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hacks.cpp
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hacks.cpp
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/**
* vim: set ts=4 :
* =============================================================================
* Source Dedicated Server Wrapper for Mac OS X
* Copyright (C) 2011 Scott "DS" Ehlert. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "hacks.h"
#include "mm_util.h"
#include "CDetour/detours.h"
#include "osw/SteamTypes.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#include <list>
#include <AvailabilityMacros.h>
#include <CoreServices/CoreServices.h>
#include <mach/task.h>
#include <mach-o/nlist.h>
#include <crt_externs.h>
#include "platform.h"
#include "HSGameLib.h"
/* Define things from 10.6 SDK for older SDKs */
#ifndef MAC_OS_X_VERSION_10_6
#define TASK_DYLD_INFO 17
struct task_dyld_info
{
mach_vm_address_t all_image_info_addr;
mach_vm_size_t all_image_info_size;
};
typedef struct task_dyld_info task_dyld_info_data_t;
#define TASK_DYLD_INFO_COUNT (sizeof(task_dyld_info_data_t) / sizeof(natural_t))
#endif
#if defined(PLATFORM_X86)
static struct nlist dyld_syms[3];
#endif
#if !defined(ENGINE_CSGO)
static struct nlist dedicated_syms[7];
static struct nlist launcher_syms[5];
#endif
#if !defined(ENGINE_INS) && !defined(ENGINE_DOI) && !defined(ENGINE_CSGO)
static struct nlist engine_syms[3];
#endif
#if defined(ENGINE_OBV) || defined(ENGINE_OBV_SDL) || defined(ENGINE_GMOD)
static struct nlist fsstdio_syms[7];
#endif
#if defined(ENGINE_L4D)
static struct nlist material_syms[11];
#endif
#if defined(ENGINE_L4D)
static struct nlist tier0_syms[2];
#endif
static struct nlist steamclient_syms[2];
void *g_Launcher = NULL;
#if defined(ENGINE_CSGO)
void *g_EmptyShader = NULL;
static void **g_pShaderAPI;
static void **g_pShaderAPIDX8;
static void **g_pShaderDevice;
static void **g_pShaderDeviceDx8;
static void **g_pShaderDeviceMgr;
static void **g_pShaderDeviceMgrDx8;
static void **g_pShaderShadow;
static void **g_pShaderShadowDx8;
static void **g_pHWConfig;
#endif
CDetour *detSysLoadModules = NULL;
CDetour *detGetAppId = NULL;
CDetour *detSetAppId = NULL;
CDetour *detLoadModule = NULL;
CDetour *detFsLoadModule = NULL;
CDetour *detSteamLoadModule = NULL;
CDetour *detSetShaderApi = NULL;
CDetour *detDebugString = NULL;
CDetour *detDepotSetup = NULL;
CDetour *detDepotMount = NULL;
CDetour *detSdlInit = NULL;
struct AppSystemInfo_t
{
const char *m_pModuleName;
const char *m_pInterfaceName;
};
typedef bool (*AddSystems_t)(void *, AppSystemInfo_t *);
AddSystems_t AppSysGroup_AddSystems = NULL;
template <typename T>
static inline T SymbolAddr(void *base, struct nlist *syms, size_t idx)
{
return reinterpret_cast<T>(reinterpret_cast<uintptr_t>(base) + syms[idx].n_value);
}
#if defined(PLATFORM_X64) && defined(ENGINE_CSGO)
static SymbolInfo dedicated_syms_[3];
static inline void dumpUnknownSymbols(const SymbolInfo *info, size_t len)
{
for (size_t i = 0; i < len; i++)
{
if (!info[i].address && info[i].name)
puts(info[i].name);
}
}
bool InitSymbolData(const char *steamPath)
{
HSGameLib dedicated("dedicated");
const char *symbols[] = {
"_ZN4CSys11LoadModulesEP24CDedicatedAppSystemGroup",
"_ZN15CAppSystemGroup10FindSystemEPKc",
"_Z14Sys_LoadModulePKc",
nullptr
};
int notFound = dedicated.ResolveHiddenSymbols(dedicated_syms_, symbols);
