1 /* 2 * Copyright 2008-2018 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #ifdef _WIN32 11 # ifndef _WIN32_WINNT 12 # define _WIN32_WINNT 0x0400 13 # endif 14 # include <windows.h> 15 # include <wincrypt.h> 16 17 # include <stdio.h> 18 # include <string.h> 19 # include <stdlib.h> 20 # include <malloc.h> 21 # ifndef alloca 22 # define alloca _alloca 23 # endif 24 25 # include <openssl/crypto.h> 26 27 # ifndef OPENSSL_NO_CAPIENG 28 29 # include <openssl/buffer.h> 30 # include <openssl/bn.h> 31 # include <openssl/rsa.h> 32 # include <openssl/dsa.h> 33 34 /* 35 * This module uses several "new" interfaces, among which is 36 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is 37 * one of possible values you can pass to function in question. By 38 * checking if it's defined we can see if wincrypt.h and accompanying 39 * crypt32.lib are in shape. The native MingW32 headers up to and 40 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the 41 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG, 42 * so we check for these too and avoid compiling. 43 * Yes, it's rather "weak" test and if compilation fails, 44 * then re-configure with -DOPENSSL_NO_CAPIENG. 45 */ 46 # if defined(CERT_KEY_PROV_INFO_PROP_ID) && \ 47 defined(CERT_STORE_PROV_SYSTEM_A) && \ 48 defined(CERT_STORE_READONLY_FLAG) 49 # define __COMPILE_CAPIENG 50 # endif /* CERT_KEY_PROV_INFO_PROP_ID */ 51 # endif /* OPENSSL_NO_CAPIENG */ 52 #endif /* _WIN32 */ 53 54 #ifdef __COMPILE_CAPIENG 55 56 # undef X509_EXTENSIONS 57 58 /* Definitions which may be missing from earlier version of headers */ 59 # ifndef CERT_STORE_OPEN_EXISTING_FLAG 60 # define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000 61 # endif 62 63 # ifndef CERT_STORE_CREATE_NEW_FLAG 64 # define CERT_STORE_CREATE_NEW_FLAG 0x00002000 65 # endif 66 67 # ifndef CERT_SYSTEM_STORE_CURRENT_USER 68 # define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000 69 # endif 70 71 # ifndef ALG_SID_SHA_256 72 # define ALG_SID_SHA_256 12 73 # endif 74 # ifndef ALG_SID_SHA_384 75 # define ALG_SID_SHA_384 13 76 # endif 77 # ifndef ALG_SID_SHA_512 78 # define ALG_SID_SHA_512 14 79 # endif 80 81 # ifndef CALG_SHA_256 82 # define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256) 83 # endif 84 # ifndef CALG_SHA_384 85 # define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384) 86 # endif 87 # ifndef CALG_SHA_512 88 # define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512) 89 # endif 90 91 # ifndef PROV_RSA_AES 92 # define PROV_RSA_AES 24 93 # endif 94 95 # include <openssl/engine.h> 96 # include <openssl/pem.h> 97 # include <openssl/x509v3.h> 98 99 # include "e_capi_err.h" 100 # include "e_capi_err.c" 101 102 static const char *engine_capi_id = "capi"; 103 static const char *engine_capi_name = "CryptoAPI ENGINE"; 104 105 typedef struct CAPI_CTX_st CAPI_CTX; 106 typedef struct CAPI_KEY_st CAPI_KEY; 107 108 static void capi_addlasterror(void); 109 static void capi_adderror(DWORD err); 110 111 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...); 112 113 static int capi_list_providers(CAPI_CTX *ctx, BIO *out); 114 static int capi_list_containers(CAPI_CTX *ctx, BIO *out); 115 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename); 116 void capi_free_key(CAPI_KEY *key); 117 118 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, 119 HCERTSTORE hstore); 120 121 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id); 122 123 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id, 124 UI_METHOD *ui_method, void *callback_data); 125 static int capi_rsa_sign(int dtype, const unsigned char *m, 126 unsigned int m_len, unsigned char *sigret, 127 unsigned int *siglen, const RSA *rsa); 128 static int capi_rsa_priv_enc(int flen, const unsigned char *from, 129 unsigned char *to, RSA *rsa, int padding); 130 static int capi_rsa_priv_dec(int flen, const unsigned char *from, 131 unsigned char *to, RSA *rsa, int padding); 132 static int capi_rsa_free(RSA *rsa); 133 134 # ifndef OPENSSL_NO_DSA 135 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen, 136 DSA *dsa); 137 static int capi_dsa_free(DSA *dsa); 138 # endif 139 140 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl, 141 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, 142 EVP_PKEY **pkey, STACK_OF(X509) **pother, 143 UI_METHOD *ui_method, 144 void *callback_data); 145 146 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); 147 # ifdef OPENSSL_CAPIENG_DIALOG 148 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); 149 # endif 150 151 void engine_load_capi_int(void); 152 153 typedef PCCERT_CONTEXT(WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR, 154 LPCWSTR, DWORD, DWORD, void *); 155 typedef HWND(WINAPI *GETCONSWIN)(void); 156 157 /* 158 * This structure contains CAPI ENGINE specific data: it contains various 159 * global options and affects how other functions behave. 160 */ 161 162 # define CAPI_DBG_TRACE 2 163 # define CAPI_DBG_ERROR 1 164 165 struct CAPI_CTX_st { 166 int debug_level; 167 char *debug_file; 168 /* Parameters to use for container lookup */ 169 DWORD keytype; 170 LPSTR cspname; 171 DWORD csptype; 172 /* Certificate store name to use */ 173 LPSTR storename; 174 LPSTR ssl_client_store; 175 /* System store flags */ 176 DWORD store_flags; 177 /* Lookup string meanings in load_private_key */ 178 # define CAPI_LU_SUBSTR 1 /* Substring of subject: uses "storename" */ 179 # define CAPI_LU_FNAME 2 /* Friendly name: uses storename */ 180 # define CAPI_LU_CONTNAME 3 /* Container name: uses cspname, keytype */ 181 int lookup_method; 182 /* Info to dump with dumpcerts option */ 183 # define CAPI_DMP_SUMMARY 0x1 /* Issuer and serial name strings */ 184 # define CAPI_DMP_FNAME 0x2 /* Friendly name */ 185 # define CAPI_DMP_FULL 0x4 /* Full X509_print dump */ 186 # define CAPI_DMP_PEM 0x8 /* Dump PEM format certificate */ 187 # define CAPI_DMP_PSKEY 0x10 /* Dump pseudo key (if possible) */ 188 # define CAPI_DMP_PKEYINFO 0x20 /* Dump key info (if possible) */ 189 DWORD dump_flags; 190 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); 191 CERTDLG certselectdlg; 192 GETCONSWIN getconswindow; 193 }; 194 195 static CAPI_CTX *capi_ctx_new(void); 196 static void capi_ctx_free(CAPI_CTX *ctx); 197 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, 198 int check); 199 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx); 200 201 # define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE 202 # define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1) 203 # define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2) 204 # define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3) 205 # define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4) 206 # define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5) 207 # define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6) 208 # define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7) 209 # define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8) 210 # define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9) 211 # define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10) 212 # define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11) 213 # define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12) 214 # define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13) 215 216 static const ENGINE_CMD_DEFN capi_cmd_defns[] = { 217 {CAPI_CMD_LIST_CERTS, 218 "list_certs", 219 "List all certificates in store", 220 ENGINE_CMD_FLAG_NO_INPUT}, 221 {CAPI_CMD_LOOKUP_CERT, 222 "lookup_cert", 223 "Lookup and output certificates", 224 ENGINE_CMD_FLAG_STRING}, 225 {CAPI_CMD_DEBUG_LEVEL, 226 "debug_level", 227 "debug level (1=errors, 2=trace)", 228 ENGINE_CMD_FLAG_NUMERIC}, 229 {CAPI_CMD_DEBUG_FILE, 230 "debug_file", 231 "debugging filename)", 232 ENGINE_CMD_FLAG_STRING}, 233 {CAPI_CMD_KEYTYPE, 234 "key_type", 235 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE", 236 ENGINE_CMD_FLAG_NUMERIC}, 237 {CAPI_CMD_LIST_CSPS, 238 "list_csps", 239 "List all CSPs", 240 ENGINE_CMD_FLAG_NO_INPUT}, 241 {CAPI_CMD_SET_CSP_IDX, 242 "csp_idx", 243 "Set CSP by index", 244 ENGINE_CMD_FLAG_NUMERIC}, 245 {CAPI_CMD_SET_CSP_NAME, 246 "csp_name", 247 "Set CSP name, (default CSP used if not specified)", 248 ENGINE_CMD_FLAG_STRING}, 249 {CAPI_CMD_SET_CSP_TYPE, 250 "csp_type", 251 "Set CSP type, (default RSA_PROV_FULL)", 252 ENGINE_CMD_FLAG_NUMERIC}, 253 {CAPI_CMD_LIST_CONTAINERS, 254 "list_containers", 255 "list container names", 256 ENGINE_CMD_FLAG_NO_INPUT}, 257 {CAPI_CMD_LIST_OPTIONS, 258 "list_options", 259 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, " 260 "32=private key info)", 261 ENGINE_CMD_FLAG_NUMERIC}, 262 {CAPI_CMD_LOOKUP_METHOD, 263 "lookup_method", 264 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)", 265 ENGINE_CMD_FLAG_NUMERIC}, 266 {CAPI_CMD_STORE_NAME, 267 "store_name", 268 "certificate store name, default \"MY\"", 269 ENGINE_CMD_FLAG_STRING}, 270 {CAPI_CMD_STORE_FLAGS, 271 "store_flags", 272 "Certificate store flags: 1 = system store", 273 ENGINE_CMD_FLAG_NUMERIC}, 274 275 {0, NULL, NULL, 0} 276 }; 277 278 static int capi_idx = -1; 279 static int rsa_capi_idx = -1; 280 static int dsa_capi_idx = -1; 281 static int cert_capi_idx = -1; 282 283 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)) 284 { 285 int ret = 1; 286 CAPI_CTX *ctx; 287 BIO *out; 288 LPSTR tmpstr; 289 if (capi_idx == -1) { 290 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED); 291 return 0; 292 } 293 ctx = ENGINE_get_ex_data(e, capi_idx); 294 out = BIO_new_fp(stdout, BIO_NOCLOSE); 295 if (out == NULL) { 296 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR); 297 return 0; 298 } 299 switch (cmd) { 300 case CAPI_CMD_LIST_CSPS: 301 ret = capi_list_providers(ctx, out); 302 break; 303 304 case CAPI_CMD_LIST_CERTS: 305 ret = capi_list_certs(ctx, out, NULL); 306 break; 307 308 case CAPI_CMD_LOOKUP_CERT: 309 ret = capi_list_certs(ctx, out, p); 310 break; 311 312 case CAPI_CMD_LIST_CONTAINERS: 313 ret = capi_list_containers(ctx, out); 314 break; 315 316 case CAPI_CMD_STORE_NAME: 317 tmpstr = OPENSSL_strdup(p); 318 if (tmpstr != NULL) { 319 OPENSSL_free(ctx->storename); 320 ctx->storename = tmpstr; 321 CAPI_trace(ctx, "Setting store name to %s\n", p); 322 } else { 323 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE); 324 ret = 0; 325 } 326 break; 327 328 case CAPI_CMD_STORE_FLAGS: 329 if (i & 1) { 330 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE; 331 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER; 332 } else { 333 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER; 334 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE; 335 } 336 CAPI_trace(ctx, "Setting flags to %d\n", i); 337 break; 338 339 case CAPI_CMD_DEBUG_LEVEL: 340 ctx->debug_level = (int)i; 341 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level); 342 break; 343 344 case CAPI_CMD_DEBUG_FILE: 345 tmpstr = OPENSSL_strdup(p); 346 if (tmpstr != NULL) { 347 ctx->debug_file = tmpstr; 348 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file); 349 } else { 350 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE); 351 ret = 0; 352 } 353 break; 354 355 case CAPI_CMD_KEYTYPE: 356 ctx->keytype = i; 357 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype); 358 break; 359 360 case CAPI_CMD_SET_CSP_IDX: 361 ret = capi_ctx_set_provname_idx(ctx, i); 362 break; 363 364 case CAPI_CMD_LIST_OPTIONS: 365 ctx->dump_flags = i; 366 break; 367 368 case CAPI_CMD_LOOKUP_METHOD: 369 if (i < 1 || i > 3) { 370 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD); 371 BIO_free(out); 372 return 0; 373 } 374 ctx->lookup_method = i; 375 break; 376 377 case CAPI_CMD_SET_CSP_NAME: 378 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1); 379 break; 380 381 case CAPI_CMD_SET_CSP_TYPE: 382 ctx->csptype = i; 383 break; 384 385 default: 386 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND); 387 ret = 0; 388 } 389 390 BIO_free(out); 391 return ret; 392 393 } 394 395 static RSA_METHOD *capi_rsa_method = NULL; 396 # ifndef OPENSSL_NO_DSA 397 static DSA_METHOD *capi_dsa_method = NULL; 398 # endif 399 400 static int use_aes_csp = 0; 401 static const WCHAR rsa_aes_cspname[] = 402 L"Microsoft Enhanced RSA and AES Cryptographic Provider"; 403 static const WCHAR rsa_enh_cspname[] = 404 L"Microsoft Enhanced Cryptographic Provider v1.0"; 405 406 static int capi_init(ENGINE *e) 407 { 408 CAPI_CTX *ctx; 409 const RSA_METHOD *ossl_rsa_meth; 410 # ifndef OPENSSL_NO_DSA 411 const DSA_METHOD *ossl_dsa_meth; 412 # endif 413 HCRYPTPROV hprov; 414 415 if (capi_idx < 0) { 416 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0); 417 if (capi_idx < 0) 418 goto memerr; 419 420 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0); 421 422 /* Setup RSA_METHOD */ 423 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0); 424 ossl_rsa_meth = RSA_PKCS1_OpenSSL(); 425 if ( !RSA_meth_set_pub_enc(capi_rsa_method, 426 RSA_meth_get_pub_enc(ossl_rsa_meth)) 427 || !RSA_meth_set_pub_dec(capi_rsa_method, 428 RSA_meth_get_pub_dec(ossl_rsa_meth)) 429 || !RSA_meth_set_priv_enc(capi_rsa_method, capi_rsa_priv_enc) 430 || !RSA_meth_set_priv_dec(capi_rsa_method, capi_rsa_priv_dec) 431 || !RSA_meth_set_mod_exp(capi_rsa_method, 432 RSA_meth_get_mod_exp(ossl_rsa_meth)) 433 || !RSA_meth_set_bn_mod_exp(capi_rsa_method, 434 RSA_meth_get_bn_mod_exp(ossl_rsa_meth)) 435 || !RSA_meth_set_finish(capi_rsa_method, capi_rsa_free) 436 || !RSA_meth_set_sign(capi_rsa_method, capi_rsa_sign)) { 437 goto memerr; 438 } 439 440 # ifndef OPENSSL_NO_DSA 441 /* Setup DSA Method */ 442 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0); 443 ossl_dsa_meth = DSA_OpenSSL(); 444 if ( !DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign) 445 || !DSA_meth_set_verify(capi_dsa_method, 446 DSA_meth_get_verify(ossl_dsa_meth)) 447 || !