diff --git a/cmd/evm/internal/t8ntool/transaction.go b/cmd/evm/internal/t8ntool/transaction.go index 3409c0a3b..1bd370918 100644 --- a/cmd/evm/internal/t8ntool/transaction.go +++ b/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))); err != nil { + chainConfig.IsHomestead(new(big.Int)), chainConfig.IsIstanbul(new(big.Int)), chainConfig.IsShanghai(new(big.Int))); err != nil { r.Error = err results = append(results, r) continue @@ -171,6 +171,10 @@ func Transaction(ctx *cli.Context) error { case new(big.Int).Mul(tx.GasFeeCap(), new(big.Int).SetUint64(tx.Gas())).BitLen() > 256: r.Error = errors.New("gas * maxFeePerGas exceeds 256 bits") } + // Check whether the init code size has been exceeded. + if chainConfig.IsShanghai(new(big.Int)) && tx.To() == nil && len(tx.Data()) > params.MaxInitCodeSize { + r.Error = errors.New("max initcode size exceeded") + } results = append(results, r) } out, err := json.MarshalIndent(results, "", " ") diff --git a/core/bench_test.go b/core/bench_test.go index f7cf01460..7fc8a760f 100644 --- a/core/bench_test.go +++ b/core/bench_test.go @@ -83,7 +83,7 @@ func genValueTx(nbytes int) func(int, *BlockGen) { return func(i int, gen *BlockGen) { toaddr := common.Address{} data := make([]byte, nbytes) - gas, _ := IntrinsicGas(data, nil, false, false, false) + gas, _ := IntrinsicGas(data, nil, false, false, false, false) signer := types.MakeSigner(gen.config, big.NewInt(int64(i))) gasPrice := big.NewInt(0) if gen.header.BaseFee != nil { diff --git a/core/error.go b/core/error.go index 5b69c8dca..872ba8d36 100644 --- a/core/error.go +++ b/core/error.go @@ -63,6 +63,10 @@ var ( // have enough funds for transfer(topmost call only). ErrInsufficientFundsForTransfer = errors.New("insufficient funds for transfer") + // ErrMaxInitCodeSizeExceeded is returned if creation transaction provides the init code bigger + // than init code size limit. + ErrMaxInitCodeSizeExceeded = errors.New("max initcode size exceeded") + // ErrInsufficientFunds is returned if the total cost of executing a transaction // is higher than the balance of the user's account. ErrInsufficientFunds = errors.New("insufficient funds for gas * price + value") diff --git a/core/state_processor_test.go b/core/state_processor_test.go index 1df4a0e80..400ccd318 100644 --- a/core/state_processor_test.go +++ b/core/state_processor_test.go @@ -75,6 +75,17 @@ func TestStateProcessorErrors(t *testing.T) { }), signer, key1) return tx } + var mkDynamicCreationTx = func(nonce uint64, gasLimit uint64, gasTipCap, gasFeeCap *big.Int, data []byte) *types.Transaction { + tx, _ := types.SignTx(types.NewTx(&types.DynamicFeeTx{ + Nonce: nonce, + GasTipCap: gasTipCap, + GasFeeCap: gasFeeCap, + Gas: gasLimit, + Value: big.NewInt(0), + Data: data, + }), signer, key1) + return tx + } { // Tests against a 'recent' chain definition var ( db = rawdb.NewMemoryDatabase() @@ -294,6 +305,70 @@ func TestStateProcessorErrors(t *testing.T) { } } } + + // ErrMaxInitCodeSizeExceeded, for this we need extra Shanghai (EIP-3860) enabled. + { + var ( + db = rawdb.NewMemoryDatabase() + gspec = &Genesis{ + Config: ¶ms.ChainConfig{ + ChainID: big.NewInt(1), + HomesteadBlock: big.NewInt(0), + EIP150Block: big.NewInt(0), + EIP155Block: big.NewInt(0), + EIP158Block: big.NewInt(0), + ByzantiumBlock: big.NewInt(0), + ConstantinopleBlock: big.NewInt(0), + PetersburgBlock: big.NewInt(0), + IstanbulBlock: big.NewInt(0), + MuirGlacierBlock: big.NewInt(0), + BerlinBlock: big.NewInt(0), + LondonBlock: big.NewInt(0), + ArrowGlacierBlock: big.NewInt(0), + GrayGlacierBlock: big.NewInt(0), + MergeNetsplitBlock: big.NewInt(0), + ShanghaiTime: big.NewInt(0), + }, + Alloc: GenesisAlloc{ + common.HexToAddress("0x71562b71999873DB5b286dF957af199Ec94617F7"): GenesisAccount{ + Balance: big.NewInt(1000000000000000000), // 1 ether + Nonce: 0, + }, + }, + } + genesis = gspec.MustCommit(db) + blockchain, _ = NewBlockChain(db, nil, gspec, nil, ethash.NewFaker(), vm.Config{}, nil, nil) + tooBigInitCode = [params.MaxInitCodeSize + 1]byte{} + smallInitCode = [320]byte{} + ) + defer blockchain.Stop() + for i, tt := range []struct { + txs []*types.Transaction + want string + }{ + { // ErrMaxInitCodeSizeExceeded + txs: []*types.Transaction{ + mkDynamicCreationTx(0, 500000, common.Big0, misc.CalcBaseFee(config, genesis.Header()), tooBigInitCode[:]), + }, + want: "could not apply tx 0 [0x832b54a6c3359474a9f504b1003b2cc1b6fcaa18e4ef369eb45b5d40dad6378f]: max initcode size exceeded: code size 49153 limit 49152", + }, + { // ErrIntrinsicGas: Not enough gas to cover init code + txs: []*types.Transaction{ + mkDynamicCreationTx(0, 54299, common.Big0, misc.CalcBaseFee(config, genesis.Header()), smallInitCode[:]), + }, + want: "could not apply tx 0 [0x39b7436cb432d3662a25626474282c5c4c1a213326fd87e4e18a91477bae98b2]: intrinsic gas too low: have 54299, want 54300", + }, + } { + block := GenerateBadBlock(genesis, ethash.NewFaker(), tt.txs, gspec.Config) + _, err := blockchain.InsertChain(types.Blocks{block}) + if err == nil { + t.Fatal("block imported without errors") + } + if have, want := err.Error(), tt.want; have != want { + t.Errorf("test %d:\nhave \"%v\"\nwant \"%v\"\n", i, have, want) + } + } + } } // GenerateBadBlock constructs a "block" which contains the transactions. The transactions are not expected to be diff --git a/core/state_transition.go b/core/state_transition.go index fe94161e1..653c6b183 100644 --- a/core/state_transition.go +++ b/core/state_transition.go @@ -120,7 +120,7 @@ func (result *ExecutionResult) Revert() []byte { } // IntrinsicGas computes the 'intrinsic gas' for a message with the given data. -func IntrinsicGas(data []byte, accessList types.AccessList, isContractCreation bool, isHomestead, isEIP2028 bool) (uint64, error) { +func IntrinsicGas(data []byte, accessList types.AccessList, isContractCreation bool, isHomestead, isEIP2028 bool, isEIP3860 bool) (uint64, error) { // Set the starting gas for the raw transaction var gas uint64 if isContractCreation && isHomestead { @@ -128,8 +128,9 @@ func IntrinsicGas(data []byte, accessList types.AccessList, isContractCreation b } else { gas = params.TxGas } + dataLen := uint64(len(data)) // Bump the required gas by the amount of transactional data - if len(data) > 0 { + if dataLen > 0 { // Zero and non-zero bytes are priced differently var nz uint64 for _, byt := range data { @@ -147,11 +148,19 @@ func IntrinsicGas(data []byte, accessList types.AccessList, isContractCreation b } gas += nz * nonZeroGas - z := uint64(len(data)) - nz + z := dataLen - nz if (math.MaxUint64-gas)/params.TxDataZeroGas < z { return 0, ErrGasUintOverflow } gas += z * params.TxDataZeroGas + + if isContractCreation && isEIP3860 { + lenWords := toWordSize(dataLen) + if (math.MaxUint64-gas)/params.InitCodeWordGas < lenWords { + return 0, ErrGasUintOverflow + } + gas += lenWords * params.InitCodeWordGas + } } if accessList != nil { gas += uint64(len(accessList)) * params.TxAccessListAddressGas @@ -160,6 +169,15 @@ func IntrinsicGas(data []byte, accessList types.AccessList, isContractCreation b return gas, nil } +// toWordSize returns the ceiled word size required for init code payment calculation. +func toWordSize(size uint64) uint64 { + if size > math.MaxUint64-31 { + return math.MaxUint64/32 + 1 + } + + return (size + 31) / 32 +} + // NewStateTransition initialises and returns a new state transition object. func NewStateTransition(evm *vm.EVM, msg Message, gp *GasPool) *StateTransition { return &StateTransition{ @@ -305,7 +323,7 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) { ) // Check clauses 4-5, subtract intrinsic gas if everything is correct - gas, err := IntrinsicGas(st.data, st.msg.AccessList(), contractCreation, rules.IsHomestead, rules.IsIstanbul) + gas, err := IntrinsicGas(st.data, st.msg.AccessList(), contractCreation, rules.IsHomestead, rules.IsIstanbul, rules.IsShanghai) if err != nil { return