X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_ipsec_tun_if_esp.py;h=183012608fe6378296484e8f274f31363afd6b36;hb=e6c3e8f0ee47799c76bdca362c4d75af62aacac3;hp=3cd2521e04d9857e9d901de3ba5c461b2d7f7026;hpb=b0d2eda75a268f6afc2b08080a3e00b0a3295702;p=vpp.git diff --git a/test/test_ipsec_tun_if_esp.py b/test/test_ipsec_tun_if_esp.py index 3cd2521e04d..183012608fe 100644 --- a/test/test_ipsec_tun_if_esp.py +++ b/test/test_ipsec_tun_if_esp.py @@ -15,21 +15,27 @@ from vpp_ipsec_tun_interface import VppIpsecTunInterface from vpp_gre_interface import VppGreInterface from vpp_ipip_tun_interface import VppIpIpTunInterface from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto -from vpp_ipsec import VppIpsecSA, VppIpsecTunProtect +from vpp_ipsec import VppIpsecSA, VppIpsecTunProtect, VppIpsecInterface from vpp_l2 import VppBridgeDomain, VppBridgeDomainPort from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint from vpp_teib import VppTeib from util import ppp from vpp_papi import VppEnum +from vpp_acl import AclRule, VppAcl, VppAclInterface -def config_tun_params(p, encryption_type, tun_if): +def config_tun_params(p, encryption_type, tun_if, src=None, dst=None): ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6} esn_en = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t. IPSEC_API_SAD_FLAG_USE_ESN)) crypt_key = mk_scapy_crypt_key(p) - p.tun_dst = tun_if.remote_ip - p.tun_src = tun_if.local_ip + if tun_if: + p.tun_dst = tun_if.remote_ip + p.tun_src = tun_if.local_ip + else: + p.tun_dst = dst + p.tun_src = src + p.scapy_tun_sa = SecurityAssociation( encryption_type, spi=p.vpp_tun_spi, crypt_algo=p.crypt_algo, @@ -64,13 +70,15 @@ def config_tra_params(p, encryption_type, tun_if): crypt_algo=p.crypt_algo, crypt_key=crypt_key, auth_algo=p.auth_algo, auth_key=p.auth_key, - esn_en=esn_en) + esn_en=esn_en, + nat_t_header=p.nat_header) p.vpp_tun_sa = SecurityAssociation( encryption_type, spi=p.scapy_tun_spi, crypt_algo=p.crypt_algo, crypt_key=crypt_key, auth_algo=p.auth_algo, auth_key=p.auth_key, - esn_en=esn_en) + esn_en=esn_en, + nat_t_header=p.nat_header) class TemplateIpsec4TunIfEsp(TemplateIpsec): @@ -599,7 +607,7 @@ class TestIpsec4TunIfEspAll(TemplateIpsec, IpsecTun4): class TestIpsec4TunIfEspNoAlgo(TemplateIpsec, IpsecTun4): - """ IPsec IPv4 Tunnel interface all Algos """ + """ IPsec IPv4 Tunnel interface no Algos """ encryption_type = ESP tun4_encrypt_node_name = "esp4-encrypt-tun" @@ -650,6 +658,7 @@ class TestIpsec4TunIfEspNoAlgo(TemplateIpsec, IpsecTun4): super(TestIpsec4TunIfEspNoAlgo, self).tearDown() def test_tun_44(self): + """ IPSec SA with NULL algos """ p = self.ipv4_params self.config_network(p) @@ -1059,6 +1068,127 @@ class TestIpsecGreTebIfEspTra(TemplateIpsec, super(TestIpsecGreTebIfEspTra, self).tearDown() +class TestIpsecGreTebUdpIfEspTra(TemplateIpsec, + IpsecTun4Tests): + """ Ipsec GRE TEB UDP ESP - Tra tests """ + tun4_encrypt_node_name = "esp4-encrypt-tun" + tun4_decrypt_node_name = "esp4-decrypt-tun" + encryption_type = ESP + omac = "00:11:22:33:44:55" + + 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.pg0.remote_ip4, + dst=self.pg0.local_ip4) / + GRE() / + Ether(dst=self.omac) / + IP(src="1.1.1.1", dst="1.1.1.2") / + 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(dst=self.omac) / + IP(src="1.1.1.1", dst="1.1.1.2") / + 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.omac) + self.assert_equal(rx[IP].dst, "1.1.1.2") + + def verify_encrypted(self, p, sa, rxs): + for rx in rxs: + self.assertTrue(rx.haslayer(UDP)) + self.assertEqual(rx[UDP].dport, 4545) + self.assertEqual(rx[UDP].sport, 5454) + 