gaspersic/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

eth: enable bad block reports

Browse Source 
We used to have reporting of bad blocks, but it was disabled
before the Frontier release. We need it back because users
are usually unable to provide the full RLP data of a bad
block when it occurs.

A shortcoming of this particular implementation is that the
origin peer is not tracked for blocks received during eth/63
sync. No origin peer info is still better than no report at
all though.
This commit is contained in:
Felix Lange
2016-05-24 18:49:54 +02:00
parent 5bcdbb1ce4
commit ca18202eb9
7 changed files with 104 additions and 87 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
eth/handler.go
View File

@ -83,6 +83,8 @@ type ProtocolManager struct {
// wait group is used for graceful shutdowns during downloading
// and processing
wg sync.WaitGroup
badBlockReportingEnabled bool
}
// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
@ -150,7 +152,7 @@ func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int,
// Construct the different synchronisation mechanisms
manager.downloader = downloader.New(chaindb, manager.eventMux, blockchain.HasHeader, blockchain.HasBlockAndState, blockchain.GetHeader,
blockchain.GetBlock, blockchain.CurrentHeader, blockchain.CurrentBlock, blockchain.CurrentFastBlock, blockchain.FastSyncCommitHead,
blockchain.GetTd, blockchain.InsertHeaderChain, blockchain.InsertChain, blockchain.InsertReceiptChain, blockchain.Rollback,
blockchain.GetTd, blockchain.InsertHeaderChain, manager.insertChain, blockchain.InsertReceiptChain, blockchain.Rollback,
manager.removePeer)
validator := func(block *types.Block, parent *types.Block) error {
@ -159,11 +161,24 @@ func NewProtocolManager(config *core.ChainConfig, fastSync bool, networkId int,
heighter := func() uint64 {
return blockchain.CurrentBlock().NumberU64()
}
manager.fetcher = fetcher.New(blockchain.GetBlock, validator, manager.BroadcastBlock, heighter, blockchain.InsertChain, manager.removePeer)
manager.fetcher = fetcher.New(blockchain.GetBlock, validator, manager.BroadcastBlock, heighter, manager.insertChain, manager.removePeer)
if blockchain.Genesis().Hash().Hex() == defaultGenesisHash && networkId == 1 {
glog.V(logger.Debug).Infoln("Bad Block Reporting is enabled")
manager.badBlockReportingEnabled = true
}
return manager, nil
}
func (pm *ProtocolManager) insertChain(blocks types.Blocks) (i int, err error) {
i, err = pm.blockchain.InsertChain(blocks)
if pm.badBlockReportingEnabled && core.IsValidationErr(err) && i < len(blocks) {
go sendBadBlockReport(blocks[i], err)
}
return i, err
}
func (pm *ProtocolManager) removePeer(id string) {
// Short circuit if the peer was already removed
peer := pm.peers.Peer(id)
@ -378,6 +393,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
// Update the receive timestamp of each block
for _, block := range blocks {
block.ReceivedAt = msg.ReceivedAt
block.ReceivedFrom = p
}
// Filter out any explicitly requested blocks, deliver the rest to the downloader
if blocks := pm.fetcher.FilterBlocks(blocks); len(blocks) > 0 {
@ -664,6 +680,7 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
return errResp(ErrDecode, "block validation %v: %v", msg, err)
}
request.Block.ReceivedAt = msg.ReceivedAt
request.Block.ReceivedFrom = p
// Mark the peer as owning the block and schedule it for import
p.MarkBlock(request.Block.Hash())