public override void Configure(PoolConfig poolConfig, ClusterConfig clusterConfig)
{
extraPoolConfig = poolConfig.Extra.SafeExtensionDataAs <EthereumPoolConfigExtra>();
// extract standard daemon endpoints
daemonEndpoints = poolConfig.Daemons
.Where(x => string.IsNullOrEmpty(x.Category))
.ToArray();
base.Configure(poolConfig, clusterConfig);
if (poolConfig.EnableInternalStratum == true)
{
// ensure dag location is configured
var dagDir = !string.IsNullOrEmpty(extraPoolConfig?.DagDir) ?
Environment.ExpandEnvironmentVariables(extraPoolConfig.DagDir) :
Dag.GetDefaultDagDirectory();
// create it if necessary
Directory.CreateDirectory(dagDir);
// setup ethash
ethash = new EthashFull(3, dagDir);
}
}
public override void Configure(PoolConfig poolConfig, XPoolConfig clusterConfig)
{
extraPoolConfig = poolConfig.Extra.SafeExtensionDataAs <EthereumPoolConfigExtra>();
daemonEndpoints = poolConfig.Daemons
.Where(x => string.IsNullOrEmpty(x.Category))
.ToArray();
base.Configure(poolConfig, clusterConfig);
if (poolConfig.EnableInternalStratum == true)
{
var dagDir = !string.IsNullOrEmpty(extraPoolConfig?.DagDir) ?
Environment.ExpandEnvironmentVariables(extraPoolConfig.DagDir) :
Dag.GetDefaultDagDirectory();
Directory.CreateDirectory(dagDir);
ethash = new EthashFull(3, dagDir);
}
}
public async Task <EthereumShare> ProcessShareAsync(StratumClient worker, string nonce, EthashFull ethash)
{
// duplicate nonce?
lock (workerNonces)
{
RegisterNonce(worker, nonce);
}
// assemble full-nonce
var context = worker.GetContextAs <EthereumWorkerContext>();
var fullNonceHex = context.ExtraNonce1 + nonce;
var fullNonce = ulong.Parse(fullNonceHex, NumberStyles.HexNumber);
// get dag for block
var dag = await ethash.GetDagAsync(BlockTemplate.Height);
// compute
if (!dag.Compute(BlockTemplate.Header.HexToByteArray(), fullNonce, out var mixDigest, out var resultBytes))
{
throw new StratumException(StratumError.MinusOne, "bad hash");
}
resultBytes.ReverseArray();
// test if share meets at least workers current difficulty
var resultValue = new uint256(resultBytes);
var resultValueBig = resultBytes.ToBigInteger();
var shareDiff = (double)BigInteger.Divide(EthereumConstants.BigMaxValue, resultValueBig) / EthereumConstants.Pow2x32;
var stratumDifficulty = context.Difficulty;
var ratio = shareDiff / stratumDifficulty;
var isBlockCandidate = resultValue <= blockTarget;
if (!isBlockCandidate && ratio < 0.99)
{
// check if share matched the previous difficulty from before a vardiff retarget
if (context.VarDiff?.LastUpdate != null && context.PreviousDifficulty.HasValue)
{
ratio = shareDiff / context.PreviousDifficulty.Value;
if (ratio < 0.99)
{
throw new StratumException(StratumError.LowDifficultyShare, $"low difficulty share ({shareDiff})");
}
// use previous difficulty
stratumDifficulty = context.PreviousDifficulty.Value;
}
else
{
throw new StratumException(StratumError.LowDifficultyShare, $"low difficulty share ({shareDiff})");
}
}
// create share
var share = new EthereumShare
{
BlockHeight = (long)BlockTemplate.Height,
IpAddress = worker.RemoteEndpoint?.Address?.ToString(),
Miner = context.MinerName,
Worker = context.WorkerName,
UserAgent = context.UserAgent,
FullNonceHex = "0x" + fullNonceHex,
HeaderHash = BlockTemplate.Header,
MixHash = mixDigest.ToHexString(true),
IsBlockCandidate = isBlockCandidate,
Difficulty = stratumDifficulty * EthereumConstants.Pow2x32,
BlockHash = mixDigest.ToHexString(true) // OW: is this correct?
