Exemplo n.º 1
0
// Load the most recent state from "state" db,
// or create a new one (and save) from genesis.
func getState(config cfg.Config, stateDB dbm.DB) *sm.State {
	state := sm.LoadState(stateDB)
	if state == nil {
		state = sm.MakeGenesisStateFromFile(stateDB, config.GetString("genesis_file"))
		state.Save()
	}
	return state
}
Exemplo n.º 2
0
// Load the most recent state from "state" db,
// or create a new one (and save) from genesis.
func getState() *sm.State {
	stateDB := dbm.GetDB("state")
	state := sm.LoadState(stateDB)
	if state == nil {
		state = sm.MakeGenesisStateFromFile(stateDB, config.GetString("genesis_file"))
		state.Save()
	}
	return state
}
Exemplo n.º 3
0
func gen_tx() {

	// Get State, which may be nil.
	stateDB := dbm.GetDB("state")
	state := sm.LoadState(stateDB)

	// Get source pubkey
	srcPubKeyBytes := getByteSliceFromHex("Enter source pubkey: ")
	r, n, err := bytes.NewReader(srcPubKeyBytes), new(int64), new(error)
	srcPubKey := binary.ReadBinary(struct{ account.PubKey }{}, r, n, err).(struct{ account.PubKey }).PubKey
	if *err != nil {
		Exit(Fmt("Invalid PubKey. Error: %v", err))
	}

	// Get the state of the account.
	var srcAccount *account.Account
	var srcAccountAddress = srcPubKey.Address()
	var srcAccountBalanceStr = "unknown"
	var srcAccountSequenceStr = "unknown"
	srcAddress := srcPubKey.Address()
	if state != nil {
		srcAccount = state.GetAccount(srcAddress)
		srcAccountBalanceStr = Fmt("%v", srcAccount.Balance)
		srcAccountSequenceStr = Fmt("%v", srcAccount.Sequence+1)
	}

	// Get the amount to send from src account
	srcSendAmount := getUint64(Fmt("Enter amount to send from %X (total: %v): ", srcAccountAddress, srcAccountBalanceStr))

	// Get the next sequence of src account
	srcSendSequence := uint(getUint64(Fmt("Enter next sequence for %X (guess: %v): ", srcAccountAddress, srcAccountSequenceStr)))

	// Get dest address
	dstAddress := getByteSliceFromHex("Enter destination address: ")

	// Get the amount to send to dst account
	dstSendAmount := getUint64(Fmt("Enter amount to send to %X: ", dstAddress))

	// Construct SendTx
	tx := &types.SendTx{
		Inputs: []*types.TxInput{
			&types.TxInput{
				Address:   srcAddress,
				Amount:    srcSendAmount,
				Sequence:  srcSendSequence,
				Signature: account.SignatureEd25519{},
				PubKey:    srcPubKey,
			},
		},
		Outputs: []*types.TxOutput{
			&types.TxOutput{
				Address: dstAddress,
				Amount:  dstSendAmount,
			},
		},
	}

	// Show the intermediate form.
	fmt.Printf("Generated tx: %X\n", binary.BinaryBytes(tx))

	// Get source privkey (for signing)
	srcPrivKeyBytes := getByteSliceFromHex("Enter source privkey (for signing): ")
	r, n, err = bytes.NewReader(srcPrivKeyBytes), new(int64), new(error)
	srcPrivKey := binary.ReadBinary(struct{ account.PrivKey }{}, r, n, err).(struct{ account.PrivKey }).PrivKey
	if *err != nil {
		Exit(Fmt("Invalid PrivKey. Error: %v", err))
	}

	// Sign
	tx.Inputs[0].Signature = srcPrivKey.Sign(account.SignBytes(tx))
	fmt.Printf("Signed tx: %X\n", binary.BinaryBytes(tx))
}
Exemplo n.º 4
0
// Handle messages from the poolReactor telling the reactor what to do.
func (bcR *BlockchainReactor) poolRoutine() {

	trySyncTicker := time.NewTicker(trySyncIntervalMS * time.Millisecond)
	statusUpdateTicker := time.NewTicker(statusUpdateIntervalSeconds * time.Second)
	switchToConsensusTicker := time.NewTicker(switchToConsensusIntervalSeconds * time.Second)

