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vendor: fix docker/docker vendoring (update to 9f28837c1d93

Browse Source 
commit c41b006be1 updated the version of
docker/docker in go.mod, but possibly overlooked that there was still a
replace rule present. As a result the version was not actually updated.

This patch removes the replace rule, updating docker/docker to 9f28837c1d93

full diff: 4634ce647c...9f28837c1d

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn
2020-10-31 13:07:17 +01:00
parent d2bf42f8b4
commit fa51b90094
76 changed files with 2175 additions and 1883 deletions
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vendor/github.com/moby/sys/mount/LICENSE generated vendored Normal file
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@ -0,0 +1,202 @@
Apache License
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137
vendor/github.com/moby/sys/mount/flags.go generated vendored Normal file
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package mount
import (
"fmt"
"strings"
)
var flags = map[string]struct {
clear bool
flag int
}{
"defaults": {false, 0},
"ro": {false, RDONLY},
"rw": {true, RDONLY},
"suid": {true, NOSUID},
"nosuid": {false, NOSUID},
"dev": {true, NODEV},
"nodev": {false, NODEV},
"exec": {true, NOEXEC},
"noexec": {false, NOEXEC},
"sync": {false, SYNCHRONOUS},
"async": {true, SYNCHRONOUS},
"dirsync": {false, DIRSYNC},
"remount": {false, REMOUNT},
"mand": {false, MANDLOCK},
"nomand": {true, MANDLOCK},
"atime": {true, NOATIME},
"noatime": {false, NOATIME},
"diratime": {true, NODIRATIME},
"nodiratime": {false, NODIRATIME},
"bind": {false, BIND},
"rbind": {false, RBIND},
"unbindable": {false, UNBINDABLE},
"runbindable": {false, RUNBINDABLE},
"private": {false, PRIVATE},
"rprivate": {false, RPRIVATE},
"shared": {false, SHARED},
"rshared": {false, RSHARED},
"slave": {false, SLAVE},
"rslave": {false, RSLAVE},
"relatime": {false, RELATIME},
"norelatime": {true, RELATIME},
"strictatime": {false, STRICTATIME},
"nostrictatime": {true, STRICTATIME},
}
var validFlags = map[string]bool{
"": true,
"size": true,
"mode": true,
"uid": true,
"gid": true,
"nr_inodes": true,
"nr_blocks": true,
"mpol": true,
}
var propagationFlags = map[string]bool{
"bind": true,
"rbind": true,
"unbindable": true,
"runbindable": true,
"private": true,
"rprivate": true,
"shared": true,
"rshared": true,
"slave": true,
"rslave": true,
}
// MergeTmpfsOptions merge mount options to make sure there is no duplicate.
func MergeTmpfsOptions(options []string) ([]string, error) {
// We use collisions maps to remove duplicates.
// For flag, the key is the flag value (the key for propagation flag is -1)
// For data=value, the key is the data
flagCollisions := map[int]bool{}
dataCollisions := map[string]bool{}
var newOptions []string
// We process in reverse order
for i := len(options) - 1; i >= 0; i-- {
option := options[i]
if option == "defaults" {
continue
}
if f, ok := flags[option]; ok && f.flag != 0 {
// There is only one propagation mode
key := f.flag
if propagationFlags[option] {
key = -1
}
// Check to see if there is collision for flag
if !flagCollisions[key] {
// We prepend the option and add to collision map
newOptions = append([]string{option}, newOptions...)
flagCollisions[key] = true
}
continue
}
opt := strings.SplitN(option, "=", 2)
if len(opt) != 2 || !validFlags[opt[0]] {
return nil, fmt.Errorf("Invalid tmpfs option %q", opt)
}
if !dataCollisions[opt[0]] {
// We prepend the option and add to collision map
newOptions = append([]string{option}, newOptions...)
dataCollisions[opt[0]] = true
}
}
return newOptions, nil
}
// Parse fstab type mount options into mount() flags
// and device specific data
func parseOptions(options string) (int, string) {
var (
flag int
data []string
)
for _, o := range strings.Split(options, ",") {
// If the option does not exist in the flags table or the flag
// is not supported on the platform,
// then it is a data value for a specific fs type
if f, exists := flags[o]; exists && f.flag != 0 {
if f.clear {
flag &= ^f.flag
} else {
flag |= f.flag
}
} else {
data = append(data, o)
}
}
return flag, strings.Join(data, ",")
}

