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Raise the AFL_MAP_SIZE to accommodate future growth
[thirdparty/openssl.git] / engines / e_capi.c
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
105 static const char *engine_capi_id = "capi";
106 static const char *engine_capi_name = "CryptoAPI ENGINE";
107
108 typedef struct CAPI_CTX_st CAPI_CTX;
109 typedef struct CAPI_KEY_st CAPI_KEY;
110
111 static void capi_addlasterror(void);
112 static void capi_adderror(DWORD err);
113
114 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
115
116 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
117 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
118 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
119 void capi_free_key(CAPI_KEY *key);
120
121 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
122 HCERTSTORE hstore);
123
124 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
125
126 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
127 UI_METHOD *ui_method, void *callback_data);
128 static int capi_rsa_sign(int dtype, const unsigned char *m,
129 unsigned int m_len, unsigned char *sigret,
130 unsigned int *siglen, const RSA *rsa);
131 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
132 unsigned char *to, RSA *rsa, int padding);
133 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
134 unsigned char *to, RSA *rsa, int padding);
135 static int capi_rsa_free(RSA *rsa);
136
137 # ifndef OPENSSL_NO_DSA
138 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
139 DSA *dsa);
140 static int capi_dsa_free(DSA *dsa);
141 # endif
142
143 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
144 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
145 EVP_PKEY **pkey, STACK_OF(X509) **pother,
146 UI_METHOD *ui_method,
147 void *callback_data);
148
149 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
150 # ifdef OPENSSL_CAPIENG_DIALOG
151 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
152 # endif
153
154 void engine_load_capi_int(void);
155
156 typedef PCCERT_CONTEXT(WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
157 LPCWSTR, DWORD, DWORD, void *);
158 typedef HWND(WINAPI *GETCONSWIN)(void);
159
160 /*
161 * This structure contains CAPI ENGINE specific data: it contains various
162 * global options and affects how other functions behave.
163 */
164
165 # define CAPI_DBG_TRACE 2
166 # define CAPI_DBG_ERROR 1
167
168 struct CAPI_CTX_st {
169 int debug_level;
170 char *debug_file;
171 /* Parameters to use for container lookup */
172 DWORD keytype;
173 LPSTR cspname;
174 DWORD csptype;
175 /* Certificate store name to use */
176 LPSTR storename;
177 LPSTR ssl_client_store;
178 /* System store flags */
179 DWORD store_flags;
180 /* Lookup string meanings in load_private_key */
181 # define CAPI_LU_SUBSTR 1 /* Substring of subject: uses "storename" */
182 # define CAPI_LU_FNAME 2 /* Friendly name: uses storename */
183 # define CAPI_LU_CONTNAME 3 /* Container name: uses cspname, keytype */
184 int lookup_method;
185 /* Info to dump with dumpcerts option */
186 # define CAPI_DMP_SUMMARY 0x1 /* Issuer and serial name strings */
187 # define CAPI_DMP_FNAME 0x2 /* Friendly name */
188 # define CAPI_DMP_FULL 0x4 /* Full X509_print dump */
189 # define CAPI_DMP_PEM 0x8 /* Dump PEM format certificate */
190 # define CAPI_DMP_PSKEY 0x10 /* Dump pseudo key (if possible) */
191 # define CAPI_DMP_PKEYINFO 0x20 /* Dump key info (if possible) */
192 DWORD dump_flags;
193 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
194 CERTDLG certselectdlg;
195 GETCONSWIN getconswindow;
196 };
197
198 static CAPI_CTX *capi_ctx_new(void);
199 static void capi_ctx_free(CAPI_CTX *ctx);
200 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
201 int check);
202 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
203
204 # define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
205 # define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
206 # define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
207 # define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
208 # define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
209 # define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
210 # define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
211 # define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
212 # define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
213 # define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
214 # define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
215 # define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
216 # define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
217 # define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
218
219 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
220 {CAPI_CMD_LIST_CERTS,
221 "list_certs",
222 "List all certificates in store",
223 ENGINE_CMD_FLAG_NO_INPUT},
224 {CAPI_CMD_LOOKUP_CERT,
225 "lookup_cert",
226 "Lookup and output certificates",
227 ENGINE_CMD_FLAG_STRING},
228 {CAPI_CMD_DEBUG_LEVEL,
229 "debug_level",
230 "debug level (1=errors, 2=trace)",
231 ENGINE_CMD_FLAG_NUMERIC},
232 {CAPI_CMD_DEBUG_FILE,
233 "debug_file",
234 "debugging filename)",
235 ENGINE_CMD_FLAG_STRING},
236 {CAPI_CMD_KEYTYPE,
237 "key_type",
238 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
239 ENGINE_CMD_FLAG_NUMERIC},
240 {CAPI_CMD_LIST_CSPS,
241 "list_csps",
242 "List all CSPs",
243 ENGINE_CMD_FLAG_NO_INPUT},
244 {CAPI_CMD_SET_CSP_IDX,
245 "csp_idx",
246 "Set CSP by index",
247 ENGINE_CMD_FLAG_NUMERIC},
248 {CAPI_CMD_SET_CSP_NAME,
249 "csp_name",
250 "Set CSP name, (default CSP used if not specified)",
251 ENGINE_CMD_FLAG_STRING},
252 {CAPI_CMD_SET_CSP_TYPE,
253 "csp_type",
254 "Set CSP type, (default RSA_PROV_FULL)",
255 ENGINE_CMD_FLAG_NUMERIC},
256 {CAPI_CMD_LIST_CONTAINERS,
257 "list_containers",
258 "list container names",
259 ENGINE_CMD_FLAG_NO_INPUT},
260 {CAPI_CMD_LIST_OPTIONS,
261 "list_options",
262 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
263 "32=private key info)",
264 ENGINE_CMD_FLAG_NUMERIC},
265 {CAPI_CMD_LOOKUP_METHOD,
266 "lookup_method",
267 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
