NEX-15279 support NFS server in zone
NEX-15520 online NFS shares cause zoneadm halt to hang in nfs_export_zone_fini
Portions contributed by: Dan Kruchinin dan.kruchinin@nexenta.com
Portions contributed by: Stepan Zastupov stepan.zastupov@gmail.com
Reviewed by: Joyce McIntosh <joyce.mcintosh@nexenta.com>
Reviewed by: Rob Gittins <rob.gittins@nexenta.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
OS-20 share_nfs(1m) charset handling is unreliable
OS-22 Page fault at nfscmd_dropped_entrysize+0x1e()
OS-23 NFSv2/3/4: READDIR responses are inconsistent when charset conversion fails
OS-24 rfs3_readdir(): Issues related to nfscmd_convdirent()
Reviewed by: Jan Kryl <jan.kryl@nexenta.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>

*** 16,33 ****
--- 16,38 ----
   * fields enclosed by brackets "[]" replaced with your own identifying
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
+ 
  /*
   * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  /*        All Rights Reserved   */
  
+ /*
+  * Copyright 2018 Nexenta Systems, Inc.
+  */
+ 
  #ifndef _NFS_CMD_H
  #define _NFS_CMD_H
  
  #ifdef  __cplusplus
  extern "C" {
*** 78,93 ****
  extern int nfscmd_send(nfscmd_arg_t *, nfscmd_res_t *);
  extern struct charset_cache *nfscmd_findmap(struct exportinfo *,
      struct sockaddr *);
  extern char *nfscmd_convname(struct sockaddr *, struct exportinfo *,
      char *, int, size_t);
! extern char *nfscmd_convdirent(struct sockaddr *, struct exportinfo *, char *,
!     size_t, enum nfsstat3 *);
! extern size_t nfscmd_convdirplus(struct sockaddr *, struct exportinfo *, char *,
!     size_t, size_t, char **);
! extern size_t nfscmd_countents(char *, size_t);
! extern size_t nfscmd_dropped_entrysize(struct dirent64 *, size_t, size_t);
  
  #endif
  
  #ifdef  __cplusplus
  }
--- 83,94 ----
  extern int nfscmd_send(nfscmd_arg_t *, nfscmd_res_t *);
  extern struct charset_cache *nfscmd_findmap(struct exportinfo *,
      struct sockaddr *);
  extern char *nfscmd_convname(struct sockaddr *, struct exportinfo *,
      char *, int, size_t);
! extern void nfscmd_init(void);
! extern void nfscmd_fini(void);
  
  #endif
  
  #ifdef  __cplusplus
  }