forked from cerc-io/plugeth
314 lines
11 KiB
Go
314 lines
11 KiB
Go
// Copyright 2020 The go-ethereum Authors
|
|
// This file is part of go-ethereum.
|
|
//
|
|
// go-ethereum is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// go-ethereum is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package t8ntool
|
|
|
|
import (
|
|
"fmt"
|
|
"math/big"
|
|
"os"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/common/math"
|
|
"github.com/ethereum/go-ethereum/consensus/ethash"
|
|
"github.com/ethereum/go-ethereum/consensus/misc"
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/core/state"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/core/vm"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
"github.com/ethereum/go-ethereum/trie"
|
|
"golang.org/x/crypto/sha3"
|
|
)
|
|
|
|
type Prestate struct {
|
|
Env stEnv `json:"env"`
|
|
Pre core.GenesisAlloc `json:"pre"`
|
|
}
|
|
|
|
// ExecutionResult contains the execution status after running a state test, any
|
|
// error that might have occurred and a dump of the final state if requested.
|
|
type ExecutionResult struct {
|
|
StateRoot common.Hash `json:"stateRoot"`
|
|
TxRoot common.Hash `json:"txRoot"`
|
|
ReceiptRoot common.Hash `json:"receiptsRoot"`
|
|
LogsHash common.Hash `json:"logsHash"`
|
|
Bloom types.Bloom `json:"logsBloom" gencodec:"required"`
|
|
Receipts types.Receipts `json:"receipts"`
|
|
Rejected []*rejectedTx `json:"rejected,omitempty"`
|
|
Difficulty *math.HexOrDecimal256 `json:"currentDifficulty" gencodec:"required"`
|
|
GasUsed math.HexOrDecimal64 `json:"gasUsed"`
|
|
}
|
|
|
|
type ommer struct {
|
|
Delta uint64 `json:"delta"`
|
|
Address common.Address `json:"address"`
|
|
}
|
|
|
|
//go:generate go run github.com/fjl/gencodec -type stEnv -field-override stEnvMarshaling -out gen_stenv.go
|
|
type stEnv struct {
|
|
Coinbase common.Address `json:"currentCoinbase" gencodec:"required"`
|
|
Difficulty *big.Int `json:"currentDifficulty"`
|
|
Random *big.Int `json:"currentRandom"`
|
|
ParentDifficulty *big.Int `json:"parentDifficulty"`
|
|
GasLimit uint64 `json:"currentGasLimit" gencodec:"required"`
|
|
Number uint64 `json:"currentNumber" gencodec:"required"`
|
|
Timestamp uint64 `json:"currentTimestamp" gencodec:"required"`
|
|
ParentTimestamp uint64 `json:"parentTimestamp,omitempty"`
|
|
BlockHashes map[math.HexOrDecimal64]common.Hash `json:"blockHashes,omitempty"`
|
|
Ommers []ommer `json:"ommers,omitempty"`
|
|
BaseFee *big.Int `json:"currentBaseFee,omitempty"`
|
|
ParentUncleHash common.Hash `json:"parentUncleHash"`
|
|
}
|
|
|
|
type stEnvMarshaling struct {
|
|
Coinbase common.UnprefixedAddress
|
|
Difficulty *math.HexOrDecimal256
|
|
Random *math.HexOrDecimal256
|
|
ParentDifficulty *math.HexOrDecimal256
|
|
GasLimit math.HexOrDecimal64
|
|
Number math.HexOrDecimal64
|
|
Timestamp math.HexOrDecimal64
|
|
ParentTimestamp math.HexOrDecimal64
|
|
BaseFee *math.HexOrDecimal256
|
|
}
|
|
|
|
type rejectedTx struct {
|
|
Index int `json:"index"`
|
|
Err string `json:"error"`
|
|
}
|
|
|
|
// Apply applies a set of transactions to a pre-state
|
|
func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
|
|
txs types.Transactions, miningReward int64,
|
|
getTracerFn func(txIndex int, txHash common.Hash) (tracer vm.EVMLogger, err error)) (*state.StateDB, *ExecutionResult, error) {
|
|
|
|
// Capture errors for BLOCKHASH operation, if we haven't been supplied the
|
|
// required blockhashes
|
|
var hashError error
|
|
getHash := func(num uint64) common.Hash {
|
|
if pre.Env.BlockHashes == nil {
|
|
