1 /* crypto/asn1/x_x509.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
61 #include <openssl/evp.h>
62 #include <openssl/asn1_mac.h>
63 #include <openssl/x509.h>
65 static int x509_meth_num = 0;
66 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *x509_meth = NULL;
68 static ASN1_METHOD meth={
70 (char *(*)())d2i_X509,
71 (char *(*)())X509_new,
72 (void (*)()) X509_free};
74 ASN1_METHOD *X509_asn1_meth(void)
79 int i2d_X509(X509 *a, unsigned char **pp)
83 M_ASN1_I2D_len(a->cert_info, i2d_X509_CINF);
84 M_ASN1_I2D_len(a->sig_alg, i2d_X509_ALGOR);
85 M_ASN1_I2D_len(a->signature, i2d_ASN1_BIT_STRING);
87 M_ASN1_I2D_seq_total();
89 M_ASN1_I2D_put(a->cert_info, i2d_X509_CINF);
90 M_ASN1_I2D_put(a->sig_alg, i2d_X509_ALGOR);
91 M_ASN1_I2D_put(a->signature, i2d_ASN1_BIT_STRING);
96 X509 *d2i_X509(X509 **a, unsigned char **pp, long length)
98 M_ASN1_D2I_vars(a,X509 *,X509_new);
101 M_ASN1_D2I_start_sequence();
102 M_ASN1_D2I_get(ret->cert_info,d2i_X509_CINF);
103 M_ASN1_D2I_get(ret->sig_alg,d2i_X509_ALGOR);
104 M_ASN1_D2I_get(ret->signature,d2i_ASN1_BIT_STRING);
105 if (ret->name != NULL) OPENSSL_free(ret->name);
106 ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);
108 M_ASN1_D2I_Finish(a,X509_free,ASN1_F_D2I_X509);
116 M_ASN1_New_Malloc(ret,X509);
120 ret->ex_pathlen = -1;
123 M_ASN1_New(ret->cert_info,X509_CINF_new);
124 M_ASN1_New(ret->sig_alg,X509_ALGOR_new);
125 M_ASN1_New(ret->signature,M_ASN1_BIT_STRING_new);
126 CRYPTO_new_ex_data(x509_meth, ret, &ret->ex_data);
128 M_ASN1_New_Error(ASN1_F_X509_NEW);
131 void X509_free(X509 *a)
135 if (a == NULL) return;
137 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509);
145 fprintf(stderr,"X509_free, bad reference count\n");
150 CRYPTO_free_ex_data(x509_meth,a,&a->ex_data);
151 X509_CINF_free(a->cert_info);
152 X509_ALGOR_free(a->sig_alg);
153 M_ASN1_BIT_STRING_free(a->signature);
154 X509_CERT_AUX_free(a->aux);
156 if (a->name != NULL) OPENSSL_free(a->name);
160 int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
161 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
164 return(CRYPTO_get_ex_new_index(x509_meth_num-1,
165 &x509_meth,argl,argp,new_func,dup_func,free_func));
168 int X509_set_ex_data(X509 *r, int idx, void *arg)
170 return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
173 void *X509_get_ex_data(X509 *r, int idx)
175 return(CRYPTO_get_ex_data(&r->ex_data,idx));
178 /* X509_AUX ASN1 routines. X509_AUX is the name given to
179 * a certificate with extra info tagged on the end. Since these
180 * functions set how a certificate is trusted they should only
181 * be used when the certificate comes from a reliable source
182 * such as local storage.
186 X509 *d2i_X509_AUX(X509 **a, unsigned char **pp, long length)
190 /* Save start position */
192 ret = d2i_X509(a, pp, length);
193 /* If certificate unreadable then forget it */
194 if(!ret) return NULL;
197 if(!length) return ret;
198 if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err;
205 int i2d_X509_AUX(X509 *a, unsigned char **pp)
208 length = i2d_X509(a, pp);
209 if(a) length += i2d_X509_CERT_AUX(a->aux, pp);