X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_classifier.py;h=9f0fdbf587ab3fbc88bd7e68d4cc3d45c3b1e284;hb=7fc0ee7f6;hp=ade96737e42d9b60676cc85668d9439a0d8ebe19;hpb=059d1d0e01a59769d2c3f3f978f50120d64a6976;p=vpp.git diff --git a/test/test_classifier.py b/test/test_classifier.py index ade96737e42..9f0fdbf587a 100644 --- a/test/test_classifier.py +++ b/test/test_classifier.py @@ -1,323 +1,19 @@ -#!/usr/bin/env python +#!/usr/bin/env python3 -import unittest -import socket import binascii -import sys +import socket +import unittest from framework import VppTestCase, VppTestRunner +from scapy.packet import Raw, Packet -from scapy.packet import Raw from scapy.layers.l2 import Ether from scapy.layers.inet import IP, UDP, TCP from util import ppp - - -class TestClassifier(VppTestCase): - """ Classifier Test Case """ - - @classmethod - def setUpClass(cls): - """ - Perform standard class setup (defined by class method setUpClass in - class VppTestCase) before running the test case, set test case related - variables and configure VPP. - """ - super(TestClassifier, cls).setUpClass() - cls.acl_active_table = '' - - def setUp(self): - """ - Perform test setup before test case. - - **Config:** - - create 4 pg interfaces - - untagged pg0/pg1/pg2 interface - pg0 -------> pg1 (IP ACL) - \ - ---> pg2 (MAC ACL)) - \ - -> pg3 (PBR) - - setup interfaces: - - put it into UP state - - set IPv4 addresses - - resolve neighbor address using ARP - - :ivar list interfaces: pg interfaces. - :ivar list pg_if_packet_sizes: packet sizes in test. - :ivar dict acl_tbl_idx: ACL table index. - :ivar int pbr_vrfid: VRF id for PBR test. - """ - self.reset_packet_infos() - super(TestClassifier, self).setUp() - - # create 4 pg interfaces - self.create_pg_interfaces(range(4)) - - # packet sizes to test - self.pg_if_packet_sizes = [64, 9018] - - self.interfaces = list(self.pg_interfaces) - - # ACL & PBR vars - self.acl_tbl_idx = {} - self.pbr_vrfid = 200 - - # setup all interfaces - for intf in self.interfaces: - intf.admin_up() - intf.config_ip4() - intf.resolve_arp() - - def tearDown(self): - """Run standard test teardown and acl related log.""" - if not self.vpp_dead: - self.logger.info(self.vapi.ppcli("show inacl type ip4")) - self.logger.info(self.vapi.ppcli("show outacl type ip4")) - self.logger.info(self.vapi.cli("show classify table verbose")) - self.logger.info(self.vapi.cli("show ip fib")) - if self.acl_active_table == 'ip_out': - self.output_acl_set_interface( - self.pg0, self.acl_tbl_idx.get(self.acl_active_table), 0) - self.acl_active_table = '' - elif self.acl_active_table != '': - self.input_acl_set_interface( - self.pg0, self.acl_tbl_idx.get(self.acl_active_table), 0) - self.acl_active_table = '' - for intf in self.interfaces: - intf.unconfig_ip4() - intf.admin_down() - - super(TestClassifier, self).tearDown() - - def config_pbr_fib_entry(self, intf, is_add=1): - """Configure fib entry to route traffic toward PBR VRF table - - :param VppInterface intf: destination interface to be routed for PBR. - - """ - addr_len = 24 - self.vapi.ip_add_del_route(intf.local_ip4n, - addr_len, - intf.remote_ip4n, - table_id=self.pbr_vrfid, - is_add=is_add) - - def create_stream(self, src_if, dst_if, packet_sizes, - proto_l=UDP(sport=1234, dport=5678)): - """Create input packet stream for defined interfaces. - - :param VppInterface src_if: Source Interface for packet stream. - :param VppInterface dst_if: Destination Interface for packet stream. - :param list packet_sizes: packet size