pe.h

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#ifndef __PE_H__
#define __PE_H__
 
 
#include <stdint.h>
 
#pragma pack(push, 1)
 
typedef struct _IMAGE_DOS_HEADER_ {
    uint16_t e_magic;
    uint16_t e_cblp;
    uint16_t e_cp;
    uint16_t e_crlc;
    uint16_t e_cparhdr;
    uint16_t e_minalloc;
    uint16_t e_maxalloc;
    uint16_t e_ss;
    uint16_t e_sp;
    uint16_t e_csum;
    uint16_t e_ip;
    uint16_t e_cs;
    uint16_t e_lfarlc;
    uint16_t e_ovno;
    uint16_t e_res[4];
    uint16_t e_oemid;
    uint16_t e_oeminfo;
    uint16_t e_res2[10];
    uint16_t e_lfanew;
} IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER;
 
typedef struct _IMAGE_NT_HEADERS_PE32_ IMAGE_NT_HEADERS_PE32, *PIMAGE_NT_HEADERS_PE32;
typedef struct _IMAGE_NT_HEADERS_PE32PLUS_  IMAGE_NT_HEADERS_PE32PLYS, *PIMAGE_NT_HEADERS_PE32PLUS;
 
enum PeMachineType {
    IMAGE_FILE_MACHINE_AMD64 = 0x8664,
    IMAGE_FILE_MACHINE_ARM = 0x1C0,
    IMAGE_FILE_MACHINE_EBC = 0xEBC,
    IMAGE_FILE_MACHINE_I386 = 0x14c,
    IMAGE_FILE_MACHINE_THUMB = 0x1c2,
    IMAGE_FILE_MACHINE_ARM64 = 0xaa64,
    IMAGE_FILE_MACHINE_ARMNT = 0x1c4
};
 
typedef struct _IMAGE_FILE_HEADER_ {
    uint16_t Machine;
    uint16_t NumberOfSections;
    uint32_t TimeDateStamp;
    uint32_t PointerToSymbolTable;
    uint32_t NumberOfSymbols;
    uint16_t SizeOfOptionaHeader;
    uint16_t Characteristics;
} IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER;
 
enum PeOptionalMagic {
    MAGIC_PE32 = 0x10b,
    MAGIC_PE32P = 0x20b
};
 
typedef struct _IMAGE_DATA_DIRECTORY_ {
    uint32_t VirtualAddress;
    uint32_t Size;
} IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY;
 
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
 
typedef struct _IMAGE_OPTIONAL_HEADER_PE32_ {
    uint16_t Magic;
    uint8_t  MajorLinkerVersion;
    uint8_t  MinorLinkerVersion;
    uint32_t SizeOfCode;
    uint32_t SizeOfInitializedData;
    uint32_t SizeOfUninitializedData;
    uint32_t AddressOfEntryPoint;
    uint32_t BaseOfCode;
    uint32_t BaseOfData;
    uint32_t ImageBase;
    uint32_t SectionAlighnment;
    uint32_t FileAlignment;
    uint16_t MajorOperatingSystemVersion;
    uint16_t MinorOperatingSystemVersion;
    uint16_t MajorImageVersion;
    uint16_t MinorImageVersion;
    uint16_t MajorSubsystemVersion;
    uint16_t MinorSubsystemVersion;
    uint32_t Reserved1;
    uint32_t SizeOfImage;
    uint32_t SizeOfHeaders;
    uint32_t CheckSum;
    uint16_t Subsystem;
    uint16_t DllCharacteristics;
    uint32_t SizeOfStackReserve;
    uint32_t SizeOfStackCommit;
    uint32_t SizeOfHeapReserve;
    uint32_t SizeOfHeapCommit;
    uint32_t LoaderFlags;
    uint32_t NumberOfRvaAndSizes;
    IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
} IMAGE_OPTIONAL_HEADER_PE32, *PIMAGE_OPTIONAL_HEADER_PE32;
 
