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[netbsd-mini2440.git] / crypto / external / bsd / openssl / dist / engines / e_capi.c
blobfd7f13ca2cfc5ffbd949a9a316ce0419dc774618
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 #include <openssl/engine.h>
87 #include <openssl/pem.h>
88 #include <openssl/x509v3.h>
89
90 #include "e_capi_err.h"
91 #include "e_capi_err.c"
92
93
94 static const char *engine_capi_id = "capi";
95 static const char *engine_capi_name = "CryptoAPI ENGINE";
96
97 typedef struct CAPI_CTX_st CAPI_CTX;
98 typedef struct CAPI_KEY_st CAPI_KEY;
99
100 static void capi_addlasterror(void);
101 static void capi_adderror(DWORD err);
102
103 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
104
105 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
106 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
107 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
108 void capi_free_key(CAPI_KEY *key);
109
110 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
111
112 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
113
114 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
115 UI_METHOD *ui_method, void *callback_data);
116 static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
117 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
118 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
119 unsigned char *to, RSA *rsa, int padding);
120 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
121 unsigned char *to, RSA *rsa, int padding);
122 static int capi_rsa_free(RSA *rsa);
123
124 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
125 DSA *dsa);
126 static int capi_dsa_free(DSA *dsa);
127
128 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
129 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
130 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
131
132 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
133 #ifdef OPENSSL_CAPIENG_DIALOG
134 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
135 #endif
136
137 typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
138 LPCWSTR, DWORD, DWORD,
139 void *);
140 typedef HWND (WINAPI *GETCONSWIN)(void);
141
142 /* This structure contains CAPI ENGINE specific data:
143 * it contains various global options and affects how
144 * other functions behave.
145 */
146
147 #define CAPI_DBG_TRACE 2
148 #define CAPI_DBG_ERROR 1
149
150 struct CAPI_CTX_st {
151 int debug_level;
152 char *debug_file;
153 /* Parameters to use for container lookup */
154 DWORD keytype;
155 LPSTR cspname;
156 DWORD csptype;
157 /* Certificate store name to use */
158 LPSTR storename;
159 LPSTR ssl_client_store;
160 /* System store flags */
161 DWORD store_flags;
162
163 /* Lookup string meanings in load_private_key */
164 /* Substring of subject: uses "storename" */
165 #define CAPI_LU_SUBSTR 1
166 /* Friendly name: uses storename */
167 #define CAPI_LU_FNAME 2
168 /* Container name: uses cspname, keytype */
169 #define CAPI_LU_CONTNAME 3
170 int lookup_method;
171 /* Info to dump with dumpcerts option */
172 /* Issuer and serial name strings */
173 #define CAPI_DMP_SUMMARY 0x1
174 /* Friendly name */
175 #define CAPI_DMP_FNAME 0x2
176 /* Full X509_print dump */
177 #define CAPI_DMP_FULL 0x4
178 /* Dump PEM format certificate */
179 #define CAPI_DMP_PEM 0x8
180 /* Dump pseudo key (if possible) */
181 #define CAPI_DMP_PSKEY 0x10
182 /* Dump key info (if possible) */
183 #define CAPI_DMP_PKEYINFO 0x20
184
185 DWORD dump_flags;
186 int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
187
188 CERTDLG certselectdlg;
189 GETCONSWIN getconswindow;
190 };
191
192
193 static CAPI_CTX *capi_ctx_new();
194 static void capi_ctx_free(CAPI_CTX *ctx);
195 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
196 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
197
198 #define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
199 #define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
200 #define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
201 #define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
202 #define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
203 #define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
204 #define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
205 #define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
206 #define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
207 #define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
208 #define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
209 #define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
210 #define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
211 #define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
212
213 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
214 {CAPI_CMD_LIST_CERTS,
215 "list_certs",
216 "List all certificates in store",
217 ENGINE_CMD_FLAG_NO_INPUT},
218 {CAPI_CMD_LOOKUP_CERT,
219 "lookup_cert",
220 "Lookup and output certificates",
221 ENGINE_CMD_FLAG_STRING},
222 {CAPI_CMD_DEBUG_LEVEL,
223 "debug_level",
224 "debug level (1=errors, 2=trace)",
225 ENGINE_CMD_FLAG_NUMERIC},
226 {CAPI_CMD_DEBUG_FILE,
227 "debug_file",
228 "debugging filename)",
229 ENGINE_CMD_FLAG_STRING},
230 {CAPI_CMD_KEYTYPE,
231 "key_type",
232 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
233 ENGINE_CMD_FLAG_NUMERIC},
234 {CAPI_CMD_LIST_CSPS,
235 "list_csps",
236 "List all CSPs",
237 ENGINE_CMD_FLAG_NO_INPUT},
238 {CAPI_CMD_SET_CSP_IDX,
239 "csp_idx",
240 "Set CSP by index",
241 ENGINE_CMD_FLAG_NUMERIC},
242 {CAPI_CMD_SET_CSP_NAME,
243 "csp_name",
244 "Set CSP name, (default CSP used if not specified)",
245 ENGINE_CMD_FLAG_STRING},
246 {CAPI_CMD_SET_CSP_TYPE,
247 "csp_type",
248 "Set CSP type, (default RSA_PROV_FULL)",
249 ENGINE_CMD_FLAG_NUMERIC},
250 {CAPI_CMD_LIST_CONTAINERS,
251 "list_containers",
252 "list container names",
253 ENGINE_CMD_FLAG_NO_INPUT},
254 {CAPI_CMD_LIST_OPTIONS,
255 "list_options",
256 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
257 "32=private key info)",
258 ENGINE_CMD_FLAG_NUMERIC},
259 {CAPI_CMD_LOOKUP_METHOD,
260 "lookup_method",
261 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
262 ENGINE_CMD_FLAG_NUMERIC},
263 {CAPI_CMD_STORE_NAME,
264 "store_name",
265 "certificate store name, default \"MY\"",
266 ENGINE_CMD_FLAG_STRING},
267 {CAPI_CMD_STORE_FLAGS,
268 "store_flags",
269 "Certificate store flags: 1 = system store",
270 ENGINE_CMD_FLAG_NUMERIC},
271
272 {0, NULL, NULL, 0}
273 };
274
275 static int capi_idx = -1;
276 static int rsa_capi_idx = -1;
277 static int dsa_capi_idx = -1;
278 static int cert_capi_idx = -1;
279
280 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
281 {
282 int ret = 1;
283 CAPI_CTX *ctx;
284 BIO *out;
285 if (capi_idx == -1)
286 {
287 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
288 return 0;
289 }
290 ctx = ENGINE_get_ex_data(e, capi_idx);
291 out = BIO_new_fp(stdout, BIO_NOCLOSE);
292 switch (cmd)
293 {
294 case CAPI_CMD_LIST_CSPS:
295 ret = capi_list_providers(ctx, out);
296 break;
297
298 case CAPI_CMD_LIST_CERTS:
299 ret = capi_list_certs(ctx, out, NULL);
300 break;
301
302 case CAPI_CMD_LOOKUP_CERT:
303 ret = capi_list_certs(ctx, out, p);
304 break;
305
306 case CAPI_CMD_LIST_CONTAINERS:
307 ret = capi_list_containers(ctx, out);
308 break;
309
310 case CAPI_CMD_STORE_NAME:
311 if (ctx->storename)
312 OPENSSL_free(ctx->storename);
313 ctx->storename = BUF_strdup(p);
314 CAPI_trace(ctx, "Setting store name to %s\n", p);
315 break;
316
317 case CAPI_CMD_STORE_FLAGS:
318 if (i & 1)
319 {
320 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
321 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
322 }
323 else
324 {
325 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
326 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
327 }
328 CAPI_trace(ctx, "Setting flags to %d\n", i);
329 break;
330
331 case CAPI_CMD_DEBUG_LEVEL:
332 ctx->debug_level = (int)i;
333 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
334 break;
335
336 case CAPI_CMD_DEBUG_FILE:
337 ctx->debug_file = BUF_strdup(p);
338 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
339 break;
340
341 case CAPI_CMD_KEYTYPE:
342 ctx->keytype = i;
343 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
344 break;
345
346 case CAPI_CMD_SET_CSP_IDX:
347 ret = capi_ctx_set_provname_idx(ctx, i);
348 break;
349
350 case CAPI_CMD_LIST_OPTIONS:
351 ctx->dump_flags = i;
352 break;
353
354 case CAPI_CMD_LOOKUP_METHOD:
355 if (i < 1 || i > 3)
356 {
357 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
358 return 0;
359 }
360 ctx->lookup_method = i;
361 break;
362
363 case CAPI_CMD_SET_CSP_NAME:
364 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
365 break;
366
367 case CAPI_CMD_SET_CSP_TYPE:
368 ctx->csptype = i;
369 break;
370
371 default:
372 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
373 ret = 0;
374 }
375
376 BIO_free(out);
377 return ret;
378
379 }
380
381 static RSA_METHOD capi_rsa_method =
382 {
383 "CryptoAPI RSA method",
384 0, /* pub_enc */
385 0, /* pub_dec */
386 capi_rsa_priv_enc, /* priv_enc */
387 capi_rsa_priv_dec, /* priv_dec */
388 0, /* rsa_mod_exp */
389 0, /* bn_mod_exp */
390 0, /* init */
391 capi_rsa_free, /* finish */
392 RSA_FLAG_SIGN_VER, /* flags */
393 NULL, /* app_data */
394 capi_rsa_sign, /* rsa_sign */
395 0 /* rsa_verify */
396 };
397
398 static DSA_METHOD capi_dsa_method =
399 {
400 "CryptoAPI DSA method",
401 capi_dsa_do_sign, /* dsa_do_sign */
402 0, /* dsa_sign_setup */
403 0, /* dsa_do_verify */
404 0, /* dsa_mod_exp */
405 0, /* bn_mod_exp */
406 0, /* init */
407 capi_dsa_free, /* finish */
408 0, /* flags */
409 NULL, /* app_data */
410 0, /* dsa_paramgen */
411 0 /* dsa_keygen */
412 };
413
414 static int capi_init(ENGINE *e)
415 {
416 CAPI_CTX *ctx;
417 const RSA_METHOD *ossl_rsa_meth;
418 const DSA_METHOD *ossl_dsa_meth;
419 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
420 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
421
422 ctx = capi_ctx_new();
423 if (!ctx || (capi_idx < 0))
424 goto memerr;
425
426 ENGINE_set_ex_data(e, capi_idx, ctx);
427 /* Setup RSA_METHOD */
428 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
429 ossl_rsa_meth = RSA_PKCS1_SSLeay();
430 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
431 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
432 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
433 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
434
435 /* Setup DSA Method */
436 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
437 ossl_dsa_meth = DSA_OpenSSL();
438 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
439 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
440 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
441
442 #ifdef OPENSSL_CAPIENG_DIALOG
443 {
444 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
445 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
446 if (cryptui)
447 ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore");
448 if (kernel)
449 ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow");
450 if (cryptui && !OPENSSL_isservice())
451 ctx->client_cert_select = cert_select_dialog;
452 }
453 #endif
454
455
456 return 1;
457
458 memerr:
459 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
460 return 0;
461
462 return 1;
463 }
464
465 static int capi_destroy(ENGINE *e)
466 {
467 ERR_unload_CAPI_strings();
468 return 1;
469 }
470
471 static int capi_finish(ENGINE *e)
472 {
473 CAPI_CTX *ctx;
474 ctx = ENGINE_get_ex_data(e, capi_idx);
475 capi_ctx_free(ctx);
476 ENGINE_set_ex_data(e, capi_idx, NULL);
477 return 1;
478 }
479
480
481 /* CryptoAPI key application data. This contains
482 * a handle to the private key container (for sign operations)
483 * and a handle to the key (for decrypt operations).
