The metadata stored by Android at the beginning of a "super" partition, which is what it calls a disk partition that holds one or more Dynamic Partitions. Dynamic Partitions do more or less the same thing that LVM does on Linux, allowing Android to map ranges of non-contiguous extents to a single logical device. This metadata holds that mapping.
This page hosts a formal specification of Android Dynamic Partitions metadata using Kaitai Struct. This specification can be automatically translated into a variety of programming languages to get a parsing library.
All parsing code for C++98/STL generated by Kaitai Struct depends on the C++/STL runtime library. You have to install it before you can parse data.
For C++, the easiest way is to clone the runtime library sources and build them along with your project.
Using Kaitai Struct in C++/STL usually consists of 3 steps.
std::istream). One can open local file for that, or use existing std::string or char* buffer.
#include <fstream>
std::ifstream is("path/to/local/file.img", std::ifstream::binary);
#include <sstream>
std::istringstream is(str);
#include <sstream>
const char buf[] = { ... };
std::string str(buf, sizeof buf);
std::istringstream is(str);
#include "kaitai/kaitaistream.h"
kaitai::kstream ks(&is);
android_super_t data(&ks);
After that, one can get various attributes from the structure by invoking getter methods like:
data.root() // => get root
#ifndef ANDROID_SUPER_H_
#define ANDROID_SUPER_H_
// This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
#include "kaitai/kaitaistruct.h"
#include <stdint.h>
#include <vector>
#if KAITAI_STRUCT_VERSION < 9000L
#error "Incompatible Kaitai Struct C++/STL API: version 0.9 or later is required"
#endif
/**
* The metadata stored by Android at the beginning of a "super" partition, which
* is what it calls a disk partition that holds one or more Dynamic Partitions.
* Dynamic Partitions do more or less the same thing that LVM does on Linux,
* allowing Android to map ranges of non-contiguous extents to a single logical
* device. This metadata holds that mapping.
* \sa https://source.android.com/docs/core/ota/dynamic_partitions Source
* \sa https://android.googlesource.com/platform/system/core/+/refs/tags/android-11.0.0_r8/fs_mgr/liblp/include/liblp/metadata_format.h Source
*/
class android_super_t : public kaitai::kstruct {
public:
class root_t;
class geometry_t;
class metadata_t;
android_super_t(kaitai::kstream* p__io, kaitai::kstruct* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~android_super_t();
class root_t : public kaitai::kstruct {
public:
root_t(kaitai::kstream* p__io, android_super_t* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~root_t();
private:
geometry_t* m_primary_geometry;
geometry_t* m_backup_geometry;
std::vector<metadata_t*>* m_primary_metadata;
std::vector<metadata_t*>* m_backup_metadata;
android_super_t* m__root;
android_super_t* m__parent;
std::string m__raw_primary_geometry;
kaitai::kstream* m__io__raw_primary_geometry;
std::string m__raw_backup_geometry;
kaitai::kstream* m__io__raw_backup_geometry;
std::vector<std::string>* m__raw_primary_metadata;
std::vector<kaitai::kstream*>* m__io__raw_primary_metadata;
std::vector<std::string>* m__raw_backup_metadata;
std::vector<kaitai::kstream*>* m__io__raw_backup_metadata;
public:
geometry_t* primary_geometry() const { return m_primary_geometry; }
geometry_t* backup_geometry() const { return m_backup_geometry; }
std::vector<metadata_t*>* primary_metadata() const { return m_primary_metadata; }
std::vector<metadata_t*>* backup_metadata() const { return m_backup_metadata; }
android_super_t* _root() const { return m__root; }
