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Fix -Wshadow warnings in mingw builds.
[thirdparty/openssl.git] / engines / e_capi.c
CommitLineData
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 102# undef X509_EXTENSIONS
11f3cee9 103
a0f3679b 104/* Definitions which may be missing from earlier version of headers */
0f113f3e
MC		 105# ifndef CERT_STORE_OPEN_EXISTING_FLAG
106# define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
107# endif
108
109# ifndef CERT_STORE_CREATE_NEW_FLAG
110# define CERT_STORE_CREATE_NEW_FLAG 0x00002000
111# endif
112
113# ifndef CERT_SYSTEM_STORE_CURRENT_USER
114# define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
115# endif
116
117# ifndef ALG_SID_SHA_256
118# define ALG_SID_SHA_256 12
119# endif
120# ifndef ALG_SID_SHA_384
121# define ALG_SID_SHA_384 13
122# endif
123# ifndef ALG_SID_SHA_512
124# define ALG_SID_SHA_512 14
125# endif
126
127# ifndef CALG_SHA_256
128# define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
129# endif
130# ifndef CALG_SHA_384
131# define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
132# endif
133# ifndef CALG_SHA_512
134# define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
135# endif
136
137# include <openssl/engine.h>
138# include <openssl/pem.h>
139# include <openssl/x509v3.h>
140
141# include "e_capi_err.h"
142# include "e_capi_err.c"
7a18ecb2
DSH		 143
144static const char *engine_capi_id = "capi";
145static const char *engine_capi_name = "CryptoAPI ENGINE";
146
147typedef struct CAPI_CTX_st CAPI_CTX;
148typedef struct CAPI_KEY_st CAPI_KEY;
149
150static void capi_addlasterror(void);
151static void capi_adderror(DWORD err);
152
0f113f3e 153static void CAPI_trace(CAPI_CTX * ctx, char *format, ...);
7a18ecb2 154
0f113f3e
MC		 155static int capi_list_providers(CAPI_CTX * ctx, BIO *out);
156static int capi_list_containers(CAPI_CTX * ctx, BIO *out);
157int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *storename);
158void capi_free_key(CAPI_KEY * key);
7a18ecb2 159
0f113f3e
MC		 160static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
161 HCERTSTORE hstore);
7a18ecb2 162
0f113f3e 163CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id);
7a18ecb2
DSH		 164
165static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
0f113f3e
MC		 166 UI_METHOD *ui_method, void *callback_data);
167static int capi_rsa_sign(int dtype, const unsigned char *m,
168 unsigned int m_len, unsigned char *sigret,
169 unsigned int *siglen, const RSA *rsa);
7a18ecb2 170static int capi_rsa_priv_enc(int flen, const unsigned char *from,
0f113f3e 171 unsigned char *to, RSA *rsa, int padding);
7a18ecb2 172static int capi_rsa_priv_dec(int flen, const unsigned char *from,
0f113f3e 173 unsigned char *to, RSA *rsa, int padding);
7a18ecb2
DSH		 174static int capi_rsa_free(RSA *rsa);
175
176static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
0f113f3e 177 DSA *dsa);
7a18ecb2 178static int capi_dsa_free(DSA *dsa);
b3c8dd4e
DSH		 179
180static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
0f113f3e
MC		 181 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
182 EVP_PKEY **pkey, STACK_OF(X509) **pother,
183 UI_METHOD *ui_method,
184 void *callback_data);
1cd504e7
DSH		 185
186static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
0f113f3e 187# ifdef OPENSSL_CAPIENG_DIALOG
1cd504e7 188static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
0f113f3e 189# endif
1cd504e7 190
0f113f3e
MC		 191typedef PCCERT_CONTEXT(WINAPI *CERTDLG) (HCERTSTORE, HWND, LPCWSTR,
192 LPCWSTR, DWORD, DWORD, void *);
193typedef HWND(WINAPI *GETCONSWIN) (void);
1cd504e7 194
0f113f3e
MC		 195/*
196 * This structure contains CAPI ENGINE specific data: it contains various
197 * global options and affects how other functions behave.
7a18ecb2
DSH		 198 */
199
0f113f3e
MC		 200# define CAPI_DBG_TRACE 2
201# define CAPI_DBG_ERROR 1
7a18ecb2
DSH		 202
203struct CAPI_CTX_st {
0f113f3e
MC		 204 int debug_level;
205 char *debug_file;
206 /* Parameters to use for container lookup */
207 DWORD keytype;
208 LPSTR cspname;
209 DWORD csptype;
210 /* Certificate store name to use */
211 LPSTR storename;
212 LPSTR ssl_client_store;
213 /* System store flags */
214 DWORD store_flags;
7a18ecb2
DSH		 215/* Lookup string meanings in load_private_key */
216/* Substring of subject: uses "storename" */
0f113f3e 217# define CAPI_LU_SUBSTR 1
7a18ecb2 218/* Friendly name: uses storename */
0f113f3e 219# define CAPI_LU_FNAME 2
7a18ecb2 220/* Container name: uses cspname, keytype */
0f113f3e
MC		 221# define CAPI_LU_CONTNAME 3
222 int lookup_method;
7a18ecb2
DSH		 223/* Info to dump with dumpcerts option */
224/* Issuer and serial name strings */
0f113f3e 225# define CAPI_DMP_SUMMARY 0x1
7a18ecb2 226/* Friendly name */
0f113f3e 227# define CAPI_DMP_FNAME 0x2
7a18ecb2 228/* Full X509_print dump */
0f113f3e 229# define CAPI_DMP_FULL 0x4
7a18ecb2 230/* Dump PEM format certificate */
0f113f3e 231# define CAPI_DMP_PEM 0x8
7a18ecb2 232/* Dump pseudo key (if possible) */
0f113f3e 233# define CAPI_DMP_PSKEY 0x10
7a18ecb2 234/* Dump key info (if possible) */
0f113f3e
MC		 235# define CAPI_DMP_PKEYINFO 0x20
236 DWORD dump_flags;
237 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
238 CERTDLG certselectdlg;
239 GETCONSWIN getconswindow;
7a18ecb2
DSH		 240};
241
7a18ecb2 242static CAPI_CTX *capi_ctx_new();
0f113f3e
MC		 243static void capi_ctx_free(CAPI_CTX * ctx);
244static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
245 int check);
246static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx);
247
248# define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
249# define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
250# define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
251# define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
252# define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
253# define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
254# define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
255# define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
256# define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
257# define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
258# define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
259# define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
260# define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
261# define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
7a18ecb2
DSH		 262
263static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
0f113f3e
MC		 264 {CAPI_CMD_LIST_CERTS,
265 "list_certs",
266 "List all certificates in store",
267 ENGINE_CMD_FLAG_NO_INPUT},
268 {CAPI_CMD_LOOKUP_CERT,
269 "lookup_cert",
270 "Lookup and output certificates",
271 ENGINE_CMD_FLAG_STRING},
272 {CAPI_CMD_DEBUG_LEVEL,
273 "debug_level",
274 "debug level (1=errors, 2=trace)",
275 ENGINE_CMD_FLAG_NUMERIC},
276 {CAPI_CMD_DEBUG_FILE,
277 "debug_file",
278 "debugging filename)",
