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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) {
757 if (rkey)
758 RSA_free(rkey);
759 if (dkey)
760 DSA_free(dkey);
761 }
762
763 return ret;
764
765 memerr:
766 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
767 goto err;
768
769}
7a18ecb2 770
b3c8dd4e 771static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
0f113f3e
MC		 772 UI_METHOD *ui_method, void *callback_data)
773{
774 CAPI_CTX *ctx;
775 CAPI_KEY *key;
776 EVP_PKEY *ret;
777 ctx = ENGINE_get_ex_data(eng, capi_idx);
b3c8dd4e 778
0f113f3e
MC		 779 if (!ctx) {
780 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
781 return NULL;
782 }
b3c8dd4e 783
0f113f3e 784 key = capi_find_key(ctx, key_id);
b3c8dd4e 785
0f113f3e
MC		 786 if (!key)
787 return NULL;
b3c8dd4e 788
0f113f3e 789 ret = capi_get_pkey(eng, key);
b3c8dd4e 790
0f113f3e
MC		 791 if (!ret)
792 capi_free_key(key);
793 return ret;
b3c8dd4e 794
0f113f3e 795}
b3c8dd4e 796
7a18ecb2
DSH		 797/* CryptoAPI RSA operations */
798
799int capi_rsa_priv_enc(int flen, const unsigned char *from,
0f113f3e
MC		 800 unsigned char *to, RSA *rsa, int padding)
801{
802 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
803 return -1;
804}
7a18ecb2
DSH		 805
806int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
0f113f3e
MC		 807 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
808{
809 ALG_ID alg;
810 HCRYPTHASH hash;
811 DWORD slen;
812 unsigned int i;
813 int ret = -1;
814 CAPI_KEY *capi_key;
815 CAPI_CTX *ctx;
816
817 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
818
819 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
820
821 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
822 if (!capi_key) {
823 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
824 return -1;
825 }
7a18ecb2 826/* Convert the signature type to a CryptoAPI algorithm ID */
0f113f3e
MC		 827 switch (dtype) {
828 case NID_sha256:
829 alg = CALG_SHA_256;
830 break;
831
832 case NID_sha384:
833 alg = CALG_SHA_384;
834 break;
835
836 case NID_sha512:
837 alg = CALG_SHA_512;
838 break;
839
840 case NID_sha1:
841 alg = CALG_SHA1;
842 break;
843
844 case NID_md5:
845 alg = CALG_MD5;
846 break;
847
848 case NID_md5_sha1:
849 alg = CALG_SSL3_SHAMD5;
850 break;
851 default:
852 {
853 char algstr[10];
854 BIO_snprintf(algstr, 10, "%lx", dtype);
855 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
856 ERR_add_error_data(2, "NID=0x", algstr);
857 return -1;
858 }
859 }
7a18ecb2
DSH		 860
861/* Create the hash object */
0f113f3e
MC		 862 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
863 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
864 capi_addlasterror();
865 return -1;
866 }
7a18ecb2
DSH		 867/* Set the hash value to the value passed */
868
0f113f3e
MC		 869 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
870 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
871 capi_addlasterror();
872 goto err;
873 }
7a18ecb2
DSH		 874
875/* Finally sign it */
0f113f3e
MC		 876 slen = RSA_size(rsa);
877 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
878 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
879 capi_addlasterror();
880 goto err;
881 } else {
882 ret = 1;
883 /* Inplace byte reversal of signature */
884 for (i = 0; i < slen / 2; i++) {
885 unsigned char c;
886 c = sigret[i];
887 sigret[i] = sigret[slen - i - 1];
888 sigret[slen - i - 1] = c;
889 }
890 *siglen = slen;
891 }
892
893 /* Now cleanup */
894
895 err:
896 CryptDestroyHash(hash);
897
898 return ret;
899}
7a18ecb2
DSH		 900
901int capi_rsa_priv_dec(int flen, const unsigned char *from,
0f113f3e
MC		 902 unsigned char *to, RSA *rsa, int padding)
903{
904 int i;
905 unsigned char *tmpbuf;
906 CAPI_KEY *capi_key;
907 CAPI_CTX *ctx;
