fs/nfsd/idmap.h

   1 /*
   2  *  Mapping of UID to name and vice versa.
   3  *
   4  *  Copyright (c) 2002, 2003 The Regents of the University of
   5  *  Michigan.  All rights reserved.
   6 > *
   7  *  Marius Aamodt Eriksen <marius@umich.edu>
   8  *
   9  *  Redistribution and use in source and binary forms, with or without
  10  *  modification, are permitted provided that the following conditions
  11  *  are met:
  12  *
  13  *  1. Redistributions of source code must retain the above copyright
  14  *     notice, this list of conditions and the following disclaimer.
  15  *  2. Redistributions in binary form must reproduce the above copyright
  16  *     notice, this list of conditions and the following disclaimer in the
  17  *     documentation and/or other materials provided with the distribution.
  18  *  3. Neither the name of the University nor the names of its
  19  *     contributors may be used to endorse or promote products derived
  20  *     from this software without specific prior written permission.
  21  *
  22  *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  23  *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  24  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  25  *  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  29  *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  30  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  31  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  32  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef LINUX_NFSD_IDMAP_H
  36 #define LINUX_NFSD_IDMAP_H
  37
  38 #include <linux/in.h>
  39 #include <linux/sunrpc/svc.h>
  40
  41 /* XXX from linux/nfs_idmap.h */
  42 #define IDMAP_NAMESZ 128
  43
  44 #ifdef CONFIG_NFSD_V4
  45 int nfsd_idmap_init(void);
  46 void nfsd_idmap_shutdown(void);
  47 #else
  48 static inline int nfsd_idmap_init(void)
  49 {
  50         return 0;
  51 }
  52 static inline void nfsd_idmap_shutdown(void)
  53 {
  54 }
  55 #endif
  56
  57 __be32 nfsd_map_name_to_uid(struct svc_rqst *, const char *, size_t, __u32 *);
  58 __be32 nfsd_map_name_to_gid(struct svc_rqst *, const char *, size_t, __u32 *);
  59 int nfsd_map_uid_to_name(struct svc_rqst *, __u32, char *);
  60 int nfsd_map_gid_to_name(struct svc_rqst *, __u32, char *);
  61
  62 #endif /* LINUX_NFSD_IDMAP_H */