| /* |
| * Copyright (C) 2008 RuggedCom, Inc. |
| * Richard Retanubun <RichardRetanubun@RuggedCom.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| /* |
| * See also linux/fs/partitions/efi.h |
| * |
| * EFI GUID Partition Table |
| * Per Intel EFI Specification v1.02 |
| * http://developer.intel.com/technology/efi/efi.htm |
| */ |
| |
| #include <linux/compiler.h> |
| |
| #include <efi.h> |
| |
| #ifndef _DISK_PART_EFI_H |
| #define _DISK_PART_EFI_H |
| |
| #define MSDOS_MBR_SIGNATURE 0xAA55 |
| #define EFI_PMBR_OSTYPE_EFI 0xEF |
| #define EFI_PMBR_OSTYPE_EFI_GPT 0xEE |
| |
| #define GPT_HEADER_SIGNATURE 0x5452415020494645ULL |
| #define GPT_HEADER_REVISION_V1 0x00010000 |
| #define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL |
| #define GPT_ENTRY_NAME "gpt" |
| #define GPT_ENTRY_NUMBERS 128 |
| #define GPT_ENTRY_SIZE 128 |
| |
| #define PARTITION_SYSTEM_GUID \ |
| EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \ |
| 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B) |
| #define LEGACY_MBR_PARTITION_GUID \ |
| EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \ |
| 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F) |
| #define PARTITION_MSFT_RESERVED_GUID \ |
| EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \ |
| 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE) |
| #define PARTITION_BASIC_DATA_GUID \ |
| EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \ |
| 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7) |
| #define PARTITION_LINUX_FILE_SYSTEM_DATA_GUID \ |
| EFI_GUID(0x0FC63DAF, 0x8483, 0x4772, \ |
| 0x8E, 0x79, 0x3D, 0x69, 0xD8, 0x47, 0x7D, 0xE4) |
| #define PARTITION_LINUX_RAID_GUID \ |
| EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \ |
| 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e) |
| #define PARTITION_LINUX_SWAP_GUID \ |
| EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \ |
| 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f) |
| #define PARTITION_LINUX_LVM_GUID \ |
| EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \ |
| 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28) |
| #define PARTITION_LINUX_DEFAULT_GUID \ |
| EFI_GUID(0x0FC63DAF, 0x8483, 0x4772, \ |
| 0x8E, 0x79, 0x3D, 0x69, 0xD8, 0x47, 0x7D, 0xE4) |
| #define PARTITION_ANDROID_BOOTLOADER_GUID \ |
| EFI_GUID(0x2568845D, 0x2332, 0x4675, \ |
| 0xBC, 0x39, 0x8F, 0xA5, 0xA4, 0x74, 0x8D, 0x15) |
| #define PARTITION_ANDROID_BOOTLOADER2_GUID \ |
| EFI_GUID(0x114EAFFE, 0x1552, 0x4022, \ |
| 0xB2, 0x6E, 0x9B, 0x05, 0x36, 0x04, 0xCF, 0x84) |
| #define PARTITION_ANDROID_RECOVERY_GUID \ |
| EFI_GUID(0x4177C722, 0x9E92, 0x4AAB, \ |
| 0x86, 0x44, 0x43, 0x50, 0x2B, 0xFD, 0x55, 0x06) |
| #define PARTITION_ANDROID_MISC_GUID \ |
| EFI_GUID(0xEF32A33B, 0xA409, 0x486C, \ |
| 0x91, 0X41, 0x9F, 0xFB, 0x71, 0x1F, 0x62, 0x66) |
| #define PARTITION_ANDROID_METADATA_GUID\ |
| EFI_GUID(0x20AC26BE, 0x20B7, 0x11E3, \ |
| 0x84, 0xC5, 0x6C, 0xFD, 0xB9, 0x47, 0x11, 0xE9) |
| #define PARTITION_ANDROID_SYSTEM_GUID \ |
| EFI_GUID(0x38F428E6, 0xD326, 0x425D, \ |
| 0x91, 0x40, 0x6E, 0x0E, 0xA1, 0x33, 0x64, 0x7C) |
| #define PARTITION_ANDROID_CACHE_GUID \ |
| EFI_GUID(0xA893EF21, 0xE428, 0x470A, \ |
| 0x9E, 0x55, 0x06, 0x68, 0xFD, 0x91, 0xA2, 0xD9) |
| #define PARTITION_ANDROID_DATA_GUID \ |
| EFI_GUID(0xDC76DDA9, 0x5AC1, 0x491C, \ |
| 0xAF, 0x42, 0xA8, 0x25, 0x91, 0x58, 0x0C, 0x0D) |
| #define PARTITION_ANDROID_PERSISTENT_GUID \ |
| EFI_GUID(0xEBC597D0, 0x2053, 0x4B15, \ |
| 0x8B, 0x64, 0xE0, 0xAA, 0xC7, 0x5F, 0x4D, 0xB1) |
| #define PARTITION_ANDROID_VENDOR_GUID \ |
| EFI_GUID(0xC5A0AEEC, 0x13EA, 0x11E5, \ |
| 0xA1, 0xB1, 0x00, 0x1E, 0x67, 0xCA, 0x0C, 0x3C) |
| #define PARTITION_ANDROID_CONFIG_GUID \ |
| EFI_GUID(0xBD59408B, 0x4514, 0x490D, \ |
| 0xBF, 0x12, 0x98, 0x78, 0xD9, 0x63, 0xF3, 0x78) |
