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core, internal: support various eth_call invocations post 1559
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@karalabe
karalabe committed Jun 10, 2021
1 parent 7a00378 commit f68a68a
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Showing 9 changed files with 62 additions and 51 deletions.
40 changes: 21 additions & 19 deletions core/state_transition.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -221,23 +221,26 @@ func (st *StateTransition) preCheck() error {
}
// Make sure that transaction gasFeeCap is greater than the baseFee (post london)
if st.evm.ChainConfig().IsLondon(st.evm.Context.BlockNumber) {
if l := st.gasFeeCap.BitLen(); l > 256 {
return fmt.Errorf("%w: address %v, maxFeePerGas bit length: %d", ErrFeeCapVeryHigh,
st.msg.From().Hex(), l)
}
if l := st.gasTipCap.BitLen(); l > 256 {
return fmt.Errorf("%w: address %v, maxPriorityFeePerGas bit length: %d", ErrTipVeryHigh,
st.msg.From().Hex(), l)
}
if st.gasFeeCap.Cmp(st.gasTipCap) < 0 {
return fmt.Errorf("%w: address %v, maxPriorityFeePerGas: %s, maxFeePerGas: %s", ErrTipAboveFeeCap,
st.msg.From().Hex(), st.gasTipCap, st.gasFeeCap)
}
// This will panic if baseFee is nil, but basefee presence is verified
// as part of header validation.
if st.gasFeeCap.Cmp(st.evm.Context.BaseFee) < 0 {
return fmt.Errorf("%w: address %v, maxFeePerGas: %s baseFee: %s", ErrFeeCapTooLow,
st.msg.From().Hex(), st.gasFeeCap, st.evm.Context.BaseFee)
// Skip the checks if gas fields are zero and baseFee was explicitly disabled (eth_call)
if !st.evm.Config.NoBaseFee || st.gasFeeCap.BitLen() > 0 || st.gasTipCap.BitLen() > 0 {
if l := st.gasFeeCap.BitLen(); l > 256 {
return fmt.Errorf("%w: address %v, maxFeePerGas bit length: %d", ErrFeeCapVeryHigh,
st.msg.From().Hex(), l)
}
if l := st.gasTipCap.BitLen(); l > 256 {
return fmt.Errorf("%w: address %v, maxPriorityFeePerGas bit length: %d", ErrTipVeryHigh,
st.msg.From().Hex(), l)
}
if st.gasFeeCap.Cmp(st.gasTipCap) < 0 {
return fmt.Errorf("%w: address %v, maxPriorityFeePerGas: %s, maxFeePerGas: %s", ErrTipAboveFeeCap,
st.msg.From().Hex(), st.gasTipCap, st.gasFeeCap)
}
// This will panic if baseFee is nil, but basefee presence is verified
// as part of header validation.
if st.gasFeeCap.Cmp(st.evm.Context.BaseFee) < 0 {
return fmt.Errorf("%w: address %v, maxFeePerGas: %s baseFee: %s", ErrFeeCapTooLow,
st.msg.From().Hex(), st.gasFeeCap, st.evm.Context.BaseFee)
}
}
}
return st.buyGas()
Expand Down Expand Up @@ -275,7 +278,6 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
sender := vm.AccountRef(msg.From())
homestead := st.evm.ChainConfig().IsHomestead(st.evm.Context.BlockNumber)
istanbul := st.evm.ChainConfig().IsIstanbul(st.evm.Context.BlockNumber)
eip3529 := st.evm.ChainConfig().IsLondon(st.evm.Context.BlockNumber)
contractCreation := msg.To() == nil

// Check clauses 4-5, subtract intrinsic gas if everything is correct
Expand Down Expand Up @@ -308,7 +310,7 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
st.state.SetNonce(msg.From(), st.state.GetNonce(sender.Address())+1)
ret, st.gas, vmerr = st.evm.Call(sender, st.to(), st.data, st.gas, st.value)
}
if !eip3529 {
if !st.evm.ChainConfig().IsLondon(st.evm.Context.BlockNumber) {
// Before EIP-3529: refunds were capped to gasUsed / 2
st.refundGas(params.RefundQuotient)
} else {
Expand Down
38 changes: 19 additions & 19 deletions core/vm/evm.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -128,7 +128,7 @@ type EVM struct {
chainRules params.Rules
// virtual machine configuration options used to initialise the
// evm.
vmConfig Config
Config Config
// global (to this context) ethereum virtual machine
// used throughout the execution of the tx.
interpreters []Interpreter
Expand All @@ -144,12 +144,12 @@ type EVM struct {

// NewEVM returns a new EVM. The returned EVM is not thread safe and should
// only ever be used *once*.
func NewEVM(blockCtx BlockContext, txCtx TxContext, statedb StateDB, chainConfig *params.ChainConfig, vmConfig Config) *EVM {
func NewEVM(blockCtx BlockContext, txCtx TxContext, statedb StateDB, chainConfig *params.ChainConfig, config Config) *EVM {
evm := &EVM{
Context: blockCtx,
TxContext: txCtx,
StateDB: statedb,
vmConfig: vmConfig,
Config: config,
chainConfig: chainConfig,
chainRules: chainConfig.Rules(blockCtx.BlockNumber),
interpreters: make([]Interpreter, 0, 1),
Expand All @@ -173,7 +173,7 @@ func NewEVM(blockCtx BlockContext, txCtx TxContext, statedb StateDB, chainConfig

