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Bugtraq archives for 1st quarter (Jan-Mar) 1995: Re: Disabling SunOS kernel module loading (Was: Re: Anti Hijacking tools)

Re: Disabling SunOS kernel module loading (Was: Re: Anti Hijacking tools)

Jeff Smith (Jeff.Smithdcs.warwick.ac.uk)
Thu, 9 Feb 1995 16:40:35 +0000 (GMT) 

> 
> On the subject of disabling kernel module loading on SunOS 4.1.x:
> several people asked me what the side effects of this might be. I
> researched it; and the answer appears to be that what the user gives
> up, so far as supported vendor software, is the ability to run
> OpenWindows with the "-nosunview" option.
> 
> That is, if you disable loadmodule, or modload, or the loading of
> modules, the kernel will not be able to load keyboard and mouse
> drivers on the fly that the server usually relies on the sunview
> code to supply.

I don't understand this, perhaps because I'm not an OpenWindows user.
Are you saying that a subset of OpenWindows requires dynamic
device driver support, but the whole of it doesn't?

The real question is: can you link these drivers in in a permanent fashion
when you build your 4.1.X kernel, and then disable all dynamic loading
and unloading, or does the act of loading/unloading these particular
drivers have an active side-effect that means you can't do this?

--
Jeff Smith, Computer Science, Warwick University, Coventry, CV4 7AL, England
jeffdcs.warwick.ac.uk	phone: +44 203 523485	fax: +44 203 525714