908 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
909
910 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
911
912 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
913 if (!capi_key) {
914 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
915 return -1;
916 }
917
918 if (padding != RSA_PKCS1_PADDING) {
919 char errstr[10];
920 BIO_snprintf(errstr, 10, "%d", padding);
921 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
922 ERR_add_error_data(2, "padding=", errstr);
923 return -1;
924 }
925
926 /* Create temp reverse order version of input */
927 if (!(tmpbuf = OPENSSL_malloc(flen))) {
928 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
929 return -1;
930 }
931 for (i = 0; i < flen; i++)
932 tmpbuf[flen - i - 1] = from[i];
933
934 /* Finally decrypt it */
935 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen)) {
936 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
937 capi_addlasterror();
938 OPENSSL_free(tmpbuf);
939 return -1;
940 } else
941 memcpy(to, tmpbuf, flen);
942
943 OPENSSL_free(tmpbuf);
944
945 return flen;
946}
7a18ecb2
DSH		 947
948static int capi_rsa_free(RSA *rsa)
0f113f3e
MC		 949{
950 CAPI_KEY *capi_key;
951 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
952 capi_free_key(capi_key);
953 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
954 return 1;
955}
7a18ecb2
DSH		 956
957/* CryptoAPI DSA operations */
958
959static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
0f113f3e
MC		 960 DSA *dsa)
961{
962 HCRYPTHASH hash;
963 DWORD slen;
964 DSA_SIG *ret = NULL;
965 CAPI_KEY *capi_key;
966 CAPI_CTX *ctx;
967 unsigned char csigbuf[40];
968
969 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
970
971 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
972
973 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
974
975 if (!capi_key) {
976 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
977 return NULL;
978 }
979
980 if (dlen != 20) {
981 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
982 return NULL;
983 }
984
985 /* Create the hash object */
986 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
987 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
988 capi_addlasterror();
989 return NULL;
990 }
991
992 /* Set the hash value to the value passed */
993 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
994 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
995 capi_addlasterror();
996 goto err;
997 }
998
999 /* Finally sign it */
1000 slen = sizeof(csigbuf);
1001 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1002 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1003 capi_addlasterror();
1004 goto err;
1005 } else {
1006 ret = DSA_SIG_new();
1007 if (!ret)
1008 goto err;
1009 ret->r = BN_new();
1010 ret->s = BN_new();
1011 if (!ret->r || !ret->s)
1012 goto err;
1013 if (!lend_tobn(ret->r, csigbuf, 20)
1014 || !lend_tobn(ret->s, csigbuf + 20, 20)) {
1015 DSA_SIG_free(ret);
1016 ret = NULL;
1017 goto err;
1018 }
1019 }
1020
1021 /* Now cleanup */
1022
1023 err:
1024 OPENSSL_cleanse(csigbuf, 40);
1025 CryptDestroyHash(hash);
1026 return ret;
1027}
7a18ecb2
DSH		 1028
1029static int capi_dsa_free(DSA *dsa)
0f113f3e
MC		 1030{
1031 CAPI_KEY *capi_key;
1032 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1033 capi_free_key(capi_key);
1034 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1035 return 1;
1036}
1037
1038static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
1039 va_list argptr)
1040{
1041 BIO *out;
1042
1043 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1044 return;
1045 out = BIO_new_file(ctx->debug_file, "a+");
1046 if (out == NULL) {
1047 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1048 return;
1049 }
1050 BIO_vprintf(out, format, argptr);
1051 BIO_free(out);
