12 log "github.com/sirupsen/logrus"
13 "github.com/tendermint/go-crypto"
14 cmn "github.com/tendermint/tmlibs/common"
16 "github.com/bytom/account"
17 cfg "github.com/bytom/config"
18 "github.com/bytom/consensus"
19 "github.com/bytom/p2p"
20 "github.com/bytom/p2p/discover"
21 "github.com/bytom/protocol/bc"
22 "github.com/bytom/protocol/bc/types"
23 "github.com/bytom/version"
24 "github.com/bytom/wallet"
32 // Chain is the interface for Bytom core
33 type Chain interface {
34 BestBlockHeader() *types.BlockHeader
35 BestBlockHeight() uint64
36 CalcNextSeed(*bc.Hash) (*bc.Hash, error)
37 GetBlockByHash(*bc.Hash) (*types.Block, error)
38 GetBlockByHeight(uint64) (*types.Block, error)
39 GetHeaderByHash(*bc.Hash) (*types.BlockHeader, error)
40 GetHeaderByHeight(uint64) (*types.BlockHeader, error)
41 InMainChain(bc.Hash) bool
42 ProcessBlock(*types.Block, *bc.TransactionStatus) (bool, error)
45 //SyncManager Sync Manager is responsible for the business layer information synchronization
46 type SyncManager struct {
50 privKey crypto.PrivKeyEd25519 // local node's p2p key
52 blockKeeper *blockKeeper
55 newTxCh chan *types.Tx
56 txNotifyCh chan *types.Tx
57 newBlockCh chan *bc.Hash
58 newAddrCh chan *account.CtrlProgram
59 spvAddresses []*account.CtrlProgram
60 addrMutex sync.RWMutex
61 txSyncCh chan *txSyncMsg
62 quitSync chan struct{}
66 //NewSyncManager create a sync manager
67 func NewSyncManager(config *cfg.Config, chain Chain, newBlockCh chan *bc.Hash, wallet *wallet.Wallet) (*SyncManager, error) {
68 genesisHeader, err := chain.GetHeaderByHeight(0)
73 sw := p2p.NewSwitch(config)
74 peers := newPeerSet(sw)
75 manager := &SyncManager{
77 genesisHash: genesisHeader.Hash(),
79 privKey: crypto.GenPrivKeyEd25519(),
80 blockKeeper: newBlockKeeper(chain, peers),
82 newTxCh: make(chan *types.Tx, maxTxChanSize),
83 txNotifyCh: wallet.GetTxCh(),
84 newBlockCh: newBlockCh,
85 txSyncCh: make(chan *txSyncMsg),
86 quitSync: make(chan struct{}),
88 newAddrCh: wallet.AccountMgr.NewAddrCh,
90 manager.spvAddresses, _ = wallet.AccountMgr.ListControlProgram()
91 protocolReactor := NewProtocolReactor(manager, manager.peers)
92 manager.sw.AddReactor("PROTOCOL", protocolReactor)
94 // Create & add listener
95 var listenerStatus bool
97 if !config.VaultMode {
98 p, address := protocolAndAddress(manager.config.P2P.ListenAddress)
99 l, listenerStatus = p2p.NewDefaultListener(p, address, manager.config.P2P.SkipUPNP)
100 //manager.sw.AddListener(l)
102 discv, err := initDiscover(config, &manager.privKey, l.ExternalAddress().Port)
106 manager.sw.SetDiscv(discv)
108 manager.sw.SetNodeInfo(manager.makeNodeInfo(listenerStatus))
109 manager.sw.SetNodePrivKey(manager.privKey)
113 //BestPeer return the highest p2p peerInfo
114 func (sm *SyncManager) BestPeer() *PeerInfo {
115 bestPeer := sm.peers.bestPeer(consensus.SFFullNode)
117 return bestPeer.getPeerInfo()
122 // GetNewTxCh return a unconfirmed transaction feed channel
123 func (sm *SyncManager) GetNewTxCh() chan *types.Tx {
127 //GetPeerInfos return peer info of all peers
128 func (sm *SyncManager) GetPeerInfos() []*PeerInfo {
129 return sm.peers.getPeerInfos()
132 //IsCaughtUp check wheather the peer finish the sync
133 func (sm *SyncManager) IsCaughtUp() bool {
134 peer := sm.peers.bestPeer(consensus.SFFullNode)
135 return peer == nil || peer.Height() <= sm.chain.BestBlockHeight()
138 //NodeInfo get P2P peer node info
139 func (sm *SyncManager) NodeInfo() *p2p.NodeInfo {
140 return sm.sw.NodeInfo()
143 //StopPeer try to stop peer by given ID
144 func (sm *SyncManager) StopPeer(peerID string) error {
