NSEC records with parameter Types

[victorkani]

How to send answer of Record type NSEC with types TXT and SRV.

Something like this , I found this in ARSoft.Tools.Net
public NSecRecord(string name, RecordClass recordClass, int timeToLive, string nextDomainName, List types): base(name, RecordType.NSec, recordClass, timeToLive)
{
}

[richardschneider]

You can add any DNS Resource Record to ServiceProfile.Resources. Then, when the Resource Record is asked for, it will be sent.

var service = new ServiceProfile("x1", "_xservice._tcp", 5011);
service.Resources.Add(new NSecRecord { ... } );
var sd = new ServiceDiscovery();
sd.Advertise(servuce));

[richardschneider]

The NSecRecord can be created as

new NSecRecord 
{
   NextOwnerName = "...",
   TypeBitmaps = ...
}

[richardschneider]

@victorkani Does the above answers your question?

[victorkani]

How to return the following records to google discovery service ?

The following records should be returned by the server in an authoritative response:
Two NSEC records, the first for the name {friendlyName}._googlecast._tcp.local with types TXT and SRV, the second for name {friendlyName}.local with type A. Where {friendlyName}is the display name of the device

                        res.AdditionalRecords.Add(new NSECRecord()
                        {
                            Name = "victor." + service,
                            Type = DnsType.TXT,
                            NextOwnerName = "1.victor.local",

                        });

The above is the syntax for sending NSEC record information, but the Type parameter is not of array type to set both TXT and SRV.

[richardschneider]

I'm just making a change to Makaretu.Dns to make NSECRecord friendlier, see richardschneider/net-dns#17. In the current design you need to set TypesBitmap which is byte array and way unfriendly.

In the new design

new NSECRecord()
{
      Name = "victor." + service,
      Types = { DnsType.TXT, DnsType.SRV },
      NextOwnerName = "1.victor.local"
}

I'll have a release in a few hours and will ping you.

[richardschneider]

The new NSECRecord is available in release v0.12.0

Hope it helps!

[richardschneider]

@victorkani Are you ready to close this issue?