crypto/openssl/engines/e_capi.c

   1 /* engines/e_capi.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  */
  53
  54
  55 #include <stdio.h>
  56 #include <string.h>
  57 #include <openssl/crypto.h>
  58 #include <openssl/buffer.h>
  59 #include <openssl/bn.h>
  60
  61 #ifdef OPENSSL_SYS_WIN32
  62 #ifndef OPENSSL_NO_CAPIENG
  63
  64 #include <openssl/rsa.h>
  65
  66 #include <windows.h>
  67
  68 #ifndef _WIN32_WINNT
  69 #define _WIN32_WINNT 0x0400
  70 #endif
  71
  72 #include <wincrypt.h>
  73
  74 #undef X509_EXTENSIONS
  75 #undef X509_CERT_PAIR
  76
  77 /* Definitions which may be missing from earlier version of headers */
  78 #ifndef CERT_STORE_OPEN_EXISTING_FLAG
  79 #define CERT_STORE_OPEN_EXISTING_FLAG                   0x00004000
  80 #endif
  81
  82 #ifndef CERT_STORE_CREATE_NEW_FLAG
  83 #define CERT_STORE_CREATE_NEW_FLAG                      0x00002000
  84 #endif
  85
  86 #ifndef CERT_SYSTEM_STORE_CURRENT_USER
  87 #define CERT_SYSTEM_STORE_CURRENT_USER                  0x00010000
  88 #endif
  89
  90 #include <openssl/engine.h>
  91 #include <openssl/pem.h>
  92 #include <openssl/x509v3.h>
  93
  94 #include "e_capi_err.h"
  95 #include "e_capi_err.c"
  96
  97
  98 static const char *engine_capi_id = "capi";
  99 static const char *engine_capi_name = "CryptoAPI ENGINE";
 100
 101 typedef struct CAPI_CTX_st CAPI_CTX;
 102 typedef struct CAPI_KEY_st CAPI_KEY;
 103
 104 static void capi_addlasterror(void);
 105 static void capi_adderror(DWORD err);
 106
 107 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
 108
 109 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
 110 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
 111 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
 112 void capi_free_key(CAPI_KEY *key);
 113
 114 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
 115
 116 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
 117
 118 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
 119         UI_METHOD *ui_method, void *callback_data);
 120 static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
 121              unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
 122 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
 123                 unsigned char *to, RSA *rsa, int padding);
 124 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
 125                 unsigned char *to, RSA *rsa, int padding);
 126 static int capi_rsa_free(RSA *rsa);
 127
 128 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
 129                                                         DSA *dsa);
 130 static int capi_dsa_free(DSA *dsa);
 131
 132 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
 133         STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
 134         STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
 135
 136 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
 137 #ifdef OPENSSL_CAPIENG_DIALOG
 138 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
 139 #endif
 140
 141 typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
 142                                                 LPCWSTR, DWORD, DWORD,
 143                                                 void *);
 144 typedef HWND (WINAPI *GETCONSWIN)(void);
 145
 146 /* This structure contains CAPI ENGINE specific data:
 147  * it contains various global options and affects how
 148  * other functions behave.
 149  */
 150
 151 #define CAPI_DBG_TRACE  2
 152 #define CAPI_DBG_ERROR  1
 153
 154 struct CAPI_CTX_st {
 155         int debug_level;
 156         char *debug_file;
 157         /* Parameters to use for container lookup */
 158         DWORD keytype;
 159         LPSTR cspname;
 160         DWORD csptype;
 161         /* Certificate store name to use */
 162         LPSTR storename;
 163         LPSTR ssl_client_store;
 164         /* System store flags */
 165         DWORD store_flags;
 166
 167 /* Lookup string meanings in load_private_key */
 168 /* Substring of subject: uses "storename" */
 169 #define CAPI_LU_SUBSTR          1
 170 /* Friendly name: uses storename */
 171 #define CAPI_LU_FNAME           2
 172 /* Container name: uses cspname, keytype */
 173 #define CAPI_LU_CONTNAME        3
 174         int lookup_method;
 175 /* Info to dump with dumpcerts option */
 176 /* Issuer and serial name strings */
 177 #define CAPI_DMP_SUMMARY        0x1
 178 /* Friendly name */
 179 #define CAPI_DMP_FNAME          0x2
 180 /* Full X509_print dump */
 181 #define CAPI_DMP_FULL           0x4
 182 /* Dump PEM format certificate */
 183 #define CAPI_DMP_PEM            0x8
 184 /* Dump pseudo key (if possible) */
 185 #define CAPI_DMP_PSKEY          0x10
 186 /* Dump key info (if possible) */
 187 #define CAPI_DMP_PKEYINFO       0x20
 188
 189         DWORD dump_flags;
 190         int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
 191
 192         CERTDLG certselectdlg;
 193         GETCONSWIN getconswindow;
 194 };
 195
 196
 197 static CAPI_CTX *capi_ctx_new();
 198 static void capi_ctx_free(CAPI_CTX *ctx);
 199 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
 200 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
 201
 202 #define CAPI_CMD_LIST_CERTS             ENGINE_CMD_BASE
 203 #define CAPI_CMD_LOOKUP_CERT            (ENGINE_CMD_BASE + 1)
 204 #define CAPI_CMD_DEBUG_LEVEL            (ENGINE_CMD_BASE + 2)
 205 #define CAPI_CMD_DEBUG_FILE             (ENGINE_CMD_BASE + 3)
 206 #define CAPI_CMD_KEYTYPE                (ENGINE_CMD_BASE + 4)
 207 #define CAPI_CMD_LIST_CSPS              (ENGINE_CMD_BASE + 5)
 208 #define CAPI_CMD_SET_CSP_IDX            (ENGINE_CMD_BASE + 6)
 209 #define CAPI_CMD_SET_CSP_NAME           (ENGINE_CMD_BASE + 7)
 210 #define CAPI_CMD_SET_CSP_TYPE           (ENGINE_CMD_BASE + 8)
 211 #define CAPI_CMD_LIST_CONTAINERS        (ENGINE_CMD_BASE + 9)
 212 #define CAPI_CMD_LIST_OPTIONS           (ENGINE_CMD_BASE + 10)
 213 #define CAPI_CMD_LOOKUP_METHOD          (ENGINE_CMD_BASE + 11)
 214 #define CAPI_CMD_STORE_NAME             (ENGINE_CMD_BASE + 12)
 215 #define CAPI_CMD_STORE_FLAGS            (ENGINE_CMD_BASE + 13)
 216
 217 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
 218         {CAPI_CMD_LIST_CERTS,
 219                 "list_certs",
 220                 "List all certificates in store",
 221                 ENGINE_CMD_FLAG_NO_INPUT},
 222         {CAPI_CMD_LOOKUP_CERT,
 223                 "lookup_cert",
 224                 "Lookup and output certificates",
 225                 ENGINE_CMD_FLAG_STRING},
 226         {CAPI_CMD_DEBUG_LEVEL,
