private DnsQueryRequest ParseQuery(ref MemoryStream ms) { DnsQueryRequest queryRequest = new DnsQueryRequest(); // Read name queryRequest.Name = DnsRecordBase.ParseName(ref ms); return(queryRequest); }
private static List <DnsRecordBase> GetPowerShellRecords <T>(IList <T> mamlObjects) where T : class { var result = new List <DnsRecordBase>(); if (mamlObjects == null || mamlObjects.Count == 0) { return(result); } return(mamlObjects.Select(mamlObject => DnsRecordBase.FromMamlRecord(mamlObject)).ToList()); }
private static List <DnsRecordBase> GetPowerShellRecords(Management.Dns.Models.RecordSet recordSet) { var result = new List <DnsRecordBase>(); result.AddRange(GetPowerShellRecords(recordSet.Properties.AaaaRecords)); result.AddRange(GetPowerShellRecords(recordSet.Properties.ARecords)); result.AddRange(GetPowerShellRecords(recordSet.Properties.MxRecords)); result.AddRange(GetPowerShellRecords(recordSet.Properties.NsRecords)); result.AddRange(GetPowerShellRecords(recordSet.Properties.SrvRecords)); result.AddRange(GetPowerShellRecords(recordSet.Properties.TxtRecords)); if (recordSet.Properties.CnameRecord != null) { result.Add(DnsRecordBase.FromMamlRecord(recordSet.Properties.CnameRecord)); } if (recordSet.Properties.SoaRecord != null) { result.Add(DnsRecordBase.FromMamlRecord(recordSet.Properties.SoaRecord)); } return(result); }
private static DnsRecordBase ParseRecord(byte[] resultData, ref int currentPosition) { int startPosition = currentPosition; string name = ParseDomainName(resultData, ref currentPosition); RecordType recordType = (RecordType)ParseUShort(resultData, ref currentPosition); DnsRecordBase record = DnsRecordBase.Create(recordType, resultData, currentPosition + 6); record.StartPosition = startPosition; record.Name = name; record.RecordType = recordType; record.RecordClass = (RecordClass)ParseUShort(resultData, ref currentPosition); record.TimeToLive = ParseInt(resultData, ref currentPosition); record.RecordDataLength = ParseUShort(resultData, ref currentPosition); if (record.RecordDataLength > 0) { record.ParseRecordData(resultData, currentPosition, record.RecordDataLength); currentPosition += record.RecordDataLength; } return(record); }
/// <summary> /// Creates a new instance of the AddRecordUpdate /// </summary> /// <param name="record"> Record which should be added </param> public AddRecordUpdate(DnsRecordBase record) : base(record.Name, record.RecordType, record.RecordClass, record.TimeToLive) { Record = record; }
/// <summary> /// Creates a new instance of the DeleteRecordUpdate class /// </summary> /// <param name="record"> Record that should be deleted </param> public DeleteRecordUpdate(DnsRecordBase record) : base(record.Name, record.RecordType, RecordClass.None, 0) { Record = record; }
/// <summary> /// Creates a new instance of the RecordExistsPrequisite class /// </summary> /// <param name="record"> tecord that should be checked </param> public RecordExistsPrequisite(DnsRecordBase record) : base(record.Name, record.RecordType, record.RecordClass, 0) { Record = record; }
private static void LogMultiResolverLog(Stopwatch stopwatch, ILogger <IDnsCtx> logger, IDnsCtx dnsContext, int i, int count, DnsRecordBase dnsRecordBase) { var messageTemplate = "ClientIpAddress: {0} resolve[{1}/{2}] {3} => {4} ({5}, {6}) after [{7} ms]"; if (dnsRecordBase is CNameRecord cNameRecord) { logger.LogDebug(messageTemplate, dnsContext?.IpEndPoint, i, count, cNameRecord.Name.ToString(), cNameRecord.CanonicalName.ToString(), cNameRecord.RecordType.ToString(), cNameRecord.RecordClass.ToString(), stopwatch.ElapsedMilliseconds); } else if (dnsRecordBase is ARecord aRecord) { logger.LogDebug(messageTemplate, dnsContext?.IpEndPoint, i, count, aRecord.Name.ToString(), aRecord.Address.ToString(), aRecord.RecordType.ToString(), aRecord.RecordClass.ToString(), stopwatch.ElapsedMilliseconds); } else