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comparison: security/nss/lib/ckfw/sessobj.c

security/nss/lib/ckfw/sessobj.c

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TOR_BUG_9701
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-1:000000000000 0:c1f404ea8bc3
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 /*
6 * sessobj.c
7 *
8 * This file contains an NSSCKMDObject implementation for session
9 * objects. The framework uses this implementation to manage
10 * session objects when a Module doesn't wish to be bothered.
11 */
12
13 #ifndef CK_T
14 #include "ck.h"
15 #endif /* CK_T */
16
17 /*
18 * nssCKMDSessionObject
19 *
20 * -- create --
21 * nssCKMDSessionObject_Create
22 *
23 * -- EPV calls --
24 * nss_ckmdSessionObject_Finalize
25 * nss_ckmdSessionObject_IsTokenObject
26 * nss_ckmdSessionObject_GetAttributeCount
27 * nss_ckmdSessionObject_GetAttributeTypes
28 * nss_ckmdSessionObject_GetAttributeSize
29 * nss_ckmdSessionObject_GetAttribute
30 * nss_ckmdSessionObject_SetAttribute
31 * nss_ckmdSessionObject_GetObjectSize
32 */
33
34 struct nssCKMDSessionObjectStr {
35 CK_ULONG n;
36 NSSArena *arena;
37 NSSItem *attributes;
38 CK_ATTRIBUTE_TYPE_PTR types;
39 nssCKFWHash *hash;
40 };
41 typedef struct nssCKMDSessionObjectStr nssCKMDSessionObject;
42
43 #ifdef DEBUG
44 /*
45 * But first, the pointer-tracking stuff.
46 *
47 * NOTE: the pointer-tracking support in NSS/base currently relies
48 * upon NSPR's CallOnce support. That, however, relies upon NSPR's
49 * locking, which is tied into the runtime. We need a pointer-tracker
50 * implementation that uses the locks supplied through C_Initialize.
51 * That support, however, can be filled in later. So for now, I'll
52 * just do this routines as no-ops.
53 */
54
55 static CK_RV
56 nss_ckmdSessionObject_add_pointer
57 (
58 const NSSCKMDObject *mdObject
59 )
60 {
61 return CKR_OK;
62 }
63
64 static CK_RV
65 nss_ckmdSessionObject_remove_pointer
66 (
67 const NSSCKMDObject *mdObject
68 )
69 {
70 return CKR_OK;
71 }
72
73 #ifdef NSS_DEBUG
74 static CK_RV
75 nss_ckmdSessionObject_verifyPointer
76 (
77 const NSSCKMDObject *mdObject
78 )
79 {
80 return CKR_OK;
81 }
82 #endif
83
84 #endif /* DEBUG */
85
86 /*
87 * We must forward-declare these routines
88 */
89 static void
90 nss_ckmdSessionObject_Finalize
91 (
92 NSSCKMDObject *mdObject,
93 NSSCKFWObject *fwObject,
94 NSSCKMDSession *mdSession,
95 NSSCKFWSession *fwSession,
96 NSSCKMDToken *mdToken,
97 NSSCKFWToken *fwToken,
98 NSSCKMDInstance *mdInstance,
99 NSSCKFWInstance *fwInstance
100 );
101
102 static CK_RV
103 nss_ckmdSessionObject_Destroy
104 (
105 NSSCKMDObject *mdObject,
106 NSSCKFWObject *fwObject,
107 NSSCKMDSession *mdSession,
108 NSSCKFWSession *fwSession,
109 NSSCKMDToken *mdToken,
110 NSSCKFWToken *fwToken,
111 NSSCKMDInstance *mdInstance,
112 NSSCKFWInstance *fwInstance
113 );
114
115 static CK_BBOOL
116 nss_ckmdSessionObject_IsTokenObject
117 (
118 NSSCKMDObject *mdObject,
119 NSSCKFWObject *fwObject,
120 NSSCKMDSession *mdSession,
121 NSSCKFWSession *fwSession,
122 NSSCKMDToken *mdToken,
123 NSSCKFWToken *fwToken,
124 NSSCKMDInstance *mdInstance,
125 NSSCKFWInstance *fwInstance
126 );
127
128 static CK_ULONG
129 nss_ckmdSessionObject_GetAttributeCount
130 (
131 NSSCKMDObject *mdObject,
132 NSSCKFWObject *fwObject,
133 NSSCKMDSession *mdSession,
134 NSSCKFWSession *fwSession,
135 NSSCKMDToken *mdToken,
