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feat(dns): add parallel query (#5239)

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This commit is contained in:
Meow
2025-11-21 13:45:42 +08:00
committed by GitHub
parent cd51f57535
commit f14fd1cbee
14 changed files with 422 additions and 121 deletions
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app/dns/nameserver_udp.go
+9 -3
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@@ -54,6 +54,7 @@ func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher
Execute: s.RequestsCleanup,
}
s.udpServer = udp.NewDispatcher(dispatcher, s.HandleResponse)
errors.LogInfo(context.Background(), "DNS: created UDP client initialized for ", address.NetAddr())
return s
}
@@ -63,6 +64,11 @@ func (s *ClassicNameServer) Name() string {
return s.cacheController.name
}
// IsDisableCache implements Server.
func (s *ClassicNameServer) IsDisableCache() bool {
return s.cacheController.disableCache
}
// RequestsCleanup clears expired items from cache
func (s *ClassicNameServer) RequestsCleanup() error {
now := time.Now()
@@ -92,7 +98,7 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
ipRec, err := parseResponse(payload.Bytes())
payload.Release()
if err != nil {
errors.LogError(ctx, s.Name(), " fail to parse responded DNS udp")
errors.LogErrorInner(ctx, err, s.Name(), " fail to parse responded DNS udp")
return
}
@@ -105,7 +111,7 @@ func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_prot
}
s.Unlock()
if !ok {
errors.LogError(ctx, s.Name(), " cannot find the pending request")
errors.LogErrorInner(ctx, err, s.Name(), " cannot find the pending request")
return
}
@@ -155,7 +161,7 @@ func (s *ClassicNameServer) getCacheController() *CacheController {
// sendQuery implements CachedNameserver.
func (s *ClassicNameServer) sendQuery(ctx context.Context, _ chan<- error, fqdn string, option dns_feature.IPOption) {
errors.LogDebug(ctx, s.Name(), " querying DNS for: ", fqdn)
errors.LogInfo(ctx, s.Name(), " querying DNS for: ", fqdn)
reqs := buildReqMsgs(fqdn, option, s.newReqID, genEDNS0Options(s.clientIP, 0))