Implement t8n execution

src/Nethermind/Ethereum.Test.Base/GeneralTestBase.cs

@@ -167,7 +167,7 @@ protected EthereumTestResult RunTest(GeneralStateTest test, ITxTracer txTracer)
             return testResult;
         }
 
-        private static void InitializeTestState(Dictionary<Address, AccountState> preState, WorldState stateProvider, ISpecProvider specProvider)
+        public static void InitializeTestState(Dictionary<Address, AccountState> preState, WorldState stateProvider, ISpecProvider specProvider)
         {
             foreach (KeyValuePair<Address, AccountState> accountState in preState)
             {

tools/Evm/T8n/Errors/GethErrorMappings.cs

@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: 2024 Demerzel Solutions Limited
+// SPDX-License-Identifier: LGPL-3.0-only
+
+namespace Evm.T8n.Errors;
+
+public class GethErrorMappings
+{
+    private const string WrongTransactionNonceError = "wrong transaction nonce";
+    private const string WrongTransactionNonceGethError = "nonce too low: address {0}, tx: {1} state: {2}";
+
+    private const string MissingTxToError = "TxMissingTo: Must be set.";
+    private const string MissingTxToGethError = "rlp: input string too short for common.Address, decoding into (types.Transaction)(types.BlobTx).To";
+
+    public static string GetErrorMapping(string error, params object[] arguments)
+    {
+        return error switch
+        {
+            WrongTransactionNonceError => string.Format(WrongTransactionNonceGethError, arguments),
+            MissingTxToError => string.Format(MissingTxToGethError),
+            _ => error
+        };
+    }
+}

tools/Evm/T8n/JsonTypes/EnvJson.cs

@@ -7,14 +7,14 @@
 
 namespace Evm.T8n.JsonTypes;
 
-public class EnvJson
+public class EnvJson(Address currentCoinbase, long currentGasLimit, long currentNumber, ulong currentTimestamp)
 {
-    public Address? CurrentCoinbase { get; set; }
-    public long CurrentGasLimit { get; set; }
-    public long CurrentNumber { get; set; }
-    public ulong CurrentTimestamp { get; set; }
-    public Withdrawal[]? Withdrawals { get; set; }
+    public Address CurrentCoinbase { get; set; } = currentCoinbase;
+    public long CurrentGasLimit { get; set; } = currentGasLimit;
+    public long CurrentNumber { get; set; } = currentNumber;
+    public ulong CurrentTimestamp { get; set; } = currentTimestamp;
 
+    public Withdrawal[]? Withdrawals { get; set; }
     public UInt256? CurrentRandom { get; set; }
     public ulong ParentTimestamp { get; set; }
     public UInt256? ParentDifficulty { get; set; }

tools/Evm/T8n/JsonTypes/InputData.cs

@@ -19,7 +19,7 @@ public class InputData
     public TransactionMetaData[]? TransactionMetaDataList { get; set; }
     public string? TxRlp { get; set; }
 
-    public Transaction[] GetTransactions(TxDecoder decoder)
+    public Transaction[] GetTransactions(TxDecoder decoder, ulong chainId)
     {
         List<Transaction> transactions = [];
         if (TxRlp is not null)
@@ -29,14 +29,19 @@ public Transaction[] GetTransactions(TxDecoder decoder)
         }
         else if (Txs is not null && TransactionMetaDataList is not null)
         {
+            var ecdsa = new EthereumEcdsa(chainId);
+
             for (int i = 0; i < Txs.Length; i++)
             {
                 var transaction = Txs[i].ToTransaction();
                 transaction.SenderAddress = null; // t8n does not accept SenderAddress from input, so need to reset senderAddress
 
                 SignTransaction(transaction, TransactionMetaDataList[i], (LegacyTransactionForRpc) Txs[i]);
 
+                transaction.ChainId ??= chainId;
+                transaction.SenderAddress ??= ecdsa.RecoverAddress(transaction);
                 transaction.Hash = transaction.CalculateHash();
+
                 transactions.Add(transaction);
             }
         }

tools/Evm/T8n/JsonTypes/Ommer.cs

@@ -5,8 +5,4 @@
 
 namespace Evm.T8n.JsonTypes;
 
-public class Ommer(int delta, Address address)
-{
-    public int Delta { get; set; } = delta;
-    public Address Address { get; set; } = address;
-}
+public readonly record struct Ommer(int Delta, Address Address);

tools/Evm/T8n/JsonTypes/RejectedTx.cs

@@ -0,0 +1,6 @@
+// SPDX-FileCopyrightText: 2024 Demerzel Solutions Limited
+// SPDX-License-Identifier: LGPL-3.0-only
+
+namespace Evm.T8n.JsonTypes;
+
+public readonly record struct RejectedTx(int Index, string Error);

