elevate: do not show UAC prompt for frictionless UX

1 files changed, 52 insertions, 0 deletions

diff --git a/elevate/syscall_windows.go b/elevate/syscall_windows.go
new file mode 100644
index 00000000..c73be812
--- /dev/null
+++ b/elevate/syscall_windows.go
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
+ */
+
+package elevate
+
+type cBIND_OPTS3 struct {
+	cbStruct            uint32
+	grfFlags            uint32
+	grfMode             uint32
+	dwTickCountDeadline uint32
+	dwTrackFlags        uint32
+	dwClassContext      uint32
+	locale              uint32
+	pServerInfo         *uintptr
+	hwnd                *uintptr
+}
+
+type cUNICODE_STRING struct {
+	Length        uint16
+	MaximumLength uint16
+	Buffer        *uint16
+}
+
+type cLDR_DATA_TABLE_ENTRY struct {
+	Reserved1          [2]uintptr
+	InMemoryOrderLinks [2]uintptr
+	Reserved2          [2]uintptr
+	DllBase            uintptr
+	Reserved3          [2]uintptr
+	FullDllName        cUNICODE_STRING
+	Reserved4          [8]byte
+	Reserved5          [3]uintptr
+	Reserved6          uintptr
+	TimeDateStamp      uint32
+}
+
+const (
+	cCLSCTX_LOCAL_SERVER      = 4
+	cCOINIT_APARTMENTTHREADED = 2
+)
+
+//sys	getModuleHandle(moduleName *uint16) (moduleHandle uintptr, err error) [failretval==0] = kernel32.GetModuleHandleW
+//sys	getWindowsDirectory(windowsDirectory *uint16, inLen uint32) (outLen uint32, err error) [failretval==0] = kernel32.GetWindowsDirectoryW
+
+//sys	rtlInitUnicodeString(destinationString *cUNICODE_STRING, sourceString *uint16) = ntdll.RtlInitUnicodeString
+//sys	ldrFindEntryForAddress(moduleHandle uintptr, entry **cLDR_DATA_TABLE_ENTRY) (ntstatus uint32) = ntdll.LdrFindEntryForAddress
+
+//sys	coInitializeEx(reserved uintptr, coInit uint32) (ret error) = ole32.CoInitializeEx
+//sys	coUninitialize() = ole32.CoUninitialize
+//sys	coGetObject(name *uint16, bindOpts *cBIND_OPTS3, guid *windows.GUID, functionTable ***[0xffff]uintptr) (ret error) = ole32.CoGetObject