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source: vbox/trunk/src/libs/openssl-3.0.1/crypto/x509/x509_att.c@ 94096

最後變更 在這個檔案從94096是 94082,由 vboxsync 提交於 3 年 前

libs/openssl-3.0.1: started applying and adjusting our OpenSSL changes to 3.0.1. bugref:10128
檔案大小: 9.8 KB
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1/*
2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <stdio.h>
11#include "internal/cryptlib.h"
12#include <openssl/safestack.h>
13#include <openssl/asn1.h>
14#include <openssl/objects.h>
15#include <openssl/evp.h>
16#include <openssl/x509.h>
17#include <openssl/x509v3.h>
18#include "crypto/x509.h"
19#include "x509_local.h"
20
21int X509at_get_attr_count(const STACK_OF(X509_ATTRIBUTE) *x)
22{
23 return sk_X509_ATTRIBUTE_num(x);
24}
25
26int X509at_get_attr_by_NID(const STACK_OF(X509_ATTRIBUTE) *x, int nid,
27 int lastpos)
28{
29 const ASN1_OBJECT *obj = OBJ_nid2obj(nid);
30
31 if (obj == NULL)
32 return -2;
33 return X509at_get_attr_by_OBJ(x, obj, lastpos);
34}
35
36int X509at_get_attr_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *sk,
37 const ASN1_OBJECT *obj, int lastpos)
38{
39 int n;
40 X509_ATTRIBUTE *ex;
41
42 if (sk == NULL)
43 return -1;
44 lastpos++;
45 if (lastpos < 0)
46 lastpos = 0;
47 n = sk_X509_ATTRIBUTE_num(sk);
48 for (; lastpos < n; lastpos++) {
49 ex = sk_X509_ATTRIBUTE_value(sk, lastpos);
50 if (OBJ_cmp(ex->object, obj) == 0)
51 return lastpos;
52 }
53 return -1;
54}
55
56X509_ATTRIBUTE *X509at_get_attr(const STACK_OF(X509_ATTRIBUTE) *x, int loc)
57{
58 if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
59 return NULL;
60
61 return sk_X509_ATTRIBUTE_value(x, loc);
62}
63
64X509_ATTRIBUTE *X509at_delete_attr(STACK_OF(X509_ATTRIBUTE) *x, int loc)
65{
66 X509_ATTRIBUTE *ret;
67
68 if (x == NULL || sk_X509_ATTRIBUTE_num(x) <= loc || loc < 0)
69 return NULL;
70 ret = sk_X509_ATTRIBUTE_delete(x, loc);
71 return ret;
72}
73
74STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr(STACK_OF(X509_ATTRIBUTE) **x,
75 X509_ATTRIBUTE *attr)
76{
77 X509_ATTRIBUTE *new_attr = NULL;
78 STACK_OF(X509_ATTRIBUTE) *sk = NULL;
79
80 if (x == NULL) {
81 ERR_raise(ERR_LIB_X509, ERR_R_PASSED_NULL_PARAMETER);
82 return NULL;
83 }
84
85 if (*x == NULL) {
86 if ((sk = sk_X509_ATTRIBUTE_new_null()) == NULL)
87 goto err;
88 } else {
89 sk = *x;
90 }
91
92 if ((new_attr = X509_ATTRIBUTE_dup(attr)) == NULL)
93 goto err2;
94 if (!sk_X509_ATTRIBUTE_push(sk, new_attr))
95 goto err;
96 if (*x == NULL)
97 *x = sk;
98 return sk;
99 err:
100 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
101 err2:
102 X509_ATTRIBUTE_free(new_attr);
103 if (*x == NULL)
104 sk_X509_ATTRIBUTE_free(sk);
105 return NULL;
106}
107
108STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_OBJ(STACK_OF(X509_ATTRIBUTE)
109 **x, const ASN1_OBJECT *obj,
110 int type,
111 const unsigned char *bytes,
112 int len)
113{
114 X509_ATTRIBUTE *attr;
115 STACK_OF(X509_ATTRIBUTE) *ret;
116 attr = X509_ATTRIBUTE_create_by_OBJ(NULL, obj, type, bytes, len);
117 if (!attr)
118 return 0;
