9a5f9c9a43
Change-Id: If178dd38e7920f35588f5d821ff097168b078026 Signed-off-by: Neale Ranns <nranns@cisco.com> (cherry picked from commit b9fa29d513bfad0d9f18e8ed8c2da3feaa6d3bf0)
287 lines
8.7 KiB
Python
287 lines
8.7 KiB
Python
#!/usr/bin/env python
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import unittest
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import socket
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from framework import VppTestCase, VppTestRunner
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from vpp_ip_route import VppIpRoute, VppRoutePath
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from vpp_papi_provider import L2_PORT_TYPE, BRIDGE_FLAGS
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from scapy.packet import Raw
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from scapy.layers.l2 import Ether
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from scapy.layers.inet import IP, UDP
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class TestL2Flood(VppTestCase):
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""" L2-flood """
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def setUp(self):
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super(TestL2Flood, self).setUp()
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# 12 l2 interface and one l3
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self.create_pg_interfaces(range(13))
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self.create_loopback_interfaces(1)
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for i in self.pg_interfaces:
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i.admin_up()
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for i in self.lo_interfaces:
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i.admin_up()
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self.pg12.config_ip4()
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self.pg12.resolve_arp()
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self.loop0.config_ip4()
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def tearDown(self):
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self.pg12.unconfig_ip4()
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self.loop0.unconfig_ip4()
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for i in self.pg_interfaces:
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i.admin_down()
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for i in self.lo_interfaces:
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i.admin_down()
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super(TestL2Flood, self).tearDown()
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def test_flood(self):
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""" L2 Flood Tests """
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#
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# Create a single bridge Domain
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#
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self.vapi.bridge_domain_add_del(1)
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#
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# add each interface to the BD. 3 interfaces per split horizon group
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#
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for i in self.pg_interfaces[0:4]:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 0)
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for i in self.pg_interfaces[4:8]:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 1)
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for i in self.pg_interfaces[8:12]:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2)
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for i in self.lo_interfaces:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2,
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port_type=L2_PORT_TYPE.BVI)
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p = (Ether(dst="ff:ff:ff:ff:ff:ff",
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src="00:00:de:ad:be:ef") /
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IP(src="10.10.10.10", dst="1.1.1.1") /
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UDP(sport=1234, dport=1234) /
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Raw('\xa5' * 100))
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#
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# input on pg0 expect copies on pg1->11
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# this is in SHG=0 so its flooded to all, expect the pg0 since that's
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# the ingress link
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#
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self.pg0.add_stream(p*65)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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for i in self.pg_interfaces[1:12]:
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rx0 = i.get_capture(65, timeout=1)
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#
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# input on pg4 (SHG=1) expect copies on pg0->3 (SHG=0)
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# and pg8->11 (SHG=2)
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#
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self.pg4.add_stream(p*65)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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for i in self.pg_interfaces[:4]:
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rx0 = i.get_capture(65, timeout=1)
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for i in self.pg_interfaces[8:12]:
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rx0 = i.get_capture(65, timeout=1)
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for i in self.pg_interfaces[4:8]:
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i.assert_nothing_captured(remark="Different SH group")
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#
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# An IP route so the packet that hits the BVI is sent out of pg12
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#
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ip_route = VppIpRoute(self, "1.1.1.1", 32,
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[VppRoutePath(self.pg12.remote_ip4,
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self.pg12.sw_if_index)])
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ip_route.add_vpp_config()
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self.logger.info(self.vapi.cli("sh bridge 1 detail"))
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#
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# input on pg0 expect copies on pg1->12
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# this is in SHG=0 so its flooded to all, expect the pg0 since that's
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# the ingress link
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#
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self.pg0.add_stream(p*65)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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for i in self.pg_interfaces[1:]:
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rx0 = i.get_capture(65, timeout=1)
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#
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# input on pg4 (SHG=1) expect copies on pg0->3 (SHG=0)
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# and pg8->12 (SHG=2)
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#
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self.pg4.add_stream(p*65)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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for i in self.pg_interfaces[:4]:
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rx0 = i.get_capture(65, timeout=1)
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for i in self.pg_interfaces[8:13]:
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rx0 = i.get_capture(65, timeout=1)
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for i in self.pg_interfaces[4:8]:
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i.assert_nothing_captured(remark="Different SH group")
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#
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# cleanup
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#
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for i in self.pg_interfaces[:12]:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, enable=0)
