Re: [RFC PATCH v2 05/27] setfiles: do not issue AUDIT_FS_RELABEL on dry run

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On Mon, Aug 14, 2023 at 9:41 AM Christian Göttsche
<cgzones@xxxxxxxxxxxxxx> wrote:
>
> Do not issue an audit event of type AUDIT_FS_RELABEL in case of a
> passive check.
>
> Print the reason for an audit_open(3) failure.
>
> Do not prematurely exit in case audit_open(3) fails, since all important
> work is already done, but proceed with cleanup tasks.
>
> Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>

Acked-by: James Carter <jwcart2@xxxxxxxxx>

> ---
>  policycoreutils/setfiles/setfiles.c | 16 +++++++---------
>  1 file changed, 7 insertions(+), 9 deletions(-)
>
> diff --git a/policycoreutils/setfiles/setfiles.c b/policycoreutils/setfiles/setfiles.c
> index 4dd0d0dc..88a27241 100644
> --- a/policycoreutils/setfiles/setfiles.c
> +++ b/policycoreutils/setfiles/setfiles.c
> @@ -86,23 +86,20 @@ static int canoncon(char **contextp)
>  }
>
>  #ifndef USE_AUDIT
> -static void maybe_audit_mass_relabel(int mass_relabel __attribute__((unused)),
> -                               int mass_relabel_errs __attribute__((unused)))
> +static void audit_mass_relabel(int mass_relabel_errs __attribute__((unused)))
>  {
>  #else
> -static void maybe_audit_mass_relabel(int mass_relabel, int mass_relabel_errs)
> +static void audit_mass_relabel(int mass_relabel_errs)
>  {
>         int audit_fd = -1;
>         int rc = 0;
>
> -       if (!mass_relabel)              /* only audit a forced full relabel */
> -               return;
> -
>         audit_fd = audit_open();
>
>         if (audit_fd < 0) {
> -               fprintf(stderr, "Error connecting to audit system.\n");
> -               exit(-1);
> +               fprintf(stderr, "Error connecting to audit system: %s.\n",
> +                       strerror(errno));
> +               return;
>         }
>
>         rc = audit_log_user_message(audit_fd, AUDIT_FS_RELABEL,
> @@ -463,7 +460,8 @@ int main(int argc, char **argv)
>                                                &skipped_errors) < 0;
>         }
>
> -       maybe_audit_mass_relabel(r_opts.mass_relabel, errors);
> +       if (r_opts.mass_relabel && !r_opts.nochange)
> +               audit_mass_relabel(errors);
>
>         if (warn_no_match)
>                 selabel_stats(r_opts.hnd);
> --
> 2.40.1
>




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