1*0Sstevel@tonic-gate /* ocsp_lib.c */ 2*0Sstevel@tonic-gate /* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL 3*0Sstevel@tonic-gate * project. */ 4*0Sstevel@tonic-gate 5*0Sstevel@tonic-gate /* History: 6*0Sstevel@tonic-gate This file was transfered to Richard Levitte from CertCo by Kathy 7*0Sstevel@tonic-gate Weinhold in mid-spring 2000 to be included in OpenSSL or released 8*0Sstevel@tonic-gate as a patch kit. */ 9*0Sstevel@tonic-gate 10*0Sstevel@tonic-gate /* ==================================================================== 11*0Sstevel@tonic-gate * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. 12*0Sstevel@tonic-gate * 13*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 14*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 15*0Sstevel@tonic-gate * are met: 16*0Sstevel@tonic-gate * 17*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 18*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 21*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in 22*0Sstevel@tonic-gate * the documentation and/or other materials provided with the 23*0Sstevel@tonic-gate * distribution. 24*0Sstevel@tonic-gate * 25*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this 26*0Sstevel@tonic-gate * software must display the following acknowledgment: 27*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project 28*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 29*0Sstevel@tonic-gate * 30*0Sstevel@tonic-gate * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 31*0Sstevel@tonic-gate * endorse or promote products derived from this software without 32*0Sstevel@tonic-gate * prior written permission. For written permission, please contact 33*0Sstevel@tonic-gate * openssl-core@openssl.org. 34*0Sstevel@tonic-gate * 35*0Sstevel@tonic-gate * 5. Products derived from this software may not be called "OpenSSL" 36*0Sstevel@tonic-gate * nor may "OpenSSL" appear in their names without prior written 37*0Sstevel@tonic-gate * permission of the OpenSSL Project. 38*0Sstevel@tonic-gate * 39*0Sstevel@tonic-gate * 6. Redistributions of any form whatsoever must retain the following 40*0Sstevel@tonic-gate * acknowledgment: 41*0Sstevel@tonic-gate * "This product includes software developed by the OpenSSL Project 42*0Sstevel@tonic-gate * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 43*0Sstevel@tonic-gate * 44*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 45*0Sstevel@tonic-gate * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 46*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 47*0Sstevel@tonic-gate * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 48*0Sstevel@tonic-gate * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 49*0Sstevel@tonic-gate * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50*0Sstevel@tonic-gate * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 51*0Sstevel@tonic-gate * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 53*0Sstevel@tonic-gate * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 54*0Sstevel@tonic-gate * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 55*0Sstevel@tonic-gate * OF THE POSSIBILITY OF SUCH DAMAGE. 56*0Sstevel@tonic-gate * ==================================================================== 57*0Sstevel@tonic-gate * 58*0Sstevel@tonic-gate * This product includes cryptographic software written by Eric Young 59*0Sstevel@tonic-gate * (eay@cryptsoft.com). This product includes software written by Tim 60*0Sstevel@tonic-gate * Hudson (tjh@cryptsoft.com). 