mirror of
https://github.com/kubenetworks/kubevpn.git
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feat: upgrade syncthing version
This commit is contained in:
561
vendor/github.com/shirou/gopsutil/v4/disk/disk_linux.go
generated
vendored
Normal file
561
vendor/github.com/shirou/gopsutil/v4/disk/disk_linux.go
generated
vendored
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@@ -0,0 +1,561 @@
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build linux
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package disk
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import (
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"bufio"
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"context"
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"errors"
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"fmt"
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"os"
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"path"
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"path/filepath"
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"strconv"
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"strings"
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"golang.org/x/sys/unix"
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"github.com/shirou/gopsutil/v4/internal/common"
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)
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const (
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sectorSize = 512
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)
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const (
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// man statfs
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ADFS_SUPER_MAGIC = 0xadf5
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AFFS_SUPER_MAGIC = 0xADFF
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BDEVFS_MAGIC = 0x62646576
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BEFS_SUPER_MAGIC = 0x42465331
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BFS_MAGIC = 0x1BADFACE
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BINFMTFS_MAGIC = 0x42494e4d
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BTRFS_SUPER_MAGIC = 0x9123683E
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CGROUP_SUPER_MAGIC = 0x27e0eb
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CIFS_MAGIC_NUMBER = 0xFF534D42
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CODA_SUPER_MAGIC = 0x73757245
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COH_SUPER_MAGIC = 0x012FF7B7
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CRAMFS_MAGIC = 0x28cd3d45
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DEBUGFS_MAGIC = 0x64626720
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DEVFS_SUPER_MAGIC = 0x1373
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DEVPTS_SUPER_MAGIC = 0x1cd1
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EFIVARFS_MAGIC = 0xde5e81e4
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EFS_SUPER_MAGIC = 0x00414A53
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EXT_SUPER_MAGIC = 0x137D
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EXT2_OLD_SUPER_MAGIC = 0xEF51
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EXT2_SUPER_MAGIC = 0xEF53
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EXT3_SUPER_MAGIC = 0xEF53
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EXT4_SUPER_MAGIC = 0xEF53
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FUSE_SUPER_MAGIC = 0x65735546
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FUTEXFS_SUPER_MAGIC = 0xBAD1DEA
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HFS_SUPER_MAGIC = 0x4244
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HFSPLUS_SUPER_MAGIC = 0x482b
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HOSTFS_SUPER_MAGIC = 0x00c0ffee
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HPFS_SUPER_MAGIC = 0xF995E849
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HUGETLBFS_MAGIC = 0x958458f6
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ISOFS_SUPER_MAGIC = 0x9660
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JFFS2_SUPER_MAGIC = 0x72b6
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JFS_SUPER_MAGIC = 0x3153464a
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MINIX_SUPER_MAGIC = 0x137F /* orig. minix */
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MINIX_SUPER_MAGIC2 = 0x138F /* 30 char minix */
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MINIX2_SUPER_MAGIC = 0x2468 /* minix V2 */
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MINIX2_SUPER_MAGIC2 = 0x2478 /* minix V2, 30 char names */
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MINIX3_SUPER_MAGIC = 0x4d5a /* minix V3 fs, 60 char names */
