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source: vbox/trunk/src/libs/openssl-3.1.7/engines/e_capi.c@ 106165

最後變更 在這個檔案從106165是 104078,由 vboxsync 提交於 8 月 前

openssl-3.1.5: Applied and adjusted our OpenSSL changes to 3.1.4. bugref:10638
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1/*
2 * Copyright 2008-2021 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/* We need to use some deprecated APIs */
11#define OPENSSL_SUPPRESS_DEPRECATED
12
13#ifdef _WIN32
14# ifndef _WIN32_WINNT
15# define _WIN32_WINNT 0x0400
16# endif
17# include <windows.h>
18# include <wincrypt.h>
19
20# include <stdio.h>
21# include <string.h>
22# include <stdlib.h>
23# include <malloc.h>
24# ifndef alloca
25# define alloca _alloca
26# endif
27
28# include <openssl/crypto.h>
29
30# ifndef OPENSSL_NO_CAPIENG
31
32# include <openssl/buffer.h>
33# include <openssl/bn.h>
34# include <openssl/rsa.h>
35# include <openssl/dsa.h>
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
105static const char *engine_capi_id = "capi";
106static const char *engine_capi_name = "CryptoAPI ENGINE";
107
108typedef struct CAPI_CTX_st CAPI_CTX;
109typedef struct CAPI_KEY_st CAPI_KEY;
110
111static void capi_addlasterror(void);
112static void capi_adderror(DWORD err);
113
114static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
115
116static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
117static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
118int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
119void capi_free_key(CAPI_KEY *key);
120
121static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
122 HCERTSTORE hstore);
123
124CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
125
126static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
127 UI_METHOD *ui_method, void *callback_data);
128static 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);
131static int capi_rsa_priv_enc(int flen, const unsigned char *from,
132 unsigned char *to, RSA *rsa, int padding);
133static int capi_rsa_priv_dec(int flen, const unsigned char *from,
134 unsigned char *to, RSA *rsa, int padding);
135static int capi_rsa_free(RSA *rsa);
136
137# ifndef OPENSSL_NO_DSA
138static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
139 DSA *dsa);
140static int capi_dsa_free(DSA *dsa);
141# endif
142
143static 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
149static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
150# ifdef OPENSSL_CAPIENG_DIALOG
151static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
152# endif
153
154void engine_load_capi_int(void);
155
156typedef PCCERT_CONTEXT(WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
157 LPCWSTR, DWORD, DWORD, void *);
158typedef 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
168struct 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
198static CAPI_CTX *capi_ctx_new(void);
199static void capi_ctx_free(CAPI_CTX *ctx);
200static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
201 int check);
202static 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
219static 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
281static int capi_idx = -1;
282static int rsa_capi_idx = -1;
283static int dsa_capi_idx = -1;
284static int cert_capi_idx = -1;
285
286static 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
398static RSA_METHOD *capi_rsa_method = NULL;
399# ifndef OPENSSL_NO_DSA
400static DSA_METHOD *capi_dsa_method = NULL;
401# endif
402
403static int use_aes_csp = 0;
404static const WCHAR rsa_aes_cspname[] =
405 L"Microsoft Enhanced RSA and AES Cryptographic Provider";
406static const WCHAR rsa_enh_cspname[] =
407 L"Microsoft Enhanced Cryptographic Provider v1.0";
408
409static 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
498static 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
510static 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
525struct CAPI_KEY_st {
526 /* Associated certificate context (if any) */
527 PCCERT_CONTEXT pcert;
528 HCRYPTPROV hprov;
529 HCRYPTKEY key;
530 DWORD keyspec;
531};
532
533static 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
573static 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
582IMPLEMENT_DYNAMIC_CHECK_FN()
583IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
584# else
585static 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
597void engine_load_capi_int(void)
598{
599 /* Copied from eng_[openssl|dyn].c */
600 ENGINE *toadd = engine_capi();
601 if (!toadd)
602 return;
603 ERR_set_mark();
604 ENGINE_add(toadd);
605 /*
606 * If the "add" worked, it gets a structural reference. So either way, we
607 * release our just-created reference.
608 */
609 ENGINE_free(toadd);
610 /*
611 * If the "add" didn't work, it was probably a conflict because it was
612 * already added (eg. someone calling ENGINE_load_blah then calling
613 * ENGINE_load_builtin_engines() perhaps).
614 */
615 ERR_pop_to_mark();
616}
617# endif
618
619static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
620{
621 int i;
622 /*
623 * Reverse buffer in place: since this is a keyblob structure that will
624 * be freed up after conversion anyway it doesn't matter if we change
625 * it.
