text: /*
   *  Copyright (C) 2013-2020 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
   *  Copyright (C) 2007-2013 Sourcefire, Inc.
   *
   *  Authors: Alberto Wu, Tomasz Kojm, Andrew Williams
   *
   *  Acknowledgements: The header structures were based upon a PE format
   *                    analysis by B. Luevelsmeyer.
   *
   *  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_STRUCTS_H
  #define __PE_STRUCTS_H
  
  #include "clamav.h"
  
  /** @file */
  /** Header for this PE file
   * \group_pe */
  struct pe_image_file_hdr {
      uint32_t Magic;                /**< PE magic header: PE\\0\\0 */
      uint16_t Machine;              /**< CPU this executable runs on, see libclamav/pe.c for possible values */
      uint16_t NumberOfSections;     /**< Number of sections in this executable */
      uint32_t TimeDateStamp;        /**< Unreliable */
      uint32_t PointerToSymbolTable; /**< debug */
      uint32_t NumberOfSymbols;      /**< debug */
      uint16_t SizeOfOptionalHeader; /**< == 224 */
      uint16_t Characteristics;
  };
  
  /** PE data directory header
   * \group_pe
   */
  struct pe_image_data_dir {
      uint32_t VirtualAddress;
      uint32_t Size;
  };
  
  /** 32-bit PE optional header
   * \group_pe
   */
  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;
      //struct pe_image_data_dir DataDirectory[16];
  };
  
  /** PE 64-bit optional header
   * \group_pe
   */
  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;
      //struct pe_image_data_dir DataDirectory[16];
  };
  
  /** PE section header
   * \group_pe
   */
  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;
  };
  
  #define WIN_CERT_REV_2 0x0200
  #define WIN_CERT_TYPE_PKCS7 0x0002
  
  /** PE authenticode data header
   * \group_pe
   */
  struct pe_certificate_hdr {
      uint32_t length; /** length of the certificate data, including the header */
      uint16_t revision;
      uint16_t type;
  };
  
  #endif