release/src/router/openssl/crypto/ocsp/ocsp_srv.c

   1 /* ocsp_srv.c */
   2 /*
   3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   4  * 2001.
   5  */
   6 /* ====================================================================
   7  * Copyright (c) 1998-2001 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  *    openssl-core@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/objects.h>
  63 #include <openssl/rand.h>
  64 #include <openssl/x509.h>
  65 #include <openssl/pem.h>
  66 #include <openssl/x509v3.h>
  67 #include <openssl/ocsp.h>
  68
  69 /*
  70  * Utility functions related to sending OCSP responses and extracting
  71  * relevant information from the request.
  72  */
  73
  74 int OCSP_request_onereq_count(OCSP_REQUEST *req)
  75 {
  76     return sk_OCSP_ONEREQ_num(req->tbsRequest->requestList);
  77 }
  78
  79 OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
  80 {
  81     return sk_OCSP_ONEREQ_value(req->tbsRequest->requestList, i);
  82 }
  83
  84 OCSP_CERTID *OCSP_onereq_get0_id(OCSP_ONEREQ *one)
  85 {
  86     return one->reqCert;
  87 }
  88
  89 int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
  90                       ASN1_OCTET_STRING **pikeyHash,
  91                       ASN1_INTEGER **pserial, OCSP_CERTID *cid)
  92 {
  93     if (!cid)
  94         return 0;
  95     if (pmd)
  96         *pmd = cid->hashAlgorithm->algorithm;
  97     if (piNameHash)
  98         *piNameHash = cid->issuerNameHash;
  99     if (pikeyHash)
 100         *pikeyHash = cid->issuerKeyHash;
 101     if (pserial)
 102         *pserial = cid->serialNumber;
 103     return 1;
 104 }
 105
 106 int OCSP_request_is_signed(OCSP_REQUEST *req)
 107 {
 108     if (req->optionalSignature)
 109         return 1;
 110     return 0;
 111 }
 112
 113 /* Create an OCSP response and encode an optional basic response */
 114 OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs)
 115 {
 116     OCSP_RESPONSE *rsp = NULL;
 117
 118     if (!(rsp = OCSP_RESPONSE_new()))
 119         goto err;
 120     if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status)))
 121         goto err;
 122     if (!bs)
 123         return rsp;
 124     if (!(rsp->responseBytes = OCSP_RESPBYTES_new()))
 125         goto err;
 126     rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
 127     if (!ASN1_item_pack
 128         (bs, ASN1_ITEM_rptr(OCSP_BASICRESP), &rsp->responseBytes->response))
 129          goto err;
 130     return rsp;
 131  err:
 132     if (rsp)
 133         OCSP_RESPONSE_free(rsp);
 134     return NULL;
 135 }
 136
 137 OCSP_SINGLERESP *OCSP_basic_add1_status(OCSP_BASICRESP *rsp,
 138                                         OCSP_CERTID *cid,
 139                                         int status, int reason,
 140                                         ASN1_TIME *revtime,
 141                                         ASN1_TIME *thisupd,
 142                                         ASN1_TIME *nextupd)
 143 {
 144     OCSP_SINGLERESP *single = NULL;
 145     OCSP_CERTSTATUS *cs;
 146     OCSP_REVOKEDINFO *ri;
 147
 148     if (!rsp->tbsResponseData->responses &&
 149         !(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new_null()))
 150         goto err;
 151
 152     if (!(single = OCSP_SINGLERESP_new()))
 153         goto err;
 154
 155     if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
 156         goto err;
 157     if (nextupd &&
 158         !ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
 159         goto err;
 160
 161     OCSP_CERTID_free(single->certId);
 162
 163     if (!(single->certId = OCSP_CERTID_dup(cid)))
 164         goto err;
 165
 166     cs = single->certStatus;
 167     switch (cs->type = status) {
 168     case V_OCSP_CERTSTATUS_REVOKED:
 169         if (!revtime) {
 170             OCSPerr(OCSP_F_OCSP_BASIC_ADD1_STATUS, OCSP_R_NO_REVOKED_TIME);
 171             goto err;
 172         }
 173         if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new()))
 174             goto err;
 175         if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
 176             goto err;
 177         if (reason != OCSP_REVOKED_STATUS_NOSTATUS) {
 178             if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
 179                 goto err;
 180             if (!(ASN1_ENUMERATED_set(ri->revocationReason, reason)))
 181                 goto err;
 182         }
 183         break;
 184
 185     case V_OCSP_CERTSTATUS_GOOD:
 186         cs->value.good = ASN1_NULL_new();
 187         break;
 188
 189     case V_OCSP_CERTSTATUS_UNKNOWN:
 190         cs->value.unknown = ASN1_NULL_new();
 191         break;
 192
 193     default:
 194         goto err;
 195
 196     }
 197     if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses, single)))
 198         goto err;
 199     return single;
 200  err:
 201     OCSP_SINGLERESP_free(single);
 202     return NULL;
 203 }
 204
 205 /* Add a certificate to an OCSP request */
 206
 207 int OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
 208 {
 209     if (!resp->certs && !(resp->certs = sk_X509_new_null()))
 210         return 0;
 211
 212     if (!sk_X509_push(resp->certs, cert))
 213         return 0;
 214     CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
 215     return 1;
 216 }
 217
 218 int OCSP_basic_sign(OCSP_BASICRESP *brsp,
 219                     X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
 220                     STACK_OF(X509) *certs, unsigned long flags)
 221 {
 222     int i;
 223     OCSP_RESPID *rid;
 224
 225     if (!X509_check_private_key(signer, key)) {
 226         OCSPerr(OCSP_F_OCSP_BASIC_SIGN,
 227                 OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
 228         goto err;
 229     }
 230
 231     if (!(flags & OCSP_NOCERTS)) {
 232         if (!OCSP_basic_add1_cert(brsp, signer))
 233             goto err;
 234         for (i = 0; i < sk_X509_num(certs); i++) {
 235             X509 *tmpcert = sk_X509_value(certs, i);
 236             if (!OCSP_basic_add1_cert(brsp, tmpcert))
 237                 goto err;
 238         }
 239     }
 240
 241     rid = brsp->tbsResponseData->responderId;
 242     if (flags & OCSP_RESPID_KEY) {
 243         unsigned char md[SHA_DIGEST_LENGTH];
 244         X509_pubkey_digest(signer, EVP_sha1(), md, NULL);
 245         if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
 246             goto err;
 247         if (!(ASN1_OCTET_STRING_set(rid->value.byKey, md, SHA_DIGEST_LENGTH)))
 248             goto err;
 249         rid->type = V_OCSP_RESPID_KEY;
 250     } else {
 251         if (!X509_NAME_set(&rid->value.byName, X509_get_subject_name(signer)))
 252             goto err;
 253         rid->type = V_OCSP_RESPID_NAME;
 254     }
 255
 256     if (!(flags & OCSP_NOTIME) &&
 257         !X509_gmtime_adj(brsp->tbsResponseData->producedAt, 0))
 258         goto err;
 259
 260     /*
 261      * Right now, I think that not doing double hashing is the right thing.
 262      * -- Richard Levitte
 263      */
 264
 265     if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0))
 266         goto err;
 267
 268     return 1;
 269  err:
 270     return 0;
 271 }