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Merge 215787789b into 888b71b3cf

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Felix Lange 2025-08-07 23:08:37 +02:00 committed by GitHub
commit 308d4008c6
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GPG key ID: B5690EEEBB952194
47 changed files with 1885 additions and 368 deletions
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18
consensus/beacon/consensus.go
View file

@ -30,6 +30,7 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/ethereum/go-ethereum/trie"
"github.com/holiman/uint256"
)
@ -74,11 +75,12 @@ func New(ethone consensus.Engine) *Beacon {
// isPostMerge reports whether the given block number is assumed to be post-merge.
// Here we check the MergeNetsplitBlock to allow configuring networks with a PoW or
// PoA chain for unit testing purposes.
func isPostMerge(config *params.ChainConfig, blockNum uint64, timestamp uint64) bool {
mergedAtGenesis := config.TerminalTotalDifficulty != nil && config.TerminalTotalDifficulty.Sign() == 0
func isPostMerge(config *params.Config2, blockNum uint64, timestamp uint64) bool {
ttd := params.TerminalTotalDifficulty.Get(config)
mergedAtGenesis := ttd != nil && ttd.Sign() == 0
return mergedAtGenesis ||
config.MergeNetsplitBlock != nil && blockNum >= config.MergeNetsplitBlock.Uint64() ||
config.ShanghaiTime != nil && timestamp >= *config.ShanghaiTime
config.Active(forks.Paris, blockNum, timestamp) ||
config.Active(forks.Shanghai, blockNum, timestamp)
}
// Author implements consensus.Engine, returning the verified author of the block.
@ -256,7 +258,7 @@ func (beacon *Beacon) verifyHeader(chain consensus.ChainHeaderReader, header, pa
return err
}
// Verify existence / non-existence of withdrawalsHash.
shanghai := chain.Config().IsShanghai(header.Number, header.Time)
shanghai := chain.Config().Active(forks.Shanghai, header.Number.Uint64(), header.Time)
if shanghai && header.WithdrawalsHash == nil {
return errors.New("missing withdrawalsHash")
}
@ -264,7 +266,7 @@ func (beacon *Beacon) verifyHeader(chain consensus.ChainHeaderReader, header, pa
return fmt.Errorf("invalid withdrawalsHash: have %x, expected nil", header.WithdrawalsHash)
}
// Verify the existence / non-existence of cancun-specific header fields
cancun := chain.Config().IsCancun(header.Number, header.Time)
cancun := chain.Config().Active(forks.Cancun, header.Number.Uint64(), header.Time)
if !cancun {
switch {
case header.ExcessBlobGas != nil:
@ -357,7 +359,7 @@ func (beacon *Beacon) FinalizeAndAssemble(chain consensus.ChainHeaderReader, hea
if !beacon.IsPoSHeader(header) {
return beacon.ethone.FinalizeAndAssemble(chain, header, state, body, receipts)
}
shanghai := chain.Config().IsShanghai(header.Number, header.Time)
shanghai := chain.Config().Active(forks.Shanghai, header.Number.Uint64(), header.Time)
if shanghai {
// All blocks after Shanghai must include a withdrawals root.
if body.Withdrawals == nil {
@ -379,7 +381,7 @@ func (beacon *Beacon) FinalizeAndAssemble(chain consensus.ChainHeaderReader, hea
// Create the block witness and attach to block.
// This step needs to happen as late as possible to catch all access events.
if chain.Config().IsVerkle(header.Number, header.Time) {
if chain.Config().Active(forks.Verkle, header.Number.Uint64(), header.Time) {
keys := state.AccessEvents().Keys()
// Open the pre-tree to prove the pre-state against

62
consensus/clique/clique.go
View file

@ -40,6 +40,7 @@ import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
"golang.org/x/crypto/sha3"
@ -51,20 +52,25 @@ const (
inmemorySignatures = 4096 // Number of recent block signatures to keep in memory
)
const (
ExtraVanity = 32 // Fixed number of extra-data prefix bytes reserved for signer vanity
ExtraSeal = crypto.SignatureLength // Fixed number of extra-data suffix bytes reserved for signer seal
DiffInTurn = 2 // Block difficulty for in-turn signatures
DiffNoTurn = 1 // Block difficulty for out-of-turn signatures
)
// Clique proof-of-authority protocol constants.
var (
epochLength = uint64(30000) // Default number of blocks after which to checkpoint and reset the pending votes
extraVanity = 32 // Fixed number of extra-data prefix bytes reserved for signer vanity
extraSeal = crypto.SignatureLength // Fixed number of extra-data suffix bytes reserved for signer seal
nonceAuthVote = hexutil.MustDecode("0xffffffffffffffff") // Magic nonce number to vote on adding a new signer
nonceDropVote = hexutil.MustDecode("0x0000000000000000") // Magic nonce number to vote on removing a signer.
uncleHash = types.CalcUncleHash(nil) // Always Keccak256(RLP([])) as uncles are meaningless outside of PoW.
diffInTurn = big.NewInt(2) // Block difficulty for in-turn signatures
diffNoTurn = big.NewInt(1) // Block difficulty for out-of-turn signatures
diffInTurn = big.NewInt(DiffInTurn)
diffNoTurn = big.NewInt(DiffNoTurn)
)
// Various error messages to mark blocks invalid. These should be private to
@ -145,10 +151,10 @@ func ecrecover(header *types.Header, sigcache *sigLRU) (common.Address, error) {
return address, nil
}
// Retrieve the signature from the header extra-data
if len(header.Extra) < extraSeal {
if len(header.Extra) < ExtraSeal {
return common.Address{}, errMissingSignature
}
signature := header.Extra[len(header.Extra)-extraSeal:]
signature := header.Extra[len(header.Extra)-ExtraSeal:]
// Recover the public key and the Ethereum address
pubkey, err := crypto.Ecrecover(SealHash(header).Bytes(), signature)
@ -165,7 +171,7 @@ func ecrecover(header *types.Header, sigcache *sigLRU) (common.Address, error) {
// Clique is the proof-of-authority consensus engine proposed to support the
// Ethereum testnet following the Ropsten attacks.
type Clique struct {
config *params.CliqueConfig // Consensus engine configuration parameters
config *Config // Consensus engine configuration parameters
db ethdb.Database // Database to store and retrieve snapshot checkpoints
recents *lru.Cache[common.Hash, *Snapshot] // Snapshots for recent block to speed up reorgs
@ -182,18 +188,17 @@ type Clique struct {
// New creates a Clique proof-of-authority consensus engine with the initial
// signers set to the ones provided by the user.
func New(config *params.CliqueConfig, db ethdb.Database) *Clique {
func New(config Config, db ethdb.Database) *Clique {
// Set any missing consensus parameters to their defaults
conf := *config
if conf.Epoch == 0 {
conf.Epoch = epochLength
if config.Epoch == 0 {
config.Epoch = epochLength
}
// Allocate the snapshot caches and create the engine
recents := lru.NewCache[common.Hash, *Snapshot](inmemorySnapshots)
signatures := lru.NewCache[common.Hash, common.Address](inmemorySignatures)
return &Clique{
config: &conf,
config: &config,
db: db,
recents: recents,
signatures: signatures,
@ -260,14 +265,14 @@ func (c *Clique) verifyHeader(chain consensus.ChainHeaderReader, header *types.H
return errInvalidCheckpointVote
}
// Check that the extra-data contains both the vanity and signature
if len(header.Extra) < extraVanity {
if len(header.Extra) < ExtraVanity {
return errMissingVanity
}
if len(header.Extra) < extraVanity+extraSeal {
if len(header.Extra) < ExtraVanity+ExtraSeal {
return errMissingSignature
}
// Ensure that the extra-data contains a signer list on checkpoint, but none otherwise
signersBytes := len(header.Extra) - extraVanity - extraSeal
signersBytes := len(header.Extra) - ExtraVanity - ExtraSeal
if !checkpoint && signersBytes != 0 {
return errExtraSigners
}
@ -292,14 +297,14 @@ func (c *Clique) verifyHeader(chain consensus.ChainHeaderReader, header *types.H
if header.GasLimit > params.MaxGasLimit {
return fmt.Errorf("invalid gasLimit: have %v, max %v", header.GasLimit, params.MaxGasLimit)
}
if chain.Config().IsShanghai(header.Number, header.Time) {
if chain.Config().Active(forks.Shanghai, header.Number.Uint64(), header.Time) {
return errors.New("clique does not support shanghai fork")
}
// Verify the non-existence of withdrawalsHash.
if header.WithdrawalsHash != nil {
return fmt.Errorf("invalid withdrawalsHash: have %x, expected nil", header.WithdrawalsHash)
}
if chain.Config().IsCancun(header.Number, header.Time) {
if chain.Config().Active(forks.Cancun, header.Number.Uint64(), header.Time) {
return errors.New("clique does not support cancun fork")
}
// Verify the non-existence of cancun-specific header fields
@ -342,7 +347,7 @@ func (c *Clique) verifyCascadingFields(chain consensus.ChainHeaderReader, header
if header.GasUsed > header.GasLimit {
return fmt.Errorf("invalid gasUsed: have %d, gasLimit %d", header.GasUsed, header.GasLimit)
}
if !chain.Config().IsLondon(header.Number) {
if !chain.Config().Active(forks.London, header.Number.Uint64(), header.Time) {
// Verify BaseFee not present before EIP-1559 fork.
if header.BaseFee != nil {
return fmt.Errorf("invalid baseFee before fork: have %d, want <nil>", header.BaseFee)
@ -365,8 +370,8 @@ func (c *Clique) verifyCascadingFields(chain consensus.ChainHeaderReader, header
for i, signer := range snap.signers() {
copy(signers[i*common.AddressLength:], signer[:])
}
extraSuffix := len(header.Extra) - extraSeal
if !bytes.Equal(header.Extra[extraVanity:extraSuffix], signers) {
extraSuffix := len(header.Extra) - ExtraSeal
if !bytes.Equal(header.Extra[ExtraVanity:extraSuffix], signers) {
return errMismatchingCheckpointSigners
}
}
@ -404,9 +409,9 @@ func (c *Clique) snapshot(chain consensus.ChainHeaderReader, number uint64, hash
if checkpoint != nil {
hash := checkpoint.Hash()
signers := make([]common.Address, (len(checkpoint.Extra)-extraVanity-extraSeal)/common.AddressLength)
signers := make([]common.Address, (len(checkpoint.Extra)-ExtraVanity-ExtraSeal)/common.AddressLength)
for i := 0; i < len(signers); i++ {
copy(signers[i][:], checkpoint.Extra[extraVanity+i*common.AddressLength:])
copy(signers[i][:], checkpoint.Extra[ExtraVanity+i*common.AddressLength:])
}
snap = newSnapshot(c.config, c.signatures, number, hash, signers)
if err := snap.store(c.db); err != nil {
@ -544,17 +549,17 @@ func (c *Clique) Prepare(chain consensus.ChainHeaderReader, header *types.Header
header.Difficulty = calcDifficulty(snap, signer)
// Ensure the extra data has all its components
if len(header.Extra) < extraVanity {
header.Extra = append(header.Extra, bytes.Repeat([]byte{0x00}, extraVanity-len(header.Extra))...)
if len(header.Extra) < ExtraVanity {
header.Extra = append(header.Extra, bytes.Repeat([]byte{0x00}, ExtraVanity-len(header.Extra))...)
}
header.Extra = header.Extra[:extraVanity]
header.Extra = header.Extra[:ExtraVanity]
if number%c.config.Epoch == 0 {
for _, signer := range snap.signers() {
header.Extra = append(header.Extra, signer[:]...)
}
}
header.Extra = append(header.Extra, make([]byte, extraSeal)...)
header.Extra = append(header.Extra, make([]byte, ExtraSeal)...)
// Mix digest is reserved for now, set to empty
header.MixDigest = common.Hash{}
@ -587,7 +592,8 @@ func (c *Clique) FinalizeAndAssemble(chain consensus.ChainHeaderReader, header *
c.Finalize(chain, header, state, body)
// Assign the final state root to header.
header.Root = state.IntermediateRoot(chain.Config().IsEIP158(header.Number))
deleteEmptyObjects := chain.Config().Active(forks.SpuriousDragon, header.Number.Uint64(), header.Time)
header.Root = state.IntermediateRoot(deleteEmptyObjects)
// Assemble and return the final block for sealing.
return types.NewBlock(header, &types.Body{Transactions: body.Transactions}, receipts, trie.NewStackTrie(nil)), nil

14
consensus/clique/clique_test.go
View file

@ -14,13 +14,14 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package clique
package clique_test
import (
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/clique"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
@ -40,18 +41,19 @@ func TestReimportMirroredState(t *testing.T) {
db = rawdb.NewMemoryDatabase()
key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr = crypto.PubkeyToAddress(key.PublicKey)
engine = New(params.AllCliqueProtocolChanges.Clique, db)
config = clique.ConfigParam.Get(presets.AllCliqueProtocolChanges)
engine = clique.New(config, db)
signer = new(types.HomesteadSigner)
)
genspec := &core.Genesis{
Config: params.AllCliqueProtocolChanges,
ExtraData: make([]byte, extraVanity+common.AddressLength+extraSeal),
ExtraData: make([]byte, clique.ExtraVanity+common.AddressLength+clique.ExtraSeal),
Alloc: map[common.Address]types.Account{
addr: {Balance: big.NewInt(10000000000000000)},
},
BaseFee: big.NewInt(params.InitialBaseFee),
}
copy(genspec.ExtraData[extraVanity:], addr[:])
copy(genspec.ExtraData[clique.ExtraVanity:], addr[:])
// Generate a batch of blocks, each properly signed
chain, _ := core.NewBlockChain(rawdb.NewMemoryDatabase(), genspec, engine, nil)
@ -60,7 +62,7 @@ func TestReimportMirroredState(t *testing.T) {
_, blocks, _ := core.GenerateChainWithGenesis(genspec, engine, 3, func(i int, block *core.BlockGen) {
// The chain maker doesn't have access to a chain, so the difficulty will be
// lets unset (nil). Set it here to the correct value.
block.SetDifficulty(diffInTurn)
block.SetDifficulty(big.NewInt(clique.DiffInTurn))
// We want to simulate an empty middle block, having the same state as the
// first one. The last is needs a state change again to force a reorg.
@ -80,7 +82,7 @@ func TestReimportMirroredState(t *testing.T) {
header.Extra = make([]byte, extraVanity+extraSeal)
header.Difficulty = diffInTurn
sig, _ := crypto.Sign(SealHash(header).Bytes(), key)
sig, _ := crypto.Sign(clique.SealHash(header).Bytes(), key)
copy(header.Extra[len(header.Extra)-extraSeal:], sig)
blocks[i] = block.WithSeal(header)
}

