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
|
/** BEGIN COPYRIGHT BLOCK
* Copyright (C) 2010 Red Hat, Inc.
* All rights reserved.
*
* License: GPL (version 3 or any later version).
* See LICENSE for details.
* END COPYRIGHT BLOCK **/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/* cl_crypt.c - handles changelog encryption. */
#include <errno.h>
#include <sys/stat.h>
#if defined(OS_solaris) || defined(hpux)
#include <sys/types.h>
#include <sys/statvfs.h>
#endif
#if defined(linux)
#include <sys/vfs.h>
#endif
#include "slapi-plugin.h"
#include "cl5_api.h"
#include "cl_crypt.h"
/*
* BACK_INFO_CRYPT_INIT
*/
void *
clcrypt_init(char *encryptionAlgorithm, Slapi_Backend *be)
{
int rc = 0;
back_info_crypt_init crypt_init = {0};
void *crypt_handle = NULL;
slapi_log_err(SLAPI_LOG_TRACE, repl_plugin_name, "-> clcrypt_init\n");
if (!encryptionAlgorithm) {
/* Encryption is not specified */
goto bail;
}
crypt_init.dn = "cn=changelog";
crypt_init.encryptionAlgorithm = encryptionAlgorithm;
crypt_init.be = be;
rc = slapi_back_ctrl_info(be, BACK_INFO_CRYPT_INIT,
(void *)&crypt_init);
if (LDAP_SUCCESS == rc && crypt_init.state_priv) {
crypt_handle = crypt_init.state_priv;
}
bail:
slapi_log_err(SLAPI_LOG_TRACE, repl_plugin_name,
"<- clcrypt_init : %d\n", rc);
return crypt_handle;
}
/*
* return values: 0 - success
* : -1 - error
*
* output value: out: non-NULL - cl encryption state private freed
* : NULL - failure
*/
int
clcrypt_destroy(void *clcrypt_handle, Slapi_Backend *be)
{
int rc = -1;
back_info_crypt_destroy crypt_destroy = {0};
slapi_log_err(SLAPI_LOG_TRACE, repl_plugin_name,
"-> clcrypt_destroy\n");
if (NULL == clcrypt_handle) {
/* Nothing to free */
return 0;
}
crypt_destroy.state_priv = clcrypt_handle;
rc = slapi_back_ctrl_info(be, BACK_INFO_CRYPT_DESTROY,
(void *)&crypt_destroy);
if (LDAP_SUCCESS == rc) {
rc = 0;
} else {
rc = -1;
}
slapi_log_err(SLAPI_LOG_TRACE, repl_plugin_name,
"<- clcrypt_destroy (returning %d)\n", rc);
return rc;
}
/*
* return values: 0 - success
* : 1 - no encryption
* : -1 - error
*
* output value: out: non-NULL - encryption successful
* : NULL - no encryption or failure
*/
int
clcrypt_encrypt_value(void *clcrypt_handle,
struct berval *in,
struct berval **out)
{
int rc = -1;
char *cookie = NULL;
Slapi_Backend *be = NULL;
back_info_crypt_value crypt_value = {0};
slapi_log_err(SLAPI_LOG_TRACE, repl_plugin_name,
"-> clcrypt_encrypt_value\n");
if (NULL == out) {
goto bail;
}
*out = NULL;
if (NULL == clcrypt_handle) {
rc = 1;
goto bail;
}
crypt_value.state_priv = clcrypt_handle;
crypt_value.in = in;
be = slapi_get_first_backend(&cookie);
while (be) {
rc = slapi_back_ctrl_info(be, BACK_INFO_CRYPT_ENCRYPT_VALUE,
(void *)&crypt_value);
if (LDAP_SUCCESS == rc) {
break; /* Successfully fetched */
}
be = slapi_get_next_backend(cookie);
}
slapi_ch_free((void **)&cookie);
if (LDAP_SUCCESS == rc && crypt_value.out) {
*out = crypt_value.out;
rc = 0;
} else {
rc = -1;
}
bail:
slapi_log_err(SLAPI_LOG_TRACE, repl_plugin_name,
"<- clcrypt_encrypt_entry (returning %d)\n", rc);
return rc;
}
/*
* return values: 0 - success
* : 1 - no encryption
* : -1 - error
*
* output value: out: non-NULL - encryption successful
* : NULL - no encryption or failure
*/
int
clcrypt_decrypt_value(void *clcrypt_handle,
struct berval *in,
struct berval **out)
{
int rc = -1;
char *cookie = NULL;
Slapi_Backend *be = NULL;
back_info_crypt_value crypt_value = {0};
slapi_log_err(SLAPI_LOG_TRACE, repl_plugin_name,
"-> clcrypt_decrypt_value\n");
if (NULL == out) {
goto bail;
}
*out = NULL;
if (NULL == clcrypt_handle) {
rc = 1;
goto bail;
}
crypt_value.state_priv = clcrypt_handle;
crypt_value.in = in;
be = slapi_get_first_backend(&cookie);
while (be) {
rc = slapi_back_ctrl_info(be, BACK_INFO_CRYPT_DECRYPT_VALUE,
(void *)&crypt_value);
if (LDAP_SUCCESS == rc) {
break; /* Successfully fetched */
}
be = slapi_get_next_backend(cookie);
}
slapi_ch_free((void **)&cookie);
if (LDAP_SUCCESS == rc && crypt_value.out) {
*out = crypt_value.out;
rc = 0;
} else {
rc = -1;
}
bail:
slapi_log_err(SLAPI_LOG_TRACE, repl_plugin_name,
"<- clcrypt_decrypt_entry (returning %d)\n", rc);
return rc;
}
|
