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libsodium update to 0.7.0
[tomato.git] / release / src-rt-6.x.4708 / router / openssl / engines / e_capi.c
blobc1085b56cdabc46d0b46eef62481cab50500be46
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 /*
75 * This module uses several "new" interfaces, among which is
76 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
77 * one of possible values you can pass to function in question. By
78 * checking if it's defined we can see if wincrypt.h and accompanying
79 * crypt32.lib are in shape. The native MingW32 headers up to and
80 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
81 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
82 * so we check for these too and avoid compiling.
83 * Yes, it's rather "weak" test and if compilation fails,
84 * then re-configure with -DOPENSSL_NO_CAPIENG.
85 */
86 #if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
87 defined(CERT_STORE_PROV_SYSTEM_A) && \
88 defined(CERT_STORE_READONLY_FLAG)
89 # define __COMPILE_CAPIENG
90 #endif /* CERT_KEY_PROV_INFO_PROP_ID */
91 #endif /* OPENSSL_NO_CAPIENG */
92 #endif /* OPENSSL_SYS_WIN32 */
93
94 #ifdef __COMPILE_CAPIENG
95
96 #undef X509_EXTENSIONS
97 #undef X509_CERT_PAIR
98
99 /* Definitions which may be missing from earlier version of headers */
100 #ifndef CERT_STORE_OPEN_EXISTING_FLAG
101 #define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
102 #endif
103
104 #ifndef CERT_STORE_CREATE_NEW_FLAG
105 #define CERT_STORE_CREATE_NEW_FLAG 0x00002000
106 #endif
107
108 #ifndef CERT_SYSTEM_STORE_CURRENT_USER
109 #define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
110 #endif
111
112 #include <openssl/engine.h>
113 #include <openssl/pem.h>
114 #include <openssl/x509v3.h>
115
116 #include "e_capi_err.h"
117 #include "e_capi_err.c"
118
119
120 static const char *engine_capi_id = "capi";
121 static const char *engine_capi_name = "CryptoAPI ENGINE";
122
123 typedef struct CAPI_CTX_st CAPI_CTX;
124 typedef struct CAPI_KEY_st CAPI_KEY;
125
126 static void capi_addlasterror(void);
127 static void capi_adderror(DWORD err);
128
129 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
130
131 static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
132 static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
133 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
134 void capi_free_key(CAPI_KEY *key);
135
136 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
137
138 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
139
140 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
141 UI_METHOD *ui_method, void *callback_data);
142 static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
143 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
144 static int capi_rsa_priv_enc(int flen, const unsigned char *from,
145 unsigned char *to, RSA *rsa, int padding);
146 static int capi_rsa_priv_dec(int flen, const unsigned char *from,
147 unsigned char *to, RSA *rsa, int padding);
148 static int capi_rsa_free(RSA *rsa);
149
150 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
151 DSA *dsa);
152 static int capi_dsa_free(DSA *dsa);
153
154 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
155 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
156 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
157
158 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
159 #ifdef OPENSSL_CAPIENG_DIALOG
160 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
161 #endif
162
163 typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
164 LPCWSTR, DWORD, DWORD,
165 void *);
166 typedef HWND (WINAPI *GETCONSWIN)(void);
167
168 /* This structure contains CAPI ENGINE specific data:
169 * it contains various global options and affects how
170 * other functions behave.
171 */
172
173 #define CAPI_DBG_TRACE 2
174 #define CAPI_DBG_ERROR 1
175
176 struct CAPI_CTX_st {
177 int debug_level;
178 char *debug_file;
179 /* Parameters to use for container lookup */
180 DWORD keytype;
181 LPSTR cspname;
182 DWORD csptype;
183 /* Certificate store name to use */
184 LPSTR storename;
185 LPSTR ssl_client_store;
186 /* System store flags */
187 DWORD store_flags;
188
189 /* Lookup string meanings in load_private_key */
190 /* Substring of subject: uses "storename" */
191 #define CAPI_LU_SUBSTR 1
192 /* Friendly name: uses storename */
193 #define CAPI_LU_FNAME 2
194 /* Container name: uses cspname, keytype */
195 #define CAPI_LU_CONTNAME 3
196 int lookup_method;
197 /* Info to dump with dumpcerts option */
198 /* Issuer and serial name strings */
199 #define CAPI_DMP_SUMMARY 0x1
200 /* Friendly name */
201 #define CAPI_DMP_FNAME 0x2
202 /* Full X509_print dump */
203 #define CAPI_DMP_FULL 0x4
204 /* Dump PEM format certificate */
205 #define CAPI_DMP_PEM 0x8
206 /* Dump pseudo key (if possible) */
207 #define CAPI_DMP_PSKEY 0x10
208 /* Dump key info (if possible) */
209 #define CAPI_DMP_PKEYINFO 0x20
210
211 DWORD dump_flags;
212 int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
213
214 CERTDLG certselectdlg;
215 GETCONSWIN getconswindow;
216 };
217
218
219 static CAPI_CTX *capi_ctx_new();
220 static void capi_ctx_free(CAPI_CTX *ctx);
221 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
222 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
223
224 #define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
225 #define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
226 #define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
227 #define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
228 #define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
229 #define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
230 #define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
231 #define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
232 #define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
233 #define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
234 #define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
235 #define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
236 #define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
237 #define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
238
239 static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
240 {CAPI_CMD_LIST_CERTS,
241 "list_certs",
242 "List all certificates in store",
243 ENGINE_CMD_FLAG_NO_INPUT},
244 {CAPI_CMD_LOOKUP_CERT,
245 "lookup_cert",
246 "Lookup and output certificates",
247 ENGINE_CMD_FLAG_STRING},
248 {CAPI_CMD_DEBUG_LEVEL,
249 "debug_level",
250 "debug level (1=errors, 2=trace)",
251 ENGINE_CMD_FLAG_NUMERIC},
252 {CAPI_CMD_DEBUG_FILE,
253 "debug_file",
254 "debugging filename)",
