[Bluetooth] Disable disconnect timer during Simple Pairing
During the Simple Pairing process the HCI disconnect timer must be
disabled. The way to do this is by holding a reference count of the
HCI connection. The Simple Pairing process on both sides starts with
an IO Capabilities Request and ends with Simple Pairing Complete.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index e476761..7c9ac01 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1464,6 +1464,38 @@
hci_dev_unlock(hdev);
}
+static inline void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_ev_io_capa_request *ev = (void *) skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s", hdev->name);
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+ if (conn)
+ hci_conn_hold(conn);
+
+ hci_dev_unlock(hdev);
+}
+
+static inline void hci_simple_pair_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s", hdev->name);
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
+ if (conn)
+ hci_conn_put(conn);
+
+ hci_dev_unlock(hdev);
+}
+
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_event_hdr *hdr = (void *) skb->data;
@@ -1588,6 +1620,14 @@
hci_extended_inquiry_result_evt(hdev, skb);
break;
+ case HCI_EV_IO_CAPA_REQUEST:
+ hci_io_capa_request_evt(hdev, skb);
+ break;
+
+ case HCI_EV_SIMPLE_PAIR_COMPLETE:
+ hci_simple_pair_complete_evt(hdev, skb);
+ break;
+
default:
BT_DBG("%s event 0x%x", hdev->name, event);
break;