279 ENGINE_CMD_FLAG_STRING},
280 {CAPI_CMD_KEYTYPE,
281 "key_type",
282 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
283 ENGINE_CMD_FLAG_NUMERIC},
284 {CAPI_CMD_LIST_CSPS,
285 "list_csps",
286 "List all CSPs",
287 ENGINE_CMD_FLAG_NO_INPUT},
288 {CAPI_CMD_SET_CSP_IDX,
289 "csp_idx",
290 "Set CSP by index",
291 ENGINE_CMD_FLAG_NUMERIC},
292 {CAPI_CMD_SET_CSP_NAME,
293 "csp_name",
294 "Set CSP name, (default CSP used if not specified)",
295 ENGINE_CMD_FLAG_STRING},
296 {CAPI_CMD_SET_CSP_TYPE,
297 "csp_type",
298 "Set CSP type, (default RSA_PROV_FULL)",
299 ENGINE_CMD_FLAG_NUMERIC},
300 {CAPI_CMD_LIST_CONTAINERS,
301 "list_containers",
302 "list container names",
303 ENGINE_CMD_FLAG_NO_INPUT},
304 {CAPI_CMD_LIST_OPTIONS,
305 "list_options",
306 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
307 "32=private key info)",
308 ENGINE_CMD_FLAG_NUMERIC},
309 {CAPI_CMD_LOOKUP_METHOD,
310 "lookup_method",
311 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
312 ENGINE_CMD_FLAG_NUMERIC},
313 {CAPI_CMD_STORE_NAME,
314 "store_name",
315 "certificate store name, default \"MY\"",
316 ENGINE_CMD_FLAG_STRING},
317 {CAPI_CMD_STORE_FLAGS,
318 "store_flags",
319 "Certificate store flags: 1 = system store",
320 ENGINE_CMD_FLAG_NUMERIC},
321
322 {0, NULL, NULL, 0}
323};
7a18ecb2
DSH		 324
325static int capi_idx = -1;
326static int rsa_capi_idx = -1;
327static int dsa_capi_idx = -1;
7d537d4f 328static int cert_capi_idx = -1;
7a18ecb2 329
0f113f3e
MC		 330static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
331{
332 int ret = 1;
333 CAPI_CTX *ctx;
334 BIO *out;
335 if (capi_idx == -1) {
336 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
337 return 0;
338 }
339 ctx = ENGINE_get_ex_data(e, capi_idx);
340 out = BIO_new_fp(stdout, BIO_NOCLOSE);
341 if (out == NULL) {
342 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
343 return 0;
344 }
345 switch (cmd) {
346 case CAPI_CMD_LIST_CSPS:
347 ret = capi_list_providers(ctx, out);
348 break;
349
350 case CAPI_CMD_LIST_CERTS:
351 ret = capi_list_certs(ctx, out, NULL);
352 break;
353
354 case CAPI_CMD_LOOKUP_CERT:
355 ret = capi_list_certs(ctx, out, p);
356 break;
357
358 case CAPI_CMD_LIST_CONTAINERS:
359 ret = capi_list_containers(ctx, out);
360 break;
361
362 case CAPI_CMD_STORE_NAME:
b548a1f1 363 OPENSSL_free(ctx->storename);
0f113f3e
MC		 364 ctx->storename = BUF_strdup(p);
365 CAPI_trace(ctx, "Setting store name to %s\n", p);
366 break;
367
368 case CAPI_CMD_STORE_FLAGS:
369 if (i & 1) {
370 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
371 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
372 } else {
373 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
374 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
375 }
376 CAPI_trace(ctx, "Setting flags to %d\n", i);
377 break;
378
379 case CAPI_CMD_DEBUG_LEVEL:
380 ctx->debug_level = (int)i;
381 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
382 break;
383
384 case CAPI_CMD_DEBUG_FILE:
385 ctx->debug_file = BUF_strdup(p);
386 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
387 break;
388
389 case CAPI_CMD_KEYTYPE:
390 ctx->keytype = i;
391 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
392 break;
393
394 case CAPI_CMD_SET_CSP_IDX:
395 ret = capi_ctx_set_provname_idx(ctx, i);
396 break;
397
398 case CAPI_CMD_LIST_OPTIONS:
399 ctx->dump_flags = i;
400 break;
401
402 case CAPI_CMD_LOOKUP_METHOD:
403 if (i < 1 || i > 3) {
404 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
405 BIO_free(out);
406 return 0;
407 }
408 ctx->lookup_method = i;
409 break;
410
411 case CAPI_CMD_SET_CSP_NAME:
412 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
413 break;
414
415 case CAPI_CMD_SET_CSP_TYPE:
416 ctx->csptype = i;
417 break;
418
419 default:
420 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
421 ret = 0;
422 }
423
424 BIO_free(out);
425 return ret;
426
427}
428
429static RSA_METHOD capi_rsa_method = {
430 "CryptoAPI RSA method",
431 0, /* pub_enc */
432 0, /* pub_dec */
433 capi_rsa_priv_enc, /* priv_enc */
434 capi_rsa_priv_dec, /* priv_dec */
435 0, /* rsa_mod_exp */
436 0, /* bn_mod_exp */
437 0, /* init */
438 capi_rsa_free, /* finish */
439 RSA_FLAG_SIGN_VER, /* flags */
440 NULL, /* app_data */
441 capi_rsa_sign, /* rsa_sign */
442 0 /* rsa_verify */
443};
7a18ecb2 444
0f113f3e
MC		 445static DSA_METHOD capi_dsa_method = {
446 "CryptoAPI DSA method",
447 capi_dsa_do_sign, /* dsa_do_sign */
448 0, /* dsa_sign_setup */
449 0, /* dsa_do_verify */
450 0, /* dsa_mod_exp */
451 0, /* bn_mod_exp */
452 0, /* init */
453 capi_dsa_free, /* finish */
454 0, /* flags */
455 NULL, /* app_data */
456 0, /* dsa_paramgen */
457 0 /* dsa_keygen */
458};
7a18ecb2 459
0f113f3e
MC		 460static int capi_init(ENGINE *e)
461{
462 CAPI_CTX *ctx;
463 const RSA_METHOD *ossl_rsa_meth;
464 const DSA_METHOD *ossl_dsa_meth;
465
466 if (capi_idx < 0) {
467 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
468 if (capi_idx < 0)
469 goto memerr;
470
471 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
472
473 /* Setup RSA_METHOD */
474 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
475 ossl_rsa_meth = RSA_PKCS1_SSLeay();
476 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
477 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
478 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
479 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
480
481 /* Setup DSA Method */
482 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
483 ossl_dsa_meth = DSA_OpenSSL();
484 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
485 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
486 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
487 }
488
489 ctx = capi_ctx_new();
490 if (!ctx)
491 goto memerr;
492
493 ENGINE_set_ex_data(e, capi_idx, ctx);
494
495# ifdef OPENSSL_CAPIENG_DIALOG
496 {
497 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
498 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
499 if (cryptui)
500 ctx->certselectdlg =
501 (CERTDLG) GetProcAddress(cryptui,
502 "CryptUIDlgSelectCertificateFromStore");
503 if (kernel)
504 ctx->getconswindow =
505 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
506 if (cryptui && !OPENSSL_isservice())
507 ctx->client_cert_select = cert_select_dialog;
508 }
509# endif
510
511 return 1;
512
513 memerr:
514 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
515 return 0;
516
517 return 1;
518}
7a18ecb2
DSH		 519
520static int capi_destroy(ENGINE *e)
0f113f3e
MC		 521{
522 ERR_unload_CAPI_strings();
523 return 1;
524}
7a18ecb2
DSH		 525
526static int capi_finish(ENGINE *e)
0f113f3e
MC		 527{
528 CAPI_CTX *ctx;
529 ctx = ENGINE_get_ex_data(e, capi_idx);
530 capi_ctx_free(ctx);
531 ENGINE_set_ex_data(e, capi_idx, NULL);
532 return 1;
533}
534
535/*
536 * CryptoAPI key application data. This contains a handle to the private key
537 * container (for sign operations) and a handle to the key (for decrypt
538 * operations).
