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/engine.h>
  60 #include <openssl/rsa.h>
  61 #include <openssl/bn.h>
  62 #include <openssl/pem.h>
  63
  64 #ifdef OPENSSL_SYS_WIN32
  65 #ifndef OPENSSL_NO_CAPIENG
  66
  67 #ifndef _WIN32_WINNT
  68 #define _WIN32_WINNT 0x400
  69 #endif
  70
  71 #include <windows.h>
  72 #include <wincrypt.h>
  73
  74 #include "e_capi_err.h"
  75 #include "e_capi_err.c"
  76
  77
  78 static const char *engine_capi_id = "capi";
  79 static const char *engine_capi_name = "CryptoAPI ENGINE";
  80
  81 typedef struct CAPI_CTX_st CAPI_CTX;
  82 typedef struct CAPI_KEY_st CAPI_KEY;
  83
  84 static void capi_addlasterror(void);
  85 static void capi_adderror(DWORD err);
  86
  87 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
  88
  89 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
  90 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
  91 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
  92 void capi_free_key(CAPI_KEY *key);
  93
  94 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
  95
  96 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
  97
  98 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
  99         UI_METHOD *ui_method, void *callback_data);
 100 static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
 101              unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
 102 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
 103                 unsigned char *to, RSA *rsa, int padding);
 104 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
 105                 unsigned char *to, RSA *rsa, int padding);
 106 static int capi_rsa_free(RSA *rsa);
 107
 108 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
 109                                                         DSA *dsa);
 110 static int capi_dsa_free(DSA *dsa);
 111
 112 /* This structure contains CAPI ENGINE specific data:
 113  * it contains various global options and affects how
 114  * other functions behave.
 115  */
 116
 117 #define CAPI_DBG_TRACE  2
 118 #define CAPI_DBG_ERROR  1
 119
 120 struct CAPI_CTX_st {
 121         int debug_level;
 122         char *debug_file;
 123         /* Parameters to use for container lookup */
 124         DWORD keytype;
 125         LPTSTR cspname;
 126         DWORD csptype;
 127         /* Certificate store name to use */
 128         LPTSTR storename;
 129
 130 /* Lookup string meanings in load_private_key */
 131 /* Substring of subject: uses "storename" */
 132 #define CAPI_LU_SUBSTR          0
 133 /* Friendly name: uses storename */
 134 #define CAPI_LU_FNAME           1
 135 /* Container name: uses cspname, keytype */
 136 #define CAPI_LU_CONTNAME        2
 137         int lookup_method;
 138 /* Info to dump with dumpcerts option */
 139 /* Issuer and serial name strings */
 140 #define CAPI_DMP_SUMMARY        0x1
 141 /* Friendly name */
 142 #define CAPI_DMP_FNAME          0x2
 143 /* Full X509_print dump */
 144 #define CAPI_DMP_FULL           0x4
 145 /* Dump PEM format certificate */
 146 #define CAPI_DMP_PEM            0x8
 147 /* Dump pseudo key (if possible) */
 148 #define CAPI_DMP_PSKEY          0x10
 149 /* Dump key info (if possible) */
 150 #define CAPI_DMP_PKEYINFO       0x20
 151
 152         DWORD dump_flags;
 153 };
 154
 155
 156 static CAPI_CTX *capi_ctx_new();
 157 static void capi_ctx_free(CAPI_CTX *ctx);
 158 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
 159 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
 160
 161 #define CAPI_CMD_LIST_CERTS                     ENGINE_CMD_BASE
 162 #define CAPI_CMD_LOOKUP_CERT            (ENGINE_CMD_BASE + 1)
 163 #define CAPI_CMD_DEBUG_LEVEL            (ENGINE_CMD_BASE + 2)
 164 #define CAPI_CMD_DEBUG_FILE                     (ENGINE_CMD_BASE + 3)
 165 #define CAPI_CMD_KEYTYPE                        (ENGINE_CMD_BASE + 4)
 166 #define CAPI_CMD_LIST_CSPS                      (ENGINE_CMD_BASE + 5)
 167 #define CAPI_CMD_SET_CSP_IDX            (ENGINE_CMD_BASE + 6)
 168 #define CAPI_CMD_SET_CSP_NAME           (ENGINE_CMD_BASE + 7)
 169 #define CAPI_CMD_SET_CSP_TYPE           (ENGINE_CMD_BASE + 8)
 170 #define CAPI_CMD_LIST_CONTAINERS        (ENGINE_CMD_BASE + 9)
 171 #define CAPI_CMD_LIST_OPTIONS           (ENGINE_CMD_BASE + 10)
 172 #define CAPI_CMD_LOOKUP_METHOD          (ENGINE_CMD_BASE + 11)
 173
 174 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
 175         {CAPI_CMD_LIST_CERTS,
 176                 "list_certs",
 177                 "List all certificates in store",
 178                 ENGINE_CMD_FLAG_NO_INPUT},
 179         {CAPI_CMD_LOOKUP_CERT,
 180                 "lookup_cert",
 181                 "Lookup and output certificates",
 182                 ENGINE_CMD_FLAG_STRING},
 183         {CAPI_CMD_DEBUG_LEVEL,
 184                 "debug_level",
 185                 "debug level (1=errors, 2=trace)",
 186                 ENGINE_CMD_FLAG_NUMERIC},
 187         {CAPI_CMD_DEBUG_FILE,
 188                 "debug_file",
 189                 "debugging filename)",
 190                 ENGINE_CMD_FLAG_STRING},
 191         {CAPI_CMD_KEYTYPE,
 192                 "key_type",
 193                 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
 194                 ENGINE_CMD_FLAG_NUMERIC},
 195         {CAPI_CMD_LIST_CSPS,
 196                 "list_csps",
 197                 "List all CSPs",
 198                 ENGINE_CMD_FLAG_NO_INPUT},
 199         {CAPI_CMD_SET_CSP_IDX,
 200                 "csp_idx",
 201                 "Set CSP by index",
 202                 ENGINE_CMD_FLAG_NUMERIC},
 203         {CAPI_CMD_SET_CSP_NAME,
 204                 "csp_name",
 205                 "Set CSP name, (default CSP used if not specified)",
 206                 ENGINE_CMD_FLAG_STRING},
 207         {CAPI_CMD_SET_CSP_TYPE,
 208                 "csp_type",
 209                 "Set CSP type, (default RSA_PROV_FULL)",
 210                 ENGINE_CMD_FLAG_NUMERIC},
 211         {CAPI_CMD_LIST_CONTAINERS,
 212                 "list_containers",
 213                 "list container names",
 214                 ENGINE_CMD_FLAG_NO_INPUT},
 215         {CAPI_CMD_LIST_OPTIONS,
 216                 "list_options",
 217                 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
 218                 "32=private key info)",
 219                 ENGINE_CMD_FLAG_NUMERIC},
 220         {CAPI_CMD_LOOKUP_METHOD,
 221                 "lookup_method",
 222                 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
 223                 ENGINE_CMD_FLAG_NUMERIC},
 224
 225         {0, NULL, NULL, 0}
 226         };
 227
 228 static int capi_idx = -1;
 229 static int rsa_capi_idx = -1;
 230 static int dsa_capi_idx = -1;
 231
 232 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
 233 {
 234         int ret = 1;
 235         CAPI_CTX *ctx;
 236         BIO *out;
 237         if (capi_idx == -1)
 238                 {
 239                 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
 240                 return 0;
 241                 }
 242         ctx = ENGINE_get_ex_data(e, capi_idx);
 243         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 244         switch (cmd)
 245                 {
 246                 case CAPI_CMD_LIST_CSPS:
 247                 ret = capi_list_providers(ctx, out);
 248                 break;
 249
 250                 case CAPI_CMD_LIST_CERTS:
 251                 ret = capi_list_certs(ctx, out, NULL);
 252                 break;
 253
 254                 case CAPI_CMD_LOOKUP_CERT:
 255                 ret = capi_list_certs(ctx, out, p);
 256                 break;
 257
 258                 case CAPI_CMD_LIST_CONTAINERS:
 259                 ret = capi_list_containers(ctx, out);
 260                 break;
 261
 262                 case CAPI_CMD_DEBUG_LEVEL:
 263                 ctx->debug_level = (int)i;
 264                 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
 265                 break;
 266
 267                 case CAPI_CMD_DEBUG_FILE:
 268                 ctx->debug_file = BUF_strdup(p);
 269                 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
 270                 break;
 271
 272                 case CAPI_CMD_KEYTYPE:
 273                 ctx->keytype = i;
 274                 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
 275                 break;
 276
 277                 case CAPI_CMD_SET_CSP_IDX:
 278                 ret = capi_ctx_set_provname_idx(ctx, i);
 279                 break;
 280
 281                 case CAPI_CMD_LIST_OPTIONS:
 282                 ctx->dump_flags = i;
 283                 break;
 284
 285                 case CAPI_CMD_LOOKUP_METHOD:
 286                 if (i < 1 || i > 3)
 287                         {
 288                         CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
 289                         return 0;
 290                         }
 291                 ctx->lookup_method = i;
 292                 break;
 293
 294                 case CAPI_CMD_SET_CSP_NAME:
 295                 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
 296                 break;
 297
 298                 case CAPI_CMD_SET_CSP_TYPE:
 299                 ctx->csptype = i;
 300                 break;
 301
 302                 default:
 303                 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
 304                 ret = 0;
 305         }
 306
 307         BIO_free(out);
 308         return ret;
 309
 310 }
 311
 312 static RSA_METHOD capi_rsa_method =
 313         {
 314         "CryptoAPI RSA method",
 315         0,                              /* pub_enc */
 316         0,                              /* pub_dec */
 317         capi_rsa_priv_enc,              /* priv_enc */
 318         capi_rsa_priv_dec,              /* priv_dec */
 319         0,                              /* rsa_mod_exp */
 320         0,                              /* bn_mod_exp */
 321         0,                              /* init */
 322         capi_rsa_free,                  /* finish */
 323         RSA_FLAG_SIGN_VER,              /* flags */
 324         NULL,                           /* app_data */
 325         capi_rsa_sign,                  /* rsa_sign */
 326         0                               /* rsa_verify */
