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Diffstat (limited to 'src/vnet/gre/test/test_gre.py')
| -rw-r--r-- | src/vnet/gre/test/test_gre.py | 1296 |
1 files changed, 0 insertions, 1296 deletions
diff --git a/src/vnet/gre/test/test_gre.py b/src/vnet/gre/test/test_gre.py deleted file mode 100644 index ba20ba8dec0..00000000000 --- a/src/vnet/gre/test/test_gre.py +++ /dev/null @@ -1,1296 +0,0 @@ -#!/usr/bin/env python3 - -import unittest - -import scapy.compat -from scapy.packet import Raw -from scapy.layers.l2 import Ether, Dot1Q, GRE -from scapy.layers.inet import IP, UDP -from scapy.layers.inet6 import IPv6 -from scapy.volatile import RandMAC, RandIP - -from framework import tag_fixme_vpp_workers -from framework import VppTestCase, VppTestRunner -from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint -from vpp_gre_interface import VppGreInterface -from vpp_teib import VppTeib -from vpp_ip import DpoProto -from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable, FibPathProto, \ - VppMplsLabel -from vpp_mpls_tunnel_interface import VppMPLSTunnelInterface -from util import ppp, ppc -from vpp_papi import VppEnum - - -@tag_fixme_vpp_workers -class TestGREInputNodes(VppTestCase): - """ GRE Input Nodes Test Case """ - - def setUp(self): - super(TestGREInputNodes, self).setUp() - - # create 3 pg interfaces - set one in a non-default table. - self.create_pg_interfaces(range(1)) - - for i in self.pg_interfaces: - i.admin_up() - i.config_ip4() - - def tearDown(self): - for i in self.pg_interfaces: - i.unconfig_ip4() - i.admin_down() - super(TestGREInputNodes, self).tearDown() - - def test_gre_input_node(self): - """ GRE gre input nodes not registerd unless configured """ - pkt = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / - IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) / - GRE()) - - self.pg0.add_stream(pkt) - self.pg_start() - # no tunnel created, gre-input not registered - err = self.statistics.get_counter( - '/err/ip4-local/unknown ip protocol')[0] - self.assertEqual(err, 1) - err_count = err - - # create gre tunnel - gre_if = VppGreInterface(self, self.pg0.local_ip4, "1.1.1.2") - gre_if.add_vpp_config() - - self.pg0.add_stream(pkt) - self.pg_start() - # tunnel created, gre-input registered - err = self.statistics.get_counter( - '/err/ip4-local/unknown ip protocol')[0] - # expect no new errors - self.assertEqual(err, err_count) - - -class TestGRE(VppTestCase): - """ GRE Test Case """ - - @classmethod - def setUpClass(cls): - super(TestGRE, cls).setUpClass() - - @classmethod - def tearDownClass(cls): - super(TestGRE, cls).tearDownClass() - - def setUp(self): - super(TestGRE, self).setUp() - - # create 3 pg interfaces - set one in a non-default table. - self.create_pg_interfaces(range(5)) - - self.tbl = VppIpTable(self, 1) - self.tbl.add_vpp_config() - self.pg1.set_table_ip4(1) - - for i in self.pg_interfaces: - i.admin_up() - - self.pg0.config_ip4() - self.pg0.resolve_arp() - self.pg1.config_ip4() - self.pg1.resolve_arp() - self.pg2.config_ip6() - self.pg2.resolve_ndp() - self.pg3.config_ip4() - self.pg3.resolve_arp() - self.pg4.config_ip4() - self.pg4.resolve_arp() - - def tearDown(self): - for i in self.pg_interfaces: - i.unconfig_ip4() - i.unconfig_ip6() - i.admin_down() - self.pg1.set_table_ip4(0) - super(TestGRE, self).tearDown() - - def create_stream_ip4(self, src_if, src_ip, dst_ip, dscp=0, ecn=0): - pkts = [] - tos = (dscp << 2) | ecn - for i in range(0, 257): - info = self.create_packet_info(src_if, src_if) - payload = self.info_to_payload(info) - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - IP(src=src_ip, dst=dst_ip, tos=tos) / - UDP(sport=1234, dport=1234) / - Raw(payload)) - info.data = p.copy() - pkts.append(p) - return pkts - - def create_stream_ip6(self, src_if, src_ip, dst_ip, dscp=0, ecn=0): - pkts = [] - tc = (dscp << 2) | ecn - for i in range(0, 257): - info = self.create_packet_info(src_if, src_if) - payload = self.info_to_payload(info) - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - IPv6(src=src_ip, dst=dst_ip, tc=tc) / - UDP(sport=1234, dport=1234) / - Raw(payload)) - info.data = p.copy() - pkts.append(p) - return pkts - - def create_tunnel_stream_4o4(self, src_if, - tunnel_src, tunnel_dst, - src_ip, dst_ip): - pkts = [] - for i in range(0, 257): - info = self.create_packet_info(src_if, src_if) - payload = self.info_to_payload(info) - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - IP(src=tunnel_src, dst=tunnel_dst) / - GRE() / - IP(src=src_ip, dst=dst_ip) / - UDP(sport=1234, dport=1234) / - Raw(payload)) - info.data = p.copy() - pkts.append(p) - return pkts - - def create_tunnel_stream_6o4(self, src_if, - tunnel_src, tunnel_dst, - src_ip, dst_ip): - pkts = [] - for i in range(0, 257): - info = self.create_packet_info(src_if, src_if) - payload = self.info_to_payload(info) - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - IP(src=tunnel_src, dst=tunnel_dst) / - GRE() / - IPv6(src=src_ip, dst=dst_ip) / - UDP(sport=1234, dport=1234) / - Raw(payload)) - info.data = p.copy() - pkts.append(p) - return pkts - - def create_tunnel_stream_6o6(self, src_if, - tunnel_src, tunnel_dst, - src_ip, dst_ip): - pkts = [] - for i in range(0, 257): - info = self.create_packet_info(src_if, src_if) - payload = self.info_to_payload(info) - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - IPv6(src=tunnel_src, dst=tunnel_dst) / - GRE() / - IPv6(src=src_ip, dst=dst_ip) / - UDP(sport=1234, dport=1234) / - Raw(payload)) - info.data = p.copy() - pkts.append(p) - return pkts - - def create_tunnel_stream_l2o4(self, src_if, - tunnel_src, tunnel_dst): - pkts = [] - for i in range(0, 257): - info = self.create_packet_info(src_if, src_if) - payload = self.info_to_payload(info) - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - IP(src=tunnel_src, dst=tunnel_dst) / - GRE() / - Ether(dst=RandMAC('*:*:*:*:*:*'), - src=RandMAC('*:*:*:*:*:*')) / - IP(src=scapy.compat.raw(RandIP()), - dst=scapy.compat.raw(RandIP())) / - UDP(sport=1234, dport=1234) / - Raw(payload)) - info.data = p.copy() - pkts.append(p) - return pkts - - def create_tunnel_stream_vlano4(self, src_if, - tunnel_src, tunnel_dst, vlan): - pkts = [] - for i in range(0, 257): - info = self.create_packet_info(src_if, src_if) - payload = self.info_to_payload(info) - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - IP(src=tunnel_src, dst=tunnel_dst) / - GRE() / - Ether(dst=RandMAC('*:*:*:*:*:*'), - src=RandMAC('*:*:*:*:*:*')) / - Dot1Q(vlan=vlan) / - IP(src=scapy.compat.raw(RandIP()), - dst=scapy.compat.raw(RandIP())) / - UDP(sport=1234, dport=1234) / - Raw(payload)) - info.data = p.copy() - pkts.append(p) - return pkts - - def verify_tunneled_4o4(self, src_if, capture, sent, - tunnel_src, tunnel_dst, - dscp=0, ecn=0): - - self.assertEqual(len(capture), len(sent)) - tos = (dscp << 2) | ecn - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - tx_ip = tx[IP] - rx_ip = rx[IP] - - self.assertEqual(rx_ip.src, tunnel_src) - self.assertEqual(rx_ip.dst, tunnel_dst) - self.assertEqual(rx_ip.tos, tos) - self.assertEqual(rx_ip.len, len(rx_ip)) - - rx_gre = rx[GRE] - rx_ip = rx_gre[IP] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - # IP processing post pop has decremented the TTL - self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def verify_tunneled_6o6(self, src_if, capture, sent, - tunnel_src, tunnel_dst, - dscp=0, ecn=0): - - self.assertEqual(len(capture), len(sent)) - tc = (dscp << 2) | ecn - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - tx_ip = tx[IPv6] - rx_ip = rx[IPv6] - - self.assertEqual(rx_ip.src, tunnel_src) - self.assertEqual(rx_ip.dst, tunnel_dst) - self.assertEqual(rx_ip.tc, tc) - - rx_gre = GRE(scapy.compat.raw(rx_ip[IPv6].payload)) - - self.assertEqual(rx_ip.plen, len(rx_gre)) - - rx_ip = rx_gre[IPv6] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def