+class TemplateIpsecItf4(object):
+ """IPsec Interface IPv4"""
+
+ encryption_type = ESP
+ tun4_encrypt_node_name = "esp4-encrypt-tun"
+ tun4_decrypt_node_name = ["esp4-decrypt-tun", "esp4-decrypt-tun-post"]
+ tun4_input_node = "ipsec4-tun-input"
+
+ def config_sa_tun(self, p, src, dst):
+ config_tun_params(p, self.encryption_type, None, src, dst)
+
+ p.tun_sa_out = VppIpsecSA(
+ self,
+ p.scapy_tun_sa_id,
+ p.scapy_tun_spi,
+ p.auth_algo_vpp_id,
+ p.auth_key,
+ p.crypt_algo_vpp_id,
+ p.crypt_key,
+ self.vpp_esp_protocol,
+ src,
+ dst,
+ flags=p.flags,
+ )
+ p.tun_sa_out.add_vpp_config()
+
+ p.tun_sa_in = VppIpsecSA(
+ self,
+ p.vpp_tun_sa_id,
+ p.vpp_tun_spi,
+ p.auth_algo_vpp_id,
+ p.auth_key,
+ p.crypt_algo_vpp_id,
+ p.crypt_key,
+ self.vpp_esp_protocol,
+ dst,
+ src,
+ flags=p.flags,
+ )
+ p.tun_sa_in.add_vpp_config()
+
+ def config_protect(self, p):
+ p.tun_protect = VppIpsecTunProtect(self, p.tun_if, p.tun_sa_out, [p.tun_sa_in])
+ p.tun_protect.add_vpp_config()
+
+ def config_network(self, p, instance=0xFFFFFFFF):
+ p.tun_if = VppIpsecInterface(self, instance=instance)
+
+ p.tun_if.add_vpp_config()
+ p.tun_if.admin_up()
+ p.tun_if.config_ip4()
+ p.tun_if.config_ip6()
+
+ p.route = VppIpRoute(
+ self,
+ p.remote_tun_if_host,
+ 32,
+ [VppRoutePath(p.tun_if.remote_ip4, 0xFFFFFFFF)],
+ )
+ p.route.add_vpp_config()
+ r = VppIpRoute(
+ self,
+ p.remote_tun_if_host6,
+ 128,
+ [
+ VppRoutePath(
+ p.tun_if.remote_ip6, 0xFFFFFFFF, proto=DpoProto.DPO_PROTO_IP6
+ )
+ ],
+ )
+ r.add_vpp_config()
+
+ def unconfig_network(self, p):
+ p.route.remove_vpp_config()
+ p.tun_if.remove_vpp_config()
+
+ def unconfig_protect(self, p):
+ p.tun_protect.remove_vpp_config()
+
+ def unconfig_sa(self, p):
+ p.tun_sa_out.remove_vpp_config()
+ p.tun_sa_in.remove_vpp_config()
+
+
+@tag_fixme_vpp_workers
+class TestIpsecItf4(TemplateIpsec, TemplateIpsecItf4, IpsecTun4):
+ """IPsec Interface IPv4"""
+
+ def setUp(self):
+ super(TestIpsecItf4, self).setUp()
+
+ self.tun_if = self.pg0
+
+ def tearDown(self):
+ super(TestIpsecItf4, self).tearDown()
+
+ def test_tun_instance_44(self):
+ p = self.ipv4_params
+ self.config_network(p, instance=3)
+
+ with self.assertRaises(CliFailedCommandError):
+ self.vapi.cli("show interface ipsec0")
+
+ output = self.vapi.cli("show interface ipsec3")
+ self.assertTrue("unknown" not in output)
+
+ self.unconfig_network(p)
+
+ def test_tun_44(self):
+ """IPSEC interface IPv4"""
+
+ n_pkts = 127
+ p = self.ipv4_params
+
+ self.config_network(p)
+ config_tun_params(
+ p, self.encryption_type, None, self.pg0.local_ip4, self.pg0.remote_ip4
+ )
+ self.verify_tun_dropped_44(p, count=n_pkts)
+ self.config_sa_tun(p, self.pg0.local_ip4, self.pg0.remote_ip4)
+ self.config_protect(p)
+
+ self.verify_tun_44(p, count=n_pkts)
+ self.assertEqual(p.tun_if.get_rx_stats(), n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), n_pkts)
+
+ p.tun_if.admin_down()
+ self.verify_tun_dropped_44(p, count=n_pkts)
