+class TemplateIpsecItf4(object):
+ """ IPsec Interface IPv4 """
+
+ encryption_type = ESP
+ tun4_encrypt_node_name = "esp4-encrypt-tun"
+ tun4_decrypt_node_name = "esp4-decrypt-tun"
+ 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()
+
+
+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)
+ 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)
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], n_pkts)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], 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)
+
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], 3*n_pkts)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], 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)
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], 4*n_pkts)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], 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)
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], n_pkts)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], 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.verify_tun_44(p, count=n_pkts)
+
+ # teardown
+ 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"
+ tun6_input_node = "ipsec6-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):
+ 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()
+
+
+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_44(self):
+ """IPSEC interface IPv6"""
+
+ n_pkts = 127
+ p = self.ipv6_params
+
+ self.config_network(p)
+ 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)
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], n_pkts)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], 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)
+
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], 3*n_pkts)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], 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)
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], 4*n_pkts)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], 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
+
+ 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)
+ c = p.tun_if.get_rx_stats()
+ self.assertEqual(c['packets'], n_pkts)
+ c = p.tun_if.get_tx_stats()
+ self.assertEqual(c['packets'], n_pkts)
+
+ # teardown
+ self.unconfig_protect(np)
+ self.unconfig_sa(np)
+ 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"
+ 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)
+ 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()
+
+ # 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.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)
+ 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)
+ 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)
+
+ 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)
+
+
+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)
+
+
Code Review / vpp.git / blobdiff