interfaces in 5 VRFs are tested
- jumbo packets in configuration with 15 pg-ip6 interfaces leads to \
problems too
- - Reset of FIB table / VRF does not remove routes from IP FIB (see Jira \
- ticket https://jira.fd.io/browse/VPP-560) so checks of reset VRF tables \
- are skipped in tests 2, 3 and 4
**config 1**
- add 15 pg-ip6 interfaces
- no packet received in case of pg-ip6 interfaces not in VRF
**config 2**
- - delete 2 VRFs
+ - reset 2 VRFs
**test 2**
- send IP6 packets between all pg-ip6 interfaces in all VRF groups
- no packet received in case of pg-ip6 interfaces not in VRF
**config 3**
- - add 1 of deleted VRFs and 1 new VRF
+ - add 1 of reset VRFs and 1 new VRF
**test 3**
- send IP6 packets between all pg-ip6 interfaces in all VRF groups
- no packet received in case of pg-ip6 interfaces not in VRF
**config 4**
- - delete all VRFs (i.e. no VRF except VRF=0 created)
+ - reset all VRFs (i.e. no VRF except VRF=0 created)
**test 4**
- send IP6 packets between all pg-ip6 interfaces in all VRF groups
import unittest
import random
+import socket
from scapy.packet import Raw
from scapy.layers.l2 import Ether
-from scapy.layers.inet6 import IPv6, UDP
+from scapy.layers.inet6 import UDP, IPv6, ICMPv6ND_NS, ICMPv6ND_RA, \
+ RouterAlert, IPv6ExtHdrHopByHop
+from scapy.utils6 import in6_ismaddr, in6_isllsnmaddr, in6_getAddrType
+from scapy.pton_ntop import inet_ntop
+from scapy.data import IPV6_ADDR_UNICAST
from framework import VppTestCase, VppTestRunner
from util import ppp
+# VRF status constants
+VRF_NOT_CONFIGURED = 0
+VRF_CONFIGURED = 1
+VRF_RESET = 2
+
+
+def is_ipv6_misc_ext(p):
+ """ Is packet one of uninteresting IPv6 broadcasts (extended to filter out
+ ICMPv6 Neighbor Discovery - Neighbor Advertisement packets too)? """
+ if p.haslayer(ICMPv6ND_RA):
+ if in6_ismaddr(p[IPv6].dst):
+ return True
+ if p.haslayer(ICMPv6ND_NS):
+ if in6_isllsnmaddr(p[IPv6].dst):
+ return True
+ if p.haslayer(IPv6ExtHdrHopByHop):
+ for o in p[IPv6ExtHdrHopByHop].options:
+ if isinstance(o, RouterAlert):
+ return True
+ return False
+
class TestIP6VrfMultiInst(VppTestCase):
""" IP6 VRF Multi-instance Test Case """
# Create list of VRFs
cls.vrf_list = list()
- # Create list of deleted VRFs
- cls.vrf_deleted_list = list()
+ # Create list of reset VRFs
+ cls.vrf_reset_list = list()
# Create list of pg_interfaces in VRFs
cls.pg_in_vrf = list()
self.logger.info("IPv6 VRF ID %d created" % vrf_id)
if vrf_id not in self.vrf_list:
self.vrf_list.append(vrf_id)
- if vrf_id in self.vrf_deleted_list:
- self.vrf_deleted_list.remove(vrf_id)
+ if vrf_id in self.vrf_reset_list:
+ self.vrf_reset_list.remove(vrf_id)
for j in range(self.pg_ifs_per_vrf):
pg_if = self.pg_if_by_vrf_id[vrf_id][j]
pg_if.set_table_ip6(vrf_id)
def reset_vrf(self, vrf_id):
"""
- Delete required FIB table / VRF.
+ Reset required FIB table / VRF.
- :param int vrf_id: The FIB table / VRF ID to be deleted.
+ :param int vrf_id: The FIB table / VRF ID to be reset.
"""
# self.vapi.reset_vrf(vrf_id, is_ipv6=1)
self.vapi.reset_fib(vrf_id, is_ipv6=1)
if vrf_id in self.vrf_list:
self.vrf_list.remove(vrf_id)
- if vrf_id not in self.vrf_deleted_list:
- self.vrf_deleted_list.append(vrf_id)
+ if vrf_id not in self.vrf_reset_list:
+ self.vrf_reset_list.append(vrf_id)
for j in range(self.pg_ifs_per_vrf):
pg_if = self.pg_if_by_vrf_id[vrf_id][j]
if pg_if in self.pg_in_vrf:
:return: 1 if the FIB table / VRF ID is configured, otherwise return 0.
