text: /*
   * include/linux/nfsd/export.h
   * 
   * Public declarations for NFS exports. The definitions for the
   * syscall interface are in nfsctl.h
   *
   * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
   */
  
  #ifndef NFSD_EXPORT_H
  #define NFSD_EXPORT_H
  
  # include <linux/types.h>
  
  /*
   * Important limits for the exports stuff.
   */
  #define NFSCLNT_IDMAX		1024
  #define NFSCLNT_ADDRMAX		16
  #define NFSCLNT_KEYMAX		32
  
  /*
   * Export flags.
   */
  #define NFSEXP_READONLY		0x0001
  #define NFSEXP_INSECURE_PORT	0x0002
  #define NFSEXP_ROOTSQUASH	0x0004
  #define NFSEXP_ALLSQUASH	0x0008
  #define NFSEXP_ASYNC		0x0010
  #define NFSEXP_GATHERED_WRITES	0x0020
  /* 40 80 100 currently unused */
  #define NFSEXP_NOHIDE		0x0200
  #define NFSEXP_NOSUBTREECHECK	0x0400
  #define	NFSEXP_NOAUTHNLM	0x0800		/* Don't authenticate NLM requests - just trust */
  #define NFSEXP_MSNFS		0x1000	/* do silly things that MS clients expect; no longer supported */
  #define NFSEXP_FSID		0x2000
  #define	NFSEXP_CROSSMOUNT	0x4000
  #define	NFSEXP_NOACL		0x8000	/* reserved for possible ACL related use */
  /*
   * The NFSEXP_V4ROOT flag causes the kernel to give access only to NFSv4
   * clients, and only to the single directory that is the root of the
   * export; further lookup and readdir operations are treated as if every
   * subdirectory was a mountpoint, and ignored if they are not themselves
   * exported.  This is used by nfsd and mountd to construct the NFSv4
   * pseudofilesystem, which provides access only to paths leading to each
   * exported filesystem.
   */
  #define	NFSEXP_V4ROOT		0x10000
  /* All flags that we claim to support.  (Note we don't support NOACL.) */
  #define NFSEXP_ALLFLAGS		0x17E3F
  
  /* The flags that may vary depending on security flavor: */
  #define NFSEXP_SECINFO_FLAGS	(NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
  					| NFSEXP_ALLSQUASH \
  					| NFSEXP_INSECURE_PORT)
  
  
  #endif /* NFSD_EXPORT_H */
  