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416 lines
11 KiB
C
416 lines
11 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 Netscape security libraries.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1994-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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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#ifdef DEBUG
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static const char CVS_ID[] = "@(#) $RCSfile: find.c,v $ $Revision: 1.9 $ $Date: 2009/02/09 07:55:52 $";
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#endif /* DEBUG */
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/*
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* find.c
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*
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* This file implements the nssCKFWFindObjects type and methods.
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*/
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#ifndef CK_H
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#include "ck.h"
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#endif /* CK_H */
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/*
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* NSSCKFWFindObjects
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*
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* -- create/destroy --
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* nssCKFWFindObjects_Create
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* nssCKFWFindObjects_Destroy
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*
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* -- public accessors --
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* NSSCKFWFindObjects_GetMDFindObjects
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*
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* -- implement public accessors --
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* nssCKFWFindObjects_GetMDFindObjects
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*
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* -- private accessors --
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*
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* -- module fronts --
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* nssCKFWFindObjects_Next
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*/
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struct NSSCKFWFindObjectsStr {
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NSSCKFWMutex *mutex; /* merely to serialise the MDObject calls */
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NSSCKMDFindObjects *mdfo1;
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NSSCKMDFindObjects *mdfo2;
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NSSCKFWSession *fwSession;
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NSSCKMDSession *mdSession;
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NSSCKFWToken *fwToken;
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NSSCKMDToken *mdToken;
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NSSCKFWInstance *fwInstance;
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NSSCKMDInstance *mdInstance;
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NSSCKMDFindObjects *mdFindObjects; /* varies */
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};
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#ifdef DEBUG
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/*
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* But first, the pointer-tracking stuff.
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*
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* NOTE: the pointer-tracking support in NSS/base currently relies
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* upon NSPR's CallOnce support. That, however, relies upon NSPR's
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* locking, which is tied into the runtime. We need a pointer-tracker
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* implementation that uses the locks supplied through C_Initialize.
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* That support, however, can be filled in later. So for now, I'll
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* just do these routines as no-ops.
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*/
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static CK_RV
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findObjects_add_pointer
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(
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const NSSCKFWFindObjects *fwFindObjects
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)
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{
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return CKR_OK;
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}
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static CK_RV
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findObjects_remove_pointer
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(
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const NSSCKFWFindObjects *fwFindObjects
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)
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{
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return CKR_OK;
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}
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NSS_IMPLEMENT CK_RV
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nssCKFWFindObjects_verifyPointer
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(
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const NSSCKFWFindObjects *fwFindObjects
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)
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{
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return CKR_OK;
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}
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#endif /* DEBUG */
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/*
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* nssCKFWFindObjects_Create
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*
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*/
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NSS_EXTERN NSSCKFWFindObjects *
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nssCKFWFindObjects_Create
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(
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NSSCKFWSession *fwSession,
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NSSCKFWToken *fwToken,
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NSSCKFWInstance *fwInstance,
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NSSCKMDFindObjects *mdFindObjects1,
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NSSCKMDFindObjects *mdFindObjects2,
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CK_RV *pError
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)
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{
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NSSCKFWFindObjects *fwFindObjects = NULL;
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NSSCKMDSession *mdSession;
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NSSCKMDToken *mdToken;
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NSSCKMDInstance *mdInstance;
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mdSession = nssCKFWSession_GetMDSession(fwSession);
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mdToken = nssCKFWToken_GetMDToken(fwToken);
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mdInstance = nssCKFWInstance_GetMDInstance(fwInstance);
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fwFindObjects = nss_ZNEW(NULL, NSSCKFWFindObjects);
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if (!fwFindObjects) {
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*pError = CKR_HOST_MEMORY;
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goto loser;
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}
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fwFindObjects->mdfo1 = mdFindObjects1;
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fwFindObjects->mdfo2 = mdFindObjects2;
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fwFindObjects->fwSession = fwSession;
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fwFindObjects->mdSession = mdSession;
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fwFindObjects->fwToken = fwToken;
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fwFindObjects->mdToken = mdToken;
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fwFindObjects->fwInstance = fwInstance;
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fwFindObjects->mdInstance = mdInstance;
