Consensus parameters storage

CMakeLists.txt

@@ -94,6 +94,7 @@ endif()
 
 # Silkworm itself
 add_subdirectory(silkworm)
+add_subdirectory(eosevm)
 
 if(NOT SILKWORM_HAS_PARENT)
   add_subdirectory(cmd)

eosevm/CMakeLists.txt

@@ -0,0 +1,37 @@
+
+find_package(Microsoft.GSL REQUIRED)
+find_package(nlohmann_json REQUIRED)
+find_package(tl-expected REQUIRED)
+
+if(MSVC)
+  add_compile_options(/EHsc)
+else()
+  add_compile_options(-fno-exceptions)
+endif()
+
+file(
+  GLOB_RECURSE
+  EOS_EVM_SRC
+  CONFIGURE_DEPENDS
+  "*.cpp"
+  "*.hpp"
+  "*.c"
+  "*.h"
+)
+list(FILTER EOS_EVM_SRC EXCLUDE REGEX "_test\\.cpp$")
+list(FILTER EOS_EVM_SRC EXCLUDE REGEX "_benchmark\\.cpp$")
+
+add_library(eos_evm ${EOS_EVM_SRC})
+target_include_directories(eos_evm PUBLIC ${SILKWORM_MAIN_DIR})
+
+set(EOS_EVM_PUBLIC_LIBS
+    intx::intx
+    evmc
+    tl::expected
+    nlohmann_json::nlohmann_json
+)
+
+target_link_libraries(
+  eos_evm
+  PUBLIC ${EOS_EVM_PUBLIC_LIBS}
+)

eosevm/consensus_parameters.cpp

@@ -0,0 +1,78 @@
+#include "consensus_parameters.hpp"
+
+#if not defined(ANTELOPE)
+#include <silkworm/core/common/assert.hpp>
+#include <silkworm/core/common/endian.hpp>
+#endif
+
+namespace eosevm {
+bool operator==(const eosevm::GasFeeParameters& a, const eosevm::GasFeeParameters& b) { 
+    return a.gas_codedeposit == b.gas_codedeposit && a.gas_newaccount == b.gas_newaccount && 
+    a.gas_sset == b.gas_sset && a.gas_txcreate == b.gas_txcreate && a.gas_txnewaccount == b.gas_txnewaccount; 
+}
+
+bool operator==(const eosevm::ConsensusParameters& a, const eosevm::ConsensusParameters& b) { 
+    return a.min_gas_price == b.min_gas_price && a.gas_fee_parameters == b.gas_fee_parameters; }
+
+
+#if not defined(ANTELOPE)
+[[nodiscard]] silkworm::Bytes GasFeeParameters::encode() const noexcept  {
+    silkworm::Bytes ret(40, '\0');
+    silkworm::endian::store_big_u64(&ret[0], gas_txnewaccount);
+    silkworm::endian::store_big_u64(&ret[8], gas_newaccount);
+    silkworm::endian::store_big_u64(&ret[16], gas_txcreate);
+    silkworm::endian::store_big_u64(&ret[24], gas_codedeposit);
+    silkworm::endian::store_big_u64(&ret[32], gas_sset);
+
+    return ret;
+}
+
+std::optional<GasFeeParameters> GasFeeParameters::decode(silkworm::ByteView encoded) noexcept {
+    SILKWORM_ASSERT(encoded.length() >= 40);
+    GasFeeParameters feeParams;
+    feeParams.gas_txnewaccount = silkworm::endian::load_big_u64(&encoded[0]);
+    feeParams.gas_newaccount = silkworm::endian::load_big_u64(&encoded[8]);
+    feeParams.gas_txcreate = silkworm::endian::load_big_u64(&encoded[16]);
+    feeParams.gas_codedeposit = silkworm::endian::load_big_u64(&encoded[24]);
+    feeParams.gas_sset = silkworm::endian::load_big_u64(&encoded[32]);
+
+    return feeParams;
+}
+#endif
+
+#if not defined(ANTELOPE)
+[[nodiscard]] silkworm::Bytes ConsensusParameters::encode() const noexcept  {
+    SILKWORM_ASSERT(min_gas_price.has_value());
+    SILKWORM_ASSERT(gas_fee_parameters.has_value());
+    constexpr size_t size_before_fee_param = 2 * sizeof(uint64_t);
+    auto value = gas_fee_parameters->encode();
+    silkworm::Bytes ret(value.length() + size_before_fee_param, '\0');
+    // Always store as latest supported version: currently 0.
+    silkworm::endian::store_big_u64(&ret[0], 0);
+    silkworm::endian::store_big_u64(&ret[sizeof(uint64_t)], *min_gas_price);
+    std::memcpy(&ret[size_before_fee_param], &value[0], value.length());
+    return ret;
+};
+
+std::optional<ConsensusParameters> ConsensusParameters::decode(silkworm::ByteView encoded) noexcept {
+    SILKWORM_ASSERT(encoded.length() > sizeof(uint64_t));
+    ConsensusParameters config{};
+    const auto version = silkworm::endian::load_big_u64(&encoded[0]);
+
+    // Parse according to version. For now, only 0.
+    switch (version) {
+        case 0: {
+            constexpr size_t size_before_fee_param = 2 * sizeof(uint64_t);
+            SILKWORM_ASSERT(encoded.length() > size_before_fee_param);
+            config.min_gas_price = silkworm::endian::load_big_u64(&encoded[sizeof(uint64_t)]);
+            config.gas_fee_parameters = GasFeeParameters::decode(silkworm::ByteView{&encoded[size_before_fee_param], encoded.length() - size_before_fee_param});
+            break;
+            }
+        default: SILKWORM_ASSERT(version <= 0);
+    }
+
+    return config;
+}
+#endif
+
+} // namespace eosevm

