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test_vrf.py
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test_vrf.py
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import sys
import time
import threading
import yaml
import json
import random
import logging
import tempfile
import traceback
from collections import OrderedDict
from natsort import natsorted
from netaddr import IPNetwork
from six.moves import queue
import pytest
from tests.common.fixtures.ptfhost_utils import copy_ptftests_directory # noqa F401
from tests.common.fixtures.ptfhost_utils import change_mac_addresses # noqa F401
from tests.common.storage_backend.backend_utils import skip_test_module_over_backend_topologies # noqa F401
from tests.ptf_runner import ptf_runner
from tests.common.utilities import wait_until
from tests.common.reboot import reboot
from tests.common.helpers.assertions import pytest_assert
"""
During vrf testing, a vrf basic configuration need to be setup before any tests,
and cleanup after all tests. Both of the two tasks should be called only once.
A module-scoped fixture `setup_vrf` is added to accompilsh the setup/cleanup tasks.
We want to use ansible_adhoc/tbinfo fixtures during the setup/cleanup stages, but
1. Injecting fixtures to xunit-style setup/teardown functions is not support by
[now](https://github.com/pytest-dev/pytest/issues/5289).
2. Calling a fixture function directly is deprecated.
So, we prefer a fixture rather than xunit-style setup/teardown functions.
"""
pytestmark = [
pytest.mark.topology('t0')
]
logger = logging.getLogger(__name__)
# global variables
g_vars = {}
PTF_TEST_PORT_MAP = '/root/ptf_test_port_map.json'
PORTCHANNEL_TEMP_NAME = 'PortChannel10{}'
PORTCHANNEL_TEMP_1 = PORTCHANNEL_TEMP_NAME.format(1)
PORTCHANNEL_TEMP_2 = PORTCHANNEL_TEMP_NAME.format(2)
# helper functions
def get_vlan_members(vlan_name, cfg_facts):
tmp_member_list = []
for m in list(cfg_facts['VLAN_MEMBER'].keys()):
v, port = m.split('|')
if vlan_name == v:
tmp_member_list.append(port)
return natsorted(tmp_member_list)
def get_pc_members(portchannel_name, cfg_facts):
tmp_member_list = []
for m in list(cfg_facts['PORTCHANNEL_MEMBER'].keys()):
pc, port = m.split('|')
if portchannel_name == pc:
tmp_member_list.append(port)
return natsorted(tmp_member_list)
def get_intf_ips(interface_name, cfg_facts):
prefix_to_intf_table_map = {
'Vlan': 'VLAN_INTERFACE',
'PortChannel': 'PORTCHANNEL_INTERFACE',
'Ethernet': 'INTERFACE',
'Loopback': 'LOOPBACK_INTERFACE'
}
intf_table_name = None
ip_facts = {
'ipv4': [],
'ipv6': []
}
for pfx, t_name in list(prefix_to_intf_table_map.items()):
if pfx in interface_name:
intf_table_name = t_name
break
if intf_table_name is None:
return ip_facts
for intf in cfg_facts[intf_table_name]:
if '|' in intf:
if_name, ip = intf.split('|')
if if_name == interface_name:
ip = IPNetwork(ip)
if ip.version == 4:
ip_facts['ipv4'].append(ip)
else:
ip_facts['ipv6'].append(ip)
return ip_facts
def get_cfg_facts(duthost):
# return config db contents(running-config)
tmp_facts = json.loads(duthost.shell(
"sonic-cfggen -d --print-data")['stdout'])
port_name_list_sorted = natsorted(list(tmp_facts['PORT'].keys()))
port_index_map = {}
for idx, val in enumerate(port_name_list_sorted):
port_index_map[val] = idx
tmp_facts['config_port_indices'] = port_index_map
return tmp_facts
def get_vrf_intfs(cfg_facts):
intf_tables = ['INTERFACE', 'PORTCHANNEL_INTERFACE',
'VLAN_INTERFACE', 'LOOPBACK_INTERFACE']
vrf_intfs = {}
for table in intf_tables:
for intf, attrs in list(cfg_facts.get(table, {}).items()):
if '|' not in intf:
vrf = attrs['vrf_name']
if vrf not in vrf_intfs:
vrf_intfs[vrf] = {}
vrf_intfs[vrf][intf] = get_intf_ips(intf, cfg_facts)
return vrf_intfs
def get_vrf_ports(cfg_facts):
'''
:return: vrf_member_port_indices, vrf_intf_member_port_indices
'''
vlan_member = list(cfg_facts['VLAN_MEMBER'].keys())
pc_member = list(cfg_facts['PORTCHANNEL_MEMBER'].keys())
member = vlan_member + pc_member
vrf_intf_member_port_indices = {}
vrf_member_port_indices = {}
vrf_intfs = get_vrf_intfs(cfg_facts)
for vrf, intfs in list(vrf_intfs.items()):
vrf_intf_member_port_indices[vrf] = {}
vrf_member_port_indices[vrf] = []
for intf in intfs:
vrf_intf_member_port_indices[vrf][intf] = natsorted(
[cfg_facts['config_port_indices'][m.split('|')[1]] for m in [
m for m in member if intf in m]]
)
vrf_member_port_indices[vrf].extend(
vrf_intf_member_port_indices[vrf][intf])
vrf_member_port_indices[vrf] = natsorted(vrf_member_port_indices[vrf])
return vrf_intf_member_port_indices, vrf_member_port_indices
def ex_ptf_runner(ptf_runner, exc_queue, **kwargs):
'''
With this simple warpper function, we could use a Queue to store the
exception infos and check it later in main thread.