 227                 "debug_level",
 228                 "debug level (1=errors, 2=trace)",
 229                 ENGINE_CMD_FLAG_NUMERIC},
 230         {CAPI_CMD_DEBUG_FILE,
 231                 "debug_file",
 232                 "debugging filename)",
 233                 ENGINE_CMD_FLAG_STRING},
 234         {CAPI_CMD_KEYTYPE,
 235                 "key_type",
 236                 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
 237                 ENGINE_CMD_FLAG_NUMERIC},
 238         {CAPI_CMD_LIST_CSPS,
 239                 "list_csps",
 240                 "List all CSPs",
 241                 ENGINE_CMD_FLAG_NO_INPUT},
 242         {CAPI_CMD_SET_CSP_IDX,
 243                 "csp_idx",
 244                 "Set CSP by index",
 245                 ENGINE_CMD_FLAG_NUMERIC},
 246         {CAPI_CMD_SET_CSP_NAME,
 247                 "csp_name",
 248                 "Set CSP name, (default CSP used if not specified)",
 249                 ENGINE_CMD_FLAG_STRING},
 250         {CAPI_CMD_SET_CSP_TYPE,
 251                 "csp_type",
 252                 "Set CSP type, (default RSA_PROV_FULL)",
 253                 ENGINE_CMD_FLAG_NUMERIC},
 254         {CAPI_CMD_LIST_CONTAINERS,
 255                 "list_containers",
 256                 "list container names",
 257                 ENGINE_CMD_FLAG_NO_INPUT},
 258         {CAPI_CMD_LIST_OPTIONS,
 259                 "list_options",
 260                 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
 261                 "32=private key info)",
 262                 ENGINE_CMD_FLAG_NUMERIC},
 263         {CAPI_CMD_LOOKUP_METHOD,
 264                 "lookup_method",
 265                 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
 266                 ENGINE_CMD_FLAG_NUMERIC},
 267         {CAPI_CMD_STORE_NAME,
 268                 "store_name",
 269                 "certificate store name, default \"MY\"",
 270                 ENGINE_CMD_FLAG_STRING},
 271         {CAPI_CMD_STORE_FLAGS,
 272                 "store_flags",
 273                 "Certificate store flags: 1 = system store",
 274                 ENGINE_CMD_FLAG_NUMERIC},
 275
 276         {0, NULL, NULL, 0}
 277         };
 278
 279 static int capi_idx = -1;
 280 static int rsa_capi_idx = -1;
 281 static int dsa_capi_idx = -1;
 282 static int cert_capi_idx = -1;
 283
 284 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
 285         {
 286         int ret = 1;
 287         CAPI_CTX *ctx;
 288         BIO *out;
 289         if (capi_idx == -1)
 290                 {
 291                 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
 292                 return 0;
 293                 }
 294         ctx = ENGINE_get_ex_data(e, capi_idx);
 295         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 296         switch (cmd)
 297                 {
 298                 case CAPI_CMD_LIST_CSPS:
 299                 ret = capi_list_providers(ctx, out);
 300                 break;
 301
 302                 case CAPI_CMD_LIST_CERTS:
 303                 ret = capi_list_certs(ctx, out, NULL);
 304                 break;
 305
 306                 case CAPI_CMD_LOOKUP_CERT:
 307                 ret = capi_list_certs(ctx, out, p);
 308                 break;
 309
 310                 case CAPI_CMD_LIST_CONTAINERS:
 311                 ret = capi_list_containers(ctx, out);
 312                 break;
 313
 314                 case CAPI_CMD_STORE_NAME:
 315                 if (ctx->storename)
 316                         OPENSSL_free(ctx->storename);
 317                 ctx->storename = BUF_strdup(p);
 318                 CAPI_trace(ctx, "Setting store name to %s\n", p);
 319                 break;
 320
 321                 case CAPI_CMD_STORE_FLAGS:
 322                 if (i & 1)
 323                         {
 324                         ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
 325                         ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
 326                         }
 327                 else
 328                         {
 329                         ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
 330                         ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
 331                         }
 332                 CAPI_trace(ctx, "Setting flags to %d\n", i);
 333                 break;
 334
 335                 case CAPI_CMD_DEBUG_LEVEL:
 336                 ctx->debug_level = (int)i;
 337                 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
 338                 break;
 339
 340                 case CAPI_CMD_DEBUG_FILE:
 341                 ctx->debug_file = BUF_strdup(p);
 342                 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
 343                 break;
 344
 345                 case CAPI_CMD_KEYTYPE:
 346                 ctx->keytype = i;
 347                 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
 348                 break;
 349
 350                 case CAPI_CMD_SET_CSP_IDX:
 351                 ret = capi_ctx_set_provname_idx(ctx, i);
 352                 break;
 353
 354                 case CAPI_CMD_LIST_OPTIONS:
 355                 ctx->dump_flags = i;
 356                 break;
 357
 358                 case CAPI_CMD_LOOKUP_METHOD:
 359                 if (i < 1 || i > 3)
 360                         {
 361                         CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
 362                         return 0;
 363                         }
 364                 ctx->lookup_method = i;
 365                 break;
 366
 367                 case CAPI_CMD_SET_CSP_NAME:
 368                 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
 369                 break;
 370
 371                 case CAPI_CMD_SET_CSP_TYPE:
 372                 ctx->csptype = i;
 373                 break;
 374
 375                 default:
 376                 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
 377                 ret = 0;
 378         }
 379
 380         BIO_free(out);
 381         return ret;
 382
 383         }
 384
 385 static RSA_METHOD capi_rsa_method =
 386         {
 387         "CryptoAPI RSA method",
 388         0,                              /* pub_enc */
 389         0,                              /* pub_dec */
 390         capi_rsa_priv_enc,              /* priv_enc */
 391         capi_rsa_priv_dec,              /* priv_dec */
 392         0,                              /* rsa_mod_exp */
 393         0,                              /* bn_mod_exp */
 394         0,                              /* init */
