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2017-6-15 下午02:18:16 (7 年 以前)
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vboxsync
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iprt/formats/iso9660.h: Added El Torito related stuff.

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  • trunk/include/iprt/formats/iso9660.h

    r67339 r67426  
    361361} ISO9660BOOTRECORD;
    362362AssertCompileSize(ISO9660BOOTRECORD, ISO9660_SECTOR_SIZE);
    363 /** Pointer to a ISO 9660 boot record. */
     363/** Pointer to an ISO 9660 boot record. */
    364364typedef ISO9660BOOTRECORD *PISO9660BOOTRECORD;
    365365/** Pointer to a const ISO 9660 boot record. */
    … …  
    369369#define ISO9660BOOTRECORD_VERSION           UINT8_C(1)
    370370
     371
     372/**
     373 * ISO 9660 boot record (volume descriptor), El Torito variant.
     374 */
     375#pragma pack(1)
     376typedef struct ISO9660BOOTRECORDELTORITO
     377{
     378    /** 0x000: The volume descriptor header.
     379     * Type is ISO9660VOLDESC_TYPE_BOOT_RECORD and version
     380     * ISO9660BOOTRECORD_VERSION. */
     381    ISO9660VOLDESCHDR   Hdr;
     382    /** 0x007: Boot system identifier string,
     383     * zero padded ISO9660BOOTRECORDELTORITO_BOOT_SYSTEM_ID. */
     384    char                achBootSystemId[32];
     385    /** 0x027: Boot identifier - all zeros. */
     386    char                achBootId[32];
     387    /** 0x047: Boot catalog location (block offset), always (?) little endian.
     388     * @note Misaligned. */
     389    uint32_t            offBootCatalog;
     390    /** 0x04b: Unused - all zeros. */
     391    uint8_t             abBootSystemSpecific[1973];
     392} ISO9660BOOTRECORDELTORITO;
     393#pragma pack()
     394AssertCompileSize(ISO9660BOOTRECORDELTORITO, ISO9660_SECTOR_SIZE);
     395/** Pointer to an ISO 9660 El Torito boot record. */
     396typedef ISO9660BOOTRECORDELTORITO *PISO9660BOOTRECORDELTORITO;
     397/** Pointer to a const ISO 9660 El Torito boot record. */
     398typedef ISO9660BOOTRECORDELTORITO const *PCISO9660BOOTRECORDELTORITO;
     399
     400/** The value of ISO9660BOOTRECORDELTORITO::achBootSystemId (zero padded). */
     401#define ISO9660BOOTRECORDELTORITO_BOOT_SYSTEM_ID    "EL TORITO SPECIFICATION"
    371402
    372403
    … …  
    630661
    631662
     663/**
     664 * El Torito boot catalog: Validation entry.
     665 *
     666 * This is the first entry in the boot catalog.  It is followed by a
     667 * ISO9660ELTORITODEFAULTENTRY, which in turn is followed by a
     668 * ISO9660ELTORITOSECTIONHEADER.
     669 */
     670typedef struct ISO9660ELTORITOVALIDATIONENTRY
     671{
     672    /** 0x00: The header ID (ISO9660_ELTORITO_HEADER_ID_VALIDATION_ENTRY). */
     673    uint8_t             bHeaderId;
     674    /** 0x01: The platform ID (ISO9660_ELTORITO_PLATFORM_ID_XXX). */
     675    uint8_t             bPlatformId;
     676    /** 0x02: Reserved, MBZ. */
     677    uint16_t            u16Reserved;
     678    /** 0x04: String ID of the developer of the CD/DVD-ROM. */
     679    char                achId[24];
     680    /** 0x1c: The checksum. */
     681    uint16_t            u16Checksum;
     682    /** 0x1e: Key byte 1 (ISO9660_ELTORITO_KEY_BYTE_1). */
     683    uint8_t             bKey1;
     684    /** 0x1f: Key byte 2 (ISO9660_ELTORITO_KEY_BYTE_2). */
     685    uint8_t             bKey2;
     686} ISO9660ELTORITOVALIDATIONENTRY;
     687AssertCompileSize(ISO9660ELTORITOVALIDATIONENTRY, 0x20);
     688/** Pointer to an El Torito validation entry. */
     689typedef ISO9660ELTORITOVALIDATIONENTRY *PISO9660ELTORITOVALIDATIONENTRY;
     690/** Pointer to a const El Torito validation entry. */
     691typedef ISO9660ELTORITOVALIDATIONENTRY const *PCISO9660ELTORITOVALIDATIONENTRY;
     692
     693/** ISO9660ELTORITOVALIDATIONENTRY::bKey1 value. */
     694#define ISO9660_ELTORITO_KEY_BYTE_1         UINT8_C(0x55)
     695/** ISO9660ELTORITOVALIDATIONENTRY::bKey2 value. */
     696#define ISO9660_ELTORITO_KEY_BYTE_2         UINT8_C(0xaa)
     697
     698
     699/** @name ISO9660_ELTORITO_HEADER_ID_XXX - header IDs.