FOR_LOOP:
	for {
		select {
		case request := <-bcR.requestsCh: // chan BlockRequest
			peer := bcR.sw.Peers().Get(request.PeerId)
			if peer == nil {
				// We can't fulfill the request.
				continue FOR_LOOP
			}
			msg := &bcBlockRequestMessage{request.Height}
			queued := peer.TrySend(BlockchainChannel, msg)
			if !queued {
				// We couldn't queue the request.
				time.Sleep(defaultSleepIntervalMS * time.Millisecond)
				continue FOR_LOOP
			}
		case peerId := <-bcR.timeoutsCh: // chan string
			// Peer timed out.
			peer := bcR.sw.Peers().Get(peerId)
			if peer != nil {
				bcR.sw.StopPeerForError(peer, errors.New("BlockchainReactor Timeout"))
			}
		case _ = <-statusUpdateTicker.C:
			// ask for status updates
			go bcR.BroadcastStatusRequest()
		case _ = <-switchToConsensusTicker.C:
			// not thread safe access for peerless and numPending but should be fine
			log.Debug("Consensus ticker", "peerless", bcR.pool.peerless, "pending", bcR.pool.numPending, "total", bcR.pool.numTotal)
			// NOTE: this condition is very strict right now. may need to weaken
			// if the max amount of requests are pending and peerless
			// and we have some peers (say > 5), then we're caught up
			maxPending := bcR.pool.numPending == maxPendingRequests
			maxPeerless := bcR.pool.peerless == bcR.pool.numPending
			o, i, _ := bcR.sw.NumPeers()
			enoughPeers := o+i >= 5
			if maxPending && maxPeerless && enoughPeers {
				log.Warn("Time to switch to consensus reactor!", "height", bcR.pool.height)
				bcR.pool.Stop()
				stateDB := dbm.GetDB("state")
				state := sm.LoadState(stateDB)

				bcR.sw.Reactor("CONSENSUS").(consensusReactor).ResetToState(state)
				bcR.sw.Reactor("CONSENSUS").(consensusReactor).SetSyncing(false)

				break FOR_LOOP
			}
		case _ = <-trySyncTicker.C: // chan time
			//var lastValidatedBlock *types.Block
		SYNC_LOOP:
			for i := 0; i < 10; i++ {
				// See if there are any blocks to sync.
				first, second := bcR.pool.PeekTwoBlocks()
				//log.Debug("TrySync peeked", "first", first, "second", second)
				if first == nil || second == nil {
					// We need both to sync the first block.
					break SYNC_LOOP
				}
				firstParts := first.MakePartSet()
				firstPartsHeader := firstParts.Header()
				// Finally, verify the first block using the second's validation.
				err := bcR.state.BondedValidators.VerifyValidation(
					first.Hash(), firstPartsHeader, first.Height, second.Validation)
				if err != nil {
					log.Debug("error in validation", "error", err)
					bcR.pool.RedoRequest(first.Height)
					break SYNC_LOOP
				} else {
					bcR.pool.PopRequest()
					err := sm.ExecBlock(bcR.state, first, firstPartsHeader)
					if err != nil {
						// TODO This is bad, are we zombie?
						panic(Fmt("Failed to process committed block: %v", err))
					}
					bcR.store.SaveBlock(first, firstParts, second.Validation)
					bcR.state.Save()
					//lastValidatedBlock = first
				}
			}
			/*
				// We're done syncing for now (will do again shortly)
				// See if we want to stop syncing and turn on the
				// consensus reactor.
				// TODO: use other heuristics too besides blocktime.
				// It's not a security concern, as it only needs to happen
				// upon node sync, and there's also a second (slower)
				// this peer failed us
				// method of syncing in the consensus reactor.

				if lastValidatedBlock != nil && time.Now().Sub(lastValidatedBlock.Time) < stopSyncingDurationMinutes*time.Minute {
					go func() {
						log.Info("Stopping blockpool syncing, turning on consensus...")
						trySyncTicker.Stop() // Just stop the block requests.  Still serve blocks to others.
						conR := bcR.sw.Reactor("CONSENSUS")
						conR.(stateResetter).ResetToState(bcR.state)
						conR.Start(bcR.sw)
						for _, peer := range bcR.sw.Peers().List() {
							conR.AddPeer(peer)
						}
					}()
					break FOR_LOOP
				}
			*/
			continue FOR_LOOP
		case <-bcR.quit:
			break FOR_LOOP
		}
	}
}
Exemplo n.º 5
0
func NewNode() *Node {
	// Get BlockStore
	blockStoreDB := dbm.GetDB("blockstore")
	blockStore := bc.NewBlockStore(blockStoreDB)

	// Get State
	stateDB := dbm.GetDB("state")
	state := sm.LoadState(stateDB)
	if state == nil {
		state = sm.MakeGenesisStateFromFile(stateDB, config.GetString("genesis_file"))
		state.Save()
	}

	// Get PrivValidator
	var privValidator *sm.PrivValidator
	privValidatorFile := config.GetString("priv_validator_file")
	if _, err := os.Stat(privValidatorFile); err == nil {
		privValidator = sm.LoadPrivValidator(privValidatorFile)
		log.Info("Loaded PrivValidator",
			"file", privValidatorFile, "privValidator", privValidator)
	} else {
		privValidator = sm.GenPrivValidator()
		privValidator.SetFile(privValidatorFile)
		privValidator.Save()
		log.Info("Generated PrivValidator", "file", privValidatorFile)
	}

	eventSwitch := new(events.EventSwitch)
	eventSwitch.Start()

	// Get PEXReactor
	book := p2p.NewAddrBook(config.GetString("addrbook_file"))
	pexReactor := p2p.NewPEXReactor(book)

	// Get BlockchainReactor
	bcReactor := bc.NewBlockchainReactor(state, blockStore, config.GetBool("fast_sync"))