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free) 448 || !DSA_meth_set_mod_exp(capi_dsa_method, 449 DSA_meth_get_mod_exp(ossl_dsa_meth)) 450 || !DSA_meth_set_bn_mod_exp(capi_dsa_method, 451 DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) { 452 goto memerr; 453 } 454 # endif 455 } 456 457 ctx = capi_ctx_new(); 458 if (ctx == NULL) 459 goto memerr; 460 461 ENGINE_set_ex_data(e, capi_idx, ctx); 462 463 # ifdef OPENSSL_CAPIENG_DIALOG 464 { 465 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL")); 466 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL")); 467 if (cryptui) 468 ctx->certselectdlg = 469 (CERTDLG) GetProcAddress(cryptui, 470 "CryptUIDlgSelectCertificateFromStore"); 471 if (kernel) 472 ctx->getconswindow = 473 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow"); 474 if (cryptui && !OPENSSL_isservice()) 475 ctx->client_cert_select = cert_select_dialog; 476 } 477 # endif 478 479 /* See if there is RSA+AES CSP */ 480 if (CryptAcquireContextW(&hprov, NULL, rsa_aes_cspname, PROV_RSA_AES, 481 CRYPT_VERIFYCONTEXT)) { 482 use_aes_csp = 1; 483 CryptReleaseContext(hprov, 0); 484 } 485 486 return 1; 487 488 memerr: 489 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE); 490 return 0; 491 492 return 1; 493 } 494 495 static int capi_destroy(ENGINE *e) 496 { 497 RSA_meth_free(capi_rsa_method); 498 capi_rsa_method = NULL; 499 # ifndef OPENSSL_NO_DSA 500 DSA_meth_free(capi_dsa_method); 501 capi_dsa_method = NULL; 502 # endif 503 ERR_unload_CAPI_strings(); 504 return 1; 505 } 506 507 static int capi_finish(ENGINE *e) 508 { 509 CAPI_CTX *ctx; 510 ctx = ENGINE_get_ex_data(e, capi_idx); 511 capi_ctx_free(ctx); 512 ENGINE_set_ex_data(e, capi_idx, NULL); 513 return 1; 514 } 515 516 /* 517 * CryptoAPI key application data. This contains a handle to the private key 518 * container (for sign operations) and a handle to the key (for decrypt 519 * operations). 520 */ 521 522 struct CAPI_KEY_st { 523 /* Associated certificate context (if any) */ 524 PCCERT_CONTEXT pcert; 525 HCRYPTPROV hprov; 526 HCRYPTKEY key; 527 DWORD keyspec; 528 }; 529 530 static int bind_capi(ENGINE *e) 531 { 532 capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0); 533 if (capi_rsa_method == NULL) 534 return 0; 535 # ifndef OPENSSL_NO_DSA 536 capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0); 537 if (capi_dsa_method == NULL) 538 goto memerr; 539 # endif 540 if (!ENGINE_set_id(e, engine_capi_id) 541 || !ENGINE_set_name(e, engine_capi_name) 542 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL) 543 || !ENGINE_set_init_function(e, capi_init) 544 || !ENGINE_set_finish_function(e, capi_finish) 545 || !ENGINE_set_destroy_function(e, capi_destroy) 546 || !ENGINE_set_RSA(e, capi_rsa_method) 547 # ifndef OPENSSL_NO_DSA 548 || !ENGINE_set_DSA(e, capi_dsa_method) 549 # endif 550 || !ENGINE_set_load_privkey_function(e, capi_load_privkey) 551 || !ENGINE_set_load_ssl_client_cert_function(e, 552 capi_load_ssl_client_cert) 553 || !ENGINE_set_cmd_defns(e, capi_cmd_defns) 554 || !ENGINE_set_ctrl_function(e, capi_ctrl)) 555 goto memerr; 556 ERR_load_CAPI_strings(); 557 558 return 1; 559 memerr: 560 RSA_meth_free(capi_rsa_method); 561 capi_rsa_method = NULL; 562 # ifndef OPENSSL_NO_DSA 563 DSA_meth_free(capi_dsa_method); 564 capi_dsa_method = NULL; 565 # endif 566 return 0; 567 } 568 569 # ifndef OPENSSL_NO_DYNAMIC_ENGINE 570 static int bind_helper(ENGINE *e, const char *id) 571 { 572 if (id && (strcmp(id, engine_capi_id) != 0)) 573 return 0; 574 if (!bind_capi(e)) 575 return 0; 576 return 1; 577 } 578 579 IMPLEMENT_DYNAMIC_CHECK_FN() 580 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper) 581 # else 582 static ENGINE *engine_capi(void) 583 { 584 ENGINE *ret = ENGINE_new(); 585 if (ret == NULL) 586 return NULL; 587 if (!bind_capi(ret)) { 588 ENGINE_free(ret); 589 return NULL; 590 } 591 return ret; 592 } 593 594 void engine_load_capi_int(void) 595 { 596 /* Copied from eng_[openssl|dyn].c */ 597 ENGINE *toadd = engine_capi(); 598 if (!toadd) 599 return; 600 ENGINE_add(toadd); 601 ENGINE_free(toadd); 602 ERR_clear_error(); 603 } 604 # endif 605 606 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen) 607 { 608 int i; 609 /* 610 * Reverse buffer in place: since this is a keyblob structure that will 611 * be freed up after conversion anyway it doesn't matter if we change 612 * it. 613 */ 614 for (i = 0; i < binlen / 2; i++) { 615 unsigned char c; 616 c = bin[i]; 617 bin[i] = bin[binlen - i - 1]; 618 bin[binlen - i - 1] = c; 619 } 620 621 if (!BN_bin2bn(bin, binlen, bn)) 622 return 0; 623 return 1; 624 } 625 626 /* Given a CAPI_KEY get an EVP_PKEY structure */ 627 628 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key) 629 { 630 unsigned char *pubkey = NULL; 631 DWORD len; 632 BLOBHEADER *bh; 633 RSA *rkey = NULL; 634 DSA *dkey = NULL; 635 EVP_PKEY *ret = NULL; 636 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) { 637 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR); 638 capi_addlasterror(); 639 return NULL; 640 } 641 642 pubkey = OPENSSL_malloc(len); 643 644 if (pubkey == NULL) 645 goto memerr; 646 647 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) { 648 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR); 649 capi_addlasterror(); 650 goto err; 651 } 652 653 bh = (BLOBHEADER *) pubkey; 654 if (bh->bType != PUBLICKEYBLOB) { 655 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB); 656 goto err; 657 } 658 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) { 659 RSAPUBKEY *rp; 660 DWORD rsa_modlen; 661 BIGNUM *e = NULL, *n = NULL; 662 unsigned char *rsa_modulus; 663 rp = (RSAPUBKEY *) (bh + 1); 664 if (rp->magic != 0x31415352) { 665 char magstr[10]; 666 BIO_snprintf(magstr, 