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MQUEUE_MAGIC = 0x19800202
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MSDOS_SUPER_MAGIC = 0x4d44
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NCP_SUPER_MAGIC = 0x564c
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NFS_SUPER_MAGIC = 0x6969
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NILFS_SUPER_MAGIC = 0x3434
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NTFS_SB_MAGIC = 0x5346544e
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OCFS2_SUPER_MAGIC = 0x7461636f
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OPENPROM_SUPER_MAGIC = 0x9fa1
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PIPEFS_MAGIC = 0x50495045
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PROC_SUPER_MAGIC = 0x9fa0
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PSTOREFS_MAGIC = 0x6165676C
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QNX4_SUPER_MAGIC = 0x002f
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QNX6_SUPER_MAGIC = 0x68191122
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RAMFS_MAGIC = 0x858458f6
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REISERFS_SUPER_MAGIC = 0x52654973
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ROMFS_MAGIC = 0x7275
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SELINUX_MAGIC = 0xf97cff8c
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SMACK_MAGIC = 0x43415d53
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SMB_SUPER_MAGIC = 0x517B
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SOCKFS_MAGIC = 0x534F434B
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SQUASHFS_MAGIC = 0x73717368
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SYSFS_MAGIC = 0x62656572
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SYSV2_SUPER_MAGIC = 0x012FF7B6
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SYSV4_SUPER_MAGIC = 0x012FF7B5
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TMPFS_MAGIC = 0x01021994
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UDF_SUPER_MAGIC = 0x15013346
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UFS_MAGIC = 0x00011954
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USBDEVICE_SUPER_MAGIC = 0x9fa2
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V9FS_MAGIC = 0x01021997
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VXFS_SUPER_MAGIC = 0xa501FCF5
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XENFS_SUPER_MAGIC = 0xabba1974
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XENIX_SUPER_MAGIC = 0x012FF7B4
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XFS_SUPER_MAGIC = 0x58465342
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_XIAFS_SUPER_MAGIC = 0x012FD16D
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AFS_SUPER_MAGIC = 0x5346414F
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AUFS_SUPER_MAGIC = 0x61756673
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ANON_INODE_FS_SUPER_MAGIC = 0x09041934
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BPF_FS_MAGIC = 0xCAFE4A11
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CEPH_SUPER_MAGIC = 0x00C36400
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CGROUP2_SUPER_MAGIC = 0x63677270
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CONFIGFS_MAGIC = 0x62656570
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ECRYPTFS_SUPER_MAGIC = 0xF15F
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F2FS_SUPER_MAGIC = 0xF2F52010
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FAT_SUPER_MAGIC = 0x4006
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FHGFS_SUPER_MAGIC = 0x19830326
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FUSEBLK_SUPER_MAGIC = 0x65735546
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FUSECTL_SUPER_MAGIC = 0x65735543
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GFS_SUPER_MAGIC = 0x1161970
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GPFS_SUPER_MAGIC = 0x47504653
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MTD_INODE_FS_SUPER_MAGIC = 0x11307854
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INOTIFYFS_SUPER_MAGIC = 0x2BAD1DEA
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ISOFS_R_WIN_SUPER_MAGIC = 0x4004
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ISOFS_WIN_SUPER_MAGIC = 0x4000
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JFFS_SUPER_MAGIC = 0x07C0
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KAFS_SUPER_MAGIC = 0x6B414653
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LUSTRE_SUPER_MAGIC = 0x0BD00BD0
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NFSD_SUPER_MAGIC = 0x6E667364
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NSFS_MAGIC = 0x6E736673
