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Bluetooth: Rename L2CAP_CHAN_CONN_FIX_A2MP to L2CAP_CHAN_FIXED 

There's no reason why A2MP should need or deserve its on channel type.
Instead we should be able to group all fixed CID users under a single
channel type and reuse as much code as possible for them. Where CID
specific exceptions are needed the chan-scid value can be used.

This patch renames the current A2MP channel type to a generic one and
thereby paves the way to allow converting ATT and SMP (and any future
fixed channel protocols) to use the new channel type.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hedberg 2014-01-24 10:35:40 +02:00
parent 03a0c5d61c
commit 2338a7e044
3 changed files with 13 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/net/bluetooth/l2cap.h
View File

@ -651,7 +651,7 @@ struct l2cap_user {
#define L2CAP_CHAN_RAW 1
#define L2CAP_CHAN_CONN_LESS 2
#define L2CAP_CHAN_CONN_ORIENTED 3
#define L2CAP_CHAN_CONN_FIX_A2MP 4
#define L2CAP_CHAN_FIXED 4
/* ----- L2CAP socket info ----- */
#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)

8
net/bluetooth/a2mp.c
View File

@ -235,7 +235,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
BT_DBG("chan %p state %s", chan,
state_to_string(chan->state));
if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP)
if (chan->scid == L2CAP_CID_A2MP)
continue;
l2cap_chan_lock(chan);
@ -726,7 +726,11 @@ static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked)
BT_DBG("chan %p", chan);
chan->chan_type = L2CAP_CHAN_CONN_FIX_A2MP;
chan->chan_type = L2CAP_CHAN_FIXED;
chan->scid = L2CAP_CID_A2MP;
chan->dcid = L2CAP_CID_A2MP;
chan->omtu = L2CAP_A2MP_DEFAULT_MTU;
chan->imtu = L2CAP_A2MP_DEFAULT_MTU;
chan->flush_to = L2CAP_DEFAULT_FLUSH_TO;
chan->ops = &a2mp_chan_ops;

15
net/bluetooth/l2cap_core.c
View File

@ -519,11 +519,8 @@ void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
chan->omtu = L2CAP_DEFAULT_MTU;
break;
case L2CAP_CHAN_CONN_FIX_A2MP:
chan->scid = L2CAP_CID_A2MP;
chan->dcid = L2CAP_CID_A2MP;
chan->omtu = L2CAP_A2MP_DEFAULT_MTU;
chan->imtu = L2CAP_A2MP_DEFAULT_MTU;
case L2CAP_CHAN_FIXED:
/* Caller will set CID and CID specific MTU values */
break;
default:
@ -571,7 +568,7 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
chan->conn = NULL;
if (chan->chan_type != L2CAP_CHAN_CONN_FIX_A2MP)
if (chan->scid != L2CAP_CID_A2MP)
hci_conn_drop(conn->hcon);
if (mgr && mgr->bredr_chan == chan)
@ -1310,7 +1307,7 @@ static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err)
__clear_ack_timer(chan);
}
if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP) {
if (chan->scid == L2CAP_CID_A2MP) {
l2cap_state_change(chan, BT_DISCONN);
return;
}
@ -1508,7 +1505,7 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
l2cap_chan_lock(chan);
if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP) {
if (chan->scid == L2CAP_CID_A2MP) {
l2cap_chan_unlock(chan);
continue;
}
@ -7245,7 +7242,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
BT_DBG("chan %p scid 0x%4.4x state %s", chan, chan->scid,
state_to_string(chan->state));
if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP) {
if (chan->scid == L2CAP_CID_A2MP) {
l2cap_chan_unlock(chan);
continue;
}