1052}
1053
1054static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
1055{
1056 va_list args;
1057 va_start(args, format);
1058 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1059 va_end(args);
1060}
7a18ecb2
DSH		 1061
1062static void capi_addlasterror(void)
0f113f3e
MC		 1063{
1064 capi_adderror(GetLastError());
1065}
7a18ecb2
DSH		 1066
1067static void capi_adderror(DWORD err)
0f113f3e
MC		 1068{
1069 char errstr[10];
1070 BIO_snprintf(errstr, 10, "%lX", err);
1071 ERR_add_error_data(2, "Error code= 0x", errstr);
1072}
7a18ecb2 1073
cc4c2306 1074static char *wide_to_asc(LPCWSTR wstr)
0f113f3e
MC		 1075{
1076 char *str;
1077 int len_0, sz;
1078
1079 if (!wstr)
1080 return NULL;
1081 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1082 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1083 if (!sz) {
1084 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1085 return NULL;
1086 }
1087 str = OPENSSL_malloc(sz);
1088 if (!str) {
1089 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1090 return NULL;
1091 }
1092 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1093 OPENSSL_free(str);
1094 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1095 return NULL;
1096 }
1097 return str;
1098}
1099
1100static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1101 DWORD idx)
1102{
1103 DWORD len, err;
1104 LPTSTR name;
1105 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1106 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1107 err = GetLastError();
1108 if (err == ERROR_NO_MORE_ITEMS)
1109 return 2;
1110 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1111 capi_adderror(err);
1112 return 0;
1113 }
1114 name = OPENSSL_malloc(len);
1115 if (name == NULL) {
1116 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1117 return 0;
1118 }
1119 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1120 err = GetLastError();
1121 OPENSSL_free(name);
1122 if (err == ERROR_NO_MORE_ITEMS)
1123 return 2;
1124 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1125 capi_adderror(err);
1126 return 0;
1127 }
1128 if (sizeof(TCHAR) != sizeof(char)) {
1129 *pname = wide_to_asc((WCHAR *)name);
1130 OPENSSL_free(name);
1131 if (*pname == NULL)
1132 return 0;
1133 } else
1134 *pname = (char *)name;
1135 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1136 *ptype);
1137
1138 return 1;
1139}
1140
1141static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1142{
1143 DWORD idx, ptype;
1144 int ret;
1145 LPSTR provname = NULL;
1146 CAPI_trace(ctx, "capi_list_providers\n");
1147 BIO_printf(out, "Available CSPs:\n");
1148 for (idx = 0;; idx++) {
1149 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1150 if (ret == 2)
1151 break;
1152 if (ret == 0)
1153 break;
1154 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1155 OPENSSL_free(provname);
1156 }
1157 return 1;
1158}
1159
1160static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1161{
1162 int ret = 1;
1163 HCRYPTPROV hprov;
1164 DWORD err, idx, flags, buflen = 0, clen;
1165 LPSTR cname;
1166 LPTSTR cspname = NULL;
1167
1168 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1169 ctx->csptype);
1170 if (ctx->cspname && sizeof(TCHAR) != sizeof(char)) {
1171 if ((clen =
1172 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))) {
1173 cspname = alloca(clen * sizeof(WCHAR));
1174 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1175 clen);
1176 }
1177 if (!cspname) {
1178 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1179 capi_addlasterror();
1180 return 0;
1181 }
1182 } else
1183 cspname = (TCHAR *)ctx->cspname;
1184 if (!CryptAcquireContext
1185 (&hprov, NULL, cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1186 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1187 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1188 capi_addlasterror();
