auto-t: add AP test for all pairwise/group cipher combos

Iterates through every possible cipher combination and verifies the
AP can authenticate the clients.

autotests/testAP/TestAP2.ap

@@ -0,0 +1,2 @@
+[Security]
+Passphrase=Password2

autotests/testAP/connection_test.py

@@ -1,6 +1,7 @@
 #! /usr/bin/python3
 
 import unittest
+import os
 
 from iwd import IWD
 from config import ctx
@@ -8,6 +9,8 @@ from validation import validate, client_connect
 
 class Test(unittest.TestCase):
     def test_connection_success(self):
+        IWD.copy_to_storage('TestAP1.psk')
+
         wd = IWD(True)
 
         dev1, dev2 = wd.list_devices(2)
@@ -22,6 +25,8 @@ class Test(unittest.TestCase):
         client_connect(wd, dev1, 'TestAP1')
 
     def test_client_start_ap(self):
+        IWD.copy_to_storage('TestAP1.psk')
+
         wd = IWD(True)
 
         dev1, dev2 = wd.list_devices(2)
@@ -39,12 +44,33 @@ class Test(unittest.TestCase):
 
         validate(wd, dev2, dev1, 'TestAP2', 'Password2')
 
-    @classmethod
-    def setUpClass(cls):
-        IWD.copy_to_storage('TestAP1.psk')
+    def test_valid_ciphers(self):
+        ciphers = ['TKIP', 'CCMP-128', 'GCMP-128', 'CCMP-256', 'GCMP-256']
 
-    @classmethod
-    def tearDownClass(cls):
+        for group in ciphers:
+            for pairwise in ciphers:
+                IWD.copy_to_ap('TestAP2.ap')
+                os.system('echo "PairwiseCiphers=%s" >> /tmp/iwd/ap/TestAP2.ap' % pairwise)
+                os.system('echo "GroupCipher=%s" >> /tmp/iwd/ap/TestAP2.ap' % group)
+
+                wd = IWD(True)
+
+                dev1, dev2 = wd.list_devices(2)
+
+                dev1.start_ap('TestAP2')
+
+                self.assertTrue(dev1.group_cipher == group)
+                self.assertTrue(dev1.pairwise_ciphers == pairwise)
+
+                try:
+                    validate(wd, dev2, dev1, 'TestAP2', 'Password2', ip_checks=False)
+                except:
+                    raise Exception("Failed with pairwise=%s group=%s" % (pairwise, group))
+                finally:
+                    IWD.clear_storage()
+                    del wd
+
+    def tearDown(self):
         IWD.clear_storage()
 
 if __name__ == '__main__':