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.
393 lines
14 KiB
Go
393 lines
14 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 les implements the Light Ethereum Subprotocol.
|
|
package les
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/accounts"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/common/hexutil"
|
|
"github.com/ethereum/go-ethereum/common/mclock"
|
|
"github.com/ethereum/go-ethereum/consensus"
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/bloombits"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/eth/ethconfig"
|
|
"github.com/ethereum/go-ethereum/eth/filters"
|
|
"github.com/ethereum/go-ethereum/eth/gasprice"
|
|
"github.com/ethereum/go-ethereum/event"
|
|
"github.com/ethereum/go-ethereum/internal/ethapi"
|
|
"github.com/ethereum/go-ethereum/les/downloader"
|
|
"github.com/ethereum/go-ethereum/les/vflux"
|
|
vfc "github.com/ethereum/go-ethereum/les/vflux/client"
|
|
"github.com/ethereum/go-ethereum/light"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
"github.com/ethereum/go-ethereum/node"
|
|
"github.com/ethereum/go-ethereum/p2p"
|
|
"github.com/ethereum/go-ethereum/p2p/enode"
|
|
"github.com/ethereum/go-ethereum/p2p/enr"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
)
|
|
|
|
type LightEthereum struct {
|
|
lesCommons
|
|
|
|
peers *serverPeerSet
|
|
reqDist *requestDistributor
|
|
retriever *retrieveManager
|
|
odr *LesOdr
|
|
relay *lesTxRelay
|
|
handler *clientHandler
|
|
txPool *light.TxPool
|
|
blockchain *light.LightChain
|
|
serverPool *vfc.ServerPool
|
|
serverPoolIterator enode.Iterator
|
|
pruner *pruner
|
|
|
|
bloomRequests chan chan *bloombits.Retrieval // Channel receiving bloom data retrieval requests
|
|
bloomIndexer *core.ChainIndexer // Bloom indexer operating during block imports
|
|
|
|
ApiBackend *LesApiBackend
|
|
eventMux *event.TypeMux
|
|
engine consensus.Engine
|
|
accountManager *accounts.Manager
|
|
netRPCService *ethapi.PublicNetAPI
|
|
|
|
p2pServer *p2p.Server
|
|
p2pConfig *p2p.Config
|
|
udpEnabled bool
|
|
}
|
|
|
|
// New creates an instance of the light client.
|
|
func New(stack *node.Node, config *ethconfig.Config) (*LightEthereum, error) {
|
|
chainDb, err := stack.OpenDatabase("lightchaindata", config.DatabaseCache, config.DatabaseHandles, "eth/db/chaindata/", false)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
lesDb, err := stack.OpenDatabase("les.client", 0, 0, "eth/db/lesclient/", false)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
chainConfig, genesisHash, genesisErr := core.SetupGenesisBlockWithOverride(chainDb, config.Genesis, config.OverrideArrowGlacier)
|
|
if _, isCompat := genesisErr.(*params.ConfigCompatError); genesisErr != nil && !isCompat {
|
|
return nil, genesisErr
|
|
}
|
|
log.Info("Initialised chain configuration", "config", chainConfig)
|
|
|
|
peers := newServerPeerSet()
|
|
leth := &LightEthereum{
|
|
lesCommons: lesCommons{
|
|
genesis: genesisHash,
|
|
config: config,
|
|
chainConfig: chainConfig,
|
|
iConfig: light.DefaultClientIndexerConfig,
|
|
chainDb: chainDb,
|
|
lesDb: lesDb,
|
|
closeCh: make(chan struct{}),
|
|
},
|
|
peers: peers,
|
|
eventMux: stack.EventMux(),
|
|
reqDist: newRequestDistributor(peers, &mclock.System{}),
|
|
accountManager: stack.AccountManager(),
|
|
engine: ethconfig.CreateConsensusEngine(stack, chainConfig, &config.Ethash, nil, false, chainDb),
|
|
bloomRequests: make(chan chan *bloombits.Retrieval),
|
|