if (notFound > 0)
{
printf("Failed to find symbols for dedicated.dylib\n");
dumpUnknownSymbols(dedicated_syms_, ARRAY_LENGTH(dedicated_syms_));
return false;
}
return true;
}
int SetLibraryPath(const char *path)
{
return HSGameLib::SetLibraryPath(path);
}
#else
static inline void dumpUnknownSymbols(struct nlist *syms)
{
while (syms->n_un.n_name)
{
if (syms->n_value == 0)
puts(syms->n_un.n_name);
syms++;
}
}
bool InitSymbolData(const char *steamPath)
{
memset(dyld_syms, 0, sizeof(dyld_syms));
dyld_syms[0].n_un.n_name = (char *)"__ZL18_dyld_set_variablePKcS0_";
dyld_syms[1].n_un.n_name = (char *)"_dyld_all_image_infos";
if (nlist("/usr/lib/dyld", dyld_syms) != 0)
{
printf("Failed to find symbols for dyld\n");
dumpUnknownSymbols(dyld_syms);
return false;
}
memset(dedicated_syms, 0, sizeof(dedicated_syms));
dedicated_syms[0].n_un.n_name = (char *)"__ZN4CSys11LoadModulesEP24CDedicatedAppSystemGroup";
dedicated_syms[1].n_un.n_name = (char *)"__ZN15CAppSystemGroup10AddSystemsEP15AppSystemInfo_t";
#if defined(ENGINE_L4D2) || defined(ENGINE_ND) || defined(ENGINE_OBV_SDL) || defined(ENGINE_GMOD)
dedicated_syms[2].n_un.n_name = (char *)"__Z14Sys_LoadModulePKc9Sys_Flags";
#else
dedicated_syms[2].n_un.n_name = (char *)"__Z14Sys_LoadModulePKc";
#endif
#if !defined(ENGINE_OBV) && !defined(ENGINE_OBV_SDL) && !defined(ENGINE_GMOD)
dedicated_syms[3].n_un.n_name = (char *)"_g_pFileSystem";
dedicated_syms[4].n_un.n_name = (char *)"__ZL17g_pBaseFileSystem";
dedicated_syms[5].n_un.n_name = (char *)"_g_FileSystem_Stdio";
#endif
#if defined(ENGINE_L4D)
dedicated_syms[6].n_un.n_name = (char *)"_g_szEXEName";
#endif
if (nlist("bin/dedicated.dylib", dedicated_syms) != 0)
{
printf("Failed to find symbols for dedicated.dylib\n");
dumpUnknownSymbols(dedicated_syms);
return false;
}
memset(launcher_syms, 0, sizeof(launcher_syms));
launcher_syms[0].n_un.n_name = (char *)"__ZN15CAppSystemGroup9AddSystemEP10IAppSystemPKc";
#if defined(ENGINE_INS) || defined(ENGINE_DOI)
launcher_syms[1].n_un.n_name = (char *)"__Z12CreateSDLMgrv";
launcher_syms[2].n_un.n_name = (char *)"__ZN7CSDLMgr4InitEv";
#elif !defined(ENGINE_OBV_SDL)
launcher_syms[1].n_un.n_name = (char *)"_g_CocoaMgr";
#endif
if (nlist("bin/launcher.dylib", launcher_syms) != 0)
{
printf("Failed to find symbols for launcher.dylib\n");
dumpUnknownSymbols(launcher_syms);
return false;
}
#if !defined(ENGINE_INS) && !defined(ENGINE_DOI)
memset(engine_syms, 0, sizeof(engine_syms));
#if defined(ENGINE_OBV) || defined(ENGINE_OBV_SDL) || defined(ENGINE_GMOD) || defined(ENGINE_L4D2) || defined(ENGINE_ND)
engine_syms[0].n_un.n_name = (char *)"_g_pLauncherMgr";
#else
engine_syms[0].n_un.n_name = (char *)"_g_pLauncherCocoaMgr";
#endif
if (nlist("bin/engine.dylib", engine_syms) != 0)
{
printf("Failed to find symbols for engine.dylib\n");
dumpUnknownSymbols(engine_syms);
return false;
}
#endif // !defined(ENGINE_INS) && !defined(ENGINE_DOI)
#if defined(ENGINE_OBV) || defined(ENGINE_OBV_SDL) || defined(ENGINE_GMOD)
memset(fsstdio_syms, 0, sizeof(fsstdio_syms));
fsstdio_syms[0].n_un.n_name = (char *)"__Z14Sys_LoadModulePKc9Sys_Flags";
#if defined(ENGINE_GMOD)
fsstdio_syms[1].n_un.n_name = (char *)"__ZN9GameDepot6System5SetupEv";
fsstdio_syms[2].n_un.n_name = (char *)"__ZN9GameDepot6System7GetListEv";
fsstdio_syms[3].n_un.n_name = (char *)"__ZN9GameDepot6System4LoadEv";
