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/*
* include/linux/nfs_idmap.h
*
* UID and GID to name mapping for clients.
*
* Copyright (c) 2002 The Regents of the University of Michigan.
* All rights reserved.
*
* Marius Aamodt Eriksen <marius@umich.edu>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef NFS_IDMAP_H
#define NFS_IDMAP_H
#include <linux/uidgid.h>
#include <uapi/linux/nfs_idmap.h>
/* Forward declaration to make this header independent of others */
struct nfs_client;
struct nfs_server;
struct nfs_fattr;
struct nfs4_string;
#if IS_ENABLED(CONFIG_NFS_V4)
int nfs_idmap_init(void);
void nfs_idmap_quit(void);
#else
static inline int nfs_idmap_init(void)
{
return 0;
}
static inline void nfs_idmap_quit(void)
{}
#endif
int nfs_idmap_new(struct nfs_client *);
void nfs_idmap_delete(struct nfs_client *);
void nfs_fattr_init_names(struct nfs_fattr *fattr,
struct nfs4_string *owner_name,
struct nfs4_string *group_name);
void nfs_fattr_free_names(struct nfs_fattr *);
void nfs_fattr_map_and_free_names(struct nfs_server *, struct nfs_fattr *);
int nfs_map_name_to_uid(const struct nfs_server *, const char *, size_t, kuid_t *);
int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, kgid_t *);
int nfs_map_uid_to_name(const struct nfs_server *, kuid_t, char *, size_t);
int nfs_map_gid_to_group(const struct nfs_server *, kgid_t, char *, size_t);
extern unsigned int nfs_idmap_cache_timeout;
#endif /* NFS_IDMAP_H */
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