31
consensus/clique/config.go Normal file
View file

@ -0,0 +1,31 @@
// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package clique
import "github.com/ethereum/go-ethereum/params"
var ConfigParam = params.Define(params.T[Config]{
Name: "clique",
Optional: true, // optional says
Default: Config{},
})
// Config is the consensus engine configs for proof-of-authority based sealing.
type Config struct {
Period uint64 `json:"period"` // Number of seconds between blocks to enforce
Epoch uint64 `json:"epoch"` // Epoch length to reset votes and checkpoint
}

7
consensus/clique/snapshot.go
View file

@ -29,7 +29,6 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
)
// Vote represents a single vote that an authorized signer made to modify the
@ -52,7 +51,7 @@ type sigLRU = lru.Cache[common.Hash, common.Address]
// Snapshot is the state of the authorization voting at a given point in time.
type Snapshot struct {
config *params.CliqueConfig // Consensus engine parameters to fine tune behavior
config *Config // Consensus engine parameters to fine tune behavior
sigcache *sigLRU // Cache of recent block signatures to speed up ecrecover
Number uint64 `json:"number"` // Block number where the snapshot was created
@ -66,7 +65,7 @@ type Snapshot struct {
// newSnapshot creates a new snapshot with the specified startup parameters. This
// method does not initialize the set of recent signers, so only ever use if for
// the genesis block.
func newSnapshot(config *params.CliqueConfig, sigcache *sigLRU, number uint64, hash common.Hash, signers []common.Address) *Snapshot {
func newSnapshot(config *Config, sigcache *sigLRU, number uint64, hash common.Hash, signers []common.Address) *Snapshot {
snap := &Snapshot{
config: config,
sigcache: sigcache,
@ -83,7 +82,7 @@ func newSnapshot(config *params.CliqueConfig, sigcache *sigLRU, number uint64, h
}
// loadSnapshot loads an existing snapshot from the database.
func loadSnapshot(config *params.CliqueConfig, sigcache *sigLRU, db ethdb.Database, hash common.Hash) (*Snapshot, error) {
func loadSnapshot(config *Config, sigcache *sigLRU, db ethdb.Database, hash common.Hash) (*Snapshot, error) {
blob, err := db.Get(append(rawdb.CliqueSnapshotPrefix, hash[:]...))
if err != nil {
return nil, err

2
consensus/clique/snapshot_test.go
View file

@ -14,7 +14,7 @@
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package clique
package clique_test
import (
"bytes"

2
consensus/consensus.go
View file

@ -31,7 +31,7 @@ import (
// blockchain during header verification.
type ChainHeaderReader interface {
// Config retrieves the blockchain's chain configuration.
Config() *params.ChainConfig
Config() *params.Config2
// CurrentHeader retrieves the current header from the local chain.
CurrentHeader() *types.Header

31
consensus/ethash/consensus.go
View file

@ -32,6 +32,7 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
"github.com/holiman/uint256"
@ -249,7 +250,7 @@ func (ethash *Ethash) verifyHeader(chain consensus.ChainHeaderReader, header, pa
return fmt.Errorf("invalid gasUsed: have %d, gasLimit %d", header.GasUsed, header.GasLimit)
}
// Verify the block's gas usage and (if applicable) verify the base fee.
if !chain.Config().IsLondon(header.Number) {
if !chain.Config().ActiveAtBlock(forks.London, header.Number) {
// Verify BaseFee not present before EIP-1559 fork.
if header.BaseFee != nil {
return fmt.Errorf("invalid baseFee before fork: have %d, expected 'nil'", header.BaseFee)
@ -265,14 +266,14 @@ func (ethash *Ethash) verifyHeader(chain consensus.ChainHeaderReader, header, pa
if diff := new(big.Int).Sub(header.Number, parent.Number); diff.Cmp(big.NewInt(1)) != 0 {
return consensus.ErrInvalidNumber
}
if chain.Config().IsShanghai(header.Number, header.Time) {
if chain.Config().Active(forks.Shanghai, header.Number.Uint64(), header.Time) {
return errors.New("ethash does not support shanghai fork")
}
// Verify the non-existence of withdrawalsHash.
if header.WithdrawalsHash != nil {
return fmt.Errorf("invalid withdrawalsHash: have %x, expected nil", header.WithdrawalsHash)
}
if chain.Config().IsCancun(header.Number, header.Time) {
if chain.Config().Active(forks.Cancun, header.Number.Uint64(), header.Time) {
return errors.New("ethash does not support cancun fork")
}
// Verify the non-existence of cancun-specific header fields
@ -308,22 +309,22 @@ func (ethash *Ethash) CalcDifficulty(chain consensus.ChainHeaderReader, time uin
// CalcDifficulty is the difficulty adjustment algorithm. It returns
// the difficulty that a new block should have when created at time
// given the parent block's time and difficulty.
func CalcDifficulty(config *params.ChainConfig, time uint64, parent *types.Header) *big.Int {
func CalcDifficulty(config *params.Config2, time uint64, parent *types.Header) *big.Int {
next := new(big.Int).Add(parent.Number, big1)
switch {
case config.IsGrayGlacier(next):
case config.ActiveAtBlock(forks.GrayGlacier, next):
return calcDifficultyEip5133(time, parent)
case config.IsArrowGlacier(next):
case config.ActiveAtBlock(forks.ArrowGlacier, next):
return calcDifficultyEip4345(time, parent)
case config.IsLondon(next):
case config.ActiveAtBlock(forks.London, next):
return calcDifficultyEip3554(time, parent)
case config.IsMuirGlacier(next):
case config.ActiveAtBlock(forks.MuirGlacier, next):
return calcDifficultyEip2384(time, parent)
case config.IsConstantinople(next):
case config.ActiveAtBlock(forks.Constantinople, next):
return calcDifficultyConstantinople(time, parent)
case config.IsByzantium(next):
case config.ActiveAtBlock(forks.Byzantium, next):
return calcDifficultyByzantium(time, parent)
case config.IsHomestead(next):
case config.ActiveAtBlock(forks.Homestead, next):
return calcDifficultyHomestead(time, parent)
default:
return calcDifficultyFrontier(time, parent)
@ -519,7 +520,7 @@ func (ethash *Ethash) FinalizeAndAssemble(chain consensus.ChainHeaderReader, hea
ethash.Finalize(chain, header, state, body)
// Assign the final state root to header.
header.Root = state.IntermediateRoot(chain.Config().IsEIP158(header.Number))
header.Root = state.IntermediateRoot(chain.Config().ActiveAtBlock(forks.SpuriousDragon, header.Number))
// Header seems complete, assemble into a block and return
return types.NewBlock(header, &types.Body{Transactions: body.Transactions, Uncles: body.Uncles}, receipts, trie.NewStackTrie(nil)), nil
@ -567,13 +568,13 @@ func (ethash *Ethash) SealHash(header *types.Header) (hash common.Hash) {
// accumulateRewards credits the coinbase of the given block with the mining
// reward. The total reward consists of the static block reward and rewards for
// included uncles. The coinbase of each uncle block is also rewarded.
func accumulateRewards(config *params.ChainConfig, stateDB vm.StateDB, header *types.Header, uncles []*types.Header) {
func accumulateRewards(config *params.Config2, stateDB vm.StateDB, header *types.Header, uncles []*types.Header) {
// Select the correct block reward based on chain progression
blockReward := FrontierBlockReward
if config.IsByzantium(header.Number) {
if config.ActiveAtBlock(forks.Byzantium, header.Number) {
blockReward = ByzantiumBlockReward
}
if config.IsConstantinople(header.Number) {
if config.ActiveAtBlock(forks.Constantinople, header.Number) {
blockReward = ConstantinopleBlockReward
}
// Accumulate the rewards for the miner and any included uncles

3
consensus/ethash/consensus_test.go
View file

@ -30,6 +30,7 @@ import (
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
)
type diffTest struct {
@ -74,7 +75,7 @@ func TestCalcDifficulty(t *testing.T) {
t.Fatal(err)
}
config := &params.ChainConfig{HomesteadBlock: big.NewInt(1150000)}
config := params.NewConfig2(params.Activations{forks.Homestead: 1150000})
for name, test := range tests {
number := new(big.Int).Sub(test.CurrentBlocknumber, big.NewInt(1))

15
consensus/misc/dao.go
View file

@ -19,12 +19,12 @@ package misc
import (
"bytes"
"errors"
"math/big"
"github.com/ethereum/go-ethereum/core/tracing"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
)
var (
@ -46,18 +46,21 @@ var (
// with the fork specific extra-data set.
// - if the node is pro-fork, require blocks in the specific range to have the
// unique extra-data set.
func VerifyDAOHeaderExtraData(config *params.ChainConfig, header *types.Header) error {
func VerifyDAOHeaderExtraData(config *params.Config2, header *types.Header) error {
// Short circuit validation if the node doesn't care about the DAO fork
if config.DAOForkBlock == nil {
if !config.Scheduled(forks.DAO) {
return nil
}
// Make sure the block is within the fork's modified extra-data range
limit := new(big.Int).Add(config.DAOForkBlock, params.DAOForkExtraRange)
if header.Number.Cmp(config.DAOForkBlock) < 0 || header.Number.Cmp(limit) >= 0 {
activation, _ := config.Activation(forks.DAO)
limit := activation + uint64(params.DAOForkExtraRange)
if header.Number.Uint64() < activation || header.Number.Uint64() >= limit {
return nil
}
// Depending on whether we support or oppose the fork, validate the extra-data contents
if config.DAOForkSupport {
if params.DAOForkSupport.Get(config) {
if !bytes.Equal(header.Extra, params.DAOForkBlockExtra) {
return ErrBadProDAOExtra
}

35
consensus/misc/eip1559/eip1559.go
View file

@ -25,16 +25,33 @@ import (
"github.com/ethereum/go-ethereum/consensus/misc"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
)
var FeeConfigParam = params.Define(params.T[FeeConfig]{
Name: "eip1559Config",
Optional: true,
Default: FeeConfig{
ElasticityMultiplier: params.DefaultElasticityMultiplier,
BaseFeeChangeDenominator: params.DefaultBaseFeeChangeDenominator,
},
})
type FeeConfig struct {
ElasticityMultiplier uint64 `json:"elasticityMultiplier"`
BaseFeeChangeDenominator uint64 `json:"baseFeeChangeDenominator"`
}
// VerifyEIP1559Header verifies some header attributes which were changed in EIP-1559,
// - gas limit check
// - basefee check
func VerifyEIP1559Header(config *params.ChainConfig, parent, header *types.Header) error {
func VerifyEIP1559Header(config *params.Config2, parent, header *types.Header) error {
feecfg := FeeConfigParam.Get(config)
// Verify that the gas limit remains within allowed bounds
parentGasLimit := parent.GasLimit
if !config.IsLondon(parent.Number) {
parentGasLimit = parent.GasLimit * config.ElasticityMultiplier()
if !config.Active(forks.London, parent.Number.Uint64(), parent.Time) {
parentGasLimit = parent.GasLimit * feecfg.ElasticityMultiplier
}
if err := misc.VerifyGaslimit(parentGasLimit, header.GasLimit); err != nil {
return err
@ -53,13 +70,15 @@ func VerifyEIP1559Header(config *params.ChainConfig, parent, header *types.Heade
}
// CalcBaseFee calculates the basefee of the header.
func CalcBaseFee(config *params.ChainConfig, parent *types.Header) *big.Int {
func CalcBaseFee(config *params.Config2, parent *types.Header) *big.Int {
feecfg := FeeConfigParam.Get(config)
// If the current block is the first EIP-1559 block, return the InitialBaseFee.
if !config.IsLondon(parent.Number) {
if !config.Active(forks.London, parent.Number.Uint64(), parent.Time) {
return new(big.Int).SetUint64(params.InitialBaseFee)
}
parentGasTarget := parent.GasLimit / config.ElasticityMultiplier()
parentGasTarget := parent.GasLimit / feecfg.ElasticityMultiplier
// If the parent gasUsed is the same as the target, the baseFee remains unchanged.
if parent.GasUsed == parentGasTarget {
return new(big.Int).Set(parent.BaseFee)
@ -76,7 +95,7 @@ func CalcBaseFee(config *params.ChainConfig, parent *types.Header) *big.Int {
num.SetUint64(parent.GasUsed - parentGasTarget)
num.Mul(num, parent.BaseFee)
num.Div(num, denom.SetUint64(parentGasTarget))
num.Div(num, denom.SetUint64(config.BaseFeeChangeDenominator()))
num.Div(num, denom.SetUint64(feecfg.BaseFeeChangeDenominator))
if num.Cmp(common.Big1) < 0 {
return num.Add(parent.BaseFee, common.Big1)
}
@ -87,7 +106,7 @@ func CalcBaseFee(config *params.ChainConfig, parent *types.Header) *big.Int {
num.SetUint64(parentGasTarget - parent.GasUsed)
num.Mul(num, parent.BaseFee)
num.Div(num, denom.SetUint64(parentGasTarget))
num.Div(num, denom.SetUint64(config.BaseFeeChangeDenominator()))
num.Div(num, denom.SetUint64(feecfg.BaseFeeChangeDenominator))
baseFee := num.Sub(parent.BaseFee, num)
if baseFee.Cmp(common.Big0) < 0 {

34
consensus/misc/eip1559/eip1559_test.go
View file

@ -23,35 +23,15 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/ethereum/go-ethereum/params/presets"
)
// copyConfig does a _shallow_ copy of a given config. Safe to set new values, but
// do not use e.g. SetInt() on the numbers. For testing only
func copyConfig(original *params.ChainConfig) *params.ChainConfig {
return &params.ChainConfig{
ChainID: original.ChainID,
HomesteadBlock: original.HomesteadBlock,
DAOForkBlock: original.DAOForkBlock,
DAOForkSupport: original.DAOForkSupport,
EIP150Block: original.EIP150Block,
EIP155Block: original.EIP155Block,
EIP158Block: original.EIP158Block,
ByzantiumBlock: original.ByzantiumBlock,
ConstantinopleBlock: original.ConstantinopleBlock,
PetersburgBlock: original.PetersburgBlock,
IstanbulBlock: original.IstanbulBlock,
MuirGlacierBlock: original.MuirGlacierBlock,
BerlinBlock: original.BerlinBlock,
LondonBlock: original.LondonBlock,
TerminalTotalDifficulty: original.TerminalTotalDifficulty,
Ethash: original.Ethash,
Clique: original.Clique,
}
}
func config() *params.ChainConfig {
config := copyConfig(params.TestChainConfig)
config.LondonBlock = big.NewInt(5)
func config() *params.Config2 {
config := presets.AllEthashProtocolChanges
config = config.SetActivations(params.Activations{
forks.London: 5,
})
return config
}

