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Add initial support for mingw64.
[thirdparty/openssl.git] / engines / e_aep.c
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5572f482
RL		 1/* ====================================================================
2 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
14 * distribution.
15 *
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
20 *
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * licensing@OpenSSL.org.
25 *
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
29 *
30 * 6. Redistributions of any form whatsoever must retain the following
31 * acknowledgment:
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This product includes cryptographic software written by Eric Young
50 * (eay@cryptsoft.com). This product includes software written by Tim
51 * Hudson (tjh@cryptsoft.com).
52 *
53 */
54
55#include <stdio.h>
56#include <openssl/bn.h>
57#include <string.h>
58
59#include <openssl/e_os2.h>
9be54812 60#if !defined(OPENSSL_SYS_MSDOS) || defined(__DJGPP__) || defined(__MINGW32__)
5572f482
RL		 61#include <sys/types.h>
62#include <unistd.h>
63#else
64#include <process.h>
65typedef int pid_t;
66#endif
67
eef0c1f3
DSH		 68#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
69#define getpid GetThreadID
70extern int GetThreadID(void);
71#endif
72
5572f482
RL		 73#include <openssl/crypto.h>
74#include <openssl/dso.h>
75#include <openssl/engine.h>
76#include <openssl/buffer.h>
3eeaab4b 77#ifndef OPENSSL_NO_RSA
3a87a9b9 78#include <openssl/rsa.h>
3eeaab4b
NL		 79#endif
80#ifndef OPENSSL_NO_DSA
3a87a9b9 81#include <openssl/dsa.h>
3eeaab4b
NL		 82#endif
83#ifndef OPENSSL_NO_DH
28ded31b 84#include <openssl/dh.h>
3eeaab4b 85#endif
f15390bd 86#include <openssl/bn.h>
5572f482
RL		 87
88#ifndef OPENSSL_NO_HW
89#ifndef OPENSSL_NO_HW_AEP
90#ifdef FLAT_INC
91#include "aep.h"
92#else
93#include "vendor_defns/aep.h"
94#endif
95
96#define AEP_LIB_NAME "aep engine"
97#define FAIL_TO_SW 0x10101010
98
665dc392 99#include "e_aep_err.c"
5572f482
RL		 100
101static int aep_init(ENGINE *e);
102static int aep_finish(ENGINE *e);
a99ce1a5 103static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
5572f482
RL		 104static int aep_destroy(ENGINE *e);
105
106static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR hConnection);
107static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection);
108static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection);
109static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use);
110
111/* BIGNUM stuff */
3eeaab4b 112#ifndef OPENSSL_NO_RSA
5572f482
RL		 113static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
114 const BIGNUM *m, BN_CTX *ctx);
115
116static AEP_RV aep_mod_exp_crt(BIGNUM *r,const BIGNUM *a, const BIGNUM *p,
117 const BIGNUM *q, const BIGNUM *dmp1,const BIGNUM *dmq1,
118 const BIGNUM *iqmp, BN_CTX *ctx);
3eeaab4b 119#endif
5572f482
RL		 120
121/* RSA stuff */
122#ifndef OPENSSL_NO_RSA
46ef873f 123static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
5572f482
RL		 124#endif
125
126/* This function is aliased to mod_exp (with the mont stuff dropped). */
3eeaab4b 127#ifndef OPENSSL_NO_RSA
5572f482
RL		 128static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
129 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
3eeaab4b 130#endif
5572f482
RL		 131
132/* DSA stuff */
133#ifndef OPENSSL_NO_DSA
134static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
135 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
136 BN_CTX *ctx, BN_MONT_CTX *in_mont);
137
138static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
139 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
140 BN_MONT_CTX *m_ctx);
141#endif
142
143/* DH stuff */
144/* This function is aliased to mod_exp (with the DH and mont dropped). */
145#ifndef OPENSSL_NO_DH
146static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
147 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
148#endif
149
150/* rand stuff */
