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api: link to nci.dll at compile time

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Jason A. Donenfeld 2020-10-31 12:34:01 +01:00 committed by Simon Rozman
parent 42062fe554
commit 62f21f2fdd
6 changed files with 15 additions and 61 deletions
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9
api/api.vcxproj
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@ -114,9 +114,12 @@
<PreprocessorDefinitions Condition="'$(Platform)'=='ARM'">_M_ARM=7;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions Condition="'$(Platform)'=='ARM64'">_M_ARM64=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ResourceCompile>
<PreLinkEvent>
<Command>lib.exe /def:nci.def /out:"$(IntDir)nci.lib" /machine:$(PlatformTarget) /nologo</Command>
</PreLinkEvent>
<Link>
<DelayLoadDLLs>bcrypt.dll;iphlpapi.dll;newdev.dll;version.dll</DelayLoadDLLs>
<AdditionalDependencies>Bcrypt.lib;Crypt32.lib;Cfgmgr32.lib;Iphlpapi.lib;newdev.lib;ntdll.lib;Setupapi.lib;shlwapi.lib;version.lib;%(AdditionalDependencies)</AdditionalDependencies>
<DelayLoadDLLs>bcrypt.dll;iphlpapi.dll;nci.dll;newdev.dll;version.dll</DelayLoadDLLs>
<AdditionalDependencies>Bcrypt.lib;Crypt32.lib;Cfgmgr32.lib;Iphlpapi.lib;$(IntDir)nci.lib;newdev.lib;ntdll.lib;Setupapi.lib;shlwapi.lib;version.lib;%(AdditionalDependencies)</AdditionalDependencies>
<ModuleDefinitionFile>exports.def</ModuleDefinitionFile>
<SubSystem>Windows</SubSystem>
</Link>
@ -149,6 +152,7 @@
</ItemGroup>
<ItemGroup>
<None Include="exports.def" />
<None Include="nci.def" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="entry.h" />
@ -168,7 +172,6 @@
<ClCompile Include="elevate.c" />
<ClCompile Include="logger.c" />
<ClCompile Include="namespace.c" />
<ClCompile Include="nci.c" />
<ClCompile Include="registry.c" />
<ClCompile Include="resource.c" />
<ClCompile Include="session.c" />

6
api/api.vcxproj.filters
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@ -23,6 +23,9 @@
<None Include="exports.def">
<Filter>Source Files</Filter>
</None>
<None Include="nci.def">
<Filter>Source Files</Filter>
</None>
</ItemGroup>
<ItemGroup>
<ClInclude Include="nci.h">
@ -60,9 +63,6 @@
<ClCompile Include="namespace.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="nci.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="rundll32.c">
<Filter>Source Files</Filter>
</ClCompile>

4
api/entry.c
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@ -8,7 +8,6 @@
#include "logger.h"
#include "registry.h"
#include "namespace.h"
#include "nci.h"
#include "wintun.h"
#include <Windows.h>
@ -84,12 +83,9 @@ DllMain(_In_ HINSTANCE hinstDLL, _In_ DWORD fdwReason, _In_ LPVOID lpvReserved)
L"O:SYD:P(A;;GA;;;SY)", SDDL_REVISION_1, &SecurityAttributes.lpSecurityDescriptor, NULL);
AdapterInit();
NamespaceInit();
if (NciInit() != ERROR_SUCCESS)
return FALSE;
break;
case DLL_PROCESS_DETACH:
NciCleanup();
NamespaceCleanup();
LocalFree(SecurityAttributes.lpSecurityDescriptor);
HeapDestroy(ModuleHeap);

41
api/nci.c
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@ -1,41 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2018-2020 WireGuard LLC. All Rights Reserved.
*/
#include "nci.h"
#include <Windows.h>
static HMODULE NciModule;
DWORD(WINAPI *NciSetConnectionName)(_In_ const GUID *Guid, _In_z_ const WCHAR *NewName);
DWORD(WINAPI *NciGetConnectionName)
(_In_ const GUID *Guid,
_Out_z_bytecap_(InDestNameBytes) WCHAR *Name,
_In_ DWORD InDestNameBytes,
_Out_opt_ DWORD *OutDestNameBytes);
WINTUN_STATUS
NciInit(void)
{
NciModule = LoadLibraryExW(L"nci.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32);
if (!NciModule)
return GetLastError();
NciSetConnectionName =
(DWORD(WINAPI *)(const GUID *, const WCHAR *))GetProcAddress(NciModule, "NciSetConnectionName");
if (!NciSetConnectionName)
return GetLastError();
NciGetConnectionName =
(DWORD(WINAPI *)(const GUID *, WCHAR *, DWORD, DWORD *))GetProcAddress(NciModule, "NciGetConnectionName");
if (!NciGetConnectionName)
return GetLastError();
return ERROR_SUCCESS;
}
void
NciCleanup(void)
{
if (NciModule)
FreeLibrary(NciModule);
}

3
api/nci.def Normal file
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@ -0,0 +1,3 @@
EXPORTS
NciGetConnectionName
NciSetConnectionName

11
api/nci.h
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@ -5,19 +5,12 @@
#pragma once
#include "wintun.h"
#include <Windows.h>
extern DWORD(WINAPI *NciSetConnectionName)(_In_ const GUID *Guid, _In_z_ const WCHAR *NewName);
extern DWORD WINAPI NciSetConnectionName(_In_ const GUID *Guid, _In_z_ const WCHAR *NewName);
extern DWORD(WINAPI *NciGetConnectionName)(
extern DWORD WINAPI NciGetConnectionName(
_In_ const GUID *Guid,
_Out_z_bytecap_(InDestNameBytes) WCHAR *Name,
_In_ DWORD InDestNameBytes,
_Out_opt_ DWORD *OutDestNameBytes);
WINTUN_STATUS
NciInit(void);
void
NciCleanup(void);