/*

   * fs/nfs/nfs4idmap.h

   *
   *  UID and GID to name mapping for clients.
   *
   *  Copyright (c) 2002 The Regents of the University of Michigan.
   *  All rights reserved.
   *
   *  Marius Aamodt Eriksen <marius@umich.edu>
   *
   *  Redistribution and use in source and binary forms, with or without
   *  modification, are permitted provided that the following conditions
   *  are met:
   *
   *  1. Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   *  2. Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   *  3. Neither the name of the University nor the names of its
   *     contributors may be used to endorse or promote products derived
   *     from this software without specific prior written permission.
   *
   *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
   *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   *  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
   *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
   *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */

  #ifndef NFS_IDMAP_H
  #define NFS_IDMAP_H

  #include <linux/uidgid.h>

  #include <uapi/linux/nfs_idmap.h>

  
  /* Forward declaration to make this header independent of others */

  struct nfs_client;

  struct nfs_server;

  struct nfs_fattr;
  struct nfs4_string;

  int nfs_idmap_init(void);
  void nfs_idmap_quit(void);

  int nfs_idmap_new(struct nfs_client *);

  void nfs_idmap_delete(struct nfs_client *);

  void nfs_fattr_init_names(struct nfs_fattr *fattr,
  		struct nfs4_string *owner_name,
  		struct nfs4_string *group_name);
  void nfs_fattr_free_names(struct nfs_fattr *);
  void nfs_fattr_map_and_free_names(struct nfs_server *, struct nfs_fattr *);

  int nfs_map_name_to_uid(const struct nfs_server *, const char *, size_t, kuid_t *);
  int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, kgid_t *);
  int nfs_map_uid_to_name(const struct nfs_server *, kuid_t, char *, size_t);
  int nfs_map_gid_to_group(const struct nfs_server *, kgid_t, char *, size_t);

  int nfs_map_string_to_numeric(const char *name, size_t namelen, __u32 *res);

  extern unsigned int nfs_idmap_cache_timeout;

  #endif /* NFS_IDMAP_H */