151#ifdef AEPRAND
152static int aep_rand(unsigned char *buf, int num);
153static int aep_rand_status(void);
154#endif
155
156/* Bignum conversion stuff */
157static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize);
158static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
159 unsigned char* AEP_BigNum);
160static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
161 unsigned char* AEP_BigNum);
162
163/* The definitions for control commands specific to this engine */
164#define AEP_CMD_SO_PATH ENGINE_CMD_BASE
165static const ENGINE_CMD_DEFN aep_cmd_defns[] =
166 {
167 { AEP_CMD_SO_PATH,
168 "SO_PATH",
169 "Specifies the path to the 'aep' shared library",
170 ENGINE_CMD_FLAG_STRING
171 },
172 {0, NULL, NULL, 0}
173 };
174
175#ifndef OPENSSL_NO_RSA
176/* Our internal RSA_METHOD that we provide pointers to */
177static RSA_METHOD aep_rsa =
178 {
179 "Aep RSA method",
180 NULL, /*rsa_pub_encrypt*/
181 NULL, /*rsa_pub_decrypt*/
182 NULL, /*rsa_priv_encrypt*/
183 NULL, /*rsa_priv_encrypt*/
184 aep_rsa_mod_exp, /*rsa_mod_exp*/
185 aep_mod_exp_mont, /*bn_mod_exp*/
186 NULL, /*init*/
187 NULL, /*finish*/
188 0, /*flags*/
189 NULL, /*app_data*/
190 NULL, /*rsa_sign*/
4ebb5293
GT		 191 NULL, /*rsa_verify*/
192 NULL /*rsa_keygen*/
5572f482
RL		 193 };
194#endif
195
196#ifndef OPENSSL_NO_DSA
197/* Our internal DSA_METHOD that we provide pointers to */
198static DSA_METHOD aep_dsa =
199 {
200 "Aep DSA method",
201 NULL, /* dsa_do_sign */
202 NULL, /* dsa_sign_setup */
203 NULL, /* dsa_do_verify */
204 aep_dsa_mod_exp, /* dsa_mod_exp */
205 aep_mod_exp_dsa, /* bn_mod_exp */
206 NULL, /* init */
207 NULL, /* finish */
208 0, /* flags */
0e4aa0d2
GT		 209 NULL, /* app_data */
210 NULL, /* dsa_paramgen */
211 NULL /* dsa_keygen */
5572f482
RL		 212 };
213#endif
214
215#ifndef OPENSSL_NO_DH
216/* Our internal DH_METHOD that we provide pointers to */
217static DH_METHOD aep_dh =
218 {
219 "Aep DH method",
220 NULL,
221 NULL,
222 aep_mod_exp_dh,
223 NULL,
224 NULL,
225 0,
0e4aa0d2 226 NULL,
5572f482
RL		 227 NULL
228 };
229#endif
230
231#ifdef AEPRAND
232/* our internal RAND_method that we provide pointers to */
233static RAND_METHOD aep_random =
234 {
235 /*"AEP RAND method", */
236 NULL,
237 aep_rand,
238 NULL,
239 NULL,
240 aep_rand,
241 aep_rand_status,
242 };
243#endif
244
245/*Define an array of structures to hold connections*/
246static AEP_CONNECTION_ENTRY aep_app_conn_table[MAX_PROCESS_CONNECTIONS];
247
248/*Used to determine if this is a new process*/
249static pid_t recorded_pid = 0;
250
251#ifdef AEPRAND
252static AEP_U8 rand_block[RAND_BLK_SIZE];
253static AEP_U32 rand_block_bytes = 0;
254#endif
255
256/* Constants used when creating the ENGINE */
257static const char *engine_aep_id = "aep";
258static const char *engine_aep_name = "Aep hardware engine support";
259
260static int max_key_len = 2176;
261
262
263/* This internal function is used by ENGINE_aep() and possibly by the
264 * "dynamic" ENGINE support too */
265static int bind_aep(ENGINE *e)
266 {
267#ifndef OPENSSL_NO_RSA
268 const RSA_METHOD *meth1;
269#endif
270#ifndef OPENSSL_NO_DSA
271 const DSA_METHOD *meth2;
272#endif
273#ifndef OPENSSL_NO_DH
274 const DH_METHOD *meth3;
275#endif
276
277 if(!ENGINE_set_id(e, engine_aep_id) ||
278 !ENGINE_set_name(e, engine_aep_name) ||
279#ifndef OPENSSL_NO_RSA
280 !ENGINE_set_RSA(e, &aep_rsa) ||
281#endif
282#ifndef OPENSSL_NO_DSA
283 !ENGINE_set_DSA(e, &aep_dsa) ||
284#endif
285#ifndef OPENSSL_NO_DH
286 !ENGINE_set_DH(e, &aep_dh) ||
287#endif
288#ifdef AEPRAND
289 !ENGINE_set_RAND(e, &aep_random) ||
290#endif
291 !ENGINE_set_init_function(e, aep_init) ||
292 !ENGINE_set_destroy_function(e, aep_destroy) ||
293 !ENGINE_set_finish_function(e, aep_finish) ||
294 !ENGINE_set_ctrl_function(e, aep_ctrl) ||
295 !ENGINE_set_cmd_defns(e, aep_cmd_defns))
296 return 0;
297
298#ifndef OPENSSL_NO_RSA
299 /* We know that the "PKCS1_SSLeay()" functions hook properly
300 * to the aep-specific mod_exp and mod_exp_crt so we use