fsstdio_syms[4].n_un.n_name = (char *)"__ZN9GameDepot6System5MountERN16IGameDepotSystem11InformationE";
fsstdio_syms[5].n_un.n_name = (char *)"__Z13FillDepotListRSt4listIN16IGameDepotSystem11InformationESaIS1_EE";
#endif
#if defined(ENGINE_GMOD)
int notFound = nlist("bin/filesystem_stdio.dylib", fsstdio_syms);
if (notFound == 1 && fsstdio_syms[4].n_value == 0)
{
// Development version has an extra bool parameter
fsstdio_syms[4].n_un.n_name = (char *)"__ZN9GameDepot6System5MountERN16IGameDepotSystem11InformationEb";
notFound = nlist("bin/filesystem_stdio.dylib", fsstdio_syms);
}
if (notFound != 0)
{
printf("Failed to find symbols for filesystem_stdio.dylib\n");
dumpUnknownSymbols(fsstdio_syms);
return false;
}
#else
if (nlist("bin/filesystem_stdio.dylib", fsstdio_syms) != 0)
{
printf("Warning: Failed to find symbols for filesystem_stdio.dylib\n");
dumpUnknownSymbols(fsstdio_syms);
}
#endif
#endif
#if defined(ENGINE_L4D)
memset(material_syms, 0, sizeof(material_syms));
material_syms[0].n_un.n_name = (char *)"__ZN15CMaterialSystem12SetShaderAPIEPKc";
if (nlist("bin/materialsystem.dylib", material_syms) != 0)
{
printf("Failed to find symbols for materialsystem.dylib\n");
dumpUnknownSymbols(material_syms);
return false;
}
#if defined(ENGINE_L4D)
memset(tier0_syms, 0, sizeof(tier0_syms));
tier0_syms[0].n_un.n_name = (char *)"__ZL12linuxCmdline";
if (nlist("bin/libtier0.dylib", tier0_syms) != 0)
{
printf("Failed to find symbols for libtier0.dylib\n");
dumpUnknownSymbols(tier0_syms);
return false;
}
#endif
#endif // ENGINE_L4D || ENGINE_CSGO
memset(steamclient_syms, 0, sizeof(steamclient_syms));
steamclient_syms[0].n_un.n_name = (char *)"__Z14Sys_LoadModulePKc9Sys_Flags";
if (steamPath)
{
char clientPath[PATH_MAX];
mm_Format(clientPath, sizeof(clientPath), "%s/steamclient.dylib", steamPath);
int ret = nlist(clientPath, steamclient_syms);
if (ret == -1)
ret = nlist("bin/steamclient.dylib", steamclient_syms);
if (ret != 0)
{
printf("Failed to find symbols for steamclient.dylib\n");
dumpUnknownSymbols(steamclient_syms);
return false;
}
}
return true;
}
int SetLibraryPath(const char *path)
{
typedef void (*SetEnv_t)(const char *, const char *);
int ret = setenv("DYLD_LIBRARY_PATH", path, 1);
if (ret != 0)
{
return ret;
}
SInt32 osx_major, osx_minor;
Gestalt(gestaltSystemVersionMajor, &osx_major);
Gestalt(gestaltSystemVersionMinor, &osx_minor);
if ((osx_major == 10 && osx_minor >= 6) || osx_major > 10)
{
task_dyld_info_data_t dyld_info;
mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT;
if (task_info(mach_task_self(), TASK_DYLD_INFO, (task_info_t)&dyld_info, &count) != KERN_SUCCESS)
{
printf("Failed to get dyld task info for current process\n");
return -1;
}
/* Shift dyld address; this can happen with ASLR on Lion (10.7) */
dyld_syms[0].n_value += int32_t(dyld_info.all_image_info_addr - dyld_syms[1].n_value);
}
/* A hacky hack */
typedef void (*SetEnv_t)(const char *, const char *);
SetEnv_t DyldSetEnv = SymbolAddr<SetEnv_t>(NULL, dyld_syms, 0);
DyldSetEnv("DYLD_LIBRARY_PATH", path);
return 0;
}
#endif // defined(PLATFORM_X64) && defined(ENGINE_CSGO)
#if defined(ENGINE_L4D)
/* Replace .so extension with .dylib */
static inline const char *FixLibraryExt(const char *pModuleName, char *buffer, size_t maxLength)
{
size_t origLen = strlen(pModuleName);
/*
* 3 extra chars are needed to do this.