136 NSSCKFWToken *fwToken,
137 NSSCKMDInstance *mdInstance,
138 NSSCKFWInstance *fwInstance,
139 CK_RV *pError
140 );
141
142 static CK_RV
143 nss_ckmdSessionObject_GetAttributeTypes
144 (
145 NSSCKMDObject *mdObject,
146 NSSCKFWObject *fwObject,
147 NSSCKMDSession *mdSession,
148 NSSCKFWSession *fwSession,
149 NSSCKMDToken *mdToken,
150 NSSCKFWToken *fwToken,
151 NSSCKMDInstance *mdInstance,
152 NSSCKFWInstance *fwInstance,
153 CK_ATTRIBUTE_TYPE_PTR typeArray,
154 CK_ULONG ulCount
155 );
156
157 static CK_ULONG
158 nss_ckmdSessionObject_GetAttributeSize
159 (
160 NSSCKMDObject *mdObject,
161 NSSCKFWObject *fwObject,
162 NSSCKMDSession *mdSession,
163 NSSCKFWSession *fwSession,
164 NSSCKMDToken *mdToken,
165 NSSCKFWToken *fwToken,
166 NSSCKMDInstance *mdInstance,
167 NSSCKFWInstance *fwInstance,
168 CK_ATTRIBUTE_TYPE attribute,
169 CK_RV *pError
170 );
171
172 static NSSCKFWItem
173 nss_ckmdSessionObject_GetAttribute
174 (
175 NSSCKMDObject *mdObject,
176 NSSCKFWObject *fwObject,
177 NSSCKMDSession *mdSession,
178 NSSCKFWSession *fwSession,
179 NSSCKMDToken *mdToken,
180 NSSCKFWToken *fwToken,
181 NSSCKMDInstance *mdInstance,
182 NSSCKFWInstance *fwInstance,
183 CK_ATTRIBUTE_TYPE attribute,
184 CK_RV *pError
185 );
186
187 static CK_RV
188 nss_ckmdSessionObject_SetAttribute
189 (
190 NSSCKMDObject *mdObject,
191 NSSCKFWObject *fwObject,
192 NSSCKMDSession *mdSession,
193 NSSCKFWSession *fwSession,
194 NSSCKMDToken *mdToken,
195 NSSCKFWToken *fwToken,
196 NSSCKMDInstance *mdInstance,
197 NSSCKFWInstance *fwInstance,
198 CK_ATTRIBUTE_TYPE attribute,
199 NSSItem *value
200 );
201
202 static CK_ULONG
203 nss_ckmdSessionObject_GetObjectSize
204 (
205 NSSCKMDObject *mdObject,
206 NSSCKFWObject *fwObject,
207 NSSCKMDSession *mdSession,
208 NSSCKFWSession *fwSession,
209 NSSCKMDToken *mdToken,
210 NSSCKFWToken *fwToken,
211 NSSCKMDInstance *mdInstance,
212 NSSCKFWInstance *fwInstance,
213 CK_RV *pError
214 );
215
216 /*
217 * nssCKMDSessionObject_Create
218 *
219 */
220 NSS_IMPLEMENT NSSCKMDObject *
221 nssCKMDSessionObject_Create
222 (
223 NSSCKFWToken *fwToken,
224 NSSArena *arena,
225 CK_ATTRIBUTE_PTR attributes,
226 CK_ULONG ulCount,
227 CK_RV *pError
228 )
229 {
230 NSSCKMDObject *mdObject = (NSSCKMDObject *)NULL;
231 nssCKMDSessionObject *mdso = (nssCKMDSessionObject *)NULL;
232 CK_ULONG i;
233 nssCKFWHash *hash;
234
235 *pError = CKR_OK;
236
237 mdso = nss_ZNEW(arena, nssCKMDSessionObject);
238 if (!mdso) {
239 goto loser;
240 }
241
242 mdso->arena = arena;
243 mdso->n = ulCount;
244 mdso->attributes = nss_ZNEWARRAY(arena, NSSItem, ulCount);
245 if (!mdso->attributes) {
246 goto loser;
247 }
248
249 mdso->types = nss_ZNEWARRAY(arena, CK_ATTRIBUTE_TYPE, ulCount);
250 if (!mdso->types) {
251 goto loser;
252 }
253 for( i = 0; i < ulCount; i++ ) {
254 mdso->types[i] = attributes[i].type;
255 mdso->attributes[i].size = attributes[i].ulValueLen;
256 mdso->attributes[i].data = nss_ZAlloc(arena, attributes[i].ulValueLen);
257 if (!mdso->attributes[i].data) {
258 goto loser;
259 }
260 (void)nsslibc_memcpy(mdso->attributes[i].data, attributes[i].pValue,
261 attributes[i].ulValueLen);
262 }
263
264 mdObject = nss_ZNEW(arena, NSSCKMDObject);
265 if (!mdObject) {
266 goto loser;
267 }
268
269 mdObject->etc = (void *)mdso;
270 mdObject->Finalize = nss_ckmdSessionObject_Finalize;
271 mdObject->Destroy = nss_ckmdSessionObject_Destroy;
