NEX-16824 SMB client connection setup rework
NEX-17232 SMB client reconnect failures
Reviewed by: Evan Layton <evan.layton@nexenta.com>
Reviewed by: Matt Barden <matt.barden@nexenta.com>
and: (improve debug)

*** 30,46 ****
   * SUCH DAMAGE.
   *
   * $Id: smb_trantcp.h,v 1.8 2004/08/03 23:50:01 lindak Exp $
   */
  /*
!  * Copyright 2012 Nexenta Systems, Inc.  All rights reserved.
   */
  #ifndef _NETSMB_SMB_TRANTCP_H_
  #define _NETSMB_SMB_TRANTCP_H_
  
  enum nbstate {
          NBST_CLOSED,
          NBST_RQSENT,
          NBST_SESSION,
          NBST_RETARGET,
          NBST_REFUSED
  };
--- 30,47 ----
   * SUCH DAMAGE.
   *
   * $Id: smb_trantcp.h,v 1.8 2004/08/03 23:50:01 lindak Exp $
   */
  /*
!  * Copyright 2018 Nexenta Systems, Inc.  All rights reserved.
   */
  #ifndef _NETSMB_SMB_TRANTCP_H_
  #define _NETSMB_SMB_TRANTCP_H_
  
  enum nbstate {
          NBST_CLOSED,
+         NBST_IDLE,
          NBST_RQSENT,
          NBST_SESSION,
          NBST_RETARGET,
          NBST_REFUSED
  };