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 <windows.h>
  58 #include <wincrypt.h>
  59 #include <openssl/crypto.h>
  60 #include <openssl/buffer.h>
  61 #include <openssl/engine.h>
  62 #include <openssl/rsa.h>
  63 #include <openssl/bn.h>
  64 #include <openssl/pem.h>
  65
  66 #ifdef OPENSSL_SYS_WIN32
  67 #ifndef OPENSSL_NO_CAPIENG
  68
  69 #ifndef _WIN32_WINNT
  70 #define _WIN32_WINNT 0x400
  71 #endif
  72
  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 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
 113         STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
 114         STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
 115
 116 /* This structure contains CAPI ENGINE specific data:
 117  * it contains various global options and affects how
 118  * other functions behave.
 119  */
 120
 121 #define CAPI_DBG_TRACE  2
 122 #define CAPI_DBG_ERROR  1
 123
 124 struct CAPI_CTX_st {
 125         int debug_level;
 126         char *debug_file;
 127         /* Parameters to use for container lookup */
 128         DWORD keytype;
 129         LPTSTR cspname;
 130         DWORD csptype;
 131         /* Certificate store name to use */
 132         LPTSTR storename;
 133         LPTSTR ssl_client_store;
 134
 135 /* Lookup string meanings in load_private_key */
 136 /* Substring of subject: uses "storename" */
 137 #define CAPI_LU_SUBSTR          0
 138 /* Friendly name: uses storename */
 139 #define CAPI_LU_FNAME           1
 140 /* Container name: uses cspname, keytype */
 141 #define CAPI_LU_CONTNAME        2
 142         int lookup_method;
 143 /* Info to dump with dumpcerts option */
 144 /* Issuer and serial name strings */
 145 #define CAPI_DMP_SUMMARY        0x1
 146 /* Friendly name */
 147 #define CAPI_DMP_FNAME          0x2
 148 /* Full X509_print dump */
 149 #define CAPI_DMP_FULL           0x4
 150 /* Dump PEM format certificate */
 151 #define CAPI_DMP_PEM            0x8
 152 /* Dump pseudo key (if possible) */
 153 #define CAPI_DMP_PSKEY          0x10
 154 /* Dump key info (if possible) */
 155 #define CAPI_DMP_PKEYINFO       0x20
 156
 157         DWORD dump_flags;
 158 };
 159
 160
 161 static CAPI_CTX *capi_ctx_new();
 162 static void capi_ctx_free(CAPI_CTX *ctx);
 163 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
 164 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
 165
 166 #define CAPI_CMD_LIST_CERTS             ENGINE_CMD_BASE
 167 #define CAPI_CMD_LOOKUP_CERT            (ENGINE_CMD_BASE + 1)
 168 #define CAPI_CMD_DEBUG_LEVEL            (ENGINE_CMD_BASE + 2)
 169 #define CAPI_CMD_DEBUG_FILE             (ENGINE_CMD_BASE + 3)
 170 #define CAPI_CMD_KEYTYPE                (ENGINE_CMD_BASE + 4)
 171 #define CAPI_CMD_LIST_CSPS              (ENGINE_CMD_BASE + 5)
 172 #define CAPI_CMD_SET_CSP_IDX            (ENGINE_CMD_BASE + 6)
 173 #define CAPI_CMD_SET_CSP_NAME           (ENGINE_CMD_BASE + 7)
 174 #define CAPI_CMD_SET_CSP_TYPE           (ENGINE_CMD_BASE + 8)
 175 #define CAPI_CMD_LIST_CONTAINERS        (ENGINE_CMD_BASE + 9)
 176 #define CAPI_CMD_LIST_OPTIONS           (ENGINE_CMD_BASE + 10)
 177 #define CAPI_CMD_LOOKUP_METHOD          (ENGINE_CMD_BASE + 11)
 178 #define CAPI_CMD_STORE_NAME             (ENGINE_CMD_BASE + 12)
 179
 180 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
 181         {CAPI_CMD_LIST_CERTS,
 182                 "list_certs",
 183                 "List all certificates in store",
 184                 ENGINE_CMD_FLAG_NO_INPUT},
 185         {CAPI_CMD_LOOKUP_CERT,
 186                 "lookup_cert",
 187                 "Lookup and output certificates",
 188                 ENGINE_CMD_FLAG_STRING},
 189         {CAPI_CMD_DEBUG_LEVEL,
 190                 "debug_level",
 191                 "debug level (1=errors, 2=trace)",
 192                 ENGINE_CMD_FLAG_NUMERIC},
 193         {CAPI_CMD_DEBUG_FILE,
 194                 "debug_file",
 195                 "debugging filename)",
 196                 ENGINE_CMD_FLAG_STRING},
 197         {CAPI_CMD_KEYTYPE,
 198                 "key_type",
 199                 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
 200                 ENGINE_CMD_FLAG_NUMERIC},
 201         {CAPI_CMD_LIST_CSPS,
 202                 "list_csps",
 203                 "List all CSPs",
 204                 ENGINE_CMD_FLAG_NO_INPUT},
 205         {CAPI_CMD_SET_CSP_IDX,
 206                 "csp_idx",
 207                 "Set CSP by index",
 208                 ENGINE_CMD_FLAG_NUMERIC},
 209         {CAPI_CMD_SET_CSP_NAME,
 210                 "csp_name",
 211                 "Set CSP name, (default CSP used if not specified)",
 212                 ENGINE_CMD_FLAG_STRING},
 213         {CAPI_CMD_SET_CSP_TYPE,
 214                 "csp_type",
 215                 "Set CSP type, (default RSA_PROV_FULL)",
 216                 ENGINE_CMD_FLAG_NUMERIC},
 217         {CAPI_CMD_LIST_CONTAINERS,
 218                 "list_containers",
 219                 "list container names",
 220                 ENGINE_CMD_FLAG_NO_INPUT},
 221         {CAPI_CMD_LIST_OPTIONS,
 222                 "list_options",
 223                 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
 224                 "32=private key info)",
 225                 ENGINE_CMD_FLAG_NUMERIC},
 226         {CAPI_CMD_LOOKUP_METHOD,
 227                 "lookup_method",
 228                 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
 229                 ENGINE_CMD_FLAG_NUMERIC},
 230         {CAPI_CMD_STORE_NAME,
 231                 "store_name",
 232                 "certificate store name, default \"MY\"",
 233                 ENGINE_CMD_FLAG_STRING},
 234
 235         {0, NULL, NULL, 0}
 236         };
 237
 238 static int capi_idx = -1;
 239 static int rsa_capi_idx = -1;
 240 static int dsa_capi_idx = -1;
 241
 242 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
 243         {
 244         int ret = 1;
 245         CAPI_CTX *ctx;
 246         BIO *out;
 247         if (capi_idx == -1)
 248                 {
 249                 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
 250                 return 0;
 251                 }
 252         ctx = ENGINE_get_ex_data(e, capi_idx);
 253         out = BIO_new_fp(stdout, BIO_NOCLOSE);
