Re: [PATCH 2/6] selinux: dump statistics for more hash tables

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On Thu, Sep 7, 2023 at 1:42 PM Stephen Smalley
<stephen.smalley.work@xxxxxxxxx> wrote:
> On Fri, Aug 18, 2023 at 11:12 AM Christian Göttsche
> <cgzones@xxxxxxxxxxxxxx> wrote:
> >
> > Dump in the SELinux debug configuration the statistics for the
> > conditional rules avtab, the role transition, and class and common
> > permission hash tables.
> >
> > Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
> > ---
>
> > diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
> > index 84f02d4f8093..932e383bcad6 100644
> > --- a/security/selinux/ss/policydb.c
> > +++ b/security/selinux/ss/policydb.c
> > @@ -1158,6 +1158,8 @@ static int common_read(struct policydb *p, struct symtab *s, void *fp)
> >                         goto bad;
> >         }
> >
> > +       hash_eval(&comdatum->permissions.table, "common_permissions");
> > +
> >         rc = symtab_insert(s, key, comdatum);
> >         if (rc)
> >                 goto bad;
> > @@ -1339,6 +1341,8 @@ static int class_read(struct policydb *p, struct symtab *s, void *fp)
> >                         goto bad;
> >         }
> >
> > +       hash_eval(&cladatum->permissions.table, "class_permissions");
> > +
> >         rc = read_cons_helper(p, &cladatum->constraints, ncons, 0, fp);
> >         if (rc)
> >                 goto bad;
>
> Do we want to embed the actual common and class keys in the output to
> distinguish among the multiple common and class permissions tables?

That seems reasonable, were you thinking of just adding it to the
hash_eval()'s hash name string, e.g. "common_permissions[XXX]"?

-- 
paul-moore.com




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