diff options
Diffstat (limited to 'test/test_gtpu.py')
| -rw-r--r-- | test/test_gtpu.py | 194 |
1 files changed, 107 insertions, 87 deletions
diff --git a/test/test_gtpu.py b/test/test_gtpu.py index 791067c0633..fd97205ac63 100644 --- a/test/test_gtpu.py +++ b/test/test_gtpu.py @@ -1,18 +1,15 @@ #!/usr/bin/env python3 -import socket from util import ip4_range import unittest -from framework import tag_fixme_vpp_workers -from framework import VppTestCase, VppTestRunner +from framework import VppTestCase +from asfframework import VppTestRunner, tag_fixme_vpp_workers from template_bd import BridgeDomain from scapy.layers.l2 import Ether -from scapy.packet import Raw from scapy.layers.inet import IP, UDP from scapy.layers.inet6 import IPv6 from scapy.contrib.gtp import GTP_U_Header -from scapy.utils import atol import util from vpp_ip_route import VppIpRoute, VppRoutePath @@ -21,7 +18,7 @@ from vpp_ip import INVALID_INDEX @tag_fixme_vpp_workers class TestGtpuUDP(VppTestCase): - """ GTPU UDP ports Test Case """ + """GTPU UDP ports Test Case""" def setUp(self): super(TestGtpuUDP, self).setUp() @@ -38,16 +35,16 @@ class TestGtpuUDP(VppTestCase): self.pg0.config_ip6() def _check_udp_port_ip4(self, enabled=True): - - pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) / - UDP(sport=self.dport, dport=self.dport, chksum=0)) + pkt = ( + Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) + / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) + / UDP(sport=self.dport, dport=self.dport, chksum=0) + ) self.pg0.add_stream(pkt) self.pg_start() - err = self.statistics.get_counter( - '/err/ip4-udp-lookup/No listener for dst port')[0] + err = self.statistics.get_counter("/err/ip4-udp-lookup/no_listener")[0] if enabled: self.assertEqual(err, self.ip4_err) @@ -57,16 +54,16 @@ class TestGtpuUDP(VppTestCase): self.ip4_err = err def _check_udp_port_ip6(self, enabled=True): - - pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) / - IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) / - UDP(sport=self.dport, dport=self.dport, chksum=0)) + pkt = ( + Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) + / IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) + / UDP(sport=self.dport, dport=self.dport, chksum=0) + ) self.pg0.add_stream(pkt) self.pg_start() - err = self.statistics.get_counter( - '/err/ip6-udp-lookup/No listener for dst port')[0] + err = self.statistics.get_counter("/err/ip6-udp-lookup/no_listener")[0] if enabled: self.assertEqual(err, self.ip6_err) @@ -76,46 +73,54 @@ class TestGtpuUDP(VppTestCase): self.ip6_err = err def test_udp_port(self): - """ test UDP ports + """test UDP ports Check if there are no udp listeners before gtpu is enabled """ # UDP ports should be disabled unless a tunnel is configured self._check_udp_port_ip4(False) self._check_udp_port_ip6(False) - r = self.vapi.gtpu_add_del_tunnel(is_add=True, - mcast_sw_if_index=0xFFFFFFFF, - decap_next_index=0xFFFFFFFF, - src_address=self.pg0.local_ip4, - dst_address=self.pg0.remote_ip4) + r = self.vapi.gtpu_add_del_tunnel( + is_add=True, + mcast_sw_if_index=0xFFFFFFFF, + decap_next_index=0xFFFFFFFF, + src_address=self.pg0.local_ip4, + dst_address=self.pg0.remote_ip4, + ) # UDP port 2152 enabled for ip4 self._check_udp_port_ip4() - r = self.vapi.gtpu_add_del_tunnel(is_add=True, - mcast_sw_if_index=0xFFFFFFFF, - decap_next_index=0xFFFFFFFF, - src_address=self.pg0.local_ip6, - dst_address=self.pg0.remote_ip6) + r = self.vapi.gtpu_add_del_tunnel( + is_add=True, + mcast_sw_if_index=0xFFFFFFFF, + decap_next_index=0xFFFFFFFF, + src_address=self.pg0.local_ip6, + dst_address=self.pg0.remote_ip6, + ) # UDP port 2152 enabled for ip6 self._check_udp_port_ip6() - r = self.vapi.gtpu_add_del_tunnel(is_add=False, - mcast_sw_if_index=0xFFFFFFFF, - decap_next_index=0xFFFFFFFF, - src_address=self.pg0.local_ip4, - dst_address=self.pg0.remote_ip4) + r = self.vapi.gtpu_add_del_tunnel( + is_add=False, + mcast_sw_if_index=0xFFFFFFFF, + decap_next_index=0xFFFFFFFF, + src_address=self.pg0.local_ip4, + dst_address=self.pg0.remote_ip4, + ) - r = self.vapi.gtpu_add_del_tunnel(is_add=False, - mcast_sw_if_index=0xFFFFFFFF, - decap_next_index=0xFFFFFFFF, - src_address=self.pg0.local_ip6, - dst_address=self.pg0.remote_ip6) + r = self.vapi.gtpu_add_del_tunnel( + is_add=False, + mcast_sw_if_index=0xFFFFFFFF, + decap_next_index=0xFFFFFFFF, + src_address=self.pg0.local_ip6, + dst_address=self.pg0.remote_ip6, + ) class TestGtpu(BridgeDomain, VppTestCase): - """ GTPU Test Case """ + """GTPU Test Case""" def __init__(self, *args): BridgeDomain.__init__(self) @@ -126,14 +131,16 @@ class TestGtpu(BridgeDomain, VppTestCase): Encapsulate the original payload frame by adding GTPU header with its UDP, IP and Ethernet fields """ - return (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / - IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) / - UDP(sport=self.dport, dport=self.dport, chksum=0) / - GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) / - pkt) + return ( + Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) + / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) + / UDP(sport=self.dport, dport=self.dport, chksum=0) + / GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) + / pkt + ) def ip_range(self, start, end): - """ range of remote ip's """ + """range of remote ip's""" return ip4_range(self.pg0.remote_ip4, start, end) def encap_mcast(self, pkt, src_ip, src_mac, vni): @@ -141,11 +148,13 @@ class TestGtpu(BridgeDomain, VppTestCase): Encapsulate the original payload frame by adding GTPU header with its UDP, IP and Ethernet fields """ - return (Ether(src=src_mac, dst=self.mcast_mac) / - IP(src=src_ip, dst=self.mcast_ip4) / - UDP(sport=self.dport, dport=self.dport, chksum=0) / - GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) / - pkt) + return ( + Ether(src=src_mac, dst=self.mcast_mac) + / IP(src=src_ip, dst=self.mcast_ip4) + / UDP(sport=self.dport, dport=self.dport, chksum=0) + / GTP_U_Header(teid=vni, gtp_type=self.gtp_type, length=150) + / pkt + ) def decapsulate(self, pkt): """ @@ -178,7 +187,7 @@ class TestGtpu(BridgeDomain, VppTestCase): self.assertEqual(pkt[GTP_U_Header].teid, vni) def test_encap(self): - """ Encapsulation test + """Encapsulation test Send frames from pg1 Verify receipt of encapsulated frames on pg0 """ @@ -197,7 +206,7 @@ class TestGtpu(BridgeDomain, VppTestCase): # self.assert_eq_pkts(payload, self.frame_reply) def test_ucast_flood(self): - """ Unicast flood test + """Unicast flood test Send frames from pg3 Verify receipt of encapsulated frames on pg0 """ @@ -215,7 +224,7 @@ class TestGtpu(BridgeDomain, VppTestCase): # self.assert_eq_pkts(payload, self.frame_reply) def test_mcast_flood(self): - """ Multicast flood test + """Multicast flood test Send frames from pg2 Verify receipt of encapsulated frames on pg0 """ @@ -228,8 +237,9 @@ class TestGtpu(BridgeDomain, VppTestCase): # Pick first received frame and check if it's correctly encapsulated. out = self.pg0.get_capture(1) pkt = out[0] - self.check_encapsulation(pkt, self.mcast_flood_bd, - local_only=False, mcast_pkt=True) + self.check_encapsulation( + pkt, self.mcast_flood_bd, local_only=False, mcast_pkt=True + ) # payload = self.decapsulate(pkt) # self.assert_eq_pkts(payload, self.frame_reply) @@ -240,13 +250,15 @@ class TestGtpu(BridgeDomain, VppTestCase): ip_range_start = 10 ip_range_end = ip_range_start + n_ucast_tunnels next_hop_address = cls.pg0.remote_ip4 - for dest_ip4 in ip4_range(next_hop_address, ip_range_start, - ip_range_end): + for dest_ip4 in ip4_range(next_hop_address, ip_range_start, ip_range_end): # add host route so dest_ip4 will not be resolved - rip = VppIpRoute(cls, dest_ip4, 32, - [VppRoutePath(next_hop_address, - INVALID_INDEX)], - register=False) + rip = VppIpRoute( + cls, + dest_ip4, + 32, + [VppRoutePath(next_hop_address, INVALID_INDEX)], + register=False, + ) rip.add_vpp_config() r = cls.vapi.gtpu_add_del_tunnel( is_add=True, @@ -254,9 +266,11 @@ class TestGtpu(BridgeDomain, VppTestCase): decap_next_index=0xFFFFFFFF, src_address=cls.pg0.local_ip4, dst_address=dest_ip4, - teid=teid) - cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, - bd_id=teid) + teid=teid, + ) + cls.