5110db5087
Users must not be allowed to step outside the volume with subPath. Therefore the final subPath directory must be "locked" somehow and checked if it's inside volume. On Windows, we lock the directories. On Linux, we bind-mount the final subPath into /var/lib/kubelet/pods/<uid>/volume-subpaths/<container name>/<subPathName>, it can't be changed to symlink user once it's bind-mounted.
101 lines
2.3 KiB
Go
101 lines
2.3 KiB
Go
// +build !linux
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/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package mount
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import (
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"errors"
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"os"
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)
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type NsenterMounter struct{}
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func NewNsenterMounter() *NsenterMounter {
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return &NsenterMounter{}
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}
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var _ = Interface(&NsenterMounter{})
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func (*NsenterMounter) Mount(source string, target string, fstype string, options []string) error {
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return nil
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}
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func (*NsenterMounter) Unmount(target string) error {
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return nil
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}
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func (*NsenterMounter) List() ([]MountPoint, error) {
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return []MountPoint{}, nil
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}
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func (m *NsenterMounter) IsNotMountPoint(dir string) (bool, error) {
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return IsNotMountPoint(m, dir)
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}
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func (*NsenterMounter) IsMountPointMatch(mp MountPoint, dir string) bool {
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return (mp.Path == dir)
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}
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func (*NsenterMounter) IsLikelyNotMountPoint(file string) (bool, error) {
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return true, nil
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}
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func (*NsenterMounter) DeviceOpened(pathname string) (bool, error) {
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return false, nil
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}
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func (*NsenterMounter) PathIsDevice(pathname string) (bool, error) {
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return true, nil
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}
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func (*NsenterMounter) GetDeviceNameFromMount(mountPath, pluginDir string) (string, error) {
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return "", nil
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}
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func (*NsenterMounter) MakeRShared(path string) error {
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return nil
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}
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func (*NsenterMounter) GetFileType(_ string) (FileType, error) {
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return FileType("fake"), errors.New("not implemented")
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}
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func (*NsenterMounter) MakeDir(pathname string) error {
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return nil
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}
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func (*NsenterMounter) MakeFile(pathname string) error {
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return nil
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}
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func (*NsenterMounter) ExistsPath(pathname string) bool {
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return true
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}
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func (*NsenterMounter) SafeMakeDir(pathname string, base string, perm os.FileMode) error {
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return nil
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}
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func (*NsenterMounter) PrepareSafeSubpath(subPath Subpath) (newHostPath string, cleanupAction func(), err error) {
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return subPath.Path, nil, nil
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}
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func (*NsenterMounter) CleanSubPaths(podDir string, volumeName string) error {
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return nil
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}
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