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fwFindObjects->mutex = nssCKFWInstance_CreateMutex(fwInstance, NULL, pError);
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if (!fwFindObjects->mutex) {
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goto loser;
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}
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#ifdef DEBUG
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*pError = findObjects_add_pointer(fwFindObjects);
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if( CKR_OK != *pError ) {
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goto loser;
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}
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#endif /* DEBUG */
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return fwFindObjects;
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loser:
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if( fwFindObjects ) {
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if( NULL != mdFindObjects1 ) {
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if( NULL != mdFindObjects1->Final ) {
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fwFindObjects->mdFindObjects = mdFindObjects1;
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mdFindObjects1->Final(mdFindObjects1, fwFindObjects, mdSession,
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fwSession, mdToken, fwToken, mdInstance, fwInstance);
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}
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}
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if( NULL != mdFindObjects2 ) {
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if( NULL != mdFindObjects2->Final ) {
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fwFindObjects->mdFindObjects = mdFindObjects2;
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mdFindObjects2->Final(mdFindObjects2, fwFindObjects, mdSession,
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fwSession, mdToken, fwToken, mdInstance, fwInstance);
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}
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}
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nss_ZFreeIf(fwFindObjects);
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}
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if( CKR_OK == *pError ) {
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*pError = CKR_GENERAL_ERROR;
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}
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return (NSSCKFWFindObjects *)NULL;
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}
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/*
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* nssCKFWFindObjects_Destroy
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*
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*/
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NSS_EXTERN void
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nssCKFWFindObjects_Destroy
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(
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NSSCKFWFindObjects *fwFindObjects
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)
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{
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#ifdef NSSDEBUG
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if( CKR_OK != nssCKFWFindObjects_verifyPointer(fwFindObjects) ) {
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return;
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}
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#endif /* NSSDEBUG */
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(void)nssCKFWMutex_Destroy(fwFindObjects->mutex);
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if (fwFindObjects->mdfo1) {
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if (fwFindObjects->mdfo1->Final) {
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fwFindObjects->mdFindObjects = fwFindObjects->mdfo1;
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fwFindObjects->mdfo1->Final(fwFindObjects->mdfo1, fwFindObjects,
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fwFindObjects->mdSession, fwFindObjects->fwSession,
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fwFindObjects->mdToken, fwFindObjects->fwToken,
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fwFindObjects->mdInstance, fwFindObjects->fwInstance);
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}
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}
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if (fwFindObjects->mdfo2) {
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if (fwFindObjects->mdfo2->Final) {
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fwFindObjects->mdFindObjects = fwFindObjects->mdfo2;
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fwFindObjects->mdfo2->Final(fwFindObjects->mdfo2, fwFindObjects,
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fwFindObjects->mdSession, fwFindObjects->fwSession,
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fwFindObjects->mdToken, fwFindObjects->fwToken,
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fwFindObjects->mdInstance, fwFindObjects->fwInstance);
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}
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}
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nss_ZFreeIf(fwFindObjects);
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#ifdef DEBUG
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(void)findObjects_remove_pointer(fwFindObjects);
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#endif /* DEBUG */
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return;
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}
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/*
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* nssCKFWFindObjects_GetMDFindObjects
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*
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*/
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NSS_EXTERN NSSCKMDFindObjects *
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nssCKFWFindObjects_GetMDFindObjects
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(
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NSSCKFWFindObjects *fwFindObjects
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)
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{
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#ifdef NSSDEBUG
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if( CKR_OK != nssCKFWFindObjects_verifyPointer(fwFindObjects) ) {
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return (NSSCKMDFindObjects *)NULL;
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}
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#endif /* NSSDEBUG */
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return fwFindObjects->mdFindObjects;
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}
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/*
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* nssCKFWFindObjects_Next
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*
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*/
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NSS_EXTERN NSSCKFWObject *
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nssCKFWFindObjects_Next
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(
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NSSCKFWFindObjects *fwFindObjects,
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NSSArena *arenaOpt,
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CK_RV *pError
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)
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{
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NSSCKMDObject *mdObject;
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NSSCKFWObject *fwObject = (NSSCKFWObject *)NULL;
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NSSArena *objArena;
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#ifdef NSSDEBUG
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if (!pError) {
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return (NSSCKFWObject *)NULL;
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}
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*pError = nssCKFWFindObjects_verifyPointer(fwFindObjects);
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if( CKR_OK != *pError ) {
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return (NSSCKFWObject *)NULL;
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}
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#endif /* NSSDEBUG */
