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diff --git a/src/lib/libcrypto/engine/hw_ubsec.c b/src/lib/libcrypto/engine/hw_ubsec.c
new file mode 100644
index 0000000000..743c06043c
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+++ b/src/lib/libcrypto/engine/hw_ubsec.c
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1/* crypto/engine/hw_ubsec.c */
2/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
3 * project 2000.
4 *
5 * Cloned shamelessly by Joe Tardo.
6 */
7/* ====================================================================
8 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 *
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in
19 * the documentation and/or other materials provided with the
20 * distribution.
21 *
22 * 3. All advertising materials mentioning features or use of this
23 * software must display the following acknowledgment:
24 * "This product includes software developed by the OpenSSL Project
25 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 *
27 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
28 * endorse or promote products derived from this software without
29 * prior written permission. For written permission, please contact
30 * licensing@OpenSSL.org.
31 *
32 * 5. Products derived from this software may not be called "OpenSSL"
33 * nor may "OpenSSL" appear in their names without prior written
34 * permission of the OpenSSL Project.
35 *
36 * 6. Redistributions of any form whatsoever must retain the following
37 * acknowledgment:
38 * "This product includes software developed by the OpenSSL Project
39 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
42 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
44 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
47 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
48 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
50 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
51 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
52 * OF THE POSSIBILITY OF SUCH DAMAGE.
53 * ====================================================================
54 *
55 * This product includes cryptographic software written by Eric Young
56 * (eay@cryptsoft.com). This product includes software written by Tim
57 * Hudson (tjh@cryptsoft.com).
58 *
59 */
60
61#include <stdio.h>
62#include <openssl/crypto.h>
63#include "cryptlib.h"
64#include <openssl/dso.h>
65#include <openssl/engine.h>
66
67#ifndef OPENSSL_NO_HW
68#ifndef OPENSSL_NO_HW_UBSEC
69
70#ifdef FLAT_INC
71#include "hw_ubsec.h"
72#else
73#include "vendor_defns/hw_ubsec.h"
74#endif
75
76#define UBSEC_LIB_NAME "ubsec engine"
77#include "hw_ubsec_err.c"
78
79#define FAIL_TO_SOFTWARE -15
80
81static int ubsec_destroy(ENGINE *e);
82static int ubsec_init(ENGINE *e);
83static int ubsec_finish(ENGINE *e);
84static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)());
85static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
86 const BIGNUM *m, BN_CTX *ctx);
87static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
88 const BIGNUM *q, const BIGNUM *dp,
89 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx);
90#ifndef OPENSSL_NO_RSA
91static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
92#endif
93static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
94 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
95#ifndef OPENSSL_NO_DSA
96#if NOT_USED
97static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
98 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
99 BN_CTX *ctx, BN_MONT_CTX *in_mont);
100static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
101 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
102 BN_MONT_CTX *m_ctx);
103#endif
104static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
105static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
106 DSA_SIG *sig, DSA *dsa);
107#endif
108#ifndef OPENSSL_NO_DH
109static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
