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[thirdparty/openssl.git] / engines / e_capi.c
1 /* engines/e_capi.c */
2 /*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4 * project.
5 */
6 /* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 */
54
55 #include <stdio.h>
56 #include <string.h>
57 #include <stdlib.h>
58
59 #include <openssl/crypto.h>
60
61 #ifdef OPENSSL_SYS_WIN32
62 # ifndef OPENSSL_NO_CAPIENG
63
64 # include <openssl/buffer.h>
65 # include <openssl/bn.h>
66 # include <openssl/rsa.h>
67 # include <openssl/dsa.h>
68
69 # ifndef _WIN32_WINNT
70 # define _WIN32_WINNT 0x0400
71 # endif
72
73 # include <windows.h>
74 # include <wincrypt.h>
75 # include <malloc.h>
76 # ifndef alloca
77 # define alloca _alloca
78 # endif
79
80 /*
81 * This module uses several "new" interfaces, among which is
82 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
83 * one of possible values you can pass to function in question. By
84 * checking if it's defined we can see if wincrypt.h and accompanying
85 * crypt32.lib are in shape. The native MingW32 headers up to and
86 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
87 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
88 * so we check for these too and avoid compiling.
89 * Yes, it's rather "weak" test and if compilation fails,
90 * then re-configure with -DOPENSSL_NO_CAPIENG.
91 */
92 # if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
93 defined(CERT_STORE_PROV_SYSTEM_A) && \
94 defined(CERT_STORE_READONLY_FLAG)
95 # define __COMPILE_CAPIENG
96 # endif /* CERT_KEY_PROV_INFO_PROP_ID */
97 # endif /* OPENSSL_NO_CAPIENG */
98 #endif /* OPENSSL_SYS_WIN32 */
99
100 #ifdef __COMPILE_CAPIENG
101
102 # undef X509_EXTENSIONS
103
104 /* Definitions which may be missing from earlier version of headers */
105 # ifndef CERT_STORE_OPEN_EXISTING_FLAG
106 # define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
107 # endif
108
109 # ifndef CERT_STORE_CREATE_NEW_FLAG
110 # define CERT_STORE_CREATE_NEW_FLAG 0x00002000
111 # endif
112
113 # ifndef CERT_SYSTEM_STORE_CURRENT_USER
114 # define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
115 # endif
116
117 # ifndef ALG_SID_SHA_256
118 # define ALG_SID_SHA_256 12
119 # endif
120 # ifndef ALG_SID_SHA_384
121 # define ALG_SID_SHA_384 13
122 # endif
123 # ifndef ALG_SID_SHA_512
124 # define ALG_SID_SHA_512 14
125 # endif
126
127 # ifndef CALG_SHA_256
128 # define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
129 # endif
130 # ifndef CALG_SHA_384
131 # define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
132 # endif
133 # ifndef CALG_SHA_512
134 # define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
135 # endif
136
137 # include <openssl/engine.h>
138 # include <openssl/pem.h>
139 # include <openssl/x509v3.h>
140
141 # include "e_capi_err.h"
142 # include "e_capi_err.c"
143
144 static const char *engine_capi_id = "capi";
145 static const char *engine_capi_name = "CryptoAPI ENGINE";
146
147 typedef struct CAPI_CTX_st CAPI_CTX;
148 typedef struct CAPI_KEY_st CAPI_KEY;
149
150 static void capi_addlasterror(void);
151 static void capi_adderror(DWORD err);
152
153 static void CAPI_trace(CAPI_CTX * ctx, char *format, ...);
154
155 static int capi_list_providers(CAPI_CTX * ctx, BIO *out);
156 static int capi_list_containers(CAPI_CTX * ctx, BIO *out);
157 int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *storename);
158 void capi_free_key(CAPI_KEY * key);
159
160 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
161 HCERTSTORE hstore);
162
163 CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id);
164
165 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
166 UI_METHOD *ui_method, void *callback_data);
167 static int capi_rsa_sign(int dtype, const unsigned char *m,
168 unsigned int m_len, unsigned char *sigret,
169 unsigned int *siglen, const RSA *rsa);
170 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
171 unsigned char *to, RSA *rsa, int padding);
172 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
173 unsigned char *to, RSA *rsa, int padding);
174 static int capi_rsa_free(RSA *rsa);
175
176 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
177 DSA *dsa);
178 static int capi_dsa_free(DSA *dsa);
179
180 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
181 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
182 EVP_PKEY **pkey, STACK_OF(X509) **pother,
183 UI_METHOD *ui_method,
184 void *callback_data);
185
186 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
187 # ifdef OPENSSL_CAPIENG_DIALOG
188 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
189 # endif
190
191 typedef PCCERT_CONTEXT(WINAPI *CERTDLG) (HCERTSTORE, HWND, LPCWSTR,
192 LPCWSTR, DWORD, DWORD, void *);
193 typedef HWND(WINAPI *GETCONSWIN) (void);
194
195 /*
196 * This structure contains CAPI ENGINE specific data: it contains various
197 * global options and affects how other functions behave.