tools/Evm/T8n/JsonTypes/T8nResult.cs

@@ -0,0 +1,129 @@
+// SPDX-FileCopyrightText: 2024 Demerzel Solutions Limited
+// SPDX-License-Identifier: LGPL-3.0-only
+
+using System.Text.Json.Serialization;
+using Ethereum.Test.Base;
+using Nethermind.Core;
+using Nethermind.Core.Collections;
+using Nethermind.Core.Crypto;
+using Nethermind.Core.Specs;
+using Nethermind.Evm;
+using Nethermind.Evm.Tracing;
+using Nethermind.Int256;
+using Nethermind.Serialization.Rlp;
+using Nethermind.State;
+using Nethermind.State.Proofs;
+
+namespace Evm.T8n.JsonTypes;
+
+public class T8nResult
+{
+    public Hash256? StateRoot { get; set; }
+    public Hash256? TxRoot { get; set; }
+    public Hash256? ReceiptsRoot { get; set; }
+    public Hash256? WithdrawalsRoot { get; set; }
+    public Hash256? LogsHash { get; set; }
+    public Bloom? LogsBloom { get; set; }
+    public TxReceipt[]? Receipts { get; set; }
+    public RejectedTx[]? Rejected { get; set; }
+    [JsonIgnore(Condition = JsonIgnoreCondition.Never)]
+    public UInt256? CurrentDifficulty { get; set; }
+    public UInt256? GasUsed { get; set; }
+    public UInt256? CurrentBaseFee { get; set; }
+    public UInt256? CurrentExcessBlobGas { get; set; }
+    public UInt256? BlobGasUsed { get; set; }
+    public Dictionary<Address, AccountState> Accounts { get; set; } = [];
+    public byte[] TransactionsRlp { get; set; } = [];
+
+
+    public static T8nResult ConstructT8nResult(WorldState stateProvider,
+        Block block,
+        T8nTest test,
+        StorageTxTracer storageTracer,
+        BlockReceiptsTracer blockReceiptsTracer,
+        ISpecProvider specProvider,
+        TransactionExecutionReport txReport)
+    {
+        IReceiptSpec receiptSpec = specProvider.GetSpec(block.Header);
+        Hash256 txRoot = TxTrie.CalculateRoot(txReport.SuccessfulTransactions.ToArray());
+        Hash256 receiptsRoot = ReceiptTrie<TxReceipt>.CalculateRoot(receiptSpec,
+            txReport.SuccessfulTransactionReceipts.ToArray(), new ReceiptMessageDecoder());
+        LogEntry[] logEntries = txReport.SuccessfulTransactionReceipts
+            .SelectMany(receipt => receipt.Logs ?? Enumerable.Empty<LogEntry>())
+            .ToArray();
+        var bloom = new Bloom(logEntries);
+        var gasUsed = blockReceiptsTracer.TxReceipts.Count == 0 ? 0 : (ulong)blockReceiptsTracer.LastReceipt.GasUsedTotal;
+        ulong? blobGasUsed = test.Spec.IsEip4844Enabled ? BlobGasCalculator.CalculateBlobGas(txReport.ValidTransactions.ToArray()) : null;
+
+        T8nResult t8NResult = new()
+        {
+            StateRoot = stateProvider.StateRoot,
+            TxRoot = txRoot,
+            ReceiptsRoot = receiptsRoot,
+            LogsBloom = bloom,
+            LogsHash = Keccak.Compute(Rlp.OfEmptySequence.Bytes),
+            Receipts = txReport.SuccessfulTransactionReceipts.ToArray(),
+            Rejected = txReport.RejectedTransactionReceipts.Count == 0
+                ? null
+                : txReport.RejectedTransactionReceipts.ToArray(),
+            CurrentDifficulty = test.CurrentDifficulty,
+            GasUsed = new UInt256(gasUsed),
+            CurrentBaseFee = test.CurrentBaseFee,
+            WithdrawalsRoot = block.WithdrawalsRoot,
+            CurrentExcessBlobGas = block.ExcessBlobGas,
+            BlobGasUsed = blobGasUsed,
+            TransactionsRlp = Rlp.Encode(txReport.SuccessfulTransactions.ToArray()).Bytes,
+            Accounts = CollectAccounts(test, stateProvider, storageTracer, block),
+        };
+
+        return t8NResult;
+    }
+
+    private static Dictionary<Address, AccountState> CollectAccounts(T8nTest test, WorldState stateProvider, StorageTxTracer storageTracer, Block block)
+    {
+        Dictionary<Address, AccountState?> accounts = test.Alloc.Keys.ToDictionary(address => address,
+            address => GetAccountState(address, stateProvider, storageTracer));
+
+        accounts.AddRange(test.Ommers.ToDictionary(ommer => ommer.Address,
+            ommer => GetAccountState(ommer.Address, stateProvider, storageTracer)));
+
+        if (block.Beneficiary is not null)
+        {
+            accounts[block.Beneficiary] = GetAccountState(block.Beneficiary, stateProvider, storageTracer);
+        }
+
+        foreach (Transaction tx in test.Transactions)
+        {
+            if (tx.To is not null && !accounts.ContainsKey(tx.To))
+            {
+                accounts[tx.To] = GetAccountState(tx.To, stateProvider, storageTracer);
+            }
+            if (tx.SenderAddress is not null && !accounts.ContainsKey(tx.SenderAddress))
+            {
+                accounts[tx.SenderAddress] = GetAccountState(tx.SenderAddress, stateProvider, storageTracer);
+            }
+        }
+
+        return accounts
+            .Where(addressAndAccount => addressAndAccount.Value is not null)
+            .ToDictionary(addressAndAccount => addressAndAccount.Key, addressAndAccount => addressAndAccount.Value!);
+    }
+
+    private static AccountState? GetAccountState(Address address, WorldState stateProvider, StorageTxTracer storageTxTracer)
+    {
+        if (!stateProvider.AccountExists(address))  return null;
+
+        Account account = stateProvider.GetAccount(address);
+        var code = stateProvider.GetCode(address);
+        var accountState = new AccountState
+        {
+            Nonce = account.Nonce,
+            Balance = account.Balance,
+            Code = code
+        };
+
+        accountState.Storage = storageTxTracer.GetStorage(address) ?? [];
+
+        return accountState;
+    }
+}

