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/*
 * 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 {
        u_int8_t  im_type;
        u_int8_t  im_conv;
        char      im_name[IDMAP_NAMESZ];
        u_int32_t im_id;
        u_int8_t  im_status;
};

#ifdef __KERNEL__
void      *nfs_idmap_new(struct nfs_server *);
void       nfs_idmap_delete(struct nfs_server *);
int        nfs_idmap_id(struct nfs_server *, u_int8_t, char *, u_int,  uid_t *);
int        nfs_idmap_name(struct nfs_server *, u_int8_t, uid_t, char *, u_int *);
#endif /* __KERNEL__ */

#endif /* NFS_IDMAP_H */