268 ENGINE_CMD_FLAG_NUMERIC},
269 {CAPI_CMD_STORE_NAME,
270 "store_name",
271 "certificate store name, default \"MY\"",
272 ENGINE_CMD_FLAG_STRING},
273 {CAPI_CMD_STORE_FLAGS,
274 "store_flags",
275 "Certificate store flags: 1 = system store",
276 ENGINE_CMD_FLAG_NUMERIC},
277
278 {0, NULL, NULL, 0}
279 };
280
281 static int capi_idx = -1;
282 static int rsa_capi_idx = -1;
283 static int dsa_capi_idx = -1;
284 static int cert_capi_idx = -1;
285
286 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
287 {
288 int ret = 1;
289 CAPI_CTX *ctx;
290 BIO *out;
291 LPSTR tmpstr;
292 if (capi_idx == -1) {
293 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
294 return 0;
295 }
296 ctx = ENGINE_get_ex_data(e, capi_idx);
297 out = BIO_new_fp(stdout, BIO_NOCLOSE);
298 if (out == NULL) {
299 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
300 return 0;
301 }
302 switch (cmd) {
303 case CAPI_CMD_LIST_CSPS:
304 ret = capi_list_providers(ctx, out);
305 break;
306
307 case CAPI_CMD_LIST_CERTS:
308 ret = capi_list_certs(ctx, out, NULL);
309 break;
310
311 case CAPI_CMD_LOOKUP_CERT:
312 ret = capi_list_certs(ctx, out, p);
313 break;
314
315 case CAPI_CMD_LIST_CONTAINERS:
316 ret = capi_list_containers(ctx, out);
317 break;
318
319 case CAPI_CMD_STORE_NAME:
320 tmpstr = OPENSSL_strdup(p);
321 if (tmpstr != NULL) {
322 OPENSSL_free(ctx->storename);
323 ctx->storename = tmpstr;
324 CAPI_trace(ctx, "Setting store name to %s\n", p);
325 } else {
326 ret = 0;
327 }
328 break;
329
330 case CAPI_CMD_STORE_FLAGS:
331 if (i & 1) {
332 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
333 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
334 } else {
335 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
336 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
337 }
338 CAPI_trace(ctx, "Setting flags to %d\n", i);
339 break;
340
341 case CAPI_CMD_DEBUG_LEVEL:
342 ctx->debug_level = (int)i;
343 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
344 break;
345
346 case CAPI_CMD_DEBUG_FILE:
347 tmpstr = OPENSSL_strdup(p);
348 if (tmpstr != NULL) {
349 ctx->debug_file = tmpstr;
350 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
351 } else {
352 ret = 0;
353 }
354 break;
355
356 case CAPI_CMD_KEYTYPE:
357 ctx->keytype = i;
358 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
359 break;
360
361 case CAPI_CMD_SET_CSP_IDX:
362 ret = capi_ctx_set_provname_idx(ctx, i);
363 break;
364
365 case CAPI_CMD_LIST_OPTIONS:
366 ctx->dump_flags = i;
367 break;
368
369 case CAPI_CMD_LOOKUP_METHOD:
370 if (i < 1 || i > 3) {
371 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
372 BIO_free(out);
373 return 0;
374 }
375 ctx->lookup_method = i;
376 break;
377
378 case CAPI_CMD_SET_CSP_NAME:
379 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
380 break;
381
382 case CAPI_CMD_SET_CSP_TYPE:
383 ctx->csptype = i;
384 break;
385
386 default:
387 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
388 ret = 0;
389 }
390
391 BIO_free(out);
392 return ret;
393
394 }
395
396 static RSA_METHOD *capi_rsa_method = NULL;
397 # ifndef OPENSSL_NO_DSA
398 static DSA_METHOD *capi_dsa_method = NULL;
399 # endif
400
401 static int use_aes_csp = 0;
402 static const WCHAR rsa_aes_cspname[] =
403 L"Microsoft Enhanced RSA and AES Cryptographic Provider";
404 static const WCHAR rsa_enh_cspname[] =
405 L"Microsoft Enhanced Cryptographic Provider v1.0";
406
407 static int capi_init(ENGINE *e)
408 {
409 CAPI_CTX *ctx;
410 const RSA_METHOD *ossl_rsa_meth;
411 # ifndef OPENSSL_NO_DSA
412 const DSA_METHOD *ossl_dsa_meth;
413 # endif
414 HCRYPTPROV hprov;
415
416 if (capi_idx < 0) {
417 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
418 if (capi_idx < 0) {
419 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_ENGINE_LIB);
420 goto err;
421 }
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 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_RSA_LIB);
441 goto err;
442 }
443
444 # ifndef OPENSSL_NO_DSA
445 /* Setup DSA Method */
446 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
447 ossl_dsa_meth = DSA_OpenSSL();
448 if (!DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign)
449 || !DSA_meth_set_verify(capi_dsa_method,
450 DSA_meth_get_verify(ossl_dsa_meth))
451 || !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free)
452 || !DSA_meth_set_mod_exp(capi_dsa_method,
453 DSA_meth_get_mod_exp(ossl_dsa_meth))
454 || !DSA_meth_set_bn_mod_exp(capi_dsa_method,
455 DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) {
456 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_DSA_LIB);
457 goto err;
458 }
459 # endif
460 }
461
462 ctx = capi_ctx_new();
463 if (ctx == NULL) {
464 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_CAPI_LIB);
465 goto err;
466 }
467
468 ENGINE_set_ex_data(e, capi_idx, ctx);
469
470 # ifdef OPENSSL_CAPIENG_DIALOG
471 {
472 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
473 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
474 if (cryptui)
475 ctx->certselectdlg =
476 (CERTDLG) GetProcAddress(cryptui,
477 "CryptUIDlgSelectCertificateFromStore");
478 if (kernel)
479 ctx->getconswindow =
480 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
481 if (cryptui && !OPENSSL_isservice())
482 ctx->client_cert_select = cert_select_dialog;
483 }
484 # endif
485
486 /* See if there is RSA+AES CSP */
487 if (CryptAcquireContextW(&hprov, NULL, rsa_aes_cspname, PROV_RSA_AES,
488 CRYPT_VERIFYCONTEXT)) {
489 use_aes_csp = 1;
490 CryptReleaseContext(hprov, 0);
491 }
492
493 return 1;
494
495 err:
496 return 0;
497 }
498
499 static int capi_destroy(ENGINE *e)
500 {
501 RSA_meth_free(capi_rsa_method);
502 capi_rsa_method = NULL;
503 # ifndef OPENSSL_NO_DSA
504 DSA_meth_free(capi_dsa_method);
505 capi_dsa_method = NULL;
506 # endif
507 ERR_unload_CAPI_strings();
508 return 1;
509 }
510
511 static int capi_finish(ENGINE *e)
512 {
513 CAPI_CTX *ctx;
514 ctx = ENGINE_get_ex_data(e, capi_idx);
515 capi_ctx_free(ctx);
516 ENGINE_set_ex_data(e, capi_idx, NULL);
517 return 1;
518 }
519
520 /*
521 * CryptoAPI key application data. This contains a handle to the private key
522 * container (for sign operations) and a handle to the key (for decrypt
523 * operations).