484 */
485
486 struct CAPI_KEY_st
487 {
488 /* Associated certificate context (if any) */
489 PCCERT_CONTEXT pcert;
490 HCRYPTPROV hprov;
491 HCRYPTKEY key;
492 DWORD keyspec;
493 };
494
495 static int bind_capi(ENGINE *e)
496 {
497 if (!ENGINE_set_id(e, engine_capi_id)
498 || !ENGINE_set_name(e, engine_capi_name)
499 || !ENGINE_set_init_function(e, capi_init)
500 || !ENGINE_set_finish_function(e, capi_finish)
501 || !ENGINE_set_destroy_function(e, capi_destroy)
502 || !ENGINE_set_RSA(e, &capi_rsa_method)
503 || !ENGINE_set_DSA(e, &capi_dsa_method)
504 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
505 || !ENGINE_set_load_ssl_client_cert_function(e,
506 capi_load_ssl_client_cert)
507 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
508 || !ENGINE_set_ctrl_function(e, capi_ctrl))
509 return 0;
510 ERR_load_CAPI_strings();
511
512 return 1;
513
514 }
515
516 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
517 static int bind_helper(ENGINE *e, const char *id)
518 {
519 if(id && (strcmp(id, engine_capi_id) != 0))
520 return 0;
521 if(!bind_capi(e))
522 return 0;
523 return 1;
524 }
525 IMPLEMENT_DYNAMIC_CHECK_FN()
526 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
527 #else
528 static ENGINE *engine_capi(void)
529 {
530 ENGINE *ret = ENGINE_new();
531 if(!ret)
532 return NULL;
533 if(!bind_capi(ret))
534 {
535 ENGINE_free(ret);
536 return NULL;
537 }
538 return ret;
539 }
540
541 void ENGINE_load_capi(void)
542 {
543 /* Copied from eng_[openssl|dyn].c */
544 ENGINE *toadd = engine_capi();
545 if(!toadd) return;
546 ENGINE_add(toadd);
547 ENGINE_free(toadd);
548 ERR_clear_error();
549 }
550 #endif
551
552
553 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
554 {
555 int i;
556 /* Reverse buffer in place: since this is a keyblob structure
557 * that will be freed up after conversion anyway it doesn't
558 * matter if we change it.
559 */
560 for(i = 0; i < binlen / 2; i++)
561 {
562 unsigned char c;
563 c = bin[i];
564 bin[i] = bin[binlen - i - 1];
565 bin[binlen - i - 1] = c;
566 }
567
568 if (!BN_bin2bn(bin, binlen, bn))
569 return 0;
570 return 1;
571 }
572
573 /* Given a CAPI_KEY get an EVP_PKEY structure */
574
575 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
576 {
577 unsigned char *pubkey = NULL;
578 DWORD len;
579 BLOBHEADER *bh;
580 RSA *rkey = NULL;
581 DSA *dkey = NULL;
582 EVP_PKEY *ret = NULL;
583 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
584 {
585 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
586 capi_addlasterror();
587 return NULL;
588 }
589
590 pubkey = OPENSSL_malloc(len);
591
592 if (!pubkey)
593 goto memerr;
594
595 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
596 {
597 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
598 capi_addlasterror();
599 goto err;
600 }
601
602 bh = (BLOBHEADER *)pubkey;
603 if (bh->bType != PUBLICKEYBLOB)
604 {
605 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
606 goto err;
607 }
608 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
609 {
610 RSAPUBKEY *rp;
611 DWORD rsa_modlen;
612 unsigned char *rsa_modulus;
613 rp = (RSAPUBKEY *)(bh + 1);
614 if (rp->magic != 0x31415352)
615 {
616 char magstr[10];
617 BIO_snprintf(magstr, 10, "%lx", rp->magic);
618 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
619 ERR_add_error_data(2, "magic=0x", magstr);
620 goto err;
621 }
622 rsa_modulus = (unsigned char *)(rp + 1);
623 rkey = RSA_new_method(eng);
624 if (!rkey)
625 goto memerr;
626
627 rkey->e = BN_new();
628 rkey->n = BN_new();
629
630 if (!rkey->e || !rkey->n)
631 goto memerr;
632
633 if (!BN_set_word(rkey->e, rp->pubexp))
634 goto memerr;
635
636 rsa_modlen = rp->bitlen / 8;
637 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
638 goto memerr;
639
640 RSA_set_ex_data(rkey, rsa_capi_idx, key);
641
642 if (!(ret = EVP_PKEY_new()))
643 goto memerr;
644
645 EVP_PKEY_assign_RSA(ret, rkey);
646 rkey = NULL;
647
648 }
649 else if (bh->aiKeyAlg == CALG_DSS_SIGN)
650 {
651 DSSPUBKEY *dp;
652 DWORD dsa_plen;
653 unsigned char *btmp;
654 dp = (DSSPUBKEY *)(bh + 1);
655 if (dp->magic != 0x31535344)
656 {
657 char magstr[10];
658 BIO_snprintf(magstr, 10, "%lx", dp->magic);
659 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
660 ERR_add_error_data(2, "magic=0x", magstr);
661 goto err;
662 }
663 dsa_plen = dp->bitlen / 8;
664 btmp = (unsigned char *)(dp + 1);
665 dkey = DSA_new_method(eng);
666 if (!dkey)
667 goto memerr;
668 dkey->p = BN_new();
669 dkey->q = BN_new();
670 dkey->g = BN_new();
671 dkey->pub_key = BN_new();
672 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
673 goto memerr;
674 if (!lend_tobn(dkey->p, btmp, dsa_plen))
675 goto memerr;
676 btmp += dsa_plen;
677 if (!lend_tobn(dkey->q, btmp, 20))
678 goto memerr;
679 btmp += 20;
680 if (!lend_tobn(dkey->g, btmp, dsa_plen))
681 goto memerr;
682 btmp += dsa_plen;
683 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
684 goto memerr;
685 btmp += dsa_plen;
686
687 DSA_set_ex_data(dkey, dsa_capi_idx, key);
688
689 if (!(ret = EVP_PKEY_new()))
690 goto memerr;
691
692 EVP_PKEY_assign_DSA(ret, dkey);
693 dkey = NULL;
694 }
695 else
696 {
697 char algstr[10];
698 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
699 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
700 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
701 goto err;
702 }
703
704
705 err:
706 if (pubkey)
