policer: add api to configure input policing

Add a new API to apply a policer to an input interface.

Type: improvement
Signed-off-by: Brian Russell <brian@graphiant.com>
Change-Id: Ie8aff9120149b63d85363a9a5afdcaed60a93700
diff --git a/src/vnet/policer/policer_api.c b/src/vnet/policer/policer_api.c
index eff02fb..c3a9800 100644
--- a/src/vnet/policer/policer_api.c
+++ b/src/vnet/policer/policer_api.c
@@ -45,6 +45,7 @@
 #define foreach_vpe_api_msg                                                   \
   _ (POLICER_ADD_DEL, policer_add_del)                                        \
   _ (POLICER_BIND, policer_bind)                                              \
+  _ (POLICER_INPUT, policer_input)                                            \
   _ (POLICER_DUMP, policer_dump)
 
 static void
@@ -117,6 +118,30 @@
 }
 
 static void
+vl_api_policer_input_t_handler (vl_api_policer_input_t *mp)
+{
+  vl_api_policer_bind_reply_t *rmp;
+  u8 *name;
+  u32 sw_if_index;
+  u8 apply;
+  int rv;
+
+  VALIDATE_SW_IF_INDEX (mp);
+
+  name = format (0, "%s", mp->name);
+  vec_terminate_c_string (name);
+
+  sw_if_index = ntohl (mp->sw_if_index);
+  apply = mp->apply;
+
+  rv = policer_input (name, sw_if_index, apply);
+  vec_free (name);
+
+  BAD_SW_IF_INDEX_LABEL;
+  REPLY_MACRO (VL_API_POLICER_INPUT_REPLY);
+}
+
+static void
 send_policer_details (u8 *name, qos_pol_cfg_params_st *config,
 		      policer_t *templ, vl_api_registration_t *reg,
 		      u32 context)