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vendor/github.com/moby/sys/mount/flags_freebsd.go generated vendored Normal file
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// +build freebsd,cgo
package mount
/*
#include <sys/mount.h>
*/
import "C"
const (
// RDONLY will mount the filesystem as read-only.
RDONLY = C.MNT_RDONLY
// NOSUID will not allow set-user-identifier or set-group-identifier bits to
// take effect.
NOSUID = C.MNT_NOSUID
// NOEXEC will not allow execution of any binaries on the mounted file system.
NOEXEC = C.MNT_NOEXEC
// SYNCHRONOUS will allow any I/O to the file system to be done synchronously.
SYNCHRONOUS = C.MNT_SYNCHRONOUS
// NOATIME will not update the file access time when reading from a file.
NOATIME = C.MNT_NOATIME
)
// These flags are unsupported.
const (
BIND = 0
DIRSYNC = 0
MANDLOCK = 0
NODEV = 0
NODIRATIME = 0
UNBINDABLE = 0
RUNBINDABLE = 0
PRIVATE = 0
RPRIVATE = 0
SHARED = 0
RSHARED = 0
SLAVE = 0
RSLAVE = 0
RBIND = 0
RELATIME = 0
REMOUNT = 0
STRICTATIME = 0
mntDetach = 0
)

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package mount
import (
"golang.org/x/sys/unix"
)
const (
// RDONLY will mount the file system read-only.
RDONLY = unix.MS_RDONLY
// NOSUID will not allow set-user-identifier or set-group-identifier bits to
// take effect.
NOSUID = unix.MS_NOSUID
// NODEV will not interpret character or block special devices on the file
// system.
NODEV = unix.MS_NODEV
// NOEXEC will not allow execution of any binaries on the mounted file system.
NOEXEC = unix.MS_NOEXEC
// SYNCHRONOUS will allow I/O to the file system to be done synchronously.
SYNCHRONOUS = unix.MS_SYNCHRONOUS
// DIRSYNC will force all directory updates within the file system to be done
// synchronously. This affects the following system calls: create, link,
// unlink, symlink, mkdir, rmdir, mknod and rename.
DIRSYNC = unix.MS_DIRSYNC
// REMOUNT will attempt to remount an already-mounted file system. This is
// commonly used to change the mount flags for a file system, especially to
// make a readonly file system writeable. It does not change device or mount
// point.
REMOUNT = unix.MS_REMOUNT
// MANDLOCK will force mandatory locks on a filesystem.
MANDLOCK = unix.MS_MANDLOCK
// NOATIME will not update the file access time when reading from a file.
NOATIME = unix.MS_NOATIME
// NODIRATIME will not update the directory access time.
NODIRATIME = unix.MS_NODIRATIME
// BIND remounts a subtree somewhere else.
BIND = unix.MS_BIND
// RBIND remounts a subtree and all possible submounts somewhere else.
RBIND = unix.MS_BIND | unix.MS_REC
// UNBINDABLE creates a mount which cannot be cloned through a bind operation.
UNBINDABLE = unix.MS_UNBINDABLE
// RUNBINDABLE marks the entire mount tree as UNBINDABLE.
RUNBINDABLE = unix.MS_UNBINDABLE | unix.MS_REC
// PRIVATE creates a mount which carries no propagation abilities.
PRIVATE = unix.MS_PRIVATE
// RPRIVATE marks the entire mount tree as PRIVATE.
RPRIVATE = unix.MS_PRIVATE | unix.MS_REC
// SLAVE creates a mount which receives propagation from its master, but not
// vice versa.
SLAVE = unix.MS_SLAVE
// RSLAVE marks the entire mount tree as SLAVE.
RSLAVE = unix.MS_SLAVE | unix.MS_REC
// SHARED creates a mount which provides the ability to create mirrors of
// that mount such that mounts and unmounts within any of the mirrors
// propagate to the other mirrors.
SHARED = unix.MS_SHARED
// RSHARED marks the entire mount tree as SHARED.
RSHARED = unix.MS_SHARED | unix.MS_REC
// RELATIME updates inode access times relative to modify or change time.
RELATIME = unix.MS_RELATIME
// STRICTATIME allows to explicitly request full atime updates. This makes
// it possible for the kernel to default to relatime or noatime but still
// allow userspace to override it.
STRICTATIME = unix.MS_STRICTATIME
mntDetach = unix.MNT_DETACH
)