707 OPENSSL_free(pubkey);
708 if (!ret)
709 {
710 if (rkey)
711 RSA_free(rkey);
712 if (dkey)
713 DSA_free(dkey);
714 }
715
716 return ret;
717
718 memerr:
719 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
720 goto err;
721
722 }
723
724 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
725 UI_METHOD *ui_method, void *callback_data)
726 {
727 CAPI_CTX *ctx;
728 CAPI_KEY *key;
729 EVP_PKEY *ret;
730 ctx = ENGINE_get_ex_data(eng, capi_idx);
731
732 if (!ctx)
733 {
734 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
735 return NULL;
736 }
737
738 key = capi_find_key(ctx, key_id);
739
740 if (!key)
741 return NULL;
742
743 ret = capi_get_pkey(eng, key);
744
745 if (!ret)
746 capi_free_key(key);
747 return ret;
748
749 }
750
751 /* CryptoAPI RSA operations */
752
753 int capi_rsa_priv_enc(int flen, const unsigned char *from,
754 unsigned char *to, RSA *rsa, int padding)
755 {
756 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
757 return -1;
758 }
759
760 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
761 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
762 {
763 ALG_ID alg;
764 HCRYPTHASH hash;
765 DWORD slen;
766 unsigned int i;
767 int ret = -1;
768 CAPI_KEY *capi_key;
769 CAPI_CTX *ctx;
770
771 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
772
773 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
774
775 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
776 if (!capi_key)
777 {
778 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
779 return -1;
780 }
781 /* Convert the signature type to a CryptoAPI algorithm ID */
782 switch(dtype)
783 {
784 case NID_sha1:
785 alg = CALG_SHA1;
786 break;
787
788 case NID_md5:
789 alg = CALG_MD5;
790 break;
791
792 case NID_md5_sha1:
793 alg = CALG_SSL3_SHAMD5;
794 break;
795 default:
796 {
797 char algstr[10];
798 BIO_snprintf(algstr, 10, "%lx", dtype);
799 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
800 ERR_add_error_data(2, "NID=0x", algstr);
801 return -1;
802 }
803 }
804
805
806
807 /* Create the hash object */
808 if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
809 {
810 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
811 capi_addlasterror();
812 return -1;
813 }
814 /* Set the hash value to the value passed */
815
816 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
817 {
818 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
819 capi_addlasterror();
820 goto err;
821 }
822
823
824 /* Finally sign it */
825 slen = RSA_size(rsa);
826 if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
827 {
828 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
829 capi_addlasterror();
830 goto err;
831 }
832 else
833 {
834 ret = 1;
835 /* Inplace byte reversal of signature */
836 for(i = 0; i < slen / 2; i++)
837 {
838 unsigned char c;
839 c = sigret[i];
840 sigret[i] = sigret[slen - i - 1];
841 sigret[slen - i - 1] = c;
842 }
843 *siglen = slen;
844 }
845
846 /* Now cleanup */
847
848 err:
849 CryptDestroyHash(hash);
850
851 return ret;
852 }
853
854 int capi_rsa_priv_dec(int flen, const unsigned char *from,
855 unsigned char *to, RSA *rsa, int padding)
856 {
857 int i;
858 unsigned char *tmpbuf;
859 CAPI_KEY *capi_key;
860 CAPI_CTX *ctx;
861 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
862
863 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
864
865
866 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
867 if (!capi_key)
868 {
869 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
870 return -1;
871 }
872
873 if(padding != RSA_PKCS1_PADDING)
874 {
875 char errstr[10];
876 BIO_snprintf(errstr, 10, "%d", padding);
877 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
878 ERR_add_error_data(2, "padding=", errstr);
879 return -1;
880 }
881
882 /* Create temp reverse order version of input */
883 if(!(tmpbuf = OPENSSL_malloc(flen)) )
884 {
885 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
886 return -1;
887 }
888 for(i = 0; i < flen; i++)
889 tmpbuf[flen - i - 1] = from[i];
890
891 /* Finally decrypt it */
892 if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
893 {
894 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
895 capi_addlasterror();
896 OPENSSL_free(tmpbuf);
897 return -1;
898 }
899 else 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 {
935 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
936 return NULL;
937 }
938
939 if (dlen != 20)
940 {
941 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
942 return NULL;
943 }
944
945 /* Create the hash object */
946 if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
947 {
948 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
949 capi_addlasterror();
950 return NULL;
951 }
952
953 /* Set the hash value to the value passed */
954 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
955 {
956 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
957 capi_addlasterror();
958 goto err;
959 }
960
961
962 /* Finally sign it */
963 slen = sizeof(csigbuf);
964 if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
965 {
966 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
967 capi_addlasterror();
968 goto err;
969 }
970 else
971 {
972 ret = DSA_SIG_new();
973 if (!ret)
974 goto err;
975 ret->r = BN_new();
976 ret->s = BN_new();
977 if (!ret->r || !ret->s)
978 goto err;
979 if (!lend_tobn(ret->r, csigbuf, 20)
980 || !lend_tobn(ret->s, csigbuf + 20, 20))
981 {