524 */
525
526 struct CAPI_KEY_st {
527 /* Associated certificate context (if any) */
528 PCCERT_CONTEXT pcert;
529 HCRYPTPROV hprov;
530 HCRYPTKEY key;
531 DWORD keyspec;
532 };
533
534 static int bind_capi(ENGINE *e)
535 {
536 capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0);
537 if (capi_rsa_method == NULL)
538 return 0;
539 # ifndef OPENSSL_NO_DSA
540 capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0);
541 if (capi_dsa_method == NULL)
542 goto memerr;
543 # endif
544 if (!ENGINE_set_id(e, engine_capi_id)
545 || !ENGINE_set_name(e, engine_capi_name)
546 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
547 || !ENGINE_set_init_function(e, capi_init)
548 || !ENGINE_set_finish_function(e, capi_finish)
549 || !ENGINE_set_destroy_function(e, capi_destroy)
550 || !ENGINE_set_RSA(e, capi_rsa_method)
551 # ifndef OPENSSL_NO_DSA
552 || !ENGINE_set_DSA(e, capi_dsa_method)
553 # endif
554 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
555 || !ENGINE_set_load_ssl_client_cert_function(e,
556 capi_load_ssl_client_cert)
557 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
558 || !ENGINE_set_ctrl_function(e, capi_ctrl))
559 goto memerr;
560 ERR_load_CAPI_strings();
561
562 return 1;
563 memerr:
564 RSA_meth_free(capi_rsa_method);
565 capi_rsa_method = NULL;
566 # ifndef OPENSSL_NO_DSA
567 DSA_meth_free(capi_dsa_method);
568 capi_dsa_method = NULL;
569 # endif
570 return 0;
571 }
572
573 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
574 static int bind_helper(ENGINE *e, const char *id)
575 {
576 if (id && (strcmp(id, engine_capi_id) != 0))
577 return 0;
578 if (!bind_capi(e))
579 return 0;
580 return 1;
581 }
582
583 IMPLEMENT_DYNAMIC_CHECK_FN()
584 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
585 # else
586 static ENGINE *engine_capi(void)
587 {
588 ENGINE *ret = ENGINE_new();
589 if (ret == NULL)
590 return NULL;
591 if (!bind_capi(ret)) {
592 ENGINE_free(ret);
593 return NULL;
594 }
595 return ret;
596 }
597
598 void engine_load_capi_int(void)
599 {
600 /* Copied from eng_[openssl|dyn].c */
601 ENGINE *toadd = engine_capi();
602 if (!toadd)
603 return;
604 ERR_set_mark();
605 ENGINE_add(toadd);
606 /*
607 * If the "add" worked, it gets a structural reference. So either way, we
608 * release our just-created reference.
609 */
610 ENGINE_free(toadd);
611 /*
612 * If the "add" didn't work, it was probably a conflict because it was
613 * already added (eg. someone calling ENGINE_load_blah then calling
614 * ENGINE_load_builtin_engines() perhaps).
615 */
616 ERR_pop_to_mark();
617 }
618 # endif
619
620 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
621 {
622 int i;
623 /*
624 * Reverse buffer in place: since this is a keyblob structure that will
625 * be freed up after conversion anyway it doesn't matter if we change
626 * it.
627 */
628 for (i = 0; i < binlen / 2; i++) {
629 unsigned char c;
630 c = bin[i];
631 bin[i] = bin[binlen - i - 1];
632 bin[binlen - i - 1] = c;
633 }
634
635 if (!BN_bin2bn(bin, binlen, bn))
636 return 0;
637 return 1;
638 }
639
640 /* Given a CAPI_KEY get an EVP_PKEY structure */
641
642 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
643 {
644 unsigned char *pubkey = NULL;
645 DWORD len;
646 BLOBHEADER *bh;
647 RSA *rkey = NULL;
648 DSA *dkey = NULL;
649 EVP_PKEY *ret = NULL;
650 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
651 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
652 capi_addlasterror();
653 return NULL;
654 }
655
656 pubkey = OPENSSL_malloc(len);
657
658 if (pubkey == NULL)
659 goto err;
660
661 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
662 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
663 capi_addlasterror();
664 goto err;
665 }
666
667 bh = (BLOBHEADER *) pubkey;
668 if (bh->bType != PUBLICKEYBLOB) {
669 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
670 goto err;
671 }
672 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
673 RSAPUBKEY *rp;
674 DWORD rsa_modlen;
675 BIGNUM *e = NULL, *n = NULL;
676 unsigned char *rsa_modulus;
677 rp = (RSAPUBKEY *) (bh + 1);
678 if (rp->magic != 0x31415352) {
679 char magstr[10];
680 BIO_snprintf(magstr, 10, "%lx", rp->magic);
681 CAPIerr(CAPI_F_CAPI_GET_PKEY,
682 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
683 ERR_add_error_data(2, "magic=0x", magstr);
684 goto err;
685 }
686 rsa_modulus = (unsigned char *)(rp + 1);
687 rkey = RSA_new_method(eng);
688 if (!rkey) {
689 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_RSA_LIB);
690 goto err;
691 }
692
693 e = BN_new();
694 n = BN_new();
695
696 if (e == NULL || n == NULL) {
697 BN_free(e);
698 BN_free(n);
699 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_BN_LIB);
700 goto err;
701 }
702
703 RSA_set0_key(rkey, n, e, NULL);
704
705 if (!BN_set_word(e, rp->pubexp)) {
706 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_BN_LIB);
707 goto err;
708 }
709
710 rsa_modlen = rp->bitlen / 8;
711 if (!lend_tobn(n, rsa_modulus, rsa_modlen)) {
712 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_BN_LIB);
713 goto err;
714 }
715
716 RSA_set_ex_data(rkey, rsa_capi_idx, key);
717
718 if ((ret = EVP_PKEY_new()) == NULL) {
719 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_EVP_LIB);
720 goto err;
721 }
722
723 EVP_PKEY_assign_RSA(ret, rkey);
724 rkey = NULL;
725
726 # ifndef OPENSSL_NO_DSA
727 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
728 DSSPUBKEY *dp;
729 DWORD dsa_plen;
730 unsigned char *btmp;
731 BIGNUM *p, *q, *g, *pub_key;
732 dp = (DSSPUBKEY *) (bh + 1);
733 if (dp->magic != 0x31535344) {
734 char magstr[10];
735 BIO_snprintf(magstr, 10, "%lx", dp->magic);
736 CAPIerr(CAPI_F_CAPI_GET_PKEY,
737 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
738 ERR_add_error_data(2, "magic=0x", magstr);
739 goto err;
740 }
741 dsa_plen = dp->bitlen / 8;
742 btmp = (unsigned char *)(dp + 1);
743 dkey = DSA_new_method(eng);
744 if (!dkey) {
745 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_DSA_LIB);
746 goto err;
747 }
748 p = BN_new();
749 q = BN_new();
750 g = BN_new();
751 pub_key = BN_new();
752 if (p == NULL || q == NULL || g == NULL || pub_key == NULL) {
753 BN_free(p);
