[wdmaudiodev] Re: Problem with test signed driver package
- From: "M'hand Boughias" <mhand@xxxxxxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Sun, 26 Sep 2010 12:13:04 +0200
http://msdn.microsoft.com/en-us/library/dd756608(VS.85).aspx
<http://msdn.microsoft.com/en-us/library/dd756608(VS.85).aspx>It seems that
APO need to be logo certified to run in PUMA
On Sat, Sep 25, 2010 at 10:25 PM, Paul Titchener <pt@xxxxxxxxxxx> wrote:
> (whoops, last email was accidentally sent before it was completed, sorry
> about that)
>
> I'm working on getting the sysfx sAPO example from the DDK to run.
>
> I've got it running now in non-secure mode, with this reg key set to
> specify the non-secure mode:
>
>
> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Audio
>
> "DisableProtectedAudioDG"=dword:00000001
> Now I need to get it functioning in secure mode without using that registry
> setting, so I followed the instructions here:
>
>
> http://msdn.microsoft.com/en-us/library/ff546236(v=VS.85).aspx
> These instructions describe "How to Test Sign a Driver Package". The
> instructions include an example script which I used as the starting point.
>
> First I created a certificate as shown below:
>
>
> Makecert -r -pe -ss PrivateCertStore -n "CN=TestCertforWDK" TestCert.cer
> Then I made a .cat file for the driver install .inf and .dll files:
>
>
> inf2cat /driver:sysfxAPO /os:7_X86
>
>
> Then I signed the .cat file and .dll files:
>
>
> SignTool sign /s PrivateCertStore sysfx.cat
>
> SignTool sign /s PrivateCertStore swapAPO.dll
>
> SignTool sign /s PrivateCertStore PropPageExt.dll
>
> Then I added the test certificate to the certificate store:
>
> certmgr.exe -add testcert.cer -s -r localMachine root
>
> certmgr.exe -add testcert.cer -s -r localMachine trustedpublisher
>
> After doing this, when installing the driver I do see less error messages
> relating to verfication occurring in the setupapi log files than prior to
> the signing.
>
> However, with the DisableProtectedAudioDG registry setting off, the
> swapAPO.dll is not getting called during the audio processing, ie the
> processing isn't occuring.
>
> Turning that reg setting back on and rebooting makes the swapAPO.dll do the
> processing correctly.
>
> Also when you do a Properties->Driver->Driver Details on the installed swap
> driver, it shows all the expected installed dlls, but the swapAPO and
> PropPageExt dll don't have a certificate icon next to them, the other files
> shown do have the certificate, as do all the files for other audio drivers
> I've looked at.
>
> If you do Properties on the swapAPO and PropPageExt dll files themselves,
> it shows there is a Digital Signatures tab, and as expected is shows a
> signature list with TestCertforWDK as the name of the signer.
>
> One thing that's confusing to me though is none of the other installed dll
> files in the folder, which must signed correctly, even have a Digital
> Signatures tab.
>
> Does anyone have any suggestions on what additional steps I need to take to
> get these test signatures to function correctly?
>
> Thanks,
>
> Paul T.
>
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