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