[Samba] detailed file permissions

[Thierry ITTY]

hello 

I have several linux samba servers (mainly 2.2.8) which I'm very satisfied of

I'm asked to set NT-like permissions on some files or directories, such as
: explicit delete permission, explicit create permission (for example we
want to allow users to update files but not to create new ones or delete
existing ones)

I think posix ACLs don't provide this, and I didn't find any kind of
mapping. Is this possible with latest versions (samba 3) ?

tia

Thierry