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-rw-r--r--test/test_gre.py149
-rw-r--r--test/vpp_gre_interface.py35
2 files changed, 177 insertions, 7 deletions
diff --git a/test/test_gre.py b/test/test_gre.py
index f2a5e0b0222..18b67dbd187 100644
--- a/test/test_gre.py
+++ b/test/test_gre.py
@@ -5,7 +5,7 @@ from logging import *
from framework import VppTestCase, VppTestRunner
from vpp_sub_interface import VppDot1QSubint
-from vpp_gre_interface import VppGreInterface
+from vpp_gre_interface import VppGreInterface, VppGre6Interface
from vpp_ip_route import VppIpRoute, VppRoutePath
from vpp_papi_provider import L2_VTR_OP
@@ -28,14 +28,19 @@ class TestGRE(VppTestCase):
def setUp(self):
super(TestGRE, self).setUp()
- # create 2 pg interfaces - set one in a non-default table.
- self.create_pg_interfaces(range(2))
-
+ # create 3 pg interfaces - set one in a non-default table.
+ self.create_pg_interfaces(range(3))
self.pg1.set_table_ip4(1)
+
for i in self.pg_interfaces:
i.admin_up()
- i.config_ip4()
- i.resolve_arp()
+
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg1.config_ip4()
+ self.pg1.resolve_arp()
+ self.pg2.config_ip6()
+ self.pg2.resolve_ndp()
def tearDown(self):
super(TestGRE, self).tearDown()
@@ -57,6 +62,19 @@ class TestGRE(VppTestCase):
pkts.append(p)
return pkts
+ def create_stream_ip6(self, src_if, src_ip, dst_ip):
+ pkts = []
+ for i in range(0, 257):
+ info = self.create_packet_info(src_if, src_if)
+ payload = self.info_to_payload(info)
+ p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+ IPv6(src=src_ip, dst=dst_ip) /
+ UDP(sport=1234, dport=1234) /
+ Raw(payload))
+ info.data = p.copy()
+ pkts.append(p)
+ return pkts
+
def create_tunnel_stream_4o4(self, src_if,
tunnel_src, tunnel_dst,
src_ip, dst_ip):
@@ -91,6 +109,23 @@ class TestGRE(VppTestCase):
pkts.append(p)
return pkts
+ def create_tunnel_stream_6o6(self, src_if,
+ tunnel_src, tunnel_dst,
+ src_ip, dst_ip):
+ pkts = []
+ for i in range(0, 257):
+ info = self.create_packet_info(src_if, src_if)
+ payload = self.info_to_payload(info)
+ p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+ IPv6(src=tunnel_src, dst=tunnel_dst) /
+ GRE() /
+ IPv6(src=src_ip, dst=dst_ip) /
+ UDP(sport=1234, dport=1234) /
+ Raw(payload))
+ info.data = p.copy()
+ pkts.append(p)
+ return pkts
+
def create_tunnel_stream_l2o4(self, src_if,
tunnel_src, tunnel_dst):
pkts = []
@@ -157,6 +192,33 @@ class TestGRE(VppTestCase):
self.logger.error(ppp("Tx:", tx))
raise
+ def verify_tunneled_6o6(self, src_if, capture, sent,
+ tunnel_src, tunnel_dst):
+
+ self.assertEqual(len(capture), len(sent))
+
+ for i in range(len(capture)):
+ try:
+ tx = sent[i]
+ rx = capture[i]
+
+ tx_ip = tx[IPv6]
+ rx_ip = rx[IPv6]
+
+ self.assertEqual(rx_ip.src, tunnel_src)
+ self.assertEqual(rx_ip.dst, tunnel_dst)
+
+ rx_gre = GRE(str(rx_ip[IPv6].payload))
+ rx_ip = rx_gre[IPv6]
+
+ self.assertEqual(rx_ip.src, tx_ip.src)
+ self.assertEqual(rx_ip.dst, tx_ip.dst)
+
+ except:
+ self.logger.error(ppp("Rx:", rx))
+ self.logger.error(ppp("Tx:", tx))
+ raise
+
def verify_tunneled_l2o4(self, src_if, capture, sent,
tunnel_src, tunnel_dst):
self.assertEqual(len(capture), len(sent))
@@ -275,7 +337,7 @@ class TestGRE(VppTestCase):
raise
def test_gre(self):
- """ GRE tunnel Tests """
+ """ GRE IPv4 tunnel Tests """
#
# Create an L3 GRE tunnel.
@@ -438,6 +500,79 @@ class TestGRE(VppTestCase):
self.pg0.unconfig_ip6()
+ def test_gre6(self):
+ """ GRE IPv6 tunnel Tests """
+
+ #
+ # Create an L3 GRE tunnel.
