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405 lines
10 KiB
C
405 lines
10 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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* Portions created by Red Hat, Inc, are Copyright (C) 2005
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*
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* Contributor(s):
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* Bob Relyea (rrelyea@redhat.com)
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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: mfind.c,v $ $Revision: 1.1 $ $Date: 2005/11/23 23:04:08 $";
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#endif /* DEBUG */
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#ifndef CKMK_H
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#include "ckmk.h"
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#endif /* CKMK_H */
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/*
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* nssmkey/mfind.c
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*
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* This file implements the NSSCKMDFindObjects object for the
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* "nssmkey" cryptoki module.
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*/
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struct ckmkFOStr {
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NSSArena *arena;
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CK_ULONG n;
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CK_ULONG i;
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ckmkInternalObject **objs;
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};
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static void
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ckmk_mdFindObjects_Final
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(
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NSSCKMDFindObjects *mdFindObjects,
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NSSCKFWFindObjects *fwFindObjects,
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NSSCKMDSession *mdSession,
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NSSCKFWSession *fwSession,
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NSSCKMDToken *mdToken,
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NSSCKFWToken *fwToken,
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NSSCKMDInstance *mdInstance,
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NSSCKFWInstance *fwInstance
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)
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{
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struct ckmkFOStr *fo = (struct ckmkFOStr *)mdFindObjects->etc;
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NSSArena *arena = fo->arena;
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PRUint32 i;
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/* walk down an free the unused 'objs' */
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for (i=fo->i; i < fo->n ; i++) {
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nss_ckmk_DestroyInternalObject(fo->objs[i]);
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}
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nss_ZFreeIf(fo->objs);
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nss_ZFreeIf(fo);
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nss_ZFreeIf(mdFindObjects);
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if ((NSSArena *)NULL != arena) {
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NSSArena_Destroy(arena);
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}
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return;
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}
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static NSSCKMDObject *
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ckmk_mdFindObjects_Next
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(
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NSSCKMDFindObjects *mdFindObjects,
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NSSCKFWFindObjects *fwFindObjects,
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NSSCKMDSession *mdSession,
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NSSCKFWSession *fwSession,
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NSSCKMDToken *mdToken,
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NSSCKFWToken *fwToken,
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NSSCKMDInstance *mdInstance,
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NSSCKFWInstance *fwInstance,
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NSSArena *arena,
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CK_RV *pError
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)
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{
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struct ckmkFOStr *fo = (struct ckmkFOStr *)mdFindObjects->etc;
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ckmkInternalObject *io;
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if( fo->i == fo->n ) {
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*pError = CKR_OK;
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return (NSSCKMDObject *)NULL;
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}
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io = fo->objs[ fo->i ];
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fo->i++;
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return nss_ckmk_CreateMDObject(arena, io, pError);
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}
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static CK_BBOOL
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ckmk_attrmatch
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(
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CK_ATTRIBUTE_PTR a,
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ckmkInternalObject *o
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)
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{
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PRBool prb;
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const NSSItem *b;
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CK_RV error;
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b = nss_ckmk_FetchAttribute(o, a->type, &error);
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if (b == NULL) {
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return CK_FALSE;
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}
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if( a->ulValueLen != b->size ) {
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/* match a decoded serial number */
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if ((a->type == CKA_SERIAL_NUMBER) && (a->ulValueLen < b->size)) {
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int len;
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unsigned char *data;
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data = nss_ckmk_DERUnwrap(b->data, b->size, &len, NULL);
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if ((len == a->ulValueLen) &&
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nsslibc_memequal(a->pValue, data, len, (PRStatus *)NULL)) {
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return CK_TRUE;
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}
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}
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return CK_FALSE;
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}
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prb = nsslibc_memequal(a->pValue, b->data, b->size, (PRStatus *)NULL);
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if( PR_TRUE == prb ) {
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return CK_TRUE;
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} else {
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return CK_FALSE;
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}
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}
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static CK_BBOOL
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ckmk_match
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(
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CK_ATTRIBUTE_PTR pTemplate,
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CK_ULONG ulAttributeCount,
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ckmkInternalObject *o
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)
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{
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CK_ULONG i;
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for( i = 0; i < ulAttributeCount; i++ ) {
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if (CK_FALSE == ckmk_attrmatch(&pTemplate[i], o)) {
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return CK_FALSE;
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}
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}
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/* Every attribute passed */
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return CK_TRUE;
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}
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#define CKMK_ITEM_CHUNK 20
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#define PUT_OBJECT(obj, err, size, count, list) \
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{ \
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if (count >= size) { \
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(list) = (list) ? \
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nss_ZREALLOCARRAY(list, ckmkInternalObject *, \
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((size)+CKMK_ITEM_CHUNK) ) : \
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nss_ZNEWARRAY(NULL, ckmkInternalObject *, \
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((size)+CKMK_ITEM_CHUNK) ) ; \
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if ((ckmkInternalObject **)NULL == list) { \
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err = CKR_HOST_MEMORY; \
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goto loser; \
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} \
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(size) += CKMK_ITEM_CHUNK; \
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} \
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(list)[ count ] = (obj); \
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count++; \
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}
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/* find all the certs that represent the appropriate object (cert, priv key, or
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* pub key) in the cert store.
