[352] | 1 | /* ocsp.c
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| 2 | *
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| 3 | * Copyright (C) 2006-2017 wolfSSL Inc.
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| 4 | *
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| 5 | * This file is part of wolfSSL.
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| 6 | *
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| 7 | * wolfSSL is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * wolfSSL is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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| 20 | */
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| 21 |
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| 22 |
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| 23 | /* Name change compatibility layer no longer needs to be included here */
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| 24 |
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| 25 | #ifdef HAVE_CONFIG_H
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| 26 | #include <config.h>
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| 27 | #endif
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| 28 |
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| 29 | #include <wolfssl/wolfcrypt/settings.h>
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| 30 |
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| 31 | #ifndef WOLFCRYPT_ONLY
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| 32 | #ifdef HAVE_OCSP
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| 33 |
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| 34 | #include <wolfssl/error-ssl.h>
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| 35 | #include <wolfssl/ocsp.h>
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| 36 | #include <wolfssl/internal.h>
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| 37 |
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| 38 | #ifdef NO_INLINE
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| 39 | #include <wolfssl/wolfcrypt/misc.h>
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| 40 | #else
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| 41 | #define WOLFSSL_MISC_INCLUDED
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| 42 | #include <wolfcrypt/src/misc.c>
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| 43 | #endif
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| 44 |
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| 45 |
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| 46 | int InitOCSP(WOLFSSL_OCSP* ocsp, WOLFSSL_CERT_MANAGER* cm)
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| 47 | {
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| 48 | WOLFSSL_ENTER("InitOCSP");
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| 49 |
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| 50 | ForceZero(ocsp, sizeof(WOLFSSL_OCSP));
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| 51 |
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| 52 | if (wc_InitMutex(&ocsp->ocspLock) != 0)
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| 53 | return BAD_MUTEX_E;
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| 54 |
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| 55 | ocsp->cm = cm;
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| 56 |
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| 57 | return 0;
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| 58 | }
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| 59 |
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| 60 |
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| 61 | static int InitOcspEntry(OcspEntry* entry, OcspRequest* request)
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| 62 | {
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| 63 | WOLFSSL_ENTER("InitOcspEntry");
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| 64 |
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| 65 | ForceZero(entry, sizeof(OcspEntry));
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| 66 |
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| 67 | XMEMCPY(entry->issuerHash, request->issuerHash, OCSP_DIGEST_SIZE);
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| 68 | XMEMCPY(entry->issuerKeyHash, request->issuerKeyHash, OCSP_DIGEST_SIZE);
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| 69 |
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| 70 | return 0;
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| 71 | }
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| 72 |
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| 73 |
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| 74 | static void FreeOcspEntry(OcspEntry* entry, void* heap)
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| 75 | {
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| 76 | CertStatus *status, *next;
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| 77 |
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| 78 | WOLFSSL_ENTER("FreeOcspEntry");
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| 79 |
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| 80 | for (status = entry->status; status; status = next) {
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| 81 | next = status->next;
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| 82 |
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| 83 | if (status->rawOcspResponse)
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| 84 | XFREE(status->rawOcspResponse, heap, DYNAMIC_TYPE_OCSP_STATUS);
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| 85 |
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| 86 | XFREE(status, heap, DYNAMIC_TYPE_OCSP_STATUS);
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| 87 | }
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| 88 |
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| 89 | (void)heap;
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| 90 | }
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| 91 |
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| 92 |
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| 93 | void FreeOCSP(WOLFSSL_OCSP* ocsp, int dynamic)
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| 94 | {
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| 95 | OcspEntry *entry, *next;
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| 96 |
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| 97 | WOLFSSL_ENTER("FreeOCSP");
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| 98 |
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| 99 | for (entry = ocsp->ocspList; entry; entry = next) {
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| 100 | next = entry->next;
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| 101 | FreeOcspEntry(entry, ocsp->cm->heap);
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| 102 | XFREE(entry, ocsp->cm->heap, DYNAMIC_TYPE_OCSP_ENTRY);
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| 103 | }
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| 104 |
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| 105 | wc_FreeMutex(&ocsp->ocspLock);
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| 106 |
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| 107 | if (dynamic)
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| 108 | XFREE(ocsp, ocsp->cm->heap, DYNAMIC_TYPE_OCSP);
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| 109 |
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| 110 | }
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| 111 |
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| 112 |
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| 113 | static int xstat2err(int st)
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| 114 | {
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| 115 | switch (st) {
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| 116 | case CERT_GOOD:
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| 117 | return 0;
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| 118 | case CERT_REVOKED:
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| 119 | return OCSP_CERT_REVOKED;
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| 120 | default:
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| 121 | return OCSP_CERT_UNKNOWN;
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| 122 | }
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| 123 | }
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| 124 |
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| 125 | int CheckCertOCSP_ex(WOLFSSL_OCSP* ocsp, DecodedCert* cert, buffer* responseBuffer, WOLFSSL* ssl)
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| 126 | {
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| 127 | int ret = OCSP_LOOKUP_FAIL;
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| 128 |
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| 129 | #ifdef WOLFSSL_SMALL_STACK
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| 130 | OcspRequest* ocspRequest;
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| 131 | #else
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| 132 | OcspRequest ocspRequest[1];
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| 133 | #endif
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| 134 |
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| 135 | WOLFSSL_ENTER("CheckCertOCSP");
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| 136 |
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| 137 |