754 BN_free(q);
755 BN_free(g);
756 BN_free(pub_key);
757 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_BN_LIB);
758 goto err;
759 }
760 DSA_set0_pqg(dkey, p, q, g);
761 DSA_set0_key(dkey, pub_key, NULL);
762 if (!lend_tobn(p, btmp, dsa_plen)) {
763 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_CAPI_LIB);
764 goto err;
765 }
766 btmp += dsa_plen;
767 if (!lend_tobn(q, btmp, 20)) {
768 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_CAPI_LIB);
769 goto err;
770 }
771 btmp += 20;
772 if (!lend_tobn(g, btmp, dsa_plen)) {
773 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_CAPI_LIB);
774 goto err;
775 }
776 btmp += dsa_plen;
777 if (!lend_tobn(pub_key, btmp, dsa_plen)) {
778 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_CAPI_LIB);
779 goto err;
780 }
781 btmp += dsa_plen;
782
783 DSA_set_ex_data(dkey, dsa_capi_idx, key);
784
785 if ((ret = EVP_PKEY_new()) == NULL) {
786 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_EVP_LIB);
787 goto err;
788 }
789
790 EVP_PKEY_assign_DSA(ret, dkey);
791 dkey = NULL;
792 # endif
793 } else {
794 char algstr[10];
795 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
796 CAPIerr(CAPI_F_CAPI_GET_PKEY,
797 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
798 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
799 goto err;
800 }
801
802 err:
803 OPENSSL_free(pubkey);
804 if (!ret) {
805 RSA_free(rkey);
806 # ifndef OPENSSL_NO_DSA
807 DSA_free(dkey);
808 # endif
809 }
810
811 return ret;
812 }
813
814 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
815 UI_METHOD *ui_method, void *callback_data)
816 {
817 CAPI_CTX *ctx;
818 CAPI_KEY *key;
819 EVP_PKEY *ret;
820 ctx = ENGINE_get_ex_data(eng, capi_idx);
821
822 if (!ctx) {
823 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
824 return NULL;
825 }
826
827 key = capi_find_key(ctx, key_id);
828
829 if (!key)
830 return NULL;
831
832 ret = capi_get_pkey(eng, key);
833
834 if (!ret)
835 capi_free_key(key);
836 return ret;
837
838 }
839
840 /* CryptoAPI RSA operations */
841
842 int capi_rsa_priv_enc(int flen, const unsigned char *from,
843 unsigned char *to, RSA *rsa, int padding)
844 {
845 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
846 return -1;
847 }
848
849 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
850 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
851 {
852 ALG_ID alg;
853 HCRYPTHASH hash;
854 DWORD slen;
855 unsigned int i;
856 int ret = -1;
857 CAPI_KEY *capi_key;
858 CAPI_CTX *ctx;
859
860 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
861
862 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
863
864 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
865 if (!capi_key) {
866 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
867 return -1;
868 }
869 /* Convert the signature type to a CryptoAPI algorithm ID */
870 switch (dtype) {
871 case NID_sha256:
872 alg = CALG_SHA_256;
873 break;
874
875 case NID_sha384:
876 alg = CALG_SHA_384;
877 break;
878
879 case NID_sha512:
880 alg = CALG_SHA_512;
881 break;
882
883 case NID_sha1:
884 alg = CALG_SHA1;
885 break;
886
887 case NID_md5:
888 alg = CALG_MD5;
889 break;
890
891 case NID_md5_sha1:
892 alg = CALG_SSL3_SHAMD5;
893 break;
894 default:
895 {
896 char algstr[10];
897 BIO_snprintf(algstr, 10, "%x", dtype);
898 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
899 ERR_add_error_data(2, "NID=0x", algstr);
900 return -1;
901 }
902 }
903
904 /* Create the hash object */
905 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
906 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
907 capi_addlasterror();
908 return -1;
909 }
910 /* Set the hash value to the value passed */
911
912 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
913 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
914 capi_addlasterror();
915 goto err;
916 }
917
918 /* Finally sign it */
919 slen = RSA_size(rsa);
920 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
921 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
922 capi_addlasterror();
923 goto err;
924 } else {
925 ret = 1;
926 /* Inplace byte reversal of signature */
927 for (i = 0; i < slen / 2; i++) {
928 unsigned char c;
929 c = sigret[i];
930 sigret[i] = sigret[slen - i - 1];
931 sigret[slen - i - 1] = c;
932 }
933 *siglen = slen;
934 }
935
936 /* Now cleanup */
937
938 err:
939 CryptDestroyHash(hash);
940
941 return ret;
942 }
943
944 int capi_rsa_priv_dec(int flen, const unsigned char *from,
945 unsigned char *to, RSA *rsa, int padding)
946 {
947 int i;
948 unsigned char *tmpbuf;
949 CAPI_KEY *capi_key;
950 CAPI_CTX *ctx;
951 DWORD flags = 0;
952 DWORD dlen;
953
954 if (flen <= 0)
955 return flen;
956
957 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
958
959 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
960
961 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
962 if (!capi_key) {
963 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
964 return -1;
965 }
966
967 switch (padding) {
968 case RSA_PKCS1_PADDING:
969 /* Nothing to do */
970 break;
971 #ifdef CRYPT_DECRYPT_RSA_NO_PADDING_CHECK
972 case RSA_NO_PADDING:
973 flags = CRYPT_DECRYPT_RSA_NO_PADDING_CHECK;
974 break;
975 #endif
976 default:
977 {
978 char errstr[10];
979 BIO_snprintf(errstr, 10, "%d", padding);
980 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
981 ERR_add_error_data(2, "padding=", errstr);
982 return -1;
983 }
984 }
985
986 /* Create temp reverse order version of input */
987 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL)
988 return -1;
989 for (i = 0; i < flen; i++)
990 tmpbuf[flen - i - 1] = from[i];
991
992 /* Finally decrypt it */
993 dlen = flen;
994 if (!CryptDecrypt(capi_key->key, 0, TRUE, flags, tmpbuf, &dlen)) {
995 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
996 capi_addlasterror();
997 OPENSSL_cleanse(tmpbuf, dlen);
998 OPENSSL_free(tmpbuf);
999 return -1;
1000 } else {
1001 memcpy(to, tmpbuf, (flen = (int)dlen));
1002 }
1003 OPENSSL_cleanse(tmpbuf, flen);
1004 OPENSSL_free(tmpbuf);
1005
1006 return flen;
1007 }
1008
1009 static int capi_rsa_free(RSA *rsa)
1010 {
1011 CAPI_KEY *capi_key;
