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Diffstat (limited to 'cmd/puppeth/genesis.go')
| -rw-r--r-- | cmd/puppeth/genesis.go | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/cmd/puppeth/genesis.go b/cmd/puppeth/genesis.go new file mode 100644 index 000000000..2b66df43c --- /dev/null +++ b/cmd/puppeth/genesis.go @@ -0,0 +1,208 @@ +// Copyright 2017 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 main + +import ( + "encoding/binary" + "errors" + "math" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/common/hexutil" + "github.com/ethereum/go-ethereum/consensus/ethash" + "github.com/ethereum/go-ethereum/core" + "github.com/ethereum/go-ethereum/params" +) + +// parityChainSpec is the chain specification format used by Parity. +type parityChainSpec struct { + Name string `json:"name"` + Engine struct { + Ethash struct { + Params struct { + MinimumDifficulty *hexutil.Big `json:"minimumDifficulty"` + DifficultyBoundDivisor *hexutil.Big `json:"difficultyBoundDivisor"` + GasLimitBoundDivisor *hexutil.Big `json:"gasLimitBoundDivisor"` + DurationLimit *hexutil.Big `json:"durationLimit"` + BlockReward *hexutil.Big `json:"blockReward"` + HomesteadTransition uint64 `json:"homesteadTransition"` + EIP150Transition uint64 `json:"eip150Transition"` + EIP160Transition uint64 `json:"eip160Transition"` + EIP161abcTransition uint64 `json:"eip161abcTransition"` + EIP161dTransition uint64 `json:"eip161dTransition"` + EIP649Reward *hexutil.Big `json:"eip649Reward"` + EIP100bTransition uint64 `json:"eip100bTransition"` + EIP649Transition uint64 `json:"eip649Transition"` + } `json:"params"` + } `json:"Ethash"` + } `json:"engine"` + + Params struct { + MaximumExtraDataSize hexutil.Uint64 `json:"maximumExtraDataSize"` + MinGasLimit *hexutil.Big `json:"minGasLimit"` + NetworkID hexutil.Uint64 `json:"networkID"` + MaxCodeSize uint64 `json:"maxCodeSize"` + EIP155Transition uint64 `json:"eip155Transition"` + EIP98Transition uint64 `json:"eip98Transition"` + EIP86Transition uint64 `json:"eip86Transition"` + EIP140Transition uint64 `json:"eip140Transition"` + EIP211Transition uint64 `json:"eip211Transition"` + EIP214Transition uint64 `json:"eip214Transition"` + EIP658Transition uint64 `json:"eip658Transition"` + } `json:"params"` + + Genesis struct { + Seal struct { + Ethereum struct { + Nonce hexutil.Bytes `json:"nonce"` + MixHash hexutil.Bytes `json:"mixHash"` + } `json:"ethereum"` + } `json:"seal"` + + Difficulty *hexutil.Big `json:"difficulty"` + Author common.Address `json:"author"` + Timestamp hexutil.Uint64 `json:"timestamp"` + ParentHash common.Hash `json:"parentHash"` + ExtraData hexutil.Bytes `json:"extraData"` + GasLimit hexutil.Uint64 `json:"gasLimit"` + } `json:"genesis"` + + Nodes []string `json:"nodes"` + Accounts map[common.Address]*parityChainSpecAccount `json:"accounts"` +} + +// parityChainSpecAccount is the prefunded genesis account and/or precompiled +// contract definition. +type parityChainSpecAccount struct { + Balance *hexutil.Big `json:"balance"` + Nonce uint64 `json:"nonce,omitempty"` + Builtin *parityChainSpecBuiltin `json:"builtin,omitempty"` +} + +// parityChainSpecBuiltin is the precompiled contract definition. +type parityChainSpecBuiltin struct { + Name string `json:"name,omitempty"` + ActivateAt uint64 `json:"activate_at,omitempty"` + Pricing *parityChainSpecPricing `json:"pricing,omitempty"` +} + +// parityChainSpecPricing represents the different pricing models that builtin +// contracts might advertise using. +type parityChainSpecPricing struct { + Linear *parityChainSpecLinearPricing `json:"linear,omitempty"` + ModExp *parityChainSpecModExpPricing `json:"modexp,omitempty"` + AltBnPairing *parityChainSpecAltBnPairingPricing `json:"alt_bn128_pairing,omitempty"` +} + +type parityChainSpecLinearPricing struct { + Base uint64 `json:"base"` + Word uint64 `json:"word"` +} + +type parityChainSpecModExpPricing struct { + Divisor uint64 `json:"divisor"` +} + +type parityChainSpecAltBnPairingPricing struct { + Base uint64 `json:"base"` + Pair uint64 `json:"pair"` +} + +// 