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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/*
* Copyright 2006 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
/**********************************************************************
*
* C %name: db2_exp.c %
* Instance: idc_sec_2
* Description:
* %created_by: spradeep %
* %date_created: Tue Apr 5 11:44:00 2005 %
*
**********************************************************************/
#ifndef lint
static char *_csrc = "@(#) %filespec: db2_exp.c~5 % (%full_filespec: db2_exp.c~5:csrc:idc_sec#2 %)";
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "k5-int.h"
#include <db.h>
#include <stdio.h>
#include <errno.h>
#include <utime.h>
#include "kdb5.h"
#include "kdb_db2.h"
#include "kdb_xdr.h"
#include "policy_db.h"
/* Quick and dirty wrapper functions to provide for thread safety
within the plugin, instead of making the kdb5 library do it. Eventually
these should be integrated into the real functions.
Some of the functions wrapped here are also called directly from
within this library (e.g., create calls open), so simply dropping
locking code into the top and bottom of each referenced function
won't do. (We aren't doing recursive locks, currently.) */
static k5_mutex_t *krb5_db2_mutex;
#define WRAP(NAME,TYPE,ARGLIST,ARGNAMES,ERROR_RESULT) \
static TYPE wrap_##NAME ARGLIST \
{ \
TYPE result; \
int code = k5_mutex_lock (krb5_db2_mutex); \
if (code) { return ERROR_RESULT; } \
result = NAME ARGNAMES; \
k5_mutex_unlock (krb5_db2_mutex); \
return result; \
} \
/* hack: decl to allow a following ";" */ \
static TYPE wrap_##NAME ()
/* Two special cases: void (can't assign result), and krb5_error_code
(return error from locking code). */
#define WRAP_VOID(NAME,ARGLIST,ARGNAMES) \
static void wrap_##NAME ARGLIST \
{ \
int code = k5_mutex_lock (krb5_db2_mutex); \
if (code) { return; } \
NAME ARGNAMES; \
k5_mutex_unlock (krb5_db2_mutex); \
} \
/* hack: decl to allow a following ";" */ \
static void wrap_##NAME ()
#define WRAP_K(NAME,ARGLIST,ARGNAMES) \
WRAP(NAME,krb5_error_code,ARGLIST,ARGNAMES,code)
WRAP_K (krb5_db2_open,
( krb5_context kcontext,
char *conf_section,
char **db_args,
int mode ),
(kcontext, conf_section, db_args, mode));
WRAP_K (krb5_db2_db_fini, (krb5_context ctx), (ctx));
WRAP_K (krb5_db2_create,
( krb5_context kcontext, char *conf_section, char **db_args ),
(kcontext, conf_section, db_args));
WRAP_K (krb5_db2_destroy,
( krb5_context kcontext, char *conf_section, char **db_args ),
(kcontext, conf_section, db_args));
WRAP_K (krb5_db2_db_get_age,
(krb5_context ctx,
char *s,
time_t *t),
(ctx, s, t));
WRAP_K (krb5_db2_db_set_option,
( krb5_context kcontext,
int option,
void *value ),
(kcontext, option, value));
WRAP_K (krb5_db2_db_lock,
( krb5_context context,
int in_mode),
(context, in_mode));
WRAP_K (krb5_db2_db_unlock, (krb5_context ctx), (ctx));
WRAP_K (krb5_db2_db_get_principal,
(krb5_context ctx,
krb5_const_principal p,
krb5_db_entry *d,
int * i,
krb5_boolean *b),
(ctx, p, d, i, b));
WRAP_K (krb5_db2_db_free_principal,
(krb5_context ctx,
krb5_db_entry *d,
int i),
(ctx, d, i));
