wintun: migrate to wintun.dll API

Rather than having every application using Wintun driver reinvent the
wheel, the Wintun device/adapter/interface management has been moved
from wireguard-go to wintun.dll deployed with Wintun itself.

Signed-off-by: Simon Rozman <simon@rozman.si>

tun/tun_windows.go

@@ -33,7 +33,7 @@ type rateJuggler struct {
 }
 
 type NativeTun struct {
-	wt        *wintun.Interface
+	wt        *wintun.Adapter
 	handle    windows.Handle
 	close     bool
 	events    chan Event
@@ -44,7 +44,15 @@ type NativeTun struct {
 	writeLock sync.Mutex
 }
 
-const WintunPool = wintun.Pool("WireGuard")
+var WintunPool *wintun.Pool
+
+func init() {
+	var err error
+	WintunPool, err = wintun.MakePool("WireGuard")
+	if err != nil {
+		panic(fmt.Errorf("Failed to make pool: %v", err))
+	}
+}
 
 //go:linkname procyield runtime.procyield
 func procyield(cycles uint32)
@@ -66,18 +74,18 @@ func CreateTUN(ifname string, mtu int) (Device, error) {
 //
 func CreateTUNWithRequestedGUID(ifname string, requestedGUID *windows.GUID, mtu int) (Device, error) {
 	var err error
-	var wt *wintun.Interface
+	var wt *wintun.Adapter
 
 	// Does an interface with this name already exist?
-	wt, err = WintunPool.GetInterface(ifname)
+	wt, err = WintunPool.OpenAdapter(ifname)
 	if err == nil {
 		// If so, we delete it, in case it has weird residual configuration.
-		_, err = wt.DeleteInterface()
+		_, err = wt.Delete(true)
 		if err != nil {
 			return nil, fmt.Errorf("Error deleting already existing interface: %v", err)
 		}
 	}
-	wt, _, err = WintunPool.CreateInterface(ifname, requestedGUID)
+	wt, _, err = WintunPool.CreateAdapter(ifname, requestedGUID)
 	if err != nil {
 		return nil, fmt.Errorf("Error creating interface: %v", err)
 	}
@@ -132,7 +140,7 @@ func (tun *NativeTun) Close() error {
 	tun.rings.Close()
 	var err error
 	if tun.wt != nil {
-		_, err = tun.wt.DeleteInterface()
+		_, err = tun.wt.Delete(false)
 	}
 	close(tun.events)
 	return err
@@ -254,9 +262,9 @@ func (tun *NativeTun) LUID() uint64 {
 	return tun.wt.LUID()
 }
 
-// Version returns the version of the Wintun driver and NDIS system currently loaded.
-func (tun *NativeTun) Version() (driverVersion string, ndisVersion string, err error) {
-	return tun.wt.Version()
+// RunningVersion returns the running version of the Wintun driver.
+func (tun *NativeTun) RunningVersion() (version uint32, err error) {
+	return wintun.RunningVersion()
 }
 
 func (rate *rateJuggler) update(packetLen uint64) {

tun/wintun/iphlpapi/conversion_windows.go

@@ -1,25 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package iphlpapi
-
-import "golang.org/x/sys/windows"
-
-//sys	convertInterfaceLUIDToGUID(interfaceLUID *uint64, interfaceGUID *windows.GUID) (ret error) = iphlpapi.ConvertInterfaceLuidToGuid
-//sys	convertInterfaceAliasToLUID(interfaceAlias *uint16, interfaceLUID *uint64) (ret error) = iphlpapi.ConvertInterfaceAliasToLuid
-
-func InterfaceGUIDFromAlias(alias string) (*windows.GUID, error) {
-	var luid uint64
-	var guid windows.GUID
-	err := convertInterfaceAliasToLUID(windows.StringToUTF16Ptr(alias), &luid)
-	if err != nil {
-		return nil, err
-	}
-	err = convertInterfaceLUIDToGUID(&luid, &guid)
-	if err != nil {
-		return nil, err
-	}
-	return &guid, nil
-}

tun/wintun/iphlpapi/mksyscall.go

@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package iphlpapi
-
-//go:generate go run golang.org/x/sys/windows/mkwinsyscall -output zsyscall_windows.go conversion_windows.go

tun/wintun/iphlpapi/zsyscall_windows.go

@@ -1,60 +0,0 @@
-// Code generated by 'go generate'; DO NOT EDIT.
-
-package iphlpapi
-
-import (
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-var _ unsafe.Pointer
-
-// Do the interface allocations only once for common
-// Errno values.
-const (
-	errnoERROR_IO_PENDING = 997
-)
-
-var (
-	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
-)
-
-// errnoErr returns common boxed Errno values, to prevent
-// allocations at runtime.
-func errnoErr(e syscall.Errno) error {
-	switch e {
-	case 0:
-		return nil
-	case errnoERROR_IO_PENDING:
-		return errERROR_IO_PENDING
-	}
-	// TODO: add more here, after collecting data on the common
-	// error values see on Windows. (perhaps when running
-	// all.bat?)
-	return e
-}
-
-var (
-	modiphlpapi = windows.NewLazySystemDLL("iphlpapi.dll")
-
-	procConvertInterfaceLuidToGuid  = modiphlpapi.NewProc("ConvertInterfaceLuidToGuid")
-	procConvertInterfaceAliasToLuid = modiphlpapi.NewProc("ConvertInterfaceAliasToLuid")
-)
-
-func convertInterfaceLUIDToGUID(interfaceLUID *uint64, interfaceGUID *windows.GUID) (ret error) {
-	r0, _, _ := syscall.Syscall(procConvertInterfaceLuidToGuid.Addr(), 2, uintptr(unsafe.Pointer(interfaceLUID)), uintptr(unsafe.Pointer(interfaceGUID)), 0)
-	if r0 != 0 {
-		ret = syscall.Errno(r0)
-	}
-	return
-}
-
-func convertInterfaceAliasToLUID(interfaceAlias *uint16, interfaceLUID *uint64) (ret error) {
-	r0, _, _ := syscall.Syscall(procConvertInterfaceAliasToLuid.Addr(), 2, uintptr(unsafe.Pointer(interfaceAlias)), uintptr(unsafe.Pointer(interfaceLUID)), 0)
-	if r0 != 0 {
-		ret = syscall.Errno(r0)
-	}
-	return
-}

