private static void ClusterSeedKeyAuthenticate(IKW1281Dialog kwp1281)
{
// Perform Seed/Key authentication
Logger.WriteLine("Sending Custom \"Seed request\" block");
var response = kwp1281.SendCustom(new List <byte> {
0x96, 0x01
});
var responseBlocks = response.Where(b => !b.IsAckNak).ToList();
if (responseBlocks.Count == 1 && responseBlocks[0] is CustomBlock customBlock)
{
Logger.WriteLine($"Block: {Utils.Dump(customBlock.Body)}");
var keyBytes = VdoKeyFinder.FindKey(customBlock.Body.ToArray());
Logger.WriteLine("Sending Custom \"Key response\" block");
var keyResponse = new List <byte> {
0x96, 0x02
};
keyResponse.AddRange(keyBytes);
response = kwp1281.SendCustom(keyResponse);
}
}
private static bool ClusterRequiresSeedKey(IKW1281Dialog kwp1281)
{
Logger.WriteLine("Sending Custom \"Need Seed/Key?\" block");
var response = kwp1281.SendCustom(new List <byte> {
0x96, 0x04
});
var responseBlocks = response.Where(b => !b.IsAckNak).ToList();
if (responseBlocks.Count == 1 && responseBlocks[0] is CustomBlock)
{
// Custom 0x04 means need to do Seed/Key
// Custom 0x07 means unlocked
if (responseBlocks[0].Body.First() == 0x07)
{
return(false);
}
}
return(true);
}
public static bool UnlockCluster(IKW1281Dialog kwp1281)
{
var versionBlocks = kwp1281.CustomReadSoftwareVersion();
// Now we need to send an unlock code that is unique to each ROM version
Logger.WriteLine("Sending Custom \"Unlock partial EEPROM read\" block");
var softwareVersion = versionBlocks[0].Body;
var unlockCodes = GetClusterUnlockCodes(softwareVersion);
var unlocked = false;
foreach (var unlockCode in unlockCodes)
{
var unlockCommand = new List <byte> {
0x9D
};
unlockCommand.AddRange(unlockCode);
var unlockResponse = kwp1281.SendCustom(unlockCommand);
if (unlockResponse.Count != 1)
{
throw new InvalidOperationException(
$"Received multiple responses from unlock request.");
}
if (unlockResponse[0].IsAck)
{
Logger.WriteLine(
$"Unlock code for software version {KW1281Dialog.DumpMixedContent(softwareVersion)} is {Utils.Dump(unlockCode)}");
if (unlockCodes.Length > 1)
{
Logger.WriteLine("Please report this to the program maintainer.");
}
unlocked = true;
break;
}
else if (!unlockResponse[0].IsNak)
{
throw new InvalidOperationException(
$"Received non-ACK/NAK ${unlockResponse[0].Title:X2} from unlock request.");
}
}
return(unlocked);
}
// End top-level commands
private void MapClusterEeprom(IKW1281Dialog kwp1281)
{
// Unlock partial EEPROM read
_ = kwp1281.SendCustom(new List <byte> {
0x9D, 0x39, 0x34, 0x34, 0x40
});
var bytes = new List <byte>();
const byte blockSize = 1;
for (ushort addr = 0; addr < 2048; addr += blockSize)
{
var blockBytes = kwp1281.ReadEeprom(addr, blockSize);
blockBytes = Enumerable.Repeat(
blockBytes == null ? (byte)0 : (byte)0xFF,
blockSize).ToList();
bytes.AddRange(blockBytes);
}
var dumpFileName = _filename ?? "eeprom_map.bin";
Logger.WriteLine($"Saving EEPROM map to {dumpFileName}");
File.WriteAllBytes(dumpFileName, bytes.ToArray());
}