131
consensus/misc/eip4844/eip4844.go
View file

@ -19,10 +19,12 @@ package eip4844
import (
"errors"
"fmt"
"math"
"math/big"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
)
var (
@ -32,10 +34,11 @@ var (
// VerifyEIP4844Header verifies the presence of the excessBlobGas field and that
// if the current block contains no transactions, the excessBlobGas is updated
// accordingly.
func VerifyEIP4844Header(config *params.ChainConfig, parent, header *types.Header) error {
func VerifyEIP4844Header(config *params.Config2, parent, header *types.Header) error {
if header.Number.Uint64() != parent.Number.Uint64()+1 {
panic("bad header pair")
}
// Verify the header is not malformed
if header.ExcessBlobGas == nil {
return errors.New("header is missing excessBlobGas")
@ -43,8 +46,14 @@ func VerifyEIP4844Header(config *params.ChainConfig, parent, header *types.Heade
if header.BlobGasUsed == nil {
return errors.New("header is missing blobGasUsed")
}
blobcfg := scheduleAtTime(config, header.Time)
if blobcfg == nil {
return fmt.Errorf("blob schedule is undefined at time %d", header.Time)
}
// Verify that the blob gas used remains within reasonable limits.
maxBlobGas := MaxBlobGasPerBlock(config, header.Time)
maxBlobGas := uint64(blobcfg.Max) * params.BlobTxBlobGasPerBlob
if *header.BlobGasUsed > maxBlobGas {
return fmt.Errorf("blob gas used %d exceeds maximum allowance %d", *header.BlobGasUsed, maxBlobGas)
}
@ -61,7 +70,7 @@ func VerifyEIP4844Header(config *params.ChainConfig, parent, header *types.Heade
// CalcExcessBlobGas calculates the excess blob gas after applying the set of
// blobs on top of the excess blob gas.
func CalcExcessBlobGas(config *params.ChainConfig, parent *types.Header, headTimestamp uint64) uint64 {
func CalcExcessBlobGas(config *params.Config2, parent *types.Header, headTimestamp uint64) uint64 {
var (
parentExcessBlobGas uint64
parentBlobGasUsed uint64
@ -78,7 +87,7 @@ func CalcExcessBlobGas(config *params.ChainConfig, parent *types.Header, headTim
if excessBlobGas < targetGas {
return 0
}
if !config.IsOsaka(config.LondonBlock, headTimestamp) {
if !config.Active(forks.Osaka, parent.Number.Uint64()+1, headTimestamp) {
// Pre-Osaka, we use the formula defined by EIP-4844.
return excessBlobGas - targetGas
}
@ -98,94 +107,64 @@ func CalcExcessBlobGas(config *params.ChainConfig, parent *types.Header, headTim
}
// CalcBlobFee calculates the blobfee from the header's excess blob gas field.
func CalcBlobFee(config *params.ChainConfig, header *types.Header) *big.Int {
blobConfig := latestBlobConfig(config, header.Time)
if blobConfig == nil {
panic("calculating blob fee on unsupported fork")
func CalcBlobFee(config *params.Config2, header *types.Header) *big.Int {
blobcfg := scheduleAtTime(config, header.Time)
if blobcfg == nil {
return new(big.Int)
}
return fakeExponential(minBlobGasPrice, new(big.Int).SetUint64(*header.ExcessBlobGas), new(big.Int).SetUint64(blobConfig.UpdateFraction))
frac := blobcfg.UpdateFraction
return fakeExponential(minBlobGasPrice, new(big.Int).SetUint64(*header.ExcessBlobGas), new(big.Int).SetUint64(frac))
}
// MaxBlobsPerBlock returns the max blobs per block for a block at the given timestamp.
func MaxBlobsPerBlock(cfg *params.ChainConfig, time uint64) int {
blobConfig := latestBlobConfig(cfg, time)
if blobConfig == nil {
func MaxBlobsPerBlock(cfg *params.Config2, time uint64) int {
blobcfg := scheduleAtTime(cfg, time)
if blobcfg == nil {
return 0
}
return blobConfig.Max
return blobcfg.Max
}
func latestBlobConfig(cfg *params.ChainConfig, time uint64) *params.BlobConfig {
if cfg.BlobScheduleConfig == nil {
return nil
}
var (
london = cfg.LondonBlock
s = cfg.BlobScheduleConfig
)
switch {
case cfg.IsBPO5(london, time) && s.BPO5 != nil:
return s.BPO5
case cfg.IsBPO4(london, time) && s.BPO4 != nil:
return s.BPO4
case cfg.IsBPO3(london, time) && s.BPO3 != nil:
return s.BPO3
case cfg.IsBPO2(london, time) && s.BPO2 != nil:
return s.BPO2
case cfg.IsBPO1(london, time) && s.BPO1 != nil:
return s.BPO1
case cfg.IsOsaka(london, time) && s.Osaka != nil:
return s.Osaka
case cfg.IsPrague(london, time) && s.Prague != nil:
return s.Prague
case cfg.IsCancun(london, time) && s.Cancun != nil:
return s.Cancun
default:
return nil
}
}
// MaxBlobGasPerBlock returns the maximum blob gas that can be spent in a block at the given timestamp.
func MaxBlobGasPerBlock(cfg *params.ChainConfig, time uint64) uint64 {
// MaxBlobsPerBlock returns the maximum blob gas that can be spent in a block at the given timestamp.
func MaxBlobGasPerBlock(cfg *params.Config2, time uint64) uint64 {
return uint64(MaxBlobsPerBlock(cfg, time)) * params.BlobTxBlobGasPerBlob
}
// LatestMaxBlobsPerBlock returns the latest max blobs per block defined by the
// configuration, regardless of the currently active fork.
func LatestMaxBlobsPerBlock(cfg *params.ChainConfig) int {
s := cfg.BlobScheduleConfig
if s == nil {
return 0
}
switch {
case s.BPO5 != nil:
return s.BPO5.Max
case s.BPO4 != nil:
return s.BPO4.Max
case s.BPO3 != nil:
return s.BPO3.Max
case s.BPO2 != nil:
return s.BPO2.Max
case s.BPO1 != nil:
return s.BPO1.Max
case s.Osaka != nil:
return s.Osaka.Max
case s.Prague != nil:
return s.Prague.Max
case s.Cancun != nil:
return s.Cancun.Max
default:
return 0
}
func LatestMaxBlobsPerBlock(cfg *params.Config2) int {
blobcfg := scheduleAtTime(cfg, math.MaxUint64)
return blobcfg.Max
}
// targetBlobsPerBlock returns the target number of blobs in a block at the given timestamp.
func targetBlobsPerBlock(cfg *params.ChainConfig, time uint64) int {
blobConfig := latestBlobConfig(cfg, time)
if blobConfig == nil {
return 0
func targetBlobsPerBlock(cfg *params.Config2, time uint64) int {
return scheduleAtTime(cfg, time).Target
}
return blobConfig.Target
// scheduleAtTime resolves the blob schedule at the given timestamp.
func scheduleAtTime(cfg *params.Config2, time uint64) *params.BlobConfig {
schedule := params.BlobSchedule.Get(cfg)
if schedule == nil {
return nil
}
// Find the latest fork defined by the schedule.
forkList := make([]forks.Fork, 0, len(schedule))
for f := range schedule {
act, ok := cfg.Activation(f)
if ok && act <= time {
forkList = append(forkList, f)
}
}
forkList = forks.DependencyOrder(forkList)
// Return the blob config of the last available fork.
if len(forkList) == 0 {
return nil
}
blobcfg := schedule[forkList[len(forkList)-1]]
return &blobcfg
}
// fakeExponential approximates factor * e ** (numerator / denominator) using
@ -206,7 +185,7 @@ func fakeExponential(factor, numerator, denominator *big.Int) *big.Int {
}
// calcBlobPrice calculates the blob price for a block.
func calcBlobPrice(config *params.ChainConfig, header *types.Header) *big.Int {
func calcBlobPrice(config *params.Config2, header *types.Header) *big.Int {
blobBaseFee := CalcBlobFee(config, header)
return new(big.Int).Mul(blobBaseFee, big.NewInt(params.BlobTxBlobGasPerBlob))
}

30
consensus/misc/eip4844/eip4844_test.go
View file

@ -23,12 +23,15 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/ethereum/go-ethereum/params/presets"
)
func TestCalcExcessBlobGas(t *testing.T) {
var (
config = params.MainnetChainConfig
targetBlobs = targetBlobsPerBlock(config, *config.CancunTime)
config = presets.Mainnet
cancunTime, _ = config.Activation(forks.Cancun)
targetBlobs = targetBlobsPerBlock(config, cancunTime)
targetBlobGas = uint64(targetBlobs) * params.BlobTxBlobGasPerBlob
)
var tests = []struct {
@ -58,10 +61,11 @@ func TestCalcExcessBlobGas(t *testing.T) {
for i, tt := range tests {
blobGasUsed := uint64(tt.blobs) * params.BlobTxBlobGasPerBlob
header := &types.Header{
Number: big.NewInt(1),
ExcessBlobGas: &tt.excess,
BlobGasUsed: &blobGasUsed,
}
result := CalcExcessBlobGas(config, header, *config.CancunTime)
result := CalcExcessBlobGas(config, header, cancunTime)
if result != tt.want {
t.Errorf("test %d: excess blob gas mismatch: have %v, want %v", i, result, tt.want)
}
@ -69,8 +73,6 @@ func TestCalcExcessBlobGas(t *testing.T) {
}
func TestCalcBlobFee(t *testing.T) {
zero := uint64(0)
tests := []struct {
excessBlobGas uint64
blobfee int64
@ -81,7 +83,15 @@ func TestCalcBlobFee(t *testing.T) {
{10 * 1024 * 1024, 23},
}
for i, tt := range tests {
config := &params.ChainConfig{LondonBlock: big.NewInt(0), CancunTime: &zero, BlobScheduleConfig: params.DefaultBlobSchedule}
config := params.NewConfig2(
params.Activations{
forks.London: 0,
forks.Cancun: 0,
},
params.BlobSchedule.V(map[forks.Fork]params.BlobConfig{
forks.Cancun: *params.DefaultCancunBlobConfig,
}),
)
header := &types.Header{ExcessBlobGas: &tt.excessBlobGas}
have := CalcBlobFee(config, header)
if have.Int64() != tt.blobfee {
@ -130,13 +140,15 @@ func TestFakeExponential(t *testing.T) {
func TestCalcExcessBlobGasEIP7918(t *testing.T) {
var (
cfg = params.MergedTestChainConfig
targetBlobs = targetBlobsPerBlock(cfg, *cfg.CancunTime)
cfg = presets.MergedTestChainConfig
cancunTime, _ = cfg.Activation(forks.Cancun)
targetBlobs = targetBlobsPerBlock(cfg, cancunTime)
blobGasTarget = uint64(targetBlobs) * params.BlobTxBlobGasPerBlob
)
makeHeader := func(parentExcess, parentBaseFee uint64, blobsUsed int) *types.Header {
blobGasUsed := uint64(blobsUsed) * params.BlobTxBlobGasPerBlob
return &types.Header{
Number: big.NewInt(1),
BaseFee: big.NewInt(int64(parentBaseFee)),
ExcessBlobGas: &parentExcess,
BlobGasUsed: &blobGasUsed,
@ -160,7 +172,7 @@ func TestCalcExcessBlobGasEIP7918(t *testing.T) {
},
}
for _, tc := range tests {
got := CalcExcessBlobGas(cfg, tc.header, *cfg.CancunTime)
got := CalcExcessBlobGas(cfg, tc.header, cancunTime)
if got != tc.wantExcessGas {
t.Fatalf("%s: excess-blob-gas mismatch – have %d, want %d",
tc.name, got, tc.wantExcessGas)

2
core/rawdb/accessors_chain.go
View file

@ -601,7 +601,7 @@ func ReadRawReceipts(db ethdb.Reader, hash common.Hash, number uint64) types.Rec
// The current implementation populates these metadata fields by reading the receipts'
// corresponding block body, so if the block body is not found it will return nil even
// if the receipt itself is stored.
func ReadReceipts(db ethdb.Reader, hash common.Hash, number uint64, time uint64, config *params.ChainConfig) types.Receipts {
func ReadReceipts(db ethdb.Reader, hash common.Hash, number uint64, time uint64, config *params.Config2) types.Receipts {
// We're deriving many fields from the block body, retrieve beside the receipt
receipts := ReadRawReceipts(db, hash, number)
if receipts == nil {

14
core/rawdb/accessors_chain_test.go
View file

@ -29,7 +29,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/presets"
"github.com/ethereum/go-ethereum/rlp"
"golang.org/x/crypto/sha3"
)
@ -356,7 +356,7 @@ func TestBlockReceiptStorage(t *testing.T) {
// Check that no receipt entries are in a pristine database
hash := common.BytesToHash([]byte{0x03, 0x14})
if rs := ReadReceipts(db, hash, 0, 0, params.TestChainConfig); len(rs) != 0 {
if rs := ReadReceipts(db, hash, 0, 0, presets.TestChainConfig); len(rs) != 0 {
t.Fatalf("non existent receipts returned: %v", rs)
}
// Insert the body that corresponds to the receipts
@ -364,7 +364,7 @@ func TestBlockReceiptStorage(t *testing.T) {
// Insert the receipt slice into the database and check presence
WriteReceipts(db, hash, 0, receipts)
if rs := ReadReceipts(db, hash, 0, 0, params.TestChainConfig); len(rs) == 0 {
if rs := ReadReceipts(db, hash, 0, 0, presets.TestChainConfig); len(rs) == 0 {
t.Fatal("no receipts returned")
} else {
if err := checkReceiptsRLP(rs, receipts); err != nil {
@ -373,7 +373,7 @@ func TestBlockReceiptStorage(t *testing.T) {
}
// Delete the body and ensure that the receipts are no longer returned (metadata can't be recomputed)
DeleteBody(db, hash, 0)
if rs := ReadReceipts(db, hash, 0, 0, params.TestChainConfig); rs != nil {
if rs := ReadReceipts(db, hash, 0, 0, presets.TestChainConfig); rs != nil {
t.Fatalf("receipts returned when body was deleted: %v", rs)
}
// Ensure that receipts without metadata can be returned without the block body too
@ -388,7 +388,7 @@ func TestBlockReceiptStorage(t *testing.T) {
WriteBody(db, hash, 0, body)
DeleteReceipts(db, hash, 0)
if rs := ReadReceipts(db, hash, 0, 0, params.TestChainConfig); len(rs) != 0 {
if rs := ReadReceipts(db, hash, 0, 0, presets.TestChainConfig); len(rs) != 0 {
t.Fatalf("deleted receipts returned: %v", rs)
}
}
@ -751,7 +751,7 @@ func TestReadLogs(t *testing.T) {
hash := common.BytesToHash([]byte{0x03, 0x14})
// Check that no receipt entries are in a pristine database
if rs := ReadReceipts(db, hash, 0, 0, params.TestChainConfig); len(rs) != 0 {
if rs := ReadReceipts(db, hash, 0, 0, presets.TestChainConfig); len(rs) != 0 {
t.Fatalf("non existent receipts returned: %v", rs)
}
// Insert the body that corresponds to the receipts
@ -842,7 +842,7 @@ func TestDeriveLogFields(t *testing.T) {
// Derive log metadata fields
number := big.NewInt(1)
hash := common.BytesToHash([]byte{0x03, 0x14})
types.Receipts(receipts).DeriveFields(params.TestChainConfig, hash, number.Uint64(), 12, big.NewInt(0), big.NewInt(0), txs)
types.Receipts(receipts).DeriveFields(presets.TestChainConfig, hash, number.Uint64(), 12, big.NewInt(0), big.NewInt(0), txs)
// Iterate over all the computed fields and check that they're correct
logIndex := uint(0)