30
vendor/github.com/moby/sys/mount/flags_unsupported.go generated vendored Normal file
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// +build !linux,!freebsd freebsd,!cgo
package mount
// These flags are unsupported.
const (
BIND = 0
DIRSYNC = 0
MANDLOCK = 0
NOATIME = 0
NODEV = 0
NODIRATIME = 0
NOEXEC = 0
NOSUID = 0
UNBINDABLE = 0
RUNBINDABLE = 0
PRIVATE = 0
RPRIVATE = 0
SHARED = 0
RSHARED = 0
SLAVE = 0
RSLAVE = 0
RBIND = 0
RELATIME = 0
REMOUNT = 0
STRICTATIME = 0
SYNCHRONOUS = 0
RDONLY = 0
mntDetach = 0
)

8
vendor/github.com/moby/sys/mount/go.mod generated vendored Normal file
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module github.com/moby/sys/mount
go 1.14
require (
github.com/moby/sys/mountinfo v0.1.0
golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae
)

4
vendor/github.com/moby/sys/mount/go.sum generated vendored Normal file
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github.com/moby/sys/mountinfo v0.1.0 h1:r8vMRbMAFEAfiNptYVokP+nfxPJzvRuia5e2vzXtENo=
github.com/moby/sys/mountinfo v0.1.0/go.mod h1:w2t2Avltqx8vE7gX5l+QiBKxODu2TX0+Syr3h52Tw4o=
golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae h1:/WDfKMnPU+m5M4xB+6x4kaepxRw6jWvR5iDRdvjHgy8=
golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

98
vendor/github.com/moby/sys/mount/mount.go generated vendored Normal file
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// +build go1.13
package mount
import (
"fmt"
"sort"
"strconv"
"github.com/moby/sys/mountinfo"
)
// mountError records an error from mount or unmount operation
type mountError struct {
op string
source, target string
flags uintptr
data string
err error
}
func (e *mountError) Error() string {
out := e.op + " "
if e.source != "" {
out += e.source + ":" + e.target
} else {
out += e.target
}
if e.flags != uintptr(0) {
out += ", flags: 0x" + strconv.FormatUint(uint64(e.flags), 16)
}
if e.data != "" {
out += ", data: " + e.data
}
out += ": " + e.err.Error()
return out
}
// Cause returns the underlying cause of the error.
// This is a convention used in github.com/pkg/errors
func (e *mountError) Cause() error {
return e.err
}
// Unwrap returns the underlying error.
// This is a convention used in golang 1.13+
func (e *mountError) Unwrap() error {
return e.err
}
// Mount will mount filesystem according to the specified configuration.
// Options must be specified like the mount or fstab unix commands:
// "opt1=val1,opt2=val2". See flags.go for supported option flags.
func Mount(device, target, mType, options string) error {
flag, data := parseOptions(options)
return mount(device, target, mType, uintptr(flag), data)
}
// Unmount lazily unmounts a filesystem on supported platforms, otherwise
// does a normal unmount.
func Unmount(target string) error {
return unmount(target, mntDetach)
}
// RecursiveUnmount unmounts the target and all mounts underneath, starting with
// the deepsest mount first.
func RecursiveUnmount(target string) error {
mounts, err := mountinfo.GetMounts(mountinfo.PrefixFilter(target))
if err != nil {
return err
}
// Make the deepest mount be first
sort.Slice(mounts, func(i, j int) bool {
return len(mounts[i].Mountpoint) > len(mounts[j].Mountpoint)
})
var suberr error
for i, m := range mounts {
err = unmount(m.Mountpoint, mntDetach)
if err != nil {
if i == len(mounts)-1 { // last mount
return fmt.Errorf("%w (possible cause: %s)", err, suberr)
}
// This is a submount, we can ignore the error for now,
// the final unmount will fail if this is a real problem.
// With that in mind, the _first_ failed unmount error
// might be the real error cause, so let's keep it.
if suberr == nil {
suberr = err
}
}
}
return nil
}

