diff options
| -rw-r--r-- | test/test_ip6_vrf_multi_instance.py | 110 |
1 files changed, 73 insertions, 37 deletions
diff --git a/test/test_ip6_vrf_multi_instance.py b/test/test_ip6_vrf_multi_instance.py index 94185358..b3b080eb 100644 --- a/test/test_ip6_vrf_multi_instance.py +++ b/test/test_ip6_vrf_multi_instance.py @@ -6,9 +6,6 @@ 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 @@ -25,7 +22,7 @@ - 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 @@ -36,7 +33,7 @@ - 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 @@ -47,7 +44,7 @@ - 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 @@ -60,14 +57,40 @@ 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 """ @@ -112,8 +135,8 @@ class TestIP6VrfMultiInst(VppTestCase): # 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() @@ -170,8 +193,8 @@ class TestIP6VrfMultiInst(VppTestCase): 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) @@ -189,16 +212,16 @@ class TestIP6VrfMultiInst(VppTestCase): 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: @@ -287,16 +310,24 @@ class TestIP6VrfMultiInst(VppTestCase): :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): """ @@ -328,7 +359,8 @@ class TestIP6VrfMultiInst(VppTestCase): 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) @@ -342,13 +374,11 @@ class TestIP6VrfMultiInst(VppTestCase): # 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 """ @@ -358,46 +388,52 @@ class TestIP6VrfMultiInst(VppTestCase): 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() |