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all: add support for EIP-2718, EIP-2930 transactions (ethereum#21502)
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This adds support for EIP-2718 typed transactions as well as EIP-2930
access list transactions (tx type 1). These EIPs are scheduled for the
Berlin fork.

There very few changes to existing APIs in core/types, and several new APIs
to deal with access list transactions. In particular, there are two new
constructor functions for transactions: types.NewTx and types.SignNewTx.
Since the canonical encoding of typed transactions is not RLP-compatible,
Transaction now has new methods for encoding and decoding: MarshalBinary
and UnmarshalBinary.

The existing EIP-155 signer does not support the new transaction types.
All code dealing with transaction signatures should be updated to use the
newer EIP-2930 signer. To make this easier for future updates, we have
added new constructor functions for types.Signer: types.LatestSigner and
types.LatestSignerForChainID. 

This change also adds support for the YoloV3 testnet.

Co-authored-by: Martin Holst Swende <[email protected]>
Co-authored-by: Felix Lange <[email protected]>
Co-authored-by: Ryan Schneider <[email protected]>
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4 people authored Feb 25, 2021
1 parent 7a3c890 commit bbfb1e4
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Showing 69 changed files with 2,446 additions and 909 deletions.
4 changes: 2 additions & 2 deletions accounts/abi/bind/auth.go
Original file line number Diff line number Diff line change
Expand Up @@ -120,7 +120,7 @@ func NewKeyStoreTransactorWithChainID(keystore *keystore.KeyStore, account accou
if chainID == nil {
return nil, ErrNoChainID
}
signer := types.NewEIP155Signer(chainID)
signer := types.LatestSignerForChainID(chainID)
return &TransactOpts{
From: account.Address,
Signer: func(address common.Address, tx *types.Transaction) (*types.Transaction, error) {
Expand All @@ -143,7 +143,7 @@ func NewKeyedTransactorWithChainID(key *ecdsa.PrivateKey, chainID *big.Int) (*Tr
if chainID == nil {
return nil, ErrNoChainID
}
signer := types.NewEIP155Signer(chainID)
signer := types.LatestSignerForChainID(chainID)
return &TransactOpts{
From: keyAddr,
Signer: func(address common.Address, tx *types.Transaction) (*types.Transaction, error) {
Expand Down
25 changes: 15 additions & 10 deletions accounts/abi/bind/backends/simulated.go
Original file line number Diff line number Diff line change
Expand Up @@ -559,7 +559,10 @@ func (b *SimulatedBackend) SendTransaction(ctx context.Context, tx *types.Transa
b.mu.Lock()
defer b.mu.Unlock()

sender, err := types.Sender(types.NewEIP155Signer(b.config.ChainID), tx)
// Check transaction validity.
block := b.blockchain.CurrentBlock()
signer := types.MakeSigner(b.blockchain.Config(), block.Number())
sender, err := types.Sender(signer, tx)
if err != nil {
panic(fmt.Errorf("invalid transaction: %v", err))
}
Expand All @@ -568,7 +571,8 @@ func (b *SimulatedBackend) SendTransaction(ctx context.Context, tx *types.Transa
panic(fmt.Errorf("invalid transaction nonce: got %d, want %d", tx.Nonce(), nonce))
}

blocks, _ := core.GenerateChain(b.config, b.blockchain.CurrentBlock(), ethash.NewFaker(), b.database, 1, func(number int, block *core.BlockGen) {
// Include tx in chain.
blocks, _ := core.GenerateChain(b.config, block, ethash.NewFaker(), b.database, 1, func(number int, block *core.BlockGen) {
for _, tx := range b.pendingBlock.Transactions() {
block.AddTxWithChain(b.blockchain, tx)
}
Expand Down Expand Up @@ -707,14 +711,15 @@ type callMsg struct {
ethereum.CallMsg
}

