find.c
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:11k
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
- #ifdef DEBUG
- static const char CVS_ID[] = "@(#) $RCSfile: find.c,v $ $Revision: 1.1 $ $Date: 2000/03/31 19:43:14 $ $Name: NSS_3_1_1_RTM $";
- #endif /* DEBUG */
- /*
- * find.c
- *
- * This file implements the nssCKFWFindObjects type and methods.
- */
- #ifndef CK_H
- #include "ck.h"
- #endif /* CK_H */
- /*
- * NSSCKFWFindObjects
- *
- * -- create/destroy --
- * nssCKFWFindObjects_Create
- * nssCKFWFindObjects_Destroy
- *
- * -- public accessors --
- * NSSCKFWFindObjects_GetMDFindObjects
- *
- * -- implement public accessors --
- * nssCKFWFindObjects_GetMDFindObjects
- *
- * -- private accessors --
- *
- * -- module fronts --
- * nssCKFWFindObjects_Next
- */
- struct NSSCKFWFindObjectsStr {
- NSSCKFWMutex *mutex; /* merely to serialise the MDObject calls */
- NSSCKMDFindObjects *mdfo1;
- NSSCKMDFindObjects *mdfo2;
- NSSCKFWSession *fwSession;
- NSSCKMDSession *mdSession;
- NSSCKFWToken *fwToken;
- NSSCKMDToken *mdToken;
- NSSCKFWInstance *fwInstance;
- NSSCKMDInstance *mdInstance;
- NSSCKMDFindObjects *mdFindObjects; /* varies */
- };
- #ifdef DEBUG
- /*
- * But first, the pointer-tracking stuff.
- *
- * NOTE: the pointer-tracking support in NSS/base currently relies
- * upon NSPR's CallOnce support. That, however, relies upon NSPR's
- * locking, which is tied into the runtime. We need a pointer-tracker
- * implementation that uses the locks supplied through C_Initialize.
- * That support, however, can be filled in later. So for now, I'll
- * just do these routines as no-ops.
- */
- static CK_RV
- findObjects_add_pointer
- (
- const NSSCKFWFindObjects *fwFindObjects
- )
- {
- return CKR_OK;
- }
- static CK_RV
- findObjects_remove_pointer
- (
- const NSSCKFWFindObjects *fwFindObjects
- )
- {
- return CKR_OK;
- }
- NSS_IMPLEMENT CK_RV
- nssCKFWFindObjects_verifyPointer
- (
- const NSSCKFWFindObjects *fwFindObjects
- )
- {
- return CKR_OK;
- }
- #endif /* DEBUG */
- /*
- * nssCKFWFindObjects_Create
- *
- */
- NSS_EXTERN NSSCKFWFindObjects *
- nssCKFWFindObjects_Create
- (
- NSSCKFWSession *fwSession,
- NSSCKFWToken *fwToken,
- NSSCKFWInstance *fwInstance,
- NSSCKMDFindObjects *mdFindObjects1,
- NSSCKMDFindObjects *mdFindObjects2,
- CK_RV *pError
- )
- {
- NSSCKFWFindObjects *fwFindObjects;
- NSSArena *arena;
- NSSCKMDSession *mdSession;
- NSSCKMDToken *mdToken;
- NSSCKMDInstance *mdInstance;
- mdSession = nssCKFWSession_GetMDSession(fwSession);
- mdToken = nssCKFWToken_GetMDToken(fwToken);
- mdInstance = nssCKFWInstance_GetMDInstance(fwInstance);
- arena = nssCKFWSession_GetArena(fwSession, pError);
- if( (NSSArena *)NULL == arena ) {
- goto loser;
- }
- fwFindObjects = nss_ZNEW(arena, NSSCKFWFindObjects);
- if( (NSSCKFWFindObjects *)NULL == fwFindObjects ) {
- *pError = CKR_HOST_MEMORY;
- goto loser;
- }
- fwFindObjects->mdfo1 = mdFindObjects1;
- fwFindObjects->mdfo2 = mdFindObjects2;
- fwFindObjects->fwSession = fwSession;
- fwFindObjects->mdSession = mdSession;
- fwFindObjects->fwToken = fwToken;
- fwFindObjects->mdToken = mdToken;
- fwFindObjects->fwInstance = fwInstance;
