logical_disk: add bitlocker status sub-collector (#2077)

internal/headers/propsys/propsys.go

@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// Copyright The Prometheus 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.
+
+//go:build windows
+
+package propsys
+
+import (
+	"fmt"
+	"unsafe"
+
+	"github.com/go-ole/go-ole"
+	"golang.org/x/sys/windows"
+)
+
+//nolint:gochecknoglobals
+var (
+	modPropsys                   = windows.NewLazySystemDLL("propsys.dll")
+	procPSGetPropertyKeyFromName = modPropsys.NewProc("PSGetPropertyKeyFromName")
+)
+
+type PROPERTYKEY struct {
+	Fmtid ole.GUID
+	Pid   uint32
+}
+
+func PSGetPropertyKeyFromName(name string, key *PROPERTYKEY) error {
+	namePtr, err := windows.UTF16PtrFromString(name)
+	if err != nil {
+		return fmt.Errorf("failed to convert name to UTF16: %w", err)
+	}
+
+	hr, _, err := procPSGetPropertyKeyFromName.Call(
+		uintptr(unsafe.Pointer(namePtr)),
+		uintptr(unsafe.Pointer(key)),
+	)
+
+	if hr != 0 {
+		return fmt.Errorf("PSGetPropertyKeyFromName failed: %w", err)
+	}
+
+	return nil
+}