mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-25 13:07:17 +00:00
ecb781297b
This PR adds a new fork which disables EIP-1283. Internally it's called Petersburg,
but the genesis/config field is ConstantinopleFix.
The block numbers are:
7280000 for Constantinople on Mainnet
7280000 for ConstantinopleFix on Mainnet
4939394 for ConstantinopleFix on Ropsten
9999999 for ConstantinopleFix on Rinkeby (real number decided later)
This PR also defaults to using the same ConstantinopleFix number as whatever
Constantinople is set to. That is, it will default to mainnet behaviour if ConstantinopleFix
is not set.This means that for private networks which have already transitioned
to Constantinople, this PR will break the network unless ConstantinopleFix is
explicitly set!
490 lines
21 KiB
Go
490 lines
21 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"encoding/binary"
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"errors"
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"math"
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"math/big"
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"strings"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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math2 "github.com/ethereum/go-ethereum/common/math"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/params"
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)
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// alethGenesisSpec represents the genesis specification format used by the
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// C++ Ethereum implementation.
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type alethGenesisSpec struct {
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SealEngine string `json:"sealEngine"`
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Params struct {
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AccountStartNonce math2.HexOrDecimal64 `json:"accountStartNonce"`
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MaximumExtraDataSize hexutil.Uint64 `json:"maximumExtraDataSize"`
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HomesteadForkBlock hexutil.Uint64 `json:"homesteadForkBlock"`
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DaoHardforkBlock math2.HexOrDecimal64 `json:"daoHardforkBlock"`
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EIP150ForkBlock hexutil.Uint64 `json:"EIP150ForkBlock"`
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EIP158ForkBlock hexutil.Uint64 `json:"EIP158ForkBlock"`
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ByzantiumForkBlock hexutil.Uint64 `json:"byzantiumForkBlock"`
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ConstantinopleForkBlock hexutil.Uint64 `json:"constantinopleForkBlock"`
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MinGasLimit hexutil.Uint64 `json:"minGasLimit"`
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MaxGasLimit hexutil.Uint64 `json:"maxGasLimit"`
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TieBreakingGas bool `json:"tieBreakingGas"`
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GasLimitBoundDivisor math2.HexOrDecimal64 `json:"gasLimitBoundDivisor"`
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MinimumDifficulty *hexutil.Big `json:"minimumDifficulty"`
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DifficultyBoundDivisor *math2.HexOrDecimal256 `json:"difficultyBoundDivisor"`
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DurationLimit *math2.HexOrDecimal256 `json:"durationLimit"`
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BlockReward *hexutil.Big `json:"blockReward"`
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NetworkID hexutil.Uint64 `json:"networkID"`
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ChainID hexutil.Uint64 `json:"chainID"`
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AllowFutureBlocks bool `json:"allowFutureBlocks"`
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} `json:"params"`
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Genesis struct {
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Nonce hexutil.Bytes `json:"nonce"`
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Difficulty *hexutil.Big `json:"difficulty"`
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MixHash common.Hash `json:"mixHash"`
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Author common.Address `json:"author"`
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Timestamp hexutil.Uint64 `json:"timestamp"`
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ParentHash common.Hash `json:"parentHash"`
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ExtraData hexutil.Bytes `json:"extraData"`
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GasLimit hexutil.Uint64 `json:"gasLimit"`
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} `json:"genesis"`
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Accounts map[common.UnprefixedAddress]*alethGenesisSpecAccount `json:"accounts"`
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}
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// alethGenesisSpecAccount is the prefunded genesis account and/or precompiled
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// contract definition.
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type alethGenesisSpecAccount struct {
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Balance *math2.HexOrDecimal256 `json:"balance"`
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Nonce uint64 `json:"nonce,omitempty"`
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Precompiled *alethGenesisSpecBuiltin `json:"precompiled,omitempty"`
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}
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// alethGenesisSpecBuiltin is the precompiled contract definition.
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type alethGenesisSpecBuiltin struct {
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Name string `json:"name,omitempty"`
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StartingBlock hexutil.Uint64 `json:"startingBlock,omitempty"`
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Linear *alethGenesisSpecLinearPricing `json:"linear,omitempty"`
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}
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type alethGenesisSpecLinearPricing struct {
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Base uint64 `json:"base"`
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Word uint64 `json:"word"`
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}
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// newAlethGenesisSpec converts a go-ethereum genesis block into a Aleth-specific
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// chain specification format.