982 DSA_SIG_free(ret);
983 ret = NULL;
984 goto err;
985 }
986 }
987
988 /* Now cleanup */
989
990 err:
991 OPENSSL_cleanse(csigbuf, 40);
992 CryptDestroyHash(hash);
993 return ret;
994 }
995
996 static int capi_dsa_free(DSA *dsa)
997 {
998 CAPI_KEY *capi_key;
999 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1000 capi_free_key(capi_key);
1001 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1002 return 1;
1003 }
1004
1005 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
1006 {
1007 BIO *out;
1008
1009 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1010 return;
1011 out = BIO_new_file(ctx->debug_file, "a+");
1012 BIO_vprintf(out, format, argptr);
1013 BIO_free(out);
1014 }
1015
1016 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1017 {
1018 va_list args;
1019 va_start(args, format);
1020 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1021 va_end(args);
1022 }
1023
1024 static void capi_addlasterror(void)
1025 {
1026 capi_adderror(GetLastError());
1027 }
1028
1029 static void capi_adderror(DWORD err)
1030 {
1031 char errstr[10];
1032 BIO_snprintf(errstr, 10, "%lX", err);
1033 ERR_add_error_data(2, "Error code= 0x", errstr);
1034 }
1035
1036 static char *wide_to_asc(LPWSTR wstr)
1037 {
1038 char *str;
1039 int len_0,sz;
1040
1041 if (!wstr)
1042 return NULL;
1043 len_0 = (int)wcslen(wstr)+1; /* WideCharToMultiByte expects int */
1044 sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL);
1045 if (!sz)
1046 {
1047 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1048 return NULL;
1049 }
1050 str = OPENSSL_malloc(sz);
1051 if (!str)
1052 {
1053 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1054 return NULL;
1055 }
1056 if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL))
1057 {
1058 OPENSSL_free(str);
1059 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1060 return NULL;
1061 }
1062 return str;
1063 }
1064
1065 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
1066 {
1067 LPSTR name;
1068 DWORD len, err;
1069 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1070 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len))
1071 {
1072 err = GetLastError();
1073 if (err == ERROR_NO_MORE_ITEMS)
1074 return 2;
1075 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1076 capi_adderror(err);
1077 return 0;
1078 }
1079 name = OPENSSL_malloc(len);
1080 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len))
1081 {
1082 err = GetLastError();
1083 if (err == ERROR_NO_MORE_ITEMS)
1084 return 2;
1085 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1086 capi_adderror(err);
1087 return 0;
1088 }
1089 *pname = name;
1090 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
1091
1092 return 1;
1093 }
1094
1095 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1096 {
1097 DWORD idx, ptype;
1098 int ret;
1099 LPSTR provname = NULL;
1100 CAPI_trace(ctx, "capi_list_providers\n");
1101 BIO_printf(out, "Available CSPs:\n");
1102 for(idx = 0; ; idx++)
1103 {
1104 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1105 if (ret == 2)
1106 break;
1107 if (ret == 0)
1108 break;
1109 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1110 OPENSSL_free(provname);
1111 }
1112 return 1;
1113 }
1114
1115 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1116 {
1117 int ret = 1;
1118 HCRYPTPROV hprov;
1119 DWORD err, idx, flags, buflen = 0, clen;
1120 LPSTR cname;
1121 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
1122 if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
1123 {
1124 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1125 capi_addlasterror();
1126 return 0;
1127 }
1128 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1129 {
1130 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1131 capi_addlasterror();
1132 return 0;
1133 }
1134 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1135 if (buflen == 0)
1136 buflen = 1024;
1137 cname = OPENSSL_malloc(buflen);
1138 if (!cname)
1139 {
1140 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1141 goto err;
1142 }
1143
1144 for (idx = 0;;idx++)
1145 {
1146 clen = buflen;
1147 cname[0] = 0;
1148
1149 if (idx == 0)
1150 flags = CRYPT_FIRST;
1151 else
1152 flags = 0;
1153 if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1154 {
1155 err = GetLastError();
1156 if (err == ERROR_NO_MORE_ITEMS)
1157 goto done;
1158 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1159 capi_adderror(err);
1160 goto err;
1161 }
1162 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1163 if (!cname[0] && (clen == buflen))
1164 {
1165 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1166 goto done;
1167 }
1168 BIO_printf(out, "%d. %s\n", idx, cname);
1169 }
1170 err:
1171
1172 ret = 0;
1173
1174 done:
1175 if (cname)
1176 OPENSSL_free(cname);
1177 CryptReleaseContext(hprov, 0);
1178
1179 return ret;
1180 }
1181
1182 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1183 {
1184 DWORD len;
1185 CRYPT_KEY_PROV_INFO *pinfo;
1186
1187 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1188 return NULL;
1189 pinfo = OPENSSL_malloc(len);
1190 if (!pinfo)
1191 {
1192 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1193 return NULL;
1194 }
1195 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1196 {
1197 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1198 capi_addlasterror();
1199 OPENSSL_free(pinfo);
1200 return NULL;
1201 }
1202 return pinfo;
1203 }
1204