bloomIndexer: core.NewBloomIndexer(chainDb, params.BloomBitsBlocksClient, params.HelperTrieConfirmations),
|
|
p2pServer: stack.Server(),
|
|
p2pConfig: &stack.Config().P2P,
|
|
udpEnabled: stack.Config().P2P.DiscoveryV5,
|
|
}
|
|
|
|
var prenegQuery vfc.QueryFunc
|
|
if leth.udpEnabled {
|
|
prenegQuery = leth.prenegQuery
|
|
}
|
|
leth.serverPool, leth.serverPoolIterator = vfc.NewServerPool(lesDb, []byte("serverpool:"), time.Second, prenegQuery, &mclock.System{}, config.UltraLightServers, requestList)
|
|
leth.serverPool.AddMetrics(suggestedTimeoutGauge, totalValueGauge, serverSelectableGauge, serverConnectedGauge, sessionValueMeter, serverDialedMeter)
|
|
|
|
leth.retriever = newRetrieveManager(peers, leth.reqDist, leth.serverPool.GetTimeout)
|
|
leth.relay = newLesTxRelay(peers, leth.retriever)
|
|
|
|
leth.odr = NewLesOdr(chainDb, light.DefaultClientIndexerConfig, leth.peers, leth.retriever)
|
|
leth.chtIndexer = light.NewChtIndexer(chainDb, leth.odr, params.CHTFrequency, params.HelperTrieConfirmations, config.LightNoPrune)
|
|
leth.bloomTrieIndexer = light.NewBloomTrieIndexer(chainDb, leth.odr, params.BloomBitsBlocksClient, params.BloomTrieFrequency, config.LightNoPrune)
|
|
leth.odr.SetIndexers(leth.chtIndexer, leth.bloomTrieIndexer, leth.bloomIndexer)
|
|
|
|
checkpoint := config.Checkpoint
|
|
if checkpoint == nil {
|
|
checkpoint = params.TrustedCheckpoints[genesisHash]
|
|
}
|
|
// Note: NewLightChain adds the trusted checkpoint so it needs an ODR with
|
|
// indexers already set but not started yet
|
|
if leth.blockchain, err = light.NewLightChain(leth.odr, leth.chainConfig, leth.engine, checkpoint); err != nil {
|
|
return nil, err
|
|
}
|
|
leth.chainReader = leth.blockchain
|
|
leth.txPool = light.NewTxPool(leth.chainConfig, leth.blockchain, leth.relay)
|
|
|
|
// Set up checkpoint oracle.
|
|
leth.oracle = leth.setupOracle(stack, genesisHash, config)
|
|
|
|
// Note: AddChildIndexer starts the update process for the child
|
|
leth.bloomIndexer.AddChildIndexer(leth.bloomTrieIndexer)
|
|
leth.chtIndexer.Start(leth.blockchain)
|
|
leth.bloomIndexer.Start(leth.blockchain)
|
|
|
|
// Start a light chain pruner to delete useless historical data.
|
|
leth.pruner = newPruner(chainDb, leth.chtIndexer, leth.bloomTrieIndexer)
|
|
|
|
// Rewind the chain in case of an incompatible config upgrade.
|
|
if compat, ok := genesisErr.(*params.ConfigCompatError); ok {
|
|
log.Warn("Rewinding chain to upgrade configuration", "err", compat)
|
|
leth.blockchain.SetHead(compat.RewindTo)
|
|
rawdb.WriteChainConfig(chainDb, genesisHash, chainConfig)
|
|
}
|
|
|
|
leth.ApiBackend = &LesApiBackend{stack.Config().ExtRPCEnabled(), stack.Config().AllowUnprotectedTxs, leth, nil}
|
|
gpoParams := config.GPO
|
|
if gpoParams.Default == nil {
|
|
gpoParams.Default = config.Miner.GasPrice
|
|
}
|
|
leth.ApiBackend.gpo = gasprice.NewOracle(leth.ApiBackend, gpoParams)
|
|
|
|
leth.handler = newClientHandler(config.UltraLightServers, config.UltraLightFraction, checkpoint, leth)
|
|
if leth.handler.ulc != nil {
|
|
log.Warn("Ultra light client is enabled", "trustedNodes", len(leth.handler.ulc.keys), "minTrustedFraction", leth.handler.ulc.fraction)
|
|
leth.blockchain.DisableCheckFreq()
|
|
}
|
|
|
|
leth.netRPCService = ethapi.NewPublicNetAPI(leth.p2pServer, leth.config.NetworkId)
|
|
|
|
// Register the backend on the node
|
|
stack.RegisterAPIs(leth.APIs())
|
|
stack.RegisterProtocols(leth.Protocols())
|
|
stack.RegisterLifecycle(leth)
|
