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369 lines
13 KiB
C
369 lines
13 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the PKIX-C library.
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*
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* The Initial Developer of the Original Code is
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* Sun Microsystems, Inc.
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* Portions created by the Initial Developer are
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* Copyright 2004-2007 Sun Microsystems, Inc. All Rights Reserved.
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*
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* Contributor(s):
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* Sun Microsystems, Inc.
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* Red Hat, Inc.
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* pkix_ocspchecker.c
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*
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* OcspChecker Object Functions
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*
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*/
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#include "pkix_ocspchecker.h"
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#include "pkix_pl_ocspcertid.h"
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#include "pkix_error.h"
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/* --Private-Data-and-Types--------------------------------------- */
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typedef struct pkix_OcspCheckerStruct {
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/* RevocationMethod is the super class of OcspChecker. */
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pkix_RevocationMethod method;
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PKIX_PL_VerifyCallback certVerifyFcn;
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} pkix_OcspChecker;
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/* --Private-Functions-------------------------------------------- */
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/*
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* FUNCTION: pkix_OcspChecker_Destroy
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* (see comments for PKIX_PL_DestructorCallback in pkix_pl_system.h)
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*/
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static PKIX_Error *
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pkix_OcspChecker_Destroy(
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PKIX_PL_Object *object,
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void *plContext)
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{
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return NULL;
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}
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/*
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* FUNCTION: pkix_OcspChecker_RegisterSelf
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* DESCRIPTION:
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* Registers PKIX_OCSPCHECKER_TYPE and its related functions with
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* systemClasses[]
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* THREAD SAFETY:
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* Not Thread Safe - for performance and complexity reasons
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*
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* Since this function is only called by PKIX_PL_Initialize, which should
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* only be called once, it is acceptable that this function is not
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* thread-safe.
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*/
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PKIX_Error *
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pkix_OcspChecker_RegisterSelf(void *plContext)
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{
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extern pkix_ClassTable_Entry systemClasses[PKIX_NUMTYPES];
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pkix_ClassTable_Entry* entry = &systemClasses[PKIX_OCSPCHECKER_TYPE];
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PKIX_ENTER(OCSPCHECKER, "pkix_OcspChecker_RegisterSelf");
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entry->description = "OcspChecker";
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entry->typeObjectSize = sizeof(pkix_OcspChecker);
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entry->destructor = pkix_OcspChecker_Destroy;
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PKIX_RETURN(OCSPCHECKER);
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}
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/*
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* FUNCTION: pkix_OcspChecker_Create
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*/
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PKIX_Error *
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pkix_OcspChecker_Create(PKIX_RevocationMethodType methodType,
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PKIX_UInt32 flags,
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PKIX_UInt32 priority,
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pkix_LocalRevocationCheckFn localRevChecker,
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pkix_ExternalRevocationCheckFn externalRevChecker,
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PKIX_PL_VerifyCallback verifyFn,
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pkix_RevocationMethod **pChecker,
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void *plContext)
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{
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pkix_OcspChecker *method = NULL;
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PKIX_ENTER(OCSPCHECKER, "pkix_OcspChecker_Create");
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PKIX_NULLCHECK_ONE(pChecker);
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PKIX_CHECK(PKIX_PL_Object_Alloc
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(PKIX_OCSPCHECKER_TYPE,
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sizeof (pkix_OcspChecker),
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(PKIX_PL_Object **)&method,
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plContext),
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PKIX_COULDNOTCREATECERTCHAINCHECKEROBJECT);
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pkixErrorResult = pkix_RevocationMethod_Init(
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(pkix_RevocationMethod*)method, methodType, flags, priority,
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localRevChecker, externalRevChecker, plContext);
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if (pkixErrorResult) {
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goto cleanup;
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}
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method->certVerifyFcn = (PKIX_PL_VerifyCallback)verifyFn;
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*pChecker = (pkix_RevocationMethod*)method;
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method = NULL;
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cleanup:
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PKIX_DECREF(method);
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PKIX_RETURN(OCSPCHECKER);
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}
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/* --Public-Functions--------------------------------------------- */
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/*
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* FUNCTION: pkix_OcspChecker_Check (see comments in pkix_checker.h)
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*/
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/*
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* The OCSPChecker is created in an idle state, and remains in this state until
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* either (a) the default Responder has been set and enabled, and a Check
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* request is received with no responder specified, or (b) a Check request is
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* received with a specified responder. A request message is constructed and
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* given to the HttpClient. If non-blocking I/O is used the client may return
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* with WOULDBLOCK, in which case the OCSPChecker returns the WOULDBLOCK
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* condition to its caller in turn. On a subsequent call the I/O is resumed.
