crypto/asn1/a_strnid.c

   1 /* a_strnid.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 1999.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59 #include <stdio.h>
  60 #include <ctype.h>
  61 #include "cryptlib.h"
  62 #include <openssl/asn1.h>
  63 #include <openssl/objects.h>
  64
  65
  66 static STACK_OF(ASN1_STRING_TABLE) *stable = NULL;
  67 static void st_free(ASN1_STRING_TABLE *tbl);
  68 static int sk_table_cmp(ASN1_STRING_TABLE **a, ASN1_STRING_TABLE **b);
  69
  70 /* The following function generates an ASN1_STRING based on limits in a table.
  71  * Frequently the types and length of an ASN1_STRING are restricted by a
  72  * corresponding OID. For example certificates and certificate requests.
  73  */
  74
  75 ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out, const unsigned char *in,
  76                                         int inlen, int inform, int nid)
  77 {
  78         ASN1_STRING_TABLE *tbl;
  79         ASN1_STRING *str = NULL;
  80         int ret;
  81         if(!out) out = &str;
  82         if(!stable) ASN1_STRING_TABLE_add_standard();
  83         tbl = ASN1_STRING_TABLE_get(nid);
  84         if(tbl) ret = ASN1_mbstring_ncopy(out, in, inlen, inform, tbl->mask,
  85                                         tbl->minsize, tbl->maxsize);
  86         else ret = ASN1_mbstring_copy(out, in, inlen, inform, 0);
  87         if(ret <= 0) return NULL;
  88         return str;
  89 }
  90
  91 /* Now the tables and helper functions for the string table:
  92  */
  93
  94 /* size limits: this stuff is taken straight from RFC2459 */
  95
  96 #define ub_name                         32768
  97 #define ub_common_name                  64
  98 #define ub_locality_name                128
  99 #define ub_state_name                   128
 100 #define ub_organization_name            64
 101 #define ub_organization_unit_name       64
 102 #define ub_title                        64
 103 #define ub_email_address                128
 104
 105 static ASN1_STRING_TABLE tbl_standard[] = {
 106 {NID_name,                      1, ub_name, 0, 0},
 107 {NID_surname,                   1, ub_name, 0, 0},
 108 {NID_givenName,                 1, ub_name, 0, 0},
 109 {NID_initials,                  1, ub_name, 0, 0},
 110 {NID_commonName,                1, ub_common_name, 0, 0},
 111 {NID_localityName,              1, ub_locality_name, 0, 0},
 112 {NID_stateOrProvinceName,       1, ub_state_name, 0, 0},
 113 {NID_organizationName,          1, ub_organization_name, 0, 0},
 114 {NID_organizationalUnitName,    1, ub_organization_unit_name, 0, 0},
 115 {NID_dnQualifier,               -1, -1, B_ASN1_PRINTABLESTRING, 0},
 116 {NID_countryName,               2, 2, B_ASN1_PRINTABLESTRING, 0},
 117 {NID_pkcs9_emailAddress,        1, ub_email_address, B_ASN1_IA5STRING, 0},
 118 {NID_undef, 0, 0, 0, 0}
 119 };
 120
 121 int ASN1_STRING_TABLE_add_standard(void)
 122 {
 123         static int done = 0;
 124         ASN1_STRING_TABLE *tmp;
 125         if(done) return 1;
 126         if(!stable) stable = sk_ASN1_STRING_TABLE_new(sk_table_cmp);
 127         if(!stable) {
 128                 ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD_STANDARD,
 129                                                 ERR_R_MALLOC_FAILURE);
 130                 return 0;
 131         }
 132         for(tmp = tbl_standard; tmp->nid != NID_undef; tmp++) {
 133                 if(!sk_ASN1_STRING_TABLE_push(stable, tmp)) {
 134                         ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD_STANDARD,
 135                                                         ERR_R_MALLOC_FAILURE);
 136                         return 0;
 137                 }
 138         }
 139         return 1;
 140 }
 141
 142 static int sk_table_cmp(ASN1_STRING_TABLE **a, ASN1_STRING_TABLE **b)
 143 {
 144         return (*a)->nid - (*b)->nid;
 145 }
 146
 147 ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid)
 148 {
 149         int idx;
 150         ASN1_STRING_TABLE fnd;
 151         fnd.nid = nid;
 152         idx = sk_ASN1_STRING_TABLE_find(stable, &fnd);
 153         if(idx < 0) return NULL;
 154         return sk_ASN1_STRING_TABLE_value(stable, idx);
 155 }
 156
 157 int ASN1_STRING_TABLE_add(int nid,
 158                  long minsize, long maxsize, unsigned long mask,
 159                                 unsigned long flags)
 160 {
 161         ASN1_STRING_TABLE *tmp;
 162         char new_nid = 0;
 163         if(!stable) stable = sk_ASN1_STRING_TABLE_new(sk_table_cmp);
 164         if(!stable) {
 165                 ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD, ERR_R_MALLOC_FAILURE);
 166                 return 0;
 167         }
 168         if(!(tmp = ASN1_STRING_TABLE_get(nid))) {
 169                 tmp = Malloc(sizeof(ASN1_STRING_TABLE));
 170                 if(!tmp) {
 171                         ASN1err(ASN1_F_ASN1_STRING_TABLE_ADD,
 172                                                         ERR_R_MALLOC_FAILURE);
 173                         return 0;
 174                 }
 175                 tmp->flags = STABLE_FLAGS_MALLOC;
 176                 tmp->nid = nid;
 177                 new_nid = 1;
 178         }
 179         if(minsize != -1) tmp->minsize = minsize;
 180         if(maxsize != -1) tmp->maxsize = maxsize;
 181         tmp->mask = mask;
 182         tmp->flags = flags & ~STABLE_FLAGS_MALLOC;
 183         if(new_nid) sk_ASN1_STRING_TABLE_push(stable, tmp);
 184         return 1;
 185 }
 186
 187 void ASN1_STRING_TABLE_cleanup(void)
 188 {
 189         STACK_OF(ASN1_STRING_TABLE) *tmp;
 190         tmp = stable;
 191         stable = NULL;
 192         sk_ASN1_STRING_TABLE_pop_free(tmp, st_free);
 193 }
 194
 195 static void st_free(ASN1_STRING_TABLE *tbl)
 196 {
 197         if(tbl->flags & STABLE_FLAGS_MALLOC) Free(tbl);
 198 }
 199
 200 IMPLEMENT_STACK_OF(ASN1_STRING_TABLE)