119 ret = X509at_add1_attr(x, attr);
120 X509_ATTRIBUTE_free(attr);
121 return ret;
122}
123
124STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_NID(STACK_OF(X509_ATTRIBUTE)
125 **x, int nid, int type,
126 const unsigned char *bytes,
127 int len)
128{
129 X509_ATTRIBUTE *attr;
130 STACK_OF(X509_ATTRIBUTE) *ret;
131 attr = X509_ATTRIBUTE_create_by_NID(NULL, nid, type, bytes, len);
132 if (!attr)
133 return 0;
134 ret = X509at_add1_attr(x, attr);
135 X509_ATTRIBUTE_free(attr);
136 return ret;
137}
138
139STACK_OF(X509_ATTRIBUTE) *X509at_add1_attr_by_txt(STACK_OF(X509_ATTRIBUTE)
140 **x, const char *attrname,
141 int type,
142 const unsigned char *bytes,
143 int len)
144{
145 X509_ATTRIBUTE *attr;
146 STACK_OF(X509_ATTRIBUTE) *ret;
147 attr = X509_ATTRIBUTE_create_by_txt(NULL, attrname, type, bytes, len);
148 if (!attr)
149 return 0;
150 ret = X509at_add1_attr(x, attr);
151 X509_ATTRIBUTE_free(attr);
152 return ret;
153}
154
155void *X509at_get0_data_by_OBJ(const STACK_OF(X509_ATTRIBUTE) *x,
156 const ASN1_OBJECT *obj, int lastpos, int type)
157{
158 int i;
159 X509_ATTRIBUTE *at;
160 i = X509at_get_attr_by_OBJ(x, obj, lastpos);
161 if (i == -1)
162 return NULL;
163 if ((lastpos <= -2) && (X509at_get_attr_by_OBJ(x, obj, i) != -1))
164 return NULL;
165 at = X509at_get_attr(x, i);
166 if (lastpos <= -3 && (X509_ATTRIBUTE_count(at) != 1))
167 return NULL;
168 return X509_ATTRIBUTE_get0_data(at, 0, type, NULL);
169}
170
171STACK_OF(X509_ATTRIBUTE) *ossl_x509at_dup(const STACK_OF(X509_ATTRIBUTE) *x)
172{
173 int i, n;
174 STACK_OF(X509_ATTRIBUTE) *sk = NULL;
175
176 n = sk_X509_ATTRIBUTE_num(x);
177 for (i = 0; i < n; ++i) {
178 X509_ATTRIBUTE *attr = sk_X509_ATTRIBUTE_value(x, i);
179
180 if (X509at_add1_attr(&sk, attr) == NULL) {
181 sk_X509_ATTRIBUTE_pop_free(sk, X509_ATTRIBUTE_free);
182 return NULL;
183 }
184 }
185 return sk;
186}
187
188X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_NID(X509_ATTRIBUTE **attr, int nid,
189 int atrtype, const void *data,
190 int len)
191{
192 ASN1_OBJECT *obj;
193 X509_ATTRIBUTE *ret;
194
195 obj = OBJ_nid2obj(nid);
196 if (obj == NULL) {
197 ERR_raise(ERR_LIB_X509, X509_R_UNKNOWN_NID);
198 return NULL;
199 }
200 ret = X509_ATTRIBUTE_create_by_OBJ(attr, obj, atrtype, data, len);
201 if (ret == NULL)
202 ASN1_OBJECT_free(obj);
203 return ret;
204}
205
206X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_OBJ(X509_ATTRIBUTE **attr,
207 const ASN1_OBJECT *obj,
208 int atrtype, const void *data,
209 int len)
210{
211 X509_ATTRIBUTE *ret;
212
213 if ((attr == NULL) || (*attr == NULL)) {
214 if ((ret = X509_ATTRIBUTE_new()) == NULL) {
215 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
216 return NULL;
217 }
218 } else
219 ret = *attr;
220
221 if (!X509_ATTRIBUTE_set1_object(ret, obj))
222 goto err;
223 if (!X509_ATTRIBUTE_set1_data(ret, atrtype, data, len))
224 goto err;
225
226 if ((attr != NULL) && (*attr == NULL))
227 *attr = ret;
228 return ret;
229 err:
230 if ((attr == NULL) || (ret != *attr))
231 X509_ATTRIBUTE_free(ret);
