From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
A2MP fixed channel do not have sk
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
---
include/net/bluetooth/l2cap.h | 1 +
net/bluetooth/a2mp.c | 3 +--
net/bluetooth/l2cap_core.c | 25 +++++++++++++++++++++++--
3 files changed, 25 insertions(+), 4 deletions(-)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 8cc739f..db47103 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -582,6 +582,7 @@ struct l2cap_conn {
#define L2CAP_CHAN_RAW 1
#define L2CAP_CHAN_CONN_LESS 2
#define L2CAP_CHAN_CONN_ORIENTED 3
+#define L2CAP_CHAN_CONN_FIX_A2MP 4
/* ----- L2CAP socket info ----- */
#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 4616da1..86b2078 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -465,8 +465,7 @@ static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn)
hci_conn_hold(conn->hcon);
- chan->omtu = L2CAP_A2MP_DEFAULT_MTU;
- chan->imtu = L2CAP_A2MP_DEFAULT_MTU;
+ chan->chan_type = L2CAP_CHAN_CONN_FIX_A2MP;
chan->flush_to = L2CAP_DEFAULT_FLUSH_TO;
chan->ops = &a2mp_chan_ops;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index ee333f0..b5c4229 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -450,6 +450,13 @@ static 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;
+ break;
+
default:
/* Raw socket can send/recv signalling messages only */
chan->scid = L2CAP_CID_SIGNALING;
@@ -480,7 +487,7 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
{
struct sock *sk = chan->sk;
struct l2cap_conn *conn = chan->conn;
- struct sock *parent = bt_sk(sk)->parent;
+ struct sock *parent;
__clear_chan_timer(chan);
@@ -496,6 +503,9 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
hci_conn_put(conn->hcon);
}
+ if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP)
+ goto clean;
+
lock_sock(sk);
__l2cap_state_change(chan, BT_CLOSED);
@@ -504,6 +514,7 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
if (err)
__l2cap_chan_set_err(chan, err);
+ parent = bt_sk(sk)->parent;
if (parent) {
bt_accept_unlink(sk);
parent->sk_data_ready(parent, 0);
@@ -515,6 +526,7 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
if (test_bit(CONF_NOT_COMPLETE, &chan->conf_state))
return;
+clean:
skb_queue_purge(&chan->tx_q);
if (chan->mode == L2CAP_MODE_ERTM) {
@@ -992,6 +1004,9 @@ static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *c
if (!conn)
return;
+ if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP)
+ return;
+
if (chan->mode == L2CAP_MODE_ERTM) {
__clear_retrans_timer(chan);
__clear_monitor_timer(chan);
@@ -1201,6 +1216,11 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
l2cap_chan_lock(chan);
+ if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP) {
+ l2cap_chan_unlock(chan);
+ continue;
+ }
+
if (conn->hcon->type == LE_LINK) {
if (smp_conn_security(conn, chan->sec_level))
l2cap_chan_ready(chan);
@@ -1581,7 +1601,8 @@ static void l2cap_monitor_timeout(struct work_struct *work)
l2cap_chan_lock(chan);
if (chan->retry_count >= chan->remote_max_tx) {
- l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
+ if (chan->chan_type != L2CAP_CHAN_CONN_FIX_A2MP)
+ l2cap_send_disconn_req(chan->conn, chan, ECONNABORTED);
l2cap_chan_unlock(chan);
l2cap_chan_put(chan);
return;
--
1.7.9.5
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