feat: remove the restriction on pre-compile

core/blockchain_test.go

@@ -3520,7 +3520,7 @@ func TestCurieTransition(t *testing.T) {
 	b, _ := json.Marshal(params.AllEthashProtocolChanges)
 	json.Unmarshal(b, &config)
 	config.CurieBlock = big.NewInt(2)
-	config.DarwinTime = nil
+	config.Morph203Time = nil
 
 	var (
 		db      = rawdb.NewMemoryDatabase()

core/state_processor_test.go

@@ -58,7 +58,7 @@ func TestStateProcessorErrors(t *testing.T) {
 			ShanghaiBlock:       big.NewInt(0),
 			BernoulliBlock:      big.NewInt(0),
 			CurieBlock:          big.NewInt(0),
-			DarwinTime:          new(uint64),
+			Morph203Time:        new(uint64),
 			Ethash:              new(params.EthashConfig),
 		}
 		signer  = types.LatestSigner(config)

core/vm/contracts.go

@@ -35,8 +35,7 @@ import (
 )
 
 var (
-	errPrecompileDisabled     = errors.New("sha256, ripemd160, blake2f precompiles temporarily disabled")
-	errModexpUnsupportedInput = errors.New("modexp temporarily only accepts inputs of 32 bytes (256 bits) or less")
+	errPrecompileDisabled = errors.New("sha256, ripemd160, blake2f precompiles temporarily disabled")
 )
 
 // PrecompiledContract is the basic interface for native Go contracts. The implementation
@@ -125,6 +124,20 @@ var PrecompiledContractsBernoulli = map[common.Address]PrecompiledContract{
 	common.BytesToAddress([]byte{9}): &blake2FDisabled{},
 }
 
+// PrecompiledContractsMorph203 contains the default set of pre-compiled Ethereum
+// contracts used in the Morph203 release.
+var PrecompiledContractsMorph203 = map[common.Address]PrecompiledContract{
+	common.BytesToAddress([]byte{1}): &ecrecover{},
+	common.BytesToAddress([]byte{2}): &sha256hash{},
+	common.BytesToAddress([]byte{3}): &ripemd160hash{},
+	common.BytesToAddress([]byte{4}): &dataCopy{},
+	common.BytesToAddress([]byte{5}): &bigModExp{eip2565: true},
+	common.BytesToAddress([]byte{6}): &bn256AddIstanbul{},
+	common.BytesToAddress([]byte{7}): &bn256ScalarMulIstanbul{},
+	common.BytesToAddress([]byte{8}): &bn256PairingIstanbul{},
+	common.BytesToAddress([]byte{9}): &blake2F{},
+}
+
 // PrecompiledContractsBLS contains the set of pre-compiled Ethereum
 // contracts specified in EIP-2537. These are exported for testing purposes.
 var PrecompiledContractsBLS = map[common.Address]PrecompiledContract{
@@ -140,6 +153,7 @@ var PrecompiledContractsBLS = map[common.Address]PrecompiledContract{
 }
 
 var (
+	PrecompiledAddressesMorph203   []common.Address
 	PrecompiledAddressesBernoulli  []common.Address
 	PrecompiledAddressesArchimedes []common.Address
 	PrecompiledAddressesBerlin     []common.Address
@@ -167,11 +181,16 @@ func init() {
 	for k := range PrecompiledContractsBernoulli {
 		PrecompiledAddressesBernoulli = append(PrecompiledAddressesBernoulli, k)
 	}
+	for k := range PrecompiledContractsMorph203 {
+		PrecompiledAddressesMorph203 = append(PrecompiledAddressesMorph203, k)
+	}
 }
 
 // ActivePrecompiles returns the precompiles enabled with the current configuration.
 func ActivePrecompiles(rules params.Rules) []common.Address {
 	switch {
+	case rules.IsMorph203:
+		return PrecompiledAddressesMorph203
 	case rules.IsBernoulli:
 		return PrecompiledAddressesBernoulli
 	case rules.IsArchimedes:
@@ -437,11 +456,6 @@ func (c *bigModExp) Run(input []byte) ([]byte, error) {
 		expLen  = expLenBigInt.Uint64()
 		modLen  = modLenBigInt.Uint64()
 	)
-	// Check that all inputs are `u256` (32 - bytes) or less, revert otherwise
-	var lenLimit = new(big.Int).SetInt64(32)
-	if baseLenBigInt.Cmp(lenLimit) > 0 || expLenBigInt.Cmp(lenLimit) > 0 || modLenBigInt.Cmp(lenLimit) > 0 {
-		return nil, errModexpUnsupportedInput
-	}
 	if len(input) > 96 {
 		input = input[96:]
 	} else {
@@ -578,10 +592,6 @@ var (
 // runBn256Pairing implements the Bn256Pairing precompile, referenced by both
 // Byzantium and Istanbul operations.
 func runBn256Pairing(input []byte) ([]byte, error) {
-	// Allow at most 4 inputs
-	if len(input) > 4*192 {
-		return nil, errBadPairingInput
-	}
 	// Handle some corner cases cheaply
 	if len(input)%192 > 0 {
 		return nil, errBadPairingInput

