Re: capable()-function

From: Chris Wright (chris@wirex.com)
Date: Wed Oct 09 2002 - 14:16:15 EST


* Tony Glader (Tony.Glader@blueberrysolutions.com) wrote:
> On Wed, 9 Oct 2002, Chris Wright wrote:
>
> > > In this case capable() call has been made from a kernel module. I think a
> > The userspace task that called the ioctl() is the one to look at.
>
> ...
>
> > > CapInh: 0000000000000000
> > > CapPrm: 00000000fffffeff
> > > CapEff: 00000000fffffeff
> >
> > Ok, I don't think the capable() check is failing.
>
> So though me too, but now we are getting to the point - capable() check
> fails! How that can be possible?

You could dump something like this before the capable() call:

printk(KERN_DEBUG "%s:(%d) eff: 0x%x\n", current->comm, current->pid,
                                                cap_t(current->cap_effective));
-chris

-- 
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