diff --git a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_ble_api.h b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_ble_api.h
index 0bfe4ce640..23ebca66b6 100644
--- a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_ble_api.h
+++ b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_ble_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief         This function is called to start BLE advertising with the corresponding data
  *                and parameters while BLE Mesh is working at the same time.
@@ -54,4 +58,8 @@ esp_err_t esp_ble_mesh_start_ble_advertising(const esp_ble_mesh_ble_adv_param_t
  */
 esp_err_t esp_ble_mesh_stop_ble_advertising(uint8_t index);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_BLE_API_H_ */
diff --git a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_common_api.h b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_common_api.h
index e218c51b74..634327d3f8 100644
--- a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_common_api.h
+++ b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_common_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief         Initialize BLE Mesh module.
  *                This API initializes provisioning capabilities and composition data information.
@@ -46,4 +50,8 @@ esp_err_t esp_ble_mesh_init(esp_ble_mesh_prov_t *prov, esp_ble_mesh_comp_t *comp
  */
 esp_err_t esp_ble_mesh_deinit(esp_ble_mesh_deinit_param_t *param);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_COMMON_API_H_ */
diff --git a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_local_data_operation_api.h b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_local_data_operation_api.h
index a1b0ff00de..df8e2428a4 100644
--- a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_local_data_operation_api.h
+++ b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_local_data_operation_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief         Get the model publish period, the unit is ms.
  *
@@ -104,4 +108,8 @@ esp_ble_mesh_model_t *esp_ble_mesh_find_sig_model(const esp_ble_mesh_elem_t *ele
  */
 const esp_ble_mesh_comp_t *esp_ble_mesh_get_composition_data(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_LOCAL_DATA_OPERATION_API_H_ */
diff --git a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_low_power_api.h b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_low_power_api.h
index c579b2e05f..b8fea9a9e3 100644
--- a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_low_power_api.h
+++ b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_low_power_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief       Enable BLE Mesh device LPN functionality.
  *
@@ -58,4 +62,8 @@ esp_err_t esp_ble_mesh_lpn_disable(bool force);
  */
 esp_err_t esp_ble_mesh_lpn_poll(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_LOW_POWER_API_H_ */
diff --git a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_networking_api.h b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_networking_api.h
index 0d5bcec30b..c2def986f2 100644
--- a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_networking_api.h
+++ b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_networking_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @brief: event, event code of user-defined model events; param, parameters of user-defined model events */
 typedef void (* esp_ble_mesh_model_cb_t)(esp_ble_mesh_model_cb_event_t event,
         esp_ble_mesh_model_cb_param_t *param);
@@ -381,4 +385,8 @@ uint16_t esp_ble_mesh_provisioner_get_prov_node_count(void);
  */
 const uint8_t *esp_ble_mesh_get_fast_prov_app_key(uint16_t net_idx, uint16_t app_idx);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_NETWORKING_API_H_ */
diff --git a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_provisioning_api.h b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_provisioning_api.h
index b2ebe07c9a..1df9363909 100644
--- a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_provisioning_api.h
+++ b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_provisioning_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @brief: event, event code of provisioning events; param, parameters of provisioning events */
 typedef void (* esp_ble_mesh_prov_cb_t)(esp_ble_mesh_prov_cb_event_t event,
                                         esp_ble_mesh_prov_cb_param_t *param);
@@ -367,4 +371,8 @@ esp_err_t esp_ble_mesh_set_fast_prov_info(esp_ble_mesh_fast_prov_info_t *fast_pr
  */
 esp_err_t esp_ble_mesh_set_fast_prov_action(esp_ble_mesh_fast_prov_action_t action);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_PROVISIONING_API_H_ */
diff --git a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_proxy_api.h b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_proxy_api.h
index 216a597ff4..00537558c5 100644
--- a/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_proxy_api.h
+++ b/components/bt/esp_ble_mesh/api/core/include/esp_ble_mesh_proxy_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief   Enable advertising with Node Identity.
  *
@@ -114,5 +118,9 @@ esp_err_t esp_ble_mesh_proxy_client_add_filter_addr(uint8_t conn_handle,
 esp_err_t esp_ble_mesh_proxy_client_remove_filter_addr(uint8_t conn_handle,
         uint16_t net_idx, uint16_t *addr, uint16_t addr_num);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_PROXY_API_H_ */
 
diff --git a/components/bt/esp_ble_mesh/api/esp_ble_mesh_defs.h b/components/bt/esp_ble_mesh/api/esp_ble_mesh_defs.h
index d0954fdbe5..61b6c10d65 100644
--- a/components/bt/esp_ble_mesh/api/esp_ble_mesh_defs.h
+++ b/components/bt/esp_ble_mesh/api/esp_ble_mesh_defs.h
@@ -31,6 +31,10 @@
 #define ESP_BLE_HOST_STATUS_CHECK(status)  do {} while (0)
 #endif
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*!< The maximum length of a BLE Mesh message, including Opcode, Payload and TransMIC */
 #define ESP_BLE_MESH_SDU_MAX_LEN            384
 
@@ -2083,4 +2087,8 @@ typedef union {
     } server_model_update_state;                /*!< Event parameter of ESP_BLE_MESH_SERVER_MODEL_UPDATE_STATE_COMP_EVT */
 } esp_ble_mesh_model_cb_param_t;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_DEFS_H_ */
diff --git a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_config_model_api.h b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_config_model_api.h
index 9d1785cffc..06d45e9bbf 100644
--- a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_config_model_api.h
+++ b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_config_model_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @def    ESP_BLE_MESH_MODEL_CFG_SRV
  *
  *  @brief  Define a new Config Server Model.
@@ -814,5 +818,9 @@ esp_err_t esp_ble_mesh_config_client_get_state(esp_ble_mesh_client_common_param_
 esp_err_t esp_ble_mesh_config_client_set_state(esp_ble_mesh_client_common_param_t *params,
         esp_ble_mesh_cfg_client_set_state_t *set_state);
 
