627 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			627 lines
		
	
	
		
			26 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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	"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/core/types"
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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.Big           `json:"homesteadForkBlock,omitempty"`
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		DaoHardforkBlock           math2.HexOrDecimal64   `json:"daoHardforkBlock"`
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		EIP150ForkBlock            *hexutil.Big           `json:"EIP150ForkBlock,omitempty"`
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		EIP158ForkBlock            *hexutil.Big           `json:"EIP158ForkBlock,omitempty"`
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		ByzantiumForkBlock         *hexutil.Big           `json:"byzantiumForkBlock,omitempty"`
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		ConstantinopleForkBlock    *hexutil.Big           `json:"constantinopleForkBlock,omitempty"`
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		ConstantinopleFixForkBlock *hexutil.Big           `json:"constantinopleFixForkBlock,omitempty"`
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		IstanbulForkBlock          *hexutil.Big           `json:"istanbulForkBlock,omitempty"`
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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      types.BlockNonce `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,omitempty"`
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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.Big                   `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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	// Dao hardfork block is a special one. The fork block is listed as 0 in the
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	// config but aleth will sync with ETC clients up until the actual dao hard
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	// fork block.
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	spec.Params.DaoHardforkBlock = 0
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	if num := genesis.Config.HomesteadBlock; num != nil {
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		spec.Params.HomesteadForkBlock = (*hexutil.Big)(num)
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	}
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	if num := genesis.Config.EIP150Block; num != nil {
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		spec.Params.EIP150ForkBlock = (*hexutil.Big)(num)
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	}
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	if num := genesis.Config.EIP158Block; num != nil {
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		spec.Params.EIP158ForkBlock = (*hexutil.Big)(num)
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	}
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	if num := genesis.Config.ByzantiumBlock; num != nil {
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		spec.Params.ByzantiumForkBlock = (*hexutil.Big)(num)
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	}
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	if num := genesis.Config.ConstantinopleBlock; num != nil {
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		spec.Params.ConstantinopleForkBlock = (*hexutil.Big)(num)
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	}
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	if num := genesis.Config.PetersburgBlock; num != nil {
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		spec.Params.ConstantinopleFixForkBlock = (*hexutil.Big)(num)
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	}
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	if num := genesis.Config.IstanbulBlock; num != nil {
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		spec.Params.IstanbulForkBlock = (*hexutil.Big)(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 = types.EncodeNonce(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.Big)(genesis.Config.ByzantiumBlock)})
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		spec.setPrecompile(6, &alethGenesisSpecBuiltin{Name: "alt_bn128_G1_add",
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			StartingBlock: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
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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.Big)(genesis.Config.ByzantiumBlock),
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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.Big)(genesis.Config.ByzantiumBlock)})
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	}
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	if genesis.Config.IstanbulBlock != nil {
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		if genesis.Config.ByzantiumBlock == nil {
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			return nil, errors.New("invalid genesis, istanbul fork is enabled while byzantium is not")
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		}
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		spec.setPrecompile(6, &alethGenesisSpecBuiltin{
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			Name:          "alt_bn128_G1_add",
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			StartingBlock: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
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		}) // Aleth hardcoded the gas policy
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		spec.setPrecompile(7, &alethGenesisSpecBuiltin{
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			Name:          "alt_bn128_G1_mul",
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			StartingBlock: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
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		}) // Aleth hardcoded the gas policy
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		spec.setPrecompile(9, &alethGenesisSpecBuiltin{
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			Name:          "blake2_compression",
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			StartingBlock: (*hexutil.Big)(genesis.Config.IstanbulBlock),
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		})
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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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// 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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		EIP1283ReenableTransition hexutil.Uint64       `json:"eip1283ReenableTransition"`
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		EIP1344Transition         hexutil.Uint64       `json:"eip1344Transition"`
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		EIP1884Transition         hexutil.Uint64       `json:"eip1884Transition"`
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		EIP2028Transition         hexutil.Uint64       `json:"eip2028Transition"`
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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   types.BlockNonce `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"`                  // Each builtin should has it own name
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	Pricing    interface{}  `json:"pricing"`               // Each builtin should has it own price strategy
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	ActivateAt *hexutil.Big `json:"activate_at,omitempty"` // ActivateAt can't be omitted if empty, default means no fork
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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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	// Before the https://github.com/paritytech/parity-ethereum/pull/11039,
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	// Parity uses this format to config bn pairing price policy.
