diff options
Diffstat (limited to 'test/test_srv6.py')
| -rw-r--r-- | test/test_srv6.py | 1149 |
1 files changed, 650 insertions, 499 deletions
diff --git a/test/test_srv6.py b/test/test_srv6.py index ec2fb6d4369..40b53375ddb 100644 --- a/test/test_srv6.py +++ b/test/test_srv6.py @@ -6,8 +6,14 @@ from socket import AF_INET6 from framework import VppTestCase, VppTestRunner from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathProto, VppIpTable -from vpp_srv6 import SRv6LocalSIDBehaviors, VppSRv6LocalSID, VppSRv6Policy, \ - SRv6PolicyType, VppSRv6Steering, SRv6PolicySteeringTypes +from vpp_srv6 import ( + SRv6LocalSIDBehaviors, + VppSRv6LocalSID, + VppSRv6Policy, + SRv6PolicyType, + VppSRv6Steering, + SRv6PolicySteeringTypes, +) import scapy.compat from scapy.packet import Raw @@ -19,7 +25,7 @@ from util import ppp class TestSRv6(VppTestCase): - """ SRv6 Test Case """ + """SRv6 Test Case""" @classmethod def setUpClass(cls): @@ -30,8 +36,7 @@ class TestSRv6(VppTestCase): super(TestSRv6, cls).tearDownClass() def setUp(self): - """ Perform test setup before each test case. - """ + """Perform test setup before each test case.""" super(TestSRv6, self).setUp() # packet sizes, inclusive L2 overhead @@ -41,17 +46,15 @@ class TestSRv6(VppTestCase): self.reset_packet_infos() def tearDown(self): - """ Clean up test setup after each test case. - """ + """Clean up test setup after each test case.""" self.teardown_interfaces() super(TestSRv6, self).tearDown() - def configure_interface(self, - interface, - ipv6=False, ipv4=False, - ipv6_table_id=0, ipv4_table_id=0): - """ Configure interface. + def configure_interface( + self, interface, ipv6=False, ipv4=False, ipv6_table_id=0, ipv4_table_id=0 + ): + """Configure interface. :param ipv6: configure IPv6 on interface :param ipv4: configure IPv4 on interface :param ipv6_table_id: FIB table_id for IPv6 @@ -70,9 +73,8 @@ class TestSRv6(VppTestCase): interface.resolve_arp() interface.admin_up() - def setup_interfaces(self, ipv6=[], ipv4=[], - ipv6_table_id=[], ipv4_table_id=[]): - """ Create and configure interfaces. + def setup_interfaces(self, ipv6=[], ipv4=[], ipv6_table_id=[], ipv4_table_id=[]): + """Create and configure interfaces. :param ipv6: list of interface IPv6 capabilities :param ipv4: list of interface IPv4 capabilities @@ -107,9 +109,9 @@ class TestSRv6(VppTestCase): # setup all interfaces for i in range(count): intf = self.pg_interfaces[i] - self.configure_interface(intf, - ipv6[i], ipv4[i], - ipv6_table_id[i], ipv4_table_id[i]) + self.configure_interface( + intf, ipv6[i], ipv4[i], ipv6_table_id[i], ipv4_table_id[i] + ) if any(ipv6): self.logger.debug(self.vapi.cli("show ip6 neighbors")) @@ -121,8 +123,7 @@ class TestSRv6(VppTestCase): return self.pg_interfaces def teardown_interfaces(self): - """ Unconfigure and bring down interface. - """ + """Unconfigure and bring down interface.""" self.logger.debug("Tearing down interfaces") # tear down all interfaces # AFAIK they cannot be deleted @@ -135,16 +136,15 @@ class TestSRv6(VppTestCase): @unittest.skipUnless(0, "PC to fix") def test_SRv6_T_Encaps(self): - """ Test SRv6 Transit.Encaps behavior for IPv6. - """ + """Test SRv6 Transit.Encaps behavior for IPv6.""" # send traffic to one destination interface # source and destination are IPv6 only self.setup_interfaces(ipv6=[True, True]) # configure FIB entries - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) + route = VppIpRoute( + self, "a4::", 64, [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index)] + ) route.add_vpp_config() # configure encaps IPv6 source address @@ -152,16 +152,19 @@ class TestSRv6(VppTestCase): # TODO: API? self.vapi.cli("set sr encaps source addr a3::") - bsid = 'a3::9999:1' + bsid = "a3::9999:1" # configure SRv6 Policy # Note: segment list order: first -> last sr_policy = VppSRv6Policy( - self, bsid=bsid, + self, + bsid=bsid, is_encap=1, sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT, - weight=1, fib_table=0, - segments=['a4::', 'a5::', 'a6::c7'], - source='a3::') + weight=1, + fib_table=0, + segments=["a4::", "a5::", "a6::c7"], + source="a3::", + ) sr_policy.add_vpp_config() self.sr_policy = sr_policy @@ -171,12 +174,15 @@ class TestSRv6(VppTestCase): # steer IPv6 traffic to a7::/64 into SRv6 Policy # use the bsid of the above self.sr_policy pol_steering = VppSRv6Steering( - self, - bsid=self.sr_policy.bsid, - prefix="a7::", mask_width=64, - traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV6, - sr_policy_index=0, table_id=0, - sw_if_index=0) + self, + bsid=self.sr_policy.bsid, + prefix="a7::", + mask_width=64, + traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV6, + sr_policy_index=0, + table_id=0, + sw_if_index=0, + ) pol_steering.add_vpp_config() # log the sr steering policies @@ -184,37 +190,46 @@ class TestSRv6(VppTestCase): # create packets count = len(self.pg_packet_sizes) - dst_inner = 'a7::1234' + dst_inner = "a7::1234" pkts = [] # create IPv6 packets without SRH packet_header = self.create_packet_header_IPv6(dst_inner) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # create IPv6 packets with SRH # packets with segments-left 1, active segment a7:: packet_header = self.create_packet_header_IPv6_SRH( - sidlist=['a8::', 'a7::', 'a6::'], - segleft=1) + sidlist=["a8::", "a7::", "a6::"], segleft=1 + ) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # create IPv6 packets with SRH and IPv6 # packets with segments-left 1, active segment a7:: packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a8::', 'a7::', 'a6::'], - segleft=1) + dst_inner, sidlist=["a8::", "a7::", "a6::"], segleft=1 + ) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_T_Encaps) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_T_Encaps + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -235,16 +250,15 @@ class TestSRv6(VppTestCase): @unittest.skipUnless(0, "PC to fix") def test_SRv6_T_Insert(self): - """ Test SRv6 Transit.Insert behavior (IPv6 only). - """ + """Test SRv6 Transit.Insert behavior (IPv6 only).""" # send traffic to one destination interface # source and destination are IPv6 only self.setup_interfaces(ipv6=[True, True]) # configure FIB entries - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) + route = VppIpRoute( + self, "a4::", 64, [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index)] + ) route.add_vpp_config() # configure encaps IPv6 source address @@ -252,16 +266,19 @@ class TestSRv6(VppTestCase): # TODO: API? self.vapi.cli("set sr encaps source addr a3::") - bsid = 'a3::9999:1' + bsid = "a3::9999:1" # configure SRv6 Policy # Note: segment list order: first -> last sr_policy = VppSRv6Policy( - self, bsid=bsid, + self, + bsid=bsid, is_encap=0, sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT, - weight=1, fib_table=0, - segments=['a4::', 'a5::', 'a6::c7'], - source='a3::') + weight=1, + fib_table=0, + segments=["a4::", "a5::", "a6::c7"], + source="a3::", + ) sr_policy.add_vpp_config() self.sr_policy = sr_policy @@ -271,12 +288,15 @@ class TestSRv6(VppTestCase): # steer IPv6 traffic to a7::/64 into SRv6 Policy # use the bsid of the above self.sr_policy pol_steering = VppSRv6Steering( - self, - bsid=self.sr_policy.bsid, - prefix="a7::", mask_width=64, - traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV6, - sr_policy_index=0, table_id=0, - sw_if_index=0) + self, + bsid=self.sr_policy.bsid, + prefix="a7::", + mask_width=64, + traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV6, + sr_policy_index=0, + table_id=0, + sw_if_index=0, + ) pol_steering.add_vpp_config() # log the sr steering policies @@ -284,27 +304,34 @@ class TestSRv6(VppTestCase): # create packets count = len(self.pg_packet_sizes) - dst_inner = 'a7::1234' + dst_inner = "a7::1234" pkts = [] # create IPv6 packets without SRH packet_header = self.create_packet_header_IPv6(dst_inner) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # create IPv6 packets with SRH # packets with segments-left 1, active segment a7:: packet_header = self.create_packet_header_IPv6_SRH( - sidlist=['a8::', 'a7::', 'a6::'], - segleft=1) + sidlist=["a8::", "a7::", "a6::"], segleft=1 + ) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_T_Insert) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_T_Insert + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -325,17 +352,16 @@ class TestSRv6(VppTestCase): @unittest.skipUnless(0, "PC to fix") def test_SRv6_T_Encaps_IPv4(self): - """ Test SRv6 Transit.Encaps behavior for IPv4. - """ + """Test SRv6 Transit.Encaps behavior for IPv4.""" # send traffic to one destination interface # source interface is IPv4 only # destination interface is IPv6 only self.setup_interfaces(ipv6=[False, True], ipv4=[True, False]) # configure FIB entries - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) + route = VppIpRoute( + self, "a4::", 64, [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index)] + ) route.add_vpp_config() # configure encaps IPv6 source address @@ -343,16 +369,19 @@ class TestSRv6(VppTestCase): # TODO: API? self.vapi.cli("set sr encaps source addr a3::") - bsid = 'a3::9999:1' + bsid = "a3::9999:1" # configure SRv6 Policy # Note: segment list order: first -> last sr_policy = VppSRv6Policy( - self, bsid=bsid, + self, + bsid=bsid, is_encap=1, sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT, - weight=1, fib_table=0, - segments=['a4::', 'a5::', 'a6::c7'], - source='a3::') + weight=1, + fib_table=0, + segments=["a4::", "a5::", "a6::c7"], + source="a3::", + ) sr_policy.add_vpp_config() self.sr_policy = sr_policy @@ -362,12 +391,15 @@ class TestSRv6(VppTestCase): # steer IPv4 traffic to 7.1.1.0/24 into SRv6 Policy # use the bsid of the above self.sr_policy pol_steering = VppSRv6Steering( - self, - bsid=self.sr_policy.bsid, - prefix="7.1.1.0", mask_width=24, - traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV4, - sr_policy_index=0, table_id=0, - sw_if_index=0) + self, + bsid=self.sr_policy.bsid, + prefix="7.1.1.0", + mask_width=24, + traffic_type=SRv6PolicySteeringTypes.SR_STEER_IPV4, + sr_policy_index=0, + table_id=0, + sw_if_index=0, + ) pol_steering.add_vpp_config() # log the sr steering policies @@ -375,18 +407,22 @@ class TestSRv6(VppTestCase): # create packets count = len(self.pg_packet_sizes) - dst_inner = '7.1.1.123' + dst_inner = "7.1.1.123" pkts = [] # create IPv4 packets packet_header = self.create_packet_header_IPv4(dst_inner) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_T_Encaps_IPv4) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_T_Encaps_IPv4 + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -407,17 +443,16 @@ class TestSRv6(VppTestCase): @unittest.skip("VPP crashes after running this test") def test_SRv6_T_Encaps_L2(self): - """ Test SRv6 Transit.Encaps behavior for L2. - """ + """Test SRv6 Transit.Encaps behavior for L2.""" # send traffic to one destination interface # source interface is IPv4 only TODO? # destination interface is IPv6 only self.setup_interfaces(ipv6=[False, True], ipv4=[False, False]) # configure FIB entries - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) + route = VppIpRoute( + self, "a4::", 64, [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index)] + ) route.add_vpp_config() # configure encaps IPv6 source address @@ -425,16 +460,19 @@ class TestSRv6(VppTestCase): # TODO: API? self.vapi.cli("set sr encaps source addr a3::") - bsid = 'a3::9999:1' + bsid = "a3::9999:1" # configure SRv6 Policy # Note: segment list order: first -> last sr_policy = VppSRv6Policy( - self, bsid=bsid, + self, + bsid=bsid, is_encap=1, sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT, - weight=1, fib_table=0, - segments=['a4::', 'a5::', 'a6::c7'], - source='a3::') + weight=1, + fib_table=0, + segments=["a4::", "a5::", "a6::c7"], + source="a3::", + ) sr_policy.add_vpp_config() self.sr_policy = sr_policy @@ -444,12 +482,15 @@ class TestSRv6(VppTestCase): # steer L2 traffic into SRv6 Policy # use the bsid of the above self.sr_policy pol_steering = VppSRv6Steering( - self, - bsid=self.sr_policy.bsid, - prefix="::", mask_width=0, - traffic_type=SRv6PolicySteeringTypes.SR_STEER_L2, - sr_policy_index=0, table_id=0, - sw_if_index=self.pg0.sw_if_index) + self, + bsid=self.sr_policy.bsid, + prefix="::", + mask_width=0, + traffic_type=SRv6PolicySteeringTypes.SR_STEER_L2, + sr_policy_index=0, + table_id=0, + sw_if_index=self.pg0.sw_if_index, + ) pol_steering.add_vpp_config() # log the sr steering policies @@ -462,18 +503,25 @@ class TestSRv6(VppTestCase): # create L2 packets without dot1q header packet_header = self.create_packet_header_L2() # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # create L2 packets with dot1q header packet_header = self.create_packet_header_L2(vlan=123) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_T_Encaps_L2) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_T_Encaps_L2 + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -493,27 +541,28 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End(self): - """ Test SRv6 End (without PSP) behavior. - """ + """Test SRv6 End (without PSP) behavior.""" # send traffic to one destination interface # source and destination interfaces are IPv6 only self.setup_interfaces(ipv6=[True, True]) # configure FIB entries - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) + route = VppIpRoute( + self, "a4::", 64, [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index)] + ) route.add_vpp_config() # configure SRv6 localSID End without PSP behavior localsid = VppSRv6LocalSID( - self, localsid='A3::0', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_END, - nh_addr=0, - end_psp=0, - sw_if_index=0, - vlan_index=0, - fib_table=0) + self, + localsid="A3::0", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_END, + nh_addr=0, + end_psp=0, + sw_if_index=0, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) @@ -522,41 +571,52 @@ class TestSRv6(VppTestCase): # send one packet per SL value per packet size # SL=0 packet with localSID End with USP needs 2nd SRH count = len(self.pg_packet_sizes) - dst_inner = 'a4::1234' + dst_inner = "a4::1234" pkts = [] # packets with segments-left 2, active segment a3:: packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a5::', 'a4::', 'a3::'], - segleft=2) + dst_inner, sidlist=["a5::", "a4::", "a3::"], segleft=2 + ) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets with segments-left 1, active segment a3:: packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a4::', 'a3::', 'a2::'], - segleft=1) + dst_inner, sidlist=["a4::", "a3::", "a2::"], segleft=1 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # TODO: test behavior with SL=0 packet (needs 2*SRH?) expected_count = len(pkts) # packets without SRH (should not crash) - packet_header = self.create_packet_header_IPv6('a3::') + packet_header = self.create_packet_header_IPv6("a3::") # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_End, - expected_count=expected_count) + self.send_and_verify_pkts( + self.pg0, + pkts, + self.pg1, + self.compare_rx_tx_packet_End, + expected_count=expected_count, + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -571,27 +631,28 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End_with_PSP(self): - """ Test SRv6 End with PSP behavior. - """ + """Test SRv6 End with PSP behavior.""" # send traffic to one destination interface # source and destination interfaces are IPv6 only self.setup_interfaces(ipv6=[True, True]) # configure FIB entries - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index)]) + route = VppIpRoute( + self, "a4::", 64, [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index)] + ) route.add_vpp_config() # configure SRv6 localSID End with PSP behavior localsid = VppSRv6LocalSID( - self, localsid='A3::0', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_END, - nh_addr=0, - end_psp=1, - sw_if_index=0, - vlan_index=0, - fib_table=0) + self, + localsid="A3::0", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_END, + nh_addr=0, + end_psp=1, + sw_if_index=0, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) @@ -600,30 +661,35 @@ class TestSRv6(VppTestCase): # send one packet per SL value per packet size # SL=0 packet with localSID End with PSP is dropped count = len(self.pg_packet_sizes) - dst_inner = 'a4::1234' + dst_inner = "a4::1234" pkts = [] # packets with segments-left 2, active segment a3:: packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a5::', 'a4::', 'a3::'], - segleft=2) + dst_inner, sidlist=["a5::", "a4::", "a3::"], segleft=2 + ) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets with segments-left 1, active segment a3:: packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a4::', 'a3::', 'a2::'], - segleft=1) + dst_inner, sidlist=["a4::", "a3::", "a2::"], segleft=1 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_End_PSP) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_End_PSP + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -638,32 +704,37 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End_X(self): - """ Test SRv6 End.X (without PSP) behavior. - """ + """Test SRv6 End.X (without PSP) behavior.""" # create three interfaces (1 source, 2 destinations) # source and destination interfaces are IPv6 only self.setup_interfaces(ipv6=[True, True, True]) # configure FIB entries # a4::/64 via pg1 and pg2 - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index), - VppRoutePath(self.pg2.remote_ip6, - self.pg2.sw_if_index)]) + route = VppIpRoute( + self, + "a4::", + 64, + [ + VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index), + VppRoutePath(self.pg2.remote_ip6, self.pg2.sw_if_index), + ], + ) route.add_vpp_config() self.logger.debug(self.vapi.cli("show ip6 fib")) # configure SRv6 localSID End.X without PSP behavior # End.X points to interface pg1 localsid = VppSRv6LocalSID( - self, localsid='A3::C4', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_X, - nh_addr=self.pg1.remote_ip6, - end_psp=0, - sw_if_index=self.pg1.sw_if_index, - vlan_index=0, - fib_table=0) + self, + localsid="A3::C4", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_X, + nh_addr=self.pg1.remote_ip6, + end_psp=0, + sw_if_index=self.pg1.sw_if_index, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) @@ -672,31 +743,36 @@ class TestSRv6(VppTestCase): # send one packet per SL value per packet size # SL=0 packet with localSID End with PSP is dropped count = len(self.pg_packet_sizes) - dst_inner = 'a4::1234' + dst_inner = "a4::1234" pkts = [] # packets with segments-left 2, active segment a3::c4 packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a5::', 'a4::', 'a3::c4'], - segleft=2) + dst_inner, sidlist=["a5::", "a4::", "a3::c4"], segleft=2 + ) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets with segments-left 1, active segment a3::c4 packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a4::', 'a3::c4', 'a2::'], - segleft=1) + dst_inner, sidlist=["a4::", "a3::c4", "a2::"], segleft=1 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets # using same comparison function as End (no PSP) - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_End) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_End + ) # assert nothing was received on the other interface (pg2) self.pg2.assert_nothing_captured(remark="mis-directed packet(s)") @@ -714,31 +790,35 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End_X_with_PSP(self): - """ Test SRv6 End.X with PSP behavior. - """ + """Test SRv6 End.X with PSP behavior.""" # create three interfaces (1 source, 2 destinations) # source and destination interfaces are IPv6 only self.setup_interfaces(ipv6=[True, True, True]) # configure FIB entries # a4::/64 via pg1 and pg2 - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath( - self.pg1.remote_ip6, - self.pg1.sw_if_index), - VppRoutePath(self.pg2.remote_ip6, - self.pg2.sw_if_index)]) + route = VppIpRoute( + self, + "a4::", + 64, + [ + VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index), + VppRoutePath(self.pg2.remote_ip6, self.pg2.sw_if_index), + ], + ) route.add_vpp_config() # configure SRv6 localSID End with PSP behavior localsid = VppSRv6LocalSID( - self, localsid='A3::C4', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_X, - nh_addr=self.pg1.remote_ip6, - end_psp=1, - sw_if_index=self.pg1.sw_if_index, - vlan_index=0, - fib_table=0) + self, + localsid="A3::C4", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_X, + nh_addr=self.pg1.remote_ip6, + end_psp=1, + sw_if_index=self.pg1.sw_if_index, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) @@ -747,31 +827,36 @@ class TestSRv6(VppTestCase): # send one packet per SL value per packet size # SL=0 packet with localSID End with PSP is dropped count = len(self.pg_packet_sizes) - dst_inner = 'a4::1234' + dst_inner = "a4::1234" pkts = [] # packets with segments-left 2, active segment a3:: packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a5::', 'a4::', 'a3::c4'], - segleft=2) + dst_inner, sidlist=["a5::", "a4::", "a3::c4"], segleft=2 + ) # create traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets with segments-left 1, active segment a3:: packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a4::', 'a3::c4', 'a2::'], - segleft=1) + dst_inner, sidlist=["a4::", "a3::c4", "a2::"], segleft=1 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets # using same comparison function as End with PSP - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_End_PSP) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_End_PSP + ) # assert nothing was received on the other interface (pg2) self.pg2.assert_nothing_captured(remark="mis-directed packet(s)") @@ -789,21 +874,22 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End_DX6(self): - """ Test SRv6 End.DX6 behavior. - """ + """Test SRv6 End.DX6 behavior.""" # send traffic to one destination interface # source and destination interfaces are IPv6 only self.setup_interfaces(ipv6=[True, True]) # configure SRv6 localSID End.DX6 behavior localsid = VppSRv6LocalSID( - self, localsid='A3::C4', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX6, - nh_addr=self.pg1.remote_ip6, - end_psp=0, - sw_if_index=self.pg1.sw_if_index, - vlan_index=0, - fib_table=0) + self, + localsid="A3::C4", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX6, + nh_addr=self.pg1.remote_ip6, + end_psp=0, + sw_if_index=self.pg1.sw_if_index, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) @@ -811,30 +897,36 @@ class TestSRv6(VppTestCase): # create IPv6 packets with SRH (SL=0) # send one packet per packet size count = len(self.pg_packet_sizes) - dst_inner = 'a4::1234' # inner header destination address + dst_inner = "a4::1234" # inner header destination address pkts = [] # packets with SRH, segments-left 0, active segment a3::c4 packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a3::c4', 'a2::', 'a1::'], - segleft=0) + dst_inner, sidlist=["a3::c4", "a2::", "a1::"], segleft=0 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets without SRH, IPv6 in IPv6 # outer IPv6 dest addr is the localsid End.DX6 packet_header = self.create_packet_header_IPv6_IPv6( - dst_inner, - dst_outer='a3::c4') + dst_inner, dst_outer="a3::c4" + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_End_DX6) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_End_DX6 + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -846,8 +938,7 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End_DT6(self): - """ Test SRv6 End.DT6 behavior. - """ + """Test SRv6 End.DT6 behavior.""" # create three interfaces (1 source, 2 destinations) # all interfaces are IPv6 only # source interface in global FIB (0) @@ -855,24 +946,31 @@ class TestSRv6(VppTestCase): vrf_1 = 1 ipt = VppIpTable(self, vrf_1, is_ip6=True) ipt.add_vpp_config() - self.setup_interfaces(ipv6=[True, True, True], - ipv6_table_id=[0, 0, vrf_1]) + self.setup_interfaces(ipv6=[True, True, True], ipv6_table_id=[0, 0, vrf_1]) # configure FIB entries # a4::/64 is reachable # via pg1 in table 0 (global) # and via pg2 in table vrf_1 - route0 = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg1.remote_ip6, - self.pg1.sw_if_index, - nh_table_id=0)], - table_id=0) + route0 = VppIpRoute( + self, + "a4::", + 64, + [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index, nh_table_id=0)], + table_id=0, + ) route0.add_vpp_config() - route1 = VppIpRoute(self, "a4::", 64, - [VppRoutePath(self.pg2.remote_ip6, - self.pg2.sw_if_index, - nh_table_id=vrf_1)], - table_id=vrf_1) + route1 = VppIpRoute( + self, + "a4::", + 64, + [ + VppRoutePath( + self.pg2.remote_ip6, self.pg2.sw_if_index, nh_table_id=vrf_1 + ) + ], + table_id=vrf_1, + ) route1.add_vpp_config() self.logger.debug(self.vapi.cli("show ip6 fib")) @@ -881,13 +979,15 @@ class TestSRv6(VppTestCase): # fib_table: where the localsid is installed # sw_if_index: in T-variants of localsid this is the vrf table_id localsid = VppSRv6LocalSID( - self, localsid='A3::C4', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DT6, - nh_addr=0, - end_psp=0, - sw_if_index=vrf_1, - vlan_index=0, - fib_table=0) + self, + localsid="A3::C4", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DT6, + nh_addr=0, + end_psp=0, + sw_if_index=vrf_1, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) @@ -895,31 +995,37 @@ class TestSRv6(VppTestCase): # create IPv6 packets with SRH (SL=0) # send one packet per packet size count = len(self.pg_packet_sizes) - dst_inner = 'a4::1234' # inner header destination address + dst_inner = "a4::1234" # inner header destination address pkts = [] # packets with SRH, segments-left 0, active segment a3::c4 packet_header = self.create_packet_header_IPv6_SRH_IPv6( - dst_inner, - sidlist=['a3::c4', 'a2::', 'a1::'], - segleft=0) + dst_inner, sidlist=["a3::c4", "a2::", "a1::"], segleft=0 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg2, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg2, packet_header, self.pg_packet_sizes, count + ) + ) # packets without SRH, IPv6 in IPv6 # outer IPv6 dest addr is the localsid End.DT6 packet_header = self.create_packet_header_IPv6_IPv6( - dst_inner, - dst_outer='a3::c4') + dst_inner, dst_outer="a3::c4" + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg2, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg2, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets # using same comparison function as End.DX6 - self.send_and_verify_pkts(self.pg0, pkts, self.pg2, - self.compare_rx_tx_packet_End_DX6) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg2, self.compare_rx_tx_packet_End_DX6 + ) # assert nothing was received on the other interface (pg2) self.pg1.assert_nothing_captured(remark="mis-directed packet(s)") @@ -937,8 +1043,7 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End_DX4(self): - """ Test SRv6 End.DX4 behavior. - """ + """Test SRv6 End.DX4 behavior.""" # send traffic to one destination interface # source interface is IPv6 only # destination interface is IPv4 only @@ -946,43 +1051,51 @@ class TestSRv6(VppTestCase): # configure SRv6 localSID End.DX4 behavior localsid = VppSRv6LocalSID( - self, localsid='A3::C4', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX4, - nh_addr=self.pg1.remote_ip4, - end_psp=0, - sw_if_index=self.pg1.sw_if_index, - vlan_index=0, - fib_table=0) + self, + localsid="A3::C4", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX4, + nh_addr=self.pg1.remote_ip4, + end_psp=0, + sw_if_index=self.pg1.sw_if_index, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) # send one packet per packet size count = len(self.pg_packet_sizes) - dst_inner = '4.1.1.123' # inner header destination address + dst_inner = "4.1.1.123" # inner header destination address pkts = [] # packets with SRH, segments-left 0, active segment