7a18ecb2
DSH		 539 */
540
0f113f3e
MC		 541struct CAPI_KEY_st {
542 /* Associated certificate context (if any) */
543 PCCERT_CONTEXT pcert;
544 HCRYPTPROV hprov;
545 HCRYPTKEY key;
546 DWORD keyspec;
547};
7a18ecb2
DSH		 548
549static int bind_capi(ENGINE *e)
0f113f3e
MC		 550{
551 if (!ENGINE_set_id(e, engine_capi_id)
552 || !ENGINE_set_name(e, engine_capi_name)
553 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
554 || !ENGINE_set_init_function(e, capi_init)
555 || !ENGINE_set_finish_function(e, capi_finish)
556 || !ENGINE_set_destroy_function(e, capi_destroy)
557 || !ENGINE_set_RSA(e, &capi_rsa_method)
558 || !ENGINE_set_DSA(e, &capi_dsa_method)
559 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
560 || !ENGINE_set_load_ssl_client_cert_function(e,
561 capi_load_ssl_client_cert)
562 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
563 || !ENGINE_set_ctrl_function(e, capi_ctrl))
564 return 0;
565 ERR_load_CAPI_strings();
566
567 return 1;
568
569}
570
571# ifndef OPENSSL_NO_DYNAMIC_ENGINE
7a18ecb2 572static int bind_helper(ENGINE *e, const char *id)
0f113f3e
MC		 573{
574 if (id && (strcmp(id, engine_capi_id) != 0))
575 return 0;
576 if (!bind_capi(e))
577 return 0;
578 return 1;
579}
580
7a18ecb2 581IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e
MC		 582 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
583# else
7a18ecb2 584static ENGINE *engine_capi(void)
0f113f3e
MC		 585{
586 ENGINE *ret = ENGINE_new();
587 if (!ret)
588 return NULL;
589 if (!bind_capi(ret)) {
590 ENGINE_free(ret);
591 return NULL;
592 }
593 return ret;
594}
7a18ecb2
DSH		 595
596void ENGINE_load_capi(void)
0f113f3e
MC		 597{
598 /* Copied from eng_[openssl|dyn].c */
599 ENGINE *toadd = engine_capi();
600 if (!toadd)
601 return;
602 ENGINE_add(toadd);
603 ENGINE_free(toadd);
604 ERR_clear_error();
605}
606# endif
7a18ecb2
DSH		 607
608static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
0f113f3e
MC		 609{
610 int i;
611 /*
612 * Reverse buffer in place: since this is a keyblob structure that will
613 * be freed up after conversion anyway it doesn't matter if we change
614 * it.
615 */
616 for (i = 0; i < binlen / 2; i++) {
617 unsigned char c;
618 c = bin[i];
619 bin[i] = bin[binlen - i - 1];
620 bin[binlen - i - 1] = c;
621 }
622
623 if (!BN_bin2bn(bin, binlen, bn))
624 return 0;
625 return 1;
626}
7a18ecb2 627
b3c8dd4e
DSH		 628/* Given a CAPI_KEY get an EVP_PKEY structure */
629
0f113f3e
MC		 630static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY * key)
631{
632 unsigned char *pubkey = NULL;
633 DWORD len;
634 BLOBHEADER *bh;
635 RSA *rkey = NULL;
636 DSA *dkey = NULL;
637 EVP_PKEY *ret = NULL;
638 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
639 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
640 capi_addlasterror();
641 return NULL;
642 }
643
644 pubkey = OPENSSL_malloc(len);
645
646 if (!pubkey)
647 goto memerr;
648
649 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
650 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
651 capi_addlasterror();
652 goto err;
653 }
654
655 bh = (BLOBHEADER *) pubkey;
656 if (bh->bType != PUBLICKEYBLOB) {
657 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
658 goto err;
659 }
660 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
661 RSAPUBKEY *rp;
662 DWORD rsa_modlen;
663 unsigned char *rsa_modulus;
664 rp = (RSAPUBKEY *) (bh + 1);
665 if (rp->magic != 0x31415352) {
666 char magstr[10];
667 BIO_snprintf(magstr, 10, "%lx", rp->magic);
668 CAPIerr(CAPI_F_CAPI_GET_PKEY,
669 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
670 ERR_add_error_data(2, "magic=0x", magstr);
671 goto err;
672 }
673 rsa_modulus = (unsigned char *)(rp + 1);
674 rkey = RSA_new_method(eng);
675 if (!rkey)
676 goto memerr;
677
678 rkey->e = BN_new();
679 rkey->n = BN_new();
680
681 if (!rkey->e || !rkey->n)
682 goto memerr;
683
684 if (!BN_set_word(rkey->e, rp->pubexp))
685 goto memerr;
686
687 rsa_modlen = rp->bitlen / 8;
688 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
689 goto memerr;
690
691 RSA_set_ex_data(rkey, rsa_capi_idx, key);
692
75ebbd9a 693 if ((ret = EVP_PKEY_new()) == NULL)
0f113f3e
MC		 694 goto memerr;
695
696 EVP_PKEY_assign_RSA(ret, rkey);
697 rkey = NULL;
698
699 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
700 DSSPUBKEY *dp;
701 DWORD dsa_plen;
702 unsigned char *btmp;
703 dp = (DSSPUBKEY *) (bh + 1);
704 if (dp->magic != 0x31535344) {
705 char magstr[10];
706 BIO_snprintf(magstr, 10, "%lx", dp->magic);
707 CAPIerr(CAPI_F_CAPI_GET_PKEY,
708 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
709 ERR_add_error_data(2, "magic=0x", magstr);
710 goto err;
711 }
712 dsa_plen = dp->bitlen / 8;
713 btmp = (unsigned char *)(dp + 1);
714 dkey = DSA_new_method(eng);
715 if (!dkey)
716 goto memerr;
717 dkey->p = BN_new();
718 dkey->q = BN_new();
719 dkey->g = BN_new();
720 dkey->pub_key = BN_new();
721 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
722 goto memerr;
723 if (!lend_tobn(dkey->p, btmp, dsa_plen))
724 goto memerr;
725 btmp += dsa_plen;
726 if (!lend_tobn(dkey->q, btmp, 20))
727 goto memerr;
728 btmp += 20;
729 if (!lend_tobn(dkey->g, btmp, dsa_plen))
730 goto memerr;
731 btmp += dsa_plen;
732 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
733 goto memerr;
734 btmp += dsa_plen;
735
736 DSA_set_ex_data(dkey, dsa_capi_idx, key);
737
75ebbd9a 738 if ((ret = EVP_PKEY_new()) == NULL)
0f113f3e
MC		 739 goto memerr;
740
741 EVP_PKEY_assign_DSA(ret, dkey);
742 dkey = NULL;
743 } else {
744 char algstr[10];
745 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
746 CAPIerr(CAPI_F_CAPI_GET_PKEY,
747 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
748 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
749 goto err;
750 }
751
752 err:
b548a1f1 753 OPENSSL_free(pubkey);
0f113f3e 754 if (!ret) {
d6407083
RS		 755 RSA_free(rkey);
756 DSA_free(dkey);
0f113f3e
MC		 757 }
758
759 return ret;
760
761 memerr:
762 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
763 goto err;
764
765}
7a18ecb2 766
b3c8dd4e 767static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
0f113f3e
MC		 768 UI_METHOD *ui_method, void *callback_data)
769{
770 CAPI_CTX *ctx;
771 CAPI_KEY *key;
772 EVP_PKEY *ret;
773 ctx = ENGINE_get_ex_data(eng, capi_idx);
b3c8dd4e 774
0f113f3e
MC		 775 if (!ctx) {
776 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
777 return NULL;
778 }
