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[thirdparty/openssl.git] / engines / e_capi.c
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7a18ecb2 1/* engines/e_capi.c */
0f113f3e
MC		 2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
7a18ecb2
DSH		 4 * project.
5 */
6/* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
0f113f3e 14 * notice, this list of conditions and the following disclaimer.
7a18ecb2
DSH		 15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 */
54
7a18ecb2
DSH		 55#include <stdio.h>
56#include <string.h>
cc4c2306 57#include <stdlib.h>
cc4c2306 58
7a18ecb2 59#include <openssl/crypto.h>
7a18ecb2
DSH		 60
61#ifdef OPENSSL_SYS_WIN32
0f113f3e 62# ifndef OPENSSL_NO_CAPIENG
7a18ecb2 63
0f113f3e
MC		 64# include <openssl/buffer.h>
65# include <openssl/bn.h>
66# include <openssl/rsa.h>
67# include <openssl/dsa.h>
a0f3679b 68
0f113f3e
MC		 69# ifndef _WIN32_WINNT
70# define _WIN32_WINNT 0x0400
71# endif
a0f3679b 72
0f113f3e
MC		 73# include <windows.h>
74# include <wincrypt.h>
75# include <malloc.h>
76# ifndef alloca
77# define alloca _alloca
78# endif
7a18ecb2 79
f87e3078
AP		 80/*
81 * This module uses several "new" interfaces, among which is
82 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
83 * one of possible values you can pass to function in question. By
84 * checking if it's defined we can see if wincrypt.h and accompanying
6b02f9fa
DSH		 85 * crypt32.lib are in shape. The native MingW32 headers up to and
86 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
87 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
88 * so we check for these too and avoid compiling.
89 * Yes, it's rather "weak" test and if compilation fails,
90 * then re-configure with -DOPENSSL_NO_CAPIENG.
f87e3078 91 */
0f113f3e 92# if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
6b02f9fa
DSH		 93 defined(CERT_STORE_PROV_SYSTEM_A) && \
94 defined(CERT_STORE_READONLY_FLAG)
0f113f3e
MC		 95# define __COMPILE_CAPIENG
96# endif /* CERT_KEY_PROV_INFO_PROP_ID */
97# endif /* OPENSSL_NO_CAPIENG */
98#endif /* OPENSSL_SYS_WIN32 */
f87e3078
AP		 99
100#ifdef __COMPILE_CAPIENG
101
0f113f3e
MC		 102# undef X509_EXTENSIONS
103# undef X509_CERT_PAIR
11f3cee9 104
a0f3679b 105/* Definitions which may be missing from earlier version of headers */
0f113f3e
MC		 106# ifndef CERT_STORE_OPEN_EXISTING_FLAG
107# define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
108# endif
109
110# ifndef CERT_STORE_CREATE_NEW_FLAG
111# define CERT_STORE_CREATE_NEW_FLAG 0x00002000
112# endif
113
114# ifndef CERT_SYSTEM_STORE_CURRENT_USER
115# define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
116# endif
117
118# ifndef ALG_SID_SHA_256
119# define ALG_SID_SHA_256 12
120# endif
121# ifndef ALG_SID_SHA_384
122# define ALG_SID_SHA_384 13
123# endif
124# ifndef ALG_SID_SHA_512
125# define ALG_SID_SHA_512 14
126# endif
127
128# ifndef CALG_SHA_256
129# define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
130# endif
131# ifndef CALG_SHA_384
132# define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
133# endif
134# ifndef CALG_SHA_512
135# define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
136# endif
137
138# include <openssl/engine.h>
139# include <openssl/pem.h>
140# include <openssl/x509v3.h>
141
142# include "e_capi_err.h"
143# include "e_capi_err.c"
7a18ecb2
DSH		 144
145static const char *engine_capi_id = "capi";
146static const char *engine_capi_name = "CryptoAPI ENGINE";
147
148typedef struct CAPI_CTX_st CAPI_CTX;
149typedef struct CAPI_KEY_st CAPI_KEY;
150
151static void capi_addlasterror(void);
152static void capi_adderror(DWORD err);
153
0f113f3e 154static void CAPI_trace(CAPI_CTX * ctx, char *format, ...);
7a18ecb2 155
0f113f3e
MC		 156static int capi_list_providers(CAPI_CTX * ctx, BIO *out);
157static int capi_list_containers(CAPI_CTX * ctx, BIO *out);
158int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *storename);
159void capi_free_key(CAPI_KEY * key);
7a18ecb2 160
0f113f3e
MC		 161static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
162 HCERTSTORE hstore);
7a18ecb2 163
0f113f3e 164CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id);
7a18ecb2
DSH		 165
166static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
0f113f3e
MC		 167 UI_METHOD *ui_method, void *callback_data);
168static int capi_rsa_sign(int dtype, const unsigned char *m,
169 unsigned int m_len, unsigned char *sigret,
170 unsigned int *siglen, const RSA *rsa);
7a18ecb2 171static int capi_rsa_priv_enc(int flen, const unsigned char *from,
0f113f3e 172 unsigned char *to, RSA *rsa, int padding);
7a18ecb2 173static int capi_rsa_priv_dec(int flen, const unsigned char *from,
0f113f3e 174 unsigned char *to, RSA *rsa, int padding);
7a18ecb2
DSH		 175static int capi_rsa_free(RSA *rsa);
176
177static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
0f113f3e 178 DSA *dsa);
7a18ecb2 179static int capi_dsa_free(DSA *dsa);
b3c8dd4e
DSH		 180
181static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
0f113f3e
MC		 182 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
183 EVP_PKEY **pkey, STACK_OF(X509) **pother,
184 UI_METHOD *ui_method,
185 void *callback_data);
1cd504e7
DSH		 186
187static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
0f113f3e 188# ifdef OPENSSL_CAPIENG_DIALOG
1cd504e7 189static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
0f113f3e 190# endif
1cd504e7 191
0f113f3e
MC		 192typedef PCCERT_CONTEXT(WINAPI *CERTDLG) (HCERTSTORE, HWND, LPCWSTR,
193 LPCWSTR, DWORD, DWORD, void *);
194typedef HWND(WINAPI *GETCONSWIN) (void);
1cd504e7 195
0f113f3e
MC		 196/*
197 * This structure contains CAPI ENGINE specific data: it contains various
198 * global options and affects how other functions behave.
