Jump to content
MaxCheaters Official Group on Discord
-> Place your ad text here <-
LINEAGE2.GOLD INTERLUDE SERVER ON ESSENCE CLIENT

[Share]Funny flood fix!?

xAddytzu

By xAddytzu
in Server Shares & Files [L2J]

 Share

Recommended Posts

`Peter Newbie

`Peter

Posted
Posted

Oh come on you are not serious. Are you gonna floodprotect the movebackwardtolocation? Players use it ALL the -beep-ing time.

 

Floodprotecting it is the most stupid thing i've ever heard.. Imo should be locked.

You are wrong..., Post a different fix.

 

@Addy, actually this seems like LAG :), so i wouldn't reccomend it. Nevertheless, you can add a different fix ( to block this packets, I am working on it ) :D

GoodT Newbie

GoodT

Posted
Posted

New working code ;)... Thx xAddytzu for idea...

 

 

Index: /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java
===================================================================
--- /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java (revision 9)
+++ /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java (revision 52)
@@ -25,4 +25,5 @@
import net.sf.l2j.gameserver.ai.CtrlIntention;
import net.sf.l2j.gameserver.model.L2CharPosition;
+import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
@@ -31,4 +32,5 @@
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;
import net.sf.l2j.gameserver.templates.L2WeaponType;
+import net.sf.l2j.gameserver.util.FloodProtector;
import net.sf.l2j.gameserver.util.IllegalPlayerAction;
import net.sf.l2j.gameserver.util.Util;
@@ -100,4 +102,8 @@
		if (activeChar == null)
			return;
+		
+		L2Object player = null;
+		if (!FloodProtector.getInstance().tryPerformAction(player.getObjectId(), FloodProtector.PROTECTED_PACKETS))
+			return;

		_curX = activeChar.getX();
Index: /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java
===================================================================
--- /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java (revision 31)
+++ /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java (revision 52)
@@ -34,4 +34,5 @@
	private static final Logger _log = Logger.getLogger(FloodProtector.class.getName());
	private static FloodProtector _instance;
+

	public static final FloodProtector getInstance()
@@ -76,6 +77,7 @@
	public static final int PROTECTED_GIVEITEMTOPET = 13;
	public static final int PROTECTED_BANKING_SYSTEM = 14;	
+	public static final int PROTECTED_PACKETS = 15;
public static final int PROTECTED_UNKNOWNPACKET = 16;
public static final int PROTECTED_BYPASS        = 17;

	// =========================================================

Belzebul Newbie

Belzebul

Posted
Posted

New working code ;)... Thx xAddytzu for idea...

 

 

Index: /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java
===================================================================
--- /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java (revision 9)
+++ /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java (revision 52)
@@ -25,4 +25,5 @@
import net.sf.l2j.gameserver.ai.CtrlIntention;
import net.sf.l2j.gameserver.model.L2CharPosition;
+import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
@@ -31,4 +32,5 @@
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;
import net.sf.l2j.gameserver.templates.L2WeaponType;
+import net.sf.l2j.gameserver.util.FloodProtector;
import net.sf.l2j.gameserver.util.IllegalPlayerAction;
import net.sf.l2j.gameserver.util.Util;
@@ -100,4 +102,8 @@
		if (activeChar == null)
			return;
+		
+		L2Object player = null;
+		if (!FloodProtector.getInstance().tryPerformAction(player.getObjectId(), FloodProtector.PROTECTED_PACKETS))
+			return;

		_curX = activeChar.getX();
Index: /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java
===================================================================
--- /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java (revision 31)
+++ /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java (revision 52)
@@ -34,4 +34,5 @@
	private static final Logger _log = Logger.getLogger(FloodProtector.class.getName());
	private static FloodProtector _instance;
+

	public static final FloodProtector getInstance()
@@ -76,6 +77,7 @@
	public static final int PROTECTED_GIVEITEMTOPET = 13;
	public static final int PROTECTED_BANKING_SYSTEM = 14;	
+	public static final int PROTECTED_PACKETS = 15;
public static final int PROTECTED_UNKNOWNPACKET = 16;
public static final int PROTECTED_BYPASS        = 17;

	// =========================================================

this will really work?