59
vendor/github.com/moby/sys/mount/mounter_freebsd.go generated vendored Normal file
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package mount
/*
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/_iovec.h>
#include <sys/mount.h>
#include <sys/param.h>
*/
import "C"
import (
"strings"
"syscall"
"unsafe"
)
func allocateIOVecs(options []string) []C.struct_iovec {
out := make([]C.struct_iovec, len(options))
for i, option := range options {
out[i].iov_base = unsafe.Pointer(C.CString(option))
out[i].iov_len = C.size_t(len(option) + 1)
}
return out
}
func mount(device, target, mType string, flag uintptr, data string) error {
isNullFS := false
xs := strings.Split(data, ",")
for _, x := range xs {
if x == "bind" {
isNullFS = true
}
}
options := []string{"fspath", target}
if isNullFS {
options = append(options, "fstype", "nullfs", "target", device)
} else {
options = append(options, "fstype", mType, "from", device)
}
rawOptions := allocateIOVecs(options)
for _, rawOption := range rawOptions {
defer C.free(rawOption.iov_base)
}
if errno := C.nmount(&rawOptions[0], C.uint(len(options)), C.int(flag)); errno != 0 {
return &mountError{
op: "mount",
source: device,
target: target,
flags: flag,
err: syscall.Errno(errno),
}
}
return nil
}

73
vendor/github.com/moby/sys/mount/mounter_linux.go generated vendored Normal file
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package mount
import (
"golang.org/x/sys/unix"
)
const (
// ptypes is the set propagation types.
ptypes = unix.MS_SHARED | unix.MS_PRIVATE | unix.MS_SLAVE | unix.MS_UNBINDABLE
// pflags is the full set valid flags for a change propagation call.
pflags = ptypes | unix.MS_REC | unix.MS_SILENT
// broflags is the combination of bind and read only
broflags = unix.MS_BIND | unix.MS_RDONLY
)
// isremount returns true if either device name or flags identify a remount request, false otherwise.
func isremount(device string, flags uintptr) bool {
switch {
// We treat device "" and "none" as a remount request to provide compatibility with
// requests that don't explicitly set MS_REMOUNT such as those manipulating bind mounts.
case flags&unix.MS_REMOUNT != 0, device == "", device == "none":
return true
default:
return false
}
}
func mount(device, target, mType string, flags uintptr, data string) error {
oflags := flags &^ ptypes
if !isremount(device, flags) || data != "" {
// Initial call applying all non-propagation flags for mount
// or remount with changed data
if err := unix.Mount(device, target, mType, oflags, data); err != nil {
return &mountError{
op: "mount",
source: device,
target: target,
flags: oflags,
data: data,
err: err,
}
}
}
if flags&ptypes != 0 {
// Change the propagation type.
if err := unix.Mount("", target, "", flags&pflags, ""); err != nil {
return &mountError{
op: "remount",
target: target,
flags: flags & pflags,
err: err,
}
}
}
if oflags&broflags == broflags {
// Remount the bind to apply read only.
if err := unix.Mount("", target, "", oflags|unix.MS_REMOUNT, ""); err != nil {
return &mountError{
op: "remount-ro",
target: target,
flags: oflags | unix.MS_REMOUNT,
err: err,
}
}
}
return nil
}

7
vendor/github.com/moby/sys/mount/mounter_unsupported.go generated vendored Normal file
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// +build !linux,!freebsd freebsd,!cgo
package mount
func mount(device, target, mType string, flag uintptr, data string) error {
panic("Not implemented")
}

