2025年filesystem的作用linux,filesystems_linux.go

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// +build linux

package main

const (

// man statfs

ADFS_SUPER_MAGIC = 0xadf5

AFFS_SUPER_MAGIC = 0xADFF

AUTOFS_SUPER_MAGIC = 0x0187

BDEVFS_MAGIC = 0x

BEFS_SUPER_MAGIC = 0x

BFS_MAGIC = 0x1BADFACE

BINFMTFS_MAGIC = 0x42494e4d

BPF_FS_MAGIC = 0xcafe4a11

BTRFS_SUPER_MAGIC = 0xE

CGROUP_SUPER_MAGIC = 0x27e0eb

CGROUP2_SUPER_MAGIC = 0x

CIFS_MAGIC_NUMBER = 0xFF534D42

CODA_SUPER_MAGIC = 0x

COH_SUPER_MAGIC = 0x012FF7B7

CONFIGFS_MAGIC = 0x

CRAMFS_MAGIC = 0x28cd3d45

DEBUGFS_MAGIC = 0x

DEVFS_SUPER_MAGIC = 0x1373

DEVPTS_SUPER_MAGIC = 0x1cd1

EFIVARFS_MAGIC = 0xde5e81e4

EFS_SUPER_MAGIC = 0x00414A53

EXT_SUPER_MAGIC = 0x137D

EXT2_OLD_SUPER_MAGIC = 0xEF51

EXT2_SUPER_MAGIC = 0xEF53

EXT3_SUPER_MAGIC = 0xEF53

EXT4_SUPER_MAGIC = 0xEF53

FUSE_SUPER_MAGIC = 0x

FUTEXFS_SUPER_MAGIC = 0xBAD1DEA

HFS_SUPER_MAGIC = 0x4244

HFSPLUS_SUPER_MAGIC = 0x482b

HOSTFS_SUPER_MAGIC = 0x00c0ffee

HPFS_SUPER_MAGIC = 0xF995E849

HUGETLBFS_MAGIC = 0xf6

ISOFS_SUPER_MAGIC = 0x9660

JFFS2_SUPER_MAGIC = 0x72b6

JFS_SUPER_MAGIC = 0xa

MINIX_SUPER_MAGIC = 0x137F /* orig. minix */

MINIX_SUPER_MAGIC2 = 0x138F /* 30 char minix */

MINIX2_SUPER_MAGIC = 0x2468 /* minix V2 */

MINIX2_SUPER_MAGIC2 = 0x2478 /* minix V2, 30 char names */

MINIX3_SUPER_MAGIC = 0x4d5a /* minix V3 fs, 60 char names */

MQUEUE_MAGIC = 0x

MSDOS_SUPER_MAGIC = 0x4d44

NCP_SUPER_MAGIC = 0x564c

NFS_SUPER_MAGIC = 0x6969

NILFS_SUPER_MAGIC = 0x3434

NTFS_SB_MAGIC = 0xe

OCFS2_SUPER_MAGIC = 0xf

OPENPROM_SUPER_MAGIC = 0x9fa1

PIPEFS_MAGIC = 0x

PROC_SUPER_MAGIC = 0x9fa0

PSTOREFS_MAGIC = 0xC

QNX4_SUPER_MAGIC = 0x002f

QNX6_SUPER_MAGIC = 0x

RAMFS_MAGIC = 0xf6

REISERFS_SUPER_MAGIC = 0x

ROMFS_MAGIC = 0x7275

SELINUX_MAGIC = 0xf97cff8c

SMACK_MAGIC = 0x43415d53

SMB_SUPER_MAGIC = 0x517B

SMB2_MAGIC_NUMBER = 0xfe534d42

SOCKFS_MAGIC = 0x534F434B

SQUASHFS_MAGIC = 0x

SYSFS_MAGIC = 0x

SYSV2_SUPER_MAGIC = 0x012FF7B6

SYSV4_SUPER_MAGIC = 0x012FF7B5

TMPFS_MAGIC = 0x0

TRACEFS_MAGIC = 0x

UDF_SUPER_MAGIC = 0x

UFS_MAGIC = 0x00011954

USBDEVICE_SUPER_MAGIC = 0x9fa2

V9FS_MAGIC = 0x0

VXFS_SUPER_MAGIC = 0xa501FCF5

XENFS_SUPER_MAGIC = 0xabba1974

XENIX_SUPER_MAGIC = 0x012FF7B4

XFS_SUPER_MAGIC = 0x

