diff options
Diffstat (limited to 'src/vnet/fib/test/test_dvr.py')
| -rw-r--r-- | src/vnet/fib/test/test_dvr.py | 410 |
1 files changed, 0 insertions, 410 deletions
diff --git a/src/vnet/fib/test/test_dvr.py b/src/vnet/fib/test/test_dvr.py deleted file mode 100644 index 8531b8553ca..00000000000 --- a/src/vnet/fib/test/test_dvr.py +++ /dev/null @@ -1,410 +0,0 @@ -#!/usr/bin/env python3 -import unittest - -from framework import VppTestCase, VppTestRunner -from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathType -from vpp_l2 import L2_PORT_TYPE -from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint -from vpp_acl import AclRule, VppAcl, VppAclInterface - -from scapy.packet import Raw -from scapy.layers.l2 import Ether, Dot1Q -from scapy.layers.inet import IP, UDP -from socket import AF_INET, inet_pton -from ipaddress import IPv4Network - -NUM_PKTS = 67 - - -class TestDVR(VppTestCase): - """ Distributed Virtual Router """ - - @classmethod - def setUpClass(cls): - super(TestDVR, cls).setUpClass() - - @classmethod - def tearDownClass(cls): - super(TestDVR, cls).tearDownClass() - - def setUp(self): - super(TestDVR, self).setUp() - - self.create_pg_interfaces(range(4)) - self.create_loopback_interfaces(1) - - for i in self.pg_interfaces: - i.admin_up() - - self.loop0.config_ip4() - - def tearDown(self): - for i in self.pg_interfaces: - i.admin_down() - self.loop0.unconfig_ip4() - - super(TestDVR, self).tearDown() - - def assert_same_mac_addr(self, tx, rx): - t_eth = tx[Ether] - for p in rx: - r_eth = p[Ether] - self.assertEqual(t_eth.src, r_eth.src) - self.assertEqual(t_eth.dst, r_eth.dst) - - def assert_has_vlan_tag(self, tag, rx): - for p in rx: - r_1q = p[Dot1Q] - self.assertEqual(tag, r_1q.vlan) - - def assert_has_no_tag(self, rx): - for p in rx: - self.assertFalse(p.haslayer(Dot1Q)) - - def test_dvr(self): - """ Distributed Virtual Router """ - - # - # A packet destined to an IP address that is L2 bridged via - # a non-tag interface - # - ip_non_tag_bridged = "10.10.10.10" - ip_tag_bridged = "10.10.10.11" - any_src_addr = "1.1.1.1" - - pkt_no_tag = (Ether(src=self.pg0.remote_mac, - dst=self.loop0.local_mac) / - IP(src=any_src_addr, - dst=ip_non_tag_bridged) / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - pkt_tag = (Ether(src=self.pg0.remote_mac, - dst=self.loop0.local_mac) / - IP(src=any_src_addr, - dst=ip_tag_bridged) / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - - # - # Two sub-interfaces so we can test VLAN tag push/pop - # - sub_if_on_pg2 = VppDot1QSubint(self, self.pg2, 92) - sub_if_on_pg3 = VppDot1QSubint(self, self.pg3, 93) - sub_if_on_pg2.admin_up() - sub_if_on_pg3.admin_up() - - # - # Put all the interfaces into a new bridge domain - # - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.pg0.sw_if_index, bd_id=1) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.pg1.sw_if_index, bd_id=1) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=sub_if_on_pg2.sw_if_index, bd_id=1) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=sub_if_on_pg3.sw_if_index, bd_id=1) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.loop0.sw_if_index, bd_id=1, - port_type=L2_PORT_TYPE.BVI) - - self.vapi.l2_interface_vlan_tag_rewrite( - sw_if_index=sub_if_on_pg2.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, - push_dot1q=92) - self.vapi.l2_interface_vlan_tag_rewrite( - sw_if_index=sub_if_on_pg3.