hashError = fmt.Errorf("getHash(%d) invoked, no blockhashes provided", num)
|
|
return common.Hash{}
|
|
}
|
|
h, ok := pre.Env.BlockHashes[math.HexOrDecimal64(num)]
|
|
if !ok {
|
|
hashError = fmt.Errorf("getHash(%d) invoked, blockhash for that block not provided", num)
|
|
}
|
|
return h
|
|
}
|
|
var (
|
|
statedb = MakePreState(rawdb.NewMemoryDatabase(), pre.Pre)
|
|
signer = types.MakeSigner(chainConfig, new(big.Int).SetUint64(pre.Env.Number))
|
|
gaspool = new(core.GasPool)
|
|
blockHash = common.Hash{0x13, 0x37}
|
|
rejectedTxs []*rejectedTx
|
|
includedTxs types.Transactions
|
|
gasUsed = uint64(0)
|
|
receipts = make(types.Receipts, 0)
|
|
txIndex = 0
|
|
)
|
|
gaspool.AddGas(pre.Env.GasLimit)
|
|
vmContext := vm.BlockContext{
|
|
CanTransfer: core.CanTransfer,
|
|
Transfer: core.Transfer,
|
|
Coinbase: pre.Env.Coinbase,
|
|
BlockNumber: new(big.Int).SetUint64(pre.Env.Number),
|
|
Time: new(big.Int).SetUint64(pre.Env.Timestamp),
|
|
Difficulty: pre.Env.Difficulty,
|
|
GasLimit: pre.Env.GasLimit,
|
|
GetHash: getHash,
|
|
}
|
|
// If currentBaseFee is defined, add it to the vmContext.
|
|
if pre.Env.BaseFee != nil {
|
|
vmContext.BaseFee = new(big.Int).Set(pre.Env.BaseFee)
|
|
}
|
|
// If random is defined, add it to the vmContext.
|
|
if pre.Env.Random != nil {
|
|
rnd := common.BigToHash(pre.Env.Random)
|
|
vmContext.Random = &rnd
|
|
}
|
|
// If DAO is supported/enabled, we need to handle it here. In geth 'proper', it's
|
|
// done in StateProcessor.Process(block, ...), right before transactions are applied.
|
|
if chainConfig.DAOForkSupport &&
|
|
chainConfig.DAOForkBlock != nil &&
|
|
chainConfig.DAOForkBlock.Cmp(new(big.Int).SetUint64(pre.Env.Number)) == 0 {
|
|
misc.ApplyDAOHardFork(statedb)
|
|
}
|
|
|
|
for i, tx := range txs {
|
|
msg, err := tx.AsMessage(signer, pre.Env.BaseFee)
|
|
if err != nil {
|
|
log.Warn("rejected tx", "index", i, "hash", tx.Hash(), "error", err)
|
|
rejectedTxs = append(rejectedTxs, &rejectedTx{i, err.Error()})
|
|
continue
|
|
}
|
|
tracer, err := getTracerFn(txIndex, tx.Hash())
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
vmConfig.Tracer = tracer
|
|
vmConfig.Debug = (tracer != nil)
|
|
statedb.Prepare(tx.Hash(), txIndex)
|
|
txContext := core.NewEVMTxContext(msg)
|
|
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 {
|
|
statedb.RevertToSnapshot(snapshot)
|
|
log.Info("rejected tx", "index", i, "hash", tx.Hash(), "from", msg.From(), "error", err)
|
|
rejectedTxs = append(rejectedTxs, &rejectedTx{i, err.Error()})
|
|
continue
|
|
}
|
|
includedTxs = append(includedTxs, tx)
|
|
if hashError != nil {
|
|
return nil, nil, NewError(ErrorMissingBlockhash, hashError)
|
|
}
|
|
gasUsed += msgResult.UsedGas
|
|
|
|
// Receipt:
|
|
{
|
|
var root []byte
|
|
if chainConfig.IsByzantium(vmContext.BlockNumber) {
|
|
statedb.Finalise(true)
|
|
} else {
|
|
root = statedb.IntermediateRoot(chainConfig.IsEIP158(vmContext.BlockNumber)).Bytes()
|
|
}
|
|
|
|
// 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 msg.To() == nil {
|
|
receipt.ContractAddress = crypto.CreateAddress(evm.TxContext.Origin, tx.Nonce())
|
|
}
|
|
|
|
// Set the receipt logs and create the bloom filter.
|
|
receipt.Logs = statedb.GetLogs(tx.Hash(), blockHash)
|
|
receipt.Bloom = types.CreateBloom(types.Receipts{receipt})
|
|
// These three are non-consensus fields:
|
|
//receipt.BlockHash
|
|
//receipt.BlockNumber
|
|
receipt.TransactionIndex = uint(txIndex)
|
|
receipts = append(receipts, receipt)
|
|
}
|
|
|
|
txIndex++
|
|
}
|
|
statedb.IntermediateRoot(chainConfig.IsEIP158(vmContext.BlockNumber))
|
|
// Add mining reward?
