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aa52bf9e33
Mojang made some changes to priorities in 1.17 and it seems that these changes conflict with the changes made in this patch, which in some cases appears to cause excessive rescheduling of tasks. This, however, is not confirmed as such but seems to be the behavior that we're seeing to cause this issue, if mojang has adopted the changes we suggested, then a good chunk of this patch may be unneeded, but, this needs a much better look than I'm currently able to do
142 lines
9.0 KiB
Diff
142 lines
9.0 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 bdd4f4db9849d9107b5c62d5e83b1277621f49f1..9d09ec3b127e3440bef6b248578dec109407f9ff 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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@@ -614,6 +614,11 @@ 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 9b5430bae4a863004aaa0fc41e7b75a7d5797b92..db0110120f88bc06954fa8c44b2a45f0c8229574 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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@@ -231,6 +231,20 @@ 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.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.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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@@ -240,12 +254,15 @@ 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 5baf51571398d6af626dfa6be3b2e42d6dd29059..961660f6f9e00b93252519e38b74c66c53388ed2 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 4c44f06ba18cfa2d889d0dd57fdd7eb79971c8c6..e0cd786f130e34b3401d40663e1548fc0076f74a 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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//if (org.spigotmc.SpigotConfig.bungee) { // Paper - comment out, we check above!
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String[] split = packet.hostName.split("\00");
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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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