+ p.tun_if.admin_up()
+ self.verify_tun_44(p, count=n_pkts)
+
+ self.assertEqual(p.tun_if.get_rx_stats(), 3 * n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), 2 * n_pkts)
+
+ # it's a v6 packet when its encrypted
+ self.tun4_encrypt_node_name = "esp6-encrypt-tun"
+
+ self.verify_tun_64(p, count=n_pkts)
+ self.assertEqual(p.tun_if.get_rx_stats(), 4 * n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), 3 * n_pkts)
+
+ self.tun4_encrypt_node_name = "esp4-encrypt-tun"
+
+ self.vapi.cli("clear interfaces")
+
+ # rekey - create new SAs and update the tunnel protection
+ np = copy.copy(p)
+ np.crypt_key = b"X" + p.crypt_key[1:]
+ np.scapy_tun_spi += 100
+ np.scapy_tun_sa_id += 1
+ np.vpp_tun_spi += 100
+ np.vpp_tun_sa_id += 1
+ np.tun_if.local_spi = p.vpp_tun_spi
+ np.tun_if.remote_spi = p.scapy_tun_spi
+
+ self.config_sa_tun(np, self.pg0.local_ip4, self.pg0.remote_ip4)
+ self.config_protect(np)
+ self.unconfig_sa(p)
+
+ self.verify_tun_44(np, count=n_pkts)
+ self.assertEqual(p.tun_if.get_rx_stats(), n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), n_pkts)
+
+ # teardown
+ self.unconfig_protect(np)
+ self.unconfig_sa(np)
+ self.unconfig_network(p)
+
+ def test_tun_44_null(self):
+ """IPSEC interface IPv4 NULL auth/crypto"""
+
+ n_pkts = 127
+ p = copy.copy(self.ipv4_params)
+
+ p.auth_algo_vpp_id = VppEnum.vl_api_ipsec_integ_alg_t.IPSEC_API_INTEG_ALG_NONE
+ p.crypt_algo_vpp_id = (
+ VppEnum.vl_api_ipsec_crypto_alg_t.IPSEC_API_CRYPTO_ALG_NONE
+ )
+ p.crypt_algo = "NULL"
+ p.auth_algo = "NULL"
+
+ self.config_network(p)
+ self.config_sa_tun(p, self.pg0.local_ip4, self.pg0.remote_ip4)
+ self.config_protect(p)
+
+ self.logger.info(self.vapi.cli("sh ipsec sa"))
+ self.verify_tun_44(p, count=n_pkts)
+
+ # teardown
+ self.unconfig_protect(p)
+ self.unconfig_sa(p)
+ self.unconfig_network(p)
+
+ def test_tun_44_police(self):
+ """IPSEC interface IPv4 with input policer"""
+ n_pkts = 127
+ p = self.ipv4_params
+
+ self.config_network(p)
+ self.config_sa_tun(p, self.pg0.local_ip4, self.pg0.remote_ip4)
+ self.config_protect(p)
+
+ action_tx = PolicerAction(
+ VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT, 0
+ )
+ policer = VppPolicer(
+ self,
+ "pol1",
+ 80,
+ 0,
+ 1000,
+ 0,
+ conform_action=action_tx,
+ exceed_action=action_tx,
+ violate_action=action_tx,
+ )
+ policer.add_vpp_config()
+
+ # Start policing on tun
+ policer.apply_vpp_config(p.tun_if.sw_if_index, Dir.RX, True)
+
+ self.verify_tun_44(p, count=n_pkts)
+ self.assertEqual(p.tun_if.get_rx_stats(), n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), n_pkts)
+
+ stats = policer.get_stats()
+
+ # Single rate, 2 colour policer - expect conform, violate but no exceed
+ self.assertGreater(stats["conform_packets"], 0)
+ self.assertEqual(stats["exceed_packets"], 0)
+ self.assertGreater(stats["violate_packets"], 0)
+
+ # Stop policing on tun
+ policer.apply_vpp_config(p.tun_if.sw_if_index, Dir.RX, False)
+ self.verify_tun_44(p, count=n_pkts)
