Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 | |
| 59 | #include <stdio.h> |
| 60 | #include "cryptlib.h" |
| 61 | #include <openssl/evp.h> |
| 62 | #include <openssl/asn1t.h> |
| 63 | #include <openssl/x509.h> |
| 64 | #include <openssl/x509v3.h> |
| 65 | |
| 66 | ASN1_SEQUENCE_enc(X509_CINF, enc, 0) = { |
| 67 | ASN1_EXP_OPT(X509_CINF, version, ASN1_INTEGER, 0), |
| 68 | ASN1_SIMPLE(X509_CINF, serialNumber, ASN1_INTEGER), |
| 69 | ASN1_SIMPLE(X509_CINF, signature, X509_ALGOR), |
| 70 | ASN1_SIMPLE(X509_CINF, issuer, X509_NAME), |
| 71 | ASN1_SIMPLE(X509_CINF, validity, X509_VAL), |
| 72 | ASN1_SIMPLE(X509_CINF, subject, X509_NAME), |
| 73 | ASN1_SIMPLE(X509_CINF, key, X509_PUBKEY), |
| 74 | ASN1_IMP_OPT(X509_CINF, issuerUID, ASN1_BIT_STRING, 1), |
| 75 | ASN1_IMP_OPT(X509_CINF, subjectUID, ASN1_BIT_STRING, 2), |
| 76 | ASN1_EXP_SEQUENCE_OF_OPT(X509_CINF, extensions, X509_EXTENSION, 3) |
| 77 | } ASN1_SEQUENCE_END_enc(X509_CINF, X509_CINF) |
| 78 | |
| 79 | IMPLEMENT_ASN1_FUNCTIONS(X509_CINF) |
| 80 | /* X509 top level structure needs a bit of customisation */ |
| 81 | |
| 82 | extern void policy_cache_free(X509_POLICY_CACHE *cache); |
| 83 | |
| 84 | static int x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
| 85 | void *exarg) |
| 86 | { |
| 87 | X509 *ret = (X509 *)*pval; |
| 88 | |
| 89 | switch(operation) { |
| 90 | |
| 91 | case ASN1_OP_NEW_POST: |
| 92 | ret->valid=0; |
| 93 | ret->name = NULL; |
| 94 | ret->ex_flags = 0; |
| 95 | ret->ex_pathlen = -1; |
| 96 | ret->skid = NULL; |
| 97 | ret->akid = NULL; |
| 98 | #ifndef OPENSSL_NO_RFC3779 |
| 99 | ret->rfc3779_addr = NULL; |
| 100 | ret->rfc3779_asid = NULL; |
| 101 | #endif |
| 102 | ret->aux = NULL; |
| 103 | ret->crldp = NULL; |
| 104 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data); |
| 105 | break; |
| 106 | |
| 107 | case ASN1_OP_D2I_POST: |
| 108 | if (ret->name != NULL) OPENSSL_free(ret->name); |
| 109 | ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0); |
| 110 | break; |
| 111 | |
| 112 | case ASN1_OP_FREE_POST: |
| 113 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data); |
| 114 | X509_CERT_AUX_free(ret->aux); |
| 115 | ASN1_OCTET_STRING_free(ret->skid); |
| 116 | AUTHORITY_KEYID_free(ret->akid); |
| 117 | CRL_DIST_POINTS_free(ret->crldp); |
| 118 | policy_cache_free(ret->policy_cache); |
| 119 | GENERAL_NAMES_free(ret->altname); |
| 120 | NAME_CONSTRAINTS_free(ret->nc); |
| 121 | #ifndef OPENSSL_NO_RFC3779 |
| 122 | sk_IPAddressFamily_pop_free(ret->rfc3779_addr, IPAddressFamily_free); |
| 123 | ASIdentifiers_free(ret->rfc3779_asid); |
| 124 | #endif |
| 125 | |
| 126 | if (ret->name != NULL) OPENSSL_free(ret->name); |
| 127 | break; |
| 128 | |
| 129 | } |
| 130 | |
| 131 | return 1; |
| 132 | |
| 133 | } |
| 134 | |
| 135 | ASN1_SEQUENCE_ref(X509, x509_cb, CRYPTO_LOCK_X509) = { |
| 136 | ASN1_SIMPLE(X509, cert_info, X509_CINF), |
| 137 | ASN1_SIMPLE(X509, sig_alg, X509_ALGOR), |
| 138 | ASN1_SIMPLE(X509, signature, ASN1_BIT_STRING) |
| 139 | } ASN1_SEQUENCE_END_ref(X509, X509) |
| 140 | |
| 141 | IMPLEMENT_ASN1_FUNCTIONS(X509) |
| 142 | IMPLEMENT_ASN1_DUP_FUNCTION(X509) |
| 143 | |
| 144 | int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, |
| 145 | CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) |
| 146 | { |
| 147 | return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp, |
| 148 | new_func, dup_func, free_func); |
| 149 | } |
| 150 | |
| 151 | int X509_set_ex_data(X509 *r, int idx, void *arg) |
| 152 | { |
| 153 | return(CRYPTO_set_ex_data(&r->ex_data,idx,arg)); |
| 154 | } |
| 155 | |
| 156 | void *X509_get_ex_data(X509 *r, int idx) |
| 157 | { |
| 158 | return(CRYPTO_get_ex_data(&r->ex_data,idx)); |
| 159 | } |
| 160 | |
| 161 | /* X509_AUX ASN1 routines. X509_AUX is the name given to |
| 162 | * a certificate with extra info tagged on the end. Since these |
| 163 | * functions set how a certificate is trusted they should only |
| 164 | * be used when the certificate comes from a reliable source |
| 165 | * such as local storage. |
| 166 | * |
| 167 | */ |
| 168 | |
| 169 | X509 *d2i_X509_AUX(X509 **a, const unsigned char **pp, long length) |
| 170 | { |
| 171 | const unsigned char *q; |
| 172 | X509 *ret; |
| 173 | /* Save start position */ |
| 174 | q = *pp; |
| 175 | ret = d2i_X509(a, pp, length); |
| 176 | /* If certificate unreadable then forget it */ |
| 177 | if(!ret) return NULL; |
| 178 | /* update length */ |
| 179 | length -= *pp - q; |
| 180 | if(!length) return ret; |
| 181 | if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err; |
| 182 | return ret; |
| 183 | err: |
| 184 | X509_free(ret); |
| 185 | return NULL; |
| 186 | } |
| 187 | |
| 188 | int i2d_X509_AUX(X509 *a, unsigned char **pp) |
| 189 | { |
| 190 | int length; |
| 191 | length = i2d_X509(a, pp); |
| 192 | if(a) length += i2d_X509_CERT_AUX(a->aux, pp); |
| 193 | return length; |
| 194 | } |