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[thirdparty/openssl.git] / engines / e_capi.c
1 /* engines/e_capi.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project.
4 */
5 /* ====================================================================
6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
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 #undef X509_EXTENSIONS
75 #undef X509_CERT_PAIR
76
77 /* Definitions which may be missing from earlier version of headers */
78 #ifndef CERT_STORE_OPEN_EXISTING_FLAG
79 #define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
80 #endif
81
82 #ifndef CERT_STORE_CREATE_NEW_FLAG
83 #define CERT_STORE_CREATE_NEW_FLAG 0x00002000
84 #endif
85
86 #ifndef CERT_SYSTEM_STORE_CURRENT_USER
87 #define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
88 #endif
89
90 #include <openssl/engine.h>
91 #include <openssl/pem.h>
92 #include <openssl/x509v3.h>
93
94 #include "e_capi_err.h"
95 #include "e_capi_err.c"
96
97
98 static const char *engine_capi_id = "capi";
99 static const char *engine_capi_name = "CryptoAPI ENGINE";
100
101 typedef struct CAPI_CTX_st CAPI_CTX;
102 typedef struct CAPI_KEY_st CAPI_KEY;
103
104 static void capi_addlasterror(void);
105 static void capi_adderror(DWORD err);
106
107 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
108
109 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
110 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
111 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
112 void capi_free_key(CAPI_KEY *key);
113
114 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
115
116 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
117
118 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
119 UI_METHOD *ui_method, void *callback_data);
120 static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
121 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
122 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
123 unsigned char *to, RSA *rsa, int padding);
124 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
125 unsigned char *to, RSA *rsa, int padding);
126 static int capi_rsa_free(RSA *rsa);
127
128 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
129 DSA *dsa);
130 static int capi_dsa_free(DSA *dsa);
131
132 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
133 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
134 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
135
136 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
137 #ifdef OPENSSL_CAPIENG_DIALOG
138 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
139 #endif
140
141 typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
142 LPCWSTR, DWORD, DWORD,
143 void *);
144 typedef HWND (WINAPI *GETCONSWIN)(void);
145
146 /* This structure contains CAPI ENGINE specific data:
147 * it contains various global options and affects how
148 * other functions behave.
149 */
150
151 #define CAPI_DBG_TRACE 2
152 #define CAPI_DBG_ERROR 1
153
154 struct CAPI_CTX_st {
155 int debug_level;
156 char *debug_file;
157 /* Parameters to use for container lookup */
158 DWORD keytype;
159 LPSTR cspname;
160 DWORD csptype;
161 /* Certificate store name to use */
162 LPSTR storename;
163 LPSTR ssl_client_store;
164 /* System store flags */
165 DWORD store_flags;
166
167 /* Lookup string meanings in load_private_key */
168 /* Substring of subject: uses "storename" */
169 #define CAPI_LU_SUBSTR 1
170 /* Friendly name: uses storename */
171 #define CAPI_LU_FNAME 2
172 /* Container name: uses cspname, keytype */
173 #define CAPI_LU_CONTNAME 3
174 int lookup_method;
175 /* Info to dump with dumpcerts option */
176 /* Issuer and serial name strings */
177 #define CAPI_DMP_SUMMARY 0x1
178 /* Friendly name */
179 #define CAPI_DMP_FNAME 0x2
180 /* Full X509_print dump */
181 #define CAPI_DMP_FULL 0x4
182 /* Dump PEM format certificate */
183 #define CAPI_DMP_PEM 0x8
184 /* Dump pseudo key (if possible) */
185 #define CAPI_DMP_PSKEY 0x10
186 /* Dump key info (if possible) */
187 #define CAPI_DMP_PKEYINFO 0x20
188
189 DWORD dump_flags;
190 int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
191
192 CERTDLG certselectdlg;
193 GETCONSWIN getconswindow;
194 };
195
196
197 static CAPI_CTX *capi_ctx_new();
198 static void capi_ctx_free(CAPI_CTX *ctx);
199 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
200 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
201
202 #define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
203 #define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
204 #define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
205 #define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
206 #define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
207 #define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
208 #define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
209 #define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
210 #define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
211 #define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
212 #define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
213 #define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
214 #define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
215 #define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
216
217 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
218 {CAPI_CMD_LIST_CERTS,
219 "list_certs",
220 "List all certificates in store",
221 ENGINE_CMD_FLAG_NO_INPUT},
222 {CAPI_CMD_LOOKUP_CERT,
223 "lookup_cert",
224 "Lookup and output certificates",
225 ENGINE_CMD_FLAG_STRING},
226 {CAPI_CMD_DEBUG_LEVEL,
227 "debug_level",
228 "debug level (1=errors, 2=trace)",
229 ENGINE_CMD_FLAG_NUMERIC},
230 {CAPI_CMD_DEBUG_FILE,
231 "debug_file",
232 "debugging filename)",
233 ENGINE_CMD_FLAG_STRING},
234 {CAPI_CMD_KEYTYPE,
235 "key_type",
236 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
237 ENGINE_CMD_FLAG_NUMERIC},
238 {CAPI_CMD_LIST_CSPS,
239 "list_csps",
240 "List all CSPs",
241 ENGINE_CMD_FLAG_NO_INPUT},
242 {CAPI_CMD_SET_CSP_IDX,
243 "csp_idx",
244 "Set CSP by index",
245 ENGINE_CMD_FLAG_NUMERIC},
246 {CAPI_CMD_SET_CSP_NAME,
247 "csp_name",
