source: EcnlProtoTool/trunk/openssl-1.1.0e/engines/e_capi.c@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc
File size: 54.6 KB
Line 
1/*
2 * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#ifdef _WIN32
11# ifndef _WIN32_WINNT
12# define _WIN32_WINNT 0x0400
13# endif
14# include <windows.h>
15# include <wincrypt.h>
16
17# include <stdio.h>
18# include <string.h>
19# include <stdlib.h>
20# include <malloc.h>
21# ifndef alloca
22# define alloca _alloca
23# endif
24
25# include <openssl/crypto.h>
26
27# ifndef OPENSSL_NO_CAPIENG
28
29# include <openssl/buffer.h>
30# include <openssl/bn.h>
31# include <openssl/rsa.h>
32# include <openssl/dsa.h>
33
34/*
35 * This module uses several "new" interfaces, among which is
36 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
37 * one of possible values you can pass to function in question. By
38 * checking if it's defined we can see if wincrypt.h and accompanying
39 * crypt32.lib are in shape. The native MingW32 headers up to and
40 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
41 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
42 * so we check for these too and avoid compiling.
43 * Yes, it's rather "weak" test and if compilation fails,
44 * then re-configure with -DOPENSSL_NO_CAPIENG.
45 */
46# if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
47 defined(CERT_STORE_PROV_SYSTEM_A) && \
48 defined(CERT_STORE_READONLY_FLAG)
49# define __COMPILE_CAPIENG
50# endif /* CERT_KEY_PROV_INFO_PROP_ID */
51# endif /* OPENSSL_NO_CAPIENG */
52#endif /* _WIN32 */
53
54#ifdef __COMPILE_CAPIENG
55
56# undef X509_EXTENSIONS
57
58/* Definitions which may be missing from earlier version of headers */
59# ifndef CERT_STORE_OPEN_EXISTING_FLAG
60# define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
61# endif
62
63# ifndef CERT_STORE_CREATE_NEW_FLAG
64# define CERT_STORE_CREATE_NEW_FLAG 0x00002000
65# endif
66
67# ifndef CERT_SYSTEM_STORE_CURRENT_USER
68# define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
69# endif
70
71# ifndef ALG_SID_SHA_256
72# define ALG_SID_SHA_256 12
73# endif
74# ifndef ALG_SID_SHA_384
75# define ALG_SID_SHA_384 13
76# endif
77# ifndef ALG_SID_SHA_512
78# define ALG_SID_SHA_512 14
79# endif
80
81# ifndef CALG_SHA_256
82# define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
83# endif
84# ifndef CALG_SHA_384
85# define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
86# endif
87# ifndef CALG_SHA_512
88# define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
89# endif
90
91# ifndef PROV_RSA_AES
92# define PROV_RSA_AES 24
93# endif
94
95# include <openssl/engine.h>
96# include <openssl/pem.h>
97# include <openssl/x509v3.h>
98
99# include "e_capi_err.h"
100# include "e_capi_err.c"
101
102static const char *engine_capi_id = "capi";
103static const char *engine_capi_name = "CryptoAPI ENGINE";
104
105typedef struct CAPI_CTX_st CAPI_CTX;
106typedef struct CAPI_KEY_st CAPI_KEY;
107
108static void capi_addlasterror(void);
109static void capi_adderror(DWORD err);
110
111static void CAPI_trace(CAPI_CTX * ctx, char *format, ...);
112
113static int capi_list_providers(CAPI_CTX * ctx, BIO *out);
114static int capi_list_containers(CAPI_CTX * ctx, BIO *out);
115int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *storename);
116void capi_free_key(CAPI_KEY * key);
117
118static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
119 HCERTSTORE hstore);
120
121CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id);
122
123static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
124 UI_METHOD *ui_method, void *callback_data);
125static int capi_rsa_sign(int dtype, const unsigned char *m,
126 unsigned int m_len, unsigned char *sigret,
127 unsigned int *siglen, const RSA *rsa);
128static int capi_rsa_priv_enc(int flen, const unsigned char *from,
129 unsigned char *to, RSA *rsa, int padding);
130static int capi_rsa_priv_dec(int flen, const unsigned char *from,
131 unsigned char *to, RSA *rsa, int padding);
132static int capi_rsa_free(RSA *rsa);
133
134# ifndef OPENSSL_NO_DSA
135static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
136 DSA *dsa);
137static int capi_dsa_free(DSA *dsa);
138# endif
139
140static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
141 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
142 EVP_PKEY **pkey, STACK_OF(X509) **pother,
143 UI_METHOD *ui_method,
144 void *callback_data);
145
146static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
147# ifdef OPENSSL_CAPIENG_DIALOG
148static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
149# endif
150
151void engine_load_capi_int(void);
152
153typedef PCCERT_CONTEXT(WINAPI *CERTDLG) (HCERTSTORE, HWND, LPCWSTR,
154 LPCWSTR, DWORD, DWORD, void *);
155typedef HWND(WINAPI *GETCONSWIN) (void);
156
157/*
158 * This structure contains CAPI ENGINE specific data: it contains various
159 * global options and affects how other functions behave.
