summaryrefslogtreecommitdiffstats
path: root/security/nss/lib/softoken/pkcs11i.h
blob: 51127a32a3660538e7ef9fe5a12da2f84cc9c724 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
 * Internal data structures and functions used by pkcs11.c
 */
#ifndef _PKCS11I_H_
#define _PKCS11I_H_ 1

#include "nssilock.h"
#include "seccomon.h"
#include "secoidt.h"
#include "lowkeyti.h"
#include "pkcs11t.h"

#include "sftkdbt.h"
#include "chacha20poly1305.h"
#include "hasht.h"

#include "alghmac.h"
#include "cmac.h"

/*
 * Configuration Defines
 *
 * The following defines affect the space verse speed trade offs of
 * the PKCS #11 module. For the most part the current settings are optimized
 * for web servers, where we want faster speed and lower lock contention at
 * the expense of space.
 */

/*
 * The attribute allocation strategy is static allocation:
 *   Attributes are pre-allocated as part of the session object and used from
 *   the object array.
 */
#define MAX_OBJS_ATTRS 45 /* number of attributes to preallocate in \
                           * the object (must me the absolute max) */
#define ATTR_SPACE 50     /* Maximum size of attribute data before extra \
                           * data needs to be allocated. This is set to  \
                           * enough space to hold an SSL MASTER secret */

#define NSC_STRICT PR_FALSE /* forces the code to do strict template     \
                             * matching when doing C_FindObject on token \
                             * objects. This will slow down search in    \
                             * NSS. */
/* default search block allocations and increments */
#define NSC_CERT_BLOCK_SIZE 50
#define NSC_SEARCH_BLOCK_SIZE 5
#define NSC_SLOT_LIST_BLOCK_SIZE 10

#define NSC_FIPS_MODULE 1
#define NSC_NON_FIPS_MODULE 0

/* these are data base storage hashes, not cryptographic hashes.. The define
 * the effective size of the various object hash tables */
/* clients care more about memory usage than lookup performance on
 * cyrptographic objects. Clients also have less objects around to play with
 *
 * we eventually should make this configurable at runtime! Especially now that
 * NSS is a shared library.
 */
#define SPACE_ATTRIBUTE_HASH_SIZE 32
#define SPACE_SESSION_OBJECT_HASH_SIZE 32
#define SPACE_SESSION_HASH_SIZE 32
#define TIME_ATTRIBUTE_HASH_SIZE 32
#define TIME_SESSION_OBJECT_HASH_SIZE 1024
#define TIME_SESSION_HASH_SIZE 1024
#define MAX_OBJECT_LIST_SIZE 800
/* how many objects to keep on the free list
                   * before we start freeing them */
#define MAX_KEY_LEN 256 /* maximum symmetric key length in bytes */

/*
 * LOG2_BUCKETS_PER_SESSION_LOCK must be a prime number.
 * With SESSION_HASH_SIZE=1024, LOG2 can be 9, 5, 1, or 0.
 * With SESSION_HASH_SIZE=4096, LOG2 can be 11, 9, 5, 1, or 0.
 *
 * HASH_SIZE   LOG2_BUCKETS_PER   BUCKETS_PER_LOCK  NUMBER_OF_BUCKETS
 * 1024        9                  512               2
 * 1024        5                  32                32
 * 1024        1                  2                 512
 * 1024        0                  1                 1024
 * 4096        11                 2048              2
 * 4096        9                  512               8
 * 4096        5                  32                128
 * 4096        1                  2                 2048
 * 4096        0                  1                 4096
 */
#define LOG2_BUCKETS_PER_SESSION_LOCK 1
#define BUCKETS_PER_SESSION_LOCK (1 << (LOG2_BUCKETS_PER_SESSION_LOCK))
/* NOSPREAD sessionID to hash table index macro has been slower. */

/* define typedefs, double as forward declarations as well */
typedef struct SFTKAttributeStr SFTKAttribute;
typedef struct SFTKObjectListStr SFTKObjectList;
typedef struct SFTKObjectFreeListStr SFTKObjectFreeList;
typedef struct SFTKObjectListElementStr SFTKObjectListElement;
typedef struct SFTKObjectStr SFTKObject;
typedef struct SFTKSessionObjectStr SFTKSessionObject;
typedef struct SFTKTokenObjectStr SFTKTokenObject;
typedef struct SFTKSessionStr SFTKSession;
typedef struct SFTKSlotStr SFTKSlot;
typedef struct SFTKSessionContextStr SFTKSessionContext;
typedef struct SFTKSearchResultsStr SFTKSearchResults;
typedef struct SFTKHashVerifyInfoStr SFTKHashVerifyInfo;
typedef struct SFTKHashSignInfoStr SFTKHashSignInfo;
typedef struct SFTKOAEPEncryptInfoStr SFTKOAEPEncryptInfo;
typedef struct SFTKOAEPDecryptInfoStr SFTKOAEPDecryptInfo;
typedef struct SFTKSSLMACInfoStr SFTKSSLMACInfo;
typedef struct SFTKChaCha20Poly1305InfoStr SFTKChaCha20Poly1305Info;
typedef struct SFTKChaCha20CtrInfoStr SFTKChaCha20CtrInfo;
typedef struct SFTKItemTemplateStr SFTKItemTemplate;