110 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
111 BN_MONT_CTX *m_ctx);
112static int ubsec_dh_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh);
113static int ubsec_dh_generate_key(DH *dh);
114#endif
115
116#if NOT_USED
117static int ubsec_rand_bytes(unsigned char *buf, int num);
118static int ubsec_rand_status(void);
119#endif
120
121#define UBSEC_CMD_SO_PATH ENGINE_CMD_BASE
122static const ENGINE_CMD_DEFN ubsec_cmd_defns[] = {
123 {UBSEC_CMD_SO_PATH,
124 "SO_PATH",
125 "Specifies the path to the 'ubsec' shared library",
126 ENGINE_CMD_FLAG_STRING},
127 {0, NULL, NULL, 0}
128 };
129
130#ifndef OPENSSL_NO_RSA
131/* Our internal RSA_METHOD that we provide pointers to */
132static RSA_METHOD ubsec_rsa =
133 {
134 "UBSEC RSA method",
135 NULL,
136 NULL,
137 NULL,
138 NULL,
139 ubsec_rsa_mod_exp,
140 ubsec_mod_exp_mont,
141 NULL,
142 NULL,
143 0,
144 NULL,
145 NULL,
146 NULL
147 };
148#endif
149
150#ifndef OPENSSL_NO_DSA
151/* Our internal DSA_METHOD that we provide pointers to */
152static DSA_METHOD ubsec_dsa =
153 {
154 "UBSEC DSA method",
155 ubsec_dsa_do_sign, /* dsa_do_sign */
156 NULL, /* dsa_sign_setup */
157 ubsec_dsa_verify, /* dsa_do_verify */
158 NULL, /* ubsec_dsa_mod_exp */ /* dsa_mod_exp */
159 NULL, /* ubsec_mod_exp_dsa */ /* bn_mod_exp */
160 NULL, /* init */
161 NULL, /* finish */
162 0, /* flags */
163 NULL /* app_data */
164 };
165#endif
166
167#ifndef OPENSSL_NO_DH
168/* Our internal DH_METHOD that we provide pointers to */
169static DH_METHOD ubsec_dh =
170 {
171 "UBSEC DH method",
172 ubsec_dh_generate_key,
173 ubsec_dh_compute_key,
174 ubsec_mod_exp_dh,
175 NULL,
176 NULL,
177 0,
178 NULL
179 };
180#endif
181
182/* Constants used when creating the ENGINE */
183static const char *engine_ubsec_id = "ubsec";
184static const char *engine_ubsec_name = "UBSEC hardware engine support";
185
186/* This internal function is used by ENGINE_ubsec() and possibly by the
187 * "dynamic" ENGINE support too */
188static int bind_helper(ENGINE *e)
189 {
190#ifndef OPENSSL_NO_RSA
191 const RSA_METHOD *meth1;
192#endif
193#ifndef OPENSSL_NO_DH
194#ifndef HAVE_UBSEC_DH
195 const DH_METHOD *meth3;
196#endif /* HAVE_UBSEC_DH */
197#endif
198 if(!ENGINE_set_id(e, engine_ubsec_id) ||
199 !ENGINE_set_name(e, engine_ubsec_name) ||
200#ifndef OPENSSL_NO_RSA
201 !ENGINE_set_RSA(e, &ubsec_rsa) ||
202#endif
203#ifndef OPENSSL_NO_DSA
204 !ENGINE_set_DSA(e, &ubsec_dsa) ||
205#endif
206#ifndef OPENSSL_NO_DH
207 !ENGINE_set_DH(e, &ubsec_dh) ||
208#endif
209 !ENGINE_set_destroy_function(e, ubsec_destroy) ||
210 !ENGINE_set_init_function(e, ubsec_init) ||
211 !ENGINE_set_finish_function(e, ubsec_finish) ||
212 !ENGINE_set_ctrl_function(e, ubsec_ctrl) ||
213 !ENGINE_set_cmd_defns(e, ubsec_cmd_defns))
214 return 0;
215
216#ifndef OPENSSL_NO_RSA
217 /* We know that the "PKCS1_SSLeay()" functions hook properly
218 * to the Broadcom-specific mod_exp and mod_exp_crt so we use
219 * those functions. NB: We don't use ENGINE_openssl() or
220 * anything "more generic" because something like the RSAref
221 * code may not hook properly, and if you own one of these
222 * cards then you have the right to do RSA operations on it
223 * anyway! */
224 meth1 = RSA_PKCS1_SSLeay();
225 ubsec_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
226 ubsec_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
227 ubsec_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
228 ubsec_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
229#endif
230
231#ifndef OPENSSL_NO_DH
232#ifndef HAVE_UBSEC_DH
233 /* Much the same for Diffie-Hellman */
234 meth3 = DH_OpenSSL();
235 ubsec_dh.generate_key = meth3->generate_key;
236 ubsec_dh.compute_key = meth3->compute_key;
237#endif /* HAVE_UBSEC_DH */
238#endif
239
240 /* Ensure the ubsec error handling is set up */
241 ERR_load_UBSEC_strings();
242 return 1;
243 }
244
245static ENGINE *engine_ubsec(void)
246 {
247 ENGINE *ret = ENGINE_new();
248 if(!ret)
249 return NULL;
