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/* $OpenBSD: tasn_new.c,v 1.17 2017/01/29 17:49:22 beck Exp $ */ |
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
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* project 2000. |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 2000-2004 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* licensing@OpenSSL.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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#include <stddef.h> |
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#include <openssl/asn1.h> |
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#include <openssl/objects.h> |
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#include <openssl/err.h> |
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#include <openssl/asn1t.h> |
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#include <string.h> |
66 |
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67 |
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static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it, |
68 |
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int combine); |
69 |
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static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it); |
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static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt); |
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static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it); |
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ASN1_VALUE * |
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ASN1_item_new(const ASN1_ITEM *it) |
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{ |
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390670 |
ASN1_VALUE *ret = NULL; |
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✓✗ |
195335 |
if (ASN1_item_ex_new(&ret, it) > 0) |
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|
195335 |
return ret; |
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return NULL; |
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195335 |
} |
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|
82 |
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/* Allocate an ASN1 structure */ |
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84 |
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int |
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ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it) |
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{ |
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778742 |
return asn1_item_ex_combine_new(pval, it, 0); |
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} |
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static int |
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asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it, int combine) |
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{ |
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const ASN1_TEMPLATE *tt = NULL; |
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const ASN1_EXTERN_FUNCS *ef; |
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2509710 |
const ASN1_AUX *aux = it->funcs; |
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ASN1_aux_cb *asn1_cb = NULL; |
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ASN1_VALUE **pseqval; |
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int i; |
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|
100 |
✓✓✓✓
|
1348883 |
if (aux != NULL && aux->asn1_cb != NULL) |
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47032 |
asn1_cb = aux->asn1_cb; |
102 |
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103 |
✓✓ |
1254855 |
if (!combine) |
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1254703 |
*pval = NULL; |
105 |
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106 |
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#ifdef CRYPTO_MDEBUG |
107 |
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if (it->sname) |
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CRYPTO_push_info(it->sname); |
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#endif |
110 |
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|
111 |
✓✓✓✓ ✗✓✓ |
2505436 |
switch (it->itype) { |
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case ASN1_ITYPE_EXTERN: |
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31376 |
ef = it->funcs; |
114 |
✓✗✓✗
|
62752 |
if (ef && ef->asn1_ex_new) { |
115 |
✓✗ |
31376 |
if (!ef->asn1_ex_new(pval, it)) |
116 |
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goto memerr; |
117 |
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} |
118 |
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break; |
119 |
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120 |
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case ASN1_ITYPE_PRIMITIVE: |
121 |
✗✓ |
523294 |
if (it->templates) { |
122 |
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if (!ASN1_template_new(pval, it->templates)) |
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goto memerr; |
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✓✗ |
523294 |
} else if (!ASN1_primitive_new(pval, it)) |
125 |
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goto memerr; |
126 |
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break; |
127 |
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128 |
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case ASN1_ITYPE_MSTRING: |
129 |
✓✗ |
275916 |
if (!ASN1_primitive_new(pval, it)) |
130 |
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goto memerr; |
131 |
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break; |
132 |
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133 |
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case ASN1_ITYPE_CHOICE: |
134 |
✗✓ |
1660 |
if (asn1_cb) { |
135 |
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i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL); |
136 |
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if (!i) |
137 |
