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      1 /* v3_info.c */
      2 /*
      3  * Written by Dr Stephen N Henson (steve (at) openssl.org) for the OpenSSL project
      4  * 1999.
      5  */
      6 /* ====================================================================
      7  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  *
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  *
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in
     18  *    the documentation and/or other materials provided with the
     19  *    distribution.
     20  *
     21  * 3. All advertising materials mentioning features or use of this
     22  *    software must display the following acknowledgment:
     23  *    "This product includes software developed by the OpenSSL Project
     24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
     25  *
     26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
     27  *    endorse or promote products derived from this software without
     28  *    prior written permission. For written permission, please contact
     29  *    licensing (at) OpenSSL.org.
     30  *
     31  * 5. Products derived from this software may not be called "OpenSSL"
     32  *    nor may "OpenSSL" appear in their names without prior written
     33  *    permission of the OpenSSL Project.
     34  *
     35  * 6. Redistributions of any form whatsoever must retain the following
     36  *    acknowledgment:
     37  *    "This product includes software developed by the OpenSSL Project
     38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
     39  *
     40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
     41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
     44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     51  * OF THE POSSIBILITY OF SUCH DAMAGE.
     52  * ====================================================================
     53  *
     54  * This product includes cryptographic software written by Eric Young
     55  * (eay (at) cryptsoft.com).  This product includes software written by Tim
     56  * Hudson (tjh (at) cryptsoft.com).
     57  *
     58  */
     59 
     60 #include <stdio.h>
     61 #include <string.h>
     62 
     63 #include <openssl/asn1.h>
     64 #include <openssl/asn1t.h>
     65 #include <openssl/buf.h>
     66 #include <openssl/conf.h>
     67 #include <openssl/err.h>
     68 #include <openssl/mem.h>
     69 #include <openssl/obj.h>
     70 #include <openssl/x509v3.h>
     71 
     72 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
     73                                                        *method, AUTHORITY_INFO_ACCESS
     74                                                        *ainfo, STACK_OF(CONF_VALUE)
     75                                                        *ret);
     76 static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
     77                                                         *method,
     78                                                         X509V3_CTX *ctx,
     79                                                         STACK_OF(CONF_VALUE)
     80                                                         *nval);
     81 
     82 const X509V3_EXT_METHOD v3_info = { NID_info_access, X509V3_EXT_MULTILINE,
     83     ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
     84     0, 0, 0, 0,
     85     0, 0,
     86     (X509V3_EXT_I2V) i2v_AUTHORITY_INFO_ACCESS,
     87     (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
     88     0, 0,
     89     NULL
     90 };
     91 
     92 const X509V3_EXT_METHOD v3_sinfo = { NID_sinfo_access, X509V3_EXT_MULTILINE,
     93     ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
     94     0, 0, 0, 0,
     95     0, 0,
     96     (X509V3_EXT_I2V) i2v_AUTHORITY_INFO_ACCESS,
     97     (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
     98     0, 0,
     99     NULL
    100 };
    101 
    102 ASN1_SEQUENCE(ACCESS_DESCRIPTION) = {
    103         ASN1_SIMPLE(ACCESS_DESCRIPTION, method, ASN1_OBJECT),
    104         ASN1_SIMPLE(ACCESS_DESCRIPTION, location, GENERAL_NAME)
    105 } ASN1_SEQUENCE_END(ACCESS_DESCRIPTION)
    106 
    107 IMPLEMENT_ASN1_FUNCTIONS(ACCESS_DESCRIPTION)
    108 
    109 ASN1_ITEM_TEMPLATE(AUTHORITY_INFO_ACCESS) =
    110         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, GeneralNames, ACCESS_DESCRIPTION)