+
+ # No new policer stats
+ statsnew = policer.get_stats()
+ self.assertEqual(stats, statsnew)
+
+ # teardown
+ policer.remove_vpp_config()
+ self.unconfig_protect(p)
+ self.unconfig_sa(p)
+ self.unconfig_network(p)
+
+
+class TestIpsecItf4MPLS(TemplateIpsec, TemplateIpsecItf4, IpsecTun4):
+ """IPsec Interface MPLSoIPv4"""
+
+ tun4_encrypt_node_name = "esp-mpls-encrypt-tun"
+
+ def setUp(self):
+ super(TestIpsecItf4MPLS, self).setUp()
+
+ self.tun_if = self.pg0
+
+ def tearDown(self):
+ super(TestIpsecItf4MPLS, self).tearDown()
+
+ def gen_encrypt_pkts(self, p, sa, sw_intf, src, dst, count=1, payload_size=100):
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / sa.encrypt(
+ MPLS(label=44, ttl=3)
+ / IP(src=src, dst=dst)
+ / UDP(sport=1166, dport=2233)
+ / Raw(b"X" * payload_size)
+ )
+ for i in range(count)
+ ]
+
+ def verify_encrypted(self, p, sa, rxs):
+ for rx in rxs:
+ try:
+ pkt = sa.decrypt(rx[IP])
+ if not pkt.haslayer(IP):
+ pkt = IP(pkt[Raw].load)
+ self.assert_packet_checksums_valid(pkt)
+ self.assert_equal(pkt[MPLS].label, 44)
+ self.assert_equal(pkt[IP].dst, p.remote_tun_if_host)
+ except (IndexError, AssertionError):
+ self.logger.debug(ppp("Unexpected packet:", rx))
+ try:
+ self.logger.debug(ppp("Decrypted packet:", pkt))
+ except:
+ pass
+ raise
+
+ def test_tun_mpls_o_ip4(self):
+ """IPSEC interface MPLS over IPv4"""
+
+ n_pkts = 127
+ p = self.ipv4_params
+ f = FibPathProto
+
+ tbl = VppMplsTable(self, 0)
+ tbl.add_vpp_config()
+
+ self.config_network(p)
+ # deag MPLS routes from the tunnel
+ r4 = VppMplsRoute(
+ self, 44, 1, [VppRoutePath(self.pg1.remote_ip4, self.pg1.sw_if_index)]
+ ).add_vpp_config()
+ p.route.modify(
+ [
+ VppRoutePath(
+ p.tun_if.remote_ip4, p.tun_if.sw_if_index, labels=[VppMplsLabel(44)]
+ )
+ ]
+ )
+ p.tun_if.enable_mpls()
+
+ self.config_sa_tun(p, self.pg0.local_ip4, self.pg0.remote_ip4)
+ self.config_protect(p)
+
+ self.verify_tun_44(p, count=n_pkts)
+
+ # cleanup
+ p.tun_if.disable_mpls()
+ self.unconfig_protect(p)
+ self.unconfig_sa(p)
+ self.unconfig_network(p)
+
+
+class TemplateIpsecItf6(object):
+ """IPsec Interface IPv6"""
+
+ encryption_type = ESP
+ tun6_encrypt_node_name = "esp6-encrypt-tun"
+ tun6_decrypt_node_name = ["esp6-decrypt-tun", "esp6-decrypt-tun-post"]
+ tun6_input_node = "ipsec6-tun-input"
+
+ def config_sa_tun(self, p, src, dst):
+ config_tun_params(p, self.encryption_type, None, src, dst)
+
+ if not hasattr(p, "tun_flags"):
+ p.tun_flags = None
+ if not hasattr(p, "hop_limit"):
+ p.hop_limit = 255
+
+ p.tun_sa_out = VppIpsecSA(
+ self,
+ p.scapy_tun_sa_id,
+ p.scapy_tun_spi,
+ p.auth_algo_vpp_id,
+ p.auth_key,
+ p.crypt_algo_vpp_id,
+ p.crypt_key,
+ self.vpp_esp_protocol,
+ src,
+ dst,
+ flags=p.flags,
+ tun_flags=p.tun_flags,
+ hop_limit=p.hop_limit,
+ )
+ p.tun_sa_out.add_vpp_config()
+
+ p.tun_sa_in = VppIpsecSA(
+ self,
+ p.vpp_tun_sa_id,
+ p.vpp_tun_spi,
+ p.auth_algo_vpp_id,
+ p.auth_key,
+ p.crypt_algo_vpp_id,
