X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_l2_flood.py;h=9e77fa172664e953ece18a41af75cb15ba9de0b8;hb=06bbab0c45c805544c981b8765ea3d85760d66a8;hp=50a692e57e8da82dbb43facb6acfd30fd47ccafa;hpb=b474380f82b75d9640f9bf6ee78c891a6794dbfb;p=vpp.git diff --git a/test/test_l2_flood.py b/test/test_l2_flood.py index 50a692e57e8..9e77fa17266 100644 --- a/test/test_l2_flood.py +++ b/test/test_l2_flood.py @@ -1,106 +1,129 @@ -#!/usr/bin/env python +#!/usr/bin/env python3 import unittest import socket from framework import VppTestCase, VppTestRunner from vpp_ip_route import VppIpRoute, VppRoutePath -from vpp_papi_provider import L2_PORT_TYPE, BRIDGE_FLAGS +from vpp_l2 import L2_PORT_TYPE, BRIDGE_FLAGS from scapy.packet import Raw from scapy.layers.l2 import Ether from scapy.layers.inet import IP, UDP +NUM_PKTS = 67 + class TestL2Flood(VppTestCase): - """ L2-flood """ + """L2-flood""" + + @classmethod + def setUpClass(cls): + super(TestL2Flood, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestL2Flood, cls).tearDownClass() def setUp(self): super(TestL2Flood, self).setUp() # 12 l2 interface and one l3 self.create_pg_interfaces(range(13)) - self.create_loopback_interfaces(1) + self.create_bvi_interfaces(1) for i in self.pg_interfaces: i.admin_up() - for i in self.lo_interfaces: + for i in self.bvi_interfaces: i.admin_up() self.pg12.config_ip4() self.pg12.resolve_arp() - self.loop0.config_ip4() + self.bvi0.config_ip4() def tearDown(self): self.pg12.unconfig_ip4() - self.loop0.unconfig_ip4() + self.bvi0.unconfig_ip4() for i in self.pg_interfaces: i.admin_down() - for i in self.lo_interfaces: + for i in self.bvi_interfaces: i.admin_down() super(TestL2Flood, self).tearDown() def test_flood(self): - """ L2 Flood Tests """ + """L2 Flood Tests""" # # Create a single bridge Domain # - self.vapi.bridge_domain_add_del(1) + self.vapi.bridge_domain_add_del_v2( + bd_id=1, is_add=1, flood=1, uu_flood=1, forward=1, learn=1 + ) # # add each interface to the BD. 3 interfaces per split horizon group # for i in self.pg_interfaces[0:4]: - self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 0) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, shg=0 + ) for i in self.pg_interfaces[4:8]: - self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 1) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, shg=1 + ) for i in self.pg_interfaces[8:12]: - self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2) - for i in self.lo_interfaces: - self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2, - port_type=L2_PORT_TYPE.BVI) - - p = (Ether(dst="ff:ff:ff:ff:ff:ff", - src="00:00:de:ad:be:ef") / - IP(src="10.10.10.10", dst="1.1.1.1") / - UDP(sport=1234, dport=1234) / - Raw('\xa5' * 100)) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, shg=2 + ) + for i in self.bvi_interfaces: + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, shg=2, port_type=L2_PORT_TYPE.BVI + ) + + p = ( + Ether(dst="ff:ff:ff:ff:ff:ff", src="00:00:de:ad:be:ef") + / IP(src="10.10.10.10", dst="1.1.1.1") + / UDP(sport=1234, dport=1234) + / Raw(b"\xa5" * 100) + ) # # input on pg0 expect copies on pg1->11 # this is in SHG=0 so its flooded to all, expect the pg0 since that's # the ingress link # - self.pg0.add_stream(p*65) + self.pg0.add_stream(p * NUM_PKTS) self.pg_enable_capture(self.pg_interfaces) self.pg_start() for i in self.pg_interfaces[1:12]: - rx0 = i.get_capture(65, timeout=1) + rx0 = i.get_capture(NUM_PKTS, timeout=1) # # input on pg4 (SHG=1) expect copies on pg0->3 (SHG=0) # and pg8->11 (SHG=2) # - self.pg4.add_stream(p*65) + self.pg4.add_stream(p * NUM_PKTS) self.pg_enable_capture(self.pg_interfaces) self.pg_start() for i in self.pg_interfaces[:4]: - rx0 = i.get_capture(65, timeout=1) + rx0 = i.get_capture(NUM_PKTS, timeout=1) for