272 mdObject->IsTokenObject = nss_ckmdSessionObject_IsTokenObject;
273 mdObject->GetAttributeCount = nss_ckmdSessionObject_GetAttributeCount;
274 mdObject->GetAttributeTypes = nss_ckmdSessionObject_GetAttributeTypes;
275 mdObject->GetAttributeSize = nss_ckmdSessionObject_GetAttributeSize;
276 mdObject->GetAttribute = nss_ckmdSessionObject_GetAttribute;
277 mdObject->SetAttribute = nss_ckmdSessionObject_SetAttribute;
278 mdObject->GetObjectSize = nss_ckmdSessionObject_GetObjectSize;
279
280 hash = nssCKFWToken_GetSessionObjectHash(fwToken);
281 if (!hash) {
282 *pError = CKR_GENERAL_ERROR;
283 goto loser;
284 }
285
286 mdso->hash = hash;
287
288 *pError = nssCKFWHash_Add(hash, mdObject, mdObject);
289 if( CKR_OK != *pError ) {
290 goto loser;
291 }
292
293 #ifdef DEBUG
294 if(( *pError = nss_ckmdSessionObject_add_pointer(mdObject)) != CKR_OK ) {
295 goto loser;
296 }
297 #endif /* DEBUG */
298
299 return mdObject;
300
301 loser:
302 if (mdso) {
303 if (mdso->attributes) {
304 for( i = 0; i < ulCount; i++ ) {
305 nss_ZFreeIf(mdso->attributes[i].data);
306 }
307 nss_ZFreeIf(mdso->attributes);
308 }
309 nss_ZFreeIf(mdso->types);
310 nss_ZFreeIf(mdso);
311 }
312
313 nss_ZFreeIf(mdObject);
314 if (*pError == CKR_OK) {
315 *pError = CKR_HOST_MEMORY;
316 }
317 return (NSSCKMDObject *)NULL;
318 }
319
320 /*
321 * nss_ckmdSessionObject_Finalize
322 *
323 */
324 static void
325 nss_ckmdSessionObject_Finalize
326 (
327 NSSCKMDObject *mdObject,
328 NSSCKFWObject *fwObject,
329 NSSCKMDSession *mdSession,
330 NSSCKFWSession *fwSession,
331 NSSCKMDToken *mdToken,
332 NSSCKFWToken *fwToken,
333 NSSCKMDInstance *mdInstance,
334 NSSCKFWInstance *fwInstance
335 )
336 {
337 /* This shouldn't ever be called */
338 return;
339 }
340
341 /*
342 * nss_ckmdSessionObject_Destroy
343 *
344 */
345
346 static CK_RV
347 nss_ckmdSessionObject_Destroy
348 (
349 NSSCKMDObject *mdObject,
350 NSSCKFWObject *fwObject,
351 NSSCKMDSession *mdSession,
352 NSSCKFWSession *fwSession,
353 NSSCKMDToken *mdToken,
354 NSSCKFWToken *fwToken,
355 NSSCKMDInstance *mdInstance,
356 NSSCKFWInstance *fwInstance
357 )
358 {
359 #ifdef NSSDEBUG
360 CK_RV error = CKR_OK;
361 #endif /* NSSDEBUG */
362 nssCKMDSessionObject *mdso;
363 CK_ULONG i;
364
365 #ifdef NSSDEBUG
366 error = nss_ckmdSessionObject_verifyPointer(mdObject);
367 if( CKR_OK != error ) {
368 return error;
369 }
370 #endif /* NSSDEBUG */
371
372 mdso = (nssCKMDSessionObject *)mdObject->etc;
373
374 nssCKFWHash_Remove(mdso->hash, mdObject);
375
376 for( i = 0; i < mdso->n; i++ ) {
377 nss_ZFreeIf(mdso->attributes[i].data);
378 }
379 nss_ZFreeIf(mdso->attributes);
380 nss_ZFreeIf(mdso->types);
381 nss_ZFreeIf(mdso);
382 nss_ZFreeIf(mdObject);
383
384 #ifdef DEBUG
385 (void)nss_ckmdSessionObject_remove_pointer(mdObject);
386 #endif /* DEBUG */
387
388 return CKR_OK;
389 }
390
391 /*
392 * nss_ckmdSessionObject_IsTokenObject
393 *
394 */
395
396 static CK_BBOOL
397 nss_ckmdSessionObject_IsTokenObject
398 (
399 NSSCKMDObject *mdObject,
400 NSSCKFWObject *fwObject,
401 NSSCKMDSession *mdSession,
402 NSSCKFWSession *fwSession,
403 NSSCKMDToken *mdToken,
404 NSSCKFWToken *fwToken,
405 NSSCKMDInstance *mdInstance,
406 NSSCKFWInstance *fwInstance
407 )
408 {
409 #ifdef NSSDEBUG
410 if( CKR_OK != nss_ckmdSessionObject_verifyPointer(mdObject) ) {
411 return CK_FALSE;
412 }
413 #endif /* NSSDEBUG */
414
415 /*
416 * This implementation is only ever used for session objects.