 254         switch (cmd)
 255                 {
 256                 case CAPI_CMD_LIST_CSPS:
 257                 ret = capi_list_providers(ctx, out);
 258                 break;
 259
 260                 case CAPI_CMD_LIST_CERTS:
 261                 ret = capi_list_certs(ctx, out, NULL);
 262                 break;
 263
 264                 case CAPI_CMD_LOOKUP_CERT:
 265                 ret = capi_list_certs(ctx, out, p);
 266                 break;
 267
 268                 case CAPI_CMD_LIST_CONTAINERS:
 269                 ret = capi_list_containers(ctx, out);
 270                 break;
 271
 272                 case CAPI_CMD_STORE_NAME:
 273                 if (ctx->storename)
 274                         OPENSSL_free(ctx->storename);
 275                 ctx->storename = BUF_strdup(p);
 276                 CAPI_trace(ctx, "Setting store name to %s\n", p);
 277                 break;
 278
 279                 case CAPI_CMD_DEBUG_LEVEL:
 280                 ctx->debug_level = (int)i;
 281                 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
 282                 break;
 283
 284                 case CAPI_CMD_DEBUG_FILE:
 285                 ctx->debug_file = BUF_strdup(p);
 286                 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
 287                 break;
 288
 289                 case CAPI_CMD_KEYTYPE:
 290                 ctx->keytype = i;
 291                 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
 292                 break;
 293
 294                 case CAPI_CMD_SET_CSP_IDX:
 295                 ret = capi_ctx_set_provname_idx(ctx, i);
 296                 break;
 297
 298                 case CAPI_CMD_LIST_OPTIONS:
 299                 ctx->dump_flags = i;
 300                 break;
 301
 302                 case CAPI_CMD_LOOKUP_METHOD:
 303                 if (i < 1 || i > 3)
 304                         {
 305                         CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
 306                         return 0;
 307                         }
 308                 ctx->lookup_method = i;
 309                 break;
 310
 311                 case CAPI_CMD_SET_CSP_NAME:
 312                 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
 313                 break;
 314
 315                 case CAPI_CMD_SET_CSP_TYPE:
 316                 ctx->csptype = i;
 317                 break;
 318
 319                 default:
 320                 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
 321                 ret = 0;
 322         }
 323
 324         BIO_free(out);
 325         return ret;
 326
 327         }
 328
 329 static RSA_METHOD capi_rsa_method =
 330         {
 331         "CryptoAPI RSA method",
 332         0,                              /* pub_enc */
 333         0,                              /* pub_dec */
 334         capi_rsa_priv_enc,              /* priv_enc */
 335         capi_rsa_priv_dec,              /* priv_dec */
 336         0,                              /* rsa_mod_exp */
 337         0,                              /* bn_mod_exp */
 338         0,                              /* init */
 339         capi_rsa_free,                  /* finish */
 340         RSA_FLAG_SIGN_VER,              /* flags */
 341         NULL,                           /* app_data */
 342         capi_rsa_sign,                  /* rsa_sign */
 343         0                               /* rsa_verify */
 344         };
 345
 346 static DSA_METHOD capi_dsa_method =
 347         {
 348         "CryptoAPI DSA method",
 349         capi_dsa_do_sign,               /* dsa_do_sign */
 350         0,                              /* dsa_sign_setup */
 351         0,                              /* dsa_do_verify */
 352         0,                              /* dsa_mod_exp */
 353         0,                              /* bn_mod_exp */
 354         0,                              /* init */
 355         capi_dsa_free,                  /* finish */
 356         0,                              /* flags */
 357         NULL,                           /* app_data */
 358         0,                              /* dsa_paramgen */
 359         0                               /* dsa_keygen */
 360         };
 361
 362 static int capi_init(ENGINE *e)
 363         {
 364         CAPI_CTX *ctx;
 365         const RSA_METHOD *ossl_rsa_meth;
 366         const DSA_METHOD *ossl_dsa_meth;
 367         capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
 368
 369         ctx = capi_ctx_new();
 370         if (!ctx || (capi_idx < 0))
 371                 goto memerr;
 372
 373         ENGINE_set_ex_data(e, capi_idx, ctx);
 374         /* Setup RSA_METHOD */
 375         rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
 376         ossl_rsa_meth = RSA_PKCS1_SSLeay();
 377         capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
 378         capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
 379         capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
 380         capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
 381
 382         /* Setup DSA Method */
 383         dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
 384         ossl_dsa_meth = DSA_OpenSSL();
 385         capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
 386         capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
 387         capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
 388
 389         return 1;
 390
 391         memerr:
 392         CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
 393         return 0;
 394
 395         return 1;
 396         }
 397
 398 static int capi_destroy(ENGINE *e)
 399         {
 400         ERR_unload_CAPI_strings();
 401         return 1;
 402         }
 403
 404 static int capi_finish(ENGINE *e)
 405         {
 406         CAPI_CTX *ctx;
 407         ctx = ENGINE_get_ex_data(e, capi_idx);
 408         capi_ctx_free(ctx);
 409         ENGINE_set_ex_data(e, capi_idx, NULL);
 410         return 1;
 411         }
 412
 413
 414 /* CryptoAPI key application data. This contains
 415  * a handle to the private key container (for sign operations)
 416  * and a handle to the key (for decrypt operations).
