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Fix intermittent sslapitest early data related failures
[thirdparty/openssl.git] / engines / e_capi.c
1 /*
2 * Copyright 2008-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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 DEFINE_STACK_OF(X509)
35 DEFINE_STACK_OF(X509_NAME)
36
37 /*
38 * This module uses several "new" interfaces, among which is
39 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
40 * one of possible values you can pass to function in question. By
41 * checking if it's defined we can see if wincrypt.h and accompanying
42 * crypt32.lib are in shape. The native MingW32 headers up to and
43 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
44 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
45 * so we check for these too and avoid compiling.
46 * Yes, it's rather "weak" test and if compilation fails,
47 * then re-configure with -DOPENSSL_NO_CAPIENG.
48 */
49 # if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
50 defined(CERT_STORE_PROV_SYSTEM_A) && \
51 defined(CERT_STORE_READONLY_FLAG)
52 # define __COMPILE_CAPIENG
53 # endif /* CERT_KEY_PROV_INFO_PROP_ID */
54 # endif /* OPENSSL_NO_CAPIENG */
55 #endif /* _WIN32 */
56
57 #ifdef __COMPILE_CAPIENG
58
59 # undef X509_EXTENSIONS
60
61 /* Definitions which may be missing from earlier version of headers */
62 # ifndef CERT_STORE_OPEN_EXISTING_FLAG
63 # define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
64 # endif
65
66 # ifndef CERT_STORE_CREATE_NEW_FLAG
67 # define CERT_STORE_CREATE_NEW_FLAG 0x00002000
68 # endif
69
70 # ifndef CERT_SYSTEM_STORE_CURRENT_USER
71 # define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
72 # endif
73
74 # ifndef ALG_SID_SHA_256
75 # define ALG_SID_SHA_256 12
76 # endif
77 # ifndef ALG_SID_SHA_384
78 # define ALG_SID_SHA_384 13
79 # endif
80 # ifndef ALG_SID_SHA_512
81 # define ALG_SID_SHA_512 14
82 # endif
83
84 # ifndef CALG_SHA_256
85 # define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
86 # endif
87 # ifndef CALG_SHA_384
88 # define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
89 # endif
90 # ifndef CALG_SHA_512
91 # define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
92 # endif
93
94 # ifndef PROV_RSA_AES
95 # define PROV_RSA_AES 24
96 # endif
97
98 # include <openssl/engine.h>
99 # include <openssl/pem.h>
100 # include <openssl/x509v3.h>
101
102 # include "e_capi_err.h"
103 # include "e_capi_err.c"
104
105 static const char *engine_capi_id = "capi";
106 static const char *engine_capi_name = "CryptoAPI ENGINE";
107
108 typedef struct CAPI_CTX_st CAPI_CTX;
109 typedef struct CAPI_KEY_st CAPI_KEY;
110
111 static void capi_addlasterror(void);
112 static void capi_adderror(DWORD err);
113
114 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
115
116 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
117 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
118 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
119 void capi_free_key(CAPI_KEY *key);
120
121 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
122 HCERTSTORE hstore);
123
124 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
125
126 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
127 UI_METHOD *ui_method, void *callback_data);
128 static int capi_rsa_sign(int dtype, const unsigned char *m,
129 unsigned int m_len, unsigned char *sigret,
130 unsigned int *siglen, const RSA *rsa);
131 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
132 unsigned char *to, RSA *rsa, int padding);
133 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
134 unsigned char *to, RSA *rsa, int padding);
135 static int capi_rsa_free(RSA *rsa);
136
137 # ifndef OPENSSL_NO_DSA
138 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
139 DSA *dsa);
140 static int capi_dsa_free(DSA *dsa);
141 # endif
142
143 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
144 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
145 EVP_PKEY **pkey, STACK_OF(X509) **pother,
146 UI_METHOD *ui_method,
147 void *callback_data);
148
149 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
150 # ifdef OPENSSL_CAPIENG_DIALOG
151 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
152 # endif
153
154 void engine_load_capi_int(void);
155
156 typedef PCCERT_CONTEXT(WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
157 LPCWSTR, DWORD, DWORD, void *);
158 typedef HWND(WINAPI *GETCONSWIN)(void);
159
160 /*
161 * This structure contains CAPI ENGINE specific data: it contains various
162 * global options and affects how other functions behave.
163 */
164
165 # define CAPI_DBG_TRACE 2
166 # define CAPI_DBG_ERROR 1
167
168 struct CAPI_CTX_st {
169 int debug_level;
170 char *debug_file;
171 /* Parameters to use for container lookup */
172 DWORD keytype;
173 LPSTR cspname;
174 DWORD csptype;
175 /* Certificate store name to use */
176 LPSTR storename;
177 LPSTR ssl_client_store;
178 /* System store flags */
179 DWORD store_flags;
180 /* Lookup string meanings in load_private_key */
181 # define CAPI_LU_SUBSTR 1 /* Substring of subject: uses "storename" */
182 # define CAPI_LU_FNAME 2 /* Friendly name: uses storename */
183 # define CAPI_LU_CONTNAME 3 /* Container name: uses cspname, keytype */
184 int lookup_method;
185 /* Info to dump with dumpcerts option */
186 # define CAPI_DMP_SUMMARY 0x1 /* Issuer and serial name strings */
187 # define CAPI_DMP_FNAME 0x2 /* Friendly name */
188 # define CAPI_DMP_FULL 0x4 /* Full X509_print dump */
189 # define CAPI_DMP_PEM 0x8 /* Dump PEM format certificate */
190 # define CAPI_DMP_PSKEY 0x10 /* Dump pseudo key (if possible) */
191 # define CAPI_DMP_PKEYINFO 0x20 /* Dump key info (if possible) */
192 DWORD dump_flags;
193 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
194 CERTDLG certselectdlg;
195 GETCONSWIN getconswindow;
196 };
197
198 static CAPI_CTX *capi_ctx_new(void);
199 static void capi_ctx_free(CAPI_CTX *ctx);
200 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
201 int check);
202 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
203
204 # define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
205 # define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
206 # define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
207 # define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
208 # define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
209 # define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
210 # define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
211 # define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
212 # define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
213 # define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
214 # define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
215 # define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
216 # define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
217 # define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
218
219 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
220 {CAPI_CMD_LIST_CERTS,
221 "list_certs",
222 "List all certificates in store",
223 ENGINE_CMD_FLAG_NO_INPUT},
224 {CAPI_CMD_LOOKUP_CERT,
225 "lookup_cert",
226 "Lookup and output certificates",
227 ENGINE_CMD_FLAG_STRING},
228 {CAPI_CMD_DEBUG_LEVEL,
229 "debug_level",
230 "debug level (1=errors, 2=trace)",
231 ENGINE_CMD_FLAG_NUMERIC},
232 {CAPI_CMD_DEBUG_FILE,
233 "debug_file",
234 "debugging filename)",
235 ENGINE_CMD_FLAG_STRING},
236 {CAPI_CMD_KEYTYPE,
237 "key_type",
238 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
239 ENGINE_CMD_FLAG_NUMERIC},
240 {CAPI_CMD_LIST_CSPS,
241 "list_csps",
242 "List all CSPs",
243 ENGINE_CMD_FLAG_NO_INPUT},
244 {CAPI_CMD_SET_CSP_IDX,
245 "csp_idx",
246 "Set CSP by index",
247 ENGINE_CMD_FLAG_NUMERIC},
248 {CAPI_CMD_SET_CSP_NAME,
249 "csp_name",
250 "Set CSP name, (default CSP used if not specified)",
251 ENGINE_CMD_FLAG_STRING},
252 {CAPI_CMD_SET_CSP_TYPE,
253 "csp_type",
254 "Set CSP type, (default RSA_PROV_FULL)",
255 ENGINE_CMD_FLAG_NUMERIC},
256 {CAPI_CMD_LIST_CONTAINERS,
257 "list_containers",
258 "list container names",
259 ENGINE_CMD_FLAG_NO_INPUT},
260 {CAPI_CMD_LIST_OPTIONS,
261 "list_options",
262 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
263 "32=private key info)",
264 ENGINE_CMD_FLAG_NUMERIC},
265 {CAPI_CMD_LOOKUP_METHOD,
266 "lookup_method",
267 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
268 ENGINE_CMD_FLAG_NUMERIC},
269 {CAPI_CMD_STORE_NAME,
270 "store_name",
271 "certificate store name, default \"MY\"",
272 ENGINE_CMD_FLAG_STRING},
273 {CAPI_CMD_STORE_FLAGS,
274 "store_flags",
275 "Certificate store flags: 1 = system store",
276 ENGINE_CMD_FLAG_NUMERIC},
277
278 {0, NULL, NULL, 0}
279 };
280
281 static int capi_idx = -1;
282 static int rsa_capi_idx = -1;
283 static int dsa_capi_idx = -1;
284 static int cert_capi_idx = -1;
285
286 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
287 {
288 int ret = 1;
289 CAPI_CTX *ctx;
290 BIO *out;
291 LPSTR tmpstr;
292 if (capi_idx == -1) {
293 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
294 return 0;
295 }
296 ctx = ENGINE_get_ex_data(e, capi_idx);
297 out = BIO_new_fp(stdout, BIO_NOCLOSE);
298 if (out == NULL) {
299 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
300 return 0;
301 }
302 switch (cmd) {
303 case CAPI_CMD_LIST_CSPS:
304 ret = capi_list_providers(ctx, out);
305 break;
306
307 case CAPI_CMD_LIST_CERTS:
308 ret = capi_list_certs(ctx, out, NULL);
309 break;
310
311 case CAPI_CMD_LOOKUP_CERT:
312 ret = capi_list_certs(ctx, out, p);
313 break;
314
315 case CAPI_CMD_LIST_CONTAINERS:
316 ret = capi_list_containers(ctx, out);
317 break;
318
319 case CAPI_CMD_STORE_NAME:
320 tmpstr = OPENSSL_strdup(p);
321 if (tmpstr != NULL) {
322 OPENSSL_free(ctx->storename);
323 ctx->storename = tmpstr;
324 CAPI_trace(ctx, "Setting store name to %s\n", p);
325 } else {
326 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE);
327 ret = 0;
328 }
329 break;
330
331 case CAPI_CMD_STORE_FLAGS:
332 if (i & 1) {
333 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
334 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
335 } else {
336 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
337 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
338 }
339 CAPI_trace(ctx, "Setting flags to %d\n", i);
340 break;
341
342 case CAPI_CMD_DEBUG_LEVEL:
343 ctx->debug_level = (int)i;
344 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
345 break;
346
347 case CAPI_CMD_DEBUG_FILE:
348 tmpstr = OPENSSL_strdup(p);
349 if (tmpstr != NULL) {
350 ctx->debug_file = tmpstr;
351 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
352 } else {
353 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE);
354 ret = 0;
355 }
356 break;
357
358 case CAPI_CMD_KEYTYPE:
359 ctx->keytype = i;
360 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
361 break;
362
363 case CAPI_CMD_SET_CSP_IDX:
364 ret = capi_ctx_set_provname_idx(ctx, i);
365 break;
366
367 case CAPI_CMD_LIST_OPTIONS:
368 ctx->dump_flags = i;
369 break;
370
371 case CAPI_CMD_LOOKUP_METHOD:
372 if (i < 1 || i > 3) {
373 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
374 BIO_free(out);
375 return 0;
376 }
377 ctx->lookup_method = i;
378 break;
379
380 case CAPI_CMD_SET_CSP_NAME:
381 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
382 break;
383
384 case CAPI_CMD_SET_CSP_TYPE:
385 ctx->csptype = i;
386 break;
387
388 default:
389 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
390 ret = 0;
391 }
392
393 BIO_free(out);
394 return ret;
395
396 }
397
398 static RSA_METHOD *capi_rsa_method = NULL;
399 # ifndef OPENSSL_NO_DSA
400 static DSA_METHOD *capi_dsa_method = NULL;
401 # endif
402
403 static int use_aes_csp = 0;
404 static const WCHAR rsa_aes_cspname[] =
405 L"Microsoft Enhanced RSA and AES Cryptographic Provider";
406 static const WCHAR rsa_enh_cspname[] =
407 L"Microsoft Enhanced Cryptographic Provider v1.0";
408
409 static int capi_init(ENGINE *e)
410 {
411 CAPI_CTX *ctx;
412 const RSA_METHOD *ossl_rsa_meth;
413 # ifndef OPENSSL_NO_DSA
414 const DSA_METHOD *ossl_dsa_meth;
415 # endif
416 HCRYPTPROV hprov;
417
418 if (capi_idx < 0) {
419 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
420 if (capi_idx < 0)
421 goto memerr;
422
423 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
424
425 /* Setup RSA_METHOD */
426 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
427 ossl_rsa_meth = RSA_PKCS1_OpenSSL();
428 if ( !RSA_meth_set_pub_enc(capi_rsa_method,
429 RSA_meth_get_pub_enc(ossl_rsa_meth))
430 || !RSA_meth_set_pub_dec(capi_rsa_method,
431 RSA_meth_get_pub_dec(ossl_rsa_meth))
432 || !RSA_meth_set_priv_enc(capi_rsa_method, capi_rsa_priv_enc)
433 || !RSA_meth_set_priv_dec(capi_rsa_method, capi_rsa_priv_dec)
434 || !RSA_meth_set_mod_exp(capi_rsa_method,
435 RSA_meth_get_mod_exp(ossl_rsa_meth))
436 || !RSA_meth_set_bn_mod_exp(capi_rsa_method,
437 RSA_meth_get_bn_mod_exp(ossl_rsa_meth))
438 || !RSA_meth_set_finish(capi_rsa_method, capi_rsa_free)
439 || !RSA_meth_set_sign(capi_rsa_method, capi_rsa_sign)) {
440 goto memerr;
441 }
442
443 # ifndef OPENSSL_NO_DSA
444 /* Setup DSA Method */
445 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
446 ossl_dsa_meth = DSA_OpenSSL();
447 if ( !DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign)
448 || !DSA_meth_set_verify(capi_dsa_method,
449 DSA_meth_get_verify(ossl_dsa_meth))
450 || !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free)
451 || !DSA_meth_set_mod_exp(capi_dsa_method,
452 DSA_meth_get_mod_exp(ossl_dsa_meth))
453 || !DSA_meth_set_bn_mod_exp(capi_dsa_method,
454 DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) {
455 goto memerr;
456 }
457 # endif
458 }
459
460 ctx = capi_ctx_new();
461 if (ctx == NULL)
462 goto memerr;
463
464 ENGINE_set_ex_data(e, capi_idx, ctx);
465
466 # ifdef OPENSSL_CAPIENG_DIALOG
467 {
468 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
469 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
470 if (cryptui)
471 ctx->certselectdlg =
472 (CERTDLG) GetProcAddress(cryptui,
473 "CryptUIDlgSelectCertificateFromStore");
474 if (kernel)
475 ctx->getconswindow =
476 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
477 if (cryptui && !OPENSSL_isservice())
478 ctx->client_cert_select = cert_select_dialog;
479 }
480 # endif
481
482 /* See if there is RSA+AES CSP */
483 if (CryptAcquireContextW(&hprov, NULL, rsa_aes_cspname, PROV_RSA_AES,
484 CRYPT_VERIFYCONTEXT)) {
485 use_aes_csp = 1;
486 CryptReleaseContext(hprov, 0);
487 }
488
489 return 1;
490
491 memerr:
492 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
493 return 0;
494
495 return 1;
496 }
497
498 static int capi_destroy(ENGINE *e)
499 {
500 RSA_meth_free(capi_rsa_method);
501 capi_rsa_method = NULL;
502 # ifndef OPENSSL_NO_DSA
503 DSA_meth_free(capi_dsa_method);
504 capi_dsa_method = NULL;
505 # endif
506 ERR_unload_CAPI_strings();
507 return 1;
508 }
509
510 static int capi_finish(ENGINE *e)
511 {
512 CAPI_CTX *ctx;
513 ctx = ENGINE_get_ex_data(e, capi_idx);
514 capi_ctx_free(ctx);
515 ENGINE_set_ex_data(e, capi_idx, NULL);
516 return 1;
517 }
518
519 /*
520 * CryptoAPI key application data. This contains a handle to the private key
521 * container (for sign operations) and a handle to the key (for decrypt
522 * operations).
523 */
524
525 struct CAPI_KEY_st {
526 /* Associated certificate context (if any) */
527 PCCERT_CONTEXT pcert;
528 HCRYPTPROV hprov;
529 HCRYPTKEY key;
530 DWORD keyspec;
531 };
532
533 static int bind_capi(ENGINE *e)
534 {
535 capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0);
536 if (capi_rsa_method == NULL)
537 return 0;
538 # ifndef OPENSSL_NO_DSA
539 capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0);
540 if (capi_dsa_method == NULL)
541 goto memerr;
542 # endif
543 if (!ENGINE_set_id(e, engine_capi_id)
544 || !ENGINE_set_name(e, engine_capi_name)
545 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
546 || !ENGINE_set_init_function(e, capi_init)
547 || !ENGINE_set_finish_function(e, capi_finish)
548 || !ENGINE_set_destroy_function(e, capi_destroy)
549 || !ENGINE_set_RSA(e, capi_rsa_method)
550 # ifndef OPENSSL_NO_DSA
551 || !ENGINE_set_DSA(e, capi_dsa_method)
552 # endif
553 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
554 || !ENGINE_set_load_ssl_client_cert_function(e,
555 capi_load_ssl_client_cert)
556 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
557 || !ENGINE_set_ctrl_function(e, capi_ctrl))
558 goto memerr;
559 ERR_load_CAPI_strings();
560
561 return 1;
562 memerr:
563 RSA_meth_free(capi_rsa_method);
564 capi_rsa_method = NULL;
565 # ifndef OPENSSL_NO_DSA
566 DSA_meth_free(capi_dsa_method);
567 capi_dsa_method = NULL;
568 # endif
569 return 0;
570 }
571
572 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
573 static int bind_helper(ENGINE *e, const char *id)
574 {
575 if (id && (strcmp(id, engine_capi_id) != 0))
576 return 0;
577 if (!bind_capi(e))
578 return 0;
579 return 1;
580 }
581
582 IMPLEMENT_DYNAMIC_CHECK_FN()
583 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
584 # else
585 static ENGINE *engine_capi(void)
586 {
587 ENGINE *ret = ENGINE_new();
588 if (ret == NULL)
589 return NULL;
590 if (!bind_capi(ret)) {
591 ENGINE_free(ret);
592 return NULL;
593 }
594 return ret;
595 }
596
597 void engine_load_capi_int(void)
598 {
599 /* Copied from eng_[openssl|dyn].c */
600 ENGINE *toadd = engine_capi();
601 if (!toadd)
602 return;
603 ENGINE_add(toadd);
604 ENGINE_free(toadd);
605 ERR_clear_error();
606 }
607 # endif
608
609 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
610 {
611 int i;
612 /*
613 * Reverse buffer in place: since this is a keyblob structure that will
614 * be freed up after conversion anyway it doesn't matter if we change
615 * it.
616 */
617 for (i = 0; i < binlen / 2; i++) {
618 unsigned char c;
619 c = bin[i];
620 bin[i] = bin[binlen - i - 1];
621 bin[binlen - i - 1] = c;
622 }
623
624 if (!BN_bin2bn(bin, binlen, bn))
625 return 0;
626 return 1;
627 }
628
629 /* Given a CAPI_KEY get an EVP_PKEY structure */
630
631 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
632 {
633 unsigned char *pubkey = NULL;
634 DWORD len;
635 BLOBHEADER *bh;
636 RSA *rkey = NULL;
637 DSA *dkey = NULL;
638 EVP_PKEY *ret = NULL;
639 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
640 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
641 capi_addlasterror();
642 return NULL;
643 }
644
645 pubkey = OPENSSL_malloc(len);
646
647 if (pubkey == NULL)
648 goto memerr;
649
650 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
651 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
652 capi_addlasterror();
653 goto err;
654 }
655
656 bh = (BLOBHEADER *) pubkey;
657 if (bh->bType != PUBLICKEYBLOB) {
658 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
659 goto err;
660 }
661 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
662 RSAPUBKEY *rp;
663 DWORD rsa_modlen;
664 BIGNUM *e = NULL, *n = NULL;
665 unsigned char *rsa_modulus;
666 rp = (RSAPUBKEY *) (bh + 1);
667 if (rp->magic != 0x31415352) {
668 char magstr[10];
669 BIO_snprintf(magstr, 10, "%lx", rp->magic);
670 CAPIerr(CAPI_F_CAPI_GET_PKEY,
671 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
672 ERR_add_error_data(2, "magic=0x", magstr);
673 goto err;
674 }
675 rsa_modulus = (unsigned char *)(rp + 1);
676 rkey = RSA_new_method(eng);
677 if (!rkey)
678 goto memerr;
679
680 e = BN_new();
681 n = BN_new();
682
683 if (e == NULL || n == NULL) {
684 BN_free(e);
685 BN_free(n);
686 goto memerr;
687 }
688
689 RSA_set0_key(rkey, n, e, NULL);
690
691 if (!BN_set_word(e, rp->pubexp))
692 goto memerr;
693
694 rsa_modlen = rp->bitlen / 8;
695 if (!lend_tobn(n, rsa_modulus, rsa_modlen))
696 goto memerr;
697
698 RSA_set_ex_data(rkey, rsa_capi_idx, key);
699
700 if ((ret = EVP_PKEY_new()) == NULL)
701 goto memerr;
702
703 EVP_PKEY_assign_RSA(ret, rkey);
704 rkey = NULL;
705
706 # ifndef OPENSSL_NO_DSA
707 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
708 DSSPUBKEY *dp;
709 DWORD dsa_plen;
710 unsigned char *btmp;
711 BIGNUM *p, *q, *g, *pub_key;
712 dp = (DSSPUBKEY *) (bh + 1);
713 if (dp->magic != 0x31535344) {
714 char magstr[10];
715 BIO_snprintf(magstr, 10, "%lx", dp->magic);
716 CAPIerr(CAPI_F_CAPI_GET_PKEY,
717 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
718 ERR_add_error_data(2, "magic=0x", magstr);
719 goto err;
720 }
721 dsa_plen = dp->bitlen / 8;
722 btmp = (unsigned char *)(dp + 1);
723 dkey = DSA_new_method(eng);
724 if (!dkey)
725 goto memerr;
726 p = BN_new();
727 q = BN_new();
728 g = BN_new();
729 pub_key = BN_new();
730 if (p == NULL || q == NULL || g == NULL || pub_key == NULL) {
731 BN_free(p);
732 BN_free(q);
733 BN_free(g);
734 BN_free(pub_key);
735 goto memerr;
736 }
737 DSA_set0_pqg(dkey, p, q, g);
738 DSA_set0_key(dkey, pub_key, NULL);
739 if (!lend_tobn(p, btmp, dsa_plen))
740 goto memerr;
741 btmp += dsa_plen;
742 if (!lend_tobn(q, btmp, 20))
743 goto memerr;
744 btmp += 20;
745 if (!lend_tobn(g, btmp, dsa_plen))
746 goto memerr;
747 btmp += dsa_plen;
748 if (!lend_tobn(pub_key, btmp, dsa_plen))
749 goto memerr;
750 btmp += dsa_plen;
751
752 DSA_set_ex_data(dkey, dsa_capi_idx, key);
753
754 if ((ret = EVP_PKEY_new()) == NULL)
755 goto memerr;
756
757 EVP_PKEY_assign_DSA(ret, dkey);
758 dkey = NULL;
759 # endif
760 } else {
761 char algstr[10];
762 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
763 CAPIerr(CAPI_F_CAPI_GET_PKEY,
764 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
765 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
766 goto err;
767 }
768
769 err:
770 OPENSSL_free(pubkey);
771 if (!ret) {
772 RSA_free(rkey);
773 # ifndef OPENSSL_NO_DSA
774 DSA_free(dkey);
775 # endif
776 }
777
778 return ret;
779
780 memerr:
781 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
782 goto err;
783
784 }
785
786 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
787 UI_METHOD *ui_method, void *callback_data)
788 {
789 CAPI_CTX *ctx;
790 CAPI_KEY *key;
791 EVP_PKEY *ret;
792 ctx = ENGINE_get_ex_data(eng, capi_idx);
793
794 if (!ctx) {
795 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
796 return NULL;
797 }
798
799 key = capi_find_key(ctx, key_id);
800
801 if (!key)
802 return NULL;
803
804 ret = capi_get_pkey(eng, key);
805
806 if (!ret)
807 capi_free_key(key);
808 return ret;
809
810 }
811
812 /* CryptoAPI RSA operations */
813
814 int capi_rsa_priv_enc(int flen, const unsigned char *from,
815 unsigned char *to, RSA *rsa, int padding)
816 {
817 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
818 return -1;
819 }
820
821 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
822 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
823 {
824 ALG_ID alg;
825 HCRYPTHASH hash;
826 DWORD slen;
827 unsigned int i;
828 int ret = -1;
829 CAPI_KEY *capi_key;
830 CAPI_CTX *ctx;
831
832 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
833
834 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
835
836 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
837 if (!capi_key) {
838 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
839 return -1;
840 }
841 /* Convert the signature type to a CryptoAPI algorithm ID */
842 switch (dtype) {
843 case NID_sha256:
844 alg = CALG_SHA_256;
845 break;
846
847 case NID_sha384:
848 alg = CALG_SHA_384;
849 break;
850
851 case NID_sha512:
852 alg = CALG_SHA_512;
853 break;
854
855 case NID_sha1:
856 alg = CALG_SHA1;
857 break;
858
859 case NID_md5:
860 alg = CALG_MD5;
861 break;
862
863 case NID_md5_sha1:
864 alg = CALG_SSL3_SHAMD5;
865 break;
866 default:
867 {
868 char algstr[10];
869 BIO_snprintf(algstr, 10, "%x", dtype);
870 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
871 ERR_add_error_data(2, "NID=0x", algstr);
872 return -1;
873 }
874 }
875
876 /* Create the hash object */
877 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
878 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
879 capi_addlasterror();
880 return -1;
881 }
882 /* Set the hash value to the value passed */
883
884 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
885 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
886 capi_addlasterror();
887 goto err;
888 }
889
890 /* Finally sign it */
891 slen = RSA_size(rsa);
892 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
893 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
894 capi_addlasterror();
895 goto err;
896 } else {
897 ret = 1;
898 /* Inplace byte reversal of signature */
899 for (i = 0; i < slen / 2; i++) {
900 unsigned char c;
901 c = sigret[i];
902 sigret[i] = sigret[slen - i - 1];
903 sigret[slen - i - 1] = c;
904 }
905 *siglen = slen;
906 }
907
908 /* Now cleanup */
909
910 err:
911 CryptDestroyHash(hash);
912
913 return ret;
914 }
915
916 int capi_rsa_priv_dec(int flen, const unsigned char *from,
917 unsigned char *to, RSA *rsa, int padding)
918 {
919 int i;
920 unsigned char *tmpbuf;
921 CAPI_KEY *capi_key;
922 CAPI_CTX *ctx;
923 DWORD flags = 0;
924 DWORD dlen;
925
926 if (flen <= 0)
927 return flen;
928
929 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
930
931 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
932
933 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
934 if (!capi_key) {
935 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
936 return -1;
937 }
938
939 switch (padding) {
940 case RSA_PKCS1_PADDING:
941 /* Nothing to do */
942 break;
943 #ifdef CRYPT_DECRYPT_RSA_NO_PADDING_CHECK
944 case RSA_NO_PADDING:
945 flags = CRYPT_DECRYPT_RSA_NO_PADDING_CHECK;
946 break;
947 #endif
948 default:
949 {
950 char errstr[10];
951 BIO_snprintf(errstr, 10, "%d", padding);
952 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
953 ERR_add_error_data(2, "padding=", errstr);
954 return -1;
955 }
956 }
957
958 /* Create temp reverse order version of input */
959 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) {
960 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
961 return -1;
962 }
963 for (i = 0; i < flen; i++)
964 tmpbuf[flen - i - 1] = from[i];
965
966 /* Finally decrypt it */
967 dlen = flen;
968 if (!CryptDecrypt(capi_key->key, 0, TRUE, flags, tmpbuf, &dlen)) {
969 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
970 capi_addlasterror();
971 OPENSSL_cleanse(tmpbuf, dlen);
972 OPENSSL_free(tmpbuf);
973 return -1;
974 } else {
975 memcpy(to, tmpbuf, (flen = (int)dlen));
976 }
977 OPENSSL_cleanse(tmpbuf, flen);
978 OPENSSL_free(tmpbuf);
979
980 return flen;
981 }
982
983 static int capi_rsa_free(RSA *rsa)
984 {
985 CAPI_KEY *capi_key;
986 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
987 capi_free_key(capi_key);
988 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
989 return 1;
990 }
991
992 # ifndef OPENSSL_NO_DSA
993 /* CryptoAPI DSA operations */
994
995 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
996 DSA *dsa)
997 {
998 HCRYPTHASH hash;
999 DWORD slen;
1000 DSA_SIG *ret = NULL;
1001 CAPI_KEY *capi_key;
1002 CAPI_CTX *ctx;
1003 unsigned char csigbuf[40];
1004
1005 ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx);
1006
1007 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
1008
1009 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1010
1011 if (!capi_key) {
1012 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
1013 return NULL;
1014 }
1015
1016 if (dlen != 20) {
1017 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
1018 return NULL;
1019 }
1020
1021 /* Create the hash object */
1022 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
1023 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
1024 capi_addlasterror();
1025 return NULL;
1026 }
1027
1028 /* Set the hash value to the value passed */
1029 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
1030 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
1031 capi_addlasterror();
1032 goto err;
1033 }
1034
1035 /* Finally sign it */
1036 slen = sizeof(csigbuf);
1037 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1038 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1039 capi_addlasterror();
1040 goto err;
1041 } else {
1042 BIGNUM *r = BN_new(), *s = BN_new();
1043
1044 if (r == NULL || s == NULL
1045 || !lend_tobn(r, csigbuf, 20)
1046 || !lend_tobn(s, csigbuf + 20, 20)
1047 || (ret = DSA_SIG_new()) == NULL) {
1048 BN_free(r); /* BN_free checks for BIGNUM * being NULL */
1049 BN_free(s);
1050 goto err;
1051 }
1052 DSA_SIG_set0(ret, r, s);
1053 }
1054
1055 /* Now cleanup */
1056
1057 err:
1058 OPENSSL_cleanse(csigbuf, 40);
1059 CryptDestroyHash(hash);
1060 return ret;
1061 }
1062
1063 static int capi_dsa_free(DSA *dsa)
1064 {
1065 CAPI_KEY *capi_key;
1066 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1067 capi_free_key(capi_key);
1068 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1069 return 1;
1070 }
1071 # endif
1072
1073 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format,
1074 va_list argptr)
1075 {
1076 BIO *out;
1077
1078 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1079 return;
1080 out = BIO_new_file(ctx->debug_file, "a+");
1081 if (out == NULL) {
1082 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1083 return;
1084 }
1085 BIO_vprintf(out, format, argptr);
1086 BIO_free(out);
1087 }
1088
1089 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1090 {
1091 va_list args;
1092 va_start(args, format);
1093 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1094 va_end(args);
1095 }
1096
1097 static void capi_addlasterror(void)
1098 {
1099 capi_adderror(GetLastError());
1100 }
1101
1102 static void capi_adderror(DWORD err)
1103 {
1104 char errstr[10];
1105 BIO_snprintf(errstr, 10, "%lX", err);
1106 ERR_add_error_data(2, "Error code= 0x", errstr);
1107 }
1108
1109 static char *wide_to_asc(LPCWSTR wstr)
1110 {
1111 char *str;
1112 int len_0, sz;
1113
1114 if (!wstr)
1115 return NULL;
1116 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1117 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1118 if (!sz) {
1119 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1120 return NULL;
1121 }
1122 str = OPENSSL_malloc(sz);
1123 if (str == NULL) {
1124 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1125 return NULL;
1126 }
1127 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1128 OPENSSL_free(str);
1129 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1130 return NULL;
1131 }
1132 return str;
1133 }
1134
1135 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype,
1136 DWORD idx)
1137 {
1138 DWORD len, err;
1139 LPTSTR name;
1140 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1141 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1142 err = GetLastError();
1143 if (err == ERROR_NO_MORE_ITEMS)
1144 return 2;
1145 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1146 capi_adderror(err);
1147 return 0;
1148 }
1149 name = OPENSSL_malloc(len);
1150 if (name == NULL) {
1151 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1152 return 0;
1153 }
1154 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1155 err = GetLastError();
1156 OPENSSL_free(name);
1157 if (err == ERROR_NO_MORE_ITEMS)
1158 return 2;
1159 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1160 capi_adderror(err);
1161 return 0;
1162 }
1163 if (sizeof(TCHAR) != sizeof(char)) {
1164 *pname = wide_to_asc((WCHAR *)name);
1165 OPENSSL_free(name);
1166 if (*pname == NULL)
1167 return 0;
1168 } else {
1169 *pname = (char *)name;
1170 }
1171 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1172 *ptype);
1173
1174 return 1;
1175 }
1176
1177 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1178 {
1179 DWORD idx, ptype;
1180 int ret;
1181 LPSTR provname = NULL;
1182 CAPI_trace(ctx, "capi_list_providers\n");
1183 BIO_printf(out, "Available CSPs:\n");
1184 for (idx = 0;; idx++) {
1185 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1186 if (ret == 2)
1187 break;
1188 if (ret == 0)
1189 break;
1190 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
1191 OPENSSL_free(provname);
1192 }
1193 return 1;
1194 }
1195
1196 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1197 {
1198 int ret = 1;
1199 HCRYPTPROV hprov;
1200 DWORD err, idx, flags, buflen = 0, clen;
1201 LPSTR cname;
1202 LPWSTR cspname = NULL;
1203
1204 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1205 ctx->csptype);
1206 if (ctx->cspname != NULL) {
1207 if ((clen = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1208 NULL, 0))) {
1209 cspname = alloca(clen * sizeof(WCHAR));
1210 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1211 clen);
1212 }
1213 if (cspname == NULL) {
1214 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1215 capi_addlasterror();
1216 return 0;
1217 }
1218 }
1219 if (!CryptAcquireContextW(&hprov, NULL, cspname, ctx->csptype,
1220 CRYPT_VERIFYCONTEXT)) {
1221 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1222 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1223 capi_addlasterror();
1224 return 0;
1225 }
1226 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen,
1227 CRYPT_FIRST)) {
1228 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1229 capi_addlasterror();
1230 CryptReleaseContext(hprov, 0);
1231 return 0;
1232 }
1233 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1234 if (buflen == 0)
1235 buflen = 1024;
1236 cname = OPENSSL_malloc(buflen);
1237 if (cname == NULL) {
1238 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1239 goto err;
1240 }
1241
1242 for (idx = 0;; idx++) {
1243 clen = buflen;
1244 cname[0] = 0;
1245
1246 if (idx == 0)
1247 flags = CRYPT_FIRST;
1248 else
1249 flags = 0;
1250 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, (BYTE *)cname,
1251 &clen, flags)) {
1252 err = GetLastError();
1253 if (err == ERROR_NO_MORE_ITEMS)
1254 goto done;
1255 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1256 capi_adderror(err);
1257 goto err;
1258 }
1259 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1260 cname, clen, idx, flags);
1261 if (!cname[0] && (clen == buflen)) {
1262 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1263 goto done;
1264 }
1265 BIO_printf(out, "%lu. %s\n", idx, cname);
1266 }
1267 err:
1268
1269 ret = 0;
1270
1271 done:
1272 OPENSSL_free(cname);
1273 CryptReleaseContext(hprov, 0);
1274
1275 return ret;
1276 }
1277
1278 static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx,
1279 PCCERT_CONTEXT cert)
1280 {
1281 DWORD len;
1282 CRYPT_KEY_PROV_INFO *pinfo;
1283
1284 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1285 NULL, &len))
1286 return NULL;
1287 pinfo = OPENSSL_malloc(len);
1288 if (pinfo == NULL) {
1289 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1290 return NULL;
1291 }
1292 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1293 pinfo, &len)) {
1294 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1295 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1296 capi_addlasterror();
1297 OPENSSL_free(pinfo);
1298 return NULL;
1299 }
1300 return pinfo;
1301 }
1302
1303 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out,
1304 CRYPT_KEY_PROV_INFO *pinfo)
1305 {
1306 char *provname = NULL, *contname = NULL;
1307
1308 if (pinfo == NULL) {
1309 BIO_printf(out, " No Private Key\n");
1310 return;
1311 }
1312 provname = wide_to_asc(pinfo->pwszProvName);
1313 contname = wide_to_asc(pinfo->pwszContainerName);
1314 if (provname == NULL || contname == NULL)
1315 goto err;
1316
1317 BIO_printf(out, " Private Key Info:\n");
1318 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
1319 pinfo->dwProvType);
1320 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
1321 pinfo->dwKeySpec);
1322 err:
1323 OPENSSL_free(provname);
1324 OPENSSL_free(contname);
1325 }
1326
1327 static char *capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1328 {
1329 LPWSTR wfname;
1330 DWORD dlen;
1331
1332 CAPI_trace(ctx, "capi_cert_get_fname\n");
1333 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1334 NULL, &dlen))
1335 return NULL;
1336 wfname = OPENSSL_malloc(dlen);
1337 if (wfname == NULL)
1338 return NULL;
1339 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1340 wfname, &dlen)) {
1341 char *fname = wide_to_asc(wfname);
1342 OPENSSL_free(wfname);
1343 return fname;
1344 }
1345 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1346 capi_addlasterror();
1347
1348 OPENSSL_free(wfname);
1349 return NULL;
1350 }
1351
1352 static void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1353 {
1354 X509 *x;
1355 const unsigned char *p;
1356 unsigned long flags = ctx->dump_flags;
1357 if (flags & CAPI_DMP_FNAME) {
1358 char *fname;
1359 fname = capi_cert_get_fname(ctx, cert);
1360 if (fname) {
1361 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1362 OPENSSL_free(fname);
1363 } else {
1364 BIO_printf(out, " <No Friendly Name>\n");
1365 }
1366 }
1367
1368 p = cert->pbCertEncoded;
1369 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1370 if (!x)
1371 BIO_printf(out, " <Can't parse certificate>\n");
1372 if (flags & CAPI_DMP_SUMMARY) {
1373 BIO_printf(out, " Subject: ");
1374 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1375 BIO_printf(out, "\n Issuer: ");
1376 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1377 BIO_printf(out, "\n");
1378 }
1379 if (flags & CAPI_DMP_FULL)
1380 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1381
1382 if (flags & CAPI_DMP_PKEYINFO) {
1383 CRYPT_KEY_PROV_INFO *pinfo;
1384 pinfo = capi_get_prov_info(ctx, cert);
1385 capi_dump_prov_info(ctx, out, pinfo);
1386 OPENSSL_free(pinfo);
1387 }
1388
1389 if (flags & CAPI_DMP_PEM)
1390 PEM_write_bio_X509(out, x);
1391 X509_free(x);
1392 }
1393
1394 static HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1395 {
1396 HCERTSTORE hstore;
1397
1398 if (!storename)
1399 storename = ctx->storename;
1400 if (!storename)
1401 storename = "MY";
1402 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1403
1404 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1405 ctx->store_flags, storename);
1406 if (!hstore) {
1407 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1408 capi_addlasterror();
