?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Remove building with NOCRYPTO option
[minix.git] / crypto / external / bsd / openssl / dist / engines / e_ubsec.c
blob6f09ffb965ca66847d775ec3ed862a3f9fb3127d
1 /* crypto/engine/hw_ubsec.c */
2 /*
3 * Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL project
4 * 2000. Cloned shamelessly by Joe Tardo.
5 */
6 /* ====================================================================
7 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60 #include <stdio.h>
61 #include <string.h>
62 #include <openssl/crypto.h>
63 #include <openssl/buffer.h>
64 #include <openssl/dso.h>
65 #include <openssl/engine.h>
66 #ifndef OPENSSL_NO_RSA
67 # include <openssl/rsa.h>
68 #endif
69 #ifndef OPENSSL_NO_DSA
70 # include <openssl/dsa.h>
71 #endif
72 #ifndef OPENSSL_NO_DH
73 # include <openssl/dh.h>
74 #endif
75 #include <openssl/bn.h>
76
77 #ifndef OPENSSL_NO_HW
78 # ifndef OPENSSL_NO_HW_UBSEC
79
80 # ifdef FLAT_INC
81 # include "hw_ubsec.h"
82 # else
83 # include "vendor_defns/hw_ubsec.h"
84 # endif
85
86 # define UBSEC_LIB_NAME "ubsec engine"
87 # include "e_ubsec_err.c"
88
89 # define FAIL_TO_SOFTWARE -15
90
91 static int ubsec_destroy(ENGINE *e);
92 static int ubsec_init(ENGINE *e);
93 static int ubsec_finish(ENGINE *e);
94 static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void));
95 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
96 const BIGNUM *m, BN_CTX *ctx);
97 # ifndef OPENSSL_NO_RSA
98 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
99 const BIGNUM *q, const BIGNUM *dp,
100 const BIGNUM *dq, const BIGNUM *qinv,
101 BN_CTX *ctx);
102 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
103 BN_CTX *ctx);
104 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
105 const BIGNUM *m, BN_CTX *ctx,
106 BN_MONT_CTX *m_ctx);
107 # endif
108 # ifndef OPENSSL_NO_DSA
109 # ifdef NOT_USED
110 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
111 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
112 BN_CTX *ctx, BN_MONT_CTX *in_mont);
113 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
114 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
115 BN_MONT_CTX *m_ctx);
116 # endif
117 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen,
118 DSA *dsa);
119 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
120 DSA_SIG *sig, DSA *dsa);
121 # endif
122 # ifndef OPENSSL_NO_DH
123 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
124 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
125 BN_MONT_CTX *m_ctx);
126 static int ubsec_dh_compute_key(unsigned char *key, const BIGNUM *pub_key,
127 DH *dh);
128 static int ubsec_dh_generate_key(DH *dh);
129 # endif
130
131 # ifdef NOT_USED
132 static int ubsec_rand_bytes(unsigned char *buf, int num);
133 static int ubsec_rand_status(void);
134 # endif
135
136 # define UBSEC_CMD_SO_PATH ENGINE_CMD_BASE
137 static const ENGINE_CMD_DEFN ubsec_cmd_defns[] = {
138 {UBSEC_CMD_SO_PATH,
139 "SO_PATH",
140 "Specifies the path to the 'ubsec' shared library",
141 ENGINE_CMD_FLAG_STRING},
142 {0, NULL, NULL, 0}
143 };
144
145 # ifndef OPENSSL_NO_RSA
146 /* Our internal RSA_METHOD that we provide pointers to */
147 static RSA_METHOD ubsec_rsa = {
148 "UBSEC RSA method",
149 NULL,
150 NULL,
151 NULL,
152 NULL,
153 ubsec_rsa_mod_exp,
154 ubsec_mod_exp_mont,
155 NULL,
156 NULL,
157 0,
158 NULL,
159 NULL,
160 NULL,
161 NULL
162 };
163 # endif
164
165 # ifndef OPENSSL_NO_DSA
166 /* Our internal DSA_METHOD that we provide pointers to */
167 static DSA_METHOD ubsec_dsa = {
168 "UBSEC DSA method",
169 ubsec_dsa_do_sign, /* dsa_do_sign */
170 NULL, /* dsa_sign_setup */
171 ubsec_dsa_verify, /* dsa_do_verify */
172 NULL, /* ubsec_dsa_mod_exp *//* dsa_mod_exp */