android_super_t* _parent() const { return m__parent; }
std::string _raw_primary_geometry() const { return m__raw_primary_geometry; }
kaitai::kstream* _io__raw_primary_geometry() const { return m__io__raw_primary_geometry; }
std::string _raw_backup_geometry() const { return m__raw_backup_geometry; }
kaitai::kstream* _io__raw_backup_geometry() const { return m__io__raw_backup_geometry; }
std::vector<std::string>* _raw_primary_metadata() const { return m__raw_primary_metadata; }
std::vector<kaitai::kstream*>* _io__raw_primary_metadata() const { return m__io__raw_primary_metadata; }
std::vector<std::string>* _raw_backup_metadata() const { return m__raw_backup_metadata; }
std::vector<kaitai::kstream*>* _io__raw_backup_metadata() const { return m__io__raw_backup_metadata; }
};
class geometry_t : public kaitai::kstruct {
public:
geometry_t(kaitai::kstream* p__io, android_super_t::root_t* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~geometry_t();
private:
std::string m_magic;
uint32_t m_struct_size;
std::string m_checksum;
uint32_t m_metadata_max_size;
uint32_t m_metadata_slot_count;
uint32_t m_logical_block_size;
android_super_t* m__root;
android_super_t::root_t* m__parent;
public:
std::string magic() const { return m_magic; }
uint32_t struct_size() const { return m_struct_size; }
/**
* SHA-256 hash of struct_size bytes from beginning of geometry,
* calculated as if checksum were zeroed out
*/
std::string checksum() const { return m_checksum; }
uint32_t metadata_max_size() const { return m_metadata_max_size; }
uint32_t metadata_slot_count() const { return m_metadata_slot_count; }
uint32_t logical_block_size() const { return m_logical_block_size; }
android_super_t* _root() const { return m__root; }
android_super_t::root_t* _parent() const { return m__parent; }
};
class metadata_t : public kaitai::kstruct {
public:
class block_device_t;
class extent_t;
class table_descriptor_t;
class partition_t;
class group_t;
enum table_kind_t {
TABLE_KIND_PARTITIONS = 0,
TABLE_KIND_EXTENTS = 1,
TABLE_KIND_GROUPS = 2,
TABLE_KIND_BLOCK_DEVICES = 3
};
metadata_t(kaitai::kstream* p__io, android_super_t::root_t* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~metadata_t();
class block_device_t : public kaitai::kstruct {
public:
block_device_t(kaitai::kstream* p__io, android_super_t::metadata_t::table_descriptor_t* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~block_device_t();
private:
uint64_t m_first_logical_sector;
uint32_t m_alignment;
uint32_t m_alignment_offset;
uint64_t m_size;
std::string m_partition_name;
bool m_flag_slot_suffixed;
uint64_t m_flags_reserved;
android_super_t* m__root;
android_super_t::metadata_t::table_descriptor_t* m__parent;
public:
uint64_t first_logical_sector() const { return m_first_logical_sector; }
uint32_t alignment() const { return m_alignment; }
uint32_t alignment_offset() const { return m_alignment_offset; }
uint64_t size() const { return m_size; }
std::string partition_name() const { return m_partition_name; }
bool flag_slot_suffixed() const { return m_flag_slot_suffixed; }
uint64_t flags_reserved() const { return m_flags_reserved; }
android_super_t* _root() const { return m__root; }
android_super_t::metadata_t::table_descriptor_t* _parent() const { return m__parent; }
};
class extent_t : public kaitai::kstruct {
public:
enum target_type_t {
TARGET_TYPE_LINEAR = 0,
TARGET_TYPE_ZERO = 1
};
extent_t(kaitai::kstream* p__io, android_super_t::metadata_t::table_descriptor_t* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~extent_t();
private:
uint64_t m_num_sectors;
target_type_t m_target_type;
uint64_t m_target_data;
