コード例 #1
0
ファイル: handler.go プロジェクト: ssonneborn22/go-ethereum
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
// with the ethereum network.
func NewProtocolManager(protocolVersion, networkId int, mux *event.TypeMux, txpool txPool, pow pow.PoW, chainman *core.ChainManager) *ProtocolManager {
	// Create the protocol manager and initialize peer handlers
	manager := &ProtocolManager{
		eventMux:  mux,
		txpool:    txpool,
		chainman:  chainman,
		peers:     newPeerSet(),
		newPeerCh: make(chan *peer, 1),
		txsyncCh:  make(chan *txsync),
		quitSync:  make(chan struct{}),
	}
	manager.SubProtocol = p2p.Protocol{
		Name:    "eth",
		Version: uint(protocolVersion),
		Length:  ProtocolLength,
		Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
			peer := manager.newPeer(protocolVersion, networkId, p, rw)
			manager.newPeerCh <- peer
			return manager.handle(peer)
		},
	}
	// Construct the different synchronisation mechanisms
	manager.downloader = downloader.New(manager.eventMux, manager.chainman.HasBlock, manager.chainman.GetBlock, manager.chainman.InsertChain, manager.removePeer)

	validator := func(block *types.Block, parent *types.Block) error {
		return core.ValidateHeader(pow, block.Header(), parent.Header(), true)
	}
	heighter := func() uint64 {
		return manager.chainman.CurrentBlock().NumberU64()
	}
	manager.fetcher = fetcher.New(manager.chainman.GetBlock, validator, manager.BroadcastBlock, heighter, manager.chainman.InsertChain, manager.removePeer)

	return manager
}
コード例 #2
0
ファイル: handler.go プロジェクト: General-Beck/go-ethereum
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
// with the ethereum network.
func NewProtocolManager(fastSync bool, networkId int, mux *event.TypeMux, txpool txPool, pow pow.PoW, blockchain *core.BlockChain, chaindb ethdb.Database) (*ProtocolManager, error) {
	// Figure out whether to allow fast sync or not
	if fastSync && blockchain.CurrentBlock().NumberU64() > 0 {
		glog.V(logger.Info).Infof("blockchain not empty, fast sync disabled")
		fastSync = false
	}
	// Create the protocol manager with the base fields
	manager := &ProtocolManager{
		fastSync:   fastSync,
		eventMux:   mux,
		txpool:     txpool,
		blockchain: blockchain,
		chaindb:    chaindb,
		peers:      newPeerSet(),
		newPeerCh:  make(chan *peer, 1),
		txsyncCh:   make(chan *txsync),
		quitSync:   make(chan struct{}),
	}
	// Initiate a sub-protocol for every implemented version we can handle
	manager.SubProtocols = make([]p2p.Protocol, 0, len(ProtocolVersions))
	for i, version := range ProtocolVersions {
		// Skip protocol version if incompatible with the mode of operation
		if fastSync && version < eth63 {
			continue
		}
		// Compatible; initialise the sub-protocol
		version := version // Closure for the run
		manager.SubProtocols = append(manager.SubProtocols, p2p.Protocol{
			Name:    "eth",
			Version: version,
			Length:  ProtocolLengths[i],
			Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
				peer := manager.newPeer(int(version), networkId, p, rw)
				manager.newPeerCh <- peer
				return manager.handle(peer)
			},
		})
	}
	if len(manager.SubProtocols) == 0 {
		return nil, errIncompatibleConfig
	}
	// Construct the different synchronisation mechanisms
	manager.downloader = downloader.New(chaindb, manager.eventMux, blockchain.HasHeader, blockchain.HasBlock, blockchain.GetHeader, blockchain.GetBlock,
		blockchain.CurrentHeader, blockchain.CurrentBlock, blockchain.CurrentFastBlock, blockchain.FastSyncCommitHead, blockchain.GetTd,
		blockchain.InsertHeaderChain, blockchain.InsertChain, blockchain.InsertReceiptChain, blockchain.Rollback, manager.removePeer)

	validator := func(block *types.Block, parent *types.Block) error {
		return core.ValidateHeader(pow, block.Header(), parent.Header(), true, false)
	}
	heighter := func() uint64 {
		return blockchain.CurrentBlock().NumberU64()
	}
	manager.fetcher = fetcher.New(blockchain.GetBlock, validator, manager.BroadcastBlock, heighter, blockchain.InsertChain, manager.removePeer)

	return manager, nil
}
コード例 #3
0
ファイル: handler.go プロジェクト: nellyk/go-ethereum
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
// with the ethereum network.
func NewProtocolManager(networkId int, mux *event.TypeMux, txpool txPool, pow pow.PoW, chainman *core.ChainManager) *ProtocolManager {
	// Create the protocol manager with the base fields
	manager := &ProtocolManager{
		eventMux:  mux,
		txpool:    txpool,
		chainman:  chainman,
		peers:     newPeerSet(),
		newPeerCh: make(chan *peer, 1),
		txsyncCh:  make(chan *txsync),
		quitSync:  make(chan struct{}),
		netId:     networkId,
	}
	// Initiate a sub-protocol for every implemented version we can handle
	manager.SubProtocols = make([]p2p.Protocol, len(ProtocolVersions))
	for i := 0; i < len(manager.SubProtocols); i++ {
		version := ProtocolVersions[i]