nil, err } @@ -319,6 +337,11 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) { return nil, fmt.Errorf("%w: address %v", ErrInsufficientFundsForTransfer, msg.From().Hex()) } + // Check whether the init code size has been exceeded. + if rules.IsShanghai && contractCreation && len(st.data) > params.MaxInitCodeSize { + return nil, fmt.Errorf("%w: code size %v limit %v", ErrMaxInitCodeSizeExceeded, len(st.data), params.MaxInitCodeSize) + } + // Execute the preparatory steps for state transition which includes: // - prepare accessList(post-berlin) // - reset transient storage(eip 1153) diff --git a/core/txpool/txpool.go b/core/txpool/txpool.go index 8905140fd..dc6a71f07 100644 --- a/core/txpool/txpool.go +++ b/core/txpool/txpool.go @@ -245,6 +245,7 @@ type TxPool struct { istanbul bool // Fork indicator whether we are in the istanbul stage. eip2718 bool // Fork indicator whether we are using EIP-2718 type transactions. eip1559 bool // Fork indicator whether we are using EIP-1559 type transactions. + shanghai bool // Fork indicator whether we are in the Shanghai stage. currentState *state.StateDB // Current state in the blockchain head pendingNonces *noncer // Pending state tracking virtual nonces @@ -637,7 +638,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error { return core.ErrInsufficientFunds } // Ensure the transaction has more gas than the basic tx fee. - intrGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, true, pool.istanbul) + intrGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, true, pool.istanbul, pool.shanghai) if err != nil { return err } @@ -1306,6 +1307,7 @@ func (pool *TxPool) reset(oldHead, newHead *types.Header) { pool.istanbul = pool.chainconfig.IsIstanbul(next) pool.eip2718 = pool.chainconfig.IsBerlin(next) pool.eip1559 = pool.chainconfig.IsLondon(next) + pool.shanghai = pool.chainconfig.IsShanghai(big.NewInt(time.Now().Unix())) } // promoteExecutables moves transactions that have become processable from the diff --git a/core/vm/eips.go b/core/vm/eips.go index 26c450905..29ff27c55 100644 --- a/core/vm/eips.go +++ b/core/vm/eips.go @@ -27,6 +27,7 @@ import ( var activators = map[int]func(*JumpTable){ 3855: enable3855, + 3860: enable3860, 3529: enable3529, 3198: enable3198, 2929: enable2929, @@ -233,3 +234,10 @@ func opPush0(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]by scope.Stack.push(new(uint256.Int)) return nil, nil } + +// ebnable3860 enables "EIP-3860: Limit and meter initcode" +// https://eips.ethereum.org/EIPS/eip-3860 +func enable3860(jt *JumpTable) { + jt[CREATE].dynamicGas = gasCreateEip3860 + jt[CREATE2].dynamicGas = gasCreate2Eip3860 +} diff --git a/core/vm/errors.go b/core/vm/errors.go index 004f8ef1c..fbbf19e17 100644 --- a/core/vm/errors.go +++ b/core/vm/errors.go @@ -29,6 +29,7 @@ var ( ErrInsufficientBalance = errors.New("insufficient balance for transfer") ErrContractAddressCollision = errors.New("contract address collision") ErrExecutionReverted = errors.New("execution reverted") + ErrMaxInitCodeSizeExceeded = errors.New("max initcode size exceeded") ErrMaxCodeSizeExceeded = errors.New("max code size exceeded") ErrInvalidJump = errors.New("invalid jump destination") ErrWriteProtection = errors.New("write protection") diff --git a/core/vm/gas_table.go b/core/vm/gas_table.go index 57fb1a8d9..65d46b343 100644 --- a/core/vm/gas_table.go +++ b/core/vm/gas_table.go @@ -302,6 +302,39 @@ func gasCreate2(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memoryS return gas, nil } +func gasCreateEip3860(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) { + gas, err := memoryGasCost(mem, memorySize) + if err != nil { + return 0, err + } + size, overflow := stack.Back(2).Uint64WithOverflow() + if overflow || size > params.MaxInitCodeSize { + return 0, ErrGasUintOverflow + } + // Since size <= params.MaxInitCodeSize, these multiplication cannot overflow + moreGas := params.InitCodeWordGas * ((size + 31) / 32) + if