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 (
 410         !(p1 = (t_UBSEC_ubsec_bytes_to_bits *) DSO_bind_func(ubsec_dso, UBSEC_F1)) ||
 411         !(p2 = (t_UBSEC_ubsec_bits_to_bytes *) DSO_bind_func(ubsec_dso, UBSEC_F2)) ||
 412         !(p3 = (t_UBSEC_ubsec_open *) DSO_bind_func(ubsec_dso, UBSEC_F3)) ||
 413         !(p4 = (t_UBSEC_ubsec_close *) DSO_bind_func(ubsec_dso, UBSEC_F4)) ||
 414 #ifndef OPENSSL_NO_DH
 415         !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *)
 416                                 DSO_bind_func(ubsec_dso, UBSEC_F5)) ||
 417         !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
 418                                 DSO_bind_func(ubsec_dso, UBSEC_F6)) ||
 419 #endif
 420 /* #ifndef OPENSSL_NO_RSA */
 421         !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F7)) ||
 422         !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F8)) ||
 423 /* #endif */
 424 #ifndef OPENSSL_NO_DSA
 425         !(p9 = (t_UBSEC_dsa_sign_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F9)) ||
 426         !(p10 = (t_UBSEC_dsa_verify_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F10)) ||
 427 #endif
 428         !(p11 = (t_UBSEC_math_accelerate_ioctl *)
 429                                 DSO_bind_func(ubsec_dso, UBSEC_F11)) ||
 430         !(p12 = (t_UBSEC_rng_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F12)) ||
 431         !(p13 = (t_UBSEC_max_key_len_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F13)))
 432                 {
 433                 UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_DSO_FAILURE);
 434                 goto err;
 435                 }
 436
 437         /* Copy the pointers */
 438         p_UBSEC_ubsec_bytes_to_bits = p1;
 439         p_UBSEC_ubsec_bits_to_bytes = p2;
 440         p_UBSEC_ubsec_open = p3;
 441         p_UBSEC_ubsec_close = p4;
 442 #ifndef OPENSSL_NO_DH
 443         p_UBSEC_diffie_hellman_generate_ioctl = p5;
 444         p_UBSEC_diffie_hellman_agree_ioctl = p6;
 445 #endif
 446 #ifndef OPENSSL_NO_RSA
 447         p_UBSEC_rsa_mod_exp_ioctl = p7;
 448         p_UBSEC_rsa_mod_exp_crt_ioctl = p8;
 449 #endif
 450 #ifndef OPENSSL_NO_DSA
 451         p_UBSEC_dsa_sign_ioctl = p9;
 452         p_UBSEC_dsa_verify_ioctl = p10;
 453 #endif
 454         p_UBSEC_math_accelerate_ioctl = p11;
 455         p_UBSEC_rng_ioctl = p12;
 456         p_UBSEC_max_key_len_ioctl = p13;
 457
 458         /* Perform an open to see if there's actually any unit running. */
 459         if (((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0) && (p_UBSEC_max_key_len_ioctl(fd, &max_key_len) == 0))
 460         {
 461            p_UBSEC_ubsec_close(fd);
 462            return 1;
 463         }
 464         else
 465         {
 466           UBSECerr(UBSEC_F_UBSEC_INIT, UBSEC_R_UNIT_FAILURE);
 467         }
 468
 469 err:
 470         if(ubsec_dso)
 471                 DSO_free(ubsec_dso);
 472         ubsec_dso = NULL;
 473         p_UBSEC_ubsec_bytes_to_bits = NULL;
 474         p_UBSEC_ubsec_bits_to_bytes = NULL;
 475         p_UBSEC_ubsec_open = NULL;
 476         p_UBSEC_ubsec_close = NULL;
 477 #ifndef OPENSSL_NO_DH
 478         p_UBSEC_diffie_hellman_generate_ioctl = NULL;
 479         p_UBSEC_diffie_hellman_agree_ioctl = NULL;
 480 #endif
 481 #ifndef OPENSSL_NO_RSA
 482         p_UBSEC_rsa_mod_exp_ioctl = NULL;
 483         p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
 484 #endif
 485 #ifndef OPENSSL_NO_DSA
 486         p_UBSEC_dsa_sign_ioctl = NULL;
 487         p_UBSEC_dsa_verify_ioctl = NULL;
 488 #endif
 489         p_UBSEC_math_accelerate_ioctl = NULL;
 490         p_UBSEC_rng_ioctl = NULL;
 491         p_UBSEC_max_key_len_ioctl = NULL;
 492
 493         return 0;
 494         }
 495
 496 static int ubsec_finish(ENGINE *e)
 497         {
 498         free_UBSEC_LIBNAME();
 499         if(ubsec_dso == NULL)
 500                 {
 501                 UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_NOT_LOADED);
 502                 return 0;
 503                 }
 504         if(!DSO_free(ubsec_dso))
 505                 {
 506                 UBSECerr(UBSEC_F_UBSEC_FINISH, UBSEC_R_DSO_FAILURE);
 507                 return 0;
