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It's not a bug, it's a feature.

M2 Download Center Download Here ( Internal ) Download Here ( Latest Version ) This WE is a version compiled directly by me which includes infinite fixes and features. It's certain that you won't longer use the worldeditor_en! To make it simple, I wrote all the details about this feature and the common WE inside the relative config file: (called WorldEditorRemix.ini) ; Info: ; -) 100% translated ; -) granny2.11 ; -) F6 as Insert alternative ; -) many default features not present inside the worldeditor_en (probably, that binary was taken out from an SVN long time ago and resource hacked) such as Ins for all regions and skyboxes ; -) WASD UPLEFTDOWNRIGHT to move around (+asynchronous diagonally movements) ; -) UP-LEFT-DOWN-RIGHT to move around*10 (+asynchronous diagonally movements) ; -) config file for few things ; Output options by default ; few others such as default WASD movement ; whether or not Insert should let you go where you were before the press ; no MAI dump when saving atlas ; whether or not DevIL should compress and remove alpha from minimap.dds ; whether or not loading .mdatr building heights ; default textureset when creating maps ; overlapped tabs ; other stuff ; -) several bugfixes ; default title app name ; attempting to write to an empty textureset name when creating new maps ; ViewRadius doubled every load&save ; shadowmap.dds creation ; assert when saving atlas ; crash when adjusting height ; many buffer under/overflows ; *.mdc collision data saving (for game_test) ; not checking output options when loading maps ; water brush waterid bug (the id was increased until 256 each time the function was called; now it's based on the water height just like it should be) ; init texture map reload map crash and last 2px always blank ; square shape even for up/down height brushes ; add textureset texture button (+multiselection) ; remove textureset texture feature (just selecting a texture from the list and pressing DELETE) ; creation of empty textureset with index -1 (changed to 0) ; change baseposition button ; misspelled stuff ; skybox bottom image (nb: you also need a fixed launcher for this) ; removed boring CTRL requirement (to move the camera) when editing daylight/attr ; fixed refresh texture imagebox onKey pressing the down/up keys (like when onClicking them) ; fixed TextureSet file creation if not existing ; fixed new wolfman motion event handling ; fixed crash when editing animation attack bones and 00010.gr2 was missing ; fixed locale/ymir/mob_proto load (it autodetects the most common structures) and <map>/regen.txt load/save ; fixed ./group.txt load ; fixed load/save/edit <map>/regen.txt (very nice for "m" regens, untested for "g") ; load from PACK is available if pack/property is present! Be sure pack/Index exists! ; fixed multi-object selection crash ; fixed crash when previewing a missing texture ; fixed not clearing of old environment (e.g. skybox) when switching maps ; fixed not creating property folders in root tree (object tab) ; fixed object attachment in Model Tab ; fixed newly particles names in Effect Tab ; fixed crash when saving a .mse script with no mesh model ; fixed crash when inserting a lower gradient ; -) created new TextureSet field when creating new maps ; -) created new Change/Delete Texture buttons when double-clicking a texture ; -) created Background Music playback and Shadow Recalculate buttons ; -) created water height "set 0z", "+1z", "-1z" buttons ; -) server_attr generator ; -) every crash will generate a logs/WorldEditorRemix_{target}_{date}.dmp file useful for debugging ; -) implemented a "water path" mapsettings option (the launcher