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diff --git a/src/lib/libcrypto/engine/hw_aep.c b/src/lib/libcrypto/engine/hw_aep.c
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1/* crypto/engine/hw_aep.c */
2/*
3 */
4/* ====================================================================
5 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
23 *
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
28 *
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
32 *
33 * 6. Redistributions of any form whatsoever must retain the following
34 * acknowledgment:
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
37 *
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
51 *
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
55 *
56 */
57
58#include <stdio.h>
59#include <openssl/bn.h>
60#include <string.h>
61
62#include <openssl/e_os2.h>
63#ifndef OPENSSL_SYS_MSDOS
64#include <sys/types.h>
65#include <unistd.h>
66#else
67#include <process.h>
68typedef int pid_t;
69#endif
70
71#include <openssl/crypto.h>
72#include <openssl/dso.h>
73#include <openssl/engine.h>
74
75#ifndef OPENSSL_NO_HW
76#ifndef OPENSSL_NO_HW_AEP
77#ifdef FLAT_INC
78#include "aep.h"
79#else
80#include "vendor_defns/aep.h"
81#endif
82
83#define AEP_LIB_NAME "aep engine"
84#define FAIL_TO_SW 0x10101010
85
86#include "hw_aep_err.c"
87
88static int aep_init(ENGINE *e);
89static int aep_finish(ENGINE *e);
90static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)());
91static int aep_destroy(ENGINE *e);
92
93static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR hConnection);
94static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection);
95static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection);
96static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use);
97
98/* BIGNUM stuff */
99static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
100 const BIGNUM *m, BN_CTX *ctx);
101
102static AEP_RV aep_mod_exp_crt(BIGNUM *r,const BIGNUM *a, const BIGNUM *p,
103 const BIGNUM *q, const BIGNUM *dmp1,const BIGNUM *dmq1,
104 const BIGNUM *iqmp, BN_CTX *ctx);
105
106/* RSA stuff */
107#ifndef OPENSSL_NO_RSA
108static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
109#endif
110
111/* This function is aliased to mod_exp (with the mont stuff dropped). */
112static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
113 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
114
115/* DSA stuff */
116#ifndef OPENSSL_NO_DSA
117static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
118 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
119 BN_CTX *ctx, BN_MONT_CTX *in_mont);
120
121static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
122 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
123 BN_MONT_CTX *m_ctx);
124#endif
125
126/* DH stuff */
127/* This function is aliased to mod_exp (with the DH and mont dropped). */
128#ifndef OPENSSL_NO_DH
129static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
130 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
131#endif
132
133/* rand stuff */
134#ifdef AEPRAND
135static int aep_rand(unsigned char *buf, int num);
136static int aep_rand_status(void);
137#endif
138
139/* Bignum conversion stuff */
140static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize);
141static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
142 unsigned char* AEP_BigNum);
143static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
144 unsigned char* AEP_BigNum);
145
146/* The definitions for control commands specific to this engine */
147#define AEP_CMD_SO_PATH ENGINE_CMD_BASE
148static const ENGINE_CMD_DEFN aep_cmd_defns[] =
149 {
150 { AEP_CMD_SO_PATH,
151 "SO_PATH",