Example:
refer to test 'test_vrf_swss_warm_reboot'
'''
try:
ptf_runner(**kwargs)
except Exception:
exc_queue.put(sys.exc_info())
def finalize_warmboot(duthost, comp_list=None, retry=30, interval=5):
'''
Check if componets finish warmboot(reconciled).
'''
DEFAULT_COMPONENT_LIST = ['orchagent', 'neighsyncd']
EXP_STATE = 'reconciled'
comp_list = comp_list or DEFAULT_COMPONENT_LIST
# wait up to $retry * $interval secs
for _ in range(retry):
for comp in comp_list:
state = duthost.shell('/usr/bin/redis-cli -n 6 hget "WARM_RESTART_TABLE|{}" state'.format(
comp), module_ignore_errors=True)['stdout']
logger.info("{} : {}".format(comp, state))
if EXP_STATE == state:
comp_list.remove(comp)
if len(comp_list) == 0:
break
time.sleep(interval)
logger.info("Slept {} seconds!".format(interval))
return comp_list
def check_interface_status(duthost, up_ports):
intf_facts = duthost.interface_facts(up_ports=up_ports)['ansible_facts']
if len(intf_facts['ansible_interface_link_down_ports']) != 0:
logger.info("Some ports went down: {} ...".format(
intf_facts['ansible_interface_link_down_ports']))
return False
return True
def check_bgp_peer_state(duthost, vrf, peer_ip, expected_state):
peer_info = json.loads(duthost.shell(
"vtysh -c 'show bgp vrf {} neighbors {} json'".format(vrf, peer_ip))['stdout'])
logger.debug("Vrf {} bgp peer {} infos: {}".format(
vrf, peer_ip, peer_info))
try:
peer_state = peer_info[peer_ip].get('bgpState', 'Unknown')
except Exception:
peer_state = 'Unknown'
if peer_state != expected_state:
logger.info("Vrf {} bgp peer {} is {}, exptected {}!".format(
vrf, peer_ip, peer_state, expected_state))
return False
return True
def check_bgp_facts(duthost, cfg_facts):
result = {}
for neigh in cfg_facts['BGP_NEIGHBOR']:
if '|' not in neigh:
vrf = 'default'
peer_ip = neigh
else:
vrf, peer_ip = neigh.split('|')
result[(vrf, peer_ip)] = check_bgp_peer_state(
duthost, vrf, peer_ip, expected_state='Established')
return all(result.values())
def setup_vrf_cfg(duthost, localhost, cfg_facts):
'''
setup vrf configuration on dut before test suite
'''
# FIXME
# For vrf testing, we should create a new vrf topology
# might named to be 't0-vrf', deploy with minigraph templates.
#
# But currently vrf related schema does not properly define in minigraph.
# So we generate and deploy vrf basic configuration with a vrf jinja2 template,
# later should move to minigraph or a better way(VRF and BGP cli).
from copy import deepcopy
cfg_t0 = deepcopy(cfg_facts)
cfg_t0.pop('config_port_indices', None)
# get members from Vlan1000, and move half of them to Vlan2000 in vrf basic cfg
ports = get_vlan_members('Vlan1000', cfg_facts)
vlan_ports = {'Vlan1000': ports[:len(ports)/2],
'Vlan2000': ports[len(ports)/2:]}
extra_vars = {'cfg_t0': cfg_t0,
'vlan_ports': vlan_ports}
duthost.host.options['variable_manager'].extra_vars.update(extra_vars)
duthost.template(src="vrf/vrf_config_db.j2",
dest="/tmp/config_db_vrf.json")
duthost.shell("cp /tmp/config_db_vrf.json /etc/sonic/config_db.json")
reboot(duthost, localhost)
def setup_vlan_peer(duthost, ptfhost, cfg_facts):
'''
setup vlan peer ip addresses on peer port(ptf).
