Commit 29efcd26 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

[LLC]: allow datagram recvmsg



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: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent aecbd4e4
......@@ -674,7 +674,7 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock,
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 *iocb, struct socket *sock,
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
......
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