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*/
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static PRUint32
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collect_class(
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CK_OBJECT_CLASS objClass,
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SecItemClass itemClass,
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CK_ATTRIBUTE_PTR pTemplate,
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CK_ULONG ulAttributeCount,
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ckmkInternalObject ***listp,
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PRUint32 *sizep,
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PRUint32 count,
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CK_RV *pError
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)
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{
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ckmkInternalObject *next = NULL;
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SecKeychainSearchRef searchRef = 0;
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SecKeychainItemRef itemRef = 0;
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OSStatus error;
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/* future, build the attribute list based on the template
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* so we can refine the search */
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error = SecKeychainSearchCreateFromAttributes(
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NULL, itemClass, NULL, &searchRef);
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while (noErr == SecKeychainSearchCopyNext(searchRef, &itemRef)) {
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/* if we don't have an internal object structure, get one */
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if ((ckmkInternalObject *)NULL == next) {
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next = nss_ZNEW(NULL, ckmkInternalObject);
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if ((ckmkInternalObject *)NULL == next) {
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*pError = CKR_HOST_MEMORY;
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goto loser;
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}
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}
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/* fill in the relevant object data */
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next->type = ckmkItem;
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next->objClass = objClass;
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next->u.item.itemRef = itemRef;
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next->u.item.itemClass = itemClass;
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/* see if this is one of the objects we are looking for */
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if( CK_TRUE == ckmk_match(pTemplate, ulAttributeCount, next) ) {
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/* yes, put it on the list */
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PUT_OBJECT(next, *pError, *sizep, count, *listp);
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next = NULL; /* this one is on the list, need to allocate a new one now */
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} else {
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/* no , release the current item and clear out the structure for reuse */
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CFRelease(itemRef);
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/* don't cache the values we just loaded */
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nsslibc_memset(next, 0, sizeof(*next));
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}
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}
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loser:
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if (searchRef) {
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CFRelease(searchRef);
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}
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nss_ZFreeIf(next);
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return count;
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}
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static PRUint32
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collect_objects(
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CK_ATTRIBUTE_PTR pTemplate,
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CK_ULONG ulAttributeCount,
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ckmkInternalObject ***listp,
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CK_RV *pError
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)
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{
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PRUint32 i;
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PRUint32 count = 0;
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PRUint32 size = 0;
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CK_OBJECT_CLASS objClass;
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/*
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* first handle the static build in objects (if any)
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*/
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for( i = 0; i < nss_ckmk_nObjects; i++ ) {
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ckmkInternalObject *o = (ckmkInternalObject *)&nss_ckmk_data[i];
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if( CK_TRUE == ckmk_match(pTemplate, ulAttributeCount, o) ) {
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PUT_OBJECT(o, *pError, size, count, *listp);
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}
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}
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/*
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* now handle the various object types
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*/
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objClass = nss_ckmk_GetULongAttribute(CKA_CLASS,
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pTemplate, ulAttributeCount, pError);
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if (CKR_OK != *pError) {
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objClass = CK_INVALID_HANDLE;
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}
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*pError = CKR_OK;
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switch (objClass) {
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case CKO_CERTIFICATE:
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count = collect_class(objClass, kSecCertificateItemClass,
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pTemplate, ulAttributeCount, listp,
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&size, count, pError);