|
|
|
// Check for unclean shutdown
|
|
if uncleanShutdowns, discards, err := rawdb.PushUncleanShutdownMarker(chainDb); err != nil {
|
|
log.Error("Could not update unclean-shutdown-marker list", "error", err)
|
|
} else {
|
|
if discards > 0 {
|
|
log.Warn("Old unclean shutdowns found", "count", discards)
|
|
}
|
|
for _, tstamp := range uncleanShutdowns {
|
|
t := time.Unix(int64(tstamp), 0)
|
|
log.Warn("Unclean shutdown detected", "booted", t,
|
|
"age", common.PrettyAge(t))
|
|
}
|
|
}
|
|
return leth, nil
|
|
}
|
|
|
|
// VfluxRequest sends a batch of requests to the given node through discv5 UDP TalkRequest and returns the responses
|
|
func (s *LightEthereum) VfluxRequest(n *enode.Node, reqs vflux.Requests) vflux.Replies {
|
|
if !s.udpEnabled {
|
|
return nil
|
|
}
|
|
reqsEnc, _ := rlp.EncodeToBytes(&reqs)
|
|
repliesEnc, _ := s.p2pServer.DiscV5.TalkRequest(s.serverPool.DialNode(n), "vfx", reqsEnc)
|
|
var replies vflux.Replies
|
|
if len(repliesEnc) == 0 || rlp.DecodeBytes(repliesEnc, &replies) != nil {
|
|
return nil
|
|
}
|
|
return replies
|
|
}
|
|
|
|
// vfxVersion returns the version number of the "les" service subdomain of the vflux UDP
|
|
// service, as advertised in the ENR record
|
|
func (s *LightEthereum) vfxVersion(n *enode.Node) uint {
|
|
if n.Seq() == 0 {
|
|
var err error
|
|
if !s.udpEnabled {
|
|
return 0
|
|
}
|
|
if n, err = s.p2pServer.DiscV5.RequestENR(n); n != nil && err == nil && n.Seq() != 0 {
|
|
s.serverPool.Persist(n)
|
|
} else {
|
|
return 0
|
|
}
|
|
}
|
|
|
|
var les []rlp.RawValue
|
|
if err := n.Load(enr.WithEntry("les", &les)); err != nil || len(les) < 1 {
|
|
return 0
|
|
}
|
|
var version uint
|
|
rlp.DecodeBytes(les[0], &version) // Ignore additional fields (for forward compatibility).
|
|
return version
|
|
}
|
|
|
|
// prenegQuery sends a capacity query to the given server node to determine whether
|
|
// a connection slot is immediately available
|
|
func (s *LightEthereum) prenegQuery(n *enode.Node) int {
|
|
if s.vfxVersion(n) < 1 {
|
|
// UDP query not supported, always try TCP connection
|
|
return 1
|
|
}
|
|
|
|
var requests vflux.Requests
|
|
requests.Add("les", vflux.CapacityQueryName, vflux.CapacityQueryReq{
|
|
Bias: 180,
|
|
AddTokens: []vflux.IntOrInf{{}},
|
|
})
|
|
replies := s.VfluxRequest(n, requests)
|
|
var cqr vflux.CapacityQueryReply
|
|
if replies.Get(0, &cqr) != nil || len(cqr) != 1 { // Note: Get returns an error if replies is nil
|
|
return -1
|
|
}
|
|
if cqr[0] > 0 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
type LightDummyAPI struct{}
|
|
|
|
// Etherbase is the address that mining rewards will be send to
|
|
func (s *LightDummyAPI) Etherbase() (common.Address, error) {
|
|
return common.Address{}, fmt.Errorf("mining is not supported in light mode")
|
|
}
|
|
|
|
// Coinbase is the address that mining rewards will be send to (alias for Etherbase)
|
|
func (s *LightDummyAPI) Coinbase() (common.Address, error) {
|
|
return common.Address{}, fmt.Errorf("mining is not supported in light mode")
|
|
}
|
|
|
|
// Hashrate returns the POW hashrate
|
|
func (s *LightDummyAPI) Hashrate() hexutil.Uint {
|
|
return 0
|
|
}
|
|
|
|
// Mining returns an indication if this node is currently mining.
|
|
func (s *LightDummyAPI) Mining() bool {
|
|
return false
|
|
}
|
|
|
|
// APIs returns the collection of RPC services the ethereum package offers.
|
|
// NOTE, some of these services probably need to be moved to somewhere else.
