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etc/services - sync with NetBSD-8
[minix.git] / crypto / external / bsd / openssl / dist / engines / e_capi.c
blob43dd3106c1cbdea85b8121525bf113c8fe99eb73
1 /* engines/e_capi.c */
2 /*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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
14 * notice, this list of conditions and the following disclaimer.
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
55 #include <stdio.h>
56 #include <string.h>
57 #include <openssl/crypto.h>
58 #include <openssl/buffer.h>
59 #include <openssl/bn.h>
60
61 #ifdef OPENSSL_SYS_WIN32
62 # ifndef OPENSSL_NO_CAPIENG
63
64 # include <openssl/rsa.h>
65
66 # include <windows.h>
67
68 # ifndef _WIN32_WINNT
69 # define _WIN32_WINNT 0x0400
70 # endif
71
72 # include <wincrypt.h>
73
74 /*
75 * This module uses several "new" interfaces, among which is
76 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
77 * one of possible values you can pass to function in question. By
78 * checking if it's defined we can see if wincrypt.h and accompanying
79 * crypt32.lib are in shape. The native MingW32 headers up to and
80 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
81 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
82 * so we check for these too and avoid compiling.
83 * Yes, it's rather "weak" test and if compilation fails,
84 * then re-configure with -DOPENSSL_NO_CAPIENG.
85 */
86 # if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
87 defined(CERT_STORE_PROV_SYSTEM_A) && \
88 defined(CERT_STORE_READONLY_FLAG)
89 # define __COMPILE_CAPIENG
90 # endif /* CERT_KEY_PROV_INFO_PROP_ID */
91 # endif /* OPENSSL_NO_CAPIENG */
92 #endif /* OPENSSL_SYS_WIN32 */
93
94 #ifdef __COMPILE_CAPIENG
95
96 # undef X509_EXTENSIONS
97 # undef X509_CERT_PAIR
98
99 /* Definitions which may be missing from earlier version of headers */
100 # ifndef CERT_STORE_OPEN_EXISTING_FLAG
101 # define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
102 # endif
103
104 # ifndef CERT_STORE_CREATE_NEW_FLAG
105 # define CERT_STORE_CREATE_NEW_FLAG 0x00002000
106 # endif
107
108 # ifndef CERT_SYSTEM_STORE_CURRENT_USER
109 # define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
110 # endif
111
112 # include <openssl/engine.h>
113 # include <openssl/pem.h>
114 # include <openssl/x509v3.h>
115
116 # include "e_capi_err.h"
117 # include "e_capi_err.c"
118
119 static const char *engine_capi_id = "capi";
120 static const char *engine_capi_name = "CryptoAPI ENGINE";
121
122 typedef struct CAPI_CTX_st CAPI_CTX;
123 typedef struct CAPI_KEY_st CAPI_KEY;
124
125 static void capi_addlasterror(void);
126 static void capi_adderror(DWORD err);
127
128 static void CAPI_trace(CAPI_CTX * ctx, char *format, ...);
129
130 static int capi_list_providers(CAPI_CTX * ctx, BIO *out);
131 static int capi_list_containers(CAPI_CTX * ctx, BIO *out);
132 int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *storename);
133 void capi_free_key(CAPI_KEY * key);
134
135 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
136 HCERTSTORE hstore);
137
138 CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id);
139
140 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
141 UI_METHOD *ui_method, void *callback_data);
142 static int capi_rsa_sign(int dtype, const unsigned char *m,
143 unsigned int m_len, unsigned char *sigret,
144 unsigned int *siglen, const RSA *rsa);
145 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
146 unsigned char *to, RSA *rsa, int padding);
147 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
148 unsigned char *to, RSA *rsa, int padding);
149 static int capi_rsa_free(RSA *rsa);
150
151 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
152 DSA *dsa);
153 static int capi_dsa_free(DSA *dsa);
154
155 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
156 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
157 EVP_PKEY **pkey, STACK_OF(X509) **pother,
158 UI_METHOD *ui_method,
159 void *callback_data);
160
161 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
162 # ifdef OPENSSL_CAPIENG_DIALOG
163 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
164 # endif
165
166 typedef PCCERT_CONTEXT(WINAPI *CERTDLG) (HCERTSTORE, HWND, LPCWSTR,
167 LPCWSTR, DWORD, DWORD, void *);
168 typedef HWND(WINAPI *GETCONSWIN) (void);
169
170 /*
171 * This structure contains CAPI ENGINE specific data: it contains various
172 * global options and affects how other functions behave.