/* define function pointer typdefs for pointer tables */
typedef void (*SFTKDestroy)(void *, PRBool);
typedef void (*SFTKBegin)(void *);
typedef SECStatus (*SFTKCipher)(void *, void *, unsigned int *, unsigned int,
                                void *, unsigned int);
typedef SECStatus (*SFTKVerify)(void *, void *, unsigned int, void *, unsigned int);
typedef void (*SFTKHash)(void *, const void *, unsigned int);
typedef void (*SFTKEnd)(void *, void *, unsigned int *, unsigned int);
typedef void (*SFTKFree)(void *);

/* Value to tell if an attribute is modifiable or not.
 *    NEVER: attribute is only set on creation.
 *    ONCOPY: attribute is set on creation and can only be changed on copy.
 *    SENSITIVE: attribute can only be changed to TRUE.
 *    ALWAYS: attribute can always be changed.
 */
typedef enum {
    SFTK_NEVER = 0,
    SFTK_ONCOPY = 1,
    SFTK_SENSITIVE = 2,
    SFTK_ALWAYS = 3
} SFTKModifyType;

/*
 * Free Status Enum... tell us more information when we think we're
 * deleting an object.
 */
typedef enum {
    SFTK_DestroyFailure,
    SFTK_Destroyed,
    SFTK_Busy
} SFTKFreeStatus;

/*
 * attribute values of an object.
 */
struct SFTKAttributeStr {
    SFTKAttribute *next;
    SFTKAttribute *prev;
    PRBool freeAttr;
    PRBool freeData;
    /*must be called handle to make sftkqueue_find work */
    CK_ATTRIBUTE_TYPE handle;
    CK_ATTRIBUTE attrib;
    unsigned char space[ATTR_SPACE];
};

/*
 * doubly link list of objects
 */
struct SFTKObjectListStr {
    SFTKObjectList *next;
    SFTKObjectList *prev;
    SFTKObject *parent;
};

struct SFTKObjectFreeListStr {
    SFTKObject *head;
    PZLock *lock;
    int count;
};

/*
 * PKCS 11 crypto object structure
 */
struct SFTKObjectStr {
    SFTKObject *next;
    SFTKObject *prev;
    CK_OBJECT_CLASS objclass;
    CK_OBJECT_HANDLE handle;
    int refCount;
    PZLock *refLock;
    SFTKSlot *slot;
    void *objectInfo;
    SFTKFree infoFree;
};

struct SFTKTokenObjectStr {
    SFTKObject obj;
    SECItem dbKey;
};

struct SFTKSessionObjectStr {
    SFTKObject obj;
    SFTKObjectList sessionList;
    PZLock *attributeLock;
    SFTKSession *session;
    PRBool wasDerived;
    int nextAttr;
    SFTKAttribute attrList[MAX_OBJS_ATTRS];
    PRBool optimizeSpace;
    unsigned int hashSize;
    SFTKAttribute *head[1];
};

/*
 * struct to deal with a temparary list of objects
 */
struct SFTKObjectListElementStr {
    SFTKObjectListElement *next;
    SFTKObject *object;
};

/*
 * Area to hold Search results
 */
struct SFTKSearchResultsStr {
    CK_OBJECT_HANDLE *handles;
    int size;
    int index;
    int array_size;
};

/*
 * the universal crypto/hash/sign/verify context structure
 */
typedef enum {
    SFTK_ENCRYPT,
    SFTK_DECRYPT,
    SFTK_HASH,
    SFTK_SIGN,
    SFTK_SIGN_RECOVER,
    SFTK_VERIFY,
    SFTK_VERIFY_RECOVER
} SFTKContextType;

/** max block size of supported block ciphers */
#define SFTK_MAX_BLOCK_SIZE 16
/** currently SHA512 is the biggest hash length */
#define SFTK_MAX_MAC_LENGTH 64
#define SFTK_INVALID_MAC_SIZE 0xffffffff

