gso: add ipsec tunnel tests
Type: test
Change-Id: I831bc8c21f8ce869054eafcb14542508039c1b82
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
diff --git a/test/test_gso.py b/test/test_gso.py
index 094600e..695ec5e 100644
--- a/test/test_gso.py
+++ b/test/test_gso.py
@@ -16,7 +16,9 @@
from scapy.layers.inet import TCP, ICMP
from scapy.layers.vxlan import VXLAN
from scapy.data import ETH_P_IP, ETH_P_IPV6, ETH_P_ARP
+from scapy.layers.ipsec import SecurityAssociation, ESP
+from vpp_papi import VppEnum
from framework import VppTestCase, VppTestRunner
from vpp_object import VppObject
from vpp_interface import VppInterface
@@ -27,6 +29,9 @@
from socket import AF_INET, AF_INET6, inet_pton
from util import reassemble4
+from vpp_ipsec import VppIpsecSA, VppIpsecTunProtect
+from template_ipsec import IPsecIPv4Params, IPsecIPv6Params, \
+ mk_scapy_crypt_key, config_tun_params
""" Test_gso is a subclass of VPPTestCase classes.
GSO tests.
@@ -718,5 +723,247 @@
self.vapi.feature_gso_enable_disable(sw_if_index=self.pg0.sw_if_index,
enable_disable=0)
+ def test_gso_ipsec(self):
+ """ GSO IPSEC test """
+ #
+ # Send jumbo frame with gso enabled only on input interface and
+ # create IPIP tunnel on VPP pg0.
+ #
+
+ #
+ # enable ipip4
+ #
+ self.ipip4.add_vpp_config()
+ self.vapi.feature_gso_enable_disable(
+ sw_if_index=self.ipip4.sw_if_index, enable_disable=1)
+
+ # Add IPv4 routes via tunnel interface
+ self.ip4_via_ip4_tunnel = VppIpRoute(
+ self, "172.16.10.0", 24,
+ [VppRoutePath("0.0.0.0",
+ self.ipip4.sw_if_index,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)])
+ self.ip4_via_ip4_tunnel.add_vpp_config()
+
+ # IPSec config
+ self.ipv4_params = IPsecIPv4Params()
+ self.encryption_type = ESP
+ config_tun_params(self.ipv4_params, self.encryption_type, self.ipip4)
+
+ self.tun_sa_in_v4 = VppIpsecSA(self, self.ipv4_params.vpp_tun_sa_id,
+ self.ipv4_params.vpp_tun_spi,
+ self.ipv4_params.auth_algo_vpp_id,
+ self.ipv4_params.auth_key,
+ self.ipv4_params.crypt_algo_vpp_id,
+ self.ipv4_params.crypt_key,
+ VppEnum.vl_api_ipsec_proto_t.
+ IPSEC_API_PROTO_ESP)
+ self.tun_sa_in_v4.add_vpp_config()
+
+ self.tun_sa_out_v4 = VppIpsecSA(self, self.ipv4_params.scapy_tun_sa_id,
+ self.ipv4_params.scapy_tun_spi,
+ self.ipv4_params.auth_algo_vpp_id,
+ self.ipv4_params.auth_key,
+ self.ipv4_params.crypt_algo_vpp_id,
+ self.ipv4_params.crypt_key,
+ VppEnum.vl_api_ipsec_proto_t.
+ IPSEC_API_PROTO_ESP)
+ self.tun_sa_out_v4.add_vpp_config()
+
+ self.tun_protect_v4 = VppIpsecTunProtect(self,
+ self.ipip4,
+ self.tun_sa_out_v4,
+ [self.tun_sa_in_v4])
+
+ self.tun_protect_v4.add_vpp_config()
+
+ # Set interface up and enable IP on it
+ self.ipip4.admin_up()
+ self.ipip4.set_unnumbered(self.pg0.sw_if_index)
+
+ #
+ # IPv4/IPv4 - IPSEC
+ #
+ ipsec44 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [ipsec44], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IP].src, self.pg0.local_ip4)
+ self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rx[IP].proto, 50) # ESP
+ self.assertEqual(rx[ESP].spi, self.ipv4_params.scapy_tun_spi)
+ inner = self.ipv4_params.vpp_tun_sa.decrypt(rx[IP])
+ self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
+ self.assertEqual(inner[IP].dst, "172.16.10.3")
+ size += inner[IP].len - 20 - 20
+ self.assertEqual(size, 65200)
+
+ self.ip6_via_ip4_tunnel = VppIpRoute(
+ self, "fd01:10::", 64,
+ [VppRoutePath("::",
+ self.ipip4.sw_if_index,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)])
+ self.ip6_via_ip4_tunnel.add_vpp_config()
+ #
+ # IPv4/IPv6 - IPSEC
+ #
+ ipsec46 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [ipsec46], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IP].src, self.pg0.local_ip4)
+ self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rx[IP].proto, 50) # ESP