1189 return 0;
1190 }
1191 if (!CryptGetProvParam
1192 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1193 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1194 capi_addlasterror();
1195 CryptReleaseContext(hprov, 0);
1196 return 0;
1197 }
1198 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1199 if (buflen == 0)
1200 buflen = 1024;
1201 cname = OPENSSL_malloc(buflen);
1202 if (!cname) {
1203 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1204 goto err;
1205 }
1206
1207 for (idx = 0;; idx++) {
1208 clen = buflen;
1209 cname[0] = 0;
1210
1211 if (idx == 0)
1212 flags = CRYPT_FIRST;
1213 else
1214 flags = 0;
1215 if (!CryptGetProvParam
1216 (hprov, PP_ENUMCONTAINERS, (BYTE *) cname, &clen, flags)) {
1217 err = GetLastError();
1218 if (err == ERROR_NO_MORE_ITEMS)
1219 goto done;
1220 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1221 capi_adderror(err);
1222 goto err;
1223 }
1224 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1225 cname, clen, idx, flags);
1226 if (!cname[0] && (clen == buflen)) {
1227 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1228 goto done;
1229 }
1230 BIO_printf(out, "%d. %s\n", idx, cname);
1231 }
1232 err:
1233
1234 ret = 0;
1235
1236 done:
1237 if (cname)
1238 OPENSSL_free(cname);
1239 CryptReleaseContext(hprov, 0);
1240
1241 return ret;
1242}
1243
1244CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1245{
1246 DWORD len;
1247 CRYPT_KEY_PROV_INFO *pinfo;
1248
1249 if (!CertGetCertificateContextProperty
1250 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1251 return NULL;
1252 pinfo = OPENSSL_malloc(len);
1253 if (!pinfo) {
1254 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1255 return NULL;
1256 }
1257 if (!CertGetCertificateContextProperty
1258 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1259 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1260 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1261 capi_addlasterror();
1262 OPENSSL_free(pinfo);
1263 return NULL;
1264 }
1265 return pinfo;
1266}
1267
1268static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1269 CRYPT_KEY_PROV_INFO * pinfo)
1270{
1271 char *provname = NULL, *contname = NULL;
1272 if (!pinfo) {
1273 BIO_printf(out, " No Private Key\n");
1274 return;
1275 }
1276 provname = wide_to_asc(pinfo->pwszProvName);
1277 contname = wide_to_asc(pinfo->pwszContainerName);
1278 if (!provname || !contname)
1279 goto err;
1280
1281 BIO_printf(out, " Private Key Info:\n");
1282 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname,
1283 pinfo->dwProvType);
1284 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname,
1285 pinfo->dwKeySpec);
1286 err:
1287 if (provname)
1288 OPENSSL_free(provname);
1289 if (contname)
1290 OPENSSL_free(contname);
1291}
1292
1293char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1294{
1295 LPWSTR wfname;
1296 DWORD dlen;
1297
1298 CAPI_trace(ctx, "capi_cert_get_fname\n");
1299 if (!CertGetCertificateContextProperty
1300 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1301 return NULL;
1302 wfname = OPENSSL_malloc(dlen);
1303 if (wfname == NULL)
1304 return NULL;
1305 if (CertGetCertificateContextProperty
1306 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1307 char *fname = wide_to_asc(wfname);
1308 OPENSSL_free(wfname);
1309 return fname;
1310 }
1311 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1312 capi_addlasterror();
1313
1314 OPENSSL_free(wfname);
1315 return NULL;
1316}
1317
1318void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
1319{
1320 X509 *x;
1321 unsigned char *p;
1322 unsigned long flags = ctx->dump_flags;
1323 if (flags & CAPI_DMP_FNAME) {
1324 char *fname;
1325 fname = capi_cert_get_fname(ctx, cert);
1326 if (fname) {