-#endif /** _ESP_BLE_MESH_CONFIG_MODEL_API_H_ */
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ESP_BLE_MESH_CONFIG_MODEL_API_H_ */
 
diff --git a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_generic_model_api.h b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_generic_model_api.h
index 7d5496f1ad..e1758e1796 100644
--- a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_generic_model_api.h
+++ b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_generic_model_api.h
@@ -21,6 +21,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @def    ESP_BLE_MESH_MODEL_GEN_ONOFF_CLI
  *
  *  @brief  Define a new Generic OnOff Client Model.
@@ -1293,5 +1297,9 @@ typedef void (* esp_ble_mesh_generic_server_cb_t)(esp_ble_mesh_generic_server_cb
  */
 esp_err_t esp_ble_mesh_register_generic_server_callback(esp_ble_mesh_generic_server_cb_t callback);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_GENERIC_MODEL_API_H_ */
 
diff --git a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_health_model_api.h b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_health_model_api.h
index f0836756ec..e46ae79e3a 100644
--- a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_health_model_api.h
+++ b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_health_model_api.h
@@ -17,6 +17,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @def    ESP_BLE_MESH_MODEL_HEALTH_SRV
  *
  *  @brief  Define a new Health Server Model.
@@ -403,4 +407,8 @@ esp_err_t esp_ble_mesh_health_client_set_state(esp_ble_mesh_client_common_param_
  */
 esp_err_t esp_ble_mesh_health_server_fault_update(esp_ble_mesh_elem_t *element);
 
-#endif /** _ESP_BLE_MESH_HEALTH_MODEL_API_H_ */
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ESP_BLE_MESH_HEALTH_MODEL_API_H_ */
diff --git a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_lighting_model_api.h b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_lighting_model_api.h
index a8146fa527..4180eb9145 100644
--- a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_lighting_model_api.h
+++ b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_lighting_model_api.h
@@ -21,6 +21,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @def    ESP_BLE_MESH_MODEL_LIGHT_LIGHTNESS_CLI
  *
  *  @brief  Define a new Light Lightness Client Model.
@@ -1671,5 +1675,9 @@ typedef void (* esp_ble_mesh_lighting_server_cb_t)(esp_ble_mesh_lighting_server_
  */
 esp_err_t esp_ble_mesh_register_lighting_server_callback(esp_ble_mesh_lighting_server_cb_t callback);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_LIGHTING_MODEL_API_H_ */
 
diff --git a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_sensor_model_api.h b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_sensor_model_api.h
index c6eb7a7e27..5c43efe18e 100644
--- a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_sensor_model_api.h
+++ b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_sensor_model_api.h
@@ -21,6 +21,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @def    ESP_BLE_MESH_MODEL_SENSOR_CLI
  *
  *  @brief  Define a new Sensor Client Model.
@@ -706,6 +710,10 @@ typedef void (* esp_ble_mesh_sensor_server_cb_t)(esp_ble_mesh_sensor_server_cb_e
  */
 esp_err_t esp_ble_mesh_register_sensor_server_callback(esp_ble_mesh_sensor_server_cb_t callback);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_SENSOR_MODEL_API_H_ */
 
 
diff --git a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_time_scene_model_api.h b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_time_scene_model_api.h
index 9ec6529c52..f6414b709a 100644
--- a/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_time_scene_model_api.h
+++ b/components/bt/esp_ble_mesh/api/models/include/esp_ble_mesh_time_scene_model_api.h
@@ -21,6 +21,10 @@
 
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @def    ESP_BLE_MESH_MODEL_TIME_CLI
  *
  *  @brief  Define a new Time Client Model.
@@ -908,5 +912,9 @@ typedef void (* esp_ble_mesh_time_scene_server_cb_t)(esp_ble_mesh_time_scene_ser
  */
 esp_err_t esp_ble_mesh_register_time_scene_server_callback(esp_ble_mesh_time_scene_server_cb_t callback);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ESP_BLE_MESH_TIME_SCENE_MODEL_API_H_ */
 
diff --git a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_config_model.h b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_config_model.h
index f9920edbe6..db37bec696 100644
--- a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_config_model.h
+++ b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_config_model.h
@@ -18,6 +18,10 @@
 #include "btc/btc_manage.h"
 #include "esp_ble_mesh_config_model_api.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     BTC_BLE_MESH_ACT_CONFIG_CLIENT_GET_STATE,
     BTC_BLE_MESH_ACT_CONFIG_CLIENT_SET_STATE,
@@ -71,4 +75,8 @@ void bt_mesh_config_server_cb_evt_to_btc(u8_t evt_type,
         struct bt_mesh_msg_ctx *ctx,
         const u8_t *val, size_t len);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BTC_BLE_MESH_CONFIG_MODEL_H_ */
diff --git a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_generic_model.h b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_generic_model.h
index ca615a0fca..d87421dadc 100644
--- a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_generic_model.h
+++ b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_generic_model.h
@@ -18,6 +18,10 @@
 #include "btc/btc_manage.h"
 #include "esp_ble_mesh_generic_model_api.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     BTC_BLE_MESH_ACT_GENERIC_CLIENT_GET_STATE,
     BTC_BLE_MESH_ACT_GENERIC_CLIENT_SET_STATE,
@@ -73,4 +77,8 @@ void bt_mesh_generic_server_cb_evt_to_btc(u8_t evt_type,
 
 void btc_ble_mesh_generic_server_cb_handler(btc_msg_t *msg);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BTC_BLE_MESH_GENERIC_MODEL_H_ */
diff --git a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_health_model.h b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_health_model.h
index 90aba889a4..91a7755112 100644
--- a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_health_model.h
+++ b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_health_model.h
@@ -18,6 +18,10 @@
 #include "btc/btc_manage.h"
 #include "esp_ble_mesh_health_model_api.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     BTC_BLE_MESH_ACT_HEALTH_CLIENT_GET_STATE,
     BTC_BLE_MESH_ACT_HEALTH_CLIENT_SET_STATE,
@@ -84,4 +88,8 @@ void btc_ble_mesh_health_server_attention_on(struct bt_mesh_model *model, u8_t t
 
