2.4-rc2 crash while connecting to WPA2 Enterprise (Eduroam)

[frischj]

Hi,

I try to connect the ESP8266 with eduroam with the new 2.4-rc2 (build d1e8fe9) Arduino lib pulled via git as in the descriptions. The code connects to Eduroam as I can see connections results in our university log (only one line, sorry no output of log from radius). At some point, I get a crash and an error stack. I paste the code and the error stack below.

#include <ESP8266WiFi.h>

extern "C" {
#include "user_interface.h"
#include "wpa2_enterprise.h"
}

// SSID to connect to
char ssid[] = "eduroam";
char wlpasswd[] = "";
char username[] = "--------------------";
char identity[] = "------------------";
char password[] = "-------------";
char new_password[] = "-----------";

const char* host = "ipinfo.io";

void setup() {
Serial.begin(115200);
delay(1000);
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);

WiFi.mode(WIFI_STA);

wifi_station_set_wpa2_enterprise_auth(1);

// Clean up to be sure no old data is still inside
wifi_station_clear_cert_key();
wifi_station_clear_enterprise_ca_cert();
wifi_station_clear_enterprise_identity();
wifi_station_clear_enterprise_username();
wifi_station_clear_enterprise_password();
wifi_station_clear_enterprise_new_password();

wifi_station_set_enterprise_identity((uint8*)identity, strlen(identity));
wifi_station_set_enterprise_username((uint8*)username, strlen(username));
wifi_station_set_enterprise_password((uint8*)password, strlen(password));
wifi_station_set_enterprise_new_password((uint8*)new_password, strlen(new_password));
//wifi_station_set_enterprise_ca_cert(ca_pem, ca_pem_len);

WiFi.begin(ssid, wlpasswd);

while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.print(".");
}

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

void loop() {
delay(5000);

Serial.print("connecting to ");
Serial.println(host);

WiFiClient client;
const int httpPort = 80;
if (!client.connect(host, httpPort)) {
Serial.println("connection failed");
return;
}

client.print(String("GET ") + "/ip" + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n\r\n");
delay(500);

while(client.available()){
String line = client.readStringUntil('\r');
Serial.print(line);
}
return;
}

The console result reads:

load 0x4010f000, len 1384, room 16

tail 8

chksum 0x2d

csum 0

Connecting to eduroam

....

Exception (28):

epc1=0x4000df60 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

ctx: sys
sp: 3ffffd70 end: 3fffffb0 offset: 01a0

stack>>>
3fffff10: 402187f9 3ffebd29 00000000 00000000

3fffff20: 40223496 0ee83a2c 2300baa7 d02739eb

3fffff30: 40225346 5060d027 3fff0007 00000000

3fffff40: 3fff211c 4021cd6f 3ffee130 3ffec92c

3fffff50: 3ffec92c 0000002e 00000000 00000035

3fffff60: 00000002 0000001a 40230caf 3ffee130

3fffff70: 3ffec920 3fffdcc0 3ffea7c0 3ffea7c0

3fffff80: 00000080 3ffee130 00000000 3fffdcc0

3fffff90: 4023058b 3fffdab0 00000000 402035c3

3fffffa0: 3ffea7c0 40000f49 3fffdab0 40000f49

<<<stack<<<

ets Jan 8 2013,rst cause:2, boot mode:(1,6)

ets Jan 8 2013,rst cause:4, boot mode:(1,6)

wdt reset

And the decoded error stack reads:

Decoding 9 results
0x402187f9: ieee80211_decap at ?? line ?
0x40223496: wpa_set_pmk at ?? line ?
0x40225346: wpa2_sm_rx_eapol at ?? line ?
0x4021cd6f: sta_input at ?? line ?
0x40230caf: pp_tx_idle_timeout at ?? line ?
0x4023058b: ppPeocessRxPktHdr at ?? line ?
0x402035c3: loop_task at /opt/arduino-1.8.5/hardware/esp8266com/esp8266/cores/esp8266/core_esp8266_main.cpp line 57

Anybody some ideas, if I make something wrong?

[martinius96]

Can you please tell me if you solved it?

[L0laapk3]

I can confirm that this code works in v2.4.0.

For future reference to people finding this from google: use username = identity = [email protected] and password = new_password = your password

edit: it appears to work one time, but when you reset the chip, it will take a very long time to connect or even never connect at all.

Also when the password is wrong, it will just attempt to connect indefinetly as WiFi.status() will keep returning WL_DISCONNECTED.