/** Particular ongoing operation in session (sign/verify/digest/encrypt/...)
 *
 *  Understanding sign/verify context:
 *      multi=1 hashInfo=0   block (symmetric) cipher MACing
 *      multi=1 hashInfo=X   PKC S/V with prior hashing
 *      multi=0 hashInfo=0   PKC S/V one shot (w/o hashing)
 *      multi=0 hashInfo=X   *** shouldn't happen ***
 */
struct SFTKSessionContextStr {
    SFTKContextType type;
    PRBool multi;               /* is multipart */
    PRBool rsa;                 /* is rsa */
    PRBool doPad;               /* use PKCS padding for block ciphers */
    PRBool isXCBC;              /* xcbc, use special handling in final */
    unsigned int blockSize;     /* blocksize for padding */
    unsigned int padDataLength; /* length of the valid data in padbuf */
    /** latest incomplete block of data for block cipher */
    unsigned char padBuf[SFTK_MAX_BLOCK_SIZE];
    /** result of MAC'ing of latest full block of data with block cipher */
    unsigned char macBuf[SFTK_MAX_BLOCK_SIZE];
    unsigned char k2[SFTK_MAX_BLOCK_SIZE];
    unsigned char k3[SFTK_MAX_BLOCK_SIZE];
    CK_ULONG macSize; /* size of a general block cipher mac*/
    void *cipherInfo;
    void *hashInfo;
    unsigned int cipherInfoLen;
    CK_MECHANISM_TYPE currentMech;
    SFTKCipher update;
    SFTKHash hashUpdate;
    SFTKEnd end;
    SFTKDestroy destroy;
    SFTKDestroy hashdestroy;
    SFTKVerify verify;
    unsigned int maxLen;
    SFTKObject *key;
};

/*
 * Sessions (have objects)
 */
struct SFTKSessionStr {
    SFTKSession *next;
    SFTKSession *prev;
    CK_SESSION_HANDLE handle;
    PZLock *objectLock;
    int objectIDCount;
    CK_SESSION_INFO info;
    CK_NOTIFY notify;
    CK_VOID_PTR appData;
    SFTKSlot *slot;
    SFTKSearchResults *search;
    SFTKSessionContext *enc_context;
    SFTKSessionContext *hash_context;
    SFTKSessionContext *sign_context;
    SFTKObjectList *objects[1];
};

/*
 * slots (have sessions and objects)
 *
 * The array of sessionLock's protect the session hash table (head[])
 * as well as the reference count of session objects in that bucket
 * (head[]->refCount),  objectLock protects all elements of the slot's
 * object hash tables (sessObjHashTable[] and tokObjHashTable), and
 * sessionObjectHandleCount.
 * slotLock protects the remaining protected elements:
 * password, isLoggedIn, ssoLoggedIn, and sessionCount,
 * and pwCheckLock serializes the key database password checks in
 * NSC_SetPIN and NSC_Login.
 *
 * Each of the fields below has the following lifetime as commented
 * next to the fields:
 *   invariant  - This value is set when the slot is first created and
 * never changed until it is destroyed.
 *   per load   - This value is set when the slot is first created, or
 * when the slot is used to open another directory. Between open and close
 * this field does not change.
 *   variable - This value changes through the normal process of slot operation.
 *      - reset. The value of this variable is cleared during an open/close
 *   cycles.
 *      - preserved. The value of this variable is preserved over open/close
 *   cycles.
 */
struct SFTKSlotStr {
    CK_SLOT_ID slotID;             /* invariant */
    PZLock *slotLock;              /* invariant */
    PZLock **sessionLock;          /* invariant */
    unsigned int numSessionLocks;  /* invariant */
    unsigned long sessionLockMask; /* invariant */
    PZLock *objectLock;            /* invariant */
    PRLock *pwCheckLock;           /* invariant */
    PRBool present;                /* variable -set */
    PRBool hasTokens;              /* per load */
    PRBool isLoggedIn;             /* variable - reset */
    PRBool ssoLoggedIn;            /* variable - reset */
    PRBool needLogin;              /* per load */
    PRBool DB_loaded;              /* per load */
    PRBool readOnly;               /* per load */
    PRBool optimizeSpace;          /* invariant */
    SFTKDBHandle *certDB;          /* per load */
    SFTKDBHandle *keyDB;           /* per load */
    int minimumPinLen;             /* per load */
    PRInt32 sessionIDCount;        /* atomically incremented */
                                   /* (preserved) */
    int sessionIDConflict;         /* not protected by a lock */
                                   /* (preserved) */
    int sessionCount;              /* variable - reset */
    PRInt32 rwSessionCount;        /* set by atomic operations */
                                   /* (reset) */
    int sessionObjectHandleCount;  /* variable - perserved */
    CK_ULONG index;                /* invariant */
    PLHashTable *tokObjHashTable;  /* invariant */
    SFTKObject **sessObjHashTable; /* variable - reset */
    unsigned int sessObjHashSize;  /* invariant */
    SFTKSession **head;            /* variable -reset */
    unsigned int sessHashSize;     /* invariant */
    char tokDescription[33];       /* per load */
    char updateTokDescription[33]; /* per load */
    char slotDescription[65];      /* invariant */
};

