api: installer: switch from MSM to ZIP distribution

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

1 files changed, 0 insertions, 666 deletions

diff --git a/installer/installation.c b/installer/installation.c
deleted file mode 100644
index cd5c300..0000000
--- a/installer/installation.c
+++ /dev/null
@@ -1,666 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0
- *
- * Copyright (C) 2018-2019 WireGuard LLC. All Rights Reserved.
- */
-
-#include "installation.h"
-#include <Windows.h>
-#include <NTSecAPI.h>
-#include <SetupAPI.h>
-#include <newdev.h>
-#include <Shlwapi.h>
-#include <Psapi.h>
-#include <sddl.h>
-#include <devguid.h>
-#include <ndisguid.h>
-#include <cfgmgr32.h>
-#include <WinCrypt.h>
-#include <tchar.h>
-#include <stdio.h>
-
-#pragma warning(disable : 4100) /* unreferenced formal parameter */
-#pragma warning(disable : 4204) /* nonstandard: non-constant aggregate initializer */
-#pragma warning(disable : 4221) /* nonstandard: address of automatic in initializer */
-
-typedef struct _SP_DEVINFO_DATA_LIST
-{
-    SP_DEVINFO_DATA Data;
-    struct _SP_DEVINFO_DATA_LIST *Next;
-} SP_DEVINFO_DATA_LIST;
-
-static VOID
-NopLogger(_In_ LOGGER_LEVEL Level, _In_ const TCHAR *LogLine)
-{
-}
-
-static LoggerFunction Logger = NopLogger;
-
-VOID
-SetLogger(_In_ LoggerFunction NewLogger)
-{
-    Logger = NewLogger;
-}
-
-static VOID
-PrintError(_In_ LOGGER_LEVEL Level, _In_ const TCHAR *Prefix)
-{
-    DWORD ErrorCode = GetLastError();
-    TCHAR *SystemMessage = NULL, *FormattedMessage = NULL;
-    FormatMessage(
-        FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_MAX_WIDTH_MASK,
-        NULL,
-        HRESULT_FROM_SETUPAPI(ErrorCode),
-        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-        (VOID *)&SystemMessage,
-        0,
-        NULL);
-    FormatMessage(
-        FORMAT_MESSAGE_FROM_STRING | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_ARGUMENT_ARRAY |
-            FORMAT_MESSAGE_MAX_WIDTH_MASK,
-        SystemMessage ? TEXT("%1: %3(Code 0x%2!08X!)") : TEXT("%1: Code 0x%2!08X!"),
-        0,
-        0,
-        (VOID *)&FormattedMessage,
-        0,
-        (va_list *)(DWORD_PTR[]){ (DWORD_PTR)Prefix, (DWORD_PTR)ErrorCode, (DWORD_PTR)SystemMessage });
-    if (FormattedMessage)
-        Logger(Level, FormattedMessage);
-    LocalFree(FormattedMessage);
-    LocalFree(SystemMessage);
-}
-
-HINSTANCE ResourceModule;
-
-static BOOL IsWintunLoaded(VOID)
-{
-    DWORD RequiredSize = 0, CurrentSize = 0;
-    VOID **Drivers = NULL;
-    BOOL Found = FALSE;
-    for (;;)
-    {
-        if (!EnumDeviceDrivers(Drivers, CurrentSize, &RequiredSize))
-            goto out;
-        if (CurrentSize == RequiredSize)
-            break;
-        free(Drivers);
-        Drivers = malloc(RequiredSize);
-        if (!Drivers)
-            goto out;
-        CurrentSize = RequiredSize;
-    }
-    TCHAR MaybeWintun[11];
-    for (DWORD i = CurrentSize / sizeof(Drivers[0]); i-- > 0;)
-    {
-        if (GetDeviceDriverBaseName(Drivers[i], MaybeWintun, _countof(MaybeWintun)) == 10 &&
-            !_tcsicmp(MaybeWintun, TEXT("wintun.sys")))
