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-rw-r--r--test/test_svs.py342
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diff --git a/test/test_svs.py b/test/test_svs.py
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+++ b/test/test_svs.py
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+#!/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)