/*
 * special joint operations Contexts
 */
struct SFTKHashVerifyInfoStr {
    SECOidTag hashOid;
    void *params;
    NSSLOWKEYPublicKey *key;
};

struct SFTKHashSignInfoStr {
    SECOidTag hashOid;
    void *params;
    NSSLOWKEYPrivateKey *key;
};

/**
 * Contexts for RSA-OAEP
 */
struct SFTKOAEPEncryptInfoStr {
    CK_RSA_PKCS_OAEP_PARAMS *params;
    NSSLOWKEYPublicKey *key;
};

struct SFTKOAEPDecryptInfoStr {
    CK_RSA_PKCS_OAEP_PARAMS *params;
    NSSLOWKEYPrivateKey *key;
};

/* context for the Final SSLMAC message */
struct SFTKSSLMACInfoStr {
    void *hashContext;
    SFTKBegin begin;
    SFTKHash update;
    SFTKEnd end;
    CK_ULONG macSize;
    int padSize;
    unsigned char key[MAX_KEY_LEN];
    unsigned int keySize;
};

/* SFTKChaCha20Poly1305Info saves the key, tag length, nonce,
 * and additional data for a ChaCha20+Poly1305 AEAD operation. */
struct SFTKChaCha20Poly1305InfoStr {
    ChaCha20Poly1305Context freeblCtx;
    unsigned char nonce[12];
    unsigned char ad[16];
    unsigned char *adOverflow;
    unsigned int adLen;
};

/* SFTKChaCha20BlockInfoStr the key, nonce and counter for a
 * ChaCha20 block operation. */
struct SFTKChaCha20CtrInfoStr {
    PRUint8 key[32];
    PRUint8 nonce[12];
    PRUint32 counter;
};

/*
 * Template based on SECItems, suitable for passing as arrays
 */
struct SFTKItemTemplateStr {
    CK_ATTRIBUTE_TYPE type;
    SECItem *item;
};

/* macro for setting SFTKTemplates. */
#define SFTK_SET_ITEM_TEMPLATE(templ, count, itemPtr, attr) \
    templ[count].type = attr;                               \
    templ[count].item = itemPtr

#define SFTK_MAX_ITEM_TEMPLATE 10

/*
 * session handle modifiers
 */
#define SFTK_SESSION_SLOT_MASK 0xff000000L

/*
 * object handle modifiers
 */
#define SFTK_TOKEN_MASK 0x80000000L
#define SFTK_TOKEN_MAGIC 0x80000000L
#define SFTK_TOKEN_TYPE_MASK 0x70000000L
/* keydb (high bit == 0) */
#define SFTK_TOKEN_TYPE_PRIV 0x10000000L
#define SFTK_TOKEN_TYPE_PUB 0x20000000L
#define SFTK_TOKEN_TYPE_KEY 0x30000000L
/* certdb (high bit == 1) */
#define SFTK_TOKEN_TYPE_TRUST 0x40000000L
#define SFTK_TOKEN_TYPE_CRL 0x50000000L
#define SFTK_TOKEN_TYPE_SMIME 0x60000000L
#define SFTK_TOKEN_TYPE_CERT 0x70000000L

#define SFTK_TOKEN_KRL_HANDLE (SFTK_TOKEN_MAGIC | SFTK_TOKEN_TYPE_CRL | 1)
/* how big (in bytes) a password/pin we can deal with */
#define SFTK_MAX_PIN 500
/* minimum password/pin length (in Unicode characters) in FIPS mode */
#define FIPS_MIN_PIN 7

/* slot ID's */
#define NETSCAPE_SLOT_ID 1
#define PRIVATE_KEY_SLOT_ID 2
#define FIPS_SLOT_ID 3

/* slot helper macros */
#define sftk_SlotFromSession(sp) ((sp)->slot)
#define sftk_isToken(id) (((id)&SFTK_TOKEN_MASK) == SFTK_TOKEN_MAGIC)

/* the session hash multiplier (see bug 201081) */
#define SHMULTIPLIER 1791398085

/* queueing helper macros */
#define sftk_hash(value, size) \
    ((PRUint32)((value)*SHMULTIPLIER) & (size - 1))
#define sftkqueue_add(element, id, head, hash_size) \
    {                                               \
        int tmp = sftk_hash(id, hash_size);         \
        (element)->next = (head)[tmp];              \
        (element)->prev = NULL;                     \
        if ((head)[tmp])                            \
            (head)[tmp]->prev = (element);          \
        (head)[tmp] = (element);                    \
    }
#define sftkqueue_find(element, id, head, hash_size)                      \
    for ((element) = (head)[sftk_hash(id, hash_size)]; (element) != NULL; \
         (element) = (element)->next) {                                   \
        if ((element)->handle == (id)) {                                  \
            break;                                                        \
        }                                                                 \
    }
#define sftkqueue_is_queued(element, id, head, hash_size) \
    (((element)->next) || ((element)->prev) ||            \
     ((head)[sftk_hash(id, hash_size)] == (element)))
#define sftkqueue_delete(element, id, head, hash_size)        \
    if ((element)->next)                                      \
        (element)->next->prev = (element)->prev;              \
    if ((element)->prev)                                      \
        (element)->prev->next = (element)->next;              \
    else                                                      \
        (head)[sftk_hash(id, hash_size)] = ((element)->next); \
    (element)->next = NULL;                                   \
    (element)->prev = NULL;

