1 /* 2 * Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <stdio.h> 11 #include "internal/cryptlib.h" 12 #include <openssl/objects.h> 13 #include <openssl/x509.h> 14 #include <openssl/pem.h> 15 #include <openssl/x509v3.h> 16 #include <openssl/ocsp.h> 17 #include "ocsp_local.h" 18 #include <openssl/asn1t.h> 19 20 /* Convert a certificate and its issuer to an OCSP_CERTID */ 21 22 OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, const X509 *subject, 23 const X509 *issuer) 24 { 25 X509_NAME *iname; 26 const ASN1_INTEGER *serial; 27 ASN1_BIT_STRING *ikey; 28 if (!dgst) 29 dgst = EVP_sha1(); 30 if (subject) { 31 iname = X509_get_issuer_name(subject); 32 serial = X509_get0_serialNumber(subject); 33 } else { 34 iname = X509_get_subject_name(issuer); 35 serial = NULL; 36 } 37 ikey = X509_get0_pubkey_bitstr(issuer); 38 return OCSP_cert_id_new(dgst, iname, ikey, serial); 39 } 40 41 OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst, 42 const X509_NAME *issuerName, 43 const ASN1_BIT_STRING *issuerKey, 44 const ASN1_INTEGER *serialNumber) 45 { 46 int nid; 47 unsigned int i; 48 X509_ALGOR *alg; 49 OCSP_CERTID *cid = NULL; 50 unsigned char md[EVP_MAX_MD_SIZE]; 51 52 if ((cid = OCSP_CERTID_new()) == NULL) 53 goto err; 54 55 alg = &cid->hashAlgorithm; 56 ASN1_OBJECT_free(alg->algorithm); 57 if ((nid = EVP_MD_type(dgst)) == NID_undef) { 58 OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_UNKNOWN_NID); 59 goto err; 60 } 61 if ((alg->algorithm = OBJ_nid2obj(nid)) == NULL) 62 goto err; 63 if ((alg->parameter = ASN1_TYPE_new()) == NULL) 64 goto err; 65 alg->parameter->type = V_ASN1_NULL; 66 67 if (!X509_NAME_digest(issuerName, dgst, md, &i)) 68 goto digerr; 69 if (!(ASN1_OCTET_STRING_set(&cid->issuerNameHash, md, i))) 70 goto err; 71 72 /* Calculate the issuerKey hash, excluding tag and length */ 73 if (!EVP_Digest(issuerKey->data, issuerKey->length, md, &i, dgst, NULL)) 74 goto err; 75 76 if (!(ASN1_OCTET_STRING_set(&cid->issuerKeyHash, md, i))) 77 goto err; 78 79 if (serialNumber) { 80 if (ASN1_STRING_copy(&cid->serialNumber, serialNumber) == 0) 81 goto err; 82 } 83 return cid; 84 digerr: 85 OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_DIGEST_ERR); 86 err: 87 OCSP_CERTID_free(cid); 88 return NULL; 89 } 90 91 int OCSP_id_issuer_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b) 92 { 93 int ret; 94 ret = OBJ_cmp(a->hashAlgorithm.algorithm, b->hashAlgorithm.algorithm); 95 if (ret) 96 return ret; 97 ret = ASN1_OCTET_STRING_cmp(&a->issuerNameHash, &b->issuerNameHash); 98 if (ret) 99 return ret; 100 return ASN1_OCTET_STRING_cmp(&a->issuerKeyHash, &b->issuerKeyHash); 101 } 102 103 int OCSP_id_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b) 104 { 105 int ret; 106 ret = OCSP_id_issuer_cmp(a, b); 107 if (ret) 108 return ret; 109 return ASN1_INTEGER_cmp(&a->serialNumber, &b->serialNumber); 110 } 111 112 /* 113 * Parse a URL and split it up into host, port and path components and 114 * whether it is SSL. 115 */ 116 117 int OCSP_parse_url(const char *url, char **phost, char **pport, char **ppath, 118 int *pssl) 119 { 120 char *p, *buf; 121 122 char *host, *port; 123 124 *phost = NULL; 125 *pport = NULL; 126 *ppath = NULL; 127 128 /* dup the buffer since we are going to mess with it */ 129 buf = OPENSSL_strdup(url); 130 if (!buf) 131 goto mem_err; 132 133 /* Check for initial colon */ 134 p = strchr(buf, ':'); 135 136 if (!p) 137 goto parse_err; 138 139 *(p++) = '\0'; 140 141 if (strcmp(buf, "http") == 0) { 142 *pssl = 0; 143 port = "80"; 144 } else if (strcmp(buf, "https") == 0) { 145 *pssl = 1; 146 port = "443"; 147 } else 148 goto parse_err; 149 150 /* Check for double slash */ 151 if ((p[0] != '/') || (p[1] != '/')) 152 goto parse_err; 153 154 p += 2; 155 156 host = p; 157 158 /* Check for trailing part of path */ 159 160 p = strchr(p, '/'); 161 162 if (!p) 163 *ppath = OPENSSL_strdup("/"); 164 else { 165 *ppath = OPENSSL_strdup(p); 166 /* Set start of path to 0 so hostname is valid */ 167 *p = '\0'; 168 } 169 170 if (!*ppath) 171 goto mem_err; 172 173 p = host; 174 if (host[0] == '[') { 175 /* ipv6 literal */ 176 host++; 177 p = strchr(host, ']'); 178 if (!p) 179 goto parse_err; 180 *p = '\0'; 181 p++; 182 } 183 184 /* Look for optional ':' for port number */ 185 if ((p = strchr(p, ':'))) { 186 *p = 0; 187 port = p + 1; 188 } 189 190 *pport = OPENSSL_strdup(port); 191 if (!*pport) 192 goto mem_err; 193 194 *phost = OPENSSL_strdup(host); 195 196 if (!*phost) 197 goto mem_err; 198 199 OPENSSL_free(buf); 200 201 return 1; 202 203 mem_err: 204 OCSPerr(OCSP_F_OCSP_PARSE_URL, ERR_R_MALLOC_FAILURE); 205 goto err; 206 207 parse_err: 208 OCSPerr(OCSP_F_OCSP_PARSE_URL, OCSP_R_ERROR_PARSING_URL); 209 210 err: 211 OPENSSL_free(buf); 212 OPENSSL_free(*ppath); 213 *ppath = NULL; 214 OPENSSL_free(*pport); 215 *pport = NULL; 216 OPENSSL_free(*phost); 217 *phost = NULL; 218 return 0; 219 220 } 221 222 IMPLEMENT_ASN1_DUP_FUNCTION(OCSP_CERTID) 223
Indexes created Sat Feb 28 05:31:39 UTC 2026