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>

3 files changed, 0 insertions, 96 deletions

diff --git a/tun/wintun/nci/mksyscall.go b/tun/wintun/nci/mksyscall.go
deleted file mode 100644
index 129e015..0000000
--- a/tun/wintun/nci/mksyscall.go
+++ /dev/null
@@ -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
diff --git a/tun/wintun/nci/nci_windows.go b/tun/wintun/nci/nci_windows.go
deleted file mode 100644
index dc9733c..0000000
--- a/tun/wintun/nci/nci_windows.go
+++ /dev/null
@@ -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
-}
diff --git a/tun/wintun/nci/zsyscall_windows.go b/tun/wintun/nci/zsyscall_windows.go
deleted file mode 100644
index 2a7b79e..0000000
--- a/tun/wintun/nci/zsyscall_windows.go
+++ /dev/null
@@ -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
-}