Example:
vid local-port peer-port peer-macvlan-dev peer-namespace peer-ip
Vlan1000 Ethernet1 eth1 e1mv1 ns1000 192.168.0.2/21
FC00:192::2/117
Vlan2000 Ethernet13 eth13 e13mv1 ns2000 192.168.0.2/21
FC00:192::2/117
'''
vlan_peer_ips = {}
vlan_peer_vrf2ns_map = {}
for vlan in list(cfg_facts['VLAN'].keys()):
ns = 'ns' + vlan.strip('Vlan')
vrf = cfg_facts['VLAN_INTERFACE'][vlan]['vrf_name']
vlan_peer_vrf2ns_map[vrf] = ns
vlan_port = get_vlan_members(vlan, cfg_facts)[0]
vlan_peer_port = cfg_facts['config_port_indices'][vlan_port]
# deploy peer namespace on ptf
ptfhost.shell("ip netns add {}".format(ns))
# bind port to namespace
ptfhost.shell("ip link add e{}mv1 link eth{} type macvlan mode bridge".format(
vlan_peer_port, vlan_peer_port))
ptfhost.shell("ip link set e{}mv1 netns {}".format(vlan_peer_port, ns))
ptfhost.shell(
"ip netns exec {} ip link set dev e{}mv1 up".format(ns, vlan_peer_port))
# setup peer ip on ptf
if (vrf, vlan_peer_port) not in vlan_peer_ips:
vlan_peer_ips[(vrf, vlan_peer_port)] = {'ipv4': [], 'ipv6': []}
vlan_ips = get_intf_ips(vlan, cfg_facts)
for ver, ips in list(vlan_ips.items()):
for ip in ips:
neigh_ip = IPNetwork("{}/{}".format(ip.ip+1, ip.prefixlen))
ptfhost.shell("ip netns exec {} ip address add {} dev e{}mv1".format(
ns, neigh_ip, vlan_peer_port))
# ping to trigger neigh resolving
ping_cmd = 'ping' if neigh_ip.version == 4 else 'ping6'
duthost.shell("{} -I {} {} -c 1 -f -W1".format(ping_cmd,
vrf, neigh_ip.ip), module_ignore_errors=True)
vlan_peer_ips[(vrf, vlan_peer_port)][ver].append(neigh_ip)
return vlan_peer_ips, vlan_peer_vrf2ns_map
def cleanup_vlan_peer(ptfhost, vlan_peer_vrf2ns_map):
for vrf, ns in list(vlan_peer_vrf2ns_map.items()):
ptfhost.shell("ip netns del {}".format(ns))
def gen_vrf_fib_file(vrf, tbinfo, ptfhost, render_file, dst_intfs=None,
limited_podset_number=10, limited_tor_number=10):
dst_intfs = dst_intfs if dst_intfs else get_default_vrf_fib_dst_intfs(
vrf, tbinfo)
extra_vars = {
'testbed_type': tbinfo['topo']['name'],
'props': g_vars['props'],
'intf_member_indices': g_vars['vrf_intf_member_port_indices'][vrf],
'dst_intfs': dst_intfs,
'limited_podset_number': limited_podset_number,
'limited_tor_number': limited_tor_number
}
ptfhost.host.options['variable_manager'].extra_vars.update(extra_vars)
ptfhost.template(src="vrf/vrf_fib.j2", dest=render_file)
def get_default_vrf_fib_dst_intfs(vrf, tbinfo):
'''
Get default vrf fib destination interfaces(PortChannels) according to the given vrf.
The test configuration is dynamic and can work with 4 and 8 PCs as the number of VMs.
The first half of PCs are related to Vrf1 and the second to Vrf2.
'''
dst_intfs = []
vms_num = len(tbinfo['topo']['properties']['topology']['VMs'])
if vrf == 'Vrf1':
dst_intfs_range = list(range(1, int(vms_num / 2) + 1))
else:
dst_intfs_range = list(range(int(vms_num / 2) + 1, vms_num + 1))
for intfs_num in dst_intfs_range:
dst_intfs.append(PORTCHANNEL_TEMP_NAME.format(intfs_num))
return dst_intfs
def gen_vrf_neigh_file(vrf, ptfhost, render_file):
extra_vars = {
'intf_member_indices': g_vars['vrf_intf_member_port_indices'][vrf],
'intf_ips': g_vars['vrf_intfs'][vrf]
}
ptfhost.host.options['variable_manager'].extra_vars.update(extra_vars)
ptfhost.template(src="vrf/vrf_neigh.j2", dest=render_file)
def gen_specific_neigh_file(dst_ips, dst_ports, render_file, ptfhost):
dst_ports = [str(port) for port_list in dst_ports for port in port_list]
tmp_file = tempfile.NamedTemporaryFile()
for ip in dst_ips:
tmp_file.write('{} [{}]\n'.format(ip, ' '.join(dst_ports)))
tmp_file.flush()
ptfhost.copy(src=tmp_file.name, dest=render_file)
# For dualtor
def get_dut_enabled_ptf_ports(tbinfo, hostname):
dut_index = str(tbinfo['duts_map'][hostname])
ptf_ports = set(tbinfo['topo']['ptf_map'][dut_index].values())
disabled_ports = set()
if dut_index in tbinfo['topo']['ptf_map_disabled']:
disabled_ports = set(
tbinfo['topo']['ptf_map_disabled'][dut_index].values())
return ptf_ports - disabled_ports
# For dualtor
def get_dut_vlan_ptf_ports(mg_facts):
ports = set()
for vlan in mg_facts['minigraph_vlans']:
for member in mg_facts['minigraph_vlans'][vlan]['members']:
ports.add(mg_facts['minigraph_port_indices'][member])
return ports
def check_vlan_members(duthost, member1, member2, exp_count):
out1 = duthost.shell(
"redis-cli -n 6 keys 'VLAN_MEMBER_TABLE|*|{}' | wc -l".format(member1))['stdout']
out2 = duthost.shell(
"redis-cli -n 6 keys 'VLAN_MEMBER_TABLE|*|{}' | wc -l".format(member2))['stdout']
added = int(out1) + int(out2)
if added >= exp_count * 2:
logger.info('All vlan members added')
return True
logger.info('Not all vlan members are added, {} when expected => {}'.format(
added, (exp_count * 2)))
return False
# fixtures
@pytest.fixture(scope="module")
def dut_facts(duthosts, rand_one_dut_hostname):
duthost = duthosts[rand_one_dut_hostname]
return duthost.facts
@pytest.fixture(scope="module")
def cfg_facts(duthosts, rand_one_dut_hostname):
duthost = duthosts[rand_one_dut_hostname]
return get_cfg_facts(duthost)
def restore_config_db(localhost, duthost, ptfhost):