173 NULL, /* ubsec_mod_exp_dsa *//* bn_mod_exp */
174 NULL, /* init */
175 NULL, /* finish */
176 0, /* flags */
177 NULL, /* app_data */
178 NULL, /* dsa_paramgen */
179 NULL /* dsa_keygen */
180 };
181 # endif
182
183 # ifndef OPENSSL_NO_DH
184 /* Our internal DH_METHOD that we provide pointers to */
185 static DH_METHOD ubsec_dh = {
186 "UBSEC DH method",
187 ubsec_dh_generate_key,
188 ubsec_dh_compute_key,
189 ubsec_mod_exp_dh,
190 NULL,
191 NULL,
192 0,
193 NULL,
194 NULL
195 };
196 # endif
197
198 /* Constants used when creating the ENGINE */
199 static const char *engine_ubsec_id = "ubsec";
200 static const char *engine_ubsec_name = "UBSEC hardware engine support";
201
202 /*
203 * This internal function is used by ENGINE_ubsec() and possibly by the
204 * "dynamic" ENGINE support too
205 */
206 static int bind_helper(ENGINE *e)
207 {
208 # ifndef OPENSSL_NO_RSA
209 const RSA_METHOD *meth1;
210 # endif
211 # ifndef OPENSSL_NO_DH
212 # ifndef HAVE_UBSEC_DH
213 const DH_METHOD *meth3;
214 # endif /* HAVE_UBSEC_DH */
215 # endif
216 if (!ENGINE_set_id(e, engine_ubsec_id) ||
217 !ENGINE_set_name(e, engine_ubsec_name) ||
218 # ifndef OPENSSL_NO_RSA
219 !ENGINE_set_RSA(e, &ubsec_rsa) ||
220 # endif
221 # ifndef OPENSSL_NO_DSA
222 !ENGINE_set_DSA(e, &ubsec_dsa) ||
223 # endif
224 # ifndef OPENSSL_NO_DH
225 !ENGINE_set_DH(e, &ubsec_dh) ||
226 # endif
227 !ENGINE_set_destroy_function(e, ubsec_destroy) ||
228 !ENGINE_set_init_function(e, ubsec_init) ||
229 !ENGINE_set_finish_function(e, ubsec_finish) ||
230 !ENGINE_set_ctrl_function(e, ubsec_ctrl) ||
231 !ENGINE_set_cmd_defns(e, ubsec_cmd_defns))
232 return 0;
233
234 # ifndef OPENSSL_NO_RSA
235 /*
236 * We know that the "PKCS1_SSLeay()" functions hook properly to the
237 * Broadcom-specific mod_exp and mod_exp_crt so we use those functions.
238 * NB: We don't use ENGINE_openssl() or anything "more generic" because
239 * something like the RSAref code may not hook properly, and if you own
240 * one of these cards then you have the right to do RSA operations on it
241 * anyway!
242 */
243 meth1 = RSA_PKCS1_SSLeay();
244 ubsec_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
245 ubsec_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
246 ubsec_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
247 ubsec_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
248 # endif
249
250 # ifndef OPENSSL_NO_DH
251 # ifndef HAVE_UBSEC_DH
252 /* Much the same for Diffie-Hellman */
253 meth3 = DH_OpenSSL();
254 ubsec_dh.generate_key = meth3->generate_key;
255 ubsec_dh.compute_key = meth3->compute_key;
256 # endif /* HAVE_UBSEC_DH */
257 # endif
258
259 /* Ensure the ubsec error handling is set up */
260 ERR_load_UBSEC_strings();
261 return 1;
262 }
263
264 # ifdef OPENSSL_NO_DYNAMIC_ENGINE
265 static ENGINE *engine_ubsec(void)
266 {
267 ENGINE *ret = ENGINE_new();
268 if (!ret)
269 return NULL;
270 if (!bind_helper(ret)) {
271 ENGINE_free(ret);
272 return NULL;
273 }
274 return ret;
275 }
276
277 void ENGINE_load_ubsec(void)
278 {
279 /* Copied from eng_[openssl|dyn].c */
280 ENGINE *toadd = engine_ubsec();
281 if (!toadd)
282 return;
283 ENGINE_add(toadd);
284 ENGINE_free(toadd);
285 ERR_clear_error();
286 }
287 # endif
288
289 /*
290 * This is a process-global DSO handle used for loading and unloading the
291 * UBSEC library. NB: This is only set (or unset) during an init() or
292 * finish() call (reference counts permitting) and they're operating with
293 * global locks, so this should be thread-safe implicitly.
294 */
295
296 static DSO *ubsec_dso = NULL;
297
298 /*
299 * These are the function pointers that are (un)set when the library has
300 * successfully (un)loaded.