173 */
174
175 # define CAPI_DBG_TRACE 2
176 # define CAPI_DBG_ERROR 1
177
178 struct CAPI_CTX_st {
179 int debug_level;
180 char *debug_file;
181 /* Parameters to use for container lookup */
182 DWORD keytype;
183 LPSTR cspname;
184 DWORD csptype;
185 /* Certificate store name to use */
186 LPSTR storename;
187 LPSTR ssl_client_store;
188 /* System store flags */
189 DWORD store_flags;
190 /* Lookup string meanings in load_private_key */
191 /* Substring of subject: uses "storename" */
192 # define CAPI_LU_SUBSTR 1
193 /* Friendly name: uses storename */
194 # define CAPI_LU_FNAME 2
195 /* Container name: uses cspname, keytype */
196 # define CAPI_LU_CONTNAME 3
197 int lookup_method;
198 /* Info to dump with dumpcerts option */
199 /* Issuer and serial name strings */
200 # define CAPI_DMP_SUMMARY 0x1
201 /* Friendly name */
202 # define CAPI_DMP_FNAME 0x2
203 /* Full X509_print dump */
204 # define CAPI_DMP_FULL 0x4
205 /* Dump PEM format certificate */
206 # define CAPI_DMP_PEM 0x8
207 /* Dump pseudo key (if possible) */
208 # define CAPI_DMP_PSKEY 0x10
209 /* Dump key info (if possible) */
210 # define CAPI_DMP_PKEYINFO 0x20
211 DWORD dump_flags;
212 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
213 CERTDLG certselectdlg;
214 GETCONSWIN getconswindow;
215 };
216
217 static CAPI_CTX *capi_ctx_new();
218 static void capi_ctx_free(CAPI_CTX * ctx);
219 static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
220 int check);
221 static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx);
222
223 # define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
224 # define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
225 # define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
226 # define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
227 # define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
228 # define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
229 # define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
230 # define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
231 # define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
232 # define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
233 # define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
234 # define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
235 # define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
236 # define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
237
238 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
239 {CAPI_CMD_LIST_CERTS,
240 "list_certs",
241 "List all certificates in store",
242 ENGINE_CMD_FLAG_NO_INPUT},
243 {CAPI_CMD_LOOKUP_CERT,
244 "lookup_cert",
245 "Lookup and output certificates",
246 ENGINE_CMD_FLAG_STRING},
247 {CAPI_CMD_DEBUG_LEVEL,
248 "debug_level",
249 "debug level (1=errors, 2=trace)",
250 ENGINE_CMD_FLAG_NUMERIC},
251 {CAPI_CMD_DEBUG_FILE,
252 "debug_file",
253 "debugging filename)",
254 ENGINE_CMD_FLAG_STRING},
255 {CAPI_CMD_KEYTYPE,
256 "key_type",
257 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
258 ENGINE_CMD_FLAG_NUMERIC},
259 {CAPI_CMD_LIST_CSPS,
260 "list_csps",
261 "List all CSPs",
262 ENGINE_CMD_FLAG_NO_INPUT},
263 {CAPI_CMD_SET_CSP_IDX,
264 "csp_idx",
265 "Set CSP by index",
266 ENGINE_CMD_FLAG_NUMERIC},
267 {CAPI_CMD_SET_CSP_NAME,
268 "csp_name",
269 "Set CSP name, (default CSP used if not specified)",
270 ENGINE_CMD_FLAG_STRING},
271 {CAPI_CMD_SET_CSP_TYPE,
272 "csp_type",
273 "Set CSP type, (default RSA_PROV_FULL)",
274 ENGINE_CMD_FLAG_NUMERIC},
275 {CAPI_CMD_LIST_CONTAINERS,
276 "list_containers",
277 "list container names",
278 ENGINE_CMD_FLAG_NO_INPUT},
279 {CAPI_CMD_LIST_OPTIONS,
280 "list_options",
281 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
282 "32=private key info)",
283 ENGINE_CMD_FLAG_NUMERIC},
284 {CAPI_CMD_LOOKUP_METHOD,
285 "lookup_method",
286 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
287 ENGINE_CMD_FLAG_NUMERIC},
288 {CAPI_CMD_STORE_NAME,
289 "store_name",
290 "certificate store name, default \"MY\"",
291 ENGINE_CMD_FLAG_STRING},
292 {CAPI_CMD_STORE_FLAGS,
293 "store_flags",
294 "Certificate store flags: 1 = system store",
295 ENGINE_CMD_FLAG_NUMERIC},
296
297 {0, NULL, NULL, 0}
298 };
299
300 static int capi_idx = -1;
301 static int rsa_capi_idx = -1;
302 static int dsa_capi_idx = -1;
303 static int cert_capi_idx = -1;
304
305 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
306 {
307 int ret = 1;
308 CAPI_CTX *ctx;
309 BIO *out;
310 if (capi_idx == -1) {
311 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
312 return 0;
313 }
314 ctx = ENGINE_get_ex_data(e, capi_idx);
315 out = BIO_new_fp(stdout, BIO_NOCLOSE);
316 switch (cmd) {
317 case CAPI_CMD_LIST_CSPS:
318 ret = capi_list_providers(ctx, out);
319 break;
320
321 case CAPI_CMD_LIST_CERTS:
322 ret = capi_list_certs(ctx, out, NULL);
323 break;
324
325 case CAPI_CMD_LOOKUP_CERT:
326 ret = capi_list_certs(ctx, out, p);
327 break;
328
329 case CAPI_CMD_LIST_CONTAINERS:
330 ret = capi_list_containers(ctx, out);
331 break;
332
333 case CAPI_CMD_STORE_NAME:
334 if (ctx->storename)
335 OPENSSL_free(ctx->storename);
336 ctx->storename = BUF_strdup(p);
337 CAPI_trace(ctx, "Setting store name to %s\n", p);
338 break;
339
340 case CAPI_CMD_STORE_FLAGS:
341 if (i & 1) {
342 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
343 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
344 } else {
345 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
346 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
347 }
348 CAPI_trace(ctx, "Setting flags to %d\n", i);
349 break;
350
351 case CAPI_CMD_DEBUG_LEVEL:
352 ctx->debug_level = (int)i;
353 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
354 break;
355
356 case CAPI_CMD_DEBUG_FILE:
357 ctx->debug_file = BUF_strdup(p);
