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9e47c347 1/* engines/e_capi.c */
40720ce3
MC		 2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
9e47c347
DSH		 4 * project.
5 */
6/* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
40720ce3 14 * notice, this list of conditions and the following disclaimer.
9e47c347
DSH		 15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 */
54
9e47c347
DSH		 55#include <stdio.h>
56#include <string.h>
57#include <openssl/crypto.h>
58#include <openssl/buffer.h>
9e47c347 59#include <openssl/bn.h>
9e47c347
DSH		 60
61#ifdef OPENSSL_SYS_WIN32
40720ce3 62# ifndef OPENSSL_NO_CAPIENG
9e47c347 63
40720ce3 64# include <openssl/rsa.h>
705c3dec 65
40720ce3 66# include <windows.h>
705c3dec 67
40720ce3
MC		 68# ifndef _WIN32_WINNT
69# define _WIN32_WINNT 0x0400
70# endif
705c3dec 71
40720ce3 72# include <wincrypt.h>
9e47c347 73
40720ce3
MC		 74# undef X509_EXTENSIONS
75# undef X509_CERT_PAIR
353415cc 76
705c3dec 77/* Definitions which may be missing from earlier version of headers */
40720ce3
MC		 78# ifndef CERT_STORE_OPEN_EXISTING_FLAG
79# define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
80# endif
705c3dec 81
40720ce3
MC		 82# ifndef CERT_STORE_CREATE_NEW_FLAG
83# define CERT_STORE_CREATE_NEW_FLAG 0x00002000
84# endif
b70871b6 85
40720ce3
MC		 86# ifndef CERT_SYSTEM_STORE_CURRENT_USER
87# define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
88# endif
f4c98a6a 89
40720ce3
MC		 90# include <openssl/engine.h>
91# include <openssl/pem.h>
92# include <openssl/x509v3.h>
9e47c347 93
40720ce3
MC		 94# include "e_capi_err.h"
95# include "e_capi_err.c"
9e47c347
DSH		 96
97static const char *engine_capi_id = "capi";
98static const char *engine_capi_name = "CryptoAPI ENGINE";
99
100typedef struct CAPI_CTX_st CAPI_CTX;
101typedef struct CAPI_KEY_st CAPI_KEY;
102
103static void capi_addlasterror(void);
104static void capi_adderror(DWORD err);
105
40720ce3 106static void CAPI_trace(CAPI_CTX * ctx, char *format, ...);
9e47c347 107
40720ce3
MC		 108static int capi_list_providers(CAPI_CTX * ctx, BIO *out);
109static int capi_list_containers(CAPI_CTX * ctx, BIO *out);
110int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *storename);
111void capi_free_key(CAPI_KEY * key);
9e47c347 112
40720ce3
MC		 113static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
114 HCERTSTORE hstore);
9e47c347 115
40720ce3 116CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id);
9e47c347
DSH		 117
118static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
40720ce3
MC		 119 UI_METHOD *ui_method, void *callback_data);
120static int capi_rsa_sign(int dtype, const unsigned char *m,
121 unsigned int m_len, unsigned char *sigret,
122 unsigned int *siglen, const RSA *rsa);
9e47c347 123static int capi_rsa_priv_enc(int flen, const unsigned char *from,
40720ce3 124 unsigned char *to, RSA *rsa, int padding);
9e47c347 125static int capi_rsa_priv_dec(int flen, const unsigned char *from,
40720ce3 126 unsigned char *to, RSA *rsa, int padding);
9e47c347
DSH		 127static int capi_rsa_free(RSA *rsa);
128
80ec6cc8 129static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
40720ce3 130 DSA *dsa);
80ec6cc8 131static int capi_dsa_free(DSA *dsa);
f4c98a6a
DSH		 132
133static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
40720ce3
MC		 134 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
135 EVP_PKEY **pkey, STACK_OF(X509) **pother,
136 UI_METHOD *ui_method,
137 void *callback_data);
3dc46642
DSH		 138
139static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
40720ce3 140# ifdef OPENSSL_CAPIENG_DIALOG
3dc46642 141static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
40720ce3 142# endif
3dc46642 143
40720ce3
MC		 144typedef PCCERT_CONTEXT(WINAPI *CERTDLG) (HCERTSTORE, HWND, LPCWSTR,
145 LPCWSTR, DWORD, DWORD, void *);
146typedef HWND(WINAPI *GETCONSWIN) (void);
3dc46642 147
40720ce3
MC		 148/*
149 * This structure contains CAPI ENGINE specific data: it contains various
150 * global options and affects how other functions behave.
9e47c347
DSH		 151 */
152
40720ce3
MC		 153# define CAPI_DBG_TRACE 2
154# define CAPI_DBG_ERROR 1
9e47c347
DSH		 155
156struct CAPI_CTX_st {
40720ce3
MC		 157 int debug_level;
158 char *debug_file;
159 /* Parameters to use for container lookup */
160 DWORD keytype;
161 LPSTR cspname;
162 DWORD csptype;
163 /* Certificate store name to use */
164 LPSTR storename;
165 LPSTR ssl_client_store;
166 /* System store flags */
167 DWORD store_flags;
9e47c347
DSH		 168/* Lookup string meanings in load_private_key */
169/* Substring of subject: uses "storename" */
40720ce3 170# define CAPI_LU_SUBSTR 1
9e47c347 171/* Friendly name: uses storename */
40720ce3 172# define CAPI_LU_FNAME 2
9e47c347 173/* Container name: uses cspname, keytype */
40720ce3
MC		 174# define CAPI_LU_CONTNAME 3
175 int lookup_method;
9e47c347
DSH		 176/* Info to dump with dumpcerts option */
177/* Issuer and serial name strings */
40720ce3 178# define CAPI_DMP_SUMMARY 0x1
9e47c347 179/* Friendly name */
40720ce3 180# define CAPI_DMP_FNAME 0x2
9e47c347 181/* Full X509_print dump */
40720ce3 182# define CAPI_DMP_FULL 0x4
9e47c347 183/* Dump PEM format certificate */
40720ce3 184# define CAPI_DMP_PEM 0x8
9e47c347 185/* Dump pseudo key (if possible) */
40720ce3 186# define CAPI_DMP_PSKEY 0x10
9e47c347 187/* Dump key info (if possible) */
40720ce3
MC		 188# define CAPI_DMP_PKEYINFO 0x20
189 DWORD dump_flags;
190 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
191 CERTDLG certselectdlg;
192 GETCONSWIN getconswindow;
9e47c347
DSH		 193};
194
9e47c347 195static CAPI_CTX *capi_ctx_new();
40720ce3
MC		 196static void capi_ctx_free(CAPI_CTX * ctx);
197static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
198 int check);
199static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx);
200
201# define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
202# define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
203# define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
204# define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
205# define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
206# define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
207# define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
208# define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
209# define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
210# define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
211# define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
212# define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
213# define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
214# define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
9e47c347
DSH		 215
216static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
40720ce3
MC		 217 {CAPI_CMD_LIST_CERTS,
218 "list_certs",
219 "List all certificates in store",
220 ENGINE_CMD_FLAG_NO_INPUT},
221 {CAPI_CMD_LOOKUP_CERT,
222 "lookup_cert",
223 "Lookup and output certificates",
224 ENGINE_CMD_FLAG_STRING},
225 {CAPI_CMD_DEBUG_LEVEL,
226 "debug_level",
227 "debug level (1=errors, 2=trace)",
228 ENGINE_CMD_FLAG_NUMERIC},
229 {CAPI_CMD_DEBUG_FILE,
230 "debug_file",
231 "debugging filename)",
232 ENGINE_CMD_FLAG_STRING},
233 {CAPI_CMD_KEYTYPE,
234 "key_type",
235 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
236 ENGINE_CMD_FLAG_NUMERIC},
237 {CAPI_CMD_LIST_CSPS,
238 "list_csps",
239 "List all CSPs",
240 ENGINE_CMD_FLAG_NO_INPUT},
241 {CAPI_CMD_SET_CSP_IDX,
242 "csp_idx",
243 "Set CSP by index",
244 ENGINE_CMD_FLAG_NUMERIC},
245 {CAPI_CMD_SET_CSP_NAME,
246 "csp_name",
247 "Set CSP name, (default CSP used if not specified)",
248 ENGINE_CMD_FLAG_STRING},
249 {CAPI_CMD_SET_CSP_TYPE,
250 "csp_type",
251 "Set CSP type, (default RSA_PROV_FULL)",
252 ENGINE_CMD_FLAG_NUMERIC},
253 {CAPI_CMD_LIST_CONTAINERS,
254 "list_containers",
255 "list container names",
256 ENGINE_CMD_FLAG_NO_INPUT},
257 {CAPI_CMD_LIST_OPTIONS,
258 "list_options",
259 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
260 "32=private key info)",
261 ENGINE_CMD_FLAG_NUMERIC},
262 {CAPI_CMD_LOOKUP_METHOD,
263 "lookup_method",
264 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
265 ENGINE_CMD_FLAG_NUMERIC},
266 {CAPI_CMD_STORE_NAME,
267 "store_name",
268 "certificate store name, default \"MY\"",
269 ENGINE_CMD_FLAG_STRING},
270 {CAPI_CMD_STORE_FLAGS,
271 "store_flags",
272 "Certificate store flags: 1 = system store",
273 ENGINE_CMD_FLAG_NUMERIC},
274
275 {0, NULL, NULL, 0}
276};
9e47c347
DSH		 277
278static int capi_idx = -1;
279static int rsa_capi_idx = -1;
0330a13a 280static int dsa_capi_idx = -1;
f4c98a6a 281static int cert_capi_idx = -1;
9e47c347 282
40720ce3
MC		 283static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
284{
285 int ret = 1;
286 CAPI_CTX *ctx;
287 BIO *out;
288 if (capi_idx == -1) {
289 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
290 return 0;
291 }
292 ctx = ENGINE_get_ex_data(e, capi_idx);
293 out = BIO_new_fp(stdout, BIO_NOCLOSE);
294 switch (cmd) {
295 case CAPI_CMD_LIST_CSPS:
296 ret = capi_list_providers(ctx, out);
297 break;
298
299 case CAPI_CMD_LIST_CERTS:
300 ret = capi_list_certs(ctx, out, NULL);
301 break;
302
303 case CAPI_CMD_LOOKUP_CERT:
304 ret = capi_list_certs(ctx, out, p);
305 break;
306
307 case CAPI_CMD_LIST_CONTAINERS:
308 ret = capi_list_containers(ctx, out);
309 break;
310
311 case CAPI_CMD_STORE_NAME:
312 if (ctx->storename)
313 OPENSSL_free(ctx->storename);
314 ctx->storename = BUF_strdup(p);
315 CAPI_trace(ctx, "Setting store name to %s\n", p);
316 break;
317
318 case CAPI_CMD_STORE_FLAGS:
319 if (i & 1) {
320 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
321 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
322 } else {
323 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
324 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
325 }
326 CAPI_trace(ctx, "Setting flags to %d\n", i);
327 break;
328
329 case CAPI_CMD_DEBUG_LEVEL:
330 ctx->debug_level = (int)i;
331 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
332 break;
333
