classify: per-interface rx/tx pcap capture filters

[vpp.git] / src / vnet / interface_output.c

diff --git a/src/vnet/interface_output.c b/src/vnet/interface_output.c
index 5e702e3..49775d5 100644 (file)
--- a/src/vnet/interface_output.c
+++ b/src/vnet/interface_output.c
@@ -503,7 +503,16 @@ static_always_inline void vnet_interface_pcap_tx_trace
        sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_TX];
 
       if (pp->pcap_sw_if_index == 0 || pp->pcap_sw_if_index == sw_if_index)
-       pcap_add_buffer (&pp->pcap_main, vm, bi0, pp->max_bytes_per_pkt);
+       {
+         vnet_main_t *vnm = vnet_get_main ();
+         vnet_hw_interface_t *hi =
+           vnet_get_sup_hw_interface (vnm, sw_if_index);
+         /* Capture pkt if not filtered, or if filter hits */
+         if (hi->trace_classify_table_index == ~0 ||
+             vnet_is_packet_traced_inline
+             (b0, hi->trace_classify_table_index, 0 /* full classify */ ))
+           pcap_add_buffer (&pp->pcap_main, vm, bi0, pp->max_bytes_per_pkt);
+       }
     }
 }