uint32_t m_target_source;
android_super_t* m__root;
android_super_t::metadata_t::table_descriptor_t* m__parent;
public:
uint64_t num_sectors() const { return m_num_sectors; }
target_type_t target_type() const { return m_target_type; }
uint64_t target_data() const { return m_target_data; }
uint32_t target_source() const { return m_target_source; }
android_super_t* _root() const { return m__root; }
android_super_t::metadata_t::table_descriptor_t* _parent() const { return m__parent; }
};
class table_descriptor_t : public kaitai::kstruct {
public:
table_descriptor_t(table_kind_t p_kind, kaitai::kstream* p__io, android_super_t::metadata_t* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~table_descriptor_t();
private:
bool f_table;
std::vector<kaitai::kstruct*>* m_table;
public:
std::vector<kaitai::kstruct*>* table();
private:
uint32_t m_offset;
uint32_t m_num_entries;
uint32_t m_entry_size;
table_kind_t m_kind;
android_super_t* m__root;
android_super_t::metadata_t* m__parent;
std::vector<std::string>* m__raw_table;
std::vector<kaitai::kstream*>* m__io__raw_table;
public:
uint32_t offset() const { return m_offset; }
uint32_t num_entries() const { return m_num_entries; }
uint32_t entry_size() const { return m_entry_size; }
table_kind_t kind() const { return m_kind; }
android_super_t* _root() const { return m__root; }
android_super_t::metadata_t* _parent() const { return m__parent; }
std::vector<std::string>* _raw_table() const { return m__raw_table; }
std::vector<kaitai::kstream*>* _io__raw_table() const { return m__io__raw_table; }
};
class partition_t : public kaitai::kstruct {
public:
partition_t(kaitai::kstream* p__io, android_super_t::metadata_t::table_descriptor_t* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~partition_t();
private:
std::string m_name;
bool m_attr_readonly;
bool m_attr_slot_suffixed;
bool m_attr_updated;
bool m_attr_disabled;
uint64_t m_attrs_reserved;
uint32_t m_first_extent_index;
uint32_t m_num_extents;
uint32_t m_group_index;
android_super_t* m__root;
android_super_t::metadata_t::table_descriptor_t* m__parent;
public:
std::string name() const { return m_name; }
bool attr_readonly() const { return m_attr_readonly; }
bool attr_slot_suffixed() const { return m_attr_slot_suffixed; }
bool attr_updated() const { return m_attr_updated; }
bool attr_disabled() const { return m_attr_disabled; }
uint64_t attrs_reserved() const { return m_attrs_reserved; }
uint32_t first_extent_index() const { return m_first_extent_index; }
uint32_t num_extents() const { return m_num_extents; }
uint32_t group_index() const { return m_group_index; }
android_super_t* _root() const { return m__root; }
android_super_t::metadata_t::table_descriptor_t* _parent() const { return m__parent; }
};
class group_t : public kaitai::kstruct {
public:
group_t(kaitai::kstream* p__io, android_super_t::metadata_t::table_descriptor_t* p__parent = 0, android_super_t* p__root = 0);
private:
void _read();
void _clean_up();
public:
~group_t();
private:
std::string m_name;
bool m_flag_slot_suffixed;
uint64_t m_flags_reserved;
uint64_t m_maximum_size;
android_super_t* m__root;
android_super_t::metadata_t::table_descriptor_t* m__parent;
public:
std::string name() const { return m_name; }
bool flag_slot_suffixed() const { return m_flag_slot_suffixed; }
uint64_t flags_reserved() const { return m_flags_reserved; }
uint64_t maximum_size() const { return m_maximum_size; }
android_super_t* _root() const { return m__root; }
android_super_t::metadata_t::table_descriptor_t* _parent() const { return m__parent; }
};
private:
std::string m_magic;
uint16_t m_major_version;
uint16_t m_minor_version;