248 "Set CSP name, (default CSP used if not specified)",
249 ENGINE_CMD_FLAG_STRING},
250 {CAPI_CMD_SET_CSP_TYPE,
251 "csp_type",
252 "Set CSP type, (default RSA_PROV_FULL)",
253 ENGINE_CMD_FLAG_NUMERIC},
254 {CAPI_CMD_LIST_CONTAINERS,
255 "list_containers",
256 "list container names",
257 ENGINE_CMD_FLAG_NO_INPUT},
258 {CAPI_CMD_LIST_OPTIONS,
259 "list_options",
260 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
261 "32=private key info)",
262 ENGINE_CMD_FLAG_NUMERIC},
263 {CAPI_CMD_LOOKUP_METHOD,
264 "lookup_method",
265 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
266 ENGINE_CMD_FLAG_NUMERIC},
267 {CAPI_CMD_STORE_NAME,
268 "store_name",
269 "certificate store name, default \"MY\"",
270 ENGINE_CMD_FLAG_STRING},
271 {CAPI_CMD_STORE_FLAGS,
272 "store_flags",
273 "Certificate store flags: 1 = system store",
274 ENGINE_CMD_FLAG_NUMERIC},
275
276 {0, NULL, NULL, 0}
277 };
278
279 static int capi_idx = -1;
280 static int rsa_capi_idx = -1;
281 static int dsa_capi_idx = -1;
282 static int cert_capi_idx = -1;
283
284 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
285 {
286 int ret = 1;
287 CAPI_CTX *ctx;
288 BIO *out;
289 if (capi_idx == -1)
290 {
291 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
292 return 0;
293 }
294 ctx = ENGINE_get_ex_data(e, capi_idx);
295 out = BIO_new_fp(stdout, BIO_NOCLOSE);
296 switch (cmd)
297 {
298 case CAPI_CMD_LIST_CSPS:
299 ret = capi_list_providers(ctx, out);
300 break;
301
302 case CAPI_CMD_LIST_CERTS:
303 ret = capi_list_certs(ctx, out, NULL);
304 break;
305
306 case CAPI_CMD_LOOKUP_CERT:
307 ret = capi_list_certs(ctx, out, p);
308 break;
309
310 case CAPI_CMD_LIST_CONTAINERS:
311 ret = capi_list_containers(ctx, out);
312 break;
313
314 case CAPI_CMD_STORE_NAME:
315 if (ctx->storename)
316 OPENSSL_free(ctx->storename);
317 ctx->storename = BUF_strdup(p);
318 CAPI_trace(ctx, "Setting store name to %s\n", p);
319 break;
320
321 case CAPI_CMD_STORE_FLAGS:
322 if (i & 1)
323 {
324 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
325 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
326 }
327 else
328 {
329 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
330 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
331 }
332 CAPI_trace(ctx, "Setting flags to %d\n", i);
333 break;
334
335 case CAPI_CMD_DEBUG_LEVEL:
336 ctx->debug_level = (int)i;
337 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
338 break;
339
340 case CAPI_CMD_DEBUG_FILE:
341 ctx->debug_file = BUF_strdup(p);
342 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
343 break;
344
345 case CAPI_CMD_KEYTYPE:
346 ctx->keytype = i;
347 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
348 break;
349
350 case CAPI_CMD_SET_CSP_IDX:
351 ret = capi_ctx_set_provname_idx(ctx, i);
352 break;
353
354 case CAPI_CMD_LIST_OPTIONS:
355 ctx->dump_flags = i;
356 break;
357
358 case CAPI_CMD_LOOKUP_METHOD:
359 if (i < 1 || i > 3)
360 {
361 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
362 return 0;
363 }
364 ctx->lookup_method = i;
365 break;
366
367 case CAPI_CMD_SET_CSP_NAME:
368 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
369 break;
370
371 case CAPI_CMD_SET_CSP_TYPE:
372 ctx->csptype = i;
373 break;
374
375 default:
376 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
377 ret = 0;
378 }
379
380 BIO_free(out);
381 return ret;
382
383 }
384
385 static RSA_METHOD capi_rsa_method =
386 {
387 "CryptoAPI RSA method",
388 0, /* pub_enc */
389 0, /* pub_dec */
390 capi_rsa_priv_enc, /* priv_enc */
391 capi_rsa_priv_dec, /* priv_dec */
392 0, /* rsa_mod_exp */
393 0, /* bn_mod_exp */
394 0, /* init */
395 capi_rsa_free, /* finish */
396 RSA_FLAG_SIGN_VER, /* flags */
397 NULL, /* app_data */
398 capi_rsa_sign, /* rsa_sign */
399 0 /* rsa_verify */
400 };
401
402 static DSA_METHOD capi_dsa_method =
403 {
404 "CryptoAPI DSA method",
405 capi_dsa_do_sign, /* dsa_do_sign */
406 0, /* dsa_sign_setup */
407 0, /* dsa_do_verify */
408 0, /* dsa_mod_exp */
409 0, /* bn_mod_exp */
410 0, /* init */
411 capi_dsa_free, /* finish */
412 0, /* flags */
413 NULL, /* app_data */
414 0, /* dsa_paramgen */
415 0 /* dsa_keygen */
416 };
417
418 static int capi_init(ENGINE *e)
419 {
420 CAPI_CTX *ctx;
421 const RSA_METHOD *ossl_rsa_meth;
422 const DSA_METHOD *ossl_dsa_meth;
423 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
424 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
425
426 ctx = capi_ctx_new();
427 if (!ctx || (capi_idx < 0))
428 goto memerr;
429
430 ENGINE_set_ex_data(e, capi_idx, ctx);
431 /* Setup RSA_METHOD */
432 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
433 ossl_rsa_meth = RSA_PKCS1_SSLeay();
434 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
435 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
436 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
437 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
438
439 /* Setup DSA Method */
440 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
441 ossl_dsa_meth = DSA_OpenSSL();
442 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
443 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
444 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
445
446 #ifdef OPENSSL_CAPIENG_DIALOG
447 {
448 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
449 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
450 if (cryptui)
451 ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore");
452 if (kernel)
453 ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow");
454 if (cryptui && !OPENSSL_isservice())
455 ctx->client_cert_select = cert_select_dialog;
456 }
457 #endif
458
459
460 return 1;
461
462 memerr:
463 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
464 return 0;
465
466 return 1;
467 }
468
469 static int capi_destroy(ENGINE *e)
470 {
471 ERR_unload_CAPI_strings();
472 return 1;
473 }
474
475 static int capi_finish(ENGINE *e)
476 {
477 CAPI_CTX *ctx;
478 ctx = ENGINE_get_ex_data(e, capi_idx);
479 capi_ctx_free(ctx);
480 ENGINE_set_ex_data(e, capi_idx, NULL);
481 return 1;
482 }
483
484
485 /* CryptoAPI key application data. This contains
486 * a handle to the private key container (for sign operations)
487 * and a handle to the key (for decrypt operations).
