v3_sxnet.c revision 55714
1/* v3_sxnet.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 "cryptlib.h" 61#include <openssl/conf.h> 62#include <openssl/asn1.h> 63#include <openssl/asn1_mac.h> 64#include <openssl/x509v3.h> 65 66/* Support for Thawte strong extranet extension */ 67 68#define SXNET_TEST 69 70static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, int indent); 71#ifdef SXNET_TEST 72static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 73 STACK_OF(CONF_VALUE) *nval); 74#endif 75X509V3_EXT_METHOD v3_sxnet = { 76NID_sxnet, X509V3_EXT_MULTILINE, 77(X509V3_EXT_NEW)SXNET_new, 78(X509V3_EXT_FREE)SXNET_free, 79(X509V3_EXT_D2I)d2i_SXNET, 80(X509V3_EXT_I2D)i2d_SXNET, 81NULL, NULL, 82NULL, 83#ifdef SXNET_TEST 84(X509V3_EXT_V2I)sxnet_v2i, 85#else 86NULL, 87#endif 88(X509V3_EXT_I2R)sxnet_i2r, 89NULL, 90NULL 91}; 92 93 94int i2d_SXNET(SXNET *a, unsigned char **pp) 95{ 96 M_ASN1_I2D_vars(a); 97 98 M_ASN1_I2D_len (a->version, i2d_ASN1_INTEGER); 99 M_ASN1_I2D_len_SEQUENCE_type (SXNETID, a->ids, i2d_SXNETID); 100 101 M_ASN1_I2D_seq_total(); 102 103 M_ASN1_I2D_put (a->version, i2d_ASN1_INTEGER); 104 M_ASN1_I2D_put_SEQUENCE_type (SXNETID, a->ids, i2d_SXNETID); 105 106 M_ASN1_I2D_finish(); 107} 108 109SXNET *SXNET_new(void) 110{ 111 SXNET *ret=NULL; 112 ASN1_CTX c; 113 M_ASN1_New_Malloc(ret, SXNET); 114 M_ASN1_New(ret->version,ASN1_INTEGER_new); 115 M_ASN1_New(ret->ids,sk_SXNETID_new_null); 116 return (ret); 117 M_ASN1_New_Error(ASN1_F_SXNET_NEW); 118} 119 120SXNET *d2i_SXNET(SXNET **a, unsigned char **pp, long length) 121{ 122 M_ASN1_D2I_vars(a,SXNET *,SXNET_new); 123 M_ASN1_D2I_Init(); 124 M_ASN1_D2I_start_sequence(); 125 M_ASN1_D2I_get (ret->version, d2i_ASN1_INTEGER); 126 M_ASN1_D2I_get_seq_type (SXNETID, ret->ids, d2i_SXNETID, SXNETID_free); 127 M_ASN1_D2I_Finish(a, SXNET_free, ASN1_F_D2I_SXNET); 128} 129 130void SXNET_free(SXNET *a) 131{ 132 if (a == NULL) return; 133 ASN1_INTEGER_free(a->version); 134 sk_SXNETID_pop_free(a->ids, SXNETID_free); 135 Free (a); 136} 137 138int i2d_SXNETID(SXNETID *a, unsigned char **pp) 139{ 140 M_ASN1_I2D_vars(a); 141 142 M_ASN1_I2D_len (a->zone, i2d_ASN1_INTEGER); 143 M_ASN1_I2D_len (a->user, i2d_ASN1_OCTET_STRING); 144 145 M_ASN1_I2D_seq_total(); 146 147 M_ASN1_I2D_put (a->zone, i2d_ASN1_INTEGER); 148 M_ASN1_I2D_put (a->user, i2d_ASN1_OCTET_STRING); 149 150 M_ASN1_I2D_finish(); 151} 152 153SXNETID *SXNETID_new(void) 154{ 155 SXNETID *ret=NULL; 156 ASN1_CTX c; 157 M_ASN1_New_Malloc(ret, SXNETID); 158 ret->zone = NULL; 159 M_ASN1_New(ret->user,ASN1_OCTET_STRING_new); 160 return (ret); 161 M_ASN1_New_Error(ASN1_F_SXNETID_NEW); 162} 163 164SXNETID *d2i_SXNETID(SXNETID **a, unsigned char **pp, long length) 165{ 166 M_ASN1_D2I_vars(a,SXNETID *,SXNETID_new); 167 M_ASN1_D2I_Init(); 168 M_ASN1_D2I_start_sequence(); 169 M_ASN1_D2I_get(ret->zone, d2i_ASN1_INTEGER); 170 M_ASN1_D2I_get(ret->user, d2i_ASN1_OCTET_STRING); 171 M_ASN1_D2I_Finish(a, SXNETID_free, ASN1_F_D2I_SXNETID); 172} 173 174void SXNETID_free(SXNETID *a) 175{ 176 if (a == NULL) return; 177 ASN1_INTEGER_free(a->zone); 178 ASN1_OCTET_STRING_free(a->user); 179 Free (a); 180} 181 182static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, 183 int indent) 184{ 185 long v; 186 char *tmp; 187 SXNETID *id; 188 int i; 189 v = ASN1_INTEGER_get(sx->version); 190 BIO_printf(out, "%*sVersion: %d (0x%X)", indent, "", v + 1, v); 191 for(i = 0; i < sk_SXNETID_num(sx->ids); i++) { 192 id = sk_SXNETID_value(sx->ids, i); 193 tmp = i2s_ASN1_INTEGER(NULL, id->zone); 194 BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp); 195 Free(tmp); 196 ASN1_OCTET_STRING_print(out, id->user); 197 } 198 return 1; 199} 200 201#ifdef SXNET_TEST 202 203/* NBB: this is used for testing only. It should *not* be used for anything 204 * else because it will just take static IDs from the configuration file and 205 * they should really be separate values for each user. 206 */ 207 208 209static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 210 STACK_OF(CONF_VALUE) *nval) 211{ 212 CONF_VALUE *cnf; 213 SXNET *sx = NULL; 214 int i; 215 for(i = 0; i < sk_CONF_VALUE_num(nval); i++) { 216 cnf = sk_CONF_VALUE_value(nval, i); 217 if(!