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c7448e5017
Upstream has released updates that appear 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: e642b9dd Minecraft 24w13a support db623d10 #3640: Bump org.apache.maven.plugins:maven-gpg-plugin from 3.2.1 to 3.2.2 61bb9f5b #3637: Bump org.projectlombok:lombok from 1.18.30 to 1.18.32 9551b453 #3639: Bump io.netty:netty-bom from 4.1.107.Final to 4.1.108.Final dc680b87 #3636: Bump org.apache.maven.plugins:maven-gpg-plugin from 3.1.0 to 3.2.1 156eda78 #3635: Bump org.apache.maven.plugins:maven-compiler-plugin 31be68af Minecraft 24w12a support ffa011c7 #3622: Revert "#3256: Allow - and . in online mode as some accounts still have these…" 22536c11 #3618: Bump org.apache.maven.plugins:maven-shade-plugin from 3.5.1 to 3.5.2 2394e204 #3629: Fix scoreboard team data reading 1b88a847 Minecraft 24w10a support
105 lines
5.1 KiB
Diff
105 lines
5.1 KiB
Diff
From 702afc4df45926f3d96841ffb908f3b85cb2d3f0 Mon Sep 17 00:00:00 2001
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From: Techcable <Techcable@techcable.net>
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Date: Thu, 19 May 2016 17:09:22 -0600
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Subject: [PATCH] Allow invalid packet ids for forge servers
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Some forge mods (COFH) use negative packet ids instead of plugin channels for 'reasons'.
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Vanilla servers still error on negative/invalid packets.
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Original issue: https://github.com/WaterfallMC/Waterfall-Old/issues/11
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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
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index d79d5e5c..250e7620 100644
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--- a/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
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+++ b/protocol/src/main/java/net/md_5/bungee/protocol/MinecraftDecoder.java
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@@ -18,6 +18,14 @@ public class MinecraftDecoder extends MessageToMessageDecoder<ByteBuf>
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private final boolean server;
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@Setter
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private int protocolVersion;
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+ @Setter
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+ private boolean supportsForge = false;
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+
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+ public MinecraftDecoder(Protocol protocol, boolean server, int protocolVersion) {
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+ this.protocol = protocol;
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+ this.server = server;
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+ this.protocolVersion = protocolVersion;
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+ }
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@Override
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protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception
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@@ -36,7 +44,7 @@ public class MinecraftDecoder extends MessageToMessageDecoder<ByteBuf>
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{
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int packetId = DefinedPacket.readVarInt( in );
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- DefinedPacket packet = prot.createPacket( packetId, protocolVersion );
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+ DefinedPacket packet = prot.createPacket( packetId, protocolVersion, supportsForge );
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if ( packet != null )
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{
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packet.read( in, protocol, prot.getDirection(), protocolVersion );
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diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java b/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java
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index cb5c30d5..a8a91955 100644
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--- a/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java
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+++ b/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java
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@@ -861,14 +861,23 @@ public enum Protocol
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return protocol;
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}
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+ public boolean hasPacket(int i, boolean supportsForge) {
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+ return supportsForge || i >= 0 && i <= MAX_PACKET_ID;
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+ }
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+
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public final DefinedPacket createPacket(int id, int version)
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+ {
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+ return createPacket(id, version, true);
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+ }
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+
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+ public final DefinedPacket createPacket(int id, int version, boolean supportsForge)
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{
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ProtocolData protocolData = getProtocolData( version );
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if ( protocolData == null )
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{
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throw new BadPacketException( "Unsupported protocol version " + version );
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}
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- if ( id > MAX_PACKET_ID || id < 0 )
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+ if ( !hasPacket(id, supportsForge) )
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{
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throw new BadPacketException( "Packet with id " + id + " outside of range" );
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}
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diff --git a/proxy/src/main/java/net/md_5/bungee/ServerConnector.java b/proxy/src/main/java/net/md_5/bungee/ServerConnector.java
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index 37f86325..1b7395ad 100644
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--- a/proxy/src/main/java/net/md_5/bungee/ServerConnector.java
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+++ b/proxy/src/main/java/net/md_5/bungee/ServerConnector.java
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@@ -234,6 +234,12 @@ public class ServerConnector extends PacketHandler
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public static void handleLogin(ProxyServer bungee, ChannelWrapper ch, UserConnection user, BungeeServerInfo target, ForgeServerHandler handshakeHandler, ServerConnection server, Login login) throws Exception
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{
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ServerConnectedEvent event = new ServerConnectedEvent( user, server );
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+
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+ if (server.isForgeServer() && user.isForgeUser()) {
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+ ((net.md_5.bungee.protocol.MinecraftDecoder) server.getCh().getHandle().pipeline().get(net.md_5.bungee.netty.PipelineUtils.PACKET_DECODER)).setSupportsForge(true);
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+ ((net.md_5.bungee.protocol.MinecraftDecoder) user.getCh().getHandle().pipeline().get(net.md_5.bungee.netty.PipelineUtils.PACKET_DECODER)).setSupportsForge(true);
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+ }
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+
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bungee.getPluginManager().callEvent( event );
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ch.write( BungeeCord.getInstance().registerChannels( user.getPendingConnection().getVersion() ) );
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diff --git a/proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java b/proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java
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index 2bf92a03..ccebe19f 100644
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--- a/proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java
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+++ b/proxy/src/main/java/net/md_5/bungee/entitymap/EntityMap.java
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@@ -342,6 +342,12 @@ public abstract class EntityMap
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int packetId = DefinedPacket.readVarInt( packet );
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int packetIdLength = packet.readerIndex() - readerIndex;
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+ if (packetId < 0 || packetId > ints.length || packetId > varints.length) { // Invalid packet id
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+ // Ignore these invalid packets for compatibility reasons
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+ packet.readerIndex( readerIndex );
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+ return;
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+ }
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+
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if ( ints[packetId] )
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{
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rewriteInt( packet, oldId, newId, readerIndex + packetIdLength );
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--
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2.44.0
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