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* When a response is received it is decoded and the results provided to the
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* caller.
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*
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*/
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PKIX_Error *
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pkix_OcspChecker_CheckLocal(
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PKIX_PL_Cert *cert,
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PKIX_PL_Cert *issuer,
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PKIX_PL_Date *date,
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pkix_RevocationMethod *checkerObject,
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PKIX_ProcessingParams *procParams,
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PKIX_UInt32 methodFlags,
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PKIX_Boolean chainVerificationState,
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PKIX_RevocationStatus *pRevStatus,
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PKIX_UInt32 *pReasonCode,
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void *plContext)
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{
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PKIX_PL_OcspCertID *cid = NULL;
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PKIX_Boolean hasFreshStatus = PKIX_FALSE;
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PKIX_Boolean statusIsGood = PKIX_FALSE;
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SECErrorCodes resultCode = SEC_ERROR_REVOKED_CERTIFICATE_OCSP;
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PKIX_RevocationStatus revStatus = PKIX_RevStatus_NoInfo;
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PKIX_ENTER(OCSPCHECKER, "pkix_OcspChecker_CheckLocal");
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PKIX_CHECK(
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PKIX_PL_OcspCertID_Create(cert, NULL, &cid,
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plContext),
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PKIX_OCSPCERTIDCREATEFAILED);
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if (!cid) {
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goto cleanup;
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}
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PKIX_CHECK(
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PKIX_PL_OcspCertID_GetFreshCacheStatus(cid, NULL,
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&hasFreshStatus,
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&statusIsGood,
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&resultCode,
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plContext),
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PKIX_OCSPCERTIDGETFRESHCACHESTATUSFAILED);
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if (hasFreshStatus) {
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if (statusIsGood) {
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revStatus = PKIX_RevStatus_Success;
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resultCode = 0;
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} else {
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revStatus = PKIX_RevStatus_Revoked;
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}
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}
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cleanup:
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*pRevStatus = revStatus;
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/* ocsp carries only tree statuses: good, bad, and unknown.
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* revStatus is used to pass them. reasonCode is always set
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* to be unknown. */
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*pReasonCode = crlEntryReasonUnspecified;
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PKIX_DECREF(cid);
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PKIX_RETURN(OCSPCHECKER);
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}
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/*
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* The OCSPChecker is created in an idle state, and remains in this state until
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* either (a) the default Responder has been set and enabled, and a Check
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* request is received with no responder specified, or (b) a Check request is
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* received with a specified responder. A request message is constructed and
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* given to the HttpClient. If non-blocking I/O is used the client may return
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* with WOULDBLOCK, in which case the OCSPChecker returns the WOULDBLOCK
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* condition to its caller in turn. On a subsequent call the I/O is resumed.
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* When a response is received it is decoded and the results provided to the
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* caller.