160 */
161
162# define CAPI_DBG_TRACE 2
163# define CAPI_DBG_ERROR 1
164
165struct CAPI_CTX_st {
166 int debug_level;
167 char *debug_file;
168 /* Parameters to use for container lookup */
169 DWORD keytype;
170 LPSTR cspname;
171 DWORD csptype;
172 /* Certificate store name to use */
173 LPSTR storename;
174 LPSTR ssl_client_store;
175 /* System store flags */
176 DWORD store_flags;
177/* Lookup string meanings in load_private_key */
178/* Substring of subject: uses "storename" */
179# define CAPI_LU_SUBSTR 1
180/* Friendly name: uses storename */
181# define CAPI_LU_FNAME 2
182/* Container name: uses cspname, keytype */
183# define CAPI_LU_CONTNAME 3
184 int lookup_method;
185/* Info to dump with dumpcerts option */
186/* Issuer and serial name strings */
187# define CAPI_DMP_SUMMARY 0x1
188/* Friendly name */
189# define CAPI_DMP_FNAME 0x2
190/* Full X509_print dump */
191# define CAPI_DMP_FULL 0x4
192/* Dump PEM format certificate */
193# define CAPI_DMP_PEM 0x8
194/* Dump pseudo key (if possible) */
195# define CAPI_DMP_PSKEY 0x10
196/* Dump key info (if possible) */
197# define CAPI_DMP_PKEYINFO 0x20
198 DWORD dump_flags;
199 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
200 CERTDLG certselectdlg;
201 GETCONSWIN getconswindow;
202};
203
204static CAPI_CTX *capi_ctx_new(void);
205static void capi_ctx_free(CAPI_CTX * ctx);
206static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
207 int check);
208static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx);
209
210# define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
211# define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
212# define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
213# define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
214# define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
215# define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
216# define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
217# define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
218# define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
219# define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
220# define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
221# define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
222# define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
223# define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
224
225static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
226 {CAPI_CMD_LIST_CERTS,
227 "list_certs",
228 "List all certificates in store",
229 ENGINE_CMD_FLAG_NO_INPUT},
230 {CAPI_CMD_LOOKUP_CERT,
231 "lookup_cert",
232 "Lookup and output certificates",
233 ENGINE_CMD_FLAG_STRING},
234 {CAPI_CMD_DEBUG_LEVEL,
235 "debug_level",
236 "debug level (1=errors, 2=trace)",
237 ENGINE_CMD_FLAG_NUMERIC},
238 {CAPI_CMD_DEBUG_FILE,
239 "debug_file",
240 "debugging filename)",
241 ENGINE_CMD_FLAG_STRING},
242 {CAPI_CMD_KEYTYPE,
243 "key_type",
244 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
245 ENGINE_CMD_FLAG_NUMERIC},
246 {CAPI_CMD_LIST_CSPS,
247 "list_csps",
248 "List all CSPs",
249 ENGINE_CMD_FLAG_NO_INPUT},
250 {CAPI_CMD_SET_CSP_IDX,
251 "csp_idx",
252 "Set CSP by index",
253 ENGINE_CMD_FLAG_NUMERIC},
254 {CAPI_CMD_SET_CSP_NAME,
255 "csp_name",
256 "Set CSP name, (default CSP used if not specified)",
257 ENGINE_CMD_FLAG_STRING},
258 {CAPI_CMD_SET_CSP_TYPE,
259 "csp_type",
260 "Set CSP type, (default RSA_PROV_FULL)",
261 ENGINE_CMD_FLAG_NUMERIC},
262 {CAPI_CMD_LIST_CONTAINERS,
263 "list_containers",
264 "list container names",
265 ENGINE_CMD_FLAG_NO_INPUT},
266 {CAPI_CMD_LIST_OPTIONS,
267 "list_options",
268 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
269 "32=private key info)",
270 ENGINE_CMD_FLAG_NUMERIC},
271 {CAPI_CMD_LOOKUP_METHOD,
272 "lookup_method",
273 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
274 ENGINE_CMD_FLAG_NUMERIC},
275 {CAPI_CMD_STORE_NAME,
276 "store_name",
277 "certificate store name, default \"MY\"",
278 ENGINE_CMD_FLAG_STRING},
279 {CAPI_CMD_STORE_FLAGS,
280 "store_flags",
281 "Certificate store flags: 1 = system store",
282 ENGINE_CMD_FLAG_NUMERIC},
283
284 {0, NULL, NULL, 0}
285};
286
287static int capi_idx = -1;
288static int rsa_capi_idx = -1;
289static int dsa_capi_idx = -1;
290static int cert_capi_idx = -1;
291
292static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
293{
294 int ret = 1;
295 CAPI_CTX *ctx;
296 BIO *out;
297 LPSTR tmpstr;
298 if (capi_idx == -1) {
299 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
300 return 0;
301 }
302 ctx = ENGINE_get_ex_data(e, capi_idx);
303 out = BIO_new_fp(stdout, BIO_NOCLOSE);
304 if (out == NULL) {
305 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
306 return 0;
307 }
308 switch (cmd) {
309 case CAPI_CMD_LIST_CSPS:
310 ret = capi_list_providers(ctx, out);
311 break;
312
313 case CAPI_CMD_LIST_CERTS:
314 ret = capi_list_certs(ctx, out, NULL);
315 break;
316
317 case CAPI_CMD_LOOKUP_CERT:
318 ret = capi_list_certs(ctx, out, p);
319 break;
320
321 case CAPI_CMD_LIST_CONTAINERS:
322 ret = capi_list_containers(ctx, out);
323 break;
324
325 case CAPI_CMD_STORE_NAME:
326 tmpstr = OPENSSL_strdup(p);
327 if (tmpstr != NULL) {
328 OPENSSL_free(ctx->storename);
329 ctx->storename = tmpstr;
330 CAPI_trace(ctx, "Setting store name to %s\n", p);
331 } else {
332 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE);
333 ret = 0;
334 }
335 break;
336
337 case CAPI_CMD_STORE_FLAGS:
338 if (i & 1) {
339 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
340 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
341 } else {
342 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
343 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
344 }
345 CAPI_trace(ctx, "Setting flags to %d\n", i);
346 break;
347
348 case CAPI_CMD_DEBUG_LEVEL:
349 ctx->debug_level = (int)i;
350 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
351 break;
352
353 case CAPI_CMD_DEBUG_FILE:
354 tmpstr = OPENSSL_strdup(p);
355 if (tmpstr != NULL) {
356 ctx->debug_file = tmpstr;
357 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
358 } else {
359 CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE);
360 ret = 0;
361 }
362 break;
363
364 case CAPI_CMD_KEYTYPE:
365 ctx->keytype = i;
366 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
367 break;
368
369 case CAPI_CMD_SET_CSP_IDX:
370 ret = capi_ctx_set_provname_idx(ctx, i);
371 break;
372
373 case CAPI_CMD_LIST_OPTIONS:
374 ctx->dump_flags = i;
375 break;
376
377 case CAPI_CMD_LOOKUP_METHOD:
378 if (i < 1 || i > 3) {
379 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
380 BIO_free(out);
381 return 0;
382 }
383 ctx->lookup_method = i;
384 break;
385
386 case CAPI_CMD_SET_CSP_NAME:
387 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
388 break;
389
390 case CAPI_CMD_SET_CSP_TYPE:
391 ctx->csptype = i;
392 break;
393
394 default:
395 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
396 ret = 0;
397 }
398
399 BIO_free(out);
400 return ret;
401
402}
403
404static RSA_METHOD *capi_rsa_method = NULL;
405# ifndef OPENSSL_NO_DSA
406static DSA_METHOD *capi_dsa_method = NULL;
407# endif
408
409static int use_aes_csp = 0;
410
411static int capi_init(ENGINE *e)
412{
413 CAPI_CTX *ctx;
414 const RSA_METHOD *ossl_rsa_meth;
415# ifndef OPENSSL_NO_DSA
416 const DSA_METHOD *ossl_dsa_meth;
417# endif
418 HCRYPTPROV hprov;
419
420 if (capi_idx < 0) {
421 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
422 if (capi_idx < 0)
423 goto memerr;
424
425 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
426
427 /* Setup RSA_METHOD */
428 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
429 ossl_rsa_meth = RSA_PKCS1_OpenSSL();
430 if ( !RSA_meth_set_pub_enc(capi_rsa_method,
431 RSA_meth_get_pub_enc(ossl_rsa_meth))
432 || !RSA_meth_set_pub_dec(capi_rsa_method,
433 RSA_meth_get_pub_dec(ossl_rsa_meth))
434 || !RSA_meth_set_priv_enc(capi_rsa_method, capi_rsa_priv_enc)
435 || !RSA_meth_set_priv_dec(capi_rsa_method, capi_rsa_priv_dec)
436 || !RSA_meth_set_mod_exp(capi_rsa_method,
437 RSA_meth_get_mod_exp(ossl_rsa_meth))
438 || !RSA_meth_set_bn_mod_exp(capi_rsa_method,
439 RSA_meth_get_bn_mod_exp(ossl_rsa_meth))
440 || !RSA_meth_set_finish(capi_rsa_method, capi_rsa_free)
441 || !RSA_meth_set_sign(capi_rsa_method, capi_rsa_sign)) {
442 goto memerr;
443 }
444
445# ifndef OPENSSL_NO_DSA
446 /* Setup DSA Method */
447 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
448 ossl_dsa_meth = DSA_OpenSSL();
449 if ( !DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign)
450 || !DSA_meth_set_verify(capi_dsa_method,
451 DSA_meth_get_verify(ossl_dsa_meth))
452 || !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free)
453 || !DSA_meth_set_mod_exp(capi_dsa_method,
454 DSA_meth_get_mod_exp(ossl_dsa_meth))
455 || !DSA_meth_set_bn_mod_exp(capi_dsa_method,
456 DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) {
457 goto memerr;
458 }
459# endif
460 }
461
462 ctx = capi_ctx_new();
463 if (ctx == NULL)
464 goto memerr;
465
466 ENGINE_set_ex_data(e, capi_idx, ctx);
467
468# ifdef OPENSSL_CAPIENG_DIALOG
469 {
470 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
471 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
472 if (cryptui)
473 ctx->certselectdlg =
474 (CERTDLG) GetProcAddress(cryptui,
475 "CryptUIDlgSelectCertificateFromStore");
476 if (kernel)
477 ctx->getconswindow =
478 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
479 if (cryptui && !OPENSSL_isservice())
480 ctx->client_cert_select = cert_select_dialog;
481 }
482# endif
483
484 /* See if we support AES CSP */
485
486 if (CryptAcquireContext(&hprov, NULL, NULL, PROV_RSA_AES,
487 CRYPT_VERIFYCONTEXT)) {
488 use_aes_csp = 1;
489 CryptReleaseContext(hprov, 0);
490 }
491
492 return 1;
493
494 memerr:
495 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
496 return 0;
497
498 return 1;
499}
500
501static int capi_destroy(ENGINE *e)
502{
503 RSA_meth_free(capi_rsa_method);
504 capi_rsa_method = NULL;
505# ifndef OPENSSL_NO_DSA
506 DSA_meth_free(capi_dsa_method);
507 capi_dsa_method = NULL;
508# endif
509 ERR_unload_CAPI_strings();
510 return 1;
511}
512
513static int capi_finish(ENGINE *e)
514{
515 CAPI_CTX *ctx;
516 ctx = ENGINE_get_ex_data(e, capi_idx);
517 capi_ctx_free(ctx);
518 ENGINE_set_ex_data(e, capi_idx, NULL);
519 return 1;
520}
521
522/*
523 * CryptoAPI key application data. This contains a handle to the private key
524 * container (for sign operations) and a handle to the key (for decrypt
525 * operations).
526 */
527
528struct CAPI_KEY_st {
529 /* Associated certificate context (if any) */
530 PCCERT_CONTEXT pcert;
531 HCRYPTPROV hprov;
532 HCRYPTKEY key;
533 DWORD keyspec;
534};
535
536static int bind_capi(ENGINE *e)
537{
538 capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0);
539 if (capi_rsa_method == NULL)
540 return 0;
541# ifndef OPENSSL_NO_DSA
542 capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0);
543 if (capi_dsa_method == NULL)
544 goto memerr;
545# endif
546 if (!ENGINE_set_id(e, engine_capi_id)
547 || !ENGINE_set_name(e, engine_capi_name)
548 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
549 || !ENGINE_set_init_function(e, capi_init)
550 || !ENGINE_set_finish_function(e, capi_finish)
551 || !ENGINE_set_destroy_function(e, capi_destroy)
552 || !ENGINE_set_RSA(e, capi_rsa_method)
553# ifndef OPENSSL_NO_DSA
554 || !ENGINE_set_DSA(e, capi_dsa_method)
555# endif
556 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
557 || !ENGINE_set_load_ssl_client_cert_function(e,
558 capi_load_ssl_client_cert)
559 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
560 || !ENGINE_set_ctrl_function(e, capi_ctrl))
561 goto memerr;
562 ERR_load_CAPI_strings();
563
564 return 1;
565 memerr:
566 RSA_meth_free(capi_rsa_method);
567 capi_rsa_method = NULL;
568# ifndef OPENSSL_NO_DSA
569 DSA_meth_free(capi_dsa_method);
570 capi_dsa_method = NULL;
571# endif
572 return 0;
573}
574
575# ifndef OPENSSL_NO_DYNAMIC_ENGINE
576static int bind_helper(ENGINE *e, const char *id)
577{
578 if (id && (strcmp(id, engine_capi_id) != 0))
579 return 0;
580 if (!bind_capi(e))
581 return 0;
582 return 1;
583}
584
585IMPLEMENT_DYNAMIC_CHECK_FN()
586 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
587# else
588static ENGINE *engine_capi(void)
589{
590 ENGINE *ret = ENGINE_new();
591 if (ret == NULL)
592 return NULL;
593 if (!bind_capi(ret)) {
594 ENGINE_free(ret);
595 return NULL;
596 }
597 return ret;
598}
599
600void engine_load_capi_int(void)
601{
602 /* Copied from eng_[openssl|dyn].c */
603 ENGINE *toadd = engine_capi();
604 if (!toadd)
605 return;
606 ENGINE_add(toadd);
607 ENGINE_free(toadd);
608 ERR_clear_error();
609}
610# endif
611
612static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
613{
614 int i;
615 /*
616 * Reverse buffer in place: since this is a keyblob structure that will
617 * be freed up after conversion anyway it doesn't matter if we change
618 * it.
