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.
526 lines
18 KiB
526 lines
18 KiB
package node
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
pb "github.com/golang/protobuf/proto"
|
|
"github.com/harmony-one/bls/ffi/go/bls"
|
|
"github.com/harmony-one/harmony/api/proto"
|
|
proto_discovery "github.com/harmony-one/harmony/api/proto/discovery"
|
|
proto_identity "github.com/harmony-one/harmony/api/proto/identity"
|
|
"github.com/harmony-one/harmony/api/proto/message"
|
|
proto_node "github.com/harmony-one/harmony/api/proto/node"
|
|
"github.com/harmony-one/harmony/api/service"
|
|
"github.com/harmony-one/harmony/core/types"
|
|
"github.com/harmony-one/harmony/crypto/pki"
|
|
"github.com/harmony-one/harmony/internal/utils"
|
|
"github.com/harmony-one/harmony/p2p"
|
|
"github.com/harmony-one/harmony/p2p/host"
|
|
)
|
|
|
|
const (
|
|
// MaxNumberOfTransactionsPerBlock is the max number of transaction per a block.
|
|
MaxNumberOfTransactionsPerBlock = 8000
|
|
)
|
|
|
|
// MaybeBroadcastAsValidator returns if the node is a validator node.
|
|
func (node *Node) MaybeBroadcastAsValidator(content []byte) {
|
|
// TODO: this is tree-based broadcasting. this needs to be replaced by p2p gossiping.
|
|
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 network message.
|
|
func (node *Node) StreamHandler(s p2p.Stream) {
|
|
defer s.Close()
|
|
|
|
// Read p2p message payload
|
|
content, err := p2p.ReadMessageContent(s)
|
|
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Read p2p data failed", "err", err, "node", node)
|
|
return
|
|
}
|
|
|
|
node.messageHandler(content, "")
|
|
}
|
|
|
|
// ReceiveGroupMessage use libp2p pubsub mechanism to receive broadcast messages
|
|
func (node *Node) ReceiveGroupMessage() {
|
|
ctx := context.Background()
|
|
for {
|
|
if node.groupReceiver == nil {
|
|
time.Sleep(100 * time.Millisecond)
|
|
continue
|
|
}
|
|
msg, sender, err := node.groupReceiver.Receive(ctx)
|
|
if sender != node.host.GetID() {
|
|
// utils.GetLogInstance().Info("[PUBSUB]", "received group msg", len(msg), "sender", sender)
|
|
if err == nil {
|
|
// skip the first 5 bytes, 1 byte is p2p type, 4 bytes are message size
|
|
node.messageHandler(msg[5:], string(sender))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// ReceiveClientGroupMessage use libp2p pubsub mechanism to receive broadcast messages for client
|
|
func (node *Node) ReceiveClientGroupMessage() {
|
|
ctx := context.Background()
|
|
for {
|
|
if node.clientReceiver == nil {
|
|
// check less frequent on client messages
|
|
time.Sleep(1000 * time.Millisecond)
|
|
continue
|
|
}
|
|
msg, sender, err := node.clientReceiver.Receive(ctx)
|
|
if sender != node.host.GetID() {
|
|
utils.GetLogInstance().Info("[CLIENT]", "received group msg", len(msg), "sender", sender)
|
|
if err == nil {
|
|
// skip the first 5 bytes, 1 byte is p2p type, 4 bytes are message size
|
|
node.messageHandler(msg[5:], string(sender))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// messageHandler parses the message and dispatch the actions
|
|
func (node *Node) messageHandler(content []byte, sender string) {
|
|
// node.MaybeBroadcastAsValidator(content)
|
|
|
|
consensusObj := node.Consensus
|
|
|
|
msgCategory, err := proto.GetMessageCategory(content)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Read node type failed", "err", err, "node", node)
|
|
return
|
|
}
|
|
|
|
msgType, err := proto.GetMessageType(content)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Read action type failed", "err", err, "node", node)
|
|
return
|
|
}
|
|
|
|
msgPayload, err := proto.GetMessagePayload(content)