uint32_t m_header_size;
std::string m_header_checksum;
uint32_t m_tables_size;
std::string m_tables_checksum;
table_descriptor_t* m_partitions;
table_descriptor_t* m_extents;
table_descriptor_t* m_groups;
table_descriptor_t* m_block_devices;
android_super_t* m__root;
android_super_t::root_t* m__parent;
public:
std::string magic() const { return m_magic; }
uint16_t major_version() const { return m_major_version; }
uint16_t minor_version() const { return m_minor_version; }
uint32_t header_size() const { return m_header_size; }
/**
* SHA-256 hash of header_size bytes from beginning of metadata,
* calculated as if header_checksum were zeroed out
*/
std::string header_checksum() const { return m_header_checksum; }
uint32_t tables_size() const { return m_tables_size; }
/**
* SHA-256 hash of tables_size bytes from end of header
*/
std::string tables_checksum() const { return m_tables_checksum; }
table_descriptor_t* partitions() const { return m_partitions; }
table_descriptor_t* extents() const { return m_extents; }
table_descriptor_t* groups() const { return m_groups; }
table_descriptor_t* block_devices() const { return m_block_devices; }
android_super_t* _root() const { return m__root; }
android_super_t::root_t* _parent() const { return m__parent; }
};
private:
bool f_root;
root_t* m_root;
public:
root_t* root();
private:
android_super_t* m__root;
kaitai::kstruct* m__parent;
public:
android_super_t* _root() const { return m__root; }
kaitai::kstruct* _parent() const { return m__parent; }
};
#endif // ANDROID_SUPER_H_
// This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
#include "android_super.h"
#include "kaitai/exceptions.h"
android_super_t::android_super_t(kaitai::kstream* p__io, kaitai::kstruct* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = this;
m_root = 0;
f_root = false;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::_read() {
}
android_super_t::~android_super_t() {
_clean_up();
}
void android_super_t::_clean_up() {
if (f_root) {
if (m_root) {
delete m_root; m_root = 0;
}
}
}
android_super_t::root_t::root_t(kaitai::kstream* p__io, android_super_t* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = p__root;
m_primary_geometry = 0;
m__io__raw_primary_geometry = 0;
m_backup_geometry = 0;
m__io__raw_backup_geometry = 0;
m_primary_metadata = 0;
m__raw_primary_metadata = 0;
m__io__raw_primary_metadata = 0;
m_backup_metadata = 0;
m__raw_backup_metadata = 0;
m__io__raw_backup_metadata = 0;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::root_t::_read() {
m__raw_primary_geometry = m__io->read_bytes(4096);
m__io__raw_primary_geometry = new kaitai::kstream(m__raw_primary_geometry);
m_primary_geometry = new geometry_t(m__io__raw_primary_geometry, this, m__root);
m__raw_backup_geometry = m__io->read_bytes(4096);
m__io__raw_backup_geometry = new kaitai::kstream(m__raw_backup_geometry);
m_backup_geometry = new geometry_t(m__io__raw_backup_geometry, this, m__root);
m__raw_primary_metadata = new std::vector<std::string>();
m__io__raw_primary_metadata = new std::vector<kaitai::kstream*>();
m_primary_metadata = new std::vector<metadata_t*>();
const int l_primary_metadata = primary_geometry()->metadata_slot_count();
for (int i = 0; i < l_primary_metadata; i++) {
m__raw_primary_metadata->push_back(m__io->read_bytes(primary_geometry()->metadata_max_size()));
kaitai::kstream* io__raw_primary_metadata = new kaitai::kstream(m__raw_primary_metadata->at(m__raw_primary_metadata->size() - 1));
m__io__raw_primary_metadata->push_back(io__raw_primary_metadata);
m_primary_metadata->push_back(new metadata_t(io__raw_primary_metadata, this, m__root));
}
