1238 lines
34 KiB
C
1238 lines
34 KiB
C
/* ocsp.c
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*
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* Copyright (C) 2006-2020 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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/* Name change compatibility layer no longer needs to be included here */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <wolfssl/wolfcrypt/settings.h>
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#ifndef WOLFCRYPT_ONLY
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#ifdef HAVE_OCSP
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#include <wolfssl/error-ssl.h>
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#include <wolfssl/ocsp.h>
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#include <wolfssl/internal.h>
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#ifdef NO_INLINE
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#include <wolfssl/wolfcrypt/misc.h>
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#else
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#define WOLFSSL_MISC_INCLUDED
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#include <wolfcrypt/src/misc.c>
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#endif
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int InitOCSP(WOLFSSL_OCSP* ocsp, WOLFSSL_CERT_MANAGER* cm)
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{
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WOLFSSL_ENTER("InitOCSP");
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ForceZero(ocsp, sizeof(WOLFSSL_OCSP));
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if (wc_InitMutex(&ocsp->ocspLock) != 0)
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return BAD_MUTEX_E;
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ocsp->cm = cm;
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return 0;
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}
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static int InitOcspEntry(OcspEntry* entry, OcspRequest* request)
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{
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WOLFSSL_ENTER("InitOcspEntry");
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ForceZero(entry, sizeof(OcspEntry));
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XMEMCPY(entry->issuerHash, request->issuerHash, OCSP_DIGEST_SIZE);
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XMEMCPY(entry->issuerKeyHash, request->issuerKeyHash, OCSP_DIGEST_SIZE);
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return 0;
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}
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static void FreeOcspEntry(OcspEntry* entry, void* heap)
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{
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CertStatus *status, *next;
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if (entry == NULL)
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return;
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WOLFSSL_ENTER("FreeOcspEntry");
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for (status = entry->status; status; status = next) {
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next = status->next;
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if (status->rawOcspResponse)
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XFREE(status->rawOcspResponse, heap, DYNAMIC_TYPE_OCSP_STATUS);
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#ifdef OPENSSL_EXTRA
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if (status->serialInt) {
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if (status->serialInt->isDynamic) {
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XFREE(status->serialInt->data, NULL, DYNAMIC_TYPE_OPENSSL);
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}
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XFREE(status->serialInt, NULL, DYNAMIC_TYPE_OPENSSL);
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}
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status->serialInt = NULL;
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#endif
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XFREE(status, heap, DYNAMIC_TYPE_OCSP_STATUS);
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}
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(void)heap;
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}
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void FreeOCSP(WOLFSSL_OCSP* ocsp, int dynamic)
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{
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OcspEntry *entry, *next;
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WOLFSSL_ENTER("FreeOCSP");
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for (entry = ocsp->ocspList; entry; entry = next) {
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next = entry->next;
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FreeOcspEntry(entry, ocsp->cm->heap);
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XFREE(entry, ocsp->cm->heap, DYNAMIC_TYPE_OCSP_ENTRY);
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}
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wc_FreeMutex(&ocsp->ocspLock);
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if (dynamic)
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XFREE(ocsp, ocsp->cm->heap, DYNAMIC_TYPE_OCSP);
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}
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static int xstat2err(int st)
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{
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switch (st) {
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case CERT_GOOD:
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return 0;
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case CERT_REVOKED:
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return OCSP_CERT_REVOKED;
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default:
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return OCSP_CERT_UNKNOWN;
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}
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}
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int CheckCertOCSP_ex(WOLFSSL_OCSP* ocsp, DecodedCert* cert, buffer* responseBuffer, WOLFSSL* ssl)
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{
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int ret = OCSP_LOOKUP_FAIL;
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#ifdef WOLFSSL_SMALL_STACK
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OcspRequest* ocspRequest;
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#else
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OcspRequest ocspRequest[1];
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#endif
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WOLFSSL_ENTER("CheckCertOCSP");
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#ifdef WOLFSSL_SMALL_STACK
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ocspRequest = (OcspRequest*)XMALLOC(sizeof(OcspRequest), NULL,
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DYNAMIC_TYPE_TMP_BUFFER);
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if (ocspRequest == NULL) {
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WOLFSSL_LEAVE("CheckCertOCSP", MEMORY_ERROR);
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return MEMORY_E;
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}
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#endif
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if (InitOcspRequest(ocspRequest, cert, ocsp->cm->ocspSendNonce,
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ocsp->cm->heap) == 0) {
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ocspRequest->ssl = ssl;
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ret = CheckOcspRequest(ocsp, ocspRequest, responseBuffer);
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FreeOcspRequest(ocspRequest);
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}
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#ifdef WOLFSSL_SMALL_STACK
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XFREE(ocspRequest, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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#endif
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WOLFSSL_LEAVE("CheckCertOCSP", ret);
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return ret;
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}
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int CheckCertOCSP(WOLFSSL_OCSP* ocsp, DecodedCert* cert, buffer* responseBuffer)
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{
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return CheckCertOCSP_ex(ocsp, cert, responseBuffer, NULL);
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}
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static int GetOcspEntry(WOLFSSL_OCSP* ocsp, OcspRequest* request,
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OcspEntry** entry)
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{