 417  */
 418
 419 struct CAPI_KEY_st
 420         {
 421         HCRYPTPROV hprov;
 422         HCRYPTKEY key;
 423         DWORD keyspec;
 424         };
 425
 426 static int bind_capi(ENGINE *e)
 427         {
 428         if (!ENGINE_set_id(e, engine_capi_id)
 429                 || !ENGINE_set_name(e, engine_capi_name)
 430                 || !ENGINE_set_init_function(e, capi_init)
 431                 || !ENGINE_set_finish_function(e, capi_finish)
 432                 || !ENGINE_set_destroy_function(e, capi_destroy)
 433                 || !ENGINE_set_RSA(e, &capi_rsa_method)
 434                 || !ENGINE_set_DSA(e, &capi_dsa_method)
 435                 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
 436                 || !ENGINE_set_load_ssl_client_cert_function(e,
 437                                                 capi_load_ssl_client_cert)
 438                 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
 439                 || !ENGINE_set_ctrl_function(e, capi_ctrl))
 440                         return 0;
 441         ERR_load_CAPI_strings();
 442
 443         return 1;
 444
 445         }
 446
 447 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 448 static int bind_helper(ENGINE *e, const char *id)
 449         {
 450         if(id && (strcmp(id, engine_capi_id) != 0))
 451                 return 0;
 452         if(!bind_capi(e))
 453                 return 0;
 454         return 1;
 455         }
 456 IMPLEMENT_DYNAMIC_CHECK_FN()
 457 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
 458 #else
 459 static ENGINE *engine_capi(void)
 460         {
 461         ENGINE *ret = ENGINE_new();
 462         if(!ret)
 463                 return NULL;
 464         if(!bind_capi(ret))
 465                 {
 466                 ENGINE_free(ret);
 467                 return NULL;
 468                 }
 469         return ret;
 470         }
 471
 472 void ENGINE_load_capi(void)
 473         {
 474         /* Copied from eng_[openssl|dyn].c */
 475         ENGINE *toadd = engine_capi();
 476         if(!toadd) return;
 477         ENGINE_add(toadd);
 478         ENGINE_free(toadd);
 479         ERR_clear_error();
 480         }
 481 #endif
 482
 483
 484 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
 485         {
 486         int i;
 487         /* Reverse buffer in place: since this is a keyblob structure
 488          * that will be freed up after conversion anyway it doesn't
 489          * matter if we change it.
 490          */
 491         for(i = 0; i < binlen / 2; i++)
 492                 {
 493                 unsigned char c;
 494                 c = bin[i];
 495                 bin[i] = bin[binlen - i - 1];
 496                 bin[binlen - i - 1] = c;
 497                 }
 498
 499         if (!BN_bin2bn(bin, binlen, bn))
 500                 return 0;
 501         return 1;
 502         }
 503
 504 /* Given a CAPI_KEY get an EVP_PKEY structure */
 505
 506 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
 507         {
 508         unsigned char *pubkey = NULL;
 509         DWORD len;
 510         BLOBHEADER *bh;
 511         RSA *rkey = NULL;
 512         DSA *dkey = NULL;
 513         EVP_PKEY *ret = NULL;
 514         if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
 515                 {
 516                 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
 517                 capi_addlasterror();
 518                 return NULL;
 519                 }
 520
 521         pubkey = OPENSSL_malloc(len);
 522
 523         if (!pubkey)
 524                 goto memerr;
 525
 526         if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
 527                 {
 528                 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
 529                 capi_addlasterror();
 530                 goto err;
 531                 }
 532
 533         bh = (BLOBHEADER *)pubkey;
 534         if (bh->bType != PUBLICKEYBLOB)
 535                 {
 536                 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
 537                 goto err;
 538                 }
 539         if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
 540                 {
 541                 RSAPUBKEY *rp;
 542                 DWORD rsa_modlen;
 543                 unsigned char *rsa_modulus;
 544                 rp = (RSAPUBKEY *)(bh + 1);
 545                 if (rp->magic != 0x31415352)
 546                         {
 547                         char magstr[10];
 548                         BIO_snprintf(magstr, 10, "%lx", rp->magic);
 549                         CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
 550                         ERR_add_error_data(2, "magic=0x", magstr);
 551                         goto err;
 552                         }
 553                 rsa_modulus = (unsigned char *)(rp + 1);
 554                 rkey = RSA_new_method(eng);
 555                 if (!rkey)
 556                         goto memerr;
 557
 558                 rkey->e = BN_new();
 559                 rkey->n = BN_new();
 560
 561                 if (!rkey->e || !rkey->n)
 562                         goto memerr;
 563
 564                 if (!BN_set_word(rkey->e, rp->pubexp))
 565                         goto memerr;
 566
 567                 rsa_modlen = rp->bitlen / 8;
 568                 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
 569                         goto memerr;
 570
 571                 RSA_set_ex_data(rkey, rsa_capi_idx, key);
 572
 573                 if (!(ret = EVP_PKEY_new()))
 574                         goto memerr;
 575
 576                 EVP_PKEY_assign_RSA(ret, rkey);
 577                 rkey = NULL;
 578
 579                 }
 580         else if (bh->aiKeyAlg == CALG_DSS_SIGN)
 581                 {
 582                 DSSPUBKEY *dp;
 583                 DWORD dsa_plen;
 584                 unsigned char *btmp;
 585                 dp = (DSSPUBKEY *)(bh + 1);
 586                 if (dp->magic != 0x31535344)
 587                         {
 588                         char magstr[10];
 589                         BIO_snprintf(magstr, 10, "%lx", dp->magic);
 590                         CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
 591                         ERR_add_error_data(2, "magic=0x", magstr);
 592                         goto err;
 593                         }
 594                 dsa_plen = dp->bitlen / 8;
 595                 btmp = (unsigned char *)(dp + 1);
 596                 dkey = DSA_new_method(eng);
 597                 if (!dkey)
 598                         goto memerr;
 599                 dkey->p = BN_new();
 600                 dkey->q = BN_new();
 601                 dkey->g = BN_new();
 602                 dkey->pub_key = BN_new();
