cinder: a member of a uer in any tenant can list and use all volume type created by admin user

I created several types with admin user, created tenants and user which is a member in one of the tenants that I created.
I logged in with the user I created and was able to list and use all types.

I can think of several reasons why we should not allow this, here are two from the top of my head:

1. if we simply manage groups in our company it may cause a problem if a volume created by someone in finance is tagged for someone in support.
2. if I use the type for customers name in a cloud, I may not want every one to see the customer names.

Version-Release number of selected component (if applicable):

openstack-cinder-2013.1.2-3.el6ost.noarch

How reproducible:

100%

Steps to Reproduce:
1. create a type as admin user
2. create a tenant with user which is member
3. log in as the user -> run: cinder type-list

Actual results:

we see all the types and can use them to create a volume

Expected results:

a user should only see types that are assigned to them

Additional info:

as admin:

[root@opens-vdsb ~(keystone_admin)]# cinder type-list
+--------------------------------------+--------+
| ID | Name |
+--------------------------------------+--------+
| 14587c80-c106-42c7-93ed-2ceaa98f8eae | bla |
| af06d9d6-23e1-4016-b5f9-ac5df4772c68 | blabla |
| bd842e99-fba0-4fb9-9f04-83ebed28aa59 | dafna |
| dd4c04ff-d3f5-4bba-92fa-c2d2cdc18660 | lvm |
+--------------------------------------+--------+

as user:

[dron@opens-vdsb ~(keystone_admin)]$ cinder type-list
+--------------------------------------+--------+
| ID | Name |
+--------------------------------------+--------+
| 14587c80-c106-42c7-93ed-2ceaa98f8eae | bla |
| af06d9d6-23e1-4016-b5f9-ac5df4772c68 | blabla |
| bd842e99-fba0-4fb9-9f04-83ebed28aa59 | dafna |
| dd4c04ff-d3f5-4bba-92fa-c2d2cdc18660 | lvm |
+--------------------------------------+--------+

create as user:

[dron@opens-vdsb ~(keystone_admin)]$ cinder create 10 --volume-type blabla
+---------------------+--------------------------------------+
| Property | Value |
+---------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| created_at | 2013-07-23T11:29:18.437476 |
| display_description | None |
| display_name | None |
| id | 5908f5ba-489a-4364-b280-346381cb3c2e |
| metadata | {} |
| size | 10 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| volume_type | blabla |
+---------------------+--------------------------------------+
[dron@opens-vdsb ~(keystone_admin)]$ cinder list
+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
| ID | Status | Display Name | Size | Volume Type | Bootable | Attached to |
+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+
| 13603de3-8435-4c37-9283-16a61c7bb4c7 | available | bla | 10 | bla | false | |
| 5908f5ba-489a-4364-b280-346381cb3c2e | available | None | 10 | blabla | false | |
| 5c066222-b8a9-4990-9d88-b1190aaf2d14 | available | None | 10 | blabla | false | |
| 68eca3bb-61d2-4031-bdeb-8eea28232dd8 | error | bbhb | 10 | dafna | false | |
| a597c6c3-3966-4675-94c2-00a335da2114 | available | bhbh | 10 | bla | false | |
+--------------------------------------+-----------+--------------+------+-------------+----------+-------------+