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https://github.com/PaperMC/Paper.git
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141 lines
9 KiB
Diff
141 lines
9 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: Tue, 11 May 2021 17:39:22 -0400
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Subject: [PATCH] Add Unix domain socket support
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For Windows and ARM support, JEP-380 is required:
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https://inside.java/2021/02/03/jep380-unix-domain-sockets-channels/
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This will be possible as of the Minecraft 1.17 Java version bump.
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Tested-by: Mariell Hoversholm <proximyst@proximyst.com>
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Reviewed-by: Mariell Hoversholm <proximyst@proximyst.com>
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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 932b494ea2a5e849b233c73bd2472d5c85f5ba52..8536dd544876e245a611379a7ed1446b0ed06eac 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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@@ -626,6 +626,11 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
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// Spigot Start
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public SocketAddress getRawAddress()
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{
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+ // Paper start - this can be nullable in the case of a Unix domain socket, so if it is, fake something
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+ if (this.channel.remoteAddress() == null) {
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+ return new java.net.InetSocketAddress(java.net.InetAddress.getLoopbackAddress(), 0);
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+ }
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+ // Paper end
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return this.channel.remoteAddress();
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}
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// Spigot End
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diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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index fa6adf12e8272c90c3376bc93350dc57eb1cd461..939745227346e6d23e50f942eb48ab97c4ab6190 100644
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--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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@@ -234,6 +234,20 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
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this.setEnforceWhitelist(dedicatedserverproperties.enforceWhitelist);
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// this.worldData.setGameType(dedicatedserverproperties.gamemode); // CraftBukkit - moved to world loading
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DedicatedServer.LOGGER.info("Default game type: {}", dedicatedserverproperties.gamemode);
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+ // Paper start - Unix domain socket support
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+ java.net.SocketAddress bindAddress;
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+ if (this.getLocalIp().startsWith("unix:")) {
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+ if (!io.netty.channel.epoll.Epoll.isAvailable()) {
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+ DedicatedServer.LOGGER.error("**** INVALID CONFIGURATION!");
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+ DedicatedServer.LOGGER.error("You are trying to use a Unix domain socket but you're not on a supported OS.");
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+ return false;
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+ } else if (!com.destroystokyo.paper.PaperConfig.velocitySupport && !org.spigotmc.SpigotConfig.bungee) {
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+ DedicatedServer.LOGGER.error("**** INVALID CONFIGURATION!");
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+ DedicatedServer.LOGGER.error("Unix domain sockets require IPs to be forwarded from a proxy.");
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+ return false;
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+ }
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+ bindAddress = new io.netty.channel.unix.DomainSocketAddress(this.getLocalIp().substring("unix:".length()));
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+ } else {
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InetAddress inetaddress = null;
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if (!this.getLocalIp().isEmpty()) {
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@@ -243,12 +257,15 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
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if (this.getPort() < 0) {
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this.setPort(dedicatedserverproperties.serverPort);
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}
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+ bindAddress = new java.net.InetSocketAddress(inetaddress, this.getPort());
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+ }
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+ // Paper end
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this.initializeKeyPair();
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DedicatedServer.LOGGER.info("Starting Minecraft server on {}:{}", this.getLocalIp().isEmpty() ? "*" : this.getLocalIp(), this.getPort());
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try {
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- this.getConnection().startTcpServerListener(inetaddress, this.getPort());
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+ this.getConnection().bind(bindAddress); // Paper - Unix domain socket support
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} catch (IOException ioexception) {
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DedicatedServer.LOGGER.warn("**** FAILED TO BIND TO PORT!");
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DedicatedServer.LOGGER.warn("The exception was: {}", ioexception.toString());
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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 c36089ead51d2e7dc3369d5f9a1869f58ff5391c..bfa519b9335c960a5baec50b0da95d95cd5ee958 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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@@ -78,7 +78,12 @@ public class ServerConnectionListener {