tun/wintun/namespace_windows.go

@@ -1,101 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package wintun
-
-import (
-	"encoding/hex"
-	"errors"
-	"fmt"
-	"sync"
-	"unsafe"
-
-	"golang.org/x/crypto/blake2s"
-	"golang.org/x/sys/windows"
-	"golang.org/x/text/unicode/norm"
-
-	"golang.zx2c4.com/wireguard/tun/wintun/namespaceapi"
-)
-
-var (
-	wintunObjectSecurityAttributes *windows.SecurityAttributes
-	hasInitializedNamespace        bool
-	initializingNamespace          sync.Mutex
-)
-
-func initializeNamespace() error {
-	initializingNamespace.Lock()
-	defer initializingNamespace.Unlock()
-	if hasInitializedNamespace {
-		return nil
-	}
-	sd, err := windows.SecurityDescriptorFromString("O:SYD:P(A;;GA;;;SY)")
-	if err != nil {
-		return fmt.Errorf("SddlToSecurityDescriptor failed: %v", err)
-	}
-	wintunObjectSecurityAttributes = &windows.SecurityAttributes{
-		Length:             uint32(unsafe.Sizeof(windows.SecurityAttributes{})),
-		SecurityDescriptor: sd,
-	}
-	sid, err := windows.CreateWellKnownSid(windows.WinLocalSystemSid)
-	if err != nil {
-		return fmt.Errorf("CreateWellKnownSid(LOCAL_SYSTEM) failed: %v", err)
-	}
-
-	boundary, err := namespaceapi.CreateBoundaryDescriptor("Wintun")
-	if err != nil {
-		return fmt.Errorf("CreateBoundaryDescriptor failed: %v", err)
-	}
-	err = boundary.AddSid(sid)
-	if err != nil {
-		return fmt.Errorf("AddSIDToBoundaryDescriptor failed: %v", err)
-	}
-	for {
-		_, err = namespaceapi.CreatePrivateNamespace(wintunObjectSecurityAttributes, boundary, "Wintun")
-		if err == windows.ERROR_ALREADY_EXISTS {
-			_, err = namespaceapi.OpenPrivateNamespace(boundary, "Wintun")
-			if err == windows.ERROR_PATH_NOT_FOUND {
-				continue
-			}
-			if err != nil {
-				return fmt.Errorf("OpenPrivateNamespace failed: %v", err)
-			}
-		}
-		if err != nil {
-			return fmt.Errorf("CreatePrivateNamespace failed: %v", err)
-		}
-		break
-	}
-	hasInitializedNamespace = true
-	return nil
-}
-
-func (pool Pool) takeNameMutex() (windows.Handle, error) {
-	err := initializeNamespace()
-	if err != nil {
-		return 0, err
-	}
-
-	const mutexLabel = "WireGuard Adapter Name Mutex Stable Suffix v1 jason@zx2c4.com"
-	b2, _ := blake2s.New256(nil)
-	b2.Write([]byte(mutexLabel))
-	b2.Write(norm.NFC.Bytes([]byte(string(pool))))
-	mutexName := `Wintun\Wintun-Name-Mutex-` + hex.EncodeToString(b2.Sum(nil))
-	mutex, err := windows.CreateMutex(wintunObjectSecurityAttributes, false, windows.StringToUTF16Ptr(mutexName))
-	if err != nil {
-		err = fmt.Errorf("Error creating name mutex: %v", err)
-		return 0, err
-	}
-	event, err := windows.WaitForSingleObject(mutex, windows.INFINITE)
-	if err != nil {
-		windows.CloseHandle(mutex)
-		return 0, fmt.Errorf("Error waiting on name mutex: %v", err)
-	}
-	if event != windows.WAIT_OBJECT_0 && event != windows.WAIT_ABANDONED {
-		windows.CloseHandle(mutex)
-		return 0, errors.New("Error with event trigger of name mutex")
-	}
-	return mutex, nil
-}

tun/wintun/namespaceapi/mksyscall.go

@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package namespaceapi
-
-//go:generate go run golang.org/x/sys/windows/mkwinsyscall -output zsyscall_windows.go namespaceapi_windows.go

tun/wintun/namespaceapi/namespaceapi_windows.go

@@ -1,83 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package namespaceapi
-
-import "golang.org/x/sys/windows"
-
-//sys	createBoundaryDescriptor(name *uint16, flags uint32) (handle windows.Handle, err error) = kernel32.CreateBoundaryDescriptorW
-//sys	deleteBoundaryDescriptor(boundaryDescriptor windows.Handle) = kernel32.DeleteBoundaryDescriptor
-//sys	addSIDToBoundaryDescriptor(boundaryDescriptor *windows.Handle, requiredSid *windows.SID) (err error) = kernel32.AddSIDToBoundaryDescriptor
-//sys	createPrivateNamespace(privateNamespaceAttributes *windows.SecurityAttributes, boundaryDescriptor windows.Handle, aliasPrefix *uint16) (handle windows.Handle, err error) = kernel32.CreatePrivateNamespaceW
-//sys	openPrivateNamespace(boundaryDescriptor windows.Handle, aliasPrefix *uint16) (handle windows.Handle, err error) = kernel32.OpenPrivateNamespaceW
-//sys	closePrivateNamespace(handle windows.Handle, flags uint32) (err error) = kernel32.ClosePrivateNamespace
-
-// BoundaryDescriptor represents a boundary that defines how the objects in the namespace are to be isolated.
-type BoundaryDescriptor windows.Handle
-
-// CreateBoundaryDescriptor creates a boundary descriptor.
-func CreateBoundaryDescriptor(name string) (BoundaryDescriptor, error) {
-	name16, err := windows.UTF16PtrFromString(name)
-	if err != nil {
-		return 0, err
-	}
-	handle, err := createBoundaryDescriptor(name16, 0)
-	if err != nil {
-		return 0, err
-	}
-	return BoundaryDescriptor(handle), nil
-}
-
-// Delete deletes the specified boundary descriptor.
-func (bd BoundaryDescriptor) Delete() {
-	deleteBoundaryDescriptor(windows.Handle(bd))
-}
-
-// AddSid adds a security identifier (SID) to the specified boundary descriptor.
-func (bd *BoundaryDescriptor) AddSid(requiredSid *windows.SID) error {
-	return addSIDToBoundaryDescriptor((*windows.Handle)(bd), requiredSid)
-}
-
-// PrivateNamespace represents a private namespace.
-type PrivateNamespace windows.Handle
-
-// CreatePrivateNamespace creates a private namespace.
-func CreatePrivateNamespace(privateNamespaceAttributes *windows.SecurityAttributes, boundaryDescriptor BoundaryDescriptor, aliasPrefix string) (PrivateNamespace, error) {
-	aliasPrefix16, err := windows.UTF16PtrFromString(aliasPrefix)
-	if err != nil {
-		return 0, err
-	}
-	handle, err := createPrivateNamespace(privateNamespaceAttributes, windows.Handle(boundaryDescriptor), aliasPrefix16)
-	if err != nil {
-		return 0, err
-	}
-	return PrivateNamespace(handle), nil
-}
-
-// OpenPrivateNamespace opens a private namespace.
-func OpenPrivateNamespace(boundaryDescriptor BoundaryDescriptor, aliasPrefix string) (PrivateNamespace, error) {
-	aliasPrefix16, err := windows.UTF16PtrFromString(aliasPrefix)
-	if err != nil {
-		return 0, err
-	}
-	handle, err := openPrivateNamespace(windows.Handle(boundaryDescriptor), aliasPrefix16)
-	if err != nil {
-		return 0, err
-	}
-	return PrivateNamespace(handle), nil
-}
-
-// ClosePrivateNamespaceFlags describes flags that are used by PrivateNamespace's Close() method.
-type ClosePrivateNamespaceFlags uint32
-
-const (
-	// PrivateNamespaceFlagDestroy makes the close to destroy the namespace.
-	PrivateNamespaceFlagDestroy = ClosePrivateNamespaceFlags(0x1)
-)
-
-// Close closes an open namespace handle.
-func (pns PrivateNamespace) Close(flags ClosePrivateNamespaceFlags) error {
-	return closePrivateNamespace(windows.Handle(pns), uint32(flags))
-}

