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DnsServer: fixed x-real-ip parsing issue in ProcessDoHRequest(). Fixed IXFR issue in ProcessQuery().

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This commit is contained in:
Shreyas Zare
2020-05-10 13:37:40 +05:30
parent c593db925f
commit 2c2875cdba
1 changed files with 15 additions and 13 deletions
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28
DnsServerCore/Dns/DnsServer.cs
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@@ -649,11 +649,10 @@ namespace DnsServerCore.Dns
if (usingReverseProxy)
{
string xRealIp = requestHeaders["X-Real-IP"];
if (!string.IsNullOrEmpty(xRealIp))
if (IPAddress.TryParse(xRealIp, out IPAddress address))
{
//get the real IP address of the requesting client from X-Real-IP header set in nginx proxy_pass block
remoteEP = new IPEndPoint(IPAddress.Parse(xRealIp), 0);
remoteEP = new IPEndPoint(address, 0);
}
}
@@ -944,26 +943,29 @@ namespace DnsServerCore.Dns
{
switch (request.Question[0].Type)
{
case DnsResourceRecordType.IXFR:
case DnsResourceRecordType.AXFR:
if (protocol == DnsTransportProtocol.Udp)
return new DnsDatagram(new DnsHeader(request.Header.Identifier, true, DnsOpcode.StandardQuery, false, false, request.Header.RecursionDesired, isRecursionAllowed, false, false, DnsResponseCode.FormatError, request.Header.QDCOUNT, 0, 0, 0), request.Question, null, null, null);
return ProcessZoneTransferQuery(request, remoteEP, isRecursionAllowed);
case DnsResourceRecordType.IXFR:
return ProcessZoneTransferQuery(request, remoteEP, isRecursionAllowed);
case DnsResourceRecordType.MAILB:
case DnsResourceRecordType.MAILA:
return new DnsDatagram(new DnsHeader(request.Header.Identifier, true, DnsOpcode.StandardQuery, false, false, request.Header.RecursionDesired, isRecursionAllowed, false, false, DnsResponseCode.NotImplemented, request.Header.QDCOUNT, 0, 0, 0), request.Question, null, null, null);
default:
//query authoritative zone
DnsDatagram authoritativeResponse = ProcessAuthoritativeQuery(request, isRecursionAllowed);
if ((authoritativeResponse.Header.RCODE != DnsResponseCode.Refused) || !request.Header.RecursionDesired || !isRecursionAllowed)
return authoritativeResponse;
//do recursive query
return ProcessRecursiveQuery(request);
}
//query authoritative zone
DnsDatagram authoritativeResponse = ProcessAuthoritativeQuery(request, isRecursionAllowed);
if ((authoritativeResponse.Header.RCODE != DnsResponseCode.Refused) || !request.Header.RecursionDesired || !isRecursionAllowed)
return authoritativeResponse;
//do recursive query
return ProcessRecursiveQuery(request);
}
catch (Exception ex)
{