requires additional code) ; -) implemented a "wind strength" msenv option (the launcher requires additional code) ; -) the "encrypt data" feature does nothing (unimplemented) ; Note: ; 0) there are no regressions in this version! a bug here means it'd also be present in older WE versions too! ; 1) the shadow output option is tricky: when UpdateUI is called, shadows are hidden although the check is pressed (i implemented the shadow recalculate function for that) #fixed since v11 ; 2) the bgm player requires /miles and the fadein/out doesn't work until you load the map ; 3) the adjusting height button works only if mdatr height is detected ; 4) the Debug version is laggy when working on maps such as n_flame_dungeon and n_ice_dungeon (by default, because SphereRadius are intensively checked in SphereLib\spherepack.h) ; 5) if you load a map, the script panels (where you load .msa et similia) will have the camera perspective a little fucked up (0z instead of -32767z or 0x 0y -163,94z) ; 6) few tree objects are not movable and/or highlightable after placed on the ground and their selection is invisible (you can still delete 'em) ; trick: draw a square selecting a normal building and 'em, then move the building and you'll see all of 'em will be moved! ; 7) the server_attr generator will clean all the unused flags! attr[idx]&=~0xFFFFFFF8; ; 8) you can read files from pack/Index 'n stuff but be aware that Property will not be considered! #fixed since v15 ; 9) the MonsterAreaInfo features are laggy and buggy as fuck ; 10) even though you can select many textures at once (using ctrl+click on textureset list; for brushing or initializing a base texture), you can't delete more than one at the same time ; 11) the .mdatr height is tricky; if you move a building, the height will not be refreshed until you put a new building or whatever you want to trigger the update event ; 12) by default, the worldeditor tries to render only the first 8 terrain textures of a 32x32px region (nb: a 1x1 map is a 256x256 px region) ; 13) the minimap rendering cannot catch the buildings/trees inside the first 2x2 regions due a ymir cache fault and you need to set the camera to "see" them ; 14) when the textureset, environment, etc load fails, the old filename still remains loaded ; 15) the attr flag "3" (three) has no implementation, so don't use it! ; 16) load from PACK doesn't load texturesets from files for first (if they are already in pack/), and the object placer's object list will remain empty because it takes the list from property/ (and not from pack/property) ; 17) to save the regen.txt you press CTRL+S ; 18) if you enable the wireframe (f4) when on Attr Tab, you see the terrain all white ; 19) the water brush disappears when the camera renders the waterwheel small/big effect ; 20) the monster area info goes under ground if you're outside the relative sectree ; 21) the full skybox may be displayed only after the top picture has been added (if the other textures have already been inserted) ; 22) the slider in the Attr Tab is something like "16 photoshop layers" in which you can split your attrs; not so helpful and quite confusing sometimes ; 23) the fixed model - object attachment attaches static objects (hairs'skeleton will not mirror the playing animation) ; 24) in environment tab, if you insert lower gradients, you may end up with an out of range crash #fixed since v30 ; 25) brushes working out-of-screen/map-range may affect random terrain places ; TODO: ; A) look at more than 8 textures for region -> DONE ; B) create a shortcut to fix the #5 note -> DONE ; C) disable the radius <= GetRadius()+0.0001f check to fix the #4 note -> REJECTED ; the worldeditor_en calls this assert and, if ignored, the