tapv2: add "tap_flags" field to the TAPv2 interface API

Change-Id: I26f99d95f52c9fe107d17dcbbf5c6185523beade
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
diff --git a/src/vnet/devices/tap/tapv2_api.c b/src/vnet/devices/tap/tapv2_api.c
index e70d63f..1260afd 100644
--- a/src/vnet/devices/tap/tapv2_api.c
+++ b/src/vnet/devices/tap/tapv2_api.c
@@ -109,6 +109,8 @@
       ap->host_ip6_gw_set = 1;
     }
 
+  ap->tap_flags = ntohl (mp->tap_flags);
+
   tap_create_if (vm, ap);
 
   reg = vl_api_client_index_to_registration (mp->client_index);
@@ -194,6 +196,7 @@
   mp->_vl_msg_id = htons (VL_API_SW_INTERFACE_TAP_V2_DETAILS);
   mp->id = htonl (tap_if->id);
   mp->sw_if_index = htonl (tap_if->sw_if_index);
+  mp->tap_flags = htonl (tap_if->tap_flags);
   clib_memcpy (mp->dev_name, tap_if->dev_name,
 	       MIN (ARRAY_LEN (mp->dev_name) - 1,
 		    strlen ((const char *) tap_if->dev_name)));