250 if(!bind_helper(ret))
251 {
252 ENGINE_free(ret);
253 return NULL;
254 }
255 return ret;
256 }
257
258void ENGINE_load_ubsec(void)
259 {
260 /* Copied from eng_[openssl|dyn].c */
261 ENGINE *toadd = engine_ubsec();
262 if(!toadd) return;
263 ENGINE_add(toadd);
264 ENGINE_free(toadd);
265 ERR_clear_error();
266 }
267
268/* This is a process-global DSO handle used for loading and unloading
269 * the UBSEC library. NB: This is only set (or unset) during an
270 * init() or finish() call (reference counts permitting) and they're
271 * operating with global locks, so this should be thread-safe
272 * implicitly. */
273
274static DSO *ubsec_dso = NULL;
275
276/* These are the function pointers that are (un)set when the library has
277 * successfully (un)loaded. */
278
279static t_UBSEC_ubsec_bytes_to_bits *p_UBSEC_ubsec_bytes_to_bits = NULL;
280static t_UBSEC_ubsec_bits_to_bytes *p_UBSEC_ubsec_bits_to_bytes = NULL;
281static t_UBSEC_ubsec_open *p_UBSEC_ubsec_open = NULL;
282static t_UBSEC_ubsec_close *p_UBSEC_ubsec_close = NULL;
283#ifndef OPENSSL_NO_DH
284static t_UBSEC_diffie_hellman_generate_ioctl
285 *p_UBSEC_diffie_hellman_generate_ioctl = NULL;
286static t_UBSEC_diffie_hellman_agree_ioctl *p_UBSEC_diffie_hellman_agree_ioctl = NULL;
287#endif
288/* #ifndef OPENSSL_NO_RSA */
289static t_UBSEC_rsa_mod_exp_ioctl *p_UBSEC_rsa_mod_exp_ioctl = NULL;
290static t_UBSEC_rsa_mod_exp_crt_ioctl *p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
291/* #endif */
292#ifndef OPENSSL_NO_DSA
293static t_UBSEC_dsa_sign_ioctl *p_UBSEC_dsa_sign_ioctl = NULL;
294static t_UBSEC_dsa_verify_ioctl *p_UBSEC_dsa_verify_ioctl = NULL;
295#endif
296static t_UBSEC_math_accelerate_ioctl *p_UBSEC_math_accelerate_ioctl = NULL;
297static t_UBSEC_rng_ioctl *p_UBSEC_rng_ioctl = NULL;
298static t_UBSEC_max_key_len_ioctl *p_UBSEC_max_key_len_ioctl = NULL;
299
300static int max_key_len = 1024; /* ??? */
301
302/*
303 * These are the static string constants for the DSO file name and the function
304 * symbol names to bind to.
305 */
306
307static const char *UBSEC_LIBNAME = "ubsec";
308static const char *UBSEC_F1 = "ubsec_bytes_to_bits";
309static const char *UBSEC_F2 = "ubsec_bits_to_bytes";
310static const char *UBSEC_F3 = "ubsec_open";
311static const char *UBSEC_F4 = "ubsec_close";
312#ifndef OPENSSL_NO_DH
313static const char *UBSEC_F5 = "diffie_hellman_generate_ioctl";
314static const char *UBSEC_F6 = "diffie_hellman_agree_ioctl";
315#endif
316/* #ifndef OPENSSL_NO_RSA */
317static const char *UBSEC_F7 = "rsa_mod_exp_ioctl";
318static const char *UBSEC_F8 = "rsa_mod_exp_crt_ioctl";
319/* #endif */
320#ifndef OPENSSL_NO_DSA
321static const char *UBSEC_F9 = "dsa_sign_ioctl";
322static const char *UBSEC_F10 = "dsa_verify_ioctl";
323#endif
324static const char *UBSEC_F11 = "math_accelerate_ioctl";
325static const char *UBSEC_F12 = "rng_ioctl";
326static const char *UBSEC_F13 = "ubsec_max_key_len_ioctl";
327
328/* Destructor (complements the "ENGINE_ubsec()" constructor) */
329static int ubsec_destroy(ENGINE *e)
330 {
331 ERR_unload_UBSEC_strings();
332 return 1;
333 }
334
335/* (de)initialisation functions. */
336static int ubsec_init(ENGINE *e)
337 {
338 t_UBSEC_ubsec_bytes_to_bits *p1;
339 t_UBSEC_ubsec_bits_to_bytes *p2;
340 t_UBSEC_ubsec_open *p3;
341 t_UBSEC_ubsec_close *p4;
342#ifndef OPENSSL_NO_DH
343 t_UBSEC_diffie_hellman_generate_ioctl *p5;
344 t_UBSEC_diffie_hellman_agree_ioctl *p6;
345#endif
346/* #ifndef OPENSSL_NO_RSA */
347 t_UBSEC_rsa_mod_exp_ioctl *p7;
348 t_UBSEC_rsa_mod_exp_crt_ioctl *p8;
349/* #endif */
350#ifndef OPENSSL_NO_DSA
351 t_UBSEC_dsa_sign_ioctl *p9;
352 t_UBSEC_dsa_verify_ioctl *p10;
353#endif
354 t_UBSEC_math_accelerate_ioctl *p11;
355 t_UBSEC_rng_ioctl *p12;
356 t_UBSEC_max_key_len_ioctl *p13;
357 int fd = 0;
358
359 if(ubsec_dso != NULL)
360 {
361 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_ALREADY_LOADED);
362 goto err;
363 }
364 /*
365 * Attempt to load libubsec.so/ubsec.dll/whatever.
