crypto/asn1/x_name.c

   1 /* crypto/asn1/x_name.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/objects.h>
  62 #include <openssl/asn1_mac.h>
  63
  64 static int i2d_X509_NAME_entries(X509_NAME *a);
  65 int i2d_X509_NAME_ENTRY(X509_NAME_ENTRY *a, unsigned char **pp)
  66         {
  67         M_ASN1_I2D_vars(a);
  68
  69         M_ASN1_I2D_len(a->object,i2d_ASN1_OBJECT);
  70         M_ASN1_I2D_len(a->value,i2d_ASN1_PRINTABLE);
  71
  72         M_ASN1_I2D_seq_total();
  73
  74         M_ASN1_I2D_put(a->object,i2d_ASN1_OBJECT);
  75         M_ASN1_I2D_put(a->value,i2d_ASN1_PRINTABLE);
  76
  77         M_ASN1_I2D_finish();
  78         }
  79
  80 X509_NAME_ENTRY *d2i_X509_NAME_ENTRY(X509_NAME_ENTRY **a, unsigned char **pp,
  81              long length)
  82         {
  83         M_ASN1_D2I_vars(a,X509_NAME_ENTRY *,X509_NAME_ENTRY_new);
  84
  85         M_ASN1_D2I_Init();
  86         M_ASN1_D2I_start_sequence();
  87         M_ASN1_D2I_get(ret->object,d2i_ASN1_OBJECT);
  88         M_ASN1_D2I_get(ret->value,d2i_ASN1_PRINTABLE);
  89         ret->set=0;
  90         M_ASN1_D2I_Finish(a,X509_NAME_ENTRY_free,ASN1_F_D2I_X509_NAME_ENTRY);
  91         }
  92
  93 int i2d_X509_NAME(X509_NAME *a, unsigned char **pp)
  94         {
  95         int ret;
  96
  97         if (a == NULL) return(0);
  98         if (a->modified)
  99                 {
 100                 ret=i2d_X509_NAME_entries(a);
 101                 if (ret < 0) return(ret);
 102                 }
 103
 104         ret=a->bytes->length;
 105         if (pp != NULL)
 106                 {
 107                 memcpy(*pp,a->bytes->data,ret);
 108                 *pp+=ret;
 109                 }
 110         return(ret);
 111         }
 112
 113 static int i2d_X509_NAME_entries(X509_NAME *a)
 114         {
 115         X509_NAME_ENTRY *ne,*fe=NULL;
 116         STACK *sk;
 117         BUF_MEM *buf=NULL;
 118         int set=0,r,ret=0;
 119         int i;
 120         unsigned char *p;
 121         int size=0;
 122
 123         sk=a->entries;
 124         for (i=0; i<sk_num(sk); i++)
 125                 {
 126                 ne=(X509_NAME_ENTRY *)sk_value(sk,i);
 127                 if (fe == NULL)
 128                         {
 129                         fe=ne;
 130                         size=0;
 131                         }
 132
 133                 if (ne->set != set)
 134                         {
 135                         ret+=ASN1_object_size(1,size,V_ASN1_SET);
 136                         fe->size=size;
 137                         fe=ne;
 138                         size=0;
 139                         set=ne->set;
 140                         }
 141                 size+=i2d_X509_NAME_ENTRY(ne,NULL);
 142                 }
 143
 144         ret+=ASN1_object_size(1,size,V_ASN1_SET);
 145         if (fe != NULL)
 146                 fe->size=size;
 147
 148         r=ASN1_object_size(1,ret,V_ASN1_SEQUENCE);
 149
 150         buf=a->bytes;
 151         if (!BUF_MEM_grow(buf,r)) goto err;
 152         p=(unsigned char *)buf->data;
 153
 154         ASN1_put_object(&p,1,ret,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
 155
 156         set= -1;
 157         for (i=0; i<sk_num(sk); i++)
 158                 {
 159                 ne=(X509_NAME_ENTRY *)sk_value(sk,i);
 160                 if (set != ne->set)
 161                         {
 162                         set=ne->set;
 163                         ASN1_put_object(&p,1,ne->size,
 164                                 V_ASN1_SET,V_ASN1_UNIVERSAL);
