You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
622 lines
21 KiB
622 lines
21 KiB
package node
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/gob"
|
|
"fmt"
|
|
"os"
|
|
"strconv"
|
|
"time"
|
|
|
|
"github.com/dedis/kyber"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
"github.com/harmony-one/harmony/blockchain"
|
|
"github.com/harmony-one/harmony/core/types"
|
|
hmy_crypto "github.com/harmony-one/harmony/crypto"
|
|
"github.com/harmony-one/harmony/crypto/pki"
|
|
"github.com/harmony-one/harmony/p2p"
|
|
"github.com/harmony-one/harmony/p2p/host"
|
|
"github.com/harmony-one/harmony/proto"
|
|
"github.com/harmony-one/harmony/proto/client"
|
|
"github.com/harmony-one/harmony/proto/consensus"
|
|
proto_identity "github.com/harmony-one/harmony/proto/identity"
|
|
proto_node "github.com/harmony-one/harmony/proto/node"
|
|
)
|
|
|
|
const (
|
|
// MinNumberOfTransactionsPerBlock is the min number of transaction per a block.
|
|
MinNumberOfTransactionsPerBlock = 6000
|
|
// MaxNumberOfTransactionsPerBlock is the max number of transaction per a block.
|
|
MaxNumberOfTransactionsPerBlock = 8000
|
|
// NumBlocksBeforeStateBlock is the number of blocks allowed before generating state block
|
|
NumBlocksBeforeStateBlock = 1000
|
|
)
|
|
|
|
// MaybeBroadcastAsValidator returns if the node is a validator node.
|
|
func (node *Node) MaybeBroadcastAsValidator(content []byte) {
|
|
if node.SelfPeer.ValidatorID > 0 && node.SelfPeer.ValidatorID <= host.MaxBroadCast {
|
|
go host.BroadcastMessageFromValidator(node.host, node.SelfPeer, node.Consensus.GetValidatorPeers(), content)
|
|
}
|
|
}
|
|
|
|
// StreamHandler handles a new incoming connection.
|
|
func (node *Node) StreamHandler(s p2p.Stream) {
|
|
defer s.Close()
|
|
|
|
// Read p2p message payload
|
|
content, err := p2p.ReadMessageContent(s)
|
|
|
|
if err != nil {
|
|
node.log.Error("Read p2p data failed", "err", err, "node", node)
|
|
return
|
|
}
|
|
// TODO: this is tree broadcasting. this needs to be removed later. Actually the whole logic needs to be replaced by p2p.
|
|
node.MaybeBroadcastAsValidator(content)
|
|
|
|
consensusObj := node.Consensus
|
|
|
|
msgCategory, err := proto.GetMessageCategory(content)
|
|
if err != nil {
|
|
node.log.Error("Read node type failed", "err", err, "node", node)
|
|
return
|
|
}
|
|
|
|
msgType, err := proto.GetMessageType(content)
|
|
if err != nil {
|
|
node.log.Error("Read action type failed", "err", err, "node", node)
|
|
return
|
|
}
|
|
|
|
msgPayload, err := proto.GetMessagePayload(content)
|
|
if err != nil {
|
|
node.log.Error("Read message payload failed", "err", err, "node", node)
|
|
return
|
|
}
|
|
|
|
switch msgCategory {
|
|
case proto.Identity:
|
|
actionType := proto_identity.IDMessageType(msgType)
|
|
switch actionType {
|
|
case proto_identity.Identity:
|
|
messageType := proto_identity.MessageType(msgPayload[0])
|
|
switch messageType {
|
|
case proto_identity.Register:
|
|
fmt.Println("received a identity message")
|
|
// TODO(ak): fix it.