func (m callMsg) From() common.Address { return m.CallMsg.From }
func (m callMsg) Nonce() uint64 { return 0 }
func (m callMsg) CheckNonce() bool { return false }
func (m callMsg) To() *common.Address { return m.CallMsg.To }
func (m callMsg) GasPrice() *big.Int { return m.CallMsg.GasPrice }
func (m callMsg) Gas() uint64 { return m.CallMsg.Gas }
func (m callMsg) Value() *big.Int { return m.CallMsg.Value }
func (m callMsg) Data() []byte { return m.CallMsg.Data }
func (m callMsg) From() common.Address { return m.CallMsg.From }
func (m callMsg) Nonce() uint64 { return 0 }
func (m callMsg) CheckNonce() bool { return false }
func (m callMsg) To() *common.Address { return m.CallMsg.To }
func (m callMsg) GasPrice() *big.Int { return m.CallMsg.GasPrice }
func (m callMsg) Gas() uint64 { return m.CallMsg.Gas }
func (m callMsg) Value() *big.Int { return m.CallMsg.Value }
func (m callMsg) Data() []byte { return m.CallMsg.Data }
func (m callMsg) AccessList() types.AccessList { return m.CallMsg.AccessList }

// filterBackend implements filters.Backend to support filtering for logs without
// taking bloom-bits acceleration structures into account.
Expand Down
17 changes: 6 additions & 11 deletions accounts/keystore/keystore.go
Original file line number Diff line number Diff line change
Expand Up @@ -283,11 +283,9 @@ func (ks *KeyStore) SignTx(a accounts.Account, tx *types.Transaction, chainID *b
if !found {
return nil, ErrLocked
}
// Depending on the presence of the chain ID, sign with EIP155 or homestead
if chainID != nil {
return types.SignTx(tx, types.NewEIP155Signer(chainID), unlockedKey.PrivateKey)
}
return types.SignTx(tx, types.HomesteadSigner{}, unlockedKey.PrivateKey)
// Depending on the presence of the chain ID, sign with 2718 or homestead
signer := types.LatestSignerForChainID(chainID)
return types.SignTx(tx, signer, unlockedKey.PrivateKey)
}

// SignHashWithPassphrase signs hash if the private key matching the given address
Expand All @@ -310,12 +308,9 @@ func (ks *KeyStore) SignTxWithPassphrase(a accounts.Account, passphrase string,
return nil, err
}
defer zeroKey(key.PrivateKey)

// Depending on the presence of the chain ID, sign with EIP155 or homestead
if chainID != nil {
return types.SignTx(tx, types.NewEIP155Signer(chainID), key.PrivateKey)
}
return types.SignTx(tx, types.HomesteadSigner{}, key.PrivateKey)
// Depending on the presence of the chain ID, sign with or without replay protection.
signer := types.LatestSignerForChainID(chainID)
return types.SignTx(tx, signer, key.PrivateKey)
}

// Unlock unlocks the given account indefinitely.
Expand Down
2 changes: 1 addition & 1 deletion accounts/scwallet/wallet.go
Original file line number Diff line number Diff line change
Expand Up @@ -699,7 +699,7 @@ func (w *Wallet) signHash(account accounts.Account, hash []byte) ([]byte, error)
// the needed details via SignTxWithPassphrase, or by other means (e.g. unlock
// the account in a keystore).
func (w *Wallet) SignTx(account accounts.Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
signer := types.NewEIP155Signer(chainID)
signer := types.LatestSignerForChainID(chainID)
hash := signer.Hash(tx)
sig, err := w.signHash(account, hash[:])
if err != nil {
Expand Down
2 changes: 2 additions & 0 deletions accounts/usbwallet/trezor.go
Original file line number Diff line number Diff line change
Expand Up @@ -255,9 +255,11 @@ func (w *trezorDriver) trezorSign(derivationPath []uint32, tx *types.Transaction
if chainID == nil {
signer = new(types.HomesteadSigner)
} else {
// Trezor backend does not support typed transactions yet.
signer = types.NewEIP155Signer(chainID)
signature[64] -= byte(chainID.Uint64()*2 + 35)
}