198 */
199
200 # define CAPI_DBG_TRACE 2
201 # define CAPI_DBG_ERROR 1
202
203 struct CAPI_CTX_st {
204 int debug_level;
205 char *debug_file;
206 /* Parameters to use for container lookup */
207 DWORD keytype;
208 LPSTR cspname;
209 DWORD csptype;
210 /* Certificate store name to use */
211 LPSTR storename;
212 LPSTR ssl_client_store;
213 /* System store flags */
214 DWORD store_flags;
215 /* Lookup string meanings in load_private_key */
216 /* Substring of subject: uses "storename" */
217 # define CAPI_LU_SUBSTR 1
218 /* Friendly name: uses storename */
219 # define CAPI_LU_FNAME 2
220 /* Container name: uses cspname, keytype */
221 # define CAPI_LU_CONTNAME 3
222 int lookup_method;
223 /* Info to dump with dumpcerts option */
224 /* Issuer and serial name strings */
225 # define CAPI_DMP_SUMMARY 0x1
226 /* Friendly name */
227 # define CAPI_DMP_FNAME 0x2
228 /* Full X509_print dump */
229 # define CAPI_DMP_FULL 0x4
230 /* Dump PEM format certificate */
231 # define CAPI_DMP_PEM 0x8
232 /* Dump pseudo key (if possible) */
233 # define CAPI_DMP_PSKEY 0x10
234 /* Dump key info (if possible) */
235 # define CAPI_DMP_PKEYINFO 0x20
236 DWORD dump_flags;
237 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
238 CERTDLG certselectdlg;
239 GETCONSWIN getconswindow;
240 };
241
242 static CAPI_CTX *capi_ctx_new(void);
243 static void capi_ctx_free(CAPI_CTX * ctx);
244 static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
245 int check);
246 static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx);
247
248 # define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
249 # define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
250 # define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
251 # define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
252 # define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
253 # define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
254 # define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
255 # define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
256 # define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
257 # define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
258 # define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
259 # define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
260 # define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
261 # define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
262
263 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
264 {CAPI_CMD_LIST_CERTS,
265 "list_certs",
266 "List all certificates in store",
267 ENGINE_CMD_FLAG_NO_INPUT},
268 {CAPI_CMD_LOOKUP_CERT,
269 "lookup_cert",
270 "Lookup and output certificates",
271 ENGINE_CMD_FLAG_STRING},
272 {CAPI_CMD_DEBUG_LEVEL,
273 "debug_level",
274 "debug level (1=errors, 2=trace)",
275 ENGINE_CMD_FLAG_NUMERIC},
276 {CAPI_CMD_DEBUG_FILE,
277 "debug_file",
278 "debugging filename)",
279 ENGINE_CMD_FLAG_STRING},
280 {CAPI_CMD_KEYTYPE,
281 "key_type",
282 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
283 ENGINE_CMD_FLAG_NUMERIC},
284 {CAPI_CMD_LIST_CSPS,
285 "list_csps",
286 "List all CSPs",
287 ENGINE_CMD_FLAG_NO_INPUT},
288 {CAPI_CMD_SET_CSP_IDX,
289 "csp_idx",
290 "Set CSP by index",
291 ENGINE_CMD_FLAG_NUMERIC},
292 {CAPI_CMD_SET_CSP_NAME,
293 "csp_name",
294 "Set CSP name, (default CSP used if not specified)",
295 ENGINE_CMD_FLAG_STRING},
296 {CAPI_CMD_SET_CSP_TYPE,
297 "csp_type",
298 "Set CSP type, (default RSA_PROV_FULL)",
299 ENGINE_CMD_FLAG_NUMERIC},
300 {CAPI_CMD_LIST_CONTAINERS,
301 "list_containers",
302 "list container names",
303 ENGINE_CMD_FLAG_NO_INPUT},
304 {CAPI_CMD_LIST_OPTIONS,
305 "list_options",
306 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
307 "32=private key info)",
308 ENGINE_CMD_FLAG_NUMERIC},
309 {CAPI_CMD_LOOKUP_METHOD,
310 "lookup_method",
311 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
312 ENGINE_CMD_FLAG_NUMERIC},
313 {CAPI_CMD_STORE_NAME,
314 "store_name",
315 "certificate store name, default \"MY\"",
316 ENGINE_CMD_FLAG_STRING},
317 {CAPI_CMD_STORE_FLAGS,
318 "store_flags",
319 "Certificate store flags: 1 = system store",
320 ENGINE_CMD_FLAG_NUMERIC},
321
322 {0, NULL, NULL, 0}
323 };
324
325 static int capi_idx = -1;
326 static int rsa_capi_idx = -1;
327 static int dsa_capi_idx = -1;
328 static int cert_capi_idx = -1;
329
330 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
331 {
332 int ret = 1;
333 CAPI_CTX *ctx;
334 BIO *out;
335 if (capi_idx == -1) {
336 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
337 return 0;
338 }
339 ctx = ENGINE_get_ex_data(e, capi_idx);
340 out = BIO_new_fp(stdout, BIO_NOCLOSE);
341 if (out == NULL) {
342 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
343 return 0;
344 }
345 switch (cmd) {
346 case CAPI_CMD_LIST_CSPS:
347 ret = capi_list_providers(ctx, out);
348 break;
349
350 case CAPI_CMD_LIST_CERTS:
351 ret = capi_list_certs(ctx, out, NULL);
352 break;
353
354 case CAPI_CMD_LOOKUP_CERT:
355 ret = capi_list_certs(ctx, out, p);
356 break;
357
358 case CAPI_CMD_LIST_CONTAINERS:
359 ret = capi_list_containers(ctx, out);
360 break;
361
362 case CAPI_CMD_STORE_NAME:
363 OPENSSL_free(ctx->storename);
364 ctx->storename = OPENSSL_strdup(p);
365 CAPI_trace(ctx, "Setting store name to %s\n", p);
366 break;
367
368 case CAPI_CMD_STORE_FLAGS:
369 if (i & 1) {
370 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
371 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
372 } else {
373 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
374 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
375 }
376 CAPI_trace(ctx, "Setting flags to %d\n", i);
377 break;
378
379 case CAPI_CMD_DEBUG_LEVEL:
380 ctx->debug_level = (int)i;
381 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
382 break;
383
384 case CAPI_CMD_DEBUG_FILE:
385 ctx->debug_file = OPENSSL_strdup(p);
386 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
387 break;
388
389 case CAPI_CMD_KEYTYPE:
390 ctx->keytype = i;
391 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
392 break;
393
394 case CAPI_CMD_SET_CSP_IDX:
395 ret = capi_ctx_set_provname_idx(ctx, i);
396 break;
397
398 case CAPI_CMD_LIST_OPTIONS:
399 ctx->dump_flags = i;
400 break;
401
402 case CAPI_CMD_LOOKUP_METHOD:
403 if (i < 1 || i > 3) {
404 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
405 BIO_free(out);
406 return 0;
407 }
408 ctx->lookup_method = i;
409 break;
410
411 case CAPI_CMD_SET_CSP_NAME:
412 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
413 break;
414
415 case CAPI_CMD_SET_CSP_TYPE:
416 ctx->csptype = i;
417 break;
418
419 default:
420 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
421 ret = 0;
422 }
423
424 BIO_free(out);
425 return ret;
426
427 }
428
429 static RSA_METHOD capi_rsa_method = {
430 "CryptoAPI RSA method",
431 0, /* pub_enc */
432 0, /* pub_dec */
433 capi_rsa_priv_enc, /* priv_enc */
434 capi_rsa_priv_dec, /* priv_dec */
435 0, /* rsa_mod_exp */
436 0, /* bn_mod_exp */
437 0, /* init */
438 capi_rsa_free, /* finish */
439 0, /* flags */
440 NULL, /* app_data */
441 capi_rsa_sign, /* rsa_sign */
442 0 /* rsa_verify */
443 };
444
445 static DSA_METHOD capi_dsa_method = {
446 "CryptoAPI DSA method",
447 capi_dsa_do_sign, /* dsa_do_sign */
448 0, /* dsa_sign_setup */
449 0, /* dsa_do_verify */
450 0, /* dsa_mod_exp */
451 0, /* bn_mod_exp */
452 0, /* init */
453 capi_dsa_free, /* finish */
454 0, /* flags */
455 NULL, /* app_data */
456 0, /* dsa_paramgen */
457 0 /* dsa_keygen */
458 };
459
460 static int capi_init(ENGINE *e)
461 {
462 CAPI_CTX *ctx;
463 const RSA_METHOD *ossl_rsa_meth;
464 const DSA_METHOD *ossl_dsa_meth;
465
466 if (capi_idx < 0) {
467 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
468 if (capi_idx < 0)
469 goto memerr;
470
471 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
472
473 /* Setup RSA_METHOD */
474 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
475 ossl_rsa_meth = RSA_PKCS1_OpenSSL();
476 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
477 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
478 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
479 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
480
481 /* Setup DSA Method */
482 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
483 ossl_dsa_meth = DSA_OpenSSL();
484 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
485 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
486 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
487 }
488
489 ctx = capi_ctx_new();
490 if (ctx == NULL)
491 goto memerr;
492
493 ENGINE_set_ex_data(e, capi_idx, ctx);
494
495 # ifdef OPENSSL_CAPIENG_DIALOG
496 {
497 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
498 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
499 if (cryptui)
500 ctx->certselectdlg =
501 (CERTDLG) GetProcAddress(cryptui,
502 "CryptUIDlgSelectCertificateFromStore");
503 if (kernel)
504 ctx->getconswindow =
505 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
506 if (cryptui && !OPENSSL_isservice())
507 ctx->client_cert_select = cert_select_dialog;
508 }
509 # endif
510
511 return 1;
512
513 memerr:
514 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
515 return 0;
516
517 return 1;
518 }
519
520 static int capi_destroy(ENGINE *e)
521 {
522 ERR_unload_CAPI_strings();
523 return 1;
524 }
525
526 static int capi_finish(ENGINE *e)
527 {
528 CAPI_CTX *ctx;
529 ctx = ENGINE_get_ex_data(e, capi_idx);
530 capi_ctx_free(ctx);
531 ENGINE_set_ex_data(e, capi_idx, NULL);
532 return 1;
533 }
534
535 /*
536 * CryptoAPI key application data. This contains a handle to the private key
537 * container (for sign operations) and a handle to the key (for decrypt
538 * operations).
539 */
540
541 struct CAPI_KEY_st {
542 /* Associated certificate context (if any) */
543 PCCERT_CONTEXT pcert;
544 HCRYPTPROV hprov;
545 HCRYPTKEY key;
546 DWORD keyspec;
547 };
548
549 static int bind_capi(ENGINE *e)
550 {
551 if (!ENGINE_set_id(e, engine_capi_id)
552 || !ENGINE_set_name(e, engine_capi_name)
553 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
554 || !ENGINE_set_init_function(e, capi_init)
555 || !ENGINE_set_finish_function(e, capi_finish)
556 || !ENGINE_set_destroy_function(e, capi_destroy)
557 || !ENGINE_set_RSA(e, &capi_rsa_method)
558 || !ENGINE_set_DSA(e, &capi_dsa_method)
559 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
560 || !ENGINE_set_load_ssl_client_cert_function(e,
561 capi_load_ssl_client_cert)
562 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
563 || !ENGINE_set_ctrl_function(e, capi_ctrl))
564 return 0;
565 ERR_load_CAPI_strings();
566
567 return 1;
568
569 }
570
571 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
572 static int bind_helper(ENGINE *e, const char *id)
573 {
574 if (id && (strcmp(id, engine_capi_id) != 0))
575 return 0;
576 if (!bind_capi(e))
577 return 0;
578 return 1;
579 }
580
581 IMPLEMENT_DYNAMIC_CHECK_FN()
582 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
583 # else
584 static ENGINE *engine_capi(void)
585 {
586 ENGINE *ret = ENGINE_new();
587 if (ret == NULL)
588 return NULL;
589 if (!bind_capi(ret)) {
590 ENGINE_free(ret);
591 return NULL;
592 }
593 return ret;
594 }
595
596 void ENGINE_load_capi(void)
597 {
598 /* Copied from eng_[openssl|dyn].c */
599 ENGINE *toadd = engine_capi();
600 if (!toadd)
601 return;
602 ENGINE_add(toadd);
603 ENGINE_free(toadd);
604 ERR_clear_error();
605 }
606 # endif
607
608 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
609 {
610 int i;
611 /*
612 * Reverse buffer in place: since this is a keyblob structure that will
613 * be freed up after conversion anyway it doesn't matter if we change
614 * it.