152 "Specifies the path to the 'aep' shared library",
153 ENGINE_CMD_FLAG_STRING
154 },
155 {0, NULL, NULL, 0}
156 };
157
158#ifndef OPENSSL_NO_RSA
159/* Our internal RSA_METHOD that we provide pointers to */
160static RSA_METHOD aep_rsa =
161 {
162 "Aep RSA method",
163 NULL, /*rsa_pub_encrypt*/
164 NULL, /*rsa_pub_decrypt*/
165 NULL, /*rsa_priv_encrypt*/
166 NULL, /*rsa_priv_encrypt*/
167 aep_rsa_mod_exp, /*rsa_mod_exp*/
168 aep_mod_exp_mont, /*bn_mod_exp*/
169 NULL, /*init*/
170 NULL, /*finish*/
171 0, /*flags*/
172 NULL, /*app_data*/
173 NULL, /*rsa_sign*/
174 NULL /*rsa_verify*/
175 };
176#endif
177
178#ifndef OPENSSL_NO_DSA
179/* Our internal DSA_METHOD that we provide pointers to */
180static DSA_METHOD aep_dsa =
181 {
182 "Aep DSA method",
183 NULL, /* dsa_do_sign */
184 NULL, /* dsa_sign_setup */
185 NULL, /* dsa_do_verify */
186 aep_dsa_mod_exp, /* dsa_mod_exp */
187 aep_mod_exp_dsa, /* bn_mod_exp */
188 NULL, /* init */
189 NULL, /* finish */
190 0, /* flags */
191 NULL /* app_data */
192 };
193#endif
194
195#ifndef OPENSSL_NO_DH
196/* Our internal DH_METHOD that we provide pointers to */
197static DH_METHOD aep_dh =
198 {
199 "Aep DH method",
200 NULL,
201 NULL,
202 aep_mod_exp_dh,
203 NULL,
204 NULL,
205 0,
206 NULL
207 };
208#endif
209
210#ifdef AEPRAND
211/* our internal RAND_method that we provide pointers to */
212static RAND_METHOD aep_random =
213 {
214 /*"AEP RAND method", */
215 NULL,
216 aep_rand,
217 NULL,
218 NULL,
219 aep_rand,
220 aep_rand_status,
221 };
222#endif
223
224/*Define an array of structures to hold connections*/
225static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
226
227/*Used to determine if this is a new process*/
228static pid_t recorded_pid = 0;
229
230#ifdef AEPRAND
231static AEP_U8 rand_block[RAND_BLK_SIZE];
232static AEP_U32 rand_block_bytes = 0;
233#endif
234
235/* Constants used when creating the ENGINE */
236static const char *engine_aep_id = "aep";
237static const char *engine_aep_name = "Aep hardware engine support";
238
239static int max_key_len = 2176;
240
241
242/* This internal function is used by ENGINE_aep() and possibly by the
243 * "dynamic" ENGINE support too */
244static int bind_aep(ENGINE *e)
245 {
246#ifndef OPENSSL_NO_RSA
247 const RSA_METHOD *meth1;
248#endif
249#ifndef OPENSSL_NO_DSA
250 const DSA_METHOD *meth2;
251#endif
252#ifndef OPENSSL_NO_DH
253 const DH_METHOD *meth3;
254#endif
255
256 if(!ENGINE_set_id(e, engine_aep_id) ||
257 !ENGINE_set_name(e, engine_aep_name) ||
258#ifndef OPENSSL_NO_RSA
259 !ENGINE_set_RSA(e, &aep_rsa) ||
260#endif
261#ifndef OPENSSL_NO_DSA
262 !ENGINE_set_DSA(e, &aep_dsa) ||
263#endif
264#ifndef OPENSSL_NO_DH
265 !ENGINE_set_DH(e, &aep_dh) ||
266#endif
267#ifdef AEPRAND
268 !ENGINE_set_RAND(e, &aep_random) ||
269#endif
270 !ENGINE_set_init_function(e, aep_init) ||
271 !ENGINE_set_destroy_function(e, aep_destroy) ||
272 !ENGINE_set_finish_function(e, aep_finish) ||
273 !ENGINE_set_ctrl_function(e, aep_ctrl) ||
274 !ENGINE_set_cmd_defns(e, aep_cmd_defns))
275 return 0;
276
277#ifndef OPENSSL_NO_RSA
278 /* We know that the "PKCS1_SSLeay()" functions hook properly
279 * to the aep-specific mod_exp and mod_exp_crt so we use
280 * those functions. NB: We don't use ENGINE_openssl() or
281 * anything "more generic" because something like the RSAref
282 * code may not hook properly, and if you own one of these
283 * cards then you have the right to do RSA operations on it
284 * anyway! */
285 meth1 = RSA_PKCS1_SSLeay();
286 aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
287 aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
288 aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
289 aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
290#endif
291
