/*      $OpenBSD: cd9660_eltorito.h,v 1.4 2017/10/31 13:36:23 yasuoka Exp $     */
/*      $NetBSD: cd9660_eltorito.h,v 1.5 2009/07/04 14:31:38 ahoka Exp $        */

/*
 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
 * Perez-Rathke and Ram Vedam.  All rights reserved.
 *
 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
 * Alan Perez-Rathke and Ram Vedam.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 */

#ifndef _CD9660_ELTORITO_H_
#define _CD9660_ELTORITO_H_

/* Boot defines */
#define ET_ID           "EL TORITO SPECIFICATION"
#define ET_SYS_X86      0
#define ET_SYS_PPC      1
#define ET_SYS_MAC      2
#define ET_SYS_EFI      0xef

#define ET_BOOT_ENTRY_SIZE 0x20

#define ET_BOOTABLE             0x88
#define ET_NOT_BOOTABLE 0

#define ET_MEDIA_NOEM   0
#define ET_MEDIA_12FDD                  1
#define ET_MEDIA_144FDD                 2
#define ET_MEDIA_288FDD                 3
#define ET_MEDIA_HDD                    4

#define ET_INDICATOR_HEADERMORE 0x90
#define ET_INDICATOR_HEADERLAST 0x91
#define ET_INDICATOR_EXTENSION  0x44

/*** Boot Structures ***/

typedef struct _boot_volume_descriptor {
        u_char boot_record_indicator    [ISODCL(0x00,0x00)];
        u_char identifier               [ISODCL(0x01,0x05)];
        u_char version                  [ISODCL(0x06,0x06)];
        u_char boot_system_identifier   [ISODCL(0x07,0x26)];
        u_char unused1                  [ISODCL(0x27,0x46)];
        u_char boot_catalog_pointer     [ISODCL(0x47,0x4A)];
        u_char unused2                  [ISODCL(0x4B,0x7FF)];
} boot_volume_descriptor;

typedef struct _boot_catalog_validation_entry {
        u_char header_id                [ISODCL(0x00,0x00)];
        u_char platform_id              [ISODCL(0x01,0x01)];
        u_char reserved1                [ISODCL(0x02,0x03)];
        u_char manufacturer             [ISODCL(0x04,0x1B)];
        u_char checksum                 [ISODCL(0x1C,0x1D)];
        u_char key                      [ISODCL(0x1E,0x1F)];
} boot_catalog_validation_entry;

typedef struct _boot_catalog_initial_entry {
        u_char boot_indicator           [ISODCL(0x00,0x00)];
        u_char media_type               [ISODCL(0x01,0x01)];
        u_char load_segment             [ISODCL(0x02,0x03)];
        u_char system_type              [ISODCL(0x04,0x04)];
        u_char unused_1                 [ISODCL(0x05,0x05)];
        u_char sector_count             [ISODCL(0x06,0x07)];
        u_char load_rba                 [ISODCL(0x08,0x0B)];
        u_char unused_2                 [ISODCL(0x0C,0x1F)];
} boot_catalog_initial_entry;

#define ET_SECTION_HEADER_MORE          0x90
#define ET_SECTION_HEADER_LAST          0x91

typedef struct _boot_catalog_section_header {
        u_char header_indicator         [ISODCL(0x00,0x00)];
        u_char platform_id              [ISODCL(0x01,0x01)];
        u_char num_section_entries      [ISODCL(0x02,0x03)];
        u_char id_string                [ISODCL(0x04,0x1F)];
} boot_catalog_section_header;

typedef struct _boot_catalog_section_entry {
        u_char boot_indicator           [ISODCL(0x00,0x00)];
        u_char media_type               [ISODCL(0x01,0x01)];
        u_char load_segment             [ISODCL(0x02,0x03)];
        u_char system_type              [ISODCL(0x04,0x04)];
        u_char unused_1                 [ISODCL(0x05,0x05)];
        u_char sector_count             [ISODCL(0x06,0x07)];
        u_char load_rba                 [ISODCL(0x08,0x0B)];
        u_char selection_criteria       [ISODCL(0x0C,0x0C)];
        u_char vendor_criteria          [ISODCL(0x0D,0x1F)];
} boot_catalog_section_entry;

typedef struct _boot_catalog_section_entry_extension {
        u_char extension_indicator      [ISODCL(0x00,0x00)];
        u_char flags                    [ISODCL(0x01,0x01)];
        u_char vendor_criteria          [ISODCL(0x02,0x1F)];
} boot_catalog_section_entry_extension;

#define ET_ENTRY_VE 1
#define ET_ENTRY_IE 2
#define ET_ENTRY_SH 3
#define ET_ENTRY_SE 4
#define ET_ENTRY_EX 5

struct boot_catalog_entry {
        char entry_type;
        union {
                boot_catalog_validation_entry           VE;
                boot_catalog_initial_entry              IE;
                boot_catalog_section_header             SH;
                boot_catalog_section_entry              SE;
                boot_catalog_section_entry_extension    EX;
        } entry_data;

        LIST_ENTRY(boot_catalog_entry) ll_struct;
};

/* Temporary structure */
struct cd9660_boot_image {
        char *filename;
        int size;
        int sector;                     /* copied to LoadRBA */
        int num_sectors;
        unsigned int loadSegment;
        u_char targetMode;
        u_char system;
        u_char bootable;
        /*
         * If the boot image exists in the filesystem
         * already, this is a pointer to that node. For the sake
         * of simplicity in future versions, this pointer is only
         * to the node in the primary volume. This SHOULD be done
         * via a hashtable lookup.
         */
        struct _cd9660node *boot_image_node;
        TAILQ_ENTRY(cd9660_boot_image) image_list;
        int serialno;
};


#endif /* _CD9660_ELTORITO_H_ */