verify_tunneled_4o6(self, src_if, capture, sent, - tunnel_src, tunnel_dst): - - self.assertEqual(len(capture), len(sent)) - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - rx_ip = rx[IPv6] - - self.assertEqual(rx_ip.src, tunnel_src) - self.assertEqual(rx_ip.dst, tunnel_dst) - - rx_gre = GRE(scapy.compat.raw(rx_ip[IPv6].payload)) - - self.assertEqual(rx_ip.plen, len(rx_gre)) - - tx_ip = tx[IP] - rx_ip = rx_gre[IP] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def verify_tunneled_6o4(self, src_if, capture, sent, - tunnel_src, tunnel_dst): - - self.assertEqual(len(capture), len(sent)) - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - rx_ip = rx[IP] - - self.assertEqual(rx_ip.src, tunnel_src) - self.assertEqual(rx_ip.dst, tunnel_dst) - self.assertEqual(rx_ip.len, len(rx_ip)) - - rx_gre = GRE(scapy.compat.raw(rx_ip[IP].payload)) - rx_ip = rx_gre[IPv6] - tx_ip = tx[IPv6] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def verify_tunneled_l2o4(self, src_if, capture, sent, - tunnel_src, tunnel_dst): - self.assertEqual(len(capture), len(sent)) - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - tx_ip = tx[IP] - rx_ip = rx[IP] - - self.assertEqual(rx_ip.src, tunnel_src) - self.assertEqual(rx_ip.dst, tunnel_dst) - self.assertEqual(rx_ip.len, len(rx_ip)) - - rx_gre = rx[GRE] - rx_l2 = rx_gre[Ether] - rx_ip = rx_l2[IP] - tx_gre = tx[GRE] - tx_l2 = tx_gre[Ether] - tx_ip = tx_l2[IP] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - # bridged, not L3 forwarded, so no TTL decrement - self.assertEqual(rx_ip.ttl, tx_ip.ttl) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def verify_tunneled_vlano4(self, src_if, capture, sent, - tunnel_src, tunnel_dst, vlan): - try: - self.assertEqual(len(capture), len(sent)) - except: - ppc("Unexpected packets captured:", capture) - raise - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - tx_ip = tx[IP] - rx_ip = rx[IP] - - self.assertEqual(rx_ip.src, tunnel_src) - self.assertEqual(rx_ip.dst, tunnel_dst) - - rx_gre = rx[GRE] - rx_l2 = rx_gre[Ether] - rx_vlan = rx_l2[Dot1Q] - rx_ip = rx_l2[IP] - - self.assertEqual(rx_vlan.vlan, vlan) - - tx_gre = tx[GRE] - tx_l2 = tx_gre[Ether] - tx_ip = tx_l2[IP] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - # bridged, not L3 forwarded, so no TTL decrement - self.assertEqual(rx_ip.ttl, tx_ip.ttl) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def verify_decapped_4o4(self, src_if, capture, sent): - self.assertEqual(len(capture), len(sent)) - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - tx_ip = tx[IP] - rx_ip = rx[IP] - tx_gre = tx[GRE] - tx_ip = tx_gre[IP] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - # IP processing post pop has decremented the TTL - self.assertEqual(rx_ip.ttl + 1, tx_ip.ttl) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def verify_decapped_6o4(self, src_if, capture, sent): - self.assertEqual(len(capture), len(sent)) - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - tx_ip = tx[IP] - rx_ip = rx[IPv6] - tx_gre = tx[GRE] - tx_ip = tx_gre[IPv6] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def verify_decapped_6o6(self, src_if, capture, sent): - self.assertEqual(len(capture), len(sent)) - - for i in range(len(capture)): - try: - tx = sent[i] - rx = capture[i] - - tx_ip = tx[IPv6] - rx_ip = rx[IPv6] - tx_gre = tx[GRE] - tx_ip = tx_gre[IPv6] - - self.assertEqual(rx_ip.src, tx_ip.src) - self.assertEqual(rx_ip.dst, tx_ip.dst) - self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim) - - except: - self.logger.error(ppp("Rx:", rx)) - self.logger.error(ppp("Tx:", tx)) - raise - - def test_gre(self): - """ GRE IPv4 tunnel Tests """ - - # - # Create an L3 GRE tunnel. - # - set it admin up - # - assign an IP Addres - # - Add a route via the tunnel - # - gre_if = VppGreInterface(self, - self.pg0.local_ip4, - "1.1.1.2") - gre_if.add_vpp_config() - - # - # The double create (create the same tunnel twice) should fail, - # and we should still be able to use the original - # - try: - gre_if.add_vpp_config() - except Exception: - pass - else: - self.fail("Double GRE tunnel add does not fail") - - gre_if.admin_up() - gre_if.config_ip4() - - route_via_tun = VppIpRoute(self, "4.4.4.4", 32, - [VppRoutePath("0.0.0.0", - gre_if.sw_if_index)]) - - route_via_tun.add_vpp_config() - - # - # Send a packet stream that is routed into the tunnel - # - they are all dropped since the tunnel's destintation IP - # is unresolved - or resolves via the default route - which - # which is a drop. - # - tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "4.4.4.4") - - self.send_and_assert_no_replies(self.pg0, tx) - - # - # Add a route that resolves the tunnel's destination - # - route_tun_dst = VppIpRoute(self, "1.1.1.2", 32, - [VppRoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index)]) - route_tun_dst.add_vpp_config() - - # - # Send a packet stream that is routed into the tunnel - # - packets are GRE encapped - # - tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "4.4.4.4") - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_tunneled_4o4(self.pg0, rx, tx, - self.pg0.local_ip4, "1.1.1.2") - - # - # Send tunneled packets that match the created tunnel and - # are decapped and forwarded - # - tx = self.create_tunnel_stream_4o4(self.pg0, - "1.1.1.2", - self.pg0.local_ip4, - self.pg0.local_ip4, - self.pg0.remote_ip4) - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_decapped_4o4(self.pg0, rx, tx) - - # - # Send tunneled packets that do not match the tunnel's src - # - self.vapi.cli("clear trace") - tx = self.create_tunnel_stream_4o4(self.pg0, - "1.1.1.3", - self.pg0.local_ip4, - self.pg0.local_ip4, - self.pg0.remote_ip4) - self.send_and_assert_no_replies( - self.pg0, tx, - remark="GRE packets forwarded despite no SRC address match") - - # - # Configure IPv6 on the PG interface so we can route IPv6 - # packets - # - self.pg0.config_ip6() - self.pg0.resolve_ndp() - - # - # Send IPv6 tunnel encapslated packets - # - dropped since IPv6 is not enabled on the tunnel - # - tx = self.create_tunnel_stream_6o4(self.pg0, - "1.1.1.2", - self.pg0.local_ip4, - self.pg0.local_ip6, - self.pg0.remote_ip6) - self.send_and_assert_no_replies(self.pg0, tx, - "IPv6 GRE packets forwarded " - "despite IPv6 not enabled on tunnel") - - # - # Enable IPv6 on the tunnel - # - gre_if.config_ip6() - - # - # Send IPv6 tunnel encapslated packets - # - forwarded since IPv6 is enabled on the tunnel - # - tx = self.create_tunnel_stream_6o4(self.pg0, - "1.1.1.2", - self.pg0.local_ip4, - self.pg0.local_ip6, - self.pg0.remote_ip6) - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_decapped_6o4(self.pg0, rx, tx) - - # - # Send v6 packets for v4 encap - # - route6_via_tun = VppIpRoute( - self, "2001::1", 128, - [VppRoutePath("::", - gre_if.sw_if_index, - proto=DpoProto.DPO_PROTO_IP6)]) - route6_via_tun.add_vpp_config() - - tx = self.create_stream_ip6(self.pg0, "2001::2", "2001::1") - rx = self.send_and_expect(self.pg0, tx, self.pg0) - - self.verify_tunneled_6o4(self.pg0, rx, tx, - self.pg0.local_ip4, "1.1.1.2") - - # - # add a labelled route through the tunnel - # - label_via_tun = VppIpRoute(self, "5.4.3.2", 32, - [VppRoutePath("0.0.0.0", - gre_if.sw_if_index, - labels=[VppMplsLabel(33)])]) - label_via_tun.add_vpp_config() - - tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "5.4.3.2") - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_tunneled_4o4(self.pg0, rx, tx, - self.pg0.local_ip4, "1.1.1.2") - - # - # an MPLS tunnel over the GRE tunnel add a route through - # the mpls tunnel - # - mpls_tun = VppMPLSTunnelInterface( - self, - [VppRoutePath("0.0.0.0", - gre_if.sw_if_index, - labels=[VppMplsLabel(44), - VppMplsLabel(46)])]) - mpls_tun.add_vpp_config() - mpls_tun.admin_up() - - label_via_mpls = VppIpRoute(self, "5.4.3.1", 