autotest: Add network_LockedSIM test.

client/site_tests/network_LockedSIM/network_LockedSIM.py

+# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from autotest_lib.client.bin import test
+from autotest_lib.client.common_lib import error
+
+import os, time
+import dbus, dbus.mainloop.glib, gobject
+import random
+
+class TestFailure(Exception):
+    pass
+
+class network_LockedSIM(test.test):
+    version = 1
+
+    def modem(self, path):
+        return self.bus.get_object('org.freedesktop.ModemManager', path)
+
+    def ChangePin(self, path, old, new):
+        iface = 'org.freedesktop.ModemManager.Modem.Gsm.Card'
+        self.modem(path).ChangePin(old, new, dbus_interface=iface)
+
+    def EnablePin(self, path, pin):
+        iface = 'org.freedesktop.ModemManager.Modem.Gsm.Card'
+        self.modem(path).EnablePin(pin, True, dbus_interface=iface)
+
+    def DisablePin(self, path, pin):
+        iface = 'org.freedesktop.ModemManager.Modem.Gsm.Card'

[Jason Glasgow, 2011/01/10 20:54:18]

Why not self.icard?  (For many of the methods in this class).

[Elly Fong-Jones, 2011/04/06 20:08:12]

Done.

+        self.modem(path).EnablePin(pin, False, dbus_interface=iface)
+
+    def Powercycle(self, path):
+        iface = 'org.freedesktop.ModemManager.Modem'
+        self.modem(path).PowerCycle(dbus_interface=iface)
+
+    def Unlock(self, path, pin):
+        iface = 'org.freedesktop.ModemManager.Modem.Gsm.Card'
+        self.modem(path).SendPin(pin, dbus_interface=iface)
+
+    def retries(self, path):
+        iface = 'org.freedesktop.DBus.Properties'
+        return self.modem(path).Get(self.imodem, 'UnlockRetries',
+                                    dbus_interface=iface)
+
+    def run_once(self):
+        self.imm = 'org.freedesktop.ModemManager'
+        self.imodem = 'org.freedesktop.ModemManager.Modem'
+        self.icard = 'org.freedesktop.ModemManager.Modem.Gsm.Card'
+        passed = True
+        self.bus = dbus.SystemBus()
+        self.mm = self.bus.get_object('org.freedesktop.ModemManager',
+                                      '/org/freedesktop/ModemManager')

[Jason Glasgow, 2011/01/10 20:54:18]

Can we parameterize /org/freedesktop/ModemManager?  We might want to run this
test against cromo.

[Elly Fong-Jones, 2011/04/06 20:08:12]

Done.

+
+        self.devs = self.mm.EnumerateDevices(dbus_interface=self.imm)
+        print 'devs: %d' % len(self.devs)
+        for d in self.devs:
+            print 'device: %s' % d
+            # Make sure we can change the pin - this guarantees that the pin is
+            # properly set to start with.
+            self.ChangePin(d, '1111', '1112')
+            self.ChangePin(d, '1112', '1111')
+            self.EnablePin(d, '1111')
+            self.Powercycle(d)
+
+        # Give the modem a little while to come back...
+        time.sleep(20)
+
+        # Re-enumerate devices, since we're hoping they all disappeared and
+        # reappeared.
+        self.devs = self.mm.EnumerateDevices(dbus_interface=self.imm)
+        print 'newdevs: %d' % len(self.devs)
+        for d in self.devs:
+            print 'newdevice: %s' % d
+            retries = self.retries(d)
+            try:
+                self.Unlock(d, '1112')
+            except dbus.exceptions.DBusException:
+                pass
+                # We expect a failure here, so swallow the DBus exception.
+            nretries = self.retries(d)
+            self.Unlock(d, '1111')

[Jason Glasgow, 2011/01/10 20:54:18]

Can we make sure not to do this if retries < 2?  We don't want to get the SIMs
permanently locked.

[Elly Fong-Jones, 2011/04/06 20:08:12]

Done.

+            self.DisablePin(d, '1111')
+            print '%s retries %d nretries %d' % (d, retries, nretries)
+            if nretries != (retries - 1):
+                # We can't just raise the exception here - if there are multiple
+                # modems in the system, we might raise on the first one and
+                # leave the others locked.
+                passed = False
+
+        if not passed:
+            raise TestFailure()

[Jason Glasgow, 2011/01/10 20:54:18]

If this test works for multiple devices, can we raise the TestFailure error with
the list of dbus paths (or other identifier) of the devices that failed the
test?