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01a13871de
Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
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 13213bbc9ca5ca20c3eb8a6744dc3204c8c1e423..2f38d04b369b345c89f85cee32081df8baf4239f 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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@@ -670,6 +670,11 @@ 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 3e600ee2d5370c2ad9c445af15f350dee21248c1..6b40e5659923d74438efaeb846732cb4efbf3f1b 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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@@ -224,6 +224,20 @@ 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 (!io.papermc.paper.configuration.GlobalConfiguration.get().proxies.velocity.enabled && !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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@@ -233,12 +247,15 @@ 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 83af90fb0dcb4b1a5a68f655cf66d101b472e8e7..b80aedd2002959b4026c27ce76b3ed17f0acfb5b 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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@@ -80,7 +80,12 @@ 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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@@ -88,7 +93,11 @@ 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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@@ -116,7 +125,7 @@ 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 53833fdd748098b662d4420a254401c0d3982e56..b02cbf6bcc57167a1373925f652950e0212dfa4f 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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@@ -43,6 +43,7 @@ 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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@@ -71,6 +72,7 @@ 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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@@ -119,8 +121,11 @@ 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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