Bluetooth: Fix initializing conn_params in scan phase

This patch makes sure that conn_params that were created just for
explicit_connect, will get properly deleted during cleanup.

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

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index fe99025..2dda439 100644 (file)
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1008,15 +1008,23 @@ static int hci_explicit_conn_params_set(struct hci_request *req,
        if (is_connected(hdev, addr, addr_type))
                return -EISCONN;
 
-       params = hci_conn_params_add(hdev, addr, addr_type);
-       if (!params)
-               return -EIO;
+       params = hci_conn_params_lookup(hdev, addr, addr_type);
+       if (!params) {
+               params = hci_conn_params_add(hdev, addr, addr_type);
+               if (!params)
+                       return -ENOMEM;
+
+               /* If we created new params, mark them to be deleted in
+                * hci_connect_le_scan_cleanup. It's different case than
+                * existing disabled params, those will stay after cleanup.
+                */
+               params->auto_connect = HCI_AUTO_CONN_EXPLICIT;
+       }
 
-       /* If we created new params, or existing params were marked as disabled,
-        * mark them to be used just once to connect.
-        */
+       /* We're trying to connect, so make sure params are at pend_le_conns */
        if (params->auto_connect == HCI_AUTO_CONN_DISABLED ||
-           params->auto_connect == HCI_AUTO_CONN_REPORT) {
+           params->auto_connect == HCI_AUTO_CONN_REPORT ||
+           params->auto_connect == HCI_AUTO_CONN_EXPLICIT) {
                list_del_init(&params->action);
                list_add(&params->action, &hdev->pend_le_conns);
        }

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0ed94e6..c4fe2fe 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3545,6 +3545,7 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
                                       auth_type);
        } else {
                u8 addr_type;
+               struct hci_conn_params *p;
 
                /* Convert from L2CAP channel address type to HCI address type
                 */
@@ -3562,7 +3563,10 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
                 * If connection parameters already exist, then they
                 * will be kept and this function does nothing.
                 */
-               hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
+               p = hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
+
+               if (p->auto_connect == HCI_AUTO_CONN_EXPLICIT)
+                       p->auto_connect = HCI_AUTO_CONN_DISABLED;
 
                conn = hci_connect_le_scan(hdev, &cp->addr.bdaddr,
                                           addr_type, sec_level,