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func newAlethGenesisSpec(network string, genesis *core.Genesis) (*alethGenesisSpec, error) {
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// Only ethash is currently supported between go-ethereum and aleth
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if genesis.Config.Ethash == nil {
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return nil, errors.New("unsupported consensus engine")
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}
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// Reconstruct the chain spec in Aleth format
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spec := &alethGenesisSpec{
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SealEngine: "Ethash",
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}
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// Some defaults
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spec.Params.AccountStartNonce = 0
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spec.Params.TieBreakingGas = false
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spec.Params.AllowFutureBlocks = false
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spec.Params.DaoHardforkBlock = 0
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spec.Params.HomesteadForkBlock = (hexutil.Uint64)(genesis.Config.HomesteadBlock.Uint64())
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spec.Params.EIP150ForkBlock = (hexutil.Uint64)(genesis.Config.EIP150Block.Uint64())
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spec.Params.EIP158ForkBlock = (hexutil.Uint64)(genesis.Config.EIP158Block.Uint64())
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// Byzantium
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if num := genesis.Config.ByzantiumBlock; num != nil {
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spec.setByzantium(num)
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}
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// Constantinople
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if num := genesis.Config.ConstantinopleBlock; num != nil {
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spec.setConstantinople(num)
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}
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spec.Params.NetworkID = (hexutil.Uint64)(genesis.Config.ChainID.Uint64())
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spec.Params.ChainID = (hexutil.Uint64)(genesis.Config.ChainID.Uint64())
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spec.Params.MaximumExtraDataSize = (hexutil.Uint64)(params.MaximumExtraDataSize)
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spec.Params.MinGasLimit = (hexutil.Uint64)(params.MinGasLimit)
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spec.Params.MaxGasLimit = (hexutil.Uint64)(math.MaxInt64)
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spec.Params.MinimumDifficulty = (*hexutil.Big)(params.MinimumDifficulty)
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spec.Params.DifficultyBoundDivisor = (*math2.HexOrDecimal256)(params.DifficultyBoundDivisor)
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spec.Params.GasLimitBoundDivisor = (math2.HexOrDecimal64)(params.GasLimitBoundDivisor)
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spec.Params.DurationLimit = (*math2.HexOrDecimal256)(params.DurationLimit)
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spec.Params.BlockReward = (*hexutil.Big)(ethash.FrontierBlockReward)
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spec.Genesis.Nonce = (hexutil.Bytes)(make([]byte, 8))
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binary.LittleEndian.PutUint64(spec.Genesis.Nonce[:], genesis.Nonce)
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spec.Genesis.MixHash = genesis.Mixhash
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spec.Genesis.Difficulty = (*hexutil.Big)(genesis.Difficulty)
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spec.Genesis.Author = genesis.Coinbase
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spec.Genesis.Timestamp = (hexutil.Uint64)(genesis.Timestamp)
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spec.Genesis.ParentHash = genesis.ParentHash
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spec.Genesis.ExtraData = (hexutil.Bytes)(genesis.ExtraData)
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spec.Genesis.GasLimit = (hexutil.Uint64)(genesis.GasLimit)
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for address, account := range genesis.Alloc {
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spec.setAccount(address, account)
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}
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spec.setPrecompile(1, &alethGenesisSpecBuiltin{Name: "ecrecover",
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Linear: &alethGenesisSpecLinearPricing{Base: 3000}})
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spec.setPrecompile(2, &alethGenesisSpecBuiltin{Name: "sha256",
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Linear: &alethGenesisSpecLinearPricing{Base: 60, Word: 12}})
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spec.setPrecompile(3, &alethGenesisSpecBuiltin{Name: "ripemd160",
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Linear: &alethGenesisSpecLinearPricing{Base: 600, Word: 120}})
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spec.setPrecompile(4, &alethGenesisSpecBuiltin{Name: "identity",
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Linear: &alethGenesisSpecLinearPricing{Base: 15, Word: 3}})
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if genesis.Config.ByzantiumBlock != nil {
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spec.setPrecompile(5, &alethGenesisSpecBuiltin{Name: "modexp",
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StartingBlock: (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64())})
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spec.setPrecompile(6, &alethGenesisSpecBuiltin{Name: "alt_bn128_G1_add",
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StartingBlock: (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64()),
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Linear: &alethGenesisSpecLinearPricing{Base: 500}})
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spec.setPrecompile(7, &alethGenesisSpecBuiltin{Name: "alt_bn128_G1_mul",
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StartingBlock: (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64()),
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Linear: &alethGenesisSpecLinearPricing{Base: 40000}})
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spec.setPrecompile(8, &alethGenesisSpecBuiltin{Name: "alt_bn128_pairing_product",
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StartingBlock: (hexutil.Uint64)(genesis.Config.ByzantiumBlock.Uint64())})
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}
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return spec, nil
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}
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func (spec *alethGenesisSpec) setPrecompile(address byte, data *alethGenesisSpecBuiltin) {
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if spec.Accounts == nil {
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spec.Accounts = make(map[common.UnprefixedAddress]*alethGenesisSpecAccount)
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}
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addr := common.UnprefixedAddress(common.BytesToAddress([]byte{address}))
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if _, exist := spec.Accounts[addr]; !exist {
