VPP-1083 "ip punt redirect add" crashed if not mentioned any other parameter

[vpp.git] / src / vnet / ip / ip4_punt_drop.c

diff --git a/src/vnet/ip/ip4_punt_drop.c b/src/vnet/ip/ip4_punt_drop.c
index 5f40e14..4e74963 100644 (file)
--- a/src/vnet/ip/ip4_punt_drop.c
+++ b/src/vnet/ip/ip4_punt_drop.c
@@ -390,8 +390,8 @@ ip4_punt_redirect_cmd (vlib_main_t * vm,
 {
   unformat_input_t _line_input, *line_input = &_line_input;
   clib_error_t *error = 0;
-  u32 rx_sw_if_index;
-  u32 tx_sw_if_index;
+  u32 rx_sw_if_index = 0;
+  u32 tx_sw_if_index = 0;
   ip46_address_t nh;
   vnet_main_t *vnm;
   u8 is_add;
@@ -429,9 +429,19 @@ ip4_punt_redirect_cmd (vlib_main_t * vm,
     }
 
   if (is_add)
-    ip4_punt_redirect_add (rx_sw_if_index, tx_sw_if_index, &nh);
+    {
+      if (rx_sw_if_index && tx_sw_if_index)
+       {
+         ip4_punt_redirect_add (rx_sw_if_index, tx_sw_if_index, &nh);
+       }
+    }
   else
-    ip4_punt_redirect_del (rx_sw_if_index);
+    {
+      if (rx_sw_if_index)
+       {
+         ip4_punt_redirect_del (rx_sw_if_index);
+       }
+    }
 
 done:
   unformat_free (line_input);