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DnsServer: updated ProcessUdpRequestAsync() to add OPT to truncation response when request has OPT.

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This commit is contained in:
Shreyas Zare
2022-05-14 18:52:21 +05:30
parent e8efc412be
commit 9ea77190d3
1 changed files with 3 additions and 3 deletions
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6
DnsServerCore/Dns/DnsServer.cs
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@@ -413,14 +413,14 @@ namespace DnsServerCore.Dns
if (response.IsSigned)
{
//rfc8945 section 5.3
response = new DnsDatagram(response.Identifier, true, response.OPCODE, response.AuthoritativeAnswer, true, response.RecursionDesired, response.RecursionAvailable, response.AuthenticData, response.CheckingDisabled, DnsResponseCode.NoError, response.Question, null, null, new DnsResourceRecord[] { response.Additional[response.Additional.Count - 1] }) { Tag = DnsServerResponseType.Authoritative };
response = new DnsDatagram(response.Identifier, true, response.OPCODE, response.AuthoritativeAnswer, true, response.RecursionDesired, response.RecursionAvailable, response.AuthenticData, response.CheckingDisabled, DnsResponseCode.NoError, response.Question, null, null, new DnsResourceRecord[] { response.Additional[response.Additional.Count - 1] }, request.EDNS is null ? ushort.MinValue : _udpPayloadSize) { Tag = DnsServerResponseType.Authoritative };
}
else
{
if (response.Question[0].Type == DnsResourceRecordType.IXFR)
response = new DnsDatagram(response.Identifier, true, response.OPCODE, response.AuthoritativeAnswer, false, response.RecursionDesired, response.RecursionAvailable, response.AuthenticData, response.CheckingDisabled, response.RCODE, response.Question, new DnsResourceRecord[] { response.Answer[0] }) { Tag = DnsServerResponseType.Authoritative }; //truncate response
response = new DnsDatagram(response.Identifier, true, response.OPCODE, response.AuthoritativeAnswer, false, response.RecursionDesired, response.RecursionAvailable, response.AuthenticData, response.CheckingDisabled, response.RCODE, response.Question, new DnsResourceRecord[] { response.Answer[0] }, null, null, request.EDNS is null ? ushort.MinValue : _udpPayloadSize) { Tag = DnsServerResponseType.Authoritative }; //truncate response
else
response = new DnsDatagram(response.Identifier, true, response.OPCODE, response.AuthoritativeAnswer, true, response.RecursionDesired, response.RecursionAvailable, response.AuthenticData, response.CheckingDisabled, response.RCODE, response.Question) { Tag = DnsServerResponseType.Authoritative };
response = new DnsDatagram(response.Identifier, true, response.OPCODE, response.AuthoritativeAnswer, true, response.RecursionDesired, response.RecursionAvailable, response.AuthenticData, response.CheckingDisabled, response.RCODE, response.Question, null, null, null, request.EDNS is null ? ushort.MinValue : _udpPayloadSize) { Tag = DnsServerResponseType.Authoritative };
}
sendBufferStream.Position = 0;