145 if peer := sm.peers.getPeer(peerID); peer == nil {
146 return errors.New("peerId not exist")
148 sm.peers.removePeer(peerID)
152 //Switch get sync manager switch
153 func (sm *SyncManager) Switch() *p2p.Switch {
157 func (sm *SyncManager) handleBlockMsg(peer *peer, msg *BlockMessage) {
158 sm.blockKeeper.processBlock(peer.ID(), msg.GetBlock())
161 func (sm *SyncManager) handleMerkelBlockMsg(peer *peer, msg *MerkleBlockMessage) {
162 sm.blockKeeper.processMerkleBlock(peer.ID(), msg.GetMerkleBlock())
165 func (sm *SyncManager) handleBlocksMsg(peer *peer, msg *BlocksMessage) {
166 blocks, err := msg.GetBlocks()
168 log.WithField("err", err).Debug("fail on handleBlocksMsg GetBlocks")
172 sm.blockKeeper.processBlocks(peer.ID(), blocks)
175 func (sm *SyncManager) handleGetBlockMsg(peer *peer, msg *GetBlockMessage) {
176 var block *types.Block
179 block, err = sm.chain.GetBlockByHeight(msg.Height)
181 block, err = sm.chain.GetBlockByHash(msg.GetHash())
184 log.WithField("err", err).Warning("fail on handleGetBlockMsg get block from chain")
188 ok, err := peer.sendBlock(block)
190 sm.peers.removePeer(peer.ID())
193 log.WithField("err", err).Error("fail on handleGetBlockMsg sentBlock")
197 func (sm *SyncManager) handleGetBlocksMsg(peer *peer, msg *GetBlocksMessage) {
198 blocks, err := sm.blockKeeper.locateBlocks(msg.GetBlockLocator(), msg.GetStopHash())
199 if err != nil || len(blocks) == 0 {
204 sendBlocks := []*types.Block{}
205 for _, block := range blocks {
206 rawData, err := block.MarshalText()
208 log.WithField("err", err).Error("fail on handleGetBlocksMsg marshal block")
212 if totalSize+len(rawData) > maxBlockchainResponseSize/2 {
215 totalSize += len(rawData)
216 sendBlocks = append(sendBlocks, block)
219 ok, err := peer.sendBlocks(sendBlocks)
221 sm.peers.removePeer(peer.ID())
224 log.WithField("err", err).Error("fail on handleGetBlocksMsg sentBlock")
228 func (sm *SyncManager) handleGetHeadersMsg(peer *peer, msg *GetHeadersMessage) {
229 headers, err := sm.blockKeeper.locateHeaders(msg.GetBlockLocator(), msg.GetStopHash())
230 if err != nil || len(headers) == 0 {
231 log.WithField("err", err).Debug("fail on handleGetHeadersMsg locateHeaders")
235 ok, err := peer.sendHeaders(headers)
237 sm.peers.removePeer(peer.ID())
240 log.WithField("err", err).Error("fail on handleGetHeadersMsg sentBlock")
244 func (sm *SyncManager) handleHeadersMsg(peer *peer, msg *HeadersMessage) {
245 headers, err := msg.GetHeaders()
247 log.WithField("err", err).Debug("fail on handleHeadersMsg GetHeaders")
251 sm.blockKeeper.processHeaders(peer.ID(), headers)
254 func (sm *SyncManager) handleStatusRequestMsg(peer BasePeer) {
255 bestHeader := sm.chain.BestBlockHeader()
256 genesisBlock, err := sm.chain.GetBlockByHeight(0)
258 log.WithField("err", err).Error("fail on handleStatusRequestMsg get genesis")
261 genesisHash := genesisBlock.Hash()
262 msg := NewStatusResponseMessage(bestHeader, &genesisHash)
263 if ok := peer.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg}); !ok {
264 sm.peers.removePeer(peer.ID())
268 func (sm *SyncManager) handleStatusResponseMsg(basePeer BasePeer, msg *StatusResponseMessage) {
269 if peer := sm.peers.getPeer(basePeer.ID()); peer != nil {
270 peer.setStatus(msg.Height, msg.GetHash())
274 if genesisHash := msg.GetGenesisHash(); sm.genesisHash != *genesisHash {
275 log.WithFields(log.Fields{
276 "remote genesis": genesisHash.String(),
277 "local genesis": sm.genesisHash.String(),
278 }).Warn("fail hand shake due to differnt genesis")
281 if basePeer.ServiceFlag().IsEnable(consensus.SFFullNode|consensus.SFSpvProof) == false {