#define sftkqueue_init_element(element) \
    (element)->prev = NULL;

#define sftkqueue_add2(element, id, index, head) \
    {                                            \
        (element)->next = (head)[index];         \
        if ((head)[index])                       \
            (head)[index]->prev = (element);     \
        (head)[index] = (element);               \
    }

#define sftkqueue_find2(element, id, index, head) \
    for ((element) = (head)[index];               \
         (element) != NULL;                       \
         (element) = (element)->next) {           \
        if ((element)->handle == (id)) {          \
            break;                                \
        }                                         \
    }

#define sftkqueue_delete2(element, id, index, head) \
    if ((element)->next)                            \
        (element)->next->prev = (element)->prev;    \
    if ((element)->prev)                            \
        (element)->prev->next = (element)->next;    \
    else                                            \
        (head)[index] = ((element)->next);

#define sftkqueue_clear_deleted_element(element) \
    (element)->next = NULL;                      \
    (element)->prev = NULL;

/* sessionID (handle) is used to determine session lock bucket */
#ifdef NOSPREAD
/* NOSPREAD:    (ID>>L2LPB) & (perbucket-1) */
#define SFTK_SESSION_LOCK(slot, handle) \
    ((slot)->sessionLock[((handle) >> LOG2_BUCKETS_PER_SESSION_LOCK) & (slot)->sessionLockMask])
#else
/* SPREAD:  ID & (perbucket-1) */
#define SFTK_SESSION_LOCK(slot, handle) \
    ((slot)->sessionLock[(handle) & (slot)->sessionLockMask])
#endif

/* expand an attribute & secitem structures out */
#define sftk_attr_expand(ap) (ap)->type, (ap)->pValue, (ap)->ulValueLen
#define sftk_item_expand(ip) (ip)->data, (ip)->len

typedef struct sftk_token_parametersStr {
    CK_SLOT_ID slotID;
    char *configdir;
    char *certPrefix;
    char *keyPrefix;
    char *updatedir;
    char *updCertPrefix;
    char *updKeyPrefix;
    char *updateID;
    char *tokdes;
    char *slotdes;
    char *updtokdes;
    int minPW;
    PRBool readOnly;
    PRBool noCertDB;
    PRBool noKeyDB;
    PRBool forceOpen;
    PRBool pwRequired;
    PRBool optimizeSpace;
} sftk_token_parameters;

typedef struct sftk_parametersStr {
    char *configdir;
    char *updatedir;
    char *updateID;
    char *secmodName;
    char *man;
    char *libdes;
    PRBool readOnly;
    PRBool noModDB;
    PRBool noCertDB;
    PRBool forceOpen;
    PRBool pwRequired;
    PRBool optimizeSpace;
    sftk_token_parameters *tokens;
    int token_count;
} sftk_parameters;

/* path stuff (was machine dependent) used by dbinit.c and pk11db.c */
#define CERT_DB_FMT "%scert%s.db"
#define KEY_DB_FMT "%skey%s.db"

struct sftk_MACConstantTimeCtxStr {
    const SECHashObject *hash;
    unsigned char mac[64];
    unsigned char secret[64];
    unsigned int headerLength;
    unsigned int secretLength;
    unsigned int totalLength;
    unsigned char header[75];
};
typedef struct sftk_MACConstantTimeCtxStr sftk_MACConstantTimeCtx;

struct sftk_MACCtxStr {
    /* This is a common MAC context that supports both HMAC and CMAC
     * operations. This also presents a unified set of semantics:
     *
     *  - Everything except Destroy returns a CK_RV, indicating success
     *    or failure. (This handles the difference between HMAC's and CMAC's
     *    interfaces, since the underlying AES _might_ fail with CMAC).
     *
     *  - The underlying MAC is started on Init(...), so Update(...) can
     *    called right away. (This handles the difference between HMAC and
     *    CMAC in their *_Init(...) functions).
     *
     *  - Calling semantics:
     *
     *      - One of sftk_MAC_{Create,Init,InitRaw}(...) to set up the MAC
     *        context, checking the return code.
     *      - sftk_MAC_Update(...) as many times as necessary to process
     *        input data, checking the return code.
     *      - sftk_MAC_Finish(...) to get the output of the MAC; result_len
     *        may be NULL if the caller knows the expected output length,
     *        checking the return code. If result_len is NULL, this will
     *        PR_ASSERT(...) that the actual returned length was equal to
     *        max_result_len.
     *
     *        Note: unlike HMAC_Finish(...), this allows the caller to specify
     *        a return value less than return length, to align with
     *        CMAC_Finish(...)'s semantics. This will force an additional
     *        stack allocation of size SFTK_MAX_MAC_LENGTH.
     *      - sftk_MAC_Reset(...) if the caller wishes to compute a new MAC
     *        with the same key, checking the return code.
     *      - sftk_MAC_Destroy(...) when the caller frees its associated
     *        memory, passing PR_TRUE if sftk_MAC_Create(...) was called,
     *        and PR_FALSE otherwise.
     */