417 */
418 return CK_FALSE;
419 }
420
421 /*
422 * nss_ckmdSessionObject_GetAttributeCount
423 *
424 */
425 static CK_ULONG
426 nss_ckmdSessionObject_GetAttributeCount
427 (
428 NSSCKMDObject *mdObject,
429 NSSCKFWObject *fwObject,
430 NSSCKMDSession *mdSession,
431 NSSCKFWSession *fwSession,
432 NSSCKMDToken *mdToken,
433 NSSCKFWToken *fwToken,
434 NSSCKMDInstance *mdInstance,
435 NSSCKFWInstance *fwInstance,
436 CK_RV *pError
437 )
438 {
439 nssCKMDSessionObject *obj;
440
441 #ifdef NSSDEBUG
442 if (!pError) {
443 return 0;
444 }
445
446 *pError = nss_ckmdSessionObject_verifyPointer(mdObject);
447 if( CKR_OK != *pError ) {
448 return 0;
449 }
450
451 /* We could even check all the other arguments, for sanity. */
452 #endif /* NSSDEBUG */
453
454 obj = (nssCKMDSessionObject *)mdObject->etc;
455
456 return obj->n;
457 }
458
459 /*
460 * nss_ckmdSessionObject_GetAttributeTypes
461 *
462 */
463 static CK_RV
464 nss_ckmdSessionObject_GetAttributeTypes
465 (
466 NSSCKMDObject *mdObject,
467 NSSCKFWObject *fwObject,
468 NSSCKMDSession *mdSession,
469 NSSCKFWSession *fwSession,
470 NSSCKMDToken *mdToken,
471 NSSCKFWToken *fwToken,
472 NSSCKMDInstance *mdInstance,
473 NSSCKFWInstance *fwInstance,
474 CK_ATTRIBUTE_TYPE_PTR typeArray,
475 CK_ULONG ulCount
476 )
477 {
478 #ifdef NSSDEBUG
479 CK_RV error = CKR_OK;
480 #endif /* NSSDEBUG */
481 nssCKMDSessionObject *obj;
482
483 #ifdef NSSDEBUG
484 error = nss_ckmdSessionObject_verifyPointer(mdObject);
485 if( CKR_OK != error ) {
486 return error;
487 }
488
489 /* We could even check all the other arguments, for sanity. */
490 #endif /* NSSDEBUG */
491
492 obj = (nssCKMDSessionObject *)mdObject->etc;
493
494 if( ulCount < obj->n ) {
495 return CKR_BUFFER_TOO_SMALL;
496 }
497
498 (void)nsslibc_memcpy(typeArray, obj->types,
499 sizeof(CK_ATTRIBUTE_TYPE) * obj->n);
500
501 return CKR_OK;
502 }
503
504 /*
505 * nss_ckmdSessionObject_GetAttributeSize
506 *
507 */
508 static CK_ULONG
509 nss_ckmdSessionObject_GetAttributeSize
510 (
511 NSSCKMDObject *mdObject,
512 NSSCKFWObject *fwObject,
513 NSSCKMDSession *mdSession,
514 NSSCKFWSession *fwSession,
515 NSSCKMDToken *mdToken,
516 NSSCKFWToken *fwToken,
517 NSSCKMDInstance *mdInstance,
518 NSSCKFWInstance *fwInstance,
519 CK_ATTRIBUTE_TYPE attribute,
520 CK_RV *pError
521 )
522 {
523 nssCKMDSessionObject *obj;
524 CK_ULONG i;
525
526 #ifdef NSSDEBUG
527 if (!pError) {
528 return 0;
529 }
530
531 *pError = nss_ckmdSessionObject_verifyPointer(mdObject);
532 if( CKR_OK != *pError ) {
533 return 0;
534 }
535
536 /* We could even check all the other arguments, for sanity. */
537 #endif /* NSSDEBUG */
538
539 obj = (nssCKMDSessionObject *)mdObject->etc;
540
541 for( i = 0; i < obj->n; i++ ) {
542 if( attribute == obj->types[i] ) {
543 return (CK_ULONG)(obj->attributes[i].size);
544 }
545 }
546
547 *pError = CKR_ATTRIBUTE_TYPE_INVALID;
548 return 0;
549 }
550
551 /*
552 * nss_ckmdSessionObject_GetAttribute
553 *
554 */
555 static NSSCKFWItem
556 nss_ckmdSessionObject_GetAttribute
557 (
558 NSSCKMDObject *mdObject,
559 NSSCKFWObject *fwObject,
560 NSSCKMDSession *mdSession,
561 NSSCKFWSession *fwSession,
562 NSSCKMDToken *mdToken,
563 NSSCKFWToken *fwToken,
564 NSSCKMDInstance *mdInstance,
565 NSSCKFWInstance *fwInstance,
566 CK_ATTRIBUTE_TYPE attribute,
567 CK_RV *pError
568 )
569 {
570 NSSCKFWItem item;
571 nssCKMDSessionObject *obj;
572 CK_ULONG i;
573
574 item.needsFreeing = PR_FALSE;
575 item.item = NULL;
576 #ifdef NSSDEBUG
577 if (!pError) {
578 return item;
579 }
580
581 *pError = nss_ckmdSessionObject_verifyPointer(mdObject);
582 if( CKR_OK != *pError ) {
583 return item;
584 }
585
586 /* We could even check all the other arguments, for sanity. */
587 #endif /* NSSDEBUG */
588
589 obj = (nssCKMDSessionObject *)mdObject->etc;
590
591 for( i = 0; i < obj->n; i++ ) {
592 if( attribute == obj->types[i] ) {
593 item.item = &obj->attributes[i];
594 return item;
595 }
596 }
597
598 *pError = CKR_ATTRIBUTE_TYPE_INVALID;
599 return item;
600 }
601
602 /*
603 * nss_ckmdSessionObject_SetAttribute
604 *
605 */
606
607 /*
608 * Okay, so this implementation sucks. It doesn't support removing
609 * an attribute (if value == NULL), and could be more graceful about
610 * memory. It should allow "blank" slots in the arrays, with some
611 * invalid attribute type, and then it could support removal much
612 * more easily. Do this later.
613 */
614 static CK_RV
615 nss_ckmdSessionObject_SetAttribute
616 (
617 NSSCKMDObject *mdObject,
618 NSSCKFWObject *fwObject,
619 NSSCKMDSession *mdSession,
620 NSSCKFWSession *fwSession,
621 NSSCKMDToken *mdToken,
622 NSSCKFWToken *fwToken,
623 NSSCKMDInstance *mdInstance,
624 NSSCKFWInstance *fwInstance,
625 CK_ATTRIBUTE_TYPE attribute,
626 NSSItem *value
627 )
628 {
629 nssCKMDSessionObject *obj;
630 CK_ULONG i;
631 NSSItem n;
632 NSSItem *ra;
633 CK_ATTRIBUTE_TYPE_PTR rt;
634 #ifdef NSSDEBUG
635 CK_RV error;
636 #endif /* NSSDEBUG */
637
638 #ifdef NSSDEBUG
639 error = nss_ckmdSessionObject_verifyPointer(mdObject);
640 if( CKR_OK != error ) {
641 return 0;
642 }
643
644 /* We could even check all the other arguments, for sanity. */
645 #endif /* NSSDEBUG */
646
647 obj = (nssCKMDSessionObject *)mdObject->etc;
648
649 n.size = value->size;
650 n.data = nss_ZAlloc(obj->arena, n.size);
651 if (!n.data) {
652 return CKR_HOST_MEMORY;
653 }
654 (void)nsslibc_memcpy(n.data, value->data, n.size);
655
656 for( i = 0; i < obj->n; i++ ) {
657 if( attribute == obj->types[i] ) {
658 nss_ZFreeIf(obj->attributes[i].data);
659 obj->attributes[i] = n;
660 return CKR_OK;
661 }
662 }
663
664 /*
665 * It's new.
