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author | BobTheBob <32057864+BobTheBob9@users.noreply.github.com> | 2022-10-17 23:26:07 +0100 |
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committer | GitHub <noreply@github.com> | 2022-10-17 23:26:07 +0100 |
commit | 841881af9ea6ec73b1d505d5a8f7c1f766273724 (patch) | |
tree | 91feb40fe810984b59d2d2da440e289370b0a137 /NorthstarDLL/hooks.cpp | |
parent | dc0934d29caacc8da1e7df8b775d24b4e99c381c (diff) | |
download | NorthstarLauncher-841881af9ea6ec73b1d505d5a8f7c1f766273724.tar.gz NorthstarLauncher-841881af9ea6ec73b1d505d5a8f7c1f766273724.zip |
big refactor (#171)v1.10.0-rc1
* use in-file macros rather than global funcs for registering dll load callbacks
* move more things to macros
* fix debug crashes
* move sqvm funcs to sq managers
* get rid of context file
* refactor some squirrel stuff and ingame compilation error message
* move tier0 and playlist funcs to namespaces
* uiscript_reset concommand: don't loop forever if compilation fails
* improve showing console for ui script compile errors
* standardise concommand func naming in c++
* use lambdas for dll load callbacks so intellisense shits itself less
* use cvar change callbacks for unescaping ns_server_name and ns_server_desc
* add proper helpstrings to masterserver cvars
* add cvar help and find
* allow parsing of convar flags from string
* normalise mod fs paths to be lowercase
* move hoststate to its own file and add host_init hooks
* better IsFlagSet def
* replace files in ReadFromCache
* rename g_ModManager to g_pModManager
* formatting changes
* make cvar print work on dedi, move demo fix stuff, add findflags
* add proper map autocompletes and maps command
* formatting changes
* separate gameutils into multiple r2 headers
* Update keyvalues.cpp
* move sqvm funcs into wrappers in the manager class
* remove unnecessary header files
* lots of cleanup and starting moving to new hooking macros
* update more stuff to new hook macros
* rename project folder (:tf: commit log)
* fix up postbuild commands to use relative dir
* almost fully replaced hooking lib
* completely remove old hooking
* add nsprefix because i forgot to include it
* move exploit prevention and limits code out of serverauthentication, and have actual defs for CBasePlayer
* use modular ServerPresence system for registering servers
* add new memory lib
* accidentally pushed broke code oops
* lots of stuff idk
* implement some more prs
* improve rpakfilesystem
* fix line endings on vcxproj
* Revert "fix line endings on vcxproj"
This reverts commit 4ff7d022d2602c2dba37beba8b8df735cf5cd7d9.
* add more prs
* i swear i committed these how are they not there
* Add ability to load Datatables from files (#238)
* first version of kinda working custom datatables
* Fix copy error
* Finish custom datatables
* Fix Merge
* Fix line endings
* Add fallback to rpak when ns_prefere_datatable_from_disk is true
* fix typo
* Bug fixess
* Fix Function Registration hook
* Set convar value
* Fix Client and Ui VM
* enable server auth with ms agian
* Add Filters
* FIx unused import
* Merge remote-tracking branch 'upsteam/bobs-big-refactor-pr' into datatables
Co-authored-by: RoyalBlue1 <realEmail@veryRealURL.com>
* Add some changes from main to refactor (#243)
* Add PR template
* Update CI folder location
* Delete startup args txt files
* Fix line endings (hopefully) (#244)
* Fix line endings (hopefully)
* Fix more line endings
* Update refactor (#250)
* Add PR template
* Update CI folder location
* Delete startup args txt files
* Add editorconfig file (#246)
* Add editorconfig file
It's a cross-editor compatible config file that defines certain editor
behaviour (e.g. adding/removing newline at end of file)
It is supported by major editors like Visual Studio (Code) and by
version control providers like GitHub.