255 ENGINE_CMD_FLAG_STRING},
256 {CAPI_CMD_KEYTYPE,
257 "key_type",
258 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
259 ENGINE_CMD_FLAG_NUMERIC},
260 {CAPI_CMD_LIST_CSPS,
261 "list_csps",
262 "List all CSPs",
263 ENGINE_CMD_FLAG_NO_INPUT},
264 {CAPI_CMD_SET_CSP_IDX,
265 "csp_idx",
266 "Set CSP by index",
267 ENGINE_CMD_FLAG_NUMERIC},
268 {CAPI_CMD_SET_CSP_NAME,
269 "csp_name",
270 "Set CSP name, (default CSP used if not specified)",
271 ENGINE_CMD_FLAG_STRING},
272 {CAPI_CMD_SET_CSP_TYPE,
273 "csp_type",
274 "Set CSP type, (default RSA_PROV_FULL)",
275 ENGINE_CMD_FLAG_NUMERIC},
276 {CAPI_CMD_LIST_CONTAINERS,
277 "list_containers",
278 "list container names",
279 ENGINE_CMD_FLAG_NO_INPUT},
280 {CAPI_CMD_LIST_OPTIONS,
281 "list_options",
282 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
283 "32=private key info)",
284 ENGINE_CMD_FLAG_NUMERIC},
285 {CAPI_CMD_LOOKUP_METHOD,
286 "lookup_method",
287 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
288 ENGINE_CMD_FLAG_NUMERIC},
289 {CAPI_CMD_STORE_NAME,
290 "store_name",
291 "certificate store name, default \"MY\"",
292 ENGINE_CMD_FLAG_STRING},
293 {CAPI_CMD_STORE_FLAGS,
294 "store_flags",
295 "Certificate store flags: 1 = system store",
296 ENGINE_CMD_FLAG_NUMERIC},
297
298 {0, NULL, NULL, 0}
299 };
300
301 static int capi_idx = -1;
302 static int rsa_capi_idx = -1;
303 static int dsa_capi_idx = -1;
304 static int cert_capi_idx = -1;
305
306 static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
307 {
308 int ret = 1;
309 CAPI_CTX *ctx;
310 BIO *out;
311 if (capi_idx == -1)
312 {
313 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
314 return 0;
315 }
316 ctx = ENGINE_get_ex_data(e, capi_idx);
317 out = BIO_new_fp(stdout, BIO_NOCLOSE);
318 switch (cmd)
319 {
320 case CAPI_CMD_LIST_CSPS:
321 ret = capi_list_providers(ctx, out);
322 break;
323
324 case CAPI_CMD_LIST_CERTS:
325 ret = capi_list_certs(ctx, out, NULL);
326 break;
327
328 case CAPI_CMD_LOOKUP_CERT:
329 ret = capi_list_certs(ctx, out, p);
330 break;
331
332 case CAPI_CMD_LIST_CONTAINERS:
333 ret = capi_list_containers(ctx, out);
334 break;
335
336 case CAPI_CMD_STORE_NAME:
337 if (ctx->storename)
338 OPENSSL_free(ctx->storename);
339 ctx->storename = BUF_strdup(p);
340 CAPI_trace(ctx, "Setting store name to %s\n", p);
341 break;
342
343 case CAPI_CMD_STORE_FLAGS:
344 if (i & 1)
345 {
346 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
347 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
348 }
349 else
350 {
351 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
352 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
353 }
354 CAPI_trace(ctx, "Setting flags to %d\n", i);
355 break;
356
357 case CAPI_CMD_DEBUG_LEVEL:
358 ctx->debug_level = (int)i;
359 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
360 break;
361
362 case CAPI_CMD_DEBUG_FILE:
363 ctx->debug_file = BUF_strdup(p);
364 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
365 break;
366
367 case CAPI_CMD_KEYTYPE:
368 ctx->keytype = i;
369 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
370 break;
371
372 case CAPI_CMD_SET_CSP_IDX:
373 ret = capi_ctx_set_provname_idx(ctx, i);
374 break;
375
376 case CAPI_CMD_LIST_OPTIONS:
377 ctx->dump_flags = i;
378 break;
379
380 case CAPI_CMD_LOOKUP_METHOD:
381 if (i < 1 || i > 3)
382 {
383 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
384 return 0;
385 }
386 ctx->lookup_method = i;
387 break;
388
389 case CAPI_CMD_SET_CSP_NAME:
390 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
391 break;
392
393 case CAPI_CMD_SET_CSP_TYPE:
394 ctx->csptype = i;
395 break;
396
397 default:
398 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
399 ret = 0;
400 }
401
402 BIO_free(out);
403 return ret;
404
405 }
406
407 static RSA_METHOD capi_rsa_method =
408 {
409 "CryptoAPI RSA method",
410 0, /* pub_enc */
411 0, /* pub_dec */
412 capi_rsa_priv_enc, /* priv_enc */
413 capi_rsa_priv_dec, /* priv_dec */
414 0, /* rsa_mod_exp */
415 0, /* bn_mod_exp */
416 0, /* init */
417 capi_rsa_free, /* finish */
418 RSA_FLAG_SIGN_VER, /* flags */
419 NULL, /* app_data */
420 capi_rsa_sign, /* rsa_sign */
421 0 /* rsa_verify */
422 };
423
424 static DSA_METHOD capi_dsa_method =
425 {
426 "CryptoAPI DSA method",
427 capi_dsa_do_sign, /* dsa_do_sign */
428 0, /* dsa_sign_setup */
429 0, /* dsa_do_verify */
430 0, /* dsa_mod_exp */
431 0, /* bn_mod_exp */
432 0, /* init */
433 capi_dsa_free, /* finish */
434 0, /* flags */
435 NULL, /* app_data */
436 0, /* dsa_paramgen */
437 0 /* dsa_keygen */
438 };
439
440 static int capi_init(ENGINE *e)
441 {
442 CAPI_CTX *ctx;
443 const RSA_METHOD *ossl_rsa_meth;
444 const DSA_METHOD *ossl_dsa_meth;
445
446 if (capi_idx < 0)
447 {
448 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
449 if (capi_idx < 0)
450 goto memerr;
451
452 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
453
454 /* Setup RSA_METHOD */
455 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
456 ossl_rsa_meth = RSA_PKCS1_SSLeay();
457 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
458 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
459 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
460 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
461
462 /* Setup DSA Method */
463 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
464 ossl_dsa_meth = DSA_OpenSSL();
465 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
466 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
467 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
468 }
469
470 ctx = capi_ctx_new();
471 if (!ctx)
472 goto memerr;
473
474 ENGINE_set_ex_data(e, capi_idx, ctx);
475
476 #ifdef OPENSSL_CAPIENG_DIALOG
477 {
478 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
479 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
480 if (cryptui)
481 ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore");
482 if (kernel)
483 ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow");
484 if (cryptui && !OPENSSL_isservice())
485 ctx->client_cert_select = cert_select_dialog;
486 }
487 #endif
488
489
490 return 1;
491
492 memerr:
493 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
494 return 0;
495
496 return 1;
497 }
498
499 static int capi_destroy(ENGINE *e)
500 {
501 ERR_unload_CAPI_strings();
502 return 1;
503 }
504
505 static int capi_finish(ENGINE *e)
506 {
507 CAPI_CTX *ctx;
508 ctx = ENGINE_get_ex_data(e, capi_idx);
509 capi_ctx_free(ctx);
510 ENGINE_set_ex_data(e, capi_idx, NULL);
511 return 1;
512 }
513
514
515 /* CryptoAPI key application data. This contains
516 * a handle to the private key container (for sign operations)
517 * and a handle to the key (for decrypt operations).
