mirror of
https://github.com/PaperMC/Paper.git
synced 2024-09-19 10:21:18 +02:00
fe53b0e76f
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 Bukkit Changes: 1d522878 PR-966: Introduce getRespawnLocation as a replacement for getBedSpawnLocation cc01b745 PR-965: Add DragonBattle#setPreviouslyKilled 28e3702f SPIGOT-6921, PR-957: Add methods to remove all enchantments on an ItemStack 8872404e PR-961: Add BlockData#copyTo 4054cc7b PR-956: Add method to get an offline player's location CraftBukkit Changes: 292ec79e0 SPIGOT-7568: Call EntityChangeBlockEvent for DecoratedPot b44bf5aa8 SPIGOT-7575: SuspiciousStewMeta creates invalid PotionEffect data 161784713 PR-1340: Centralize the conversion from and to Minecraft / Bukkit registry items even more and add a test case for them b93c5a30d PR-1338: Introduce getRespawnLocation as a replacement for getBedSpawnLocation fb973486c SPIGOT-7570: PrepareItemCraftEvent#isRepair() always returns false c9c24535e PR-1337: Add DragonBattle#setPreviouslyKilled c8b4da803 SPIGOT-6921, PR-1330: Add methods to remove all enchantments on an ItemStack 95bc1c4f5 PR-1333: Add BlockData#copyTo 36e2f9ce1 PR-1329: Add method to get an offline player's location Spigot Changes: c198da22 SPIGOT-7563: Update to latest release of bungeecord-chat
361 lines
19 KiB
Diff
361 lines
19 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Andrew Steinborn <git@steinborn.me>
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Date: Mon, 26 Jul 2021 02:15:17 -0400
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Subject: [PATCH] Use Velocity compression and cipher natives
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diff --git a/build.gradle.kts b/build.gradle.kts
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index 7c563ef33d12b227856e65392905bffa5289285a..376e8983fdfdbb6c3e5fd8ad0f6a05e655b622bf 100644
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--- a/build.gradle.kts
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+++ b/build.gradle.kts
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@@ -40,6 +40,11 @@ dependencies {
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runtimeOnly("org.xerial:sqlite-jdbc:3.42.0.1")
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runtimeOnly("com.mysql:mysql-connector-j:8.2.0")
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runtimeOnly("com.lmax:disruptor:3.4.4") // Paper
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+ // Paper start - Use Velocity cipher
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+ implementation("com.velocitypowered:velocity-native:3.1.2-SNAPSHOT") {
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+ isTransitive = false
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+ }
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+ // Paper end - Use Velocity cipher
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runtimeOnly("org.apache.maven:maven-resolver-provider:3.9.6")
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runtimeOnly("org.apache.maven.resolver:maven-resolver-connector-basic:1.9.18")
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diff --git a/src/main/java/net/minecraft/network/CipherDecoder.java b/src/main/java/net/minecraft/network/CipherDecoder.java
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index 778beb445eac5769b9e4e07b4d1294c50ae2602b..7b895b6a626da6297f07582e96d98ecfb6c8c951 100644
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--- a/src/main/java/net/minecraft/network/CipherDecoder.java
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+++ b/src/main/java/net/minecraft/network/CipherDecoder.java
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@@ -7,13 +7,29 @@ import java.util.List;
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import javax.crypto.Cipher;
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public class CipherDecoder extends MessageToMessageDecoder<ByteBuf> {
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- private final CipherBase cipher;
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+ private final com.velocitypowered.natives.encryption.VelocityCipher cipher; // Paper - Use Velocity cipher
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- public CipherDecoder(Cipher cipher) {
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- this.cipher = new CipherBase(cipher);
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+ public CipherDecoder(com.velocitypowered.natives.encryption.VelocityCipher cipher) { // Paper - Use Velocity cipher
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+ this.cipher = cipher; // Paper - Use Velocity cipher
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}
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protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
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- list.add(this.cipher.decipher(channelHandlerContext, byteBuf));
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+ // Paper start - Use Velocity cipher
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+ ByteBuf compatible = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), cipher, byteBuf);
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+ try {
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+ cipher.process(compatible);
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+ list.add(compatible);
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+ } catch (Exception e) {
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+ compatible.release(); // compatible will never be used if we throw an exception
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+ throw e;
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+ }
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+ // Paper end - Use Velocity cipher
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}
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+
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+ // Paper start - Use Velocity cipher
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+ @Override
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+ public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
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+ cipher.close();
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+ }
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+ // Paper end - Use Velocity cipher
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}
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diff --git a/src/main/java/net/minecraft/network/CipherEncoder.java b/src/main/java/net/minecraft/network/CipherEncoder.java
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index 0f3d502a9680006bcdcd7d272240a2e5c3b46790..ffa1c48585fbbc1d30826d435043527f6183a3ee 100644
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--- a/src/main/java/net/minecraft/network/CipherEncoder.java