m__raw_backup_metadata = new std::vector<std::string>();
m__io__raw_backup_metadata = new std::vector<kaitai::kstream*>();
m_backup_metadata = new std::vector<metadata_t*>();
const int l_backup_metadata = primary_geometry()->metadata_slot_count();
for (int i = 0; i < l_backup_metadata; i++) {
m__raw_backup_metadata->push_back(m__io->read_bytes(primary_geometry()->metadata_max_size()));
kaitai::kstream* io__raw_backup_metadata = new kaitai::kstream(m__raw_backup_metadata->at(m__raw_backup_metadata->size() - 1));
m__io__raw_backup_metadata->push_back(io__raw_backup_metadata);
m_backup_metadata->push_back(new metadata_t(io__raw_backup_metadata, this, m__root));
}
}
android_super_t::root_t::~root_t() {
_clean_up();
}
void android_super_t::root_t::_clean_up() {
if (m__io__raw_primary_geometry) {
delete m__io__raw_primary_geometry; m__io__raw_primary_geometry = 0;
}
if (m_primary_geometry) {
delete m_primary_geometry; m_primary_geometry = 0;
}
if (m__io__raw_backup_geometry) {
delete m__io__raw_backup_geometry; m__io__raw_backup_geometry = 0;
}
if (m_backup_geometry) {
delete m_backup_geometry; m_backup_geometry = 0;
}
if (m__raw_primary_metadata) {
delete m__raw_primary_metadata; m__raw_primary_metadata = 0;
}
if (m__io__raw_primary_metadata) {
for (std::vector<kaitai::kstream*>::iterator it = m__io__raw_primary_metadata->begin(); it != m__io__raw_primary_metadata->end(); ++it) {
delete *it;
}
delete m__io__raw_primary_metadata; m__io__raw_primary_metadata = 0;
}
if (m_primary_metadata) {
for (std::vector<metadata_t*>::iterator it = m_primary_metadata->begin(); it != m_primary_metadata->end(); ++it) {
delete *it;
}
delete m_primary_metadata; m_primary_metadata = 0;
}
if (m__raw_backup_metadata) {
delete m__raw_backup_metadata; m__raw_backup_metadata = 0;
}
if (m__io__raw_backup_metadata) {
for (std::vector<kaitai::kstream*>::iterator it = m__io__raw_backup_metadata->begin(); it != m__io__raw_backup_metadata->end(); ++it) {
delete *it;
}
delete m__io__raw_backup_metadata; m__io__raw_backup_metadata = 0;
}
if (m_backup_metadata) {
for (std::vector<metadata_t*>::iterator it = m_backup_metadata->begin(); it != m_backup_metadata->end(); ++it) {
delete *it;
}
delete m_backup_metadata; m_backup_metadata = 0;
}
}
android_super_t::geometry_t::geometry_t(kaitai::kstream* p__io, android_super_t::root_t* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = p__root;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::geometry_t::_read() {
m_magic = m__io->read_bytes(4);
if (!(magic() == std::string("\x67\x44\x6C\x61", 4))) {
throw kaitai::validation_not_equal_error<std::string>(std::string("\x67\x44\x6C\x61", 4), magic(), _io(), std::string("/types/geometry/seq/0"));
}
m_struct_size = m__io->read_u4le();
m_checksum = m__io->read_bytes(32);
m_metadata_max_size = m__io->read_u4le();
m_metadata_slot_count = m__io->read_u4le();
m_logical_block_size = m__io->read_u4le();
}
android_super_t::geometry_t::~geometry_t() {
_clean_up();
}
void android_super_t::geometry_t::_clean_up() {
}
android_super_t::metadata_t::metadata_t(kaitai::kstream* p__io, android_super_t::root_t* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = p__root;
m_partitions = 0;
m_extents = 0;
m_groups = 0;
m_block_devices = 0;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::metadata_t::_read() {
m_magic = m__io->read_bytes(4);
if (!(magic() == std::string("\x30\x50\x4C\x41", 4))) {
throw kaitai::validation_not_equal_error<std::string>(std::string("\x30\x50\x4C\x41", 4), magic(), _io(), std::string("/types/metadata/seq/0"));
}
m_major_version = m__io->read_u2le();
m_minor_version = m__io->read_u2le();
m_header_size = m__io->read_u4le();