518 */
519
520 struct CAPI_KEY_st
521 {
522 /* Associated certificate context (if any) */
523 PCCERT_CONTEXT pcert;
524 HCRYPTPROV hprov;
525 HCRYPTKEY key;
526 DWORD keyspec;
527 };
528
529 static int bind_capi(ENGINE *e)
530 {
531 if (!ENGINE_set_id(e, engine_capi_id)
532 || !ENGINE_set_name(e, engine_capi_name)
533 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
534 || !ENGINE_set_init_function(e, capi_init)
535 || !ENGINE_set_finish_function(e, capi_finish)
536 || !ENGINE_set_destroy_function(e, capi_destroy)
537 || !ENGINE_set_RSA(e, &capi_rsa_method)
538 || !ENGINE_set_DSA(e, &capi_dsa_method)
539 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
540 || !ENGINE_set_load_ssl_client_cert_function(e,
541 capi_load_ssl_client_cert)
542 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
543 || !ENGINE_set_ctrl_function(e, capi_ctrl))
544 return 0;
545 ERR_load_CAPI_strings();
546
547 return 1;
548
549 }
550
551 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
552 static int bind_helper(ENGINE *e, const char *id)
553 {
554 if(id && (strcmp(id, engine_capi_id) != 0))
555 return 0;
556 if(!bind_capi(e))
557 return 0;
558 return 1;
559 }
560 IMPLEMENT_DYNAMIC_CHECK_FN()
561 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
562 #else
563 static ENGINE *engine_capi(void)
564 {
565 ENGINE *ret = ENGINE_new();
566 if(!ret)
567 return NULL;
568 if(!bind_capi(ret))
569 {
570 ENGINE_free(ret);
571 return NULL;
572 }
573 return ret;
574 }
575
576 void ENGINE_load_capi(void)
577 {
578 /* Copied from eng_[openssl|dyn].c */
579 ENGINE *toadd = engine_capi();
580 if(!toadd) return;
581 ENGINE_add(toadd);
582 ENGINE_free(toadd);
583 ERR_clear_error();
584 }
585 #endif
586
587
588 static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
589 {
590 int i;
591 /* Reverse buffer in place: since this is a keyblob structure
592 * that will be freed up after conversion anyway it doesn't
593 * matter if we change it.
594 */
595 for(i = 0; i < binlen / 2; i++)
596 {
597 unsigned char c;
598 c = bin[i];
599 bin[i] = bin[binlen - i - 1];
600 bin[binlen - i - 1] = c;
601 }
602
603 if (!BN_bin2bn(bin, binlen, bn))
604 return 0;
605 return 1;
606 }
607
608 /* Given a CAPI_KEY get an EVP_PKEY structure */
609
610 static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
611 {
612 unsigned char *pubkey = NULL;
613 DWORD len;
614 BLOBHEADER *bh;
615 RSA *rkey = NULL;
616 DSA *dkey = NULL;
617 EVP_PKEY *ret = NULL;
618 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
619 {
620 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
621 capi_addlasterror();
622 return NULL;
623 }
624
625 pubkey = OPENSSL_malloc(len);
626
627 if (!pubkey)
628 goto memerr;
629
630 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
631 {
632 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
633 capi_addlasterror();
634 goto err;
635 }
636
637 bh = (BLOBHEADER *)pubkey;
638 if (bh->bType != PUBLICKEYBLOB)
639 {
640 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
641 goto err;
642 }
643 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
644 {
645 RSAPUBKEY *rp;
646 DWORD rsa_modlen;
647 unsigned char *rsa_modulus;
648 rp = (RSAPUBKEY *)(bh + 1);
649 if (rp->magic != 0x31415352)
650 {
651 char magstr[10];
652 BIO_snprintf(magstr, 10, "%lx", rp->magic);
653 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
654 ERR_add_error_data(2, "magic=0x", magstr);
655 goto err;
656 }
657 rsa_modulus = (unsigned char *)(rp + 1);
658 rkey = RSA_new_method(eng);
659 if (!rkey)
660 goto memerr;
661
662 rkey->e = BN_new();
663 rkey->n = BN_new();
664
665 if (!rkey->e || !rkey->n)
666 goto memerr;
667
668 if (!BN_set_word(rkey->e, rp->pubexp))
669 goto memerr;
670
671 rsa_modlen = rp->bitlen / 8;
672 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
673 goto memerr;
674
675 RSA_set_ex_data(rkey, rsa_capi_idx, key);
676
677 if (!(ret = EVP_PKEY_new()))
678 goto memerr;
679
680 EVP_PKEY_assign_RSA(ret, rkey);
681 rkey = NULL;
682
683 }
684 else if (bh->aiKeyAlg == CALG_DSS_SIGN)
685 {
686 DSSPUBKEY *dp;
687 DWORD dsa_plen;
688 unsigned char *btmp;
689 dp = (DSSPUBKEY *)(bh + 1);
690 if (dp->magic != 0x31535344)
691 {
692 char magstr[10];
693 BIO_snprintf(magstr, 10, "%lx", dp->magic);
694 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
695 ERR_add_error_data(2, "magic=0x", magstr);
696 goto err;
697 }
698 dsa_plen = dp->bitlen / 8;
699 btmp = (unsigned char *)(dp + 1);
700 dkey = DSA_new_method(eng);
701 if (!dkey)
702 goto memerr;
703 dkey->p = BN_new();
704 dkey->q = BN_new();
705 dkey->g = BN_new();
706 dkey->pub_key = BN_new();
707 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
708 goto memerr;
709 if (!lend_tobn(dkey->p, btmp, dsa_plen))
710 goto memerr;
711 btmp += dsa_plen;
712 if (!lend_tobn(dkey->q, btmp, 20))
713 goto memerr;
714 btmp += 20;
715 if (!lend_tobn(dkey->g, btmp, dsa_plen))
716 goto memerr;
717 btmp += dsa_plen;
718 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
719 goto memerr;
720 btmp += dsa_plen;
721
722 DSA_set_ex_data(dkey, dsa_capi_idx, key);
723
724 if (!(ret = EVP_PKEY_new()))
725 goto memerr;
726
727 EVP_PKEY_assign_DSA(ret, dkey);
728 dkey = NULL;
729 }
730 else
731 {
732 char algstr[10];
733 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
734 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
735 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
736 goto err;
737 }
738
739
740 err:
741 if (pubkey)
742 OPENSSL_free(pubkey);
743 if (!ret)
744 {
745 if (rkey)
746 RSA_free(rkey);
747 if (dkey)
748 DSA_free(dkey);
749 }
750
751 return ret;
752
753 memerr:
754 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
