Add AntiXray layered obfuscation mode (#8799)
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Drex
GitHub
parent
0c3311c3b2
commit
0c9ace8f78
2 changed files with 42 additions and 8 deletions
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@ -14,7 +14,7 @@ public org.spigotmc.SpigotWorldConfig getString(Ljava/lang/String;Ljava/lang/Str
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public net.minecraft.world.level.NaturalSpawner SPAWNING_CATEGORIES
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diff --git a/build.gradle.kts b/build.gradle.kts
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index a2d2c817cdc1798cd30b3a852b3a495bcbe1b91b..ebf3d64afbb5679b97a7565a2f8e5490e4a38275 100644
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index 064a0c5b2a4b379ceec84652ff1e004d57419115..fc8a097b000e892630ddef00c350454a5f785281 100644
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--- a/build.gradle.kts
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+++ b/build.gradle.kts
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@@ -12,6 +12,7 @@ dependencies {
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@ -1448,7 +1448,7 @@ index 0000000000000000000000000000000000000000..1bb16fc7598cd53e822d84b69d6a9727
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+}
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diff --git a/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java b/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..2e9590c73d867c3ebb42f695df4c796a0f477452
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index 0000000000000000000000000000000000000000..4532f3a0d74feae0a1249b53e1bfbc18a8808b32
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
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@@ -0,0 +1,475 @@
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@ -4002,7 +4002,7 @@ index 0000000000000000000000000000000000000000..fdc906b106a5c6fff2675d5399650f5b
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+}
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diff --git a/src/main/java/io/papermc/paper/configuration/type/EngineMode.java b/src/main/java/io/papermc/paper/configuration/type/EngineMode.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..99e90636051fa0c770ee2eafb7f0d29c8195f9ae
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index 0000000000000000000000000000000000000000..7f8b685762f59049fde88e8d1bc10e1504916010
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/configuration/type/EngineMode.java
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@@ -0,0 +1,37 @@
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@ -4013,7 +4013,7 @@ index 0000000000000000000000000000000000000000..99e90636051fa0c770ee2eafb7f0d29c
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+
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+public enum EngineMode {
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+
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+ HIDE(1, "hide ores"), OBFUSCATE(2, "obfuscate");
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+ HIDE(1, "hide ores"), OBFUSCATE(2, "obfuscate"), OBFUSCATE_LAYER(3, "obfuscate layer");
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+
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+ public static final ScalarSerializer<EngineMode> SERIALIZER = new EngineModeSerializer();
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+
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@ -4576,7 +4576,7 @@ index 9afc0881f6891ef2696b6f2b37c0826f3beb0666..8873bf84c71c48297a360df9c99e511f
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world.serverLevelData.setDifficulty(config.difficulty);
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world.setSpawnSettings(config.spawnMonsters, config.spawnAnimals);
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diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
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index 16c38195c3e4f5550122df0d65fcce8ca3a83822..1d4f6e7fcfaaee40b06f74d250d04f7a36b6458b 100644
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index 8842ac222e0dea1afb7ba4584512147bb53ccb56..7e9381fcdaafb15b22d9f79592422b165b3e2523 100644
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--- a/src/main/java/org/bukkit/craftbukkit/Main.java
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+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
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@@ -131,6 +131,19 @@ public class Main {
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@ -199,10 +199,10 @@ index 0000000000000000000000000000000000000000..bd86dc2ad2f87969da4add06de2a629f
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+}
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diff --git a/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockControllerAntiXray.java b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockControllerAntiXray.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..4f3670b2bdb8b1b252e9f074a6af56a018a8c465
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index 0000000000000000000000000000000000000000..cab91880a08c6fdc545804911d295e0f24f4d983
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketBlockControllerAntiXray.java
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@@ -0,0 +1,636 @@
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@@ -0,0 +1,670 @@
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+package com.destroystokyo.paper.antixray;
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+
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+import io.papermc.paper.configuration.WorldConfiguration;
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@ -428,7 +428,31 @@ index 0000000000000000000000000000000000000000..4f3670b2bdb8b1b252e9f074a6af56a0
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+ bitStorageWriter.setBuffer(chunkPacketInfoAntiXray.getBuffer());
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+ int numberOfBlocks = presetBlockStateBits.length;
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+ // Keep the lambda expressions as simple as possible. They are used very frequently.
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+ IntSupplier random = numberOfBlocks == 1 ? (() -> 0) : new IntSupplier() {
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+ LayeredIntSupplier random = numberOfBlocks == 1 ? (() -> 0) : engineMode == EngineMode.OBFUSCATE_LAYER ? new LayeredIntSupplier() {
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+ // engine-mode: 3
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+ private int state;
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+ private int next;
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+
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+ {
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+ while ((state = ThreadLocalRandom.current().nextInt()) == 0) ;
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+ }
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+
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+ @Override
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+ public void nextLayer() {
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+ // https://en.wikipedia.org/wiki/Xorshift
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+ state ^= state << 13;
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+ state ^= state >>> 17;
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+ state ^= state << 5;
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+ // https://www.pcg-random.org/posts/bounded-rands.html
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+ next = (int) ((Integer.toUnsignedLong(state) * numberOfBlocks) >>> 32);
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+ }
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+
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+ @Override
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+ public int getAsInt() {
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+ return next;
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+ }
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+ } : new LayeredIntSupplier() {
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+ // engine-mode: 2
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+ private int state;
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+
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+ {
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@ -509,6 +533,7 @@ index 0000000000000000000000000000000000000000..4f3670b2bdb8b1b252e9f074a6af56a0
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+ current = next;
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+ next = nextNext;
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+ nextNext = temp;
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+ random.nextLayer();
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+ obfuscateLayer(y, bitStorageReader, bitStorageWriter, solidTemp, obfuscateTemp, presetBlockStateBitsTemp, current, next, nextNext, nearbyChunkSections, random);
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+ }
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+
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@ -534,6 +559,7 @@ index 0000000000000000000000000000000000000000..4f3670b2bdb8b1b252e9f074a6af56a0
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+ // There is nothing to read anymore
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+ bitStorageReader.setBits(0);
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+ solid[0] = true;
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+ random.nextLayer();
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+ obfuscateLayer(15, bitStorageReader, bitStorageWriter, solid, obfuscateTemp, presetBlockStateBitsTemp, current, next, nextNext, nearbyChunkSections, random);
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+ }
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+ } else {
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@ -546,6 +572,7 @@ index 0000000000000000000000000000000000000000..4f3670b2bdb8b1b252e9f074a6af56a0
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+ current = next;
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+ next = nextNext;
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+ nextNext = temp;
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+ random.nextLayer();
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+ obfuscateLayer(15, bitStorageReader, bitStorageWriter, solidTemp, obfuscateTemp, presetBlockStateBitsTemp, current, next, nextNext, nearbyChunkSections, random);
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+ }
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+
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@ -838,6 +865,13 @@ index 0000000000000000000000000000000000000000..4f3670b2bdb8b1b252e9f074a6af56a0
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+ ((ServerLevel) level).getChunkSource().blockChanged(blockPos);
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+ }
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+ }
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+
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+ @FunctionalInterface
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+ private interface LayeredIntSupplier extends IntSupplier {
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+ default void nextLayer() {
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+
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+ }
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+ }
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+}
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diff --git a/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketInfo.java b/src/main/java/com/destroystokyo/paper/antixray/ChunkPacketInfo.java
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new file mode 100644
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