 void btc_ble_mesh_health_server_attention_off(struct bt_mesh_model *model);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BTC_BLE_MESH_HEALTH_MODEL_H_ */
diff --git a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_lighting_model.h b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_lighting_model.h
index 97e67001ae..453f2ee2c6 100644
--- a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_lighting_model.h
+++ b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_lighting_model.h
@@ -18,6 +18,10 @@
 #include "btc/btc_manage.h"
 #include "esp_ble_mesh_lighting_model_api.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     BTC_BLE_MESH_ACT_LIGHTING_CLIENT_GET_STATE,
     BTC_BLE_MESH_ACT_LIGHTING_CLIENT_SET_STATE,
@@ -74,5 +78,9 @@ void bt_mesh_lighting_server_cb_evt_to_btc(u8_t evt_type,
 
 void btc_ble_mesh_lighting_server_cb_handler(btc_msg_t *msg);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BTC_BLE_MESH_LIGHTING_MODEL_H_ */
 
diff --git a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_prov.h b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_prov.h
index 8c941ec6cc..2f7540e91f 100644
--- a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_prov.h
+++ b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_prov.h
@@ -20,6 +20,10 @@
 #include "provisioner_prov.h"
 #include "esp_ble_mesh_defs.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     BTC_BLE_MESH_ACT_MESH_INIT = 0,
     BTC_BLE_MESH_ACT_PROV_ENABLE,
@@ -309,4 +313,8 @@ void btc_ble_mesh_model_cb_handler(btc_msg_t *msg);
 void btc_ble_mesh_prov_call_handler(btc_msg_t *msg);
 void btc_ble_mesh_prov_cb_handler(btc_msg_t *msg);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BTC_BLE_MESH_PROV_H_ */
diff --git a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_sensor_model.h b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_sensor_model.h
index 307cd562d4..65a2af4f75 100644
--- a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_sensor_model.h
+++ b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_sensor_model.h
@@ -18,6 +18,10 @@
 #include "btc/btc_manage.h"
 #include "esp_ble_mesh_sensor_model_api.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     BTC_BLE_MESH_ACT_SENSOR_CLIENT_GET_STATE,
     BTC_BLE_MESH_ACT_SENSOR_CLIENT_SET_STATE,
@@ -73,5 +77,9 @@ void bt_mesh_sensor_server_cb_evt_to_btc(u8_t evt_type,
 
 void btc_ble_mesh_sensor_server_cb_handler(btc_msg_t *msg);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BTC_BLE_MESH_SENSOR_MODEL_H_ */
 
diff --git a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_time_scene_model.h b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_time_scene_model.h
index a2df94501a..7db8764b56 100644
--- a/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_time_scene_model.h
+++ b/components/bt/esp_ble_mesh/btc/include/btc_ble_mesh_time_scene_model.h
@@ -18,6 +18,10 @@
 #include "btc/btc_manage.h"
 #include "esp_ble_mesh_time_scene_model_api.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     BTC_BLE_MESH_ACT_TIME_SCENE_CLIENT_GET_STATE,
     BTC_BLE_MESH_ACT_TIME_SCENE_CLIENT_SET_STATE,
@@ -74,5 +78,9 @@ void bt_mesh_time_scene_server_cb_evt_to_btc(u8_t evt_type,
 
 void btc_ble_mesh_time_scene_server_cb_handler(btc_msg_t *msg);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BTC_BLE_MESH_TIME_SCENE_MODEL_H_ */
 
diff --git a/components/bt/esp_ble_mesh/mesh_common/include/mesh_common.h b/components/bt/esp_ble_mesh/mesh_common/include/mesh_common.h
index 737b8394e7..e4274b0a1a 100644
--- a/components/bt/esp_ble_mesh/mesh_common/include/mesh_common.h
+++ b/components/bt/esp_ble_mesh/mesh_common/include/mesh_common.h
@@ -31,6 +31,10 @@
 
 #include "mesh_access.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if CONFIG_BLE_MESH_ALLOC_FROM_PSRAM_FIRST
 #define bt_mesh_malloc(size)    heap_caps_malloc_prefer(size, 2, MALLOC_CAP_DEFAULT|MALLOC_CAP_SPIRAM, MALLOC_CAP_DEFAULT|MALLOC_CAP_INTERNAL)
 #define bt_mesh_calloc(size)    heap_caps_calloc_prefer(1, size, 2, MALLOC_CAP_DEFAULT|MALLOC_CAP_SPIRAM, MALLOC_CAP_DEFAULT|MALLOC_CAP_INTERNAL)
@@ -87,4 +91,8 @@ void bt_mesh_mutex_lock(bt_mesh_mutex_t *mutex);
 
 void bt_mesh_mutex_unlock(bt_mesh_mutex_t *mutex);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BLE_MESH_COMMON_H_ */
\ No newline at end of file
diff --git a/components/bt/esp_ble_mesh/mesh_common/include/mesh_kernel.h b/components/bt/esp_ble_mesh/mesh_common/include/mesh_kernel.h
index e0052e5289..fbe6d271e2 100644
--- a/components/bt/esp_ble_mesh/mesh_common/include/mesh_kernel.h
+++ b/components/bt/esp_ble_mesh/mesh_common/include/mesh_kernel.h
@@ -12,6 +12,10 @@
 #include "mesh_slist.h"
 #include "mesh_atomic.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* number of nsec per usec */
 #define NSEC_PER_USEC   1000
 
@@ -276,5 +280,9 @@ void bt_mesh_atomic_unlock(void);
 void bt_mesh_k_init(void);
 void bt_mesh_k_deinit(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BLE_MESH_KERNEL_H_ */
 
diff --git a/components/bt/esp_ble_mesh/mesh_common/include/mesh_trace.h b/components/bt/esp_ble_mesh/mesh_common/include/mesh_trace.h
index 821f5716cd..d41da6a8cd 100644
--- a/components/bt/esp_ble_mesh/mesh_common/include/mesh_trace.h
+++ b/components/bt/esp_ble_mesh/mesh_common/include/mesh_trace.h
@@ -11,6 +11,10 @@
 