301 * those functions. NB: We don't use ENGINE_openssl() or
302 * anything "more generic" because something like the RSAref
303 * code may not hook properly, and if you own one of these
304 * cards then you have the right to do RSA operations on it
305 * anyway! */
306 meth1 = RSA_PKCS1_SSLeay();
307 aep_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
308 aep_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
309 aep_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
310 aep_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
311#endif
312
313
314#ifndef OPENSSL_NO_DSA
315 /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
316 * bits. */
317 meth2 = DSA_OpenSSL();
318 aep_dsa.dsa_do_sign = meth2->dsa_do_sign;
319 aep_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
320 aep_dsa.dsa_do_verify = meth2->dsa_do_verify;
321
322 aep_dsa = *DSA_get_default_method();
323 aep_dsa.dsa_mod_exp = aep_dsa_mod_exp;
324 aep_dsa.bn_mod_exp = aep_mod_exp_dsa;
325#endif
326
327#ifndef OPENSSL_NO_DH
328 /* Much the same for Diffie-Hellman */
329 meth3 = DH_OpenSSL();
330 aep_dh.generate_key = meth3->generate_key;
331 aep_dh.compute_key = meth3->compute_key;
332 aep_dh.bn_mod_exp = meth3->bn_mod_exp;
333#endif
334
335 /* Ensure the aep error handling is set up */
336 ERR_load_AEPHK_strings();
337
338 return 1;
339}
340
ecd45314 341#ifndef OPENSSL_NO_DYNAMIC_ENGINE
5572f482
RL		 342static int bind_helper(ENGINE *e, const char *id)
343 {
344 if(id && (strcmp(id, engine_aep_id) != 0))
345 return 0;
346 if(!bind_aep(e))
347 return 0;
348 return 1;
349 }
350IMPLEMENT_DYNAMIC_CHECK_FN()
351IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
352#else
353static ENGINE *engine_aep(void)
354 {
355 ENGINE *ret = ENGINE_new();
356 if(!ret)
357 return NULL;
358 if(!bind_aep(ret))
359 {
360 ENGINE_free(ret);
361 return NULL;
362 }
363 return ret;
364 }
365
366void ENGINE_load_aep(void)
367 {
368 /* Copied from eng_[openssl|dyn].c */
369 ENGINE *toadd = engine_aep();
370 if(!toadd) return;
371 ENGINE_add(toadd);
372 ENGINE_free(toadd);
373 ERR_clear_error();
374 }
375#endif
376
377/* This is a process-global DSO handle used for loading and unloading
378 * the Aep library. NB: This is only set (or unset) during an
379 * init() or finish() call (reference counts permitting) and they're
380 * operating with global locks, so this should be thread-safe
381 * implicitly. */
382static DSO *aep_dso = NULL;
383
384/* These are the static string constants for the DSO file name and the function
385 * symbol names to bind to.
386*/
387static const char *AEP_LIBNAME = NULL;
388static const char *get_AEP_LIBNAME(void)
389 {
390 if(AEP_LIBNAME)
391 return AEP_LIBNAME;
392 return "aep";
393 }
394static void free_AEP_LIBNAME(void)
395 {
396 if(AEP_LIBNAME)
397 OPENSSL_free((void*)AEP_LIBNAME);
398 AEP_LIBNAME = NULL;
399 }
400static long set_AEP_LIBNAME(const char *name)
401 {
402 free_AEP_LIBNAME();
403 return ((AEP_LIBNAME = BUF_strdup(name)) != NULL ? 1 : 0);
404 }
405
406static const char *AEP_F1 = "AEP_ModExp";
407static const char *AEP_F2 = "AEP_ModExpCrt";
408#ifdef AEPRAND
409static const char *AEP_F3 = "AEP_GenRandom";
410#endif
411static const char *AEP_F4 = "AEP_Finalize";
412static const char *AEP_F5 = "AEP_Initialize";
413static const char *AEP_F6 = "AEP_OpenConnection";
414static const char *AEP_F7 = "AEP_SetBNCallBacks";
415static const char *AEP_F8 = "AEP_CloseConnection";
416
417/* These are the function pointers that are (un)set when the library has
418 * successfully (un)loaded. */
419static t_AEP_OpenConnection *p_AEP_OpenConnection = NULL;
420static t_AEP_CloseConnection *p_AEP_CloseConnection = NULL;
421static t_AEP_ModExp *p_AEP_ModExp = NULL;
422static t_AEP_ModExpCrt *p_AEP_ModExpCrt = NULL;
423#ifdef AEPRAND
424static t_AEP_GenRandom *p_AEP_GenRandom = NULL;
425#endif
426static t_AEP_Initialize *p_AEP_Initialize = NULL;
427static t_AEP_Finalize *p_AEP_Finalize = NULL;
428static t_AEP_SetBNCallBacks *p_AEP_SetBNCallBacks = NULL;