a3::c4 packet_header = self.create_packet_header_IPv6_SRH_IPv4( - dst_inner, - sidlist=['a3::c4', 'a2::', 'a1::'], - segleft=0) + dst_inner, sidlist=["a3::c4", "a2::", "a1::"], segleft=0 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets without SRH, IPv4 in IPv6 # outer IPv6 dest addr is the localsid End.DX4 packet_header = self.create_packet_header_IPv6_IPv4( - dst_inner, - dst_outer='a3::c4') + dst_inner, dst_outer="a3::c4" + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_End_DX4) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_End_DX4 + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -994,8 +1107,7 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End_DT4(self): - """ Test SRv6 End.DT4 behavior. - """ + """Test SRv6 End.DT4 behavior.""" # create three interfaces (1 source, 2 destinations) # source interface is IPv6-only # destination interfaces are IPv4 only @@ -1004,26 +1116,36 @@ class TestSRv6(VppTestCase): vrf_1 = 1 ipt = VppIpTable(self, vrf_1) ipt.add_vpp_config() - self.setup_interfaces(ipv6=[True, False, False], - ipv4=[False, True, True], - ipv6_table_id=[0, 0, 0], - ipv4_table_id=[0, 0, vrf_1]) + self.setup_interfaces( + ipv6=[True, False, False], + ipv4=[False, True, True], + ipv6_table_id=[0, 0, 0], + ipv4_table_id=[0, 0, vrf_1], + ) # configure FIB entries # 4.1.1.0/24 is reachable # via pg1 in table 0 (global) # and via pg2 in table vrf_1 - route0 = VppIpRoute(self, "4.1.1.0", 24, - [VppRoutePath(self.pg1.remote_ip4, - self.pg1.sw_if_index, - nh_table_id=0)], - table_id=0) + route0 = VppIpRoute( + self, + "4.1.1.0", + 24, + [VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index, nh_table_id=0)], + table_id=0, + ) route0.add_vpp_config() - route1 = VppIpRoute(self, "4.1.1.0", 24, - [VppRoutePath(self.pg2.remote_ip4, - self.pg2.sw_if_index, - nh_table_id=vrf_1)], - table_id=vrf_1) + route1 = VppIpRoute( + self, + "4.1.1.0", + 24, + [ + VppRoutePath( + self.pg2.remote_ip4, self.pg2.sw_if_index, nh_table_id=vrf_1 + ) + ], + table_id=vrf_1, + ) route1.add_vpp_config() self.logger.debug(self.vapi.cli("show ip fib")) @@ -1032,13 +1154,15 @@ class TestSRv6(VppTestCase): # fib_table: where the localsid is installed # sw_if_index: in T-variants of localsid: vrf table_id localsid = VppSRv6LocalSID( - self, localsid='A3::C4', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DT4, - nh_addr=0, - end_psp=0, - sw_if_index=vrf_1, - vlan_index=0, - fib_table=0) + self, + localsid="A3::C4", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DT4, + nh_addr=0, + end_psp=0, + sw_if_index=vrf_1, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) @@ -1046,31 +1170,37 @@ class TestSRv6(VppTestCase): # create IPv6 packets with SRH (SL=0) # send one packet per packet size count = len(self.pg_packet_sizes) - dst_inner = '4.1.1.123' # inner header destination address + dst_inner = "4.1.1.123" # inner header destination address pkts = [] # packets with SRH, segments-left 0, active segment a3::c4 packet_header = self.create_packet_header_IPv6_SRH_IPv4( - dst_inner, - sidlist=['a3::c4', 'a2::', 'a1::'], - segleft=0) + dst_inner, sidlist=["a3::c4", "a2::", "a1::"], segleft=0 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg2, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg2, packet_header, self.pg_packet_sizes, count + ) + ) # packets without SRH, IPv6 in IPv6 # outer IPv6 dest addr is the localsid End.DX4 packet_header = self.create_packet_header_IPv6_IPv4( - dst_inner, - dst_outer='a3::c4') + dst_inner, dst_outer="a3::c4" + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg2, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg2, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets # using same comparison function as End.DX4 - self.send_and_verify_pkts(self.pg0, pkts, self.pg2, - self.compare_rx_tx_packet_End_DX4) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg2, self.compare_rx_tx_packet_End_DX4 + ) # assert nothing was received on the other interface (pg2) self.pg1.assert_nothing_captured(remark="mis-directed packet(s)") @@ -1088,21 +1218,22 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def test_SRv6_End_DX2(self): - """ Test SRv6 End.DX2 behavior. - """ + """Test SRv6 End.DX2 behavior.""" # send traffic to one destination interface # source interface is IPv6 only self.setup_interfaces(ipv6=[True, False], ipv4=[False, False]) # configure SRv6 localSID End.DX2 behavior localsid = VppSRv6LocalSID( - self, localsid='A3::C4', - behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX2, - nh_addr=0, - end_psp=0, - sw_if_index=self.pg1.sw_if_index, - vlan_index=0, - fib_table=0) + self, + localsid="A3::C4", + behavior=SRv6LocalSIDBehaviors.SR_BEHAVIOR_DX2, + nh_addr=0, + end_psp=0, + sw_if_index=self.pg1.sw_if_index, + vlan_index=0, + fib_table=0, + ) localsid.add_vpp_config() # log the localsids self.logger.debug(self.vapi.cli("show sr localsid")) @@ -1114,46 +1245,53 @@ class TestSRv6(VppTestCase): # packets with SRH, segments-left 0, active segment a3::c4 # L2 has no dot1q header packet_header = self.create_packet_header_IPv6_SRH_L2( - sidlist=['a3::c4', 'a2::', 'a1::'], - segleft=0, - vlan=0) + sidlist=["a3::c4", "a2::", "a1::"], segleft=0, vlan=0 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets with SRH, segments-left 0, active segment a3::c4 # L2 has dot1q header packet_header = self.create_packet_header_IPv6_SRH_L2( - sidlist=['a3::c4', 'a2::', 'a1::'], - segleft=0, - vlan=123) + sidlist=["a3::c4", "a2::", "a1::"], segleft=0, vlan=123 + ) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets without SRH, L2 in IPv6 # outer IPv6 dest addr is the localsid End.DX2 # L2 has no dot1q header - packet_header = self.create_packet_header_IPv6_L2( - dst_outer='a3::c4', - vlan=0) + packet_header = self.create_packet_header_IPv6_L2(dst_outer="a3::c4", vlan=0) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # packets without SRH, L2 in IPv6 # outer IPv6 dest addr is the localsid End.DX2 # L2 has dot1q header - packet_header = self.create_packet_header_IPv6_L2( - dst_outer='a3::c4', - vlan=123) + packet_header = self.create_packet_header_IPv6_L2(dst_outer="a3::c4", vlan=123) # add to traffic stream pg0->pg1 - pkts.extend(self.create_stream(self.pg0, self.pg1, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg0, self.pg1, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg0, pkts, self.pg1, - self.compare_rx_tx_packet_End_DX2) + self.send_and_verify_pkts( + self.pg0, pkts, self.pg1, self.compare_rx_tx_packet_End_DX2 + ) # log the localsid counters self.logger.info(self.vapi.cli("show sr localsid")) @@ -1166,18 +1304,17 @@ class TestSRv6(VppTestCase): @unittest.skipUnless(0, "PC to fix") def test_SRv6_T_Insert_Classifier(self): - """ Test SRv6 Transit.Insert behavior (IPv6 only). - steer packets using the classifier + """Test SRv6 Transit.Insert behavior (IPv6 only). + steer packets using the classifier """ # send traffic to one