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AuthZoneManager: added CreateForwarderZone() to create empty forwarder zone. Implemented CloneZone() feature. Fixed minor issues with ConvertZoneType().

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This commit is contained in:
Shreyas Zare
2023-09-24 16:33:46 +05:30
parent f94b1d3c62
commit 93e0416c69
1 changed files with 79 additions and 1 deletions
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80
DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs
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@@ -1005,6 +1005,30 @@ namespace DnsServerCore.Dns.ZoneManagers
return null;
}
public AuthZoneInfo CreateForwarderZone(string zoneName)
{
ForwarderZone apexZone = new ForwarderZone(zoneName);
_zoneIndexLock.EnterWriteLock();
try
{
if (_root.TryAdd(apexZone))
{
AuthZoneInfo zoneInfo = new AuthZoneInfo(apexZone);
_zoneIndex.Add(zoneInfo);
_zoneIndex.Sort();
return zoneInfo;
}
}
finally
{
_zoneIndexLock.ExitWriteLock();
}
return null;
}
public AuthZoneInfo CreateForwarderZone(string zoneName, DnsTransportProtocol forwarderProtocol, string forwarder, bool dnssecValidation, DnsForwarderRecordProxyType proxyType, string proxyAddress, ushort proxyPort, string proxyUsername, string proxyPassword, string fwdRecordComments)
{
ForwarderZone apexZone = new ForwarderZone(zoneName, forwarderProtocol, forwarder, dnssecValidation, proxyType, proxyAddress, proxyPort, proxyUsername, proxyPassword, fwdRecordComments);
@@ -1029,6 +1053,59 @@ namespace DnsServerCore.Dns.ZoneManagers
return null;
}
public AuthZoneInfo CloneZone(string zoneName, string sourceZoneName)
{
AuthZoneInfo sourceZoneInfo = GetAuthZoneInfo(sourceZoneName, false);
if (sourceZoneInfo is null)
throw new DnsServerException("No such zone was found: " + (zoneName.Length == 0 ? "." : zoneName));
AuthZoneInfo zoneInfo;
switch (sourceZoneInfo.Type)
{
case AuthZoneType.Primary:
zoneInfo = CreatePrimaryZone(zoneName, _dnsServer.ServerDomain, false);
break;
case AuthZoneType.Forwarder:
zoneInfo = CreateForwarderZone(zoneName);
break;
default:
throw new DnsServerException("Cannot clone the zone: source zone must be a primary or conditional forwarder zone.");
}
if (zoneInfo is null)
throw new DnsServerException("Failed for clone the zone: zone already exists.");
List<DnsResourceRecord> sourceRecords = new List<DnsResourceRecord>();
ListAllZoneRecords(sourceZoneName, sourceRecords);
List<DnsResourceRecord> newRecords = new List<DnsResourceRecord>(sourceRecords.Count);
foreach (DnsResourceRecord sourceRecord in sourceRecords)
{
switch (sourceRecord.Type)
{
case DnsResourceRecordType.DNSKEY:
case DnsResourceRecordType.RRSIG:
case DnsResourceRecordType.NSEC:
case DnsResourceRecordType.NSEC3:
case DnsResourceRecordType.NSEC3PARAM:
case DnsResourceRecordType.DS:
continue; //skip DNSSEC records
default:
newRecords.Add(new DnsResourceRecord(sourceRecord.Name.Substring(0, sourceRecord.Name.Length - sourceZoneName.Length) + zoneName, sourceRecord.Type, sourceRecord.Class, sourceRecord.TTL, sourceRecord.RDATA));
break;
}
}
LoadRecords(zoneInfo.ApexZone, newRecords);
return zoneInfo;
}
public void ConvertZoneType(string zoneName, AuthZoneType type)
{
AuthZoneInfo currentZoneInfo = GetAuthZoneInfo(zoneName, false);
@@ -1197,6 +1274,7 @@ namespace DnsServerCore.Dns.ZoneManagers
case DnsResourceRecordType.NSEC:
case DnsResourceRecordType.NSEC3:
case DnsResourceRecordType.NSEC3PARAM:
case DnsResourceRecordType.DS:
continue;
}
@@ -1208,7 +1286,7 @@ namespace DnsServerCore.Dns.ZoneManagers
break;
}
newZoneInfo = CreateForwarderZone(zoneName, DnsTransportProtocol.Udp, "this-server", _dnsServer.DnssecValidation, DnsForwarderRecordProxyType.DefaultProxy, null, 0, null, null, null);
newZoneInfo = CreateForwarderZone(zoneName);
break;
default: