xfs::Superblock Struct Reference

#include <xfs_format.hpp>

Public Member Functions
unsigned	format_version () const
bool	is_v5 () const
bool	is_v4 () const
bool	has_crc () const
bool	has_ftype () const
uint64_t	volume_size_bytes () const
std::string	label () const

Public Attributes
uint32_t	magicnum {0}
uint32_t	blocksize {0}
uint64_t	dblocks {0}
uint64_t	rblocks {0}
uint64_t	rextents {0}
std::array< uint8_t, 16 >	uuid {}
uint64_t	logstart {0}
uint64_t	rootino {0}
uint64_t	rbmino {0}
uint64_t	rsumino {0}
uint32_t	rextsize {0}
uint32_t	agblocks {0}
uint32_t	agcount {0}
uint32_t	rbmblocks {0}
uint32_t	logblocks {0}
uint16_t	versionnum {0}
uint16_t	sectsize {0}
uint16_t	inodesize {0}
uint16_t	inopblock {0}
std::array< char, 12 >	fname {}
uint8_t	blocklog {0}
uint8_t	sectlog {0}
uint8_t	inodelog {0}
uint8_t	inopblog {0}
uint8_t	agblklog {0}
uint8_t	rextslog {0}
uint8_t	inprogress {0}
uint8_t	imax_pct {0}
uint64_t	icount {0}
uint64_t	ifree {0}
uint64_t	fdblocks {0}
uint64_t	frextents {0}
uint64_t	uquotino {0}
uint64_t	gquotino {0}
uint16_t	qflags {0}
uint8_t	flags {0}
uint8_t	shared_vn {0}
uint32_t	inoalignmt {0}
uint32_t	unit {0}
uint32_t	width {0}
uint8_t	dirblklog {0}
uint8_t	logsectlog {0}
uint16_t	logsectsize {0}
uint32_t	logsunit {0}
uint32_t	features2 {0}
uint32_t	bad_features2 {0}
uint32_t	features_compat {0}
uint32_t	features_ro_compat {0}
uint32_t	features_incompat {0}
uint32_t	features_log_incompat {0}
uint32_t	crc {0}
uint32_t	spino_align {0}
uint64_t	pquotino {0}
uint64_t	lsn {0}
std::array< uint8_t, 16 >	meta_uuid {}

Detailed Description

Definition at line 132 of file xfs_format.hpp.

Member Function Documentation

format_version()

unsigned xfs::Superblock::format_version ( ) const

inline

Definition at line 193 of file xfs_format.hpp.

{ return versionnum & XFS_SB_VERSION_NUMBITS; }

References versionnum, and xfs::XFS_SB_VERSION_NUMBITS.

Referenced by is_v4(), is_v5(), xfs::parse_superblock(), XfsRecovery::recover(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

has_crc()

bool xfs::Superblock::has_crc ( ) const

inline

Definition at line 196 of file xfs_format.hpp.

{ return is_v5(); }

References is_v5().

has_ftype()

bool xfs::Superblock::has_ftype ( ) const

inline

Definition at line 197 of file xfs_format.hpp.

                           {
        // FTYPE bit on V5 lives in features_incompat; on V4 it's part of features2
        if (is_v5()) return (features_incompat & XFS_SB_FEAT_INCOMPAT_FTYPE) != 0;
        // V4 stored ftype in features2 bit 0x80 (XFS_SB_VERSION2_FTYPE)
        return (features2 & 0x00000080u) != 0;
    }

References features2, features_incompat, is_v5(), and xfs::XFS_SB_FEAT_INCOMPAT_FTYPE.

Referenced by XfsRecovery::recover(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

is_v4()

bool xfs::Superblock::is_v4 ( ) const

inline

Definition at line 195 of file xfs_format.hpp.

{ return format_version() == XFS_SB_VERSION_4; }

References format_version(), and xfs::XFS_SB_VERSION_4.

is_v5()

bool xfs::Superblock::is_v5 ( ) const

inline

Definition at line 194 of file xfs_format.hpp.

{ return format_version() == XFS_SB_VERSION_5; }

References format_version(), and xfs::XFS_SB_VERSION_5.

Referenced by anonymous_namespace{xfs_recovery.cpp}::collect_dir_entries_block_or_leaf(), anonymous_namespace{xfs_recovery.cpp}::collect_extents(), has_crc(), has_ftype(), anonymous_namespace{xfs_recovery.cpp}::load_ag_headers(), XfsRecovery::recover(), xfs::walk_all_free_inode_records(), xfs::walk_free_inode_btree(), xfs::anonymous_namespace{xfs_btree.cpp}::walk_ibt_block(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

label()

std::string xfs::Superblock::label ( ) const

inline

Definition at line 204 of file xfs_format.hpp.

                            {
        std::string s(fname.data(), fname.size());
        while (!s.empty() && (s.back() == '\0' || s.back() == ' ')) s.pop_back();
        return s;
    }

References fname.