eosevm/consensus_parameters.hpp

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <cstdint>
+#include <optional>
+#include <string>
+
+#include <intx/intx.hpp>
+
+
+#if not defined(ANTELOPE)
+#include <silkworm/core/common/base.hpp>
+#endif
+
+
+namespace eosevm {
+
+// Note: GasFeeParameters struct is NOT versioned, version will be handled by ConsensusParameters.
+// If we want to change this struct, create GasFeeParametersV2 and let ConsensusParameters use it. 
+struct GasFeeParameters {
+    // gas_txnewaccount = account_bytes * gas_per_byte
+    uint64_t gas_txnewaccount;
+    // gas_newaccount = account_bytes * gas_per_byte
+    uint64_t gas_newaccount;
+    // gas_txcreate = gas_create = contract_fixed_bytes * gas_per_byte
+    uint64_t gas_txcreate;
+    // gas_codedeposit = gas_per_byte
+    uint64_t gas_codedeposit;
+    // gas_sset = 100 + storage_slot_bytes * gas_per_byte 
+    uint64_t gas_sset;
+
+    #if not defined(ANTELOPE)
+    // Encode for storage in db.
+    [[nodiscard]] silkworm::Bytes encode() const noexcept;
+
+    // Decode from storage in db.
+    static std::optional<GasFeeParameters> decode(silkworm::ByteView encoded) noexcept;
+    #endif
+
+    friend bool operator==(const GasFeeParameters&, const GasFeeParameters&);  
+};
+
+struct ConsensusParameters {
+    std::optional<uint64_t>  min_gas_price;
+    std::optional<GasFeeParameters> gas_fee_parameters;
+
+    #if not defined(ANTELOPE)
+    // Encode for storage in db.
+    [[nodiscard]] silkworm::Bytes encode() const noexcept;
+
+    // Decode from storage in db.
+    static std::optional<ConsensusParameters> decode(silkworm::ByteView encoded) noexcept;
+    #endif
+
+    friend bool operator==(const ConsensusParameters&, const ConsensusParameters&);
+};
+
+} // namespace eosevm

silkworm/core/types/block.cpp

@@ -33,7 +33,7 @@ bool operator==(const BlockHeader& a, const BlockHeader& b) {
 }
 
 bool operator==(const BlockBody& a, const BlockBody& b) {
-    return a.transactions == b.transactions && a.ommers == b.ommers;
+    return a.transactions == b.transactions && a.ommers == b.ommers && a.consensus_parameter_index == b.consensus_parameter_index;
 }
 
