1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// Copyright 2015 The appc Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build linux
package main
import (
"fmt"
"os"
)
func checkMountImpl(d string, readonly bool) error {
mountinfoPath := fmt.Sprintf("/proc/self/mountinfo")
mi, err := os.Open(mountinfoPath)
if err != nil {
return err
}
defer mi.Close()
isMounted, ro, err := parseMountinfo(mi, d)
if err != nil {
return err
}
if !isMounted {
return fmt.Errorf("%q is not a mount point", d)
}
if ro == readonly {
return nil
} else {
return fmt.Errorf("%q mounted ro=%t, want %t", d, ro, readonly)
}
}
|
