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#!/usr/bin/env python
import unittest
from framework import VppTestCase, VppTestRunner
from vpp_sub_interface import VppDot1QSubint
from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath, VppMplsRoute, \
VppMplsLabel, VppMplsTable, FibPathProto
import scapy.compat
from scapy.packet import Raw
from scapy.layers.l2 import Ether, Dot1Q
from scapy.layers.inet import IP, UDP
from scapy.layers.inet6 import IPv6
from scapy.contrib.mpls import MPLS
from vpp_papi import VppEnum
from vpp_qos import VppQosRecord, VppQosEgressMap, VppQosMark, VppQosStore
NUM_PKTS = 67
class TestQOS(VppTestCase):
""" QOS Test Case """
# Note: Since the enums aren't created dynamically until after
# the papi client attaches to VPP, we put it in a property to
# ensure it is the value at runtime, not at module load time.
@property
def QOS_SOURCE(self):
return VppEnum.vl_api_qos_source_t
@classmethod
def setUpClass(cls):
super(TestQOS, cls).setUpClass()
@classmethod
def tearDownClass(cls):
super(TestQOS, cls).tearDownClass()
def setUp(self):
super(TestQOS, self).setUp()
self.create_pg_interfaces(range(5))
tbl = VppMplsTable(self, 0)
tbl.add_vpp_config()
for i in self.pg_interfaces:
i.admin_up()
i.config_ip4()
i.resolve_arp()
i.config_ip6()
i.resolve_ndp()
i.enable_mpls()
def tearDown(self):
for i in self.pg_interfaces:
i.unconfig_ip4()
i.unconfig_ip6()
i.disable_mpls()
super(TestQOS, self).tearDown()
def test_qos_ip(self):
""" QoS Mark/Record/Store IP """
#
# for table 1 map the n=0xff possible values of input QoS mark,
# n to 1-n
#
output = [scapy.compat.chb(0)] * 256
for i in range(0, 255):
output[i] = scapy.compat.chb(255 - i)
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
qem1 = VppQosEgressMap(self, 1, rows).add_vpp_config()
#
# For table 2 (and up) use the value n for everything
#
output = [scapy.compat.chb(2)] * 256
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
qem2 = VppQosEgressMap(self, 2, rows).add_vpp_config()
output = [scapy.compat.chb(3)] * 256
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
qem3 = VppQosEgressMap(self, 3, rows).add_vpp_config()
output = [scapy.compat.chb(4)] * 256
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
qem4 = VppQosEgressMap(self, 4, rows).add_vpp_config()
qem5 = VppQosEgressMap(self, 5, rows).add_vpp_config()
qem6 = VppQosEgressMap(self, 6, rows).add_vpp_config()
qem7 = VppQosEgressMap(self, 7, rows).add_vpp_config()
self.assertTrue(qem7.query_vpp_config())
self.logger.info(self.vapi.cli("sh qos eg map"))
#
# Bind interface pgN to table n
#
qm1 = VppQosMark(self, self.pg1, qem1,
self.QOS_SOURCE.QOS_API_SOURCE_IP).add_vpp_config()
qm2 = VppQosMark(self, self.pg2, qem2,
self.QOS_SOURCE.QOS_API_SOURCE_IP).add_vpp_config()
qm3 = VppQosMark(self, self.pg3, qem3,
self.QOS_SOURCE.QOS_API_SOURCE_IP).add_vpp_config()
qm4 = VppQosMark(self, self.pg4, qem4,
self.QOS_SOURCE.QOS_API_SOURCE_IP).add_vpp_config()
self.assertTrue(qm3.query_vpp_config())
self.logger.info(self.vapi.cli("sh qos mark"))
#
# packets ingress on Pg0
#
p_v4 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_v6 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IPv6(src=self.pg0.remote_ip6, dst=self.pg1.remote_ip6,
tc=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
#
# Since we have not yet enabled the recording of the input QoS
# from the input iP header, the egress packet's ToS will be unchanged
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 1)
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 1)
#
# Enable QoS recording on IP input for pg0
#
qr1 = VppQosRecord(self, self.pg0,
self.QOS_SOURCE.QOS_API_SOURCE_IP)
qr1.add_vpp_config()
self.logger.info(self.vapi.cli("sh qos record"))
#
# send the same packets, this time expect the input TOS of 1
# to be mapped to pg1's egress value of 254
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 254)
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 254)
#
# different input ToS to test the mapping
#
p_v4[IP].tos = 127
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 128)
p_v6[IPv6].tc = 127
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 128)
p_v4[IP].tos = 254
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 1)
p_v6[IPv6].tc = 254
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 1)
