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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 {
	// logicallabel of the physical device
	string deviceName = 1;
	CellularModem modem = 2;
	OperatingState operatingState = 3;
	string controlProtocol = 4; // "qmi" or "mbim"
	string imei = 5;
	repeated CellularProvider providers = 6;
	// 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_ONLINE_AND_CONNECTED = 2;
	OPERATING_STATE_RADIO_OFF = 23;  (AKA airplane mode)
	OPERATING_STATE_OFFLINE = 34;
	...
}

message CellularProvider {
	string plmn = 1;
	string description = 2;
	bool currentServing = 3;
	bool roaming = 4;
}

{
	// MD5 checksum of config.json applied at the time of publishing this info
	"config-checksum": "d7548db5594b064f2c9ec0599e84523e",
	"modems": [
		{
			"device-name": "lte-modem1",    # can be empty for modems not configured from the controller
			"physical-addrs: {
				# all addresses will be filled by wwan service
				“interface”: “wwan0”,
				“usb”: “1:2.3”, # <bus>:[port]
				"pci": "0000:11:00.0",
			},
			"control-protocol": "qmi" | "mbim",
			"operating-mode": "offline" | "online" | "online-and-connected" | "radio-off" | "unrecognized",
			"imei": “310170845466094”,
			"modem": {
				"model": "QUECTEL Mobile Broadband Module",
				"revision": "EC21ECGAR06A04M1G",
			},
			"config-error": "",
			"probe-error": "Failed to ping 8.8.8.8 (2 packets transmitted, 0 received, 100% packet loss, time 1029ms)",
			"providers": [
				{
					"plmn": "310-410",
					"description": "AT&T",
					"current-serving": true,
					"roaming": false
				},
				{
					"plmn": "310-120",
					"description": "O2",
					"current-serving": false,
					"roaming": false
				}
			]
		}
	]
}