The case of a rather odd byte sequence (nsslapd-referral)
Hello all,
I've been using OpenLDAP to talk to Fedora DS, and my bindings
weren't working! This was quite vexing, so I did some investigation.
I finally pinpointed the error to ldap_get_values_len() returning
a NULL pointer for nsslapd-referral, with no error code.
Sounds sort of like a bug in OpenLDAP, no? Yes it does, but it's a bug
that's only tickled in very strange circumstances. If you use ldapvi,
well, that links to OpenLDAP, but it ignores NULLs so that's why you
never see a nsslapd-referral in your cn=config entry.
I made a dump of the buffer that OpenLDAP was parsing values out
of (I think this was what was transmitted over the network.)
Exhibit A (byte sequence containing nsslapd-referral):
0<14><04><10>nsslapd-referral1<00>0<19><04><12>
Exhibit B (byte sequence containing nsslapd-localhost):
As you can see, the byte sequence for nsslapd-referral appears to have
no textual data associated with it. What's up with that?
Edward
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10-18-2010, 02:35 PM
"Edward Z. Yang"
The case of a rather odd byte sequence (nsslapd-referral)
Howard responded to the OpenLDAP list with this:
> But it's certainly stupid for the server to attach the attribute to the
> response with no values, since this is obviously NOT an attrsOnly search
> response. Sounds like you ought to file a bug report against the Fedora
> Directory Server. [1]
Cheers,
Edward
[1] http://www.openldap.org/lists/openldap-technical/201010/msg00123.html
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10-18-2010, 05:47 PM
"Edward Z. Yang"
The case of a rather odd byte sequence (nsslapd-referral)
P.S. Boy, I'm submitting a lot of bug reports these days! Sorry
'bout that :-)
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10-18-2010, 06:01 PM
Rich Megginson
The case of a rather odd byte sequence (nsslapd-referral)
Edward Z. Yang wrote:
> Done. https://bugzilla.redhat.com/show_bug.cgi?id=643979
>
> Cheers,
> Edward
>
> P.S. Boy, I'm submitting a lot of bug reports these days! Sorry
> 'bout that :-)
>
We are grateful for your bug reports. Keep them coming!
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The case of a rather odd byte sequence (nsslapd-referral)