755 goto err;
756
757 }
758
759 static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
760 UI_METHOD *ui_method, void *callback_data)
761 {
762 CAPI_CTX *ctx;
763 CAPI_KEY *key;
764 EVP_PKEY *ret;
765 ctx = ENGINE_get_ex_data(eng, capi_idx);
766
767 if (!ctx)
768 {
769 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
770 return NULL;
771 }
772
773 key = capi_find_key(ctx, key_id);
774
775 if (!key)
776 return NULL;
777
778 ret = capi_get_pkey(eng, key);
779
780 if (!ret)
781 capi_free_key(key);
782 return ret;
783
784 }
785
786 /* CryptoAPI RSA operations */
787
788 int capi_rsa_priv_enc(int flen, const unsigned char *from,
789 unsigned char *to, RSA *rsa, int padding)
790 {
791 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
792 return -1;
793 }
794
795 int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
796 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
797 {
798 ALG_ID alg;
799 HCRYPTHASH hash;
800 DWORD slen;
801 unsigned int i;
802 int ret = -1;
803 CAPI_KEY *capi_key;
804 CAPI_CTX *ctx;
805
806 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
807
808 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
809
810 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
811 if (!capi_key)
812 {
813 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
814 return -1;
815 }
816 /* Convert the signature type to a CryptoAPI algorithm ID */
817 switch(dtype)
818 {
819 case NID_sha1:
820 alg = CALG_SHA1;
821 break;
822
823 case NID_md5:
824 alg = CALG_MD5;
825 break;
826
827 case NID_md5_sha1:
828 alg = CALG_SSL3_SHAMD5;
829 break;
830 default:
831 {
832 char algstr[10];
833 BIO_snprintf(algstr, 10, "%lx", dtype);
834 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
835 ERR_add_error_data(2, "NID=0x", algstr);
836 return -1;
837 }
838 }
839
840
841
842 /* Create the hash object */
843 if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
844 {
845 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
846 capi_addlasterror();
847 return -1;
848 }
849 /* Set the hash value to the value passed */
850
851 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
852 {
853 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
854 capi_addlasterror();
855 goto err;
856 }
857
858
859 /* Finally sign it */
860 slen = RSA_size(rsa);
861 if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
862 {
863 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
864 capi_addlasterror();
865 goto err;
866 }
867 else
868 {
869 ret = 1;
870 /* Inplace byte reversal of signature */
871 for(i = 0; i < slen / 2; i++)
872 {
873 unsigned char c;
874 c = sigret[i];
875 sigret[i] = sigret[slen - i - 1];
876 sigret[slen - i - 1] = c;
877 }
878 *siglen = slen;
879 }
880
881 /* Now cleanup */
882
883 err:
884 CryptDestroyHash(hash);
885
886 return ret;
887 }
888
889 int capi_rsa_priv_dec(int flen, const unsigned char *from,
890 unsigned char *to, RSA *rsa, int padding)
891 {
892 int i;
893 unsigned char *tmpbuf;
894 CAPI_KEY *capi_key;
895 CAPI_CTX *ctx;
896 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
897
898 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
899
900
901 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
902 if (!capi_key)
903 {
904 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
905 return -1;
906 }
907
908 if(padding != RSA_PKCS1_PADDING)
909 {
910 char errstr[10];
911 BIO_snprintf(errstr, 10, "%d", padding);
912 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
913 ERR_add_error_data(2, "padding=", errstr);
914 return -1;
915 }
916
917 /* Create temp reverse order version of input */
918 if(!(tmpbuf = OPENSSL_malloc(flen)) )
919 {
920 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
921 return -1;
922 }
923 for(i = 0; i < flen; i++)
924 tmpbuf[flen - i - 1] = from[i];
925
926 /* Finally decrypt it */
927 if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
928 {
929 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
930 capi_addlasterror();
931 OPENSSL_free(tmpbuf);
932 return -1;
933 }
934 else memcpy(to, tmpbuf, flen);
935
936 OPENSSL_free(tmpbuf);
937
938 return flen;
939 }
940
941 static int capi_rsa_free(RSA *rsa)
942 {
943 CAPI_KEY *capi_key;
944 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
945 capi_free_key(capi_key);
946 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
947 return 1;
948 }
949
950 /* CryptoAPI DSA operations */
951
952 static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
953 DSA *dsa)
954 {
955 HCRYPTHASH hash;
956 DWORD slen;
957 DSA_SIG *ret = NULL;
958 CAPI_KEY *capi_key;
959 CAPI_CTX *ctx;
960 unsigned char csigbuf[40];
961
962 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
963
964 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
965
966 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
967
968 if (!capi_key)
969 {
970 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
971 return NULL;
972 }
973
974 if (dlen != 20)
975 {
976 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
977 return NULL;
978 }
979
980 /* Create the hash object */
981 if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
982 {
983 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
984 capi_addlasterror();
985 return NULL;
986 }
987
988 /* Set the hash value to the value passed */
989 if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
990 {
991 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
992 capi_addlasterror();
993 goto err;
994 }
995
996
997 /* Finally sign it */
998 slen = sizeof(csigbuf);
999 if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
1000 {
