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Code Issues Releases Activity

Refine DNS strategies

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This commit is contained in:
JimhHan
2021-04-09 23:36:36 +08:00
parent f4a048aa0c
commit 726a722019
21 changed files with 255 additions and 208 deletions
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12
app/dns/nameserver_quic.go
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@ -268,17 +268,19 @@ func (s *QUICNameServer) findIPsForDomain(domain string, option dns_feature.IPOp
}
// QueryIP is called from dns.Server->queryIPTimeout
func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, disableCache bool) ([]net.IP, error) {
func (s *QUICNameServer) QueryIP(ctx context.Context, domain string, clientIP net.IP, option dns_feature.IPOption, cs CacheStrategy) ([]net.IP, error) {
fqdn := Fqdn(domain)
if disableCache {
if cs == CacheStrategy_Cache_DISABLE {
newError("DNS cache is disabled. Querying IP for ", domain, " at ", s.name).AtDebug().WriteToLog()
} else {
ips, err := s.findIPsForDomain(fqdn, option)
if err != errRecordNotFound {
newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
return ips, err
if cs == CacheStrategy_Cache_NOERROR && err == nil {
newError(s.name, " cache HIT ", domain, " -> ", ips).Base(err).AtDebug().WriteToLog()
log.Record(&log.DNSLog{s.name, domain, ips, log.DNSCacheHit, 0, err})
return ips, err
}
}
}