    CK_MECHANISM_TYPE mech;
    unsigned int mac_size;

    union {
        HMACContext *hmac;
        CMACContext *cmac;

        /* Functions to update when adding a new MAC or a new hash:
         *
         *  - sftk_MAC_Init
         *  - sftk_MAC_Update
         *  - sftk_MAC_Finish
         *  - sftk_MAC_Reset
         */
        void *raw;
    } mac;

    void (*destroy_func)(void *ctx, PRBool free_it);
};
typedef struct sftk_MACCtxStr sftk_MACCtx;

SEC_BEGIN_PROTOS

/* shared functions between pkcs11.c and fipstokn.c */
extern PRBool nsf_init;
extern CK_RV nsc_CommonInitialize(CK_VOID_PTR pReserved, PRBool isFIPS);
extern CK_RV nsc_CommonFinalize(CK_VOID_PTR pReserved, PRBool isFIPS);
extern PRBool sftk_ForkReset(CK_VOID_PTR pReserved, CK_RV *crv);
extern CK_RV nsc_CommonGetSlotList(CK_BBOOL tokPresent,
                                   CK_SLOT_ID_PTR pSlotList, CK_ULONG_PTR pulCount, int moduleIndex);

/* slot initialization, reinit, shutdown and destruction */
extern CK_RV SFTK_SlotInit(char *configdir, char *updatedir, char *updateID,
                           sftk_token_parameters *params, int moduleIndex);
extern CK_RV SFTK_SlotReInit(SFTKSlot *slot, char *configdir,
                             char *updatedir, char *updateID,
                             sftk_token_parameters *params, int moduleIndex);
extern CK_RV SFTK_DestroySlotData(SFTKSlot *slot);
extern CK_RV SFTK_ShutdownSlot(SFTKSlot *slot);
extern CK_RV sftk_CloseAllSessions(SFTKSlot *slot, PRBool logout);

/* internal utility functions used by pkcs11.c */
extern CK_RV sftk_MapCryptError(int error);
extern SFTKAttribute *sftk_FindAttribute(SFTKObject *object,
                                         CK_ATTRIBUTE_TYPE type);
extern void sftk_FreeAttribute(SFTKAttribute *attribute);
extern CK_RV sftk_AddAttributeType(SFTKObject *object, CK_ATTRIBUTE_TYPE type,
                                   const void *valPtr, CK_ULONG length);
extern CK_RV sftk_Attribute2SecItem(PLArenaPool *arena, SECItem *item,
                                    SFTKObject *object, CK_ATTRIBUTE_TYPE type);
extern CK_RV sftk_MultipleAttribute2SecItem(PLArenaPool *arena,
                                            SFTKObject *object,
                                            SFTKItemTemplate *templ, int count);
extern unsigned int sftk_GetLengthInBits(unsigned char *buf,
                                         unsigned int bufLen);
extern CK_RV sftk_ConstrainAttribute(SFTKObject *object,
                                     CK_ATTRIBUTE_TYPE type, int minLength,
                                     int maxLength, int minMultiple);
extern PRBool sftk_hasAttribute(SFTKObject *object, CK_ATTRIBUTE_TYPE type);
extern PRBool sftk_isTrue(SFTKObject *object, CK_ATTRIBUTE_TYPE type);
extern void sftk_DeleteAttributeType(SFTKObject *object,
                                     CK_ATTRIBUTE_TYPE type);
extern CK_RV sftk_Attribute2SecItem(PLArenaPool *arena, SECItem *item,
                                    SFTKObject *object, CK_ATTRIBUTE_TYPE type);
extern CK_RV sftk_Attribute2SSecItem(PLArenaPool *arena, SECItem *item,
                                     SFTKObject *object,
                                     CK_ATTRIBUTE_TYPE type);
extern SFTKModifyType sftk_modifyType(CK_ATTRIBUTE_TYPE type,
                                      CK_OBJECT_CLASS inClass);
extern PRBool sftk_isSensitive(CK_ATTRIBUTE_TYPE type, CK_OBJECT_CLASS inClass);
extern char *sftk_getString(SFTKObject *object, CK_ATTRIBUTE_TYPE type);
extern void sftk_nullAttribute(SFTKObject *object, CK_ATTRIBUTE_TYPE type);
extern CK_RV sftk_GetULongAttribute(SFTKObject *object, CK_ATTRIBUTE_TYPE type,
                                    CK_ULONG *longData);
extern CK_RV sftk_forceAttribute(SFTKObject *object, CK_ATTRIBUTE_TYPE type,
                                 const void *value, unsigned int len);
extern CK_RV sftk_defaultAttribute(SFTKObject *object, CK_ATTRIBUTE_TYPE type,
                                   const void *value, unsigned int len);
extern unsigned int sftk_MapTrust(CK_TRUST trust, PRBool clientAuth);