301 */
302
303 static t_UBSEC_ubsec_bytes_to_bits *p_UBSEC_ubsec_bytes_to_bits = NULL;
304 static t_UBSEC_ubsec_bits_to_bytes *p_UBSEC_ubsec_bits_to_bytes = NULL;
305 static t_UBSEC_ubsec_open *p_UBSEC_ubsec_open = NULL;
306 static t_UBSEC_ubsec_close *p_UBSEC_ubsec_close = NULL;
307 # ifndef OPENSSL_NO_DH
308 static t_UBSEC_diffie_hellman_generate_ioctl
309 * p_UBSEC_diffie_hellman_generate_ioctl = NULL;
310 static t_UBSEC_diffie_hellman_agree_ioctl *p_UBSEC_diffie_hellman_agree_ioctl
311 = NULL;
312 # endif
313 # ifndef OPENSSL_NO_RSA
314 static t_UBSEC_rsa_mod_exp_ioctl *p_UBSEC_rsa_mod_exp_ioctl = NULL;
315 static t_UBSEC_rsa_mod_exp_crt_ioctl *p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
316 # endif
317 # ifndef OPENSSL_NO_DSA
318 static t_UBSEC_dsa_sign_ioctl *p_UBSEC_dsa_sign_ioctl = NULL;
319 static t_UBSEC_dsa_verify_ioctl *p_UBSEC_dsa_verify_ioctl = NULL;
320 # endif
321 static t_UBSEC_math_accelerate_ioctl *p_UBSEC_math_accelerate_ioctl = NULL;
322 static t_UBSEC_rng_ioctl *p_UBSEC_rng_ioctl = NULL;
323 static t_UBSEC_max_key_len_ioctl *p_UBSEC_max_key_len_ioctl = NULL;
324
325 static int max_key_len = 1024; /* ??? */
326
327 /*
328 * These are the static string constants for the DSO file name and the function
329 * symbol names to bind to.
330 */
331
332 static const char *UBSEC_LIBNAME = NULL;
333 static const char *get_UBSEC_LIBNAME(void)
334 {
335 if (UBSEC_LIBNAME)
336 return UBSEC_LIBNAME;
337 return "ubsec";
338 }
339
340 static void free_UBSEC_LIBNAME(void)
341 {
342 if (UBSEC_LIBNAME)
343 OPENSSL_free((void *)UBSEC_LIBNAME);
344 UBSEC_LIBNAME = NULL;
345 }
346
347 static long set_UBSEC_LIBNAME(const char *name)
348 {
349 free_UBSEC_LIBNAME();
350 return (((UBSEC_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0);
351 }
352
353 static const char *UBSEC_F1 = "ubsec_bytes_to_bits";
354 static const char *UBSEC_F2 = "ubsec_bits_to_bytes";
355 static const char *UBSEC_F3 = "ubsec_open";
356 static const char *UBSEC_F4 = "ubsec_close";
357 # ifndef OPENSSL_NO_DH
358 static const char *UBSEC_F5 = "diffie_hellman_generate_ioctl";
359 static const char *UBSEC_F6 = "diffie_hellman_agree_ioctl";
360 # endif
361 /* #ifndef OPENSSL_NO_RSA */
362 static const char *UBSEC_F7 = "rsa_mod_exp_ioctl";
363 static const char *UBSEC_F8 = "rsa_mod_exp_crt_ioctl";
364 /* #endif */
365 # ifndef OPENSSL_NO_DSA
366 static const char *UBSEC_F9 = "dsa_sign_ioctl";
367 static const char *UBSEC_F10 = "dsa_verify_ioctl";
368 # endif
369 static const char *UBSEC_F11 = "math_accelerate_ioctl";
370 static const char *UBSEC_F12 = "rng_ioctl";
371 static const char *UBSEC_F13 = "ubsec_max_key_len_ioctl";
372
373 /* Destructor (complements the "ENGINE_ubsec()" constructor) */
374 static int ubsec_destroy(ENGINE *e)
375 {
376 free_UBSEC_LIBNAME();
377 ERR_unload_UBSEC_strings();
378 return 1;
379 }
380
381 /* (de)initialisation functions. */
382 static int ubsec_init(ENGINE *e)
383 {
384 t_UBSEC_ubsec_bytes_to_bits *p1;
385 t_UBSEC_ubsec_bits_to_bytes *p2;
386 t_UBSEC_ubsec_open *p3;
387 t_UBSEC_ubsec_close *p4;
388 # ifndef OPENSSL_NO_DH
389 t_UBSEC_diffie_hellman_generate_ioctl *p5;
390 t_UBSEC_diffie_hellman_agree_ioctl *p6;
391 # endif
392 /* #ifndef OPENSSL_NO_RSA */
393 t_UBSEC_rsa_mod_exp_ioctl *p7;
394 t_UBSEC_rsa_mod_exp_crt_ioctl *p8;
395 /* #endif */
396 # ifndef OPENSSL_NO_DSA
397 t_UBSEC_dsa_sign_ioctl *p9;
398 t_UBSEC_dsa_verify_ioctl *p10;
399 # endif
400 t_UBSEC_math_accelerate_ioctl *p11;
401 t_UBSEC_rng_ioctl *p12;
402 t_UBSEC_max_key_len_ioctl *p13;
403 int fd = 0;
404
405 if (ubsec_dso != NULL) {
406 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_ALREADY_LOADED);
407 goto err;
408 }
409 /*
410 * Attempt to load libubsec.so/ubsec.dll/whatever.