to test. - :param Scapy proto_l: Required IP protocol. Default protocol is UDP. - """ - pkts = [] - - for size in packet_sizes: - info = self.create_packet_info(src_if, dst_if) - payload = self.info_to_payload(info) - p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) / - IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4) / - proto_l / - Raw(payload)) - info.data = p.copy() - self.extend_packet(p, size) - pkts.append(p) - return pkts - - def verify_capture(self, dst_if, capture, proto_l=UDP): - """Verify captured input packet stream for defined interface. - - :param VppInterface dst_if: Interface to verify captured packet stream. - :param list capture: Captured packet stream. - :param Scapy proto_l: Required IP protocol. Default protocol is UDP. - """ - self.logger.info("Verifying capture on interface %s" % dst_if.name) - last_info = dict() - for i in self.interfaces: - last_info[i.sw_if_index] = None - dst_sw_if_index = dst_if.sw_if_index - for packet in capture: - try: - ip_received = packet[IP] - proto_received = packet[proto_l] - payload_info = self.payload_to_info(str(packet[Raw])) - packet_index = payload_info.index - self.assertEqual(payload_info.dst, dst_sw_if_index) - self.logger.debug( - "Got packet on port %s: src=%u (id=%u)" % - (dst_if.name, payload_info.src, packet_index)) - next_info = self.get_next_packet_info_for_interface2( - payload_info.src, dst_sw_if_index, - last_info[payload_info.src]) - last_info[payload_info.src] = next_info - self.assertTrue(next_info is not None) - self.assertEqual(packet_index, next_info.index) - saved_packet = next_info.data - ip_saved = saved_packet[IP] - proto_saved = saved_packet[proto_l] - # Check standard fields - self.assertEqual(ip_received.src, ip_saved.src) - self.assertEqual(ip_received.dst, ip_saved.dst) - self.assertEqual(proto_received.sport, proto_saved.sport) - self.assertEqual(proto_received.dport, proto_saved.dport) - except: - self.logger.error(ppp("Unexpected or invalid packet:", packet)) - raise - for i in self.interfaces: - remaining_packet = self.get_next_packet_info_for_interface2( - i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index]) - self.assertTrue(remaining_packet is None, - "Interface %s: Packet expected from interface %s " - "didn't arrive" % (dst_if.name, i.name)) - - def verify_vrf(self, vrf_id): - """ - Check if the FIB table / VRF ID is configured. - - :param int vrf_id: The FIB table / VRF ID to be verified. - :return: 1 if the FIB table / VRF ID is configured, otherwise return 0. - """ - ip_fib_dump = self.vapi.ip_fib_dump() - vrf_count = 0 - for ip_fib_details in ip_fib_dump: - if ip_fib_details[2] == vrf_id: - vrf_count += 1 - if vrf_count == 0: - self.logger.info("IPv4 VRF ID %d is not configured" % vrf_id) - return 0 - else: - self.logger.info("IPv4 VRF ID %d is configured" % vrf_id) - return 1 - - @staticmethod - def build_ip_mask(proto='', src_ip='', dst_ip='', - src_port='', dst_port=''): - """Build IP ACL mask data with hexstring format. - - :param str proto: protocol number <0-ff> - :param str src_ip: source ip address <0-ffffffff> - :param str dst_ip: destination ip address <0-ffffffff> - :param str src_port: source port number <0-ffff> - :param str dst_port: destination port number <0-ffff> - """ - - return ('{:0>20}{:0>12}{:0>8}{:0>4}{:0>4}'.format( - proto, src_ip, dst_ip, src_port, dst_port)).rstrip('0') - - @staticmethod - def build_ip_match(proto=0, src_ip='', dst_ip='', - src_port=0, dst_port=0): - """Build IP ACL match data