366 */
367 ubsec_dso = DSO_load(NULL, UBSEC_LIBNAME, NULL, 0);
368 if(ubsec_dso == NULL)
369 {
370 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE);
371 goto err;
372 }
373
374 if (
375 !(p1 = (t_UBSEC_ubsec_bytes_to_bits *) DSO_bind_func(ubsec_dso, UBSEC_F1)) ||
376 !(p2 = (t_UBSEC_ubsec_bits_to_bytes *) DSO_bind_func(ubsec_dso, UBSEC_F2)) ||
377 !(p3 = (t_UBSEC_ubsec_open *) DSO_bind_func(ubsec_dso, UBSEC_F3)) ||
378 !(p4 = (t_UBSEC_ubsec_close *) DSO_bind_func(ubsec_dso, UBSEC_F4)) ||
379#ifndef OPENSSL_NO_DH
380 !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *)
381 DSO_bind_func(ubsec_dso, UBSEC_F5)) ||
382 !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
383 DSO_bind_func(ubsec_dso, UBSEC_F6)) ||
384#endif
385/* #ifndef OPENSSL_NO_RSA */
386 !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F7)) ||
387 !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F8)) ||
388/* #endif */
389#ifndef OPENSSL_NO_DSA
390 !(p9 = (t_UBSEC_dsa_sign_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F9)) ||
391 !(p10 = (t_UBSEC_dsa_verify_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F10)) ||
392#endif
393 !(p11 = (t_UBSEC_math_accelerate_ioctl *)
394 DSO_bind_func(ubsec_dso, UBSEC_F11)) ||
395 !(p12 = (t_UBSEC_rng_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F12)) ||
396 !(p13 = (t_UBSEC_max_key_len_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F13)))
397 {
398 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE);
399 goto err;
400 }
401
402 /* Copy the pointers */
403 p_UBSEC_ubsec_bytes_to_bits = p1;
404 p_UBSEC_ubsec_bits_to_bytes = p2;
405 p_UBSEC_ubsec_open = p3;
406 p_UBSEC_ubsec_close = p4;
407#ifndef OPENSSL_NO_DH
408 p_UBSEC_diffie_hellman_generate_ioctl = p5;
409 p_UBSEC_diffie_hellman_agree_ioctl = p6;
410#endif
411#ifndef OPENSSL_NO_RSA
412 p_UBSEC_rsa_mod_exp_ioctl = p7;
413 p_UBSEC_rsa_mod_exp_crt_ioctl = p8;
414#endif
415#ifndef OPENSSL_NO_DSA
416 p_UBSEC_dsa_sign_ioctl = p9;
417 p_UBSEC_dsa_verify_ioctl = p10;
418#endif
419 p_UBSEC_math_accelerate_ioctl = p11;
420 p_UBSEC_rng_ioctl = p12;
421 p_UBSEC_max_key_len_ioctl = p13;
422
423 /* Perform an open to see if there's actually any unit running. */
424 if (((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0) && (p_UBSEC_max_key_len_ioctl(fd, &max_key_len) == 0))
425 {
426 p_UBSEC_ubsec_close(fd);
427 return 1;
428 }
429 else
430 {
431 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
432 }
433
434err:
435 if(ubsec_dso)
436 DSO_free(ubsec_dso);
437 p_UBSEC_ubsec_bytes_to_bits = NULL;
438 p_UBSEC_ubsec_bits_to_bytes = NULL;
439 p_UBSEC_ubsec_open = NULL;
440 p_UBSEC_ubsec_close = NULL;
441#ifndef OPENSSL_NO_DH
442 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
443 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
444#endif
445#ifndef OPENSSL_NO_RSA
446 p_UBSEC_rsa_mod_exp_ioctl = NULL;
447 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
448#endif
449#ifndef OPENSSL_NO_DSA
450 p_UBSEC_dsa_sign_ioctl = NULL;
451 p_UBSEC_dsa_verify_ioctl = NULL;
452#endif
453 p_UBSEC_math_accelerate_ioctl = NULL;
454 p_UBSEC_rng_ioctl = NULL;
455 p_UBSEC_max_key_len_ioctl = NULL;
456
457 return 0;
458 }
459
460static int ubsec_finish(ENGINE *e)
461 {
462 if(ubsec_dso == NULL)
463 {
464 UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_NOT_LOADED);
