aboutsummaryrefslogtreecommitdiffstats
path: root/test/test_ip4.py
diff options
context:
space:
mode:
authorMatthew Smith <mgsmith@netgate.com>2019-08-07 11:46:30 -0500
committerNeale Ranns <nranns@cisco.com>2019-08-12 16:50:54 +0000
commit6c92f5babdc3c52cf343509fc9cf9d8a9a3df390 (patch)
tree969249e9836e232929949492f3f45ac5c1deba35 /test/test_ip4.py
parent79c04d622a55b75de969bf010cdcb820ccfbe816 (diff)
ip: allow addrs from the same prefix on intf
Type: feature Adding a prefix to an interface was not permitted if it overlapped with another prefix on an interface which used the same FIB. Loosen the restriction. Allow 2 or more addresses from the same prefix on a single interface. Reference count the prefix to figure out when a glean/connected route for the prefix needs to be added or removed. Added unit tests to check that the route is only removed when all addresses in the prefix are removed from the interface. Change-Id: I1a962ecb5e1ee65fc6d41f98a4cc097a51a55321 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
Diffstat (limited to 'test/test_ip4.py')
-rw-r--r--test/test_ip4.py65
1 files changed, 59 insertions, 6 deletions
diff --git a/test/test_ip4.py b/test/test_ip4.py
index a6920f8dba5..0923771200e 100644
--- a/test/test_ip4.py
+++ b/test/test_ip4.py
@@ -15,7 +15,9 @@ from framework import VppTestCase, VppTestRunner
from util import ppp
from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpMRoute, \
VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \
- VppMplsTable, VppIpTable, FibPathType, find_route
+ VppMplsTable, VppIpTable, FibPathType, find_route, \
+ VppIpInterfaceAddress
+from vpp_ip import VppIpAddress
from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
from vpp_papi import VppEnum
@@ -210,19 +212,19 @@ class TestIPv4(VppTestCase):
self.verify_capture(i, pkts)
-class TestIPV4IfAddrRoute(VppTestCase):
+class TestIPv4IfAddrRoute(VppTestCase):
""" IPv4 Interface Addr Route Test Case """
@classmethod
def setUpClass(cls):
- super(TestIPV4IfAddrRoute, cls).setUpClass()
+ super(TestIPv4IfAddrRoute, cls).setUpClass()
@classmethod
def tearDownClass(cls):
- super(TestIPV4IfAddrRoute, cls).tearDownClass()
+ super(TestIPv4IfAddrRoute, cls).tearDownClass()
def setUp(self):
- super(TestIPV4IfAddrRoute, self).setUp()
+ super(TestIPv4IfAddrRoute, self).setUp()
# create 1 pg interface
self.create_pg_interfaces(range(1))
@@ -233,11 +235,62 @@ class TestIPV4IfAddrRoute(VppTestCase):
i.resolve_arp()
def tearDown(self):
- super(TestIPV4IfAddrRoute, self).tearDown()
+ super(TestIPv4IfAddrRoute, self).tearDown()
for i in self.pg_interfaces:
i.unconfig_ip4()
i.admin_down()
+ def test_ipv4_ifaddrs_same_prefix(self):
+ """ IPv4 Interface Addresses Same Prefix test
+
+ Test scenario:
+
+ - Verify no route in FIB for prefix 10.10.10.0/24
+ - Configure IPv4 address 10.10.10.10/24 on an interface
+ - Verify route in FIB for prefix 10.10.10.0/24
+ - Configure IPv4 address 10.10.10.20/24 on an interface
+ - Delete 10.10.10.10/24 from interface
+ - Verify route in FIB for prefix 10.10.10.0/24
+ - Delete 10.10.10.20/24 from interface
+ - Verify no route in FIB for prefix 10.10.10.0/24
+ """
+
+ # create two addresses, verify route not present
+ if_addr1 = VppIpInterfaceAddress(self, self.pg0,
+ VppIpAddress("10.10.10.10"), 24)
+ if_addr2 = VppIpInterfaceAddress(self, self.pg0,
+ VppIpAddress("10.10.10.20"), 24)
+ self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.0/24
+ self.assertFalse(find_route(self, "10.10.10.10", 32))
+ self.assertFalse(find_route(self, "10.10.10.20", 32))
+ self.assertFalse(find_route(self, "10.10.10.255", 32))
+ self.assertFalse(find_route(self, "10.10.10.0", 32))
+
+ # configure first address, verify route present
+ if_addr1.add_vpp_config()
+ self.assertTrue(if_addr1.query_vpp_config()) # 10.10.10.0/24
+ self.assertTrue(find_route(self, "10.10.10.10", 32))
+ self.assertFalse(find_route(self, "10.10.10.20", 32))
+ self.assertTrue(find_route(self, "10.10.10.255", 32))
+ self.assertTrue(find_route(self, "10.10.10.0", 32))
+
+ # configure second address, delete first, verify route not removed
+ if_addr2.add_vpp_config()
+ if_addr1.remove_vpp_config()
+ self.assertTrue(if_addr1.query_vpp_config()) # 10.10.10.0/24
+ self.assertFalse(find_route(self, "10.10.10.10", 32))
+ self.assertTrue(find_route(self, "10.10.10.20", 32))
+ self.assertTrue(find_route(self, "10.10.10.255", 32))
+ self.assertTrue(find_route(self, "10.10.10.0", 32))
+
+ # delete second address, verify route removed
+ if_addr2.remove_vpp_config()
+ self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.0/24
+ self.assertFalse(find_route(self, "10.10.10.10", 32))
+ self.assertFalse(find_route(self, "10.10.10.20", 32))
+ self.assertFalse(find_route(self, "10.10.10.255", 32))
+ self.assertFalse(find_route(self, "10.10.10.0", 32))
+
def test_ipv4_ifaddr_route(self):
""" IPv4 Interface Address Route test