nfs4_idmap_impl.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _NFS4_IDMAP_IMPL_H
#define _NFS4_IDMAP_IMPL_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/list.h>
#include <sys/door.h>
/*
* This is a private header file. Applications should not directly include
* this file.
*/
#ifdef __cplusplus
extern "C" {
#endif
/*
* Cache Entry Definitions
*/
#define NFSID_CACHE_ANCHORS 256
typedef struct nfsidmap {
struct nfsidmap *id_chain[2]; /* must be first */
time_t id_time; /* time stamp */
uid_t id_no; /* uid/gid */
utf8string id_str; /* user@domain string */
} nfsidmap_t;
#define id_forw id_chain[0]
#define id_back id_chain[1]
#define id_len id_str.utf8string_len
#define id_val id_str.utf8string_val
typedef struct nfsidhq {
union {
struct nfsidhq *hq_head[2]; /* for empty queue */
struct nfsidmap *hq_chain[2]; /* for LRU list */
} hq_link;
kmutex_t hq_lock; /* protects hash queue */
} nfsidhq_t;
#define hq_que_forw hq_link.hq_head[0]
#define hq_que_back hq_link.hq_head[1]
#define hq_lru_forw hq_link.hq_chain[0]
#define hq_lru_back hq_link.hq_chain[1]
typedef struct {
const char *name; /* cache name */
nfsidhq_t *table; /* hash table */
/*
* Since we need to know the status of nfsmapid from random functions
* that deal with idmap caches, we keep a pointer to the relevant fields
* in the zone's globals so we don't have to keep passing them around.
*/
door_handle_t *nfsidmap_daemon_dh;
} idmap_cache_info_t;
typedef enum hash_stat { HQ_HASH_HINT, HQ_HASH_FIND } hash_stat;
/*
* Per-zone modular globals
*/
struct nfsidmap_globals {
list_node_t nig_link; /* linkage into global list */
enum clnt_stat nig_last_stat; /* status of last RPC call */
int nig_msg_done; /* have we printed a message? */
idmap_cache_info_t u2s_ci; /* table mapping uid-to-string */
idmap_cache_info_t s2u_ci; /* table mapping string-to-uid */
idmap_cache_info_t g2s_ci; /* table mapping groupid-to-string */
idmap_cache_info_t s2g_ci; /* table mapping string-to-groupid */
pid_t nfsidmap_pid;
kmutex_t nfsidmap_daemon_lock;
/*
* nfsidmap_daemon_lock protects the following:
* nfsidmap_daemon_dh
*/
door_handle_t nfsidmap_daemon_dh;
};
#ifdef __cplusplus
}
#endif
#endif /* _NFS4_IDMAP_IMPL_H */