61*0Sstevel@tonic-gate * 62*0Sstevel@tonic-gate */ 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate #include <stdio.h> 65*0Sstevel@tonic-gate #include <cryptlib.h> 66*0Sstevel@tonic-gate #include <openssl/objects.h> 67*0Sstevel@tonic-gate #include <openssl/rand.h> 68*0Sstevel@tonic-gate #include <openssl/x509.h> 69*0Sstevel@tonic-gate #include <openssl/pem.h> 70*0Sstevel@tonic-gate #include <openssl/x509v3.h> 71*0Sstevel@tonic-gate #include <openssl/ocsp.h> 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate /* Convert a certificate and its issuer to an OCSP_CERTID */ 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, X509 *subject, X509 *issuer) 76*0Sstevel@tonic-gate { 77*0Sstevel@tonic-gate X509_NAME *iname; 78*0Sstevel@tonic-gate ASN1_INTEGER *serial; 79*0Sstevel@tonic-gate ASN1_BIT_STRING *ikey; 80*0Sstevel@tonic-gate #ifndef OPENSSL_NO_SHA1 81*0Sstevel@tonic-gate if(!dgst) dgst = EVP_sha1(); 82*0Sstevel@tonic-gate #endif 83*0Sstevel@tonic-gate if (subject) 84*0Sstevel@tonic-gate { 85*0Sstevel@tonic-gate iname = X509_get_issuer_name(subject); 86*0Sstevel@tonic-gate serial = X509_get_serialNumber(subject); 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate else 89*0Sstevel@tonic-gate { 90*0Sstevel@tonic-gate iname = X509_get_subject_name(issuer); 91*0Sstevel@tonic-gate serial = NULL; 92*0Sstevel@tonic-gate } 93*0Sstevel@tonic-gate ikey = X509_get0_pubkey_bitstr(issuer); 94*0Sstevel@tonic-gate return OCSP_cert_id_new(dgst, iname, ikey, serial); 95*0Sstevel@tonic-gate } 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst, 99*0Sstevel@tonic-gate X509_NAME *issuerName, 100*0Sstevel@tonic-gate ASN1_BIT_STRING* issuerKey, 101*0Sstevel@tonic-gate ASN1_INTEGER *serialNumber) 102*0Sstevel@tonic-gate { 103*0Sstevel@tonic-gate int nid; 104*0Sstevel@tonic-gate unsigned int i; 105*0Sstevel@tonic-gate X509_ALGOR *alg; 106*0Sstevel@tonic-gate OCSP_CERTID *cid = NULL; 107*0Sstevel@tonic-gate unsigned char md[EVP_MAX_MD_SIZE]; 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate if (!(cid = OCSP_CERTID_new())) goto err; 110*0Sstevel@tonic-gate 111*0Sstevel@tonic-gate alg = cid->hashAlgorithm; 112*0Sstevel@tonic-gate if (alg->algorithm != NULL) ASN1_OBJECT_free(alg->algorithm); 113*0Sstevel@tonic-gate if ((nid = EVP_MD_type(dgst)) == NID_undef) 114*0Sstevel@tonic-gate { 115*0Sstevel@tonic-gate OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_UNKNOWN_NID); 116*0Sstevel@tonic-gate goto err; 117*0Sstevel@tonic-gate } 118*0Sstevel@tonic-gate if (!(alg->algorithm=OBJ_nid2obj(nid))) goto err; 119*0Sstevel@tonic-gate if ((alg->parameter=ASN1_TYPE_new()) == NULL) goto err; 120*0Sstevel@tonic-gate alg->parameter->type=V_ASN1_NULL; 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate if (!X509_NAME_digest(issuerName, dgst, md, &i)) goto digerr; 123*0Sstevel@tonic-gate if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i))) goto err; 124*0Sstevel@tonic-gate 125*0Sstevel@tonic-gate /* Calculate the issuerKey hash, excluding tag and length */ 126*0Sstevel@tonic-gate EVP_Digest(issuerKey->data, issuerKey->length, md, &i, dgst, NULL); 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i))) goto err; 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate if (serialNumber) 131*0Sstevel@tonic-gate { 132*0Sstevel@tonic-gate ASN1_INTEGER_free(cid->serialNumber); 133*0Sstevel@tonic-gate if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber))) goto err; 134*0Sstevel@tonic-gate } 135*0Sstevel@tonic-gate return cid; 136*0Sstevel@tonic-gate digerr: 137*0Sstevel@tonic-gate OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_DIGEST_ERR); 138*0Sstevel@tonic-gate err: 139*0Sstevel@tonic-gate if (cid) OCSP_CERTID_free(cid); 140*0Sstevel@tonic-gate return NULL; 141*0Sstevel@tonic-gate } 142*0Sstevel@tonic-gate 143*0Sstevel@tonic-gate int OCSP_id_issuer_cmp(OCSP_CERTID *a, OCSP_CERTID *b) 144*0Sstevel@tonic-gate { 145*0Sstevel@tonic-gate int ret; 146*0Sstevel@tonic-gate ret = OBJ_cmp(a->hashAlgorithm->algorithm, b->hashAlgorithm->algorithm); 147*0Sstevel@tonic-gate if (ret) return ret; 148*0Sstevel@tonic-gate ret = ASN1_OCTET_STRING_cmp(a->issuerNameHash, b->issuerNameHash); 149*0Sstevel@tonic-gate if (ret) return ret; 150*0Sstevel@tonic-gate return ASN1_OCTET_STRING_cmp(a->issuerKeyHash, b->issuerKeyHash); 151*0Sstevel@tonic-gate } 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate int OCSP_id_cmp(OCSP_CERTID *a, OCSP_CERTID *b) 154*0Sstevel@tonic-gate { 155*0Sstevel@tonic-gate int ret; 156*0Sstevel@tonic-gate ret = OCSP_id_issuer_cmp(a, b); 157*0Sstevel@tonic-gate if (ret) return ret; 158*0Sstevel@tonic-gate return ASN1_INTEGER_cmp(a->serialNumber, b->serialNumber); 