32, - [VppRoutePath("0.0.0.0", - mpls_tun.sw_if_index, - labels=[VppMplsLabel(33)])]) - label_via_mpls.add_vpp_config() - - tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "5.4.3.1") - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_tunneled_4o4(self.pg0, rx, tx, - self.pg0.local_ip4, "1.1.1.2") - - mpls_tun_l2 = VppMPLSTunnelInterface( - self, - [VppRoutePath("0.0.0.0", - gre_if.sw_if_index, - labels=[VppMplsLabel(44), - VppMplsLabel(46)])], - is_l2=1) - mpls_tun_l2.add_vpp_config() - mpls_tun_l2.admin_up() - - # - # test case cleanup - # - route_tun_dst.remove_vpp_config() - route_via_tun.remove_vpp_config() - route6_via_tun.remove_vpp_config() - label_via_mpls.remove_vpp_config() - label_via_tun.remove_vpp_config() - mpls_tun.remove_vpp_config() - mpls_tun_l2.remove_vpp_config() - gre_if.remove_vpp_config() - - self.pg0.unconfig_ip6() - - def test_gre6(self): - """ GRE IPv6 tunnel Tests """ - - self.pg1.config_ip6() - self.pg1.resolve_ndp() - - # - # Create an L3 GRE tunnel. - # - set it admin up - # - assign an IP Address - # - Add a route via the tunnel - # - gre_if = VppGreInterface(self, - self.pg2.local_ip6, - "1002::1") - gre_if.add_vpp_config() - gre_if.admin_up() - gre_if.config_ip6() - - route_via_tun = VppIpRoute(self, "4004::1", 128, - [VppRoutePath("0::0", - gre_if.sw_if_index)]) - - route_via_tun.add_vpp_config() - - # - # Send a packet stream that is routed into the tunnel - # - they are all dropped since the tunnel's destintation IP - # is unresolved - or resolves via the default route - which - # which is a drop. - # - tx = self.create_stream_ip6(self.pg2, "5005::1", "4004::1") - self.send_and_assert_no_replies( - self.pg2, tx, - "GRE packets forwarded without DIP resolved") - - # - # Add a route that resolves the tunnel's destination - # - route_tun_dst = VppIpRoute(self, "1002::1", 128, - [VppRoutePath(self.pg2.remote_ip6, - self.pg2.sw_if_index)]) - route_tun_dst.add_vpp_config() - - # - # Send a packet stream that is routed into the tunnel - # - packets are GRE encapped - # - tx = self.create_stream_ip6(self.pg2, "5005::1", "4004::1") - rx = self.send_and_expect(self.pg2, tx, self.pg2) - self.verify_tunneled_6o6(self.pg2, rx, tx, - self.pg2.local_ip6, "1002::1") - - # - # Test decap. decapped packets go out pg1 - # - tx = self.create_tunnel_stream_6o6(self.pg2, - "1002::1", - self.pg2.local_ip6, - "2001::1", - self.pg1.remote_ip6) - rx = self.send_and_expect(self.pg2, tx, self.pg1) - - # - # RX'd packet is UDP over IPv6, test the GRE header is gone. - # - self.assertFalse(rx[0].haslayer(GRE)) - self.assertEqual(rx[0][IPv6].dst, self.pg1.remote_ip6) - - # - # Send v4 over v6 - # - route4_via_tun = VppIpRoute(self, "1.1.1.1", 32, - [VppRoutePath("0.0.0.0", - gre_if.sw_if_index)]) - route4_via_tun.add_vpp_config() - - tx = self.create_stream_ip4(self.pg0, "1.1.1.2", "1.1.1.1") - rx = self.send_and_expect(self.pg0, tx, self.pg2) - - self.verify_tunneled_4o6(self.pg0, rx, tx, - self.pg2.local_ip6, "1002::1") - - # - # test case cleanup - # - route_tun_dst.remove_vpp_config() - route_via_tun.remove_vpp_config() - route4_via_tun.remove_vpp_config() - gre_if.remove_vpp_config() - - self.pg2.unconfig_ip6() - self.pg1.unconfig_ip6() - - def test_gre_vrf(self): - """ GRE tunnel VRF Tests """ - - e = VppEnum.vl_api_tunnel_encap_decap_flags_t - - # - # Create an L3 GRE tunnel whose destination is in the non-default - # table. The underlay is thus non-default - the overlay is still - # the default. - # - set it admin up - # - assign an IP Addres - # - gre_if = VppGreInterface( - self, self.pg1.local_ip4, - "2.2.2.2", - outer_table_id=1, - flags=(e.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP | - e.