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Fix some typo's, silence warnings.
[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 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:
363 if (ctx->storename)
364 OPENSSL_free(ctx->storename);
365 ctx->storename = BUF_strdup(p);
366 CAPI_trace(ctx, "Setting store name to %s\n", p);
367 break;
368
369 case CAPI_CMD_STORE_FLAGS:
370 if (i & 1) {
371 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
372 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
373 } else {
374 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
375 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
376 }
377 CAPI_trace(ctx, "Setting flags to %d\n", i);
378 break;
379
380 case CAPI_CMD_DEBUG_LEVEL:
381 ctx->debug_level = (int)i;
382 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
383 break;
384
385 case CAPI_CMD_DEBUG_FILE:
386 ctx->debug_file = BUF_strdup(p);
387 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
388 break;
389
390 case CAPI_CMD_KEYTYPE:
391 ctx->keytype = i;
392 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
393 break;
394
395 case CAPI_CMD_SET_CSP_IDX:
396 ret = capi_ctx_set_provname_idx(ctx, i);
397 break;
398
399 case CAPI_CMD_LIST_OPTIONS:
400 ctx->dump_flags = i;
401 break;
402
403 case CAPI_CMD_LOOKUP_METHOD:
404 if (i < 1 || i > 3) {
405 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
406 BIO_free(out);
407 return 0;
408 }
409 ctx->lookup_method = i;
410 break;
411
412 case CAPI_CMD_SET_CSP_NAME:
413 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
414 break;
415
416 case CAPI_CMD_SET_CSP_TYPE:
417 ctx->csptype = i;
418 break;
419
420 default:
421 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
422 ret = 0;
423 }
424
425 BIO_free(out);
426 return ret;
427
428}
429
430static RSA_METHOD capi_rsa_method = {
431 "CryptoAPI RSA method",
432 0, /* pub_enc */
433 0, /* pub_dec */
434 capi_rsa_priv_enc, /* priv_enc */
435 capi_rsa_priv_dec, /* priv_dec */
436 0, /* rsa_mod_exp */
437 0, /* bn_mod_exp */
438 0, /* init */
439 capi_rsa_free, /* finish */
440 RSA_FLAG_SIGN_VER, /* flags */
441 NULL, /* app_data */
442 capi_rsa_sign, /* rsa_sign */
443 0 /* rsa_verify */
444};
7a18ecb2 445
0f113f3e
MC		 446static DSA_METHOD capi_dsa_method = {
447 "CryptoAPI DSA method",
448 capi_dsa_do_sign, /* dsa_do_sign */
449 0, /* dsa_sign_setup */
450 0, /* dsa_do_verify */
451 0, /* dsa_mod_exp */
452 0, /* bn_mod_exp */
453 0, /* init */
454 capi_dsa_free, /* finish */
455 0, /* flags */
456 NULL, /* app_data */
457 0, /* dsa_paramgen */
458 0 /* dsa_keygen */
459};
7a18ecb2 460
0f113f3e
MC		 461static int capi_init(ENGINE *e)
462{
463 CAPI_CTX *ctx;
464 const RSA_METHOD *ossl_rsa_meth;
465 const DSA_METHOD *ossl_dsa_meth;
466
467 if (capi_idx < 0) {
468 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
469 if (capi_idx < 0)
470 goto memerr;
471
472 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
473
474 /* Setup RSA_METHOD */
475 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
476 ossl_rsa_meth = RSA_PKCS1_SSLeay();
477 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
478 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
479 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
480 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
481
482 /* Setup DSA Method */
483 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
484 ossl_dsa_meth = DSA_OpenSSL();
485 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
486 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
487 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
488 }
489
490 ctx = capi_ctx_new();
491 if (!ctx)
492 goto memerr;
493
494 ENGINE_set_ex_data(e, capi_idx, ctx);
495
496# ifdef OPENSSL_CAPIENG_DIALOG
497 {
498 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
499 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
500 if (cryptui)
501 ctx->certselectdlg =
502 (CERTDLG) GetProcAddress(cryptui,
503 "CryptUIDlgSelectCertificateFromStore");
504 if (kernel)
505 ctx->getconswindow =
506 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
507 if (cryptui && !OPENSSL_isservice())
508 ctx->client_cert_select = cert_select_dialog;
509 }
510# endif
511
512 return 1;
513
514 memerr:
515 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
516 return 0;
517
518 return 1;
519}
7a18ecb2
DSH		 520
521static int capi_destroy(ENGINE *e)
0f113f3e
MC		 522{
523 ERR_unload_CAPI_strings();
524 return 1;
525}
7a18ecb2
DSH		 526
527static int capi_finish(ENGINE *e)
0f113f3e
MC		 528{
529 CAPI_CTX *ctx;
530 ctx = ENGINE_get_ex_data(e, capi_idx);
531 capi_ctx_free(ctx);
532 ENGINE_set_ex_data(e, capi_idx, NULL);
533 return 1;
534}
535
536/*
537 * CryptoAPI key application data. This contains a handle to the private key
538 * container (for sign operations) and a handle to the key (for decrypt
539 * operations).