73
vendor/github.com/moby/sys/mount/sharedsubtree_linux.go generated vendored Normal file
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package mount
import "github.com/moby/sys/mountinfo"
// MakeShared ensures a mounted filesystem has the SHARED mount option enabled.
// See the supported options in flags.go for further reference.
func MakeShared(mountPoint string) error {
return ensureMountedAs(mountPoint, SHARED)
}
// MakeRShared ensures a mounted filesystem has the RSHARED mount option enabled.
// See the supported options in flags.go for further reference.
func MakeRShared(mountPoint string) error {
return ensureMountedAs(mountPoint, RSHARED)
}
// MakePrivate ensures a mounted filesystem has the PRIVATE mount option enabled.
// See the supported options in flags.go for further reference.
func MakePrivate(mountPoint string) error {
return ensureMountedAs(mountPoint, PRIVATE)
}
// MakeRPrivate ensures a mounted filesystem has the RPRIVATE mount option
// enabled. See the supported options in flags.go for further reference.
func MakeRPrivate(mountPoint string) error {
return ensureMountedAs(mountPoint, RPRIVATE)
}
// MakeSlave ensures a mounted filesystem has the SLAVE mount option enabled.
// See the supported options in flags.go for further reference.
func MakeSlave(mountPoint string) error {
return ensureMountedAs(mountPoint, SLAVE)
}
// MakeRSlave ensures a mounted filesystem has the RSLAVE mount option enabled.
// See the supported options in flags.go for further reference.
func MakeRSlave(mountPoint string) error {
return ensureMountedAs(mountPoint, RSLAVE)
}
// MakeUnbindable ensures a mounted filesystem has the UNBINDABLE mount option
// enabled. See the supported options in flags.go for further reference.
func MakeUnbindable(mountPoint string) error {
return ensureMountedAs(mountPoint, UNBINDABLE)
}
// MakeRUnbindable ensures a mounted filesystem has the RUNBINDABLE mount
// option enabled. See the supported options in flags.go for further reference.
func MakeRUnbindable(mountPoint string) error {
return ensureMountedAs(mountPoint, RUNBINDABLE)
}
// MakeMount ensures that the file or directory given is a mount point,
// bind mounting it to itself it case it is not.
func MakeMount(mnt string) error {
mounted, err := mountinfo.Mounted(mnt)
if err != nil {
return err
}
if mounted {
return nil
}
return mount(mnt, mnt, "none", uintptr(BIND), "")
}
func ensureMountedAs(mnt string, flags int) error {
if err := MakeMount(mnt); err != nil {
return err
}
return mount("", mnt, "none", uintptr(flags), "")
}

22
vendor/github.com/moby/sys/mount/unmount_unix.go generated vendored Normal file
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// +build !windows
package mount
import "golang.org/x/sys/unix"
func unmount(target string, flags int) error {
err := unix.Unmount(target, flags)
if err == nil || err == unix.EINVAL {
// Ignore "not mounted" error here. Note the same error
// can be returned if flags are invalid, so this code
// assumes that the flags value is always correct.
return nil
}
return &mountError{
op: "umount",
target: target,
flags: uintptr(flags),
err: err,
}
}

7
vendor/github.com/moby/sys/mount/unmount_unsupported.go generated vendored Normal file
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// +build windows
package mount
func unmount(target string, flag int) error {
panic("Not implemented")
}

202
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@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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3
vendor/github.com/moby/sys/mountinfo/go.mod generated vendored Normal file
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module github.com/moby/sys/mountinfo
go 1.14

67
vendor/github.com/moby/sys/mountinfo/mountinfo.go generated vendored Normal file
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package mountinfo
import "io"
// GetMounts retrieves a list of mounts for the current running process,
// with an optional filter applied (use nil for no filter).
func GetMounts(f FilterFunc) ([]*Info, error) {
return parseMountTable(f)
}
// GetMountsFromReader retrieves a list of mounts from the
// reader provided, with an optional filter applied (use nil
// for no filter). This can be useful in tests or benchmarks
// that provide a fake mountinfo data.
func GetMountsFromReader(reader io.Reader, f FilterFunc) ([]*Info, error) {
return parseInfoFile(reader, f)
}
// Mounted determines if a specified mountpoint has been mounted.
// On Linux it looks at /proc/self/mountinfo.
func Mounted(mountpoint string) (bool, error) {
entries, err := GetMounts(SingleEntryFilter(mountpoint))
if err != nil {
return false, err
}
return len(entries) > 0, nil
}
// Info reveals information about a particular mounted filesystem. This
// struct is populated from the content in the /proc/<pid>/mountinfo file.
type Info struct {
// ID is a unique identifier of the mount (may be reused after umount).
ID int
// Parent indicates the ID of the mount parent (or of self for the top of the
// mount tree).
Parent int
// Major indicates one half of the device ID which identifies the device class.
Major int
// Minor indicates one half of the device ID which identifies a specific
// instance of device.
Minor int
// Root of the mount within the filesystem.
Root string
// Mountpoint indicates the mount point relative to the process's root.
Mountpoint string
// Opts represents mount-specific options.
Opts string
// Optional represents optional fields.
Optional string
// Fstype indicates the type of filesystem, such as EXT3.
Fstype string
// Source indicates filesystem specific information or "none".
Source string
// VfsOpts represents per super block options.
VfsOpts string
}

