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.
460 lines
15 KiB
460 lines
15 KiB
package node
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"math/rand"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
"github.com/harmony-one/harmony/api/proto"
|
|
proto_node "github.com/harmony-one/harmony/api/proto/node"
|
|
"github.com/harmony-one/harmony/block"
|
|
"github.com/harmony-one/harmony/consensus"
|
|
"github.com/harmony-one/harmony/core/types"
|
|
nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
|
|
"github.com/harmony-one/harmony/internal/utils"
|
|
"github.com/harmony-one/harmony/p2p"
|
|
"github.com/harmony-one/harmony/shard"
|
|
"github.com/harmony-one/harmony/staking/availability"
|
|
"github.com/harmony-one/harmony/staking/slash"
|
|
staking "github.com/harmony-one/harmony/staking/types"
|
|
"github.com/harmony-one/harmony/webhooks"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
const p2pMsgPrefixSize = 5
|
|
const p2pNodeMsgPrefixSize = proto.MessageTypeBytes + proto.MessageCategoryBytes
|
|
|
|
// some messages have uninteresting fields in header, slash, receipt and crosslink are
|
|
// such messages. This function assumes that input bytes are a slice which already
|
|
// past those not relevant header bytes.
|
|
func (node *Node) processSkippedMsgTypeByteValue(
|
|
cat proto_node.BlockMessageType, content []byte,
|
|
) {
|
|
switch cat {
|
|
case proto_node.SlashCandidate:
|
|
node.processSlashCandidateMessage(content)
|
|
case proto_node.Receipt:
|
|
node.ProcessReceiptMessage(content)
|
|
case proto_node.CrossLink:
|
|
node.ProcessCrossLinkMessage(content)
|
|
default:
|
|
utils.Logger().Error().
|
|
Int("message-iota-value", int(cat)).
|
|
Msg("Invariant usage of processSkippedMsgTypeByteValue violated")
|
|
}
|
|
}
|
|
|
|
var (
|
|
errInvalidPayloadSize = errors.New("invalid payload size")
|
|
errWrongBlockMsgSize = errors.New("invalid block message size")
|
|
latestSentCrosslinkNum uint64 = 0
|
|
)
|
|
|
|
// HandleNodeMessage parses the message and dispatch the actions.
|
|
func (node *Node) HandleNodeMessage(
|
|
ctx context.Context,
|
|
msgPayload []byte,
|
|
actionType proto_node.MessageType,
|
|
) error {
|
|
switch actionType {
|
|
case proto_node.Transaction:
|
|
node.transactionMessageHandler(msgPayload)
|
|
case proto_node.Staking:
|
|
node.stakingMessageHandler(msgPayload)
|
|
case proto_node.Block:
|
|
switch blockMsgType := proto_node.BlockMessageType(msgPayload[0]); blockMsgType {
|
|
case proto_node.Sync:
|
|
blocks := []*types.Block{}
|
|
if err := rlp.DecodeBytes(msgPayload[1:], &blocks); err != nil {
|
|
utils.Logger().Error().
|
|
Err(err).
|
|
Msg("block sync")
|
|
} else {
|
|
// for non-beaconchain node, subscribe to beacon block broadcast
|
|
if node.Blockchain().ShardID() != shard.BeaconChainShardID {
|
|
for _, block := range blocks {
|
|
if block.ShardID() == 0 {
|
|
utils.Logger().Info().
|
|
Msgf("Beacon block being handled by block channel: %d", block.NumberU64())
|
|
go func(blk *types.Block) {
|
|
node.BeaconBlockChannel <- blk
|
|
}(block)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
case
|
|
proto_node.SlashCandidate,
|
|
proto_node.Receipt,
|
|
proto_node.CrossLink:
|
|
// skip first byte which is blockMsgType
|
|
node.processSkippedMsgTypeByteValue(blockMsgType, msgPayload[1:])
|
|
}
|
|
default:
|
|
utils.Logger().Error().
