def init_store(
self,
client: redis.Redis,
persist_to_redis: bool,
redis_port: int,
):
if not persist_to_redis:
self.ip_state_map = IpDescriptorMap(defaultdict(dict))
self.ipv6_state_map = IpDescriptorMap(defaultdict(dict))
self.assigned_ip_blocks = set() # {ip_block}
self.sid_ips_map = defaultdict(IPDesc) # {SID=>IPDesc}
self.dhcp_gw_info = UplinkGatewayInfo(defaultdict(GWInfo))
self.dhcp_store = {} # mac => DHCP_State
self.allocated_iid = {} # {ipv6 interface identifiers}
self.sid_session_prefix_allocated = {} # SID => session prefix
else:
if not redis_port:
raise ValueError(
'Must specify a redis_port in mobilityd config.', )
self.ip_state_map = IpDescriptorMap(
defaultdict_key(lambda key: ip_states(client, key)), )
self.ipv6_state_map = IpDescriptorMap(
defaultdict_key(lambda key: ip_states(client, key)), )
self.assigned_ip_blocks = AssignedIpBlocksSet(client)
self.sid_ips_map = IPDescDict(client)
self.dhcp_gw_info = UplinkGatewayInfo(GatewayInfoMap())
self.dhcp_store = MacToIP() # mac => DHCP_State
self.allocated_iid = AllocatedIID()
self.sid_session_prefix_allocated = AllocatedSessionPrefix()
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.get_gw_ip())
def set_deafult_gw_mac(self, args):
"""
Set mac address of the GW
Args:
args: mac address
Returns:
"""
gw_mac = ip_address(args.ip)
gw_info = UplinkGatewayInfo()
gw_info.update_mac(str(gw_mac))
print("set Default gw mac to %s" % gw_info.get_gw_mac())
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.get_gw_ip())
print("GW Mac address: %s" % gw_info.get_gw_mac())
def setUp(self):
self._br = "t_up_br0"
try:
subprocess.check_call(["pkill", "dnsmasq"])
except subprocess.CalledProcessError:
pass
setup_dhcp_server = SCRIPT_PATH + "scripts/setup-test-dhcp-srv.sh"
subprocess.check_call([setup_dhcp_server, "t0"])
setup_uplink_br = [SCRIPT_PATH + "scripts/setup-uplink-br.sh",
self._br,
DHCP_IFACE,
"8A:00:00:00:00:01"]
subprocess.check_call(setup_uplink_br)
self.dhcp_wait = threading.Condition()
self.dhcp_store = {}
self.gw_info_map = {}
self.gw_info = UplinkGatewayInfo(self.gw_info_map)
self._dhcp_client = DHCPClient(dhcp_wait=self.dhcp_wait,
dhcp_store=self.dhcp_store,
gw_info=self.gw_info,
iface="t_dhcp0",
lease_renew_wait_min=1)
self._dhcp_client.run()
def _setup_non_nat_monitoring(self, datapath):
"""
Setup egress flow to forward traffic to internet GW.
Start a thread to figure out MAC address of uplink NAT gw.
:param datapath: datapath to install flows.
:return: None
"""
if self._gw_mac_monitor is not None:
# No need to multiple probes here.
return
if self.config.enable_nat is True:
self.logger.info("Nat is on")
return
elif self.config.setup_type != 'LTE':
self.logger.info("No GW MAC probe for %s", self.config.setup_type)
return
else:
self.logger.info("Non nat conf: Frequency:%s, egress port: %s, uplink: %s",
self.config.non_mat_gw_probe_frequency,
self.config.non_nat_arp_egress_port,
self._uplink_port)
self._dhcp_gw_info = UplinkGatewayInfo(store.GatewayInfoMap())
self._gw_mac_monitor = Thread(target=self._monitor_and_update,
args=(datapath,))
self._gw_mac_monitor.setDaemon(True)
self._gw_mac_monitor.start()
threading.Event().wait(1)
def setUp(self):
self._br = "dh_br0"
try:
subprocess.check_call(["pkill", "dnsmasq"])
except subprocess.CalledProcessError:
pass
self.dhcp_wait = threading.Condition()
self.pkt_list_lock = threading.Condition()
self.dhcp_store = {}
self.gw_info_map = {}
self.gw_info = UplinkGatewayInfo(self.gw_info_map)
def init_store(
self,
client: redis.Redis,
):
self.ip_state_map = IpDescriptorMap(
defaultdict_key(lambda key: ip_states(client, key)), )
self.ipv6_state_map = IpDescriptorMap(
defaultdict_key(lambda key: ip_states(client, key)), )
self.assigned_ip_blocks = AssignedIpBlocksSet(client)
self.sid_ips_map = IPDescDict(client)
self.dhcp_gw_info = UplinkGatewayInfo(GatewayInfoMap(client))
self.dhcp_store = MacToIP(client) # mac => DHCP_State
self.allocated_iid = AllocatedIID(client)
self.sid_session_prefix_allocated = AllocatedSessionPrefix(client)
def setUp(self):
self._br = "dh_br0"
self.vlan_sw = "vlan_sw"
self.up_link_port = ""
try:
subprocess.check_call(["pkill", "dnsmasq"])
except subprocess.CalledProcessError:
pass
self.dhcp_wait = threading.Condition()
self.pkt_list_lock = threading.Condition()
self.dhcp_store = {}
self.gw_info_map = {}
self.gw_info = UplinkGatewayInfo(self.gw_info_map)
self._sniffer = None
self._last_xid = -1
def init_store(
self,
client: redis.Redis,
):
get_ip_states: Callable[[IPState], Dict[
str, IPDesc]] = lambda key: ip_states(client, key)
self.ip_state_map = IpDescriptorMap(
defaultdict_key(get_ip_states), # type: ignore[arg-type]
)
self.ipv6_state_map = IpDescriptorMap(
defaultdict_key(get_ip_states), # type: ignore[arg-type]
)
self.assigned_ip_blocks = AssignedIpBlocksSet(client)
self.sid_ips_map = IPDescDict(client)
self.dhcp_gw_info = UplinkGatewayInfo(GatewayInfoMap(client))
self.dhcp_store = MacToIP(client) # mac => DHCP_State
self.allocated_iid = AllocatedIID(client)
self.sid_session_prefix_allocated = AllocatedSessionPrefix(client)
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 setUp(self):
self.gw_store = defaultdict(str)
self.dhcp_gw_info = UplinkGatewayInfo(self.gw_store)
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.get_gw_ip(), None)
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), 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.get_gw_ip(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), '')
mac1 = "11:22:33:44:55:66"
self.dhcp_gw_info.update_mac(def_ip, mac1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), mac1)
# updating IP with same address shld keep mac
self.dhcp_gw_info.update_ip(def_ip)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), mac1)
ip1 = "1.2.3.4"
self.dhcp_gw_info.update_ip(ip1)
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), '')
def test_vlan_gw_info(self):
ip1 = "1.2.3.4"
vlan1 = "1"
self.dhcp_gw_info.update_ip(ip1, vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip1))
mac1 = "11:22:33:44:55:66"
self.dhcp_gw_info.update_mac(ip1, mac1, vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip1))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan1), mac1)
# updating IP with same address shld keep mac
self.dhcp_gw_info.update_mac(ip1, mac1, vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip1))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan1), mac1)
