release/src/router/openssl/crypto/x509/x509_v3.c

   1 /* crypto/x509/x509_v3.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 <openssl/stack.h>
  61 #include "cryptlib.h"
  62 #include <openssl/asn1.h>
  63 #include <openssl/objects.h>
  64 #include <openssl/evp.h>
  65 #include <openssl/x509.h>
  66 #include <openssl/x509v3.h>
  67
  68 int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x)
  69         {
  70         if (x == NULL) return(0);
  71         return(sk_X509_EXTENSION_num(x));
  72         }
  73
  74 int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid,
  75                           int lastpos)
  76         {
  77         ASN1_OBJECT *obj;
  78
  79         obj=OBJ_nid2obj(nid);
  80         if (obj == NULL) return(-2);
  81         return(X509v3_get_ext_by_OBJ(x,obj,lastpos));
  82         }
  83
  84 int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk, ASN1_OBJECT *obj,
  85                           int lastpos)
  86         {
  87         int n;
  88         X509_EXTENSION *ex;
  89
  90         if (sk == NULL) return(-1);
  91         lastpos++;
  92         if (lastpos < 0)
  93                 lastpos=0;
  94         n=sk_X509_EXTENSION_num(sk);
  95         for ( ; lastpos < n; lastpos++)
  96                 {
  97                 ex=sk_X509_EXTENSION_value(sk,lastpos);
  98                 if (OBJ_cmp(ex->object,obj) == 0)
  99                         return(lastpos);
 100                 }
 101         return(-1);
 102         }
 103
 104 int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit,
 105                                int lastpos)
 106         {
 107         int n;
 108         X509_EXTENSION *ex;
 109
 110         if (sk == NULL) return(-1);
 111         lastpos++;
 112         if (lastpos < 0)
 113                 lastpos=0;
 114         n=sk_X509_EXTENSION_num(sk);
 115         for ( ; lastpos < n; lastpos++)
 116                 {
 117                 ex=sk_X509_EXTENSION_value(sk,lastpos);
 118                 if (    ((ex->critical > 0) && crit) ||
 119                         ((ex->critical <= 0) && !crit))
 120                         return(lastpos);
 121                 }
 122         return(-1);
 123         }
 124
 125 X509_EXTENSION *X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc)
 126         {
 127         if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
 128                 return NULL;
 129         else
 130                 return sk_X509_EXTENSION_value(x,loc);
 131         }
 132
 133 X509_EXTENSION *X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc)
 134         {
 135         X509_EXTENSION *ret;
 136
 137         if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0)
 138                 return(NULL);
 139         ret=sk_X509_EXTENSION_delete(x,loc);
 140         return(ret);
 141         }
 142
 143 STACK_OF(X509_EXTENSION) *X509v3_add_ext(STACK_OF(X509_EXTENSION) **x,
 144                                          X509_EXTENSION *ex, int loc)
 145         {
 146         X509_EXTENSION *new_ex=NULL;
 147         int n;
 148         STACK_OF(X509_EXTENSION) *sk=NULL;
 149
 150         if (x == NULL)
 151                 {
 152                 X509err(X509_F_X509V3_ADD_EXT,ERR_R_PASSED_NULL_PARAMETER);
 153                 goto err2;
 154                 }
 155
 156         if (*x == NULL)
 157                 {
 158                 if ((sk=sk_X509_EXTENSION_new_null()) == NULL)
 159                         goto err;
 160                 }
 161         else
 162                 sk= *x;
 163
 164         n=sk_X509_EXTENSION_num(sk);
 165         if (loc > n) loc=n;
 166         else if (loc < 0) loc=n;
 167
 168         if ((new_ex=X509_EXTENSION_dup(ex)) == NULL)
 169                 goto err2;
 170         if (!sk_X509_EXTENSION_insert(sk,new_ex,loc))
 171                 goto err;
 172         if (*x == NULL)
 173                 *x=sk;
 174         return(sk);
 175 err:
 176         X509err(X509_F_X509V3_ADD_EXT,ERR_R_MALLOC_FAILURE);
 177 err2:
 178         if (new_ex != NULL) X509_EXTENSION_free(new_ex);
 179         if (sk != NULL) sk_X509_EXTENSION_free(sk);
 180         return(NULL);
 181         }
 182
 183 X509_EXTENSION *X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid,
 184              int crit, ASN1_OCTET_STRING *data)
 185         {
 186         ASN1_OBJECT *obj;
 187         X509_EXTENSION *ret;
 188
 189         obj=OBJ_nid2obj(nid);
 190         if (obj == NULL)
 191                 {
 192                 X509err(X509_F_X509_EXTENSION_CREATE_BY_NID,X509_R_UNKNOWN_NID);
 193                 return(NULL);
 194                 }
 195         ret=X509_EXTENSION_create_by_OBJ(ex,obj,crit,data);
 196         if (ret == NULL) ASN1_OBJECT_free(obj);
 197         return(ret);
 198         }
 199
 200 X509_EXTENSION *X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex,
 201              ASN1_OBJECT *obj, int crit, ASN1_OCTET_STRING *data)
 202         {
 203         X509_EXTENSION *ret;
 204
 205         if ((ex == NULL) || (*ex == NULL))
 206                 {
 207                 if ((ret=X509_EXTENSION_new()) == NULL)
 208                         {
 209                         X509err(X509_F_X509_EXTENSION_CREATE_BY_OBJ,ERR_R_MALLOC_FAILURE);
 210                         return(NULL);
 211                         }
 212                 }
 213         else
 214                 ret= *ex;
 215
 216         if (!X509_EXTENSION_set_object(ret,obj))
 217                 goto err;
 218         if (!X509_EXTENSION_set_critical(ret,crit))
 219                 goto err;
 220         if (!X509_EXTENSION_set_data(ret,data))
 221                 goto err;
 222
 223         if ((ex != NULL) && (*ex == NULL)) *ex=ret;
 224         return(ret);
 225 err:
 226         if ((ex == NULL) || (ret != *ex))
 227                 X509_EXTENSION_free(ret);
 228         return(NULL);
 229         }
 230
 231 int X509_EXTENSION_set_object(X509_EXTENSION *ex, ASN1_OBJECT *obj)
 232         {
 233         if ((ex == NULL) || (obj == NULL))
 234                 return(0);
 235         ASN1_OBJECT_free(ex->object);
 236         ex->object=OBJ_dup(obj);
 237         return(1);
 238         }
 239
 240 int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit)
 241         {
 242         if (ex == NULL) return(0);
 243         ex->critical=(crit)?0xFF:-1;
 244         return(1);
 245         }
 246
 247 int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data)
 248         {
 249         int i;
 250
 251         if (ex == NULL) return(0);
 252         i=M_ASN1_OCTET_STRING_set(ex->value,data->data,data->length);
 253         if (!i) return(0);
 254         return(1);
 255         }
 256
 257 ASN1_OBJECT *X509_EXTENSION_get_object(X509_EXTENSION *ex)
 258         {
 259         if (ex == NULL) return(NULL);
 260         return(ex->object);
 261         }
 262
 263 ASN1_OCTET_STRING *X509_EXTENSION_get_data(X509_EXTENSION *ex)
 264         {
 265         if (ex == NULL) return(NULL);
 266         return(ex->value);
 267         }
 268
 269 int X509_EXTENSION_get_critical(X509_EXTENSION *ex)
 270         {
 271         if (ex == NULL) return(0);
 272         if(ex->critical > 0) return 1;
 273         return 0;
 274         }