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refactor: Async DNS

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世界
2026-08-30 17:41:43 +08:00
parent 90d75b9673
commit 5d424ea2ac
29 changed files with 1956 additions and 994 deletions
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route/dns.go
+6 -8
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@@ -50,19 +50,17 @@ func (r *Router) HijackDNSPacket(ctx context.Context, payload []byte, writer N.P
}
destination := metadata.Destination
metadata.Destination = M.Socksaddr{}
go func() {
exchangeErr := r.exchangeDNSPacket(ctx, &message, writer, metadata, destination)
r.dns.ExchangeAsync(adapter.WithContext(ctx, &metadata), &message, adapter.DNSQueryOptions{}, func(response *mDNS.Msg, exchangeErr error) {
if exchangeErr == nil {
exchangeErr = r.writeDNSPacketResponse(&message, response, writer, destination)
}
if exchangeErr != nil && !R.IsRejected(exchangeErr) && !E.IsClosedOrCanceled(exchangeErr) {
r.logger.ErrorContext(ctx, E.Cause(exchangeErr, "process DNS packet"))
}
}()
})
}
func (r *Router) exchangeDNSPacket(ctx context.Context, message *mDNS.Msg, writer N.PacketWriter, metadata adapter.InboundContext, destination M.Socksaddr) error {
response, err := r.dns.Exchange(adapter.WithContext(ctx, &metadata), message, adapter.DNSQueryOptions{})
if err != nil {
return err
}
func (r *Router) writeDNSPacketResponse(message *mDNS.Msg, response *mDNS.Msg, writer N.PacketWriter, destination M.Socksaddr) error {
responseBuffer, err := dns.TruncateDNSMessage(message, response, 1024)
if err != nil {
return err