|
|
Str("Unknown actionType", string(actionType))
|
|
}
|
|
return nil
|
|
}
|
|
|
|
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.Logger().Error().
|
|
Err(err).
|
|
Msg("Failed to deserialize transaction list")
|
|
return
|
|
}
|
|
node.addPendingTransactions(txs)
|
|
}
|
|
}
|
|
|
|
func (node *Node) stakingMessageHandler(msgPayload []byte) {
|
|
txMessageType := proto_node.TransactionMessageType(msgPayload[0])
|
|
|
|
switch txMessageType {
|
|
case proto_node.Send:
|
|
txs := staking.StakingTransactions{}
|
|
err := rlp.Decode(bytes.NewReader(msgPayload[1:]), &txs) // skip the Send messge type
|
|
if err != nil {
|
|
utils.Logger().Error().
|
|
Err(err).
|
|
Msg("Failed to deserialize staking transaction list")
|
|
return
|
|
}
|
|
node.addPendingStakingTransactions(txs)
|
|
}
|
|
}
|
|
|
|
// 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) {
|
|
groups := []nodeconfig.GroupID{node.NodeConfig.GetClientGroupID()}
|
|
utils.Logger().Info().
|
|
Msgf(
|
|
"broadcasting new block %d, group %s", newBlock.NumberU64(), groups[0],
|
|
)
|
|
msg := p2p.ConstructMessage(
|
|
proto_node.ConstructBlocksSyncMessage([]*types.Block{newBlock}),
|
|
)
|
|
if err := node.host.SendMessageToGroups(groups, msg); err != nil {
|
|
utils.Logger().Warn().Err(err).Msg("cannot broadcast new block")
|
|
}
|
|
}
|
|
|
|
// BroadcastSlash ..
|
|
func (node *Node) BroadcastSlash(witness *slash.Record) {
|
|
if err := node.host.SendMessageToGroups(
|
|
[]nodeconfig.GroupID{nodeconfig.NewGroupIDByShardID(shard.BeaconChainShardID)},
|
|
p2p.ConstructMessage(
|
|
proto_node.ConstructSlashMessage(slash.Records{*witness})),
|
|
); err != nil {
|
|
utils.Logger().Err(err).
|
|
RawJSON("record", []byte(witness.String())).
|
|
Msg("could not send slash record to beaconchain")
|
|
}
|
|
utils.Logger().Info().Msg("broadcast the double sign record")
|
|
}
|
|
|
|
// BroadcastCrossLink is called by consensus leader to
|
|
// send the new header as cross link to beacon chain.
|
|
func (node *Node) BroadcastCrossLink() {
|
|
curBlock := node.Blockchain().CurrentBlock()
|
|
if curBlock == nil {
|
|
return
|
|
}
|
|
|
|
if node.IsRunningBeaconChain() ||
|
|
!node.Blockchain().Config().IsCrossLink(curBlock.Epoch()) {
|
|
// no need to broadcast crosslink if it's beacon chain or it's not crosslink epoch
|
|
return
|
|
}
|
|
|
|
// no point to broadcast the crosslink if we aren't even in the right epoch yet
|
|
if !node.Blockchain().Config().IsCrossLink(
|
|
node.Blockchain().CurrentHeader().Epoch(),
|
|
) {
|
|
return
|
|
}
|
|
|
|
utils.Logger().Info().Msgf(
|
|
"Construct and Broadcasting new crosslink to beacon chain groupID %s",
|
|
nodeconfig.NewGroupIDByShardID(shard.BeaconChainShardID),
|
|
)
|
|
headers := []*block.Header{}
|
|
lastLink, err := node.Beaconchain().ReadShardLastCrossLink(curBlock.ShardID())
|
|
var latestBlockNum uint64
|
|
|
|
// TODO chao: record the missing crosslink in local database instead of using latest crosslink
|
|
// if cannot find latest crosslink, broadcast latest 3 block headers
|
|
if err != nil {
|
|
utils.Logger().Debug().Err(err).Msg("[BroadcastCrossLink] ReadShardLastCrossLink Failed")
