From 27afb0ba38dcf0e74a4d09ba43e73261542b8e96 Mon Sep 17 00:00:00 2001 From: Emma Miler Date: Mon, 19 Dec 2022 19:32:16 +0100 Subject: Restructuring (#365) * Remove launcher proxy * Restructuring * More restructuring * Fix include dirs * Fix merge * Remove clang thing * Filters * Oops --- NorthstarDLL/hooks.h | 311 --------------------------------------------------- 1 file changed, 311 deletions(-) delete mode 100644 NorthstarDLL/hooks.h (limited to 'NorthstarDLL/hooks.h') diff --git a/NorthstarDLL/hooks.h b/NorthstarDLL/hooks.h deleted file mode 100644 index f47791fb..00000000 --- a/NorthstarDLL/hooks.h +++ /dev/null @@ -1,311 +0,0 @@ -#pragma once -#include "memory.h" - -#include -#include - -void InstallInitialHooks(); - -typedef void (*DllLoadCallbackFuncType)(CModule moduleAddress); -void AddDllLoadCallback(std::string dll, DllLoadCallbackFuncType callback, std::string tag = "", std::vector reliesOn = {}); -void AddDllLoadCallbackForDedicatedServer( - std::string dll, DllLoadCallbackFuncType callback, std::string tag = "", std::vector reliesOn = {}); -void AddDllLoadCallbackForClient( - std::string dll, DllLoadCallbackFuncType callback, std::string tag = "", std::vector reliesOn = {}); - -void CallAllPendingDLLLoadCallbacks(); - -// new dll load callback stuff -enum class eDllLoadCallbackSide -{ - UNSIDED, - CLIENT, - DEDICATED_SERVER -}; - -class __dllLoadCallback -{ - public: - __dllLoadCallback() = delete; - __dllLoadCallback( - eDllLoadCallbackSide side, - const std::string dllName, - DllLoadCallbackFuncType callback, - std::string uniqueStr, - std::string reliesOn); -}; - -#define __CONCAT3(x, y, z) x##y##z -#define CONCAT3(x, y, z) __CONCAT3(x, y, z) -#define __CONCAT2(x, y) x##y -#define CONCAT2(x, y) __CONCAT2(x, y) -#define __STR(s) #s - -// adds a callback to be called when a given dll is loaded, for creating hooks and such -#define __ON_DLL_LOAD(dllName, side, uniquestr, reliesOn, args) \ - void CONCAT2(__dllLoadCallback, uniquestr) args; \ - namespace \ - { \ - __dllLoadCallback CONCAT2(__dllLoadCallbackInstance, __LINE__)( \ - side, dllName, CONCAT2(__dllLoadCallback, uniquestr), __STR(uniquestr), reliesOn); \ - } \ - void CONCAT2(__dllLoadCallback, uniquestr) args - -#define ON_DLL_LOAD(dllName, uniquestr, args) __ON_DLL_LOAD(dllName, eDllLoadCallbackSide::UNSIDED, uniquestr, "", args) -#define ON_DLL_LOAD_RELIESON(dllName, uniquestr, reliesOn, args) \ - __ON_DLL_LOAD(dllName, eDllLoadCallbackSide::UNSIDED, uniquestr, __STR(reliesOn), args) -#define ON_DLL_LOAD_CLIENT(dllName, uniquestr, args) __ON_DLL_LOAD(dllName, eDllLoadCallbackSide::CLIENT, uniquestr, "", args) -#define ON_DLL_LOAD_CLIENT_RELIESON(dllName, uniquestr, reliesOn, args) \ - __ON_DLL_LOAD(dllName, eDllLoadCallbackSide::CLIENT, uniquestr, __STR(reliesOn), args) -#define ON_DLL_LOAD_DEDI(dllName, uniquestr, args) __ON_DLL_LOAD(dllName, eDllLoadCallbackSide::DEDICATED_SERVER, uniquestr, "", args) -#define ON_DLL_LOAD_DEDI_RELIESON(dllName, uniquestr, reliesOn, args) \ - __ON_DLL_LOAD(dllName, eDllLoadCallbackSide::DEDICATED_SERVER, uniquestr, __STR(reliesOn), args) - -// new macro hook stuff -class __autohook; - -class __fileAutohook -{ - public: - std::vector<__autohook*> hooks; - - void Dispatch(); - void DispatchForModule(const char* pModuleName); -}; - -// initialise autohooks for this file -#define AUTOHOOK_INIT() \ - namespace \ - { \ - __fileAutohook __FILEAUTOHOOK; \ - } - -// dispatch all autohooks in this file -#define AUTOHOOK_DISPATCH() __FILEAUTOHOOK.Dispatch(); - -#define