diff options
Diffstat (limited to 'test/template_ipsec.py')
| -rw-r--r-- | test/template_ipsec.py | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/test/template_ipsec.py b/test/template_ipsec.py new file mode 100644 index 00000000000..9d95185cb9e --- /dev/null +++ b/test/template_ipsec.py @@ -0,0 +1,208 @@ +import unittest + +from scapy.layers.inet import IP, ICMP, TCP +from scapy.layers.ipsec import SecurityAssociation +from scapy.layers.l2 import Ether, Raw + +from framework import VppTestCase, VppTestRunner +from util import ppp + + +class TemplateIpsec(VppTestCase): + """ + TRANSPORT MODE: + + ------ encrypt --- + |tra_if| <-------> |VPP| + ------ decrypt --- + + TUNNEL MODE: + + ------ encrypt --- plain --- + |tun_if| <------- |VPP| <------ |pg1| + ------ --- --- + + ------ decrypt --- plain --- + |tun_if| -------> |VPP| ------> |pg1| + ------ --- --- + """ + + remote_tun_if_host = '1.1.1.1' + payload = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" + + tun_spd_id = 1 + scapy_tun_sa_id = 10 + scapy_tun_spi = 1001 + vpp_tun_sa_id = 20 + vpp_tun_spi = 1000 + + tra_spd_id = 2 + scapy_tra_sa_id = 30 + scapy_tra_spi = 2001 + vpp_tra_sa_id = 40 + vpp_tra_spi = 2000 + + vpp_esp_protocol = 1 + vpp_ah_protocol = 0 + + auth_algo_vpp_id = 2 # internal VPP enum value for SHA1_96 + auth_algo = 'HMAC-SHA1-96' # scapy name + auth_key = 'C91KUR9GYMm5GfkEvNjX' + + crypt_algo_vpp_id = 1 # internal VPP enum value for AES_CBC_128 + crypt_algo = 'AES-CBC' # scapy name + crypt_key = 'JPjyOWBeVEQiMe7h' + + @classmethod + def setUpClass(cls): + super(TemplateIpsec, cls).setUpClass() + cls.create_pg_interfaces(range(3)) + cls.interfaces = list(cls.pg_interfaces) + for i in cls.interfaces: + i.admin_up() + i.config_ip4() + i.resolve_arp() + + def tearDown(self): + super(TemplateIpsec, self).tearDown() + if not self.vpp_dead: + self.vapi.cli("show hardware") + + def send_and_expect(self, input, pkts, output, count=1): + input.add_stream(pkts) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + rx = output.get_capture(count) + return rx + + def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1): + return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) / + sa.encrypt(IP(src=src, dst=dst) / ICMP() / self.payload) + for i in range(count)] + + def gen_pkts(self, sw_intf, src, dst, count=1): + return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) / + IP(src=src, dst=dst) / ICMP() / self.payload + for i in range(count)] + + def configure_sa_tun(self): + scapy_tun_sa = SecurityAssociation(self.encryption_type, + spi=self.vpp_tun_spi, + crypt_algo=self.crypt_algo, + crypt_key=self.crypt_key, + auth_algo=self.auth_algo, + auth_key=self.auth_key, + tunnel_header=IP( + src=self.tun_if.remote_ip4, + dst=self.tun_if.local_ip4)) + vpp_tun_sa = SecurityAssociation(self.encryption_type, + spi=self.scapy_tun_spi, + crypt_algo=self.crypt_algo, + crypt_key=self.crypt_key, + auth_algo=self.auth_algo, + auth_key=self.auth_key, + tunnel_header=IP( + dst=self.tun_if.remote_ip4, + src=self.tun_if.local_ip4)) + return vpp_tun_sa, scapy_tun_sa + + def configure_sa_tra(self): + scapy_tra_sa = SecurityAssociation(self.encryption_type, + spi=self.vpp_tra_spi, + crypt_algo=self.crypt_algo, + crypt_key=self.crypt_key, + auth_algo=self.auth_algo, + auth_key=self.auth_key) + vpp_tra_sa = SecurityAssociation(self.encryption_type, + spi=self.scapy_tra_spi, + crypt_algo=self.crypt_algo, + crypt_key=self.crypt_key, + auth_algo=self.auth_algo, + auth_key=self.auth_key) + return vpp_tra_sa, scapy_tra_sa + + +class IpsecTcpTests(object): + def test_tcp_checksum(self): + """ verify checksum correctness for vpp generated packets """ + self.vapi.cli("test http server") + vpp_tun_sa, scapy_tun_sa = self.configure_sa_tun() + send = (Ether(src=self.tun_if.remote_mac, dst=self.tun_if.local_mac) / + scapy_tun_sa.encrypt(IP(src=self.remote_tun_if_host, + dst=self.tun_if.local_ip4) / + TCP(flags='S', dport=80))) + self.logger.debug(ppp("Sending packet:", send)) + recv = self.send_and_expect(self.tun_if, [send], self.tun_if, 1) + recv = recv[0] + decrypted = vpp_tun_sa.decrypt(recv[IP]) + self.assert_packet_checksums_valid(decrypted) + + +class IpsecTraTests(object): + def test_tra_basic(self, count=1): + """ ipsec v4 transport basic test """ + try: + vpp_tra_sa, scapy_tra_sa = self.configure_sa_tra() + send_pkts = self.gen_encrypt_pkts(scapy_tra_sa, self.tra_if, + src=self.tra_if.remote_ip4, + dst=self.tra_if.local_ip4, + count=count) + recv_pkts = self.send_and_expect(self.tra_if, send_pkts, + self.tra_if, count=count) + for p in recv_pkts: + decrypted = vpp_tra_sa.decrypt(p[IP]) + self.assert_packet_checksums_valid(decrypted) + finally: + self.logger.info(self.vapi.ppcli("show error")) + self.logger.info(self.vapi.ppcli("show ipsec")) + + def test_tra_burst(self): + """ ipsec v4 transport burst test """ + try: + self.test_tra_basic(count=257) + finally: + self.logger.info(self.vapi.ppcli("show error")) + self.logger.info(self.vapi.ppcli("show ipsec")) + + +class IpsecTunTests(object): + def test_tun_basic(self, count=1): + """ ipsec 4o4 tunnel basic test """ + try: + vpp_tun_sa, scapy_tun_sa = self.configure_sa_tun() + send_pkts = self.gen_encrypt_pkts(scapy_tun_sa, self.tun_if, + src=self.remote_tun_if_host, + dst=self.pg1.remote_ip4, + count=count) + recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1, + count=count) + for recv_pkt in recv_pkts: + self.assert_equal(recv_pkt[IP].src, self.remote_tun_if_host) + 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=self.remote_tun_if_host, count=count) + recv_pkts = self.send_and_expect(self.pg1, send_pkts, self.tun_if, + count=count) + for recv_pkt in recv_pkts: + decrypt_pkt = vpp_tun_sa.decrypt(recv_pkt[IP]) + 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, self.remote_tun_if_host) + self.assert_packet_checksums_valid(decrypt_pkt) + finally: + self.logger.info(self.vapi.ppcli("show error")) + self.logger.info(self.vapi.ppcli("show ipsec")) + + def test_tun_burst(self): + """ ipsec 4o4 tunnel burst test """ + try: + self.test_tun_basic(count=257) + finally: + self.logger.info(self.vapi.ppcli("show error")) + self.logger.info(self.vapi.ppcli("show ipsec")) + + +if __name__ == '__main__': + unittest.main(testRunner=VppTestRunner) |