# In case something went wrong in previous reboot, wait until the DUT is accessible to ensure that
# the `mv /etc/sonic/config_db.json.bak /etc/sonic/config_db.json` is executed on DUT.
# If the DUT is still inaccessible after timeout, we may have already lose the DUT. Something sad happened.
localhost.wait_for(host=g_vars["dut_ip"],
port=22,
state='started',
search_regex='OpenSSH_[\\w\\.]+ Debian',
timeout=180) # Similiar approach to increase the chance that the next line get executed.
duthost.shell("mv /etc/sonic/config_db.json.bak /etc/sonic/config_db.json")
reboot(duthost, localhost)
if 'vlan_peer_vrf2ns_map' in g_vars:
cleanup_vlan_peer(ptfhost, g_vars['vlan_peer_vrf2ns_map'])
@pytest.fixture(scope="module", autouse=True)
def setup_vrf(tbinfo, duthosts, rand_one_dut_hostname, ptfhost, localhost,
skip_test_module_over_backend_topologies): # noqa F811
duthost = duthosts[rand_one_dut_hostname]
# backup config_db.json
duthost.shell("mv /etc/sonic/config_db.json /etc/sonic/config_db.json.bak")
# Setup global variables
global g_vars
try:
# Setup dut
g_vars["dut_ip"] = duthost.host.options["inventory_manager"].get_host(
duthost.hostname).vars["ansible_host"]
# Don't care about 'pmon' and 'lldp' here
duthost.critical_services = [
"swss", "syncd", "database", "teamd", "bgp"]
cfg_t0 = get_cfg_facts(duthost) # generate cfg_facts for t0 topo
setup_vrf_cfg(duthost, localhost, cfg_t0)
# Generate cfg_facts for t0-vrf topo, should not use cfg_facts fixture here. Otherwise, the cfg_facts
# fixture will be executed before setup_vrf and will have the original non-VRF config facts.
cfg_facts = get_cfg_facts(duthost)
duthost.shell("sonic-clear arp")
duthost.shell("sonic-clear nd")
duthost.shell("sonic-clear fdb all")
with open("../ansible/vars/topo_{}.yml".format(tbinfo['topo']['name']), 'r') as fh:
g_vars['topo_properties'] = yaml.safe_load(fh)
g_vars['props'] = g_vars['topo_properties']['configuration_properties']['common']
g_vars['vlan_peer_ips'], g_vars['vlan_peer_vrf2ns_map'] = setup_vlan_peer(
duthost, ptfhost, cfg_facts)
g_vars['vrf_intfs'] = get_vrf_intfs(cfg_facts)
g_vars['vrf_intf_member_port_indices'], g_vars['vrf_member_port_indices'] = get_vrf_ports(
cfg_facts)
except Exception as e:
# Ensure that config_db is restored.
# If exception is raised in setup, the teardown code won't be executed. That's why we need to capture
# exception and do cleanup here in setup part (code before 'yield').
logger.error("Exception raised in setup: {}".format(repr(e)))
logger.error(json.dumps(
traceback.format_exception(*sys.exc_info()), indent=2))
restore_config_db(localhost, duthost, ptfhost)