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spec.Accounts[addr] = &alethGenesisSpecAccount{}
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}
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spec.Accounts[addr].Precompiled = data
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}
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func (spec *alethGenesisSpec) setAccount(address common.Address, account core.GenesisAccount) {
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if spec.Accounts == nil {
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spec.Accounts = make(map[common.UnprefixedAddress]*alethGenesisSpecAccount)
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}
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a, exist := spec.Accounts[common.UnprefixedAddress(address)]
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if !exist {
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a = &alethGenesisSpecAccount{}
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spec.Accounts[common.UnprefixedAddress(address)] = a
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}
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a.Balance = (*math2.HexOrDecimal256)(account.Balance)
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a.Nonce = account.Nonce
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}
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func (spec *alethGenesisSpec) setByzantium(num *big.Int) {
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spec.Params.ByzantiumForkBlock = hexutil.Uint64(num.Uint64())
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}
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func (spec *alethGenesisSpec) setConstantinople(num *big.Int) {
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spec.Params.ConstantinopleForkBlock = hexutil.Uint64(num.Uint64())
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}
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// parityChainSpec is the chain specification format used by Parity.
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type parityChainSpec struct {
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Name string `json:"name"`
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Datadir string `json:"dataDir"`
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Engine struct {
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Ethash struct {
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Params struct {
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MinimumDifficulty *hexutil.Big `json:"minimumDifficulty"`
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DifficultyBoundDivisor *hexutil.Big `json:"difficultyBoundDivisor"`
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DurationLimit *hexutil.Big `json:"durationLimit"`
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BlockReward map[string]string `json:"blockReward"`
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DifficultyBombDelays map[string]string `json:"difficultyBombDelays"`
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HomesteadTransition hexutil.Uint64 `json:"homesteadTransition"`
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EIP100bTransition hexutil.Uint64 `json:"eip100bTransition"`
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} `json:"params"`
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} `json:"Ethash"`
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} `json:"engine"`
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Params struct {
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AccountStartNonce hexutil.Uint64 `json:"accountStartNonce"`
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MaximumExtraDataSize hexutil.Uint64 `json:"maximumExtraDataSize"`
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MinGasLimit hexutil.Uint64 `json:"minGasLimit"`
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GasLimitBoundDivisor math2.HexOrDecimal64 `json:"gasLimitBoundDivisor"`
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NetworkID hexutil.Uint64 `json:"networkID"`
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ChainID hexutil.Uint64 `json:"chainID"`
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MaxCodeSize hexutil.Uint64 `json:"maxCodeSize"`
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MaxCodeSizeTransition hexutil.Uint64 `json:"maxCodeSizeTransition"`
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EIP98Transition hexutil.Uint64 `json:"eip98Transition"`
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EIP150Transition hexutil.Uint64 `json:"eip150Transition"`
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EIP160Transition hexutil.Uint64 `json:"eip160Transition"`
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EIP161abcTransition hexutil.Uint64 `json:"eip161abcTransition"`
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EIP161dTransition hexutil.Uint64 `json:"eip161dTransition"`
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EIP155Transition hexutil.Uint64 `json:"eip155Transition"`
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EIP140Transition hexutil.Uint64 `json:"eip140Transition"`
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EIP211Transition hexutil.Uint64 `json:"eip211Transition"`
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EIP214Transition hexutil.Uint64 `json:"eip214Transition"`
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EIP658Transition hexutil.Uint64 `json:"eip658Transition"`
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EIP145Transition hexutil.Uint64 `json:"eip145Transition"`
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EIP1014Transition hexutil.Uint64 `json:"eip1014Transition"`
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EIP1052Transition hexutil.Uint64 `json:"eip1052Transition"`
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EIP1283Transition hexutil.Uint64 `json:"eip1283Transition"`
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EIP1283DisableTransition hexutil.Uint64 `json:"eip1283DisableTransition"`
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} `json:"params"`
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Genesis struct {
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Seal struct {
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Ethereum struct {
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Nonce hexutil.Bytes `json:"nonce"`
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MixHash hexutil.Bytes `json:"mixHash"`
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} `json:"ethereum"`
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} `json:"seal"`
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Difficulty *hexutil.Big `json:"difficulty"`
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Author common.Address `json:"author"`
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Timestamp hexutil.Uint64 `json:"timestamp"`
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ParentHash common.Hash `json:"parentHash"`
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ExtraData hexutil.Bytes `json:"extraData"`
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GasLimit hexutil.Uint64 `json:"gasLimit"`
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} `json:"genesis"`
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Nodes []string `json:"nodes"`
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Accounts map[common.UnprefixedAddress]*parityChainSpecAccount `json:"accounts"`
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}
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// parityChainSpecAccount is the prefunded genesis account and/or precompiled
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// contract definition.