Coyote™ Newbie

Coyote™

Posted
Posted

New working code ;)... Thx xAddytzu for idea...

 

 

Index: /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java
===================================================================
--- /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java (revision 9)
+++ /trunk/L2J/java/net/sf/l2j/gameserver/network/clientpackets/MoveBackwardToLocation.java (revision 52)
@@ -25,4 +25,5 @@
import net.sf.l2j.gameserver.ai.CtrlIntention;
import net.sf.l2j.gameserver.model.L2CharPosition;
+import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
@@ -31,4 +32,5 @@
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;
import net.sf.l2j.gameserver.templates.L2WeaponType;
+import net.sf.l2j.gameserver.util.FloodProtector;
import net.sf.l2j.gameserver.util.IllegalPlayerAction;
import net.sf.l2j.gameserver.util.Util;
@@ -100,4 +102,8 @@
		if (activeChar == null)
			return;
+		
+		L2Object player = null;
+		if (!FloodProtector.getInstance().tryPerformAction(player.getObjectId(), FloodProtector.PROTECTED_PACKETS))
+			return;

		_curX = activeChar.getX();
Index: /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java
===================================================================
--- /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java (revision 31)
+++ /trunk/L2J/java/net/sf/l2j/gameserver/util/FloodProtector.java (revision 52)
@@ -34,4 +34,5 @@
	private static final Logger _log = Logger.getLogger(FloodProtector.class.getName());
	private static FloodProtector _instance;
+

	public static final FloodProtector getInstance()
@@ -76,6 +77,7 @@
	public static final int PROTECTED_GIVEITEMTOPET = 13;
	public static final int PROTECTED_BANKING_SYSTEM = 14;	
+	public static final int PROTECTED_PACKETS = 15;
public static final int PROTECTED_UNKNOWNPACKET = 16;
public static final int PROTECTED_BYPASS        = 17;

	// =========================================================

 

Still

 

Oh come on you are not serious. Are you gonna floodprotect the movebackwardtolocation? Players use it ALL the -beep-ing time.

 

Floodprotecting it is the most stupid thing i've ever heard.. Imo should be locked.

Belzebul Newbie

Belzebul

Posted
Posted

so, this fix may be useful with a config. When a cheater is trying to hack you with funny flood, you enable the protection, even it produces lag to players.

GoodT Newbie

GoodT

Posted
Posted

I have one idea, but not tested, just written...

 

Index: C:/Workspace/L2_GameServer_It/java/config/server.properties
===================================================================
--- C:/Workspace/L2_GameServer_It/java/config/server.properties	(revision 1025)
+++ C:/Workspace/L2_GameServer_It/java/config/server.properties	(working copy)
@@ -69,6 +69,16 @@
# Define how many players are allowed to play simultaneously on your server.
MaximumOnlineUsers=100

+# Activate Protection for knownPacket flooding
+MaxPacketProtection = False
+# How much known packets before punishment.
+# If the player send more than 100 knownPackets per second, the player get punished.
+KnownPacketsBeforeBan = 100
+# Punishments
+# 1 - broadcast warning to gms only
+# 2 - kick player (default)
+# 3 - kick & ban player (Accesslevel -99)
+KnownPacketsPunishment = 2

# Minimum and maximum protocol revision that server allow to connect.
# You must keep MinProtocolRevision <= MaxProtocolRevision.
Index: C:/Workspace/L2_GameServer_It/java/net/sf/l2j/Config.java
===================================================================
--- C:/Workspace/L2_GameServer_It/java/net/sf/l2j/Config.java	(revision 1025)
+++ C:/Workspace/L2_GameServer_It/java/net/sf/l2j/Config.java	(working copy)
@@ -78,6 +78,10 @@
     /** Maximum number of players allowed to play simultaneously on server */
     public static int   MAXIMUM_ONLINE_USERS;
     
