Bluetooth: Add module parameter to enable LE CoC support
Along with the L2CAP Connection Oriented Channels features it is now
allowed to use both custom fixed CIDs as well as PSM based (connection
oriented connections). Since the support for this (with the subsequent
patches) is still on an experimental stage, add a module parameter to
enable it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 7cc24d2..5a1d0cb 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -27,6 +27,7 @@
/* Bluetooth L2CAP sockets. */
+#include <linux/module.h>
#include <linux/export.h>
#include <net/bluetooth/bluetooth.h>
@@ -35,6 +36,8 @@
#include "smp.h"
+bool enable_lecoc;
+
static struct bt_sock_list l2cap_sk_list = {
.lock = __RW_LOCK_UNLOCKED(l2cap_sk_list.lock)
};
@@ -73,11 +76,11 @@
return -EINVAL;
if (bdaddr_type_is_le(la.l2_bdaddr_type)) {
- /* Connection oriented channels are not supported on LE */
- if (la.l2_psm)
+ if (!enable_lecoc && la.l2_psm)
return -EINVAL;
/* We only allow ATT user space socket */
- if (la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT))
+ if (la.l2_cid &&
+ la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT))
return -EINVAL;
}
@@ -189,11 +192,11 @@
return -EINVAL;
if (bdaddr_type_is_le(la.l2_bdaddr_type)) {
- /* Connection oriented channels are not supported on LE */
- if (la.l2_psm)
+ if (!enable_lecoc && la.l2_psm)
return -EINVAL;
/* We only allow ATT user space socket */
- if (la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT))
+ if (la.l2_cid &&
+ la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT))
return -EINVAL;
}
@@ -1469,3 +1472,6 @@
bt_sock_unregister(BTPROTO_L2CAP);
proto_unregister(&l2cap_proto);
}
+
+module_param(enable_lecoc, bool, 0644);
+MODULE_PARM_DESC(enable_lecoc, "Enable support for LE CoC");
