disk/part_iso.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * (C) Copyright 2001
   4  * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch.
   5  */
   6 #ifndef _PART_CD_H
   7 #define _PART_CD_H
   8
   9 #define BRVD    0x11
  10 #define PVD_OFFSET 0x10
  11
  12
  13 typedef struct iso_boot_rec {
  14         unsigned char desctype;                 /* type of Volume descriptor: 0 = boot record, 1 = primary, 2 = Supplement, 3 = volume part 0xff trminator */
  15         unsigned char stand_ident[5]; /* "CD001" */
  16         unsigned char vers;                                     /* Version */
  17         char                                    ident_str[0x20]; /* Ident String "EL TORITO SPECIFICATION" */
  18         unsigned char unused[0x20];             /* unused */
  19         unsigned char pointer[4];               /* absolute pointer to Boot Catalog */
  20 } iso_boot_rec_t;
  21
  22
  23 typedef struct iso_pri_rec {
  24         unsigned char desctype;                 /* type of Volume descriptor: 0 = boot record, 1 = primary, 2 = Supplement, 3 = volume part 0xff trminator */
  25         unsigned char stand_ident[5]; /* "CD001" */
  26         unsigned char vers;                                     /* Version */
  27         unsigned char unused;
  28         char                                    sysid[32];              /* system Identifier */
  29         char                                    volid[32];              /* volume Identifier */
  30         unsigned char zeros1[8];                /* unused */
  31         unsigned int volsiz_LE;         /* volume size Little Endian */
  32         unsigned int volsiz_BE;         /* volume size Big Endian */
  33         unsigned char zeros2[32];               /* unused */
  34         unsigned short setsize_LE;      /* volume set size LE */
  35         unsigned short setsize_BE;      /* volume set size BE */
  36         unsigned short seqnum_LE;               /* volume sequence number LE */
  37         unsigned short seqnum_BE;               /* volume sequence number BE */
  38         unsigned short secsize_LE;      /* sector size LE */
  39         unsigned short secsize_BE;      /* sector size BE */
  40         unsigned int pathtablen_LE;/* Path Table size LE */
  41         unsigned int pathtablen_BE;/* Path Table size BE */
  42         unsigned int firstsek_LEpathtab1_LE; /* location of first occurrence of little endian type path table */
  43         unsigned int firstsek_LEpathtab2_LE; /* location of optional occurrence of little endian type path table */
  44         unsigned int firstsek_BEpathtab1_BE; /* location of first occurrence of big endian type path table */
  45         unsigned int firstsek_BEpathtab2_BE; /* location of optional occurrence of big endian type path table */
  46         unsigned char rootdir[34];      /* directory record for root dir */
  47         char                                    volsetid[128];/* Volume set identifier */
  48         char                                    pubid[128];             /* Publisher identifier */
  49         char                                    dataprepid[128]; /* data preparer identifier */
  50         char                                    appid[128];             /* application identifier */
  51         char                                    copyr[37];              /* copyright string */
  52         char                                    abstractfileid[37]; /* abstract file identifier */
  53         char                                    bibliofileid[37]; /* bibliographic file identifier */
  54         unsigned char creationdate[17]; /* creation date */
  55         unsigned char modify[17];               /* modification date */
  56         unsigned char expire[17];               /* expiring date */
  57         unsigned char effective[17];/* effective date */
  58         unsigned char filestruc_ver;    /* file structur version */
  59 } iso_pri_rec_t;
  60
  61 typedef struct iso_sup_rec {
  62         unsigned char desctype;                 /* type of Volume descriptor: 0 = boot record, 1 = primary, 2 = Supplement, 3 = volume part 0xff trminator */
  63         unsigned char stand_ident[5]; /* "CD001" */
  64         unsigned char vers;                                     /* Version */
  65         unsigned char volumeflags;      /* if bit 0 = 0 => all escape sequences are according ISO 2375 */
  66         char                                    sysid[32];              /* system Identifier */
  67         char                                    volid[32];              /* volume Identifier */
  68         unsigned char zeros1[8];                /* unused */
  69         unsigned int volsiz_LE;         /* volume size Little Endian */
  70         unsigned int volsiz_BE;         /* volume size Big Endian */
  71         unsigned char escapeseq[32];/* Escape sequences */
  72         unsigned short setsize_LE;      /* volume set size LE */