1012 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
1013 capi_free_key(capi_key);
1014 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
1015 return 1;
1016 }
1017
1018 # ifndef OPENSSL_NO_DSA
1019 /* CryptoAPI DSA operations */
1020
1021 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
1022 DSA *dsa)
1023 {
1024 HCRYPTHASH hash;
1025 DWORD slen;
1026 DSA_SIG *ret = NULL;
1027 CAPI_KEY *capi_key;
1028 CAPI_CTX *ctx;
1029 unsigned char csigbuf[40];
1030
1031 ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx);
1032
1033 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
1034
1035 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1036
1037 if (!capi_key) {
1038 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
1039 return NULL;
1040 }
1041
1042 if (dlen != 20) {
1043 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
1044 return NULL;
1045 }
1046
1047 /* Create the hash object */
1048 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
1049 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
1050 capi_addlasterror();
1051 return NULL;
1052 }
1053
1054 /* Set the hash value to the value passed */
1055 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
1056 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
1057 capi_addlasterror();
1058 goto err;
1059 }
1060
1061 /* Finally sign it */
1062 slen = sizeof(csigbuf);
1063 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1064 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1065 capi_addlasterror();
1066 goto err;
1067 } else {
1068 BIGNUM *r = BN_new(), *s = BN_new();
1069
1070 if (r == NULL || s == NULL
1071 || !lend_tobn(r, csigbuf, 20)
1072 || !lend_tobn(s, csigbuf + 20, 20)
1073 || (ret = DSA_SIG_new()) == NULL) {
1074 BN_free(r); /* BN_free checks for BIGNUM * being NULL */
1075 BN_free(s);
1076 goto err;
1077 }
1078 DSA_SIG_set0(ret, r, s);
1079 }
1080
1081 /* Now cleanup */
1082
1083 err:
1084 OPENSSL_cleanse(csigbuf, 40);
1085 CryptDestroyHash(hash);
1086 return ret;
1087 }
1088
1089 static int capi_dsa_free(DSA *dsa)
1090 {
1091 CAPI_KEY *capi_key;
1092 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1093 capi_free_key(capi_key);
1094 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1095 return 1;
1096 }
1097 # endif
1098
1099 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format,
1100 va_list argptr)
1101 {
1102 BIO *out;
1103
1104 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1105 return;
1106 out = BIO_new_file(ctx->debug_file, "a+");
1107 if (out == NULL) {
1108 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1109 return;
1110 }
1111 BIO_vprintf(out, format, argptr);
1112 BIO_free(out);
1113 }
1114
1115 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1116 {
1117 va_list args;
1118 va_start(args, format);
1119 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1120 va_end(args);
1121 }
1122
1123 static void capi_addlasterror(void)
1124 {
1125 capi_adderror(GetLastError());
1126 }
1127
1128 static void capi_adderror(DWORD err)
1129 {
1130 char errstr[10];
1131 BIO_snprintf(errstr, 10, "%lX", err);
1132 ERR_add_error_data(2, "Error code= 0x", errstr);
1133 }
1134
1135 static char *wide_to_asc(LPCWSTR wstr)
1136 {
1137 char *str;
1138 int len_0, sz;
1139 size_t len_1;
1140
1141 if (!wstr)
1142 return NULL;
1143
1144 len_1 = wcslen(wstr) + 1;
1145
1146 if (len_1 > INT_MAX) {
1147 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_FUNCTION_NOT_SUPPORTED);
1148 return NULL;
1149 }
1150
1151 len_0 = (int)len_1; /* WideCharToMultiByte expects int */
1152 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1153 if (!sz) {
1154 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1155 return NULL;
1156 }
1157 str = OPENSSL_malloc(sz);
1158 if (str == NULL)
1159 return NULL;
1160 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1161 OPENSSL_free(str);
1162 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1163 return NULL;
1164 }
1165 return str;
1166 }
1167
1168 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype,
1169 DWORD idx)
1170 {
1171 DWORD len, err;
1172 LPTSTR name;
1173 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1174 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1175 err = GetLastError();
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 name = OPENSSL_malloc(len);
1183 if (name == NULL)
1184 return 0;
1185 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1186 err = GetLastError();
1187 OPENSSL_free(name);
1188 if (err == ERROR_NO_MORE_ITEMS)
1189 return 2;
1190 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1191 capi_adderror(err);
1192 return 0;
1193 }
1194 if (sizeof(TCHAR) != sizeof(char)) {
1195 *pname = wide_to_asc((WCHAR *)name);
1196 OPENSSL_free(name);
1197 if (*pname == NULL)
1198 return 0;
1199 } else {
1200 *pname = (char *)name;
1201 }
1202 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1203 *ptype);
1204
1205 return 1;
1206 }
1207
1208 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1209 {
1210 DWORD idx, ptype;
1211 int ret;
1212 LPSTR provname = NULL;
1213 CAPI_trace(ctx, "capi_list_providers\n");
1214 BIO_printf(out, "Available CSPs:\n");
1215 for (idx = 0;; idx++) {
1216 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1217 if (ret == 2)
1218 break;
1219 if (ret == 0)
1220 break;
1221 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
1222 OPENSSL_free(provname);
1223 }
1224 return 1;
1225 }
1226
1227 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1228 {
1229 int ret = 1;
1230 HCRYPTPROV hprov;
1231 DWORD err, idx, flags, buflen = 0, clen;
1232 LPSTR cname;
1233 LPWSTR cspname = NULL;
1234
1235 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1236 ctx->csptype);
1237 if (ctx->cspname != NULL) {
1238 if ((clen = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1239 NULL, 0))) {
1240 cspname = alloca(clen * sizeof(WCHAR));
1241 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1242 clen);
1243 }
1244 if (cspname == NULL) {
1245 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1246 capi_addlasterror();
1247 return 0;
1248 }
1249 }
1250 if (!CryptAcquireContextW(&hprov, NULL, cspname, ctx->csptype,
