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vpp/test/test_udp.py
Neale Ranns 097fa66b98 fib: fib api updates 
Enhance the route add/del APIs to take a set of paths rather than just one.
Most unicast routing protocols calcualte all the available paths in one
run of the algorithm so updating all the paths at once is beneficial for the client.
two knobs control the behaviour:
  is_multipath - if set the the set of paths passed will be added to those
                 that already exist, otherwise the set will replace them.
  is_add - add or remove the set

is_add=0, is_multipath=1 and an empty set, results in deleting the route.

It is also considerably faster to add multiple paths at once, than one at a time:

vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.11
100000 routes in .572240 secs, 174751.80 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.12
100000 routes in .528383 secs, 189256.54 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.13
100000 routes in .757131 secs, 132077.52 routes/sec
vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.14
100000 routes in .878317 secs, 113854.12 routes/sec

vat# ip_route_add_del 1.1.1.1/32 count 100000 multipath via 10.10.10.11 via 10.10.10.12 via 10.10.10.13 via 10.10.10.14
100000 routes in .900212 secs, 111084.93 routes/sec

Change-Id: I416b93f7684745099c1adb0b33edac58c9339c1a
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Signed-off-by: Ole Troan <ot@cisco.com>
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-06-18 13:31:39 +00:00

331 lines
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#!/usr/bin/env python
import unittest
from framework import VppTestCase, VppTestRunner
from vpp_udp_encap import find_udp_encap, VppUdpEncap
from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable, VppMplsLabel, \
FibPathType
from scapy.packet import Raw
from scapy.layers.l2 import Ether
from scapy.layers.inet import IP, UDP
from scapy.layers.inet6 import IPv6
from scapy.contrib.mpls import MPLS
NUM_PKTS = 67
class TestUdpEncap(VppTestCase):
""" UDP Encap Test Case """
@classmethod
def setUpClass(cls):
super(TestUdpEncap, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestUdpEncap, cls).tearDownClass()
def setUp(self):
super(TestUdpEncap, self).setUp()
# create 2 pg interfaces
self.create_pg_interfaces(range(4))
# setup interfaces
# assign them different tables.
table_id = 0
self.tables = []
for i in self.pg_interfaces:
i.admin_up()
if table_id != 0:
tbl = VppIpTable(self, table_id)
tbl.add_vpp_config()
self.tables.append(tbl)
tbl = VppIpTable(self, table_id, is_ip6=1)
tbl.add_vpp_config()
self.tables.append(tbl)
i.set_table_ip4(table_id)
i.set_table_ip6(table_id)
i.config_ip4()
i.resolve_arp()
i.config_ip6()
i.resolve_ndp()
table_id += 1
def tearDown(self):
for i in self.pg_interfaces:
i.unconfig_ip4()
i.unconfig_ip6()
i.ip6_disable()
i.set_table_ip4(0)
i.set_table_ip6(0)
i.admin_down()
super(TestUdpEncap, self).tearDown()
def validate_outer4(self, rx, encap_obj):
self.assertEqual(rx[IP].src, encap_obj.src_ip_s)
self.assertEqual(rx[IP].dst, encap_obj.dst_ip_s)
self.assertEqual(rx[UDP].sport, encap_obj.src_port)
self.assertEqual(rx[UDP].dport, encap_obj.dst_port)
def validate_outer6(self, rx, encap_obj):
self.assertEqual(rx[IPv6].src, encap_obj.src_ip_s)
