405 lines
16 KiB
Go
405 lines
16 KiB
Go
// 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"
|
|
)
|
|
|
|
// Genesis hashes to enforce below configs on.
|
|
var (
|
|
MainnetGenesisHash = common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3")
|
|
TestnetGenesisHash = common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d")
|
|
RinkebyGenesisHash = common.HexToHash("0x6341fd3daf94b748c72ced5a5b26028f2474f5f00d824504e4fa37a75767e177")
|
|
)
|
|
|
|
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),
|
|
}
|
|
|
|
// MainnetTrustedCheckpoint contains the light client trusted checkpoint for the main network.
|
|
MainnetTrustedCheckpoint = &TrustedCheckpoint{
|
|
Name: "mainnet",
|
|
SectionIndex: 206,
|
|
SectionHead: common.HexToHash("0x9fa677c7c0580136f5a86d9b2fd29b112e531f0284396298b8809bcb6787b538"),
|
|
CHTRoot: common.HexToHash("0x7f32dfb29e341b4c8c10ea2e06a812bcea470366f635b7a8b3d0856684cd76f4"),
|
|
BloomRoot: common.HexToHash("0x0169e174f0a8172aec217556d8a25c7ba7ca52aacff170325230a75740ff1eaf"),
|
|
}
|
|
|
|
// 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: big.NewInt(4230000),
|
|
Ethash: new(EthashConfig),
|
|
}
|
|
|
|
// TestnetTrustedCheckpoint contains the light client trusted checkpoint for the Ropsten test network.
|
|
TestnetTrustedCheckpoint = &TrustedCheckpoint{
|
|
Name: "testnet",
|
|
SectionIndex: 136,
|
|
SectionHead: common.HexToHash("0xe5d80bb08d92bbc12dfe510c64cba01eafcbb4ba585e7c7ab7f8a93c6f295ab3"),
|
|
CHTRoot: common.HexToHash("0xe3ca77ab0cb51eec74f4f7458e36aee207c68768387b39cb0bcff0940a6264d8"),
|
|
BloomRoot: common.HexToHash("0x30c8eeadac5539d3dcd6e88915d1a07cb2f3a1d6ebe7e553e3ee783c04c68c2d"),
|
|
}
|
|
|
|
// 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,
|
|
},
|
|
}
|
|
|
|
// RinkebyTrustedCheckpoint contains the light client trusted checkpoint for the Rinkeby test network.
|
|
RinkebyTrustedCheckpoint = &TrustedCheckpoint{
|
|
Name: "rinkeby",
|
|
SectionIndex: 103,
|
|
SectionHead: common.HexToHash("0x9f38b903852831bf4fa7992f7fd43d8b26da2deb82b421fb845cf6faee54e056"),
|
|
CHTRoot: common.HexToHash("0x2d710c2cea468d2e604838000d658ee213e4abb07f90c4f71f5cd7f8510aa708"),
|
|
BloomRoot: common.HexToHash("0xcc401060280c2cc82697ea5ecef8cac61e52063c37533a2e9609332419704d5f"),
|
|
}
|
|
|
|
// 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), 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), 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), big.NewInt(0), nil, new(EthashConfig), nil}
|
|
TestRules = TestChainConfig.Rules(new(big.Int))
|
|
)
|
|
|
|
// TrustedCheckpoint represents a set of post-processed trie roots (CHT and
|
|
// BloomTrie) associated with the appropriate section index and head hash. It is
|
|
// used to start light syncing from this checkpoint and avoid downloading the
|
|
// entire header chain while still being able to securely access old headers/logs.
|
|
type TrustedCheckpoint struct {
|
|
Name string `json:"-"`
|
|
SectionIndex uint64 `json:"sectionIndex"`
|
|
SectionHead common.Hash `json:"sectionHead"`
|
|
CHTRoot common.Hash `json:"chtRoot"`
|
|
BloomRoot common.Hash `json:"bloomRoot"`
|
|
}
|
|
|
|
// 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"` // chainId 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)
|
|
EWASMBlock *big.Int `json:"ewasmBlock,omitempty"` // EWASM 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)
|
|
}
|
|
|
|
// IsDAOFork 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)
|
|
}
|
|
|
|
// IsEIP150 returns whether num is either equal to the EIP150 fork block or greater.
|
|
func (c *ChainConfig) IsEIP150(num *big.Int) bool {
|
|
return isForked(c.EIP150Block, num)
|
|
}
|
|
|
|
// IsEIP155 returns whether num is either equal to the EIP155 fork block or greater.
|
|
func (c *ChainConfig) IsEIP155(num *big.Int) bool {
|
|
return isForked(c.EIP155Block, num)
|
|
}
|
|
|
|
// IsEIP158 returns whether num is either equal to the EIP158 fork block or greater.
|
|
func (c *ChainConfig) IsEIP158(num *big.Int) bool {
|
|
return isForked(c.EIP158Block, num)
|
|
}
|
|
|
|
// IsByzantium returns whether num is either equal to the Byzantium fork block or greater.
|
|
func (c *ChainConfig) IsByzantium(num *big.Int) bool {
|
|
return isForked(c.ByzantiumBlock, num)
|
|
}
|
|
|
|
// IsConstantinople returns whether num is either equal to the Constantinople fork block or greater.
|
|
func (c *ChainConfig) IsConstantinople(num *big.Int) bool {
|
|
return isForked(c.ConstantinopleBlock, num)
|
|
}
|
|
|
|
// IsEWASM returns whether num represents a block number after the EWASM fork
|
|
func (c *ChainConfig) IsEWASM(num *big.Int) bool {
|
|
return isForked(c.EWASMBlock, 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.IsConstantinople(num):
|
|
return GasTableConstantinople
|
|
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)
|
|
}
|
|
if isForkIncompatible(c.EWASMBlock, newcfg.EWASMBlock, head) {
|
|
return newCompatError("ewasm fork block", c.EWASMBlock, newcfg.EWASMBlock)
|
|
}
|
|
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 syntactic 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, IsConstantinople bool
|
|
}
|
|
|
|
// Rules ensures c's ChainID is not nil.
|
|
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),
|
|
IsConstantinople: c.IsConstantinople(num),
|
|
}
|
|
}
|