7a18ecb2
DSH		 540 */
541
0f113f3e
MC		 542struct CAPI_KEY_st {
543 /* Associated certificate context (if any) */
544 PCCERT_CONTEXT pcert;
545 HCRYPTPROV hprov;
546 HCRYPTKEY key;
547 DWORD keyspec;
548};
7a18ecb2
DSH		 549
550static int bind_capi(ENGINE *e)
0f113f3e
MC		 551{
552 if (!ENGINE_set_id(e, engine_capi_id)
553 || !ENGINE_set_name(e, engine_capi_name)
554 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
555 || !ENGINE_set_init_function(e, capi_init)
556 || !ENGINE_set_finish_function(e, capi_finish)
557 || !ENGINE_set_destroy_function(e, capi_destroy)
558 || !ENGINE_set_RSA(e, &capi_rsa_method)
559 || !ENGINE_set_DSA(e, &capi_dsa_method)
560 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
561 || !ENGINE_set_load_ssl_client_cert_function(e,
562 capi_load_ssl_client_cert)
563 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
564 || !ENGINE_set_ctrl_function(e, capi_ctrl))
565 return 0;
566 ERR_load_CAPI_strings();
567
568 return 1;
569
570}
571
572# ifndef OPENSSL_NO_DYNAMIC_ENGINE
7a18ecb2 573static int bind_helper(ENGINE *e, const char *id)
0f113f3e
MC		 574{
575 if (id && (strcmp(id, engine_capi_id) != 0))
576 return 0;
577 if (!bind_capi(e))
578 return 0;
579 return 1;
580}
581
7a18ecb2 582IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e
MC		 583 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
584# else
7a18ecb2 585static ENGINE *engine_capi(void)
0f113f3e
MC		 586{
587 ENGINE *ret = ENGINE_new();
588 if (!ret)
589 return NULL;
590 if (!bind_capi(ret)) {
591 ENGINE_free(ret);
592 return NULL;
593 }
594 return ret;
595}
7a18ecb2
DSH		 596
597void ENGINE_load_capi(void)
0f113f3e
MC		 598{
599 /* Copied from eng_[openssl|dyn].c */
600 ENGINE *toadd = engine_capi();
601 if (!toadd)
602 return;
603 ENGINE_add(toadd);
604 ENGINE_free(toadd);
605 ERR_clear_error();
606}
607# endif
7a18ecb2
DSH		 608
609static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
0f113f3e
MC		 610{
611 int i;
612 /*
613 * Reverse buffer in place: since this is a keyblob structure that will
614 * be freed up after conversion anyway it doesn't matter if we change
615 * it.
616 */
617 for (i = 0; i < binlen / 2; i++) {
618 unsigned char c;
619 c = bin[i];
620 bin[i] = bin[binlen - i - 1];
621 bin[binlen - i - 1] = c;
622 }
623
624 if (!BN_bin2bn(bin, binlen, bn))
625 return 0;
626 return 1;
627}
7a18ecb2 628
b3c8dd4e
DSH		 629/* Given a CAPI_KEY get an EVP_PKEY structure */
630
0f113f3e
MC		 631static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY * key)
632{
633 unsigned char *pubkey = NULL;
634 DWORD len;
635 BLOBHEADER *bh;
636 RSA *rkey = NULL;
637 DSA *dkey = NULL;
638 EVP_PKEY *ret = NULL;
639 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
640 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
641 capi_addlasterror();
642 return NULL;
643 }
644
645 pubkey = OPENSSL_malloc(len);
646
647 if (!pubkey)
648 goto memerr;
649
650 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
651 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
652 capi_addlasterror();
653 goto err;
654 }
655
656 bh = (BLOBHEADER *) pubkey;
657 if (bh->bType != PUBLICKEYBLOB) {
658 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
659 goto err;
660 }
661 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
662 RSAPUBKEY *rp;
663 DWORD rsa_modlen;
664 unsigned char *rsa_modulus;
665 rp = (RSAPUBKEY *) (bh + 1);
666 if (rp->magic != 0x31415352) {
667 char magstr[10];
668 BIO_snprintf(magstr, 10, "%lx", rp->magic);
669 CAPIerr(CAPI_F_CAPI_GET_PKEY,
670 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
671 ERR_add_error_data(2, "magic=0x", magstr);
672 goto err;
673 }
674 rsa_modulus = (unsigned char *)(rp + 1);
675 rkey = RSA_new_method(eng);
676 if (!rkey)
677 goto memerr;
678
679 rkey->e = BN_new();
680 rkey->n = BN_new();
681
682 if (!rkey->e || !rkey->n)
683 goto memerr;
684
685 if (!BN_set_word(rkey->e, rp->pubexp))
686 goto memerr;
687
688 rsa_modlen = rp->bitlen / 8;
689 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
690 goto memerr;
691
692 RSA_set_ex_data(rkey, rsa_capi_idx, key);
693
694 if (!(ret = EVP_PKEY_new()))
695 goto memerr;
696
697 EVP_PKEY_assign_RSA(ret, rkey);
698 rkey = NULL;
699
700 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
701 DSSPUBKEY *dp;
702 DWORD dsa_plen;
703 unsigned char *btmp;
704 dp = (DSSPUBKEY *) (bh + 1);
705 if (dp->magic != 0x31535344) {
706 char magstr[10];
707 BIO_snprintf(magstr, 10, "%lx", dp->magic);
708 CAPIerr(CAPI_F_CAPI_GET_PKEY,
709 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
710 ERR_add_error_data(2, "magic=0x", magstr);
711 goto err;
712 }
713 dsa_plen = dp->bitlen / 8;
714 btmp = (unsigned char *)(dp + 1);
715 dkey = DSA_new_method(eng);
716 if (!dkey)
717 goto memerr;
718 dkey->p = BN_new();
719 dkey->q = BN_new();
720 dkey->g = BN_new();
721 dkey->pub_key = BN_new();
722 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
723 goto memerr;
724 if (!lend_tobn(dkey->p, btmp, dsa_plen))
725 goto memerr;
726 btmp += dsa_plen;
727 if (!lend_tobn(dkey->q, btmp, 20))
728 goto memerr;
729 btmp += 20;
730 if (!lend_tobn(dkey->g, btmp, dsa_plen))
731 goto memerr;
732 btmp += dsa_plen;
733 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
734 goto memerr;
735 btmp += dsa_plen;
736
737 DSA_set_ex_data(dkey, dsa_capi_idx, key);
738
739 if (!(ret = EVP_PKEY_new()))