# Setup failed. There is no point to continue running the cases.
# If this line is hit, script execution will stop here
pytest.fail("VRF testing setup failed")
# --------------------- Testing -----------------------
yield
# --------------------- Teardown -----------------------
restore_config_db(localhost, duthost, ptfhost)
@pytest.fixture
def partial_ptf_runner(request, ptfhost, tbinfo):
def _partial_ptf_runner(testname, **kwargs):
params = {'testbed_type': tbinfo['topo']['name'],
'ptf_test_port_map': PTF_TEST_PORT_MAP
}
params.update(kwargs)
ptf_runner(host=ptfhost,
testdir="ptftests",
platform_dir="ptftests",
testname=testname,
params=params,
socket_recv_size=16384,
log_file="/tmp/{}.{}.log".format(request.cls.__name__, request.function.__name__),
is_python3=True)
return _partial_ptf_runner
@pytest.fixture(scope="module")
def mg_facts(duthosts, rand_one_dut_hostname, tbinfo):
duthost = duthosts[rand_one_dut_hostname]
mg_facts = duthost.get_extended_minigraph_facts(tbinfo)
return mg_facts
# For dualtor
@pytest.fixture(scope='module')
def vlan_mac(duthosts, rand_one_dut_hostname):
duthost = duthosts[rand_one_dut_hostname]
config_facts = duthost.config_facts(
host=duthost.hostname, source='running')['ansible_facts']
dut_vlan_mac = None
for vlan in list(config_facts.get('VLAN', {}).values()):
if 'mac' in vlan:
logger.debug('Found VLAN mac')
dut_vlan_mac = vlan['mac']
break
if not dut_vlan_mac:
logger.debug('No VLAN mac, use default router_mac')
dut_vlan_mac = duthost.facts['router_mac']
return dut_vlan_mac
@pytest.fixture(scope="module", autouse=True)
def ptf_test_port_map(tbinfo, duthosts, mg_facts, ptfhost, rand_one_dut_hostname, vlan_mac):
duthost = duthosts[rand_one_dut_hostname]
ptf_test_port_map = {}
enabled_ptf_ports = get_dut_enabled_ptf_ports(tbinfo, duthost.hostname)
vlan_ptf_ports = get_dut_vlan_ptf_ports(mg_facts)
for port in enabled_ptf_ports:
if port in vlan_ptf_ports:
target_mac = vlan_mac
else:
target_mac = duthost.facts['router_mac']
ptf_test_port_map[str(port)] = {
'target_dut': 0,
'target_dest_mac': target_mac,
'target_src_mac': duthost.facts['router_mac']
}
ptfhost.copy(content=json.dumps(ptf_test_port_map), dest=PTF_TEST_PORT_MAP)
@pytest.fixture()
def disable_swss_warm_boot_flag(duthosts, rand_one_dut_hostname):
yield
duthost = duthosts[rand_one_dut_hostname]
swss_flag = duthost.shell(
"sonic-db-cli STATE_DB HGET 'WARM_RESTART_ENABLE_TABLE|swss' 'enable'")['stdout']
if swss_flag == 'true':
duthost.shell("config warm_restart disable swss")
# tests
class TestVrfCreateAndBind():
def test_vrf_in_kernel(self, duthosts, rand_one_dut_hostname, cfg_facts):
duthost = duthosts[rand_one_dut_hostname]
# verify vrf in kernel
res = duthost.shell("ip link show type vrf | grep Vrf")
for vrf in list(cfg_facts['VRF'].keys()):
assert vrf in res['stdout'], "%s should be created in kernel!" % vrf
for vrf, intfs in list(g_vars['vrf_intfs'].items()):
for intf in intfs:
res = duthost.shell("ip link show %s" % intf)
assert vrf in res['stdout'], "The master dev of interface %s should be %s !" % (
intf, vrf)
def test_vrf_in_appl_db(self, duthosts, rand_one_dut_hostname, cfg_facts):
duthost = duthosts[rand_one_dut_hostname]
# verify vrf in app_db
for vrf in list(cfg_facts['VRF'].keys()):
res = duthost.shell("redis-cli -n 0 keys VRF_TABLE:%s" % vrf)
assert vrf in res['stdout'], "%s should be added in APPL_DB!" % vrf
for vrf, intfs in list(g_vars['vrf_intfs'].items()):
for intf in intfs:
res = duthost.shell(
"redis-cli -n 0 hgetall \"INTF_TABLE:%s\"" % intf)
assert vrf in res['stdout'], "The vrf of interface %s should be %s !" % (
intf, vrf)
def test_vrf_in_asic_db(self, duthosts, rand_one_dut_hostname, cfg_facts):
duthost = duthosts[rand_one_dut_hostname]
# verify vrf in asic_db
# plus default virtual router
vrf_count = len(list(cfg_facts['VRF'].keys())) + 1
res = duthost.shell("redis-cli -n 1 keys *VIRTUAL_ROUTER*")
assert len(res['stdout_lines']) == vrf_count
class TestVrfNeigh():