// vmConfig.EVMInterpreter will be used by EVM-C, it won't be checked here
// as we always want to have the built-in EVM as the failover option.
evm.interpreters = append(evm.interpreters, NewEVMInterpreter(evm, vmConfig))
evm.interpreters = append(evm.interpreters, NewEVMInterpreter(evm, config))
evm.interpreter = evm.interpreters[0]

return evm
Expand Down Expand Up @@ -207,7 +207,7 @@ func (evm *EVM) Interpreter() Interpreter {
// the necessary steps to create accounts and reverses the state in case of an
// execution error or failed value transfer.
func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas uint64, value *big.Int) (ret []byte, leftOverGas uint64, err error) {
if evm.vmConfig.NoRecursion && evm.depth > 0 {
if evm.Config.NoRecursion && evm.depth > 0 {
return nil, gas, nil
}
// Fail if we're trying to execute above the call depth limit
Expand All @@ -224,9 +224,9 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
if !evm.StateDB.Exist(addr) {
if !isPrecompile && evm.chainRules.IsEIP158 && value.Sign() == 0 {
// Calling a non existing account, don't do anything, but ping the tracer
if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value)
evm.vmConfig.Tracer.CaptureEnd(ret, 0, 0, nil)
if evm.Config.Debug && evm.depth == 0 {
evm.Config.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value)
evm.Config.Tracer.CaptureEnd(ret, 0, 0, nil)
}
return nil, gas, nil
}
Expand All @@ -235,10 +235,10 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
evm.Context.Transfer(evm.StateDB, caller.Address(), addr, value)

// Capture the tracer start/end events in debug mode
if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value)
if evm.Config.Debug && evm.depth == 0 {
evm.Config.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value)
defer func(startGas uint64, startTime time.Time) { // Lazy evaluation of the parameters
evm.vmConfig.Tracer.CaptureEnd(ret, startGas-gas, time.Since(startTime), err)
evm.Config.Tracer.CaptureEnd(ret, startGas-gas, time.Since(startTime), err)
}(gas, time.Now())
}

Expand Down Expand Up @@ -283,7 +283,7 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
// CallCode differs from Call in the sense that it executes the given address'
// code with the caller as context.
func (evm *EVM) CallCode(caller ContractRef, addr common.Address, input []byte, gas uint64, value *big.Int) (ret []byte, leftOverGas uint64, err error) {
if evm.vmConfig.NoRecursion && evm.depth > 0 {
if evm.Config.NoRecursion && evm.depth > 0 {
return nil, gas, nil
}
// Fail if we're trying to execute above the call depth limit
Expand Down Expand Up @@ -326,7 +326,7 @@ func (evm *EVM) CallCode(caller ContractRef, addr common.Address, input []byte,
// DelegateCall differs from CallCode in the sense that it executes the given address'
// code with the caller as context and the caller is set to the caller of the caller.
func (evm *EVM) DelegateCall(caller ContractRef, addr common.Address, input []byte, gas uint64) (ret []byte, leftOverGas uint64, err error) {
if evm.vmConfig.NoRecursion && evm.depth > 0 {
if evm.Config.NoRecursion && evm.depth > 0 {
return nil, gas, nil
}
// Fail if we're trying to execute above the call depth limit
Expand Down Expand Up @@ -360,7 +360,7 @@ func (evm *EVM) DelegateCall(caller ContractRef, addr common.Address, input []by
// Opcodes that attempt to perform such modifications will result in exceptions
// instead of performing the modifications.
func (evm *EVM) StaticCall(caller ContractRef, addr common.Address, input []byte, gas uint64) (ret []byte, leftOverGas uint64, err error) {
if evm.vmConfig.NoRecursion && evm.depth > 0 {
if evm.Config.NoRecursion && evm.depth > 0 {
return nil, gas, nil
}
// Fail if we're trying to execute above the call depth limit
Expand Down Expand Up @@ -453,12 +453,12 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
contract := NewContract(caller, AccountRef(address), value, gas)
contract.SetCodeOptionalHash(&address, codeAndHash)

if evm.vmConfig.NoRecursion && evm.depth > 0 {
if evm.Config.NoRecursion && evm.depth > 0 {
return nil, address, gas, nil
}

if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), address, true, codeAndHash.code, gas, value)
if evm.Config.Debug && evm.depth == 0 {
evm.Config.Tracer.CaptureStart(evm, caller.Address(), address, true, codeAndHash.code, gas, value)
}
start := time.Now()