|
|
if err != nil {
|
|
utils.GetLogInstance().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")
|
|
utils.GetLogInstance().Info("NET: received message: IDENTITY/REGISTER")
|
|
default:
|
|
utils.GetLogInstance().Error("Announce message should be sent to IdentityChain")
|
|
}
|
|
}
|
|
case proto.Consensus:
|
|
msgPayload, _ := proto.GetConsensusMessagePayload(content)
|
|
if consensusObj.IsLeader {
|
|
utils.GetLogInstance().Info("NET: Leader received message:", "messageCategory", msgCategory)
|
|
consensusObj.ProcessMessageLeader(msgPayload)
|
|
} else {
|
|
utils.GetLogInstance().Info("NET: Validator received message:", "messageCategory", msgCategory)
|
|
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.DRand:
|
|
msgPayload, _ := proto.GetDRandMessagePayload(content)
|
|
if node.DRand != nil {
|
|
if node.DRand.IsLeader {
|
|
utils.GetLogInstance().Info("NET: DRand Leader received message:", "messageCategory", msgCategory)
|
|
node.DRand.ProcessMessageLeader(msgPayload)
|
|
} else {
|
|
utils.GetLogInstance().Info("NET: DRand Validator received message:", "messageCategory", msgCategory)
|
|
node.DRand.ProcessMessageValidator(msgPayload)
|
|
}
|
|
}
|
|
case proto.Staking:
|
|
msgPayload, _ := proto.GetStakingMessagePayload(content)
|
|
// Only beacon leader processes staking txn
|
|
if node.Role != BeaconLeader {
|
|
return
|
|
}
|
|
node.addStakingTxnIntoPendingTxns(msgPayload)
|
|
case proto.Node:
|
|
actionType := proto_node.MessageType(msgType)
|
|
switch actionType {
|
|
case proto_node.Transaction:
|
|
utils.GetLogInstance().Info("NET: received message: Node/Transaction")
|
|
node.transactionMessageHandler(msgPayload)
|
|
case proto_node.Block:
|
|
utils.GetLogInstance().Info("NET: received message: Node/Block")
|
|
blockMsgType := proto_node.BlockMessageType(msgPayload[0])
|
|
switch blockMsgType {
|
|
case proto_node.Sync:
|
|
var blocks []*types.Block
|
|
err := rlp.DecodeBytes(msgPayload[1:], &blocks) // skip the Sync messge type
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("block sync", "error", err)
|
|
} else {
|
|
if node.Client != nil && node.Client.UpdateBlocks != nil && blocks != nil {
|
|
node.Client.UpdateBlocks(blocks)
|
|
}
|
|
}
|
|
}
|
|
case proto_node.Control:
|
|
utils.GetLogInstance().Info("NET: received message: Node/Control")
|
|
controlType := msgPayload[0]
|
|
if proto_node.ControlMessageType(controlType) == proto_node.STOP {
|
|
utils.GetLogInstance().Debug("Stopping Node", "node", node, "numBlocks", node.blockchain.CurrentBlock().NumberU64(), "numTxsProcessed", node.countNumTransactionsInBlockchain())
|
|
|
|
var avgBlockSizeInBytes common.StorageSize
|
|
txCount := 0
|
|
blockCount := 0
|
|
avgTxSize := 0
|
|
|
|
for block := node.blockchain.CurrentBlock(); block != nil; block = node.blockchain.GetBlockByHash(block.Header().ParentHash) {
|
|
avgBlockSizeInBytes += block.Size()
|
|
txCount += len(block.Transactions())
|
|
bytes, _ := rlp.EncodeToBytes(block.Transactions())
|
|
avgTxSize += len(bytes)
|
|
blockCount++
|
|
}
|
|
|
|
if blockCount != 0 && txCount != 0 {
|
|
avgBlockSizeInBytes = avgBlockSizeInBytes / common.StorageSize(blockCount)
|
|
avgTxSize = avgTxSize / txCount
|
|
}
|
|
|
|
utils.GetLogInstance().Debug("Blockchain Report", "totalNumBlocks", blockCount, "avgBlockSizeInCurrentEpoch", avgBlockSizeInBytes, "totalNumTxs", txCount, "avgTxSzieInCurrentEpoch", avgTxSize)
|
|
|
|
os.Exit(0)
|
|
}
|
|
case proto_node.PING:
|
|
node.pingMessageHandler(msgPayload, sender)
|
|
case proto_node.PONG:
|
|
node.pongMessageHandler(msgPayload)
|
|
}
|
|
default:
|
|
utils.GetLogInstance().Error("Unknown", "MsgCategory", msgCategory)