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| 138 | #ifdef WOLFSSL_SMALL_STACK
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| 139 | ocspRequest = (OcspRequest*)XMALLOC(sizeof(OcspRequest), NULL,
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| 140 | DYNAMIC_TYPE_TMP_BUFFER);
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| 141 | if (ocspRequest == NULL) {
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| 142 | WOLFSSL_LEAVE("CheckCertOCSP", MEMORY_ERROR);
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| 143 | return MEMORY_E;
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| 144 | }
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| 145 | #endif
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| 146 |
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| 147 | if (InitOcspRequest(ocspRequest, cert, ocsp->cm->ocspSendNonce,
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| 148 | ocsp->cm->heap) == 0) {
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| 149 | ocspRequest->ssl = ssl;
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| 150 | ret = CheckOcspRequest(ocsp, ocspRequest, responseBuffer);
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| 151 |
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| 152 | FreeOcspRequest(ocspRequest);
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| 153 | }
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| 154 |
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| 155 | #ifdef WOLFSSL_SMALL_STACK
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| 156 | XFREE(ocspRequest, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 157 | #endif
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| 158 |
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| 159 | WOLFSSL_LEAVE("CheckCertOCSP", ret);
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| 160 | return ret;
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| 161 | }
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| 162 | int CheckCertOCSP(WOLFSSL_OCSP* ocsp, DecodedCert* cert, buffer* responseBuffer)
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| 163 | {
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| 164 | return CheckCertOCSP_ex(ocsp, cert, responseBuffer, NULL);
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| 165 | }
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| 166 |
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| 167 | static int GetOcspEntry(WOLFSSL_OCSP* ocsp, OcspRequest* request,
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| 168 | OcspEntry** entry)
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| 169 | {
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| 170 | WOLFSSL_ENTER("GetOcspEntry");
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| 171 |
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| 172 | *entry = NULL;
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| 173 |
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| 174 | if (wc_LockMutex(&ocsp->ocspLock) != 0) {
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| 175 | WOLFSSL_LEAVE("CheckCertOCSP", BAD_MUTEX_E);
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| 176 | return BAD_MUTEX_E;
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| 177 | }
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| 178 |
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| 179 | for (*entry = ocsp->ocspList; *entry; *entry = (*entry)->next)
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| 180 | if (XMEMCMP((*entry)->issuerHash, request->issuerHash,
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| 181 | OCSP_DIGEST_SIZE) == 0
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| 182 | && XMEMCMP((*entry)->issuerKeyHash, request->issuerKeyHash,
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| 183 | OCSP_DIGEST_SIZE) == 0)
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| 184 | break;
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| 185 |
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| 186 | if (*entry == NULL) {
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| 187 | *entry = (OcspEntry*)XMALLOC(sizeof(OcspEntry),
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| 188 | ocsp->cm->heap, DYNAMIC_TYPE_OCSP_ENTRY);
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| 189 | if (*entry) {
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| 190 | InitOcspEntry(*entry, request);
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| 191 | (*entry)->next = ocsp->ocspList;
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| 192 | ocsp->ocspList = *entry;
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| 193 | }
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| 194 | }
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| 195 |
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| 196 | wc_UnLockMutex(&ocsp->ocspLock);
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| 197 |
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| 198 | return *entry ? 0 : MEMORY_ERROR;
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| 199 | }
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| 200 |
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| 201 |
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| 202 | static int GetOcspStatus(WOLFSSL_OCSP* ocsp, OcspRequest* request,
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| 203 | OcspEntry* entry, CertStatus** status, buffer* responseBuffer)
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| 204 | {
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| 205 | int ret = OCSP_INVALID_STATUS;
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| 206 |
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| 207 | WOLFSSL_ENTER("GetOcspStatus");
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| 208 |
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| 209 | *status = NULL;
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| 210 |
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| 211 | if (wc_LockMutex(&ocsp->ocspLock) != 0) {
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| 212 | WOLFSSL_LEAVE("CheckCertOCSP", BAD_MUTEX_E);
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| 213 | return BAD_MUTEX_E;
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| 214 | }
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| 215 |
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| 216 | for (*status = entry->status; *status; *status = (*status)->next)
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| 217 | if ((*status)->serialSz == request->serialSz
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| 218 | && !XMEMCMP((*status)->serial, request->serial, (*status)->serialSz))
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| 219 | break;
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| 220 |
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| 221 | if (responseBuffer && *status && !(*status)->rawOcspResponse) {
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| 222 | /* force fetching again */
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| 223 | ret = OCSP_INVALID_STATUS;
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| 224 | }
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| 225 | else if (*status) {
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| 226 | #ifndef NO_ASN_TIME
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| 227 | if (ValidateDate((*status)->thisDate, (*status)->thisDateFormat, BEFORE)
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| 228 | && ((*status)->nextDate[0] != 0)
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| 229 | && ValidateDate((*status)->nextDate, (*status)->nextDateFormat, AFTER))
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| 230 | #endif
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| 231 | {
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| 232 | ret = xstat2err((*status)->status);
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| 233 |
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| 234 | if (responseBuffer) {
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| 235 | responseBuffer->buffer = (byte*)XMALLOC(
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| 236 | (*status)->rawOcspResponseSz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 237 |
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| 238 | if (responseBuffer->buffer) {
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| 239 | responseBuffer->length = (*status)->rawOcspResponseSz;
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| 240 | XMEMCPY(responseBuffer->buffer,
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| 241 | (*status)->rawOcspResponse,
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| 242 | (*status)->rawOcspResponseSz);
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| 243 | }
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| 244 | }
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| 245 | }
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| 246 | }
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| 247 |
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| 248 | wc_UnLockMutex(&ocsp->ocspLock);
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| 249 |
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| 250 | return ret;
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| 251 | }
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| 252 |
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| 253 | /* Check that the response for validity. Store result in status.