 508                 }
 509         ubsec_dso = NULL;
 510         p_UBSEC_ubsec_bytes_to_bits = NULL;
 511         p_UBSEC_ubsec_bits_to_bytes = NULL;
 512         p_UBSEC_ubsec_open = NULL;
 513         p_UBSEC_ubsec_close = NULL;
 514 #ifndef OPENSSL_NO_DH
 515         p_UBSEC_diffie_hellman_generate_ioctl = NULL;
 516         p_UBSEC_diffie_hellman_agree_ioctl = NULL;
 517 #endif
 518 #ifndef OPENSSL_NO_RSA
 519         p_UBSEC_rsa_mod_exp_ioctl = NULL;
 520         p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
 521 #endif
 522 #ifndef OPENSSL_NO_DSA
 523         p_UBSEC_dsa_sign_ioctl = NULL;
 524         p_UBSEC_dsa_verify_ioctl = NULL;
 525 #endif
 526         p_UBSEC_math_accelerate_ioctl = NULL;
 527         p_UBSEC_rng_ioctl = NULL;
 528         p_UBSEC_max_key_len_ioctl = NULL;
 529         return 1;
 530         }
 531
 532 static int ubsec_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
 533         {
 534         int initialised = ((ubsec_dso == NULL) ? 0 : 1);
 535         switch(cmd)
 536                 {
 537         case UBSEC_CMD_SO_PATH:
 538                 if(p == NULL)
 539                         {
 540                         UBSECerr(UBSEC_F_UBSEC_CTRL,ERR_R_PASSED_NULL_PARAMETER);
 541                         return 0;
 542                         }
 543                 if(initialised)
 544                         {
 545                         UBSECerr(UBSEC_F_UBSEC_CTRL,UBSEC_R_ALREADY_LOADED);
 546                         return 0;
 547                         }
 548                 return set_UBSEC_LIBNAME((const char *)p);
 549         default:
 550                 break;
 551                 }
 552         UBSECerr(UBSEC_F_UBSEC_CTRL,UBSEC_R_CTRL_COMMAND_NOT_IMPLEMENTED);
 553         return 0;
 554         }
 555
 556 static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
 557                 const BIGNUM *m, BN_CTX *ctx)
 558         {
 559         int     y_len = 0;
 560         int     fd;
 561
 562         if(ubsec_dso == NULL)
 563         {
 564                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_NOT_LOADED);
 565                 return 0;
 566         }
 567
 568         /* Check if hardware can't handle this argument. */
 569         y_len = BN_num_bits(m);
 570         if (y_len > max_key_len) {
 571                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 572                 return BN_mod_exp(r, a, p, m, ctx);
 573         }
 574
 575         if(!bn_wexpand(r, m->top))
 576         {
 577                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_BN_EXPAND_FAIL);
 578                 return 0;
 579         }
 580
 581         if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
 582                 fd = 0;
 583                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_UNIT_FAILURE);
 584                 return BN_mod_exp(r, a, p, m, ctx);
 585         }
 586
 587         if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a),
 588                 (unsigned char *)m->d, BN_num_bits(m), (unsigned char *)p->d,
 589                 BN_num_bits(p), (unsigned char *)r->d, &y_len) != 0)
 590         {
 591                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP, UBSEC_R_REQUEST_FAILED);
 592                 p_UBSEC_ubsec_close(fd);
 593
 594                 return BN_mod_exp(r, a, p, m, ctx);
 595         }
 596
 597         p_UBSEC_ubsec_close(fd);
 598
 599         r->top = (BN_num_bits(m)+BN_BITS2-1)/BN_BITS2;
 600         return 1;
 601         }
 602
 603 #ifndef OPENSSL_NO_RSA
 604 static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
 605         {
 606         int to_return = 0;
 607
 608         if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp)
 609                 {
 610                 UBSECerr(UBSEC_F_UBSEC_RSA_MOD_EXP, UBSEC_R_MISSING_KEY_COMPONENTS);
 611                 goto err;
 612                 }
 613
 614         to_return = ubsec_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
 615                     rsa->dmq1, rsa->iqmp, ctx);
 616         if (to_return == FAIL_TO_SOFTWARE)
 617         {
 618           /*
 619            * Do in software as hardware failed.
