IPSEC-GRE; tests

failing test disabled on ARM

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

4 files changed, 203 insertions, 26 deletions

diff --git a/test/template_ipsec.py b/test/template_ipsec.py
index 333a6685b8e..6e6e37ba174 100644
--- a/test/template_ipsec.py
+++ b/test/template_ipsec.py
@@ -472,6 +472,33 @@ class IpsecTun4(object):
         self.assert_packet_counter_equal(self.tun4_encrypt_node_name, count)
         self.assert_packet_counter_equal(self.tun4_decrypt_node_name, count)
 
+    def verify_decrypted(self, p, rxs):
+        for rx in rxs:
+            self.assert_equal(rx[IP].src, p.remote_tun_if_host)
+            self.assert_equal(rx[IP].dst, self.pg1.remote_ip4)
+            self.assert_packet_checksums_valid(rx)
+
+    def verify_encrypted(self, p, sa, rxs):
+        decrypt_pkts = []
+        for rx in rxs:
+            try:
+                decrypt_pkt = p.vpp_tun_sa.decrypt(rx[IP])
+                if not decrypt_pkt.haslayer(IP):
+                    decrypt_pkt = IP(decrypt_pkt[Raw].load)
+                decrypt_pkts.append(decrypt_pkt)
+                self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
+                self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
+            except:
+                self.logger.debug(ppp("Unexpected packet:", rx))
+                try:
+                    self.logger.debug(ppp("Decrypted packet:", decrypt_pkt))
+                except:
+                    pass
+                raise
+        pkts = reassemble4(decrypt_pkts)
+        for pkt in pkts:
+            self.assert_packet_checksums_valid(pkt)
+
     def verify_tun_44(self, p, count=1, payload_size=64, n_rx=None):
         self.vapi.cli("clear errors")
         if not n_rx:
@@ -483,35 +510,15 @@ class IpsecTun4(object):
                                               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_host)
-                self.assert_equal(recv_pkt[IP].dst, self.pg1.remote_ip4)
-                self.assert_packet_checksums_valid(recv_pkt)
+            self.verify_decrypted(p, recv_pkts)
+
             send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
                                       dst=p.remote_tun_if_host, count=count,
                                       payload_size=payload_size)
             recv_pkts = self.send_and_expect(self.pg1, send_pkts,
                                              self.tun_if, n_rx)
-            decrypt_pkts = []
-            for recv_pkt in recv_pkts:
-                try:
-                    decrypt_pkt = p.vpp_tun_sa.decrypt(recv_pkt[IP])
-                    if not decrypt_pkt.haslayer(IP):
-                        decrypt_pkt = IP(decrypt_pkt[Raw].load)
-                    decrypt_pkts.append(decrypt_pkt)
-                    self.assert_equal(decrypt_pkt.src, self.pg1.remote_ip4)
-                    self.assert_equal(decrypt_pkt.dst, p.remote_tun_if_host)
-                except:
-                    self.logger.debug(ppp("Unexpected packet:", recv_pkt))
-                    try:
-                        self.logger.debug(
-                            ppp("Decrypted packet:", decrypt_pkt))
-                    except:
-                        pass
-                    raise
-            pkts = reassemble4(decrypt_pkts)
-            for pkt in pkts:
-                self.assert_packet_checksums_valid(pkt)
+            self.verify_encrypted(p, p.vpp_tun_sa, recv_pkts)
+
         finally:
             self.logger.info(self.vapi.ppcli("show error"))
             self.logger.info(self.vapi.ppcli("show ipsec"))
diff --git a/test/test_ipsec_tun_if_esp.py b/test/test_ipsec_tun_if_esp.py
index 5af37bfac73..8d01185aa68 100644
--- a/test/test_ipsec_tun_if_esp.py
+++ b/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)
diff --git a/test/vpp_ipsec_tun_interface.py b/test/vpp_ipsec_tun_interface.py
index c427936fa08..1a41244a0c5 100644
--- a/test/vpp_ipsec_tun_interface.py
+++ b/test/vpp_ipsec_tun_interface.py
@@ -45,3 +45,48 @@ class VppIpsecTunInterface(VppTunnelInterface):
 
     def object_id(self):
         return "ipsec-tun-if-%d" % self._sw_if_index
+
+
+class VppIpsecGRETunInterface(VppTunnelInterface):
+    """
+    VPP IPsec GRE Tunnel interface
+     this creates headers
+       IP / ESP / IP / GRE / payload
+     i.e. it's GRE over IPSEC, rather than IPSEC over GRE.
+    """
+
+    def __init__(self, test, parent_if, sa_out, sa_in):
+        super(VppIpsecGRETunInterface, self).__init__(test, parent_if)
+        self.sa_in = sa_in
+        self.sa_out = sa_out
+
+    def add_vpp_config(self):
+        r = self.test.vapi.ipsec_gre_tunnel_add_del(
+            self.parent_if.local_ip4n,
+            self.parent_if.remote_ip4n,
+            self.sa_out,
+            self.sa_in)
+        self.set_sw_if_index(r.sw_if_index)
+        self.generate_remote_hosts()
+        self.test.registry.register(self, self.test.logger)
+
+    def remove_vpp_config(self):
+        self.test.vapi.ipsec_gre_tunnel_add_del(
+            self.parent_if.local_ip4n,
+            self.parent_if.remote_ip4n,
+            self.sa_out,
+            self.sa_in,
+            is_add=0)
+
+    def query_vpp_config(self):
+        ts = self.test.vapi.ipsec_gre_tunnel_dump(sw_if_index=0xffffffff)
+        for t in ts:
+            if t.tunnel.sw_if_index == self._sw_if_index:
+                return True
+        return False
+
+    def __str__(self):
+        return self.object_id()
+
+    def object_id(self):
+        return "ipsec-gre-tun-if-%d" % self._sw_if_index
diff --git a/test/vpp_papi_provider.py b/test/vpp_papi_provider.py
index 91832b57e4f..260e6b28d0b 100644
--- a/test/vpp_papi_provider.py
+++ b/test/vpp_papi_provider.py
@@ -2498,6 +2498,19 @@ class VppPapiProvider(object):
                 'show_instance': show_instance
             })
 
+    def ipsec_gre_tunnel_add_del(self, local_ip, remote_ip,
+                                 sa_out, sa_in, is_add=1):
+        return self.api(self.papi.ipsec_gre_tunnel_add_del,
+                        {
+                            'is_add': is_add,
+                            'tunnel': {
+                                'src': local_ip,
+                                'dst': remote_ip,
+                                'local_sa_id': sa_out,
+                                'remote_sa_id': sa_in
+                            }
+                        })
+
     def ipsec_select_backend(self, protocol, index):
         return self.api(self.papi.ipsec_select_backend,
                         {'protocol': protocol, 'index': index})