FreeBSD/Linux Kernel Cross Reference
sys/sys/disk/gpt.h

     /*-
      * Copyright (c) 2002 Marcel Moolenaar
      * All rights reserved.
      *
      * 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 THE AUTHOR ``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 THE AUTHOR 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _SYS_DISK_GPT_H_
    #define _SYS_DISK_GPT_H_
    
    #include <sys/types.h>
    
    /*
     * Applications can define GPT_UUID_TYPE if they want the GPT structures
     * to use a particular type definition for UUIDs/GUIDs.  This header uses
     * a generic (DCE 1.1 compatible) definition otherwise.
     */
    #ifndef GPT_UUID_TYPE
    struct gpt_uuid {
            uint32_t        time_low;
            uint16_t        time_mid;
            uint16_t        time_hi_and_version;
            uint8_t         clock_seq_hi_and_reserved;
            uint8_t         clock_seq_low;
            uint8_t         node[6];
    };
    #define GPT_UUID_TYPE   struct gpt_uuid
    #endif /* !GPT_UUID_TYPE */
    
    typedef GPT_UUID_TYPE gpt_uuid_t;
    
    #ifdef CTASSERT
    CTASSERT(sizeof(gpt_uuid_t) == 16);
    #endif
    
    struct gpt_hdr {
            char            hdr_sig[8];
    #define GPT_HDR_SIG             "EFI PART"
            uint32_t        hdr_revision;
    #define GPT_HDR_REVISION        0x00010000
            uint32_t        hdr_size;
            uint32_t        hdr_crc_self;
            uint32_t        __reserved;
            uint64_t        hdr_lba_self;
            uint64_t        hdr_lba_alt;
            uint64_t        hdr_lba_start;
            uint64_t        hdr_lba_end;
            gpt_uuid_t      hdr_uuid;
            uint64_t        hdr_lba_table;
            uint32_t        hdr_entries;
            uint32_t        hdr_entsz;
            uint32_t        hdr_crc_table;
            /*
             * The header as defined in the EFI spec is not a multiple of 8 bytes
             * and given that the alignment requirement is on an 8 byte boundary,
             * padding will happen. We make the padding explicit so that we can
             * correct the value returned by sizeof() when we put the size of the
             * header in field hdr_size, or otherwise use offsetof().
             */
            uint32_t        padding;
    };
    #ifdef CTASSERT
    CTASSERT(offsetof(struct gpt_hdr, padding) == 92);
    #endif
    
    struct gpt_ent {
            gpt_uuid_t      ent_type;
            gpt_uuid_t      ent_uuid;
            uint64_t        ent_lba_start;
            uint64_t        ent_lba_end;
            uint64_t        ent_attr;
    #define GPT_ENT_ATTR_PLATFORM           (1ULL << 0)
    #define GPT_ENT_ATTR_BOOTME             (1ULL << 59)
    #define GPT_ENT_ATTR_BOOTONCE           (1ULL << 58)
    #define GPT_ENT_ATTR_BOOTFAILED         (1ULL << 57)
            uint16_t        ent_name[36];           /* UTF-16. */
    };
    #ifdef CTASSERT
   CTASSERT(sizeof(struct gpt_ent) == 128);
   #endif /* CTASSERT */
   
   #define GPT_ENT_TYPE_UNUSED             \
           {0x00000000,0x0000,0x0000,0x00,0x00,{0x00,0x00,0x00,0x00,0x00,0x00}}
   #define GPT_ENT_TYPE_EFI                \
           {0xc12a7328,0xf81f,0x11d2,0xba,0x4b,{0x00,0xa0,0xc9,0x3e,0xc9,0x3b}}
   #define GPT_ENT_TYPE_MBR                \
           {0x024dee41,0x33e7,0x11d3,0x9d,0x69,{0x00,0x08,0xc7,0x81,0xf3,0x9f}}
   #define GPT_ENT_TYPE_FREEBSD            \
           {0x516e7cb4,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
   #define GPT_ENT_TYPE_FREEBSD_BOOT       \
           {0x83bd6b9d,0x7f41,0x11dc,0xbe,0x0b,{0x00,0x15,0x60,0xb8,0x4f,0x0f}}
   #define GPT_ENT_TYPE_FREEBSD_NANDFS     \
           {0x74ba7dd9,0xa689,0x11e1,0xbd,0x04,{0x00,0xe0,0x81,0x28,0x6a,0xcf}}
   #define GPT_ENT_TYPE_FREEBSD_SWAP       \
           {0x516e7cb5,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
   #define GPT_ENT_TYPE_FREEBSD_UFS        \
           {0x516e7cb6,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
   #define GPT_ENT_TYPE_FREEBSD_VINUM      \
           {0x516e7cb8,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
   #define GPT_ENT_TYPE_FREEBSD_ZFS        \
           {0x516e7cba,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
   #define GPT_ENT_TYPE_PREP_BOOT          \
           {0x9e1a2d38,0xc612,0x4316,0xaa,0x26,{0x8b,0x49,0x52,0x1e,0x5a,0x8b}}
   