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, + } + spec.Engine.Ethash.Params.MinimumDifficulty = (*hexutil.Big)(params.MinimumDifficulty) + spec.Engine.Ethash.Params.DifficultyBoundDivisor = (*hexutil.Big)(params.DifficultyBoundDivisor) + spec.Engine.Ethash.Params.GasLimitBoundDivisor = (*hexutil.Big)(params.GasLimitBoundDivisor) + spec.Engine.Ethash.Params.DurationLimit = (*hexutil.Big)(params.DurationLimit) + spec.Engine.Ethash.Params.BlockReward = (*hexutil.Big)(ethash.FrontierBlockReward) + spec.Engine.Ethash.Params.HomesteadTransition = genesis.Config.HomesteadBlock.Uint64() + spec.Engine.Ethash.Params.EIP150Transition = genesis.Config.EIP150Block.Uint64() + spec.Engine.Ethash.Params.EIP160Transition = genesis.Config.EIP155Block.Uint64() + spec.Engine.Ethash.Params.EIP161abcTransition = genesis.Config.EIP158Block.Uint64() + spec.Engine.Ethash.Params.EIP161dTransition = genesis.Config.EIP158Block.Uint64() + spec.Engine.Ethash.Params.EIP649Reward = (*hexutil.Big)(ethash.ByzantiumBlockReward) + spec.Engine.Ethash.Params.EIP100bTransition = genesis.Config.ByzantiumBlock.Uint64() + spec.Engine.Ethash.Params.EIP649Transition = genesis.Config.ByzantiumBlock.Uint64() + + spec.Params.MaximumExtraDataSize = (hexutil.Uint64)(params.MaximumExtraDataSize) + spec.Params.MinGasLimit = (*hexutil.Big)(params.MinGasLimit) + spec.Params.NetworkID = (hexutil.Uint64)(genesis.Config.ChainId.Uint64()) + spec.Params.MaxCodeSize = params.MaxCodeSize + spec.Params.EIP155Transition = genesis.Config.EIP155Block.Uint64() + spec.Params.EIP98Transition = math.MaxUint64 + spec.Params.EIP86Transition = math.MaxUint64 + spec.Params.EIP140Transition = genesis.Config.ByzantiumBlock.Uint64() + spec.Params.EIP211Transition = genesis.Config.ByzantiumBlock.Uint64() + spec.Params.EIP214Transition = genesis.Config.ByzantiumBlock.Uint64() + spec.Params.EIP658Transition = genesis.Config.ByzantiumBlock.Uint64() + + spec.Genesis.Seal.Ethereum.Nonce = (hexutil.Bytes)(make([]byte, 8)) + binary.LittleEndian.PutUint64(spec.Genesis.Seal.Ethereum.Nonce[:], genesis.Nonce) + + spec.Genesis.Seal.Ethereum.MixHash = (hexutil.Bytes)(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.Address]*parityChainSpecAccount) + for address, account := range genesis.Alloc { + spec.Accounts[address] = &parityChainSpecAccount{ + Balance: (*hexutil.Big)(account.Balance), + Nonce: account.Nonce, + } + } + spec.Accounts[common.BytesToAddress([]byte{1})].Builtin = &parityChainSpecBuiltin{ + Name: "ecrecover", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 3000}}, + } + spec.Accounts[common.BytesToAddress([]byte{2})].Builtin = &parityChainSpecBuiltin{ + Name: "sha256", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 60, Word: 12}}, + } + spec.Accounts[common.BytesToAddress([]byte{3})].Builtin = &parityChainSpecBuiltin{ + Name: "ripemd160", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 600, Word: 120}}, + } + spec.Accounts[common.BytesToAddress([]byte{4})].Builtin = &parityChainSpecBuiltin{ + Name: "identity", Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 15, Word: 3}}, + } + if genesis.Config.ByzantiumBlock != nil { + spec.Accounts[common.BytesToAddress([]byte{5})].Builtin = &parityChainSpecBuiltin{ + Name: "modexp", ActivateAt: genesis.Config.ByzantiumBlock.Uint64(), Pricing: &parityChainSpecPricing{ModExp: &parityChainSpecModExpPricing{Divisor: 20}}, + } + spec.Accounts[common.BytesToAddress([]byte{6})].Builtin = &parityChainSpecBuiltin{ + Name: "alt_bn128_add", ActivateAt: genesis.Config.ByzantiumBlock.Uint64(), Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 500}}, + } + spec.Accounts[common.BytesToAddress([]byte{7})].Builtin = &parityChainSpecBuiltin{ + Name: "alt_bn128_mul", ActivateAt: genesis.Config.ByzantiumBlock.Uint64(), Pricing: &parityChainSpecPricing{Linear: &parityChainSpecLinearPricing{Base: 40000}}, + } + spec.Accounts[common.BytesToAddress([]byte{8})].Builtin = &parityChainSpecBuiltin{ + Name: "alt_bn128_pairing", ActivateAt: genesis.Config.ByzantiumBlock.Uint64(), Pricing: &parityChainSpecPricing{AltBnPairing: &parityChainSpecAltBnPairingPricing{Base: 100000, Pair: 80000}}, + } + } + return spec, nil +} |