lag ceases to exist (this will not occur in source version) ; at least, if the release version is not a problem for you, use that in those few cases when .mse are abused and try to kill the debug one ; D) translation in more languages other than english -> REJECTED ; english should be enough! ; E) alternative path for d: -> REJECTED ; you can mount d as a subpath of c like this: ; subst d: "c:\mt2stuff" ; F) need to fix note #19 #25 -> TODO [shortcuts] ; ### SHORTCUTS ; # ESC(ape) Clean cursor ; # Canc(el|Delete) Delete stuff such as selected buildings ; # Ctrl+S Save map ; # Ins(ert) or F6 Save shadowmap|minimap.dds ; # F3 BoundGrid Show/Hide ; # F4 Render UI Show/Hide ; # F11 WireFrame Show/Hide ; # R Reload Texture ; # Z and X Decrease/Increase Texture Splat by 0.1 ; # CapsLock Show GaussianCubic effect if shadows are displayed ; # L-Shift+1-6 Show TextureCountThreshold flags (&2-7) as colors on the ground ; # L-Shift+8 Set Max Showable texture to 8 (de-fix note 12) ; # L-Shift+0 Set Max Showable texture to 255 (fix note 12) ; # H Refresh MDATR Heights (useful when you move an object) (fix note 11) ; # Y Set Perspective as default (fix note 5) ; # T Set the Camera to catch all the object on the screen (w/a note 13) then you'll be ready to press Insert/F6 ; # DO NOT HAVE AN OBJECT SELECTED WHEN USING THOSE SHORTCUTS (MW1-7) ; # MouseWheel+1 move cursor x rotation ; # MouseWheel+2 move cursor y rotation ; # MouseWheel+3 move cursor z rotation ; # MouseWheel+4 move cursor height base (1x) ; # MouseWheel+5 move cursor height base (0.5x) ; # MouseWheel+6 move cursor height base (0.05x) ; # MouseWheel+7 move cursor ambience scale (1x) ; # MouseWheel+Q move selected object height base (1x) ; # MouseWheel+9 move selected object x position (1x) (+asyncronous) ; # MouseWheel+0 move selected object y position (1x) (+asyncronous) ; # MW+RSHIFT+9|0 as above but *10x (+asyncronous) ; # MW+RCONTROL+9|0 as above but *100x (+asyncronous) ; # MouseLeft Insert Objects ; # MouseRight Move camera (it could require CTRL too) ; # SPACE Start move/selected animation in Object/Effect/Fly CB ; # ESC Stop animation in Effect/Fly CB [config] ; ### CONFIG OPTIONS VIEW_CHAR_OUTPUT_BY_DEFAULT = 1 VIEW_SHADOW_OUTPUT_BY_DEFAULT = 1 VIEW_WATER_OUTPUT_BY_DEFAULT = 1 ; WINDOW_HEIGHT_SIZE = 1080 ; WINDOW_WIDTH_SIZE = 1920 WINDOW_FOV_SIZE = 45 ; #100 = 1px (minimal px movement when pressing WASD) WASD_MINIMAL_MOVE = 100 ; came back from where you were before pressing Insert/F6 NO_GOTO_AFTER_INSERT = 1 ; disable MAI dumps when saving atlas and/or pressing Insert/F6 NOMAI_ATLAS_DUMP = 1 ; disable minimap.dds alpha saving and enable compression NOMINIMAP_RAWALPHA = 1 ; enable .mdatr height collision loading when moving on buildings or adjusting terrain DETECT_MDATR_HEIGHT = 1 ; disable fog when loading maps NOFOG_ONMAPLOAD = 1 ; refresh all checkbox configurations when loading maps 'n stuff REFRESHALL_ONUPDATEUI = 0 ; set a default mapname prefix when creating new maps ("" to disable) NEW_MAP_MAPNAME_PREFIX = "metin2_map_" ; display a default textureset when creating new maps ("" to disable) ; note: it loads the filepath if exists, otherwise it will create an empty textureset file NEWMAP_TEXTURESETLOADPATH = "textureset\metin2_a1.txt" ; create a default textureset as "textureset/{mapname}.txt" ; note: this option is not considered if NEWMAP_TEXTURESETLOADPATH is not empty. [before v24] ; note: this option is not considered if the TextureSet path input is not empty when creating a new map [since v24] NEWMAP_TEXTURESETSAVEASMAPNAME = 1 ; remove the weird attr flags from the generated server_attr SERVERATTR_REMOVE_WEIRD_FLAGS = 1 ; show diffuse lighting to object VIEW_OBJECT_LIGHTING = 1 ; path of mob_proto