CS:GO support
This commit is contained in:
parent
d241bda1f8
commit
8b955e85a2
186
extension.cpp
186
extension.cpp
@ -65,16 +65,36 @@ struct SrcdsPatch
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bool engine;
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} gs_Patches[] = {
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// Hook: Replace call inside Physics_RunThinkFunctions
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#if SOURCE_ENGINE == SE_CSS && defined PLATFORM_LINUX
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{
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"_Z25Physics_RunThinkFunctionsb",
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"Physics_RunThinkFunctions",
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(unsigned char *)"\x8B\x04\x9E\x85\xC0\x74\x13\xA1\x00\x00\x00\x00\x89\x78\x0C\x8B\x04\x9E\x89\x04\x24\xE8\x00\x00\x00\x00",
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"xxxxxxxx????xxxxxxxxxx????",
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NULL,
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0, 0, 0, false
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}
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#elif SOURCE_ENGINE == SE_CSGO && defined PLATFORM_LINUX
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{
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"Physics_RunThinkFunctions",
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(unsigned char *)"\xA1\x5C\xD8\x42\x01\x89\x78\x10\x8B\x04\x9E\x89\x04\x24\xE8\xAD\xFC\xFF\xFF\x83\xC3\x01\x3B\x5D\xD4\x75\xE5",
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"x????xxxxxxxxxx????xxxxxxxx",
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NULL,
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0, 0, 0, false
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}
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#elif SOURCE_ENGINE == SE_CSGO && defined PLATFORM_WINDOWS
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{
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"Physics_RunThinkFunctions",
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(unsigned char *)"\x8B\xF0\x0F\x1F\x84\x00\x00\x00\x00\x00\x8B\x0D\xD0\x52\xA3\x10\xF3\x0F\x10\x45\xFC\xF3\x0F\x11\x41\x10\x8B\x0C\xBB\xE8\x18\xFE\xFF\xFF\x47\x3B\xFE\x7C\xE3\x8B\x75\xF4",
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"xxxxxxxxxxxx????xxxxxxxxxxxxxx????xxxxxxxx",
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NULL,
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0, 0, 0, false
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}
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#else
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#error "Unsupported platform"
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#endif
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};
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uintptr_t FindPattern(uintptr_t BaseAddr, const unsigned char *pData, const char *pPattern, size_t MaxSize);
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uintptr_t FindPattern(uintptr_t BaseAddr, const unsigned char *pData, const char *pPattern, size_t MaxSize, bool Reverse=false);
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/**
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* @file extension.cpp
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@ -124,7 +144,12 @@ DETOUR_DECL_STATIC1(DETOUR_RunThinkFunctions, void, bool, simulating)
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}
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}
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#if defined PLATFORM_LINUX
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void (*g_pPhysics_SimulateEntity)(CBaseEntity *pEntity) = NULL;
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#elif defined PLATFORM_WINDOWS
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void (__fastcall *g_pPhysics_SimulateEntity)(CBaseEntity *pEntity) = NULL;
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#endif
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void Physics_SimulateEntity_CustomLoop(CBaseEntity **ppList, int Count, float Startime)
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{
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CBaseEntity *apPlayers[SM_MAXPLAYERS];
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@ -168,6 +193,7 @@ void Physics_SimulateEntity_CustomLoop(CBaseEntity **ppList, int Count, float St
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// Post Player simulation done
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if(g_pOnPostPlayerThinkFunctions->GetFunctionCount())
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{
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gpGlobals->curtime = Startime;
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g_pOnPostPlayerThinkFunctions->Execute();
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}
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@ -356,6 +382,8 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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g_pDetour_RunThinkFunctions->EnableDetour();
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#if defined PLATFORM_LINUX
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// Find VTable for CTriggerMoved
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uintptr_t pCTriggerMoved;
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if(!g_pGameConf->GetMemSig("CTriggerMoved", (void **)(&pCTriggerMoved)) || !pCTriggerMoved)
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@ -364,8 +392,6 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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SDK_OnUnload();
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return false;
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}
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// First function in VTable
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g_CTriggerMoved = (CTriggerMoved *)(pCTriggerMoved + 8);