-        {
-            Found = TRUE;
-            goto out;
-        }
-    }
-out:
-    free(Drivers);
-    return Found;
-}
-
-static BOOL EnsureWintunUnloaded(VOID)
-{
-    BOOL Loaded;
-    for (int i = 0; (Loaded = IsWintunLoaded()) != 0 && i < 300; ++i)
-        Sleep(50);
-    return !Loaded;
-}
-
-static BOOL
-CopyResource(
-    _In_ const TCHAR *DestinationPath,
-    _In_opt_ SECURITY_ATTRIBUTES *SecurityAttributes,
-    _In_ const TCHAR *ResourceName)
-{
-    HRSRC FoundResource = FindResource(ResourceModule, ResourceName, RT_RCDATA);
-    if (!FoundResource)
-        return FALSE;
-    DWORD SizeResource = SizeofResource(ResourceModule, FoundResource);
-    if (!SizeResource)
-        return FALSE;
-    HGLOBAL LoadedResource = LoadResource(ResourceModule, FoundResource);
-    if (!LoadedResource)
-        return FALSE;
-    LPVOID LockedResource = LockResource(LoadedResource);
-    if (!LockedResource)
-        return FALSE;
-    HANDLE DestinationHandle = CreateFile(
-        DestinationPath,
-        GENERIC_WRITE,
-        0,
-        SecurityAttributes,
-        CREATE_NEW,
-        FILE_ATTRIBUTE_NORMAL | FILE_ATTRIBUTE_TEMPORARY,
-        NULL);
-    if (DestinationHandle == INVALID_HANDLE_VALUE)
-        return FALSE;
-    DWORD BytesWritten;
-    BOOL Ret =
-        WriteFile(DestinationHandle, LockedResource, SizeResource, &BytesWritten, NULL) && BytesWritten == SizeResource;
-    CloseHandle(DestinationHandle);
-    return Ret;
-}
-
-static BOOL
-InstallWintunCertificate(const TCHAR *SignedResource)
-{
-    DWORD LastError = ERROR_SUCCESS;
-    Logger(LOG_INFO, TEXT("Trusting code signing certificate"));
-    BOOL Ret = TRUE;
-    HRSRC FoundResource = FindResource(ResourceModule, SignedResource, RT_RCDATA);
-    if (!FoundResource)
-        return FALSE;
-    DWORD SizeResource = SizeofResource(ResourceModule, FoundResource);
-    if (!SizeResource)
-        return FALSE;
-    HGLOBAL LoadedResource = LoadResource(ResourceModule, FoundResource);
-    if (!LoadedResource)
-        return FALSE;
-    LPVOID LockedResource = LockResource(LoadedResource);
-    if (!LockedResource)
-        return FALSE;
-    const CERT_BLOB CertBlob = { .cbData = SizeResource, .pbData = LockedResource };
-    HCERTSTORE QueriedStore;
-    if (!CryptQueryObject(
-            CERT_QUERY_OBJECT_BLOB,
-            &CertBlob,
-            CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED_EMBED,
-            CERT_QUERY_FORMAT_FLAG_ALL,
-            0,
-            0,
-            0,
-            0,
-            &QueriedStore,
-            0,
-            NULL))
-        return FALSE;
-    HCERTSTORE TrustedStore =
-        CertOpenStore(CERT_STORE_PROV_SYSTEM, 0, 0, CERT_SYSTEM_STORE_LOCAL_MACHINE, TEXT("TrustedPublisher"));
-    if (!TrustedStore)
-    {
-        LastError = GetLastError();
-        goto cleanupQueriedStore;
-    }
-    LPSTR CodeSigningOid[] = { szOID_PKIX_KP_CODE_SIGNING };
-    CERT_ENHKEY_USAGE EnhancedUsage = { .cUsageIdentifier = 1, .rgpszUsageIdentifier = CodeSigningOid };
-    for (const CERT_CONTEXT *CertContext = NULL; (CertContext = CertFindCertificateInStore(