 #include "esp_log.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Define common tracing for all */
 #ifndef LOG_LEVEL_ERROR
 #define LOG_LEVEL_ERROR     1
@@ -127,4 +131,8 @@
 #define NET_BUF_SIMPLE_ASSERT(cond)
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BLE_MESH_TRACE_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/access.h b/components/bt/esp_ble_mesh/mesh_core/access.h
index 944548c568..3e002686c6 100644
--- a/components/bt/esp_ble_mesh/mesh_core/access.h
+++ b/components/bt/esp_ble_mesh/mesh_core/access.h
@@ -11,6 +11,10 @@
 
 #include "net.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* bt_mesh_model.flags */
 enum {
     BLE_MESH_MOD_BIND_PENDING = BIT(0),
@@ -74,4 +78,8 @@ size_t bt_mesh_rx_appkey_size(void);
 
 struct bt_mesh_app_key *bt_mesh_rx_appkey_get(size_t index);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ACCESS_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/adv.h b/components/bt/esp_ble_mesh/mesh_core/adv.h
index 492ca28738..dc8649d130 100644
--- a/components/bt/esp_ble_mesh/mesh_core/adv.h
+++ b/components/bt/esp_ble_mesh/mesh_core/adv.h
@@ -13,6 +13,10 @@
 #include "mesh_access.h"
 #include "mesh_bearer_adapt.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Maximum advertising data payload for a single data type */
 #define BLE_MESH_ADV_DATA_SIZE 29
 
@@ -107,4 +111,8 @@ int bt_mesh_start_ble_advertising(const struct bt_mesh_ble_adv_param *param,
 int bt_mesh_stop_ble_advertising(u8_t index);
 #endif /* CONFIG_BLE_MESH_SUPPORT_BLE_ADV */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _ADV_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/beacon.h b/components/bt/esp_ble_mesh/mesh_core/beacon.h
index 4977942e78..a7dbdd81fe 100644
--- a/components/bt/esp_ble_mesh/mesh_core/beacon.h
+++ b/components/bt/esp_ble_mesh/mesh_core/beacon.h
@@ -11,6 +11,10 @@
 
 #include "net.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void bt_mesh_beacon_enable(void);
 void bt_mesh_beacon_disable(void);
 
@@ -24,4 +28,8 @@ void bt_mesh_beacon_create(struct bt_mesh_subnet *sub,
 void bt_mesh_beacon_init(void);
 void bt_mesh_beacon_deinit(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BEACON_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/crypto.h b/components/bt/esp_ble_mesh/mesh_core/crypto.h
index df98c0e95e..feed226139 100644
--- a/components/bt/esp_ble_mesh/mesh_core/crypto.h
+++ b/components/bt/esp_ble_mesh/mesh_core/crypto.h
@@ -13,6 +13,10 @@
 #include <string.h>
 #include "mesh_buf.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct bt_mesh_sg {
     const void *data;
     size_t len;
@@ -163,4 +167,8 @@ int bt_mesh_prov_decrypt(const u8_t key[16], u8_t nonce[13],
 int bt_mesh_prov_encrypt(const u8_t key[16], u8_t nonce[13],
                          const u8_t data[25], u8_t out[33]);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _CRYPTO_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/foundation.h b/components/bt/esp_ble_mesh/mesh_core/foundation.h
index 5e1148144f..21744efdd0 100644
--- a/components/bt/esp_ble_mesh/mesh_core/foundation.h
+++ b/components/bt/esp_ble_mesh/mesh_core/foundation.h
@@ -10,6 +10,10 @@
 
 #include "net.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define OP_APP_KEY_ADD                     BLE_MESH_MODEL_OP_1(0x00)
 #define OP_APP_KEY_UPDATE                  BLE_MESH_MODEL_OP_1(0x01)
 #define OP_DEV_COMP_DATA_STATUS            BLE_MESH_MODEL_OP_1(0x02)
@@ -181,4 +185,8 @@ static inline void key_idx_unpack(struct net_buf_simple *buf,
     net_buf_simple_pull(buf, 3);
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _FOUNDATION_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/friend.h b/components/bt/esp_ble_mesh/mesh_core/friend.h
index 6193e09241..f595ce7176 100644
--- a/components/bt/esp_ble_mesh/mesh_core/friend.h
+++ b/components/bt/esp_ble_mesh/mesh_core/friend.h
@@ -11,6 +11,10 @@
 
 #include "net.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 enum bt_mesh_friend_pdu_type {
     BLE_MESH_FRIEND_PDU_SINGLE,
     BLE_MESH_FRIEND_PDU_PARTIAL,
@@ -56,4 +60,8 @@ int bt_mesh_friend_deinit(void);
 
 void bt_mesh_friend_remove_lpn(u16_t lpn_addr);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _FRIEND_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/cfg_cli.h b/components/bt/esp_ble_mesh/mesh_core/include/cfg_cli.h
index 4d4adc6bcf..873d989858 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/cfg_cli.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/cfg_cli.h
@@ -20,6 +20,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Config client model common structure */
 typedef bt_mesh_client_user_data_t      bt_mesh_config_client_t;
 typedef bt_mesh_client_internal_data_t  config_internal_data_t;
@@ -288,6 +292,10 @@ int bt_mesh_cfg_net_transmit_get(struct bt_mesh_msg_ctx *ctx);
 
 int bt_mesh_cfg_net_transmit_set(struct bt_mesh_msg_ctx *ctx, u8_t transmit);
 
+#ifdef __cplusplus
+}
+#endif
+
 /**
  * @}
  */
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/cfg_srv.h b/components/bt/esp_ble_mesh/mesh_core/include/cfg_srv.h
index 69b60c2d19..fe9843239a 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/cfg_srv.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/cfg_srv.h
@@ -19,6 +19,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** Mesh Configuration Server Model Context */
 struct bt_mesh_cfg_srv {
     struct bt_mesh_model *model;
@@ -207,6 +211,10 @@ typedef union {
     } cfg_net_transmit_set;
 } bt_mesh_cfg_server_state_change_t;
 