tun/wintun/namespaceapi/zsyscall_windows.go

@@ -1,116 +0,0 @@
-// Code generated by 'go generate'; DO NOT EDIT.
-
-package namespaceapi
-
-import (
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-var _ unsafe.Pointer
-
-// Do the interface allocations only once for common
-// Errno values.
-const (
-	errnoERROR_IO_PENDING = 997
-)
-
-var (
-	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
-)
-
-// errnoErr returns common boxed Errno values, to prevent
-// allocations at runtime.
-func errnoErr(e syscall.Errno) error {
-	switch e {
-	case 0:
-		return nil
-	case errnoERROR_IO_PENDING:
-		return errERROR_IO_PENDING
-	}
-	// TODO: add more here, after collecting data on the common
-	// error values see on Windows. (perhaps when running
-	// all.bat?)
-	return e
-}
-
-var (
-	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
-
-	procCreateBoundaryDescriptorW  = modkernel32.NewProc("CreateBoundaryDescriptorW")
-	procDeleteBoundaryDescriptor   = modkernel32.NewProc("DeleteBoundaryDescriptor")
-	procAddSIDToBoundaryDescriptor = modkernel32.NewProc("AddSIDToBoundaryDescriptor")
-	procCreatePrivateNamespaceW    = modkernel32.NewProc("CreatePrivateNamespaceW")
-	procOpenPrivateNamespaceW      = modkernel32.NewProc("OpenPrivateNamespaceW")
-	procClosePrivateNamespace      = modkernel32.NewProc("ClosePrivateNamespace")
-)
-
-func createBoundaryDescriptor(name *uint16, flags uint32) (handle windows.Handle, err error) {
-	r0, _, e1 := syscall.Syscall(procCreateBoundaryDescriptorW.Addr(), 2, uintptr(unsafe.Pointer(name)), uintptr(flags), 0)
-	handle = windows.Handle(r0)
-	if handle == 0 {
-		if e1 != 0 {
-			err = errnoErr(e1)
-		} else {
-			err = syscall.EINVAL
-		}
-	}
-	return
-}
-
-func deleteBoundaryDescriptor(boundaryDescriptor windows.Handle) {
-	syscall.Syscall(procDeleteBoundaryDescriptor.Addr(), 1, uintptr(boundaryDescriptor), 0, 0)
-	return
-}
-
-func addSIDToBoundaryDescriptor(boundaryDescriptor *windows.Handle, requiredSid *windows.SID) (err error) {
-	r1, _, e1 := syscall.Syscall(procAddSIDToBoundaryDescriptor.Addr(), 2, uintptr(unsafe.Pointer(boundaryDescriptor)), uintptr(unsafe.Pointer(requiredSid)), 0)
-	if r1 == 0 {
-		if e1 != 0 {
-			err = errnoErr(e1)
-		} else {
-			err = syscall.EINVAL
-		}
-	}
-	return
-}
-
-func createPrivateNamespace(privateNamespaceAttributes *windows.SecurityAttributes, boundaryDescriptor windows.Handle, aliasPrefix *uint16) (handle windows.Handle, err error) {
-	r0, _, e1 := syscall.Syscall(procCreatePrivateNamespaceW.Addr(), 3, uintptr(unsafe.Pointer(privateNamespaceAttributes)), uintptr(boundaryDescriptor), uintptr(unsafe.Pointer(aliasPrefix)))
-	handle = windows.Handle(r0)
-	if handle == 0 {
-		if e1 != 0 {
-			err = errnoErr(e1)
-		} else {
-			err = syscall.EINVAL
-		}
-	}
-	return
-}
-
-func openPrivateNamespace(boundaryDescriptor windows.Handle, aliasPrefix *uint16) (handle windows.Handle, err error) {
-	r0, _, e1 := syscall.Syscall(procOpenPrivateNamespaceW.Addr(), 2, uintptr(boundaryDescriptor), uintptr(unsafe.Pointer(aliasPrefix)), 0)
-	handle = windows.Handle(r0)
-	if handle == 0 {
-		if e1 != 0 {
-			err = errnoErr(e1)
-		} else {
-			err = syscall.EINVAL
-		}
-	}
-	return
-}
-
-func closePrivateNamespace(handle windows.Handle, flags uint32) (err error) {
-	r1, _, e1 := syscall.Syscall(procClosePrivateNamespace.Addr(), 2, uintptr(handle), uintptr(flags), 0)
-	if r1 == 0 {
-		if e1 != 0 {
-			err = errnoErr(e1)
-		} else {
-			err = syscall.EINVAL
-		}
-	}
-	return
-}

tun/wintun/nci/mksyscall.go

@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package nci
-
-//go:generate go run golang.org/x/sys/windows/mkwinsyscall -output zsyscall_windows.go nci_windows.go

tun/wintun/nci/nci_windows.go

@@ -1,28 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package nci
-
-import "golang.org/x/sys/windows"
-
-//sys	nciSetConnectionName(guid *windows.GUID, newName *uint16) (ret error) = nci.NciSetConnectionName
-//sys	nciGetConnectionName(guid *windows.GUID, destName *uint16, inDestNameBytes uint32, outDestNameBytes *uint32) (ret error) = nci.NciGetConnectionName
-
-func SetConnectionName(guid *windows.GUID, newName string) error {
-	newName16, err := windows.UTF16PtrFromString(newName)
-	if err != nil {
-		return err
-	}
-	return nciSetConnectionName(guid, newName16)
-}
-
-func ConnectionName(guid *windows.GUID) (string, error) {
-	var name [0x400]uint16
-	err := nciGetConnectionName(guid, &name[0], uint32(len(name)*2), nil)
-	if err != nil {
-		return "", err
-	}
-	return windows.UTF16ToString(name[:]), nil
-}

tun/wintun/nci/zsyscall_windows.go

@@ -1,60 +0,0 @@
-// Code generated by 'go generate'; DO NOT EDIT.
-
-package nci
-
-import (
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-var _ unsafe.Pointer
-
-// Do the interface allocations only once for common
-// Errno values.
-const (
-	errnoERROR_IO_PENDING = 997
-)
-
-var (
-	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
-)
-
-// errnoErr returns common boxed Errno values, to prevent
-// allocations at runtime.
-func errnoErr(e syscall.Errno) error {
-	switch e {
-	case 0:
-		return nil
-	case errnoERROR_IO_PENDING:
-		return errERROR_IO_PENDING
-	}
-	// TODO: add more here, after collecting data on the common
-	// error values see on Windows. (perhaps when running
-	// all.bat?)
-	return e
-}
-
-var (
-	modnci = windows.NewLazySystemDLL("nci.dll")
-
-	procNciSetConnectionName = modnci.NewProc("NciSetConnectionName")
-	procNciGetConnectionName = modnci.NewProc("NciGetConnectionName")
-)
-
-func nciSetConnectionName(guid *windows.GUID, newName *uint16) (ret error) {
-	r0, _, _ := syscall.Syscall(procNciSetConnectionName.Addr(), 2, uintptr(unsafe.Pointer(guid)), uintptr(unsafe.Pointer(newName)), 0)
-	if r0 != 0 {
-		ret = syscall.Errno(r0)
-	}
-	return
-}
-
-func nciGetConnectionName(guid *windows.GUID, destName *uint16, inDestNameBytes uint32, outDestNameBytes *uint32) (ret error) {
-	r0, _, _ := syscall.Syscall6(procNciGetConnectionName.Addr(), 4, uintptr(unsafe.Pointer(guid)), uintptr(unsafe.Pointer(destName)), uintptr(inDestNameBytes), uintptr(unsafe.Pointer(outDestNameBytes)), 0, 0)
-	if r0 != 0 {
-		ret = syscall.Errno(r0)
-	}
-	return
-}