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| 254 | *
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| 255 | * ocsp Context object for OCSP status.
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| 256 | * response OCSP response message data.
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| 257 | * responseSz Length of OCSP response message data.
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| 258 | * reponseBuffer Buffer object to return the response with.
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| 259 | * status The certificate status object.
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| 260 | * entry The OCSP entry for this certificate.
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| 261 | * returns OCSP_LOOKUP_FAIL when the response is bad and 0 otherwise.
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| 262 | */
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| 263 | static int CheckResponse(WOLFSSL_OCSP* ocsp, byte* response, int responseSz,
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| 264 | buffer* responseBuffer, CertStatus* status,
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| 265 | OcspEntry* entry, OcspRequest* ocspRequest)
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| 266 | {
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| 267 | #ifdef WOLFSSL_SMALL_STACK
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| 268 | CertStatus* newStatus;
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| 269 | OcspResponse* ocspResponse;
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| 270 | #else
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| 271 | CertStatus newStatus[1];
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| 272 | OcspResponse ocspResponse[1];
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| 273 | #endif
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| 274 | int ret;
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| 275 | int validated = 0; /* ocsp validation flag */
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| 276 |
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| 277 | #ifdef WOLFSSL_SMALL_STACK
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| 278 | newStatus = (CertStatus*)XMALLOC(sizeof(CertStatus), NULL,
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| 279 | DYNAMIC_TYPE_TMP_BUFFER);
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| 280 | ocspResponse = (OcspResponse*)XMALLOC(sizeof(OcspResponse), NULL,
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| 281 | DYNAMIC_TYPE_TMP_BUFFER);
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| 282 |
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| 283 | if (newStatus == NULL || ocspResponse == NULL) {
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| 284 | if (newStatus) XFREE(newStatus, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 285 | if (ocspResponse) XFREE(ocspResponse, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 286 |
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| 287 | WOLFSSL_LEAVE("CheckCertOCSP", MEMORY_ERROR);
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| 288 | return MEMORY_E;
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| 289 | }
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| 290 | #endif
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| 291 | XMEMSET(newStatus, 0, sizeof(CertStatus));
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| 292 |
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| 293 | InitOcspResponse(ocspResponse, newStatus, response, responseSz);
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| 294 | ret = OcspResponseDecode(ocspResponse, ocsp->cm, ocsp->cm->heap, 0);
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| 295 | if (ret != 0) {
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| 296 | WOLFSSL_MSG("OcspResponseDecode failed");
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| 297 | goto end;
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| 298 | }
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| 299 |
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| 300 | if (ocspResponse->responseStatus != OCSP_SUCCESSFUL) {
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| 301 | WOLFSSL_MSG("OcspResponse status bad");
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| 302 | goto end;
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| 303 | }
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| 304 | if (ocspRequest != NULL) {
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| 305 | ret = CompareOcspReqResp(ocspRequest, ocspResponse);
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| 306 | if (ret != 0) {
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| 307 | goto end;
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| 308 | }
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| 309 | }
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| 310 |
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| 311 | if (responseBuffer) {
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| 312 | responseBuffer->buffer = (byte*)XMALLOC(responseSz, ocsp->cm->heap,