10, "%lx", rp->magic); 667 CAPIerr(CAPI_F_CAPI_GET_PKEY, 668 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER); 669 ERR_add_error_data(2, "magic=0x", magstr); 670 goto err; 671 } 672 rsa_modulus = (unsigned char *)(rp + 1); 673 rkey = RSA_new_method(eng); 674 if (!rkey) 675 goto memerr; 676 677 e = BN_new(); 678 n = BN_new(); 679 680 if (e == NULL || n == NULL) { 681 BN_free(e); 682 BN_free(n); 683 goto memerr; 684 } 685 686 RSA_set0_key(rkey, n, e, NULL); 687 688 if (!BN_set_word(e, rp->pubexp)) 689 goto memerr; 690 691 rsa_modlen = rp->bitlen / 8; 692 if (!lend_tobn(n, rsa_modulus, rsa_modlen)) 693 goto memerr; 694 695 RSA_set_ex_data(rkey, rsa_capi_idx, key); 696 697 if ((ret = EVP_PKEY_new()) == NULL) 698 goto memerr; 699 700 EVP_PKEY_assign_RSA(ret, rkey); 701 rkey = NULL; 702 703 # ifndef OPENSSL_NO_DSA 704 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) { 705 DSSPUBKEY *dp; 706 DWORD dsa_plen; 707 unsigned char *btmp; 708 BIGNUM *p, *q, *g, *pub_key; 709 dp = (DSSPUBKEY *) (bh + 1); 710 if (dp->magic != 0x31535344) { 711 char magstr[10]; 712 BIO_snprintf(magstr, 10, "%lx", dp->magic); 713 CAPIerr(CAPI_F_CAPI_GET_PKEY, 714 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER); 715 ERR_add_error_data(2, "magic=0x", magstr); 716 goto err; 717 } 718 dsa_plen = dp->bitlen / 8; 719 btmp = (unsigned char *)(dp + 1); 720 dkey = DSA_new_method(eng); 721 if (!dkey) 722 goto memerr; 723 p = BN_new(); 724 q = BN_new(); 725 g = BN_new(); 726 pub_key = BN_new(); 727 if (p == NULL || q == NULL || g == NULL || pub_key == NULL) { 728 BN_free(p); 729 BN_free(q); 730 BN_free(g); 731 BN_free(pub_key); 732 goto memerr; 733 } 734 DSA_set0_pqg(dkey, p, q, g); 735 DSA_set0_key(dkey, pub_key, NULL); 736 if (!lend_tobn(p, btmp, dsa_plen)) 737 goto memerr; 738 btmp += dsa_plen; 739 if (!lend_tobn(q, btmp, 20)) 740 goto memerr; 741 btmp += 20; 742 if (!lend_tobn(g, btmp, dsa_plen)) 743 goto memerr; 744 btmp += dsa_plen; 745 if (!lend_tobn(pub_key, btmp, dsa_plen)) 746 goto memerr; 747 btmp += dsa_plen; 748 749 DSA_set_ex_data(dkey, dsa_capi_idx, key); 750 751 if ((ret = EVP_PKEY_new()) == NULL) 752 goto memerr; 753 754 EVP_PKEY_assign_DSA(ret, dkey); 755 dkey = NULL; 756 # endif 757 } else { 758 char algstr[10]; 759 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg); 760 CAPIerr(CAPI_F_CAPI_GET_PKEY, 761 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM); 762 ERR_add_error_data(2, "aiKeyAlg=0x", algstr); 763 goto err; 764 } 765 766 err: 767 OPENSSL_free(pubkey); 768 if (!ret) { 769 RSA_free(rkey); 770 # ifndef OPENSSL_NO_DSA 771 DSA_free(dkey); 772 # endif 773 } 774 775 return ret; 776 777 memerr: 778 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE); 779 goto err; 780 781 } 782 783 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id, 784 UI_METHOD *ui_method, void *callback_data) 785 { 786 CAPI_CTX *ctx; 787 CAPI_KEY *key; 788 EVP_PKEY *ret; 789 ctx = ENGINE_get_ex_data(eng, capi_idx); 790 791 if (!ctx) { 792 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT); 793 return NULL; 794 } 795 796 key = capi_find_key(ctx, key_id); 797 798 if (!key) 799 return NULL; 800 801 ret = capi_get_pkey(eng, key); 802 803 if (!ret) 804 capi_free_key(key); 805 return ret; 806 807 } 808 809 /* CryptoAPI RSA operations */ 810 811 int capi_rsa_priv_enc(int flen, const unsigned char *from, 812 unsigned char *to, RSA *rsa, int padding) 813 { 814 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED); 815 return -1; 816 } 817 818 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len, 819 unsigned char *sigret, unsigned int *siglen, const RSA *rsa) 820 { 821 ALG_ID alg; 822 HCRYPTHASH hash; 823 DWORD slen; 824 unsigned int i; 825 int ret = -1; 826 CAPI_KEY *capi_key; 827 CAPI_CTX *ctx; 828 829 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx); 830 831 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n"); 832 833 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); 834 if (!capi_key) { 835 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY); 836 return -1; 837 } 838 /* Convert the signature type to a CryptoAPI algorithm ID */ 839 switch (dtype) { 840 case NID_sha256: 841 alg = CALG_SHA_256; 842 break; 843 844 case NID_sha384: 845 alg = CALG_SHA_384; 846 break; 847 848 case NID_sha512: 849 alg = CALG_SHA_512; 850 break; 851 852 case NID_sha1: 853 alg = CALG_SHA1; 854 break; 855 856 case NID_md5: 857 alg = CALG_MD5; 858 break; 859 860 case NID_md5_sha1: 861 alg = CALG_SSL3_SHAMD5; 862 break; 863 default: 864 { 865 char algstr[10]; 866 BIO_snprintf(algstr, 10, "%x", dtype); 867 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID); 868 ERR_add_error_data(2, "NID=0x", algstr); 869 return -1; 870 } 871 } 872 873 /* Create the hash object */ 874 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) { 875 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT); 876 capi_addlasterror(); 877 return -1; 878 } 879 /* Set the hash value to the value passed */ 880 881 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) { 882 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE); 883 capi_addlasterror(); 884 goto err; 885 } 886 887 /* Finally sign it */ 888 slen = RSA_size(rsa); 889 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) { 890 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH); 891 capi_addlasterror(); 892 goto err; 893 } else { 894 ret = 1; 895 /* Inplace byte reversal of signature */ 896 for (i = 0; i < slen / 2; i++) { 897 unsigned char c; 898 c = sigret[i]; 899 sigret[i] = sigret[slen - i - 1]; 900 sigret[slen - i - 1] = c; 901 } 902 *siglen = slen; 903 } 904 905 /* Now cleanup */ 906 907 err: 908 CryptDestroyHash(hash); 909 910 return ret; 911 } 912 913 int capi_rsa_priv_dec(int flen, const unsigned char *from, 914 unsigned char *to, RSA *rsa, int padding) 915 { 916 int i; 917 unsigned char *tmpbuf; 918 CAPI_KEY *capi_key; 919 CAPI_CTX *ctx; 920 DWORD flags = 0; 921 DWORD dlen; 922 923 if (flen <= 0) 924 return flen; 925 926 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx); 927 928 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n"); 929 930 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); 931 if (!capi_key) { 932 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY); 933 return -1; 934 } 935 936 switch (padding) { 937 case RSA_PKCS1_PADDING: 938 /* Nothing to do */ 939 break; 940 #ifdef CRYPT_DECRYPT_RSA_NO_PADDING_CHECK 941 case RSA_NO_PADDING: 942 flags = CRYPT_DECRYPT_RSA_NO_PADDING_CHECK; 943 break; 944 #endif 945 