Referenced by XfsRecovery::recover(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

volume_size_bytes()

uint64_t xfs::Superblock::volume_size_bytes ( ) const

inline

Definition at line 203 of file xfs_format.hpp.

{ return dblocks * blocksize; }

References blocksize, and dblocks.

Referenced by XfsRecovery::recover(), anonymous_namespace{xfs_recovery.cpp}::validate_geometry(), anonymous_namespace{filesystem_probes.cpp}::xfs_probe(), and anonymous_namespace{lost_partition_finder.cpp}::xfs_size_bytes().

Member Data Documentation

agblklog

uint8_t xfs::Superblock::agblklog {0}

Definition at line 158 of file xfs_format.hpp.

Referenced by xfs::crack_inode(), xfs::expand_chunk(), xfs::expand_chunk_free(), xfs::anonymous_namespace{xfs_btree.cpp}::fsb_to_byte_offset_local(), xfs::fsb_to_disk_offset(), and xfs::parse_superblock().

agblocks

uint32_t xfs::Superblock::agblocks {0}

Definition at line 145 of file xfs_format.hpp.

Referenced by xfs::anonymous_namespace{xfs_btree.cpp}::ag_block_to_disk_offset(), xfs::anonymous_namespace{xfs_btree.cpp}::fsb_to_byte_offset_local(), xfs::fsb_to_disk_offset(), anonymous_namespace{xfs_recovery.cpp}::load_ag_headers(), xfs::parse_superblock(), anonymous_namespace{xfs_recovery.cpp}::read_dinode(), XfsRecovery::recover(), xfs::anonymous_namespace{xfs_btree.cpp}::walk_ibt_block(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

agcount

uint32_t xfs::Superblock::agcount {0}

Definition at line 146 of file xfs_format.hpp.

Referenced by xfs::parse_superblock(), anonymous_namespace{xfs_recovery.cpp}::read_dinode(), XfsRecovery::recover(), xfs::walk_all_free_inode_records(), xfs::walk_all_inode_records(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

bad_features2

uint32_t xfs::Superblock::bad_features2 {0}

Definition at line 181 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

blocklog

uint8_t xfs::Superblock::blocklog {0}

Definition at line 154 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

blocksize

uint32_t xfs::Superblock::blocksize {0}

Definition at line 135 of file xfs_format.hpp.

Referenced by xfs::anonymous_namespace{xfs_btree.cpp}::ag_block_to_disk_offset(), anonymous_namespace{xfs_recovery.cpp}::collect_dir_entries_block_or_leaf(), xfs::anonymous_namespace{xfs_btree.cpp}::fsb_to_byte_offset_local(), xfs::fsb_to_disk_offset(), anonymous_namespace{xfs_recovery.cpp}::load_ag_headers(), xfs::parse_superblock(), anonymous_namespace{xfs_recovery.cpp}::read_dinode(), anonymous_namespace{xfs_recovery.cpp}::read_extents_data(), XfsRecovery::recover(), volume_size_bytes(), xfs::anonymous_namespace{xfs_btree.cpp}::walk_bmbt_block(), xfs::anonymous_namespace{xfs_btree.cpp}::walk_ibt_block(), anonymous_namespace{xfs_recovery.cpp}::write_extents_to_path(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

crc

uint32_t xfs::Superblock::crc {0}

Definition at line 186 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

dblocks

uint64_t xfs::Superblock::dblocks {0}

Definition at line 136 of file xfs_format.hpp.

Referenced by xfs::parse_superblock(), XfsRecovery::recover(), volume_size_bytes(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

dirblklog

uint8_t xfs::Superblock::dirblklog {0}

Definition at line 174 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

fdblocks

uint64_t xfs::Superblock::fdblocks {0}

Definition at line 164 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

features2

uint32_t xfs::Superblock::features2 {0}

Definition at line 178 of file xfs_format.hpp.

Referenced by has_ftype(), and xfs::parse_superblock().

features_compat

uint32_t xfs::Superblock::features_compat {0}

Definition at line 182 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

features_incompat

uint32_t xfs::Superblock::features_incompat {0}

Definition at line 184 of file xfs_format.hpp.

Referenced by has_ftype(), xfs::parse_superblock(), XfsRecovery::recover(), and xfs::anonymous_namespace{xfs_btree.cpp}::walk_ibt_block().

features_log_incompat

uint32_t xfs::Superblock::features_log_incompat {0}

Definition at line 185 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

features_ro_compat

uint32_t xfs::Superblock::features_ro_compat {0}

Definition at line 183 of file xfs_format.hpp.

Referenced by xfs::parse_superblock(), XfsRecovery::recover(), xfs::walk_all_free_inode_records(), xfs::walk_free_inode_btree(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

flags

uint8_t xfs::Superblock::flags {0}

Definition at line 169 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

fname

std::array<char, 12> xfs::Superblock::fname {}

Definition at line 153 of file xfs_format.hpp.

