commit d58daf42d29a3a4a4d4be46cf47ceee096789680
author Marcel Holtmann <marcel@holtmann.org> Thu Jan 15 21:52:14 2009 +0100
committer Marcel Holtmann <marcel@holtmann.org> Fri Feb 27 06:14:22 2009 +0100
tree c88a5820a44fe993e271437b0fcebdde7e8298d3
parent 91aa35a5aa3540223066bf6b51c935418c63a35d

Bluetooth: Preparation for usage of SOL_BLUETOOTH

The socket option levels SOL_L2CAP, SOL_RFOMM and SOL_SCO are currently
in use by various Bluetooth applications. Going forward the common
option level SOL_BLUETOOTH should be used. This patch prepares the clean
split of the old and new option levels while keeping everything backward
compatibility.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/rfcomm/sock.c

diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index ce505f2..65dd713 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -713,7 +713,7 @@
 	return copied ? : err;
 }
 
-static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen)
+static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, int optlen)
 {
 	struct sock *sk = sock->sk;
 	int err = 0;
@@ -742,7 +742,29 @@
 	return err;
 }
 
-static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, int optlen)
+{
+	struct sock *sk = sock->sk;
+	int err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (level == SOL_RFCOMM)
+		return rfcomm_sock_setsockopt_old(sock, optname, optval, optlen);
+
+	lock_sock(sk);
+
+	switch (optname) {
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
+static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
 {
 	struct sock *sk = sock->sk;
 	struct sock *l2cap_sk;
@@ -788,6 +810,31 @@
 	return err;
 }
 
+static int rfcomm_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+{
+	struct sock *sk = sock->sk;
+	int len, err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	if (level == SOL_RFCOMM)
+		return rfcomm_sock_getsockopt_old(sock, optname, optval, optlen);
+
+	if (get_user(len, optlen))
+		return -EFAULT;
+
+	lock_sock(sk);
+
+	switch (optname) {
+	default:
+		err = -ENOPROTOOPT;
+		break;
+	}
+
+	release_sock(sk);
+	return err;
+}
+
 static int rfcomm_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 {
 	struct sock *sk __maybe_unused = sock->sk;