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Zone: caching for ANY query response implemented.

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This commit is contained in:
Shreyas Zare
2017-01-14 14:29:42 +05:30
parent a8a3b5848e
commit f1c3c69792
1 changed files with 22 additions and 2 deletions
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24
DnsServerCore/Zone.cs
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@@ -511,6 +511,22 @@ namespace DnsServerCore
}
else
{
foreach (DnsQuestionRecord question in response.Question)
{
uint ttl = 60;
if (question.Type == DnsResourceRecordType.ANY)
{
Zone zone = CreateZone(rootZone, question.Name);
DnsResourceRecord[] soaRecord = zone.GetRecord(question.Name, DnsResourceRecordType.SOA);
if ((soaRecord != null) && (soaRecord.Length > 0))
ttl = (soaRecord[0].RDATA as DnsSOARecord).Minimum;
zone.SetRecord(new DnsResourceRecord[] { new DnsResourceRecord(question.Name, DnsResourceRecordType.ANY, DnsClass.Internet, ttl, new DnsEmptyRecord()) });
}
}
allRecords.AddRange(response.Answer);
}
break;
@@ -641,13 +657,17 @@ namespace DnsServerCore
else
return zoneEntry.ResourceRecords; //return CNAME record
}
else if (_authoritativeZone && (type == DnsResourceRecordType.ANY))
else if (type == DnsResourceRecordType.ANY)
{
if ((!_authoritativeZone) && !zoneTypeEntries.ContainsKey(type))
return null; //domain does not exists in cache
List<DnsResourceRecord> records = new List<DnsResourceRecord>(5);
foreach (KeyValuePair<DnsResourceRecordType, ZoneEntry> entry in zoneTypeEntries)
{
records.AddRange(entry.Value.ResourceRecords);
if (entry.Key != DnsResourceRecordType.ANY)
records.AddRange(entry.Value.ResourceRecords);
}
return records.ToArray(); //all authoritative records