|
|
if miningReward > 0 {
|
|
// Add mining reward. The mining reward may be `0`, which only makes a difference in the cases
|
|
// where
|
|
// - the coinbase suicided, or
|
|
// - there are only 'bad' transactions, which aren't executed. In those cases,
|
|
// the coinbase gets no txfee, so isn't created, and thus needs to be touched
|
|
var (
|
|
blockReward = big.NewInt(miningReward)
|
|
minerReward = new(big.Int).Set(blockReward)
|
|
perOmmer = new(big.Int).Div(blockReward, big.NewInt(32))
|
|
)
|
|
for _, ommer := range pre.Env.Ommers {
|
|
// Add 1/32th for each ommer included
|
|
minerReward.Add(minerReward, perOmmer)
|
|
// Add (8-delta)/8
|
|
reward := big.NewInt(8)
|
|
reward.Sub(reward, big.NewInt(0).SetUint64(ommer.Delta))
|
|
reward.Mul(reward, blockReward)
|
|
reward.Div(reward, big.NewInt(8))
|
|
statedb.AddBalance(ommer.Address, reward)
|
|
}
|
|
statedb.AddBalance(pre.Env.Coinbase, minerReward)
|
|
}
|
|
// Commit block
|
|
root, err := statedb.Commit(chainConfig.IsEIP158(vmContext.BlockNumber))
|
|
if err != nil {
|
|
fmt.Fprintf(os.Stderr, "Could not commit state: %v", err)
|
|
return nil, nil, NewError(ErrorEVM, fmt.Errorf("could not commit state: %v", err))
|
|
}
|
|
execRs := &ExecutionResult{
|
|
StateRoot: root,
|
|
TxRoot: types.DeriveSha(includedTxs, trie.NewStackTrie(nil)),
|
|
ReceiptRoot: types.DeriveSha(receipts, trie.NewStackTrie(nil)),
|
|
Bloom: types.CreateBloom(receipts),
|
|
LogsHash: rlpHash(statedb.Logs()),
|
|
Receipts: receipts,
|
|
Rejected: rejectedTxs,
|
|
Difficulty: (*math.HexOrDecimal256)(vmContext.Difficulty),
|
|
GasUsed: (math.HexOrDecimal64)(gasUsed),
|
|
}
|
|
return statedb, execRs, nil
|
|
}
|
|
|
|
func MakePreState(db ethdb.Database, accounts core.GenesisAlloc) *state.StateDB {
|
|
sdb := state.NewDatabase(db)
|
|
statedb, _ := state.New(common.Hash{}, sdb, nil)
|
|
for addr, a := range accounts {
|
|
statedb.SetCode(addr, a.Code)
|
|
statedb.SetNonce(addr, a.Nonce)
|
|
statedb.SetBalance(addr, a.Balance)
|
|
for k, v := range a.Storage {
|
|
statedb.SetState(addr, k, v)
|
|
}
|
|
}
|
|
// Commit and re-open to start with a clean state.
|
|
root, _ := statedb.Commit(false)
|
|
statedb, _ = state.New(root, sdb, nil)
|
|
return statedb
|
|
}
|
|
|
|
func rlpHash(x interface{}) (h common.Hash) {
|
|
hw := sha3.NewLegacyKeccak256()
|
|
rlp.Encode(hw, x)
|
|
hw.Sum(h[:0])
|
|
return h
|
|
}
|
|
|
|
// calcDifficulty is based on ethash.CalcDifficulty. This method is used in case
|
|
// the caller does not provide an explicit difficulty, but instead provides only
|
|
// parent timestamp + difficulty.
|
|
// Note: this method only works for ethash engine.
|
|
func calcDifficulty(config *params.ChainConfig, number, currentTime, parentTime uint64,
|
|
parentDifficulty *big.Int, parentUncleHash common.Hash) *big.Int {
|
|
uncleHash := parentUncleHash
|
|
if uncleHash == (common.Hash{}) {
|
|
uncleHash = types.EmptyUncleHash
|
|
}
|
|
parent := &types.Header{
|
|
ParentHash: common.Hash{},
|
|
UncleHash: uncleHash,
|
|
Difficulty: parentDifficulty,
|
|
Number: new(big.Int).SetUint64(number - 1),
|
|
Time: parentTime,
|
|
}
|
|
return ethash.CalcDifficulty(config, currentTime, parent)
|
|
}
|