411 */
412 ubsec_dso = DSO_load(NULL, get_UBSEC_LIBNAME(), NULL, 0);
413 if (ubsec_dso == NULL) {
414 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE);
415 goto err;
416 }
417
418 if (!(p1 = (t_UBSEC_ubsec_bytes_to_bits *)
419 DSO_bind_func(ubsec_dso, UBSEC_F1))
420 || !(p2 = (t_UBSEC_ubsec_bits_to_bytes *)
421 DSO_bind_func(ubsec_dso, UBSEC_F2))
422 || !(p3 = (t_UBSEC_ubsec_open *)
423 DSO_bind_func(ubsec_dso, UBSEC_F3))
424 || !(p4 = (t_UBSEC_ubsec_close *)
425 DSO_bind_func(ubsec_dso, UBSEC_F4))
426 # ifndef OPENSSL_NO_DH
427 || !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *)
428 DSO_bind_func(ubsec_dso, UBSEC_F5))
429 || !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
430 DSO_bind_func(ubsec_dso, UBSEC_F6))
431 # endif
432 /* #ifndef OPENSSL_NO_RSA */
433 || !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *)
434 DSO_bind_func(ubsec_dso, UBSEC_F7))
435 || !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *)
436 DSO_bind_func(ubsec_dso, UBSEC_F8))
437 /* #endif */
438 # ifndef OPENSSL_NO_DSA
439 || !(p9 = (t_UBSEC_dsa_sign_ioctl *)
440 DSO_bind_func(ubsec_dso, UBSEC_F9))
441 || !(p10 = (t_UBSEC_dsa_verify_ioctl *)
442 DSO_bind_func(ubsec_dso, UBSEC_F10))
443 # endif
444 || !(p11 = (t_UBSEC_math_accelerate_ioctl *)
445 DSO_bind_func(ubsec_dso, UBSEC_F11))
446 || !(p12 = (t_UBSEC_rng_ioctl *)
447 DSO_bind_func(ubsec_dso, UBSEC_F12))
448 || !(p13 = (t_UBSEC_max_key_len_ioctl *)
449 DSO_bind_func(ubsec_dso, UBSEC_F13))) {
450 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE);
451 goto err;
452 }
453
454 /* Copy the pointers */
455 p_UBSEC_ubsec_bytes_to_bits = p1;
456 p_UBSEC_ubsec_bits_to_bytes = p2;
457 p_UBSEC_ubsec_open = p3;
458 p_UBSEC_ubsec_close = p4;
459 # ifndef OPENSSL_NO_DH
460 p_UBSEC_diffie_hellman_generate_ioctl = p5;
461 p_UBSEC_diffie_hellman_agree_ioctl = p6;
462 # endif
463 # ifndef OPENSSL_NO_RSA
464 p_UBSEC_rsa_mod_exp_ioctl = p7;
465 p_UBSEC_rsa_mod_exp_crt_ioctl = p8;
466 # endif
467 # ifndef OPENSSL_NO_DSA
468 p_UBSEC_dsa_sign_ioctl = p9;
469 p_UBSEC_dsa_verify_ioctl = p10;
470 # endif
471 p_UBSEC_math_accelerate_ioctl = p11;
472 p_UBSEC_rng_ioctl = p12;
473 p_UBSEC_max_key_len_ioctl = p13;
474
475 /* Perform an open to see if there's actually any unit running. */
476 if (((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0)
477 && (p_UBSEC_max_key_len_ioctl(fd, &max_key_len) == 0)) {
478 p_UBSEC_ubsec_close(fd);
479 return 1;
480 } else {
481 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
482 }
483
484 err:
485 if (ubsec_dso)
486 DSO_free(ubsec_dso);
487 ubsec_dso = NULL;
488 p_UBSEC_ubsec_bytes_to_bits = NULL;
489 p_UBSEC_ubsec_bits_to_bytes = NULL;
490 p_UBSEC_ubsec_open = NULL;
491 p_UBSEC_ubsec_close = NULL;
492 # ifndef OPENSSL_NO_DH
493 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
494 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
495 # endif
496 # ifndef OPENSSL_NO_RSA
497 p_UBSEC_rsa_mod_exp_ioctl = NULL;
498 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
499 # endif
500 # ifndef OPENSSL_NO_DSA
501 p_UBSEC_dsa_sign_ioctl = NULL;
502 p_UBSEC_dsa_verify_ioctl = NULL;
503 # endif
504 p_UBSEC_math_accelerate_ioctl = NULL;
505 p_UBSEC_rng_ioctl = NULL;
506 p_UBSEC_max_key_len_ioctl = NULL;
507
508 return 0;
509 }
510
511 static int ubsec_finish(ENGINE *e)
