[PATCH -v2 08/12] Bluetooth: Add chan->ops->defer()

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From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>

When DEFER_SETUP is set defer() will trigger an authorization request
to the userspace.

Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
---
 include/net/bluetooth/l2cap.h |    1 +
 net/bluetooth/l2cap_core.c    |   14 ++++++--------
 net/bluetooth/l2cap_sock.c    |   12 ++++++++++++
 3 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index c55b28f..25a85ab 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -535,6 +535,7 @@ struct l2cap_ops {
 	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
 					       unsigned long len, int nb);
 	void			(*ready) (void *data);
+	void			(*defer) (void *data);
 };
 
 struct l2cap_conn {
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 388bc70..9bd16a9 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1058,12 +1058,10 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 				lock_sock(sk);
 				if (test_bit(CONF_DEFER_SETUP,
 					     &chan->conf_state)) {
-					struct sock *parent = bt_sk(sk)->parent;
 					rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
 					rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
-					if (parent)
-						parent->sk_data_ready(parent, 0);
-
+					if(chan->ops->defer)
+						chan->ops->defer(chan->data);
 				} else {
 					__l2cap_state_change(chan, BT_CONFIG);
 					rsp.result = __constant_cpu_to_le16(L2CAP_CR_SUCCESS);
@@ -3380,7 +3378,8 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 				__l2cap_state_change(chan, BT_CONNECT2);
 				result = L2CAP_CR_PEND;
 				status = L2CAP_CS_AUTHOR_PEND;
-				parent->sk_data_ready(parent, 0);
+				if(chan->ops->defer)
+					chan->ops->defer(chan->data);
 			} else {
 				__l2cap_state_change(chan, BT_CONFIG);
 				result = L2CAP_CR_SUCCESS;
@@ -5408,11 +5407,10 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 			if (!status) {
 				if (test_bit(CONF_DEFER_SETUP,
 					     &chan->conf_state)) {
-					struct sock *parent = bt_sk(sk)->parent;
 					res = L2CAP_CR_PEND;
 					stat = L2CAP_CS_AUTHOR_PEND;
-					if (parent)
-						parent->sk_data_ready(parent, 0);
+					if(chan->ops->defer)
+						chan->ops->defer(chan->data);
 				} else {
 					__l2cap_state_change(chan, BT_CONFIG);
 					res = L2CAP_CR_SUCCESS;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 51d05a7..b19366c 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1046,6 +1046,17 @@ static void l2cap_sock_ready_cb(void *data)
 	release_sock(sk);
 }
 
+static void l2cap_sock_defer_cb(void *data)
+{
+	struct sock *sk = data;
+	struct sock *parent;
+
+	parent = bt_sk(sk)->parent;
+
+	if (parent)
+		parent->sk_data_ready(parent, 0);
+}
+
 static struct l2cap_ops l2cap_chan_ops = {
 	.name		= "L2CAP Socket Interface",
 	.new_connection	= l2cap_sock_new_connection_cb,
@@ -1055,6 +1066,7 @@ static struct l2cap_ops l2cap_chan_ops = {
 	.state_change	= l2cap_sock_state_change_cb,
 	.alloc_skb	= l2cap_sock_alloc_skb_cb,
 	.ready		= l2cap_sock_ready_cb,
+	.defer		= l2cap_sock_defer_cb,
 };
 
 static void l2cap_sock_destruct(struct sock *sk)
-- 
1.7.10.1

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