429
430/* (de)initialisation functions. */
431static int aep_init(ENGINE *e)
432 {
433 t_AEP_ModExp *p1;
434 t_AEP_ModExpCrt *p2;
435#ifdef AEPRAND
436 t_AEP_GenRandom *p3;
437#endif
438 t_AEP_Finalize *p4;
439 t_AEP_Initialize *p5;
440 t_AEP_OpenConnection *p6;
441 t_AEP_SetBNCallBacks *p7;
442 t_AEP_CloseConnection *p8;
443
444 int to_return = 0;
445
446 if(aep_dso != NULL)
447 {
448 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_ALREADY_LOADED);
449 goto err;
450 }
451 /* Attempt to load libaep.so. */
452
453 aep_dso = DSO_load(NULL, get_AEP_LIBNAME(), NULL, 0);
454
455 if(aep_dso == NULL)
456 {
457 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
458 goto err;
459 }
460
461 if( !(p1 = (t_AEP_ModExp *) DSO_bind_func( aep_dso,AEP_F1)) ||
462 !(p2 = (t_AEP_ModExpCrt*) DSO_bind_func( aep_dso,AEP_F2)) ||
463#ifdef AEPRAND
464 !(p3 = (t_AEP_GenRandom*) DSO_bind_func( aep_dso,AEP_F3)) ||
465#endif
466 !(p4 = (t_AEP_Finalize*) DSO_bind_func( aep_dso,AEP_F4)) ||
467 !(p5 = (t_AEP_Initialize*) DSO_bind_func( aep_dso,AEP_F5)) ||
468 !(p6 = (t_AEP_OpenConnection*) DSO_bind_func( aep_dso,AEP_F6)) ||
469 !(p7 = (t_AEP_SetBNCallBacks*) DSO_bind_func( aep_dso,AEP_F7)) ||
470 !(p8 = (t_AEP_CloseConnection*) DSO_bind_func( aep_dso,AEP_F8)))
471 {
472 AEPHKerr(AEPHK_F_AEP_INIT,AEPHK_R_NOT_LOADED);
473 goto err;
474 }
475
476 /* Copy the pointers */
477
478 p_AEP_ModExp = p1;
479 p_AEP_ModExpCrt = p2;
480#ifdef AEPRAND
481 p_AEP_GenRandom = p3;
482#endif
483 p_AEP_Finalize = p4;
484 p_AEP_Initialize = p5;
485 p_AEP_OpenConnection = p6;
486 p_AEP_SetBNCallBacks = p7;
487 p_AEP_CloseConnection = p8;
488
489 to_return = 1;
490
491 return to_return;
492
493 err:
494
495 if(aep_dso)
496 DSO_free(aep_dso);
edb06005 497 aep_dso = NULL;
5572f482
RL		 498
499 p_AEP_OpenConnection = NULL;
500 p_AEP_ModExp = NULL;
501 p_AEP_ModExpCrt = NULL;
502#ifdef AEPRAND
503 p_AEP_GenRandom = NULL;
504#endif
505 p_AEP_Initialize = NULL;
506 p_AEP_Finalize = NULL;
507 p_AEP_SetBNCallBacks = NULL;
508 p_AEP_CloseConnection = NULL;
509
510 return to_return;
511 }
512
513/* Destructor (complements the "ENGINE_aep()" constructor) */
514static int aep_destroy(ENGINE *e)
515 {
516 free_AEP_LIBNAME();
517 ERR_unload_AEPHK_strings();
518 return 1;
519 }
520
521static int aep_finish(ENGINE *e)
522 {
523 int to_return = 0, in_use;
524 AEP_RV rv;
525
526 if(aep_dso == NULL)
527 {
528 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_NOT_LOADED);
529 goto err;
530 }
531
532 rv = aep_close_all_connections(0, &in_use);
533 if (rv != AEP_R_OK)
534 {
535 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CLOSE_HANDLES_FAILED);
536 goto err;
537 }
538 if (in_use)
539 {
540 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_CONNECTIONS_IN_USE);
541 goto err;
542 }
543
544 rv = p_AEP_Finalize();
545 if (rv != AEP_R_OK)
546 {
547 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_FINALIZE_FAILED);
548 goto err;
549 }
550
551 if(!DSO_free(aep_dso))
552 {
553 AEPHKerr(AEPHK_F_AEP_FINISH,AEPHK_R_UNIT_FAILURE);
554 goto err;
555 }
556
557 aep_dso = NULL;
558 p_AEP_CloseConnection = NULL;
559 p_AEP_OpenConnection = NULL;
560 p_AEP_ModExp = NULL;
561 p_AEP_ModExpCrt = NULL;
562#ifdef AEPRAND
563 p_AEP_GenRandom = NULL;
564#endif
565 p_AEP_Initialize = NULL;
566 p_AEP_Finalize = NULL;
567 p_AEP_SetBNCallBacks = NULL;
568
569 to_return = 1;
570 err:
571 return to_return;
572 }
573
a99ce1a5 574static int aep_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
5572f482
RL		 575 {
576 int initialised = ((aep_dso == NULL) ? 0 : 1);
577 switch(cmd)
578 {
579 case AEP_CMD_SO_PATH:
580 if(p == NULL)
581 {
582 AEPHKerr(AEPHK_F_AEP_CTRL,
583 ERR_R_PASSED_NULL_PARAMETER);
584 return 0;
585 }
586 if(initialised)
587 {
588 AEPHKerr(AEPHK_F_AEP_CTRL,
589 AEPHK_R_ALREADY_LOADED);
590 return 0;
591 }
592 return set_AEP_LIBNAME((const char*)p);
593 default:
594 break;
595 }
596 AEPHKerr(AEPHK_F_AEP_CTRL,AEPHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
597 return 0;