334 case CAPI_CMD_DEBUG_FILE:
335 ctx->debug_file = BUF_strdup(p);
336 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
337 break;
338
339 case CAPI_CMD_KEYTYPE:
340 ctx->keytype = i;
341 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
342 break;
343
344 case CAPI_CMD_SET_CSP_IDX:
345 ret = capi_ctx_set_provname_idx(ctx, i);
346 break;
347
348 case CAPI_CMD_LIST_OPTIONS:
349 ctx->dump_flags = i;
350 break;
351
352 case CAPI_CMD_LOOKUP_METHOD:
353 if (i < 1 || i > 3) {
354 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
355 return 0;
356 }
357 ctx->lookup_method = i;
358 break;
359
360 case CAPI_CMD_SET_CSP_NAME:
361 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
362 break;
363
364 case CAPI_CMD_SET_CSP_TYPE:
365 ctx->csptype = i;
366 break;
367
368 default:
369 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
370 ret = 0;
371 }
372
373 BIO_free(out);
374 return ret;
375
376}
377
378static RSA_METHOD capi_rsa_method = {
379 "CryptoAPI RSA method",
380 0, /* pub_enc */
381 0, /* pub_dec */
382 capi_rsa_priv_enc, /* priv_enc */
383 capi_rsa_priv_dec, /* priv_dec */
384 0, /* rsa_mod_exp */
385 0, /* bn_mod_exp */
386 0, /* init */
387 capi_rsa_free, /* finish */
388 RSA_FLAG_SIGN_VER, /* flags */
389 NULL, /* app_data */
390 capi_rsa_sign, /* rsa_sign */
391 0 /* rsa_verify */
392};
9e47c347 393
40720ce3
MC		 394static DSA_METHOD capi_dsa_method = {
395 "CryptoAPI DSA method",
396 capi_dsa_do_sign, /* dsa_do_sign */
397 0, /* dsa_sign_setup */
398 0, /* dsa_do_verify */
399 0, /* dsa_mod_exp */
400 0, /* bn_mod_exp */
401 0, /* init */
402 capi_dsa_free, /* finish */
403 0, /* flags */
404 NULL, /* app_data */
405 0, /* dsa_paramgen */
406 0 /* dsa_keygen */
407};
9e47c347 408
40720ce3
MC		 409static int capi_init(ENGINE *e)
410{
411 CAPI_CTX *ctx;
412 const RSA_METHOD *ossl_rsa_meth;
413 const DSA_METHOD *ossl_dsa_meth;
414
415 if (capi_idx < 0) {
416 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
417 if (capi_idx < 0)
418 goto memerr;
419
420 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
421
422 /* Setup RSA_METHOD */
423 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
424 ossl_rsa_meth = RSA_PKCS1_SSLeay();
425 capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
426 capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
427 capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
428 capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
429
430 /* Setup DSA Method */
431 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
432 ossl_dsa_meth = DSA_OpenSSL();
433 capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
434 capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
435 capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
436 }
437
438 ctx = capi_ctx_new();
439 if (!ctx)
440 goto memerr;
441
442 ENGINE_set_ex_data(e, capi_idx, ctx);
443
444# ifdef OPENSSL_CAPIENG_DIALOG
445 {
446 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
447 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
448 if (cryptui)
449 ctx->certselectdlg =
450 (CERTDLG) GetProcAddress(cryptui,
451 "CryptUIDlgSelectCertificateFromStore");
452 if (kernel)
453 ctx->getconswindow =
454 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
455 if (cryptui && !OPENSSL_isservice())
456 ctx->client_cert_select = cert_select_dialog;
457 }
458# endif
459
460 return 1;
461
462 memerr:
463 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
464 return 0;
465
466 return 1;
467}
9e47c347
DSH		 468
469static int capi_destroy(ENGINE *e)
40720ce3
MC		 470{
471 ERR_unload_CAPI_strings();
472 return 1;
473}
9e47c347
DSH		 474
475static int capi_finish(ENGINE *e)
40720ce3
MC		 476{
477 CAPI_CTX *ctx;
478 ctx = ENGINE_get_ex_data(e, capi_idx);
479 capi_ctx_free(ctx);
480 ENGINE_set_ex_data(e, capi_idx, NULL);
481 return 1;
482}
483
484/*
485 * CryptoAPI key application data. This contains a handle to the private key
486 * container (for sign operations) and a handle to the key (for decrypt
487 * operations).
9e47c347
DSH		 488 */
489
40720ce3
MC		 490struct CAPI_KEY_st {
491 /* Associated certificate context (if any) */
492 PCCERT_CONTEXT pcert;
493 HCRYPTPROV hprov;
494 HCRYPTKEY key;
495 DWORD keyspec;
496};
9e47c347 497
777d717c 498static int bind_capi(ENGINE *e)
40720ce3
MC		 499{
500 if (!ENGINE_set_id(e, engine_capi_id)
501 || !ENGINE_set_name(e, engine_capi_name)
502 || !ENGINE_set_init_function(e, capi_init)
503 || !ENGINE_set_finish_function(e, capi_finish)
504 || !ENGINE_set_destroy_function(e, capi_destroy)
505 || !ENGINE_set_RSA(e, &capi_rsa_method)
506 || !ENGINE_set_DSA(e, &capi_dsa_method)
507 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
508 || !ENGINE_set_load_ssl_client_cert_function(e,
509 capi_load_ssl_client_cert)
510 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
511 || !ENGINE_set_ctrl_function(e, capi_ctrl))
512 return 0;
513 ERR_load_CAPI_strings();
514
515 return 1;
516
517}
518
519# ifndef OPENSSL_NO_DYNAMIC_ENGINE
777d717c 520static int bind_helper(ENGINE *e, const char *id)
40720ce3
MC		 521{
522 if (id && (strcmp(id, engine_capi_id) != 0))
523 return 0;
524 if (!bind_capi(e))
525 return 0;
526 return 1;
527}
528
9e47c347 529IMPLEMENT_DYNAMIC_CHECK_FN()
40720ce3
MC		 530 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
531# else
777d717c 532static ENGINE *engine_capi(void)
40720ce3
MC		 533{
534 ENGINE *ret = ENGINE_new();
535 if (!ret)
536 return NULL;
537 if (!bind_capi(ret)) {
538 ENGINE_free(ret);
539 return NULL;
540 }
541 return ret;
542}
777d717c
DSH		 543
544void ENGINE_load_capi(void)
40720ce3
MC		 545{
546 /* Copied from eng_[openssl|dyn].c */
547 ENGINE *toadd = engine_capi();
548 if (!toadd)
549 return;
550 ENGINE_add(toadd);
551 ENGINE_free(toadd);
552 ERR_clear_error();
553}
554# endif
0330a13a
DSH		 555
556static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
40720ce3
MC		 557{
558 int i;
559 /*
560 * Reverse buffer in place: since this is a keyblob structure that will
561 * be freed up after conversion anyway it doesn't matter if we change
562 * it.
563 */
564 for (i = 0; i < binlen / 2; i++) {
565 unsigned char c;
566 c = bin[i];
567 bin[i] = bin[binlen - i - 1];
568 bin[binlen - i - 1] = c;
569 }
570
571 if (!BN_bin2bn(bin, binlen, bn))
572 return 0;
573 return 1;
574}
0330a13a 575
f4c98a6a
DSH		 576/* Given a CAPI_KEY get an EVP_PKEY structure */
577
40720ce3
MC		 578static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY * key)
579{
580 unsigned char *pubkey = NULL;
581 DWORD len;
582 BLOBHEADER *bh;
583 RSA *rkey = NULL;
584 DSA *dkey = NULL;
585 EVP_PKEY *ret = NULL;
586 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
587 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
588 capi_addlasterror();
589 return NULL;
590 }
591
592 pubkey = OPENSSL_malloc(len);
593
594 if (!pubkey)
595 goto memerr;
596
597 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
598 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
599 capi_addlasterror();
600 goto err;
601 }
602
603 bh = (BLOBHEADER *) pubkey;
604 if (bh->bType != PUBLICKEYBLOB) {
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 RSAPUBKEY *rp;
610 DWORD rsa_modlen;
611 unsigned char *rsa_modulus;
612 rp = (RSAPUBKEY *) (bh + 1);
613 if (rp->magic != 0x31415352) {
614 char magstr[10];
615 BIO_snprintf(magstr, 10, "%lx", rp->magic);
616 CAPIerr(CAPI_F_CAPI_GET_PKEY,
617 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
618 ERR_add_error_data(2, "magic=0x", magstr);
619 goto err;
620 }
621 rsa_modulus = (unsigned char *)(rp + 1);
622 rkey = RSA_new_method(eng);
623 if (!rkey)
624 goto memerr;
625
626 rkey->e = BN_new();
627 rkey->n = BN_new();
628
629 if (!rkey->e || !rkey->n)
630 goto memerr;
631
632 if (!BN_set_word(rkey->e, rp->pubexp))
633 goto memerr;
634
635 rsa_modlen = rp->bitlen / 8;
636 if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
637 goto memerr;
638
639 RSA_set_ex_data(rkey, rsa_capi_idx, key);
640
641 if (!(ret = EVP_PKEY_new()))
642 goto memerr;
643
644 EVP_PKEY_assign_RSA(ret, rkey);
645 rkey = NULL;
646
647 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
648 DSSPUBKEY *dp;
649 DWORD dsa_plen;
650 unsigned char *btmp;
651 dp = (DSSPUBKEY *) (bh + 1);
652 if (dp->magic != 0x31535344) {
653 char magstr[10];
654 BIO_snprintf(magstr, 10, "%lx", dp->magic);
655 CAPIerr(CAPI_F_CAPI_GET_PKEY,
656 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
657 ERR_add_error_data(2, "magic=0x", magstr);
658 goto err;
659 }
660 dsa_plen = dp->bitlen / 8;
661 btmp = (unsigned char *)(dp + 1);
662 dkey = DSA_new_method(eng);
663 if (!dkey)
664 goto memerr;
665 dkey->p = BN_new();
666 dkey->q = BN_new();
667 dkey->g = BN_new();
668 dkey->pub_key = BN_new();
669 if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
670 goto memerr;
671 if (!lend_tobn(dkey->p, btmp, dsa_plen))
672 goto memerr;
673 btmp += dsa_plen;
674 if (!lend_tobn(dkey->q, btmp, 20))
675 goto memerr;
676 btmp += 20;
677 if (!lend_tobn(dkey->g, btmp, dsa_plen))
678 goto memerr;
679 btmp += dsa_plen;
680 if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
681 goto memerr;
682 btmp += dsa_plen;
683
684 DSA_set_ex_data(dkey, dsa_capi_idx, key);
685
686 if (!(ret = EVP_PKEY_new()))
687 goto memerr;
688
689 EVP_PKEY_assign_DSA(ret, dkey);
690 dkey = NULL;
691 } else {
692 char algstr[10];
693 BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
694 CAPIerr(CAPI_F_CAPI_GET_PKEY,
695 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
696 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
697 goto err;
698 }
699
700 err:
701 if (pubkey)
702 OPENSSL_free(pubkey);
703 if (!ret) {
704 if (rkey)
705 RSA_free(rkey);
706 if (dkey)
707 DSA_free(dkey);
708 }
709
710 return ret;
711
712 memerr:
713 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
714 goto err;
715
716}
9e47c347 717
f4c98a6a 718static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
40720ce3
MC		 719 UI_METHOD *ui_method, void *callback_data)
720{
721 CAPI_CTX *ctx;
722 CAPI_KEY *key;
723 EVP_PKEY *ret;
724 ctx = ENGINE_get_ex_data(eng, capi_idx);
f4c98a6a 725
40720ce3
MC		 726 if (!ctx) {
727 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
728 return NULL;
729 }
f4c98a6a 730
40720ce3 731 key = capi_find_key(ctx, key_id);
f4c98a6a 732
40720ce3
MC		 733 if (!key)
734 return NULL;
f4c98a6a 735
40720ce3 736 ret = capi_get_pkey(eng, key);
f4c98a6a 737
40720ce3
MC		 738 if (!ret)
739 capi_free_key(key);
740 return ret;
f4c98a6a 741
40720ce3 742}
f4c98a6a 743
9e47c347
DSH		 744/* CryptoAPI RSA operations */
745
746int capi_rsa_priv_enc(int flen, const unsigned char *from,
40720ce3
MC		 747 unsigned char *to, RSA *rsa, int padding)
748{
749 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
750 return -1;
751}
9e47c347
DSH		 752
753int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
40720ce3
MC		 754 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
755{
756 ALG_ID alg;
757 HCRYPTHASH hash;
758 DWORD slen;
759 unsigned int i;
760 int ret = -1;
761 CAPI_KEY *capi_key;
762 CAPI_CTX *ctx;
763
764 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
765
766 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
767
768 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
769 if (!capi_key) {
770 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
771 return -1;
772 }
9e47c347 773/* Convert the signature type to a CryptoAPI algorithm ID */
40720ce3
MC		 774 switch (dtype) {
775 case NID_sha1:
776 alg = CALG_SHA1;
777 break;
778
779 case NID_md5:
780 alg = CALG_MD5;
781 break;
782
783 case NID_md5_sha1:
784 alg = CALG_SSL3_SHAMD5;
785 break;
786 default:
787 {
788 char algstr[10];
789 BIO_snprintf(algstr, 10, "%lx", dtype);
790 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
791 ERR_add_error_data(2, "NID=0x", algstr);
792 return -1;
793 }
794 }
9e47c347
DSH		 795
796/* Create the hash object */
40720ce3
MC		 797 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
798 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
799 capi_addlasterror();
800 return -1;
801 }
9e47c347
DSH		 802/* Set the hash value to the value passed */