AUTOHOOK_DISPATCH_MODULE(moduleName) __FILEAUTOHOOK.DispatchForModule(__STR(moduleName)); - -class __autohook -{ - public: - enum AddressResolutionMode - { - OFFSET_STRING, // we're using a string that of the format dllname.dll + offset - ABSOLUTE_ADDR, // we're using an absolute address, we don't need to process it at all - PROCADDRESS // resolve using GetModuleHandle and GetProcAddress - }; - - char* pFuncName; - - LPVOID pHookFunc; - LPVOID* ppOrigFunc; - - // address resolution props - AddressResolutionMode iAddressResolutionMode; - char* pAddrString = nullptr; // for OFFSET_STRING - LPVOID iAbsoluteAddress = nullptr; // for ABSOLUTE_ADDR - char* pModuleName; // for PROCADDRESS - char* pProcName; // for PROCADDRESS - - public: - __autohook() = delete; - - __autohook(__fileAutohook* autohook, const char* funcName, LPVOID absoluteAddress, LPVOID* orig, LPVOID func) - : pHookFunc(func), ppOrigFunc(orig), iAbsoluteAddress(absoluteAddress) - { - iAddressResolutionMode = ABSOLUTE_ADDR; - - const int iFuncNameStrlen = strlen(funcName) + 1; - pFuncName = new char[iFuncNameStrlen]; - memcpy(pFuncName, funcName, iFuncNameStrlen); - - autohook->hooks.push_back(this); - } - - __autohook(__fileAutohook* autohook, const char* funcName, const char* addrString, LPVOID* orig, LPVOID func) - : pHookFunc(func), ppOrigFunc(orig) - { - iAddressResolutionMode = OFFSET_STRING; - - const int iFuncNameStrlen = strlen(funcName) + 1; - pFuncName = new char[iFuncNameStrlen]; - memcpy(pFuncName, funcName, iFuncNameStrlen); - - const int iAddrStrlen = strlen(addrString) + 1; - pAddrString = new char[iAddrStrlen]; - memcpy(pAddrString, addrString, iAddrStrlen); - - autohook->hooks.push_back(this); - } - - __autohook(__fileAutohook* autohook, const char* funcName, const char* moduleName, const char* procName, LPVOID* orig, LPVOID func) - : pHookFunc(func), ppOrigFunc(orig) - { - iAddressResolutionMode = PROCADDRESS; - - const int iFuncNameStrlen = strlen(funcName) + 1; - pFuncName = new char[iFuncNameStrlen]; - memcpy(pFuncName, funcName, iFuncNameStrlen); - - const int iModuleNameStrlen = strlen(moduleName) + 1; - pModuleName = new char[iModuleNameStrlen]; - memcpy(pModuleName, moduleName, iModuleNameStrlen); - - const int iProcNameStrlen = strlen(procName) + 1; - pProcName = new char[iProcNameStrlen]; - memcpy(pProcName, procName, iProcNameStrlen); - - autohook->hooks.push_back(this); - } - - ~__autohook() - { - delete[] pFuncName; - - if (pAddrString) - delete[] pAddrString; - - if (pModuleName) - delete[] pModuleName; - - if (pProcName) - delete[] pProcName; - } - - void Dispatch() - { - LPVOID targetAddr = nullptr; - - // determine the address of the function we're hooking - switch (iAddressResolutionMode) - { - case ABSOLUTE_ADDR: - { - targetAddr = iAbsoluteAddress; - break; - } - - case OFFSET_STRING: - { - // in the format server.dll + 0xDEADBEEF - int iDllNameEnd = 0; - for (; !isspace(pAddrString[iDllNameEnd]) && pAddrString[iDllNameEnd] != '+'; iDllNameEnd++) - ; - - char* pModuleName = new char[iDllNameEnd + 1]; - memcpy(pModuleName, pAddrString, iDllNameEnd); - pModuleName[iDllNameEnd] = '\0'; - - // get the module address - const HMODULE pModuleAddr = GetModuleHandleA(pModuleName); - - if (!pModuleAddr) - break; - - // get the offset string - uintptr_t iOffset = 0; - - int iOffsetBegin = iDllNameEnd; - int iOffsetEnd = strlen(pAddrString); - - // seek until we hit the start of the number offset - for (; !