extern SFTKObject *sftk_NewObject(SFTKSlot *slot);
extern CK_RV sftk_CopyObject(SFTKObject *destObject, SFTKObject *srcObject);
extern SFTKFreeStatus sftk_FreeObject(SFTKObject *object);
extern CK_RV sftk_DeleteObject(SFTKSession *session, SFTKObject *object);
extern void sftk_ReferenceObject(SFTKObject *object);
extern SFTKObject *sftk_ObjectFromHandle(CK_OBJECT_HANDLE handle,
                                         SFTKSession *session);
extern void sftk_AddSlotObject(SFTKSlot *slot, SFTKObject *object);
extern void sftk_AddObject(SFTKSession *session, SFTKObject *object);
/* clear out all the existing object ID to database key mappings.
 * used to reinit a token */
extern CK_RV SFTK_ClearTokenKeyHashTable(SFTKSlot *slot);

extern CK_RV sftk_searchObjectList(SFTKSearchResults *search,
                                   SFTKObject **head, unsigned int size,
                                   PZLock *lock, CK_ATTRIBUTE_PTR inTemplate,
                                   int count, PRBool isLoggedIn);
extern SFTKObjectListElement *sftk_FreeObjectListElement(
    SFTKObjectListElement *objectList);
extern void sftk_FreeObjectList(SFTKObjectListElement *objectList);
extern void sftk_FreeSearch(SFTKSearchResults *search);
extern CK_RV sftk_handleObject(SFTKObject *object, SFTKSession *session);

extern SFTKSlot *sftk_SlotFromID(CK_SLOT_ID slotID, PRBool all);
extern SFTKSlot *sftk_SlotFromSessionHandle(CK_SESSION_HANDLE handle);
extern CK_SLOT_ID sftk_SlotIDFromSessionHandle(CK_SESSION_HANDLE handle);
extern SFTKSession *sftk_SessionFromHandle(CK_SESSION_HANDLE handle);
extern void sftk_FreeSession(SFTKSession *session);
extern void sftk_DestroySession(SFTKSession *session);
extern SFTKSession *sftk_NewSession(CK_SLOT_ID slotID, CK_NOTIFY notify,
                                    CK_VOID_PTR pApplication, CK_FLAGS flags);
extern void sftk_update_state(SFTKSlot *slot, SFTKSession *session);
extern void sftk_update_all_states(SFTKSlot *slot);
extern void sftk_FreeContext(SFTKSessionContext *context);
extern void sftk_InitFreeLists(void);
extern void sftk_CleanupFreeLists(void);

extern NSSLOWKEYPublicKey *sftk_GetPubKey(SFTKObject *object,
                                          CK_KEY_TYPE key_type, CK_RV *crvp);
extern NSSLOWKEYPrivateKey *sftk_GetPrivKey(SFTKObject *object,
                                            CK_KEY_TYPE key_type, CK_RV *crvp);
extern CK_RV sftk_PutPubKey(SFTKObject *publicKey, SFTKObject *privKey, CK_KEY_TYPE keyType,
                            NSSLOWKEYPublicKey *pubKey);
extern void sftk_FormatDESKey(unsigned char *key, int length);
extern PRBool sftk_CheckDESKey(unsigned char *key);
extern PRBool sftk_IsWeakKey(unsigned char *key, CK_KEY_TYPE key_type);

/* ike and xcbc helpers */
extern CK_RV sftk_ike_prf(CK_SESSION_HANDLE hSession,
                          const SFTKAttribute *inKey,
                          const CK_NSS_IKE_PRF_DERIVE_PARAMS *params, SFTKObject *outKey);
extern CK_RV sftk_ike1_prf(CK_SESSION_HANDLE hSession,
                           const SFTKAttribute *inKey,
                           const CK_NSS_IKE1_PRF_DERIVE_PARAMS *params, SFTKObject *outKey,
                           unsigned int keySize);
extern CK_RV sftk_ike1_appendix_b_prf(CK_SESSION_HANDLE hSession,
                                      const SFTKAttribute *inKey,
                                      const CK_MECHANISM_TYPE *params, SFTKObject *outKey,
                                      unsigned int keySize);
extern CK_RV sftk_ike_prf_plus(CK_SESSION_HANDLE hSession,
                               const SFTKAttribute *inKey,
                               const CK_NSS_IKE_PRF_PLUS_DERIVE_PARAMS *params, SFTKObject *outKey,
                               unsigned int keySize);
extern CK_RV sftk_aes_xcbc_new_keys(CK_SESSION_HANDLE hSession,
                                    CK_OBJECT_HANDLE hKey, CK_OBJECT_HANDLE_PTR phKey,
                                    unsigned char *k2, unsigned char *k3);
extern CK_RV sftk_xcbc_mac_pad(unsigned char *padBuf, unsigned int bufLen,
                               int blockSize, const unsigned char *k2,
                               const unsigned char *k3);
extern SECStatus sftk_fips_IKE_PowerUpSelfTests(void);