| #define PARTITION_ANDROID_FACTORY_GUID \ |
| EFI_GUID(0x8F68CC74, 0xC5E5, 0x48DA, \ |
| 0xBE, 0x01, 0xA0, 0xC8, 0xC1, 0x5E, 0x9C, 0x80) |
| #define PARTITION_ANDROID_FACTORY_ALT_GUID \ |
| EFI_GUID(0x9FDAA6EF, 0x4B3F, 0x40D2, \ |
| 0xBA, 0x8D, 0xBF, 0xF1, 0x6B, 0xFB, 0x88, 0x78) |
| #define PARTITION_ANDROID_FASTBOOT_GUID \ |
| EFI_GUID(0x767941D0, 0x2085, 0x11E3, \ |
| 0xAD, 0x3B, 0x6C, 0xFD, 0xB9, 0x47, 0x11, 0xE9) |
| #define PARTITION_ANDROID_TERTIARY_GUID \ |
| EFI_GUID(0x767941D0, 0x2085, 0x11E3, \ |
| 0xAD, 0x3B, 0x6C, 0xFD, 0xB9, 0x47, 0x11, 0xE9) |
| #define PARTITION_ANDROID_OEM_GUID \ |
| EFI_GUID(0xAC6D7924, 0xEB71, 0x4DF8, \ |
| 0xB4, 0x8D, 0xE2, 0x67, 0xB2, 0x71, 0x48, 0xFF) |
| |
| /* linux/include/efi.h */ |
| typedef u16 efi_char16_t; |
| |
| /* based on linux/include/genhd.h */ |
| struct partition { |
| u8 boot_ind; /* 0x80 - active */ |
| u8 head; /* starting head */ |
| u8 sector; /* starting sector */ |
| u8 cyl; /* starting cylinder */ |
| u8 sys_ind; /* What partition type */ |
| u8 end_head; /* end head */ |
| u8 end_sector; /* end sector */ |
| u8 end_cyl; /* end cylinder */ |
| __le32 start_sect; /* starting sector counting from 0 */ |
| __le32 nr_sects; /* nr of sectors in partition */ |
| } __packed; |
| |
| /* based on linux/fs/partitions/efi.h */ |
| typedef struct _gpt_header { |
| __le64 signature; |
| __le32 revision; |
| __le32 header_size; |
| __le32 header_crc32; |
| __le32 reserved1; |
| __le64 my_lba; |
| __le64 alternate_lba; |
| __le64 first_usable_lba; |
| __le64 last_usable_lba; |
| efi_guid_t disk_guid; |
| __le64 partition_entry_lba; |
| __le32 num_partition_entries; |
| __le32 sizeof_partition_entry; |
| __le32 partition_entry_array_crc32; |
| } __packed gpt_header; |
| int gpt_restore(block_dev_desc_t *dev_desc, char *str_disk_guid, |
| disk_partition_t *partitions, const int parts_count); |
| |
| |
| typedef union _gpt_entry_attributes { |
| struct { |
| u64 required_to_function:1; |
| u64 no_block_io_protocol:1; |
| u64 legacy_bios_bootable:1; |
| u64 reserved:45; |
| u64 type_guid_specific:16; |
| } fields; |
| unsigned long long raw; |
| } __packed gpt_entry_attributes; |
| |
| #define PARTNAME_SZ (72 / sizeof(efi_char16_t)) |
| typedef struct _gpt_entry { |
| efi_guid_t partition_type_guid; |
| efi_guid_t unique_partition_guid; |
| __le64 starting_lba; |
| __le64 ending_lba; |
| gpt_entry_attributes attributes; |
| efi_char16_t partition_name[PARTNAME_SZ]; |
| } __packed gpt_entry; |
| |
| typedef struct _legacy_mbr { |
| u8 boot_code[440]; |
| __le32 unique_mbr_signature; |
| __le16 unknown; |
| struct partition partition_record[4]; |
| __le16 signature; |
| } __packed legacy_mbr; |
| |
| #endif /* _DISK_PART_EFI_H */ |
| |
| int pmbr_part_valid(struct partition *part); |
| int is_pmbr_valid(legacy_mbr * mbr); |
| int is_gpt_valid(block_dev_desc_t *dev_desc, u64 lba, |
| gpt_header *pgpt_head, gpt_entry **pgpt_pte); |
| gpt_entry *alloc_read_gpt_entries(block_dev_desc_t * dev_desc, |
| gpt_header * pgpt_head); |
| int is_pte_valid(gpt_entry * pte); |
| |
| /* GPT partition type GUIDs in string format. |
| * |
| * The Firmware SDK provides these in binary format but this codebase expects |
| * them as strings. This creates a bit of duplication, we may want to move code |
| * over to the Firmware SDK format at some point, but is fine for now. |
| */ |
| #define GPT_DURABLE_NAME "durable" |
| #define GPT_DURABLE_TYPE_GUID_STR "d9fd4535-106c-4cec-8d37-dfc020ca87cb" |
| #define GPT_DURABLE_BOOT_TYPE_GUID_STR "a409e16b-78aa-4acc-995c-302352621a41" |
| #define GPT_FACTORY_TYPE_GUID_STR "f95d940e-caba-4578-9b93-bb6c90f29d3e" |
| #define GPT_FACTORY_BOOT_TYPE_GUID_STR "10b8dbaa-d2bf-42a9-98c6-a7c5db3701e7" |
| #define GPT_VBMETA_ABR_TYPE_GUID_STR "421a8bfc-85d9-4d85-acda-b64eec0133e9" |