 395         capi_rsa_free,                  /* finish */
 396         RSA_FLAG_SIGN_VER,              /* flags */
 397         NULL,                           /* app_data */
 398         capi_rsa_sign,                  /* rsa_sign */
 399         0                               /* rsa_verify */
 400         };
 401
 402 static DSA_METHOD capi_dsa_method =
 403         {
 404         "CryptoAPI DSA method",
 405         capi_dsa_do_sign,               /* dsa_do_sign */
 406         0,                              /* dsa_sign_setup */
 407         0,                              /* dsa_do_verify */
 408         0,                              /* dsa_mod_exp */
 409         0,                              /* bn_mod_exp */
 410         0,                              /* init */
 411         capi_dsa_free,                  /* finish */
 412         0,                              /* flags */
 413         NULL,                           /* app_data */
 414         0,                              /* dsa_paramgen */
 415         0                               /* dsa_keygen */
 416         };
 417
 418 static int capi_init(ENGINE *e)
 419         {
 420         CAPI_CTX *ctx;
 421         const RSA_METHOD *ossl_rsa_meth;
 422         const DSA_METHOD *ossl_dsa_meth;
 423
 424         if (capi_idx < 0)
 425                 {
 426                 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
 427                 if (capi_idx < 0)
 428                         goto memerr;
 429
 430                 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
 431
 432                 /* Setup RSA_METHOD */
 433                 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
 434                 ossl_rsa_meth = RSA_PKCS1_SSLeay();
 435                 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
 436                 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
 437                 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
 438                 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
 439
 440                 /* Setup DSA Method */
 441                 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
 442                 ossl_dsa_meth = DSA_OpenSSL();
 443                 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
 444                 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
 445                 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
 446                 }
 447
 448         ctx = capi_ctx_new();
 449         if (!ctx)
 450                 goto memerr;
 451
 452         ENGINE_set_ex_data(e, capi_idx, ctx);
 453
 454 #ifdef OPENSSL_CAPIENG_DIALOG
 455         {
 456         HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
 457         HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
 458         if (cryptui)
 459                 ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore");
 460         if (kernel)
 461                 ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow");
 462         if (cryptui && !OPENSSL_isservice())
 463                 ctx->client_cert_select = cert_select_dialog;
 464         }
 465 #endif
 466
 467
 468         return 1;
 469
 470         memerr:
 471         CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
 472         return 0;
 473
 474         return 1;
 475         }
 476
 477 static int capi_destroy(ENGINE *e)
 478         {
 479         ERR_unload_CAPI_strings();
 480         return 1;
 481         }
 482
 483 static int capi_finish(ENGINE *e)
 484         {
 485         CAPI_CTX *ctx;
 486         ctx = ENGINE_get_ex_data(e, capi_idx);
 487         capi_ctx_free(ctx);
 488         ENGINE_set_ex_data(e, capi_idx, NULL);
 489         return 1;
 490         }
 491
 492
 493 /* CryptoAPI key application data. This contains
 494  * a handle to the private key container (for sign operations)
 495  * and a handle to the key (for decrypt operations).
 496  */
 497
 498 struct CAPI_KEY_st
 499         {
 500         /* Associated certificate context (if any) */
 501         PCCERT_CONTEXT pcert;
 502         HCRYPTPROV hprov;
 503         HCRYPTKEY key;
 504         DWORD keyspec;
 505         };
 506
 507 static int bind_capi(ENGINE *e)
 508         {
 509         if (!ENGINE_set_id(e, engine_capi_id)
 510                 || !ENGINE_set_name(e, engine_capi_name)
 511                 || !ENGINE_set_init_function(e, capi_init)
 512                 || !ENGINE_set_finish_function(e, capi_finish)
 513                 || !ENGINE_set_destroy_function(e, capi_destroy)
 514                 || !ENGINE_set_RSA(e, &capi_rsa_method)
 515                 || !ENGINE_set_DSA(e, &capi_dsa_method)
 516                 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
 517                 || !ENGINE_set_load_ssl_client_cert_function(e,
 518                                                 capi_load_ssl_client_cert)
 519                 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
 520                 || !ENGINE_set_ctrl_function(e, capi_ctrl))
 521                         return 0;
 522         ERR_load_CAPI_strings();
 523
 524         return 1;
 525
 526         }
 527
 528 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 529 static int bind_helper(ENGINE *e, const char *id)
 530         {
 531         if(id && (strcmp(id, engine_capi_id) != 0))
 532                 return 0;
 533         if(!bind_capi(e))
 534                 return 0;
 535         return 1;
 536         }
 537 IMPLEMENT_DYNAMIC_CHECK_FN()
 538 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
 539 #else
 540 static ENGINE *engine_capi(void)
 541         {
 542         ENGINE *ret = ENGINE_new();
 543         if(!ret)
 544                 return NULL;
 545         if(!bind_capi(ret))
 546                 {
 547                 ENGINE_free(ret);
 548                 return NULL;
 549                 }
 550         return ret;
 551         }
 552
 553 void ENGINE_load_capi(void)
 554         {
 555         /* Copied from eng_[openssl|dyn].c */
 556         ENGINE *toadd = engine_capi();
 557         if(!toadd) return;
 558         ENGINE_add(toadd);
 559         ENGINE_free(toadd);
 560         ERR_clear_error();
 561         }
 562 #endif
 563
 564
 565 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
 566         {
 567         int i;
 568         /* Reverse buffer in place: since this is a keyblob structure
 569          * that will be freed up after conversion anyway it doesn't
 570          * matter if we change it.