2
core/rawdb/accessors_indexes.go
View file

@ -202,7 +202,7 @@ func ReadCanonicalTransaction(db ethdb.Reader, hash common.Hash) (*types.Transac
// ReadCanonicalReceipt retrieves a specific transaction receipt from the database,
// along with its added positional metadata. Notably, only the receipt in the canonical
// chain is visible.
func ReadCanonicalReceipt(db ethdb.Reader, hash common.Hash, config *params.ChainConfig) (*types.Receipt, common.Hash, uint64, uint64) {
func ReadCanonicalReceipt(db ethdb.Reader, hash common.Hash, config *params.Config2) (*types.Receipt, common.Hash, uint64, uint64) {
// Retrieve the context of the receipt based on the transaction hash
blockNumber := ReadTxLookupEntry(db, hash)
if blockNumber == nil {

3
core/types/block_test.go
View file

@ -29,6 +29,7 @@ import (
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/internal/blocktest"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/presets"
"github.com/ethereum/go-ethereum/rlp"
"github.com/holiman/uint256"
)
@ -278,7 +279,7 @@ func makeBenchBlock() *Block {
key, _ = crypto.GenerateKey()
txs = make([]*Transaction, 70)
receipts = make([]*Receipt, len(txs))
signer = LatestSigner(params.TestChainConfig)
signer = LatestSigner(presets.TestChainConfig)
uncles = make([]*Header, 3)
)
header := &Header{

2
core/types/receipt.go
View file

@ -379,7 +379,7 @@ func (rs Receipts) EncodeIndex(i int, w *bytes.Buffer) {
// DeriveFields fills the receipts with their computed fields based on consensus
// data and contextual infos like containing block and transactions.
func (rs Receipts) DeriveFields(config *params.ChainConfig, blockHash common.Hash, blockNumber uint64, blockTime uint64, baseFee *big.Int, blobGasPrice *big.Int, txs []*Transaction) error {
func (rs Receipts) DeriveFields(config *params.Config2, blockHash common.Hash, blockNumber uint64, blockTime uint64, baseFee *big.Int, blobGasPrice *big.Int, txs []*Transaction) error {
signer := MakeSigner(config, new(big.Int).SetUint64(blockNumber), blockTime)
logIndex := uint(0)

4
core/types/receipt_test.go
View file

@ -27,6 +27,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/presets"
"github.com/ethereum/go-ethereum/rlp"
"github.com/holiman/uint256"
"github.com/kylelemons/godebug/diff"
@ -330,7 +331,8 @@ func TestDeriveFields(t *testing.T) {
blobGasPrice := big.NewInt(920)
receipts := getTestReceipts()
derivedReceipts := clearComputedFieldsOnReceipts(receipts)
err := Receipts(derivedReceipts).DeriveFields(params.TestChainConfig, blockHash, blockNumber.Uint64(), blockTime, basefee, blobGasPrice, txs)
config := presets.AllEthashProtocolChanges
err := Receipts(derivedReceipts).DeriveFields(config, blockHash, blockNumber.Uint64(), blockTime, basefee, blobGasPrice, txs)
if err != nil {
t.Fatalf("DeriveFields(...) = %v, want <nil>", err)
}

65
core/types/transaction_signing.go
View file

@ -39,20 +39,23 @@ type sigCache struct {
}
// MakeSigner returns a Signer based on the given chain config and block number.
func MakeSigner(config *params.ChainConfig, blockNumber *big.Int, blockTime uint64) Signer {
func MakeSigner(config *params.Config2, blockNumber *big.Int, blockTime uint64) Signer {
number := blockNumber.Uint64()
chainID := params.ChainID.Get(config)
var signer Signer
switch {
case config.IsPrague(blockNumber, blockTime):
signer = NewPragueSigner(config.ChainID)
case config.IsCancun(blockNumber, blockTime):
signer = NewCancunSigner(config.ChainID)
case config.IsLondon(blockNumber):
signer = NewLondonSigner(config.ChainID)
case config.IsBerlin(blockNumber):
signer = NewEIP2930Signer(config.ChainID)
case config.IsEIP155(blockNumber):
signer = NewEIP155Signer(config.ChainID)
case config.IsHomestead(blockNumber):
case config.Active(forks.Prague, number, blockTime):
signer = NewPragueSigner(chainID)
case config.Active(forks.Cancun, number, blockTime):
signer = NewCancunSigner(chainID)
case config.Active(forks.London, number, blockTime):
signer = NewLondonSigner(chainID)
case config.Active(forks.Berlin, number, blockTime):
signer = NewEIP2930Signer(chainID)
case config.Active(forks.SpuriousDragon, number, blockTime):
signer = NewEIP155Signer(chainID)
case config.Active(forks.Homestead, number, blockTime):
signer = HomesteadSigner{}
default:
signer = FrontierSigner{}
@ -67,20 +70,22 @@ func MakeSigner(config *params.ChainConfig, blockNumber *big.Int, blockTime uint
//
// Use this in transaction-handling code where the current block number is unknown. If you
// have the current block number available, use MakeSigner instead.
func LatestSigner(config *params.ChainConfig) Signer {
func LatestSigner(config *params.Config2) Signer {
chainID := params.ChainID.Get(config)
var signer Signer
if config.ChainID != nil {
if chainID != nil {
switch {
case config.PragueTime != nil:
signer = NewPragueSigner(config.ChainID)
case config.CancunTime != nil:
signer = NewCancunSigner(config.ChainID)
case config.LondonBlock != nil:
signer = NewLondonSigner(config.ChainID)
case config.BerlinBlock != nil:
signer = NewEIP2930Signer(config.ChainID)
case config.EIP155Block != nil:
signer = NewEIP155Signer(config.ChainID)
case config.Scheduled(forks.Prague):
signer = NewPragueSigner(chainID)
case config.Scheduled(forks.Cancun):
signer = NewCancunSigner(chainID)
case config.Scheduled(forks.London):
signer = NewLondonSigner(chainID)
case config.Scheduled(forks.Berlin):
signer = NewEIP2930Signer(chainID)
case config.Scheduled(forks.SpuriousDragon):
signer = NewEIP155Signer(chainID)
default:
signer = HomesteadSigner{}
}
@ -198,25 +203,25 @@ func newModernSigner(chainID *big.Int, fork forks.Fork) Signer {
}
// configure legacy signer
switch {
case fork >= forks.SpuriousDragon:
case fork.After(forks.SpuriousDragon):
s.legacy = NewEIP155Signer(chainID)
case fork >= forks.Homestead:
case fork.After(forks.Homestead):
s.legacy = HomesteadSigner{}
default:
s.legacy = FrontierSigner{}
}
s.txtypes[LegacyTxType] = struct{}{}
// configure tx types
if fork >= forks.Berlin {
if fork.After(forks.Berlin) {
s.txtypes[AccessListTxType] = struct{}{}
}
if fork >= forks.London {
if fork.After(forks.London) {
s.txtypes[DynamicFeeTxType] = struct{}{}
}
if fork >= forks.Cancun {
if fork.After(forks.Cancun) {
s.txtypes[BlobTxType] = struct{}{}
}
if fork >= forks.Prague {
if fork.After(forks.Prague) {
s.txtypes[SetCodeTxType] = struct{}{}
}
return s

6
core/types/transaction_test.go
View file

@ -29,7 +29,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/presets"
"github.com/ethereum/go-ethereum/rlp"
)
@ -596,7 +596,7 @@ func BenchmarkHash(b *testing.B) {
}
func BenchmarkEffectiveGasTip(b *testing.B) {
signer := LatestSigner(params.TestChainConfig)
signer := LatestSigner(presets.TestChainConfig)
key, _ := crypto.GenerateKey()
txdata := &DynamicFeeTx{
ChainID: big.NewInt(1),
@ -634,7 +634,7 @@ func BenchmarkEffectiveGasTip(b *testing.B) {
}
func TestEffectiveGasTipInto(t *testing.T) {
signer := LatestSigner(params.TestChainConfig)
signer := LatestSigner(presets.TestChainConfig)
key, _ := crypto.GenerateKey()
testCases := []struct {

19
core/vm/contracts.go
View file

@ -37,6 +37,7 @@ import (
"github.com/ethereum/go-ethereum/crypto/kzg4844"
"github.com/ethereum/go-ethereum/crypto/secp256r1"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"golang.org/x/crypto/ripemd160"
)
@ -206,21 +207,21 @@ func init() {
}
}
func activePrecompiledContracts(rules params.Rules) PrecompiledContracts {
func activePrecompiledContracts(rules params.Rules2) PrecompiledContracts {
switch {
case rules.IsVerkle:
case rules.Active(forks.Verkle):
return PrecompiledContractsVerkle
case rules.IsOsaka:
case rules.Active(forks.Osaka):
return PrecompiledContractsOsaka
case rules.IsPrague:
case rules.Active(forks.Prague):
return PrecompiledContractsPrague
case rules.IsCancun:
case rules.Active(forks.Cancun):
return PrecompiledContractsCancun
case rules.IsBerlin:
case rules.Active(forks.Berlin):
return PrecompiledContractsBerlin
case rules.IsIstanbul:
case rules.Active(forks.Istanbul):
return PrecompiledContractsIstanbul
case rules.IsByzantium:
case rules.Active(forks.Byzantium):
return PrecompiledContractsByzantium
default:
return PrecompiledContractsHomestead
@ -228,7 +229,7 @@ func activePrecompiledContracts(rules params.Rules) PrecompiledContracts {
}
// ActivePrecompiledContracts returns a copy of precompiled contracts enabled with the current configuration.
func ActivePrecompiledContracts(rules params.Rules) PrecompiledContracts {
func ActivePrecompiledContracts(rules params.Rules2) PrecompiledContracts {
return maps.Clone(activePrecompiledContracts(rules))
}

2
core/vm/eips.go
View file

@ -109,7 +109,7 @@ func enable1344(jt *JumpTable) {
// opChainID implements CHAINID opcode
func opChainID(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
chainId, _ := uint256.FromBig(interpreter.evm.chainConfig.ChainID)
chainId, _ := uint256.FromBig(params.ChainID.Get(interpreter.evm.chainConfig))
scope.Stack.push(chainId)
return nil, nil
}

44
core/vm/evm.go
View file

@ -27,6 +27,7 @@ import (
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/holiman/uint256"
)
@ -99,10 +100,10 @@ type EVM struct {
depth int
// chainConfig contains information about the current chain
chainConfig *params.ChainConfig
chainConfig *params.Config2
// chain rules contains the chain rules for the current epoch
chainRules params.Rules
chainRules params.Rules2
// virtual machine configuration options used to initialise the evm
Config Config
@ -130,13 +131,18 @@ type EVM struct {
// database and several configs. It meant to be used throughout the entire
// state transition of a block, with the transaction context switched as
// needed by calling evm.SetTxContext.
func NewEVM(blockCtx BlockContext, statedb StateDB, chainConfig *params.ChainConfig, config Config) *EVM {
func NewEVM(blockCtx BlockContext, statedb StateDB, chainConfig *params.Config2, config Config) *EVM {
blocknum := uint64(0)
if blockCtx.BlockNumber != nil {
blocknum = blockCtx.BlockNumber.Uint64()
}
evm := &EVM{
Context: blockCtx,
StateDB: statedb,
Config: config,
chainConfig: chainConfig,
chainRules: chainConfig.Rules(blockCtx.BlockNumber, blockCtx.Random != nil, blockCtx.Time),
chainRules: chainConfig.Rules(blocknum, blockCtx.Time),
jumpDests: newMapJumpDests(),
}
evm.precompiles = activePrecompiledContracts(evm.chainRules)
@ -159,7 +165,7 @@ func (evm *EVM) SetJumpDestCache(jumpDests JumpDestCache) {
// SetTxContext resets the EVM with a new transaction context.
// This is not threadsafe and should only be done very cautiously.
func (evm *EVM) SetTxContext(txCtx TxContext) {
if evm.chainRules.IsEIP4762 {
if evm.chainRules.Active(forks.Verkle) {
txCtx.AccessEvents = state.NewAccessEvents(evm.StateDB.PointCache())
}
evm.TxContext = txCtx
@ -209,7 +215,7 @@ func (evm *EVM) Call(caller common.Address, addr common.Address, input []byte, g
p, isPrecompile := evm.precompile(addr)
if !evm.StateDB.Exist(addr) {
if !isPrecompile && evm.chainRules.IsEIP4762 && !isSystemCall(caller) {
if !isPrecompile && evm.chainRules.Active(forks.Verkle) && !isSystemCall(caller) {
// Add proof of absence to witness
// At this point, the read costs have already been charged, either because this
// is a direct tx call, in which case it's covered by the intrinsic gas, or because
@ -225,7 +231,7 @@ func (evm *EVM) Call(caller common.Address, addr common.Address, input []byte, g
gas -= wgas
}
if !isPrecompile && evm.chainRules.IsEIP158 && value.IsZero() {
if !isPrecompile && evm.chainRules.Active(forks.SpuriousDragon) && value.IsZero() {
// Calling a non-existing account, don't do anything.
return nil, gas, nil
}
@ -442,7 +448,7 @@ func (evm *EVM) create(caller common.Address, code []byte, gas uint64, value *ui
evm.StateDB.SetNonce(caller, nonce+1, tracing.NonceChangeContractCreator)
// Charge the contract creation init gas in verkle mode
if evm.chainRules.IsEIP4762 {
if evm.chainRules.Active(forks.Verkle) {
statelessGas := evm.AccessEvents.ContractCreatePreCheckGas(address, gas)
if statelessGas > gas {
return nil, common.Address{}, 0, ErrOutOfGas
@ -455,7 +461,7 @@ func (evm *EVM) create(caller common.Address, code []byte, gas uint64, value *ui
// We add this to the access list _before_ taking a snapshot. Even if the
// creation fails, the access-list change should not be rolled back.
if evm.chainRules.IsEIP2929 {
if evm.chainRules.Active(forks.Berlin) && !evm.chainRules.Active(forks.Verkle) {
evm.StateDB.AddAddressToAccessList(address)
}
// Ensure there's no existing contract already at the designated address.
@ -486,11 +492,11 @@ func (evm *EVM) create(caller common.Address, code []byte, gas uint64, value *ui
// acts inside that account.
evm.StateDB.CreateContract(address)
if evm.chainRules.IsEIP158 {
if evm.chainRules.Active(forks.SpuriousDragon) {
evm.StateDB.SetNonce(address, 1, tracing.NonceChangeNewContract)
}
// Charge the contract creation init gas in verkle mode
if evm.chainRules.IsEIP4762 {
if evm.chainRules.Active(forks.Verkle) {
consumed, wanted := evm.AccessEvents.ContractCreateInitGas(address, gas)
if consumed < wanted {
return nil, common.Address{}, 0, ErrOutOfGas
@ -512,7 +518,7 @@ func (evm *EVM) create(caller common.Address, code []byte, gas uint64, value *ui
contract.IsDeployment = true
ret, err = evm.initNewContract(contract, address)
if err != nil && (evm.chainRules.IsHomestead || err != ErrCodeStoreOutOfGas) {
if err != nil && (evm.chainRules.Active(forks.Homestead) || err != ErrCodeStoreOutOfGas) {
evm.StateDB.RevertToSnapshot(snapshot)
if err != ErrExecutionReverted {
contract.UseGas(contract.Gas, evm.Config.Tracer, tracing.GasChangeCallFailedExecution)
@ -530,16 +536,16 @@ func (evm *EVM) initNewContract(contract *Contract, address common.Address) ([]b
}
// Check whether the max code size has been exceeded, assign err if the case.
if evm.chainRules.IsEIP158 && len(ret) > params.MaxCodeSize {
if evm.chainRules.Active(forks.SpuriousDragon) && len(ret) > params.MaxCodeSize {
return ret, ErrMaxCodeSizeExceeded
}
// Reject code starting with 0xEF if EIP-3541 is enabled.
if len(ret) >= 1 && ret[0] == 0xEF && evm.chainRules.IsLondon {
if len(ret) >= 1 && ret[0] == 0xEF && evm.chainRules.Active(forks.London) {
return ret, ErrInvalidCode
}
if !evm.chainRules.IsEIP4762 {
if !evm.chainRules.Active(forks.Verkle) {
createDataGas := uint64(len(ret)) * params.CreateDataGas
if !contract.UseGas(createDataGas, evm.Config.Tracer, tracing.GasChangeCallCodeStorage) {
return ret, ErrCodeStoreOutOfGas
@ -576,7 +582,7 @@ func (evm *EVM) Create2(caller common.Address, code []byte, gas uint64, endowmen
// Prague, it can also resolve code pointed to by a delegation designator.
func (evm *EVM) resolveCode(addr common.Address) []byte {
code := evm.StateDB.GetCode(addr)
if !evm.chainRules.IsPrague {
if !evm.chainRules.Active(forks.Prague) {
return code
}
if target, ok := types.ParseDelegation(code); ok {
@ -591,7 +597,7 @@ func (evm *EVM) resolveCode(addr common.Address) []byte {
// delegation designator. Although this is not accessible in the EVM it is used
// internally to associate jumpdest analysis to code.
func (evm *EVM) resolveCodeHash(addr common.Address) common.Hash {
if evm.chainRules.IsPrague {
if evm.chainRules.Active(forks.Prague) {
code := evm.StateDB.GetCode(addr)
if target, ok := types.ParseDelegation(code); ok {
// Note we only follow one level of delegation.
@ -602,7 +608,7 @@ func (evm *EVM) resolveCodeHash(addr common.Address) common.Hash {
}
// ChainConfig returns the environment's chain configuration
func (evm *EVM) ChainConfig() *params.ChainConfig { return evm.chainConfig }
func (evm *EVM) ChainConfig() *params.Config2 { return evm.chainConfig }
func (evm *EVM) captureBegin(depth int, typ OpCode, from common.Address, to common.Address, input []byte, startGas uint64, value *big.Int) {
tracer := evm.Config.Tracer
@ -623,7 +629,7 @@ func (evm *EVM) captureEnd(depth int, startGas uint64, leftOverGas uint64, ret [
if err != nil {
reverted = true
}
if !evm.chainRules.IsHomestead && errors.Is(err, ErrCodeStoreOutOfGas) {
if !evm.chainRules.Active(forks.Homestead) && errors.Is(err, ErrCodeStoreOutOfGas) {
reverted = false
}
if tracer.OnExit != nil {