+ p.crypt_key,
+ self.vpp_esp_protocol,
+ dst,
+ src,
+ flags=p.flags,
+ )
+ p.tun_sa_in.add_vpp_config()
+
+ def config_protect(self, p):
+ p.tun_protect = VppIpsecTunProtect(self, p.tun_if, p.tun_sa_out, [p.tun_sa_in])
+ p.tun_protect.add_vpp_config()
+
+ def config_network(self, p):
+ p.tun_if = VppIpsecInterface(self)
+
+ p.tun_if.add_vpp_config()
+ p.tun_if.admin_up()
+ p.tun_if.config_ip4()
+ p.tun_if.config_ip6()
+
+ r = VppIpRoute(
+ self,
+ p.remote_tun_if_host4,
+ 32,
+ [VppRoutePath(p.tun_if.remote_ip4, 0xFFFFFFFF)],
+ )
+ r.add_vpp_config()
+
+ p.route = VppIpRoute(
+ self,
+ p.remote_tun_if_host,
+ 128,
+ [
+ VppRoutePath(
+ p.tun_if.remote_ip6, 0xFFFFFFFF, proto=DpoProto.DPO_PROTO_IP6
+ )
+ ],
+ )
+ p.route.add_vpp_config()
+
+ def unconfig_network(self, p):
+ p.route.remove_vpp_config()
+ p.tun_if.remove_vpp_config()
+
+ def unconfig_protect(self, p):
+ p.tun_protect.remove_vpp_config()
+
+ def unconfig_sa(self, p):
+ p.tun_sa_out.remove_vpp_config()
+ p.tun_sa_in.remove_vpp_config()
+
+
+@tag_fixme_vpp_workers
+class TestIpsecItf6(TemplateIpsec, TemplateIpsecItf6, IpsecTun6):
+ """IPsec Interface IPv6"""
+
+ def setUp(self):
+ super(TestIpsecItf6, self).setUp()
+
+ self.tun_if = self.pg0
+
+ def tearDown(self):
+ super(TestIpsecItf6, self).tearDown()
+
+ def test_tun_66(self):
+ """IPSEC interface IPv6"""
+
+ tf = VppEnum.vl_api_tunnel_encap_decap_flags_t
+ n_pkts = 127
+ p = self.ipv6_params
+ p.inner_hop_limit = 24
+ p.outer_hop_limit = 23
+ p.outer_flow_label = 243224
+ p.tun_flags = tf.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_HOP_LIMIT
+
+ self.config_network(p)
+ config_tun_params(
+ p, self.encryption_type, None, self.pg0.local_ip6, self.pg0.remote_ip6
+ )
+ self.verify_drop_tun_66(p, count=n_pkts)
+ self.config_sa_tun(p, self.pg0.local_ip6, self.pg0.remote_ip6)
+ self.config_protect(p)
+
+ self.verify_tun_66(p, count=n_pkts)
+ self.assertEqual(p.tun_if.get_rx_stats(), n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), n_pkts)
+
+ p.tun_if.admin_down()
+ self.verify_drop_tun_66(p, count=n_pkts)
+ p.tun_if.admin_up()
+ self.verify_tun_66(p, count=n_pkts)
+
+ self.assertEqual(p.tun_if.get_rx_stats(), 3 * n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), 2 * n_pkts)
+
+ # it's a v4 packet when its encrypted
+ self.tun6_encrypt_node_name = "esp4-encrypt-tun"
+
+ self.verify_tun_46(p, count=n_pkts)
+ self.assertEqual(p.tun_if.get_rx_stats(), 4 * n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), 3 * n_pkts)
+
+ self.tun6_encrypt_node_name = "esp6-encrypt-tun"
+
+ self.vapi.cli("clear interfaces")
+
+ # rekey - create new SAs and update the tunnel protection
+ np = copy.copy(p)
+ np.crypt_key = b"X" + p.crypt_key[1:]
+ np.scapy_tun_spi += 100
+ np.scapy_tun_sa_id += 1
+ np.vpp_tun_spi += 100
+ np.vpp_tun_sa_id += 1
+ np.tun_if.local_spi = p.vpp_tun_spi
+ np.tun_if.remote_spi = p.scapy_tun_spi
+ np.inner_hop_limit = 24
+ np.outer_hop_limit = 128
