X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_ip4_vrf_multi_instance.py;h=fba00eb2ddc243fa2b1963aebb99f652f5cc29f1;hb=9db6ada779794779158163f6293b479ae7f6ad5e;hp=05de0fb229ba0d523c2b73bbe6bc2dbf481bb856;hpb=95c87b5ae5db74385f56ba5dd08718c65a1edf69;p=vpp.git diff --git a/test/test_ip4_vrf_multi_instance.py b/test/test_ip4_vrf_multi_instance.py index 05de0fb229b..fba00eb2ddc 100644 --- a/test/test_ip4_vrf_multi_instance.py +++ b/test/test_ip4_vrf_multi_instance.py @@ -1,4 +1,4 @@ -#!/usr/bin/env python +#!/usr/bin/env python3 """IP4 VRF Multi-instance Test Case HLD: **NOTES:** @@ -18,8 +18,10 @@ **verify 1** - check VRF data by parsing output of ip_fib_dump API command - - all packets received correctly in case of pg-ip4 interfaces in VRF + - all packets received correctly in case of pg-ip4 interfaces in the same + VRF - no packet received in case of pg-ip4 interfaces not in VRF + - no packet received in case of pg-ip4 interfaces in different VRFs **config 2** - reset 2 VRFs @@ -28,9 +30,10 @@ - send IP4 packets between all pg-ip4 interfaces in all VRF groups **verify 2** - - check VRF data by parsing output of ip_fib_dump API command - - all packets received correctly in case of pg-ip4 interfaces in VRF + - all packets received correctly in case of pg-ip4 interfaces in the same + VRF - no packet received in case of pg-ip4 interfaces not in VRF + - no packet received in case of pg-ip4 interfaces in different VRFs **config 3** - add 1 of reset VRFs and 1 new VRF @@ -40,8 +43,10 @@ **verify 3** - check VRF data by parsing output of ip_fib_dump API command - - all packets received correctly in case of pg-ip4 interfaces in VRF + - all packets received correctly in case of pg-ip4 interfaces in the same + VRF - no packet received in case of pg-ip4 interfaces not in VRF + - no packet received in case of pg-ip4 interfaces in different VRFs **config 4** - reset all created VRFs @@ -51,14 +56,17 @@ **verify 4** - check VRF data by parsing output of ip_fib_dump API command - - all packets received correctly in case of pg-ip4 interfaces in VRF + - all packets received correctly in case of pg-ip4 interfaces in the same + VRF - no packet received in case of pg-ip4 interfaces not in VRF + - no packet received in case of pg-ip4 interfaces in different VRFs """ import unittest import random import socket +import scapy.compat from scapy.packet import Raw from scapy.layers.l2 import Ether from scapy.layers.inet import IP, UDP, ARP @@ -100,7 +108,7 @@ class TestIp4VrfMultiInst(VppTestCase): # Packet flows mapping pg0 -> pg1, pg2 etc. cls.flows = dict() for i in range(len(cls.pg_interfaces)): - multiplicand = i / cls.pg_ifs_per_vrf + multiplicand = i // cls.pg_ifs_per_vrf pg_list = [ cls.pg_interfaces[multiplicand * cls.pg_ifs_per_vrf + j] for j in range(cls.pg_ifs_per_vrf) @@ -124,7 +132,7 @@ class TestIp4VrfMultiInst(VppTestCase): # 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 @@ -140,6 +148,10 @@ class TestIp4VrfMultiInst(VppTestCase): super(TestIp4VrfMultiInst, cls).tearDownClass() raise + @classmethod + def tearDownClass(cls): + super(TestIp4VrfMultiInst, cls).tearDownClass() + def setUp(self): """ Clear trace and packet infos before running each test. @@ -152,13 +164,14 @@ class TestIp4VrfMultiInst(VppTestCase): Show various debug prints after each test. """ super(TestIp4VrfMultiInst, self).tearDown() - if not self.vpp_dead: - self.logger.info(self.vapi.ppcli("show ip fib")) - self.logger.info(self.vapi.ppcli("show ip arp")) + + def show_commands_at_teardown(self): + self.logger.info(self.vapi.ppcli("show ip fib")) + self.logger.info(self.vapi.ppcli("show ip arp")) 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-ip4 interfaces to every FIB table / VRF. :param int count: Number of FIB tables / VRFs to be created. @@ -171,10 +184,7 @@ class TestIp4VrfMultiInst(VppTestCase): pg_if = self.pg_if_by_vrf_id[vrf_id][0] dest_addr = pg_if.local_ip4n dest_addr_len = 24 - self.vapi.ip_table_add_del(vrf_id, is_add=1) - self.vapi.ip_add_del_route( - dest_addr, dest_addr_len, pg_if.local_ip4n, - table_id=vrf_id, is_multipath=1) + self.vapi.ip_table_add_del(is_add=1, table={'table_id': vrf_id}) self.logger.info("IPv4 VRF ID %d