465 return 0;
466 }
467 if(!DSO_free(ubsec_dso))
468 {
469 UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_DSO_FAILURE);
470 return 0;
471 }
472 ubsec_dso = NULL;
473 p_UBSEC_ubsec_bytes_to_bits = NULL;
474 p_UBSEC_ubsec_bits_to_bytes = NULL;
475 p_UBSEC_ubsec_open = NULL;
476 p_UBSEC_ubsec_close = NULL;
477#ifndef OPENSSL_NO_DH
478 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
479 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
480#endif
481#ifndef OPENSSL_NO_RSA
482 p_UBSEC_rsa_mod_exp_ioctl = NULL;
483 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
484#endif
485#ifndef OPENSSL_NO_DSA
486 p_UBSEC_dsa_sign_ioctl = NULL;
487 p_UBSEC_dsa_verify_ioctl = NULL;
488#endif
489 p_UBSEC_math_accelerate_ioctl = NULL;
490 p_UBSEC_rng_ioctl = NULL;
491 p_UBSEC_max_key_len_ioctl = NULL;
492 return 1;
493 }
494
495static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)())
496 {
497 int initialised = ((ubsec_dso == NULL) ? 0 : 1);
498 switch(cmd)
499 {
500 case UBSEC_CMD_SO_PATH:
501 if(p == NULL)
502 {
503 UBSECerr(UBSEC_F_UBSEC_CTRL,ERR_R_PASSED_NULL_PARAMETER);
504 return 0;
505 }
506 if(initialised)
507 {
508 UBSECerr(UBSEC_F_UBSEC_CTRL,UBSEC_R_ALREADY_LOADED);
509 return 0;
510 }
511 UBSEC_LIBNAME = (const char *)p;
512 return 1;
513 default:
514 break;
515 }
516 UBSECerr(UBSEC_F_UBSEC_CTRL,UBSEC_R_CTRL_COMMAND_NOT_IMPLEMENTED);
517 return 0;
518 }
519
520static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
521 const BIGNUM *m, BN_CTX *ctx)
522 {
523 int y_len = 0;
524 int fd;
525
526 if(ubsec_dso == NULL)
527 {
528 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_NOT_LOADED);
529 return 0;
530 }
531
532 /* Check if hardware can't handle this argument. */
533 y_len = BN_num_bits(m);
534 if (y_len > max_key_len) {
535 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
536 return BN_mod_exp(r, a, p, m, ctx);
537 }
538
539 if(!bn_wexpand(r, m->top))
540 {
541 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_BN_EXPAND_FAIL);
542 return 0;
543 }
544 memset(r->d, 0, BN_num_bytes(m));
545
546 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
547 fd = 0;
548 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
549 return BN_mod_exp(r, a, p, m, ctx);
550 }
551
552 if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a),
553 (unsigned char *)m->d, BN_num_bits(m), (unsigned char *)p->d,
554 BN_num_bits(p), (unsigned char *)r->d, &y_len) != 0)
555 {
556 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_REQUEST_FAILED);
557 p_UBSEC_ubsec_close(fd);
558
559 return BN_mod_exp(r, a, p, m, ctx);
560 }
561
562 p_UBSEC_ubsec_close(fd);
563
564 r->top = (BN_num_bits(m)+BN_BITS2-1)/BN_BITS2;
565 return 1;
566 }
567
568#ifndef OPENSSL_NO_RSA
569static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
570 {
571 BN_CTX *ctx;
572 int to_return = 0;
573
574 if((ctx = BN_CTX_new()) == NULL)
575 goto err;
576
577 if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp)
578 {
579 UBSECerr(UBSEC_F_UBSEC_RSA_MOD_EXP, UBSEC_R_MISSING_KEY_COMPONENTS);
580 goto err;
581 }
582
583 to_return = ubsec_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
584 rsa->dmq1, rsa->iqmp, ctx);
585 if (to_return == FAIL_TO_SOFTWARE)
586 {
587 /*
588 * Do in software as hardware failed.
