class DefGwTest(unittest.TestCase):
"""
Validate default router setting.
"""
def setUp(self):
self.gw_store = defaultdict(str)
self.dhcp_gw_info = UplinkGatewayInfo(self.gw_store)
def test_gw_ip_for_DHCP(self):
self.assertEqual(self.dhcp_gw_info.getIP(), None)
self.assertEqual(self.dhcp_gw_info.getMac(), None)
def test_gw_ip_for_Ip_pool(self):
self.dhcp_gw_info.read_default_gw()
def_gw_cmd = "ip route show |grep default| awk '{print $3}'"
p = subprocess.Popen([def_gw_cmd], stdout=subprocess.PIPE, shell=True)
def_ip = p.stdout.read().decode("utf-8").strip()
self.assertEqual(self.dhcp_gw_info.getIP(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.getMac(), None)
def set_deafult_gw(self, args):
"""
Set GW for given uplink network
Args:
args: IP address of GW.
Returns:
"""
gw_ip = ip_address(args.ip)
gw_info = UplinkGatewayInfo()
gw_info.update_ip(str(gw_ip))
print("set Default gw IP to %s" % gw_info.getIP())
def list_all_record(self, args):
"""
Print list DHCP and GW records.
Args:
args: None
Returns: None
"""
for k, v in self.dhcp_client_state.items():
print("mac: %s DHCP state: %s" % (k.replace('_', ':'), str(v)))
gw_info = UplinkGatewayInfo(store.GatewayInfoMap())
print("Default GW: %s" % gw_info.getIP())
print("GW Mac address: %s" % gw_info.getMac())
def test_ip_alloc(self):
sid1 = "IMSI02917"
ip1 = self._dhcp_allocator.alloc_ip_address(sid1)
threading.Event().wait(2)
gw_map = store.GatewayInfoMap()
dhcp_gw_info = UplinkGatewayInfo(gw_map)
dhcp_store = store.MacToIP() # mac => DHCP_State
self.assertEqual(str(dhcp_gw_info.getIP()), "192.168.128.211")
self._dhcp_allocator.release_ip_address(sid1, ip1)
# wait for DHCP release
threading.Event().wait(7)
mac1 = create_mac_from_sid(sid1)
dhcp_state1 = dhcp_store.get(mac1.as_redis_key())
self.assertEqual(dhcp_state1.state, DHCPState.RELEASE)
ip1_1 = self._dhcp_allocator.alloc_ip_address(sid1)
threading.Event().wait(2)
self.assertEqual(str(ip1), str(ip1_1))
self._dhcp_allocator.release_ip_address(sid1, ip1_1)
threading.Event().wait(5)
self.assertEqual(self._dhcp_allocator.list_added_ip_blocks(), [])
ip1 = self._dhcp_allocator.alloc_ip_address("IMSI02918")
self.assertEqual(str(ip1), "192.168.128.146")
self.assertEqual(self._dhcp_allocator.list_added_ip_blocks(),
[ip_network('192.168.128.0/24')])
ip2 = self._dhcp_allocator.alloc_ip_address("IMSI029192")
self.assertNotEqual(ip1, ip2)
ip3 = self._dhcp_allocator.alloc_ip_address("IMSI0432")
self.assertNotEqual(ip1, ip3)
self.assertNotEqual(ip2, ip3)
# release unallocated IP of SID
self._dhcp_allocator.ip_allocator.release_ip("IMSI033", ip3,
ip_network("1.1.1.0/24"))
self.assertEqual(self._dhcp_allocator.list_added_ip_blocks(),
[ip_network('192.168.128.0/24')])
sid4 = "IMSI54321"
ip4 = self._dhcp_allocator.alloc_ip_address(sid4)
threading.Event().wait(1)
self._dhcp_allocator.release_ip_address(sid4, ip4)
self.assertEqual(self._dhcp_allocator.list_added_ip_blocks(),
[ip_network('192.168.128.0/24')])
# wait for DHCP release
threading.Event().wait(7)
mac4 = create_mac_from_sid(sid4)
dhcp_state = dhcp_store.get(mac4.as_redis_key())
self.assertEqual(dhcp_state.state, DHCPState.RELEASE)
ip4_2 = self._dhcp_allocator.alloc_ip_address(sid4)
self.assertEqual(ip4, ip4_2)
try:
self._dhcp_allocator.release_ip_address(sid1, ip1)
self.assertEqual("should not", "reach here")
except MappingNotFoundError:
pass
