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/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2018-2020 WireGuard LLC. All Rights Reserved.
*/
#pragma once
#include <Windows.h>
#include <IPExport.h>
typedef _Return_type_success_(return == ERROR_SUCCESS) DWORD WINTUN_STATUS;
extern HINSTANCE ResourceModule;
_Check_return_
HANDLE
TakeNameMutex(_In_z_ const WCHAR *Pool);
void
ReleaseNameMutex(_In_ HANDLE Mutex);
void
NamespaceInit();
void
NamespaceCleanup();
extern DWORD(WINAPI *NciSetConnectionName)(_In_ const GUID *Guid, _In_z_ const WCHAR *NewName);
extern DWORD(WINAPI *NciGetConnectionName)(
_In_ const GUID *Guid,
_Out_z_bytecap_(InDestNameBytes) WCHAR *Name,
_In_ DWORD InDestNameBytes,
_Out_opt_ DWORD *OutDestNameBytes);
void
NciInit();
void
NciCleanup();
#define MAX_REG_PATH \
256 /* Maximum registry path length \
https://support.microsoft.com/en-us/help/256986/windows-registry-information-for-advanced-users */
WINTUN_STATUS
RegistryOpenKeyWait(
_In_ HKEY Key,
_In_z_count_c_(MAX_REG_PATH) const WCHAR *Path,
_In_ DWORD Access,
_In_ DWORD Timeout,
_Out_ HKEY *KeyOut);
WINTUN_STATUS
RegistryWaitForKey(_In_ HKEY Key, _In_z_count_c_(MAX_REG_PATH) const WCHAR *Path, _In_ DWORD Timeout);
WINTUN_STATUS
RegistryGetString(_Inout_ WCHAR **Buf, _In_ DWORD Len, _In_ DWORD ValueType);
WINTUN_STATUS
RegistryGetMultiString(_Inout_ WCHAR **Buf, _In_ DWORD Len, _In_ DWORD ValueType);
WINTUN_STATUS
RegistryQueryString(_In_ HKEY Key, _In_opt_z_ const WCHAR *Name, _Out_ WCHAR **Value);
WINTUN_STATUS
RegistryQueryStringWait(_In_ HKEY Key, _In_opt_z_ const WCHAR *Name, _In_ DWORD Timeout, _Out_ WCHAR **Value);
WINTUN_STATUS
RegistryQueryDWORD(_In_ HKEY Key, _In_opt_z_ const WCHAR *Name, _Out_ DWORD *Value);
WINTUN_STATUS
RegistryQueryDWORDWait(_In_ HKEY Key, _In_opt_z_ const WCHAR *Name, _In_ DWORD Timeout, _Out_ DWORD *Value);
WINTUN_STATUS WINAPI
WintunGetVersion(
_Out_ DWORD *DriverVersionMaj,
_Out_ DWORD *DriverVersionMin,
_Out_ DWORD *NdisVersionMaj,
_Out_ DWORD *NdisVersionMin);
#define MAX_POOL 256
#define MAX_INSTANCE_ID MAX_PATH /* TODO: Is MAX_PATH always enough? */
typedef struct _WINTUN_ADAPTER
{
GUID CfgInstanceID;
WCHAR DevInstanceID[MAX_INSTANCE_ID];
DWORD LuidIndex;
DWORD IfType;
WCHAR Pool[MAX_POOL];
} WINTUN_ADAPTER;
void WINAPI
WintunFreeAdapter(_In_ WINTUN_ADAPTER *Adapter);
WINTUN_STATUS WINAPI
WintunGetAdapter(_In_z_count_c_(MAX_POOL) const WCHAR *Pool, _In_z_ const WCHAR *Name, _Out_ WINTUN_ADAPTER **Adapter);
WINTUN_STATUS WINAPI
WintunGetAdapterName(_In_ const WINTUN_ADAPTER *Adapter, _Out_cap_c_(MAX_ADAPTER_NAME) WCHAR *Name);
WINTUN_STATUS WINAPI
WintunSetAdapterName(_In_ const WINTUN_ADAPTER *Adapter, _In_z_count_c_(MAX_ADAPTER_NAME) const WCHAR *Name);
void WINAPI
WintunGetAdapterGUID(_In_ const WINTUN_ADAPTER *Adapter, _Out_ GUID *Guid);
void WINAPI
WintunGetAdapterLUID(_In_ const WINTUN_ADAPTER *Adapter, _Out_ LUID *Luid);
WINTUN_STATUS WINAPI
WintunGetAdapterDeviceObject(_In_ const WINTUN_ADAPTER *Adapter, _Out_ HANDLE *Handle);
WINTUN_STATUS WINAPI
WintunCreateAdapter(
_In_z_count_c_(MAX_POOL) const WCHAR *Pool,
_In_z_ const WCHAR *Name,
_In_opt_ const GUID *RequestedGUID,
_Out_ WINTUN_ADAPTER **Adapter,
_Inout_ BOOL *RebootRequired);
WINTUN_STATUS WINAPI
WintunDeleteAdapter(_In_ const WINTUN_ADAPTER *Adapter, _Inout_ BOOL *RebootRequired);
typedef BOOL(CALLBACK *WINTUN_ENUMPROC)(_In_ const WINTUN_ADAPTER *Adapter, _In_ LPARAM Param);
WINTUN_STATUS WINAPI
WintunEnumAdapters(_In_z_count_c_(MAX_POOL) const WCHAR *Pool, _In_ WINTUN_ENUMPROC Func, _In_ LPARAM Param);
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