7a18ecb2
DSH		 199 */
200
0f113f3e
MC		 201# define CAPI_DBG_TRACE 2
202# define CAPI_DBG_ERROR 1
7a18ecb2
DSH		 203
204struct CAPI_CTX_st {
0f113f3e
MC		 205 int debug_level;
206 char *debug_file;
207 /* Parameters to use for container lookup */
208 DWORD keytype;
209 LPSTR cspname;
210 DWORD csptype;
211 /* Certificate store name to use */
212 LPSTR storename;
213 LPSTR ssl_client_store;
214 /* System store flags */
215 DWORD store_flags;
7a18ecb2
DSH		 216/* Lookup string meanings in load_private_key */
217/* Substring of subject: uses "storename" */
0f113f3e 218# define CAPI_LU_SUBSTR 1
7a18ecb2 219/* Friendly name: uses storename */
0f113f3e 220# define CAPI_LU_FNAME 2
7a18ecb2 221/* Container name: uses cspname, keytype */
0f113f3e
MC		 222# define CAPI_LU_CONTNAME 3
223 int lookup_method;
7a18ecb2
DSH		 224/* Info to dump with dumpcerts option */
225/* Issuer and serial name strings */
0f113f3e 226# define CAPI_DMP_SUMMARY 0x1
7a18ecb2 227/* Friendly name */
0f113f3e 228# define CAPI_DMP_FNAME 0x2
7a18ecb2 229/* Full X509_print dump */
0f113f3e 230# define CAPI_DMP_FULL 0x4
7a18ecb2 231/* Dump PEM format certificate */
0f113f3e 232# define CAPI_DMP_PEM 0x8
7a18ecb2 233/* Dump pseudo key (if possible) */
0f113f3e 234# define CAPI_DMP_PSKEY 0x10
7a18ecb2 235/* Dump key info (if possible) */
0f113f3e
MC		 236# define CAPI_DMP_PKEYINFO 0x20
237 DWORD dump_flags;
238 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
239 CERTDLG certselectdlg;
240 GETCONSWIN getconswindow;
7a18ecb2
DSH		 241};
242
7a18ecb2 243static CAPI_CTX *capi_ctx_new();
0f113f3e
MC		 244static void capi_ctx_free(CAPI_CTX * ctx);
245static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
246 int check);
247static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx);
248
249# define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
250# define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
251# define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
252# define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
253# define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
254# define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
255# define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
256# define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
257# define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
258# define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
259# define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
260# define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
261# define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
262# define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
7a18ecb2
DSH		 263
264static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
0f113f3e
MC		 265 {CAPI_CMD_LIST_CERTS,
266 "list_certs",
267 "List all certificates in store",
268 ENGINE_CMD_FLAG_NO_INPUT},
269 {CAPI_CMD_LOOKUP_CERT,
270 "lookup_cert",
271 "Lookup and output certificates",
272 ENGINE_CMD_FLAG_STRING},
273 {CAPI_CMD_DEBUG_LEVEL,
274 "debug_level",
275 "debug level (1=errors, 2=trace)",
276 ENGINE_CMD_FLAG_NUMERIC},
277 {CAPI_CMD_DEBUG_FILE,
278 "debug_file",
279 "debugging filename)",
280 ENGINE_CMD_FLAG_STRING},
281 {CAPI_CMD_KEYTYPE,
282 "key_type",
283 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
284 ENGINE_CMD_FLAG_NUMERIC},
285 {CAPI_CMD_LIST_CSPS,
286 "list_csps",
287 "List all CSPs",
288 ENGINE_CMD_FLAG_NO_INPUT},
289 {CAPI_CMD_SET_CSP_IDX,
290 "csp_idx",
291 "Set CSP by index",
292 ENGINE_CMD_FLAG_NUMERIC},
293 {CAPI_CMD_SET_CSP_NAME,
294 "csp_name",
295 "Set CSP name, (default CSP used if not specified)",
296 ENGINE_CMD_FLAG_STRING},
297 {CAPI_CMD_SET_CSP_TYPE,
298 "csp_type",
299 "Set CSP type, (default RSA_PROV_FULL)",
300 ENGINE_CMD_FLAG_NUMERIC},
301 {CAPI_CMD_LIST_CONTAINERS,
302 "list_containers",
303 "list container names",
304 ENGINE_CMD_FLAG_NO_INPUT},
305 {CAPI_CMD_LIST_OPTIONS,
306 "list_options",
307 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
308 "32=private key info)",
309 ENGINE_CMD_FLAG_NUMERIC},
310 {CAPI_CMD_LOOKUP_METHOD,
311 "lookup_method",
312 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
313 ENGINE_CMD_FLAG_NUMERIC},
314 {CAPI_CMD_STORE_NAME,
315 "store_name",
316 "certificate store name, default \"MY\"",
317 ENGINE_CMD_FLAG_STRING},
318 {CAPI_CMD_STORE_FLAGS,
319 "store_flags",
320 "Certificate store flags: 1 = system store",
321 ENGINE_CMD_FLAG_NUMERIC},
322
323 {0, NULL, NULL, 0}
324};
7a18ecb2
DSH		 325
326static int capi_idx = -1;
327static int rsa_capi_idx = -1;
328static int dsa_capi_idx = -1;
7d537d4f 329static int cert_capi_idx = -1;
7a18ecb2 330
0f113f3e
MC		 331static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
332{
333 int ret = 1;
334 CAPI_CTX *ctx;
335 BIO *out;
336 if (capi_idx == -1) {
337 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
338 return 0;
339 }
340 ctx = ENGINE_get_ex_data(e, capi_idx);
341 out = BIO_new_fp(stdout, BIO_NOCLOSE);
342 if (out == NULL) {
343 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
344 return 0;
345 }
346 switch (cmd) {
347 case CAPI_CMD_LIST_CSPS:
348 ret = capi_list_providers(ctx, out);
349 break;
350
351 case CAPI_CMD_LIST_CERTS:
352 ret = capi_list_certs(ctx, out, NULL);
353 break;
354
355 case CAPI_CMD_LOOKUP_CERT:
356 ret = capi_list_certs(ctx, out, p);
357 break;
358
359 case CAPI_CMD_LIST_CONTAINERS:
360 ret = capi_list_containers(ctx, out);
361 break;
362
363 case CAPI_CMD_STORE_NAME:
364 if (ctx->storename)
365 OPENSSL_free(ctx->storename);
366 ctx->storename = BUF_strdup(p);
367 CAPI_trace(ctx, "Setting store name to %s\n", p);
368 break;
369
370 case CAPI_CMD_STORE_FLAGS:
371 if (i & 1) {
372 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
373 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
374 } else {
375 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
376 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
377 }
378 CAPI_trace(ctx, "Setting flags to %d\n", i);
379 break;
380
381 case CAPI_CMD_DEBUG_LEVEL:
382 ctx->debug_level = (int)i;
383 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