core/vm/interpreter.go

@@ -74,8 +74,6 @@ func NewEVMInterpreter(evm *EVM, cfg Config) *EVMInterpreter {
 	if cfg.JumpTable[STOP] == nil {
 		var jt JumpTable
 		switch {
-		case evm.chainRules.IsDarwin:
-			jt = darwinInstructionSet
 		case evm.chainRules.IsCurie:
 			jt = curieInstructionSet
 		case evm.chainRules.IsShanghai:

core/vm/jump_table.go

@@ -60,19 +60,11 @@ var (
 	londonInstructionSet           = newLondonInstructionSet()
 	shanghaiInstructionSet         = newShanghaiInstructionSet()
 	curieInstructionSet            = newCurieInstructionSet()
-	darwinInstructionSet           = newDarwinInstructionSet()
 )
 
 // JumpTable contains the EVM opcodes supported at a given fork.
 type JumpTable [256]*operation
 
-// newDarwinInstructionSet returns the frontier, homestead, byzantium,
-// contantinople, istanbul, petersburg, berlin, london, shanghai, curie, and darwin instructions.
-func newDarwinInstructionSet() JumpTable {
-	instructionSet := newCurieInstructionSet()
-	return instructionSet
-}
-
 // newCurieInstructionSet returns the frontier, homestead, byzantium,
 // contantinople, istanbul, petersburg, berlin, london, shanghai, and curie instructions.
 func newCurieInstructionSet() JumpTable {

core/vm/runtime/runtime.go

@@ -72,7 +72,7 @@ func setDefaults(cfg *Config) {
 			ShanghaiBlock:       new(big.Int),
 			BernoulliBlock:      new(big.Int),
 			CurieBlock:          new(big.Int),
-			DarwinTime:          new(uint64),
+			Morph203Time:        new(uint64),
 		}
 	}
 

eth/gasprice/gasprice_test.go

@@ -114,7 +114,7 @@ func newTestBackend(t *testing.T, londonBlock *big.Int, pending bool) *testBacke
 	config.ShanghaiBlock = londonBlock
 	config.BernoulliBlock = londonBlock
 	config.CurieBlock = londonBlock
-	config.DarwinTime = nil
+	config.Morph203Time = nil
 	engine := ethash.NewFaker()
 	db := rawdb.NewMemoryDatabase()
 	genesis, err := gspec.Commit(db)