b3c8dd4e 779
0f113f3e 780 key = capi_find_key(ctx, key_id);
b3c8dd4e 781
0f113f3e
MC		 782 if (!key)
783 return NULL;
b3c8dd4e 784
0f113f3e 785 ret = capi_get_pkey(eng, key);
b3c8dd4e 786
0f113f3e
MC		 787 if (!ret)
788 capi_free_key(key);
789 return ret;
b3c8dd4e 790
0f113f3e 791}
b3c8dd4e 792
7a18ecb2
DSH		 793/* CryptoAPI RSA operations */
794
795int capi_rsa_priv_enc(int flen, const unsigned char *from,
0f113f3e
MC		 796 unsigned char *to, RSA *rsa, int padding)
797{
798 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
799 return -1;
800}
7a18ecb2
DSH		 801
802int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
0f113f3e
MC		 803 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
804{
805 ALG_ID alg;
806 HCRYPTHASH hash;
807 DWORD slen;
808 unsigned int i;
809 int ret = -1;
810 CAPI_KEY *capi_key;
811 CAPI_CTX *ctx;
812
813 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
814
815 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
816
817 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
818 if (!capi_key) {
819 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
820 return -1;
821 }
7a18ecb2 822/* Convert the signature type to a CryptoAPI algorithm ID */
0f113f3e
MC		 823 switch (dtype) {
824 case NID_sha256:
825 alg = CALG_SHA_256;
826 break;
827
828 case NID_sha384:
829 alg = CALG_SHA_384;
830 break;
831
832 case NID_sha512:
833 alg = CALG_SHA_512;
834 break;
835
836 case NID_sha1:
837 alg = CALG_SHA1;
838 break;
839
840 case NID_md5:
841 alg = CALG_MD5;
842 break;
843
844 case NID_md5_sha1:
845 alg = CALG_SSL3_SHAMD5;
846 break;
847 default:
848 {
849 char algstr[10];
850 BIO_snprintf(algstr, 10, "%lx", dtype);
851 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
852 ERR_add_error_data(2, "NID=0x", algstr);
853 return -1;
854 }
855 }
7a18ecb2
DSH		 856
857/* Create the hash object */
0f113f3e
MC		 858 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
859 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
860 capi_addlasterror();
861 return -1;
862 }
7a18ecb2
DSH		 863/* Set the hash value to the value passed */
864
0f113f3e
MC		 865 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
866 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
867 capi_addlasterror();
868 goto err;
869 }
7a18ecb2
DSH		 870
871/* Finally sign it */
0f113f3e
MC		 872 slen = RSA_size(rsa);
873 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
874 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
875 capi_addlasterror();
876 goto err;
877 } else {
878 ret = 1;
879 /* Inplace byte reversal of signature */
880 for (i = 0; i < slen / 2; i++) {
881 unsigned char c;
882 c = sigret[i];
883 sigret[i] = sigret[slen - i - 1];
884 sigret[slen - i - 1] = c;
885 }
886 *siglen = slen;
887 }
888
889 /* Now cleanup */
890
891 err:
892 CryptDestroyHash(hash);
893
894 return ret;
895}
7a18ecb2
DSH		 896
897int capi_rsa_priv_dec(int flen, const unsigned char *from,
0f113f3e
MC		 898 unsigned char *to, RSA *rsa, int padding)
899{
900 int i;
901 unsigned char *tmpbuf;
902 CAPI_KEY *capi_key;
903 CAPI_CTX *ctx;
904 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
905
906 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
907
908 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
909 if (!capi_key) {
910 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
911 return -1;
912 }
913
914 if (padding != RSA_PKCS1_PADDING) {
915 char errstr[10];
916 BIO_snprintf(errstr, 10, "%d", padding);
917 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
918 ERR_add_error_data(2, "padding=", errstr);
919 return -1;
920 }
921
922 /* Create temp reverse order version of input */
75ebbd9a 923 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) {
0f113f3e
MC		 924 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
925 return -1;
926 }
927 for (i = 0; i < flen; i++)
928 tmpbuf[flen - i - 1] = from[i];
929
930 /* Finally decrypt it */
931 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen)) {
932 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
933 capi_addlasterror();
934 OPENSSL_free(tmpbuf);
935 return -1;
936 } else
937 memcpy(to, tmpbuf, flen);
938
939 OPENSSL_free(tmpbuf);
940
941 return flen;
942}
7a18ecb2
DSH		 943
944static int capi_rsa_free(RSA *rsa)
0f113f3e
MC		 945{
946 CAPI_KEY *capi_key;
947 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
948 capi_free_key(capi_key);
949 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
950 return 1;
951}
7a18ecb2
DSH		 952
953/* CryptoAPI DSA operations */
954
955static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
0f113f3e
MC		 956 DSA *dsa)
957{
958 HCRYPTHASH hash;
959 DWORD slen;
960 DSA_SIG *ret = NULL;
961 CAPI_KEY *capi_key;
962 CAPI_CTX *ctx;
963 unsigned char csigbuf[40];
964
965 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
966
967 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
968
969 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
970
971 if (!capi_key) {
972 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
973 return NULL;
974 }
975
976 if (dlen != 20) {
977 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
978 return NULL;
979 }
980
981 /* Create the hash object */
982 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
983 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
984 capi_addlasterror();
985 return NULL;
986 }
987
988 /* Set the hash value to the value passed */
989 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
990 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
991 capi_addlasterror();
992 goto err;
993 }
994
995 /* Finally sign it */
996 slen = sizeof(csigbuf);
997 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
998 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
999 capi_addlasterror();
1000 goto err;
1001 } else {
1002 ret = DSA_SIG_new();
1003 if (!ret)
1004 goto err;
1005 ret->r = BN_new();
1006 ret->s = BN_new();
1007 if (!ret->r || !ret->s)
1008 goto err;
1009 if (!lend_tobn(ret->r, csigbuf, 20)
1010 || !lend_tobn(ret->s, csigbuf + 20, 20)) {
1011 DSA_SIG_free(ret);
1012 ret = NULL;
1013 goto err;
1014 }
1015 }
1016
1017 /* Now cleanup */
1018
1019 err:
1020 OPENSSL_cleanse(csigbuf, 40);
1021 CryptDestroyHash(hash);
1022 return ret;
1023}
7a18ecb2
DSH		 1024
1025static int capi_dsa_free(DSA *dsa)
0f113f3e
MC		 1026{
1027 CAPI_KEY *capi_key;
1028 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1029 capi_free_key(capi_key);