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+++ b/src/main/java/net/minecraft/network/CipherEncoder.java
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@@ -4,15 +4,32 @@ import io.netty.buffer.ByteBuf;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.MessageToByteEncoder;
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import javax.crypto.Cipher;
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+import java.util.List;
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-public class CipherEncoder extends MessageToByteEncoder<ByteBuf> {
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- private final CipherBase cipher;
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+public class CipherEncoder extends io.netty.handler.codec.MessageToMessageEncoder<ByteBuf> { // Paper - Use Velocity cipher; change superclass
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+ private final com.velocitypowered.natives.encryption.VelocityCipher cipher; // Paper - Use Velocity cipher
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- public CipherEncoder(Cipher cipher) {
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- this.cipher = new CipherBase(cipher);
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+ public CipherEncoder(com.velocitypowered.natives.encryption.VelocityCipher cipher) { // Paper - Use Velocity cipher
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+ this.cipher = cipher; // Paper - Use Velocity cipher
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}
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- protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) throws Exception {
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- this.cipher.encipher(byteBuf, byteBuf2);
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+ protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
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+ // Paper start - Use Velocity cipher
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+ ByteBuf compatible = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), cipher, byteBuf);
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+ try {
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+ cipher.process(compatible);
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+ list.add(compatible);
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+ } catch (Exception e) {
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+ compatible.release(); // compatible will never be used if we throw an exception
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+ throw e;
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+ }
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+ // Paper end - Use Velocity cipher
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}
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+
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+ // Paper start - Use Velocity cipher
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+ @Override
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+ public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
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+ cipher.close();
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+ }
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+ // Paper end - Use Velocity cipher
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}
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diff --git a/src/main/java/net/minecraft/network/CompressionDecoder.java b/src/main/java/net/minecraft/network/CompressionDecoder.java
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index 2758c257cb4e2b0497bd9243c635f8fe3dbc414c..2763052eb2d5b8eb432022ab00a417976f4b2927 100644
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--- a/src/main/java/net/minecraft/network/CompressionDecoder.java
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+++ b/src/main/java/net/minecraft/network/CompressionDecoder.java
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@@ -13,13 +13,20 @@ public class CompressionDecoder extends ByteToMessageDecoder {
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public static final int MAXIMUM_COMPRESSED_LENGTH = 2097152;
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public static final int MAXIMUM_UNCOMPRESSED_LENGTH = 8388608;
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private final Inflater inflater;
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+ private final com.velocitypowered.natives.compression.VelocityCompressor compressor; // Paper - Use Velocity cipher
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private int threshold;
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private boolean validateDecompressed;
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+ // Paper start - Use Velocity cipher
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public CompressionDecoder(int compressionThreshold, boolean rejectsBadPackets) {
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+ this(null, compressionThreshold, rejectsBadPackets);
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+ }
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+ public CompressionDecoder(com.velocitypowered.natives.compression.VelocityCompressor compressor, int compressionThreshold, boolean rejectsBadPackets) {
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this.threshold = compressionThreshold;
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this.validateDecompressed = rejectsBadPackets;
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- this.inflater = new Inflater();
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+ this.inflater = compressor == null ? new Inflater() : null;
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+ this.compressor = compressor;
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+ // Paper end - Use Velocity cipher
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}
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protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
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@@ -38,14 +45,42 @@ public class CompressionDecoder extends ByteToMessageDecoder {
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}
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}
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+ if (inflater != null) { // Paper - Use Velocity cipher; fallback to vanilla inflater
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this.setupInflaterInput(byteBuf);
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ByteBuf byteBuf2 = this.inflate(channelHandlerContext, i);
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this.inflater.reset();
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list.add(byteBuf2);
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+ return; // Paper - Use Velocity cipher
