Function handleStatus

Control/L3StateMachine.cpp:209–244

TODO: Current this twiddles the RRLP status flags; the whole RRLP server needs to turn into some kind of state machine so we can tell what is going on, and whether a status message might be for RRLP or something else.

// the whole RRLP server needs to turn into some kind of state machine so we can tell what is going on,
// and whether a status message might be for RRLP or something else.
static void handleStatus(const L3Message *l3msg, MMContext *mmchan)
{
	assert(l3msg->MTI() ==  L3RRMessage::RRStatus);

	const L3RRStatus *statusMsg = dynamic_cast<typeof(statusMsg)>(l3msg);
	if (!statusMsg) {
		LOG(ERR) << "Could not cast Layer 3 RR Status message?";
		return;
	}
	int cause = statusMsg->cause().causeValue();

	switch (cause) {
		case 97:
			LOG(INFO) << "Received RR status message with cause: message not implemented";
			// (pat) TODO: Figure out if this is in response to RRLP or not...
			//Rejection code only useful if we're gathering IMEIs
			if (gConfig.getBool("Control.LUR.QueryIMEI")){
				// flag unsupported in SR so we don't waste time on it again
				string imsi = mmchan->mmGetImsi(false);		// with false flag, empty if no imsi
				if (imsi.size() >= 14 && isdigit(imsi[0])) {	// Cheap partial validation
					imsi = string("IMSI") + imsi;
					// TODO : disabled because of upcoming RRLP changes and need to rip out direct SR access
					//if (gSubscriberRegistry.imsiSet(imsi, "RRLPSupported", "0")) {
					//	LOG(INFO) << "SR update problem";
					//}
				}
			}
			return;
		case 98:
			LOG(INFO) << "Received RR status message with cause: message type not compatible with protocol state";
			return;
		default:
			LOG(INFO) << "Received RR Status with"<<LOGHEX(cause);
			return;
	}
}

// code copied from DCCHDispatchMessage() and descendents.
// Return TRUE if handled.