615 */
616 for (i = 0; i < binlen / 2; i++) {
617 unsigned char c;
618 c = bin[i];
619 bin[i] = bin[binlen - i - 1];
620 bin[binlen - i - 1] = c;
621 }
622
623 if (!BN_bin2bn(bin, binlen, bn))
624 return 0;
625 return 1;
626 }
627
628 /* Given a CAPI_KEY get an EVP_PKEY structure */
629
630 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY * key)
631 {
632 unsigned char *pubkey = NULL;
633 DWORD len;
634 BLOBHEADER *bh;
635 RSA *rkey = NULL;
636 DSA *dkey = NULL;
637 EVP_PKEY *ret = NULL;
638 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
639 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
640 capi_addlasterror();
641 return NULL;
642 }
643
644 pubkey = OPENSSL_malloc(len);
645
646 if (pubkey == NULL)
647 goto memerr;
648
649 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
650 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
651 capi_addlasterror();
652 goto err;
653 }
654
655 bh = (BLOBHEADER *) pubkey;
656 if (bh->bType != PUBLICKEYBLOB) {
657 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
658 goto err;
659 }
660 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
661 RSAPUBKEY *rp;
662 DWORD rsa_modlen;
663 unsigned char *rsa_modulus;
664 rp = (RSAPUBKEY *) (bh + 1);
665 if (rp->magic != 0x31415352) {
666 char magstr[10];
667 BIO_snprintf(magstr, 10, "%lx", rp->magic);
668 CAPIerr(CAPI_F_CAPI_GET_PKEY,
669 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
670 ERR_add_error_data(2, "magic=0x", magstr);
671 goto err;
672 }
673 rsa_modulus = (unsigned char *)(rp + 1);
674 rkey = RSA_new_method(eng);
675 if (!rkey)
676 goto memerr;
677
678 rkey->e = BN_new();
679 rkey->n = BN_new();
680
681 if (rkey->e == NULL || rkey->n == NULL)
682 goto memerr;
683
684 if (!BN_set_word(rkey->e, rp->pubexp))
685 goto memerr;
686
687 rsa_modlen = rp->bitlen / 8;
688 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
689 goto memerr;
690
691 RSA_set_ex_data(rkey, rsa_capi_idx, key);
692
693 if ((ret = EVP_PKEY_new()) == NULL)
694 goto memerr;
695
696 EVP_PKEY_assign_RSA(ret, rkey);
697 rkey = NULL;
698
699 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
700 DSSPUBKEY *dp;
701 DWORD dsa_plen;
702 unsigned char *btmp;
703 dp = (DSSPUBKEY *) (bh + 1);
704 if (dp->magic != 0x31535344) {
705 char magstr[10];
706 BIO_snprintf(magstr, 10, "%lx", dp->magic);
707 CAPIerr(CAPI_F_CAPI_GET_PKEY,
708 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
709 ERR_add_error_data(2, "magic=0x", magstr);
710 goto err;
711 }
712 dsa_plen = dp->bitlen / 8;
713 btmp = (unsigned char *)(dp + 1);
714 dkey = DSA_new_method(eng);
715 if (!dkey)
716 goto memerr;
717 dkey->p = BN_new();
718 dkey->q = BN_new();
719 dkey->g = BN_new();
720 dkey->pub_key = BN_new();
721 if (dkey->p == NULL || dkey->q == NULL || dkey->g == NULL
722 || dkey->pub_key == NULL)
723 goto memerr;
724 if (!lend_tobn(dkey->p, btmp, dsa_plen))
725 goto memerr;
726 btmp += dsa_plen;
727 if (!lend_tobn(dkey->q, btmp, 20))
728 goto memerr;
729 btmp += 20;
730 if (!lend_tobn(dkey->g, btmp, dsa_plen))
731 goto memerr;
732 btmp += dsa_plen;
733 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
734 goto memerr;
735 btmp += dsa_plen;
736
737 DSA_set_ex_data(dkey, dsa_capi_idx, key);
738
739 if ((ret = EVP_PKEY_new()) == NULL)
740 goto memerr;
741
742 EVP_PKEY_assign_DSA(ret, dkey);
743 dkey = NULL;
744 } else {
745 char algstr[10];
746 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
747 CAPIerr(CAPI_F_CAPI_GET_PKEY,
748 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
749 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
750 goto err;
751 }
752
753 err:
754 OPENSSL_free(pubkey);
755 if (!ret) {
756 RSA_free(rkey);
757 DSA_free(dkey);
758 }
759
760 return ret;
761
762 memerr:
763 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
764 goto err;
765
766 }
767
768 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
769 UI_METHOD *ui_method, void *callback_data)
770 {
771 CAPI_CTX *ctx;
772 CAPI_KEY *key;
773 EVP_PKEY *ret;
774 ctx = ENGINE_get_ex_data(eng, capi_idx);
775
776 if (!ctx) {
777 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
778 return NULL;
779 }
780
781 key = capi_find_key(ctx, key_id);
782
783 if (!key)
784 return NULL;
785
786 ret = capi_get_pkey(eng, key);
787
788 if (!ret)
789 capi_free_key(key);
790 return ret;
791
792 }
793
794 /* CryptoAPI RSA operations */
795
796 int capi_rsa_priv_enc(int flen, const unsigned char *from,
797 unsigned char *to, RSA *rsa, int padding)
798 {
799 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
800 return -1;
801 }
802
803 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
804 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
805 {
806 ALG_ID alg;
807 HCRYPTHASH hash;
808 DWORD slen;
809 unsigned int i;
810 int ret = -1;
811 CAPI_KEY *capi_key;
812 CAPI_CTX *ctx;
813
814 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
815
816 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
817
818 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
819 if (!capi_key) {
820 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
821 return -1;
822 }
823 /* Convert the signature type to a CryptoAPI algorithm ID */
824 switch (dtype) {
825 case NID_sha256:
826 alg = CALG_SHA_256;
827 break;
828
829 case NID_sha384:
830 alg = CALG_SHA_384;
831 break;
832
833 case NID_sha512:
834 alg = CALG_SHA_512;
835 break;
836
837 case NID_sha1:
838 alg = CALG_SHA1;
839 break;
840
841 case NID_md5:
842 alg = CALG_MD5;
843 break;
844
845 case NID_md5_sha1:
846 alg = CALG_SSL3_SHAMD5;
847 break;
848 default:
849 {
850 char algstr[10];
851 BIO_snprintf(algstr, 10, "%x", dtype);
852 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
853 ERR_add_error_data(2, "NID=0x", algstr);
854 return -1;
855 }
856 }
857
858 /* Create the hash object */
859 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
860 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
861 capi_addlasterror();
862 return -1;
863 }
864 /* Set the hash value to the value passed */
865
866 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
867 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
868 capi_addlasterror();
869 goto err;
870 }
871
872 /* Finally sign it */
873 slen = RSA_size(rsa);
874 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
875 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
876 capi_addlasterror();
877 goto err;
878 } else {
879 ret = 1;
880 /* Inplace byte reversal of signature */
881 for (i = 0; i < slen / 2; i++) {
882 unsigned char c;
883 c = sigret[i];
884 sigret[i] = sigret[slen - i - 1];
885 sigret[slen - i - 1] = c;
886 }
887 *siglen = slen;
888 }
889
890 /* Now cleanup */
891
892 err:
893 CryptDestroyHash(hash);
