Add skeleton code for CAPWAP Data Channel kernel module.

The IEEE802.11 data packets will embedded into CAPWAP Data Channel directly in
kernel mode. The CAPWAP Data Channel in usermode be used only for compatibility
reasons.

openwrt/files/wtp.conf

@@ -0,0 +1,150 @@
+# WTP configuration file
+
+version = "1.0";
+
+application: {
+	standalone = true;
+
+	name = "wtp 1";
+
+	location = "Ufficio";
+
+	binding = "802.11";
+
+	tunnelmode: {
+		nativeframe = false;
+		ethframe = false;
+		localbridging = true;
+	};
+
+	mactype = "localmac";
+
+	boardinfo: {
+		idvendor = 123456;
+
+		element  = (
+			{ name = "model"; value = "1.0"; },
+			{ name = "serial"; value = "2.0"; },
+			{ name = "id"; value = "3.0"; },
+			{ name = "revision"; value = "4.0"; },
+			{ name = "macaddress"; type = "interface"; value = "eth0"; }
+		);
+	};
+
+	descriptor: {
+		encryption = [ 
+			"802.11_AES", 
+			"802.11_TKIP" 
+		];
+
+		info = (
+			{ idvendor = 23456; type = "hardware"; value = "abcde"; },
+			{ idvendor = 33457; type = "software"; value = "fghil"; },
+			{ idvendor = 43458; type = "boot"; value = "mnopq"; },
+			{ idvendor = 53459; type = "other"; value = "qwert"; }
+		);
+	};
+
+	ecn = "limited";
+
+	timer: {
+		statistics = 120;
+	};
+
+	dtls: {
+		enable = true;
+
+		dtlspolicy: {
+			cleardatachannel = true;
+			dtlsdatachannel = true;
+		};
+
+		type = "x509";
+
+		presharedkey: {
+			identity = "prova";
+			pskkey = "123456";
+		};
+		
+		x509: {
+			calist = "/etc/capwap/ca.crt";
+			certificate = "/etc/capwap/wtp.crt";
+			privatekey = "/etc/capwap/wtp.key";
+		};		
+	};
+
+	wlan: {
+		prefix = "ap";
+	};
+
+	radio = (
+		{ 
+			device = "phy0"; 
+			enabled = true;
+			driver = "nl80211";
+			mode = "bg";
+			country = "IT";
+			outdoor = false;
+			rtsthreshold = 2347;
+			shortretry = 7;
+			longretry = 4;
+			shortpreamble = true;
+			fragmentationthreshold = 2346;
+			txmsdulifetime = 512;
+			rxmsdulifetime = 512;
+			maxbssid = 1;
+			bssprefixname = "ap";
+			dtimperiod = 2;
+			beaconperiod = 100;
+			antenna = {
+				diversity = false;
+				combiner = "omni";
+				selection = [ "internal" ];
+			};
+			multidomaincapability = { 
+				firstchannel = 1;
+				numberchannels = 11;
+				maxtxpower = 100; 
+			};
+			supportedrates = [
+				12, 18, 24, 36, 48, 72, 96, 108
+			];
+			txpower = {
+				current = 100;
+				supported = [ 100 ];
+			};
+		}
+	);
+
+	network: {
+		#binding = "eth1";
+		mtu = 1500;
+
+		transport = "udp";
+
+		ipv4 = true; 
+		ipv6 = false;
+		ipdualstack = true;
+	};
+
+	acdiscovery: {
+		search = false;
+		host = [
+			"192.168.1.101"
+		];
+	};
+
+	acprefered: {
+		host = [
+			"192.168.1.101"
+		];
+	};
+};
+
+logging: {
+	enable = true;
+	level = "debug";
+	output = (
+		{ mode = "stdout"; }
+	);
+};