Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* v3_sxnet.c */ |
| 2 | /* Written by Dr Stephen N Henson (steve@openssl.org) 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/asn1t.h> |
| 64 | #include <openssl/x509v3.h> |
| 65 | |
| 66 | /* Support for Thawte strong extranet extension */ |
| 67 | |
| 68 | #define SXNET_TEST |
| 69 | |
| 70 | static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, int indent); |
| 71 | #ifdef SXNET_TEST |
| 72 | static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, |
| 73 | STACK_OF(CONF_VALUE) *nval); |
| 74 | #endif |
| 75 | const X509V3_EXT_METHOD v3_sxnet = { |
| 76 | NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET), |
| 77 | 0,0,0,0, |
| 78 | 0,0, |
| 79 | 0, |
| 80 | #ifdef SXNET_TEST |
| 81 | (X509V3_EXT_V2I)sxnet_v2i, |
| 82 | #else |
| 83 | 0, |
| 84 | #endif |
| 85 | (X509V3_EXT_I2R)sxnet_i2r, |
| 86 | 0, |
| 87 | NULL |
| 88 | }; |
| 89 | |
| 90 | ASN1_SEQUENCE(SXNETID) = { |
| 91 | ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER), |
| 92 | ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING) |
| 93 | } ASN1_SEQUENCE_END(SXNETID) |
| 94 | |
| 95 | IMPLEMENT_ASN1_FUNCTIONS(SXNETID) |
| 96 | |
| 97 | ASN1_SEQUENCE(SXNET) = { |
| 98 | ASN1_SIMPLE(SXNET, version, ASN1_INTEGER), |
| 99 | ASN1_SEQUENCE_OF(SXNET, ids, SXNETID) |
| 100 | } ASN1_SEQUENCE_END(SXNET) |
| 101 | |
| 102 | IMPLEMENT_ASN1_FUNCTIONS(SXNET) |
| 103 | |
| 104 | static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, |
| 105 | int indent) |
| 106 | { |
| 107 | long v; |
| 108 | char *tmp; |
| 109 | SXNETID *id; |
| 110 | int i; |
| 111 | v = ASN1_INTEGER_get(sx->version); |
| 112 | BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v); |
| 113 | for(i = 0; i < sk_SXNETID_num(sx->ids); i++) { |
| 114 | id = sk_SXNETID_value(sx->ids, i); |
| 115 | tmp = i2s_ASN1_INTEGER(NULL, id->zone); |
| 116 | BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp); |
| 117 | OPENSSL_free(tmp); |
| 118 | M_ASN1_OCTET_STRING_print(out, id->user); |
| 119 | } |
| 120 | return 1; |
| 121 | } |
| 122 | |
| 123 | #ifdef SXNET_TEST |
| 124 | |
| 125 | /* NBB: this is used for testing only. It should *not* be used for anything |
| 126 | * else because it will just take static IDs from the configuration file and |
| 127 | * they should really be separate values for each user. |
| 128 | */ |
| 129 | |
| 130 | |
| 131 | static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, |
| 132 | STACK_OF(CONF_VALUE) *nval) |
| 133 | { |
| 134 | CONF_VALUE *cnf; |
| 135 | SXNET *sx = NULL; |
| 136 | int i; |
| 137 | for(i = 0; i < sk_CONF_VALUE_num(nval); i++) { |
| 138 | cnf = sk_CONF_VALUE_value(nval, i); |
| 139 | if(!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1)) |
| 140 | return NULL; |
| 141 | } |
| 142 | return sx; |
| 143 | } |
| 144 | |
| 145 | |
| 146 | #endif |
| 147 | |
| 148 | /* Strong Extranet utility functions */ |
| 149 | |
| 150 | /* Add an id given the zone as an ASCII number */ |
| 151 | |
| 152 | int SXNET_add_id_asc(SXNET **psx, char *zone, char *user, |
| 153 | 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 | /* Add an id given the zone as an ASN1_INTEGER. |
| 179 | * Note this version uses the passed integer and doesn't make a copy so don't |
| 180 | * 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,X509V3_R_INVALID_NULL_ARGUMENT); |
| 190 | return 0; |
| 191 | } |
| 192 | if(userlen == -1) userlen = strlen(user); |
| 193 | if(userlen > 64) { |
| 194 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,X509V3_R_USER_TOO_LONG); |
| 195 | return 0; |
| 196 | } |
| 197 | if(!*psx) { |
| 198 | if(!(sx = SXNET_new())) goto err; |
| 199 | if(!ASN1_INTEGER_set(sx->version, 0)) goto err; |
| 200 | *psx = sx; |
| 201 | } else sx = *psx; |
| 202 | if(SXNET_get_id_INTEGER(sx, zone)) { |
| 203 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,X509V3_R_DUPLICATE_ZONE_ID); |
| 204 | return 0; |
| 205 | } |
| 206 | |
| 207 | if(!(id = SXNETID_new())) goto err; |
| 208 | if(userlen == -1) userlen = strlen(user); |
| 209 | |
| 210 | if(!M_ASN1_OCTET_STRING_set(id->user, user, userlen)) goto err; |
| 211 | if(!sk_SXNETID_push(sx->ids, id)) goto err; |
| 212 | id->zone = zone; |
| 213 | return 1; |
| 214 | |
| 215 | err: |
| 216 | X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,ERR_R_MALLOC_FAILURE); |
| 217 | SXNETID_free(id); |
| 218 | SXNET_free(sx); |
| 219 | *psx = NULL; |
| 220 | return 0; |
| 221 | } |
| 222 | |
| 223 | ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone) |
| 224 | { |
| 225 | ASN1_INTEGER *izone = NULL; |
| 226 | ASN1_OCTET_STRING *oct; |
| 227 | if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) { |
| 228 | X509V3err(X509V3_F_SXNET_GET_ID_ASC,X509V3_R_ERROR_CONVERTING_ZONE); |
| 229 | return NULL; |
| 230 | } |
| 231 | oct = SXNET_get_id_INTEGER(sx, izone); |
| 232 | M_ASN1_INTEGER_free(izone); |
| 233 | return oct; |
| 234 | } |
| 235 | |
| 236 | ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone) |
| 237 | { |
| 238 | ASN1_INTEGER *izone = NULL; |
| 239 | ASN1_OCTET_STRING *oct; |
| 240 | if(!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) { |
| 241 | X509V3err(X509V3_F_SXNET_GET_ID_ULONG,ERR_R_MALLOC_FAILURE); |
| 242 | M_ASN1_INTEGER_free(izone); |
| 243 | return NULL; |
| 244 | } |
| 245 | oct = SXNET_get_id_INTEGER(sx, izone); |
| 246 | M_ASN1_INTEGER_free(izone); |
| 247 | return oct; |
| 248 | } |
| 249 | |
| 250 | ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone) |
| 251 | { |
| 252 | SXNETID *id; |
| 253 | int i; |
| 254 | for(i = 0; i < sk_SXNETID_num(sx->ids); i++) { |
| 255 | id = sk_SXNETID_value(sx->ids, i); |
| 256 | if(!M_ASN1_INTEGER_cmp(id->zone, zone)) return id->user; |
| 257 | } |
| 258 | return NULL; |
| 259 | } |
| 260 | |
| 261 | IMPLEMENT_STACK_OF(SXNETID) |
| 262 | IMPLEMENT_ASN1_SET_OF(SXNETID) |