Re: [RFC 8/8] Bluetooth: Add chan->ops->authorize

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Gustavo -

On Wed, 23 May 2012, Gustavo Padovan wrote:

From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>

When DEFER_SETUP is set authorize() 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 4f81d08..94e375a 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -531,6 +531,7 @@ struct l2cap_ops {
	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
					       unsigned long len, int nb);
	void			(*ready) (void *data);
+	void			(*authorize) (void *data);
};

I'm trying to think of a name more specific to the deferred connection feature than "authorize"... There's a lot of use of "auth" to refer to "authentication", so it could be confusing to throw "authorize" in to the mix.

"deferred_connect"? "pending_connection"?
"defer"?


struct l2cap_conn {
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 1305b3b..22ba699 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 = cpu_to_le16(L2CAP_CR_PEND);
					rsp.status = cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
-					if (parent)
-						parent->sk_data_ready(parent, 0);
-
+					if(chan->ops->authorize)
+						chan->ops->authorize(chan->data);
				} else {
					__l2cap_state_change(chan, BT_CONFIG);
					rsp.result = 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->authorize)
+					chan->ops->authorize(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->authorize)
+						chan->ops->authorize(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 dac7b2c..d2a81f1 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1047,6 +1047,17 @@ static void l2cap_sock_ready_cb(void *data)
	release_sock(sk);
}

+static void l2cap_sock_authorize_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,
@@ -1056,6 +1067,7 @@ 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,
+	.authorize	= l2cap_sock_authorize_cb,
};

static void l2cap_sock_destruct(struct sock *sk)
--
1.7.10.1


--
Mat Martineau
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum

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