292
293#ifndef OPENSSL_NO_DSA
294 /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
295 * bits. */
296 meth2 = DSA_OpenSSL();
297 aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
298 aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
299 aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
300
301 aep_dsa = *DSA_get_default_method();
302 aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
303 aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
304#endif
305
306#ifndef OPENSSL_NO_DH
307 /* Much the same for Diffie-Hellman */
308 meth3 = DH_OpenSSL();
309 aep_dh.generate_key = meth3->generate_key;
310 aep_dh.compute_key = meth3->compute_key;
311 aep_dh.bn_mod_exp = meth3->bn_mod_exp;
312#endif
313
314 /* Ensure the aep error handling is set up */
315 ERR_load_AEPHK_strings();
316
317 return 1;
318}
319
320#ifdef ENGINE_DYNAMIC_SUPPORT
321static int bind_helper(ENGINE *e, const char *id)
322 {
323 if(id && (strcmp(id, engine_aep_id) != 0))
324 return 0;
325 if(!bind_aep(e))
326 return 0;
327 return 1;
328 }
329IMPLEMENT_DYNAMIC_CHECK_FN()
330IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
331#else
332static ENGINE *engine_aep(void)
333 {
334 ENGINE *ret = ENGINE_new();
335 if(!ret)
336 return NULL;
337 if(!bind_aep(ret))
338 {
339 ENGINE_free(ret);
340 return NULL;
341 }
342 return ret;
343 }
344
345void ENGINE_load_aep(void)
346 {
347 /* Copied from eng_[openssl|dyn].c */
348 ENGINE *toadd = engine_aep();
349 if(!toadd) return;
350 ENGINE_add(toadd);
351 ENGINE_free(toadd);
352 ERR_clear_error();
353 }
354#endif
355
356/* This is a process-global DSO handle used for loading and unloading
357 * the Aep library. NB: This is only set (or unset) during an
358 * init() or finish() call (reference counts permitting) and they're
359 * operating with global locks, so this should be thread-safe
360 * implicitly. */
361static DSO *aep_dso = NULL;
362
363/* These are the static string constants for the DSO file name and the function
364 * symbol names to bind to.
365*/
366static const char *AEP_LIBNAME = "aep";
367
368static const char *AEP_F1 = "AEP_ModExp";
369static const char *AEP_F2 = "AEP_ModExpCrt";
370#ifdef AEPRAND
371static const char *AEP_F3 = "AEP_GenRandom";
372#endif
373static const char *AEP_F4 = "AEP_Finalize";
374static const char *AEP_F5 = "AEP_Initialize";
375static const char *AEP_F6 = "AEP_OpenConnection";
376static const char *AEP_F7 = "AEP_SetBNCallBacks";
377static const char *AEP_F8 = "AEP_CloseConnection";
378
379/* These are the function pointers that are (un)set when the library has
380 * successfully (un)loaded. */
381static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
382static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
383static t_AEP_ModExp *p_AEP_ModExp = NULL;
384static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
385#ifdef AEPRAND
386static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
387#endif
388static t_AEP_Initialize *p_AEP_Initialize = NULL;
389static t_AEP_Finalize *p_AEP_Finalize = NULL;
390static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
391
392/* (de)initialisation functions. */
393static int aep_init(ENGINE *e)
394 {
395 t_AEP_ModExp *p1;
396 t_AEP_ModExpCrt *p2;
397#ifdef AEPRAND
398 t_AEP_GenRandom *p3;
399#endif
400 t_AEP_Finalize *p4;
401 t_AEP_Initialize *p5;
402 t_AEP_OpenConnection *p6;
403 t_AEP_SetBNCallBacks *p7;
404 t_AEP_CloseConnection *p8;
405
406 int to_return = 0;
407
408 if(aep_dso != NULL)
409 {
410 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_ALREADY_LOADED);
411 goto err;
412 }
413 /* Attempt to load libaep.so. */
414
415 aep_dso = DSO_load(NULL, AEP_LIBNAME, NULL, 0);
416
417 if(aep_dso == NULL)
418 {
