mirror
/
go-ethereum
mirror of https://github.com/ethereum/go-ethereum
2
0
Fork 1
Code Issues Releases Wiki Activity

core/vm: set basefee to 0 internally on eth_call (#28470)

Browse Source 
* core/vm: set basefee to 0 internally on eth_call

* core: nicer 0-basefee, make it work for blob fees too

* internal/ethapi: make tests a bit more complex

* core: fix blob fee checker

* core: make code a bit more readable

* core: fix some test error strings

* core/vm: Get rid of weird comment

* core: dict wrong typo
pull/28487/head
Péter Szilágyi 1 year ago committed by GitHub
parent 4d9f3cd5d7
commit 470dba8fc1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 82 additions and 26 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 6
      core/evm.go
  2. 9
      core/state_processor_test.go
  3. 22
      core/state_transition.go
  4. 26
      core/vm/evm.go
  5. 1
      core/vm/runtime/env.go
  6. 3
      core/vm/runtime/runtime.go
  7. 41
      internal/ethapi/api_test.go

6
core/evm.go
Unescape View File

@ -77,11 +77,15 @@ func NewEVMBlockContext(header *types.Header, chain ChainContext, author *common
// NewEVMTxContext creates a new transaction context for a single transaction.
func NewEVMTxContext(msg *Message) vm.TxContext {
return vm.TxContext{
ctx := vm.TxContext{
Origin: msg.From,
GasPrice: new(big.Int).Set(msg.GasPrice),
BlobHashes: msg.BlobHashes,
}
if msg.BlobGasFeeCap != nil {
ctx.BlobFeeCap = new(big.Int).Set(msg.BlobGasFeeCap)
}
return ctx
}
// GetHashFn returns a GetHashFunc which retrieves header hashes by number

9
core/state_processor_test.go
Unescape View File

@ -95,7 +95,7 @@ func TestStateProcessorErrors(t *testing.T) {
}), signer, key1)
return tx
}
var mkBlobTx = func(nonce uint64, to common.Address, gasLimit uint64, gasTipCap, gasFeeCap *big.Int, hashes []common.Hash) *types.Transaction {
var mkBlobTx = func(nonce uint64, to common.Address, gasLimit uint64, gasTipCap, gasFeeCap, blobGasFeeCap *big.Int, hashes []common.Hash) *types.Transaction {
tx, err := types.SignTx(types.NewTx(&types.BlobTx{
Nonce: nonce,
GasTipCap: uint256.MustFromBig(gasTipCap),
@ -103,6 +103,7 @@ func TestStateProcessorErrors(t *testing.T) {
Gas: gasLimit,
To: to,
BlobHashes: hashes,
BlobFeeCap: uint256.MustFromBig(blobGasFeeCap),
Value: new(uint256.Int),
}), signer, key1)
if err != nil {
@ -196,7 +197,7 @@ func TestStateProcessorErrors(t *testing.T) {
txs: []*types.Transaction{
mkDynamicTx(0, common.Address{}, params.TxGas, big.NewInt(0), big.NewInt(0)),
},
want: "could not apply tx 0 [0xc4ab868fef0c82ae0387b742aee87907f2d0fc528fc6ea0a021459fb0fc4a4a8]: max fee per gas less than block base fee: address 0x71562b71999873DB5b286dF957af199Ec94617F7, maxFeePerGas: 0 baseFee: 875000000",
want: "could not apply tx 0 [0xc4ab868fef0c82ae0387b742aee87907f2d0fc528fc6ea0a021459fb0fc4a4a8]: max fee per gas less than block base fee: address 0x71562b71999873DB5b286dF957af199Ec94617F7, maxFeePerGas: 0, baseFee: 875000000",
},
{ // ErrTipVeryHigh
txs: []*types.Transaction{
@ -247,9 +248,9 @@ func TestStateProcessorErrors(t *testing.T) {
},
{ // ErrBlobFeeCapTooLow
txs: []*types.Transaction{
mkBlobTx(0, common.Address{}, params.TxGas, big.NewInt(1), big.NewInt(1), []common.Hash{(common.Hash{1})}),
mkBlobTx(0, common.Address{}, params.TxGas, big.NewInt(1), big.NewInt(1), big.NewInt(0), []common.Hash{(common.Hash{1})}),
},
want: "could not apply tx 0 [0x6c11015985ce82db691d7b2d017acda296db88b811c3c60dc71449c76256c716]: max fee per gas less than block base fee: address 0x71562b71999873DB5b286dF957af199Ec94617F7, maxFeePerGas: 1 baseFee: 875000000",
want: "could not apply tx 0 [0x6c11015985ce82db691d7b2d017acda296db88b811c3c60dc71449c76256c716]: max fee per gas less than block base fee: address 0x71562b71999873DB5b286dF957af199Ec94617F7, maxFeePerGas: 1, baseFee: 875000000",
},
} {
block := GenerateBadBlock(gspec.ToBlock(), beacon.New(ethash.NewFaker()), tt.txs, gspec.Config)