		manager.SubProtocols[i] = p2p.Protocol{
			Name:    "eth",
			Version: version,
			Length:  ProtocolLengths[i],
			Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
				peer := manager.newPeer(int(version), networkId, p, rw)
				manager.newPeerCh <- peer
				return manager.handle(peer)
			},
		}
	}
	// Construct the different synchronisation mechanisms
	manager.downloader = downloader.New(manager.eventMux, manager.chainman.HasBlock, manager.chainman.GetBlock, manager.chainman.CurrentBlock, manager.chainman.InsertChain, manager.removePeer)

	validator := func(block *types.Block, parent *types.Block) error {
		return core.ValidateHeader(pow, block.Header(), parent, true, false)
	}
	heighter := func() uint64 {
		return manager.chainman.CurrentBlock().NumberU64()
	}
	manager.fetcher = fetcher.New(manager.chainman.GetBlock, validator, manager.BroadcastBlock, heighter, manager.chainman.InsertChain, manager.removePeer)

	return manager
}
コード例 #4
0
ファイル: handler.go プロジェクト: Codzart/go-ethereum
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
// with the ethereum network.
func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int, mux *event.TypeMux, txpool txPool, pow pow.PoW, blockchain *core.BlockChain, chaindb ethdb.Database) (*ProtocolManager, error) {
	// Create the protocol manager with the base fields
	manager := &ProtocolManager{
		networkId:   networkId,
		eventMux:    mux,
		txpool:      txpool,
		blockchain:  blockchain,
		chaindb:     chaindb,
		peers:       newPeerSet(),
		newPeerCh:   make(chan *peer),
		noMorePeers: make(chan struct{}),
		txsyncCh:    make(chan *txsync),
		quitSync:    make(chan struct{}),
	}
	// Figure out whether to allow fast sync or not
	if fastSync && blockchain.CurrentBlock().NumberU64() > 0 {
		glog.V(logger.Info).Infof("blockchain not empty, fast sync disabled")
		fastSync = false
	}
	if fastSync {
		manager.fastSync = uint32(1)
	}
	// Initiate a sub-protocol for every implemented version we can handle
	manager.SubProtocols = make([]p2p.Protocol, 0, len(ProtocolVersions))
	for i, version := range ProtocolVersions {
		// Skip protocol version if incompatible with the mode of operation
		if fastSync && version < eth63 {
			continue
		}
		// Compatible; initialise the sub-protocol
		version := version // Closure for the run
		manager.SubProtocols = append(manager.SubProtocols, p2p.Protocol{
			Name:    ProtocolName,
			Version: version,
			Length:  ProtocolLengths[i],
			Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
				peer := manager.newPeer(int(version), p, rw)
				select {
				case manager.newPeerCh <- peer:
					manager.wg.Add(1)
					defer manager.wg.Done()
					return manager.handle(peer)
				case <-manager.quitSync:
					return p2p.DiscQuitting
				}
			},
			NodeInfo: func() interface{} {
				return manager.NodeInfo()
			},
			PeerInfo: func(id discover.NodeID) interface{} {
				if p := manager.peers.Peer(fmt.Sprintf("%x", id[:8])); p != nil {
					return p.Info()
				}
				return nil
			},
		})
	}
	if len(manager.SubProtocols) == 0 {
		return nil, errIncompatibleConfig
	}
	// Construct the different synchronisation mechanisms
	manager.downloader = downloader.New(chaindb, manager.eventMux, blockchain.HasHeader, blockchain.HasBlockAndState, blockchain.GetHeader,
		blockchain.GetBlock, blockchain.CurrentHeader, blockchain.CurrentBlock, blockchain.CurrentFastBlock, blockchain.FastSyncCommitHead,
		blockchain.GetTd, blockchain.InsertHeaderChain, manager.insertChain, blockchain.InsertReceiptChain, blockchain.Rollback,
		manager.removePeer)

	validator := func(block *types.Block, parent *types.Block) error {
		return core.ValidateHeader(config, pow, block.Header(), parent.Header(), true, false)
	}
	heighter := func() uint64 {
		return blockchain.CurrentBlock().NumberU64()
	}
	inserter := func(blocks types.Blocks) (int, error) {
		atomic.StoreUint32(&manager.synced, 1) // Mark initial sync done on any fetcher import
		return manager.insertChain(blocks)
	}
	manager.fetcher = fetcher.New(blockchain.GetBlock, validator, manager.BroadcastBlock, heighter, inserter, manager.removePeer)

	if blockchain.Genesis().Hash().Hex() == defaultGenesisHash && networkId == 1 {
		glog.V(logger.Debug).Infoln("Bad Block Reporting is enabled")
		manager.badBlockReportingEnabled = true
	}

	return manager, nil
}
コード例 #5
0
ファイル: backend.go プロジェクト: hiroshi1tanaka/gethkey
func New(config *Config) (*Ethereum, error) {
	// Bootstrap database
	logger.New(config.DataDir, config.LogFile, config.Verbosity)
	if len(config.LogJSON) > 0 {
		logger.NewJSONsystem(config.DataDir, config.LogJSON)
	}

