X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_gre.py;h=e73ba2f99a626d2ba96b2fee0691f6c1944ff116;hb=e5b94dded;hp=92fc3bc91914ca41571f5733d3c96b95c897db50;hpb=a5b2eec0535f9025319a752891d77ff9948ae0df;p=vpp.git diff --git a/test/test_gre.py b/test/test_gre.py index 92fc3bc9191..e73ba2f99a6 100644 --- a/test/test_gre.py +++ b/test/test_gre.py @@ -1,4 +1,4 @@ -#!/usr/bin/env python +#!/usr/bin/env python3 import unittest @@ -10,18 +10,59 @@ from scapy.layers.inet6 import IPv6 from scapy.volatile import RandMAC, RandIP from framework import VppTestCase, VppTestRunner -from vpp_sub_interface import VppDot1QSubint -from vpp_gre_interface import VppGreInterface, VppGre6Interface +from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint +from vpp_gre_interface import VppGreInterface +from vpp_nhrp import VppNhrp from vpp_ip import DpoProto -from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable -from vpp_papi_provider import L2_VTR_OP +from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable, FibPathProto from util import ppp, ppc +from vpp_papi import VppEnum -class GreTunnelTypes: - TT_L3 = 0 - TT_TEB = 1 - TT_ERSPAN = 2 +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-input/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-input/unknown ip protocol')[0] + # expect no new errors + self.assertEqual(err, err_count) class TestGRE(VppTestCase): @@ -31,11 +72,15 @@ class TestGRE(VppTestCase): 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(3)) + self.create_pg_interfaces(range(5)) self.tbl = VppIpTable(self, 1) self.tbl.add_vpp_config() @@ -50,6 +95,10 @@ class TestGRE(VppTestCase): 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: @@ -59,26 +108,28 @@ class TestGRE(VppTestCase): self.pg1.set_table_ip4(0) super(TestGRE, self).tearDown() - def create_stream_ip4(self, src_if, src_ip, dst_ip): + 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) / + 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): + 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) / + IPv6(src=src_ip, dst=dst_ip, tc=tc) / UDP(sport=1234, dport=1234) / Raw(payload)) info.data = p.copy() @@ -176,9 +227,11 @@ class TestGRE(VppTestCase): return pkts def verify_tunneled_4o4(self, src_if, capture, sent, - tunnel_src, tunnel_dst): + 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: @@ -190,6 +243,7 @@ class TestGRE(VppTestCase): self.assertEqual(rx_ip.src, tunnel_src) self.assertEqual(rx_ip.dst, tunnel_dst) + self.assertEqual(rx_ip.tos, tos) rx_gre = rx[GRE] rx_ip = rx_gre[IP] @@ -205,9 +259,11 @@ class TestGRE(VppTestCase): raise def verify_tunneled_6o6(self, src_if, capture, sent, - tunnel_src, tunnel_dst): + 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: @@ -219,6 +275,7 @@ class TestGRE(VppTestCase): 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)) rx_ip = rx_gre[IPv6] @@ -402,6 +459,28 @@ class TestGRE(VppTestCase): 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 """ @@ -438,7 +517,7 @@ class TestGRE(VppTestCase): # # Send a packet stream that is routed into the tunnel - # - they are all dropped since the tunnel's desintation IP + # - they are all dropped since the tunnel's destintation IP # is unresolved - or resolves via the default route - which # which is a drop. # @@ -532,8 +611,7 @@ class TestGRE(VppTestCase): self, "2001::1", 128, [VppRoutePath("::", gre_if.sw_if_index, - proto=DpoProto.DPO_PROTO_IP6)], - is_ip6=1) + proto=DpoProto.DPO_PROTO_IP6)]) route6_via_tun.add_vpp_config() tx = self.create_stream_ip6(self.pg0, "2001::2", "2001::1") @@ -564,25 +642,22 @@ class TestGRE(VppTestCase): # - assign an IP Address # - Add a route via the tunnel # - gre_if = VppGre6Interface(self, - self.pg2.local_ip6, - "1002::1") + 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, - proto=DpoProto.DPO_PROTO_IP6)], - is_ip6=1) + 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 desintation IP + # - they are all dropped since the tunnel's destintation IP # is unresolved - or resolves via the default route - which # which is a drop. # @@ -594,12 +669,9 @@ class TestGRE(VppTestCase): # # 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, - proto=DpoProto.DPO_PROTO_IP6)], - is_ip6=1) + route_tun_dst = VppIpRoute(self, "1002::1", 128, + [VppRoutePath(self.pg2.remote_ip6, + self.pg2.sw_if_index)]) route_tun_dst.add_vpp_config() # @@ -655,6 +727,8 @@ class TestGRE(VppTestCase): 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 @@ -662,9 +736,13 @@ class TestGRE(VppTestCase): # - set it admin up # - assign an IP Addres # - gre_if = VppGreInterface(self, self.pg1.local_ip4, - "2.2.2.2", - outer_fib_id=1) + 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() @@ -692,10 +770,12 @@ class TestGRE(VppTestCase): # - packets are GRE encapped # self.vapi.cli("clear trace") - tx = self.create_stream_ip4(self.pg0, "5.5.5.5", "9.9.9.9") + 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") + self.pg1.local_ip4, "2.2.2.2", + dscp=5, ecn=3) # # Send tunneled packets that match the created tunnel and @@ -759,10 +839,12 @@ class TestGRE(VppTestCase): # gre_if1 = VppGreInterface(self, self.pg0.local_ip4, "2.2.2.2", - type=GreTunnelTypes.TT_TEB) + 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=GreTunnelTypes.TT_TEB) + type=(VppEnum.vl_api_gre_tunnel_type_t. + GRE_API_TUNNEL_TYPE_TEB)) gre_if1.add_vpp_config() gre_if2.add_vpp_config() @@ -929,6 +1011,202 @@ class TestGRE(VppTestCase): 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 + + # + # 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() + + # + # Add a NHRP entry resolves the peer + # + nhrp = VppNhrp(self, gre_if, + gre_if._remote_hosts[ii].ip4, + itf._remote_hosts[ii].ip4) + nhrp.add_vpp_config() + + # + # Send a packet stream that is routed into the tunnel + # - packets are GRE encapped + # + tx_e = self.create_stream_ip4(self.pg0, "5.5.5.5", route_addr) + 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 NHRP + # + nhrp.remove_vpp_config() + self.send_and_assert_no_replies(self.pg0, tx_e) + self.send_and_assert_no_replies(self.pg0, tx_i) + + nhrp.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) + + 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 NHRP entry resolves the peer + # + nhrp = VppNhrp(self, gre_if, + gre_if._remote_hosts[ii].ip6, + itf._remote_hosts[ii].ip6) + nhrp.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 NHRP + # + nhrp.remove_vpp_config() + self.send_and_assert_no_replies(self.pg0, tx_e) + + nhrp.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)