UNLOZE/sm-ext-PhysHooks
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Update sig+patch but disable them

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It's really cursed and I don't wanna deal with that for now, we can make do without the ONE plugin that needs it
This commit is contained in:
xen 2025-02-22 18:50:50 +02:00
parent e6f1a6069c
commit d1f88e0819
1 changed files with 31 additions and 17 deletions
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48
extension.cpp
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@ -68,8 +68,8 @@ struct SrcdsPatch
#if SOURCE_ENGINE == SE_CSS && defined PLATFORM_LINUX #if SOURCE_ENGINE == SE_CSS && defined PLATFORM_LINUX
{ {
"Physics_RunThinkFunctions", "Physics_RunThinkFunctions",
(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", (unsigned char *)"\x8B\x14\x9E\x85\xD2\x74\x00\xA1\x00\x00\x00\x00\x83\xEC\x00\xF3\x0F\x10\x55\x00\xF3\x0F\x11\x50\x00\xFF",
"xxxxxxxx????xxxxxxxxxx????", "xxxxxx?x????xx?xxxx?xxxx?x",
NULL, NULL,
0, 0, 0, false 0, 0, 0, false
} }
@ -153,7 +153,7 @@ void (__fastcall *g_pPhysics_SimulateEntity)(CBaseEntity *pEntity) = NULL;
void Physics_SimulateEntity_CustomLoop(CBaseEntity **ppList, int Count, float Startime) void Physics_SimulateEntity_CustomLoop(CBaseEntity **ppList, int Count, float Startime)
{ {
CBaseEntity *apPlayers[g_iMaxPlayers]; CUtlVectorFixed<CBaseEntity*, 64> apPlayers;
int iPlayers = 0; int iPlayers = 0;
// Remove players from list and put into apPlayers // Remove players from list and put into apPlayers
@ -497,19 +497,22 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
} }
#if SOURCE_ENGINE == SE_CSS && defined PLATFORM_LINUX #if SOURCE_ENGINE == SE_CSS && defined PLATFORM_LINUX
// mov [esp+8], edi ; startime // sub esp, 4 ; allocate room on stack for starttime
// mov [esp+4], eax ; count // movss [esp], xmm2 ; startime
// mov [esp], esi ; **list // push eax ; count
// push esi ; **list
// call NULL ; <- our func here // call NULL ; <- our func here
// jmp +16 ; jump over useless instructions // add esp, 12 ; fix up stack
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"; // jmp +24 ; jump over useless instructions
//"\x8B\x14\x9E\x85\xD2\x74\x00\xA1\x00\x00\x00\x00\x83\xEC\x00\xF3\x0F\x10\x55\x00\xF3\x0F\x11\x50\x00\xFF"
static unsigned char aPatch[] = "\x83\xEC\x04\xF3\x0F\x11\x14\x24\x50\x56\xE8\x00\x00\x00\x00\x83\xC4\x0C\xEB\x18\x90\x90\x90\x90\x90\x90";
gs_Patches[0].pPatch = aPatch; gs_Patches[0].pPatch = aPatch;
// put our function address into the relative call instruction // put our function address into the relative call instruction
// relative call: new PC = PC + imm1 // relative call: new PC = PC + imm1
// call is at + 11 after pPatchAddress // call is at + 10 after pPatchAddress
// PC will be past our call instruction so + 5 // PC will be past our call instruction so + 5
*(uintptr_t *)&aPatch[12] = (uintptr_t)Physics_SimulateEntity_CustomLoop - (pPatchAddress + 11 + 5); *(uintptr_t *)&aPatch[11] = (uintptr_t)Physics_SimulateEntity_CustomLoop - (pPatchAddress + 10 + 5);
#elif SOURCE_ENGINE == SE_CSGO && defined PLATFORM_LINUX #elif SOURCE_ENGINE == SE_CSGO && defined PLATFORM_LINUX
// mov [esp+8], edi ; startime // mov [esp+8], edi ; startime
// mov [esp+4], eax ; count // mov [esp+4], eax ; count
@ -545,6 +548,10 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
#error "Unsupported platform" #error "Unsupported platform"
#endif #endif
bool bSuccess = true;
// TODO: Fix this cursed patch
/*
// Apply all patches // Apply all patches
for(size_t i = 0; i < sizeof(gs_Patches) / sizeof(*gs_Patches); i++) for(size_t i = 0; i < sizeof(gs_Patches) / sizeof(*gs_Patches); i++)
{ {
@ -553,17 +560,17 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
if(!g_pGameConf->GetMemSig(pPatch->pSignature, (void **)&pPatch->pAddress) || !pPatch->pAddress) if(!g_pGameConf->GetMemSig(pPatch->pSignature, (void **)&pPatch->pAddress) || !pPatch->pAddress)
{ {
snprintf(error, maxlength, "Could not find symbol: %s", pPatch->pSignature); g_pSM->LogError(myself, "Could not find symbol: %s", pPatch->pSignature);
SDK_OnUnload(); bSuccess = false;
return false; continue;
} }
pPatch->pPatchAddress = FindPattern(pPatch->pAddress, pPatch->pPatchSignature, pPatch->pPatchPattern, 1024); pPatch->pPatchAddress = FindPattern(pPatch->pAddress, pPatch->pPatchSignature, pPatch->pPatchPattern, 1024);
if(!pPatch->pPatchAddress) if(!pPatch->pPatchAddress)
{ {
snprintf(error, maxlength, "Could not find patch signature for symbol: %s", pPatch->pSignature); g_pSM->LogError(myself, "Could not find patch signature for symbol: %s", pPatch->pSignature);
SDK_OnUnload(); bSuccess = false;
return false; continue;
} }
pPatch->pOriginal = (unsigned char *)malloc(PatchLen * sizeof(unsigned char)); pPatch->pOriginal = (unsigned char *)malloc(PatchLen * sizeof(unsigned char));
@ -576,10 +583,17 @@ bool PhysHooks::SDK_OnLoad(char *error, size_t maxlength, bool late)
} }
SourceHook::SetMemAccess((void *)pPatch->pPatchAddress, PatchLen, SH_MEM_READ|SH_MEM_EXEC); SourceHook::SetMemAccess((void *)pPatch->pPatchAddress, PatchLen, SH_MEM_READ|SH_MEM_EXEC);
} }
*/
if (!bSuccess)
{
SDK_OnUnload();
return false;
}
g_pOnRunThinkFunctions = forwards->CreateForward("OnRunThinkFunctions", ET_Ignore, 1, NULL, Param_Cell); g_pOnRunThinkFunctions = forwards->CreateForward("OnRunThinkFunctions", ET_Ignore, 1, NULL, Param_Cell);
g_pOnPrePlayerThinkFunctions = forwards->CreateForward("OnPrePlayerThinkFunctions", ET_Ignore, 0, NULL); g_pOnPrePlayerThinkFunctions = forwards->CreateForward("OnPrePlayerThinkFunctions", ET_Ignore, 0, NULL);
g_pOnPostPlayerThinkFunctions = forwards->CreateForward("OnPostPlayerThinkFunctions", ET_Ignore, 0, NULL); g_pOnPostPlayerThinkFunctions = forwards->CreateForward("OnPostPlayerThinkFunctions", ET_Ignore, 0, NULL); // NOTE: This relies on the cursed patch above
g_pOnRunThinkFunctionsPost = forwards->CreateForward("OnRunThinkFunctionsPost", ET_Ignore, 1, NULL, Param_Cell); g_pOnRunThinkFunctionsPost = forwards->CreateForward("OnRunThinkFunctionsPost", ET_Ignore, 1, NULL, Param_Cell);
return true; return true;