diff options
| -rw-r--r-- | test/framework.py | 4 | ||||
| -rw-r--r-- | test/test_bpf_trace_filter.py | 105 |
2 files changed, 107 insertions, 2 deletions
diff --git a/test/framework.py b/test/framework.py index fbbc11218bf..6ff03d8b073 100644 --- a/test/framework.py +++ b/test/framework.py @@ -132,14 +132,14 @@ class VppTestCase(VppAsfTestCase): cls._pcaps.append((intf, worker)) @classmethod - def pg_start(cls, trace=True): + def pg_start(cls, trace=True, traceFilter=False): """Enable the PG, wait till it is done, then clean up""" for intf, worker in cls._old_pcaps: intf.remove_old_pcap_file(intf.get_in_path(worker)) cls._old_pcaps = [] if trace: cls.vapi.cli("clear trace") - cls.vapi.cli("trace add pg-input 1000") + cls.vapi.cli("trace add pg-input 1000" + (" filter" if traceFilter else "")) cls.vapi.cli("packet-generator enable") # PG, when starts, runs to completion - # so let's avoid a race condition, diff --git a/test/test_bpf_trace_filter.py b/test/test_bpf_trace_filter.py new file mode 100644 index 00000000000..9ee74db681e --- /dev/null +++ b/test/test_bpf_trace_filter.py @@ -0,0 +1,105 @@ +from framework import VppTestCase +from asfframework import VppTestRunner +import unittest +from config import config +from scapy.layers.l2 import Ether +from scapy.layers.inet import IP, UDP +from random import randint + + +@unittest.skipIf( + "bpf_trace_filter" in config.excluded_plugins, + "Exclude BPF Trace Filter plugin tests", +) +class TestBpfTraceFilter(VppTestCase): + """BPF Trace filter test""" + + @classmethod + def setUpClass(cls): + super(TestBpfTraceFilter, cls).setUpClass() + try: + cls.create_pg_interfaces(range(2)) + for i in cls.pg_interfaces: + i.config_ip4() + i.resolve_arp() + i.admin_up() + except Exception: + cls.tearDownClass() + raise + + @classmethod + def tearDownClass(cls): + for i in cls.pg_interfaces: + i.unconfig_ip4() + i.admin_down() + super(TestBpfTraceFilter, cls).tearDownClass() + + # reset trace filter before each test + def setUp(self): + super(TestBpfTraceFilter, self).setUp() + self.vapi.cli("set trace filter function vnet_is_packet_traced") + self.vapi.cli("clear trace") + + def create_stream(self, src_if, dst_if, count): + packets = [] + for i in range(count): + 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) + / UDP(sport=randint(49152, 65535), dport=5678) + ) + info.data = p.copy() + packets.append(p) + return packets + + def test_bpf_trace_filter_cli(self): + """BPF Trace filter test [CLI]""" + self.vapi.cli("set bpf trace filter {{tcp}}") + self.vapi.cli("set trace filter function bpf_trace_filter") + + packets = self.create_stream(self.pg0, self.pg1, 3) + self.pg0.add_stream(packets) + self.pg_start(traceFilter=True) + + # verify that bpf trace filter has been selected + reply = self.vapi.cli("show trace filter function") + self.assertIn( + "(*) name:bpf_trace_filter", reply, "BPF Trace filter is not selected" + ) + + # verify that trace is empty + reply = self.vapi.cli("show trace") + self.assertIn( + "No packets in trace buffer", + reply, + "Unexpected packets in the trace buffer", + ) + + def test_bpf_trace_filter_vapi(self): + """BPF Trace filter test [VAPI]""" + self.vapi.bpf_trace_filter_set(filter="tcp") + self.vapi.trace_set_filter_function(filter_function_name="bpf_trace_filter") + + packets = self.create_stream(self.pg0, self.pg1, 3) + self.pg0.add_stream(packets) + self.pg_start(traceFilter=True) + + # verify that bpf trace filter has been selected + reply = self.vapi.cli("show trace filter function") + self.assertIn( + "(*) name:bpf_trace_filter", reply, "BPF Trace filter is not selected" + ) + + # verify that trace is empty + reply = self.vapi.cli("show trace") + self.assertIn( + "No packets in trace buffer", + reply, + "Unexpected packets in the trace buffer", + ) + + +if __name__ == "__main__": + unittest.main(testRunner=VppTestRunner) |