|
|
}
|
|
}
|
|
|
|
func (node *Node) addStakingTxnIntoPendingTxns(msgPayload []byte) {
|
|
msg := &message.Message{}
|
|
err := pb.Unmarshal(msgPayload, msg)
|
|
if err == nil {
|
|
stakingRequest := msg.GetStaking()
|
|
txs := types.Transactions{}
|
|
if err = rlp.DecodeBytes(stakingRequest.Transaction, txs); err == nil {
|
|
node.addPendingTransactions(txs)
|
|
} else {
|
|
utils.GetLogInstance().Error("Failed to unmarshal staking transaction list", "error", err)
|
|
}
|
|
} else {
|
|
utils.GetLogInstance().Error("Failed to unmarshal staking msg payload", "error", err)
|
|
}
|
|
}
|
|
|
|
func (node *Node) transactionMessageHandler(msgPayload []byte) {
|
|
txMessageType := proto_node.TransactionMessageType(msgPayload[0])
|
|
|
|
switch txMessageType {
|
|
case proto_node.Send:
|
|
txs := types.Transactions{}
|
|
err := rlp.Decode(bytes.NewReader(msgPayload[1:]), &txs) // skip the Send messge type
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Failed to deserialize transaction list", "error", err)
|
|
}
|
|
node.addPendingTransactions(txs)
|
|
|
|
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 []*types.Transaction
|
|
for _, tx := range node.pendingTransactions {
|
|
if txIDs[tx.Hash()] {
|
|
txToReturn = append(txToReturn, tx)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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)
|
|
// TODO (lc): broadcast the new blocks to new nodes doing state sync
|
|
func (node *Node) BroadcastNewBlock(newBlock *types.Block) {
|
|
if node.ClientPeer != nil {
|
|
utils.GetLogInstance().Debug("Sending new block to client", "client", node.ClientPeer)
|
|
if utils.UseLibP2P {
|
|
node.host.SendMessageToGroups([]p2p.GroupID{node.MyClientGroupID}, host.ConstructP2pMessage(byte(0), proto_node.ConstructBlocksSyncMessage([]*types.Block{newBlock})))
|
|
} else {
|
|
node.SendMessage(*node.ClientPeer, proto_node.ConstructBlocksSyncMessage([]*types.Block{newBlock}))
|
|
}
|
|
}
|
|
}
|
|
|
|
// VerifyNewBlock is called by consensus participants to verify the block (account model) they are running consensus on
|
|
func (node *Node) VerifyNewBlock(newBlock *types.Block) bool {
|
|
err := node.blockchain.ValidateNewBlock(newBlock, pki.GetAddressFromPublicKey(node.SelfPeer.PubKey))
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("Failed verifying new block", "Error", err, "tx", newBlock.Transactions()[0])
|
|
return false
|
|
}
|
|
|
|
// TODO: verify the vrf randomness
|
|
_ = newBlock.Header().RandPreimage
|
|
|
|
err = node.blockchain.ValidateNewShardState(newBlock)
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("Failed to verify new sharding state", "err", err)
|
|
}
|
|
return true
|
|
}
|
|
|
|
// PostConsensusProcessing is called by consensus participants, after consensus is done, to:
|
|
// 1. add the new block to blockchain
|
|
// 2. [leader] send new block to the client
|
|
func (node *Node) PostConsensusProcessing(newBlock *types.Block) {
|
|
// if node.Role == BeaconLeader || node.Role == BeaconValidator {
|
|
// utils.GetLogInstance().Info("PostConsensusProcessing")
|
|
// node.UpdateStakingList(newBlock)
|
|
// }
|
|
if node.Consensus.IsLeader {
|
|
node.BroadcastNewBlock(newBlock)
|
|
}
|
|
node.AddNewBlock(newBlock)
|
|
|
|
// TODO: enable drand only for beacon chain
|
|
// ConfirmedBlockChannel which is listened by drand leader who will initiate DRG if its a epoch block (first block of a epoch)
|
|
if node.DRand != nil {
|
|
go func() {
|
|
node.ConfirmedBlockChannel <- newBlock
|
|
}()
|
|
}
|
|
}
|
|
|
|
// AddNewBlock is usedd to add new block into the blockchain.