894
895 return ret;
896 }
897
898 int capi_rsa_priv_dec(int flen, const unsigned char *from,
899 unsigned char *to, RSA *rsa, int padding)
900 {
901 int i;
902 unsigned char *tmpbuf;
903 CAPI_KEY *capi_key;
904 CAPI_CTX *ctx;
905 DWORD dlen;
906
907 if (flen <= 0)
908 return flen;
909
910 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
911
912 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
913
914 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
915 if (!capi_key) {
916 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
917 return -1;
918 }
919
920 if (padding != RSA_PKCS1_PADDING) {
921 char errstr[10];
922 BIO_snprintf(errstr, 10, "%d", padding);
923 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
924 ERR_add_error_data(2, "padding=", errstr);
925 return -1;
926 }
927
928 /* Create temp reverse order version of input */
929 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) {
930 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
931 return -1;
932 }
933 for (i = 0; i < flen; i++)
934 tmpbuf[flen - i - 1] = from[i];
935
936 /* Finally decrypt it */
937 dlen = flen;
938 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &dlen)) {
939 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
940 capi_addlasterror();
941 OPENSSL_free(tmpbuf);
942 return -1;
943 } else
944 memcpy(to, tmpbuf, (flen = (int)dlen));
945
946 OPENSSL_free(tmpbuf);
947
948 return flen;
949 }
950
951 static int capi_rsa_free(RSA *rsa)
952 {
953 CAPI_KEY *capi_key;
954 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
955 capi_free_key(capi_key);
956 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
957 return 1;
958 }
959
960 /* CryptoAPI DSA operations */
961
962 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
963 DSA *dsa)
964 {
965 HCRYPTHASH hash;
966 DWORD slen;
967 DSA_SIG *ret = NULL;
968 CAPI_KEY *capi_key;
969 CAPI_CTX *ctx;
970 unsigned char csigbuf[40];
971
972 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
973
974 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
975
976 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
977
978 if (!capi_key) {
979 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
980 return NULL;
981 }
982
983 if (dlen != 20) {
984 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
985 return NULL;
986 }
987
988 /* Create the hash object */
989 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
990 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
991 capi_addlasterror();
992 return NULL;
993 }
994
995 /* Set the hash value to the value passed */
996 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
997 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
998 capi_addlasterror();
999 goto err;
1000 }
1001
1002 /* Finally sign it */
1003 slen = sizeof(csigbuf);
1004 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1005 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1006 capi_addlasterror();
1007 goto err;
1008 } else {
1009 ret = DSA_SIG_new();
1010 if (ret == NULL)
1011 goto err;
1012 ret->r = BN_new();
1013 ret->s = BN_new();
1014 if (ret->r == NULL || ret->s == NULL)
1015 goto err;
1016 if (!lend_tobn(ret->r, csigbuf, 20)
1017 || !lend_tobn(ret->s, csigbuf + 20, 20)) {
1018 DSA_SIG_free(ret);
1019 ret = NULL;
1020 goto err;
1021 }
1022 }
1023
1024 /* Now cleanup */
1025
1026 err:
1027 OPENSSL_cleanse(csigbuf, 40);
1028 CryptDestroyHash(hash);
1029 return ret;
1030 }
1031
1032 static int capi_dsa_free(DSA *dsa)
1033 {
1034 CAPI_KEY *capi_key;
1035 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1036 capi_free_key(capi_key);
1037 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1038 return 1;
1039 }
1040
1041 static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
1042 va_list argptr)
1043 {
1044 BIO *out;
1045
1046 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1047 return;
1048 out = BIO_new_file(ctx->debug_file, "a+");
1049 if (out == NULL) {
1050 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1051 return;
1052 }
1053 BIO_vprintf(out, format, argptr);
1054 BIO_free(out);
1055 }
1056
1057 static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
1058 {
1059 va_list args;
1060 va_start(args, format);
1061 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1062 va_end(args);
1063 }
1064
1065 static void capi_addlasterror(void)
1066 {
1067 capi_adderror(GetLastError());
1068 }
1069
1070 static void capi_adderror(DWORD err)
1071 {
1072 char errstr[10];
1073 BIO_snprintf(errstr, 10, "%lX", err);
1074 ERR_add_error_data(2, "Error code= 0x", errstr);
1075 }
1076
1077 static char *wide_to_asc(LPCWSTR wstr)
1078 {
1079 char *str;
1080 int len_0, sz;
1081
1082 if (!wstr)
1083 return NULL;
1084 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1085 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1086 if (!sz) {
1087 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1088 return NULL;
1089 }
1090 str = OPENSSL_malloc(sz);
1091 if (str == NULL) {
1092 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1093 return NULL;
1094 }
1095 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1096 OPENSSL_free(str);
1097 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1098 return NULL;
1099 }
1100 return str;
1101 }
1102
1103 static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1104 DWORD idx)
1105 {
1106 DWORD len, err;
1107 LPTSTR name;
1108 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1109 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1110 err = GetLastError();
1111 if (err == ERROR_NO_MORE_ITEMS)
1112 return 2;
1113 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1114 capi_adderror(err);
1115 return 0;
1116 }
1117 name = OPENSSL_malloc(len);
1118 if (name == NULL) {
1119 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1120 return 0;
1121 }
1122 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1123 err = GetLastError();
1124 OPENSSL_free(name);
1125 if (err == ERROR_NO_MORE_ITEMS)
1126 return 2;
1127 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1128 capi_adderror(err);
1129 return 0;
1130 }
1131 if (sizeof(TCHAR) != sizeof(char)) {
1132 *pname = wide_to_asc((WCHAR *)name);
1133 OPENSSL_free(name);
1134 if (*pname == NULL)
1135 return 0;
1136 } else
1137 *pname = (char *)name;
1138 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1139 *ptype);
1140
1141 return 1;
1142 }
1143
1144 static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1145 {
1146 DWORD idx, ptype;
1147 int ret;
1148 LPSTR provname = NULL;
1149 CAPI_trace(ctx, "capi_list_providers\n");
1150 BIO_printf(out, "Available CSPs:\n");
1151 for (idx = 0;; idx++) {
1152 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1153 if (ret == 2)