_XIAFS_SUPER_MAGIC = 0x012FD16D

AFS_SUPER_MAGIC = 0xF

AUFS_SUPER_MAGIC = 0x

ANON_INODE_FS_SUPER_MAGIC = 0x0

CEPH_SUPER_MAGIC = 0x00C36400

ECRYPTFS_SUPER_MAGIC = 0xF15F

FAT_SUPER_MAGIC = 0x4006

FHGFS_SUPER_MAGIC = 0x

FUSEBLK_SUPER_MAGIC = 0x

FUSECTL_SUPER_MAGIC = 0x

GFS_SUPER_MAGIC = 0x

GPFS_SUPER_MAGIC = 0x

MTD_INODE_FS_SUPER_MAGIC = 0x

INOTIFYFS_SUPER_MAGIC = 0x2BAD1DEA

ISOFS_R_WIN_SUPER_MAGIC = 0x4004

ISOFS_WIN_SUPER_MAGIC = 0x4000

JFFS_SUPER_MAGIC = 0x07C0

KAFS_SUPER_MAGIC = 0x6B

LUSTRE_SUPER_MAGIC = 0x0BD00BD0

NFSD_SUPER_MAGIC = 0x6E

PANFS_SUPER_MAGIC = 0xAAD7AAEA

RPC_PIPEFS_SUPER_MAGIC = 0x

SECURITYFS_SUPER_MAGIC = 0x

UFS_BYTESWAPPED_SUPER_MAGIC = 0x

VMHGFS_SUPER_MAGIC = 0xBACBACBC

VZFS_SUPER_MAGIC = 0x565A4653

ZFS_SUPER_MAGIC = 0x2FC12FC1

)

// coreutils/src/stat.c

var fsTypeMap = map[int64]string{

ADFS_SUPER_MAGIC: "adfs", /* 0xADF5 local */

AFFS_SUPER_MAGIC: "affs", /* 0xADFF local */

AFS_SUPER_MAGIC: "afs", /* 0xF remote */

ANON_INODE_FS_SUPER_MAGIC: "anon-inode FS", /* 0x0 local */

AUFS_SUPER_MAGIC: "aufs", /* 0x remote */

AUTOFS_SUPER_MAGIC: "autofs", /* 0x0187 local */

BEFS_SUPER_MAGIC: "befs", /* 0x local */

BDEVFS_MAGIC: "bdevfs", /* 0x local */

BFS_MAGIC: "bfs", /* 0x1BADFACE local */

BINFMTFS_MAGIC: "binfmt_misc", /* 0x42494E4D local */

BTRFS_SUPER_MAGIC: "btrfs", /* 0xE local */

CEPH_SUPER_MAGIC: "ceph", /* 0x00C36400 remote */

CGROUP_SUPER_MAGIC: "cgroupfs", /* 0x0027E0EB local */

CIFS_MAGIC_NUMBER: "cifs", /* 0xFF534D42 remote */

CODA_SUPER_MAGIC: "coda", /* 0x remote */

COH_SUPER_MAGIC: "coh", /* 0x012FF7B7 local */

CRAMFS_MAGIC: "cramfs", /* 0x28CD3D45 local */

DEBUGFS_MAGIC: "debugfs", /* 0x local */

DEVFS_SUPER_MAGIC: "devfs", /* 0x1373 local */

DEVPTS_SUPER_MAGIC: "devpts", /* 0x1CD1 local */

ECRYPTFS_SUPER_MAGIC: "ecryptfs", /* 0xF15F local */

EFS_SUPER_MAGIC: "efs", /* 0x00414A53 local */

EXT_SUPER_MAGIC: "ext", /* 0x137D local */

EXT2_SUPER_MAGIC: "ext2/ext3", /* 0xEF53 local */

EXT2_OLD_SUPER_MAGIC: "ext2", /* 0xEF51 local */

FAT_SUPER_MAGIC: "fat", /* 0x4006 local */

FHGFS_SUPER_MAGIC: "fhgfs", /* 0x remote */

FUSEBLK_SUPER_MAGIC: "fuseblk", /* 0x remote */

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FUSECTL_SUPER_MAGIC: "fusectl", /* 0x remote */

