forked from cerc-io/plugeth
32150f8aa9
This PR adds support for ArrowGlacier, as defined by
https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/arrow-glacier.md
https://eips.ethereum.org/EIPS/eip-4345
> Starting with FORK_BLOCK_NUMBER the client will calculate the difficulty based on a fake block number suggesting to the client that the difficulty bomb is adjusting 10,700,000 blocks later than the actual block number.
This also adds support for evm t8n to return the calculated difficulty, so it can be used to construct test.
239 lines
8.2 KiB
Go
239 lines
8.2 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// Package ethconfig contains the configuration of the ETH and LES protocols.
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package ethconfig
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import (
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"math/big"
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"os"
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"os/user"
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"path/filepath"
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"runtime"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus"
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"github.com/ethereum/go-ethereum/consensus/clique"
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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/eth/downloader"
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"github.com/ethereum/go-ethereum/eth/gasprice"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/miner"
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"github.com/ethereum/go-ethereum/node"
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"github.com/ethereum/go-ethereum/params"
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)
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// FullNodeGPO contains default gasprice oracle settings for full node.
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var FullNodeGPO = gasprice.Config{
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Blocks: 20,
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Percentile: 60,
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MaxHeaderHistory: 1024,
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MaxBlockHistory: 1024,
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MaxPrice: gasprice.DefaultMaxPrice,
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IgnorePrice: gasprice.DefaultIgnorePrice,
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}
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// LightClientGPO contains default gasprice oracle settings for light client.
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var LightClientGPO = gasprice.Config{
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Blocks: 2,
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Percentile: 60,
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MaxHeaderHistory: 300,
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MaxBlockHistory: 5,
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MaxPrice: gasprice.DefaultMaxPrice,
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IgnorePrice: gasprice.DefaultIgnorePrice,
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}
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// Defaults contains default settings for use on the Ethereum main net.
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var Defaults = Config{
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SyncMode: downloader.SnapSync,
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Ethash: ethash.Config{
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CacheDir: "ethash",
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CachesInMem: 2,
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CachesOnDisk: 3,
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CachesLockMmap: false,
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DatasetsInMem: 1,
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DatasetsOnDisk: 2,
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DatasetsLockMmap: false,
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},
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NetworkId: 1,
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TxLookupLimit: 2350000,
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LightPeers: 100,
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UltraLightFraction: 75,
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DatabaseCache: 512,
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TrieCleanCache: 154,
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TrieCleanCacheJournal: "triecache",
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TrieCleanCacheRejournal: 60 * time.Minute,
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TrieDirtyCache: 256,
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TrieTimeout: 60 * time.Minute,
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SnapshotCache: 102,
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Miner: miner.Config{
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GasCeil: 8000000,
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GasPrice: big.NewInt(params.GWei),
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Recommit: 3 * time.Second,
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},
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TxPool: core.DefaultTxPoolConfig,
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RPCGasCap: 50000000,
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RPCEVMTimeout: 5 * time.Second,
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GPO: FullNodeGPO,
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RPCTxFeeCap: 1, // 1 ether
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}
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func init() {
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home := os.Getenv("HOME")
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if home == "" {
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if user, err := user.Current(); err == nil {
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home = user.HomeDir
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}
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}
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if runtime.GOOS == "darwin" {
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Defaults.Ethash.DatasetDir = filepath.Join(home, "Library", "Ethash")
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} else if runtime.GOOS == "windows" {
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localappdata := os.Getenv("LOCALAPPDATA")
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if localappdata != "" {
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Defaults.Ethash.DatasetDir = filepath.Join(localappdata, "Ethash")
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} else {
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Defaults.Ethash.DatasetDir = filepath.Join(home, "AppData", "Local", "Ethash")
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}
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} else {
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Defaults.Ethash.DatasetDir = filepath.Join(home, ".ethash")
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}
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}
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//go:generate gencodec -type Config -formats toml -out gen_config.go
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// Config contains configuration options for of the ETH and LES protocols.
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type Config struct {
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// The genesis block, which is inserted if the database is empty.
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// If nil, the Ethereum main net block is used.
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Genesis *core.Genesis `toml:",omitempty"`
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// Protocol options
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NetworkId uint64 // Network ID to use for selecting peers to connect to
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SyncMode downloader.SyncMode
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// This can be set to list of enrtree:// URLs which will be queried for
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// for nodes to connect to.