488 */
489
490 struct CAPI_KEY_st
491 {
492 /* Associated certificate context (if any) */
493 PCCERT_CONTEXT pcert;
494 HCRYPTPROV hprov;
495 HCRYPTKEY key;
496 DWORD keyspec;
497 };
498
499 static int bind_capi(ENGINE *e)
500 {
501 if (!ENGINE_set_id(e, engine_capi_id)
502 || !ENGINE_set_name(e, engine_capi_name)
503 || !ENGINE_set_init_function(e, capi_init)
504 || !ENGINE_set_finish_function(e, capi_finish)
505 || !ENGINE_set_destroy_function(e, capi_destroy)
506 || !ENGINE_set_RSA(e, &capi_rsa_method)
507 || !ENGINE_set_DSA(e, &capi_dsa_method)
508 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
509 || !ENGINE_set_load_ssl_client_cert_function(e,
510 capi_load_ssl_client_cert)
511 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
512 || !ENGINE_set_ctrl_function(e, capi_ctrl))
513 return 0;
514 ERR_load_CAPI_strings();
515
516 return 1;
517
518 }
519
520 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
521 static int bind_helper(ENGINE *e, const char *id)
522 {
523 if(id && (strcmp(id, engine_capi_id) != 0))
524 return 0;
525 if(!bind_capi(e))
526 return 0;
527 return 1;
528 }
529 IMPLEMENT_DYNAMIC_CHECK_FN()
530 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
531 #else
532 static ENGINE *engine_capi(void)
533 {
534 ENGINE *ret = ENGINE_new();
535 if(!ret)
536 return NULL;
537 if(!bind_capi(ret))
538 {
539 ENGINE_free(ret);
540 return NULL;
541 }
542 return ret;
543 }
544
545 void ENGINE_load_capi(void)
546 {
547 /* Copied from eng_[openssl|dyn].c */
548 ENGINE *toadd = engine_capi();
549 if(!toadd) return;
550 ENGINE_add(toadd);
551 ENGINE_free(toadd);
552 ERR_clear_error();
553 }
554 #endif
555
556
557 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
558 {
559 int i;
560 /* Reverse buffer in place: since this is a keyblob structure
561 * that will be freed up after conversion anyway it doesn't
562 * matter if we change it.
563 */
564 for(i = 0; i < binlen / 2; i++)
565 {
566 unsigned char c;
567 c = bin[i];
568 bin[i] = bin[binlen - i - 1];
569 bin[binlen - i - 1] = c;
570 }
571
572 if (!BN_bin2bn(bin, binlen, bn))
573 return 0;
574 return 1;
575 }
576
577 /* Given a CAPI_KEY get an EVP_PKEY structure */
578
579 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
580 {
581 unsigned char *pubkey = NULL;
582 DWORD len;
583 BLOBHEADER *bh;
584 RSA *rkey = NULL;
585 DSA *dkey = NULL;
586 EVP_PKEY *ret = NULL;
587 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
588 {
589 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
590 capi_addlasterror();
591 return NULL;
592 }
593
594 pubkey = OPENSSL_malloc(len);
595
596 if (!pubkey)
597 goto memerr;
598
599 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
600 {
601 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
602 capi_addlasterror();
603 goto err;
604 }
605
606 bh = (BLOBHEADER *)pubkey;
607 if (bh->bType != PUBLICKEYBLOB)
608 {
609 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
610 goto err;
611 }
612 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
613 {
614 RSAPUBKEY *rp;
615 DWORD rsa_modlen;
616 unsigned char *rsa_modulus;
617 rp = (RSAPUBKEY *)(bh + 1);
618 if (rp->magic != 0x31415352)
619 {
620 char magstr[10];
621 BIO_snprintf(magstr, 10, "%lx", rp->magic);
622 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
623 ERR_add_error_data(2, "magic=0x", magstr);
624 goto err;
625 }
626 rsa_modulus = (unsigned char *)(rp + 1);
627 rkey = RSA_new_method(eng);
628 if (!rkey)
629 goto memerr;
630
631 rkey->e = BN_new();
632 rkey->n = BN_new();
633
634 if (!rkey->e || !rkey->n)
635 goto memerr;
636
637 if (!BN_set_word(rkey->e, rp->pubexp))
638 goto memerr;
639
640 rsa_modlen = rp->bitlen / 8;
641 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
642 goto memerr;
643
644 RSA_set_ex_data(rkey, rsa_capi_idx, key);
645
646 if (!(ret = EVP_PKEY_new()))
647 goto memerr;
648
649 EVP_PKEY_assign_RSA(ret, rkey);
650 rkey = NULL;
651
652 }
653 else if (bh->aiKeyAlg == CALG_DSS_SIGN)
654 {
655 DSSPUBKEY *dp;
656 DWORD dsa_plen;
657 unsigned char *btmp;
658 dp = (DSSPUBKEY *)(bh + 1);
659 if (dp->magic != 0x31535344)
660 {
661 char magstr[10];
662 BIO_snprintf(magstr, 10, "%lx", dp->magic);
663 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
664 ERR_add_error_data(2, "magic=0x", magstr);
665 goto err;
666 }
667 dsa_plen = dp->bitlen / 8;
668 btmp = (unsigned char *)(dp + 1);
669 dkey = DSA_new_method(eng);
670 if (!dkey)
671 goto memerr;
672 dkey->p = BN_new();
673 dkey->q = BN_new();
674 dkey->g = BN_new();
675 dkey->pub_key = BN_new();
676 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
677 goto memerr;
678 if (!lend_tobn(dkey->p, btmp, dsa_plen))
679 goto memerr;
680 btmp += dsa_plen;
681 if (!lend_tobn(dkey->q, btmp, 20))
682 goto memerr;
683 btmp += 20;
684 if (!lend_tobn(dkey->g, btmp, dsa_plen))
685 goto memerr;
686 btmp += dsa_plen;
687 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
688 goto memerr;
689 btmp += dsa_plen;
690
691 DSA_set_ex_data(dkey, dsa_capi_idx, key);
692
693 if (!(ret = EVP_PKEY_new()))
694 goto memerr;
695
696 EVP_PKEY_assign_DSA(ret, dkey);
697 dkey = NULL;
698 }
699 else
700 {
701 char algstr[10];
702 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
703 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
704 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
705 goto err;
706 }
707
708
709 err:
710 if (pubkey)
711 OPENSSL_free(pubkey);
712 if (!ret)
713 {
714 if (rkey)
715 RSA_free(rkey);
716 if (dkey)
717 DSA_free(dkey);
718 }
719
720 return ret;
721
722 memerr:
723 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
724 goto err;
725
726 }
727
728 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
729 UI_METHOD *ui_method, void *callback_data)
730 {
731 CAPI_CTX *ctx;
732 CAPI_KEY *key;
733 EVP_PKEY *ret;
734 ctx = ENGINE_get_ex_data(eng, capi_idx);
735
736 if (!ctx)
737 {
738 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
739 return NULL;
740 }
741
742 key = capi_find_key(ctx, key_id);
743
744 if (!key)
745 return NULL;
746
747 ret = capi_get_pkey(eng, key);
748
749 if (!ret)
750 capi_free_key(key);
751 return ret;
752
753 }
754
755 /* CryptoAPI RSA operations */
756
757 int capi_rsa_priv_enc(int flen, const unsigned char *from,
758 unsigned char *to, RSA *rsa, int padding)
759 {
760 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
761 return -1;
762 }
763
764 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
765 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
766 {
767 ALG_ID alg;
768 HCRYPTHASH hash;
769 DWORD slen;
770 unsigned int i;
771 int ret = -1;
772 CAPI_KEY *capi_key;
773 CAPI_CTX *ctx;
774
775 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
776
777 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
778
779 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
780 if (!capi_key)
781 {
782 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
783 return -1;
784 }
785 /* Convert the signature type to a CryptoAPI algorithm ID */
786 switch(dtype)
787 {
788 case NID_sha1:
789 alg = CALG_SHA1;
790 break;
791
792 case NID_md5:
793 alg = CALG_MD5;
794 break;
795
796 case NID_md5_sha1:
797 alg = CALG_SSL3_SHAMD5;
798 break;
799 default:
800 {
801 char algstr[10];
802 BIO_snprintf(algstr, 10, "%lx", dtype);
803 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
804 ERR_add_error_data(2, "NID=0x", algstr);
805 return -1;
806 }
807 }
808
809
810
811 /* Create the hash object */
812 if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
813 {
814 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
815 capi_addlasterror();
816 return -1;
817 }
818 /* Set the hash value to the value passed */
819
820 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
821 {
822 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
823 capi_addlasterror();
824 goto err;
825 }
826
827
828 /* Finally sign it */
829 slen = RSA_size(rsa);
830 if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
831 {
832 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
833 capi_addlasterror();
834 goto err;
835 }
836 else
837 {
838 ret = 1;
839 /* Inplace byte reversal of signature */
840 for(i = 0; i < slen / 2; i++)
841 {
842 unsigned char c;
843 c = sigret[i];
844 sigret[i] = sigret[slen - i - 1];
845 sigret[slen - i - 1] = c;
846 }
847 *siglen = slen;
848 }
849
850 /* Now cleanup */
851
852 err:
853 CryptDestroyHash(hash);
854
855 return ret;
856 }
857
858 int capi_rsa_priv_dec(int flen, const unsigned char *from,
859 unsigned char *to, RSA *rsa, int padding)
860 {
861 int i;
862 unsigned char *tmpbuf;
863 CAPI_KEY *capi_key;
864 CAPI_CTX *ctx;
865 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
866
867 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
868
869
870 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
871 if (!capi_key)
872 {
873 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
874 return -1;
875 }
876
877 if(padding != RSA_PKCS1_PADDING)
878 {
879 char errstr[10];
880 BIO_snprintf(errstr, 10, "%d", padding);
881 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
882 ERR_add_error_data(2, "padding=", errstr);
883 return -1;
884 }
885
886 /* Create temp reverse order version of input */
887 if(!(tmpbuf = OPENSSL_malloc(flen)) )
888 {
889 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
890 return -1;
891 }
892 for(i = 0; i < flen; i++)
893 tmpbuf[flen - i - 1] = from[i];
894
895 /* Finally decrypt it */
896 if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
897 {
898 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
899 capi_addlasterror();
900 OPENSSL_free(tmpbuf);
901 return -1;
902 }
903 else memcpy(to, tmpbuf, flen);
904
905 OPENSSL_free(tmpbuf);
906
907 return flen;
908 }
909
910 static int capi_rsa_free(RSA *rsa)
911 {
912 CAPI_KEY *capi_key;
913 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
914 capi_free_key(capi_key);
915 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
916 return 1;
917 }
918
919 /* CryptoAPI DSA operations */
920
921 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
922 DSA *dsa)
923 {
924 HCRYPTHASH hash;
925 DWORD slen;
926 DSA_SIG *ret = NULL;
927 CAPI_KEY *capi_key;
928 CAPI_CTX *ctx;
929 unsigned char csigbuf[40];
930
931 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
932
933 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
934
935 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
936
937 if (!capi_key)
938 {
939 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
940 return NULL;
941 }
942
943 if (dlen != 20)
944 {
945 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
946 return NULL;
947 }
948
949 /* Create the hash object */
950 if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
951 {
952 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
953 capi_addlasterror();
954 return NULL;
955 }
956
957 /* Set the hash value to the value passed */
958 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
959 {
960 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
961 capi_addlasterror();
962 goto err;
963 }
964
965
966 /* Finally sign it */