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*
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*/
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PKIX_Error *
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pkix_OcspChecker_CheckExternal(
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PKIX_PL_Cert *cert,
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PKIX_PL_Cert *issuer,
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PKIX_PL_Date *date,
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pkix_RevocationMethod *checkerObject,
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PKIX_ProcessingParams *procParams,
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PKIX_UInt32 methodFlags,
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PKIX_RevocationStatus *pRevStatus,
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PKIX_UInt32 *pReasonCode,
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void **pNBIOContext,
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void *plContext)
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{
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SECErrorCodes resultCode = SEC_ERROR_REVOKED_CERTIFICATE_OCSP;
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PKIX_Boolean uriFound = PKIX_FALSE;
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PKIX_Boolean passed = PKIX_TRUE;
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pkix_OcspChecker *checker = NULL;
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PKIX_PL_OcspCertID *cid = NULL;
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PKIX_PL_OcspRequest *request = NULL;
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PKIX_PL_OcspResponse *response = NULL;
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PKIX_PL_Date *validity = NULL;
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PKIX_RevocationStatus revStatus = PKIX_RevStatus_NoInfo;
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void *nbioContext = NULL;
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PKIX_ENTER(OCSPCHECKER, "pkix_OcspChecker_Check");
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PKIX_CHECK(
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pkix_CheckType((PKIX_PL_Object*)checkerObject,
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PKIX_OCSPCHECKER_TYPE, plContext),
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PKIX_OBJECTNOTOCSPCHECKER);
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checker = (pkix_OcspChecker *)checkerObject;
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PKIX_CHECK(
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PKIX_PL_OcspCertID_Create(cert, NULL, &cid,
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plContext),
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PKIX_OCSPCERTIDCREATEFAILED);
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/* create request */
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PKIX_CHECK(
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pkix_pl_OcspRequest_Create(cert, cid, validity, NULL,
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methodFlags, &uriFound, &request,
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plContext),
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PKIX_OCSPREQUESTCREATEFAILED);
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if (uriFound == PKIX_FALSE) {
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/* no caching for certs lacking URI */
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resultCode = 0;
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if (methodFlags & PKIX_REV_M_REQUIRE_INFO_ON_MISSING_SOURCE) {
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revStatus = PKIX_RevStatus_Revoked;
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}
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goto cleanup;
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}
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/* send request and create a response object */
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PKIX_CHECK(
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pkix_pl_OcspResponse_Create(request, NULL,
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checker->certVerifyFcn,
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&nbioContext,
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&response,
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plContext),
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PKIX_OCSPRESPONSECREATEFAILED);
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if (nbioContext != 0) {
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*pNBIOContext = nbioContext;
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goto cleanup;
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}
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PKIX_CHECK(
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pkix_pl_OcspResponse_Decode(response, &passed,
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&resultCode, plContext),
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PKIX_OCSPRESPONSEDECODEFAILED);
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if (passed == PKIX_FALSE) {
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goto cleanup;
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}
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PKIX_CHECK(
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pkix_pl_OcspResponse_GetStatus(response, &passed,
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&resultCode, plContext),
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PKIX_OCSPRESPONSEGETSTATUSRETURNEDANERROR);
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if (passed == PKIX_FALSE) {
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goto cleanup;
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}
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PKIX_CHECK(
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pkix_pl_OcspResponse_VerifySignature(response, cert,
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procParams, &passed,
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&nbioContext, plContext),
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PKIX_OCSPRESPONSEVERIFYSIGNATUREFAILED);
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if (nbioContext != 0) {
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*pNBIOContext = nbioContext;
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goto cleanup;
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}
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if (passed == PKIX_FALSE) {
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goto cleanup;
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}
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PKIX_CHECK(
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pkix_pl_OcspResponse_GetStatusForCert(cid, response,
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&passed, &resultCode,
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plContext),
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PKIX_OCSPRESPONSEGETSTATUSFORCERTFAILED);
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if (passed == PKIX_FALSE) {
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revStatus = PKIX_RevStatus_Revoked;
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} else {
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revStatus = PKIX_RevStatus_Success;
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}
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cleanup:
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if (revStatus == PKIX_RevStatus_NoInfo && uriFound &&
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methodFlags & PKIX_REV_M_FAIL_ON_MISSING_FRESH_INFO) {
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revStatus = PKIX_RevStatus_Revoked;
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}
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*pRevStatus = revStatus;
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/* ocsp carries only tree statuses: good, bad, and unknown.
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* revStatus is used to pass them. reasonCode is always set
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* to be unknown. */
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*pReasonCode = crlEntryReasonUnspecified;
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if (!passed && cid && cid->certID) {
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/* We still own the certID object, which means that
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* it did not get consumed to create a cache entry.
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* Let's make sure there is one.
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*/
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PKIX_Error *err;
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err = PKIX_PL_OcspCertID_RememberOCSPProcessingFailure(
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cid, plContext);
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if (err) {
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PKIX_PL_Object_DecRef((PKIX_PL_Object*)err, plContext);
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}
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}
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PKIX_DECREF(cid);
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PKIX_DECREF(request);
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PKIX_DECREF(response);
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PKIX_RETURN(OCSPCHECKER);
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}
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