     700 * @{ */
     701/** Header ID for a ISO9660ELTORITOVALIDATIONENTRY. */
     702#define ISO9660_ELTORITO_HEADER_ID_VALIDATION_ENTRY UINT8_C(0x01)
     703/** Header ID for a ISO9660ELTORITOSECTIONHEADER. */
     704#define ISO9660_ELTORITO_HEADER_ID_SECTION_HEADER       UINT8_C(0x90)
     705/** Header ID for the final ISO9660ELTORITOSECTIONHEADER. */
     706#define ISO9660_ELTORITO_HEADER_ID_FINAL_SECTION_HEADER UINT8_C(0x91)
     707/** @} */
     708
     709
     710/** @name ISO9660_ELTORITO_PLATFORM_ID_XXX - El Torito Platform IDs
     711 * @{ */
     712#define ISO9660_ELTORITO_PLATFORM_ID_X86    UINT8_C(0x00)   /**< 80x86 */
     713#define ISO9660_ELTORITO_PLATFORM_ID_PPC    UINT8_C(0x01)   /**< PowerPC */
     714#define ISO9660_ELTORITO_PLATFORM_ID_MAC    UINT8_C(0x02)   /**< Mac */
     715#define ISO9660_ELTORITO_PLATFORM_ID_EFI    UINT8_C(0xef)   /**< UEFI */
     716/** @} */
     717
     718
     719/**
     720 * El Torito boot catalog: Section header entry.
     721 *
     722 * A non-final section header entry is followed by
     723 * ISO9660ELTORITOSECTIONHEADER::cEntries ISO9660ELTORITOSECTIONTENTRY instances.
     724 */
     725typedef struct ISO9660ELTORITOSECTIONHEADER
     726{
     727    /** 0x00: Header ID - ISO9660_ELTORITO_HEADER_ID_SECTION_HEADER or
     728     * ISO9660_ELTORITO_HEADER_ID_FINAL_SECTION_HEADER (if final). */
     729    uint8_t             bHeaderId;
     730    /** 0x01: The platform ID (ISO9660_ELTORITO_PLATFORM_ID_XXX). */
     731    uint8_t             bPlatformId;
     732    /** 0x02: Number of entries in this section (i.e. following this header). */
     733    uint16_t            cEntries;
     734    /** 0x04: String ID for the section. */
     735    char                achSectionId[28];
     736} ISO9660ELTORITOSECTIONHEADER;
     737AssertCompileSize(ISO9660ELTORITOSECTIONHEADER, 0x20);
     738/** Pointer to an El Torito section header entry. */
     739typedef ISO9660ELTORITOSECTIONHEADER *PISO9660ELTORITOSECTIONHEADER;
     740/** Pointer to a const El Torito section header entry. */
     741typedef ISO9660ELTORITOSECTIONHEADER const *PCISO9660ELTORITOSECTIONHEADER;
     742
     743
     744/**
     745 * El Torito boot catalog: Default (initial) entry.
     746 *
     747 * Followed by ISO9660ELTORITOSECTIONHEADER.
     748 *
     749 * Differs from ISO9660ELTORITOSECTIONENTRY in that it doesn't have a
     750 * selection criteria and no media flags (only type).
     751 */
     752typedef struct ISO9660ELTORITODEFAULTENTRY
     753{
     754    /** 0x00: Boot indicator (ISO9660_ELTORITO_BOOT_INDICATOR_XXX). */
     755    uint8_t             bBootIndicator;
     756    /** 0x01: Boot media type.  The first four bits are defined by
     757     * ISO9660_ELTORITO_BOOT_MEDIA_TYPE_XXX, whereas the top four bits MBZ. */
     758    uint8_t             bBootMediaType;
     759    /** 0x02: Load segment - load address divided by 0x10. */
     760    uint16_t            uLoadSeg;
     761    /** 0x04: System type from image partition table. */
     762    uint8_t             bSystemType;
     763    /** 0x05: Unused, MBZ. */
     764    uint8_t             bUnused;
     765    /** 0x06: Number of emulated 512 byte sectors to load. */
     766    uint16_t            cEmulatedSectorsToLoad;
     767    /** 0x08: Image location in the ISO (block offset), always (?) little endian. */
     768    uint32_t            offBootImage;
     769    /** 0x0c: Reserved, MBZ */
     770    uint8_t             abReserved[20];
     771} ISO9660ELTORITODEFAULTENTRY;
     772AssertCompileSize(ISO9660ELTORITODEFAULTENTRY, 0x20);
     773/** Pointer to an El Torito default (initial) entry. */
     774typedef ISO9660ELTORITODEFAULTENTRY *PISO9660ELTORITODEFAULTENTRY;
     775/** Pointer to a const El Torito default (initial) entry. */
     776typedef ISO9660ELTORITODEFAULTENTRY const *PCISO9660ELTORITODEFAULTENTRY;
     777
     778
     779/**
     780 * El Torito boot catalg: Section entry.