358 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
359 break;
360
361 case CAPI_CMD_KEYTYPE:
362 ctx->keytype = i;
363 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
364 break;
365
366 case CAPI_CMD_SET_CSP_IDX:
367 ret = capi_ctx_set_provname_idx(ctx, i);
368 break;
369
370 case CAPI_CMD_LIST_OPTIONS:
371 ctx->dump_flags = i;
372 break;
373
374 case CAPI_CMD_LOOKUP_METHOD:
375 if (i < 1 || i > 3) {
376 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
377 return 0;
378 }
379 ctx->lookup_method = i;
380 break;
381
382 case CAPI_CMD_SET_CSP_NAME:
383 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
384 break;
385
386 case CAPI_CMD_SET_CSP_TYPE:
387 ctx->csptype = i;
388 break;
389
390 default:
391 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
392 ret = 0;
393 }
394
395 BIO_free(out);
396 return ret;
397
398 }
399
400 static RSA_METHOD capi_rsa_method = {
401 "CryptoAPI RSA method",
402 0, /* pub_enc */
403 0, /* pub_dec */
404 capi_rsa_priv_enc, /* priv_enc */
405 capi_rsa_priv_dec, /* priv_dec */
406 0, /* rsa_mod_exp */
407 0, /* bn_mod_exp */
408 0, /* init */
409 capi_rsa_free, /* finish */
410 RSA_FLAG_SIGN_VER, /* flags */
411 NULL, /* app_data */
412 capi_rsa_sign, /* rsa_sign */
413 0 /* rsa_verify */
414 };
415
416 static DSA_METHOD capi_dsa_method = {
417 "CryptoAPI DSA method",
418 capi_dsa_do_sign, /* dsa_do_sign */
419 0, /* dsa_sign_setup */
420 0, /* dsa_do_verify */
421 0, /* dsa_mod_exp */
422 0, /* bn_mod_exp */
423 0, /* init */
424 capi_dsa_free, /* finish */
425 0, /* flags */
426 NULL, /* app_data */
427 0, /* dsa_paramgen */
428 0 /* dsa_keygen */
429 };
430
431 static int capi_init(ENGINE *e)
432 {
433 CAPI_CTX *ctx;
434 const RSA_METHOD *ossl_rsa_meth;
435 const DSA_METHOD *ossl_dsa_meth;
436
437 if (capi_idx < 0) {
438 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
439 if (capi_idx < 0)
440 goto memerr;
441
442 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
443
444 /* Setup RSA_METHOD */
445 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
446 ossl_rsa_meth = RSA_PKCS1_SSLeay();
447 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
448 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
449 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
450 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
451
452 /* Setup DSA Method */
453 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
454 ossl_dsa_meth = DSA_OpenSSL();
455 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
456 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
457 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
458 }
459
460 ctx = capi_ctx_new();
461 if (!ctx)
462 goto memerr;
463
464 ENGINE_set_ex_data(e, capi_idx, ctx);
465
466 # ifdef OPENSSL_CAPIENG_DIALOG
467 {
468 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
469 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
470 if (cryptui)
471 ctx->certselectdlg =
472 (CERTDLG) GetProcAddress(cryptui,
473 "CryptUIDlgSelectCertificateFromStore");
474 if (kernel)
475 ctx->getconswindow =
476 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
477 if (cryptui && !OPENSSL_isservice())
478 ctx->client_cert_select = cert_select_dialog;
479 }
480 # endif
481
482 return 1;
483
484 memerr:
485 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
486 return 0;
487
488 return 1;
489 }
490
491 static int capi_destroy(ENGINE *e)
492 {
493 ERR_unload_CAPI_strings();
494 return 1;
495 }
496
497 static int capi_finish(ENGINE *e)
498 {
499 CAPI_CTX *ctx;
500 ctx = ENGINE_get_ex_data(e, capi_idx);
501 capi_ctx_free(ctx);
502 ENGINE_set_ex_data(e, capi_idx, NULL);
503 return 1;
504 }
505
506 /*
507 * CryptoAPI key application data. This contains a handle to the private key
508 * container (for sign operations) and a handle to the key (for decrypt
509 * operations).
510 */
511
512 struct CAPI_KEY_st {
513 /* Associated certificate context (if any) */
514 PCCERT_CONTEXT pcert;
515 HCRYPTPROV hprov;
516 HCRYPTKEY key;
517 DWORD keyspec;
518 };
519
520 static int bind_capi(ENGINE *e)
521 {
522 if (!ENGINE_set_id(e, engine_capi_id)
523 || !ENGINE_set_name(e, engine_capi_name)
524 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
525 || !ENGINE_set_init_function(e, capi_init)
526 || !ENGINE_set_finish_function(e, capi_finish)
527 || !ENGINE_set_destroy_function(e, capi_destroy)
528 || !ENGINE_set_RSA(e, &capi_rsa_method)
529 || !ENGINE_set_DSA(e, &capi_dsa_method)
530 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
531 || !ENGINE_set_load_ssl_client_cert_function(e,
532 capi_load_ssl_client_cert)
533 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
534 || !ENGINE_set_ctrl_function(e, capi_ctrl))
535 return 0;
536 ERR_load_CAPI_strings();
537
538 return 1;
539
540 }
541
542 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
543 static int bind_helper(ENGINE *e, const char *id)
544 {
545 if (id && (strcmp(id, engine_capi_id) != 0))
546 return 0;
547 if (!bind_capi(e))
548 return 0;
549 return 1;
550 }
551
552 IMPLEMENT_DYNAMIC_CHECK_FN()
553 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
554 # else
555 static ENGINE *engine_capi(void)
556 {
557 ENGINE *ret = ENGINE_new();
558 if (!ret)
559 return NULL;
560 if (!bind_capi(ret)) {
561 ENGINE_free(ret);
562 return NULL;
563 }
564 return ret;
565 }
566
567 void ENGINE_load_capi(void)
568 {
569 /* Copied from eng_[openssl|dyn].c */
570 ENGINE *toadd = engine_capi();
571 if (!toadd)
572 return;
573 ENGINE_add(toadd);
574 ENGINE_free(toadd);
575 ERR_clear_error();
576 }
577 # endif
578
579 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
580 {
581 int i;
582 /*
583 * Reverse buffer in place: since this is a keyblob structure that will
584 * be freed up after conversion anyway it doesn't matter if we change
585 * it.