419 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
420 goto err;
421 }
422
423 if( !(p1 = (t_AEP_ModExp *) DSO_bind_func( aep_dso,AEP_F1)) ||
424 !(p2 = (t_AEP_ModExpCrt*) DSO_bind_func( aep_dso,AEP_F2)) ||
425#ifdef AEPRAND
426 !(p3 = (t_AEP_GenRandom*) DSO_bind_func( aep_dso,AEP_F3)) ||
427#endif
428 !(p4 = (t_AEP_Finalize*) DSO_bind_func( aep_dso,AEP_F4)) ||
429 !(p5 = (t_AEP_Initialize*) DSO_bind_func( aep_dso,AEP_F5)) ||
430 !(p6 = (t_AEP_OpenConnection*) DSO_bind_func( aep_dso,AEP_F6)) ||
431 !(p7 = (t_AEP_SetBNCallBacks*) DSO_bind_func( aep_dso,AEP_F7)) ||
432 !(p8 = (t_AEP_CloseConnection*) DSO_bind_func( aep_dso,AEP_F8)))
433 {
434 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
435 goto err;
436 }
437
438 /* Copy the pointers */
439
440 p_AEP_ModExp = p1;
441 p_AEP_ModExpCrt = p2;
442#ifdef AEPRAND
443 p_AEP_GenRandom = p3;
444#endif
445 p_AEP_Finalize = p4;
446 p_AEP_Initialize = p5;
447 p_AEP_OpenConnection = p6;
448 p_AEP_SetBNCallBacks = p7;
449 p_AEP_CloseConnection = p8;
450
451 to_return = 1;
452
453 return to_return;
454
455 err:
456
457 if(aep_dso)
458 DSO_free(aep_dso);
459
460 p_AEP_OpenConnection = NULL;
461 p_AEP_ModExp = NULL;
462 p_AEP_ModExpCrt = NULL;
463#ifdef AEPRAND
464 p_AEP_GenRandom = NULL;
465#endif
466 p_AEP_Initialize = NULL;
467 p_AEP_Finalize = NULL;
468 p_AEP_SetBNCallBacks = NULL;
469 p_AEP_CloseConnection = NULL;
470
471 return to_return;
472 }
473
474/* Destructor (complements the "ENGINE_aep()" constructor) */
475static int aep_destroy(ENGINE *e)
476 {
477 ERR_unload_AEPHK_strings();
478 return 1;
479 }
480
481static int aep_finish(ENGINE *e)
482 {
483 int to_return = 0, in_use;
484 AEP_RV rv;
485
486 if(aep_dso == NULL)
487 {
488 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_NOT_LOADED);
489 goto err;
490 }
491
492 rv = aep_close_all_connections(0, &in_use);
493 if (rv != AEP_R_OK)
494 {
495 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CLOSE_HANDLES_FAILED);
496 goto err;
497 }
498 if (in_use)
499 {
500 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CONNECTIONS_IN_USE);
501 goto err;
502 }
503
504 rv = p_AEP_Finalize();
505 if (rv != AEP_R_OK)
506 {
507 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_FINALIZE_FAILED);
508 goto err;
509 }
510
511 if(!DSO_free(aep_dso))
512 {
513 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_UNIT_FAILURE);
514 goto err;
515 }
516
517 aep_dso = NULL;
518 p_AEP_CloseConnection = NULL;
519 p_AEP_OpenConnection = NULL;
520 p_AEP_ModExp = NULL;
521 p_AEP_ModExpCrt = NULL;
522#ifdef AEPRAND
523 p_AEP_GenRandom = NULL;
524#endif
525 p_AEP_Initialize = NULL;
526 p_AEP_Finalize = NULL;
527 p_AEP_SetBNCallBacks = NULL;
528
529 to_return = 1;
530 err:
531 return to_return;
532 }
533
534static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)())
535 {
536 int initialised = ((aep_dso == NULL) ? 0 : 1);
537 switch(cmd)
538 {
539 case AEP_CMD_SO_PATH:
540 if(p == NULL)
541 {
542 AEPHKerr(AEPHK_F_AEP_CTRL,
543 ERR_R_PASSED_NULL_PARAMETER);
544 return 0;
545 }
546 if(initialised)
547 {
548 AEPHKerr(AEPHK_F_AEP_CTRL,
549 AEPHK_R_ALREADY_LOADED);
550 return 0;
551 }
552 AEP_LIBNAME = (const char *)p;
553 return 1;
554 default:
555 break;
556 }
557 AEPHKerr(AEPHK_F_AEP_CTRL,AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
558 return 0;
559 }
560
561static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
562 const BIGNUM *m, BN_CTX *ctx)
563 {
564 int to_return = 0;
565 int r_len = 0;
566 AEP_CONNECTION_HNDL hConnection;
567 AEP_RV rv;
568
569 r_len = BN_num_bits(m);
570
571 /* Perform in software if modulus is too large for hardware. */
572
573 if (r_len > max_key_len){
574 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