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+ } // Paper - use velocity compression
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+
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+ // Paper start - Use Velocity cipher
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+ int claimedUncompressedSize = i; // OBFHELPER
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+ ByteBuf compatibleIn = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), this.compressor, byteBuf);
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+ ByteBuf uncompressed = com.velocitypowered.natives.util.MoreByteBufUtils.preferredBuffer(channelHandlerContext.alloc(), this.compressor, claimedUncompressedSize);
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+ try {
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+ this.compressor.inflate(compatibleIn, uncompressed, claimedUncompressedSize);
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+ list.add(uncompressed);
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+ byteBuf.clear();
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+ } catch (Exception e) {
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+ uncompressed.release();
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+ throw e;
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+ } finally {
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+ compatibleIn.release();
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+ }
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+ // Paper end - Use Velocity cipher
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}
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}
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}
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+ // Paper start - Use Velocity cipher
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+ @Override
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+ public void handlerRemoved0(ChannelHandlerContext ctx) throws Exception {
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+ if (this.compressor != null) {
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+ this.compressor.close();
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+ }
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+ }
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+ // Paper end - Use Velocity cipher
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+
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private void setupInflaterInput(ByteBuf buf) {
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ByteBuffer byteBuffer;
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if (buf.nioBufferCount() > 0) {
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diff --git a/src/main/java/net/minecraft/network/CompressionEncoder.java b/src/main/java/net/minecraft/network/CompressionEncoder.java
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index 859af8c845bae9781a62fa4acae56c6e2d449e10..f67f59f287d9a5cdd685b6b56ed1daf3f091e099 100644
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--- a/src/main/java/net/minecraft/network/CompressionEncoder.java
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+++ b/src/main/java/net/minecraft/network/CompressionEncoder.java
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@@ -6,21 +6,36 @@ import io.netty.handler.codec.MessageToByteEncoder;
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import java.util.zip.Deflater;
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public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
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- private final byte[] encodeBuf = new byte[8192];
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+ private final byte[] encodeBuf; // Paper - Use Velocity cipher
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private final Deflater deflater;
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+ private final com.velocitypowered.natives.compression.VelocityCompressor compressor; // Paper - Use Velocity cipher
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private int threshold;
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+ // Paper start - Use Velocity cipher
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public CompressionEncoder(int compressionThreshold) {
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+ this(null, compressionThreshold);
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+ }
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+ public CompressionEncoder(com.velocitypowered.natives.compression.VelocityCompressor compressor, int compressionThreshold) {
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this.threshold = compressionThreshold;
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- this.deflater = new Deflater();
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+ if (compressor == null) {
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+ this.encodeBuf = new byte[8192];
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+ this.deflater = new Deflater();
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+ } else {
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+ this.encodeBuf = null;
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+ this.deflater = null;
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+ }
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+ this.compressor = compressor;
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+ // Paper end - Use Velocity cipher
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}
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- protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) {
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+ protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) throws Exception { // Paper - Use Velocity cipher
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int i = byteBuf.readableBytes();
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if (i < this.threshold) {
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VarInt.write(byteBuf2, 0);
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byteBuf2.writeBytes(byteBuf);
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} else {
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+ // Paper start - Use Velocity cipher
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+ if (this.deflater != null) {
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byte[] bs = new byte[i];
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byteBuf.readBytes(bs);
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VarInt.write(byteBuf2, bs.length);
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@@ -33,10 +48,48 @@ public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
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}
