9 log "github.com/sirupsen/logrus"
10 "github.com/tendermint/tmlibs/flowrate"
11 "gopkg.in/fatih/set.v0"
13 "github.com/bytom/consensus"
14 "github.com/bytom/errors"
15 "github.com/bytom/protocol/bc"
16 "github.com/bytom/protocol/bc/types"
20 maxKnownTxs = 32768 // Maximum transactions hashes to keep in the known list (prevent DOS)
21 maxKnownBlocks = 1024 // Maximum block hashes to keep in the known list (prevent DOS)
24 //BasePeer is the interface for connection level peer
25 type BasePeer interface {
28 ServiceFlag() consensus.ServiceFlag
29 TrafficStatus() (*flowrate.Status, *flowrate.Status)
30 TrySend(byte, interface{}) bool
34 //BasePeerSet is the intergace for connection level peer manager
35 type BasePeerSet interface {
36 StopPeerGracefully(string)
37 IsBanned(peerID string, level byte, reason string) bool
40 // PeerInfo indicate peer status snap
41 type PeerInfo struct {
42 ID string `json:"peer_id"`
43 RemoteAddr string `json:"remote_addr"`
44 Height uint64 `json:"height"`
45 Ping string `json:"ping"`
46 Duration string `json:"duration"`
47 TotalSent int64 `json:"total_sent"`
48 TotalReceived int64 `json:"total_received"`
49 AverageSentRate int64 `json:"average_sent_rate"`
50 AverageReceivedRate int64 `json:"average_received_rate"`
51 CurrentSentRate int64 `json:"current_sent_rate"`
52 CurrentReceivedRate int64 `json:"current_received_rate"`
58 services consensus.ServiceFlag
61 knownTxs *set.Set // Set of transaction hashes known to be known by this peer
62 knownBlocks *set.Set // Set of block hashes known to be known by this peer
63 filterAdds *set.Set // Set of addresses that the spv node cares about.
66 func newPeer(height uint64, hash *bc.Hash, basePeer BasePeer) *peer {
69 services: basePeer.ServiceFlag(),
73 knownBlocks: set.New(),
74 filterAdds: set.New(),
78 func (p *peer) Height() uint64 {
84 func (p *peer) addFilterAddress(address []byte) {
88 if p.filterAdds.Size() >= maxFilterAddressCount {
89 log.WithField("module", logModule).Warn("the count of filter addresses is greater than limit")
92 if len(address) > maxFilterAddressSize {
93 log.WithField("module", logModule).Warn("the size of filter address is greater than limit")
97 p.filterAdds.Add(hex.EncodeToString(address))
100 func (p *peer) addFilterAddresses(addresses [][]byte) {
101 if !p.filterAdds.IsEmpty() {
104 for _, address := range addresses {
105 p.addFilterAddress(address)
109 func (p *peer) getBlockByHeight(height uint64) bool {
110 msg := struct{ BlockchainMessage }{&GetBlockMessage{Height: height}}
111 return p.TrySend(BlockchainChannel, msg)
114 func (p *peer) getBlocks(locator []*bc.Hash, stopHash *bc.Hash) bool {
115 msg := struct{ BlockchainMessage }{NewGetBlocksMessage(locator, stopHash)}
116 return p.TrySend(BlockchainChannel, msg)
119 func (p *peer) getHeaders(locator []*bc.Hash, stopHash *bc.Hash) bool {
120 msg := struct{ BlockchainMessage }{NewGetHeadersMessage(locator, stopHash)}
121 return p.TrySend(BlockchainChannel, msg)
124 func (p *peer) getPeerInfo() *PeerInfo {
126 defer p.mtx.RUnlock()
128 sentStatus, receivedStatus := p.TrafficStatus()
129 ping := sentStatus.Idle - receivedStatus.Idle
130 if receivedStatus.Idle > sentStatus.Idle {
136 RemoteAddr: p.Addr().String(),
139 Duration: sentStatus.Duration.String(),
140 TotalSent: sentStatus.Bytes,
141 TotalReceived: receivedStatus.Bytes,
142 AverageSentRate: sentStatus.AvgRate,