used for regen MOB_PROTO_PATH = "locale/ymir/mob_proto" ; select monster area info checkbox at startup VIEW_MONSTER_AREA_INFO = 0 ; brush cursor / object selection color RGB float between 0.0 to 1.0 (default: green -> 0 1 0) RENDER_CURSOR_COLOR_R = 0.0 RENDER_CURSOR_COLOR_G = 1.0 RENDER_CURSOR_COLOR_B = 0.0 Download: [Hidden Content] How To Map: This release will not cover this part. Look at CryPrime`s tutorials to understand how to do it. About the ServerAttr Generator: (since v14) This is a beta function but it should work fine. I tested it on gm_guild_build (1x1), metin2_map_a1 (4x5), metin2_map_trent (2x2), metin2_n_snowm_01 (6x6) and the result was the same as the blackyuko map editor. (I use a different lzo version and I clean deprecated and useless flags, so the size is different from this last one but the "final image" will be the same; using game_test to fix his server_attr will let mine and his perfectly equal byte per byte) I also give you the source code of my server_attr generator function. CLICK A server_attr file is based on all the attr.atr files merged into a one raw RGBA image and each one scaled from 256x256 to 512x512. After that, the image will be splitted into sectors of 128x128 px and each one compressed using lzo compression. The server_attr header is composed by the size of the map*4. (e.g. a 4x4 will have a 16x16 size with 256 sectors inside) (gj ymir CLICK) An uncompressed server_attr sector is just like this: CLICK (the sub 4 byte header is the size returned by the LzoCompress which indicates how much the compressed sector data are large) Each attr.atr is just like this: CLICK (the header is composed of 6 byte in total: 3 WORDs respectively for version, width and height; they are always 2634, 1, 1 so don't bother about it) A single attr.atr scaled from 256x256 to 512x512 will be just like this: CLICK You can use the game_test (from source) to perform few tasks like: Create a server_attr from a .mcd file (I won't suggest it) a <collision data filename> <map directory> Regenerate an old server_attr to server_attr.new using the current lzo compression and cleaning useless flag CLICK c <filename> Other stuff such as b to create a character instance or q to quit About the SkyBox Bottom pic fix: (since v21) Both metin2launch.exe and worldeditor.exe should be edited to see the bottom pic of the skybox. Ymir messed up the code wrongly flipping the bottom image. Open ./Srcs/Client/EterLib/SkyBox.cpp and replace: ////// Face 5: BOTTOM v3QuadPoints[0] = D3DXVECTOR3(1.0f, -1.0f, -1.0f); v3QuadPoints[1] = D3DXVECTOR3(1.0f, 1.0f, -1.0f); v3QuadPoints[2] = D3DXVECTOR3(-1.0f, -1.0f, -1.0f); v3QuadPoints[3] = D3DXVECTOR3(-1.0f, 1.0f, -1.0f); with: ////// Face 5: BOTTOM v3QuadPoints[0] = D3DXVECTOR3(1.0f, 1.0f, -1.0f); v3QuadPoints[1] = D3DXVECTOR3(1.0f, -1.0f, -1.0f); v3QuadPoints[2] = D3DXVECTOR3(-1.0f, 1.0f, -1.0f); v3QuadPoints[3] = D3DXVECTOR3(-1.0f, -1.0f, -1.0f); then recompile. Credits:

M2 Download Center Download Here ( Internal ) Hi, here I publish my edit of the public Render Target System. I hate it, when people earn money with public systems. Preview: [Hidden Content] DL: [Hidden Content] Original Thread [Hidden Content]

M2 Download Center Download Here ( Internal ) Download Here ( GitHub ) Informations about system : When you will open a chest with drop , will appear this window. In this window you can preview drop of chest and you can make a setting how many chests you want open. [Hidden Content]

