crypto/ocsp/v3_ocsp.c

   1 /* v3_ocsp.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/ocsp.h>
  65 # include "ocsp_lcl.h"
  66 # include <openssl/x509v3.h>
  67
  68 /*
  69  * OCSP extensions and a couple of CRL entry extensions
  70  */
  71
  72 static int i2r_ocsp_crlid(const X509V3_EXT_METHOD *method, void *nonce,
  73                           BIO *out, int indent);
  74 static int i2r_ocsp_acutoff(const X509V3_EXT_METHOD *method, void *nonce,
  75                             BIO *out, int indent);
  76 static int i2r_object(const X509V3_EXT_METHOD *method, void *obj, BIO *out,
  77                       int indent);
  78
  79 static void *ocsp_nonce_new(void);
  80 static int i2d_ocsp_nonce(void *a, unsigned char **pp);
  81 static void *d2i_ocsp_nonce(void *a, const unsigned char **pp, long length);
  82 static void ocsp_nonce_free(void *a);
  83 static int i2r_ocsp_nonce(const X509V3_EXT_METHOD *method, void *nonce,
  84                           BIO *out, int indent);
  85
  86 static int i2r_ocsp_nocheck(const X509V3_EXT_METHOD *method,
  87                             void *nocheck, BIO *out, int indent);
  88 static void *s2i_ocsp_nocheck(const X509V3_EXT_METHOD *method,
  89                               X509V3_CTX *ctx, const char *str);
  90 static int i2r_ocsp_serviceloc(const X509V3_EXT_METHOD *method, void *in,
  91                                BIO *bp, int ind);
  92
  93 const X509V3_EXT_METHOD v3_ocsp_crlid = {
  94     NID_id_pkix_OCSP_CrlID, 0, ASN1_ITEM_ref(OCSP_CRLID),
  95     0, 0, 0, 0,
  96     0, 0,
  97     0, 0,
  98     i2r_ocsp_crlid, 0,
  99     NULL
 100 };
 101
 102 const X509V3_EXT_METHOD v3_ocsp_acutoff = {
 103     NID_id_pkix_OCSP_archiveCutoff, 0, ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
 104     0, 0, 0, 0,
 105     0, 0,
 106     0, 0,
 107     i2r_ocsp_acutoff, 0,
 108     NULL
 109 };
 110
 111 const X509V3_EXT_METHOD v3_crl_invdate = {
 112     NID_invalidity_date, 0, ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
 113     0, 0, 0, 0,
 114     0, 0,
 115     0, 0,
 116     i2r_ocsp_acutoff, 0,
 117     NULL
 118 };
 119
 120 const X509V3_EXT_METHOD v3_crl_hold = {
 121     NID_hold_instruction_code, 0, ASN1_ITEM_ref(ASN1_OBJECT),
 122     0, 0, 0, 0,
 123     0, 0,
 124     0, 0,
 125     i2r_object, 0,
 126     NULL
 127 };
 128
 129 const X509V3_EXT_METHOD v3_ocsp_nonce = {
 130     NID_id_pkix_OCSP_Nonce, 0, NULL,
 131     ocsp_nonce_new,
 132     ocsp_nonce_free,
 133     d2i_ocsp_nonce,
 134     i2d_ocsp_nonce,
 135     0, 0,
 136     0, 0,
 137     i2r_ocsp_nonce, 0,
 138     NULL
 139 };
 140
 141 const X509V3_EXT_METHOD v3_ocsp_nocheck = {
 142     NID_id_pkix_OCSP_noCheck, 0, ASN1_ITEM_ref(ASN1_NULL),
 143     0, 0, 0, 0,
 144     0, s2i_ocsp_nocheck,
 145     0, 0,
 146     i2r_ocsp_nocheck, 0,
 147     NULL
 148 };
 149
 150 const X509V3_EXT_METHOD v3_ocsp_serviceloc = {
 151     NID_id_pkix_OCSP_serviceLocator, 0, ASN1_ITEM_ref(OCSP_SERVICELOC),
 152     0, 0, 0, 0,
 153     0, 0,
 154     0, 0,
 155     i2r_ocsp_serviceloc, 0,
 156     NULL
 157 };
 158
 159 static int i2r_ocsp_crlid(const X509V3_EXT_METHOD *method, void *in, BIO *bp,
 160                           int ind)
 161 {
 162     OCSP_CRLID *a = in;
 163     if (a->crlUrl) {
 164         if (BIO_printf(bp, "%*scrlUrl: ", ind, "") <= 0)
 165             goto err;
 166         if (!ASN1_STRING_print(bp, (ASN1_STRING *)a->crlUrl))
 167             goto err;
 168         if (BIO_write(bp, "\n", 1) <= 0)
 169             goto err;
 170     }
 171     if (a->crlNum) {
 172         if (BIO_printf(bp, "%*scrlNum: ", ind, "") <= 0)
 173             goto err;
 174         if (i2a_ASN1_INTEGER(bp, a->crlNum) <= 0)
 175             goto err;
 176         if (BIO_write(bp, "\n", 1) <= 0)
 177             goto err;
 178     }
 179     if (a->crlTime) {
 180         if (BIO_printf(bp, "%*scrlTime: ", ind, "") <= 0)
 181             goto err;
 182         if (!ASN1_GENERALIZEDTIME_print(bp, a->crlTime))
 183             goto err;
 184         if (BIO_write(bp, "\n", 1) <= 0)
 185             goto err;
 186     }
 187     return 1;
 188  err:
 189     return 0;
 190 }
 191
 192 static int i2r_ocsp_acutoff(const X509V3_EXT_METHOD *method, void *cutoff,
 193                             BIO *bp, int ind)
 194 {
 195     if (BIO_printf(bp, "%*s", ind, "") <= 0)
 196         return 0;
 197     if (!ASN1_GENERALIZEDTIME_print(bp, cutoff))
 198         return 0;
 199     return 1;
 200 }
 201
 202 static int i2r_object(const X509V3_EXT_METHOD *method, void *oid, BIO *bp,
 203                       int ind)
 204 {
 205     if (BIO_printf(bp, "%*s", ind, "") <= 0)
 206         return 0;
 207     if (i2a_ASN1_OBJECT(bp, oid) <= 0)
 208         return 0;
 209     return 1;
 210 }
 211
 212 /*
 213  * OCSP nonce. This is needs special treatment because it doesn't have an
 214  * ASN1 encoding at all: it just contains arbitrary data.
