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Merge pull request #1064 from karalabe/downloader-attacks

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Fix two additional download vulnerabilities
This commit is contained in:
Jeffrey Wilcke
2015-05-21 09:00:12 -07:00
parent 1da145675d 06a041589f
commit af28736bd0
6 changed files with 99 additions and 28 deletions
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5
eth/peer.go
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@ -8,6 +8,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/p2p"
@ -100,8 +101,8 @@ func (p *peer) sendTransaction(tx *types.Transaction) error {
}
func (p *peer) requestHashes(from common.Hash) error {
glog.V(logger.Debug).Infof("[%s] fetching hashes (%d) %x...\n", p.id, maxHashes, from[:4])
return p2p.Send(p.rw, GetBlockHashesMsg, getBlockHashesMsgData{from, maxHashes})
glog.V(logger.Debug).Infof("[%s] fetching hashes (%d) %x...\n", p.id, downloader.MaxHashFetch, from[:4])
return p2p.Send(p.rw, GetBlockHashesMsg, getBlockHashesMsgData{from, downloader.MaxHashFetch})
}
func (p *peer) requestBlocks(hashes []common.Hash) error {