|
|
// node.processPOWMessage(msgPayload)
|
|
node.log.Info("NET: received message: IDENTITY/REGISTER")
|
|
default:
|
|
node.log.Error("Announce message should be sent to IdentityChain")
|
|
}
|
|
}
|
|
case proto.Consensus:
|
|
// if !(node.State == NodeDoingConsensus || node.State == NodeLeader || node.State == NodeReadyForConsensus) {
|
|
// node.log.Info("This node with ", "peer", node.SelfPeer, "can not join consensus because they are either not noding consensus or not a leader", nil)
|
|
// break
|
|
// }
|
|
actionType := consensus.ConMessageType(msgType)
|
|
switch actionType {
|
|
case consensus.Consensus:
|
|
if consensusObj.IsLeader {
|
|
node.log.Info("NET: received message: Consensus/Leader")
|
|
consensusObj.ProcessMessageLeader(msgPayload)
|
|
} else {
|
|
node.log.Info("NET: received message: Consensus/Validator")
|
|
consensusObj.ProcessMessageValidator(msgPayload)
|
|
// TODO(minhdoan): add logic to check if the current blockchain is not sync with other consensus
|
|
// we should switch to other state rather than DoingConsensus.
|
|
}
|
|
}
|
|
case proto.Node:
|
|
actionType := proto_node.MessageType(msgType)
|
|
switch actionType {
|
|
case proto_node.Transaction:
|
|
node.log.Info("NET: received message: Node/Transaction")
|
|
node.transactionMessageHandler(msgPayload)
|
|
case proto_node.Block:
|
|
node.log.Info("NET: received message: Node/Block")
|
|
blockMsgType := proto_node.BlockMessageType(msgPayload[0])
|
|
switch blockMsgType {
|
|
case proto_node.Sync:
|
|
decoder := gob.NewDecoder(bytes.NewReader(msgPayload[1:])) // skip the Sync messge type
|
|
blocks := new([]*blockchain.Block)
|
|
decoder.Decode(blocks)
|
|
if node.Client != nil && node.Client.UpdateBlocks != nil && blocks != nil {
|
|
node.Client.UpdateBlocks(*blocks)
|
|
}
|
|
}
|
|
case proto_node.Client:
|
|
node.log.Info("NET: received message: Node/Client")
|
|
clientMsgType := proto_node.ClientMessageType(msgPayload[0])
|
|
switch clientMsgType {
|
|
case proto_node.LookupUtxo:
|
|
decoder := gob.NewDecoder(bytes.NewReader(msgPayload[1:])) // skip the LookupUtxo messge type
|
|
|
|
fetchUtxoMessage := new(proto_node.FetchUtxoMessage)
|
|
decoder.Decode(fetchUtxoMessage)
|
|
|
|
utxoMap := node.UtxoPool.GetUtxoMapByAddresses(fetchUtxoMessage.Addresses)
|
|
|
|
node.SendMessage(fetchUtxoMessage.Sender, client.ConstructFetchUtxoResponseMessage(&utxoMap, node.UtxoPool.ShardID))
|
|
}
|
|
case proto_node.Control:
|
|
node.log.Info("NET: received message: Node/Control")
|
|
controlType := msgPayload[0]
|
|
if proto_node.ControlMessageType(controlType) == proto_node.STOP {
|
|
if node.Chain == nil {
|
|
node.log.Debug("Stopping Node", "node", node, "numBlocks", len(node.blockchain.Blocks), "numTxsProcessed", node.countNumTransactionsInBlockchain())
|
|
|
|
sizeInBytes := node.UtxoPool.GetSizeInByteOfUtxoMap()
|
|
node.log.Debug("UtxoPool Report", "numEntries", len(node.UtxoPool.UtxoMap), "sizeInBytes", sizeInBytes)
|
|
|
|
avgBlockSizeInBytes := 0
|
|
txCount := 0
|
|
blockCount := 0
|
|
totalTxCount := 0
|
|
totalBlockCount := 0
|
|
avgTxSize := 0
|
|
|
|
for _, block := range node.blockchain.Blocks {
|
|
if block.IsStateBlock() {
|
|
totalTxCount += int(block.State.NumTransactions)
|
|
totalBlockCount += int(block.State.NumBlocks)
|
|
} else {
|
|
byteBuffer := bytes.NewBuffer([]byte{})
|
|
encoder := gob.NewEncoder(byteBuffer)
|
|
encoder.Encode(block)
|
|
avgBlockSizeInBytes += len(byteBuffer.Bytes())