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goto auxerr; |
138 |
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if (i == 2) { |
139 |
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#ifdef CRYPTO_MDEBUG |
140 |
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if (it->sname) |
141 |
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CRYPTO_pop_info(); |
142 |
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#endif |
143 |
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return 1; |
144 |
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} |
145 |
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} |
146 |
✓✓ |
1660 |
if (!combine) { |
147 |
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1508 |
*pval = calloc(1, it->size); |
148 |
✓✗ |
1508 |
if (!*pval) |
149 |
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goto memerr; |
150 |
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} |
151 |
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1660 |
asn1_set_choice_selector(pval, -1, it); |
152 |
✗✓✗✗
|
1660 |
if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL)) |
153 |
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goto auxerr; |
154 |
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break; |
155 |
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156 |
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case ASN1_ITYPE_NDEF_SEQUENCE: |
157 |
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case ASN1_ITYPE_SEQUENCE: |
158 |
✓✓ |
422609 |
if (asn1_cb) { |
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36158 |
i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL); |
160 |
✓✗ |
36158 |
if (!i) |
161 |
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goto auxerr; |
162 |
✓✓ |
36158 |
if (i == 2) { |
163 |
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#ifdef CRYPTO_MDEBUG |
164 |
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if (it->sname) |
165 |
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CRYPTO_pop_info(); |
166 |
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#endif |
167 |
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4274 |
return 1; |
168 |
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} |
169 |
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} |
170 |
✓✗ |
418335 |
if (!combine) { |
171 |
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418335 |
*pval = calloc(1, it->size); |
172 |
✓✗ |
418335 |
if (!*pval) |
173 |
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goto memerr; |
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418335 |
asn1_do_lock(pval, 0, it); |
175 |
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418335 |
asn1_enc_init(pval, it); |
176 |
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418335 |
} |
177 |
✓✓ |
2906810 |
for (i = 0, tt = it->templates; i < it->tcount; tt++, i++) { |
178 |
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1035070 |
pseqval = asn1_get_field_ptr(pval, tt); |
179 |
✓✗ |
1035070 |
if (!ASN1_template_new(pseqval, tt)) |
180 |
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goto memerr; |
181 |
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} |
182 |
✓✓✓✗
|
450219 |
if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL)) |
183 |
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goto auxerr; |
184 |
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break; |
185 |
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} |
186 |
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#ifdef CRYPTO_MDEBUG |
187 |
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if (it->sname) |
188 |
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CRYPTO_pop_info(); |
189 |
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#endif |
190 |
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1250581 |
return 1; |
191 |
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192 |
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memerr: |
193 |
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ASN1error(ERR_R_MALLOC_FAILURE); |
194 |
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#ifdef CRYPTO_MDEBUG |
195 |
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if (it->sname) |
196 |
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CRYPTO_pop_info(); |
197 |
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#endif |
198 |
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return 0; |
199 |
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|
200 |
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auxerr: |
201 |
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ASN1error(ASN1_R_AUX_ERROR); |
202 |
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ASN1_item_ex_free(pval, it); |
203 |
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#ifdef CRYPTO_MDEBUG |
204 |
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if (it->sname) |
205 |
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CRYPTO_pop_info(); |
206 |
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#endif |
207 |
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return 0; |
208 |
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209 |
|
1254855 |
} |
210 |
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211 |
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static void |
212 |
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asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it) |
213 |
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{ |
214 |
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const ASN1_EXTERN_FUNCS *ef; |
215 |
|
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|
216 |
✗✓✓✗ ✗✓✓ |
452604 |
switch (it->itype) { |
217 |
|
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case ASN1_ITYPE_EXTERN: |
218 |
|
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ef = it->funcs; |
219 |
|
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if (ef && ef->asn1_ex_clear) |
220 |
|
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ef->asn1_ex_clear(pval, it); |
221 |
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else |
222 |
|