*
* NOTE: 2nd condition is NOT >= due to null terminator.
*/
if (origLen > 3 && maxLength > origLen + 3)
{
size_t baseLen = origLen - 3;
if (strncmp(pModuleName + baseLen, ".so", 3) == 0)
{
/* Yes, this should be safe now */
memcpy(buffer, pModuleName, baseLen);
strcpy(buffer + baseLen, ".dylib");
return buffer;
}
}
return pModuleName;
}
#endif // ENGINE_L4D
#if defined(ENGINE_L4D) || defined(ENGINE_CSGO)
/* void CMaterialSystem::SetShaderAPI(const char *) */
DETOUR_DECL_MEMBER1(CMaterialSystem_SetShaderAPI, void, const char *, pModuleName)
{
#if defined(ENGINE_L4D)
char module[PATH_MAX];
pModuleName = FixLibraryExt(pModuleName, module, sizeof(module));
DETOUR_MEMBER_CALL(CMaterialSystem_SetShaderAPI)(pModuleName);
#elif defined(ENGINE_CSGO)
CreateInterfaceFn shaderFactory;
g_EmptyShader = dlopen(pModuleName, RTLD_NOW);
if (!g_EmptyShader)
{
printf("Failed to load shader API from %s\n", pModuleName);
detSetShaderApi->Destroy();
return;
}
shaderFactory = (CreateInterfaceFn)dlsym(g_EmptyShader, "CreateInterface");
if (!shaderFactory)
{
printf("Failed to get shader factory from %s\n", pModuleName);
dlclose(g_EmptyShader);
g_EmptyShader = NULL;
detSetShaderApi->Destroy();
return;
}
*g_pShaderAPI = shaderFactory("ShaderApi029", NULL);
*g_pShaderDevice = shaderFactory("ShaderDevice001", NULL);
*g_pShaderDeviceMgr = shaderFactory("ShaderDeviceMgr001", NULL);
*g_pShaderShadow = shaderFactory("ShaderShadow010", NULL);
*g_pHWConfig = shaderFactory("MaterialSystemHardwareConfig013", NULL);
*g_pShaderAPIDX8 = *g_pShaderAPI;
*g_pShaderDeviceDx8 = *g_pShaderDevice;
*g_pShaderDeviceMgrDx8 = *g_pShaderDeviceMgr;
*g_pShaderShadowDx8 = *g_pShaderShadow;
#endif
/* We can get rid of this now */
detSetShaderApi->Destroy();
}
#endif // ENGINE_L4D || ENGINE_CSGO
#if defined(ENGINE_OBV) || defined(ENGINE_OBV_SDL) || defined(ENGINE_GMOD) || defined(ENGINE_L4D2) || defined(ENGINE_ND)
DETOUR_DECL_STATIC2(Sys_FsLoadModule, void *, const char *, pModuleName, int, flags)
{
if (strstr(pModuleName, "chromehtml"))
return NULL;
else
return DETOUR_STATIC_CALL(Sys_FsLoadModule)(pModuleName, flags);
}
#endif
DETOUR_DECL_STATIC1(Sys_LoadModule, void *, const char *, pModuleName)
{
/* Avoid NSAutoreleasepool leaks from libcef */
if (strstr(pModuleName, "chromehtml"))
{
return NULL;
}
#if defined(ENGINE_L4D) || defined(ENGINE_CSGO)
void *handle = NULL;
#if defined(ENGINE_L4D)
char module[PATH_MAX];
pModuleName = FixLibraryExt(pModuleName, module, sizeof(module));
#endif
#if defined(ENGINE_CSGO)
/* The matchmaking_ds lib is not shipped, so replace with matchmaking.dylib */
if (char *libName = strstr(pModuleName, "matchmaking_ds.dylib"))
{
strcpy(libName, "matchmaking.dylib");
return DETOUR_STATIC_CALL(Sys_LoadModule)(pModuleName);
}
#endif
handle = DETOUR_STATIC_CALL(Sys_LoadModule)(pModuleName);
/* We need to install a detour in the materialsystem library, ugh */
if (handle && strstr(pModuleName, "materialsystem.dylib"))
{
Dl_info info;
void *materialFactory = dlsym(handle, "CreateInterface");
void *setShaderApi = NULL;
if (!materialFactory)
{
printf("Failed to find CreateInterface (%s)\n", dlerror());
return NULL;
}
if (!dladdr(materialFactory, &info) || !info.dli_fbase || !info.dli_fname)
{
printf("Failed to get base address of materialsystem.dylib\n");
dlclose(handle);
return NULL;
}
