diff options
| author | Marcel Holtmann <marcel@holtmann.org> | 2013-10-18 12:43:01 +0200 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2013-10-18 13:43:22 +0200 |
| commit | cc8dba2bc302442f96d15c027fceb7b103b20ae3 (patch) | |
| tree | cd7a8a6336a4aec2cbe37262499917bafc14712e /net | |
| parent | Bluetooth: Use hcon directly instead of conn->hcon where possible (diff) | |
| download | linux-cc8dba2bc302442f96d15c027fceb7b103b20ae3.tar.xz linux-cc8dba2bc302442f96d15c027fceb7b103b20ae3.zip | |
Bluetooth: Block ATT connection on LE when device is blocked
When the remote LE device is blocked, then do not create a L2CAP
channel for it. Without a channel, all packets for that connection
will be dropped.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/l2cap_core.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 97572970fba2..d52bd0d32621 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1382,14 +1382,16 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid, static void l2cap_le_conn_ready(struct l2cap_conn *conn) { + struct hci_conn *hcon = conn->hcon; struct sock *parent; struct l2cap_chan *chan, *pchan; + u8 dst_type; BT_DBG(""); /* Check if we have socket listening on cid */ pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_ATT, - &conn->hcon->src, &conn->hcon->dst); + &hcon->src, &hcon->dst); if (!pchan) return; @@ -1397,6 +1399,12 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) if (__l2cap_get_chan_by_dcid(conn, L2CAP_CID_ATT)) return; + dst_type = bdaddr_type(hcon, hcon->dst_type); + + /* If device is blocked, do not create a channel for it */ + if (hci_blacklist_lookup(hcon->hdev, &hcon->dst, dst_type)) + return; + parent = pchan->sk; lock_sock(parent); @@ -1407,10 +1415,10 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) chan->dcid = L2CAP_CID_ATT; - bacpy(&chan->src, &conn->hcon->src); - bacpy(&chan->dst, &conn->hcon->dst); - chan->src_type = bdaddr_type(conn->hcon, conn->hcon->src_type); - chan->dst_type = bdaddr_type(conn->hcon, conn->hcon->dst_type); + bacpy(&chan->src, &hcon->src); + bacpy(&chan->dst, &hcon->dst); + chan->src_type = bdaddr_type(hcon, hcon->src_type); + chan->dst_type = dst_type; __l2cap_chan_add(conn, chan); @@ -6438,6 +6446,9 @@ static void l2cap_att_channel(struct l2cap_conn *conn, BT_DBG("chan %p, len %d", chan, skb->len); + if (hci_blacklist_lookup(hcon->hdev, &hcon->dst, hcon->dst_type)) + goto drop; + if (chan->imtu < skb->len) goto drop; |