589 */
590 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
591 to_return = (*meth->rsa_mod_exp)(r0, I, rsa);
592 }
593err:
594 if(ctx)
595 BN_CTX_free(ctx);
596 return to_return;
597 }
598#endif
599
600static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
601 const BIGNUM *q, const BIGNUM *dp,
602 const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx)
603 {
604 int y_len,
605 m_len,
606 fd;
607
608 m_len = BN_num_bytes(p) + BN_num_bytes(q) + 1;
609 y_len = BN_num_bits(p) + BN_num_bits(q);
610
611 /* Check if hardware can't handle this argument. */
612 if (y_len > max_key_len) {
613 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
614 return FAIL_TO_SOFTWARE;
615 }
616
617 if (!bn_wexpand(r, p->top + q->top + 1)) {
618 UBSECerr(UBSEC_F_UBSEC_RSA_MOD_EXP_CRT, UBSEC_R_BN_EXPAND_FAIL);
619 return 0;
620 }
621
622 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
623 fd = 0;
624 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
625 return FAIL_TO_SOFTWARE;
626 }
627
628 if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd,
629 (unsigned char *)a->d, BN_num_bits(a),
630 (unsigned char *)qinv->d, BN_num_bits(qinv),
631 (unsigned char *)dp->d, BN_num_bits(dp),
632 (unsigned char *)p->d, BN_num_bits(p),
633 (unsigned char *)dq->d, BN_num_bits(dq),
634 (unsigned char *)q->d, BN_num_bits(q),
635 (unsigned char *)r->d, &y_len) != 0) {
636 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_REQUEST_FAILED);
637 p_UBSEC_ubsec_close(fd);
638 return FAIL_TO_SOFTWARE;
639 }
640
641 p_UBSEC_ubsec_close(fd);
642
643 r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1)/BN_BITS2;
644 return 1;
645}
646
647#ifndef OPENSSL_NO_DSA
648#if NOT_USED
649static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
650 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
651 BN_CTX *ctx, BN_MONT_CTX *in_mont)
652 {
653 BIGNUM t;
654 int to_return = 0;
655
656 BN_init(&t);
657 /* let rr = a1 ^ p1 mod m */
658 if (!ubsec_mod_exp(rr,a1,p1,m,ctx)) goto end;
659 /* let t = a2 ^ p2 mod m */
660 if (!ubsec_mod_exp(&t,a2,p2,m,ctx)) goto end;
661 /* let rr = rr * t mod m */
662 if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
663 to_return = 1;
664end:
665 BN_free(&t);
666 return to_return;
667 }
668
669static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
670 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
671 BN_MONT_CTX *m_ctx)
672 {
673 return ubsec_mod_exp(r, a, p, m, ctx);
674 }
675#endif
676#endif
677
678/*
679 * This function is aliased to mod_exp (with the mont stuff dropped).
680 */
681static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
682 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
683 {
684 int ret = 0;
685
686#ifndef OPENSSL_NO_RSA
687 /* Do in software if the key is too large for the hardware. */
688 if (BN_num_bits(m) > max_key_len)
689 {
690 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
691 ret = (*meth->bn_mod_exp)(r, a, p, m, ctx, m_ctx);
692 }
693 else
694#endif
695 {
696 ret = ubsec_mod_exp(r, a, p, m, ctx);
697 }
698
699 return ret;
700 }
701
702#ifndef OPENSSL_NO_DH
703/* This function is aliased to mod_exp (with the dh and mont dropped). */
704static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
705 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
706 BN_MONT_CTX *m_ctx)
707 {
708 return ubsec_mod_exp(r, a, p, m, ctx);
709 }
710#endif
711
712#ifndef OPENSSL_NO_DSA
713static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
714 {
715 DSA_SIG *to_return = NULL;
716 int s_len = 160, r_len = 160, d_len, fd;
717 BIGNUM m, *r=NULL, *s=NULL;
718
719 BN_init(&m);
720
721 s = BN_new();
722 r = BN_new();
723 if ((s == NULL) || (r==NULL))
724 goto err;
725
726 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen);
727
728 if(!bn_wexpand(r, (160+BN_BITS2-1)/BN_BITS2) ||
729 (!bn_wexpand(s, (160+BN_BITS2-1)/BN_BITS2))) {
730 UBSECerr(UBSEC_F_UBSEC_DSA_SIGN, UBSEC_R_BN_EXPAND_FAIL);
731 goto err;
732 }
733
734 if (BN_bin2bn(dgst,dlen,&m) == NULL) {
735 UBSECerr(UBSEC_F_UBSEC_DSA_SIGN, UBSEC_R_BN_EXPAND_FAIL);
736 goto err;
737 }
738
739 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
740 const DSA_METHOD *meth;
741 fd = 0;
742 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
