+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")
+
+