1 /* crypto/asn1/x_x509.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 69 ASN1_SEQUENCE_enc(X509_CINF, enc, 0) = { 70 ASN1_EXP_OPT(X509_CINF, version, ASN1_INTEGER, 0), 71 ASN1_SIMPLE(X509_CINF, serialNumber, ASN1_INTEGER), 72 ASN1_SIMPLE(X509_CINF, signature, X509_ALGOR), 73 ASN1_SIMPLE(X509_CINF, issuer, X509_NAME), 74 ASN1_SIMPLE(X509_CINF, validity, X509_VAL), 75 ASN1_SIMPLE(X509_CINF, subject, X509_NAME), 76 ASN1_SIMPLE(X509_CINF, key, X509_PUBKEY), 77 ASN1_IMP_OPT(X509_CINF, issuerUID, ASN1_BIT_STRING, 1), 78 ASN1_IMP_OPT(X509_CINF, subjectUID, ASN1_BIT_STRING, 2), 79 ASN1_EXP_SEQUENCE_OF_OPT(X509_CINF, extensions, X509_EXTENSION, 3) 80 } ASN1_SEQUENCE_END_enc(X509_CINF, X509_CINF) 81 82 IMPLEMENT_ASN1_FUNCTIONS(X509_CINF) 83 /* X509 top level structure needs a bit of customisation */ 84 85 extern void policy_cache_free(X509_POLICY_CACHE *cache); 86 87 static int x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, 88 void *exarg) 89 { 90 X509 *ret = (X509 *)*pval; 91 92 switch(operation) { 93 94 case ASN1_OP_NEW_POST: 95 ret->valid=0; 96 ret->name = NULL; 97 ret->ex_flags = 0; 98 ret->ex_pathlen = -1; 99 ret->skid = NULL; 100 ret->akid = NULL; 101 ret->aux = NULL; 102 ret->crldp = NULL; 103 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data); 104 break; 105 106 case ASN1_OP_D2I_POST: 107 if (ret->name != NULL) OPENSSL_free(ret->name); 108 ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0); 109 break; 110 111 case ASN1_OP_FREE_POST: 112 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data); 113 X509_CERT_AUX_free(ret->aux); 114 ASN1_OCTET_STRING_free(ret->skid); 115 AUTHORITY_KEYID_free(ret->akid); 116 CRL_DIST_POINTS_free(ret->crldp); 117 policy_cache_free(ret->policy_cache); 118 GENERAL_NAMES_free(ret->altname); 119 NAME_CONSTRAINTS_free(ret->nc); 120 121 if (ret->name != NULL) OPENSSL_free(ret->name); 122 break; 123 124 } 125 126 return 1; 127 128 } 129 130 ASN1_SEQUENCE_ref(X509, x509_cb, CRYPTO_LOCK_X509) = { 131 ASN1_SIMPLE(X509, cert_info, X509_CINF), 132 ASN1_SIMPLE(X509, sig_alg, X509_ALGOR), 133 ASN1_SIMPLE(X509, signature, ASN1_BIT_STRING) 134 } ASN1_SEQUENCE_END_ref(X509, X509) 135 136 IMPLEMENT_ASN1_FUNCTIONS(X509) 137 IMPLEMENT_ASN1_DUP_FUNCTION(X509) 138 139 X509 *X509_up_ref(X509 *x) 140 { 141 CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509); 142 return x; 143 } 144 145 int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 146 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) 147 { 148 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp, 149 new_func, dup_func, free_func); 150 } 151 152 int X509_set_ex_data(X509 *r, int idx, void *arg) 153 { 154 return(CRYPTO_set_ex_data(&r->ex_data,idx,arg)); 155 } 156 157 void *X509_get_ex_data(X509 *r, int idx) 158 { 159 return(CRYPTO_get_ex_data(&r->ex_data,idx)); 160 } 161 162 /* X509_AUX ASN1 routines. X509_AUX is the name given to 163 * a certificate with extra info tagged on the end. Since these 164 * functions set how a certificate is trusted they should only 165 * be used when the certificate comes from a reliable source 166 * such as local storage. 167 * 168 */ 169 170 X509 *d2i_X509_AUX(X509 **a, const unsigned char **pp, long length) 171 { 172 const unsigned char *q; 173 X509 *ret; 174 /* Save start position */ 175 q = *pp; 176 ret = d2i_X509(a, pp, length); 177 /* If certificate unreadable then forget it */ 178 if(!ret) return NULL; 179 /* update length */ 180 length -= *pp - q; 181 if(!length) return ret; 182 if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err; 183 return ret; 184 err: 185 X509_free(ret); 186 return NULL; 187 } 188 189 int i2d_X509_AUX(X509 *a, unsigned char **pp) 190 { 191 int length; 192 length = i2d_X509(a, pp); 193 if(a) length += i2d_X509_CERT_AUX(a->aux, pp); 194 return length; 195 } 196 197 void X509_get0_signature(ASN1_BIT_STRING **psig, X509_ALGOR **palg, 198 const X509 *x) 199 { 200 if (psig) 201 *psig = x->signature; 202 if (palg) 203 *palg = x->sig_alg; 204 } 205 206 int X509_get_signature_nid(const X509 *x) 207 { 208 return OBJ_obj2nid(x->sig_alg->algorithm); 209 } 210