- fwFindObjects->mdInstance = mdInstance;
- fwFindObjects->mutex = nssCKFWInstance_CreateMutex(fwInstance, arena, pError);
- if( (NSSCKFWMutex *)NULL == fwFindObjects->mutex ) {
- goto loser;
- }
- #ifdef DEBUG
- *pError = findObjects_add_pointer(fwFindObjects);
- if( CKR_OK != *pError ) {
- goto loser;
- }
- #endif /* DEBUG */
- return fwFindObjects;
- loser:
- nss_ZFreeIf(fwFindObjects);
- if( (NSSCKMDFindObjects *)NULL != mdFindObjects1 ) {
- if( (void *)NULL != (void *)mdFindObjects1->Final ) {
- fwFindObjects->mdFindObjects = mdFindObjects1;
- mdFindObjects1->Final(mdFindObjects1, fwFindObjects, mdSession,
- fwSession, mdToken, fwToken, mdInstance, fwInstance);
- }
- }
- if( (NSSCKMDFindObjects *)NULL != mdFindObjects2 ) {
- if( (void *)NULL != (void *)mdFindObjects2->Final ) {
- fwFindObjects->mdFindObjects = mdFindObjects2;
- mdFindObjects2->Final(mdFindObjects2, fwFindObjects, mdSession,
- fwSession, mdToken, fwToken, mdInstance, fwInstance);
- }
- }
- if( CKR_OK == *pError ) {
- *pError = CKR_GENERAL_ERROR;
- }
- return (NSSCKFWFindObjects *)NULL;
- }
- /*
- * nssCKFWFindObjects_Destroy
- *
- */
- NSS_EXTERN void
- nssCKFWFindObjects_Destroy
- (
- NSSCKFWFindObjects *fwFindObjects
- )
- {
- #ifdef NSSDEBUG
- if( CKR_OK != nssCKFWFindObjects_verifyPointer(fwFindObjects) ) {
- return;
- }
- #endif /* NSSDEBUG */
- (void)nssCKFWMutex_Destroy(fwFindObjects->mutex);
- if( (NSSCKMDFindObjects *)NULL != fwFindObjects->mdfo1 ) {
- if( (void *)NULL != (void *)fwFindObjects->mdfo1->Final ) {
- fwFindObjects->mdFindObjects = fwFindObjects->mdfo1;
- fwFindObjects->mdfo1->Final(fwFindObjects->mdfo1, fwFindObjects,
- fwFindObjects->mdSession, fwFindObjects->fwSession,
- fwFindObjects->mdToken, fwFindObjects->fwToken,
- fwFindObjects->mdInstance, fwFindObjects->fwInstance);
- }
- }
- if( (NSSCKMDFindObjects *)NULL != fwFindObjects->mdfo2 ) {
- if( (void *)NULL != (void *)fwFindObjects->mdfo2->Final ) {
- fwFindObjects->mdFindObjects = fwFindObjects->mdfo2;
- fwFindObjects->mdfo2->Final(fwFindObjects->mdfo2, fwFindObjects,
- fwFindObjects->mdSession, fwFindObjects->fwSession,
- fwFindObjects->mdToken, fwFindObjects->fwToken,
- fwFindObjects->mdInstance, fwFindObjects->fwInstance);
- }
- }
- nss_ZFreeIf(fwFindObjects);
- #ifdef DEBUG
- (void)findObjects_remove_pointer(fwFindObjects);
- #endif /* DEBUG */
- return;
- }
- /*
- * nssCKFWFindObjects_GetMDFindObjects
- *
- */
- NSS_EXTERN NSSCKMDFindObjects *
- nssCKFWFindObjects_GetMDFindObjects
- (
- NSSCKFWFindObjects *fwFindObjects
- )
- {
- #ifdef NSSDEBUG
- if( CKR_OK != nssCKFWFindObjects_verifyPointer(fwFindObjects) ) {
- return (NSSCKMDFindObjects *)NULL;
- }
- #endif /* NSSDEBUG */
- return fwFindObjects->mdFindObjects;
- }
- /*
- * nssCKFWFindObjects_Next
- *
- */
- NSS_EXTERN NSSCKFWObject *
- nssCKFWFindObjects_Next
- (
- NSSCKFWFindObjects *fwFindObjects,
- NSSArena *arenaOpt,
- CK_RV *pError
- )
- {
- NSSCKMDObject *mdObject;
- NSSCKFWObject *fwObject = (NSSCKFWObject *)NULL;
- NSSArena *objArena;
- #ifdef NSSDEBUG
- if( (CK_RV *)NULL == pError ) {
- return (NSSCKFWObject *)NULL;
- }
- *pError = nssCKFWFindObjects_verifyPointer(fwFindObjects);
- if( CKR_OK != *pError ) {