+#ifdef __cplusplus
+}
+#endif
+
 /**
  * @}
  */
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/health_cli.h b/components/bt/esp_ble_mesh/mesh_core/include/health_cli.h
index b2127c57ac..52982eced3 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/health_cli.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/health_cli.h
@@ -20,6 +20,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Health client model common structure */
 typedef bt_mesh_client_user_data_t      bt_mesh_health_client_t;
 typedef bt_mesh_client_internal_data_t  health_internal_data_t;
@@ -67,6 +71,10 @@ struct bt_mesh_health_fault_status {
     struct net_buf_simple *fault_array;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 /**
  * @}
  */
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/health_srv.h b/components/bt/esp_ble_mesh/mesh_core/include/health_srv.h
index 71ccabef7c..02a21e2951 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/health_srv.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/health_srv.h
@@ -19,6 +19,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct bt_mesh_health_srv_cb {
     /* Clear registered faults */
     void (*fault_clear)(struct bt_mesh_model *model, u16_t company_id);
@@ -90,6 +94,10 @@ extern const struct bt_mesh_model_op bt_mesh_health_srv_op[];
 
 int bt_mesh_fault_update(struct bt_mesh_elem *elem);
 
+#ifdef __cplusplus
+}
+#endif
+
 /**
  * @}
  */
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/mesh_access.h b/components/bt/esp_ble_mesh/mesh_core/include/mesh_access.h
index 585b5719b1..11a63b1d3a 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/mesh_access.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/mesh_access.h
@@ -23,6 +23,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BLE_MESH_ADDR_UNASSIGNED   0x0000
 #define BLE_MESH_ADDR_ALL_NODES    0xffff
 #define BLE_MESH_ADDR_PROXIES      0xfffc
@@ -489,6 +493,10 @@ struct bt_mesh_comp {
     struct bt_mesh_elem *elem;
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 /**
  * @}
  */
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h b/components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h
index 6c18ae0b7b..17ae3c2149 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/mesh_bearer_adapt.h
@@ -15,6 +15,10 @@
 #include "mesh_uuid.h"
 #include "mesh_buf.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* BLE Mesh Max Connection Count */
 #ifdef CONFIG_BLUEDROID_ENABLED
 #define BLE_MESH_MAX_CONN   \
@@ -813,5 +817,9 @@ enum {
 
 int bt_mesh_update_exceptional_list(u8_t sub_code, u8_t type, void *info);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BLE_MESH_BEARER_ADRPT_H_ */
 
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/mesh_main.h b/components/bt/esp_ble_mesh/mesh_core/include/mesh_main.h
index e42f132c02..362c0bec66 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/mesh_main.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/mesh_main.h
@@ -20,6 +20,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     BLE_MESH_NO_OUTPUT       = 0,
     BLE_MESH_BLINK           = BIT(0),
@@ -633,6 +637,10 @@ void bt_mesh_lpn_set_cb(void (*cb)(u16_t friend_addr, bool established));
  */
 void bt_mesh_friend_set_cb(void (*cb)(bool establish, u16_t lpn_addr, u8_t reason));
 
+#ifdef __cplusplus
+}
+#endif
+
 /**
  * @}
  */
diff --git a/components/bt/esp_ble_mesh/mesh_core/include/mesh_proxy.h b/components/bt/esp_ble_mesh/mesh_core/include/mesh_proxy.h
index 0b14d9e184..5450aa3285 100644
--- a/components/bt/esp_ble_mesh/mesh_core/include/mesh_proxy.h
+++ b/components/bt/esp_ble_mesh/mesh_core/include/mesh_proxy.h
@@ -19,6 +19,10 @@
  * @{
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief Enable advertising with Node Identity.
  *
@@ -30,6 +34,10 @@
  */
 int bt_mesh_proxy_identity_enable(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 /**
  * @}
  */
diff --git a/components/bt/esp_ble_mesh/mesh_core/lpn.h b/components/bt/esp_ble_mesh/mesh_core/lpn.h
index 45573661a0..97ba929559 100644
--- a/components/bt/esp_ble_mesh/mesh_core/lpn.h
+++ b/components/bt/esp_ble_mesh/mesh_core/lpn.h
@@ -11,6 +11,10 @@
 
 #include "net.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 int bt_mesh_lpn_friend_update(struct bt_mesh_net_rx *rx,
                               struct net_buf_simple *buf);
 int bt_mesh_lpn_friend_offer(struct bt_mesh_net_rx *rx,
@@ -67,4 +71,8 @@ void bt_mesh_lpn_disable(bool force);
 int bt_mesh_lpn_init(void);
 int bt_mesh_lpn_deinit(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _LPN_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/mesh.h b/components/bt/esp_ble_mesh/mesh_core/mesh.h
index 75c89584de..5a409a891b 100644
--- a/components/bt/esp_ble_mesh/mesh_core/mesh.h
+++ b/components/bt/esp_ble_mesh/mesh_core/mesh.h
@@ -11,6 +11,10 @@
 
 #include "net.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BLE_MESH_KEY_PRIMARY 0x0000
 #define BLE_MESH_KEY_ANY     0xffff
 
@@ -21,4 +25,8 @@
 
 struct bt_mesh_net;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _MESH_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/net.h b/components/bt/esp_ble_mesh/mesh_core/net.h
index abdb57450f..30ab454403 100644
--- a/components/bt/esp_ble_mesh/mesh_core/net.h
+++ b/components/bt/esp_ble_mesh/mesh_core/net.h
@@ -12,6 +12,10 @@
 
 #include "mesh_access.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BLE_MESH_NET_FLAG_KR       BIT(0)
 #define BLE_MESH_NET_FLAG_IVU      BIT(1)
 