default: 946 { 947 char errstr[10]; 948 BIO_snprintf(errstr, 10, "%d", padding); 949 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING); 950 ERR_add_error_data(2, "padding=", errstr); 951 return -1; 952 } 953 } 954 955 /* Create temp reverse order version of input */ 956 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) { 957 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE); 958 return -1; 959 } 960 for (i = 0; i < flen; i++) 961 tmpbuf[flen - i - 1] = from[i]; 962 963 /* Finally decrypt it */ 964 dlen = flen; 965 if (!CryptDecrypt(capi_key->key, 0, TRUE, flags, tmpbuf, &dlen)) { 966 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR); 967 capi_addlasterror(); 968 OPENSSL_cleanse(tmpbuf, dlen); 969 OPENSSL_free(tmpbuf); 970 return -1; 971 } else { 972 memcpy(to, tmpbuf, (flen = (int)dlen)); 973 } 974 OPENSSL_cleanse(tmpbuf, flen); 975 OPENSSL_free(tmpbuf); 976 977 return flen; 978 } 979 980 static int capi_rsa_free(RSA *rsa) 981 { 982 CAPI_KEY *capi_key; 983 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); 984 capi_free_key(capi_key); 985 RSA_set_ex_data(rsa, rsa_capi_idx, 0); 986 return 1; 987 } 988 989 # ifndef OPENSSL_NO_DSA 990 /* CryptoAPI DSA operations */ 991 992 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen, 993 DSA *dsa) 994 { 995 HCRYPTHASH hash; 996 DWORD slen; 997 DSA_SIG *ret = NULL; 998 CAPI_KEY *capi_key; 999 CAPI_CTX *ctx; 1000 unsigned char csigbuf[40]; 1001 1002 ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx); 1003 1004 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n"); 1005 1006 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx); 1007 1008 if (!capi_key) { 1009 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY); 1010 return NULL; 1011 } 1012 1013 if (dlen != 20) { 1014 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH); 1015 return NULL; 1016 } 1017 1018 /* Create the hash object */ 1019 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) { 1020 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT); 1021 capi_addlasterror(); 1022 return NULL; 1023 } 1024 1025 /* Set the hash value to the value passed */ 1026 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) { 1027 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE); 1028 capi_addlasterror(); 1029 goto err; 1030 } 1031 1032 /* Finally sign it */ 1033 slen = sizeof(csigbuf); 1034 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) { 1035 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH); 1036 capi_addlasterror(); 1037 goto err; 1038 } else { 1039 BIGNUM *r = BN_new(), *s = BN_new(); 1040 1041 if (r == NULL || s == NULL 1042 || !lend_tobn(r, csigbuf, 20) 1043 || !lend_tobn(s, csigbuf + 20, 20) 1044 || (ret = DSA_SIG_new()) == NULL) { 1045 BN_free(r); /* BN_free checks for BIGNUM * being NULL */ 1046 BN_free(s); 1047 goto err; 1048 } 1049 DSA_SIG_set0(ret, r, s); 1050 } 1051 1052 /* Now cleanup */ 1053 1054 err: 1055 OPENSSL_cleanse(csigbuf, 40); 1056 CryptDestroyHash(hash); 1057 return ret; 1058 } 1059 1060 static int capi_dsa_free(DSA *dsa) 1061 { 1062 CAPI_KEY *capi_key; 1063 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx); 1064 capi_free_key(capi_key); 1065 DSA_set_ex_data(dsa, dsa_capi_idx, 0); 1066 return 1; 1067 } 1068 # endif 1069 1070 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, 1071 va_list argptr) 1072 { 1073 BIO *out; 1074 1075 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file)) 1076 return; 1077 out = BIO_new_file(ctx->debug_file, "a+"); 1078 if (out == NULL) { 1079 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR); 1080 return; 1081 } 1082 BIO_vprintf(out, format, argptr); 1083 BIO_free(out); 1084 } 1085 1086 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...) 1087 { 1088 va_list args; 1089 va_start(args, format); 1090 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args); 1091 va_end(args); 1092 } 1093 1094 static void capi_addlasterror(void) 1095 { 1096 capi_adderror(GetLastError()); 1097 } 1098 1099 static void capi_adderror(DWORD err) 1100 { 1101 char errstr[10]; 1102 BIO_snprintf(errstr, 10, "%lX", err); 1103 ERR_add_error_data(2, "Error code= 0x", errstr); 1104 } 1105 1106 static char *wide_to_asc(LPCWSTR wstr) 1107 { 1108 char *str; 1109 int len_0, sz; 1110 1111 if (!wstr) 1112 return NULL; 1113 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */ 1114 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL); 1115 if (!sz) { 1116 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR); 1117 return NULL; 1118 } 1119 str = OPENSSL_malloc(sz); 1120 if (str == NULL) { 1121 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE); 1122 return NULL; 1123 } 1124 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) { 1125 OPENSSL_free(str); 1126 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR); 1127 return NULL; 1128 } 1129 return str; 1130 } 1131 1132 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, 1133 DWORD idx) 1134 { 1135 DWORD len, err; 1136 LPTSTR name; 1137 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx); 1138 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) { 1139 err = GetLastError(); 1140 if (err == ERROR_NO_MORE_ITEMS) 1141 return 2; 1142 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR); 1143 capi_adderror(err); 1144 return 0; 1145 } 1146 name = OPENSSL_malloc(len); 1147 if (name == NULL) { 1148 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE); 1149 return 0; 1150 } 1151 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) { 1152 err = GetLastError(); 1153 OPENSSL_free(name); 1154 if (err == ERROR_NO_MORE_ITEMS) 1155 return 2; 1156 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR); 1157 capi_adderror(err); 1158 return 0; 1159 } 1160 if (sizeof(TCHAR) != sizeof(char)) { 1161 *pname = wide_to_asc((WCHAR *)name); 1162 OPENSSL_free(name); 1163 if (*pname == NULL) 1164 return 0; 1165 } else { 1166 *pname = (char *)name; 1167 } 1168 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname, 1169 *ptype); 1170 1171 return 1; 1172 } 1173 1174 static int capi_list_providers(CAPI_CTX *ctx, BIO *out) 1175 { 1176 DWORD idx, ptype; 1177 int ret; 1178 LPSTR provname = NULL; 1179 CAPI_trace(ctx, "capi_list_providers\n"); 1180 BIO_printf(out, "Available CSPs:\n"); 1181 for (idx = 0;; idx++) { 1182 ret = capi_get_provname(ctx, &provname, &ptype, idx); 1183 if (ret == 2) 1184 break; 1185 if (ret == 0) 1186 break; 1187 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype); 1188 OPENSSL_free(provname); 1189 } 1190 return 1; 1191 } 1192 1193 static int capi_list_containers(CAPI_CTX *ctx, BIO *out) 1194 { 1195 int ret = 1; 1196 HCRYPTPROV hprov; 1197 DWORD err, idx, flags, buflen = 0, clen; 1198 LPSTR cname; 1199 LPWSTR cspname = NULL; 1200 1201 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, 1202 ctx->csptype); 1203 if (ctx->cspname != NULL) { 1204 if ((clen = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, 1205 NULL, 0))) { 1206 cspname = alloca(clen * sizeof(WCHAR)); 1207 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname, 1208 clen); 1209 } 1210 if (cspname == NULL) { 1211 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE); 1212 capi_addlasterror(); 1213 return 0; 1214 } 1215 } 1216 if (!CryptAcquireContextW(&hprov, NULL, cspname, ctx->csptype, 1217 CRYPT_VERIFYCONTEXT)) { 1218 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, 1219 CAPI_R_CRYPTACQUIRECONTEXT_ERROR); 1220 capi_addlasterror(); 1221 return 0; 1222 } 1223 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, 1224 CRYPT_FIRST)) { 1225 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR); 1226 capi_addlasterror(); 1227 CryptReleaseContext(hprov, 0); 1228 return 0; 1229 } 1230 CAPI_trace(ctx, "Got max container len %d\n", buflen); 1231 if (buflen == 0) 1232 buflen = 1024; 1233 cname = OPENSSL_malloc(buflen); 1234 if (cname == NULL) { 1235 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE); 1236 goto err; 1237 } 1238 1239 for (idx = 0;; idx++) { 1240 clen = buflen; 1241 cname[0] = 0; 1242 1243 if (idx == 0) 1244 flags = CRYPT_FIRST; 1245 else 1246 flags = 0; 1247 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, (BYTE *)cname, 1248 &clen, flags)) { 1249 err = GetLastError(); 1250 if (err == ERROR_NO_MORE_ITEMS) 1251 goto done; 1252 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR); 1253 capi_adderror(err); 1254 goto err; 1255 } 1256 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", 1257 cname, clen, idx, flags); 1258 if (!cname[0] && (clen == buflen)) { 1259 CAPI_trace(ctx, "Enumerate bug: using workaround\n"); 1260 goto done; 1261 } 1262 BIO_printf(out, "%lu. %s\n", idx, cname); 1263 } 1264 err: 1265 1266 ret = 0; 1267 1268 done: 1269 OPENSSL_free(cname); 1270 CryptReleaseContext(hprov, 0); 1271 1272 return ret; 1273 } 1274 1275 static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, 1276 PCCERT_CONTEXT cert) 1277 { 1278 DWORD len; 1279 CRYPT_KEY_PROV_INFO *pinfo; 1280 1281 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, 1282 NULL, &len)) 1283 return NULL; 1284 pinfo = OPENSSL_malloc(len); 1285 if (pinfo == NULL) { 1286 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE); 1287 return NULL; 1288 } 1289 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, 1290 pinfo, &len)) { 1291 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, 1292 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO); 1293 capi_addlasterror(); 1294 OPENSSL_free(pinfo); 1295 return NULL; 1296 } 1297 return pinfo; 1298 } 1299 1300 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, 1301 CRYPT_KEY_PROV_INFO *pinfo) 1302 { 1303 char *provname = NULL, *contname = NULL; 1304 if (!pinfo) { 1305 BIO_printf(out, " No Private Key\n"); 1306 return; 1307 } 1308 provname = wide_to_asc(pinfo->pwszProvName); 1309 contname = wide_to_asc(pinfo->pwszContainerName); 1310 if (!provname || !contname) 1311 goto err; 1312 1313 BIO_printf(out, " Private Key Info:\n"); 1314 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname, 1315 pinfo->dwProvType); 1316 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname, 1317 pinfo->dwKeySpec); 1318 err: 1319 OPENSSL_free(provname); 1320 OPENSSL_free(contname); 1321 } 1322 1323 static char *capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert) 1324 { 1325 LPWSTR wfname; 1326 DWORD dlen; 1327 1328 CAPI_trace(ctx, "capi_cert_get_fname\n"); 1329 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, 1330 NULL, &dlen)) 1331 return NULL; 1332 wfname = OPENSSL_malloc(dlen); 1333 if (wfname == NULL) 1334 return NULL; 1335 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, 1336 wfname, &dlen)) { 1337 char *fname = wide_to_asc(wfname); 1338 OPENSSL_free(wfname); 1339 return fname; 1340 } 1341 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME); 1342 capi_addlasterror(); 1343 1344 OPENSSL_free(wfname); 1345 return NULL; 1346 } 1347 1348 static void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert) 1349 { 1350 X509 *x; 1351 const unsigned char *p; 1352 unsigned long flags = ctx->dump_flags; 1353 if (flags & CAPI_DMP_FNAME) { 1354 char *fname; 1355 fname = capi_cert_get_fname(ctx, cert); 1356 if (fname) { 1357 BIO_printf(out, " Friendly Name \"%s\"\n", fname); 1358 OPENSSL_free(fname); 1359 } else { 1360 BIO_printf(out, " <No Friendly Name>\n"); 1361 } 1362 } 1363 1364 p = cert->pbCertEncoded; 1365 x = d2i_X509(NULL, &p, cert->cbCertEncoded); 1366 if (!x) 1367 BIO_printf(out, " <Can't parse certificate>\n"); 1368 if (flags & CAPI_DMP_SUMMARY) { 1369 BIO_printf(out, " Subject: "); 1370 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE); 1371 BIO_printf(out, "\n Issuer: "); 1372 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE); 1373 BIO_printf(out, "\n"); 1374 } 1375 if (flags & CAPI_DMP_FULL) 1376 X509_print_ex(out, x, XN_FLAG_ONELINE, 0); 1377 1378 if (flags & CAPI_DMP_PKEYINFO) { 1379 CRYPT_KEY_PROV_INFO *pinfo; 1380 pinfo = capi_get_prov_info(ctx, cert); 1381 capi_dump_prov_info(ctx, out, pinfo); 1382 OPENSSL_free(pinfo); 1383 } 1384 1385 if (flags & CAPI_DMP_PEM) 1386 PEM_write_bio_X509(out, x); 1387 X509_free(x); 1388 } 1389 1390 static HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename) 1391 { 1392 HCERTSTORE hstore; 1393 1394 if (!storename) 1395 storename = ctx->storename; 1396 if (!storename) 1397 storename = "MY"; 1398 CAPI_trace(ctx, "Opening certificate store %s\n", storename); 1399 1400 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0, 1401 ctx->store_flags, storename); 1402 if (!hstore) { 1403 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE); 1404 capi_addlasterror(); 1405 } 1406 return hstore; 1407 } 1408 1409 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id) 1410 { 1411 char *storename; 1412 int idx; 1413 int ret = 1; 1414 HCERTSTORE hstore; 1415 PCCERT_CONTEXT cert = NULL; 1416 1417 storename = ctx->storename; 1418 if (!storename) 1419 storename = "MY"; 1420 CAPI_trace(ctx, "Listing certs for store %s\n", storename); 1421 1422 hstore = capi_open_store(ctx, storename); 1423 if (!hstore) 1424 return 0; 1425 