12513 SMB 3.1.1 support for server

@@ -9,11 +9,11 @@
  * http://www.illumos.org/license/CDDL.
  */
 
 /*
  * Copyright 2019 Nexenta Systems, Inc.  All rights reserved.
- * Copyright 2019 RackTop Systems.
+ * Copyright 2020 RackTop Systems, Inc.
  */
 
 
 #include <smbsrv/smb2_kproto.h>
 #include <smbsrv/smb_kstat.h>

@@ -971,10 +971,20 @@
         /*
          * Overwrite the (now final) SMB2 header for this response.
          */
         (void) smb2_encode_header(sr, B_TRUE);
 
+        /*
+         * Cannot move this into smb2_session_setup() - encoded header required.
+         */
+        if (session->dialect >= SMB_VERS_3_11 &&
+            sr->smb2_cmd_code == SMB2_SESSION_SETUP &&
+            sr->smb2_status == NT_STATUS_MORE_PROCESSING_REQUIRED) {
+                (void) smb31_preauth_sha512_calc(sr, &sr->reply,
+                    session->smb31_preauth_hashval);
+        }
+
         /* Don't sign if we're going to encrypt */
         if (sr->tform_ssn == NULL &&
             (sr->smb2_hdr_flags & SMB2_FLAGS_SIGNED) != 0)
                 smb2_sign_reply(sr);