 327         };
 328
 329 static DSA_METHOD capi_dsa_method =
 330         {
 331         "CryptoAPI DSA method",
 332         capi_dsa_do_sign,               /* dsa_do_sign */
 333         0,                              /* dsa_sign_setup */
 334         0,                              /* dsa_do_verify */
 335         0,                              /* dsa_mod_exp */
 336         0,                              /* bn_mod_exp */
 337         0,                              /* init */
 338         capi_dsa_free,                  /* finish */
 339         0,                              /* flags */
 340         NULL,                           /* app_data */
 341         0,                              /* dsa_paramgen */
 342         0                               /* dsa_keygen */
 343         };
 344
 345 static int capi_init(ENGINE *e)
 346         {
 347         CAPI_CTX *ctx;
 348         const RSA_METHOD *ossl_rsa_meth;
 349         const DSA_METHOD *ossl_dsa_meth;
 350         capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
 351
 352         ctx = capi_ctx_new();
 353         if (!ctx || (capi_idx < 0))
 354                 goto memerr;
 355
 356         ENGINE_set_ex_data(e, capi_idx, ctx);
 357         /* Setup RSA_METHOD */
 358         rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
 359         ossl_rsa_meth = RSA_PKCS1_SSLeay();
 360         capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
 361         capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
 362         capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
 363         capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
 364
 365         /* Setup DSA Method */
 366         dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
 367         ossl_dsa_meth = DSA_OpenSSL();
 368         capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
 369         capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
 370         capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
 371
 372         return 1;
 373
 374         memerr:
 375         CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
 376         return 0;
 377
 378         return 1;
 379         }
 380
 381 static int capi_destroy(ENGINE *e)
 382         {
 383
 384         ERR_unload_CAPI_strings();
 385         return 1;
 386         }
 387
 388 static int capi_finish(ENGINE *e)
 389         {
 390         CAPI_CTX *ctx;
 391         ctx = ENGINE_get_ex_data(e, capi_idx);
 392         capi_ctx_free(ctx);
 393         ENGINE_set_ex_data(e, capi_idx, NULL);
 394         return 1;
 395         }
 396
 397
 398 /* CryptoAPI key application data. This contains
 399  * a handle to the private key container (for sign operations)
 400  * and a handle to the key (for decrypt operations).
 401  */
 402
 403 struct CAPI_KEY_st
 404         {
 405         HCRYPTPROV hprov;
 406         HCRYPTKEY key;
 407         };
 408
 409 static int bind_capi(ENGINE *e)
 410         {
 411         if (!ENGINE_set_id(e, engine_capi_id)
 412                 || !ENGINE_set_name(e, engine_capi_name)
 413                 || !ENGINE_set_init_function(e, capi_init)
 414                 || !ENGINE_set_finish_function(e, capi_finish)
 415                 || !ENGINE_set_destroy_function(e, capi_destroy)
 416                 || !ENGINE_set_RSA(e, &capi_rsa_method)
 417                 || !ENGINE_set_DSA(e, &capi_dsa_method)
 418                 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
 419                 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
 420                 || !ENGINE_set_ctrl_function(e, capi_ctrl))
 421                         return 0;
 422         ERR_load_CAPI_strings();
 423
 424         return 1;
 425
 426         }
 427
 428 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 429 static int bind_helper(ENGINE *e, const char *id)
 430         {
 431         if(id && (strcmp(id, engine_capi_id) != 0))
 432                 return 0;
 433         if(!bind_capi(e))
 434                 return 0;
 435         return 1;
 436         }
 437 IMPLEMENT_DYNAMIC_CHECK_FN()
 438 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
 439 #else
 440 static ENGINE *engine_capi(void)
 441         {
 442         ENGINE *ret = ENGINE_new();
 443         if(!ret)
 444                 return NULL;
 445         if(!bind_capi(ret))
 446                 {
 447                 ENGINE_free(ret);
 448                 return NULL;
 449                 }
 450         return ret;
 451         }
 452
 453 void ENGINE_load_capi(void)
 454         {
 455         /* Copied from eng_[openssl|dyn].c */
 456         ENGINE *toadd = engine_capi();
 457         if(!toadd) return;
 458         ENGINE_add(toadd);
 459         ENGINE_free(toadd);
 460         ERR_clear_error();
 461         }
 462 #endif
 463
 464
 465 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
 466         {
 467         int i;
 468         /* Reverse buffer in place: since this is a keyblob structure
 469          * that will be freed up after conversion anyway it doesn't
 470          * matter if we change it.