384 break;
385
386 case CAPI_CMD_DEBUG_FILE:
387 ctx->debug_file = BUF_strdup(p);
388 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
389 break;
390
391 case CAPI_CMD_KEYTYPE:
392 ctx->keytype = i;
393 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
394 break;
395
396 case CAPI_CMD_SET_CSP_IDX:
397 ret = capi_ctx_set_provname_idx(ctx, i);
398 break;
399
400 case CAPI_CMD_LIST_OPTIONS:
401 ctx->dump_flags = i;
402 break;
403
404 case CAPI_CMD_LOOKUP_METHOD:
405 if (i < 1 || i > 3) {
406 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
407 BIO_free(out);
408 return 0;
409 }
410 ctx->lookup_method = i;
411 break;
412
413 case CAPI_CMD_SET_CSP_NAME:
414 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
415 break;
416
417 case CAPI_CMD_SET_CSP_TYPE:
418 ctx->csptype = i;
419 break;
420
421 default:
422 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
423 ret = 0;
424 }
425
426 BIO_free(out);
427 return ret;
428
429}
430
431static RSA_METHOD capi_rsa_method = {
432 "CryptoAPI RSA method",
433 0, /* pub_enc */
434 0, /* pub_dec */
435 capi_rsa_priv_enc, /* priv_enc */
436 capi_rsa_priv_dec, /* priv_dec */
437 0, /* rsa_mod_exp */
438 0, /* bn_mod_exp */
439 0, /* init */
440 capi_rsa_free, /* finish */
441 RSA_FLAG_SIGN_VER, /* flags */
442 NULL, /* app_data */
443 capi_rsa_sign, /* rsa_sign */
444 0 /* rsa_verify */
445};
7a18ecb2 446
0f113f3e
MC		 447static DSA_METHOD capi_dsa_method = {
448 "CryptoAPI DSA method",
449 capi_dsa_do_sign, /* dsa_do_sign */
450 0, /* dsa_sign_setup */
451 0, /* dsa_do_verify */
452 0, /* dsa_mod_exp */
453 0, /* bn_mod_exp */
454 0, /* init */
455 capi_dsa_free, /* finish */
456 0, /* flags */
457 NULL, /* app_data */
458 0, /* dsa_paramgen */
459 0 /* dsa_keygen */
460};
7a18ecb2 461
0f113f3e
MC		 462static int capi_init(ENGINE *e)
463{
464 CAPI_CTX *ctx;
465 const RSA_METHOD *ossl_rsa_meth;
466 const DSA_METHOD *ossl_dsa_meth;
467
468 if (capi_idx < 0) {
469 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
470 if (capi_idx < 0)
471 goto memerr;
472
473 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
474
475 /* Setup RSA_METHOD */
476 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
477 ossl_rsa_meth = RSA_PKCS1_SSLeay();
478 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
479 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
480 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
481 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
482
483 /* Setup DSA Method */
484 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
485 ossl_dsa_meth = DSA_OpenSSL();
486 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
487 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
488 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
489 }
490
491 ctx = capi_ctx_new();
492 if (!ctx)
493 goto memerr;
494
495 ENGINE_set_ex_data(e, capi_idx, ctx);
496
497# ifdef OPENSSL_CAPIENG_DIALOG
498 {
499 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
500 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
501 if (cryptui)
502 ctx->certselectdlg =
503 (CERTDLG) GetProcAddress(cryptui,
504 "CryptUIDlgSelectCertificateFromStore");
505 if (kernel)
506 ctx->getconswindow =
507 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
508 if (cryptui && !OPENSSL_isservice())
509 ctx->client_cert_select = cert_select_dialog;
510 }
511# endif
512
513 return 1;
514
515 memerr:
516 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
517 return 0;
518
519 return 1;
520}
7a18ecb2
DSH		 521
522static int capi_destroy(ENGINE *e)
0f113f3e
MC		 523{
524 ERR_unload_CAPI_strings();
525 return 1;
526}
7a18ecb2
DSH		 527
528static int capi_finish(ENGINE *e)
0f113f3e
MC		 529{
530 CAPI_CTX *ctx;
531 ctx = ENGINE_get_ex_data(e, capi_idx);
532 capi_ctx_free(ctx);
533 ENGINE_set_ex_data(e, capi_idx, NULL);
534 return 1;
535}
536
537/*
538 * CryptoAPI key application data. This contains a handle to the private key
539 * container (for sign operations) and a handle to the key (for decrypt
540 * operations).
7a18ecb2
DSH		 541 */
542
0f113f3e
MC		 543struct CAPI_KEY_st {
544 /* Associated certificate context (if any) */
545 PCCERT_CONTEXT pcert;
546 HCRYPTPROV hprov;
547 HCRYPTKEY key;
548 DWORD keyspec;
549};
7a18ecb2
DSH		 550
551static int bind_capi(ENGINE *e)
0f113f3e
MC		 552{
553 if (!ENGINE_set_id(e, engine_capi_id)
554 || !ENGINE_set_name(e, engine_capi_name)
555 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
556 || !ENGINE_set_init_function(e, capi_init)
557 || !ENGINE_set_finish_function(e, capi_finish)
558 || !ENGINE_set_destroy_function(e, capi_destroy)
559 || !ENGINE_set_RSA(e, &capi_rsa_method)
560 || !ENGINE_set_DSA(e, &capi_dsa_method)
561 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
562 || !ENGINE_set_load_ssl_client_cert_function(e,
563 capi_load_ssl_client_cert)
564 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
565 || !ENGINE_set_ctrl_function(e, capi_ctrl))
566 return 0;
567 ERR_load_CAPI_strings();
568
569 return 1;
570
571}
572
573# ifndef OPENSSL_NO_DYNAMIC_ENGINE
7a18ecb2 574static int bind_helper(ENGINE *e, const char *id)
0f113f3e
MC		 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
7a18ecb2 583IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e
MC		 584 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
585# else
7a18ecb2 586static ENGINE *engine_capi(void)
0f113f3e
MC		 587{
588 ENGINE *ret = ENGINE_new();
589 if (!ret)
590 return NULL;
591 if (!bind_capi(ret)) {
592 ENGINE_free(ret);
593 return NULL;
594 }
595 return ret;
596}
7a18ecb2
DSH		 597
598void ENGINE_load_capi(void)
0f113f3e
MC		 599{
600 /* Copied from eng_[openssl|dyn].c */
601 ENGINE *toadd = engine_capi();
602 if (!toadd)
603 return;
604 ENGINE_add(toadd);
605 ENGINE_free(toadd);
606 ERR_clear_error();
607}
608# endif
7a18ecb2
DSH		 609
610static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
0f113f3e
MC		 611{
612 int i;
613 /*
614 * Reverse buffer in place: since this is a keyblob structure that will
615 * be freed up after conversion anyway it doesn't matter if we change
616 * it.