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// Find VTable for CTouchLinks
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uintptr_t pCTouchLinks;
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@ -375,9 +401,68 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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SDK_OnUnload();
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return false;
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}
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#if SOURCE_ENGINE == SE_CSS
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// First function in VTable
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g_CTriggerMoved = (CTriggerMoved *)(pCTriggerMoved + 8);
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g_CTouchLinks = (CTouchLinks *)(pCTouchLinks + 8);
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#elif SOURCE_ENGINE == SE_CSGO
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// On Linux CSGO we can only find the typeinfo name '_ZTS' for the vtable
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uintptr_t pCTriggerMoved_ZTS = pCTriggerMoved;
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uintptr_t pCTouchLinks_ZTS = pCTouchLinks;
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// This leads us to the first item in the typeinfo '_ZTI' if we search for a reference of '_ZTS' addr in reverse
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uintptr_t pCTriggerMoved_ZTI = FindPattern(pCTriggerMoved_ZTS, (unsigned char *)&pCTriggerMoved_ZTS, "xxxx", 0x100, true);
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uintptr_t pCTouchLinks_ZTI = FindPattern(pCTouchLinks_ZTS, (unsigned char *)&pCTouchLinks_ZTS, "xxxx", 0x100, true);
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if(!pCTriggerMoved_ZTI || !pCTouchLinks_ZTI)
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{
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snprintf(error, maxlength, "Failed to FindPattern CTriggerMoved_ZTS or CTouchLinks_ZTI.\n");
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SDK_OnUnload();
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return false;
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}
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// The actual '_ZTI' is at -4 from the element we found inside it
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pCTriggerMoved_ZTI -= 4;
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pCTouchLinks_ZTI -= 4;
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// Now we can search for a reference of '_ZTI' in reverse, it'll be the first item of our vtable / '_ZTV'
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pCTriggerMoved = FindPattern(pCTriggerMoved_ZTI, (unsigned char *)&pCTriggerMoved_ZTI, "xxxx", 0x100, true);
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pCTouchLinks = FindPattern(pCTouchLinks_ZTI, (unsigned char *)&pCTouchLinks_ZTI, "xxxx", 0x100, true);
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if(!pCTriggerMoved || !pCTouchLinks)
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{
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snprintf(error, maxlength, "Failed to FindPattern CTriggerMoved_ZTV or CTouchLinks_ZTI.\n");
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SDK_OnUnload();
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return false;
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}
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// First function in VTable
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g_CTriggerMoved = (CTriggerMoved *)(pCTriggerMoved + 4);
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g_CTouchLinks = (CTouchLinks *)(pCTouchLinks + 4);
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#else
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#error "Unsupported platform"
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#endif
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#elif defined PLATFORM_WINDOWS
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// Find VTable for CTriggerMoved
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if(!g_pGameConf->GetAddress("CTriggerMoved", (void **)(&g_CTriggerMoved)) || !g_CTriggerMoved)
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{
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snprintf(error, maxlength, "Failed to find CTriggerMoved.\n");
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SDK_OnUnload();
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return false;
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}
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// Find VTable for CTouchLinks
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if(!g_pGameConf->GetAddress("CTouchLinks", (void **)(&g_CTouchLinks)) || !g_CTouchLinks)
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{
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snprintf(error, maxlength, "Failed to find CTouchLinks.\n");
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SDK_OnUnload();
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return false;
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}
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#else
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#error "Unsupported platform"
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#endif
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g_SH_TriggerMoved = SH_ADD_DVPHOOK(CTriggerMoved, EnumElement, g_CTriggerMoved, SH_STATIC(TriggerMoved_EnumElement), false);
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g_SH_TouchLinks = SH_ADD_DVPHOOK(CTouchLinks, EnumElement, g_CTouchLinks, SH_STATIC(TouchLinks_EnumElement), false);
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@ -391,30 +476,11 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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return false;
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}
