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Try to properly check if so_reuseport is available
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parent
a24f684123
commit
b7bf24b4cf
2 changed files with 21 additions and 5 deletions
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@ -49,6 +49,7 @@ public final class Bootstraps {
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String kernelVersion;
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try {
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kernelVersion = Native.KERNEL_VERSION;
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GeyserImpl.getInstance().getLogger().debug("Kernel version: " + kernelVersion);
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} catch (Throwable e) {
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GeyserImpl.getInstance().getLogger().debug("Could not determine kernel version! " + e.getMessage());
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kernelVersion = null;
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@ -67,10 +68,22 @@ public final class Bootstraps {
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}
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@SuppressWarnings({"rawtypes, unchecked"})
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public static void setupBootstrap(AbstractBootstrap bootstrap) {
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public static boolean setupBootstrap(AbstractBootstrap bootstrap) {
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boolean success = true;
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if (REUSEPORT_AVAILABLE) {
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bootstrap.option(UnixChannelOption.SO_REUSEPORT, true);
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// Guessing whether so_reuseport is available based on kernel version is cool, but unreliable.
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Channel channel = bootstrap.register().channel();
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if (channel.config().setOption(UnixChannelOption.SO_REUSEPORT, true)) {
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bootstrap.option(UnixChannelOption.SO_REUSEPORT, true);
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} else {
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// If this occurs, we guessed wrong and reuseport is not available
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GeyserImpl.getInstance().getLogger().debug("so_reuseport is not available despite version being " + Native.KERNEL_VERSION);
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success = false;
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}
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// Now yeet that channel
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channel.close();
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}
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return success;
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}
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private static int[] fromString(String input) {
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@ -107,7 +107,7 @@ public final class GeyserServer {
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@Getter
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private final ExpiringMap<InetSocketAddress, InetSocketAddress> proxiedAddresses;
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private final int listenCount;
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private int listenCount;
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private ChannelFuture[] bootstrapFutures;
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@ -124,8 +124,11 @@ public final class GeyserServer {
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this.childGroup = TRANSPORT.eventLoopGroupFactory().apply(threadCount);
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this.bootstrap = this.createBootstrap();
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// setup SO_REUSEPORT if exists
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Bootstraps.setupBootstrap(this.bootstrap);
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// setup SO_REUSEPORT if exists - or, if the option does not actually exist, reset listen count
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// otherwise, we try to bind multiple times which wont work if so_reuseport is not valid
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if (!Bootstraps.setupBootstrap(this.bootstrap)) {
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this.listenCount = 1;
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}
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if (this.geyser.getConfig().getBedrock().isEnableProxyProtocol()) {
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this.proxiedAddresses = ExpiringMap.builder()
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