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PANFS_SUPER_MAGIC = 0xAAD7AAEA
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RPC_PIPEFS_SUPER_MAGIC = 0x67596969
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SECURITYFS_SUPER_MAGIC = 0x73636673
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TRACEFS_MAGIC = 0x74726163
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UFS_BYTESWAPPED_SUPER_MAGIC = 0x54190100
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VMHGFS_SUPER_MAGIC = 0xBACBACBC
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VZFS_SUPER_MAGIC = 0x565A4653
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ZFS_SUPER_MAGIC = 0x2FC12FC1
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)
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// coreutils/src/stat.c
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var fsTypeMap = map[int64]string{
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ADFS_SUPER_MAGIC: "adfs", /* 0xADF5 local */
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AFFS_SUPER_MAGIC: "affs", /* 0xADFF local */
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AFS_SUPER_MAGIC: "afs", /* 0x5346414F remote */
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ANON_INODE_FS_SUPER_MAGIC: "anon-inode FS", /* 0x09041934 local */
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AUFS_SUPER_MAGIC: "aufs", /* 0x61756673 remote */
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// AUTOFS_SUPER_MAGIC: "autofs", /* 0x0187 local */
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BEFS_SUPER_MAGIC: "befs", /* 0x42465331 local */
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BDEVFS_MAGIC: "bdevfs", /* 0x62646576 local */
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BFS_MAGIC: "bfs", /* 0x1BADFACE local */
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BINFMTFS_MAGIC: "binfmt_misc", /* 0x42494E4D local */
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BPF_FS_MAGIC: "bpf", /* 0xCAFE4A11 local */
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BTRFS_SUPER_MAGIC: "btrfs", /* 0x9123683E local */
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CEPH_SUPER_MAGIC: "ceph", /* 0x00C36400 remote */
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CGROUP_SUPER_MAGIC: "cgroupfs", /* 0x0027E0EB local */
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CGROUP2_SUPER_MAGIC: "cgroup2fs", /* 0x63677270 local */
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CIFS_MAGIC_NUMBER: "cifs", /* 0xFF534D42 remote */
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CODA_SUPER_MAGIC: "coda", /* 0x73757245 remote */
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COH_SUPER_MAGIC: "coh", /* 0x012FF7B7 local */
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CONFIGFS_MAGIC: "configfs", /* 0x62656570 local */
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CRAMFS_MAGIC: "cramfs", /* 0x28CD3D45 local */
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DEBUGFS_MAGIC: "debugfs", /* 0x64626720 local */
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DEVFS_SUPER_MAGIC: "devfs", /* 0x1373 local */
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DEVPTS_SUPER_MAGIC: "devpts", /* 0x1CD1 local */
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ECRYPTFS_SUPER_MAGIC: "ecryptfs", /* 0xF15F local */
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EFIVARFS_MAGIC: "efivarfs", /* 0xDE5E81E4 local */
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EFS_SUPER_MAGIC: "efs", /* 0x00414A53 local */
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EXT_SUPER_MAGIC: "ext", /* 0x137D local */
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EXT2_SUPER_MAGIC: "ext2/ext3", /* 0xEF53 local */
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EXT2_OLD_SUPER_MAGIC: "ext2", /* 0xEF51 local */
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F2FS_SUPER_MAGIC: "f2fs", /* 0xF2F52010 local */
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FAT_SUPER_MAGIC: "fat", /* 0x4006 local */
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FHGFS_SUPER_MAGIC: "fhgfs", /* 0x19830326 remote */
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FUSEBLK_SUPER_MAGIC: "fuseblk", /* 0x65735546 remote */
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FUSECTL_SUPER_MAGIC: "fusectl", /* 0x65735543 remote */
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FUTEXFS_SUPER_MAGIC: "futexfs", /* 0x0BAD1DEA local */
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GFS_SUPER_MAGIC: "gfs/gfs2", /* 0x1161970 remote */
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GPFS_SUPER_MAGIC: "gpfs", /* 0x47504653 remote */
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HFS_SUPER_MAGIC: "hfs", /* 0x4244 local */