619 */
620 for (i = 0; i < binlen / 2; i++) {
621 unsigned char c;
622 c = bin[i];
623 bin[i] = bin[binlen - i - 1];
624 bin[binlen - i - 1] = c;
625 }
626
627 if (!BN_bin2bn(bin, binlen, bn))
628 return 0;
629 return 1;
630}
631
632/* Given a CAPI_KEY get an EVP_PKEY structure */
633
634static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY * key)
635{
636 unsigned char *pubkey = NULL;
637 DWORD len;
638 BLOBHEADER *bh;
639 RSA *rkey = NULL;
640 DSA *dkey = NULL;
641 EVP_PKEY *ret = NULL;
642 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
643 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
644 capi_addlasterror();
645 return NULL;
646 }
647
648 pubkey = OPENSSL_malloc(len);
649
650 if (pubkey == NULL)
651 goto memerr;
652
653 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
654 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
655 capi_addlasterror();
656 goto err;
657 }
658
659 bh = (BLOBHEADER *) pubkey;
660 if (bh->bType != PUBLICKEYBLOB) {
661 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
662 goto err;
663 }
664 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
665 RSAPUBKEY *rp;
666 DWORD rsa_modlen;
667 BIGNUM *e = NULL, *n = NULL;
668 unsigned char *rsa_modulus;
669 rp = (RSAPUBKEY *) (bh + 1);
670 if (rp->magic != 0x31415352) {
671 char magstr[10];
672 BIO_snprintf(magstr, 10, "%lx", rp->magic);
673 CAPIerr(CAPI_F_CAPI_GET_PKEY,
674 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
675 ERR_add_error_data(2, "magic=0x", magstr);
676 goto err;
677 }
678 rsa_modulus = (unsigned char *)(rp + 1);
679 rkey = RSA_new_method(eng);
680 if (!rkey)
681 goto memerr;
682
683 e = BN_new();
684 n = BN_new();
685
686 if (e == NULL || n == NULL) {
687 BN_free(e);
688 BN_free(n);
689 goto memerr;
690 }
691
692 RSA_set0_key(rkey, n, e, NULL);
693
694 if (!BN_set_word(e, rp->pubexp))
695 goto memerr;
696
697 rsa_modlen = rp->bitlen / 8;
698 if (!lend_tobn(n, rsa_modulus, rsa_modlen))
699 goto memerr;
700
701 RSA_set_ex_data(rkey, rsa_capi_idx, key);
702
703 if ((ret = EVP_PKEY_new()) == NULL)
704 goto memerr;
705
706 EVP_PKEY_assign_RSA(ret, rkey);
707 rkey = NULL;
708
709# ifndef OPENSSL_NO_DSA
710 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
711 DSSPUBKEY *dp;
712 DWORD dsa_plen;
713 unsigned char *btmp;
714 BIGNUM *p, *q, *g, *pub_key;
715 dp = (DSSPUBKEY *) (bh + 1);
716 if (dp->magic != 0x31535344) {
717 char magstr[10];
718 BIO_snprintf(magstr, 10, "%lx", dp->magic);
719 CAPIerr(CAPI_F_CAPI_GET_PKEY,
720 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
721 ERR_add_error_data(2, "magic=0x", magstr);
722 goto err;
723 }
724 dsa_plen = dp->bitlen / 8;
725 btmp = (unsigned char *)(dp + 1);
726 dkey = DSA_new_method(eng);
727 if (!dkey)
728 goto memerr;
729 p = BN_new();
730 q = BN_new();
731 g = BN_new();
732 pub_key = BN_new();
733 if (p == NULL || q == NULL || g == NULL || pub_key == NULL) {
734 BN_free(p);
735 BN_free(q);
736 BN_free(g);
737 BN_free(pub_key);
738 goto memerr;
739 }
740 DSA_set0_pqg(dkey, p, q, g);
741 DSA_set0_key(dkey, pub_key, NULL);
742 if (!lend_tobn(p, btmp, dsa_plen))
743 goto memerr;
744 btmp += dsa_plen;
745 if (!lend_tobn(q, btmp, 20))
746 goto memerr;
747 btmp += 20;
748 if (!lend_tobn(g, btmp, dsa_plen))
749 goto memerr;
750 btmp += dsa_plen;
751 if (!lend_tobn(pub_key, btmp, dsa_plen))
752 goto memerr;
753 btmp += dsa_plen;
754
755 DSA_set_ex_data(dkey, dsa_capi_idx, key);
756
757 if ((ret = EVP_PKEY_new()) == NULL)
758 goto memerr;
759
760 EVP_PKEY_assign_DSA(ret, dkey);
761 dkey = NULL;
762# endif
763 } else {
764 char algstr[10];
765 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
766 CAPIerr(CAPI_F_CAPI_GET_PKEY,
767 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
768 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
769 goto err;
770 }
771
772 err:
773 OPENSSL_free(pubkey);
774 if (!ret) {
775 RSA_free(rkey);
776# ifndef OPENSSL_NO_DSA
777 DSA_free(dkey);
778# endif
779 }
780
781 return ret;
782
783 memerr:
784 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
785 goto err;
786
787}
788
789static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
790 UI_METHOD *ui_method, void *callback_data)
791{
792 CAPI_CTX *ctx;
793 CAPI_KEY *key;
794 EVP_PKEY *ret;
795 ctx = ENGINE_get_ex_data(eng, capi_idx);
796
797 if (!ctx) {
798 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
799 return NULL;
800 }
801
802 key = capi_find_key(ctx, key_id);
803
804 if (!key)
805 return NULL;
806
807 ret = capi_get_pkey(eng, key);
808
809 if (!ret)
810 capi_free_key(key);
811 return ret;
812
813}
814
815/* CryptoAPI RSA operations */
816
817int capi_rsa_priv_enc(int flen, const unsigned char *from,
818 unsigned char *to, RSA *rsa, int padding)
819{
820 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
821 return -1;
822}
823
824int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
825 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
826{
827 ALG_ID alg;
828 HCRYPTHASH hash;
829 DWORD slen;
830 unsigned int i;
831 int ret = -1;
832 CAPI_KEY *capi_key;
833 CAPI_CTX *ctx;
834
835 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
836
837 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
838
839 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
840 if (!capi_key) {
841 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
842 return -1;
843 }
844/* Convert the signature type to a CryptoAPI algorithm ID */
845 switch (dtype) {
846 case NID_sha256:
847 alg = CALG_SHA_256;
848 break;
849
850 case NID_sha384:
851 alg = CALG_SHA_384;
852 break;
853
854 case NID_sha512:
855 alg = CALG_SHA_512;
856 break;
857
858 case NID_sha1:
859 alg = CALG_SHA1;
860 break;
861
862 case NID_md5:
863 alg = CALG_MD5;
864 break;
865
866 case NID_md5_sha1:
867 alg = CALG_SSL3_SHAMD5;
868 break;
869 default:
870 {
871 char algstr[10];
872 BIO_snprintf(algstr, 10, "%x", dtype);
873 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
874 ERR_add_error_data(2, "NID=0x", algstr);
875 return -1;
876 }
877 }
878
879/* Create the hash object */
880 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
881 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
882 capi_addlasterror();
883 return -1;
884 }
885/* Set the hash value to the value passed */
886
887 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
888 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
889 capi_addlasterror();
890 goto err;
891 }
892
893/* Finally sign it */
894 slen = RSA_size(rsa);
895 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
896 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
897 capi_addlasterror();
898 goto err;
899 } else {
900 ret = 1;
901 /* Inplace byte reversal of signature */
902 for (i = 0; i < slen / 2; i++) {
903 unsigned char c;
904 c = sigret[i];
905 sigret[i] = sigret[slen - i - 1];
