ipip: Don't crash when showing non-existant tunnel index

Type: fix

Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: I9717d420e42098e291c5b6c7d18e935ad78fdc3d

diff --git a/src/vnet/ipip/ipip_cli.c b/src/vnet/ipip/ipip_cli.c
index 510806b..231c7e3 100644 (file)
--- a/src/vnet/ipip/ipip_cli.c
+++ b/src/vnet/ipip/ipip_cli.c
@@ -232,6 +232,8 @@ static clib_error_t *show_ipip_tunnel_command_fn(vlib_main_t *vm,
                  ({vlib_cli_output(vm, "%U", format_ipip_tunnel, t); }));
     /* *INDENT-ON* */
   } else {
+    if (pool_is_free_index (gm->tunnels, ti))
+        return clib_error_return(0, "unknown index:%d", ti);
     t = pool_elt_at_index(gm->tunnels, ti);
     if (t)
       vlib_cli_output(vm, "%U", format_ipip_tunnel, t);