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WOLFSSL_ENTER("GetOcspEntry");
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*entry = NULL;
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if (wc_LockMutex(&ocsp->ocspLock) != 0) {
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WOLFSSL_LEAVE("CheckCertOCSP", BAD_MUTEX_E);
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return BAD_MUTEX_E;
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}
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for (*entry = ocsp->ocspList; *entry; *entry = (*entry)->next)
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if (XMEMCMP((*entry)->issuerHash, request->issuerHash,
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OCSP_DIGEST_SIZE) == 0
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&& XMEMCMP((*entry)->issuerKeyHash, request->issuerKeyHash,
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OCSP_DIGEST_SIZE) == 0)
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break;
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if (*entry == NULL) {
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*entry = (OcspEntry*)XMALLOC(sizeof(OcspEntry),
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ocsp->cm->heap, DYNAMIC_TYPE_OCSP_ENTRY);
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if (*entry) {
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InitOcspEntry(*entry, request);
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(*entry)->next = ocsp->ocspList;
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ocsp->ocspList = *entry;
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}
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}
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wc_UnLockMutex(&ocsp->ocspLock);
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return *entry ? 0 : MEMORY_ERROR;
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}
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/* Mallocs responseBuffer->buffer and is up to caller to free on success
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*
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* Returns OCSP status
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*/
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static int GetOcspStatus(WOLFSSL_OCSP* ocsp, OcspRequest* request,
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OcspEntry* entry, CertStatus** status, buffer* responseBuffer)
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{
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int ret = OCSP_INVALID_STATUS;
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WOLFSSL_ENTER("GetOcspStatus");
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*status = NULL;
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if (wc_LockMutex(&ocsp->ocspLock) != 0) {
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WOLFSSL_LEAVE("CheckCertOCSP", BAD_MUTEX_E);
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return BAD_MUTEX_E;
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}
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for (*status = entry->status; *status; *status = (*status)->next)
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if ((*status)->serialSz == request->serialSz
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&& !XMEMCMP((*status)->serial, request->serial, (*status)->serialSz))
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break;
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if (responseBuffer && *status && !(*status)->rawOcspResponse) {
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/* force fetching again */
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ret = OCSP_INVALID_STATUS;
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}
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else if (*status) {
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#ifndef NO_ASN_TIME
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if (XVALIDATE_DATE((*status)->thisDate,
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(*status)->thisDateFormat, BEFORE)
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&& ((*status)->nextDate[0] != 0)
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&& XVALIDATE_DATE((*status)->nextDate,
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(*status)->nextDateFormat, AFTER))
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#endif
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{
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ret = xstat2err((*status)->status);
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if (responseBuffer) {
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responseBuffer->buffer = (byte*)XMALLOC(
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(*status)->rawOcspResponseSz, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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if (responseBuffer->buffer) {
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responseBuffer->length = (*status)->rawOcspResponseSz;
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XMEMCPY(responseBuffer->buffer,
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(*status)->rawOcspResponse,
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(*status)->rawOcspResponseSz);
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}
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}
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}
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}
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wc_UnLockMutex(&ocsp->ocspLock);
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return ret;
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}
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/* Check that the response for validity. Store result in status.
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*
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* ocsp Context object for OCSP status.
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* response OCSP response message data.
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* responseSz Length of OCSP response message data.
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* reponseBuffer Buffer object to return the response with.
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* status The certificate status object.
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* entry The OCSP entry for this certificate.
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* returns OCSP_LOOKUP_FAIL when the response is bad and 0 otherwise.
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*/
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WOLFSSL_LOCAL int CheckOcspResponse(WOLFSSL_OCSP *ocsp, byte *response, int responseSz,
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WOLFSSL_BUFFER_INFO *responseBuffer, CertStatus *status,
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OcspEntry *entry, OcspRequest *ocspRequest)
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{
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#ifdef WOLFSSL_SMALL_STACK
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CertStatus* newStatus;
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OcspEntry* newSingle;
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OcspResponse* ocspResponse;
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#else
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CertStatus newStatus[1];
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OcspEntry newSingle[1];
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OcspResponse ocspResponse[1];
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#endif
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int ret;
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int validated = 0; /* ocsp validation flag */
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#ifdef WOLFSSL_SMALL_STACK
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newStatus = (CertStatus*)XMALLOC(sizeof(CertStatus), NULL,
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DYNAMIC_TYPE_OCSP_STATUS);
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newSingle = (OcspEntry*)XMALLOC(sizeof(OcspEntry), NULL,
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DYNAMIC_TYPE_OCSP_ENTRY);
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ocspResponse = (OcspResponse*)XMALLOC(sizeof(OcspResponse), NULL,
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DYNAMIC_TYPE_OCSP_REQUEST);
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if (newStatus == NULL || newSingle == NULL || ocspResponse == NULL) {
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if (newStatus) XFREE(newStatus, NULL, DYNAMIC_TYPE_OCSP_STATUS);
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if (newSingle) XFREE(newSingle, NULL, DYNAMIC_TYPE_OCSP_ENTRY);
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if (ocspResponse) XFREE(ocspResponse, NULL, DYNAMIC_TYPE_OCSP_REQUEST);
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WOLFSSL_LEAVE("CheckCertOCSP", MEMORY_ERROR);
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return MEMORY_E;