|
|
func (node *Node) AddNewBlock(newBlock *types.Block) {
|
|
blockNum, err := node.blockchain.InsertChain([]*types.Block{newBlock})
|
|
|
|
if err != nil {
|
|
utils.GetLogInstance().Debug("Error adding new block to blockchain", "blockNum", blockNum, "Error", err)
|
|
} else {
|
|
utils.GetLogInstance().Info("adding new block to blockchain", "blockNum", blockNum)
|
|
}
|
|
}
|
|
|
|
func (node *Node) pingMessageHandler(msgPayload []byte, sender string) int {
|
|
if sender != "" {
|
|
_, ok := node.duplicatedPing[sender]
|
|
if !ok {
|
|
node.duplicatedPing[sender] = true
|
|
} else {
|
|
// duplicated ping message return
|
|
return 0
|
|
}
|
|
}
|
|
|
|
ping, err := proto_discovery.GetPingMessage(msgPayload)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Can't get Ping Message")
|
|
return -1
|
|
}
|
|
|
|
peer := new(p2p.Peer)
|
|
peer.IP = ping.Node.IP
|
|
peer.Port = ping.Node.Port
|
|
peer.PeerID = ping.Node.PeerID
|
|
peer.ValidatorID = ping.Node.ValidatorID
|
|
|
|
peer.PubKey = &bls.PublicKey{}
|
|
err = peer.PubKey.Deserialize(ping.Node.PubKey[:])
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("UnmarshalBinary Failed", "error", err)
|
|
return -1
|
|
}
|
|
|
|
// utils.GetLogInstance().Debug("[pingMessageHandler]", "incoming peer", peer)
|
|
|
|
// add to incoming peer list
|
|
//node.host.AddIncomingPeer(*peer)
|
|
if utils.UseLibP2P {
|
|
node.host.ConnectHostPeer(*peer)
|
|
}
|
|
|
|
if ping.Node.Role == proto_node.ClientRole {
|
|
utils.GetLogInstance().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})
|
|
|
|
// This is the old way of broadcasting pong message
|
|
if node.Consensus.IsLeader && !utils.UseLibP2P {
|
|
peers := node.Consensus.GetValidatorPeers()
|
|
pong := proto_discovery.NewPongMessage(peers, node.Consensus.PublicKeys, node.Consensus.GetLeaderPubKey())
|
|
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)
|
|
// utils.GetLogInstance().Info("PingMsgHandler send pong message")
|
|
}
|
|
|
|
return 1
|
|
}
|
|
|
|
// SendPongMessage is the a goroutine to periodcally send pong message to all peers
|
|
func (node *Node) SendPongMessage() {
|
|
tick := time.NewTicker(10 * time.Second)
|
|
numPeers := len(node.Consensus.GetValidatorPeers())
|
|
numPubKeys := len(node.Consensus.PublicKeys)
|
|
sentMessage := false
|
|
|
|
// Send Pong Message only when there is change on the number of peers
|
|
for {
|
|
select {
|
|
case <-tick.C:
|
|
peers := node.Consensus.GetValidatorPeers()
|
|
numPeersNow := len(peers)
|
|
numPubKeysNow := len(node.Consensus.PublicKeys)
|
|
|
|
// no peers, wait for another tick
|
|
if numPeersNow == 0 || numPubKeysNow == 0 {
|
|
continue
|
|
}
|
|
// new peers added
|
|
if numPubKeysNow != numPubKeys || numPeersNow != numPeers {
|
|
sentMessage = false
|
|
} else {
|
|
// stable number of peers/pubkeys, sent the pong message
|
|
if !sentMessage {
|
|