743 meth = DSA_OpenSSL();
744 to_return = meth->dsa_do_sign(dgst, dlen, dsa);
745 goto err;
746 }
747
748 if (p_UBSEC_dsa_sign_ioctl(fd, 0, /* compute hash before signing */
749 (unsigned char *)dgst, d_len,
750 NULL, 0, /* compute random value */
751 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
752 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
753 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
754 (unsigned char *)dsa->priv_key->d, BN_num_bits(dsa->priv_key),
755 (unsigned char *)r->d, &r_len,
756 (unsigned char *)s->d, &s_len ) != 0) {
757 const DSA_METHOD *meth;
758
759 UBSECerr(UBSEC_F_UBSEC_DSA_SIGN, UBSEC_R_REQUEST_FAILED);
760 p_UBSEC_ubsec_close(fd);
761 meth = DSA_OpenSSL();
762 to_return = meth->dsa_do_sign(dgst, dlen, dsa);
763
764 goto err;
765 }
766
767 p_UBSEC_ubsec_close(fd);
768
769 r->top = (160+BN_BITS2-1)/BN_BITS2;
770 s->top = (160+BN_BITS2-1)/BN_BITS2;
771
772 to_return = DSA_SIG_new();
773 if(to_return == NULL) {
774 UBSECerr(UBSEC_F_UBSEC_DSA_SIGN, UBSEC_R_BN_EXPAND_FAIL);
775 goto err;
776 }
777
778 to_return->r = r;
779 to_return->s = s;
780
781err:
782 if (!to_return) {
783 if (r) BN_free(r);
784 if (s) BN_free(s);
785 }
786 BN_clear_free(&m);
787 return to_return;
788}
789
790static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
791 DSA_SIG *sig, DSA *dsa)
792 {
793 int v_len, d_len;
794 int to_return = 0;
795 int fd;
796 BIGNUM v;
797
798 BN_init(&v);
799
800 if(!bn_wexpand(&v, dsa->p->top)) {
801 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY ,UBSEC_R_BN_EXPAND_FAIL);
802 goto err;
803 }
804
805 v_len = BN_num_bits(dsa->p);
806
807 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len);
808
809 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
810 const DSA_METHOD *meth;
811 fd = 0;
812 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
813 meth = DSA_OpenSSL();
814 to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa);
815 goto err;
816 }
817
818 if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */
819 (unsigned char *)dgst, d_len,
820 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
821 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
822 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
823 (unsigned char *)dsa->pub_key->d, BN_num_bits(dsa->pub_key),
824 (unsigned char *)sig->r->d, BN_num_bits(sig->r),
825 (unsigned char *)sig->s->d, BN_num_bits(sig->s),
826 (unsigned char *)v.d, &v_len) != 0) {
827 const DSA_METHOD *meth;
828 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY , UBSEC_R_REQUEST_FAILED);
829 p_UBSEC_ubsec_close(fd);
830
831 meth = DSA_OpenSSL();
832 to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa);
833
834 goto err;
835 }
836
837 p_UBSEC_ubsec_close(fd);
838
839 to_return = 1;
840err:
841 BN_clear_free(&v);
842 return to_return;
843 }
844#endif
845
846#ifndef OPENSSL_NO_DH
847static int ubsec_dh_compute_key (unsigned char *key,const BIGNUM *pub_key,DH *dh)
848 {
849 int ret = -1,
850 k_len,
851 fd;
852
853 k_len = BN_num_bits(dh->p);
854
855 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
856 {
857 const DH_METHOD *meth;
858 ENGINEerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
859 meth = DH_OpenSSL();
860 ret = meth->compute_key(key, pub_key, dh);
861 goto err;
862 }
863
864 if (p_UBSEC_diffie_hellman_agree_ioctl(fd,
865 (unsigned char *)dh->priv_key->d, BN_num_bits(dh->priv_key),
866 (unsigned char *)pub_key->d, BN_num_bits(pub_key),
867 (unsigned char *)dh->p->d, BN_num_bits(dh->p),
868 key, &k_len) != 0)
869 {
870 /* Hardware's a no go, failover to software */
871 const DH_METHOD *meth;
872 ENGINEerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_REQUEST_FAILED);
873 p_UBSEC_ubsec_close(fd);
874
875 meth = DH_OpenSSL();
876 ret = meth->compute_key(key, pub_key, dh);
877
878 goto err;
879 }
880
881 p_UBSEC_ubsec_close(fd);
882
883 ret = p_UBSEC_ubsec_bits_to_bytes(k_len);
884err:
885 return ret;
886 }
887
888static int ubsec_dh_generate_key (DH *dh)
889 {
890 int ret = 0,
891 random_bits = 0,
892 pub_key_len = 0,
893 priv_key_len = 0,
894 fd;
895 BIGNUM *pub_key = NULL;
896 BIGNUM *priv_key = NULL;
897
898 /*
899 * How many bits should Random x be? dh_key.c
900 * sets the range from 0 to num_bits(modulus) ???