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| 313 | DYNAMIC_TYPE_TMP_BUFFER);
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| 314 |
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| 315 | if (responseBuffer->buffer) {
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| 316 | responseBuffer->length = responseSz;
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| 317 | XMEMCPY(responseBuffer->buffer, response, responseSz);
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| 318 | }
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| 319 | }
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| 320 |
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| 321 | ret = xstat2err(ocspResponse->status->status);
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| 322 | if (ret == 0) {
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| 323 | validated = 1;
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| 324 | }
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| 325 |
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| 326 | if (wc_LockMutex(&ocsp->ocspLock) != 0) {
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| 327 | ret = BAD_MUTEX_E;
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| 328 | goto end;
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| 329 | }
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| 330 |
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| 331 | if (status != NULL) {
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| 332 | if (status->rawOcspResponse) {
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| 333 | XFREE(status->rawOcspResponse, ocsp->cm->heap,
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| 334 | DYNAMIC_TYPE_OCSP_STATUS);
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| 335 | }
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| 336 |
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| 337 | /* Replace existing certificate entry with updated */
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| 338 | XMEMCPY(status, newStatus, sizeof(CertStatus));
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| 339 | }
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| 340 | else {
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| 341 | /* Save new certificate entry */
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| 342 | status = (CertStatus*)XMALLOC(sizeof(CertStatus),
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| 343 | ocsp->cm->heap, DYNAMIC_TYPE_OCSP_STATUS);
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| 344 | if (status != NULL) {
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| 345 | XMEMCPY(status, newStatus, sizeof(CertStatus));
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| 346 | status->next = entry->status;
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| 347 | entry->status = status;
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| 348 | entry->totalStatus++;
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| 349 | }
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| 350 | }
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| 351 |
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| 352 | if (status && responseBuffer && responseBuffer->buffer) {
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| 353 | status->rawOcspResponse = (byte*)XMALLOC(responseBuffer->length,
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| 354 | ocsp->cm->heap,
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| 355 | DYNAMIC_TYPE_OCSP_STATUS);
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| 356 |
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| 357 | if (status->rawOcspResponse) {
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| 358 | status->rawOcspResponseSz = responseBuffer->length;
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| 359 | XMEMCPY(status->rawOcspResponse, responseBuffer->buffer,
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| 360 | responseBuffer->length);
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| 361 | }
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| 362 | }
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| 363 |
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| 364 | wc_UnLockMutex(&ocsp->ocspLock);
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| 365 |
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| 366 | end:
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| 367 | if (ret == 0 && validated == 1) {
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| 368 | WOLFSSL_MSG("New OcspResponse validated");
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| 369 | } else if (ret != OCSP_CERT_REVOKED) {
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| 370 | ret = OCSP_LOOKUP_FAIL;
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| 371 | }
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| 372 |
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| 373 | #ifdef WOLFSSL_SMALL_STACK
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| 374 | XFREE(newStatus, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 375 | XFREE(ocspResponse, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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| 376 | #endif