|
|
|
|
txCount += len(block.Transactions)
|
|
blockCount++
|
|
totalTxCount += len(block.TransactionIds)
|
|
totalBlockCount++
|
|
|
|
byteBuffer = bytes.NewBuffer([]byte{})
|
|
encoder = gob.NewEncoder(byteBuffer)
|
|
encoder.Encode(block.Transactions)
|
|
avgTxSize += len(byteBuffer.Bytes())
|
|
}
|
|
}
|
|
if blockCount != 0 {
|
|
avgBlockSizeInBytes = avgBlockSizeInBytes / blockCount
|
|
avgTxSize = avgTxSize / txCount
|
|
}
|
|
|
|
node.log.Debug("Blockchain Report", "totalNumBlocks", totalBlockCount, "avgBlockSizeInCurrentEpoch", avgBlockSizeInBytes, "totalNumTxs", totalTxCount, "avgTxSzieInCurrentEpoch", avgTxSize)
|
|
} else {
|
|
node.log.Debug("Stopping Node (Account Model)", "node", node, "CurBlockNum", node.Chain.CurrentHeader().Number, "numTxsProcessed", node.countNumTransactionsInBlockchainAccount())
|
|
}
|
|
|
|
os.Exit(0)
|
|
}
|
|
case proto_node.PING:
|
|
node.pingMessageHandler(msgPayload)
|
|
case proto_node.PONG:
|
|
node.pongMessageHandler(msgPayload)
|
|
}
|
|
case proto.Client:
|
|
actionType := client.MessageType(msgType)
|
|
node.log.Info("NET: received message: Client/Transaction")
|
|
switch actionType {
|
|
case client.Transaction:
|
|
if node.Client != nil {
|
|
node.Client.TransactionMessageHandler(msgPayload)
|
|
}
|
|
}
|
|
default:
|
|
node.log.Error("Unknown", "MsgCategory", msgCategory)
|
|
}
|
|
|
|
// Post processing after receiving messsages.
|
|
// if node.State == NodeJoinedShard || node.State == NodeReadyForConsensus {
|
|
// go node.DoSyncing()
|
|
// }
|
|
}
|
|
|
|
func (node *Node) transactionMessageHandler(msgPayload []byte) {
|
|
txMessageType := proto_node.TransactionMessageType(msgPayload[0])
|
|
|
|
switch txMessageType {
|
|
case proto_node.Send:
|
|
if node.Chain != nil {
|
|
txs := types.Transactions{}
|
|
err := rlp.Decode(bytes.NewReader(msgPayload[1:]), &txs) // skip the Send messge type
|
|
if err != nil {
|
|
node.log.Error("Failed to deserialize transaction list", "error", err)
|
|
}
|
|
node.addPendingTransactionsAccount(txs)
|
|
} else {
|
|
txDecoder := gob.NewDecoder(bytes.NewReader(msgPayload[1:])) // skip the Send messge type
|
|
txList := new([]*blockchain.Transaction)
|
|
err := txDecoder.Decode(&txList)
|
|
if err != nil {
|
|
node.log.Error("Failed to deserialize transaction list", "error", err)
|
|
}
|
|
node.addPendingTransactions(*txList)
|
|
}
|
|
|
|
case proto_node.Request:
|
|
reader := bytes.NewBuffer(msgPayload[1:])
|
|
txIDs := make(map[[32]byte]bool)
|
|
buf := make([]byte, 32) // 32 byte hash Id
|
|
for {
|
|
_, err := reader.Read(buf)
|
|
if err != nil {
|
|
break
|
|
}
|
|
|
|
var txID [32]byte
|
|
copy(txID[:], buf)
|
|
txIDs[txID] = true
|
|
}
|
|
|
|
var txToReturn []*blockchain.Transaction
|
|
for _, tx := range node.pendingTransactions {
|
|
if txIDs[tx.ID] {
|
|
txToReturn = append(txToReturn, tx)
|
|
}
|
|
}
|
|
// TODO: return the transaction list to requester
|
|
case proto_node.Unlock:
|
|
txAndProofDecoder := gob.NewDecoder(bytes.NewReader(msgPayload[1:])) // skip the Unlock messge type
|
|
|
|
txAndProofs := new([]*blockchain.Transaction)
|
|
err := txAndProofDecoder.Decode(&txAndProofs)
|
|
if err != nil {
|
|
node.log.Error("Failed deserializing transaction and proofs list", "node", node)
|
|
}
|
|
node.log.Debug("RECEIVED Unlock MESSAGE", "num", len(*txAndProofs))
|
|
|
|
node.addPendingTransactions(*txAndProofs)
|
|
}
|
|
}
|
|
|
|
// WaitForConsensusReady ...
