220 lines
8.0 KiB
C
220 lines
8.0 KiB
C
/** @file
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Copyright (C) 2017, CupertinoNet. All rights reserved.<BR>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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**/
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#ifndef APPLE_APFS_INFO_H_
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#define APPLE_APFS_INFO_H_
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#define APFS_GPT_PARTITION_UUID \
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{ 0x7C3457EF, 0x0000, 0x11AA, \
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{ 0xAA, 0x11, 0x00, 0x30, 0x65, 0x43, 0xEC, 0xAC } }
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#define APFS_PARTITION_TYPE_GUID \
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{ 0x41504653, 0x0000, 0x11AA, \
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{ 0xAA, 0x11, 0x00, 0x30, 0x65, 0x43, 0xEC, 0xAC } }
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extern EFI_GUID gAppleApfsPartitionTypeGuid;
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#define APPLE_APFS_CONTAINER_INFO_GUID \
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{ 0x3533CF0D, 0x685F, 0x5EBF, \
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{ 0x8D, 0xC6, 0x73, 0x93, 0x48, 0x5B, 0xAF, 0xA2 } }
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typedef struct {
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UINT32 Always1;
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GUID Uuid;
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} APPLE_APFS_CONTAINER_INFO;
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extern EFI_GUID gAppleApfsContainerInfoGuid;
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#define APPLE_APFS_VOLUME_INFO_GUID \
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{ 0x900C7693, 0x8C14, 0x58BA, \
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{ 0xB4, 0x4E, 0x97, 0x45, 0x15, 0xD2, 0x7C, 0x78 } }
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#define APFS_VOLUME_ENUM_SHIFT 6
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#define OID_NX_SUPERBLOCK 1
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#define OID_INVALID 0ULL
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#define OID_RESERVED_COUNT 1024
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#define MAX_CKSUM_SIZE 8
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#define APFS_MAX_HIST 8
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#define APFS_VOLNAME_LEN 256
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#define OBJECT_TYPE_MASK 0x0000ffff
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#define OBJECT_TYPE_FLAGS_MASK 0xffff0000
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#define OBJ_STORAGETYPE_MASK 0xc0000000
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#define OBJECT_TYPE_FLAGS_DEFINED_MASK 0xf8000000
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#define APFS_VOL_ROLE_NONE 0x0000
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#define APPLE_APFS_VOLUME_ROLE_SYSTEM BIT0 // 0x01 Main partition. Joint with DATA.
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#define APPLE_APFS_VOLUME_ROLE_USER BIT1 // 0x02 The volume contains usersʼ home directories.
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#define APPLE_APFS_VOLUME_ROLE_RECOVERY BIT2 // 0x04
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#define APPLE_APFS_VOLUME_ROLE_VM BIT3 // 0x08
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#define APPLE_APFS_VOLUME_ROLE_PREBOOT BIT4 // 0x10
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#define APPLE_APFS_VOLUME_ROLE_INSTALLER BIT5 // 0x20
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#define APPLE_APFS_VOLUME_ROLE_DATA BIT6 // 0x40 The volume contains mutable data.
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#define APFS_VOL_ROLE_DATA (1 << APFS_VOLUME_ENUM_SHIFT) //0x40
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#define APFS_VOL_ROLE_BASEBAND (2 << APFS_VOLUME_ENUM_SHIFT) // The volume is used by the radio firmware.
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#define APFS_VOL_ROLE_UPDATE (3 << APFS_VOLUME_ENUM_SHIFT) //0xC0 This role is used only on devices running iOS.???
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#define APFS_VOL_ROLE_XART (4 << APFS_VOLUME_ENUM_SHIFT) //The volume is used to manage OS access to secure user data.
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#define APFS_VOL_ROLE_HARDWARE (5 << APFS_VOLUME_ENUM_SHIFT) //The volume is used for firmware data. iOS
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#define APFS_VOL_ROLE_BACKUP (6 << APFS_VOLUME_ENUM_SHIFT) //The volume is used by Time Machine to store backups.
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#define APFS_VOL_ROLE_RESERVED_7 (7 << APFS_VOLUME_ENUM_SHIFT)
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#define APFS_VOL_ROLE_RESERVED_8 (8 << APFS_VOLUME_ENUM_SHIFT)
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#define APFS_VOL_ROLE_ENTERPRISE (9 << APFS_VOLUME_ENUM_SHIFT)
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#define APFS_VOL_ROLE_RESERVED_10 (10 << APFS_VOLUME_ENUM_SHIFT)
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#define APFS_VOL_ROLE_PRELOGIN (11 << APFS_VOLUME_ENUM_SHIFT) //This volume is used to store system data used before login.
