/*

 * include/linux/nfs_idmap.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

/* XXX from bits/utmp.h  */

#define IDMAP_NAMESZ  128

#define IDMAP_TYPE_USER  0

#define IDMAP_TYPE_GROUP 1

#define IDMAP_CONV_IDTONAME 0

#define IDMAP_CONV_NAMETOID 1

#define IDMAP_STATUS_INVALIDMSG 0x01

#define IDMAP_STATUS_AGAIN      0x02

#define IDMAP_STATUS_LOOKUPFAIL 0x04

#define IDMAP_STATUS_SUCCESS    0x08

struct idmap_msg {

	__u8  im_type;

	__u8  im_conv;

	char  im_name[IDMAP_NAMESZ];

	__u32 im_id;

	__u8  im_status;

};

#ifdef __KERNEL__

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

struct nfs_client;

int nfs_idmap_new(struct nfs_client *);

void nfs_idmap_delete(struct nfs_client *);

int nfs_map_name_to_uid(struct nfs_client *, const char *, size_t, __u32 *);

int nfs_map_group_to_gid(struct nfs_client *, const char *, size_t, __u32 *);

int nfs_map_uid_to_name(struct nfs_client *, __u32, char *);

int nfs_map_gid_to_group(struct nfs_client *, __u32, char *);

extern unsigned int nfs_idmap_cache_timeout;

#endif /* __KERNEL__ */

#endif /* NFS_IDMAP_H */