def test_ping_lag_neigh(self, duthosts, rand_one_dut_hostname, cfg_facts):
duthost = duthosts[rand_one_dut_hostname]
for neigh in cfg_facts['BGP_NEIGHBOR']:
if '|' not in neigh:
continue
vrf, neigh_ip = neigh.split('|')
if IPNetwork(neigh_ip).version == 4:
ping_cmd = 'ping'
else:
ping_cmd = 'ping6'
cmd = "{} {} -I {} -c 3 -f".format(ping_cmd, neigh_ip, vrf)
duthost.shell(cmd)
def test_ping_vlan_neigh(self, duthosts, rand_one_dut_hostname):
duthost = duthosts[rand_one_dut_hostname]
for (vrf, _), neigh_ips in list(g_vars['vlan_peer_ips'].items()):
for ver, ips in list(neigh_ips.items()):
ping_cmd = 'ping' if ver == 'ipv4' else 'ping6'
for ip in ips:
duthost.shell(
"{} {} -c 3 -I {} -f".format(ping_cmd, ip.ip, vrf))
def test_vrf1_neigh_ip_fwd(self, ptfhost, partial_ptf_runner):
gen_vrf_neigh_file('Vrf1', ptfhost, render_file="/tmp/vrf1_neigh.txt")
partial_ptf_runner(
testname="vrf_test.FwdTest",
fib_info_files=["/tmp/vrf1_neigh.txt"],
src_ports=g_vars['vrf_member_port_indices']['Vrf1']
)
def test_vrf2_neigh_ip_fwd(self, ptfhost, partial_ptf_runner):
gen_vrf_neigh_file('Vrf2', ptfhost, render_file="/tmp/vrf2_neigh.txt")
partial_ptf_runner(
testname="vrf_test.FwdTest",
fib_info_files=["/tmp/vrf2_neigh.txt"],
src_ports=g_vars['vrf_member_port_indices']['Vrf2']
)
class TestVrfFib():
@pytest.fixture(scope="class", autouse=True)
def setup_fib_test(self, ptfhost, tbinfo):
gen_vrf_fib_file('Vrf1', tbinfo, ptfhost,
render_file='/tmp/vrf1_fib.txt')
gen_vrf_fib_file('Vrf2', tbinfo, ptfhost,
render_file='/tmp/vrf2_fib.txt')
def test_show_bgp_summary(self, duthosts, rand_one_dut_hostname, cfg_facts):
duthost = duthosts[rand_one_dut_hostname]
props = g_vars['props']
route_count = props['podset_number'] * \
props['tor_number'] * props['tor_subnet_number']
for vrf in cfg_facts['VRF']:
bgp_summary_string = duthost.shell(
"vtysh -c 'show bgp vrf {} summary json'".format(vrf))['stdout']
bgp_summary = json.loads(bgp_summary_string)
for info in bgp_summary:
for peer, attr in list(bgp_summary[info]['peers'].items()):
prefix_count = attr['pfxRcd']
# skip ipv6 peers under 'ipv4Unicast' and compare only ipv4 peers under 'ipv4Unicast',
# and ipv6 peers under 'ipv6Unicast'
if info == "ipv4Unicast" and attr['idType'] == 'ipv6':
continue
else:
assert int(prefix_count) == route_count, "%s should received %s route prefixs!" % (
peer, route_count)
def test_vrf1_fib(self, partial_ptf_runner):
partial_ptf_runner(
testname="vrf_test.FibTest",
fib_info_files=["/tmp/vrf1_fib.txt"],
src_ports=g_vars['vrf_member_port_indices']['Vrf1']
)
def test_vrf2_fib(self, partial_ptf_runner):
partial_ptf_runner(
testname="vrf_test.FibTest",
fib_info_files=["/tmp/vrf2_fib.txt"],
src_ports=g_vars['vrf_member_port_indices']['Vrf2']
)
class TestVrfIsolation():
@pytest.fixture(scope="class", autouse=True)
def setup_vrf_isolation(self, ptfhost, tbinfo):
gen_vrf_fib_file('Vrf1', tbinfo, ptfhost,
render_file='/tmp/vrf1_fib.txt')
gen_vrf_fib_file('Vrf2', tbinfo, ptfhost,
render_file='/tmp/vrf2_fib.txt')
gen_vrf_neigh_file('Vrf1', ptfhost, render_file="/tmp/vrf1_neigh.txt")
gen_vrf_neigh_file('Vrf2', ptfhost, render_file="/tmp/vrf2_neigh.txt")
def test_neigh_isolate_vrf1_from_vrf2(self, partial_ptf_runner):
# send packets from Vrf1
partial_ptf_runner(
testname="vrf_test.FwdTest",
fib_info_files=["/tmp/vrf2_neigh.txt"],
pkt_action='drop',
src_ports=g_vars['vrf_intf_member_port_indices']['Vrf1']['Vlan1000']
)
def test_neigh_isolate_vrf2_from_vrf1(self, partial_ptf_runner):
# send packets from Vrf2
partial_ptf_runner(
testname="vrf_test.FwdTest",
fib_info_files=["/tmp/vrf1_neigh.txt"],
pkt_action='drop',
src_ports=g_vars['vrf_intf_member_port_indices']['Vrf2']['Vlan2000']
)
def test_fib_isolate_vrf1_from_vrf2(self, partial_ptf_runner):
# send packets from Vrf1
partial_ptf_runner(
testname="vrf_test.FibTest",
fib_info_files=["/tmp/vrf2_fib.txt"],
pkt_action='drop',
src_ports=g_vars['vrf_intf_member_port_indices']['Vrf1']['Vlan1000']
)
