/*
    libpe - the PE library

    Copyright (C) 2010 - 2015 libpe authors
    
    This file is part of libpe.

    libpe is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    libpe 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with libpe.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef LIBPE_SECTIONS_H
#define LIBPE_SECTIONS_H

#include <inttypes.h>

#define SECTION_NAME_SIZE 8

typedef enum {
	IMAGE_SCN_TYPE_NO_PAD				= 0x00000008, // Obsolete. Replaced by IMAGE_SCN_ALIGN_1BYTES
	IMAGE_SCN_CNT_CODE					= 0x00000020,
	IMAGE_SCN_CNT_INITIALIZED_DATA		= 0x00000040,
	IMAGE_SCN_CNT_UNINITIALIZED_DATA	= 0x00000080,
	IMAGE_SCN_LNK_OTHER					= 0x00000100, // Reserved.
	IMAGE_SCN_LNK_INFO					= 0x00000200, // Valid only for object files.
	IMAGE_SCN_LNK_REMOVE				= 0x00000800, // Valid only for object files.
	IMAGE_SCN_LNK_COMDAT				= 0x00001000, // Valid only for object files.
	IMAGE_SCN_NO_DEFER_SPEC_EXC			= 0x00004000,
	IMAGE_SCN_GPREL						= 0x00008000,
	IMAGE_SCN_MEM_PURGEABLE				= 0x00020000, // Reserved.
	IMAGE_SCN_MEM_LOCKED				= 0x00040000, // Reserved.
	IMAGE_SCN_MEM_PRELOAD				= 0x00080000, // Reserved.
	IMAGE_SCN_ALIGN_1BYTES				= 0x00100000, // Valid only for object files.
	IMAGE_SCN_ALIGN_2BYTES				= 0x00200000, // Valid only for object files.
	IMAGE_SCN_ALIGN_4BYTES				= 0x00300000, // Valid only for object files.
	IMAGE_SCN_ALIGN_8BYTES				= 0x00400000, // Valid only for object files.
	IMAGE_SCN_ALIGN_16BYTES				= 0x00500000, // Valid only for object files.
	IMAGE_SCN_ALIGN_32BYTES				= 0x00600000, // Valid only for object files.
	IMAGE_SCN_ALIGN_64BYTES				= 0x00700000, // Valid only for object files.
	IMAGE_SCN_ALIGN_128BYTES			= 0x00800000, // Valid only for object files.
	IMAGE_SCN_ALIGN_256BYTES			= 0x00900000, // Valid only for object files.
	IMAGE_SCN_ALIGN_512BYTES			= 0x00A00000, // Valid only for object files.
	IMAGE_SCN_ALIGN_1024BYTES			= 0x00B00000, // Valid only for object files.
	IMAGE_SCN_ALIGN_2048BYTES			= 0x00C00000, // Valid only for object files.
	IMAGE_SCN_ALIGN_4096BYTES			= 0x00D00000, // Valid only for object files.
	IMAGE_SCN_ALIGN_8192BYTES			= 0x00E00000, // Valid only for object files.
	IMAGE_SCN_LNK_NRELOC_OVFL			= 0x01000000,
	IMAGE_SCN_MEM_DISCARDABLE			= 0x02000000,
	IMAGE_SCN_MEM_NOT_CACHED			= 0x04000000,
	IMAGE_SCN_MEM_NOT_PAGED				= 0x08000000,
	IMAGE_SCN_MEM_SHARED				= 0x10000000,
	IMAGE_SCN_MEM_EXECUTE				= 0x20000000,
	IMAGE_SCN_MEM_READ					= 0x40000000,
	IMAGE_SCN_MEM_WRITE					= -2147483648 // Same as 0x80000000
} SectionCharacteristics;

#pragma pack(push, 1)

// Quoting pecoff_v8.docx: "Entries in the section table are numbered starting from one (1)".
typedef struct {
	uint8_t Name[SECTION_NAME_SIZE]; // TODO: Should we use char instead?
	union {
		uint32_t PhysicalAddress; // same value as next field
		uint32_t VirtualSize;
	} Misc;
	uint32_t VirtualAddress;
	uint32_t SizeOfRawData;
	uint32_t PointerToRawData;
	uint32_t PointerToRelocations; // always zero in executables
	uint32_t PointerToLinenumbers; // deprecated
	uint16_t NumberOfRelocations;
	uint16_t NumberOfLinenumbers; // deprecated
	uint32_t Characteristics; // SectionCharacteristics
} IMAGE_SECTION_HEADER;

#pragma pack(pop)

#endif