143 AverageReceivedRate: receivedStatus.AvgRate,
144 CurrentSentRate: sentStatus.CurRate,
145 CurrentReceivedRate: receivedStatus.CurRate,
149 func (p *peer) getRelatedTxAndStatus(txs []*types.Tx, txStatuses *bc.TransactionStatus) ([]*types.Tx, []*bc.TxVerifyResult) {
150 var relatedTxs []*types.Tx
151 var relatedStatuses []*bc.TxVerifyResult
152 for i, tx := range txs {
153 if p.isRelatedTx(tx) {
154 relatedTxs = append(relatedTxs, tx)
155 relatedStatuses = append(relatedStatuses, txStatuses.VerifyStatus[i])
158 return relatedTxs, relatedStatuses
161 func (p *peer) isRelatedTx(tx *types.Tx) bool {
162 for _, input := range tx.Inputs {
163 switch inp := input.TypedInput.(type) {
164 case *types.SpendInput:
165 if p.filterAdds.Has(hex.EncodeToString(inp.ControlProgram)) {
170 for _, output := range tx.Outputs {
171 if p.filterAdds.Has(hex.EncodeToString(output.ControlProgram)) {
178 func (p *peer) isSPVNode() bool {
179 return !p.services.IsEnable(consensus.SFFullNode)
182 func (p *peer) markBlock(hash *bc.Hash) {
186 for p.knownBlocks.Size() >= maxKnownBlocks {
189 p.knownBlocks.Add(hash.String())
192 func (p *peer) markTransaction(hash *bc.Hash) {
196 for p.knownTxs.Size() >= maxKnownTxs {
199 p.knownTxs.Add(hash.String())
202 func (p *peer) sendBlock(block *types.Block) (bool, error) {
203 msg, err := NewBlockMessage(block)
205 return false, errors.Wrap(err, "fail on NewBlockMessage")
208 ok := p.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg})
210 blcokHash := block.Hash()
211 p.knownBlocks.Add(blcokHash.String())
216 func (p *peer) sendBlocks(blocks []*types.Block) (bool, error) {
217 msg, err := NewBlocksMessage(blocks)
219 return false, errors.Wrap(err, "fail on NewBlocksMessage")
222 if ok := p.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg}); !ok {
226 for _, block := range blocks {
227 blcokHash := block.Hash()
228 p.knownBlocks.Add(blcokHash.String())
233 func (p *peer) sendHeaders(headers []*types.BlockHeader) (bool, error) {
234 msg, err := NewHeadersMessage(headers)
236 return false, errors.New("fail on NewHeadersMessage")
239 ok := p.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg})
243 func (p *peer) sendMerkleBlock(block *types.Block, txStatuses *bc.TransactionStatus) (bool, error) {
244 msg := NewMerkleBlockMessage()
245 if err := msg.setRawBlockHeader(block.BlockHeader); err != nil {
249 relatedTxs, relatedStatuses := p.getRelatedTxAndStatus(block.Transactions, txStatuses)
251 txHashes, txFlags := types.GetTxMerkleTreeProof(block.Transactions, relatedTxs)
252 if err := msg.setTxInfo(txHashes, txFlags, relatedTxs); err != nil {
256 statusHashes := types.GetStatusMerkleTreeProof(txStatuses.VerifyStatus, txFlags)
257 if err := msg.setStatusInfo(statusHashes, relatedStatuses); err != nil {
261 ok := p.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg})
265 func (p *peer) sendTransactions(txs []*types.Tx) (bool, error) {
266 for _, tx := range txs {
267 if p.isSPVNode() && !p.isRelatedTx(tx) {
270 msg, err := NewTransactionMessage(tx)
272 return false, errors.Wrap(err, "failed to tx msg")
275 if p.knownTxs.Has(tx.ID.String()) {
278 if ok := p.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg}); !ok {
281 p.knownTxs.Add(tx.ID.String())
286 func (p *peer) setStatus(height uint64, hash *bc.Hash) {
293 type peerSet struct {
296 peers map[string]*peer
299 // newPeerSet creates a new peer set to track the active participants.
