243 lines
8.6 KiB
C
243 lines
8.6 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
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*/
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#ifndef _SYS_EFI_PARTITION_H
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#define _SYS_EFI_PARTITION_H
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#include <sys/uuid.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* GUID Partition Table Header
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*/
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#define EFI_LABEL_SIZE 512
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#define LEN_EFI_PAD (EFI_LABEL_SIZE - \
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((5 * sizeof (diskaddr_t)) + \
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(7 * sizeof (uint_t)) + \
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(8 * sizeof (char)) + \
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(1 * (sizeof (struct uuid)))))
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#define EFI_SIGNATURE 0x5452415020494645ULL
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/* EFI Guid Partition Table Header -- little endian on-disk format */
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typedef struct efi_gpt {
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uint64_t efi_gpt_Signature;
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uint_t efi_gpt_Revision;
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uint_t efi_gpt_HeaderSize;
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uint_t efi_gpt_HeaderCRC32;
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uint_t efi_gpt_Reserved1;
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diskaddr_t efi_gpt_MyLBA;
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diskaddr_t efi_gpt_AlternateLBA;
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diskaddr_t efi_gpt_FirstUsableLBA;
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diskaddr_t efi_gpt_LastUsableLBA;
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struct uuid efi_gpt_DiskGUID;
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diskaddr_t efi_gpt_PartitionEntryLBA;
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uint_t efi_gpt_NumberOfPartitionEntries;
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uint_t efi_gpt_SizeOfPartitionEntry;
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uint_t efi_gpt_PartitionEntryArrayCRC32;
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char efi_gpt_Reserved2[LEN_EFI_PAD];
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} efi_gpt_t;
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/* EFI Guid Partition Entry Attributes -- little endian format */
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typedef struct efi_gpe_Attrs {
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uint32_t PartitionAttrs :16,
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Reserved2 :16;
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uint32_t Reserved1 :31,
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RequiredPartition :1;
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} efi_gpe_Attrs_t;
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/*
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* 6a96237f-1dd2-11b2-99a6-080020736631 V_UNASSIGNED (not used as such)
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* 6a82cb45-1dd2-11b2-99a6-080020736631 V_BOOT
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* 6a85cf4d-1dd2-11b2-99a6-080020736631 V_ROOT
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* 6a87c46f-1dd2-11b2-99a6-080020736631 V_SWAP
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* 6a898cc3-1dd2-11b2-99a6-080020736631 V_USR
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* 6a8b642b-1dd2-11b2-99a6-080020736631 V_BACKUP
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* 6a8d2ac7-1dd2-11b2-99a6-080020736631 V_STAND (not used)
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* 6a8ef2e9-1dd2-11b2-99a6-080020736631 V_VAR
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* 6a90ba39-1dd2-11b2-99a6-080020736631 V_HOME
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* 6a9283a5-1dd2-11b2-99a6-080020736631 V_ALTSCTR
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* 6a945a3b-1dd2-11b2-99a6-080020736631 V_CACHE
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*/
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#define EFI_UNUSED { 0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } }
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#define EFI_RESV1 { 0x6a96237f, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_BOOT { 0x6a82cb45, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_ROOT { 0x6a85cf4d, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_SWAP { 0x6a87c46f, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_USR { 0x6a898cc3, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_BACKUP { 0x6a8b642b, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_RESV2 { 0x6a8d2ac7, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_VAR { 0x6a8ef2e9, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_HOME { 0x6a90ba39, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_ALTSCTR { 0x6a9283a5, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_RESERVED { 0x6a945a3b, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_SYSTEM { 0xC12A7328, 0xF81F, 0x11d2, 0xBA, 0x4B, \
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{ 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } }
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#define EFI_LEGACY_MBR { 0x024DEE41, 0x33E7, 0x11d3, 0x9D, 0x69, \
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{ 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F } }
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#define EFI_SYMC_PUB { 0x6a9630d1, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_SYMC_CDS { 0x6a980767, 0x1dd2, 0x11b2, 0x99, 0xa6, \
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{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
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#define EFI_MSFT_RESV { 0xE3C9E316, 0x0B5C, 0x4DB8, 0x81, 0x7D, \
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{ 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } }
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#define EFI_DELL_BASIC { 0xebd0a0a2, 0xb9e5, 0x4433, 0x87, 0xc0, \
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{ 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7 } }
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#define EFI_DELL_RAID { 0xa19d880f, 0x05fc, 0x4d3b, 0xa0, 0x06, \
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{ 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e } }
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#define EFI_DELL_SWAP { 0x0657fd6d, 0xa4ab, 0x43c4, 0x84, 0xe5, \
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{ 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f } }
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#define EFI_DELL_LVM { 0xe6d6d379, 0xf507, 0x44c2, 0xa2, 0x3c, \
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{ 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28 } }
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#define EFI_DELL_RESV { 0x8da63339, 0x0007, 0x60c0, 0xc4, 0x36, \
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{ 0x08, 0x3a, 0xc8, 0x23, 0x09, 0x08 } }
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#define EFI_AAPL_HFS { 0x48465300, 0x0000, 0x11aa, 0xaa, 0x11, \
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{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
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#define EFI_AAPL_UFS { 0x55465300, 0x0000, 0x11aa, 0xaa, 0x11, \
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{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
