Feature: Allow setting a different port in the motd (#4293)

* Allow changing the broadcasted port using a system property. This may be needed if the port Geyser runs on & the port Bedrock players connect on do not match - e.g. due to port forwarding/different routing.

* initial stab at making the broadcast port an (unsafe) config option

* Automatically set broadcast port to be the bind port unless manually overridden

* Warn about broadcast port mismatch

* Use 0 instead of -1 as indicator to broadcast the port geyser is running on
This commit is contained in:
chris 2024-01-24 22:28:03 +01:00 committed by GitHub
parent 3f577f4128
commit 61b3ffd0de
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GPG key ID: B5690EEEBB952194
7 changed files with 81 additions and 19 deletions

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@ -50,6 +50,14 @@ public interface BedrockListener {
*/
int port();
/**
* Gets the broadcast port that's sent to Bedrock clients with the motd.
* This is the port that Bedrock clients will connect with. It usually does not differ from the listening port.
*
* @return the broadcast port
*/
int broadcastPort();
/**
* Gets the primary MOTD shown to Bedrock players if a ping passthrough setting is not enabled.
* <p>

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@ -314,6 +314,22 @@ public class GeyserImpl implements GeyserApi {
}
}
String broadcastPort = System.getProperty("geyserBroadcastPort", "");
if (!broadcastPort.isEmpty()) {
int parsedPort;
try {
parsedPort = Integer.parseInt(broadcastPort);
if (parsedPort < 1 || parsedPort > 65535) {
throw new NumberFormatException("The broadcast port must be between 1 and 65535 inclusive!");
}
} catch (NumberFormatException e) {
logger.error(String.format("Invalid broadcast port: %s! Defaulting to configured port.", broadcastPort + " (" + e.getMessage() + ")"));
parsedPort = config.getBedrock().port();
}
config.getBedrock().setBroadcastPort(parsedPort);
logger.info("Broadcast port set from system property: " + parsedPort);
}
boolean floodgatePresent = bootstrap.testFloodgatePluginPresent();
if (config.getRemote().authType() == AuthType.FLOODGATE && !floodgatePresent) {
logger.severe(GeyserLocale.getLocaleStringLog("geyser.bootstrap.floodgate.not_installed") + " "

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@ -31,6 +31,7 @@ import org.geysermc.geyser.GeyserImpl;
import org.geysermc.geyser.api.util.PlatformType;
import org.geysermc.geyser.command.GeyserCommand;
import org.geysermc.geyser.command.GeyserCommandSource;
import org.geysermc.geyser.configuration.GeyserConfiguration;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.text.GeyserLocale;
import org.geysermc.geyser.util.LoopbackUtil;
@ -84,7 +85,7 @@ public class ConnectionTestCommand extends GeyserCommand {
return;
}
} else {
port = 19132;
port = geyser.getConfig().getBedrock().broadcastPort();
}
String ip = fullAddress[0];
@ -112,30 +113,41 @@ public class ConnectionTestCommand extends GeyserCommand {
return;
}
// Issue: do the ports not line up?
if (port != geyser.getConfig().getBedrock().port()) {
if (fullAddress.length == 2) {
sender.sendMessage("The port you are testing with (" + port + ") is not the same as you set in your Geyser configuration ("
+ geyser.getConfig().getBedrock().port() + ")");
sender.sendMessage("Re-run the command with the port in the config, or change the `bedrock` `port` in the config.");
if (geyser.getConfig().getBedrock().isCloneRemotePort()) {
sender.sendMessage("You have `clone-remote-port` enabled. This option ignores the `bedrock` `port` in the config, and uses the Java server port instead.");
GeyserConfiguration config = geyser.getConfig();
// Issue: do the ports not line up? We only check this if players don't override the broadcast port - if they do, they (hopefully) know what they're doing
if (config.getBedrock().broadcastPort() == config.getBedrock().port()) {
if (port != config.getBedrock().port()) {
if (fullAddress.length == 2) {
sender.sendMessage("The port you are testing with (" + port + ") is not the same as you set in your Geyser configuration ("
+ config.getBedrock().port() + ")");
sender.sendMessage("Re-run the command with the port in the config, or change the `bedrock` `port` in the config.");
if (config.getBedrock().isCloneRemotePort()) {
sender.sendMessage("You have `clone-remote-port` enabled. This option ignores the `bedrock` `port` in the config, and uses the Java server port instead.");
}
} else {
sender.sendMessage("You did not specify the port to check (add it with \":<port>\"), " +
"and the default port 19132 does not match the port in your Geyser configuration ("
+ config.getBedrock().port() + ")!");
sender.sendMessage("Re-run the command with that port, or change the port in the config under `bedrock` `port`.");
}
} else {
sender.sendMessage("You did not specify the port to check (add it with \":<port>\"), " +
"and the default port 19132 does not match the port in your Geyser configuration ("
+ geyser.getConfig().getBedrock().port() + ")!");
sender.sendMessage("Re-run the command with that port, or change the port in the config under `bedrock` `port`.");
}
} else {
if (config.getBedrock().broadcastPort() != port) {
sender.sendMessage("The port you are testing with (" + port + ") is not the same as the broadcast port set in your Geyser configuration ("
+ config.getBedrock().broadcastPort() + "). ");
sender.sendMessage("You ONLY need to change the broadcast port if clients connects with a port different from the port Geyser is running on.");
sender.sendMessage("Re-run the command with the port in the config, or change the `bedrock` `broadcast-port` in the config.");
}
}
// Issue: is the `bedrock` `address` in the config different?
if (!geyser.getConfig().getBedrock().address().equals("0.0.0.0")) {
if (!config.getBedrock().address().equals("0.0.0.0")) {
sender.sendMessage("The address specified in `bedrock` `address` is not \"0.0.0.0\" - this may cause issues unless this is deliberate and intentional.");
}
// Issue: did someone turn on enable-proxy-protocol, and they didn't mean it?
if (geyser.getConfig().getBedrock().isEnableProxyProtocol()) {
if (config.getBedrock().isEnableProxyProtocol()) {
sender.sendMessage("You have the `enable-proxy-protocol` setting enabled. " +
"Unless you're deliberately using additional software that REQUIRES this setting, you may not need it enabled.");
}
@ -166,7 +178,7 @@ public class ConnectionTestCommand extends GeyserCommand {
String connectionTestMotd = "Geyser Connection Test " + randomStr;
CONNECTION_TEST_MOTD = connectionTestMotd;
sender.sendMessage("Testing server connection now. Please wait...");
sender.sendMessage("Testing server connection to " + ip + " with port: " + port + " now. Please wait...");
JsonNode output;
try {
String hostname = URLEncoder.encode(ip, StandardCharsets.UTF_8);