617 */
618 for (i = 0; i < binlen / 2; i++) {
619 unsigned char c;
620 c = bin[i];
621 bin[i] = bin[binlen - i - 1];
622 bin[binlen - i - 1] = c;
623 }
624
625 if (!BN_bin2bn(bin, binlen, bn))
626 return 0;
627 return 1;
628}
7a18ecb2 629
b3c8dd4e
DSH		 630/* Given a CAPI_KEY get an EVP_PKEY structure */
631
0f113f3e
MC		 632static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY * key)
633{
634 unsigned char *pubkey = NULL;
635 DWORD len;
636 BLOBHEADER *bh;
637 RSA *rkey = NULL;
638 DSA *dkey = NULL;
639 EVP_PKEY *ret = NULL;
640 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
641 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
642 capi_addlasterror();
643 return NULL;
644 }
645
646 pubkey = OPENSSL_malloc(len);
647
648 if (!pubkey)
649 goto memerr;
650
651 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
652 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
653 capi_addlasterror();
654 goto err;
655 }
656
657 bh = (BLOBHEADER *) pubkey;
658 if (bh->bType != PUBLICKEYBLOB) {
659 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
660 goto err;
661 }
662 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
663 RSAPUBKEY *rp;
664 DWORD rsa_modlen;
665 unsigned char *rsa_modulus;
666 rp = (RSAPUBKEY *) (bh + 1);
667 if (rp->magic != 0x31415352) {
668 char magstr[10];
669 BIO_snprintf(magstr, 10, "%lx", rp->magic);
670 CAPIerr(CAPI_F_CAPI_GET_PKEY,
671 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
672 ERR_add_error_data(2, "magic=0x", magstr);
673 goto err;
674 }
675 rsa_modulus = (unsigned char *)(rp + 1);
676 rkey = RSA_new_method(eng);
677 if (!rkey)
678 goto memerr;
679
680 rkey->e = BN_new();
681 rkey->n = BN_new();
682
683 if (!rkey->e || !rkey->n)
684 goto memerr;
685
686 if (!BN_set_word(rkey->e, rp->pubexp))
687 goto memerr;
688
689 rsa_modlen = rp->bitlen / 8;
690 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
691 goto memerr;
692
693 RSA_set_ex_data(rkey, rsa_capi_idx, key);
694
695 if (!(ret = EVP_PKEY_new()))
696 goto memerr;
697
698 EVP_PKEY_assign_RSA(ret, rkey);
699 rkey = NULL;
700
701 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
702 DSSPUBKEY *dp;
703 DWORD dsa_plen;
704 unsigned char *btmp;
705 dp = (DSSPUBKEY *) (bh + 1);
706 if (dp->magic != 0x31535344) {
707 char magstr[10];
708 BIO_snprintf(magstr, 10, "%lx", dp->magic);
709 CAPIerr(CAPI_F_CAPI_GET_PKEY,
710 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
711 ERR_add_error_data(2, "magic=0x", magstr);
712 goto err;
713 }
714 dsa_plen = dp->bitlen / 8;
715 btmp = (unsigned char *)(dp + 1);
716 dkey = DSA_new_method(eng);
717 if (!dkey)
718 goto memerr;
719 dkey->p = BN_new();
720 dkey->q = BN_new();
721 dkey->g = BN_new();
722 dkey->pub_key = BN_new();
723 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
724 goto memerr;
725 if (!lend_tobn(dkey->p, btmp, dsa_plen))
726 goto memerr;
727 btmp += dsa_plen;
728 if (!lend_tobn(dkey->q, btmp, 20))
729 goto memerr;
730 btmp += 20;
731 if (!lend_tobn(dkey->g, btmp, dsa_plen))
732 goto memerr;
733 btmp += dsa_plen;
734 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
735 goto memerr;
736 btmp += dsa_plen;
737
738 DSA_set_ex_data(dkey, dsa_capi_idx, key);
739
740 if (!(ret = EVP_PKEY_new()))
741 goto memerr;
742
743 EVP_PKEY_assign_DSA(ret, dkey);
744 dkey = NULL;
745 } else {
746 char algstr[10];
747 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
748 CAPIerr(CAPI_F_CAPI_GET_PKEY,
749 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
750 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
751 goto err;
752 }
753
754 err:
755 if (pubkey)
756 OPENSSL_free(pubkey);
757 if (!ret) {
758 if (rkey)
759 RSA_free(rkey);
760 if (dkey)
761 DSA_free(dkey);
762 }
763
764 return ret;
765
766 memerr:
767 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
768 goto err;
769
770}
7a18ecb2 771
b3c8dd4e 772static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
0f113f3e
MC		 773 UI_METHOD *ui_method, void *callback_data)
774{
775 CAPI_CTX *ctx;
776 CAPI_KEY *key;
777 EVP_PKEY *ret;
778 ctx = ENGINE_get_ex_data(eng, capi_idx);
b3c8dd4e 779
0f113f3e
MC		 780 if (!ctx) {
781 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
782 return NULL;
783 }
b3c8dd4e 784
0f113f3e 785 key = capi_find_key(ctx, key_id);
b3c8dd4e 786
0f113f3e
MC		 787 if (!key)
788 return NULL;
b3c8dd4e 789
0f113f3e 790 ret = capi_get_pkey(eng, key);
b3c8dd4e 791
0f113f3e
MC		 792 if (!ret)
793 capi_free_key(key);
794 return ret;
b3c8dd4e 795
0f113f3e 796}
b3c8dd4e 797
7a18ecb2
DSH		 798/* CryptoAPI RSA operations */
799
800int capi_rsa_priv_enc(int flen, const unsigned char *from,
0f113f3e
MC		 801 unsigned char *to, RSA *rsa, int padding)
802{
803 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
804 return -1;
805}
7a18ecb2
DSH		 806
807int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
0f113f3e
MC		 808 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
809{
810 ALG_ID alg;
811 HCRYPTHASH hash;
812 DWORD slen;
813 unsigned int i;
814 int ret = -1;
815 CAPI_KEY *capi_key;
816 CAPI_CTX *ctx;
817
818 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
819
820 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
821
822 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
823 if (!capi_key) {
824 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
825 return -1;
826 }
7a18ecb2 827/* Convert the signature type to a CryptoAPI algorithm ID */
0f113f3e
MC		 828 switch (dtype) {
829 case NID_sha256:
830 alg = CALG_SHA_256;
831 break;
832
833 case NID_sha384:
834 alg = CALG_SHA_384;
835 break;
836
837 case NID_sha512:
838 alg = CALG_SHA_512;
839 break;
840
841 case NID_sha1:
842 alg = CALG_SHA1;
843 break;
844
845 case NID_md5:
846 alg = CALG_MD5;
847 break;
848
849 case NID_md5_sha1:
850 alg = CALG_SSL3_SHAMD5;
851 break;
852 default:
853 {
854 char algstr[10];
855 BIO_snprintf(algstr, 10, "%lx", dtype);
856 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
857 ERR_add_error_data(2, "NID=0x", algstr);
858 return -1;
859 }
860 }
7a18ecb2
DSH		 861
862/* Create the hash object */
0f113f3e
MC		 863 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
864 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
865 capi_addlasterror();
866 return -1;
867 }
7a18ecb2
DSH		 868/* Set the hash value to the value passed */
869
0f113f3e
MC		 870 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
871 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
872 capi_addlasterror();
873 goto err;
874 }
7a18ecb2
DSH		 875
876/* Finally sign it */
0f113f3e
MC		 877 slen = RSA_size(rsa);
878 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
879 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
880 capi_addlasterror();
881 goto err;
882 } else {
883 ret = 1;
884 /* Inplace byte reversal of signature */
885 for (i = 0; i < slen / 2; i++) {
886 unsigned char c;
887 c = sigret[i];
888 sigret[i] = sigret[slen - i - 1];