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HFSPLUS_SUPER_MAGIC: "hfsplus", /* 0x482b local */
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HPFS_SUPER_MAGIC: "hpfs", /* 0xF995E849 local */
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HUGETLBFS_MAGIC: "hugetlbfs", /* 0x958458F6 local */
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MTD_INODE_FS_SUPER_MAGIC: "inodefs", /* 0x11307854 local */
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INOTIFYFS_SUPER_MAGIC: "inotifyfs", /* 0x2BAD1DEA local */
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ISOFS_SUPER_MAGIC: "isofs", /* 0x9660 local */
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ISOFS_R_WIN_SUPER_MAGIC: "isofs", /* 0x4004 local */
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ISOFS_WIN_SUPER_MAGIC: "isofs", /* 0x4000 local */
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JFFS_SUPER_MAGIC: "jffs", /* 0x07C0 local */
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JFFS2_SUPER_MAGIC: "jffs2", /* 0x72B6 local */
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JFS_SUPER_MAGIC: "jfs", /* 0x3153464A local */
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KAFS_SUPER_MAGIC: "k-afs", /* 0x6B414653 remote */
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LUSTRE_SUPER_MAGIC: "lustre", /* 0x0BD00BD0 remote */
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MINIX_SUPER_MAGIC: "minix", /* 0x137F local */
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MINIX_SUPER_MAGIC2: "minix (30 char.)", /* 0x138F local */
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MINIX2_SUPER_MAGIC: "minix v2", /* 0x2468 local */
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MINIX2_SUPER_MAGIC2: "minix v2 (30 char.)", /* 0x2478 local */
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MINIX3_SUPER_MAGIC: "minix3", /* 0x4D5A local */
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MQUEUE_MAGIC: "mqueue", /* 0x19800202 local */
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MSDOS_SUPER_MAGIC: "msdos", /* 0x4D44 local */
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NCP_SUPER_MAGIC: "novell", /* 0x564C remote */
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NFS_SUPER_MAGIC: "nfs", /* 0x6969 remote */
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NFSD_SUPER_MAGIC: "nfsd", /* 0x6E667364 remote */
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NILFS_SUPER_MAGIC: "nilfs", /* 0x3434 local */
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NSFS_MAGIC: "nsfs", /* 0x6E736673 local */
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NTFS_SB_MAGIC: "ntfs", /* 0x5346544E local */
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OPENPROM_SUPER_MAGIC: "openprom", /* 0x9FA1 local */
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OCFS2_SUPER_MAGIC: "ocfs2", /* 0x7461636f remote */
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PANFS_SUPER_MAGIC: "panfs", /* 0xAAD7AAEA remote */
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PIPEFS_MAGIC: "pipefs", /* 0x50495045 remote */
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PROC_SUPER_MAGIC: "proc", /* 0x9FA0 local */
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PSTOREFS_MAGIC: "pstorefs", /* 0x6165676C local */
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QNX4_SUPER_MAGIC: "qnx4", /* 0x002F local */
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QNX6_SUPER_MAGIC: "qnx6", /* 0x68191122 local */
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RAMFS_MAGIC: "ramfs", /* 0x858458F6 local */
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REISERFS_SUPER_MAGIC: "reiserfs", /* 0x52654973 local */
|
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ROMFS_MAGIC: "romfs", /* 0x7275 local */
|
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RPC_PIPEFS_SUPER_MAGIC: "rpc_pipefs", /* 0x67596969 local */
|
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SECURITYFS_SUPER_MAGIC: "securityfs", /* 0x73636673 local */
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SELINUX_MAGIC: "selinux", /* 0xF97CFF8C local */
|
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SMB_SUPER_MAGIC: "smb", /* 0x517B remote */
|
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SOCKFS_MAGIC: "sockfs", /* 0x534F434B local */
|
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SQUASHFS_MAGIC: "squashfs", /* 0x73717368 local */
|
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SYSFS_MAGIC: "sysfs", /* 0x62656572 local */
|
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SYSV2_SUPER_MAGIC: "sysv2", /* 0x012FF7B6 local */
|
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SYSV4_SUPER_MAGIC: "sysv4", /* 0x012FF7B5 local */