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*pError = nssCKFWMutex_Lock(fwFindObjects->mutex);
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if( CKR_OK != *pError ) {
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return (NSSCKFWObject *)NULL;
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}
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if (fwFindObjects->mdfo1) {
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if (fwFindObjects->mdfo1->Next) {
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fwFindObjects->mdFindObjects = fwFindObjects->mdfo1;
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mdObject = fwFindObjects->mdfo1->Next(fwFindObjects->mdfo1,
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fwFindObjects, fwFindObjects->mdSession, fwFindObjects->fwSession,
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fwFindObjects->mdToken, fwFindObjects->fwToken,
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fwFindObjects->mdInstance, fwFindObjects->fwInstance,
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arenaOpt, pError);
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if (!mdObject) {
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if( CKR_OK != *pError ) {
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goto done;
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}
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/* All done. */
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fwFindObjects->mdfo1->Final(fwFindObjects->mdfo1, fwFindObjects,
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fwFindObjects->mdSession, fwFindObjects->fwSession,
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fwFindObjects->mdToken, fwFindObjects->fwToken,
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fwFindObjects->mdInstance, fwFindObjects->fwInstance);
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fwFindObjects->mdfo1 = (NSSCKMDFindObjects *)NULL;
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} else {
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goto wrap;
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}
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}
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}
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if (fwFindObjects->mdfo2) {
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if (fwFindObjects->mdfo2->Next) {
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fwFindObjects->mdFindObjects = fwFindObjects->mdfo2;
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mdObject = fwFindObjects->mdfo2->Next(fwFindObjects->mdfo2,
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fwFindObjects, fwFindObjects->mdSession, fwFindObjects->fwSession,
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fwFindObjects->mdToken, fwFindObjects->fwToken,
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fwFindObjects->mdInstance, fwFindObjects->fwInstance,
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arenaOpt, pError);
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if (!mdObject) {
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if( CKR_OK != *pError ) {
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goto done;
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}
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/* All done. */
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fwFindObjects->mdfo2->Final(fwFindObjects->mdfo2, fwFindObjects,
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fwFindObjects->mdSession, fwFindObjects->fwSession,
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fwFindObjects->mdToken, fwFindObjects->fwToken,
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fwFindObjects->mdInstance, fwFindObjects->fwInstance);
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fwFindObjects->mdfo2 = (NSSCKMDFindObjects *)NULL;
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} else {
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goto wrap;
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}
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}
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}
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/* No more objects */
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*pError = CKR_OK;
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goto done;
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wrap:
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/*
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* This seems is less than ideal-- we should determine if it's a token
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* object or a session object, and use the appropriate arena.
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* But that duplicates logic in nssCKFWObject_IsTokenObject.
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* Also we should lookup the real session the object was created on
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* if the object was a session object... however this code is actually
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* correct because nssCKFWObject_Create will return a cached version of
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* the object from it's hash. This is necessary because 1) we don't want
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* to create an arena style leak (where our arena grows with every search),
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* and 2) we want the same object to always have the same ID. This means
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* the only case the nssCKFWObject_Create() will need the objArena and the
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* Session is in the case of token objects (session objects should already
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* exist in the cache from their initial creation). So this code is correct,
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* but it depends on nssCKFWObject_Create caching all objects.
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*/
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objArena = nssCKFWToken_GetArena(fwFindObjects->fwToken, pError);
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if (!objArena) {
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if( CKR_OK == *pError ) {
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*pError = CKR_HOST_MEMORY;
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}
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goto done;
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}
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fwObject = nssCKFWObject_Create(objArena, mdObject,
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NULL, fwFindObjects->fwToken,
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fwFindObjects->fwInstance, pError);
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if (!fwObject) {
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if( CKR_OK == *pError ) {
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*pError = CKR_GENERAL_ERROR;
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}
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}
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done:
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(void)nssCKFWMutex_Unlock(fwFindObjects->mutex);
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return fwObject;
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}
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/*
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* NSSCKFWFindObjects_GetMDFindObjects
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*
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*/
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NSS_EXTERN NSSCKMDFindObjects *
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NSSCKFWFindObjects_GetMDFindObjects
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(
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NSSCKFWFindObjects *fwFindObjects
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)
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{
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#ifdef DEBUG
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if( CKR_OK != nssCKFWFindObjects_verifyPointer(fwFindObjects) ) {
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return (NSSCKMDFindObjects *)NULL;
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}
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#endif /* DEBUG */
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return nssCKFWFindObjects_GetMDFindObjects(fwFindObjects);
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}
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