diff options
Diffstat (limited to 'test/test_mpls.py')
| -rw-r--r-- | test/test_mpls.py | 114 |
1 files changed, 112 insertions, 2 deletions
diff --git a/test/test_mpls.py b/test/test_mpls.py index d265e85ed5e..9590519e237 100644 --- a/test/test_mpls.py +++ b/test/test_mpls.py @@ -12,7 +12,7 @@ from vpp_mpls_tunnel_interface import VppMPLSTunnelInterface from scapy.packet import Raw from scapy.layers.l2 import Ether from scapy.layers.inet import IP, UDP, ICMP -from scapy.layers.inet6 import IPv6 +from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded from scapy.contrib.mpls import MPLS @@ -288,6 +288,32 @@ class TestMPLS(VppTestCase): except: raise + def verify_capture_ip6_icmp(self, src_if, capture, sent): + try: + self.assertEqual(len(capture), len(sent)) + + for i in range(len(capture)): + tx = sent[i] + rx = capture[i] + + # the rx'd packet has the MPLS label popped + eth = rx[Ether] + self.assertEqual(eth.type, 0x86DD) + + tx_ip = tx[IPv6] + rx_ip = rx[IPv6] + + self.assertEqual(rx_ip.dst, tx_ip.src) + # ICMP sourced from the interface's address + self.assertEqual(rx_ip.src, src_if.local_ip6) + # hop-limit reset to 255 for IMCP packet + self.assertEqual(rx_ip.hlim, 254) + + icmp = rx[ICMPv6TimeExceeded] + + except: + raise + def send_and_assert_no_replies(self, intf, pkts, remark): intf.add_stream(pkts) self.pg_enable_capture(self.pg_interfaces) @@ -364,6 +390,91 @@ class TestMPLS(VppTestCase): self.verify_capture_ip4(self.pg0, rx, tx) # + # disposed packets have an invalid IPv4 checkusm + # + tx = self.create_stream_labelled_ip4(self.pg0, [33], + dst_ip=self.pg0.remote_ip4, + n=65, + chksum=1) + self.send_and_assert_no_replies(self.pg0, tx, "Invalid Checksum") + + # + # An MPLS xconnect - EOS label in IPv6 out + # + route_333_eos = VppMplsRoute( + self, 333, 1, + [VppRoutePath(self.pg0.remote_ip6, + self.pg0.sw_if_index, + labels=[], + proto=DpoProto.DPO_PROTO_IP6)]) + route_333_eos.add_vpp_config() + + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip6(self.pg0, [333], 64) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_ip6(self.pg0, rx, tx) + + # + # disposed packets have an TTL expired + # + tx = self.create_stream_labelled_ip6(self.pg0, [333], 64, + dst_ip=self.pg1.remote_ip6, + hlim=1) + + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip6(self.pg0, [333], 64, + dst_ip=self.pg1.remote_ip6, + hlim=0) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_ip6_icmp(self.pg0, rx, tx) + + # + # An MPLS xconnect - EOS label in IPv6 out w imp-null + # + route_334_eos = VppMplsRoute( + self, 334, 1, + [VppRoutePath(self.pg0.remote_ip6, + self.pg0.sw_if_index, + labels=[3], + proto=DpoProto.DPO_PROTO_IP6)]) + route_334_eos.add_vpp_config() + + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip6(self.pg0, [334], 64) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_ip6(self.pg0, rx, tx) + + # + # disposed packets have an TTL expired + # + self.vapi.cli("clear trace") + tx = self.create_stream_labelled_ip6(self.pg0, [334], 64, + dst_ip=self.pg1.remote_ip6, + hlim=0) + self.pg0.add_stream(tx) + + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg0.get_capture() + self.verify_capture_ip6_icmp(self.pg0, rx, tx) + + # # An MPLS xconnect - non-EOS label in IP out - an invalid configuration # so this traffic should be dropped. # @@ -1043,7 +1154,6 @@ class TestMPLS(VppTestCase): tx = self.create_stream_labelled_ip4(self.pg0, [34], dst_ip="232.1.1.1") self.send_and_assert_no_replies(self.pg0, tx, "RPF-ID drop 56") - self.logger.error(self.vapi.cli("sh error")) def test_mcast_ip6_tail(self): """ MPLS IPv6 Multicast Tail """ |