RuntimePatchingSystem/RuntimePatchingSystem.cpp at main · gynt/RuntimePatchingSystem · GitHub

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#include"framework.h"
#include<iostream>
#include<sstream>
#include<set>
#include<map>
#include<assert.h>
#include<vector>

#include"RuntimePatchingSystem.h"
#include"CodeFunctions.h"
#include"MemoryFunctions.h"
#include"UtilityFunctions.h"
#include"LibraryFunctions.h"


staticintl_my_print(lua_State* L) {
int n = lua_gettop(L); /* number of arguments */
int i;
for (i = 1; i <= n; i++) { /* for each argument */
size_t l;
constchar* s = luaL_tolstring(L, i, &l); /* convert it to string */
if (i > 1) /* not the first element? */
lua_writestring("\t", 1); /* add a tab before it */
lua_writestring(s, l); /* print it */
lua_pop(L, 1); /* pop result */
	}
lua_writeline();
return0;
}

staticconststructluaL_Reg printlib[] = {
 {"print", l_my_print},
 {NULL, NULL} /* end of array */
};

conststructluaL_RegRPS_LIB[] = {
	{"hookCode", luaHookCode},
	{"callOriginal", luaCallMachineCode},
	{"exposeCode", luaExposeCode},
	{"detourCode", luaDetourCode},

	{"allocate", luaAllocate},
	{"deallocate", luaDeallocate},
	{"allocateCode", luaAllocateRWE},
	{"deallocateCode", luaDeallocateRWE},

	{"loadLibraryA", luaLoadLibraryA},
	{"getLibraryProcAddressA", luaGetLibraryProcAddressA},
	{"getProcAddress", luaGetProcAddress},

	{"readByte", luaReadByte},
	{"readSmallInteger", luaReadSmallInteger},
	{"readInteger", luaReadInteger},
	{"readString", luaReadString},
	{"readBytes", luaReadBytes},

	{"writeByte", luaWriteByte},
	{"writeSmallInteger", luaWriteSmallInteger},
	{"writeInteger", luaWriteInteger},
	{"writeString", luaWriteString},
	{"writeBytes", luaWriteBytes},

	{"writeCode", luaWriteCode},

	{"copyMemory", luaMemCpy},
	{"setMemory", luaMemSet},

	{"registerString", registerString},

	{"scanForAOB", luaScanForAOB},
	{NULL, NULL} /* end of array */
};

staticvoidsetConstantsToTable(lua_State* L) {
lua_pushinteger(L, 0);
lua_setfield(L, -2, "CDECL");

lua_pushinteger(L, 1);
lua_setfield(L, -2, "THISCALL");

lua_pushinteger(L, 2);
lua_setfield(L, -2, "STDCALL");

lua_pushinteger(L, 0);
lua_setfield(L, -2, "cdecl");

lua_pushinteger(L, 1);
lua_setfield(L, -2, "thiscall");

lua_pushinteger(L, 2);
lua_setfield(L, -2, "stdcall");
}

staticintmakeLibWithConstants(lua_State* L) {
// stack:
luaL_newlib(L, RPS_LIB);

// stack: lib table
lua_createtable(L, 0, 0);
// stack: lib table, constants

// stack: lib table, constants
lua_createtable(L, 0, 0);
// stack: lib table, constants, callingConventions

setConstantsToTable(L);

// stack: lib table, constants, callingConventions
lua_setfield(L, -2, "callingConventions");
// stack: lib table, constants

// stack: lib table, constants
lua_setfield(L, -2, "constants");
// stack: lib table