#if defined(ENGINE_CSGO)
HSGameLib matsys("materialsystem");
/*const char *symbols[] = {
"_ZN15CMaterialSystem12SetShaderAPIEPKc",
"g_pShaderAPI",
"g_pShaderAPIDX8",
"g_pShaderDevice",
"g_pShaderDeviceDx8",
"g_pShaderDeviceMgr",
"g_pShaderDeviceMgrDx8",
"g_pShaderShadow",
"g_pShaderShadowDx8",
"g_pHWConfig",
nullptr
};
int notFound = matsys.ResolveHiddenSymbols(material_syms_, symbols);
if (notFound > 0)
{
printf("Failed to find symbols for materialsystem.dylib\n");
dumpUnknownSymbols(material_syms_, ARRAY_LENGTH(material_syms_));
return NULL;
}
setShaderApi = material_syms_[0].address;
#if defined(ENGINE_CSGO) || defined(ENGINE_INS)
g_pShaderAPI = (void **)material_syms_[1].address;
g_pShaderAPIDX8 = (void **)material_syms_[2].address;
g_pShaderDevice = (void **)material_syms_[3].address;
g_pShaderDeviceDx8 = (void **)material_syms_[4].address;
g_pShaderDeviceMgr = (void **)material_syms_[5].address;
g_pShaderDeviceMgrDx8 = (void **)material_syms_[6].address;
g_pShaderShadow = (void **)material_syms_[7].address;
g_pShaderShadowDx8 = (void **)material_syms_[8].address;
g_pHWConfig = (void **)material_syms_[9].address;
#endif */
void ***vptr = (void ***)matsys.GetFactory()("VMaterialSystem080", NULL);
void **vtable = *vptr;
setShaderApi = vtable[10]; // IMaterialSystem::SetShaderAPI
detSetShaderApi = DETOUR_CREATE_MEMBER(CMaterialSystem_SetShaderAPI, setShaderApi);
if (!detSetShaderApi)
{
printf("Failed to create detour for CMaterialSystem::SetShaderAPI\n");
return NULL;
}
detSetShaderApi->EnableDetour();
// g_pShaderAPI: CShaderDeviceBase::GetWindowSize
{
const char sig[] = "\x55\x48\x89\xE5\x48\x8B\x3D\x2A\x2A\x2A\x2A\x48\x8B\x07\x48\x8B\x80\xA8\x00\x00\x00";
const int offset = 7;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pShaderAPI\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pShaderAPI = (void **)(p + offset + 4 + shaderOffs);
}
// g_pShaderAPIDX8: CMatRenderContext::SetLights
{
const char sig[] = "\x55\x48\x89\xE5\x48\x8D\x05\x2A\x2A\x2A\x2A\x48\x8B\x38\x48\x8B\x07\x48\x8B\x80\x38\x03\x00\x00";
const int offset = 7;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pShaderAPIDX8\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pShaderAPIDX8 = (void **)(p + offset + 4 + shaderOffs);
}
// g_pShaderDevice: CMatRenderContext::DestoryStaticMesh
{
const char sig[] = "\x55\x48\x89\xE5\x48\x8D\x05\x2A\x2A\x2A\x2A\x48\x8B\x38\x48\x8B\x07\x48\x8B\x80\xC0\x00\x00\x00";
const int offset = 7;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pShaderDevice\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pShaderDevice = (void **)(p + offset + 4 + shaderOffs);
}
// g_pShaderDeviceDx8: CDynamicMeshDX8::HasEnoughRoom
{
const char sig[] = "\x55\x48\x89\xE5\x41\x57\x41\x56\x53\x50\x41\x89\xD6\x89\xF3\x49\x89\xFF\x48\x8D\x05\x2A\x2A\x2A\x2A\x48\x8B\x38\x48\x8B\x07\xFF\x90\x30\x01\x00\x00";
const int offset = 21;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pShaderDeviceDx8\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pShaderDeviceDx8 = (void **)(p + offset + 4 + shaderOffs);
}
// g_pShaderDeviceMgr: CMaterialSystem::GetModeCount
{
const char sig[] = "\x55\x48\x89\xE5\x48\x8D\x05\x2A\x2A\x2A\x2A\x48\x8B\x38\x48\x8B\x07\x48\x8B\x40\x60";