FUTEXFS_SUPER_MAGIC: "futexfs", /* 0x0BAD1DEA local */

GFS_SUPER_MAGIC: "gfs/gfs2", /* 0x remote */

GPFS_SUPER_MAGIC: "gpfs", /* 0x remote */

HFS_SUPER_MAGIC: "hfs", /* 0x4244 local */

HFSPLUS_SUPER_MAGIC: "hfsplus", /* 0x482b local */

HPFS_SUPER_MAGIC: "hpfs", /* 0xF995E849 local */

HUGETLBFS_MAGIC: "hugetlbfs", /* 0xF6 local */

MTD_INODE_FS_SUPER_MAGIC: "inodefs", /* 0x local */

INOTIFYFS_SUPER_MAGIC: "inotifyfs", /* 0x2BAD1DEA local */

ISOFS_SUPER_MAGIC: "isofs", /* 0x9660 local */

ISOFS_R_WIN_SUPER_MAGIC: "isofs", /* 0x4004 local */

ISOFS_WIN_SUPER_MAGIC: "isofs", /* 0x4000 local */

JFFS_SUPER_MAGIC: "jffs", /* 0x07C0 local */

JFFS2_SUPER_MAGIC: "jffs2", /* 0x72B6 local */

JFS_SUPER_MAGIC: "jfs", /* 0xA local */

KAFS_SUPER_MAGIC: "k-afs", /* 0x6B remote */

LUSTRE_SUPER_MAGIC: "lustre", /* 0x0BD00BD0 remote */

MINIX_SUPER_MAGIC: "minix", /* 0x137F local */

MINIX_SUPER_MAGIC2: "minix (30 char.)", /* 0x138F local */

MINIX2_SUPER_MAGIC: "minix v2", /* 0x2468 local */

MINIX2_SUPER_MAGIC2: "minix v2 (30 char.)", /* 0x2478 local */

MINIX3_SUPER_MAGIC: "minix3", /* 0x4D5A local */

MQUEUE_MAGIC: "mqueue", /* 0x local */

MSDOS_SUPER_MAGIC: "msdos", /* 0x4D44 local */

NCP_SUPER_MAGIC: "novell", /* 0x564C remote */

NFS_SUPER_MAGIC: "nfs", /* 0x6969 remote */

NFSD_SUPER_MAGIC: "nfsd", /* 0x6E remote */

NILFS_SUPER_MAGIC: "nilfs", /* 0x3434 local */

NTFS_SB_MAGIC: "ntfs", /* 0xE local */

OPENPROM_SUPER_MAGIC: "openprom", /* 0x9FA1 local */

OCFS2_SUPER_MAGIC: "ocfs2", /* 0xf remote */

PANFS_SUPER_MAGIC: "panfs", /* 0xAAD7AAEA remote */

PIPEFS_MAGIC: "pipefs", /* 0x remote */

PROC_SUPER_MAGIC: "proc", /* 0x9FA0 local */

PSTOREFS_MAGIC: "pstorefs", /* 0xC local */

QNX4_SUPER_MAGIC: "qnx4", /* 0x002F local */

QNX6_SUPER_MAGIC: "qnx6", /* 0x local */

RAMFS_MAGIC: "ramfs", /* 0xF6 local */

REISERFS_SUPER_MAGIC: "reiserfs", /* 0x local */

ROMFS_MAGIC: "romfs", /* 0x7275 local */

RPC_PIPEFS_SUPER_MAGIC: "rpc_pipefs", /* 0x local */

SECURITYFS_SUPER_MAGIC: "securityfs", /* 0x local */

SELINUX_MAGIC: "selinux", /* 0xF97CFF8C local */

SMB_SUPER_MAGIC: "smb", /* 0x517B remote */

SMB2_MAGIC_NUMBER: "smb2", /* 0xfe534d42 remote */

SOCKFS_MAGIC: "sockfs", /* 0x534F434B local */

SQUASHFS_MAGIC: "squashfs", /* 0x local */

SYSFS_MAGIC: "sysfs", /* 0x local */

SYSV2_SUPER_MAGIC: "sysv2", /* 0x012FF7B6 local */