1030 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1031 return 1;
1032}
1033
1034static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
1035 va_list argptr)
1036{
1037 BIO *out;
1038
1039 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1040 return;
1041 out = BIO_new_file(ctx->debug_file, "a+");
1042 if (out == NULL) {
1043 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1044 return;
1045 }
1046 BIO_vprintf(out, format, argptr);
1047 BIO_free(out);
1048}
1049
1050static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
1051{
1052 va_list args;
1053 va_start(args, format);
1054 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1055 va_end(args);
1056}
7a18ecb2
DSH		 1057
1058static void capi_addlasterror(void)
0f113f3e
MC		 1059{
1060 capi_adderror(GetLastError());
1061}
7a18ecb2
DSH		 1062
1063static void capi_adderror(DWORD err)
0f113f3e
MC		 1064{
1065 char errstr[10];
1066 BIO_snprintf(errstr, 10, "%lX", err);
1067 ERR_add_error_data(2, "Error code= 0x", errstr);
1068}
7a18ecb2 1069
cc4c2306 1070static char *wide_to_asc(LPCWSTR wstr)
0f113f3e
MC		 1071{
1072 char *str;
1073 int len_0, sz;
1074
1075 if (!wstr)
1076 return NULL;
1077 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1078 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1079 if (!sz) {
1080 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1081 return NULL;
1082 }
1083 str = OPENSSL_malloc(sz);
1084 if (!str) {
1085 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1086 return NULL;
1087 }
1088 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1089 OPENSSL_free(str);
1090 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1091 return NULL;
1092 }
1093 return str;
1094}
1095
1096static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1097 DWORD idx)
1098{
1099 DWORD len, err;
1100 LPTSTR name;
1101 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1102 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1103 err = GetLastError();
1104 if (err == ERROR_NO_MORE_ITEMS)
1105 return 2;
1106 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1107 capi_adderror(err);
1108 return 0;
1109 }
1110 name = OPENSSL_malloc(len);
1111 if (name == NULL) {
1112 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1113 return 0;
1114 }
1115 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1116 err = GetLastError();
1117 OPENSSL_free(name);
1118 if (err == ERROR_NO_MORE_ITEMS)
1119 return 2;
1120 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1121 capi_adderror(err);
1122 return 0;
1123 }
1124 if (sizeof(TCHAR) != sizeof(char)) {
1125 *pname = wide_to_asc((WCHAR *)name);
1126 OPENSSL_free(name);
1127 if (*pname == NULL)
1128 return 0;
1129 } else
1130 *pname = (char *)name;
1131 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1132 *ptype);
1133
1134 return 1;
1135}
1136
1137static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1138{
1139 DWORD idx, ptype;
1140 int ret;
1141 LPSTR provname = NULL;
1142 CAPI_trace(ctx, "capi_list_providers\n");
1143 BIO_printf(out, "Available CSPs:\n");
1144 for (idx = 0;; idx++) {
1145 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1146 if (ret == 2)
1147 break;
1148 if (ret == 0)
1149 break;
1150 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1151 OPENSSL_free(provname);
1152 }
1153 return 1;
1154}
1155
1156static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1157{
1158 int ret = 1;
1159 HCRYPTPROV hprov;
1160 DWORD err, idx, flags, buflen = 0, clen;
1161 LPSTR cname;
1162 LPTSTR cspname = NULL;
1163
1164 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1165 ctx->csptype);
1166 if (ctx->cspname && sizeof(TCHAR) != sizeof(char)) {
1167 if ((clen =
1168 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))) {
1169 cspname = alloca(clen * sizeof(WCHAR));
1170 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1171 clen);
1172 }
1173 if (!cspname) {
1174 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1175 capi_addlasterror();
1176 return 0;
1177 }
1178 } else
1179 cspname = (TCHAR *)ctx->cspname;
1180 if (!CryptAcquireContext
1181 (&hprov, NULL, cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1182 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1183 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1184 capi_addlasterror();
1185 return 0;
1186 }
1187 if (!CryptGetProvParam
1188 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1189 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1190 capi_addlasterror();
1191 CryptReleaseContext(hprov, 0);
1192 return 0;
1193 }
1194 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1195 if (buflen == 0)
1196 buflen = 1024;
1197 cname = OPENSSL_malloc(buflen);
1198 if (!cname) {
1199 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1200 goto err;
1201 }
1202
1203 for (idx = 0;; idx++) {
1204 clen = buflen;
1205 cname[0] = 0;
1206
1207 if (idx == 0)
1208 flags = CRYPT_FIRST;
1209 else
1210 flags = 0;
1211 if (!CryptGetProvParam
1212 (hprov, PP_ENUMCONTAINERS, (BYTE *) cname, &clen, flags)) {
1213 err = GetLastError();
1214 if (err == ERROR_NO_MORE_ITEMS)
1215 goto done;
1216 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1217 capi_adderror(err);
1218 goto err;
1219 }
1220 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1221 cname, clen, idx, flags);
1222 if (!cname[0] && (clen == buflen)) {
1223 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1224 goto done;
1225 }
1226 BIO_printf(out, "%d. %s\n", idx, cname);
1227 }
1228 err:
1229
1230 ret = 0;
1231
1232 done:
b548a1f1 1233 OPENSSL_free(cname);
0f113f3e
MC		 1234 CryptReleaseContext(hprov, 0);
1235
1236 return ret;
1237}
1238
1239CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1240{
1241 DWORD len;
1242 CRYPT_KEY_PROV_INFO *pinfo;
1243
1244 if (!CertGetCertificateContextProperty
1245 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1246 return NULL;
1247 pinfo = OPENSSL_malloc(len);
1248 if (!pinfo) {
1249 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1250 return NULL;
1251 }
1252 if (!CertGetCertificateContextProperty
1253 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1254 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1255 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1256 capi_addlasterror();
1257 OPENSSL_free(pinfo);
1258 return NULL;
1259 }
1260 return pinfo;
1261}
1262