740 goto memerr;
741
742 EVP_PKEY_assign_DSA(ret, dkey);
743 dkey = NULL;
744 } else {
745 char algstr[10];
746 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
747 CAPIerr(CAPI_F_CAPI_GET_PKEY,
748 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
749 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
750 goto err;
751 }
752
753 err:
754 if (pubkey)
755 OPENSSL_free(pubkey);
756 if (!ret) {
d6407083
RS		 757 RSA_free(rkey);
758 DSA_free(dkey);
0f113f3e
MC		 759 }
760
761 return ret;
762
763 memerr:
764 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
765 goto err;
766
767}
7a18ecb2 768
b3c8dd4e 769static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
0f113f3e
MC		 770 UI_METHOD *ui_method, void *callback_data)
771{
772 CAPI_CTX *ctx;
773 CAPI_KEY *key;
774 EVP_PKEY *ret;
775 ctx = ENGINE_get_ex_data(eng, capi_idx);
b3c8dd4e 776
0f113f3e
MC		 777 if (!ctx) {
778 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
779 return NULL;
780 }
b3c8dd4e 781
0f113f3e 782 key = capi_find_key(ctx, key_id);
b3c8dd4e 783
0f113f3e
MC		 784 if (!key)
785 return NULL;
b3c8dd4e 786
0f113f3e 787 ret = capi_get_pkey(eng, key);
b3c8dd4e 788
0f113f3e
MC		 789 if (!ret)
790 capi_free_key(key);
791 return ret;
b3c8dd4e 792
0f113f3e 793}
b3c8dd4e 794
7a18ecb2
DSH		 795/* CryptoAPI RSA operations */
796
797int capi_rsa_priv_enc(int flen, const unsigned char *from,
0f113f3e
MC		 798 unsigned char *to, RSA *rsa, int padding)
799{
800 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
801 return -1;
802}
7a18ecb2
DSH		 803
804int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
0f113f3e
MC		 805 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
806{
807 ALG_ID alg;
808 HCRYPTHASH hash;
809 DWORD slen;
810 unsigned int i;
811 int ret = -1;
812 CAPI_KEY *capi_key;
813 CAPI_CTX *ctx;
814
815 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
816
817 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
818
819 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
820 if (!capi_key) {
821 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
822 return -1;
823 }
7a18ecb2 824/* Convert the signature type to a CryptoAPI algorithm ID */
0f113f3e
MC		 825 switch (dtype) {
826 case NID_sha256:
827 alg = CALG_SHA_256;
828 break;
829
830 case NID_sha384:
831 alg = CALG_SHA_384;
832 break;
833
834 case NID_sha512:
835 alg = CALG_SHA_512;
836 break;
837
838 case NID_sha1:
839 alg = CALG_SHA1;
840 break;
841
842 case NID_md5:
843 alg = CALG_MD5;
844 break;
845
846 case NID_md5_sha1:
847 alg = CALG_SSL3_SHAMD5;
848 break;
849 default:
850 {
851 char algstr[10];
852 BIO_snprintf(algstr, 10, "%lx", dtype);
853 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
854 ERR_add_error_data(2, "NID=0x", algstr);
855 return -1;
856 }
857 }
7a18ecb2
DSH		 858
859/* Create the hash object */
0f113f3e
MC		 860 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
861 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
862 capi_addlasterror();
863 return -1;
864 }
7a18ecb2
DSH		 865/* Set the hash value to the value passed */
866
0f113f3e
MC		 867 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
868 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
869 capi_addlasterror();
870 goto err;
871 }
7a18ecb2
DSH		 872
873/* Finally sign it */
0f113f3e
MC		 874 slen = RSA_size(rsa);
875 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
876 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
877 capi_addlasterror();
878 goto err;
879 } else {
880 ret = 1;
881 /* Inplace byte reversal of signature */
882 for (i = 0; i < slen / 2; i++) {
883 unsigned char c;
884 c = sigret[i];
885 sigret[i] = sigret[slen - i - 1];
886 sigret[slen - i - 1] = c;
887 }
888 *siglen = slen;
889 }
890
891 /* Now cleanup */
892
893 err:
894 CryptDestroyHash(hash);
895
896 return ret;
897}
7a18ecb2
DSH		 898
899int capi_rsa_priv_dec(int flen, const unsigned char *from,
0f113f3e
MC		 900 unsigned char *to, RSA *rsa, int padding)
901{
902 int i;
903 unsigned char *tmpbuf;
904 CAPI_KEY *capi_key;
905 CAPI_CTX *ctx;
906 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
907
908 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
909
910 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
911 if (!capi_key) {
912 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
913 return -1;
914 }
915
916 if (padding != RSA_PKCS1_PADDING) {
917 char errstr[10];
918 BIO_snprintf(errstr, 10, "%d", padding);
919 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
920 ERR_add_error_data(2, "padding=", errstr);
921 return -1;
922 }
923
924 /* Create temp reverse order version of input */
925 if (!(tmpbuf = OPENSSL_malloc(flen))) {
926 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
927 return -1;
928 }
929 for (i = 0; i < flen; i++)
930 tmpbuf[flen - i - 1] = from[i];
931
932 /* Finally decrypt it */
933 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen)) {
934 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
935 capi_addlasterror();
936 OPENSSL_free(tmpbuf);
937 return -1;
938 } else
939 memcpy(to, tmpbuf, flen);
940
941 OPENSSL_free(tmpbuf);
942
943 return flen;
944}
7a18ecb2
DSH		 945
946static int capi_rsa_free(RSA *rsa)
0f113f3e
MC		 947{
948 CAPI_KEY *capi_key;
949 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
950 capi_free_key(capi_key);