889 sigret[slen - i - 1] = c;
890 }
891 *siglen = slen;
892 }
893
894 /* Now cleanup */
895
896 err:
897 CryptDestroyHash(hash);
898
899 return ret;
900}
7a18ecb2
DSH		 901
902int capi_rsa_priv_dec(int flen, const unsigned char *from,
0f113f3e
MC		 903 unsigned char *to, RSA *rsa, int padding)
904{
905 int i;
906 unsigned char *tmpbuf;
907 CAPI_KEY *capi_key;
908 CAPI_CTX *ctx;
909 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
910
911 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
912
913 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
914 if (!capi_key) {
915 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
916 return -1;
917 }
918
919 if (padding != RSA_PKCS1_PADDING) {
920 char errstr[10];
921 BIO_snprintf(errstr, 10, "%d", padding);
922 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
923 ERR_add_error_data(2, "padding=", errstr);
924 return -1;
925 }
926
927 /* Create temp reverse order version of input */
928 if (!(tmpbuf = OPENSSL_malloc(flen))) {
929 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
930 return -1;
931 }
932 for (i = 0; i < flen; i++)
933 tmpbuf[flen - i - 1] = from[i];
934
935 /* Finally decrypt it */
936 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen)) {
937 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
938 capi_addlasterror();
939 OPENSSL_free(tmpbuf);
940 return -1;
941 } else
942 memcpy(to, tmpbuf, flen);
943
944 OPENSSL_free(tmpbuf);
945
946 return flen;
947}
7a18ecb2
DSH		 948
949static int capi_rsa_free(RSA *rsa)
0f113f3e
MC		 950{
951 CAPI_KEY *capi_key;
952 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
953 capi_free_key(capi_key);
954 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
955 return 1;
956}
7a18ecb2
DSH		 957
958/* CryptoAPI DSA operations */
959
960static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
0f113f3e
MC		 961 DSA *dsa)
962{
963 HCRYPTHASH hash;
964 DWORD slen;
965 DSA_SIG *ret = NULL;
966 CAPI_KEY *capi_key;
967 CAPI_CTX *ctx;
968 unsigned char csigbuf[40];
969
970 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
971
972 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
973
974 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
975
976 if (!capi_key) {
977 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
978 return NULL;
979 }
980
981 if (dlen != 20) {
982 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
983 return NULL;
984 }
985
986 /* Create the hash object */
987 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
988 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
989 capi_addlasterror();
990 return NULL;
991 }
992
993 /* Set the hash value to the value passed */
994 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
995 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
996 capi_addlasterror();
997 goto err;
998 }
999
1000 /* Finally sign it */
1001 slen = sizeof(csigbuf);
1002 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1003 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1004 capi_addlasterror();
1005 goto err;
1006 } else {
1007 ret = DSA_SIG_new();
1008 if (!ret)
1009 goto err;
1010 ret->r = BN_new();
1011 ret->s = BN_new();
1012 if (!ret->r || !ret->s)
1013 goto err;
1014 if (!lend_tobn(ret->r, csigbuf, 20)
1015 || !lend_tobn(ret->s, csigbuf + 20, 20)) {
1016 DSA_SIG_free(ret);
1017 ret = NULL;
1018 goto err;
1019 }
1020 }
1021
1022 /* Now cleanup */
1023
1024 err:
1025 OPENSSL_cleanse(csigbuf, 40);
1026 CryptDestroyHash(hash);
1027 return ret;
1028}
7a18ecb2
DSH		 1029
1030static int capi_dsa_free(DSA *dsa)
0f113f3e
MC		 1031{
1032 CAPI_KEY *capi_key;
1033 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1034 capi_free_key(capi_key);
1035 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1036 return 1;
1037}
1038
1039static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
1040 va_list argptr)
1041{
1042 BIO *out;
1043
1044 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1045 return;
1046 out = BIO_new_file(ctx->debug_file, "a+");
1047 if (out == NULL) {
1048 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1049 return;
1050 }
1051 BIO_vprintf(out, format, argptr);
1052 BIO_free(out);
1053}
1054
1055static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
1056{
1057 va_list args;
1058 va_start(args, format);
1059 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1060 va_end(args);
1061}
7a18ecb2
DSH		 1062
1063static void capi_addlasterror(void)
0f113f3e
MC		 1064{
1065 capi_adderror(GetLastError());
1066}
7a18ecb2
DSH		 1067
1068static void capi_adderror(DWORD err)
0f113f3e
MC		 1069{
1070 char errstr[10];
1071 BIO_snprintf(errstr, 10, "%lX", err);
1072 ERR_add_error_data(2, "Error code= 0x", errstr);
1073}
7a18ecb2 1074
cc4c2306 1075static char *wide_to_asc(LPCWSTR wstr)
0f113f3e
MC		 1076{
1077 char *str;
1078 int len_0, sz;
1079
1080 if (!wstr)
1081 return NULL;
1082 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1083 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1084 if (!sz) {
1085 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1086 return NULL;
1087 }
1088 str = OPENSSL_malloc(sz);
1089 if (!str) {
1090 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1091 return NULL;
1092 }
1093 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1094 OPENSSL_free(str);
1095 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1096 return NULL;
1097 }
1098 return str;
1099}
1100
1101static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1102 DWORD idx)
1103{
1104 DWORD len, err;
1105 LPTSTR name;
1106 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1107 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1108 err = GetLastError();
1109 if (err == ERROR_NO_MORE_ITEMS)
1110 return 2;
1111 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1112 capi_adderror(err);
1113 return 0;
1114 }
1115 name = OPENSSL_malloc(len);
1116 if (name == NULL) {
1117 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1118 return 0;
1119 }
1120 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1121 err = GetLastError();
1122 OPENSSL_free(name);
1123 if (err == ERROR_NO_MORE_ITEMS)
1124 return 2;
1125 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1126 capi_adderror(err);
1127 return 0;
1128 }
1129 if (sizeof(TCHAR) != sizeof(char)) {
1130 *pname = wide_to_asc((WCHAR *)name);
1131 OPENSSL_free(name);
1132 if (*pname == NULL)
1133 return 0;
1134 } else
1135 *pname = (char *)name;
1136 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1137 *ptype);
1138
1139 return 1;
1140}
1141
1142static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1143{
1144 DWORD idx, ptype;
1145 int ret;
1146 LPSTR provname = NULL;
1147 CAPI_trace(ctx, "capi_list_providers\n");
1148 BIO_printf(out, "Available CSPs:\n");
1149 for (idx = 0;; idx++) {
1150 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1151 if (ret == 2)
