| 1 | /* |
| 2 | * fs/nfs/nfs4idmap.h |
| 3 | * |
| 4 | * UID and GID to name mapping for clients. |
| 5 | * |
| 6 | * Copyright (c) 2002 The Regents of the University of Michigan. |
| 7 | * All rights reserved. |
| 8 | * |
| 9 | * Marius Aamodt Eriksen <marius@umich.edu> |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * |
| 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. |
| 23 | * |
| 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. |
| 35 | */ |
| 36 | #ifndef NFS_IDMAP_H |
| 37 | #define NFS_IDMAP_H |
| 38 | |
| 39 | #include <linux/uidgid.h> |
| 40 | #include <uapi/linux/nfs_idmap.h> |
| 41 | |
| 42 | |
| 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; |
| 48 | |
| 49 | int nfs_idmap_init(void); |
| 50 | void nfs_idmap_quit(void); |
| 51 | int nfs_idmap_new(struct nfs_client *); |
| 52 | void nfs_idmap_delete(struct nfs_client *); |
| 53 | |
| 54 | void nfs_fattr_init_names(struct nfs_fattr *fattr, |
| 55 | struct nfs4_string *owner_name, |
| 56 | struct nfs4_string *group_name); |
| 57 | void nfs_fattr_free_names(struct nfs_fattr *); |
| 58 | void nfs_fattr_map_and_free_names(struct nfs_server *, struct nfs_fattr *); |
| 59 | |
| 60 | int nfs_map_name_to_uid(const struct nfs_server *, const char *, size_t, kuid_t *); |
| 61 | int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, kgid_t *); |
| 62 | int nfs_map_uid_to_name(const struct nfs_server *, kuid_t, char *, size_t); |
| 63 | int nfs_map_gid_to_group(const struct nfs_server *, kgid_t, char *, size_t); |
| 64 | |
| 65 | int nfs_map_string_to_numeric(const char *name, size_t namelen, __u32 *res); |
| 66 | |
| 67 | extern unsigned int nfs_idmap_cache_timeout; |
| 68 | #endif /* NFS_IDMAP_H */ |