951 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
952 return 1;
953}
7a18ecb2
DSH		 954
955/* CryptoAPI DSA operations */
956
957static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
0f113f3e
MC		 958 DSA *dsa)
959{
960 HCRYPTHASH hash;
961 DWORD slen;
962 DSA_SIG *ret = NULL;
963 CAPI_KEY *capi_key;
964 CAPI_CTX *ctx;
965 unsigned char csigbuf[40];
966
967 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
968
969 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
970
971 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
972
973 if (!capi_key) {
974 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
975 return NULL;
976 }
977
978 if (dlen != 20) {
979 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
980 return NULL;
981 }
982
983 /* Create the hash object */
984 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
985 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
986 capi_addlasterror();
987 return NULL;
988 }
989
990 /* Set the hash value to the value passed */
991 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
992 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
993 capi_addlasterror();
994 goto err;
995 }
996
997 /* Finally sign it */
998 slen = sizeof(csigbuf);
999 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1000 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1001 capi_addlasterror();
1002 goto err;
1003 } else {
1004 ret = DSA_SIG_new();
1005 if (!ret)
1006 goto err;
1007 ret->r = BN_new();
1008 ret->s = BN_new();
1009 if (!ret->r || !ret->s)
1010 goto err;
1011 if (!lend_tobn(ret->r, csigbuf, 20)
1012 || !lend_tobn(ret->s, csigbuf + 20, 20)) {
1013 DSA_SIG_free(ret);
1014 ret = NULL;
1015 goto err;
1016 }
1017 }
1018
1019 /* Now cleanup */
1020
1021 err:
1022 OPENSSL_cleanse(csigbuf, 40);
1023 CryptDestroyHash(hash);
1024 return ret;
1025}
7a18ecb2
DSH		 1026
1027static int capi_dsa_free(DSA *dsa)
0f113f3e
MC		 1028{
1029 CAPI_KEY *capi_key;
1030 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1031 capi_free_key(capi_key);
1032 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1033 return 1;
1034}
1035
1036static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
1037 va_list argptr)
1038{
1039 BIO *out;
1040
1041 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1042 return;
1043 out = BIO_new_file(ctx->debug_file, "a+");
1044 if (out == NULL) {
1045 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1046 return;
1047 }
1048 BIO_vprintf(out, format, argptr);
1049 BIO_free(out);
1050}
1051
1052static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
1053{
1054 va_list args;
1055 va_start(args, format);
1056 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1057 va_end(args);
1058}
7a18ecb2
DSH		 1059
1060static void capi_addlasterror(void)
0f113f3e
MC		 1061{
1062 capi_adderror(GetLastError());
1063}
7a18ecb2
DSH		 1064
1065static void capi_adderror(DWORD err)
0f113f3e
MC		 1066{
1067 char errstr[10];
1068 BIO_snprintf(errstr, 10, "%lX", err);
1069 ERR_add_error_data(2, "Error code= 0x", errstr);
1070}
7a18ecb2 1071
cc4c2306 1072static char *wide_to_asc(LPCWSTR wstr)
0f113f3e
MC		 1073{
1074 char *str;
1075 int len_0, sz;
1076
1077 if (!wstr)
1078 return NULL;
1079 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1080 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1081 if (!sz) {
1082 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1083 return NULL;
1084 }
1085 str = OPENSSL_malloc(sz);
1086 if (!str) {
1087 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1088 return NULL;
1089 }
1090 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1091 OPENSSL_free(str);
1092 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1093 return NULL;
1094 }
1095 return str;
1096}
1097
1098static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1099 DWORD idx)
1100{
1101 DWORD len, err;
1102 LPTSTR name;
1103 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1104 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1105 err = GetLastError();
1106 if (err == ERROR_NO_MORE_ITEMS)
1107 return 2;
1108 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1109 capi_adderror(err);
1110 return 0;
1111 }
1112 name = OPENSSL_malloc(len);
1113 if (name == NULL) {
1114 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1115 return 0;
1116 }
1117 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1118 err = GetLastError();
1119 OPENSSL_free(name);
1120 if (err == ERROR_NO_MORE_ITEMS)
1121 return 2;
1122 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1123 capi_adderror(err);
1124 return 0;
1125 }
1126 if (sizeof(TCHAR) != sizeof(char)) {
1127 *pname = wide_to_asc((WCHAR *)name);
1128 OPENSSL_free(name);
1129 if (*pname == NULL)
1130 return 0;
1131 } else
1132 *pname = (char *)name;
1133 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1134 *ptype);
1135
1136 return 1;
1137}
1138
1139static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1140{
1141 DWORD idx, ptype;
1142 int ret;
1143 LPSTR provname = NULL;
1144 CAPI_trace(ctx, "capi_list_providers\n");
1145 BIO_printf(out, "Available CSPs:\n");
1146 for (idx = 0;; idx++) {
1147 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1148 if (ret == 2)
1149 break;
1150 if (ret == 0)
1151 break;
1152 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1153 OPENSSL_free(provname);
1154 }