tun/wintun/registry/mksyscall.go

@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package registry
-
-//go:generate go run golang.org/x/sys/windows/mkwinsyscall -output zregistry_windows.go registry_windows.go

tun/wintun/registry/registry_windows.go

@@ -1,272 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package registry
-
-import (
-	"errors"
-	"fmt"
-	"runtime"
-	"strings"
-	"time"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-	"golang.org/x/sys/windows/registry"
-)
-
-const (
-	// REG_NOTIFY_CHANGE_NAME notifies the caller if a subkey is added or deleted.
-	REG_NOTIFY_CHANGE_NAME uint32 = 0x00000001
-
-	// REG_NOTIFY_CHANGE_ATTRIBUTES notifies the caller of changes to the attributes of the key, such as the security descriptor information.
-	REG_NOTIFY_CHANGE_ATTRIBUTES uint32 = 0x00000002
-
-	// REG_NOTIFY_CHANGE_LAST_SET notifies the caller of changes to a value of the key. This can include adding or deleting a value, or changing an existing value.
-	REG_NOTIFY_CHANGE_LAST_SET uint32 = 0x00000004
-
-	// REG_NOTIFY_CHANGE_SECURITY notifies the caller of changes to the security descriptor of the key.
-	REG_NOTIFY_CHANGE_SECURITY uint32 = 0x00000008
-
-	// REG_NOTIFY_THREAD_AGNOSTIC indicates that the lifetime of the registration must not be tied to the lifetime of the thread issuing the RegNotifyChangeKeyValue call. Note: This flag value is only supported in Windows 8 and later.
-	REG_NOTIFY_THREAD_AGNOSTIC uint32 = 0x10000000
-)
-
-//sys	regNotifyChangeKeyValue(key windows.Handle, watchSubtree bool, notifyFilter uint32, event windows.Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue
-
-func OpenKeyWait(k registry.Key, path string, access uint32, timeout time.Duration) (registry.Key, error) {
-	runtime.LockOSThread()
-	defer runtime.UnlockOSThread()
-
-	deadline := time.Now().Add(timeout)
-	pathSpl := strings.Split(path, "\\")
-	for i := 0; ; i++ {
-		keyName := pathSpl[i]
-		isLast := i+1 == len(pathSpl)
-
-		event, err := windows.CreateEvent(nil, 0, 0, nil)
-		if err != nil {
-			return 0, fmt.Errorf("Error creating event: %v", err)
-		}
-		defer windows.CloseHandle(event)
-
-		var key registry.Key
-		for {
-			err = regNotifyChangeKeyValue(windows.Handle(k), false, REG_NOTIFY_CHANGE_NAME, windows.Handle(event), true)
-			if err != nil {
-				return 0, fmt.Errorf("Setting up change notification on registry key failed: %v", err)
-			}
-
-			var accessFlags uint32
-			if isLast {
-				accessFlags = access
-			} else {
-				accessFlags = registry.NOTIFY
-			}
-			key, err = registry.OpenKey(k, keyName, accessFlags)
-			if err == windows.ERROR_FILE_NOT_FOUND || err == windows.ERROR_PATH_NOT_FOUND {
-				timeout := time.Until(deadline) / time.Millisecond
-				if timeout < 0 {
-					timeout = 0
-				}
-				s, err := windows.WaitForSingleObject(event, uint32(timeout))
-				if err != nil {
-					return 0, fmt.Errorf("Unable to wait on registry key: %v", err)
-				}
-				if s == uint32(windows.WAIT_TIMEOUT) { // windows.WAIT_TIMEOUT status const is misclassified as error in golang.org/x/sys/windows
-					return 0, errors.New("Timeout waiting for registry key")
-				}
-			} else if err != nil {
-				return 0, fmt.Errorf("Error opening registry key %v: %v", path, err)
-			} else {
-				if isLast {
-					return key, nil
-				}
-				defer key.Close()
-				break
-			}
-		}
-
-		k = key
-	}
-}
-
-func WaitForKey(k registry.Key, path string, timeout time.Duration) error {
-	key, err := OpenKeyWait(k, path, registry.NOTIFY, timeout)
-	if err != nil {
-		return err
-	}
-	key.Close()
-	return nil
-}
-
-//
-// getValue is more or less the same as windows/registry's getValue.
-//
-func getValue(k registry.Key, name string, buf []byte) (value []byte, valueType uint32, err error) {
-	var name16 *uint16
-	name16, err = windows.UTF16PtrFromString(name)
-	if err != nil {
-		return
-	}
-	n := uint32(len(buf))
-	for {
-		err = windows.RegQueryValueEx(windows.Handle(k), name16, nil, &valueType, (*byte)(unsafe.Pointer(&buf[0])), &n)
-		if err == nil {
-			value = buf[:n]
-			return
-		}
-		if err != windows.ERROR_MORE_DATA {
-			return
-		}
-		if n <= uint32(len(buf)) {
-			return
-		}
-		buf = make([]byte, n)
-	}
-}
-
-//
-// getValueRetry function reads any value from registry. It waits for
-// the registry value to become available or returns error on timeout.
-//
-// Key must be opened with at least QUERY_VALUE|NOTIFY access.
-//
-func getValueRetry(key registry.Key, name string, buf []byte, timeout time.Duration) ([]byte, uint32, error) {
-	runtime.LockOSThread()
-	defer runtime.UnlockOSThread()
-
-	event, err := windows.CreateEvent(nil, 0, 0, nil)
-	if err != nil {
-		return nil, 0, fmt.Errorf("Error creating event: %v", err)
-	}
-	defer windows.CloseHandle(event)
-
-	deadline := time.Now().Add(timeout)
-	for {
-		err := regNotifyChangeKeyValue(windows.Handle(key), false, REG_NOTIFY_CHANGE_LAST_SET, windows.Handle(event), true)
-		if err != nil {
-			return nil, 0, fmt.Errorf("Setting up change notification on registry value failed: %v", err)
-		}
-
-		buf, valueType, err := getValue(key, name, buf)
-		if err == windows.ERROR_FILE_NOT_FOUND || err == windows.ERROR_PATH_NOT_FOUND {
-			timeout := time.Until(deadline) / time.Millisecond
-			if timeout < 0 {
-				timeout = 0
-			}
-			s, err := windows.WaitForSingleObject(event, uint32(timeout))
-			if err != nil {
-				return nil, 0, fmt.Errorf("Unable to wait on registry value: %v", err)
-			}
-			if s == uint32(windows.WAIT_TIMEOUT) { // windows.WAIT_TIMEOUT status const is misclassified as error in golang.org/x/sys/windows
-				return nil, 0, errors.New("Timeout waiting for registry value")
-			}
-		} else if err != nil {
-			return nil, 0, fmt.Errorf("Error reading registry value %v: %v", name, err)
-		} else {
-			return buf, valueType, nil
-		}
-	}
-}
-
-func toString(buf []byte, valueType uint32, err error) (string, error) {
-	if err != nil {
-		return "", err
-	}
-
-	var value string
-	switch valueType {
-	case registry.SZ, registry.EXPAND_SZ, registry.MULTI_SZ:
-		if len(buf) == 0 {
-			return "", nil
-		}
-		value = windows.UTF16PtrToString((*uint16)(unsafe.Pointer(&buf[0])))
-
-	default:
-		return "", registry.ErrUnexpectedType
-	}
-
-	if valueType != registry.EXPAND_SZ {
-		// Value does not require expansion.
-		return value, nil
-	}
-
-	valueExp, err := registry.ExpandString(value)
-	if err != nil {
-		// Expanding failed: return original sting value.
-		return value, nil
-	}
-
-	// Return expanded value.
-	return valueExp, nil
-}
-
-func toInteger(buf []byte, valueType uint32, err error) (uint64, error) {
-	if err != nil {
-		return 0, err
-	}
-
-	switch valueType {
-	case registry.DWORD:
-		if len(buf) != 4 {
-			return 0, errors.New("DWORD value is not 4 bytes long")
-		}
-		var val uint32
-		copy((*[4]byte)(unsafe.Pointer(&val))[:], buf)
-		return uint64(val), nil
-
-	case registry.QWORD:
-		if len(buf) != 8 {
-			return 0, errors.New("QWORD value is not 8 bytes long")
-		}
-		var val uint64
-		copy((*[8]byte)(unsafe.Pointer(&val))[:], buf)
-		return val, nil
-
-	default:
-		return 0, registry.ErrUnexpectedType
-	}
-}
-
-//
-// GetStringValueWait function reads a string value from registry. It waits
-// for the registry value to become available or returns error on timeout.
-//
-// Key must be opened with at least QUERY_VALUE|NOTIFY access.
-//
-// If the value type is REG_EXPAND_SZ the environment variables are expanded.
-// Should expanding fail, original string value and nil error are returned.
-//
-// If the value type is REG_MULTI_SZ only the first string is returned.
-//
-func GetStringValueWait(key registry.Key, name string, timeout time.Duration) (string, error) {
-	return toString(getValueRetry(key, name, make([]byte, 256), timeout))
-}
-
-//
-// GetStringValue function reads a string value from registry.
-//
-// Key must be opened with at least QUERY_VALUE access.
-//
-// If the value type is REG_EXPAND_SZ the environment variables are expanded.
-// Should expanding fail, original string value and nil error are returned.
-//
-// If the value type is REG_MULTI_SZ only the first string is returned.
-//
-func GetStringValue(key registry.Key, name string) (string, error) {
-	return toString(getValue(key, name, make([]byte, 256)))
-}
-
-//
-// GetIntegerValueWait function reads a DWORD32 or QWORD value from registry.
-// It waits for the registry value to become available or returns error on
-// timeout.
-//
-// Key must be opened with at least QUERY_VALUE|NOTIFY access.
-//
-func GetIntegerValueWait(key registry.Key, name string, timeout time.Duration) (uint64, error) {
-	return toInteger(getValueRetry(key, name, make([]byte, 8), timeout))
-}