575 return BN_mod_exp(r, a, p, m, ctx);
576 }
577
578 /*Grab a connection from the pool*/
579 rv = aep_get_connection(&hConnection);
580 if (rv != AEP_R_OK)
581 {
582 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_GET_HANDLE_FAILED);
583 return BN_mod_exp(r, a, p, m, ctx);
584 }
585
586 /*To the card with the mod exp*/
587 rv = p_AEP_ModExp(hConnection,(void*)a, (void*)p,(void*)m, (void*)r,NULL);
588
589 if (rv != AEP_R_OK)
590 {
591 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_MOD_EXP_FAILED);
592 rv = aep_close_connection(hConnection);
593 return BN_mod_exp(r, a, p, m, ctx);
594 }
595
596 /*Return the connection to the pool*/
597 rv = aep_return_connection(hConnection);
598 if (rv != AEP_R_OK)
599 {
600 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_RETURN_CONNECTION_FAILED);
601 goto err;
602 }
603
604 to_return = 1;
605 err:
606 return to_return;
607 }
608
609static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
610 const BIGNUM *q, const BIGNUM *dmp1,
611 const BIGNUM *dmq1,const BIGNUM *iqmp, BN_CTX *ctx)
612 {
613 AEP_RV rv = AEP_R_OK;
614 AEP_CONNECTION_HNDL hConnection;
615
616 /*Grab a connection from the pool*/
617 rv = aep_get_connection(&hConnection);
618 if (rv != AEP_R_OK)
619 {
620 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_GET_HANDLE_FAILED);
621 return FAIL_TO_SW;
622 }
623
624 /*To the card with the mod exp*/
625 rv = p_AEP_ModExpCrt(hConnection,(void*)a, (void*)p, (void*)q, (void*)dmp1,(void*)dmq1,
626 (void*)iqmp,(void*)r,NULL);
627 if (rv != AEP_R_OK)
628 {
629 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_MOD_EXP_CRT_FAILED);
630 rv = aep_close_connection(hConnection);
631 return FAIL_TO_SW;
632 }
633
634 /*Return the connection to the pool*/
635 rv = aep_return_connection(hConnection);
636 if (rv != AEP_R_OK)
637 {
638 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_RETURN_CONNECTION_FAILED);
639 goto err;
640 }
641
642 err:
643 return rv;
644 }
645
646
647#ifdef AEPRAND
648static int aep_rand(unsigned char *buf,int len )
649 {
650 AEP_RV rv = AEP_R_OK;
651 AEP_CONNECTION_HNDL hConnection;
652
653 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
654
655 /*Can the request be serviced with what's already in the buffer?*/
656 if (len <= rand_block_bytes)
657 {
658 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
659 rand_block_bytes -= len;
660 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
661 }
662 else
663 /*If not the get another block of random bytes*/
664 {
665 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
666
667 rv = aep_get_connection(&hConnection);
668 if (rv != AEP_R_OK)
669 {
670 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_HANDLE_FAILED);
671 goto err_nounlock;
672 }
673
674 if (len > RAND_BLK_SIZE)
675 {
676 rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
677 if (rv != AEP_R_OK)
678 {
679 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
680 goto err_nounlock;
681 }
682 }
683 else
684 {
685 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
686
687 rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2, &rand_block[0], NULL);
688 if (rv != AEP_R_OK)
689 {
690 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
691
692 goto err;
693 }
694
695 rand_block_bytes = RAND_BLK_SIZE;
696
697 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
698 rand_block_bytes -= len;
699
700 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
701 }
702
703 rv = aep_return_connection(hConnection);
704 if (rv != AEP_R_OK)
705 {
706 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_RETURN_CONNECTION_FAILED);
707
708 goto err_nounlock;
709 }
710 }
711
712 return 1;
713 err:
714 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