-                                                      QueriedStore,
-                                                      X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
-                                                      CERT_FIND_EXT_ONLY_ENHKEY_USAGE_FLAG,
-                                                      CERT_FIND_ENHKEY_USAGE,
-                                                      &EnhancedUsage,
-                                                      CertContext)) != NULL;)
-    {
-        CERT_EXTENSION *Ext = CertFindExtension(
-            szOID_BASIC_CONSTRAINTS2, CertContext->pCertInfo->cExtension, CertContext->pCertInfo->rgExtension);
-        CERT_BASIC_CONSTRAINTS2_INFO Constraints;
-        DWORD Size = sizeof(Constraints);
-        if (Ext &&
-            CryptDecodeObjectEx(
-                X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
-                szOID_BASIC_CONSTRAINTS2,
-                Ext->Value.pbData,
-                Ext->Value.cbData,
-                0,
-                NULL,
-                &Constraints,
-                &Size) &&
-            !Constraints.fCA)
-            Ret &= CertAddCertificateContextToStore(TrustedStore, CertContext, CERT_STORE_ADD_REPLACE_EXISTING, NULL);
-        if (!Ret)
-            LastError = LastError ? LastError : GetLastError();
-    }
-    CertCloseStore(TrustedStore, 0);
-cleanupQueriedStore:
-    CertCloseStore(QueriedStore, 0);
-    SetLastError(LastError);
-    return Ret;
-}
-
-/* We can't use RtlGetVersion, because appcompat's aclayers.dll shims it to report Vista
- * when run from MSI context. So, we instead use the undocumented RtlGetNtVersionNumbers.
- *
- * Another way would be reading from the PEB directly:
- *   ((DWORD *)NtCurrentTeb()->ProcessEnvironmentBlock)[sizeof(void *) == 8 ? 70 : 41]
- * Or just read from KUSER_SHARED_DATA the same way on 32-bit and 64-bit:
- *    *(DWORD *)0x7FFE026C
- */
-extern VOID NTAPI
-RtlGetNtVersionNumbers(_Out_opt_ DWORD *MajorVersion, _Out_opt_ DWORD *MinorVersion, _Out_opt_ DWORD *BuildNumber);
-
-static BOOL
-InstallWintun(BOOL UpdateExisting)
-{
-    DWORD LastError = ERROR_SUCCESS;
-    TCHAR WindowsDirectory[MAX_PATH];
-    if (!GetWindowsDirectory(WindowsDirectory, _countof(WindowsDirectory)))
-        return FALSE;
-    TCHAR WindowsTempDirectory[MAX_PATH];
-    if (!PathCombine(WindowsTempDirectory, WindowsDirectory, TEXT("Temp")))
-        return FALSE;
-    UCHAR RandomBytes[32] = { 0 };
-#pragma warning(suppress : 6387)
-    if (!RtlGenRandom(RandomBytes, sizeof(RandomBytes)))
-        return FALSE;
-    TCHAR RandomSubDirectory[sizeof(RandomBytes) * 2 + 1];
-    for (int i = 0; i < sizeof(RandomBytes); ++i)
-        _stprintf_s(&RandomSubDirectory[i * 2], 3, TEXT("%02x"), RandomBytes[i]);
-    TCHAR RandomTempSubDirectory[MAX_PATH];
-    if (!PathCombine(RandomTempSubDirectory, WindowsTempDirectory, RandomSubDirectory))
-        return FALSE;
-    SECURITY_ATTRIBUTES SecurityAttributes = { .nLength = sizeof(SecurityAttributes) };
-    if (!ConvertStringSecurityDescriptorToSecurityDescriptor(