 620            */
 621            const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
 622            to_return = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
 623         }
 624 err:
 625         return to_return;
 626         }
 627
 628 static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
 629                         const BIGNUM *q, const BIGNUM *dp,
 630                         const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx)
 631         {
 632         int     y_len,
 633                 fd;
 634
 635         y_len = BN_num_bits(p) + BN_num_bits(q);
 636
 637         /* Check if hardware can't handle this argument. */
 638         if (y_len > max_key_len) {
 639                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 640                 return FAIL_TO_SOFTWARE;
 641         }
 642
 643         if (!bn_wexpand(r, p->top + q->top + 1)) {
 644                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_BN_EXPAND_FAIL);
 645                 return 0;
 646         }
 647
 648         if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
 649                 fd = 0;
 650                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_UNIT_FAILURE);
 651                 return FAIL_TO_SOFTWARE;
 652         }
 653
 654         if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd,
 655                 (unsigned char *)a->d, BN_num_bits(a),
 656                 (unsigned char *)qinv->d, BN_num_bits(qinv),
 657                 (unsigned char *)dp->d, BN_num_bits(dp),
 658                 (unsigned char *)p->d, BN_num_bits(p),
 659                 (unsigned char *)dq->d, BN_num_bits(dq),
 660                 (unsigned char *)q->d, BN_num_bits(q),
 661                 (unsigned char *)r->d,  &y_len) != 0) {
 662                 UBSECerr(UBSEC_F_UBSEC_MOD_EXP_CRT, UBSEC_R_REQUEST_FAILED);
 663                 p_UBSEC_ubsec_close(fd);
 664                 return FAIL_TO_SOFTWARE;
 665         }
 666
 667         p_UBSEC_ubsec_close(fd);
 668
 669         r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1)/BN_BITS2;
 670         return 1;
 671 }
 672 #endif
 673
 674 #ifndef OPENSSL_NO_DSA
 675 #ifdef NOT_USED
 676 static int ubsec_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
 677                 BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
 678                 BN_CTX *ctx, BN_MONT_CTX *in_mont)
 679         {
 680         BIGNUM t;
 681         int to_return = 0;
 682
 683         BN_init(&t);
 684         /* let rr = a1 ^ p1 mod m */
 685         if (!ubsec_mod_exp(rr,a1,p1,m,ctx)) goto end;
 686         /* let t = a2 ^ p2 mod m */
 687         if (!ubsec_mod_exp(&t,a2,p2,m,ctx)) goto end;
 688         /* let rr = rr * t mod m */
 689         if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
 690         to_return = 1;
 691 end:
 692         BN_free(&t);
 693         return to_return;
 694         }
 695
 696 static int ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
 697                 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
 698                 BN_MONT_CTX *m_ctx)
 699         {
 700         return ubsec_mod_exp(r, a, p, m, ctx);
 701         }
 702 #endif
 703 #endif
 704
 705 #ifndef OPENSSL_NO_RSA
 706
 707 /*
 708  * This function is aliased to mod_exp (with the mont stuff dropped).