// Inject the final signature into the transaction and sanity check the sender
signed, err := tx.WithSignature(signer, signature)
if err != nil {
Expand Down
2 changes: 1 addition & 1 deletion cmd/clef/main.go
Original file line number Diff line number Diff line change
Expand Up @@ -1106,7 +1106,7 @@ func GenDoc(ctx *cli.Context) {

rlpdata := common.FromHex("0xf85d640101948a8eafb1cf62bfbeb1741769dae1a9dd47996192018026a0716bd90515acb1e68e5ac5867aa11a1e65399c3349d479f5fb698554ebc6f293a04e8a4ebfff434e971e0ef12c5bf3a881b06fd04fc3f8b8a7291fb67a26a1d4ed")
var tx types.Transaction
rlp.DecodeBytes(rlpdata, &tx)
tx.UnmarshalBinary(rlpdata)
add("OnApproved - SignTransactionResult", desc, &ethapi.SignTransactionResult{Raw: rlpdata, Tx: &tx})

}
Expand Down
17 changes: 8 additions & 9 deletions cmd/evm/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@ Command line params that has to be supported are
--trace.nomemory Disable full memory dump in traces
--trace.nostack Disable stack output in traces
--trace.noreturndata Disable return data output in traces
--output.basedir value Specifies where output files are placed. Will be created if it does not exist. (default: ".")
--output.basedir value Specifies where output files are placed. Will be created if it does not exist.
--output.alloc alloc Determines where to put the alloc of the post-state.
`stdout` - into the stdout output
`stderr` - into the stderr output
Expand Down Expand Up @@ -237,10 +237,10 @@ Example where blockhashes are provided:
cat trace-0-0x72fadbef39cd251a437eea619cfeda752271a5faaaa2147df012e112159ffb81.jsonl | grep BLOCKHASH -C2
```
```
{"pc":0,"op":96,"gas":"0x5f58ef8","gasCost":"0x3","memory":"0x","memSize":0,"stack":[],"returnStack":[],"returnData":null,"depth":1,"refund":0,"opName":"PUSH1","error":""}
{"pc":2,"op":64,"gas":"0x5f58ef5","gasCost":"0x14","memory":"0x","memSize":0,"stack":["0x1"],"returnStack":[],"returnData":null,"depth":1,"refund":0,"opName":"BLOCKHASH","error":""}
{"pc":3,"op":0,"gas":"0x5f58ee1","gasCost":"0x0","memory":"0x","memSize":0,"stack":["0xdac58aa524e50956d0c0bae7f3f8bb9d35381365d07804dd5b48a5a297c06af4"],"returnStack":[],"returnData":null,"depth":1,"refund":0,"opName":"STOP","error":""}
{"output":"","gasUsed":"0x17","time":112885}
{"pc":0,"op":96,"gas":"0x5f58ef8","gasCost":"0x3","memory":"0x","memSize":0,"stack":[],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"PUSH1","error":""}
{"pc":2,"op":64,"gas":"0x5f58ef5","gasCost":"0x14","memory":"0x","memSize":0,"stack":["0x1"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"BLOCKHASH","error":""}
{"pc":3,"op":0,"gas":"0x5f58ee1","gasCost":"0x0","memory":"0x","memSize":0,"stack":["0xdac58aa524e50956d0c0bae7f3f8bb9d35381365d07804dd5b48a5a297c06af4"],"returnStack":[],"returnData":"0x","depth":1,"refund":0,"opName":"STOP","error":""}
{"output":"","gasUsed":"0x17","time":142709}
```

In this example, the caller has not provided the required blockhash:
Expand All @@ -256,9 +256,9 @@ Error code: 4
Another thing that can be done, is to chain invocations:
```
./evm t8n --input.alloc=./testdata/1/alloc.json --input.txs=./testdata/1/txs.json --input.env=./testdata/1/env.json --output.alloc=stdout | ./evm t8n --input.alloc=stdin --input.env=./testdata/1/env.json --input.txs=./testdata/1/txs.json
INFO [08-03|15:25:15.168] rejected tx index=1 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
INFO [08-03|15:25:15.169] rejected tx index=0 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
INFO [08-03|15:25:15.169] rejected tx index=1 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
INFO [01-21|22:41:22.963] rejected tx index=1 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low: address 0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192, tx: 0 state: 1"
INFO [01-21|22:41:22.966] rejected tx index=0 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low: address 0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192, tx: 0 state: 1"