(pAddrString[iOffsetBegin] >= '0' && pAddrString[iOffsetBegin] <= '9') && pAddrString[iOffsetBegin]; iOffsetBegin++) - ; - - bool bIsHex = - pAddrString[iOffsetBegin] == '0' && (pAddrString[iOffsetBegin + 1] == 'X' || pAddrString[iOffsetBegin + 1] == 'x'); - if (bIsHex) - iOffset = std::stoi(pAddrString + iOffsetBegin + 2, 0, 16); - else - iOffset = std::stoi(pAddrString + iOffsetBegin); - - targetAddr = (LPVOID)((uintptr_t)pModuleAddr + iOffset); - break; - } - - case PROCADDRESS: - { - targetAddr = GetProcAddress(GetModuleHandleA(pModuleName), pProcName); - break; - } - } - - if (MH_CreateHook(targetAddr, pHookFunc, ppOrigFunc) == MH_OK) - { - if (MH_EnableHook(targetAddr) == MH_OK) - spdlog::info("Enabling hook {}", pFuncName); - else - spdlog::error("MH_EnableHook failed for function {}", pFuncName); - } - else - spdlog::error("MH_CreateHook failed for function {}", pFuncName); - } -}; - -// hook a function at a given offset from a dll to be dispatched with AUTOHOOK_DISPATCH() -#define AUTOHOOK(name, addrString, type, callingConvention, args) \ - type callingConvention CONCAT2(__autohookfunc, name) args; \ - namespace \ - { \ - type(*callingConvention name) args; \ - __autohook CONCAT2(__autohook, __LINE__)( \ - &__FILEAUTOHOOK, __STR(name), __STR(addrString), (LPVOID*)&name, (LPVOID)CONCAT2(__autohookfunc, name)); \ - } \ - type callingConvention CONCAT2(__autohookfunc, name) args - -// hook a function at a given absolute constant address to be dispatched with AUTOHOOK_DISPATCH() -#define AUTOHOOK_ABSOLUTEADDR(name, addr, type, callingConvention, args) \ - type callingConvention CONCAT2(__autohookfunc, name) args; \ - namespace \ - { \ - type(*callingConvention name) args; \ - __autohook \ - CONCAT2(__autohook, __LINE__)(&__FILEAUTOHOOK, __STR(name), addr, (LPVOID*)&name, (LPVOID)CONCAT2(__autohookfunc, name)); \ - } \ - type callingConvention CONCAT2(__autohookfunc, name) args - -// hook a function at a given module and exported function to be dispatched with AUTOHOOK_DISPATCH() -#define AUTOHOOK_PROCADDRESS(name, moduleName, procName, type, callingConvention, args) \ - type callingConvention CONCAT2(__autohookfunc, name) args; \ - namespace \ - { \ - type(*callingConvention name) args; \ - __autohook CONCAT2(__autohook, __LINE__)( \ - &__FILEAUTOHOOK, __STR(name), __STR(moduleName), __STR(procName), (LPVOID*)&name, (LPVOID)CONCAT2(__autohookfunc, name)); \ - } \ - type callingConvention CONCAT2(__autohookfunc, name) \ - args - -class ManualHook -{ - public: - char* pFuncName; - - LPVOID pHookFunc; - LPVOID* ppOrigFunc; - - public: - ManualHook() = delete; - ManualHook(const char* funcName, LPVOID func); - ManualHook(const char* funcName, LPVOID* orig, LPVOID func); - bool Dispatch(LPVOID addr, LPVOID* orig = nullptr); -}; - -// hook a function to be dispatched manually later -#define HOOK(varName, originalFunc, type, callingConvention, args) \ - namespace \ - { \ - type(*callingConvention originalFunc) args; \ - } \ - type callingConvention CONCAT2(__manualhookfunc, varName) args; \ - ManualHook varName = ManualHook(__STR(varName), (LPVOID*)&originalFunc, (LPVOID)CONCAT2(__manualhookfunc, varName)); \ - type callingConvention CONCAT2(__manualhookfunc, varName) args - -#define HOOK_NOORIG(varName, type, callingConvention, args) \ - type callingConvention CONCAT2(__manualhookfunc, varName) args; \ - ManualHook varName = ManualHook(__STR(varName), (LPVOID)CONCAT2(__manualhookfunc, varName)); \ - type callingConvention CONCAT2(__manualhookfunc, varName) \ - args - -void MakeHook(LPVOID pTarget, LPVOID pDetour, void* ppOriginal, const char* pFuncName = ""); -#define MAKEHOOK(pTarget, pDetour, ppOriginal) MakeHook(pTarget, pDetour, ppOriginal, __STR(pDetour)) -- cgit v1.2.3