Re: [PATCH v1 4/8] LSM: Maintain a table of LSM attribute data

Paul Moore
2022-11-09T23:34:40Z

On Wed, Oct 26, 2022 at 8:38 PM Casey Schaufler <casey@schaufler-ca.com> wrote:
> On 10/25/2022 11:00 PM, Greg KH wrote:
> > On Tue, Oct 25, 2022 at 11:45:15AM -0700, Casey Schaufler wrote:
> >> As LSMs are registered add their lsm_id pointers to a table.
> >> This will be used later for attribute reporting.
> >>
> >> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
> >> ---
> >> include/linux/security.h | 17 +++++++++++++++++
> >> security/security.c | 18 ++++++++++++++++++
> >> 2 files changed, 35 insertions(+)
> >>
> >> diff --git a/include/linux/security.h b/include/linux/security.h
> >> index ca1b7109c0db..e1678594d983 100644
> >> --- a/include/linux/security.h
> >> +++ b/include/linux/security.h
> >> @@ -138,6 +138,23 @@ enum lockdown_reason {
> >>
> >> extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
> >>
> >> +#define LSMID_ENTRIES ( \
> >> + 1 + /* capabilities */ \
> > No #define for capabilities?
>
> Nope. There isn't one. CONFIG_SECURITY takes care of it.

I guess we might as well use the existing pattern just in case this
header ever gets pulled into somewhere unexpected.

(IS_ENABLED(CONFIG_SECURITY) ? 1 : 0) + ...

--
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