598 }
599
600static int aep_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
601 const BIGNUM *m, BN_CTX *ctx)
602 {
603 int to_return = 0;
604 int r_len = 0;
605 AEP_CONNECTION_HNDL hConnection;
606 AEP_RV rv;
607
608 r_len = BN_num_bits(m);
609
610 /* Perform in software if modulus is too large for hardware. */
611
612 if (r_len > max_key_len){
613 AEPHKerr(AEPHK_F_AEP_MOD_EXP, AEPHK_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
614 return BN_mod_exp(r, a, p, m, ctx);
615 }
616
617 /*Grab a connection from the pool*/
618 rv = aep_get_connection(&hConnection);
619 if (rv != AEP_R_OK)
620 {
621 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_GET_HANDLE_FAILED);
622 return BN_mod_exp(r, a, p, m, ctx);
623 }
624
625 /*To the card with the mod exp*/
626 rv = p_AEP_ModExp(hConnection,(void*)a, (void*)p,(void*)m, (void*)r,NULL);
627
628 if (rv != AEP_R_OK)
629 {
630 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_MOD_EXP_FAILED);
631 rv = aep_close_connection(hConnection);
632 return BN_mod_exp(r, a, p, m, ctx);
633 }
634
635 /*Return the connection to the pool*/
636 rv = aep_return_connection(hConnection);
637 if (rv != AEP_R_OK)
638 {
fbeaa3c4 639 AEPHKerr(AEPHK_F_AEP_MOD_EXP,AEPHK_R_RETURN_CONNECTION_FAILED);
5572f482
RL		 640 goto err;
641 }
642
643 to_return = 1;
644 err:
645 return to_return;
646 }
647
3eeaab4b 648#ifndef OPENSSL_NO_RSA
5572f482
RL		 649static AEP_RV aep_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
650 const BIGNUM *q, const BIGNUM *dmp1,
651 const BIGNUM *dmq1,const BIGNUM *iqmp, BN_CTX *ctx)
652 {
653 AEP_RV rv = AEP_R_OK;
654 AEP_CONNECTION_HNDL hConnection;
655
656 /*Grab a connection from the pool*/
657 rv = aep_get_connection(&hConnection);
658 if (rv != AEP_R_OK)
659 {
660 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_GET_HANDLE_FAILED);
661 return FAIL_TO_SW;
662 }
663
664 /*To the card with the mod exp*/
665 rv = p_AEP_ModExpCrt(hConnection,(void*)a, (void*)p, (void*)q, (void*)dmp1,(void*)dmq1,
666 (void*)iqmp,(void*)r,NULL);
667 if (rv != AEP_R_OK)
668 {
669 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_MOD_EXP_CRT_FAILED);
670 rv = aep_close_connection(hConnection);
671 return FAIL_TO_SW;
672 }
673
674 /*Return the connection to the pool*/
675 rv = aep_return_connection(hConnection);
676 if (rv != AEP_R_OK)
677 {
fbeaa3c4 678 AEPHKerr(AEPHK_F_AEP_MOD_EXP_CRT,AEPHK_R_RETURN_CONNECTION_FAILED);
5572f482
RL		 679 goto err;
680 }
681
682 err:
683 return rv;
684 }
3eeaab4b 685#endif
5572f482
RL		 686
687
688#ifdef AEPRAND
689static int aep_rand(unsigned char *buf,int len )
690 {
691 AEP_RV rv = AEP_R_OK;
692 AEP_CONNECTION_HNDL hConnection;
693
694 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
695
696 /*Can the request be serviced with what's already in the buffer?*/
697 if (len <= rand_block_bytes)
698 {
699 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
700 rand_block_bytes -= len;
701 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
702 }
703 else
704 /*If not the get another block of random bytes*/
705 {
706 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
707
708 rv = aep_get_connection(&hConnection);
709 if (rv != AEP_R_OK)
710 {
711 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_HANDLE_FAILED);
712 goto err_nounlock;
713 }
714
715 if (len > RAND_BLK_SIZE)
716 {
717 rv = p_AEP_GenRandom(hConnection, len, 2, buf, NULL);
718 if (rv != AEP_R_OK)
719 {
720 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
721 goto err_nounlock;
722 }
723 }
724 else
725 {
726 CRYPTO_w_lock(CRYPTO_LOCK_RAND);
727
728 rv = p_AEP_GenRandom(hConnection, RAND_BLK_SIZE, 2, &rand_block[0], NULL);
729 if (rv != AEP_R_OK)
730 {
731 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_GET_RANDOM_FAILED);
732
733 goto err;
734 }
735
736 rand_block_bytes = RAND_BLK_SIZE;
737
738 memcpy(buf, &rand_block[RAND_BLK_SIZE - rand_block_bytes], len);
739 rand_block_bytes -= len;
740
741 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
742 }