with hexstring format. - - :param int proto: protocol number with valid option "x" - :param str src_ip: source ip address with format of "x.x.x.x" - :param str dst_ip: destination ip address with format of "x.x.x.x" - :param int src_port: source port number "x" - :param int dst_port: destination port number "x" - """ - if src_ip: - src_ip = socket.inet_aton(src_ip).encode('hex') - if dst_ip: - dst_ip = socket.inet_aton(dst_ip).encode('hex') - - return ('{:0>20}{:0>12}{:0>8}{:0>4}{:0>4}'.format( - hex(proto)[2:], src_ip, dst_ip, hex(src_port)[2:], - hex(dst_port)[2:])).rstrip('0') - - @staticmethod - def build_mac_mask(dst_mac='', src_mac='', ether_type=''): - """Build MAC ACL mask data with hexstring format. - - :param str dst_mac: source MAC address <0-ffffffffffff> - :param str src_mac: destination MAC address <0-ffffffffffff> - :param str ether_type: ethernet type <0-ffff> - """ - - return ('{:0>12}{:0>12}{:0>4}'.format(dst_mac, src_mac, - ether_type)).rstrip('0') - - @staticmethod - def build_mac_match(dst_mac='', src_mac='', ether_type=''): - """Build MAC ACL match data with hexstring format. - - :param str dst_mac: source MAC address - :param str src_mac: destination MAC address - :param str ether_type: ethernet type <0-ffff> - """ - if dst_mac: - dst_mac = dst_mac.replace(':', '') - if src_mac: - src_mac = src_mac.replace(':', '') - - return ('{:0>12}{:0>12}{:0>4}'.format(dst_mac, src_mac, - ether_type)).rstrip('0') - - def create_classify_table(self, key, mask, data_offset=0): - """Create Classify Table - - :param str key: key for classify table (ex, ACL name). - :param str mask: mask value for interested traffic. - :param int data_offset: - """ - r = self.vapi.classify_add_del_table( - is_add=1, - mask=binascii.unhexlify(mask), - match_n_vectors=(len(mask) - 1) // 32 + 1, - miss_next_index=0, - current_data_flag=1, - current_data_offset=data_offset) - self.assertIsNotNone(r, msg='No response msg for add_del_table') - self.acl_tbl_idx[key] = r.new_table_index - - def create_classify_session(self, table_index, match, pbr_option=0, - vrfid=0, is_add=1): - """Create Classify Session - - :param int table_index: table index to identify classify table. - :param str match: matched value for interested traffic. - :param int pbr_option: enable/disable PBR feature. - :param int vrfid: VRF id. - :param int is_add: option to configure classify session. - - create(1) or delete(0) - """ - r = self.vapi.classify_add_del_session( - is_add, - table_index, - binascii.unhexlify(match), - opaque_index=0, - action=pbr_option, - metadata=vrfid) - self.assertIsNotNone(r, msg='No response msg for add_del_session') - - def input_acl_set_interface(self, intf, table_index, is_add=1): - """Configure Input ACL interface - - :param VppInterface intf: Interface to apply Input ACL feature. - :param int table_index: table index to identify classify table. - :param int is_add: option to configure classify session. - - enable(1) or disable(0) - """ - r = self.vapi.input_acl_set_interface( - is_add, - intf.sw_if_index, - ip4_table_index=table_index) - self.assertIsNotNone(r, msg='No response msg for acl_set_interface') - - def output_acl_set_interface(self, intf, table_index, is_add=1): - """Configure Output ACL interface - - :param VppInterface intf: Interface to apply Output ACL feature. - :param int table_index: table index to identify classify table. - :param int is_add: option to configure classify session. - - enable(1) or disable(0) - """ - r = self.vapi.output_acl_set_interface( - is_add, - intf.sw_if_index, - ip4_table_index=table_index) - self.assertIsNotNone(r, msg='No response msg for acl_set_interface') +from template_classifier import TestClassifier, VarMask, VarMatch +from vpp_ip_route import VppIpRoute, VppRoutePath +from vpp_ip import INVALID_INDEX +from vpp_papi import VppEnum # Tests split to different test case classes because of issue reported in @@ -325,6 +21,14 @@ class TestClassifier(VppTestCase): class TestClassifierIP(TestClassifier): """ Classifier IP Test Case """ + @classmethod + def setUpClass(cls): + super(TestClassifierIP, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestClassifierIP, cls).tearDownClass() + def test_iacl_src_ip(self): """ Source IP iACL test @@ -421,6 +125,14 @@ class TestClassifierIP(TestClassifier): class TestClassifierUDP(TestClassifier): """ Classifier UDP proto Test Case """ + @classmethod + def setUpClass(cls): + super(TestClassifierUDP, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestClassifierUDP, cls).tearDownClass() + def test_iacl_proto_udp(self): """ UDP protocol iACL test @@ -561,6 +273,14 @@ class TestClassifierUDP(TestClassifier): class TestClassifierTCP(TestClassifier): """ Classifier TCP proto Test Case """ + @classmethod + def setUpClass(cls): + super(TestClassifierTCP, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestClassifierTCP, cls).tearDownClass() + def test_iacl_proto_tcp(self): """ TCP protocol iACL test @@ -702,6 +422,14 @@ class TestClassifierTCP(TestClassifier): class TestClassifierIPOut(TestClassifier): """ Classifier output IP Test Case """ + @classmethod + def setUpClass(cls): + super(TestClassifierIPOut, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestClassifierIPOut, cls).tearDownClass() + def test_acl_ip_out(self): """ Output IP ACL test @@ -737,6 +465,14 @@ class TestClassifierIPOut(TestClassifier): class TestClassifierMAC(TestClassifier): """ Classifier MAC Test Case """ + @classmethod + def setUpClass(cls): + super(TestClassifierMAC, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestClassifierMAC, cls).tearDownClass() + def test_acl_mac(self): """ MAC ACL test @@ -769,9 +505,295 @@ class TestClassifierMAC(TestClassifier): self.pg3.assert_nothing_captured(remark="packets forwarded") +class TestClassifierComplex(TestClassifier): + """ Large & Nested Classifiers Test Cases """ + + @classmethod + def setUpClass(cls): + super(TestClassifierComplex, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestClassifierComplex, cls).tearDownClass() + + def test_iacl_large(self): + """ Large input ACL test + + Test scenario for Large ACL matching on ethernet+ip+udp headers + - Create IPv4 stream for pg0 -> pg1 interface. + - Create large acl matching on ethernet+ip+udp header fields + - Send and verify received packets on pg1 interface. + """ + + # 40b offset = 80bytes - (sizeof(UDP/IP/ETH) + 4b) + # + 4b as build_ip_ma*() func, do not match against UDP Len & Chksum + msk = VarMask(offset=40, spec='ffff') + mth = VarMatch(offset=40, value=0x1234, length=2) + + payload_msk = self.build_payload_mask([msk]) + payload_match = self.build_payload_match([mth]) + + sport = 13720 + dport = 9080 + + # 36b offset = 80bytes - (sizeof(UDP/IP/ETH)) + packet_ex = bytes.fromhex(('0' * 36) + '1234') + pkts = self.create_stream(self.pg0, self.pg1, self.pg_if_packet_sizes, + UDP(sport=sport, dport=dport), + packet_ex) + self.pg0.add_stream(pkts) + + key = 