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type parityChainSpecAccount struct {
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Balance math2.HexOrDecimal256 `json:"balance"`
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Nonce math2.HexOrDecimal64 `json:"nonce,omitempty"`
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Builtin *parityChainSpecBuiltin `json:"builtin,omitempty"`
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}
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// parityChainSpecBuiltin is the precompiled contract definition.
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type parityChainSpecBuiltin struct {
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Name string `json:"name,omitempty"`
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ActivateAt math2.HexOrDecimal64 `json:"activate_at,omitempty"`
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Pricing *parityChainSpecPricing `json:"pricing,omitempty"`
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}
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// parityChainSpecPricing represents the different pricing models that builtin
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// contracts might advertise using.
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type parityChainSpecPricing struct {
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Linear *parityChainSpecLinearPricing `json:"linear,omitempty"`
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ModExp *parityChainSpecModExpPricing `json:"modexp,omitempty"`
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AltBnPairing *parityChainSpecAltBnPairingPricing `json:"alt_bn128_pairing,omitempty"`
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}
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type parityChainSpecLinearPricing struct {
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Base uint64 `json:"base"`
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Word uint64 `json:"word"`
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}
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type parityChainSpecModExpPricing struct {
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Divisor uint64 `json:"divisor"`
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}
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type parityChainSpecAltBnPairingPricing struct {
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Base uint64 `json:"base"`
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Pair uint64 `json:"pair"`
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}
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// newParityChainSpec converts a go-ethereum genesis block into a Parity specific
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// chain specification format.
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func newParityChainSpec(network string, genesis *core.Genesis, bootnodes []string) (*parityChainSpec, error) {
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// Only ethash is currently supported between go-ethereum and Parity
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if genesis.Config.Ethash == nil {
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return nil, errors.New("unsupported consensus engine")
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}
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// Reconstruct the chain spec in Parity's format
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spec := &parityChainSpec{
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Name: network,
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Nodes: bootnodes,
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Datadir: strings.ToLower(network),
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}
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spec.Engine.Ethash.Params.BlockReward = make(map[string]string)
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spec.Engine.Ethash.Params.DifficultyBombDelays = make(map[string]string)
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// Frontier
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spec.Engine.Ethash.Params.MinimumDifficulty = (*hexutil.Big)(params.MinimumDifficulty)
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spec.Engine.Ethash.Params.DifficultyBoundDivisor = (*hexutil.Big)(params.DifficultyBoundDivisor)
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spec.Engine.Ethash.Params.DurationLimit = (*hexutil.Big)(params.DurationLimit)
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spec.Engine.Ethash.Params.BlockReward["0x0"] = hexutil.EncodeBig(ethash.FrontierBlockReward)
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// Homestead
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spec.Engine.Ethash.Params.HomesteadTransition = hexutil.Uint64(genesis.Config.HomesteadBlock.Uint64())