967 slen = sizeof(csigbuf);
968 if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
969 {
970 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
971 capi_addlasterror();
972 goto err;
973 }
974 else
975 {
976 ret = DSA_SIG_new();
977 if (!ret)
978 goto err;
979 ret->r = BN_new();
980 ret->s = BN_new();
981 if (!ret->r || !ret->s)
982 goto err;
983 if (!lend_tobn(ret->r, csigbuf, 20)
984 || !lend_tobn(ret->s, csigbuf + 20, 20))
985 {
986 DSA_SIG_free(ret);
987 ret = NULL;
988 goto err;
989 }
990 }
991
992 /* Now cleanup */
993
994 err:
995 OPENSSL_cleanse(csigbuf, 40);
996 CryptDestroyHash(hash);
997 return ret;
998 }
999
1000 static int capi_dsa_free(DSA *dsa)
1001 {
1002 CAPI_KEY *capi_key;
1003 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1004 capi_free_key(capi_key);
1005 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1006 return 1;
1007 }
1008
1009 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
1010 {
1011 BIO *out;
1012
1013 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1014 return;
1015 out = BIO_new_file(ctx->debug_file, "a+");
1016 BIO_vprintf(out, format, argptr);
1017 BIO_free(out);
1018 }
1019
1020 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1021 {
1022 va_list args;
1023 va_start(args, format);
1024 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1025 va_end(args);
1026 }
1027
1028 static void capi_addlasterror(void)
1029 {
1030 capi_adderror(GetLastError());
1031 }
1032
1033 static void capi_adderror(DWORD err)
1034 {
1035 char errstr[10];
1036 BIO_snprintf(errstr, 10, "%lX", err);
1037 ERR_add_error_data(2, "Error code= 0x", errstr);
1038 }
1039
1040 static char *wide_to_asc(LPWSTR wstr)
1041 {
1042 char *str;
1043 int len_0,sz;
1044
1045 if (!wstr)
1046 return NULL;
1047 len_0 = (int)wcslen(wstr)+1; /* WideCharToMultiByte expects int */
1048 sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL);
1049 if (!sz)
1050 {
1051 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1052 return NULL;
1053 }
1054 str = OPENSSL_malloc(sz);
1055 if (!str)
1056 {
1057 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1058 return NULL;
1059 }
1060 if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL))
1061 {
1062 OPENSSL_free(str);
1063 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1064 return NULL;
1065 }
1066 return str;
1067 }
1068
1069 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
1070 {
1071 LPSTR name;
1072 DWORD len, err;
1073 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1074 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len))
1075 {
1076 err = GetLastError();
1077 if (err == ERROR_NO_MORE_ITEMS)
1078 return 2;
1079 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1080 capi_adderror(err);
1081 return 0;
1082 }
1083 name = OPENSSL_malloc(len);
1084 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len))
1085 {
1086 err = GetLastError();
1087 if (err == ERROR_NO_MORE_ITEMS)
1088 return 2;
1089 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1090 capi_adderror(err);
1091 return 0;
1092 }
1093 *pname = name;
1094 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
1095
1096 return 1;
1097 }
1098
1099 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1100 {
1101 DWORD idx, ptype;
1102 int ret;
1103 LPSTR provname = NULL;
1104 CAPI_trace(ctx, "capi_list_providers\n");
1105 BIO_printf(out, "Available CSPs:\n");
1106 for(idx = 0; ; idx++)
1107 {
1108 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1109 if (ret == 2)
1110 break;
1111 if (ret == 0)
1112 break;
1113 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1114 OPENSSL_free(provname);
1115 }
1116 return 1;
1117 }
1118
1119 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1120 {
1121 int ret = 1;
1122 HCRYPTPROV hprov;
1123 DWORD err, idx, flags, buflen = 0, clen;
1124 LPSTR cname;
1125 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
1126 if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
1127 {
1128 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1129 capi_addlasterror();
1130 return 0;
1131 }
1132 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1133 {
1134 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1135 capi_addlasterror();
1136 return 0;
1137 }
1138 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1139 if (buflen == 0)
1140 buflen = 1024;
1141 cname = OPENSSL_malloc(buflen);
1142 if (!cname)
1143 {
1144 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1145 goto err;
1146 }
1147
1148 for (idx = 0;;idx++)
1149 {
1150 clen = buflen;
1151 cname[0] = 0;
1152
1153 if (idx == 0)
1154 flags = CRYPT_FIRST;
1155 else
1156 flags = 0;
1157 if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1158 {
1159 err = GetLastError();
1160 if (err == ERROR_NO_MORE_ITEMS)
1161 goto done;
1162 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1163 capi_adderror(err);
1164 goto err;
1165 }
1166 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1167 if (!cname[0] && (clen == buflen))
1168 {
1169 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1170 goto done;
1171 }
1172 BIO_printf(out, "%d. %s\n", idx, cname);
1173 }
1174 err:
1175
1176 ret = 0;
1177
1178 done:
1179 if (cname)
1180 OPENSSL_free(cname);
1181 CryptReleaseContext(hprov, 0);
1182
1183 return ret;
1184 }
1185
1186 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1187 {
1188 DWORD len;
1189 CRYPT_KEY_PROV_INFO *pinfo;
1190
1191 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1192 return NULL;
1193 pinfo = OPENSSL_malloc(len);
1194 if (!pinfo)
1195 {