586 */
587 for (i = 0; i < binlen / 2; i++) {
588 unsigned char c;
589 c = bin[i];
590 bin[i] = bin[binlen - i - 1];
591 bin[binlen - i - 1] = c;
592 }
593
594 if (!BN_bin2bn(bin, binlen, bn))
595 return 0;
596 return 1;
597 }
598
599 /* Given a CAPI_KEY get an EVP_PKEY structure */
600
601 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY * key)
602 {
603 unsigned char *pubkey = NULL;
604 DWORD len;
605 BLOBHEADER *bh;
606 RSA *rkey = NULL;
607 DSA *dkey = NULL;
608 EVP_PKEY *ret = NULL;
609 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
610 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
611 capi_addlasterror();
612 return NULL;
613 }
614
615 pubkey = OPENSSL_malloc(len);
616
617 if (!pubkey)
618 goto memerr;
619
620 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
621 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
622 capi_addlasterror();
623 goto err;
624 }
625
626 bh = (BLOBHEADER *) pubkey;
627 if (bh->bType != PUBLICKEYBLOB) {
628 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
629 goto err;
630 }
631 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
632 RSAPUBKEY *rp;
633 DWORD rsa_modlen;
634 unsigned char *rsa_modulus;
635 rp = (RSAPUBKEY *) (bh + 1);
636 if (rp->magic != 0x31415352) {
637 char magstr[10];
638 BIO_snprintf(magstr, 10, "%lx", rp->magic);
639 CAPIerr(CAPI_F_CAPI_GET_PKEY,
640 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
641 ERR_add_error_data(2, "magic=0x", magstr);
642 goto err;
643 }
644 rsa_modulus = (unsigned char *)(rp + 1);
645 rkey = RSA_new_method(eng);
646 if (!rkey)
647 goto memerr;
648
649 rkey->e = BN_new();
650 rkey->n = BN_new();
651
652 if (!rkey->e || !rkey->n)
653 goto memerr;
654
655 if (!BN_set_word(rkey->e, rp->pubexp))
656 goto memerr;
657
658 rsa_modlen = rp->bitlen / 8;
659 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
660 goto memerr;
661
662 RSA_set_ex_data(rkey, rsa_capi_idx, key);
663
664 if (!(ret = EVP_PKEY_new()))
665 goto memerr;
666
667 EVP_PKEY_assign_RSA(ret, rkey);
668 rkey = NULL;
669
670 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
671 DSSPUBKEY *dp;
672 DWORD dsa_plen;
673 unsigned char *btmp;
674 dp = (DSSPUBKEY *) (bh + 1);
675 if (dp->magic != 0x31535344) {
676 char magstr[10];
677 BIO_snprintf(magstr, 10, "%lx", dp->magic);
678 CAPIerr(CAPI_F_CAPI_GET_PKEY,
679 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
680 ERR_add_error_data(2, "magic=0x", magstr);
681 goto err;
682 }
683 dsa_plen = dp->bitlen / 8;
684 btmp = (unsigned char *)(dp + 1);
685 dkey = DSA_new_method(eng);
686 if (!dkey)
687 goto memerr;
688 dkey->p = BN_new();
689 dkey->q = BN_new();
690 dkey->g = BN_new();
691 dkey->pub_key = BN_new();
692 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
693 goto memerr;
694 if (!lend_tobn(dkey->p, btmp, dsa_plen))
695 goto memerr;
696 btmp += dsa_plen;
697 if (!lend_tobn(dkey->q, btmp, 20))
698 goto memerr;
699 btmp += 20;
700 if (!lend_tobn(dkey->g, btmp, dsa_plen))
701 goto memerr;
702 btmp += dsa_plen;
703 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
704 goto memerr;
705 btmp += dsa_plen;
706
707 DSA_set_ex_data(dkey, dsa_capi_idx, key);
708
709 if (!(ret = EVP_PKEY_new()))
710 goto memerr;
711
712 EVP_PKEY_assign_DSA(ret, dkey);
713 dkey = NULL;
714 } else {
715 char algstr[10];
716 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
717 CAPIerr(CAPI_F_CAPI_GET_PKEY,
718 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
719 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
720 goto err;
721 }
722
723 err:
724 if (pubkey)
725 OPENSSL_free(pubkey);
726 if (!ret) {
727 if (rkey)
728 RSA_free(rkey);
729 if (dkey)
730 DSA_free(dkey);
731 }
732
733 return ret;
734
735 memerr:
736 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
737 goto err;
738
739 }
740
741 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
742 UI_METHOD *ui_method, void *callback_data)
743 {
744 CAPI_CTX *ctx;
745 CAPI_KEY *key;
746 EVP_PKEY *ret;
747 ctx = ENGINE_get_ex_data(eng, capi_idx);
748
749 if (!ctx) {
750 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
751 return NULL;
752 }
753
754 key = capi_find_key(ctx, key_id);
755
756 if (!key)
757 return NULL;
758
759 ret = capi_get_pkey(eng, key);
760
761 if (!ret)
762 capi_free_key(key);
763 return ret;
764
765 }
766
767 /* CryptoAPI RSA operations */
768
769 int capi_rsa_priv_enc(int flen, const unsigned char *from,
770 unsigned char *to, RSA *rsa, int padding)
771 {
772 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
773 return -1;
774 }
775
776 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
777 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
778 {
779 ALG_ID alg;
780 HCRYPTHASH hash;
781 DWORD slen;
782 unsigned int i;
783 int ret = -1;
784 CAPI_KEY *capi_key;
785 CAPI_CTX *ctx;
786
787 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
788
789 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
790
791 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
792 if (!capi_key) {
793 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
794 return -1;
795 }
796 /* Convert the signature type to a CryptoAPI algorithm ID */
797 switch (dtype) {
798 case NID_sha1:
799 alg = CALG_SHA1;
800 break;
801
802 case NID_md5:
803 alg = CALG_MD5;
804 break;
805
806 case NID_md5_sha1:
807 alg = CALG_SSL3_SHAMD5;
808 break;
809 default:
810 {
811 char algstr[10];
812 BIO_snprintf(algstr, 10, "%lx", dtype);
813 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
814 ERR_add_error_data(2, "NID=0x", algstr);
815 return -1;
816 }
817 }
818
819 /* Create the hash object */
820 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
821 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
822 capi_addlasterror();
823 return -1;
824 }
825 /* Set the hash value to the value passed */
826
827 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
828 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
829 capi_addlasterror();
830 goto err;
831 }
832
833 /* Finally sign it */
834 slen = RSA_size(rsa);
835 if (!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
836 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
837 capi_addlasterror();
838 goto err;
839 } else {
840 ret = 1;
841 /* Inplace byte reversal of signature */
842 for (i = 0; i < slen / 2; i++) {
843 unsigned char c;
844 c = sigret[i];
845 sigret[i] = sigret[slen - i - 1];
846 sigret[slen - i - 1] = c;
847 }
848 *siglen = slen;
849 }
850
851 /* Now cleanup */
852
853 err:
854 CryptDestroyHash(hash);
855
856 return ret;
857 }
858
859 int capi_rsa_priv_dec(int flen, const unsigned char *from,
860 unsigned char *to, RSA *rsa, int padding)
861 {
