Bluetooth: Add a new HCI_USE_DEBUG_KEYS flag

To pave the way for actively using debug keys for pairing this patch
adds a new HCI_USE_DEBUG_KEYS flag for the purpose. When the flag is set
we issue a HCI_Write_SSP_Debug mode whenever HCI_Write_SSP_Mode(0x01)
has been issued as well as before issuing a HCI_Write_SSP_Mode(0x00)
command.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index ffb489e..cc2e88d 100644 (file)
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -125,6 +125,7 @@ enum {
        HCI_PAIRABLE,
        HCI_SERVICE_CACHE,
        HCI_KEEP_DEBUG_KEYS,
+       HCI_USE_DEBUG_KEYS,
        HCI_UNREGISTER,
        HCI_USER_CHANNEL,
 

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 747746b..69afbb2 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1877,6 +1877,10 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
                goto failed;
        }
 
+       if (!cp->val && test_bit(HCI_USE_DEBUG_KEYS, &hdev->dev_flags))
+               hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
+                            sizeof(cp->val), &cp->val);
+
        err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &cp->val);
        if (err < 0) {
                mgmt_pending_remove(cmd);
@@ -5784,10 +5788,14 @@ void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 
        hci_req_init(&req, hdev);
 
-       if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
+       if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
+               if (test_bit(HCI_USE_DEBUG_KEYS, &hdev->dev_flags))
+                       hci_req_add(&req, HCI_OP_WRITE_SSP_DEBUG_MODE,
+                                   sizeof(enable), &enable);
                update_eir(&req);
-       else
+       } else {
                clear_eir(&req);
+       }
 
        hci_req_run(&req, NULL);
 }