all: tie timestamp based forks to the passage of London

cmd/evm/internal/t8ntool/transaction.go

@@ -140,7 +140,7 @@ func Transaction(ctx *cli.Context) error {
 		}
 		// Check intrinsic gas
 		if gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil,
-			chainConfig.IsHomestead(new(big.Int)), chainConfig.IsIstanbul(new(big.Int)), chainConfig.IsShanghai(0)); err != nil {
+			chainConfig.IsHomestead(new(big.Int)), chainConfig.IsIstanbul(new(big.Int)), chainConfig.IsShanghai(new(big.Int), 0)); err != nil {
 			r.Error = err
 			results = append(results, r)
 			continue
@@ -172,7 +172,7 @@ func Transaction(ctx *cli.Context) error {
 			r.Error = errors.New("gas * maxFeePerGas exceeds 256 bits")
 		}
 		// Check whether the init code size has been exceeded.
-		if chainConfig.IsShanghai(0) && tx.To() == nil && len(tx.Data()) > params.MaxInitCodeSize {
+		if chainConfig.IsShanghai(new(big.Int), 0) && tx.To() == nil && len(tx.Data()) > params.MaxInitCodeSize {
 			r.Error = errors.New("max initcode size exceeded")
 		}
 		results = append(results, r)

cmd/evm/internal/t8ntool/transition.go

@@ -261,7 +261,7 @@ func Transition(ctx *cli.Context) error {
 			return NewError(ErrorConfig, errors.New("EIP-1559 config but missing 'currentBaseFee' in env section"))
 		}
 	}
-	if chainConfig.IsShanghai(prestate.Env.Number) && prestate.Env.Withdrawals == nil {
+	if chainConfig.IsShanghai(big.NewInt(int64(prestate.Env.Number)), prestate.Env.Timestamp) && prestate.Env.Withdrawals == nil {
 		return NewError(ErrorConfig, errors.New("Shanghai config but missing 'withdrawals' in env section"))
 	}
 	isMerged := chainConfig.TerminalTotalDifficulty != nil && chainConfig.TerminalTotalDifficulty.BitLen() == 0

consensus/beacon/consensus.go

@@ -261,15 +261,15 @@ func (beacon *Beacon) verifyHeader(chain consensus.ChainHeaderReader, header, pa
 		return err
 	}
 	// Verify existence / non-existence of withdrawalsHash.
-	shanghai := chain.Config().IsShanghai(header.Time)
+	shanghai := chain.Config().IsShanghai(header.Number, header.Time)
 	if shanghai && header.WithdrawalsHash == nil {
 		return errors.New("missing withdrawalsHash")
 	}
 	if !shanghai && header.WithdrawalsHash != nil {
 		return fmt.Errorf("invalid withdrawalsHash: have %x, expected nil", header.WithdrawalsHash)
 	}
 	// Verify the existence / non-existence of excessDataGas
-	cancun := chain.Config().IsCancun(header.Time)
+	cancun := chain.Config().IsCancun(header.Number, header.Time)
 	if cancun && header.ExcessDataGas == nil {
 		return errors.New("missing excessDataGas")
 	}
@@ -356,7 +356,7 @@ func (beacon *Beacon) FinalizeAndAssemble(chain consensus.ChainHeaderReader, hea
 	if !beacon.IsPoSHeader(header) {
 		return beacon.ethone.FinalizeAndAssemble(chain, header, state, txs, uncles, receipts, nil)
 	}
-	shanghai := chain.Config().IsShanghai(header.Time)
+	shanghai := chain.Config().IsShanghai(header.Number, header.Time)
 	if shanghai {
 		// All blocks after Shanghai must include a withdrawals root.
 		if withdrawals == nil {

consensus/clique/clique.go

@@ -298,10 +298,10 @@ 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.Time) {
+	if chain.Config().IsShanghai(header.Number, header.Time) {
 		return fmt.Errorf("clique does not support shanghai fork")
 	}
-	if chain.Config().IsCancun(header.Time) {
+	if chain.Config().IsCancun(header.Number, header.Time) {
 		return fmt.Errorf("clique does not support cancun fork")
 	}
 	// All basic checks passed, verify cascading fields

consensus/ethash/consensus.go

@@ -262,10 +262,10 @@ 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.Time) {
+	if chain.Config().IsShanghai(header.Number, header.Time) {
 		return fmt.Errorf("ethash does not support shanghai fork")
 	}
-	if chain.Config().IsCancun(header.Time) {
+	if chain.Config().IsCancun(header.Number, header.Time) {
 		return fmt.Errorf("ethash does not support cancun fork")
 	}
 	// Add some fake checks for tests