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this.deflater.reset();
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+ return;
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+ }
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+
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+ VarInt.write(byteBuf2, i);
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+ ByteBuf compatibleIn = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), this.compressor, byteBuf);
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+ try {
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+ this.compressor.deflate(compatibleIn, byteBuf2);
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+ } finally {
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+ compatibleIn.release();
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+ }
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+ // Paper end - Use Velocity cipher
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}
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}
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+ // Paper start - Use Velocity cipher
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+ @Override
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+ protected ByteBuf allocateBuffer(ChannelHandlerContext ctx, ByteBuf msg, boolean preferDirect) throws Exception{
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+ if (this.compressor != null) {
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+ // We allocate bytes to be compressed plus 1 byte. This covers two cases:
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+ //
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+ // - Compression
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+ // According to https://github.com/ebiggers/libdeflate/blob/master/libdeflate.h#L103,
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+ // if the data compresses well (and we do not have some pathological case) then the maximum
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+ // size the compressed size will ever be is the input size minus one.
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+ // - Uncompressed
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+ // This is fairly obvious - we will then have one more than the uncompressed size.
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+ int initialBufferSize = msg.readableBytes() + 1;
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+ return com.velocitypowered.natives.util.MoreByteBufUtils.preferredBuffer(ctx.alloc(), this.compressor, initialBufferSize);
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+ }
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+
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+ return super.allocateBuffer(ctx, msg, preferDirect);
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+ }
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+
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+ @Override
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+ public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
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+ if (this.compressor != null) {
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+ this.compressor.close();
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+ }
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+ }
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+ // Paper end - Use Velocity cipher
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+
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public int getThreshold() {
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return this.threshold;
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}
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diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
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index a0434b92615c10a319eb4528808a83d01df2c516..3a4d03a936bbbbb54cb3d63b57ad9c3490f98c83 100644
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--- a/src/main/java/net/minecraft/network/Connection.java
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+++ b/src/main/java/net/minecraft/network/Connection.java
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@@ -734,11 +734,28 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
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return networkmanager;
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}
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- public void setEncryptionKey(Cipher decryptionCipher, Cipher encryptionCipher) {
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- this.encrypted = true;
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- this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryptionCipher));
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- this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryptionCipher));
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+ // Paper start - Use Velocity cipher
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+// public void setEncryptionKey(Cipher decryptionCipher, Cipher encryptionCipher) {
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+// this.encrypted = true;
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+// this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryptionCipher));
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+// this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryptionCipher));
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+// }
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+
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+ public void setupEncryption(javax.crypto.SecretKey key) throws net.minecraft.util.CryptException {
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+ if (!this.encrypted) {
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+ try {
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+ com.velocitypowered.natives.encryption.VelocityCipher decryption = com.velocitypowered.natives.util.Natives.cipher.get().forDecryption(key);
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+ com.velocitypowered.natives.encryption.VelocityCipher encryption = com.velocitypowered.natives.util.Natives.cipher.get().forEncryption(key);
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+
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+ this.encrypted = true;
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+ this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryption));
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+ this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryption));
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+ } catch (java.security.GeneralSecurityException e) {