58
vendor/github.com/moby/sys/mountinfo/mountinfo_filters.go generated vendored Normal file
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package mountinfo
import "strings"
// FilterFunc is a type defining a callback function for GetMount(),
// used to filter out mountinfo entries we're not interested in,
// and/or stop further processing if we found what we wanted.
//
// It takes a pointer to the Info struct (not fully populated,
// currently only Mountpoint, Fstype, Source, and (on Linux)
// VfsOpts are filled in), and returns two booleans:
//
// - skip: true if the entry should be skipped
// - stop: true if parsing should be stopped after the entry
type FilterFunc func(*Info) (skip, stop bool)
// PrefixFilter discards all entries whose mount points
// do not start with a specific prefix
func PrefixFilter(prefix string) FilterFunc {
return func(m *Info) (bool, bool) {
skip := !strings.HasPrefix(m.Mountpoint, prefix)
return skip, false
}
}
// SingleEntryFilter looks for a specific entry
func SingleEntryFilter(mp string) FilterFunc {
return func(m *Info) (bool, bool) {
if m.Mountpoint == mp {
return false, true // don't skip, stop now
}
return true, false // skip, keep going
}
}
// ParentsFilter returns all entries whose mount points
// can be parents of a path specified, discarding others.
//
// For example, given `/var/lib/docker/something`, entries
// like `/var/lib/docker`, `/var` and `/` are returned.
func ParentsFilter(path string) FilterFunc {
return func(m *Info) (bool, bool) {
skip := !strings.HasPrefix(path, m.Mountpoint)
return skip, false
}
}
// FstypeFilter returns all entries that match provided fstype(s).
func FstypeFilter(fstype ...string) FilterFunc {
return func(m *Info) (bool, bool) {
for _, t := range fstype {
if m.Fstype == t {
return false, false // don't skeep, keep going
}
}
return true, false // skip, keep going
}
}

53
vendor/github.com/moby/sys/mountinfo/mountinfo_freebsd.go generated vendored Normal file
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package mountinfo
/*
#include <sys/param.h>
#include <sys/ucred.h>
#include <sys/mount.h>
*/
import "C"
import (
"fmt"
"reflect"
"unsafe"
)
// parseMountTable returns information about mounted filesystems
func parseMountTable(filter FilterFunc) ([]*Info, error) {
var rawEntries *C.struct_statfs
count := int(C.getmntinfo(&rawEntries, C.MNT_WAIT))
if count == 0 {
return nil, fmt.Errorf("Failed to call getmntinfo")
}
var entries []C.struct_statfs
header := (*reflect.SliceHeader)(unsafe.Pointer(&entries))
header.Cap = count
header.Len = count
header.Data = uintptr(unsafe.Pointer(rawEntries))
var out []*Info
for _, entry := range entries {
var mountinfo Info
var skip, stop bool
mountinfo.Mountpoint = C.GoString(&entry.f_mntonname[0])
mountinfo.Fstype = C.GoString(&entry.f_fstypename[0])
mountinfo.Source = C.GoString(&entry.f_mntfromname[0])
if filter != nil {
// filter out entries we're not interested in
skip, stop = filter(&mountinfo)
if skip {
continue
}
}
out = append(out, &mountinfo)
if stop {
break
}
}
return out, nil
}