- return (NSSCKFWObject *)NULL;
- }
- #endif /* NSSDEBUG */
- *pError = nssCKFWMutex_Lock(fwFindObjects->mutex);
- if( CKR_OK != *pError ) {
- return (NSSCKFWObject *)NULL;
- }
- if( (NSSCKMDFindObjects *)NULL != fwFindObjects->mdfo1 ) {
- if( (void *)NULL != (void *)fwFindObjects->mdfo1->Next ) {
- fwFindObjects->mdFindObjects = fwFindObjects->mdfo1;
- mdObject = fwFindObjects->mdfo1->Next(fwFindObjects->mdfo1,
- fwFindObjects, fwFindObjects->mdSession, fwFindObjects->fwSession,
- fwFindObjects->mdToken, fwFindObjects->fwToken,
- fwFindObjects->mdInstance, fwFindObjects->fwInstance,
- arenaOpt, pError);
- if( (NSSCKMDObject *)NULL == mdObject ) {
- if( CKR_OK != *pError ) {
- goto done;
- }
- /* All done. */
- fwFindObjects->mdfo1->Final(fwFindObjects->mdfo1, fwFindObjects,
- fwFindObjects->mdSession, fwFindObjects->fwSession,
- fwFindObjects->mdToken, fwFindObjects->fwToken,
- fwFindObjects->mdInstance, fwFindObjects->fwInstance);
- fwFindObjects->mdfo1 = (NSSCKMDFindObjects *)NULL;
- } else {
- goto wrap;
- }
- }
- }
- if( (NSSCKMDFindObjects *)NULL != fwFindObjects->mdfo2 ) {
- if( (void *)NULL != (void *)fwFindObjects->mdfo2->Next ) {
- fwFindObjects->mdFindObjects = fwFindObjects->mdfo2;
- mdObject = fwFindObjects->mdfo2->Next(fwFindObjects->mdfo2,
- fwFindObjects, fwFindObjects->mdSession, fwFindObjects->fwSession,
- fwFindObjects->mdToken, fwFindObjects->fwToken,
- fwFindObjects->mdInstance, fwFindObjects->fwInstance,
- arenaOpt, pError);
- if( (NSSCKMDObject *)NULL == mdObject ) {
- if( CKR_OK != *pError ) {
- goto done;
- }
- /* All done. */
- fwFindObjects->mdfo2->Final(fwFindObjects->mdfo2, fwFindObjects,
- fwFindObjects->mdSession, fwFindObjects->fwSession,
- fwFindObjects->mdToken, fwFindObjects->fwToken,
- fwFindObjects->mdInstance, fwFindObjects->fwInstance);
- fwFindObjects->mdfo2 = (NSSCKMDFindObjects *)NULL;
- } else {
- goto wrap;
- }
- }
- }
-
- /* No more objects */
- *pError = CKR_OK;
- goto done;
- wrap:
- /*
- * This is less than ideal-- we should determine if it's a token
- * object or a session object, and use the appropriate arena.
- * But that duplicates logic in nssCKFWObject_IsTokenObject.
- * Worry about that later. For now, be conservative, and use
- * the token arena.
- */
- objArena = nssCKFWToken_GetArena(fwFindObjects->fwToken, pError);
- if( (NSSArena *)NULL == objArena ) {
- if( CKR_OK == *pError ) {
- *pError = CKR_HOST_MEMORY;
- }
- goto done;
- }
- fwObject = nssCKFWObject_Create(objArena, mdObject,
- fwFindObjects->fwSession, fwFindObjects->fwToken,
- fwFindObjects->fwInstance, pError);
- if( (NSSCKFWObject *)NULL == fwObject ) {
- if( CKR_OK == *pError ) {
- *pError = CKR_GENERAL_ERROR;
- }
- }
- done:
- (void)nssCKFWMutex_Unlock(fwFindObjects->mutex);
- return fwObject;
- }
- /*
- * NSSCKFWFindObjects_GetMDFindObjects
- *
- */
- NSS_EXTERN NSSCKMDFindObjects *
- NSSCKFWFindObjects_GetMDFindObjects
- (
- NSSCKFWFindObjects *fwFindObjects
- )
- {
- #ifdef DEBUG
- if( CKR_OK != nssCKFWFindObjects_verifyPointer(fwFindObjects) ) {
- return (NSSCKMDFindObjects *)NULL;
- }
- #endif /* DEBUG */
- return nssCKFWFindObjects_GetMDFindObjects(fwFindObjects);
- }