1327 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1328 OPENSSL_free(fname);
1329 } else
1330 BIO_printf(out, " <No Friendly Name>\n");
1331 }
1332
1333 p = cert->pbCertEncoded;
1334 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1335 if (!x)
1336 BIO_printf(out, " <Can't parse certificate>\n");
1337 if (flags & CAPI_DMP_SUMMARY) {
1338 BIO_printf(out, " Subject: ");
1339 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1340 BIO_printf(out, "\n Issuer: ");
1341 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1342 BIO_printf(out, "\n");
1343 }
1344 if (flags & CAPI_DMP_FULL)
1345 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1346
1347 if (flags & CAPI_DMP_PKEYINFO) {
1348 CRYPT_KEY_PROV_INFO *pinfo;
1349 pinfo = capi_get_prov_info(ctx, cert);
1350 capi_dump_prov_info(ctx, out, pinfo);
1351 if (pinfo)
1352 OPENSSL_free(pinfo);
1353 }
1354
1355 if (flags & CAPI_DMP_PEM)
1356 PEM_write_bio_X509(out, x);
1357 X509_free(x);
1358}
1359
1360HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
1361{
1362 HCERTSTORE hstore;
1363
1364 if (!storename)
1365 storename = ctx->storename;
1366 if (!storename)
1367 storename = "MY";
1368 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1369
1370 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1371 ctx->store_flags, storename);
1372 if (!hstore) {
1373 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1374 capi_addlasterror();
1375 }
1376 return hstore;
1377}
1378
1379int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1380{
1381 char *storename;
1382 int idx;
1383 int ret = 1;
1384 HCERTSTORE hstore;
1385 PCCERT_CONTEXT cert = NULL;
1386
1387 storename = ctx->storename;
1388 if (!storename)
1389 storename = "MY";
1390 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1391
1392 hstore = capi_open_store(ctx, storename);
1393 if (!hstore)
1394 return 0;
1395 if (id) {
1396 cert = capi_find_cert(ctx, id, hstore);
1397 if (!cert) {
1398 ret = 0;
1399 goto err;
1400 }
1401 capi_dump_cert(ctx, out, cert);
1402 CertFreeCertificateContext(cert);
1403 } else {
1404 for (idx = 0;; idx++) {
1405 cert = CertEnumCertificatesInStore(hstore, cert);
1406 if (!cert)
1407 break;
1408 BIO_printf(out, "Certificate %d\n", idx);
1409 capi_dump_cert(ctx, out, cert);
1410 }
1411 }
1412 err:
1413 CertCloseStore(hstore, 0);
1414 return ret;
1415}
1416
1417static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1418 HCERTSTORE hstore)
1419{
1420 PCCERT_CONTEXT cert = NULL;
1421 char *fname = NULL;
1422 int match;
1423 switch (ctx->lookup_method) {
1424 case CAPI_LU_SUBSTR:
1425 return CertFindCertificateInStore(hstore,
1426 X509_ASN_ENCODING, 0,
1427 CERT_FIND_SUBJECT_STR_A, id, NULL);
1428 case CAPI_LU_FNAME:
1429 for (;;) {
1430 cert = CertEnumCertificatesInStore(hstore, cert);
1431 if (!cert)
1432 return NULL;
1433 fname = capi_cert_get_fname(ctx, cert);
1434 if (fname) {
1435 if (strcmp(fname, id))
1436 match = 0;
1437 else
1438 match = 1;
1439 OPENSSL_free(fname);
1440 if (match)
1441 return cert;
1442 }
1443 }
1444 default:
1445 return NULL;
1446 }
1447}
1448
1449static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const TCHAR *contname,
1450 TCHAR *provname, DWORD ptype, DWORD keyspec)
1451{
1452 CAPI_KEY *key;
1453 DWORD dwFlags = 0;
1454 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1455 if (key == NULL)
1456 return NULL;
1457 if (sizeof(TCHAR) == sizeof(char))
1458 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1459 contname, provname, ptype);
1460 else if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
1461 /* above 'if' is optimization to minimize malloc-ations */
1462 char *_contname = wide_to_asc((WCHAR *)contname);
1463 char *_provname = wide_to_asc((WCHAR *)provname);
1464
