auth_log: Split up auth/authz logging levels and handle anonymous better
We typically do not want a lot of logging of anonymous access, as this is often
simple a preperation for authenticated access, so we make that level 5.
Bad passwords remain at level 2, successful password authentication is level 3
and successful authorization (eg kerberos login to SMB) is level 4.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-Programmed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>