512 {
513 free_UBSEC_LIBNAME();
514 if (ubsec_dso == NULL) {
515 UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_NOT_LOADED);
516 return 0;
517 }
518 if (!DSO_free(ubsec_dso)) {
519 UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_DSO_FAILURE);
520 return 0;
521 }
522 ubsec_dso = NULL;
523 p_UBSEC_ubsec_bytes_to_bits = NULL;
524 p_UBSEC_ubsec_bits_to_bytes = NULL;
525 p_UBSEC_ubsec_open = NULL;
526 p_UBSEC_ubsec_close = NULL;
527 # ifndef OPENSSL_NO_DH
528 p_UBSEC_diffie_hellman_generate_ioctl = NULL;
529 p_UBSEC_diffie_hellman_agree_ioctl = NULL;
530 # endif
531 # ifndef OPENSSL_NO_RSA
532 p_UBSEC_rsa_mod_exp_ioctl = NULL;
533 p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
534 # endif
535 # ifndef OPENSSL_NO_DSA
536 p_UBSEC_dsa_sign_ioctl = NULL;
537 p_UBSEC_dsa_verify_ioctl = NULL;
538 # endif
539 p_UBSEC_math_accelerate_ioctl = NULL;
540 p_UBSEC_rng_ioctl = NULL;
541 p_UBSEC_max_key_len_ioctl = NULL;
542 return 1;
543 }
544
545 static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
546 {
547 int initialised = ((ubsec_dso == NULL) ? 0 : 1);
548 switch (cmd) {
549 case UBSEC_CMD_SO_PATH:
550 if (p == NULL) {
551 UBSECerr(UBSEC_F_UBSEC_CTRL, ERR_R_PASSED_NULL_PARAMETER);
552 return 0;
553 }
554 if (initialised) {
555 UBSECerr(UBSEC_F_UBSEC_CTRL, UBSEC_R_ALREADY_LOADED);
556 return 0;
557 }
558 return set_UBSEC_LIBNAME((const char *)p);
559 default:
560 break;
561 }
562 UBSECerr(UBSEC_F_UBSEC_CTRL, UBSEC_R_CTRL_COMMAND_NOT_IMPLEMENTED);
563 return 0;
564 }
565
566 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
567 const BIGNUM *m, BN_CTX *ctx)
568 {
569 int y_len = 0;
570 int fd;
571
572 if (ubsec_dso == NULL) {
573 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_NOT_LOADED);
574 return 0;
575 }
576
577 /* Check if hardware can't handle this argument. */
578 y_len = BN_num_bits(m);
579 if (y_len > max_key_len) {
580 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
581 return BN_mod_exp(r, a, p, m, ctx);
582 }
583
584 if (!bn_wexpand(r, m->top)) {
585 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_BN_EXPAND_FAIL);
586 return 0;
587 }
588
589 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
590 fd = 0;
591 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_UNIT_FAILURE);
592 return BN_mod_exp(r, a, p, m, ctx);
593 }
594
595 if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a),
596 (unsigned char *)m->d, BN_num_bits(m),
597 (unsigned char *)p->d, BN_num_bits(p),
598 (unsigned char *)r->d, &y_len) != 0) {
599 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_REQUEST_FAILED);
600 p_UBSEC_ubsec_close(fd);
601
602 return BN_mod_exp(r, a, p, m, ctx);
603 }
604
605 p_UBSEC_ubsec_close(fd);
606
607 r->top = (BN_num_bits(m) + BN_BITS2 - 1) / BN_BITS2;
608 return 1;
609 }
610
611 # ifndef OPENSSL_NO_RSA
612 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
613 BN_CTX *ctx)
614 {
615 int to_return = 0;
616
617 if (!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) {
618 UBSECerr(UBSEC_F_UBSEC_RSA_MOD_EXP, UBSEC_R_MISSING_KEY_COMPONENTS);
619 goto err;
620 }
621
622 to_return = ubsec_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
623 rsa->dmq1, rsa->iqmp, ctx);
624 if (to_return == FAIL_TO_SOFTWARE) {
625 /*
626 * Do in software as hardware failed.
