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/* SPDX-License-Identifier: GPL-2.0
 *
 * Copyright (C) 2018-2020 WireGuard LLC. All Rights Reserved.
 */

#pragma once

#include "api.h"
#include <SetupAPI.h>
#include <IPExport.h>

#define MAX_POOL 256
#define MAX_INSTANCE_ID MAX_PATH /* TODO: Is MAX_PATH always enough? */

typedef struct _SP_DEVINFO_DATA_LIST
{
    SP_DEVINFO_DATA Data;
    struct _SP_DEVINFO_DATA_LIST *Next;
} SP_DEVINFO_DATA_LIST;

WINTUN_STATUS
AdapterGetDrvInfoDetail(
    _In_ HDEVINFO DevInfo,
    _In_opt_ SP_DEVINFO_DATA *DevInfoData,
    _In_ SP_DRVINFO_DATA_W *DrvInfoData,
    _Out_ SP_DRVINFO_DETAIL_DATA_W **DrvInfoDetailData);

WINTUN_STATUS
AdapterDisableAllOurs(_In_ HDEVINFO DevInfo, _Inout_ SP_DEVINFO_DATA_LIST **DisabledAdapters);

WINTUN_STATUS
AdapterEnableAll(_In_ HDEVINFO DevInfo, _In_ SP_DEVINFO_DATA_LIST *AdaptersToEnable);

WINTUN_STATUS
AdapterDeleteAllOurs();

void
AdapterInit();

void
AdapterCleanup();

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_count_c_(MAX_ADAPTER_NAME) 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_count_c_(MAX_ADAPTER_NAME) 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_ENUM_FUNC)(_In_ const WINTUN_ADAPTER *Adapter, _In_ LPARAM Param);

WINTUN_STATUS WINAPI
WintunEnumAdapters(_In_z_count_c_(MAX_POOL) const WCHAR *Pool, _In_ WINTUN_ENUM_FUNC Func, _In_ LPARAM Param);