return1;
}


RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializePrintRedirect(lua_State* L) {
lua_pushglobaltable(L);
luaL_setfuncs(L, printlib, 0);
lua_pop(L, 1);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializePrintRedirect() {
returnRPS_initializePrintRedirect(LC);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializeLuaAPI(lua_State* L, std::string apiNamespace) {
if (apiNamespace == "_G" || apiNamespace == "global") {
lua_pushglobaltable(L);
luaL_setfuncs(L, RPS_LIB, 0);
setConstantsToTable(L);
lua_pop(L, 1);
	}
elseif (apiNamespace.empty() || apiNamespace.size() == 0) {
makeLibWithConstants(L); // the table is left intentionally on the stack.
	}
else {
lua_pushglobaltable(L);
makeLibWithConstants(L);
lua_setfield(L, -1, apiNamespace.c_str());
lua_pop(L, 1);
	}
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializeLuaAPI(std::string apiNamespace) {
returnRPS_initializeLuaAPI(LC, apiNamespace);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializeLuaAPI(lua_State* L) {
returnRPS_initializeLuaAPI(L, "global");
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializeLuaAPI() {
returnRPS_initializeLuaAPI(LC);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_setupPackagePath(lua_State* L, std::string packagePath) {
lua_getglobal(L, "package");
lua_pushstring(L, "path");
lua_pushstring(L, packagePath.c_str());
lua_settable(L, -3);
lua_pop(L, 1);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_setupPackagePath(std::string packagePath) {
returnRPS_setupPackagePath(LC, packagePath);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_setupPackageCPath(lua_State* L, std::string packageCPath) {
lua_getglobal(L, "package");
lua_pushstring(L, "cpath");
lua_pushstring(L, packageCPath.c_str());
lua_settable(L, -3);
lua_pop(L, 1);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_setupPackageCPath(std::string packageCPath) {
returnRPS_setupPackageCPath(LC, packageCPath);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_runBootstrapFile(lua_State* L, std::string bootstrapFilePath) {
int stackSize = lua_gettop(L);

int r = luaL_dofile(L, bootstrapFilePath.c_str());

if (r == LUA_OK) {
//std::cout << "[LUA]: loaded LUA API." << std::endl;

lua_pop(L, lua_gettop(L) - stackSize);
	}
else {
size_t length;
constchar* errormsg = lua_tolstring(L, -1, &length);
if (errormsg != NULL) {
 std::cout << "[RPS]: failed to execute lua file: " << errormsg << std::endl;
lua_pop(L, 1); // pop off the error message;
 }
else {
 std::cout << "[RPS]: failed to execute lua file: lua error code: " << r << std::endl;
 }

	}
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_runBootstrapFile(std::string bootstrapFilePath) {
returnRPS_runBootstrapFile(LC, bootstrapFilePath);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializeLua() {
LC = luaL_newstate();
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializeLuaOpenLibs() {
luaL_openlibs(LC);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initializeLuaOpenBase() {
luaL_requiref(LC, "base", luaopen_base, true);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initialize(std::string bootstrapFilePath, bool initializePrintRedirect) {
RPS_initializeLua();

RPS_initializeLuaOpenLibs();

if (initializePrintRedirect) RPS_initializePrintRedirect(LC);

RPS_initializeLuaAPI(LC, "global");


RPS_runBootstrapFile(LC, bootstrapFilePath);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_initialize(std::string bootstrapFilePath) {
returnRPS_initialize(bootstrapFilePath, true);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_deinitialize() {
lua_close(LC);
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_executeSnippet(std::string code) {
int before = lua_gettop(LC);
int r = luaL_dostring(LC, code.c_str());
if (r == LUA_OK) {
int after = lua_gettop(LC);
if (after - before > 0) {
for (int i = before; i < after; i++) { /* for each argument */
size_t l;
constchar* s = luaL_tolstring(LC, i, &l); /* convert it to string */
if (i > 1) /* not the first element? */
lua_writestring("\t", 1); /* add a tab before it */
lua_writestring(s, l); /* print it */
lua_pop(LC, 1); /* pop result */
 }
lua_writeline();
 }
lua_pop(LC, after - before);
	}
else {
 std::string errormsg = lua_tostring(LC, -1);
 std::cout << "[RPS]: error in lua snippet: " << errormsg << std::endl;
lua_pop(LC, 1); // pop off the error message;
	}
}

RUNTIMEPATCHINGSYSTEM_APIintRPS_getCurrentStackSize() {
returnlua_gettop(LC);
}

RUNTIMEPATCHINGSYSTEM_API lua_State* RPS_getLuaState() {
returnLC;
}

RUNTIMEPATCHINGSYSTEM_APIvoidRPS_setLuaState(lua_State* value) {
LC = value;
}

extern"C"RUNTIMEPATCHINGSYSTEM_APIintluaopen_RPS(lua_State * L) {
RPS_setLuaState(L);
makeLibWithConstants(L);

return1;
}