 709  */
 710 static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
 711                 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
 712         {
 713         int ret = 0;
 714
 715         /* Do in software if the key is too large for the hardware. */
 716         if (BN_num_bits(m) > max_key_len)
 717                 {
 718                 const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
 719                 ret = (*meth->bn_mod_exp)(r, a, p, m, ctx, m_ctx);
 720                 }
 721         else
 722                 {
 723                 ret = ubsec_mod_exp(r, a, p, m, ctx);
 724                 }
 725
 726         return ret;
 727         }
 728 #endif
 729
 730 #ifndef OPENSSL_NO_DH
 731 /* This function is aliased to mod_exp (with the dh and mont dropped). */
 732 static int ubsec_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
 733                 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
 734                 BN_MONT_CTX *m_ctx)
 735         {
 736         return ubsec_mod_exp(r, a, p, m, ctx);
 737         }
 738 #endif
 739
 740 #ifndef OPENSSL_NO_DSA
 741 static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
 742         {
 743         DSA_SIG *to_return = NULL;
 744         int s_len = 160, r_len = 160, d_len, fd;
 745         BIGNUM m, *r=NULL, *s=NULL;
 746
 747         BN_init(&m);
 748
 749         s = BN_new();
 750         r = BN_new();
 751         if ((s == NULL) || (r==NULL))
 752                 goto err;
 753
 754         d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen);
 755
 756         if(!bn_wexpand(r, (160+BN_BITS2-1)/BN_BITS2) ||
 757            (!bn_wexpand(s, (160+BN_BITS2-1)/BN_BITS2))) {
 758                 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
 759                 goto err;
 760         }
 761
 762         if (BN_bin2bn(dgst,dlen,&m) == NULL) {
 763                 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
 764                 goto err;
 765         }
 766
 767         if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
 768                 const DSA_METHOD *meth;
 769                 fd = 0;
 770                 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_UNIT_FAILURE);
 771                 meth = DSA_OpenSSL();
 772                 to_return =  meth->dsa_do_sign(dgst, dlen, dsa);
 773                 goto err;
 774         }
 775
 776         if (p_UBSEC_dsa_sign_ioctl(fd, 0, /* compute hash before signing */
 777                 (unsigned char *)dgst, d_len,
 778                 NULL, 0,  /* compute random value */
 779                 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
 780                 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
 781                 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
 782                 (unsigned char *)dsa->priv_key->d, BN_num_bits(dsa->priv_key),
 783                 (unsigned char *)r->d, &r_len,
 784                 (unsigned char *)s->d, &s_len ) != 0) {
 785                 const DSA_METHOD *meth;
 786
 787                 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_REQUEST_FAILED);
 788                 p_UBSEC_ubsec_close(fd);
 789                 meth = DSA_OpenSSL();
 790                 to_return = meth->dsa_do_sign(dgst, dlen, dsa);
 791
 792                 goto err;
 793         }
 794
 795         p_UBSEC_ubsec_close(fd);
 796
 797         r->top = (160+BN_BITS2-1)/BN_BITS2;
 798         s->top = (160+BN_BITS2-1)/BN_BITS2;
 799
 800         to_return = DSA_SIG_new();
 801         if(to_return == NULL) {
 802                 UBSECerr(UBSEC_F_UBSEC_DSA_DO_SIGN, UBSEC_R_BN_EXPAND_FAIL);
 803                 goto err;
 804         }
 805
 806         to_return->r = r;
 807         to_return->s = s;
 808
 809 err:
 810         if (!to_return) {
 811                 if (r) BN_free(r);
 812                 if (s) BN_free(s);
 813         }
 814         BN_clear_free(&m);
 815         return to_return;
 816 }
 817
 818 static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
 819                                 DSA_SIG *sig, DSA *dsa)
 820         {
 821         int v_len, d_len;