   /*
    * The following are unused but documented here to avoid reuse.
    *
    * GPT_ENT_TYPE_FREEBSD_UFS2    \
    *      {0x516e7cb7,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
    */
   
   /*
    * Foreign partition types that we're likely to encounter. Note that Linux
    * apparently choose to share data partitions with MS. I don't what the
    * advantage might be. I can see how sharing swap partitions is advantageous
    * though.
    */
   #define GPT_ENT_TYPE_MS_BASIC_DATA      \
           {0xebd0a0a2,0xb9e5,0x4433,0x87,0xc0,{0x68,0xb6,0xb7,0x26,0x99,0xc7}}
   #define GPT_ENT_TYPE_MS_LDM_DATA        \
           {0xaf9b60a0,0x1431,0x4f62,0xbc,0x68,{0x33,0x11,0x71,0x4a,0x69,0xad}}
   #define GPT_ENT_TYPE_MS_LDM_METADATA    \
           {0x5808c8aa,0x7e8f,0x42e0,0x85,0xd2,{0xe1,0xe9,0x04,0x34,0xcf,0xb3}}
   #define GPT_ENT_TYPE_MS_RECOVERY        \
           {0xde94bba4,0x06d1,0x4d40,0xa1,0x6a,{0xbf,0xd5,0x01,0x79,0xd6,0xac}}
   #define GPT_ENT_TYPE_MS_RESERVED        \
           {0xe3c9e316,0x0b5c,0x4db8,0x81,0x7d,{0xf9,0x2d,0xf0,0x02,0x15,0xae}}
   #define GPT_ENT_TYPE_MS_SPACES  \
           {0xe75caf8f,0xf680,0x4cee,0xaf,0xa3,{0xb0,0x01,0xe5,0x6e,0xfc,0x2d}}
   
   #define GPT_ENT_TYPE_LINUX_DATA         \
           {0x0fc63daf,0x8483,0x4772,0x8e,0x79,{0x3d,0x69,0xd8,0x47,0x7d,0xe4}}
   #define GPT_ENT_TYPE_LINUX_RAID         \
           {0xa19d880f,0x05fc,0x4d3b,0xa0,0x06,{0x74,0x3f,0x0f,0x84,0x91,0x1e}}
   #define GPT_ENT_TYPE_LINUX_SWAP         \
           {0x0657fd6d,0xa4ab,0x43c4,0x84,0xe5,{0x09,0x33,0xc8,0x4b,0x4f,0x4f}}
   #define GPT_ENT_TYPE_LINUX_LVM          \
           {0xe6d6d379,0xf507,0x44c2,0xa2,0x3c,{0x23,0x8f,0x2a,0x3d,0xf9,0x28}}
   
   #define GPT_ENT_TYPE_VMFS               \
           {0xaa31e02a,0x400f,0x11db,0x95,0x90,{0x00,0x0c,0x29,0x11,0xd1,0xb8}}
   #define GPT_ENT_TYPE_VMKDIAG            \
           {0x9d275380,0x40ad,0x11db,0xbf,0x97,{0x00,0x0c,0x29,0x11,0xd1,0xb8}}
   #define GPT_ENT_TYPE_VMRESERVED         \
           {0x9198effc,0x31c0,0x11db,0x8f,0x78,{0x00,0x0c,0x29,0x11,0xd1,0xb8}}
   #define GPT_ENT_TYPE_VMVSANHDR          \
           {0x381cfccc,0x7288,0x11e0,0x92,0xee,{0x00,0x0c,0x29,0x11,0xd0,0xb2}}
   
