engines/e_ubsec.c

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