  73         unsigned short setsize_BE;      /* volume set size BE */
  74         unsigned short seqnum_LE;               /* volume sequence number LE */
  75         unsigned short seqnum_BE;               /* volume sequence number BE */
  76         unsigned short secsize_LE;      /* sector size LE */
  77         unsigned short secsize_BE;      /* sector size BE */
  78         unsigned int pathtablen_LE;/* Path Table size LE */
  79         unsigned int pathtablen_BE;/* Path Table size BE */
  80         unsigned int firstsek_LEpathtab1_LE; /* location of first occurrence of little endian type path table */
  81         unsigned int firstsek_LEpathtab2_LE; /* location of optional occurrence of little endian type path table */
  82         unsigned int firstsek_BEpathtab1_BE; /* location of first occurrence of big endian type path table */
  83         unsigned int firstsek_BEpathtab2_BE; /* location of optional occurrence of big endian type path table */
  84         unsigned char rootdir[34];      /* directory record for root dir */
  85         char                                    volsetid[128];/* Volume set identifier */
  86         char                                    pubid[128];             /* Publisher identifier */
  87         char                                    dataprepid[128]; /* data preparer identifier */
  88         char                                    appid[128];             /* application identifier */
  89         char                                    copyr[37];              /* copyright string */
  90         char                                    abstractfileid[37]; /* abstract file identifier */
  91         char                                    bibliofileid[37]; /* bibliographic file identifier */
  92         unsigned char creationdate[17]; /* creation date */
  93         unsigned char modify[17];               /* modification date */
  94         unsigned char expire[17];               /* expiring date */
  95         unsigned char effective[17];/* effective date */
  96         unsigned char filestruc_ver;    /* file structur version */
  97 }iso_sup_rec_t;
  98
  99 typedef struct iso_part_rec {
 100         unsigned char desctype;                 /* type of Volume descriptor: 0 = boot record, 1 = primary, 2 = Supplement, 3 = volume part 0xff trminator */
 101         unsigned char stand_ident[5]; /* "CD001" */
 102         unsigned char vers;                                     /* Version */
 103         unsigned char unused;
 104         char                                    sysid[32];               /* system Identifier */
 105         char                                    volid[32];              /* volume partition Identifier */
 106         unsigned int partloc_LE;                /* volume partition location LE */
 107         unsigned int partloc_BE;                /* volume partition location BE */
 108         unsigned int partsiz_LE;                /* volume partition size LE */
 109         unsigned int partsiz_BE;                /* volume partition size BE */
 110 }iso_part_rec_t;
 111
 112
 113 typedef struct iso_val_entry {
 114         unsigned char   header_id;              /* Header ID must be 0x01 */
 115         unsigned char   platform;                       /* Platform: 0=x86, 1=PowerPC, 2=MAC */
 116         unsigned char res[2];                           /* reserved */
 117         char                                    manu_str[0x18]; /* Ident String of manufacturer/developer */
 118         unsigned char chk_sum[2];       /* Check sum (all words must be zero)  */
 119         unsigned char key[2];                           /* key[0]=55, key[1]=0xAA */
 120 } iso_val_entry_t;
 121
 122 typedef struct iso_header_entry {
 123         unsigned char   header_id;              /* Header ID must be 0x90 or 0x91 */
 124         unsigned char   platform;                       /* Platform: 0=x86, 1=PowerPC, 2=MAC */
 125         unsigned char numentry[2];      /* number of entries */
 126         char                                    id_str[0x1C]; /* Ident String of sectionr */
 127 } iso_header_entry_t;
 128
 129
 130 typedef struct iso_init_def_entry {
 131         unsigned char   boot_ind;                       /* Boot indicator 0x88=bootable 0=not bootable */
 132         unsigned char   boot_media;             /* boot Media Type: 0=no Emulation, 1=1.2MB floppy, 2=1.44MB floppy, 3=2.88MB floppy 4=hd (0x80) */
 133         unsigned char ld_seg[2];                /* Load segment (flat model=addr/10) */
 134         unsigned char systype;                  /* System Type copy of byte5 of part table */
 135         unsigned char res;                                      /* reserved */
 136         unsigned char sec_cnt[2];               /* sector count in VIRTUAL Blocks (0x200) */
 137         unsigned char rel_block_addr[4];        /* relative Block address */
 138 } iso_init_def_entry_t;
 139
 140
 141 void print_partition_cd(int dev);
 142
 143 #endif /* _PART_CD_H */