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@ -122,6 +122,8 @@ public interface GeyserConfiguration {
void setPort(int port);
void setBroadcastPort(int broadcastPort);
boolean isCloneRemotePort();
int getCompressionLevel();

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@ -172,6 +172,15 @@ public abstract class GeyserJacksonConfiguration implements GeyserConfiguration
return port;
}
@Setter
@JsonProperty("broadcast-port")
private int broadcastPort = 0;
@Override
public int broadcastPort() {
return broadcastPort;
}
@Getter
@JsonProperty("clone-remote-port")
private boolean cloneRemotePort = false;

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@ -102,6 +102,11 @@ public final class GeyserServer {
private ChannelFuture bootstrapFuture;
/**
* The port to broadcast in the pong. This can be different from the port the server is bound to, e.g. due to port forwarding.
*/
private final int broadcastPort;
public GeyserServer(GeyserImpl geyser, int threadCount) {
this.geyser = geyser;
this.group = TRANSPORT.eventLoopGroupFactory().apply(threadCount);
@ -115,6 +120,13 @@ public final class GeyserServer {
} else {
this.proxiedAddresses = null;
}
// It's set to 0 only if no system property or manual config value was set
if (geyser.getConfig().getBedrock().broadcastPort() == 0) {
geyser.getConfig().getBedrock().setBroadcastPort(geyser.getConfig().getBedrock().port());
}
this.broadcastPort = geyser.getConfig().getBedrock().broadcastPort();
}
public CompletableFuture<Void> bind(InetSocketAddress address) {
@ -243,8 +255,8 @@ public final class GeyserServer {
.nintendoLimited(false)
.protocolVersion(GameProtocol.DEFAULT_BEDROCK_CODEC.getProtocolVersion())
.version(GameProtocol.DEFAULT_BEDROCK_CODEC.getMinecraftVersion()) // Required to not be empty as of 1.16.210.59. Can only contain . and numbers.
.ipv4Port(this.geyser.getConfig().getBedrock().port())
.ipv6Port(this.geyser.getConfig().getBedrock().port())
.ipv4Port(this.broadcastPort)
.ipv6Port(this.broadcastPort)
.serverId(bootstrapFuture.channel().config().getOption(RakChannelOption.RAK_GUID));
if (config.isPassthroughMotd() && pingInfo != null && pingInfo.getDescription() != null) {

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@ -30,6 +30,9 @@ bedrock:
# How much to compress network traffic to the Bedrock client. The higher the number, the more CPU usage used, but
# the smaller the bandwidth used. Does not have any effect below -1 or above 9. Set to -1 to disable.
compression-level: 6
# The port to broadcast to Bedrock clients with the MOTD that they should use to connect to the server.
# DO NOT uncomment and change this unless Geyser runs on a different internal port than the one that is used to connect.
# broadcast-port: 19132
# Whether to enable PROXY protocol or not for clients. You DO NOT WANT this feature unless you run UDP reverse proxy
# in front of your Geyser instance.
enable-proxy-protocol: false