typedef struct _IMAGE_OPTIONAL_HEADER_PE32PLUS {
 
    uint16_t  Magic;                // not-so-magical number
    uint8_t   MajorLinkerVersion;           // linker version
    uint8_t   MinorLinkerVersion;
    uint32_t   SizeOfCode;              // size of .text in bytes
    uint32_t   SizeOfInitializedData;       // size of .bss (and others) in bytes
    uint32_t   SizeOfUninitializedData;     // size of .data,.sdata etc in bytes
    uint32_t   AddressOfEntryPoint;     // RVA of entry point
    uint32_t   BaseOfCode;              // base of .text
    uint64_t   ImageBase;               // image base VA
    uint32_t   SectionAlignment;            // file section alignment
    uint32_t   FileAlignment;           // file alignment
    uint16_t  MajorOperatingSystemVersion;  // Windows specific. OS version required to run image
    uint16_t  MinorOperatingSystemVersion;
    uint16_t  MajorImageVersion;            // version of program
    uint16_t  MinorImageVersion;
    uint16_t  MajorSubsystemVersion;        // Windows specific. Version of SubSystem
    uint16_t  MinorSubsystemVersion;
    uint32_t   Reserved1;
    uint32_t   SizeOfImage;         // size of image in bytes
    uint32_t   SizeOfHeaders;           // size of headers (and stub program) in bytes
    uint32_t   CheckSum;                // checksum
    uint16_t  Subsystem;                // Windows specific. subsystem type
    uint16_t  DllCharacteristics;           // DLL properties
    uint64_t   SizeOfStackReserve;          // size of stack, in bytes
    uint64_t   SizeOfStackCommit;           // size of stack to commit
    uint64_t   SizeOfHeapReserve;           // size of heap, in bytes
    uint64_t   SizeOfHeapCommit;            // size of heap to commit
    uint32_t   LoaderFlags;         // no longer used
    uint32_t   NumberOfRvaAndSizes;     // number of DataDirectory entries
    IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
} IMAGE_OPTIONAL_HEADER_PE32PLUS, *PIMAGE_OPTIONAL_HEADER_PE32PLUS;
 
struct _IMAGE_NT_HEADERS_PE32 {
    uint32_t                 Signature;
    IMAGE_FILE_HEADER     FileHeader;
    IMAGE_OPTIONAL_HEADER_PE32 OptionalHeader;
};
 
struct _IMAGE_NT_HEADERS_PE32PLUS {
    uint32_t                 Signature;
    IMAGE_FILE_HEADER     FileHeader;
    IMAGE_OPTIONAL_HEADER_PE32PLUS OptionalHeader;
};
 
 
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
 
 
#define IMAGE_SCN_CNT_CODE 0x00000020
#define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040
#define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080
#define IMAGE_SCN_MEM_DISCARDABLE 0x02000000
#define IMAGE_SCN_MEM_NOT_CACHED 0x04000000
#define IMAGE_SCN_MEM_NOT_PAGED 0x08000000
#define IMAGE_SCN_MEM_SHARED 0x10000000
#define IMAGE_SCN_MEM_EXECUTE 0x20000000
#define IMAGE_SCN_MEM_READ 0x40000000
#define IMAGE_SCN_MEM_WRITE 0x80000000
 
typedef struct _IMAGE_SECTION_HEADER {
    char Name[8];
    uint32_t VirtualSize;
    uint32_t VirtualAddress;
    uint32_t SizeOfRawData;
    uint32_t PointerToRawData;
    uint32_t PointerToRelocations;
    uint32_t PointerToLinenumbers;
    uint16_t NumberOfRelocations;
    uint16_t NumberOfLinenumbers;
    uint32_t Characteristics;
}SECTION_HEADER, *PSECTION_HEADER;
 
