geforkt von Mirrors/Paper
89d51d5f29
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable. It should be noted that this decision does not promise all future exploits will be configurable.
65 Zeilen
3.6 KiB
Diff
65 Zeilen
3.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 6 May 2020 05:00:57 -0400
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Subject: [PATCH] Handle Oversized block entities in chunks
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Splits out Extra Packets if too many TE's are encountered to prevent
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creating too large of a packet to sed.
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Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>
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diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
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index 74b5cec09d953a247bc5aba3c4232a4c28ea1046..998deae645b4497c3285bfba3260c636439f9ecf 100644
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--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
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+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
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@@ -24,6 +24,14 @@ public class ClientboundLevelChunkPacketData {
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private final CompoundTag heightmaps;
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private final byte[] buffer;
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private final List<ClientboundLevelChunkPacketData.BlockEntityInfo> blockEntitiesData;
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+ // Paper start - Handle oversized block entities in chunks
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+ private final java.util.List<net.minecraft.network.protocol.Packet<?>> extraPackets = new java.util.ArrayList<>();
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+ private static final int TE_LIMIT = Integer.getInteger("Paper.excessiveTELimit", 750);
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+
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+ public List<net.minecraft.network.protocol.Packet<?>> getExtraPackets() {
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+ return this.extraPackets;
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+ }
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+ // Paper end - Handle oversized block entities in chunks
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// Paper start - Anti-Xray - Add chunk packet info
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@Deprecated @io.papermc.paper.annotation.DoNotUse public ClientboundLevelChunkPacketData(LevelChunk chunk) { this(chunk, null); }
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@@ -47,8 +55,18 @@ public class ClientboundLevelChunkPacketData {
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extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), chunk, chunkPacketInfo);
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// Paper end
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this.blockEntitiesData = Lists.newArrayList();
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+ int totalTileEntities = 0; // Paper - Handle oversized block entities in chunks
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for(Map.Entry<BlockPos, BlockEntity> entry2 : chunk.getBlockEntities().entrySet()) {
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+ // Paper start - Handle oversized block entities in chunks
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+ if (++totalTileEntities > TE_LIMIT) {
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+ var packet = entry2.getValue().getUpdatePacket();
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+ if (packet != null) {
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+ this.extraPackets.add(packet);
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+ continue;
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+ }
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+ }
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+ // Paper end - Handle oversized block entities in chunks
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this.blockEntitiesData.add(ClientboundLevelChunkPacketData.BlockEntityInfo.create(entry2.getValue()));
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}
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diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
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index 6412dff5ed0505f62dd5b71ab9606257858a7317..fc230d835f9aa526a4b179d36d921f0fec348aa8 100644
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--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
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+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
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@@ -74,4 +74,11 @@ public class ClientboundLevelChunkWithLightPacket implements Packet<ClientGamePa
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public ClientboundLightUpdatePacketData getLightData() {
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return this.lightData;
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}
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+
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+ // Paper start - Handle oversized block entities in chunks
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+ @Override
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+ public java.util.List<Packet<?>> getExtraPackets() {
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+ return this.chunkData.getExtraPackets();
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+ }
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+ // Paper end - Handle oversized block entities in chunks
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}
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