Expand Down Expand Up @@ -497,8 +497,8 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
}
}

if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err)
if evm.Config.Debug && evm.depth == 0 {
evm.Config.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err)
}
return ret, address, contract.Gas, err
}
Expand Down
2 changes: 1 addition & 1 deletion core/vm/instructions.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -244,7 +244,7 @@ func opSha3(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byt
interpreter.hasher.Read(interpreter.hasherBuf[:])

evm := interpreter.evm
if evm.vmConfig.EnablePreimageRecording {
if evm.Config.EnablePreimageRecording {
evm.StateDB.AddPreimage(interpreter.hasherBuf, data)
}

Expand Down
10 changes: 5 additions & 5 deletions core/vm/instructions_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -194,7 +194,7 @@ func TestAddMod(t *testing.T) {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
evmInterpreter = NewEVMInterpreter(env, env.Config)
pc = uint64(0)
)
tests := []struct {
Expand Down Expand Up @@ -283,7 +283,7 @@ func opBenchmark(bench *testing.B, op executionFunc, args ...string) {
var (
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
evmInterpreter = NewEVMInterpreter(env, env.Config)
)

env.interpreter = evmInterpreter
Expand Down Expand Up @@ -518,7 +518,7 @@ func TestOpMstore(t *testing.T) {
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
evmInterpreter = NewEVMInterpreter(env, env.Config)
)

env.interpreter = evmInterpreter
Expand All @@ -542,7 +542,7 @@ func BenchmarkOpMstore(bench *testing.B) {
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
evmInterpreter = NewEVMInterpreter(env, env.Config)
)

env.interpreter = evmInterpreter
Expand All @@ -563,7 +563,7 @@ func BenchmarkOpSHA3(bench *testing.B) {
env = NewEVM(BlockContext{}, TxContext{}, nil, params.TestChainConfig, Config{})
stack = newstack()
mem = NewMemory()
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
evmInterpreter = NewEVMInterpreter(env, env.Config)
)
env.interpreter = evmInterpreter
mem.Resize(32)
Expand Down
1 change: 1 addition & 0 deletions core/vm/interpreter.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ type Config struct {
Debug bool // Enables debugging
Tracer Tracer // Opcode logger
NoRecursion bool // Disables call, callcode, delegate call and create
NoBaseFee bool // Forces the EIP-1559 baseFee to 0 (needed for 0 price calls)
EnablePreimageRecording bool // Enables recording of SHA3/keccak preimages

JumpTable [256]*operation // EVM instruction table, automatically populated if unset
Expand Down
2 changes: 1 addition & 1 deletion internal/ethapi/api.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -849,7 +849,7 @@ func DoCall(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash
if err != nil {
return nil, err
}
evm, vmError, err := b.GetEVM(ctx, msg, state, header, nil)
evm, vmError, err := b.GetEVM(ctx, msg, state, header, &vm.Config{NoBaseFee: true})
if err != nil {
return nil, err
}
Expand Down
12 changes: 10 additions & 2 deletions internal/ethapi/transaction_args.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -158,7 +158,9 @@ func (args *TransactionArgs) setDefaults(ctx context.Context, b Backend) error {
return nil
}

// ToMessage converts TransactionArgs to the Message type used by the core evm
// ToMessage converts th transaction arguments to the Message type used by the
// core evm. This method is used in calls and traces that do not require a real
// live transaction.
func (args *TransactionArgs) ToMessage(globalGasCap uint64, baseFee *big.Int) (types.Message, error) {
// Reject invalid combinations of pre- and post-1559 fee styles
if args.GasPrice != nil && (args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil) {
Expand Down Expand Up @@ -194,9 +196,11 @@ func (args *TransactionArgs) ToMessage(globalGasCap uint64, baseFee *big.Int) (t
} else {
// A basefee is provided, necessitating 1559-type execution
if args.GasPrice != nil {
// User specified the legacy gas field, convert to 1559 gas typing
gasPrice = args.GasPrice.ToInt()
gasFeeCap, gasTipCap = gasPrice, gasPrice
} else {
// User specified 1559 gas feilds (or none), use those
gasFeeCap = new(big.Int)
if args.MaxFeePerGas != nil {
gasFeeCap = args.MaxFeePerGas.ToInt()
Expand All @@ -205,7 +209,11 @@ func (args *TransactionArgs) ToMessage(globalGasCap uint64, baseFee *big.Int) (t
if args.MaxPriorityFeePerGas != nil {
gasTipCap = args.MaxPriorityFeePerGas.ToInt()
}
gasPrice = math.BigMin(new(big.Int).Add(gasTipCap, baseFee), gasFeeCap)
// Backfill the legacy gasPrice for EVM execution, unless we're all zeroes
gasPrice = new(big.Int)
if gasFeeCap.BitLen() > 0 || gasTipCap.BitLen() > 0 {
gasPrice = math.BigMin(new(big.Int).Add(gasTipCap, baseFee), gasFeeCap)
}
}
}
value := new(big.Int)
Expand Down
6 changes: 3 additions & 3 deletions internal/jsre/deps/bindata.go
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2 changes: 1 addition & 1 deletion internal/jsre/deps/web3.js
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