auth/ntlmssp: implement GENSEC_FEATURE_LDAP_STYLE
We need to handle NTLMSSP_NEGOTIATE_SIGN as
NTLMSSP_NEGOTIATE_SEAL if GENSEC_FEATURE_LDAP_STYLE
is requested.
This works arround a bug in Windows, which allow signed only
messages using NTLMSSP and LDAP.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11804
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
(cherry picked from commit
f3dbe19e14eaf7a462f14485c6a9138a7348db2e)