1001 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1002 capi_addlasterror();
1003 goto err;
1004 }
1005 else
1006 {
1007 ret = DSA_SIG_new();
1008 if (!ret)
1009 goto err;
1010 ret->r = BN_new();
1011 ret->s = BN_new();
1012 if (!ret->r || !ret->s)
1013 goto err;
1014 if (!lend_tobn(ret->r, csigbuf, 20)
1015 || !lend_tobn(ret->s, csigbuf + 20, 20))
1016 {
1017 DSA_SIG_free(ret);
1018 ret = NULL;
1019 goto err;
1020 }
1021 }
1022
1023 /* Now cleanup */
1024
1025 err:
1026 OPENSSL_cleanse(csigbuf, 40);
1027 CryptDestroyHash(hash);
1028 return ret;
1029 }
1030
1031 static int capi_dsa_free(DSA *dsa)
1032 {
1033 CAPI_KEY *capi_key;
1034 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1035 capi_free_key(capi_key);
1036 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1037 return 1;
1038 }
1039
1040 static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
1041 {
1042 BIO *out;
1043
1044 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1045 return;
1046 out = BIO_new_file(ctx->debug_file, "a+");
1047 BIO_vprintf(out, format, argptr);
1048 BIO_free(out);
1049 }
1050
1051 static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
1052 {
1053 va_list args;
1054 va_start(args, format);
1055 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1056 va_end(args);
1057 }
1058
1059 static void capi_addlasterror(void)
1060 {
1061 capi_adderror(GetLastError());
1062 }
1063
1064 static void capi_adderror(DWORD err)
1065 {
1066 char errstr[10];
1067 BIO_snprintf(errstr, 10, "%lX", err);
1068 ERR_add_error_data(2, "Error code= 0x", errstr);
1069 }
1070
1071 static char *wide_to_asc(LPWSTR wstr)
1072 {
1073 char *str;
1074 int len_0,sz;
1075
1076 if (!wstr)
1077 return NULL;
1078 len_0 = (int)wcslen(wstr)+1; /* WideCharToMultiByte expects int */
1079 sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL);
1080 if (!sz)
1081 {
1082 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1083 return NULL;
1084 }
1085 str = OPENSSL_malloc(sz);
1086 if (!str)
1087 {
1088 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1089 return NULL;
1090 }
1091 if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL))
1092 {
1093 OPENSSL_free(str);
1094 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1095 return NULL;
1096 }
1097 return str;
1098 }
1099
1100 static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
1101 {
1102 LPSTR name;
1103 DWORD len, err;
1104 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1105 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len))
1106 {
1107 err = GetLastError();
1108 if (err == ERROR_NO_MORE_ITEMS)
1109 return 2;
1110 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1111 capi_adderror(err);
1112 return 0;
1113 }
1114 name = OPENSSL_malloc(len);
1115 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len))
1116 {
1117 err = GetLastError();
1118 if (err == ERROR_NO_MORE_ITEMS)
1119 return 2;
1120 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1121 capi_adderror(err);
1122 return 0;
1123 }
1124 *pname = name;
1125 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
1126
1127 return 1;
1128 }
1129
1130 static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
1131 {
1132 DWORD idx, ptype;
1133 int ret;
1134 LPSTR provname = NULL;
1135 CAPI_trace(ctx, "capi_list_providers\n");
1136 BIO_printf(out, "Available CSPs:\n");
1137 for(idx = 0; ; idx++)
1138 {
1139 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1140 if (ret == 2)
1141 break;
1142 if (ret == 0)
1143 break;
1144 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1145 OPENSSL_free(provname);
1146 }
1147 return 1;
1148 }
1149
1150 static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
1151 {
1152 int ret = 1;
1153 HCRYPTPROV hprov;
1154 DWORD err, idx, flags, buflen = 0, clen;
1155 LPSTR cname;
1156 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
1157 if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
1158 {
1159 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1160 capi_addlasterror();
1161 return 0;
1162 }
1163 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
1164 {
1165 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1166 capi_addlasterror();
1167 CryptReleaseContext(hprov, 0);
1168 return 0;
1169 }
1170 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1171 if (buflen == 0)
1172 buflen = 1024;
1173 cname = OPENSSL_malloc(buflen);
1174 if (!cname)
1175 {
1176 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1177 goto err;
1178 }
1179
1180 for (idx = 0;;idx++)
1181 {
1182 clen = buflen;
1183 cname[0] = 0;
1184
1185 if (idx == 0)
1186 flags = CRYPT_FIRST;
1187 else
1188 flags = 0;
1189 if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
1190 {
1191 err = GetLastError();
1192 if (err == ERROR_NO_MORE_ITEMS)
1193 goto done;
1194 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1195 capi_adderror(err);
1196 goto err;
1197 }
1198 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
1199 if (!cname[0] && (clen == buflen))
1200 {
1201 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1202 goto done;
1203 }
1204 BIO_printf(out, "%d. %s\n", idx, cname);
1205 }
1206 err:
1207
1208 ret = 0;
1209
1210 done:
1211 if (cname)
1212 OPENSSL_free(cname);
1213 CryptReleaseContext(hprov, 0);
1214
1215 return ret;
1216 }
1217
1218 CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1219 {
1220 DWORD len;
1221 CRYPT_KEY_PROV_INFO *pinfo;
1222
1223 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1224 return NULL;
1225 pinfo = OPENSSL_malloc(len);
1226 if (!pinfo)
1227 {
1228 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1229 return NULL;
1230 }
1231 if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
