9 log "github.com/sirupsen/logrus"
10 "github.com/tendermint/tmlibs/flowrate"
11 "gopkg.in/fatih/set.v0"
13 "github.com/vapor/consensus"
14 "github.com/vapor/errors"
15 msgs "github.com/vapor/netsync/messages"
16 "github.com/vapor/protocol/bc"
17 "github.com/vapor/protocol/bc/types"
21 maxKnownTxs = 32768 // Maximum transactions hashes to keep in the known list (prevent DOS)
22 maxKnownSignatures = 1024 // Maximum block signatures to keep in the known list (prevent DOS)
23 maxKnownBlocks = 1024 // Maximum block hashes to keep in the known list (prevent DOS)
24 maxFilterAddressSize = 50
25 maxFilterAddressCount = 1000
31 errSendStatusMsg = errors.New("send status msg fail")
32 ErrPeerMisbehave = errors.New("peer is misbehave")
35 //BasePeer is the interface for connection level peer
36 type BasePeer interface {
39 ServiceFlag() consensus.ServiceFlag
40 TrafficStatus() (*flowrate.Status, *flowrate.Status)
41 TrySend(byte, interface{}) bool
45 //BasePeerSet is the intergace for connection level peer manager
46 type BasePeerSet interface {
47 StopPeerGracefully(string)
48 IsBanned(peerID string, level byte, reason string) bool
51 type BroadcastMsg interface {
52 FilterTargetPeers(ps *PeerSet) []string
53 MarkSendRecord(ps *PeerSet, peers []string)
59 // PeerInfo indicate peer status snap
60 type PeerInfo struct {
61 ID string `json:"peer_id"`
62 RemoteAddr string `json:"remote_addr"`
63 Height uint64 `json:"height"`
64 Ping string `json:"ping"`
65 Duration string `json:"duration"`
66 TotalSent int64 `json:"total_sent"`
67 TotalReceived int64 `json:"total_received"`
68 AverageSentRate int64 `json:"average_sent_rate"`
69 AverageReceivedRate int64 `json:"average_received_rate"`
70 CurrentSentRate int64 `json:"current_sent_rate"`
71 CurrentReceivedRate int64 `json:"current_received_rate"`
77 services consensus.ServiceFlag
80 knownTxs *set.Set // Set of transaction hashes known to be known by this peer
81 knownBlocks *set.Set // Set of block hashes known to be known by this peer
82 knownSignatures *set.Set // Set of block signatures known to be known by this peer
83 knownStatus uint64 // Set of chain status known to be known by this peer
84 filterAdds *set.Set // Set of addresses that the spv node cares about.
87 func newPeer(basePeer BasePeer) *Peer {
90 services: basePeer.ServiceFlag(),
92 knownBlocks: set.New(),
93 knownSignatures: set.New(),
94 filterAdds: set.New(),
98 func (p *Peer) Height() uint64 {
100 defer p.mtx.RUnlock()
104 func (p *Peer) AddFilterAddress(address []byte) {
108 if p.filterAdds.Size() >= maxFilterAddressCount {
109 log.WithField("module", logModule).Warn("the count of filter addresses is greater than limit")
112 if len(address) > maxFilterAddressSize {
113 log.WithField("module", logModule).Warn("the size of filter address is greater than limit")
117 p.filterAdds.Add(hex.EncodeToString(address))
120 func (p *Peer) AddFilterAddresses(addresses [][]byte) {
121 if !p.filterAdds.IsEmpty() {
124 for _, address := range addresses {
125 p.AddFilterAddress(address)
129 func (p *Peer) FilterClear() {
133 func (p *Peer) GetBlockByHeight(height uint64) bool {
134 msg := struct{ msgs.BlockchainMessage }{&msgs.GetBlockMessage{Height: height}}
135 return p.TrySend(msgs.BlockchainChannel, msg)