+ np.inner_flow_label = 0xABCDE
+ np.outer_flow_label = 0xABCDE
+ np.hop_limit = 128
+ np.tun_flags = tf.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_FLOW_LABEL
+
+ self.config_sa_tun(np, self.pg0.local_ip6, self.pg0.remote_ip6)
+ self.config_protect(np)
+ self.unconfig_sa(p)
+
+ self.verify_tun_66(np, count=n_pkts)
+ self.assertEqual(p.tun_if.get_rx_stats(), n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), n_pkts)
+
+ # teardown
+ self.unconfig_protect(np)
+ self.unconfig_sa(np)
+ self.unconfig_network(p)
+
+ def test_tun_66_police(self):
+ """IPSEC interface IPv6 with input policer"""
+ tf = VppEnum.vl_api_tunnel_encap_decap_flags_t
+ n_pkts = 127
+ p = self.ipv6_params
+ p.inner_hop_limit = 24
+ p.outer_hop_limit = 23
+ p.outer_flow_label = 243224
+ p.tun_flags = tf.TUNNEL_API_ENCAP_DECAP_FLAG_ENCAP_COPY_HOP_LIMIT
+
+ self.config_network(p)
+ self.config_sa_tun(p, self.pg0.local_ip6, self.pg0.remote_ip6)
+ self.config_protect(p)
+
+ action_tx = PolicerAction(
+ VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT, 0
+ )
+ policer = VppPolicer(
+ self,
+ "pol1",
+ 80,
+ 0,
+ 1000,
+ 0,
+ conform_action=action_tx,
+ exceed_action=action_tx,
+ violate_action=action_tx,
+ )
+ policer.add_vpp_config()
+
+ # Start policing on tun
+ policer.apply_vpp_config(p.tun_if.sw_if_index, Dir.RX, True)
+
+ self.verify_tun_66(p, count=n_pkts)
+ self.assertEqual(p.tun_if.get_rx_stats(), n_pkts)
+ self.assertEqual(p.tun_if.get_tx_stats(), n_pkts)
+
+ stats = policer.get_stats()
+
+ # Single rate, 2 colour policer - expect conform, violate but no exceed
+ self.assertGreater(stats["conform_packets"], 0)
+ self.assertEqual(stats["exceed_packets"], 0)
+ self.assertGreater(stats["violate_packets"], 0)
+
+ # Stop policing on tun
+ policer.apply_vpp_config(p.tun_if.sw_if_index, Dir.RX, False)
+ self.verify_tun_66(p, count=n_pkts)
+
+ # No new policer stats
+ statsnew = policer.get_stats()
+ self.assertEqual(stats, statsnew)
+
+ # teardown
+ policer.remove_vpp_config()
+ self.unconfig_protect(p)
+ self.unconfig_sa(p)
+ self.unconfig_network(p)
+
+
+class TestIpsecMIfEsp4(TemplateIpsec, IpsecTun4):
+ """Ipsec P2MP ESP v4 tests"""
+
+ tun4_encrypt_node_name = "esp4-encrypt-tun"
+ tun4_decrypt_node_name = ["esp4-decrypt-tun", "esp4-decrypt-tun-post"]
+ encryption_type = ESP
+
+ def gen_encrypt_pkts(self, p, sa, sw_intf, src, dst, count=1, payload_size=100):
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / sa.encrypt(
+ IP(src=self.pg1.local_ip4, dst=self.pg1.remote_ip4)
+ / UDP(sport=1144, dport=2233)
+ / Raw(b"X" * payload_size)
+ )
+ for i in range(count)
+ ]
+
+ def gen_pkts(self, sw_intf, src, dst, count=1, payload_size=100):
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / IP(src="1.1.1.1", dst=dst)
+ / UDP(sport=1144, dport=2233)
+ / Raw(b"X" * payload_size)
+ for i in range(count)
+ ]
+
+ def verify_decrypted(self, p, rxs):
+ for rx in rxs:
+ self.assert_equal(rx[Ether].dst, self.pg1.remote_mac)
