Method handleGoodFrame

GSM/GSML1FEC.cpp:892–931

void XCCHL1Decoder::handleGoodFrame()
{
	OBJLOG(DEBUG) <<"XCCHL1Decoder u[]=" << mU;

	{
		ScopedLock lock(mLock);
		// Keep T3109 from timing out.
		mT3109.set();
		// If this is the first good frame of a new transaction,
		// stop T3101 and tell L2 we're alive down here.
		if (mT3101.active()) {
			mT3101.reset();
			if (mUpstream!=NULL) mUpstream->writeLowSide(L2Frame(ESTABLISH));
		}
	}

	// Get the d[] bits, the actual payload in the radio channel.
	// Undo GSM's LSB-first octet encoding.
	OBJLOG(DEBUG) <<"XCCHL1Decoder d[]=" << mD;

	if (mUpstream) {
		// Are we fuzzing ourselves?
		if (random()%100 < gConfig.getNum("Test.GSM.UplinkFuzzingRate")) {
			size_t i = random() % mD.size();
			mD[i] = 1 - mD[i];
			LOG(NOTICE) << "fuzzing input frame, flipped bit " << i;
		}
		// Send all bits to GSMTAP
		if (gConfig.getBool("Control.GSMTAP.GSM")) {
			// FIXME -- This repeatLengh>51 is a bit of a hack.
			gWriteGSMTAP(ARFCN(),TN(),mReadTime.FN(),typeAndOffset(),mMapping.repeatLength()>51,true,mD);
		}
		// Build an L2 frame and pass it up.
		const BitVector2 L2Part(mD.tail(headerOffset()));
		OBJLOG(DEBUG) <<"XCCHL1Decoder L2=" << L2Part;
		mUpstream->writeLowSide(L2Frame(L2Part,DATA));
	} else {
		OBJLOG(ERR) << "XCCHL1Decoder with no uplink connected.";
	}
}

// Get the physical parameters of the burst.
void MSPhysReportInfo::processPhysInfo(const RxBurst &inBurst)