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message RadioStatus {
	// true if enabled AND successfully applied
	bool airplane_mode = 1;
	// for every LTE network
	repeated CellularStatus cellular_status = 1;
	// later we can add status for every WiFi network
}

message CellularStatus {
	string networkUUID = 1;
    	CellularModem modem = 2;
	OperatingState operatingState = 3;
	string imei = 5;
	// if the last configuration change failed, error message is reported here
	string configError = 10;
	// wwan servise periodically pings configured IP address. 
    	// If the last probing failed, stderr of the probing method is published here.
	string probeError = 11;
}

message CellularModem {
	string model = 1;
	string revision = 2;
}  

enum CellularOperatingState {
	OPERATING_STATE_UNSPECIFIED = 0;
	OPERATING_STATE_ONLINE = 1;
	OPERATING_STATE_RADIO_OFF = 2;  (AKA airplane mode)
	OPERATING_STATE_OFFLINE = 3;
	...
}