743
744 rv = aep_return_connection(hConnection);
745 if (rv != AEP_R_OK)
746 {
747 AEPHKerr(AEPHK_F_AEP_RAND,AEPHK_R_RETURN_CONNECTION_FAILED);
748
749 goto err_nounlock;
750 }
751 }
752
753 return 1;
754 err:
755 CRYPTO_w_unlock(CRYPTO_LOCK_RAND);
756 err_nounlock:
757 return 0;
758 }
759
760static int aep_rand_status(void)
761{
762 return 1;
763}
764#endif
765
766#ifndef OPENSSL_NO_RSA
46ef873f 767static int aep_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
5572f482 768 {
5572f482
RL		 769 int to_return = 0;
770 AEP_RV rv = AEP_R_OK;
771
5572f482
RL		 772 if (!aep_dso)
773 {
774 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_NOT_LOADED);
775 goto err;
776 }
777
778 /*See if we have all the necessary bits for a crt*/
779 if (rsa->q && rsa->dmp1 && rsa->dmq1 && rsa->iqmp)
780 {
781 rv = aep_mod_exp_crt(r0,I,rsa->p,rsa->q, rsa->dmp1,rsa->dmq1,rsa->iqmp,ctx);
782
783 if (rv == FAIL_TO_SW){
784 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
46ef873f 785 to_return = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
5572f482
RL		 786 goto err;
787 }
788 else if (rv != AEP_R_OK)
789 goto err;
790 }
791 else
792 {
793 if (!rsa->d || !rsa->n)
794 {
795 AEPHKerr(AEPHK_F_AEP_RSA_MOD_EXP,AEPHK_R_MISSING_KEY_COMPONENTS);
796 goto err;
797 }
798
799 rv = aep_mod_exp(r0,I,rsa->d,rsa->n,ctx);
800 if (rv != AEP_R_OK)
801 goto err;
802
803 }
804
805 to_return = 1;
806
807 err:
5572f482
RL		 808 return to_return;
809}
810#endif
811
812#ifndef OPENSSL_NO_DSA
813static int aep_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
814 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
815 BN_CTX *ctx, BN_MONT_CTX *in_mont)
816 {
817 BIGNUM t;
818 int to_return = 0;
819 BN_init(&t);
820
821 /* let rr = a1 ^ p1 mod m */
822 if (!aep_mod_exp(rr,a1,p1,m,ctx)) goto end;
823 /* let t = a2 ^ p2 mod m */
824 if (!aep_mod_exp(&t,a2,p2,m,ctx)) goto end;
825 /* let rr = rr * t mod m */
826 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
827 to_return = 1;
828 end:
829 BN_free(&t);
830 return to_return;
831 }
832
833static int aep_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
834 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
835 BN_MONT_CTX *m_ctx)
836 {
837 return aep_mod_exp(r, a, p, m, ctx);
838 }
839#endif
840
3eeaab4b 841#ifndef OPENSSL_NO_RSA
5572f482
RL		 842/* This function is aliased to mod_exp (with the mont stuff dropped). */
843static int aep_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
844 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
845 {
846 return aep_mod_exp(r, a, p, m, ctx);
847 }
3eeaab4b 848#endif
5572f482
RL		 849
850#ifndef OPENSSL_NO_DH
851/* This function is aliased to mod_exp (with the dh and mont dropped). */
852static int aep_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
853 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
854 BN_MONT_CTX *m_ctx)
855 {
856 return aep_mod_exp(r, a, p, m, ctx);
857 }
858#endif
859
860static AEP_RV aep_get_connection(AEP_CONNECTION_HNDL_PTR phConnection)
861 {
862 int count;
863 AEP_RV rv = AEP_R_OK;
864
865 /*Get the current process id*/
866 pid_t curr_pid;
867
868 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
869
4d8743f4 870#ifndef NETWARE_CLIB
5572f482 871 curr_pid = getpid();
4d8743f4
RL		 872#else
873 curr_pid = GetThreadID();
874#endif
5572f482
RL		 875
876 /*Check if this is the first time this is being called from the current
877 process*/
878 if (recorded_pid != curr_pid)
879 {
880 /*Remember our pid so we can check if we're in a new process*/
881 recorded_pid = curr_pid;
882
883 /*Call Finalize to make sure we have not inherited some data
884 from a parent process*/
885 p_AEP_Finalize();
886
887 /*Initialise the AEP API*/
888 rv = p_AEP_Initialize(NULL);
889
890 if (rv != AEP_R_OK)
891 {
892 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_INIT_FAILURE);
893 recorded_pid = 0;
894 goto end;
895 }
896
897 /*Set the AEP big num call back functions*/
898 rv = p_AEP_SetBNCallBacks(&GetBigNumSize, &MakeAEPBigNum,