Should end the constant adding/removing of final newline in PRs
* More settings
- unicode by default
- trim newlines
- use tabs for indentation (ugh)
* Ignore folder rename (#245)
* Hot reload banlist on player join (#233)
* added banlist hotreload
* fix formatting
* didnt append, cleared whole file oopsie
* unfuckedunban not rewriting file
* fixed not checking for new line
Co-authored-by: ScureX <47725553+ScureX@users.noreply.github.com>
* Refactor cleanup (#256)
* Fix indentation
* Fix path in clang-format command in readme
* Refactor cleanup (some formatting fixes) (#257)
* Fix some formatting
* More formatting fixes
* add scriptdatatable.cpp rewrite
* Some formatting fixes (#260)
* More formatting stuff (#261)
* various formatting changes and fixes
* Fix changed icon (#264)
* clang format, fix issues with server registration and rpak loading
* fix more formatting
* update postbuild step
* set launcher directory and error on fail creating log files
* change some stuff in exploitfixes
* only unrestrict dev commands when commandline flag is present
* fix issues with cvar flag commit
* fixup command flags better and reformat
* bring up to date with main
* fixup formatting
* improve cvar flag fixup and remove temp thing from findflags
* set serverfilter better
* avoid ptr decay when setting auth token
* add more entity functions
* Fix the MS server registration issues. (#285)
* Port ms presence reporter to std::async
* Fix crash due to std::optional being assigned nullptr.
* Fix formatting.
* Wait 20 seconds if MS returns DUPLICATE_SERVER.
* Change PERSISTENCE_MAX_SIZE to fix player authentication (#287)
The size check added in the refactor was incorrect:
- 56306: expected pdata size based on the pdef
- 512: allowance for trailing junk (r2 adds 137 bytes of trailing junk)
- 100: for some wiggle room
Co-Authored-By: pg9182 <96569817+pg9182@users.noreply.github.com>
* change miscserverscript to use actual entity arguments rather than
player index jank
* Fix token clearing hook (#290)
A certain someone forgot to put an `0x` in front of their hex number, meaning the offset is wrong.
This would cause token to be leaked again
Co-authored-by: Maya <malte.hoermeyer@web.de>
Co-authored-by: RoyalBlue1 <realEmail@veryRealURL.com>
Co-authored-by: GeckoEidechse <40122905+GeckoEidechse@users.noreply.github.com>
Co-authored-by: ScureX <47725553+ScureX@users.noreply.github.com>
Co-authored-by: Erlite <ys.aameziane@gmail.com>
Co-authored-by: Emma Miler <emma.pi@protonmail.com>
Co-authored-by: pg9182 <96569817+pg9182@users.noreply.github.com>
Diffstat (limited to 'NorthstarDLL/hooks.cpp')
-rw-r--r-- | NorthstarDLL/hooks.cpp | 390 |
1 files changed, 272 insertions, 118 deletions
diff --git a/NorthstarDLL/hooks.cpp b/NorthstarDLL/hooks.cpp index 72ae727a..cca1d986 100644 --- a/NorthstarDLL/hooks.cpp +++ b/NorthstarDLL/hooks.cpp @@ -1,61 +1,193 @@ #include "pch.h" -#include "hooks.h" -#include "hookutils.h" -#include "sigscanning.h" #include "dedicated.h" +#include <iostream> #include <wchar.h> #include <iostream> #include <vector> #include <fstream> #include <sstream> #include <filesystem> +#include <Psapi.h> -typedef LPSTR (*GetCommandLineAType)(); -LPSTR GetCommandLineAHook(); +AUTOHOOK_INIT() -typedef HMODULE (*LoadLibraryExAType)(LPCSTR lpLibFileName, HANDLE