go-ethereum/eth/ethconfig/config.go

186 lines
7.0 KiB
Go

// Copyright 2021 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 ethconfig contains the configuration of the ETH and LES protocols.
package ethconfig
import (
"errors"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/beacon"
"github.com/ethereum/go-ethereum/consensus/clique"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/txpool/blobpool"
"github.com/ethereum/go-ethereum/core/txpool/legacypool"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/miner"
"github.com/ethereum/go-ethereum/params"
)
// FullNodeGPO contains default gasprice oracle settings for full node.
var FullNodeGPO = gasprice.Config{
Blocks: 20,
Percentile: 60,
MaxHeaderHistory: 1024,
MaxBlockHistory: 1024,
MaxPrice: gasprice.DefaultMaxPrice,
IgnorePrice: gasprice.DefaultIgnorePrice,
}
// Defaults contains default settings for use on the Ethereum main net.
var Defaults = Config{
SyncMode: downloader.SnapSync,
NetworkId: 0, // enable auto configuration of networkID == chainID
TxLookupLimit: 2350000,
TransactionHistory: 2350000,
StateHistory: params.FullImmutabilityThreshold,
LightPeers: 100,
DatabaseCache: 512,
TrieCleanCache: 154,
TrieDirtyCache: 256,
TrieTimeout: 60 * time.Minute,
SnapshotCache: 102,
FilterLogCacheSize: 32,
Miner: miner.DefaultConfig,
TxPool: legacypool.DefaultConfig,
BlobPool: blobpool.DefaultConfig,
RPCGasCap: 50000000,
RPCEVMTimeout: 5 * time.Second,
GPO: FullNodeGPO,
RPCTxFeeCap: 1, // 1 ether
}
//go:generate go run github.com/fjl/gencodec -type Config -formats toml -out gen_config.go
// Config contains configuration options for ETH and LES protocols.
type Config struct {
// The genesis block, which is inserted if the database is empty.
// If nil, the Ethereum main net block is used.
Genesis *core.Genesis `toml:",omitempty"`
// Network ID separates blockchains on the peer-to-peer networking level. When left
// zero, the chain ID is used as network ID.
NetworkId uint64
SyncMode downloader.SyncMode
// This can be set to list of enrtree:// URLs which will be queried for
// nodes to connect to.
EthDiscoveryURLs []string
SnapDiscoveryURLs []string
NoPruning bool // Whether to disable pruning and flush everything to disk
NoPrefetch bool // Whether to disable prefetching and only load state on demand
// Deprecated, use 'TransactionHistory' instead.
TxLookupLimit uint64 `toml:",omitempty"` // The maximum number of blocks from head whose tx indices are reserved.
TransactionHistory uint64 `toml:",omitempty"` // The maximum number of blocks from head whose tx indices are reserved.
StateHistory uint64 `toml:",omitempty"` // The maximum number of blocks from head whose state histories are reserved.
// State scheme represents the scheme used to store ethereum states and trie
// nodes on top. It can be 'hash', 'path', or none which means use the scheme
// consistent with persistent state.
StateScheme string `toml:",omitempty"`
// RequiredBlocks is a set of block number -> hash mappings which must be in the
// canonical chain of all remote peers. Setting the option makes geth verify the
// presence of these blocks for every new peer connection.
RequiredBlocks map[uint64]common.Hash `toml:"-"`
// Light client options
LightServ int `toml:",omitempty"` // Maximum percentage of time allowed for serving LES requests
LightIngress int `toml:",omitempty"` // Incoming bandwidth limit for light servers
LightEgress int `toml:",omitempty"` // Outgoing bandwidth limit for light servers
LightPeers int `toml:",omitempty"` // Maximum number of LES client peers
LightNoPrune bool `toml:",omitempty"` // Whether to disable light chain pruning
LightNoSyncServe bool `toml:",omitempty"` // Whether to serve light clients before syncing
// Database options
SkipBcVersionCheck bool `toml:"-"`
DatabaseHandles int `toml:"-"`
DatabaseCache int
DatabaseFreezer string
TrieCleanCache int
TrieDirtyCache int
TrieTimeout time.Duration
SnapshotCache int
Preimages bool
// This is the number of blocks for which logs will be cached in the filter system.
FilterLogCacheSize int
// Mining options
Miner miner.Config
// Transaction pool options
TxPool legacypool.Config
BlobPool blobpool.Config
// Gas Price Oracle options
GPO gasprice.Config
// Enables tracking of SHA3 preimages in the VM
EnablePreimageRecording bool
// Enables prefetching trie nodes for read operations too
EnableWitnessCollection bool `toml:"-"`
// Enables VM tracing
VMTrace string
VMTraceJsonConfig string
// Miscellaneous options
DocRoot string `toml:"-"`
// RPCGasCap is the global gas cap for eth-call variants.
RPCGasCap uint64
// RPCEVMTimeout is the global timeout for eth-call.
RPCEVMTimeout time.Duration
// RPCTxFeeCap is the global transaction fee(price * gaslimit) cap for
// send-transaction variants. The unit is ether.
RPCTxFeeCap float64
// OverrideCancun (TODO: remove after the fork)
OverrideCancun *uint64 `toml:",omitempty"`
// OverrideVerkle (TODO: remove after the fork)
OverrideVerkle *uint64 `toml:",omitempty"`
}
// CreateConsensusEngine creates a consensus engine for the given chain config.
// Clique is allowed for now to live standalone, but ethash is forbidden and can
// only exist on already merged networks.
func CreateConsensusEngine(config *params.ChainConfig, db ethdb.Database) (consensus.Engine, error) {
// Geth v1.14.0 dropped support for non-merged networks in any consensus
// mode. If such a network is requested, reject startup.
if !config.TerminalTotalDifficultyPassed {
return nil, errors.New("only PoS networks are supported, please transition old ones with Geth v1.13.x")
}
// Wrap previously supported consensus engines into their post-merge counterpart
if config.Clique != nil {
return beacon.New(clique.New(config.Clique, db)), nil
}
return beacon.New(ethash.NewFaker()), nil
}