diff options
Diffstat (limited to 'main/openssl/crypto/ocsp/ocsp_cl.c')
-rw-r--r-- | main/openssl/crypto/ocsp/ocsp_cl.c | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/main/openssl/crypto/ocsp/ocsp_cl.c b/main/openssl/crypto/ocsp/ocsp_cl.c new file mode 100644 index 00000000..9c14d9da --- /dev/null +++ b/main/openssl/crypto/ocsp/ocsp_cl.c @@ -0,0 +1,371 @@ +/* ocsp_cl.c */ +/* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL + * project. */ + +/* History: + This file was transfered to Richard Levitte from CertCo by Kathy + Weinhold in mid-spring 2000 to be included in OpenSSL or released + as a patch kit. */ + +/* ==================================================================== + * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include <stdio.h> +#include <time.h> +#include <cryptlib.h> +#include <openssl/objects.h> +#include <openssl/rand.h> +#include <openssl/x509.h> +#include <openssl/pem.h> +#include <openssl/x509v3.h> +#include <openssl/ocsp.h> + +/* Utility functions related to sending OCSP requests and extracting + * relevant information from the response. + */ + +/* Add an OCSP_CERTID to an OCSP request. Return new OCSP_ONEREQ + * pointer: useful if we want to add extensions. + */ + +OCSP_ONEREQ *OCSP_request_add0_id(OCSP_REQUEST *req, OCSP_CERTID *cid) + { + OCSP_ONEREQ *one = NULL; + + if (!(one = OCSP_ONEREQ_new())) goto err; + if (one->reqCert) OCSP_CERTID_free(one->reqCert); + one->reqCert = cid; + if (req && + !sk_OCSP_ONEREQ_push(req->tbsRequest->requestList, one)) + goto err; + return one; +err: + OCSP_ONEREQ_free(one); + return NULL; + } + +/* Set requestorName from an X509_NAME structure */ + +int OCSP_request_set1_name(OCSP_REQUEST *req, X509_NAME *nm) + { + GENERAL_NAME *gen; + gen = GENERAL_NAME_new(); + if (gen == NULL) + return 0; + if (!X509_NAME_set(&gen->d.directoryName, nm)) + { + GENERAL_NAME_free(gen); + return 0; + } + gen->type = GEN_DIRNAME; + if (req->tbsRequest->requestorName) + GENERAL_NAME_free(req->tbsRequest->requestorName); + req->tbsRequest->requestorName = gen; + return 1; + } + + +/* Add a certificate to an OCSP request */ + +int OCSP_request_add1_cert(OCSP_REQUEST *req, X509 *cert) + { + OCSP_SIGNATURE *sig; + if (!req->optionalSignature) + req->optionalSignature = OCSP_SIGNATURE_new(); + sig = req->optionalSignature; + if (!sig) return 0; + if (!cert) return 1; + if (!sig->certs && !(sig->certs = sk_X509_new_null())) + return 0; + + if(!sk_X509_push(sig->certs, cert)) return 0; + CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509); + return 1; + } + +/* Sign an OCSP request set the requestorName to the subjec + * name of an optional signers certificate and include one + * or more optional certificates in the request. Behaves + * like PKCS7_sign(). + */ + +int OCSP_request_sign(OCSP_REQUEST *req, + X509 *signer, + EVP_PKEY *key, + const EVP_MD *dgst, + STACK_OF(X509) *certs, + unsigned long flags) + { + int i; + OCSP_SIGNATURE *sig; + X509 *x; + + if (!OCSP_request_set1_name(req, X509_get_subject_name(signer))) + goto err; + + if (!(req->optionalSignature = sig = OCSP_SIGNATURE_new())) goto err; + if (key) + { + if (!X509_check_private_key(signer, key)) + { + OCSPerr(OCSP_F_OCSP_REQUEST_SIGN, OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE); + goto err; + } + if (!OCSP_REQUEST_sign(req, key, dgst)) goto err; + } + + if (!(flags & OCSP_NOCERTS)) + { + if(!OCSP_request_add1_cert(req, signer)) goto err; + for (i = 0; i < sk_X509_num(certs); i++) + { + x = sk_X509_value(certs, i); + if (!OCSP_request_add1_cert(req, x)) goto err; + } + } + + return 1; +err: + OCSP_SIGNATURE_free(req->optionalSignature); + req->optionalSignature = NULL; + return 0; + } + +/* Get response status */ + +int OCSP_response_status(OCSP_RESPONSE *resp) + { + return ASN1_ENUMERATED_get(resp->responseStatus); + } + +/* Extract basic response from OCSP_RESPONSE or NULL if + * no basic response present. + */ + + +OCSP_BASICRESP *OCSP_response_get1_basic(OCSP_RESPONSE *resp) + { + OCSP_RESPBYTES *rb; + rb = resp->responseBytes; + if (!rb) + { + OCSPerr(OCSP_F_OCSP_RESPONSE_GET1_BASIC, OCSP_R_NO_RESPONSE_DATA); + return NULL; + } + if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic) + { + OCSPerr(OCSP_F_OCSP_RESPONSE_GET1_BASIC, OCSP_R_NOT_BASIC_RESPONSE); + return NULL; + } + + return ASN1_item_unpack(rb->response, ASN1_ITEM_rptr(OCSP_BASICRESP)); + } + +/* Return