gas, overflow = math.SafeAdd(gas, moreGas); overflow { + return 0, ErrGasUintOverflow + } + return gas, nil +} +func gasCreate2Eip3860(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) { + gas, err := memoryGasCost(mem, memorySize) + if err != nil { + return 0, err + } + size, overflow := stack.Back(2).Uint64WithOverflow() + if overflow || size > params.MaxInitCodeSize { + return 0, ErrGasUintOverflow + } + // Since size <= params.MaxInitCodeSize, these multiplication cannot overflow + moreGas := (params.InitCodeWordGas + params.Keccak256WordGas) * ((size + 31) / 32) + if gas, overflow = math.SafeAdd(gas, moreGas); overflow { + return 0, ErrGasUintOverflow + } + return gas, nil +} + func gasExpFrontier(evm *EVM, contract *Contract, stack *Stack, mem *Memory, memorySize uint64) (uint64, error) { expByteLen := uint64((stack.data[stack.len()-2].BitLen() + 7) / 8) diff --git a/core/vm/gas_table_test.go b/core/vm/gas_table_test.go index 6cd126c9b..c3d06e515 100644 --- a/core/vm/gas_table_test.go +++ b/core/vm/gas_table_test.go @@ -17,8 +17,10 @@ package vm import ( + "bytes" "math" "math/big" + "sort" "testing" "github.com/ethereum/go-ethereum/common" @@ -105,3 +107,73 @@ func TestEIP2200(t *testing.T) { } } } + +var createGasTests = []struct { + code string + eip3860 bool + gasUsed uint64 + minimumGas uint64 +}{ + // legacy create(0, 0, 0xc000) without 3860 used + {"0x61C00060006000f0" + "600052" + "60206000F3", false, 41237, 41237}, + // legacy create(0, 0, 0xc000) _with_ 3860 + {"0x61C00060006000f0" + "600052" + "60206000F3", true, 44309, 44309}, + // create2(0, 0, 0xc001, 0) without 3860 + {"0x600061C00160006000f5" + "600052" + "60206000F3", false, 50471, 50471}, + // create2(0, 0, 0xc001, 0) (too large), with 3860 + {"0x600061C00160006000f5" + "600052" + "60206000F3", true, 32012, 100_000}, + // create2(0, 0, 0xc000, 0) + // This case is trying to deploy code at (within) the limit + {"0x600061C00060006000f5" + "600052" + "60206000F3", true, 53528, 53528}, + // create2(0, 0, 0xc001, 0) + // This case is trying to deploy code exceeding the limit + {"0x600061C00160006000f5" + "600052" + "60206000F3", true, 32024, 100000}, +} + +func TestCreateGas(t *testing.T) { + for i, tt := range createGasTests { + var gasUsed = uint64(0) + doCheck := func(testGas int) bool { + address := common.BytesToAddress([]byte("contract")) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()), nil) + statedb.CreateAccount(address) + statedb.SetCode(address, hexutil.MustDecode(tt.code)) + statedb.Finalise(true) + vmctx := BlockContext{ + CanTransfer: func(StateDB, common.Address, *big.Int) bool { return true }, + Transfer: func(StateDB, common.Address, common.Address, *big.Int) {}, + BlockNumber: big.NewInt(0), + } + config := Config{} + if tt.eip3860 { + config.ExtraEips = []int{3860} + } + + vmenv := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, config) + var startGas = uint64(testGas) + ret, gas, err := vmenv.Call(AccountRef(common.Address{}), address, nil, startGas, new(big.Int)) + if err != nil { + return false + } + gasUsed = startGas - gas + if len(ret) != 32 { + t.Fatalf("test %d: expected 32 bytes returned, have %d", i, len(ret)) + } + if bytes.Equal(ret, make([]byte, 32)) { + // Failure + return false + } + return true + } + minGas := sort.Search(100_000, doCheck) + if uint64(minGas) != tt.minimumGas { + t.Fatalf("test %d: min gas error, want %d, have %d", i, tt.minimumGas, minGas) + } + // If the deployment succeeded, we also check the gas used + if minGas < 100_000 { + if gasUsed != tt.gasUsed { + t.Errorf("test %d: gas used mismatch: have %v, want %v", i, gasUsed, tt.gasUsed) + } + } + } +} diff --git a/core/vm/instructions.go b/core/vm/instructions.go index 22c72c10a..8fa2fc57e 100644 --- a/core/vm/instructions.go +++ b/core/vm/instructions.go @@ -633,7 +633,6 @@ func opCreate2(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([] input = scope.Memory.GetCopy(int64(offset.Uint64()), int64(size.Uint64())) gas = scope.Contract.Gas ) - // Apply EIP150 gas -= gas / 64 scope.Contract.UseGas(gas) diff --git a/core/vm/interpreter.go b/core/vm/interpreter.go index c99e54b76..7b040aac9 100644 --- a/core/vm/interpreter.go +++ b/core/vm/interpreter.go @@ -60,6 +60,8 @@ func NewEVMInterpreter(evm *EVM, cfg Config) *EVMInterpreter { // If jump table was not initialised we set the default one. if cfg.JumpTable == nil { switch { + case evm.chainRules.IsShanghai: + cfg.JumpTable = &shanghaiInstructionSet case evm.chainRules.IsMerge: cfg.JumpTable = &mergeInstructionSet case evm.chainRules.IsLondon: diff --git a/core/vm/jump_table.go b/core/vm/jump_table.go index 7cbcc56c5..240f3734a 100644 --- a/core/vm/jump_table.go +++ b/core/vm/jump_table.go @@ -55,6 +55,7 @@ var ( berlinInstructionSet = newBerlinInstructionSet() londonInstructionSet = newLondonInstructionSet() mergeInstructionSet = newMergeInstructionSet() + shanghaiInstructionSet = newShanghaiInstructionSet() ) // JumpTable contains the EVM opcodes supported at a given fork. @@ -78,6 +79,12 @@ func validate(jt JumpTable) JumpTable { return jt } +func newShanghaiInstructionSet() JumpTable { + instructionSet := newMergeInstructionSet() + enable3860(&instructionSet) + return validate(instructionSet) +} + func newMergeInstructionSet() JumpTable { instructionSet := newLondonInstructionSet() instructionSet[PREVRANDAO] = &operation{ diff --git a/light/txpool.go b/light/txpool.go index 3e3572faa..e12f6ef94 100644 --- a/light/txpool.go +++ b/light/txpool.go @@ -70,6 +70,7 @@ type TxPool struct { istanbul bool // Fork indicator whether we are in the istanbul stage. eip2718 bool // Fork indicator whether we are in the eip2718 stage. + shanghai bool // Fork indicator whether we are in the shanghai stage. } // TxRelayBackend provides an interface to the mechanism that forwards transactions to the @@ -317,6 +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(big.NewInt(time.Now().Unix())) } // Stop stops the light transaction pool @@ -384,7 +386,7 @@ func (pool *TxPool) validateTx(ctx context.Context, tx *types.Transaction) error } // Should supply enough intrinsic gas - gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, true, pool.istanbul) + gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, true, pool.istanbul, pool.shanghai) if err != nil { return err } diff --git a/params/protocol_params.go b/params/protocol_params.go index b0037fd47..bb703d0b7 100644 --- a/params/protocol_params.go +++ b/params/protocol_params.go @@ -38,6 +38,7 @@ const ( Keccak256Gas uint64 = 30 // Once per KECCAK256 operation. Keccak256WordGas uint64 = 6 // Once per word of the KECCAK256 operation's data. + InitCodeWordGas uint64 = 2 // Once per word of the init code when creating a contract. SstoreSetGas uint64 = 20000 // Once per SSTORE operation. SstoreResetGas uint64 = 5000 // Once per SSTORE operation if the zeroness changes from zero. @@ -123,7 +124,8 @@ const ( DefaultElasticityMultiplier = 2 // Bounds the maximum gas limit an EIP-1559 block may have. InitialBaseFee = 1000000000 // Initial base fee for EIP-1559 blocks. - MaxCodeSize = 24576 // Maximum bytecode to permit for a contract + MaxCodeSize = 24576 // Maximum bytecode to permit for a contract + MaxInitCodeSize = 2 * MaxCodeSize // Maximum initcode to permit in a creation transaction and create instructions // Precompiled contract gas prices diff --git a/tests/transaction_test_util.go b/tests/transaction_test_util.go index 82ee01de1..391aa5758 100644 --- a/tests/transaction_test_util.go +++ b/tests/transaction_test_util.go @@ -55,7 +55,7 @@ func (tt *TransactionTest) Run(config *params.ChainConfig) error { return nil, nil, err } // Intrinsic gas - requiredGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, isHomestead, isIstanbul) + requiredGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, isHomestead, isIstanbul, false) if err != nil { return nil, nil, err }