wpa2-enterprise does not work in recent versions.

[vitcon-iot]

Hardware:

Board: ESP32 Dev Module
Core Installation/update date: 10/jul/2018
IDE name: Arduino IDE
Flash Frequency: 80Mhz
Upload Speed: 921600

Description:

The wpa2 enterprise feature is not working after the last update.
Calling esp_wifi_sta_wpa2_ent_enable() before calling WiFi.mode() occurs Guru Meditation Error.

Sketch:

#include "esp_wpa2.h"
#include "esp_log.h"
#include <WiFi.h>

const char* ssid = "EngineeringBay"; // your ssid
#define EAP_ID "user1"
#define EAP_USERNAME "user1"
#define EAP_PASSWORD "pass1"

void setup() {
  esp_log_level_set("*", ESP_LOG_VERBOSE);
  Serial.begin(115200);
  delay(10);

  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  // WPA2 enterprise magic starts here
  WiFi.disconnect(true);

  int err = 0;
  /*
    esp_wifi_sta_wpa2_ent_clear_ca_cert();
    esp_wifi_sta_wpa2_ent_clear_cert_key();
    esp_wifi_sta_wpa2_ent_set_disable_time_check(true);
  */
  err = esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)EAP_ID, strlen(EAP_ID));
  err = esp_wifi_sta_wpa2_ent_set_username((uint8_t *)EAP_USERNAME, strlen(EAP_USERNAME));
  err = esp_wifi_sta_wpa2_ent_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD));

  esp_wpa2_config_t config = WPA2_CONFIG_INIT_DEFAULT();
  err = esp_wifi_sta_wpa2_ent_enable(&config);

  // WPA2 enterprise magic ends here

  WiFi.begin(ssid);
  WiFi.mode(WIFI_STA); //call after esp_wifi_sta_wpa2_ent_enable()
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  //Do nothing.
}

Debug Messages:

Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.
Core 1 register dump:
PC      : 0x400e6b15  PS      : 0x00060530  A0      : 0x800d1bfe  A1      : 0x3ffb1f40  
A2      : 0x3ffb1f74  A3      : 0x3ffc5778  A4      : 0x00000000  A5      : 0x4baa1dcb  
A6      : 0x00000001  A7      : 0x00000000  A8      : 0x00000000  A9      : 0x3ffb1f40  
A10     : 0x3ffb23cc  A11     : 0x3f40109f  A12     : 0x00000005  A13     : 0x3ffb23d0  
A14     : 0x00000031  A15     : 0x31737361  SAR     : 0x00000018  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000138  LBEG    : 0x4000c349  LEND    : 0x4000c36b  LCOUNT  : 0xffffffff  

Backtrace: 0x400e6b15:0x3ffb1f40 0x400d1bfb:0x3ffb1f70 0x4012a8d3:0x3ffb1fa0

Rebooting...

Exception Decoder:

0x400e6b15: esp_wifi_sta_wpa2_ent_enable at ?? line ?
0x400e6b15: esp_wifi_sta_wpa2_ent_enable at ?? line ?
0x400d1bfb: setup() at C:\Users\JJH\Documents\Arduino\esp32_wap2_enterprise/esp32_wap2_enterprise.ino line 33
0x4012a8d3: loopTask(void*) at C:\Users\JJH\Documents\Arduino\hardware\espressif\esp32\cores\esp32/main.cpp line 15

If WiFi.mode() is called first, Guru Meditation Error does not occur, but Stack smashing protect failure occurs during Wifi connection.

Sketch:

#include "esp_wpa2.h"
#include "esp_log.h"
#include <WiFi.h>

const char* ssid = "EngineeringBay"; // your ssid
#define EAP_ID "user1"
#define EAP_USERNAME "user1"
#define EAP_PASSWORD "pass1"

void setup() {
  esp_log_level_set("*", ESP_LOG_VERBOSE);
  Serial.begin(115200);
  delay(10);

  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  // WPA2 enterprise magic starts here
  WiFi.disconnect(true);
  WiFi.mode(WIFI_STA); //call before esp_wif_ista_wpa2_ent_enable()
  int err = 0;
  /*
    esp_wifi_sta_wpa2_ent_clear_ca_cert();
    esp_wifi_sta_wpa2_ent_clear_cert_key();
    esp_wifi_sta_wpa2_ent_set_disable_time_check(true);
  */
  err = esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)EAP_ID, strlen(EAP_ID));
  err = esp_wifi_sta_wpa2_ent_set_username((uint8_t *)EAP_USERNAME, strlen(EAP_USERNAME));
  err = esp_wifi_sta_wpa2_ent_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD));

  esp_wpa2_config_t config = WPA2_CONFIG_INIT_DEFAULT();
  err = esp_wifi_sta_wpa2_ent_enable(&config);