destination interface # source and destination are IPv6 only self.setup_interfaces(ipv6=[False, False, False, True, True]) # configure FIB entries - route = VppIpRoute(self, "a4::", 64, - [VppRoutePath( - self.pg4.remote_ip6, - self.pg4.sw_if_index)]) + route = VppIpRoute( + self, "a4::", 64, [VppRoutePath(self.pg4.remote_ip6, self.pg4.sw_if_index)] + ) route.add_vpp_config() # configure encaps IPv6 source address @@ -1185,16 +1322,19 @@ class TestSRv6(VppTestCase): # TODO: API? self.vapi.cli("set sr encaps source addr a3::") - bsid = 'a3::9999:1' + bsid = "a3::9999:1" # configure SRv6 Policy # Note: segment list order: first -> last sr_policy = VppSRv6Policy( - self, bsid=bsid, + self, + bsid=bsid, is_encap=0, sr_type=SRv6PolicyType.SR_POLICY_TYPE_DEFAULT, - weight=1, fib_table=0, - segments=['a4::', 'a5::', 'a6::c7'], - source='a3::') + weight=1, + fib_table=0, + segments=["a4::", "a5::", "a6::c7"], + source="a3::", + ) sr_policy.add_vpp_config() self.sr_policy = sr_policy @@ -1203,75 +1343,79 @@ class TestSRv6(VppTestCase): # add classify table # mask on dst ip address prefix a7::/8 - mask = '{!s:0<16}'.format('ff') + mask = "{!s:0<16}".format("ff") r = self.vapi.classify_add_del_table( 1, binascii.unhexlify(mask), match_n_vectors=(len(mask) - 1) // 32 + 1, current_data_flag=1, - skip_n_vectors=2) # data offset - self.assertIsNotNone(r, 'No response msg for add_del_table') + skip_n_vectors=2, + ) # data offset + self.assertIsNotNone(r, "No response msg for add_del_table") table_index = r.new_table_index # add the source routing node as a ip6 inacl netxt node - r = self.vapi.add_node_next('ip6-inacl', - 'sr-pl-rewrite-insert') + r = self.vapi.add_node_next("ip6-inacl", "sr-pl-rewrite-insert") inacl_next_node_index = r.node_index - match = '{!s:0<16}'.format('a7') + match = "{!s:0<16}".format("a7") r = self.vapi.classify_add_del_session( 1, table_index, binascii.unhexlify(match), hit_next_index=inacl_next_node_index, action=3, - metadata=0) # sr policy index - self.assertIsNotNone(r, 'No response msg for add_del_session') + metadata=0, + ) # sr policy index + self.assertIsNotNone(r, "No response msg for add_del_session") # log the classify table used in the steering policy self.logger.info(self.vapi.cli("show classify table")) r = self.vapi.input_acl_set_interface( - is_add=1, - sw_if_index=self.pg3.sw_if_index, - ip6_table_index=table_index) - self.assertIsNotNone(r, - 'No response msg for input_acl_set_interface') + is_add=1, sw_if_index=self.pg3.sw_if_index, ip6_table_index=table_index + ) + self.assertIsNotNone(r, "No response msg for input_acl_set_interface") # log the ip6 inacl self.logger.info(self.vapi.cli("show inacl type ip6")) # create packets count = len(self.pg_packet_sizes) - dst_inner = 'a7::1234' + dst_inner = "a7::1234" pkts = [] # create IPv6 packets without SRH packet_header = self.create_packet_header_IPv6(dst_inner) # create traffic stream pg3->pg4 - pkts.extend(self.create_stream(self.pg3, self.pg4, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg3, self.pg4, packet_header, self.pg_packet_sizes, count + ) + ) # create IPv6 packets with SRH # packets with segments-left 1, active segment a7:: packet_header = self.create_packet_header_IPv6_SRH( - sidlist=['a8::', 'a7::', 'a6::'], - segleft=1) + sidlist=["a8::", "a7::", "a6::"], segleft=1 + ) # create traffic stream pg3->pg4 - pkts.extend(self.create_stream(self.pg3, self.pg4, packet_header, - self.pg_packet_sizes, count)) + pkts.extend( + self.create_stream( + self.pg3, self.pg4, packet_header, self.pg_packet_sizes, count + ) + ) # send packets and verify received packets - self.send_and_verify_pkts(self.pg3, pkts, self.pg4, - self.compare_rx_tx_packet_T_Insert) + self.send_and_verify_pkts( + self.pg3, pkts, self.pg4, self.compare_rx_tx_packet_T_Insert + ) # remove the interface l2 input feature r = self.vapi.input_acl_set_interface( - is_add=0, - sw_if_index=self.pg3.sw_if_index, - ip6_table_index=table_index) - self.assertIsNotNone(r, - 'No response msg for input_acl_set_interface') + is_add=0, sw_if_index=self.pg3.sw_if_index, ip6_table_index=table_index + ) + self.assertIsNotNone(r, "No response msg for input_acl_set_interface") # log the ip6 inacl after cleaning self.logger.info(self.vapi.cli("show inacl type ip6")) @@ -1289,16 +1433,14 @@ class TestSRv6(VppTestCase): # remove classify session and table r = self.vapi.classify_add_del_session( - 0, - table_index, - binascii.unhexlify(match)) - self.assertIsNotNone(r, 'No response msg for add_del_session') + 0, table_index, binascii.unhexlify(match) + ) + self.assertIsNotNone(r, "No response msg for add_del_session") r = self.vapi.classify_add_del_table( - 0, - binascii.unhexlify(mask), - table_index=table_index) - self.assertIsNotNone(r, 'No response msg for add_del_table') + 0, binascii.unhexlify(mask), table_index=table_index + ) + self.assertIsNotNone(r, "No response msg for add_del_table") self.logger.info(self.vapi.cli("show classify table")) @@ -1309,7 +1451,7 @@ class TestSRv6(VppTestCase): self.teardown_interfaces() def compare_rx_tx_packet_T_Encaps(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing T.Encaps + """Compare input and output packet after passing T.Encaps :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1350,7 +1492,7 @@ class TestSRv6(VppTestCase): # rx'ed seglist should be equal to expected seglist self.assertEqual(rx_srh.addresses, tx_seglist) # segleft should be equal to size expected seglist-1 - self.assertEqual(rx_srh.segleft, len(tx_seglist)-1) + self.assertEqual(rx_srh.segleft, len(tx_seglist) - 1) # segleft should be equal to lastentry self.assertEqual(rx_srh.segleft, rx_srh.lastentry) @@ -1364,7 +1506,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") def compare_rx_tx_packet_T_Encaps_IPv4(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing T.Encaps for IPv4 + """Compare input and output packet after passing T.Encaps for IPv4 :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1404,7 +1546,7 @@ class TestSRv6(VppTestCase): # rx'ed seglist should be equal to seglist self.assertEqual(rx_srh.addresses, tx_seglist) # segleft should be equal to size seglist-1 - self.assertEqual(rx_srh.segleft, len(tx_seglist)-1) + self.assertEqual(rx_srh.segleft, len(tx_seglist) - 1) # segleft should be equal to lastentry self.assertEqual(rx_srh.segleft, rx_srh.lastentry) @@ -1423,7 +1565,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") def compare_rx_tx_packet_T_Encaps_L2(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing T.Encaps for L2 + """Compare input and output packet after passing T.Encaps for L2 :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1461,7 +1603,7 @@ class TestSRv6(VppTestCase): # rx'ed seglist should be equal to seglist self.assertEqual(rx_srh.addresses, tx_seglist) # segleft should be equal to size seglist-1 - self.assertEqual(rx_srh.segleft, len(tx_seglist)-1) + self.assertEqual(rx_srh.segleft, len(tx_seglist) - 