Messages in this thread | | | Date | Wed, 17 Oct 2007 21:59:20 -0500 | From | "Serge E. Hallyn" <> | Subject | Re: [RFC] [PATCH 2/2] capabilities: implement 64-bit capabilities |
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Quoting Andrew Morton (akpm@linux-foundation.org): > On Tue, 16 Oct 2007 16:41:59 -0500 > "Serge E. Hallyn" <serue@us.ibm.com> wrote: > > > To properly test this the libcap code will need to be updated first, > > which I'm looking at now... > > This seems fairly significant. I asusme that this patch won't break > presently-deployed libcap?
It will break libcap. And I'm not sure of the right way to address it. So I was hoping to hear some ideas from Andrew Morgan, Chris Wright, and Kaigai.
We can introduce new capget64() and capset64() calls, and have capget() return -EINVAL or -EAGAIN if a high bit would be needed to accurately get the task's capabilities.
Or we can require a new libcap, since capget and capset aren't required for most day-to-day function anyway.
I guess now that I've written this out, it seems pretty clear that capget64() and capget64() are the way to go. Any objections?
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