|
|
func (node *Node) WaitForConsensusReady(readySignal chan struct{}) {
|
|
node.log.Debug("Waiting for Consensus ready", "node", node)
|
|
|
|
var newBlock *blockchain.Block
|
|
timeoutCount := 0
|
|
for { // keep waiting for Consensus ready
|
|
retry := false
|
|
// TODO(minhdoan, rj): Refactor by sending signal in channel instead of waiting for 10 seconds.
|
|
select {
|
|
case <-readySignal:
|
|
time.Sleep(100 * time.Millisecond) // Delay a bit so validator is catched up.
|
|
case <-time.After(200 * time.Second):
|
|
retry = true
|
|
node.Consensus.ResetState()
|
|
timeoutCount++
|
|
node.log.Debug("Consensus timeout, retry!", "count", timeoutCount, "node", node)
|
|
}
|
|
|
|
//node.log.Debug("Adding new block", "currentChainSize", len(node.blockchain.Blocks), "numTxs", len(node.blockchain.GetLatestBlock().Transactions), "PrevHash", node.blockchain.GetLatestBlock().PrevBlockHash, "Hash", node.blockchain.GetLatestBlock().Hash)
|
|
if !retry {
|
|
if len(node.blockchain.Blocks) > NumBlocksBeforeStateBlock {
|
|
// Generate state block and run consensus on it
|
|
newBlock = node.blockchain.CreateStateBlock(node.UtxoPool)
|
|
} else {
|
|
// Normal tx block consensus
|
|
for {
|
|
// Once we have pending transactions we will try creating a new block
|
|
if len(node.pendingTransactions) >= MaxNumberOfTransactionsPerBlock {
|
|
node.log.Debug("Start selecting transactions")
|
|
selectedTxs, crossShardTxAndProofs := node.getTransactionsForNewBlock(MaxNumberOfTransactionsPerBlock)
|
|
|
|
if len(selectedTxs) < MinNumberOfTransactionsPerBlock {
|
|
node.log.Debug("No valid transactions exist", "pendingTx", len(node.pendingTransactions))
|
|
} else {
|
|
node.log.Debug("Creating new block", "numAllTxs", len(selectedTxs), "numCrossTxs", len(crossShardTxAndProofs), "pendingTxs", len(node.pendingTransactions), "currentChainSize", len(node.blockchain.Blocks))
|
|
|
|
node.transactionInConsensus = selectedTxs
|
|
node.CrossTxsInConsensus = crossShardTxAndProofs
|
|
newBlock = blockchain.NewBlock(selectedTxs, node.blockchain.GetLatestBlock().Hash, node.Consensus.ShardID, false)
|
|
break
|
|
}
|
|
}
|
|
// If not enough transactions to run Consensus,
|
|
// periodically check whether we have enough transactions to package into block.
|
|
time.Sleep(1 * time.Second)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Send the new block to Consensus so it can be confirmed.
|
|
if newBlock != nil {
|
|
node.BlockChannel <- *newBlock
|
|
}
|
|
}
|
|
}
|
|
|
|
// WaitForConsensusReadyAccount ...
|
|
func (node *Node) WaitForConsensusReadyAccount(readySignal chan struct{}) {
|
|
node.log.Debug("Waiting for Consensus ready", "node", node)
|
|
|
|
var newBlock *types.Block
|
|
timeoutCount := 0
|
|
for { // keep waiting for Consensus ready
|
|
retry := false
|
|
select {
|
|
case <-readySignal:
|
|
time.Sleep(100 * time.Millisecond) // Delay a bit so validator is catched up.
