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
|
/*
* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/safestack.h>
#include <openssl/asn1.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include "x509_local.h"
int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x)
{
if (x == NULL)
return 0;
return sk_X509_EXTENSION_num(x);
}
int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid,
int lastpos)
{
ASN1_OBJECT *obj;
obj = OBJ_nid2obj(nid);
if (obj == NULL)
return -2;
return X509v3_get_ext_by_OBJ(x, obj, lastpos);
}
int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk,
const ASN1_OBJECT *obj, int lastpos)
{
int n;
X509_EXTENSION *ex;
if (sk == NULL)
return -1;
lastpos++;
if (lastpos < 0)
lastpos = 0;
n = sk_X509_EXTENSION_num(sk);
for (; lastpos < n; lastpos++) {
ex = sk_X509_EXTENSION_value(sk, lastpos);
if (OBJ_cmp(ex->object, obj) == 0)
return lastpos;
}
return -1;
}
int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit,
int lastpos)
{
int n;
X509_EXTENSION *ex;
if (sk == NULL)
return -1;
lastpos++;
if (lastpos < 0)
lastpos = 0;
n = sk_X509_EXTENSION_num(sk);
for (; lastpos < n; lastpos++) {
ex = sk_X509_EXTENSION_value(sk, lastpos);
if (((ex->critical > 0) && crit) || ((ex->critical <= 0) && !crit))
return lastpos;
}
return -1;
}
X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc)
{
if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
return NULL;
else
return sk_X509_EXTENSION_value(x, loc);
}
X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc)
{
X509_EXTENSION *ret;
if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
return NULL;
ret = sk_X509_EXTENSION_delete(x, loc);
return ret;
}
STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x,
X509_EXTENSION *ex, int loc)
{
X509_EXTENSION *new_ex = NULL;
int n;
STACK_OF(X509_EXTENSION) *sk = NULL;
if (x == NULL) {
X509err(X509_F_X509V3_ADD_EXT, ERR_R_PASSED_NULL_PARAMETER);
goto err2;
}
if (*x == NULL) {
if ((sk = sk_X509_EXTENSION_new_null()) == NULL)
goto err;
} else
sk = *x;
n = sk_X509_EXTENSION_num(sk);
if (loc > n)
loc = n;
else if (loc < 0)
loc = n;
if ((new_ex = X509_EXTENSION_dup(ex)) == NULL)
goto err2;
if (!sk_X509_EXTENSION_insert(sk, new_ex, loc))
goto err;
if (*x == NULL)
*x = sk;
return sk;
err:
X509err(X509_F_X509V3_ADD_EXT, ERR_R_MALLOC_FAILURE);
err2:
X509_EXTENSION_free(new_ex);
if (x != NULL && *x == NULL)
sk_X509_EXTENSION_free(sk);
return NULL;
}
X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid,
int crit,
ASN1_OCTET_STRING *data)
{
ASN1_OBJECT *obj;
X509_EXTENSION *ret;
obj = OBJ_nid2obj(nid);
if (obj == NULL) {
X509err(X509_F_X509_EXTENSION_CREATE_BY_NID, X509_R_UNKNOWN_NID);
return NULL;
}
ret = X509_EXTENSION_create_by_OBJ(ex, obj, crit, data);
if (ret == NULL)
ASN1_OBJECT_free(obj);
return ret;
}
X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex,
const ASN1_OBJECT *obj, int crit,
ASN1_OCTET_STRING *data)
{
X509_EXTENSION *ret;
if ((ex == NULL) || (*ex == NULL)) {
if ((ret = X509_EXTENSION_new()) == NULL) {
X509err(X509_F_X509_EXTENSION_CREATE_BY_OBJ,
ERR_R_MALLOC_FAILURE);
return NULL;
}
} else
ret = *ex;
if (!X509_EXTENSION_set_object(ret, obj))
goto err;
if (!X509_EXTENSION_set_critical(ret, crit))
goto err;
if (!X509_EXTENSION_set_data(ret, data))
goto err;
if ((ex != NULL) && (*ex == NULL))
*ex = ret;
return ret;
err:
if ((ex == NULL) || (ret != *ex))
X509_EXTENSION_free(ret);
return NULL;
}
int X509_EXTENSION_set_object(X509_EXTENSION *ex, const ASN1_OBJECT *obj)
{
if ((ex == NULL) || (obj == NULL))
return 0;
ASN1_OBJECT_free(ex->object);
ex->object = OBJ_dup(obj);
return ex->object != NULL;
}
int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit)
{
if (ex == NULL)
return 0;
ex->critical = (crit) ? 0xFF : -1;
return 1;
}
int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data)
{
int i;
if (ex == NULL)
return 0;
i = ASN1_OCTET_STRING_set(&ex->value, data->data, data->length);
if (!i)
return 0;
return 1;
}
ASN1_OBJECT *X509_EXTENSION_get_object(X509_EXTENSION *ex)
{
if (ex == NULL)
return NULL;
return ex->object;
}
ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ex)
{
if (ex == NULL)
return NULL;
return &ex->value;
}
int X509_EXTENSION_get_critical(const X509_EXTENSION *ex)
{
if (ex == NULL)
return 0;
if (ex->critical > 0)
return 1;
return 0;
}
|