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TMPFS_MAGIC: "tmpfs", /* 0x01021994 local */
|
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TRACEFS_MAGIC: "tracefs", /* 0x74726163 local */
|
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UDF_SUPER_MAGIC: "udf", /* 0x15013346 local */
|
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UFS_MAGIC: "ufs", /* 0x00011954 local */
|
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UFS_BYTESWAPPED_SUPER_MAGIC: "ufs", /* 0x54190100 local */
|
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USBDEVICE_SUPER_MAGIC: "usbdevfs", /* 0x9FA2 local */
|
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V9FS_MAGIC: "v9fs", /* 0x01021997 local */
|
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VMHGFS_SUPER_MAGIC: "vmhgfs", /* 0xBACBACBC remote */
|
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VXFS_SUPER_MAGIC: "vxfs", /* 0xA501FCF5 local */
|
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VZFS_SUPER_MAGIC: "vzfs", /* 0x565A4653 local */
|
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XENFS_SUPER_MAGIC: "xenfs", /* 0xABBA1974 local */
|
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XENIX_SUPER_MAGIC: "xenix", /* 0x012FF7B4 local */
|
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XFS_SUPER_MAGIC: "xfs", /* 0x58465342 local */
|
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_XIAFS_SUPER_MAGIC: "xia", /* 0x012FD16D local */
|
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ZFS_SUPER_MAGIC: "zfs", /* 0x2FC12FC1 local */
|
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}
|
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|
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// readMountFile reads mountinfo or mounts file under the specified root path
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// (eg, /proc/1, /proc/self, etc)
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func readMountFile(root string) (lines []string, useMounts bool, filename string, err error) {
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filename = path.Join(root, "mountinfo")
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lines, err = common.ReadLines(filename)
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if err != nil {
|
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var pathErr *os.PathError
|
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if !errors.As(err, &pathErr) {
|
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return
|
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}
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// if kernel does not support 1/mountinfo, fallback to 1/mounts (<2.6.26)
|
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useMounts = true
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filename = path.Join(root, "mounts")
|
||||
lines, err = common.ReadLines(filename)
|
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if err != nil {
|
||||
return
|
||||
}
|
||||
return
|
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}
|
||||
return
|
||||
}
|
||||
|
||||
func PartitionsWithContext(ctx context.Context, all bool) ([]PartitionStat, error) {
|
||||
// by default, try "/proc/1/..." first
|
||||
root := common.HostProcWithContext(ctx, path.Join("1"))
|
||||
|
||||
// force preference for dirname of HOST_PROC_MOUNTINFO, if set #1271
|
||||
hpmPath := common.HostProcMountInfoWithContext(ctx)
|
||||
if hpmPath != "" {
|
||||
root = filepath.Dir(hpmPath)
|
||||
}
|
||||
|
||||
lines, useMounts, filename, err := readMountFile(root)
|
||||
if err != nil {
|
||||
if hpmPath != "" { // don't fallback with HOST_PROC_MOUNTINFO
|
||||
return nil, err
|
||||
}
|
||||
// fallback to "/proc/self/..." #1159
|
||||
lines, useMounts, filename, err = readMountFile(common.HostProcWithContext(ctx, path.Join("self")))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
|
||||
fs, err := getFileSystems(ctx)
|
||||
if err != nil && !all {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
ret := make([]PartitionStat, 0, len(lines))
|
||||
|
||||
for _, line := range lines {
|
||||
var d PartitionStat
|
||||
if useMounts {
|
||||
fields := strings.Fields(line)
|
||||
|
||||
d = PartitionStat{
|
||||
Device: fields[0],
|
||||
Mountpoint: unescapeFstab(fields[1]),
|
||||
Fstype: fields[2],
|
||||
Opts: strings.Fields(fields[3]),
|
||||
}
|
||||
|
||||
if !all {
|
||||
if d.Device == "none" || !common.StringsHas(fs, d.Fstype) {
|
||||
continue
|
||||
}
|
||||
}
|
||||
} else {
|
||||
// a line of 1/mountinfo has the following structure:
|
||||
// 36 35 98:0 /mnt1 /mnt2 rw,noatime master:1 - ext3 /dev/root rw,errors=continue
|
||||
// (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)
|
||||
|
||||
