Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linux
[linux-2.6.git] / include / linux / nfs_idmap.h
blob0f4b79da65845504c0ffca60a9731b041e21d917
1 /*
2 * include/linux/nfs_idmap.h
4 * UID and GID to name mapping for clients.
6 * Copyright (c) 2002 The Regents of the University of Michigan.
7 * All rights reserved.
9 * Marius Aamodt Eriksen <marius@umich.edu>
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
31 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 #ifndef NFS_IDMAP_H
37 #define NFS_IDMAP_H
39 #include <linux/uidgid.h>
40 #include <uapi/linux/nfs_idmap.h>
43 /* Forward declaration to make this header independent of others */
44 struct nfs_client;
45 struct nfs_server;
46 struct nfs_fattr;
47 struct nfs4_string;
49 #if IS_ENABLED(CONFIG_NFS_V4)
50 int nfs_idmap_init(void);
51 void nfs_idmap_quit(void);
52 #else
53 static inline int nfs_idmap_init(void)
55 return 0;
58 static inline void nfs_idmap_quit(void)
60 #endif
62 int nfs_idmap_new(struct nfs_client *);
63 void nfs_idmap_delete(struct nfs_client *);
65 void nfs_fattr_init_names(struct nfs_fattr *fattr,
66 struct nfs4_string *owner_name,
67 struct nfs4_string *group_name);
68 void nfs_fattr_free_names(struct nfs_fattr *);
69 void nfs_fattr_map_and_free_names(struct nfs_server *, struct nfs_fattr *);
71 int nfs_map_name_to_uid(const struct nfs_server *, const char *, size_t, kuid_t *);
72 int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, kgid_t *);
73 int nfs_map_uid_to_name(const struct nfs_server *, kuid_t, char *, size_t);
74 int nfs_map_gid_to_group(const struct nfs_server *, kgid_t, char *, size_t);
76 extern unsigned int nfs_idmap_cache_timeout;
77 #endif /* NFS_IDMAP_H */