From 990d6094238580be2e0f4c8dbdadc1acdea5ca02 Mon Sep 17 00:00:00 2001
From: Shreyas Zare <ShreyasZare@users.noreply.github.com>
Date: Thu, 4 Jan 2024 15:46:44 +0530
Subject: [PATCH 1/2] Update README.md

added macarne as sponsor
---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 1cc38f6e..d67ea2cd 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,7 @@ Be it a home network or an organization's network, having a locally running DNS
 # Sponsored By
 <p align="center">
 	<a href="https://althatech.com/" target="_blank"><img src="https://technitium.com/img/logo-althatech.png" width="250" alt="Altha Technology - Censorship Resistant Data Services" title="Altha Technology - Censorship Resistant Data Services" /></a>
+	<a href="https://macarne.com/" target="_blank"><img src="https://technitium.com/img/logo-macarne.png" width="250" alt="Macarne - Worldwide Bare Metal Solutions" title="Macarne - Worldwide Bare Metal Solutions" /></a>
 </p>
 
 # Features

From d962a84b7fc4867556bfd909c3e26d001fca83ec Mon Sep 17 00:00:00 2001
From: Alexander Horner <33007665+alexhorner@users.noreply.github.com>
Date: Wed, 10 Jan 2024 19:44:11 +0000
Subject: [PATCH 2/2] Fix AAA responses not being produced when there are no
 DNS64 exclusions

---
 Apps/Dns64App/App.cs | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/Apps/Dns64App/App.cs b/Apps/Dns64App/App.cs
index 8d2b0dae..d9851244 100644
--- a/Apps/Dns64App/App.cs
+++ b/Apps/Dns64App/App.cs
@@ -20,6 +20,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 using DnsServerCore.ApplicationCommon;
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Net;
 using System.Net.Sockets;
 using System.Text.Json;
@@ -123,22 +124,34 @@ namespace Dns64
             List<DnsResourceRecord> newAnswer = new List<DnsResourceRecord>(response.Answer.Count);
 
             bool synthesizeAAAA = true;
+            bool anyExclusions = group.ExcludedIpv6.Any();
 
             foreach (DnsResourceRecord answer in response.Answer)
             {
+                //If this isn't an AAAA, include it in the new answer as we don't need to mess with it
                 if (answer.Type != DnsResourceRecordType.AAAA)
                 {
                     newAnswer.Add(answer);
                     continue;
                 }
-
+                
+                //If there aren't any exclusions, and we have an AAAA already, we can just accept that AAAA and not synthesize anything
+                if (answer.Type == DnsResourceRecordType.AAAA && !anyExclusions)
+                {
+                    newAnswer.Add(answer);
+                    synthesizeAAAA = false;
+                    continue;
+                }
+                
+                //At this point, we have an AAAA and we have at least one exclusion. We need to check the AAAA against the exclusion list
+                
                 IPAddress ipv6Address = (answer.RDATA as DnsAAAARecordData).Address;
 
                 foreach (NetworkAddress excludedIpv6 in group.ExcludedIpv6)
                 {
                     if (!excludedIpv6.Contains(ipv6Address))
                     {
-                        //found non-excluded AAAA record so no need to synthesize AAAA
+                        //This AAAA is not excluded and so we can just accept it and not synthesize anything
                         newAnswer.Add(answer);
                         synthesizeAAAA = false;
                     }