666 */
667
668 ra = (NSSItem *)nss_ZRealloc(obj->attributes, sizeof(NSSItem) * (obj->n + 1));
669 if (!ra) {
670 nss_ZFreeIf(n.data);
671 return CKR_HOST_MEMORY;
672 }
673 obj->attributes = ra;
674
675 rt = (CK_ATTRIBUTE_TYPE_PTR)nss_ZRealloc(obj->types,
676 sizeof(CK_ATTRIBUTE_TYPE) * (obj->n + 1));
677 if (!rt) {
678 nss_ZFreeIf(n.data);
679 return CKR_HOST_MEMORY;
680 }
681
682 obj->types = rt;
683 obj->attributes[obj->n] = n;
684 obj->types[obj->n] = attribute;
685 obj->n++;
686
687 return CKR_OK;
688 }
689
690 /*
691 * nss_ckmdSessionObject_GetObjectSize
692 *
693 */
694 static CK_ULONG
695 nss_ckmdSessionObject_GetObjectSize
696 (
697 NSSCKMDObject *mdObject,
698 NSSCKFWObject *fwObject,
699 NSSCKMDSession *mdSession,
700 NSSCKFWSession *fwSession,
701 NSSCKMDToken *mdToken,
702 NSSCKFWToken *fwToken,
703 NSSCKMDInstance *mdInstance,
704 NSSCKFWInstance *fwInstance,
705 CK_RV *pError
706 )
707 {
708 nssCKMDSessionObject *obj;
709 CK_ULONG i;
710 CK_ULONG rv = (CK_ULONG)0;
711
712 #ifdef NSSDEBUG
713 if (!pError) {
714 return 0;
715 }
716
717 *pError = nss_ckmdSessionObject_verifyPointer(mdObject);
718 if( CKR_OK != *pError ) {
719 return 0;
720 }
721
722 /* We could even check all the other arguments, for sanity. */
723 #endif /* NSSDEBUG */
724
725 obj = (nssCKMDSessionObject *)mdObject->etc;
726
727 for( i = 0; i < obj->n; i++ ) {
728 rv += obj->attributes[i].size;
729 }
730
731 rv += sizeof(NSSItem) * obj->n;
732 rv += sizeof(CK_ATTRIBUTE_TYPE) * obj->n;
733 rv += sizeof(nssCKMDSessionObject);
734
735 return rv;
736 }
737
738 /*
739 * nssCKMDFindSessionObjects
740 *
741 * -- create --
742 * nssCKMDFindSessionObjects_Create
743 *
744 * -- EPV calls --
745 * nss_ckmdFindSessionObjects_Final
746 * nss_ckmdFindSessionObjects_Next
747 */
748
749 struct nodeStr {
750 struct nodeStr *next;
751 NSSCKMDObject *mdObject;
752 };
753
754 struct nssCKMDFindSessionObjectsStr {
755 NSSArena *arena;
756 CK_RV error;
757 CK_ATTRIBUTE_PTR pTemplate;
758 CK_ULONG ulCount;
759 struct nodeStr *list;
760 nssCKFWHash *hash;
761
762 };
763 typedef struct nssCKMDFindSessionObjectsStr nssCKMDFindSessionObjects;
764
765 #ifdef DEBUG
766 /*
767 * But first, the pointer-tracking stuff.
768 *
769 * NOTE: the pointer-tracking support in NSS/base currently relies
770 * upon NSPR's CallOnce support. That, however, relies upon NSPR's
771 * locking, which is tied into the runtime. We need a pointer-tracker
772 * implementation that uses the locks supplied through C_Initialize.
773 * That support, however, can be filled in later. So for now, I'll
774 * just do this routines as no-ops.
775 */
776
777 static CK_RV
778 nss_ckmdFindSessionObjects_add_pointer
779 (
780 const NSSCKMDFindObjects *mdFindObjects
781 )
782 {
783 return CKR_OK;
784 }
785
786 static CK_RV
787 nss_ckmdFindSessionObjects_remove_pointer
788 (
789 const NSSCKMDFindObjects *mdFindObjects
790 )
791 {
792 return CKR_OK;
793 }
794
795 #ifdef NSS_DEBUG
796 static CK_RV
797 nss_ckmdFindSessionObjects_verifyPointer
798 (
799 const NSSCKMDFindObjects *mdFindObjects
800 )
801 {
802 return CKR_OK;
803 }
804 #endif
805
806 #endif /* DEBUG */
807
808 /*
809 * We must forward-declare these routines.