1196 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1197 return NULL;
1198 }
1199 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1200 {
1201 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1202 capi_addlasterror();
1203 OPENSSL_free(pinfo);
1204 return NULL;
1205 }
1206 return pinfo;
1207 }
1208
1209 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1210 {
1211 char *provname = NULL, *contname = NULL;
1212 if (!pinfo)
1213 {
1214 BIO_printf(out, " No Private Key\n");
1215 return;
1216 }
1217 provname = wide_to_asc(pinfo->pwszProvName);
1218 contname = wide_to_asc(pinfo->pwszContainerName);
1219 if (!provname || !contname)
1220 goto err;
1221
1222 BIO_printf(out, " Private Key Info:\n");
1223 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname, pinfo->dwProvType);
1224 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1225 err:
1226 if (provname)
1227 OPENSSL_free(provname);
1228 if (contname)
1229 OPENSSL_free(contname);
1230 }
1231
1232 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1233 {
1234 LPWSTR wfname;
1235 DWORD dlen;
1236
1237 CAPI_trace(ctx, "capi_cert_get_fname\n");
1238 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1239 return NULL;
1240 wfname = OPENSSL_malloc(dlen);
1241 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1242 {
1243 char *fname = wide_to_asc(wfname);
1244 OPENSSL_free(wfname);
1245 return fname;
1246 }
1247 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1248 capi_addlasterror();
1249
1250 OPENSSL_free(wfname);
1251 return NULL;
1252 }
1253
1254
1255 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1256 {
1257 X509 *x;
1258 unsigned char *p;
1259 unsigned long flags = ctx->dump_flags;
1260 if (flags & CAPI_DMP_FNAME)
1261 {
1262 char *fname;
1263 fname = capi_cert_get_fname(ctx, cert);
1264 if (fname)
1265 {
1266 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1267 OPENSSL_free(fname);
1268 }
1269 else
1270 BIO_printf(out, " <No Friendly Name>\n");
1271 }
1272
1273 p = cert->pbCertEncoded;
1274 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1275 if (!x)
1276 BIO_printf(out, " <Can't parse certificate>\n");
1277 if (flags & CAPI_DMP_SUMMARY)
1278 {
1279 BIO_printf(out, " Subject: ");
1280 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1281 BIO_printf(out, "\n Issuer: ");
1282 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1283 BIO_printf(out, "\n");
1284 }
1285 if (flags & CAPI_DMP_FULL)
1286 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1287
1288 if (flags & CAPI_DMP_PKEYINFO)
1289 {
1290 CRYPT_KEY_PROV_INFO *pinfo;
1291 pinfo = capi_get_prov_info(ctx, cert);
1292 capi_dump_prov_info(ctx, out, pinfo);
1293 if (pinfo)
1294 OPENSSL_free(pinfo);
1295 }
1296
1297 if (flags & CAPI_DMP_PEM)
1298 PEM_write_bio_X509(out, x);
1299 X509_free(x);
1300 }
1301
1302 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1303 {
1304 HCERTSTORE hstore;
1305
1306 if (!storename)
1307 storename = ctx->storename;
1308 if (!storename)
1309 storename = "MY";
1310 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1311
1312 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1313 ctx->store_flags, storename);
1314 if (!hstore)
1315 {
1316 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1317 capi_addlasterror();
1318 }
1319 return hstore;
1320 }
1321
1322 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1323 {
1324 char *storename;
1325 int idx;
1326 int ret = 1;
1327 HCERTSTORE hstore;
1328 PCCERT_CONTEXT cert = NULL;
1329
1330 storename = ctx->storename;
1331 if (!storename)
1332 storename = "MY";
1333 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1334
1335 hstore = capi_open_store(ctx, storename);
1336 if (!hstore)
1337 return 0;
1338 if (id)
1339 {
1340 cert = capi_find_cert(ctx, id, hstore);
1341 if (!cert)
1342 {
1343 ret = 0;
1344 goto err;
1345 }
1346 capi_dump_cert(ctx, out, cert);
1347 CertFreeCertificateContext(cert);
1348 }
1349 else
1350 {
1351 for(idx = 0;;idx++)
1352 {
1353 LPWSTR fname = NULL;
1354 cert = CertEnumCertificatesInStore(hstore, cert);
1355 if (!cert)
1356 break;
1357 BIO_printf(out, "Certificate %d\n", idx);
1358 capi_dump_cert(ctx, out, cert);
1359 }
1360 }
1361 err:
1362 CertCloseStore(hstore, 0);
1363 return ret;
1364 }
1365
1366 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1367 {
1368 PCCERT_CONTEXT cert = NULL;
1369 char *fname = NULL;
1370 int match;
1371 switch(ctx->lookup_method)
1372 {
1373 case CAPI_LU_SUBSTR:
1374 return CertFindCertificateInStore(hstore,
1375 X509_ASN_ENCODING, 0,
1376 CERT_FIND_SUBJECT_STR_A, id, NULL);
1377 case CAPI_LU_FNAME:
1378 for(;;)
1379 {
1380 cert = CertEnumCertificatesInStore(hstore, cert);
1381 if (!cert)
1382 return NULL;
1383 fname = capi_cert_get_fname(ctx, cert);
1384 if (fname)
1385 {
1386 if (strcmp(fname, id))
1387 match = 0;
1388 else
1389 match = 1;
1390 OPENSSL_free(fname);
1391 if (match)
1392 return cert;
1393 }
1394 }
1395 default:
1396 return NULL;
1397 }
1398 }
1399
1400 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1401 {
1402 CAPI_KEY *key;
1403 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1404 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1405 contname, provname, ptype);
1406 if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, 0))
1407 {
1408 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1409 capi_addlasterror();
1410 goto err;
1411 }
1412 if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1413 {
1414 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1415 capi_addlasterror();
1416 CryptReleaseContext(key->hprov, 0);