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// Tangerine Whistle : 150
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// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-608.md
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spec.Params.EIP150Transition = hexutil.Uint64(genesis.Config.EIP150Block.Uint64())
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// Spurious Dragon: 155, 160, 161, 170
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// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-607.md
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spec.Params.EIP155Transition = hexutil.Uint64(genesis.Config.EIP155Block.Uint64())
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spec.Params.EIP160Transition = hexutil.Uint64(genesis.Config.EIP155Block.Uint64())
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spec.Params.EIP161abcTransition = hexutil.Uint64(genesis.Config.EIP158Block.Uint64())
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spec.Params.EIP161dTransition = hexutil.Uint64(genesis.Config.EIP158Block.Uint64())
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// Byzantium
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if num := genesis.Config.ByzantiumBlock; num != nil {
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spec.setByzantium(num)
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}
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// Constantinople
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if num := genesis.Config.ConstantinopleBlock; num != nil {
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spec.setConstantinople(num)
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}
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// ConstantinopleFix (remove eip-1283)
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if num := genesis.Config.PetersburgBlock; num != nil {
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spec.setConstantinopleFix(num)
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}
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spec.Params.MaximumExtraDataSize = (hexutil.Uint64)(params.MaximumExtraDataSize)
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spec.Params.MinGasLimit = (hexutil.Uint64)(params.MinGasLimit)
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spec.Params.GasLimitBoundDivisor = (math2.HexOrDecimal64)(params.GasLimitBoundDivisor)
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spec.Params.NetworkID = (hexutil.Uint64)(genesis.Config.ChainID.Uint64())
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spec.Params.ChainID = (hexutil.Uint64)(genesis.Config.ChainID.Uint64())
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spec.Params.MaxCodeSize = params.MaxCodeSize
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// geth has it set from zero
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spec.Params.MaxCodeSizeTransition = 0
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// Disable this one
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spec.Params.EIP98Transition = math.MaxInt64
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spec.Genesis.Seal.Ethereum.Nonce = (hexutil.Bytes)(make([]byte, 8))
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binary.LittleEndian.PutUint64(spec.Genesis.Seal.Ethereum.Nonce[:], genesis.Nonce)
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spec.Genesis.Seal.Ethereum.MixHash = (hexutil.Bytes)(genesis.Mixhash[:])
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spec.Genesis.Difficulty = (*hexutil.Big)(genesis.Difficulty)
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spec.Genesis.Author = genesis.Coinbase
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spec.Genesis.Timestamp = (hexutil.Uint64)(genesis.Timestamp)
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spec.Genesis.ParentHash = genesis.ParentHash
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spec.Genesis.ExtraData = (hexutil.Bytes)(genesis.ExtraData)
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spec.Genesis.GasLimit = (hexutil.Uint64)(genesis.GasLimit)
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spec.Accounts = make(map[common.UnprefixedAddress]*parityChainSpecAccount)
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for address, account := range genesis.Alloc {
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bal := math2.HexOrDecimal256(*account.Balance)
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spec.Accounts[common.UnprefixedAddress(address)] = &parityChainSpecAccount{
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Balance: bal,
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Nonce: math2.HexOrDecimal64(account.Nonce),
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}
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}
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spec.setPrecompile(1, &parityChainSpecBuiltin{Name: "ecrecover",