906 sigret[slen - i - 1] = c;
907 }
908 *siglen = slen;
909 }
910
911 /* Now cleanup */
912
913 err:
914 CryptDestroyHash(hash);
915
916 return ret;
917}
918
919int capi_rsa_priv_dec(int flen, const unsigned char *from,
920 unsigned char *to, RSA *rsa, int padding)
921{
922 int i;
923 unsigned char *tmpbuf;
924 CAPI_KEY *capi_key;
925 CAPI_CTX *ctx;
926 DWORD dlen;
927
928 if (flen <= 0)
929 return flen;
930
931 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
932
933 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
934
935 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
936 if (!capi_key) {
937 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
938 return -1;
939 }
940
941 if (padding != RSA_PKCS1_PADDING) {
942 char errstr[10];
943 BIO_snprintf(errstr, 10, "%d", padding);
944 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
945 ERR_add_error_data(2, "padding=", errstr);
946 return -1;
947 }
948
949 /* Create temp reverse order version of input */
950 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) {
951 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
952 return -1;
953 }
954 for (i = 0; i < flen; i++)
955 tmpbuf[flen - i - 1] = from[i];
956
957 /* Finally decrypt it */
958 dlen = flen;
959 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &dlen)) {
960 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
961 capi_addlasterror();
962 OPENSSL_free(tmpbuf);
963 return -1;
964 } else
965 memcpy(to, tmpbuf, (flen = (int)dlen));
966
967 OPENSSL_free(tmpbuf);
968
969 return flen;
970}
971
972static int capi_rsa_free(RSA *rsa)
973{
974 CAPI_KEY *capi_key;
975 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
976 capi_free_key(capi_key);
977 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
978 return 1;
979}
980
981# ifndef OPENSSL_NO_DSA
982/* CryptoAPI DSA operations */
983
984static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
985 DSA *dsa)
986{
987 HCRYPTHASH hash;
988 DWORD slen;
989 DSA_SIG *ret = NULL;
990 CAPI_KEY *capi_key;
991 CAPI_CTX *ctx;
992 unsigned char csigbuf[40];
993
994 ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx);
995
996 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
997
998 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
999
1000 if (!capi_key) {
1001 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
1002 return NULL;
1003 }
1004
1005 if (dlen != 20) {
1006 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
1007 return NULL;
1008 }
1009
1010 /* Create the hash object */
1011 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
1012 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
1013 capi_addlasterror();
1014 return NULL;
1015 }
1016
1017 /* Set the hash value to the value passed */
1018 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
1019 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
1020 capi_addlasterror();
1021 goto err;
1022 }
1023
1024 /* Finally sign it */
1025 slen = sizeof(csigbuf);
1026 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1027 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1028 capi_addlasterror();
1029 goto err;
1030 } else {
1031 BIGNUM *r = BN_new(), *s = BN_new();
1032
1033 if (r == NULL || s == NULL
1034 || !lend_tobn(r, csigbuf, 20)
1035 || !lend_tobn(s, csigbuf + 20, 20)
1036 || (ret = DSA_SIG_new()) == NULL) {
1037 BN_free(r); /* BN_free checks for BIGNUM * being NULL */
1038 BN_free(s);
1039 goto err;
1040 }
1041 DSA_SIG_set0(ret, r, s);
1042 }
1043
1044 /* Now cleanup */
1045
1046 err:
1047 OPENSSL_cleanse(csigbuf, 40);
1048 CryptDestroyHash(hash);
1049 return ret;
1050}
1051
1052static int capi_dsa_free(DSA *dsa)
1053{
1054 CAPI_KEY *capi_key;
1055 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1056 capi_free_key(capi_key);
1057 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1058 return 1;
1059}
1060# endif
1061
1062static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
1063 va_list argptr)
1064{
1065 BIO *out;
1066
1067 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1068 return;
1069 out = BIO_new_file(ctx->debug_file, "a+");
1070 if (out == NULL) {
1071 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1072 return;
1073 }
1074 BIO_vprintf(out, format, argptr);
1075 BIO_free(out);
1076}
1077
1078static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
1079{
1080 va_list args;
1081 va_start(args, format);
1082 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1083 va_end(args);
1084}
1085
1086static void capi_addlasterror(void)
1087{
1088 capi_adderror(GetLastError());
1089}
1090
1091static void capi_adderror(DWORD err)
1092{
1093 char errstr[10];
1094 BIO_snprintf(errstr, 10, "%lX", err);
1095 ERR_add_error_data(2, "Error code= 0x", errstr);
1096}
1097
1098static char *wide_to_asc(LPCWSTR wstr)
1099{
1100 char *str;
1101 int len_0, sz;
1102
1103 if (!wstr)
1104 return NULL;
1105 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1106 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1107 if (!sz) {
1108 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1109 return NULL;
1110 }
1111 str = OPENSSL_malloc(sz);
1112 if (str == NULL) {
1113 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1114 return NULL;
1115 }
1116 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1117 OPENSSL_free(str);
1118 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1119 return NULL;
1120 }
1121 return str;
1122}
1123
1124static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1125 DWORD idx)
1126{
1127 DWORD len, err;
1128 LPTSTR name;
1129 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1130 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1131 err = GetLastError();
1132 if (err == ERROR_NO_MORE_ITEMS)
1133 return 2;
1134 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1135 capi_adderror(err);
1136 return 0;
1137 }
1138 name = OPENSSL_malloc(len);
1139 if (name == NULL) {
1140 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1141 return 0;
1142 }
1143 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1144 err = GetLastError();
1145 OPENSSL_free(name);
1146 if (err == ERROR_NO_MORE_ITEMS)
1147 return 2;
1148 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1149 capi_adderror(err);
1150 return 0;
1151 }
1152 if (sizeof(TCHAR) != sizeof(char)) {
1153 *pname = wide_to_asc((WCHAR *)name);
1154 OPENSSL_free(name);
1155 if (*pname == NULL)
1156 return 0;
1157 } else
1158 *pname = (char *)name;
1159 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1160 *ptype);
1161
1162 return 1;
1163}
1164
1165static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1166{
1167 DWORD idx, ptype;
1168 int ret;
1169 LPSTR provname = NULL;
1170 CAPI_trace(ctx, "capi_list_providers\n");
1171 BIO_printf(out, "Available CSPs:\n");
1172 for (idx = 0;; idx++) {
