crypto/asn1/x_req.c

   1 /* crypto/asn1/x_req.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/asn1_mac.h>
  62 #include <openssl/x509.h>
  63
  64 int i2d_X509_REQ_INFO(X509_REQ_INFO *a, unsigned char **pp)
  65         {
  66         M_ASN1_I2D_vars(a);
  67
  68         if(a->asn1) {
  69                 if(pp) {
  70                         memcpy(*pp, a->asn1, a->length);
  71                         *pp += a->length;
  72                 }
  73                 return a->length;
  74         }
  75
  76         M_ASN1_I2D_len(a->version,              i2d_ASN1_INTEGER);
  77         M_ASN1_I2D_len(a->subject,              i2d_X509_NAME);
  78         M_ASN1_I2D_len(a->pubkey,               i2d_X509_PUBKEY);
  79
  80         /* this is a *nasty* hack reported to be required to
  81          * allow some CA Software to accept the cert request.
  82          * It is not following the PKCS standards ...
  83          * PKCS#10 pg 5
  84          * attributes [0] IMPLICIT Attributes
  85          * NOTE: no OPTIONAL ... so it *must* be there
  86          */
  87         if (a->req_kludge)
  88                 {
  89                 M_ASN1_I2D_len_IMP_SET_opt_type(X509_ATTRIBUTE,a->attributes,i2d_X509_ATTRIBUTE,0);
  90                 }
  91         else
  92                 {
  93                 M_ASN1_I2D_len_IMP_SET_type(X509_ATTRIBUTE,a->attributes,
  94                                             i2d_X509_ATTRIBUTE,0);
  95                 }
  96
  97         M_ASN1_I2D_seq_total();
  98         M_ASN1_I2D_put(a->version,              i2d_ASN1_INTEGER);
  99         M_ASN1_I2D_put(a->subject,              i2d_X509_NAME);
 100         M_ASN1_I2D_put(a->pubkey,               i2d_X509_PUBKEY);
 101
 102         /* this is a *nasty* hack reported to be required by some CA's.
 103          * It is not following the PKCS standards ...
 104          * PKCS#10 pg 5
 105          * attributes [0] IMPLICIT Attributes
 106          * NOTE: no OPTIONAL ... so it *must* be there
 107          */
 108         if (a->req_kludge)
 109                 {
 110                 M_ASN1_I2D_put_IMP_SET_opt_type(X509_ATTRIBUTE,a->attributes,
 111                                                 i2d_X509_ATTRIBUTE,0);
 112                 }
 113         else
 114                 {
 115                 M_ASN1_I2D_put_IMP_SET_type(X509_ATTRIBUTE,a->attributes,
 116                                             i2d_X509_ATTRIBUTE,0);
 117                 }
 118
 119         M_ASN1_I2D_finish();
 120         }
 121
 122 X509_REQ_INFO *d2i_X509_REQ_INFO(X509_REQ_INFO **a, unsigned char **pp,
 123              long length)
 124         {
 125         M_ASN1_D2I_vars(a,X509_REQ_INFO *,X509_REQ_INFO_new);
 126
 127         M_ASN1_D2I_Init();
 128         M_ASN1_D2I_start_sequence();
 129         M_ASN1_D2I_get(ret->version,d2i_ASN1_INTEGER);
 130         M_ASN1_D2I_get(ret->subject,d2i_X509_NAME);
 131         M_ASN1_D2I_get(ret->pubkey,d2i_X509_PUBKEY);
 132
 133         /* this is a *nasty* hack to allow for some CA's that
 134          * have been reported as requiring it.
 135          * It is not following the PKCS standards ...
