1 /* crypto/asn1/x_x509.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.] */
57
58 #include <stdio.h>
59
60 #include <openssl/asn1t.h>
61 #include <openssl/evp.h>
62 #include <openssl/mem.h>
63 #include <openssl/obj.h>
64 #include <openssl/thread.h>
65 #include <openssl/x509.h>
66 #include <openssl/x509v3.h>
67
68 #include "../internal.h"
69
70
71 static CRYPTO_EX_DATA_CLASS g_ex_data_class = CRYPTO_EX_DATA_CLASS_INIT;
72
73 ASN1_SEQUENCE_enc(X509_CINF, enc, 0) = {
74 ASN1_EXP_OPT(X509_CINF, version, ASN1_INTEGER, 0),
75 ASN1_SIMPLE(X509_CINF, serialNumber, ASN1_INTEGER),
76 ASN1_SIMPLE(X509_CINF, signature, X509_ALGOR),
77 ASN1_SIMPLE(X509_CINF, issuer, X509_NAME),
78 ASN1_SIMPLE(X509_CINF, validity, X509_VAL),
79 ASN1_SIMPLE(X509_CINF, subject, X509_NAME),
80 ASN1_SIMPLE(X509_CINF, key, X509_PUBKEY),
81 ASN1_IMP_OPT(X509_CINF, issuerUID, ASN1_BIT_STRING, 1),
82 ASN1_IMP_OPT(X509_CINF, subjectUID, ASN1_BIT_STRING, 2),
83 ASN1_EXP_SEQUENCE_OF_OPT(X509_CINF, extensions, X509_EXTENSION, 3)
84 } ASN1_SEQUENCE_END_enc(X509_CINF, X509_CINF)
85
86 IMPLEMENT_ASN1_FUNCTIONS(X509_CINF)
87 /* X509 top level structure needs a bit of customisation */
88
89 extern void policy_cache_free(X509_POLICY_CACHE *cache);
90
x509_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it,void * exarg)91 static int x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
92 void *exarg)
93 {
94 X509 *ret = (X509 *)*pval;
95
96 switch(operation) {
97
98 case ASN1_OP_NEW_POST:
99 ret->valid=0;
100 ret->name = NULL;
101 ret->ex_flags = 0;
102 ret->ex_pathlen = -1;
103 ret->skid = NULL;
104 ret->akid = NULL;
105 ret->aux = NULL;
106 ret->crldp = NULL;
107 CRYPTO_new_ex_data(&ret->ex_data);
108 break;
109
110 case ASN1_OP_D2I_POST:
111 if (ret->name != NULL) OPENSSL_free(ret->name);
112 ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);
113 break;
114
115 case ASN1_OP_FREE_POST:
116 CRYPTO_free_ex_data(&g_ex_data_class, ret, &ret->ex_data);
117 X509_CERT_AUX_free(ret->aux);
118 ASN1_OCTET_STRING_free(ret->skid);
119 AUTHORITY_KEYID_free(ret->akid);
120 CRL_DIST_POINTS_free(ret->crldp);
121 policy_cache_free(ret->policy_cache);
122 GENERAL_NAMES_free(ret->altname);
123 NAME_CONSTRAINTS_free(ret->nc);
124
125 if (ret->name != NULL) OPENSSL_free(ret->name);
126 break;
127
128 }
129
130 return 1;
131
132 }
133
134 ASN1_SEQUENCE_ref(X509, x509_cb) = {
135 ASN1_SIMPLE(X509, cert_info, X509_CINF),
136 ASN1_SIMPLE(X509, sig_alg, X509_ALGOR),
137 ASN1_SIMPLE(X509, signature, ASN1_BIT_STRING)
138 } ASN1_SEQUENCE_END_ref(X509, X509)
139
140 IMPLEMENT_ASN1_FUNCTIONS(X509)
141 IMPLEMENT_ASN1_DUP_FUNCTION(X509)
142
143 X509 *X509_up_ref(X509 *x)
144 {
145 CRYPTO_refcount_inc(&x->references);
146 return x;
147 }
148
X509_get_ex_new_index(long argl,void * argp,CRYPTO_EX_unused * unused,CRYPTO_EX_dup * dup_func,CRYPTO_EX_free * free_func)149 int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_unused *unused,
150 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
151 {
152 int index;
153 if (!CRYPTO_get_ex_new_index(&g_ex_data_class, &index, argl, argp,
154 dup_func, free_func))
155 {
156 return -1;
157 }
158 return index;
159 }
160
X509_set_ex_data(X509 * r,int idx,void * arg)161 int X509_set_ex_data(X509 *r, int idx, void *arg)
162 {
163 return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
164 }
165
X509_get_ex_data(X509 * r,int idx)166 void *X509_get_ex_data(X509 *r, int idx)
167 {
168 return(CRYPTO_get_ex_data(&r->ex_data,idx));
169 }
170
171 /* X509_AUX ASN1 routines. X509_AUX is the name given to
172 * a certificate with extra info tagged on the end. Since these
173 * functions set how a certificate is trusted they should only
174 * be used when the certificate comes from a reliable source
175 * such as local storage.
176 *
177 */
178
d2i_X509_AUX(X509 ** a,const unsigned char ** pp,long length)179 X509 *d2i_X509_AUX(X509 **a, const unsigned char **pp, long length)
180 {
181 const unsigned char *q = *pp;
182 X509 *ret;
183 int freeret = 0;
184
185 if (!a || *a == NULL)
186 freeret = 1;
187 ret = d2i_X509(a, &q, length);
188 /* If certificate unreadable then forget it */
189 if(!ret) return NULL;
190 /* update length */
191 length -= q - *pp;
192 /* Parse auxiliary information if there is any. */
193 if (length > 0 && !d2i_X509_CERT_AUX(&ret->aux, &q, length))
194 goto err;
195 *pp = q;
196 return ret;
197 err:
198 if (freeret)
199 {
200 X509_free(ret);
201 if (a)
202 *a = NULL;
203 }
204 return NULL;
205 }
206
i2d_X509_AUX(X509 * a,unsigned char ** pp)207 int i2d_X509_AUX(X509 *a, unsigned char **pp)
208 {
209 int length;
210 length = i2d_X509(a, pp);
211 if(a) length += i2d_X509_CERT_AUX(a->aux, pp);
212 return length;
213 }
214
X509_get0_signature(ASN1_BIT_STRING ** psig,X509_ALGOR ** palg,const X509 * x)215 void X509_get0_signature(ASN1_BIT_STRING **psig, X509_ALGOR **palg,
216 const X509 *x)
217 {
218 if (psig)
219 *psig = x->signature;
220 if (palg)
221 *palg = x->sig_alg;
222 }
223
X509_get_signature_nid(const X509 * x)224 int X509_get_signature_nid(const X509 *x)
225 {
226 return OBJ_obj2nid(x->sig_alg->algorithm);
227 }
228