  // WPA2 enterprise magic ends here

  WiFi.begin(ssid);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  //Do nothing.
}

Debug Messages:

I (28) wifi: wifi driver task: 3ffb7240, prio:23, stack:4096, core=0
I (67) wifi: wifi firmware version: 4fd6a2c
I (68) wifi: config NVS flash: enabled
I (71) wifi: config nano formating: disabled
I (85) wifi: Init dynamic tx buffer num: 32
I (85) wifi: Init data frame dynamic rx buffer num: 10
I (85) wifi: Init management frame dynamic rx buffer num: 10
I (89) wifi: Init static rx buffer size: 1600
I (93) wifi: Init static rx buffer num: 4
I (97) wifi: Init dynamic rx buffer num: 10
I (163) wifi: mode : sta (30:ae:a4:08:93:ac)
I (164) wpa: WPA2 ENTERPRISE VERSION: [v2.0] enable

I (343) wifi: n:11 2, o:1 0, ap:255 255, sta:11 2, prof:1
.I (1074) wifi: state: init -> auth (b0)
I (1078) wifi: state: auth -> assoc (0)
I (1091) wifi: state: assoc -> run (10)
I (1091) wpa: wpa2_task prio:2, stack:6656


Stack smashing protect failure!

abort() was called at PC 0x400e8e1c on core 1

Backtrace: 0x4008f670:0x3ffbb880 0x4008f873:0x3ffbb8a0 0x400e8e1c:0x3ffbb8c0 0x400dd9fd:0x3ffbb8e0 0x400ddaaa:0x3ffbb9a0 0x400dbb8b:0x3ffbb9e0 0x400da91f:0x3ffbba00 0x400dad76:0x3ffbba40 0x400d9b5d:0x3ffbba60 0x400d9580:0x3ffbbab0 0x400d95ed:0x3ffbbaf0 0x400d7feb:0x3ffbbb10 0x400d81ed:0x3ffbbb50 0x400d7341:0x3ffbbb70 0x400e679e:0x3ffbbbf0 0x400e6a2a:0x3ffbbc20

Rebooting...

Exception Decoder:

Decoding 17 results
0x400e8e1c: __stack_chk_fail at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/stack_check.c line 36
0x4008f670: invoke_abort at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/panic.c line 649
0x4008f873: abort at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/panic.c line 649
0x400e8e1c: __stack_chk_fail at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/esp32/stack_check.c line 36
0x400dd9fd: x509_parse_tbs_certificate at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/tls/x509v3.c line 1438
0x400ddaaa: x509_certificate_parse at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/tls/x509v3.c line 1547
0x400dbb8b: tls_parse_cert at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/tls/tlsv1_common.c line 321
0x400da91f: tls_process_certificate at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/tls/tlsv1_client_read.c line 336
0x400dad76: tlsv1_client_process_handshake at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/tls/tlsv1_client_read.c line 958
0x400d9b5d: tlsv1_client_handshake at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/tls/tlsv1_client.c line 801
0x400d9580: tls_connection_handshake2 at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/tls/tls_internal.c line 568
0x400d95ed: tls_connection_handshake at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/tls/tls_internal.c line 568
0x400d7feb: eap_tls_process_input at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/eap_peer/eap_tls_common.c line 482
0x400d81ed: eap_peer_tls_process_helper at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/eap_peer/eap_tls_common.c line 630
0x400d7341: eap_peap_process at /Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/wpa_supplicant/src/wpa2/eap_peer/eap_peap.c line 1097
0x400e679e: eap_sm_process_request at ?? line ?
0x400e6a2a: wpa2Task at ?? line ?

In previous versions of the core in a different PC, both sketch is connected to the AP. (Installed on June 8, 2018)
Can I get help with this issue?

[me-no-dev]

WiFi.mode() is now required in order to init the hardware (before it was initing even if WiFi is off and you call disconnect). So that part of the code is fine ;) you need to turn on the radio to use it.
As for WPA2-Ent I advise you to file an issue in IDF's repository (that is where devs that deal with the stack are looking)