|
|
case <-time.After(200 * time.Second):
|
|
retry = true
|
|
node.Consensus.ResetState()
|
|
timeoutCount++
|
|
node.log.Debug("Consensus timeout, retry!", "count", timeoutCount, "node", node)
|
|
}
|
|
|
|
if !retry {
|
|
for {
|
|
node.log.Debug("Num Pending Txs", "Num", len(node.pendingTransactionsAccount))
|
|
if len(node.pendingTransactionsAccount) >= 1 {
|
|
// Normal tx block consensus
|
|
selectedTxs, _ := node.getTransactionsForNewBlockAccount(MaxNumberOfTransactionsPerBlock)
|
|
node.Worker.CommitTransactions(selectedTxs)
|
|
block, err := node.Worker.Commit()
|
|
if err != nil {
|
|
node.log.Debug("Failed commiting new block", "Error", err)
|
|
} else {
|
|
newBlock = block
|
|
break
|
|
}
|
|
}
|
|
// If not enough transactions to run Consensus,
|
|
// periodically check whether we have enough transactions to package into block.
|
|
time.Sleep(1 * time.Second)
|
|
}
|
|
}
|
|
|
|
// Send the new block to Consensus so it can be confirmed.
|
|
if newBlock != nil {
|
|
node.BlockChannelAccount <- newBlock
|
|
}
|
|
}
|
|
}
|
|
|
|
// SendBackProofOfAcceptOrReject is called by consensus participants to verify the block they are running consensus on
|
|
func (node *Node) SendBackProofOfAcceptOrReject() {
|
|
if node.ClientPeer != nil && len(node.CrossTxsToReturn) != 0 {
|
|
node.crossTxToReturnMutex.Lock()
|
|
proofs := []blockchain.CrossShardTxProof{}
|
|
for _, txAndProof := range node.CrossTxsToReturn {
|
|
proofs = append(proofs, *txAndProof.Proof)
|
|
}
|
|
node.CrossTxsToReturn = nil
|
|
node.crossTxToReturnMutex.Unlock()
|
|
|
|
node.log.Debug("SENDING PROOF TO CLIENT", "proofs", len(proofs))
|
|
node.SendMessage(*node.ClientPeer, client.ConstructProofOfAcceptOrRejectMessage(proofs))
|
|
}
|
|
}
|
|
|
|
// BroadcastNewBlock is called by consensus leader to sync new blocks with other clients/nodes.
|
|
// NOTE: For now, just send to the client (basically not broadcasting)
|
|
func (node *Node) BroadcastNewBlock(newBlock *blockchain.Block) {
|
|
if node.ClientPeer != nil {
|
|
node.log.Debug("NET: SENDING NEW BLOCK TO CLIENT")
|
|
node.SendMessage(*node.ClientPeer, proto_node.ConstructBlocksSyncMessage([]blockchain.Block{*newBlock}))
|
|
}
|
|
}
|
|
|
|
// VerifyNewBlock is called by consensus participants to verify the block they are running consensus on
|
|
func (node *Node) VerifyNewBlock(newBlock *blockchain.Block) bool {
|
|
// TODO: just a reminder for syncing. we need to check if the new block is fit with the current blockchain.
|
|
// The current blockchain can be in the progress of being synced.
|
|
var verified bool
|
|
if newBlock.AccountBlock != nil {
|
|
accountBlock := new(types.Block)
|
|
err := rlp.DecodeBytes(newBlock.AccountBlock, accountBlock)
|
|
if err != nil {
|
|
node.log.Error("Failed decoding the block with RLP")
|
|
}
|
|
verified = node.VerifyNewBlockAccount(accountBlock)
|
|
} else if newBlock.IsStateBlock() {
|
|
verified = node.UtxoPool.VerifyStateBlock(newBlock)
|
|
} else {
|
|
verified = node.UtxoPool.VerifyTransactions(newBlock.Transactions)
|
|
}
|
|
if verified {
|
|
// Change the syncing state.
|
|
node.State = NodeDoingConsensus
|
|
}
|
|
return verified
|
|
}
|
|
|
|
// VerifyNewBlockAccount is called by consensus participants to verify the block (account model) they are running consensus on
|
|
func (node *Node) VerifyNewBlockAccount(newBlock *types.Block) bool {
|
|
err := node.Chain.ValidateNewBlock(newBlock, pki.GetAddressFromPublicKey(node.SelfPeer.PubKey))
|
|
if err != nil {
|
|
node.log.Debug("Failed verifying new block", "Error", err, "tx", newBlock.Transactions()[0])
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
// PostConsensusProcessing is called by consensus participants, after consensus is done, to:
|
|
// 1. add the new block to blockchain
|
|
// 2. [leader] move cross shard tx and proof to the list where they wait to be sent to the client
|
|
func (node *Node) PostConsensusProcessing(newBlock *blockchain.Block) {
|
|
if newBlock.IsStateBlock() {
|
|
// Clear out old tx blocks and put state block as genesis
|
|
if node.db != nil {
|
|
node.log.Info("Deleting old blocks.")