M2 Download Center Download Here ( Internal ) Hey there, I have an Halloween gift for you all. i have been working for a few hours on official like element image on target window(See screenshots below). When you click on a mob if it is defined as elemental, it will open an element image in addition to the target window. Don't forget to hit the like button! (C) Metin2 guild wars - coded by [GA]Ruin - 27/10/2017 (I create custom metin2 systems in c++/python. if you want a custom system send me a pm and we can talk over skype). Let's begin! Server Side: Open service.h, add in the end: #define ELEMENT_TARGET Open char.cpp, search for else { p.dwVID = 0; p.bHPPercent = 0; } add below: #ifdef ELEMENT_TARGET const int ELEMENT_BASE = 11; DWORD curElementBase = ELEMENT_BASE; DWORD raceFlag; if (m_pkChrTarget && m_pkChrTarget->IsMonster() && (raceFlag = m_pkChrTarget->GetMobTable().dwRaceFlag) >= RACE_FLAG_ATT_ELEC) { for (int i = RACE_FLAG_ATT_ELEC; i <= RACE_FLAG_ATT_DARK; i *= 2) { curElementBase++; int diff = raceFlag - i; if (abs(diff) <= 1024) break; } p.bElement = curElementBase - ELEMENT_BASE; } else { p.bElement = 0; } #endif open packet.h, search for: } TPacketGCTarget; add above: #ifdef ELEMENT_TARGET BYTE bElement; #endif Client side: open locale_inc.h, add in the end: #define ELEMENT_TARGET open packet.h, search for } TPacketGCTarget; add above: #ifdef ELEMENT_TARGET BYTE bElement; #endif open PythonNetworkPhaseGame.cpp, look for: else if (pInstPlayer->CanViewTargetHP(*pInstTarget)) replace below with the following: #ifdef ELEMENT_TARGET PyCallClassMemberFunc(m_apoPhaseWnd[PHASE_WINDOW_GAME], "SetHPTargetBoard", Py_BuildValue("(iii)", TargetPacket.dwVID, TargetPacket.bHPPercent, TargetPacket.bElement)); #else PyCallClassMemberFunc(m_apoPhaseWnd[PHASE_WINDOW_GAME], "SetHPTargetBoard", Py_BuildValue("(ii)", TargetPacket.dwVID, TargetPacket.bHPPercent)); #endif open PythonApplicationModule.cpp, look for #ifdef ENABLE_ENERGY_SYSTEM add above: #ifdef ELEMENT_TARGET PyModule_AddIntConstant(poModule, "ENABLE_VIEW_ELEMENT", 1); #else PyModule_AddIntConstant(poModule, "ENABLE_VIEW_ELEMENT", 0); #endif open game.py, look for def SetHPTargetBoard(self, vid, hpPercentage): if vid != self.targetBoard.GetTargetVID(): self.targetBoard.ResetTargetBoard() self.targetBoard.SetEnemyVID(vid) self.targetBoard.SetHP(hpPercentage) self.targetBoard.Show() replace with: if app.ENABLE_VIEW_ELEMENT: def SetHPTargetBoard(self, vid, hpPercentage,bElement): if vid != self.targetBoard.GetTargetVID(): self.targetBoard.ResetTargetBoard() self.targetBoard.SetEnemyVID(vid) self.targetBoard.SetHP(hpPercentage) self.targetBoard.SetElementImage(bElement) self.targetBoard.Show() else: def SetHPTargetBoard(self, vid, hpPercentage): if vid != self.targetBoard.GetTargetVID(): self.targetBoard.ResetTargetBoard() self.targetBoard.SetEnemyVID(vid) self.targetBoard.SetHP(hpPercentage) self.targetBoard.Show() open uitarget.py, look for import background add below: if app.ENABLE_VIEW_ELEMENT: ELEMENT_IMAGE_DIC = {1: "elect", 2: "fire", 3: "ice", 4: "wind", 5: "earth", 6 : "dark"} look for: self.isShowButton = False add below: if app.ENABLE_VIEW_ELEMENT: self.elementImage = None inside Destroy method, look for: self.__Initialize() add below: if app.ENABLE_VIEW_ELEMENT: self.elementImage = None inside ResetTargetBoard method, look for: self.hpGauge.Hide() add below: if app.ENABLE_VIEW_ELEMENT and self.elementImage: self.elementImage = None look for : def SetElementImage(self,elementId): add above: if app.ENABLE_VIEW_ELEMENT: def SetElementImage(self,elementId): try: if elementId > 0 and elementId in ELEMENT_IMAGE_DIC.keys(): self.elementImage = ui.ImageBox() self.elementImage.SetParent(self.name) self.elementImage.SetPosition(-60,-12) self.elementImage.LoadImage("d:/ymir work/ui/game/12zi/element/%s.sub" % (ELEMENT_IMAGE_DIC[elementId])) self.elementImage.Show() except: pass Compile server, client source and root pack and that's it! Enjoy! Happy halloween!

