Added disconnect support for nmcli interfaces.

wireless/Wireless.py

@@ -88,6 +88,9 @@ def power(self, power=None):
     def driver(self):
         return self._driver_name
 
+    def disconnect(self):
+        return self._driver.disconnect()
+
 
 # abstract class for all wireless drivers
 class WirelessDriver:
@@ -113,6 +116,9 @@ def interface(self, interface=None):
     def power(self, power=None):
         pass
 
+    @abstractmethod
+    def disconnect(self):
+        pass
 
 # Linux nmcli Driver < 0.9.9.0
 class NmcliWireless(WirelessDriver):
@@ -164,6 +170,10 @@ def connect(self, ssid, password):
         # parse response
         return not self._errorInResponse(response)
 
+    def disconnect(self):
+        response = cmd('nmcli dev disconnect iface {}'.format(self._interface))
+        return not self._errorInResponse(response)
+
     # returned the ssid of the current network
     def current(self):
         # list active connections for all interfaces
@@ -249,6 +259,10 @@ def _errorInResponse(self, response):
         # if we didn't find an error then we are in the clear
         return False
 
+    def disconnect(self):
+        response = cmd('nmcli dev disconnect iface {}'.format(self._interface))
+        return not self._errorInResponse(response)
+
     # connect to a network
     def connect(self, ssid, password):
         # clean up previous connection