1465 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1466 _contname, _provname, ptype);
1467 if (_provname)
1468 OPENSSL_free(_provname);
1469 if (_contname)
1470 OPENSSL_free(_contname);
1471 }
1472 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1473 dwFlags = CRYPT_MACHINE_KEYSET;
1474 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, dwFlags)) {
1475 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1476 capi_addlasterror();
1477 goto err;
1478 }
1479 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1480 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1481 capi_addlasterror();
1482 CryptReleaseContext(key->hprov, 0);
1483 goto err;
1484 }
1485 key->keyspec = keyspec;
1486 key->pcert = NULL;
1487 return key;
1488
1489 err:
1490 OPENSSL_free(key);
1491 return NULL;
1492}
1493
1494static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1495{
1496 CAPI_KEY *key = NULL;
1497 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1498 char *provname = NULL, *contname = NULL;
1499 pinfo = capi_get_prov_info(ctx, cert);
1500 if (!pinfo)
1501 goto err;
1502 if (sizeof(TCHAR) != sizeof(char))
1503 key = capi_get_key(ctx, (TCHAR *)pinfo->pwszContainerName,
1504 (TCHAR *)pinfo->pwszProvName,
1505 pinfo->dwProvType, pinfo->dwKeySpec);
1506 else {
1507 provname = wide_to_asc(pinfo->pwszProvName);
1508 contname = wide_to_asc(pinfo->pwszContainerName);
1509 if (!provname || !contname)
1510 goto err;
1511 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1512 pinfo->dwProvType, pinfo->dwKeySpec);
1513 }
1514
1515 err:
1516 if (pinfo)
1517 OPENSSL_free(pinfo);
1518 if (provname)
1519 OPENSSL_free(provname);
1520 if (contname)
1521 OPENSSL_free(contname);
1522 return key;
1523}
1524
1525CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1526{
1527 PCCERT_CONTEXT cert;
1528 HCERTSTORE hstore;
1529 CAPI_KEY *key = NULL;
1530 switch (ctx->lookup_method) {
1531 case CAPI_LU_SUBSTR:
1532 case CAPI_LU_FNAME:
1533 hstore = capi_open_store(ctx, NULL);
1534 if (!hstore)
1535 return NULL;
1536 cert = capi_find_cert(ctx, id, hstore);
1537 if (cert) {
1538 key = capi_get_cert_key(ctx, cert);
1539 CertFreeCertificateContext(cert);
1540 }
1541 CertCloseStore(hstore, 0);
1542 break;
1543
1544 case CAPI_LU_CONTNAME:
1545 if (sizeof(TCHAR) != sizeof(char)) {
1546 WCHAR *contname, *provname;
1547 DWORD len;
1548
1549 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1550 (contname = alloca(len * sizeof(WCHAR)),
1551 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1552 (len =
1553 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))
1554 && (provname =
1555 alloca(len * sizeof(WCHAR)), MultiByteToWideChar(CP_ACP,
1556 0,
1557 ctx->cspname,
1558 -1,
1559 provname,
1560 len)))
1561 key =
1562 capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1563 ctx->csptype, ctx->keytype);
1564 } else
1565 key = capi_get_key(ctx, (TCHAR *)id,
1566 (TCHAR *)ctx->cspname,
1567 ctx->csptype, ctx->keytype);
1568 break;
1569 }
1570
1571 return key;
1572}
1573
1574void capi_free_key(CAPI_KEY * key)
1575{
1576 if (!key)
1577 return;
1578 CryptDestroyKey(key->key);
1579 CryptReleaseContext(key->hprov, 0);
1580 if (key->pcert)
1581 CertFreeCertificateContext(key->pcert);
1582 OPENSSL_free(key);
1583}
7a18ecb2
DSH		 1584
1585/* Initialize a CAPI_CTX structure */
1586
1587static CAPI_CTX *capi_ctx_new()
0f113f3e
MC		 1588{
1589 CAPI_CTX *ctx;
1590 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1591 if (!ctx) {
1592 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1593 return NULL;
1594 }
1595 ctx->cspname = NULL;
1596 ctx->csptype = PROV_RSA_FULL;
1597 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1598 ctx->keytype = AT_KEYEXCHANGE;
1599 ctx->storename = NULL;
1600 ctx->ssl_client_store = NULL;