	// Let the database take 3/4 of the max open files (TODO figure out a way to get the actual limit of the open files)
	const dbCount = 3
	ethdb.OpenFileLimit = 256 / (dbCount + 1)

	newdb := config.NewDB
	if newdb == nil {
		newdb = func(path string) (common.Database, error) { return ethdb.NewLDBDatabase(path) }
	}
	blockDb, err := newdb(filepath.Join(config.DataDir, "blockchain"))
	if err != nil {
		return nil, fmt.Errorf("blockchain db err: %v", err)
	}
	stateDb, err := newdb(filepath.Join(config.DataDir, "state"))
	if err != nil {
		return nil, fmt.Errorf("state db err: %v", err)
	}
	extraDb, err := newdb(filepath.Join(config.DataDir, "extra"))
	if err != nil {
		return nil, fmt.Errorf("extra db err: %v", err)
	}
	nodeDb := filepath.Join(config.DataDir, "nodes")

	// Perform database sanity checks
	d, _ := blockDb.Get([]byte("ProtocolVersion"))
	protov := int(common.NewValue(d).Uint())
	if protov != config.ProtocolVersion && protov != 0 {
		path := filepath.Join(config.DataDir, "blockchain")
		return nil, fmt.Errorf("Database version mismatch. Protocol(%d / %d). `rm -rf %s`", protov, config.ProtocolVersion, path)
	}
	saveProtocolVersion(blockDb, config.ProtocolVersion)
	glog.V(logger.Info).Infof("Protocol Version: %v, Network Id: %v", config.ProtocolVersion, config.NetworkId)

	if !config.SkipBcVersionCheck {
		b, _ := blockDb.Get([]byte("BlockchainVersion"))
		bcVersion := int(common.NewValue(b).Uint())
		if bcVersion != config.BlockChainVersion && bcVersion != 0 {
			return nil, fmt.Errorf("Blockchain DB version mismatch (%d / %d). Run geth upgradedb.\n", bcVersion, config.BlockChainVersion)
		}
		saveBlockchainVersion(blockDb, config.BlockChainVersion)
	}
	glog.V(logger.Info).Infof("Blockchain DB Version: %d", config.BlockChainVersion)

	eth := &Ethereum{
		shutdownChan:    make(chan bool),
		databasesClosed: make(chan bool),
		blockDb:         blockDb,
		stateDb:         stateDb,
		extraDb:         extraDb,
		eventMux:        &event.TypeMux{},
		accountManager:  config.AccountManager,
		DataDir:         config.DataDir,
		etherbase:       common.HexToAddress(config.Etherbase),
		clientVersion:   config.Name, // TODO should separate from Name
		ethVersionId:    config.ProtocolVersion,
		netVersionId:    config.NetworkId,
		NatSpec:         config.NatSpec,
	}

	eth.chainManager = core.NewChainManager(blockDb, stateDb, eth.EventMux())
	eth.downloader = downloader.New(eth.chainManager.HasBlock, eth.chainManager.GetBlock)
	eth.pow = ethash.New()
	eth.txPool = core.NewTxPool(eth.EventMux(), eth.chainManager.State, eth.chainManager.GasLimit)
	eth.blockProcessor = core.NewBlockProcessor(stateDb, extraDb, eth.pow, eth.txPool, eth.chainManager, eth.EventMux())
	eth.chainManager.SetProcessor(eth.blockProcessor)
	eth.miner = miner.New(eth, eth.pow)
	eth.miner.SetGasPrice(config.GasPrice)

	eth.protocolManager = NewProtocolManager(config.ProtocolVersion, config.NetworkId, eth.eventMux, eth.txPool, eth.chainManager, eth.downloader)
	if config.Shh {
		eth.whisper = whisper.New()
		eth.shhVersionId = int(eth.whisper.Version())
	}

	netprv, err := config.nodeKey()
	if err != nil {
		return nil, err
	}
	protocols := []p2p.Protocol{eth.protocolManager.SubProtocol}
	if config.Shh {
		protocols = append(protocols, eth.whisper.Protocol())
	}
	eth.net = &p2p.Server{
		PrivateKey:      netprv,
		Name:            config.Name,
		MaxPeers:        config.MaxPeers,
		MaxPendingPeers: config.MaxPendingPeers,
		Protocols:       protocols,
		NAT:             config.NAT,
		NoDial:          !config.Dial,
		BootstrapNodes:  config.parseBootNodes(),
		StaticNodes:     config.parseNodes(staticNodes),
		TrustedNodes:    config.parseNodes(trustedNodes),
		NodeDatabase:    nodeDb,
	}
	if len(config.Port) > 0 {
		eth.net.ListenAddr = ":" + config.Port
	}

	vm.Debug = config.VmDebug

	return eth, nil
}