1232 {
1233 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1234 capi_addlasterror();
1235 OPENSSL_free(pinfo);
1236 return NULL;
1237 }
1238 return pinfo;
1239 }
1240
1241 static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
1242 {
1243 char *provname = NULL, *contname = NULL;
1244 if (!pinfo)
1245 {
1246 BIO_printf(out, " No Private Key\n");
1247 return;
1248 }
1249 provname = wide_to_asc(pinfo->pwszProvName);
1250 contname = wide_to_asc(pinfo->pwszContainerName);
1251 if (!provname || !contname)
1252 goto err;
1253
1254 BIO_printf(out, " Private Key Info:\n");
1255 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname, pinfo->dwProvType);
1256 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
1257 err:
1258 if (provname)
1259 OPENSSL_free(provname);
1260 if (contname)
1261 OPENSSL_free(contname);
1262 }
1263
1264 char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1265 {
1266 LPWSTR wfname;
1267 DWORD dlen;
1268
1269 CAPI_trace(ctx, "capi_cert_get_fname\n");
1270 if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1271 return NULL;
1272 wfname = OPENSSL_malloc(dlen);
1273 if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
1274 {
1275 char *fname = wide_to_asc(wfname);
1276 OPENSSL_free(wfname);
1277 return fname;
1278 }
1279 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1280 capi_addlasterror();
1281
1282 OPENSSL_free(wfname);
1283 return NULL;
1284 }
1285
1286
1287 void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
1288 {
1289 X509 *x;
1290 unsigned char *p;
1291 unsigned long flags = ctx->dump_flags;
1292 if (flags & CAPI_DMP_FNAME)
1293 {
1294 char *fname;
1295 fname = capi_cert_get_fname(ctx, cert);
1296 if (fname)
1297 {
1298 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1299 OPENSSL_free(fname);
1300 }
1301 else
1302 BIO_printf(out, " <No Friendly Name>\n");
1303 }
1304
1305 p = cert->pbCertEncoded;
1306 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1307 if (!x)
1308 BIO_printf(out, " <Can't parse certificate>\n");
1309 if (flags & CAPI_DMP_SUMMARY)
1310 {
1311 BIO_printf(out, " Subject: ");
1312 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1313 BIO_printf(out, "\n Issuer: ");
1314 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1315 BIO_printf(out, "\n");
1316 }
1317 if (flags & CAPI_DMP_FULL)
1318 X509_print_ex(out, x, XN_FLAG_ONELINE,0);
1319
1320 if (flags & CAPI_DMP_PKEYINFO)
1321 {
1322 CRYPT_KEY_PROV_INFO *pinfo;
1323 pinfo = capi_get_prov_info(ctx, cert);
1324 capi_dump_prov_info(ctx, out, pinfo);
1325 if (pinfo)
1326 OPENSSL_free(pinfo);
1327 }
1328
1329 if (flags & CAPI_DMP_PEM)
1330 PEM_write_bio_X509(out, x);
1331 X509_free(x);
1332 }
1333
1334 HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
1335 {
1336 HCERTSTORE hstore;
1337
1338 if (!storename)
1339 storename = ctx->storename;
1340 if (!storename)
1341 storename = "MY";
1342 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1343
1344 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1345 ctx->store_flags, storename);
1346 if (!hstore)
1347 {
1348 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1349 capi_addlasterror();
1350 }
1351 return hstore;
1352 }
1353
1354 int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
1355 {
1356 char *storename;
1357 int idx;
1358 int ret = 1;
1359 HCERTSTORE hstore;
1360 PCCERT_CONTEXT cert = NULL;
1361
1362 storename = ctx->storename;
1363 if (!storename)
1364 storename = "MY";
1365 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1366
1367 hstore = capi_open_store(ctx, storename);
1368 if (!hstore)
1369 return 0;
1370 if (id)
1371 {
1372 cert = capi_find_cert(ctx, id, hstore);
1373 if (!cert)
1374 {
1375 ret = 0;
1376 goto err;
1377 }
1378 capi_dump_cert(ctx, out, cert);
1379 CertFreeCertificateContext(cert);
1380 }
1381 else
1382 {
1383 for(idx = 0;;idx++)
1384 {
1385 LPWSTR fname = NULL;
1386 cert = CertEnumCertificatesInStore(hstore, cert);
1387 if (!cert)
1388 break;
1389 BIO_printf(out, "Certificate %d\n", idx);
1390 capi_dump_cert(ctx, out, cert);
1391 }
1392 }
1393 err:
1394 CertCloseStore(hstore, 0);
1395 return ret;
1396 }
1397
1398 static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
1399 {
1400 PCCERT_CONTEXT cert = NULL;
1401 char *fname = NULL;
1402 int match;
1403 switch(ctx->lookup_method)
1404 {
1405 case CAPI_LU_SUBSTR:
1406 return CertFindCertificateInStore(hstore,
1407 X509_ASN_ENCODING, 0,
1408 CERT_FIND_SUBJECT_STR_A, id, NULL);
1409 case CAPI_LU_FNAME:
1410 for(;;)
1411 {
1412 cert = CertEnumCertificatesInStore(hstore, cert);
1413 if (!cert)
1414 return NULL;
1415 fname = capi_cert_get_fname(ctx, cert);
1416 if (fname)
1417 {
1418 if (strcmp(fname, id))
1419 match = 0;
1420 else
1421 match = 1;
1422 OPENSSL_free(fname);
1423 if (match)
1424 return cert;
1425 }
1426 }
1427 default:
1428 return NULL;
1429 }
1430 }
1431
1432 static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
1433 {
1434 CAPI_KEY *key;
1435 DWORD dwFlags = 0;
1436 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1437 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1438 contname, provname, ptype);
1439 if(ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1440 dwFlags = CRYPT_MACHINE_KEYSET;
1441 if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, dwFlags))
1442 {
1443 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1444 capi_addlasterror();
1445 goto err;
1446 }
1447 if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
1448 {
1449 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1450 capi_addlasterror();
1451 CryptReleaseContext(key->hprov, 0);
1452 goto err;
1453 }
