Goal

• The goal is that 389DS supports inChain Matching Rule

• • For example: As a LDAP client , I Want run a SEARCH with a filter like
    (member:1.2.840.113556.1.4.1941:=uid=foo,dc=com), so that the returned entries are all the groupOfNames groups that the user 'foo' is member of.
• The implementation should follow the design here
• The upstream ticket is 5989

Acceptance Criteria

• The inChain DS CI tests are successful