//============================================================================
void WF_WpsKeyGenerate(void)
{
// create the binary key
WF_WpaConvPassphraseToKey(g_p_wpaKeyInfo);
// send it to MRF24WG
SetPSK(g_p_wpaKeyInfo->key);
}
// this should be safe to call at any time
bool DEMRF24::wpaCalPSK(const char * szSsid, const char * szPassphrase, WPA2KEY& wpaKey)
{
t_wpaKeyInfo wpaInfo;
if( szSsid != NULL &&
szPassphrase != NULL &&
(wpaInfo.ssidLen = strlen(szSsid)) <= WF_MAX_SSID_LENGTH &&
(wpaInfo.keyLength = strlen(szPassphrase)) <= WF_MAX_PASSPHRASE_LENGTH )
{
memcpy(wpaInfo.ssid, szSsid, wpaInfo.ssidLen);
memcpy(wpaInfo.key, szPassphrase, wpaInfo.keyLength);
WF_WpaConvPassphraseToKey(&wpaInfo);
memcpy(wpaKey.rgbKey, wpaInfo.key, sizeof(WPA2KEY));
return(true);
}
return(false);
}
// must loop on connect until a connect
static bool Connect(SECURITY security, const uint8_t * szSsid, const void * pvPkt, int iKey, bool fPICKeyCalc, IPSTATUS * pStatus)
{
t_wepContext wep;
t_wpaContext wpa;
t_wpsContext wps;
if (!IsInitialized(pStatus))
{
return(false);
}
else if (szSsid == NULL || (security != DEWF_SECURITY_OPEN && pvPkt == NULL))
{
AssignStatusSafely(pStatus, ispInvalidArgument);
}
else if (IsInitNotLinked(pStatus))
{
// set the SSID
WF_SsidSet((uint8_t *) szSsid, strlen(szSsid));
switch(security)
{
case DEWF_SECURITY_OPEN:
WF_SecurityOpenSet();
break;
case DEWF_SECURITY_WEP_40:
wep.wepSecurityType = security; // WF_SECURITY_WEP_40 or WF_SECURITY_WEP_104
wep.wepKeyIndex = iKey; // 0 thru 3
wep.wepKeyLength = sizeof(WEP40KEY); // number of bytes pointed to by p_wepKey
memcpy(wep.wepKey, pvPkt, sizeof(WEP40KEY)); // array containing WEP binary security key (4 5-byte keys for WEP-40, 4 13-byte keys for WEP-104)
wep.wepKeyType = WF_SECURITY_WEP_OPENKEY; // WF_SECURITY_WEP_OPENKEY (default) or WF_SECURITY_WEP_SHAREDKEY
WF_SecurityWepSet(&wep);
break;
case DEWF_SECURITY_WEP_104:
wep.wepSecurityType = security; // WF_SECURITY_WEP_40 or WF_SECURITY_WEP_104
wep.wepKeyIndex = iKey; // 0 thru 3
wep.wepKeyLength = sizeof(WEP104KEY); // number of bytes pointed to by p_wepKey
memcpy(wep.wepKey, pvPkt, sizeof(WEP104KEY)); // array containing WEP binary security key (4 5-byte keys for WEP-40, 4 13-byte keys for WEP-104)
wep.wepKeyType = WF_SECURITY_WEP_OPENKEY; // WF_SECURITY_WEP_OPENKEY (default) or WF_SECURITY_WEP_SHAREDKEY
WF_SecurityWepSet(&wep);
break;
case DEWF_SECURITY_WPA_WITH_PASS_PHRASE:
case DEWF_SECURITY_WPA2_WITH_PASS_PHRASE:
case DEWF_SECURITY_WPA_AUTO_WITH_PASS_PHRASE:
wpa.wpaSecurityType = security; // WF_SECURITY_WPA_WITH_KEY, WF_SECURITY_WPA_WITH_PASS_PHRASE, WF_SECURITY_WPA2_WITH_KEY, WF_SECURITY_WPA2_WITH_PASS_PHRASE,WF_SECURITY_WPA_AUTO_WITH_KEY, WF_SECURITY_WPA_AUTO_WITH_PASS_PHRASE
wpa.keyInfo.keyLength = strlen(pvPkt); // number of bytes in binary key (always 32) or passphrase
memcpy(wpa.keyInfo.key, pvPkt, wpa.keyInfo.keyLength); // binary key or passphrase
wpa.keyInfo.ssidLen = strlen(szSsid); // number of bytes in SSID
memcpy(wpa.keyInfo.ssid, szSsid, wpa.keyInfo.ssidLen); // ssid
if (fPICKeyCalc)
{
// this is very ugly as it holds the PIC
// for 4 seconds
WF_WpaConvPassphraseToKey(&wpa.keyInfo); // not sure how to check for errors
wpa.wpaSecurityType--; // go to the KEY form of the type
}
WF_SecurityWpaSet(&wpa);
break;
case DEWF_SECURITY_WPA_WITH_KEY:
case DEWF_SECURITY_WPA2_WITH_KEY:
case DEWF_SECURITY_WPA_AUTO_WITH_KEY:
wpa.wpaSecurityType = security; // WF_SECURITY_WPA_WITH_KEY, WF_SECURITY_WPA_WITH_PASS_PHRASE, WF_SECURITY_WPA2_WITH_KEY, WF_SECURITY_WPA2_WITH_PASS_PHRASE,WF_SECURITY_WPA_AUTO_WITH_KEY, WF_SECURITY_WPA_AUTO_WITH_PASS_PHRASE
wpa.keyInfo.keyLength = sizeof(WPA2KEY); // number of bytes in binary key (always 32) or passphrase
memcpy(wpa.keyInfo.key, pvPkt, sizeof(WPA2KEY)); // binary key or passphrase
wpa.keyInfo.ssidLen = strlen(szSsid); // number of bytes in SSID
memcpy(wpa.keyInfo.ssid, szSsid, wpa.keyInfo.ssidLen); // ssid
WF_SecurityWpaSet(&wpa);
break;
case DEWF_SECURITY_WPS_PUSH_BUTTON:
wps.wpsPinLength = WF_WPS_PIN_LENGTH; // should always be 8
memcpy(wps.wpsPin, pvPkt, WF_WPS_PIN_LENGTH); // if using WF_SECURITY_WPS_PIN then pointer to 8-digit pin
// fall thru
case DEWF_SECURITY_WPS_PIN:
wps.wpsSecurityType = security; // WF_SECURITY_WPS_PUSH_BUTTON or WF_SECURITY_WPS_PIN
wps.getPassPhrase = fPICKeyCalc; // calculate key in PIC32(true) or on MRF (false)
memset(&wpaKeyInfoG, 0, sizeof(t_wpaKeyInfo));
wps.p_keyInfo = &wpaKeyInfoG; // pointer to where the Universal driver will store passphrase info (must be global memory)
WF_SecurityWpsSet(&wps);
break;
default:
AssignStatusSafely(((IPSTATUS *) pStatus), ispInvalidArgument);
return(false);
break;
}
wfmrf24.priv.fMRFBusy = true;
WF_Connect();
}
return(IsLinked(pStatus));
}
