/*
   * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
   */
  
  #ifndef LINUX_NFSD_VFS_H
  #define LINUX_NFSD_VFS_H

  #include "nfsfh.h"

  /*
   * Flags for nfsd_permission
   */

  #define NFSD_MAY_NOP			0
  #define NFSD_MAY_EXEC			0x001 /* == MAY_EXEC */
  #define NFSD_MAY_WRITE			0x002 /* == MAY_WRITE */
  #define NFSD_MAY_READ			0x004 /* == MAY_READ */
  #define NFSD_MAY_SATTR			0x008
  #define NFSD_MAY_TRUNC			0x010
  #define NFSD_MAY_LOCK			0x020
  #define NFSD_MAY_MASK			0x03f

  
  /* extra hints to permission and open routines: */

  #define NFSD_MAY_OWNER_OVERRIDE		0x040
  #define NFSD_MAY_LOCAL_ACCESS		0x080 /* for device special files */
  #define NFSD_MAY_BYPASS_GSS_ON_ROOT	0x100
  #define NFSD_MAY_NOT_BREAK_LEASE	0x200
  #define NFSD_MAY_BYPASS_GSS		0x400
  #define NFSD_MAY_READ_IF_EXEC		0x800

  
  #define NFSD_MAY_CREATE		(NFSD_MAY_EXEC|NFSD_MAY_WRITE)
  #define NFSD_MAY_REMOVE		(NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC)
  
  /*
   * Callback function for readdir
   */
  typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
  
  /* nfsd/vfs.c */
  int		fh_lock_parent(struct svc_fh *, struct dentry *);
  int		nfsd_racache_init(int);
  void		nfsd_racache_shutdown(void);
  int		nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
  		                struct svc_export **expp);
  __be32		nfsd_lookup(struct svc_rqst *, struct svc_fh *,
  				const char *, unsigned int, struct svc_fh *);
  __be32		 nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *,
  				const char *, unsigned int,
  				struct svc_export **, struct dentry **);
  __be32		nfsd_setattr(struct svc_rqst *, struct svc_fh *,
  				struct iattr *, int, time_t);

  int nfsd_mountpoint(struct dentry *, struct svc_export *);

  #ifdef CONFIG_NFSD_V4
  __be32          nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *,
                      struct nfs4_acl *);
  int             nfsd4_get_nfs4_acl(struct svc_rqst *, struct dentry *, struct nfs4_acl **);
  #endif /* CONFIG_NFSD_V4 */
  __be32		nfsd_create(struct svc_rqst *, struct svc_fh *,
  				char *name, int len, struct iattr *attrs,
  				int type, dev_t rdev, struct svc_fh *res);
  #ifdef CONFIG_NFSD_V3
  __be32		nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *);

  __be32		do_nfsd_create(struct svc_rqst *, struct svc_fh *,

  				char *name, int len, struct iattr *attrs,
  				struct svc_fh *res, int createmode,

  				u32 *verifier, bool *truncp, bool *created);

  __be32		nfsd_commit(struct svc_rqst *, struct svc_fh *,
  				loff_t, unsigned long);
  #endif /* CONFIG_NFSD_V3 */

  __be32		nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t,

  				int, struct file **);
  void		nfsd_close(struct file *);

  __be32 		nfsd_read(struct svc_rqst *, struct svc_fh *,
  				loff_t, struct kvec *, int, unsigned long *);
  __be32 		nfsd_read_file(struct svc_rqst *, struct svc_fh *, struct file *,

  				loff_t, struct kvec *, int, unsigned long *);
  __be32 		nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
  				loff_t, struct kvec *,int, unsigned long *, int *);
  __be32		nfsd_readlink(struct svc_rqst *, struct svc_fh *,
  				char *, int *);
  __be32		nfsd_symlink(struct svc_rqst *, struct svc_fh *,
  				char *name, int len, char *path, int plen,
  				struct svc_fh *res, struct iattr *);
  __be32		nfsd_link(struct svc_rqst *, struct svc_fh *,
  				char *, int, struct svc_fh *);
  __be32		nfsd_rename(struct svc_rqst *,
  				struct svc_fh *, char *, int,
  				struct svc_fh *, char *, int);
  __be32		nfsd_remove(struct svc_rqst *,
  				struct svc_fh *, char *, int);
  __be32		nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type,
  				char *name, int len);
  int		nfsd_truncate(struct svc_rqst *, struct svc_fh *,
  				unsigned long size);
  __be32		nfsd_readdir(struct svc_rqst *, struct svc_fh *,
  			     loff_t *, struct readdir_cd *, filldir_t);
  __be32		nfsd_statfs(struct svc_rqst *, struct svc_fh *,
  				struct kstatfs *, int access);
  
  int		nfsd_notify_change(struct inode *, struct iattr *);
  __be32		nfsd_permission(struct svc_rqst *, struct svc_export *,
  				struct dentry *, int);
  int		nfsd_sync_dir(struct dentry *dp);
  
  #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
  struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int);
  int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
  #endif

  static inline int fh_want_write(struct svc_fh *fh)
  {
  	return mnt_want_write(fh->fh_export->ex_path.mnt);
  }
  
  static inline void fh_drop_write(struct svc_fh *fh)
  {
  	mnt_drop_write(fh->fh_export->ex_path.mnt);
  }

  #endif /* LINUX_NFSD_VFS_H */