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for i in self.lo_interfaces:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 2,
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port_type=L2_PORT_TYPE.BVI,
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enable=0)
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self.vapi.bridge_domain_add_del(1, is_add=0)
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def test_flood_one(self):
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""" L2 no-Flood Test """
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#
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# Create a single bridge Domain
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#
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self.vapi.bridge_domain_add_del(1)
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#
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# add 2 interfaces to the BD. this means a flood goes to only
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# one member
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#
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for i in self.pg_interfaces[:2]:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 0)
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p = (Ether(dst="ff:ff:ff:ff:ff:ff",
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src="00:00:de:ad:be:ef") /
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IP(src="10.10.10.10", dst="1.1.1.1") /
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UDP(sport=1234, dport=1234) /
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Raw('\xa5' * 100))
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#
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# input on pg0 expect copies on pg1
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#
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self.send_and_expect(self.pg0, p*65, self.pg1)
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#
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# cleanup
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#
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for i in self.pg_interfaces[:2]:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, enable=0)
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self.vapi.bridge_domain_add_del(1, is_add=0)
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def test_uu_fwd(self):
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""" UU Flood """
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#
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# Create a single bridge Domain
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#
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self.vapi.bridge_domain_add_del(1, uu_flood=1)
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#
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# add each interface to the BD. 3 interfaces per split horizon group
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#
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for i in self.pg_interfaces[0:4]:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, 0)
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#
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# an unknown unicast packet
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#
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p_uu = (Ether(dst="00:00:00:c1:5c:00",
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src="00:00:de:ad:be:ef") /
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IP(src="10.10.10.10", dst="1.1.1.1") /
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UDP(sport=1234, dport=1234) /
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Raw('\xa5' * 100))
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#
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# input on pg0, expected copies on pg1->4
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#
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self.pg0.add_stream(p_uu*65)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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for i in self.pg_interfaces[1:4]:
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rx0 = i.get_capture(65, timeout=1)
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#
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# use pg8 as the uu-fwd interface
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#
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self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0,
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port_type=L2_PORT_TYPE.UU_FWD)
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#
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# expect the UU packet on the uu-fwd interface and not be flooded
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#
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self.pg0.add_stream(p_uu*65)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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rx0 = self.pg8.get_capture(65, timeout=1)
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for i in self.pg_interfaces[0:4]:
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i.assert_nothing_captured(remark="UU not flooded")
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#
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# remove the uu-fwd interface and expect UU to be flooded again
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#
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self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0,
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port_type=L2_PORT_TYPE.UU_FWD,
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enable=0)
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self.pg0.add_stream(p_uu*65)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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for i in self.pg_interfaces[1:4]:
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rx0 = i.get_capture(65, timeout=1)
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#
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# change the BD config to not support UU-flood
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#
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self.vapi.bridge_flags(1, 0, BRIDGE_FLAGS.UU_FLOOD)
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self.send_and_assert_no_replies(self.pg0, p_uu)
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#
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# re-add the uu-fwd interface
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#
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self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0,
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port_type=L2_PORT_TYPE.UU_FWD)
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self.logger.info(self.vapi.cli("sh bridge 1 detail"))
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self.pg0.add_stream(p_uu*65)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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rx0 = self.pg8.get_capture(65, timeout=1)
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for i in self.pg_interfaces[0:4]:
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i.assert_nothing_captured(remark="UU not flooded")
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#
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# remove the uu-fwd interface
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#
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self.vapi.sw_interface_set_l2_bridge(self.pg8.sw_if_index, 1, 0,
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port_type=L2_PORT_TYPE.UU_FWD,
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enable=0)
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self.send_and_assert_no_replies(self.pg0, p_uu)
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#
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# cleanup
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#
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for i in self.pg_interfaces[:4]:
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self.vapi.sw_interface_set_l2_bridge(i.sw_if_index, 1, enable=0)
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self.vapi.bridge_domain_add_del(1, is_add=0)
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if __name__ == '__main__':
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unittest.main(testRunner=VppTestRunner)
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