22
core/state_transition.go
Unescape View File

@ -287,11 +287,11 @@ func (st *StateTransition) preCheck() error {
msg.From.Hex(), codeHash)
}
}
// Make sure that transaction gasFeeCap is greater than the baseFee (post london)
if st.evm.ChainConfig().IsLondon(st.evm.Context.BlockNumber) {
// Skip the checks if gas fields are zero and baseFee was explicitly disabled (eth_call)
if !st.evm.Config.NoBaseFee || msg.GasFeeCap.BitLen() > 0 || msg.GasTipCap.BitLen() > 0 {
skipCheck := st.evm.Config.NoBaseFee && msg.GasFeeCap.BitLen() == 0 && msg.GasTipCap.BitLen() == 0
if !skipCheck {
if l := msg.GasFeeCap.BitLen(); l > 256 {
return fmt.Errorf("%w: address %v, maxFeePerGas bit length: %d", ErrFeeCapVeryHigh,
msg.From.Hex(), l)
@ -307,7 +307,7 @@ func (st *StateTransition) preCheck() error {
// This will panic if baseFee is nil, but basefee presence is verified
// as part of header validation.
if msg.GasFeeCap.Cmp(st.evm.Context.BaseFee) < 0 {
return fmt.Errorf("%w: address %v, maxFeePerGas: %s baseFee: %s", ErrFeeCapTooLow,
return fmt.Errorf("%w: address %v, maxFeePerGas: %s, baseFee: %s", ErrFeeCapTooLow,
msg.From.Hex(), msg.GasFeeCap, st.evm.Context.BaseFee)
}
}
@ -324,17 +324,21 @@ func (st *StateTransition) preCheck() error {
}
}
}
// Check that the user is paying at least the current blob fee
if st.evm.ChainConfig().IsCancun(st.evm.Context.BlockNumber, st.evm.Context.Time) {
if st.blobGasUsed() > 0 {
// Check that the user is paying at least the current blob fee
blobFee := st.evm.Context.BlobBaseFee
if st.msg.BlobGasFeeCap.Cmp(blobFee) < 0 {
return fmt.Errorf("%w: address %v have %v want %v", ErrBlobFeeCapTooLow, st.msg.From.Hex(), st.msg.BlobGasFeeCap, blobFee)
// Skip the checks if gas fields are zero and blobBaseFee was explicitly disabled (eth_call)
skipCheck := st.evm.Config.NoBaseFee && msg.BlobGasFeeCap.BitLen() == 0
if !skipCheck {
// This will panic if blobBaseFee is nil, but blobBaseFee presence
// is verified as part of header validation.
if msg.BlobGasFeeCap.Cmp(st.evm.Context.BlobBaseFee) < 0 {
return fmt.Errorf("%w: address %v blobGasFeeCap: %v, blobBaseFee: %v", ErrBlobFeeCapTooLow,
msg.From.Hex(), msg.BlobGasFeeCap, st.evm.Context.BlobBaseFee)
}
}
}
}
return st.buyGas()
}

26
core/vm/evm.go
Unescape View File

@ -72,8 +72,8 @@ type BlockContext struct {
BlockNumber *big.Int // Provides information for NUMBER
Time uint64 // Provides information for TIME
Difficulty *big.Int // Provides information for DIFFICULTY
BaseFee *big.Int // Provides information for BASEFEE
BlobBaseFee *big.Int // Provides information for BLOBBASEFEE
BaseFee *big.Int // Provides information for BASEFEE (0 if vm runs with NoBaseFee flag and 0 gas price)
BlobBaseFee *big.Int // Provides information for BLOBBASEFEE (0 if vm runs with NoBaseFee flag and 0 blob gas price)
Random *common.Hash // Provides information for PREVRANDAO
}
@ -82,8 +82,9 @@ type BlockContext struct {
type TxContext struct {
// Message information
Origin common.Address // Provides information for ORIGIN
GasPrice *big.Int // Provides information for GASPRICE
GasPrice *big.Int // Provides information for GASPRICE (and is used to zero the basefee if NoBaseFee is set)
BlobHashes []common.Hash // Provides information for BLOBHASH
BlobFeeCap *big.Int // Is used to zero the blobbasefee if NoBaseFee is set
}
// EVM is the Ethereum Virtual Machine base object and provides
@ -125,6 +126,17 @@ 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, config Config) *EVM {
// If basefee tracking is disabled (eth_call, eth_estimateGas, etc), and no
// gas prices were specified, lower the basefee to 0 to avoid breaking EVM
// invariants (basefee < feecap)
if config.NoBaseFee {
if txCtx.GasPrice.BitLen() == 0 {
blockCtx.BaseFee = new(big.Int)
}
if txCtx.BlobFeeCap != nil && txCtx.BlobFeeCap.BitLen() == 0 {
blockCtx.BlobBaseFee = new(big.Int)
}
}
evm := &EVM{
Context: blockCtx,
TxContext: txCtx,
@ -160,14 +172,6 @@ func (evm *EVM) Interpreter() *EVMInterpreter {
return evm.interpreter
}
// SetBlockContext updates the block context of the EVM.
func (evm *EVM) SetBlockContext(blockCtx BlockContext) {
evm.Context = blockCtx
num := blockCtx.BlockNumber
timestamp := blockCtx.Time
evm.chainRules = evm.chainConfig.Rules(num, blockCtx.Random != nil, timestamp)
}
// Call executes the contract associated with the addr with the given input as
// parameters. It also handles any necessary value transfer required and takes
// the necessary steps to create accounts and reverses the state in case of an

