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Add Velocity IP forwarding support (#1557)

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While Velocity supports BungeeCord-style IP forwarding, it is not secure. Users
have a lot of problems setting up firewalls or setting up plugins like IPWhitelist.
Further, the BungeeCord IP forwarding protocol still retains essentially its original
form, when there is brand new support for custom login plugin messages in 1.13.

Velocity's modern IP forwarding uses an HMAC-SHA256 code to ensure authenticity
of messages, is packed into a binary format that is smaller than BungeeCord's
forwarding, and is integrated into the Minecraft login process by using the 1.13
login plugin message packet.
This commit is contained in:
Andrew Steinborn
2018-10-18 20:44:59 -04:00
parent 99cd22a793
commit 344d299d69
27 changed files with 450 additions and 148 deletions
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8
Spigot-Server-Patches/Chunk-save-queue-improvements.patch
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@@ -26,7 +26,7 @@ Then finally, Sleeping will by default be removed, but due to known issues with
But if sleeps are to remain enabled, we at least lower the sleep interval so it doesn't have as much negative impact.
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index 0968852922..e485c3053b 100644
index aa920c469..4aad68a57 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -0,0 +0,0 @@ public class PaperConfig {
@@ -41,7 +41,7 @@ index 0968852922..e485c3053b 100644
+ }
}
diff --git a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
index d9608121b6..d7a6700936 100644
index d9608121b..d7a670093 100644
--- a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
+++ b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
@@ -0,0 +0,0 @@ public class ChunkCoordIntPair {
@@ -53,7 +53,7 @@ index d9608121b6..d7a6700936 100644
return a(this.x, this.z);
}
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index 43f77a3987..4a0f3989e6 100644
index 43f77a398..4a0f3989e 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -0,0 +0,0 @@ import java.util.function.Consumer;
@@ -171,7 +171,7 @@ index 43f77a3987..4a0f3989e6 100644
NBTCompressedStreamTools.a(nbttagcompound, (DataOutput) dataoutputstream);
dataoutputstream.close();
diff --git a/src/main/java/net/minecraft/server/FileIOThread.java b/src/main/java/net/minecraft/server/FileIOThread.java
index a3aba244af..97917551a4 100644
index a3aba244a..97917551a 100644
--- a/src/main/java/net/minecraft/server/FileIOThread.java
+++ b/src/main/java/net/minecraft/server/FileIOThread.java
@@ -0,0 +0,0 @@ public class FileIOThread implements Runnable {