self.assertEqual(rx[IPv6].dst, encap_obj.dst_ip_s)
self.assertEqual(rx[UDP].sport, encap_obj.src_port)
self.assertEqual(rx[UDP].dport, encap_obj.dst_port)
def validate_inner4(self, rx, tx, ttl=None):
self.assertEqual(rx[IP].src, tx[IP].src)
self.assertEqual(rx[IP].dst, tx[IP].dst)
if ttl:
self.assertEqual(rx[IP].ttl, ttl)
else:
self.assertEqual(rx[IP].ttl, tx[IP].ttl)
def validate_inner6(self, rx, tx):
self.assertEqual(rx.src, tx[IPv6].src)
self.assertEqual(rx.dst, tx[IPv6].dst)
self.assertEqual(rx.hlim, tx[IPv6].hlim)
def test_udp_encap(self):
""" UDP Encap test
"""
#
# construct a UDP encap object through each of the peers
# v4 through the first two peers, v6 through the second.
#
udp_encap_0 = VppUdpEncap(self,
self.pg0.local_ip4,
self.pg0.remote_ip4,
330, 440)
udp_encap_1 = VppUdpEncap(self,
self.pg1.local_ip4,
self.pg1.remote_ip4,
331, 441,
table_id=1)
udp_encap_2 = VppUdpEncap(self,
self.pg2.local_ip6,
self.pg2.remote_ip6,
332, 442,
table_id=2)
udp_encap_3 = VppUdpEncap(self,
self.pg3.local_ip6,
self.pg3.remote_ip6,
333, 443,
table_id=3)
udp_encap_0.add_vpp_config()
udp_encap_1.add_vpp_config()
udp_encap_2.add_vpp_config()
udp_encap_3.add_vpp_config()
self.logger.info(self.vapi.cli("sh udp encap"))
self.assertTrue(find_udp_encap(self, udp_encap_2))
self.assertTrue(find_udp_encap(self, udp_encap_3))
self.assertTrue(find_udp_encap(self, udp_encap_0))
self.assertTrue(find_udp_encap(self, udp_encap_1))
#
# Routes via each UDP encap object - all combinations of v4 and v6.
#
route_4o4 = VppIpRoute(
self, "1.1.0.1", 32,
[VppRoutePath("0.0.0.0",
0xFFFFFFFF,
type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP,
next_hop_id=udp_encap_0.id)])
route_4o6 = VppIpRoute(
self, "1.1.2.1", 32,
[VppRoutePath("0.0.0.0",
0xFFFFFFFF,
type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP,
next_hop_id=udp_encap_2.id)])
route_6o4 = VppIpRoute(
self, "2001::1", 128,
[VppRoutePath("0.0.0.0",
0xFFFFFFFF,
type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP,
next_hop_id=udp_encap_1.id)])
route_6o6 = VppIpRoute(
self, "2001::3", 128,
[VppRoutePath("0.0.0.0",
0xFFFFFFFF,
type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP,
next_hop_id=udp_encap_3.id)])
route_4o6.add_vpp_config()
route_6o6.add_vpp_config()
route_6o4.add_vpp_config()
route_4o4.add_vpp_config()
#
# 4o4 encap
#
p_4o4 = (Ether(src=self.pg0.remote_mac,
dst=self.pg0.local_mac) /
IP(src="2.2.2.2", dst="1.1.0.1") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
rx = self.send_and_expect(self.pg0, p_4o4*NUM_PKTS, self.pg0)
for p in rx:
self.validate_outer4(p, udp_encap_0)
p = IP(p["UDP"].payload.load)
self.validate_inner4(p, p_4o4)
self.assertEqual(udp_encap_0.get_stats()['packets'], NUM_PKTS)
#
# 4o6 encap
#
p_4o6 = (Ether(src=self.pg0.remote_mac,
dst=self.pg0.local_mac) /
IP(src="2.2.2.2", dst="1.1.2.1") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
rx = self.send_and_expect(self.pg0, p_4o6*NUM_PKTS, self.pg2)
for p in rx:
self.validate_outer6(p, udp_encap_2)
p = IP(p["UDP"].payload.load)
self.validate_inner4(p, p_4o6)
self.assertEqual(udp_encap_2.get_stats()['packets'], NUM_PKTS)
#
# 6o4 encap
#
p_6o4 = (Ether(src=self.pg0.remote_mac,
dst=self.pg0.local_mac) /
IPv6(src="2001::100", dst="2001::1") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