/* mechanism allows this operation */
extern CK_RV sftk_MechAllowsOperation(CK_MECHANISM_TYPE type, CK_ATTRIBUTE_TYPE op);

/* helper function which calls nsslowkey_FindKeyByPublicKey after safely
 * acquiring a reference to the keydb from the slot */
NSSLOWKEYPrivateKey *sftk_FindKeyByPublicKey(SFTKSlot *slot, SECItem *dbKey);

/*
 * parameter parsing functions
 */
CK_RV sftk_parseParameters(char *param, sftk_parameters *parsed, PRBool isFIPS);
void sftk_freeParams(sftk_parameters *params);

/*
 * narrow objects
 */
SFTKSessionObject *sftk_narrowToSessionObject(SFTKObject *);
SFTKTokenObject *sftk_narrowToTokenObject(SFTKObject *);

/*
 * token object utilities
 */
void sftk_addHandle(SFTKSearchResults *search, CK_OBJECT_HANDLE handle);
PRBool sftk_poisonHandle(SFTKSlot *slot, SECItem *dbkey,
                         CK_OBJECT_HANDLE handle);
SFTKObject *sftk_NewTokenObject(SFTKSlot *slot, SECItem *dbKey,
                                CK_OBJECT_HANDLE handle);
SFTKTokenObject *sftk_convertSessionToToken(SFTKObject *so);

/* J-PAKE (jpakesftk.c) */
extern CK_RV jpake_Round1(HASH_HashType hashType,
                          CK_NSS_JPAKERound1Params *params,
                          SFTKObject *key);
extern CK_RV jpake_Round2(HASH_HashType hashType,
                          CK_NSS_JPAKERound2Params *params,
                          SFTKObject *sourceKey, SFTKObject *key);
extern CK_RV jpake_Final(HASH_HashType hashType,
                         const CK_NSS_JPAKEFinalParams *params,
                         SFTKObject *sourceKey, SFTKObject *key);

/* Constant time MAC functions (hmacct.c) */
sftk_MACConstantTimeCtx *sftk_HMACConstantTime_New(
    CK_MECHANISM_PTR mech, SFTKObject *key);
sftk_MACConstantTimeCtx *sftk_SSLv3MACConstantTime_New(
    CK_MECHANISM_PTR mech, SFTKObject *key);
void sftk_HMACConstantTime_Update(void *pctx, const void *data, unsigned int len);
void sftk_SSLv3MACConstantTime_Update(void *pctx, const void *data, unsigned int len);
void sftk_MACConstantTime_EndHash(
    void *pctx, void *out, unsigned int *outLength, unsigned int maxLength);
void sftk_MACConstantTime_DestroyContext(void *pctx, PRBool);

/****************************************
 * implement TLS Pseudo Random Function (PRF)
 */

extern CK_RV
sftk_TLSPRFInit(SFTKSessionContext *context,
                SFTKObject *key,
                CK_KEY_TYPE key_type,
                HASH_HashType hash_alg,
                unsigned int out_len);

/* PKCS#11 MAC implementation. See sftk_MACCtxStr declaration above for
 * calling semantics for these functions. */
CK_RV sftk_MAC_Create(CK_MECHANISM_TYPE mech, SFTKObject *key, sftk_MACCtx **ret_ctx);
CK_RV sftk_MAC_Init(sftk_MACCtx *ctx, CK_MECHANISM_TYPE mech, SFTKObject *key);
CK_RV sftk_MAC_InitRaw(sftk_MACCtx *ctx, CK_MECHANISM_TYPE mech, const unsigned char *key, unsigned int key_len, PRBool isFIPS);
CK_RV sftk_MAC_Update(sftk_MACCtx *ctx, CK_BYTE_PTR data, unsigned int data_len);
CK_RV sftk_MAC_Finish(sftk_MACCtx *ctx, CK_BYTE_PTR result, unsigned int *result_len, unsigned int max_result_len);
CK_RV sftk_MAC_Reset(sftk_MACCtx *ctx);
void sftk_MAC_Destroy(sftk_MACCtx *ctx, PRBool free_it);

SEC_END_PROTOS

#endif /* _PKCS11I_H_ */