[devyte]

@L0laapk3 do you mean that the sketch in the original post works for you?

[martinius96]

send us sketch please.

[L0laapk3]

The sketch is literally in the first post lol. I had it work somewhat consistently provided I power down the chip for a minute before I try to connect. When I reset the chip it would fail almost every time. Need to do some additional testing to confirm that this is an issue with the underlying code and not some weird local wifi issue.

[lzydavid]

hi, my version is sdk 2.2.1/ core 2.4.1 , i tried connecting to my school network but still get errors:

SDK:2.2.1(cfd48f3)/Core:2.4.1/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1)
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)

Connecting to NTUSECURE
WPA2 ENTERPRISE VERSION: [v2.0] enable
scandone
state: 3 -> 2 (b0)
.state: 2 -> 0 (2)
reconnect
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt
EAP-PEAP: received 37 bytes encrypted data for Phase 2
EAP-PEAP: received Phase 2: code=1 identifier=50 length=5
EAP-PEAP: Phase 2 Request: type=1
.EAP-PEAP: received 69 bytes encrypted data for Phase 2
EAP-PEAP: received Phase 2: code=1 identifier=51 length=35
EAP-PEAP: Phase 2 Request: type=26
EAP-PEAP: Selected Phase 2 EAP vendor 0 method 26
EAP-MSCHAPV2: RX identifier 51 mschapv2_id 51
EAP-MSCHAPV2: Generate Challenge Response
.EAP-PEAP: received 85 bytes encrypted data for Phase 2
EAP-PEAP: received Phase 2: code=1 identifier=52 length=51
EAP-PEAP: Phase 2 Request: type=26
EAP-MSCHAPV2: RX identifier 52 mschapv2_id 51
.EAP-PEAP: received 37 bytes encrypted data for Phase 2
EAP-PEAP: received Phase 2: code=3 identifier=52 length=4
EAP-PEAP: Phase 2 Success
.Fatal exception 3(LoadStoreErrorCause):
epc1=0x40100326, epc2=0x00000000, epc3=0x00000000, excvaddr=0x40243684, depc=0x00000000

Exception (3):
epc1=0x40100326 epc2=0x00000000 epc3=0x00000000 excvaddr=0x40243684 depc=0x00000000

ctx: sys
sp: 3ffffc80 end: 3fffffb0 offset: 01a0

stack>>>
3ffffe20: 40101efd 3ffedd58 3ffee4c0 00000001
3ffffe30: 00007fff 0029c2eb 3ffee7dc 401020ce
3ffffe40: 3ffefe6c 00000244 00000244 4010020c
3ffffe50: 40245460 00000000 3fff26bc 401009a8
3ffffe60: 7fffffff 3ffeabfc 3fff26c4 40107198
3ffffe70: 3ffefe6c 00000450 00000450 4021197e
3ffffe80: 3ffefe6c 0000029d 0000029d 4010020c
3ffffe90: 3ffefe6c 00000270 00000270 3ffeef78
3ffffea0: 00000008 3ffee71c 3fff22a8 401004fe
3ffffeb0: 3ffefe6c 0000017e 0000017e 4010020c
3ffffec0: 3ffefe6c 0000017b 0000017b 4010020c
3ffffed0: 40245460 3fff1d9c 3fff2074 401009a8
3ffffee0: 3ffefe6c 00000150 00000150 4010020c
3ffffef0: 00000008 3ffee71c 3fff22ac 4010053a
3fffff00: 40226779 3fff1f54 3fff1d9c 4010099c
3fffff10: 402254b0 3fff1f54 3fff1d9c 40107198
3fffff20: 40224d7a 3fff1d9c 3ffee71c 40224d8e
3fffff30: 40224dc9 3fff1d9c 00000000 40224994
3fffff40: 4021c33d 3ffedd58 3ffedd58 3ffecb70
3fffff50: 3ffecb70 00000054 00000000 00000029
3fffff60: 00000002 0000001a 40230303 3ffedd58
3fffff70: 3ffecb64 3fffdcc0 3ffea3a0 3ffea3a0
3fffff80: 00000080 3ffedd58 00000000 3fffdcc0
3fffff90: 4022fbc3 3fffdab0 00000000 00000001
3fffffa0: 3ffea3a0 40000f49 3fffdab0 40000f49
<<<stack<<<

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v614f7c32
~ld

Anyone got any idea how to fix this?

[d-a-v]

https://github.com/espressif/ESP8266_RTOS_SDK/issues/635