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=r.sw_if_index, bd_id=teid + ) @classmethod def add_del_shared_mcast_dst_load(cls, is_add): @@ -274,8 +288,9 @@ class TestGtpu(BridgeDomain, VppTestCase): dst_address=cls.mcast_ip4, mcast_sw_if_index=1, teid=teid, - is_add=is_add) - if r.sw_if_index == 0xffffffff: + is_add=is_add, + ) + if r.sw_if_index == 0xFFFFFFFF: raise ValueError("bad sw_if_index: ~0") @classmethod @@ -294,16 +309,16 @@ class TestGtpu(BridgeDomain, VppTestCase): n_distinct_dst_tunnels = 20 ip_range_start = 10 ip_range_end = ip_range_start + n_distinct_dst_tunnels - for dest_ip4 in ip4_range(cls.mcast_ip4, ip_range_start, - ip_range_end): - teid = int(dest_ip4.split('.')[3]) + for dest_ip4 in ip4_range(cls.mcast_ip4, ip_range_start, ip_range_end): + teid = int(dest_ip4.split(".")[3]) cls.vapi.gtpu_add_del_tunnel( decap_next_index=0xFFFFFFFF, src_address=cls.pg0.local_ip4, dst_address=dest_ip4, mcast_sw_if_index=1, teid=teid, - is_add=is_add) + is_add=is_add, + ) @classmethod def add_mcast_tunnels_load(cls): @@ -324,7 +339,7 @@ class TestGtpu(BridgeDomain, VppTestCase): try: cls.dport = 2152 - cls.gtp_type = 0xff + cls.gtp_type = 0xFF # Create 2 pg interfaces. cls.create_pg_interfaces(range(4)) @@ -338,7 +353,7 @@ class TestGtpu(BridgeDomain, VppTestCase): cls.pg0.resolve_arp() # Our Multicast address - cls.mcast_ip4 = '239.1.1.1' + cls.mcast_ip4 = "239.1.1.1" cls.mcast_mac = util.mcast_ip_to_mac(cls.mcast_ip4) # Create GTPU VTEP on VPP pg0, and put gtpu_tunnel0 and pg1 @@ -351,28 +366,33 @@ class TestGtpu(BridgeDomain, VppTestCase): decap_next_index=0xFFFFFFFF, src_address=cls.pg0.local_ip4, dst_address=cls.pg0.remote_ip4, - teid=cls.single_tunnel_vni) - cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, - bd_id=cls.single_tunnel_bd) + teid=cls.single_tunnel_vni, + ) + cls.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=r.sw_if_index, bd_id=cls.single_tunnel_bd + ) cls.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=cls.pg1.sw_if_index, bd_id=cls.single_tunnel_bd) + rx_sw_if_index=cls.pg1.sw_if_index, bd_id=cls.single_tunnel_bd + ) # Setup teid 2 to test multicast flooding cls.n_ucast_tunnels = 10 cls.mcast_flood_bd = 12 - cls.create_gtpu_flood_test_bd(cls.mcast_flood_bd, - cls.n_ucast_tunnels) + cls.create_gtpu_flood_test_bd(cls.mcast_flood_bd, cls.n_ucast_tunnels) r = cls.vapi.gtpu_add_del_tunnel( is_add=True, src_address=cls.pg0.local_ip4, dst_address=cls.mcast_ip4, mcast_sw_if_index=1, decap_next_index=0xFFFFFFFF, - teid=cls.mcast_flood_bd) - cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, - bd_id=cls.mcast_flood_bd) + teid=cls.mcast_flood_bd, + ) + cls.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=r.sw_if_index, bd_id=cls.mcast_flood_bd + ) cls.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd) + rx_sw_if_index=cls.pg2.sw_if_index, bd_id=cls.mcast_flood_bd + ) # Add and delete mcast tunnels to check stability cls.add_shared_mcast_dst_load() @@ -382,10 +402,10 @@ class TestGtpu(BridgeDomain, VppTestCase): # Setup teid 3 to test unicast flooding cls.ucast_flood_bd = 13 - cls.create_gtpu_flood_test_bd(cls.ucast_flood_bd, - cls.n_ucast_tunnels) + cls.create_gtpu_flood_test_bd(cls.ucast_flood_bd, cls.n_ucast_tunnels) cls.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd) + rx_sw_if_index=cls.pg3.sw_if_index, bd_id=cls.ucast_flood_bd + ) except Exception: super(TestGtpu, cls).tearDownClass() raise @@ -409,5 +429,5 @@ class TestGtpu(BridgeDomain, VppTestCase): self.logger.info(self.vapi.cli("show trace")) -if __name__ == '__main__': +if __name__ == "__main__": unittest.main(testRunner=VppTestRunner) |