From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: johan.hedberg@gmail.com To: linux-bluetooth@vger.kernel.org Subject: [PATCH v2] Bluetooth: Reintroduce socket restrictions for LE sockets Date: Wed, 16 Oct 2013 17:13:26 +0300 Message-Id: <1381932806-13506-1-git-send-email-johan.hedberg@gmail.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: From: Johan Hedberg Right now we do not allow user space to use connection oriented channels on LE, and the only CID that can be used is the Attribute Protocol one. These restrictions went away together with the recent refactoring of the L2CAP code, but this patch puts them back to their appropriate places. Signed-off-by: Johan Hedberg --- net/bluetooth/l2cap_sock.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 68f486a..95498d5 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -72,6 +72,15 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) if (!bdaddr_type_is_valid(la.l2_bdaddr_type)) return -EINVAL; + if (bdaddr_type_is_le(la.l2_bdaddr_type)) { + /* Connection oriented channels are not supported on LE */ + if (la.l2_psm) + return -EINVAL; + /* We only allow ATT user space socket */ + if (la.l2_cid != L2CAP_CID_ATT) + return -EINVAL; + } + lock_sock(sk); if (sk->sk_state != BT_OPEN) { @@ -156,6 +165,15 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, if (chan->src_type != BDADDR_BREDR && la.l2_bdaddr_type == BDADDR_BREDR) return -EINVAL; + if (bdaddr_type_is_le(la.l2_bdaddr_type)) { + /* Connection oriented channels are not supported on LE */ + if (la.l2_psm) + return -EINVAL; + /* We only allow ATT user space socket */ + if (la.l2_cid != L2CAP_CID_ATT) + return -EINVAL; + } + err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid), &la.l2_bdaddr, la.l2_bdaddr_type); if (err) -- 1.8.3.1