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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2021-05-11 19:43:34 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2021-05-11 19:43:34 +0200 |
| commit | 479bbdc50a45ca9ae62ac15a1ee7445a6cbbe42a (patch) | |
| tree | 008f6cf1b24248fd182276638098f4b70299eef7 /api | |
| parent | version: bump (diff) | |
| download | wintun-479bbdc50a45ca9ae62ac15a1ee7445a6cbbe42a.tar.xz wintun-479bbdc50a45ca9ae62ac15a1ee7445a6cbbe42a.zip | |
api: only mark GUID as in-use if Status != NotPresent
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'api')
| -rw-r--r-- | api/adapter.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/api/adapter.c b/api/adapter.c index 5cc0dad..c15a420 100644 --- a/api/adapter.c +++ b/api/adapter.c @@ -3,22 +3,13 @@ * Copyright (C) 2018-2021 WireGuard LLC. All Rights Reserved. */ -#include "adapter.h" -#include "elevate.h" -#include "entry.h" -#include "logger.h" -#include "namespace.h" -#include "nci.h" -#include "ntdll.h" -#include "registry.h" -#include "resource.h" -#include "wintun-inf.h" - +#include <WinSock2.h> #include <Windows.h> #include <winternl.h> #define _NTDEF_ /* TODO: figure out how to include ntsecapi and winternal together without requiring this */ #include <cfgmgr32.h> #include <devguid.h> +#include <ws2tcpip.h> #include <iphlpapi.h> #include <ndisguid.h> #include <NTSecAPI.h> @@ -28,6 +19,17 @@ #include <initguid.h> /* Keep these two at bottom in this order, so that we only generate extra GUIDs for devpkey. The other keys we'll get from uuid.lib like usual. */ #include <devpkey.h> +#include "adapter.h" +#include "elevate.h" +#include "entry.h" +#include "logger.h" +#include "namespace.h" +#include "nci.h" +#include "ntdll.h" +#include "registry.h" +#include "resource.h" +#include "wintun-inf.h" + #pragma warning(disable : 4221) /* nonstandard: address of automatic in initializer */ #define WAIT_FOR_REGISTRY_TIMEOUT 10000 /* ms */ @@ -1452,8 +1454,9 @@ static _Return_type_success_(return != NULL) WINTUN_ADAPTER *CreateAdapter( if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, RegPath, 0, KEY_QUERY_VALUE, &Key) == ERROR_SUCCESS) { RegCloseKey(Key); - NET_LUID Luid; - if (ConvertInterfaceGuidToLuid(RequestedGUID, &Luid) == NO_ERROR) + MIB_IF_ROW2 IfRow = { 0 }; + if (ConvertInterfaceGuidToLuid(RequestedGUID, &IfRow.InterfaceLuid) == NO_ERROR && + GetIfEntry2(&IfRow) == NO_ERROR && IfRow.OperStatus != IfOperStatusNotPresent) { SetLastError( LOG_ERROR(ERROR_ALREADY_EXISTS, L"Requested GUID is already in use: %s", RequestedGUIDStr)); |