 471          */
 472         for(i = 0; i < binlen / 2; i++)
 473                 {
 474                 unsigned char c;
 475                 c = bin[i];
 476                 bin[i] = bin[binlen - i - 1];
 477                 bin[binlen - i - 1] = c;
 478                 }
 479
 480         if (!BN_bin2bn(bin, binlen, bn))
 481                 return 0;
 482         return 1;
 483         }
 484
 485 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
 486         UI_METHOD *ui_method, void *callback_data)
 487         {
 488         EVP_PKEY *ret = NULL;
 489         CAPI_CTX *ctx;
 490         CAPI_KEY *key;
 491         unsigned char *pubkey = NULL;
 492         DWORD len;
 493         BLOBHEADER *bh;
 494         RSA *rkey = NULL;
 495         DSA *dkey = NULL;
 496         ctx = ENGINE_get_ex_data(eng, capi_idx);
 497
 498         if (!ctx)
 499                 {
 500                 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
 501                 return NULL;
 502                 }
 503
 504         key = capi_find_key(ctx, key_id);
 505
 506         if (!key)
 507                 return NULL;
 508
 509         len = 0;
 510         if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
 511                 {
 512                 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
 513                 capi_addlasterror();
 514                 return NULL;
 515                 }
 516
 517         pubkey = OPENSSL_malloc(len);
 518
 519         if (!pubkey)
 520                 goto memerr;
 521
 522         if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
 523                 {
 524                 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
 525                 capi_addlasterror();
 526                 goto err;
 527                 }
 528
 529         bh = (BLOBHEADER *)pubkey;
 530         if (bh->bType != PUBLICKEYBLOB)
 531                 {
 532                 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
 533                 goto err;
 534                 }
 535         if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
 536                 {
 537                 RSAPUBKEY *rp;
 538                 DWORD rsa_modlen;
 539                 unsigned char *rsa_modulus;
 540                 rp = (RSAPUBKEY *)(bh + 1);
 541                 if (rp->magic != 0x31415352)
 542                         {
 543                         char magstr[10];
 544                         BIO_snprintf(magstr, 10, "%lx", rp->magic);
 545                         CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
 546                         ERR_add_error_data(2, "magic=0x", magstr);
 547                         goto err;
 548                         }
 549                 rsa_modulus = (unsigned char *)(rp + 1);
 550                 rkey = RSA_new_method(eng);
 551                 if (!rkey)
 552                         goto memerr;
 553
 554                 rkey->e = BN_new();
 555                 rkey->n = BN_new();
 556
 557                 if (!rkey->e || !rkey->n)
 558                         goto memerr;
 559
 560                 if (!BN_set_word(rkey->e, rp->pubexp))
 561                         goto memerr;
 562
 563                 rsa_modlen = rp->bitlen / 8;
 564                 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
 565                         goto memerr;
 566
 567                 RSA_set_ex_data(rkey, rsa_capi_idx, key);
 568
 569                 if (!(ret = EVP_PKEY_new()))
 570                         goto memerr;
 571
 572                 EVP_PKEY_assign_RSA(ret, rkey);
 573                 rkey = NULL;
 574
 575                 }
 576         else if (bh->aiKeyAlg == CALG_DSS_SIGN)
 577                 {
 578                 DSSPUBKEY *dp;
 579                 DWORD dsa_plen;
 580                 unsigned char *btmp;
 581                 dp = (DSSPUBKEY *)(bh + 1);
 582                 if (dp->magic != 0x31535344)
 583                         {
 584                         char magstr[10];
 585                         BIO_snprintf(magstr, 10, "%lx", dp->magic);
 586                         CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
 587                         ERR_add_error_data(2, "magic=0x", magstr);
 588                         goto err;
 589                         }
 590                 dsa_plen = dp->bitlen / 8;
 591                 btmp = (unsigned char *)(dp + 1);
 592                 dkey = DSA_new_method(eng);
 593                 if (!dkey)
 594                         goto memerr;
 595                 dkey->p = BN_new();
 596                 dkey->q = BN_new();
 597                 dkey->g = BN_new();
 598                 dkey->pub_key = BN_new();
 599                 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
 600                         goto memerr;
 601                 if (!lend_tobn(dkey->p, btmp, dsa_plen))
 602                         goto memerr;
 603                 btmp += dsa_plen;
 604                 if (!lend_tobn(dkey->q, btmp, 20))
 605                         goto memerr;
 606                 btmp += 20;
 607                 if (!lend_tobn(dkey->g, btmp, dsa_plen))
 608                         goto memerr;
 609                 btmp += dsa_plen;
 610                 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
 611                         goto memerr;
 612                 btmp += dsa_plen;
 613
 614                 DSA_set_ex_data(dkey, dsa_capi_idx, key);
 615
 616                 if (!(ret = EVP_PKEY_new()))
 617                         goto memerr;
 618
 619                 EVP_PKEY_assign_DSA(ret, dkey);
 620                 dkey = NULL;
 621                 }
 622         else
 623                 {
 624                 char algstr[10];
 625                 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
 626                 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
 627                 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
 628                 goto err;
 629                 }
 630
 631         err:
 632         if (pubkey)
 633                 OPENSSL_free(pubkey);
 634         if (!ret)
 635                 {
 636                 if (rkey)
 637                         RSA_free(rkey);
 638                 if (dkey)
 639                         DSA_free(dkey);
 640                 if (key)
 641                         capi_free_key(key);
 642                 }
 643
 644         return ret;
 645
 646 memerr:
 647         CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, ERR_R_MALLOC_FAILURE);
 648         goto err;
 649
 650         }
 651
 652 /* CryptoAPI RSA operations */
 653
 654 int capi_rsa_priv_enc(int flen, const unsigned char *from,
 655                 unsigned char *to, RSA *rsa, int padding)
 656         {
 657         CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
 658         return -1;
 659         }