const int offset = 7;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pShaderDeviceMgr\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pShaderDeviceMgr = (void **)(p + offset + 4 + shaderOffs);
}
// g_pShaderDeviceMgrDx8: CShaderAPIDx8::OnDeviceInit
{
const char sig[] = "\x55\x48\x89\xE5\x41\x57\x41\x56\x53\x50\x48\x89\xFB\xE8\x2A\x2A\x2A\x2A\x48\x8D\x05\x2A\x2A\x2A\x2A\x48\x8B\x38\x48\x8B\x07\x8B\x73\x08";
const int offset = 21;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pShaderDeviceMgrDx8\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pShaderDeviceMgrDx8 = (void **)(p + offset + 4 + shaderOffs);
}
// g_pShaderShadow: CShaderSystem::TakeSnapshot
{
const char sig[] = "\x55\x48\x89\xE5\x41\x57\x41\x56\x53\x50\x49\x89\xFF\x48\x8D\x05\x2A\x2A\x2A\x2A\x48\x8B\x38\x48\x8B\x07\xFF\x90\x88\x00\x00\x00\x83\xF8\x5C\x7C\x33\x4C\x8D\x35\x2A\x2A\x2A\x2A\x49";
const int offset = 40;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pShaderShadow\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pShaderShadow = (void **)(p + offset + 4 + shaderOffs);
}
// g_pShaderShadowDx8: CShaderAPIDx8::ClearSnapshots
{
const char sig[] = "\x55\x48\x89\xE5\x41\x56\x53\x48\x89\xFB\x4C\x8D\xB3\x78\x34\x00\x00\x4C\x89\xF7\xE8\x2A\x2A\x2A\x2A\x48\x8D\x05\x2A\x2A\x2A\x2A\x48";
const int offset = 28;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pShaderShadowDx8\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pShaderShadowDx8 = (void **)(p + offset + 4 + shaderOffs);
}
// g_pHWConfig: CMaterialSystem::SupportsHDRMode
{
const char sig[] = "\x55\x48\x89\xE5\x48\x8B\x3D\x2A\x2A\x2A\x2A\x48\x8B\x07\x48\x8B\x80\x68\x01\x00\x00";
const int offset = 7;
char *p = (char *)matsys.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature to locate g_pHWConfig\n");
return nullptr;
}
uint32_t shaderOffs = *(uint32_t *)(p + offset);
g_pHWConfig = (void **)(p + offset + 4 + shaderOffs);
}
return handle;
#else
setShaderApi = SymbolAddr<void *>(info.dli_fbase, material_syms, 0);
detSetShaderApi = DETOUR_CREATE_MEMBER(CMaterialSystem_SetShaderAPI, setShaderApi);
if (!detSetShaderApi)
{
printf("Failed to create detour for CMaterialSystem::SetShaderAPI\n");
return NULL;
}
detSetShaderApi->EnableDetour();
return handle;
#endif
}
#endif
return DETOUR_STATIC_CALL(Sys_LoadModule)(pModuleName);
}
DETOUR_DECL_STATIC1(Plat_DebugString, void, const char *, str)
{
/* Do nothing. K? */
}
DETOUR_DECL_STATIC2(Sys_SteamLoadModule, void *, const char *, pModuleName, int, flags)
{
if (strstr(pModuleName, "steamservice"))
return NULL;
else
return DETOUR_STATIC_CALL(Sys_SteamLoadModule)(pModuleName, flags);
}
#if defined(ENGINE_GMOD)
struct GameDepotInfo
{
int unknown; // Appears to always be 14
int depotid; // Game App ID
const char *title; // Game Name
const char *folder; // Game Directory
bool mounted; // Determines if game content is mounted
bool vpk; // Seems to flag games with VPK files before Steam3 became prevalent
bool owned; // Determines if game is owned
bool installed; // Determines if game is installed
};
typedef std::list<GameDepotInfo> &(*DepotGetList)(void *);
typedef void (*DepotLoad)(void *);
typedef void (*FillDepotList)(std::list<GameDepotInfo> &);
DepotGetList g_GetDepotList;
DepotLoad g_LoadDepots;
FillDepotList g_FillDepotList;
DETOUR_DECL_MEMBER0(GameDepotSys_Setup, void)
{
static bool initialized = false;
if (!initialized)
{
initialized = true;