+    public static boolean ENABLE_MAX_PACKET_PROTECTION;
+    public static int MAX_KNOWN_PACKETS;
+    public static int KNOWN_PACKETS_PUNiSHMENT;
+    
     // Setting for serverList
     /** Displays [] in front of server name ? */
     public static boolean SERVER_LIST_BRACKET;
@@ -1120,6 +1124,10 @@

                 MAX_CHARACTERS_NUMBER_PER_ACCOUNT = Integer.parseInt(serverSettings.getProperty("CharMaxNumber", "0"));
                 MAXIMUM_ONLINE_USERS        = Integer.parseInt(serverSettings.getProperty("MaximumOnlineUsers", "100"));
+                
+                ENABLE_MAX_PACKET_PROTECTION = Boolean.parseBoolean(serverSettings.getProperty("MaxPacketProtection", "false"));
+                MAX_KNOWN_PACKETS = Integer.parseInt(serverSettings.getProperty("KnownPacketsBeforeBan", "5"));
+                KNOWN_PACKETS_PUNiSHMENT = Integer.parseInt(serverSettings.getProperty("KnownPacketsPunishment", "2"));
                
                 MIN_PROTOCOL_REVISION   = Integer.parseInt(serverSettings.getProperty("MinProtocolRevision", "660"));
                 MAX_PROTOCOL_REVISION   = Integer.parseInt(serverSettings.getProperty("MaxProtocolRevision", "665"));
@@ -2082,6 +2090,10 @@
         else if (pName.equalsIgnoreCase("AutoDeleteInvalidQuestData")) AUTODELETE_INVALID_QUEST_DATA = Boolean.valueOf(pValue);

         else if (pName.equalsIgnoreCase("MaximumOnlineUsers")) MAXIMUM_ONLINE_USERS = Integer.parseInt(pValue);
+        
+        else if (pName.equalsIgnoreCase("MaxPacketProtection")) ENABLE_MAX_PACKET_PROTECTION = Boolean.parseBoolean(pValue);
+        else if (pName.equalsIgnoreCase("KnownPacketsBeforeBan")) MAX_KNOWN_PACKETS = Integer.parseInt(pValue);
+        else if (pName.equalsIgnoreCase("KnownPacketsPunishment")) KNOWN_PACKETS_PUNiSHMENT = Integer.parseInt(pValue);

         else if (pName.equalsIgnoreCase("ZoneTown")) ZONE_TOWN = Integer.parseInt(pValue);

Index: C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/network/L2GameClient.java
===================================================================
--- C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/network/L2GameClient.java	(revision 1025)
+++ C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/network/L2GameClient.java	(working copy)
@@ -41,6 +41,7 @@
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.model.entity.L2Event;
import net.sf.l2j.gameserver.serverpackets.L2GameServerPacket;
+import net.sf.l2j.gameserver.util.FloodProtector;
import net.sf.l2j.util.EventData;

import com.l2jserver.mmocore.network.MMOClient;
@@ -84,6 +85,9 @@
	// Flood protection
	public byte packetsSentInSec = 0;
	public int packetsSentStartTick = 0;
+	 
+    // KnownPacket protection
+    private int knownPacketCount = 100;

	public L2GameClient(MMOConnection<L2GameClient> con)
	{
@@ -489,6 +493,26 @@
     	}
     }
     
+    public boolean checkknownPackets()
+	{
+		if(this.getActiveChar() != null && 
+				!FloodProtector.getInstance().tryPerformAction(this.getActiveChar().getObjectId(), FloodProtector.PROTECTED_KNOWNPACKET))
+		{
+			knownPacketCount++;
+			if (knownPacketCount >= Config.MAX_KNOWN_PACKETS)
+			{
+				return true;
+			}
+			else
+				return false;
+		}
+		else
+		{
+			knownPacketCount = 0;
+			return false;
+		}
+	}
+    
     /**
      * Produces the best possible string representation of this client.
      */
Index: C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/network/L2GamePacketHandler.java
===================================================================
--- C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/network/L2GamePacketHandler.java	(revision 1025)
+++ C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/network/L2GamePacketHandler.java	(working copy)
@@ -18,10 +18,13 @@
package net.sf.l2j.gameserver.network;