 603                 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
 604                         goto memerr;
 605                 if (!lend_tobn(dkey->p, btmp, dsa_plen))
 606                         goto memerr;
 607                 btmp += dsa_plen;
 608                 if (!lend_tobn(dkey->q, btmp, 20))
 609                         goto memerr;
 610                 btmp += 20;
 611                 if (!lend_tobn(dkey->g, btmp, dsa_plen))
 612                         goto memerr;
 613                 btmp += dsa_plen;
 614                 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
 615                         goto memerr;
 616                 btmp += dsa_plen;
 617
 618                 DSA_set_ex_data(dkey, dsa_capi_idx, key);
 619
 620                 if (!(ret = EVP_PKEY_new()))
 621                         goto memerr;
 622
 623                 EVP_PKEY_assign_DSA(ret, dkey);
 624                 dkey = NULL;
 625                 }
 626         else
 627                 {
 628                 char algstr[10];
 629                 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
 630                 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
 631                 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
 632                 goto err;
 633                 }
 634
 635
 636         err:
 637         if (pubkey)
 638                 OPENSSL_free(pubkey);
 639         if (!ret)
 640                 {
 641                 if (rkey)
 642                         RSA_free(rkey);
 643                 if (dkey)
 644                         DSA_free(dkey);
 645                 }
 646
 647         return ret;
 648
 649 memerr:
 650         CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, ERR_R_MALLOC_FAILURE);
 651         goto err;
 652
 653         }
 654
 655 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
 656         UI_METHOD *ui_method, void *callback_data)
 657         {
 658         CAPI_CTX *ctx;
 659         CAPI_KEY *key;
 660         EVP_PKEY *ret;
 661         ctx = ENGINE_get_ex_data(eng, capi_idx);
 662
 663         if (!ctx)
 664                 {
 665                 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
 666                 return NULL;
 667                 }
 668
 669         key = capi_find_key(ctx, key_id);
 670
 671         if (!key)
 672                 return NULL;
 673
 674         ret = capi_get_pkey(eng, key);
 675
 676         if (!ret)
 677                 capi_free_key(key);
 678         return ret;
 679
 680         }
 681
 682 /* CryptoAPI RSA operations */
 683
 684 int capi_rsa_priv_enc(int flen, const unsigned char *from,
 685                 unsigned char *to, RSA *rsa, int padding)
 686         {
 687         CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
 688         return -1;
 689         }
 690
 691 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
 692              unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
 693         {
 694         ALG_ID alg;
 695         HCRYPTHASH hash;
 696         DWORD slen;
 697         unsigned int i;
 698         int ret = -1;
 699         CAPI_KEY *capi_key;
 700         CAPI_CTX *ctx;
 701
 702         ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
 703
 704         CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
 705
 706         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 707         if (!capi_key)
 708                 {
 709                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
 710                 return -1;
 711                 }
 712 /* Convert the signature type to a CryptoAPI algorithm ID */
 713         switch(dtype)
 714                 {
 715         case NID_sha1:
 716                 alg = CALG_SHA1;
 717                 break;
 718
 719         case NID_md5:
 720                 alg = CALG_MD5;
 721                 break;
 722
 723         case NID_md5_sha1:
 724                 alg = CALG_SSL3_SHAMD5;
 725                 break;
 726         default:
 727                 {
 728                 char algstr[10];
 729                 BIO_snprintf(algstr, 10, "%lx", dtype);
 730                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
 731                 ERR_add_error_data(2, "NID=0x", algstr);
 732                 return -1;
 733                 }
 734         }
 735
 736
 737
 738 /* Create the hash object */
 739         if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
 740                 {
 741                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
 742                 capi_addlasterror();
 743                 return -1;
 744                 }
 745 /* Set the hash value to the value passed */
 746
 747         if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
 748                 {
 749                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
 750                 capi_addlasterror();
 751                 goto err;
 752                 }
 753
 754
 755 /* Finally sign it */
 756         slen = RSA_size(rsa);
 757         if(!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
 758                 {
 759                 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
 760                 capi_addlasterror();
 761                 goto err;
 762                 }
 763         else
 764                 {
 765                 ret = 1;
 766                 /* Inplace byte reversal of signature */
 767                 for(i = 0; i < slen / 2; i++)
 768                         {
 769                         unsigned char c;
 770                         c = sigret[i];
 771                         sigret[i] = sigret[slen - i - 1];
 772                         sigret[slen - i - 1] = c;
 773                         }
 774                 *siglen = slen;
 775                 }
 776
 777
 778         /* Now cleanup */
 779
 780 err:
 781         CryptDestroyHash(hash);
 782
 783         return ret;
 784         }
 785
 786 int capi_rsa_priv_dec(int flen, const unsigned char *from,
 787                 unsigned char *to, RSA *rsa, int padding)
 788         {
 789         int i;
 790         unsigned char *tmpbuf;
 791         CAPI_KEY *capi_key;
 792         CAPI_CTX *ctx;
 793         ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
 794
 795         CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
 796
 797
 798         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 799         if (!capi_key)
 800                 {
 801                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
 802                 return -1;
 803                 }
 804
 805         if(padding != RSA_PKCS1_PADDING)
 806                 {
 807                 char errstr[10];
 808                 BIO_snprintf(errstr, 10, "%d", padding);