	// Get MempoolReactor
	mempool := mempl.NewMempool(state.Copy())
	mempoolReactor := mempl.NewMempoolReactor(mempool)

	// Get ConsensusReactor
	consensusState := consensus.NewConsensusState(state, blockStore, mempoolReactor)
	consensusReactor := consensus.NewConsensusReactor(consensusState, blockStore)
	if privValidator != nil {
		consensusReactor.SetPrivValidator(privValidator)
	}

	// so the consensus reactor won't do anything until we're synced
	if config.GetBool("fast_sync") {
		consensusReactor.SetSyncing(true)
	}

	sw := p2p.NewSwitch()
	sw.AddReactor("PEX", pexReactor)
	sw.AddReactor("MEMPOOL", mempoolReactor)
	sw.AddReactor("BLOCKCHAIN", bcReactor)
	sw.AddReactor("CONSENSUS", consensusReactor)

	// add the event switch to all services
	// they should all satisfy events.Eventable
	SetFireable(eventSwitch, pexReactor, bcReactor, mempoolReactor, consensusReactor)

	return &Node{
		sw:               sw,
		evsw:             eventSwitch,
		book:             book,
		blockStore:       blockStore,
		pexReactor:       pexReactor,
		bcReactor:        bcReactor,
		mempoolReactor:   mempoolReactor,
		consensusState:   consensusState,
		consensusReactor: consensusReactor,
		privValidator:    privValidator,
	}
}
Exemplo n.º 6
0
func NewNode() *Node {
	// Get BlockStore
	blockStoreDB := dbm.GetDB("blockstore")
	blockStore := bc.NewBlockStore(blockStoreDB)

	// Get State
	stateDB := dbm.GetDB("state")
	state := sm.LoadState(stateDB)
	var genDoc *stypes.GenesisDoc
	if state == nil {
		genDoc, state = sm.MakeGenesisStateFromFile(stateDB, config.GetString("genesis_file"))
		state.Save()
		// write the gendoc to db
		buf, n, err := new(bytes.Buffer), new(int64), new(error)
		wire.WriteJSON(genDoc, buf, n, err)
		stateDB.Set(stypes.GenDocKey, buf.Bytes())
		if *err != nil {
			Exit(Fmt("Unable to write gendoc to db: %v", err))
		}
	} else {
		genDocBytes := stateDB.Get(stypes.GenDocKey)
		err := new(error)
		wire.ReadJSONPtr(&genDoc, genDocBytes, err)
		if *err != nil {
			Exit(Fmt("Unable to read gendoc from db: %v", err))
		}
	}
	// add the chainid to the global config
	config.Set("chain_id", state.ChainID)

	// Get PrivValidator
	privValidatorFile := config.GetString("priv_validator_file")
	privValidator := types.LoadOrGenPrivValidator(privValidatorFile)

	// Generate node PrivKey
	privKey := acm.GenPrivKeyEd25519()

	// Make event switch
	eventSwitch := events.NewEventSwitch()
	_, err := eventSwitch.Start()
	if err != nil {
		Exit(Fmt("Failed to start switch: %v", err))
	}

	// Make PEXReactor
	book := p2p.NewAddrBook(config.GetString("addrbook_file"))
	pexReactor := p2p.NewPEXReactor(book)

	// Make BlockchainReactor
	bcReactor := bc.NewBlockchainReactor(state.Copy(), blockStore, config.GetBool("fast_sync"))

	// Make MempoolReactor
	mempool := mempl.NewMempool(state.Copy())
	mempoolReactor := mempl.NewMempoolReactor(mempool)

	// Make ConsensusReactor
	consensusState := consensus.NewConsensusState(state.Copy(), blockStore, mempoolReactor)
	consensusReactor := consensus.NewConsensusReactor(consensusState, blockStore, config.GetBool("fast_sync"))
	if privValidator != nil {
		consensusReactor.SetPrivValidator(privValidator)
	}

	// Make p2p network switch
	sw := p2p.NewSwitch()
	sw.AddReactor("PEX", pexReactor)
	sw.AddReactor("MEMPOOL", mempoolReactor)
	sw.AddReactor("BLOCKCHAIN", bcReactor)
	sw.AddReactor("CONSENSUS", consensusReactor)

	// add the event switch to all services
	// they should all satisfy events.Eventable
	SetFireable(eventSwitch, pexReactor, bcReactor, mempoolReactor, consensusReactor)

	// run the profile server
	profileHost := config.GetString("prof_laddr")
	if profileHost != "" {
		go func() {
			log.Warn("Profile server", "error", http.ListenAndServe(profileHost, nil))
		}()
	}

	// set vm log level
	vm.SetDebug(config.GetBool("vm_log"))

	return &Node{
		sw:               sw,
		evsw:             eventSwitch,
		book:             book,
		blockStore:       blockStore,
		pexReactor:       pexReactor,
		bcReactor:        bcReactor,
		mempoolReactor:   mempoolReactor,
		consensusState:   consensusState,
		consensusReactor: consensusReactor,
		privValidator:    privValidator,
		genDoc:           genDoc,
		privKey:          privKey,
	}
}