M2 Download Center Download Here ( Internal ) Hello, Didn't know whether to place this subject either here or on guides but since I'm gonna not only share the mitigation but also express my conclusion about this issue and further after-effects. Only part of codes are attached below. For methods definitions + headers jump here: [Hidden Content] 1. Vulnerability overview. Any kind of tcp application is required to have a server (anda client). Once a server is launched it's binded to appropriate socket and set on listening for further connections (in a cutoff, navigate here for more precise info) On the other side client is the one which is suppose to connect to server. It does it by connecting to server's socket and start to process a handshake. This is how it works in a big shortcut - or I should rather say, it does work if we deal with normal peer. In case of more-like modern apps the traffic is held by efficient algorithms that can carry even heavy traffic or eventual feeble attack. But since Metin2's core is not a state-of-art app and simply runs on old C style code (libthecore) without a real concurrency support that might dive us into some tricky issues. So let's imagine what happens if someone tries to pull off an attack and flood the server with enormous amount of packets. Since each of connection needs to be validated first, it goes through the handshake. Server catches it through the fdwatch function (jump to io_loop, main.cpp), then if no desc is presented moves it to AcceptDesc where the connection is validated. It is usually allowed unless the peer's ip is not in a banlist. Then desc is created and connection is saved for further handshake response. Sounds reasonable, right? Now imagine when thousands connection are accepted, validated, and expected to send handshake response. Does it still sound so optimistic? Additionally, when a desc is created it does allocated buffer for I/O traffic. Each connection. Each time. Each desc. Now do the math and try to conceive how much of memory is simply wasted. So that's the point we've been heading. That's our vulnerability. And btw, if so many agents are in the queue, do you think anybody will be able to connect your server? 2. Four major problems. Let's start from handshake itself. Imagine that someone approaches you and gives you his hand to shake it. And than second. And then third. Doesn't make sense, does it? Same applies to handshake process. Simply, only one handshake shall be ongoing for the host unless it completes it. So, let's jump to AcceptDesc in desc_manager.cpp and add this little code above: newd = M2_NEW DESC; // Let's check if a handshake from this host is already ongoing if (GetHostHandshake(peer)) { sys_log(0, "Handshake from %s is not permitted!", host); socket_close(desc); return NULL; } So let's consider this as solved for now. Then the second issue. Let's imagine yet another event. Someone shakes your hand but this time completes the handshake. But he does it again. And again. And again. Sounds exhausting? Let's add this 2 conditions below our recent code from above: static const int HOST_CONNECTION_LIMIT = 3; // In case if host completed handshake process let's check if it doesn't reach the limit if (GetHostConnectionCount(peer) >= HOST_CONNECTION_LIMIT) { sys_log(0, "Host %s connection limit has been reached!", host); socket_close(desc); return NULL; } // And block intrusive connections as well if (IsIntrusiveConnection(host)) { sys_log(0, "Host %s is intrusive!", host); socket_close(desc); return NULL; } First if checks if host doesn't reach the handshake limit and if it does - the host is dropped. Second if seeks for intrusive peers. That simply means if one tries to connect again, and again, and again in defined time lapse it probably turns out to be an attacking IP. Let's jump for a moment to desc.cpp, Initialize and add this variable initialization there: tt_creation_time = get_global_time(); Yet another problem solved. Still tho, all this code is considered to work more for authentication than for game's core. Why is so? Imagine a person how is not suppose to have any attention at all - a movie star for example. Usually when one walks on red carpet there are bunch of body guards sealing him/her out from the crowd around. Same should happen to game