123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339 |
- // Copyright 2016 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library 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 Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package params
- import (
- "fmt"
- "math/big"
- "github.com/ethereum/go-ethereum/common"
- )
- var (
- MainnetGenesisHash = common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3") // Mainnet genesis hash to enforce below configs on
- TestnetGenesisHash = common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d") // Testnet genesis hash to enforce below configs on
- )
- var (
- // MainnetChainConfig is the chain parameters to run a node on the main network.
- MainnetChainConfig = &ChainConfig{
- ChainId: big.NewInt(1),
- HomesteadBlock: big.NewInt(1150000),
- DAOForkBlock: big.NewInt(1920000),
- DAOForkSupport: true,
- EIP150Block: big.NewInt(2463000),
- EIP150Hash: common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
- EIP155Block: big.NewInt(2675000),
- EIP158Block: big.NewInt(2675000),
- ByzantiumBlock: big.NewInt(4370000),
- ConstantinopleBlock: nil,
- Ethash: new(EthashConfig),
- }
- // TestnetChainConfig contains the chain parameters to run a node on the Ropsten test network.
- TestnetChainConfig = &ChainConfig{
- ChainId: big.NewInt(3),
- HomesteadBlock: big.NewInt(0),
- DAOForkBlock: nil,
- DAOForkSupport: true,
- EIP150Block: big.NewInt(0),
- EIP150Hash: common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d"),
- EIP155Block: big.NewInt(10),
- EIP158Block: big.NewInt(10),
- ByzantiumBlock: big.NewInt(1700000),
- ConstantinopleBlock: nil,
- Ethash: new(EthashConfig),
- }
- // RinkebyChainConfig contains the chain parameters to run a node on the Rinkeby test network.
- RinkebyChainConfig = &ChainConfig{
- ChainId: big.NewInt(4),
- HomesteadBlock: big.NewInt(1),
- DAOForkBlock: nil,
- DAOForkSupport: true,
- EIP150Block: big.NewInt(2),
- EIP150Hash: common.HexToHash("0x9b095b36c15eaf13044373aef8ee0bd3a382a5abb92e402afa44b8249c3a90e9"),
- EIP155Block: big.NewInt(3),
- EIP158Block: big.NewInt(3),
- ByzantiumBlock: big.NewInt(1035301),
- ConstantinopleBlock: nil,
- Clique: &CliqueConfig{
- Period: 15,
- Epoch: 30000,
- },
- }
- // AllEthashProtocolChanges contains every protocol change (EIPs) introduced
- // and accepted by the Ethereum core developers into the Ethash consensus.
- //
- // This configuration is intentionally not using keyed fields to force anyone
- // adding flags to the config to also have to set these fields.
- AllEthashProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, new(EthashConfig), nil}
- // AllCliqueProtocolChanges contains every protocol change (EIPs) introduced
- // and accepted by the Ethereum core developers into the Clique consensus.
- //
- // This configuration is intentionally not using keyed fields to force anyone
- // adding flags to the config to also have to set these fields.
- AllCliqueProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}}
- TestChainConfig = &ChainConfig{big.NewInt(1), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, new(EthashConfig), nil}
- TestRules = TestChainConfig.Rules(new(big.Int))
- )
- // ChainConfig is the core config which determines the blockchain settings.
- //
- // ChainConfig is stored in the database on a per block basis. This means
- // that any network, identified by its genesis block, can have its own
- // set of configuration options.
- type ChainConfig struct {
- ChainId *big.Int `json:"chainId"` // Chain id identifies the current chain and is used for replay protection
- HomesteadBlock *big.Int `json:"homesteadBlock,omitempty"` // Homestead switch block (nil = no fork, 0 = already homestead)
- DAOForkBlock *big.Int `json:"daoForkBlock,omitempty"` // TheDAO hard-fork switch block (nil = no fork)
- DAOForkSupport bool `json:"daoForkSupport,omitempty"` // Whether the nodes supports or opposes the DAO hard-fork
- // EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150)
- EIP150Block *big.Int `json:"eip150Block,omitempty"` // EIP150 HF block (nil = no fork)
- EIP150Hash common.Hash `json:"eip150Hash,omitempty"` // EIP150 HF hash (needed for header only clients as only gas pricing changed)
- EIP155Block *big.Int `json:"eip155Block,omitempty"` // EIP155 HF block
- EIP158Block *big.Int `json:"eip158Block,omitempty"` // EIP158 HF block
- ByzantiumBlock *big.Int `json:"byzantiumBlock,omitempty"` // Byzantium switch block (nil = no fork, 0 = already on byzantium)
- ConstantinopleBlock *big.Int `json:"constantinopleBlock,omitempty"` // Constantinople switch block (nil = no fork, 0 = already activated)
- // Various consensus engines
- Ethash *EthashConfig `json:"ethash,omitempty"`
- Clique *CliqueConfig `json:"clique,omitempty"`
- }
- // EthashConfig is the consensus engine configs for proof-of-work based sealing.