-            TEXT("O:SYD:P(A;;GA;;;SY)"), SDDL_REVISION_1, &SecurityAttributes.lpSecurityDescriptor, NULL))
-        return FALSE;
-    BOOL Ret = CreateDirectory(RandomTempSubDirectory, &SecurityAttributes);
-    if (!Ret)
-        goto cleanupFree;
-
-    TCHAR CatPath[MAX_PATH] = { 0 };
-    if (!PathCombine(CatPath, RandomTempSubDirectory, TEXT("wintun.cat")))
-        goto cleanupFree;
-    TCHAR SysPath[MAX_PATH] = { 0 };
-    if (!PathCombine(SysPath, RandomTempSubDirectory, TEXT("wintun.sys")))
-        goto cleanupFree;
-    TCHAR InfPath[MAX_PATH] = { 0 };
-    if (!PathCombine(InfPath, RandomTempSubDirectory, TEXT("wintun.inf")))
-        goto cleanupFree;
-
-    BOOL UseWHQL = FALSE;
-#if defined(HAVE_EV) && defined(HAVE_WHQL)
-    DWORD MajorVersion;
-    RtlGetNtVersionNumbers(&MajorVersion, NULL, NULL);
-    UseWHQL = MajorVersion >= 10;
-#elif defined(HAVE_EV)
-    UseWHQL = FALSE;
-#elif defined(HAVE_WHQL)
-    UseWHQL = TRUE;
-#else
-    #error No driver available
-#endif
-    if (!UseWHQL && !InstallWintunCertificate(TEXT("wintun.sys")))
-        PrintError(LOG_WARN, TEXT("Unable to install code signing certificate"));
-
-    Logger(LOG_INFO, TEXT("Copying resources to temporary path"));
-    Ret = CopyResource(CatPath, &SecurityAttributes, UseWHQL ? TEXT("wintun-whql.cat") : TEXT("wintun.cat")) &&
-          CopyResource(SysPath, &SecurityAttributes, UseWHQL ? TEXT("wintun-whql.sys") : TEXT("wintun.sys")) &&
-          CopyResource(InfPath, &SecurityAttributes, UseWHQL ? TEXT("wintun-whql.inf") : TEXT("wintun.inf"));
-    if (!Ret)
-        goto cleanupDelete;
-
-    Logger(LOG_INFO, TEXT("Installing driver"));
-    Ret = SetupCopyOEMInf(InfPath, NULL, SPOST_PATH, 0, NULL, 0, NULL, NULL);
-    BOOL RebootRequired = FALSE;
-    if (UpdateExisting &&
-        !UpdateDriverForPlugAndPlayDevices(
-            NULL, TEXT("Wintun"), InfPath, INSTALLFLAG_FORCE | INSTALLFLAG_NONINTERACTIVE, &RebootRequired))
-        PrintError(LOG_WARN, TEXT("Could not update existing adapters"));
-    if (RebootRequired)
-        Logger(LOG_WARN, TEXT("A reboot might be required, which really should not be the case"));
-
-cleanupDelete:
-    LastError = GetLastError();
-    DeleteFile(CatPath);
-    DeleteFile(SysPath);
-    DeleteFile(InfPath);
-    RemoveDirectory(RandomTempSubDirectory);
-cleanupFree:
-    LastError = LastError ? LastError : GetLastError();
-    LocalFree(SecurityAttributes.lpSecurityDescriptor);
-    SetLastError(LastError);
-    return Ret;
-}
-
-static BOOL RemoveWintun(VOID)
-{
-    BOOL Ret = FALSE;
-    HDEVINFO DeviceInfoSet = SetupDiGetClassDevs(&GUID_DEVCLASS_NET, NULL, NULL, 0);
-    if (!DeviceInfoSet)
-        return FALSE;
-    if (!SetupDiBuildDriverInfoList(DeviceInfoSet, NULL, SPDIT_CLASSDRIVER))
-        goto cleanupDeviceInfoSet;
-    Ret = TRUE;
-    for (DWORD EnumIndex = 0;; ++EnumIndex)
-    {
-        SP_DRVINFO_DATA DriverInfo = { .cbSize = sizeof(DriverInfo) };
-        if (!SetupDiEnumDriverInfo(DeviceInfoSet, NULL, SPDIT_CLASSDRIVER, EnumIndex, &DriverInfo))
-        {
-            if (GetLastError() == ERROR_NO_MORE_ITEMS)
