1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef __SHIM_H
#define __SHIM_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/*
* DESCRIPTION: Shim header information not relating to hooks
*
*/
/*
* Structure for holding all the information relating to one map. These will
* probably end up in shared memory so everyone can get at them.
*
* DBM pointers are non NULL only while the file is open.
*/
typedef struct {
/* These are used in all modes */
DBM *entries; /* NIS entry DBM file */
int hash_val; /* Hash of name (to save repeated rehashing) */
/*
* Names.
*
* There is some duplication of information here but this enables these
* strings to be worked out once (when the map_ctrl is created) rather
* than many times as it is used.
*/
char *map_name; /* Name of map, unqualified */
char *domain; /* Domain name */
char *map_path; /* Full qualified path to map */
/* These are used only in N2L mode */
DBM *ttl; /* TTL DBM file */
char *ttl_path; /* Full qualified path to TTL file */
char *trad_map_path; /* Equivalent qualified traditional map name */
datum key_data; /* See NOTE at top of shim.c */
/* Open parameters (in case of reopen ) */
mode_t open_mode;
int open_flags;
int magic; /* Check that this really is a map_ctrl */
}map_ctrl;
#define MAP_MAGIC 0x09876543
/*
* Structure for holding unique map IDs.
* Used for locking purposes, in N2L mode only.
*/
typedef struct map_id_elt {
char *map_name;
int map_id;
struct map_id_elt *next;
} map_id_elt_t;
/*
* Success and failure codes the same as used by DBM
*/
typedef int suc_code;
#define SUCCESS 0
#define FAILURE -1
/*
* Extern defs for new DBM calls. Must have identical args to traditional
* version.
*/
extern void shim_dbm_close(DBM *db);
extern int shim_dbm_delete(DBM *db, datum key);
extern datum shim_dbm_fetch(DBM *db, datum key);
extern datum shim_dbm_fetch_noupdate(DBM *db, datum key);
extern datum shim_dbm_firstkey(DBM *db);
extern datum shim_dbm_nextkey(DBM *db);
extern DBM *shim_dbm_open(const char *file, int open_flags,
mode_t file_mode);
extern int shim_dbm_store(DBM *db, datum key, datum content,
int store_mode);
/*
* Other externs
*/
extern map_ctrl *get_map_ctrl(DBM *);
extern map_ctrl *create_map_ctrl(char *);
extern void free_map_ctrl(map_ctrl *);
extern map_ctrl *dup_map_ctrl(map_ctrl *);
extern void dump_map_ctrl(map_ctrl *);
extern suc_code map_ctrl_init(map_ctrl *map, char *name);
extern int lock_map_ctrl(map_ctrl *map);
extern int unlock_map_ctrl(map_ctrl *map);
extern int map_id_list_init();
extern void get_list_max(map_id_elt_t ***list, int *max);
extern int try_lock_map_update(map_ctrl *map);
extern suc_code lock_map_update(map_ctrl *map);
extern suc_code unlock_map_update(map_ctrl *map);
extern bool_t init_update_lock_map();
/*
* Globals
*/
extern bool_t yptol_mode;
extern bool_t yptol_newlock;
extern bool_t ypxfrd_flag;
extern int yp2ldap;
/*
* String extensions used in N2L
*/
/* Prefix used for N2L map names */
#define NTOL_PREFIX "LDAP_"
/* Postfix used for TTL DBM files */
#define TTL_POSTFIX "_TTL"
/* Postfix for temporary files */
#define TEMP_POSTFIX "_TMP"
/* File separator character. If this is defined elsewhere can be removed */
#define SEP_CHAR '/'
/*
* Special keys used in DBM files. No real NIS map can use these keys.
*/
#define MAP_EXPIRY_KEY "YP_EXPIRY_TIME"
#define MAP_OLD_MAP_DATE_KEY "YP_OLD_MAP_DATE_TIME"
/* Mmaped file used for update flags shared memory */
#define SHM_FILE "/var/run/nis_shim"
/* used for map arrays reallocation purposes */
#define ARRAY_CHUNK 10
#ifdef __cplusplus
}
#endif
#endif /* __SHIM_H */
|
