crypto/openssl/crypto/x509v3/v3_sxnet.c

   1 /* v3_sxnet.c */
   2 /*
   3  * Written by Dr Stephen N Henson (steve@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@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@cryptsoft.com).  This product includes software written by Tim
  56  * Hudson (tjh@cryptsoft.com).
  57  *
  58  */
  59
  60 #include <stdio.h>
  61 #include "cryptlib.h"
  62 #include <openssl/conf.h>
  63 #include <openssl/asn1.h>
  64 #include <openssl/asn1t.h>
  65 #include <openssl/x509v3.h>
  66
  67 /* Support for Thawte strong extranet extension */
  68
  69 #define SXNET_TEST
  70
  71 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
  72                      int indent);
  73 #ifdef SXNET_TEST
  74 static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
  75                         STACK_OF(CONF_VALUE) *nval);
  76 #endif
  77 const X509V3_EXT_METHOD v3_sxnet = {
  78     NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
  79     0, 0, 0, 0,
  80     0, 0,
  81     0,
  82 #ifdef SXNET_TEST
  83     (X509V3_EXT_V2I)sxnet_v2i,
  84 #else
  85     0,
  86 #endif
  87     (X509V3_EXT_I2R)sxnet_i2r,
  88     0,
  89     NULL
  90 };
  91
  92 ASN1_SEQUENCE(SXNETID) = {
  93         ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
  94         ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
  95 } ASN1_SEQUENCE_END(SXNETID)
  96
  97 IMPLEMENT_ASN1_FUNCTIONS(SXNETID)
  98
  99 ASN1_SEQUENCE(SXNET) = {
 100         ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
 101         ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
 102 } ASN1_SEQUENCE_END(SXNET)
 103
 104 IMPLEMENT_ASN1_FUNCTIONS(SXNET)
 105
 106 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
 107                      int indent)
 108 {
 109     long v;
 110     char *tmp;
 111     SXNETID *id;
 112     int i;
 113     v = ASN1_INTEGER_get(sx->version);
 114     BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v);
 115     for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
 116         id = sk_SXNETID_value(sx->ids, i);
 117         tmp = i2s_ASN1_INTEGER(NULL, id->zone);
 118         BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
 119         OPENSSL_free(tmp);
 120         M_ASN1_OCTET_STRING_print(out, id->user);
 121     }
 122     return 1;
 123 }
 124
 125 #ifdef SXNET_TEST
 126
 127 /*
 128  * NBB: this is used for testing only. It should *not* be used for anything
 129  * else because it will just take static IDs from the configuration file and
 130  * they should really be separate values for each user.
 131  */
 132
 133 static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
 134                         STACK_OF(CONF_VALUE) *nval)
 135 {
 136     CONF_VALUE *cnf;
 137     SXNET *sx = NULL;
 138     int i;
 139     for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
 140         cnf = sk_CONF_VALUE_value(nval, i);
 141         if (!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1))
 142             return NULL;
 143     }
 144     return sx;
 145 }
 146
 147 #endif
 148
 149 /* Strong Extranet utility functions */
 150
 151 /* Add an id given the zone as an ASCII number */
 152
 153 int SXNET_add_id_asc(SXNET **psx, char *zone, char *user, int userlen)
 154 {
 155     ASN1_INTEGER *izone = NULL;
 156     if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
 157         X509V3err(X509V3_F_SXNET_ADD_ID_ASC, X509V3_R_ERROR_CONVERTING_ZONE);
 158         return 0;
 159     }
 160     return SXNET_add_id_INTEGER(psx, izone, user, userlen);
 161 }
 162
 163 /* Add an id given the zone as an unsigned long */
 164
 165 int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user,
 166                        int userlen)
 167 {
 168     ASN1_INTEGER *izone = NULL;
 169     if (!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
 170         X509V3err(X509V3_F_SXNET_ADD_ID_ULONG, ERR_R_MALLOC_FAILURE);
 171         M_ASN1_INTEGER_free(izone);
 172         return 0;
 173     }
 174     return SXNET_add_id_INTEGER(psx, izone, user, userlen);
 175
 176 }
 177
 178 /*
 179  * Add an id given the zone as an ASN1_INTEGER. Note this version uses the
 180  * passed integer and doesn't make a copy so don't free it up afterwards.
 181  */
 182
 183 int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, char *user,
 184                          int userlen)
 185 {
 186     SXNET *sx = NULL;
 187     SXNETID *id = NULL;
 188     if (!psx || !zone || !user) {
 189         X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,
 190                   X509V3_R_INVALID_NULL_ARGUMENT);
 191         return 0;
 192     }
 193     if (userlen == -1)
 194         userlen = strlen(user);
 195     if (userlen > 64) {
 196         X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, X509V3_R_USER_TOO_LONG);
 197         return 0;
 198     }
 199     if (!*psx) {
 200         if (!(sx = SXNET_new()))
 201             goto err;
 202         if (!ASN1_INTEGER_set(sx->version, 0))
 203             goto err;
 204         *psx = sx;
 205     } else
 206         sx = *psx;
 207     if (SXNET_get_id_INTEGER(sx, zone)) {
 208         X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, X509V3_R_DUPLICATE_ZONE_ID);
 209         return 0;
 210     }
 211
 212     if (!(id = SXNETID_new()))
 213         goto err;
 214     if (userlen == -1)
 215         userlen = strlen(user);
 216
 217     if (!M_ASN1_OCTET_STRING_set(id->user, user, userlen))
 218         goto err;
 219     if (!sk_SXNETID_push(sx->ids, id))
 220         goto err;
 221     id->zone = zone;
 222     return 1;
 223
 224  err:
 225     X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, ERR_R_MALLOC_FAILURE);
 226     SXNETID_free(id);
 227     SXNET_free(sx);
 228     *psx = NULL;
 229     return 0;
 230 }
 231
 232 ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone)
 233 {
 234     ASN1_INTEGER *izone = NULL;
 235     ASN1_OCTET_STRING *oct;
 236     if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
 237         X509V3err(X509V3_F_SXNET_GET_ID_ASC, X509V3_R_ERROR_CONVERTING_ZONE);
 238         return NULL;
 239     }
 240     oct = SXNET_get_id_INTEGER(sx, izone);
 241     M_ASN1_INTEGER_free(izone);
 242     return oct;
 243 }
 244
 245 ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
 246 {
 247     ASN1_INTEGER *izone = NULL;
 248     ASN1_OCTET_STRING *oct;
 249     if (!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
 250         X509V3err(X509V3_F_SXNET_GET_ID_ULONG, ERR_R_MALLOC_FAILURE);
 251         M_ASN1_INTEGER_free(izone);
 252         return NULL;
 253     }
 254     oct = SXNET_get_id_INTEGER(sx, izone);
 255     M_ASN1_INTEGER_free(izone);
 256     return oct;
 257 }
 258
 259 ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
 260 {
 261     SXNETID *id;
 262     int i;
 263     for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
 264         id = sk_SXNETID_value(sx->ids, i);
 265         if (!M_ASN1_INTEGER_cmp(id->zone, zone))
 266             return id->user;
 267     }
 268     return NULL;
 269 }
 270
 271 IMPLEMENT_STACK_OF(SXNETID)
 272
 273 IMPLEMENT_ASN1_SET_OF(SXNETID)