cerc-io/plugeth
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eth: enforce stricter known limits on idle peers

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This commit is contained in:
Péter Szilágyi 2019-06-12 12:30:06 +03:00
parent 50e3795eef
commit fc4fee8649
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GPG Key ID: E9AE538CEDF8293D
1 changed files with 24 additions and 0 deletions
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24
eth/peer.go
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@ -196,9 +196,13 @@ func (p *peer) MarkTransaction(hash common.Hash) {
// SendTransactions sends transactions to the peer and includes the hashes
// in its transaction hash set for future reference.
func (p *peer) SendTransactions(txs types.Transactions) error {
// Mark all the transactions as known, but ensure we don't overflow our limits
for _, tx := range txs {
p.knownTxs.Add(tx.Hash())
}
for p.knownTxs.Cardinality() >= maxKnownTxs {
p.knownTxs.Pop()
}
return p2p.Send(p.rw, TxMsg, txs)
}
@ -207,9 +211,13 @@ func (p *peer) SendTransactions(txs types.Transactions) error {
func (p *peer) AsyncSendTransactions(txs []*types.Transaction) {
select {
case p.queuedTxs <- txs:
// Mark all the transactions as known, but ensure we don't overflow our limits
for _, tx := range txs {
p.knownTxs.Add(tx.Hash())
}
for p.knownTxs.Cardinality() >= maxKnownTxs {
p.knownTxs.Pop()
}
default:
p.Log().Debug("Dropping transaction propagation", "count", len(txs))
}
@ -218,9 +226,13 @@ func (p *peer) AsyncSendTransactions(txs []*types.Transaction) {
// SendNewBlockHashes announces the availability of a number of blocks through
// a hash notification.
func (p *peer) SendNewBlockHashes(hashes []common.Hash, numbers []uint64) error {
// Mark all the block hashes as known, but ensure we don't overflow our limits
for _, hash := range hashes {
p.knownBlocks.Add(hash)
}
for p.knownBlocks.Cardinality() >= maxKnownBlocks {
p.knownBlocks.Pop()
}
request := make(newBlockHashesData, len(hashes))
for i := 0; i < len(hashes); i++ {
request[i].Hash = hashes[i]
@ -235,7 +247,11 @@ func (p *peer) SendNewBlockHashes(hashes []common.Hash, numbers []uint64) error
func (p *peer) AsyncSendNewBlockHash(block *types.Block) {
select {
case p.queuedAnns <- block:
// Mark all the block hash as known, but ensure we don't overflow our limits
p.knownBlocks.Add(block.Hash())
for p.knownBlocks.Cardinality() >= maxKnownBlocks {
p.knownBlocks.Pop()
}
default:
p.Log().Debug("Dropping block announcement", "number", block.NumberU64(), "hash", block.Hash())
}
@ -243,7 +259,11 @@ func (p *peer) AsyncSendNewBlockHash(block *types.Block) {
// SendNewBlock propagates an entire block to a remote peer.
func (p *peer) SendNewBlock(block *types.Block, td *big.Int) error {
// Mark all the block hash as known, but ensure we don't overflow our limits
p.knownBlocks.Add(block.Hash())
for p.knownBlocks.Cardinality() >= maxKnownBlocks {
p.knownBlocks.Pop()
}
return p2p.Send(p.rw, NewBlockMsg, []interface{}{block, td})
}
@ -252,7 +272,11 @@ func (p *peer) SendNewBlock(block *types.Block, td *big.Int) error {
func (p *peer) AsyncSendNewBlock(block *types.Block, td *big.Int) {
select {
case p.queuedProps <- &propEvent{block: block, td: td}:
// Mark all the block hash as known, but ensure we don't overflow our limits
p.knownBlocks.Add(block.Hash())
for p.knownBlocks.Cardinality() >= maxKnownBlocks {
p.knownBlocks.Pop()
}
default:
p.Log().Debug("Dropping block propagation", "number", block.NumberU64(), "hash", block.Hash())
}