diff options
Diffstat (limited to 'test/test_span.py')
| -rw-r--r-- | test/test_span.py | 72 |
1 files changed, 71 insertions, 1 deletions
diff --git a/test/test_span.py b/test/test_span.py index a77c98334b4..021eed83177 100644 --- a/test/test_span.py +++ b/test/test_span.py @@ -3,7 +3,7 @@ import unittest from scapy.packet import Raw -from scapy.layers.l2 import Ether, Dot1Q, GRE +from scapy.layers.l2 import Ether, Dot1Q, GRE, ERSPAN from scapy.layers.inet import IP, UDP from scapy.layers.vxlan import VXLAN @@ -102,6 +102,27 @@ class TestSpan(VppTestCase): return pkt[GRE].payload + def decap_erspan(self, pkt, session): + """ + Decapsulate the original payload frame by removing ERSPAN header + """ + self.assertEqual(pkt[Ether].src, self.pg2.local_mac) + self.assertEqual(pkt[Ether].dst, self.pg2.remote_mac) + + self.assertEqual(pkt[IP].src, self.pg2.local_ip4) + self.assertEqual(pkt[IP].dst, self.pg2.remote_ip4) + + self.assertEqual(pkt[ERSPAN].ver, 1) + self.assertEqual(pkt[ERSPAN].vlan, 0) + self.assertEqual(pkt[ERSPAN].cos, 0) + self.assertEqual(pkt[ERSPAN].en, 3) + self.assertEqual(pkt[ERSPAN].t, 0) + self.assertEqual(pkt[ERSPAN].session_id, session) + self.assertEqual(pkt[ERSPAN].reserved, 0) + self.assertEqual(pkt[ERSPAN].index, 0) + + return pkt[ERSPAN].payload + def decap_vxlan(self, pkt): """ Decapsulate the original payload frame by removing VXLAN header @@ -245,6 +266,54 @@ class TestSpan(VppTestCase): self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_pkts) + def test_span_l2_rx_dst_gre_erspan(self): + """ SPAN l2 rx mirror into gre-erspan """ + + self.sub_if.admin_up() + + gre_if = VppGreInterface(self, self.pg2.local_ip4, + self.pg2.remote_ip4, + type=2, + session=543) + + gre_if.add_vpp_config() + gre_if.admin_up() + + self.bridge(gre_if.sw_if_index) + # Create bi-directional cross-connects between pg0 and pg1 + self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1) + + # Create incoming packet streams for packet-generator interfaces + pkts = self.create_stream( + self.pg0, self.pg_if_packet_sizes, do_dot1=True) + self.pg0.add_stream(pkts) + + # Enable SPAN on pg0 sub if (mirrored to gre-erspan) + self.vapi.sw_interface_span_enable_disable( + self.sub_if.sw_if_index, gre_if.sw_if_index, is_l2=1) + + # Enable packet capturing and start packet sending + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + # Verify packets outgoing packet streams on mirrored interface (pg2) + n_pkts = len(pkts) + pg1_pkts = self.pg1.get_capture(n_pkts) + pg2_pkts = self.pg2.get_capture(n_pkts) + + def decap(p): return self.decap_erspan(p, session=543) + pg2_decaped = [decap(p) for p in pg2_pkts] + + self.bridge(gre_if.sw_if_index, is_add=0) + + # Disable SPAN on pg0 sub if + self.vapi.sw_interface_span_enable_disable( + self.sub_if.sw_if_index, gre_if.sw_if_index, state=0, is_l2=1) + gre_if.remove_vpp_config() + self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) + + self.verify_capture(pg1_pkts, pg2_decaped) + def test_span_l2_rx_dst_gre_subif_vtr(self): """ SPAN l2 rx mirror into gre-subif+vtr """ @@ -270,6 +339,7 @@ class TestSpan(VppTestCase): self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pkts) + # Enable SPAN on pg0 sub if (mirrored to gre sub if) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, gre_sub_if.sw_if_index, is_l2=1) |