bool ESP8266WiFiMulti::APlistAdd(const char* ssid, const char *passphrase) {
WifiAPlist_t newAP;
if(!ssid || *ssid == 0x00 || strlen(ssid) > 31) {
// fail SSID to long or missing!
DEBUG_WIFI_MULTI("[WIFI][APlistAdd] no ssid or ssid to long\n");
return false;
}
if(passphrase && strlen(passphrase) > 63) {
// fail passphrase to long!
DEBUG_WIFI_MULTI("[WIFI][APlistAdd] passphrase to long\n");
return false;
}
newAP.ssid = strdup(ssid);
if(!newAP.ssid) {
DEBUG_WIFI_MULTI("[WIFI][APlistAdd] fail newAP.ssid == 0\n");
return false;
}
if(passphrase) {
newAP.passphrase = strdup(passphrase);
} else {
newAP.passphrase = strdup("");
}
if(!newAP.passphrase) {
DEBUG_WIFI_MULTI("[WIFI][APlistAdd] fail newAP.passphrase == 0\n");
free(newAP.ssid);
return false;
}
APlist.push_back(newAP);
DEBUG_WIFI_MULTI("[WIFI][APlistAdd] add SSID: %s\n", newAP.ssid);
return true;
}
wl_status_t ESP8266WiFiMulti::run(void) {
int8_t scanResult;
wl_status_t status = WiFi.status();
if(status == WL_DISCONNECTED || status == WL_NO_SSID_AVAIL || status == WL_IDLE_STATUS || status == WL_CONNECT_FAILED) {
scanResult = WiFi.scanComplete();
if(scanResult == WIFI_SCAN_RUNNING) {
// scan is running
return WL_NO_SSID_AVAIL;
} else if(scanResult > 0) {
// scan done analyze
WifiAPlist_t bestNetwork { NULL, NULL };
int bestNetworkDb = INT_MIN;
uint8 bestBSSID[6];
int32_t bestChannel;
DEBUG_WIFI_MULTI("[WIFI] scan done\n");
delay(0);
if(scanResult <= 0) {
DEBUG_WIFI_MULTI("[WIFI] no networks found\n");
} else {
DEBUG_WIFI_MULTI("[WIFI] %d networks found\n", scanResult);
for(int8_t i = 0; i < scanResult; ++i) {
String ssid_scan;
int32_t rssi_scan;
uint8_t sec_scan;
uint8_t* BSSID_scan;
int32_t chan_scan;
bool hidden_scan;
WiFi.getNetworkInfo(i, ssid_scan, sec_scan, rssi_scan, BSSID_scan, chan_scan, hidden_scan);
bool known = false;
for(uint32_t x = 0; x < APlist.size(); x++) {
WifiAPlist_t entry = APlist[x];
if(ssid_scan == entry.ssid) { // SSID match
known = true;
if(rssi_scan > bestNetworkDb) { // best network
if(sec_scan == ENC_TYPE_NONE || entry.passphrase) { // check for passphrase if not open wlan
bestNetworkDb = rssi_scan;
bestChannel = chan_scan;
memcpy((void*) &bestNetwork, (void*) &entry, sizeof(bestNetwork));
memcpy((void*) &bestBSSID, (void*) BSSID_scan, sizeof(bestBSSID));
}
}
break;
}
}
if(known) {
DEBUG_WIFI_MULTI(" ---> ");
} else {
DEBUG_WIFI_MULTI(" ");
}
DEBUG_WIFI_MULTI(" %d: [%d][%02X:%02X:%02X:%02X:%02X:%02X] %s (%d) %c\n", i, chan_scan, BSSID_scan[0], BSSID_scan[1], BSSID_scan[2], BSSID_scan[3], BSSID_scan[4], BSSID_scan[5], ssid_scan.c_str(), rssi_scan, (sec_scan == ENC_TYPE_NONE) ? ' ' : '*');
delay(0);
}
}
// clean up ram
WiFi.scanDelete();
DEBUG_WIFI_MULTI("\n\n");
delay(0);
if(bestNetwork.ssid) {
DEBUG_WIFI_MULTI("[WIFI] Connecting BSSID: %02X:%02X:%02X:%02X:%02X:%02X SSID: %s Channal: %d (%d)\n", bestBSSID[0], bestBSSID[1], bestBSSID[2], bestBSSID[3], bestBSSID[4], bestBSSID[5], bestNetwork.ssid, bestChannel, bestNetworkDb);
WiFi.begin(bestNetwork.ssid, bestNetwork.passphrase, bestChannel, bestBSSID);
status = WiFi.status();
// wait for connection or fail
while(status != WL_CONNECTED && status != WL_NO_SSID_AVAIL && status != WL_CONNECT_FAILED) {
delay(10);
status = WiFi.status();
}
IPAddress ip;
uint8_t * mac;
switch(status) {
case WL_CONNECTED:
ip = WiFi.localIP();
mac = WiFi.BSSID();
DEBUG_WIFI_MULTI("[WIFI] Connecting done.\n");
DEBUG_WIFI_MULTI("[WIFI] SSID: %s\n", WiFi.SSID());
DEBUG_WIFI_MULTI("[WIFI] IP: %d.%d.%d.%d\n", ip[0], ip[1], ip[2], ip[3]);
DEBUG_WIFI_MULTI("[WIFI] MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
DEBUG_WIFI_MULTI("[WIFI] Channel: %d\n", WiFi.channel());
break;
case WL_NO_SSID_AVAIL:
DEBUG_WIFI_MULTI("[WIFI] Connecting Failed AP not found.\n");
break;
case WL_CONNECT_FAILED:
DEBUG_WIFI_MULTI("[WIFI] Connecting Failed.\n");
break;
default:
DEBUG_WIFI_MULTI("[WIFI] Connecting Failed (%d).\n", status);
break;
}
} else {
DEBUG_WIFI_MULTI("[WIFI] no matching wifi found!\n");
}
} else {
// start scan
DEBUG_WIFI_MULTI("[WIFI] delete old wifi config...\n");
WiFi.disconnect();
DEBUG_WIFI_MULTI("[WIFI] start scan\n");
// scan wifi async mode
WiFi.scanNetworks(true);
}
}
return status;
}