};
if (share.IsBlockCandidate)
{
share.TransactionConfirmationData = $"{mixDigest.ToHexString(true)}:{share.FullNonceHex}";
}
return(share);
}
public async ValueTask <(Share Share, string FullNonceHex, string HeaderHash, string MixHash)> ProcessShareAsync(
StratumClient worker, string nonce, EthashFull ethash, CancellationToken ct)
{
// duplicate nonce?
lock (workerNonces)
{
RegisterNonce(worker, nonce);
}
// assemble full-nonce
var context = worker.ContextAs <EthereumWorkerContext>();
var fullNonceHex = nonce.StartsWith("0x") ? nonce.Substring(2) : nonce;
if (context.IsNiceHashClient && !string.IsNullOrEmpty(context.ExtraNonce1))
{
fullNonceHex = context.ExtraNonce1 + fullNonceHex;
}
if (!ulong.TryParse(fullNonceHex, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var fullNonce))
{
throw new StratumException(StratumError.MinusOne, "bad nonce " + fullNonceHex);
}
// get dag for block
var dag = await ethash.GetDagAsync(BlockTemplate.Height, logger, ct);
// compute
if (!dag.Compute(logger, BlockTemplate.Header.HexToByteArray(), fullNonce, out var mixDigest, out var resultBytes))
{
throw new StratumException(StratumError.MinusOne, "bad hash");
}
// test if share meets at least workers current difficulty
resultBytes.ReverseInPlace();
var resultValue = new uint256(resultBytes);
var resultValueBig = resultBytes.AsSpan().ToBigInteger();
var shareDiff = (double)BigInteger.Divide(EthereumConstants.BigMaxValue, resultValueBig) / EthereumConstants.Pow2x32;
var stratumDifficulty = context.Difficulty;
var ratio = shareDiff / stratumDifficulty;
var isBlockCandidate = resultValue <= blockTarget;
if (!isBlockCandidate && ratio < 0.99)
{
// check if share matched the previous difficulty from before a vardiff retarget
if (context.VarDiff?.LastUpdate != null && context.PreviousDifficulty.HasValue)
{
ratio = shareDiff / context.PreviousDifficulty.Value;
if (ratio < 0.99)
{
throw new StratumException(StratumError.LowDifficultyShare, $"low difficulty share ({shareDiff})");
}
// use previous difficulty
stratumDifficulty = context.PreviousDifficulty.Value;
}
else
{
throw new StratumException(StratumError.LowDifficultyShare, $"low difficulty share ({shareDiff})");
}
}
// create share
var share = new Share
{
BlockHeight = (long)BlockTemplate.Height,
IpAddress = worker.RemoteEndpoint?.Address?.ToString(),
Miner = context.Miner,
Worker = context.Worker,
UserAgent = context.UserAgent,
IsBlockCandidate = isBlockCandidate,
Difficulty = stratumDifficulty * EthereumConstants.Pow2x32,
BlockHash = mixDigest.ToHexString(true)
};
if (share.IsBlockCandidate)
{
fullNonceHex = "0x" + fullNonceHex;
var headerHash = BlockTemplate.Header;
var mixHash = mixDigest.ToHexString(true);
share.TransactionConfirmationData = $"{mixDigest.ToHexString(true)}:{fullNonceHex}";
return(share, fullNonceHex, headerHash, mixHash);
}
return(share, null, null, null);
}
public async Task <(Share Share, string FullNonceHex, string HeaderHash, string MixHash)> ProcessShareAsync(StratumClient worker, string nonce, EthashFull ethash)
{
lock (workerNonces)
{
RegisterNonce(worker, nonce);
}
var context = worker.GetContextAs <EthereumWorkerContext>();
var fullNonceHex = context.ExtraNonce1 + nonce;
if (!ulong.TryParse(fullNonceHex, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var fullNonce))
{
throw new StratumException(StratumError.MinusOne, "bad nonce " + fullNonceHex);
}
var dag = await ethash.GetDagAsync(BlockTemplate.Height, logger);
if (!dag.Compute(logger, BlockTemplate.Header.HexToByteArray(), fullNonce, out var mixDigest, out var resultBytes))
{
throw new StratumException(StratumError.MinusOne, "bad hash");
}
resultBytes.ReverseArray();
