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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// Copyright 2023 Google LLC
//
// 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.
// Package linuxtsm defines a configfsi.Client for Linux OS operations on configfs.
package linuxtsm
import (
"fmt"
"os"
"path"
"github.com/google/go-configfs-tsm/configfs/configfsi"
)
// client provides configfsi.Client for /sys/kernel/config/tsm file operations in Linux.
type client struct{}
// MkdirTemp creates a new temporary directory in the directory dir and returns the pathname
// of the new directory. Pattern semantics follow os.MkdirTemp.
func (*client) MkdirTemp(dir, pattern string) (string, error) {
return os.MkdirTemp(dir, pattern)
}
// ReadFile reads the named file and returns the contents.
func (*client) ReadFile(name string) ([]byte, error) {
return os.ReadFile(name)
}
// WriteFile writes data to the named file, creating it if necessary. The permissions
// are implementation-defined.
func (*client) WriteFile(name string, contents []byte) error {
return os.WriteFile(name, contents, 0220)
}
// RemoveAll removes path and any children it contains.
func (*client) RemoveAll(path string) error {
return os.Remove(path)
}
// ReadDir reads the directory named by dirname and returns a list of directory
// entries sorted by filename.
func (*client) ReadDir(dirname string) ([]os.DirEntry, error) {
return os.ReadDir(dirname)
}
// MakeClient returns a "real" client for using configfs for TSM use.
func MakeClient() (configfsi.Client, error) {
// Linux client expects just the "report" subsystem for now.
checkPath := path.Join(configfsi.TsmPrefix, "report")
info, err := os.Stat(checkPath)
if err != nil {
return nil, err
}
if !info.IsDir() {
return nil, fmt.Errorf("expected %s to be a directory", checkPath)
}
return &client{}, nil
}
|