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	AltBnPairing *parityChainSepcAltBnPairingPricing `json:"alt_bn128_pairing,omitempty"`
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	// Blake2F is the price per round of Blake2 compression
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	Blake2F *parityChainSpecBlakePricing `json:"blake2_f,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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// parityChainSpecAltBnConstOperationPricing defines the price
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						|
// policy for bn const operation(used after istanbul)
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						|
type parityChainSpecAltBnConstOperationPricing struct {
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						|
	Price uint64 `json:"price"`
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}
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// parityChainSepcAltBnPairingPricing defines the price policy
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						|
// for bn pairing.
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						|
type parityChainSepcAltBnPairingPricing 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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						|
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						|
// parityChainSpecBlakePricing defines the price policy for blake2 f
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						|
// compression.
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						|
type parityChainSpecBlakePricing struct {
 | 
						|
	GasPerRound uint64 `json:"gas_per_round"`
 | 
						|
}
 | 
						|
 | 
						|
type parityChainSpecAlternativePrice struct {
 | 
						|
	AltBnConstOperationPrice *parityChainSpecAltBnConstOperationPricing `json:"alt_bn128_const_operations,omitempty"`
 | 
						|
	AltBnPairingPrice        *parityChainSepcAltBnPairingPricing        `json:"alt_bn128_pairing,omitempty"`
 | 
						|
}
 | 
						|
 | 
						|
// parityChainSpecVersionedPricing represents a single version price policy.
 | 
						|
type parityChainSpecVersionedPricing struct {
 | 
						|
	Price *parityChainSpecAlternativePrice `json:"price,omitempty"`
 | 
						|
	Info  string                           `json:"info,omitempty"`
 | 
						|
}
 | 
						|
 | 
						|
// newParityChainSpec converts a go-ethereum genesis block into a Parity specific
 | 
						|
// chain specification format.
 | 
						|
func newParityChainSpec(network string, genesis *core.Genesis, bootnodes []string) (*parityChainSpec, error) {
 | 
						|
	// Only ethash is currently supported between go-ethereum and Parity
 | 
						|
	if genesis.Config.Ethash == nil {
 | 
						|
		return nil, errors.New("unsupported consensus engine")
 | 
						|
	}
 | 
						|
	// Reconstruct the chain spec in Parity's format
 | 
						|
	spec := &parityChainSpec{
 | 
						|
		Name:    network,
 | 
						|
		Nodes:   bootnodes,
 | 
						|
		Datadir: strings.ToLower(network),
 | 
						|
	}
 | 
						|
	spec.Engine.Ethash.Params.BlockReward = make(map[string]string)
 | 
						|
	spec.Engine.Ethash.Params.DifficultyBombDelays = make(map[string]string)
 | 
						|
	// Frontier
 | 