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| 377 | return ret;
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| 378 | }
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| 379 |
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| 380 | /* 0 on success */
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| 381 | int CheckOcspRequest(WOLFSSL_OCSP* ocsp, OcspRequest* ocspRequest,
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| 382 | buffer* responseBuffer)
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| 383 | {
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| 384 | OcspEntry* entry = NULL;
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| 385 | CertStatus* status = NULL;
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| 386 | byte* request = NULL;
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| 387 | int requestSz = 2048;
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| 388 | int responseSz = 0;
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| 389 | byte* response = NULL;
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| 390 | const char* url = NULL;
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| 391 | int urlSz = 0;
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| 392 | int ret = -1;
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| 393 | WOLFSSL* ssl;
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| 394 | void* ioCtx;
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| 395 |
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| 396 | WOLFSSL_ENTER("CheckOcspRequest");
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| 397 |
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| 398 | if (ocsp == NULL || ocspRequest == NULL)
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| 399 | return BAD_FUNC_ARG;
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| 400 |
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| 401 | if (responseBuffer) {
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| 402 | responseBuffer->buffer = NULL;
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| 403 | responseBuffer->length = 0;
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| 404 | }
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| 405 |
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| 406 | ret = GetOcspEntry(ocsp, ocspRequest, &entry);
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| 407 | if (ret != 0)
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| 408 | return ret;
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| 409 |
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| 410 | ret = GetOcspStatus(ocsp, ocspRequest, entry, &status, responseBuffer);
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| 411 | if (ret != OCSP_INVALID_STATUS)
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| 412 | return ret;
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| 413 |
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| 414 | /* get SSL and IOCtx */
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| 415 | ssl = (WOLFSSL*)ocspRequest->ssl;
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| 416 | ioCtx = (ssl && ssl->ocspIOCtx != NULL) ?
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| 417 | ssl->ocspIOCtx : ocsp->cm->ocspIOCtx;
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| 418 |
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| 419 | #if defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY)
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| 420 | if (ocsp->statusCb != NULL && ssl != NULL) {
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| 421 | ret = ocsp->statusCb(ssl, ioCtx);
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| 422 | if (ret == 0) {
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| 423 | ret = wolfSSL_get_ocsp_response(ssl, &response);
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| 424 | ret = CheckResponse(ocsp, response, ret, responseBuffer, status,
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| 425 | entry, NULL);
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| 426 | if (response != NULL)
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| 427 | XFREE(response, NULL, DYNAMIC_TYPE_OPENSSL);
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| 428 | return ret;
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| 429 | }
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| 430 | return OCSP_LOOKUP_FAIL;
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| 431 | }
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| 432 | #endif
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| 433 |
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| 434 | if (ocsp->cm->ocspUseOverrideURL) {
|
---|
| 435 | url = ocsp->cm->ocspOverrideURL;
|
---|
| 436 | if (url != NULL && url[0] != '\0')
|
---|
| 437 | urlSz = (int)XSTRLEN(url);
|
---|
| 438 | else
|
---|
| 439 | return OCSP_NEED_URL;
|
---|
| 440 | }
|
---|
| 441 | else if (ocspRequest->urlSz != 0 && ocspRequest->url != NULL) {
|
---|
| 442 | url = (const char *)ocspRequest->url;
|
---|