#
# send packets out the other interfaces to test the maps are
# correctly applied
#
p_v4[IP].dst = self.pg2.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg2)
for p in rx:
self.assertEqual(p[IP].tos, 2)
p_v4[IP].dst = self.pg3.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg3)
for p in rx:
self.assertEqual(p[IP].tos, 3)
p_v6[IPv6].dst = self.pg3.remote_ip6
rx = self.send_and_expect(self.pg0, p_v6 * NUM_PKTS, self.pg3)
for p in rx:
self.assertEqual(p[IPv6].tc, 3)
#
# remove the map on pg2 and pg3, now expect an unchanged IP tos
#
qm2.remove_vpp_config()
qm3.remove_vpp_config()
self.logger.info(self.vapi.cli("sh qos mark"))
self.assertFalse(qm3.query_vpp_config())
self.logger.info(self.vapi.cli("sh int feat pg2"))
p_v4[IP].dst = self.pg2.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg2)
for p in rx:
self.assertEqual(p[IP].tos, 254)
p_v4[IP].dst = self.pg3.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg3)
for p in rx:
self.assertEqual(p[IP].tos, 254)
#
# still mapping out of pg1
#
p_v4[IP].dst = self.pg1.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 1)
#
# disable the input recording on pg0
#
self.assertTrue(qr1.query_vpp_config())
qr1.remove_vpp_config()
#
# back to an unchanged TOS value
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 254)
#
# enable QoS stroe instead of record
#
qst1 = VppQosStore(self, self.pg0,
self.QOS_SOURCE.QOS_API_SOURCE_IP,
5).add_vpp_config()
self.logger.info(self.vapi.cli("sh qos store"))
p_v4[IP].dst = self.pg1.remote_ip4
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 250)
#
# disable the input storing on pg0
#
self.assertTrue(qst1.query_vpp_config())
qst1.remove_vpp_config()
#
# back to an unchanged TOS value
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 254)
#
# disable the egress map on pg1 and pg4
#
qm1.remove_vpp_config()
qm4.remove_vpp_config()
#
# unchanged Tos on pg1
#
rx = self.send_and_expect(self.pg0, p_v4 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 254)
def test_qos_mpls(self):
""" QoS Mark/Record MPLS """
#
# 255 QoS for all input values
#
from_ext = 7
from_ip = 6
from_mpls = 5
from_vlan = 4
output = [scapy.compat.chb(from_ext)] * 256
os1 = b''.join(output)
output = [scapy.compat.chb(from_vlan)] * 256
os2 = b''.join(output)
output = [scapy.compat.chb(from_mpls)] * 256
os3 = b''.join(output)
output = [scapy.compat.chb(from_ip)] * 256
os4 = b''.join(output)
rows = [{'outputs': os1},
{'outputs': os2},
{'outputs': os3},
{'outputs': os4}]
qem1 = VppQosEgressMap(self, 1, rows).add_vpp_config()
#
# a route with 1 MPLS label
#
route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
labels=[32])])
route_10_0_0_1.add_vpp_config()
#
# a route with 3 MPLS labels
#
route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
labels=[63, 33, 34])])
route_10_0_0_3.add_vpp_config()
#
# enable IP QoS recording on the input Pg0 and MPLS egress marking
# on Pg1
#
qr1 = VppQosRecord(self, self.pg0,
self.QOS_SOURCE.QOS_API_SOURCE_IP).add_vpp_config()
qm1 = VppQosMark(self, self.pg1, qem1,
self.QOS_SOURCE.QOS_API_SOURCE_MPLS).add_vpp_config()
#
# packet that will get one label added and 3 labels added resp.
#
p_1 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst="10.0.0.1", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_3 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst="10.0.0.3", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg0, p_1 * NUM_PKTS, self.pg1)
#
# only 3 bits of ToS value in MPLS make sure tos is correct
# and the label and EOS bit have not been corrupted
#
for p in rx:
self.assertEqual(p[MPLS].cos, from_ip)
self.assertEqual(p[MPLS].label, 32)
self.assertEqual(p[MPLS].s, 1)
rx = self.send_and_expect(self.pg0, p_3 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[MPLS].cos, from_ip)
self.assertEqual(p[MPLS].label, 63)
self.assertEqual(p[MPLS].s, 0)
h = p[MPLS].payload
self.assertEqual(h[MPLS].cos, from_ip)
self.assertEqual(h[MPLS].label, 33)
self.assertEqual(h[MPLS].s, 0)
h = h[MPLS].payload
self.assertEqual(h[MPLS].cos, from_ip)
self.assertEqual(h[MPLS].label, 34)
self.assertEqual(h[MPLS].s, 1)
#
# enable MPLS QoS recording on the input Pg0 and IP egress marking
# on Pg1
#
qr2 = VppQosRecord(
self, self.pg0,
self.QOS_SOURCE.QOS_API_SOURCE_MPLS).add_vpp_config()
qm2 = VppQosMark(
