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
**verify 1**
- check VRF data by parsing output of ip6_fib_dump API command
- - all packets received correctly in case of pg-ip6 interfaces in VRF
+ - all packets received correctly in case of pg-ip6 interfaces in the same
+ VRF
- no packet received in case of pg-ip6 interfaces not in VRF
+ - no packet received in case of pg-ip6 interfaces in different VRFs
**config 2**
- - delete 2 VRFs
+ - reset 2 VRFs
**test 2**
- send IP6 packets between all pg-ip6 interfaces in all VRF groups
**verify 2**
- check VRF data by parsing output of ip6_fib_dump API command
- - all packets received correctly in case of pg-ip6 interfaces in VRF
+ - all packets received correctly in case of pg-ip6 interfaces in the same
+ VRF
- no packet received in case of pg-ip6 interfaces not in VRF
+ - no packet received in case of pg-ip6 interfaces in different VRFs
**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
**verify 3**
- check VRF data by parsing output of ip6_fib_dump API command
- - all packets received correctly in case of pg-ip6 interfaces in VRF
+ - all packets received correctly in case of pg-ip6 interfaces in the same
+ VRF
- no packet received in case of pg-ip6 interfaces not in VRF
+ - no packet received in case of pg-ip6 interfaces in different 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)
**test 4**
- send IP6 packets between all pg-ip6 interfaces in all VRF groups
**verify 4**
- check VRF data by parsing output of ip6_fib_dump API command
- - all packets received correctly in case of pg-ip6 interfaces in VRF
+ - all packets received correctly in case of pg-ip6 interfaces in the same
+ VRF
- no packet received in case of pg-ip6 interfaces not in VRF
+ - no packet received in case of pg-ip6 interfaces in different VRFs
"""
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 framework import VppTestCase, VppTestRunner
from util import ppp
+from vrf import VRFState
+
+
+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):
# 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()
- # Create list of pg_interfaces not in BDs
+ # Create list of pg_interfaces not in VRFs
cls.pg_not_in_vrf = [pg_if for pg_if in cls.pg_interfaces]
# Create mapping of pg_interfaces to VRF IDs
def create_vrf_and_assign_interfaces(self, count, start=1):
"""
- Create required number of FIB tables / VRFs, put 3 l2-pg interfaces
+ Create required number of FIB tables / VRFs, put 3 pg-ip6 interfaces
to every FIB table / VRF.
:param int count: Number of FIB tables / VRFs to be created.
for i in range(count):
vrf_id = i + start
pg_if = self.pg_if_by_vrf_id[vrf_id][0]
- dest_addr = pg_if.remote_hosts[0].ip6n
+ dest_addr = pg_if.local_ip6n
dest_addr_len = 64
- self.vapi.ip_add_del_route(
- dest_addr, dest_addr_len, pg_if.local_ip6n, is_ipv6=1,
- table_id=vrf_id, create_vrf_if_needed=1, is_multipath=1)
+ self.vapi.ip_table_add_del(vrf_id, is_add=1, is_ipv6=1)
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)
self.pg_not_in_vrf.remove(pg_if)
pg_if.config_ip6()
pg_if.disable_ipv6_ra()
- pg_if.configure_ipv6_neighbors(vrf_id)
+ pg_if.configure_ipv6_neighbors()
self.logger.debug(self.vapi.ppcli("show ip6 fib"))
self.logger.debug(self.vapi.ppcli("show ip6 neighbors"))
- def reset_vrf(self, vrf_id):
+ def reset_vrf_and_remove_from_vrf_list(self, vrf_id):
"""
- Delete required FIB table / VRF.
+ Reset required FIB table / VRF and remove it from VRF list.