1454 key->keyspec = keyspec;
1455 key->pcert = NULL;
1456 return key;
1457
1458 err:
1459 OPENSSL_free(key);
1460 return NULL;
1461 }
1462
1463 static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
1464 {
1465 CAPI_KEY *key = NULL;
1466 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1467 char *provname = NULL, *contname = NULL;
1468 pinfo = capi_get_prov_info(ctx, cert);
1469 if (!pinfo)
1470 goto err;
1471 provname = wide_to_asc(pinfo->pwszProvName);
1472 contname = wide_to_asc(pinfo->pwszContainerName);
1473 if (!provname || !contname)
1474 goto err;
1475 key = capi_get_key(ctx, contname, provname,
1476 pinfo->dwProvType, pinfo->dwKeySpec);
1477
1478 err:
1479 if (pinfo)
1480 OPENSSL_free(pinfo);
1481 if (provname)
1482 OPENSSL_free(provname);
1483 if (contname)
1484 OPENSSL_free(contname);
1485 return key;
1486 }
1487
1488 CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
1489 {
1490 PCCERT_CONTEXT cert;
1491 HCERTSTORE hstore;
1492 CAPI_KEY *key = NULL;
1493 switch (ctx->lookup_method)
1494 {
1495 case CAPI_LU_SUBSTR:
1496 case CAPI_LU_FNAME:
1497 hstore = capi_open_store(ctx, NULL);
1498 if (!hstore)
1499 return NULL;
1500 cert = capi_find_cert(ctx, id, hstore);
1501 if (cert)
1502 {
1503 key = capi_get_cert_key(ctx, cert);
1504 CertFreeCertificateContext(cert);
1505 }
1506 CertCloseStore(hstore, 0);
1507 break;
1508
1509 case CAPI_LU_CONTNAME:
1510 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
1511 ctx->keytype);
1512 break;
1513 }
1514
1515 return key;
1516 }
1517
1518 void capi_free_key(CAPI_KEY *key)
1519 {
1520 if (!key)
1521 return;
1522 CryptDestroyKey(key->key);
1523 CryptReleaseContext(key->hprov, 0);
1524 if (key->pcert)
1525 CertFreeCertificateContext(key->pcert);
1526 OPENSSL_free(key);
1527 }
1528
1529
1530 /* Initialize a CAPI_CTX structure */
1531
1532 static CAPI_CTX *capi_ctx_new()
1533 {
1534 CAPI_CTX *ctx;
1535 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1536 if (!ctx)
1537 {
1538 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1539 return NULL;
1540 }
1541 ctx->cspname = NULL;
1542 ctx->csptype = PROV_RSA_FULL;
1543 ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
1544 ctx->keytype = AT_KEYEXCHANGE;
1545 ctx->storename = NULL;
1546 ctx->ssl_client_store = NULL;
1547 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1548 CERT_STORE_READONLY_FLAG |
1549 CERT_SYSTEM_STORE_CURRENT_USER;
1550 ctx->lookup_method = CAPI_LU_SUBSTR;
1551 ctx->debug_level = 0;
1552 ctx->debug_file = NULL;
1553 ctx->client_cert_select = cert_select_simple;
1554 return ctx;
1555 }
1556
1557 static void capi_ctx_free(CAPI_CTX *ctx)
1558 {
1559 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1560 if (!ctx)
1561 return;
1562 if (ctx->cspname)
1563 OPENSSL_free(ctx->cspname);
1564 if (ctx->debug_file)
1565 OPENSSL_free(ctx->debug_file);
1566 if (ctx->storename)
1567 OPENSSL_free(ctx->storename);
1568 if (ctx->ssl_client_store)
1569 OPENSSL_free(ctx->ssl_client_store);
1570 OPENSSL_free(ctx);
1571 }
1572
1573 static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
1574 {
1575 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1576 if (check)
1577 {
1578 HCRYPTPROV hprov;
1579 if (!CryptAcquireContextA(&hprov, NULL, pname, type,
1580 CRYPT_VERIFYCONTEXT))
1581 {
1582 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1583 capi_addlasterror();
1584 return 0;
1585 }
1586 CryptReleaseContext(hprov, 0);
1587 }
1588 if (ctx->cspname)
1589 OPENSSL_free(ctx->cspname);
1590 ctx->cspname = BUF_strdup(pname);
1591 ctx->csptype = type;
1592 return 1;
1593 }
1594
1595 static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
1596 {
1597 LPSTR pname;
1598 DWORD type;
1599 int res;
1600 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1601 return 0;
1602 res = capi_ctx_set_provname(ctx, pname, type, 0);
1603 OPENSSL_free(pname);
1604 return res;
1605 }
1606
1607 static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
1608 {
1609 int i;
1610 X509_NAME *nm;
1611 /* Special case: empty list: match anything */
1612 if (sk_X509_NAME_num(ca_dn) <= 0)
1613 return 1;
1614 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
1615 {
1616 nm = sk_X509_NAME_value(ca_dn, i);
1617 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1618 return 1;
1619 }
1620 return 0;
1621 }
1622
1623
1624
1625 static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
1626 STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
1627 STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
1628 {
1629 STACK_OF(X509) *certs = NULL;
1630 X509 *x;
1631 char *storename;
1632 const char *p;
1633 int i, client_cert_idx;
1634 HCERTSTORE hstore;
1635 PCCERT_CONTEXT cert = NULL, excert = NULL;
1636 CAPI_CTX *ctx;
1637 CAPI_KEY *key;
1638 ctx = ENGINE_get_ex_data(e, capi_idx);
1639
1640 *pcert = NULL;
1641 *pkey = NULL;
1642
1643 storename = ctx->ssl_client_store;
1644 if (!storename)
1645 storename = "MY";
1646
1647 hstore = capi_open_store(ctx, storename);
1648 if (!hstore)
1649 return 0;
1650 /* Enumerate all certificates collect any matches */
1651 for(i = 0;;i++)
1652 {
1653 cert = CertEnumCertificatesInStore(hstore, cert);
1654 if (!cert)
1655 break;
1656 p = cert->pbCertEncoded;
1657 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1658 if (!x)
1659 {
1660 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1661 continue;
1662 }
1663 if (cert_issuer_match(ca_dn, x)
1664 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0))
1665 {
1666 key = capi_get_cert_key(ctx, cert);
1667 if (!key)
1668 {
1669 X509_free(x);
1670 continue;
1671 }
1672 /* Match found: attach extra data to it so
1673 * we can retrieve the key later.