803
40720ce3
MC		 804 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
805 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
806 capi_addlasterror();
807 goto err;
808 }
9e47c347
DSH		 809
810/* Finally sign it */
40720ce3
MC		 811 slen = RSA_size(rsa);
812 if (!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
813 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
814 capi_addlasterror();
815 goto err;
816 } else {
817 ret = 1;
818 /* Inplace byte reversal of signature */
819 for (i = 0; i < slen / 2; i++) {
820 unsigned char c;
821 c = sigret[i];
822 sigret[i] = sigret[slen - i - 1];
823 sigret[slen - i - 1] = c;
824 }
825 *siglen = slen;
826 }
827
828 /* Now cleanup */
829
830 err:
831 CryptDestroyHash(hash);
832
833 return ret;
834}
9e47c347
DSH		 835
836int capi_rsa_priv_dec(int flen, const unsigned char *from,
40720ce3
MC		 837 unsigned char *to, RSA *rsa, int padding)
838{
839 int i;
840 unsigned char *tmpbuf;
841 CAPI_KEY *capi_key;
842 CAPI_CTX *ctx;
843 ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
844
845 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
846
847 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
848 if (!capi_key) {
849 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
850 return -1;
851 }
852
853 if (padding != RSA_PKCS1_PADDING) {
854 char errstr[10];
855 BIO_snprintf(errstr, 10, "%d", padding);
856 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
857 ERR_add_error_data(2, "padding=", errstr);
858 return -1;
859 }
860
861 /* Create temp reverse order version of input */
862 if (!(tmpbuf = OPENSSL_malloc(flen))) {
863 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
864 return -1;
865 }
866 for (i = 0; i < flen; i++)
867 tmpbuf[flen - i - 1] = from[i];
868
869 /* Finally decrypt it */
870 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen)) {
871 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
872 capi_addlasterror();
873 OPENSSL_free(tmpbuf);
874 return -1;
875 } else
876 memcpy(to, tmpbuf, flen);
877
878 OPENSSL_free(tmpbuf);
879
880 return flen;
881}
9e47c347
DSH		 882
883static int capi_rsa_free(RSA *rsa)
40720ce3
MC		 884{
885 CAPI_KEY *capi_key;
886 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
887 capi_free_key(capi_key);
888 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
889 return 1;
890}
9e47c347 891
3aaeb5c1
DSH		 892/* CryptoAPI DSA operations */
893
80ec6cc8 894static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
40720ce3
MC		 895 DSA *dsa)
896{
897 HCRYPTHASH hash;
898 DWORD slen;
899 DSA_SIG *ret = NULL;
900 CAPI_KEY *capi_key;
901 CAPI_CTX *ctx;
902 unsigned char csigbuf[40];
903
904 ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
905
906 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
907
908 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
909
910 if (!capi_key) {
911 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
912 return NULL;
913 }
914
915 if (dlen != 20) {
916 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
917 return NULL;
918 }
919
920 /* Create the hash object */
921 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
922 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
923 capi_addlasterror();
924 return NULL;
925 }
926
927 /* Set the hash value to the value passed */
928 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
929 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
930 capi_addlasterror();
931 goto err;
932 }
933
934 /* Finally sign it */
935 slen = sizeof(csigbuf);
936 if (!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
937 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
938 capi_addlasterror();
939 goto err;
940 } else {
941 ret = DSA_SIG_new();
942 if (!ret)
943 goto err;
944 ret->r = BN_new();
945 ret->s = BN_new();
946 if (!ret->r || !ret->s)
947 goto err;
948 if (!lend_tobn(ret->r, csigbuf, 20)
949 || !lend_tobn(ret->s, csigbuf + 20, 20)) {
950 DSA_SIG_free(ret);
951 ret = NULL;
952 goto err;
953 }
954 }
955
956 /* Now cleanup */
957
958 err:
959 OPENSSL_cleanse(csigbuf, 40);
960 CryptDestroyHash(hash);
961 return ret;
962}
80ec6cc8
DSH		 963
964static int capi_dsa_free(DSA *dsa)
40720ce3
MC		 965{
966 CAPI_KEY *capi_key;
967 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
968 capi_free_key(capi_key);
969 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
970 return 1;
971}
972
973static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
974 va_list argptr)
975{
976 BIO *out;
977
978 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
979 return;
980 out = BIO_new_file(ctx->debug_file, "a+");
981 BIO_vprintf(out, format, argptr);
982 BIO_free(out);
983}
984
985static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
986{
987 va_list args;
988 va_start(args, format);
989 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
990 va_end(args);
991}
9e47c347
DSH		 992
993static void capi_addlasterror(void)
40720ce3
MC		 994{
995 capi_adderror(GetLastError());
996}
9e47c347
DSH		 997
998static void capi_adderror(DWORD err)
40720ce3
MC		 999{
1000 char errstr[10];
1001 BIO_snprintf(errstr, 10, "%lX", err);
1002 ERR_add_error_data(2, "Error code= 0x", errstr);
1003}
9e47c347
DSH		 1004
1005static char *wide_to_asc(LPWSTR wstr)
40720ce3
MC		 1006{
1007 char *str;
1008 int len_0, sz;
1009
1010 if (!wstr)
1011 return NULL;
1012 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1013 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1014 if (!sz) {
1015 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1016 return NULL;
1017 }
1018 str = OPENSSL_malloc(sz);
1019 if (!str) {
1020 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1021 return NULL;
1022 }
1023 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1024 OPENSSL_free(str);
1025 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1026 return NULL;
1027 }
1028 return str;
1029}
1030
1031static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1032 DWORD idx)
1033{
1034 LPSTR name;
1035 DWORD len, err;
