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p2p/discover: don't update endpoint for unauthenticated nodes in discv4

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lightclient 2024-05-27 14:36:38 +02:00 committed by Felix Lange
parent af0a3274be
commit 7afcb398e5
1 changed files with 8 additions and 0 deletions
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8
p2p/discover/table.go
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@ -513,6 +513,14 @@ func (tab *Table) handleAddNode(req addNodeOp) bool {
}
b := tab.bucket(req.node.ID())
if !req.isInbound && req.node.Seq() == 0 && contains(b.entries, req.node.ID()) {
// Special case for discv4: because endpoint information is not
// authenticated, do not update until the node is successfully communicated
// with. Therefore, non-inbounds which are already in the bucket should be
// skipped.
return false
}
if tab.bumpInBucket(b, req.node.Node) {
// Already in bucket, update record.
return false