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}
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#endif
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InitOcspResponse(ocspResponse, newSingle, newStatus, response, responseSz,
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ocsp->cm->heap);
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ret = OcspResponseDecode(ocspResponse, ocsp->cm, ocsp->cm->heap, 0);
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if (ret != 0) {
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ocsp->error = ret;
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WOLFSSL_LEAVE("OcspResponseDecode failed", ocsp->error);
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goto end;
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}
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if (ocspResponse->responseStatus != OCSP_SUCCESSFUL) {
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WOLFSSL_MSG("OcspResponse status bad");
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goto end;
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}
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if (ocspRequest != NULL) {
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ret = CompareOcspReqResp(ocspRequest, ocspResponse);
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if (ret != 0) {
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goto end;
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}
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}
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if (responseBuffer) {
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responseBuffer->buffer = (byte*)XMALLOC(responseSz, ocsp->cm->heap,
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DYNAMIC_TYPE_TMP_BUFFER);
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if (responseBuffer->buffer) {
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responseBuffer->length = responseSz;
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XMEMCPY(responseBuffer->buffer, response, responseSz);
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}
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}
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ret = xstat2err(ocspResponse->single->status->status);
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if (ret == 0) {
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validated = 1;
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}
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if (wc_LockMutex(&ocsp->ocspLock) != 0) {
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ret = BAD_MUTEX_E;
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goto end;
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}
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if (status != NULL) {
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if (status->rawOcspResponse) {
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XFREE(status->rawOcspResponse, ocsp->cm->heap,
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DYNAMIC_TYPE_OCSP_STATUS);
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}
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/* Replace existing certificate entry with updated */
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newSingle->status->next = status->next;
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XMEMCPY(status, newSingle->status, sizeof(CertStatus));
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}
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else {
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/* Save new certificate entry */
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status = (CertStatus*)XMALLOC(sizeof(CertStatus),
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ocsp->cm->heap, DYNAMIC_TYPE_OCSP_STATUS);
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if (status != NULL) {
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XMEMCPY(status, newSingle->status, sizeof(CertStatus));
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status->next = entry->status;
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entry->status = status;
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entry->totalStatus++;
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}
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}
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if (status && responseBuffer && responseBuffer->buffer) {
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status->rawOcspResponse = (byte*)XMALLOC(responseBuffer->length,
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ocsp->cm->heap,
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DYNAMIC_TYPE_OCSP_STATUS);
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if (status->rawOcspResponse) {
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status->rawOcspResponseSz = responseBuffer->length;
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XMEMCPY(status->rawOcspResponse, responseBuffer->buffer,
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responseBuffer->length);
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}
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}
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wc_UnLockMutex(&ocsp->ocspLock);
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end:
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if (ret == 0 && validated == 1) {
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WOLFSSL_MSG("New OcspResponse validated");
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} else if (ret != OCSP_CERT_REVOKED) {
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ret = OCSP_LOOKUP_FAIL;
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}
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#ifdef WOLFSSL_SMALL_STACK
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XFREE(newStatus, NULL, DYNAMIC_TYPE_OCSP_STATUS);
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XFREE(newSingle, NULL, DYNAMIC_TYPE_OCSP_ENTRY);
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XFREE(ocspResponse, NULL, DYNAMIC_TYPE_OCSP_REQUEST);
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#endif
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return ret;
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}
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/* 0 on success */
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int CheckOcspRequest(WOLFSSL_OCSP* ocsp, OcspRequest* ocspRequest,
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buffer* responseBuffer)
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{
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OcspEntry* entry = NULL;
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CertStatus* status = NULL;
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byte* request = NULL;
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int requestSz = 2048;
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int responseSz = 0;
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byte* response = NULL;
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const char* url = NULL;
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int urlSz = 0;
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int ret = -1;
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WOLFSSL* ssl;
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void* ioCtx;
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WOLFSSL_ENTER("CheckOcspRequest");
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if (ocsp == NULL || ocspRequest == NULL)
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return BAD_FUNC_ARG;
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if (responseBuffer) {
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responseBuffer->buffer = NULL;
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responseBuffer->length = 0;
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}
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ret = GetOcspEntry(ocsp, ocspRequest, &entry);
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if (ret != 0)
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return ret;
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ret = GetOcspStatus(ocsp, ocspRequest, entry, &status, responseBuffer);
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if (ret != OCSP_INVALID_STATUS)
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return ret;
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/* get SSL and IOCtx */
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ssl = (WOLFSSL*)ocspRequest->ssl;
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ioCtx = (ssl && ssl->ocspIOCtx != NULL) ?
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ssl->ocspIOCtx : ocsp->cm->ocspIOCtx;
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#if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY)
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if (ocsp->statusCb != NULL && ssl != NULL) {
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ret = ocsp->statusCb(ssl, ioCtx);
