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CacheZoneManager: updated CacheRecords() to read glue records from base class and set it again on the record as per DNS server method. Implemented glue record resolution in ResolveAdditionalRecords().

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This commit is contained in:
Shreyas Zare
2021-01-26 15:51:04 +05:30
parent 4e930adea2
commit e286331008
1 changed files with 32 additions and 5 deletions
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37
DnsServerCore/Dns/ZoneManagers/CacheZoneManager.cs
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@@ -1,6 +1,6 @@
/*
Technitium DNS Server
Copyright (C) 2020 Shreyas Zare (shreyas@technitium.com)
Copyright (C) 2021 Shreyas Zare (shreyas@technitium.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -17,6 +17,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using DnsServerCore.Dns.ResourceRecords;
using DnsServerCore.Dns.Zones;
using System.Collections.Generic;
using TechnitiumLibrary.Net.Dns;
@@ -49,6 +50,14 @@ namespace DnsServerCore.Dns.ZoneManagers
protected override void CacheRecords(IReadOnlyList<DnsResourceRecord> resourceRecords)
{
//read and set glue records from base class
foreach (DnsResourceRecord resourceRecord in resourceRecords)
{
IReadOnlyList<DnsResourceRecord> glueRecords = GetGlueRecordsFrom(resourceRecord);
if (glueRecords.Count > 0)
resourceRecord.SetGlueRecords(glueRecords);
}
if (resourceRecords.Count == 1)
{
CacheZone zone = _root.GetOrAdd(resourceRecords[0].Name, delegate (string key)
@@ -89,15 +98,15 @@ namespace DnsServerCore.Dns.ZoneManagers
switch (refRecord.Type)
{
case DnsResourceRecordType.NS:
ResolveAdditionalRecords((refRecord.RDATA as DnsNSRecord).NameServer, serveStale, additionalRecords);
ResolveAdditionalRecords(refRecord, (refRecord.RDATA as DnsNSRecord).NameServer, serveStale, additionalRecords);
break;
case DnsResourceRecordType.MX:
ResolveAdditionalRecords((refRecord.RDATA as DnsMXRecord).Exchange, serveStale, additionalRecords);
ResolveAdditionalRecords(refRecord, (refRecord.RDATA as DnsMXRecord).Exchange, serveStale, additionalRecords);
break;
case DnsResourceRecordType.SRV:
ResolveAdditionalRecords((refRecord.RDATA as DnsSRVRecord).Target, serveStale, additionalRecords);
ResolveAdditionalRecords(refRecord, (refRecord.RDATA as DnsSRVRecord).Target, serveStale, additionalRecords);
break;
}
}
@@ -105,8 +114,26 @@ namespace DnsServerCore.Dns.ZoneManagers
return additionalRecords;
}
private void ResolveAdditionalRecords(string domain, bool serveStale, List<DnsResourceRecord> additionalRecords)
private void ResolveAdditionalRecords(DnsResourceRecord refRecord, string domain, bool serveStale, List<DnsResourceRecord> additionalRecords)
{
IReadOnlyList<DnsResourceRecord> glueRecords = refRecord.GetGlueRecords();
if (glueRecords.Count > 0)
{
bool added = false;
foreach (DnsResourceRecord glueRecord in glueRecords)
{
if (!glueRecord.IsStale)
{
added = true;
additionalRecords.Add(glueRecord);
}
}
if (added)
return;
}
CacheZone cacheZone = _root.FindZone(domain, out _, out _, out _);
if (cacheZone != null)
{