1154 break;
1155 if (ret == 0)
1156 break;
1157 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
1158 OPENSSL_free(provname);
1159 }
1160 return 1;
1161 }
1162
1163 static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1164 {
1165 int ret = 1;
1166 HCRYPTPROV hprov;
1167 DWORD err, idx, flags, buflen = 0, clen;
1168 LPSTR cname;
1169 LPTSTR cspname = NULL;
1170
1171 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1172 ctx->csptype);
1173 if (ctx->cspname && sizeof(TCHAR) != sizeof(char)) {
1174 if ((clen =
1175 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))) {
1176 cspname = alloca(clen * sizeof(WCHAR));
1177 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1178 clen);
1179 }
1180 if (!cspname) {
1181 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1182 capi_addlasterror();
1183 return 0;
1184 }
1185 } else
1186 cspname = (TCHAR *)ctx->cspname;
1187 if (!CryptAcquireContext
1188 (&hprov, NULL, cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1189 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1190 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1191 capi_addlasterror();
1192 return 0;
1193 }
1194 if (!CryptGetProvParam
1195 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1196 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1197 capi_addlasterror();
1198 CryptReleaseContext(hprov, 0);
1199 return 0;
1200 }
1201 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1202 if (buflen == 0)
1203 buflen = 1024;
1204 cname = OPENSSL_malloc(buflen);
1205 if (cname == NULL) {
1206 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1207 goto err;
1208 }
1209
1210 for (idx = 0;; idx++) {
1211 clen = buflen;
1212 cname[0] = 0;
1213
1214 if (idx == 0)
1215 flags = CRYPT_FIRST;
1216 else
1217 flags = 0;
1218 if (!CryptGetProvParam
1219 (hprov, PP_ENUMCONTAINERS, (BYTE *) cname, &clen, flags)) {
1220 err = GetLastError();
1221 if (err == ERROR_NO_MORE_ITEMS)
1222 goto done;
1223 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1224 capi_adderror(err);
1225 goto err;
1226 }
1227 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1228 cname, clen, idx, flags);
1229 if (!cname[0] && (clen == buflen)) {
1230 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1231 goto done;
1232 }
1233 BIO_printf(out, "%lu. %s\n", idx, cname);
1234 }
1235 err:
1236
1237 ret = 0;
1238
1239 done:
1240 OPENSSL_free(cname);
1241 CryptReleaseContext(hprov, 0);
1242
1243 return ret;
1244 }
1245
1246 static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1247 {
1248 DWORD len;
1249 CRYPT_KEY_PROV_INFO *pinfo;
1250
1251 if (!CertGetCertificateContextProperty
1252 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1253 return NULL;
1254 pinfo = OPENSSL_malloc(len);
1255 if (pinfo == NULL) {
1256 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1257 return NULL;
1258 }
1259 if (!CertGetCertificateContextProperty
1260 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1261 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1262 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1263 capi_addlasterror();
1264 OPENSSL_free(pinfo);
1265 return NULL;
1266 }
1267 return pinfo;
1268 }
1269
1270 static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1271 CRYPT_KEY_PROV_INFO * pinfo)
1272 {
1273 char *provname = NULL, *contname = NULL;
1274 if (!pinfo) {
1275 BIO_printf(out, " No Private Key\n");
1276 return;
1277 }
1278 provname = wide_to_asc(pinfo->pwszProvName);
1279 contname = wide_to_asc(pinfo->pwszContainerName);
1280 if (!provname || !contname)
1281 goto err;
1282
1283 BIO_printf(out, " Private Key Info:\n");
1284 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
1285 pinfo->dwProvType);
1286 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
1287 pinfo->dwKeySpec);
1288 err:
1289 OPENSSL_free(provname);
1290 OPENSSL_free(contname);
1291 }
1292
1293 static char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1294 {
1295 LPWSTR wfname;
1296 DWORD dlen;
1297
1298 CAPI_trace(ctx, "capi_cert_get_fname\n");
1299 if (!CertGetCertificateContextProperty
1300 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1301 return NULL;
1302 wfname = OPENSSL_malloc(dlen);
1303 if (wfname == NULL)
1304 return NULL;
1305 if (CertGetCertificateContextProperty
1306 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1307 char *fname = wide_to_asc(wfname);
1308 OPENSSL_free(wfname);
1309 return fname;
1310 }
1311 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1312 capi_addlasterror();
1313
1314 OPENSSL_free(wfname);
1315 return NULL;
1316 }
1317
1318 static void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
1319 {
1320 X509 *x;
1321 const unsigned char *p;
1322 unsigned long flags = ctx->dump_flags;
1323 if (flags & CAPI_DMP_FNAME) {
1324 char *fname;
1325 fname = capi_cert_get_fname(ctx, cert);
1326 if (fname) {
1327 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1328 OPENSSL_free(fname);
1329 } else
1330 BIO_printf(out, " <No Friendly Name>\n");
1331 }
1332
1333 p = cert->pbCertEncoded;
1334 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1335 if (!x)
1336 BIO_printf(out, " <Can't parse certificate>\n");
1337 if (flags & CAPI_DMP_SUMMARY) {
1338 BIO_printf(out, " Subject: ");
1339 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1340 BIO_printf(out, "\n Issuer: ");
1341 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1342 BIO_printf(out, "\n");
1343 }
1344 if (flags & CAPI_DMP_FULL)
1345 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1346
1347 if (flags & CAPI_DMP_PKEYINFO) {
1348 CRYPT_KEY_PROV_INFO *pinfo;
1349 pinfo = capi_get_prov_info(ctx, cert);
1350 capi_dump_prov_info(ctx, out, pinfo);
1351 OPENSSL_free(pinfo);
1352 }
1353
1354 if (flags & CAPI_DMP_PEM)
1355 PEM_write_bio_X509(out, x);
1356 X509_free(x);
1357 }
1358
1359 static HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
1360 {
1361 HCERTSTORE hstore;
1362
1363 if (!storename)
1364 storename = ctx->storename;
1365 if (!storename)
1366 storename = "MY";
1367 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1368
1369 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1370 ctx->store_flags, storename);
1371 if (!hstore) {
1372 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1373 capi_addlasterror();
1374 }
1375 return hstore;
1376 }
1377
1378 int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1379 {
1380 char *storename;
1381 int idx;
1382 int ret = 1;
1383 HCERTSTORE hstore;
1384 PCCERT_CONTEXT cert = NULL;
1385
1386 storename = ctx->storename;
1387 if (!storename)
1388 storename = "MY";
1389 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1390