 215  */
 216
 217 static void *ocsp_nonce_new(void)
 218 {
 219     return ASN1_OCTET_STRING_new();
 220 }
 221
 222 static int i2d_ocsp_nonce(void *a, unsigned char **pp)
 223 {
 224     ASN1_OCTET_STRING *os = a;
 225     if (pp) {
 226         memcpy(*pp, os->data, os->length);
 227         *pp += os->length;
 228     }
 229     return os->length;
 230 }
 231
 232 static void *d2i_ocsp_nonce(void *a, const unsigned char **pp, long length)
 233 {
 234     ASN1_OCTET_STRING *os, **pos;
 235     pos = a;
 236     if (!pos || !*pos)
 237         os = ASN1_OCTET_STRING_new();
 238     else
 239         os = *pos;
 240     if (!ASN1_OCTET_STRING_set(os, *pp, length))
 241         goto err;
 242
 243     *pp += length;
 244
 245     if (pos)
 246         *pos = os;
 247     return os;
 248
 249  err:
 250     if (os && (!pos || (*pos != os)))
 251         M_ASN1_OCTET_STRING_free(os);
 252     OCSPerr(OCSP_F_D2I_OCSP_NONCE, ERR_R_MALLOC_FAILURE);
 253     return NULL;
 254 }
 255
 256 static void ocsp_nonce_free(void *a)
 257 {
 258     M_ASN1_OCTET_STRING_free(a);
 259 }
 260
 261 static int i2r_ocsp_nonce(const X509V3_EXT_METHOD *method, void *nonce,
 262                           BIO *out, int indent)
 263 {
 264     if (BIO_printf(out, "%*s", indent, "") <= 0)
 265         return 0;
 266     if (i2a_ASN1_STRING(out, nonce, V_ASN1_OCTET_STRING) <= 0)
 267         return 0;
 268     return 1;
 269 }
 270
 271 /* Nocheck is just a single NULL. Don't print anything and always set it */
 272
 273 static int i2r_ocsp_nocheck(const X509V3_EXT_METHOD *method, void *nocheck,
 274                             BIO *out, int indent)
 275 {
 276     return 1;
 277 }
 278
 279 static void *s2i_ocsp_nocheck(const X509V3_EXT_METHOD *method,
 280                               X509V3_CTX *ctx, const char *str)
 281 {
 282     return ASN1_NULL_new();
 283 }
 284
 285 static int i2r_ocsp_serviceloc(const X509V3_EXT_METHOD *method, void *in,
 286                                BIO *bp, int ind)
 287 {
 288     int i;
 289     OCSP_SERVICELOC *a = in;
 290     ACCESS_DESCRIPTION *ad;
 291
 292     if (BIO_printf(bp, "%*sIssuer: ", ind, "") <= 0)
 293         goto err;
 294     if (X509_NAME_print_ex(bp, a->issuer, 0, XN_FLAG_ONELINE) <= 0)
 295         goto err;
 296     for (i = 0; i < sk_ACCESS_DESCRIPTION_num(a->locator); i++) {
 297         ad = sk_ACCESS_DESCRIPTION_value(a->locator, i);
 298         if (BIO_printf(bp, "\n%*s", (2 * ind), "") <= 0)
 299             goto err;
 300         if (i2a_ASN1_OBJECT(bp, ad->method) <= 0)
 301             goto err;
 302         if (BIO_puts(bp, " - ") <= 0)
 303             goto err;
 304         if (GENERAL_NAME_print(bp, ad->location) <= 0)
 305             goto err;
 306     }
 307     return 1;
 308  err:
 309     return 0;
 310 }