 571          */
 572         for(i = 0; i < binlen / 2; i++)
 573                 {
 574                 unsigned char c;
 575                 c = bin[i];
 576                 bin[i] = bin[binlen - i - 1];
 577                 bin[binlen - i - 1] = c;
 578                 }
 579
 580         if (!BN_bin2bn(bin, binlen, bn))
 581                 return 0;
 582         return 1;
 583         }
 584
 585 /* Given a CAPI_KEY get an EVP_PKEY structure */
 586
 587 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
 588         {
 589         unsigned char *pubkey = NULL;
 590         DWORD len;
 591         BLOBHEADER *bh;
 592         RSA *rkey = NULL;
 593         DSA *dkey = NULL;
 594         EVP_PKEY *ret = NULL;
 595         if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
 596                 {
 597                 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
 598                 capi_addlasterror();
 599                 return NULL;
 600                 }
 601
 602         pubkey = OPENSSL_malloc(len);
 603
 604         if (!pubkey)
 605                 goto memerr;
 606
 607         if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
 608                 {
 609                 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
 610                 capi_addlasterror();
 611                 goto err;
 612                 }
 613
 614         bh = (BLOBHEADER *)pubkey;
 615         if (bh->bType != PUBLICKEYBLOB)
 616                 {
 617                 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
 618                 goto err;
 619                 }
 620         if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
 621                 {
 622                 RSAPUBKEY *rp;
 623                 DWORD rsa_modlen;
 624                 unsigned char *rsa_modulus;
 625                 rp = (RSAPUBKEY *)(bh + 1);
 626                 if (rp->magic != 0x31415352)
 627                         {
 628                         char magstr[10];
 629                         BIO_snprintf(magstr, 10, "%lx", rp->magic);
 630                         CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
 631                         ERR_add_error_data(2, "magic=0x", magstr);
 632                         goto err;
 633                         }
 634                 rsa_modulus = (unsigned char *)(rp + 1);
 635                 rkey = RSA_new_method(eng);
 636                 if (!rkey)
 637                         goto memerr;
 638
 639                 rkey->e = BN_new();
 640                 rkey->n = BN_new();
 641
 642                 if (!rkey->e || !rkey->n)
 643                         goto memerr;
 644
 645                 if (!BN_set_word(rkey->e, rp->pubexp))
 646                         goto memerr;
 647
 648                 rsa_modlen = rp->bitlen / 8;
 649                 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
 650                         goto memerr;
 651
 652                 RSA_set_ex_data(rkey, rsa_capi_idx, key);
 653
 654                 if (!(ret = EVP_PKEY_new()))
 655                         goto memerr;
 656
 657                 EVP_PKEY_assign_RSA(ret, rkey);
 658                 rkey = NULL;
 659
 660                 }
 661         else if (bh->aiKeyAlg == CALG_DSS_SIGN)
 662                 {
 663                 DSSPUBKEY *dp;
 664                 DWORD dsa_plen;
 665                 unsigned char *btmp;
 666                 dp = (DSSPUBKEY *)(bh + 1);
 667                 if (dp->magic != 0x31535344)
 668                         {
 669                         char magstr[10];
 670                         BIO_snprintf(magstr, 10, "%lx", dp->magic);
 671                         CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
 672                         ERR_add_error_data(2, "magic=0x", magstr);
 673                         goto err;
 674                         }
 675                 dsa_plen = dp->bitlen / 8;
 676                 btmp = (unsigned char *)(dp + 1);
 677                 dkey = DSA_new_method(eng);
 678                 if (!dkey)
 679                         goto memerr;
 680                 dkey->p = BN_new();
 681                 dkey->q = BN_new();
 682                 dkey->g = BN_new();
 683                 dkey->pub_key = BN_new();
 684                 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
 685                         goto memerr;
 686                 if (!lend_tobn(dkey->p, btmp, dsa_plen))
 687                         goto memerr;
 688                 btmp += dsa_plen;
 689                 if (!lend_tobn(dkey->q, btmp, 20))
 690                         goto memerr;
 691                 btmp += 20;
 692                 if (!lend_tobn(dkey->g, btmp, dsa_plen))
 693                         goto memerr;
 694                 btmp += dsa_plen;
 695                 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
 696                         goto memerr;
 697                 btmp += dsa_plen;
 698
 699                 DSA_set_ex_data(dkey, dsa_capi_idx, key);
 700
 701                 if (!(ret = EVP_PKEY_new()))
 702                         goto memerr;
 703
 704                 EVP_PKEY_assign_DSA(ret, dkey);
 705                 dkey = NULL;
 706                 }
 707         else
 708                 {
 709                 char algstr[10];
 710                 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
 711                 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
 712                 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
 713                 goto err;
 714                 }
 715
 716
 717         err:
 718         if (pubkey)
 719                 OPENSSL_free(pubkey);
 720         if (!ret)
 721                 {
 722                 if (rkey)
 723                         RSA_free(rkey);
 724                 if (dkey)
 725                         DSA_free(dkey);
 726                 }
 727
 728         return ret;
 729
 730 memerr:
 731         CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
 732         goto err;
 733
 734         }
 735
 736 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
 737         UI_METHOD *ui_method, void *callback_data)
 738         {
 739         CAPI_CTX *ctx;
 740         CAPI_KEY *key;
 741         EVP_PKEY *ret;
 742         ctx = ENGINE_get_ex_data(eng, capi_idx);
 743
 744         if (!ctx)
 745                 {
 746                 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
 747                 return NULL;
 748                 }
 749
 750         key = capi_find_key(ctx, key_id);
 751
 752         if (!key)
 753                 return NULL;
 754
 755         ret = capi_get_pkey(eng, key);
 756
 757         if (!ret)
 758                 capi_free_key(key);
 759         return ret;
 760
 761         }
 762
 763 /* CryptoAPI RSA operations */
 764
 765 int capi_rsa_priv_enc(int flen, const unsigned char *from,
 766                 unsigned char *to, RSA *rsa, int padding)
 767         {
 768         CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
 769         return -1;
 770         }
 771
 772 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
 773              unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
 774         {
 775         ALG_ID alg;
 776         HCRYPTHASH hash;
 777         DWORD slen;
 778         unsigned int i;
 779         int ret = -1;
 780         CAPI_KEY *capi_key;
 781         CAPI_CTX *ctx;
 782
 783         ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
 784
 785         CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
 786
 787         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 788         if (!capi_key)
 789                 {
 790                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
 791                 return -1;
 792                 }
 793 /* Convert the signature type to a CryptoAPI algorithm ID */
 794         switch(dtype)
 795                 {
 796         case NID_sha1:
 797                 alg = CALG_SHA1;
 798                 break;
 799
 800         case NID_md5:
 801                 alg = CALG_MD5;
 802                 break;
 803
 804         case NID_md5_sha1:
 805                 alg = CALG_SSL3_SHAMD5;
 806                 break;
 807         default:
 808                 {
 809                 char algstr[10];
 810                 BIO_snprintf(algstr, 10, "%lx", dtype);
 811                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
 812                 ERR_add_error_data(2, "NID=0x", algstr);
 813                 return -1;
 814                 }
 815         }
 816
 817
 818
 819 /* Create the hash object */
 820         if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
 821                 {
 822                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
 823                 capi_addlasterror();
 824                 return -1;
 825                 }
 826 /* Set the hash value to the value passed */
 827
 828         if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
 829                 {
 830                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
 831                 capi_addlasterror();
 832                 goto err;
 833                 }
 834
 835
 836 /* Finally sign it */
 837         slen = RSA_size(rsa);
 838         if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
 839                 {
 840                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
 841                 capi_addlasterror();
 842                 goto err;
 843                 }
 844         else
 845                 {
 846                 ret = 1;
 847                 /* Inplace byte reversal of signature */
 848                 for(i = 0; i < slen / 2; i++)
 849                         {