862 int i;
863 unsigned char *tmpbuf;
864 CAPI_KEY *capi_key;
865 CAPI_CTX *ctx;
866 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
867
868 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
869
870 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
871 if (!capi_key) {
872 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
873 return -1;
874 }
875
876 if (padding != RSA_PKCS1_PADDING) {
877 char errstr[10];
878 BIO_snprintf(errstr, 10, "%d", padding);
879 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
880 ERR_add_error_data(2, "padding=", errstr);
881 return -1;
882 }
883
884 /* Create temp reverse order version of input */
885 if (!(tmpbuf = OPENSSL_malloc(flen))) {
886 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
887 return -1;
888 }
889 for (i = 0; i < flen; i++)
890 tmpbuf[flen - i - 1] = from[i];
891
892 /* Finally decrypt it */
893 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen)) {
894 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
895 capi_addlasterror();
896 OPENSSL_free(tmpbuf);
897 return -1;
898 } else
899 memcpy(to, tmpbuf, flen);
900
901 OPENSSL_free(tmpbuf);
902
903 return flen;
904 }
905
906 static int capi_rsa_free(RSA *rsa)
907 {
908 CAPI_KEY *capi_key;
909 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
910 capi_free_key(capi_key);
911 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
912 return 1;
913 }
914
915 /* CryptoAPI DSA operations */
916
917 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
918 DSA *dsa)
919 {
920 HCRYPTHASH hash;
921 DWORD slen;
922 DSA_SIG *ret = NULL;
923 CAPI_KEY *capi_key;
924 CAPI_CTX *ctx;
925 unsigned char csigbuf[40];
926
927 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
928
929 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
930
931 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
932
933 if (!capi_key) {
934 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
935 return NULL;
936 }
937
938 if (dlen != 20) {
939 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
940 return NULL;
941 }
942
943 /* Create the hash object */
944 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
945 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
946 capi_addlasterror();
947 return NULL;
948 }
949
950 /* Set the hash value to the value passed */
951 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
952 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
953 capi_addlasterror();
954 goto err;
955 }
956
957 /* Finally sign it */
958 slen = sizeof(csigbuf);
959 if (!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
960 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
961 capi_addlasterror();
962 goto err;
963 } else {
964 ret = DSA_SIG_new();
965 if (!ret)
966 goto err;
967 ret->r = BN_new();
968 ret->s = BN_new();
969 if (!ret->r || !ret->s)
970 goto err;
971 if (!lend_tobn(ret->r, csigbuf, 20)
972 || !lend_tobn(ret->s, csigbuf + 20, 20)) {
973 DSA_SIG_free(ret);
974 ret = NULL;
975 goto err;
976 }
977 }
978
979 /* Now cleanup */
980
981 err:
982 OPENSSL_cleanse(csigbuf, 40);
983 CryptDestroyHash(hash);
984 return ret;
985 }
986
987 static int capi_dsa_free(DSA *dsa)
988 {
989 CAPI_KEY *capi_key;
990 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
991 capi_free_key(capi_key);
992 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
993 return 1;
994 }
995
996 static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
997 va_list argptr)
998 {
999 BIO *out;
1000
1001 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1002 return;
1003 out = BIO_new_file(ctx->debug_file, "a+");
1004 BIO_vprintf(out, format, argptr);
1005 BIO_free(out);
1006 }
1007
1008 static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
1009 {
1010 va_list args;
1011 va_start(args, format);
1012 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1013 va_end(args);
1014 }
1015
1016 static void capi_addlasterror(void)
1017 {
1018 capi_adderror(GetLastError());
1019 }
1020
1021 static void capi_adderror(DWORD err)
1022 {
1023 char errstr[10];
1024 BIO_snprintf(errstr, 10, "%lX", err);
1025 ERR_add_error_data(2, "Error code= 0x", errstr);
1026 }
1027
1028 static char *wide_to_asc(LPWSTR wstr)
1029 {
1030 char *str;
1031 int len_0, sz;
1032
1033 if (!wstr)
1034 return NULL;
1035 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1036 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1037 if (!sz) {
1038 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1039 return NULL;
1040 }
1041 str = OPENSSL_malloc(sz);
1042 if (!str) {
1043 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1044 return NULL;
1045 }
1046 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1047 OPENSSL_free(str);
1048 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1049 return NULL;
1050 }
1051 return str;
1052 }
1053
1054 static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1055 DWORD idx)
1056 {
1057 LPSTR name;
1058 DWORD len, err;
1059 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1060 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len)) {
1061 err = GetLastError();
1062 if (err == ERROR_NO_MORE_ITEMS)
1063 return 2;
1064 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1065 capi_adderror(err);
1066 return 0;
1067 }
1068 name = OPENSSL_malloc(len);
1069 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len)) {
1070 err = GetLastError();
1071 if (err == ERROR_NO_MORE_ITEMS)
1072 return 2;
1073 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1074 capi_adderror(err);
1075 return 0;
1076 }
1077 *pname = name;
1078 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name,
1079 *ptype);
1080
1081 return 1;
1082 }
1083
1084 static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1085 {
1086 DWORD idx, ptype;
1087 int ret;
1088 LPSTR provname = NULL;
1089 CAPI_trace(ctx, "capi_list_providers\n");
1090 BIO_printf(out, "Available CSPs:\n");
1091 for (idx = 0;; idx++) {
1092 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1093 if (ret == 2)
1094 break;
1095 if (ret == 0)
1096 break;
1097 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1098 OPENSSL_free(provname);
1099 }
1100 return 1;
1101 }
1102
1103 static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1104 {
1105 int ret = 1;
1106 HCRYPTPROV hprov;
1107 DWORD err, idx, flags, buflen = 0, clen;
1108 LPSTR cname;
1109 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1110 ctx->csptype);
1111 if (!CryptAcquireContextA
1112 (&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1113 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1114 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1115 capi_addlasterror();