+ self.assert_equal(rx[IP].dst, self.pg1.remote_ip4)
+
+ def verify_encrypted(self, p, sa, rxs):
+ for rx in rxs:
+ try:
+ self.assertEqual(
+ rx[IP].tos, VppEnum.vl_api_ip_dscp_t.IP_API_DSCP_EF << 2
+ )
+ self.assertEqual(rx[IP].ttl, p.hop_limit)
+ pkt = sa.decrypt(rx[IP])
+ if not pkt.haslayer(IP):
+ pkt = IP(pkt[Raw].load)
+ self.assert_packet_checksums_valid(pkt)
+ e = pkt[IP]
+ self.assertEqual(e[IP].dst, p.remote_tun_if_host)
+ except (IndexError, AssertionError):
+ self.logger.debug(ppp("Unexpected packet:", rx))
+ try:
+ self.logger.debug(ppp("Decrypted packet:", pkt))
+ except:
+ pass
+ raise
+
+ def setUp(self):
+ super(TestIpsecMIfEsp4, self).setUp()
+
+ N_NHS = 16
+ self.tun_if = self.pg0
+ p = self.ipv4_params
+ p.tun_if = VppIpsecInterface(
+ self, mode=(VppEnum.vl_api_tunnel_mode_t.TUNNEL_API_MODE_MP)
+ )
+ p.tun_if.add_vpp_config()
+ p.tun_if.admin_up()
+ p.tun_if.config_ip4()
+ p.tun_if.unconfig_ip4()
+ p.tun_if.config_ip4()
+ p.tun_if.generate_remote_hosts(N_NHS)
+ self.pg0.generate_remote_hosts(N_NHS)
+ self.pg0.configure_ipv4_neighbors()
+
+ r_all = AclRule(True, src_prefix="0.0.0.0/0", dst_prefix="0.0.0.0/0", proto=0)
+ a = VppAcl(self, [r_all]).add_vpp_config()
+
+ VppAclInterface(self, self.pg0.sw_if_index, [a]).add_vpp_config()
+ VppAclInterface(self, p.tun_if.sw_if_index, [a]).add_vpp_config()
+
+ # setup some SAs for several next-hops on the interface
+ self.multi_params = []
+
+ for ii in range(N_NHS):
+ p = copy.copy(self.ipv4_params)
+
+ p.remote_tun_if_host = "1.1.1.%d" % (ii + 1)
+ p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
+ p.scapy_tun_spi = p.scapy_tun_spi + ii
+ p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
+ p.vpp_tun_spi = p.vpp_tun_spi + ii
+
+ p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
+ p.scapy_tra_spi = p.scapy_tra_spi + ii
+ p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
+ p.vpp_tra_spi = p.vpp_tra_spi + ii
+ p.hop_limit = ii + 10
+ p.tun_sa_out = VppIpsecSA(
+ self,
+ p.scapy_tun_sa_id,
+ p.scapy_tun_spi,
+ p.auth_algo_vpp_id,
+ p.auth_key,
+ p.crypt_algo_vpp_id,
+ p.crypt_key,
+ self.vpp_esp_protocol,
+ self.pg0.local_ip4,
+ self.pg0.remote_hosts[ii].ip4,
+ dscp=VppEnum.vl_api_ip_dscp_t.IP_API_DSCP_EF,
+ hop_limit=p.hop_limit,
+ )
+ p.tun_sa_out.add_vpp_config()
+
+ p.tun_sa_in = VppIpsecSA(
+ self,
+ p.vpp_tun_sa_id,
+ p.vpp_tun_spi,
+ p.auth_algo_vpp_id,
+ p.auth_key,
+ p.crypt_algo_vpp_id,
+ p.crypt_key,
+ self.vpp_esp_protocol,
+ self.pg0.remote_hosts[ii].ip4,
+ self.pg0.local_ip4,
+ dscp=VppEnum.vl_api_ip_dscp_t.IP_API_DSCP_EF,
+ hop_limit=p.hop_limit,
+ )
+ p.tun_sa_in.add_vpp_config()
+
+ p.tun_protect = VppIpsecTunProtect(
+ self,
+ p.tun_if,
+ p.tun_sa_out,
+ [p.tun_sa_in],
+ nh=p.tun_if.remote_hosts[ii].ip4,
+ )
+ p.tun_protect.add_vpp_config()
+ config_tun_params(
+ p,
+ self.encryption_type,
+ None,
+ self.pg0.local_ip4,
+ self.pg0.remote_hosts[ii].ip4,
+ )
+ self.multi_params.append(p)