1152 break;
1153 if (ret == 0)
1154 break;
1155 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1156 OPENSSL_free(provname);
1157 }
1158 return 1;
1159}
1160
1161static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1162{
1163 int ret = 1;
1164 HCRYPTPROV hprov;
1165 DWORD err, idx, flags, buflen = 0, clen;
1166 LPSTR cname;
1167 LPTSTR cspname = NULL;
1168
1169 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1170 ctx->csptype);
1171 if (ctx->cspname && sizeof(TCHAR) != sizeof(char)) {
1172 if ((clen =
1173 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))) {
1174 cspname = alloca(clen * sizeof(WCHAR));
1175 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1176 clen);
1177 }
1178 if (!cspname) {
1179 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1180 capi_addlasterror();
1181 return 0;
1182 }
1183 } else
1184 cspname = (TCHAR *)ctx->cspname;
1185 if (!CryptAcquireContext
1186 (&hprov, NULL, cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1187 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1188 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1189 capi_addlasterror();
1190 return 0;
1191 }
1192 if (!CryptGetProvParam
1193 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1194 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1195 capi_addlasterror();
1196 CryptReleaseContext(hprov, 0);
1197 return 0;
1198 }
1199 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1200 if (buflen == 0)
1201 buflen = 1024;
1202 cname = OPENSSL_malloc(buflen);
1203 if (!cname) {
1204 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1205 goto err;
1206 }
1207
1208 for (idx = 0;; idx++) {
1209 clen = buflen;
1210 cname[0] = 0;
1211
1212 if (idx == 0)
1213 flags = CRYPT_FIRST;
1214 else
1215 flags = 0;
1216 if (!CryptGetProvParam
1217 (hprov, PP_ENUMCONTAINERS, (BYTE *) cname, &clen, flags)) {
1218 err = GetLastError();
1219 if (err == ERROR_NO_MORE_ITEMS)
1220 goto done;
1221 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1222 capi_adderror(err);
1223 goto err;
1224 }
1225 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1226 cname, clen, idx, flags);
1227 if (!cname[0] && (clen == buflen)) {
1228 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1229 goto done;
1230 }
1231 BIO_printf(out, "%d. %s\n", idx, cname);
1232 }
1233 err:
1234
1235 ret = 0;
1236
1237 done:
1238 if (cname)
1239 OPENSSL_free(cname);
1240 CryptReleaseContext(hprov, 0);
1241
1242 return ret;
1243}
1244
1245CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1246{
1247 DWORD len;
1248 CRYPT_KEY_PROV_INFO *pinfo;
1249
1250 if (!CertGetCertificateContextProperty
1251 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1252 return NULL;
1253 pinfo = OPENSSL_malloc(len);
1254 if (!pinfo) {
1255 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1256 return NULL;
1257 }
1258 if (!CertGetCertificateContextProperty
1259 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1260 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1261 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1262 capi_addlasterror();
1263 OPENSSL_free(pinfo);
1264 return NULL;
1265 }
1266 return pinfo;
1267}
1268
1269static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1270 CRYPT_KEY_PROV_INFO * pinfo)
1271{
1272 char *provname = NULL, *contname = NULL;
1273 if (!pinfo) {
1274 BIO_printf(out, " No Private Key\n");
1275 return;
1276 }
1277 provname = wide_to_asc(pinfo->pwszProvName);
1278 contname = wide_to_asc(pinfo->pwszContainerName);
1279 if (!provname || !contname)
1280 goto err;
1281
1282 BIO_printf(out, " Private Key Info:\n");
1283 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname,
1284 pinfo->dwProvType);
1285 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname,
1286 pinfo->dwKeySpec);
1287 err:
1288 if (provname)
1289 OPENSSL_free(provname);
1290 if (contname)
1291 OPENSSL_free(contname);
1292}
1293
1294char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1295{
1296 LPWSTR wfname;
1297 DWORD dlen;
1298
1299 CAPI_trace(ctx, "capi_cert_get_fname\n");
1300 if (!CertGetCertificateContextProperty
1301 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1302 return NULL;
1303 wfname = OPENSSL_malloc(dlen);
1304 if (wfname == NULL)
1305 return NULL;
1306 if (CertGetCertificateContextProperty
1307 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1308 char *fname = wide_to_asc(wfname);
1309 OPENSSL_free(wfname);
1310 return fname;
1311 }
1312 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1313 capi_addlasterror();
1314
1315 OPENSSL_free(wfname);
1316 return NULL;
1317}
1318
1319void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
1320{
1321 X509 *x;
1322 unsigned char *p;
1323 unsigned long flags = ctx->dump_flags;
1324 if (flags & CAPI_DMP_FNAME) {
1325 char *fname;
1326 fname = capi_cert_get_fname(ctx, cert);
1327 if (fname) {
1328 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1329 OPENSSL_free(fname);
1330 } else
1331 BIO_printf(out, " <No Friendly Name>\n");
1332 }
1333
1334 p = cert->pbCertEncoded;
1335 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1336 if (!x)
1337 BIO_printf(out, " <Can't parse certificate>\n");
1338 if (flags & CAPI_DMP_SUMMARY) {
1339 BIO_printf(out, " Subject: ");
1340 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1341 BIO_printf(out, "\n Issuer: ");
1342 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1343 BIO_printf(out, "\n");
1344 }
1345 if (flags & CAPI_DMP_FULL)
1346 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1347
1348 if (flags & CAPI_DMP_PKEYINFO) {
1349 CRYPT_KEY_PROV_INFO *pinfo;
1350 pinfo = capi_get_prov_info(ctx, cert);
1351 capi_dump_prov_info(ctx, out, pinfo);
1352 if (pinfo)
1353 OPENSSL_free(pinfo);
1354 }
1355
1356 if (flags & CAPI_DMP_PEM)
1357 PEM_write_bio_X509(out, x);
1358 X509_free(x);
1359}
1360
1361HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
1362{
1363 HCERTSTORE hstore;
1364
1365 if (!storename)
1366 storename = ctx->storename;
1367 if (!storename)
1368 storename = "MY";
1369 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1370
1371 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1372 ctx->store_flags, storename);
1373 if (!hstore) {
1374 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1375 capi_addlasterror();
1376 }
1377 return hstore;
1378}
1379
1380int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1381{
1382 char *storename;
1383 int idx;
1384 int ret = 1;
1385 HCERTSTORE hstore;
1386 PCCERT_CONTEXT cert = NULL;
1387
1388 storename = ctx->storename;
1389 if (!storename)
1390 storename = "MY";
1391 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1392
1393 hstore = capi_open_store(ctx, storename);
1394 if (!hstore)
1395 return 0;
1396 if (id) {
1397 cert = capi_find_cert(ctx, id, hstore);
1398 if (!cert) {
1399 ret = 0;
1400 goto err;
1401 }
1402 capi_dump_cert(ctx, out, cert);