WRAP_K (krb5_db2_db_put_principal,
(krb5_context ctx,
krb5_db_entry *d,
int *i,
char **db_args),
(ctx, d, i, db_args));
WRAP_K (krb5_db2_db_delete_principal,
(krb5_context context,
krb5_const_principal searchfor,
int *nentries),
(context, searchfor, nentries));
WRAP_K (krb5_db2_db_iterate,
(krb5_context ctx, char *s,
krb5_error_code (*f) (krb5_pointer,
krb5_db_entry *),
krb5_pointer p),
(ctx, s, f, p));
WRAP_K (krb5_db2_create_policy,
(krb5_context context, osa_policy_ent_t entry),
(context, entry));
WRAP_K (krb5_db2_get_policy,
( krb5_context kcontext,
char *name,
osa_policy_ent_t *policy,
int *cnt),
(kcontext, name, policy, cnt));
WRAP_K (krb5_db2_put_policy,
( krb5_context kcontext, osa_policy_ent_t policy ),
(kcontext, policy));
WRAP_K (krb5_db2_iter_policy,
( krb5_context kcontext,
char *match_entry,
osa_adb_iter_policy_func func,
void *data ),
(kcontext, match_entry, func, data));
WRAP_K (krb5_db2_delete_policy,
( krb5_context kcontext, char *policy ),
(kcontext, policy));
WRAP_VOID (krb5_db2_free_policy,
( krb5_context kcontext, osa_policy_ent_t entry ),
(kcontext, entry));
WRAP (krb5_db2_alloc, void *,
( krb5_context kcontext,
void *ptr,
size_t size ),
(kcontext, ptr, size), NULL);
WRAP_VOID (krb5_db2_free,
( krb5_context kcontext, void *ptr ),
(kcontext, ptr));
WRAP_K (krb5_db2_set_master_key_ext,
( krb5_context kcontext, char *pwd, krb5_keyblock *key),
(kcontext, pwd, key));
WRAP_K (krb5_db2_db_get_mkey,
( krb5_context context, krb5_keyblock **key),
(context, key));
static krb5_error_code
hack_init ()
{
krb5_error_code c;
c = krb5int_mutex_alloc (&krb5_db2_mutex);
if (c)
return c;
return krb5_db2_lib_init ();
}
static krb5_error_code
hack_cleanup (void)
{
krb5int_mutex_free (krb5_db2_mutex);
krb5_db2_mutex = NULL;
return krb5_db2_lib_cleanup();
}
/*
* Exposed API
*/
kdb_vftabl krb5_db_vftabl_db2 = {
1, /* major version number 1 */
0, /* minor version number 0 */
/* init_library */ hack_init,
/* fini_library */ hack_cleanup,
/* init_module */ wrap_krb5_db2_open,
/* fini_module */ wrap_krb5_db2_db_fini,
/* db_create */ wrap_krb5_db2_create,
/* db_destroy */ wrap_krb5_db2_destroy,
/* db_get_age */ wrap_krb5_db2_db_get_age,
/* db_set_option */ wrap_krb5_db2_db_set_option,
/* db_lock */ wrap_krb5_db2_db_lock,
/* db_unlock */ wrap_krb5_db2_db_unlock,
/* db_get_principal */ wrap_krb5_db2_db_get_principal,
/* db_free_principal */ wrap_krb5_db2_db_free_principal,
/* db_put_principal */ wrap_krb5_db2_db_put_principal,
/* db_delete_principal */ wrap_krb5_db2_db_delete_principal,
/* db_iterate */ wrap_krb5_db2_db_iterate,
/* db_create_policy */ wrap_krb5_db2_create_policy,
/* db_get_policy */ wrap_krb5_db2_get_policy,
/* db_put_policy */ wrap_krb5_db2_put_policy,
/* db_iter_policy */ wrap_krb5_db2_iter_policy,
/* db_delete_policy */ wrap_krb5_db2_delete_policy,
/* db_free_policy */ wrap_krb5_db2_free_policy,
/* db_supported_realms */ NULL,
/* db_free_supported_realms */ NULL,
/* errcode_2_string */ NULL,
/* db_alloc */ wrap_krb5_db2_alloc,
/* db_free */ wrap_krb5_db2_free,
/* set_master_key */ wrap_krb5_db2_set_master_key_ext,
/* get_master_key */ wrap_krb5_db2_db_get_mkey
};
|