@@ -417,4 +421,8 @@ static inline void send_cb_finalize(const struct bt_mesh_send_cb *cb,
     }
 }
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _NET_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/prov.h b/components/bt/esp_ble_mesh/mesh_core/prov.h
index 782d869214..a1872bd844 100644
--- a/components/bt/esp_ble_mesh/mesh_core/prov.h
+++ b/components/bt/esp_ble_mesh/mesh_core/prov.h
@@ -12,6 +12,10 @@
 #include "mesh_main.h"
 #include "mesh_bearer_adapt.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void bt_mesh_pb_adv_recv(struct net_buf_simple *buf);
 
 bool bt_prov_active(void);
@@ -31,4 +35,8 @@ int bt_mesh_prov_deinit(void);
 void bt_mesh_prov_complete(u16_t net_idx, const u8_t net_key[16], u16_t addr, u8_t flags, u32_t iv_index);
 void bt_mesh_prov_reset(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _PROV_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/provisioner_main.h b/components/bt/esp_ble_mesh/mesh_core/provisioner_main.h
index 89de935fe4..f5552cd242 100644
--- a/components/bt/esp_ble_mesh/mesh_core/provisioner_main.h
+++ b/components/bt/esp_ble_mesh/mesh_core/provisioner_main.h
@@ -18,6 +18,10 @@
 #include "net.h"
 #include "mesh_bearer_adapt.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BLE_MESH_INVALID_NODE_INDEX     0xFFFF
 #define BLE_MESH_NODE_NAME_SIZE         31
 
@@ -134,4 +138,8 @@ const u8_t *bt_mesh_get_fast_prov_net_key(u16_t net_idx);
 
 const u8_t *bt_mesh_get_fast_prov_app_key(u16_t net_idx, u16_t app_idx);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _PROVISIONER_MAIN_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/provisioner_prov.h b/components/bt/esp_ble_mesh/mesh_core/provisioner_prov.h
index ab5876b403..05071fe820 100644
--- a/components/bt/esp_ble_mesh/mesh_core/provisioner_prov.h
+++ b/components/bt/esp_ble_mesh/mesh_core/provisioner_prov.h
@@ -18,6 +18,10 @@
 #include "mesh_main.h"
 #include "mesh_bearer_adapt.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if !CONFIG_BLE_MESH_PROVISIONER
 
 #define CONFIG_BLE_MESH_PBA_SAME_TIME   0
@@ -425,4 +429,8 @@ u8_t bt_mesh_set_fast_prov_unicast_addr_range(u16_t min, u16_t max);
  */
 void bt_mesh_set_fast_prov_flags_iv_index(u8_t flags, u32_t iv_index);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _PROVISIONER_PROV_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/proxy_client.h b/components/bt/esp_ble_mesh/mesh_core/proxy_client.h
index 18943f8243..5ca3ea703e 100644
--- a/components/bt/esp_ble_mesh/mesh_core/proxy_client.h
+++ b/components/bt/esp_ble_mesh/mesh_core/proxy_client.h
@@ -18,6 +18,10 @@
 #include "net.h"
 #include "mesh_bearer_adapt.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BLE_MESH_PROXY_ADV_NET_ID           0x00
 #define BLE_MESH_PROXY_ADV_NODE_ID          0x01
 
@@ -100,4 +104,8 @@ int bt_mesh_proxy_client_send_cfg(u8_t conn_handle, u16_t net_idx, struct bt_mes
 int bt_mesh_proxy_prov_client_init(void);
 int bt_mesh_proxy_prov_client_deinit(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _PROXY_CLIENT_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/proxy_server.h b/components/bt/esp_ble_mesh/mesh_core/proxy_server.h
index df4a73eda7..724561f417 100644
--- a/components/bt/esp_ble_mesh/mesh_core/proxy_server.h
+++ b/components/bt/esp_ble_mesh/mesh_core/proxy_server.h
@@ -13,6 +13,10 @@
 #include "net.h"
 #include "mesh_bearer_adapt.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BLE_MESH_PROXY_NET_PDU   0x00
 #define BLE_MESH_PROXY_BEACON    0x01
 #define BLE_MESH_PROXY_CONFIG    0x02
@@ -62,4 +66,8 @@ void bt_mesh_proxy_addr_add(struct net_buf_simple *buf, u16_t addr);
 int bt_mesh_proxy_init(void);
 int bt_mesh_proxy_deinit(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _PROXY_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/settings.h b/components/bt/esp_ble_mesh/mesh_core/settings.h
index 61d3e0ea9b..52a7b2cd0f 100644
--- a/components/bt/esp_ble_mesh/mesh_core/settings.h
+++ b/components/bt/esp_ble_mesh/mesh_core/settings.h
@@ -10,6 +10,10 @@
 #include "net.h"
 #include "provisioner_main.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 int settings_core_init(void);
 int settings_core_load(void);
 int settings_core_commit(void);
@@ -58,4 +62,8 @@ void bt_mesh_store_node_comp_data(struct bt_mesh_node *node);
 int bt_mesh_settings_init(void);
 int bt_mesh_settings_deinit(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SETTINGS_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/test.h b/components/bt/esp_ble_mesh/mesh_core/test.h
index 4b5c597065..ffb054f3c8 100644
--- a/components/bt/esp_ble_mesh/mesh_core/test.h
+++ b/components/bt/esp_ble_mesh/mesh_core/test.h
@@ -12,6 +12,10 @@
 
 #include "mesh_bearer_adapt.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 int bt_mesh_test(void);
 
 struct bt_mesh_device_network_info {
@@ -41,4 +45,8 @@ int bt_mesh_test_start_scanning(bool wl_en);
 
 int bt_mesh_test_stop_scanning(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _BLE_MESH_TEST_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_core/transport.h b/components/bt/esp_ble_mesh/mesh_core/transport.h
index 31356c46be..8708767278 100644
--- a/components/bt/esp_ble_mesh/mesh_core/transport.h
+++ b/components/bt/esp_ble_mesh/mesh_core/transport.h
@@ -12,6 +12,10 @@
 
 #include "net.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define TRANS_SEQ_AUTH_NVAL            0xffffffffffffffff
 
 #define BLE_MESH_TX_SDU_MAX            (CONFIG_BLE_MESH_TX_SEG_MAX * 12)
@@ -114,4 +118,8 @@ void bt_mesh_heartbeat_send(void);
 int bt_mesh_app_key_get(const struct bt_mesh_subnet *subnet, u16_t app_idx,
                         const u8_t **key, u8_t *aid,  u8_t role, u16_t dst);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _TRANSPORT_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/client/include/client_common.h b/components/bt/esp_ble_mesh/mesh_models/client/include/client_common.h
index ddf743b32f..a39bcb5424 100644
--- a/components/bt/esp_ble_mesh/mesh_models/client/include/client_common.h
+++ b/components/bt/esp_ble_mesh/mesh_models/client/include/client_common.h
@@ -17,6 +17,10 @@
 
