Re: Designated initializers, struct randomization and addressing?

From	Kees Cook <keescook@chromium.org>
Newsgroups	linux.kernel
Subject	Re: Designated initializers, struct randomization and addressing?
Date	2017-01-04 23:40 +0100
Message-ID	<sW2nT-2uu-9@gated-at.bofh.it> (permalink)
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On Wed, Jan 4, 2017 at 8:55 AM, Stephen Hemminger
<stephen@networkplumber.org> wrote:
> On Tue, 3 Jan 2017 22:35:26 -0800
> Kees Cook <keescook@chromium.org> wrote:
>
>> For randstruct and constify, the automatic selection is done on
>> structures with only function pointers. (Additional structures can be
>> added via a compiler attribute marking.)
>>
>> See is_pure_ops_struct():
>
> Is there anyway to use this plugin to identify pure_ops structures not already marked as const?

That's what the constify plugin does, yes. Though to deal with cases
where something rarely written to, the
pax_open_kernel/pax_close_kernel annotations are needed, which is why
I don't have a sane port of the constify plugin yet. We need to build
upstream-acceptable infrastructure for the write-rarely case. But, as
Julia replied, yes, there's a huge list. :)

-Kees

-- 
Kees Cook
Nexus Security

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Re: Designated initializers, struct randomization and addressing? Kees Cook <keescook@chromium.org> - 2017-01-04 00:50 +0100
  Re: Designated initializers, struct randomization and addressing? Bruce Korb <bruce.korb@gmail.com> - 2017-01-04 01:00 +0100
    Re: Designated initializers, struct randomization and addressing? Kees Cook <keescook@chromium.org> - 2017-01-04 01:20 +0100
  Re: Designated initializers, struct randomization and addressing? Julia Lawall <julia.lawall@lip6.fr> - 2017-01-04 07:30 +0100
    Re: Designated initializers, struct randomization and addressing? Kees Cook <keescook@chromium.org> - 2017-01-04 07:40 +0100
      Re: Designated initializers, struct randomization and addressing? Stephen Hemminger <stephen@networkplumber.org> - 2017-01-04 18:00 +0100
        Re: Designated initializers, struct randomization and addressing? Julia Lawall <julia.lawall@lip6.fr> - 2017-01-04 18:40 +0100
        Re: Designated initializers, struct randomization and addressing? Kees Cook <keescook@chromium.org> - 2017-01-04 23:40 +0100

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