901 */
902
903 if (dh->priv_key == NULL)
904 {
905 priv_key = BN_new();
906 if (priv_key == NULL) goto err;
907 priv_key_len = BN_num_bits(dh->p);
908 bn_wexpand(priv_key, dh->p->top);
909 do
910 if (!BN_rand_range(priv_key, dh->p)) goto err;
911 while (BN_is_zero(priv_key));
912 random_bits = BN_num_bits(priv_key);
913 }
914 else
915 {
916 priv_key = dh->priv_key;
917 }
918
919 if (dh->pub_key == NULL)
920 {
921 pub_key = BN_new();
922 pub_key_len = BN_num_bits(dh->p);
923 bn_wexpand(pub_key, dh->p->top);
924 if(pub_key == NULL) goto err;
925 }
926 else
927 {
928 pub_key = dh->pub_key;
929 }
930
931 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
932 {
933 const DH_METHOD *meth;
934 ENGINEerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
935 meth = DH_OpenSSL();
936 ret = meth->generate_key(dh);
937 goto err;
938 }
939
940 if (p_UBSEC_diffie_hellman_generate_ioctl(fd,
941 (unsigned char *)priv_key->d, &priv_key_len,
942 (unsigned char *)pub_key->d, &pub_key_len,
943 (unsigned char *)dh->g->d, BN_num_bits(dh->g),
944 (unsigned char *)dh->p->d, BN_num_bits(dh->p),
945 0, 0, random_bits) != 0)
946 {
947 /* Hardware's a no go, failover to software */
948 const DH_METHOD *meth;
949
950 ENGINEerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_REQUEST_FAILED);
951 p_UBSEC_ubsec_close(fd);
952
953 meth = DH_OpenSSL();
954 ret = meth->generate_key(dh);
955
956 goto err;
957 }
958
959 p_UBSEC_ubsec_close(fd);
960
961 dh->pub_key = pub_key;
962 dh->pub_key->top = (pub_key_len + BN_BITS2-1) / BN_BITS2;
963 dh->priv_key = priv_key;
964 dh->priv_key->top = (priv_key_len + BN_BITS2-1) / BN_BITS2;
965
966 ret = 1;
967err:
968 return ret;
969 }
970#endif
971
972#if NOT_USED
973static int ubsec_rand_bytes(unsigned char * buf,
974 int num)
975 {
976 int ret = 0,
977 fd;
978
979 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
980 {
981 const RAND_METHOD *meth;
982 ENGINEerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
983 num = p_UBSEC_ubsec_bits_to_bytes(num);
984 meth = RAND_SSLeay();
985 meth->seed(buf, num);
986 ret = meth->bytes(buf, num);
987 goto err;
988 }
989
990 num *= 8; /* bytes to bits */
991
992 if (p_UBSEC_rng_ioctl(fd,
993 UBSEC_RNG_DIRECT,
994 buf,
995 &num) != 0)
996 {
997 /* Hardware's a no go, failover to software */
998 const RAND_METHOD *meth;
999
1000 ENGINEerr(UBSEC_F_UBSEC_RNG_BYTES, UBSEC_R_REQUEST_FAILED);
1001 p_UBSEC_ubsec_close(fd);
1002
1003 num = p_UBSEC_ubsec_bits_to_bytes(num);
1004 meth = RAND_SSLeay();
1005 meth->seed(buf, num);
1006 ret = meth->bytes(buf, num);
1007
1008 goto err;
1009 }
1010
1011 p_UBSEC_ubsec_close(fd);
1012
1013 ret = 1;
1014err:
1015 return(ret);
1016 }
1017
1018
1019static int ubsec_rand_status(void)
1020 {
1021 return 0;
1022 }
1023#endif
1024
1025/* This stuff is needed if this ENGINE is being compiled into a self-contained
1026 * shared-library. */
1027#ifdef ENGINE_DYNAMIC_SUPPORT
1028static int bind_fn(ENGINE *e, const char *id)
1029 {
1030 if(id && (strcmp(id, engine_ubsec_id) != 0))
1031 return 0;
1032 if(!bind_helper(e))
1033 return 0;
1034 return 1;
1035 }
1036IMPLEMENT_DYNAMIC_CHECK_FN()
1037IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
1038#endif /* ENGINE_DYNAMIC_SUPPORT */
1039
1040#endif /* !OPENSSL_NO_HW_UBSEC */
1041#endif /* !OPENSSL_NO_HW */
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-26 12:56:17 +0000