'large_in' + self.create_classify_table( + key, + self.build_mac_mask(src_mac='ffffffffffff', + dst_mac='ffffffffffff', + ether_type='ffff') + + self.build_ip_mask(proto='ff', + src_ip='ffffffff', + dst_ip='ffffffff', + src_port='ffff', + dst_port='ffff') + + payload_msk, + data_offset=-14) + + self.create_classify_session( + self.acl_tbl_idx.get(key), + self.build_mac_match(src_mac=self.pg0.remote_mac, + dst_mac=self.pg0.local_mac, + # ipv4 next header + ether_type='0800') + + self.build_ip_match(proto=socket.IPPROTO_UDP, + src_ip=self.pg0.remote_ip4, + dst_ip=self.pg1.remote_ip4, + src_port=sport, + dst_port=dport) + + payload_match + ) + + self.input_acl_set_interface(self.pg0, self.acl_tbl_idx.get(key)) + self.acl_active_table = key + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + pkts = self.pg1.get_capture(len(pkts)) + self.verify_capture(self.pg1, pkts) + self.pg0.assert_nothing_captured(remark="packets forwarded") + self.pg2.assert_nothing_captured(remark="packets forwarded") + self.pg3.assert_nothing_captured(remark="packets forwarded") + + def test_oacl_large(self): + """ Large output ACL test + Test scenario for Large ACL matching on ethernet+ip+udp headers + - Create IPv4 stream for pg1 -> pg0 interface. + - Create large acl matching on ethernet+ip+udp header fields + - Send and verify received packets on pg0 interface. + """ + + # 40b offset = 80bytes - (sizeof(UDP/IP/ETH) + 4b) + # + 4b as build_ip_ma*() func, do not match against UDP Len & Chksum + msk = VarMask(offset=40, spec='ffff') + mth = VarMatch(offset=40, value=0x1234, length=2) + + payload_msk = self.build_payload_mask([msk]) + payload_match = self.build_payload_match([mth]) + + sport = 13720 + dport = 9080 + + # 36b offset = 80bytes - (sizeof(UDP/IP/ETH)) + packet_ex = bytes.fromhex(('0' * 36) + '1234') + pkts = self.create_stream(self.pg1, self.pg0, self.pg_if_packet_sizes, + UDP(sport=sport, dport=dport), + packet_ex) + self.pg1.add_stream(pkts) + + key = 'large_out' + self.create_classify_table( + key, + self.build_mac_mask(src_mac='ffffffffffff', + dst_mac='ffffffffffff', + ether_type='ffff') + + self.build_ip_mask(proto='ff', + src_ip='ffffffff', + dst_ip='ffffffff', + src_port='ffff', + dst_port='ffff') + + payload_msk, + data_offset=-14) + + self.create_classify_session( + self.acl_tbl_idx.get(key), + self.build_mac_match(src_mac=self.pg0.local_mac, + dst_mac=self.pg0.remote_mac, + # ipv4 next header + ether_type='0800') + + self.build_ip_match(proto=socket.IPPROTO_UDP, + src_ip=self.pg1.remote_ip4, + dst_ip=self.pg0.remote_ip4, + src_port=sport, + dst_port=dport) + + payload_match) + + self.output_acl_set_interface(self.pg0, self.acl_tbl_idx.get(key)) + self.acl_active_table = key + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + pkts = self.pg0.get_capture(len(pkts)) + self.verify_capture(self.pg0, pkts) + self.pg1.assert_nothing_captured(remark="packets forwarded") + self.pg2.assert_nothing_captured(remark="packets forwarded") + self.pg3.assert_nothing_captured(remark="packets forwarded") + + def test_iacl_nested(self): + """ Nested input ACL test + + Test scenario for Large ACL matching on ethernet+ip+udp headers + - Create IPv4 stream for pg0 -> pg1 interface. + - Create 1st classifier table, without any entries + - Create nested acl matching on ethernet+ip+udp header fields + - Send and verify received packets on pg1 interface. + """ + + sport = 13720 + dport = 9080 + pkts = self.create_stream(self.pg0, self.pg1, self.pg_if_packet_sizes, + UDP(sport=sport, dport=dport)) + + self.pg0.add_stream(pkts) + + subtable_key = 