| #!/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)) |
| |
| rx = self.send_and_expect(self.pg1, p_v2 * NUM_PKTS, self.pg0) |
| |
| for p in rx: |
| self.assertEqual(p[Dot1Q].prio, 6) |
| |
| rx = self.send_and_expect(self.pg0, p_v1 * NUM_PKTS, self.pg1) |
| |
| for p in rx: |
| self.assertEqual(p[IP].tos, 254) |
| |
| 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, 6) |
| |
| rx = self.send_and_expect(self.pg0, p_v1 * NUM_PKTS, self.pg1) |
| |
| for p in rx: |
| self.assertEqual(p[IPv6].tc, 253) |
| |
| # |
| # cleanup |
| # |
| sub_if.unconfig_ip4() |
| sub_if.unconfig_ip6() |
| |
| |
| if __name__ == '__main__': |
| unittest.main(testRunner=VppTestRunner) |