1263static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1264 CRYPT_KEY_PROV_INFO * pinfo)
1265{
1266 char *provname = NULL, *contname = NULL;
1267 if (!pinfo) {
1268 BIO_printf(out, " No Private Key\n");
1269 return;
1270 }
1271 provname = wide_to_asc(pinfo->pwszProvName);
1272 contname = wide_to_asc(pinfo->pwszContainerName);
1273 if (!provname || !contname)
1274 goto err;
1275
1276 BIO_printf(out, " Private Key Info:\n");
1277 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname,
1278 pinfo->dwProvType);
1279 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname,
1280 pinfo->dwKeySpec);
1281 err:
b548a1f1
RS		 1282 OPENSSL_free(provname);
1283 OPENSSL_free(contname);
0f113f3e
MC		 1284}
1285
1286char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1287{
1288 LPWSTR wfname;
1289 DWORD dlen;
1290
1291 CAPI_trace(ctx, "capi_cert_get_fname\n");
1292 if (!CertGetCertificateContextProperty
1293 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1294 return NULL;
1295 wfname = OPENSSL_malloc(dlen);
1296 if (wfname == NULL)
1297 return NULL;
1298 if (CertGetCertificateContextProperty
1299 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1300 char *fname = wide_to_asc(wfname);
1301 OPENSSL_free(wfname);
1302 return fname;
1303 }
1304 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1305 capi_addlasterror();
1306
1307 OPENSSL_free(wfname);
1308 return NULL;
1309}
1310
1311void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
1312{
1313 X509 *x;
1314 unsigned char *p;
1315 unsigned long flags = ctx->dump_flags;
1316 if (flags & CAPI_DMP_FNAME) {
1317 char *fname;
1318 fname = capi_cert_get_fname(ctx, cert);
1319 if (fname) {
1320 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1321 OPENSSL_free(fname);
1322 } else
1323 BIO_printf(out, " <No Friendly Name>\n");
1324 }
1325
1326 p = cert->pbCertEncoded;
1327 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1328 if (!x)
1329 BIO_printf(out, " <Can't parse certificate>\n");
1330 if (flags & CAPI_DMP_SUMMARY) {
1331 BIO_printf(out, " Subject: ");
1332 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1333 BIO_printf(out, "\n Issuer: ");
1334 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1335 BIO_printf(out, "\n");
1336 }
1337 if (flags & CAPI_DMP_FULL)
1338 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1339
1340 if (flags & CAPI_DMP_PKEYINFO) {
1341 CRYPT_KEY_PROV_INFO *pinfo;
1342 pinfo = capi_get_prov_info(ctx, cert);
1343 capi_dump_prov_info(ctx, out, pinfo);
b548a1f1 1344 OPENSSL_free(pinfo);
0f113f3e
MC		 1345 }
1346
1347 if (flags & CAPI_DMP_PEM)
1348 PEM_write_bio_X509(out, x);
1349 X509_free(x);
1350}
1351
1352HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
1353{
1354 HCERTSTORE hstore;
1355
1356 if (!storename)
1357 storename = ctx->storename;
1358 if (!storename)
1359 storename = "MY";
1360 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1361
1362 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1363 ctx->store_flags, storename);
1364 if (!hstore) {
1365 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1366 capi_addlasterror();
1367 }
1368 return hstore;
1369}
1370
1371int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1372{
1373 char *storename;
1374 int idx;
1375 int ret = 1;
1376 HCERTSTORE hstore;
1377 PCCERT_CONTEXT cert = NULL;
1378
1379 storename = ctx->storename;
1380 if (!storename)
1381 storename = "MY";
1382 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1383
1384 hstore = capi_open_store(ctx, storename);
1385 if (!hstore)
1386 return 0;
1387 if (id) {
1388 cert = capi_find_cert(ctx, id, hstore);
1389 if (!cert) {
1390 ret = 0;
1391 goto err;
1392 }
1393 capi_dump_cert(ctx, out, cert);
1394 CertFreeCertificateContext(cert);
1395 } else {
1396 for (idx = 0;; idx++) {
1397 cert = CertEnumCertificatesInStore(hstore, cert);
1398 if (!cert)
1399 break;
1400 BIO_printf(out, "Certificate %d\n", idx);
1401 capi_dump_cert(ctx, out, cert);
1402 }
1403 }
1404 err:
1405 CertCloseStore(hstore, 0);
1406 return ret;
1407}
1408
1409static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1410 HCERTSTORE hstore)
1411{
1412 PCCERT_CONTEXT cert = NULL;
1413 char *fname = NULL;
1414 int match;
1415 switch (ctx->lookup_method) {
1416 case CAPI_LU_SUBSTR:
1417 return CertFindCertificateInStore(hstore,
1418 X509_ASN_ENCODING, 0,
1419 CERT_FIND_SUBJECT_STR_A, id, NULL);
1420 case CAPI_LU_FNAME:
1421 for (;;) {
1422 cert = CertEnumCertificatesInStore(hstore, cert);
1423 if (!cert)
1424 return NULL;
1425 fname = capi_cert_get_fname(ctx, cert);
1426 if (fname) {
1427 if (strcmp(fname, id))
1428 match = 0;
1429 else
1430 match = 1;
1431 OPENSSL_free(fname);
1432 if (match)
1433 return cert;
1434 }
1435 }
1436 default:
1437 return NULL;
1438 }
1439}
1440
1441static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const TCHAR *contname,
1442 TCHAR *provname, DWORD ptype, DWORD keyspec)
1443{
0f113f3e 1444 DWORD dwFlags = 0;
b4faea50
RS		 1445 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1446
0f113f3e
MC		 1447 if (key == NULL)
1448 return NULL;
1449 if (sizeof(TCHAR) == sizeof(char))
1450 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1451 contname, provname, ptype);
1452 else if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1453 /* above 'if' is optimization to minimize malloc-ations */
1454 char *_contname = wide_to_asc((WCHAR *)contname);
1455 char *_provname = wide_to_asc((WCHAR *)provname);
1456
1457 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1458 _contname, _provname, ptype);
b548a1f1
RS		 1459 OPENSSL_free(_provname);
1460 OPENSSL_free(_contname);
0f113f3e
MC		 1461 }
1462 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1463 dwFlags = CRYPT_MACHINE_KEYSET;
1464 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, dwFlags)) {
1465 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1466 capi_addlasterror();
1467 goto err;
1468 }
1469 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1470 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1471 capi_addlasterror();
1472 CryptReleaseContext(key->hprov, 0);
1473 goto err;
1474 }
1475 key->keyspec = keyspec;
1476 key->pcert = NULL;
1477 return key;
1478
1479 err:
1480 OPENSSL_free(key);
1481 return NULL;
1482}
1483
1484static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1485{
1486 CAPI_KEY *key = NULL;
1487 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1488 char *provname = NULL, *contname = NULL;