1251 CRYPT_VERIFYCONTEXT)) {
1252 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1253 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1254 capi_addlasterror();
1255 return 0;
1256 }
1257 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen,
1258 CRYPT_FIRST)) {
1259 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1260 capi_addlasterror();
1261 CryptReleaseContext(hprov, 0);
1262 return 0;
1263 }
1264 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1265 if (buflen == 0)
1266 buflen = 1024;
1267 cname = OPENSSL_malloc(buflen);
1268 if (cname == NULL)
1269 goto err;
1270
1271 for (idx = 0;; idx++) {
1272 clen = buflen;
1273 cname[0] = 0;
1274
1275 if (idx == 0)
1276 flags = CRYPT_FIRST;
1277 else
1278 flags = 0;
1279 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, (BYTE *)cname,
1280 &clen, flags)) {
1281 err = GetLastError();
1282 if (err == ERROR_NO_MORE_ITEMS)
1283 goto done;
1284 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1285 capi_adderror(err);
1286 goto err;
1287 }
1288 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1289 cname, clen, idx, flags);
1290 if (!cname[0] && (clen == buflen)) {
1291 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1292 goto done;
1293 }
1294 BIO_printf(out, "%lu. %s\n", idx, cname);
1295 }
1296 err:
1297
1298 ret = 0;
1299
1300 done:
1301 OPENSSL_free(cname);
1302 CryptReleaseContext(hprov, 0);
1303
1304 return ret;
1305 }
1306
1307 static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx,
1308 PCCERT_CONTEXT cert)
1309 {
1310 DWORD len;
1311 CRYPT_KEY_PROV_INFO *pinfo;
1312
1313 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1314 NULL, &len))
1315 return NULL;
1316 pinfo = OPENSSL_malloc(len);
1317 if (pinfo == NULL)
1318 return NULL;
1319 if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID,
1320 pinfo, &len)) {
1321 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1322 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1323 capi_addlasterror();
1324 OPENSSL_free(pinfo);
1325 return NULL;
1326 }
1327 return pinfo;
1328 }
1329
1330 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out,
1331 CRYPT_KEY_PROV_INFO *pinfo)
1332 {
1333 char *provname = NULL, *contname = NULL;
1334
1335 if (pinfo == NULL) {
1336 BIO_printf(out, " No Private Key\n");
1337 return;
1338 }
1339 provname = wide_to_asc(pinfo->pwszProvName);
1340 contname = wide_to_asc(pinfo->pwszContainerName);
1341 if (provname == NULL || contname == NULL)
1342 goto err;
1343
1344 BIO_printf(out, " Private Key Info:\n");
1345 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
1346 pinfo->dwProvType);
1347 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
1348 pinfo->dwKeySpec);
1349 err:
1350 OPENSSL_free(provname);
1351 OPENSSL_free(contname);
1352 }
1353
1354 static char *capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1355 {
1356 LPWSTR wfname;
1357 DWORD dlen;
1358
1359 CAPI_trace(ctx, "capi_cert_get_fname\n");
1360 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1361 NULL, &dlen))
1362 return NULL;
1363 wfname = OPENSSL_malloc(dlen);
1364 if (wfname == NULL)
1365 return NULL;
1366 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID,
1367 wfname, &dlen)) {
1368 char *fname = wide_to_asc(wfname);
1369 OPENSSL_free(wfname);
1370 return fname;
1371 }
1372 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1373 capi_addlasterror();
1374
1375 OPENSSL_free(wfname);
1376 return NULL;
1377 }
1378
1379 static void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1380 {
1381 X509 *x;
1382 const unsigned char *p;
1383 unsigned long flags = ctx->dump_flags;
1384 if (flags & CAPI_DMP_FNAME) {
1385 char *fname;
1386 fname = capi_cert_get_fname(ctx, cert);
1387 if (fname) {
1388 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1389 OPENSSL_free(fname);
1390 } else {
1391 BIO_printf(out, " <No Friendly Name>\n");
1392 }
1393 }
1394
1395 p = cert->pbCertEncoded;
1396 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1397 if (!x)
1398 BIO_printf(out, " <Can't parse certificate>\n");
1399 if (flags & CAPI_DMP_SUMMARY) {
1400 BIO_printf(out, " Subject: ");
1401 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1402 BIO_printf(out, "\n Issuer: ");
1403 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1404 BIO_printf(out, "\n");
1405 }
1406 if (flags & CAPI_DMP_FULL)
1407 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1408
1409 if (flags & CAPI_DMP_PKEYINFO) {
1410 CRYPT_KEY_PROV_INFO *pinfo;
1411 pinfo = capi_get_prov_info(ctx, cert);
1412 capi_dump_prov_info(ctx, out, pinfo);
1413 OPENSSL_free(pinfo);
1414 }
1415
1416 if (flags & CAPI_DMP_PEM)
1417 PEM_write_bio_X509(out, x);
1418 X509_free(x);
1419 }
1420
1421 static HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1422 {
1423 HCERTSTORE hstore;
1424
1425 if (!storename)
1426 storename = ctx->storename;
1427 if (!storename)
1428 storename = "MY";
1429 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1430
1431 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1432 ctx->store_flags, storename);
1433 if (!hstore) {
1434 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1435 capi_addlasterror();
1436 }
1437 return hstore;
1438 }
1439
1440 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1441 {
1442 char *storename;
1443 int idx;
1444 int ret = 1;
1445 HCERTSTORE hstore;
1446 PCCERT_CONTEXT cert = NULL;
1447
1448 storename = ctx->storename;
1449 if (!storename)
1450 storename = "MY";
1451 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1452
1453 hstore = capi_open_store(ctx, storename);
1454 if (!hstore)
1455 return 0;
1456 if (id) {
1457 cert = capi_find_cert(ctx, id, hstore);
1458 if (!cert) {
1459 ret = 0;
1460 goto err;
1461 }
1462 capi_dump_cert(ctx, out, cert);
1463 CertFreeCertificateContext(cert);
1464 } else {
1465 for (idx = 0;; idx++) {
1466 cert = CertEnumCertificatesInStore(hstore, cert);
1467 if (!cert)
1468 break;
1469 BIO_printf(out, "Certificate %d\n", idx);
1470 capi_dump_cert(ctx, out, cert);
1471 }
1472 }
1473 err:
1474 CertCloseStore(hstore, 0);
1475 return ret;
1476 }
1477
1478 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id,