1155 return 1;
1156}
1157
1158static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1159{
1160 int ret = 1;
1161 HCRYPTPROV hprov;
1162 DWORD err, idx, flags, buflen = 0, clen;
1163 LPSTR cname;
1164 LPTSTR cspname = NULL;
1165
1166 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1167 ctx->csptype);
1168 if (ctx->cspname && sizeof(TCHAR) != sizeof(char)) {
1169 if ((clen =
1170 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))) {
1171 cspname = alloca(clen * sizeof(WCHAR));
1172 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1173 clen);
1174 }
1175 if (!cspname) {
1176 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1177 capi_addlasterror();
1178 return 0;
1179 }
1180 } else
1181 cspname = (TCHAR *)ctx->cspname;
1182 if (!CryptAcquireContext
1183 (&hprov, NULL, cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1184 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1185 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1186 capi_addlasterror();
1187 return 0;
1188 }
1189 if (!CryptGetProvParam
1190 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1191 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1192 capi_addlasterror();
1193 CryptReleaseContext(hprov, 0);
1194 return 0;
1195 }
1196 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1197 if (buflen == 0)
1198 buflen = 1024;
1199 cname = OPENSSL_malloc(buflen);
1200 if (!cname) {
1201 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1202 goto err;
1203 }
1204
1205 for (idx = 0;; idx++) {
1206 clen = buflen;
1207 cname[0] = 0;
1208
1209 if (idx == 0)
1210 flags = CRYPT_FIRST;
1211 else
1212 flags = 0;
1213 if (!CryptGetProvParam
1214 (hprov, PP_ENUMCONTAINERS, (BYTE *) cname, &clen, flags)) {
1215 err = GetLastError();
1216 if (err == ERROR_NO_MORE_ITEMS)
1217 goto done;
1218 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1219 capi_adderror(err);
1220 goto err;
1221 }
1222 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1223 cname, clen, idx, flags);
1224 if (!cname[0] && (clen == buflen)) {
1225 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1226 goto done;
1227 }
1228 BIO_printf(out, "%d. %s\n", idx, cname);
1229 }
1230 err:
1231
1232 ret = 0;
1233
1234 done:
1235 if (cname)
1236 OPENSSL_free(cname);
1237 CryptReleaseContext(hprov, 0);
1238
1239 return ret;
1240}
1241
1242CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1243{
1244 DWORD len;
1245 CRYPT_KEY_PROV_INFO *pinfo;
1246
1247 if (!CertGetCertificateContextProperty
1248 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1249 return NULL;
1250 pinfo = OPENSSL_malloc(len);
1251 if (!pinfo) {
1252 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1253 return NULL;
1254 }
1255 if (!CertGetCertificateContextProperty
1256 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1257 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1258 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1259 capi_addlasterror();
1260 OPENSSL_free(pinfo);
1261 return NULL;
1262 }
1263 return pinfo;
1264}
1265
1266static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1267 CRYPT_KEY_PROV_INFO * pinfo)
1268{
1269 char *provname = NULL, *contname = NULL;
1270 if (!pinfo) {
1271 BIO_printf(out, " No Private Key\n");
1272 return;
1273 }
1274 provname = wide_to_asc(pinfo->pwszProvName);
1275 contname = wide_to_asc(pinfo->pwszContainerName);
1276 if (!provname || !contname)
1277 goto err;
1278
1279 BIO_printf(out, " Private Key Info:\n");
1280 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname,
1281 pinfo->dwProvType);
1282 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname,
1283 pinfo->dwKeySpec);
1284 err:
1285 if (provname)
1286 OPENSSL_free(provname);
1287 if (contname)
1288 OPENSSL_free(contname);
1289}
1290
1291char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1292{
1293 LPWSTR wfname;
1294 DWORD dlen;
1295
1296 CAPI_trace(ctx, "capi_cert_get_fname\n");
1297 if (!CertGetCertificateContextProperty
1298 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1299 return NULL;
1300 wfname = OPENSSL_malloc(dlen);
1301 if (wfname == NULL)
1302 return NULL;
1303 if (CertGetCertificateContextProperty
1304 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1305 char *fname = wide_to_asc(wfname);
1306 OPENSSL_free(wfname);
1307 return fname;
1308 }
1309 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1310 capi_addlasterror();
1311
1312 OPENSSL_free(wfname);
1313 return NULL;
1314}
1315
1316void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
1317{
1318 X509 *x;
1319 unsigned char *p;
1320 unsigned long flags = ctx->dump_flags;
1321 if (flags & CAPI_DMP_FNAME) {
1322 char *fname;
1323 fname = capi_cert_get_fname(ctx, cert);
1324 if (fname) {
1325 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1326 OPENSSL_free(fname);
1327 } else
1328 BIO_printf(out, " <No Friendly Name>\n");
1329 }
1330
1331 p = cert->pbCertEncoded;
1332 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1333 if (!x)
1334 BIO_printf(out, " <Can't parse certificate>\n");
1335 if (flags & CAPI_DMP_SUMMARY) {
1336 BIO_printf(out, " Subject: ");
1337 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1338 BIO_printf(out, "\n Issuer: ");
1339 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1340 BIO_printf(out, "\n");
1341 }
1342 if (flags & CAPI_DMP_FULL)