- type EthashConfig struct{}
- // String implements the stringer interface, returning the consensus engine details.
- func (c *EthashConfig) String() string {
- return "ethash"
- }
- // CliqueConfig is the consensus engine configs for proof-of-authority based sealing.
- type CliqueConfig struct {
- Period uint64 `json:"period"` // Number of seconds between blocks to enforce
- Epoch uint64 `json:"epoch"` // Epoch length to reset votes and checkpoint
- }
- // String implements the stringer interface, returning the consensus engine details.
- func (c *CliqueConfig) String() string {
- return "clique"
- }
- // String implements the fmt.Stringer interface.
- func (c *ChainConfig) String() string {
- var engine interface{}
- switch {
- case c.Ethash != nil:
- engine = c.Ethash
- case c.Clique != nil:
- engine = c.Clique
- default:
- engine = "unknown"
- }
- return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Engine: %v}",
- c.ChainId,
- c.HomesteadBlock,
- c.DAOForkBlock,
- c.DAOForkSupport,
- c.EIP150Block,
- c.EIP155Block,
- c.EIP158Block,
- c.ByzantiumBlock,
- c.ConstantinopleBlock,
- engine,
- )
- }
- // IsHomestead returns whether num is either equal to the homestead block or greater.
- func (c *ChainConfig) IsHomestead(num *big.Int) bool {
- return isForked(c.HomesteadBlock, num)
- }
- // IsDAO returns whether num is either equal to the DAO fork block or greater.
- func (c *ChainConfig) IsDAOFork(num *big.Int) bool {
- return isForked(c.DAOForkBlock, num)
- }
- func (c *ChainConfig) IsEIP150(num *big.Int) bool {
- return isForked(c.EIP150Block, num)
- }
- func (c *ChainConfig) IsEIP155(num *big.Int) bool {
- return isForked(c.EIP155Block, num)
- }
- func (c *ChainConfig) IsEIP158(num *big.Int) bool {
- return isForked(c.EIP158Block, num)
- }
- func (c *ChainConfig) IsByzantium(num *big.Int) bool {
- return isForked(c.ByzantiumBlock, num)
- }
- func (c *ChainConfig) IsConstantinople(num *big.Int) bool {
- return isForked(c.ConstantinopleBlock, num)
- }
- // GasTable returns the gas table corresponding to the current phase (homestead or homestead reprice).
- //
- // The returned GasTable's fields shouldn't, under any circumstances, be changed.
- func (c *ChainConfig) GasTable(num *big.Int) GasTable {
- if num == nil {
- return GasTableHomestead
- }
- switch {
- case c.IsEIP158(num):
- return GasTableEIP158
- case c.IsEIP150(num):
- return GasTableEIP150
- default:
- return GasTableHomestead
- }
- }
- // CheckCompatible checks whether scheduled fork transitions have been imported
- // with a mismatching chain configuration.
- func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *ConfigCompatError {
- bhead := new(big.Int).SetUint64(height)
- // Iterate checkCompatible to find the lowest conflict.