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/* minimum # of bytes for partition table entires, per EFI spec */
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#define EFI_MIN_ARRAY_SIZE (16 * 1024)
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#define EFI_PART_NAME_LEN 36
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/* size of the "reserved" partition, in blocks */
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#define EFI_MIN_RESV_SIZE (16 * 1024)
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/* EFI Guid Partition Entry */
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typedef struct efi_gpe {
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struct uuid efi_gpe_PartitionTypeGUID;
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struct uuid efi_gpe_UniquePartitionGUID;
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diskaddr_t efi_gpe_StartingLBA;
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diskaddr_t efi_gpe_EndingLBA;
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efi_gpe_Attrs_t efi_gpe_Attributes;
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ushort_t efi_gpe_PartitionName[EFI_PART_NAME_LEN];
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} efi_gpe_t;
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/*
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* passed to the useful (we hope) routines (efi_alloc_and_read and
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* efi_write) that take this VTOC-like struct. These routines handle
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* converting this struct into the EFI struct, generate UUIDs and
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* checksums, and perform any necessary byte-swapping to the on-disk
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* format.
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*/
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/* Solaris library abstraction for EFI partitons */
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typedef struct dk_part {
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diskaddr_t p_start; /* starting LBA */
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diskaddr_t p_size; /* size in blocks */
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struct uuid p_guid; /* partion type GUID */
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ushort_t p_tag; /* converted to part'n type GUID */
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ushort_t p_flag; /* attributes */
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char p_name[EFI_PART_NAME_LEN]; /* partition name */
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struct uuid p_uguid; /* unique partition GUID */
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uint_t p_resv[8]; /* future use - set to zero */
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} dk_part_t;
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/* Solaris library abstraction for an EFI GPT */
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#define EFI_VERSION102 0x00010002
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#define EFI_VERSION100 0x00010000
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#define EFI_VERSION_CURRENT EFI_VERSION100
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typedef struct dk_gpt {
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uint_t efi_version; /* set to EFI_VERSION_CURRENT */
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uint_t efi_nparts; /* number of partitions below */
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uint_t efi_part_size; /* size of each partition entry */
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/* efi_part_size is unused */
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uint_t efi_lbasize; /* size of block in bytes */
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diskaddr_t efi_last_lba; /* last block on the disk */
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diskaddr_t efi_first_u_lba; /* first block after labels */
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diskaddr_t efi_last_u_lba; /* last block before backup labels */
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struct uuid efi_disk_uguid; /* unique disk GUID */
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uint_t efi_flags;
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uint_t efi_reserved1; /* future use - set to zero */
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diskaddr_t efi_altern_lba; /* lba of alternate GPT header */
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uint_t efi_reserved[12]; /* future use - set to zero */
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struct dk_part efi_parts[1]; /* array of partitions */
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} dk_gpt_t;
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/* possible values for "efi_flags" */
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#define EFI_GPT_PRIMARY_CORRUPT 0x1 /* primary label corrupt */
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/* the private ioctl between libefi and the driver */
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typedef struct dk_efi {
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diskaddr_t dki_lba; /* starting block */
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len_t dki_length; /* length in bytes */
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union {
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efi_gpt_t *_dki_data;
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uint64_t _dki_data_64;
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} dki_un;
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#define dki_data dki_un._dki_data
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#define dki_data_64 dki_un._dki_data_64
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} dk_efi_t;
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struct partition64 {
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struct uuid p_type;
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uint_t p_partno;
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uint_t p_resv1;
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diskaddr_t p_start;
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diskaddr_t p_size;
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};
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/*
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* Number of EFI partitions
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*/
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#if defined(__linux__)
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#define EFI_NUMPAR 128 /* Expected by parted-1.8.1 */
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#else
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#define EFI_NUMPAR 9
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#endif
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#ifndef _KERNEL
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extern int efi_alloc_and_init(int, uint32_t, struct dk_gpt **);
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extern int efi_alloc_and_read(int, struct dk_gpt **);
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extern int efi_write(int, struct dk_gpt *);
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extern void efi_free(struct dk_gpt *);
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extern int efi_type(int);
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extern void efi_err_check(struct dk_gpt *);
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extern int efi_auto_sense(int fd, struct dk_gpt **);
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extern int efi_use_whole_disk(int fd);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_EFI_PARTITION_H */
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