1343 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1344
1345 if (flags & CAPI_DMP_PKEYINFO) {
1346 CRYPT_KEY_PROV_INFO *pinfo;
1347 pinfo = capi_get_prov_info(ctx, cert);
1348 capi_dump_prov_info(ctx, out, pinfo);
1349 if (pinfo)
1350 OPENSSL_free(pinfo);
1351 }
1352
1353 if (flags & CAPI_DMP_PEM)
1354 PEM_write_bio_X509(out, x);
1355 X509_free(x);
1356}
1357
1358HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
1359{
1360 HCERTSTORE hstore;
1361
1362 if (!storename)
1363 storename = ctx->storename;
1364 if (!storename)
1365 storename = "MY";
1366 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1367
1368 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1369 ctx->store_flags, storename);
1370 if (!hstore) {
1371 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1372 capi_addlasterror();
1373 }
1374 return hstore;
1375}
1376
1377int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1378{
1379 char *storename;
1380 int idx;
1381 int ret = 1;
1382 HCERTSTORE hstore;
1383 PCCERT_CONTEXT cert = NULL;
1384
1385 storename = ctx->storename;
1386 if (!storename)
1387 storename = "MY";
1388 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1389
1390 hstore = capi_open_store(ctx, storename);
1391 if (!hstore)
1392 return 0;
1393 if (id) {
1394 cert = capi_find_cert(ctx, id, hstore);
1395 if (!cert) {
1396 ret = 0;
1397 goto err;
1398 }
1399 capi_dump_cert(ctx, out, cert);
1400 CertFreeCertificateContext(cert);
1401 } else {
1402 for (idx = 0;; idx++) {
1403 cert = CertEnumCertificatesInStore(hstore, cert);
1404 if (!cert)
1405 break;
1406 BIO_printf(out, "Certificate %d\n", idx);
1407 capi_dump_cert(ctx, out, cert);
1408 }
1409 }
1410 err:
1411 CertCloseStore(hstore, 0);
1412 return ret;
1413}
1414
1415static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1416 HCERTSTORE hstore)
1417{
1418 PCCERT_CONTEXT cert = NULL;
1419 char *fname = NULL;
1420 int match;
1421 switch (ctx->lookup_method) {
1422 case CAPI_LU_SUBSTR:
1423 return CertFindCertificateInStore(hstore,
1424 X509_ASN_ENCODING, 0,
1425 CERT_FIND_SUBJECT_STR_A, id, NULL);
1426 case CAPI_LU_FNAME:
1427 for (;;) {
1428 cert = CertEnumCertificatesInStore(hstore, cert);
1429 if (!cert)
1430 return NULL;
1431 fname = capi_cert_get_fname(ctx, cert);
1432 if (fname) {
1433 if (strcmp(fname, id))
1434 match = 0;
1435 else
1436 match = 1;
1437 OPENSSL_free(fname);
1438 if (match)
1439 return cert;
1440 }
1441 }
1442 default:
1443 return NULL;
1444 }
1445}
1446
1447static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const TCHAR *contname,
1448 TCHAR *provname, DWORD ptype, DWORD keyspec)
1449{
1450 CAPI_KEY *key;
1451 DWORD dwFlags = 0;
1452 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1453 if (key == NULL)
1454 return NULL;
1455 if (sizeof(TCHAR) == sizeof(char))
1456 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1457 contname, provname, ptype);
1458 else if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1459 /* above 'if' is optimization to minimize malloc-ations */
1460 char *_contname = wide_to_asc((WCHAR *)contname);
1461 char *_provname = wide_to_asc((WCHAR *)provname);
1462
1463 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1464 _contname, _provname, ptype);
1465 if (_provname)
1466 OPENSSL_free(_provname);
1467 if (_contname)
1468 OPENSSL_free(_contname);
1469 }
1470 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1471 dwFlags = CRYPT_MACHINE_KEYSET;
1472 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, dwFlags)) {
1473 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1474 capi_addlasterror();
1475 goto err;
1476 }
1477 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1478 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1479 capi_addlasterror();
1480 CryptReleaseContext(key->hprov, 0);
1481 goto err;
1482 }
1483 key->keyspec = keyspec;
1484 key->pcert = NULL;
1485 return key;
1486
1487 err:
1488 OPENSSL_free(key);
1489 return NULL;
1490}
1491
1492static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1493{
1494 CAPI_KEY *key = NULL;
1495 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1496 char *provname = NULL, *contname = NULL;
1497 pinfo = capi_get_prov_info(ctx, cert);
1498 if (!pinfo)
1499 goto err;
1500 if (sizeof(TCHAR) != sizeof(char))
1501 key = capi_get_key(ctx, (TCHAR *)pinfo->pwszContainerName,
1502 (TCHAR *)pinfo->pwszProvName,
1503 pinfo->dwProvType, pinfo->dwKeySpec);
1504 else {
1505 provname = wide_to_asc(pinfo->pwszProvName);
1506 contname = wide_to_asc(pinfo->pwszContainerName);
1507 if (!provname || !contname)
1508 goto err;
1509 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1510 pinfo->dwProvType, pinfo->dwKeySpec);
1511 }
1512
1513 err:
1514 if (pinfo)
1515 OPENSSL_free(pinfo);
1516 if (provname)
1517 OPENSSL_free(provname);
1518 if (contname)
1519 OPENSSL_free(contname);
1520 return key;
1521}
1522
1523CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1524{
1525 PCCERT_CONTEXT cert;
1526 HCERTSTORE hstore;
1527 CAPI_KEY *key = NULL;
1528 switch (ctx->lookup_method) {
1529 case CAPI_LU_SUBSTR:
1530 case CAPI_LU_FNAME:
1531 hstore = capi_open_store(ctx, NULL);
1532 if (!hstore)
1533 return NULL;
1534 cert = capi_find_cert(ctx, id, hstore);
1535 if (cert) {
1536 key = capi_get_cert_key(ctx, cert);
1537 CertFreeCertificateContext(cert);
1538 }
1539 CertCloseStore(hstore, 0);
1540 break;