1116 return 0;
1117 }
1118 if (!CryptGetProvParam
1119 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1120 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1121 capi_addlasterror();
1122 CryptReleaseContext(hprov, 0);
1123 return 0;
1124 }
1125 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1126 if (buflen == 0)
1127 buflen = 1024;
1128 cname = OPENSSL_malloc(buflen);
1129 if (!cname) {
1130 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1131 goto err;
1132 }
1133
1134 for (idx = 0;; idx++) {
1135 clen = buflen;
1136 cname[0] = 0;
1137
1138 if (idx == 0)
1139 flags = CRYPT_FIRST;
1140 else
1141 flags = 0;
1142 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags)) {
1143 err = GetLastError();
1144 if (err == ERROR_NO_MORE_ITEMS)
1145 goto done;
1146 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1147 capi_adderror(err);
1148 goto err;
1149 }
1150 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1151 cname, clen, idx, flags);
1152 if (!cname[0] && (clen == buflen)) {
1153 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1154 goto done;
1155 }
1156 BIO_printf(out, "%d. %s\n", idx, cname);
1157 }
1158 err:
1159
1160 ret = 0;
1161
1162 done:
1163 if (cname)
1164 OPENSSL_free(cname);
1165 CryptReleaseContext(hprov, 0);
1166
1167 return ret;
1168 }
1169
1170 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1171 {
1172 DWORD len;
1173 CRYPT_KEY_PROV_INFO *pinfo;
1174
1175 if (!CertGetCertificateContextProperty
1176 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1177 return NULL;
1178 pinfo = OPENSSL_malloc(len);
1179 if (!pinfo) {
1180 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1181 return NULL;
1182 }
1183 if (!CertGetCertificateContextProperty
1184 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1185 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1186 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1187 capi_addlasterror();
1188 OPENSSL_free(pinfo);
1189 return NULL;
1190 }
1191 return pinfo;
1192 }
1193
1194 static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1195 CRYPT_KEY_PROV_INFO * pinfo)
1196 {
1197 char *provname = NULL, *contname = NULL;
1198 if (!pinfo) {
1199 BIO_printf(out, " No Private Key\n");
1200 return;
1201 }
1202 provname = wide_to_asc(pinfo->pwszProvName);
1203 contname = wide_to_asc(pinfo->pwszContainerName);
1204 if (!provname || !contname)
1205 goto err;
1206
1207 BIO_printf(out, " Private Key Info:\n");
1208 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname,
1209 pinfo->dwProvType);
1210 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname,
1211 pinfo->dwKeySpec);
1212 err:
1213 if (provname)
1214 OPENSSL_free(provname);
1215 if (contname)
1216 OPENSSL_free(contname);
1217 }
1218
1219 char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1220 {
1221 LPWSTR wfname;
1222 DWORD dlen;
1223
1224 CAPI_trace(ctx, "capi_cert_get_fname\n");
1225 if (!CertGetCertificateContextProperty
1226 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1227 return NULL;
1228 wfname = OPENSSL_malloc(dlen);
1229 if (CertGetCertificateContextProperty
1230 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1231 char *fname = wide_to_asc(wfname);
1232 OPENSSL_free(wfname);
1233 return fname;
1234 }
1235 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1236 capi_addlasterror();
1237
1238 OPENSSL_free(wfname);
1239 return NULL;
1240 }
1241
1242 void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
1243 {
1244 X509 *x;
1245 unsigned char *p;
1246 unsigned long flags = ctx->dump_flags;
1247 if (flags & CAPI_DMP_FNAME) {
1248 char *fname;
1249 fname = capi_cert_get_fname(ctx, cert);
1250 if (fname) {
1251 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1252 OPENSSL_free(fname);
1253 } else
1254 BIO_printf(out, " <No Friendly Name>\n");
1255 }
1256
1257 p = cert->pbCertEncoded;
1258 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1259 if (!x)
1260 BIO_printf(out, " <Can't parse certificate>\n");
1261 if (flags & CAPI_DMP_SUMMARY) {
1262 BIO_printf(out, " Subject: ");
1263 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1264 BIO_printf(out, "\n Issuer: ");
1265 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1266 BIO_printf(out, "\n");
1267 }
1268 if (flags & CAPI_DMP_FULL)
1269 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1270
1271 if (flags & CAPI_DMP_PKEYINFO) {
1272 CRYPT_KEY_PROV_INFO *pinfo;
1273 pinfo = capi_get_prov_info(ctx, cert);
1274 capi_dump_prov_info(ctx, out, pinfo);
1275 if (pinfo)
1276 OPENSSL_free(pinfo);
1277 }
1278
1279 if (flags & CAPI_DMP_PEM)
1280 PEM_write_bio_X509(out, x);
1281 X509_free(x);
1282 }
1283
1284 HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
1285 {
1286 HCERTSTORE hstore;
1287
1288 if (!storename)
1289 storename = ctx->storename;
1290 if (!storename)
1291 storename = "MY";
1292 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1293
1294 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1295 ctx->store_flags, storename);
1296 if (!hstore) {
1297 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1298 capi_addlasterror();
1299 }
1300 return hstore;
1301 }
1302
1303 int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1304 {
1305 char *storename;
1306 int idx;
1307 int ret = 1;
1308 HCERTSTORE hstore;
1309 PCCERT_CONTEXT cert = NULL;
1310
1311 storename = ctx->storename;
1312 if (!storename)
1313 storename = "MY";
1314 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1315
1316 hstore = capi_open_store(ctx, storename);
1317 if (!hstore)
1318 return 0;
1319 if (id) {
1320 cert = capi_find_cert(ctx, id, hstore);
1321 if (!cert) {
1322 ret = 0;
1323 goto err;
1324 }
1325 capi_dump_cert(ctx, out, cert);
1326 CertFreeCertificateContext(cert);
1327 } else {
1328 for (idx = 0;; idx++) {
1329 LPWSTR fname = NULL;
1330 cert = CertEnumCertificatesInStore(hstore, cert);
1331 if (!cert)
1332 break;
1333 BIO_printf(out, "Certificate %d\n", idx);
1334 capi_dump_cert(ctx, out, cert);
1335 }
1336 }
1337 err:
1338 CertCloseStore(hstore, 0);
1339 return ret;
1340 }
1341
1342 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1343 HCERTSTORE hstore)
1344 {
1345 PCCERT_CONTEXT cert = NULL;
1346 char *fname = NULL;
1347 int match;
1348 switch (ctx->lookup_method) {
1349 case CAPI_LU_SUBSTR:
1350 return CertFindCertificateInStore(hstore,
1351 X509_ASN_ENCODING, 0,
1352 CERT_FIND_SUBJECT_STR_A, id, NULL);
1353 case CAPI_LU_FNAME:
1354 for (;;) {
1355 cert = CertEnumCertificatesInStore(hstore, cert);
1356 if (!cert)
1357 return NULL;
1358 fname = capi_cert_get_fname(ctx, cert);
1359 if (fname) {
1360 if (strcmp(fname, id))
1361 match = 0;
1362 else