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if (ret == 0) {
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ret = wolfSSL_get_ocsp_response(ssl, &response);
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ret = CheckOcspResponse(ocsp, response, ret, responseBuffer, status,
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entry, NULL);
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if (response != NULL)
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XFREE(response, NULL, DYNAMIC_TYPE_OPENSSL);
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return ret;
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}
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WOLFSSL_LEAVE("CheckOcspRequest", ocsp->error);
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return OCSP_LOOKUP_FAIL;
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}
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#endif
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if (ocsp->cm->ocspUseOverrideURL) {
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url = ocsp->cm->ocspOverrideURL;
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if (url != NULL && url[0] != '\0')
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urlSz = (int)XSTRLEN(url);
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else
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return OCSP_NEED_URL;
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}
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else if (ocspRequest->urlSz != 0 && ocspRequest->url != NULL) {
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url = (const char *)ocspRequest->url;
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urlSz = ocspRequest->urlSz;
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}
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else {
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/* cert doesn't have extAuthInfo, assuming CERT_GOOD */
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WOLFSSL_MSG("Cert has no OCSP URL, assuming CERT_GOOD");
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return 0;
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}
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|
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request = (byte*)XMALLOC(requestSz, ocsp->cm->heap, DYNAMIC_TYPE_OCSP);
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if (request == NULL) {
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WOLFSSL_LEAVE("CheckCertOCSP", MEMORY_ERROR);
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if (responseBuffer) {
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XFREE(responseBuffer->buffer, NULL, DYNAMIC_TYPE_TMP_BUFFER);
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responseBuffer->buffer = NULL;
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}
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return MEMORY_ERROR;
|
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}
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|
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requestSz = EncodeOcspRequest(ocspRequest, request, requestSz);
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if (requestSz > 0 && ocsp->cm->ocspIOCb) {
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responseSz = ocsp->cm->ocspIOCb(ioCtx, url, urlSz,
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request, requestSz, &response);
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}
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if (responseSz == WOLFSSL_CBIO_ERR_WANT_READ) {
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ret = OCSP_WANT_READ;
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}
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|
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XFREE(request, ocsp->cm->heap, DYNAMIC_TYPE_OCSP);
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|
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if (responseSz >= 0 && response) {
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ret = CheckOcspResponse(ocsp, response, responseSz, responseBuffer, status,
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entry, ocspRequest);
|
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}
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|
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if (response != NULL && ocsp->cm->ocspRespFreeCb)
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ocsp->cm->ocspRespFreeCb(ioCtx, response);
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|
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/* Keep responseBuffer in the case of getting to response check. Caller
|
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* should free responseBuffer after checking OCSP return value in "ret" */
|
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WOLFSSL_LEAVE("CheckOcspRequest", ret);
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return ret;
|
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}
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|
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#if defined(OPENSSL_ALL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) || \
|
|
defined(WOLFSSL_APACHE_HTTPD) || defined(HAVE_LIGHTY)
|
|
|
|
int wolfSSL_OCSP_resp_find_status(WOLFSSL_OCSP_BASICRESP *bs,
|
|
WOLFSSL_OCSP_CERTID* id, int* status, int* reason,
|
|
WOLFSSL_ASN1_TIME** revtime, WOLFSSL_ASN1_TIME** thisupd,
|
|
WOLFSSL_ASN1_TIME** nextupd)
|
|
{
|
|
WOLFSSL_OCSP_SINGLERESP* single;
|
|
|
|
if (bs == NULL || id == NULL)
|
|
return WOLFSSL_FAILURE;
|
|
|
|
single = bs->single;
|
|
while (single != NULL) {
|
|
if ((XMEMCMP(single->status->serial, id->status->serial, single->status->serialSz) == 0)
|
|
&& (XMEMCMP(single->issuerHash, id->issuerHash, OCSP_DIGEST_SIZE) == 0)
|
|
&& (XMEMCMP(single->issuerKeyHash, id->issuerKeyHash, OCSP_DIGEST_SIZE) == 0)) {
|
|
break;
|
|
}
|
|
single = single->next;
|
|
}
|
|
|
|
if (single == NULL)
|
|
return WOLFSSL_FAILURE;
|
|
|
|
if (status != NULL)
|
|
*status = single->status->status;
|
|
if (thisupd != NULL)
|
|
*thisupd = &single->status->thisDateParsed;
|
|
if (nextupd != NULL)
|
|
*nextupd = &single->status->nextDateParsed;
|
|
|
|
/* TODO: Not needed for Nginx or httpd */
|
|
if (reason != NULL)
|
|
*reason = 0;
|
|
if (revtime != NULL)
|
|
*revtime = NULL;
|
|
|
|
return WOLFSSL_SUCCESS;
|
|
}
|
|
|
|
const char *wolfSSL_OCSP_cert_status_str(long s)
|
|
{
|
|
switch (s) {
|
|
case CERT_GOOD:
|
|
return "good";
|
|
case CERT_REVOKED:
|
|
return "revoked";
|
|
case CERT_UNKNOWN:
|
|
return "unknown";
|
|
default:
|
|
return "(UNKNOWN)";
|
|
}
|
|
}
|
|
|
|
int wolfSSL_OCSP_check_validity(WOLFSSL_ASN1_TIME* thisupd,
|
|
WOLFSSL_ASN1_TIME* nextupd, long sec, long maxsec)
|
|
{
|
|
(void)thisupd;
|
|
(void)nextupd;
|
|
(void)sec;
|
|
(void)maxsec;
|
|
/* Dates validated in DecodeSingleResponse. */
|
|
return WOLFSSL_SUCCESS;
|
|
}
|
|
|
|
void wolfSSL_OCSP_CERTID_free(WOLFSSL_OCSP_CERTID* certId)
|
|
{
|
|
FreeOcspEntry(certId, NULL);
|
|
XFREE(certId, NULL, DYNAMIC_TYPE_OPENSSL);
|
|
}
|
|
|
|
WOLFSSL_OCSP_CERTID* wolfSSL_OCSP_cert_to_id(
|
|
const WOLFSSL_EVP_MD *dgst, const WOLFSSL_X509 *subject,
|
|
const WOLFSSL_X509 *issuer)
|
|
{
|
|
WOLFSSL_OCSP_CERTID* certId;
|
|
CertStatus* certStatus;
|
|
DecodedCert cert;
|
|
WOLFSSL_CERT_MANAGER* cm;
|
|
int ret;
|
|
DerBuffer* derCert = NULL;
|
|
|
|
(void)dgst;
|
|
|
|
cm = wolfSSL_CertManagerNew();
|
|
if (cm == NULL)
|
|
return NULL;
|
|
|
|
ret = AllocDer(&derCert, issuer->derCert->length,
|
|
issuer->derCert->type, NULL);
|
|
if (ret == 0) {
|
|
/* AddCA() frees the buffer. */
|
|
XMEMCPY(derCert->buffer, issuer->derCert->buffer,
|
|
issuer->derCert->length);
|
|
AddCA(cm, &derCert, WOLFSSL_USER_CA, 1);
|
|
}
|
|
|
|
certId = (WOLFSSL_OCSP_CERTID*)XMALLOC(sizeof(WOLFSSL_OCSP_CERTID), NULL,
|
|
DYNAMIC_TYPE_OPENSSL);
|
|
certStatus = (CertStatus*)XMALLOC(sizeof(CertStatus), NULL,
|
|
DYNAMIC_TYPE_OPENSSL);
|
|
|
|
if (certId == NULL || certStatus == NULL) {
|
|
if (certId)
|
|
XFREE(certId, NULL, DYNAMIC_TYPE_OPENSSL);
|
|
if (certStatus)
|
|
XFREE(certStatus, NULL, DYNAMIC_TYPE_OPENSSL);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
XMEMSET(certId, 0, sizeof(WOLFSSL_OCSP_CERTID));
|
|
XMEMSET(certStatus, 0, sizeof(CertStatus));
|
|
|
|
certId->status = certStatus;
|
|
|
|
InitDecodedCert(&cert, subject->derCert->buffer,
|
|
subject->derCert->length, NULL);
|
|
if (ParseCertRelative(&cert, CERT_TYPE, VERIFY_OCSP, cm) != 0) {
|
|
XFREE(certId, NULL, DYNAMIC_TYPE_OPENSSL);
|
|
certId = NULL;
|
|
}
|
|
else {
|
|
XMEMCPY(certId->issuerHash, cert.issuerHash, OCSP_DIGEST_SIZE);
|
|
XMEMCPY(certId->issuerKeyHash, cert.issuerKeyHash, OCSP_DIGEST_SIZE);
|
|
XMEMCPY(certId->status->serial, cert.serial, cert.serialSz);
|
|
certId->status->serialSz = cert.serialSz;
|
|
}
|
|
FreeDecodedCert(&cert);
|
|
|
|
wolfSSL_CertManagerFree(cm);
|
|
|
|
return certId;
|
|
}
|
|
|
|
void wolfSSL_OCSP_BASICRESP_free(WOLFSSL_OCSP_BASICRESP* basicResponse)
|
|
{
|
|
wolfSSL_OCSP_RESPONSE_free(basicResponse);
|
|
}
|
|
|
|
/* Signature verified in DecodeBasicOcspResponse.
