Bluetooth: Add support for deferring RFCOMM connection setup
In order to decide if listening RFCOMM sockets should be accept()ed
the BD_ADDR of the remote device needs to be known. This patch adds
a socket option which defines a timeout for deferring the actual
connection setup.
The connection setup is done after reading from the socket for the
first time. Until then writing to the socket returns ENOTCONN.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index 4dc8d92..71b45f4 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -185,6 +185,7 @@
u8 out;
u32 link_mode;
+ u32 defer_setup;
uint mtu;
uint cfc;
@@ -202,10 +203,11 @@
#define RFCOMM_RX_THROTTLED 0
#define RFCOMM_TX_THROTTLED 1
#define RFCOMM_TIMED_OUT 2
-#define RFCOMM_MSC_PENDING 3
+#define RFCOMM_MSC_PENDING 3
#define RFCOMM_AUTH_PENDING 4
#define RFCOMM_AUTH_ACCEPT 5
#define RFCOMM_AUTH_REJECT 6
+#define RFCOMM_DEFER_SETUP 7
/* Scheduling flags and events */
#define RFCOMM_SCHED_STATE 0
@@ -239,6 +241,7 @@
int rfcomm_dlc_send(struct rfcomm_dlc *d, struct sk_buff *skb);
int rfcomm_dlc_set_modem_status(struct rfcomm_dlc *d, u8 v24_sig);
int rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig);
+void rfcomm_dlc_accept(struct rfcomm_dlc *d);
#define rfcomm_dlc_lock(d) spin_lock(&d->lock)
#define rfcomm_dlc_unlock(d) spin_unlock(&d->lock)
@@ -333,7 +336,6 @@
bdaddr_t src;
bdaddr_t dst;
u8 channel;
-
};
struct rfcomm_dev_info {