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washmach_RW.ino
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# include "margoulinade.h"
void displayKeyDebug(byte *key)
{
uint8_t i = -1;
while (++i < 6)
{
Serial.print(key[i], HEX);
Serial.print(" ");
}
}
void writeModeInitialization(t_nfc_handler *nfc_handler, byte dormitory)
{
if (dormitory == 4)
{
lcd.print(F("Balance will be"));
lcd.setCursor(0,1);
lcd.print(F("changed to 40..."));
lcd.setCursor(0,0);
delay(1500);
}
else
{
nfc_handler->newBalance = encoderWrite() * 100;
nfc_handler->balance[0] = nfc_handler->newBalance / 256;
nfc_handler->balance[1] = nfc_handler->newBalance - (nfc_handler->balance[0] * 256);
}
}
void calcOldD4cardKeyA(t_nfc_handler *nfc_handler)
{
nfc_handler->KeyA_D4[0] = nfc_handler->uid[0];
nfc_handler->KeyA_D4[1] = nfc_handler->uid[1];
nfc_handler->KeyA_D4[2] = nfc_handler->uid[2];
nfc_handler->KeyA_D4[3] = nfc_handler->uid[3];
nfc_handler->KeyA_D4[4] = nfc_handler->uid[0] ^ nfc_handler->uid[1] ^ nfc_handler->uid[2] ^ nfc_handler->uid[3];
nfc_handler->KeyA_D4[5] = nfc_handler->uid[0] + nfc_handler->uid[1] + nfc_handler->uid[2] + nfc_handler->uid[3];
}
bool guessNewD4Keys(t_nfc_handler *nfc_handler, byte *dormitory)
{
lcd.clear();
if (!(nfc_handler->success = nfc.mifareclassic_AuthenticateBlock(nfc_handler->uid, nfc_handler->uidLength, 0, nfc_handler->keyNumber, nfc_handler->KeyA_new_D4_part1)))
{
nfc_handler->success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, nfc_handler->uid, &nfc_handler->uidLength);
//Test if it is a new D4 card type 1, same as D3 cards
if (nfc_handler->success = nfc.mifareclassic_AuthenticateBlock(nfc_handler->uid, nfc_handler->uidLength, 15, nfc_handler->keyNumber, nfc_handler->KeyA_D3_part1))
{
lcd.print(F("D4 CARD"));
lcd.setCursor(0, 1);
lcd.print(F("Type 1"));
lcd.setCursor(0,0);
*dormitory = 3;
}
else {
lcd.print(F("UNKNOWN CARD!"));
delay(1000);
return false;
}
}
else
{
lcd.print(F("D4 CARD"));
lcd.setCursor(0, 1);
lcd.print(F("Type 2"));
lcd.setCursor(0,0);
delay(1000);
}
return true;
}
void dormitory3Authentication(t_nfc_handler *nfc_handler)
{
if (nfc_handler->currentblock >= 5 * 4 && nfc_handler->currentblock <= 6 * 4)
{
displayKeyDebug(nfc_handler->KeyA_D3_part2);
nfc_handler->success = nfc.mifareclassic_AuthenticateBlock (nfc_handler->uid, nfc_handler->uidLength, nfc_handler->currentblock, nfc_handler->keyNumber, nfc_handler->KeyA_D3_part2);
}
else
{
displayKeyDebug(nfc_handler->KeyA_D3_part1);
nfc_handler->success = nfc.mifareclassic_AuthenticateBlock (nfc_handler->uid, nfc_handler->uidLength, nfc_handler->currentblock, nfc_handler->keyNumber, nfc_handler->KeyA_D3_part1);
}
}
void dormitory4newCardsAuthentication(t_nfc_handler *nfc_handler)
{
if (nfc_handler->currentblock >= 10 * 4 && nfc_handler->currentblock < 11 * 4)
{
displayKeyDebug(nfc_handler->KeyA_new_D4_part2);
nfc_handler->success = nfc.mifareclassic_AuthenticateBlock(nfc_handler->uid, nfc_handler->uidLength,
nfc_handler->currentblock,
nfc_handler->keyNumber,
nfc_handler->KeyA_new_D4_part2);
}
else
{
displayKeyDebug(nfc_handler->KeyA_new_D4_part1);
nfc_handler->success = nfc.mifareclassic_AuthenticateBlock(nfc_handler->uid, nfc_handler->uidLength,
nfc_handler->currentblock,
nfc_handler->keyNumber,
nfc_handler->KeyA_new_D4_part1);
}
}
void balanceReadOnly(t_nfc_handler *nfc_handler, byte dormitory)
{
nfc_handler->offset = dormitory == 4 ? 0 : 7;
if (nfc_handler->currentblock == 24)
nfc_handler->currentBalance = dormitory == 4 ?