|
|
* But no store available to verify certificate. */
|
|
int wolfSSL_OCSP_basic_verify(WOLFSSL_OCSP_BASICRESP *bs,
|
|
WOLF_STACK_OF(WOLFSSL_X509) *certs, WOLFSSL_X509_STORE *st, unsigned long flags)
|
|
{
|
|
DecodedCert cert;
|
|
int ret = WOLFSSL_SUCCESS;
|
|
|
|
(void)certs;
|
|
|
|
if (flags & OCSP_NOVERIFY)
|
|
return WOLFSSL_SUCCESS;
|
|
|
|
#ifdef OPENSSL_EXTRA
|
|
if (bs->verifyError != OCSP_VERIFY_ERROR_NONE)
|
|
return WOLFSSL_FAILURE;
|
|
#endif
|
|
|
|
InitDecodedCert(&cert, bs->cert, bs->certSz, NULL);
|
|
if (ParseCertRelative(&cert, CERT_TYPE, VERIFY, st->cm) < 0)
|
|
ret = WOLFSSL_FAILURE;
|
|
FreeDecodedCert(&cert);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void wolfSSL_OCSP_RESPONSE_free(OcspResponse* response)
|
|
{
|
|
if (response == NULL)
|
|
return;
|
|
|
|
if (response->single != NULL) {
|
|
FreeOcspEntry(response->single, NULL);
|
|
XFREE(response->single, NULL, DYNAMIC_TYPE_OCSP_ENTRY);
|
|
}
|
|
|
|
if (response->source != NULL)
|
|
XFREE(response->source, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
|
|
|
XFREE(response, NULL, DYNAMIC_TYPE_OCSP_REQUEST);
|
|
}
|
|
|
|
#ifndef NO_BIO
|
|
OcspResponse* wolfSSL_d2i_OCSP_RESPONSE_bio(WOLFSSL_BIO* bio,
|
|
OcspResponse** response)
|
|
{
|
|
byte* data;
|
|
byte* p;
|
|
int len;
|
|
int dataAlloced = 0;
|
|
OcspResponse* ret = NULL;
|
|
|
|
if (bio == NULL)
|
|
return NULL;
|
|
|
|
if (bio->type == WOLFSSL_BIO_MEMORY) {
|
|
len = wolfSSL_BIO_get_mem_data(bio, &data);
|
|
if (len <= 0 || data == NULL) {
|
|
return NULL;
|
|
}
|
|
}
|
|
#ifndef NO_FILESYSTEM
|
|
else if (bio->type == WOLFSSL_BIO_FILE) {
|
|
long fcur;
|
|
long flen;
|
|
|
|
if (bio->ptr == NULL)
|
|
return NULL;
|
|
|
|
fcur = XFTELL((XFILE)bio->ptr);
|
|
if (fcur < 0)
|
|
return NULL;
|
|
if(XFSEEK((XFILE)bio->ptr, 0, SEEK_END) != 0)
|
|
return NULL;
|
|
flen = XFTELL((XFILE)bio->ptr);
|
|
if (flen < 0)
|
|
return NULL;
|
|
if (XFSEEK((XFILE)bio->ptr, fcur, SEEK_SET) != 0)
|
|
return NULL;
|
|
|
|
/* check calculated length */
|
|
fcur = flen - fcur;
|
|
if (fcur > MAX_WOLFSSL_FILE_SIZE || fcur <= 0)
|
|
return NULL;
|
|
|
|
data = (byte*)XMALLOC(fcur, 0, DYNAMIC_TYPE_TMP_BUFFER);
|
|
if (data == NULL)
|
|
return NULL;
|
|
dataAlloced = 1;
|
|
|
|
len = wolfSSL_BIO_read(bio, (char *)data, (int)flen);
|
|
}
|
|
#endif
|
|
else
|
|
return NULL;
|
|
|
|
if (len > 0) {
|
|
p = data;
|
|
ret = wolfSSL_d2i_OCSP_RESPONSE(response, (const unsigned char **)&p,
|
|
len);
|
|
}
|
|
|
|
if (dataAlloced)
|
|
XFREE(data, 0, DYNAMIC_TYPE_TMP_BUFFER);
|
|
|
|
return ret;
|
|
}
|
|
#endif /* !NO_BIO */
|
|
|
|
OcspResponse* wolfSSL_d2i_OCSP_RESPONSE(OcspResponse** response,
|
|
const unsigned char** data, int len)
|
|
{
|
|
OcspResponse *resp = NULL;
|
|
word32 idx = 0;
|
|
int length = 0;
|
|
|
|
if (data == NULL)
|
|
return NULL;
|
|
|
|
if (response != NULL)
|
|
resp = *response;
|
|
if (resp == NULL) {
|
|
resp = (OcspResponse*)XMALLOC(sizeof(OcspResponse), NULL,
|
|
DYNAMIC_TYPE_OCSP_REQUEST);
|
|
if (resp == NULL)
|
|
return NULL;
|
|
XMEMSET(resp, 0, sizeof(OcspResponse));
|
|
}
|
|
|
|
resp->source = (byte*)XMALLOC(len, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
|
if (resp->source == NULL) {
|
|
XFREE(resp, NULL, DYNAMIC_TYPE_OCSP_REQUEST);
|
|
return NULL;
|
|
}
|
|
resp->single = (OcspEntry*)XMALLOC(sizeof(OcspEntry), NULL,
|
|
DYNAMIC_TYPE_OCSP_ENTRY);
|
|
if (resp->single == NULL) {
|
|
XFREE(resp->source, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
|
XFREE(resp, NULL, DYNAMIC_TYPE_OCSP_REQUEST);
|
|
return NULL;
|
|
}
|
|
XMEMSET(resp->single, 0, sizeof(OcspEntry));
|
|
resp->single->status = (CertStatus*)XMALLOC(sizeof(CertStatus), NULL,
|
|
DYNAMIC_TYPE_OCSP_STATUS);
|
|
if (resp->single->status == NULL) {
|
|
XFREE(resp->source, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
