tipc: Don't respond to neighbor discovery request on blocked bearer

Adds a check to prevent TIPC from trying to respond to an incoming
LINK_CONFIG request message if the associated bearer is currently
prohibited from sending messages.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 2c14d6d..491eff5 100644 (file)
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -202,7 +202,7 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct tipc_bearer *b_ptr)
        /* Accept discovery message & send response, if necessary */
        link_fully_up = link_working_working(link);
 
-       if ((type == DSC_REQ_MSG) && !link_fully_up) {
+       if ((type == DSC_REQ_MSG) && !link_fully_up && !b_ptr->blocked) {
                rbuf = tipc_disc_init_msg(DSC_RESP_MSG, orig, b_ptr);
                if (rbuf) {
                        b_ptr->media->send_msg(rbuf, b_ptr, &media_addr);