   #define GPT_ENT_TYPE_APPLE_BOOT         \
           {0x426F6F74,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
   #define GPT_ENT_TYPE_APPLE_HFS          \
           {0x48465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
   #define GPT_ENT_TYPE_APPLE_UFS          \
           {0x55465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
   #define GPT_ENT_TYPE_APPLE_ZFS          \
           {0x6a898cc3,0x1dd2,0x11b2,0x99,0xa6,{0x08,0x00,0x20,0x73,0x66,0x31}}
   #define GPT_ENT_TYPE_APPLE_RAID         \
           {0x52414944,0x0000,0x11aa,0xaa,0x22,{0x00,0x30,0x65,0x43,0xec,0xac}}
   #define GPT_ENT_TYPE_APPLE_RAID_OFFLINE \
           {0x52414944,0x5f4f,0x11aa,0xaa,0x22,{0x00,0x30,0x65,0x43,0xec,0xac}}
   #define GPT_ENT_TYPE_APPLE_LABEL        \
           {0x4C616265,0x6c00,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
   #define GPT_ENT_TYPE_APPLE_TV_RECOVERY  \
           {0x5265636f,0x7665,0x11AA,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
   #define GPT_ENT_TYPE_APPLE_CORE_STORAGE \
           {0x53746f72,0x6167,0x11AA,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
   #define GPT_ENT_TYPE_APPLE_APFS \
           {0x7c3457ef,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
   
   #define GPT_ENT_TYPE_NETBSD_FFS         \
           {0x49f48d5a,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
   #define GPT_ENT_TYPE_NETBSD_LFS         \
           {0x49f48d82,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
   #define GPT_ENT_TYPE_NETBSD_SWAP        \
           {0x49f48d32,0xb10e,0x11dc,0xB9,0x9B,{0x00,0x19,0xd1,0x87,0x96,0x48}}
   #define GPT_ENT_TYPE_NETBSD_RAID        \
           {0x49f48daa,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
   #define GPT_ENT_TYPE_NETBSD_CCD         \
           {0x2db519c4,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
   #define GPT_ENT_TYPE_NETBSD_CGD         \
           {0x2db519ec,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
   
   #define GPT_ENT_TYPE_DRAGONFLY_LABEL32  \
           {0x9d087404,0x1ca5,0x11dc,0x88,0x17,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   #define GPT_ENT_TYPE_DRAGONFLY_SWAP     \
           {0x9d58fdbd,0x1ca5,0x11dc,0x88,0x17,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   #define GPT_ENT_TYPE_DRAGONFLY_UFS1     \
           {0x9d94ce7c,0x1ca5,0x11dc,0x88,0x17,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   #define GPT_ENT_TYPE_DRAGONFLY_VINUM    \
           {0x9dd4478f,0x1ca5,0x11dc,0x88,0x17,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   #define GPT_ENT_TYPE_DRAGONFLY_CCD      \
           {0xdbd5211b,0x1ca5,0x11dc,0x88,0x17,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   #define GPT_ENT_TYPE_DRAGONFLY_LABEL64  \
           {0x3d48ce54,0x1d16,0x11dc,0x86,0x96,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   #define GPT_ENT_TYPE_DRAGONFLY_LEGACY   \
           {0xbd215ab2,0x1d16,0x11dc,0x86,0x96,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   #define GPT_ENT_TYPE_DRAGONFLY_HAMMER   \
           {0x61dc63ac,0x6e38,0x11dc,0x85,0x13,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   #define GPT_ENT_TYPE_DRAGONFLY_HAMMER2  \
           {0x5cbb9ad1,0x862d,0x11dc,0xa9,0x4d,{0x01,0x30,0x1b,0xb8,0xa9,0xf5}}
   
   #define GPT_ENT_TYPE_CHROMEOS_FIRMWARE  \
           {0xcab6e88e,0xabf3,0x4102,0xa0,0x7a,{0xd4,0xbb,0x9b,0xe3,0xc1,0xd3}}
   #define GPT_ENT_TYPE_CHROMEOS_KERNEL    \
           {0xfe3a2a5d,0x4f32,0x41a7,0xb7,0x25,{0xac,0xcc,0x32,0x85,0xa3,0x09}}
   #define GPT_ENT_TYPE_CHROMEOS_RESERVED  \
           {0x2e0a753d,0x9e48,0x43b0,0x83,0x37,{0xb1,0x51,0x92,0xcb,0x1b,0x5e}}
   #define GPT_ENT_TYPE_CHROMEOS_ROOT      \
           {0x3cb8e202,0x3b7e,0x47dd,0x8a,0x3c,{0x7f,0xf2,0xa1,0x3c,0xfc,0xec}}
   
   #define GPT_ENT_TYPE_OPENBSD_DATA       \
           {0x824cc7a0,0x36a8,0x11e3,0x89,0x0a,{0x95,0x25,0x19,0xad,0x3f,0x61}}
   
   /*
    * Boot partition used by GRUB 2.
    */
   #define GPT_ENT_TYPE_BIOS_BOOT          \
           {0x21686148,0x6449,0x6e6f,0x74,0x4e,{0x65,0x65,0x64,0x45,0x46,0x49}}
   
   #endif /* _SYS_DISK_GPT_H_ */

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