 660
 661 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
 662              unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
 663         {
 664         ALG_ID alg;
 665         HCRYPTHASH hash;
 666         DWORD slen;
 667         unsigned int i;
 668         int ret = -1;
 669         CAPI_KEY *capi_key;
 670         CAPI_CTX *ctx;
 671
 672         ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
 673
 674         CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
 675
 676         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 677         if (!capi_key)
 678                 {
 679                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
 680                 return -1;
 681                 }
 682 /* Convert the signature type to a CryptoAPI algorithm ID */
 683         switch(dtype) {
 684         case NID_sha1:
 685                 alg = CALG_SHA1;
 686                 break;
 687
 688         case NID_md5:
 689                 alg = CALG_MD5;
 690                 break;
 691
 692         case NID_md5_sha1:
 693                 alg = CALG_SSL3_SHAMD5;
 694                 break;
 695         default:
 696                 {
 697                 char algstr[10];
 698                 BIO_snprintf(algstr, 10, "%lx", dtype);
 699                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
 700                 ERR_add_error_data(2, "NID=0x", algstr);
 701                 return -1;
 702                 }
 703         }
 704
 705
 706
 707 /* Create the hash object */
 708         if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
 709                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
 710                 capi_addlasterror();
 711                 return -1;
 712         }
 713 /* Set the hash value to the value passed */
 714
 715         if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
 716                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
 717                 capi_addlasterror();
 718                 goto err;
 719         }
 720
 721
 722 /* Finally sign it */
 723         slen = RSA_size(rsa);
 724         if(!CryptSignHash(hash, AT_KEYEXCHANGE, NULL, 0, sigret, &slen)) {
 725                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
 726                 capi_addlasterror();
 727                 goto err;
 728         } else {
 729                 ret = 1;
 730                 /* Inplace byte reversal of signature */
 731                 for(i = 0; i < slen / 2; i++) {
 732                         unsigned char c;
 733                         c = sigret[i];
 734                         sigret[i] = sigret[slen - i - 1];
 735                         sigret[slen - i - 1] = c;
 736                 }
 737                 *siglen = slen;
 738         }
 739
 740
 741         /* Now cleanup */
 742
 743 err:
 744         CryptDestroyHash(hash);
 745
 746         return ret;
 747 }
 748
 749 int capi_rsa_priv_dec(int flen, const unsigned char *from,
 750                 unsigned char *to, RSA *rsa, int padding)
 751 {
 752         int i;
 753         unsigned char *tmpbuf;
 754         CAPI_KEY *capi_key;
 755         CAPI_CTX *ctx;
 756         ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
 757
 758         CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
 759
 760
 761         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 762         if (!capi_key)
 763                 {
 764                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
 765                 return -1;
 766                 }
 767
 768         if(padding != RSA_PKCS1_PADDING)
 769                 {
 770                 char errstr[10];
 771                 BIO_snprintf(errstr, 10, "%d", padding);
 772                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
 773                 ERR_add_error_data(2, "padding=", errstr);
 774                 return -1;
 775                 }
 776
 777         /* Create temp reverse order version of input */
 778         if(!(tmpbuf = OPENSSL_malloc(flen)) )
 779                 {
 780                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
 781                 return -1;
 782                 }
 783         for(i = 0; i < flen; i++)
 784                 tmpbuf[flen - i - 1] = from[i];
 785
 786         /* Finally decrypt it */
 787         if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
 788                 {
 789                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
 790                 capi_addlasterror();
 791                 OPENSSL_free(tmpbuf);
 792                 return -1;
 793                 }
 794         else memcpy(to, tmpbuf, flen);
 795
 796         OPENSSL_free(tmpbuf);
 797
 798         return flen;
 799 }
 800
 801 static int capi_rsa_free(RSA *rsa)
 802         {
 803         CAPI_KEY *capi_key;
 804         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 805         capi_free_key(capi_key);
 806         RSA_set_ex_data(rsa, rsa_capi_idx, 0);
 807         return 1;
 808         }
 809
 810 /* CryptoAPI DSA operations */
 811
 812 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
 813                                                                 DSA *dsa)
 814         {
 815         HCRYPTHASH hash;
 816         DWORD slen;
 817         DSA_SIG *ret = NULL;
 818         CAPI_KEY *capi_key;
 819         CAPI_CTX *ctx;
 820         unsigned char csigbuf[40];
 821
 822         ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
 823
 824         CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
 825
 826         capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
 827
 828         if (!capi_key)
 829                 {
 830                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
 831                 return NULL;
 832                 }
 833
 834         if (dlen != 20)
 835                 {
 836                 /* Invalid signature length */
 837                 }
 838
 839         /* Create the hash object */
 840         if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
 841                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
 842                 capi_addlasterror();
 843                 return NULL;
 844         }
 845
 846         /* Set the hash value to the value passed */
 847         if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
 848                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
 849                 capi_addlasterror();
 850                 goto err;
 851         }
 852
 853
 854         /* Finally sign it */
 855         slen = 40;
 856         if(!CryptSignHash(hash, AT_SIGNATURE, NULL, 0, csigbuf, &slen))
 857                 {
 858                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
 859                 capi_addlasterror();
 860                 goto err;
 861                 }