core/genesis.go

@@ -463,7 +463,7 @@ func (g *Genesis) ToBlock() *types.Block {
 		}
 	}
 	var withdrawals []*types.Withdrawal
-	if g.Config != nil && g.Config.IsShanghai(g.Timestamp) {
+	if g.Config != nil && g.Config.IsShanghai(big.NewInt(int64(g.Number)), g.Timestamp) {
 		head.WithdrawalsHash = &types.EmptyWithdrawalsHash
 		withdrawals = make([]*types.Withdrawal, 0)
 	}

core/state_processor.go

@@ -91,7 +91,7 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
 	}
 	// Fail if Shanghai not enabled and len(withdrawals) is non-zero.
 	withdrawals := block.Withdrawals()
-	if len(withdrawals) > 0 && !p.config.IsShanghai(block.Time()) {
+	if len(withdrawals) > 0 && !p.config.IsShanghai(block.Number(), block.Time()) {
 		return nil, nil, 0, fmt.Errorf("withdrawals before shanghai")
 	}
 	// Finalize the block, applying any consensus engine specific extras (e.g. block rewards)

core/state_processor_test.go

@@ -403,7 +403,7 @@ func GenerateBadBlock(parent *types.Block, engine consensus.Engine, txs types.Tr
 	if config.IsLondon(header.Number) {
 		header.BaseFee = misc.CalcBaseFee(config, parent.Header())
 	}
-	if config.IsShanghai(header.Time) {
+	if config.IsShanghai(header.Number, header.Time) {
 		header.WithdrawalsHash = &types.EmptyWithdrawalsHash
 	}
 	var receipts []*types.Receipt
@@ -423,7 +423,7 @@ func GenerateBadBlock(parent *types.Block, engine consensus.Engine, txs types.Tr
 	}
 	header.Root = common.BytesToHash(hasher.Sum(nil))
 	// Assemble and return the final block for sealing
-	if config.IsShanghai(header.Time) {
+	if config.IsShanghai(header.Number, header.Time) {
 		return types.NewBlockWithWithdrawals(header, txs, nil, receipts, []*types.Withdrawal{}, trie.NewStackTrie(nil))
 	}
 	return types.NewBlock(header, txs, nil, receipts, trie.NewStackTrie(nil))

core/txpool/txpool.go

@@ -1397,7 +1397,7 @@ func (pool *TxPool) reset(oldHead, newHead *types.Header) {
 	pool.istanbul.Store(pool.chainconfig.IsIstanbul(next))
 	pool.eip2718.Store(pool.chainconfig.IsBerlin(next))
 	pool.eip1559.Store(pool.chainconfig.IsLondon(next))
-	pool.shanghai.Store(pool.chainconfig.IsShanghai(uint64(time.Now().Unix())))
+	pool.shanghai.Store(pool.chainconfig.IsShanghai(next, uint64(time.Now().Unix())))
 }
 
 // promoteExecutables moves transactions that have become processable from the

core/types/transaction_signing.go

@@ -40,7 +40,7 @@ type sigCache struct {
 func MakeSigner(config *params.ChainConfig, blockNumber *big.Int, blockTime uint64) Signer {
 	var signer Signer
 	switch {
-	case config.IsCancun(blockTime):
+	case config.IsCancun(blockNumber, blockTime):
 		signer = NewCancunSigner(config.ChainID)
 	case config.IsLondon(blockNumber):
 		signer = NewLondonSigner(config.ChainID)

eth/catalyst/api.go

@@ -20,6 +20,7 @@ package catalyst
 import (
 	"errors"
 	"fmt"
+	"math/big"
 	"sync"
 	"time"
 
@@ -167,7 +168,7 @@ func (api *ConsensusAPI) ForkchoiceUpdatedV1(update engine.ForkchoiceStateV1, pa
 		if payloadAttributes.Withdrawals != nil {
 			return engine.STATUS_INVALID, engine.InvalidParams.With(fmt.Errorf("withdrawals not supported in V1"))
 		}
-		if api.eth.BlockChain().Config().IsShanghai(payloadAttributes.Timestamp) {
+		if api.eth.BlockChain().Config().IsShanghai(api.eth.BlockChain().Config().LondonBlock, payloadAttributes.Timestamp) {
 			return engine.STATUS_INVALID, engine.InvalidParams.With(fmt.Errorf("forkChoiceUpdateV1 called post-shanghai"))
 		}
 	}
@@ -185,7 +186,7 @@ func (api *ConsensusAPI) ForkchoiceUpdatedV2(update engine.ForkchoiceStateV1, pa
 }
 