| 443 | urlSz = ocspRequest->urlSz;
|
---|
| 444 | }
|
---|
| 445 | else {
|
---|
| 446 | /* cert doesn't have extAuthInfo, assuming CERT_GOOD */
|
---|
| 447 | return 0;
|
---|
| 448 | }
|
---|
| 449 |
|
---|
| 450 | request = (byte*)XMALLOC(requestSz, ocsp->cm->heap, DYNAMIC_TYPE_OCSP);
|
---|
| 451 | if (request == NULL) {
|
---|
| 452 | WOLFSSL_LEAVE("CheckCertOCSP", MEMORY_ERROR);
|
---|
| 453 | return MEMORY_ERROR;
|
---|
| 454 | }
|
---|
| 455 |
|
---|
| 456 | requestSz = EncodeOcspRequest(ocspRequest, request, requestSz);
|
---|
| 457 | if (requestSz > 0 && ocsp->cm->ocspIOCb) {
|
---|
| 458 | responseSz = ocsp->cm->ocspIOCb(ioCtx, url, urlSz,
|
---|
| 459 | request, requestSz, &response);
|
---|
| 460 | }
|
---|
| 461 | if (responseSz == WOLFSSL_CBIO_ERR_WANT_READ) {
|
---|
| 462 | ret = WANT_READ;
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | XFREE(request, ocsp->cm->heap, DYNAMIC_TYPE_OCSP);
|
---|
| 466 |
|
---|
| 467 | if (responseSz >= 0 && response) {
|
---|
| 468 | ret = CheckResponse(ocsp, response, responseSz, responseBuffer, status,
|
---|
| 469 | entry, ocspRequest);
|
---|
| 470 | }
|
---|
| 471 |
|
---|
| 472 | if (response != NULL && ocsp->cm->ocspRespFreeCb)
|
---|
| 473 | ocsp->cm->ocspRespFreeCb(ioCtx, response);
|
---|
| 474 |
|
---|
| 475 | WOLFSSL_LEAVE("CheckOcspRequest", ret);
|
---|
| 476 | return ret;
|
---|
| 477 | }
|
---|
| 478 |
|
---|
| 479 | #if defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY)
|
---|
| 480 |
|
---|
| 481 | int wolfSSL_OCSP_resp_find_status(WOLFSSL_OCSP_BASICRESP *bs,
|
---|
| 482 | WOLFSSL_OCSP_CERTID* id, int* status, int* reason,
|
---|
| 483 | WOLFSSL_ASN1_TIME** revtime, WOLFSSL_ASN1_TIME** thisupd,
|
---|
| 484 | WOLFSSL_ASN1_TIME** nextupd)
|
---|
| 485 | {
|
---|
| 486 | if (bs == NULL || id == NULL)
|
---|
| 487 | return WOLFSSL_FAILURE;
|
---|
| 488 |
|
---|
| 489 | /* Only supporting one certificate status in asn.c. */
|
---|
| 490 | if (CompareOcspReqResp(id, bs) != 0)
|
---|
| 491 | return WOLFSSL_FAILURE;
|
---|
| 492 |
|
---|
| 493 | if (status != NULL)
|
---|
| 494 | *status = bs->status->status;
|
---|
| 495 | if (thisupd != NULL)
|
---|
| 496 | *thisupd = (WOLFSSL_ASN1_TIME*)bs->status->thisDateAsn;
|
---|
| 497 | if (nextupd != NULL)
|
---|
| 498 | *nextupd = (WOLFSSL_ASN1_TIME*)bs->status->nextDateAsn;
|
---|
| 499 |
|
---|
| 500 | /* TODO: Not needed for Nginx. */
|
---|
| 501 | if (reason != NULL)
|
---|
| 502 | *reason = 0;
|
---|
| 503 | if (revtime != NULL)
|
---|
| 504 | *revtime = NULL;
|
---|
| 505 |
|
---|
| 506 | return WOLFSSL_SUCCESS;
|
---|
| 507 | }
|
---|
| 508 |
|
---|
| 509 | const char *wolfSSL_OCSP_cert_status_str(long s)
|
---|
| 510 | {
|
---|
| 511 | switch (s) {
|
---|
| 512 | case CERT_GOOD:
|
---|
| 513 | return "good";
|
---|
| 514 | case CERT_REVOKED:
|
---|
| 515 | return "revoked";
|
---|
| 516 | case CERT_UNKNOWN:
|
---|
| 517 | return "unknown";
|
---|
| 518 | default:
|
---|
| 519 | return "(UNKNOWN)";
|
---|
| 520 | }
|
---|
| 521 | }
|
---|
| 522 |
|
---|
| 523 | int wolfSSL_OCSP_check_validity(WOLFSSL_ASN1_TIME* thisupd,
|
---|
| 524 | WOLFSSL_ASN1_TIME* nextupd, long sec, long maxsec)
|
---|
| 525 | {
|
---|
| 526 | (void)thisupd;
|
---|
| 527 | (void)nextupd;
|
---|
| 528 | (void)sec;
|
---|
| 529 | (void)maxsec;
|
---|
| 530 | /* Dates validated in DecodeSingleResponse. */
|
---|
| 531 | return WOLFSSL_SUCCESS;
|
---|
| 532 | }
|
---|
| 533 |
|
---|
| 534 | void wolfSSL_OCSP_CERTID_free(WOLFSSL_OCSP_CERTID* certId)
|
---|
| 535 | {
|
---|
| 536 | FreeOcspRequest(certId);
|
---|
| 537 | XFREE(certId, NULL, DYNAMIC_TYPE_OPENSSL);
|
---|
| 538 | }
|
---|
| 539 |
|
---|
| 540 | WOLFSSL_OCSP_CERTID* wolfSSL_OCSP_cert_to_id(
|
---|
| 541 | const WOLFSSL_EVP_MD *dgst, const WOLFSSL_X509 *subject,
|
---|
| 542 | const WOLFSSL_X509 *issuer)
|
---|
| 543 | {
|
---|
| 544 | WOLFSSL_OCSP_CERTID* certId;
|
---|
| 545 | DecodedCert cert;
|
---|
| 546 | WOLFSSL_CERT_MANAGER* cm;
|
---|
| 547 | int ret;
|
---|
| 548 | DerBuffer* derCert = NULL;
|
---|
| 549 |
|
---|
| 550 | (void)dgst;
|
---|
| 551 |
|
---|
| 552 | cm = wolfSSL_CertManagerNew();
|
---|
| 553 | if (cm == NULL)
|
---|
| 554 | return NULL;
|
---|
| 555 |
|
---|
| 556 | ret = AllocDer(&derCert, issuer->derCert->length,
|
---|
| 557 | issuer->derCert->type, NULL);
|
---|
| 558 | if (ret == 0) {
|
---|
| 559 | /* AddCA() frees the buffer. */
|
---|
| 560 | XMEMCPY(derCert->buffer, issuer->derCert->buffer,
|
---|
| 561 | issuer->derCert->length);
|
---|
| 562 | AddCA(cm, &derCert, WOLFSSL_USER_CA, 1);
|
---|
| 563 | }
|
---|
| 564 |
|
---|
| 565 | certId = (WOLFSSL_OCSP_CERTID*)XMALLOC(sizeof(WOLFSSL_OCSP_CERTID), NULL,
|
---|
| 566 | DYNAMIC_TYPE_OPENSSL);
|
---|
| 567 | if (certId != NULL) {
|
---|
| 568 | InitDecodedCert(&cert, subject->derCert->buffer,
|
---|
| 569 | subject->derCert->length, NULL);
|
---|
| 570 | if (ParseCertRelative(&cert, CERT_TYPE, VERIFY_OCSP, cm) != 0) {
|
---|
| 571 | XFREE(certId, NULL, DYNAMIC_TYPE_OPENSSL);
|
---|
| 572 | certId = NULL;
|
---|
| 573 | }
|
---|
| 574 | else {
|
---|
| 575 | ret = InitOcspRequest(certId, &cert, 0, NULL);
|
---|
| 576 | if (ret != 0) {
|
---|
| 577 | XFREE(certId, NULL, DYNAMIC_TYPE_OPENSSL);
|
---|
| 578 | certId = NULL;
|
---|
| 579 | }
|
---|