tun/wintun/registry/registry_windows_test.go

@@ -1,103 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package registry
-
-import (
-	"testing"
-	"time"
-
-	"golang.org/x/sys/windows/registry"
-)
-
-const keyRoot = registry.CURRENT_USER
-const pathRoot = "Software\\WireGuardRegistryTest"
-const path = pathRoot + "\\foobar"
-const pathFake = pathRoot + "\\raboof"
-
-func Test_WaitForKey(t *testing.T) {
-	registry.DeleteKey(keyRoot, path)
-	registry.DeleteKey(keyRoot, pathRoot)
-	go func() {
-		time.Sleep(time.Second * 1)
-		key, _, err := registry.CreateKey(keyRoot, pathFake, registry.QUERY_VALUE)
-		if err != nil {
-			t.Errorf("Error creating registry key: %v", err)
-		}
-		key.Close()
-		registry.DeleteKey(keyRoot, pathFake)
-
-		key, _, err = registry.CreateKey(keyRoot, path, registry.QUERY_VALUE)
-		if err != nil {
-			t.Errorf("Error creating registry key: %v", err)
-		}
-		key.Close()
-	}()
-	err := WaitForKey(keyRoot, path, time.Second*2)
-	if err != nil {
-		t.Errorf("Error waiting for registry key: %v", err)
-	}
-	registry.DeleteKey(keyRoot, path)
-	registry.DeleteKey(keyRoot, pathRoot)
-
-	err = WaitForKey(keyRoot, path, time.Second*1)
-	if err == nil {
-		t.Error("Registry key notification expected to timeout but it succeeded.")
-	}
-}
-
-func Test_GetValueWait(t *testing.T) {
-	registry.DeleteKey(keyRoot, path)
-	registry.DeleteKey(keyRoot, pathRoot)
-	go func() {
-		time.Sleep(time.Second * 1)
-		key, _, err := registry.CreateKey(keyRoot, path, registry.SET_VALUE)
-		if err != nil {
-			t.Errorf("Error creating registry key: %v", err)
-		}
-		time.Sleep(time.Second * 1)
-		key.SetStringValue("name1", "eulav")
-		key.SetExpandStringValue("name2", "value")
-		time.Sleep(time.Second * 1)
-		key.SetDWordValue("name3", ^uint32(123))
-		key.SetDWordValue("name4", 123)
-		key.Close()
-	}()
-
-	key, err := OpenKeyWait(keyRoot, path, registry.QUERY_VALUE|registry.NOTIFY, time.Second*2)
-	if err != nil {
-		t.Errorf("Error waiting for registry key: %v", err)
-	}
-
-	valueStr, err := GetStringValueWait(key, "name2", time.Second*2)
-	if err != nil {
-		t.Errorf("Error waiting for registry value: %v", err)
-	}
-	if valueStr != "value" {
-		t.Errorf("Wrong value read: %v", valueStr)
-	}
-
-	_, err = GetStringValueWait(key, "nonexisting", time.Second*1)
-	if err == nil {
-		t.Error("Registry value notification expected to timeout but it succeeded.")
-	}
-
-	valueInt, err := GetIntegerValueWait(key, "name4", time.Second*2)
-	if err != nil {
-		t.Errorf("Error waiting for registry value: %v", err)
-	}
-	if valueInt != 123 {
-		t.Errorf("Wrong value read: %v", valueInt)
-	}
-
-	_, err = GetIntegerValueWait(key, "nonexisting", time.Second*1)
-	if err == nil {
-		t.Error("Registry value notification expected to timeout but it succeeded.")
-	}
-
-	key.Close()
-	registry.DeleteKey(keyRoot, path)
-	registry.DeleteKey(keyRoot, pathRoot)
-}

