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81 lines
1.9 KiB
81 lines
1.9 KiB
4 months ago
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// Copyright 2020 Google LLC
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//
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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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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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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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package mount
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import (
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"bufio"
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"io"
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"os"
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"strings"
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"syscall"
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)
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type systemMounter struct {
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}
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func NewSystemMounter() *systemMounter {
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var f systemMounter
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return &f
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}
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func (f *systemMounter) Mount(source string, target string, fstype string, flags uintptr, data string) error {
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return syscall.Mount(source, target, fstype, flags, data)
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}
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func (f *systemMounter) Unmount(target string, flags int) error {
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return syscall.Unmount(target, flags)
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}
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func (f *systemMounter) List() ([]string, error) {
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mountsFile, err := os.Open("/proc/mounts")
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if err != nil {
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return nil, err
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}
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defer mountsFile.Close()
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mounts, err := f.parseMounts(mountsFile)
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if err != nil {
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return nil, err
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}
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var mountList []string
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for _, mount := range mounts {
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mountList = append(mountList, mount.Path)
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}
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return mountList, err
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}
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type Mount struct {
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Device string
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Path string
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Type string
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Opts string
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}
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func (f *systemMounter) parseMounts(mountSource io.Reader) ([]Mount, error) {
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var mounts []Mount
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scanner := bufio.NewScanner(mountSource)
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for scanner.Scan() {
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line := scanner.Text()
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fields := strings.Fields(line)
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mount := Mount{
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Device: fields[0],
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Path: fields[1],
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Type: fields[2],
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Opts: fields[3],
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}
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mounts = append(mounts, mount)
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}
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return mounts, scanner.Err()
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}
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