1403 CertFreeCertificateContext(cert);
1404 } else {
1405 for (idx = 0;; idx++) {
1406 cert = CertEnumCertificatesInStore(hstore, cert);
1407 if (!cert)
1408 break;
1409 BIO_printf(out, "Certificate %d\n", idx);
1410 capi_dump_cert(ctx, out, cert);
1411 }
1412 }
1413 err:
1414 CertCloseStore(hstore, 0);
1415 return ret;
1416}
1417
1418static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1419 HCERTSTORE hstore)
1420{
1421 PCCERT_CONTEXT cert = NULL;
1422 char *fname = NULL;
1423 int match;
1424 switch (ctx->lookup_method) {
1425 case CAPI_LU_SUBSTR:
1426 return CertFindCertificateInStore(hstore,
1427 X509_ASN_ENCODING, 0,
1428 CERT_FIND_SUBJECT_STR_A, id, NULL);
1429 case CAPI_LU_FNAME:
1430 for (;;) {
1431 cert = CertEnumCertificatesInStore(hstore, cert);
1432 if (!cert)
1433 return NULL;
1434 fname = capi_cert_get_fname(ctx, cert);
1435 if (fname) {
1436 if (strcmp(fname, id))
1437 match = 0;
1438 else
1439 match = 1;
1440 OPENSSL_free(fname);
1441 if (match)
1442 return cert;
1443 }
1444 }
1445 default:
1446 return NULL;
1447 }
1448}
1449
1450static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const TCHAR *contname,
1451 TCHAR *provname, DWORD ptype, DWORD keyspec)
1452{
1453 CAPI_KEY *key;
1454 DWORD dwFlags = 0;
1455 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1456 if (key == NULL)
1457 return NULL;
1458 if (sizeof(TCHAR) == sizeof(char))
1459 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1460 contname, provname, ptype);
1461 else if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1462 /* above 'if' is optimization to minimize malloc-ations */
1463 char *_contname = wide_to_asc((WCHAR *)contname);
1464 char *_provname = wide_to_asc((WCHAR *)provname);
1465
1466 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1467 _contname, _provname, ptype);
1468 if (_provname)
1469 OPENSSL_free(_provname);
1470 if (_contname)
1471 OPENSSL_free(_contname);
1472 }
1473 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1474 dwFlags = CRYPT_MACHINE_KEYSET;
1475 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, dwFlags)) {
1476 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1477 capi_addlasterror();
1478 goto err;
1479 }
1480 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1481 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1482 capi_addlasterror();
1483 CryptReleaseContext(key->hprov, 0);
1484 goto err;
1485 }
1486 key->keyspec = keyspec;
1487 key->pcert = NULL;
1488 return key;
1489
1490 err:
1491 OPENSSL_free(key);
1492 return NULL;
1493}
1494
1495static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1496{
1497 CAPI_KEY *key = NULL;
1498 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1499 char *provname = NULL, *contname = NULL;
1500 pinfo = capi_get_prov_info(ctx, cert);
1501 if (!pinfo)
1502 goto err;
1503 if (sizeof(TCHAR) != sizeof(char))
1504 key = capi_get_key(ctx, (TCHAR *)pinfo->pwszContainerName,
1505 (TCHAR *)pinfo->pwszProvName,
1506 pinfo->dwProvType, pinfo->dwKeySpec);
1507 else {
1508 provname = wide_to_asc(pinfo->pwszProvName);
1509 contname = wide_to_asc(pinfo->pwszContainerName);
1510 if (!provname || !contname)
1511 goto err;
1512 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1513 pinfo->dwProvType, pinfo->dwKeySpec);
1514 }
1515
1516 err:
1517 if (pinfo)
1518 OPENSSL_free(pinfo);
1519 if (provname)
1520 OPENSSL_free(provname);
1521 if (contname)
1522 OPENSSL_free(contname);
1523 return key;
1524}
1525
1526CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1527{
1528 PCCERT_CONTEXT cert;
1529 HCERTSTORE hstore;
1530 CAPI_KEY *key = NULL;
1531 switch (ctx->lookup_method) {
1532 case CAPI_LU_SUBSTR:
1533 case CAPI_LU_FNAME:
1534 hstore = capi_open_store(ctx, NULL);
1535 if (!hstore)
1536 return NULL;
1537 cert = capi_find_cert(ctx, id, hstore);
1538 if (cert) {
1539 key = capi_get_cert_key(ctx, cert);
1540 CertFreeCertificateContext(cert);
1541 }
1542 CertCloseStore(hstore, 0);
1543 break;
1544
1545 case CAPI_LU_CONTNAME:
1546 if (sizeof(TCHAR) != sizeof(char)) {
1547 WCHAR *contname, *provname;
1548 DWORD len;
1549
1550 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1551 (contname = alloca(len * sizeof(WCHAR)),
1552 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1553 (len =
1554 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))
1555 && (provname =
1556 alloca(len * sizeof(WCHAR)), MultiByteToWideChar(CP_ACP,
1557 0,
1558 ctx->cspname,
1559 -1,
1560 provname,
1561 len)))
1562 key =
1563 capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1564 ctx->csptype, ctx->keytype);
1565 } else
1566 key = capi_get_key(ctx, (TCHAR *)id,
1567 (TCHAR *)ctx->cspname,
1568 ctx->csptype, ctx->keytype);
1569 break;
1570 }
1571
1572 return key;
1573}
1574
1575void capi_free_key(CAPI_KEY * key)
1576{
1577 if (!key)
1578 return;
1579 CryptDestroyKey(key->key);
1580 CryptReleaseContext(key->hprov, 0);
1581 if (key->pcert)
1582 CertFreeCertificateContext(key->pcert);
1583 OPENSSL_free(key);
1584}
7a18ecb2
DSH		 1585
1586/* Initialize a CAPI_CTX structure */
1587
1588static CAPI_CTX *capi_ctx_new()
0f113f3e
MC		 1589{
1590 CAPI_CTX *ctx;
1591 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1592 if (!ctx) {
1593 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1594 return NULL;
1595 }
1596 ctx->cspname = NULL;
1597 ctx->csptype = PROV_RSA_FULL;
1598 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1599 ctx->keytype = AT_KEYEXCHANGE;
1600 ctx->storename = NULL;
1601 ctx->ssl_client_store = NULL;
1602 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1603 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1604 ctx->lookup_method = CAPI_LU_SUBSTR;
1605 ctx->debug_level = 0;
1606 ctx->debug_file = NULL;
1607 ctx->client_cert_select = cert_select_simple;
1608 return ctx;
1609}
1610
1611static void capi_ctx_free(CAPI_CTX * ctx)
1612{
1613 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1614 if (!ctx)
1615 return;
1616 if (ctx->cspname)
1617 OPENSSL_free(ctx->cspname);
1618 if (ctx->debug_file)
1619 OPENSSL_free(ctx->debug_file);
1620 if (ctx->storename)
1621 OPENSSL_free(ctx->storename);
1622 if (ctx->ssl_client_store)
1623 OPENSSL_free(ctx->ssl_client_store);
1624 OPENSSL_free(ctx);
1625}
1626
1627static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1628 int check)
1629{
1630 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1631 if (check) {
1632 HCRYPTPROV hprov;
1633 LPTSTR name = NULL;
1634
1635 if (sizeof(TCHAR) != sizeof(char)) {
1636 DWORD len;
1637 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1638 name = alloca(len * sizeof(WCHAR));
1639 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1640 }
1641 } else
1642 name = (TCHAR *)pname;
1643
1644 if (!name || !CryptAcquireContext(&hprov, NULL, name, type,
1645 CRYPT_VERIFYCONTEXT)) {
1646 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1647 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1648 capi_addlasterror();