hFile, DWORD dwFlags); -HMODULE LoadLibraryExAHook(LPCSTR lpLibFileName, HANDLE hFile, DWORD dwFlags); +// called from the ON_DLL_LOAD macros +__dllLoadCallback::__dllLoadCallback( + eDllLoadCallbackSide side, const std::string dllName, DllLoadCallbackFuncType callback, std::string uniqueStr, std::string reliesOn) +{ + // parse reliesOn array from string + std::vector<std::string> reliesOnArray; -typedef HMODULE (*LoadLibraryAType)(LPCSTR lpLibFileName); -HMODULE LoadLibraryAHook(LPCSTR lpLibFileName); + if (reliesOn.length() && reliesOn[0] != '(') + { + reliesOnArray.push_back(reliesOn); + } + else + { + // follows the format (tag, tag, tag) + std::string sCurrentTag; + for (int i = 1; i < reliesOn.length(); i++) + { + if (!isspace(reliesOn[i])) + { + if (reliesOn[i] == ',' || reliesOn[i] == ')') + { + reliesOnArray.push_back(sCurrentTag); + sCurrentTag = ""; + } + else + sCurrentTag += reliesOn[i]; + } + } + } -typedef HMODULE (*LoadLibraryExWType)(LPCWSTR lpLibFileName, HANDLE hFile, DWORD dwFlags); -HMODULE LoadLibraryExWHook(LPCWSTR lpLibFileName, HANDLE hFile, DWORD dwFlags); + switch (side) + { + case eDllLoadCallbackSide::UNSIDED: + { + AddDllLoadCallback(dllName, callback, uniqueStr, reliesOnArray); + break; + } -typedef HMODULE (*LoadLibraryWType)(LPCWSTR lpLibFileName); -HMODULE LoadLibraryWHook(LPCWSTR lpLibFileName); + case eDllLoadCallbackSide::CLIENT: + { + AddDllLoadCallbackForClient(dllName, callback, uniqueStr, reliesOnArray); + break; + } -GetCommandLineAType GetCommandLineAOriginal; -LoadLibraryExAType LoadLibraryExAOriginal; -LoadLibraryAType LoadLibraryAOriginal; -LoadLibraryExWType LoadLibraryExWOriginal; -LoadLibraryWType LoadLibraryWOriginal; + case eDllLoadCallbackSide::DEDICATED_SERVER: + { + AddDllLoadCallbackForDedicatedServer(dllName, callback, uniqueStr, reliesOnArray); + break; + } + } +} -void InstallInitialHooks() +void __fileAutohook::Dispatch() { - if (MH_Initialize() != MH_OK) - spdlog::error("MH_Initialize (minhook initialization) failed"); + for (__autohook* hook : hooks) + hook->Dispatch(); +} + +void __fileAutohook::DispatchForModule(const char* pModuleName) +{ + const int iModuleNameLen = strlen(pModuleName); + + for (__autohook* hook : hooks) + if ((hook->iAddressResolutionMode == __autohook::OFFSET_STRING && !strncmp(pModuleName, hook->pAddrString, iModuleNameLen)) || + (hook->iAddressResolutionMode == __autohook::PROCADDRESS && !strcmp(pModuleName, hook->pModuleName))) + hook->Dispatch(); +} - HookEnabler hook; - ENABLER_CREATEHOOK( - hook, reinterpret_cast<void*>(&GetCommandLineA), &GetCommandLineAHook, reinterpret_cast<LPVOID*>(&GetCommandLineAOriginal)); - ENABLER_CREATEHOOK( - hook, reinterpret_cast<void*>(&LoadLibraryExA), &LoadLibraryExAHook, reinterpret_cast<LPVOID*>(&LoadLibraryExAOriginal)); - ENABLER_CREATEHOOK(hook, reinterpret_cast<void*>(&LoadLibraryA), &LoadLibraryAHook, reinterpret_cast<LPVOID*>(&LoadLibraryAOriginal)); - ENABLER_CREATEHOOK( - hook, reinterpret_cast<void*>(&LoadLibraryExW), &LoadLibraryExWHook, reinterpret_cast<LPVOID*>(&LoadLibraryExWOriginal)); - ENABLER_CREATEHOOK(hook, reinterpret_cast<void*>(&LoadLibraryW), &LoadLibraryWHook, reinterpret_cast<LPVOID*>(&LoadLibraryWOriginal)); +ManualHook::ManualHook(const char* funcName, LPVOID