 850                         unsigned char c;
 851                         c = sigret[i];
 852                         sigret[i] = sigret[slen - i - 1];
 853                         sigret[slen - i - 1] = c;
 854                         }
 855                 *siglen = slen;
 856                 }
 857
 858         /* Now cleanup */
 859
 860 err:
 861         CryptDestroyHash(hash);
 862
 863         return ret;
 864         }
 865
 866 int capi_rsa_priv_dec(int flen, const unsigned char *from,
 867                 unsigned char *to, RSA *rsa, int padding)
 868         {
 869         int i;
 870         unsigned char *tmpbuf;
 871         CAPI_KEY *capi_key;
 872         CAPI_CTX *ctx;
 873         ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
 874
 875         CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
 876
 877
 878         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 879         if (!capi_key)
 880                 {
 881                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
 882                 return -1;
 883                 }
 884
 885         if(padding != RSA_PKCS1_PADDING)
 886                 {
 887                 char errstr[10];
 888                 BIO_snprintf(errstr, 10, "%d", padding);
 889                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
 890                 ERR_add_error_data(2, "padding=", errstr);
 891                 return -1;
 892                 }
 893
 894         /* Create temp reverse order version of input */
 895         if(!(tmpbuf = OPENSSL_malloc(flen)) )
 896                 {
 897                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
 898                 return -1;
 899                 }
 900         for(i = 0; i < flen; i++)
 901                 tmpbuf[flen - i - 1] = from[i];
 902
 903         /* Finally decrypt it */
 904         if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
 905                 {
 906                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
 907                 capi_addlasterror();
 908                 OPENSSL_free(tmpbuf);
 909                 return -1;
 910                 }
 911         else memcpy(to, tmpbuf, flen);
 912
 913         OPENSSL_free(tmpbuf);
 914
 915         return flen;
 916         }
 917
 918 static int capi_rsa_free(RSA *rsa)
 919         {
 920         CAPI_KEY *capi_key;
 921         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 922         capi_free_key(capi_key);
 923         RSA_set_ex_data(rsa, rsa_capi_idx, 0);
 924         return 1;
 925         }
 926
 927 /* CryptoAPI DSA operations */
 928
 929 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
 930                                                                 DSA *dsa)
 931         {
 932         HCRYPTHASH hash;
 933         DWORD slen;
 934         DSA_SIG *ret = NULL;
 935         CAPI_KEY *capi_key;
 936         CAPI_CTX *ctx;
 937         unsigned char csigbuf[40];
 938
 939         ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
 940
 941         CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
 942
 943         capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
 944
 945         if (!capi_key)
 946                 {
 947                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
 948                 return NULL;
 949                 }
 950
 951         if (dlen != 20)
 952                 {
 953                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
 954                 return NULL;
 955                 }
 956
 957         /* Create the hash object */
 958         if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
 959                 {
 960                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
 961                 capi_addlasterror();
 962                 return NULL;
 963                 }
 964
 965         /* Set the hash value to the value passed */
 966         if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
 967                 {
 968                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
 969                 capi_addlasterror();
 970                 goto err;
 971                 }
 972
 973
 974         /* Finally sign it */
 975         slen = sizeof(csigbuf);
 976         if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
 977                 {
 978                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
 979                 capi_addlasterror();
 980                 goto err;
 981                 }
 982         else
 983                 {
 984                 ret = DSA_SIG_new();
 985                 if (!ret)
 986                         goto err;
 987                 ret->r = BN_new();
 988                 ret->s = BN_new();
 989                 if (!ret->r || !ret->s)
 990                         goto err;
 991                 if (!lend_tobn(ret->r, csigbuf, 20)
 992                         || !lend_tobn(ret->s, csigbuf + 20, 20))
 993                         {
 994                         DSA_SIG_free(ret);
 995                         ret = NULL;
 996                         goto err;
 997                         }
 998                 }
 999
1000         /* Now cleanup */
1001
1002 err:
1003         OPENSSL_cleanse(csigbuf, 40);
1004         CryptDestroyHash(hash);
1005         return ret;
1006         }
1007
1008 static int capi_dsa_free(DSA *dsa)
1009         {
1010         CAPI_KEY *capi_key;
1011         capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1012         capi_free_key(capi_key);
1013         DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1014         return 1;
1015         }
1016
1017 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
1018         {
1019         BIO *out;
1020
1021         if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1022                 return;
1023         out = BIO_new_file(ctx->debug_file, "a+");
1024         BIO_vprintf(out, format, argptr);
1025         BIO_free(out);
1026         }
1027
1028 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1029         {
1030         va_list args;
1031         va_start(args, format);
1032         capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1033         va_end(args);
1034         }
1035
1036 static void capi_addlasterror(void)
1037         {
1038         capi_adderror(GetLastError());
1039         }
1040
1041 static void capi_adderror(DWORD err)
1042         {
1043         char errstr[10];
1044         BIO_snprintf(errstr, 10, "%lX", err);
1045         ERR_add_error_data(2, "Error code= 0x", errstr);
1046         }
1047
1048 static char *wide_to_asc(LPWSTR wstr)
1049         {
1050         char *str;
1051         int len_0,sz;
1052
1053         if (!wstr)
1054                 return NULL;
1055         len_0 = (int)wcslen(wstr)+1;    /* WideCharToMultiByte expects int */
1056         sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL);
1057         if (!sz)
1058                 {
1059                 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1060                 return NULL;
1061                 }
1062         str = OPENSSL_malloc(sz);
1063         if (!str)
1064                 {
1065                 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1066                 return NULL;
1067                 }
1068         if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL))
1069                 {
1070                 OPENSSL_free(str);
1071                 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1072                 return NULL;
1073                 }
1074         return str;
1075         }
1076
1077 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
1078         {
1079         LPSTR name;
1080         DWORD len, err;
1081         CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1082         if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len))
1083                 {
1084                 err = GetLastError();
1085                 if (err == ERROR_NO_MORE_ITEMS)
1086                         return 2;
1087                 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1088                 capi_adderror(err);
1089                 return 0;
1090                 }
1091         name = OPENSSL_malloc(len);
1092         if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len))
1093                 {
1094                 err = GetLastError();
1095                 if (err == ERROR_NO_MORE_ITEMS)
1096                         return 2;
1097                 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1098                 capi_adderror(err);
1099                 return 0;
1100                 }
1101         *pname = name;
1102         CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
1103
1104         return 1;
1105         }
1106
1107 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1108         {
1109         DWORD idx, ptype;
1110         int ret;
1111         LPSTR provname = NULL;
1112         CAPI_trace(ctx, "capi_list_providers\n");
1113         BIO_printf(out, "Available CSPs:\n");
1114         for(idx = 0; ; idx++)
1115                 {
1116                 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1117                 if (ret == 2)
1118                         break;
1119                 if (ret == 0)
1120                         break;
1121                 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1122                 OPENSSL_free(provname);
1123                 }
1124         return 1;
1125         }
1126
1127 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1128         {
1129         int ret = 1;
1130         HCRYPTPROV hprov;
1131         DWORD err, idx, flags, buflen = 0, clen;
1132         LPSTR cname;
1133         CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
