Waterfall/BungeeCord-Patches/0045-Ignore-empty-packets.patch
Shane Freeder 337ca7f887
Updated Upstream (BungeeCord)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

BungeeCord Changes:
70038c91 Revert "#2714: Remove unnecessary throws in ServerConnector"
39ef20b2 #2716: Don't attempt to send kick packet during handshake phase
74a6aa32 #2714: Remove unnecessary throws in ServerConnector
c7984070 Misc dependency update
2019-12-05 11:53:03 +00:00

43 lines
1.9 KiB
Diff

From bd5e179c3c66f82c335e431905b5a19b47353b3b Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Fri, 12 Oct 2018 14:28:52 +0100
Subject: [PATCH] Ignore empty packets
This patch puts the proxy more inline with the client in that empty
packets will be ignored. While empty packets are a sign of bad plugins,
they are effectivly harmless vs the cost of the exception in general
diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java b/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
index 9e9ea49c..71ddf022 100644
--- a/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
+++ b/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
@@ -36,6 +36,12 @@ public class MinecraftDecoder extends MessageToMessageDecoder<ByteBuf>
Object packetTypeInfo = null;
try
{
+ // Waterfall start
+ if (in.readableBytes() == 0) {
+ return;
+ }
+ // Waterfall end
+
int packetId = DefinedPacket.readVarInt( in );
packetTypeInfo = packetId;
diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java b/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
index e903fd09..25ee2027 100644
--- a/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
+++ b/protocol/src/main/java/net/md_5/bungee/protocol/Varint21FrameDecoder.java
@@ -30,7 +30,7 @@ public class Varint21FrameDecoder extends ByteToMessageDecoder
if ( buf[i] >= 0 )
{
int length = DefinedPacket.readVarInt( Unpooled.wrappedBuffer( buf ) );
- if ( length == 0 )
+ if ( false && length == 0) // Waterfall - ignore
{
throw new CorruptedFrameException( "Empty Packet!" );
}
--
2.24.0