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authorNeale Ranns <nranns@cisco.com>2019-03-13 06:41:52 -0700
committerDamjan Marion <dmarion@me.com>2019-03-14 13:04:00 +0000
commit6348074be4a7efd30f7f6af4c4ec940076afe2fe (patch)
treecf31e417ce8807a998f397d8904ea3a71e06c3c0
parentfff68f7a5bab9be0fd9c431ba36a23458d817639 (diff)
TEST: link-state up/down notifications on FIB forwarding
Change-Id: I478c4e5feb9603b7443efdf2967f98f9bde7ea0f Signed-off-by: Neale Ranns <nranns@cisco.com>
-rw-r--r--src/plugins/unittest/CMakeLists.txt1
-rw-r--r--src/plugins/unittest/interface_test.c75
-rw-r--r--test/test_ip4.py83
-rw-r--r--test/vpp_interface.py8
4 files changed, 166 insertions, 1 deletions
diff --git a/src/plugins/unittest/CMakeLists.txt b/src/plugins/unittest/CMakeLists.txt
index 3e98d2a71e5..1716077e129 100644
--- a/src/plugins/unittest/CMakeLists.txt
+++ b/src/plugins/unittest/CMakeLists.txt
@@ -16,6 +16,7 @@ add_vpp_plugin(unittest
bier_test.c
bihash_test.c
fib_test.c
+ interface_test.c
mfib_test.c
session_test.c
string_test.c
diff --git a/src/plugins/unittest/interface_test.c b/src/plugins/unittest/interface_test.c
new file mode 100644
index 00000000000..4cf5ae43b3c
--- /dev/null
+++ b/src/plugins/unittest/interface_test.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/vnet.h>
+
+static clib_error_t *
+test_interface_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vnet_hw_interface_flags_t flags;
+ vnet_main_t *vnm;
+ u32 sw_if_index;
+
+ flags = VNET_HW_INTERFACE_FLAG_NONE;
+ sw_if_index = ~0;
+ vnm = vnet_get_main ();
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat
+ (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
+ ;
+ else if (unformat (input, "up"))
+ flags = VNET_HW_INTERFACE_FLAG_LINK_UP;
+ else if (unformat (input, "down"))
+ ;
+ else
+ break;
+ }
+
+ if (~0 != sw_if_index)
+ {
+ vnet_sw_interface_t *sw;
+
+ sw = vnet_get_sw_interface (vnm, sw_if_index);
+
+ vnet_hw_interface_set_flags (vnm, sw->hw_if_index, flags);
+ }
+ else
+ {
+ return clib_error_return (0, "unknown interface `%U'",
+ format_unformat_error, input);
+ }
+
+ return (NULL);
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (test_interface_command, static) =
+{
+ .path = "test interface link-state",
+ .short_help = "test interface link-state <interface> [up] [down]",
+ .function = test_interface_command_fn,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/test/test_ip4.py b/test/test_ip4.py
index 6f764373075..c8c0a71d171 100644
--- a/test/test_ip4.py
+++ b/test/test_ip4.py
@@ -899,9 +899,13 @@ class TestIPLoadBalance(VppTestCase):
input.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
+ rxs = []
for oo in outputs:
rx = oo._get_capture(1)
self.assertNotEqual(0, len(rx))
+ for r in rx:
+ rxs.append(r)
+ return rxs
def send_and_expect_one_itf(self, input, pkts, itf):
input.add_stream(pkts)
@@ -1038,6 +1042,53 @@ class TestIPLoadBalance(VppTestCase):
self.pg3, self.pg4])
#
+ # bring down pg1 expect LB to adjust to use only those that are pu
+ #
+ self.pg1.link_down()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg2, self.pg3,
+ self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # bring down pg2 expect LB to adjust to use only those that are pu
+ #
+ self.pg2.link_down()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # bring the links back up - expect LB over all again
+ #
+ self.pg1.link_up()
+ self.pg2.link_up()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg1, self.pg2,
+ self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # The same link-up/down but this time admin state
+ #
+ self.pg1.admin_down()
+ self.pg2.admin_down()
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+ self.pg1.admin_up()
+ self.pg2.admin_up()
+ self.pg1.resolve_arp()
+ self.pg2.resolve_arp()
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg1, self.pg2,
+ self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
# Recursive prefixes
# - testing that 2 stages of load-balancing, no choices
#
@@ -1060,11 +1111,41 @@ class TestIPLoadBalance(VppTestCase):
route_1_1_1_2.add_vpp_config()
#
- # inject the packet on pg0 - expect load-balancing across all 4 paths
+ # inject the packet on pg0 - rx only on via routes output interface
#
self.vapi.cli("clear trace")
self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
+ #
+ # Add a LB route in the presence of a down link - expect no
+ # packets over the down link
+ #
+ self.pg3.link_down()
+
+ route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
+ [VppRoutePath(self.pg3.remote_ip4,
+ self.pg3.sw_if_index),
+ VppRoutePath(self.pg4.remote_ip4,
+ self.pg4.sw_if_index)])
+ route_10_0_0_3.add_vpp_config()
+
+ port_pkts = []
+ for ii in range(257):
+ port_pkts.append(Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(dst="10.0.0.3", src="20.0.0.2") /
+ UDP(sport=1234, dport=1234 + ii) /
+ Raw('\xa5' * 100))
+
+ self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4)
+
+ # bring the link back up
+ self.pg3.link_up()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, port_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
class TestIPVlan0(VppTestCase):
""" IPv4 VLAN-0 """
diff --git a/test/vpp_interface.py b/test/vpp_interface.py
index 84f694d7107..d586c849b02 100644
--- a/test/vpp_interface.py
+++ b/test/vpp_interface.py
@@ -365,6 +365,14 @@ class VppInterface(object):
self.test.vapi.sw_interface_set_flags(self.sw_if_index,
admin_up_down=0)
+ def link_up(self):
+ """Put interface link-state-UP."""
+ self.test.vapi.cli("test interface link-state %s up" % self.name)
+
+ def link_down(self):
+ """Put interface link-state-down."""
+ self.test.vapi.cli("test interface link-state %s down" % self.name)
+
def ip6_enable(self):
"""IPv6 Enable interface"""
self.test.vapi.sw_interface_ip6_enable_disable(self.sw_if_index,