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import socket
from scapy.layers.inet import IP, UDP, ICMP
from scapy.layers.inet6 import IPv6
from scapy.layers.l2 import Ether, GRE
from scapy.packet import Raw
from framework import VppTestCase
from util import ppp
from vpp_ip_route import VppIpInterfaceAddress, VppIpRoute, VppRoutePath
from vpp_neighbor import VppNeighbor
""" TestPing is a subclass of VPPTestCase classes.
Basic test for sanity check of the ping.
"""
class TestPing(VppTestCase):
"""Ping Test Case"""
@classmethod
def setUpClass(cls):
super(TestPing, cls).setUpClass()
try:
cls.create_pg_interfaces(range(2))
cls.interfaces = list(cls.pg_interfaces)
for i in cls.interfaces:
i.admin_up()
i.config_ip4()
i.config_ip6()
i.disable_ipv6_ra()
i.resolve_arp()
i.resolve_ndp()
except Exception:
super(TestPing, cls).tearDownClass()
raise
@classmethod
def tearDownClass(cls):
super(TestPing, cls).tearDownClass()
def tearDown(self):
super(TestPing, self).tearDown()
def show_commands_at_teardown(self):
self.logger.info(self.vapi.cli("show hardware"))
def verify_ping_request(self, p, src, dst, seq):
ip = p[IP]
self.assertEqual(ip.version, 4)
self.assertEqual(ip.flags, 0)
self.assertEqual(ip.src, src)
self.assertEqual(ip.dst, dst)
self.assertEqual(ip.proto, 1)
self.assertEqual(len(ip.options), 0)
self.assertGreaterEqual(ip.ttl, 254)
icmp = p[ICMP]
self.assertEqual(icmp.type, 8)
self.assertEqual(icmp.code, 0)
self.assertEqual(icmp.seq, seq)
return icmp
def test_ping_basic(self):
"""basic ping test"""
try:
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.logger.info(self.vapi.cli("show ip4 neighbors"))
self.logger.info(self.vapi.cli("show ip6 neighbors"))
remote_ip4 = self.pg1.remote_ip4
ping_cmd = "ping " + remote_ip4 + " interval 0.01 repeat 10"
ret = self.vapi.cli(ping_cmd)
self.logger.info(ret)
out = self.pg1.get_capture(10)
icmp_id = None
icmp_seq = 1
for p in out:
icmp = self.verify_ping_request(
p, self.pg1.local_ip4, self.pg1.remote_ip4, icmp_seq
)
icmp_seq = icmp_seq + 1
if icmp_id is None:
icmp_id = icmp.id
else:
self.assertEqual(icmp.id, icmp_id)
finally:
self.vapi.cli("show error")
def test_ping_burst(self):
"""burst ping test"""
try:
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.logger.info(self.vapi.cli("show ip neighbors"))
remote_ip4 = self.pg1.remote_ip4
ping_cmd = "ping " + remote_ip4 + " interval 0.01 burst 3"
ret = self.vapi.cli(ping_cmd)
self.logger.info(ret)
out = self.pg1.get_capture(3 * 5)
icmp_id = None
icmp_seq = 1
count = 0
for p in out:
icmp = self.verify_ping_request(
p, self.pg1.local_ip4, self.pg1.remote_ip4, icmp_seq
)
count = count + 1
if count >= 3:
icmp_seq = icmp_seq + 1
count = 0
if icmp_id is None:
icmp_id = icmp.id
else:
self.assertEqual(icmp.id, icmp_id)
finally:
self.vapi.cli("show error")
def test_ping_src(self):
"""ping with source address set"""
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.logger.info(self.vapi.cli("show ip4 neighbors"))
self.logger.info(self.vapi.cli("show ip6 neighbors"))
nbr_addr = "10.0.0.2"
VppIpInterfaceAddress(self, self.pg1, "10.0.0.1", 24).add_vpp_config()
VppNeighbor(
self, self.pg1.sw_if_index, "00:11:22:33:44:55", nbr_addr
).add_vpp_config()
ping_cmd = "ping %s interval 0.01 repeat 3" % self.pg1.remote_ip4
ret = self.vapi.cli(ping_cmd)
out = self.pg1.get_capture(3)
icmp_seq = 1
for p in out:
icmp = self.verify_ping_request(
p, self.pg1.local_ip4, self.pg1.remote_ip4, icmp_seq
)
icmp_seq = icmp_seq + 1
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
ping_cmd = "ping %s interval 0.01 repeat 3" % nbr_addr
ret = self.vapi.cli(ping_cmd)
out = self.pg1.get_capture(3)
icmp_seq = 1
for p in out:
icmp = self.verify_ping_request(p, "10.0.0.1", nbr_addr, icmp_seq)
icmp_seq = icmp_seq + 1
def test_ping_fib_routed_dst(self):
"""ping destination routed according to FIB table"""
try:
self.pg1.generate_remote_hosts(1)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
routed_dst = "10.0.2.0"
self.logger.info(self.vapi.cli("show ip4 neighbors"))
VppIpRoute(
self,
routed_dst,
24,
[VppRoutePath(self.pg1.remote_hosts[0].ip4, self.pg1.sw_if_index)],
).add_vpp_config()
ping_cmd = "ping %s interval 0.01 repeat 3" % routed_dst
ret = self.vapi.cli(ping_cmd)
self.logger.info(ret)
out = self.pg1.get_capture(3)
icmp_seq = 1
for p in out:
self.verify_ping_request(p, self.pg1.local_ip4, routed_dst, icmp_seq)
icmp_seq = icmp_seq + 1
finally:
self.vapi.cli("show error")
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