300 func newPeerSet(basePeerSet BasePeerSet) *peerSet {
302 BasePeerSet: basePeerSet,
303 peers: make(map[string]*peer),
307 func (ps *peerSet) ProcessIllegal(peerID string, level byte, reason string) {
309 peer := ps.peers[peerID]
315 if banned := ps.IsBanned(peer.Addr().String(), level, reason); banned {
316 ps.removePeer(peerID)
321 func (ps *peerSet) addPeer(peer BasePeer, height uint64, hash *bc.Hash) {
323 defer ps.mtx.Unlock()
325 if _, ok := ps.peers[peer.ID()]; !ok {
326 ps.peers[peer.ID()] = newPeer(height, hash, peer)
329 log.WithField("module", logModule).Warning("add existing peer to blockKeeper")
332 func (ps *peerSet) bestPeer(flag consensus.ServiceFlag) *peer {
334 defer ps.mtx.RUnlock()
337 for _, p := range ps.peers {
338 if !p.services.IsEnable(flag) {
341 if bestPeer == nil || p.height > bestPeer.height || (p.height == bestPeer.height && p.IsLAN()) {
348 func (ps *peerSet) broadcastMinedBlock(block *types.Block) error {
349 msg, err := NewMinedBlockMessage(block)
351 return errors.Wrap(err, "fail on broadcast mined block")
355 peers := ps.peersWithoutBlock(&hash)
356 for _, peer := range peers {
357 if peer.isSPVNode() {
360 if ok := peer.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg}); !ok {
361 log.WithFields(log.Fields{"module": logModule, "peer": peer.Addr(), "type": reflect.TypeOf(msg), "message": msg.String()}).Warning("send message to peer error")
362 ps.removePeer(peer.ID())
365 peer.markBlock(&hash)
370 func (ps *peerSet) broadcastNewStatus(bestBlock, genesisBlock *types.Block) error {
371 bestBlockHash := bestBlock.Hash()
372 peers := ps.peersWithoutBlock(&bestBlockHash)
374 genesisHash := genesisBlock.Hash()
375 msg := NewStatusResponseMessage(&bestBlock.BlockHeader, &genesisHash)
376 for _, peer := range peers {
377 if ok := peer.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg}); !ok {
378 log.WithFields(log.Fields{"module": logModule, "peer": peer.Addr(), "type": reflect.TypeOf(msg), "message": msg.String()}).Warning("send message to peer error")
379 ps.removePeer(peer.ID())
386 func (ps *peerSet) broadcastTx(tx *types.Tx) error {
387 msg, err := NewTransactionMessage(tx)
389 return errors.Wrap(err, "fail on broadcast tx")
392 peers := ps.peersWithoutTx(&tx.ID)
393 for _, peer := range peers {
394 if peer.isSPVNode() && !peer.isRelatedTx(tx) {
397 if ok := peer.TrySend(BlockchainChannel, struct{ BlockchainMessage }{msg}); !ok {
398 log.WithFields(log.Fields{
401 "type": reflect.TypeOf(msg),
402 "message": msg.String(),
403 }).Warning("send message to peer error")
404 ps.removePeer(peer.ID())
407 peer.markTransaction(&tx.ID)
412 // Peer retrieves the registered peer with the given id.
413 func (ps *peerSet) getPeer(id string) *peer {
415 defer ps.mtx.RUnlock()
419 func (ps *peerSet) getPeerInfos() []*PeerInfo {
421 defer ps.mtx.RUnlock()
423 result := []*PeerInfo{}
424 for _, peer := range ps.peers {
425 result = append(result, peer.getPeerInfo())
430 func (ps *peerSet) peersWithoutBlock(hash *bc.Hash) []*peer {
432 defer ps.mtx.RUnlock()
435 for _, peer := range ps.peers {
436 if !peer.knownBlocks.Has(hash.String()) {
437 peers = append(peers, peer)
443 func (ps *peerSet) peersWithoutTx(hash *bc.Hash) []*peer {
445 defer ps.mtx.RUnlock()
448 for _, peer := range ps.peers {
449 if !peer.knownTxs.Has(hash.String()) {
450 peers = append(peers, peer)
456 func (ps *peerSet) removePeer(peerID string) {
458 delete(ps.peers, peerID)
460 ps.StopPeerGracefully(peerID)