LLC receive is broken for SOCK_DGRAM. If an application does recv() on a datagram socket and there is no data present, don't return "not connected". Instead, just do normal datagram semantics.
Signed-off-by: Stephen Hemminger <[EMAIL PROTECTED]> --- llc.orig/net/llc/af_llc.c +++ llc/net/llc/af_llc.c @@ -674,7 +674,7 @@ static int llc_ui_recvmsg(struct kiocb * lock_sock(sk); copied = -ENOTCONN; - if (sk->sk_state == TCP_LISTEN) + if (unlikely(sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_LISTEN)) goto out; timeo = sock_rcvtimeo(sk, nonblock); @@ -733,7 +733,7 @@ static int llc_ui_recvmsg(struct kiocb * if (sk->sk_shutdown & RCV_SHUTDOWN) break; - if (sk->sk_state == TCP_CLOSE) { + if (sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_CLOSE) { if (!sock_flag(sk, SOCK_DONE)) { /* * This occurs when user tries to read -- - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html