esp_wifi: fix some WiFi issues

Fix following WiFi issues:
1. Fix WiFi buffer reload issue
2. Fix AMSDU decrypt issue
3. Fix some WiFi timer issues
4. Fix the crash caused by too big of association request RSN information
5. Fix the crash caused by block scan
6. Fix the bug for getting channel and bandwidth
7. Fix some Sniffer bugs
8. Fix some ESP-NOW issues
   1> fix the bug when modifying the channel info of peer node
   2> fix the crash when modifying peer node between unencrypted and encrypted
   3> fix the bug for fetch peer
   4> modify the esp_wifi_set_channel() function
   5> fix the bug that the channel parameter doesn't work when adding peer node

Closes https://github.com/espressif/esp-idf/issues/2833
Closes https://github.com/espressif/esp-idf/issues/4311

components/esp_wifi/include/esp_private/wifi.h

@@ -377,6 +377,43 @@ esp_err_t esp_wifi_internal_get_log(wifi_log_level_t *log_level, uint32_t *log_m
   */
 esp_err_t esp_wifi_internal_ioctl(int cmd, wifi_ioctl_config_t *cfg);
 
+/**
+  * @brief     Get the user-configured channel info 
+  *
+  * @param     ifx : WiFi interface 
+  * @param     primary : store the configured primary channel 
+  * @param     second : store the configured second channel
+  *
+  * @return    
+  *    - ESP_OK: succeed
+  */
+esp_err_t esp_wifi_internal_get_config_channel(wifi_interface_t ifx, uint8_t *primary, uint8_t *second);
+
+/**
+  * @brief     Get the negotiated channel info after WiFi connection established 
+  *
+  * @param     ifx : WiFi interface 
+  * @param     aid : the connection number when a STA connects to the softAP    
+  * @param     primary : store the negotiated primary channel 
+  * @param     second : store the negotiated second channel
+  * @attention the aid param is only works when the ESP32 in softAP/softAP+STA mode 
+  *
+  * @return    
+  *    - ESP_OK: succeed
+  */
+esp_err_t esp_wifi_internal_get_negotiated_channel(wifi_interface_t ifx, uint8_t aid, uint8_t *primary, uint8_t *second);
+
+/**
+  * @brief     Get the negotiated bandwidth info after WiFi connection established 
+  *
+  * @param     ifx : WiFi interface 
+  * @param     bw : store the negotiated bandwidth 
+  *
+  * @return    
+  *    - ESP_OK: succeed
+  */
+esp_err_t esp_wifi_internal_get_negotiated_bandwidth(wifi_interface_t ifx, uint8_t aid, uint8_t *bw);
+
 #ifdef __cplusplus
 }
 #endif

components/esp_wifi/include/esp_wifi.h

@@ -542,8 +542,10 @@ esp_err_t esp_wifi_get_bandwidth(wifi_interface_t ifx, wifi_bandwidth_t *bw);
 /**
   * @brief     Set primary/secondary channel of ESP32
   *
-  * @attention 1. This is a special API for sniffer
-  * @attention 2. This API should be called after esp_wifi_start() and esp_wifi_set_promiscuous()
+  * @attention 1. This API should be called after esp_wifi_start()
+  * @attention 2. When ESP32 is in STA mode, this API should not be called when STA is scanning or connecting to an external AP
+  * @attention 3. When ESP32 is in softAP mode, this API should not be called when softAP has connected to external STAs
+  * @attention 4. When ESP32 is in STA+softAP mode, this API should not be called when in the scenarios described above  
   *
   * @param     primary  for HT20, primary is the channel number, for HT40, primary is the primary channel
   * @param     second   for HT20, second is ignored, for HT40, second is the second channel

components/esp_wifi/lib_esp32

@@ -1 +1 @@
-Subproject commit fc48978e6237b0f116c8cef2a685d578b922ca65
+Subproject commit 6de7aa2cd72eb9a423378cf5e4f7e80df091fbca