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Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 3000}}})
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spec.setPrecompile(2, &parityChainSpecBuiltin{
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Name: "sha256", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 60, Word: 12}},
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})
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spec.setPrecompile(3, &parityChainSpecBuiltin{
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Name: "ripemd160", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 600, Word: 120}},
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})
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spec.setPrecompile(4, &parityChainSpecBuiltin{
|
|
Name: "identity", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 15, Word: 3}},
|
|
})
|
|
if genesis.Config.ByzantiumBlock != nil {
|
|
blnum := math2.HexOrDecimal64(genesis.Config.ByzantiumBlock.Uint64())
|
|
spec.setPrecompile(5, &parityChainSpecBuiltin{
|
|
Name: "modexp", ActivateAt: blnum, Pricing: &parityChainSpecPricing{ModExp: &parityChainSpecModExpPricing{Divisor: 20}},
|
|
})
|
|
spec.setPrecompile(6, &parityChainSpecBuiltin{
|
|
Name: "alt_bn128_add", ActivateAt: blnum, Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 500}},
|
|
})
|
|
spec.setPrecompile(7, &parityChainSpecBuiltin{
|
|
Name: "alt_bn128_mul", ActivateAt: blnum, Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 40000}},
|
|
})
|
|
spec.setPrecompile(8, &parityChainSpecBuiltin{
|
|
Name: "alt_bn128_pairing", ActivateAt: blnum, Pricing: &parityChainSpecPricing{AltBnPairing: &parityChainSpecAltBnPairingPricing{Base: 100000, Pair: 80000}},
|
|
})
|
|
}
|
|
return spec, nil
|
|
}
|
|
|
|
func (spec *parityChainSpec) setPrecompile(address byte, data *parityChainSpecBuiltin) {
|
|
if spec.Accounts == nil {
|
|
spec.Accounts = make(map[common.UnprefixedAddress]*parityChainSpecAccount)
|
|
}
|
|
a := common.UnprefixedAddress(common.BytesToAddress([]byte{address}))
|
|
if _, exist := spec.Accounts[a]; !exist {
|
|
spec.Accounts[a] = &parityChainSpecAccount{}
|
|
}
|
|
spec.Accounts[a].Builtin = data
|
|
}
|
|
|
|
func (spec *parityChainSpec) setByzantium(num *big.Int) {
|
|
spec.Engine.Ethash.Params.BlockReward[hexutil.EncodeBig(num)] = hexutil.EncodeBig(ethash.ByzantiumBlockReward)
|
|
spec.Engine.Ethash.Params.DifficultyBombDelays[hexutil.EncodeBig(num)] = hexutil.EncodeUint64(3000000)
|
|
n := hexutil.Uint64(num.Uint64())
|
|
spec.Engine.Ethash.Params.EIP100bTransition = n
|
|
spec.Params.EIP140Transition = n
|
|
spec.Params.EIP211Transition = n
|
|
spec.Params.EIP214Transition = n
|
|
spec.Params.EIP658Transition = n
|
|
}
|
|
|
|
func (spec *parityChainSpec) setConstantinople(num *big.Int) {
|
|
spec.Engine.Ethash.Params.BlockReward[hexutil.EncodeBig(num)] = hexutil.EncodeBig(ethash.ConstantinopleBlockReward)
|
|
spec.Engine.Ethash.Params.DifficultyBombDelays[hexutil.EncodeBig(num)] = hexutil.EncodeUint64(2000000)
|
|
n := hexutil.Uint64(num.Uint64())
|
|
spec.Params.EIP145Transition = n
|
|
spec.Params.EIP1014Transition = n
|
|
spec.Params.EIP1052Transition = n
|
|
spec.Params.EIP1283Transition = n
|
|
}
|
|
|
|
func (spec *parityChainSpec) setConstantinopleFix(num *big.Int) {
|
|
spec.Params.EIP1283DisableTransition = hexutil.Uint64(num.Uint64())
|
|
}
|
|
|
|
// pyEthereumGenesisSpec represents the genesis specification format used by the
|
|
// Python Ethereum implementation.
|
|
type pyEthereumGenesisSpec struct {
|
|
Nonce hexutil.Bytes `json:"nonce"`
|
|
Timestamp hexutil.Uint64 `json:"timestamp"`
|
|
ExtraData hexutil.Bytes `json:"extraData"`
|
|
GasLimit hexutil.Uint64 `json:"gasLimit"`
|
|
Difficulty *hexutil.Big `json:"difficulty"`
|
|
Mixhash common.Hash `json:"mixhash"`
|
|
Coinbase common.Address `json:"coinbase"`
|
|
Alloc core.GenesisAlloc `json:"alloc"`
|
|
ParentHash common.Hash `json:"parentHash"`
|
|
}
|
|
|
|
// newPyEthereumGenesisSpec converts a go-ethereum genesis block into a Parity specific
|
|
// chain specification format.
|
|
func newPyEthereumGenesisSpec(network string, genesis *core.Genesis) (*pyEthereumGenesisSpec, error) {
|
|
// Only ethash is currently supported between go-ethereum and pyethereum
|
|
if genesis.Config.Ethash == nil {
|
|
return nil, errors.New("unsupported consensus engine")
|
|
}
|
|
spec := &pyEthereumGenesisSpec{
|
|
Timestamp: (hexutil.Uint64)(genesis.Timestamp),
|
|
ExtraData: genesis.ExtraData,
|
|
GasLimit: (hexutil.Uint64)(genesis.GasLimit),
|
|
Difficulty: (*hexutil.Big)(genesis.Difficulty),
|
|
Mixhash: genesis.Mixhash,
|
|
Coinbase: genesis.Coinbase,
|
|
Alloc: genesis.Alloc,
|
|
ParentHash: genesis.ParentHash,
|
|
}
|
|
spec.Nonce = (hexutil.Bytes)(make([]byte, 8))
|
|
binary.LittleEndian.PutUint64(spec.Nonce[:], genesis.Nonce)
|
|
|
|
return spec, nil
|
|
}
|