1601 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1602 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1603 ctx->lookup_method = CAPI_LU_SUBSTR;
1604 ctx->debug_level = 0;
1605 ctx->debug_file = NULL;
1606 ctx->client_cert_select = cert_select_simple;
1607 return ctx;
1608}
1609
1610static void capi_ctx_free(CAPI_CTX * ctx)
1611{
1612 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1613 if (!ctx)
1614 return;
1615 if (ctx->cspname)
1616 OPENSSL_free(ctx->cspname);
1617 if (ctx->debug_file)
1618 OPENSSL_free(ctx->debug_file);
1619 if (ctx->storename)
1620 OPENSSL_free(ctx->storename);
1621 if (ctx->ssl_client_store)
1622 OPENSSL_free(ctx->ssl_client_store);
1623 OPENSSL_free(ctx);
1624}
1625
1626static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1627 int check)
1628{
1629 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1630 if (check) {
1631 HCRYPTPROV hprov;
1632 LPTSTR name = NULL;
1633
1634 if (sizeof(TCHAR) != sizeof(char)) {
1635 DWORD len;
1636 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1637 name = alloca(len * sizeof(WCHAR));
1638 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1639 }
1640 } else
1641 name = (TCHAR *)pname;
1642
1643 if (!name || !CryptAcquireContext(&hprov, NULL, name, type,
1644 CRYPT_VERIFYCONTEXT)) {
1645 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1646 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1647 capi_addlasterror();
1648 return 0;
1649 }
1650 CryptReleaseContext(hprov, 0);
1651 }
1652 if (ctx->cspname)
1653 OPENSSL_free(ctx->cspname);
1654 ctx->cspname = BUF_strdup(pname);
1655 ctx->csptype = type;
1656 return 1;
1657}
1658
1659static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1660{
1661 LPSTR pname;
1662 DWORD type;
1663 int res;
1664 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1665 return 0;
1666 res = capi_ctx_set_provname(ctx, pname, type, 0);
1667 OPENSSL_free(pname);
1668 return res;
1669}
7a18ecb2 1670
b3c8dd4e 1671static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
0f113f3e
MC		 1672{
1673 int i;
1674 X509_NAME *nm;
1675 /* Special case: empty list: match anything */
1676 if (sk_X509_NAME_num(ca_dn) <= 0)
1677 return 1;
1678 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1679 nm = sk_X509_NAME_value(ca_dn, i);
1680 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1681 return 1;
1682 }
1683 return 0;
1684}
7d537d4f 1685
b3c8dd4e 1686static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
0f113f3e
MC		 1687 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1688 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1689 UI_METHOD *ui_method,
1690 void *callback_data)
1691{
1692 STACK_OF(X509) *certs = NULL;
1693 X509 *x;
1694 char *storename;
1695 const char *p;
1696 int i, client_cert_idx;
1697 HCERTSTORE hstore;
1698 PCCERT_CONTEXT cert = NULL, excert = NULL;
1699 CAPI_CTX *ctx;
1700 CAPI_KEY *key;
1701 ctx = ENGINE_get_ex_data(e, capi_idx);
1702
1703 *pcert = NULL;
1704 *pkey = NULL;
1705
1706 storename = ctx->ssl_client_store;
1707 if (!storename)
1708 storename = "MY";
1709
1710 hstore = capi_open_store(ctx, storename);
1711 if (!hstore)
1712 return 0;
1713 /* Enumerate all certificates collect any matches */
1714 for (i = 0;; i++) {
1715 cert = CertEnumCertificatesInStore(hstore, cert);
1716 if (!cert)
1717 break;
1718 p = cert->pbCertEncoded;
1719 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1720 if (!x) {
1721 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1722 continue;
1723 }
1724 if (cert_issuer_match(ca_dn, x)
1725 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1726 key = capi_get_cert_key(ctx, cert);
1727 if (!key) {
1728 X509_free(x);
1729 continue;
1730 }
1731 /*
1732 * Match found: attach extra data to it so we can retrieve the
1733 * key later.
