Bluetooth: mgmt: Implement support for passkey notification

This patch adds support for Secure Simple Pairing with devices that have
KeyboardOnly as their IO capability. Such devices will cause a passkey
notification on our side and optionally also keypress notifications.
Without this patch some keyboards cannot be paired using the mgmt
interface.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

1 files changed, 17 insertions, 0 deletions

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 05d4b83a0189..8e1ab59a9cef 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -99,6 +99,7 @@ static const u16 mgmt_events[] = {
         MGMT_EV_DEVICE_BLOCKED,
         MGMT_EV_DEVICE_UNBLOCKED,
         MGMT_EV_DEVICE_UNPAIRED,
+        MGMT_EV_PASSKEY_NOTIFY,
 };
 
 /*
@@ -3276,6 +3277,22 @@ int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
                                           MGMT_OP_USER_PASSKEY_NEG_REPLY);
 }
 
+int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
+                             u8 link_type, u8 addr_type, u32 passkey,
+                             u8 entered)
+{
+        struct mgmt_ev_passkey_notify ev;
+
+        BT_DBG("%s", hdev->name);
+
+        bacpy(&ev.addr.bdaddr, bdaddr);
+        ev.addr.type = link_to_bdaddr(link_type, addr_type);
+        ev.passkey = __cpu_to_le32(passkey);
+        ev.entered = entered;
+
+        return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL);
+}
+
 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
                      u8 addr_type, u8 status)
 {