don't write data on RECV packet or STATE CHANGE

diff --git a/src/listen/bfd/proto_bfd.c b/src/listen/bfd/proto_bfd.c
index 530e0087e2851c18817434378e205b67b831afe9..4ddc684775442cd4d8f712421e9d23e4cd227d7c 100644 (file)
--- a/src/listen/bfd/proto_bfd.c
+++ b/src/listen/bfd/proto_bfd.c
@@ -296,12 +296,13 @@ static ssize_t mod_encode(UNUSED void const *instance, request_t *request, uint8
        fr_io_track_t           *track = talloc_get_type_abort(request->async->packet_ctx, fr_io_track_t);
        fr_io_address_t const   *address = track->address;
        fr_client_t const       *client;
+       bfd_wrapper_t const     *wrapper = (bfd_wrapper_t const *) request->packet->data;
 
        /*
         *      Process layer NAK, or "Do not respond".
         */
-       if (buffer_len == 1) {
-               return 1;
+       if ((buffer_len == 1) || (wrapper->type == BFD_WRAPPER_RECV_PACKET) || (wrapper->type == BFD_WRAPPER_STATE_CHANGE)) {
+               return 0;
        }
 
        client = address->radclient;