Messages in this thread | | | Date | Fri, 18 May 2012 16:09:15 -0700 | Subject | Re: [PATCH] Trace event for capable(). | From | "Kok, Auke-jan H" <> |
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On Fri, May 18, 2012 at 3:33 PM, richard -rw- weinberger <richard.weinberger@gmail.com> wrote: > > On Thu, May 17, 2012 at 9:50 PM, Auke Kok <auke-jan.h.kok@intel.com> > wrote: > > Add a simple trace event for capable(). > > > > There's been a lot of discussion around capable(), and there > > are plenty of tools to help reduce capabilities' usage from > > userspace. A major gap however is that it's almost impossible > > to see or verify which bits are requested from either userspace > > or in the kernel. > > > > This patch adds a minimal tracer that will print out which > > CAPs are requested and whether the request was granted. > > Can we please have support for user namespaces? > At least idicate whether the current namespace is init_user_ns or not.
that was the main reason for sending this out already - that should be trivial to add to the trace event, but I haven't looked at namespaces yet myself. I'll check it out.
Auke
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