Bluetooth: Introduce a flag to track who really initiates authentication

Even though our side requests authentication, the original action that
caused it may be remotely triggered, such as an incoming L2CAP or RFCOMM
connect request. To track this information introduce a new hci_conn flag
called HCI_CONN_AUTH_INITIATOR.

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

2 files changed, 8 insertions, 0 deletions

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 76c5a38e5997..0d76054efd26 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1027,6 +1027,9 @@ auth:
         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
                 return 0;
 
+        if (initiator)
+                set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
+
         if (!hci_conn_auth(conn, sec_level, auth_type))
                 return 0;
 
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 495d6d5c1146..af2cdca03d73 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1645,6 +1645,8 @@ static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
         if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
                 struct hci_cp_auth_requested auth_cp;
 
+                set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
+
                 auth_cp.handle = __cpu_to_le16(conn->handle);
                 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
                              sizeof(auth_cp), &auth_cp);
@@ -2387,6 +2389,9 @@ check_auth:
 
         if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
                 struct hci_cp_auth_requested cp;
+
+                set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
+
                 cp.handle = __cpu_to_le16(conn->handle);
                 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
         }