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https://github.com/PaperMC/Paper.git
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142 lines
8.7 KiB
Diff
142 lines
8.7 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/NetworkManager.java b/src/main/java/net/minecraft/network/NetworkManager.java
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index f86f430598026a3a7e27fb8d40cfc5fe7b9b845d..bf0c01eaf593972bbb18c22cfdb3abd658ec6498 100644
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--- a/src/main/java/net/minecraft/network/NetworkManager.java
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+++ b/src/main/java/net/minecraft/network/NetworkManager.java
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@@ -564,6 +564,11 @@ public class NetworkManager 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 04ca3ed64d8fb9bce38d715d3618ab5c73d8cbfa..1929b992be3aeaa37c7b04c458f0ee41a60c692e 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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@@ -225,6 +225,20 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
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this.i(dedicatedserverproperties.enforceWhitelist);
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// this.saveData.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.getServerIp().startsWith("unix:")) {
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+ if (!io.netty.channel.epoll.Epoll.isAvailable()) {
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+ DedicatedServer.LOGGER.fatal("**** INVALID CONFIGURATION!");
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+ DedicatedServer.LOGGER.fatal("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.fatal("**** INVALID CONFIGURATION!");
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+ DedicatedServer.LOGGER.fatal("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.getServerIp().substring("unix:".length()));
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+ } else {
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InetAddress inetaddress = null;
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if (!this.getServerIp().isEmpty()) {
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@@ -234,12 +248,15 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
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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.P();
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DedicatedServer.LOGGER.info("Starting Minecraft server on {}:{}", this.getServerIp().isEmpty() ? "*" : this.getServerIp(), this.getPort());
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try {
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- this.getServerConnection().a(inetaddress, this.getPort());
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+ this.getServerConnection().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/HandshakeListener.java b/src/main/java/net/minecraft/server/network/HandshakeListener.java
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index 74006c0af831c0e6a2b84b3638e397ab54984dc5..82540af8170f0b8cb52b13061ae8f956f1a6e46f 100644
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--- a/src/main/java/net/minecraft/server/network/HandshakeListener.java
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+++ b/src/main/java/net/minecraft/server/network/HandshakeListener.java
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@@ -44,6 +44,7 @@ public class HandshakeListener implements PacketHandshakingInListener {
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this.c.setProtocol(EnumProtocol.LOGIN);
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// CraftBukkit start - Connection throttle
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try {
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+ if (!(this.c.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.b.server.getConnectionThrottle();
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InetAddress address = ((java.net.InetSocketAddress) this.c.getSocketAddress()).getAddress();
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@@ -72,6 +73,7 @@ public class HandshakeListener implements PacketHandshakingInListener {
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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 HandshakeListener implements PacketHandshakingInListener {
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//if (org.spigotmc.SpigotConfig.bungee) { // Paper - comment out, we check above!
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String[] split = packethandshakinginsetprotocol.hostname.split("\00");
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if ( ( split.length == 3 || split.length == 4 ) && ( BYPASS_HOSTCHECK || 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 = c.getSocketAddress();
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packethandshakinginsetprotocol.hostname = split[0];
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- c.socketAddress = new java.net.InetSocketAddress(split[1], ((java.net.InetSocketAddress) c.getSocketAddress()).getPort());
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+ c.socketAddress = 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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c.spoofedUUID = com.mojang.util.UUIDTypeAdapter.fromString( split[2] );
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} else
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{
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diff --git a/src/main/java/net/minecraft/server/network/ServerConnection.java b/src/main/java/net/minecraft/server/network/ServerConnection.java
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index 69fc2789df88344587b6052f93661ed38f24a503..06b0ed65905b9829564dfddd29012218af0f403d 100644
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--- a/src/main/java/net/minecraft/server/network/ServerConnection.java
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+++ b/src/main/java/net/minecraft/server/network/ServerConnection.java
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@@ -70,7 +70,12 @@ public class ServerConnection {
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this.c = true;
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}
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+ // Paper start
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public void a(@Nullable InetAddress inetaddress, int i) throws IOException {
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+ bind(new java.net.InetSocketAddress(inetaddress, i));
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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.listeningChannels;
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synchronized (this.listeningChannels) {
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@@ -78,7 +83,11 @@ public class ServerConnection {
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LazyInitVar lazyinitvar;
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if (Epoll.isAvailable() && this.e.l()) {
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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 = ServerConnection.b;
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ServerConnection.LOGGER.info("Using epoll channel type");
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} else {
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@@ -106,7 +115,7 @@ public class ServerConnection {
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((NetworkManager) object).setPacketListener(new HandshakeListener(ServerConnection.this.e, (NetworkManager) object));
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io.papermc.paper.network.ChannelInitializeListenerHolder.callListeners(channel); // Paper
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}
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- }).group((EventLoopGroup) lazyinitvar.a()).localAddress(inetaddress, i)).option(ChannelOption.AUTO_READ, false).bind().syncUninterruptibly()); // CraftBukkit
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+ }).group((EventLoopGroup) lazyinitvar.a()).localAddress(address)).option(ChannelOption.AUTO_READ, false).bind().syncUninterruptibly()); // CraftBukkit // Paper
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}
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}
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