pong := proto_discovery.NewPongMessage(peers, node.Consensus.PublicKeys, node.Consensus.GetLeaderPubKey())
|
|
buffer := pong.ConstructPongMessage()
|
|
err := node.host.SendMessageToGroups([]p2p.GroupID{node.MyShardGroupID}, host.ConstructP2pMessage(byte(0), buffer))
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("[PONG] failed to send pong message", "group", node.MyShardGroupID)
|
|
continue
|
|
} else {
|
|
utils.GetLogInstance().Info("[PONG] sent pong message to", "group", node.MyShardGroupID)
|
|
}
|
|
sentMessage = true
|
|
// stop sending ping message
|
|
node.serviceManager.TakeAction(&service.Action{Action: service.Stop, ServiceType: service.PeerDiscovery})
|
|
node.startConsensus <- struct{}{}
|
|
}
|
|
}
|
|
numPeers = numPeersNow
|
|
numPubKeys = numPubKeysNow
|
|
}
|
|
}
|
|
}
|
|
|
|
func (node *Node) pongMessageHandler(msgPayload []byte) int {
|
|
pong, err := proto_discovery.GetPongMessage(msgPayload)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Can't get Pong Message")
|
|
return -1
|
|
}
|
|
|
|
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.PeerID = p.PeerID
|
|
|
|
peer.PubKey = &bls.PublicKey{}
|
|
err = peer.PubKey.Deserialize(p.PubKey[:])
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("UnmarshalBinary Failed", "error", err)
|
|
continue
|
|
}
|
|
peers = append(peers, peer)
|
|
}
|
|
|
|
if len(peers) > 0 {
|
|
node.AddPeers(peers)
|
|
}
|
|
|
|
err = node.Consensus.SetLeaderPubKey(pong.LeaderPubKey)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Unmarshal Consensus Leader PubKey Failed", "error", err)
|
|
}
|
|
err = node.DRand.SetLeaderPubKey(pong.LeaderPubKey)
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("Unmarshal DRand Leader PubKey Failed", "error", err)
|
|
}
|
|
|
|
// 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([]*bls.PublicKey, 0)
|
|
|
|
// Create the the PubKey from the []byte sent from leader
|
|
for _, k := range pong.PubKeys {
|
|
key := bls.PublicKey{}
|
|
err = key.Deserialize(k[:])
|
|
if err != nil {
|
|
utils.GetLogInstance().Error("UnmarshalBinary Failed PubKeys", "error", err)
|
|
continue
|
|
}
|
|
publicKeys = append(publicKeys, &key)
|
|
}
|
|
|
|
// utils.GetLogInstance().Debug("[pongMessageHandler]", "#keys", len(publicKeys), "#peers", len(peers))
|
|
|
|
if node.State == NodeWaitToJoin {
|
|
node.State = NodeReadyForConsensus
|
|
// Notify JoinShard to stop sending Ping messages
|
|
if node.StopPing != nil {
|
|
node.StopPing <- struct{}{}
|
|
}
|
|
}
|
|
|
|
// Stop discovery service after received pong message
|
|
data := make(map[string]interface{})
|
|
data["peer"] = p2p.GroupAction{Name: node.MyShardGroupID, Action: p2p.ActionPause}
|
|
|
|
node.serviceManager.TakeAction(&service.Action{Action: service.Notify, ServiceType: service.PeerDiscovery, Params: data})
|
|
return node.Consensus.UpdatePublicKeys(publicKeys) + node.DRand.UpdatePublicKeys(publicKeys)
|
|
}
|
|
|