m_header_checksum = m__io->read_bytes(32);
m_tables_size = m__io->read_u4le();
m_tables_checksum = m__io->read_bytes(32);
m_partitions = new table_descriptor_t(android_super_t::metadata_t::TABLE_KIND_PARTITIONS, m__io, this, m__root);
m_extents = new table_descriptor_t(android_super_t::metadata_t::TABLE_KIND_EXTENTS, m__io, this, m__root);
m_groups = new table_descriptor_t(android_super_t::metadata_t::TABLE_KIND_GROUPS, m__io, this, m__root);
m_block_devices = new table_descriptor_t(android_super_t::metadata_t::TABLE_KIND_BLOCK_DEVICES, m__io, this, m__root);
}
android_super_t::metadata_t::~metadata_t() {
_clean_up();
}
void android_super_t::metadata_t::_clean_up() {
if (m_partitions) {
delete m_partitions; m_partitions = 0;
}
if (m_extents) {
delete m_extents; m_extents = 0;
}
if (m_groups) {
delete m_groups; m_groups = 0;
}
if (m_block_devices) {
delete m_block_devices; m_block_devices = 0;
}
}
android_super_t::metadata_t::block_device_t::block_device_t(kaitai::kstream* p__io, android_super_t::metadata_t::table_descriptor_t* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = p__root;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::metadata_t::block_device_t::_read() {
m_first_logical_sector = m__io->read_u8le();
m_alignment = m__io->read_u4le();
m_alignment_offset = m__io->read_u4le();
m_size = m__io->read_u8le();
m_partition_name = kaitai::kstream::bytes_to_str(kaitai::kstream::bytes_terminate(m__io->read_bytes(36), 0, false), std::string("UTF-8"));
m_flag_slot_suffixed = m__io->read_bits_int_le(1);
m_flags_reserved = m__io->read_bits_int_le(31);
}
android_super_t::metadata_t::block_device_t::~block_device_t() {
_clean_up();
}
void android_super_t::metadata_t::block_device_t::_clean_up() {
}
android_super_t::metadata_t::extent_t::extent_t(kaitai::kstream* p__io, android_super_t::metadata_t::table_descriptor_t* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = p__root;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::metadata_t::extent_t::_read() {
m_num_sectors = m__io->read_u8le();
m_target_type = static_cast<android_super_t::metadata_t::extent_t::target_type_t>(m__io->read_u4le());
m_target_data = m__io->read_u8le();
m_target_source = m__io->read_u4le();
}
android_super_t::metadata_t::extent_t::~extent_t() {
_clean_up();
}
void android_super_t::metadata_t::extent_t::_clean_up() {
}
android_super_t::metadata_t::table_descriptor_t::table_descriptor_t(table_kind_t p_kind, kaitai::kstream* p__io, android_super_t::metadata_t* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = p__root;
m_kind = p_kind;
m_table = 0;
m__raw_table = 0;
m__io__raw_table = 0;
f_table = false;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::metadata_t::table_descriptor_t::_read() {
m_offset = m__io->read_u4le();
m_num_entries = m__io->read_u4le();
m_entry_size = m__io->read_u4le();
}
android_super_t::metadata_t::table_descriptor_t::~table_descriptor_t() {
_clean_up();
}
void android_super_t::metadata_t::table_descriptor_t::_clean_up() {
if (f_table) {
if (m__raw_table) {
delete m__raw_table; m__raw_table = 0;
}
if (m__io__raw_table) {
for (std::vector<kaitai::kstream*>::iterator it = m__io__raw_table->begin(); it != m__io__raw_table->end(); ++it) {
delete *it;
}
delete m__io__raw_table; m__io__raw_table = 0;
}
if (m_table) {
for (std::vector<kaitai::kstruct*>::iterator it = m_table->begin(); it != m_table->end(); ++it) {
delete *it;
}
delete m_table; m_table = 0;
}
}
}
std::vector<kaitai::kstruct*>* android_super_t::metadata_t::table_descriptor_t::table() {
if (f_table)
return m_table;
std::streampos _pos = m__io->pos();