1205 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1206 {
1207 char *provname = NULL, *contname = NULL;
1208 if (!pinfo)
1209 {
1210 BIO_printf(out, " No Private Key\n");
1211 return;
1212 }
1213 provname = wide_to_asc(pinfo->pwszProvName);
1214 contname = wide_to_asc(pinfo->pwszContainerName);
1215 if (!provname || !contname)
1216 goto err;
1217
1218 BIO_printf(out, " Private Key Info:\n");
1219 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname, pinfo->dwProvType);
1220 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1221 err:
1222 if (provname)
1223 OPENSSL_free(provname);
1224 if (contname)
1225 OPENSSL_free(contname);
1226 }
1227
1228 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1229 {
1230 LPWSTR wfname;
1231 DWORD dlen;
1232
1233 CAPI_trace(ctx, "capi_cert_get_fname\n");
1234 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1235 return NULL;
1236 wfname = OPENSSL_malloc(dlen);
1237 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1238 {
1239 char *fname = wide_to_asc(wfname);
1240 OPENSSL_free(wfname);
1241 return fname;
1242 }
1243 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1244 capi_addlasterror();
1245
1246 OPENSSL_free(wfname);
1247 return NULL;
1248 }
1249
1250
1251 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1252 {
1253 X509 *x;
1254 unsigned char *p;
1255 unsigned long flags = ctx->dump_flags;
1256 if (flags & CAPI_DMP_FNAME)
1257 {
1258 char *fname;
1259 fname = capi_cert_get_fname(ctx, cert);
1260 if (fname)
1261 {
1262 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1263 OPENSSL_free(fname);
1264 }
1265 else
1266 BIO_printf(out, " <No Friendly Name>\n");
1267 }
1268
1269 p = cert->pbCertEncoded;
1270 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1271 if (!x)
1272 BIO_printf(out, " <Can't parse certificate>\n");
1273 if (flags & CAPI_DMP_SUMMARY)
1274 {
1275 BIO_printf(out, " Subject: ");
1276 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1277 BIO_printf(out, "\n Issuer: ");
1278 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1279 BIO_printf(out, "\n");
1280 }
1281 if (flags & CAPI_DMP_FULL)
1282 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1283
1284 if (flags & CAPI_DMP_PKEYINFO)
1285 {
1286 CRYPT_KEY_PROV_INFO *pinfo;
1287 pinfo = capi_get_prov_info(ctx, cert);
1288 capi_dump_prov_info(ctx, out, pinfo);
1289 if (pinfo)
1290 OPENSSL_free(pinfo);
1291 }
1292
1293 if (flags & CAPI_DMP_PEM)
1294 PEM_write_bio_X509(out, x);
1295 X509_free(x);
1296 }
1297
1298 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1299 {
1300 HCERTSTORE hstore;
1301
1302 if (!storename)
1303 storename = ctx->storename;
1304 if (!storename)
1305 storename = "MY";
1306 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1307
1308 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1309 ctx->store_flags, storename);
1310 if (!hstore)
1311 {
1312 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1313 capi_addlasterror();
1314 }
1315 return hstore;
1316 }
1317
1318 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1319 {
1320 char *storename;
1321 int idx;
1322 int ret = 1;
1323 HCERTSTORE hstore;
1324 PCCERT_CONTEXT cert = NULL;
1325
1326 storename = ctx->storename;
1327 if (!storename)
1328 storename = "MY";
1329 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1330
1331 hstore = capi_open_store(ctx, storename);
1332 if (!hstore)
1333 return 0;
1334 if (id)
1335 {
1336 cert = capi_find_cert(ctx, id, hstore);
1337 if (!cert)
1338 {
1339 ret = 0;
1340 goto err;
1341 }
1342 capi_dump_cert(ctx, out, cert);
1343 CertFreeCertificateContext(cert);
1344 }
1345 else
1346 {
1347 for(idx = 0;;idx++)
1348 {
1349 LPWSTR fname = NULL;
1350 cert = CertEnumCertificatesInStore(hstore, cert);
1351 if (!cert)
1352 break;
1353 BIO_printf(out, "Certificate %d\n", idx);
1354 capi_dump_cert(ctx, out, cert);
1355 }
1356 }
1357 err:
1358 CertCloseStore(hstore, 0);
1359 return ret;
1360 }
1361
1362 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1363 {
1364 PCCERT_CONTEXT cert = NULL;
1365 char *fname = NULL;
1366 int match;
1367 switch(ctx->lookup_method)
1368 {
1369 case CAPI_LU_SUBSTR:
1370 return CertFindCertificateInStore(hstore,
1371 X509_ASN_ENCODING, 0,
1372 CERT_FIND_SUBJECT_STR_A, id, NULL);
1373 case CAPI_LU_FNAME:
1374 for(;;)
1375 {
1376 cert = CertEnumCertificatesInStore(hstore, cert);
1377 if (!cert)
1378 return NULL;
1379 fname = capi_cert_get_fname(ctx, cert);
1380 if (fname)
1381 {
1382 if (strcmp(fname, id))
1383 match = 0;
1384 else
1385 match = 1;
1386 OPENSSL_free(fname);
1387 if (match)
1388 return cert;
1389 }
1390 }
1391 default:
1392 return NULL;
1393 }
1394 }
1395
1396 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1397 {
1398 CAPI_KEY *key;
1399 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1400 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1401 contname, provname, ptype);
1402 if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, 0))
1403 {
1404 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1405 capi_addlasterror();
1406 goto err;
1407 }
1408 if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1409 {
1410 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1411 capi_addlasterror();
1412 CryptReleaseContext(key->hprov, 0);
1413 goto err;
1414 }
1415 key->keyspec = keyspec;
1416 key->pcert = NULL;
1417 return key;
1418
1419 err:
1420 OPENSSL_free(key);