// split the mountinfo line by the separator hyphen
|
||||
parts := strings.Split(line, " - ")
|
||||
if len(parts) != 2 {
|
||||
return nil, fmt.Errorf("found invalid mountinfo line in file %s: %s ", filename, line)
|
||||
}
|
||||
|
||||
fields := strings.Fields(parts[0])
|
||||
blockDeviceID := fields[2]
|
||||
mountPoint := fields[4]
|
||||
mountOpts := strings.Split(fields[5], ",")
|
||||
|
||||
if rootDir := fields[3]; rootDir != "" && rootDir != "/" {
|
||||
mountOpts = append(mountOpts, "bind")
|
||||
}
|
||||
|
||||
fields = strings.Fields(parts[1])
|
||||
fstype := fields[0]
|
||||
device := fields[1]
|
||||
|
||||
d = PartitionStat{
|
||||
Device: device,
|
||||
Mountpoint: unescapeFstab(mountPoint),
|
||||
Fstype: fstype,
|
||||
Opts: mountOpts,
|
||||
}
|
||||
|
||||
if !all {
|
||||
if d.Device == "none" || !common.StringsHas(fs, d.Fstype) {
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
if strings.HasPrefix(d.Device, "/dev/mapper/") {
|
||||
devpath, err := filepath.EvalSymlinks(common.HostDevWithContext(ctx, strings.Replace(d.Device, "/dev", "", 1)))
|
||||
if err == nil {
|
||||
d.Device = devpath
|
||||
}
|
||||
}
|
||||
|
||||
// /dev/root is not the real device name
|
||||
// so we get the real device name from its major/minor number
|
||||
if d.Device == "/dev/root" {
|
||||
devpath, err := os.Readlink(common.HostSysWithContext(ctx, "/dev/block/"+blockDeviceID))
|
||||
if err == nil {
|
||||
d.Device = strings.Replace(d.Device, "root", filepath.Base(devpath), 1)
|
||||
}
|
||||
}
|
||||
}
|
||||
ret = append(ret, d)
|
||||
}
|
||||
|
||||
return ret, nil
|
||||
}
|
||||
|
||||
// getFileSystems returns supported filesystems from /proc/filesystems
|
||||
func getFileSystems(ctx context.Context) ([]string, error) {
|
||||
filename := common.HostProcWithContext(ctx, "filesystems")
|
||||
lines, err := common.ReadLines(filename)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
var ret []string
|
||||
for _, line := range lines {
|
||||
if !strings.HasPrefix(line, "nodev") {
|
||||
ret = append(ret, strings.TrimSpace(line))
|
||||
continue
|
||||
}
|
||||
t := strings.Split(line, "\t")
|
||||
if len(t) != 2 || t[1] != "zfs" {
|
||||
continue
|
||||
}
|
||||
ret = append(ret, strings.TrimSpace(t[1]))
|
||||
}
|
||||
|
||||
return ret, nil
|
||||
}
|
||||
|
||||
func IOCountersWithContext(ctx context.Context, names ...string) (map[string]IOCountersStat, error) {
|
||||
filename := common.HostProcWithContext(ctx, "diskstats")
|
||||
lines, err := common.ReadLines(filename)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ret := make(map[string]IOCountersStat)
|
||||
empty := IOCountersStat{}
|
||||
|
||||
// use only basename such as "/dev/sda1" to "sda1"
|
||||
for i, name := range names {
|
||||
names[i] = filepath.Base(name)
|
||||
}
|
||||
|
||||
for _, line := range lines {
|
||||
fields := strings.Fields(line)
|
||||
if len(fields) < 14 {
|
||||
// malformed line in /proc/diskstats, avoid panic by ignoring.
|
||||
continue
|
||||
}
|
||||
name := fields[2]
|
||||
|
||||
if len(names) > 0 && !common.StringsHas(names, name) {
|
||||
continue
|
||||
}
|
||||
|
||||
reads, err := strconv.ParseUint((fields[3]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
mergedReads, err := strconv.ParseUint((fields[4]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
rbytes, err := strconv.ParseUint((fields[5]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
rtime, err := strconv.ParseUint((fields[6]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
writes, err := strconv.ParseUint((fields[7]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
mergedWrites, err := strconv.ParseUint((fields[8]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
wbytes, err := strconv.ParseUint((fields[9]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
wtime, err := strconv.ParseUint((fields[10]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
iopsInProgress, err := strconv.ParseUint((fields[11]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
iotime, err := strconv.ParseUint((fields[12]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
weightedIO, err := strconv.ParseUint((fields[13]), 10, 64)
|
||||
if err != nil {
|
||||
return ret, err
|
||||
}
|
||||
d := IOCountersStat{
|
||||
ReadBytes: rbytes * sectorSize,
|
||||
WriteBytes: wbytes * sectorSize,
|
||||
ReadCount: reads,
|
||||
WriteCount: writes,
|
||||
MergedReadCount: mergedReads,
|
||||
MergedWriteCount: mergedWrites,
|
||||
ReadTime: rtime,
|
||||
WriteTime: wtime,
|
||||
IopsInProgress: iopsInProgress,
|
||||
IoTime: iotime,
|
||||
WeightedIO: weightedIO,
|
||||
}
|
||||
if d == empty {
|
||||
continue
|
||||
}
|
||||
d.Name = name
|
||||
|
||||
// Names passed in can be full paths (/dev/sda) or just device names (sda).
