CA-420524 Do not allow input a non-exist device in network reset

Find the device from /sys/class/net/ to check if it exists.

Signed-off-by: Changlei Li <[email protected]>

Author: changlei-li

plugins-base/XSFeatureNetworkReset.py

@@ -216,6 +216,9 @@ def HandleKeyDEVICE(self, inKey):
 				if self.device == "":
 					pane.InputIndexSet(None)
 					Layout.Inst().PushDialogue(InfoDialogue(Lang('Invalid device name')))
+				elif not os.path.isdir('/sys/class/net/' + self.device):
+					pane.InputIndexSet(None)
+					Layout.Inst().PushDialogue(InfoDialogue(Lang('Device does not exist')))
 				elif (self.vlan != '') and not valid_vlan(self.vlan):
 					pane.InputIndexSet(None)
 					Layout.Inst().PushDialogue(InfoDialogue(Lang('VLAN tag must be between 0 and 4094')))