1734 */
1735 excert = CertDuplicateCertificateContext(cert);
1736 key->pcert = excert;
1737 X509_set_ex_data(x, cert_capi_idx, key);
1738
1739 if (!certs)
1740 certs = sk_X509_new_null();
1741
1742 sk_X509_push(certs, x);
1743 } else
1744 X509_free(x);
1745
1746 }
1747
1748 if (cert)
1749 CertFreeCertificateContext(cert);
1750 if (hstore)
1751 CertCloseStore(hstore, 0);
1752
1753 if (!certs)
1754 return 0;
1755
1756 /* Select the appropriate certificate */
1757
1758 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1759
1760 /* Set the selected certificate and free the rest */
1761
1762 for (i = 0; i < sk_X509_num(certs); i++) {
1763 x = sk_X509_value(certs, i);
1764 if (i == client_cert_idx)
1765 *pcert = x;
1766 else {
1767 key = X509_get_ex_data(x, cert_capi_idx);
1768 capi_free_key(key);
1769 X509_free(x);
1770 }
1771 }
1772
1773 sk_X509_free(certs);
1774
1775 if (!*pcert)
1776 return 0;
1777
1778 /* Setup key for selected certificate */
1779
1780 key = X509_get_ex_data(*pcert, cert_capi_idx);
1781 *pkey = capi_get_pkey(e, key);
1782 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1783
1784 return 1;
1785
1786}
e0f7b872
DSH		 1787
1788/* Simple client cert selection function: always select first */
1789
1cd504e7 1790static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1791{
1792 return 0;
1793}
e0f7b872 1794
0f113f3e 1795# ifdef OPENSSL_CAPIENG_DIALOG
e0f7b872 1796
0f113f3e
MC		 1797/*
1798 * More complex cert selection function, using standard function
e0f7b872
DSH		 1799 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1800 */
1801
0f113f3e
MC		 1802/*
1803 * Definitions which are in cryptuiapi.h but this is not present in older
a0f3679b
DSH		 1804 * versions of headers.
1805 */
1806
0f113f3e
MC		 1807# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1808# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1809# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1810# endif
e0f7b872 1811
0f113f3e
MC		 1812# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1813# define dlg_prompt L"Select a certificate to use for authentication"
1814# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1815 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1381bf90 1816
1cd504e7 1817static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1818{
1819 X509 *x;
1820 HCERTSTORE dstore;
1821 PCCERT_CONTEXT cert;
1822 CAPI_CTX *ctx;
1823 CAPI_KEY *key;
1824 HWND hwnd;
1825 int i, idx = -1;
1826 if (sk_X509_num(certs) == 1)
1827 return 0;
1828 ctx = ENGINE_get_ex_data(e, capi_idx);
1829 /* Create an in memory store of certificates */
1830 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1831 CERT_STORE_CREATE_NEW_FLAG, NULL);
1832 if (!dstore) {
1833 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1834 capi_addlasterror();
1835 goto err;
1836 }
1837 /* Add all certificates to store */
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
1842 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1843 CERT_STORE_ADD_NEW, NULL)) {
1844 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1845 capi_addlasterror();
1846 goto err;
1847 }
1848
1849 }
1850 hwnd = GetForegroundWindow();
1851 if (!hwnd)
1852 hwnd = GetActiveWindow();
1853 if (!hwnd && ctx->getconswindow)
1854 hwnd = ctx->getconswindow();
1855 /* Call dialog to select one */
1856 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1857 dlg_columns, 0, NULL);
1858
1859 /* Find matching cert from list */
1860 if (cert) {
1861 for (i = 0; i < sk_X509_num(certs); i++) {
1862 x = sk_X509_value(certs, i);
1863 key = X509_get_ex_data(x, cert_capi_idx);
1864 if (CertCompareCertificate
1865 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1866 key->pcert->pCertInfo)) {
1867 idx = i;
1868 break;
1869 }
1870 }
1871 }
1872
1873 err:
1874 if (dstore)
1875 CertCloseStore(dstore, 0);
1876 return idx;
1877
1878}
1879# endif
1880
1881#else /* !__COMPILE_CAPIENG */
1882# include <openssl/engine.h>
1883# ifndef OPENSSL_NO_DYNAMIC_ENGINE
492279f6 1884OPENSSL_EXPORT
0f113f3e 1885 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
eb164d0b 1886OPENSSL_EXPORT
0f113f3e
MC		 1887 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1888{
1889 return 0;
1890}
1891
492279f6 1892IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e
MC		 1893# else
1894void ENGINE_load_capi(void)
1895{
1896}
1897# endif
7a18ecb2 1898#endif
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