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EthDiscoveryURLs []string
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SnapDiscoveryURLs []string
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NoPruning bool // Whether to disable pruning and flush everything to disk
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NoPrefetch bool // Whether to disable prefetching and only load state on demand
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TxLookupLimit uint64 `toml:",omitempty"` // The maximum number of blocks from head whose tx indices are reserved.
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// Whitelist of required block number -> hash values to accept
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Whitelist map[uint64]common.Hash `toml:"-"`
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// Light client options
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LightServ int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests
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LightIngress int `toml:",omitempty"` // Incoming bandwidth limit for light servers
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LightEgress int `toml:",omitempty"` // Outgoing bandwidth limit for light servers
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LightPeers int `toml:",omitempty"` // Maximum number of LES client peers
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LightNoPrune bool `toml:",omitempty"` // Whether to disable light chain pruning
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LightNoSyncServe bool `toml:",omitempty"` // Whether to serve light clients before syncing
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SyncFromCheckpoint bool `toml:",omitempty"` // Whether to sync the header chain from the configured checkpoint
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// Ultra Light client options
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UltraLightServers []string `toml:",omitempty"` // List of trusted ultra light servers
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UltraLightFraction int `toml:",omitempty"` // Percentage of trusted servers to accept an announcement
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UltraLightOnlyAnnounce bool `toml:",omitempty"` // Whether to only announce headers, or also serve them
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// Database options
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SkipBcVersionCheck bool `toml:"-"`
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DatabaseHandles int `toml:"-"`
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DatabaseCache int
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DatabaseFreezer string
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TrieCleanCache int
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TrieCleanCacheJournal string `toml:",omitempty"` // Disk journal directory for trie cache to survive node restarts
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TrieCleanCacheRejournal time.Duration `toml:",omitempty"` // Time interval to regenerate the journal for clean cache
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TrieDirtyCache int
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TrieTimeout time.Duration
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SnapshotCache int
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Preimages bool
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// Mining options
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Miner miner.Config
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// Ethash options
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Ethash ethash.Config
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// Transaction pool options
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TxPool core.TxPoolConfig
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// Gas Price Oracle options
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GPO gasprice.Config
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// Enables tracking of SHA3 preimages in the VM
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EnablePreimageRecording bool
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// Miscellaneous options
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DocRoot string `toml:"-"`
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// RPCGasCap is the global gas cap for eth-call variants.
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RPCGasCap uint64
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// RPCEVMTimeout is the global timeout for eth-call.
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RPCEVMTimeout time.Duration
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// RPCTxFeeCap is the global transaction fee(price * gaslimit) cap for
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// send-transction variants. The unit is ether.
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RPCTxFeeCap float64
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// Checkpoint is a hardcoded checkpoint which can be nil.
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Checkpoint *params.TrustedCheckpoint `toml:",omitempty"`
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// CheckpointOracle is the configuration for checkpoint oracle.
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CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
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// Arrow Glacier block override (TODO: remove after the fork)
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OverrideArrowGlacier *big.Int `toml:",omitempty"`
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}
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// CreateConsensusEngine creates a consensus engine for the given chain configuration.
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func CreateConsensusEngine(stack *node.Node, chainConfig *params.ChainConfig, config *ethash.Config, notify []string, noverify bool, db ethdb.Database) consensus.Engine {
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// If proof-of-authority is requested, set it up
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if chainConfig.Clique != nil {
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return clique.New(chainConfig.Clique, db)
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}
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// Otherwise assume proof-of-work
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switch config.PowMode {
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case ethash.ModeFake:
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log.Warn("Ethash used in fake mode")
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case ethash.ModeTest:
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log.Warn("Ethash used in test mode")
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case ethash.ModeShared:
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log.Warn("Ethash used in shared mode")
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}
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engine := ethash.New(ethash.Config{
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PowMode: config.PowMode,
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CacheDir: stack.ResolvePath(config.CacheDir),
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CachesInMem: config.CachesInMem,
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CachesOnDisk: config.CachesOnDisk,
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CachesLockMmap: config.CachesLockMmap,
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DatasetDir: config.DatasetDir,
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DatasetsInMem: config.DatasetsInMem,
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DatasetsOnDisk: config.DatasetsOnDisk,
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DatasetsLockMmap: config.DatasetsLockMmap,
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NotifyFull: config.NotifyFull,
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}, notify, noverify)
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engine.SetThreads(-1) // Disable CPU mining
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return engine
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}
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