[deliverable/linux.git] / include / linux / nfs_idmap.h

/*
 * 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 <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, __u32 *);
int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, __u32 *);
int nfs_map_uid_to_name(const struct nfs_server *, __u32, char *, size_t);
int nfs_map_gid_to_group(const struct nfs_server *, __u32, char *, size_t);

extern unsigned int nfs_idmap_cache_timeout;
#endif /* NFS_IDMAP_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* include/linux/nfs_idmap.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	*/
1da177e4 LT	36	#ifndef NFS_IDMAP_H
	37	#define NFS_IDMAP_H
	38
607ca46e	39	#include <uapi/linux/nfs_idmap.h>
1da177e4	40
1da177e4 LT	41
1da177e4 LT	42	/* Forward declaration to make this header independent of others */
adfa6f98	43	struct nfs_client;
e4fd72a1	44	struct nfs_server;
6926afd1 TM	45	struct nfs_fattr;
6926afd1 TM	46	struct nfs4_string;
1da177e4	47
89d77c8f	48	#if IS_ENABLED(CONFIG_NFS_V4)
955a857e BS	49	int nfs_idmap_init(void);
955a857e BS	50	void nfs_idmap_quit(void);
91e56aae BS	51	#else
	52	static inline int nfs_idmap_init(void)
	53	{
	54	return 0;
	55	}
	56
	57	static inline void nfs_idmap_quit(void)
	58	{}
	59	#endif
	60
b7162792	61	int nfs_idmap_new(struct nfs_client *);
adfa6f98	62	void nfs_idmap_delete(struct nfs_client *);
1da177e4	63
6926afd1 TM	64	void nfs_fattr_init_names(struct nfs_fattr *fattr,
	65	struct nfs4_string *owner_name,
	66	struct nfs4_string *group_name);
	67	void nfs_fattr_free_names(struct nfs_fattr *);
	68	void nfs_fattr_map_and_free_names(struct nfs_server , struct nfs_fattr );
	69
e4fd72a1 TM	70	int nfs_map_name_to_uid(const struct nfs_server , const char , size_t, __u32 *);
	71	int nfs_map_group_to_gid(const struct nfs_server , const char , size_t, __u32 *);
	72	int nfs_map_uid_to_name(const struct nfs_server , __u32, char , size_t);
	73	int nfs_map_gid_to_group(const struct nfs_server , __u32, char , size_t);
58df095b TM	74
58df095b TM	75	extern unsigned int nfs_idmap_cache_timeout;
1da177e4	76	#endif /* NFS_IDMAP_H */