'subtable_in' + self.create_classify_table( + subtable_key, + self.build_mac_mask(src_mac='ffffffffffff', + dst_mac='ffffffffffff', + ether_type='ffff') + + self.build_ip_mask(proto='ff', + src_ip='ffffffff', + dst_ip='ffffffff', + src_port='ffff', + dst_port='ffff'), + data_offset=-14) + + key = 'nested_in' + self.create_classify_table( + key, + self.build_mac_mask(src_mac='ffffffffffff', + dst_mac='ffffffffffff', + ether_type='ffff') + + self.build_ip_mask(proto='ff', + src_ip='ffffffff', + dst_ip='ffffffff', + src_port='ffff', + dst_port='ffff'), + next_table_index=self.acl_tbl_idx.get(subtable_key)) + + self.create_classify_session( + self.acl_tbl_idx.get(subtable_key), + self.build_mac_match(src_mac=self.pg0.remote_mac, + dst_mac=self.pg0.local_mac, + # ipv4 next header + ether_type='0800') + + self.build_ip_match(proto=socket.IPPROTO_UDP, + src_ip=self.pg0.remote_ip4, + dst_ip=self.pg1.remote_ip4, + src_port=sport, + dst_port=dport)) + + self.input_acl_set_interface(self.pg0, self.acl_tbl_idx.get(key)) + self.acl_active_table = key + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + pkts = self.pg1.get_capture(len(pkts)) + self.verify_capture(self.pg1, pkts) + self.pg0.assert_nothing_captured(remark="packets forwarded") + self.pg2.assert_nothing_captured(remark="packets forwarded") + self.pg3.assert_nothing_captured(remark="packets forwarded") + + def test_oacl_nested(self): + """ Nested output ACL test + + Test scenario for Large ACL matching on ethernet+ip+udp headers + - Create IPv4 stream for pg1 -> pg0 interface. + - Create 1st classifier table, without any entries + - Create nested acl matching on ethernet+ip+udp header fields + - Send and verify received packets on pg0 interface. + """ + + sport = 13720 + dport = 9080 + pkts = self.create_stream(self.pg1, self.pg0, self.pg_if_packet_sizes, + UDP(sport=sport, dport=dport)) + self.pg1.add_stream(pkts) + + subtable_key = 'subtable_out' + self.create_classify_table( + subtable_key, + self.build_mac_mask(src_mac='ffffffffffff', + dst_mac='ffffffffffff', + ether_type='ffff') + + self.build_ip_mask(proto='ff', + src_ip='ffffffff', + dst_ip='ffffffff', + src_port='ffff', + dst_port='ffff'), + data_offset=-14) + + key = 'nested_out' + self.create_classify_table( + key, + self.build_mac_mask(src_mac='ffffffffffff', + dst_mac='ffffffffffff', + ether_type='ffff') + + self.build_ip_mask(proto='ff', + src_ip='ffffffff', + dst_ip='ffffffff', + src_port='ffff', + dst_port='ffff'), + next_table_index=self.acl_tbl_idx.get(subtable_key), + data_offset=-14) + + self.create_classify_session( + self.acl_tbl_idx.get(subtable_key), + self.build_mac_match(src_mac=self.pg0.local_mac, + dst_mac=self.pg0.remote_mac, + # ipv4 next header + ether_type='0800') + + self.build_ip_match(proto=socket.IPPROTO_UDP, + src_ip=self.pg1.remote_ip4, + dst_ip=self.pg0.remote_ip4, + src_port=sport, + dst_port=dport)) + + self.output_acl_set_interface(self.pg0, self.acl_tbl_idx.get(key)) + self.acl_active_table = key + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + pkts = self.pg0.get_capture(len(pkts)) + self.verify_capture(self.pg0, pkts) + self.pg1.assert_nothing_captured(remark="packets forwarded") + self.pg2.assert_nothing_captured(remark="packets forwarded") + self.pg3.assert_nothing_captured(remark="packets forwarded") + + class TestClassifierPBR(TestClassifier): """ Classifier PBR Test Case """ + @classmethod + def setUpClass(cls): + super(TestClassifierPBR, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestClassifierPBR, cls).tearDownClass() + def