 862         else
 863                 {
 864                 ret = DSA_SIG_new();
 865                 if (!ret)
 866                         goto err;
 867                 if (!lend_tobn(ret->r, csigbuf, 20)
 868                         || !lend_tobn(ret->s, csigbuf + 20, 20))
 869                         {
 870                         DSA_SIG_free(ret);
 871                         ret = NULL;
 872                         goto err;
 873                         }
 874                 }
 875
 876         /* Now cleanup */
 877
 878 err:
 879         OPENSSL_cleanse(csigbuf, 40);
 880         CryptDestroyHash(hash);
 881
 882         return ret;
 883         }
 884
 885 static int capi_dsa_free(DSA *dsa)
 886         {
 887         CAPI_KEY *capi_key;
 888         capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
 889         capi_free_key(capi_key);
 890         DSA_set_ex_data(dsa, dsa_capi_idx, 0);
 891         return 1;
 892         }
 893
 894 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
 895         {
 896         BIO *out;
 897
 898         if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
 899                 return;
 900         out = BIO_new_file(ctx->debug_file, "a+");
 901         BIO_vprintf(out, format, argptr);
 902         BIO_free(out);
 903         }
 904
 905 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
 906         {
 907         va_list args;
 908         va_start(args, format);
 909         capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
 910         va_end(args);
 911         }
 912
 913 static void capi_addlasterror(void)
 914         {
 915         capi_adderror(GetLastError());
 916         }
 917
 918 static void capi_adderror(DWORD err)
 919         {
 920         char errstr[10];
 921         BIO_snprintf(errstr, 10, "%lX", err);
 922         ERR_add_error_data(2, "Error code= 0x", errstr);
 923         }
 924
 925 static char *wide_to_asc(LPWSTR wstr)
 926         {
 927         char *str;
 928         if (!wstr)
 929                 return NULL;
 930         str = OPENSSL_malloc(wcslen(wstr) + 1);
 931         if (!str)
 932                 {
 933                 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
 934                 return NULL;
 935                 }
 936         sprintf(str, "%S", wstr);
 937         return str;
 938         }
 939
 940 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
 941         {
 942         LPSTR name;
 943         DWORD len, err;
 944         CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
 945         if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len))
 946                 {
 947                 err = GetLastError();
 948                 if (err == ERROR_NO_MORE_ITEMS)
 949                         return 2;
 950                 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
 951                 capi_adderror(err);
 952                 return 0;
 953                 }
 954         name = OPENSSL_malloc(len);
 955                 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len))
 956                 {
 957                 err = GetLastError();
 958                 if (err == ERROR_NO_MORE_ITEMS)
 959                         return 2;
 960                 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
 961                 capi_adderror(err);
 962                 return 0;
 963                 }
 964         *pname = name;
 965         CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
 966
 967         return 1;
 968         }
 969
 970 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
 971         {
 972         DWORD idx, ptype;
 973         int ret;
 974         LPTSTR provname = NULL;
 975         CAPI_trace(ctx, "capi_list_providers\n");
 976         BIO_printf(out, "Available CSPs:\n");
 977         for(idx = 0; ; idx++)
 978                 {
 979                 ret = capi_get_provname(ctx, &provname, &ptype, idx);
 980                 if (ret == 2)
 981                         break;
 982                 if (ret == 0)
 983                         break;
 984                 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
 985                 OPENSSL_free(provname);
 986                 }
 987         return 1;
 988         }
 989
 990 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
 991         {
 992         int ret = 1;
 993         HCRYPTPROV hprov;
 994         DWORD err, idx, flags, buflen = 0, clen;
 995         LPSTR cname;
 996         CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
 997         if (!CryptAcquireContext(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
 998                 {
 999                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1000                 capi_addlasterror();
1001                 return 0;
1002                 }
1003         if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1004                 {
1005                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1006                 capi_addlasterror();
1007                 return 0;
1008                 }
1009         CAPI_trace(ctx, "Got max container len %d\n", buflen);
1010         if (buflen == 0)
1011                 buflen = 1024;
1012         cname = OPENSSL_malloc(buflen);
1013         if (!cname)
1014                 {
1015                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1016                 goto err;
1017                 }
1018
1019         for (idx = 0;;idx++)
1020                 {
1021                         clen = buflen;
1022                         cname[0] = 0;
1023
1024                         if (idx == 0)
1025                                 flags = CRYPT_FIRST;
1026                         else
1027                                 flags = 0;
1028                         if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1029                                 {
1030                                 err = GetLastError();
1031                                 if (err == ERROR_NO_MORE_ITEMS)
1032                                         goto done;
1033                                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1034                                 capi_adderror(err);
1035                                 goto err;
1036                                 }
1037                         CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1038                         if (!cname[0] && (clen == buflen))
1039                                 {
1040                                 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1041                                 goto done;
1042                                 }
1043                         BIO_printf(out, "%d. %s\n", idx, cname);
1044                 }
1045         err:
1046
1047         ret = 0;
1048
1049         done:
1050         if (cname)
1051                 OPENSSL_free(cname);