1134         if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
1135                 {
1136                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1137                 capi_addlasterror();
1138                 return 0;
1139                 }
1140         if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1141                 {
1142                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1143                 capi_addlasterror();
1144                 CryptReleaseContext(hprov, 0);
1145                 return 0;
1146                 }
1147         CAPI_trace(ctx, "Got max container len %d\n", buflen);
1148         if (buflen == 0)
1149                 buflen = 1024;
1150         cname = OPENSSL_malloc(buflen);
1151         if (!cname)
1152                 {
1153                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1154                 goto err;
1155                 }
1156
1157         for (idx = 0;;idx++)
1158                 {
1159                 clen = buflen;
1160                 cname[0] = 0;
1161
1162                 if (idx == 0)
1163                         flags = CRYPT_FIRST;
1164                 else
1165                         flags = 0;
1166                 if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1167                         {
1168                         err = GetLastError();
1169                         if (err == ERROR_NO_MORE_ITEMS)
1170                                 goto done;
1171                         CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1172                         capi_adderror(err);
1173                         goto err;
1174                         }
1175                 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1176                 if (!cname[0] && (clen == buflen))
1177                         {
1178                         CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1179                         goto done;
1180                         }
1181                 BIO_printf(out, "%d. %s\n", idx, cname);
1182                 }
1183         err:
1184
1185         ret = 0;
1186
1187         done:
1188         if (cname)
1189                 OPENSSL_free(cname);
1190         CryptReleaseContext(hprov, 0);
1191
1192         return ret;
1193         }
1194
1195 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1196         {
1197         DWORD len;
1198         CRYPT_KEY_PROV_INFO *pinfo;
1199
1200         if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1201                 return NULL;
1202         pinfo = OPENSSL_malloc(len);
1203         if (!pinfo)
1204                 {
1205                 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1206                 return NULL;
1207                 }
1208         if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1209                 {
1210                 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1211                 capi_addlasterror();
1212                 OPENSSL_free(pinfo);
1213                 return NULL;
1214                 }
1215         return pinfo;
1216         }
1217
1218 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1219         {
1220         char *provname = NULL, *contname = NULL;
1221         if (!pinfo)
1222                 {
1223                 BIO_printf(out, "  No Private Key\n");
1224                 return;
1225                 }
1226         provname = wide_to_asc(pinfo->pwszProvName);
1227         contname = wide_to_asc(pinfo->pwszContainerName);
1228         if (!provname || !contname)
1229                 goto err;
1230
1231         BIO_printf(out, "  Private Key Info:\n");
1232         BIO_printf(out, "    Provider Name:  %s, Provider Type %d\n", provname, pinfo->dwProvType);
1233         BIO_printf(out, "    Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1234         err:
1235         if (provname)
1236                 OPENSSL_free(provname);
1237         if (contname)
1238                 OPENSSL_free(contname);
1239         }
1240
1241 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1242         {
1243         LPWSTR wfname;
1244         DWORD dlen;
1245
1246         CAPI_trace(ctx, "capi_cert_get_fname\n");
1247         if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1248                 return NULL;
1249         wfname = OPENSSL_malloc(dlen);
1250         if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1251                 {
1252                 char *fname = wide_to_asc(wfname);
1253                 OPENSSL_free(wfname);
1254                 return fname;
1255                 }
1256         CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1257         capi_addlasterror();
1258
1259         OPENSSL_free(wfname);
1260         return NULL;
1261         }
1262
1263
1264 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1265         {
1266         X509 *x;
1267         unsigned char *p;
1268         unsigned long flags = ctx->dump_flags;
1269         if (flags & CAPI_DMP_FNAME)
1270                 {
1271                 char *fname;
1272                 fname = capi_cert_get_fname(ctx, cert);
1273                 if (fname)
1274                         {
1275                         BIO_printf(out, "  Friendly Name \"%s\"\n", fname);
1276                         OPENSSL_free(fname);
1277                         }
1278                 else
1279                         BIO_printf(out, "  <No Friendly Name>\n");
1280                 }
1281
1282         p = cert->pbCertEncoded;
1283         x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1284         if (!x)
1285                 BIO_printf(out, "  <Can't parse certificate>\n");
1286         if (flags & CAPI_DMP_SUMMARY)
1287                 {
1288                 BIO_printf(out, "  Subject: ");
1289                 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1290                 BIO_printf(out, "\n  Issuer: ");
1291                 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1292                 BIO_printf(out, "\n");
1293                 }
1294         if (flags & CAPI_DMP_FULL)
1295                 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1296
1297         if (flags & CAPI_DMP_PKEYINFO)
1298                 {
1299                 CRYPT_KEY_PROV_INFO *pinfo;
1300                 pinfo = capi_get_prov_info(ctx, cert);
1301                 capi_dump_prov_info(ctx, out, pinfo);
1302                 if (pinfo)
1303                         OPENSSL_free(pinfo);
1304                 }
1305
1306         if (flags & CAPI_DMP_PEM)
1307                 PEM_write_bio_X509(out, x);
1308         X509_free(x);
1309         }
1310
1311 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1312         {
1313         HCERTSTORE hstore;
1314
1315         if (!storename)
1316                 storename = ctx->storename;
1317         if (!storename)
1318                 storename = "MY";
1319         CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1320
1321         hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1322                                 ctx->store_flags, storename);
1323         if (!hstore)
1324                 {
1325                 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1326                 capi_addlasterror();
1327                 }
1328         return hstore;
1329         }
1330
1331 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1332         {
1333         char *storename;
1334         int idx;
1335         int ret = 1;
1336         HCERTSTORE hstore;
1337         PCCERT_CONTEXT cert = NULL;
1338
1339         storename = ctx->storename;
1340         if (!storename)
1341                 storename = "MY";
1342         CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1343
1344         hstore = capi_open_store(ctx, storename);
1345         if (!hstore)
1346                 return 0;
1347         if (id)
1348                 {
1349                 cert = capi_find_cert(ctx, id, hstore);
1350                 if (!cert)
1351                         {
1352                         ret = 0;
1353                         goto err;
1354                         }
1355                 capi_dump_cert(ctx, out, cert);
1356                 CertFreeCertificateContext(cert);
1357                 }
1358         else
1359                 {
1360                 for(idx = 0;;idx++)
1361                         {
1362                         LPWSTR fname = NULL;
1363                         cert = CertEnumCertificatesInStore(hstore, cert);
1364                         if (!cert)
1365                                 break;
1366                         BIO_printf(out, "Certificate %d\n", idx);
1367                         capi_dump_cert(ctx, out, cert);
1368                         }
1369                 }
1370         err:
1371         CertCloseStore(hstore, 0);
1372         return ret;
1373         }
1374
1375 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1376         {
1377         PCCERT_CONTEXT cert = NULL;
1378         char *fname = NULL;
1379         int match;
1380         switch(ctx->lookup_method)
1381                 {
1382                 case CAPI_LU_SUBSTR:
1383                         return CertFindCertificateInStore(hstore,
1384                                         X509_ASN_ENCODING, 0,
1385                                         CERT_FIND_SUBJECT_STR_A, id, NULL);
1386                 case CAPI_LU_FNAME:
1387                         for(;;)
1388                                 {
1389                                 cert = CertEnumCertificatesInStore(hstore, cert);
1390                                 if (!cert)
1391                                         return NULL;
1392                                 fname = capi_cert_get_fname(ctx, cert);
1393                                 if (fname)
