[openstack-dev] [keystone] Liberty - problem with assignment LDAP backend - Groups
Dmitry Sutyagin
dsutyagin at mirantis.com
Thu Apr 21 01:10:11 UTC 2016
Another correction - the issue is observed in Kilo, not Liberty, sorry for
messing this up. (though this part of the code is identical in L)
On Wed, Apr 20, 2016 at 5:50 PM, Dmitry Sutyagin <dsutyagin at mirantis.com>
wrote:
> Correction:
>
> group_dns = [u'CN=GroupX,OU=Groups,OU=SomeOU,DC=zzz']
> ra.user_dn.upper() = 'CN=GROUPX,OU=GROUPS,OU=SOMEOU,DC=ZZZ'
>
> So this could work if only:
> - string in group_dns was str, not unicode
> - text was uppercase
>
> Now the question is - should it be so?
>
> On Wed, Apr 20, 2016 at 5:41 PM, Dmitry Sutyagin <dsutyagin at mirantis.com>
> wrote:
>
>> Hi everybody,
>>
>> I am observing the following issue:
>>
>> LDAP backend is enabled for identity and assignment, domain specific
>> configs disabled.
>> LDAP section configured - users, groups, projects and roles are mapped.
>> I am able to use identity v3 api to list users, groups, to verify that a
>> user is in a group, and also to view role assignments - everythings looks
>> correct so far.
>> I am able to create a role for user in LDAP and if I put a user directly
>> into a role, everything works.
>> But when I put a group (which contains that user) into a role - the user
>> get's 401.
>>
>> I have found a spot in the code which causes the issue:
>>
>>
>> https://github.com/openstack/keystone/blob/stable/liberty/keystone/assignment/backends/ldap.py#L67
>>
>> This check returns False, here is why:
>> ===============================================
>> group_dns = ['cn=GroupX,ou=Groups,ou=YYY,dc=...']
>> role_assignment.user_dn = 'cn=UserX,ou=Users,ou=YYY,dc=...'
>> ===============================================
>>
>> Therefore the check:
>> ====================================
>> if role_assignment.user_dn.upper() in group_dns
>> ====================================
>> Will return false. I do not understand how this should work - why should
>> user_dn match group_dn?
>>
>> --
>> Yours sincerely,
>> Dmitry Sutyagin
>> OpenStack Escalations Engineer
>> Mirantis, Inc.
>>
>
>
>
> --
> Yours sincerely,
> Dmitry Sutyagin
> OpenStack Escalations Engineer
> Mirantis, Inc.
>
--
Yours sincerely,
Dmitry Sutyagin
OpenStack Escalations Engineer
Mirantis, Inc.
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