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Diffstat (limited to 'net')
-rw-r--r--net/unix/af_unix.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 3a43a8304768..b1d75beb7e20 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -524,6 +524,8 @@ static int unix_dgram_connect(struct socket *, struct sockaddr *,
524 int, int); 524 int, int);
525static int unix_seqpacket_sendmsg(struct kiocb *, struct socket *, 525static int unix_seqpacket_sendmsg(struct kiocb *, struct socket *,
526 struct msghdr *, size_t); 526 struct msghdr *, size_t);
527static int unix_seqpacket_recvmsg(struct kiocb *, struct socket *,
528 struct msghdr *, size_t, int);
527 529
528static const struct proto_ops unix_stream_ops = { 530static const struct proto_ops unix_stream_ops = {
529 .family = PF_UNIX, 531 .family = PF_UNIX,
@@ -583,7 +585,7 @@ static const struct proto_ops unix_seqpacket_ops = {
583 .setsockopt = sock_no_setsockopt, 585 .setsockopt = sock_no_setsockopt,
584 .getsockopt = sock_no_getsockopt, 586 .getsockopt = sock_no_getsockopt,
585 .sendmsg = unix_seqpacket_sendmsg, 587 .sendmsg = unix_seqpacket_sendmsg,
586 .recvmsg = unix_dgram_recvmsg, 588 .recvmsg = unix_seqpacket_recvmsg,
587 .mmap = sock_no_mmap, 589 .mmap = sock_no_mmap,
588 .sendpage = sock_no_sendpage, 590 .sendpage = sock_no_sendpage,
589}; 591};
@@ -1699,6 +1701,18 @@ static int unix_seqpacket_sendmsg(struct kiocb *kiocb, struct socket *sock,
1699 return unix_dgram_sendmsg(kiocb, sock, msg, len); 1701 return unix_dgram_sendmsg(kiocb, sock, msg, len);
1700} 1702}
1701 1703
1704static int unix_seqpacket_recvmsg(struct kiocb *iocb, struct socket *sock,
1705 struct msghdr *msg, size_t size,
1706 int flags)
1707{
1708 struct sock *sk = sock->sk;
1709
1710 if (sk->sk_state != TCP_ESTABLISHED)
1711 return -ENOTCONN;
1712
1713 return unix_dgram_recvmsg(iocb, sock, msg, size, flags);
1714}
1715
1702static void unix_copy_addr(struct msghdr *msg, struct sock *sk) 1716static void unix_copy_addr(struct msghdr *msg, struct sock *sk)
1703{ 1717{
1704 struct unix_sock *u = unix_sk(sk); 1718 struct unix_sock *u = unix_sk(sk);