1489 pinfo = capi_get_prov_info(ctx, cert);
1490 if (!pinfo)
1491 goto err;
1492 if (sizeof(TCHAR) != sizeof(char))
1493 key = capi_get_key(ctx, (TCHAR *)pinfo->pwszContainerName,
1494 (TCHAR *)pinfo->pwszProvName,
1495 pinfo->dwProvType, pinfo->dwKeySpec);
1496 else {
1497 provname = wide_to_asc(pinfo->pwszProvName);
1498 contname = wide_to_asc(pinfo->pwszContainerName);
1499 if (!provname || !contname)
1500 goto err;
1501 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1502 pinfo->dwProvType, pinfo->dwKeySpec);
1503 }
1504
1505 err:
b548a1f1
RS		 1506 OPENSSL_free(pinfo);
1507 OPENSSL_free(provname);
1508 OPENSSL_free(contname);
0f113f3e
MC		 1509 return key;
1510}
1511
1512CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1513{
1514 PCCERT_CONTEXT cert;
1515 HCERTSTORE hstore;
1516 CAPI_KEY *key = NULL;
1517 switch (ctx->lookup_method) {
1518 case CAPI_LU_SUBSTR:
1519 case CAPI_LU_FNAME:
1520 hstore = capi_open_store(ctx, NULL);
1521 if (!hstore)
1522 return NULL;
1523 cert = capi_find_cert(ctx, id, hstore);
1524 if (cert) {
1525 key = capi_get_cert_key(ctx, cert);
1526 CertFreeCertificateContext(cert);
1527 }
1528 CertCloseStore(hstore, 0);
1529 break;
1530
1531 case CAPI_LU_CONTNAME:
1532 if (sizeof(TCHAR) != sizeof(char)) {
1533 WCHAR *contname, *provname;
1534 DWORD len;
1535
1536 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1537 (contname = alloca(len * sizeof(WCHAR)),
1538 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1539 (len =
1540 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))
1541 && (provname =
1542 alloca(len * sizeof(WCHAR)), MultiByteToWideChar(CP_ACP,
1543 0,
1544 ctx->cspname,
1545 -1,
1546 provname,
1547 len)))
1548 key =
1549 capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1550 ctx->csptype, ctx->keytype);
1551 } else
1552 key = capi_get_key(ctx, (TCHAR *)id,
1553 (TCHAR *)ctx->cspname,
1554 ctx->csptype, ctx->keytype);
1555 break;
1556 }
1557
1558 return key;
1559}
1560
1561void capi_free_key(CAPI_KEY * key)
1562{
1563 if (!key)
1564 return;
1565 CryptDestroyKey(key->key);
1566 CryptReleaseContext(key->hprov, 0);
1567 if (key->pcert)
1568 CertFreeCertificateContext(key->pcert);
1569 OPENSSL_free(key);
1570}
7a18ecb2
DSH		 1571
1572/* Initialize a CAPI_CTX structure */
1573
1574static CAPI_CTX *capi_ctx_new()
0f113f3e 1575{
64b25758 1576 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
b4faea50 1577
0f113f3e
MC		 1578 if (!ctx) {
1579 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1580 return NULL;
1581 }
0f113f3e
MC		 1582 ctx->csptype = PROV_RSA_FULL;
1583 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1584 ctx->keytype = AT_KEYEXCHANGE;
0f113f3e
MC		 1585 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1586 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1587 ctx->lookup_method = CAPI_LU_SUBSTR;
0f113f3e
MC		 1588 ctx->client_cert_select = cert_select_simple;
1589 return ctx;
1590}
1591
1592static void capi_ctx_free(CAPI_CTX * ctx)
1593{
1594 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1595 if (!ctx)
1596 return;
b548a1f1
RS		 1597 OPENSSL_free(ctx->cspname);
1598 OPENSSL_free(ctx->debug_file);
1599 OPENSSL_free(ctx->storename);
1600 OPENSSL_free(ctx->ssl_client_store);
0f113f3e
MC		 1601 OPENSSL_free(ctx);
1602}
1603
1604static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1605 int check)
1606{
1607 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1608 if (check) {
1609 HCRYPTPROV hprov;
1610 LPTSTR name = NULL;
1611
1612 if (sizeof(TCHAR) != sizeof(char)) {
1613 DWORD len;
1614 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1615 name = alloca(len * sizeof(WCHAR));
1616 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1617 }
1618 } else
1619 name = (TCHAR *)pname;
1620
1621 if (!name || !CryptAcquireContext(&hprov, NULL, name, type,
1622 CRYPT_VERIFYCONTEXT)) {
1623 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1624 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1625 capi_addlasterror();
1626 return 0;
1627 }
1628 CryptReleaseContext(hprov, 0);
1629 }
b548a1f1 1630 OPENSSL_free(ctx->cspname);
0f113f3e
MC		 1631 ctx->cspname = BUF_strdup(pname);
1632 ctx->csptype = type;
1633 return 1;
1634}
1635
1636static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1637{
1638 LPSTR pname;
1639 DWORD type;
1640 int res;
1641 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1642 return 0;
1643 res = capi_ctx_set_provname(ctx, pname, type, 0);
1644 OPENSSL_free(pname);
1645 return res;
1646}
7a18ecb2 1647
b3c8dd4e 1648static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
0f113f3e
MC		 1649{
1650 int i;
1651 X509_NAME *nm;
1652 /* Special case: empty list: match anything */
1653 if (sk_X509_NAME_num(ca_dn) <= 0)
1654 return 1;
1655 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1656 nm = sk_X509_NAME_value(ca_dn, i);
1657 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1658 return 1;
1659 }
1660 return 0;
1661}
7d537d4f 1662
b3c8dd4e 1663static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
0f113f3e
MC		 1664 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1665 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1666 UI_METHOD *ui_method,
1667 void *callback_data)
1668{
1669 STACK_OF(X509) *certs = NULL;
1670 X509 *x;
1671 char *storename;
1672 const char *p;
1673 int i, client_cert_idx;
1674 HCERTSTORE hstore;
1675 PCCERT_CONTEXT cert = NULL, excert = NULL;
1676 CAPI_CTX *ctx;
1677 CAPI_KEY *key;
1678 ctx = ENGINE_get_ex_data(e, capi_idx);
1679
1680 *pcert = NULL;
1681 *pkey = NULL;
1682
1683 storename = ctx->ssl_client_store;
1684 if (!storename)
1685 storename = "MY";
1686
1687 hstore = capi_open_store(ctx, storename);
1688 if (!hstore)
1689 return 0;
1690 /* Enumerate all certificates collect any matches */
1691 for (i = 0;; i++) {
1692 cert = CertEnumCertificatesInStore(hstore, cert);
1693 if (!cert)
1694 break;
1695 p = cert->pbCertEncoded;
1696 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1697 if (!x) {
1698 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1699 continue;
1700 }
1701 if (cert_issuer_match(ca_dn, x)
1702 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1703 key = capi_get_cert_key(ctx, cert);
1704 if (!key) {
1705 X509_free(x);
1706 continue;
1707 }
1708 /*
1709 * Match found: attach extra data to it so we can retrieve the
1710 * key later.