|
|
header := node.Blockchain().GetHeaderByNumber(curBlock.NumberU64() - 2)
|
|
if header != nil && node.Blockchain().Config().IsCrossLink(header.Epoch()) {
|
|
headers = append(headers, header)
|
|
}
|
|
header = node.Blockchain().GetHeaderByNumber(curBlock.NumberU64() - 1)
|
|
if header != nil && node.Blockchain().Config().IsCrossLink(header.Epoch()) {
|
|
headers = append(headers, header)
|
|
}
|
|
headers = append(headers, curBlock.Header())
|
|
} else {
|
|
latestBlockNum = lastLink.BlockNum()
|
|
if latestSentCrosslinkNum > latestBlockNum && latestSentCrosslinkNum <= latestBlockNum+crossLinkBatchSize*6 {
|
|
latestBlockNum = latestSentCrosslinkNum
|
|
}
|
|
|
|
batchSize := crossLinkBatchSize
|
|
diff := curBlock.Number().Uint64() - latestBlockNum
|
|
|
|
// Increase batch size by 1 for every 5 blocks behind
|
|
batchSize += int(diff) / 5
|
|
|
|
// Cap at a sane size to avoid overload network
|
|
if batchSize > crossLinkBatchSize*2 {
|
|
batchSize = crossLinkBatchSize * 2
|
|
}
|
|
|
|
for blockNum := latestBlockNum + 1; blockNum <= curBlock.NumberU64(); blockNum++ {
|
|
header := node.Blockchain().GetHeaderByNumber(blockNum)
|
|
if header != nil && node.Blockchain().Config().IsCrossLink(header.Epoch()) {
|
|
headers = append(headers, header)
|
|
if len(headers) == batchSize {
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
utils.Logger().Info().Msgf("[BroadcastCrossLink] Broadcasting Block Headers, latestBlockNum %d, currentBlockNum %d, Number of Headers %d", latestBlockNum, curBlock.NumberU64(), len(headers))
|
|
for i, header := range headers {
|
|
utils.Logger().Debug().Msgf(
|
|
"[BroadcastCrossLink] Broadcasting %d",
|
|
header.Number().Uint64(),
|
|
)
|
|
if i == len(headers)-1 {
|
|
latestSentCrosslinkNum = header.Number().Uint64()
|
|
}
|
|
}
|
|
node.host.SendMessageToGroups(
|
|
[]nodeconfig.GroupID{nodeconfig.NewGroupIDByShardID(shard.BeaconChainShardID)},
|
|
p2p.ConstructMessage(
|
|
proto_node.ConstructCrossLinkMessage(node.Consensus.Blockchain, headers)),
|
|
)
|
|
}
|
|
|
|
// VerifyNewBlock is called by consensus participants to verify the block (account model) they are
|
|
// running consensus on
|
|
func (node *Node) VerifyNewBlock(newBlock *types.Block) error {
|
|
if newBlock == nil || newBlock.Header() == nil {
|
|
return errors.New("nil header or block asked to verify")
|
|
}
|
|
|
|
if newBlock.ShardID() != node.Blockchain().ShardID() {
|
|
utils.Logger().Error().
|
|
Uint32("my shard ID", node.Blockchain().ShardID()).
|
|
Uint32("new block's shard ID", newBlock.ShardID()).
|
|
Msg("[VerifyNewBlock] Wrong shard ID of the new block")
|
|
return errors.New("[VerifyNewBlock] Wrong shard ID of the new block")
|
|
}
|
|
|
|
if newBlock.NumberU64() <= node.Blockchain().CurrentBlock().NumberU64() {
|
|
return errors.Errorf("block with the same block number is already committed: %d", newBlock.NumberU64())
|
|
}
|
|
if err := node.Blockchain().Validator().ValidateHeader(newBlock, true); err != nil {
|
|
utils.Logger().Error().
|
|
Str("blockHash", newBlock.Hash().Hex()).
|
|
Err(err).
|
|
Msg("[VerifyNewBlock] Cannot validate header for the new block")
|
|
return err
|
|
}
|
|
|
|
if err := node.Blockchain().Engine().VerifyVRF(
|
|
node.Blockchain(), newBlock.Header(),
|
|
); err != nil {
|
|
utils.Logger().Error().
|
|
Str("blockHash", newBlock.Hash().Hex()).
|
|
Err(err).
|
|
Msg("[VerifyNewBlock] Cannot verify vrf for the new block")
|
|
return errors.Wrap(err,
|
|
"[VerifyNewBlock] Cannot verify vrf for the new block",
|
|
)
|
|
}
|
|
|
|
if err := node.Blockchain().Engine().VerifyShardState(
|
|
node.Blockchain(), node.Beaconchain(), newBlock.Header(),
|
|
); err != nil {
|
|
utils.Logger().Error().
|
|
Str("blockHash", newBlock.Hash().Hex()).
|
|
Err(err).
|
|
Msg("[VerifyNewBlock] Cannot verify shard state for the new block")
|
|
return errors.Wrap(err,
|
|
"[VerifyNewBlock] Cannot verify shard state for the new block",
|
|
)
|
|
}
|
|
|
|
if err := node.Blockchain().ValidateNewBlock(newBlock); err != nil {
|
|
if hooks := node.NodeConfig.WebHooks.Hooks; hooks != nil {
|
|
if p := hooks.ProtocolIssues; p != nil {
|
|
url := p.OnCannotCommit
|
|
go func() {
|
|
webhooks.DoPost(url, map[string]interface{}{
|
|
"bad-header": newBlock.Header(),
|
|
"reason": err.Error(),
|
|
})
|
|
}()
|
|
}
|
|
}
|
|
utils.Logger().Error().
|
|
Str("blockHash", newBlock.Hash().Hex()).
|
|
Int("numTx", len(newBlock.Transactions())).
|
|
Int("numStakingTx", len(newBlock.StakingTransactions())).
|
|
Err(err).
|
|
Msg("[VerifyNewBlock] Cannot Verify New Block!!!")
|
|
return errors.Errorf(
|
|
"[VerifyNewBlock] Cannot Verify New Block!!! block-hash %s txn-count %d",
|
|
newBlock.Hash().Hex(),
|
|
len(newBlock.Transactions()),
|
|
)
|
|
}
|
|
|
|
// Verify cross links
|
|
// TODO: move into ValidateNewBlock
|
|
if node.IsRunningBeaconChain() {
|
|
err := node.VerifyBlockCrossLinks(newBlock)
|
|
if err != nil {
|
|
utils.Logger().Debug().Err(err).Msg("ops2 VerifyBlockCrossLinks Failed")
|
|
return err
|
|
}
|
|
}
|
|
|
|
// TODO: move into ValidateNewBlock
|
|
if err := node.verifyIncomingReceipts(newBlock); err != nil {
|
|
utils.Logger().Error().
|
|
Str("blockHash", newBlock.Hash().Hex()).
|
|
Int("numIncomingReceipts", len(newBlock.IncomingReceipts())).
|
|
Err(err).
|
|
Msg("[VerifyNewBlock] Cannot ValidateNewBlock")
|
|
return errors.Wrapf(
|
|
err, "[VerifyNewBlock] Cannot ValidateNewBlock",
|
|
)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// 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
|
|
// 3. [leader] send cross shard tx receipts to destination shard
|
|
func (node *Node) PostConsensusProcessing(newBlock *types.Block) error {
|
|
if node.Consensus.IsLeader() {
|
|
if node.IsRunningBeaconChain() {
|
|
// TODO: consider removing this and letting other nodes broadcast new blocks.
|
|
// But need to make sure there is at least 1 node that will do the job.
|
|
node.BroadcastNewBlock(newBlock)
|
|
}
|
|
node.BroadcastCXReceipts(newBlock)
|
|
} else {
|
|
if node.Consensus.Mode() != consensus.Listening {
|
|
utils.Logger().Info().
|
|
Uint64("blockNum", newBlock.NumberU64()).