 func (api *ConsensusAPI) verifyPayloadAttributes(attr *engine.PayloadAttributes) error {
-	if !api.eth.BlockChain().Config().IsShanghai(attr.Timestamp) {
+	if !api.eth.BlockChain().Config().IsShanghai(api.eth.BlockChain().Config().LondonBlock, attr.Timestamp) {
 		// Reject payload attributes with withdrawals before shanghai
 		if attr.Withdrawals != nil {
 			return errors.New("withdrawals before shanghai")
@@ -423,7 +424,7 @@ func (api *ConsensusAPI) NewPayloadV1(params engine.ExecutableData) (engine.Payl
 
 // NewPayloadV2 creates an Eth1 block, inserts it in the chain, and returns the status of the chain.
 func (api *ConsensusAPI) NewPayloadV2(params engine.ExecutableData) (engine.PayloadStatusV1, error) {
-	if api.eth.BlockChain().Config().IsShanghai(params.Timestamp) {
+	if api.eth.BlockChain().Config().IsShanghai(new(big.Int).SetUint64(params.Number), params.Timestamp) {
 		if params.Withdrawals == nil {
 			return engine.PayloadStatusV1{Status: engine.INVALID}, engine.InvalidParams.With(fmt.Errorf("nil withdrawals post-shanghai"))
 		}

light/txpool.go

@@ -318,7 +318,7 @@ func (pool *TxPool) setNewHead(head *types.Header) {
 	next := new(big.Int).Add(head.Number, big.NewInt(1))
 	pool.istanbul = pool.config.IsIstanbul(next)
 	pool.eip2718 = pool.config.IsBerlin(next)
-	pool.shanghai = pool.config.IsShanghai(uint64(time.Now().Unix()))
+	pool.shanghai = pool.config.IsShanghai(next, uint64(time.Now().Unix()))
 }
 
 // Stop stops the light transaction pool

params/config.go

@@ -492,18 +492,18 @@ func (c *ChainConfig) IsTerminalPoWBlock(parentTotalDiff *big.Int, totalDiff *bi
 }
 
 // IsShanghai returns whether time is either equal to the Shanghai fork time or greater.
-func (c *ChainConfig) IsShanghai(time uint64) bool {
-	return isTimestampForked(c.ShanghaiTime, time)
+func (c *ChainConfig) IsShanghai(num *big.Int, time uint64) bool {
+	return c.IsLondon(num) && isTimestampForked(c.ShanghaiTime, time)
 }
 
 // IsCancun returns whether num is either equal to the Cancun fork time or greater.
-func (c *ChainConfig) IsCancun(time uint64) bool {
-	return isTimestampForked(c.CancunTime, time)
+func (c *ChainConfig) IsCancun(num *big.Int, time uint64) bool {
+	return c.IsLondon(num) && isTimestampForked(c.CancunTime, time)
 }
 
 // IsPrague returns whether num is either equal to the Prague fork time or greater.
-func (c *ChainConfig) IsPrague(time uint64) bool {
-	return isTimestampForked(c.PragueTime, time)
+func (c *ChainConfig) IsPrague(num *big.Int, time uint64) bool {
+	return c.IsLondon(num) && isTimestampForked(c.PragueTime, time)
 }
 
 // CheckCompatible checks whether scheduled fork transitions have been imported
@@ -829,8 +829,8 @@ func (c *ChainConfig) Rules(num *big.Int, isMerge bool, timestamp uint64) Rules
 		IsBerlin:         c.IsBerlin(num),
 		IsLondon:         c.IsLondon(num),
 		IsMerge:          isMerge,
-		IsShanghai:       c.IsShanghai(timestamp),
-		IsCancun:         c.IsCancun(timestamp),
-		IsPrague:         c.IsPrague(timestamp),
+		IsShanghai:       c.IsShanghai(num, timestamp),
+		IsCancun:         c.IsCancun(num, timestamp),
+		IsPrague:         c.IsPrague(num, timestamp),
 	}
 }

params/config_test.go

@@ -121,6 +121,7 @@ func TestCheckCompatible(t *testing.T) {
 
 func TestConfigRules(t *testing.T) {
 	c := &ChainConfig{
+		LondonBlock:  new(big.Int),
 		ShanghaiTime: newUint64(500),
 	}
 	var stamp uint64