    111 ASN1_ITEM_TEMPLATE_END(AUTHORITY_INFO_ACCESS)
    112 
    113 IMPLEMENT_ASN1_FUNCTIONS(AUTHORITY_INFO_ACCESS)
    114 
    115 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(
    116     X509V3_EXT_METHOD *method, AUTHORITY_INFO_ACCESS *ainfo,
    117     STACK_OF(CONF_VALUE) *ret)
    118 {
    119     ACCESS_DESCRIPTION *desc;
    120     size_t i;
    121     int nlen;
    122     char objtmp[80], *ntmp;
    123     CONF_VALUE *vtmp;
    124     STACK_OF(CONF_VALUE) *tret = ret;
    125 
    126     for (i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {
    127         STACK_OF(CONF_VALUE) *tmp;
    128 
    129         desc = sk_ACCESS_DESCRIPTION_value(ainfo, i);
    130         tmp = i2v_GENERAL_NAME(method, desc->location, tret);
    131         if (tmp == NULL)
    132             goto err;
    133         tret = tmp;
    134         vtmp = sk_CONF_VALUE_value(tret, i);
    135         i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method);
    136         nlen = strlen(objtmp) + strlen(vtmp->name) + 5;
    137         ntmp = OPENSSL_malloc(nlen);
    138         if (ntmp == NULL)
    139             goto err;
    140         BUF_strlcpy(ntmp, objtmp, nlen);
    141         BUF_strlcat(ntmp, " - ", nlen);
    142         BUF_strlcat(ntmp, vtmp->name, nlen);
    143         OPENSSL_free(vtmp->name);
    144         vtmp->name = ntmp;
    145 
    146     }
    147     if (ret == NULL && tret == NULL)
    148         return sk_CONF_VALUE_new_null();
    149 
    150     return tret;
    151  err:
    152     OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
    153     if (ret == NULL && tret != NULL)
    154         sk_CONF_VALUE_pop_free(tret, X509V3_conf_free);
    155     return NULL;
    156 }
    157 
    158 static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
    159                                                         *method,
    160                                                         X509V3_CTX *ctx,
    161                                                         STACK_OF(CONF_VALUE)
    162                                                         *nval)
    163 {
    164     AUTHORITY_INFO_ACCESS *ainfo = NULL;
    165     CONF_VALUE *cnf, ctmp;
    166     ACCESS_DESCRIPTION *acc;
    167     size_t i;
    168     int objlen;
    169     char *objtmp, *ptmp;
    170     if (!(ainfo = sk_ACCESS_DESCRIPTION_new_null())) {
    171         OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
    172         return NULL;
    173     }
    174     for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
    175         cnf = sk_CONF_VALUE_value(nval, i);
    176         if (!(acc = ACCESS_DESCRIPTION_new())
    177             || !sk_ACCESS_DESCRIPTION_push(ainfo, acc)) {
    178             OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
    179             goto err;
    180         }
    181         ptmp = strchr(cnf->name, ';');
    182         if (!ptmp) {
    183             OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_SYNTAX);
    184             goto err;
    185         }
    186         objlen = ptmp - cnf->name;
    187         ctmp.name = ptmp + 1;
    188         ctmp.value = cnf->value;
    189         if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0))
    190             goto err;
    191         if (!(objtmp = OPENSSL_malloc(objlen + 1))) {
    192             OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
    193             goto err;
    194         }
    195         BUF_strlcpy(objtmp, cnf->name, objlen + 1);
    196         acc->method = OBJ_txt2obj(objtmp, 0);
    197         if (!acc->method) {
    198             OPENSSL_PUT_ERROR(X509V3, X509V3_R_BAD_OBJECT);
    199             ERR_add_error_data(2, "value=", objtmp);
    200             OPENSSL_free(objtmp);
    201             goto err;
    202         }
    203         OPENSSL_free(objtmp);
    204 
    205     }
    206     return ainfo;
    207  err:
    208     sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free);
    209     return NULL;
    210 }
    211 
    212 int i2a_ACCESS_DESCRIPTION(BIO *bp, ACCESS_DESCRIPTION *a)
    213 {
    214     i2a_ASN1_OBJECT(bp, a->method);
    215 #ifdef UNDEF
    216     i2a_GENERAL_NAME(bp, a->location);
    217 #endif
    218     return 2;
    219 }
    220