1052         CryptReleaseContext(hprov, 0);
1053
1054         return ret;
1055         }
1056
1057 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1058         {
1059         DWORD len;
1060         CRYPT_KEY_PROV_INFO *pinfo;
1061
1062         if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1063                 return NULL;
1064         pinfo = OPENSSL_malloc(len);
1065         if (!pinfo)
1066                 {
1067                 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1068                 return NULL;
1069                 }
1070         if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1071                 {
1072                 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1073                 capi_addlasterror();
1074                 OPENSSL_free(pinfo);
1075                 return NULL;
1076                 }
1077         return pinfo;
1078         }
1079
1080 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1081         {
1082         char *provname = NULL, *contname = NULL;
1083         if (!pinfo)
1084                 {
1085                 BIO_printf(out, "  No Private Key\n");
1086                 return;
1087                 }
1088         provname = wide_to_asc(pinfo->pwszProvName);
1089         contname = wide_to_asc(pinfo->pwszContainerName);
1090         if (!provname || !contname)
1091                 goto err;
1092
1093         BIO_printf(out, "  Private Key Info:\n");
1094         BIO_printf(out, "    Provider Name:  %s, Provider Type %d\n", provname, pinfo->dwProvType);
1095         BIO_printf(out, "    Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1096         err:
1097         if (provname)
1098                 OPENSSL_free(provname);
1099         if (contname)
1100                 OPENSSL_free(contname);
1101         }
1102
1103 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1104         {
1105         LPWSTR wfname;
1106         DWORD dlen;
1107
1108         CAPI_trace(ctx, "capi_cert_get_fname\n");
1109         if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1110                 return NULL;
1111         wfname = OPENSSL_malloc(dlen);
1112         if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1113                 {
1114                 char *fname = wide_to_asc(wfname);
1115                 OPENSSL_free(wfname);
1116                 return fname;
1117                 }
1118         CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1119         capi_addlasterror();
1120
1121         OPENSSL_free(wfname);
1122         return NULL;
1123         }
1124
1125
1126 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1127         {
1128         X509 *x;
1129         unsigned char *p;
1130         unsigned long flags = ctx->dump_flags;
1131         if (flags & CAPI_DMP_FNAME)
1132                 {
1133                 char *fname;
1134                 fname = capi_cert_get_fname(ctx, cert);
1135                 if (fname)
1136                         {
1137                         BIO_printf(out, "  Friendly Name \"%s\"\n", fname);
1138                         OPENSSL_free(fname);
1139                         }
1140                 else
1141                         BIO_printf(out, "  <No Friendly Name>\n");
1142                 }
1143
1144         p = cert->pbCertEncoded;
1145         x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1146         if (!x)
1147                 BIO_printf(out, "  <Can't parse certificate>\n");
1148         if (flags & CAPI_DMP_SUMMARY)
1149                 {
1150                 BIO_printf(out, "  Subject: ");
1151                 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1152                 BIO_printf(out, "\n  Issuer: ");
1153                 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1154                 BIO_printf(out, "\n");
1155                 }
1156         if (flags & CAPI_DMP_FULL)
1157                 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1158
1159         if (flags & CAPI_DMP_PKEYINFO)
1160                 {
1161                 CRYPT_KEY_PROV_INFO *pinfo;
1162                 pinfo = capi_get_prov_info(ctx, cert);
1163                 capi_dump_prov_info(ctx, out, pinfo);
1164                 if (pinfo)
1165                         OPENSSL_free(pinfo);
1166                 }
1167
1168         if (flags & CAPI_DMP_PEM)
1169                 PEM_write_bio_X509(out, x);
1170         X509_free(x);
1171         }
1172
1173 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1174         {
1175         HCERTSTORE hstore;
1176
1177         if (!storename)
1178                 storename = ctx->storename;
1179         if (!storename)
1180                 storename = "MY";
1181         CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1182
1183         hstore = CertOpenSystemStore(0, storename);
1184         if (!hstore)
1185                 {
1186                 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1187                 capi_addlasterror();
1188                 }
1189         return hstore;
1190         }
1191
1192 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1193         {
1194         char *storename;
1195         int idx;
1196         int ret = 1;
1197         HCERTSTORE hstore;
1198         PCCERT_CONTEXT cert = NULL;
1199
1200         storename = ctx->storename;
1201         if (!storename)
1202                 storename = "MY";
1203         CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1204
1205         hstore = capi_open_store(ctx, storename);
1206         if (!hstore)
1207                 return 0;
1208         if (id)
1209                 {
1210                 cert = capi_find_cert(ctx, id, hstore);
1211                 if (!cert)
1212                         {
1213                         ret = 0;
1214                         goto err;
1215                         }
1216                 capi_dump_cert(ctx, out, cert);
1217                 CertFreeCertificateContext(cert);
1218                 }
1219         else
1220                 {
1221                 for(idx = 0;;idx++)
1222                         {
1223                         LPWSTR fname = NULL;
1224                         cert = CertEnumCertificatesInStore(hstore, cert);
1225                         if (!cert)
1226                                 break;
1227                         BIO_printf(out, "Certificate %d\n", idx);
1228                         capi_dump_cert(ctx, out, cert);
1229                         }
1230                 }
1231         err:
1232         CertCloseStore(hstore, 0);
1233         return ret;
1234         }
1235
1236 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1237         {
1238         PCCERT_CONTEXT cert = NULL;
1239         char *fname = NULL;
1240         int match;
1241         switch(ctx->lookup_method)
1242                 {
1243                 case CAPI_LU_SUBSTR:
1244                         return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0,
1245                                                                                         CERT_FIND_SUBJECT_STR_A, id, NULL);
1246                 case CAPI_LU_FNAME:
1247                         for(;;)
1248                                 {
1249                                 cert = CertEnumCertificatesInStore(hstore, cert);
1250                                 if (!cert)
1251                                         return NULL;
1252                                 fname = capi_cert_get_fname(ctx, cert);
1253                                 if (fname)
1254                                         {
1255                                         if (strcmp(fname, id))
1256                                                 match = 0;
1257                                         else
1258                                                 match = 1;
1259                                         OPENSSL_free(fname);
1260                                         if (match)
1261                                                 return cert;
1262                                         }
1263                                 }
1264                 default:
1265                         return NULL;
1266                 }
1267         }
1268
1269 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1270         {
1271         CAPI_KEY *key;
1272         key = OPENSSL_malloc(sizeof(CAPI_KEY));
1273         CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1274                                                                                                                         contname, provname, ptype);
1275         if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, 0))
1276                 {
1277                 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1278                 capi_addlasterror();
1279                 goto err;
1280                 }
1281         if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1282                 {
1283                 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1284                 capi_addlasterror();
1285                 CryptReleaseContext(key->hprov, 0);
1286                 goto err;
1287                 }
1288         return key;
1289
1290         err:
1291         OPENSSL_free(key);
1292         return NULL;
1293         }
1294
1295 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1296         {
1297         CAPI_KEY *key;
1298         CRYPT_KEY_PROV_INFO *pinfo = NULL;
1299         char *provname = NULL, *contname = NULL;
1300         pinfo = capi_get_prov_info(ctx, cert);
1301         if (!pinfo)
1302                 goto err;
1303         provname = wide_to_asc(pinfo->pwszProvName);
1304         contname = wide_to_asc(pinfo->pwszContainerName);
1305         if (!provname || !contname)
1306                 return 0;
1307
1308         key = capi_get_key(ctx, contname, provname, pinfo->dwProvType, pinfo->dwKeySpec);
1309
1310         err:
1311         if (pinfo)
1312                 OPENSSL_free(pinfo);
1313         if (provname)
1314                 OPENSSL_free(provname);
1315         if (contname)
1316                 OPENSSL_free(contname);
1317         return key;
1318         }
1319
1320 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1321         {
1322         PCCERT_CONTEXT cert;
1323         HCERTSTORE hstore;
1324         CAPI_KEY *key = NULL;
1325         switch (ctx->lookup_method)
1326                 {
1327                 case CAPI_LU_SUBSTR:
1328                 case CAPI_LU_FNAME:
1329                 hstore = capi_open_store(ctx, NULL);
1330                 if (!hstore)
1331                         return NULL;
1332                 cert = capi_find_cert(ctx, id, hstore);
1333                 if (cert)
1334                         {
1335                         key = capi_get_cert_key(ctx, cert);
1336                         CertFreeCertificateContext(cert);
1337                         }
1338                 CertCloseStore(hstore, 0);
1339                 break;
1340
1341                 case CAPI_LU_CONTNAME:
1342                 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype, ctx->keytype);
1343                 break;
1344                 }
1345
1346         return key;
1347         }
1348
1349 void capi_free_key(CAPI_KEY *key)
1350         {
1351         if (!key)
1352                 return;
1353         CryptDestroyKey(key->key);
1354         CryptReleaseContext(key->hprov, 0);
1355         OPENSSL_free(key);
1356         }
1357
1358
1359 /* Initialize a CAPI_CTX structure */
1360
1361 static CAPI_CTX *capi_ctx_new()
1362         {
1363         CAPI_CTX *ctx;
1364         ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1365         if (!ctx)
1366                 {
1367                 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1368                 return NULL;
1369                 }
1370         ctx->cspname = NULL;
1371         ctx->csptype = PROV_RSA_FULL;
1372         ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1373         ctx->keytype = AT_KEYEXCHANGE;
1374         ctx->storename = NULL;
1375         ctx->lookup_method = CAPI_LU_SUBSTR;
1376         ctx->debug_level = 0;
1377         ctx->debug_file = NULL;
1378         return ctx;
1379         }
1380
1381 static void capi_ctx_free(CAPI_CTX *ctx)
1382         {
1383         CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1384         if (!ctx)
1385                 return;
1386         if (ctx->cspname)
1387                 OPENSSL_free(ctx->cspname);
1388         if (ctx->debug_file)
1389                 OPENSSL_free(ctx->debug_file);
1390         if (ctx->storename)
1391                 OPENSSL_free(ctx->storename);
1392         OPENSSL_free(ctx);
1393         }
1394
1395 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1396         {
1397         CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1398         if (check)
1399                 {
1400                 HCRYPTPROV hprov;
1401                 if (!CryptAcquireContext(&hprov, NULL, pname, type, CRYPT_VERIFYCONTEXT))
1402                         {
1403                         CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1404                         capi_addlasterror();
1405                         return 0;
1406                         }
1407                 CryptReleaseContext(hprov, 0);
1408                 }
1409         ctx->cspname = BUF_strdup(pname);
1410         ctx->csptype = type;
1411         return 1;
1412         }
1413
1414 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1415         {
1416         LPSTR pname;
1417         DWORD type;
1418         if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1419                 return 0;
1420         return capi_ctx_set_provname(ctx, pname, type, 0);
1421         }
1422
1423 #endif
1424 #endif