i in self.pg_interfaces[8:12]: - rx0 = i.get_capture(65, timeout=1) + rx0 = i.get_capture(NUM_PKTS, timeout=1) for i in self.pg_interfaces[4:8]: i.assert_nothing_captured(remark="Different SH group") # # An IP route so the packet that hits the BVI is sent out of pg12 # - ip_route = VppIpRoute(self, "1.1.1.1", 32, - [VppRoutePath(self.pg12.remote_ip4, - self.pg12.sw_if_index)]) + ip_route = VppIpRoute( + self, + "1.1.1.1", + 32, + [VppRoutePath(self.pg12.remote_ip4, self.pg12.sw_if_index)], + ) ip_route.add_vpp_config() self.logger.info(self.vapi.cli("sh bridge 1 detail")) @@ -110,25 +133,25 @@ class TestL2Flood(VppTestCase): # this is in SHG=0 so its flooded to all, expect the pg0 since that's # the ingress link # - self.pg0.add_stream(p*65) + self.pg0.add_stream(p * NUM_PKTS) self.pg_enable_capture(self.pg_interfaces) self.pg_start() for i in self.pg_interfaces[1:]: - rx0 = i.get_capture(65, timeout=1) + rx0 = i.get_capture(NUM_PKTS, timeout=1) # # input on pg4 (SHG=1) expect copies on pg0->3 (SHG=0) # and pg8->12 (SHG=2) # - self.pg4.add_stream(p*65) + self.pg4.add_stream(p * NUM_PKTS) self.pg_enable_capture(self.pg_interfaces) self.pg_start() for i in self.pg_interfaces[:4]: - rx0 = i.get_capture(65, timeout=1) + rx0 = i.get_capture(NUM_PKTS, timeout=1) for i in self.pg_interfaces[8:13]: - rx0 = i.get_capture(65, timeout=1) + rx0 = i.get_capture(NUM_PKTS, timeout=1) for i in self.pg_interfaces[4:8]: i.assert_nothing_captured(remark="Different SH group") @@ -136,98 +159,181 @@ class TestL2Flood(VppTestCase): # cleanup # for i in self.pg_interfaces[:12]: - self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, enable=0) - for i in self.lo_interfaces: - self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2, - port_type=L2_PORT_TYPE.BVI, - enable=0) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, enable=0 + ) + for i in self.bvi_interfaces: + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, + bd_id=1, + shg=2, + port_type=L2_PORT_TYPE.BVI, + enable=0, + ) + + self.vapi.bridge_domain_add_del_v2(bd_id=1, is_add=0) + + def test_flood_one(self): + """L2 no-Flood Test""" + + # + # Create a single bridge Domain + # + self.vapi.bridge_domain_add_del_v2( + bd_id=1, is_add=1, flood=1, uu_flood=1, forward=1, learn=1 + ) + + # + # add 2 interfaces to the BD. this means a flood goes to only + # one member + # + for i in self.pg_interfaces[:2]: + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, shg=0 + ) + + p = ( + Ether(dst="ff:ff:ff:ff:ff:ff", src="00:00:de:ad:be:ef") + / IP(src="10.10.10.10", dst="1.1.1.1") + / UDP(sport=1234, dport=1234) + / Raw(b"\xa5" * 100) + ) + + # + # input on pg0 expect copies on pg1 + # + self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1) - self.vapi.bridge_domain_add_del(1, is_add=0) + # + # cleanup + # + for i in self.pg_interfaces[:2]: + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, enable=0 + ) + self.vapi.bridge_domain_add_del_v2(bd_id=1, is_add=0) def test_uu_fwd(self): - """ UU Flood """ + """UU Flood""" # # Create a single bridge Domain # - self.vapi.bridge_domain_add_del(1, uu_flood=1) + self.vapi.bridge_domain_add_del_v2( + bd_id=1, is_add=1, uu_flood=1, flood=1, forward=1, learn=1 + ) # # add each interface to the BD. 3 interfaces per split horizon group # for i in self.pg_interfaces[0:4]: - self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 0) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, shg=0 + ) # - # an unknown unicast packet + # an unknown unicast and broadcast packets # - p_uu = (Ether(dst="00:00:00:c1:5c:00", - src="00:00:de:ad:be:ef") / - IP(src="10.10.10.10", dst="1.1.1.1") / - UDP(sport=1234, dport=1234) / - Raw('\xa5' * 100)) + p_uu = ( + Ether(dst="00:00:00:c1:5c:00", src="00:00:de:ad:be:ef") + / IP(src="10.10.10.10", dst="1.1.1.1") + / UDP(sport=1234, dport=1234) + / Raw(b"\xa5" * 100) + ) + p_bm = ( + Ether(dst="ff:ff:ff:ff:ff:ff", src="00:00:de:ad:be:ef") + / IP(src="10.10.10.10", dst="1.1.1.1") + / UDP(sport=1234, dport=1234) + / Raw(b"\xa5" * 100) + ) # # input on pg0, expected copies on pg1->4 # - self.pg0.add_stream(p_uu*65) + self.pg0.add_stream(p_uu * NUM_PKTS) self.pg_enable_capture(self.pg_interfaces) self.pg_start() for i in self.pg_interfaces[1:4]: - rx0 = i.get_capture(65, timeout=1) + rx0 = i.get_capture(NUM_PKTS, timeout=1) + + self.pg0.add_stream(p_bm * NUM_PKTS) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + for i in self.pg_interfaces[1:4]: + rx0 = i.get_capture(NUM_PKTS, timeout=1) # # use pg8 as the uu-fwd interface # - self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0, - port_type=L2_PORT_TYPE.UU_FWD) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=self.pg8.sw_if_index, + bd_id=1, + shg=0, + port_type=L2_PORT_TYPE.UU_FWD, + ) # # expect the UU packet on the uu-fwd interface and not be flooded # - self.pg0.add_stream(p_uu*65) + self.pg0.add_stream(p_uu * NUM_PKTS) self.pg_enable_capture(self.pg_interfaces) self.pg_start() - rx0 = self.pg8.get_capture(65, timeout=1) + rx0 = self.pg8.get_capture(NUM_PKTS, timeout=1) for i in self.pg_interfaces[0:4]: i.assert_nothing_captured(remark="UU not flooded") + self.pg0.add_stream(p_bm * NUM_PKTS) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + for i in self.pg_interfaces[1:4]: + rx0 = i.get_capture(NUM_PKTS, timeout=1) + # # remove the uu-fwd interface and expect UU to be flooded again # - self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0, - port_type=L2_PORT_TYPE.UU_FWD, - enable=0) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=self.pg8.sw_if_index, + bd_id=1, + shg=0, + port_type=L2_PORT_TYPE.UU_FWD, + enable=0, + ) - self.pg0.add_stream(p_uu*65) + self.pg0.add_stream(p_uu * NUM_PKTS) self.pg_enable_capture(self.pg_interfaces) self.pg_start() for i in self.pg_interfaces[1:4]: - rx0 = i.get_capture(65, timeout=1) + rx0 = i.get_capture(NUM_PKTS, timeout=1) # # change the BD config to not support UU-flood # - self.vapi.bridge_flags(1, 0, BRIDGE_FLAGS.UU_FLOOD) + self.vapi.bridge_flags(bd_id=1, is_set=0, flags=BRIDGE_FLAGS.UU_FLOOD) self.send_and_assert_no_replies(self.pg0, p_uu) # # re-add the uu-fwd interface # - self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0, - port_type=L2_PORT_TYPE.UU_FWD) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=self.pg8.sw_if_index, + bd_id=1, + shg=0, + port_type=L2_PORT_TYPE.UU_FWD, + ) self.logger.info(self.vapi.cli("sh bridge 1 detail")) - self.pg0.add_stream(p_uu*65) + self.pg0.add_stream(p_uu * NUM_PKTS) self.pg_enable_capture(self.pg_interfaces) self.pg_start() - rx0 = self.pg8.get_capture(65, timeout=1) + rx0 = self.pg8.get_capture(NUM_PKTS, timeout=1) for i in self.pg_interfaces[0:4]: i.assert_nothing_captured(remark="UU not flooded") @@ -235,19 +341,25 @@ class TestL2Flood(VppTestCase): # # remove the uu-fwd interface # - self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0, - port_type=L2_PORT_TYPE.UU_FWD, - enable=0) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=self.pg8.sw_if_index, + bd_id=1, + shg=0, + port_type=L2_PORT_TYPE.UU_FWD, + enable=0, + ) self.send_and_assert_no_replies(self.pg0, p_uu) # # cleanup # for i in self.pg_interfaces[:4]: - self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, enable=0) + self.vapi.sw_interface_set_l2_bridge( + rx_sw_if_index=i.sw_if_index, bd_id=1, enable=0 + ) - self.vapi.bridge_domain_add_del(1, is_add=0) + self.vapi.bridge_domain_add_del_v2(bd_id=1, is_add=0) -if __name__ == '__main__': +if __name__ == "__main__": unittest.main(testRunner=VppTestRunner)