 809                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
 810                 ERR_add_error_data(2, "padding=", errstr);
 811                 return -1;
 812                 }
 813
 814         /* Create temp reverse order version of input */
 815         if(!(tmpbuf = OPENSSL_malloc(flen)) )
 816                 {
 817                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
 818                 return -1;
 819                 }
 820         for(i = 0; i < flen; i++)
 821                 tmpbuf[flen - i - 1] = from[i];
 822
 823         /* Finally decrypt it */
 824         if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
 825                 {
 826                 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
 827                 capi_addlasterror();
 828                 OPENSSL_free(tmpbuf);
 829                 return -1;
 830                 }
 831         else memcpy(to, tmpbuf, flen);
 832
 833         OPENSSL_free(tmpbuf);
 834
 835         return flen;
 836         }
 837
 838 static int capi_rsa_free(RSA *rsa)
 839         {
 840         CAPI_KEY *capi_key;
 841         capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
 842         capi_free_key(capi_key);
 843         RSA_set_ex_data(rsa, rsa_capi_idx, 0);
 844         return 1;
 845         }
 846
 847 /* CryptoAPI DSA operations */
 848
 849 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
 850                                                                 DSA *dsa)
 851         {
 852         HCRYPTHASH hash;
 853         DWORD slen;
 854         DSA_SIG *ret = NULL;
 855         CAPI_KEY *capi_key;
 856         CAPI_CTX *ctx;
 857         unsigned char csigbuf[40];
 858
 859         ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
 860
 861         CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
 862
 863         capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
 864
 865         if (!capi_key)
 866                 {
 867                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
 868                 return NULL;
 869                 }
 870
 871         if (dlen != 20)
 872                 {
 873                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
 874                 return NULL;
 875                 }
 876
 877         /* Create the hash object */
 878         if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
 879                 {
 880                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
 881                 capi_addlasterror();
 882                 return NULL;
 883                 }
 884
 885         /* Set the hash value to the value passed */
 886         if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
 887                 {
 888                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
 889                 capi_addlasterror();
 890                 goto err;
 891                 }
 892
 893
 894         /* Finally sign it */
 895         slen = sizeof(csigbuf);
 896         if(!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
 897                 {
 898                 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
 899                 capi_addlasterror();
 900                 goto err;
 901                 }
 902         else
 903                 {
 904                 ret = DSA_SIG_new();
 905                 if (!ret)
 906                         goto err;
 907                 ret->r = BN_new();
 908                 ret->s = BN_new();
 909                 if (!ret->r || !ret->s)
 910                         goto err;
 911                 if (!lend_tobn(ret->r, csigbuf, 20)
 912                         || !lend_tobn(ret->s, csigbuf + 20, 20))
 913                         {
 914                         DSA_SIG_free(ret);
 915                         ret = NULL;
 916                         goto err;
 917                         }
 918                 }
 919
 920         /* Now cleanup */
 921
 922 err:
 923         OPENSSL_cleanse(csigbuf, 40);
 924         CryptDestroyHash(hash);
 925         return ret;
 926         }
 927
 928 static int capi_dsa_free(DSA *dsa)
 929         {
 930         CAPI_KEY *capi_key;
 931         capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
 932         capi_free_key(capi_key);
 933         DSA_set_ex_data(dsa, dsa_capi_idx, 0);
 934         return 1;
 935         }
 936
 937 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
 938         {
 939         BIO *out;
 940
 941         if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
 942                 return;
 943         out = BIO_new_file(ctx->debug_file, "a+");
 944         BIO_vprintf(out, format, argptr);
 945         BIO_free(out);
 946         }
 947
 948 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
 949         {
 950         va_list args;
 951         va_start(args, format);
 952         capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
 953         va_end(args);
 954         }
 955
 956 static void capi_addlasterror(void)
 957         {
 958         capi_adderror(GetLastError());
 959         }
 960
 961 static void capi_adderror(DWORD err)
 962         {
 963         char errstr[10];
 964         BIO_snprintf(errstr, 10, "%lX", err);
 965         ERR_add_error_data(2, "Error code= 0x", errstr);
 966         }
 967
 968 static char *wide_to_asc(LPWSTR wstr)
 969         {
 970         char *str;
 971         if (!wstr)
 972                 return NULL;
 973         str = OPENSSL_malloc(wcslen(wstr) + 1);
 974         if (!str)
 975                 {
 976                 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
 977                 return NULL;
 978                 }
 979         sprintf(str, "%S", wstr);
 980         return str;
 981         }
 982
 983 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
 984         {
 985         LPSTR name;
 986         DWORD len, err;
 987         CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
 988         if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len))
 989                 {
 990                 err = GetLastError();
 991                 if (err == ERROR_NO_MORE_ITEMS)
 992                         return 2;
 993                 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
 994                 capi_adderror(err);
 995                 return 0;
 996                 }
 997         name = OPENSSL_malloc(len);
 998                 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len))
 999                 {
1000                 err = GetLastError();
1001                 if (err == ERROR_NO_MORE_ITEMS)
1002                         return 2;
1003                 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1004                 capi_adderror(err);