1479 HCERTSTORE hstore)
1480 {
1481 PCCERT_CONTEXT cert = NULL;
1482 char *fname = NULL;
1483 int match;
1484 switch (ctx->lookup_method) {
1485 case CAPI_LU_SUBSTR:
1486 return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0,
1487 CERT_FIND_SUBJECT_STR_A, id, NULL);
1488 case CAPI_LU_FNAME:
1489 for (;;) {
1490 cert = CertEnumCertificatesInStore(hstore, cert);
1491 if (!cert)
1492 return NULL;
1493 fname = capi_cert_get_fname(ctx, cert);
1494 if (fname) {
1495 if (strcmp(fname, id))
1496 match = 0;
1497 else
1498 match = 1;
1499 OPENSSL_free(fname);
1500 if (match)
1501 return cert;
1502 }
1503 }
1504 default:
1505 return NULL;
1506 }
1507 }
1508
1509 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const WCHAR *contname,
1510 const WCHAR *provname, DWORD ptype,
1511 DWORD keyspec)
1512 {
1513 DWORD dwFlags = 0;
1514 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1515
1516 if (key == NULL)
1517 return NULL;
1518 /* If PROV_RSA_AES supported use it instead */
1519 if (ptype == PROV_RSA_FULL && use_aes_csp &&
1520 wcscmp(provname, rsa_enh_cspname) == 0) {
1521 provname = rsa_aes_cspname;
1522 ptype = PROV_RSA_AES;
1523 }
1524 if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1525 /*
1526 * above 'if' is [complementary] copy from CAPI_trace and serves
1527 * as optimization to minimize [below] malloc-ations
1528 */
1529 char *_contname = wide_to_asc(contname);
1530 char *_provname = wide_to_asc(provname);
1531
1532 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1533 _contname, _provname, ptype);
1534 OPENSSL_free(_provname);
1535 OPENSSL_free(_contname);
1536 }
1537 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1538 dwFlags = CRYPT_MACHINE_KEYSET;
1539 if (!CryptAcquireContextW(&key->hprov, contname, provname, ptype,
1540 dwFlags)) {
1541 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1542 capi_addlasterror();
1543 goto err;
1544 }
1545 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1546 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1547 capi_addlasterror();
1548 CryptReleaseContext(key->hprov, 0);
1549 goto err;
1550 }
1551 key->keyspec = keyspec;
1552 key->pcert = NULL;
1553 return key;
1554
1555 err:
1556 OPENSSL_free(key);
1557 return NULL;
1558 }
1559
1560 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1561 {
1562 CAPI_KEY *key = NULL;
1563 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1564
1565 pinfo = capi_get_prov_info(ctx, cert);
1566
1567 if (pinfo != NULL)
1568 key = capi_get_key(ctx, pinfo->pwszContainerName, pinfo->pwszProvName,
1569 pinfo->dwProvType, pinfo->dwKeySpec);
1570
1571 OPENSSL_free(pinfo);
1572 return key;
1573 }
1574
1575 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1576 {
1577 PCCERT_CONTEXT cert;
1578 HCERTSTORE hstore;
1579 CAPI_KEY *key = NULL;
1580
1581 switch (ctx->lookup_method) {
1582 case CAPI_LU_SUBSTR:
1583 case CAPI_LU_FNAME:
1584 hstore = capi_open_store(ctx, NULL);
1585 if (!hstore)
1586 return NULL;
1587 cert = capi_find_cert(ctx, id, hstore);
1588 if (cert) {
1589 key = capi_get_cert_key(ctx, cert);
1590 CertFreeCertificateContext(cert);
1591 }
1592 CertCloseStore(hstore, 0);
1593 break;
1594
1595 case CAPI_LU_CONTNAME:
1596 {
1597 WCHAR *contname, *provname;
1598 DWORD len;
1599
1600 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1601 (contname = alloca(len * sizeof(WCHAR)),
1602 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1603 (len = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1604 NULL, 0)) &&
1605 (provname = alloca(len * sizeof(WCHAR)),
1606 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1,
1607 provname, len)))
1608 key = capi_get_key(ctx, contname, provname,
1609 ctx->csptype, ctx->keytype);
1610 }
1611 break;
1612 }
1613
1614 return key;
1615 }
1616
1617 void capi_free_key(CAPI_KEY *key)
1618 {
1619 if (!key)
1620 return;
1621 CryptDestroyKey(key->key);
1622 CryptReleaseContext(key->hprov, 0);
1623 if (key->pcert)
1624 CertFreeCertificateContext(key->pcert);
1625 OPENSSL_free(key);
1626 }
1627
1628 /* Initialize a CAPI_CTX structure */
1629
1630 static CAPI_CTX *capi_ctx_new(void)
1631 {
1632 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
1633
1634 if (ctx == NULL)
1635 return NULL;
1636 ctx->csptype = PROV_RSA_FULL;
1637 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1638 ctx->keytype = AT_KEYEXCHANGE;
1639 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1640 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1641 ctx->lookup_method = CAPI_LU_SUBSTR;
1642 ctx->client_cert_select = cert_select_simple;
1643 return ctx;
1644 }
1645
1646 static void capi_ctx_free(CAPI_CTX *ctx)
1647 {
1648 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1649 if (!ctx)
1650 return;
1651 OPENSSL_free(ctx->cspname);
1652 OPENSSL_free(ctx->debug_file);
1653 OPENSSL_free(ctx->storename);
1654 OPENSSL_free(ctx->ssl_client_store);
1655 OPENSSL_free(ctx);
1656 }
1657
1658 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type,
1659 int check)
1660 {
1661 LPSTR tmpcspname;
1662
1663 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1664 if (check) {
1665 HCRYPTPROV hprov;
1666 LPWSTR name = NULL;
1667 DWORD len;
1668
1669 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1670 name = alloca(len * sizeof(WCHAR));
1671 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1672 }
1673 if (name == NULL || !CryptAcquireContextW(&hprov, NULL, name, type,
1674 CRYPT_VERIFYCONTEXT)) {
1675 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1676 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1677 capi_addlasterror();
1678 return 0;
1679 }
1680 CryptReleaseContext(hprov, 0);
1681 }
1682 tmpcspname = OPENSSL_strdup(pname);
1683 if (tmpcspname == NULL)
1684 return 0;
1685 OPENSSL_free(ctx->cspname);
1686 ctx->cspname = tmpcspname;
1687 ctx->csptype = type;
1688 return 1;
1689 }
1690
1691 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1692 {
1693 LPSTR pname;
1694 DWORD type;
1695 int res;
1696 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1697 return 0;
1698 res = capi_ctx_set_provname(ctx, pname, type, 0);
1699 OPENSSL_free(pname);
1700 return res;
1701 }
1702