21
core/vm/gas_table.go
View file

@ -23,6 +23,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
)
// memoryGasCost calculates the quadratic gas for memory expansion. It does so
@ -104,7 +105,7 @@ func gasSStore(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySi
// The legacy gas metering only takes into consideration the current state
// Legacy rules should be applied if we are in Petersburg (removal of EIP-1283)
// OR Constantinople is not active
if evm.chainRules.IsPetersburg || !evm.chainRules.IsConstantinople {
if evm.chainRules.Active(forks.Petersburg) || !evm.chainRules.Active(forks.Constantinople) {
// This checks for 3 scenarios and calculates gas accordingly:
//
// 1. From a zero-value address to a non-zero value (NEW VALUE)
@ -374,14 +375,14 @@ func gasCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize
transfersValue = !stack.Back(2).IsZero()
address = common.Address(stack.Back(1).Bytes20())
)
if evm.chainRules.IsEIP158 {
if evm.chainRules.Active(forks.SpuriousDragon) {
if transfersValue && evm.StateDB.Empty(address) {
gas += params.CallNewAccountGas
}
} else if !evm.StateDB.Exist(address) {
gas += params.CallNewAccountGas
}
if transfersValue && !evm.chainRules.IsEIP4762 {
if transfersValue && !evm.chainRules.Active(forks.Verkle) {
gas += params.CallValueTransferGas
}
memoryGas, err := memoryGasCost(mem, memorySize)
@ -393,7 +394,7 @@ func gasCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize
return 0, ErrGasUintOverflow
}
evm.callGasTemp, err = callGas(evm.chainRules.IsEIP150, contract.Gas, gas, stack.Back(0))
evm.callGasTemp, err = callGas(evm.chainRules.Active(forks.TangerineWhistle), contract.Gas, gas, stack.Back(0))
if err != nil {
return 0, err
}
@ -413,13 +414,13 @@ func gasCallCode(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memory
gas uint64
overflow bool
)
if stack.Back(2).Sign() != 0 && !evm.chainRules.IsEIP4762 {
if stack.Back(2).Sign() != 0 && !evm.chainRules.Active(forks.Verkle) {
gas += params.CallValueTransferGas
}
if gas, overflow = math.SafeAdd(gas, memoryGas); overflow {
return 0, ErrGasUintOverflow
}
evm.callGasTemp, err = callGas(evm.chainRules.IsEIP150, contract.Gas, gas, stack.Back(0))
evm.callGasTemp, err = callGas(evm.chainRules.Active(forks.TangerineWhistle), contract.Gas, gas, stack.Back(0))
if err != nil {
return 0, err
}
@ -434,7 +435,7 @@ func gasDelegateCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, me
if err != nil {
return 0, err
}
evm.callGasTemp, err = callGas(evm.chainRules.IsEIP150, contract.Gas, gas, stack.Back(0))
evm.callGasTemp, err = callGas(evm.chainRules.Active(forks.TangerineWhistle), contract.Gas, gas, stack.Back(0))
if err != nil {
return 0, err
}
@ -450,7 +451,7 @@ func gasStaticCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memo
if err != nil {
return 0, err
}
evm.callGasTemp, err = callGas(evm.chainRules.IsEIP150, contract.Gas, gas, stack.Back(0))
evm.callGasTemp, err = callGas(evm.chainRules.Active(forks.TangerineWhistle), contract.Gas, gas, stack.Back(0))
if err != nil {
return 0, err
}
@ -464,11 +465,11 @@ func gasStaticCall(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memo
func gasSelfdestruct(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) {
var gas uint64
// EIP150 homestead gas reprice fork:
if evm.chainRules.IsEIP150 {
if evm.chainRules.Active(forks.TangerineWhistle) {
gas = params.SelfdestructGasEIP150
var address = common.Address(stack.Back(0).Bytes20())
if evm.chainRules.IsEIP158 {
if evm.chainRules.Active(forks.SpuriousDragon) {
// if empty and transfers value
if evm.StateDB.Empty(address) && evm.StateDB.GetBalance(contract.Address()).Sign() != 0 {
gas += params.CreateBySelfdestructGas

6
core/vm/gas_table_test.go
View file

@ -28,7 +28,7 @@ import (
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/presets"
"github.com/holiman/uint256"
)
@ -95,7 +95,7 @@ func TestEIP2200(t *testing.T) {
CanTransfer: func(StateDB, common.Address, *uint256.Int) bool { return true },
Transfer: func(StateDB, common.Address, common.Address, *uint256.Int) {},
}
evm := NewEVM(vmctx, statedb, params.AllEthashProtocolChanges, Config{ExtraEips: []int{2200}})
evm := NewEVM(vmctx, statedb, presets.AllEthashProtocolChanges, Config{ExtraEips: []int{2200}})
_, gas, err := evm.Call(common.Address{}, address, nil, tt.gaspool, new(uint256.Int))
if !errors.Is(err, tt.failure) {
@ -151,7 +151,7 @@ func TestCreateGas(t *testing.T) {
config.ExtraEips = []int{3860}
}
evm := NewEVM(vmctx, statedb, params.AllEthashProtocolChanges, config)
evm := NewEVM(vmctx, statedb, presets.AllEthashProtocolChanges, config)
var startGas = uint64(testGas)
ret, gas, err := evm.Call(common.Address{}, address, nil, startGas, new(uint256.Int))
if err != nil {

5
core/vm/instructions.go
View file

@ -23,6 +23,7 @@ import (
"github.com/ethereum/go-ethereum/core/tracing"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/holiman/uint256"
)
@ -663,7 +664,7 @@ func opCreate(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]b
input = scope.Memory.GetCopy(offset.Uint64(), size.Uint64())
gas = scope.Contract.Gas
)
if interpreter.evm.chainRules.IsEIP150 {
if interpreter.evm.chainRules.Active(forks.TangerineWhistle) {
gas -= gas / 64
}
@ -677,7 +678,7 @@ func opCreate(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]b
// homestead we must check for CodeStoreOutOfGasError (homestead only
// rule) and treat as an error, if the ruleset is frontier we must
// ignore this error and pretend the operation was successful.
if interpreter.evm.chainRules.IsHomestead && suberr == ErrCodeStoreOutOfGas {
if interpreter.evm.chainRules.Active(forks.Homestead) && suberr == ErrCodeStoreOutOfGas {
stackvalue.Clear()
} else if suberr != nil && suberr != ErrCodeStoreOutOfGas {
stackvalue.Clear()

26
core/vm/instructions_test.go
View file

@ -30,7 +30,7 @@ import (
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/presets"
"github.com/holiman/uint256"
)
@ -96,7 +96,7 @@ func init() {
func testTwoOperandOp(t *testing.T, tests []TwoOperandTestcase, opFn executionFunc, name string) {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
pc = uint64(0)
)
@ -194,7 +194,7 @@ func TestSAR(t *testing.T) {
func TestAddMod(t *testing.T) {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
pc = uint64(0)
)
@ -237,7 +237,7 @@ func TestWriteExpectedValues(t *testing.T) {
// getResult is a convenience function to generate the expected values
getResult := func(args []*twoOperandParams, opFn executionFunc) []TwoOperandTestcase {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
pc = uint64(0)
)
@ -281,7 +281,7 @@ func TestJsonTestcases(t *testing.T) {
func opBenchmark(bench *testing.B, op executionFunc, args ...string) {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
scope = &ScopeContext{nil, stack, nil}
)
@ -519,7 +519,7 @@ func BenchmarkOpIsZero(b *testing.B) {
func TestOpMstore(t *testing.T) {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
)
@ -542,7 +542,7 @@ func TestOpMstore(t *testing.T) {
func BenchmarkOpMstore(bench *testing.B) {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
)
@ -562,7 +562,7 @@ func BenchmarkOpMstore(bench *testing.B) {
func TestOpTstore(t *testing.T) {
var (
statedb, _ = state.New(types.EmptyRootHash, state.NewDatabaseForTesting())
evm = NewEVM(BlockContext{}, statedb, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, statedb, presets.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
caller = common.Address{}
@ -601,7 +601,7 @@ func TestOpTstore(t *testing.T) {
func BenchmarkOpKeccak256(bench *testing.B) {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
)
@ -703,7 +703,7 @@ func TestRandom(t *testing.T) {
{name: "hash(0x010203)", random: crypto.Keccak256Hash([]byte{0x01, 0x02, 0x03})},
} {
var (
evm = NewEVM(BlockContext{Random: &tt.random}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{Random: &tt.random}, nil, presets.TestChainConfig, Config{})
stack = newstack()
pc = uint64(0)
)
@ -743,7 +743,7 @@ func TestBlobHash(t *testing.T) {
{name: "out-of-bounds (nil)", idx: 25, expect: zero, hashes: nil},
} {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
pc = uint64(0)
)
@ -846,7 +846,7 @@ func TestOpMCopy(t *testing.T) {
},
} {
var (
evm = NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm = NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
stack = newstack()
pc = uint64(0)
)
@ -974,7 +974,7 @@ func TestPush(t *testing.T) {
}
func TestOpCLZ(t *testing.T) {
evm := NewEVM(BlockContext{}, nil, params.TestChainConfig, Config{})
evm := NewEVM(BlockContext{}, nil, presets.TestChainConfig, Config{})
tests := []struct {
inputHex string

31
core/vm/interpreter.go
View file

@ -24,6 +24,7 @@ import (
"github.com/ethereum/go-ethereum/core/tracing"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/holiman/uint256"
)
@ -106,34 +107,34 @@ func NewEVMInterpreter(evm *EVM) *EVMInterpreter {
// If jump table was not initialised we set the default one.
var table *JumpTable
switch {
case evm.chainRules.IsOsaka:
case evm.chainRules.Active(forks.Osaka):
table = &osakaInstructionSet
case evm.chainRules.IsVerkle:
case evm.chainRules.Active(forks.Verkle):
// TODO replace with proper instruction set when fork is specified
table = &verkleInstructionSet
case evm.chainRules.IsPrague:
case evm.chainRules.Active(forks.Prague):
table = &pragueInstructionSet
case evm.chainRules.IsCancun:
case evm.chainRules.Active(forks.Cancun):
table = &cancunInstructionSet
case evm.chainRules.IsShanghai:
case evm.chainRules.Active(forks.Shanghai):
table = &shanghaiInstructionSet
case evm.chainRules.IsMerge:
case evm.chainRules.Active(forks.Paris):
table = &mergeInstructionSet
case evm.chainRules.IsLondon:
case evm.chainRules.Active(forks.London):
table = &londonInstructionSet
case evm.chainRules.IsBerlin:
case evm.chainRules.Active(forks.Berlin):
table = &berlinInstructionSet
case evm.chainRules.IsIstanbul:
case evm.chainRules.Active(forks.Istanbul):
table = &istanbulInstructionSet
case evm.chainRules.IsConstantinople:
case evm.chainRules.Active(forks.Constantinople):
table = &constantinopleInstructionSet
case evm.chainRules.IsByzantium:
case evm.chainRules.Active(forks.Byzantium):
table = &byzantiumInstructionSet
case evm.chainRules.IsEIP158:
case evm.chainRules.Active(forks.SpuriousDragon):
table = &spuriousDragonInstructionSet
case evm.chainRules.IsEIP150:
case evm.chainRules.Active(forks.TangerineWhistle):
table = &tangerineWhistleInstructionSet
case evm.chainRules.IsHomestead:
case evm.chainRules.Active(forks.Homestead):
table = &homesteadInstructionSet
default:
table = &frontierInstructionSet
@ -237,7 +238,7 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
logged, pcCopy, gasCopy = false, pc, contract.Gas
}
if in.evm.chainRules.IsEIP4762 && !contract.IsDeployment && !contract.IsSystemCall {
if in.evm.chainRules.Active(forks.Verkle) && !contract.IsDeployment && !contract.IsSystemCall {
// if the PC ends up in a new "chunk" of verkleized code, charge the
// associated costs.
contractAddr := contract.Address()