import java.nio.ByteBuffer;
+import java.sql.Time;
import java.util.concurrent.RejectedExecutionException;
import java.util.logging.Logger;

import net.sf.l2j.Config;
+import net.sf.l2j.gameserver.GmListTable;
+import net.sf.l2j.gameserver.LoginServerThread;
import net.sf.l2j.gameserver.ThreadPoolManager;
import net.sf.l2j.gameserver.clientpackets.*;
import net.sf.l2j.gameserver.network.L2GameClient.GameClientState;
@@ -811,6 +814,8 @@
      	byte[] array = new byte[size];
      	buf.get(array);
      	_log.warning(Util.printData(array, size));
+     	if (Config.ENABLE_MAX_PACKET_PROTECTION)
+     		knownPacketProtection(client);
	}

	private void printDebugDoubleOpcode(int opcode, int id2, ByteBuffer buf, GameClientState state, L2GameClient client)
@@ -820,7 +825,50 @@
      	byte[] array = new byte[size]; 
      	buf.get(array);
      	_log.warning(Util.printData(array, size));
+     	if (Config.ENABLE_MAX_PACKET_PROTECTION)
+     		knownPacketProtection(client);
	}
+	
+	private void knownPacketProtection(L2GameClient client)
+	{
+		if(client.getActiveChar() != null && client.checkknownPackets())
+		{
+			punish(client);
+			return;
+		}
+	}
+	
+	private void punish(L2GameClient client)
+	{
+		switch(Config.KNOWN_PACKETS_PUNiSHMENT)
+		{
+			case(1):
+				if (client.getActiveChar() != null)
+				{
+					GmListTable.broadcastMessageToGMs("Player " + client.getActiveChar().toString() + " flooding known packets.");
+				}
+				break;
+			case(2):
+				_log.warning("PacketProtection: " + client.toString() + " got kicked due flooding of known packets");
+				if (client.getActiveChar() != null) 
+				{
+					GmListTable.broadcastMessageToGMs("Player " + client.getActiveChar().toString() + " flooding known packets and got kicked.");
+					client.getActiveChar().sendMessage("You are will be kicked for known packet flooding, GM informed.");
+					client.getActiveChar().closeNetConnection();
+				}
+				break;
+			case(3):
+				_log.warning("PacketProtection: " + client.toString() + " got banned due flooding of known packets");
+				LoginServerThread.getInstance().sendAccessLevel(client.getAccountName(), -99);
+				if(client.getActiveChar() != null)
+				{
+					GmListTable.broadcastMessageToGMs("Player " + client.getActiveChar().toString() + " flooding known packets and got banned.");
+					client.getActiveChar().sendMessage("You are banned for known packet flooding, GM informed.");
+					client.getActiveChar().closeNetConnection();
+				}
+				break;
+		}
+	}

	// impl
	public L2GameClient create(MMOConnection<L2GameClient> con)
Index: C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/util/FloodProtector.java
===================================================================
--- C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/util/FloodProtector.java	(revision 1025)
+++ C:/Workspace/L2_GameServer_It/java/net/sf/l2j/gameserver/util/FloodProtector.java	(working copy)
@@ -50,15 +50,16 @@

	// =========================================================
	// Enum
-	private static final int PROTECTEDACTIONSIZE = 3;
+	private static final int PROTECTEDACTIONSIZE = 4;

	// reuse delays for protected actions (in game ticks 1 tick = 100ms)
-	private static final int[] REUSEDELAY = new int[]{ 4, 42, 42 };
+	private static final int[] REUSEDELAY = new int[]{ 4, 42, 42, 15 };

	// protected actions
	public static final int PROTECTED_USEITEM	= 0;
	public static final int PROTECTED_ROLLDICE	= 1;
	public static final int PROTECTED_FIREWORK	= 2;
+	public static final int PROTECTED_KNOWNPACKET = 100;

	// =========================================================
	// Constructor

GoodT Newbie

GoodT

Posted
Posted

:D, players send to server max. +/- 100 packets for second, when they send more - they want lag server!!!