created" % vrf_id) if vrf_id not in self.vrf_list: self.vrf_list.append(vrf_id) @@ -200,8 +210,7 @@ class TestIp4VrfMultiInst(VppTestCase): :param int vrf_id: The FIB table / VRF ID to be reset. """ - # self.vapi.reset_vrf(vrf_id, is_ipv6=0) - self.vapi.reset_fib(vrf_id, is_ipv6=0) + self.vapi.ip_table_flush(table={'table_id': vrf_id}) if vrf_id in self.vrf_list: self.vrf_list.remove(vrf_id) if vrf_id not in self.vrf_reset_list: @@ -216,7 +225,7 @@ class TestIp4VrfMultiInst(VppTestCase): self.logger.info("IPv4 VRF ID %d reset finished" % vrf_id) self.logger.debug(self.vapi.ppcli("show ip fib")) self.logger.debug(self.vapi.ppcli("show ip arp")) - self.vapi.ip_table_add_del(vrf_id, is_add=0) + self.vapi.ip_table_add_del(is_add=0, table={'table_id': vrf_id}) def create_stream(self, src_if, packet_sizes): """ @@ -245,6 +254,38 @@ class TestIp4VrfMultiInst(VppTestCase): % (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) / + IP(src=src_host.ip4, dst=dst_host.ip4) / + 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. @@ -260,7 +301,7 @@ class TestIp4VrfMultiInst(VppTestCase): try: ip = packet[IP] udp = packet[UDP] - payload_info = self.payload_to_info(str(packet[Raw])) + payload_info = self.payload_to_info(packet[Raw]) packet_index = payload_info.index self.assertEqual(payload_info.dst, dst_sw_if_index) self.logger.debug("Got packet on port %s: src=%u (id=%u)" % @@ -295,23 +336,20 @@ class TestIp4VrfMultiInst(VppTestCase): :param int vrf_id: The FIB table / VRF ID to be verified. :return: 1 if the FIB table / VRF ID is configured, otherwise return 0. """ - ip_fib_dump = self.vapi.ip_fib_dump() - vrf_exist = False + ip_fib_dump = self.vapi.ip_route_dump(vrf_id) + vrf_exist = len(ip_fib_dump) vrf_count = 0 for ip_fib_details in ip_fib_dump: - if ip_fib_details.table_id == vrf_id: - if not vrf_exist: - vrf_exist = True - addr = socket.inet_ntoa(ip_fib_details.address) - found = False - for pg_if in self.pg_if_by_vrf_id[vrf_id]: - if found: + addr = ip_fib_details.route.prefix.network_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) == host.ip4: + vrf_count += 1 + found = True break - for host in pg_if.remote_hosts: - if str(addr) == str(host.ip4): - vrf_count += 1 - found = True - break if not vrf_exist and vrf_count == 0: self.logger.info("IPv4 VRF ID %d is not configured" % vrf_id) return VRFState.not_configured @@ -324,16 +362,15 @@ class TestIp4VrfMultiInst(VppTestCase): 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-ip4 interfaces assigned + to VRFs + - no packet received on all pg-ip4 interfaces not assigned to VRFs + + :raise RuntimeError: If no packet captured on pg-ip4 interface assigned + to VRF or if any packet is captured on pg-ip4 interface not + assigned to VRF. """ # Test # Create incoming packet streams for packet-generator interfaces @@ -358,6 +395,34 @@ class TestIp4VrfMultiInst(VppTestCase): else: raise Exception("Unknown interface: %s" % pg_if.name) + def run_crosswise_vrf_test(self): + """ + Create packet streams for every pg-ip4 interface in VRF towards all + pg-ip4 interfaces in other VRFs, send all prepared packet streams and \ + verify that: + - no packet received on all configured pg-ip4 interfaces + + :raise RuntimeError: If any packet is captured on any pg-ip4 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_ipv4_misc) + self.logger.debug("No capture for interface %s" % pg_if.name) + def test_ip4_vrf_01(self): """ IP4 VRF Multi-instance test 1 - create 4 VRFs """ @@ -372,6 +437,7 @@ class TestIp4VrfMultiInst(VppTestCase): # Test 1 self.run_verify_test() + self.run_crosswise_vrf_test() def test_ip4_vrf_02(self): """ IP4 VRF Multi-instance test 2 - reset 2 VRFs @@ -391,6 +457,7 @@ class TestIp4VrfMultiInst(VppTestCase): # Test 2 self.run_verify_test() + self.run_crosswise_vrf_test() def test_ip4_vrf_03(self): """ IP4 VRF Multi-instance 3 - add 2 VRFs @@ -410,6 +477,7 @@ class TestIp4VrfMultiInst(VppTestCase): # Test 3 self.run_verify_test() + self.run_crosswise_vrf_test() def test_ip4_vrf_04(self): """ IP4 VRF Multi-instance test 4 - reset 4 VRFs @@ -430,6 +498,7 @@ class TestIp4VrfMultiInst(VppTestCase): # Test 4 self.run_verify_test() + self.run_crosswise_vrf_test() if __name__ == '__main__':