self, self.pg1, qem1,
self.QOS_SOURCE.QOS_API_SOURCE_IP).add_vpp_config()
#
# MPLS x-connect - COS according to pg1 map
#
route_32_eos = VppMplsRoute(self, 32, 1,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index,
labels=[VppMplsLabel(33)])])
route_32_eos.add_vpp_config()
p_m1 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
MPLS(label=32, cos=3, ttl=2) /
IP(src=self.pg0.remote_ip4, dst="10.0.0.1", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg0, p_m1 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[MPLS].cos, from_mpls)
self.assertEqual(p[MPLS].label, 33)
self.assertEqual(p[MPLS].s, 1)
#
# MPLS deag - COS is copied from MPLS to IP
#
route_33_eos = VppMplsRoute(self, 33, 1,
[VppRoutePath("0.0.0.0",
0xffffffff,
nh_table_id=0)])
route_33_eos.add_vpp_config()
route_10_0_0_4 = VppIpRoute(self, "10.0.0.4", 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index)])
route_10_0_0_4.add_vpp_config()
p_m2 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
MPLS(label=33, ttl=2, cos=3) /
IP(src=self.pg0.remote_ip4, dst="10.0.0.4", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg0, p_m2 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, from_mpls)
def test_qos_vlan(self):
"""QoS mark/record VLAN """
#
# QoS for all input values
#
output = [scapy.compat.chb(0)] * 256
for i in range(0, 255):
output[i] = scapy.compat.chb(255 - i)
os = b''.join(output)
rows = [{'outputs': os},
{'outputs': os},
{'outputs': os},
{'outputs': os}]
qem1 = VppQosEgressMap(self, 1, rows).add_vpp_config()
sub_if = VppDot1QSubint(self, self.pg0, 11)
sub_if.admin_up()
sub_if.config_ip4()
sub_if.resolve_arp()
sub_if.config_ip6()
sub_if.resolve_ndp()
#
# enable VLAN QoS recording/marking on the input Pg0 subinterface and
#
qr_v = VppQosRecord(
self, sub_if,
self.QOS_SOURCE.QOS_API_SOURCE_VLAN).add_vpp_config()
qm_v = VppQosMark(
self, sub_if, qem1,
self.QOS_SOURCE.QOS_API_SOURCE_VLAN).add_vpp_config()
#
# IP marking/recording on pg1
#
qr_ip = VppQosRecord(
self, self.pg1,
self.QOS_SOURCE.QOS_API_SOURCE_IP).add_vpp_config()
qm_ip = VppQosMark(
self, self.pg1, qem1,
self.QOS_SOURCE.QOS_API_SOURCE_IP).add_vpp_config()
#
# a routes to/from sub-interface
#
route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
[VppRoutePath(sub_if.remote_ip4,
sub_if.sw_if_index)])
route_10_0_0_1.add_vpp_config()
route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
[VppRoutePath(self.pg1.remote_ip4,
self.pg1.sw_if_index)])
route_10_0_0_2.add_vpp_config()
route_2001_1 = VppIpRoute(self, "2001::1", 128,
[VppRoutePath(sub_if.remote_ip6,
sub_if.sw_if_index)])
route_2001_1.add_vpp_config()
route_2001_2 = VppIpRoute(self, "2001::2", 128,
[VppRoutePath(self.pg1.remote_ip6,
self.pg1.sw_if_index)])
route_2001_2.add_vpp_config()
p_v1 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
Dot1Q(vlan=11, prio=1) /
IP(src="1.1.1.1", dst="10.0.0.2", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_v2 = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) /
IP(src="1.1.1.1", dst="10.0.0.1", tos=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_v3 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
Dot1Q(vlan=11, prio=1, id=1) /
IP(src="1.1.1.1", dst="10.0.0.2", tos=2) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg1, p_v2 * NUM_PKTS, self.pg0)
for p in rx:
self.assertEqual(p[Dot1Q].prio, 7)
self.assertEqual(p[Dot1Q].id, 0)
rx = self.send_and_expect(self.pg0, p_v3 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 252)
rx = self.send_and_expect(self.pg0, p_v1 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IP].tos, 253)
p_v1 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
Dot1Q(vlan=11, prio=2) /
IPv6(src="2001::1", dst="2001::2", tc=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
p_v2 = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) /
IPv6(src="3001::1", dst="2001::1", tc=1) /
UDP(sport=1234, dport=1234) /
Raw(scapy.compat.chb(100) * NUM_PKTS))
rx = self.send_and_expect(self.pg1, p_v2 * NUM_PKTS, self.pg0)
for p in rx:
self.assertEqual(p[Dot1Q].prio, 7)
self.assertEqual(p[Dot1Q].id, 0)
rx = self.send_and_expect(self.pg0, p_v1 * NUM_PKTS, self.pg1)
for p in rx:
self.assertEqual(p[IPv6].tc, 251)
#
# cleanup
#
sub_if.unconfig_ip4()
sub_if.unconfig_ip6()
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
|
