113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
#pragma once
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#include "common.h"
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#include "const.h"
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template<typename E, typename M = std::mutex, template<typename...> typename P = std::unique_ptr>
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class ThreadSafePtr
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{
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public:
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template <typename ...Args> ThreadSafePtr(Args ...args) : ptr(new E(args...)), mtxPtr(new M) {}
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auto operator->()
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{
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struct
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{
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E* operator->() { return ptr; }
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std::unique_lock<M> lock;
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E* ptr;
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} lockedProxy{ std::unique_lock<M>(*mtxPtr), ptr.get() };
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return lockedProxy;
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}
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private:
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P<E> ptr;
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P<M> mtxPtr;
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};
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struct DefHandleCloser { void operator()(void* h) { CloseHandle(h); } };
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template <typename HandleCloser = DefHandleCloser>
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class AutoHandle
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{
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public:
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AutoHandle(HANDLE h) : h(h) {}
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operator HANDLE() { return h.get(); }
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operator bool() { return h.get() != NULL && h.get() != INVALID_HANDLE_VALUE; }
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private:
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struct HandleCleaner : HandleCloser { void operator()(void* h) { if (h != INVALID_HANDLE_VALUE) HandleCloser::operator()(h); } };
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std::unique_ptr<void, HandleCleaner> h;
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};
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// jichi 3/7/2014: Add guessed comment
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struct HookParam
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{
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// jichi 8/24/2013: For special hooks.
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typedef void(*text_fun_t)(DWORD esp, HookParam *hp, BYTE index, DWORD *data, DWORD *split, DWORD *len);
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typedef bool(*filter_fun_t)(LPVOID str, DWORD *len, HookParam *hp, BYTE index); // jichi 10/24/2014: Add filter function. Return true if skip the text
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typedef bool(*hook_fun_t)(DWORD esp, HookParam *hp); // jichi 10/24/2014: Add generic hook function, return false if stop execution.
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uint64_t insertion_address; // absolute address
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uint64_t address; // absolute or relative address (not changed by TextHook)
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int offset, // offset of the data in the memory
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index, // deref_offset1
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split, // offset of the split character
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split_index; // deref_offset2
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wchar_t module[MAX_MODULE_SIZE];
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char function[MAX_MODULE_SIZE];
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DWORD type; // flags
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UINT codepage; // text encoding
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WORD length_offset; // index of the string length
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DWORD user_value; // 7/20/2014: jichi additional parameters for PSP games
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text_fun_t text_fun;
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filter_fun_t filter_fun;
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hook_fun_t hook_fun;
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char name[HOOK_NAME_SIZE];
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};
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struct ThreadParam
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{
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DWORD processId;
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uint64_t addr;
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uint64_t ctx; // The context of the hook: by default the first value on stack, usually the return address
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uint64_t ctx2; // The subcontext of the hook: 0 by default, generated in a method specific to the hook
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};
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// Artikash 5/31/2018: required for unordered_map to work with struct key
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template <> struct std::hash<ThreadParam> { size_t operator()(const ThreadParam& tp) const { return std::hash<int64_t>()((tp.processId + tp.addr) ^ (tp.ctx + tp.ctx2)); } };
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static bool operator==(const ThreadParam& one, const ThreadParam& two) { return one.processId == two.processId && one.addr == two.addr && one.ctx == two.ctx && one.ctx2 == two.ctx2; }
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class WinMutex // Like CMutex but works with lock_guard
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{
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public:
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WinMutex(std::wstring name) : m(CreateMutexW(nullptr, FALSE, name.c_str())) {}
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void lock() { if (m) WaitForSingleObject(m, 0); }
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void unlock() { if (m) ReleaseMutex(m); }
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private:
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AutoHandle<> m;
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};
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struct InsertHookCmd // From host
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{
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InsertHookCmd(HookParam hp) : hp(hp) {};
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int command = HOST_COMMAND_NEW_HOOK;
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HookParam hp;
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};
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struct ConsoleOutputNotif // From hook
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{
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ConsoleOutputNotif(std::string message = "") { strcpy_s<MESSAGE_SIZE>(this->message, message.c_str()); };
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int command = HOST_NOTIFICATION_TEXT;
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char message[MESSAGE_SIZE] = {};
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};
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struct HookRemovedNotif // From hook
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{
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HookRemovedNotif(uint64_t address) : address(address) {};
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int command = HOST_NOTIFICATION_RMVHOOK;
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uint64_t address;
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};
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#define LOCK(mutex) std::lock_guard lock(mutex)
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