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void *pServerSo = dlopen("cstrike/bin/server_srv.so", RTLD_NOW);
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if(!pServerSo)
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{
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snprintf(error, maxlength, "Could not dlopen server_srv.so");
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SDK_OnUnload();
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return false;
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}
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void *pEngineSo = dlopen("bin/engine_srv.so", RTLD_NOW);
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if(!pEngineSo)
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{
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snprintf(error, maxlength, "Could not dlopen engine_srv.so");
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dlclose(pServerSo);
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SDK_OnUnload();
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return false;
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}
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/* Hook: Replace call inside Physics_RunThinkFunctions */
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uintptr_t pAddress = (uintptr_t)memutils->ResolveSymbol(pServerSo, gs_Patches[0].pSignature);
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if(!pAddress)
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uintptr_t pAddress;
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if(!g_pGameConf->GetMemSig(gs_Patches[0].pSignature, (void **)&pAddress) || !pAddress)
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{
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snprintf(error, maxlength, "Could not find symbol: %s", gs_Patches[0].pSignature);
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dlclose(pServerSo);
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dlclose(pEngineSo);
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snprintf(error, maxlength, "Failed to find Physics_RunThinkFunctions address.\n");
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SDK_OnUnload();
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return false;
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}
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@ -423,19 +489,17 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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if(!pPatchAddress)
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{
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snprintf(error, maxlength, "Could not find patch signature for symbol: %s", gs_Patches[0].pSignature);
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dlclose(pServerSo);
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dlclose(pEngineSo);
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SDK_OnUnload();
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return false;
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}
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#if SOURCE_ENGINE == SE_CSS && defined PLATFORM_LINUX
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// mov [esp+8], edi ; startime
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// mov [esp+4], eax ; count
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// mov [esp], esi ; **list
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// call NULL ; <- our func here
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// mov eax, ds:gpGlobals ; restore
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// jmp +11 ; jump over useless instructions
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static unsigned char aPatch[] = "\x89\x7C\x24\x08\x89\x44\x24\x04\x89\x34\x24\xE8\x00\x00\x00\x00\xA1\x00\x00\x00\x00\xEB\x0B\x90\x90\x90";
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// jmp +16 ; jump over useless instructions
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static unsigned char aPatch[] = "\x89\x7C\x24\x08\x89\x44\x24\x04\x89\x34\x24\xE8\x00\x00\x00\x00\xEB\x10\x90\x90\x90\x90\x90\x90\x90\x90";
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gs_Patches[0].pPatch = aPatch;
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// put our function address into the relative call instruction
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@ -443,9 +507,40 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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// call is at + 11 after pPatchAddress
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// PC will be past our call instruction so + 5
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*(uintptr_t *)&aPatch[12] = (uintptr_t)Physics_SimulateEntity_CustomLoop - (pPatchAddress + 11 + 5);
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#elif SOURCE_ENGINE == SE_CSGO && defined PLATFORM_LINUX
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// mov [esp+8], edi ; startime
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// mov [esp+4], eax ; count
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// mov [esp], esi ; **list
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// call NULL ; <- our func here
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// jmp +9 ; jump over useless instructions
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static unsigned char aPatch[] = "\x89\x7C\x24\x08\x89\x44\x24\x04\x89\x34\x24\xE8\x00\x00\x00\x00\xEB\x09\x90\x90\x90\x90\x90\x90\x90\x90\x90";
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gs_Patches[0].pPatch = aPatch;
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// restore "mov eax, ds:gpGlobals" from original to our patch after the call
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*(uintptr_t *)&aPatch[17] = *(uintptr_t *)(pPatchAddress + 8);
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// put our function address into the relative call instruction
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// relative call: new PC = PC + imm1