     781 */
     782typedef struct ISO9660ELTORITOSECTIONENTRY
     783{
     784    /** 0x00: Boot indicator (ISO9660_ELTORITO_BOOT_INDICATOR_XXX). */
     785    uint8_t             bBootIndicator;
     786    /** 0x01: Boot media type and flags.  The first four bits are defined by
     787     * ISO9660_ELTORITO_BOOT_MEDIA_TYPE_XXX and the top four bits by
     788     * ISO9660_ELTORITO_BOOT_MEDIA_F_XXX. */
     789    uint8_t             bBootMediaType;
     790    /** 0x02: Load segment - load address divided by 0x10. */
     791    uint16_t            uLoadSeg;
     792    /** 0x04: System type from image partition table. */
     793    uint8_t             bSystemType;
     794    /** 0x05: Unused, MBZ. */
     795    uint8_t             bUnused;
     796    /** 0x06: Number of emulated 512 byte sectors to load. */
     797    uint16_t            cEmulatedSectorsToLoad;
     798    /** 0x08: Image location in the ISO (block offset), always (?) little endian. */
     799    uint32_t            offBootImage;
     800    /** 0x0c: Selection criteria type (ISO9660_ELTORITO_SEL_CRIT_TYPE_XXX). */
     801    uint8_t             bSelectionCriteriaType;
     802    /** 0x0c: Selection criteria specific data. */
     803    uint8_t             abSelectionCriteria[19];
     804} ISO9660ELTORITOSECTIONENTRY;
     805AssertCompileSize(ISO9660ELTORITOSECTIONENTRY, 0x20);
     806/** Pointer to an El Torito default (initial) entry. */
     807typedef ISO9660ELTORITOSECTIONENTRY *PISO9660ELTORITOSECTIONENTRY;
     808/** Pointer to a const El Torito default (initial) entry. */
     809typedef ISO9660ELTORITOSECTIONENTRY const *PCISO9660ELTORITOSECTIONENTRY;
     810
     811
     812/** @name  ISO9660_ELTORITO_BOOT_INDICATOR_XXX - Boot indicators.
     813 * @{ */
     814#define ISO9660_ELTORITO_BOOT_INDICATOR_BOOTABLE        UINT8_C(0x88)
     815#define ISO9660_ELTORITO_BOOT_INDICATOR_NOT_BOOTABLE    UINT8_C(0x00)
     816/** @} */
     817
     818/** @name ISO9660_ELTORITO_BOOT_MEDIA_TYPE_XXX - Boot media types.
     819 * @{ */
     820#define ISO9660_ELTORITO_BOOT_MEDIA_TYPE_NO_EMULATION   UINT8_C(0x0)
     821#define ISO9660_ELTORITO_BOOT_MEDIA_TYPE_FLOPPY_1_2_MB  UINT8_C(0x1)
     822#define ISO9660_ELTORITO_BOOT_MEDIA_TYPE_FLOPPY_1_44_MB UINT8_C(0x2)
     823#define ISO9660_ELTORITO_BOOT_MEDIA_TYPE_FLOPPY_2_88_MB UINT8_C(0x3)
     824#define ISO9660_ELTORITO_BOOT_MEDIA_TYPE_HARD_DISK      UINT8_C(0x4)
     825#define ISO9660_ELTORITO_BOOT_MEDIA_TYPE_MASK           UINT8_C(0xf) /**< The media type mask. */
     826/** @} */
     827
     828/** @name ISO9660_ELTORITO_BOOT_MEDIA_F_XXX - Boot media flags.
     829 * These only applies to the section entry, not to the default (initial) entry.
