add mesh feature

components/esp32/include/esp_err.h

@@ -41,6 +41,7 @@ typedef int32_t esp_err_t;
 #define ESP_ERR_INVALID_MAC     0x10B
 
 #define ESP_ERR_WIFI_BASE       0x3000 /*!< Starting number of WiFi error codes */
+#define ESP_ERR_MESH_BASE       0x4000 /*!< Starting number of MESH error codes */
 
 /**
   * @brief Returns string for esp_err_t error codes

components/esp32/include/esp_mesh_internal.h

@@ -0,0 +1,162 @@
+// Copyright 2017-2018 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef __ESP_MESH_INTERNAL_H__
+#define __ESP_MESH_INTERNAL_H__
+
+#include "esp_err.h"
+#include "esp_wifi.h"
+#include "esp_wifi_types.h"
+#include "esp_wifi_internal.h"
+#include "esp_wifi_crypto_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*******************************************************
+ *                Constants
+ *******************************************************/
+
+/*******************************************************
+ *                Structures
+ *******************************************************/
+typedef struct {
+    int scan;          /**< minimum scan times before being a root, default:10 */
+    int vote;          /**< max vote times in self-healing, default:10000 */
+    int fail;          /**< parent selection fail times, if the scan times reach this value,
+                            will disconnect with associated children and join self-healing. default:60 */
+    int monitor_ie;    /**< acceptable times of parent ie change before update self ie, default:3 */
+} mesh_attempts_t;
+
+typedef struct {
+    int duration_ms;   /* parent weak RSSI monitor duration, if the RSSI continues to be weak during this duration_ms,
+                          will switch to a better parent */
+    int cnx_rssi;      /* RSSI threshold for keeping a good connection with parent */
+    int select_rssi;   /* RSSI threshold for parent selection, should be a value greater than switch_rssi */
+    int switch_rssi;   /* RSSI threshold for action to reselect a better parent */
+    int backoff_rssi;  /* RSSI threshold for connecting to the root */
+} mesh_switch_parent_t;
+
+/*******************************************************
+ *                Function Definitions
+ *******************************************************/
+/**
+ * @brief     set mesh softAP beacon interval
+ *
+ * @param     interval  beacon interval(ms) (100ms ~ 60000ms)
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_FAIL
+ *    - ESP_ERR_WIFI_ARG
+ */
+esp_err_t esp_mesh_set_beacon_interval(int interval_ms);
+
+/**
+ * @brief     get mesh softAP beacon interval
+ *
+ * @param     interval  beacon interval(ms)
+ *
+ * @return
+ *    - ESP_OK
+ */
+esp_err_t esp_mesh_get_beacon_interval(int *interval_ms);
+
+/**
+ * @brief    set attempts for mesh self-organized networking
+ *
+ * @param    attempts
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_FAIL
+ */
+esp_err_t esp_mesh_set_attempts(mesh_attempts_t *attempts);
+
+/**
+ * @brief    get attempts for mesh self-organized networking
+ *
+ * @param    attempts
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_FAIL
+ */
+esp_err_t esp_mesh_get_attempts(mesh_attempts_t *attempts);
+
+/**
+ * @brief     set parameters for parent switch
+ *
+ * @param     paras  parameters for parent switch
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_FAIL
+ */
+esp_err_t esp_mesh_set_switch_parent_paras(mesh_switch_parent_t *paras);
+
+/**
+ * @brief     get parameters for parent switch
+ *
+ * @param     paras  parameters for parent switch
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_FAIL
+ */
+esp_err_t esp_mesh_get_switch_parent_paras(mesh_switch_parent_t *paras);
+
+/**
+ * @brief     print the number of txQ waiting
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_FAIL
+ */
+esp_err_t esp_mesh_print_txQ_waiting(void);
+
+/**
+ * @brief     print the number of rxQ waiting
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_FAIL
+ */
+esp_err_t esp_mesh_print_rxQ_waiting(void);
+
+/**
+ * @brief     set passive scan time
+ *
+ * @param     interval_ms  passive scan time(ms)
+ *
+ * @return
+ *    - ESP_OK
+ *    - ESP_FAIL
+ *    - ESP_ERR_ARGUMENT
+ */
+esp_err_t esp_mesh_set_passive_scan_time(int time_ms);
+
+/**
+ * @brief     get passive scan time
+ *
+ * @return    interval_ms  passive scan time(ms)
+ */
+int esp_mesh_get_passive_scan_time(void);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* __ESP_MESH_INTERNAL_H__ */

components/esp32/include/esp_wifi_crypto_types.h

@@ -300,6 +300,16 @@ typedef struct {
     esp_sha256_vector_t sha256_vector;                        /**< function used to do X.509v3 certificate parsing and processing */
 } wpa2_crypto_funcs_t;
 
+/**
+  * @brief The crypto callback function structure used in mesh vendor IE encryption. The
+  *        structure can be set as software crypto or the crypto optimized by ESP32
+  *        hardware.
+  */
+typedef struct{
+    esp_aes_128_encrypt_t aes_128_encrypt;          /**< function used in mesh vendor IE encryption */
+    esp_aes_128_decrypt_t aes_128_decrypt;          /**< function used in mesh vendor IE decryption */
+} mesh_crypto_funcs_t;
+
 #ifdef __cplusplus
 }
 #endif