- :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]
+ pg_if.unconfig_ip6()
if pg_if in self.pg_in_vrf:
self.pg_in_vrf.remove(pg_if)
if pg_if not in self.pg_not_in_vrf:
self.pg_not_in_vrf.append(pg_if)
- self.logger.info("IPv6 VRF ID %d reset" % vrf_id)
+ self.logger.info("IPv6 VRF ID %d reset finished" % vrf_id)
self.logger.debug(self.vapi.ppcli("show ip6 fib"))
self.logger.debug(self.vapi.ppcli("show ip6 neighbors"))
+ self.vapi.ip_table_add_del(vrf_id, is_add=0, is_ipv6=1)
def create_stream(self, src_if, packet_sizes):
"""
% (src_if.name, len(pkts)))
return pkts
+ def create_stream_crosswise_vrf(self, src_if, vrf_id, packet_sizes):
+ """
+ Create input packet stream for negative test for leaking across
+ different VRFs for defined interface using hosts list.
+
+ :param object src_if: Interface to create packet stream for.
+ :param int vrf_id: The FIB table / VRF ID where src_if is assigned.
+ :param list packet_sizes: List of required packet sizes.
+ :return: Stream of packets.
+ """
+ pkts = []
+ src_hosts = src_if.remote_hosts
+ vrf_lst = list(self.vrf_list)
+ vrf_lst.remove(vrf_id)
+ for vrf in vrf_lst:
+ for dst_if in self.pg_if_by_vrf_id[vrf]:
+ for dst_host in dst_if.remote_hosts:
+ src_host = random.choice(src_hosts)
+ pkt_info = self.create_packet_info(src_if, dst_if)
+ payload = self.info_to_payload(pkt_info)
+ p = (Ether(dst=src_if.local_mac, src=src_host.mac) /
+ IPv6(src=src_host.ip6, dst=dst_host.ip6) /
+ UDP(sport=1234, dport=1234) /
+ Raw(payload))
+ pkt_info.data = p.copy()
+ size = random.choice(packet_sizes)
+ self.extend_packet(p, size)
+ pkts.append(p)
+ self.logger.debug("Input stream created for port %s. Length: %u pkt(s)"
+ % (src_if.name, len(pkts)))
+ return pkts
+
def verify_capture(self, pg_if, capture):
"""
Verify captured input packet stream for defined interface.
: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 ip6_fib_details.table_id == vrf_id:
+ if not vrf_exist:
+ vrf_exist = True
+ addr = inet_ntop(socket.AF_INET6, ip6_fib_details.address)
+ found = False
+ for pg_if in self.pg_if_by_vrf_id[vrf_id]:
+ if found:
+ break
+ for host in pg_if.remote_hosts:
+ if str(addr) == str(host.ip6):
+ vrf_count += 1
+ found = True
+ break
+ if not vrf_exist and vrf_count == 0:
self.logger.info("IPv6 VRF ID %d is not configured" % vrf_id)
- return 0
+ return VRFState.not_configured
+ elif vrf_exist and vrf_count == 0:
+ self.logger.info("IPv6 VRF ID %d has been reset" % vrf_id)
+ return VRFState.reset
else:
self.logger.info("IPv6 VRF ID %d is configured" % vrf_id)
- return 1
+ return VRFState.configured
def run_verify_test(self):
"""
- Create packet streams for all configured l2-pg interfaces, send all \
+ Create packet streams for all configured pg interfaces, send all \
prepared packet streams and verify that:
- - all packets received correctly on all pg-l2 interfaces assigned
- to bridge domains
- - no packet received on all pg-l2 interfaces not assigned to bridge
- domains
-
- :raise RuntimeError: If no packet captured on l2-pg interface assigned
- to the bridge domain or if any packet is captured on l2-pg
- interface not assigned to the bridge domain.
+ - all packets received correctly on all pg-ip6 interfaces assigned
+ to VRFs
+ - no packet received on all pg-ip6 interfaces not assigned to VRFs
+
+ :raise RuntimeError: If no packet captured on pg-ip6 interface assigned
+ to VRF or if any packet is captured on pg-ip6 interface not
+ assigned to VRF.
