2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 2000-2004 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
60 #include <openssl/asn1.h>
61 #include <openssl/objects.h>
62 #include <openssl/err.h>
63 #include <openssl/asn1t.h>
65 #include "asn1_locl.h"
67 static int asn1_item_embed_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
69 static int asn1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
71 static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);
72 static int asn1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
73 static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
74 static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);
76 ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it)
78 ASN1_VALUE *ret = NULL;
79 if (ASN1_item_ex_new(&ret, it) > 0)
84 /* Allocate an ASN1 structure */
86 int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
88 return asn1_item_embed_new(pval, it, 0);
91 int asn1_item_embed_new(ASN1_VALUE **pval, const ASN1_ITEM *it, int embed)
93 const ASN1_TEMPLATE *tt = NULL;
94 const ASN1_EXTERN_FUNCS *ef;
95 const ASN1_AUX *aux = it->funcs;
99 if (aux && aux->asn1_cb)
100 asn1_cb = aux->asn1_cb;
104 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
105 OPENSSL_mem_debug_push(it->sname ? it->sname : "asn1_item_embed_new");
110 case ASN1_ITYPE_EXTERN:
112 if (ef && ef->asn1_ex_new) {
113 if (!ef->asn1_ex_new(pval, it))
118 case ASN1_ITYPE_PRIMITIVE:
120 if (!asn1_template_new(pval, it->templates))
122 } else if (!asn1_primitive_new(pval, it, embed))
126 case ASN1_ITYPE_MSTRING:
127 if (!asn1_primitive_new(pval, it, embed))
131 case ASN1_ITYPE_CHOICE:
133 i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL);
137 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
138 OPENSSL_mem_debug_pop();
144 memset(*pval, 0, it->size);
146 *pval = OPENSSL_zalloc(it->size);
150 asn1_set_choice_selector(pval, -1, it);
151 if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL))
155 case ASN1_ITYPE_NDEF_SEQUENCE:
156 case ASN1_ITYPE_SEQUENCE:
158 i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL);
162 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
163 OPENSSL_mem_debug_pop();
169 memset(*pval, 0, it->size);
171 *pval = OPENSSL_zalloc(it->size);
175 asn1_do_lock(pval, 0, it);
176 asn1_enc_init(pval, it);
177 for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) {
178 pseqval = asn1_get_field_ptr(pval, tt);
179 if (!asn1_template_new(pseqval, tt))
182 if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL))
186 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
187 OPENSSL_mem_debug_pop();
192 ASN1err(ASN1_F_ASN1_ITEM_EMBED_NEW, ERR_R_MALLOC_FAILURE);
193 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
194 OPENSSL_mem_debug_pop();
199 ASN1err(ASN1_F_ASN1_ITEM_EMBED_NEW, ASN1_R_AUX_ERROR);
200 ASN1_item_ex_free(pval, it);
201 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
202 OPENSSL_mem_debug_pop();
208 static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it)
210 const ASN1_EXTERN_FUNCS *ef;
214 case ASN1_ITYPE_EXTERN:
216 if (ef && ef->asn1_ex_clear)
217 ef->asn1_ex_clear(pval, it);
222 case ASN1_ITYPE_PRIMITIVE:
224 asn1_template_clear(pval, it->templates);
226 asn1_primitive_clear(pval, it);
229 case ASN1_ITYPE_MSTRING:
230 asn1_primitive_clear(pval, it);
233 case ASN1_ITYPE_CHOICE:
234 case ASN1_ITYPE_SEQUENCE:
235 case ASN1_ITYPE_NDEF_SEQUENCE:
241 static int asn1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
243 const ASN1_ITEM *it = ASN1_ITEM_ptr(tt->item);
244 int embed = tt->flags & ASN1_TFLG_EMBED;
248 tval = (ASN1_VALUE *)pval;
251 if (tt->flags & ASN1_TFLG_OPTIONAL) {
252 asn1_template_clear(pval, tt);
255 /* If ANY DEFINED BY nothing to do */
257 if (tt->flags & ASN1_TFLG_ADB_MASK) {
261 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
262 OPENSSL_mem_debug_push(tt->field_name
263 ? tt->field_name : "asn1_template_new");
265 /* If SET OF or SEQUENCE OF, its a STACK */
266 if (tt->flags & ASN1_TFLG_SK_MASK) {
267 STACK_OF(ASN1_VALUE) *skval;
268 skval = sk_ASN1_VALUE_new_null();
270 ASN1err(ASN1_F_ASN1_TEMPLATE_NEW, ERR_R_MALLOC_FAILURE);
274 *pval = (ASN1_VALUE *)skval;
278 /* Otherwise pass it back to the item routine */
279 ret = asn1_item_embed_new(pval, it, embed);
281 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
282 OPENSSL_mem_debug_pop();
287 static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
289 /* If ADB or STACK just NULL the field */
290 if (tt->flags & (ASN1_TFLG_ADB_MASK | ASN1_TFLG_SK_MASK))
293 asn1_item_clear(pval, ASN1_ITEM_ptr(tt->item));
297 * NB: could probably combine most of the real XXX_new() behaviour and junk
298 * all the old functions.
301 static int asn1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
312 const ASN1_PRIMITIVE_FUNCS *pf = it->funcs;
314 return pf->prim_new(pval, it);
317 if (it->itype == ASN1_ITYPE_MSTRING)
323 *pval = (ASN1_VALUE *)OBJ_nid2obj(NID_undef);
327 *(ASN1_BOOLEAN *)pval = it->size;
331 *pval = (ASN1_VALUE *)1;
335 typ = OPENSSL_malloc(sizeof(*typ));
338 typ->value.ptr = NULL;
340 *pval = (ASN1_VALUE *)typ;
345 str = *(ASN1_STRING **)pval;
346 memset(str, 0, sizeof(*str));
348 str->flags = ASN1_STRING_FLAG_EMBED;
350 str = ASN1_STRING_type_new(utype);
351 *pval = (ASN1_VALUE *)str;
353 if (it->itype == ASN1_ITYPE_MSTRING && str)
354 str->flags |= ASN1_STRING_FLAG_MSTRING;
362 static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it)
365 if (it && it->funcs) {
366 const ASN1_PRIMITIVE_FUNCS *pf = it->funcs;
368 pf->prim_clear(pval, it);
373 if (!it || (it->itype == ASN1_ITYPE_MSTRING))
377 if (utype == V_ASN1_BOOLEAN)
378 *(ASN1_BOOLEAN *)pval = it->size;