 &u, S32 blocknum) { getU8Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), u, blocknum); } void LLMessageSystem::getBOOLFast(const char *block, const char *var, BOOL &b, S32 blocknum) { mMessageReader->getBOOL(block, var, b, blocknum); } void LLMessageSystem::getBOOL(const char *block, const char *var, BOOL &b, S32 blocknum) { getBOOLFast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), b, blocknum); } void LLMessageSystem::getS16Fast(const char *block, const char *var, S16 &d, S32 blocknum) { mMessageReader->getS16(block, var, d, blocknum); } void LLMessageSystem::getS16(const char *block, const char *var, S16 &d, S32 blocknum) { getS16Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), d, blocknum); } void LLMessageSystem::getU16Fast(const char *block, const char *var, U16 &d, S32 blocknum) { mMessageReader->getU16(block, var, d, blocknum); } void LLMessageSystem::getU16(const char *block, const char *var, U16 &d, S32 blocknum) { getU16Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), d, blocknum); } void LLMessageSystem::getS32Fast(const char *block, const char *var, S32 &d, S32 blocknum) { mMessageReader->getS32(block, var, d, blocknum); } void LLMessageSystem::getS32(const char *block, const char *var, S32 &d, S32 blocknum) { getS32Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), d, blocknum); } void LLMessageSystem::getU32Fast(const char *block, const char *var, U32 &d, S32 blocknum) { mMessageReader->getU32(block, var, d, blocknum); } void LLMessageSystem::getU32(const char *block, const char *var, U32 &d, S32 blocknum) { getU32Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), d, blocknum); } void LLMessageSystem::getU64Fast(const char *block, const char *var, U64 &d, S32 blocknum) { mMessageReader->getU64(block, var, d, blocknum); } void LLMessageSystem::getU64(const char *block, const char *var, U64 &d, S32 blocknum) { getU64Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), d, blocknum); } void LLMessageSystem::getBinaryDataFast(const char *blockname, const char *varname, void *datap, S32 size, S32 blocknum, S32 max_size) { mMessageReader->getBinaryData(blockname, varname, datap, size, blocknum, max_size); } void LLMessageSystem::getBinaryData(const char *blockname, const char *varname, void *datap, S32 size, S32 blocknum, S32 max_size) { getBinaryDataFast(LLMessageStringTable::getInstance()->getString(blockname), LLMessageStringTable::getInstance()->getString(varname), datap, size, blocknum, max_size); } void LLMessageSystem::getF32Fast(const char *block, const char *var, F32 &d, S32 blocknum) { mMessageReader->getF32(block, var, d, blocknum); } void LLMessageSystem::getF32(const char *block, const char *var, F32 &d, S32 blocknum) { getF32Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), d, blocknum); } void LLMessageSystem::getF64Fast(const char *block, const char *var, F64 &d, S32 blocknum) { mMessageReader->getF64(block, var, d, blocknum); } void LLMessageSystem::getF64(const char *block, const char *var, F64 &d, S32 blocknum) { getF64Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), d, blocknum); } void LLMessageSystem::getVector3Fast(const char *block, const char *var, LLVector3 &v, S32 blocknum ) { mMessageReader->getVector3(block, var, v, blocknum); } void LLMessageSystem::getVector3(const char *block, const char *var, LLVector3 &v, S32 blocknum ) { getVector3Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), v, blocknum); } void LLMessageSystem::getVector4Fast(const char *block, const char *var, LLVector4 &v, S32 blocknum ) { mMessageReader->getVector4(block, var, v, blocknum); } void LLMessageSystem::getVector4(const char *block, const char *var, LLVector4 &v, S32 blocknum ) { getVector4Fast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), v, blocknum); } void LLMessageSystem::getVector3dFast(const char *block, const char *var, LLVector3d &v, S32 blocknum ) { mMessageReader->getVector3d(block, var, v, blocknum); } void LLMessageSystem::getVector3d(const char *block, const char *var, LLVector3d &v, S32 blocknum ) { getVector3dFast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), v, blocknum); } void LLMessageSystem::getQuatFast(const char *block, const char *var, LLQuaternion &q, S32 blocknum ) { mMessageReader->getQuat(block, var, q, blocknum); } void LLMessageSystem::getQuat(const char *block, const char *var, LLQuaternion &q, S32 blocknum) { getQuatFast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), q, blocknum); } void LLMessageSystem::getUUIDFast(const char *block, const char *var, LLUUID &u, S32 blocknum ) { mMessageReader->getUUID(block, var, u, blocknum); } void LLMessageSystem::getUUID(const char *block, const char *var, LLUUID &u, S32 blocknum ) { getUUIDFast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), u, blocknum); } void LLMessageSystem::getIPAddrFast(const char *block, const char *var, U32 &u, S32 blocknum) { mMessageReader->getIPAddr(block, var, u, blocknum); } void LLMessageSystem::getIPAddr(const char *block, const char *var, U32 &u, S32 blocknum) { getIPAddrFast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), u, blocknum); } void LLMessageSystem::getIPPortFast(const char *block, const char *var, U16 &u, S32 blocknum) { mMessageReader->getIPPort(block, var, u, blocknum); } void LLMessageSystem::getIPPort(const char *block, const char *var, U16 &u, S32 blocknum) { getIPPortFast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), u, blocknum); } void LLMessageSystem::getStringFast(const char *block, const char *var, S32 buffer_size, char *s, S32 blocknum) { if(buffer_size <= 0) { LL_WARNS("Messaging") << "buffer_size <= 0" << LL_ENDL; } mMessageReader->getString(block, var, buffer_size, s, blocknum); } void LLMessageSystem::getString(const char *block, const char *var, S32 buffer_size, char *s, S32 blocknum ) { getStringFast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), buffer_size, s, blocknum); } void LLMessageSystem::getStringFast(const char *block, const char *var, std::string& outstr, S32 blocknum) { mMessageReader->getString(block, var, outstr, blocknum); } void LLMessageSystem::getString(const char *block, const char *var, std::string& outstr, S32 blocknum ) { getStringFast(LLMessageStringTable::getInstance()->getString(block), LLMessageStringTable::getInstance()->getString(var), outstr, blocknum); } BOOL LLMessageSystem::has(const char *blockname) const { return getNumberOfBlocks(blockname) > 0; } S32 LLMessageSystem::getNumberOfBlocksFast(const char *blockname) const { return mMessageReader->getNumberOfBlocks(blockname); } S32 LLMessageSystem::getNumberOfBlocks(const char *blockname) const { return getNumberOfBlocksFast(LLMessageStringTable::getInstance()->getString(blockname)); } S32 LLMessageSystem::getSizeFast(const char *blockname, const char *varname) const { return mMessageReader->getSize(blockname, varname); } S32 LLMessageSystem::getSize(const char *blockname, const char *varname) const { return getSizeFast(LLMessageStringTable::getInstance()->getString(blockname), LLMessageStringTable::getInstance()->getString(varname)); } // size in bytes of variable length data S32 LLMessageSystem::getSizeFast(const char *blockname, S32 blocknum, const char *varname) const { return mMessageReader->getSize(blockname, blocknum, varname); } S32 LLMessageSystem::getSize(const char *blockname, S32 blocknum, const char *varname) const { return getSizeFast(LLMessageStringTable::getInstance()->getString(blockname), blocknum, LLMessageStringTable::getInstance()->getString(varname)); } S32 LLMessageSystem::getReceiveSize() const { return mMessageReader->getMessageSize(); } //static void LLMessageSystem::setTimeDecodes( BOOL b ) { LLMessageReader::setTimeDecodes(b); } //static void LLMessageSystem::setTimeDecodesSpamThreshold( F32 seconds ) { LLMessageReader::setTimeDecodesSpamThreshold(seconds); } // HACK! babbage: return true if message rxed via either UDP or HTTP // TODO: babbage: move gServicePump in to LLMessageSystem? bool LLMessageSystem::checkAllMessages(S64 frame_count, LLPumpIO* http_pump) { if(checkMessages(frame_count)) { return true; } U32 packetsIn = mPacketsIn; http_pump->pump(); http_pump->callback(); return (mPacketsIn - packetsIn) > 0; } void LLMessageSystem::banUdpMessage(const std::string& name) { message_template_name_map_t::iterator itt = mMessageTemplates.find( LLMessageStringTable::getInstance()->getString(name.c_str()) ); if(itt != mMessageTemplates.end()) { itt->second->banUdp(); } else { LL_WARNS() << "Attempted to ban an unknown message: " << name << "." << LL_ENDL; } } const LLHost& LLMessageSystem::getSender() const { return mLastSender; } LLHTTPRegistration > gHTTPRegistrationTrustedMessageWildcard("/trusted-message/");