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// call is at + 11 after pPatchAddress
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// PC will be past our call instruction so + 5
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*(uintptr_t *)&aPatch[12] = (uintptr_t)Physics_SimulateEntity_CustomLoop - (pPatchAddress + 11 + 5);
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#elif SOURCE_ENGINE == SE_CSGO && defined PLATFORM_WINDOWS
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// sub esp, 4 ; allocate room on stack for startime
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// movss xmm0, [ebp-4] ; startime from stack into FP register
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// movss DWORD PTR [esp], xmm0 ; startime
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// push eax ; count
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// push ebx ; **list
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// call NULL ; <- our func here
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// add esp, 12 ; fix up stack
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// jmp +17 ; jump over useless instructions
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static unsigned char aPatch[] = "\x83\xEC\x04\xF3\x0F\x10\x45\xFC\xF3\x0F\x11\x04\x24\x50\x53\xE8\x00\x00\x00\x00\x83\xC4\x0C\xEB\x11\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90";
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gs_Patches[0].pPatch = aPatch;
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// put our function address into the relative call instruction
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// relative call: new PC = PC + imm1
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// call is at + 15 after pPatchAddress
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// PC will be past our call instruction so + 5
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*(uintptr_t *)&aPatch[16] = (uintptr_t)Physics_SimulateEntity_CustomLoop - (pPatchAddress + 15 + 5);
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#else
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#error "Unsupported platform"
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#endif
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// Apply all patches
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for(size_t i = 0; i < sizeof(gs_Patches) / sizeof(*gs_Patches); i++)
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@ -453,13 +548,9 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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struct SrcdsPatch *pPatch = &gs_Patches[i];
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int PatchLen = strlen(pPatch->pPatchPattern);
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void *pBinary = pPatch->engine ? pEngineSo : pServerSo;
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pPatch->pAddress = (uintptr_t)memutils->ResolveSymbol(pBinary, pPatch->pSignature);
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if(!pPatch->pAddress)
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if(!g_pGameConf->GetMemSig(pPatch->pSignature, (void **)&pPatch->pAddress) || !pPatch->pAddress)
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{
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snprintf(error, maxlength, "Could not find symbol: %s", pPatch->pSignature);
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dlclose(pServerSo);
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dlclose(pEngineSo);
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SDK_OnUnload();
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return false;
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}
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@ -468,8 +559,6 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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if(!pPatch->pPatchAddress)
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{
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snprintf(error, maxlength, "Could not find patch signature for symbol: %s", pPatch->pSignature);
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dlclose(pServerSo);
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dlclose(pEngineSo);
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SDK_OnUnload();
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return false;
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}
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@ -485,9 +574,6 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
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SourceHook::SetMemAccess((void *)pPatch->pPatchAddress, PatchLen, SH_MEM_READ|SH_MEM_EXEC);
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}
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dlclose(pServerSo);
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dlclose(pEngineSo);
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g_pOnRunThinkFunctions = forwards->CreateForward("OnRunThinkFunctions", ET_Ignore, 1, NULL, Param_Cell);
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g_pOnPrePlayerThinkFunctions = forwards->CreateForward("OnPrePlayerThinkFunctions", ET_Ignore, 0, NULL);
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g_pOnPostPlayerThinkFunctions = forwards->CreateForward("OnPostPlayerThinkFunctions", ET_Ignore, 0, NULL);
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@ -582,13 +668,14 @@ bool PhysHooks::SDK_OnMetamodLoad(ISmmAPI *ismm, char *error, size_t maxlen, boo
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return true;
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}
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uintptr_t FindPattern(uintptr_t BaseAddr, const unsigned char *pData, const char *pPattern, size_t MaxSize)
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uintptr_t FindPattern(uintptr_t BaseAddr, const unsigned char *pData, const char *pPattern, size_t MaxSize, bool Reverse)
