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