1036 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1037 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len)) {
1038 err = GetLastError();
1039 if (err == ERROR_NO_MORE_ITEMS)
1040 return 2;
1041 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1042 capi_adderror(err);
1043 return 0;
1044 }
1045 name = OPENSSL_malloc(len);
1046 if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len)) {
1047 err = GetLastError();
1048 if (err == ERROR_NO_MORE_ITEMS)
1049 return 2;
1050 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1051 capi_adderror(err);
1052 return 0;
1053 }
1054 *pname = name;
1055 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name,
1056 *ptype);
1057
1058 return 1;
1059}
1060
1061static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1062{
1063 DWORD idx, ptype;
1064 int ret;
1065 LPSTR provname = NULL;
1066 CAPI_trace(ctx, "capi_list_providers\n");
1067 BIO_printf(out, "Available CSPs:\n");
1068 for (idx = 0;; idx++) {
1069 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1070 if (ret == 2)
1071 break;
1072 if (ret == 0)
1073 break;
1074 BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
1075 OPENSSL_free(provname);
1076 }
1077 return 1;
1078}
1079
1080static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1081{
1082 int ret = 1;
1083 HCRYPTPROV hprov;
1084 DWORD err, idx, flags, buflen = 0, clen;
1085 LPSTR cname;
1086 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1087 ctx->csptype);
1088 if (!CryptAcquireContextA
1089 (&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1090 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1091 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1092 capi_addlasterror();
1093 return 0;
1094 }
1095 if (!CryptGetProvParam
1096 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1097 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1098 capi_addlasterror();
1099 CryptReleaseContext(hprov, 0);
1100 return 0;
1101 }
1102 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1103 if (buflen == 0)
1104 buflen = 1024;
1105 cname = OPENSSL_malloc(buflen);
1106 if (!cname) {
1107 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1108 goto err;
1109 }
1110
1111 for (idx = 0;; idx++) {
1112 clen = buflen;
1113 cname[0] = 0;
1114
1115 if (idx == 0)
1116 flags = CRYPT_FIRST;
1117 else
1118 flags = 0;
1119 if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags)) {
1120 err = GetLastError();
1121 if (err == ERROR_NO_MORE_ITEMS)
1122 goto done;
1123 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1124 capi_adderror(err);
1125 goto err;
1126 }
1127 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1128 cname, clen, idx, flags);
1129 if (!cname[0] && (clen == buflen)) {
1130 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1131 goto done;
1132 }
1133 BIO_printf(out, "%d. %s\n", idx, cname);
1134 }
1135 err:
1136
1137 ret = 0;
1138
1139 done:
1140 if (cname)
1141 OPENSSL_free(cname);
1142 CryptReleaseContext(hprov, 0);
1143
1144 return ret;
1145}
1146
1147CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1148{
1149 DWORD len;
1150 CRYPT_KEY_PROV_INFO *pinfo;
1151
1152 if (!CertGetCertificateContextProperty
1153 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1154 return NULL;
1155 pinfo = OPENSSL_malloc(len);
1156 if (!pinfo) {
1157 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1158 return NULL;
1159 }
1160 if (!CertGetCertificateContextProperty
1161 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1162 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1163 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1164 capi_addlasterror();
1165 OPENSSL_free(pinfo);
1166 return NULL;
1167 }
1168 return pinfo;
1169}
1170
1171static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1172 CRYPT_KEY_PROV_INFO * pinfo)
1173{
1174 char *provname = NULL, *contname = NULL;
1175 if (!pinfo) {
1176 BIO_printf(out, " No Private Key\n");
1177 return;
1178 }
1179 provname = wide_to_asc(pinfo->pwszProvName);
1180 contname = wide_to_asc(pinfo->pwszContainerName);
1181 if (!provname || !contname)
1182 goto err;
1183
1184 BIO_printf(out, " Private Key Info:\n");
1185 BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname,
1186 pinfo->dwProvType);
1187 BIO_printf(out, " Container Name: %s, Key Type %d\n", contname,
1188 pinfo->dwKeySpec);
1189 err:
1190 if (provname)
1191 OPENSSL_free(provname);
1192 if (contname)
1193 OPENSSL_free(contname);
1194}
1195
1196char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1197{
1198 LPWSTR wfname;
1199 DWORD dlen;
1200
1201 CAPI_trace(ctx, "capi_cert_get_fname\n");
1202 if (!CertGetCertificateContextProperty
1203 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1204 return NULL;
1205 wfname = OPENSSL_malloc(dlen);
1206 if (CertGetCertificateContextProperty
1207 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1208 char *fname = wide_to_asc(wfname);
1209 OPENSSL_free(wfname);
1210 return fname;
1211 }
1212 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1213 capi_addlasterror();
1214
1215 OPENSSL_free(wfname);
1216 return NULL;
1217}
1218
1219void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
1220{
1221 X509 *x;
1222 unsigned char *p;
1223 unsigned long flags = ctx->dump_flags;
1224 if (flags & CAPI_DMP_FNAME) {
1225 char *fname;
1226 fname = capi_cert_get_fname(ctx, cert);
1227 if (fname) {
1228 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1229 OPENSSL_free(fname);
1230 } else
1231 BIO_printf(out, " <No Friendly Name>\n");
1232 }
1233
1234 p = cert->pbCertEncoded;
1235 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1236 if (!x)
1237 BIO_printf(out, " <Can't parse certificate>\n");
1238 if (flags & CAPI_DMP_SUMMARY) {
1239 BIO_printf(out, " Subject: ");
1240 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1241 BIO_printf(out, "\n Issuer: ");
1242 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1243 BIO_printf(out, "\n");
1244 }
1245 if (flags & CAPI_DMP_FULL)
1246 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1247
1248 if (flags & CAPI_DMP_PKEYINFO) {
