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.
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
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.
40 #include <linux/types.h>
42 /* XXX from bits/utmp.h */
43 #define IDMAP_NAMESZ 128
45 #define IDMAP_TYPE_USER 0
46 #define IDMAP_TYPE_GROUP 1
48 #define IDMAP_CONV_IDTONAME 0
49 #define IDMAP_CONV_NAMETOID 1
51 #define IDMAP_STATUS_INVALIDMSG 0x01
52 #define IDMAP_STATUS_AGAIN 0x02
53 #define IDMAP_STATUS_LOOKUPFAIL 0x04
54 #define IDMAP_STATUS_SUCCESS 0x08
59 char im_name
[IDMAP_NAMESZ
];
66 /* Forward declaration to make this header independent of others */
72 int nfs_idmap_init(void);
73 void nfs_idmap_quit(void);
74 int nfs_idmap_new(struct nfs_client
*);
75 void nfs_idmap_delete(struct nfs_client
*);
77 void nfs_fattr_init_names(struct nfs_fattr
*fattr
,
78 struct nfs4_string
*owner_name
,
79 struct nfs4_string
*group_name
);
80 void nfs_fattr_free_names(struct nfs_fattr
*);
81 void nfs_fattr_map_and_free_names(struct nfs_server
*, struct nfs_fattr
*);
83 int nfs_map_name_to_uid(const struct nfs_server
*, const char *, size_t, __u32
*);
84 int nfs_map_group_to_gid(const struct nfs_server
*, const char *, size_t, __u32
*);
85 int nfs_map_uid_to_name(const struct nfs_server
*, __u32
, char *, size_t);
86 int nfs_map_gid_to_group(const struct nfs_server
*, __u32
, char *, size_t);
88 extern unsigned int nfs_idmap_cache_timeout
;
89 #endif /* __KERNEL__ */
91 #endif /* NFS_IDMAP_H */
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