From 9f22398ce4baf816535415e65949d03f55a7973a Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Mon, 29 Apr 2013 19:35:38 +0300 Subject: Bluetooth: Fix hardcoding ATT CID in __l2cap_chan_add() Since in the future more than the ATT CID may be permissible we should not be hardcoding it for all LE connections in __l2cap_chan_add(). Instead, the source ATT CID should only be set if the destination is also ATT, and in other cases we should just use the existing dynamic CID allocation function. Assigning scid based on dcid means that whenever __l2cap_chan_add() is called that chan->dcid is properly initialized. l2cap_le_conn_ready() wasn't initializing is properly so this is also taken care of in this patch. Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan --- net/bluetooth/l2cap_core.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'net/bluetooth/l2cap_core.c') diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 640423b4f411..4803610187ed 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -504,8 +504,10 @@ void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan) if (conn->hcon->type == LE_LINK) { /* LE connection */ chan->omtu = L2CAP_DEFAULT_MTU; - chan->scid = L2CAP_CID_ATT; - chan->dcid = L2CAP_CID_ATT; + if (chan->dcid == L2CAP_CID_ATT) + chan->scid = L2CAP_CID_ATT; + else + chan->scid = l2cap_alloc_cid(conn); } else { /* Alloc CID for connection-oriented socket */ chan->scid = l2cap_alloc_cid(conn); @@ -1357,6 +1359,8 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) if (!chan) goto clean; + chan->dcid = L2CAP_CID_ATT; + sk = chan->sk; hci_conn_hold(conn->hcon); -- cgit v1.2.1