| 580 | }
|
---|
| 581 | FreeDecodedCert(&cert);
|
---|
| 582 | }
|
---|
| 583 |
|
---|
| 584 | wolfSSL_CertManagerFree(cm);
|
---|
| 585 |
|
---|
| 586 | return certId;
|
---|
| 587 | }
|
---|
| 588 |
|
---|
| 589 | void wolfSSL_OCSP_BASICRESP_free(WOLFSSL_OCSP_BASICRESP* basicResponse)
|
---|
| 590 | {
|
---|
| 591 | wolfSSL_OCSP_RESPONSE_free(basicResponse);
|
---|
| 592 | }
|
---|
| 593 |
|
---|
| 594 | /* Signature verified in DecodeBasicOcspResponse.
|
---|
| 595 | * But no store available to verify certificate. */
|
---|
| 596 | int wolfSSL_OCSP_basic_verify(WOLFSSL_OCSP_BASICRESP *bs,
|
---|
| 597 | WOLF_STACK_OF(WOLFSSL_X509) *certs, WOLFSSL_X509_STORE *st, unsigned long flags)
|
---|
| 598 | {
|
---|
| 599 | DecodedCert cert;
|
---|
| 600 | int ret = WOLFSSL_SUCCESS;
|
---|
| 601 |
|
---|
| 602 | (void)certs;
|
---|
| 603 |
|
---|
| 604 | if (flags & OCSP_NOVERIFY)
|
---|
| 605 | return WOLFSSL_SUCCESS;
|
---|
| 606 |
|
---|
| 607 | InitDecodedCert(&cert, bs->cert, bs->certSz, NULL);
|
---|
| 608 | if (ParseCertRelative(&cert, CERT_TYPE, VERIFY, st->cm) < 0)
|
---|
| 609 | ret = WOLFSSL_FAILURE;
|
---|
| 610 | FreeDecodedCert(&cert);
|
---|
| 611 |
|
---|
| 612 | return ret;
|
---|
| 613 | }
|
---|
| 614 |
|
---|
| 615 | void wolfSSL_OCSP_RESPONSE_free(OcspResponse* response)
|
---|
| 616 | {
|
---|
| 617 | if (response->status != NULL)
|
---|
| 618 | XFREE(response->status, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 619 | if (response->source != NULL)
|
---|
| 620 | XFREE(response->source, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 621 | XFREE(response, NULL, DYNAMIC_TYPE_OPENSSL);
|
---|
| 622 | }
|
---|
| 623 |
|
---|
| 624 | OcspResponse* wolfSSL_d2i_OCSP_RESPONSE_bio(WOLFSSL_BIO* bio,
|
---|
| 625 | OcspResponse** response)
|
---|
| 626 | {
|
---|
| 627 | byte* data;
|
---|
| 628 | byte* p;
|
---|
| 629 | int len;
|
---|
| 630 | int dataAlloced = 0;
|
---|
| 631 | OcspResponse* ret = NULL;
|
---|
| 632 |
|
---|
| 633 | if (bio == NULL)
|
---|
| 634 | return NULL;
|
---|
| 635 |
|
---|
| 636 | if (bio->type == BIO_MEMORY) {
|
---|
| 637 | len = wolfSSL_BIO_get_mem_data(bio, &data);
|
---|
| 638 | if (len <= 0 || data == NULL) {
|
---|
| 639 | return NULL;
|
---|
| 640 | }
|
---|
| 641 | }
|
---|
| 642 | else if (bio->type == BIO_FILE) {
|
---|
| 643 | long i;
|
---|
| 644 | long l;
|
---|
| 645 |
|
---|
| 646 | i = XFTELL(bio->file);
|
---|
| 647 | if (i < 0)
|
---|
| 648 | return NULL;
|
---|
| 649 | XFSEEK(bio->file, 0, SEEK_END);
|
---|
| 650 | l = XFTELL(bio->file);
|
---|
| 651 | if (l < 0)
|
---|
| 652 | return NULL;
|
---|
| 653 | XFSEEK(bio->file, i, SEEK_SET);
|
---|
| 654 |
|
---|
| 655 | /* check calulated length */
|
---|
| 656 | if (l - i <= 0)
|
---|
| 657 | return NULL;
|
---|
| 658 |
|
---|
| 659 | data = (byte*)XMALLOC(l - i, 0, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 660 | if (data == NULL)
|
---|
| 661 | return NULL;
|
---|
| 662 | dataAlloced = 1;
|
---|
| 663 |
|
---|
| 664 | len = wolfSSL_BIO_read(bio, (char *)data, (int)l);
|
---|
| 665 | }
|
---|
| 666 | else
|
---|
| 667 | return NULL;
|
---|
| 668 |
|
---|
| 669 | if (len > 0) {
|
---|
| 670 | p = data;
|
---|
| 671 | ret = wolfSSL_d2i_OCSP_RESPONSE(response, (const unsigned char **)&p, len);
|
---|
| 672 | }
|
---|
| 673 |
|
---|
| 674 | if (dataAlloced)
|
---|
| 675 | XFREE(data, 0, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 676 |
|
---|
| 677 | return ret;
|
---|
| 678 | }
|
---|
| 679 |
|
---|
| 680 | OcspResponse* wolfSSL_d2i_OCSP_RESPONSE(OcspResponse** response,
|
---|
| 681 | const unsigned char** data, int len)
|
---|
| 682 | {
|
---|
| 683 | OcspResponse *resp = NULL;
|
---|
| 684 | word32 idx = 0;
|
---|
| 685 | int length = 0;
|
---|
| 686 |
|
---|
| 687 | if (data == NULL)
|
---|
| 688 | return NULL;
|
---|
| 689 |
|
---|
| 690 | if (response != NULL)
|
---|
| 691 | resp = *response;
|
---|
| 692 | if (resp == NULL) {
|
---|
| 693 | resp = (OcspResponse*)XMALLOC(sizeof(OcspResponse), NULL,
|
---|
| 694 | DYNAMIC_TYPE_OPENSSL);
|
---|
| 695 | if (resp == NULL)
|
---|
| 696 | return NULL;
|
---|
| 697 | XMEMSET(resp, 0, sizeof(OcspResponse));
|
---|
| 698 | }
|
---|
| 699 |
|
---|
| 700 | resp->source = (byte*)XMALLOC(len, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 701 | if (resp->source == NULL) {
|
---|
| 702 | XFREE(resp, NULL, DYNAMIC_TYPE_OPENSSL);
|
---|
| 703 | return NULL;
|
---|
| 704 | }
|
---|
| 705 | resp->status = (CertStatus*)XMALLOC(sizeof(CertStatus), NULL,
|
---|
| 706 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 707 | if (resp->status == NULL) {
|
---|
| 708 | XFREE(resp->source, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 709 | XFREE(resp, NULL, DYNAMIC_TYPE_OPENSSL);
|
---|
| 710 | return NULL;
|
---|
| 711 | }
|
---|
| 712 |
|
---|
| 713 | XMEMCPY(resp->source, *data, len);
|
---|
| 714 | resp->maxIdx = len;
|
---|
| 715 |
|
---|
| 716 | if (OcspResponseDecode(resp, NULL, NULL, 1) != 0) {
|
---|
| 717 | wolfSSL_OCSP_RESPONSE_free(resp);
|
---|
| 718 | return NULL;
|
---|
| 719 | }
|
---|
| 720 |
|
---|
| 721 | if (GetSequence(*data, &idx, &length, len) >= 0)
|
---|
| 722 | (*data) += idx + length;
|
---|
| 723 |
|
---|
| 724 | return resp;
|
---|
| 725 | }
|
---|
| 726 |
|
---|