5
core/vm/interpreter_test.go
View file

@ -26,6 +26,7 @@ import (
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/presets"
"github.com/holiman/uint256"
)
@ -48,7 +49,7 @@ func TestLoopInterrupt(t *testing.T) {
statedb.SetCode(address, common.Hex2Bytes(tt))
statedb.Finalise(true)
evm := NewEVM(vmctx, statedb, params.AllEthashProtocolChanges, Config{})
evm := NewEVM(vmctx, statedb, presets.AllEthashProtocolChanges, Config{})
errChannel := make(chan error)
timeout := make(chan bool)
@ -79,7 +80,7 @@ func TestLoopInterrupt(t *testing.T) {
func BenchmarkInterpreter(b *testing.B) {
var (
statedb, _ = state.New(types.EmptyRootHash, state.NewDatabaseForTesting())
evm = NewEVM(BlockContext{BlockNumber: big.NewInt(1), Time: 1, Random: &common.Hash{}}, statedb, params.MergedTestChainConfig, Config{})
evm = NewEVM(BlockContext{BlockNumber: big.NewInt(1), Time: 1, Random: &common.Hash{}}, statedb, presets.MergedTestChainConfig, Config{})
startGas uint64 = 100_000_000
value = uint256.NewInt(0)
stack = newstack()

73
params/chainparam.go Normal file
View file

@ -0,0 +1,73 @@
package params
import (
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/params/forks"
)
// ChainID
var ChainID = Define(T[*big.Int]{
Name: "chainId",
Optional: false,
Validate: validateChainID,
})
func validateChainID(v *big.Int, cfg *Config2) error {
if v.Sign() <= 0 {
return fmt.Errorf("invalid chainID value %v", v)
}
return nil
}
// DAOForkSupport is the chain parameter that configures the DAO fork.
// true=supports or false=opposes the fork.
// The default value is true.
var DAOForkSupport = Define(T[bool]{
Name: "daoForkSupport",
Optional: true,
Default: true,
})
// TerminalTotalDifficulty (TTD) is the total difficulty value where
var TerminalTotalDifficulty = Define(T[*big.Int]{
Name: "terminalTotalDifficulty",
Optional: true,
})
// DepositContractAddress configures the location of the deposit contract.
var DepositContractAddress = Define(T[common.Address]{
Name: "depositContractAddress",
Optional: true,
})
// This configures the EIP-4844 parameters across forks.
// There must be an entry for each fork
var BlobSchedule = Define(T[map[forks.Fork]BlobConfig]{
Name: "blobSchedule",
Optional: true,
Validate: validateBlobSchedule,
})
// validateBlobSchedule verifies that all forks after cancun explicitly define a blob
// schedule configuration.
func validateBlobSchedule(schedule map[forks.Fork]BlobConfig, cfg *Config2) error {
for f := range forks.All() {
if _, defined := schedule[f]; f.BlockBased() && defined {
return fmt.Errorf("contains fork %q with block-number based scheduling", f.ConfigName())
}
if cfg.Scheduled(f) && f.After(forks.Cancun) {
bcfg, defined := schedule[f]
if !defined {
return fmt.Errorf("missing entry for fork %q", f.ConfigName())
} else {
if err := bcfg.validate(); err != nil {
return fmt.Errorf("invalid blob config for fork %q: %v", f.ConfigName(), err)
}
}
}
}
return nil
}

424
params/config2.go Normal file
View file

@ -0,0 +1,424 @@
// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package params
import (
"bytes"
"cmp"
"encoding/json"
"fmt"
"maps"
"math/big"
"reflect"
"slices"
"strconv"
"strings"
"github.com/ethereum/go-ethereum/params/forks"
)
// Activations contains the block numbers/timestamps where hard forks activate.
type Activations map[forks.Fork]uint64
// Config2 represents the chain configuration.
type Config2 struct {
activation Activations
param map[int]any
}
func NewConfig2(activations Activations, param ...ParamValue) *Config2 {
cfg := &Config2{
activation: maps.Clone(activations),
param: make(map[int]any, len(param)),
}
for _, pv := range param {
cfg.param[pv.id] = pv.value
}
return cfg
}
// Active reports whether the given fork is active for a block number/time.
func (cfg *Config2) Active(f forks.Fork, block, timestamp uint64) bool {
if f == forks.Frontier {
return true
}
activation, ok := cfg.activation[f]
if f.BlockBased() {
return ok && block >= activation
}
return ok && timestamp >= activation
}
// ActiveAtBlock reports whether the given fork is active for a block number/time.
func (cfg *Config2) ActiveAtBlock(f forks.Fork, block *big.Int) bool {
if f == forks.Frontier {
return true
}
if !f.BlockBased() {
panic(fmt.Sprintf("fork %v has time-based scheduling", f))
}
activation, ok := cfg.activation[f]
return ok && block.Uint64() >= activation
}
// Activation returns the activation block/number of a fork.
func (cfg *Config2) Activation(f forks.Fork) (uint64, bool) {
a, ok := cfg.activation[f]
return a, ok
}
// Scheduled says whether the fork is scheduled at all.
func (cfg *Config2) Scheduled(f forks.Fork) bool {
_, ok := cfg.activation[f]
return ok
}
// SetActivations returns a new configuration with the given forks activated.
func (cfg *Config2) SetActivations(forks Activations) *Config2 {
newA := maps.Clone(cfg.activation)
maps.Copy(newA, forks)
return &Config2{activation: newA, param: cfg.param}
}
// SetParam returns a new configuration with the given parameter values set.
func (cfg *Config2) SetParam(param ...ParamValue) *Config2 {
cpy := &Config2{activation: cfg.activation, param: maps.Clone(cfg.param)}
for _, pv := range param {
cpy.param[pv.id] = pv.value
}
return cpy
}
// String encodes the config in a readable way.
func (cfg *Config2) String() string {
paramList := slices.Sorted(maps.Keys(cfg.param))
forkList := make([]forkActivation, 0, len(cfg.activation))
for f, a := range cfg.activation {
forkList = append(forkList, forkActivation{f, a})
}
slices.SortFunc(forkList, forkActivation.compare)
var out strings.Builder
var sp bool
writeSp := func() {
if sp {
out.WriteString(" ")
}
sp = true
}
out.WriteRune('[')
for _, fa := range forkList {
writeSp()
out.WriteString(fa.fork.ConfigName())
out.WriteString(":")
out.WriteString(strconv.FormatUint(fa.activation, 10))
}
for _, p := range paramList {
writeSp()
out.WriteString(paramRegistry[p].name)
out.WriteString(":")
fmt.Fprintf(&out, "%v", cfg.param[p])
}
out.WriteRune(']')
return out.String()
}
// MarshalJSON encodes the config as JSON.
func (cfg *Config2) MarshalJSON() ([]byte, error) {
m := make(map[string]any)
// params
for id, value := range cfg.param {
info, ok := paramRegistry[id]
if !ok {
panic(fmt.Sprintf("unknown chain parameter id %v", id))
}
m[info.name] = value
}
// forks
for f, act := range cfg.activation {
var name string
if f.BlockBased() {
name = fmt.Sprintf("%sBlock", f.ConfigName())
} else {
name = fmt.Sprintf("%sTime", f.ConfigName())
}
m[name] = act
}
return json.Marshal(m)
}
// MarshalJSON encodes the config as JSON.
func (cfg *Config2) UnmarshalJSON(input []byte) error {
dec := json.NewDecoder(bytes.NewReader(input))
tok, err := dec.Token()
if err != nil {
return err
}
if tok != json.Delim('{') {
return fmt.Errorf("expected JSON object for chain configuration")
}
// Now we're in the object.
newcfg := Config2{
activation: make(Activations),
param: make(map[int]any),
}
for {
tok, err = dec.Token()
if tok == json.Delim('}') {
break
} else if key, ok := tok.(string); ok {
if strings.HasSuffix(key, "Block") || strings.HasSuffix(key, "Time") {
err = newcfg.decodeActivation(key, dec)
} else {
err = newcfg.decodeParameter(key, dec)
}
}
if err != nil {
return err
}
}
*cfg = newcfg
return nil
}
func (cfg *Config2) decodeActivation(key string, dec *json.Decoder) error {
var num uint64
if err := dec.Decode(&num); err != nil {
return err
}
var f forks.Fork
name, ok := strings.CutSuffix(key, "Block")
if ok {
f, ok = forks.ForkByConfigName(name)
if !ok || !f.BlockBased() {
return fmt.Errorf("unknown block-based fork %q", name)
}
if f == forks.Frontier {
return fmt.Errorf("frontier fork cannot be scheduled")
}
} else if name, ok = strings.CutSuffix(key, "Time"); ok {
f, ok = forks.ForkByConfigName(name)
if !ok || f.BlockBased() {
return fmt.Errorf("unknown time-based fork %q", name)
}
}
cfg.activation[f] = num
return nil
}
func (cfg *Config2) decodeParameter(key string, dec *json.Decoder) error {
id, ok := paramRegistryByName[key]
if !ok {
return fmt.Errorf("unknown chain parameter %q", key)
}
v := paramRegistry[id].new()
if err := dec.Decode(v); err != nil {
return err
}
cfg.param[id] = reflect.ValueOf(v).Elem().Interface()
return nil
}
// Validate checks the configuration to ensure forks are scheduled in order,
// and required settings are present.
func (cfg *Config2) Validate() error {
for f := range forks.All() {
act := "timestamp"
if f.BlockBased() {
act = "block"
}
for dep := range f.DirectDependencies() {
if dep == forks.Frontier {
continue
}
switch {
// Non-optional forks must all be present in the chain config up to the last defined fork.
case !cfg.Scheduled(dep) && cfg.Scheduled(f):
return fmt.Errorf("unsupported fork ordering: %v not enabled, but %v enabled at %s %v", dep, f, act, cfg.activation[f])
// Fork (whether defined by block or timestamp) must follow the fork definition sequence.
case cfg.Scheduled(dep) && cfg.Scheduled(f):
// Timestamp based forks can follow block based ones, but not the other way around.
if !dep.BlockBased() && f.BlockBased() {
return fmt.Errorf("unsupported fork ordering: %v used timestamp ordering, but %v reverted to block ordering", dep, f)
}
if dep.BlockBased() == f.BlockBased() && cfg.activation[dep] > cfg.activation[f] {
return fmt.Errorf("unsupported fork ordering: %v enabled at %s %v, but %v enabled at %s %v", dep, act, cfg.activation[dep], f, act, cfg.activation[f])
}
}
}
}
// Check parameters.
for id, info := range paramRegistry {
v, isSet := cfg.param[id]
if !isSet {
if !info.optional {
return fmt.Errorf("required chain parameter %q is not set", info.name)
}
v = info.defaultValue
}
if err := info.validate(v, cfg); err != nil {
return fmt.Errorf("invalid %s: %w", info.name, err)
}
}
return nil
}
// CheckCompatible validates chain configuration changes.
// This called before applying changes to the 'stored configuration', the config
// which is held in the database. The given block number and time represent the current head
// of the chain in that database.
//
// An error is returned when the new configuration attempts to schedule a fork below the
// current chain head. The error contains enough information to rewind the chain to a
// point where the new config can be applied safely.
func (cfg *Config2) CheckCompatible(newcfg *Config2, blocknum uint64, time uint64) *ConfigCompatError {
// Gather forks which are active in either config, and sort them by activation.
var forkList []forkActivation
for f := range forks.All() {
a, ok := minActivation(f, cfg, newcfg)
if ok {
forkList = append(forkList, forkActivation{f, a})
}
}
slices.SortFunc(forkList, forkActivation.compare)
// Iterate checkCompatible to find the lowest conflict.
var lasterr *ConfigCompatError
bhead, btime := blocknum, time
for {
err := cfg.checkCompatible(newcfg, forkList, bhead, btime)
if err == nil || (lasterr != nil && err.RewindToBlock == lasterr.RewindToBlock && err.RewindToTime == lasterr.RewindToTime) {
break
}
lasterr = err
if err.RewindToTime > 0 {
btime = err.RewindToTime
} else {
bhead = err.RewindToBlock
}
}
return lasterr
}
// checkCompatible checks config compatibility at a specific block height.
func (cfg *Config2) checkCompatible(newcfg *Config2, forkList []forkActivation, num uint64, time uint64) *ConfigCompatError {
incompatible := func(f forks.Fork) bool {
return (cfg.Active(f, num, time) || newcfg.Active(f, num, time)) && !activationEqual(f, cfg, newcfg)
}
for _, fa := range forkList {
f := fa.fork
if incompatible(f) {
if f.BlockBased() {
return newBlockCompatError2(f.ConfigName()+"Block", f, cfg, newcfg)
}
return newTimestampCompatError2(f.ConfigName()+"Time", f, cfg, newcfg)
}
}
// Specialty checks.
if cfg.Active(forks.DAO, num, time) && DAOForkSupport.Get(cfg) != DAOForkSupport.Get(newcfg) {
return newBlockCompatError2("DAO fork support flag", forks.DAO, cfg, newcfg)
}
if cfg.Active(forks.TangerineWhistle, num, time) && !configBlockEqual(ChainID.Get(cfg), ChainID.Get(newcfg)) {
return newBlockCompatError2("EIP158 chain ID", forks.TangerineWhistle, cfg, newcfg)
}
// TODO: Something should be checked here for TTD and blobSchedule.
return nil
}
func newBlockCompatError2(what string, f forks.Fork, storedcfg, newcfg *Config2) *ConfigCompatError {
err := &ConfigCompatError{What: what}
if storedcfg.Scheduled(f) {
err.StoredBlock = new(big.Int).SetUint64(storedcfg.activation[f])
}
if newcfg.Scheduled(f) {
err.NewBlock = new(big.Int).SetUint64(newcfg.activation[f])
}
// Need to rewind to one block before the earliest possible activation.
rew, _ := minActivation(f, storedcfg, newcfg)
if rew > 0 {
err.RewindToBlock = rew - 1
}
return err
}
func newTimestampCompatError2(what string, f forks.Fork, storedcfg, newcfg *Config2) *ConfigCompatError {
err := &ConfigCompatError{What: what}
if storedcfg.Scheduled(f) {
t := storedcfg.activation[f]
err.StoredTime = &t
}
if newcfg.Scheduled(f) {
t := newcfg.activation[f]
err.NewTime = &t
}
// Need to rewind to before the earliest possible activation.
rew, _ := minActivation(f, storedcfg, newcfg)
if rew > 0 {
err.RewindToTime = rew - 1
}
return err
}
// minActivation the earliest possible activation block/time for the given fork
// across two configurations.
func minActivation(f forks.Fork, cfg1, cfg2 *Config2) (act uint64, scheduled bool) {
switch {
case !cfg1.Scheduled(f):
act, scheduled = cfg2.activation[f]
case !cfg2.Scheduled(f):
act, scheduled = cfg1.activation[f]
default:
act = min(cfg1.activation[f], cfg2.activation[f])
scheduled = true
}
return
}
// activationEqual checks whether a fork has the same activation two configurations.
// Note this also returns true when it isn't scheduled at all.
func activationEqual(f forks.Fork, cfg1, cfg2 *Config2) bool {
return cfg1.Scheduled(f) == cfg2.Scheduled(f) && cfg1.activation[f] == cfg2.activation[f]
}
type forkActivation struct {
fork forks.Fork
activation uint64
}
func (fa forkActivation) compare(other forkActivation) int {
// Here we assume block-based forks activate before time-based ones. For forks with
// equal activation, the ordering is based on fork name to ensure a consistent result.
switch {
case fa.fork.BlockBased() && !other.fork.BlockBased():
return -1
case !fa.fork.BlockBased() && other.fork.BlockBased():
return 1
case fa.activation == other.activation:
return strings.Compare(fa.fork.String(), other.fork.String())
default:
return cmp.Compare(fa.activation, other.activation)
}
}