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*pval = NULL; |
223 |
|
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break; |
224 |
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|
225 |
|
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case ASN1_ITYPE_PRIMITIVE: |
226 |
✗✓ |
149842 |
if (it->templates) |
227 |
|
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asn1_template_clear(pval, it->templates); |
228 |
|
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else |
229 |
|
149842 |
asn1_primitive_clear(pval, it); |
230 |
|
|
break; |
231 |
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|
232 |
|
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case ASN1_ITYPE_MSTRING: |
233 |
|
8 |
asn1_primitive_clear(pval, it); |
234 |
|
8 |
break; |
235 |
|
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|
236 |
|
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case ASN1_ITYPE_CHOICE: |
237 |
|
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case ASN1_ITYPE_SEQUENCE: |
238 |
|
|
case ASN1_ITYPE_NDEF_SEQUENCE: |
239 |
|
1018 |
*pval = NULL; |
240 |
|
1018 |
break; |
241 |
|
|
} |
242 |
|
150868 |
} |
243 |
|
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|
244 |
|
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int |
245 |
|
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ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) |
246 |
|
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{ |
247 |
|
2070140 |
const ASN1_ITEM *it = tt->item; |
248 |
|
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int ret; |
249 |
|
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|
250 |
✓✓ |
1035070 |
if (tt->flags & ASN1_TFLG_OPTIONAL) { |
251 |
|
167452 |
asn1_template_clear(pval, tt); |
252 |
|
167452 |
return 1; |
253 |
|
|
} |
254 |
|
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/* If ANY DEFINED BY nothing to do */ |
255 |
|
|
|
256 |
✓✓ |
867618 |
if (tt->flags & ASN1_TFLG_ADB_MASK) { |
257 |
|
2026 |
*pval = NULL; |
258 |
|
2026 |
return 1; |
259 |
|
|
} |
260 |
|
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#ifdef CRYPTO_MDEBUG |
261 |
|
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if (tt->field_name) |
262 |
|
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CRYPTO_push_info(tt->field_name); |
263 |
|
|
#endif |
264 |
|
|
/* If SET OF or SEQUENCE OF, its a STACK */ |
265 |
✓✓ |
865592 |
if (tt->flags & ASN1_TFLG_SK_MASK) { |
266 |
|
|
STACK_OF(ASN1_VALUE) *skval; |
267 |
|
108 |
skval = sk_ASN1_VALUE_new_null(); |
268 |
✗✓ |
108 |
if (!skval) { |
269 |
|
|
ASN1error(ERR_R_MALLOC_FAILURE); |
270 |
|
|
ret = 0; |
271 |
|
|
goto done; |
272 |
|
|
} |
273 |
|
108 |
*pval = (ASN1_VALUE *)skval; |
274 |
|
|
ret = 1; |
275 |
✓✗ |
108 |
goto done; |
276 |
|
|
} |
277 |
|
|
/* Otherwise pass it back to the item routine */ |
278 |
|
865484 |
ret = asn1_item_ex_combine_new(pval, it, tt->flags & ASN1_TFLG_COMBINE); |
279 |
|
|
done: |
280 |
|
|
#ifdef CRYPTO_MDEBUG |
281 |
|
|
if (it->sname) |
282 |
|
|
CRYPTO_pop_info(); |
283 |
|
|
#endif |
284 |
|
865592 |
return ret; |
285 |
|
1035070 |
} |
286 |
|
|
|
287 |
|
|
static void |
288 |
|
|
asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt) |
289 |
|
|
{ |
290 |
|
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/* If ADB or STACK just NULL the field */ |
291 |
✓✓ |
334904 |
if (tt->flags & (ASN1_TFLG_ADB_MASK|ASN1_TFLG_SK_MASK)) |
292 |
|
16584 |
*pval = NULL; |
293 |
|
|
else |
294 |
|
150868 |
asn1_item_clear(pval, tt->item); |
295 |
|
167452 |
} |
296 |
|
|
|
297 |
|
|
|
298 |
|
|
/* NB: could probably combine most of the real XXX_new() behaviour and junk |
299 |
|
|
* all the old functions. |
300 |
|
|
*/ |
301 |
|
|
|
302 |
|
|
int |
303 |
|
|
ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it) |
304 |
|
|
{ |
305 |
|
|
ASN1_TYPE *typ; |
306 |
|
|
ASN1_STRING *str; |
307 |
|
|
int utype; |
308 |
|
|
|
309 |
✓✗✓✓
|
2397630 |
if (it && it->funcs) { |
310 |
|
10874 |
const ASN1_PRIMITIVE_FUNCS *pf = it->funcs; |
311 |
✓✗ |
10874 |
if (pf->prim_new) |
312 |
|
10874 |
return pf->prim_new(pval, it); |
313 |
|
|
} |
314 |
|
|
|
315 |
✓✗✓✓
|
1576672 |
if (!it || (it->itype == ASN1_ITYPE_MSTRING)) |
316 |
|
275916 |
utype = V_ASN1_UNDEF; |
317 |
|
|
else |
318 |
|
512420 |
utype = it->utype; |
319 |
✓✗✓✓ ✓ |
788336 |
switch (utype) { |
320 |
|
|
case V_ASN1_OBJECT: |
321 |
|
344132 |
*pval = (ASN1_VALUE *)OBJ_nid2obj(NID_undef); |
322 |
|
344132 |
return 1; |
323 |
|
|
|
324 |
|
|
case V_ASN1_BOOLEAN: |
325 |
|
|
*(ASN1_BOOLEAN *)pval = it->size; |
326 |
|
|
return 1; |
327 |
|
|
|
328 |
|
|
case V_ASN1_NULL: |
329 |
|
4 |
*pval = (ASN1_VALUE *)1; |
330 |
|
4 |
return 1; |
331 |
|
|
|
332 |
|
|
case V_ASN1_ANY: |
333 |
|
46518 |
typ = malloc(sizeof(ASN1_TYPE)); |
334 |
✓✗ |
46518 |
if (typ != NULL) { |
335 |
|
46518 |
typ->value.ptr = NULL; |
336 |
|
46518 |
typ->type = V_ASN1_UNDEF; |
337 |
|
46518 |
} |
338 |
|
46518 |
*pval = (ASN1_VALUE *)typ; |
339 |
|
46518 |
break; |
340 |
|
|
|
341 |
|
|
default: |
342 |
|
397682 |
str = ASN1_STRING_type_new(utype); |
343 |
✓✗✓✓
|
1193046 |
if (it != NULL && it->itype == ASN1_ITYPE_MSTRING && |
344 |
|
397682 |
str != NULL) |
345 |
|
275916 |
str->flags |= ASN1_STRING_FLAG_MSTRING; |
346 |
|
397682 |
*pval = (ASN1_VALUE *)str; |
347 |
|
397682 |
break; |
348 |
|
|
} |
349 |
✓✗ |
444200 |
if (*pval) |
350 |
|
444200 |
return 1; |
351 |
|
|
return 0; |
352 |
|
799210 |
} |
353 |
|
|
|
354 |
|
|
static void |
355 |
|
|
asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it) |
356 |
|
|
{ |
357 |
|
|
int utype; |
358 |
✓✗✗✓
|
449550 |
if (it && it->funcs) { |
359 |
|
|
const ASN1_PRIMITIVE_FUNCS *pf = it->funcs; |
360 |
|
|
if (pf->prim_clear) |
361 |
|
|
pf->prim_clear(pval, it); |
362 |
|
|
else |
363 |
|
|
*pval = NULL; |
364 |
|
|
return; |
365 |
|
|
} |
366 |
✓✗✓✓
|
299700 |
if (!it || (it->itype == ASN1_ITYPE_MSTRING)) |
367 |
|
8 |
utype = V_ASN1_UNDEF; |
368 |
|
|
else |
369 |
|
149842 |
utype = it->utype; |
370 |
✓✓ |
149850 |
if (utype == V_ASN1_BOOLEAN) |
371 |
|
47942 |
*(ASN1_BOOLEAN *)pval = it->size; |
372 |
|
|
else |
373 |
|
101908 |
*pval = NULL; |
374 |
|
299700 |
} |