rx = self.send_and_expect(self.pg0, p_6o4*NUM_PKTS, self.pg1)
for p in rx:
self.validate_outer4(p, udp_encap_1)
p = IPv6(p["UDP"].payload.load)
self.validate_inner6(p, p_6o4)
self.assertEqual(udp_encap_1.get_stats()['packets'], NUM_PKTS)
#
# 6o6 encap
#
p_6o6 = (Ether(src=self.pg0.remote_mac,
dst=self.pg0.local_mac) /
IPv6(src="2001::100", dst="2001::3") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
rx = self.send_and_expect(self.pg0, p_6o6*NUM_PKTS, self.pg3)
for p in rx:
self.validate_outer6(p, udp_encap_3)
p = IPv6(p["UDP"].payload.load)
self.validate_inner6(p, p_6o6)
self.assertEqual(udp_encap_3.get_stats()['packets'], NUM_PKTS)
#
# A route with an output label
# the TTL of the inner packet is decremented on LSP ingress
#
route_4oMPLSo4 = VppIpRoute(
self, "1.1.2.22", 32,
[VppRoutePath("0.0.0.0",
0xFFFFFFFF,
type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP,
next_hop_id=1,
labels=[VppMplsLabel(66)])])
route_4oMPLSo4.add_vpp_config()
p_4omo4 = (Ether(src=self.pg0.remote_mac,
dst=self.pg0.local_mac) /
IP(src="2.2.2.2", dst="1.1.2.22") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
rx = self.send_and_expect(self.pg0, p_4omo4*NUM_PKTS, self.pg1)
for p in rx:
self.validate_outer4(p, udp_encap_1)
p = MPLS(p["UDP"].payload.load)
self.validate_inner4(p, p_4omo4, ttl=63)
self.assertEqual(udp_encap_1.get_stats()['packets'], 2*NUM_PKTS)
class TestUDP(VppTestCase):
""" UDP Test Case """
@classmethod
def setUpClass(cls):
super(TestUDP, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestUDP, cls).tearDownClass()
def setUp(self):
super(TestUDP, self).setUp()
self.vapi.session_enable_disable(is_enabled=1)
self.create_loopback_interfaces(2)
table_id = 0
for i in self.lo_interfaces:
i.admin_up()
if table_id != 0:
tbl = VppIpTable(self, table_id)
tbl.add_vpp_config()
i.set_table_ip4(table_id)
i.config_ip4()
table_id += 1
# Configure namespaces
self.vapi.app_namespace_add_del(namespace_id="0",
sw_if_index=self.loop0.sw_if_index)
self.vapi.app_namespace_add_del(namespace_id="1",
sw_if_index=self.loop1.sw_if_index)
def tearDown(self):
for i in self.lo_interfaces:
i.unconfig_ip4()
i.set_table_ip4(0)
i.admin_down()
self.vapi.session_enable_disable(is_enabled=0)
super(TestUDP, self).tearDown()
def test_udp_transfer(self):
""" UDP echo client/server transfer """
# Add inter-table routes
ip_t01 = VppIpRoute(self, self.loop1.local_ip4, 32,
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_table_id=1)])
ip_t10 = VppIpRoute(self, self.loop0.local_ip4, 32,
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_table_id=0)], table_id=1)
ip_t01.add_vpp_config()
ip_t10.add_vpp_config()
# Start builtin server and client
uri = "udp://" + self.loop0.local_ip4 + "/1234"
error = self.vapi.cli("test echo server appns 0 fifo-size 4 no-echo" +
"uri " + uri)
if error:
self.logger.critical(error)
self.assertNotIn("failed", error)
error = self.vapi.cli("test echo client mbytes 10 appns 1 " +
"fifo-size 4 no-output test-bytes " +
"syn-timeout 2 no-return uri " + uri)
if error:
self.logger.critical(error)
self.assertNotIn("failed", error)
# Delete inter-table routes
ip_t01.remove_vpp_config()
ip_t10.remove_vpp_config()
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
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