1 /* v3_sxnet.c */ 2 /* 3 * Written by Dr Stephen N Henson (steve (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh (at) cryptsoft.com). 57 * 58 */ 59 60 #include <stdio.h> 61 #include <string.h> 62 63 #include <openssl/asn1.h> 64 #include <openssl/asn1t.h> 65 #include <openssl/conf.h> 66 #include <openssl/err.h> 67 #include <openssl/mem.h> 68 #include <openssl/obj.h> 69 #include <openssl/x509v3.h> 70 71 /* Support for Thawte strong extranet extension */ 72 73 #define SXNET_TEST 74 75 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, 76 int indent); 77 #ifdef SXNET_TEST 78 static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 79 STACK_OF(CONF_VALUE) *nval); 80 #endif 81 const X509V3_EXT_METHOD v3_sxnet = { 82 NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET), 83 0, 0, 0, 0, 84 0, 0, 85 0, 86 #ifdef SXNET_TEST 87 (X509V3_EXT_V2I)sxnet_v2i, 88 #else 89 0, 90 #endif 91 (X509V3_EXT_I2R)sxnet_i2r, 92 0, 93 NULL 94 }; 95 96 ASN1_SEQUENCE(SXNETID) = { 97 ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER), 98 ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING) 99 } ASN1_SEQUENCE_END(SXNETID) 100 101 IMPLEMENT_ASN1_FUNCTIONS(SXNETID) 102 103 ASN1_SEQUENCE(SXNET) = { 104 ASN1_SIMPLE(SXNET, version, ASN1_INTEGER), 105 ASN1_SEQUENCE_OF(SXNET, ids, SXNETID) 106 } ASN1_SEQUENCE_END(SXNET) 107 108 IMPLEMENT_ASN1_FUNCTIONS(SXNET) 109 110 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, 111 int indent) 112 { 113 long v; 114 char *tmp; 115 SXNETID *id; 116 size_t i; 117 v = ASN1_INTEGER_get(sx->version); 118 BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v); 119 for (i = 0; i < sk_SXNETID_num(sx->ids); i++) { 120 id = sk_SXNETID_value(sx->ids, i); 121 tmp = i2s_ASN1_INTEGER(NULL, id->zone); 122 BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp); 123 OPENSSL_free(tmp); 124 M_ASN1_OCTET_STRING_print(out, id->user); 125 } 126 return 1; 127 } 128 129 #ifdef SXNET_TEST 130 131 /* 132 * NBB: this is used for testing only. It should *not* be used for anything 133 * else because it will just take static IDs from the configuration file and 134 * they should really be separate values for each user. 135 */ 136 137 static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 138 STACK_OF(CONF_VALUE) *nval) 139 { 140 CONF_VALUE *cnf; 141 SXNET *sx = NULL; 142 size_t i; 143 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 144 cnf = sk_CONF_VALUE_value(nval, i); 145 if (!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1)) 146 return NULL; 147 } 148 return sx; 149 } 150 151 #endif 152 153 /* Strong Extranet utility functions */ 154 155 /* Add an id given the zone as an ASCII number */ 156 157 int SXNET_add_id_asc(SXNET **psx, char *zone, char *user, int userlen) 158 { 159 ASN1_INTEGER *izone = NULL; 160 if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) { 161 OPENSSL_PUT_ERROR(X509V3, X509V3_R_ERROR_CONVERTING_ZONE); 162 return 0; 163 } 164 return SXNET_add_id_INTEGER(psx, izone, user, userlen); 165 } 166 167 /* Add an id given the zone as an unsigned long */ 168 169 int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user, 170 int userlen) 171 { 172 ASN1_INTEGER *izone = NULL; 173 if (!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) { 174 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); 175 M_ASN1_INTEGER_free(izone); 176 return 0; 177 } 178 return SXNET_add_id_INTEGER(psx, izone, user, userlen); 179 180 } 181 182 /* 183 * Add an id given the zone as an ASN1_INTEGER. Note this version uses the 184 * passed integer and doesn't make a copy so don't free it up afterwards. 185 */ 186 187 int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, char *user, 188 int userlen) 189 { 190 SXNET *sx = NULL; 191 SXNETID *id = NULL; 192 if (!psx || !zone || !user) { 193 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NULL_ARGUMENT); 194 return 0; 195 } 196 if (userlen == -1) 197 userlen = strlen(user); 198 if (userlen > 64) { 199 OPENSSL_PUT_ERROR(X509V3, X509V3_R_USER_TOO_LONG); 200 return 0; 201 } 202 if (!*psx) { 203 if (!(sx = SXNET_new())) 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 OPENSSL_PUT_ERROR(X509V3, X509V3_R_DUPLICATE_ZONE_ID); 212 return 0; 213 } 214 215 if (!(id = SXNETID_new())) 216 goto err; 217 if (userlen == -1) 218 userlen = strlen(user); 219 220 if (!M_ASN1_OCTET_STRING_set(id->user, 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 OPENSSL_PUT_ERROR(X509V3, 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 = NULL; 238 ASN1_OCTET_STRING *oct; 239 if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) { 240 OPENSSL_PUT_ERROR(X509V3, X509V3_R_ERROR_CONVERTING_ZONE); 241 return NULL; 242 } 243 oct = SXNET_get_id_INTEGER(sx, izone); 244 M_ASN1_INTEGER_free(izone); 245 return oct; 246 } 247 248 ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone) 249 { 250 ASN1_INTEGER *izone = NULL; 251 ASN1_OCTET_STRING *oct; 252 if (!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) { 253 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); 254 M_ASN1_INTEGER_free(izone); 255 return NULL; 256 } 257 oct = SXNET_get_id_INTEGER(sx, izone); 258 M_ASN1_INTEGER_free(izone); 259 return oct; 260 } 261 262 ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone) 263 { 264 SXNETID *id; 265 size_t i; 266 for (i = 0; i < sk_SXNETID_num(sx->ids); i++) { 267 id = sk_SXNETID_value(sx->ids, i); 268 if (!M_ASN1_INTEGER_cmp(id->zone, zone)) 269 return id->user; 270 } 271 return NULL; 272 } 273 274 IMPLEMENT_ASN1_SET_OF(SXNETID) 275