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+ throw new net.minecraft.util.CryptException(e);
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+ }
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+ }
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}
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+ // Paper end - Use Velocity cipher
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public boolean isEncrypted() {
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return this.encrypted;
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@@ -771,16 +788,17 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
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public void setupCompression(int compressionThreshold, boolean rejectsBadPackets) {
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if (compressionThreshold >= 0) {
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+ com.velocitypowered.natives.compression.VelocityCompressor compressor = com.velocitypowered.natives.util.Natives.compress.get().create(io.papermc.paper.configuration.GlobalConfiguration.get().misc.compressionLevel.or(-1)); // Paper - Use Velocity cipher
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if (this.channel.pipeline().get("decompress") instanceof CompressionDecoder) {
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((CompressionDecoder) this.channel.pipeline().get("decompress")).setThreshold(compressionThreshold, rejectsBadPackets);
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} else {
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- this.channel.pipeline().addBefore("decoder", "decompress", new CompressionDecoder(compressionThreshold, rejectsBadPackets));
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+ this.channel.pipeline().addBefore("decoder", "decompress", new CompressionDecoder(compressor, compressionThreshold, rejectsBadPackets)); // Paper - Use Velocity cipher
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}
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if (this.channel.pipeline().get("compress") instanceof CompressionEncoder) {
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((CompressionEncoder) this.channel.pipeline().get("compress")).setThreshold(compressionThreshold);
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} else {
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- this.channel.pipeline().addBefore("encoder", "compress", new CompressionEncoder(compressionThreshold));
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+ this.channel.pipeline().addBefore("encoder", "compress", new CompressionEncoder(compressor, compressionThreshold)); // Paper - Use Velocity cipher
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}
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this.channel.pipeline().fireUserEventTriggered(io.papermc.paper.network.ConnectionEvent.COMPRESSION_THRESHOLD_SET); // Paper - Add Channel initialization listeners
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} else {
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diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
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index a4a29a7ea0035ecf4c61ee8547a9eb24acb667d0..586521a2cbb1d4dcfb912029f65e4363ec7674a7 100644
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--- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
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+++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
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@@ -106,6 +106,11 @@ public class ServerConnectionListener {
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ServerConnectionListener.LOGGER.info("Using default channel type");
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}
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+ // Paper start - Use Velocity cipher
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+ ServerConnectionListener.LOGGER.info("Paper: Using " + com.velocitypowered.natives.util.Natives.compress.getLoadedVariant() + " compression from Velocity.");
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+ ServerConnectionListener.LOGGER.info("Paper: Using " + com.velocitypowered.natives.util.Natives.cipher.getLoadedVariant() + " cipher from Velocity.");
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+ // Paper end - Use Velocity cipher
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+
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this.channels.add(((ServerBootstrap) ((ServerBootstrap) (new ServerBootstrap()).channel(oclass)).childHandler(new ChannelInitializer<Channel>() {
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protected void initChannel(Channel channel) {
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Connection.setInitialProtocolAttributes(channel);
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diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
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index 42ae62bdbe11fdfbacebf621d64e7c4985bbd1c7..f92d240e2984b0b49d09662ff33f5c524605ed47 100644
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--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
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@@ -235,12 +235,14 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
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}
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SecretKey secretkey = packet.getSecretKey(privatekey);
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- Cipher cipher = Crypt.getCipher(2, secretkey);
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- Cipher cipher1 = Crypt.getCipher(1, secretkey);
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+ // Paper start - Use Velocity cipher
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+// Cipher cipher = Crypt.getCipher(2, secretkey);
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+// Cipher cipher1 = Crypt.getCipher(1, secretkey);
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+ // Paper end - Use Velocity cipher
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s = (new BigInteger(Crypt.digestData("", this.server.getKeyPair().getPublic(), secretkey))).toString(16);
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this.state = ServerLoginPacketListenerImpl.State.AUTHENTICATING;
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- this.connection.setEncryptionKey(cipher, cipher1);
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+ this.connection.setupEncryption(secretkey); // Paper - Use Velocity cipher
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} catch (CryptException cryptographyexception) {
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throw new IllegalStateException("Protocol error", cryptographyexception);
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}
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