627 */
628 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
629 to_return = (*meth->rsa_mod_exp) (r0, I, rsa, ctx);
630 }
631 err:
632 return to_return;
633 }
634
635 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
636 const BIGNUM *q, const BIGNUM *dp,
637 const BIGNUM *dq, const BIGNUM *qinv,
638 BN_CTX *ctx)
639 {
640 int y_len, fd;
641
642 y_len = BN_num_bits(p) + BN_num_bits(q);
643
644 /* Check if hardware can't handle this argument. */
645 if (y_len > max_key_len) {
646 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT,
647 UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
648 return FAIL_TO_SOFTWARE;
649 }
650
651 if (!bn_wexpand(r, p->top + q->top + 1)) {
652 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_BN_EXPAND_FAIL);
653 return 0;
654 }
655
656 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
657 fd = 0;
658 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_UNIT_FAILURE);
659 return FAIL_TO_SOFTWARE;
660 }
661
662 if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd,
663 (unsigned char *)a->d, BN_num_bits(a),
664 (unsigned char *)qinv->d,
665 BN_num_bits(qinv),
666 (unsigned char *)dp->d, BN_num_bits(dp),
667 (unsigned char *)p->d, BN_num_bits(p),
668 (unsigned char *)dq->d, BN_num_bits(dq),
669 (unsigned char *)q->d, BN_num_bits(q),
670 (unsigned char *)r->d, &y_len) != 0) {
671 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_REQUEST_FAILED);
672 p_UBSEC_ubsec_close(fd);
673 return FAIL_TO_SOFTWARE;
674 }
675
676 p_UBSEC_ubsec_close(fd);
677
678 r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1) / BN_BITS2;
679 return 1;
680 }
681 # endif
682
683 # ifndef OPENSSL_NO_DSA
684 # ifdef NOT_USED
685 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
686 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
687 BN_CTX *ctx, BN_MONT_CTX *in_mont)
688 {
689 BIGNUM t;
690 int to_return = 0;
691
692 BN_init(&t);
693 /* let rr = a1 ^ p1 mod m */
694 if (!ubsec_mod_exp(rr, a1, p1, m, ctx))
695 goto end;
696 /* let t = a2 ^ p2 mod m */
697 if (!ubsec_mod_exp(&t, a2, p2, m, ctx))
698 goto end;
699 /* let rr = rr * t mod m */
700 if (!BN_mod_mul(rr, rr, &t, m, ctx))
701 goto end;
702 to_return = 1;
703 end:
704 BN_free(&t);
705 return to_return;
706 }
707
708 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
709 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
710 BN_MONT_CTX *m_ctx)
711 {
712 return ubsec_mod_exp(r, a, p, m, ctx);
713 }
714 # endif
715 # endif
716
717 # ifndef OPENSSL_NO_RSA
718
719 /*
720 * This function is aliased to mod_exp (with the mont stuff dropped).
721 */
722 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
723 const BIGNUM *m, BN_CTX *ctx,
724 BN_MONT_CTX *m_ctx)
725 {
726 int ret = 0;
727
728 /* Do in software if the key is too large for the hardware. */
729 if (BN_num_bits(m) > max_key_len) {
730 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
731 ret = (*meth->bn_mod_exp) (r, a, p, m, ctx, m_ctx);
732 } else {
733 ret = ubsec_mod_exp(r, a, p, m, ctx);
734 }
735
736 return ret;
737 }
738 # endif
739
740 # ifndef OPENSSL_NO_DH
741 /* This function is aliased to mod_exp (with the dh and mont dropped). */
742 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
743 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
744 BN_MONT_CTX *m_ctx)
745 {
746 return ubsec_mod_exp(r, a, p, m, ctx);
747 }
748 # endif
749
750 # ifndef OPENSSL_NO_DSA
751 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen,
752 DSA *dsa)
753 {
754 DSA_SIG *to_return = NULL;
755 int s_len = 160, r_len = 160, d_len, fd;
756 BIGNUM m, *r = NULL, *s = NULL;
757
758 BN_init(&m);
759
760 s = BN_new();
761 r = BN_new();
762 if ((s == NULL) || (r == NULL))
763 goto err;
764
765 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen);
766
767 if (!bn_wexpand(r, (160 + BN_BITS2 - 1) / BN_BITS2) ||
768 (!bn_wexpand(s, (160 + BN_BITS2 - 1) / BN_BITS2))) {
769 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
770 goto err;
771 }
772
773 if (BN_bin2bn(dgst, dlen, &m) == NULL) {
774 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
775 goto err;
776 }
777
778 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
779 const DSA_METHOD *meth;
780 fd = 0;
781 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_UNIT_FAILURE);
