mirror of
https://github.com/rn10950/RetroZilla.git
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287 lines
6.9 KiB
C
287 lines
6.9 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: bfind.c,v $ $Revision: 1.6 $ $Date: 2005/01/20 02:25:46 $";
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#endif /* DEBUG */
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#ifndef BUILTINS_H
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#include "builtins.h"
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#endif /* BUILTINS_H */
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/*
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* builtins/find.c
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*
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* This file implements the NSSCKMDFindObjects object for the
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* "builtin objects" cryptoki module.
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*/
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struct builtinsFOStr {
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NSSArena *arena;
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CK_ULONG n;
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CK_ULONG i;
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builtinsInternalObject **objs;
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};
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static void
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builtins_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 builtinsFOStr *fo = (struct builtinsFOStr *)mdFindObjects->etc;
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NSSArena *arena = fo->arena;
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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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builtins_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 builtinsFOStr *fo = (struct builtinsFOStr *)mdFindObjects->etc;
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builtinsInternalObject *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_builtins_CreateMDObject(arena, io, pError);
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}
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static int
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builtins_derUnwrapInt(unsigned char *src, int size, unsigned char **dest) {
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unsigned char *start = src;
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int len = 0;
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if (*src ++ != 2) {
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return 0;
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}
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len = *src++;
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if (len & 0x80) {
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int count = len & 0x7f;
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len =0;
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if (count+2 > size) {
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return 0;
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}
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while (count-- > 0) {
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len = (len << 8) | *src++;
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}
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}
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if (len + (src-start) != size) {
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return 0;
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}
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*dest = src;
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return len;
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}
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static CK_BBOOL
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builtins_attrmatch
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(
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CK_ATTRIBUTE_PTR a,
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const NSSItem *b
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)
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{
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PRBool prb;
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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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len = builtins_derUnwrapInt(b->data,b->size,&data);
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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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builtins_match
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(
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CK_ATTRIBUTE_PTR pTemplate,
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CK_ULONG ulAttributeCount,
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builtinsInternalObject *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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CK_ULONG j;
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for( j = 0; j < o->n; j++ ) {
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if( o->types[j] == pTemplate[i].type ) {
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if( CK_FALSE == builtins_attrmatch(&pTemplate[i], &o->items[j]) ) {
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return CK_FALSE;
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} else {
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break;
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}
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}
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}
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if( j == o->n ) {
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/* Loop ran to the end: no matching attribute */
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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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NSS_IMPLEMENT NSSCKMDFindObjects *
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nss_builtins_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 builtinsFOStr *fo = (struct builtinsFOStr *)NULL;
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builtinsInternalObject **temp = (builtinsInternalObject **)NULL;
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PRUint32 i;
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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 builtinsFOStr);
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if( (struct builtinsFOStr *)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 = builtins_mdFindObjects_Final;
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rv->Next = builtins_mdFindObjects_Next;
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rv->null = (void *)NULL;
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temp = nss_ZNEWARRAY((NSSArena *)NULL, builtinsInternalObject *,
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nss_builtins_nObjects);
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if( (builtinsInternalObject **)NULL == temp ) {
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*pError = CKR_HOST_MEMORY;
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goto loser;
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}
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for( i = 0; i < nss_builtins_nObjects; i++ ) {
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builtinsInternalObject *o = (builtinsInternalObject *)&nss_builtins_data[i];
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if( CK_TRUE == builtins_match(pTemplate, ulAttributeCount, o) ) {
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temp[ fo->n ] = o;
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fo->n++;
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}
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}
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fo->objs = nss_ZNEWARRAY(arena, builtinsInternalObject *, fo->n);
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if( (builtinsInternalObject **)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(builtinsInternalObject *) * fo->n);
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nss_ZFreeIf(temp);
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temp = (builtinsInternalObject **)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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