1005                 return 0;
1006                 }
1007         *pname = name;
1008         CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
1009
1010         return 1;
1011         }
1012
1013 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1014         {
1015         DWORD idx, ptype;
1016         int ret;
1017         LPTSTR provname = NULL;
1018         CAPI_trace(ctx, "capi_list_providers\n");
1019         BIO_printf(out, "Available CSPs:\n");
1020         for(idx = 0; ; idx++)
1021                 {
1022                 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1023                 if (ret == 2)
1024                         break;
1025                 if (ret == 0)
1026                         break;
1027                 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1028                 OPENSSL_free(provname);
1029                 }
1030         return 1;
1031         }
1032
1033 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1034         {
1035         int ret = 1;
1036         HCRYPTPROV hprov;
1037         DWORD err, idx, flags, buflen = 0, clen;
1038         LPSTR cname;
1039         CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
1040         if (!CryptAcquireContext(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
1041                 {
1042                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1043                 capi_addlasterror();
1044                 return 0;
1045                 }
1046         if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1047                 {
1048                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1049                 capi_addlasterror();
1050                 return 0;
1051                 }
1052         CAPI_trace(ctx, "Got max container len %d\n", buflen);
1053         if (buflen == 0)
1054                 buflen = 1024;
1055         cname = OPENSSL_malloc(buflen);
1056         if (!cname)
1057                 {
1058                 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1059                 goto err;
1060                 }
1061
1062         for (idx = 0;;idx++)
1063                 {
1064                 clen = buflen;
1065                 cname[0] = 0;
1066
1067                 if (idx == 0)
1068                         flags = CRYPT_FIRST;
1069                 else
1070                         flags = 0;
1071                 if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1072                         {
1073                         err = GetLastError();
1074                         if (err == ERROR_NO_MORE_ITEMS)
1075                                 goto done;
1076                         CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1077                         capi_adderror(err);
1078                         goto err;
1079                         }
1080                 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1081                 if (!cname[0] && (clen == buflen))
1082                         {
1083                         CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1084                         goto done;
1085                         }
1086                 BIO_printf(out, "%d. %s\n", idx, cname);
1087                 }
1088         err:
1089
1090         ret = 0;
1091
1092         done:
1093         if (cname)
1094                 OPENSSL_free(cname);
1095         CryptReleaseContext(hprov, 0);
1096
1097         return ret;
1098         }
1099
1100 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1101         {
1102         DWORD len;
1103         CRYPT_KEY_PROV_INFO *pinfo;
1104
1105         if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1106                 return NULL;
1107         pinfo = OPENSSL_malloc(len);
1108         if (!pinfo)
1109                 {
1110                 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1111                 return NULL;
1112                 }
1113         if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1114                 {
1115                 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1116                 capi_addlasterror();
1117                 OPENSSL_free(pinfo);
1118                 return NULL;
1119                 }
1120         return pinfo;
1121         }
1122
1123 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1124         {
1125         char *provname = NULL, *contname = NULL;
1126         if (!pinfo)
1127                 {
1128                 BIO_printf(out, "  No Private Key\n");
1129                 return;
1130                 }
1131         provname = wide_to_asc(pinfo->pwszProvName);
1132         contname = wide_to_asc(pinfo->pwszContainerName);
1133         if (!provname || !contname)
1134                 goto err;
1135
1136         BIO_printf(out, "  Private Key Info:\n");
1137         BIO_printf(out, "    Provider Name:  %s, Provider Type %d\n", provname, pinfo->dwProvType);
1138         BIO_printf(out, "    Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1139         err:
1140         if (provname)
1141                 OPENSSL_free(provname);
1142         if (contname)
1143                 OPENSSL_free(contname);
1144         }
1145
1146 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1147         {
1148         LPWSTR wfname;
1149         DWORD dlen;
1150
1151         CAPI_trace(ctx, "capi_cert_get_fname\n");
1152         if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1153                 return NULL;
1154         wfname = OPENSSL_malloc(dlen);
1155         if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1156                 {
1157                 char *fname = wide_to_asc(wfname);
1158                 OPENSSL_free(wfname);
1159                 return fname;
1160                 }
1161         CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1162         capi_addlasterror();
1163
1164         OPENSSL_free(wfname);
1165         return NULL;
1166         }
1167
1168
1169 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1170         {
1171         X509 *x;
1172         unsigned char *p;
1173         unsigned long flags = ctx->dump_flags;
1174         if (flags & CAPI_DMP_FNAME)
1175                 {
1176                 char *fname;
1177                 fname = capi_cert_get_fname(ctx, cert);
1178                 if (fname)
1179                         {
1180                         BIO_printf(out, "  Friendly Name \"%s\"\n", fname);
1181                         OPENSSL_free(fname);
1182                         }
1183                 else
1184                         BIO_printf(out, "  <No Friendly Name>\n");
1185                 }
1186
1187         p = cert->pbCertEncoded;
1188         x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1189         if (!x)