138 func (p *Peer) GetBlocks(locator []*bc.Hash, stopHash *bc.Hash) bool {
139 msg := struct{ msgs.BlockchainMessage }{msgs.NewGetBlocksMessage(locator, stopHash)}
140 return p.TrySend(msgs.BlockchainChannel, msg)
143 func (p *Peer) GetHeaders(locator []*bc.Hash, stopHash *bc.Hash) bool {
144 msg := struct{ msgs.BlockchainMessage }{msgs.NewGetHeadersMessage(locator, stopHash)}
145 return p.TrySend(msgs.BlockchainChannel, msg)
148 func (p *Peer) GetPeerInfo() *PeerInfo {
150 defer p.mtx.RUnlock()
152 sentStatus, receivedStatus := p.TrafficStatus()
153 ping := sentStatus.Idle - receivedStatus.Idle
154 if receivedStatus.Idle > sentStatus.Idle {
160 RemoteAddr: p.Addr().String(),
163 Duration: sentStatus.Duration.String(),
164 TotalSent: sentStatus.Bytes,
165 TotalReceived: receivedStatus.Bytes,
166 AverageSentRate: sentStatus.AvgRate,
167 AverageReceivedRate: receivedStatus.AvgRate,
168 CurrentSentRate: sentStatus.CurRate,
169 CurrentReceivedRate: receivedStatus.CurRate,
173 func (p *Peer) getRelatedTxAndStatus(txs []*types.Tx, txStatuses *bc.TransactionStatus) ([]*types.Tx, []*bc.TxVerifyResult) {
174 var relatedTxs []*types.Tx
175 var relatedStatuses []*bc.TxVerifyResult
176 for i, tx := range txs {
177 if p.isRelatedTx(tx) {
178 relatedTxs = append(relatedTxs, tx)
179 relatedStatuses = append(relatedStatuses, txStatuses.VerifyStatus[i])
182 return relatedTxs, relatedStatuses
185 func (p *Peer) isRelatedTx(tx *types.Tx) bool {
186 for _, input := range tx.Inputs {
187 switch inp := input.TypedInput.(type) {
188 case *types.SpendInput:
189 if p.filterAdds.Has(hex.EncodeToString(inp.ControlProgram)) {
194 for _, output := range tx.Outputs {
195 if p.filterAdds.Has(hex.EncodeToString(output.ControlProgram())) {
202 func (p *Peer) isSPVNode() bool {
203 return !p.services.IsEnable(consensus.SFFullNode)
206 func (p *Peer) MarkBlock(hash *bc.Hash) {
210 for p.knownBlocks.Size() >= maxKnownBlocks {
213 p.knownBlocks.Add(hash.String())
216 func (p *Peer) markNewStatus(height uint64) {
220 p.knownStatus = height
223 func (p *Peer) markSign(signature []byte) {
227 for p.knownSignatures.Size() >= maxKnownSignatures {
228 p.knownSignatures.Pop()
230 p.knownSignatures.Add(hex.EncodeToString(signature))
233 func (p *Peer) markTransaction(hash *bc.Hash) {
237 for p.knownTxs.Size() >= maxKnownTxs {
240 p.knownTxs.Add(hash.String())
243 func (ps *PeerSet) PeersWithoutBlock(hash bc.Hash) []string {
245 defer ps.mtx.RUnlock()
248 for _, peer := range ps.peers {
249 if !peer.knownBlocks.Has(hash.String()) {
250 peers = append(peers, peer.ID())
256 func (ps *PeerSet) PeersWithoutSign(signature []byte) []string {
258 defer ps.mtx.RUnlock()
261 for _, peer := range ps.peers {
262 if !peer.knownSignatures.Has(hex.EncodeToString(signature)) {
263 peers = append(peers, peer.ID())
269 func (p *Peer) SendBlock(block *types.Block) (bool, error) {
270 msg, err := msgs.NewBlockMessage(block)
272 return false, errors.Wrap(err, "fail on NewBlockMessage")
275 ok := p.TrySend(msgs.BlockchainChannel, struct{ msgs.BlockchainMessage }{msg})
277 blcokHash := block.Hash()
278 p.knownBlocks.Add(blcokHash.String())
283 func (p *Peer) SendBlocks(blocks []*types.Block) (bool, error) {
