109 lines
3.1 KiB
Go
Vendored
109 lines
3.1 KiB
Go
Vendored
// Copyright 2012 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build windows
|
|
|
|
package svc
|
|
|
|
import (
|
|
"path/filepath"
|
|
"strings"
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/windows"
|
|
)
|
|
|
|
func allocSid(subAuth0 uint32) (*windows.SID, error) {
|
|
var sid *windows.SID
|
|
err := windows.AllocateAndInitializeSid(&windows.SECURITY_NT_AUTHORITY,
|
|
1, subAuth0, 0, 0, 0, 0, 0, 0, 0, &sid)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return sid, nil
|
|
}
|
|
|
|
// IsAnInteractiveSession determines if calling process is running interactively.
|
|
// It queries the process token for membership in the Interactive group.
|
|
// http://stackoverflow.com/questions/2668851/how-do-i-detect-that-my-application-is-running-as-service-or-in-an-interactive-s
|
|
//
|
|
// Deprecated: Use IsWindowsService instead.
|
|
func IsAnInteractiveSession() (bool, error) {
|
|
interSid, err := allocSid(windows.SECURITY_INTERACTIVE_RID)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer windows.FreeSid(interSid)
|
|
|
|
serviceSid, err := allocSid(windows.SECURITY_SERVICE_RID)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer windows.FreeSid(serviceSid)
|
|
|
|
t, err := windows.OpenCurrentProcessToken()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer t.Close()
|
|
|
|
gs, err := t.GetTokenGroups()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
for _, g := range gs.AllGroups() {
|
|
if windows.EqualSid(g.Sid, interSid) {
|
|
return true, nil
|
|
}
|
|
if windows.EqualSid(g.Sid, serviceSid) {
|
|
return false, nil
|
|
}
|
|
}
|
|
return false, nil
|
|
}
|
|
|
|
// IsWindowsService reports whether the process is currently executing
|
|
// as a Windows service.
|
|
func IsWindowsService() (bool, error) {
|
|
// The below technique looks a bit hairy, but it's actually
|
|
// exactly what the .NET framework does for the similarly named function:
|
|
// https://github.com/dotnet/extensions/blob/f4066026ca06984b07e90e61a6390ac38152ba93/src/Hosting/WindowsServices/src/WindowsServiceHelpers.cs#L26-L31
|
|
// Specifically, it looks up whether the parent process has session ID zero
|
|
// and is called "services".
|
|
|
|
var pbi windows.PROCESS_BASIC_INFORMATION
|
|
pbiLen := uint32(unsafe.Sizeof(pbi))
|
|
err := windows.NtQueryInformationProcess(windows.CurrentProcess(), windows.ProcessBasicInformation, unsafe.Pointer(&pbi), pbiLen, &pbiLen)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
var psid uint32
|
|
err = windows.ProcessIdToSessionId(uint32(pbi.InheritedFromUniqueProcessId), &psid)
|
|
if err != nil || psid != 0 {
|
|
return false, nil
|
|
}
|
|
pproc, err := windows.OpenProcess(windows.PROCESS_QUERY_LIMITED_INFORMATION, false, uint32(pbi.InheritedFromUniqueProcessId))
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer windows.CloseHandle(pproc)
|
|
var exeNameBuf [261]uint16
|
|
exeNameLen := uint32(len(exeNameBuf) - 1)
|
|
err = windows.QueryFullProcessImageName(pproc, 0, &exeNameBuf[0], &exeNameLen)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
exeName := windows.UTF16ToString(exeNameBuf[:exeNameLen])
|
|
if !strings.EqualFold(filepath.Base(exeName), "services.exe") {
|
|
return false, nil
|
|
}
|
|
system32, err := windows.GetSystemDirectory()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
targetExeName := filepath.Join(system32, "services.exe")
|
|
return strings.EqualFold(exeName, targetExeName), nil
|
|
}
|