|
|
Uint64("epochNum", newBlock.Epoch().Uint64()).
|
|
Uint64("ViewId", newBlock.Header().ViewID().Uint64()).
|
|
Str("blockHash", newBlock.Hash().String()).
|
|
Int("numTxns", len(newBlock.Transactions())).
|
|
Int("numStakingTxns", len(newBlock.StakingTransactions())).
|
|
Uint32("numSignatures", node.Consensus.NumSignaturesIncludedInBlock(newBlock)).
|
|
Msg("BINGO !!! Reached Consensus")
|
|
|
|
numSig := float64(node.Consensus.NumSignaturesIncludedInBlock(newBlock))
|
|
node.Consensus.UpdateValidatorMetrics(numSig, float64(newBlock.NumberU64()))
|
|
|
|
// 1% of the validator also need to do broadcasting
|
|
rnd := rand.Intn(100)
|
|
if rnd < 1 {
|
|
// Beacon validators also broadcast new blocks to make sure beacon sync is strong.
|
|
if node.IsRunningBeaconChain() {
|
|
node.BroadcastNewBlock(newBlock)
|
|
}
|
|
node.BroadcastCXReceipts(newBlock)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Broadcast client requested missing cross shard receipts if there is any
|
|
node.BroadcastMissingCXReceipts()
|
|
|
|
if h := node.NodeConfig.WebHooks.Hooks; h != nil {
|
|
if h.Availability != nil {
|
|
for _, addr := range node.GetAddresses(newBlock.Epoch()) {
|
|
wrapper, err := node.Beaconchain().ReadValidatorInformation(addr)
|
|
if err != nil {
|
|
utils.Logger().Err(err).Str("addr", addr.Hex()).Msg("failed reaching validator info")
|
|
return nil
|
|
}
|
|
snapshot, err := node.Beaconchain().ReadValidatorSnapshot(addr)
|
|
if err != nil {
|
|
utils.Logger().Err(err).Str("addr", addr.Hex()).Msg("failed reaching validator snapshot")
|
|
return nil
|
|
}
|
|
computed := availability.ComputeCurrentSigning(
|
|
snapshot.Validator, wrapper,
|
|
)
|
|
lastBlockOfEpoch := shard.Schedule.EpochLastBlock(node.Beaconchain().CurrentBlock().Header().Epoch().Uint64())
|
|
|
|
computed.BlocksLeftInEpoch = lastBlockOfEpoch - node.Beaconchain().CurrentBlock().Header().Number().Uint64()
|
|
|
|
if err != nil && computed.IsBelowThreshold {
|
|
url := h.Availability.OnDroppedBelowThreshold
|
|
go func() {
|
|
webhooks.DoPost(url, computed)
|
|
}()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// BootstrapConsensus is the a goroutine to check number of peers and start the consensus
|
|
func (node *Node) BootstrapConsensus() error {
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
|
|
defer cancel()
|
|
min := node.Consensus.MinPeers
|
|
enoughMinPeers := make(chan struct{})
|
|
const checkEvery = 3 * time.Second
|
|
go func() {
|
|
for {
|
|
<-time.After(checkEvery)
|
|
numPeersNow := node.host.GetPeerCount()
|
|
if numPeersNow >= min {
|
|
utils.Logger().Info().Msg("[bootstrap] StartConsensus")
|
|
enoughMinPeers <- struct{}{}
|
|
return
|
|
}
|
|
utils.Logger().Info().
|
|
Int("numPeersNow", numPeersNow).
|
|
Int("targetNumPeers", min).
|
|
Dur("next-peer-count-check-in-seconds", checkEvery).
|
|
Msg("do not have enough min peers yet in bootstrap of consensus")
|
|
}
|
|
}()
|
|
|
|
select {
|
|
case <-ctx.Done():
|
|
return ctx.Err()
|
|
case <-enoughMinPeers:
|
|
go func() {
|
|
node.startConsensus <- struct{}{}
|
|
}()
|
|
return nil
|
|
}
|
|
}
|
|
|