782 meth = DSA_OpenSSL();
783 to_return = meth->dsa_do_sign(dgst, dlen, dsa);
784 goto err;
785 }
786
787 if (p_UBSEC_dsa_sign_ioctl(fd,
788 /* compute hash before signing */
789 0, (unsigned char *)dgst, d_len, NULL,
790 /* compute random value */
791 0,
792 (unsigned char *)dsa->p->d,
793 BN_num_bits(dsa->p),
794 (unsigned char *)dsa->q->d,
795 BN_num_bits(dsa->q),
796 (unsigned char *)dsa->g->d,
797 BN_num_bits(dsa->g),
798 (unsigned char *)dsa->priv_key->d,
799 BN_num_bits(dsa->priv_key),
800 (unsigned char *)r->d, &r_len,
801 (unsigned char *)s->d, &s_len) != 0) {
802 const DSA_METHOD *meth;
803
804 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_REQUEST_FAILED);
805 p_UBSEC_ubsec_close(fd);
806 meth = DSA_OpenSSL();
807 to_return = meth->dsa_do_sign(dgst, dlen, dsa);
808
809 goto err;
810 }
811
812 p_UBSEC_ubsec_close(fd);
813
814 r->top = (160 + BN_BITS2 - 1) / BN_BITS2;
815 s->top = (160 + BN_BITS2 - 1) / BN_BITS2;
816
817 to_return = DSA_SIG_new();
818 if (to_return == NULL) {
819 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
820 goto err;
821 }
822
823 to_return->r = r;
824 to_return->s = s;
825
826 err:
827 if (!to_return) {
828 if (r)
829 BN_free(r);
830 if (s)
831 BN_free(s);
832 }
833 BN_clear_free(&m);
834 return to_return;
835 }
836
837 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
838 DSA_SIG *sig, DSA *dsa)
839 {
840 int v_len, d_len;
841 int to_return = 0;
842 int fd;
843 BIGNUM v, *pv = &v;
844
845 BN_init(&v);
846
847 if (!bn_wexpand(pv, dsa->p->top)) {
848 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_BN_EXPAND_FAIL);
849 goto err;
850 }
851
852 v_len = BN_num_bits(dsa->p);
853
854 d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len);
855
856 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
857 const DSA_METHOD *meth;
858 fd = 0;
859 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_UNIT_FAILURE);
860 meth = DSA_OpenSSL();
861 to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa);
862 goto err;
863 }
864
865 if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */
866 (unsigned char *)dgst, d_len,
867 (unsigned char *)dsa->p->d,
868 BN_num_bits(dsa->p),
869 (unsigned char *)dsa->q->d,
870 BN_num_bits(dsa->q),
871 (unsigned char *)dsa->g->d,
872 BN_num_bits(dsa->g),
873 (unsigned char *)dsa->pub_key->d,
874 BN_num_bits(dsa->pub_key),
875 (unsigned char *)sig->r->d,
876 BN_num_bits(sig->r),
877 (unsigned char *)sig->s->d,
878 BN_num_bits(sig->s), (unsigned char *)v.d,
879 &v_len) != 0) {
880 const DSA_METHOD *meth;
881 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_REQUEST_FAILED);
882 p_UBSEC_ubsec_close(fd);
883
884 meth = DSA_OpenSSL();
885 to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa);
886
887 goto err;
888 }
889
890 p_UBSEC_ubsec_close(fd);
891
892 to_return = 1;
893 err:
894 BN_clear_free(&v);
895 return to_return;
896 }
897 # endif
898
899 # ifndef OPENSSL_NO_DH
900 static int ubsec_dh_compute_key(unsigned char *key, const BIGNUM *pub_key,
901 DH *dh)
902 {
903 int ret = -1, k_len, fd;
904
905 k_len = BN_num_bits(dh->p);
906
907 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
908 const DH_METHOD *meth;
909 UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_UNIT_FAILURE);
910 meth = DH_OpenSSL();
911 ret = meth->compute_key(key, pub_key, dh);
912 goto err;
913 }
914
915 if (p_UBSEC_diffie_hellman_agree_ioctl(fd,
916 (unsigned char *)dh->priv_key->d,
917 BN_num_bits(dh->priv_key),
918 (unsigned char *)pub_key->d,
919 BN_num_bits(pub_key),
920 (unsigned char *)dh->p->d,
921 BN_num_bits(dh->p), key,
922 &k_len) != 0) {
923 /* Hardware's a no go, failover to software */
924 const DH_METHOD *meth;
925 UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_REQUEST_FAILED);
926 p_UBSEC_ubsec_close(fd);
927
928 meth = DH_OpenSSL();
929 ret = meth->compute_key(key, pub_key, dh);
930
931 goto err;
932 }
933
934 p_UBSEC_ubsec_close(fd);
935
936 ret = p_UBSEC_ubsec_bits_to_bytes(k_len);
937 err:
938 return ret;
939 }
940
941 static int ubsec_dh_generate_key(DH *dh)
942 {
943 int ret = 0, random_bits = 0, pub_key_len = 0, priv_key_len = 0, fd;
944 BIGNUM *pub_key = NULL;
945 BIGNUM *priv_key = NULL;
946
947 /*
948 * How many bits should Random x be? dh_key.c
949 * sets the range from 0 to num_bits(modulus) ???