INFO [01-21|22:41:22.967] rejected tx index=1 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low: address 0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192, tx: 0 state: 1"
```
What happened here, is that we first applied two identical transactions, so the second one was rejected.
Expand All @@ -267,4 +267,3 @@ the same two transactions: this time, both failed due to too low nonce.

In order to meaningfully chain invocations, one would need to provide meaningful new `env`, otherwise the
actual blocknumber (exposed to the EVM) would not increase.

37 changes: 19 additions & 18 deletions cmd/evm/internal/t8ntool/execution.go
Original file line number Diff line number Diff line change
Expand Up @@ -143,19 +143,9 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
vmConfig.Debug = (tracer != nil)
statedb.Prepare(tx.Hash(), blockHash, txIndex)
txContext := core.NewEVMTxContext(msg)

evm := vm.NewEVM(vmContext, txContext, statedb, chainConfig, vmConfig)
if chainConfig.IsYoloV3(vmContext.BlockNumber) {
statedb.AddAddressToAccessList(msg.From())
if dst := msg.To(); dst != nil {
statedb.AddAddressToAccessList(*dst)
// If it's a create-tx, the destination will be added inside evm.create
}
for _, addr := range evm.ActivePrecompiles() {
statedb.AddAddressToAccessList(addr)
}
}
snapshot := statedb.Snapshot()
evm := vm.NewEVM(vmContext, txContext, statedb, chainConfig, vmConfig)

// (ret []byte, usedGas uint64, failed bool, err error)
msgResult, err := core.ApplyMessage(evm, msg, gaspool)
if err != nil {
Expand All @@ -169,7 +159,8 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
return nil, nil, NewError(ErrorMissingBlockhash, hashError)
}
gasUsed += msgResult.UsedGas
// Create a new receipt for the transaction, storing the intermediate root and gas used by the tx

// Receipt:
{
var root []byte
if chainConfig.IsByzantium(vmContext.BlockNumber) {
Expand All @@ -178,22 +169,32 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
root = statedb.IntermediateRoot(chainConfig.IsEIP158(vmContext.BlockNumber)).Bytes()
}

receipt := types.NewReceipt(root, msgResult.Failed(), gasUsed)
// Create a new receipt for the transaction, storing the intermediate root and
// gas used by the tx.
receipt := &types.Receipt{Type: tx.Type(), PostState: root, CumulativeGasUsed: gasUsed}
if msgResult.Failed() {
receipt.Status = types.ReceiptStatusFailed
} else {
receipt.Status = types.ReceiptStatusSuccessful
}
receipt.TxHash = tx.Hash()
receipt.GasUsed = msgResult.UsedGas
// if the transaction created a contract, store the creation address in the receipt.

// If the transaction created a contract, store the creation address in the receipt.
if msg.To() == nil {
receipt.ContractAddress = crypto.CreateAddress(evm.TxContext.Origin, tx.Nonce())
}
// Set the receipt logs and create a bloom for filtering

// Set the receipt logs and create the bloom filter.
receipt.Logs = statedb.GetLogs(tx.Hash())
receipt.Bloom = types.CreateBloom(types.Receipts{receipt})
// These three are non-consensus fields
// These three are non-consensus fields:
//receipt.BlockHash
//receipt.BlockNumber =
//receipt.BlockNumber
receipt.TransactionIndex = uint(txIndex)
receipts = append(receipts, receipt)
}

txIndex++
}
statedb.IntermediateRoot(chainConfig.IsEIP158(vmContext.BlockNumber))
Expand Down
5 changes: 5 additions & 0 deletions cmd/evm/internal/t8ntool/flags.go
Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,11 @@ var (
Usage: "Specifies where output files are placed. Will be created if it does not exist.",
Value: "",
}
OutputBodyFlag = cli.StringFlag{
Name: "output.body",
Usage: "If set, the RLP of the transactions (block body) will be written to this file.",
Value: "",
}
OutputAllocFlag = cli.StringFlag{
Name: "output.alloc",
Usage: "Determines where to put the `alloc` of the post-state.\n" +
Expand Down
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