-                break;
-            goto cleanupDriverInfoList;
-        }
-        DWORD RequiredSize;
-        if (SetupDiGetDriverInfoDetail(DeviceInfoSet, NULL, &DriverInfo, NULL, 0, &RequiredSize) ||
-            GetLastError() != ERROR_INSUFFICIENT_BUFFER)
-            goto cleanupDriverInfoList;
-        PSP_DRVINFO_DETAIL_DATA DriverDetail = calloc(1, RequiredSize);
-        if (!DriverDetail)
-            goto cleanupDriverInfoList;
-        DriverDetail->cbSize = sizeof(*DriverDetail);
-        if (!SetupDiGetDriverInfoDetail(DeviceInfoSet, NULL, &DriverInfo, DriverDetail, RequiredSize, &RequiredSize))
-        {
-            free(DriverDetail);
-            goto cleanupDriverInfoList;
-        }
-        if (!_tcsicmp(DriverDetail->HardwareID, TEXT("wintun")))
-        {
-            PathStripPath(DriverDetail->InfFileName);
-            Logger(LOG_INFO, TEXT("Removing existing driver"));
-            if (!SetupUninstallOEMInf(DriverDetail->InfFileName, SUOI_FORCEDELETE, NULL))
-            {
-                PrintError(LOG_ERR, TEXT("Unable to remove existing driver"));
-                Ret = FALSE;
-            }
-        }
-        free(DriverDetail);
-    }
-
-cleanupDriverInfoList:
-    SetupDiDestroyDriverInfoList(DeviceInfoSet, NULL, SPDIT_CLASSDRIVER);
-cleanupDeviceInfoSet:
-    SetupDiDestroyDeviceInfoList(DeviceInfoSet);
-    return Ret;
-}
-
-static BOOL
-IsWintunAdapter(_In_ HDEVINFO DeviceInfoSet, _Inout_ SP_DEVINFO_DATA *DeviceInfo)
-{
-    BOOL Found = FALSE;
-    if (!SetupDiBuildDriverInfoList(DeviceInfoSet, DeviceInfo, SPDIT_COMPATDRIVER))
-        return FALSE;
-    for (DWORD EnumIndex = 0;; ++EnumIndex)
-    {
-        SP_DRVINFO_DATA DriverInfo = { .cbSize = sizeof(SP_DRVINFO_DATA) };
-        if (!SetupDiEnumDriverInfo(DeviceInfoSet, DeviceInfo, SPDIT_COMPATDRIVER, EnumIndex, &DriverInfo))
-        {
-            if (GetLastError() == ERROR_NO_MORE_ITEMS)
-                break;
-            continue;
-        }
-        DWORD RequiredSize;
-        if (SetupDiGetDriverInfoDetail(DeviceInfoSet, DeviceInfo, &DriverInfo, NULL, 0, &RequiredSize) ||
-            GetLastError() != ERROR_INSUFFICIENT_BUFFER)
-            continue;
-        PSP_DRVINFO_DETAIL_DATA DriverDetail = calloc(1, RequiredSize);
-        if (!DriverDetail)
-            continue;
-        DriverDetail->cbSize = sizeof(*DriverDetail);
-        if (SetupDiGetDriverInfoDetail(
-                DeviceInfoSet, DeviceInfo, &DriverInfo, DriverDetail, RequiredSize, &RequiredSize) &&
-            !_tcsicmp(DriverDetail->HardwareID, TEXT("wintun")))
-        {
-            free(DriverDetail);
-            Found = TRUE;
-            break;
-        }
-        free(DriverDetail);
-    }
-    SetupDiDestroyDriverInfoList(DeviceInfoSet, DeviceInfo, SPDIT_COMPATDRIVER);
-    return Found;
-}
-
-#define TUN_IOCTL_FORCE_CLOSE_HANDLES CTL_CODE(51820U, 0x971U, METHOD_NEITHER, FILE_READ_DATA | FILE_WRITE_DATA)
-
-static BOOL
-ForceCloseWintunAdapterHandle(_In_ HDEVINFO DeviceInfoSet, _In_ SP_DEVINFO_DATA *DeviceInfo)
-{
-    DWORD RequiredBytes;