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[IP].dst, self.pg0.remote_ip4) + self.assert_equal(pkt[IP].src, self.pg0.local_ip4) + self.assertTrue(pkt.haslayer(GRE)) + e = pkt[Ether] + self.assertEqual(e[Ether].dst, self.omac) + self.assertEqual(e[IP].dst, "1.1.1.2") + 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(TestIpsecGreTebUdpIfEspTra, self).setUp() + + self.tun_if = self.pg0 + + p = self.ipv4_params + p = self.ipv4_params + p.flags = (VppEnum.vl_api_ipsec_sad_flags_t. + IPSEC_API_SAD_FLAG_UDP_ENCAP) + p.nat_header = UDP(sport=5454, dport=4545) + + bd1 = VppBridgeDomain(self, 1) + bd1.add_vpp_config() + + 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, + flags=p.flags, + udp_src=5454, + udp_dst=4545) + 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, + flags=(p.flags | + VppEnum.vl_api_ipsec_sad_flags_t. + IPSEC_API_SAD_FLAG_IS_INBOUND), + udp_src=5454, + udp_dst=4545) + p.tun_sa_in.add_vpp_config() + + p.tun_if = VppGreInterface(self, + self.pg0.local_ip4, + self.pg0.remote_ip4, + type=(VppEnum.vl_api_gre_tunnel_type_t. + GRE_API_TUNNEL_TYPE_TEB)) + p.tun_if.add_vpp_config() + + p.tun_protect = VppIpsecTunProtect(self, + p.tun_if, + p.tun_sa_out, + [p.tun_sa_in]) + + p.tun_protect.add_vpp_config() + + p.tun_if.admin_up() + p.tun_if.config_ip4() + config_tra_params(p, self.encryption_type, p.tun_if) + + VppBridgeDomainPort(self, bd1, p.tun_if).add_vpp_config() + VppBridgeDomainPort(self, bd1, self.pg1).add_vpp_config() + + self.vapi.cli("clear ipsec sa") + self.logger.info(self.vapi.cli("sh ipsec sa 0")) + + def tearDown(self): + p = self.ipv4_params + p.tun_if.unconfig_ip4() + super(TestIpsecGreTebUdpIfEspTra, self).tearDown() + + class TestIpsecGreIfEsp(TemplateIpsec, IpsecTun4Tests): """ Ipsec GRE ESP - TUN tests """ @@ -1445,7 +1575,7 @@ class TestIpsecMGreIfEspTra4(TemplateIpsec, IpsecTun4): # setup some SAs for several next-hops on the interface self.multi_params = [] - for ii in range(N_NHS): + for ii in range(1): p = copy.copy(self.ipv4_params) p.remote_tun_if_host = "1.1.1.%d" % (ii + 1) @@ -1798,7 +1928,7 @@ class TestIpsec4TunProtectUdp(TemplateIpsec, p = self.ipv4_params p.flags = (VppEnum.vl_api_ipsec_sad_flags_t. IPSEC_API_SAD_FLAG_UDP_ENCAP) - p.nat_header = UDP(sport=5454, dport=4500) + p.nat_header = UDP(sport=4500, dport=4500) self.config_network(p) self.config_sa_tra(p) self.config_protect(p) @@ -1810,6 +1940,13 @@ class TestIpsec4TunProtectUdp(TemplateIpsec, self.unconfig_network(p) super(TestIpsec4TunProtectUdp, self).tearDown() + def verify_encrypted(self, p, sa, rxs): + # ensure encrypted packets are recieved with the default UDP ports + for rx in rxs: + self.assertEqual(rx[UDP].sport, 4500) + self.assertEqual(rx[UDP].dport, 4500) + super(TestIpsec4TunProtectUdp, self).verify_encrypted(p, sa, rxs) + def test_tun_44(self): """IPSEC UDP tunnel protect""" @@ -1896,6 +2033,17 @@ class TestIpsec4TunProtectTun(TemplateIpsec, self.config_sa_tun(p) self.config_protect(p) + # also add an output features on the tunnel and physical interface + # so we test they still work + 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() + self.verify_tun_44(p, count=127) c = p.tun_if.get_rx_stats() @@ -2330,5 +2478,298 @@ class TestIpsec6TunProtectTunDrop(TemplateIpsec, self.unconfig_network(p) +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): + 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() + + 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_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) + + +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) + + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)