tun/wintun/registry/zregistry_windows.go

@@ -1,63 +0,0 @@
-// Code generated by 'go generate'; DO NOT EDIT.
-
-package registry
-
-import (
-	"syscall"
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-var _ unsafe.Pointer
-
-// Do the interface allocations only once for common
-// Errno values.
-const (
-	errnoERROR_IO_PENDING = 997
-)
-
-var (
-	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
-)
-
-// errnoErr returns common boxed Errno values, to prevent
-// allocations at runtime.
-func errnoErr(e syscall.Errno) error {
-	switch e {
-	case 0:
-		return nil
-	case errnoERROR_IO_PENDING:
-		return errERROR_IO_PENDING
-	}
-	// TODO: add more here, after collecting data on the common
-	// error values see on Windows. (perhaps when running
-	// all.bat?)
-	return e
-}
-
-var (
-	modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
-
-	procRegNotifyChangeKeyValue = modadvapi32.NewProc("RegNotifyChangeKeyValue")
-)
-
-func regNotifyChangeKeyValue(key windows.Handle, watchSubtree bool, notifyFilter uint32, event windows.Handle, asynchronous bool) (regerrno error) {
-	var _p0 uint32
-	if watchSubtree {
-		_p0 = 1
-	} else {
-		_p0 = 0
-	}
-	var _p1 uint32
-	if asynchronous {
-		_p1 = 1
-	} else {
-		_p1 = 0
-	}
-	r0, _, _ := syscall.Syscall6(procRegNotifyChangeKeyValue.Addr(), 5, uintptr(key), uintptr(_p0), uintptr(notifyFilter), uintptr(event), uintptr(_p1), 0)
-	if r0 != 0 {
-		regerrno = syscall.Errno(r0)
-	}
-	return
-}

tun/wintun/ring_windows.go

@@ -103,8 +103,8 @@ func (descriptor *RingDescriptor) Close() {
 	}
 }
 
-func (wintun *Interface) Register(descriptor *RingDescriptor) (windows.Handle, error) {
-	handle, err := wintun.handle()
+func (wintun *Adapter) Register(descriptor *RingDescriptor) (windows.Handle, error) {
+	handle, err := wintun.OpenAdapterDeviceObject()
 	if err != nil {
 		return 0, err
 	}

tun/wintun/setupapi/mksyscall.go

@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package setupapi
-
-//go:generate go run golang.org/x/sys/windows/mkwinsyscall -output zsetupapi_windows.go setupapi_windows.go