 

And name of protection? Its really irrelevant.

 

Important its, that works ;).

 

Keep smile guys  :P.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Posts

    • SilaVodi
      Hurry to buy Adena! Great prices!

      By SilaVodi · Posted

    • Databay
      █ 7,000,000+ RESIDENTIAL PROXIES ✅ FROM 0.65$ / GB █

      By Databay · Posted

      This is a bump: https://databay.com/  
    • Splicho
      [L2J] L2Relic

      By Splicho · Posted

      wtf is your website lol ai slop
    • wongerlt
      L2OFF API for NodeJS

      By wongerlt · Posted

      who have this files? or info about cached packets?
    • Banshee Garnet
      Fun L2PTS server

      By Banshee Garnet · Posted

      Hi maxcheaters, i am trying to bring back an old server ( L2Revenge) but with my own ideas, i only liked how it was and made the gameplay based on that just putting my own ideas.   So practicly is a PTS C6 with an extender that i work lately    Exp / SP is x45 adena is x200 and drops x5  so safe is +3 , max is unlimited and rate is 65% for both mage and fighter weapons I created a system that you can get on the levels the gear you need based on farm but for S grade theres a little farm to get some armor Tokens to unseal them. As you remember L2Revenge had olympiad / Tournament gear. So people abused them and had S grades that way just couldnt enchant them. So i made to be wearable only if u are nobless. That way i cancel this "exploit".  The server gives opportunity to solo and clans , epic gear ( epic weapons) or armors can be bought with raid tokens and you can craft them or get them with various ways Regarding Buffs: 24 buff slots no changes asked. Cov/Pony/Cat , siren - renewal - champion out of buffer , if u make the char as main roll u can use them or use the offline buffer system to sell them and get adenas. their time is 20 mins so that way we see again the " 1kk for rene/siren" or rec = song  Regarding armors: they are dropped ( parts ) from 3 only raids , rest lvl 76+ raids drop recipes , so crafting takes place (so if u are solo u can craft them )  there are 3 armors each armor have its purpose: Revenge Armors - Example for light ( its a glass cannon , high damage , less atk speed and less pdef ) - they mostly modify your base stats, so useable on sieges or off tank chars Titanium Armors - A little bit of balanced of all  Epic Armor - Daggers/Enchanters/Healers mostly but u can always combine your build    Regarding weapons: can be dropped from Monastery of Silence monsters or get them from NPC with Raid Tokens its like a 5% better than S grades and the S/A Activates at +4  Regarding retail gear: you need to unseal only S grades for a great amount of armor tokens all weapons on any grade need Soul crystals that are sold for adenas  stage 13 crystals are expensive or dropped from raids Regarding fun: There is a squash event a Fortress vs Fortress pvp event an RB Event at weekends and from Monday - Wednesday Tournament ( Olympiad is closed monday/tuesday/wednesday)  at tournament you can practice 1vs1 like olympiad but pots/ss allowed , gear allowed is only olympiad or tournament , each win of match gives u 5 glits at 100 glits u can be hero till restart Olympiad works the same way regarding gear allowance but works only thursday to friday and you win monthly hero Auction with Raid Tokens is activated Event medals from events can be exchanged for various items i try to make the oldschool with a little bit of new school systems Not planing to open it anytime soon as i still develop and make corrections to extender , looking forward to meet people that actually played this and are hyped to help on testing / development   P.S is c5 into interlude ( theres no akamanah / nor PI aswell , no lifestones) forgot to mention

  • Topics

×
×
  • Create New...

AdBlock Extension Detected!

Our website is made possible by displaying online advertisements to our members.

Please disable AdBlock browser extension first, to be able to use our community.

I've Disabled AdBlock