-    if (SetupDiGetDeviceInstanceId(DeviceInfoSet, DeviceInfo, NULL, 0, &RequiredBytes) ||
-        GetLastError() != ERROR_INSUFFICIENT_BUFFER)
-        return FALSE;
-    TCHAR *InstanceId = calloc(sizeof(*InstanceId), RequiredBytes);
-    if (!InstanceId)
-        return FALSE;
-    BOOL Ret = FALSE;
-    if (!SetupDiGetDeviceInstanceId(DeviceInfoSet, DeviceInfo, InstanceId, RequiredBytes, &RequiredBytes))
-        goto out;
-    TCHAR *InterfaceList = NULL;
-    for (;;)
-    {
-        free(InterfaceList);
-        if (CM_Get_Device_Interface_List_Size(
-                &RequiredBytes, (LPGUID)&GUID_DEVINTERFACE_NET, InstanceId, CM_GET_DEVICE_INTERFACE_LIST_PRESENT) !=
-            CR_SUCCESS)
-            goto out;
-        InterfaceList = calloc(sizeof(*InterfaceList), RequiredBytes);
-        if (!InterfaceList)
-            goto out;
-        CONFIGRET CRet = CM_Get_Device_Interface_List(
-            (LPGUID)&GUID_DEVINTERFACE_NET,
-            InstanceId,
-            InterfaceList,
-            RequiredBytes,
-            CM_GET_DEVICE_INTERFACE_LIST_PRESENT);
-        if (CRet == CR_SUCCESS)
-            break;
-        if (CRet != CR_BUFFER_SMALL)
-        {
-            free(InterfaceList);
-            goto out;
-        }
-    }
-
-    HANDLE NdisHandle = CreateFile(
-        InterfaceList,
-        GENERIC_READ | GENERIC_WRITE,
-        FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
-        NULL,
-        OPEN_EXISTING,
-        0,
-        NULL);
-    free(InterfaceList);
-    if (NdisHandle == INVALID_HANDLE_VALUE)
-        goto out;
-    Ret = DeviceIoControl(NdisHandle, TUN_IOCTL_FORCE_CLOSE_HANDLES, NULL, 0, NULL, 0, &RequiredBytes, NULL);
-    DWORD LastError = GetLastError();
-    CloseHandle(NdisHandle);
-    SetLastError(LastError);
-out:
-    free(InstanceId);
-    return Ret;
-}
-
-static BOOL
-DisableWintunAdapters(_In_ HDEVINFO DeviceInfoSet, _Inout_ SP_DEVINFO_DATA_LIST **DisabledAdapters)
-{
-    SP_PROPCHANGE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER),
-                                                            .InstallFunction = DIF_PROPERTYCHANGE },
-                                    .StateChange = DICS_DISABLE,
-                                    .Scope = DICS_FLAG_GLOBAL };
-    BOOL Ret = TRUE;
-    DWORD LastError = ERROR_SUCCESS;
-    for (DWORD EnumIndex = 0;; ++EnumIndex)
-    {
-        SP_DEVINFO_DATA_LIST *DeviceNode = malloc(sizeof(SP_DEVINFO_DATA_LIST));
-        if (!DeviceNode)
-            return FALSE;
-        DeviceNode->Data.cbSize = sizeof(SP_DEVINFO_DATA);
-        if (!SetupDiEnumDeviceInfo(DeviceInfoSet, EnumIndex, &DeviceNode->Data))
-        {
-            if (GetLastError() == ERROR_NO_MORE_ITEMS)
-            {
-                free(DeviceNode);
-                break;
-            }
-            goto cleanupDeviceInfoData;
-        }
-        if (!IsWintunAdapter(DeviceInfoSet, &DeviceNode->Data))
-            goto cleanupDeviceInfoData;
-
-        ULONG Status, ProblemCode;
-        if (CM_Get_DevNode_Status(&Status, &ProblemCode, DeviceNode->Data.DevInst, 0) != CR_SUCCESS ||