Referenced by label(), and xfs::parse_superblock().

frextents

uint64_t xfs::Superblock::frextents {0}

Definition at line 165 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

gquotino

uint64_t xfs::Superblock::gquotino {0}

Definition at line 167 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

icount

uint64_t xfs::Superblock::icount {0}

Definition at line 162 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

ifree

uint64_t xfs::Superblock::ifree {0}

Definition at line 163 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

imax_pct

uint8_t xfs::Superblock::imax_pct {0}

Definition at line 161 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

inoalignmt

uint32_t xfs::Superblock::inoalignmt {0}

Definition at line 171 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

inodelog

uint8_t xfs::Superblock::inodelog {0}

Definition at line 156 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

inodesize

uint16_t xfs::Superblock::inodesize {0}

Definition at line 151 of file xfs_format.hpp.

Referenced by xfs::expand_chunk(), xfs::expand_chunk_free(), xfs::parse_superblock(), anonymous_namespace{xfs_recovery.cpp}::read_dinode(), XfsRecovery::recover(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

inopblock

uint16_t xfs::Superblock::inopblock {0}

Definition at line 152 of file xfs_format.hpp.

Referenced by xfs::crack_inode(), xfs::expand_chunk(), xfs::expand_chunk_free(), xfs::parse_superblock(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

inopblog

uint8_t xfs::Superblock::inopblog {0}

Definition at line 157 of file xfs_format.hpp.

Referenced by xfs::crack_inode(), xfs::expand_chunk(), xfs::expand_chunk_free(), and xfs::parse_superblock().

inprogress

uint8_t xfs::Superblock::inprogress {0}

Definition at line 160 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

logblocks

uint32_t xfs::Superblock::logblocks {0}

Definition at line 148 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

logsectlog

uint8_t xfs::Superblock::logsectlog {0}

Definition at line 175 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

logsectsize

uint16_t xfs::Superblock::logsectsize {0}

Definition at line 176 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

logstart

uint64_t xfs::Superblock::logstart {0}

Definition at line 140 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

logsunit

uint32_t xfs::Superblock::logsunit {0}

Definition at line 177 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

lsn

uint64_t xfs::Superblock::lsn {0}

Definition at line 189 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

magicnum

uint32_t xfs::Superblock::magicnum {0}

Definition at line 134 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

meta_uuid

std::array<uint8_t, 16> xfs::Superblock::meta_uuid {}

Definition at line 190 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

pquotino

uint64_t xfs::Superblock::pquotino {0}

Definition at line 188 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

qflags

uint16_t xfs::Superblock::qflags {0}

Definition at line 168 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

rblocks

uint64_t xfs::Superblock::rblocks {0}

Definition at line 137 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

rbmblocks

uint32_t xfs::Superblock::rbmblocks {0}

Definition at line 147 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

rbmino

uint64_t xfs::Superblock::rbmino {0}

Definition at line 142 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

rextents

uint64_t xfs::Superblock::rextents {0}

Definition at line 138 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

rextsize

uint32_t xfs::Superblock::rextsize {0}

Definition at line 144 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

rextslog

uint8_t xfs::Superblock::rextslog {0}

Definition at line 159 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

rootino

uint64_t xfs::Superblock::rootino {0}

Definition at line 141 of file xfs_format.hpp.

Referenced by xfs::parse_superblock(), and XfsRecovery::recover().

rsumino

uint64_t xfs::Superblock::rsumino {0}

Definition at line 143 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

sectlog

uint8_t xfs::Superblock::sectlog {0}

Definition at line 155 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

sectsize

uint16_t xfs::Superblock::sectsize {0}

Definition at line 150 of file xfs_format.hpp.

Referenced by anonymous_namespace{xfs_recovery.cpp}::load_ag_headers(), xfs::parse_superblock(), XfsRecovery::recover(), and anonymous_namespace{filesystem_probes.cpp}::xfs_probe().

shared_vn

uint8_t xfs::Superblock::shared_vn {0}

Definition at line 170 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

spino_align

uint32_t xfs::Superblock::spino_align {0}

Definition at line 187 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

unit

uint32_t xfs::Superblock::unit {0}

Definition at line 172 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

uquotino

uint64_t xfs::Superblock::uquotino {0}

Definition at line 166 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

uuid

std::array<uint8_t, 16> xfs::Superblock::uuid {}

Definition at line 139 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

versionnum

uint16_t xfs::Superblock::versionnum {0}

Definition at line 149 of file xfs_format.hpp.

Referenced by format_version(), and xfs::parse_superblock().

width

uint32_t xfs::Superblock::width {0}

Definition at line 173 of file xfs_format.hpp.

Referenced by xfs::parse_superblock().

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The documentation for this struct was generated from the following file:

• BastionGuard/thirdparty/bastionguard-recovery-data/src/xfs_format.hpp