1173 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1174 if (ret == 2)
1175 break;
1176 if (ret == 0)
1177 break;
1178 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
1179 OPENSSL_free(provname);
1180 }
1181 return 1;
1182}
1183
1184static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1185{
1186 int ret = 1;
1187 HCRYPTPROV hprov;
1188 DWORD err, idx, flags, buflen = 0, clen;
1189 LPSTR cname;
1190 LPTSTR cspname = NULL;
1191
1192 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1193 ctx->csptype);
1194 if (ctx->cspname && sizeof(TCHAR) != sizeof(char)) {
1195 if ((clen =
1196 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))) {
1197 cspname = alloca(clen * sizeof(WCHAR));
1198 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1199 clen);
1200 }
1201 if (!cspname) {
1202 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1203 capi_addlasterror();
1204 return 0;
1205 }
1206 } else
1207 cspname = (TCHAR *)ctx->cspname;
1208 if (!CryptAcquireContext
1209 (&hprov, NULL, cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1210 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1211 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1212 capi_addlasterror();
1213 return 0;
1214 }
1215 if (!CryptGetProvParam
1216 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1217 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1218 capi_addlasterror();
1219 CryptReleaseContext(hprov, 0);
1220 return 0;
1221 }
1222 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1223 if (buflen == 0)
1224 buflen = 1024;
1225 cname = OPENSSL_malloc(buflen);
1226 if (cname == NULL) {
1227 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1228 goto err;
1229 }
1230
1231 for (idx = 0;; idx++) {
1232 clen = buflen;
1233 cname[0] = 0;
1234
1235 if (idx == 0)
1236 flags = CRYPT_FIRST;
1237 else
1238 flags = 0;
1239 if (!CryptGetProvParam
1240 (hprov, PP_ENUMCONTAINERS, (BYTE *) cname, &clen, flags)) {
1241 err = GetLastError();
1242 if (err == ERROR_NO_MORE_ITEMS)
1243 goto done;
1244 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1245 capi_adderror(err);
1246 goto err;
1247 }
1248 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1249 cname, clen, idx, flags);
1250 if (!cname[0] && (clen == buflen)) {
1251 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1252 goto done;
1253 }
1254 BIO_printf(out, "%lu. %s\n", idx, cname);
1255 }
1256 err:
1257
1258 ret = 0;
1259
1260 done:
1261 OPENSSL_free(cname);
1262 CryptReleaseContext(hprov, 0);
1263
1264 return ret;
1265}
1266
1267static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1268{
1269 DWORD len;
1270 CRYPT_KEY_PROV_INFO *pinfo;
1271
1272 if (!CertGetCertificateContextProperty
1273 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1274 return NULL;
1275 pinfo = OPENSSL_malloc(len);
1276 if (pinfo == NULL) {
1277 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1278 return NULL;
1279 }
1280 if (!CertGetCertificateContextProperty
1281 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1282 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1283 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1284 capi_addlasterror();
1285 OPENSSL_free(pinfo);
1286 return NULL;
1287 }
1288 return pinfo;
1289}
1290
1291static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1292 CRYPT_KEY_PROV_INFO * pinfo)
1293{
1294 char *provname = NULL, *contname = NULL;
1295 if (!pinfo) {
1296 BIO_printf(out, " No Private Key\n");
1297 return;
1298 }
1299 provname = wide_to_asc(pinfo->pwszProvName);
1300 contname = wide_to_asc(pinfo->pwszContainerName);
1301 if (!provname || !contname)
1302 goto err;
1303
1304 BIO_printf(out, " Private Key Info:\n");
1305 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
1306 pinfo->dwProvType);
1307 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
1308 pinfo->dwKeySpec);
1309 err:
1310 OPENSSL_free(provname);
1311 OPENSSL_free(contname);
1312}
1313
1314static char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1315{
1316 LPWSTR wfname;
1317 DWORD dlen;
1318
1319 CAPI_trace(ctx, "capi_cert_get_fname\n");
1320 if (!CertGetCertificateContextProperty
1321 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1322 return NULL;
1323 wfname = OPENSSL_malloc(dlen);
1324 if (wfname == NULL)
1325 return NULL;
1326 if (CertGetCertificateContextProperty
1327 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1328 char *fname = wide_to_asc(wfname);
1329 OPENSSL_free(wfname);
1330 return fname;
1331 }
1332 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1333 capi_addlasterror();
1334
1335 OPENSSL_free(wfname);
1336 return NULL;
1337}
1338
1339static void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
1340{
1341 X509 *x;
1342 const unsigned char *p;
1343 unsigned long flags = ctx->dump_flags;
1344 if (flags & CAPI_DMP_FNAME) {
1345 char *fname;
1346 fname = capi_cert_get_fname(ctx, cert);
1347 if (fname) {
1348 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1349 OPENSSL_free(fname);
1350 } else
1351 BIO_printf(out, " <No Friendly Name>\n");
1352 }
1353
1354 p = cert->pbCertEncoded;
1355 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1356 if (!x)
1357 BIO_printf(out, " <Can't parse certificate>\n");
1358 if (flags & CAPI_DMP_SUMMARY) {
1359 BIO_printf(out, " Subject: ");
1360 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1361 BIO_printf(out, "\n Issuer: ");
1362 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1363 BIO_printf(out, "\n");
1364 }
1365 if (flags & CAPI_DMP_FULL)
1366 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1367
1368 if (flags & CAPI_DMP_PKEYINFO) {
1369 CRYPT_KEY_PROV_INFO *pinfo;
1370 pinfo = capi_get_prov_info(ctx, cert);
1371 capi_dump_prov_info(ctx, out, pinfo);
1372 OPENSSL_free(pinfo);
1373 }
1374
1375 if (flags & CAPI_DMP_PEM)
1376 PEM_write_bio_X509(out, x);
1377 X509_free(x);
1378}
1379
1380static HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
1381{
1382 HCERTSTORE hstore;
1383
1384 if (!storename)
1385 storename = ctx->storename;
1386 if (!storename)
1387 storename = "MY";
1388 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1389
1390 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1391 ctx->store_flags, storename);
1392 if (!hstore) {
1393 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1394 capi_addlasterror();
1395 }
1396 return hstore;
1397}
1398
1399int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1400{
1401 char *storename;
1402 int idx;
1403 int ret = 1;
1404 HCERTSTORE hstore;
1405 PCCERT_CONTEXT cert = NULL;
1406
1407 storename = ctx->storename;
1408 if (!storename)
1409 storename = "MY";
1410 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1411
1412 hstore = capi_open_store(ctx, storename);
1413 if (!hstore)
1414 return 0;
1415 if (id) {
1416 cert = capi_find_cert(ctx, id, hstore);