1190                 BIO_printf(out, "  <Can't parse certificate>\n");
1191         if (flags & CAPI_DMP_SUMMARY)
1192                 {
1193                 BIO_printf(out, "  Subject: ");
1194                 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1195                 BIO_printf(out, "\n  Issuer: ");
1196                 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1197                 BIO_printf(out, "\n");
1198                 }
1199         if (flags & CAPI_DMP_FULL)
1200                 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1201
1202         if (flags & CAPI_DMP_PKEYINFO)
1203                 {
1204                 CRYPT_KEY_PROV_INFO *pinfo;
1205                 pinfo = capi_get_prov_info(ctx, cert);
1206                 capi_dump_prov_info(ctx, out, pinfo);
1207                 if (pinfo)
1208                         OPENSSL_free(pinfo);
1209                 }
1210
1211         if (flags & CAPI_DMP_PEM)
1212                 PEM_write_bio_X509(out, x);
1213         X509_free(x);
1214         }
1215
1216 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1217         {
1218         HCERTSTORE hstore;
1219
1220         if (!storename)
1221                 storename = ctx->storename;
1222         if (!storename)
1223                 storename = "MY";
1224         CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1225
1226         hstore = CertOpenSystemStore(0, storename);
1227         if (!hstore)
1228                 {
1229                 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1230                 capi_addlasterror();
1231                 }
1232         return hstore;
1233         }
1234
1235 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1236         {
1237         char *storename;
1238         int idx;
1239         int ret = 1;
1240         HCERTSTORE hstore;
1241         PCCERT_CONTEXT cert = NULL;
1242
1243         storename = ctx->storename;
1244         if (!storename)
1245                 storename = "MY";
1246         CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1247
1248         hstore = capi_open_store(ctx, storename);
1249         if (!hstore)
1250                 return 0;
1251         if (id)
1252                 {
1253                 cert = capi_find_cert(ctx, id, hstore);
1254                 if (!cert)
1255                         {
1256                         ret = 0;
1257                         goto err;
1258                         }
1259                 capi_dump_cert(ctx, out, cert);
1260                 CertFreeCertificateContext(cert);
1261                 }
1262         else
1263                 {
1264                 for(idx = 0;;idx++)
1265                         {
1266                         LPWSTR fname = NULL;
1267                         cert = CertEnumCertificatesInStore(hstore, cert);
1268                         if (!cert)
1269                                 break;
1270                         BIO_printf(out, "Certificate %d\n", idx);
1271                         capi_dump_cert(ctx, out, cert);
1272                         }
1273                 }
1274         err:
1275         CertCloseStore(hstore, 0);
1276         return ret;
1277         }
1278
1279 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1280         {
1281         PCCERT_CONTEXT cert = NULL;
1282         char *fname = NULL;
1283         int match;
1284         switch(ctx->lookup_method)
1285                 {
1286                 case CAPI_LU_SUBSTR:
1287                         return CertFindCertificateInStore(hstore,
1288                                         X509_ASN_ENCODING, 0,
1289                                         CERT_FIND_SUBJECT_STR_A, id, NULL);
1290                 case CAPI_LU_FNAME:
1291                         for(;;)
1292                                 {
1293                                 cert = CertEnumCertificatesInStore(hstore, cert);
1294                                 if (!cert)
1295                                         return NULL;
1296                                 fname = capi_cert_get_fname(ctx, cert);
1297                                 if (fname)
1298                                         {
1299                                         if (strcmp(fname, id))
1300                                                 match = 0;
1301                                         else
1302                                                 match = 1;
1303                                         OPENSSL_free(fname);
1304                                         if (match)
1305                                                 return cert;
1306                                         }
1307                                 }
1308                 default:
1309                         return NULL;
1310                 }
1311         }
1312
1313 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1314         {
1315         CAPI_KEY *key;
1316         key = OPENSSL_malloc(sizeof(CAPI_KEY));
1317         CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1318                                                 contname, provname, ptype);
1319         if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, 0))
1320                 {
1321                 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1322                 capi_addlasterror();
1323                 goto err;
1324                 }
1325         if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1326                 {
1327                 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1328                 capi_addlasterror();
1329                 CryptReleaseContext(key->hprov, 0);
1330                 goto err;
1331                 }
1332         key->keyspec = keyspec;
1333         return key;
1334
1335         err:
1336         OPENSSL_free(key);
1337         return NULL;
1338         }
1339
1340 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1341         {
1342         CAPI_KEY *key;
1343         CRYPT_KEY_PROV_INFO *pinfo = NULL;
1344         char *provname = NULL, *contname = NULL;
1345         pinfo = capi_get_prov_info(ctx, cert);
1346         if (!pinfo)
1347                 goto err;
1348         provname = wide_to_asc(pinfo->pwszProvName);
1349         contname = wide_to_asc(pinfo->pwszContainerName);
1350         if (!provname || !contname)
1351                 return 0;
1352
1353         key = capi_get_key(ctx, contname, provname,
1354                                 pinfo->dwProvType, pinfo->dwKeySpec);
1355
1356         err:
1357         if (pinfo)
1358                 OPENSSL_free(pinfo);
1359         if (provname)
1360                 OPENSSL_free(provname);
1361         if (contname)
1362                 OPENSSL_free(contname);
1363         return key;
1364         }
1365