899 &ConvertAEPBigNum);
900
901 if (rv != AEP_R_OK)
902 {
903 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_SETBNCALLBACK_FAILURE);
904 recorded_pid = 0;
905 goto end;
906 }
907
908#ifdef AEPRAND
909 /*Reset the rand byte count*/
910 rand_block_bytes = 0;
911#endif
912
913 /*Init the structures*/
914 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
915 {
916 aep_app_conn_table[count].conn_state = NotConnected;
917 aep_app_conn_table[count].conn_hndl = 0;
918 }
919
920 /*Open a connection*/
921 rv = p_AEP_OpenConnection(phConnection);
922
923 if (rv != AEP_R_OK)
924 {
925 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
926 recorded_pid = 0;
927 goto end;
928 }
929
930 aep_app_conn_table[0].conn_state = InUse;
931 aep_app_conn_table[0].conn_hndl = *phConnection;
932 goto end;
933 }
934 /*Check the existing connections to see if we can find a free one*/
935 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
936 {
937 if (aep_app_conn_table[count].conn_state == Connected)
938 {
939 aep_app_conn_table[count].conn_state = InUse;
940 *phConnection = aep_app_conn_table[count].conn_hndl;
941 goto end;
942 }
943 }
944 /*If no connections available, we're going to have to try
945 to open a new one*/
946 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
947 {
948 if (aep_app_conn_table[count].conn_state == NotConnected)
949 {
950 /*Open a connection*/
951 rv = p_AEP_OpenConnection(phConnection);
952
953 if (rv != AEP_R_OK)
954 {
955 AEPHKerr(AEPHK_F_AEP_GET_CONNECTION,AEPHK_R_UNIT_FAILURE);
956 goto end;
957 }
958
959 aep_app_conn_table[count].conn_state = InUse;
960 aep_app_conn_table[count].conn_hndl = *phConnection;
961 goto end;
962 }
963 }
964 rv = AEP_R_GENERAL_ERROR;
965 end:
966 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
967 return rv;
968 }
969
970
971static AEP_RV aep_return_connection(AEP_CONNECTION_HNDL hConnection)
972 {
973 int count;
974
975 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
976
977 /*Find the connection item that matches this connection handle*/
978 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
979 {
980 if (aep_app_conn_table[count].conn_hndl == hConnection)
981 {
982 aep_app_conn_table[count].conn_state = Connected;
983 break;
984 }
985 }
986
987 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
988
989 return AEP_R_OK;
990 }
991
992static AEP_RV aep_close_connection(AEP_CONNECTION_HNDL hConnection)
993 {
994 int count;
995 AEP_RV rv = AEP_R_OK;
996
997 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
998
999 /*Find the connection item that matches this connection handle*/
1000 for(count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
1001 {
1002 if (aep_app_conn_table[count].conn_hndl == hConnection)
1003 {
1004 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1005 if (rv != AEP_R_OK)
1006 goto end;
1007 aep_app_conn_table[count].conn_state = NotConnected;
1008 aep_app_conn_table[count].conn_hndl = 0;
1009 break;
1010 }
1011 }
1012
1013 end:
1014 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1015 return rv;
1016 }
1017
1018static AEP_RV aep_close_all_connections(int use_engine_lock, int *in_use)
1019 {
1020 int count;
1021 AEP_RV rv = AEP_R_OK;
1022
1023 *in_use = 0;
1024 if (use_engine_lock) CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);
1025 for (count = 0;count < MAX_PROCESS_CONNECTIONS;count ++)
1026 {
1027 switch (aep_app_conn_table[count].conn_state)
1028 {
1029 case Connected:
1030 rv = p_AEP_CloseConnection(aep_app_conn_table[count].conn_hndl);
1031 if (rv != AEP_R_OK)
1032 goto end;
1033 aep_app_conn_table[count].conn_state = NotConnected;
1034 aep_app_conn_table[count].conn_hndl = 0;
1035 break;
1036 case InUse:
1037 (*in_use)++;
1038 break;
1039 case NotConnected:
1040 break;
1041 }
1042 }
1043 end:
1044 if (use_engine_lock) CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
1045 return rv;
1046 }
1047
1048/*BigNum call back functions, used to convert OpenSSL bignums into AEP bignums.
