On 07/08/2009 22:36, Jittinan Suwanrueangsri wrote:

Hi all

I have tested acl of OpenLdap 2.4 by using following code in slapd.conf

access to dn.subtree="ou=System,dc=example,dc=com" by group/groupOfUniqueNames/uniqueMember.regex="cn=[^,]+,ou=Groups,dc=example,dc=com" write by users read

In my directory there is a dn: cn=LdapAdmins,ou=Groups,dc=example,dc=com but from log message which is shown below a dn does not match pattern cn=[^,]+,ou=Groups,dc=example,dc=com because it get read permission.After that I change acl to

access to dn.subtree="ou=System,dc=example,dc=com" by group/groupOfUniqueNames/uniqueMember.regex="cn=LdapAdmins,ou=Groups,dc=example,dc=com" write by users read

It work correctly by get write permission

Because I use group/groupOfUniqueNames/uniqueMember.regex .It should treat "cn=[^,]+,ou=Groups,dc=example,dc=com" as regular expression pattern but seem that it just exact pattern.Why? Who can explain?

According to slapd.access(5), regex expansion is not supported for the group clause in ACLs.

Only submatch replacement is possible.

To implement this access policy, you may want to check out sets. See http://www.openldap.org/faq/data/cache/1133.html

Regards, Jonathan

Log level 128

=> access_allowed: read access to "uid=authenticate,ou=System,dc=example,dc=com" "objectClass" requested => dn: [2] ou=system,dc=example,dc=com => acl_get: [2] matched => acl_get: [2] attr objectClass => slap_access_allowed: result not in cache (objectClass) => acl_mask: access to entry "uid=authenticate,ou=System,dc=example,dc=com", attr "objectClass" requested => acl_mask: to value by "uid=matt,ou=users,dc=example,dc=com", (=0) <= check a_group_pat: cn=[^,]+,ou=Groups,dc=example,dc=com /=> acl_string_expand: pattern: cn=[^,]+,ou=Groups,dc=example,dc=com => acl_string_expand: expanded: cn=[^,]+,ou=Groups,dc=example,dc=com/ <= check a_dn_pat: users <= acl_mask: [2] applying read(=rscxd) (stop) <= acl_mask: [2] mask: read(=rscxd) => slap_access_allowed: read access granted by read(=rscxd) => access_allowed: read access granted by read(=rscxd)