 136          * PKCS#10 pg 5
 137          * attributes [0] IMPLICIT Attributes
 138          * NOTE: no OPTIONAL ... so it *must* be there
 139          */
 140         if (asn1_Finish(&c))
 141                 ret->req_kludge=1;
 142         else
 143                 {
 144                 M_ASN1_D2I_get_IMP_set_type(X509_ATTRIBUTE,ret->attributes,
 145                                             d2i_X509_ATTRIBUTE,
 146                                             X509_ATTRIBUTE_free,0);
 147                 }
 148
 149         M_ASN1_D2I_Finish(a,X509_REQ_INFO_free,ASN1_F_D2I_X509_REQ_INFO);
 150         }
 151
 152 X509_REQ_INFO *X509_REQ_INFO_new(void)
 153         {
 154         X509_REQ_INFO *ret=NULL;
 155         ASN1_CTX c;
 156
 157         M_ASN1_New_Malloc(ret,X509_REQ_INFO);
 158         M_ASN1_New(ret->version,M_ASN1_INTEGER_new);
 159         M_ASN1_New(ret->subject,X509_NAME_new);
 160         M_ASN1_New(ret->pubkey,X509_PUBKEY_new);
 161         M_ASN1_New(ret->attributes,sk_X509_ATTRIBUTE_new_null);
 162         ret->req_kludge=0;
 163         ret->asn1 = NULL;
 164         return(ret);
 165         M_ASN1_New_Error(ASN1_F_X509_REQ_INFO_NEW);
 166         }
 167
 168 void X509_REQ_INFO_free(X509_REQ_INFO *a)
 169         {
 170         if (a == NULL) return;
 171         if(a->asn1) OPENSSL_free(a->asn1);
 172         M_ASN1_INTEGER_free(a->version);
 173         X509_NAME_free(a->subject);
 174         X509_PUBKEY_free(a->pubkey);
 175         sk_X509_ATTRIBUTE_pop_free(a->attributes,X509_ATTRIBUTE_free);
 176         OPENSSL_free(a);
 177         }
 178
 179 int i2d_X509_REQ(X509_REQ *a, unsigned char **pp)
 180         {
 181         M_ASN1_I2D_vars(a);
 182         M_ASN1_I2D_len(a->req_info,     i2d_X509_REQ_INFO);
 183         M_ASN1_I2D_len(a->sig_alg,      i2d_X509_ALGOR);
 184         M_ASN1_I2D_len(a->signature,    i2d_ASN1_BIT_STRING);
 185
 186         M_ASN1_I2D_seq_total();
 187
 188         M_ASN1_I2D_put(a->req_info,     i2d_X509_REQ_INFO);
 189         M_ASN1_I2D_put(a->sig_alg,      i2d_X509_ALGOR);
 190         M_ASN1_I2D_put(a->signature,    i2d_ASN1_BIT_STRING);
 191
 192         M_ASN1_I2D_finish();
 193         }
 194
 195 X509_REQ *d2i_X509_REQ(X509_REQ **a, unsigned char **pp, long length)
 196         {
 197         M_ASN1_D2I_vars(a,X509_REQ *,X509_REQ_new);
 198
 199         M_ASN1_D2I_Init();
 200         M_ASN1_D2I_start_sequence();
 201         M_ASN1_D2I_get(ret->req_info,d2i_X509_REQ_INFO);
 202
 203         /* Keep a copy of the original encoding for signature checking */
 204         ret->req_info->length = c.p - c.q;
 205         if(!(ret->req_info->asn1 = OPENSSL_malloc(ret->req_info->length))) {
 206                 c.line=__LINE__;
 207                 c.error = ERR_R_MALLOC_FAILURE;
 208                 goto err;
 209         }
 210
 211         memcpy(ret->req_info->asn1, c.q, ret->req_info->length);
 212
 213         M_ASN1_D2I_get(ret->sig_alg,d2i_X509_ALGOR);
 214         M_ASN1_D2I_get(ret->signature,d2i_ASN1_BIT_STRING);
 215         M_ASN1_D2I_Finish(a,X509_REQ_free,ASN1_F_D2I_X509_REQ);
 216         }
 217
 218 X509_REQ *X509_REQ_new(void)
 219         {
 220         X509_REQ *ret=NULL;
 221         ASN1_CTX c;
 222
 223         M_ASN1_New_Malloc(ret,X509_REQ);
 224         ret->references=1;
 225         M_ASN1_New(ret->req_info,X509_REQ_INFO_new);
 226         M_ASN1_New(ret->sig_alg,X509_ALGOR_new);
 227         M_ASN1_New(ret->signature,M_ASN1_BIT_STRING_new);
 228         return(ret);
 229         M_ASN1_New_Error(ASN1_F_X509_REQ_NEW);
 230         }
 231
 232 void X509_REQ_free(X509_REQ *a)
 233         {
 234         int i;
 235
 236         if (a == NULL) return;
 237
 238         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509_REQ);
 239 #ifdef REF_PRINT
 240         REF_PRINT("X509_REQ",a);
 241 #endif
 242         if (i > 0) return;
 243 #ifdef REF_CHECK
 244         if (i < 0)
 245                 {
 246                 fprintf(stderr,"X509_REQ_free, bad reference count\n");
 247                 abort();
 248                 }
 249 #endif
 250
 251         X509_REQ_INFO_free(a->req_info);
 252         X509_ALGOR_free(a->sig_alg);
 253         M_ASN1_BIT_STRING_free(a->signature);
 254         OPENSSL_free(a);
 255         }
 256
 257