/* Fill depot list with supported games */
std::list<GameDepotInfo> &depots = g_GetDepotList(this);
g_FillDepotList(depots);
for (std::list<GameDepotInfo>::iterator i = depots.begin(); i != depots.end(); i++)
{
/* Dedicated servers on Linux and Windows set these for all games */
i->owned = 1;
i->installed = 1;
}
g_LoadDepots(this);
}
}
DETOUR_DECL_MEMBER2(GameDepotSys_Mount, bool, GameDepotInfo &, info, bool, unknown)
{
return true;
}
#endif
#if defined(ENGINE_INS) || defined(ENGINE_DOI)
DETOUR_DECL_MEMBER0(CSDLMgr_Init, int)
{
return 1;
}
#endif // defined(ENGINE_INS) || defined(ENGINE_DOI)
bool BlockSteamService()
{
void *steamclient = dlopen("steamclient.dylib", RTLD_LAZY);
if (!steamclient)
{
printf("Failed to get handle for steamclient.dylib (%s)\n", dlerror());
return false;
}
void *steamclientFactory = dlsym(steamclient, "CreateInterface");
if (!steamclientFactory)
{
printf("Failed to find steamclient CreateInterface (%s)\n", dlerror());
dlclose(steamclient);
return false;
}
Dl_info info;
if (!dladdr(steamclientFactory, &info) || !info.dli_fbase || !info.dli_fname)
{
printf("Failed to get base address of steamclient.dylib\n");
dlclose(steamclient);
return false;
}
void *steamLoadModule = SymbolAddr<void *>(info.dli_fbase, steamclient_syms, 0);
detSteamLoadModule = DETOUR_CREATE_STATIC(Sys_SteamLoadModule, steamLoadModule);
if (detSteamLoadModule)
{
detSteamLoadModule->EnableDetour();
}
else
{
printf("Failed to create detour for steamclient`Sys_LoadModule!\n");
dlclose(steamclient);
return false;
}
dlclose(steamclient);
return true;
}
#if defined(ENGINE_CSGO)
DETOUR_DECL_MEMBER1(CSys_LoadModules, int, void *, appsys)
{
/* Preload filesystem_stdio to install a detour */
void *loadModule = NULL;
HSGameLib fs("bin/osx64/filesystem_stdio");
if (fs.IsLoaded())
{
//loadModule = fs.ResolveHiddenSymbol("_Z14Sys_LoadModulePKc");
const char sig[] = "\x55\x48\x89\xE5\x41\x57\x41\x56\x41\x54\x53\x48\x81\xEC\x10\x08\x00\x00";
loadModule = fs.FindPattern(sig, sizeof(sig) - 1);
if (!loadModule)
{
printf("Failed to find signature for filesystem_stdio.dylib\n");
printf("_Z14Sys_LoadModulePKc");
return 0;
}
if (loadModule)
{
detFsLoadModule = DETOUR_CREATE_STATIC(Sys_LoadModule, loadModule);
if (detFsLoadModule)
{
detFsLoadModule->EnableDetour();
}
else
{
printf("Failed to create detour for filesystem_stdio`Sys_LoadModule!\n");
return 0;
}
}
}
else
{
printf("Failed to preload filesystem_stdio\n");
return 0;
}
int ret = DETOUR_MEMBER_CALL(CSys_LoadModules)(appsys);
typedef void *(*FindSystem_t)(void *, const char *);
FindSystem_t AppSysGroup_FindSystem = (FindSystem_t)dedicated_syms_[1].address;
void *sdl = AppSysGroup_FindSystem(appsys, "SDLMgrInterface001");
HSGameLib engine("engine");
if (!engine.IsLoaded())
{
printf("Failed to load existing copy of engine.dylib\n");
return 0;
}
// CGame::GetMainWindowAddress
const char sig[] = "\x55\x48\x89\xE5\x53\x50\x48\x89\xFB\x48\x8D\x05\x2A\x2A\x2A\x2A\x48\x8B\x38\x48\x8B\x07\xFF\x90\x08\x01\x00\x00";
const int offset = 12;
//void **engineSdl = engine.ResolveHiddenSymbol<void **>("g_pLauncherMgr");
char *p = (char *)engine.FindPattern(sig, sizeof(sig) - 1);
if (!p)
{
printf("Failed to find signature for engine.dylib\n");
printf("g_pLauncherMgr");
return 0;
}
uint32_t launcherOffs = *(uint32_t *)(p + offset);