169
params/config2_test.go Normal file
View file

@ -0,0 +1,169 @@
// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package params_test
import (
"math/big"
"path/filepath"
"reflect"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
"github.com/ethereum/go-ethereum/params/presets"
)
func TestConfigValidateErrors(t *testing.T) {
files, err := filepath.Glob("testdata/invalid-*.json")
if err != nil {
t.Fatal(err)
}
type test struct {
Config params.Config2 `json:"config"`
Error string `json:"error"`
}
for _, f := range files {
name := filepath.Base(f)
t.Run(name, func(t *testing.T) {
var test test
if err := common.LoadJSON(f, &test); err != nil {
t.Fatal(err)
}
err := test.Config.Validate()
if err == nil {
t.Fatal("expected validation error, got none")
}
if err.Error() != test.Error {
t.Fatal("wrong error:\n got:", err.Error(), "want:", test.Error)
}
})
}
}
func TestCheckCompatible2(t *testing.T) {
type test struct {
stored, new *params.Config2
headBlock uint64
headTimestamp uint64
wantErr *params.ConfigCompatError
}
tests := []test{
{stored: presets.AllEthashProtocolChanges, new: presets.AllEthashProtocolChanges, headBlock: 0, headTimestamp: 0, wantErr: nil},
{stored: presets.AllEthashProtocolChanges, new: presets.AllEthashProtocolChanges, headBlock: 0, headTimestamp: uint64(time.Now().Unix()), wantErr: nil},
{stored: presets.AllEthashProtocolChanges, new: presets.AllEthashProtocolChanges, headBlock: 100, wantErr: nil},
{
// Here we check that it's OK to reschedule a time-based fork that's still in the future.
stored: params.NewConfig2(params.Activations{forks.SpuriousDragon: 10}),
new: params.NewConfig2(params.Activations{forks.SpuriousDragon: 20}),
headBlock: 9,
wantErr: nil,
},
{
stored: presets.AllEthashProtocolChanges,
new: params.NewConfig2(params.Activations{}),
headBlock: 3,
wantErr: &params.ConfigCompatError{
What: "arrowGlacierBlock",
StoredBlock: big.NewInt(0),
NewBlock: nil,
RewindToBlock: 0,
},
},
{
stored: presets.AllEthashProtocolChanges,
new: params.NewConfig2(params.Activations{forks.ArrowGlacier: 1}),
headBlock: 3,
wantErr: &params.ConfigCompatError{
What: "arrowGlacierBlock",
StoredBlock: big.NewInt(0),
NewBlock: big.NewInt(1),
RewindToBlock: 0,
},
},
{
stored: params.NewConfig2(params.Activations{
forks.Homestead: 30,
forks.TangerineWhistle: 10,
}),
new: params.NewConfig2(params.Activations{
forks.Homestead: 25,
forks.TangerineWhistle: 20,
}),
headBlock: 25,
wantErr: &params.ConfigCompatError{
What: "eip150Block",
StoredBlock: big.NewInt(10),
NewBlock: big.NewInt(20),
RewindToBlock: 9,
},
},
{
// Special case for Petersburg, which activates with Constantinople if undefined.
stored: params.NewConfig2(params.Activations{forks.Constantinople: 30}),
new: params.NewConfig2(params.Activations{forks.Constantinople: 30, forks.Petersburg: 30}),
headBlock: 40,
wantErr: nil,
},
{
// If Petersburg and Constantinople are scheduled to different blocks, the compatibility check is stricter.
stored: params.NewConfig2(params.Activations{forks.Constantinople: 30}),
new: params.NewConfig2(params.Activations{forks.Constantinople: 30, forks.Petersburg: 31}),
headBlock: 40,
wantErr: &params.ConfigCompatError{
What: "petersburgBlock",
StoredBlock: nil,
NewBlock: big.NewInt(31),
RewindToBlock: 30,
},
},
{
// This one checks that it's OK to reschedule a time-based fork that's still in the future.
stored: params.NewConfig2(params.Activations{forks.Shanghai: 10}),
new: params.NewConfig2(params.Activations{forks.Shanghai: 20}),
headTimestamp: 9,
wantErr: nil,
},
{
// Here's an error for the config from the previous test, the chain has passed the
// fork in the stored configuration, so it cannot be rescheduled.
stored: params.NewConfig2(params.Activations{forks.Shanghai: 10}),
new: params.NewConfig2(params.Activations{forks.Shanghai: 20}),
headTimestamp: 25,
wantErr: &params.ConfigCompatError{
What: "shanghaiTime",
StoredTime: newUint64(10),
NewTime: newUint64(20),
RewindToTime: 9,
},
},
}
for _, test := range tests {
err := test.stored.CheckCompatible(test.new, test.headBlock, test.headTimestamp)
if !reflect.DeepEqual(err, test.wantErr) {
t.Errorf("error mismatch:\nstored: %v\nnew: %v\nheadBlock: %v\nheadTimestamp: %v\nerr: %v\nwant: %v", test.stored, test.new, test.headBlock, test.headTimestamp, err, test.wantErr)
}
}
}
func newUint64(i uint64) *uint64 {
return &i
}

4
params/dao.go
View file

@ -17,8 +17,6 @@
package params
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
)
@ -29,7 +27,7 @@ var DAOForkBlockExtra = common.FromHex("0x64616f2d686172642d666f726b")
// DAOForkExtraRange is the number of consecutive blocks from the DAO fork point
// to override the extra-data in to prevent no-fork attacks.
var DAOForkExtraRange = big.NewInt(10)
var DAOForkExtraRange = uint64(10)
// DAORefundContract is the address of the refund contract to send DAO balances to.
var DAORefundContract = common.HexToAddress("0xbf4ed7b27f1d666546e30d74d50d173d20bca754")

201
params/forks/forkreg.go Normal file
View file

@ -0,0 +1,201 @@
// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package forks
import (
"fmt"
"iter"
"maps"
"slices"
"strings"
)
// Fork identifies a specific network upgrade (hard fork).
type Fork struct {
*forkProperties
}
// BlockBased reports whether the fork is scheduled by block number.
// If false, it is assumed to be scheduled based on block timestamp.
func (d Fork) BlockBased() bool {
return d.blockBased
}
// String returns the fork name.
func (d Fork) String() string {
return d.name
}
// ConfigName returns the fork config name.
func (d Fork) ConfigName() string {
return d.configName
}
// DirectDependencies iterates the fork's direct dependencies.
func (f Fork) DirectDependencies() iter.Seq[Fork] {
return slices.Values(f.directDeps)
}
// Requires says whether a fork (transitively) depends on the fork given as parameter.
func (f Fork) Requires(other Fork) bool {
_, ok := f.deps[other]
return ok
}
func (f Fork) After(other Fork) bool {
return f == other || f.Requires(other)
}
// UnmarshalText parses a fork name. Note this uses the config name.
func (f *Fork) UnmarshalText(v []byte) error {
df, ok := ForkByConfigName(string(v))
if !ok {
return fmt.Errorf("unknown fork %q", v)
}
*f = df
return nil
}
// MarshalText encodes the fork config name.
func (f *Fork) MarshalText() ([]byte, error) {
return []byte(f.configName), nil
}
// DependencyOrder computes an ordering of the given forks, according to their dependencies.
// Note the resulting ordering may not be unique!
func DependencyOrder(list []Fork) []Fork {
var (
inList = make(map[Fork]bool, len(list))
visiting = make(map[Fork]bool, len(list))
mark = make(map[Fork]bool, len(list))
result = make([]Fork, 0, len(list))
)
for _, f := range list {
inList[f] = true
}
var visit func(Fork)
visit = func(f Fork) {
if mark[f] {
return
}
if visiting[f] {
// This can't happen because we check for cycles at definition time.
panic("fork dependency cycle")
}
visiting[f] = true
for _, dep := range f.directDeps {
visit(dep)
}
mark[f] = true
if inList[f] {
result = append(result, f)
}
}
for _, l := range list {
visit(l)
}
return result
}
type forkProperties struct {
name string
configName string
blockBased bool
directDeps []Fork
deps map[Fork]struct{}
}
// Spec is the definition of a fork.
type Spec struct {
Name string // the canonical name
ConfigName string // the name used in genesis.json
BlockBased bool // whether scheduling is based on block number (false == scheduled by timestamp)
Requires []Fork // list of forks that must activate at or before this one
}
var (
registry = map[Fork]struct{}{}
registryByName = map[string]Fork{}
registryByConfigName = map[string]Fork{}
)
// Define creates a fork definition in the registry.
// This is meant to be called at package initialization time.
func Define(ft Spec) Fork {
if ft.Name == "" {
panic("blank fork name")
}
if _, ok := registryByName[ft.Name]; ok {
panic(fmt.Sprintf("fork %q already defined", ft.Name))
}
cname := ft.ConfigName
if cname == "" {
cname = strings.ToLower(ft.Name[:1]) + ft.Name[1:]
}
if _, ok := registryByConfigName[cname]; ok {
panic(fmt.Sprintf("fork config name %q already defined", cname))
}
f := Fork{
forkProperties: &forkProperties{
name: ft.Name,
configName: cname,
blockBased: ft.BlockBased,
directDeps: slices.Clone(ft.Requires),
deps: make(map[Fork]struct{}),
},
}
// Build the dependency set.
for _, dep := range ft.Requires {
if dep == f {
panic("fork depends on itself")
}
if dep.Requires(f) {
panic(fmt.Sprintf("fork dependency cycle: %v requires %v", dep, f))
}
maps.Copy(f.deps, dep.deps)
f.deps[dep] = struct{}{}
}
// Add to registry.
registry[f] = struct{}{}
registryByName[f.name] = f
registryByConfigName[cname] = f
return f
}
// All iterates over defined forks in order of their names.
func All() iter.Seq[Fork] {
sorted := slices.SortedFunc(maps.Keys(registry), func(f1, f2 Fork) int {
return strings.Compare(f1.name, f2.name)
})
return slices.Values(sorted)
}
// ForkByName returns a fork by its canonical name.
func ForkByName(name string) (Fork, bool) {
f, ok := registryByName[name]
return f, ok
}
// ForkByConfigName returns a fork by its configuration name.
func ForkByConfigName(name string) (Fork, bool) {
f, ok := registryByConfigName[name]
return f, ok
}

77
params/forks/forkreg_test.go Normal file
View file

@ -0,0 +1,77 @@
// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package forks
import (
"slices"
"testing"
"github.com/stretchr/testify/assert"
)
func TestForkDepends(t *testing.T) {
assert.True(t, Cancun.Requires(London))
assert.True(t, Cancun.Requires(Frontier))
assert.False(t, London.Requires(Cancun))
}
func TestForkName(t *testing.T) {
assert.Equal(t, "Cancun", Cancun.String())
assert.Equal(t, "cancun", Cancun.ConfigName())
f, ok := ForkByName("Cancun")
if !ok {
t.Fatal("cancun fork not found by name")
}
if f != Cancun {
t.Fatal("wrong fork found by name cancun")
}
f, ok = ForkByConfigName("cancun")
if !ok {
t.Fatal("cancun fork not found by name")
}
if f != Cancun {
t.Fatal("wrong fork found by name cancun")
}
}
func TestForkDependencyOrder(t *testing.T) {
tests := []struct {
list, result []Fork
}{
{
list: []Fork{},
result: []Fork{},
},
{
list: []Fork{BPO2, Homestead, Cancun, London, Paris},
result: []Fork{Homestead, London, Paris, Cancun, BPO2},
},
{
list: []Fork{BPO3, Osaka, Cancun, Prague, BPO1, BPO2},
result: []Fork{Cancun, Prague, Osaka, BPO1, BPO2, BPO3},
},
}
for _, test := range tests {
res := DependencyOrder(test.list)
if !slices.Equal(res, test.result) {
t.Errorf("DependencyOrder(%v) -> %v\n want: %v", test.list, res, test.result)
}
}
}