1249 CRYPT_KEY_PROV_INFO *pinfo;
1250 pinfo = capi_get_prov_info(ctx, cert);
1251 capi_dump_prov_info(ctx, out, pinfo);
1252 if (pinfo)
1253 OPENSSL_free(pinfo);
1254 }
1255
1256 if (flags & CAPI_DMP_PEM)
1257 PEM_write_bio_X509(out, x);
1258 X509_free(x);
1259}
1260
1261HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
1262{
1263 HCERTSTORE hstore;
1264
1265 if (!storename)
1266 storename = ctx->storename;
1267 if (!storename)
1268 storename = "MY";
1269 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1270
1271 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1272 ctx->store_flags, storename);
1273 if (!hstore) {
1274 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1275 capi_addlasterror();
1276 }
1277 return hstore;
1278}
1279
1280int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1281{
1282 char *storename;
1283 int idx;
1284 int ret = 1;
1285 HCERTSTORE hstore;
1286 PCCERT_CONTEXT cert = NULL;
1287
1288 storename = ctx->storename;
1289 if (!storename)
1290 storename = "MY";
1291 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1292
1293 hstore = capi_open_store(ctx, storename);
1294 if (!hstore)
1295 return 0;
1296 if (id) {
1297 cert = capi_find_cert(ctx, id, hstore);
1298 if (!cert) {
1299 ret = 0;
1300 goto err;
1301 }
1302 capi_dump_cert(ctx, out, cert);
1303 CertFreeCertificateContext(cert);
1304 } else {
1305 for (idx = 0;; idx++) {
1306 LPWSTR fname = NULL;
1307 cert = CertEnumCertificatesInStore(hstore, cert);
1308 if (!cert)
1309 break;
1310 BIO_printf(out, "Certificate %d\n", idx);
1311 capi_dump_cert(ctx, out, cert);
1312 }
1313 }
1314 err:
1315 CertCloseStore(hstore, 0);
1316 return ret;
1317}
1318
1319static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1320 HCERTSTORE hstore)
1321{
1322 PCCERT_CONTEXT cert = NULL;
1323 char *fname = NULL;
1324 int match;
1325 switch (ctx->lookup_method) {
1326 case CAPI_LU_SUBSTR:
1327 return CertFindCertificateInStore(hstore,
1328 X509_ASN_ENCODING, 0,
1329 CERT_FIND_SUBJECT_STR_A, id, NULL);
1330 case CAPI_LU_FNAME:
1331 for (;;) {
1332 cert = CertEnumCertificatesInStore(hstore, cert);
1333 if (!cert)
1334 return NULL;
1335 fname = capi_cert_get_fname(ctx, cert);
1336 if (fname) {
1337 if (strcmp(fname, id))
1338 match = 0;
1339 else
1340 match = 1;
1341 OPENSSL_free(fname);
1342 if (match)
1343 return cert;
1344 }
1345 }
1346 default:
1347 return NULL;
1348 }
1349}
1350
1351static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const char *contname,
1352 char *provname, DWORD ptype, DWORD keyspec)
1353{
1354 CAPI_KEY *key;
1355 DWORD dwFlags = 0;
1356 key = OPENSSL_malloc(sizeof(CAPI_KEY));
1357 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1358 contname, provname, ptype);
1359 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
34b5ba3b 1360 dwFlags = CRYPT_MACHINE_KEYSET;
40720ce3
MC		 1361 if (!CryptAcquireContextA
1362 (&key->hprov, contname, provname, ptype, dwFlags)) {
1363 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1364 capi_addlasterror();
1365 goto err;
1366 }
1367 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1368 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1369 capi_addlasterror();
1370 CryptReleaseContext(key->hprov, 0);
1371 goto err;
1372 }
1373 key->keyspec = keyspec;
1374 key->pcert = NULL;
1375 return key;
1376
1377 err:
1378 OPENSSL_free(key);
1379 return NULL;
1380}
1381
1382static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1383{
1384 CAPI_KEY *key = NULL;
1385 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1386 char *provname = NULL, *contname = NULL;
1387 pinfo = capi_get_prov_info(ctx, cert);
1388 if (!pinfo)
1389 goto err;
1390 provname = wide_to_asc(pinfo->pwszProvName);
1391 contname = wide_to_asc(pinfo->pwszContainerName);
1392 if (!provname || !contname)
1393 goto err;
1394 key = capi_get_key(ctx, contname, provname,
1395 pinfo->dwProvType, pinfo->dwKeySpec);
1396
1397 err:
1398 if (pinfo)
1399 OPENSSL_free(pinfo);
1400 if (provname)
1401 OPENSSL_free(provname);
1402 if (contname)
1403 OPENSSL_free(contname);
1404 return key;
1405}
1406
1407CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1408{
1409 PCCERT_CONTEXT cert;
1410 HCERTSTORE hstore;
1411 CAPI_KEY *key = NULL;
1412 switch (ctx->lookup_method) {
1413 case CAPI_LU_SUBSTR:
1414 case CAPI_LU_FNAME:
1415 hstore = capi_open_store(ctx, NULL);
1416 if (!hstore)
1417 return NULL;
1418 cert = capi_find_cert(ctx, id, hstore);
1419 if (cert) {
1420 key = capi_get_cert_key(ctx, cert);
1421 CertFreeCertificateContext(cert);
1422 }
1423 CertCloseStore(hstore, 0);
1424 break;
1425
1426 case CAPI_LU_CONTNAME:
1427 key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype, ctx->keytype);
1428 break;
1429 }
1430
1431 return key;
1432}
1433
1434void capi_free_key(CAPI_KEY * key)
1435{
1436 if (!key)
1437 return;
1438 CryptDestroyKey(key->key);
1439 CryptReleaseContext(key->hprov, 0);
1440 if (key->pcert)
1441 CertFreeCertificateContext(key->pcert);
1442 OPENSSL_free(key);
1443}
9e47c347
DSH		 1444
1445/* Initialize a CAPI_CTX structure */
1446
1447static CAPI_CTX *capi_ctx_new()
40720ce3
MC		 1448{
1449 CAPI_CTX *ctx;
1450 ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
1451 if (!ctx) {
1452 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1453 return NULL;
1454 }
1455 ctx->cspname = NULL;
1456 ctx->csptype = PROV_RSA_FULL;
1457 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1458 ctx->keytype = AT_KEYEXCHANGE;
1459 ctx->storename = NULL;
1460 ctx->ssl_client_store = NULL;
1461 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1462 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1463 ctx->lookup_method = CAPI_LU_SUBSTR;
1464 ctx->debug_level = 0;
1465 ctx->debug_file = NULL;
1466 ctx->client_cert_select = cert_select_simple;
1467 return ctx;
1468}
1469
1470static void capi_ctx_free(CAPI_CTX * ctx)
1471{
1472 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1473 if (!ctx)
1474 return;
1475 if (ctx->cspname)
1476 OPENSSL_free(ctx->cspname);
1477 if (ctx->debug_file)
1478 OPENSSL_free(ctx->debug_file);