1394                                         {
1395                                         if (strcmp(fname, id))
1396                                                 match = 0;
1397                                         else
1398                                                 match = 1;
1399                                         OPENSSL_free(fname);
1400                                         if (match)
1401                                                 return cert;
1402                                         }
1403                                 }
1404                 default:
1405                         return NULL;
1406                 }
1407         }
1408
1409 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1410         {
1411         CAPI_KEY *key;
1412     DWORD dwFlags = 0;
1413         key = OPENSSL_malloc(sizeof(CAPI_KEY));
1414         CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1415                                                 contname, provname, ptype);
1416     if(ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1417         dwFlags = CRYPT_MACHINE_KEYSET;
1418     if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, dwFlags))
1419                 {
1420                 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1421                 capi_addlasterror();
1422                 goto err;
1423                 }
1424         if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1425                 {
1426                 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1427                 capi_addlasterror();
1428                 CryptReleaseContext(key->hprov, 0);
1429                 goto err;
1430                 }
1431         key->keyspec = keyspec;
1432         key->pcert = NULL;
1433         return key;
1434
1435         err:
1436         OPENSSL_free(key);
1437         return NULL;
1438         }
1439
1440 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1441         {
1442         CAPI_KEY *key = NULL;
1443         CRYPT_KEY_PROV_INFO *pinfo = NULL;
1444         char *provname = NULL, *contname = NULL;
1445         pinfo = capi_get_prov_info(ctx, cert);
1446         if (!pinfo)
1447                 goto err;
1448         provname = wide_to_asc(pinfo->pwszProvName);
1449         contname = wide_to_asc(pinfo->pwszContainerName);
1450         if (!provname || !contname)
1451                 goto err;
1452         key = capi_get_key(ctx, contname, provname,
1453                                 pinfo->dwProvType, pinfo->dwKeySpec);
1454
1455         err:
1456         if (pinfo)
1457                 OPENSSL_free(pinfo);
1458         if (provname)
1459                 OPENSSL_free(provname);
1460         if (contname)
1461                 OPENSSL_free(contname);
1462         return key;
1463         }
1464
1465 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1466         {
1467         PCCERT_CONTEXT cert;
1468         HCERTSTORE hstore;
1469         CAPI_KEY *key = NULL;
1470         switch (ctx->lookup_method)
1471                 {
1472                 case CAPI_LU_SUBSTR:
1473                 case CAPI_LU_FNAME:
1474                 hstore = capi_open_store(ctx, NULL);
1475                 if (!hstore)
1476                         return NULL;
1477                 cert = capi_find_cert(ctx, id, hstore);
1478                 if (cert)
1479                         {
1480                         key = capi_get_cert_key(ctx, cert);
1481                         CertFreeCertificateContext(cert);
1482                         }
1483                 CertCloseStore(hstore, 0);
1484                 break;
1485
1486                 case CAPI_LU_CONTNAME:
1487                 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
1488                                                         ctx->keytype);
1489                 break;
1490                 }
1491
1492         return key;
1493         }
1494
1495 void capi_free_key(CAPI_KEY *key)
1496         {
1497         if (!key)
1498                 return;
1499         CryptDestroyKey(key->key);
1500         CryptReleaseContext(key->hprov, 0);
1501         if (key->pcert)
1502                 CertFreeCertificateContext(key->pcert);
1503         OPENSSL_free(key);
1504         }
1505
1506
1507 /* Initialize a CAPI_CTX structure */
1508
1509 static CAPI_CTX *capi_ctx_new()
1510         {
1511         CAPI_CTX *ctx;
1512         ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1513         if (!ctx)
1514                 {
1515                 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1516                 return NULL;
1517                 }
1518         ctx->cspname = NULL;
1519         ctx->csptype = PROV_RSA_FULL;
1520         ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1521         ctx->keytype = AT_KEYEXCHANGE;
1522         ctx->storename = NULL;
1523         ctx->ssl_client_store = NULL;
1524         ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1525                                 CERT_STORE_READONLY_FLAG |
1526                                 CERT_SYSTEM_STORE_CURRENT_USER;
1527         ctx->lookup_method = CAPI_LU_SUBSTR;
1528         ctx->debug_level = 0;
1529         ctx->debug_file = NULL;
1530         ctx->client_cert_select = cert_select_simple;
1531         return ctx;
1532         }
1533
1534 static void capi_ctx_free(CAPI_CTX *ctx)
1535         {
1536         CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1537         if (!ctx)
1538                 return;
1539         if (ctx->cspname)
1540                 OPENSSL_free(ctx->cspname);
1541         if (ctx->debug_file)
1542                 OPENSSL_free(ctx->debug_file);
1543         if (ctx->storename)
1544                 OPENSSL_free(ctx->storename);
1545         if (ctx->ssl_client_store)
1546                 OPENSSL_free(ctx->ssl_client_store);
1547         OPENSSL_free(ctx);
1548         }
1549
1550 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1551         {
1552         CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1553         if (check)
1554                 {
1555                 HCRYPTPROV hprov;
1556                 if (!CryptAcquireContextA(&hprov, NULL, pname, type,
1557                                                 CRYPT_VERIFYCONTEXT))
1558                         {
1559                         CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1560                         capi_addlasterror();
1561                         return 0;
1562                         }
1563                 CryptReleaseContext(hprov, 0);
1564                 }
1565         if (ctx->cspname)
1566                 OPENSSL_free(ctx->cspname);
1567         ctx->cspname = BUF_strdup(pname);
1568         ctx->csptype = type;
1569         return 1;
1570         }
1571
1572 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1573         {
1574         LPSTR pname;
1575         DWORD type;
1576         int res;
1577         if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1578                 return 0;
1579         res = capi_ctx_set_provname(ctx, pname, type, 0);
1580         OPENSSL_free(pname);
1581         return res;
1582         }
1583
1584 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1585         {
1586         int i;
1587         X509_NAME *nm;
1588         /* Special case: empty list: match anything */
1589         if (sk_X509_NAME_num(ca_dn) <= 0)
1590                 return 1;
1591         for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
1592                 {
1593                 nm = sk_X509_NAME_value(ca_dn, i);
1594                 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1595                                 return 1;
1596                 }
1597         return 0;
1598         }
1599
1600
1601
1602 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1603         STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
1604         STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
1605         {
1606         STACK_OF(X509) *certs = NULL;
1607         X509 *x;
1608         char *storename;
1609         const char *p;
1610         int i, client_cert_idx;
1611         HCERTSTORE hstore;
1612         PCCERT_CONTEXT cert = NULL, excert = NULL;
1613         CAPI_CTX *ctx;
1614         CAPI_KEY *key;
1615         ctx = ENGINE_get_ex_data(e, capi_idx);
1616
1617         *pcert = NULL;
1618         *pkey = NULL;
1619
1620         storename = ctx->ssl_client_store;
1621         if (!storename)
1622                 storename = "MY";
1623
1624         hstore = capi_open_store(ctx, storename);
1625         if (!hstore)
1626                 return 0;
1627         /* Enumerate all certificates collect any matches */
1628         for(i = 0;;i++)
1629                 {
1630                 cert = CertEnumCertificatesInStore(hstore, cert);
1631                 if (!cert)
1632                         break;
1633                 p = cert->pbCertEncoded;
1634                 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1635                 if (!x)
1636                         {
1637                         CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1638                         continue;
1639                         }
1640                 if (cert_issuer_match(ca_dn, x)
1641                         && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0))
1642                         {
1643                         key = capi_get_cert_key(ctx, cert);
1644                         if (!key)
1645                                 {
1646                                 X509_free(x);
1647                                 continue;
1648                                 }
1649                         /* Match found: attach extra data to it so
1650                          * we can retrieve the key later.