1363 match = 1;
1364 OPENSSL_free(fname);
1365 if (match)
1366 return cert;
1367 }
1368 }
1369 default:
1370 return NULL;
1371 }
1372 }
1373
1374 static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const char *contname,
1375 char *provname, DWORD ptype, DWORD keyspec)
1376 {
1377 CAPI_KEY *key;
1378 DWORD dwFlags = 0;
1379 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1380 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1381 contname, provname, ptype);
1382 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1383 dwFlags = CRYPT_MACHINE_KEYSET;
1384 if (!CryptAcquireContextA
1385 (&key->hprov, contname, provname, ptype, dwFlags)) {
1386 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1387 capi_addlasterror();
1388 goto err;
1389 }
1390 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1391 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1392 capi_addlasterror();
1393 CryptReleaseContext(key->hprov, 0);
1394 goto err;
1395 }
1396 key->keyspec = keyspec;
1397 key->pcert = NULL;
1398 return key;
1399
1400 err:
1401 OPENSSL_free(key);
1402 return NULL;
1403 }
1404
1405 static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1406 {
1407 CAPI_KEY *key = NULL;
1408 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1409 char *provname = NULL, *contname = NULL;
1410 pinfo = capi_get_prov_info(ctx, cert);
1411 if (!pinfo)
1412 goto err;
1413 provname = wide_to_asc(pinfo->pwszProvName);
1414 contname = wide_to_asc(pinfo->pwszContainerName);
1415 if (!provname || !contname)
1416 goto err;
1417 key = capi_get_key(ctx, contname, provname,
1418 pinfo->dwProvType, pinfo->dwKeySpec);
1419
1420 err:
1421 if (pinfo)
1422 OPENSSL_free(pinfo);
1423 if (provname)
1424 OPENSSL_free(provname);
1425 if (contname)
1426 OPENSSL_free(contname);
1427 return key;
1428 }
1429
1430 CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1431 {
1432 PCCERT_CONTEXT cert;
1433 HCERTSTORE hstore;
1434 CAPI_KEY *key = NULL;
1435 switch (ctx->lookup_method) {
1436 case CAPI_LU_SUBSTR:
1437 case CAPI_LU_FNAME:
1438 hstore = capi_open_store(ctx, NULL);
1439 if (!hstore)
1440 return NULL;
1441 cert = capi_find_cert(ctx, id, hstore);
1442 if (cert) {
1443 key = capi_get_cert_key(ctx, cert);
1444 CertFreeCertificateContext(cert);
1445 }
1446 CertCloseStore(hstore, 0);
1447 break;
1448
1449 case CAPI_LU_CONTNAME:
1450 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype, ctx->keytype);
1451 break;
1452 }
1453
1454 return key;
1455 }
1456
1457 void capi_free_key(CAPI_KEY * key)
1458 {
1459 if (!key)
1460 return;
1461 CryptDestroyKey(key->key);
1462 CryptReleaseContext(key->hprov, 0);
1463 if (key->pcert)
1464 CertFreeCertificateContext(key->pcert);
1465 OPENSSL_free(key);
1466 }
1467
1468 /* Initialize a CAPI_CTX structure */
1469
1470 static CAPI_CTX *capi_ctx_new()
1471 {
1472 CAPI_CTX *ctx;
1473 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1474 if (!ctx) {
1475 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1476 return NULL;
1477 }
1478 ctx->cspname = NULL;
1479 ctx->csptype = PROV_RSA_FULL;
1480 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1481 ctx->keytype = AT_KEYEXCHANGE;
1482 ctx->storename = NULL;
1483 ctx->ssl_client_store = NULL;
1484 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1485 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1486 ctx->lookup_method = CAPI_LU_SUBSTR;
1487 ctx->debug_level = 0;
1488 ctx->debug_file = NULL;
1489 ctx->client_cert_select = cert_select_simple;
1490 return ctx;
1491 }
1492
1493 static void capi_ctx_free(CAPI_CTX * ctx)
1494 {
1495 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1496 if (!ctx)
1497 return;
1498 if (ctx->cspname)
1499 OPENSSL_free(ctx->cspname);
1500 if (ctx->debug_file)
1501 OPENSSL_free(ctx->debug_file);
1502 if (ctx->storename)
1503 OPENSSL_free(ctx->storename);
1504 if (ctx->ssl_client_store)
1505 OPENSSL_free(ctx->ssl_client_store);
1506 OPENSSL_free(ctx);
1507 }
1508
1509 static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1510 int check)
1511 {
1512 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1513 if (check) {
1514 HCRYPTPROV hprov;
1515 if (!CryptAcquireContextA(&hprov, NULL, pname, type,
1516 CRYPT_VERIFYCONTEXT)) {
1517 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1518 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1519 capi_addlasterror();
1520 return 0;
1521 }
1522 CryptReleaseContext(hprov, 0);
1523 }
1524 if (ctx->cspname)
1525 OPENSSL_free(ctx->cspname);
1526 ctx->cspname = BUF_strdup(pname);
1527 ctx->csptype = type;
1528 return 1;
1529 }
1530
1531 static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1532 {
1533 LPSTR pname;
1534 DWORD type;
1535 int res;
1536 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1537 return 0;
1538 res = capi_ctx_set_provname(ctx, pname, type, 0);
1539 OPENSSL_free(pname);
1540 return res;
1541 }
1542
1543 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1544 {
1545 int i;
1546 X509_NAME *nm;
1547 /* Special case: empty list: match anything */
1548 if (sk_X509_NAME_num(ca_dn) <= 0)
1549 return 1;
1550 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1551 nm = sk_X509_NAME_value(ca_dn, i);
1552 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1553 return 1;
1554 }
1555 return 0;
1556 }
1557
1558 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1559 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1560 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1561 UI_METHOD *ui_method,
1562 void *callback_data)
1563 {
1564 STACK_OF(X509) *certs = NULL;
1565 X509 *x;
1566 char *storename;
1567 const char *p;
1568 int i, client_cert_idx;
1569 HCERTSTORE hstore;
1570 PCCERT_CONTEXT cert = NULL, excert = NULL;
1571 CAPI_CTX *ctx;
1572 CAPI_KEY *key;
1573 ctx = ENGINE_get_ex_data(e, capi_idx);
1574
1575 *pcert = NULL;
1576 *pkey = NULL;
1577
1578 storename = ctx->ssl_client_store;
1579 if (!storename)
1580 storename = "MY";
1581
1582 hstore = capi_open_store(ctx, storename);
1583 if (!hstore)
1584 return 0;
1585 /* Enumerate all certificates collect any matches */
1586 for (i = 0;; i++) {
1587 cert = CertEnumCertificatesInStore(hstore, cert);
1588 if (!cert)
1589 break;
1590 p = cert->pbCertEncoded;
1591 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1592 if (!x) {
1593 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1594 continue;
1595 }
1596 if (cert_issuer_match(ca_dn, x)
1597 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1598 key = capi_get_cert_key(ctx, cert);
1599 if (!key) {
1600 X509_free(x);
1601 continue;
1602 }
1603 /*
1604 * Match found: attach extra data to it so we can retrieve the
1605 * key later.