						|
	spec.Engine.Ethash.Params.MinimumDifficulty = (*hexutil.Big)(params.MinimumDifficulty)
 | 
						|
	spec.Engine.Ethash.Params.DifficultyBoundDivisor = (*hexutil.Big)(params.DifficultyBoundDivisor)
 | 
						|
	spec.Engine.Ethash.Params.DurationLimit = (*hexutil.Big)(params.DurationLimit)
 | 
						|
	spec.Engine.Ethash.Params.BlockReward["0x0"] = hexutil.EncodeBig(ethash.FrontierBlockReward)
 | 
						|
 | 
						|
	// Homestead
 | 
						|
	spec.Engine.Ethash.Params.HomesteadTransition = hexutil.Uint64(genesis.Config.HomesteadBlock.Uint64())
 | 
						|
 | 
						|
	// Tangerine Whistle : 150
 | 
						|
	// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-608.md
 | 
						|
	spec.Params.EIP150Transition = hexutil.Uint64(genesis.Config.EIP150Block.Uint64())
 | 
						|
 | 
						|
	// Spurious Dragon: 155, 160, 161, 170
 | 
						|
	// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-607.md
 | 
						|
	spec.Params.EIP155Transition = hexutil.Uint64(genesis.Config.EIP155Block.Uint64())
 | 
						|
	spec.Params.EIP160Transition = hexutil.Uint64(genesis.Config.EIP155Block.Uint64())
 | 
						|
	spec.Params.EIP161abcTransition = hexutil.Uint64(genesis.Config.EIP158Block.Uint64())
 | 
						|
	spec.Params.EIP161dTransition = hexutil.Uint64(genesis.Config.EIP158Block.Uint64())
 | 
						|
 | 
						|
	// Byzantium
 | 
						|
	if num := genesis.Config.ByzantiumBlock; num != nil {
 | 
						|
		spec.setByzantium(num)
 | 
						|
	}
 | 
						|
	// Constantinople
 | 
						|
	if num := genesis.Config.ConstantinopleBlock; num != nil {
 | 
						|
		spec.setConstantinople(num)
 | 
						|
	}
 | 
						|
	// ConstantinopleFix (remove eip-1283)
 | 
						|
	if num := genesis.Config.PetersburgBlock; num != nil {
 | 
						|
		spec.setConstantinopleFix(num)
 | 
						|
	}
 | 
						|
	// Istanbul
 | 
						|
	if num := genesis.Config.IstanbulBlock; num != nil {
 | 
						|
		spec.setIstanbul(num)
 | 
						|
	}
 | 
						|
	spec.Params.MaximumExtraDataSize = (hexutil.Uint64)(params.MaximumExtraDataSize)
 | 
						|
	spec.Params.MinGasLimit = (hexutil.Uint64)(params.MinGasLimit)
 | 
						|
	spec.Params.GasLimitBoundDivisor = (math2.HexOrDecimal64)(params.GasLimitBoundDivisor)
 | 
						|
	spec.Params.NetworkID = (hexutil.Uint64)(genesis.Config.ChainID.Uint64())
 | 
						|
	spec.Params.ChainID = (hexutil.Uint64)(genesis.Config.ChainID.Uint64())
 | 
						|
	spec.Params.MaxCodeSize = params.MaxCodeSize
 | 
						|
	// geth has it set from zero
 | 
						|
	spec.Params.MaxCodeSizeTransition = 0
 | 
						|
 | 
						|
	// Disable this one
 | 
						|
	spec.Params.EIP98Transition = math.MaxInt64
 | 
						|
 | 
						|
	spec.Genesis.Seal.Ethereum.Nonce = types.EncodeNonce(genesis.Nonce)
 | 
						|
	spec.Genesis.Seal.Ethereum.MixHash = (genesis.Mixhash[:])
 | 
						|
	spec.Genesis.Difficulty = (*hexutil.Big)(genesis.Difficulty)
 | 
						|
	spec.Genesis.Author = genesis.Coinbase
 | 
						|
	spec.Genesis.Timestamp = (hexutil.Uint64)(genesis.Timestamp)
 | 
						|
	spec.Genesis.ParentHash = genesis.ParentHash
 | 
						|
	spec.Genesis.ExtraData = (hexutil.Bytes)(genesis.ExtraData)
 | 
						|
	spec.Genesis.GasLimit = (hexutil.Uint64)(genesis.GasLimit)
 | 
						|
 | 
						|