715 err_nounlock:
716 return 0;
717 }
718
719static int aep_rand_status(void)
720{
721 return 1;
722}
723#endif
724
725#ifndef OPENSSL_NO_RSA
726static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
727 {
728 BN_CTX *ctx = NULL;
729 int to_return = 0;
730 AEP_RV rv = AEP_R_OK;
731
732 if ((ctx = BN_CTX_new()) == NULL)
733 goto err;
734
735 if (!aep_dso)
736 {
737 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_NOT_LOADED);
738 goto err;
739 }
740
741 /*See if we have all the necessary bits for a crt*/
742 if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp)
743 {
744 rv = aep_mod_exp_crt(r0,I,rsa->p,rsa->q, rsa->dmp1,rsa->dmq1,rsa->iqmp,ctx);
745
746 if (rv == FAIL_TO_SW){
747 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
748 to_return = (*meth->rsa_mod_exp)(r0, I, rsa);
749 goto err;
750 }
751 else if (rv != AEP_R_OK)
752 goto err;
753 }
754 else
755 {
756 if (!rsa->d || !rsa->n)
757 {
758 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_MISSING_KEY_COMPONENTS);
759 goto err;
760 }
761
762 rv = aep_mod_exp(r0,I,rsa->d,rsa->n,ctx);
763 if (rv != AEP_R_OK)
764 goto err;
765
766 }
767
768 to_return = 1;
769
770 err:
771 if(ctx)
772 BN_CTX_free(ctx);
773 return to_return;
774}
775#endif
776
777#ifndef OPENSSL_NO_DSA
778static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
779 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
780 BN_CTX *ctx, BN_MONT_CTX *in_mont)
781 {
782 BIGNUM t;
783 int to_return = 0;
784 BN_init(&t);
785
786 /* let rr = a1 ^ p1 mod m */
787 if (!aep_mod_exp(rr,a1,p1,m,ctx)) goto end;
788 /* let t = a2 ^ p2 mod m */
789 if (!aep_mod_exp(&t,a2,p2,m,ctx)) goto end;
790 /* let rr = rr * t mod m */
791 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
792 to_return = 1;
793 end:
794 BN_free(&t);
795 return to_return;
796 }
797
798static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
799 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
800 BN_MONT_CTX *m_ctx)
801 {
802 return aep_mod_exp(r, a, p, m, ctx);
803 }
804#endif
805
806/* This function is aliased to mod_exp (with the mont stuff dropped). */
807static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
808 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
809 {
810 return aep_mod_exp(r, a, p, m, ctx);
811 }
812
813#ifndef OPENSSL_NO_DH
814/* This function is aliased to mod_exp (with the dh and mont dropped). */
815static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
816 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
817 BN_MONT_CTX *m_ctx)
818 {
819 return aep_mod_exp(r, a, p, m, ctx);
820 }
821#endif
822
823static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
824 {
825 int count;
826 AEP_RV rv = AEP_R_OK;
827
828 /*Get the current process id*/
829 pid_t curr_pid;
830
831 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
832
833 curr_pid = getpid();
834
835 /*Check if this is the first time this is being called from the current
836 process*/
837 if (recorded_pid != curr_pid)
838 {
839 /*Remember our pid so we can check if we're in a new process*/
840 recorded_pid = curr_pid;
841
842 /*Call Finalize to make sure we have not inherited some data
843 from a parent process*/
844 p_AEP_Finalize();
845
846 /*Initialise the AEP API*/
847 rv = p_AEP_Initialize(NULL);
848
849 if (rv != AEP_R_OK)
850 {
851 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_INIT_FAILURE);
852 recorded_pid = 0;
853 goto end;
854 }
855
856 /*Set the AEP big num call back functions*/
857 rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
858 &ConvertAEPBigNum);
859
860 if (rv != AEP_R_OK)
861 {
862 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_SETBNCALLBACK_FAILURE);
863 recorded_pid = 0;