232 return NULL;
233}
234
235X509_ATTRIBUTE *X509_ATTRIBUTE_create_by_txt(X509_ATTRIBUTE **attr,
236 const char *atrname, int type,
237 const unsigned char *bytes,
238 int len)
239{
240 ASN1_OBJECT *obj;
241 X509_ATTRIBUTE *nattr;
242
243 obj = OBJ_txt2obj(atrname, 0);
244 if (obj == NULL) {
245 ERR_raise_data(ERR_LIB_X509, X509_R_INVALID_FIELD_NAME,
246 "name=%s", atrname);
247 return NULL;
248 }
249 nattr = X509_ATTRIBUTE_create_by_OBJ(attr, obj, type, bytes, len);
250 ASN1_OBJECT_free(obj);
251 return nattr;
252}
253
254int X509_ATTRIBUTE_set1_object(X509_ATTRIBUTE *attr, const ASN1_OBJECT *obj)
255{
256 if ((attr == NULL) || (obj == NULL))
257 return 0;
258 ASN1_OBJECT_free(attr->object);
259 attr->object = OBJ_dup(obj);
260 return attr->object != NULL;
261}
262
263int X509_ATTRIBUTE_set1_data(X509_ATTRIBUTE *attr, int attrtype,
264 const void *data, int len)
265{
266 ASN1_TYPE *ttmp = NULL;
267 ASN1_STRING *stmp = NULL;
268 int atype = 0;
269 if (!attr)
270 return 0;
271 if (attrtype & MBSTRING_FLAG) {
272 stmp = ASN1_STRING_set_by_NID(NULL, data, len, attrtype,
273 OBJ_obj2nid(attr->object));
274 if (!stmp) {
275 ERR_raise(ERR_LIB_X509, ERR_R_ASN1_LIB);
276 return 0;
277 }
278 atype = stmp->type;
279 } else if (len != -1) {
280 if ((stmp = ASN1_STRING_type_new(attrtype)) == NULL)
281 goto err;
282 if (!ASN1_STRING_set(stmp, data, len))
283 goto err;
284 atype = attrtype;
285 }
286 /*
287 * This is a bit naughty because the attribute should really have at
288 * least one value but some types use and zero length SET and require
289 * this.
290 */
291 if (attrtype == 0) {
292 ASN1_STRING_free(stmp);
293 return 1;
294 }
295 if ((ttmp = ASN1_TYPE_new()) == NULL)
296 goto err;
297 if ((len == -1) && !(attrtype & MBSTRING_FLAG)) {
298 if (!ASN1_TYPE_set1(ttmp, attrtype, data))
299 goto err;
300 } else {
301 ASN1_TYPE_set(ttmp, atype, stmp);
302 stmp = NULL;
303 }
304 if (!sk_ASN1_TYPE_push(attr->set, ttmp))
305 goto err;
306 return 1;
307 err:
308 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
309 ASN1_TYPE_free(ttmp);
310 ASN1_STRING_free(stmp);
311 return 0;
312}
313
314int X509_ATTRIBUTE_count(const X509_ATTRIBUTE *attr)
315{
316 if (attr == NULL)
317 return 0;
318 return sk_ASN1_TYPE_num(attr->set);
319}
320
321ASN1_OBJECT *X509_ATTRIBUTE_get0_object(X509_ATTRIBUTE *attr)
322{
323 if (attr == NULL)
324 return NULL;
325 return attr->object;
326}
327
328void *X509_ATTRIBUTE_get0_data(X509_ATTRIBUTE *attr, int idx,
329 int atrtype, void *data)
330{
331 ASN1_TYPE *ttmp;
332 ttmp = X509_ATTRIBUTE_get0_type(attr, idx);
333 if (!ttmp)
334 return NULL;
335 if (atrtype == V_ASN1_BOOLEAN
336 || atrtype == V_ASN1_NULL
337 || atrtype != ASN1_TYPE_get(ttmp)) {
338 ERR_raise(ERR_LIB_X509, X509_R_WRONG_TYPE);
339 return NULL;
340 }
341 return ttmp->value.ptr;
342}
343
344ASN1_TYPE *X509_ATTRIBUTE_get0_type(X509_ATTRIBUTE *attr, int idx)
345{
346 if (attr == NULL)
347 return NULL;
348 return sk_ASN1_TYPE_value(attr->set, idx);
349}
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