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

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Message-ID: <CAEjxPJ7_CMFvRHFp1HVV+ppZEXPkWG6oH1MMEbjFESH44wZukg@mail.gmail.com>
Date:   Thu, 7 Sep 2023 13:42:07 -0400
From:   Stephen Smalley <stephen.smalley.work@...il.com>
To:     Christian Göttsche <cgzones@...glemail.com>
Cc:     selinux@...r.kernel.org, Paul Moore <paul@...l-moore.com>,
        Eric Paris <eparis@...isplace.org>,
        Ondrej Mosnacek <omosnace@...hat.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] selinux: dump statistics for more hash tables

On Fri, Aug 18, 2023 at 11:12 AM Christian Göttsche
<cgzones@...glemail.com> 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@...glemail.com>
> ---

> 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?