1703 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1704 {
1705 int i;
1706 X509_NAME *nm;
1707 /* Special case: empty list: match anything */
1708 if (sk_X509_NAME_num(ca_dn) <= 0)
1709 return 1;
1710 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1711 nm = sk_X509_NAME_value(ca_dn, i);
1712 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1713 return 1;
1714 }
1715 return 0;
1716 }
1717
1718 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1719 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1720 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1721 UI_METHOD *ui_method,
1722 void *callback_data)
1723 {
1724 STACK_OF(X509) *certs = NULL;
1725 X509 *x;
1726 char *storename;
1727 const unsigned char *p;
1728 int i, client_cert_idx;
1729 HCERTSTORE hstore;
1730 PCCERT_CONTEXT cert = NULL, excert = NULL;
1731 CAPI_CTX *ctx;
1732 CAPI_KEY *key;
1733 ctx = ENGINE_get_ex_data(e, capi_idx);
1734
1735 *pcert = NULL;
1736 *pkey = NULL;
1737
1738 storename = ctx->ssl_client_store;
1739 if (!storename)
1740 storename = "MY";
1741
1742 hstore = capi_open_store(ctx, storename);
1743 if (!hstore)
1744 return 0;
1745 /* Enumerate all certificates collect any matches */
1746 for (i = 0;; i++) {
1747 cert = CertEnumCertificatesInStore(hstore, cert);
1748 if (!cert)
1749 break;
1750 p = cert->pbCertEncoded;
1751 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1752 if (!x) {
1753 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1754 continue;
1755 }
1756 if (cert_issuer_match(ca_dn, x)
1757 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1758 key = capi_get_cert_key(ctx, cert);
1759 if (!key) {
1760 X509_free(x);
1761 continue;
1762 }
1763 /*
1764 * Match found: attach extra data to it so we can retrieve the
1765 * key later.
1766 */
1767 excert = CertDuplicateCertificateContext(cert);
1768 key->pcert = excert;
1769 X509_set_ex_data(x, cert_capi_idx, key);
1770
1771 if (!certs)
1772 certs = sk_X509_new_null();
1773
1774 sk_X509_push(certs, x);
1775 } else {
1776 X509_free(x);
1777 }
1778 }
1779
1780 if (cert)
1781 CertFreeCertificateContext(cert);
1782 if (hstore)
1783 CertCloseStore(hstore, 0);
1784
1785 if (!certs)
1786 return 0;
1787
1788 /* Select the appropriate certificate */
1789
1790 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1791
1792 /* Set the selected certificate and free the rest */
1793
1794 for (i = 0; i < sk_X509_num(certs); i++) {
1795 x = sk_X509_value(certs, i);
1796 if (i == client_cert_idx)
1797 *pcert = x;
1798 else {
1799 key = X509_get_ex_data(x, cert_capi_idx);
1800 capi_free_key(key);
1801 X509_free(x);
1802 }
1803 }
1804
1805 sk_X509_free(certs);
1806
1807 if (*pcert == NULL)
1808 return 0;
1809
1810 /* Setup key for selected certificate */
1811
1812 key = X509_get_ex_data(*pcert, cert_capi_idx);
1813 *pkey = capi_get_pkey(e, key);
1814 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1815
1816 return 1;
1817
1818 }
1819
1820 /* Simple client cert selection function: always select first */
1821
1822 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1823 {
1824 return 0;
1825 }
1826
1827 # ifdef OPENSSL_CAPIENG_DIALOG
1828
1829 /*
1830 * More complex cert selection function, using standard function
1831 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1832 */
1833
1834 /*
1835 * Definitions which are in cryptuiapi.h but this is not present in older
1836 * versions of headers.
1837 */
1838
1839 # ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1840 # define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1841 # define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1842 # endif
1843
1844 # define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1845 # define dlg_prompt L"Select a certificate to use for authentication"
1846 # define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1847 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1848
1849 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1850 {
1851 X509 *x;
1852 HCERTSTORE dstore;
1853 PCCERT_CONTEXT cert;
1854 CAPI_CTX *ctx;
1855 CAPI_KEY *key;
1856 HWND hwnd;
1857 int i, idx = -1;
1858 if (sk_X509_num(certs) == 1)
1859 return 0;
1860 ctx = ENGINE_get_ex_data(e, capi_idx);
1861 /* Create an in memory store of certificates */
1862 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1863 CERT_STORE_CREATE_NEW_FLAG, NULL);
1864 if (!dstore) {
1865 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1866 capi_addlasterror();
1867 goto err;
1868 }
1869 /* Add all certificates to store */
1870 for (i = 0; i < sk_X509_num(certs); i++) {
1871 x = sk_X509_value(certs, i);
1872 key = X509_get_ex_data(x, cert_capi_idx);
1873
1874 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1875 CERT_STORE_ADD_NEW, NULL)) {
1876 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1877 capi_addlasterror();
1878 goto err;
1879 }
1880
1881 }
1882 hwnd = GetForegroundWindow();
1883 if (!hwnd)
1884 hwnd = GetActiveWindow();
1885 if (!hwnd && ctx->getconswindow)
1886 hwnd = ctx->getconswindow();
1887 /* Call dialog to select one */
1888 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1889 dlg_columns, 0, NULL);
1890
1891 /* Find matching cert from list */
1892 if (cert) {
1893 for (i = 0; i < sk_X509_num(certs); i++) {
1894 x = sk_X509_value(certs, i);
1895 key = X509_get_ex_data(x, cert_capi_idx);
1896 if (CertCompareCertificate
1897 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1898 key->pcert->pCertInfo)) {
1899 idx = i;
1900 break;
1901 }
1902 }
1903 }
1904
1905 err:
1906 if (dstore)
1907 CertCloseStore(dstore, 0);
1908 return idx;
1909
1910 }
1911 # endif
1912
1913 #else /* !__COMPILE_CAPIENG */
1914 # include <openssl/engine.h>
1915 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
1916 OPENSSL_EXPORT
1917 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1918 OPENSSL_EXPORT
1919 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1920 {
1921 return 0;
1922 }
1923
1924 IMPLEMENT_DYNAMIC_CHECK_FN()
1925 # else
1926 void engine_load_capi_int(void);
1927 void engine_load_capi_int(void)
1928 {
1929 }
1930 # endif
1931 #endif
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