def test_fib_isolate_vrf2_from_vrf1(self, partial_ptf_runner):
# send packets from Vrf2
partial_ptf_runner(
testname="vrf_test.FibTest",
fib_info_files=["/tmp/vrf1_fib.txt"],
pkt_action='drop',
src_ports=g_vars['vrf_intf_member_port_indices']['Vrf2']['Vlan2000']
)
class TestVrfAclRedirect():
c_vars = {}
@pytest.fixture(scope="class", autouse=True)
def is_redirect_supported(self, duthosts, rand_one_dut_hostname):
"""
Check if switch supports acl redirect_action, if not then skip test cases
"""
duthost = duthosts[rand_one_dut_hostname]
acl_stage_cap = duthost.shell(
'redis-cli -n 6 hget "ACL_STAGE_CAPABILITY_TABLE|INGRESS" action_list')['stdout']
if "REDIRECT_ACTION" not in acl_stage_cap:
pytest.skip("Switch does not support ACL REDIRECT_ACTION, supported actions {}".format(
acl_stage_cap))
@pytest.fixture(scope="class", autouse=True)
def setup_acl_redirect(self, duthosts, rand_one_dut_hostname, cfg_facts, tbinfo):
duthost = duthosts[rand_one_dut_hostname]
# -------- Setup ----------
# make sure neighs from Vlan2000 are resolved
vlan_peer_port = g_vars['vrf_intf_member_port_indices']['Vrf2']['Vlan2000'][0]
vlan_neigh_ip = g_vars['vlan_peer_ips'][(
'Vrf2', vlan_peer_port)]['ipv4'][0]
duthost.shell("ping {} -I {} -c 3 -f".format(vlan_neigh_ip.ip, 'Vrf2'))
vrf_intf_ports = g_vars['vrf_intf_member_port_indices']
src_ports = [vrf_intf_ports['Vrf1']['Vlan1000'][0]]
dst_ports = [vrf_intf_ports['Vrf1'][PORTCHANNEL_TEMP_1]]
pc1_intf_ips = get_intf_ips(PORTCHANNEL_TEMP_1, cfg_facts)
pc1_v4_neigh_ips = [str(ip.ip+1) for ip in pc1_intf_ips['ipv4']]
pc1_v6_neigh_ips = [str(ip.ip+1) for ip in pc1_intf_ips['ipv6']]
pc2_if_ips = get_intf_ips(PORTCHANNEL_TEMP_2, cfg_facts)
pc2_v4_neigh_ips = [(PORTCHANNEL_TEMP_2, str(ip.ip+1))
for ip in pc2_if_ips['ipv4']]
pc2_v6_neigh_ips = [(PORTCHANNEL_TEMP_2, str(ip.ip+1))
for ip in pc2_if_ips['ipv6']]
pc_vrf2_if_name = PORTCHANNEL_TEMP_NAME.format(
len(tbinfo['topo']['properties']['topology']['VMs']))
pc_vrf2_if_ips = get_intf_ips(pc_vrf2_if_name, cfg_facts)
pc_vrf2_v4_neigh_ips = [(pc_vrf2_if_name, str(ip.ip+1))
for ip in pc_vrf2_if_ips['ipv4']]
pc_vrf2_v6_neigh_ips = [(pc_vrf2_if_name, str(ip.ip+1))
for ip in pc_vrf2_if_ips['ipv6']]
redirect_dst_ips = pc2_v4_neigh_ips + pc_vrf2_v4_neigh_ips
redirect_dst_ipv6s = pc2_v6_neigh_ips + pc_vrf2_v6_neigh_ips
redirect_dst_ports = []
redirect_dst_ports.append(vrf_intf_ports['Vrf1'][PORTCHANNEL_TEMP_2])
redirect_dst_ports.append(vrf_intf_ports['Vrf2'][pc_vrf2_if_name])
self.c_vars['src_ports'] = src_ports
self.c_vars['dst_ports'] = dst_ports
self.c_vars['redirect_dst_ports'] = redirect_dst_ports
self.c_vars['pc1_v4_neigh_ips'] = pc1_v4_neigh_ips
self.c_vars['pc1_v6_neigh_ips'] = pc1_v6_neigh_ips
# load acl redirect configuration
extra_vars = {
'src_port': get_vlan_members('Vlan1000', cfg_facts)[0],
'redirect_dst_ips': redirect_dst_ips,
'redirect_dst_ipv6s': redirect_dst_ipv6s
}
duthost.host.options['variable_manager'].extra_vars.update(extra_vars)
duthost.template(src="vrf/vrf_acl_redirect.j2",
dest="/tmp/vrf_acl_redirect.json")
duthost.shell("config load -y /tmp/vrf_acl_redirect.json")
# -------- Testing ----------
yield
# -------- Teardown ----------
duthost.shell(
"redis-cli -n 4 del 'ACL_RULE|VRF_ACL_REDIRECT_V4|rule1'")
duthost.shell(
"redis-cli -n 4 del 'ACL_RULE|VRF_ACL_REDIRECT_V6|rule1'")
duthost.shell("redis-cli -n 4 del 'ACL_TABLE|VRF_ACL_REDIRECT_V4'")
duthost.shell("redis-cli -n 4 del 'ACL_TABLE|VRF_ACL_REDIRECT_V6'")
def test_origin_ports_recv_no_pkts_v4(self, partial_ptf_runner, ptfhost):
# verify origin dst ports should not receive packets any more
gen_specific_neigh_file(self.c_vars['pc1_v4_neigh_ips'], self.c_vars['dst_ports'],
'/tmp/pc01_neigh_ipv4.txt', ptfhost)
partial_ptf_runner(
testname="vrf_test.FwdTest",
pkt_action='drop',
src_ports=self.c_vars['src_ports'],
fib_info_files=['/tmp/pc01_neigh_ipv4.txt']
)
def test_origin_ports_recv_no_pkts_v6(self, partial_ptf_runner, ptfhost):