1606 */
1607 excert = CertDuplicateCertificateContext(cert);
1608 key->pcert = excert;
1609 X509_set_ex_data(x, cert_capi_idx, key);
1610
1611 if (!certs)
1612 certs = sk_X509_new_null();
1613
1614 sk_X509_push(certs, x);
1615 } else
1616 X509_free(x);
1617
1618 }
1619
1620 if (cert)
1621 CertFreeCertificateContext(cert);
1622 if (hstore)
1623 CertCloseStore(hstore, 0);
1624
1625 if (!certs)
1626 return 0;
1627
1628 /* Select the appropriate certificate */
1629
1630 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1631
1632 /* Set the selected certificate and free the rest */
1633
1634 for (i = 0; i < sk_X509_num(certs); i++) {
1635 x = sk_X509_value(certs, i);
1636 if (i == client_cert_idx)
1637 *pcert = x;
1638 else {
1639 key = X509_get_ex_data(x, cert_capi_idx);
1640 capi_free_key(key);
1641 X509_free(x);
1642 }
1643 }
1644
1645 sk_X509_free(certs);
1646
1647 if (!*pcert)
1648 return 0;
1649
1650 /* Setup key for selected certificate */
1651
1652 key = X509_get_ex_data(*pcert, cert_capi_idx);
1653 *pkey = capi_get_pkey(e, key);
1654 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1655
1656 return 1;
1657
1658 }
1659
1660 /* Simple client cert selection function: always select first */
1661
1662 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1663 {
1664 return 0;
1665 }
1666
1667 # ifdef OPENSSL_CAPIENG_DIALOG
1668
1669 /*
1670 * More complex cert selection function, using standard function
1671 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1672 */
1673
1674 /*
1675 * Definitions which are in cryptuiapi.h but this is not present in older
1676 * versions of headers.
1677 */
1678
1679 # ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1680 # define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1681 # define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1682 # endif
1683
1684 # define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1685 # define dlg_prompt L"Select a certificate to use for authentication"
1686 # define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1687 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1688
1689 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1690 {
1691 X509 *x;
1692 HCERTSTORE dstore;
1693 PCCERT_CONTEXT cert;
1694 CAPI_CTX *ctx;
1695 CAPI_KEY *key;
1696 HWND hwnd;
1697 int i, idx = -1;
1698 if (sk_X509_num(certs) == 1)
1699 return 0;
1700 ctx = ENGINE_get_ex_data(e, capi_idx);
1701 /* Create an in memory store of certificates */
1702 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1703 CERT_STORE_CREATE_NEW_FLAG, NULL);
1704 if (!dstore) {
1705 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1706 capi_addlasterror();
1707 goto err;
1708 }
1709 /* Add all certificates to store */
1710 for (i = 0; i < sk_X509_num(certs); i++) {
1711 x = sk_X509_value(certs, i);
1712 key = X509_get_ex_data(x, cert_capi_idx);
1713
1714 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1715 CERT_STORE_ADD_NEW, NULL)) {
1716 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1717 capi_addlasterror();
1718 goto err;
1719 }
1720
1721 }
1722 hwnd = GetForegroundWindow();
1723 if (!hwnd)
1724 hwnd = GetActiveWindow();
1725 if (!hwnd && ctx->getconswindow)
1726 hwnd = ctx->getconswindow();
1727 /* Call dialog to select one */
1728 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1729 dlg_columns, 0, NULL);
1730
1731 /* Find matching cert from list */
1732 if (cert) {
1733 for (i = 0; i < sk_X509_num(certs); i++) {
1734 x = sk_X509_value(certs, i);
1735 key = X509_get_ex_data(x, cert_capi_idx);
1736 if (CertCompareCertificate
1737 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1738 key->pcert->pCertInfo)) {
1739 idx = i;
1740 break;
1741 }
1742 }
1743 }
1744
1745 err:
1746 if (dstore)
1747 CertCloseStore(dstore, 0);
1748 return idx;
1749
1750 }
1751 # endif
1752
1753 #else /* !__COMPILE_CAPIENG */
1754 # include <openssl/engine.h>
1755 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
1756 OPENSSL_EXPORT
1757 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1758 OPENSSL_EXPORT
1759 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1760 {
1761 return 0;
1762 }
1763
1764 IMPLEMENT_DYNAMIC_CHECK_FN()
1765 # else
1766 void ENGINE_load_capi(void)
1767 {
1768 }
1769 # endif
1770 #endif
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