tun/wintun/setupapi/setupapi_windows_test.go

@@ -1,488 +0,0 @@
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package setupapi
-
-import (
-	"runtime"
-	"strings"
-	"testing"
-
-	"golang.org/x/sys/windows"
-)
-
-var deviceClassNetGUID = windows.GUID{Data1: 0x4d36e972, Data2: 0xe325, Data3: 0x11ce, Data4: [8]byte{0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18}}
-var computerName string
-
-func init() {
-	computerName, _ = windows.ComputerName()
-}
-
-func TestSetupDiCreateDeviceInfoListEx(t *testing.T) {
-	devInfoList, err := SetupDiCreateDeviceInfoListEx(&deviceClassNetGUID, 0, "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiCreateDeviceInfoListEx: %s", err.Error())
-	} else {
-		devInfoList.Close()
-	}
-
-	devInfoList, err = SetupDiCreateDeviceInfoListEx(&deviceClassNetGUID, 0, computerName)
-	if err != nil {
-		t.Errorf("Error calling SetupDiCreateDeviceInfoListEx: %s", err.Error())
-	} else {
-		devInfoList.Close()
-	}
-
-	devInfoList, err = SetupDiCreateDeviceInfoListEx(nil, 0, "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiCreateDeviceInfoListEx(nil): %s", err.Error())
-	} else {
-		devInfoList.Close()
-	}
-}
-
-func TestSetupDiGetDeviceInfoListDetail(t *testing.T) {
-	devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "", 0, DIGCF_PRESENT, DevInfo(0), "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	data, err := devInfoList.DeviceInfoListDetail()
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetDeviceInfoListDetail: %s", err.Error())
-	} else {
-		if data.ClassGUID != deviceClassNetGUID {
-			t.Error("SetupDiGetDeviceInfoListDetail returned different class GUID")
-		}
-
-		if data.RemoteMachineHandle != windows.Handle(0) {
-			t.Error("SetupDiGetDeviceInfoListDetail returned non-NULL remote machine handle")
-		}
-
-		if data.RemoteMachineName() != "" {
-			t.Error("SetupDiGetDeviceInfoListDetail returned non-NULL remote machine name")
-		}
-	}
-
-	devInfoList, err = SetupDiGetClassDevsEx(&deviceClassNetGUID, "", 0, DIGCF_PRESENT, DevInfo(0), computerName)
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	data, err = devInfoList.DeviceInfoListDetail()
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetDeviceInfoListDetail: %s", err.Error())
-	} else {
-		if data.ClassGUID != deviceClassNetGUID {
-			t.Error("SetupDiGetDeviceInfoListDetail returned different class GUID")
-		}
-
-		if data.RemoteMachineHandle == windows.Handle(0) {
-			t.Error("SetupDiGetDeviceInfoListDetail returned NULL remote machine handle")
-		}
-
-		if data.RemoteMachineName() != computerName {
-			t.Error("SetupDiGetDeviceInfoListDetail returned different remote machine name")
-		}
-	}
-
-	data = &DevInfoListDetailData{}
-	data.SetRemoteMachineName("foobar")
-	if data.RemoteMachineName() != "foobar" {
-		t.Error("DevInfoListDetailData.(Get|Set)RemoteMachineName() differ")
-	}
-}
-
-func TestSetupDiCreateDeviceInfo(t *testing.T) {
-	devInfoList, err := SetupDiCreateDeviceInfoListEx(&deviceClassNetGUID, 0, computerName)
-	if err != nil {
-		t.Errorf("Error calling SetupDiCreateDeviceInfoListEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	deviceClassNetName, err := SetupDiClassNameFromGuidEx(&deviceClassNetGUID, computerName)
-	if err != nil {
-		t.Errorf("Error calling SetupDiClassNameFromGuidEx: %s", err.Error())
-	}
-
-	devInfoData, err := devInfoList.CreateDeviceInfo(deviceClassNetName, &deviceClassNetGUID, "This is a test device", 0, DICD_GENERATE_ID)
-	if err != nil {
-		// Access denied is expected, as the SetupDiCreateDeviceInfo() require elevation to succeed.
-		if errWin, ok := err.(windows.Errno); !ok || errWin != windows.ERROR_ACCESS_DENIED {
-			t.Errorf("Error calling SetupDiCreateDeviceInfo: %s", err.Error())
-		}
-	} else if devInfoData.ClassGUID != deviceClassNetGUID {
-		t.Error("SetupDiCreateDeviceInfo returned different class GUID")
-	}
-}
-
-func TestSetupDiEnumDeviceInfo(t *testing.T) {
-	devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "", 0, DIGCF_PRESENT, DevInfo(0), "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	for i := 0; true; i++ {
-		data, err := devInfoList.EnumDeviceInfo(i)
-		if err != nil {
-			if errWin, ok := err.(windows.Errno); ok && errWin == windows.ERROR_NO_MORE_ITEMS {
-				break
-			}
-			continue
-		}
-
-		if data.ClassGUID != deviceClassNetGUID {
-			t.Error("SetupDiEnumDeviceInfo returned different class GUID")
-		}
-
-		_, err = devInfoList.DeviceInstanceID(data)
-		if err != nil {
-			t.Errorf("Error calling SetupDiGetDeviceInstanceId: %s", err.Error())
-		}
-	}
-}
-
-func TestDevInfo_BuildDriverInfoList(t *testing.T) {
-	devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "", 0, DIGCF_PRESENT, DevInfo(0), "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	for i := 0; true; i++ {
-		deviceData, err := devInfoList.EnumDeviceInfo(i)
-		if err != nil {
-			if errWin, ok := err.(windows.Errno); ok && errWin == windows.ERROR_NO_MORE_ITEMS {
-				break
-			}
-			continue
-		}
-
-		const driverType SPDIT = SPDIT_COMPATDRIVER
-		err = devInfoList.BuildDriverInfoList(deviceData, driverType)
-		if err != nil {
-			t.Errorf("Error calling SetupDiBuildDriverInfoList: %s", err.Error())
-		}
-		defer devInfoList.DestroyDriverInfoList(deviceData, driverType)
-
-		var selectedDriverData *DrvInfoData
-		for j := 0; true; j++ {
-			driverData, err := devInfoList.EnumDriverInfo(deviceData, driverType, j)
-			if err != nil {
-				if errWin, ok := err.(windows.Errno); ok && errWin == windows.ERROR_NO_MORE_ITEMS {
-					break
-				}
-				continue
-			}
-
-			if driverData.DriverType == 0 {
-				continue
-			}
-
-			if !driverData.IsNewer(windows.Filetime{}, 0) {
-				t.Error("Driver should have non-zero date and version")
-			}
-			if !driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime}, 0) {
-				t.Error("Driver should have non-zero date and version")
-			}
-			if driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime + 1}, 0) {
-				t.Error("Driver should report newer version on high-date-time")
-			}
-			if !driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime, LowDateTime: driverData.DriverDate.LowDateTime}, 0) {
-				t.Error("Driver should have non-zero version")
-			}
-			if driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime, LowDateTime: driverData.DriverDate.LowDateTime + 1}, 0) {
-				t.Error("Driver should report newer version on low-date-time")
-			}
-			if driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime, LowDateTime: driverData.DriverDate.LowDateTime}, driverData.DriverVersion) {
-				t.Error("Driver should not be newer than itself")
-			}
-			if driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime, LowDateTime: driverData.DriverDate.LowDateTime}, driverData.DriverVersion+1) {
-				t.Error("Driver should report newer version on version")
-			}
-
-			err = devInfoList.SetSelectedDriver(deviceData, driverData)
-			if err != nil {
-				t.Errorf("Error calling SetupDiSetSelectedDriver: %s", err.Error())
-			} else {
-				selectedDriverData = driverData
-			}
-
-			driverDetailData, err := devInfoList.DriverInfoDetail(deviceData, driverData)
-			if err != nil {
-				t.Errorf("Error calling SetupDiGetDriverInfoDetail: %s", err.Error())
-			}
-
-			if driverDetailData.IsCompatible("foobar-aab6e3a4-144e-4786-88d3-6cec361e1edd") {
-				t.Error("Invalid HWID compatibitlity reported")
-			}
-			if !driverDetailData.IsCompatible(strings.ToUpper(driverDetailData.HardwareID())) {
-				t.Error("HWID compatibitlity missed")
-			}
-			a := driverDetailData.CompatIDs()
-			for k := range a {
-				if !driverDetailData.IsCompatible(strings.ToUpper(a[k])) {
-					t.Error("HWID compatibitlity missed")
-				}
-			}
-		}
-
-		selectedDriverData2, err := devInfoList.SelectedDriver(deviceData)
-		if err != nil {
-			t.Errorf("Error calling SetupDiGetSelectedDriver: %s", err.Error())
-		} else if *selectedDriverData != *selectedDriverData2 {
-			t.Error("SetupDiGetSelectedDriver should return driver selected with SetupDiSetSelectedDriver")
-		}
-	}
-
-	data := &DrvInfoData{}
-	data.SetDescription("foobar")
-	if data.Description() != "foobar" {
-		t.Error("DrvInfoData.(Get|Set)Description() differ")
-	}
-	data.SetMfgName("foobar")
-	if data.MfgName() != "foobar" {
-		t.Error("DrvInfoData.(Get|Set)MfgName() differ")
