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284 lines
7.7 KiB
284 lines
7.7 KiB
/* ocsp_lib.c */ |
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/* |
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* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL |
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* project. |
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*/ |
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/* |
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* History: This file was transfered to Richard Levitte from CertCo by Kathy |
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* Weinhold in mid-spring 2000 to be included in OpenSSL or released as a |
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* patch kit. |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* openssl-core@openssl.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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#include <stdio.h> |
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#include <cryptlib.h> |
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#include <openssl/objects.h> |
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#include <openssl/rand.h> |
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#include <openssl/x509.h> |
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#include <openssl/pem.h> |
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#include <openssl/x509v3.h> |
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#include <openssl/ocsp.h> |
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#include <openssl/asn1t.h> |
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/* Convert a certificate and its issuer to an OCSP_CERTID */ |
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OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, X509 *subject, X509 *issuer) |
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{ |
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X509_NAME *iname; |
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ASN1_INTEGER *serial; |
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ASN1_BIT_STRING *ikey; |
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#ifndef OPENSSL_NO_SHA1 |
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if (!dgst) |
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dgst = EVP_sha1(); |
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#endif |
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if (subject) { |
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iname = X509_get_issuer_name(subject); |
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serial = X509_get_serialNumber(subject); |
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} else { |
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iname = X509_get_subject_name(issuer); |
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serial = NULL; |
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} |
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ikey = X509_get0_pubkey_bitstr(issuer); |
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return OCSP_cert_id_new(dgst, iname, ikey, serial); |
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} |
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OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst, |
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X509_NAME *issuerName, |
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ASN1_BIT_STRING *issuerKey, |
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ASN1_INTEGER *serialNumber) |
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{ |
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int nid; |
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unsigned int i; |
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X509_ALGOR *alg; |
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OCSP_CERTID *cid = NULL; |
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unsigned char md[EVP_MAX_MD_SIZE]; |
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if (!(cid = OCSP_CERTID_new())) |
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goto err; |
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alg = cid->hashAlgorithm; |
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if (alg->algorithm != NULL) |
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ASN1_OBJECT_free(alg->algorithm); |
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if ((nid = EVP_MD_type(dgst)) == NID_undef) { |
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OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_UNKNOWN_NID); |
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goto err; |
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} |
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if (!(alg->algorithm = OBJ_nid2obj(nid))) |
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goto err; |
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if ((alg->parameter = ASN1_TYPE_new()) == NULL) |
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goto err; |
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alg->parameter->type = V_ASN1_NULL; |
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if (!X509_NAME_digest(issuerName, dgst, md, &i)) |
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goto digerr; |
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if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i))) |
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goto err; |
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/* Calculate the issuerKey hash, excluding tag and length */ |
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if (!EVP_Digest(issuerKey->data, issuerKey->length, md, &i, dgst, NULL)) |
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goto err; |
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if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i))) |
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goto err; |
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if (serialNumber) { |
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ASN1_INTEGER_free(cid->serialNumber); |
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if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber))) |
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goto err; |
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} |
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return cid; |
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digerr: |
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OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_DIGEST_ERR); |
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err: |
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if (cid) |
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OCSP_CERTID_free(cid); |
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return NULL; |
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} |
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int OCSP_id_issuer_cmp(OCSP_CERTID *a, OCSP_CERTID *b) |
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{ |
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int ret; |
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ret = OBJ_cmp(a->hashAlgorithm->algorithm, b->hashAlgorithm->algorithm); |
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if (ret) |
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return ret; |
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ret = ASN1_OCTET_STRING_cmp(a->issuerNameHash, b->issuerNameHash); |
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if (ret) |
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return ret; |
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return ASN1_OCTET_STRING_cmp(a->issuerKeyHash, b->issuerKeyHash); |
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} |
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int OCSP_id_cmp(OCSP_CERTID *a, OCSP_CERTID *b) |
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{ |
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int ret; |
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ret = OCSP_id_issuer_cmp(a, b); |
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if (ret) |
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return ret; |
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return ASN1_INTEGER_cmp(a->serialNumber, b->serialNumber); |
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} |
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/* |
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* Parse a URL and split it up into host, port and path components and |
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* whether it is SSL. |
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*/ |
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int OCSP_parse_url(char *url, char **phost, char **pport, char **ppath, |
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int *pssl) |
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{ |
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char *p, *buf; |
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char *host, *port; |
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*phost = NULL; |
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*pport = NULL; |
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*ppath = NULL; |
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/* dup the buffer since we are going to mess with it */ |
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buf = BUF_strdup(url); |
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if (!buf) |
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goto mem_err; |
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/* Check for initial colon */ |
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p = strchr(buf, ':'); |
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if (!p) |
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goto parse_err; |
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*(p++) = '\0'; |
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if (!strcmp(buf, "http")) { |
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*pssl = 0; |
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port = "80"; |
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} else if (!strcmp(buf, "https")) { |
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*pssl = 1; |
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port = "443"; |
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} else |
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goto parse_err; |
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/* Check for double slash */ |
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if ((p[0] != '/') || (p[1] != '/')) |
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goto parse_err; |
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p += 2; |
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host = p; |
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/* Check for trailing part of path */ |
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p = strchr(p, '/'); |
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if (!p) |
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*ppath = BUF_strdup("/"); |
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else { |
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*ppath = BUF_strdup(p); |
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/* Set start of path to 0 so hostname is valid */ |
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*p = '\0'; |
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} |
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if (!*ppath) |
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goto mem_err; |
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p = host; |
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if (host[0] == '[') { |
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/* ipv6 literal */ |
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host++; |
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p = strchr(host, ']'); |
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if (!p) |
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goto parse_err; |
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*p = '\0'; |
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p++; |
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} |
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/* Look for optional ':' for port number */ |
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if ((p = strchr(p, ':'))) { |
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*p = 0; |
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port = p + 1; |
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} |
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*pport = BUF_strdup(port); |
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if (!*pport) |
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goto mem_err; |
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*phost = BUF_strdup(host); |
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if (!*phost) |
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goto mem_err; |
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OPENSSL_free(buf); |
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return 1; |
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mem_err: |
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OCSPerr(OCSP_F_OCSP_PARSE_URL, ERR_R_MALLOC_FAILURE); |
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goto err; |
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parse_err: |
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OCSPerr(OCSP_F_OCSP_PARSE_URL, OCSP_R_ERROR_PARSING_URL); |
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err: |
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if (buf) |
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OPENSSL_free(buf); |
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if (*ppath) |
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OPENSSL_free(*ppath); |
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if (*pport) |
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OPENSSL_free(*pport); |
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if (*phost) |
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OPENSSL_free(*phost); |
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return 0; |
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} |
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IMPLEMENT_ASN1_DUP_FUNCTION(OCSP_CERTID)
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