|
XFREE(resp, NULL, DYNAMIC_TYPE_OCSP_REQUEST);
|
|
XFREE(resp->single, NULL, DYNAMIC_TYPE_OCSP_ENTRY);
|
|
return NULL;
|
|
}
|
|
XMEMSET(resp->single->status, 0, sizeof(CertStatus));
|
|
|
|
XMEMCPY(resp->source, *data, len);
|
|
resp->maxIdx = len;
|
|
|
|
if (OcspResponseDecode(resp, NULL, NULL, 1) != 0) {
|
|
wolfSSL_OCSP_RESPONSE_free(resp);
|
|
return NULL;
|
|
}
|
|
|
|
if (GetSequence(*data, &idx, &length, len) >= 0)
|
|
(*data) += idx + length;
|
|
|
|
return resp;
|
|
}
|
|
|
|
int wolfSSL_i2d_OCSP_RESPONSE(OcspResponse* response,
|
|
unsigned char** data)
|
|
{
|
|
if (data == NULL)
|
|
return response->maxIdx;
|
|
|
|
XMEMCPY(*data, response->source, response->maxIdx);
|
|
return response->maxIdx;
|
|
}
|
|
|
|
int wolfSSL_OCSP_response_status(OcspResponse *response)
|
|
{
|
|
return response->responseStatus;
|
|
}
|
|
|
|
const char *wolfSSL_OCSP_response_status_str(long s)
|
|
{
|
|
switch (s) {
|
|
case OCSP_SUCCESSFUL:
|
|
return "successful";
|
|
case OCSP_MALFORMED_REQUEST:
|
|
return "malformedrequest";
|
|
case OCSP_INTERNAL_ERROR:
|
|
return "internalerror";
|
|
case OCSP_TRY_LATER:
|
|
return "trylater";
|
|
case OCSP_SIG_REQUIRED:
|
|
return "sigrequired";
|
|
case OCSP_UNAUTHROIZED:
|
|
return "unauthorized";
|
|
default:
|
|
return "(UNKNOWN)";
|
|
}
|
|
}
|
|
|
|
WOLFSSL_OCSP_BASICRESP* wolfSSL_OCSP_response_get1_basic(OcspResponse* response)
|
|
{
|
|
WOLFSSL_OCSP_BASICRESP* bs;
|
|
|
|
bs = (WOLFSSL_OCSP_BASICRESP*)XMALLOC(sizeof(WOLFSSL_OCSP_BASICRESP), NULL,
|
|
DYNAMIC_TYPE_OCSP_REQUEST);
|
|
if (bs == NULL)
|
|
return NULL;
|
|
|
|
XMEMCPY(bs, response, sizeof(OcspResponse));
|
|
bs->single = (OcspEntry*)XMALLOC(sizeof(OcspEntry), NULL,
|
|
DYNAMIC_TYPE_OCSP_ENTRY);
|
|
bs->source = (byte*)XMALLOC(bs->maxIdx, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
|
if (bs->single == NULL || bs->source == NULL) {
|
|
if (bs->single) XFREE(bs->single, NULL, DYNAMIC_TYPE_OCSP_ENTRY);
|
|
if (bs->source) XFREE(bs->source, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
|
wolfSSL_OCSP_RESPONSE_free(bs);
|
|
bs = NULL;
|
|
}
|
|
else {
|
|
XMEMCPY(bs->single, response->single, sizeof(OcspEntry));
|
|
XMEMCPY(bs->source, response->source, response->maxIdx);
|
|
}
|
|
return bs;
|
|
}
|
|
|
|
OcspRequest* wolfSSL_OCSP_REQUEST_new(void)
|
|
{
|
|
OcspRequest* request;
|
|
|
|
request = (OcspRequest*)XMALLOC(sizeof(OcspRequest), NULL,
|
|
DYNAMIC_TYPE_OPENSSL);
|
|
if (request != NULL)
|
|
XMEMSET(request, 0, sizeof(OcspRequest));
|
|
|
|
return request;
|
|
}
|
|
|
|
void wolfSSL_OCSP_REQUEST_free(OcspRequest* request)
|
|
{
|
|
FreeOcspRequest(request);
|
|
XFREE(request, NULL, DYNAMIC_TYPE_OPENSSL);
|
|
}
|
|
|
|
int wolfSSL_i2d_OCSP_REQUEST(OcspRequest* request, unsigned char** data)
|
|
{
|
|
int size;
|
|
|
|
size = EncodeOcspRequest(request, NULL, 0);
|
|
if (size <= 0 || data == NULL)
|
|
return size;
|
|
|
|
return EncodeOcspRequest(request, *data, size);
|
|
}
|
|
|
|
WOLFSSL_OCSP_ONEREQ* wolfSSL_OCSP_request_add0_id(OcspRequest *req,
|
|
WOLFSSL_OCSP_CERTID *cid)
|
|
{
|
|
if (req == NULL || cid == NULL)
|
|
return NULL;
|
|
|
|
XMEMCPY(req->issuerHash, cid->issuerHash, KEYID_SIZE);
|
|
XMEMCPY(req->issuerKeyHash, cid->issuerKeyHash, KEYID_SIZE);
|
|
XMEMCPY(req->serial, cid->status->serial, cid->status->serialSz);
|
|
req->serialSz = cid->status->serialSz;
|
|
|
|
return req;
|
|
}
|
|
|
|
WOLFSSL_OCSP_CERTID* wolfSSL_OCSP_CERTID_dup(WOLFSSL_OCSP_CERTID* id)
|
|
{
|
|
WOLFSSL_OCSP_CERTID* certId;
|
|
|
|
if (id == NULL)
|
|
return NULL;
|
|
|
|
certId = (WOLFSSL_OCSP_CERTID*)XMALLOC(sizeof(WOLFSSL_OCSP_CERTID),
|
|
NULL, DYNAMIC_TYPE_OPENSSL);
|
|
if (certId) {
|
|
XMEMCPY(certId, id, sizeof(WOLFSSL_OCSP_CERTID));
|
|
}
|
|
return certId;
|
|
}
|
|
#endif
|
|
|
|
#if defined(OPENSSL_ALL) || defined(APACHE_HTTPD)