var resultValue = new uint256(resultBytes);
var resultValueBig = resultBytes.ToBigInteger();
var shareDiff = (double)BigInteger.Divide(EthereumConstants.BigMaxValue, resultValueBig) / EthereumConstants.Pow2x32;
var stratumDifficulty = context.Difficulty;
var ratio = shareDiff / stratumDifficulty;
var isBlockCandidate = resultValue <= blockTarget;
if (!isBlockCandidate && ratio < 0.99)
{
if (context.VarDiff?.LastUpdate != null && context.PreviousDifficulty.HasValue)
{
ratio = shareDiff / context.PreviousDifficulty.Value;
if (ratio < 0.99)
{
throw new StratumException(StratumError.LowDifficultyShare, $"low difficulty share ({shareDiff})");
}
stratumDifficulty = context.PreviousDifficulty.Value;
}
else
{
throw new StratumException(StratumError.LowDifficultyShare, $"low difficulty share ({shareDiff})");
}
}
var share = new Share
{
BlockHeight = (long)BlockTemplate.Height,
IpAddress = worker.RemoteEndpoint?.Address?.ToString(),
Miner = context.MinerName,
Worker = context.WorkerName,
UserAgent = context.UserAgent,
IsBlockCandidate = isBlockCandidate,
Difficulty = stratumDifficulty * EthereumConstants.Pow2x32,
BlockHash = mixDigest.ToHexString(true)
};
if (share.IsBlockCandidate)
{
fullNonceHex = "0x" + fullNonceHex;
var headerHash = BlockTemplate.Header;
var mixHash = mixDigest.ToHexString(true);
share.TransactionConfirmationData = $"{mixDigest.ToHexString(true)}:{fullNonceHex}";
return(share, fullNonceHex, headerHash, mixHash);
}
return(share, null, null, null);
}
public async Task <(Share Share, string FullNonceHex, string HeaderHash, string MixHash)> ProcessShareAsync(StratumClient worker, string nonce, EthashFull ethash)
{
// duplicate nonce?
//lock (workerNonces)
//{
// RegisterNonce(worker, nonce);
//}
// assemble full-nonce
var context = worker.GetContextAs <EthereumWorkerContext>();
var fullNonceHex = nonce.StartsWith("0x") ? nonce.Substring(2) : nonce;
if (context.IsNiceHashClient && !string.IsNullOrEmpty(context.ExtraNonce1))
{
fullNonceHex = context.ExtraNonce1 + fullNonceHex;
}
if (!ulong.TryParse(fullNonceHex, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var fullNonce))
{
throw new StratumException(StratumError.Other, "bad nonce " + fullNonceHex);
}
// get dag for block
var dag = await ethash.GetDagAsync(BlockTemplate.Height, logger);
// compute
if (!dag.Compute(logger, BlockTemplate.Header.HexToByteArray(), fullNonce, out var mixDigest, out var resultBytes))
{
throw new StratumException(StratumError.Other, "bad hash");
}
resultBytes.ReverseArray();
// test if share meets at least workers current difficulty
var resultValue = new uint256(resultBytes);
var resultValueBig = resultBytes.ToBigInteger();
var shareDiff = (double)BigInteger.Divide(EthereumConstants.BigMaxValue, resultValueBig);
var stratumDifficulty = context.Difficulty * EthereumConstants.StratumDiffFactor;
var ratio = shareDiff / stratumDifficulty;
var isBlockCandidate = resultValue <= blockTarget;
if (!isBlockCandidate && ratio < 0.98)
{
throw new StratumException(StratumError.LowDifficultyShare, $"low difficulty share ({shareDiff})");
}
// create share
var share = new Share
{
BlockHeight = (long)BlockTemplate.Height,
IpAddress = worker.RemoteEndpoint?.Address?.ToString(),
Miner = context.MinerName,
Worker = context.WorkerName,
UserAgent = context.UserAgent,
IsBlockCandidate = isBlockCandidate,
Difficulty = stratumDifficulty,
BlockHash = mixDigest.ToHexString(true)
};
if (share.IsBlockCandidate)
{
var headerHash = BlockTemplate.Header;
var mixHash = mixDigest.ToHexString(true);
share.TransactionConfirmationData = $"{mixDigest.ToHexString(true)}:{nonce}";
return(share, fullNonceHex, headerHash, mixHash);
}
return(share, null, null, null);
}