cores because why one would try to perform a handshake with game if hadn't even logged in? So that's we are going to do, simply whitelist players who were succeeded to perform through the login process and obtained login key. Firstly let's jump back to the desc_manager.cpp and add this little code above our previous alterations: // If it's not an auth server - check for validation first if (!g_bAuthServer) { if (!IsOnHandshakeWhitelist(peer)) { // sys_log(0, "Host %s has not validated through login!", host); socket_close(desc); return NULL; } } Now open input_db.cpp, move to AuthLogin function and add at the end: // Validating handshake TPacketGGHandshakeValidate pack; pack.header = HEADER_GG_HANDSHAKE_VALIDATION; strlcpy(pack.sUserIP, d->GetHostName(), sizeof(pack.sUserIP)); P2P_MANAGER::instance().Send(&pack, sizeof(pack)); And so on repeat it for AuthLoginOpenID if you use it. Now let's jump to input_p2p.cpp, move to Analyze function and after the initial syslog: // Auth server is not allowed for p2p if (g_bAuthServer) { // Clearing buffers for dynamic packets switch (bHeader) { case HEADER_GG_RELAY: { TPacketGGRelay * p = (TPacketGGRelay *) c_pData; if (m_iBufferLeft < sizeof(TPacketGGRelay) + p->lSize) iExtraLen = -1; else iExtraLen = p->lSize; } break; case HEADER_GG_NOTICE: { TPacketGGNotice * p = (TPacketGGNotice *) c_pData; if (m_iBufferLeft < sizeof(TPacketGGNotice) + p->lSize) iExtraLen = -1; else iExtraLen = p->lSize; } break; case HEADER_GG_GUILD: { iExtraLen = m_iBufferLeft - sizeof(TPacketGGGuild); } break; case HEADER_GG_MONARCH_NOTICE: { TPacketGGMonarchNotice * p = (TPacketGGMonarchNotice *) c_pData; if (m_iBufferLeft < p->lSize + sizeof(TPacketGGMonarchNotice)) iExtraLen = -1; else iExtraLen = p->lSize; } break; } return iExtraLen; } Since some of the packets might be dynamic, we need to ensure that data they hold is cleared properly. If you have more dynamic packets binded - add them as above. Move to db.cpp, find function SendLoginPing and replace with following: void DBManager::SendLoginPing(const char * c_pszLogin) { /* TPacketGGLoginPing ptog; ptog.bHeader = HEADER_GG_LOGIN_PING; strlcpy(ptog.szLogin, c_pszLogin, sizeof(ptog.szLogin)); if (!g_pkAuthMasterDesc) // If I am master, broadcast to others { P2P_MANAGER::instance().Send(&ptog, sizeof(TPacketGGLoginPing)); } else // If I am slave send login ping to master { g_pkAuthMasterDesc->Packet(&ptog, sizeof(TPacketGGLoginPing)); } */ } Avoiding clearing billing like that (wtf is that btw, shouldn't be executed at all). Now move to packet_info.cpp and add this code in constructor: Set(HEADER_GG_HANDSHAKE_VALIDATION, sizeof(TPacketGGHandshakeValidate), "HandShakeValidation", false); Jump back to input_p2p.cpp and add this case in Analyze function: case HEADER_GG_HANDSHAKE_VALIDATION: DESC_MANAGER::instance().AddToHandshakeWhiteList((const TPacketGGHandshakeValidate *) c_pData); break; Finally jump to ClientManager.cpp in DB. Find function QUERY_SETUP and if condition with bAuthServer and add there following code: peer->SetChannel(1); Sine P2P communication is allowed only for peers possessing any channel number greater than zero, we set it. Usually this practice should be forbidden but since we restrain the traffic for auth server (with code above) it should be safe. Beware that this might cause first login failed because of packet propagation that can reach the cores after player connects. Voilà, were mostly done with coding! Last but no least, we need to take a brief introduction into kqueue and tedious tour between sockets and kernel vars. Starting with kqueue. I would try to explain this but you better jump to this link. Freebsd documentation always appreciated. Since Metin2 implementation of kqueue wrapper has its size limit you may try to increase it a bit and seek for a feedback. If'd like to do so jump to main.cpp, start function and edit this variable: main_fdw = fdwatch_new(VALUE); Yet keep in mind! Do not try to over-optimize it! Try to experiment, put the different values. If you somehow screw it up it might drag you into the checkpoint issues and eventually crash the whole app. So now a few words about sockets and how the listening process works. When each connection aiming to appropriate port is detected it is dropped into the queue where it's