1417 goto err;
1418 }
1419 key->keyspec = keyspec;
1420 key->pcert = NULL;
1421 return key;
1422
1423 err:
1424 OPENSSL_free(key);
1425 return NULL;
1426 }
1427
1428 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1429 {
1430 CAPI_KEY *key = NULL;
1431 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1432 char *provname = NULL, *contname = NULL;
1433 pinfo = capi_get_prov_info(ctx, cert);
1434 if (!pinfo)
1435 goto err;
1436 provname = wide_to_asc(pinfo->pwszProvName);
1437 contname = wide_to_asc(pinfo->pwszContainerName);
1438 if (!provname || !contname)
1439 goto err;
1440 key = capi_get_key(ctx, contname, provname,
1441 pinfo->dwProvType, pinfo->dwKeySpec);
1442
1443 err:
1444 if (pinfo)
1445 OPENSSL_free(pinfo);
1446 if (provname)
1447 OPENSSL_free(provname);
1448 if (contname)
1449 OPENSSL_free(contname);
1450 return key;
1451 }
1452
1453 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1454 {
1455 PCCERT_CONTEXT cert;
1456 HCERTSTORE hstore;
1457 CAPI_KEY *key = NULL;
1458 switch (ctx->lookup_method)
1459 {
1460 case CAPI_LU_SUBSTR:
1461 case CAPI_LU_FNAME:
1462 hstore = capi_open_store(ctx, NULL);
1463 if (!hstore)
1464 return NULL;
1465 cert = capi_find_cert(ctx, id, hstore);
1466 if (cert)
1467 {
1468 key = capi_get_cert_key(ctx, cert);
1469 CertFreeCertificateContext(cert);
1470 }
1471 CertCloseStore(hstore, 0);
1472 break;
1473
1474 case CAPI_LU_CONTNAME:
1475 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
1476 ctx->keytype);
1477 break;
1478 }
1479
1480 return key;
1481 }
1482
1483 void capi_free_key(CAPI_KEY *key)
1484 {
1485 if (!key)
1486 return;
1487 CryptDestroyKey(key->key);
1488 CryptReleaseContext(key->hprov, 0);
1489 if (key->pcert)
1490 CertFreeCertificateContext(key->pcert);
1491 OPENSSL_free(key);
1492 }
1493
1494
1495 /* Initialize a CAPI_CTX structure */
1496
1497 static CAPI_CTX *capi_ctx_new()
1498 {
1499 CAPI_CTX *ctx;
1500 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1501 if (!ctx)
1502 {
1503 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1504 return NULL;
1505 }
1506 ctx->cspname = NULL;
1507 ctx->csptype = PROV_RSA_FULL;
1508 ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1509 ctx->keytype = AT_KEYEXCHANGE;
1510 ctx->storename = NULL;
1511 ctx->ssl_client_store = NULL;
1512 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1513 CERT_STORE_READONLY_FLAG |
1514 CERT_SYSTEM_STORE_CURRENT_USER;
1515 ctx->lookup_method = CAPI_LU_SUBSTR;
1516 ctx->debug_level = 0;
1517 ctx->debug_file = NULL;
1518 ctx->client_cert_select = cert_select_simple;
1519 return ctx;
1520 }
1521
1522 static void capi_ctx_free(CAPI_CTX *ctx)
1523 {
1524 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1525 if (!ctx)
1526 return;
1527 if (ctx->cspname)
1528 OPENSSL_free(ctx->cspname);
1529 if (ctx->debug_file)
1530 OPENSSL_free(ctx->debug_file);
1531 if (ctx->storename)
1532 OPENSSL_free(ctx->storename);
1533 if (ctx->ssl_client_store)
1534 OPENSSL_free(ctx->ssl_client_store);
1535 OPENSSL_free(ctx);
1536 }
1537
1538 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1539 {
1540 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1541 if (check)
1542 {
1543 HCRYPTPROV hprov;
1544 if (!CryptAcquireContextA(&hprov, NULL, pname, type,
1545 CRYPT_VERIFYCONTEXT))
1546 {
1547 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1548 capi_addlasterror();
1549 return 0;
1550 }
1551 CryptReleaseContext(hprov, 0);
1552 }
1553 ctx->cspname = BUF_strdup(pname);
1554 ctx->csptype = type;
1555 return 1;
1556 }
1557
1558 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1559 {
1560 LPSTR pname;
1561 DWORD type;
1562 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1563 return 0;
1564 return capi_ctx_set_provname(ctx, pname, type, 0);
1565 }
1566
1567 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1568 {
1569 int i;
1570 X509_NAME *nm;
1571 /* Special case: empty list: match anything */
1572 if (sk_X509_NAME_num(ca_dn) <= 0)
1573 return 1;
1574 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
1575 {
1576 nm = sk_X509_NAME_value(ca_dn, i);
1577 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1578 return 1;
1579 }
1580 return 0;
1581 }
1582
1583
1584
1585 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1586 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
1587 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
1588 {
1589 STACK_OF(X509) *certs = NULL;
1590 X509 *x;
1591 char *storename;
1592 const char *p;
1593 int i, client_cert_idx;
1594 HCERTSTORE hstore;
1595 PCCERT_CONTEXT cert = NULL, excert = NULL;
1596 CAPI_CTX *ctx;
1597 CAPI_KEY *key;
1598 ctx = ENGINE_get_ex_data(e, capi_idx);
1599
1600 *pcert = NULL;
1601 *pkey = NULL;
1602
1603 storename = ctx->ssl_client_store;
1604 if (!storename)
1605 storename = "MY";
1606
1607 hstore = capi_open_store(ctx, storename);
1608 if (!hstore)
1609 return 0;
1610 /* Enumerate all certificates collect any matches */
1611 for(i = 0;;i++)
1612 {
1613 cert = CertEnumCertificatesInStore(hstore, cert);
1614 if (!cert)
1615 break;
1616 p = cert->pbCertEncoded;
1617 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1618 if (!x)
1619 {
1620 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1621 continue;
1622 }
1623 if (cert_issuer_match(ca_dn, x)
1624 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0))
1625 {
1626 key = capi_get_cert_key(ctx, cert);
1627 if (!key)
1628 {
1629 X509_free(x);
1630 continue;
1631 }
1632 /* Match found: attach extra data to it so
1633 * we can retrieve the key later.
