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 */ 69