1421 return NULL;
1422 }
1423
1424 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1425 {
1426 CAPI_KEY *key = NULL;
1427 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1428 char *provname = NULL, *contname = NULL;
1429 pinfo = capi_get_prov_info(ctx, cert);
1430 if (!pinfo)
1431 goto err;
1432 provname = wide_to_asc(pinfo->pwszProvName);
1433 contname = wide_to_asc(pinfo->pwszContainerName);
1434 if (!provname || !contname)
1435 goto err;
1436 key = capi_get_key(ctx, contname, provname,
1437 pinfo->dwProvType, pinfo->dwKeySpec);
1438
1439 err:
1440 if (pinfo)
1441 OPENSSL_free(pinfo);
1442 if (provname)
1443 OPENSSL_free(provname);
1444 if (contname)
1445 OPENSSL_free(contname);
1446 return key;
1447 }
1448
1449 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1450 {
1451 PCCERT_CONTEXT cert;
1452 HCERTSTORE hstore;
1453 CAPI_KEY *key = NULL;
1454 switch (ctx->lookup_method)
1455 {
1456 case CAPI_LU_SUBSTR:
1457 case CAPI_LU_FNAME:
1458 hstore = capi_open_store(ctx, NULL);
1459 if (!hstore)
1460 return NULL;
1461 cert = capi_find_cert(ctx, id, hstore);
1462 if (cert)
1463 {
1464 key = capi_get_cert_key(ctx, cert);
1465 CertFreeCertificateContext(cert);
1466 }
1467 CertCloseStore(hstore, 0);
1468 break;
1469
1470 case CAPI_LU_CONTNAME:
1471 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
1472 ctx->keytype);
1473 break;
1474 }
1475
1476 return key;
1477 }
1478
1479 void capi_free_key(CAPI_KEY *key)
1480 {
1481 if (!key)
1482 return;
1483 CryptDestroyKey(key->key);
1484 CryptReleaseContext(key->hprov, 0);
1485 if (key->pcert)
1486 CertFreeCertificateContext(key->pcert);
1487 OPENSSL_free(key);
1488 }
1489
1490
1491 /* Initialize a CAPI_CTX structure */
1492
1493 static CAPI_CTX *capi_ctx_new()
1494 {
1495 CAPI_CTX *ctx;
1496 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1497 if (!ctx)
1498 {
1499 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1500 return NULL;
1501 }
1502 ctx->cspname = NULL;
1503 ctx->csptype = PROV_RSA_FULL;
1504 ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1505 ctx->keytype = AT_KEYEXCHANGE;
1506 ctx->storename = NULL;
1507 ctx->ssl_client_store = NULL;
1508 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1509 CERT_STORE_READONLY_FLAG |
1510 CERT_SYSTEM_STORE_CURRENT_USER;
1511 ctx->lookup_method = CAPI_LU_SUBSTR;
1512 ctx->debug_level = 0;
1513 ctx->debug_file = NULL;
1514 ctx->client_cert_select = cert_select_simple;
1515 return ctx;
1516 }
1517
1518 static void capi_ctx_free(CAPI_CTX *ctx)
1519 {
1520 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1521 if (!ctx)
1522 return;
1523 if (ctx->cspname)
1524 OPENSSL_free(ctx->cspname);
1525 if (ctx->debug_file)
1526 OPENSSL_free(ctx->debug_file);
1527 if (ctx->storename)
1528 OPENSSL_free(ctx->storename);
1529 if (ctx->ssl_client_store)
1530 OPENSSL_free(ctx->ssl_client_store);
1531 OPENSSL_free(ctx);
1532 }
1533
1534 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1535 {
1536 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1537 if (check)
1538 {
1539 HCRYPTPROV hprov;
1540 if (!CryptAcquireContextA(&hprov, NULL, pname, type,
1541 CRYPT_VERIFYCONTEXT))
1542 {
1543 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1544 capi_addlasterror();
1545 return 0;
1546 }
1547 CryptReleaseContext(hprov, 0);
1548 }
1549 ctx->cspname = BUF_strdup(pname);
1550 ctx->csptype = type;
1551 return 1;
1552 }
1553
1554 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1555 {
1556 LPSTR pname;
1557 DWORD type;
1558 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1559 return 0;
1560 return capi_ctx_set_provname(ctx, pname, type, 0);
1561 }
1562
1563 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1564 {
1565 int i;
1566 X509_NAME *nm;
1567 /* Special case: empty list: match anything */
1568 if (sk_X509_NAME_num(ca_dn) <= 0)
1569 return 1;
1570 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
1571 {
1572 nm = sk_X509_NAME_value(ca_dn, i);
1573 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1574 return 1;
1575 }
1576 return 0;
1577 }
1578
1579
1580
1581 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1582 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
1583 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
1584 {
1585 STACK_OF(X509) *certs = NULL;
1586 X509 *x;
1587 char *storename;
1588 const char *p;
1589 int i, client_cert_idx;
1590 HCERTSTORE hstore;
1591 PCCERT_CONTEXT cert = NULL, excert = NULL;
1592 CAPI_CTX *ctx;
1593 CAPI_KEY *key;
1594 ctx = ENGINE_get_ex_data(e, capi_idx);
1595
1596 *pcert = NULL;
1597 *pkey = NULL;
1598
1599 storename = ctx->ssl_client_store;
1600 if (!storename)
1601 storename = "MY";
1602
1603 hstore = capi_open_store(ctx, storename);
1604 if (!hstore)
1605 return 0;
1606 /* Enumerate all certificates collect any matches */
1607 for(i = 0;;i++)
1608 {
1609 cert = CertEnumCertificatesInStore(hstore, cert);
1610 if (!cert)
1611 break;
1612 p = cert->pbCertEncoded;
1613 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1614 if (!x)
1615 {
1616 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1617 continue;
1618 }
1619 if (cert_issuer_match(ca_dn, x)
1620 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0))
1621 {
1622 key = capi_get_cert_key(ctx, cert);
1623 if (!key)
1624 {
1625 X509_free(x);
1626 continue;
1627 }
1628 /* Match found: attach extra data to it so
1629 * we can retrieve the key later.