1
core/vm/runtime/env.go
Unescape View File

@ -26,6 +26,7 @@ func NewEnv(cfg *Config) *vm.EVM {
Origin: cfg.Origin,
GasPrice: cfg.GasPrice,
BlobHashes: cfg.BlobHashes,
BlobFeeCap: cfg.BlobFeeCap,
}
blockContext := vm.BlockContext{
CanTransfer: core.CanTransfer,

3
core/vm/runtime/runtime.go
Unescape View File

@ -46,6 +46,7 @@ type Config struct {
BaseFee *big.Int
BlobBaseFee *big.Int
BlobHashes []common.Hash
BlobFeeCap *big.Int
Random *common.Hash
State *state.StateDB
@ -97,7 +98,7 @@ func setDefaults(cfg *Config) {
cfg.BaseFee = big.NewInt(params.InitialBaseFee)
}
if cfg.BlobBaseFee == nil {
cfg.BlobBaseFee = new(big.Int)
cfg.BlobBaseFee = big.NewInt(params.BlobTxMinBlobGasprice)
}
}

41
internal/ethapi/api_test.go
Unescape View File

@ -678,6 +678,47 @@ func TestEstimateGas(t *testing.T) {
},
expectErr: core.ErrInsufficientFunds,
},
// Test for a bug where the gas price was set to zero but the basefee non-zero
//
// contract BasefeeChecker {
// constructor() {
// require(tx.gasprice >= block.basefee);
// if (tx.gasprice > 0) {
// require(block.basefee > 0);
// }
// }
//}
{
blockNumber: rpc.LatestBlockNumber,
call: TransactionArgs{
From: &accounts[0].addr,
Input: hex2Bytes("6080604052348015600f57600080fd5b50483a1015601c57600080fd5b60003a111560315760004811603057600080fd5b5b603f80603e6000396000f3fe6080604052600080fdfea264697066735822122060729c2cee02b10748fae5200f1c9da4661963354973d9154c13a8e9ce9dee1564736f6c63430008130033"),
GasPrice: (*hexutil.Big)(big.NewInt(1_000_000_000)), // Legacy as pricing
},
expectErr: nil,
want: 67617,
},
{
blockNumber: rpc.LatestBlockNumber,
call: TransactionArgs{
From: &accounts[0].addr,
Input: hex2Bytes("6080604052348015600f57600080fd5b50483a1015601c57600080fd5b60003a111560315760004811603057600080fd5b5b603f80603e6000396000f3fe6080604052600080fdfea264697066735822122060729c2cee02b10748fae5200f1c9da4661963354973d9154c13a8e9ce9dee1564736f6c63430008130033"),
MaxFeePerGas: (*hexutil.Big)(big.NewInt(1_000_000_000)), // 1559 gas pricing
},
expectErr: nil,
want: 67617,
},
{
blockNumber: rpc.LatestBlockNumber,
call: TransactionArgs{
From: &accounts[0].addr,
Input: hex2Bytes("6080604052348015600f57600080fd5b50483a1015601c57600080fd5b60003a111560315760004811603057600080fd5b5b603f80603e6000396000f3fe6080604052600080fdfea264697066735822122060729c2cee02b10748fae5200f1c9da4661963354973d9154c13a8e9ce9dee1564736f6c63430008130033"),
GasPrice: nil, // No legacy gas pricing
MaxFeePerGas: nil, // No 1559 gas pricing
},
expectErr: nil,
want: 67595,
},
}
for i, tc := range testSuite {
result, err := api.EstimateGas(context.Background(), tc.call, &rpc.BlockNumberOrHash{BlockNumber: &tc.blockNumber}, &tc.overrides)

Write Preview
Loading…
Cancel
Save