 165                         }
 166                 i2d_X509_NAME_ENTRY(ne,&p);
 167                 }
 168         a->modified=0;
 169         return(r);
 170 err:
 171         return(-1);
 172         }
 173
 174 X509_NAME *d2i_X509_NAME(X509_NAME **a, unsigned char **pp, long length)
 175         {
 176         int set=0,i;
 177         int idx=0;
 178         unsigned char *orig;
 179         M_ASN1_D2I_vars(a,X509_NAME *,X509_NAME_new);
 180
 181         orig= *pp;
 182         if (sk_num(ret->entries) > 0)
 183                 {
 184                 while (sk_num(ret->entries) > 0)
 185                         X509_NAME_ENTRY_free((X509_NAME_ENTRY *)
 186                                 sk_pop(ret->entries));
 187                 }
 188
 189         M_ASN1_D2I_Init();
 190         M_ASN1_D2I_start_sequence();
 191         for (;;)
 192                 {
 193                 if (M_ASN1_D2I_end_sequence()) break;
 194                 M_ASN1_D2I_get_set(ret->entries,d2i_X509_NAME_ENTRY,
 195                         X509_NAME_ENTRY_free);
 196                 for (; idx < sk_num(ret->entries); idx++)
 197                         {
 198                         ((X509_NAME_ENTRY *)sk_value(ret->entries,idx))->set=
 199                                 set;
 200                         }
 201                 set++;
 202                 }
 203
 204         i=(int)(c.p-orig);
 205         if (!BUF_MEM_grow(ret->bytes,i)) goto err;
 206         memcpy(ret->bytes->data,orig,i);
 207         ret->bytes->length=i;
 208         ret->modified=0;
 209
 210         M_ASN1_D2I_Finish(a,X509_NAME_free,ASN1_F_D2I_X509_NAME);
 211         }
 212
 213 X509_NAME *X509_NAME_new(void)
 214         {
 215         X509_NAME *ret=NULL;
 216         ASN1_CTX c;
 217
 218         M_ASN1_New_Malloc(ret,X509_NAME);
 219         if ((ret->entries=sk_new(NULL)) == NULL)
 220                 { c.line=__LINE__; goto err2; }
 221         M_ASN1_New(ret->bytes,BUF_MEM_new);
 222         ret->modified=1;
 223         return(ret);
 224         M_ASN1_New_Error(ASN1_F_X509_NAME_NEW);
 225         }
 226
 227 X509_NAME_ENTRY *X509_NAME_ENTRY_new(void)
 228         {
 229         X509_NAME_ENTRY *ret=NULL;
 230         ASN1_CTX c;
 231
 232         M_ASN1_New_Malloc(ret,X509_NAME_ENTRY);
 233 /*      M_ASN1_New(ret->object,ASN1_OBJECT_new);*/
 234         ret->object=NULL;
 235         ret->set=0;
 236         M_ASN1_New(ret->value,ASN1_STRING_new);
 237         return(ret);
 238         M_ASN1_New_Error(ASN1_F_X509_NAME_ENTRY_NEW);
 239         }
 240
 241 void X509_NAME_free(X509_NAME *a)
 242         {
 243         if(a == NULL)
 244             return;
 245
 246         BUF_MEM_free(a->bytes);
 247         sk_pop_free(a->entries,X509_NAME_ENTRY_free);
 248         Free((char *)a);
 249         }
 250
 251 void X509_NAME_ENTRY_free(X509_NAME_ENTRY *a)
 252         {
 253         if (a == NULL) return;
 254         ASN1_OBJECT_free(a->object);
 255         ASN1_BIT_STRING_free(a->value);
 256         Free((char *)a);
 257         }
 258
 259 int X509_NAME_set(X509_NAME **xn, X509_NAME *name)
 260         {
 261         X509_NAME *in;
 262
 263         if (*xn == NULL) return(0);
 264
 265         if (*xn != name)
 266                 {
 267                 in=X509_NAME_dup(name);
 268                 if (in != NULL)
 269                         {
 270                         X509_NAME_free(*xn);
 271                         *xn=in;
 272                         }
 273                 }
 274         return(*xn != NULL);
 275         }
 276