 #include "mesh_access.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** Client model opcode pair table */
 typedef struct {
     u32_t cli_op;       /* Client message opcode */
@@ -127,5 +131,9 @@ typedef struct {
  */
 int bt_mesh_set_client_model_role(bt_mesh_role_param_t *common);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _CLIENT_COMMON_H_ */
 
diff --git a/components/bt/esp_ble_mesh/mesh_models/client/include/generic_client.h b/components/bt/esp_ble_mesh/mesh_models/client/include/generic_client.h
index ddee425ac8..eeda99fc3a 100644
--- a/components/bt/esp_ble_mesh/mesh_models/client/include/generic_client.h
+++ b/components/bt/esp_ble_mesh/mesh_models/client/include/generic_client.h
@@ -21,6 +21,10 @@
 
 #include "client_common.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Generic client model common structure */
 typedef bt_mesh_client_user_data_t      bt_mesh_generic_client_t;
 typedef bt_mesh_client_internal_data_t  generic_internal_data_t;
@@ -566,4 +570,8 @@ int bt_mesh_generic_client_get_state(bt_mesh_client_common_param_t *common, void
  */
 int bt_mesh_generic_client_set_state(bt_mesh_client_common_param_t *common, void *set, void *status);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _GENERIC_CLIENT_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/client/include/lighting_client.h b/components/bt/esp_ble_mesh/mesh_models/client/include/lighting_client.h
index 309a7c57ea..7867f10ad5 100644
--- a/components/bt/esp_ble_mesh/mesh_models/client/include/lighting_client.h
+++ b/components/bt/esp_ble_mesh/mesh_models/client/include/lighting_client.h
@@ -21,6 +21,10 @@
 
 #include "client_common.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Light client model common structure */
 typedef bt_mesh_client_user_data_t      bt_mesh_light_client_t;
 typedef bt_mesh_client_internal_data_t  light_internal_data_t;
@@ -536,4 +540,8 @@ int bt_mesh_light_client_get_state(bt_mesh_client_common_param_t *common, void *
  */
 int bt_mesh_light_client_set_state(bt_mesh_client_common_param_t *common, void *set, void *status);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _LIGHTING_CLIENT_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/client/include/sensor_client.h b/components/bt/esp_ble_mesh/mesh_models/client/include/sensor_client.h
index 046e099166..135eaf7995 100644
--- a/components/bt/esp_ble_mesh/mesh_models/client/include/sensor_client.h
+++ b/components/bt/esp_ble_mesh/mesh_models/client/include/sensor_client.h
@@ -21,6 +21,10 @@
 
 #include "client_common.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Sensor Client Model Context */
 extern const struct bt_mesh_model_op sensor_cli_op[];
 
@@ -171,4 +175,8 @@ int bt_mesh_sensor_client_get_state(bt_mesh_client_common_param_t *common, void
  */
 int bt_mesh_sensor_client_set_state(bt_mesh_client_common_param_t *common, void *set, void *status);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SENSOR_CLIENT_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/client/include/time_scene_client.h b/components/bt/esp_ble_mesh/mesh_models/client/include/time_scene_client.h
index de978d0119..11a917f41c 100644
--- a/components/bt/esp_ble_mesh/mesh_models/client/include/time_scene_client.h
+++ b/components/bt/esp_ble_mesh/mesh_models/client/include/time_scene_client.h
@@ -21,6 +21,10 @@
 
 #include "client_common.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Time scene client model common structure */
 typedef bt_mesh_client_user_data_t      bt_mesh_time_scene_client_t;
 typedef bt_mesh_client_internal_data_t  time_scene_internal_data_t;
@@ -281,4 +285,8 @@ int bt_mesh_time_scene_client_get_state(bt_mesh_client_common_param_t *common, v
  */
 int bt_mesh_time_scene_client_set_state(bt_mesh_client_common_param_t *common, void *set, void *status);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _TIME_SCENE_CLIENT_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/common/include/model_opcode.h b/components/bt/esp_ble_mesh/mesh_models/common/include/model_opcode.h
index 95def6c2c4..00ac913fbe 100644
--- a/components/bt/esp_ble_mesh/mesh_models/common/include/model_opcode.h
+++ b/components/bt/esp_ble_mesh/mesh_models/common/include/model_opcode.h
@@ -17,6 +17,10 @@
 
 #include "mesh_access.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Generic OnOff Message Opcode */
 #define BLE_MESH_MODEL_OP_GEN_ONOFF_GET                          BLE_MESH_MODEL_OP_2(0x82, 0x01)
 #define BLE_MESH_MODEL_OP_GEN_ONOFF_SET                          BLE_MESH_MODEL_OP_2(0x82, 0x02)
@@ -273,4 +277,8 @@
 #define BLE_MESH_MODEL_OP_LIGHT_LC_PROPERTY_SET_UNACK            BLE_MESH_MODEL_OP_1(0x63)
 #define BLE_MESH_MODEL_OP_LIGHT_LC_PROPERTY_STATUS               BLE_MESH_MODEL_OP_1(0x64)
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _MODEL_OPCODE_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/server/include/device_property.h b/components/bt/esp_ble_mesh/mesh_models/server/include/device_property.h
index 4f69a44287..833eadbf10 100644
--- a/components/bt/esp_ble_mesh/mesh_models/server/include/device_property.h
+++ b/components/bt/esp_ble_mesh/mesh_models/server/include/device_property.h
@@ -17,6 +17,10 @@
 
 #include "mesh_types.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * BLE Mesh Device Properties.
  *
@@ -1042,4 +1046,8 @@ typedef u16_t bt_mesh_volume_flow_t;
 
 u8_t bt_mesh_get_dev_prop_len(u16_t prop_id);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _DEVICE_PROPERTY_H_ */
\ No newline at end of file
diff --git a/components/bt/esp_ble_mesh/mesh_models/server/include/generic_server.h b/components/bt/esp_ble_mesh/mesh_models/server/include/generic_server.h
index 4ab53eddab..241f1112ab 100644
--- a/components/bt/esp_ble_mesh/mesh_models/server/include/generic_server.h
+++ b/components/bt/esp_ble_mesh/mesh_models/server/include/generic_server.h
@@ -11,6 +11,10 @@
 