     830 * @{ */
     831#define ISO9660_ELTORITO_BOOT_MEDIA_F_RESERVED          UINT8_C(0x10) /**< Reserved bit, MBZ. */
     832#define ISO9660_ELTORITO_BOOT_MEDIA_F_CONTINUATION      UINT8_C(0x20) /**< Contiunation entry follows. */
     833#define ISO9660_ELTORITO_BOOT_MEDIA_F_ATAPI_DRIVER      UINT8_C(0x40) /**< Image contains an ATAPI driver. */
     834#define ISO9660_ELTORITO_BOOT_MEDIA_F_SCSI_DRIVERS      UINT8_C(0x80) /**< Image contains SCSI drivers. */
     835#define ISO9660_ELTORITO_BOOT_MEDIA_F_MASK              UINT8_C(0xf0) /**< The media/entry flag mask. */
     836/** @} */
     837
     838/** @name ISO9660_ELTORITO_SEL_CRIT_TYPE_XXX - Selection criteria type.
     839 * @{ */
     840#define ISO9660_ELTORITO_SEL_CRIT_TYPE_NONE             UINT8_C(0x00) /**< No selection criteria */
     841#define ISO9660_ELTORITO_SEL_CRIT_TYPE_LANG_AND_VERSION UINT8_C(0x01) /**< Language and version (IBM). */
     842/** @} */
     843
     844
     845/**
     846 * El Torito boot catalog: Section entry extension.
     847 *
     848 * This is used for carrying additional selection criteria data.  It follows
     849 * a ISO9660ELTORITOSECTIONENTRY.
     850 */
     851typedef struct ISO9660ELTORITOSECTIONENTRYEXT
     852{
     853    /** 0x00: Extension indicator (ISO9660_ELTORITO_SECTION_ENTRY_EXT_ID). */
     854    uint8_t             bExtensionId;
     855    /** 0x01: Selection criteria extension flags (ISO9660_ELTORITO_SECTION_ENTRY_EXT_F_XXX). */
     856    uint8_t             fFlags;
     857    /** 0x02: Selection critiera data. */
     858    uint8_t             abSelectionCriteria[30];
     859} ISO9660ELTORITOSECTIONENTRYEXT;
     860AssertCompileSize(ISO9660ELTORITOSECTIONENTRYEXT, 0x20);
     861/** Pointer to an El Torito default (initial) entry. */
     862typedef ISO9660ELTORITOSECTIONENTRYEXT *PISO9660ELTORITOSECTIONENTRYEXT;
     863/** Pointer to a const El Torito default (initial) entry. */
     864typedef ISO9660ELTORITOSECTIONENTRYEXT const *PCISO9660ELTORITOSECTIONENTRYEXT;
     865
     866/** Value of ISO9660ELTORITOSECTIONENTRYEXT::bExtensionId. */
     867#define ISO9660_ELTORITO_SECTION_ENTRY_EXT_ID   UINT_C(0x44)
     868
     869/** @name ISO9660_ELTORITO_SECTION_ENTRY_EXT_F_XXX - ISO9660ELTORITOSECTIONENTRYEXT::fFlags
     870 * @{ */
     871#define ISO9660_ELTORITO_SECTION_ENTRY_EXT_F_MORE           UINT8_C(0x20) /**< Further extension entries follows.  */
     872#define ISO9660_ELTORITO_SECTION_ENTRY_EXT_F_UNUSED_MASK    UINT8_C(0xef) /**< Mask of all unused bits. */
     873/** @} */
     874
     875
     876/**
     877 * Boot information table used by isolinux and GRUB2 El Torito boot files.
     878 */
     879typedef struct ISO9960SYSLINUXINFOTABLE
     880{
     881    /** 0x00/0x08: Offset of the primary volume descriptor (block offset). */
     882    uint32_t            offPrimaryVolDesc;
     883    /** 0x04/0x0c: Offset of the boot file (block offset). */
     884    uint32_t            offBootFile;
     885    /** 0x08/0x10: Size of the boot file in bytes. */
     886    uint32_t            cbBootFile;
     887    /** 0x0c/0x14: Boot file checksum.
     888     * This is the sum of all the 32-bit words in the image, start at the end of
     889     * this structure (i.e. offset 64). */
     890    uint32_t            uChecksum;
     891    /** 0x10/0x18: Reserved for future fun. */
     892    uint32_t            auReserved[10];
     893} ISO9960SYSLINUXINFOTABLE;
     894AssertCompileSize(ISO9960SYSLINUXINFOTABLE, 56);
     895/** Pointer to a syslinux boot information table.   */
     896typedef ISO9960SYSLINUXINFOTABLE *PISO9960SYSLINUXINFOTABLE;
     897/** Pointer to a const syslinux boot information table.   */
     898typedef ISO9960SYSLINUXINFOTABLE const *PCISO9960SYSLINUXINFOTABLE;
     899
    632900/** @} */
    633901
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