|
|
for i := 1; i <= len(node.blockchain.Blocks); i++ {
|
|
blockchain.Delete(node.db, strconv.Itoa(i))
|
|
}
|
|
}
|
|
node.blockchain.Blocks = []*blockchain.Block{}
|
|
}
|
|
|
|
if node.Consensus.IsLeader {
|
|
// Move crossTx-in-consensus into the list to be returned to client
|
|
for _, crossTxAndProof := range node.CrossTxsInConsensus {
|
|
crossTxAndProof.Proof.BlockHash = newBlock.Hash
|
|
// TODO: fill in the signature proofs
|
|
}
|
|
if len(node.CrossTxsInConsensus) != 0 {
|
|
node.addCrossTxsToReturn(node.CrossTxsInConsensus)
|
|
node.CrossTxsInConsensus = []*blockchain.CrossShardTxAndProof{}
|
|
}
|
|
|
|
node.SendBackProofOfAcceptOrReject()
|
|
node.BroadcastNewBlock(newBlock)
|
|
}
|
|
|
|
accountBlock := new(types.Block)
|
|
err := rlp.DecodeBytes(newBlock.AccountBlock, accountBlock)
|
|
if err != nil {
|
|
node.log.Error("Failed decoding the block with RLP")
|
|
}
|
|
|
|
node.AddNewBlock(newBlock)
|
|
node.UpdateUtxoAndState(newBlock)
|
|
|
|
}
|
|
|
|
// AddNewBlockAccount is usedd to add new block into the blockchain.
|
|
func (node *Node) AddNewBlockAccount(newBlock *types.Block) {
|
|
num, err := node.Chain.InsertChain([]*types.Block{newBlock})
|
|
if err != nil {
|
|
node.log.Debug("Error adding to chain", "numBlocks", num, "Error", err)
|
|
}
|
|
}
|
|
|
|
// AddNewBlock is usedd to add new block into the utxo-based blockchain.
|
|
func (node *Node) AddNewBlock(newBlock *blockchain.Block) {
|
|
// Add it to blockchain
|
|
node.blockchain.Blocks = append(node.blockchain.Blocks, newBlock)
|
|
// Store it into leveldb.
|
|
if node.db != nil {
|
|
node.log.Info("Writing new block into disk.")
|
|
newBlock.Write(node.db, strconv.Itoa(len(node.blockchain.Blocks)))
|
|
}
|
|
|
|
// Account model
|
|
accountBlock := new(types.Block)
|
|
err := rlp.DecodeBytes(newBlock.AccountBlock, accountBlock)
|
|
if err != nil {
|
|
node.log.Error("Failed decoding the block with RLP")
|
|
}
|
|
node.AddNewBlockAccount(accountBlock)
|
|
}
|
|
|
|
// UpdateUtxoAndState updates Utxo and state.