|
|
#ifndef NO_BIO
|
|
int wolfSSL_i2d_OCSP_REQUEST_bio(WOLFSSL_BIO* out,
|
|
WOLFSSL_OCSP_REQUEST *req)
|
|
{
|
|
int size = -1;
|
|
unsigned char* data = NULL;
|
|
|
|
WOLFSSL_ENTER("wolfSSL_i2d_OCSP_REQUEST_bio");
|
|
if (out == NULL || req == NULL)
|
|
return WOLFSSL_FAILURE;
|
|
|
|
size = wolfSSL_i2d_OCSP_REQUEST(req, NULL);
|
|
if (size > 0) {
|
|
data = (unsigned char*) XMALLOC(size, out->heap,
|
|
DYNAMIC_TYPE_TMP_BUFFER);
|
|
}
|
|
|
|
if (data != NULL) {
|
|
size = wolfSSL_i2d_OCSP_REQUEST(req, &data);
|
|
}
|
|
|
|
if (size <= 0) {
|
|
XFREE(data, out->heap, DYNAMIC_TYPE_TMP_BUFFER);
|
|
return WOLFSSL_FAILURE;
|
|
}
|
|
|
|
if (wolfSSL_BIO_write(out, data, size) == (int)size) {
|
|
XFREE(data, out->heap, DYNAMIC_TYPE_TMP_BUFFER);
|
|
return WOLFSSL_SUCCESS;
|
|
}
|
|
|
|
XFREE(data, out->heap, DYNAMIC_TYPE_TMP_BUFFER);
|
|
return WOLFSSL_FAILURE;
|
|
}
|
|
#endif /* !NO_BIO */
|
|
|
|
int wolfSSL_i2d_OCSP_CERTID(WOLFSSL_OCSP_CERTID* id, unsigned char** data)
|
|
{
|
|
if (id == NULL || data == NULL)
|
|
return WOLFSSL_FAILURE;
|
|
|
|
if (*data != NULL) {
|
|
XMEMCPY(*data, id->rawCertId, id->rawCertIdSize);
|
|
*data = *data + id->rawCertIdSize;
|
|
}
|
|
else {
|
|
*data = (unsigned char*)XMALLOC(id->rawCertIdSize, NULL, DYNAMIC_TYPE_OPENSSL);
|
|
if (*data == NULL) {
|
|
return WOLFSSL_FAILURE;
|
|
}
|
|
XMEMCPY(*data, id->rawCertId, id->rawCertIdSize);
|
|
}
|
|
|
|
return id->rawCertIdSize;
|
|
}
|
|
|
|
const WOLFSSL_OCSP_CERTID* wolfSSL_OCSP_SINGLERESP_get0_id(const WOLFSSL_OCSP_SINGLERESP *single)
|
|
{
|
|
return single;
|
|
}
|
|
|
|
int wolfSSL_OCSP_single_get0_status(WOLFSSL_OCSP_SINGLERESP *single,
|
|
int *reason,
|
|
WOLFSSL_ASN1_TIME **revtime,
|
|
WOLFSSL_ASN1_TIME **thisupd,
|
|
WOLFSSL_ASN1_TIME **nextupd)
|
|
{
|
|
if (single == NULL)
|
|
return WOLFSSL_FAILURE;
|
|
|
|
if (thisupd != NULL)
|
|
*thisupd = &single->status->thisDateParsed;
|
|
if (nextupd != NULL)
|
|
*nextupd = &single->status->nextDateParsed;
|
|
|
|
if (reason != NULL)
|
|
*reason = 0;
|
|
if (revtime != NULL)
|
|
*revtime = NULL;
|
|
|
|
return single->status->status;
|
|
}
|
|
|
|
int wolfSSL_OCSP_resp_count(WOLFSSL_OCSP_BASICRESP *bs)
|
|
{
|
|
WOLFSSL_OCSP_SINGLERESP* single;
|
|
int count = 0;
|
|
|
|
if (bs == NULL)
|
|
return WOLFSSL_FAILURE;
|
|
|
|
single = bs->single;
|
|
while(single != NULL)
|
|
{
|
|
++count;
|
|
single = single->next;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
WOLFSSL_OCSP_SINGLERESP* wolfSSL_OCSP_resp_get0(WOLFSSL_OCSP_BASICRESP *bs, int idx)
|
|
{
|
|
WOLFSSL_OCSP_SINGLERESP* single;
|
|
int currIdx = 0;
|
|
|
|
if (bs == NULL)
|
|
return NULL;
|
|
|
|
single = bs->single;
|
|
while(single != NULL && currIdx != idx)
|
|
{
|
|
single = single->next;
|
|
++currIdx;
|
|
}
|
|
|
|
return single;
|
|
}
|
|
|
|
#endif /* OPENSSL_ALL || APACHE_HTTPD */
|
|
|
|
#ifdef OPENSSL_EXTRA
|
|
#ifndef NO_WOLFSSL_STUB
|
|
int wolfSSL_OCSP_REQUEST_add_ext(OcspRequest* req, WOLFSSL_X509_EXTENSION* ext,
|
|
int idx)
|
|
{
|
|
WOLFSSL_STUB("wolfSSL_OCSP_REQUEST_add_ext");
|
|
(void)req;
|
|
(void)ext;
|
|
(void)idx;
|
|
return WOLFSSL_FATAL_ERROR;
|
|
}
|
|
#endif
|
|
|
|
#ifndef NO_WOLFSSL_STUB
|
|
OcspResponse* wolfSSL_OCSP_response_create(int status,
|
|
WOLFSSL_OCSP_BASICRESP* bs)
|
|
{
|
|
WOLFSSL_STUB("wolfSSL_OCSP_response_create");
|
|
(void)status;
|
|
(void)bs;
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#ifndef NO_WOLFSSL_STUB
|
|
const char* wolfSSL_OCSP_crl_reason_str(long s)
|
|
{
|
|
WOLFSSL_STUB("wolfSSL_OCSP_crl_reason_str");
|
|
(void)s;
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
/* Returns elements of an OCSP_CERTID struct. Currently only supports
|
|
* returning the serial number, and returns an error if user requests
|
|
* any of name, pmd, and/or keyHash.