1049 Note only 32bit Openssl build support*/
1050
1051static AEP_RV GetBigNumSize(AEP_VOID_PTR ArbBigNum, AEP_U32* BigNumSize)
1052 {
1053 BIGNUM* bn;
1054
1055 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1056 bn = (BIGNUM*) ArbBigNum;
1057
1058#ifdef SIXTY_FOUR_BIT_LONG
1059 *BigNumSize = bn->top << 3;
1060#else
1061 /*Size of the bignum in bytes is equal to the bn->top (no of 32 bit
1062 words) multiplies by 4*/
1063 *BigNumSize = bn->top << 2;
1064#endif
1065
1066 return AEP_R_OK;
1067 }
1068
1069static AEP_RV MakeAEPBigNum(AEP_VOID_PTR ArbBigNum, AEP_U32 BigNumSize,
1070 unsigned char* AEP_BigNum)
1071 {
1072 BIGNUM* bn;
1073
1074#ifndef SIXTY_FOUR_BIT_LONG
1075 unsigned char* buf;
1076 int i;
1077#endif
1078
1079 /*Cast the ArbBigNum pointer to our BIGNUM struct*/
1080 bn = (BIGNUM*) ArbBigNum;
1081
1082#ifdef SIXTY_FOUR_BIT_LONG
1083 memcpy(AEP_BigNum, bn->d, BigNumSize);
1084#else
1085 /*Must copy data into a (monotone) least significant byte first format
1086 performing endian conversion if necessary*/
1087 for(i=0;i<bn->top;i++)
1088 {
1089 buf = (unsigned char*)&bn->d[i];
1090
1091 *((AEP_U32*)AEP_BigNum) = (AEP_U32)
1092 ((unsigned) buf[1] << 8 | buf[0]) |
1093 ((unsigned) buf[3] << 8 | buf[2]) << 16;
1094
1095 AEP_BigNum += 4;
1096 }
1097#endif
1098
1099 return AEP_R_OK;
1100 }
1101
1102/*Turn an AEP Big Num back to a user big num*/
1103static AEP_RV ConvertAEPBigNum(void* ArbBigNum, AEP_U32 BigNumSize,
1104 unsigned char* AEP_BigNum)
1105 {
1106 BIGNUM* bn;
1107#ifndef SIXTY_FOUR_BIT_LONG
1108 int i;
1109#endif
1110
1111 bn = (BIGNUM*)ArbBigNum;
1112
1113 /*Expand the result bn so that it can hold our big num.
1114 Size is in bits*/
1115 bn_expand(bn, (int)(BigNumSize << 3));
1116
1117#ifdef SIXTY_FOUR_BIT_LONG
1118 bn->top = BigNumSize >> 3;
1119
1120 if((BigNumSize & 7) != 0)
1121 bn->top++;
1122
1123 memset(bn->d, 0, bn->top << 3);
1124
1125 memcpy(bn->d, AEP_BigNum, BigNumSize);
1126#else
1127 bn->top = BigNumSize >> 2;
1128
1129 for(i=0;i<bn->top;i++)
1130 {
1131 bn->d[i] = (AEP_U32)
1132 ((unsigned) AEP_BigNum[3] << 8 | AEP_BigNum[2]) << 16 |
1133 ((unsigned) AEP_BigNum[1] << 8 | AEP_BigNum[0]);
1134 AEP_BigNum += 4;
1135 }
1136#endif
1137
1138 return AEP_R_OK;
1139}
1140
1141#endif /* !OPENSSL_NO_HW_AEP */
1142#endif /* !OPENSSL_NO_HW */
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