if (id) { 1426 cert = capi_find_cert(ctx, id, hstore); 1427 if (!cert) { 1428 ret = 0; 1429 goto err; 1430 } 1431 capi_dump_cert(ctx, out, cert); 1432 CertFreeCertificateContext(cert); 1433 } else { 1434 for (idx = 0;; idx++) { 1435 cert = CertEnumCertificatesInStore(hstore, cert); 1436 if (!cert) 1437 break; 1438 BIO_printf(out, "Certificate %d\n", idx); 1439 capi_dump_cert(ctx, out, cert); 1440 } 1441 } 1442 err: 1443 CertCloseStore(hstore, 0); 1444 return ret; 1445 } 1446 1447 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, 1448 HCERTSTORE hstore) 1449 { 1450 PCCERT_CONTEXT cert = NULL; 1451 char *fname = NULL; 1452 int match; 1453 switch (ctx->lookup_method) { 1454 case CAPI_LU_SUBSTR: 1455 return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0, 1456 CERT_FIND_SUBJECT_STR_A, id, NULL); 1457 case CAPI_LU_FNAME: 1458 for (;;) { 1459 cert = CertEnumCertificatesInStore(hstore, cert); 1460 if (!cert) 1461 return NULL; 1462 fname = capi_cert_get_fname(ctx, cert); 1463 if (fname) { 1464 if (strcmp(fname, id)) 1465 match = 0; 1466 else 1467 match = 1; 1468 OPENSSL_free(fname); 1469 if (match) 1470 return cert; 1471 } 1472 } 1473 default: 1474 return NULL; 1475 } 1476 } 1477 1478 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const WCHAR *contname, 1479 const WCHAR *provname, DWORD ptype, 1480 DWORD keyspec) 1481 { 1482 DWORD dwFlags = 0; 1483 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key)); 1484 1485 if (key == NULL) 1486 return NULL; 1487 /* If PROV_RSA_AES supported use it instead */ 1488 if (ptype == PROV_RSA_FULL && use_aes_csp && 1489 wcscmp(provname, rsa_enh_cspname) == 0) { 1490 provname = rsa_aes_cspname; 1491 ptype = PROV_RSA_AES; 1492 } 1493 if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) { 1494 /* 1495 * above 'if' is [complementary] copy from CAPI_trace and serves 1496 * as optimization to minimize [below] malloc-ations 1497 */ 1498 char *_contname = wide_to_asc(contname); 1499 char *_provname = wide_to_asc(provname); 1500 1501 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n", 1502 _contname, _provname, ptype); 1503 OPENSSL_free(_provname); 1504 OPENSSL_free(_contname); 1505 } 1506 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE) 1507 dwFlags = CRYPT_MACHINE_KEYSET; 1508 if (!CryptAcquireContextW(&key->hprov, contname, provname, ptype, 1509 dwFlags)) { 1510 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR); 1511 capi_addlasterror(); 1512 goto err; 1513 } 1514 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) { 1515 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR); 1516 capi_addlasterror(); 1517 CryptReleaseContext(key->hprov, 0); 1518 goto err; 1519 } 1520 key->keyspec = keyspec; 1521 key->pcert = NULL; 1522 return key; 1523 1524 err: 1525 OPENSSL_free(key); 1526 return NULL; 1527 } 1528 1529 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert) 1530 { 1531 CAPI_KEY *key = NULL; 1532 CRYPT_KEY_PROV_INFO *pinfo = NULL; 1533 1534 pinfo = capi_get_prov_info(ctx, cert); 1535 1536 if (pinfo != NULL) 1537 key = capi_get_key(ctx, pinfo->pwszContainerName, pinfo->pwszProvName, 1538 pinfo->dwProvType, pinfo->dwKeySpec); 1539 1540 OPENSSL_free(pinfo); 1541 return key; 1542 } 1543 1544 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id) 1545 { 1546 PCCERT_CONTEXT cert; 1547 HCERTSTORE hstore; 1548 CAPI_KEY *key = NULL; 1549 1550 switch (ctx->lookup_method) { 1551 case CAPI_LU_SUBSTR: 1552 case CAPI_LU_FNAME: 1553 hstore = capi_open_store(ctx, NULL); 1554 if (!hstore) 1555 return NULL; 1556 cert = capi_find_cert(ctx, id, hstore); 1557 if (cert) { 1558 key = capi_get_cert_key(ctx, cert); 1559 CertFreeCertificateContext(cert); 1560 } 1561 CertCloseStore(hstore, 0); 1562 break; 1563 1564 case CAPI_LU_CONTNAME: 1565 { 1566 WCHAR *contname, *provname; 1567 DWORD len; 1568 1569 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) && 1570 (contname = alloca(len * sizeof(WCHAR)), 1571 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) && 1572 (len = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, 1573 NULL, 0)) && 1574 (provname = alloca(len * sizeof(WCHAR)), 1575 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, 1576 provname, len))) 1577 key = capi_get_key(ctx, contname, provname, 1578 ctx->csptype, ctx->keytype); 1579 } 1580 break; 1581 } 1582 1583 return key; 1584 } 1585 1586 void capi_free_key(CAPI_KEY *key) 1587 { 1588 if (!key) 1589 return; 1590 CryptDestroyKey(key->key); 1591 CryptReleaseContext(key->hprov, 0); 1592 if (key->pcert) 1593 CertFreeCertificateContext(key->pcert); 1594 OPENSSL_free(key); 1595 } 1596 1597 /* Initialize a CAPI_CTX structure */ 1598 1599 static CAPI_CTX *capi_ctx_new(void) 1600 { 1601 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); 1602 1603 if (ctx == NULL) { 1604 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE); 1605 return NULL; 1606 } 1607 ctx->csptype = PROV_RSA_FULL; 1608 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME; 1609 ctx->keytype = AT_KEYEXCHANGE; 1610 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG | 1611 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER; 1612 ctx->lookup_method = CAPI_LU_SUBSTR; 1613 ctx->client_cert_select = cert_select_simple; 1614 return ctx; 1615 } 1616 1617 static void capi_ctx_free(CAPI_CTX *ctx) 1618 { 1619 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx); 1620 if (!ctx) 1621 return; 1622 OPENSSL_free(ctx->cspname); 1623 OPENSSL_free(ctx->debug_file); 1624 OPENSSL_free(ctx->storename); 1625 OPENSSL_free(ctx->ssl_client_store); 1626 OPENSSL_free(ctx); 1627 } 1628 1629 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, 1630 int check) 1631 { 1632 LPSTR tmpcspname; 1633 1634 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type); 1635 if (check) { 1636 HCRYPTPROV hprov; 1637 LPWSTR name = NULL; 1638 DWORD len; 1639 1640 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) { 1641 name = alloca(len * sizeof(WCHAR)); 1642 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len); 1643 } 1644 if (name == NULL || !CryptAcquireContextW(&hprov, NULL, name, type, 1645 CRYPT_VERIFYCONTEXT)) { 1646 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, 1647 CAPI_R_CRYPTACQUIRECONTEXT_ERROR); 1648 capi_addlasterror(); 1649 return 0; 1650 } 1651 CryptReleaseContext(hprov, 0); 1652 } 1653 tmpcspname = OPENSSL_strdup(pname); 1654 if (tmpcspname == NULL) { 1655 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, ERR_R_MALLOC_FAILURE); 1656 return 0; 1657 } 1658 OPENSSL_free(ctx->cspname); 