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authorChristian Hopps <chopps@labn.net>2020-05-04 10:28:03 -0400
committerNeale Ranns <nranns@cisco.com>2020-05-05 11:25:58 +0000
commitf5d38e05ac6c9c56311eb4d75ca2644d592ae535 (patch)
tree5d844eda85b0130c5fc7d29f89ccce53009523eb /test/test_ip4.py
parent2fdb41ae41bd3a034bf28d06c17df992fc664d37 (diff)
api: ip: add IP_ROUTE_LOOKUP API
Add an IP_ROUTE_LOOKUP function that does either an exact match or longest prefix match in a given fib table for a given prefix returning the match if present. Add API test. Type: improvement Signed-off-by: Christian Hopps <chopps@labn.net> Change-ID: I67ec5a61079f4acf1349a9c646185f91f5f11806
Diffstat (limited to 'test/test_ip4.py')
-rw-r--r--test/test_ip4.py74
1 files changed, 74 insertions, 0 deletions
diff --git a/test/test_ip4.py b/test/test_ip4.py
index 6f8047cace9..43804c7c40a 100644
--- a/test/test_ip4.py
+++ b/test/test_ip4.py
@@ -214,6 +214,80 @@ class TestIPv4(VppTestCase):
self.verify_capture(i, pkts)
+class TestIPv4RouteLookup(VppTestCase):
+ """ IPv4 Route Lookup Test Case """
+ routes = []
+
+ def route_lookup(self, prefix, exact):
+ return self.vapi.api(self.vapi.papi.ip_route_lookup,
+ {
+ 'table_id': 0,
+ 'exact': exact,
+ 'prefix': prefix,
+ })
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv4RouteLookup, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv4RouteLookup, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPv4RouteLookup, self).setUp()
+
+ drop_nh = VppRoutePath("127.0.0.1", 0xffffffff,
+ type=FibPathType.FIB_PATH_TYPE_DROP)
+
+ # Add 3 routes
+ r = VppIpRoute(self, "1.1.0.0", 16, [drop_nh])
+ r.add_vpp_config()
+ self.routes.append(r)
+
+ r = VppIpRoute(self, "1.1.1.0", 24, [drop_nh])
+ r.add_vpp_config()
+ self.routes.append(r)
+
+ r = VppIpRoute(self, "1.1.1.1", 32, [drop_nh])
+ r.add_vpp_config()
+ self.routes.append(r)
+
+ def tearDown(self):
+ # Remove the routes we added
+ for r in self.routes:
+ r.remove_vpp_config()
+
+ super(TestIPv4RouteLookup, self).tearDown()
+
+ def test_exact_match(self):
+ # Verify we find the host route
+ prefix = "1.1.1.1/32"
+ result = self.route_lookup(prefix, True)
+ assert (prefix == str(result.route.prefix))
+
+ # Verify we find a middle prefix route
+ prefix = "1.1.1.0/24"
+ result = self.route_lookup(prefix, True)
+ assert (prefix == str(result.route.prefix))
+
+ # Verify we do not find an available LPM.
+ with self.vapi.assert_negative_api_retval():
+ self.route_lookup("1.1.1.2/32", True)
+
+ def test_longest_prefix_match(self):
+ # verify we find lpm
+ lpm_prefix = "1.1.1.0/24"
+ result = self.route_lookup("1.1.1.2/32", False)
+ assert (lpm_prefix == str(result.route.prefix))
+
+ # Verify we find the exact when not requested
+ result = self.route_lookup(lpm_prefix, False)
+ assert (lpm_prefix == str(result.route.prefix))
+
+ # Can't seem to delete the default route so no negative LPM test.
+
+
class TestIPv4IfAddrRoute(VppTestCase):
""" IPv4 Interface Addr Route Test Case """