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this.running = true;
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}
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+ // Paper start
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public void startTcpServerListener(@Nullable InetAddress address, int port) throws IOException {
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+ bind(new java.net.InetSocketAddress(address, port));
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+ }
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+ public void bind(java.net.SocketAddress address) throws IOException {
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+ // Paper end
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List list = this.channels;
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synchronized (this.channels) {
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@@ -86,7 +91,11 @@ public class ServerConnectionListener {
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LazyLoadedValue lazyinitvar;
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if (Epoll.isAvailable() && this.server.isEpollEnabled()) {
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+ if (address instanceof io.netty.channel.unix.DomainSocketAddress) {
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+ oclass = io.netty.channel.epoll.EpollServerDomainSocketChannel.class;
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+ } else {
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oclass = EpollServerSocketChannel.class;
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+ }
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lazyinitvar = ServerConnectionListener.SERVER_EPOLL_EVENT_GROUP;
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ServerConnectionListener.LOGGER.info("Using epoll channel type");
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} else {
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@@ -114,7 +123,7 @@ public class ServerConnectionListener {
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((Connection) object).setListener(new ServerHandshakePacketListenerImpl(ServerConnectionListener.this.server, (Connection) object));
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io.papermc.paper.network.ChannelInitializeListenerHolder.callListeners(channel); // Paper
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}
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- }).group((EventLoopGroup) lazyinitvar.get()).localAddress(address, port)).option(ChannelOption.AUTO_READ, false).bind().syncUninterruptibly()); // CraftBukkit
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+ }).group((EventLoopGroup) lazyinitvar.get()).localAddress(address)).option(ChannelOption.AUTO_READ, false).bind().syncUninterruptibly()); // CraftBukkit // Paper
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}
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}
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diff --git a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
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index b5b929a504164aefd2498cd9fad66a5c7aaf59e4..97ee159867c4800c8fdec9a5fa42f648112be186 100644
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--- a/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerHandshakePacketListenerImpl.java
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@@ -44,6 +44,7 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
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this.connection.setProtocol(ConnectionProtocol.LOGIN);
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// CraftBukkit start - Connection throttle
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try {
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+ if (!(this.connection.channel.localAddress() instanceof io.netty.channel.unix.DomainSocketAddress)) { // Paper - the connection throttle is useless when you have a Unix domain socket
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long currentTime = System.currentTimeMillis();
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long connectionThrottle = this.server.server.getConnectionThrottle();
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InetAddress address = ((java.net.InetSocketAddress) this.connection.getRemoteAddress()).getAddress();
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@@ -72,6 +73,7 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
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}
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}
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}
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+ } // Paper - add closing bracket for if check above
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} catch (Throwable t) {
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org.apache.logging.log4j.LogManager.getLogger().debug("Failed to check connection throttle", t);
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}
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@@ -120,8 +122,11 @@ public class ServerHandshakePacketListenerImpl implements ServerHandshakePacketL
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// Paper end
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// if (org.spigotmc.SpigotConfig.bungee) { // Paper - comment out, we check above!
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if ( ( split.length == 3 || split.length == 4 ) && ( ServerHandshakePacketListenerImpl.BYPASS_HOSTCHECK || ServerHandshakePacketListenerImpl.HOST_PATTERN.matcher( split[1] ).matches() ) ) { // Paper
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+ // Paper start - Unix domain socket support
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+ java.net.SocketAddress socketAddress = connection.getRemoteAddress();
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packet.hostName = split[0];
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- connection.address = new java.net.InetSocketAddress(split[1], ((java.net.InetSocketAddress) this.connection.getRemoteAddress()).getPort());
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+ connection.address = new java.net.InetSocketAddress(split[1], socketAddress instanceof java.net.InetSocketAddress ? ((java.net.InetSocketAddress) socketAddress).getPort() : 0);
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+ // Paper end
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connection.spoofedUUID = com.mojang.util.UUIDTypeAdapter.fromString( split[2] );
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} else
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{
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