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1)) 218 return NULL; 219 } 220 return sx; 221} 222 223 224#endif 225 226/* Strong Extranet utility functions */ 227 228/* Add an id given the zone as an ASCII number */ 229 230int SXNET_add_id_asc(SXNET **psx, char *zone, char *user, 231 int userlen) 232{ 233 ASN1_INTEGER *izone = NULL; 234 if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) { 235 X509V3err(X509V3_F_SXNET_ADD_ASC,X509V3_R_ERROR_CONVERTING_ZONE); 236 return 0; 237 } 238 return SXNET_add_id_INTEGER(psx, izone, user, userlen); 239} 240 241/* Add an id given the zone as an unsigned long */ 242 243int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user, 244 int userlen) 245{ 246 ASN1_INTEGER *izone = NULL; 247 if(!(izone = ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) { 248 X509V3err(X509V3_F_SXNET_ADD_ID_ULONG,ERR_R_MALLOC_FAILURE); 249 ASN1_INTEGER_free(izone); 250 return 0; 251 } 252 return SXNET_add_id_INTEGER(psx, izone, user, userlen); 253 254} 255 256/* Add an id given the zone as an ASN1_INTEGER. 257 * Note this version uses the passed integer and doesn't make a copy so don't 258 * free it up afterwards. 259 */ 260 261int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, char *user, 262 int userlen) 263{ 264 SXNET *sx = NULL; 265 SXNETID *id = NULL; 266 if(!psx || !zone || !user) { 267 X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,X509V3_R_INVALID_NULL_ARGUMENT); 268 return 0; 269 } 270 if(userlen == -1) userlen = strlen(user); 271 if(userlen > 64) { 272 X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,X509V3_R_USER_TOO_LONG); 273 return 0; 274 } 275 if(!*psx) { 276 if(!(sx = SXNET_new())) goto err; 277 if(!ASN1_INTEGER_set(sx->version, 0)) goto err; 278 *psx = sx; 279 } else sx = *psx; 280 if(SXNET_get_id_INTEGER(sx, zone)) { 281 X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,X509V3_R_DUPLICATE_ZONE_ID); 282 return 0; 283 } 284 285 if(!(id = SXNETID_new())) goto err; 286 if(userlen == -1) userlen = strlen(user); 287 288 if(!ASN1_OCTET_STRING_set(id->user, user, userlen)) goto err; 289 if(!sk_SXNETID_push(sx->ids, id)) goto err; 290 id->zone = zone; 291 return 1; 292 293 err: 294 X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,ERR_R_MALLOC_FAILURE); 295 SXNETID_free(id); 296 SXNET_free(sx); 297 *psx = NULL; 298 return 0; 299} 300 301ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone) 302{ 303 ASN1_INTEGER *izone = NULL; 304 ASN1_OCTET_STRING *oct; 305 if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) { 306 X509V3err(X509V3_F_SXNET_GET_ID_ASC,X509V3_R_ERROR_CONVERTING_ZONE); 307 return NULL; 308 } 309 oct = SXNET_get_id_INTEGER(sx, izone); 310 ASN1_INTEGER_free(izone); 311 return oct; 312} 313 314ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone) 315{ 316 ASN1_INTEGER *izone = NULL; 317 ASN1_OCTET_STRING *oct; 318 if(!(izone = ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) { 319 X509V3err(X509V3_F_SXNET_GET_ID_ULONG,ERR_R_MALLOC_FAILURE); 320 ASN1_INTEGER_free(izone); 321 return NULL; 322 } 323 oct = SXNET_get_id_INTEGER(sx, izone); 324 ASN1_INTEGER_free(izone); 325 return oct; 326} 327 328ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone) 329{ 330 SXNETID *id; 331 int i; 332 for(i = 0; i < sk_SXNETID_num(sx->ids); i++) { 333 id = sk_SXNETID_value(sx->ids, i); 334 if(!ASN1_INTEGER_cmp(id->zone, zone)) return id->user; 335 } 336 return NULL; 337} 338 339IMPLEMENT_STACK_OF(SXNETID) 340IMPLEMENT_ASN1_SET_OF(SXNETID) 341