203
params/forks/forks.go
View file

@ -1,4 +1,4 @@
// Copyright 2023 The go-ethereum Authors
// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
@ -16,60 +16,155 @@
package forks
// Fork is a numerical identifier of specific network upgrades (forks).
type Fork int
// Ethereum mainnet forks.
var (
Frontier = Define(Spec{
Name: "Frontier",
BlockBased: true,
})
const (
Frontier Fork = iota
FrontierThawing
Homestead
DAO
TangerineWhistle // a.k.a. the EIP150 fork
SpuriousDragon // a.k.a. the EIP155 fork
Byzantium
Constantinople
Petersburg
Istanbul
MuirGlacier
Berlin
London
ArrowGlacier
GrayGlacier
Paris
Shanghai
Cancun
Prague
Osaka
Homestead = Define(Spec{
Name: "Homestead",
BlockBased: true,
Requires: []Fork{Frontier},
})
DAO = Define(Spec{
Name: "DAO",
ConfigName: "daoFork",
BlockBased: true,
Requires: []Fork{Homestead},
})
TangerineWhistle = Define(Spec{
Name: "TangerineWhistle",
ConfigName: "eip150",
BlockBased: true,
Requires: []Fork{Homestead},
})
SpuriousDragon = Define(Spec{
Name: "SpuriousDragon",
ConfigName: "eip155",
BlockBased: true,
Requires: []Fork{TangerineWhistle},
})
Byzantium = Define(Spec{
Name: "Byzantium",
BlockBased: true,
Requires: []Fork{SpuriousDragon},
})
Constantinople = Define(Spec{
Name: "Constantinople",
BlockBased: true,
Requires: []Fork{Byzantium},
})
Petersburg = Define(Spec{
Name: "Petersburg",
BlockBased: true,
Requires: []Fork{Constantinople},
})
Istanbul = Define(Spec{
Name: "Istanbul",
BlockBased: true,
Requires: []Fork{Petersburg},
})
MuirGlacier = Define(Spec{
Name: "MuirGlacier",
BlockBased: true,
Requires: []Fork{Istanbul},
})
Berlin = Define(Spec{
Name: "Berlin",
BlockBased: true,
Requires: []Fork{Istanbul},
})
London = Define(Spec{
Name: "London",
BlockBased: true,
Requires: []Fork{Berlin},
})
ArrowGlacier = Define(Spec{
Name: "ArrowGlacier",
BlockBased: true,
Requires: []Fork{London, MuirGlacier},
})
GrayGlacier = Define(Spec{
Name: "GrayGlacier",
BlockBased: true,
Requires: []Fork{London, ArrowGlacier},
})
Paris = Define(Spec{
Name: "Paris",
ConfigName: "mergeNetsplit",
BlockBased: true,
Requires: []Fork{London},
})
Shanghai = Define(Spec{
Name: "Shanghai",
Requires: []Fork{Paris},
})
Cancun = Define(Spec{
Name: "Cancun",
Requires: []Fork{Shanghai},
})
Prague = Define(Spec{
Name: "Prague",
Requires: []Fork{Cancun},
})
Osaka = Define(Spec{
Name: "Osaka",
Requires: []Fork{Prague},
})
)
// String implements fmt.Stringer.
func (f Fork) String() string {
s, ok := forkToString[f]
if !ok {
return "Unknown fork"
}
return s
}
// Verkle forks.
var (
Verkle = Define(Spec{
Name: "Verkle",
Requires: []Fork{Prague},
})
)
var forkToString = map[Fork]string{
Frontier: "Frontier",
FrontierThawing: "Frontier Thawing",
Homestead: "Homestead",
DAO: "DAO",
TangerineWhistle: "Tangerine Whistle",
SpuriousDragon: "Spurious Dragon",
Byzantium: "Byzantium",
Constantinople: "Constantinople",
Petersburg: "Petersburg",
Istanbul: "Istanbul",
MuirGlacier: "Muir Glacier",
Berlin: "Berlin",
London: "London",
ArrowGlacier: "Arrow Glacier",
GrayGlacier: "Gray Glacier",
Paris: "Paris",
Shanghai: "Shanghai",
Cancun: "Cancun",
Prague: "Prague",
Osaka: "Osaka",
}
// BPOs - 'blob parameter only' forks.
var (
BPO1 = Define(Spec{
Name: "BPO1",
ConfigName: "bpo1",
Requires: []Fork{Osaka},
})
BPO2 = Define(Spec{
Name: "BPO2",
ConfigName: "bpo2",
Requires: []Fork{BPO1},
})
BPO3 = Define(Spec{
Name: "BPO3",
ConfigName: "bpo3",
Requires: []Fork{BPO2},
})
BPO4 = Define(Spec{
Name: "BPO4",
ConfigName: "bpo4",
Requires: []Fork{BPO3},
})
BPO5 = Define(Spec{
Name: "BPO5",
ConfigName: "bpo5",
Requires: []Fork{BPO4},
})
)

162
params/presets/presets.go Normal file
View file

@ -0,0 +1,162 @@
// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package presets
import (
"math"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/params/forks"
)
var mainnetTD, _ = new(big.Int).SetString("58_750_000_000_000_000_000_000", 0)
var Mainnet = params.NewConfig2(
params.Activations{
forks.Homestead: 1_150_000,
forks.DAO: 1_920_000,
forks.TangerineWhistle: 2_463_000,
forks.SpuriousDragon: 2_675_000,
forks.Byzantium: 4_370_000,
forks.Constantinople: 7_280_000,
forks.Petersburg: 7_280_000,
forks.Istanbul: 9_069_000,
forks.MuirGlacier: 9_200_000,
forks.Berlin: 12_244_000,
forks.London: 12_965_000,
forks.ArrowGlacier: 13_773_000,
forks.GrayGlacier: 15_050_000,
forks.Paris: 15_537_393,
// time-based forks
forks.Shanghai: 1681338455,
forks.Cancun: 1710338135,
forks.Prague: 1746612311,
},
params.ChainID.V(big.NewInt(1)),
params.TerminalTotalDifficulty.V(mainnetTD),
params.DepositContractAddress.V(common.HexToAddress("0x00000000219ab540356cbb839cbe05303d7705fa")),
params.DAOForkSupport.V(true),
params.BlobSchedule.V(map[forks.Fork]params.BlobConfig{
forks.Cancun: *params.DefaultCancunBlobConfig,
forks.Prague: *params.DefaultPragueBlobConfig,
}),
)
var sepoliaTD, _ = new(big.Int).SetString("17_000_000_000_000_000", 0)
// SepoliaChainConfig contains the chain parameters to run a node on the Sepolia test network.
var Sepolia = params.NewConfig2(
params.Activations{
forks.Homestead: 0,
forks.TangerineWhistle: 0,
forks.SpuriousDragon: 0,
forks.Byzantium: 0,
forks.Constantinople: 0,
forks.Petersburg: 0,
forks.Istanbul: 0,
forks.MuirGlacier: 0,
forks.Berlin: 0,
forks.London: 0,
forks.Paris: 1735371,
// time-based forks
forks.Shanghai: 1677557088,
forks.Cancun: 1706655072,
forks.Prague: 1741159776,
},
params.ChainID.V(big.NewInt(11155111)),
params.TerminalTotalDifficulty.V(sepoliaTD),
params.DepositContractAddress.V(common.HexToAddress("0x7f02c3e3c98b133055b8b348b2ac625669ed295d")),
params.BlobSchedule.V(map[forks.Fork]params.BlobConfig{
forks.Cancun: *params.DefaultCancunBlobConfig,
forks.Prague: *params.DefaultPragueBlobConfig,
}),
)
// AllEthashProtocolChanges2 contains every protocol change (EIPs) introduced
// and accepted by the Ethereum core developers into the Ethash consensus.
var AllEthashProtocolChanges = params.NewConfig2(
params.Activations{
forks.Homestead: 0,
forks.TangerineWhistle: 0,
forks.SpuriousDragon: 0,
forks.Byzantium: 0,
forks.Constantinople: 0,
forks.Petersburg: 0,
forks.Istanbul: 0,
forks.MuirGlacier: 0,
forks.Berlin: 0,
forks.London: 0,
forks.ArrowGlacier: 0,
forks.GrayGlacier: 0,
},
params.ChainID.V(big.NewInt(1337)),
params.TerminalTotalDifficulty.V(big.NewInt(math.MaxInt64)),
)
// TestChainConfig contains every protocol change (EIPs) introduced
// and accepted by the Ethereum core developers for testing purposes.
var TestChainConfig = params.NewConfig2(
params.Activations{
forks.Homestead: 0,
forks.TangerineWhistle: 0,
forks.SpuriousDragon: 0,
forks.Byzantium: 0,
forks.Constantinople: 0,
forks.Petersburg: 0,
forks.Istanbul: 0,
forks.MuirGlacier: 0,
forks.Berlin: 0,
forks.London: 0,
forks.ArrowGlacier: 0,
forks.GrayGlacier: 0,
},
params.ChainID.V(big.NewInt(1)),
params.TerminalTotalDifficulty.V(big.NewInt(math.MaxInt64)),
)
// MergedTestChainConfig2 contains every protocol change (EIPs) introduced
// and accepted by the Ethereum core developers for testing purposes.
var MergedTestChainConfig = params.NewConfig2(
params.Activations{
forks.Homestead: 0,
forks.TangerineWhistle: 0,
forks.SpuriousDragon: 0,
forks.Byzantium: 0,
forks.Constantinople: 0,
forks.Petersburg: 0,
forks.Istanbul: 0,
forks.MuirGlacier: 0,
forks.Berlin: 0,
forks.London: 0,
forks.ArrowGlacier: 0,
forks.GrayGlacier: 0,
forks.Paris: 0,
forks.Shanghai: 0,
forks.Cancun: 0,
forks.Prague: 0,
forks.Osaka: 0,
},
params.ChainID.V(big.NewInt(1)),
params.TerminalTotalDifficulty.V(big.NewInt(0)),
params.BlobSchedule.V(map[forks.Fork]params.BlobConfig{
forks.Cancun: *params.DefaultCancunBlobConfig,
forks.Prague: *params.DefaultPragueBlobConfig,
forks.Osaka: *params.DefaultOsakaBlobConfig,
}),
)

12
params/presets/presets_test.go Normal file
View file

@ -0,0 +1,12 @@
package presets
import "testing"
func TestPresetsValidate(t *testing.T) {
if err := Mainnet.Validate(); err != nil {
t.Fatal("mainnet is invalid:", err)
}
if err := Sepolia.Validate(); err != nil {
t.Fatal("sepolia is invalid:", err)
}
}

125
params/registry.go Normal file
View file

@ -0,0 +1,125 @@
// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package params
import (
"fmt"
"strings"
)
// Parameter represents a chain parameter.
// Parameters are globally registered using `Define`.
type Parameter[V any] struct {
info regInfo
}
// Get retrieves the value of a parameter from a config.
func (p Parameter[V]) Get(cfg *Config2) V {
if p.info.id == 0 {
panic("zero parameter")
}
v, ok := cfg.param[p.info.id]
if ok {
return v.(V)
}
return p.info.defaultValue.(V)
}
// Defined reports whether the parameter is set in the config.
func (p Parameter[V]) Defined(cfg *Config2) bool {
if p.info.id == 0 {
panic("zero parameter")
}
_, ok := cfg.param[p.info.id]
return ok
}
// V creates a ParamValue with the given value. You need this to
// specify parameter values when constructing a Config in code.
func (p Parameter[V]) V(v V) ParamValue {
if p.info.id == 0 {
panic("zero parameter")
}
return ParamValue{p.info.id, v}
}
// ParamValue contains a chain parameter and its value.
// This is created by calling `V` on the parameter.
type ParamValue struct {
id int
value any
}
var (
paramCounter = int(1)
paramRegistry = map[int]regInfo{}
paramRegistryByName = map[string]int{}
)
// T is the definition of a chain parameter type.
type T[V any] struct {
Name string // the parameter name
Optional bool // optional says
Default V
Validate func(v V, cfg *Config2) error
}
type regInfo struct {
id int
name string
optional bool
defaultValue any
new func() any
validate func(any, *Config2) error
}
// Define creates a chain parameter in the registry.
// This is meant to be called at package initialization time.
func Define[V any](def T[V]) Parameter[V] {
if def.Name == "" {
panic("blank parameter name")
}
if id, defined := paramRegistryByName[def.Name]; defined {
info := paramRegistry[id]
panic(fmt.Sprintf("chain parameter %q already registered with type %T", def.Name, info.defaultValue))
}
if strings.HasSuffix(def.Name, "Block") || strings.HasSuffix(def.Name, "Time") {
panic("chain parameter name cannot end in 'Block' or 'Time'")
}
id := paramCounter
paramCounter++
regInfo := regInfo{
id: id,
name: def.Name,
optional: def.Optional,
defaultValue: def.Default,
new: func() any {
return new(V)
},
validate: func(v any, cfg *Config2) error {
if def.Validate == nil {
return nil
}
return def.Validate(v.(V), cfg)
},
}
paramRegistry[id] = regInfo
paramRegistryByName[def.Name] = id
return Parameter[V]{info: regInfo}
}

38
params/rules2.go Normal file
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// Copyright 2025 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package params
import (
"github.com/ethereum/go-ethereum/params/forks"
)
// Rules captures the activations of forks at a particular block height.
type Rules2 struct {
active map[forks.Fork]bool
}
func (cfg *Config2) Rules(blockNum uint64, blockTime uint64) Rules2 {
r := Rules2{
active: make(map[forks.Fork]bool, len(cfg.activation)),
}
return r
}
// Active reports whether the given fork is active.
func (r *Rules2) Active(f forks.Fork) bool {
return r.active[f]
}

24
params/testdata/invalid-blobschedule-blockbased.json vendored Normal file
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{
"config": {
"homesteadBlock": 0,
"eip150Block": 0,
"eip155Block": 0,
"byzantiumBlock": 0,
"constantinopleBlock": 0,
"petersburgBlock": 0,
"istanbulBlock": 0,
"berlinBlock": 0,
"londonBlock": 0,
"mergeNetsplitBlock": 0,
"shanghaiTime": 900,
"chainId": 99,
"blobSchedule": {
"berlin": {
"target": 8,
"max": 5,
"baseFeeUpdateFraction": 3338477
}
}
},
"error": "invalid blobSchedule: contains fork \"berlin\" with block-number based scheduling"
}

26
params/testdata/invalid-blobschedule-missing.json vendored Normal file
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{
"config": {
"homesteadBlock": 0,
"eip150Block": 0,
"eip155Block": 0,
"byzantiumBlock": 0,
"constantinopleBlock": 0,
"petersburgBlock": 0,
"istanbulBlock": 0,
"berlinBlock": 0,
"londonBlock": 0,
"mergeNetsplitBlock": 0,
"shanghaiTime": 900,
"cancunTime": 1000,
"pragueTime": 1100,
"chainId": 99,
"blobSchedule": {
"cancun": {
"target": 8,
"max": 5,
"baseFeeUpdateFraction": 3338477
}
}
},
"error": "invalid blobSchedule: missing entry for fork \"prague\""
}

24
params/testdata/invalid-blobschedule-validation.json vendored Normal file
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{
"config": {
"homesteadBlock": 0,
"eip150Block": 0,
"eip155Block": 0,
"byzantiumBlock": 0,
"constantinopleBlock": 0,
"petersburgBlock": 0,
"istanbulBlock": 0,
"berlinBlock": 0,
"londonBlock": 0,
"mergeNetsplitBlock": 0,
"shanghaiTime": 900,
"cancunTime": 1000,
"chainId": 99,
"blobSchedule": {
"cancun": {
"target": 8,
"max": 10
}
}
},
"error": "invalid blobSchedule: invalid blob config for fork \"cancun\": update fraction must be defined and non-zero"
}

7
params/testdata/invalid-forkorder.json vendored Normal file
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{
"config": {
"homesteadBlock": 10,
"eip150Block": 8
},
"error": "unsupported fork ordering: Homestead enabled at block 10, but TangerineWhistle enabled at block 8"
}

8
params/testdata/invalid-missingChainID.json vendored Normal file
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{
"config": {
"homesteadBlock": 7,
"eip150Block": 8,
"eip155Block": 9
},
"error": "required chain parameter \"chainId\" is not set"
}