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TUN inbound: Add autoSystemDNS on Linux (to TUN's gateway) (#6773)

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https://github.com/XTLS/Xray-core/issues/6454#issuecomment-4931311976
https://github.com/XTLS/Xray-core/pull/6773#issuecomment-5755516423
https://github.com/XTLS/Xray-core/pull/6807#issuecomment-5807844210
This commit is contained in:
youugiuhiuh
2026-09-27 20:07:53 +00:00
committed by GitHub
parent 7a018833ec
commit 47a2c2ffdc
10 changed files with 1023 additions and 3 deletions
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app/dns/dns.go
+22
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@@ -212,6 +212,28 @@ func (s *DNS) IsOwnLink(ctx context.Context) bool {
return false
}
// MayUseSystemResolver reports whether any name server configured here could
// still resolve through the system resolver. That is what happens when no name
// server is configured at all, and it is also what a name server pointed at
// "localhost" does. Callers that are about to redirect the system resolver need
// to know, because a resolution path that reaches it would then loop back to
// them.
//
// Any such server is enough: name servers can be selected per domain, so a
// single local one makes some query reach the system resolver even when
// independent upstreams are configured alongside it.
func (s *DNS) MayUseSystemResolver() bool {
if len(s.clients) == 0 {
return true
}
for _, client := range s.clients {
if _, isLocal := client.server.(*LocalNameServer); isLocal {
return true
}
}
return false
}
// LookupIP implements dns.Client.
func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, uint32, error) {
// Normalize the FQDN form query