1391 hstore = capi_open_store(ctx, storename);
1392 if (!hstore)
1393 return 0;
1394 if (id) {
1395 cert = capi_find_cert(ctx, id, hstore);
1396 if (!cert) {
1397 ret = 0;
1398 goto err;
1399 }
1400 capi_dump_cert(ctx, out, cert);
1401 CertFreeCertificateContext(cert);
1402 } else {
1403 for (idx = 0;; idx++) {
1404 cert = CertEnumCertificatesInStore(hstore, cert);
1405 if (!cert)
1406 break;
1407 BIO_printf(out, "Certificate %d\n", idx);
1408 capi_dump_cert(ctx, out, cert);
1409 }
1410 }
1411 err:
1412 CertCloseStore(hstore, 0);
1413 return ret;
1414 }
1415
1416 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1417 HCERTSTORE hstore)
1418 {
1419 PCCERT_CONTEXT cert = NULL;
1420 char *fname = NULL;
1421 int match;
1422 switch (ctx->lookup_method) {
1423 case CAPI_LU_SUBSTR:
1424 return CertFindCertificateInStore(hstore,
1425 X509_ASN_ENCODING, 0,
1426 CERT_FIND_SUBJECT_STR_A, id, NULL);
1427 case CAPI_LU_FNAME:
1428 for (;;) {
1429 cert = CertEnumCertificatesInStore(hstore, cert);
1430 if (!cert)
1431 return NULL;
1432 fname = capi_cert_get_fname(ctx, cert);
1433 if (fname) {
1434 if (strcmp(fname, id))
1435 match = 0;
1436 else
1437 match = 1;
1438 OPENSSL_free(fname);
1439 if (match)
1440 return cert;
1441 }
1442 }
1443 default:
1444 return NULL;
1445 }
1446 }
1447
1448 static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const TCHAR *contname,
1449 TCHAR *provname, DWORD ptype, DWORD keyspec)
1450 {
1451 DWORD dwFlags = 0;
1452 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1453
1454 if (key == NULL)
1455 return NULL;
1456 if (sizeof(TCHAR) == sizeof(char))
1457 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1458 contname, provname, ptype);
1459 else if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1460 /* above 'if' is optimization to minimize malloc-ations */
1461 char *_contname = wide_to_asc((WCHAR *)contname);
1462 char *_provname = wide_to_asc((WCHAR *)provname);
1463
1464 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1465 _contname, _provname, ptype);
1466 OPENSSL_free(_provname);
1467 OPENSSL_free(_contname);
1468 }
1469 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1470 dwFlags = CRYPT_MACHINE_KEYSET;
1471 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, dwFlags)) {
1472 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1473 capi_addlasterror();
1474 goto err;
1475 }
1476 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1477 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1478 capi_addlasterror();
1479 CryptReleaseContext(key->hprov, 0);
1480 goto err;
1481 }
1482 key->keyspec = keyspec;
1483 key->pcert = NULL;
1484 return key;
1485
1486 err:
1487 OPENSSL_free(key);
1488 return NULL;
1489 }
1490
1491 static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1492 {
1493 CAPI_KEY *key = NULL;
1494 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1495 char *provname = NULL, *contname = NULL;
1496 pinfo = capi_get_prov_info(ctx, cert);
1497 if (!pinfo)
1498 goto err;
1499 if (sizeof(TCHAR) != sizeof(char))
1500 key = capi_get_key(ctx, (TCHAR *)pinfo->pwszContainerName,
1501 (TCHAR *)pinfo->pwszProvName,
1502 pinfo->dwProvType, pinfo->dwKeySpec);
1503 else {
1504 provname = wide_to_asc(pinfo->pwszProvName);
1505 contname = wide_to_asc(pinfo->pwszContainerName);
1506 if (!provname || !contname)
1507 goto err;
1508 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1509 pinfo->dwProvType, pinfo->dwKeySpec);
1510 }
1511
1512 err:
1513 OPENSSL_free(pinfo);
1514 OPENSSL_free(provname);
1515 OPENSSL_free(contname);
1516 return key;
1517 }
1518
1519 CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1520 {
1521 PCCERT_CONTEXT cert;
1522 HCERTSTORE hstore;
1523 CAPI_KEY *key = NULL;
1524 switch (ctx->lookup_method) {
1525 case CAPI_LU_SUBSTR:
1526 case CAPI_LU_FNAME:
1527 hstore = capi_open_store(ctx, NULL);
1528 if (!hstore)
1529 return NULL;
1530 cert = capi_find_cert(ctx, id, hstore);
1531 if (cert) {
1532 key = capi_get_cert_key(ctx, cert);
1533 CertFreeCertificateContext(cert);
1534 }
1535 CertCloseStore(hstore, 0);
1536 break;
1537
1538 case CAPI_LU_CONTNAME:
1539 if (sizeof(TCHAR) != sizeof(char)) {
1540 WCHAR *contname, *provname;
1541 DWORD len;
1542
1543 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1544 (contname = alloca(len * sizeof(WCHAR)),
1545 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1546 (len =
1547 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))
1548 && (provname =
1549 alloca(len * sizeof(WCHAR)), MultiByteToWideChar(CP_ACP,
1550 0,
1551 ctx->cspname,
1552 -1,
1553 provname,
1554 len)))
1555 key =
1556 capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1557 ctx->csptype, ctx->keytype);
1558 } else
1559 key = capi_get_key(ctx, (TCHAR *)id,
1560 (TCHAR *)ctx->cspname,
1561 ctx->csptype, ctx->keytype);
1562 break;
1563 }
1564
1565 return key;
1566 }
1567
1568 void capi_free_key(CAPI_KEY * key)
1569 {
1570 if (!key)
1571 return;
1572 CryptDestroyKey(key->key);
1573 CryptReleaseContext(key->hprov, 0);
1574 if (key->pcert)
1575 CertFreeCertificateContext(key->pcert);
1576 OPENSSL_free(key);
1577 }
1578
1579 /* Initialize a CAPI_CTX structure */
1580
1581 static CAPI_CTX *capi_ctx_new(void)
1582 {
1583 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
1584
1585 if (ctx == NULL) {
1586 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1587 return NULL;
1588 }
1589 ctx->csptype = PROV_RSA_FULL;
1590 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1591 ctx->keytype = AT_KEYEXCHANGE;
1592 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1593 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1594 ctx->lookup_method = CAPI_LU_SUBSTR;
1595 ctx->client_cert_select = cert_select_simple;
1596 return ctx;
1597 }
1598
1599 static void capi_ctx_free(CAPI_CTX * ctx)
1600 {
1601 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1602 if (!ctx)
1603 return;
1604 OPENSSL_free(ctx->cspname);
1605 OPENSSL_free(ctx->debug_file);
1606 OPENSSL_free(ctx->storename);
1607 OPENSSL_free(ctx->ssl_client_store);
1608 OPENSSL_free(ctx);
1609 }
1610
1611 static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1612 int check)
1613 {
1614 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1615 if (check) {
1616 HCRYPTPROV hprov;
1617 LPTSTR name = NULL;
1618
1619 if (sizeof(TCHAR) != sizeof(char)) {
1620 DWORD len;
1621 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1622 name = alloca(len * sizeof(WCHAR));
1623 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1624 }
1625 } else
1626 name = (TCHAR *)pname;
1627
1628 if (!name || !CryptAcquireContext(&hprov, NULL, name, type,
1629 CRYPT_VERIFYCONTEXT)) {