864 goto end;
865 }
866
867#ifdef AEPRAND
868 /*Reset the rand byte count*/
869 rand_block_bytes = 0;
870#endif
871
872 /*Init the structures*/
873 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
874 {
875 aep_app_conn_table[count].conn_state = NotConnected;
876 aep_app_conn_table[count].conn_hndl = 0;
877 }
878
879 /*Open a connection*/
880 rv = p_AEP_OpenConnection(phConnection);
881
882 if (rv != AEP_R_OK)
883 {
884 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
885 recorded_pid = 0;
886 goto end;
887 }
888
889 aep_app_conn_table[0].conn_state = InUse;
890 aep_app_conn_table[0].conn_hndl = *phConnection;
891 goto end;
892 }
893 /*Check the existing connections to see if we can find a free one*/
894 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
895 {
896 if (aep_app_conn_table[count].conn_state == Connected)
897 {
898 aep_app_conn_table[count].conn_state = InUse;
899 *phConnection = aep_app_conn_table[count].conn_hndl;
900 goto end;
901 }
902 }
903 /*If no connections available, we're going to have to try
904 to open a new one*/
905 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
906 {
907 if (aep_app_conn_table[count].conn_state == NotConnected)
908 {
909 /*Open a connection*/
910 rv = p_AEP_OpenConnection(phConnection);
911
912 if (rv != AEP_R_OK)
913 {
914 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
915 goto end;
916 }
917
918 aep_app_conn_table[count].conn_state = InUse;
919 aep_app_conn_table[count].conn_hndl = *phConnection;
920 goto end;
921 }
922 }
923 rv = AEP_R_GENERAL_ERROR;
924 end:
925 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
926 return rv;
927 }
928
929
930static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
931 {
932 int count;
933
934 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
935
936 /*Find the connection item that matches this connection handle*/
937 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
938 {
939 if (aep_app_conn_table[count].conn_hndl == hConnection)
940 {
941 aep_app_conn_table[count].conn_state = Connected;
942 break;
943 }
944 }
945
946 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
947
948 return AEP_R_OK;
949 }
950
951static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
952 {
953 int count;
954 AEP_RV rv = AEP_R_OK;
955
956 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
957
958 /*Find the connection item that matches this connection handle*/
959 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
960 {
961 if (aep_app_conn_table[count].conn_hndl == hConnection)
962 {
963 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
964 if (rv != AEP_R_OK)
965 goto end;
966 aep_app_conn_table[count].conn_state = NotConnected;
967 aep_app_conn_table[count].conn_hndl = 0;
968 break;
969 }
970 }
971
972 end:
973 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
974 return rv;
975 }
976
977static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
978 {
979 int count;
980 AEP_RV rv = AEP_R_OK;
981
982 *in_use = 0;
983 if (use_engine_lock) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
984 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
985 {
986 switch (aep_app_conn_table[count].conn_state)
987 {
988 case Connected:
989 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
990 if (rv != AEP_R_OK)
991 goto end;
992 aep_app_conn_table[count].conn_state = NotConnected;
993 aep_app_conn_table[count].conn_hndl = 0;
994 break;
995 case InUse:
996 (*in_use)++;
997 break;
998 case NotConnected:
999 break;
1000 }
1001 }
1002 end:
1003 if (use_engine_lock) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1004 return rv;
1005 }
1006
1007/*BigNum call back functions, used to convert OpenSSL bignums into AEP bignums.
