Re: [v9.1] sepgsql - userspace access vector cache
От | Kohei Kaigai |
---|---|
Тема | Re: [v9.1] sepgsql - userspace access vector cache |
Дата | |
Msg-id | D0C1A1F8BF513F469926E6C71461D9EC05219F@EX10MBX02.EU.NEC.COM обсуждение исходный текст |
Ответ на | Re: [v9.1] sepgsql - userspace access vector cache (Robert Haas <robertmhaas@gmail.com>) |
Список | pgsql-hackers |
> On Fri, Aug 26, 2011 at 5:32 AM, Kohei KaiGai <kaigai@kaigai.gr.jp> wrote: > > Yes. It also caches an expected security label when a client being > > labeled as "scontext" tries to execute a procedure being labeled as > > "tcontext", to reduce number of system call invocations on fmgr_hook > > and needs_fmgr_hook. > > If the expected security label is not same with "scontext", it means > > the procedure performs as a trusted procedure that switches security > > label of the client during its execution; like a security invoker > > function. > > A pair of security labels are the only factor to determine whether the > > procedure is a trusted-procedure, or not. Thus, it is suitable to > > cache in userspace avc. > > I've committed this, but I still think it would be helpful to revise > that comment. The turn "boosted up" is not very precise or > informative. Could you submit a separate, comment-only patch to > improve this? > OK, Please wait for a few days. Thanks, -- NEC Europe Ltd, SAP Global Competence Center KaiGai Kohei <kohei.kaigai@emea.nec.com>
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