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Fixup for Automatically accept test-signed driver installation" #8

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Merged
marmarek merged 4 commits into from
Jul 10, 2025
Merged

Fixup for Automatically accept test-signed driver installation" #8

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0b6a52a
Automatically accept test-signed driver installation
omeg Jun 6, 2025
ab698e9
Preserve existing IHVDRIVER debug print filter value
omeg Jun 20, 2025
cc952f7
Merge remote-tracking branch 'origin/pr/6' into accept-drivers
marmarek Jul 9, 2025
e942eaf
Increase ApproveTestSign timeout to 3 minutes
marmarek Jul 9, 2025
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42 changes: 42 additions & 0 deletions src/install-helper/install-helper.c
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Original file line number Diff line number Diff line change
Expand Up @@ -127,8 +127,50 @@ DWORD StopXenbusMonitor()
return status;
}

/*
* Automatically accept the prompt for installing test-signed drivers.
*/
DWORD ApproveTestSign(void* param)
{
while (TRUE)
{
HWND window = FindWindow(NULL, L"Windows Security");
if (window)
{
DWORD fg_tid = GetWindowThreadProcessId(GetForegroundWindow(), NULL);
DWORD tid = GetCurrentThreadId();
// Without this, focus-stealing mitigations can prevent activating the target window.
if (tid != fg_tid)
AttachThreadInput(fg_tid, tid, TRUE);

BringWindowToTop(window);
ShowWindow(window, SW_SHOW);

while (GetForegroundWindow() != window)
Sleep(100);

INPUT inputs[2];
inputs[0].type = INPUT_KEYBOARD;
inputs[0].ki.wVk = 'i';
inputs[1].type = INPUT_KEYBOARD;
inputs[1].ki.dwFlags = KEYEVENTF_KEYUP;
inputs[1].ki.wVk = 'i';
SendInput(ARRAYSIZE(inputs), inputs, sizeof(INPUT));
break;
}
else
{
Sleep(100);
}
}
return 0;
}

int WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nShowCmd)
{
(void)AddSymlinkRightToUsers();
HANDLE thread = CreateThread(NULL, 0, ApproveTestSign, NULL, 0, NULL);
if (WaitForSingleObject(thread, 1800000) == WAIT_TIMEOUT)
TerminateThread(thread, 0);
return (int)StopXenbusMonitor();
}
23 changes: 19 additions & 4 deletions vs2022/installer/CoreComponents.wxs
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,15 @@
/>
</Property>

<Property Id="DPF_SET">
<RegistrySearch
Root="HKLM"
Key="SYSTEM\CurrentControlSet\Control\Session Manager\Debug Print Filter"
Name="IHVDRIVER"
Type="raw"
/>
</Property>

<ComponentGroup Id="CoreComponents">

<?if $(env.TEST_SIGN) ?>
Expand Down Expand Up @@ -132,6 +141,16 @@
</RegistryKey>
</Component>

<Component
Guid="{CD253E87-10A2-4BAA-AFA5-6AF0A87DCFAB}"
Id="DebugPrintFilter"
Condition="NOT DPF_SET"
Directory="INSTALL_DIR">
<RegistryKey Root="HKLM" Key="SYSTEM\CurrentControlSet\Control\Session Manager\Debug Print Filter">
<RegistryValue Name="IHVDRIVER" Type="integer" Value="3" />
</RegistryKey>
</Component>

<Component
Guid="{C824195C-F828-4FF5-BFCA-3143F0D89916}"
Id="SystemSettings"
Expand All @@ -144,10 +163,6 @@
</RegistryValue>
</RegistryKey>

<RegistryKey Root="HKLM" Key="SYSTEM\CurrentControlSet\Control\Session Manager\Debug Print Filter">
<RegistryValue Name="IHVDRIVER" Type="integer" Value="3" />
</RegistryKey>

<!-- Enable paths longer than MAX_PATH for FS APIs by default -->
<RegistryKey Root="HKLM" Key="SYSTEM\CurrentControlSet\Control\FileSystem">
<RegistryValue Name="LongPathsEnabled" Type="integer" Value="1" />
Expand Down