long
wlan_smart_config_process()
{
signed long returnValue;
unsigned long ssidLen, keyLen;
unsigned char *decKeyPtr;
unsigned char *ssidPtr;
// read the key from EEPROM - fileID 12
returnValue = aes_read_key(key);
if (returnValue != 0)
return returnValue;
// read the received data from fileID #13 and parse it according to the followings:
// 1) SSID LEN - not encrypted
// 2) SSID - not encrypted
// 3) KEY LEN - not encrypted. always 32 bytes long
// 4) Security type - not encrypted
// 5) KEY - encrypted together with true key length as the first byte in KEY
// to elaborate, there are two corner cases:
// 1) the KEY is 32 bytes long. In this case, the first byte does not represent KEY length
// 2) the KEY is 31 bytes long. In this case, the first byte represent KEY length and equals 31
returnValue = nvmem_read(NVMEM_SHARED_MEM_FILEID, SMART_CONFIG_PROFILE_SIZE, 0, profileArray);
if (returnValue != 0)
return returnValue;
ssidPtr = &profileArray[1];
ssidLen = profileArray[0];
decKeyPtr = &profileArray[profileArray[0] + 3];
aes_decrypt(decKeyPtr, key);
if (profileArray[profileArray[0] + 1] > 16)
aes_decrypt((unsigned char *)(decKeyPtr + 16), key);
if (*(unsigned char *)(decKeyPtr +31) != 0)
{
if (*decKeyPtr == 31)
{
keyLen = 31;
decKeyPtr++;
}
else
{
keyLen = 32;
}
}
else
{
keyLen = *decKeyPtr;
decKeyPtr++;
}
// add a profile
switch (profileArray[profileArray[0] + 2])
{
case WLAN_SEC_UNSEC://None
{
returnValue = wlan_add_profile(profileArray[profileArray[0] + 2], // security type
ssidPtr, // SSID
ssidLen, // SSID length
NULL, // BSSID
1, // Priority
0, 0, 0, 0, 0);
break;
}
case WLAN_SEC_WEP://WEP
{
returnValue = wlan_add_profile(profileArray[profileArray[0] + 2], // security type
ssidPtr, // SSID
ssidLen, // SSID length
NULL, // BSSID
1, // Priority
keyLen, // KEY length
0, // KEY index
0,
decKeyPtr, // KEY
0);
break;
}
case WLAN_SEC_WPA://WPA
case WLAN_SEC_WPA2://WPA2
{
returnValue = wlan_add_profile(WLAN_SEC_WPA2, // security type
ssidPtr,
ssidLen,
NULL, // BSSID
1, // Priority
0x18, // PairwiseCipher
0x1e, // GroupCipher
2, // KEY management
decKeyPtr, // KEY
keyLen); // KEY length
break;
}
}
return returnValue;
}
long wlan_smart_config_process()
{
signed long returnValue;
unsigned long ssidLen, keyLen;
uint8_t *decKeyPtr;
uint8_t *ssidPtr;
/* Read the key from EEPROM - fileID 12 */
returnValue = aes_read_key(akey);
if (returnValue != 0)
{
return returnValue;
}
/* Read the received data from fileID #13 and parse it according to the followings:
* 1) SSID LEN - not encrypted
* 2) SSID - not encrypted
* 3) KEY LEN - not encrypted. always 32 bytes long
* 4) Security type - not encrypted
* 5) KEY - encrypted together with true key length as the first byte in KEY
* to elaborate, there are two corner cases:
* 1) the KEY is 32 bytes long. In this case, the first byte does not represent
* KEY length
* 2) the KEY is 31 bytes long. In this case, the first byte represent KEY
* length and equals 31
*/
returnValue = nvmem_read(NVMEM_SHARED_MEM_FILEID, SMART_CONFIG_PROFILE_SIZE,
0, profileArray);
if (returnValue != 0)
{
return returnValue;
}
ssidPtr = &profileArray[1];
ssidLen = profileArray[0];
decKeyPtr = &profileArray[profileArray[0] + 3];
aes_decrypt(decKeyPtr, akey);
if (profileArray[profileArray[0] + 1] > 16)
{
aes_decrypt((uint8_t *)(decKeyPtr + 16), akey);
}
if (*(uint8_t *)(decKeyPtr +31) != 0)
{
if (*decKeyPtr == 31)
{
keyLen = 31;
decKeyPtr++;
}
else
{
keyLen = 32;
}
}
else
{
keyLen = *decKeyPtr;
decKeyPtr++;
}
/* Add a profile */
switch (profileArray[profileArray[0] + 2])
{
case WLAN_SEC_UNSEC: /* None */
{
returnValue = wlan_add_profile(profileArray[profileArray[0] + 2], /* Security type */
ssidPtr, /* SSID */
ssidLen, /* SSID length */
NULL, /* BSSID */
1, /* Priority */
0, 0, 0, 0, 0);
break;
}
case WLAN_SEC_WEP: /* WEP */
{
returnValue = wlan_add_profile(profileArray[profileArray[0] + 2], /* Security type */
ssidPtr, /* SSID */
ssidLen, /* SSID length */
NULL, /* BSSID */
1, /* Priority */
keyLen, /* KEY length */
0, /* KEY index */
0,
decKeyPtr, /* KEY */
0);
break;
}
case WLAN_SEC_WPA: /* WPA */
case WLAN_SEC_WPA2: /* WPA2 */
{
returnValue = wlan_add_profile(WLAN_SEC_WPA2, /* Security type */
ssidPtr,
ssidLen,
NULL, /* BSSID */
1, /* Priority */
0x18, /* PairwiseCipher */
0x1e, /* GroupCipher */
2, /* KEY management */
decKeyPtr, /* KEY */
keyLen); /* KEY length */
break;
}
}
return returnValue;
}
