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Diffstat (limited to 'test/test_svs.py')
| -rw-r--r-- | test/test_svs.py | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/test/test_svs.py b/test/test_svs.py new file mode 100644 index 00000000000..db4ad8078e0 --- /dev/null +++ b/test/test_svs.py @@ -0,0 +1,342 @@ +#!/usr/bin/env python3 + +import unittest + +from framework import VppTestCase, VppTestRunner +from vpp_ip_route import VppIpTable + +from scapy.packet import Raw +from scapy.layers.l2 import Ether +from scapy.layers.inet import IP, UDP, ICMP +from scapy.layers.inet6 import IPv6 + +from vpp_papi import VppEnum + +NUM_PKTS = 67 + + +class TestSVS(VppTestCase): + """ SVS Test Case """ + + @classmethod + def setUpClass(cls): + super(TestSVS, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestSVS, cls).tearDownClass() + + def setUp(self): + super(TestSVS, self).setUp() + + # create 2 pg interfaces + self.create_pg_interfaces(range(4)) + + table_id = 0 + + for i in self.pg_interfaces: + i.admin_up() + + if table_id != 0: + tbl = VppIpTable(self, table_id) + tbl.add_vpp_config() + tbl = VppIpTable(self, table_id, is_ip6=1) + tbl.add_vpp_config() + + i.set_table_ip4(table_id) + i.set_table_ip6(table_id) + i.config_ip4() + i.resolve_arp() + i.config_ip6() + i.resolve_ndp() + table_id += 1 + + def tearDown(self): + for i in self.pg_interfaces: + i.unconfig_ip4() + i.unconfig_ip6() + i.set_table_ip4(0) + i.set_table_ip6(0) + i.admin_down() + super(TestSVS, self).tearDown() + + def test_svs4(self): + """ Source VRF Select IP4 """ + + # + # packets destined out of the 3 non-default table interfaces + # + pkts_0 = [(Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(src="1.1.1.1", dst=self.pg1.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)), + (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(src="2.2.2.2", dst=self.pg2.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)), + (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(src="3.3.3.3", dst=self.pg3.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100))] + pkts_1 = [(Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IP(src="1.1.1.1", dst=self.pg1.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)), + (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IP(src="2.2.2.2", dst=self.pg2.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)), + (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IP(src="3.3.3.3", dst=self.pg3.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100))] + + # + # before adding the SVS config all these packets are dropped when + # ingressing on pg0 since pg0 is in the default table + # + for p in pkts_0: + self.send_and_assert_no_replies(self.pg0, p * 1) + + # + # Add table 1001 & 1002 into which we'll add the routes + # determining the source VRF selection + # + table_ids = [101, 102] + + for table_id in table_ids: + self.vapi.svs_table_add_del( + is_add=1, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP4, + table_id=table_id) + + # + # map X.0.0.0/8 to each SVS table for lookup in table X + # + for i in range(1, 4): + self.vapi.svs_route_add_del( + is_add=1, + prefix="%d.0.0.0/8" % i, + table_id=table_id, + source_table_id=i) + + # + # Enable SVS on pg0/pg1 using table 1001/1002 + # + self.vapi.svs_enable_disable( + is_enable=1, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP4, + table_id=table_ids[0], + sw_if_index=self.pg0.sw_if_index) + self.vapi.svs_enable_disable( + is_enable=1, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP4, + table_id=table_ids[1], + sw_if_index=self.pg1.sw_if_index) + + # + # now all the packets should be delivered out the respective interface + # + self.send_and_expect(self.pg0, pkts_0[0] * NUM_PKTS, self.pg1) + self.send_and_expect(self.pg0, pkts_0[1] * NUM_PKTS, self.pg2) + self.send_and_expect(self.pg0, pkts_0[2] * NUM_PKTS, self.pg3) + self.send_and_expect(self.pg1, pkts_1[0] * NUM_PKTS, self.pg1) + self.send_and_expect(self.pg1, pkts_1[1] * NUM_PKTS, self.pg2) + self.send_and_expect(self.pg1, pkts_1[2] * NUM_PKTS, self.pg3) + + # + # check that if the SVS lookup does not match a route the packet + # is forwarded using the interface's routing table + # + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)) + self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg0) + + p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IP(src=self.pg1.remote_ip4, dst=self.pg1.remote_ip4) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)) + self.send_and_expect(self.pg1, p * NUM_PKTS, self.pg1) + + # + # dump the SVS configs + # + ss = self.vapi.svs_dump() + + self.assertEqual(ss[0].table_id, table_ids[0]) + self.assertEqual(ss[0].sw_if_index, self.pg0.sw_if_index) + self.assertEqual(ss[0].af, VppEnum.vl_api_address_family_t.ADDRESS_IP4) + self.assertEqual(ss[1].table_id, table_ids[1]) + self.assertEqual(ss[1].sw_if_index, self.pg1.sw_if_index) + self.assertEqual(ss[1].af, VppEnum.vl_api_address_family_t.ADDRESS_IP4) + + # + # cleanup + # + self.vapi.svs_enable_disable( + is_enable=0, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP4, + table_id=table_ids[0], + sw_if_index=self.pg0.sw_if_index) + self.vapi.svs_enable_disable( + is_enable=0, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP4, + table_id=table_ids[1], + sw_if_index=self.pg1.sw_if_index) + + for table_id in table_ids: + for i in range(1, 4): + self.vapi.svs_route_add_del( + is_add=0, + prefix="%d.0.0.0/8" % i, + table_id=table_id, + source_table_id=0) + + self.vapi.svs_table_add_del( + is_add=0, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP4, + table_id=table_id) + + def test_svs6(self): + """ Source VRF Select IP6 """ + + # + # packets destined out of the 3 non-default table interfaces + # + pkts_0 = [(Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src="2001:1::1", dst=self.pg1.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)), + (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src="2001:2::1", dst=self.pg2.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)), + (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src="2001:3::1", dst=self.pg3.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100))] + pkts_1 = [(Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(src="2001:1::1", dst=self.pg1.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)), + (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(src="2001:2::1", dst=self.pg2.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)), + (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(src="2001:3::1", dst=self.pg3.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100))] + + # + # before adding the SVS config all these packets are dropped when + # ingressing on pg0 since pg0 is in the default table + # + for p in pkts_0: + self.send_and_assert_no_replies(self.pg0, p * 1) + + # + # Add table 1001 & 1002 into which we'll add the routes + # determining the source VRF selection + # + table_ids = [101, 102] + + for table_id in table_ids: + self.vapi.svs_table_add_del( + is_add=1, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP6, + table_id=table_id) + + # + # map X.0.0.0/8 to each SVS table for lookup in table X + # + for i in range(1, 4): + self.vapi.svs_route_add_del( + is_add=1, + prefix="2001:%d::/32" % i, + table_id=table_id, + source_table_id=i) + + # + # Enable SVS on pg0/pg1 using table 1001/1002 + # + self.vapi.svs_enable_disable( + is_enable=1, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP6, + table_id=table_ids[0], + sw_if_index=self.pg0.sw_if_index) + self.vapi.svs_enable_disable( + is_enable=1, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP6, + table_id=table_ids[1], + sw_if_index=self.pg1.sw_if_index) + + # + # now all the packets should be delivered out the respective interface + # + self.send_and_expect(self.pg0, pkts_0[0] * NUM_PKTS, self.pg1) + self.send_and_expect(self.pg0, pkts_0[1] * NUM_PKTS, self.pg2) + self.send_and_expect(self.pg0, pkts_0[2] * NUM_PKTS, self.pg3) + self.send_and_expect(self.pg1, pkts_1[0] * NUM_PKTS, self.pg1) + self.send_and_expect(self.pg1, pkts_1[1] * NUM_PKTS, self.pg2) + self.send_and_expect(self.pg1, pkts_1[2] * NUM_PKTS, self.pg3) + + # + # check that if the SVS lookup does not match a route the packet + # is forwarded using the interface's routing table + # + p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IPv6(src=self.pg0.remote_ip6, dst=self.pg0.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)) + self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg0) + + p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) / + IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) / + UDP(sport=1234, dport=1234) / + Raw(b'\xa5' * 100)) + self.send_and_expect(self.pg1, p * NUM_PKTS, self.pg1) + + # + # dump the SVS configs + # + ss = self.vapi.svs_dump() + + self.assertEqual(ss[0].table_id, table_ids[0]) + self.assertEqual(ss[0].sw_if_index, self.pg0.sw_if_index) + self.assertEqual(ss[0].af, VppEnum.vl_api_address_family_t.ADDRESS_IP6) + self.assertEqual(ss[1].table_id, table_ids[1]) + self.assertEqual(ss[1].sw_if_index, self.pg1.sw_if_index) + self.assertEqual(ss[1].af, VppEnum.vl_api_address_family_t.ADDRESS_IP6) + + # + # cleanup + # + self.vapi.svs_enable_disable( + is_enable=0, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP6, + table_id=table_ids[0], + sw_if_index=self.pg0.sw_if_index) + self.vapi.svs_enable_disable( + is_enable=0, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP6, + table_id=table_ids[1], + sw_if_index=self.pg1.sw_if_index) + + for table_id in table_ids: + for i in range(1, 4): + self.vapi.svs_route_add_del( + is_add=0, + prefix="2001:%d::/32" % i, + table_id=table_id, + source_table_id=0) + + self.vapi.svs_table_add_del( + is_add=0, + af=VppEnum.vl_api_address_family_t.ADDRESS_IP6, + table_id=table_id) + +if __name__ == '__main__': + unittest.main(testRunner=VppTestRunner) |