# any IP update shld invalidate MAC address.
ip2 = "2.2.3.4"
self.dhcp_gw_info.update_ip(ip2, vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip2))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan1), '')
def test_vlan_gw_info_none(self):
ip1 = "1.2.3.4"
vlan1 = "1"
mac1 = "11:22:33:44:55:66"
self.dhcp_gw_info.update_mac(ip1, mac1, vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip1))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan1), mac1)
# check None IP or mac updates
self.dhcp_gw_info.update_ip(None, vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip1))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan1), mac1)
self.dhcp_gw_info.update_mac(ip1, None, vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip1))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan1), mac1)
self.dhcp_gw_info.update_mac(None, mac1, vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip1))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan1), mac1)
self.dhcp_gw_info.update_mac(ip1, '', vlan1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan1), str(ip1))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan1), mac1)
vlan2 = None
mac2 = "22:22:33:44:55:66"
self.dhcp_gw_info.update_mac(ip1, mac2, vlan2)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(vlan2), str(ip1))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(vlan2), mac2)
def test_vlan_gw_info_list(self):
ip1 = "1.2.3.4"
vlan1 = "1"
gw1 = _get_gw_info(ip1, '', vlan1)
self.dhcp_gw_info.update_ip(ip1, vlan1)
ip2 = "2.2.3.4"
vlan2 = "2"
gw2 = _get_gw_info(ip2, '', vlan2)
self.dhcp_gw_info.update_ip(ip2, vlan2)
ip3 = "3.2.3.4"
gw3 = _get_gw_info(ip3)
self.dhcp_gw_info.update_ip(ip3)
ip4 = "4.2.3.4"
vlan4 = "4"
mac4 = "11:22:33:44:55:66"
gw4 = _get_gw_info(ip4, mac4, vlan4)
self.dhcp_gw_info.update_mac(ip4, mac4, vlan4)
ip5 = "2020::1"
vlan5 = "4"
mac5 = "11:22:33:44:55:66"
gw5 = _get_gw_info(ip5, mac5, vlan5)
self.dhcp_gw_info.update_mac(ip5, mac5, vlan5, IPAddress.IPV6)
gw_list = self.dhcp_gw_info.get_all_router_ips()
expected = gw_list_to_set([gw1, gw2, gw3, gw4, gw5])
self.assertEqual(gw_list_to_set(gw_list), expected)
class DefGwTestIpv6(unittest.TestCase):
"""
Validate v6 router setting.
"""
@classmethod
def setUpClass(cls, *_):
"""
Starts the thread which launches ryu apps
Create a testing bridge, add a port, setup the port interfaces. Then
launch the ryu apps for testing pipelined. Gets the references
to apps launched by using futures.
"""
super(DefGwTestIpv6, cls).setUpClass()
uplink_gw.netifaces = MockedNetInterface()
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.get_gw_ip(), None)
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), None)
def test_gw_ip_for_Ip_pool(self):
self.dhcp_gw_info.read_default_gw()
def_ip = '10.0.2.3'
self.assertEqual(self.dhcp_gw_info.get_gw_ip(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), '')
mac1 = "11:22:33:44:55:66"
self.dhcp_gw_info.update_mac(def_ip, mac1)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), mac1)
# updating IP with same address shld keep mac
self.dhcp_gw_info.update_ip(def_ip)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), mac1)
ip1 = "1.2.3.4"
self.dhcp_gw_info.update_ip(ip1)
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), '')
def test_gw_ip_for_Ip_pool_v6(self):
self.dhcp_gw_info.read_default_gw_v6()
def_ip_v6 = '2002::1'
self.assertEqual(self.dhcp_gw_info.get_gw_ip(version=IPAddress.IPV6), str(def_ip_v6))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(version=IPAddress.IPV6), '')
mac6 = "11:22:33:44:55:66"
self.dhcp_gw_info.update_mac(def_ip_v6, mac6, version=IPAddress.IPV6)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(version=IPAddress.IPV6), str(def_ip_v6))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(version=IPAddress.IPV6), mac6)
self.dhcp_gw_info.read_default_gw()
def_ip = '10.0.2.3'
self.assertEqual(self.dhcp_gw_info.get_gw_ip(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), '')
mac4 = "11:22:33:44:55:44"
self.dhcp_gw_info.update_mac(def_ip, mac4)
self.assertEqual(self.dhcp_gw_info.get_gw_ip(), str(def_ip))
self.assertEqual(self.dhcp_gw_info.get_gw_mac(), mac4)
ip4 = def_ip
mac4 = mac4
gw4 = _get_gw_info(ip4, mac4)
ip6 = def_ip_v6
mac6 = mac6
gw6 = _get_gw_info(ip6, mac6)
gw_list = self.dhcp_gw_info.get_all_router_ips()
expected = gw_list_to_set([gw4, gw6])
self.assertEqual(gw_list_to_set(gw_list), expected)
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