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)) - - gre_if.add_vpp_config() - gre_if.admin_up() - gre_if.config_ip4() - - # - # Add a route via the tunnel - in the overlay - # - route_via_tun = VppIpRoute(self, "9.9.9.9", 32, - [VppRoutePath("0.0.0.0", - gre_if.sw_if_index)]) - route_via_tun.add_vpp_config() - - # - # Add a route that resolves the tunnel's destination - in the - # underlay table - # - route_tun_dst = VppIpRoute(self, "2.2.2.2", 32, table_id=1, - paths=[VppRoutePath(self.pg1.remote_ip4, - self.pg1.sw_if_index)]) - route_tun_dst.add_vpp_config() - - # - # Send a packet stream that is routed into the tunnel - # packets are sent in on pg0 which is in the default table - # - packets are GRE encapped - # - self.vapi.cli("clear trace") - tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "9.9.9.9", - dscp=5, ecn=3) - rx = self.send_and_expect(self.pg0, tx, self.pg1) - self.verify_tunneled_4o4(self.pg1, rx, tx, - self.pg1.local_ip4, "2.2.2.2", - dscp=5, ecn=3) - - # - # Send tunneled packets that match the created tunnel and - # are decapped and forwarded. This tests the decap lookup - # does not happen in the encap table - # - self.vapi.cli("clear trace") - tx = self.create_tunnel_stream_4o4(self.pg1, - "2.2.2.2", - self.pg1.local_ip4, - self.pg0.local_ip4, - self.pg0.remote_ip4) - rx = self.send_and_expect(self.pg1, tx, self.pg0) - self.verify_decapped_4o4(self.pg0, rx, tx) - - # - # Send tunneled packets that match the created tunnel - # but arrive on an interface that is not in the tunnel's - # encap VRF, these are dropped. - # IP enable the interface so they aren't dropped due to - # IP not being enabled. - # - self.pg2.config_ip4() - self.vapi.cli("clear trace") - tx = self.create_tunnel_stream_4o4(self.pg2, - "2.2.2.2", - self.pg1.local_ip4, - self.pg0.local_ip4, - self.pg0.remote_ip4) - rx = self.send_and_assert_no_replies( - self.pg2, tx, - "GRE decap packets in wrong VRF") - - self.pg2.unconfig_ip4() - - # - # test case cleanup - # - route_tun_dst.remove_vpp_config() - route_via_tun.remove_vpp_config() - gre_if.remove_vpp_config() - - def test_gre_l2(self): - """ GRE tunnel L2 Tests """ - - # - # Add routes to resolve the tunnel destinations - # - route_tun1_dst = VppIpRoute(self, "2.2.2.2", 32, - [VppRoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index)]) - route_tun2_dst = VppIpRoute(self, "2.2.2.3", 32, - [VppRoutePath(self.pg0.remote_ip4, - self.pg0.sw_if_index)]) - - route_tun1_dst.add_vpp_config() - route_tun2_dst.add_vpp_config() - - # - # Create 2 L2 GRE tunnels and x-connect them - # - gre_if1 = VppGreInterface(self, self.pg0.local_ip4, - "2.2.2.2", - type=(VppEnum.vl_api_gre_tunnel_type_t. - GRE_API_TUNNEL_TYPE_TEB)) - gre_if2 = VppGreInterface(self, self.pg0.local_ip4, - "2.2.2.3", - type=(VppEnum.vl_api_gre_tunnel_type_t. - GRE_API_TUNNEL_TYPE_TEB)) - gre_if1.add_vpp_config() - gre_if2.add_vpp_config() - - gre_if1.admin_up() - gre_if2.admin_up() - - self.vapi.sw_interface_set_l2_xconnect(gre_if1.sw_if_index, - gre_if2.sw_if_index, - enable=1) - self.vapi.sw_interface_set_l2_xconnect(gre_if2.sw_if_index, - gre_if1.sw_if_index, - enable=1) - - # - # Send in tunnel encapped L2. expect out tunnel encapped L2 - # in both directions - # - tx = self.create_tunnel_stream_l2o4(self.pg0, - "2.2.2.2", - self.pg0.local_ip4) - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_tunneled_l2o4(self.pg0, rx, tx, - self.pg0.local_ip4, - "2.2.2.3") - - tx = self.create_tunnel_stream_l2o4(self.pg0, - "2.2.2.3", - self.pg0.local_ip4) - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_tunneled_l2o4(self.pg0, rx, tx, - self.pg0.local_ip4, - "2.2.2.2") - - self.vapi.sw_interface_set_l2_xconnect(gre_if1.sw_if_index, - gre_if2.sw_if_index, - enable=0) - self.vapi.sw_interface_set_l2_xconnect(gre_if2.sw_if_index, - gre_if1.sw_if_index, - enable=0) - - # - # Create a VLAN sub-interfaces on the GRE TEB interfaces - # then x-connect them - # - gre_if_11 = VppDot1QSubint(self, gre_if1, 11) - gre_if_12 = VppDot1QSubint(self, gre_if2, 12) - - # gre_if_11.add_vpp_config() - # gre_if_12.add_vpp_config() - - gre_if_11.admin_up() - gre_if_12.admin_up() - - self.vapi.sw_interface_set_l2_xconnect(gre_if_11.sw_if_index, - gre_if_12.sw_if_index, - enable=1) - self.vapi.sw_interface_set_l2_xconnect(gre_if_12.sw_if_index, - gre_if_11.sw_if_index, - enable=1) - - # - # Configure both to pop thier respective VLAN tags, - # so that during the x-coonect they will subsequently push - # - self.vapi.l2_interface_vlan_tag_rewrite( - sw_if_index=gre_if_12.