#define IMAGE_DATA_DIRECTORY_EXPORT 0
#define IMAGE_DATA_DIRECTORY_IMPORT 1
 
typedef struct _IMAGE_EXPORT_DIRECTORY {
    uint32_t Characteristics;
    uint32_t TimeDateStamp;
    uint16_t MajorVersion;
    uint16_t MinorVersion;
    uint32_t Name;
    uint32_t Base;
    uint32_t NumberOfFunctions;
    uint32_t NumberOfNames;
    uint32_t AddressOfFunctions;   //export table rva
    uint32_t AddressOfNames;
    uint32_t AddressOfNameOrdinal;  //ordinal table rva
}IMAGE_EXPORT_DIRECTORY, *PIMAGE_EXPORT_DIRECTORY;
 
typedef struct _IMAGE_IMPORT_DIRECTORY {
    union {
        uint32_t Characteristics;
        uint32_t OriginalFirstThunk;
    };
    uint32_t TimeDateStamp;
    uint32_t ForwarderChain;
    uint32_t NameRva;
    uint32_t ThunkTableRva;
}IMAGE_IMPORT_DIRECTORY, *PIMAGE_IMPORT_DIRECTORY;
 
typedef struct _IMAGE_RELOCATION_ENTRY_ {
    uint16_t offset : 12;
    uint16_t type : 4;
}IMAGE_RELOCATION_ENTRY, *PIMAGE_RELOCATION_ENTRY;
 
typedef struct _IMAGE_RELOCATION_BLOCK_ {
    uint32_t PageRVA;
    uint32_t BlockSize;
    IMAGE_RELOCATION_ENTRY entries[0];
}IMAGE_RELOCATION_BLOCK, *PIMAGE_RELOCATION_BLOCK;
 
typedef struct _IMAGE_IMPORT_HINT_TABLE {
    uint16_t Hint;
    char name[2];
}IMAGE_IMPORT_HINT_TABLE, *PIMAGE_IMPORT_HINT_TABLE;
 
 
#define IMAGE_IMPORT_LOOKUP_TABLE_FLAG_PE32 0x80000000
typedef uint32_t IMAGE_IMPORT_LOOKUP_TABLE_PE32, *PIMAGE_IMPORT_LOOKUP_TABLE_PE32;
 
#define IMAGE_IMPORT_LOOKUP_TABLE_FLAG_PE32P 0x8000000000000000
typedef unsigned long long IMAGE_IMPORT_LOOKUP_TABLE_PE32P, *PIMAGE_IMPORT_LOOKUP_TABLE_PE32P;
 
#pragma pack(pop)
 
typedef struct _IMAGE_NT_HEADERS_PE32PLUS IMAGE_NT_HEADERS, *PIMAGE_NT_HEADERS;
typedef IMAGE_IMPORT_LOOKUP_TABLE_PE32  IMAGE_IMPORT_LOOKUP_TABLE, *PIMAGE_IMPORT_LOOKUP_TABLE;
typedef IMAGE_IMPORT_LOOKUP_TABLE_PE32P IMAGE_IMPORT_LOOKUP_TABLE_PE32P, *PIMAGE_IMPORT_LOOKUP_TABLE_PE32P;
static const enum PeOptionalMagic MAGIC_NATIVE = MAGIC_PE32;
static const enum PeMachineType   MACHINE_NATIVE = IMAGE_FILE_MACHINE_I386;
#define IMAGE_IMPORT_LOOKUP_TABLE_FLAG  IMAGE_IMPORT_LOOKUP_TABLE_FLAG_PE32
 
 
 
/*
* AuGetProcAddress -- get procedure address in a dll image
* @param image -- dll image
* @param procname -- procedure name
*/
extern void* AuGetProcAddress(void *image, const char* procname);
 
/*
* AuKernelLinkDLL -- Links a dll library to kernel symbols
* @param image -- dll image
*/
extern void AuKernelLinkDLL(void* image);
 
/*
* AuPEPrintExports -- get procedure address in a dll image
* @param image -- dll image
*/
extern void AuPEPrintExports(void *image);
 
/*
* AuKernelLinkImports -- Links kernel imports to dll
* @param image -- dll image
*/
extern void AuKernelLinkImports(void* image);
 
/*
* AuKernelRelocatePE -- relocates the image from its actual
* base address
* @param image -- pointer to executable image
* @param nt -- nt headers
* @param diff -- difference from its original
*/
extern void AuKernelRelocatePE(void* image, PIMAGE_NT_HEADERS nt, int diff);
 
/*
* AuPEFileIsDynamicallyLinked -- checks if the current
* binary image is dynamically linked
* @param image -- pointer to image address
*/
extern bool AuPEFileIsDynamicallyLinked(void* image);
#endif