1008 Note only 32bit Openssl build support*/
1009
1010static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize)
1011 {
1012 BIGNUM* bn;
1013
1014 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1015 bn = (BIGNUM*) ArbBigNum;
1016
1017#ifdef SIXTY_FOUR_BIT_LONG
1018 *BigNumSize = bn->top << 3;
1019#else
1020 /*Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1021 words) multiplies by 4*/
1022 *BigNumSize = bn->top << 2;
1023#endif
1024
1025 return AEP_R_OK;
1026 }
1027
1028static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
1029 unsigned char* AEP_BigNum)
1030 {
1031 BIGNUM* bn;
1032
1033#ifndef SIXTY_FOUR_BIT_LONG
1034 unsigned char* buf;
1035 int i;
1036#endif
1037
1038 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1039 bn = (BIGNUM*) ArbBigNum;
1040
1041#ifdef SIXTY_FOUR_BIT_LONG
1042 memcpy(AEP_BigNum, bn->d, BigNumSize);
1043#else
1044 /*Must copy data into a (monotone) least significant byte first format
1045 performing endian conversion if necessary*/
1046 for(i=0;i<bn->top;i++)
1047 {
1048 buf = (unsigned char*)&bn->d[i];
1049
1050 *((AEP_U32*)AEP_BigNum) = (AEP_U32)
1051 ((unsigned) buf[1] << 8 | buf[0]) |
1052 ((unsigned) buf[3] << 8 | buf[2]) << 16;
1053
1054 AEP_BigNum += 4;
1055 }
1056#endif
1057
1058 return AEP_R_OK;
1059 }
1060
1061/*Turn an AEP Big Num back to a user big num*/
1062static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
1063 unsigned char* AEP_BigNum)
1064 {
1065 BIGNUM* bn;
1066#ifndef SIXTY_FOUR_BIT_LONG
1067 int i;
1068#endif
1069
1070 bn = (BIGNUM*)ArbBigNum;
1071
1072 /*Expand the result bn so that it can hold our big num.
1073 Size is in bits*/
1074 bn_expand(bn, (int)(BigNumSize << 3));
1075
1076#ifdef SIXTY_FOUR_BIT_LONG
1077 bn->top = BigNumSize >> 3;
1078
1079 if((BigNumSize & 7) != 0)
1080 bn->top++;
1081
1082 memset(bn->d, 0, bn->top << 3);
1083
1084 memcpy(bn->d, AEP_BigNum, BigNumSize);
1085#else
1086 bn->top = BigNumSize >> 2;
1087
1088 for(i=0;i<bn->top;i++)
1089 {
1090 bn->d[i] = (AEP_U32)
1091 ((unsigned) AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
1092 ((unsigned) AEP_BigNum[1] << 8 | AEP_BigNum[0]);
1093 AEP_BigNum += 4;
1094 }
1095#endif
1096
1097 return AEP_R_OK;
1098}
1099
1100#endif /* !OPENSSL_NO_HW_AEP */
1101#endif /* !OPENSSL_NO_HW */
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-26 12:01:06 +0000