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, - push_dot1q=12) - self.vapi.l2_interface_vlan_tag_rewrite( - sw_if_index=gre_if_11.sw_if_index, vtr_op=L2_VTR_OP.L2_POP_1, - push_dot1q=11) - - # - # Send traffic in both directiond - expect the VLAN tags to - # be swapped. - # - tx = self.create_tunnel_stream_vlano4(self.pg0, - "2.2.2.2", - self.pg0.local_ip4, - 11) - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_tunneled_vlano4(self.pg0, rx, tx, - self.pg0.local_ip4, - "2.2.2.3", - 12) - - tx = self.create_tunnel_stream_vlano4(self.pg0, - "2.2.2.3", - self.pg0.local_ip4, - 12) - rx = self.send_and_expect(self.pg0, tx, self.pg0) - self.verify_tunneled_vlano4(self.pg0, rx, tx, - self.pg0.local_ip4, - "2.2.2.2", - 11) - - # - # Cleanup Test resources - # - gre_if_11.remove_vpp_config() - gre_if_12.remove_vpp_config() - gre_if1.remove_vpp_config() - gre_if2.remove_vpp_config() - route_tun1_dst.add_vpp_config() - route_tun2_dst.add_vpp_config() - - def test_gre_loop(self): - """ GRE tunnel loop Tests """ - - # - # Create an L3 GRE tunnel. - # - set it admin up - # - assign an IP Addres - # - gre_if = VppGreInterface(self, - self.pg0.local_ip4, - "1.1.1.2") - gre_if.add_vpp_config() - gre_if.admin_up() - gre_if.config_ip4() - - # - # add a route to the tunnel's destination that points - # through the tunnel, hence forming a loop in the forwarding - # graph - # - route_dst = VppIpRoute(self, "1.1.1.2", 32, - [VppRoutePath("0.0.0.0", - gre_if.sw_if_index)]) - route_dst.add_vpp_config() - - # - # packets to the tunnels destination should be dropped - # - tx = self.create_stream_ip4(self.pg0, "1.1.1.1", "1.1.1.2") - self.send_and_assert_no_replies(self.pg2, tx) - - self.logger.info(self.vapi.ppcli("sh adj 7")) - - # - # break the loop - # - route_dst.modify([VppRoutePath(self.pg1.remote_ip4, - self.pg1.sw_if_index)]) - route_dst.add_vpp_config() - - rx = self.send_and_expect(self.pg0, tx, self.pg1) - - # - # a good route throught the tunnel to check it restacked - # - route_via_tun_2 = VppIpRoute(self, "2.2.2.2", 32, - [VppRoutePath("0.0.0.0", - gre_if.sw_if_index)]) - route_via_tun_2.add_vpp_config() - - tx = self.create_stream_ip4(self.pg0, "2.2.2.3", "2.2.2.2") - rx = self.send_and_expect(self.pg0, tx, self.pg1) - self.verify_tunneled_4o4(self.pg1, rx, tx, - self.pg0.local_ip4, "1.1.1.2") - - # - # cleanup - # - route_via_tun_2.remove_vpp_config() - gre_if.remove_vpp_config() - - def test_mgre(self): - """ mGRE IPv4 tunnel Tests """ - - for itf in self.pg_interfaces[3:]: - # - # one underlay nh for each overlay/tunnel peer - # - itf.generate_remote_hosts(4) - itf.configure_ipv4_neighbors() - - # - # Create an L3 GRE tunnel. - # - set it admin up - # - assign an IP Addres - # - Add a route via the tunnel - # - gre_if = VppGreInterface(self, - itf.local_ip4, - "0.0.0.0", - mode=(VppEnum.vl_api_tunnel_mode_t. - TUNNEL_API_MODE_MP)) - gre_if.add_vpp_config() - gre_if.admin_up() - gre_if.config_ip4() - gre_if.generate_remote_hosts(4) - - self.logger.info(self.vapi.cli("sh adj")) - self.logger.info(self.vapi.cli("sh ip fib")) - - # - # ensure we don't match to the tunnel if the source address - # is all zeros - # - tx = self.create_tunnel_stream_4o4(self.pg0, - "0.0.0.0", - itf.local_ip4, - self.pg0.local_ip4, - self.pg0.remote_ip4) - self.send_and_assert_no_replies(self.pg0, tx) - - # - # for-each peer - # - for ii in range(1, 4): - route_addr = "4.4.4.