# verify origin dst ports should not receive packets any more
gen_specific_neigh_file(self.c_vars['pc1_v6_neigh_ips'], self.c_vars['dst_ports'],
'/tmp/pc01_neigh_ipv6.txt', ptfhost)
partial_ptf_runner(
testname="vrf_test.FwdTest",
pkt_action='drop',
src_ports=self.c_vars['src_ports'],
fib_info_files=['/tmp/pc01_neigh_ipv6.txt']
)
def test_redirect_to_new_ports_v4(self, partial_ptf_runner, ptfhost):
# verify redicect ports should receive packets
gen_specific_neigh_file(self.c_vars['pc1_v4_neigh_ips'], self.c_vars['redirect_dst_ports'],
'/tmp/redirect_pc01_neigh_ipv4.txt', ptfhost)
partial_ptf_runner(
testname="vrf_test.FwdTest",
src_ports=self.c_vars['src_ports'],
test_balancing=True,
balancing_test_times=1000,
balancing_test_ratio=1.0, # test redirect balancing
fib_info_files=['/tmp/redirect_pc01_neigh_ipv4.txt']
)
def test_redirect_to_new_ports_v6(self, partial_ptf_runner, ptfhost):
# verify redicect ports should receive packets
gen_specific_neigh_file(self.c_vars['pc1_v6_neigh_ips'], self.c_vars['redirect_dst_ports'],
'/tmp/redirect_pc01_neigh_ipv6.txt', ptfhost)
partial_ptf_runner(
testname="vrf_test.FwdTest",
src_ports=self.c_vars['src_ports'],
test_balancing=True,
balancing_test_times=1000,
balancing_test_ratio=1.0, # test redirect balancing
fib_info_files=['/tmp/redirect_pc01_neigh_ipv6.txt']
)
class TestVrfLoopbackIntf():
c_vars = {}
announce_prefix = '10.10.10.0/26'
@pytest.fixture(scope="class", autouse=True)
def setup_vrf_loopback(self, duthosts, rand_one_dut_hostname, ptfhost, cfg_facts, tbinfo):
duthost = duthosts[rand_one_dut_hostname]
# -------- Setup ----------
lb0_ip_facts = get_intf_ips('Loopback0', cfg_facts)
vlan1000_ip_facts = get_intf_ips('Vlan1000', cfg_facts)
lb2_ip_facts = get_intf_ips('Loopback2', cfg_facts)
vlan2000_ip_facts = get_intf_ips('Vlan2000', cfg_facts)
self.c_vars['lb0_ip_facts'] = lb0_ip_facts
self.c_vars['lb2_ip_facts'] = lb2_ip_facts
self.c_vars['vlan1000_ip_facts'] = vlan1000_ip_facts
self.c_vars['vlan2000_ip_facts'] = vlan2000_ip_facts
# deploy routes to loopback
for ver, ips in list(lb0_ip_facts.items()):
for vlan_ip in vlan1000_ip_facts[ver]:
nexthop = vlan_ip.ip
break
for ip in ips:
ptfhost.shell("ip netns exec {} ip route add {} nexthop via {} ".format(
g_vars['vlan_peer_vrf2ns_map']['Vrf1'], ip, nexthop))
for ver, ips in list(lb2_ip_facts.items()):
for vlan_ip in vlan2000_ip_facts[ver]:
nexthop = vlan_ip.ip
break
for ip in ips:
ptfhost.shell("ip netns exec {} ip route add {} nexthop via {} ".format(
g_vars['vlan_peer_vrf2ns_map']['Vrf2'], ip, nexthop))
duthost.shell("sysctl -w net.ipv6.ip_nonlocal_bind=1")
# -------- Testing ----------
yield
# -------- Teardown ----------
# routes on ptf could be flushed when remove vrfs
duthost.shell("sysctl -w net.ipv6.ip_nonlocal_bind=0")
def test_ping_vrf1_loopback(self, ptfhost, duthosts, rand_one_dut_hostname):
duthost = duthosts[rand_one_dut_hostname]
for ver, ips in list(self.c_vars['lb0_ip_facts'].items()):
for ip in ips:
if ip.version == 4:
# FIXME Within a vrf, currently ping(4) does not support using
# an ip of loopback intface as source(it complains 'Cannot assign
# requested address'). An alternative is ping the loopback address
# from ptf
ptfhost.shell("ip netns exec {} ping {} -c 3 -f -W2".format(
g_vars['vlan_peer_vrf2ns_map']['Vrf1'], ip.ip))
else:
neigh_ip6 = self.c_vars['vlan1000_ip_facts']['ipv6'][0].ip + 1
duthost.shell(
"ping6 {} -I Vrf1 -I {} -c 3 -f -W2".format(neigh_ip6, ip.ip))
def test_ping_vrf2_loopback(self, ptfhost, duthosts, rand_one_dut_hostname):
duthost = duthosts[rand_one_dut_hostname]
for ver, ips in list(self.c_vars['lb2_ip_facts'].items()):
for ip in ips:
if ip.version == 4:
# FIXME Within a vrf, currently ping(4) does not support using
# an ip of loopback intface as source(it complains 'Cannot assign
# requested address'). An alternative is ping the loopback address
# from ptf
ptfhost.shell("ip netns exec {} ping {} -c 3 -f -W2".format(
g_vars['vlan_peer_vrf2ns_map']['Vrf2'], ip.ip))
else: