Implement SOA record

TinyDNS/Enums/DNSRecordType.cs

@@ -26,6 +26,8 @@ public enum DNSRecordType : ushort
         AAAA = 0x1C,
         SRV = 0x21,
         DNAME = 0x27,
+        SVCB = 0x40,
+        HTTPS = 0x41,
         ANY = 0xFF,
     }
 }

TinyDNS/Records/ResourceRecord.cs

@@ -61,6 +61,9 @@ public static ResourceRecord Parse(Span<byte> buffer, ref int pos)
                 case DNSRecordType.NS:
                     record = new NSRecord(header, buffer, ref pos);
                     break;
+                case DNSRecordType.SOA:
+                    record = new SOARecord(header, buffer, ref pos);
+                    break;
                 default:
                     record = new UnsupportedRecord(header, buffer, ref pos);
                     break;

TinyDNS/Records/SOARecord.cs

@@ -0,0 +1,61 @@
+// TinyDNS Copyright (C) 2024 
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or any later version.
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY, without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU Affero General Public License for more details.
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+using System.Buffers.Binary;
+using TinyDNS.Enums;
+
+namespace TinyDNS.Records
+{
+    public class SOARecord : ResourceRecord
+    {
+        public List<string> MNameLabels { get; }
+        public List<string> RNameLabels { get; }
+        public Version Serial { get; set; }
+        public TimeSpan Refresh { get; set; }
+        public TimeSpan Retry { get; set; }
+        public TimeSpan Expire { get; set; }
+        public TimeSpan Minimum { get; set; }
+        public string MName { get { return string.Join('.', MNameLabels); } }
+
+        internal SOARecord(ResourceRecordHeader header, Span<byte> buffer, ref int pos) : base(header)
+        {
+            pos += 2;
+            MNameLabels = DomainParser.Read(buffer, ref pos);
+            RNameLabels = DomainParser.Read(buffer, ref pos);
+            Serial = new Version((int)BinaryPrimitives.ReadUInt32BigEndian(buffer.Slice(pos, 4)), 0);
+            pos += 4;
+            Refresh = TimeSpan.FromSeconds(BinaryPrimitives.ReadInt32BigEndian(buffer.Slice(pos, 4)));
+            pos += 4;
+            Retry = TimeSpan.FromSeconds(BinaryPrimitives.ReadInt32BigEndian(buffer.Slice(pos, 4)));
+            pos += 4;
+            Expire = TimeSpan.FromSeconds(BinaryPrimitives.ReadInt32BigEndian(buffer.Slice(pos, 4)));
+            pos += 4;
+            Minimum = TimeSpan.FromSeconds(BinaryPrimitives.ReadUInt32BigEndian(buffer.Slice(pos, 4)));
+            pos += 4;
+        }
+
+        public SOARecord(string mname, string rname, TimeSpan minimum, List<string> labels, DNSClass @class, uint ttl) : base(labels, DNSRecordType.SOA, @class, ttl)
+        {
+            MNameLabels = DomainParser.Parse(mname);
+            RNameLabels = DomainParser.Parse(rname);
+            Minimum = minimum;
+            Serial = new Version();
+        }
+
+        public override bool Equals(ResourceRecord? other)
+        {
+            if (other is SOARecord otherSOA)
+                return base.Equals(other) && MNameLabels.SequenceEqual(otherSOA.MNameLabels) && Serial.Equals(otherSOA.Serial);
+            return false;
+        }
+    }
+}

TinyDNS/TinyDNS.csproj

@@ -5,8 +5,19 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
 	<Version>0.5</Version>
+	<PackageLicenseExpression>AGPL-3.0-or-later</PackageLicenseExpression>
+	<PackageReadmeFile>README.md</PackageReadmeFile>
+	<Authors>jdomnitz</Authors>
+	<Company>SmartHomeOS and Contributors</Company>
   </PropertyGroup>
 
+  <ItemGroup>
+    <None Include="..\README.md">
+      <Pack>True</Pack>
+      <PackagePath>\</PackagePath>
+    </None>
+  </ItemGroup>
+
   <ItemGroup>
     <Compile Update="Properties\Resources.Designer.cs">
       <DesignTime>True</DesignTime>