- var lasterr *ConfigCompatError
- for {
- err := c.checkCompatible(newcfg, bhead)
- if err == nil || (lasterr != nil && err.RewindTo == lasterr.RewindTo) {
- break
- }
- lasterr = err
- bhead.SetUint64(err.RewindTo)
- }
- return lasterr
- }
- func (c *ChainConfig) checkCompatible(newcfg *ChainConfig, head *big.Int) *ConfigCompatError {
- if isForkIncompatible(c.HomesteadBlock, newcfg.HomesteadBlock, head) {
- return newCompatError("Homestead fork block", c.HomesteadBlock, newcfg.HomesteadBlock)
- }
- if isForkIncompatible(c.DAOForkBlock, newcfg.DAOForkBlock, head) {
- return newCompatError("DAO fork block", c.DAOForkBlock, newcfg.DAOForkBlock)
- }
- if c.IsDAOFork(head) && c.DAOForkSupport != newcfg.DAOForkSupport {
- return newCompatError("DAO fork support flag", c.DAOForkBlock, newcfg.DAOForkBlock)
- }
- if isForkIncompatible(c.EIP150Block, newcfg.EIP150Block, head) {
- return newCompatError("EIP150 fork block", c.EIP150Block, newcfg.EIP150Block)
- }
- if isForkIncompatible(c.EIP155Block, newcfg.EIP155Block, head) {
- return newCompatError("EIP155 fork block", c.EIP155Block, newcfg.EIP155Block)
- }
- if isForkIncompatible(c.EIP158Block, newcfg.EIP158Block, head) {
- return newCompatError("EIP158 fork block", c.EIP158Block, newcfg.EIP158Block)
- }
- if c.IsEIP158(head) && !configNumEqual(c.ChainId, newcfg.ChainId) {
- return newCompatError("EIP158 chain ID", c.EIP158Block, newcfg.EIP158Block)
- }
- if isForkIncompatible(c.ByzantiumBlock, newcfg.ByzantiumBlock, head) {
- return newCompatError("Byzantium fork block", c.ByzantiumBlock, newcfg.ByzantiumBlock)
- }
- if isForkIncompatible(c.ConstantinopleBlock, newcfg.ConstantinopleBlock, head) {
- return newCompatError("Constantinople fork block", c.ConstantinopleBlock, newcfg.ConstantinopleBlock)
- }
- return nil
- }
- // isForkIncompatible returns true if a fork scheduled at s1 cannot be rescheduled to
- // block s2 because head is already past the fork.
- func isForkIncompatible(s1, s2, head *big.Int) bool {
- return (isForked(s1, head) || isForked(s2, head)) && !configNumEqual(s1, s2)
- }
- // isForked returns whether a fork scheduled at block s is active at the given head block.
- func isForked(s, head *big.Int) bool {
- if s == nil || head == nil {
- return false
- }
- return s.Cmp(head) <= 0
- }
- func configNumEqual(x, y *big.Int) bool {
- if x == nil {
- return y == nil
- }
- if y == nil {
- return x == nil
- }
- return x.Cmp(y) == 0
- }
- // ConfigCompatError is raised if the locally-stored blockchain is initialised with a
- // ChainConfig that would alter the past.
- type ConfigCompatError struct {
- What string
- // block numbers of the stored and new configurations
- StoredConfig, NewConfig *big.Int
- // the block number to which the local chain must be rewound to correct the error
- RewindTo uint64
- }
- func newCompatError(what string, storedblock, newblock *big.Int) *ConfigCompatError {
- var rew *big.Int
- switch {
- case storedblock == nil:
- rew = newblock
- case newblock == nil || storedblock.Cmp(newblock) < 0:
- rew = storedblock
- default:
- rew = newblock
- }
- err := &ConfigCompatError{what, storedblock, newblock, 0}
- if rew != nil && rew.Sign() > 0 {
- err.RewindTo = rew.Uint64() - 1
- }
- return err
- }
- func (err *ConfigCompatError) Error() string {
- return fmt.Sprintf("mismatching %s in database (have %d, want %d, rewindto %d)", err.What, err.StoredConfig, err.NewConfig, err.RewindTo)
- }
- // Rules wraps ChainConfig and is merely syntatic sugar or can be used for functions
- // that do not have or require information about the block.
- //
- // Rules is a one time interface meaning that it shouldn't be used in between transition
- // phases.
- type Rules struct {
- ChainId *big.Int
- IsHomestead, IsEIP150, IsEIP155, IsEIP158 bool
- IsByzantium bool
- }
- func (c *ChainConfig) Rules(num *big.Int) Rules {
- chainId := c.ChainId
- if chainId == nil {
- chainId = new(big.Int)
- }
- return Rules{ChainId: new(big.Int).Set(chainId), IsHomestead: c.IsHomestead(num), IsEIP150: c.IsEIP150(num), IsEIP155: c.IsEIP155(num), IsEIP158: c.IsEIP158(num), IsByzantium: c.IsByzantium(num)}
- }
|