1409 }
1410 return hstore;
1411 }
1412
1413 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1414 {
1415 char *storename;
1416 int idx;
1417 int ret = 1;
1418 HCERTSTORE hstore;
1419 PCCERT_CONTEXT cert = NULL;
1420
1421 storename = ctx->storename;
1422 if (!storename)
1423 storename = "MY";
1424 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1425
1426 hstore = capi_open_store(ctx, storename);
1427 if (!hstore)
1428 return 0;
1429 if (id) {
1430 cert = capi_find_cert(ctx, id, hstore);
1431 if (!cert) {
1432 ret = 0;
1433 goto err;
1434 }
1435 capi_dump_cert(ctx, out, cert);
1436 CertFreeCertificateContext(cert);
1437 } else {
1438 for (idx = 0;; idx++) {
1439 cert = CertEnumCertificatesInStore(hstore, cert);
1440 if (!cert)
1441 break;
1442 BIO_printf(out, "Certificate %d\n", idx);
1443 capi_dump_cert(ctx, out, cert);
1444 }
1445 }
1446 err:
1447 CertCloseStore(hstore, 0);
1448 return ret;
1449 }
1450
1451 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
1452 HCERTSTORE hstore)
1453 {
1454 PCCERT_CONTEXT cert = NULL;
1455 char *fname = NULL;
1456 int match;
1457 switch (ctx->lookup_method) {
1458 case CAPI_LU_SUBSTR:
1459 return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0,
1460 CERT_FIND_SUBJECT_STR_A, id, NULL);
1461 case CAPI_LU_FNAME:
1462 for (;;) {
1463 cert = CertEnumCertificatesInStore(hstore, cert);
1464 if (!cert)
1465 return NULL;
1466 fname = capi_cert_get_fname(ctx, cert);
1467 if (fname) {
1468 if (strcmp(fname, id))
1469 match = 0;
1470 else
1471 match = 1;
1472 OPENSSL_free(fname);
1473 if (match)
1474 return cert;
1475 }
1476 }
1477 default:
1478 return NULL;
1479 }
1480 }
1481
1482 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const WCHAR *contname,
1483 const WCHAR *provname, DWORD ptype,
1484 DWORD keyspec)
1485 {
1486 DWORD dwFlags = 0;
1487 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1488
1489 if (key == NULL)
1490 return NULL;
1491 /* If PROV_RSA_AES supported use it instead */
1492 if (ptype == PROV_RSA_FULL && use_aes_csp &&
1493 wcscmp(provname, rsa_enh_cspname) == 0) {
1494 provname = rsa_aes_cspname;
1495 ptype = PROV_RSA_AES;
1496 }
1497 if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1498 /*
1499 * above 'if' is [complementary] copy from CAPI_trace and serves
1500 * as optimization to minimize [below] malloc-ations
1501 */
1502 char *_contname = wide_to_asc(contname);
1503 char *_provname = wide_to_asc(provname);
1504
1505 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1506 _contname, _provname, ptype);
1507 OPENSSL_free(_provname);
1508 OPENSSL_free(_contname);
1509 }
1510 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1511 dwFlags = CRYPT_MACHINE_KEYSET;
1512 if (!CryptAcquireContextW(&key->hprov, contname, provname, ptype,
1513 dwFlags)) {
1514 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1515 capi_addlasterror();
1516 goto err;
1517 }
1518 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1519 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1520 capi_addlasterror();
1521 CryptReleaseContext(key->hprov, 0);
1522 goto err;
1523 }
1524 key->keyspec = keyspec;
1525 key->pcert = NULL;
1526 return key;
1527
1528 err:
1529 OPENSSL_free(key);
1530 return NULL;
1531 }
1532
1533 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1534 {
1535 CAPI_KEY *key = NULL;
1536 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1537
1538 pinfo = capi_get_prov_info(ctx, cert);
1539
1540 if (pinfo != NULL)
1541 key = capi_get_key(ctx, pinfo->pwszContainerName, pinfo->pwszProvName,
1542 pinfo->dwProvType, pinfo->dwKeySpec);
1543
1544 OPENSSL_free(pinfo);
1545 return key;
1546 }
1547
1548 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1549 {
1550 PCCERT_CONTEXT cert;
1551 HCERTSTORE hstore;
1552 CAPI_KEY *key = NULL;
1553
1554 switch (ctx->lookup_method) {
1555 case CAPI_LU_SUBSTR:
1556 case CAPI_LU_FNAME:
1557 hstore = capi_open_store(ctx, NULL);
1558 if (!hstore)
1559 return NULL;
1560 cert = capi_find_cert(ctx, id, hstore);
1561 if (cert) {
1562 key = capi_get_cert_key(ctx, cert);
1563 CertFreeCertificateContext(cert);
1564 }
1565 CertCloseStore(hstore, 0);
1566 break;
1567
1568 case CAPI_LU_CONTNAME:
1569 {
1570 WCHAR *contname, *provname;
1571 DWORD len;
1572
1573 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1574 (contname = alloca(len * sizeof(WCHAR)),
1575 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1576 (len = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1577 NULL, 0)) &&
1578 (provname = alloca(len * sizeof(WCHAR)),
1579 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1580 provname, len)))
1581 key = capi_get_key(ctx, contname, provname,
1582 ctx->csptype, ctx->keytype);
1583 }
1584 break;
1585 }
1586
1587 return key;
1588 }
1589
1590 void capi_free_key(CAPI_KEY *key)
1591 {
1592 if (!key)
1593 return;
1594 CryptDestroyKey(key->key);
1595 CryptReleaseContext(key->hprov, 0);
1596 if (key->pcert)
1597 CertFreeCertificateContext(key->pcert);
1598 OPENSSL_free(key);
1599 }
1600
1601 /* Initialize a CAPI_CTX structure */
1602
1603 static CAPI_CTX *capi_ctx_new(void)
1604 {
1605 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
1606
1607 if (ctx == NULL) {
1608 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1609 return NULL;
1610 }
1611 ctx->csptype = PROV_RSA_FULL;
1612 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1613 ctx->keytype = AT_KEYEXCHANGE;
1614 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1615 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1616 ctx->lookup_method = CAPI_LU_SUBSTR;
1617 ctx->client_cert_select = cert_select_simple;
1618 return ctx;
1619 }
1620
1621 static void capi_ctx_free(CAPI_CTX *ctx)
1622 {
1623 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1624 if (!ctx)
1625 return;
1626 OPENSSL_free(ctx->cspname);
1627 OPENSSL_free(ctx->debug_file);
1628 OPENSSL_free(ctx->storename);
1629 OPENSSL_free(ctx->ssl_client_store);
1630 OPENSSL_free(ctx);
1631 }
1632
1633 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
1634 int check)
1635 {
1636 LPSTR tmpcspname;
1637
1638 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1639 if (check) {
1640 HCRYPTPROV hprov;
1641 LPWSTR name = NULL;
1642 DWORD len;
1643
1644 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1645 name = alloca(len * sizeof(WCHAR));
1646 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1647 }
1648 if (name == NULL || !CryptAcquireContextW(&hprov, NULL, name, type,
1649 CRYPT_VERIFYCONTEXT)) {
1650 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1651 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1652 capi_addlasterror();
1653 return 0;
1654 }
1655 CryptReleaseContext(hprov, 0);
1656 }
