forked from TrueCloudLab/restic
62 lines
1.5 KiB
Go
62 lines
1.5 KiB
Go
// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build windows
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package svc
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import (
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"unsafe"
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"golang.org/x/sys/windows"
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)
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func allocSid(subAuth0 uint32) (*windows.SID, error) {
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var sid *windows.SID
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err := windows.AllocateAndInitializeSid(&windows.SECURITY_NT_AUTHORITY,
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1, subAuth0, 0, 0, 0, 0, 0, 0, 0, &sid)
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if err != nil {
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return nil, err
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}
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return sid, nil
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}
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// IsAnInteractiveSession determines if calling process is running interactively.
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// It queries the process token for membership in the Interactive group.
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// http://stackoverflow.com/questions/2668851/how-do-i-detect-that-my-application-is-running-as-service-or-in-an-interactive-s
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func IsAnInteractiveSession() (bool, error) {
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interSid, err := allocSid(windows.SECURITY_INTERACTIVE_RID)
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if err != nil {
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return false, err
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}
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defer windows.FreeSid(interSid)
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serviceSid, err := allocSid(windows.SECURITY_SERVICE_RID)
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if err != nil {
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return false, err
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}
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defer windows.FreeSid(serviceSid)
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t, err := windows.OpenCurrentProcessToken()
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if err != nil {
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return false, err
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}
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defer t.Close()
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gs, err := t.GetTokenGroups()
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if err != nil {
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return false, err
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}
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p := unsafe.Pointer(&gs.Groups[0])
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groups := (*[2 << 20]windows.SIDAndAttributes)(p)[:gs.GroupCount]
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for _, g := range groups {
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if windows.EqualSid(g.Sid, interSid) {
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return true, nil
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}
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if windows.EqualSid(g.Sid, serviceSid) {
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return false, nil
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}
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}
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return false, nil
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}
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