 822         int to_return = 0;
 823         int fd;
 824         BIGNUM v, *pv = &v;
 825
 826         BN_init(&v);
 827
 828         if(!bn_wexpand(pv, dsa->p->top)) {
 829                 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_BN_EXPAND_FAIL);
 830                 goto err;
 831         }
 832
 833         v_len = BN_num_bits(dsa->p);
 834
 835         d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len);
 836
 837         if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
 838                 const DSA_METHOD *meth;
 839                 fd = 0;
 840                 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_UNIT_FAILURE);
 841                 meth = DSA_OpenSSL();
 842                 to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa);
 843                 goto err;
 844         }
 845
 846         if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */
 847                 (unsigned char *)dgst, d_len,
 848                 (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
 849                 (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
 850                 (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
 851                 (unsigned char *)dsa->pub_key->d, BN_num_bits(dsa->pub_key),
 852                 (unsigned char *)sig->r->d, BN_num_bits(sig->r),
 853                 (unsigned char *)sig->s->d, BN_num_bits(sig->s),
 854                 (unsigned char *)v.d, &v_len) != 0) {
 855                 const DSA_METHOD *meth;
 856                 UBSECerr(UBSEC_F_UBSEC_DSA_VERIFY, UBSEC_R_REQUEST_FAILED);
 857                 p_UBSEC_ubsec_close(fd);
 858
 859                 meth = DSA_OpenSSL();
 860                 to_return = meth->dsa_do_verify(dgst, dgst_len, sig, dsa);
 861
 862                 goto err;
 863         }
 864
 865         p_UBSEC_ubsec_close(fd);
 866
 867         to_return = 1;
 868 err:
 869         BN_clear_free(&v);
 870         return to_return;
 871         }
 872 #endif
 873
 874 #ifndef OPENSSL_NO_DH
 875 static int ubsec_dh_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh)
 876         {
 877         int      ret      = -1,
 878                  k_len,
 879                  fd;
 880
 881         k_len = BN_num_bits(dh->p);
 882
 883         if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
 884                 {
 885                 const DH_METHOD *meth;
 886                 UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_UNIT_FAILURE);
 887                 meth = DH_OpenSSL();
 888                 ret = meth->compute_key(key, pub_key, dh);
 889                 goto err;
 890                 }
 891
 892         if (p_UBSEC_diffie_hellman_agree_ioctl(fd,
 893                                                (unsigned char *)dh->priv_key->d, BN_num_bits(dh->priv_key),
 894                                                (unsigned char *)pub_key->d, BN_num_bits(pub_key),
 895                                                (unsigned char *)dh->p->d, BN_num_bits(dh->p),
 896                                                key, &k_len) != 0)
 897                 {
 898                 /* Hardware's a no go, failover to software */
 899                 const DH_METHOD *meth;
 900                 UBSECerr(UBSEC_F_UBSEC_DH_COMPUTE_KEY, UBSEC_R_REQUEST_FAILED);
 901                 p_UBSEC_ubsec_close(fd);
 902
 903                 meth = DH_OpenSSL();
 904                 ret = meth->compute_key(key, pub_key, dh);
 905
 906                 goto err;
 907                 }
 908
 909         p_UBSEC_ubsec_close(fd);
 910
 911         ret = p_UBSEC_ubsec_bits_to_bytes(k_len);
 912 err:
 913         return ret;
 914         }
 915
 916 static int ubsec_dh_generate_key(DH *dh)
 917         {
 918         int      ret               = 0,
 919                  random_bits       = 0,
 920                  pub_key_len       = 0,
 921                  priv_key_len      = 0,
 922                  fd;
 923         BIGNUM   *pub_key          = NULL;
 924         BIGNUM   *priv_key         = NULL;
 925
 926         /*
 927          *  How many bits should Random x be? dh_key.c
 928          *  sets the range from 0 to num_bits(modulus) ???