1630 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1631 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1632 capi_addlasterror();
1633 return 0;
1634 }
1635 CryptReleaseContext(hprov, 0);
1636 }
1637 OPENSSL_free(ctx->cspname);
1638 ctx->cspname = OPENSSL_strdup(pname);
1639 ctx->csptype = type;
1640 return 1;
1641 }
1642
1643 static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1644 {
1645 LPSTR pname;
1646 DWORD type;
1647 int res;
1648 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1649 return 0;
1650 res = capi_ctx_set_provname(ctx, pname, type, 0);
1651 OPENSSL_free(pname);
1652 return res;
1653 }
1654
1655 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1656 {
1657 int i;
1658 X509_NAME *nm;
1659 /* Special case: empty list: match anything */
1660 if (sk_X509_NAME_num(ca_dn) <= 0)
1661 return 1;
1662 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1663 nm = sk_X509_NAME_value(ca_dn, i);
1664 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1665 return 1;
1666 }
1667 return 0;
1668 }
1669
1670 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1671 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1672 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1673 UI_METHOD *ui_method,
1674 void *callback_data)
1675 {
1676 STACK_OF(X509) *certs = NULL;
1677 X509 *x;
1678 char *storename;
1679 const unsigned char *p;
1680 int i, client_cert_idx;
1681 HCERTSTORE hstore;
1682 PCCERT_CONTEXT cert = NULL, excert = NULL;
1683 CAPI_CTX *ctx;
1684 CAPI_KEY *key;
1685 ctx = ENGINE_get_ex_data(e, capi_idx);
1686
1687 *pcert = NULL;
1688 *pkey = NULL;
1689
1690 storename = ctx->ssl_client_store;
1691 if (!storename)
1692 storename = "MY";
1693
1694 hstore = capi_open_store(ctx, storename);
1695 if (!hstore)
1696 return 0;
1697 /* Enumerate all certificates collect any matches */
1698 for (i = 0;; i++) {
1699 cert = CertEnumCertificatesInStore(hstore, cert);
1700 if (!cert)
1701 break;
1702 p = cert->pbCertEncoded;
1703 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1704 if (!x) {
1705 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1706 continue;
1707 }
1708 if (cert_issuer_match(ca_dn, x)
1709 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1710 key = capi_get_cert_key(ctx, cert);
1711 if (!key) {
1712 X509_free(x);
1713 continue;
1714 }
1715 /*
1716 * Match found: attach extra data to it so we can retrieve the
1717 * key later.
1718 */
1719 excert = CertDuplicateCertificateContext(cert);
1720 key->pcert = excert;
1721 X509_set_ex_data(x, cert_capi_idx, key);
1722
1723 if (!certs)
1724 certs = sk_X509_new_null();
1725
1726 sk_X509_push(certs, x);
1727 } else
1728 X509_free(x);
1729
1730 }
1731
1732 if (cert)
1733 CertFreeCertificateContext(cert);
1734 if (hstore)
1735 CertCloseStore(hstore, 0);
1736
1737 if (!certs)
1738 return 0;
1739
1740 /* Select the appropriate certificate */
1741
1742 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1743
1744 /* Set the selected certificate and free the rest */
1745
1746 for (i = 0; i < sk_X509_num(certs); i++) {
1747 x = sk_X509_value(certs, i);
1748 if (i == client_cert_idx)
1749 *pcert = x;
1750 else {
1751 key = X509_get_ex_data(x, cert_capi_idx);
1752 capi_free_key(key);
1753 X509_free(x);
1754 }
1755 }
1756
1757 sk_X509_free(certs);
1758
1759 if (!*pcert)
1760 return 0;
1761
1762 /* Setup key for selected certificate */
1763
1764 key = X509_get_ex_data(*pcert, cert_capi_idx);
1765 *pkey = capi_get_pkey(e, key);
1766 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1767
1768 return 1;
1769
1770 }
1771
1772 /* Simple client cert selection function: always select first */
1773
1774 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1775 {
1776 return 0;
1777 }
1778
1779 # ifdef OPENSSL_CAPIENG_DIALOG
1780
1781 /*
1782 * More complex cert selection function, using standard function
1783 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1784 */
1785
1786 /*
1787 * Definitions which are in cryptuiapi.h but this is not present in older
1788 * versions of headers.
1789 */
1790
1791 # ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1792 # define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1793 # define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1794 # endif
1795
1796 # define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1797 # define dlg_prompt L"Select a certificate to use for authentication"
1798 # define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1799 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1800
1801 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1802 {
1803 X509 *x;
1804 HCERTSTORE dstore;
1805 PCCERT_CONTEXT cert;
1806 CAPI_CTX *ctx;
1807 CAPI_KEY *key;
1808 HWND hwnd;
1809 int i, idx = -1;
1810 if (sk_X509_num(certs) == 1)
1811 return 0;
1812 ctx = ENGINE_get_ex_data(e, capi_idx);
1813 /* Create an in memory store of certificates */
1814 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1815 CERT_STORE_CREATE_NEW_FLAG, NULL);
1816 if (!dstore) {
1817 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1818 capi_addlasterror();
1819 goto err;
1820 }
1821 /* Add all certificates to store */
1822 for (i = 0; i < sk_X509_num(certs); i++) {
1823 x = sk_X509_value(certs, i);
1824 key = X509_get_ex_data(x, cert_capi_idx);
1825
1826 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1827 CERT_STORE_ADD_NEW, NULL)) {
1828 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1829 capi_addlasterror();
1830 goto err;
1831 }
1832
1833 }
1834 hwnd = GetForegroundWindow();
1835 if (!hwnd)
1836 hwnd = GetActiveWindow();
1837 if (!hwnd && ctx->getconswindow)
1838 hwnd = ctx->getconswindow();
1839 /* Call dialog to select one */
1840 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1841 dlg_columns, 0, NULL);
1842
1843 /* Find matching cert from list */
1844 if (cert) {
1845 for (i = 0; i < sk_X509_num(certs); i++) {
1846 x = sk_X509_value(certs, i);
1847 key = X509_get_ex_data(x, cert_capi_idx);
1848 if (CertCompareCertificate
1849 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1850 key->pcert->pCertInfo)) {
1851 idx = i;
1852 break;
1853 }
1854 }
1855 }
1856
1857 err:
1858 if (dstore)
1859 CertCloseStore(dstore, 0);
1860 return idx;
1861
1862 }
1863 # endif
1864
1865 #else /* !__COMPILE_CAPIENG */
1866 # include <openssl/engine.h>
1867 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
1868 OPENSSL_EXPORT
1869 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1870 OPENSSL_EXPORT
1871 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1872 {
1873 return 0;
1874 }
1875
1876 IMPLEMENT_DYNAMIC_CHECK_FN()
1877 # else
1878 void ENGINE_load_capi(void)
1879 {
1880 }
1881 # endif
1882 #endif
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