1674 */
1675 excert = CertDuplicateCertificateContext(cert);
1676 key->pcert = excert;
1677 X509_set_ex_data(x, cert_capi_idx, key);
1678
1679 if (!certs)
1680 certs = sk_X509_new_null();
1681
1682 sk_X509_push(certs, x);
1683 }
1684 else
1685 X509_free(x);
1686
1687 }
1688
1689 if (cert)
1690 CertFreeCertificateContext(cert);
1691 if (hstore)
1692 CertCloseStore(hstore, 0);
1693
1694 if (!certs)
1695 return 0;
1696
1697
1698 /* Select the appropriate certificate */
1699
1700 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1701
1702 /* Set the selected certificate and free the rest */
1703
1704 for(i = 0; i < sk_X509_num(certs); i++)
1705 {
1706 x = sk_X509_value(certs, i);
1707 if (i == client_cert_idx)
1708 *pcert = x;
1709 else
1710 {
1711 key = X509_get_ex_data(x, cert_capi_idx);
1712 capi_free_key(key);
1713 X509_free(x);
1714 }
1715 }
1716
1717 sk_X509_free(certs);
1718
1719 if (!*pcert)
1720 return 0;
1721
1722 /* Setup key for selected certificate */
1723
1724 key = X509_get_ex_data(*pcert, cert_capi_idx);
1725 *pkey = capi_get_pkey(e, key);
1726 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1727
1728 return 1;
1729
1730 }
1731
1732
1733 /* Simple client cert selection function: always select first */
1734
1735 static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1736 {
1737 return 0;
1738 }
1739
1740 #ifdef OPENSSL_CAPIENG_DIALOG
1741
1742 /* More complex cert selection function, using standard function
1743 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1744 */
1745
1746 /* Definitions which are in cryptuiapi.h but this is not present in older
1747 * versions of headers.
1748 */
1749
1750 #ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1751 #define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1752 #define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1753 #endif
1754
1755 #define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1756 #define dlg_prompt L"Select a certificate to use for authentication"
1757 #define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1758 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1759
1760 static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
1761 {
1762 X509 *x;
1763 HCERTSTORE dstore;
1764 PCCERT_CONTEXT cert;
1765 CAPI_CTX *ctx;
1766 CAPI_KEY *key;
1767 HWND hwnd;
1768 int i, idx = -1;
1769 if (sk_X509_num(certs) == 1)
1770 return 0;
1771 ctx = ENGINE_get_ex_data(e, capi_idx);
1772 /* Create an in memory store of certificates */
1773 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1774 CERT_STORE_CREATE_NEW_FLAG, NULL);
1775 if (!dstore)
1776 {
1777 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1778 capi_addlasterror();
1779 goto err;
1780 }
1781 /* Add all certificates to store */
1782 for(i = 0; i < sk_X509_num(certs); i++)
1783 {
1784 x = sk_X509_value(certs, i);
1785 key = X509_get_ex_data(x, cert_capi_idx);
1786
1787 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1788 CERT_STORE_ADD_NEW, NULL))
1789 {
1790 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1791 capi_addlasterror();
1792 goto err;
1793 }
1794
1795 }
1796 hwnd = GetForegroundWindow();
1797 if (!hwnd)
1798 hwnd = GetActiveWindow();
1799 if (!hwnd && ctx->getconswindow)
1800 hwnd = ctx->getconswindow();
1801 /* Call dialog to select one */
1802 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1803 dlg_columns, 0, NULL);
1804
1805 /* Find matching cert from list */
1806 if (cert)
1807 {
1808 for(i = 0; i < sk_X509_num(certs); i++)
1809 {
1810 x = sk_X509_value(certs, i);
1811 key = X509_get_ex_data(x, cert_capi_idx);
1812 if (CertCompareCertificate(
1813 X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
1814 cert->pCertInfo,
1815 key->pcert->pCertInfo))
1816 {
1817 idx = i;
1818 break;
1819 }
1820 }
1821 }
1822
1823 err:
1824 if (dstore)
1825 CertCloseStore(dstore, 0);
1826 return idx;
1827
1828 }
1829 #endif
1830
1831 #else /* !__COMPILE_CAPIENG */
1832 #include <openssl/engine.h>
1833 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
1834 OPENSSL_EXPORT
1835 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
1836 OPENSSL_EXPORT
1837 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
1838 IMPLEMENT_DYNAMIC_CHECK_FN()
1839 #else
1840 void ENGINE_load_capi(void){}
1841 #endif
1842 #endif
Tomato firmware and modifications.