|
|
* Return 1 on success, 0 on failure */
|
|
int wolfSSL_OCSP_id_get0_info(WOLFSSL_ASN1_STRING **name,
|
|
WOLFSSL_ASN1_OBJECT **pmd, WOLFSSL_ASN1_STRING **keyHash,
|
|
WOLFSSL_ASN1_INTEGER **serial, WOLFSSL_OCSP_CERTID *cid)
|
|
{
|
|
int i = 0;
|
|
WOLFSSL_ASN1_INTEGER* ser;
|
|
|
|
WOLFSSL_ENTER("wolfSSL_OCSP_id_get0_info");
|
|
|
|
if (cid == NULL)
|
|
return 0;
|
|
|
|
/* build up ASN1_INTEGER for serial */
|
|
if (serial != NULL) {
|
|
ser = wolfSSL_ASN1_INTEGER_new();
|
|
if (ser == NULL)
|
|
return 0;
|
|
|
|
if (cid->status->serialSz > (WOLFSSL_ASN1_INTEGER_MAX - 2)) {
|
|
/* allocate data buffer, +2 for type and length */
|
|
ser->data = (unsigned char*)XMALLOC(cid->status->serialSz + 2, NULL,
|
|
DYNAMIC_TYPE_OPENSSL);
|
|
if (ser->data == NULL) {
|
|
wolfSSL_ASN1_INTEGER_free(ser);
|
|
return 0;
|
|
}
|
|
ser->dataMax = cid->status->serialSz + 2;
|
|
ser->isDynamic = 1;
|
|
} else {
|
|
/* Use array instead of dynamic memory */
|
|
ser->data = ser->intData;
|
|
ser->dataMax = WOLFSSL_ASN1_INTEGER_MAX;
|
|
}
|
|
|
|
#ifdef WOLFSSL_QT
|
|
/* Serial number starts at 0 index of ser->data */
|
|
XMEMCPY(&ser->data[i], cid->status->serial, cid->status->serialSz);
|
|
ser->length = cid->status->serialSz;
|
|
#else
|
|
ser->data[i++] = ASN_INTEGER;
|
|
i += SetLength(cid->status->serialSz, ser->data + i);
|
|
XMEMCPY(&ser->data[i], cid->status->serial, cid->status->serialSz);
|
|
#endif
|
|
|
|
cid->status->serialInt = ser;
|
|
*serial = ser;
|
|
}
|
|
|
|
/* Not needed for Apache, return error if user is requesting */
|
|
if (name != NULL || pmd != NULL || keyHash != NULL) {
|
|
if (name != NULL)
|
|
*name = NULL;
|
|
|
|
if (pmd != NULL)
|
|
*pmd = NULL;
|
|
|
|
if (keyHash != NULL)
|
|
*keyHash = NULL;
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
#ifndef NO_WOLFSSL_STUB
|
|
int wolfSSL_OCSP_request_add1_nonce(OcspRequest* req, unsigned char* val,
|
|
int sz)
|
|
{
|
|
WOLFSSL_STUB("wolfSSL_OCSP_request_add1_nonce");
|
|
(void)req;
|
|
(void)val;
|
|
(void)sz;
|
|
return WOLFSSL_FATAL_ERROR;
|
|
}
|
|
#endif
|
|
|
|
/* Returns result of OCSP nonce comparison. Return values:
|
|
* 1 - nonces are both present and equal
|
|
* 2 - both nonces are absent
|
|
* 3 - nonce only present in response
|
|
* -1 - nonce only present in request
|
|
* 0 - both nonces present and equal
|
|
*/
|
|
int wolfSSL_OCSP_check_nonce(OcspRequest* req, WOLFSSL_OCSP_BASICRESP* bs)
|
|
{
|
|
byte* reqNonce = NULL;
|
|
byte* rspNonce = NULL;
|
|
int reqNonceSz = 0;
|
|
int rspNonceSz = 0;
|
|
|
|
WOLFSSL_ENTER("wolfSSL_OCSP_check_nonce");
|
|
|
|
if (req != NULL) {
|
|
reqNonce = req->nonce;
|
|
reqNonceSz = req->nonceSz;
|
|
}
|
|
|
|
if (bs != NULL) {
|
|
rspNonce = bs->nonce;
|
|
rspNonceSz = bs->nonceSz;
|
|
}
|
|
|
|
/* nonce absent in both req and rsp */
|
|
if (reqNonce == NULL && rspNonce == NULL)
|
|
return 2;
|
|
|
|
/* nonce present in rsp only */
|
|
if (reqNonce == NULL && rspNonce != NULL)
|
|
return 3;
|
|
|
|
/* nonce present in req only */
|
|
if (reqNonce != NULL && rspNonce == NULL)
|
|
return -1;
|
|
|
|
/* nonces are present and equal, return 1. Extra NULL check for fixing
|
|
scan-build warning. */
|
|
if (reqNonceSz == rspNonceSz && reqNonce && rspNonce) {
|
|
if (XMEMCMP(reqNonce, rspNonce, reqNonceSz) == 0)
|
|
return 1;
|
|
}
|
|
|
|
/* nonces are present but not equal */
|
|
return 0;
|
|
}
|
|
#endif /* OPENSSL_EXTRA */
|
|
|
|
#else /* HAVE_OCSP */
|
|
|
|
|
|
#ifdef _MSC_VER
|
|
/* 4206 warning for blank file */
|
|
#pragma warning(disable: 4206)
|
|
#endif
|
|
|
|
|
|
#endif /* HAVE_OCSP */
|
|
#endif /* WOLFCRYPT_ONLY */
|