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{
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unsigned char *pMemory;
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uintptr_t PatternLen = strlen(pPattern);
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pMemory = reinterpret_cast<unsigned char *>(BaseAddr);
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if(!Reverse)
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for(uintptr_t i = 0; i < MaxSize; i++)
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{
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uintptr_t Matches = 0;
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@ -599,6 +686,17 @@ uintptr_t FindPattern(uintptr_t BaseAddr, const unsigned char *pData, const char
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return (uintptr_t)(pMemory + i);
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}
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}
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else
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for(uintptr_t i = 0; i < MaxSize; i++)
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{
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uintptr_t Matches = 0;
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while(*(pMemory - i + Matches) == pData[Matches] || pPattern[Matches] != 'x')
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{
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Matches++;
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if(Matches == PatternLen)
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return (uintptr_t)(pMemory - i);
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}
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}
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return 0x00;
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}
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@ -1,6 +1,6 @@
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"Games"
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{
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"#default"
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"cstrike"
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{
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"Signatures"
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{
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@ -29,4 +29,69 @@
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}
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}
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}
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"csgo"
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{
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"Signatures"
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{
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"Physics_RunThinkFunctions"
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{
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"library" "server"
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"linux" "\x55\x89\xE5\x57\x56\x53\x83\xEC\x4C\xA1\x2A\x2A\x2A\x2A\x0F\xB6\x5D\x08"
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"windows" "\x55\x8B\xEC\x83\xEC\x0C\x53\x56\x8B\x35\x2A\x2A\x2A\x2A\x8A\xD9"
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}
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"Physics_SimulateEntity"
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{
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"library" "server"
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"linux" "\x55\x89\xE5\x57\x56\xBE\x2A\x2A\x2A\x2A\x53\x83\xEC\x4C\xA1\x2A\x2A\x2A\x2A"
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"windows" "\x56\x8B\xF1\x83\x7E\x1C\x00\x74\x2A\x80\xBE\x4B\x02\x00\x00\x00"
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}
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"CTriggerMoved"
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{
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"library" "engine"
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"linux" "13CTriggerMoved"
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}
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"CTouchLinks"
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{
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"library" "engine"
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"linux" "11CTouchLinks"
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}
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"SV_TriggerMoved"
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{
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"library" "engine"
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"windows" "\x55\x8B\xEC\x83\xEC\x34\xA1\x2A\x2A\x2A\x2A\x53\x56\x8B\xF1\xC7\x45\xCC\x2A\x2A\x2A\x2A\x8B\x08\x8A\xDA\xC7\x45\xE8\x00\x00\x00\x00\xC7\x45\xEC\x08\x00\x00\x00\xC7\x45\xF0\x08\x00\x00\x00\x8B\x01\x6A\x20\xFF\x50\x04\x56\x8D\x4D\xCC\x89\x45\xE8\xC7\x45\xF4\x00\x00\x00\x00\x89\x45\xF8\x88\x5D\xFC\xE8\x2A\x2A\x2A\x2A\x33\xF6"
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}
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"SV_SolidMoved"
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{
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"library" "engine"
|
||||
"windows" "\x55\x8B\xEC\xA1\x2A\x2A\x2A\x2A\x83\xEC\x18\x56\x8B\xF1\x6A\x20\xC7\x06\x2A\x2A\x2A\x2A\xC7\x46\x50\x00\x00\x00\x00\xC7\x46\x6C\x00\x00\x00\x00\xC7\x46\x70\x08\x00\x00\x00\xC7\x46\x74\x08\x00\x00\x00\x8B\x08\x8B\x01\xFF\x50\x04\x8B\x4D\x08\x89\x46\x6C\xC7\x46\x78\x00\x00\x00\x00\x89\x46\x7C\x89\x4E\x60\xF6\x01\x04"
|
||||
}
|
||||
}
|
||||
|
||||
"Addresses"
|
||||
{
|
||||
"CTriggerMoved"
|
||||
{
|
||||
"windows"
|
||||
{
|
||||
"signature" "SV_TriggerMoved"
|
||||
"read" "18"
|
||||
}
|
||||
}
|
||||
|
||||
"CTouchLinks"
|
||||
{
|
||||
"windows"
|
||||
{
|
||||
"signature" "SV_SolidMoved"
|
||||
"read" "18"
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user