X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftemplate_ipsec.py;h=40e787eebb7556867b305c1d495d529d96d1285f;hb=1e3aa5e213c23588981ee17d1413a0441a40527a;hp=1b9a3796c15b7ed0a17a63c14cae489b5f377904;hpb=2ac885c665309fc670cec96675ec1f510116fc13;p=vpp.git diff --git a/test/template_ipsec.py b/test/template_ipsec.py index 1b9a3796c15..40e787eebb7 100644 --- a/test/template_ipsec.py +++ b/test/template_ipsec.py @@ -21,6 +21,7 @@ class IPsecIPv4Params(object): def __init__(self): self.remote_tun_if_host = '1.1.1.1' + self.remote_tun_if_host6 = '1111::1' self.scapy_tun_sa_id = 10 self.scapy_tun_spi = 1001 @@ -55,6 +56,7 @@ class IPsecIPv6Params(object): def __init__(self): self.remote_tun_if_host = '1111:1111:1111:1111:1111:1111:1111:1111' + self.remote_tun_if_host4 = '1.1.1.1' self.scapy_tun_sa_id = 50 self.scapy_tun_spi = 3001 @@ -81,6 +83,8 @@ class IPsecIPv6Params(object): def config_tun_params(p, encryption_type, tun_if): ip_class_by_addr_type = {socket.AF_INET: IP, socket.AF_INET6: IPv6} + use_esn = bool(p.flags & (VppEnum.vl_api_ipsec_sad_flags_t. + IPSEC_API_SAD_FLAG_USE_ESN)) p.scapy_tun_sa = SecurityAssociation( encryption_type, spi=p.vpp_tun_spi, crypt_algo=p.crypt_algo, crypt_key=p.crypt_key, @@ -88,7 +92,8 @@ def config_tun_params(p, encryption_type, tun_if): tunnel_header=ip_class_by_addr_type[p.addr_type]( src=tun_if.remote_addr[p.addr_type], dst=tun_if.local_addr[p.addr_type]), - nat_t_header=p.nat_header) + nat_t_header=p.nat_header, + use_esn=use_esn) p.vpp_tun_sa = SecurityAssociation( encryption_type, spi=p.scapy_tun_spi, crypt_algo=p.crypt_algo, crypt_key=p.crypt_key, @@ -96,10 +101,13 @@ def config_tun_params(p, encryption_type, tun_if): tunnel_header=ip_class_by_addr_type[p.addr_type]( dst=tun_if.remote_addr[p.addr_type], src=tun_if.local_addr[p.addr_type]), - nat_t_header=p.nat_header) + nat_t_header=p.nat_header, + use_esn=use_esn) def config_tra_params(p, encryption_type): + use_esn = p.flags & (VppEnum.vl_api_ipsec_sad_flags_t. + IPSEC_API_SAD_FLAG_USE_ESN) p.scapy_tra_sa = SecurityAssociation( encryption_type, spi=p.vpp_tra_spi, @@ -107,7 +115,8 @@ def config_tra_params(p, encryption_type): crypt_key=p.crypt_key, auth_algo=p.auth_algo, auth_key=p.auth_key, - nat_t_header=p.nat_header) + nat_t_header=p.nat_header, + use_esn=use_esn) p.vpp_tra_sa = SecurityAssociation( encryption_type, spi=p.scapy_tra_spi, @@ -115,7 +124,8 @@ def config_tra_params(p, encryption_type): crypt_key=p.crypt_key, auth_algo=p.auth_algo, auth_key=p.auth_key, - nat_t_header=p.nat_header) + nat_t_header=p.nat_header, + use_esn=use_esn) class TemplateIpsec(VppTestCase): @@ -141,14 +151,16 @@ class TemplateIpsec(VppTestCase): """ empty method to be overloaded when necessary """ pass - def setUp(self): - super(TemplateIpsec, self).setUp() - + def setup_params(self): self.ipv4_params = IPsecIPv4Params() self.ipv6_params = IPsecIPv6Params() self.params = {self.ipv4_params.addr_type: self.ipv4_params, self.ipv6_params.addr_type: self.ipv6_params} + def setUp(self): + super(TemplateIpsec, self).setUp() + + self.setup_params() self.payload = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"\ "XXXXXXXXXXXXXXXXXXXXX" @@ -203,24 +215,6 @@ class TemplateIpsec(VppTestCase): ICMPv6EchoRequest(id=0, seq=1, data=self.payload) for i in range(count)] - def configure_sa_tra(self, params): - params.scapy_tra_sa = SecurityAssociation( - self.encryption_type, - spi=params.vpp_tra_spi, - crypt_algo=params.crypt_algo, - crypt_key=params.crypt_key, - auth_algo=params.auth_algo, - auth_key=params.auth_key, - nat_t_header=params.nat_header) - params.vpp_tra_sa = SecurityAssociation( - self.encryption_type, - spi=params.scapy_tra_spi, - crypt_algo=params.crypt_algo, - crypt_key=params.crypt_key, - auth_algo=params.auth_algo, - auth_key=params.auth_key, - nat_t_header=params.nat_header) - class IpsecTcpTests(object): def test_tcp_checksum(self): @@ -243,6 +237,7 @@ class IpsecTra4Tests(object): def test_tra_anti_replay(self, count=1): """ ipsec v4 transport anti-reply test """ p = self.params[socket.AF_INET] + use_esn = p.vpp_tra_sa.use_esn # fire in a packet with seq number 1 pkt = (Ether(src=self.tra_if.remote_mac, @@ -262,6 +257,11 @@ class IpsecTra4Tests(object): seq_num=235)) recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if) + # replayed packets are dropped + self.send_and_assert_no_replies(self.tra_if, pkt * 3) + self.assert_packet_counter_equal( + '/err/%s/SA replayed packet' % self.tra4_decrypt_node_name, 3) + # the window size is 64 packets # in window are still accepted pkt = (Ether(src=self.tra_if.remote_mac, @@ -272,18 +272,6 @@ class IpsecTra4Tests(object): seq_num=172)) recv_pkts = self.send_and_expect(self.tra_if, [pkt], self.tra_if) - # out of window are dropped - pkt = (Ether(src=self.tra_if.remote_mac, - dst=self.tra_if.local_mac) / - p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4, - dst=self.tra_if.local_ip4) / - ICMP(), - seq_num=17)) - self.send_and_assert_no_replies(self.tra_if, pkt * 17) - - self.assert_packet_counter_equal( - '/err/%s/SA replayed packet' % self.tra4_decrypt_node_name, 17) - # a packet that does not decrypt does not move the window forward bogus_sa = SecurityAssociation(self.encryption_type, p.vpp_tra_spi) @@ -307,7 +295,74 @@ class IpsecTra4Tests(object): seq_num=234)) self.send_and_expect(self.tra_if, [pkt], self.tra_if) + # out of window are dropped + pkt = (Ether(src=self.tra_if.remote_mac, + dst=self.tra_if.local_mac) / + p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4, + dst=self.tra_if.local_ip4) / + ICMP(), + seq_num=17)) + self.send_and_assert_no_replies(self.tra_if, pkt * 17) + + if use_esn: + # an out of window error with ESN looks like a high sequence + # wrap. but since it isn't then the verify will fail. + self.assert_packet_counter_equal( + '/err/%s/Integrity check failed' % + self.tra4_decrypt_node_name, 34) + + else: + self.assert_packet_counter_equal( + '/err/%s/SA replayed packet' % + self.tra4_decrypt_node_name, 20) + + # valid packet moves the window over to 236 + pkt = (Ether(src=self.tra_if.remote_mac, + dst=self.tra_if.local_mac) / + p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4, + dst=self.tra_if.local_ip4) / + ICMP(), + seq_num=236)) + rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if) + decrypted = p.vpp_tra_sa.decrypt(rx[0][IP]) + + # move VPP's SA to just before the seq-number wrap + self.vapi.cli("test ipsec sa %d seq 0xffffffff" % p.scapy_tra_sa_id) + + # then fire in a packet that VPP should drop because it causes the + # seq number to wrap unless we're using extended. + pkt = (Ether(src=self.tra_if.remote_mac, + dst=self.tra_if.local_mac) / + p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4, + dst=self.tra_if.local_ip4) / + ICMP(), + seq_num=237)) + + if use_esn: + rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if) + # in order to decrpyt the high order number needs to wrap + p.vpp_tra_sa.seq_num = 0x100000000 + decrypted = p.vpp_tra_sa.decrypt(rx[0][IP]) + + # send packets with high bits set + p.scapy_tra_sa.seq_num = 0x100000005 + pkt = (Ether(src=self.tra_if.remote_mac, + dst=self.tra_if.local_mac) / + p.scapy_tra_sa.encrypt(IP(src=self.tra_if.remote_ip4, + dst=self.tra_if.local_ip4) / + ICMP(), + seq_num=0x100000005)) + rx = self.send_and_expect(self.tra_if, [pkt], self.tra_if) + # in order to decrpyt the high order number needs to wrap + decrypted = p.vpp_tra_sa.decrypt(rx[0][IP]) + else: + self.send_and_assert_no_replies(self.tra_if, [pkt]) + self.assert_packet_counter_equal( + '/err/%s/sequence number cycled' % + self.tra4_encrypt_node_name, 1) + # move the security-associations seq number on to the last we used + self.vapi.cli("test ipsec sa %d seq 0x15f" % p.scapy_tra_sa_id) p.scapy_tra_sa.seq_num = 351 p.vpp_tra_sa.seq_num = 351 @@ -395,6 +450,26 @@ class IpsecTra46Tests(IpsecTra4Tests, IpsecTra6Tests): class IpsecTun4(object): + def verify_counters(self, p, count): + if (hasattr(p, "spd_policy_in_any")): + pkts = p.spd_policy_in_any.get_stats()['packets'] + self.assertEqual(pkts, count, + "incorrect SPD any policy: expected %d != %d" % + (count, pkts)) + + if (hasattr(p, "tun_sa_in")): + pkts = p.tun_sa_in.get_stats()['packets'] + self.assertEqual(pkts, count, + "incorrect SA in counts: expected %d != %d" % + (count, pkts)) + pkts = p.tun_sa_out.get_stats()['packets'] + self.assertEqual(pkts, count, + "incorrect SA out counts: expected %d != %d" % + (count, pkts)) + + self.assert_packet_counter_equal(self.tun4_encrypt_node_name, count) + self.assert_packet_counter_equal(self.tun4_decrypt_node_name, count) + def verify_tun_44(self, p, count=1): self.vapi.cli("clear errors") try: @@ -431,24 +506,45 @@ class IpsecTun4(object): self.logger.info(self.vapi.ppcli("show error")) self.logger.info(self.vapi.ppcli("show ipsec")) - if (hasattr(p, "spd_policy_in_any")): - pkts = p.spd_policy_in_any.get_stats()['packets'] - self.assertEqual(pkts, count, - "incorrect SPD any policy: expected %d != %d" % - (count, pkts)) + self.verify_counters(p, count) - if (hasattr(p, "tun_sa_in")): - pkts = p.tun_sa_in.get_stats()['packets'] - self.assertEqual(pkts, count, - "incorrect SA in counts: expected %d != %d" % - (count, pkts)) - pkts = p.tun_sa_out.get_stats()['packets'] - self.assertEqual(pkts, count, - "incorrect SA out counts: expected %d != %d" % - (count, pkts)) + def verify_tun_64(self, p, count=1): + self.vapi.cli("clear errors") + try: + config_tun_params(p, self.encryption_type, self.tun_if) + send_pkts = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if, + src=p.remote_tun_if_host6, + dst=self.pg1.remote_ip6, + count=count) + recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1) + for recv_pkt in recv_pkts: + self.assert_equal(recv_pkt[IPv6].src, p.remote_tun_if_host6) + self.assert_equal(recv_pkt[IPv6].dst, self.pg1.remote_ip6) + self.assert_packet_checksums_valid(recv_pkt) + send_pkts = self.gen_pkts6(self.pg1, src=self.pg1.remote_ip6, + dst=p.remote_tun_if_host6, count=count) + recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if) + for recv_pkt in recv_pkts: + try: + decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IP]) + if not decrypt_pkt.haslayer(IPv6): + decrypt_pkt = IPv6(decrypt_pkt[Raw].load) + self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip6) + self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host6) + self.assert_packet_checksums_valid(decrypt_pkt) + except: + self.logger.error(ppp("Unexpected packet:", recv_pkt)) + try: + self.logger.debug( + ppp("Decrypted packet:", decrypt_pkt)) + except: + pass + raise + finally: + self.logger.info(self.vapi.ppcli("show error")) + self.logger.info(self.vapi.ppcli("show ipsec")) - self.assert_packet_counter_equal(self.tun4_encrypt_node_name, count) - self.assert_packet_counter_equal(self.tun4_decrypt_node_name, count) + self.verify_counters(p, count) class IpsecTun4Tests(IpsecTun4): @@ -464,6 +560,19 @@ class IpsecTun4Tests(IpsecTun4): class IpsecTun6(object): + def verify_counters(self, p, count): + if (hasattr(p, "tun_sa_in")): + pkts = p.tun_sa_in.get_stats()['packets'] + self.assertEqual(pkts, count, + "incorrect SA in counts: expected %d != %d" % + (count, pkts)) + pkts = p.tun_sa_out.get_stats()['packets'] + self.assertEqual(pkts, count, + "incorrect SA out counts: expected %d != %d" % + (count, pkts)) + self.assert_packet_counter_equal(self.tun6_encrypt_node_name, count) + self.assert_packet_counter_equal(self.tun6_decrypt_node_name, count) + def verify_tun_66(self, p, count=1): """ ipsec 6o6 tunnel basic test """ self.vapi.cli("clear errors") @@ -501,18 +610,46 @@ class IpsecTun6(object): finally: self.logger.info(self.vapi.ppcli("show error")) self.logger.info(self.vapi.ppcli("show ipsec")) + self.verify_counters(p, count) - if (hasattr(p, "tun_sa_in")): - pkts = p.tun_sa_in.get_stats()['packets'] - self.assertEqual(pkts, count, - "incorrect SA in counts: expected %d != %d" % - (count, pkts)) - pkts = p.tun_sa_out.get_stats()['packets'] - self.assertEqual(pkts, count, - "incorrect SA out counts: expected %d != %d" % - (count, pkts)) - self.assert_packet_counter_equal(self.tun6_encrypt_node_name, count) - self.assert_packet_counter_equal(self.tun6_decrypt_node_name, count) + def verify_tun_46(self, p, count=1): + """ ipsec 4o6 tunnel basic test """ + self.vapi.cli("clear errors") + try: + config_tun_params(p, self.encryption_type, self.tun_if) + send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if, + src=p.remote_tun_if_host4, + dst=self.pg1.remote_ip4, + count=count) + recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1) + for recv_pkt in recv_pkts: + self.assert_equal(recv_pkt[IP].src, p.remote_tun_if_host4) + self.assert_equal(recv_pkt[IP].dst, self.pg1.remote_ip4) + self.assert_packet_checksums_valid(recv_pkt) + send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4, + dst=p.remote_tun_if_host4, + count=count) + recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if) + for recv_pkt in recv_pkts: + try: + decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IPv6]) + if not decrypt_pkt.haslayer(IP): + decrypt_pkt = IP(decrypt_pkt[Raw].load) + self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4) + self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host4) + self.assert_packet_checksums_valid(decrypt_pkt) + except: + self.logger.debug(ppp("Unexpected packet:", recv_pkt)) + try: + self.logger.debug(ppp("Decrypted packet:", + decrypt_pkt)) + except: + pass + raise + finally: + self.logger.info(self.vapi.ppcli("show error")) + self.logger.info(self.vapi.ppcli("show ipsec")) + self.verify_counters(p, count) class IpsecTun6Tests(IpsecTun6):