api: pcap capture api update

Allow enabling and disabling pcap capture via the API.
A little bug is fixed along the way in
vl_api_classify_pcap_set_table_t_handler.

Type: improvement

Signed-off-by: Maxime Peim <mpeim@cisco.com>
Change-Id: I096129c82aecdc82bee5dbfb5e19c76a51d80aab

1 files changed, 59 insertions, 0 deletions

diff --git a/src/vnet/interface_api.c b/src/vnet/interface_api.c
index 288af78b2be..807c908731d 100644
--- a/src/vnet/interface_api.c
+++ b/src/vnet/interface_api.c
@@ -1604,6 +1604,65 @@ static void
   REPLY_MACRO (VL_API_SW_INTERFACE_ADDRESS_REPLACE_END_REPLY);
 }
 
+static void
+vl_api_pcap_trace_on_t_handler (vl_api_pcap_trace_on_t *mp)
+{
+  vl_api_pcap_trace_on_reply_t *rmp;
+  unformat_input_t filename, drop_err_name;
+  vnet_pcap_dispatch_trace_args_t capture_args;
+  int rv = 0;
+
+  VALIDATE_SW_IF_INDEX (mp);
+
+  unformat_init_cstring (&filename, (char *) mp->filename);
+  if (!unformat_user (&filename, unformat_vlib_tmpfile,
+		      &capture_args.filename))
+    {
+      rv = VNET_API_ERROR_ILLEGAL_NAME;
+      goto out;
+    }
+
+  capture_args.rx_enable = mp->capture_rx;
+  capture_args.tx_enable = mp->capture_tx;
+  capture_args.preallocate_data = mp->preallocate_data;
+  capture_args.free_data = mp->free_data;
+  capture_args.drop_enable = mp->capture_drop;
+  capture_args.status = 0;
+  capture_args.packets_to_capture = ntohl (mp->max_packets);
+  capture_args.sw_if_index = ntohl (mp->sw_if_index);
+  capture_args.filter = mp->filter;
+  capture_args.max_bytes_per_pkt = ntohl (mp->max_bytes_per_packet);
+  capture_args.drop_err = ~0;
+
+  unformat_init_cstring (&drop_err_name, (char *) mp->error);
+  unformat_user (&drop_err_name, unformat_vlib_error, vlib_get_main (),
+		 &capture_args.drop_err);
+
+  rv = vnet_pcap_dispatch_trace_configure (&capture_args);
+
+  BAD_SW_IF_INDEX_LABEL;
+
+out:
+  unformat_free (&filename);
+  unformat_free (&drop_err_name);
+
+  REPLY_MACRO (VL_API_PCAP_TRACE_ON_REPLY);
+}
+
+static void
+vl_api_pcap_trace_off_t_handler (vl_api_pcap_trace_off_t *mp)
+{
+  vl_api_pcap_trace_off_reply_t *rmp;
+  vnet_pcap_dispatch_trace_args_t capture_args;
+  int rv = 0;
+
+  clib_memset (&capture_args, 0, sizeof (capture_args));
+
+  rv = vnet_pcap_dispatch_trace_configure (&capture_args);
+
+  REPLY_MACRO (VL_API_PCAP_TRACE_OFF_REPLY);
+}
+
 /*
  * vpe_api_hookup
  * Add vpe's API message handlers to the table.