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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2021-08-02 02:40:28 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2021-08-02 20:36:37 +0200 |
| commit | 3e70808fa197b928b7501218e0646b5dd6b8a25f (patch) | |
| tree | bd11008f1b74549eb87f358fb9c42ce1c2d9945b /downlevelshim | |
| parent | api: remove Authenticode support (diff) | |
| download | wireguard-nt-0.1.tar.xz wireguard-nt-0.1.zip | |
api: incorporate new win7 code signing technique0.1
https://git.zx2c4.com/downlevel-driver-enabler/about/
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'downlevelshim')
| -rw-r--r-- | downlevelshim/downlevelshim.vcxproj | 35 | ||||
| -rw-r--r-- | downlevelshim/exports.def | 3 | ||||
| -rw-r--r-- | downlevelshim/shim.c | 32 |
3 files changed, 70 insertions, 0 deletions
diff --git a/downlevelshim/downlevelshim.vcxproj b/downlevelshim/downlevelshim.vcxproj new file mode 100644 index 0000000..264a300 --- /dev/null +++ b/downlevelshim/downlevelshim.vcxproj @@ -0,0 +1,35 @@ +<?xml version="1.0" encoding="utf-8"?> +<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> + <PropertyGroup Label="Globals"> + <ProjectGuid>{E22CA58F-DEA5-48DC-BCF5-12075AD9BB82}</ProjectGuid> + <RootNamespace>downlevelshim</RootNamespace> + <ProjectName>downlevelshim</ProjectName> + </PropertyGroup> + <PropertyGroup Label="Configuration"> + <ConfigurationType>DynamicLibrary</ConfigurationType> + <PlatformToolset>WindowsApplicationForDrivers10.0</PlatformToolset> + </PropertyGroup> + <Import Project="..\wireguard-nt.props" /> + <PropertyGroup> + <TargetName>downlevelshim</TargetName> + </PropertyGroup> + <ItemDefinitionGroup> + <ClCompile> + <PreprocessorDefinitions>_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions> + <AdditionalOptions>/volatile:iso %(AdditionalOptions)</AdditionalOptions> + </ClCompile> + <Link> + <ModuleDefinitionFile>exports.def</ModuleDefinitionFile> + <SubSystem>Windows</SubSystem> + </Link> + </ItemDefinitionGroup> + <ItemGroup> + <None Include="exports.def" /> + </ItemGroup> + <ItemGroup> + <ClCompile Include="shim.c" /> + </ItemGroup> + <Import Project="..\wireguard-nt.props.user" Condition="exists('..\wireguard-nt.props.user')" /> + <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" /> + <ImportGroup Label="ExtensionTargets" /> +</Project> diff --git a/downlevelshim/exports.def b/downlevelshim/exports.def new file mode 100644 index 0000000..7d2ec36 --- /dev/null +++ b/downlevelshim/exports.def @@ -0,0 +1,3 @@ +LIBRARY downlevelshim.dll +EXPORTS + DriverFinalPolicy
\ No newline at end of file diff --git a/downlevelshim/shim.c b/downlevelshim/shim.c new file mode 100644 index 0000000..d277639 --- /dev/null +++ b/downlevelshim/shim.c @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (C) 2018-2021 WireGuard LLC. All Rights Reserved. + */ + +#include <windows.h> +#include <wintrust.h> + +typedef DWORD(DRIVER_FINAL_POLICY_FN)(CRYPT_PROVIDER_DATA *); +typedef DRIVER_FINAL_POLICY_FN *PDRIVER_FINAL_POLICY_FN; + +DRIVER_FINAL_POLICY_FN DriverFinalPolicy; + +DWORD +DriverFinalPolicy(CRYPT_PROVIDER_DATA *ProvData) +{ + DWORD OriginalLastError = GetLastError(); + HMODULE WintrustModule = GetModuleHandleA("WINTRUST.DLL"); + if (!WintrustModule) + return ERROR_INVALID_LIBRARY; + PDRIVER_FINAL_POLICY_FN RealDriverFinalPolicy = + (PDRIVER_FINAL_POLICY_FN)GetProcAddress(WintrustModule, "DriverFinalPolicy"); + if (!RealDriverFinalPolicy) + return ERROR_INVALID_FUNCTION; + DWORD Ret = RealDriverFinalPolicy(ProvData); + if (Ret == ERROR_APP_WRONG_OS) + { + Ret = ERROR_SUCCESS; + SetLastError(OriginalLastError); + } + return Ret; +} |