1634 */
1635 excert = CertDuplicateCertificateContext(cert);
1636 key->pcert = excert;
1637 X509_set_ex_data(x, cert_capi_idx, key);
1638
1639 if (!certs)
1640 certs = sk_X509_new_null();
1641
1642 sk_X509_push(certs, x);
1643 }
1644 else
1645 X509_free(x);
1646
1647 }
1648
1649 if (cert)
1650 CertFreeCertificateContext(cert);
1651 if (hstore)
1652 CertCloseStore(hstore, 0);
1653
1654 if (!certs)
1655 return 0;
1656
1657
1658 /* Select the appropriate certificate */
1659
1660 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1661
1662 /* Set the selected certificate and free the rest */
1663
1664 for(i = 0; i < sk_X509_num(certs); i++)
1665 {
1666 x = sk_X509_value(certs, i);
1667 if (i == client_cert_idx)
1668 *pcert = x;
1669 else
1670 {
1671 key = X509_get_ex_data(x, cert_capi_idx);
1672 capi_free_key(key);
1673 X509_free(x);
1674 }
1675 }
1676
1677 sk_X509_free(certs);
1678
1679 if (!*pcert)
1680 return 0;
1681
1682 /* Setup key for selected certificate */
1683
1684 key = X509_get_ex_data(*pcert, cert_capi_idx);
1685 *pkey = capi_get_pkey(e, key);
1686 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1687
1688 return 1;
1689
1690 }
1691
1692
1693 /* Simple client cert selection function: always select first */
1694
1695 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1696 {
1697 return 0;
1698 }
1699
1700 #ifdef OPENSSL_CAPIENG_DIALOG
1701
1702 /* More complex cert selection function, using standard function
1703 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1704 */
1705
1706 /* Definitions which are in cryptuiapi.h but this is not present in older
1707 * versions of headers.
1708 */
1709
1710 #ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1711 #define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1712 #define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1713 #endif
1714
1715 #define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1716 #define dlg_prompt L"Select a certificate to use for authentication"
1717 #define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1718 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1719
1720 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1721 {
1722 X509 *x;
1723 HCERTSTORE dstore;
1724 PCCERT_CONTEXT cert;
1725 CAPI_CTX *ctx;
1726 CAPI_KEY *key;
1727 HWND hwnd;
1728 int i, idx = -1;
1729 if (sk_X509_num(certs) == 1)
1730 return 0;
1731 ctx = ENGINE_get_ex_data(e, capi_idx);
1732 /* Create an in memory store of certificates */
1733 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1734 CERT_STORE_CREATE_NEW_FLAG, NULL);
1735 if (!dstore)
1736 {
1737 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1738 capi_addlasterror();
1739 goto err;
1740 }
1741 /* Add all certificates to store */
1742 for(i = 0; i < sk_X509_num(certs); i++)
1743 {
1744 x = sk_X509_value(certs, i);
1745 key = X509_get_ex_data(x, cert_capi_idx);
1746
1747 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1748 CERT_STORE_ADD_NEW, NULL))
1749 {
1750 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1751 capi_addlasterror();
1752 goto err;
1753 }
1754
1755 }
1756 hwnd = GetForegroundWindow();
1757 if (!hwnd)
1758 hwnd = GetActiveWindow();
1759 if (!hwnd && ctx->getconswindow)
1760 hwnd = ctx->getconswindow();
1761 /* Call dialog to select one */
1762 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1763 dlg_columns, 0, NULL);
1764
1765 /* Find matching cert from list */
1766 if (cert)
1767 {
1768 for(i = 0; i < sk_X509_num(certs); i++)
1769 {
1770 x = sk_X509_value(certs, i);
1771 key = X509_get_ex_data(x, cert_capi_idx);
1772 if (CertCompareCertificate(
1773 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1774 cert->pCertInfo,
1775 key->pcert->pCertInfo))
1776 {
1777 idx = i;
1778 break;
1779 }
1780 }
1781 }
1782
1783 err:
1784 if (dstore)
1785 CertCloseStore(dstore, 0);
1786 return idx;
1787
1788 }
1789 #endif
1790
1791 #endif
1792 #else /* !WIN32 */
1793 #include <openssl/engine.h>
1794 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
1795 OPENSSL_EXPORT
1796 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
1797 IMPLEMENT_DYNAMIC_CHECK_FN()
1798 #endif
1799 #endif
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