626 */
627 for (i = 0; i < binlen / 2; i++) {
628 unsigned char c;
629 c = bin[i];
630 bin[i] = bin[binlen - i - 1];
631 bin[binlen - i - 1] = c;
632 }
633
634 if (!BN_bin2bn(bin, binlen, bn))
635 return 0;
636 return 1;
637}
638
639/* Given a CAPI_KEY get an EVP_PKEY structure */
640
641static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
642{
643 unsigned char *pubkey = NULL;
644 DWORD len;
645 BLOBHEADER *bh;
646 RSA *rkey = NULL;
647 DSA *dkey = NULL;
648 EVP_PKEY *ret = NULL;
649 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
650 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
651 capi_addlasterror();
652 return NULL;
653 }
654
655 pubkey = OPENSSL_malloc(len);
656
657 if (pubkey == NULL)
658 goto memerr;
659
660 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
661 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
662 capi_addlasterror();
663 goto err;
664 }
665
666 bh = (BLOBHEADER *) pubkey;
667 if (bh->bType != PUBLICKEYBLOB) {
668 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
669 goto err;
670 }
671 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
672 RSAPUBKEY *rp;
673 DWORD rsa_modlen;
674 BIGNUM *e = NULL, *n = NULL;
675 unsigned char *rsa_modulus;
676 rp = (RSAPUBKEY *) (bh + 1);
677 if (rp->magic != 0x31415352) {
678 char magstr[10];
679 BIO_snprintf(magstr, 10, "%lx", rp->magic);
680 CAPIerr(CAPI_F_CAPI_GET_PKEY,
681 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
682 ERR_add_error_data(2, "magic=0x", magstr);
683 goto err;
684 }
685 rsa_modulus = (unsigned char *)(rp + 1);
686 rkey = RSA_new_method(eng);
687 if (!rkey)
688 goto memerr;
689
690 e = BN_new();
691 n = BN_new();
692
693 if (e == NULL || n == NULL) {
694 BN_free(e);
695 BN_free(n);
696 goto memerr;
697 }
698
699 RSA_set0_key(rkey, n, e, NULL);
700
701 if (!BN_set_word(e, rp->pubexp))
702 goto memerr;
703
704 rsa_modlen = rp->bitlen / 8;
705 if (!lend_tobn(n, rsa_modulus, rsa_modlen))
706 goto memerr;
707
708 RSA_set_ex_data(rkey, rsa_capi_idx, key);
709
710 if ((ret = EVP_PKEY_new()) == NULL)
711 goto memerr;
712
713 EVP_PKEY_assign_RSA(ret, rkey);
714 rkey = NULL;
715
716# ifndef OPENSSL_NO_DSA
717 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
718 DSSPUBKEY *dp;
719 DWORD dsa_plen;
720 unsigned char *btmp;
721 BIGNUM *p, *q, *g, *pub_key;
722 dp = (DSSPUBKEY *) (bh + 1);
723 if (dp->magic != 0x31535344) {
724 char magstr[10];
725 BIO_snprintf(magstr, 10, "%lx", dp->magic);
726 CAPIerr(CAPI_F_CAPI_GET_PKEY,
727 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
728 ERR_add_error_data(2, "magic=0x", magstr);
729 goto err;
730 }
731 dsa_plen = dp->bitlen / 8;
732 btmp = (unsigned char *)(dp + 1);
733 dkey = DSA_new_method(eng);
734 if (!dkey)
735 goto memerr;
736 p = BN_new();
737 q = BN_new();
738 g = BN_new();
739 pub_key = BN_new();
740 if (p == NULL || q == NULL || g == NULL || pub_key == NULL) {
741 BN_free(p);
742 BN_free(q);
743 BN_free(g);
744 BN_free(pub_key);
745 goto memerr;
746 }
747 DSA_set0_pqg(dkey, p, q, g);
748 DSA_set0_key(dkey, pub_key, NULL);
749 if (!lend_tobn(p, btmp, dsa_plen))
750 goto memerr;
751 btmp += dsa_plen;
752 if (!lend_tobn(q, btmp, 20))
753 goto memerr;
754 btmp += 20;
755 if (!lend_tobn(g, btmp, dsa_plen))
756 goto memerr;
757 btmp += dsa_plen;
758 if (!lend_tobn(pub_key, btmp, dsa_plen))
759 goto memerr;
760 btmp += dsa_plen;
761
762 DSA_set_ex_data(dkey, dsa_capi_idx, key);
763
764 if ((ret = EVP_PKEY_new()) == NULL)
765 goto memerr;
766
767 EVP_PKEY_assign_DSA(ret, dkey);
768 dkey = NULL;
769# endif
770 } else {
771 char algstr[10];
772 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
773 CAPIerr(CAPI_F_CAPI_GET_PKEY,
774 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
775 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
776 goto err;
777 }
778
779 err:
780 OPENSSL_free(pubkey);
781 if (!ret) {
782 RSA_free(rkey);
783# ifndef OPENSSL_NO_DSA
784 DSA_free(dkey);
785# endif
786 }
787
788 return ret;
789
790 memerr:
791 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
792 goto err;
793
794}
795
796static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
797 UI_METHOD *ui_method, void *callback_data)
798{
799 CAPI_CTX *ctx;
800 CAPI_KEY *key;
801 EVP_PKEY *ret;
802 ctx = ENGINE_get_ex_data(eng, capi_idx);
803
804 if (!ctx) {
805 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
806 return NULL;
807 }
808
809 key = capi_find_key(ctx, key_id);
810
811 if (!key)
812 return NULL;
813
814 ret = capi_get_pkey(eng, key);
815
816 if (!ret)
817 capi_free_key(key);
818 return ret;
819
820}
821
822/* CryptoAPI RSA operations */
823
824int capi_rsa_priv_enc(int flen, const unsigned char *from,
825 unsigned char *to, RSA *rsa, int padding)
826{
827 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
828 return -1;
829}
830
831int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
832 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
833{
834 ALG_ID alg;
835 HCRYPTHASH hash;
836 DWORD slen;
837 unsigned int i;
838 int ret = -1;
839 CAPI_KEY *capi_key;
840 CAPI_CTX *ctx;
841
842 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
843
844 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
845
846 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
847 if (!capi_key) {
848 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
849 return -1;
850 }
851 /* Convert the signature type to a CryptoAPI algorithm ID */
852 switch (dtype) {
853 case NID_sha256:
854 alg = CALG_SHA_256;
855 break;
856
857 case NID_sha384:
858 alg = CALG_SHA_384;
859 break;
860
861 case NID_sha512:
862 alg = CALG_SHA_512;
863 break;
864
865 case NID_sha1:
866 alg = CALG_SHA1;
867 break;
868
869 case NID_md5:
870 alg = CALG_MD5;
871 break;
872
873 case NID_md5_sha1:
874 alg = CALG_SSL3_SHAMD5;
875 break;
876 default:
877 {
878 char algstr[10];
879 BIO_snprintf(algstr, 10, "%x", dtype);
880 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
881 ERR_add_error_data(2, "NID=0x", algstr);
882 return -1;
883 }
884 }
885
886 /* Create the hash object */
887 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
888 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
889 capi_addlasterror();
890 return -1;
891 }
892 /* Set the hash value to the value passed */
893
894 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
895 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
896 capi_addlasterror();
897 goto err;
898 }
899
900 /* Finally sign it */
901 slen = RSA_size(rsa);
902 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
903 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
904 capi_addlasterror();
905 goto err;
906 } else {
907 ret = 1;
908 /* Inplace byte reversal of signature */
909 for (i = 0; i < slen / 2; i++) {
910 unsigned char c;
911 c = sigret[i];
912 sigret[i] = sigret[slen - i - 1];
913 sigret[slen - i - 1] = c;
914 }
915 *siglen = slen;
916 }
917
918 /* Now cleanup */
919
920 err:
921 CryptDestroyHash(hash);
922
923 return ret;
924}
925
926int capi_rsa_priv_dec(int flen, const unsigned char *from,
927 unsigned char *to, RSA *rsa, int padding)
928{
929 int i;
930 unsigned char *tmpbuf;
931 CAPI_KEY *capi_key;
932 CAPI_CTX *ctx;
933 DWORD flags = 0;
934 DWORD dlen;
935
936 if (flen <= 0)
937 return flen;
938
939 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
940
941 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
942
943 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
944 if (!capi_key) {
945 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
946 return -1;
947 }
948
949 switch (padding) {
950 case RSA_PKCS1_PADDING:
951 /* Nothing to do */
952 break;
953#ifdef CRYPT_DECRYPT_RSA_NO_PADDING_CHECK
954 case RSA_NO_PADDING:
955 flags = CRYPT_DECRYPT_RSA_NO_PADDING_CHECK;
956 break;
957#endif
958 default:
959 {
960 char errstr[10];
961 BIO_snprintf(errstr, 10, "%d", padding);
962 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
963 ERR_add_error_data(2, "padding=", errstr);
964 return -1;
965 }
966 }
967
968 /* Create temp reverse order version of input */
969 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) {
970 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
971 return -1;
972 }
973 for (i = 0; i < flen; i++)
974 tmpbuf[flen - i - 1] = from[i];
975
976 /* Finally decrypt it */
977 dlen = flen;
978 if (!CryptDecrypt(capi_key->key, 0, TRUE, flags, tmpbuf, &dlen)) {
979 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
980 capi_addlasterror();
981 OPENSSL_cleanse(tmpbuf, dlen);
982 OPENSSL_free(tmpbuf);
983 return -1;
984 } else {
985 memcpy(to, tmpbuf, (flen = (int)dlen));
986 }
987 OPENSSL_cleanse(tmpbuf, flen);
988 OPENSSL_free(tmpbuf);
989
990 return flen;
991}
992
993static int capi_rsa_free(RSA *rsa)
994{
995 CAPI_KEY *capi_key;
996 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
997 capi_free_key(capi_key);
998 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
999 return 1;
1000}
1001
1002# ifndef OPENSSL_NO_DSA
1003/* CryptoAPI DSA operations */
1004
1005static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
1006 DSA *dsa)
1007{
1008 HCRYPTHASH hash;
1009 DWORD slen;
1010 DSA_SIG *ret = NULL;
1011 CAPI_KEY *capi_key;
1012 CAPI_CTX *ctx;
1013 unsigned char csigbuf[40];
1014
1015 ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx);
1016
1017 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
1018
1019 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1020
1021 if (!capi_key) {
1022 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
1023 return NULL;
1024 }
1025
1026 if (dlen != 20) {
1027 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
1028 return NULL;
1029 }
1030
1031 /* Create the hash object */
1032 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
1033 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
1034 capi_addlasterror();
1035 return NULL;
1036 }
1037
1038 /* Set the hash value to the value passed */
1039 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
1040 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
1041 capi_addlasterror();
1042 goto err;
1043 }
1044
1045 /* Finally sign it */
1046 slen = sizeof(csigbuf);
1047 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1048 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1049 capi_addlasterror();
1050 goto err;
1051 } else {
1052 BIGNUM *r = BN_new(), *s = BN_new();
1053
1054 if (r == NULL || s == NULL
1055 || !lend_tobn(r, csigbuf, 20)
1056 || !lend_tobn(s, csigbuf + 20, 20)
1057 || (ret = DSA_SIG_new()) == NULL) {
1058 BN_free(r); /* BN_free checks for BIGNUM * being NULL */
1059 BN_free(s);
1060 goto err;
1061 }
1062 DSA_SIG_set0(ret, r, s);
1063 }
1064
1065 /* Now cleanup */
1066
1067 err:
1068 OPENSSL_cleanse(csigbuf, 40);
1069 CryptDestroyHash(hash);
1070 return ret;
1071}
1072
1073static int capi_dsa_free(DSA *dsa)
1074{
1075 CAPI_KEY *capi_key;
1076 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1077 capi_free_key(capi_key);
1078 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1079 return 1;
1080}
1081# endif
1082
1083static void capi_vtrace(CAPI_CTX *ctx, int level, char *format,
1084 va_list argptr)
1085{
1086 BIO *out;
1087
1088 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1089 return;
1090 out = BIO_new_file(ctx->debug_file, "a+");
1091 if (out == NULL) {
1092 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1093 return;
1094 }
1095 BIO_vprintf(out, format, argptr);
1096 BIO_free(out);
1097}
1098
1099static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1100{
1101 va_list args;
1102 va_start(args, format);
1103 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1104 va_end(args);
1105}
1106
1107static void capi_addlasterror(void)
1108{
1109 capi_adderror(GetLastError());
1110}
1111
1112static void capi_adderror(DWORD err)
1113{
1114 char errstr[10];
1115 BIO_snprintf(errstr, 10, "%lX", err);
1116 ERR_add_error_data(2, "Error code= 0x", errstr);
1117}
1118
1119static char *wide_to_asc(LPCWSTR wstr)
1120{
1121 char *str;
1122 int len_0, sz;
1123 size_t len_1;
1124
1125 if (!wstr)
1126 return NULL;
1127
1128 len_1 = wcslen(wstr) + 1;
1129
1130 if (len_1 > INT_MAX) {
1131 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_FUNCTION_NOT_SUPPORTED);
1132 return NULL;
1133 }
1134
1135 len_0 = (int)len_1; /* WideCharToMultiByte expects int */
1136 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1137 if (!sz) {
1138 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1139 return NULL;
1140 }
1141 str = OPENSSL_malloc(sz);
1142 if (str == NULL) {
1143 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1144 return NULL;
1145 }
1146 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1147 OPENSSL_free(str);
1148 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1149 return NULL;
1150 }
1151 return str;
1152}
1153
1154static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype,
1155 DWORD idx)
1156{
1157 DWORD len, err;
1158 LPTSTR name;
1159 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1160 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1161 err = GetLastError();
1162 if (err == ERROR_NO_MORE_ITEMS)
1163 return 2;
1164 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1165 capi_adderror(err);
1166 return 0;
1167 }
1168 name = OPENSSL_malloc(len);
1169 if (name == NULL) {
1170 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1171 return 0;
1172 }
1173 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1174 err = GetLastError();
1175 OPENSSL_free(name);
1176 if (err == ERROR_NO_MORE_ITEMS)
1177 return 2;
1178 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1179 capi_adderror(err);
1180 return 0;
1181 }
1182 if (sizeof(TCHAR) != sizeof(char)) {
1183 *pname = wide_to_asc((WCHAR *)name);
1184 OPENSSL_free(name);
1185 if (*pname == NULL)
1186 return 0;
1187 } else {
1188 *pname = (char *)name;
1189 }
1190 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1191 *ptype);
1192
1193 return 1;
1194}
1195
1196static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1197{
1198 DWORD idx, ptype;
1199 int ret;
1200 LPSTR provname = NULL;
1201 CAPI_trace(ctx, "capi_list_providers\n");
1202 BIO_printf(out, "Available CSPs:\n");
1203 for (idx = 0;; idx++) {
1204 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1205 if (ret == 2)
1206 break;
1207 if (ret == 0)
1208 break;
1209 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
1210 OPENSSL_free(provname);
1211 }
1212 return 1;
1213}
1214
1215static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1216{
1217 int ret = 1;
1218 HCRYPTPROV hprov;
1219 DWORD err, idx, flags, buflen = 0, clen;
1220 LPSTR cname;
1221 LPWSTR cspname = NULL;
1222
1223 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1224 ctx->csptype);
1225 if (ctx->cspname != NULL) {
1226 if ((clen = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1227 NULL, 0))) {
1228 cspname = alloca(clen * sizeof(WCHAR));
1229 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1230 clen);
1231 }
1232 if (cspname == NULL) {
1233 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1234 capi_addlasterror();
1235 return 0;
1236 }
1237 }
1238 if (!CryptAcquireContextW(&hprov, NULL, cspname, ctx->csptype,
1239 CRYPT_VERIFYCONTEXT)) {
1240 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1241 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1242 capi_addlasterror();
1243 return 0;
1244 }
1245 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen,
1246 CRYPT_FIRST)) {
1247 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1248 capi_addlasterror();
1249 CryptReleaseContext(hprov, 0);
1250 return 0;
1251 }
1252 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1253 if (buflen == 0)
1254 buflen = 1024;
1255 cname = OPENSSL_malloc(buflen);
1256 if (cname == NULL) {
1257 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1258 goto err;
1259 }
1260
1261 for (idx = 0;; idx++) {
1262 clen = buflen;
1263 cname[0] = 0;
1264
1265 if (idx == 0)
1266 flags = CRYPT_FIRST;
1267 else
1268 flags = 0;
1269 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, (BYTE *)cname,
1270 &clen, flags)) {
1271 err = GetLastError();
1272 if (err == ERROR_NO_MORE_ITEMS)
1273 goto done;
1274 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1275 capi_adderror(err);
1276 goto err;
1277 }
1278 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1279 cname, clen, idx, flags);
1280 if (!cname[0] && (clen == buflen)) {
1281 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1282 goto done;
1283 }
1284 BIO_printf(out, "%lu. %s\n", idx, cname);
1285 }
1286 err:
1287
1288 ret = 0;
1289
1290 done:
1291 OPENSSL_free(cname);
1292 CryptReleaseContext(hprov, 0);
1293
1294 return ret;
1295}
1296
1297static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx,
1298 PCCERT_CONTEXT cert)
1299{
1300 DWORD len;
1301 CRYPT_KEY_PROV_INFO *pinfo;
1302
1303 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1304 NULL, &len))
1305 return NULL;
1306 pinfo = OPENSSL_malloc(len);
1307 if (pinfo == NULL) {
1308 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1309 return NULL;
1310 }
1311 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1312 pinfo, &len)) {
1313 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1314 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1315 capi_addlasterror();
1316 OPENSSL_free(pinfo);
1317 return NULL;
1318 }
1319 return pinfo;
1320}
1321
1322static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out,
1323 CRYPT_KEY_PROV_INFO *pinfo)
1324{
1325 char *provname = NULL, *contname = NULL;
1326
1327 if (pinfo == NULL) {
1328 BIO_printf(out, " No Private Key\n");
1329 return;
1330 }
1331 provname = wide_to_asc(pinfo->pwszProvName);
1332 contname = wide_to_asc(pinfo->pwszContainerName);
1333 if (provname == NULL || contname == NULL)
1334 goto err;
1335
1336 BIO_printf(out, " Private Key Info:\n");
1337 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
1338 pinfo->dwProvType);
1339 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
1340 pinfo->dwKeySpec);
1341 err:
1342 OPENSSL_free(provname);
1343 OPENSSL_free(contname);
1344}
1345
1346static char *capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1347{
1348 LPWSTR wfname;
1349 DWORD dlen;
1350
1351 CAPI_trace(ctx, "capi_cert_get_fname\n");
1352 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1353 NULL, &dlen))
1354 return NULL;
1355 wfname = OPENSSL_malloc(dlen);
1356 if (wfname == NULL)
1357 return NULL;
1358 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1359 wfname, &dlen)) {
1360 char *fname = wide_to_asc(wfname);
1361 OPENSSL_free(wfname);
1362 return fname;
1363 }
1364 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1365 capi_addlasterror();
1366
1367 OPENSSL_free(wfname);
1368 return NULL;
1369}
1370
1371static void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1372{
1373 X509 *x;
1374 const unsigned char *p;
1375 unsigned long flags = ctx->dump_flags;
1376 if (flags & CAPI_DMP_FNAME) {
1377 char *fname;
1378 fname = capi_cert_get_fname(ctx, cert);
1379 if (fname) {
1380 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1381 OPENSSL_free(fname);
1382 } else {
1383 BIO_printf(out, " <No Friendly Name>\n");
1384 }
1385 }
1386
1387 p = cert->pbCertEncoded;
1388 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1389 if (!x)
1390 BIO_printf(out, " <Can't parse certificate>\n");
1391 if (flags & CAPI_DMP_SUMMARY) {
1392 BIO_printf(out, " Subject: ");
1393 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1394 BIO_printf(out, "\n Issuer: ");
1395 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1396 BIO_printf(out, "\n");
1397 }
1398 if (flags & CAPI_DMP_FULL)
1399 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1400
1401 if (flags & CAPI_DMP_PKEYINFO) {
1402 CRYPT_KEY_PROV_INFO *pinfo;
1403 pinfo = capi_get_prov_info(ctx, cert);
1404 capi_dump_prov_info(ctx, out, pinfo);
1405 OPENSSL_free(pinfo);
1406 }
1407
1408 if (flags & CAPI_DMP_PEM)
1409 PEM_write_bio_X509(out, x);
1410 X509_free(x);
1411}
1412
1413static HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1414{
1415 HCERTSTORE hstore;
1416
1417 if (!storename)
1418 storename = ctx->storename;
1419 if (!storename)
1420 storename = "MY";
1421 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1422
1423 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1424 ctx->store_flags, storename);
1425 if (!hstore) {
1426 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1427 capi_addlasterror();
1428 }
1429 return hstore;
1430}
1431
1432int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1433{
1434 char *storename;
1435 int idx;
1436 int ret = 1;
1437 HCERTSTORE hstore;
1438 PCCERT_CONTEXT cert = NULL;
1439
1440 storename = ctx->storename;
1441 if (!storename)
1442 storename = "MY";
1443 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1444
1445 hstore = capi_open_store(ctx, storename);
1446 if (!hstore)
1447 return 0;
1448 if (id) {
1449 cert = capi_find_cert(ctx, id, hstore);
1450 if (!cert) {
1451 ret = 0;
1452 goto err;
1453 }
1454 capi_dump_cert(ctx, out, cert);
1455 CertFreeCertificateContext(cert);
1456 } else {
1457 for (idx = 0;; idx++) {
1458 cert = CertEnumCertificatesInStore(hstore, cert);
1459 if (!cert)
1460 break;
1461 BIO_printf(out, "Certificate %d\n", idx);
1462 capi_dump_cert(ctx, out, cert);
1463 }
1464 }
1465 err:
1466 CertCloseStore(hstore, 0);
1467 return ret;
1468}
1469
1470static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
1471 HCERTSTORE hstore)
1472{
1473 PCCERT_CONTEXT cert = NULL;
1474 char *fname = NULL;
1475 int match;
1476 switch (ctx->lookup_method) {
1477 case CAPI_LU_SUBSTR:
1478 return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0,
1479 CERT_FIND_SUBJECT_STR_A, id, NULL);
1480 case CAPI_LU_FNAME:
1481 for (;;) {
1482 cert = CertEnumCertificatesInStore(hstore, cert);
1483 if (!cert)
1484 return NULL;
1485 fname = capi_cert_get_fname(ctx, cert);
1486 if (fname) {
1487 if (strcmp(fname, id))
1488 match = 0;
1489 else
1490 match = 1;
1491 OPENSSL_free(fname);
1492 if (match)
1493 return cert;
1494 }
1495 }
1496 default:
1497 return NULL;
1498 }
1499}
1500
1501static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const WCHAR *contname,
1502 const WCHAR *provname, DWORD ptype,
1503 DWORD keyspec)
1504{
1505 DWORD dwFlags = 0;
1506 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1507
1508 if (key == NULL)
1509 return NULL;
1510 /* If PROV_RSA_AES supported use it instead */
1511 if (ptype == PROV_RSA_FULL && use_aes_csp &&
1512 wcscmp(provname, rsa_enh_cspname) == 0) {
1513 provname = rsa_aes_cspname;
1514 ptype = PROV_RSA_AES;
1515 }
1516 if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1517 /*
1518 * above 'if' is [complementary] copy from CAPI_trace and serves
1519 * as optimization to minimize [below] malloc-ations
1520 */
1521 char *_contname = wide_to_asc(contname);
1522 char *_provname = wide_to_asc(provname);
1523
1524 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1525 _contname, _provname, ptype);
1526 OPENSSL_free(_provname);
1527 OPENSSL_free(_contname);
1528 }
1529 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1530 dwFlags = CRYPT_MACHINE_KEYSET;
1531 if (!CryptAcquireContextW(&key->hprov, contname, provname, ptype,
1532 dwFlags)) {
1533 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1534 capi_addlasterror();
1535 goto err;
1536 }
1537 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1538 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1539 capi_addlasterror();
1540 CryptReleaseContext(key->hprov, 0);
1541 goto err;
1542 }
1543 key->keyspec = keyspec;
1544 key->pcert = NULL;
1545 return key;
1546
1547 err:
1548 OPENSSL_free(key);
1549 return NULL;
1550}
1551
1552static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1553{
1554 CAPI_KEY *key = NULL;
1555 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1556
1557 pinfo = capi_get_prov_info(ctx, cert);
1558
1559 if (pinfo != NULL)
1560 key = capi_get_key(ctx, pinfo->pwszContainerName, pinfo->pwszProvName,
1561 pinfo->dwProvType, pinfo->dwKeySpec);
1562
1563 OPENSSL_free(pinfo);
1564 return key;
1565}
1566
1567CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1568{
1569 PCCERT_CONTEXT cert;
1570 HCERTSTORE hstore;
1571 CAPI_KEY *key = NULL;
1572
1573 switch (ctx->lookup_method) {
1574 case CAPI_LU_SUBSTR:
1575 case CAPI_LU_FNAME:
1576 hstore = capi_open_store(ctx, NULL);
1577 if (!hstore)
1578 return NULL;
1579 cert = capi_find_cert(ctx, id, hstore);
1580 if (cert) {
1581 key = capi_get_cert_key(ctx, cert);
1582 CertFreeCertificateContext(cert);
1583 }
1584 CertCloseStore(hstore, 0);
1585 break;
1586
1587 case CAPI_LU_CONTNAME:
1588 {
1589 WCHAR *contname, *provname;
1590 DWORD len;
1591
1592 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1593 (contname = alloca(len * sizeof(WCHAR)),
1594 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1595 (len = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1596 NULL, 0)) &&
1597 (provname = alloca(len * sizeof(WCHAR)),
1598 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1599 provname, len)))
1600 key = capi_get_key(ctx, contname, provname,
1601 ctx->csptype, ctx->keytype);
1602 }
1603 break;
1604 }
1605
1606 return key;
1607}
1608
1609void capi_free_key(CAPI_KEY *key)
1610{
1611 if (!key)
1612 return;
1613 CryptDestroyKey(key->key);
1614 CryptReleaseContext(key->hprov, 0);
1615 if (key->pcert)
1616 CertFreeCertificateContext(key->pcert);
1617 OPENSSL_free(key);
1618}
1619
1620/* Initialize a CAPI_CTX structure */
1621
1622static CAPI_CTX *capi_ctx_new(void)
1623{
1624 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
1625
1626 if (ctx == NULL) {
1627 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1628 return NULL;
1629 }
1630 ctx->csptype = PROV_RSA_FULL;
1631 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1632 ctx->keytype = AT_KEYEXCHANGE;
1633 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1634 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1635 ctx->lookup_method = CAPI_LU_SUBSTR;
1636 ctx->client_cert_select = cert_select_simple;
1637 return ctx;
1638}
1639
1640static void capi_ctx_free(CAPI_CTX *ctx)
1641{
1642 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1643 if (!ctx)
1644 return;
1645 OPENSSL_free(ctx->cspname);
1646 OPENSSL_free(ctx->debug_file);
1647 OPENSSL_free(ctx->storename);
1648 OPENSSL_free(ctx->ssl_client_store);
1649 OPENSSL_free(ctx);
1650}
1651
1652static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
1653 int check)
1654{
1655 LPSTR tmpcspname;
1656
1657 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1658 if (check) {
1659 HCRYPTPROV hprov;
1660 LPWSTR name = NULL;
1661 DWORD len;
1662
1663 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1664 name = alloca(len * sizeof(WCHAR));
1665 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1666 }
1667 if (name == NULL || !CryptAcquireContextW(&hprov, NULL, name, type,
1668 CRYPT_VERIFYCONTEXT)) {
1669 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1670 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1671 capi_addlasterror();
1672 return 0;
1673 }
1674 CryptReleaseContext(hprov, 0);
1675 }
1676 tmpcspname = OPENSSL_strdup(pname);
1677 if (tmpcspname == NULL) {
1678 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, ERR_R_MALLOC_FAILURE);
1679 return 0;
1680 }
1681 OPENSSL_free(ctx->cspname);
1682 ctx->cspname = tmpcspname;
1683 ctx->csptype = type;
1684 return 1;
1685}
1686
1687static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1688{
1689 LPSTR pname;
1690 DWORD type;
1691 int res;
1692 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1693 return 0;
1694 res = capi_ctx_set_provname(ctx, pname, type, 0);
1695 OPENSSL_free(pname);
1696 return res;
1697}
1698
1699static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1700{
1701 int i;
1702 X509_NAME *nm;
1703 /* Special case: empty list: match anything */
1704 if (sk_X509_NAME_num(ca_dn) <= 0)
1705 return 1;
1706 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1707 nm = sk_X509_NAME_value(ca_dn, i);
1708 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1709 return 1;
1710 }
1711 return 0;
1712}
1713
1714static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1715 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1716 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1717 UI_METHOD *ui_method,
1718 void *callback_data)
1719{
1720 STACK_OF(X509) *certs = NULL;
1721 X509 *x;
1722 char *storename;
1723 const unsigned char *p;
1724 int i, client_cert_idx;
1725 HCERTSTORE hstore;
1726 PCCERT_CONTEXT cert = NULL, excert = NULL;
1727 CAPI_CTX *ctx;
1728 CAPI_KEY *key;
1729 ctx = ENGINE_get_ex_data(e, capi_idx);
1730
1731 *pcert = NULL;
1732 *pkey = NULL;
1733
1734 storename = ctx->ssl_client_store;
1735 if (!storename)
1736 storename = "MY";
1737
1738 hstore = capi_open_store(ctx, storename);
1739 if (!hstore)
1740 return 0;
1741 /* Enumerate all certificates collect any matches */
1742 for (i = 0;; i++) {
1743 cert = CertEnumCertificatesInStore(hstore, cert);
1744 if (!cert)
1745 break;
1746 p = cert->pbCertEncoded;
1747 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1748 if (!x) {
1749 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1750 continue;
1751 }
1752 if (cert_issuer_match(ca_dn, x)
1753 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1754 key = capi_get_cert_key(ctx, cert);
1755 if (!key) {
1756 X509_free(x);
1757 continue;
1758 }
1759 /*
1760 * Match found: attach extra data to it so we can retrieve the
1761 * key later.
1762 */
1763 excert = CertDuplicateCertificateContext(cert);
1764 key->pcert = excert;
1765 X509_set_ex_data(x, cert_capi_idx, key);
1766
1767 if (!certs)
1768 certs = sk_X509_new_null();
1769
1770 sk_X509_push(certs, x);
1771 } else {
1772 X509_free(x);
1773 }
1774 }
1775
1776 if (cert)
1777 CertFreeCertificateContext(cert);
1778 if (hstore)
1779 CertCloseStore(hstore, 0);
1780
1781 if (!certs)
1782 return 0;
1783
1784 /* Select the appropriate certificate */
1785
1786 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1787
1788 /* Set the selected certificate and free the rest */
1789
1790 for (i = 0; i < sk_X509_num(certs); i++) {
1791 x = sk_X509_value(certs, i);
1792 if (i == client_cert_idx)
1793 *pcert = x;
1794 else {
1795 key = X509_get_ex_data(x, cert_capi_idx);
1796 capi_free_key(key);
1797 X509_free(x);
1798 }
1799 }
1800
1801 sk_X509_free(certs);
1802
1803 if (*pcert == NULL)
1804 return 0;
1805
1806 /* Setup key for selected certificate */
1807
1808 key = X509_get_ex_data(*pcert, cert_capi_idx);
1809 *pkey = capi_get_pkey(e, key);
1810 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1811
1812 return 1;
1813
1814}
1815
1816/* Simple client cert selection function: always select first */
1817
1818static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1819{
1820 return 0;
1821}
1822
1823# ifdef OPENSSL_CAPIENG_DIALOG
1824
1825/*
1826 * More complex cert selection function, using standard function
1827 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1828 */
1829
1830/*
1831 * Definitions which are in cryptuiapi.h but this is not present in older
1832 * versions of headers.
1833 */
1834
1835# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1836# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1837# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1838# endif
1839
1840# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1841# define dlg_prompt L"Select a certificate to use for authentication"
1842# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1843 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1844
1845static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1846{
1847 X509 *x;
1848 HCERTSTORE dstore;
1849 PCCERT_CONTEXT cert;
1850 CAPI_CTX *ctx;
1851 CAPI_KEY *key;
1852 HWND hwnd;
1853 int i, idx = -1;
1854 if (sk_X509_num(certs) == 1)
1855 return 0;
1856 ctx = ENGINE_get_ex_data(e, capi_idx);
1857 /* Create an in memory store of certificates */
1858 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1859 CERT_STORE_CREATE_NEW_FLAG, NULL);
1860 if (!dstore) {
1861 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1862 capi_addlasterror();
1863 goto err;
1864 }
1865 /* Add all certificates to store */
1866 for (i = 0; i < sk_X509_num(certs); i++) {
1867 x = sk_X509_value(certs, i);
1868 key = X509_get_ex_data(x, cert_capi_idx);
1869
1870 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1871 CERT_STORE_ADD_NEW, NULL)) {
1872 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1873 capi_addlasterror();
1874 goto err;
1875 }
1876
1877 }
1878 hwnd = GetForegroundWindow();
1879 if (!hwnd)
1880 hwnd = GetActiveWindow();
1881 if (!hwnd && ctx->getconswindow)
1882 hwnd = ctx->getconswindow();
1883 /* Call dialog to select one */
1884 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1885 dlg_columns, 0, NULL);
1886
1887 /* Find matching cert from list */
1888 if (cert) {
1889 for (i = 0; i < sk_X509_num(certs); i++) {
1890 x = sk_X509_value(certs, i);
1891 key = X509_get_ex_data(x, cert_capi_idx);
1892 if (CertCompareCertificate
1893 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1894 key->pcert->pCertInfo)) {
1895 idx = i;
1896 break;
1897 }
1898 }
1899 }
1900
1901 err:
1902 if (dstore)
1903 CertCloseStore(dstore, 0);
1904 return idx;
1905
1906}
1907# endif
1908
1909#else /* !__COMPILE_CAPIENG */
1910# include <openssl/engine.h>
1911# ifndef OPENSSL_NO_DYNAMIC_ENGINE
1912OPENSSL_EXPORT
1913 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1914OPENSSL_EXPORT
1915 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1916{
1917 return 0;
1918}
1919
1920IMPLEMENT_DYNAMIC_CHECK_FN()
1921# else
1922void engine_load_capi_int(void);
1923void engine_load_capi_int(void)
1924{
1925}
1926# endif
1927#endif
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