xref: /linux/fs/nfsd/idmap.h (revision 2a2c74b2efcb1a0ca3fdcb5fbb96ad8de6a29177)
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(struct net *);
46 void nfsd_idmap_shutdown(struct net *);
47 #else
48 static inline int nfsd_idmap_init(struct net *net)
49 {
50 	return 0;
51 }
52 static inline void nfsd_idmap_shutdown(struct net *net)
53 {
54 }
55 #endif
56 
57 __be32 nfsd_map_name_to_uid(struct svc_rqst *, const char *, size_t, kuid_t *);
58 __be32 nfsd_map_name_to_gid(struct svc_rqst *, const char *, size_t, kgid_t *);
59 __be32 nfsd4_encode_user(struct svc_rqst *, kuid_t, __be32 **, int *);
60 __be32 nfsd4_encode_group(struct svc_rqst *, kgid_t, __be32 **, int *);
61 
62 #endif /* LINUX_NFSD_IDMAP_H */
63