|
||||
// Since `name` here is already a basename, re-add the /dev path.
|
||||
// This is not ideal, but we may break the API by changing how SerialNumberWithContext
|
||||
// works.
|
||||
d.SerialNumber, _ = SerialNumberWithContext(ctx, common.HostDevWithContext(ctx, name))
|
||||
d.Label, _ = LabelWithContext(ctx, name)
|
||||
|
||||
ret[name] = d
|
||||
}
|
||||
return ret, nil
|
||||
}
|
||||
|
||||
func udevData(ctx context.Context, major uint32, minor uint32, name string) (string, error) {
|
||||
udevDataPath := common.HostRunWithContext(ctx, fmt.Sprintf("udev/data/b%d:%d", major, minor))
|
||||
if f, err := os.Open(udevDataPath); err == nil {
|
||||
defer f.Close()
|
||||
scanner := bufio.NewScanner(f)
|
||||
for scanner.Scan() {
|
||||
values := strings.SplitN(scanner.Text(), "=", 3)
|
||||
if len(values) == 2 && values[0] == name {
|
||||
return values[1], nil
|
||||
}
|
||||
}
|
||||
return "", scanner.Err()
|
||||
} else if !os.IsNotExist(err) {
|
||||
return "", err
|
||||
}
|
||||
return "", nil
|
||||
}
|
||||
|
||||
func SerialNumberWithContext(ctx context.Context, name string) (string, error) {
|
||||
var stat unix.Stat_t
|
||||
if err := unix.Stat(name, &stat); err != nil {
|
||||
return "", err
|
||||
}
|
||||
major := unix.Major(uint64(stat.Rdev))
|
||||
minor := unix.Minor(uint64(stat.Rdev))
|
||||
|
||||
sserial, _ := udevData(ctx, major, minor, "E:ID_SERIAL")
|
||||
if sserial != "" {
|
||||
return sserial, nil
|
||||
}
|
||||
|
||||
// Try to get the serial from sysfs, look at the disk device (minor 0) directly
|
||||
// because if it is a partition it is not going to contain any device information
|
||||
devicePath := common.HostSysWithContext(ctx, fmt.Sprintf("dev/block/%d:0/device", major))
|
||||
model, _ := os.ReadFile(filepath.Join(devicePath, "model"))
|
||||
serial, _ := os.ReadFile(filepath.Join(devicePath, "serial"))
|
||||
if len(model) > 0 && len(serial) > 0 {
|
||||
return fmt.Sprintf("%s_%s", string(model), string(serial)), nil
|
||||
}
|
||||
return "", nil
|
||||
}
|
||||
|
||||
func LabelWithContext(ctx context.Context, name string) (string, error) {
|
||||
// Try label based on devicemapper name
|
||||
dmname_filename := common.HostSysWithContext(ctx, fmt.Sprintf("block/%s/dm/name", name))
|
||||
// Could errors.Join errs with Go >= 1.20
|
||||
if common.PathExists(dmname_filename) {
|
||||
dmname, err := os.ReadFile(dmname_filename)
|
||||
if err == nil {
|
||||
return strings.TrimSpace(string(dmname)), nil
|
||||
}
|
||||
}
|
||||
// Try udev data
|
||||
var stat unix.Stat_t
|
||||
if err := unix.Stat(common.HostDevWithContext(ctx, name), &stat); err != nil {
|
||||
return "", err
|
||||
}
|
||||
major := unix.Major(uint64(stat.Rdev))
|
||||
minor := unix.Minor(uint64(stat.Rdev))
|
||||
|
||||
label, err := udevData(ctx, major, minor, "E:ID_FS_LABEL")
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
return label, nil
|
||||
}
|
||||
|
||||
func getFsType(stat unix.Statfs_t) string {
|
||||
t := int64(stat.Type)
|
||||
ret, ok := fsTypeMap[t]
|
||||
if !ok {
|
||||
return ""
|
||||
}
|
||||
return ret
|
||||
}
|
||||
Reference in New Issue
Block a user