	spec.Accounts = make(map[common.UnprefixedAddress]*parityChainSpecAccount)
 | 
						|
	for address, account := range genesis.Alloc {
 | 
						|
		bal := math2.HexOrDecimal256(*account.Balance)
 | 
						|
 | 
						|
		spec.Accounts[common.UnprefixedAddress(address)] = &parityChainSpecAccount{
 | 
						|
			Balance: bal,
 | 
						|
			Nonce:   math2.HexOrDecimal64(account.Nonce),
 | 
						|
		}
 | 
						|
	}
 | 
						|
	spec.setPrecompile(1, &parityChainSpecBuiltin{Name: "ecrecover",
 | 
						|
		Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 3000}}})
 | 
						|
 | 
						|
	spec.setPrecompile(2, &parityChainSpecBuiltin{
 | 
						|
		Name: "sha256", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 60, Word: 12}},
 | 
						|
	})
 | 
						|
	spec.setPrecompile(3, &parityChainSpecBuiltin{
 | 
						|
		Name: "ripemd160", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 600, Word: 120}},
 | 
						|
	})
 | 
						|
	spec.setPrecompile(4, &parityChainSpecBuiltin{
 | 
						|
		Name: "identity", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 15, Word: 3}},
 | 
						|
	})
 | 
						|
	if genesis.Config.ByzantiumBlock != nil {
 | 
						|
		spec.setPrecompile(5, &parityChainSpecBuiltin{
 | 
						|
			Name:       "modexp",
 | 
						|
			ActivateAt: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
 | 
						|
			Pricing: &parityChainSpecPricing{
 | 
						|
				ModExp: &parityChainSpecModExpPricing{Divisor: 20},
 | 
						|
			},
 | 
						|
		})
 | 
						|
		spec.setPrecompile(6, &parityChainSpecBuiltin{
 | 
						|
			Name:       "alt_bn128_add",
 | 
						|
			ActivateAt: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
 | 
						|
			Pricing: &parityChainSpecPricing{
 | 
						|
				Linear: &parityChainSpecLinearPricing{Base: 500, Word: 0},
 | 
						|
			},
 | 
						|
		})
 | 
						|
		spec.setPrecompile(7, &parityChainSpecBuiltin{
 | 
						|
			Name:       "alt_bn128_mul",
 | 
						|
			ActivateAt: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
 | 
						|
			Pricing: &parityChainSpecPricing{
 | 
						|
				Linear: &parityChainSpecLinearPricing{Base: 40000, Word: 0},
 | 
						|
			},
 | 
						|
		})
 | 
						|
		spec.setPrecompile(8, &parityChainSpecBuiltin{
 | 
						|
			Name:       "alt_bn128_pairing",
 | 
						|
			ActivateAt: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
 | 
						|
			Pricing: &parityChainSpecPricing{
 | 
						|
				AltBnPairing: &parityChainSepcAltBnPairingPricing{Base: 100000, Pair: 80000},
 | 
						|
			},
 | 
						|
		})
 | 
						|
	}
 | 
						|
	if genesis.Config.IstanbulBlock != nil {
 | 
						|
		if genesis.Config.ByzantiumBlock == nil {
 | 
						|
			return nil, errors.New("invalid genesis, istanbul fork is enabled while byzantium is not")
 | 
						|
		}
 | 
						|
		spec.setPrecompile(6, &parityChainSpecBuiltin{
 | 
						|
			Name:       "alt_bn128_add",
 | 
						|
			ActivateAt: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
 | 
						|
			Pricing: map[*hexutil.Big]*parityChainSpecVersionedPricing{
 | 
						|
				(*hexutil.Big)(big.NewInt(0)): {
 | 
						|
					Price: &parityChainSpecAlternativePrice{
 | 
						|
						AltBnConstOperationPrice: &parityChainSpecAltBnConstOperationPricing{Price: 500},
