C++ TransactionEntry::L3TI方法代码示例

void Control::MOSMSController(const GSM::L3CMServiceRequest *req, GSM::LogicalChannel *LCH)
{
	assert(req);
	assert(req->serviceType().type() == GSM::L3CMServiceType::ShortMessage);
	assert(LCH);
	assert(LCH->type() != GSM::SACCHType);

	LOG(INFO) << "MOSMS, req " << *req;

	// If we got a TMSI, find the IMSI.
	// Note that this is a copy, not a reference.
	GSM::L3MobileIdentity mobileID = req->mobileID();
	resolveIMSI(mobileID,LCH);

	// Create a transaction record.
	TransactionEntry *transaction = new TransactionEntry(gConfig.getStr("SIP.Proxy.SMS").c_str(),mobileID,LCH);
	gTransactionTable.add(transaction);
	LOG(DEBUG) << "MOSMS: transaction: " << *transaction;

	// See GSM 04.11 Arrow Diagram A5 for the transaction
	// Step 1	MS->Network	CP-DATA containing RP-DATA
	// Step 2	Network->MS	CP-ACK
	// Step 3	Network->MS	CP-DATA containing RP-ACK
	// Step 4	MS->Network	CP-ACK

	// LAPDm operation, from GSM 04.11, Annex F:
	// """
	// Case A: Mobile originating short message transfer, no parallel call:
	// The mobile station side will initiate SAPI 3 establishment by a SABM command
	// on the DCCH after the cipher mode has been set. If no hand over occurs, the
	// SAPI 3 link will stay up until the last CP-ACK is received by the MSC, and
	// the clearing procedure is invoked.
	// """

	// FIXME: check provisioning

	if (gConfig.getNum("GSM.Authentication")||gConfig.getNum("GSM.Encryption")) {
		AuthenticationParameters authParams(mobileID);
		registerIMSI(authParams, LCH);
		authenticate(authParams, LCH);
	}

	// Let the phone know we're going ahead with the transaction.
	if (LCH->isDecrypting()) {
		LOG(INFO) << "Decryption ACTIVE for:" << mobileID << " CMServiceAccept NOT sent, because CipherModeCommand implies it.";
	}
	else {
		LOG(INFO) << "Decryption NOT active for: " << mobileID << " Sending CMServiceAccept";
		LCH->send(GSM::L3CMServiceAccept());
	}


	// Wait for SAP3 to connect.
	// The first read on SAP3 is the ESTABLISH primitive.
	delete getFrameSMS(LCH,GSM::ESTABLISH);

	// Step 1
	// Now get the first message.
	// Should be CP-DATA, containing RP-DATA.
	GSM::L3Frame *CM = getFrameSMS(LCH);
	LOG(DEBUG) << "data from MS " << *CM;
	if (CM->MTI()!=CPMessage::DATA) {
		LOG(NOTICE) << "unexpected SMS CP message with TI=" << CM->MTI();
		delete CM;
		throw UnexpectedMessage();
	}
	unsigned L3TI = CM->TI() | 0x08;
	transaction->L3TI(L3TI);

	// Step 2
	// Respond with CP-ACK.
	// This just means that we got the message.
	LOG(INFO) << "sending CPAck";
	LCH->send(CPAck(L3TI),3);

	// Parse the message in CM and process RP part.
	// This is where we actually parse the message and send it out.
	// FIXME -- We need to set the message ref correctly,
	// even if the parsing fails.
	// The compiler gives a warning here.  Let it.  It will remind someone to fix it.
	unsigned ref;
	bool success = false;
	try {
		CPData data;
		data.parse(*CM);
		LOG(INFO) << "CPData " << data;
		// Transfer out the RPDU -> TPDU -> delivery.
		ref = data.RPDU().reference();
		// This handler invokes higher-layer parsers, too.
		success = handleRPDU(transaction,data.RPDU());
	}
	catch (SMSReadError) {
		LOG(WARNING) << "SMS parsing failed (above L3)";
		// Cause 95, "semantically incorrect message".
		LCH->send(CPData(L3TI,RPError(95,ref)),3);
		delete CM;
		throw UnexpectedMessage();
	}
	catch (GSM::L3ReadError) {
		LOG(WARNING) << "SMS parsing failed (in L3)";
//.........这里部分代码省略.........