[Bluetooth] Export details about authentication requirements

With the Simple Pairing support, the authentication requirements are
an explicit setting during the bonding process. Track and enforce the
requirements and allow higher layers like L2CAP and RFCOMM to increase
them if needed.

This patch introduces a new IOCTL that allows to query the current
authentication requirements. It is also possible to detect Simple
Pairing support in the kernel this way.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 5 insertions, 13 deletions

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 747fabd735d2..d62579b67959 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -193,19 +193,11 @@ static inline int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, unsign
 
                 return 0;
 
-        case HCISETSECMGR:
-                if (!capable(CAP_NET_ADMIN))
-                        return -EACCES;
-
-                if (arg)
-                        set_bit(HCI_SECMGR, &hdev->flags);
-                else
-                        clear_bit(HCI_SECMGR, &hdev->flags);
-
-                return 0;
-
         case HCIGETCONNINFO:
-                return hci_get_conn_info(hdev, (void __user *)arg);
+                return hci_get_conn_info(hdev, (void __user *) arg);
+
+        case HCIGETAUTHINFO:
+                return hci_get_auth_info(hdev, (void __user *) arg);
 
         default:
                 if (hdev->ioctl)
@@ -217,7 +209,7 @@ static inline int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, unsign
 static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 {
         struct sock *sk = sock->sk;
-        void __user *argp = (void __user *)arg;
+        void __user *argp = (void __user *) arg;
         int err;
 
         BT_DBG("cmd %x arg %lx", cmd, arg);