tools/Evm/T8n/JsonTypes/TransactionExecutionReport.cs

@@ -0,0 +1,15 @@
+// SPDX-FileCopyrightText: 2024 Demerzel Solutions Limited
+// SPDX-License-Identifier: LGPL-3.0-only
+
+using Nethermind.Core;
+
+namespace Evm.T8n.JsonTypes;
+
+
+public class TransactionExecutionReport
+{
+    public List<RejectedTx> RejectedTransactionReceipts { get; set; } = [];
+    public List<Transaction> ValidTransactions { get; set; } = [];
+    public List<Transaction> SuccessfulTransactions { get; set; } = [];
+    public List<TxReceipt> SuccessfulTransactionReceipts { get; set; } = [];
+}

tools/Evm/T8n/JsonTypes/TransactionMetaData.cs

@@ -3,8 +3,4 @@
 
 namespace Evm.T8n.JsonTypes;
 
-public class TransactionMetaData
-{
-    public bool? Protected { get; set; }
-    public byte[]? SecretKey { get; set; }
-}
+public readonly record struct TransactionMetaData(bool? Protected, byte[]? SecretKey);

tools/Evm/T8n/StorageTxTracer.cs

@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: 2024 Demerzel Solutions Limited
+// SPDX-License-Identifier: LGPL-3.0-only
+
+using Nethermind.Core;
+using Nethermind.Evm.Tracing;
+using Nethermind.Int256;
+
+namespace Evm.T8n;
+
+public class StorageTxTracer : TxTracer, IBlockTracer
+{
+    private readonly Dictionary<Address, Dictionary<UInt256, byte[]>> _storages = new();
+    public bool IsTracingRewards => false;
+    public override bool IsTracingOpLevelStorage => true;
+
+    public override void SetOperationStorage(Address address, UInt256 storageIndex, ReadOnlySpan<byte> newValue,
+        ReadOnlySpan<byte> currentValue)
+    {
+        if (!_storages.TryGetValue(address, out _))
+        {
+            _storages[address] = [];
+        }
+
+        _storages[address][storageIndex] = newValue.ToArray();
+    }
+
+    public Dictionary<UInt256, byte[]>? GetStorage(Address address)
+    {
+        _storages.TryGetValue(address, out Dictionary<UInt256, byte[]>? storage);
+        return storage;
+    }
+
+    public void ReportReward(Address author, string rewardType, UInt256 rewardValue) { }
+
+    public void StartNewBlockTrace(Block block) { }
+
+    public ITxTracer StartNewTxTrace(Transaction? tx) => this;
+
+    public void EndTxTrace() { }
+
+    public void EndBlockTrace() { }
+}

tools/Evm/T8n/T8nBlockHashProvider.cs

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: 2024 Demerzel Solutions Limited
+// SPDX-License-Identifier: LGPL-3.0-only
+
+using Evm.T8n.Errors;
+using Nethermind.Core;
+using Nethermind.Core.Crypto;
+using Nethermind.Evm;
+
+namespace Evm.T8n;
+
+public class T8nBlockHashProvider : IBlockhashProvider
+{
+    private readonly Dictionary<long, Hash256?> _blockHashes = new();
+    private static readonly int _maxDepth = 256;
+
+    public Hash256? GetBlockhash(BlockHeader currentBlock, in long number)
+    {
+        long current = currentBlock.Number;
+        if (number >= current || number < current - Math.Min(current, _maxDepth))
+        {
+            return null;
+        }
+
+        return _blockHashes.GetValueOrDefault(number, null) ??
+               throw new T8nException($"BlockHash for block {number} not provided",
+                   T8nErrorCodes.ErrorMissingBlockhash);
+    }
+
+    public void Insert(Hash256 blockHash, long number)
+    {
+        _blockHashes[number] = blockHash;
+    }
+}