[Openib-windows] Running WSD from as a non-administrator

[Fabian Tillier]

Hi Tzachi,

I saw some intermittent failures, where IBAT IOCTL requests where
failing.  I was unable to figure out what was causing it, but had a
question about the changes in this patch.

On 7/30/06, Tzachi Dar <tzachid at mellanox.co.il> wrote:
> Index: ulp/wsd/user/ibsp_ip.c
> ===================================================================
> --- ulp/wsd/user/ibsp_ip.c (revision 420)
> +++ ulp/wsd/user/ibsp_ip.c (working copy)
> @@ -96,7 +96,7 @@
>   if( g_ibsp.h_ibat_dev == INVALID_HANDLE_VALUE )
>   {
>    g_ibsp.h_ibat_dev = CreateFileW( IBAT_WIN32_NAME,
> -   GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
> +   MAXIMUM_ALLOWED, 0, NULL,

Why did you change the share disposition from shared read/write access
to no sharing?  Wouldn't this cause only a single application to be
able to open the device?  The change from GENERIC_READ to
MAXIMUM_ALLOWED is granting more rights, but the share disposition is
granting fewer.

Is there any reason not to allow shared access?  Or is it because the
IOCTL path is neither READ nor WRITE?

Thanks,

- Fab