number of OCSP_SINGLERESP reponses present in + * a basic response. + */ + +int OCSP_resp_count(OCSP_BASICRESP *bs) + { + if (!bs) return -1; + return sk_OCSP_SINGLERESP_num(bs->tbsResponseData->responses); + } + +/* Extract an OCSP_SINGLERESP response with a given index */ + +OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx) + { + if (!bs) return NULL; + return sk_OCSP_SINGLERESP_value(bs->tbsResponseData->responses, idx); + } + +/* Look single response matching a given certificate ID */ + +int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last) + { + int i; + STACK_OF(OCSP_SINGLERESP) *sresp; + OCSP_SINGLERESP *single; + if (!bs) return -1; + if (last < 0) last = 0; + else last++; + sresp = bs->tbsResponseData->responses; + for (i = last; i < sk_OCSP_SINGLERESP_num(sresp); i++) + { + single = sk_OCSP_SINGLERESP_value(sresp, i); + if (!OCSP_id_cmp(id, single->certId)) return i; + } + return -1; + } + +/* Extract status information from an OCSP_SINGLERESP structure. + * Note: the revtime and reason values are only set if the + * certificate status is revoked. Returns numerical value of + * status. + */ + +int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason, + ASN1_GENERALIZEDTIME **revtime, + ASN1_GENERALIZEDTIME **thisupd, + ASN1_GENERALIZEDTIME **nextupd) + { + int ret; + OCSP_CERTSTATUS *cst; + if(!single) return -1; + cst = single->certStatus; + ret = cst->type; + if (ret == V_OCSP_CERTSTATUS_REVOKED) + { + OCSP_REVOKEDINFO *rev = cst->value.revoked; + if (revtime) *revtime = rev->revocationTime; + if (reason) + { + if(rev->revocationReason) + *reason = ASN1_ENUMERATED_get(rev->revocationReason); + else *reason = -1; + } + } + if(thisupd) *thisupd = single->thisUpdate; + if(nextupd) *nextupd = single->nextUpdate; + return ret; + } + +/* This function combines the previous ones: look up a certificate ID and + * if found extract status information. Return 0 is successful. + */ + +int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status, + int *reason, + ASN1_GENERALIZEDTIME **revtime, + ASN1_GENERALIZEDTIME **thisupd, + ASN1_GENERALIZEDTIME **nextupd) + { + int i; + OCSP_SINGLERESP *single; + i = OCSP_resp_find(bs, id, -1); + /* Maybe check for multiple responses and give an error? */ + if(i < 0) return 0; + single = OCSP_resp_get0(bs, i); + i = OCSP_single_get0_status(single, reason, revtime, thisupd, nextupd); + if(status) *status = i; + return 1; + } + +/* Check validity of thisUpdate and nextUpdate fields. It is possible that the request will + * take a few seconds to process and/or the time wont be totally accurate. Therefore to avoid + * rejecting otherwise valid time we allow the times to be within 'nsec' of the current time. + * Also to avoid accepting very old responses without a nextUpdate field an optional maxage + * parameter specifies the maximum age the thisUpdate field can be. + */ + +int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd, ASN1_GENERALIZEDTIME *nextupd, long nsec, long maxsec) + { + int ret = 1; + time_t t_now, t_tmp; + time(&t_now); + /* Check thisUpdate is valid and not more than nsec in the future */ + if (!ASN1_GENERALIZEDTIME_check(thisupd)) + { + OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_ERROR_IN_THISUPDATE_FIELD); + ret = 0; + } + else + { + t_tmp = t_now + nsec; + if (X509_cmp_time(thisupd, &t_tmp) > 0) + { + OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_NOT_YET_VALID); + ret = 0; + } + + /* If maxsec specified check thisUpdate is not more than maxsec in the past */ + if (maxsec >= 0) + { + t_tmp = t_now - maxsec; + if (X509_cmp_time(thisupd, &t_tmp) < 0) + { + OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_TOO_OLD); + ret = 0; + } + } + } + + + if (!nextupd) return ret; + + /* Check nextUpdate is valid and not more than nsec in the past */ + if (!ASN1_GENERALIZEDTIME_check(nextupd)) + { + OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_ERROR_IN_NEXTUPDATE_FIELD); + ret = 0; + } + else + { + t_tmp = t_now - nsec; + if (X509_cmp_time(nextupd, &t_tmp) < 0) + { + OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_EXPIRED); + ret = 0; + } + } + + /* Also don't allow nextUpdate to precede thisUpdate */ + if (ASN1_STRING_cmp(nextupd, thisupd) < 0) + { + OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE); + ret = 0; + } + + return ret; + } |