184 lines
7.4 KiB
C++
184 lines
7.4 KiB
C++
/*************************************************************************/
|
|
/* Copyright (c) 2015 dx, http://kaimi.ru */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person */
|
|
/* obtaining a copy of this software and associated documentation */
|
|
/* files (the "Software"), to deal in the Software without */
|
|
/* restriction, including without limitation the rights to use, */
|
|
/* copy, modify, merge, publish, distribute, sublicense, and/or */
|
|
/* sell copies of the Software, and to permit persons to whom the */
|
|
/* Software is furnished to do so, subject to the following conditions: */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
#pragma once
|
|
#include <vector>
|
|
#include <string>
|
|
#include "pe_structures.h"
|
|
#include "pe_base.h"
|
|
#include "pe_directory.h"
|
|
|
|
namespace pe_bliss
|
|
{
|
|
//Class representing exported function
|
|
class exported_function
|
|
{
|
|
public:
|
|
//Default constructor
|
|
exported_function();
|
|
|
|
//Returns ordinal of function (actually, ordinal = hint + ordinal base)
|
|
uint16_t get_ordinal() const;
|
|
|
|
//Returns RVA of function
|
|
uint32_t get_rva() const;
|
|
|
|
//Returns true if function has name and name ordinal
|
|
bool has_name() const;
|
|
//Returns name of function
|
|
const std::string& get_name() const;
|
|
//Returns name ordinal of function
|
|
uint16_t get_name_ordinal() const;
|
|
|
|
//Returns true if function is forwarded to other library
|
|
bool is_forwarded() const;
|
|
//Returns the name of forwarded function
|
|
const std::string& get_forwarded_name() const;
|
|
|
|
public: //Setters do not change everything inside image, they are used by PE class
|
|
//You can also use them to rebuild export directory
|
|
|
|
//Sets ordinal of function
|
|
void set_ordinal(uint16_t ordinal);
|
|
|
|
//Sets RVA of function
|
|
void set_rva(uint32_t rva);
|
|
|
|
//Sets name of function (or clears it, if empty name is passed)
|
|
void set_name(const std::string& name);
|
|
//Sets name ordinal
|
|
void set_name_ordinal(uint16_t name_ordinal);
|
|
|
|
//Sets forwarded function name (or clears it, if empty name is passed)
|
|
void set_forwarded_name(const std::string& name);
|
|
|
|
private:
|
|
uint16_t ordinal_; //Function ordinal
|
|
uint32_t rva_; //Function RVA
|
|
std::string name_; //Function name
|
|
bool has_name_; //true == function has name
|
|
uint16_t name_ordinal_; //Function name ordinal
|
|
bool forward_; //true == function is forwarded
|
|
std::string forward_name_; //Name of forwarded function
|
|
};
|
|
|
|
//Class representing export information
|
|
class export_info
|
|
{
|
|
public:
|
|
//Default constructor
|
|
export_info();
|
|
|
|
//Returns characteristics
|
|
uint32_t get_characteristics() const;
|
|
//Returns timestamp
|
|
uint32_t get_timestamp() const;
|
|
//Returns major version
|
|
uint16_t get_major_version() const;
|
|
//Returns minor version
|
|
uint16_t get_minor_version() const;
|
|
//Returns DLL name
|
|
const std::string& get_name() const;
|
|
//Returns ordinal base
|
|
uint32_t get_ordinal_base() const;
|
|
//Returns number of functions
|
|
uint32_t get_number_of_functions() const;
|
|
//Returns number of function names
|
|
uint32_t get_number_of_names() const;
|
|
//Returns RVA of function address table
|
|
uint32_t get_rva_of_functions() const;
|
|
//Returns RVA of function name address table
|
|
uint32_t get_rva_of_names() const;
|
|
//Returns RVA of name ordinals table
|
|
uint32_t get_rva_of_name_ordinals() const;
|
|
|
|
public: //Setters do not change everything inside image, they are used by PE class
|
|
//You can also use them to rebuild export directory using rebuild_exports
|
|
|
|
//Sets characteristics
|
|
void set_characteristics(uint32_t characteristics);
|
|
//Sets timestamp
|
|
void set_timestamp(uint32_t timestamp);
|
|
//Sets major version
|
|
void set_major_version(uint16_t major_version);
|
|
//Sets minor version
|
|
void set_minor_version(uint16_t minor_version);
|
|
//Sets DLL name
|
|
void set_name(const std::string& name);
|
|
//Sets ordinal base
|
|
void set_ordinal_base(uint32_t ordinal_base);
|
|
//Sets number of functions
|
|
void set_number_of_functions(uint32_t number_of_functions);
|
|
//Sets number of function names
|
|
void set_number_of_names(uint32_t number_of_names);
|
|
//Sets RVA of function address table
|
|
void set_rva_of_functions(uint32_t rva_of_functions);
|
|
//Sets RVA of function name address table
|
|
void set_rva_of_names(uint32_t rva_of_names);
|
|
//Sets RVA of name ordinals table
|
|
void set_rva_of_name_ordinals(uint32_t rva_of_name_ordinals);
|
|
|
|
private:
|
|
uint32_t characteristics_;
|
|
uint32_t timestamp_;
|
|
uint16_t major_version_;
|
|
uint16_t minor_version_;
|
|
std::string name_;
|
|
uint32_t ordinal_base_;
|
|
uint32_t number_of_functions_;
|
|
uint32_t number_of_names_;
|
|
uint32_t address_of_functions_;
|
|
uint32_t address_of_names_;
|
|
uint32_t address_of_name_ordinals_;
|
|
};
|
|
|
|
//Exported functions list typedef
|
|
typedef std::vector<exported_function> exported_functions_list;
|
|
|
|
//Returns array of exported functions
|
|
const exported_functions_list get_exported_functions(const pe_base& pe);
|
|
//Returns array of exported functions and information about export
|
|
const exported_functions_list get_exported_functions(const pe_base& pe, export_info& info);
|
|
|
|
//Helper export functions
|
|
//Returns pair: <ordinal base for supplied functions; maximum ordinal value for supplied functions>
|
|
const std::pair<uint16_t, uint16_t> get_export_ordinal_limits(const exported_functions_list& exports);
|
|
|
|
//Checks if exported function name already exists
|
|
bool exported_name_exists(const std::string& function_name, const exported_functions_list& exports);
|
|
|
|
//Checks if exported function ordinal already exists
|
|
bool exported_ordinal_exists(uint16_t ordinal, const exported_functions_list& exports);
|
|
|
|
//Export directory rebuilder
|
|
//info - export information
|
|
//exported_functions_list - list of exported functions
|
|
//exports_section - section where export directory will be placed (must be attached to PE image)
|
|
//offset_from_section_start - offset from exports_section raw data start
|
|
//save_to_pe_headers - if true, new export directory information will be saved to PE image headers
|
|
//auto_strip_last_section - if true and exports are placed in the last section, it will be automatically stripped
|
|
//number_of_functions and number_of_names parameters don't matter in "info" when rebuilding, they're calculated independently
|
|
//characteristics, major_version, minor_version, timestamp and name are the only used members of "info" structure
|
|
//Returns new export directory information
|
|
//exported_functions_list is copied intentionally to be sorted by ordinal values later
|
|
//Name ordinals in exported function don't matter, they will be recalculated
|
|
const image_directory rebuild_exports(pe_base& pe, const export_info& info, exported_functions_list exports, section& exports_section, uint32_t offset_from_section_start = 0, bool save_to_pe_header = true, bool auto_strip_last_section = true);
|
|
}
|