m__io->seek((_parent()->header_size() + offset()));
m__raw_table = new std::vector<std::string>();
m__io__raw_table = new std::vector<kaitai::kstream*>();
m_table = new std::vector<kaitai::kstruct*>();
const int l_table = num_entries();
for (int i = 0; i < l_table; i++) {
switch (kind()) {
case android_super_t::metadata_t::TABLE_KIND_PARTITIONS: {
m__raw_table->push_back(m__io->read_bytes(entry_size()));
kaitai::kstream* io__raw_table = new kaitai::kstream(m__raw_table->at(m__raw_table->size() - 1));
m__io__raw_table->push_back(io__raw_table);
m_table->push_back(new partition_t(io__raw_table, this, m__root));
break;
}
case android_super_t::metadata_t::TABLE_KIND_EXTENTS: {
m__raw_table->push_back(m__io->read_bytes(entry_size()));
kaitai::kstream* io__raw_table = new kaitai::kstream(m__raw_table->at(m__raw_table->size() - 1));
m__io__raw_table->push_back(io__raw_table);
m_table->push_back(new extent_t(io__raw_table, this, m__root));
break;
}
case android_super_t::metadata_t::TABLE_KIND_GROUPS: {
m__raw_table->push_back(m__io->read_bytes(entry_size()));
kaitai::kstream* io__raw_table = new kaitai::kstream(m__raw_table->at(m__raw_table->size() - 1));
m__io__raw_table->push_back(io__raw_table);
m_table->push_back(new group_t(io__raw_table, this, m__root));
break;
}
case android_super_t::metadata_t::TABLE_KIND_BLOCK_DEVICES: {
m__raw_table->push_back(m__io->read_bytes(entry_size()));
kaitai::kstream* io__raw_table = new kaitai::kstream(m__raw_table->at(m__raw_table->size() - 1));
m__io__raw_table->push_back(io__raw_table);
m_table->push_back(new block_device_t(io__raw_table, this, m__root));
break;
}
default: {
m__raw_table->push_back(m__io->read_bytes(entry_size()));
break;
}
}
}
m__io->seek(_pos);
f_table = true;
return m_table;
}
android_super_t::metadata_t::partition_t::partition_t(kaitai::kstream* p__io, android_super_t::metadata_t::table_descriptor_t* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = p__root;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::metadata_t::partition_t::_read() {
m_name = kaitai::kstream::bytes_to_str(kaitai::kstream::bytes_terminate(m__io->read_bytes(36), 0, false), std::string("UTF-8"));
m_attr_readonly = m__io->read_bits_int_le(1);
m_attr_slot_suffixed = m__io->read_bits_int_le(1);
m_attr_updated = m__io->read_bits_int_le(1);
m_attr_disabled = m__io->read_bits_int_le(1);
m_attrs_reserved = m__io->read_bits_int_le(28);
m__io->align_to_byte();
m_first_extent_index = m__io->read_u4le();
m_num_extents = m__io->read_u4le();
m_group_index = m__io->read_u4le();
}
android_super_t::metadata_t::partition_t::~partition_t() {
_clean_up();
}
void android_super_t::metadata_t::partition_t::_clean_up() {
}
android_super_t::metadata_t::group_t::group_t(kaitai::kstream* p__io, android_super_t::metadata_t::table_descriptor_t* p__parent, android_super_t* p__root) : kaitai::kstruct(p__io) {
m__parent = p__parent;
m__root = p__root;
try {
_read();
} catch(...) {
_clean_up();
throw;
}
}
void android_super_t::metadata_t::group_t::_read() {
m_name = kaitai::kstream::bytes_to_str(kaitai::kstream::bytes_terminate(m__io->read_bytes(36), 0, false), std::string("UTF-8"));
m_flag_slot_suffixed = m__io->read_bits_int_le(1);
m_flags_reserved = m__io->read_bits_int_le(31);
m__io->align_to_byte();
m_maximum_size = m__io->read_u8le();
}
android_super_t::metadata_t::group_t::~group_t() {
_clean_up();
}
void android_super_t::metadata_t::group_t::_clean_up() {
}
android_super_t::root_t* android_super_t::root() {
if (f_root)
return m_root;
std::streampos _pos = m__io->pos();
m__io->seek(4096);
m_root = new root_t(m__io, this, m__root);
m__io->seek(_pos);
f_root = true;
return m_root;
}