 BlockNum height(const BlockId& b) { return b.number; }
@@ -241,6 +241,9 @@ namespace rlp {
         Header rlp_head{.list = true};
         rlp_head.payload_length += length(b.transactions);
         rlp_head.payload_length += length(b.ommers);
+        if (b.consensus_parameter_index) {
+            rlp_head.payload_length += length(*b.consensus_parameter_index);
+        }
         if (b.withdrawals) {
             rlp_head.payload_length += length(*b.withdrawals);
         }
@@ -256,6 +259,9 @@ namespace rlp {
         encode_header(to, rlp_header_body(block_body));
         encode(to, block_body.transactions);
         encode(to, block_body.ommers);
+        if (block_body.consensus_parameter_index) {
+            encode(to, *block_body.consensus_parameter_index);
+        }
         if (block_body.withdrawals) {
             encode(to, *block_body.withdrawals);
         }
@@ -278,6 +284,15 @@ namespace rlp {
             return res;
         }
 
+        to.consensus_parameter_index = std::nullopt;
+        if (from.length() > leftover) {
+            uint64_t consensus_parameter_index;
+            if (DecodingResult res{decode(from, consensus_parameter_index, Leftover::kAllow)}; !res) {
+                return res;
+            }
+            to.consensus_parameter_index = consensus_parameter_index;
+        }
+
         to.withdrawals = std::nullopt;
         if (from.length() > leftover) {
             std::vector<Withdrawal> withdrawals;
@@ -310,6 +325,15 @@ namespace rlp {
             return res;
         }
 
+        to.consensus_parameter_index = std::nullopt;
+        if (from.length() > leftover) {
+            uint64_t consensus_parameter_index;
+            if (DecodingResult res{decode(from, consensus_parameter_index, Leftover::kAllow)}; !res) {
+                return res;
+            }
+            to.consensus_parameter_index = consensus_parameter_index;
+        }
+
         to.withdrawals = std::nullopt;
         if (from.length() > leftover) {
             std::vector<Withdrawal> withdrawals;
@@ -341,6 +365,9 @@ namespace rlp {
         encode(to, block.header);
         encode(to, block.transactions);
         encode(to, block.ommers);
+        if (block.consensus_parameter_index) {
+            encode(to, *block.consensus_parameter_index);
+        }
         if (block.withdrawals) {
             encode(to, *block.withdrawals);
         }

silkworm/core/types/block.hpp

@@ -32,6 +32,8 @@
 #include <silkworm/core/types/transaction.hpp>
 #include <silkworm/core/types/withdrawal.hpp>
 
+#include <eosevm/consensus_parameters.hpp>
+
 namespace silkworm {
 
 using TotalDifficulty = intx::uint256;
@@ -94,13 +96,17 @@ struct BlockBody {
     std::vector<BlockHeader> ommers;
     std::optional<std::vector<Withdrawal>> withdrawals{std::nullopt};
 
+    // EOS-EVM 
+    std::optional<uint64_t> consensus_parameter_index{std::nullopt};
+
     friend bool operator==(const BlockBody&, const BlockBody&);
 };
 
 struct Block : public BlockBody {
     BlockHeader header;
 
     bool irreversible{false};
+    std::optional<eosevm::ConsensusParameters> consensus_parameters_cache;
     void recover_senders();
 };
 

silkworm/core/types/block_test.cpp

@@ -104,6 +104,8 @@ TEST_CASE("BlockBody RLP 2") {
     body.ommers[0].prev_randao = 0xf0a53dfdd6c2f2a661e718ef29092de60d81d45f84044bec7bf4b36630b2bc08_bytes32;
     body.ommers[0].nonce[7] = 35;
 