 #include "server_common.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct bt_mesh_gen_onoff_state {
     u8_t onoff;
     u8_t target_onoff;
@@ -386,4 +390,8 @@ int bt_mesh_gen_admin_prop_srv_deinit(struct bt_mesh_model *model, bool primary)
 int bt_mesh_gen_manu_prop_srv_deinit(struct bt_mesh_model *model, bool primary);
 int bt_mesh_gen_client_prop_srv_deinit(struct bt_mesh_model *model, bool primary);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _GENERIC_SERVER_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/server/include/lighting_server.h b/components/bt/esp_ble_mesh/mesh_models/server/include/lighting_server.h
index dd39ce0068..34195dd0d1 100644
--- a/components/bt/esp_ble_mesh/mesh_models/server/include/lighting_server.h
+++ b/components/bt/esp_ble_mesh/mesh_models/server/include/lighting_server.h
@@ -11,6 +11,10 @@
 
 #include "server_common.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct bt_mesh_light_lightness_state {
     u16_t lightness_linear;
     u16_t target_lightness_linear;
@@ -527,4 +531,8 @@ int bt_mesh_light_xyl_setup_srv_deinit(struct bt_mesh_model *model, bool primary
 int bt_mesh_light_lc_srv_deinit(struct bt_mesh_model *model, bool primary);
 int bt_mesh_light_lc_setup_srv_deinit(struct bt_mesh_model *model, bool primary);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _LIGHTING_SERVER_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/server/include/sensor_server.h b/components/bt/esp_ble_mesh/mesh_models/server/include/sensor_server.h
index 79be44bb7a..8d7d6fe06e 100644
--- a/components/bt/esp_ble_mesh/mesh_models/server/include/sensor_server.h
+++ b/components/bt/esp_ble_mesh/mesh_models/server/include/sensor_server.h
@@ -17,6 +17,10 @@
 
 #include "server_common.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Sensor Property ID related */
 #define INVALID_SENSOR_PROPERTY_ID          0x0000
 
@@ -249,4 +253,8 @@ int bt_mesh_sensor_setup_srv_init(struct bt_mesh_model *model, bool primary);
 int bt_mesh_sensor_srv_deinit(struct bt_mesh_model *model, bool primary);
 int bt_mesh_sensor_setup_srv_deinit(struct bt_mesh_model *model, bool primary);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SENSOR_SERVER_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/server/include/server_common.h b/components/bt/esp_ble_mesh/mesh_models/server/include/server_common.h
index 5647c0ea5b..08d6437b84 100644
--- a/components/bt/esp_ble_mesh/mesh_models/server/include/server_common.h
+++ b/components/bt/esp_ble_mesh/mesh_models/server/include/server_common.h
@@ -19,6 +19,10 @@
 #include <stdint.h>
 #include "mesh_access.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define BLE_MESH_SERVER_RSP_MAX_LEN         384
 
 #define BLE_MESH_SERVER_TRANS_MIC_SIZE      4
@@ -123,4 +127,8 @@ void bt_mesh_server_update_last_msg(struct bt_mesh_last_msg_info *last,
 
 struct net_buf_simple *bt_mesh_server_get_pub_msg(struct bt_mesh_model *model, u16_t msg_len);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SERVER_COMMON_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/server/include/state_binding.h b/components/bt/esp_ble_mesh/mesh_models/server/include/state_binding.h
index 18ee04ec71..c418192c2c 100644
--- a/components/bt/esp_ble_mesh/mesh_models/server/include/state_binding.h
+++ b/components/bt/esp_ble_mesh/mesh_models/server/include/state_binding.h
@@ -11,6 +11,10 @@
 
 #include "mesh_access.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef enum {
     GENERIC_ONOFF_STATE,
     GENERIC_LEVEL_STATE,
@@ -91,4 +95,8 @@ int bt_mesh_update_binding_state(struct bt_mesh_model *model,
                                  bt_mesh_server_state_type_t type,
                                  bt_mesh_server_state_value_t *value);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _STATE_BINDING_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/server/include/state_transition.h b/components/bt/esp_ble_mesh/mesh_models/server/include/state_transition.h
index 055192d992..163f72ef4d 100644
--- a/components/bt/esp_ble_mesh/mesh_models/server/include/state_transition.h
+++ b/components/bt/esp_ble_mesh/mesh_models/server/include/state_transition.h
@@ -15,6 +15,10 @@
 #include "lighting_server.h"
 #include "time_scene_server.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void bt_mesh_server_calc_remain_time(struct bt_mesh_state_transition *transition);
 
 /* APIs used to get server model transtion time values */
@@ -89,4 +93,8 @@ void bt_mesh_server_stop_transition(struct bt_mesh_state_transition *transition)
 
 void bt_mesh_server_start_transition(struct bt_mesh_state_transition *transition);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _STATE_TRANSITION_H_ */
diff --git a/components/bt/esp_ble_mesh/mesh_models/server/include/time_scene_server.h b/components/bt/esp_ble_mesh/mesh_models/server/include/time_scene_server.h
index c311da65fd..4c5c721bc3 100644
--- a/components/bt/esp_ble_mesh/mesh_models/server/include/time_scene_server.h
+++ b/components/bt/esp_ble_mesh/mesh_models/server/include/time_scene_server.h
@@ -17,6 +17,10 @@
 
 #include "server_common.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * 1. Mesh defines times based on International Atomic Time (TAI). The base
  *    representation of times is the number of seconds after 00:00:00 TAI
@@ -395,4 +399,8 @@ int bt_mesh_scene_setup_srv_deinit(struct bt_mesh_model *model, bool primary);
 int bt_mesh_scheduler_srv_deinit(struct bt_mesh_model *model, bool primary);
 int bt_mesh_scheduler_setup_srv_deinit(struct bt_mesh_model *model, bool primary);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _TIME_SCENE_SERVER_H_ */