%d" % ii - tx_e = self.create_stream_ip4(self.pg0, "5.5.5.5", route_addr) - - # - # route traffic via the peer - # - route_via_tun = VppIpRoute( - self, route_addr, 32, - [VppRoutePath(gre_if._remote_hosts[ii].ip4, - gre_if.sw_if_index)]) - route_via_tun.add_vpp_config() - - # all packets dropped at this point - rx = self.send_and_assert_no_replies(self.pg0, tx_e) - - gre_if.admin_down() - gre_if.admin_up() - rx = self.send_and_assert_no_replies(self.pg0, tx_e) - - # - # Add a TEIB entry resolves the peer - # - teib = VppTeib(self, gre_if, - gre_if._remote_hosts[ii].ip4, - itf._remote_hosts[ii].ip4) - teib.add_vpp_config() - - # - # Send a packet stream that is routed into the tunnel - # - packets are GRE encapped - # - rx = self.send_and_expect(self.pg0, tx_e, itf) - self.verify_tunneled_4o4(self.pg0, rx, tx_e, - itf.local_ip4, - itf._remote_hosts[ii].ip4) - - tx_i = self.create_tunnel_stream_4o4(self.pg0, - itf._remote_hosts[ii].ip4, - itf.local_ip4, - self.pg0.local_ip4, - self.pg0.remote_ip4) - rx = self.send_and_expect(self.pg0, tx_i, self.pg0) - self.verify_decapped_4o4(self.pg0, rx, tx_i) - - # - # delete and re-add the TEIB - # - teib.remove_vpp_config() - self.send_and_assert_no_replies(self.pg0, tx_e) - self.send_and_assert_no_replies(self.pg0, tx_i) - - teib.add_vpp_config() - rx = self.send_and_expect(self.pg0, tx_e, itf) - self.verify_tunneled_4o4(self.pg0, rx, tx_e, - itf.local_ip4, - itf._remote_hosts[ii].ip4) - rx = self.send_and_expect(self.pg0, tx_i, self.pg0) - self.verify_decapped_4o4(self.pg0, rx, tx_i) - - # - # bounce the interface state and try packets again - # - gre_if.admin_down() - gre_if.admin_up() - rx = self.send_and_expect(self.pg0, tx_e, itf) - self.verify_tunneled_4o4(self.pg0, rx, tx_e, - itf.local_ip4, - itf._remote_hosts[ii].ip4) - rx = self.send_and_expect(self.pg0, tx_i, self.pg0) - self.verify_decapped_4o4(self.pg0, rx, tx_i) - - gre_if.admin_down() - gre_if.unconfig_ip4() - - def test_mgre6(self): - """ mGRE IPv6 tunnel Tests """ - - self.pg0.config_ip6() - self.pg0.resolve_ndp() - - e = VppEnum.vl_api_tunnel_encap_decap_flags_t - - for itf in self.pg_interfaces[3:]: - # - # one underlay nh for each overlay/tunnel peer - # - itf.config_ip6() - itf.generate_remote_hosts(4) - itf.configure_ipv6_neighbors() - - # - # Create an L3 GRE tunnel. - # - set it admin up - # - assign an IP Addres - # - Add a route via the tunnel - # - gre_if = VppGreInterface( - self, - itf.local_ip6, - "::", - mode=(VppEnum.vl_api_tunnel_mode_t. - TUNNEL_API_MODE_MP), - flags=e.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP) - - gre_if.add_vpp_config() - gre_if.admin_up() - gre_if.config_ip6() - gre_if.generate_remote_hosts(4) - - # - # for-each peer - # - for ii in range(1, 4): - route_addr = "4::%d" % ii - - # - # Add a TEIB entry resolves the peer - # - teib = VppTeib(self, gre_if, - gre_if._remote_hosts[ii].ip6, - itf._remote_hosts[ii].ip6) - teib.add_vpp_config() - - # - # route traffic via the peer - # - route_via_tun = VppIpRoute( - self, route_addr, 128, - [VppRoutePath(gre_if._remote_hosts[ii].ip6, - gre_if.sw_if_index)]) - route_via_tun.add_vpp_config() - - # - # Send a packet stream that is routed into the tunnel - # - packets are GRE encapped - # - tx_e = self.create_stream_ip6(self.pg0, "5::5", route_addr, - dscp=2, ecn=1) - rx = self.send_and_expect(self.pg0, tx_e, itf) - self.verify_tunneled_6o6(self.pg0, rx, tx_e, - itf.local_ip6, - itf._remote_hosts[ii].ip6, - dscp=2) - tx_i = self.create_tunnel_stream_6o6(self.pg0, - itf._remote_hosts[ii].ip6, - itf.local_ip6, - self.pg0.local_ip6, - self.pg0.remote_ip6) - rx = self.send_and_expect(self.pg0, tx_i, self.pg0) - self.verify_decapped_6o6(self.pg0, rx, tx_i) - - # - # delete and re-add the TEIB - # - teib.remove_vpp_config() - self.send_and_assert_no_replies(self.pg0, tx_e) - - teib.add_vpp_config() - rx = self.send_and_expect(self.pg0, tx_e, itf) - self.verify_tunneled_6o6(self.pg0, rx, tx_e, - itf.local_ip6, - itf._remote_hosts[ii].ip6, - dscp=2) - rx = self.send_and_expect(self.pg0, tx_i, self.pg0) - self.verify_decapped_6o6(self.pg0, rx, tx_i) - - gre_if.admin_down() - gre_if.unconfig_ip4() - itf.unconfig_ip6() - self.pg0.unconfig_ip6() - - -if __name__ == '__main__': - unittest.main(testRunner=VppTestRunner) |