void **engineSdl = (void **)(p + offset + 4 + launcherOffs);
*engineSdl = sdl;
return ret;
}
#else
/* int CSys::LoadModules(CDedicatedAppSystemGroup *) */
DETOUR_DECL_MEMBER1(CSys_LoadModules, int, void *, appsys)
{
#if !defined(ENGINE_OBV_SDL)
Dl_info info;
void *launcherMain;
void *pCocoaMgr;
#if !defined(ENGINE_INS) && !defined(ENGINE_DOI)
void *engine;
void *engineFactory;
void **engineCocoa;
#endif
int ret;
typedef void (*AddSystem_t)(void *, void *, const char *);
AddSystem_t AppSysGroup_AddSystem;
#if defined(ENGINE_INS) || defined(ENGINE_DOI)
typedef void *(*CreateSDLMgr_t)(void);
CreateSDLMgr_t CreateSDLMgr;
void *sdlInit;
#endif
g_Launcher = dlopen("launcher.dylib", RTLD_NOW);
if (!g_Launcher)
{
printf("Failed to open launcher.dylib (%s)\n", dlerror());
return false;
}
launcherMain = dlsym(g_Launcher, "LauncherMain");
if (!launcherMain)
{
printf("Failed to find launcher entry point (%s)\n", dlerror());
dlclose(g_Launcher);
g_Launcher = NULL;
return false;
}
memset(&info, 0, sizeof(Dl_info));
if (!dladdr(launcherMain, &info) || !info.dli_fbase || !info.dli_fname)
{
printf("Failed to get base address of launcher.dylib\n");
dlclose(g_Launcher);
g_Launcher = NULL;
return false;
}
AppSysGroup_AddSystem = SymbolAddr<AddSystem_t>(info.dli_fbase, launcher_syms, 0);
#if defined(ENGINE_INS) || defined(ENGINE_DOI)
CreateSDLMgr = SymbolAddr<CreateSDLMgr_t>(info.dli_fbase, launcher_syms, 1);
sdlInit = SymbolAddr<void *>(info.dli_fbase, launcher_syms, 2);
detSdlInit = DETOUR_CREATE_MEMBER(CSDLMgr_Init, sdlInit);
if (detSdlInit)
{
detSdlInit->EnableDetour();
}
else
{
printf("Failed to create detour for CSDLMgr::Init!\n");
dlclose(g_Launcher);
g_Launcher = NULL;
return false;
}
pCocoaMgr = CreateSDLMgr();
#else
pCocoaMgr = SymbolAddr<void *>(info.dli_fbase, launcher_syms, 1);
#endif
/* The engine and material system expect this interface to be available */
#if defined(ENGINE_OBV_SDL) || defined(ENGINE_INS) || defined(ENGINE_DOI)
AppSysGroup_AddSystem(appsys, pCocoaMgr, "SDLMgrInterface001");
#else
AppSysGroup_AddSystem(appsys, pCocoaMgr, "CocoaMgrInterface006");
#endif
#if defined(ENGINE_OBV) || defined(ENGINE_OBV_SDL) || defined(ENGINE_GMOD)
/* Preload filesystem_stdio to install a detour */
void *loadModule = NULL;
void *fs = dlopen("bin/filesystem_stdio.dylib", RTLD_NOW);
if (fs)
{
void *factory = dlsym(fs, "CreateInterface");
memset(&info, 0, sizeof(Dl_info));
if (dladdr(factory, &info) && info.dli_fbase && info.dli_fname)
{
loadModule = SymbolAddr<void *>(info.dli_fbase, fsstdio_syms, 0);
if (loadModule != info.dli_fbase)
{
detFsLoadModule = DETOUR_CREATE_STATIC(Sys_FsLoadModule, loadModule);
if (detFsLoadModule)
{
detFsLoadModule->EnableDetour();
}
}
#if defined(ENGINE_GMOD)
void *depotSetup, *depotMount;
depotSetup = SymbolAddr<void *>(info.dli_fbase, fsstdio_syms, 1);
g_GetDepotList = SymbolAddr<DepotGetList>(info.dli_fbase, fsstdio_syms, 2);
g_LoadDepots = SymbolAddr<DepotLoad>(info.dli_fbase, fsstdio_syms, 3);
depotMount = SymbolAddr<void *>(info.dli_fbase, fsstdio_syms, 4);
g_FillDepotList = SymbolAddr<FillDepotList>(info.dli_fbase, fsstdio_syms, 5);
detDepotSetup = DETOUR_CREATE_MEMBER(GameDepotSys_Setup, depotSetup);
if (detDepotSetup)
{
detDepotSetup->EnableDetour();
}
else
{
printf("Failed to create detour for GameDepot::System::Setup!\n");
dlclose(fs);
return false;