-            ((Status & DN_HAS_PROBLEM) && ProblemCode == CM_PROB_DISABLED))
-            goto cleanupDeviceInfoData;
-
-        Logger(LOG_INFO, TEXT("Force closing all open handles for existing adapter"));
-        if (!ForceCloseWintunAdapterHandle(DeviceInfoSet, &DeviceNode->Data))
-            PrintError(LOG_WARN, TEXT("Failed to force close adapter handles"));
-        Sleep(200);
-
-        Logger(LOG_INFO, TEXT("Disabling existing adapter"));
-        if (!SetupDiSetClassInstallParams(
-                DeviceInfoSet, &DeviceNode->Data, &Params.ClassInstallHeader, sizeof(Params)) ||
-            !SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, DeviceInfoSet, &DeviceNode->Data))
-        {
-            PrintError(LOG_WARN, TEXT("Unable to disable existing adapter"));
-            LastError = LastError ? LastError : GetLastError();
-            Ret = FALSE;
-            goto cleanupDeviceInfoData;
-        }
-
-        DeviceNode->Next = *DisabledAdapters;
-        *DisabledAdapters = DeviceNode;
-        continue;
-
-    cleanupDeviceInfoData:
-        free(&DeviceNode->Data);
-    }
-    SetLastError(LastError);
-    return Ret;
-}
-
-static BOOL
-RemoveWintunAdapters(_In_ HDEVINFO DeviceInfoSet)
-{
-    SP_REMOVEDEVICE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER),
-                                                              .InstallFunction = DIF_REMOVE },
-                                      .Scope = DI_REMOVEDEVICE_GLOBAL };
-    BOOL Ret = TRUE;
-    DWORD LastError = ERROR_SUCCESS;
-    for (DWORD EnumIndex = 0;; ++EnumIndex)
-    {
-        SP_DEVINFO_DATA DeviceInfo = { .cbSize = sizeof(SP_DEVINFO_DATA) };
-        if (!SetupDiEnumDeviceInfo(DeviceInfoSet, EnumIndex, &DeviceInfo))
-        {
-            if (GetLastError() == ERROR_NO_MORE_ITEMS)
-                break;
-            continue;
-        }
-        if (!IsWintunAdapter(DeviceInfoSet, &DeviceInfo))
-            continue;
-
-        Logger(LOG_INFO, TEXT("Force closing all open handles for existing adapter"));
-        if (!ForceCloseWintunAdapterHandle(DeviceInfoSet, &DeviceInfo))
-            PrintError(LOG_WARN, TEXT("Failed to force close adapter handles"));
-        Sleep(200);
-
-        Logger(LOG_INFO, TEXT("Removing existing adapter"));
-        if (!SetupDiSetClassInstallParams(DeviceInfoSet, &DeviceInfo, &Params.ClassInstallHeader, sizeof(Params)) ||
-            !SetupDiCallClassInstaller(DIF_REMOVE, DeviceInfoSet, &DeviceInfo))
-        {
-            PrintError(LOG_WARN, TEXT("Unable to remove existing adapter"));
-            LastError = LastError ? LastError : GetLastError();
-            Ret = FALSE;
-        }
-    }
-    SetLastError(LastError);
-    return Ret;
-}
-
-static BOOL
-EnableWintunAdapters(_In_ HDEVINFO DeviceInfoSet, _In_ SP_DEVINFO_DATA_LIST *AdaptersToEnable)
-{
-    SP_PROPCHANGE_PARAMS Params = { .ClassInstallHeader = { .cbSize = sizeof(SP_CLASSINSTALL_HEADER),
-                                                            .InstallFunction = DIF_PROPERTYCHANGE },
-                                    .StateChange = DICS_ENABLE,