waiting for application to pick it up. So simply we can consider this as a waiting queue like in a grocery store. The point is that this queue has it's limit and once the limit is reached, any new connection is declined at sight. The listening limit for Metin2 core is wrapped into variable called SOMAXCONN. If you dive into C socket documentation you can find something like this: /* *Maximum queue length specifiable by listen /* #define SOMAXCONN 10 As for me it was 128. Since it's a define the value is simply embedded into the app and you cannot manipulate it once a binary is built. So let's change it to let more connection be scheduled. You may ask, why? If player tries to log in it does connect the channel port. If the channel is unavailable you see fadeout and connection is terminated. It happens because there is no place in the queue thus connection is scheduled at all. But be careful! Do not set this value into some high-peak numbers! Be aware that our io_loop function need to iterate through these all events and manage to handle this during the heartbeat session. If you try to over optimize this value you can end up causing lags on the server, internal packets delays and more. In case you'd ask me, value around 1024 is acceptable but still it's better if you take some lecture and experiment a bit. And one more thing, don't forget to set this kernel option on the machine where your server runs: sysctl kern.ipc.soacceptqueue=1024 sysctl kern.ipc.somaxconn=1024 So we are done! Don't forget to add the code from my github repo! Epilogue Metin2's quite an old app and we should not forget about that. The netcode is old, rubbish and cumbersome thus this issue might be only one of many we haven't found just yet. Keep in mind tho that even that mitigation won't protect your server. Actually I doubt that even rewriting the code into more modern shape would do that if you don't get yourselves a good protection. Protection, filters, external firewalls are actually the key especially now when stressers and all this stuff are back and harmful again. Hope that this little thread will help you in your future development. Extra I manage to write a little collector for getting rid of handshakes that never completed this process (outdated). If you'd like to switch it on jump to desc_manager.cpp constructor and add there: CEventFunctionHandler::instance().AddEvent([this](SArgumentSupportImpl *) { desc_manager_garbage_collector_info* info = AllocEventInfo<desc_manager_garbage_collector_info>(); m_pkDescManagerGarbageCollector = event_create(desc_manager_garbage_collector_event, info, PASSES_PER_SEC(1)); }, "DESC_MANAGER_COLLECTOR", 1); Beware that you need this feature: And don't forget to add this to destructor: event_cancel(&m_pkDescManagerGarbageCollector); Regards Btw, credits for @Flourine for flooding my dev server with 20k packets per sec (asked for 2 btw). That helped me to analyze the problem.

didn't test but in theory it can works void regen_free_in_map(int32_t lMapIndex) { for (auto& pRegen = regen_list; pRegen != nullptr; pRegen = pRegen->next) { if (pRegen->lMapIndex == lMapIndex) { if (pRegen->prev) pRegen->prev->next = pRegen->next; if (pRegen->next) pRegen->next->prev = pRegen->prev; event_cancel(&pRegen->event); M2_DELETE(pRegen); } } }

Go in your source directories and do the command. It's just a search to understand where is your problem. (you told don't know where is, I think it's not default thing). # <- means is a shell command.

I recommend @Hades ✔, it's only thing this guy can do.

Bug-Fix for all others. Preview is now only on Items in Inventory UiToolTip-Fix.txt

M2 Download Center Download Here ( Internal )

He's trying to call some API functions for making a DLL injectable to metin2 client = cheat/hack. @ledi12 We don't support this here, topic closed.

Most of the players ignore the bugs but they quite just because of this. It’s frustrating i feel you. I feel all players and i hope there is a good dev here to end this.

He sure know to write in english. He is doing in his own way, he only want to learn more programming. Don't complain about a free release, take the system and name how you want the variable names

And why didn't write better than my tutorial? Or why didn't do GF's 7&8 skills, if these are very complex?