|
|
func (node *Node) UpdateUtxoAndState(newBlock *blockchain.Block) {
|
|
// Update UTXO pool
|
|
if newBlock.IsStateBlock() {
|
|
newUtxoPool := blockchain.CreateUTXOPoolFromGenesisBlock(newBlock)
|
|
node.UtxoPool.UtxoMap = newUtxoPool.UtxoMap
|
|
} else {
|
|
node.UtxoPool.Update(newBlock.Transactions)
|
|
}
|
|
// Clear transaction-in-Consensus list
|
|
node.transactionInConsensus = []*blockchain.Transaction{}
|
|
}
|
|
|
|
func (node *Node) pingMessageHandler(msgPayload []byte) int {
|
|
ping, err := proto_node.GetPingMessage(msgPayload)
|
|
if err != nil {
|
|
node.log.Error("Can't get Ping Message")
|
|
return -1
|
|
}
|
|
// node.log.Info("Ping", "Msg", ping)
|
|
|
|
peer := new(p2p.Peer)
|
|
peer.IP = ping.Node.IP
|
|
peer.Port = ping.Node.Port
|
|
peer.ValidatorID = ping.Node.ValidatorID
|
|
|
|
peer.PubKey = hmy_crypto.Ed25519Curve.Point()
|
|
err = peer.PubKey.UnmarshalBinary(ping.Node.PubKey[:])
|
|
if err != nil {
|
|
node.log.Error("UnmarshalBinary Failed", "error", err)
|
|
return -1
|
|
}
|
|
|
|
if ping.Node.Role == proto_node.ClientRole {
|
|
node.log.Info("Add Client Peer to Node", "Node", node.Consensus.GetNodeID(), "Client", peer)
|
|
node.ClientPeer = peer
|
|
return 0
|
|
}
|
|
|
|
// Add to Node's peer list anyway
|
|
node.AddPeers([]*p2p.Peer{peer})
|
|
|
|
peers := node.Consensus.GetValidatorPeers()
|
|
pong := proto_node.NewPongMessage(peers, node.Consensus.PublicKeys)
|
|
buffer := pong.ConstructPongMessage()
|
|
|
|
// Send a Pong message directly to the sender
|
|
// This is necessary because the sender will need to get a ValidatorID
|
|
// Just broadcast won't work, some validators won't receive the latest
|
|
// PublicKeys as we rely on a valid ValidatorID to do broadcast.
|
|
// This is very buggy, but we will move to libp2p, hope the problem will
|
|
// be resolved then.
|
|
// However, I disable it for now as we are sending redundant PONG messages
|
|
// to all validators. This may not be needed. But it maybe add back.
|
|
// p2p.SendMessage(*peer, buffer)
|
|
|
|
// Broadcast the message to all validators, as publicKeys is updated
|
|
// FIXME: HAR-89 use a separate nodefind/neighbor message
|
|
host.BroadcastMessageFromLeader(node.GetHost(), peers, buffer, node.Consensus.OfflinePeers)
|
|
|
|
return len(peers)
|
|
}
|
|
|
|
func (node *Node) pongMessageHandler(msgPayload []byte) int {
|
|
pong, err := proto_node.GetPongMessage(msgPayload)
|
|
if err != nil {
|
|
node.log.Error("Can't get Pong Message")
|
|
return -1
|
|
}
|
|
|
|
// node.log.Debug("pongMessageHandler", "pong", pong, "nodeID", node.Consensus.GetNodeID())
|
|
|
|
peers := make([]*p2p.Peer, 0)
|
|
|
|
for _, p := range pong.Peers {
|
|
peer := new(p2p.Peer)
|
|
peer.IP = p.IP
|
|
peer.Port = p.Port
|
|
peer.ValidatorID = p.ValidatorID
|
|
|
|
peer.PubKey = hmy_crypto.Ed25519Curve.Point()
|
|
err = peer.PubKey.UnmarshalBinary(p.PubKey[:])
|
|
if err != nil {
|
|
node.log.Error("UnmarshalBinary Failed", "error", err)
|
|
continue
|
|
}
|
|
peers = append(peers, peer)
|
|
}
|
|
|
|
if len(peers) > 0 {
|
|
node.AddPeers(peers)
|
|
}
|
|
|
|
// Reset Validator PublicKeys every time we receive PONG message from Leader
|
|
// The PublicKeys has to be idential across the shard on every node
|
|
// TODO (lc): we need to handle RemovePeer situation
|
|
publicKeys := make([]kyber.Point, 0)
|
|
|
|
// Create the the PubKey from the []byte sent from leader
|
|
for _, k := range pong.PubKeys {
|
|
key := hmy_crypto.Ed25519Curve.Point()
|
|
err = key.UnmarshalBinary(k[:])
|
|
if err != nil {
|
|
node.log.Error("UnmarshalBinary Failed PubKeys", "error", err)
|
|
continue
|
|
}
|
|
publicKeys = append(publicKeys, key)
|
|
}
|
|
|
|
if node.State == NodeWaitToJoin {
|
|
node.State = NodeJoinedShard
|
|
// Notify JoinShard to stop sending Ping messages
|
|
if node.StopPing != nil {
|
|
node.StopPing <- struct{}{}
|
|
}
|
|
}
|
|
|
|
return node.Consensus.UpdatePublicKeys(publicKeys)
|
|
}
|
|
|