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#define APFS_FEATURE_DEFRAG_PRERELEASE 0x00000001LL
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#define APFS_FEATURE_HARDLINK_MAP_RECORDS 0x00000002LL
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#define APFS_FEATURE_DEFRAG 0x00000004LL
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#define APFS_FEATURE_STRICTATIME 0x00000008LL
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#define APFS_FEATURE_VOLGRP_SYSTEM_INO_SPACE 0x00000010LL
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#define APFS_SUPPORTED_FEATURES_MASK (APFS_FEATURE_DEFRAG \
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| APFS_FEATURE_DEFRAG_PRERELEASE \
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| APFS_FEATURE_HARDLINK_MAP_RECORDS \
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| APFS_FEATURE_STRICTATIME \
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| APFS_FEATURE_VOLGRP_SYSTEM_INO_SPACE)
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typedef UINT64 uint64_t;
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typedef INT64 int64_t;
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typedef UINT32 uint32_t;
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typedef UINT16 uint16_t;
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typedef UINT8 uint8_t;
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typedef uint64_t oid_t;
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typedef uint64_t xid_t;
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typedef int64_t paddr_t;
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typedef unsigned char uuid_t[16];
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struct obj_phys {
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uint8_t o_cksum[MAX_CKSUM_SIZE];
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oid_t o_oid;
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xid_t o_xid;
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uint32_t o_type;
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uint32_t o_subtype;
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};
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typedef struct obj_phys obj_phys_t;
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struct prange {
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paddr_t pr_start_paddr;
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uint64_t pr_block_count;
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};
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typedef struct prange prange_t;
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typedef uint32_t cp_key_class_t;
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typedef uint32_t cp_key_os_version_t;
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/*
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* This type stores an OS version and build number as follows:
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• Two bytes for the major version number as an unsigned integer
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• Two bytes for the minor version letter as an ASCII character
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• Four bytes for the build number as an unsigned integer
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For example, to store the build number 18A391:
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1. Store the number 18(0x12) in the highest two bytes, yielding 0x12000000.
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2. Store the character A(0x41) in the next two bytes, yielding 0x12410000.
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3. Store the number 391(0x0187) in the lowest four bytes, yielding 0x12410187.
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*/
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typedef uint16_t cp_key_revision_t;
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typedef uint32_t crypto_flags_t;
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struct wrapped_meta_crypto_state {
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uint16_t major_version;
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uint16_t minor_version;
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crypto_flags_t cpflags;
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cp_key_class_t persistent_class;
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cp_key_os_version_t key_os_version;
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cp_key_revision_t key_revision;
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uint16_t unused;
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} __attribute__((aligned(2), packed));
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typedef struct wrapped_meta_crypto_state wrapped_meta_crypto_state_t;
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#define APFS_MODIFIED_NAMELEN 32
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struct apfs_modified_by {
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uint8_t id[APFS_MODIFIED_NAMELEN];
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uint64_t timestamp;
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xid_t last_xid;
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};
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typedef struct apfs_modified_by apfs_modified_by_t;
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struct apfs_superblock {
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obj_phys_t apfs_o;
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uint32_t apfs_magic;
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uint32_t apfs_fs_index;
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uint64_t apfs_features;
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uint64_t apfs_readonly_compatible_features;
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uint64_t apfs_incompatible_features;
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uint64_t apfs_unmount_time;
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uint64_t apfs_fs_reserve_block_count;
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uint64_t apfs_fs_quota_block_count;
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uint64_t apfs_fs_alloc_count;
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wrapped_meta_crypto_state_t apfs_meta_crypto;
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uint32_t apfs_root_tree_type;
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uint32_t apfs_extentref_tree_type;
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uint32_t apfs_snap_meta_tree_type;
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oid_t apfs_omap_oid;
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oid_t apfs_root_tree_oid;
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oid_t apfs_extentref_tree_oid;
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oid_t apfs_snap_meta_tree_oid;
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xid_t apfs_revert_to_xid;
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oid_t apfs_revert_to_sblock_oid;
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uint64_t apfs_next_obj_id;
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uint64_t apfs_num_files;
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uint64_t apfs_num_directories;
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uint64_t apfs_num_symlinks;
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uint64_t apfs_num_other_fsobjects;
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uint64_t apfs_num_snapshots;
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uint64_t apfs_total_blocks_alloced;
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uint64_t apfs_total_blocks_freed;
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uuid_t apfs_vol_uuid;
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uint64_t apfs_last_mod_time;
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uint64_t apfs_fs_flags;
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apfs_modified_by_t apfs_formatted_by;
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apfs_modified_by_t apfs_modified_by[APFS_MAX_HIST];
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uint8_t apfs_volname[APFS_VOLNAME_LEN];
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uint32_t apfs_next_doc_id;
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uint16_t apfs_role;
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uint16_t reserved;
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xid_t apfs_root_to_xid;
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oid_t apfs_er_state_oid;
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uint64_t apfs_cloneinfo_id_epoch;
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uint64_t apfs_cloneinfo_xid;
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oid_t apfs_snap_meta_ext_oid;
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uuid_t apfs_volume_group_id;
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oid_t apfs_integrity_meta_oid;
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oid_t apfs_fext_tree_oid;
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uint32_t apfs_fext_tree_type;
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uint32_t reserved_type;
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oid_t reserved_oid;
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};
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#define APFS_MAGIC 'BSPA'
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#define APFS_MAX_HIST 8
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#define APFS_VOLNAME_LEN 256
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typedef UINT32 APPLE_APFS_VOLUME_ROLE;
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typedef struct {
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UINT32 Always1;
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GUID Uuid;
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APPLE_APFS_VOLUME_ROLE Role;
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} APPLE_APFS_VOLUME_INFO;
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extern EFI_GUID gAppleApfsVolumeInfoGuid;
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#endif // APPLE_APFS_H_
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