+ self.assertEqual(rx[ESP].spi, self.ipv4_params.scapy_tun_spi)
+ inner = self.ipv4_params.vpp_tun_sa.decrypt(rx[IP])
+ self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
+ self.assertEqual(inner[IPv6].dst, "fd01:10::3")
+ size += inner[IPv6].plen - 20
+ self.assertEqual(size, 65200)
+
+ # disable IPSec
+ self.tun_protect_v4.remove_vpp_config()
+ self.tun_sa_in_v4.remove_vpp_config()
+ self.tun_sa_out_v4.remove_vpp_config()
+
+ #
+ # disable ipip4
+ #
+ self.vapi.feature_gso_enable_disable(self.ipip4.sw_if_index,
+ enable_disable=0)
+ self.ip4_via_ip4_tunnel.remove_vpp_config()
+ self.ip6_via_ip4_tunnel.remove_vpp_config()
+ self.ipip4.remove_vpp_config()
+
+ #
+ # enable ipip6
+ #
+ self.ipip6.add_vpp_config()
+ self.vapi.feature_gso_enable_disable(self.ipip6.sw_if_index,
+ enable_disable=1)
+
+ # Set interface up and enable IP on it
+ self.ipip6.admin_up()
+ self.ipip6.set_unnumbered(self.pg0.sw_if_index)
+
+ # Add IPv4 routes via tunnel interface
+ self.ip4_via_ip6_tunnel = VppIpRoute(
+ self, "172.16.10.0", 24,
+ [VppRoutePath("0.0.0.0",
+ self.ipip6.sw_if_index,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)])
+ self.ip4_via_ip6_tunnel.add_vpp_config()
+
+ # IPSec config
+ self.ipv6_params = IPsecIPv6Params()
+ self.encryption_type = ESP
+ config_tun_params(self.ipv6_params, self.encryption_type, self.ipip6)
+ self.tun_sa_in_v6 = VppIpsecSA(self, self.ipv6_params.vpp_tun_sa_id,
+ self.ipv6_params.vpp_tun_spi,
+ self.ipv6_params.auth_algo_vpp_id,
+ self.ipv6_params.auth_key,
+ self.ipv6_params.crypt_algo_vpp_id,
+ self.ipv6_params.crypt_key,
+ VppEnum.vl_api_ipsec_proto_t.
+ IPSEC_API_PROTO_ESP)
+ self.tun_sa_in_v6.add_vpp_config()
+
+ self.tun_sa_out_v6 = VppIpsecSA(self, self.ipv6_params.scapy_tun_sa_id,
+ self.ipv6_params.scapy_tun_spi,
+ self.ipv6_params.auth_algo_vpp_id,
+ self.ipv6_params.auth_key,
+ self.ipv6_params.crypt_algo_vpp_id,
+ self.ipv6_params.crypt_key,
+ VppEnum.vl_api_ipsec_proto_t.
+ IPSEC_API_PROTO_ESP)
+ self.tun_sa_out_v6.add_vpp_config()
+
+ self.tun_protect_v6 = VppIpsecTunProtect(self,
+ self.ipip6,
+ self.tun_sa_out_v6,
+ [self.tun_sa_in_v6])
+
+ self.tun_protect_v6.add_vpp_config()
+
+ #
+ # IPv6/IPv4 - IPSEC
+ #
+ ipsec64 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [ipsec64], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
+ self.assertEqual(ipv6nh[rx[IPv6].nh], "ESP Header")
+ self.assertEqual(rx[ESP].spi, self.ipv6_params.scapy_tun_spi)
+ inner = self.ipv6_params.vpp_tun_sa.decrypt(rx[IPv6])
+ self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
+ self.assertEqual(inner[IP].dst, "172.16.10.3")
+ size += inner[IP].len - 20 - 20
+ self.assertEqual(size, 65200)
+
+ self.ip6_via_ip6_tunnel = VppIpRoute(
+ self, "fd01:10::", 64,
+ [VppRoutePath("::",
+ self.ipip6.sw_if_index,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)])
+ self.ip6_via_ip6_tunnel.add_vpp_config()
+
+ #
+ # IPv6/IPv6 - IPSEC
+ #
+ ipsec66 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [ipsec66], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
+ self.assertEqual(ipv6nh[rx[IPv6].nh], "ESP Header")
+ self.assertEqual(rx[ESP].spi, self.ipv6_params.scapy_tun_spi)
+ inner = self.ipv6_params.vpp_tun_sa.decrypt(rx[IPv6])
+ self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
+ self.assertEqual(inner[IPv6].dst, "fd01:10::3")
+ size += inner[IPv6].plen - 20
+ self.assertEqual(size, 65200)
+
+ # disable IPSec
+ self.tun_protect_v6.remove_vpp_config()
+ self.tun_sa_in_v6.remove_vpp_config()
+ self.tun_sa_out_v6.remove_vpp_config()
+
+ #
+ # disable ipip6
+ #
+ self.ip4_via_ip6_tunnel.remove_vpp_config()
+ self.ip6_via_ip6_tunnel.remove_vpp_config()
+ self.ipip6.remove_vpp_config()
+
+ self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
+ enable_disable=0)
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)