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Mar 15, 2022
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Original file line number Diff line number Diff line change
@@ -1,22 +1,10 @@
#include <WiFi.h> //Wifi library
#include "esp_wpa2.h" //wpa2 library for connections to Enterprise networks
#define EAP_IDENTITY "login" //if connecting from another corporation, use [email protected] in Eduroam
#define EAP_USERNAME "login" //oftentimes just a repeat of the identity
#define EAP_PASSWORD "password" //your Eduroam password
const char* ssid = "eduroam"; // Eduroam SSID
const char* host = "arduino.php5.sk"; //external server domain for HTTP connection after authentification
int counter = 0;

// NOTE: For some systems, various certification keys are required to connect to the wifi system.
// Usually you are provided these by the IT department of your organization when certs are required
// and you can't connect with just an identity and password.
// Most eduroam setups we have seen do not require this level of authentication, but you should contact
// your IT department to verify.
// You should uncomment these and populate with the contents of the files if this is required for your scenario (See Example 2 and Example 3 below).
//const char *ca_pem = "insert your CA cert from your .pem file here";
//const char *client_cert = "insert your client cert from your .crt file here";
//const char *client_key = "insert your client key from your .key file here";

void setup() {
Serial.begin(115200);
delay(10);
Expand All @@ -25,17 +13,11 @@ void setup() {
Serial.println(ssid);
WiFi.disconnect(true); //disconnect form wifi to set new wifi connection
WiFi.mode(WIFI_STA); //init wifi mode

// Example1 (most common): a cert-file-free eduroam with PEAP (or TTLS)
WiFi.begin(ssid, WPA2_AUTH_PEAP, EAP_IDENTITY, EAP_USERNAME, EAP_PASSWORD);

// Example 2: a cert-file WPA2 Enterprise with PEAP
//WiFi.begin(ssid, WPA2_AUTH_PEAP, EAP_IDENTITY, EAP_USERNAME, EAP_PASSWORD, ca_pem, client_cert, client_key);

// Example 3: TLS with cert-files and no password
//WiFi.begin(ssid, WPA2_AUTH_TLS, EAP_IDENTITY, NULL, NULL, ca_pem, client_cert, client_key);


esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)); //provide identity
esp_wifi_sta_wpa2_ent_set_username((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)); //provide username --> identity and username is same
esp_wifi_sta_wpa2_ent_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD)); //provide password
esp_wifi_sta_wpa2_ent_enable();
WiFi.begin(ssid); //connect to wifi
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
Expand Down
62 changes: 0 additions & 62 deletions libraries/WiFi/src/WiFiSTA.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,6 @@ extern "C" {
#include "lwip/dns.h"
#include <esp_smartconfig.h>
#include <esp_netif.h>
#include "esp_wpa2.h"
}

// -----------------------------------------------------------------------------------------------------------------------
Expand Down Expand Up @@ -146,67 +145,6 @@ wl_status_t WiFiSTAClass::status()
return (wl_status_t)xEventGroupClearBits(_sta_status_group, 0);
}

/**
* Start Wifi connection with a WPA2 Enterprise AP
* if passphrase is set the most secure supported mode will be automatically selected
* @param ssid const char* Pointer to the SSID string.
* @param method wpa2_method_t The authentication method of WPA2 (WPA2_AUTH_TLS, WPA2_AUTH_PEAP, WPA2_AUTH_TTLS)
* @param wpa2_identity const char* Pointer to the entity
* @param wpa2_username const char* Pointer to the username
* @param password const char * Pointer to the password.
* @param ca_pem const char* Pointer to a string with the contents of a .pem file with CA cert
* @param client_crt const char* Pointer to a string with the contents of a .crt file with client cert
* @param client_key const char* Pointer to a string with the contants of a .key file with client key
* @param bssid uint8_t[6] Optional. BSSID / MAC of AP
* @param channel Optional. Channel of AP
* @param connect Optional. call connect
* @return
*/
wl_status_t WiFiSTAClass::begin(const char* wpa2_ssid, wpa2_auth_method_t method, const char* wpa2_identity, const char* wpa2_username, const char *wpa2_password, const char* ca_pem, const char* client_crt, const char* client_key, int32_t channel, const uint8_t* bssid, bool connect)
{
if(!WiFi.enableSTA(true)) {
log_e("STA enable failed!");
return WL_CONNECT_FAILED;
}

if(!wpa2_ssid || *wpa2_ssid == 0x00 || strlen(wpa2_ssid) > 32) {
log_e("SSID too long or missing!");
return WL_CONNECT_FAILED;
}

if(wpa2_identity && strlen(wpa2_identity) > 64) {
log_e("identity too long!");
return WL_CONNECT_FAILED;
}

if(wpa2_username && strlen(wpa2_username) > 64) {
log_e("username too long!");
return WL_CONNECT_FAILED;
}

if(wpa2_password && strlen(wpa2_password) > 64) {
log_e("password too long!");
}

if(ca_pem) {
esp_wifi_sta_wpa2_ent_set_ca_cert((uint8_t *)ca_pem, strlen(ca_pem));
}

if(client_crt) {
esp_wifi_sta_wpa2_ent_set_cert_key((uint8_t *)client_crt, strlen(client_crt), (uint8_t *)client_key, strlen(client_key), NULL, 0);
}

esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)wpa2_identity, strlen(wpa2_identity));
if(method == WPA2_AUTH_PEAP || method == WPA2_AUTH_TTLS) {
esp_wifi_sta_wpa2_ent_set_username((uint8_t *)wpa2_username, strlen(wpa2_username));
esp_wifi_sta_wpa2_ent_set_password((uint8_t *)wpa2_password, strlen(wpa2_password));
}
esp_wifi_sta_wpa2_ent_enable(); //set config settings to enable function
WiFi.begin(wpa2_ssid); //connect to wifi

return status();
}

/**
* Start Wifi connection
* if passphrase is set the most secure supported mode will be automatically selected
Expand Down
6 changes: 0 additions & 6 deletions libraries/WiFi/src/WiFiSTA.h
Original file line number Diff line number Diff line change
Expand Up @@ -30,11 +30,6 @@
#include "esp_event.h"
#endif

typedef enum {
WPA2_AUTH_TLS = 0,
WPA2_AUTH_PEAP = 1,
WPA2_AUTH_TTLS = 2
} wpa2_auth_method_t;

class WiFiSTAClass
{
Expand All @@ -44,7 +39,6 @@ class WiFiSTAClass

public:

wl_status_t begin(const char* wpa2_ssid, wpa2_auth_method_t method, const char* wpa2_identity=NULL, const char* wpa2_username=NULL, const char *wpa2_password=NULL, const char* ca_pem=NULL, const char* client_crt=NULL, const char* client_key=NULL, int32_t channel=0, const uint8_t* bssid=0, bool connect=true);
wl_status_t begin(const char* ssid, const char *passphrase = NULL, int32_t channel = 0, const uint8_t* bssid = NULL, bool connect = true);
wl_status_t begin(char* ssid, char *passphrase = NULL, int32_t channel = 0, const uint8_t* bssid = NULL, bool connect = true);
wl_status_t begin();
Expand Down