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, - push_dot1q=93) - - # - # Add routes to bridge the traffic via a tagged an nontagged interface - # - route_no_tag = VppIpRoute( - self, ip_non_tag_bridged, 32, - [VppRoutePath("0.0.0.0", - self.pg1.sw_if_index, - type=FibPathType.FIB_PATH_TYPE_DVR)]) - route_no_tag.add_vpp_config() - - # - # Inject the packet that arrives and leaves on a non-tagged interface - # Since it's 'bridged' expect that the MAC headed is unchanged. - # - rx = self.send_and_expect(self.pg0, pkt_no_tag * NUM_PKTS, self.pg1) - self.assert_same_mac_addr(pkt_no_tag, rx) - self.assert_has_no_tag(rx) - - # - # Add routes to bridge the traffic via a tagged interface - # - route_with_tag = VppIpRoute( - self, ip_tag_bridged, 32, - [VppRoutePath("0.0.0.0", - sub_if_on_pg3.sw_if_index, - type=FibPathType.FIB_PATH_TYPE_DVR)]) - route_with_tag.add_vpp_config() - - # - # Inject the packet that arrives non-tag and leaves on a tagged - # interface - # - rx = self.send_and_expect(self.pg0, pkt_tag * NUM_PKTS, self.pg3) - self.assert_same_mac_addr(pkt_tag, rx) - self.assert_has_vlan_tag(93, rx) - - # - # Tag to tag - # - pkt_tag_to_tag = (Ether(src=self.pg2.remote_mac, - dst=self.loop0.local_mac) / - Dot1Q(vlan=92) / - IP(src=any_src_addr, - dst=ip_tag_bridged) / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - - rx = self.send_and_expect(self.pg2, - pkt_tag_to_tag * NUM_PKTS, - self.pg3) - self.assert_same_mac_addr(pkt_tag_to_tag, rx) - self.assert_has_vlan_tag(93, rx) - - # - # Tag to non-Tag - # - pkt_tag_to_non_tag = (Ether(src=self.pg2.remote_mac, - dst=self.loop0.local_mac) / - Dot1Q(vlan=92) / - IP(src=any_src_addr, - dst=ip_non_tag_bridged) / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - - rx = self.send_and_expect(self.pg2, - pkt_tag_to_non_tag * NUM_PKTS, - self.pg1) - self.assert_same_mac_addr(pkt_tag_to_tag, rx) - self.assert_has_no_tag(rx) - - # - # Add an output L3 ACL that will block the traffic - # - rule_1 = AclRule(is_permit=0, proto=17, ports=1234, - src_prefix=IPv4Network((any_src_addr, 32)), - dst_prefix=IPv4Network((ip_non_tag_bridged, 32))) - acl = VppAcl(self, rules=[rule_1]) - acl.add_vpp_config() - - # - # Apply the ACL on the output interface - # - acl_if1 = VppAclInterface(self, sw_if_index=self.pg1.sw_if_index, - n_input=0, acls=[acl]) - acl_if1.add_vpp_config() - - # - # Send packet's that should match the ACL and be dropped - # - rx = self.send_and_assert_no_replies(self.pg2, - pkt_tag_to_non_tag * NUM_PKTS) - - # - # cleanup - # - acl_if1.remove_vpp_config() - acl.remove_vpp_config() - - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.pg0.sw_if_index, bd_id=1, enable=0) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.pg1.sw_if_index, bd_id=1, enable=0) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=sub_if_on_pg2.sw_if_index, bd_id=1, enable=0) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=sub_if_on_pg3.sw_if_index, bd_id=1, enable=0) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.loop0.sw_if_index, bd_id=1, - port_type=L2_PORT_TYPE.BVI, enable=0) - - # - # Do a FIB dump to make sure the paths are correctly reported as DVR - # - routes = self.vapi.ip_route_dump(0) - - for r in routes: - if (ip_tag_bridged == str(r.route.prefix.network_address)): - self.assertEqual(r.route.paths[0].sw_if_index, - sub_if_on_pg3.sw_if_index) - self.assertEqual(r.route.paths[0].type, - FibPathType.FIB_PATH_TYPE_DVR) - if (ip_non_tag_bridged == str(r.route.prefix.network_address)): - self.assertEqual(r.route.paths[0].sw_if_index, - self.pg1.sw_if_index) - self.assertEqual(r.route.paths[0].type, - FibPathType.FIB_PATH_TYPE_DVR) - - # - # the explicit route delete is require so it happens before - # the sbu-interface delete. subinterface delete is required - # because that object type does not use the object registry - # - route_no_tag.remove_vpp_config() - route_with_tag.remove_vpp_config() - sub_if_on_pg3.remove_vpp_config() - sub_if_on_pg2.remove_vpp_config() - - def test_l2_emulation(self): - """ L2 Emulation """ - - # - # non distinct L3 packets, in the tag/non-tag combos - # - pkt_no_tag = (Ether(src=self.pg0.remote_mac, - dst=self.pg1.remote_mac) / - IP(src="2.2.2.2", - dst="1.1.1.1") / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - pkt_to_tag = (Ether(src=self.pg0.remote_mac, - dst=self.pg2.remote_mac) / - IP(src="2.2.2.2", - dst="1.1.1.2") / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - pkt_from_tag = (Ether(src=self.pg3.remote_mac, - dst=self.pg2.remote_mac) / - Dot1Q(vlan=93) / - IP(src="2.2.2.2", - dst="1.1.1.1") / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - pkt_from_to_tag = (Ether(src=self.pg3.remote_mac, - dst=self.pg2.remote_mac) / - Dot1Q(vlan=93) / - IP(src="2.2.2.2", - dst="1.1.1.2") / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - pkt_bcast = (Ether(src=self.pg0.remote_mac, - dst="ff:ff:ff:ff:ff:ff") / - IP(src="2.2.2.2", - dst="255.255.255.255") / - UDP(sport=1234, dport=1234) / - Raw(b'\xa5' * 100)) - - # - # A couple of sub-interfaces for tags - # - sub_if_on_pg2 = VppDot1QSubint(self, self.pg2, 92) - sub_if_on_pg3 = VppDot1QSubint(self, self.pg3, 93) - sub_if_on_pg2.admin_up() - sub_if_on_pg3.admin_up() - - # - # Put all the interfaces into a new bridge domain - # - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.pg0.sw_if_index, bd_id=1) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.pg1.sw_if_index, bd_id=1) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=sub_if_on_pg2.sw_if_index, bd_id=1) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=sub_if_on_pg3.sw_if_index, bd_id=1) - self.vapi.l2_interface_vlan_tag_rewrite( - sw_if_index=sub_if_on_pg2.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, - push_dot1q=92) - self.vapi.l2_interface_vlan_tag_rewrite( - sw_if_index=sub_if_on_pg3.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, - push_dot1q=93) - - # - # Disable UU flooding, learning and ARP termination. makes this test - # easier as unicast packets are dropped if not extracted. - # - self.vapi.bridge_flags(bd_id=1, is_set=0, - flags=(1 << 0) | (1 << 3) | (1 << 4)) - - # - # Add a DVR route to steer traffic at L3 - # - route_1 = VppIpRoute( - self, "1.1.1.1", 32, - [VppRoutePath("0.0.0.0", - self.pg1.sw_if_index, - type=FibPathType.FIB_PATH_TYPE_DVR)]) - route_2 = VppIpRoute( - self, "1.1.1.2", 32, - [VppRoutePath("0.0.0.0", - sub_if_on_pg2.sw_if_index, - type=FibPathType.FIB_PATH_TYPE_DVR)]) - route_1.add_vpp_config() - route_2.add_vpp_config() - - # - # packets are dropped because bridge does not flood unknown unicast - # - self.send_and_assert_no_replies(self.pg0, pkt_no_tag) - - # - # Enable L3 extraction on pgs - # - self.vapi.l2_emulation(self.pg0.sw_if_index) - self.vapi.l2_emulation(self.pg1.sw_if_index) - self.vapi.l2_emulation(sub_if_on_pg2.sw_if_index) - self.vapi.l2_emulation(sub_if_on_pg3.sw_if_index) - - # - # now we expect the packet forward according to the DVR route - # - rx = self.send_and_expect(self.pg0, pkt_no_tag * NUM_PKTS, self.pg1) - self.assert_same_mac_addr(pkt_no_tag, rx) - self.assert_has_no_tag(rx) - - rx = self.send_and_expect(self.pg0, pkt_to_tag * NUM_PKTS, self.pg2) - self.assert_same_mac_addr(pkt_to_tag, rx) - self.assert_has_vlan_tag(92, rx) - - rx = self.send_and_expect(self.pg3, pkt_from_tag * NUM_PKTS, self.pg1) - self.assert_same_mac_addr(pkt_from_tag, rx) - self.assert_has_no_tag(rx) - - rx = self.send_and_expect(self.pg3, - pkt_from_to_tag * NUM_PKTS, - self.pg2) - self.assert_same_mac_addr(pkt_from_tag, rx) - self.assert_has_vlan_tag(92, rx) - - # - # but broadcast packets are still flooded - # - self.send_and_expect(self.pg0, pkt_bcast * 33, self.pg2) - - # - # cleanup - # - self.vapi.l2_emulation(self.pg0.sw_if_index, - enable=0) - self.vapi.l2_emulation(self.pg1.sw_if_index, - enable=0) - self.vapi.l2_emulation(sub_if_on_pg2.sw_if_index, - enable=0) - self.vapi.l2_emulation(sub_if_on_pg3.sw_if_index, - enable=0) - - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.pg0.sw_if_index, bd_id=1, enable=0) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=self.pg1.sw_if_index, bd_id=1, enable=0) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=sub_if_on_pg2.sw_if_index, bd_id=1, enable=0) - self.vapi.sw_interface_set_l2_bridge( - rx_sw_if_index=sub_if_on_pg3.sw_if_index, bd_id=1, enable=0) - - route_1.remove_vpp_config() - route_2.remove_vpp_config() - sub_if_on_pg3.remove_vpp_config() - sub_if_on_pg2.remove_vpp_config() - - -if __name__ == '__main__': - unittest.main(testRunner=VppTestRunner) |