params/config.go

@@ -281,7 +281,7 @@ var (
 		ShanghaiBlock:           big.NewInt(0),
 		BernoulliBlock:          big.NewInt(0),
 		CurieBlock:              big.NewInt(6330180),
-		DarwinTime:              nil,
+		Morph203Time:            nil,
 		TerminalTotalDifficulty: big.NewInt(0),
 		Morph: MorphConfig{
 			UseZktrie:                 true,
@@ -311,7 +311,7 @@ var (
 		ShanghaiBlock:           big.NewInt(0),
 		BernoulliBlock:          big.NewInt(0),
 		CurieBlock:              big.NewInt(0),
-		DarwinTime:              nil,
+		Morph203Time:            nil,
 		TerminalTotalDifficulty: big.NewInt(0),
 		Morph: MorphConfig{
 			UseZktrie:                 true,
@@ -347,7 +347,7 @@ var (
 		ShanghaiBlock:           big.NewInt(0),
 		BernoulliBlock:          big.NewInt(0),
 		CurieBlock:              big.NewInt(0),
-		DarwinTime:              new(uint64),
+		Morph203Time:            new(uint64),
 		TerminalTotalDifficulty: nil,
 		Ethash:                  new(EthashConfig),
 		Clique:                  nil,
@@ -383,7 +383,7 @@ var (
 		ShanghaiBlock:           big.NewInt(0),
 		BernoulliBlock:          big.NewInt(0),
 		CurieBlock:              big.NewInt(0),
-		DarwinTime:              new(uint64),
+		Morph203Time:            new(uint64),
 		TerminalTotalDifficulty: nil,
 		Ethash:                  nil,
 		Clique:                  &CliqueConfig{Period: 0, Epoch: 30000},
@@ -414,7 +414,7 @@ var (
 		ShanghaiBlock:           big.NewInt(0),
 		BernoulliBlock:          big.NewInt(0),
 		CurieBlock:              big.NewInt(0),
-		DarwinTime:              new(uint64),
+		Morph203Time:            new(uint64),
 		TerminalTotalDifficulty: nil,
 		Ethash:                  new(EthashConfig),
 		Clique:                  nil,
@@ -446,7 +446,7 @@ var (
 		ShanghaiBlock:           big.NewInt(0),
 		BernoulliBlock:          big.NewInt(0),
 		CurieBlock:              big.NewInt(0),
-		DarwinTime:              new(uint64),
+		Morph203Time:            new(uint64),
 		TerminalTotalDifficulty: nil,
 		Ethash:                  new(EthashConfig),
 		Clique:                  nil,
@@ -537,7 +537,7 @@ type ChainConfig struct {
 	ShanghaiBlock       *big.Int `json:"shanghaiBlock,omitempty"`       // Shanghai switch block (nil = no fork, 0 = already on shanghai)
 	BernoulliBlock      *big.Int `json:"bernoulliBlock,omitempty"`      // Bernoulli switch block (nil = no fork, 0 = already on bernoulli)
 	CurieBlock          *big.Int `json:"curieBlock,omitempty"`          // Curie switch block (nil = no fork, 0 = already on curie)
-	DarwinTime          *uint64  `json:"darwinTime,omitempty"`          // Darwin switch time (nil = no fork, 0 = already on darwin)
+	Morph203Time        *uint64  `json:"morph203Time,omitempty"`        // Morph203Time switch time (nil = no fork, 0 = already on morph203)
 
 	// TerminalTotalDifficulty is the amount of total difficulty reached by
 	// the network that triggers the consensus upgrade.
@@ -630,7 +630,7 @@ func (c *ChainConfig) String() string {
 	default:
 		engine = "unknown"
 	}
-	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v, Muir Glacier: %v, Berlin: %v, London: %v, Arrow Glacier: %v, Archimedes: %v, Shanghai: %v, Bernoulli: %v, Curie: %v, Darwin: %v, Engine: %v, Morph config: %v}",
+	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v, Muir Glacier: %v, Berlin: %v, London: %v, Arrow Glacier: %v, Archimedes: %v, Shanghai: %v, Bernoulli: %v, Curie: %v, Morph203: %v, Engine: %v, Morph config: %v}",
 		c.ChainID,
 		c.HomesteadBlock,
 		c.DAOForkBlock,
@@ -650,7 +650,7 @@ func (c *ChainConfig) String() string {
 		c.ShanghaiBlock,
 		c.BernoulliBlock,
 		c.CurieBlock,
-		c.DarwinTime,
+		c.Morph203Time,
 		engine,
 		c.Morph,
 	)
@@ -743,9 +743,9 @@ func (c *ChainConfig) IsCurie(num *big.Int) bool {
 	return isForked(c.CurieBlock, num)
 }
 
-// IsDarwin returns whether num is either equal to the Darwin fork block or greater.
-func (c *ChainConfig) IsDarwin(now uint64) bool {
-	return isForkedTime(now, c.DarwinTime)
+// IsMorph203 returns whether num is either equal to the Morph203 fork block or greater.
+func (c *ChainConfig) IsMorph203(now uint64) bool {
+	return isForkedTime(now, c.Morph203Time)
 }
 