test_acl_pbr(self): """ IP PBR test @@ -794,7 +816,12 @@ class TestClassifierPBR(TestClassifier): self.build_ip_match(src_ip=self.pg0.remote_ip4), pbr_option, self.pbr_vrfid) self.assertTrue(self.verify_vrf(self.pbr_vrfid)) - self.config_pbr_fib_entry(self.pg3) + r = VppIpRoute(self, self.pg3.local_ip4, 24, + [VppRoutePath(self.pg3.remote_ip4, + INVALID_INDEX)], + table_id=self.pbr_vrfid) + r.add_vpp_config() + self.input_acl_set_interface(self.pg0, self.acl_tbl_idx.get(key)) self.pg_enable_capture(self.pg_interfaces) @@ -808,7 +835,7 @@ class TestClassifierPBR(TestClassifier): self.pg2.assert_nothing_captured(remark="packets forwarded") # remove the classify session and the route - self.config_pbr_fib_entry(self.pg3, is_add=0) + r.remove_vpp_config() self.create_classify_session( self.acl_tbl_idx.get(key), self.build_ip_match(src_ip=self.pg0.remote_ip4), @@ -817,5 +844,91 @@ class TestClassifierPBR(TestClassifier): # and the table should be gone. self.assertFalse(self.verify_vrf(self.pbr_vrfid)) + +class TestClassifierPunt(TestClassifier): + """ Classifier punt Test Case """ + + @classmethod + def setUpClass(cls): + super(TestClassifierPunt, cls).setUpClass() + + @classmethod + def tearDownClass(cls): + super(TestClassifierPunt, cls).tearDownClass() + + def test_punt_udp(self): + """ IPv4/UDP protocol punt ACL test + + Test scenario for basic punt ACL with UDP protocol + - Create IPv4 stream for pg0 -> pg1 interface. + - Create punt ACL with UDP IP protocol. + - Send and verify received packets on pg1 interface. + """ + + sport = 6754 + dport = 17923 + + key = 'ip4_udp_punt' + self.create_classify_table( + key, + self.build_ip_mask( + src_ip='ffffffff', + proto='ff', + src_port='ffff')) + table_index = self.acl_tbl_idx.get(key) + self.vapi.punt_acl_add_del(ip4_table_index=table_index) + self.acl_active_table = key + + # punt udp packets to dport received on pg0 through pg1 + self.vapi.set_punt( + is_add=1, + punt={ + 'type': VppEnum.vl_api_punt_type_t.PUNT_API_TYPE_L4, + 'punt': { + 'l4': { + 'af': VppEnum.vl_api_address_family_t.ADDRESS_IP4, + 'protocol': VppEnum.vl_api_ip_proto_t.IP_API_PROTO_UDP, + 'port': dport, + }}}) + self.vapi.ip_punt_redirect(punt={ + 'rx_sw_if_index': self.pg0.sw_if_index, + 'tx_sw_if_index': self.pg1.sw_if_index, + 'nh': self.pg1.remote_ip4, + }) + + pkts = [(Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) / + UDP(sport=sport, dport=dport) / + Raw('\x17' * 100))] * 2 + + # allow a session but not matching the stream: expect to drop + self.create_classify_session( + table_index, + self.build_ip_match(src_ip=self.pg0.remote_ip4, + proto=socket.IPPROTO_UDP, src_port=sport + 10)) + self.send_and_assert_no_replies(self.pg0, pkts) + + # allow a session matching the stream: expect to pass + self.create_classify_session( + table_index, + self.build_ip_match(src_ip=self.pg0.remote_ip4, + proto=socket.IPPROTO_UDP, src_port=sport)) + self.send_and_expect_only(self.pg0, pkts, self.pg1) + + # test dump api: ip4 is set, ip6 is not + r = self.vapi.punt_acl_get() + self.assertEqual(r.ip4_table_index, table_index) + self.assertEqual(r.ip6_table_index, 0xffffffff) + + # cleanup + self.acl_active_table = '' + self.vapi.punt_acl_add_del(ip4_table_index=table_index, is_add=0) + + # test dump api: nothing set + r = self.vapi.punt_acl_get() + self.assertEqual(r.ip4_table_index, 0xffffffff) + self.assertEqual(r.ip6_table_index, 0xffffffff) + + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)