if (dnsRecordBase is AaaaRecord aaaaRecord) { logger.LogDebug(messageTemplate, dnsContext?.IpEndPoint, i, count, aaaaRecord.Name.ToString(), aaaaRecord.Address.ToString(), aaaaRecord.RecordType.ToString(), aaaaRecord.RecordClass.ToString(), stopwatch.ElapsedMilliseconds); } else if (dnsRecordBase is PtrRecord ptrRecord) { logger.LogDebug(messageTemplate, dnsContext?.IpEndPoint, i, count, ptrRecord.Name.ToString(), ptrRecord.PointerDomainName.ToString(), ptrRecord.RecordType.ToString(), ptrRecord.RecordClass.ToString(), stopwatch.ElapsedMilliseconds); } else if (dnsRecordBase is MxRecord mxRecord) { logger.LogDebug(messageTemplate, dnsContext?.IpEndPoint, i, count, mxRecord.Name.ToString(), mxRecord.ExchangeDomainName.ToString(), mxRecord.RecordType.ToString(), mxRecord.RecordClass.ToString(), stopwatch.ElapsedMilliseconds); } else { logger.LogDebug("ClientIpAddress: {0} resolve[{1}/{2}] {3} ({4}, {5}) after [{6} ms]", dnsContext?.IpEndPoint, i, count, dnsRecordBase.Name.ToString(), dnsRecordBase.RecordType.ToString(), dnsRecordBase.RecordClass.ToString(), stopwatch.ElapsedMilliseconds); } }
/// <summary> /// Creates a new instance of the DeleteRecordUpdate class. /// </summary> /// <param name="record">Record that should be deleted.</param> public DeleteRecordUpdate(DnsRecordBase record) : base(record.Name, record.RecordType, RecordClass.None, 0) { this.Record = record; }
} // End Class DbDnsRecord static async Task <bool> ResolveMessage(DnsMessage query, QueryReceivedEventArgs e, DnsMessage response) { DbDnsRecord rec = null; using (System.Data.Common.DbCommand cmd = s_sql.CreateCommand(@" -- DECLARE @in_recordType int -- DECLARE @in_recordName varchar(4000) -- SET @in_recordType = 1 -- A -- SET @in_recordName = 'vortex.data.microsoft.com' SELECT REC_Id --,T_Records.REC_DOM_Id ,T_Records.REC_RT_Id ,T_Records.REC_Name ,T_Records.REC_Content ,T_Records.REC_ResponsibleName ,COALESCE(T_Records.REC_TTL, 100) AS REC_TTL ,T_Records.REC_Prio ,T_Records.REC_Weight ,T_Records.REC_Port ,T_Records.REC_SerialNumber ,T_Records.REC_RefreshInterval ,T_Records.REC_RetryInterval ,T_Records.REC_ExpireInterval ,T_Records.REC_NegativeCachingTTL ,T_Records.REC_AfsSubType ,T_Records.REC_ChangeDate FROM T_Records WHERE REC_RT_Id = @in_recordType AND T_Records.REC_Name = @in_recordName ; ")) { try { string name = query.Questions[0].Name.ToString(); s_sql.AddParameter(cmd, "in_recordType", (int)query.Questions[0].RecordType); s_sql.AddParameter(cmd, "in_recordName", name); // TODO: Can return multiple records... rec = s_sql.GetClass <DbDnsRecord>(cmd); } catch (System.Exception ex) { System.Console.WriteLine(ex.Message); System.Console.WriteLine(ex.StackTrace); } } // End Using cmd if (rec != null) { int ttl = 3600; DnsRecordBase record = null; // https://blog.dnsimple.com/2015/04/common-dns-records/ // https://en.wikipedia.org/wiki/List_of_DNS_record_types switch ((RecordType)rec.REC_RT_Id) { case RecordType.Soa: // SoaRecord(DomainName name, int timeToLive, DomainName masterName // , DomainName responsibleName, uint serialNumber, int refreshInterval // , int retryInterval, int expireInterval, int negativeCachingTTL) record = new ARSoft.Tools.Net.Dns.SoaRecord( DomainName.Parse(rec.REC_Name) , rec.REC_TTL.Value , DomainName.Parse(rec.REC_Content) , DomainName.Parse(rec.REC_ResponsibleName) , rec.REC_SerialNumber.Value , rec.REC_RefreshInterval.Value , rec.REC_RetryInterval.Value , rec.REC_ExpireInterval.Value , rec.REC_NegativeCachingTTL.Value ); break; case RecordType.Ns: record = new ARSoft.Tools.Net.Dns.NsRecord(DomainName.Parse(rec.REC_Name), ttl, DomainName.Parse(rec.REC_Content)); break; case RecordType.Srv: // SrvRecord(DomainName name, int timeToLive, ushort priority, ushort weight, ushort port, DomainName target) record = new ARSoft.Tools.Net.Dns.SrvRecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, (ushort)rec.REC_Prio.Value, (ushort)rec.REC_Weight.Value, (ushort)rec.REC_Port.Value, DomainName.Parse(rec.REC_Content)); break; // https://www.openafs.org/ // https://en.wikipedia.org/wiki/OpenAFS // http://www.rjsystems.nl/en/2100-dns-discovery-openafs.php // OpenAFS is an open source implementation of the Andrew distributed file system(AFS). case RecordType.Afsdb: // http://www.rjsystems.nl/en/2100-dns-discovery-openafs.php record = new ARSoft.Tools.Net.Dns.AfsdbRecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, (AfsdbRecord.AfsSubType)(uint) rec.REC_AfsSubType.Value, DomainName.Parse(rec.REC_Content)); break; // A DNS-based Authentication of Named Entities (DANE) method // for publishing and locating OpenPGP public keys in DNS // for a specific email address using an OPENPGPKEY DNS resource record. case RecordType.OpenPGPKey: byte[] publicKey = null; // hexdump(sha256(truncate(utf8(ocalpart), 28) // https://www.huque.com/bin/openpgpkey // The OPENPGPKEY DNS record is specied in RFC 7929. // The localpart of the uid is encoded as a DNS label // containing the hexdump of the SHA-256 hash // of the utf-8 encoded localpart, truncated to 28 octets. // Normally the "Standard" output format should be used. // The "Generic Encoding" output format is provided to help work // with older DNS software that does not yet understand the OPENPGPKEY record type. record = new ARSoft.Tools.Net.Dns.OpenPGPKeyRecord(DomainName.Parse(rec.REC_Name), ttl, publicKey); break; // Canonical name records, or CNAME records, are often called alias records because they map an alias to the canonical name. When a name server finds a CNAME record, it replaces the name with the canonical name and looks up the new name. case RecordType.CName: record = new ARSoft.Tools.Net.Dns.CNameRecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, DomainName.Parse(rec.REC_Content)); break; case RecordType.Ptr: record = new ARSoft.Tools.Net.Dns.PtrRecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, DomainName.Parse(rec.REC_Content)); break; case RecordType.A: record = new ARSoft.Tools.Net.Dns.ARecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, System.Net.IPAddress.Parse(rec.REC_Content)); break; case RecordType.Aaaa: record = new ARSoft.Tools.Net.Dns.AaaaRecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, System.Net.IPAddress.Parse(rec.REC_Content)); break; case RecordType.Mx: record = new ARSoft.Tools.Net.Dns.MxRecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, 0, DomainName.Parse(rec.REC_Content)); break; case RecordType.Txt: record = new ARSoft.Tools.Net.Dns.TxtRecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, rec.REC_Content); break; case RecordType.SshFp: // https://unix.stackexchange.com/questions/121880/how-do-i-generate-sshfp-records // SshFpRecord(DomainName name, int timeToLive, SshFpAlgorithm algorithm // , SshFpFingerPrintType fingerPrintType, byte[] fingerPrint) ARSoft.Tools.Net.Dns.SshFpRecord.SshFpAlgorithm sfa = ARSoft.Tools.Net.Dns.SshFpRecord .SshFpAlgorithm.Rsa; ARSoft.Tools.Net.Dns.SshFpRecord.SshFpFingerPrintType sfp = ARSoft.Tools.Net.Dns.SshFpRecord .SshFpFingerPrintType.Sha256; byte[] fp = null; record = new ARSoft.Tools.Net.Dns.SshFpRecord(DomainName.Parse(rec.REC_Name), rec.REC_TTL.Value, sfa, sfp, fp); break; default: break; } // End Switch if (record != null) { response.AnswerRecords.Add(record); } response.ReturnCode = ReturnCode.NoError; e.Response = response; return(await Task <bool> .FromResult(true)); } // End if (rec != null) return(await Task <bool> .FromResult(false)); } // End Function ResolveMessage