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Commit 726acbdc authored by Andre Eisenbach's avatar Andre Eisenbach
Browse files

LE: Disable background connections if RPA offloading is not supported 

If the local device does not support RPA offloading, background
connections to a resolvable random address will not work. Added callback
to indicate to the application writer that the requested operation is
not supported.

Bug: 16831527
Change-Id: I083d66b16704e997f52a40ea4daced3056b50ad5
parent 19125877

system/btif/src/btif_gatt_client.c

+19 −0
Original line number Diff line number Diff line
@@ -65,6 +65,9 @@ 
        BTIF_TRACE_DEBUG("%s", __FUNCTION__);\

    }



#define BLE_RESOLVE_ADDR_MSB                 0x40   /* bit7, bit6 is 01 to be resolvable random */

#define BLE_RESOLVE_ADDR_MASK                0xc0   /* bit 6, and bit7 */

#define BTM_BLE_IS_RESOLVE_BDA(x)           ((x[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB)



typedef enum {

    BTIF_GATTC_REGISTER_APP = 1000,
@@ -1113,7 +1116,23 @@ static void btgattc_handle_event(uint16_t event, char* p_param) 


            // Mark background connections

            if (!p_cb->is_direct)

            {

                // Check if RPA offloading is supported, otherwise, do not start

                // background connection, since it will not connect after address

                // changes

                if (BTM_BLE_IS_RESOLVE_BDA(p_cb->bd_addr.address))

                {

                    tBTM_BLE_VSC_CB vnd_capabilities;

                    BTM_BleGetVendorCapabilities(&vnd_capabilities);

                    if (!vnd_capabilities.rpa_offloading)

                    {

                        HAL_CBACK(bt_gatt_callbacks, client->open_cb, 0, BT_STATUS_UNSUPPORTED,

                                        p_cb->client_if, &p_cb->bd_addr);

                        return;

                    }

                }

                BTA_DmBleSetBgConnType(BTM_BLE_CONN_AUTO, NULL);

            }



            switch(device_type)

            {