1541
1542 case CAPI_LU_CONTNAME:
1543 if (sizeof(TCHAR) != sizeof(char)) {
1544 WCHAR *contname, *provname;
1545 DWORD len;
1546
1547 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1548 (contname = alloca(len * sizeof(WCHAR)),
1549 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1550 (len =
1551 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))
1552 && (provname =
1553 alloca(len * sizeof(WCHAR)), MultiByteToWideChar(CP_ACP,
1554 0,
1555 ctx->cspname,
1556 -1,
1557 provname,
1558 len)))
1559 key =
1560 capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1561 ctx->csptype, ctx->keytype);
1562 } else
1563 key = capi_get_key(ctx, (TCHAR *)id,
1564 (TCHAR *)ctx->cspname,
1565 ctx->csptype, ctx->keytype);
1566 break;
1567 }
1568
1569 return key;
1570}
1571
1572void capi_free_key(CAPI_KEY * key)
1573{
1574 if (!key)
1575 return;
1576 CryptDestroyKey(key->key);
1577 CryptReleaseContext(key->hprov, 0);
1578 if (key->pcert)
1579 CertFreeCertificateContext(key->pcert);
1580 OPENSSL_free(key);
1581}
7a18ecb2
DSH		 1582
1583/* Initialize a CAPI_CTX structure */
1584
1585static CAPI_CTX *capi_ctx_new()
0f113f3e
MC		 1586{
1587 CAPI_CTX *ctx;
1588 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1589 if (!ctx) {
1590 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1591 return NULL;
1592 }
1593 ctx->cspname = NULL;
1594 ctx->csptype = PROV_RSA_FULL;
1595 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1596 ctx->keytype = AT_KEYEXCHANGE;
1597 ctx->storename = NULL;
1598 ctx->ssl_client_store = NULL;
1599 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1600 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1601 ctx->lookup_method = CAPI_LU_SUBSTR;
1602 ctx->debug_level = 0;
1603 ctx->debug_file = NULL;
1604 ctx->client_cert_select = cert_select_simple;
1605 return ctx;
1606}
1607
1608static void capi_ctx_free(CAPI_CTX * ctx)
1609{
1610 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1611 if (!ctx)
1612 return;
1613 if (ctx->cspname)
1614 OPENSSL_free(ctx->cspname);
1615 if (ctx->debug_file)
1616 OPENSSL_free(ctx->debug_file);
1617 if (ctx->storename)
1618 OPENSSL_free(ctx->storename);
1619 if (ctx->ssl_client_store)
1620 OPENSSL_free(ctx->ssl_client_store);
1621 OPENSSL_free(ctx);
1622}
1623
1624static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1625 int check)
1626{
1627 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1628 if (check) {
1629 HCRYPTPROV hprov;
1630 LPTSTR name = NULL;
1631
1632 if (sizeof(TCHAR) != sizeof(char)) {
1633 DWORD len;
1634 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1635 name = alloca(len * sizeof(WCHAR));
1636 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1637 }
1638 } else
1639 name = (TCHAR *)pname;
1640
1641 if (!name || !CryptAcquireContext(&hprov, NULL, name, type,
1642 CRYPT_VERIFYCONTEXT)) {
1643 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1644 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1645 capi_addlasterror();
1646 return 0;
1647 }
1648 CryptReleaseContext(hprov, 0);
1649 }
1650 if (ctx->cspname)
1651 OPENSSL_free(ctx->cspname);
1652 ctx->cspname = BUF_strdup(pname);
1653 ctx->csptype = type;
1654 return 1;
1655}
1656
1657static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1658{
1659 LPSTR pname;
1660 DWORD type;
1661 int res;
1662 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1663 return 0;
1664 res = capi_ctx_set_provname(ctx, pname, type, 0);
1665 OPENSSL_free(pname);
1666 return res;
1667}
7a18ecb2 1668
b3c8dd4e 1669static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
0f113f3e
MC		 1670{
1671 int i;
1672 X509_NAME *nm;
1673 /* Special case: empty list: match anything */
1674 if (sk_X509_NAME_num(ca_dn) <= 0)
1675 return 1;
1676 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1677 nm = sk_X509_NAME_value(ca_dn, i);
1678 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1679 return 1;
1680 }
1681 return 0;
1682}
7d537d4f 1683
b3c8dd4e 1684static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
0f113f3e
MC		 1685 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1686 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1687 UI_METHOD *ui_method,
1688 void *callback_data)
1689{
1690 STACK_OF(X509) *certs = NULL;
1691 X509 *x;
1692 char *storename;
1693 const char *p;
1694 int i, client_cert_idx;
1695 HCERTSTORE hstore;
1696 PCCERT_CONTEXT cert = NULL, excert = NULL;
1697 CAPI_CTX *ctx;
1698 CAPI_KEY *key;
1699 ctx = ENGINE_get_ex_data(e, capi_idx);
1700
1701 *pcert = NULL;
1702 *pkey = NULL;
1703
1704 storename = ctx->ssl_client_store;
1705 if (!storename)
1706 storename = "MY";
1707
1708 hstore = capi_open_store(ctx, storename);
1709 if (!hstore)
1710 return 0;
1711 /* Enumerate all certificates collect any matches */
1712 for (i = 0;; i++) {
1713 cert = CertEnumCertificatesInStore(hstore, cert);
1714 if (!cert)
1715 break;
1716 p = cert->pbCertEncoded;
1717 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1718 if (!x) {
1719 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1720 continue;
1721 }
1722 if (cert_issuer_match(ca_dn, x)
1723 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1724 key = capi_get_cert_key(ctx, cert);
1725 if (!key) {
1726 X509_free(x);
1727 continue;
1728 }
1729 /*
1730 * Match found: attach extra data to it so we can retrieve the
1731 * key later.