282 log.WithFields(log.Fields{
283 "peer ServiceFlag": basePeer.ServiceFlag(),
284 }).Warn("fail hand shake due to remote peer is not full node support spv proof")
287 sm.peers.addPeer(basePeer, msg.Height, msg.GetHash())
290 func (sm *SyncManager) handleTransactionMsg(peer *peer, msg *TransactionMessage) {
291 tx, err := msg.GetTransaction()
293 sm.peers.addBanScore(peer.ID(), 0, 10, "fail on get tx from message")
299 func (sm *SyncManager) processMsg(basePeer BasePeer, msgType byte, msg BlockchainMessage) {
300 peer := sm.peers.getPeer(basePeer.ID())
301 if peer == nil && msgType != StatusResponseByte && msgType != StatusRequestByte {
305 switch msg := msg.(type) {
306 case *StatusRequestMessage:
307 sm.handleStatusRequestMsg(basePeer)
309 case *StatusResponseMessage:
310 sm.handleStatusResponseMsg(basePeer, msg)
312 case *TransactionMessage:
313 sm.handleTransactionMsg(peer, msg)
315 case *HeadersMessage:
316 sm.handleHeadersMsg(peer, msg)
318 case *MerkleBlockMessage:
319 sm.handleMerkelBlockMsg(peer, msg)
322 log.Errorf("unknown message type %v", reflect.TypeOf(msg))
327 func protocolAndAddress(listenAddr string) (string, string) {
328 p, address := "tcp", listenAddr
329 parts := strings.SplitN(address, "://", 2)
331 p, address = parts[0], parts[1]
336 func (sm *SyncManager) makeNodeInfo(listenerStatus bool) *p2p.NodeInfo {
337 nodeInfo := &p2p.NodeInfo{
338 PubKey: sm.privKey.PubKey().Unwrap().(crypto.PubKeyEd25519),
339 Moniker: sm.config.Moniker,
340 Network: sm.config.ChainID,
341 Version: version.Version,
342 Other: []string{strconv.FormatUint(uint64(consensus.DefaultServices), 10)},
345 if !sm.sw.IsListening() {
349 p2pListener := sm.sw.Listeners()[0]
351 // We assume that the rpcListener has the same ExternalAddress.
352 // This is probably true because both P2P and RPC listeners use UPnP,
353 // except of course if the rpc is only bound to localhost
355 nodeInfo.ListenAddr = cmn.Fmt("%v:%v", p2pListener.ExternalAddress().IP.String(), p2pListener.ExternalAddress().Port)
357 nodeInfo.ListenAddr = cmn.Fmt("%v:%v", p2pListener.InternalAddress().IP.String(), p2pListener.InternalAddress().Port)
362 //Start start sync manager service
363 func (sm *SyncManager) Start() {
364 if _, err := sm.sw.Start(); err != nil {
365 cmn.Exit(cmn.Fmt("fail on start SyncManager: %v", err))
367 go sm.spvAddressMgr()
368 // broadcast transactions
369 go sm.txBroadcastLoop()
370 go sm.minedBroadcastLoop()
374 //Stop stop sync manager
375 func (sm *SyncManager) Stop() {
380 func initDiscover(config *cfg.Config, priv *crypto.PrivKeyEd25519, port uint16) (*discover.Network, error) {
381 addr, err := net.ResolveUDPAddr("udp", net.JoinHostPort("0.0.0.0", strconv.FormatUint(uint64(port), 10)))
386 conn, err := net.ListenUDP("udp", addr)
391 realaddr := conn.LocalAddr().(*net.UDPAddr)
392 ntab, err := discover.ListenUDP(priv, conn, realaddr, path.Join(config.DBDir(), "discover.db"), nil)
397 // add the seeds node to the discover table
398 if config.P2P.Seeds == "" {
401 nodes := []*discover.Node{}
402 for _, seed := range strings.Split(config.P2P.Seeds, ",") {
403 url := "enode://" + hex.EncodeToString(crypto.Sha256([]byte(seed))) + "@" + seed
404 nodes = append(nodes, discover.MustParseNode(url))
406 if err = ntab.SetFallbackNodes(nodes); err != nil {
412 func (sm *SyncManager) minedBroadcastLoop() {
415 case blockHash := <-sm.newBlockCh:
416 block, err := sm.chain.GetBlockByHash(blockHash)
418 log.Errorf("Failed on mined broadcast loop get block %v", err)
421 if err := sm.peers.broadcastMinedBlock(block); err != nil {
422 log.Errorf("Broadcast mine block error. %v", err)