152
vendor/github.com/moby/sys/mountinfo/mountinfo_linux.go generated vendored Normal file
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// +build go1.13
package mountinfo
import (
"bufio"
"fmt"
"io"
"os"
"strconv"
"strings"
)
func parseInfoFile(r io.Reader, filter FilterFunc) ([]*Info, error) {
s := bufio.NewScanner(r)
out := []*Info{}
var err error
for s.Scan() {
if err = s.Err(); err != nil {
return nil, err
}
/*
See http://man7.org/linux/man-pages/man5/proc.5.html
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)
(1) mount ID: unique identifier of the mount (may be reused after umount)
(2) parent ID: ID of parent (or of self for the top of the mount tree)
(3) major:minor: value of st_dev for files on filesystem
(4) root: root of the mount within the filesystem
(5) mount point: mount point relative to the process's root
(6) mount options: per mount options
(7) optional fields: zero or more fields of the form "tag[:value]"
(8) separator: marks the end of the optional fields
(9) filesystem type: name of filesystem of the form "type[.subtype]"
(10) mount source: filesystem specific information or "none"
(11) super options: per super block options
In other words, we have:
* 6 mandatory fields (1)..(6)
* 0 or more optional fields (7)
* a separator field (8)
* 3 mandatory fields (9)..(11)
*/
text := s.Text()
fields := strings.Split(text, " ")
numFields := len(fields)
if numFields < 10 {
// should be at least 10 fields
return nil, fmt.Errorf("Parsing '%s' failed: not enough fields (%d)", text, numFields)
}
// separator field
sepIdx := numFields - 4
// In Linux <= 3.9 mounting a cifs with spaces in a share
// name (like "//srv/My Docs") _may_ end up having a space
// in the last field of mountinfo (like "unc=//serv/My Docs").
// Since kernel 3.10-rc1, cifs option "unc=" is ignored,
// so spaces should not appear.
//
// Check for a separator, and work around the spaces bug
for fields[sepIdx] != "-" {
sepIdx--
if sepIdx == 5 {
return nil, fmt.Errorf("Parsing '%s' failed: missing - separator", text)
}
}
p := &Info{}
// Fill in the fields that a filter might check
p.Mountpoint, err = strconv.Unquote(`"` + fields[4] + `"`)
if err != nil {
return nil, fmt.Errorf("Parsing '%s' failed: unable to unquote mount point field: %w", fields[4], err)
}
p.Fstype = fields[sepIdx+1]
p.Source = fields[sepIdx+2]
p.VfsOpts = fields[sepIdx+3]
// Run a filter soon so we can skip parsing/adding entries
// the caller is not interested in
var skip, stop bool
if filter != nil {
skip, stop = filter(p)
if skip {
continue
}
}
// Fill in the rest of the fields
// ignore any numbers parsing errors, as there should not be any
p.ID, _ = strconv.Atoi(fields[0])
p.Parent, _ = strconv.Atoi(fields[1])
mm := strings.Split(fields[2], ":")
if len(mm) != 2 {
return nil, fmt.Errorf("Parsing '%s' failed: unexpected minor:major pair %s", text, mm)
}
p.Major, _ = strconv.Atoi(mm[0])
p.Minor, _ = strconv.Atoi(mm[1])
p.Root, err = strconv.Unquote(`"` + fields[3] + `"`)
if err != nil {
return nil, fmt.Errorf("Parsing '%s' failed: unable to unquote root field: %w", fields[3], err)
}
p.Opts = fields[5]
// zero or more optional fields
switch {
case sepIdx == 6:
// zero, do nothing
case sepIdx == 7:
p.Optional = fields[6]
default:
p.Optional = strings.Join(fields[6:sepIdx-1], " ")
}
out = append(out, p)
if stop {
break
}
}
return out, nil
}
// Parse /proc/self/mountinfo because comparing Dev and ino does not work from
// bind mounts
func parseMountTable(filter FilterFunc) ([]*Info, error) {
f, err := os.Open("/proc/self/mountinfo")
if err != nil {
return nil, err
}
defer f.Close()
return parseInfoFile(f, filter)
}
// PidMountInfo collects the mounts for a specific process ID. If the process
// ID is unknown, it is better to use `GetMounts` which will inspect
// "/proc/self/mountinfo" instead.
func PidMountInfo(pid int) ([]*Info, error) {
f, err := os.Open(fmt.Sprintf("/proc/%d/mountinfo", pid))
if err != nil {
return nil, err
}
defer f.Close()
return parseInfoFile(f, nil)
}

17
vendor/github.com/moby/sys/mountinfo/mountinfo_unsupported.go generated vendored Normal file
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// +build !windows,!linux,!freebsd freebsd,!cgo
package mountinfo
import (
"fmt"
"io"
"runtime"
)
func parseMountTable(_ FilterFunc) ([]*Info, error) {
return nil, fmt.Errorf("mount.parseMountTable is not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
func parseInfoFile(_ io.Reader, f FilterFunc) ([]*Info, error) {
return parseMountTable(f)
}

12
vendor/github.com/moby/sys/mountinfo/mountinfo_windows.go generated vendored Normal file
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package mountinfo
import "io"
func parseMountTable(_ FilterFunc) ([]*Info, error) {
// Do NOT return an error!
return nil, nil
}
func parseInfoFile(_ io.Reader, f FilterFunc) ([]*Info, error) {
return parseMountTable(f)
}