(nfc_handler->data[nfc_handler->offset + 1] * 256) +
nfc_handler->data[nfc_handler->offset] :
(nfc_handler->data[nfc_handler->offset - 1] * 256) +
nfc_handler->data[nfc_handler->offset];
}
void newBalanceWrite(t_nfc_handler *nfc_handler)
{
if (nfc_handler->success)
{
Serial.print(F("new B "));Serial.print(nfc_handler->currentblock, DEC);
Serial.print(" ");
nfc.PrintHexChar(nfc_handler->data, 16);
}
}
void oldDormitory4WriteBalance(t_nfc_handler *nfc_handler)
{
nfc.mifareclassic_ReadDataBlock(nfc_handler->currentblock, nfc_handler->data);
nfc_handler->data[0] = (uint8_t)0xA0;
nfc_handler->data[1] = (uint8_t)0x0F;
nfc_handler->data[7] = (uint8_t)0x00;
nfc_handler->data[10] = (uint8_t)0xCA;
nfc_handler->data[11] = (uint8_t)0x25;
nfc_handler->data[14] = (uint8_t)0x41;
nfc_handler->data[15] = (uint8_t)0x9F;
nfc_handler->success = nfc.mifareclassic_WriteDataBlock(nfc_handler->currentblock, nfc_handler->data);
newBalanceWrite(nfc_handler);
}
void balanceShow(t_nfc_handler *nfc_handler, bool mode, byte dormitory)
{
if (!mode && nfc_handler->success)
{
lcd.print(F("Balance :"));
lcd.print(nfc_handler->currentBalance / 100);
Serial.println(nfc_handler->currentBalance, DEC);
}
else if (mode && nfc_handler->success)
{
lcd.print(F("New balance :"));
dormitory == 3 || 5 ? lcd.print(nfc_handler->newBalance / 100) : lcd.print("40");
dormitory == 3 || 5 ? Serial.println(nfc_handler->newBalance, DEC) : Serial.println(40, DEC);
}
else
{
lcd.print(F("Something went"));
lcd.setCursor(0,1);
lcd.print(F("wrong"));
}
Wire.endTransmission();
}
void sectorsParsing(t_nfc_handler *nfc_handler, bool mode, byte dormitory)
{
short first_block = 0;
short last_block = 64;
if (OPTIMIZATION_MODE)
{
first_block = 24;
if (!mode)
last_block = 26;
else
last_block = 27;
}
for (nfc_handler->currentblock = first_block; nfc_handler->currentblock < last_block; nfc_handler->currentblock++)
{
// Check if this is a new block so that we can reauthenticate
if (nfc.mifareclassic_IsFirstBlock(nfc_handler->currentblock))
nfc_handler->authenticated = false;
// If the sector hasn't been authenticated, do so first
if (!nfc_handler->authenticated)
{
// Starting of a new sector ... try to to authenticate
Serial.print(F("------------------------Sector "));Serial.print(nfc_handler->currentblock/4, DEC);Serial.println(F("-------------------------"));
Serial.print(F("keys used:"));
if (dormitory == 3)
dormitory3Authentication(nfc_handler);
else if (dormitory == 4)
nfc_handler->success = nfc.mifareclassic_AuthenticateBlock(nfc_handler->uid, nfc_handler->uidLength, nfc_handler->currentblock, nfc_handler->keyNumber, nfc_handler->KeyA_D4);
else if (dormitory == 5)
dormitory4newCardsAuthentication(nfc_handler);
else if (dormitory == 13)
nfc_handler->success = nfc.mifareclassic_AuthenticateBlock(nfc_handler->uid, nfc_handler->uidLength, nfc_handler->currentblock, nfc_handler->keyNumber, nfc_handler->KeyA_Blank);
Serial.println("");
if (nfc_handler->success)
nfc_handler->authenticated = true;
else
{
Serial.println(F("Authentication error"));
lcd.clear();
lcd.print(F("key error"));
}
}
// If we're still not authenticated just skip the block
if (!nfc_handler->authenticated)
{
Serial.print(F("Block "));Serial.print(nfc_handler->currentblock, DEC);Serial.println(F(" unable to authenticate"));
}
else
{
nfc_handler->success = nfc.mifareclassic_ReadDataBlock(nfc_handler->currentblock, nfc_handler->data);
if (nfc_handler->success)
{
Serial.print(F("Block "));Serial.print(nfc_handler->currentblock, DEC);
Serial.print(" ");
// Dump the raw data
nfc.PrintHexChar(nfc_handler->data, 16);
if (!mode)
balanceReadOnly(nfc_handler, dormitory);
else
{
if (nfc_handler->currentblock >= 24 && nfc_handler->currentblock <= 26 && dormitory != 4)
{
if (dormitory == 3 || dormitory == 13)
nfc_handler->offset = nfc_handler->currentblock == 25 ? 6 : 7;
else
nfc_handler->offset = nfc_handler->currentblock == 25 ? 8 : 7;
nfc_handler->data[nfc_handler->offset - 1] = nfc_handler->balance[0];
nfc_handler->data[nfc_handler->offset] = nfc_handler->balance[1];
nfc_handler->success = nfc.mifareclassic_WriteDataBlock(nfc_handler->currentblock, nfc_handler->data);
newBalanceWrite(nfc_handler);
}
else if (nfc_handler->currentblock == 24 || nfc_handler->currentblock == 26 && dormitory == 4)
oldDormitory4WriteBalance(nfc_handler);
else if (nfc_handler->currentblock == 60 && POURRISSAGE)
{
memcpy(nfc_handler->data, "You got rekt son", 16);
nfc_handler->success = nfc.mifareclassic_WriteDataBlock(nfc_handler->currentblock, nfc_handler->data);
}
}
}
else
{
// Oops ... something happened
Serial.print(F("Block "));Serial.print(nfc_handler->currentblock, DEC);
Serial.println(F(" unable to read this block"));
}
}
}
}