1366 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1367         {
1368         PCCERT_CONTEXT cert;
1369         HCERTSTORE hstore;
1370         CAPI_KEY *key = NULL;
1371         switch (ctx->lookup_method)
1372                 {
1373                 case CAPI_LU_SUBSTR:
1374                 case CAPI_LU_FNAME:
1375                 hstore = capi_open_store(ctx, NULL);
1376                 if (!hstore)
1377                         return NULL;
1378                 cert = capi_find_cert(ctx, id, hstore);
1379                 if (cert)
1380                         {
1381                         key = capi_get_cert_key(ctx, cert);
1382                         CertFreeCertificateContext(cert);
1383                         }
1384                 CertCloseStore(hstore, 0);
1385                 break;
1386
1387                 case CAPI_LU_CONTNAME:
1388                 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
1389                                                         ctx->keytype);
1390                 break;
1391                 }
1392
1393         return key;
1394         }
1395
1396 void capi_free_key(CAPI_KEY *key)
1397         {
1398         if (!key)
1399                 return;
1400         CryptDestroyKey(key->key);
1401         CryptReleaseContext(key->hprov, 0);
1402         OPENSSL_free(key);
1403         }
1404
1405
1406 /* Initialize a CAPI_CTX structure */
1407
1408 static CAPI_CTX *capi_ctx_new()
1409         {
1410         CAPI_CTX *ctx;
1411         ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1412         if (!ctx)
1413                 {
1414                 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1415                 return NULL;
1416                 }
1417         ctx->cspname = NULL;
1418         ctx->csptype = PROV_RSA_FULL;
1419         ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1420         ctx->keytype = AT_KEYEXCHANGE;
1421         ctx->storename = NULL;
1422         ctx->ssl_client_store = NULL;
1423         ctx->lookup_method = CAPI_LU_SUBSTR;
1424         ctx->debug_level = 0;
1425         ctx->debug_file = NULL;
1426         return ctx;
1427         }
1428
1429 static void capi_ctx_free(CAPI_CTX *ctx)
1430         {
1431         CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1432         if (!ctx)
1433                 return;
1434         if (ctx->cspname)
1435                 OPENSSL_free(ctx->cspname);
1436         if (ctx->debug_file)
1437                 OPENSSL_free(ctx->debug_file);
1438         if (ctx->storename)
1439                 OPENSSL_free(ctx->storename);
1440         if (ctx->ssl_client_store)
1441                 OPENSSL_free(ctx->ssl_client_store);
1442         OPENSSL_free(ctx);
1443         }
1444
1445 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1446         {
1447         CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1448         if (check)
1449                 {
1450                 HCRYPTPROV hprov;
1451                 if (!CryptAcquireContext(&hprov, NULL, pname, type,
1452                                                 CRYPT_VERIFYCONTEXT))
1453                         {
1454                         CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1455                         capi_addlasterror();
1456                         return 0;
1457                         }
1458                 CryptReleaseContext(hprov, 0);
1459                 }
1460         ctx->cspname = BUF_strdup(pname);
1461         ctx->csptype = type;
1462         return 1;
1463         }
1464
1465 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1466         {
1467         LPSTR pname;
1468         DWORD type;
1469         if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1470                 return 0;
1471         return capi_ctx_set_provname(ctx, pname, type, 0);
1472         }
1473
1474 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1475         {
1476         int i;
1477         X509_NAME *nm;
1478         for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
1479                 {
1480                 nm = sk_X509_NAME_value(ca_dn, i);
1481                 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1482                                 return 1;
1483                 }
1484         return 0;
1485         }
1486
1487 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1488         STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
1489         STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
1490         {
1491 #if 0
1492         /* For now just one matching key/cert */
1493         STACK_OF(X509) *certs = NULL;
1494         STACK_OF(EVP_PKEY) *keys = NULL;
1495 #endif
1496         X509 *x;
1497         EVP_PKEY *pk;
1498         char *storename;
1499         const char *p;
1500         int i;
1501         HCERTSTORE hstore;
1502         PCCERT_CONTEXT cert = NULL;
1503         CAPI_CTX *ctx;
1504         ctx = ENGINE_get_ex_data(e, capi_idx);
1505
1506         *pcert = NULL;
1507         *pkey = NULL;
1508
1509         storename = ctx->ssl_client_store;
1510         if (!storename)
1511                 storename = "MY";
1512
1513         hstore = capi_open_store(ctx, storename);
1514         if (!hstore)
1515                 return 0;
1516         /* Enumerate all certificates looking for a match */
1517         for(i = 0;!*pcert;i++)
1518                 {
1519                 cert = CertEnumCertificatesInStore(hstore, cert);
1520                 if (!cert)
1521                         break;
1522                 p = cert->pbCertEncoded;
1523                 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1524                 if (!x)
1525                         {
1526                         CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1527                         continue;
1528                         }
1529                 if (cert_issuer_match(ca_dn, x))
1530                         {
1531                         CAPI_KEY *key = capi_get_cert_key(ctx, cert);
1532                         if (!key)
1533                                 continue;
1534                         pk = capi_get_pkey(e, key);
1535                         if (!pk)
1536                                 {
1537                                 capi_free_key(key);
1538                                 continue;
1539                                 }
1540                         *pcert = x;
1541                         *pkey = pk;
1542                         }
1543                 else
1544                         X509_free(x);
1545
1546                 }
1547
1548         if (cert)
1549                 CertFreeCertificateContext(cert);
1550
1551         if (*pcert)
1552                 return 1;
1553         else
1554                 return 0;
1555
1556         }
1557
1558 #endif
1559 #endif