"""
ip6_fib_dump = self.vapi.ip6_fib_dump()
+ vrf_exist = False
vrf_count = 0
for ip6_fib_details in ip6_fib_dump:
if ip6_fib_details[2] == vrf_id:
- vrf_count += 1
- if vrf_count == 0:
+ if not vrf_exist:
+ vrf_exist = True
+ addr = inet_ntop(socket.AF_INET6, ip6_fib_details[4])
+ addrtype = in6_getAddrType(addr)
+ vrf_count += 1 if addrtype == IPV6_ADDR_UNICAST else 0
+ if not vrf_exist and vrf_count == 0:
self.logger.info("IPv6 VRF ID %d is not configured" % vrf_id)
- return 0
+ return VRF_NOT_CONFIGURED
+ elif vrf_exist and vrf_count == 0:
+ self.logger.info("IPv6 VRF ID %d has been reset" % vrf_id)
+ return VRF_RESET
else:
self.logger.info("IPv6 VRF ID %d is configured" % vrf_id)
- return 1
+ return VRF_CONFIGURED
def run_verify_test(self):
"""
capture = pg_if.get_capture(remark="interface is in VRF")
self.verify_capture(pg_if, capture)
elif pg_if in self.pg_not_in_vrf:
- pg_if.assert_nothing_captured(remark="interface is not in VRF")
+ pg_if.assert_nothing_captured(remark="interface is not in VRF",
+ filter_out_fn=is_ipv6_misc_ext)
self.logger.debug("No capture for interface %s" % pg_if.name)
else:
raise Exception("Unknown interface: %s" % pg_if.name)
# Verify 1
for vrf_id in self.vrf_list:
- self.assertEqual(self.verify_vrf(vrf_id), 1)
+ self.assertEqual(self.verify_vrf(vrf_id), VRF_CONFIGURED)
# Test 1
self.run_verify_test()
- @unittest.skip("IPv6 FIB reset leads to crash of VPP - Jira ticket "
- "https://jira.fd.io/browse/VPP-643")
def test_ip6_vrf_02(self):
""" IP6 VRF Multi-instance test 2 - reset 2 VRFs
"""
self.reset_vrf(2)
# Verify 2
- # for vrf_id in self.vrf_deleted_list:
- # self.assertEqual(self.verify_vrf(vrf_id), 0)
+ for vrf_id in self.vrf_reset_list:
+ self.assertEqual(self.verify_vrf(vrf_id), VRF_RESET)
for vrf_id in self.vrf_list:
- self.assertEqual(self.verify_vrf(vrf_id), 1)
+ self.assertEqual(self.verify_vrf(vrf_id), VRF_CONFIGURED)
# Test 2
self.run_verify_test()
+ # Reset routes learned from ICMPv6 Neighbor Discovery
+ for vrf_id in self.vrf_reset_list:
+ self.reset_vrf(vrf_id)
+
def test_ip6_vrf_03(self):
""" IP6 VRF Multi-instance 3 - add 2 VRFs
"""
# Config 3
- # Add 1 of deleted VRFs and 1 new VRF
- # self.create_vrf_and_assign_interfaces(1)
+ # Add 1 of reset VRFs and 1 new VRF
+ self.create_vrf_and_assign_interfaces(1)
self.create_vrf_and_assign_interfaces(1, start=5)
# Verify 3
- # for vrf_id in self.vrf_deleted_list:
- # self.assertEqual(self.verify_vrf(vrf_id), 0)
+ for vrf_id in self.vrf_reset_list:
+ self.assertEqual(self.verify_vrf(vrf_id), VRF_RESET)
for vrf_id in self.vrf_list:
- self.assertEqual(self.verify_vrf(vrf_id), 1)
+ self.assertEqual(self.verify_vrf(vrf_id), VRF_CONFIGURED)
# Test 3
self.run_verify_test()
- @unittest.skip("IPv6 FIB reset leads to crash of VPP - Jira ticket "
- "https://jira.fd.io/browse/VPP-643")
+ # Reset routes learned from ICMPv6 Neighbor Discovery
+ for vrf_id in self.vrf_reset_list:
+ self.reset_vrf(vrf_id)
+
def test_ip6_vrf_04(self):
""" IP6 VRF Multi-instance test 4 - reset 4 VRFs
"""
# Config 4
- # Delete all VRFs (i.e. no VRF except VRF=0 created)
+ # Reset all VRFs (i.e. no VRF except VRF=0 created)
for i in range(len(self.vrf_list)):
self.reset_vrf(self.vrf_list[0])
# Verify 4
- # for vrf_id in self.vrf_deleted_list:
- # self.assertEqual(self.verify_vrf(vrf_id), 0)
+ for vrf_id in self.vrf_reset_list:
+ self.assertEqual(self.verify_vrf(vrf_id), VRF_RESET)
for vrf_id in self.vrf_list:
- self.assertEqual(self.verify_vrf(vrf_id), 1)
+ self.assertEqual(self.verify_vrf(vrf_id), VRF_CONFIGURED)
# Test 4
self.run_verify_test()
Code Review / vpp.git / commitdiff