"""
# Test
# Create incoming packet streams for packet-generator interfaces
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)
+ def run_crosswise_vrf_test(self):
+ """
+ Create packet streams for every pg-ip6 interface in VRF towards all
+ pg-ip6 interfaces in other VRFs, send all prepared packet streams and \
+ verify that:
+ - no packet received on all configured pg-ip6 interfaces
+
+ :raise RuntimeError: If any packet is captured on any pg-ip6 interface.
+ """
+ # Test
+ # Create incoming packet streams for packet-generator interfaces
+ for vrf_id in self.vrf_list:
+ for pg_if in self.pg_if_by_vrf_id[vrf_id]:
+ pkts = self.create_stream_crosswise_vrf(
+ pg_if, vrf_id, self.pg_if_packet_sizes)
+ pg_if.add_stream(pkts)
+
+ # Enable packet capture and start packet sending
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ # Verify
+ # Verify outgoing packet streams per packet-generator interface
+ for pg_if in self.pg_interfaces:
+ pg_if.assert_nothing_captured(remark="interface is in other VRF",
+ filter_out_fn=is_ipv6_misc_ext)
+ self.logger.debug("No capture for interface %s" % pg_if.name)
+
def test_ip6_vrf_01(self):
""" IP6 VRF Multi-instance test 1 - create 4 VRFs
"""
# Verify 1
for vrf_id in self.vrf_list:
- self.assertEqual(self.verify_vrf(vrf_id), 1)
+ self.assert_equal(self.verify_vrf(vrf_id),
+ VRFState.configured, VRFState)
# Test 1
self.run_verify_test()
+ self.run_crosswise_vrf_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
"""
# Config 2
# Delete 2 VRFs
- self.reset_vrf(1)
- self.reset_vrf(2)
+ self.reset_vrf_and_remove_from_vrf_list(1)
+ self.reset_vrf_and_remove_from_vrf_list(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.assert_equal(self.verify_vrf(vrf_id),
+ VRFState.reset, VRFState)
for vrf_id in self.vrf_list:
- self.assertEqual(self.verify_vrf(vrf_id), 1)
+ self.assert_equal(self.verify_vrf(vrf_id),
+ VRFState.configured, VRFState)
# Test 2
self.run_verify_test()
+ self.run_crosswise_vrf_test()
+
+ # Reset routes learned from ICMPv6 Neighbor Discovery
+ for vrf_id in self.vrf_reset_list:
+ self.reset_vrf_and_remove_from_vrf_list(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.assert_equal(self.verify_vrf(vrf_id),
+ VRFState.reset, VRFState)
for vrf_id in self.vrf_list:
- self.assertEqual(self.verify_vrf(vrf_id), 1)
+ self.assert_equal(self.verify_vrf(vrf_id),
+ VRFState.configured, VRFState)
# Test 3
self.run_verify_test()
+ self.run_crosswise_vrf_test()
+
+ # Reset routes learned from ICMPv6 Neighbor Discovery
+ for vrf_id in self.vrf_reset_list:
+ self.reset_vrf_and_remove_from_vrf_list(vrf_id)
- @unittest.skip("IPv6 FIB reset leads to crash of VPP - Jira ticket "
- "https://jira.fd.io/browse/VPP-643")
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 configured)
for i in range(len(self.vrf_list)):
- self.reset_vrf(self.vrf_list[0])
+ self.reset_vrf_and_remove_from_vrf_list(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_list:
- self.assertEqual(self.verify_vrf(vrf_id), 1)
+ for vrf_id in self.vrf_reset_list:
+ self.assert_equal(self.verify_vrf(vrf_id),
+ VRFState.reset, VRFState)
+ vrf_list_length = len(self.vrf_list)
+ self.assertEqual(
+ vrf_list_length, 0,
+ "List of configured VRFs is not empty: %s != 0" % vrf_list_length)
# Test 4
self.run_verify_test()
+ self.run_crosswise_vrf_test()
if __name__ == '__main__':
Code Review / vpp.git / blobdiff