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
70
71
72
73
74
75
76
77
|
// Copyright 2015 Canonical Ltd.
// Copyright 2015 Cloudbase Solutions SRL
// Licensed under the LGPLv3, see LICENCE file for details.
package series
import (
"os"
"strings"
"github.com/juju/errors"
"golang.org/x/sys/windows/registry"
)
var (
// currentVersionKey is defined as a variable instead of a constant
// to allow overwriting during testing
currentVersionKey = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion"
// isNanoKey determines the registry key that can be queried to determine whether
// a machine is a nano machine
isNanoKey = "Software\\Microsoft\\Windows NT\\CurrentVersion\\Server\\ServerLevels"
)
func getVersionFromRegistry() (string, error) {
k, err := registry.OpenKey(registry.LOCAL_MACHINE, currentVersionKey, registry.QUERY_VALUE)
if err != nil {
return "", errors.Trace(err)
}
defer k.Close()
s, _, err := k.GetStringValue("ProductName")
if err != nil {
return "", errors.Trace(err)
}
return s, nil
}
func readSeries() (string, error) {
ver, err := getVersionFromRegistry()
if err != nil {
return "unknown", errors.Trace(err)
}
var lookAt = windowsVersions
isNano, err := isWindowsNano()
if err != nil && os.IsNotExist(err) {
return "unknown", errors.Trace(err)
}
if isNano {
lookAt = windowsNanoVersions
}
for _, value := range windowsVersionMatchOrder {
if strings.HasPrefix(ver, value) {
if val, ok := lookAt[value]; ok {
return val, nil
}
}
}
return "unknown", errors.Errorf("unknown series %q", ver)
}
func isWindowsNano() (bool, error) {
k, err := registry.OpenKey(registry.LOCAL_MACHINE, isNanoKey, registry.QUERY_VALUE)
if err != nil {
return false, errors.Trace(err)
}
defer k.Close()
s, _, err := k.GetIntegerValue("NanoServer")
if err != nil {
return false, errors.Trace(err)
}
return s == 1, nil
}
|