+
+ p.via_tun_route = VppIpRoute(
+ self,
+ p.remote_tun_if_host,
+ 32,
+ [VppRoutePath(p.tun_if.remote_hosts[ii].ip4, p.tun_if.sw_if_index)],
+ ).add_vpp_config()
+
+ p.tun_dst = self.pg0.remote_hosts[ii].ip4
+
+ def tearDown(self):
+ p = self.ipv4_params
+ p.tun_if.unconfig_ip4()
+ super(TestIpsecMIfEsp4, self).tearDown()
+
+ def test_tun_44(self):
+ """P2MP IPSEC 44"""
+ N_PKTS = 63
+ for p in self.multi_params:
+ self.verify_tun_44(p, count=N_PKTS)
+
+ # remove one tunnel protect, the rest should still work
+ self.multi_params[0].tun_protect.remove_vpp_config()
+ self.verify_tun_dropped_44(self.multi_params[0], count=N_PKTS)
+ self.multi_params[0].via_tun_route.remove_vpp_config()
+ self.verify_tun_dropped_44(self.multi_params[0], count=N_PKTS)
+
+ for p in self.multi_params[1:]:
+ self.verify_tun_44(p, count=N_PKTS)
+
+ self.multi_params[0].tun_protect.add_vpp_config()
+ self.multi_params[0].via_tun_route.add_vpp_config()
+
+ for p in self.multi_params:
+ self.verify_tun_44(p, count=N_PKTS)
+
+
+class TestIpsecItf6MPLS(TemplateIpsec, TemplateIpsecItf6, IpsecTun6):
+ """IPsec Interface MPLSoIPv6"""
+
+ tun6_encrypt_node_name = "esp-mpls-encrypt-tun"
+
+ def setUp(self):
+ super(TestIpsecItf6MPLS, self).setUp()
+
+ self.tun_if = self.pg0
+
+ def tearDown(self):
+ super(TestIpsecItf6MPLS, self).tearDown()
+
+ def gen_encrypt_pkts6(self, p, sa, sw_intf, src, dst, count=1, payload_size=100):
+ return [
+ Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac)
+ / sa.encrypt(
+ MPLS(label=66, ttl=3)
+ / IPv6(src=src, dst=dst)
+ / UDP(sport=1166, dport=2233)
+ / Raw(b"X" * payload_size)
+ )
+ for i in range(count)
+ ]
+
+ def verify_encrypted6(self, p, sa, rxs):
+ for rx in rxs:
+ try:
+ pkt = sa.decrypt(rx[IPv6])
+ if not pkt.haslayer(IPv6):
+ pkt = IP(pkt[Raw].load)
+ self.assert_packet_checksums_valid(pkt)
+ self.assert_equal(pkt[MPLS].label, 66)
+ self.assert_equal(pkt[IPv6].dst, p.remote_tun_if_host)
+ except (IndexError, AssertionError):
+ self.logger.debug(ppp("Unexpected packet:", rx))
+ try:
+ self.logger.debug(ppp("Decrypted packet:", pkt))
+ except:
+ pass
+ raise
+
+ def test_tun_mpls_o_ip6(self):
+ """IPSEC interface MPLS over IPv6"""
+
+ n_pkts = 127
+ p = self.ipv6_params
+ f = FibPathProto
+
+ tbl = VppMplsTable(self, 0)
+ tbl.add_vpp_config()
+
+ self.config_network(p)
+ # deag MPLS routes from the tunnel
+ r6 = VppMplsRoute(
+ self,
+ 66,
+ 1,
+ [VppRoutePath(self.pg1.remote_ip6, self.pg1.sw_if_index)],
+ eos_proto=f.FIB_PATH_NH_PROTO_IP6,
+ ).add_vpp_config()
+ p.route.modify(
+ [
+ VppRoutePath(
+ p.tun_if.remote_ip6, p.tun_if.sw_if_index, labels=[VppMplsLabel(66)]
+ )
+ ]
+ )
+ p.tun_if.enable_mpls()
+
+ self.config_sa_tun(p, self.pg0.local_ip6, self.pg0.remote_ip6)
+ self.config_protect(p)
+
+ self.verify_tun_66(p, count=n_pkts)
+
+ # cleanup
+ p.tun_if.disable_mpls()
+ self.unconfig_protect(p)
+ self.unconfig_sa(p)
+ self.unconfig_network(p)
+
+
+if __name__ == "__main__":