| 727 | int wolfSSL_i2d_OCSP_RESPONSE(OcspResponse* response,
|
---|
| 728 | unsigned char** data)
|
---|
| 729 | {
|
---|
| 730 | if (data == NULL)
|
---|
| 731 | return response->maxIdx;
|
---|
| 732 |
|
---|
| 733 | XMEMCPY(*data, response->source, response->maxIdx);
|
---|
| 734 | return response->maxIdx;
|
---|
| 735 | }
|
---|
| 736 |
|
---|
| 737 | int wolfSSL_OCSP_response_status(OcspResponse *response)
|
---|
| 738 | {
|
---|
| 739 | return response->responseStatus;
|
---|
| 740 | }
|
---|
| 741 |
|
---|
| 742 | const char *wolfSSL_OCSP_response_status_str(long s)
|
---|
| 743 | {
|
---|
| 744 | switch (s) {
|
---|
| 745 | case OCSP_SUCCESSFUL:
|
---|
| 746 | return "successful";
|
---|
| 747 | case OCSP_MALFORMED_REQUEST:
|
---|
| 748 | return "malformedrequest";
|
---|
| 749 | case OCSP_INTERNAL_ERROR:
|
---|
| 750 | return "internalerror";
|
---|
| 751 | case OCSP_TRY_LATER:
|
---|
| 752 | return "trylater";
|
---|
| 753 | case OCSP_SIG_REQUIRED:
|
---|
| 754 | return "sigrequired";
|
---|
| 755 | case OCSP_UNAUTHROIZED:
|
---|
| 756 | return "unauthorized";
|
---|
| 757 | default:
|
---|
| 758 | return "(UNKNOWN)";
|
---|
| 759 | }
|
---|
| 760 | }
|
---|
| 761 |
|
---|
| 762 | WOLFSSL_OCSP_BASICRESP* wolfSSL_OCSP_response_get1_basic(OcspResponse* response)
|
---|
| 763 | {
|
---|
| 764 | WOLFSSL_OCSP_BASICRESP* bs;
|
---|
| 765 |
|
---|
| 766 | bs = (WOLFSSL_OCSP_BASICRESP*)XMALLOC(sizeof(WOLFSSL_OCSP_BASICRESP), NULL,
|
---|
| 767 | DYNAMIC_TYPE_OPENSSL);
|
---|
| 768 | if (bs == NULL)
|
---|
| 769 | return NULL;
|
---|
| 770 |
|
---|
| 771 | XMEMCPY(bs, response, sizeof(OcspResponse));
|
---|
| 772 | bs->status = (CertStatus*)XMALLOC(sizeof(CertStatus), NULL,
|
---|
| 773 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 774 | bs->source = (byte*)XMALLOC(bs->maxIdx, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 775 | if (bs->status == NULL || bs->source == NULL) {
|
---|
| 776 | if (bs->status) XFREE(bs->status, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 777 | if (bs->source) XFREE(bs->source, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
| 778 | wolfSSL_OCSP_RESPONSE_free(bs);
|
---|
| 779 | bs = NULL;
|
---|
| 780 | }
|
---|
| 781 | else {
|
---|
| 782 | XMEMCPY(bs->status, response->status, sizeof(CertStatus));
|
---|
| 783 | XMEMCPY(bs->source, response->source, response->maxIdx);
|
---|
| 784 | }
|
---|
| 785 | return bs;
|
---|
| 786 | }
|
---|
| 787 |
|
---|
| 788 | OcspRequest* wolfSSL_OCSP_REQUEST_new(void)
|
---|
| 789 | {
|
---|
| 790 | OcspRequest* request;
|
---|
| 791 |
|
---|
| 792 | request = (OcspRequest*)XMALLOC(sizeof(OcspRequest), NULL,
|
---|
| 793 | DYNAMIC_TYPE_OPENSSL);
|
---|
| 794 | if (request != NULL)
|
---|
| 795 | XMEMSET(request, 0, sizeof(OcspRequest));
|
---|
| 796 |
|
---|
| 797 | return request;
|
---|
| 798 | }
|
---|
| 799 |
|
---|
| 800 | void wolfSSL_OCSP_REQUEST_free(OcspRequest* request)
|
---|
| 801 | {
|
---|
| 802 | FreeOcspRequest(request);
|
---|
| 803 | XFREE(request, NULL, DYNAMIC_TYPE_OPENSSL);
|
---|
| 804 | }
|
---|
| 805 |
|
---|
| 806 | int wolfSSL_i2d_OCSP_REQUEST(OcspRequest* request, unsigned char** data)
|
---|
| 807 | {
|
---|
| 808 | word32 size;
|
---|
| 809 |
|
---|
| 810 | size = EncodeOcspRequest(request, NULL, 0);
|
---|
| 811 | if (size <= 0 || data == NULL)
|
---|
| 812 | return size;
|
---|
| 813 |
|
---|
| 814 | return EncodeOcspRequest(request, *data, size);
|
---|
| 815 | }
|
---|
| 816 |
|
---|
| 817 | WOLFSSL_OCSP_ONEREQ* wolfSSL_OCSP_request_add0_id(OcspRequest *req,
|
---|
| 818 | WOLFSSL_OCSP_CERTID *cid)
|
---|
| 819 | {
|
---|
| 820 | if (req == NULL || cid == NULL)
|
---|
| 821 | return NULL;
|
---|
| 822 |
|
---|
| 823 | FreeOcspRequest(req);
|
---|
| 824 | XMEMCPY(req, cid, sizeof(OcspRequest));
|
---|
| 825 |
|
---|
| 826 | if (cid->serial != NULL) {
|
---|
| 827 | req->serial = (byte*)XMALLOC(cid->serialSz, NULL,
|
---|
| 828 | DYNAMIC_TYPE_OCSP_REQUEST);
|
---|
| 829 | req->url = (byte*)XMALLOC(cid->urlSz, NULL, DYNAMIC_TYPE_OCSP_REQUEST);
|
---|
| 830 | if (req->serial == NULL || req->url == NULL) {
|
---|
| 831 | FreeOcspRequest(req);
|
---|
| 832 | return NULL;
|
---|
| 833 | }
|
---|
| 834 |
|
---|
| 835 | XMEMCPY(req->serial, cid->serial, cid->serialSz);
|
---|
| 836 | XMEMCPY(req->url, cid->url, cid->urlSz);
|
---|
| 837 | }
|
---|
| 838 |
|
---|
| 839 | wolfSSL_OCSP_REQUEST_free(cid);
|
---|
| 840 |
|
---|
| 841 | return req;
|
---|
| 842 | }
|
---|
| 843 |
|
---|
| 844 | #endif
|
---|
| 845 |
|
---|
| 846 | #else /* HAVE_OCSP */
|
---|
| 847 |
|
---|
| 848 |
|
---|
| 849 | #ifdef _MSC_VER
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| 850 | /* 4206 warning for blank file */
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| 851 | #pragma warning(disable: 4206)
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| 852 | #endif
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| 853 |
|
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| 854 |
|
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| 855 | #endif /* HAVE_OCSP */
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| 856 | #endif /* WOLFCRYPT_ONLY */
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| 857 |
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