 // IsTerminalPoWBlock returns whether the given block is the last block of PoW stage.
@@ -778,9 +778,10 @@ func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *Confi
 // to guarantee that forks can be implemented in a different order than on official networks
 func (c *ChainConfig) CheckConfigForkOrder() error {
 	type fork struct {
-		name     string
-		block    *big.Int
-		optional bool // if true, the fork may be nil and next fork is still allowed
+		name      string
+		block     *big.Int
+		timestamp *uint64 // forks after the merge are scheduled using timestamps
+		optional  bool    // if true, the fork may be nil and next fork is still allowed
 	}
 	var lastFork fork
 	for _, cur := range []fork{
@@ -801,22 +802,39 @@ func (c *ChainConfig) CheckConfigForkOrder() error {
 		{name: "shanghaiBlock", block: c.ShanghaiBlock, optional: true},
 		{name: "bernoulliBlock", block: c.BernoulliBlock, optional: true},
 		{name: "curieBlock", block: c.CurieBlock, optional: true},
+		{name: "morph203Time", timestamp: c.Morph203Time, optional: true},
 	} {
 		if lastFork.name != "" {
-			// Next one must be higher number
-			if lastFork.block == nil && cur.block != nil {
-				return fmt.Errorf("unsupported fork ordering: %v not enabled, but %v enabled at %v",
-					lastFork.name, cur.name, cur.block)
-			}
-			if lastFork.block != nil && cur.block != nil {
-				if lastFork.block.Cmp(cur.block) > 0 {
-					return fmt.Errorf("unsupported fork ordering: %v enabled at %v, but %v enabled at %v",
+			switch {
+			// Non-optional forks must all be present in the chain config up to the last defined fork
+			case lastFork.block == nil && lastFork.timestamp == nil && (cur.block != nil || cur.timestamp != nil):
+				if cur.block != nil {
+					return fmt.Errorf("unsupported fork ordering: %v not enabled, but %v enabled at block %v",
+						lastFork.name, cur.name, cur.block)
+				} else {
+					return fmt.Errorf("unsupported fork ordering: %v not enabled, but %v enabled at timestamp %v",
+						lastFork.name, cur.name, *cur.timestamp)
+				}
+
+			// Fork (whether defined by block or timestamp) must follow the fork definition sequence
+			case (lastFork.block != nil && cur.block != nil) || (lastFork.timestamp != nil && cur.timestamp != nil):
+				if lastFork.block != nil && lastFork.block.Cmp(cur.block) > 0 {
+					return fmt.Errorf("unsupported fork ordering: %v enabled at block %v, but %v enabled at block %v",
 						lastFork.name, lastFork.block, cur.name, cur.block)
+				} else if lastFork.timestamp != nil && *lastFork.timestamp > *cur.timestamp {
+					return fmt.Errorf("unsupported fork ordering: %v enabled at timestamp %v, but %v enabled at timestamp %v",
+						lastFork.name, *lastFork.timestamp, cur.name, *cur.timestamp)
+				}
+
+				// Timestamp based forks can follow block based ones, but not the other way around
+				if lastFork.timestamp != nil && cur.block != nil {
+					return fmt.Errorf("unsupported fork ordering: %v used timestamp ordering, but %v reverted to block ordering",
+						lastFork.name, cur.name)
 				}
 			}
 		}
 		// If it was optional and not set, then ignore it
-		if !cur.optional || cur.block != nil {
+		if !cur.optional || (cur.block != nil || cur.timestamp != nil) {
 			lastFork = cur
 		}
 	}
@@ -960,7 +978,7 @@ type Rules struct {
 	IsHomestead, IsEIP150, IsEIP155, IsEIP158               bool
 	IsByzantium, IsConstantinople, IsPetersburg, IsIstanbul bool
 	IsBerlin, IsLondon, IsArchimedes, IsShanghai            bool
-	IsBernoulli, IsCurie, IsDarwin                          bool
+	IsBernoulli, IsCurie, IsMorph203                        bool
 }
 
 // Rules ensures c's ChainID is not nil.
@@ -985,6 +1003,6 @@ func (c *ChainConfig) Rules(num *big.Int, time uint64) Rules {
 		IsShanghai:       c.IsShanghai(num),
 		IsBernoulli:      c.IsBernoulli(num),
 		IsCurie:          c.IsCurie(num),
-		IsDarwin:         c.IsDarwin(time),
+		IsMorph203:       c.IsMorph203(time),
 	}
 }

params/version.go

@@ -22,9 +22,9 @@ import (
 )
 
 const (
-	VersionMajor = 5         // Major version component of the current release
-	VersionMinor = 5         // Minor version component of the current release
-	VersionPatch = 1         // Patch version component of the current release
+	VersionMajor = 2         // Major version component of the current release
+	VersionMinor = 0         // Minor version component of the current release
+	VersionPatch = 3         // Patch version component of the current release
 	VersionMeta  = "mainnet" // Version metadata to append to the version string
 )