1) # segleft should be equal to lastentry self.assertEqual(rx_srh.segleft, rx_srh.lastentry) # nh should be "No Next Header" (143) @@ -1473,7 +1615,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") def compare_rx_tx_packet_T_Insert(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing T.Insert + """Compare input and output packet after passing T.Insert :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1529,7 +1671,7 @@ class TestSRv6(VppTestCase): # rx'ed seglist should be equal to expected seglist self.assertEqual(rx_srh.addresses, tx_seglist) # segleft should be equal to size(expected seglist)-1 - self.assertEqual(rx_srh.segleft, len(tx_seglist)-1) + self.assertEqual(rx_srh.segleft, len(tx_seglist) - 1) # segleft should be equal to lastentry self.assertEqual(rx_srh.segleft, rx_srh.lastentry) @@ -1556,7 +1698,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") def compare_rx_tx_packet_End(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing End (without PSP) + """Compare input and output packet after passing End (without PSP) :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1596,7 +1738,7 @@ class TestSRv6(VppTestCase): # sidlist should be unchanged self.assertEqual(rx_srh.addresses, tx_srh.addresses) # segleft should have been decremented - self.assertEqual(rx_srh.segleft, tx_srh.segleft-1) + self.assertEqual(rx_srh.segleft, tx_srh.segleft - 1) # received ip.dst should be equal to sidlist[segleft] self.assertEqual(rx_ip.dst, rx_srh.addresses[rx_srh.segleft]) # lastentry should be unchanged @@ -1605,7 +1747,7 @@ class TestSRv6(VppTestCase): self.assertEqual(rx_ip2.src, tx_ip2.src) self.assertEqual(rx_ip2.dst, tx_ip2.dst) # else: # tx_ip.segleft == 0 - # TODO: Does this work with 2 SRHs in ingress packet? + # TODO: Does this work with 2 SRHs in ingress packet? # UDP layer should be unchanged self.assertEqual(rx_udp, tx_udp) @@ -1613,7 +1755,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") def compare_rx_tx_packet_End_PSP(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing End with PSP + """Compare input and output packet after passing End with PSP :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1658,7 +1800,7 @@ class TestSRv6(VppTestCase): # sidlist should be unchanged self.assertEqual(rx_srh.addresses, tx_srh.addresses) # segleft should have been decremented - self.assertEqual(rx_srh.segleft, tx_srh.segleft-1) + self.assertEqual(rx_srh.segleft, tx_srh.segleft - 1) # received ip.dst should be equal to sidlist[segleft] self.assertEqual(rx_ip.dst, rx_srh.addresses[rx_srh.segleft]) # lastentry should be unchanged @@ -1674,7 +1816,7 @@ class TestSRv6(VppTestCase): # outer IPv6 header ip.src should be equal to tx'ed ip.src self.assertEqual(rx_ip.src, tx_ip.src) # outer IPv6 header ip.dst should be = to tx'ed sidlist[segleft-1] - self.assertEqual(rx_ip.dst, tx_srh.addresses[tx_srh.segleft-1]) + self.assertEqual(rx_ip.dst, tx_srh.addresses[tx_srh.segleft - 1]) # UDP layer should be unchanged self.assertEqual(rx_udp, tx_udp) @@ -1682,7 +1824,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") def compare_rx_tx_packet_End_DX6(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing End.DX6 + """Compare input and output packet after passing End.DX6 :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1714,7 +1856,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") def compare_rx_tx_packet_End_DX4(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing End.DX4 + """Compare input and output packet after passing End.DX4 :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1751,7 +1893,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") def compare_rx_tx_packet_End_DX2(self, tx_pkt, rx_pkt): - """ Compare input and output packet after passing End.DX2 + """Compare input and output packet after passing End.DX2 :param tx_pkt: transmitted packet :param rx_pkt: received packet @@ -1780,8 +1922,7 @@ class TestSRv6(VppTestCase): self.logger.debug("packet verification: SUCCESS") - def create_stream(self, src_if, dst_if, packet_header, packet_sizes, - count): + def create_stream(self, src_if, dst_if, packet_header, packet_sizes, count): """Create SRv6 input packet stream for defined interface. :param VppInterface src_if: Interface to create packet stream for @@ -1796,19 +1937,19 @@ class TestSRv6(VppTestCase): """ self.logger.info("Creating packets") pkts = [] - for i in range(0, count-1): + for i in range(0, count - 1): payload_info = self.create_packet_info(src_if, dst_if) - self.logger.debug( - "Creating packet with index %d" % (payload_info.index)) + self.logger.debug("Creating packet with index %d" % (payload_info.index)) payload = self.info_to_payload(payload_info) # add L2 header if not yet provided in packet_header - if packet_header.getlayer(0).name == 'Ethernet': - p = (packet_header / - Raw(payload)) + if packet_header.getlayer(0).name == "Ethernet": + p = packet_header / Raw(payload) else: - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - packet_header / - Raw(payload)) + p = ( + Ether(dst=src_if.local_mac, src=src_if.remote_mac) + / packet_header + / Raw(payload) + ) size = packet_sizes[i % len(packet_sizes)] self.logger.debug("Packet size %d" % (size)) self.extend_packet(p, size) @@ -1823,8 +1964,9 @@ class TestSRv6(VppTestCase): self.logger.info("Done creating packets") return pkts - def send_and_verify_pkts(self, input, pkts, output, compare_func, - expected_count=None): + def send_and_verify_pkts( + self, input, pkts, output, compare_func, expected_count=None + ): """Send packets and verify received packets using compare_func :param input: ingress interface of DUT @@ -1863,8 +2005,7 @@ class TestSRv6(VppTestCase): UDP source port and destination port are 1234 """ - p = (IPv6(src='1234::1', dst=dst) / - UDP(sport=1234, dport=1234)) + p = IPv6(src="1234::1", dst=dst) / UDP(sport=1234, dport=1234) return p def create_packet_header_IPv6_SRH(self, sidlist, segleft): @@ -1878,9 +2019,11 @@ class TestSRv6(VppTestCase): UDP source port and destination port are 1234 """ - p = (IPv6(src='1234::1', dst=sidlist[segleft]) / - IPv6ExtHdrSegmentRouting(addresses=sidlist) / - UDP(sport=1234, dport=1234)) + p = ( + IPv6(src="1234::1", dst=sidlist[segleft]) + / IPv6ExtHdrSegmentRouting(addresses=sidlist) + / UDP(sport=1234, dport=1234) + ) return p def create_packet_header_IPv6_SRH_IPv6(self, dst, sidlist, segleft): @@ -1896,11 +2039,12 @@ class TestSRv6(VppTestCase): UDP source port and destination port are 1234 """ - p = (IPv6(src='1234::1', dst=sidlist[segleft]) / - IPv6ExtHdrSegmentRouting(addresses=sidlist, - segleft=segleft, nh=41) / - IPv6(src='4321::1', dst=dst) / - UDP(sport=1234, dport=1234)) + p = ( + IPv6(src="1234::1", dst=sidlist[segleft]) + / IPv6ExtHdrSegmentRouting(addresses=sidlist, segleft=segleft, nh=41) + / IPv6(src="4321::1", dst=dst) + / UDP(sport=1234, dport=1234) + ) return p def