feat(ble/bluedroid): Support anonymous address type for white list

Author: esp-cjh

components/bt/host/bluedroid/api/include/api/esp_bt_defs.h

@@ -282,8 +282,11 @@ typedef enum {
 
 /// white list address type
 typedef enum {
-    BLE_WL_ADDR_TYPE_PUBLIC        = 0x00,
-    BLE_WL_ADDR_TYPE_RANDOM        = 0x01,
+    BLE_WL_ADDR_TYPE_PUBLIC        = 0x00,  /*!< Public Device Address */
+    BLE_WL_ADDR_TYPE_RANDOM        = 0x01,  /*!< Random Device Address */
+#if (CONFIG_BT_BLE_50_FEATURES_SUPPORTED)
+    BLE_WL_ADDR_TYPE_ANONYMOUS     = 0xFF,  /*!< Devices sending anonymous advertisements, use to enable anonymous advertising report for scanning */
+#endif // (CONFIG_BT_BLE_50_FEATURES_SUPPORTED)
 } esp_ble_wl_addr_type_t;
 
 /// Used to exchange the encryption key in the init key & response key

components/bt/host/bluedroid/stack/btm/btm_ble_bgconn.c

@@ -201,7 +201,12 @@ BOOLEAN btm_add_dev_to_controller (BOOLEAN to_add, BD_ADDR bd_addr, tBLE_ADDR_TY
 
     /* Controller do not support resolvable address now, only support public address and static random address */
     BOOLEAN  started = FALSE;
-    if(wl_addr_type > BLE_ADDR_RANDOM) {
+#if (BLE_50_FEATURE_SUPPORT == TRUE)
+    if (wl_addr_type > BLE_ADDR_RANDOM && wl_addr_type != BLE_ADDR_ANONYMOUS)
+#else
+    if (wl_addr_type > BLE_ADDR_RANDOM)
+#endif // #if (BLE_50_FEATURE_SUPPORT == TRUE)
+    {
         BTM_TRACE_ERROR("wl_addr_type is error\n");
         return started;
     }
@@ -278,7 +283,12 @@ void btm_enq_wl_dev_operation(BOOLEAN to_add, BD_ADDR bd_addr, tBLE_ADDR_TYPE ad
 *******************************************************************************/
 BOOLEAN btm_update_dev_to_white_list(BOOLEAN to_add, BD_ADDR bd_addr, tBLE_ADDR_TYPE addr_type, tBTM_UPDATE_WHITELIST_CBACK *update_wl_cb)
 {
-    if(addr_type > BLE_ADDR_RANDOM) {
+#if (BLE_50_FEATURE_SUPPORT == TRUE)
+    if (addr_type > BLE_ADDR_RANDOM && addr_type != BLE_ADDR_ANONYMOUS)
+#else
+    if (addr_type > BLE_ADDR_RANDOM)
+#endif // #if (BLE_50_FEATURE_SUPPORT == TRUE)
+    {
         BTM_TRACE_ERROR("%s address type is error, unable to add device", __func__);
         if (update_wl_cb){
             update_wl_cb(HCI_ERR_ILLEGAL_PARAMETER_FMT,to_add);

components/bt/host/bluedroid/stack/include/stack/bt_types.h

@@ -486,6 +486,7 @@ typedef struct {
 #define BLE_ADDR_RANDOM_ID      0x03
 #define BLE_ADDR_TYPE_MAX       BLE_ADDR_RANDOM_ID
 #define BLE_ADDR_UNKNOWN_TYPE   0XFF
+#define BLE_ADDR_ANONYMOUS      0xFF
 typedef UINT8 tBLE_ADDR_TYPE;
 #define BLE_ADDR_TYPE_MASK      (BLE_ADDR_RANDOM | BLE_ADDR_PUBLIC)