1711 */
1712 excert = CertDuplicateCertificateContext(cert);
1713 key->pcert = excert;
1714 X509_set_ex_data(x, cert_capi_idx, key);
1715
1716 if (!certs)
1717 certs = sk_X509_new_null();
1718
1719 sk_X509_push(certs, x);
1720 } else
1721 X509_free(x);
1722
1723 }
1724
1725 if (cert)
1726 CertFreeCertificateContext(cert);
1727 if (hstore)
1728 CertCloseStore(hstore, 0);
1729
1730 if (!certs)
1731 return 0;
1732
1733 /* Select the appropriate certificate */
1734
1735 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1736
1737 /* Set the selected certificate and free the rest */
1738
1739 for (i = 0; i < sk_X509_num(certs); i++) {
1740 x = sk_X509_value(certs, i);
1741 if (i == client_cert_idx)
1742 *pcert = x;
1743 else {
1744 key = X509_get_ex_data(x, cert_capi_idx);
1745 capi_free_key(key);
1746 X509_free(x);
1747 }
1748 }
1749
1750 sk_X509_free(certs);
1751
1752 if (!*pcert)
1753 return 0;
1754
1755 /* Setup key for selected certificate */
1756
1757 key = X509_get_ex_data(*pcert, cert_capi_idx);
1758 *pkey = capi_get_pkey(e, key);
1759 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1760
1761 return 1;
1762
1763}
e0f7b872
DSH		 1764
1765/* Simple client cert selection function: always select first */
1766
1cd504e7 1767static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1768{
1769 return 0;
1770}
e0f7b872 1771
0f113f3e 1772# ifdef OPENSSL_CAPIENG_DIALOG
e0f7b872 1773
0f113f3e
MC		 1774/*
1775 * More complex cert selection function, using standard function
e0f7b872
DSH		 1776 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1777 */
1778
0f113f3e
MC		 1779/*
1780 * Definitions which are in cryptuiapi.h but this is not present in older
a0f3679b
DSH		 1781 * versions of headers.
1782 */
1783
0f113f3e
MC		 1784# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1785# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1786# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1787# endif
e0f7b872 1788
0f113f3e
MC		 1789# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1790# define dlg_prompt L"Select a certificate to use for authentication"
1791# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1792 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1381bf90 1793
1cd504e7 1794static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1795{
1796 X509 *x;
1797 HCERTSTORE dstore;
1798 PCCERT_CONTEXT cert;
1799 CAPI_CTX *ctx;
1800 CAPI_KEY *key;
1801 HWND hwnd;
1802 int i, idx = -1;
1803 if (sk_X509_num(certs) == 1)
1804 return 0;
1805 ctx = ENGINE_get_ex_data(e, capi_idx);
1806 /* Create an in memory store of certificates */
1807 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1808 CERT_STORE_CREATE_NEW_FLAG, NULL);
1809 if (!dstore) {
1810 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1811 capi_addlasterror();
1812 goto err;
1813 }
1814 /* Add all certificates to store */
1815 for (i = 0; i < sk_X509_num(certs); i++) {
1816 x = sk_X509_value(certs, i);
1817 key = X509_get_ex_data(x, cert_capi_idx);
1818
1819 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1820 CERT_STORE_ADD_NEW, NULL)) {
1821 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1822 capi_addlasterror();
1823 goto err;
1824 }
1825
1826 }
1827 hwnd = GetForegroundWindow();
1828 if (!hwnd)
1829 hwnd = GetActiveWindow();
1830 if (!hwnd && ctx->getconswindow)
1831 hwnd = ctx->getconswindow();
1832 /* Call dialog to select one */
1833 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1834 dlg_columns, 0, NULL);
1835
1836 /* Find matching cert from list */
1837 if (cert) {
1838 for (i = 0; i < sk_X509_num(certs); i++) {
1839 x = sk_X509_value(certs, i);
1840 key = X509_get_ex_data(x, cert_capi_idx);
1841 if (CertCompareCertificate
1842 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1843 key->pcert->pCertInfo)) {
1844 idx = i;
1845 break;
1846 }
1847 }
1848 }
1849
1850 err:
1851 if (dstore)
1852 CertCloseStore(dstore, 0);
1853 return idx;
1854
1855}
1856# endif
1857
1858#else /* !__COMPILE_CAPIENG */
1859# include <openssl/engine.h>
1860# ifndef OPENSSL_NO_DYNAMIC_ENGINE
492279f6 1861OPENSSL_EXPORT
0f113f3e 1862 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
eb164d0b 1863OPENSSL_EXPORT
0f113f3e
MC		 1864 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1865{
1866 return 0;
1867}
1868
492279f6 1869IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e
MC		 1870# else
1871void ENGINE_load_capi(void)
1872{
1873}
1874# endif
7a18ecb2 1875#endif
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