1417 if (!cert) {
1418 ret = 0;
1419 goto err;
1420 }
1421 capi_dump_cert(ctx, out, cert);
1422 CertFreeCertificateContext(cert);
1423 } else {
1424 for (idx = 0;; idx++) {
1425 cert = CertEnumCertificatesInStore(hstore, cert);
1426 if (!cert)
1427 break;
1428 BIO_printf(out, "Certificate %d\n", idx);
1429 capi_dump_cert(ctx, out, cert);
1430 }
1431 }
1432 err:
1433 CertCloseStore(hstore, 0);
1434 return ret;
1435}
1436
1437static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1438 HCERTSTORE hstore)
1439{
1440 PCCERT_CONTEXT cert = NULL;
1441 char *fname = NULL;
1442 int match;
1443 switch (ctx->lookup_method) {
1444 case CAPI_LU_SUBSTR:
1445 return CertFindCertificateInStore(hstore,
1446 X509_ASN_ENCODING, 0,
1447 CERT_FIND_SUBJECT_STR_A, id, NULL);
1448 case CAPI_LU_FNAME:
1449 for (;;) {
1450 cert = CertEnumCertificatesInStore(hstore, cert);
1451 if (!cert)
1452 return NULL;
1453 fname = capi_cert_get_fname(ctx, cert);
1454 if (fname) {
1455 if (strcmp(fname, id))
1456 match = 0;
1457 else
1458 match = 1;
1459 OPENSSL_free(fname);
1460 if (match)
1461 return cert;
1462 }
1463 }
1464 default:
1465 return NULL;
1466 }
1467}
1468
1469static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const TCHAR *contname,
1470 TCHAR *provname, DWORD ptype, DWORD keyspec)
1471{
1472 DWORD dwFlags = 0;
1473 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1474
1475 if (key == NULL)
1476 return NULL;
1477 /* If PROV_RSA_AES supported use it instead */
1478 if (ptype == PROV_RSA_FULL && use_aes_csp) {
1479 provname = NULL;
1480 ptype = PROV_RSA_AES;
1481 CAPI_trace(ctx, "capi_get_key, contname=%s, RSA_AES_CSP\n", contname);
1482 } else if (sizeof(TCHAR) == sizeof(char)) {
1483 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1484 contname, provname, ptype);
1485 } else if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1486 /* above 'if' is optimization to minimize malloc-ations */
1487 char *_contname = wide_to_asc((WCHAR *)contname);
1488 char *_provname = wide_to_asc((WCHAR *)provname);
1489
1490 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1491 _contname, _provname, ptype);
1492 OPENSSL_free(_provname);
1493 OPENSSL_free(_contname);
1494 }
1495 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1496 dwFlags = CRYPT_MACHINE_KEYSET;
1497 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, dwFlags)) {
1498 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1499 capi_addlasterror();
1500 goto err;
1501 }
1502 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1503 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1504 capi_addlasterror();
1505 CryptReleaseContext(key->hprov, 0);
1506 goto err;
1507 }
1508 key->keyspec = keyspec;
1509 key->pcert = NULL;
1510 return key;
1511
1512 err:
1513 OPENSSL_free(key);
1514 return NULL;
1515}
1516
1517static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1518{
1519 CAPI_KEY *key = NULL;
1520 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1521 char *provname = NULL, *contname = NULL;
1522 pinfo = capi_get_prov_info(ctx, cert);
1523 if (!pinfo)
1524 goto err;
1525 if (sizeof(TCHAR) != sizeof(char))
1526 key = capi_get_key(ctx, (TCHAR *)pinfo->pwszContainerName,
1527 (TCHAR *)pinfo->pwszProvName,
1528 pinfo->dwProvType, pinfo->dwKeySpec);
1529 else {
1530 provname = wide_to_asc(pinfo->pwszProvName);
1531 contname = wide_to_asc(pinfo->pwszContainerName);
1532 if (!provname || !contname)
1533 goto err;
1534 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1535 pinfo->dwProvType, pinfo->dwKeySpec);
1536 }
1537
1538 err:
1539 OPENSSL_free(pinfo);
1540 OPENSSL_free(provname);
1541 OPENSSL_free(contname);
1542 return key;
1543}
1544
1545CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1546{
1547 PCCERT_CONTEXT cert;
1548 HCERTSTORE hstore;
1549 CAPI_KEY *key = NULL;
1550 switch (ctx->lookup_method) {
1551 case CAPI_LU_SUBSTR:
1552 case CAPI_LU_FNAME:
1553 hstore = capi_open_store(ctx, NULL);
1554 if (!hstore)
1555 return NULL;
1556 cert = capi_find_cert(ctx, id, hstore);
1557 if (cert) {
1558 key = capi_get_cert_key(ctx, cert);
1559 CertFreeCertificateContext(cert);
1560 }
1561 CertCloseStore(hstore, 0);
1562 break;
1563
1564 case CAPI_LU_CONTNAME:
1565 if (sizeof(TCHAR) != sizeof(char)) {
1566 WCHAR *contname, *provname;
1567 DWORD len;
1568
1569 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1570 (contname = alloca(len * sizeof(WCHAR)),
1571 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1572 (len =
1573 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))
1574 && (provname =
1575 alloca(len * sizeof(WCHAR)), MultiByteToWideChar(CP_ACP,
1576 0,
1577 ctx->cspname,
1578 -1,
1579 provname,
1580 len)))
1581 key =
1582 capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1583 ctx->csptype, ctx->keytype);
1584 } else
1585 key = capi_get_key(ctx, (TCHAR *)id,
1586 (TCHAR *)ctx->cspname,
1587 ctx->csptype, ctx->keytype);
1588 break;
1589 }
1590
1591 return key;
1592}
1593
1594void capi_free_key(CAPI_KEY * key)
1595{
1596 if (!key)
1597 return;
1598 CryptDestroyKey(key->key);
1599 CryptReleaseContext(key->hprov, 0);
1600 if (key->pcert)
1601 CertFreeCertificateContext(key->pcert);
1602 OPENSSL_free(key);
1603}
1604
1605/* Initialize a CAPI_CTX structure */
1606
1607static CAPI_CTX *capi_ctx_new(void)
1608{
1609 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
1610
1611 if (ctx == NULL) {
1612 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1613 return NULL;
1614 }
1615 ctx->csptype = PROV_RSA_FULL;
1616 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1617 ctx->keytype = AT_KEYEXCHANGE;
1618 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1619 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1620 ctx->lookup_method = CAPI_LU_SUBSTR;
1621 ctx->client_cert_select = cert_select_simple;
1622 return ctx;
1623}
1624
1625static void capi_ctx_free(CAPI_CTX * ctx)
1626{
1627 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1628 if (!ctx)
1629 return;
1630 OPENSSL_free(ctx->cspname);
1631 OPENSSL_free(ctx->debug_file);
1632 OPENSSL_free(ctx->storename);
1633 OPENSSL_free(ctx->ssl_client_store);
1634 OPENSSL_free(ctx);
1635}
1636
1637static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1638 int check)
1639{
1640 LPSTR tmpcspname;
1641
1642 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1643 if (check) {
1644 HCRYPTPROV hprov;
1645 LPTSTR name = NULL;
1646
1647 if (sizeof(TCHAR) != sizeof(char)) {
1648 DWORD len;
1649 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1650 name = alloca(len * sizeof(WCHAR));
1651 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1652 }
1653 } else
1654 name = (TCHAR *)pname;
1655
1656 if (!name || !CryptAcquireContext(&hprov, NULL, name, type,
1657 CRYPT_VERIFYCONTEXT)) {