+ # - set it admin up
+ # - assign an IP Address
+ # - Add a route via the tunnel
+ #
+ gre_if = VppGre6Interface(self,
+ self.pg2.local_ip6,
+ "1002::1")
+ gre_if.add_vpp_config()
+ gre_if.admin_up()
+ gre_if.config_ip6()
+
+ route_via_tun = VppIpRoute(self, "4004::1", 128,
+ [VppRoutePath("0::0",
+ gre_if.sw_if_index,
+ is_ip6=1)],
+ is_ip6=1)
+
+ route_via_tun.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - they are all dropped since the tunnel's desintation IP
+ # is unresolved - or resolves via the default route - which
+ # which is a drop.
+ #
+ tx = self.create_stream_ip6(self.pg2, "5005::1", "4004::1")
+ self.pg2.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ self.pg2.assert_nothing_captured(
+ remark="GRE packets forwarded without DIP resolved")
+
+ #
+ # Add a route that resolves the tunnel's destination
+ #
+ route_tun_dst = VppIpRoute(self, "1002::1", 128,
+ [VppRoutePath(self.pg2.remote_ip6,
+ self.pg2.sw_if_index,
+ is_ip6=1)],
+ is_ip6=1)
+ route_tun_dst.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - packets are GRE encapped
+ #
+ self.vapi.cli("clear trace")
+ tx = self.create_stream_ip6(self.pg2, "5005::1", "4004::1")
+ self.pg2.add_stream(tx)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg2.get_capture(len(tx))
+ self.verify_tunneled_6o6(self.pg2, rx, tx,
+ self.pg2.local_ip6, "1002::1")
+
+ #
+ # test case cleanup
+ #
+ route_tun_dst.remove_vpp_config()
+ route_via_tun.remove_vpp_config()
+ gre_if.remove_vpp_config()
+
+ self.pg2.unconfig_ip6()
+
def test_gre_vrf(self):
""" GRE tunnel VRF Tests """
diff --git a/test/vpp_gre_interface.py b/test/vpp_gre_interface.py
index 58a68290c60..1c71875f73a 100644
--- a/test/vpp_gre_interface.py
+++ b/test/vpp_gre_interface.py
@@ -34,3 +34,38 @@ class VppGreInterface(VppInterface):
r = self.test.vapi.gre_tunnel_add_del(s, d,
outer_fib_id=self.t_outer_fib,
is_add=0)
+
+
+class VppGre6Interface(VppInterface):
+ """
+ VPP GRE IPv6 interface
+ """
+
+ def __init__(self, test, src_ip, dst_ip, outer_fib_id=0, is_teb=0):
+ """ Create VPP loopback interface """
+ self._sw_if_index = 0
+ super(VppGre6Interface, self).__init__(test)
+ self._test = test
+ self.t_src = src_ip
+ self.t_dst = dst_ip
+ self.t_outer_fib = outer_fib_id
+ self.t_is_teb = is_teb
+
+ def add_vpp_config(self):
+ s = socket.inet_pton(socket.AF_INET6, self.t_src)
+ d = socket.inet_pton(socket.AF_INET6, self.t_dst)
+ r = self.test.vapi.gre_tunnel_add_del(s, d,
+ outer_fib_id=self.t_outer_fib,
+ is_teb=self.t_is_teb,
+ is_ip6=1)
+ self._sw_if_index = r.sw_if_index
+ self.generate_remote_hosts()
+
+ def remove_vpp_config(self):
+ s = socket.inet_pton(socket.AF_INET6, self.t_src)
+ d = socket.inet_pton(socket.AF_INET6, self.t_dst)
+ self.unconfig()
+ r = self.test.vapi.gre_tunnel_add_del(s, d,
+ outer_fib_id=self.t_outer_fib,
+ is_add=0,
+ is_ip6=1)