crypto/x509v3/v3_sxnet.c

   1 /*
   2  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   3  * 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 "internal/cryptlib.h"
  61 #include <openssl/conf.h>
  62 #include <openssl/asn1.h>
  63 #include <openssl/asn1t.h>
  64 #include <openssl/x509v3.h>
  65 #include "ext_dat.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         ASN1_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;
 156
 157     if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) {
 158         X509V3err(X509V3_F_SXNET_ADD_ID_ASC, X509V3_R_ERROR_CONVERTING_ZONE);
 159         return 0;
 160     }
 161     return SXNET_add_id_INTEGER(psx, izone, user, userlen);
 162 }
 163
 164 /* Add an id given the zone as an unsigned long */
 165
 166 int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user,
 167                        int userlen)
 168 {
 169     ASN1_INTEGER *izone;
 170
 171     if ((izone = ASN1_INTEGER_new()) == NULL
 172         || !ASN1_INTEGER_set(izone, lzone)) {
 173         X509V3err(X509V3_F_SXNET_ADD_ID_ULONG, ERR_R_MALLOC_FAILURE);
 174         ASN1_INTEGER_free(izone);
 175         return 0;
 176     }
 177     return SXNET_add_id_INTEGER(psx, izone, user, userlen);
 178
 179 }
 180
 181 /*
 182  * Add an id given the zone as an ASN1_INTEGER. Note this version uses the
 183  * passed integer and doesn't make a copy so don't free it up afterwards.
 184  */
 185
 186 int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, char *user,
 187                          int userlen)
 188 {
 189     SXNET *sx = NULL;
 190     SXNETID *id = NULL;
 191     if (!psx || !zone || !user) {
 192         X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,
 193                   X509V3_R_INVALID_NULL_ARGUMENT);
 194         return 0;
 195     }
 196     if (userlen == -1)
 197         userlen = strlen(user);
 198     if (userlen > 64) {
 199         X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, X509V3_R_USER_TOO_LONG);
 200         return 0;
 201     }
 202     if (*psx == NULL) {
 203         if ((sx = SXNET_new()) == NULL)
 204             goto err;
 205         if (!ASN1_INTEGER_set(sx->version, 0))
 206             goto err;
 207         *psx = sx;
 208     } else
 209         sx = *psx;
 210     if (SXNET_get_id_INTEGER(sx, zone)) {
 211         X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, X509V3_R_DUPLICATE_ZONE_ID);
 212         return 0;
 213     }
 214
 215     if ((id = SXNETID_new()) == NULL)
 216         goto err;
 217     if (userlen == -1)
 218         userlen = strlen(user);
 219
 220     if (!ASN1_OCTET_STRING_set(id->user, (unsigned char *)user, userlen))
 221         goto err;
 222     if (!sk_SXNETID_push(sx->ids, id))
 223         goto err;
 224     id->zone = zone;
 225     return 1;
 226
 227  err:
 228     X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER, ERR_R_MALLOC_FAILURE);
 229     SXNETID_free(id);
 230     SXNET_free(sx);
 231     *psx = NULL;
 232     return 0;
 233 }
 234
 235 ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone)
 236 {
 237     ASN1_INTEGER *izone;
 238     ASN1_OCTET_STRING *oct;
 239
 240     if ((izone = s2i_ASN1_INTEGER(NULL, zone)) == NULL) {
 241         X509V3err(X509V3_F_SXNET_GET_ID_ASC, X509V3_R_ERROR_CONVERTING_ZONE);
 242         return NULL;
 243     }
 244     oct = SXNET_get_id_INTEGER(sx, izone);
 245     ASN1_INTEGER_free(izone);
 246     return oct;
 247 }
 248
 249 ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
 250 {
 251     ASN1_INTEGER *izone;
 252     ASN1_OCTET_STRING *oct;
 253
 254     if ((izone = ASN1_INTEGER_new()) == NULL
 255         || !ASN1_INTEGER_set(izone, lzone)) {
 256         X509V3err(X509V3_F_SXNET_GET_ID_ULONG, ERR_R_MALLOC_FAILURE);
 257         ASN1_INTEGER_free(izone);
 258         return NULL;
 259     }
 260     oct = SXNET_get_id_INTEGER(sx, izone);
 261     ASN1_INTEGER_free(izone);
 262     return oct;
 263 }
 264
 265 ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
 266 {
 267     SXNETID *id;
 268     int i;
 269     for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
 270         id = sk_SXNETID_value(sx->ids, i);
 271         if (!ASN1_INTEGER_cmp(id->zone, zone))
 272             return id->user;
 273     }
 274     return NULL;
 275 }