/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2012 Nexenta Systems, Inc. All rights reserved. * Copyright 2014 Toomas Soome * Copyright (c) 2019, Joyent, Inc. */ #ifndef _SYS_EFI_PARTITION_H #define _SYS_EFI_PARTITION_H #include #include #ifdef __cplusplus extern "C" { #endif /* * GUID Partition Table Header */ #define EFI_LABEL_SIZE 512 #define LEN_EFI_PAD (EFI_LABEL_SIZE - \ ((5 * sizeof (diskaddr_t)) + \ (7 * sizeof (uint_t)) + \ (8 * sizeof (char)) + \ (1 * (sizeof (struct uuid))))) #define EFI_SIGNATURE 0x5452415020494645ULL /* * Although the EFI spec is clear that sizeof (efi_gpt_t) is a valid value * (512), at least one EFI system (AMI v4.6.4.1) incorrectly expects this to be * exactly the size of the structure defined in the spec, that is, 92. * * As the reserved section is never used, the modified value works fine * everywhere else. */ #define EFI_HEADER_SIZE (offsetof(efi_gpt_t, efi_gpt_Reserved2)) /* EFI Guid Partition Table Header -- little endian on-disk format */ typedef struct efi_gpt { uint64_t efi_gpt_Signature; uint_t efi_gpt_Revision; uint_t efi_gpt_HeaderSize; uint_t efi_gpt_HeaderCRC32; uint_t efi_gpt_Reserved1; diskaddr_t efi_gpt_MyLBA; diskaddr_t efi_gpt_AlternateLBA; diskaddr_t efi_gpt_FirstUsableLBA; diskaddr_t efi_gpt_LastUsableLBA; struct uuid efi_gpt_DiskGUID; diskaddr_t efi_gpt_PartitionEntryLBA; uint_t efi_gpt_NumberOfPartitionEntries; uint_t efi_gpt_SizeOfPartitionEntry; uint_t efi_gpt_PartitionEntryArrayCRC32; char efi_gpt_Reserved2[LEN_EFI_PAD]; } efi_gpt_t; /* EFI Guid Partition Entry Attributes -- little endian format */ typedef struct efi_gpe_Attrs { uint32_t PartitionAttrs :16, Reserved2 :16; uint32_t Reserved1 :31, RequiredPartition :1; } efi_gpe_Attrs_t; /* * 6a96237f-1dd2-11b2-99a6-080020736631 V_UNASSIGNED (not used as such) * 6a82cb45-1dd2-11b2-99a6-080020736631 V_BOOT * 6a85cf4d-1dd2-11b2-99a6-080020736631 V_ROOT * 6a87c46f-1dd2-11b2-99a6-080020736631 V_SWAP * 6a898cc3-1dd2-11b2-99a6-080020736631 V_USR * 6a8b642b-1dd2-11b2-99a6-080020736631 V_BACKUP * 6a8d2ac7-1dd2-11b2-99a6-080020736631 V_STAND (not used) * 6a8ef2e9-1dd2-11b2-99a6-080020736631 V_VAR * 6a90ba39-1dd2-11b2-99a6-080020736631 V_HOME * 6a9283a5-1dd2-11b2-99a6-080020736631 V_ALTSCTR * 6a945a3b-1dd2-11b2-99a6-080020736631 V_CACHE */ #define EFI_UNUSED { 0x00000000, 0x0000, 0x0000, 0x00, 0x00, \ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } #define EFI_RESV1 { 0x6a96237f, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_BOOT { 0x6a82cb45, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_ROOT { 0x6a85cf4d, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_SWAP { 0x6a87c46f, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_USR { 0x6a898cc3, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_BACKUP { 0x6a8b642b, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_RESV2 { 0x6a8d2ac7, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_VAR { 0x6a8ef2e9, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_HOME { 0x6a90ba39, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_ALTSCTR { 0x6a9283a5, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_RESERVED { 0x6a945a3b, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_SYSTEM { 0xC12A7328, 0xF81F, 0x11d2, 0xBA, 0x4B, \ { 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } } #define EFI_LEGACY_MBR { 0x024DEE41, 0x33E7, 0x11d3, 0x9D, 0x69, \ { 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F } } #define EFI_SYMC_PUB { 0x6a9630d1, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_SYMC_CDS { 0x6a980767, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_MSFT_RESV { 0xE3C9E316, 0x0B5C, 0x4DB8, 0x81, 0x7D, \ { 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } } #define EFI_DELL_BASIC { 0xebd0a0a2, 0xb9e5, 0x4433, 0x87, 0xc0, \ { 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7 } } #define EFI_DELL_RAID { 0xa19d880f, 0x05fc, 0x4d3b, 0xa0, 0x06, \ { 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e } } #define EFI_DELL_SWAP { 0x0657fd6d, 0xa4ab, 0x43c4, 0x84, 0xe5, \ { 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f } } #define EFI_DELL_LVM { 0xe6d6d379, 0xf507, 0x44c2, 0xa2, 0x3c, \ { 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28 } } #define EFI_DELL_RESV { 0x8da63339, 0x0007, 0x60c0, 0xc4, 0x36, \ { 0x08, 0x3a, 0xc8, 0x23, 0x09, 0x08 } } #define EFI_AAPL_BOOT { 0x426F6F74, 0x0000, 0x11aa, 0xaa, 0x11, \ { 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } } #define EFI_AAPL_HFS { 0x48465300, 0x0000, 0x11aa, 0xaa, 0x11, \ { 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } } #define EFI_AAPL_UFS { 0x55465300, 0x0000, 0x11aa, 0xaa, 0x11, \ { 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } } #define EFI_AAPL_ZFS { 0x6a898cc3, 0x1dd2, 0x11b2, 0x99, 0xa6, \ { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } #define EFI_AAPL_APFS { 0x7c3457ef, 0x0000, 0x11aa, 0xaa, 0x11, \ { 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } } #define EFI_FREEBSD_BOOT { 0x83bd6b9d, 0x7f41, 0x11dc, 0xbe, 0x0b, \ { 0x00, 0x15, 0x60, 0xb8, 0x4f, 0x0f } } #define EFI_FREEBSD_NANDFS { 0x74ba7dd9, 0xa689, 0x11e1, 0xbd, 0x04, \ { 0x00, 0xe0, 0x81, 0x28, 0x6a, 0xcf } } #define EFI_FREEBSD_SWAP { 0x516e7cb5, 0x6ecf, 0x11d6, 0x8f, 0xf8, \ { 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } } #define EFI_FREEBSD_UFS { 0x516e7cb6, 0x6ecf, 0x11d6, 0x8f, 0xf8, \ { 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } } #define EFI_FREEBSD_VINUM { 0x516e7cb8, 0x6ecf, 0x11d6, 0x8f, 0xf8, \ { 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } } #define EFI_FREEBSD_ZFS { 0x516e7cba, 0x6ecf, 0x11d6, 0x8f, 0xf8, \ { 0x00, 0x02, 0x2d, 0x09, 0x71, 0x2b } } #define EFI_BIOS_BOOT { 0x21686148, 0x6449, 0x6e6f, 0x74, 0x4e, \ { 0x65, 0x65, 0x64, 0x45, 0x46, 0x49 } } /* minimum # of bytes for partition table entires, per EFI spec */ #define EFI_MIN_ARRAY_SIZE (16 * 1024) #define EFI_PART_NAME_LEN 36 /* size of the "reserved" partition, in blocks */ #define EFI_MIN_RESV_SIZE (16 * 1024) /* EFI Guid Partition Entry */ typedef struct efi_gpe { struct uuid efi_gpe_PartitionTypeGUID; struct uuid efi_gpe_UniquePartitionGUID; diskaddr_t efi_gpe_StartingLBA; diskaddr_t efi_gpe_EndingLBA; efi_gpe_Attrs_t efi_gpe_Attributes; ushort_t efi_gpe_PartitionName[EFI_PART_NAME_LEN]; } efi_gpe_t; /* * passed to the useful (we hope) routines (efi_alloc_and_read and * efi_write) that take this VTOC-like struct. These routines handle * converting this struct into the EFI struct, generate UUIDs and * checksums, and perform any necessary byte-swapping to the on-disk * format. */ /* Solaris library abstraction for EFI partitons */ typedef struct dk_part { diskaddr_t p_start; /* starting LBA */ diskaddr_t p_size; /* size in blocks */ struct uuid p_guid; /* partion type GUID */ ushort_t p_tag; /* converted to part'n type GUID */ ushort_t p_flag; /* attributes */ char p_name[EFI_PART_NAME_LEN]; /* partition name */ struct uuid p_uguid; /* unique partition GUID */ uint_t p_resv[8]; /* future use - set to zero */ } dk_part_t; /* Solaris library abstraction for an EFI GPT */ #define EFI_VERSION102 0x00010002 #define EFI_VERSION100 0x00010000 #define EFI_VERSION_CURRENT EFI_VERSION100 typedef struct dk_gpt { uint_t efi_version; /* set to EFI_VERSION_CURRENT */ uint_t efi_nparts; /* number of partitions below */ uint_t efi_part_size; /* size of each partition entry */ /* efi_part_size is unused */ uint_t efi_lbasize; /* size of block in bytes */ diskaddr_t efi_last_lba; /* last block on the disk */ diskaddr_t efi_first_u_lba; /* first block after labels */ diskaddr_t efi_last_u_lba; /* last block before backup labels */ struct uuid efi_disk_uguid; /* unique disk GUID */ uint_t efi_flags; uint_t efi_reserved1; /* future use - set to zero */ diskaddr_t efi_altern_lba; /* lba of alternate GPT header */ uint_t efi_reserved[12]; /* future use - set to zero */ struct dk_part efi_parts[1]; /* array of partitions */ } dk_gpt_t; /* possible values for "efi_flags" */ #define EFI_GPT_PRIMARY_CORRUPT 0x1 /* primary label corrupt */ /* the private ioctl between libefi and the driver */ typedef struct dk_efi { diskaddr_t dki_lba; /* starting block */ len_t dki_length; /* length in bytes */ union { efi_gpt_t *_dki_data; uint64_t _dki_data_64; } dki_un; #define dki_data dki_un._dki_data #define dki_data_64 dki_un._dki_data_64 } dk_efi_t; struct partition64 { struct uuid p_type; uint_t p_partno; uint_t p_resv1; diskaddr_t p_start; diskaddr_t p_size; }; /* * Number of EFI partitions */ #define EFI_NUMPAR 9 #ifndef _KERNEL extern int efi_alloc_and_init(int, uint32_t, struct dk_gpt **); extern int efi_alloc_and_read(int, struct dk_gpt **); extern int efi_write(int, struct dk_gpt *); extern void efi_free(struct dk_gpt *); extern int efi_type(int); extern void efi_err_check(struct dk_gpt *); extern int efi_auto_sense(int fd, struct dk_gpt **); extern int efi_use_whole_disk(int fd); #endif #ifdef __cplusplus } #endif #endif /* _SYS_EFI_PARTITION_H */