-                                    .Scope = DICS_FLAG_GLOBAL };
-    BOOL Ret = TRUE;
-    DWORD LastError = ERROR_SUCCESS;
-
-    for (SP_DEVINFO_DATA_LIST *DeviceNode = AdaptersToEnable; DeviceNode; DeviceNode = DeviceNode->Next)
-    {
-        Logger(LOG_INFO, TEXT("Enabling existing adapter"));
-        if (!SetupDiSetClassInstallParams(
-                DeviceInfoSet, &DeviceNode->Data, &Params.ClassInstallHeader, sizeof(Params)) ||
-            !SetupDiCallClassInstaller(DIF_PROPERTYCHANGE, DeviceInfoSet, &DeviceNode->Data))
-        {
-            LastError = LastError ? LastError : GetLastError();
-            PrintError(LOG_WARN, TEXT("Unable to enable existing adapter"));
-            Ret = FALSE;
-        }
-    }
-    SetLastError(LastError);
-    return Ret;
-}
-
-BOOL InstallOrUpdate(VOID)
-{
-    BOOL Ret = FALSE;
-    HDEVINFO DeviceInfoSet = SetupDiGetClassDevsEx(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
-    if (DeviceInfoSet == INVALID_HANDLE_VALUE)
-    {
-        PrintError(LOG_ERR, TEXT("Failed to get present class devices"));
-        return FALSE;
-    }
-    SP_DEVINFO_DATA_LIST *ExistingAdapters = NULL;
-    if (IsWintunLoaded())
-    {
-        DisableWintunAdapters(DeviceInfoSet, &ExistingAdapters);
-        Logger(LOG_INFO, TEXT("Waiting for driver to unload from kernel"));
-        if (!EnsureWintunUnloaded())
-            Logger(LOG_WARN, TEXT("Unable to unload driver, which means a reboot will likely be required"));
-    }
-    if (!RemoveWintun())
-    {
-        PrintError(LOG_ERR, TEXT("Failed to uninstall old drivers"));
-        goto cleanupAdapters;
-    }
-    if (!InstallWintun(!!ExistingAdapters))
-    {
-        PrintError(LOG_ERR, TEXT("Failed to install driver"));
-        goto cleanupAdapters;
-    }
-    Logger(LOG_INFO, TEXT("Installation successful"));
-    Ret = TRUE;
-
-cleanupAdapters:
-    if (ExistingAdapters)
-    {
-        EnableWintunAdapters(DeviceInfoSet, ExistingAdapters);
-        while (ExistingAdapters)
-        {
-            SP_DEVINFO_DATA_LIST *Next = ExistingAdapters->Next;
-            free(ExistingAdapters);
-            ExistingAdapters = Next;
-        }
-    }
-    SetupDiDestroyDeviceInfoList(DeviceInfoSet);
-    return Ret;
-}
-
-BOOL Uninstall(VOID)
-{
-    HDEVINFO DeviceInfoSet = SetupDiGetClassDevsEx(&GUID_DEVCLASS_NET, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
-    if (DeviceInfoSet == INVALID_HANDLE_VALUE)
-    {
-        PrintError(LOG_ERR, TEXT("Failed to get present class devices"));
-        return FALSE;
-    }
-    RemoveWintunAdapters(DeviceInfoSet);
-    BOOL Ret = RemoveWintun();
-    if (!Ret)
-        PrintError(LOG_ERR, TEXT("Failed to uninstall driver"));
-    else
-        Logger(LOG_INFO, TEXT("Uninstallation successful"));
-    return Ret;
-}
-
-BOOL APIENTRY
-DllMain(_In_ HINSTANCE hinstDLL, _In_ DWORD fdwReason, _In_ LPVOID lpvReserved)
-{
-    switch (fdwReason)
-    {
-    case DLL_PROCESS_ATTACH:
-        ResourceModule = hinstDLL;
-    case DLL_THREAD_ATTACH:
-    case DLL_THREAD_DETACH:
-    case DLL_PROCESS_DETACH:
-        break;
-    }
-    return TRUE;
-}