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break;
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case CKO_PUBLIC_KEY:
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count = collect_class(objClass, CSSM_DL_DB_RECORD_PUBLIC_KEY,
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pTemplate, ulAttributeCount, listp,
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&size, count, pError);
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break;
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case CKO_PRIVATE_KEY:
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count = collect_class(objClass, CSSM_DL_DB_RECORD_PRIVATE_KEY,
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pTemplate, ulAttributeCount, listp,
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&size, count, pError);
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break;
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/* all of them */
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case CK_INVALID_HANDLE:
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count = collect_class(CKO_CERTIFICATE, kSecCertificateItemClass,
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pTemplate, ulAttributeCount, listp,
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&size, count, pError);
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count = collect_class(CKO_PUBLIC_KEY, CSSM_DL_DB_RECORD_PUBLIC_KEY,
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pTemplate, ulAttributeCount, listp,
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&size, count, pError);
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count = collect_class(CKO_PUBLIC_KEY, CSSM_DL_DB_RECORD_PRIVATE_KEY,
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pTemplate, ulAttributeCount, listp,
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&size, count, pError);
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break;
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default:
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break;
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}
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if (CKR_OK != *pError) {
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goto loser;
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}
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return count;
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loser:
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nss_ZFreeIf(*listp);
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return 0;
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}
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NSS_IMPLEMENT NSSCKMDFindObjects *
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nss_ckmk_FindObjectsInit
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(
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NSSCKFWSession *fwSession,
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CK_ATTRIBUTE_PTR pTemplate,
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CK_ULONG ulAttributeCount,
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CK_RV *pError
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)
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{
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/* This could be made more efficient. I'm rather rushed. */
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NSSArena *arena;
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NSSCKMDFindObjects *rv = (NSSCKMDFindObjects *)NULL;
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struct ckmkFOStr *fo = (struct ckmkFOStr *)NULL;
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ckmkInternalObject **temp = (ckmkInternalObject **)NULL;
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arena = NSSArena_Create();
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if( (NSSArena *)NULL == arena ) {
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goto loser;
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}
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rv = nss_ZNEW(arena, NSSCKMDFindObjects);
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if( (NSSCKMDFindObjects *)NULL == rv ) {
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*pError = CKR_HOST_MEMORY;
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goto loser;
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}
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fo = nss_ZNEW(arena, struct ckmkFOStr);
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if( (struct ckmkFOStr *)NULL == fo ) {
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*pError = CKR_HOST_MEMORY;
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goto loser;
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}
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fo->arena = arena;
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/* fo->n and fo->i are already zero */
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rv->etc = (void *)fo;
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rv->Final = ckmk_mdFindObjects_Final;
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rv->Next = ckmk_mdFindObjects_Next;
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rv->null = (void *)NULL;
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fo->n = collect_objects(pTemplate, ulAttributeCount, &temp, pError);
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if (*pError != CKR_OK) {
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goto loser;
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}
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fo->objs = nss_ZNEWARRAY(arena, ckmkInternalObject *, fo->n);
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if( (ckmkInternalObject **)NULL == fo->objs ) {
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*pError = CKR_HOST_MEMORY;
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goto loser;
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}
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(void)nsslibc_memcpy(fo->objs, temp, sizeof(ckmkInternalObject *) * fo->n);
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nss_ZFreeIf(temp);
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temp = (ckmkInternalObject **)NULL;
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return rv;
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loser:
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nss_ZFreeIf(temp);
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nss_ZFreeIf(fo);
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nss_ZFreeIf(rv);
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if ((NSSArena *)NULL != arena) {
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NSSArena_Destroy(arena);
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}
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return (NSSCKMDFindObjects *)NULL;
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}
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