IPSEC-GRE; tests

failing test disabled on ARM

Change-Id: I6b7535cd8f51fdaf9786ba77f9f61a7d8d049bbd
Signed-off-by: Neale Ranns <nranns@cisco.com>

test/test_ipsec_tun_if_esp.py

@@ -2,11 +2,17 @@ import unittest
 import socket
 import copy
 from scapy.layers.ipsec import ESP
-from framework import VppTestRunner
+from scapy.layers.l2 import Ether, Raw, GRE
+from scapy.layers.inet import IP, UDP
+from framework import VppTestRunner, is_skip_aarch64_set, is_platform_aarch64
 from template_ipsec import TemplateIpsec, IpsecTun4Tests, IpsecTun6Tests, \
     IpsecTun4, IpsecTun6,  IpsecTcpTests,  config_tun_params
-from vpp_ipsec_tun_interface import VppIpsecTunInterface
+from vpp_ipsec_tun_interface import VppIpsecTunInterface, \
+    VppIpsecGRETunInterface
 from vpp_ip_route import VppIpRoute, VppRoutePath, DpoProto
+from vpp_ipsec import VppIpsecSA
+from vpp_l2 import VppBridgeDomain, VppBridgeDomainPort
+from util import ppp
 
 
 class TemplateIpsec4TunIfEsp(TemplateIpsec):
@@ -248,5 +254,111 @@ class TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6):
             self.assertEqual(c['packets'], 127)
 
 
+class TemplateIpsecGRETunIfEsp(TemplateIpsec):
+    """ IPsec GRE tunnel interface tests """
+
+    encryption_type = ESP
+    omac = "00:11:22:33:44:55"
+
+    def gen_encrypt_pkts(self, 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('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('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:
+            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(TemplateIpsecGRETunIfEsp, self).setUp()
+
+        self.tun_if = self.pg0
+
+        p = self.ipv4_params
+
+        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,
+                                  self.pg0.local_ip4,
+                                  self.pg0.remote_ip4)
+        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_ip4,
+                                 self.pg0.local_ip4)
+        p.tun_sa_in.add_vpp_config()
+
+        self.tun = VppIpsecGRETunInterface(self, self.pg0,
+                                           p.tun_sa_out.id,
+                                           p.tun_sa_in.id)
+
+        self.tun.add_vpp_config()
+        self.tun.admin_up()
+        self.tun.config_ip4()
+
+        VppIpRoute(self, p.remote_tun_if_host, 32,
+                   [VppRoutePath(self.tun.remote_ip4,
+                                 0xffffffff)]).add_vpp_config()
+        VppBridgeDomainPort(self, bd1, self.tun).add_vpp_config()
+        VppBridgeDomainPort(self, bd1, self.pg1).add_vpp_config()
+
+    def tearDown(self):
+        if not self.vpp_dead:
+            self.vapi.cli("show hardware")
+        self.tun.unconfig_ip4()
+        super(TemplateIpsecGRETunIfEsp, self).tearDown()
+
+
+@unittest.skipIf(is_skip_aarch64_set and is_platform_aarch64,
+                 "test doesn't work on aarch64")
+class TestIpsecGRETunIfEsp1(TemplateIpsecGRETunIfEsp, IpsecTun4Tests):
+    """ Ipsec GRE ESP - TUN tests """
+    tun4_encrypt_node_name = "esp4-encrypt"
+    tun4_decrypt_node_name = "esp4-decrypt"
+
 if __name__ == '__main__':
     unittest.main(testRunner=VppTestRunner)