810 */
811 static void
812 nss_ckmdFindSessionObjects_Final
813 (
814 NSSCKMDFindObjects *mdFindObjects,
815 NSSCKFWFindObjects *fwFindObjects,
816 NSSCKMDSession *mdSession,
817 NSSCKFWSession *fwSession,
818 NSSCKMDToken *mdToken,
819 NSSCKFWToken *fwToken,
820 NSSCKMDInstance *mdInstance,
821 NSSCKFWInstance *fwInstance
822 );
823
824 static NSSCKMDObject *
825 nss_ckmdFindSessionObjects_Next
826 (
827 NSSCKMDFindObjects *mdFindObjects,
828 NSSCKFWFindObjects *fwFindObjects,
829 NSSCKMDSession *mdSession,
830 NSSCKFWSession *fwSession,
831 NSSCKMDToken *mdToken,
832 NSSCKFWToken *fwToken,
833 NSSCKMDInstance *mdInstance,
834 NSSCKFWInstance *fwInstance,
835 NSSArena *arena,
836 CK_RV *pError
837 );
838
839 static CK_BBOOL
840 items_match
841 (
842 NSSItem *a,
843 CK_VOID_PTR pValue,
844 CK_ULONG ulValueLen
845 )
846 {
847 if( a->size != ulValueLen ) {
848 return CK_FALSE;
849 }
850
851 if( PR_TRUE == nsslibc_memequal(a->data, pValue, ulValueLen, (PRStatus *)NULL) ) {
852 return CK_TRUE;
853 } else {
854 return CK_FALSE;
855 }
856 }
857
858 /*
859 * Our hashtable iterator
860 */
861 static void
862 findfcn
863 (
864 const void *key,
865 void *value,
866 void *closure
867 )
868 {
869 NSSCKMDObject *mdObject = (NSSCKMDObject *)value;
870 nssCKMDSessionObject *mdso = (nssCKMDSessionObject *)mdObject->etc;
871 nssCKMDFindSessionObjects *mdfso = (nssCKMDFindSessionObjects *)closure;
872 CK_ULONG i, j;
873 struct nodeStr *node;
874
875 if( CKR_OK != mdfso->error ) {
876 return;
877 }
878
879 for( i = 0; i < mdfso->ulCount; i++ ) {
880 CK_ATTRIBUTE_PTR p = &mdfso->pTemplate[i];
881
882 for( j = 0; j < mdso->n; j++ ) {
883 if( mdso->types[j] == p->type ) {
884 if( !items_match(&mdso->attributes[j], p->pValue, p->ulValueLen) ) {
885 return;
886 } else {
887 break;
888 }
889 }
890 }
891
892 if( j == mdso->n ) {
893 /* Attribute not found */
894 return;
895 }
896 }
897
898 /* Matches */
899 node = nss_ZNEW(mdfso->arena, struct nodeStr);
900 if( (struct nodeStr *)NULL == node ) {
901 mdfso->error = CKR_HOST_MEMORY;
902 return;
903 }
904
905 node->mdObject = mdObject;
906 node->next = mdfso->list;
907 mdfso->list = node;
908
909 return;
910 }
911
912 /*
913 * nssCKMDFindSessionObjects_Create
914 *
915 */
916 NSS_IMPLEMENT NSSCKMDFindObjects *
917 nssCKMDFindSessionObjects_Create
918 (
919 NSSCKFWToken *fwToken,
920 CK_ATTRIBUTE_PTR pTemplate,
921 CK_ULONG ulCount,
922 CK_RV *pError
923 )
924 {
925 NSSArena *arena;
926 nssCKMDFindSessionObjects *mdfso;
927 nssCKFWHash *hash;
928 NSSCKMDFindObjects *rv;
929
930 #ifdef NSSDEBUG
931 if (!pError) {
932 return (NSSCKMDFindObjects *)NULL;
933 }
934
935 *pError = nssCKFWToken_verifyPointer(fwToken);
936 if( CKR_OK != *pError ) {
937 return (NSSCKMDFindObjects *)NULL;
938 }
939
940 if( (CK_ATTRIBUTE_PTR)NULL == pTemplate ) {
941 *pError = CKR_ARGUMENTS_BAD;
942 return (NSSCKMDFindObjects *)NULL;
943 }
944 #endif /* NSSDEBUG */
945
946 *pError = CKR_OK;
947
948 hash = nssCKFWToken_GetSessionObjectHash(fwToken);
949 if (!hash) {