1657 tmpcspname = OPENSSL_strdup(pname);
1658 if (tmpcspname == NULL) {
1659 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, ERR_R_MALLOC_FAILURE);
1660 return 0;
1661 }
1662 OPENSSL_free(ctx->cspname);
1663 ctx->cspname = tmpcspname;
1664 ctx->csptype = type;
1665 return 1;
1666 }
1667
1668 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1669 {
1670 LPSTR pname;
1671 DWORD type;
1672 int res;
1673 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1674 return 0;
1675 res = capi_ctx_set_provname(ctx, pname, type, 0);
1676 OPENSSL_free(pname);
1677 return res;
1678 }
1679
1680 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1681 {
1682 int i;
1683 X509_NAME *nm;
1684 /* Special case: empty list: match anything */
1685 if (sk_X509_NAME_num(ca_dn) <= 0)
1686 return 1;
1687 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1688 nm = sk_X509_NAME_value(ca_dn, i);
1689 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1690 return 1;
1691 }
1692 return 0;
1693 }
1694
1695 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1696 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1697 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1698 UI_METHOD *ui_method,
1699 void *callback_data)
1700 {
1701 STACK_OF(X509) *certs = NULL;
1702 X509 *x;
1703 char *storename;
1704 const unsigned char *p;
1705 int i, client_cert_idx;
1706 HCERTSTORE hstore;
1707 PCCERT_CONTEXT cert = NULL, excert = NULL;
1708 CAPI_CTX *ctx;
1709 CAPI_KEY *key;
1710 ctx = ENGINE_get_ex_data(e, capi_idx);
1711
1712 *pcert = NULL;
1713 *pkey = NULL;
1714
1715 storename = ctx->ssl_client_store;
1716 if (!storename)
1717 storename = "MY";
1718
1719 hstore = capi_open_store(ctx, storename);
1720 if (!hstore)
1721 return 0;
1722 /* Enumerate all certificates collect any matches */
1723 for (i = 0;; i++) {
1724 cert = CertEnumCertificatesInStore(hstore, cert);
1725 if (!cert)
1726 break;
1727 p = cert->pbCertEncoded;
1728 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1729 if (!x) {
1730 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1731 continue;
1732 }
1733 if (cert_issuer_match(ca_dn, x)
1734 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1735 key = capi_get_cert_key(ctx, cert);
1736 if (!key) {
1737 X509_free(x);
1738 continue;
1739 }
1740 /*
1741 * Match found: attach extra data to it so we can retrieve the
1742 * key later.
1743 */
1744 excert = CertDuplicateCertificateContext(cert);
1745 key->pcert = excert;
1746 X509_set_ex_data(x, cert_capi_idx, key);
1747
1748 if (!certs)
1749 certs = sk_X509_new_null();
1750
1751 sk_X509_push(certs, x);
1752 } else {
1753 X509_free(x);
1754 }
1755 }
1756
1757 if (cert)
1758 CertFreeCertificateContext(cert);
1759 if (hstore)
1760 CertCloseStore(hstore, 0);
1761
1762 if (!certs)
1763 return 0;
1764
1765 /* Select the appropriate certificate */
1766
1767 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1768
1769 /* Set the selected certificate and free the rest */
1770
1771 for (i = 0; i < sk_X509_num(certs); i++) {
1772 x = sk_X509_value(certs, i);
1773 if (i == client_cert_idx)
1774 *pcert = x;
1775 else {
1776 key = X509_get_ex_data(x, cert_capi_idx);
1777 capi_free_key(key);
1778 X509_free(x);
1779 }
1780 }
1781
1782 sk_X509_free(certs);
1783
1784 if (*pcert == NULL)
1785 return 0;
1786
1787 /* Setup key for selected certificate */
1788
1789 key = X509_get_ex_data(*pcert, cert_capi_idx);
1790 *pkey = capi_get_pkey(e, key);
1791 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1792
1793 return 1;
1794
1795 }
1796
1797 /* Simple client cert selection function: always select first */
1798
1799 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1800 {
1801 return 0;
1802 }
1803
1804 # ifdef OPENSSL_CAPIENG_DIALOG
1805
1806 /*
1807 * More complex cert selection function, using standard function
1808 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1809 */
1810
1811 /*
1812 * Definitions which are in cryptuiapi.h but this is not present in older
1813 * versions of headers.
1814 */
1815
1816 # ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1817 # define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1818 # define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1819 # endif
1820
1821 # define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1822 # define dlg_prompt L"Select a certificate to use for authentication"
1823 # define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1824 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1825
1826 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1827 {
1828 X509 *x;
1829 HCERTSTORE dstore;
1830 PCCERT_CONTEXT cert;
1831 CAPI_CTX *ctx;
1832 CAPI_KEY *key;
1833 HWND hwnd;
1834 int i, idx = -1;
1835 if (sk_X509_num(certs) == 1)
1836 return 0;
1837 ctx = ENGINE_get_ex_data(e, capi_idx);
1838 /* Create an in memory store of certificates */
1839 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1840 CERT_STORE_CREATE_NEW_FLAG, NULL);
1841 if (!dstore) {
1842 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1843 capi_addlasterror();
1844 goto err;
1845 }
1846 /* Add all certificates to store */
1847 for (i = 0; i < sk_X509_num(certs); i++) {
1848 x = sk_X509_value(certs, i);
1849 key = X509_get_ex_data(x, cert_capi_idx);
1850
1851 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1852 CERT_STORE_ADD_NEW, NULL)) {
1853 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1854 capi_addlasterror();
1855 goto err;
1856 }
1857
1858 }
1859 hwnd = GetForegroundWindow();
1860 if (!hwnd)
1861 hwnd = GetActiveWindow();
1862 if (!hwnd && ctx->getconswindow)
1863 hwnd = ctx->getconswindow();
1864 /* Call dialog to select one */
1865 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1866 dlg_columns, 0, NULL);
1867
1868 /* Find matching cert from list */
1869 if (cert) {
1870 for (i = 0; i < sk_X509_num(certs); i++) {
1871 x = sk_X509_value(certs, i);
1872 key = X509_get_ex_data(x, cert_capi_idx);
1873 if (CertCompareCertificate
1874 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1875 key->pcert->pCertInfo)) {
1876 idx = i;
1877 break;
1878 }
1879 }
1880 }
1881
1882 err:
1883 if (dstore)
1884 CertCloseStore(dstore, 0);
1885 return idx;
1886
1887 }
1888 # endif
1889
1890 #else /* !__COMPILE_CAPIENG */
1891 # include <openssl/engine.h>
1892 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
1893 OPENSSL_EXPORT
1894 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1895 OPENSSL_EXPORT
1896 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1897 {
1898 return 0;
1899 }
1900
1901 IMPLEMENT_DYNAMIC_CHECK_FN()
1902 # else
1903 void engine_load_capi_int(void);
1904 void engine_load_capi_int(void)
1905 {
1906 }
1907 # endif
1908 #endif
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