284 msg, err := msgs.NewBlocksMessage(blocks)
286 return false, errors.Wrap(err, "fail on NewBlocksMessage")
289 if ok := p.TrySend(msgs.BlockchainChannel, struct{ msgs.BlockchainMessage }{msg}); !ok {
293 for _, block := range blocks {
294 blcokHash := block.Hash()
295 p.knownBlocks.Add(blcokHash.String())
300 func (p *Peer) SendHeaders(headers []*types.BlockHeader) (bool, error) {
301 msg, err := msgs.NewHeadersMessage(headers)
303 return false, errors.New("fail on NewHeadersMessage")
306 ok := p.TrySend(msgs.BlockchainChannel, struct{ msgs.BlockchainMessage }{msg})
310 func (p *Peer) SendMerkleBlock(block *types.Block, txStatuses *bc.TransactionStatus) (bool, error) {
311 msg := msgs.NewMerkleBlockMessage()
312 if err := msg.SetRawBlockHeader(block.BlockHeader); err != nil {
316 relatedTxs, relatedStatuses := p.getRelatedTxAndStatus(block.Transactions, txStatuses)
318 txHashes, txFlags := types.GetTxMerkleTreeProof(block.Transactions, relatedTxs)
319 if err := msg.SetTxInfo(txHashes, txFlags, relatedTxs); err != nil {
323 statusHashes := types.GetStatusMerkleTreeProof(txStatuses.VerifyStatus, txFlags)
324 if err := msg.SetStatusInfo(statusHashes, relatedStatuses); err != nil {
328 ok := p.TrySend(msgs.BlockchainChannel, struct{ msgs.BlockchainMessage }{msg})
332 func (p *Peer) SendTransactions(txs []*types.Tx) error {
333 validTxs := make([]*types.Tx, 0, len(txs))
334 for i, tx := range txs {
335 if p.isSPVNode() && !p.isRelatedTx(tx) || p.knownTxs.Has(tx.ID.String()) {
339 validTxs = append(validTxs, tx)
340 if len(validTxs) != msgs.TxsMsgMaxTxNum && i != len(txs)-1 {
344 msg, err := msgs.NewTransactionsMessage(validTxs)
349 if ok := p.TrySend(msgs.BlockchainChannel, struct{ msgs.BlockchainMessage }{msg}); !ok {
350 return errors.New("failed to send txs msg")
353 for _, validTx := range validTxs {
354 p.knownTxs.Add(validTx.ID.String())
357 validTxs = make([]*types.Tx, 0, len(txs))
363 func (p *Peer) SendStatus(header *types.BlockHeader) error {
364 msg := msgs.NewStatusMessage(header)
365 if ok := p.TrySend(msgs.BlockchainChannel, struct{ msgs.BlockchainMessage }{msg}); !ok {
366 return errSendStatusMsg
368 p.markNewStatus(header.Height)
372 func (p *Peer) SetStatus(height uint64, hash *bc.Hash) {
379 type PeerSet struct {
382 peers map[string]*Peer
385 // newPeerSet creates a new peer set to track the active participants.
386 func NewPeerSet(basePeerSet BasePeerSet) *PeerSet {
388 BasePeerSet: basePeerSet,
389 peers: make(map[string]*Peer),
393 func (ps *PeerSet) ProcessIllegal(peerID string, level byte, reason string) {
395 peer := ps.peers[peerID]
401 if banned := ps.IsBanned(peer.Addr().String(), level, reason); banned {
402 ps.RemovePeer(peerID)
407 func (ps *PeerSet) AddPeer(peer BasePeer) {
409 defer ps.mtx.Unlock()
411 if _, ok := ps.peers[peer.ID()]; !ok {
412 ps.peers[peer.ID()] = newPeer(peer)
415 log.WithField("module", logModule).Warning("add existing peer to blockKeeper")
418 func (ps *PeerSet) BestPeer(flag consensus.ServiceFlag) *Peer {
420 defer ps.mtx.RUnlock()
423 for _, p := range ps.peers {
424 if !p.services.IsEnable(flag) {
427 if bestPeer == nil || p.height > bestPeer.height || (p.height == bestPeer.height && p.IsLAN()) {
434 //SendMsg send message to the target peer.