-	}
-	data.SetProviderName("foobar")
-	if data.ProviderName() != "foobar" {
-		t.Error("DrvInfoData.(Get|Set)ProviderName() differ")
-	}
-}
-
-func TestSetupDiGetClassDevsEx(t *testing.T) {
-	devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "PCI", 0, DIGCF_PRESENT, DevInfo(0), computerName)
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	} else {
-		devInfoList.Close()
-	}
-
-	devInfoList, err = SetupDiGetClassDevsEx(nil, "", 0, DIGCF_PRESENT, DevInfo(0), "")
-	if err != nil {
-		if errWin, ok := err.(windows.Errno); !ok || errWin != windows.ERROR_INVALID_PARAMETER {
-			t.Errorf("SetupDiGetClassDevsEx(nil, ...) should fail with ERROR_INVALID_PARAMETER")
-		}
-	} else {
-		devInfoList.Close()
-		t.Errorf("SetupDiGetClassDevsEx(nil, ...) should fail")
-	}
-}
-
-func TestSetupDiOpenDevRegKey(t *testing.T) {
-	devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "", 0, DIGCF_PRESENT, DevInfo(0), "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	for i := 0; true; i++ {
-		data, err := devInfoList.EnumDeviceInfo(i)
-		if err != nil {
-			if errWin, ok := err.(windows.Errno); ok && errWin == windows.ERROR_NO_MORE_ITEMS {
-				break
-			}
-			continue
-		}
-
-		key, err := devInfoList.OpenDevRegKey(data, DICS_FLAG_GLOBAL, 0, DIREG_DRV, windows.KEY_READ)
-		if err != nil {
-			t.Errorf("Error calling SetupDiOpenDevRegKey: %s", err.Error())
-		}
-		defer key.Close()
-	}
-}
-
-func TestSetupDiGetDeviceRegistryProperty(t *testing.T) {
-	devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "", 0, DIGCF_PRESENT, DevInfo(0), "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	for i := 0; true; i++ {
-		data, err := devInfoList.EnumDeviceInfo(i)
-		if err != nil {
-			if errWin, ok := err.(windows.Errno); ok && errWin == windows.ERROR_NO_MORE_ITEMS {
-				break
-			}
-			continue
-		}
-
-		val, err := devInfoList.DeviceRegistryProperty(data, SPDRP_CLASS)
-		if err != nil {
-			t.Errorf("Error calling SetupDiGetDeviceRegistryProperty(SPDRP_CLASS): %s", err.Error())
-		} else if class, ok := val.(string); !ok || strings.ToLower(class) != "net" {
-			t.Errorf("SetupDiGetDeviceRegistryProperty(SPDRP_CLASS) should return \"Net\"")
-		}
-
-		val, err = devInfoList.DeviceRegistryProperty(data, SPDRP_CLASSGUID)
-		if err != nil {
-			t.Errorf("Error calling SetupDiGetDeviceRegistryProperty(SPDRP_CLASSGUID): %s", err.Error())
-		} else if valStr, ok := val.(string); !ok {
-			t.Errorf("SetupDiGetDeviceRegistryProperty(SPDRP_CLASSGUID) should return string")
-		} else {
-			classGUID, err := windows.GUIDFromString(valStr)
-			if err != nil {
-				t.Errorf("Error parsing GUID returned by SetupDiGetDeviceRegistryProperty(SPDRP_CLASSGUID): %s", err.Error())
-			} else if classGUID != deviceClassNetGUID {
-				t.Errorf("SetupDiGetDeviceRegistryProperty(SPDRP_CLASSGUID) should return %x", deviceClassNetGUID)
-			}
-		}
-
-		val, err = devInfoList.DeviceRegistryProperty(data, SPDRP_COMPATIBLEIDS)
-		if err != nil {
-			// Some devices have no SPDRP_COMPATIBLEIDS.
-			if errWin, ok := err.(windows.Errno); !ok || errWin != windows.ERROR_INVALID_DATA {
-				t.Errorf("Error calling SetupDiGetDeviceRegistryProperty(SPDRP_COMPATIBLEIDS): %s", err.Error())
-			}
-		}
-
-		val, err = devInfoList.DeviceRegistryProperty(data, SPDRP_CONFIGFLAGS)
-		if err != nil {
-			t.Errorf("Error calling SetupDiGetDeviceRegistryProperty(SPDRP_CONFIGFLAGS): %s", err.Error())
-		}
-
-		val, err = devInfoList.DeviceRegistryProperty(data, SPDRP_DEVICE_POWER_DATA)
-		if err != nil {
-			t.Errorf("Error calling SetupDiGetDeviceRegistryProperty(SPDRP_DEVICE_POWER_DATA): %s", err.Error())
-		}
-	}
-}
-
-func TestSetupDiGetDeviceInstallParams(t *testing.T) {
-	devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "", 0, DIGCF_PRESENT, DevInfo(0), "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	for i := 0; true; i++ {
-		data, err := devInfoList.EnumDeviceInfo(i)
-		if err != nil {
-			if errWin, ok := err.(windows.Errno); ok && errWin == windows.ERROR_NO_MORE_ITEMS {
-				break
-			}
-			continue
-		}
-
-		_, err = devInfoList.DeviceInstallParams(data)
-		if err != nil {
-			t.Errorf("Error calling SetupDiGetDeviceInstallParams: %s", err.Error())
-		}
-	}
-
-	params := &DevInstallParams{}
-	params.SetDriverPath("foobar")
-	if params.DriverPath() != "foobar" {
-		t.Error("DevInstallParams.(Get|Set)DriverPath() differ")
-	}
-}
-
-func TestSetupDiClassNameFromGuidEx(t *testing.T) {
-	deviceClassNetName, err := SetupDiClassNameFromGuidEx(&deviceClassNetGUID, "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiClassNameFromGuidEx: %s", err.Error())
-	} else if strings.ToLower(deviceClassNetName) != "net" {
-		t.Errorf("SetupDiClassNameFromGuidEx(%x) should return \"Net\"", deviceClassNetGUID)
-	}
-
-	deviceClassNetName, err = SetupDiClassNameFromGuidEx(&deviceClassNetGUID, computerName)
-	if err != nil {
-		t.Errorf("Error calling SetupDiClassNameFromGuidEx: %s", err.Error())
-	} else if strings.ToLower(deviceClassNetName) != "net" {
-		t.Errorf("SetupDiClassNameFromGuidEx(%x) should return \"Net\"", deviceClassNetGUID)
-	}
-
-	_, err = SetupDiClassNameFromGuidEx(nil, "")
-	if err != nil {
-		if errWin, ok := err.(windows.Errno); !ok || errWin != windows.ERROR_INVALID_USER_BUFFER {
-			t.Errorf("SetupDiClassNameFromGuidEx(nil) should fail with ERROR_INVALID_USER_BUFFER")
-		}
-	} else {
-		t.Errorf("SetupDiClassNameFromGuidEx(nil) should fail")
-	}
-}
-
-func TestSetupDiClassGuidsFromNameEx(t *testing.T) {
-	ClassGUIDs, err := SetupDiClassGuidsFromNameEx("Net", "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiClassGuidsFromNameEx: %s", err.Error())
-	} else {
-		found := false
-		for i := range ClassGUIDs {
-			if ClassGUIDs[i] == deviceClassNetGUID {
-				found = true
-				break
-			}
-		}
-		if !found {
-			t.Errorf("SetupDiClassGuidsFromNameEx(\"Net\") should return %x", deviceClassNetGUID)
-		}
-	}
-
-	ClassGUIDs, err = SetupDiClassGuidsFromNameEx("foobar-34274a51-a6e6-45f0-80d6-c62be96dd5fe", computerName)
-	if err != nil {
-		t.Errorf("Error calling SetupDiClassGuidsFromNameEx: %s", err.Error())
-	} else if len(ClassGUIDs) != 0 {
-		t.Errorf("SetupDiClassGuidsFromNameEx(\"foobar-34274a51-a6e6-45f0-80d6-c62be96dd5fe\") should return an empty GUID set")
-	}
-}
-
-func TestSetupDiGetSelectedDevice(t *testing.T) {
-	devInfoList, err := SetupDiGetClassDevsEx(&deviceClassNetGUID, "", 0, DIGCF_PRESENT, DevInfo(0), "")
-	if err != nil {
-		t.Errorf("Error calling SetupDiGetClassDevsEx: %s", err.Error())
-	}
-	defer devInfoList.Close()
-
-	for i := 0; true; i++ {
-		data, err := devInfoList.EnumDeviceInfo(i)
-		if err != nil {
-			if errWin, ok := err.(windows.Errno); ok && errWin == windows.ERROR_NO_MORE_ITEMS {
-				break
-			}
-			continue
-		}
-
-		err = devInfoList.SetSelectedDevice(data)
-		if err != nil {
-			t.Errorf("Error calling SetupDiSetSelectedDevice: %s", err.Error())
-		}
-
-		data2, err := devInfoList.SelectedDevice()
-		if err != nil {
-			t.Errorf("Error calling SetupDiGetSelectedDevice: %s", err.Error())
-		} else if *data != *data2 {
-			t.Error("SetupDiGetSelectedDevice returned different data than was set by SetupDiSetSelectedDevice")
-		}
-	}
-
-	err = devInfoList.SetSelectedDevice(nil)
-	if err != nil {
-		if errWin, ok := err.(windows.Errno); !ok || errWin != windows.ERROR_INVALID_PARAMETER {
-			t.Errorf("SetupDiSetSelectedDevice(nil) should fail with ERROR_INVALID_USER_BUFFER")
-		}
-	} else {
-		t.Errorf("SetupDiSetSelectedDevice(nil) should fail")
-	}
-}
-
-func TestUTF16ToBuf(t *testing.T) {
-	buf := []uint16{0x0123, 0x4567, 0x89ab, 0xcdef}
-	buf2 := utf16ToBuf(buf)
-	if len(buf)*2 != len(buf2) ||
-		cap(buf)*2 != cap(buf2) ||
-		buf2[0] != 0x23 || buf2[1] != 0x01 ||
-		buf2[2] != 0x67 || buf2[3] != 0x45 ||
-		buf2[4] != 0xab || buf2[5] != 0x89 ||
-		buf2[6] != 0xef || buf2[7] != 0xcd {
-		t.Errorf("SetupDiSetSelectedDevice(nil) should fail with ERROR_INVALID_USER_BUFFER")
-	}
-	runtime.KeepAlive(buf)
-}

tun/wintun/setupapi/types32_windows.go

@@ -1,13 +0,0 @@
-// +build 386 arm
-
-/* SPDX-License-Identifier: MIT
- *
- * Copyright (C) 2020 WireGuard LLC. All Rights Reserved.
- */
-
-package setupapi
-
-const (
-	sizeofDevInfoListDetailData uint32 = 550
-	sizeofDrvInfoDetailData     uint32 = 1570
-)