 929          */
 930
 931         if (dh->priv_key == NULL)
 932                 {
 933                 priv_key = BN_new();
 934                 if (priv_key == NULL) goto err;
 935                 priv_key_len = BN_num_bits(dh->p);
 936                 if(bn_wexpand(priv_key, dh->p->top) == NULL) goto err;
 937                 do
 938                         if (!BN_rand_range(priv_key, dh->p)) goto err;
 939                 while (BN_is_zero(priv_key));
 940                 random_bits = BN_num_bits(priv_key);
 941                 }
 942         else
 943                 {
 944                 priv_key = dh->priv_key;
 945                 }
 946
 947         if (dh->pub_key == NULL)
 948                 {
 949                 pub_key = BN_new();
 950                 pub_key_len = BN_num_bits(dh->p);
 951                 if(bn_wexpand(pub_key, dh->p->top) == NULL) goto err;
 952                 if(pub_key == NULL) goto err;
 953                 }
 954         else
 955                 {
 956                 pub_key = dh->pub_key;
 957                 }
 958
 959         if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
 960                 {
 961                 const DH_METHOD *meth;
 962                 UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY, UBSEC_R_UNIT_FAILURE);
 963                 meth = DH_OpenSSL();
 964                 ret = meth->generate_key(dh);
 965                 goto err;
 966                 }
 967
 968         if (p_UBSEC_diffie_hellman_generate_ioctl(fd,
 969                                                   (unsigned char *)priv_key->d, &priv_key_len,
 970                                                   (unsigned char *)pub_key->d,  &pub_key_len,
 971                                                   (unsigned char *)dh->g->d, BN_num_bits(dh->g),
 972                                                   (unsigned char *)dh->p->d, BN_num_bits(dh->p),
 973                                                   0, 0, random_bits) != 0)
 974                 {
 975                 /* Hardware's a no go, failover to software */
 976                 const DH_METHOD *meth;
 977
 978                 UBSECerr(UBSEC_F_UBSEC_DH_GENERATE_KEY, UBSEC_R_REQUEST_FAILED);
 979                 p_UBSEC_ubsec_close(fd);
 980
 981                 meth = DH_OpenSSL();
 982                 ret = meth->generate_key(dh);
 983
 984                 goto err;
 985                 }
 986
 987         p_UBSEC_ubsec_close(fd);
 988
 989         dh->pub_key = pub_key;
 990         dh->pub_key->top = (pub_key_len + BN_BITS2-1) / BN_BITS2;
 991         dh->priv_key = priv_key;
 992         dh->priv_key->top = (priv_key_len + BN_BITS2-1) / BN_BITS2;
 993
 994         ret = 1;
 995 err:
 996         return ret;
 997         }
 998 #endif
 999
1000 #ifdef NOT_USED
1001 static int ubsec_rand_bytes(unsigned char * buf,
1002                             int num)
1003         {
1004         int      ret      = 0,
1005                  fd;
1006
1007         if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0)
1008                 {
1009                 const RAND_METHOD *meth;
1010                 UBSECerr(UBSEC_F_UBSEC_RAND_BYTES, UBSEC_R_UNIT_FAILURE);
1011                 num = p_UBSEC_ubsec_bits_to_bytes(num);
1012                 meth = RAND_SSLeay();
1013                 meth->seed(buf, num);
1014                 ret = meth->bytes(buf, num);
1015                 goto err;
1016                 }
1017
1018         num *= 8; /* bytes to bits */
1019
1020         if (p_UBSEC_rng_ioctl(fd,
1021                               UBSEC_RNG_DIRECT,
1022                               buf,
1023                               &num) != 0)
1024                 {
1025                 /* Hardware's a no go, failover to software */
1026                 const RAND_METHOD *meth;
1027
1028                 UBSECerr(UBSEC_F_UBSEC_RAND_BYTES, UBSEC_R_REQUEST_FAILED);
1029                 p_UBSEC_ubsec_close(fd);
1030
1031                 num = p_UBSEC_ubsec_bits_to_bytes(num);
1032                 meth = RAND_SSLeay();
1033                 meth->seed(buf, num);
1034                 ret = meth->bytes(buf, num);
1035
1036                 goto err;
1037                 }
1038
1039         p_UBSEC_ubsec_close(fd);
1040
1041         ret = 1;
1042 err:
1043         return(ret);
1044         }
1045
1046
1047 static int ubsec_rand_status(void)
1048         {
1049         return 0;
1050         }
1051 #endif
1052
1053 /* This stuff is needed if this ENGINE is being compiled into a self-contained
1054  * shared-library. */
1055 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
1056 static int bind_fn(ENGINE *e, const char *id)
1057         {
1058         if(id && (strcmp(id, engine_ubsec_id) != 0))
1059                 return 0;
1060         if(!bind_helper(e))
1061                 return 0;
1062         return 1;
1063         }
1064 IMPLEMENT_DYNAMIC_CHECK_FN()
1065 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
1066 #endif /* OPENSSL_NO_DYNAMIC_ENGINE */
1067
1068 #endif /* !OPENSSL_NO_HW_UBSEC */
1069 #endif /* !OPENSSL_NO_HW */