1659 ctx->cspname = tmpcspname; 1660 ctx->csptype = type; 1661 return 1; 1662 } 1663 1664 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx) 1665 { 1666 LPSTR pname; 1667 DWORD type; 1668 int res; 1669 if (capi_get_provname(ctx, &pname, &type, idx) != 1) 1670 return 0; 1671 res = capi_ctx_set_provname(ctx, pname, type, 0); 1672 OPENSSL_free(pname); 1673 return res; 1674 } 1675 1676 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x) 1677 { 1678 int i; 1679 X509_NAME *nm; 1680 /* Special case: empty list: match anything */ 1681 if (sk_X509_NAME_num(ca_dn) <= 0) 1682 return 1; 1683 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) { 1684 nm = sk_X509_NAME_value(ca_dn, i); 1685 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x))) 1686 return 1; 1687 } 1688 return 0; 1689 } 1690 1691 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl, 1692 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, 1693 EVP_PKEY **pkey, STACK_OF(X509) **pother, 1694 UI_METHOD *ui_method, 1695 void *callback_data) 1696 { 1697 STACK_OF(X509) *certs = NULL; 1698 X509 *x; 1699 char *storename; 1700 const unsigned char *p; 1701 int i, client_cert_idx; 1702 HCERTSTORE hstore; 1703 PCCERT_CONTEXT cert = NULL, excert = NULL; 1704 CAPI_CTX *ctx; 1705 CAPI_KEY *key; 1706 ctx = ENGINE_get_ex_data(e, capi_idx); 1707 1708 *pcert = NULL; 1709 *pkey = NULL; 1710 1711 storename = ctx->ssl_client_store; 1712 if (!storename) 1713 storename = "MY"; 1714 1715 hstore = capi_open_store(ctx, storename); 1716 if (!hstore) 1717 return 0; 1718 /* Enumerate all certificates collect any matches */ 1719 for (i = 0;; i++) { 1720 cert = CertEnumCertificatesInStore(hstore, cert); 1721 if (!cert) 1722 break; 1723 p = cert->pbCertEncoded; 1724 x = d2i_X509(NULL, &p, cert->cbCertEncoded); 1725 if (!x) { 1726 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i); 1727 continue; 1728 } 1729 if (cert_issuer_match(ca_dn, x) 1730 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) { 1731 key = capi_get_cert_key(ctx, cert); 1732 if (!key) { 1733 X509_free(x); 1734 continue; 1735 } 1736 /* 1737 * Match found: attach extra data to it so we can retrieve the 1738 * key later. 1739 */ 1740 excert = CertDuplicateCertificateContext(cert); 1741 key->pcert = excert; 1742 X509_set_ex_data(x, cert_capi_idx, key); 1743 1744 if (!certs) 1745 certs = sk_X509_new_null(); 1746 1747 sk_X509_push(certs, x); 1748 } else { 1749 X509_free(x); 1750 } 1751 } 1752 1753 if (cert) 1754 CertFreeCertificateContext(cert); 1755 if (hstore) 1756 CertCloseStore(hstore, 0); 1757 1758 if (!certs) 1759 return 0; 1760 1761 /* Select the appropriate certificate */ 1762 1763 client_cert_idx = ctx->client_cert_select(e, ssl, certs); 1764 1765 /* Set the selected certificate and free the rest */ 1766 1767 for (i = 0; i < sk_X509_num(certs); i++) { 1768 x = sk_X509_value(certs, i); 1769 if (i == client_cert_idx) 1770 *pcert = x; 1771 else { 1772 key = X509_get_ex_data(x, cert_capi_idx); 1773 capi_free_key(key); 1774 X509_free(x); 1775 } 1776 } 1777 1778 sk_X509_free(certs); 1779 1780 if (!*pcert) 1781 return 0; 1782 1783 /* Setup key for selected certificate */ 1784 1785 key = X509_get_ex_data(*pcert, cert_capi_idx); 1786 *pkey = capi_get_pkey(e, key); 1787 X509_set_ex_data(*pcert, cert_capi_idx, NULL); 1788 1789 return 1; 1790 1791 } 1792 1793 /* Simple client cert selection function: always select first */ 1794 1795 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs) 1796 { 1797 return 0; 1798 } 1799 1800 # ifdef OPENSSL_CAPIENG_DIALOG 1801 1802 /* 1803 * More complex cert selection function, using standard function 1804 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box. 1805 */ 1806 1807 /* 1808 * Definitions which are in cryptuiapi.h but this is not present in older 1809 * versions of headers. 1810 */ 1811 1812 # ifndef CRYPTUI_SELECT_LOCATION_COLUMN 1813 # define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010 1814 # define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004 1815 # endif 1816 1817 # define dlg_title L"OpenSSL Application SSL Client Certificate Selection" 1818 # define dlg_prompt L"Select a certificate to use for authentication" 1819 # define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \ 1820 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN 1821 1822 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs) 1823 { 1824 X509 *x; 1825 HCERTSTORE dstore; 1826 PCCERT_CONTEXT cert; 1827 CAPI_CTX *ctx; 1828 CAPI_KEY *key; 1829 HWND hwnd; 1830 int i, idx = -1; 1831 if (sk_X509_num(certs) == 1) 1832 return 0; 1833 ctx = ENGINE_get_ex_data(e, capi_idx); 1834 /* Create an in memory store of certificates */ 1835 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0, 1836 CERT_STORE_CREATE_NEW_FLAG, NULL); 1837 if (!dstore) { 1838 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE); 1839 capi_addlasterror(); 1840 goto err; 1841 } 1842 /* Add all certificates to store */ 1843 for (i = 0; i < sk_X509_num(certs); i++) { 1844 x = sk_X509_value(certs, i); 1845 key = X509_get_ex_data(x, cert_capi_idx); 1846 1847 if (!CertAddCertificateContextToStore(dstore, key->pcert, 1848 CERT_STORE_ADD_NEW, NULL)) { 1849 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT); 1850 capi_addlasterror(); 1851 goto err; 1852 } 1853 1854 } 1855 hwnd = GetForegroundWindow(); 1856 if (!hwnd) 1857 hwnd = GetActiveWindow(); 1858 if (!hwnd && ctx->getconswindow) 1859 hwnd = ctx->getconswindow(); 1860 /* Call dialog to select one */ 1861 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt, 1862 dlg_columns, 0, NULL); 1863 1864 /* Find matching cert from list */ 1865 if (cert) { 1866 for (i = 0; i < sk_X509_num(certs); i++) { 1867 x = sk_X509_value(certs, i); 1868 key = X509_get_ex_data(x, cert_capi_idx); 1869 if (CertCompareCertificate 1870 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo, 1871 key->pcert->pCertInfo)) { 1872 idx = i; 1873 break; 1874 } 1875 } 1876 } 1877 1878 err: 1879 if (dstore) 1880 CertCloseStore(dstore, 0); 1881 return idx; 1882 1883 } 1884 # endif 1885 1886 #else /* !__COMPILE_CAPIENG */ 1887 # include <openssl/engine.h> 1888 # ifndef OPENSSL_NO_DYNAMIC_ENGINE 1889 OPENSSL_EXPORT 1890 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); 1891 OPENSSL_EXPORT 1892 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) 1893 { 1894 return 0; 1895 } 1896 1897 IMPLEMENT_DYNAMIC_CHECK_FN() 1898 # else 1899 void engine_load_capi_int(void); 1900 void engine_load_capi_int(void) 1901 { 1902 } 1903 # endif 1904 #endif 1905