950 *pError= CKR_GENERAL_ERROR;
951 return (NSSCKMDFindObjects *)NULL;
952 }
953
954 arena = NSSArena_Create();
955 if (!arena) {
956 *pError = CKR_HOST_MEMORY;
957 return (NSSCKMDFindObjects *)NULL;
958 }
959
960 mdfso = nss_ZNEW(arena, nssCKMDFindSessionObjects);
961 if (!mdfso) {
962 goto loser;
963 }
964
965 rv = nss_ZNEW(arena, NSSCKMDFindObjects);
966 if(rv == NULL) {
967 goto loser;
968 }
969
970 mdfso->error = CKR_OK;
971 mdfso->pTemplate = pTemplate;
972 mdfso->ulCount = ulCount;
973 mdfso->hash = hash;
974
975 nssCKFWHash_Iterate(hash, findfcn, mdfso);
976
977 if( CKR_OK != mdfso->error ) {
978 goto loser;
979 }
980
981 rv->etc = (void *)mdfso;
982 rv->Final = nss_ckmdFindSessionObjects_Final;
983 rv->Next = nss_ckmdFindSessionObjects_Next;
984
985 #ifdef DEBUG
986 if( (*pError = nss_ckmdFindSessionObjects_add_pointer(rv)) != CKR_OK ) {
987 goto loser;
988 }
989 #endif /* DEBUG */
990 mdfso->arena = arena;
991
992 return rv;
993
994 loser:
995 if (arena) {
996 NSSArena_Destroy(arena);
997 }
998 if (*pError == CKR_OK) {
999 *pError = CKR_HOST_MEMORY;
1000 }
1001 return NULL;
1002 }
1003
1004 static void
1005 nss_ckmdFindSessionObjects_Final
1006 (
1007 NSSCKMDFindObjects *mdFindObjects,
1008 NSSCKFWFindObjects *fwFindObjects,
1009 NSSCKMDSession *mdSession,
1010 NSSCKFWSession *fwSession,
1011 NSSCKMDToken *mdToken,
1012 NSSCKFWToken *fwToken,
1013 NSSCKMDInstance *mdInstance,
1014 NSSCKFWInstance *fwInstance
1015 )
1016 {
1017 nssCKMDFindSessionObjects *mdfso;
1018
1019 #ifdef NSSDEBUG
1020 if( CKR_OK != nss_ckmdFindSessionObjects_verifyPointer(mdFindObjects) ) {
1021 return;
1022 }
1023 #endif /* NSSDEBUG */
1024
1025 mdfso = (nssCKMDFindSessionObjects *)mdFindObjects->etc;
1026 if (mdfso->arena) NSSArena_Destroy(mdfso->arena);
1027
1028 #ifdef DEBUG
1029 (void)nss_ckmdFindSessionObjects_remove_pointer(mdFindObjects);
1030 #endif /* DEBUG */
1031
1032 return;
1033 }
1034
1035 static NSSCKMDObject *
1036 nss_ckmdFindSessionObjects_Next
1037 (
1038 NSSCKMDFindObjects *mdFindObjects,
1039 NSSCKFWFindObjects *fwFindObjects,
1040 NSSCKMDSession *mdSession,
1041 NSSCKFWSession *fwSession,
1042 NSSCKMDToken *mdToken,
1043 NSSCKFWToken *fwToken,
1044 NSSCKMDInstance *mdInstance,
1045 NSSCKFWInstance *fwInstance,
1046 NSSArena *arena,
1047 CK_RV *pError
1048 )
1049 {
1050 nssCKMDFindSessionObjects *mdfso;
1051 NSSCKMDObject *rv = (NSSCKMDObject *)NULL;
1052
1053 #ifdef NSSDEBUG
1054 if( CKR_OK != nss_ckmdFindSessionObjects_verifyPointer(mdFindObjects) ) {
1055 return (NSSCKMDObject *)NULL;
1056 }
1057 #endif /* NSSDEBUG */
1058
1059 mdfso = (nssCKMDFindSessionObjects *)mdFindObjects->etc;
1060
1061 while (!rv) {
1062 if( (struct nodeStr *)NULL == mdfso->list ) {
1063 *pError = CKR_OK;
1064 return (NSSCKMDObject *)NULL;
1065 }
1066
1067 if( nssCKFWHash_Exists(mdfso->hash, mdfso->list->mdObject) ) {
1068 rv = mdfso->list->mdObject;
1069 }
1070
1071 mdfso->list = mdfso->list->next;
1072 }
1073
1074 return rv;
1075 }

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