create_packet_header_IPv6_IPv6(self, dst_inner, dst_outer): @@ -1914,13 +2058,16 @@ class TestSRv6(VppTestCase): UDP source port and destination port are 1234 """ - p = (IPv6(src='1234::1', dst=dst_outer) / - IPv6(src='4321::1', dst=dst_inner) / - UDP(sport=1234, dport=1234)) + p = ( + IPv6(src="1234::1", dst=dst_outer) + / IPv6(src="4321::1", dst=dst_inner) + / UDP(sport=1234, dport=1234) + ) return p - def create_packet_header_IPv6_SRH_SRH_IPv6(self, dst, sidlist1, segleft1, - sidlist2, segleft2): + def create_packet_header_IPv6_SRH_SRH_IPv6( + self, dst, sidlist1, segleft1, sidlist2, segleft2 + ): """Create packet header: IPv6 encapsulated in SRv6 with 2 SRH: IPv6 header with SRH, 2nd SRH, IPv6 header, UDP header @@ -1935,13 +2082,13 @@ class TestSRv6(VppTestCase): UDP source port and destination port are 1234 """ - p = (IPv6(src='1234::1', dst=sidlist1[segleft1]) / - IPv6ExtHdrSegmentRouting(addresses=sidlist1, - segleft=segleft1, nh=43) / - IPv6ExtHdrSegmentRouting(addresses=sidlist2, - segleft=segleft2, nh=41) / - IPv6(src='4321::1', dst=dst) / - UDP(sport=1234, dport=1234)) + p = ( + IPv6(src="1234::1", dst=sidlist1[segleft1]) + / IPv6ExtHdrSegmentRouting(addresses=sidlist1, segleft=segleft1, nh=43) + / IPv6ExtHdrSegmentRouting(addresses=sidlist2, segleft=segleft2, nh=41) + / IPv6(src="4321::1", dst=dst) + / UDP(sport=1234, dport=1234) + ) return p def create_packet_header_IPv4(self, dst): @@ -1953,8 +2100,7 @@ class TestSRv6(VppTestCase): UDP source port and destination port are 1234 """ - p = (IP(src='123.1.1.1', dst=dst) / - UDP(sport=1234, dport=1234)) + p = IP(src="123.1.1.1", dst=dst) / UDP(sport=1234, dport=1234) return p def create_packet_header_IPv6_IPv4(self, dst_inner, dst_outer): @@ -1969,9 +2115,11 @@ class TestSRv6(VppTestCase): UDP source port and destination port are 1234 """ - p = (IPv6(src='1234::1', dst=dst_outer) / - IP(src='123.1.1.1', dst=dst_inner) / - UDP(sport=1234, dport=1234)) + p = ( + IPv6(src="1234::1", dst=dst_outer) + / IP(src="123.1.1.1", dst=dst_inner) + / UDP(sport=1234, dport=1234) + ) return p def create_packet_header_IPv6_SRH_IPv4(self, dst, sidlist, segleft): @@ -1988,11 +2136,12 @@ class TestSRv6(VppTestCase): UDP source port and destination port are 1234 """ - p = (IPv6(src='1234::1', dst=sidlist[segleft]) / - IPv6ExtHdrSegmentRouting(addresses=sidlist, - segleft=segleft, nh=4) / - IP(src='123.1.1.1', dst=dst) / - UDP(sport=1234, dport=1234)) + p = ( + IPv6(src="1234::1", dst=sidlist[segleft]) + / IPv6ExtHdrSegmentRouting(addresses=sidlist, segleft=segleft, nh=4) + / IP(src="123.1.1.1", dst=dst) + / UDP(sport=1234, dport=1234) + ) return p def create_packet_header_L2(self, vlan=0): @@ -2003,7 +2152,7 @@ class TestSRv6(VppTestCase): # Note: the dst addr ('00:55:44:33:22:11') is used in # the compare function compare_rx_tx_packet_T_Encaps_L2 # to detect presence of L2 in SRH payload - p = Ether(src='00:11:22:33:44:55', dst='00:55:44:33:22:11') + p = Ether(src="00:11:22:33:44:55", dst="00:55:44:33:22:11") etype = 0x8137 # IPX if vlan: # add 802.1q layer @@ -2023,7 +2172,7 @@ class TestSRv6(VppTestCase): Outer IPv6 destination address is set to sidlist[segleft] IPv6 source address is 1234::1 """ - eth = Ether(src='00:11:22:33:44:55', dst='00:55:44:33:22:11') + eth = Ether(src="00:11:22:33:44:55", dst="00:55:44:33:22:11") etype = 0x8137 # IPX if vlan: # add 802.1q layer @@ -2031,10 +2180,11 @@ class TestSRv6(VppTestCase): else: eth.type = etype - p = (IPv6(src='1234::1', dst=sidlist[segleft]) / - IPv6ExtHdrSegmentRouting(addresses=sidlist, - segleft=segleft, nh=143) / - eth) + p = ( + IPv6(src="1234::1", dst=sidlist[segleft]) + / IPv6ExtHdrSegmentRouting(addresses=sidlist, segleft=segleft, nh=143) + / eth + ) return p def create_packet_header_IPv6_L2(self, dst_outer, vlan=0): @@ -2044,7 +2194,7 @@ class TestSRv6(VppTestCase): :param ipv6address dst_outer: outer IPv6 destination address :param vlan: L2 vlan; if vlan!=0 then add 802.1q header """ - eth = Ether(src='00:11:22:33:44:55', dst='00:55:44:33:22:11') + eth = Ether(src="00:11:22:33:44:55", dst="00:55:44:33:22:11") etype = 0x8137 # IPX if vlan: # add 802.1q layer @@ -2052,12 +2202,11 @@ class TestSRv6(VppTestCase): else: eth.type = etype - p = (IPv6(src='1234::1', dst=dst_outer, nh=143) / eth) + p = IPv6(src="1234::1", dst=dst_outer, nh=143) / eth return p def get_payload_info(self, packet): - """ Extract the payload_info from the packet - """ + """Extract the payload_info from the packet""" # in most cases, payload_info is in packet[Raw] # but packet[Raw] gives the complete payload # (incl L2 header) for the T.Encaps L2 case @@ -2068,8 +2217,7 @@ class TestSRv6(VppTestCase): # remote L2 header from packet[Raw]: # take packet[Raw], convert it to an Ether layer # and then extract Raw from it - payload_info = self.payload_to_info( - Ether(scapy.compat.r(packet[Raw]))[Raw]) + payload_info = self.payload_to_info(Ether(scapy.compat.r(packet[Raw]))[Raw]) return payload_info @@ -2082,8 +2230,10 @@ class TestSRv6(VppTestCase): :param capture: captured packets :param compare_func: function to compare in and out packet """ - self.logger.info("Verifying capture on interface %s using function %s" - % (dst_if.name, compare_func.__name__)) + self.logger.info( + "Verifying capture on interface %s using function %s" + % (dst_if.name, compare_func.__name__) + ) last_info = dict() for i in self.pg_interfaces: @@ -2096,19 +2246,19 @@ class TestSRv6(VppTestCase): payload_info = self.get_payload_info(packet) packet_index = payload_info.index - self.logger.debug("Verifying packet with index %d" - % (packet_index)) + self.logger.debug("Verifying packet with index %d" % (packet_index)) # packet should have arrived on the expected interface self.assertEqual(payload_info.dst, dst_sw_if_index) self.logger.debug( - "Got packet on interface %s: src=%u (idx=%u)" % - (dst_if.name, payload_info.src, packet_index)) + "Got packet on interface %s: src=%u (idx=%u)" + % (dst_if.name, payload_info.src, packet_index) + ) # search for payload_info with same src and dst if_index # this will give us the transmitted packet next_info = self.get_next_packet_info_for_interface2( - payload_info.src, dst_sw_if_index, - last_info[payload_info.src]) + payload_info.src, dst_sw_if_index, last_info[payload_info.src] + ) last_info[payload_info.src] = next_info # next_info should not be None self.assertTrue(next_info is not None) @@ -2117,8 +2267,9 @@ class TestSRv6(VppTestCase): # data field of next_info contains the tx packet txed_packet = next_info.data - self.logger.debug(ppp("Transmitted packet:", - txed_packet)) # ppp=Pretty Print Packet + self.logger.debug( + ppp("Transmitted packet:", txed_packet) + ) # ppp=Pretty Print Packet self.logger.debug(ppp("Received packet:", packet)) @@ -2143,5 +2294,5 @@ class TestSRv6(VppTestCase): # "didn't arrive" % (dst_if.name, i.name)) -if __name__ == '__main__': +if __name__ == "__main__": unittest.main(testRunner=VppTestRunner) |