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swarm/network: prevent relay of invalid IPs

This commit is contained in:
Felix Lange 2016-11-21 18:25:16 +01:00
parent a98d1d67d6
commit e46bda5093
1 changed files with 5 additions and 0 deletions
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5
swarm/network/hive.go
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@ -26,6 +26,7 @@ import (
"github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog" "github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/p2p/discover" "github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/p2p/netutil"
"github.com/ethereum/go-ethereum/swarm/network/kademlia" "github.com/ethereum/go-ethereum/swarm/network/kademlia"
"github.com/ethereum/go-ethereum/swarm/storage" "github.com/ethereum/go-ethereum/swarm/storage"
) )
@ -288,6 +289,10 @@ func newNodeRecord(addr *peerAddr) *kademlia.NodeRecord {
func (self *Hive) HandlePeersMsg(req *peersMsgData, from *peer) { func (self *Hive) HandlePeersMsg(req *peersMsgData, from *peer) {
var nrs []*kademlia.NodeRecord var nrs []*kademlia.NodeRecord
for _, p := range req.Peers { for _, p := range req.Peers {
if err := netutil.CheckRelayIP(from.remoteAddr.IP, p.IP); err != nil {
glog.V(logger.Detail).Infof("invalid peer IP %v from %v: %v", from.remoteAddr.IP, p.IP, err)
continue
}
nrs = append(nrs, newNodeRecord(p)) nrs = append(nrs, newNodeRecord(p))
} }
self.kad.Add(nrs) self.kad.Add(nrs)