/*

  *  Copyright (C) 2007-2008 Sourcefire, Inc.

  *

  *  Authors: Alberto Wu, Tomasz Kojm

  *

  *  This program is free software; you can redistribute it and/or modify

  *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation.

  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software

  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  *  MA 02110-1301, USA.

  */
 
 #ifndef __PE_H
 #define __PE_H
 
 #include "clamav.h"

 #include "execs.h"

 #include "others.h"

 #include "cltypes.h"

 struct pe_image_file_hdr {
     uint32_t Magic;
     uint16_t Machine;
     uint16_t NumberOfSections;
     uint32_t TimeDateStamp;		    /* unreliable */
     uint32_t PointerToSymbolTable;	    /* debug */
     uint32_t NumberOfSymbols;		    /* debug */
     uint16_t SizeOfOptionalHeader;	    /* == 224 */
     uint16_t Characteristics;
 };
 
 struct pe_image_data_dir {
     uint32_t VirtualAddress;
     uint32_t Size;
 };
 

 struct pe_image_optional_hdr32 {

     uint16_t Magic;
     uint8_t  MajorLinkerVersion;		    /* unreliable */
     uint8_t  MinorLinkerVersion;		    /* unreliable */
     uint32_t SizeOfCode;			    /* unreliable */
     uint32_t SizeOfInitializedData;		    /* unreliable */
     uint32_t SizeOfUninitializedData;		    /* unreliable */
     uint32_t AddressOfEntryPoint;
     uint32_t BaseOfCode;
     uint32_t BaseOfData;
     uint32_t ImageBase;				    /* multiple of 64 KB */
     uint32_t SectionAlignment;			    /* usually 32 or 4096 */
     uint32_t FileAlignment;			    /* usually 32 or 512 */
     uint16_t MajorOperatingSystemVersion;	    /* not used */
     uint16_t MinorOperatingSystemVersion;	    /* not used */
     uint16_t MajorImageVersion;			    /* unreliable */
     uint16_t MinorImageVersion;			    /* unreliable */
     uint16_t MajorSubsystemVersion;
     uint16_t MinorSubsystemVersion;
     uint32_t Win32VersionValue;			    /* ? */
     uint32_t SizeOfImage;
     uint32_t SizeOfHeaders;
     uint32_t CheckSum;				    /* NT drivers only */
     uint16_t Subsystem;
     uint16_t DllCharacteristics;
     uint32_t SizeOfStackReserve;
     uint32_t SizeOfStackCommit;
     uint32_t SizeOfHeapReserve;
     uint32_t SizeOfHeapCommit;
     uint32_t LoaderFlags;			    /* ? */

     uint32_t NumberOfRvaAndSizes;		    /* unreliable */
     struct pe_image_data_dir DataDirectory[16];
 };
 
 struct pe_image_optional_hdr64 {
     uint16_t Magic;
     uint8_t  MajorLinkerVersion;		    /* unreliable */
     uint8_t  MinorLinkerVersion;		    /* unreliable */
     uint32_t SizeOfCode;			    /* unreliable */
     uint32_t SizeOfInitializedData;		    /* unreliable */
     uint32_t SizeOfUninitializedData;		    /* unreliable */
     uint32_t AddressOfEntryPoint;
     uint32_t BaseOfCode;
     uint64_t ImageBase;				    /* multiple of 64 KB */
     uint32_t SectionAlignment;			    /* usually 32 or 4096 */
     uint32_t FileAlignment;			    /* usually 32 or 512 */
     uint16_t MajorOperatingSystemVersion;	    /* not used */
     uint16_t MinorOperatingSystemVersion;	    /* not used */
     uint16_t MajorImageVersion;			    /* unreliable */
     uint16_t MinorImageVersion;			    /* unreliable */
     uint16_t MajorSubsystemVersion;
     uint16_t MinorSubsystemVersion;
     uint32_t Win32VersionValue;			    /* ? */
     uint32_t SizeOfImage;
     uint32_t SizeOfHeaders;
     uint32_t CheckSum;				    /* NT drivers only */
     uint16_t Subsystem;
     uint16_t DllCharacteristics;
     uint64_t SizeOfStackReserve;
     uint64_t SizeOfStackCommit;
     uint64_t SizeOfHeapReserve;
     uint64_t SizeOfHeapCommit;
     uint32_t LoaderFlags;			    /* ? */

     uint32_t NumberOfRvaAndSizes;		    /* unreliable */
     struct pe_image_data_dir DataDirectory[16];
 };
 
 struct pe_image_section_hdr {
     uint8_t Name[8];			    /* may not end with NULL */
     /*
     union {
 	uint32_t PhysicalAddress;
 	uint32_t VirtualSize;
     } AddrSize;
     */
     uint32_t VirtualSize;
     uint32_t VirtualAddress;
     uint32_t SizeOfRawData;		    /* multiple of FileAlignment */
     uint32_t PointerToRawData;		    /* offset to the section's data */
     uint32_t PointerToRelocations;	    /* object files only */
     uint32_t PointerToLinenumbers;	    /* object files only */
     uint16_t NumberOfRelocations;	    /* object files only */
     uint16_t NumberOfLinenumbers;	    /* object files only */
     uint32_t Characteristics;
 };
 

 int cli_scanpe(int desc, cli_ctx *ctx);

 int cli_peheader(int desc, struct cli_exe_info *peinfo);

 #endif