1649 return 0;
1650 }
1651 CryptReleaseContext(hprov, 0);
1652 }
1653 if (ctx->cspname)
1654 OPENSSL_free(ctx->cspname);
1655 ctx->cspname = BUF_strdup(pname);
1656 ctx->csptype = type;
1657 return 1;
1658}
1659
1660static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1661{
1662 LPSTR pname;
1663 DWORD type;
1664 int res;
1665 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1666 return 0;
1667 res = capi_ctx_set_provname(ctx, pname, type, 0);
1668 OPENSSL_free(pname);
1669 return res;
1670}
7a18ecb2 1671
b3c8dd4e 1672static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
0f113f3e
MC		 1673{
1674 int i;
1675 X509_NAME *nm;
1676 /* Special case: empty list: match anything */
1677 if (sk_X509_NAME_num(ca_dn) <= 0)
1678 return 1;
1679 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1680 nm = sk_X509_NAME_value(ca_dn, i);
1681 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1682 return 1;
1683 }
1684 return 0;
1685}
7d537d4f 1686
b3c8dd4e 1687static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
0f113f3e
MC		 1688 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1689 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1690 UI_METHOD *ui_method,
1691 void *callback_data)
1692{
1693 STACK_OF(X509) *certs = NULL;
1694 X509 *x;
1695 char *storename;
1696 const char *p;
1697 int i, client_cert_idx;
1698 HCERTSTORE hstore;
1699 PCCERT_CONTEXT cert = NULL, excert = NULL;
1700 CAPI_CTX *ctx;
1701 CAPI_KEY *key;
1702 ctx = ENGINE_get_ex_data(e, capi_idx);
1703
1704 *pcert = NULL;
1705 *pkey = NULL;
1706
1707 storename = ctx->ssl_client_store;
1708 if (!storename)
1709 storename = "MY";
1710
1711 hstore = capi_open_store(ctx, storename);
1712 if (!hstore)
1713 return 0;
1714 /* Enumerate all certificates collect any matches */
1715 for (i = 0;; i++) {
1716 cert = CertEnumCertificatesInStore(hstore, cert);
1717 if (!cert)
1718 break;
1719 p = cert->pbCertEncoded;
1720 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1721 if (!x) {
1722 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1723 continue;
1724 }
1725 if (cert_issuer_match(ca_dn, x)
1726 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1727 key = capi_get_cert_key(ctx, cert);
1728 if (!key) {
1729 X509_free(x);
1730 continue;
1731 }
1732 /*
1733 * Match found: attach extra data to it so we can retrieve the
1734 * key later.
1735 */
1736 excert = CertDuplicateCertificateContext(cert);
1737 key->pcert = excert;
1738 X509_set_ex_data(x, cert_capi_idx, key);
1739
1740 if (!certs)
1741 certs = sk_X509_new_null();
1742
1743 sk_X509_push(certs, x);
1744 } else
1745 X509_free(x);
1746
1747 }
1748
1749 if (cert)
1750 CertFreeCertificateContext(cert);
1751 if (hstore)
1752 CertCloseStore(hstore, 0);
1753
1754 if (!certs)
1755 return 0;
1756
1757 /* Select the appropriate certificate */
1758
1759 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1760
1761 /* Set the selected certificate and free the rest */
1762
1763 for (i = 0; i < sk_X509_num(certs); i++) {
1764 x = sk_X509_value(certs, i);
1765 if (i == client_cert_idx)
1766 *pcert = x;
1767 else {
1768 key = X509_get_ex_data(x, cert_capi_idx);
1769 capi_free_key(key);
1770 X509_free(x);
1771 }
1772 }
1773
1774 sk_X509_free(certs);
1775
1776 if (!*pcert)
1777 return 0;
1778
1779 /* Setup key for selected certificate */
1780
1781 key = X509_get_ex_data(*pcert, cert_capi_idx);
1782 *pkey = capi_get_pkey(e, key);
1783 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1784
1785 return 1;
1786
1787}
e0f7b872
DSH		 1788
1789/* Simple client cert selection function: always select first */
1790
1cd504e7 1791static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1792{
1793 return 0;
1794}
e0f7b872 1795
0f113f3e 1796# ifdef OPENSSL_CAPIENG_DIALOG
e0f7b872 1797
0f113f3e
MC		 1798/*
1799 * More complex cert selection function, using standard function
e0f7b872
DSH		 1800 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1801 */
1802
0f113f3e
MC		 1803/*
1804 * Definitions which are in cryptuiapi.h but this is not present in older
a0f3679b
DSH		 1805 * versions of headers.
1806 */
1807
0f113f3e
MC		 1808# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1809# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1810# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1811# endif
e0f7b872 1812
0f113f3e
MC		 1813# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1814# define dlg_prompt L"Select a certificate to use for authentication"
1815# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1816 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1381bf90 1817
1cd504e7 1818static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1819{
1820 X509 *x;
1821 HCERTSTORE dstore;
1822 PCCERT_CONTEXT cert;
1823 CAPI_CTX *ctx;
1824 CAPI_KEY *key;
1825 HWND hwnd;
1826 int i, idx = -1;
1827 if (sk_X509_num(certs) == 1)
1828 return 0;
1829 ctx = ENGINE_get_ex_data(e, capi_idx);
1830 /* Create an in memory store of certificates */
1831 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1832 CERT_STORE_CREATE_NEW_FLAG, NULL);
1833 if (!dstore) {
1834 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1835 capi_addlasterror();
1836 goto err;
1837 }
1838 /* Add all certificates to store */
1839 for (i = 0; i < sk_X509_num(certs); i++) {
1840 x = sk_X509_value(certs, i);
1841 key = X509_get_ex_data(x, cert_capi_idx);
1842
1843 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1844 CERT_STORE_ADD_NEW, NULL)) {
1845 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1846 capi_addlasterror();
1847 goto err;
1848 }
1849
1850 }
1851 hwnd = GetForegroundWindow();
1852 if (!hwnd)
1853 hwnd = GetActiveWindow();
1854 if (!hwnd && ctx->getconswindow)
1855 hwnd = ctx->getconswindow();
1856 /* Call dialog to select one */
1857 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1858 dlg_columns, 0, NULL);
1859
1860 /* Find matching cert from list */
1861 if (cert) {
1862 for (i = 0; i < sk_X509_num(certs); i++) {
1863 x = sk_X509_value(certs, i);
1864 key = X509_get_ex_data(x, cert_capi_idx);
1865 if (CertCompareCertificate
1866 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1867 key->pcert->pCertInfo)) {
1868 idx = i;
1869 break;
1870 }
1871 }
1872 }
1873
1874 err:
1875 if (dstore)
1876 CertCloseStore(dstore, 0);
1877 return idx;
1878
1879}
1880# endif
1881
1882#else /* !__COMPILE_CAPIENG */
1883# include <openssl/engine.h>
1884# ifndef OPENSSL_NO_DYNAMIC_ENGINE
492279f6 1885OPENSSL_EXPORT
0f113f3e 1886 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
eb164d0b 1887OPENSSL_EXPORT
0f113f3e
MC		 1888 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1889{
1890 return 0;
1891}
1892
492279f6 1893IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e
MC		 1894# else
1895void ENGINE_load_capi(void)
1896{
1897}
1898# endif
7a18ecb2 1899#endif
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