 | 
						|
					},
 | 
						|
				},
 | 
						|
				(*hexutil.Big)(genesis.Config.IstanbulBlock): {
 | 
						|
					Price: &parityChainSpecAlternativePrice{
 | 
						|
						AltBnConstOperationPrice: &parityChainSpecAltBnConstOperationPricing{Price: 150},
 | 
						|
					},
 | 
						|
				},
 | 
						|
			},
 | 
						|
		})
 | 
						|
		spec.setPrecompile(7, &parityChainSpecBuiltin{
 | 
						|
			Name:       "alt_bn128_mul",
 | 
						|
			ActivateAt: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
 | 
						|
			Pricing: map[*hexutil.Big]*parityChainSpecVersionedPricing{
 | 
						|
				(*hexutil.Big)(big.NewInt(0)): {
 | 
						|
					Price: &parityChainSpecAlternativePrice{
 | 
						|
						AltBnConstOperationPrice: &parityChainSpecAltBnConstOperationPricing{Price: 40000},
 | 
						|
					},
 | 
						|
				},
 | 
						|
				(*hexutil.Big)(genesis.Config.IstanbulBlock): {
 | 
						|
					Price: &parityChainSpecAlternativePrice{
 | 
						|
						AltBnConstOperationPrice: &parityChainSpecAltBnConstOperationPricing{Price: 6000},
 | 
						|
					},
 | 
						|
				},
 | 
						|
			},
 | 
						|
		})
 | 
						|
		spec.setPrecompile(8, &parityChainSpecBuiltin{
 | 
						|
			Name:       "alt_bn128_pairing",
 | 
						|
			ActivateAt: (*hexutil.Big)(genesis.Config.ByzantiumBlock),
 | 
						|
			Pricing: map[*hexutil.Big]*parityChainSpecVersionedPricing{
 | 
						|
				(*hexutil.Big)(big.NewInt(0)): {
 | 
						|
					Price: &parityChainSpecAlternativePrice{
 | 
						|
						AltBnPairingPrice: &parityChainSepcAltBnPairingPricing{Base: 100000, Pair: 80000},
 | 
						|
					},
 | 
						|
				},
 | 
						|
				(*hexutil.Big)(genesis.Config.IstanbulBlock): {
 | 
						|
					Price: &parityChainSpecAlternativePrice{
 | 
						|
						AltBnPairingPrice: &parityChainSepcAltBnPairingPricing{Base: 45000, Pair: 34000},
 | 
						|
					},
 | 
						|
				},
 | 
						|
			},
 | 
						|
		})
 | 
						|
		spec.setPrecompile(9, &parityChainSpecBuiltin{
 | 
						|
			Name:       "blake2_f",
 | 
						|
			ActivateAt: (*hexutil.Big)(genesis.Config.IstanbulBlock),
 | 
						|
			Pricing: &parityChainSpecPricing{
 | 
						|
				Blake2F: &parityChainSpecBlakePricing{GasPerRound: 1},
 | 
						|
			},
 | 
						|
		})
 | 
						|
	}
 | 
						|
	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())
 | 
						|
}
 | 
						|
 | 
						|
func (spec *parityChainSpec) setIstanbul(num *big.Int) {
 | 
						|
	spec.Params.EIP1344Transition = hexutil.Uint64(num.Uint64())
 | 
						|
	spec.Params.EIP1884Transition = hexutil.Uint64(num.Uint64())
 | 
						|
	spec.Params.EIP2028Transition = hexutil.Uint64(num.Uint64())
 | 
						|
	spec.Params.EIP1283ReenableTransition = hexutil.Uint64(num.Uint64())
 | 
						|
}
 | 
						|
 | 
						|
// pyEthereumGenesisSpec represents the genesis specification format used by the
 | 
						|
// Python Ethereum implementation.
 | 
						|
type pyEthereumGenesisSpec struct {
 | 
						|
	Nonce      types.BlockNonce  `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{
 | 
						|
		Nonce:      types.EncodeNonce(genesis.Nonce),
 | 
						|
		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,
 | 
						|
	}
 | 
						|
	return spec, nil
 | 
						|
}
 |