|
|
func (s *LightEthereum) APIs() []rpc.API {
|
|
apis := ethapi.GetAPIs(s.ApiBackend)
|
|
apis = append(apis, s.engine.APIs(s.BlockChain().HeaderChain())...)
|
|
return append(apis, []rpc.API{
|
|
{
|
|
Namespace: "eth",
|
|
Version: "1.0",
|
|
Service: &LightDummyAPI{},
|
|
Public: true,
|
|
}, {
|
|
Namespace: "eth",
|
|
Version: "1.0",
|
|
Service: downloader.NewPublicDownloaderAPI(s.handler.downloader, s.eventMux),
|
|
Public: true,
|
|
}, {
|
|
Namespace: "eth",
|
|
Version: "1.0",
|
|
Service: filters.NewPublicFilterAPI(s.ApiBackend, true, 5*time.Minute),
|
|
Public: true,
|
|
}, {
|
|
Namespace: "net",
|
|
Version: "1.0",
|
|
Service: s.netRPCService,
|
|
Public: true,
|
|
}, {
|
|
Namespace: "les",
|
|
Version: "1.0",
|
|
Service: NewPrivateLightAPI(&s.lesCommons),
|
|
Public: false,
|
|
}, {
|
|
Namespace: "vflux",
|
|
Version: "1.0",
|
|
Service: s.serverPool.API(),
|
|
Public: false,
|
|
},
|
|
}...)
|
|
}
|
|
|
|
func (s *LightEthereum) ResetWithGenesisBlock(gb *types.Block) {
|
|
s.blockchain.ResetWithGenesisBlock(gb)
|
|
}
|
|
|
|
func (s *LightEthereum) BlockChain() *light.LightChain { return s.blockchain }
|
|
func (s *LightEthereum) TxPool() *light.TxPool { return s.txPool }
|
|
func (s *LightEthereum) Engine() consensus.Engine { return s.engine }
|
|
func (s *LightEthereum) LesVersion() int { return int(ClientProtocolVersions[0]) }
|
|
func (s *LightEthereum) Downloader() *downloader.Downloader { return s.handler.downloader }
|
|
func (s *LightEthereum) EventMux() *event.TypeMux { return s.eventMux }
|
|
|
|
// Protocols returns all the currently configured network protocols to start.
|
|
func (s *LightEthereum) Protocols() []p2p.Protocol {
|
|
return s.makeProtocols(ClientProtocolVersions, s.handler.runPeer, func(id enode.ID) interface{} {
|
|
if p := s.peers.peer(id.String()); p != nil {
|
|
return p.Info()
|
|
}
|
|
return nil
|
|
}, s.serverPoolIterator)
|
|
}
|
|
|
|
// Start implements node.Lifecycle, starting all internal goroutines needed by the
|
|
// light ethereum protocol implementation.
|
|
func (s *LightEthereum) Start() error {
|
|
log.Warn("Light client mode is an experimental feature")
|
|
|
|
if s.udpEnabled && s.p2pServer.DiscV5 == nil {
|
|
s.udpEnabled = false
|
|
log.Error("Discovery v5 is not initialized")
|
|
}
|
|
discovery, err := s.setupDiscovery()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
s.serverPool.AddSource(discovery)
|
|
s.serverPool.Start()
|
|
// Start bloom request workers.
|
|
s.wg.Add(bloomServiceThreads)
|
|
s.startBloomHandlers(params.BloomBitsBlocksClient)
|
|
s.handler.start()
|
|
|
|
return nil
|
|
}
|
|
|
|
// Stop implements node.Lifecycle, terminating all internal goroutines used by the
|
|
// Ethereum protocol.
|
|
func (s *LightEthereum) Stop() error {
|
|
close(s.closeCh)
|
|
s.serverPool.Stop()
|
|
s.peers.close()
|
|
s.reqDist.close()
|
|
s.odr.Stop()
|
|
s.relay.Stop()
|
|
s.bloomIndexer.Close()
|
|
s.chtIndexer.Close()
|
|
s.blockchain.Stop()
|
|
s.handler.stop()
|
|
s.txPool.Stop()
|
|
s.engine.Close()
|
|
s.pruner.close()
|
|
s.eventMux.Stop()
|
|
rawdb.PopUncleanShutdownMarker(s.chainDb)
|
|
s.chainDb.Close()
|
|
s.lesDb.Close()
|
|
s.wg.Wait()
|
|
log.Info("Light ethereum stopped")
|
|
return nil
|
|
}
|