SYSV4_SUPER_MAGIC: "sysv4", /* 0x012FF7B5 local */

TMPFS_MAGIC: "tmpfs", /* 0x0 local */

UDF_SUPER_MAGIC: "udf", /* 0x local */

UFS_MAGIC: "ufs", /* 0x00011954 local */

UFS_BYTESWAPPED_SUPER_MAGIC: "ufs", /* 0x local */

USBDEVICE_SUPER_MAGIC: "usbdevfs", /* 0x9FA2 local */

V9FS_MAGIC: "v9fs", /* 0x0 local */

VMHGFS_SUPER_MAGIC: "vmhgfs", /* 0xBACBACBC remote */

VXFS_SUPER_MAGIC: "vxfs", /* 0xA501FCF5 local */

VZFS_SUPER_MAGIC: "vzfs", /* 0x565A4653 local */

XENFS_SUPER_MAGIC: "xenfs", /* 0xABBA1974 local */

XENIX_SUPER_MAGIC: "xenix", /* 0x012FF7B4 local */

XFS_SUPER_MAGIC: "xfs", /* 0x local */

_XIAFS_SUPER_MAGIC: "xia", /* 0x012FD16D local */

ZFS_SUPER_MAGIC: "zfs", /* 0x2FC12FC1 local */

}

var localMap = map[int64]bool{

AFS_SUPER_MAGIC: true,

BTRFS_SUPER_MAGIC: true,

EXT_SUPER_MAGIC: true,

EXT2_OLD_SUPER_MAGIC: true,

EXT2_SUPER_MAGIC: true,

FAT_SUPER_MAGIC: true,

HPFS_SUPER_MAGIC: true,

MSDOS_SUPER_MAGIC: true,

NTFS_SB_MAGIC: true,

REISERFS_SUPER_MAGIC: true,

UDF_SUPER_MAGIC: true,

XFS_SUPER_MAGIC: true,

ZFS_SUPER_MAGIC: true,

}

var networkMap = map[int64]bool{

CIFS_MAGIC_NUMBER: true,

NFS_SUPER_MAGIC: true,

SMB_SUPER_MAGIC: true,

SMB2_MAGIC_NUMBER: true,

}

var specialMap = map[int64]bool{

AUTOFS_SUPER_MAGIC: true,

BINFMTFS_MAGIC: true,

BPF_FS_MAGIC: true,

CGROUP_SUPER_MAGIC: true,

CGROUP2_SUPER_MAGIC: true,

CONFIGFS_MAGIC: true,

DEBUGFS_MAGIC: true,

DEVPTS_SUPER_MAGIC: true,

EFIVARFS_MAGIC: true,

HUGETLBFS_MAGIC: true,

MQUEUE_MAGIC: true,

PROC_SUPER_MAGIC: true,

PSTOREFS_MAGIC: true,

SECURITYFS_SUPER_MAGIC: true,

SYSFS_MAGIC: true,

TMPFS_MAGIC: true,

TRACEFS_MAGIC: true,

}

func isLocalFs(m Mount) bool {

return localMap[int64(m.Stat().Type)]

}

func isFuseFs(m Mount) bool {

return m.Stat().Type == FUSEBLK_SUPER_MAGIC ||

m.Stat().Type == FUSE_SUPER_MAGIC

}

func isNetworkFs(m Mount) bool {

return networkMap[int64(m.Stat().Type)]

}

func isSpecialFs(m Mount) bool {

if m.Device == "nsfs" {

return true

}

return specialMap[int64(m.Stat().Type)]

}

func isHiddenFs(m Mount) bool {

switch m.Device {

case "shm":

return true

case "overlay":

return true

}

return m.Fstype == "autofs"

}

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2025年filesystem的作用linux,filesystems_linux.go

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