1630 */
1631 excert = CertDuplicateCertificateContext(cert);
1632 key->pcert = excert;
1633 X509_set_ex_data(x, cert_capi_idx, key);
1634
1635 if (!certs)
1636 certs = sk_X509_new_null();
1637
1638 sk_X509_push(certs, x);
1639 }
1640 else
1641 X509_free(x);
1642
1643 }
1644
1645 if (cert)
1646 CertFreeCertificateContext(cert);
1647 if (hstore)
1648 CertCloseStore(hstore, 0);
1649
1650 if (!certs)
1651 return 0;
1652
1653
1654 /* Select the appropriate certificate */
1655
1656 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1657
1658 /* Set the selected certificate and free the rest */
1659
1660 for(i = 0; i < sk_X509_num(certs); i++)
1661 {
1662 x = sk_X509_value(certs, i);
1663 if (i == client_cert_idx)
1664 *pcert = x;
1665 else
1666 {
1667 key = X509_get_ex_data(x, cert_capi_idx);
1668 capi_free_key(key);
1669 X509_free(x);
1670 }
1671 }
1672
1673 sk_X509_free(certs);
1674
1675 if (!*pcert)
1676 return 0;
1677
1678 /* Setup key for selected certificate */
1679
1680 key = X509_get_ex_data(*pcert, cert_capi_idx);
1681 *pkey = capi_get_pkey(e, key);
1682 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1683
1684 return 1;
1685
1686 }
1687
1688
1689 /* Simple client cert selection function: always select first */
1690
1691 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1692 {
1693 return 0;
1694 }
1695
1696 #ifdef OPENSSL_CAPIENG_DIALOG
1697
1698 /* More complex cert selection function, using standard function
1699 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1700 */
1701
1702 /* Definitions which are in cryptuiapi.h but this is not present in older
1703 * versions of headers.
1704 */
1705
1706 #ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1707 #define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1708 #define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1709 #endif
1710
1711 #define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1712 #define dlg_prompt L"Select a certificate to use for authentication"
1713 #define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1714 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1715
1716 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1717 {
1718 X509 *x;
1719 HCERTSTORE dstore;
1720 PCCERT_CONTEXT cert;
1721 CAPI_CTX *ctx;
1722 CAPI_KEY *key;
1723 HWND hwnd;
1724 int i, idx = -1;
1725 if (sk_X509_num(certs) == 1)
1726 return 0;
1727 ctx = ENGINE_get_ex_data(e, capi_idx);
1728 /* Create an in memory store of certificates */
1729 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1730 CERT_STORE_CREATE_NEW_FLAG, NULL);
1731 if (!dstore)
1732 {
1733 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1734 capi_addlasterror();
1735 goto err;
1736 }
1737 /* Add all certificates to store */
1738 for(i = 0; i < sk_X509_num(certs); i++)
1739 {
1740 x = sk_X509_value(certs, i);
1741 key = X509_get_ex_data(x, cert_capi_idx);
1742
1743 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1744 CERT_STORE_ADD_NEW, NULL))
1745 {
1746 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1747 capi_addlasterror();
1748 goto err;
1749 }
1750
1751 }
1752 hwnd = GetForegroundWindow();
1753 if (!hwnd)
1754 hwnd = GetActiveWindow();
1755 if (!hwnd && ctx->getconswindow)
1756 hwnd = ctx->getconswindow();
1757 /* Call dialog to select one */
1758 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1759 dlg_columns, 0, NULL);
1760
1761 /* Find matching cert from list */
1762 if (cert)
1763 {
1764 for(i = 0; i < sk_X509_num(certs); i++)
1765 {
1766 x = sk_X509_value(certs, i);
1767 key = X509_get_ex_data(x, cert_capi_idx);
1768 if (CertCompareCertificate(
1769 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1770 cert->pCertInfo,
1771 key->pcert->pCertInfo))
1772 {
1773 idx = i;
1774 break;
1775 }
1776 }
1777 }
1778
1779 err:
1780 if (dstore)
1781 CertCloseStore(dstore, 0);
1782 return idx;
1783
1784 }
1785 #endif
1786
1787 #endif
1788 #else /* !WIN32 */
1789 #include <openssl/engine.h>
1790 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
1791 OPENSSL_EXPORT
1792 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
1793 IMPLEMENT_DYNAMIC_CHECK_FN()
1794 #endif
1795 #endif
NetBSD on the FriendlyARM MINI2440