ipasam: allow search of users by user principal name (UPN)
lookup_name() in Samba may call PASSDB API to search by a UPN (e.g.
username@suffix). Support this call by detecting '@' in the passed name
and setting up filter to be
(&(objectClass=ipaNTUserAttrs)(objectClass=krbPrincipalAux)(krbPrincipalName:caseIgnoreIA5Match:=%s))
instead of
(&(objectClass=ipaNTUserAttrs)(uid=%s))
The result of the search would still contain a proper user entry as we
always have krbPrincipalName in LDAP entries of IPA users. Note that the
match must be case-insensitive because otherwise krbPrincipalName is
matched with exact case in the schema. We use the same matching override
in KDB driver already.
Fixes: https://pagure.io/freeipa/issue/8661
Signed-of-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>