func) : pHookFunc(func), ppOrigFunc(nullptr) +{ + const int iFuncNameStrlen = strlen(funcName); + pFuncName = new char[iFuncNameStrlen]; + memcpy(pFuncName, funcName, iFuncNameStrlen); } -LPSTR GetCommandLineAHook() +ManualHook::ManualHook(const char* funcName, LPVOID* orig, LPVOID func) : pHookFunc(func), ppOrigFunc(orig) +{ + const int iFuncNameStrlen = strlen(funcName); + pFuncName = new char[iFuncNameStrlen]; + memcpy(pFuncName, funcName, iFuncNameStrlen); +} + +bool ManualHook::Dispatch(LPVOID addr, LPVOID* orig) +{ + if (orig) + ppOrigFunc = orig; + + if (MH_CreateHook(addr, pHookFunc, ppOrigFunc) == MH_OK) + { + if (MH_EnableHook(addr) == MH_OK) + { + spdlog::info("Enabling hook {}", pFuncName); + return true; + } + else + spdlog::error("MH_EnableHook failed for function {}", pFuncName); + } + else + spdlog::error("MH_CreateHook failed for function {}", pFuncName); + + return false; +} + +// dll load callback stuff +// this allows for code to register callbacks to be run as soon as a dll is loaded, mainly to allow for patches to be made on dll load +struct DllLoadCallback +{ + std::string dll; + DllLoadCallbackFuncType callback; + std::string tag; + std::vector<std::string> reliesOn; + bool called; +}; + +// HACK: declaring and initialising this vector at file scope crashes on debug builds due to static initialisation order +// using a static var like this ensures that the vector is initialised lazily when it's used +std::vector<DllLoadCallback>& GetDllLoadCallbacks() +{ + static std::vector<DllLoadCallback> vec = std::vector<DllLoadCallback>(); + return vec; +} + +void AddDllLoadCallback(std::string dll, DllLoadCallbackFuncType callback, std::string tag, std::vector<std::string> reliesOn) +{ + DllLoadCallback& callbackStruct = GetDllLoadCallbacks().emplace_back(); + + callbackStruct.dll = dll; + callbackStruct.callback = callback; + callbackStruct.tag = tag; + callbackStruct.reliesOn = reliesOn; + callbackStruct.called = false; +} + +void AddDllLoadCallbackForDedicatedServer( + std::string dll, DllLoadCallbackFuncType callback, std::string tag, std::vector<std::string> reliesOn) +{ + if (!IsDedicatedServer()) + return; + + AddDllLoadCallback(dll, callback, tag, reliesOn); +} + +void AddDllLoadCallbackForClient(std::string dll, DllLoadCallbackFuncType callback, std::string tag, std::vector<std::string> reliesOn) +{ + if (IsDedicatedServer()) + return; + + AddDllLoadCallback(dll, callback, tag, reliesOn); +} + +void MakeHook(LPVOID pTarget, LPVOID pDetour, void* ppOriginal, const char* pFuncName) +{ + char* pStrippedFuncName = (char*)pFuncName; + // strip & char from funcname + if (*pStrippedFuncName == '&') + pStrippedFuncName++; + + if (MH_CreateHook(pTarget, pDetour, (LPVOID*)ppOriginal) == MH_OK) + { + if (MH_EnableHook(pTarget) == MH_OK) + spdlog::info("Enabling hook {}", pStrippedFuncName); + else + spdlog::error("MH_EnableHook failed for function {}", pStrippedFuncName); + } + else + spdlog::error("MH_CreateHook failed for function {}", pStrippedFuncName); +} + +AUTOHOOK_ABSOLUTEADDR(_GetCommandLineA, GetCommandLineA, LPSTR, WINAPI, ()) { static char* cmdlineModified; static char* cmdlineOrg; if (cmdlineOrg == nullptr || cmdlineModified == nullptr) { - cmdlineOrg = GetCommandLineAOriginal(); + cmdlineOrg = _GetCommandLineA(); bool isDedi = strstr(cmdlineOrg, "-dedicated"); // well, this one has to be a real argument bool ignoreStartupArgs = strstr(cmdlineOrg, "-nostartupargs"); @@ -111,77 +243,86 @@ LPSTR GetCommandLineAHook() return cmdlineModified; } -// dll load callback stuff -// this allows for code to register callbacks to be run as soon as a dll is loaded, mainly to allow for patches to be made on dll load -struct DllLoadCallback -{ - std::string dll; - DllLoadCallbackFuncType callback; - bool called; -}; - -std::vector<DllLoadCallback*> dllLoadCallbacks; - -void AddDllLoadCallback(std::string dll, DllLoadCallbackFuncType callback) -{ - DllLoadCallback* callbackStruct = new DllLoadCallback; - callbackStruct->dll = dll; - callbackStruct->callback = callback; - callbackStruct->called = false; - - dllLoadCallbacks.push_back(callbackStruct); -} - -void AddDllLoadCallbackForDedicatedServer(std::string dll, DllLoadCallbackFuncType callback) -{ - if (!IsDedicatedServer()) - return; - - DllLoadCallback* callbackStruct = new DllLoadCallback; - callbackStruct->dll = dll; - callbackStruct->callback = callback; - callbackStruct->called = false; - - dllLoadCallbacks.push_back(callbackStruct); -} - -void AddDllLoadCallbackForClient(std::string dll, DllLoadCallbackFuncType callback) -{ - if (IsDedicatedServer()) - return; - - DllLoadCallback* callbackStruct = new DllLoadCallback; - callbackStruct->dll = dll; - callbackStruct->callback = callback; - callbackStruct->called = false; - - dllLoadCallbacks.push_back(callbackStruct); -} - +std::vector<std::string> calledTags; void CallLoadLibraryACallbacks(LPCSTR lpLibFileName, HMODULE moduleAddress) { - for (auto& callbackStruct : dllLoadCallbacks) + CModule cModule(moduleAddress); + + while (true) { - if (!callbackStruct->called && - strstr(lpLibFileName + (strlen(lpLibFileName) - callbackStruct->dll.length()), callbackStruct->dll.c_str()) != nullptr) + bool bDoneCalling = true; + + for (auto& callbackStruct : GetDllLoadCallbacks()) { - callbackStruct->callback(moduleAddress); - callbackStruct->called = true; + if (!callbackStruct.called && fs::path(lpLibFileName).filename() == fs::path(callbackStruct.dll).filename()) + { + bool bShouldContinue = false; + + if (!callbackStruct.reliesOn.empty()) + { + for (std::string tag : callbackStruct.reliesOn) + { + if (std::find(calledTags.begin(), calledTags.end(), tag) == calledTags.end()) + { + bDoneCalling = false; + bShouldContinue = true; + break; + } + } + } + + if (bShouldContinue) + continue; + + callbackStruct.callback(moduleAddress); + calledTags.push_back(callbackStruct.tag); + callbackStruct.called = true; + } } + + if (bDoneCalling) + break; } } void CallLoadLibraryWCallbacks(LPCWSTR lpLibFileName, HMODULE moduleAddress) { - for (auto& callbackStruct : dllLoadCallbacks) + CModule cModule(moduleAddress); + + while (true) { - std::wstring wcharStrDll = std::wstring(callbackStruct->dll.begin(), callbackStruct->dll.end()); - const wchar_t* callbackDll = wcharStrDll.c_str(); - if (!callbackStruct->called && wcsstr(lpLibFileName + (wcslen(lpLibFileName) - wcharStrDll.length()), callbackDll) != nullptr) + bool bDoneCalling = true; + + for (auto& callbackStruct : GetDllLoadCallbacks()) { - callbackStruct->callback(moduleAddress); - callbackStruct->called = true; + if (!callbackStruct.called && fs::path(lpLibFileName).filename() == fs::path(callbackStruct.dll).filename()) + { + bool bShouldContinue = false; + + if (!callbackStruct.reliesOn.empty()) + { + for (std::string tag : callbackStruct.reliesOn) + { + if (std::find(calledTags.begin(), calledTags.end(), tag) == calledTags.end()) + { + bDoneCalling = false; + bShouldContinue = true; + break; + } + } + } + + if (bShouldContinue) + continue; + + callbackStruct.callback(moduleAddress); + calledTags.push_back(callbackStruct.tag); + callbackStruct.called = true; + } } + + if (bDoneCalling) + break; } } @@ -208,65 +349,78 @@ void CallAllPendingDLLLoadCallbacks() } } -HMODULE LoadLibraryExAHook(LPCSTR lpLibFileName, HANDLE hFile, DWORD dwFlags) +// clang-format off +AUTOHOOK_ABSOLUTEADDR(_LoadLibraryExA, LoadLibraryExA, +HMODULE, WINAPI, (LPCSTR lpLibFileName, HANDLE hFile, DWORD dwFlags)) +// clang-format on { + HMODULE moduleAddress; + + // replace xinput dll with one that has ASLR if (!strncmp(lpLibFileName, "XInput1_3.dll", 14)) { - HMODULE moduleAddress = LoadLibraryExAOriginal("XInput9_1_0.dll", hFile, dwFlags); - if (moduleAddress) - { - CallLoadLibraryACallbacks(lpLibFileName, moduleAddress); - } - else + moduleAddress = _LoadLibraryExA("XInput9_1_0.dll", hFile, dwFlags); + + if (!moduleAddress) { MessageBoxA(0, "Could not find XInput9_1_0.dll", "Northstar", MB_ICONERROR); exit(-1); + + return nullptr; } - return moduleAddress; } else - { - HMODULE moduleAddress = LoadLibraryExAOriginal(lpLibFileName, hFile, dwFlags); - if (moduleAddress) - { - CallLoadLibraryACallbacks(lpLibFileName, moduleAddress); - } - return moduleAddress; - } + moduleAddress = _LoadLibraryExA(lpLibFileName, hFile, dwFlags); + + if (moduleAddress) + CallLoadLibraryACallbacks(lpLibFileName, moduleAddress); + + return moduleAddress; } -HMODULE LoadLibraryAHook(LPCSTR lpLibFileName) +// clang-format off +AUTOHOOK_ABSOLUTEADDR(_LoadLibraryA, LoadLibraryA, +HMODULE, WINAPI, (LPCSTR lpLibFileName)) +// clang-format on { - HMODULE moduleAddress = LoadLibraryAOriginal(lpLibFileName); + HMODULE moduleAddress = _LoadLibraryA(lpLibFileName); if (moduleAddress) - { CallLoadLibraryACallbacks(lpLibFileName, moduleAddress); - } return moduleAddress; } -HMODULE LoadLibraryExWHook(LPCWSTR lpLibFileName, HANDLE hFile, DWORD dwFlags) +// clang-format off +AUTOHOOK_ABSOLUTEADDR(_LoadLibraryExW, LoadLibraryExW, +HMODULE, WINAPI, (LPCWSTR lpLibFileName, HANDLE hFile, DWORD dwFlags)) +// clang-format on { - HMODULE moduleAddress = LoadLibraryExWOriginal(lpLibFileName, hFile, dwFlags); + HMODULE moduleAddress = _LoadLibraryExW(lpLibFileName, hFile, dwFlags); if (moduleAddress) - { CallLoadLibraryWCallbacks(lpLibFileName, moduleAddress); - } return moduleAddress; } -HMODULE LoadLibraryWHook(LPCWSTR lpLibFileName) +// clang-format off +AUTOHOOK_ABSOLUTEADDR(_LoadLibraryW, LoadLibraryW, +HMODULE, WINAPI, (LPCWSTR lpLibFileName)) +// clang-format on { - HMODULE moduleAddress = LoadLibraryWOriginal(lpLibFileName); + HMODULE moduleAddress = _LoadLibraryW(lpLibFileName); if (moduleAddress) - { CallLoadLibraryWCallbacks(lpLibFileName, moduleAddress); - } return moduleAddress; } + +void InstallInitialHooks() +{ + if (MH_Initialize() != MH_OK) + spdlog::error("MH_Initialize (minhook initialization) failed"); + + AUTOHOOK_DISPATCH() +} |