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DnsServer: blocked response tagging implemented.

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This commit is contained in:
Shreyas Zare
2018-10-01 00:17:58 +05:30
parent 9c62ac9dff
commit e17d64ff17
2 changed files with 23 additions and 25 deletions
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45
DnsServerCore/StatsManager.cs
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@@ -258,38 +258,33 @@ namespace DnsServerCore
{
StatsResponseType responseType;
switch (response.Header.RCODE)
if (response.Tag == "blocked")
{
case DnsResponseCode.NoError:
if (response.Header.AuthoritativeAnswer && (response.Header.ANCOUNT == 0) && (response.Header.NSCOUNT == 1) && (response.Authority[0].Type == DnsResourceRecordType.SOA) && (response.Authority[0].RDATA as DnsSOARecord).ResponsiblePerson.StartsWith("blockmaster."))
responseType = StatsResponseType.Blocked;
else if (response.Header.AuthoritativeAnswer && (response.Header.ANCOUNT == 1) && (response.Answer[0].Type == DnsResourceRecordType.A) && (response.Answer[0].RDATA as DnsARecord).Address.Equals(IPAddress.Any))
responseType = StatsResponseType.Blocked;
else if (response.Header.AuthoritativeAnswer && (response.Header.ANCOUNT == 1) && (response.Answer[0].Type == DnsResourceRecordType.AAAA) && (response.Answer[0].RDATA as DnsAAAARecord).Address.Equals(IPAddress.IPv6Any))
responseType = StatsResponseType.Blocked;
else
responseType = StatsResponseType.Blocked;
}
else
{
switch (response.Header.RCODE)
{
case DnsResponseCode.NoError:
responseType = StatsResponseType.NoError;
break;
break;
case DnsResponseCode.ServerFailure:
responseType = StatsResponseType.ServerFailure;
break;
case DnsResponseCode.ServerFailure:
responseType = StatsResponseType.ServerFailure;
break;
case DnsResponseCode.NameError:
if (response.Header.AuthoritativeAnswer && (response.Header.ANCOUNT == 0) && (response.Header.NSCOUNT == 1) && (response.Authority[0].Type == DnsResourceRecordType.SOA) && (response.Authority[0].RDATA as DnsSOARecord).ResponsiblePerson.StartsWith("blockmaster."))
responseType = StatsResponseType.Blocked;
else
case DnsResponseCode.NameError:
responseType = StatsResponseType.NameError;
break;
break;
case DnsResponseCode.Refused:
responseType = StatsResponseType.Refused;
break;
case DnsResponseCode.Refused:
responseType = StatsResponseType.Refused;
break;
default:
return;
default:
return;
}
}
Update(response.Question[0].Name, response.Question[0].Type, responseType, clientIpAddress);