435 func (ps *PeerSet) SendMsg(peerID string, msgChannel byte, msg interface{}) bool {
436 peer := ps.GetPeer(peerID)
441 ok := peer.TrySend(msgChannel, msg)
443 ps.RemovePeer(peerID)
448 //BroadcastMsg Broadcast message to the target peers
449 // and mark the message send record
450 func (ps *PeerSet) BroadcastMsg(bm BroadcastMsg) error {
451 //filter target peers
452 peers := bm.FilterTargetPeers(ps)
454 //broadcast to target peers
455 peersSuccess := make([]string, 0)
456 for _, peer := range peers {
457 if ok := ps.SendMsg(peer, bm.GetChan(), bm.GetMsg()); !ok {
458 log.WithFields(log.Fields{"module": logModule, "peer": peer, "type": reflect.TypeOf(bm.GetMsg()), "message": bm.MsgString()}).Warning("send message to peer error")
461 peersSuccess = append(peersSuccess, peer)
464 //mark the message send record
465 bm.MarkSendRecord(ps, peersSuccess)
469 func (ps *PeerSet) BroadcastNewStatus(bestBlock *types.Block) error {
470 msg := msgs.NewStatusMessage(&bestBlock.BlockHeader)
471 peers := ps.peersWithoutNewStatus(bestBlock.Height)
472 for _, peer := range peers {
473 if ok := peer.TrySend(msgs.BlockchainChannel, struct{ msgs.BlockchainMessage }{msg}); !ok {
474 ps.RemovePeer(peer.ID())
478 peer.markNewStatus(bestBlock.Height)
483 func (ps *PeerSet) BroadcastTx(tx *types.Tx) error {
484 msg, err := msgs.NewTransactionMessage(tx)
486 return errors.Wrap(err, "fail on broadcast tx")
489 peers := ps.peersWithoutTx(&tx.ID)
490 for _, peer := range peers {
491 if peer.isSPVNode() && !peer.isRelatedTx(tx) {
494 if ok := peer.TrySend(msgs.BlockchainChannel, struct{ msgs.BlockchainMessage }{msg}); !ok {
495 log.WithFields(log.Fields{
498 "type": reflect.TypeOf(msg),
499 "message": msg.String(),
500 }).Warning("send message to peer error")
501 ps.RemovePeer(peer.ID())
504 peer.markTransaction(&tx.ID)
509 func (ps *PeerSet) ErrorHandler(peerID string, level byte, err error) {
510 if errors.Root(err) == ErrPeerMisbehave {
511 ps.ProcessIllegal(peerID, level, err.Error())
513 ps.RemovePeer(peerID)
517 // Peer retrieves the registered peer with the given id.
518 func (ps *PeerSet) GetPeer(id string) *Peer {
520 defer ps.mtx.RUnlock()
524 func (ps *PeerSet) GetPeerInfos() []*PeerInfo {
526 defer ps.mtx.RUnlock()
528 result := []*PeerInfo{}
529 for _, peer := range ps.peers {
530 result = append(result, peer.GetPeerInfo())
535 func (ps *PeerSet) MarkBlock(peerID string, hash *bc.Hash) {
536 peer := ps.GetPeer(peerID)
543 func (ps *PeerSet) MarkBlockSignature(peerID string, signature []byte) {
544 peer := ps.GetPeer(peerID)
548 peer.markSign(signature)
551 func (ps *PeerSet) MarkStatus(peerID string, height uint64) {
552 peer := ps.GetPeer(peerID)
556 peer.markNewStatus(height)
559 func (ps *PeerSet) MarkTx(peerID string, txHash bc.Hash) {
561 peer := ps.peers[peerID]
567 peer.markTransaction(&txHash)
570 func (ps *PeerSet) peersWithoutBlock(hash *bc.Hash) []*Peer {
572 defer ps.mtx.RUnlock()
575 for _, peer := range ps.peers {
576 if !peer.knownBlocks.Has(hash.String()) {
577 peers = append(peers, peer)
583 func (ps *PeerSet) peersWithoutNewStatus(height uint64) []*Peer {
585 defer ps.mtx.RUnlock()
588 for _, peer := range ps.peers {
589 if peer.knownStatus < height {
590 peers = append(peers, peer)
596 func (ps *PeerSet) peersWithoutTx(hash *bc.Hash) []*Peer {
598 defer ps.mtx.RUnlock()
601 for _, peer := range ps.peers {
602 if !peer.knownTxs.Has(hash.String()) {
603 peers = append(peers, peer)
609 func (ps *PeerSet) RemovePeer(peerID string) {
611 delete(ps.peers, peerID)
613 ps.StopPeerGracefully(peerID)
616 func (ps *PeerSet) SetStatus(peerID string, height uint64, hash *bc.Hash) {
617 peer := ps.GetPeer(peerID)
622 peer.SetStatus(height, hash)