1651                          */
1652                         excert = CertDuplicateCertificateContext(cert);
1653                         key->pcert = excert;
1654                         X509_set_ex_data(x, cert_capi_idx, key);
1655
1656                         if (!certs)
1657                                 certs = sk_X509_new_null();
1658
1659                         sk_X509_push(certs, x);
1660                         }
1661                 else
1662                         X509_free(x);
1663
1664                 }
1665
1666         if (cert)
1667                 CertFreeCertificateContext(cert);
1668         if (hstore)
1669                 CertCloseStore(hstore, 0);
1670
1671         if (!certs)
1672                 return 0;
1673
1674
1675         /* Select the appropriate certificate */
1676
1677         client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1678
1679         /* Set the selected certificate and free the rest */
1680
1681         for(i = 0; i < sk_X509_num(certs); i++)
1682                 {
1683                 x = sk_X509_value(certs, i);
1684                 if (i == client_cert_idx)
1685                         *pcert = x;
1686                 else
1687                         {
1688                         key = X509_get_ex_data(x, cert_capi_idx);
1689                         capi_free_key(key);
1690                         X509_free(x);
1691                         }
1692                 }
1693
1694         sk_X509_free(certs);
1695
1696         if (!*pcert)
1697                 return 0;
1698
1699         /* Setup key for selected certificate */
1700
1701         key = X509_get_ex_data(*pcert, cert_capi_idx);
1702         *pkey = capi_get_pkey(e, key);
1703         X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1704
1705         return 1;
1706
1707         }
1708
1709
1710 /* Simple client cert selection function: always select first */
1711
1712 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1713         {
1714         return 0;
1715         }
1716
1717 #ifdef OPENSSL_CAPIENG_DIALOG
1718
1719 /* More complex cert selection function, using standard function
1720  * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1721  */
1722
1723 /* Definitions which are in cryptuiapi.h but this is not present in older
1724  * versions of headers.
1725  */
1726
1727 #ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1728 #define CRYPTUI_SELECT_LOCATION_COLUMN                   0x000000010
1729 #define CRYPTUI_SELECT_INTENDEDUSE_COLUMN                0x000000004
1730 #endif
1731
1732 #define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1733 #define dlg_prompt L"Select a certificate to use for authentication"
1734 #define dlg_columns      CRYPTUI_SELECT_LOCATION_COLUMN \
1735                         |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1736
1737 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1738         {
1739         X509 *x;
1740         HCERTSTORE dstore;
1741         PCCERT_CONTEXT cert;
1742         CAPI_CTX *ctx;
1743         CAPI_KEY *key;
1744         HWND hwnd;
1745         int i, idx = -1;
1746         if (sk_X509_num(certs) == 1)
1747                 return 0;
1748         ctx = ENGINE_get_ex_data(e, capi_idx);
1749         /* Create an in memory store of certificates */
1750         dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1751                                         CERT_STORE_CREATE_NEW_FLAG, NULL);
1752         if (!dstore)
1753                 {
1754                 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1755                 capi_addlasterror();
1756                 goto err;
1757                 }
1758         /* Add all certificates to store */
1759         for(i = 0; i < sk_X509_num(certs); i++)
1760                 {
1761                 x = sk_X509_value(certs, i);
1762                 key = X509_get_ex_data(x, cert_capi_idx);
1763
1764                 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1765                                                 CERT_STORE_ADD_NEW, NULL))
1766                         {
1767                         CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1768                         capi_addlasterror();
1769                         goto err;
1770                         }
1771
1772                 }
1773         hwnd = GetForegroundWindow();
1774         if (!hwnd)
1775                 hwnd = GetActiveWindow();
1776         if (!hwnd && ctx->getconswindow)
1777                 hwnd = ctx->getconswindow();
1778         /* Call dialog to select one */
1779         cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1780                                                 dlg_columns, 0, NULL);
1781
1782         /* Find matching cert from list */
1783         if (cert)
1784                 {
1785                 for(i = 0; i < sk_X509_num(certs); i++)
1786                         {
1787                         x = sk_X509_value(certs, i);
1788                         key = X509_get_ex_data(x, cert_capi_idx);
1789                         if (CertCompareCertificate(
1790                                 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1791                                         cert->pCertInfo,
1792                                         key->pcert->pCertInfo))
1793                                 {
1794                                 idx = i;
1795                                 break;
1796                                 }
1797                         }
1798                 }
1799
1800         err:
1801         if (dstore)
1802                 CertCloseStore(dstore, 0);
1803         return idx;
1804
1805         }
1806 #endif
1807
1808 #endif
1809 #else /* !WIN32 */
1810 #include <openssl/engine.h>
1811 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
1812 OPENSSL_EXPORT
1813 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
1814 IMPLEMENT_DYNAMIC_CHECK_FN()
1815 #endif
1816 #endif