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