950 */
951
952 if (dh->priv_key == NULL) {
953 priv_key = BN_new();
954 if (priv_key == NULL)
955 goto err;
956 priv_key_len = BN_num_bits(dh->p);
957 if (bn_wexpand(priv_key, dh->p->top) == NULL)
958 goto err;
959 do
960 if (!BN_rand_range(priv_key, dh->p))
961 goto err;
962 while (BN_is_zero(priv_key)) ;
963 random_bits = BN_num_bits(priv_key);
964 } else {
965 priv_key = dh->priv_key;
966 }
967
968 if (dh->pub_key == NULL) {
969 pub_key = BN_new();
970 if (pub_key == NULL)
971 goto err;
972 pub_key_len = BN_num_bits(dh->p);
973 if (bn_wexpand(pub_key, dh->p->top) == NULL)
974 goto err;
975 } else {
976 pub_key = dh->pub_key;
977 }
978
979 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
980 const DH_METHOD *meth;
981 UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY, UBSEC_R_UNIT_FAILURE);
982 meth = DH_OpenSSL();
983 ret = meth->generate_key(dh);
984 goto err;
985 }
986
987 if (p_UBSEC_diffie_hellman_generate_ioctl(fd,
988 (unsigned char *)priv_key->d,
989 &priv_key_len,
990 (unsigned char *)pub_key->d,
991 &pub_key_len,
992 (unsigned char *)dh->g->d,
993 BN_num_bits(dh->g),
994 (unsigned char *)dh->p->d,
995 BN_num_bits(dh->p), 0, 0,
996 random_bits) != 0) {
997 /* Hardware's a no go, failover to software */
998 const DH_METHOD *meth;
999
1000 UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY, UBSEC_R_REQUEST_FAILED);
1001 p_UBSEC_ubsec_close(fd);
1002
1003 meth = DH_OpenSSL();
1004 ret = meth->generate_key(dh);
1005
1006 goto err;
1007 }
1008
1009 p_UBSEC_ubsec_close(fd);
1010
1011 dh->pub_key = pub_key;
1012 dh->pub_key->top = (pub_key_len + BN_BITS2 - 1) / BN_BITS2;
1013 dh->priv_key = priv_key;
1014 dh->priv_key->top = (priv_key_len + BN_BITS2 - 1) / BN_BITS2;
1015
1016 ret = 1;
1017 err:
1018 return ret;
1019 }
1020 # endif
1021
1022 # ifdef NOT_USED
1023 static int ubsec_rand_bytes(unsigned char *buf, int num)
1024 {
1025 int ret = 0, fd;
1026
1027 if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
1028 const RAND_METHOD *meth;
1029 UBSECerr(UBSEC_F_UBSEC_RAND_BYTES, UBSEC_R_UNIT_FAILURE);
1030 num = p_UBSEC_ubsec_bits_to_bytes(num);
1031 meth = RAND_SSLeay();
1032 meth->seed(buf, num);
1033 ret = meth->bytes(buf, num);
1034 goto err;
1035 }
1036
1037 num *= 8; /* bytes to bits */
1038
1039 if (p_UBSEC_rng_ioctl(fd, UBSEC_RNG_DIRECT, buf, &num) != 0) {
1040 /* Hardware's a no go, failover to software */
1041 const RAND_METHOD *meth;
1042
1043 UBSECerr(UBSEC_F_UBSEC_RAND_BYTES, UBSEC_R_REQUEST_FAILED);
1044 p_UBSEC_ubsec_close(fd);
1045
1046 num = p_UBSEC_ubsec_bits_to_bytes(num);
1047 meth = RAND_SSLeay();
1048 meth->seed(buf, num);
1049 ret = meth->bytes(buf, num);
1050
1051 goto err;
1052 }
1053
1054 p_UBSEC_ubsec_close(fd);
1055
1056 ret = 1;
1057 err:
1058 return (ret);
1059 }
1060
1061 static int ubsec_rand_status(void)
1062 {
1063 return 0;
1064 }
1065 # endif
1066
1067 /*
1068 * This stuff is needed if this ENGINE is being compiled into a
1069 * self-contained shared-library.
1070 */
1071 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
1072 static int bind_fn(ENGINE *e, const char *id)
1073 {
1074 if (id && (strcmp(id, engine_ubsec_id) != 0))
1075 return 0;
1076 if (!bind_helper(e))
1077 return 0;
1078 return 1;
1079 }
1080
1081 IMPLEMENT_DYNAMIC_CHECK_FN()
1082 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
1083 # endif /* OPENSSL_NO_DYNAMIC_ENGINE */
1084 # endif /* !OPENSSL_NO_HW_UBSEC */
1085 #endif /* !OPENSSL_NO_HW */
MINIX 3 (repo.or.cz mirror)