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60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
/**
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veh_hook Vectored Exception Handler hooking library
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Version: 24-March-2008
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**/
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#ifndef LIST_T_H_INCLUDED
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#define LIST_T_H_INCLUDED
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#include <windows.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include<functional>
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// VEH Hooking types
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#define VEH_HK_INT3 0
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#define VEH_HK_MEM 1
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#define VEH_HK_HW 2
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// -
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#define OPCODE_INT3 "\xCC"
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//typedef void (*pfvoid)();
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//typedef void (*newFuncType)(PCONTEXT);
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using newFuncType = std::function<bool(PCONTEXT)>;
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typedef struct veh_node
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{
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struct veh_node* last;
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struct veh_node* next;
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void* origFunc;
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newFuncType newFunc;
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void* handle;
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DWORD hooktype;
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void* baseAddr; // Address of the page in which origFunc resides.
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BYTE origBaseByte;
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DWORD OldProtect;
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} veh_node_t;
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typedef struct
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{
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veh_node_t* head;
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veh_node_t* tail;
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} veh_list_t;
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// VEH hook interface functions for creating and removing hooks.
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bool add_veh_hook(void* origFunc, newFuncType newFunc, DWORD hook_type=VEH_HK_INT3);
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bool remove_veh_hook(void* origFunc);
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// The VEH dispathing function is called by Windows every time an exception is encountered.
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// the function dispatches calls to the correct inctercept function.
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LONG CALLBACK veh_dispatch(PEXCEPTION_POINTERS ExceptionInfo);
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// Functions used internally by the library.
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veh_list_t* new_veh_list();
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veh_node_t* create_veh_node(void* origFunc, newFuncType newFunc, void* handle, DWORD hook_type);
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void insert_veh_node(veh_list_t* list, veh_node_t*);
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bool remove_veh_node(veh_list_t* list, void* origFunc);
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veh_node_t* get_veh_node(veh_list_t* list, void* origFunc, int range=0);
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#endif // LIST_T_H_INCLUDED
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