+    body.consensus_parameter_index = 1234;
+
     Bytes rlp{};
     rlp::encode(rlp, body);
 

silkworm/node/CMakeLists.txt

@@ -87,6 +87,7 @@ endif()
 target_include_directories(silkworm_node PUBLIC "${SILKWORM_MAIN_DIR}")
 
 set(SILKWORM_NODE_PUBLIC_LIBS
+    eos_evm
     silkworm_core
     silkworm_infra
     silkworm_sentry

silkworm/node/db/access_layer.cpp

@@ -443,6 +443,7 @@ bool read_body(ROTxn& txn, const Bytes& key, bool read_senders, BlockBody& out)
     if (!out.transactions.empty() && read_senders) {
         parse_senders(txn, key, out.transactions);
     }
+    out.consensus_parameter_index = body.consensus_parameter_index;
     return true;
 }
 
@@ -498,6 +499,7 @@ void write_body(RWTxn& txn, const BlockBody& body, const uint8_t (&hash)[kHashLe
     body_for_storage.txn_count = body.transactions.size();
     body_for_storage.base_txn_id =
         increment_map_sequence(txn, table::kBlockTransactions.name, body_for_storage.txn_count);
+    body_for_storage.consensus_parameter_index = body.consensus_parameter_index;
     Bytes value{body_for_storage.encode()};
     auto key{db::block_key(number, hash)};
 
@@ -1217,4 +1219,22 @@ void write_runtime_states_u64(RWTxn& txn, uint64_t num, RuntimeState runtime_sta
     write_runtime_states_bytes(txn, value, runtime_state);
 }
 
+std::optional<eosevm::ConsensusParameters> read_consensus_parameters(ROTxn& txn, BlockNum index) {
+    auto cursor = txn.ro_cursor(table::kConsensusParameters);
+    auto key{db::block_key(index)};
+    auto data{cursor->find(to_slice(key), /*throw_notfound=*/false)};
+    if (!data) {
+        return std::nullopt;
+    }
+    const auto encoded = from_slice(data.value);
+    return eosevm::ConsensusParameters::decode(encoded);
+}
+
+void update_consensus_parameters(RWTxn& txn, BlockNum index, const eosevm::ConsensusParameters& config) {
+    auto cursor = txn.rw_cursor(table::kConsensusParameters);
+    auto key{db::block_key(index)};
+
+    cursor->upsert(to_slice(key), mdbx::slice(config.encode()));
+}
+
 }  // namespace silkworm::db

silkworm/node/db/access_layer.hpp

@@ -32,6 +32,8 @@
 #include <silkworm/node/db/util.hpp>
 #include <silkworm/node/snapshot/repository.hpp>
 
+#include <eosevm/consensus_parameters.hpp>
+
 namespace silkworm::db {
 
 //! \brief Pulls database schema version
@@ -249,6 +251,12 @@ std::optional<uint64_t> read_runtime_states_u64(ROTxn& txn, RuntimeState runtime
 //! \brief  Write uint64_t as runtime states by index
 void write_runtime_states_u64(RWTxn& txn, uint64_t num, RuntimeState runtime_state);
 
+//! \brief  Read ConsensusParameters indexed by blocknum that it is added.
+std::optional<eosevm::ConsensusParameters> read_consensus_parameters(ROTxn& txn, BlockNum index);
+
+//! \brief  Write ConsensusParameters indexed by blocknum that it is added. Can overwrite during forks.
+void update_consensus_parameters(RWTxn& txn, BlockNum index, const eosevm::ConsensusParameters& config);
+
 class DataModel {
   public:
     static void set_snapshot_repository(snapshot::SnapshotRepository* repository);