1732 */
1733 excert = CertDuplicateCertificateContext(cert);
1734 key->pcert = excert;
1735 X509_set_ex_data(x, cert_capi_idx, key);
1736
1737 if (!certs)
1738 certs = sk_X509_new_null();
1739
1740 sk_X509_push(certs, x);
1741 } else
1742 X509_free(x);
1743
1744 }
1745
1746 if (cert)
1747 CertFreeCertificateContext(cert);
1748 if (hstore)
1749 CertCloseStore(hstore, 0);
1750
1751 if (!certs)
1752 return 0;
1753
1754 /* Select the appropriate certificate */
1755
1756 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1757
1758 /* Set the selected certificate and free the rest */
1759
1760 for (i = 0; i < sk_X509_num(certs); i++) {
1761 x = sk_X509_value(certs, i);
1762 if (i == client_cert_idx)
1763 *pcert = x;
1764 else {
1765 key = X509_get_ex_data(x, cert_capi_idx);
1766 capi_free_key(key);
1767 X509_free(x);
1768 }
1769 }
1770
1771 sk_X509_free(certs);
1772
1773 if (!*pcert)
1774 return 0;
1775
1776 /* Setup key for selected certificate */
1777
1778 key = X509_get_ex_data(*pcert, cert_capi_idx);
1779 *pkey = capi_get_pkey(e, key);
1780 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1781
1782 return 1;
1783
1784}
e0f7b872
DSH		 1785
1786/* Simple client cert selection function: always select first */
1787
1cd504e7 1788static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1789{
1790 return 0;
1791}
e0f7b872 1792
0f113f3e 1793# ifdef OPENSSL_CAPIENG_DIALOG
e0f7b872 1794
0f113f3e
MC		 1795/*
1796 * More complex cert selection function, using standard function
e0f7b872
DSH		 1797 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1798 */
1799
0f113f3e
MC		 1800/*
1801 * Definitions which are in cryptuiapi.h but this is not present in older
a0f3679b
DSH		 1802 * versions of headers.
1803 */
1804
0f113f3e
MC		 1805# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1806# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1807# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1808# endif
e0f7b872 1809
0f113f3e
MC		 1810# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1811# define dlg_prompt L"Select a certificate to use for authentication"
1812# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1813 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1381bf90 1814
1cd504e7 1815static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1816{
1817 X509 *x;
1818 HCERTSTORE dstore;
1819 PCCERT_CONTEXT cert;
1820 CAPI_CTX *ctx;
1821 CAPI_KEY *key;
1822 HWND hwnd;
1823 int i, idx = -1;
1824 if (sk_X509_num(certs) == 1)
1825 return 0;
1826 ctx = ENGINE_get_ex_data(e, capi_idx);
1827 /* Create an in memory store of certificates */
1828 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1829 CERT_STORE_CREATE_NEW_FLAG, NULL);
1830 if (!dstore) {
1831 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1832 capi_addlasterror();
1833 goto err;
1834 }
1835 /* Add all certificates to store */
1836 for (i = 0; i < sk_X509_num(certs); i++) {
1837 x = sk_X509_value(certs, i);
1838 key = X509_get_ex_data(x, cert_capi_idx);
1839
1840 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1841 CERT_STORE_ADD_NEW, NULL)) {
1842 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1843 capi_addlasterror();
1844 goto err;
1845 }
1846
1847 }
1848 hwnd = GetForegroundWindow();
1849 if (!hwnd)
1850 hwnd = GetActiveWindow();
1851 if (!hwnd && ctx->getconswindow)
1852 hwnd = ctx->getconswindow();
1853 /* Call dialog to select one */
1854 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1855 dlg_columns, 0, NULL);
1856
1857 /* Find matching cert from list */
1858 if (cert) {
1859 for (i = 0; i < sk_X509_num(certs); i++) {
1860 x = sk_X509_value(certs, i);
1861 key = X509_get_ex_data(x, cert_capi_idx);
1862 if (CertCompareCertificate
1863 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1864 key->pcert->pCertInfo)) {
1865 idx = i;
1866 break;
1867 }
1868 }
1869 }
1870
1871 err:
1872 if (dstore)
1873 CertCloseStore(dstore, 0);
1874 return idx;
1875
1876}
1877# endif
1878
1879#else /* !__COMPILE_CAPIENG */
1880# include <openssl/engine.h>
1881# ifndef OPENSSL_NO_DYNAMIC_ENGINE
492279f6 1882OPENSSL_EXPORT
0f113f3e 1883 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
eb164d0b 1884OPENSSL_EXPORT
0f113f3e
MC		 1885 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1886{
1887 return 0;
1888}
1889
492279f6 1890IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e
MC		 1891# else
1892void ENGINE_load_capi(void)
1893{
1894}
1895# endif
7a18ecb2 1896#endif
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