1658 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1659 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1660 capi_addlasterror();
1661 return 0;
1662 }
1663 CryptReleaseContext(hprov, 0);
1664 }
1665 tmpcspname = OPENSSL_strdup(pname);
1666 if (tmpcspname == NULL) {
1667 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, ERR_R_MALLOC_FAILURE);
1668 return 0;
1669 }
1670 OPENSSL_free(ctx->cspname);
1671 ctx->cspname = tmpcspname;
1672 ctx->csptype = type;
1673 return 1;
1674}
1675
1676static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1677{
1678 LPSTR pname;
1679 DWORD type;
1680 int res;
1681 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1682 return 0;
1683 res = capi_ctx_set_provname(ctx, pname, type, 0);
1684 OPENSSL_free(pname);
1685 return res;
1686}
1687
1688static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1689{
1690 int i;
1691 X509_NAME *nm;
1692 /* Special case: empty list: match anything */
1693 if (sk_X509_NAME_num(ca_dn) <= 0)
1694 return 1;
1695 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1696 nm = sk_X509_NAME_value(ca_dn, i);
1697 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1698 return 1;
1699 }
1700 return 0;
1701}
1702
1703static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1704 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1705 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1706 UI_METHOD *ui_method,
1707 void *callback_data)
1708{
1709 STACK_OF(X509) *certs = NULL;
1710 X509 *x;
1711 char *storename;
1712 const unsigned char *p;
1713 int i, client_cert_idx;
1714 HCERTSTORE hstore;
1715 PCCERT_CONTEXT cert = NULL, excert = NULL;
1716 CAPI_CTX *ctx;
1717 CAPI_KEY *key;
1718 ctx = ENGINE_get_ex_data(e, capi_idx);
1719
1720 *pcert = NULL;
1721 *pkey = NULL;
1722
1723 storename = ctx->ssl_client_store;
1724 if (!storename)
1725 storename = "MY";
1726
1727 hstore = capi_open_store(ctx, storename);
1728 if (!hstore)
1729 return 0;
1730 /* Enumerate all certificates collect any matches */
1731 for (i = 0;; i++) {
1732 cert = CertEnumCertificatesInStore(hstore, cert);
1733 if (!cert)
1734 break;
1735 p = cert->pbCertEncoded;
1736 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1737 if (!x) {
1738 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1739 continue;
1740 }
1741 if (cert_issuer_match(ca_dn, x)
1742 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1743 key = capi_get_cert_key(ctx, cert);
1744 if (!key) {
1745 X509_free(x);
1746 continue;
1747 }
1748 /*
1749 * Match found: attach extra data to it so we can retrieve the
1750 * key later.
1751 */
1752 excert = CertDuplicateCertificateContext(cert);
1753 key->pcert = excert;
1754 X509_set_ex_data(x, cert_capi_idx, key);
1755
1756 if (!certs)
1757 certs = sk_X509_new_null();
1758
1759 sk_X509_push(certs, x);
1760 } else
1761 X509_free(x);
1762
1763 }
1764
1765 if (cert)
1766 CertFreeCertificateContext(cert);
1767 if (hstore)
1768 CertCloseStore(hstore, 0);
1769
1770 if (!certs)
1771 return 0;
1772
1773 /* Select the appropriate certificate */
1774
1775 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1776
1777 /* Set the selected certificate and free the rest */
1778
1779 for (i = 0; i < sk_X509_num(certs); i++) {
1780 x = sk_X509_value(certs, i);
1781 if (i == client_cert_idx)
1782 *pcert = x;
1783 else {
1784 key = X509_get_ex_data(x, cert_capi_idx);
1785 capi_free_key(key);
1786 X509_free(x);
1787 }
1788 }
1789
1790 sk_X509_free(certs);
1791
1792 if (!*pcert)
1793 return 0;
1794
1795 /* Setup key for selected certificate */
1796
1797 key = X509_get_ex_data(*pcert, cert_capi_idx);
1798 *pkey = capi_get_pkey(e, key);
1799 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1800
1801 return 1;
1802
1803}
1804
1805/* Simple client cert selection function: always select first */
1806
1807static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1808{
1809 return 0;
1810}
1811
1812# ifdef OPENSSL_CAPIENG_DIALOG
1813
1814/*
1815 * More complex cert selection function, using standard function
1816 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1817 */
1818
1819/*
1820 * Definitions which are in cryptuiapi.h but this is not present in older
1821 * versions of headers.
1822 */
1823
1824# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1825# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1826# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1827# endif
1828
1829# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1830# define dlg_prompt L"Select a certificate to use for authentication"
1831# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1832 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1833
1834static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1835{
1836 X509 *x;
1837 HCERTSTORE dstore;
1838 PCCERT_CONTEXT cert;
1839 CAPI_CTX *ctx;
1840 CAPI_KEY *key;
1841 HWND hwnd;
1842 int i, idx = -1;
1843 if (sk_X509_num(certs) == 1)
1844 return 0;
1845 ctx = ENGINE_get_ex_data(e, capi_idx);
1846 /* Create an in memory store of certificates */
1847 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1848 CERT_STORE_CREATE_NEW_FLAG, NULL);
1849 if (!dstore) {
1850 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1851 capi_addlasterror();
1852 goto err;
1853 }
1854 /* Add all certificates to store */
1855 for (i = 0; i < sk_X509_num(certs); i++) {
1856 x = sk_X509_value(certs, i);
1857 key = X509_get_ex_data(x, cert_capi_idx);
1858
1859 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1860 CERT_STORE_ADD_NEW, NULL)) {
1861 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1862 capi_addlasterror();
1863 goto err;
1864 }
1865
1866 }
1867 hwnd = GetForegroundWindow();
1868 if (!hwnd)
1869 hwnd = GetActiveWindow();
1870 if (!hwnd && ctx->getconswindow)
1871 hwnd = ctx->getconswindow();
1872 /* Call dialog to select one */
1873 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1874 dlg_columns, 0, NULL);
1875
1876 /* Find matching cert from list */
1877 if (cert) {
1878 for (i = 0; i < sk_X509_num(certs); i++) {
1879 x = sk_X509_value(certs, i);
1880 key = X509_get_ex_data(x, cert_capi_idx);
1881 if (CertCompareCertificate
1882 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1883 key->pcert->pCertInfo)) {
1884 idx = i;
1885 break;
1886 }
1887 }
1888 }
1889
1890 err:
1891 if (dstore)
1892 CertCloseStore(dstore, 0);
1893 return idx;
1894
1895}
1896# endif
1897
1898#else /* !__COMPILE_CAPIENG */
1899# include <openssl/engine.h>
1900# ifndef OPENSSL_NO_DYNAMIC_ENGINE
1901OPENSSL_EXPORT
1902 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1903OPENSSL_EXPORT
1904 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1905{
1906 return 0;
1907}
1908
1909IMPLEMENT_DYNAMIC_CHECK_FN()
1910# else
1911void engine_load_capi_int(void);
1912void engine_load_capi_int(void)
1913{
1914}
1915# endif
1916#endif
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