159*0Sstevel@tonic-gate } 160*0Sstevel@tonic-gate 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate /* Parse a URL and split it up into host, port and path components and whether 163*0Sstevel@tonic-gate * it is SSL. 164*0Sstevel@tonic-gate */ 165*0Sstevel@tonic-gate 166*0Sstevel@tonic-gate int OCSP_parse_url(char *url, char **phost, char **pport, char **ppath, int *pssl) 167*0Sstevel@tonic-gate { 168*0Sstevel@tonic-gate char *p, *buf; 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate char *host, *port; 171*0Sstevel@tonic-gate 172*0Sstevel@tonic-gate /* dup the buffer since we are going to mess with it */ 173*0Sstevel@tonic-gate buf = BUF_strdup(url); 174*0Sstevel@tonic-gate if (!buf) goto mem_err; 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate *phost = NULL; 177*0Sstevel@tonic-gate *pport = NULL; 178*0Sstevel@tonic-gate *ppath = NULL; 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate /* Check for initial colon */ 181*0Sstevel@tonic-gate p = strchr(buf, ':'); 182*0Sstevel@tonic-gate 183*0Sstevel@tonic-gate if (!p) goto parse_err; 184*0Sstevel@tonic-gate 185*0Sstevel@tonic-gate *(p++) = '\0'; 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate if (!strcmp(buf, "http")) 188*0Sstevel@tonic-gate { 189*0Sstevel@tonic-gate *pssl = 0; 190*0Sstevel@tonic-gate port = "80"; 191*0Sstevel@tonic-gate } 192*0Sstevel@tonic-gate else if (!strcmp(buf, "https")) 193*0Sstevel@tonic-gate { 194*0Sstevel@tonic-gate *pssl = 1; 195*0Sstevel@tonic-gate port = "443"; 196*0Sstevel@tonic-gate } 197*0Sstevel@tonic-gate else 198*0Sstevel@tonic-gate goto parse_err; 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate /* Check for double slash */ 201*0Sstevel@tonic-gate if ((p[0] != '/') || (p[1] != '/')) 202*0Sstevel@tonic-gate goto parse_err; 203*0Sstevel@tonic-gate 204*0Sstevel@tonic-gate p += 2; 205*0Sstevel@tonic-gate 206*0Sstevel@tonic-gate host = p; 207*0Sstevel@tonic-gate 208*0Sstevel@tonic-gate /* Check for trailing part of path */ 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate p = strchr(p, '/'); 211*0Sstevel@tonic-gate 212*0Sstevel@tonic-gate if (!p) 213*0Sstevel@tonic-gate *ppath = BUF_strdup("/"); 214*0Sstevel@tonic-gate else 215*0Sstevel@tonic-gate { 216*0Sstevel@tonic-gate *ppath = BUF_strdup(p); 217*0Sstevel@tonic-gate /* Set start of path to 0 so hostname is valid */ 218*0Sstevel@tonic-gate *p = '\0'; 219*0Sstevel@tonic-gate } 220*0Sstevel@tonic-gate 221*0Sstevel@tonic-gate if (!*ppath) goto mem_err; 222*0Sstevel@tonic-gate 223*0Sstevel@tonic-gate /* Look for optional ':' for port number */ 224*0Sstevel@tonic-gate if ((p = strchr(host, ':'))) 225*0Sstevel@tonic-gate { 226*0Sstevel@tonic-gate *p = 0; 227*0Sstevel@tonic-gate port = p + 1; 228*0Sstevel@tonic-gate } 229*0Sstevel@tonic-gate else 230*0Sstevel@tonic-gate { 231*0Sstevel@tonic-gate /* Not found: set default port */ 232*0Sstevel@tonic-gate if (*pssl) port = "443"; 233*0Sstevel@tonic-gate else port = "80"; 234*0Sstevel@tonic-gate } 235*0Sstevel@tonic-gate 236*0Sstevel@tonic-gate *pport = BUF_strdup(port); 237*0Sstevel@tonic-gate if (!*pport) goto mem_err; 238*0Sstevel@tonic-gate 239*0Sstevel@tonic-gate *phost = BUF_strdup(host); 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate if (!*phost) goto mem_err; 242*0Sstevel@tonic-gate 243*0Sstevel@tonic-gate OPENSSL_free(buf); 244*0Sstevel@tonic-gate 245*0Sstevel@tonic-gate return 1; 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate mem_err: 248*0Sstevel@tonic-gate OCSPerr(OCSP_F_OCSP_PARSE_URL, ERR_R_MALLOC_FAILURE); 249*0Sstevel@tonic-gate goto err; 250*0Sstevel@tonic-gate 251*0Sstevel@tonic-gate parse_err: 252*0Sstevel@tonic-gate OCSPerr(OCSP_F_OCSP_PARSE_URL, OCSP_R_ERROR_PARSING_URL); 253*0Sstevel@tonic-gate 254*0Sstevel@tonic-gate 255*0Sstevel@tonic-gate err: 256*0Sstevel@tonic-gate if (buf) OPENSSL_free(buf); 257*0Sstevel@tonic-gate if (*ppath) OPENSSL_free(*ppath); 258*0Sstevel@tonic-gate if (*pport) OPENSSL_free(*pport); 259*0Sstevel@tonic-gate if (*phost) OPENSSL_free(*phost); 260*0Sstevel@tonic-gate return 0; 261*0Sstevel@tonic-gate 262*0Sstevel@tonic-gate } 263