[SSSD] [PATCH] CIFS idmap Plugin using SSSD

Sumit Bose sbose at redhat.com
Mon Oct 14 08:26:30 UTC 2013


On Fri, Oct 11, 2013 at 05:08:17PM -0400, Dmitri Pal wrote:
> On 10/11/2013 07:47 AM, Sumit Bose wrote:
> > On Fri, Oct 11, 2013 at 12:53:48PM +0200, Benjamin Franzke wrote:
> >> 2013/10/11 Sumit Bose <sbose at redhat.com>
> >>
> >>> On Thu, Oct 10, 2013 at 02:41:54PM +0200, Benjamin Franzke wrote:
> >>>> Thanks for your review!
> >>>>
> >>> <snip>
> >>>> The patch with your concers fixed is attached.
> >>> Thank you for the new version. I only have two comments left:
> >>>
> >>> +    if (handle == NULL || errmsg == NULL) {
> >>> +        *errmsg = strerror(EINVAL);
> >>>
> >>> you cannot return an error message if errmsg == NULL.
> >>>
> >> yes, of course not :)
> >> had to leave house and wanted to get the patch out before, that dumb
> >> mistake was the result :\
> >>
> >>> +        return -EINVAL;
> 
> 
> 
> Why -EINVAL?
> I do not remember us turning errors into negative numbers.
> Is this a convention that I missed?
> 

Since this is a plugin for an external application we have to use the
conventions of the external application here. But as Benjamin already
pointed out cifs-utils are only expecting a non-zero exit code on
errors. So we are free to choose the sign of the error codes. I agree
that in this case it helps to avoid confusion to use the SSSD
convention.

bye,
Sumit
> 
> 
> >>> +    }
> >>>
> >>>
> >>> +    err = sss_nss_getsidbyname(name, &sid, &id_type);
> >>> +    if (err != 0)  {
> >>> +        /* Might be a raw string representation of SID,
> >>> +         * try converting that before returning an error. */
> >>> +        if (sid_to_cifs_sid(ctx, name, csid) == 0)
> >>> +            return 0;
> >>> +
> >>>
> >>>  ^^^^^^^^ trailing whitespace
> >>>
> >>> Oops, again.. have them highlighted in my editor now ;)
> >>> +        ctx_set_error(ctx, strerror(err));
> >>> +        return -err;
> >>> +    }
> >>>
> >>>
> >>> bye,
> >>> Sumit
> >>>
> >> New patch attached, with these two things fixed.
> > Code looks good, tests are working as expected, ACK.
> >
> > bye,
> > Sumit
> >
> > _______________________________________________
> > sssd-devel mailing list
> > sssd-devel at lists.fedorahosted.org
> > https://lists.fedorahosted.org/mailman/listinfo/sssd-devel
> 
> 
> -- 
> Thank you,
> Dmitri Pal
> 
> Sr. Engineering Manager for IdM portfolio
> Red Hat Inc.
> 
> 
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> 
> 
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