1479 if (ctx->storename)
1480 OPENSSL_free(ctx->storename);
1481 if (ctx->ssl_client_store)
1482 OPENSSL_free(ctx->ssl_client_store);
1483 OPENSSL_free(ctx);
1484}
1485
1486static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1487 int check)
1488{
1489 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1490 if (check) {
1491 HCRYPTPROV hprov;
1492 if (!CryptAcquireContextA(&hprov, NULL, pname, type,
1493 CRYPT_VERIFYCONTEXT)) {
1494 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1495 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1496 capi_addlasterror();
1497 return 0;
1498 }
1499 CryptReleaseContext(hprov, 0);
1500 }
1501 if (ctx->cspname)
1502 OPENSSL_free(ctx->cspname);
1503 ctx->cspname = BUF_strdup(pname);
1504 ctx->csptype = type;
1505 return 1;
1506}
1507
1508static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1509{
1510 LPSTR pname;
1511 DWORD type;
1512 int res;
1513 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1514 return 0;
1515 res = capi_ctx_set_provname(ctx, pname, type, 0);
1516 OPENSSL_free(pname);
1517 return res;
1518}
9e47c347 1519
f4c98a6a 1520static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
40720ce3
MC		 1521{
1522 int i;
1523 X509_NAME *nm;
1524 /* Special case: empty list: match anything */
1525 if (sk_X509_NAME_num(ca_dn) <= 0)
1526 return 1;
1527 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1528 nm = sk_X509_NAME_value(ca_dn, i);
1529 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1530 return 1;
1531 }
1532 return 0;
1533}
f4c98a6a
DSH		 1534
1535static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
40720ce3
MC		 1536 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1537 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1538 UI_METHOD *ui_method,
1539 void *callback_data)
1540{
1541 STACK_OF(X509) *certs = NULL;
1542 X509 *x;
1543 char *storename;
1544 const char *p;
1545 int i, client_cert_idx;
1546 HCERTSTORE hstore;
1547 PCCERT_CONTEXT cert = NULL, excert = NULL;
1548 CAPI_CTX *ctx;
1549 CAPI_KEY *key;
1550 ctx = ENGINE_get_ex_data(e, capi_idx);
1551
1552 *pcert = NULL;
1553 *pkey = NULL;
1554
1555 storename = ctx->ssl_client_store;
1556 if (!storename)
1557 storename = "MY";
1558
1559 hstore = capi_open_store(ctx, storename);
1560 if (!hstore)
1561 return 0;
1562 /* Enumerate all certificates collect any matches */
1563 for (i = 0;; i++) {
1564 cert = CertEnumCertificatesInStore(hstore, cert);
1565 if (!cert)
1566 break;
1567 p = cert->pbCertEncoded;
1568 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1569 if (!x) {
1570 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1571 continue;
1572 }
1573 if (cert_issuer_match(ca_dn, x)
1574 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1575 key = capi_get_cert_key(ctx, cert);
1576 if (!key) {
1577 X509_free(x);
1578 continue;
1579 }
1580 /*
1581 * Match found: attach extra data to it so we can retrieve the
1582 * key later.
1583 */
1584 excert = CertDuplicateCertificateContext(cert);
1585 key->pcert = excert;
1586 X509_set_ex_data(x, cert_capi_idx, key);
1587
1588 if (!certs)
1589 certs = sk_X509_new_null();
1590
1591 sk_X509_push(certs, x);
1592 } else
1593 X509_free(x);
1594
1595 }
1596
1597 if (cert)
1598 CertFreeCertificateContext(cert);
1599 if (hstore)
1600 CertCloseStore(hstore, 0);
1601
1602 if (!certs)
1603 return 0;
1604
1605 /* Select the appropriate certificate */
1606
1607 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1608
1609 /* Set the selected certificate and free the rest */
1610
1611 for (i = 0; i < sk_X509_num(certs); i++) {
1612 x = sk_X509_value(certs, i);
1613 if (i == client_cert_idx)
1614 *pcert = x;
1615 else {
1616 key = X509_get_ex_data(x, cert_capi_idx);
1617 capi_free_key(key);
1618 X509_free(x);
1619 }
1620 }
1621
1622 sk_X509_free(certs);
1623
1624 if (!*pcert)
1625 return 0;
1626
1627 /* Setup key for selected certificate */
1628
1629 key = X509_get_ex_data(*pcert, cert_capi_idx);
1630 *pkey = capi_get_pkey(e, key);
1631 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1632
1633 return 1;
1634
1635}
f4c98a6a
DSH		 1636
1637/* Simple client cert selection function: always select first */
1638
3dc46642 1639static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
40720ce3
MC		 1640{
1641 return 0;
1642}
f4c98a6a 1643
40720ce3 1644# ifdef OPENSSL_CAPIENG_DIALOG
f4c98a6a 1645
40720ce3
MC		 1646/*
1647 * More complex cert selection function, using standard function
f4c98a6a
DSH		 1648 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1649 */
1650
40720ce3
MC		 1651/*
1652 * Definitions which are in cryptuiapi.h but this is not present in older
705c3dec
DSH		 1653 * versions of headers.
1654 */
1655
40720ce3
MC		 1656# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1657# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1658# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1659# endif
f4c98a6a 1660
40720ce3
MC		 1661# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1662# define dlg_prompt L"Select a certificate to use for authentication"
1663# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1664 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
f4c98a6a 1665
3dc46642 1666static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
40720ce3
MC		 1667{
1668 X509 *x;
1669 HCERTSTORE dstore;
1670 PCCERT_CONTEXT cert;
1671 CAPI_CTX *ctx;
1672 CAPI_KEY *key;
1673 HWND hwnd;
1674 int i, idx = -1;
1675 if (sk_X509_num(certs) == 1)
1676 return 0;
1677 ctx = ENGINE_get_ex_data(e, capi_idx);
1678 /* Create an in memory store of certificates */
1679 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1680 CERT_STORE_CREATE_NEW_FLAG, NULL);
1681 if (!dstore) {
1682 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1683 capi_addlasterror();
1684 goto err;
1685 }
1686 /* Add all certificates to store */
1687 for (i = 0; i < sk_X509_num(certs); i++) {
1688 x = sk_X509_value(certs, i);
1689 key = X509_get_ex_data(x, cert_capi_idx);
1690
1691 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1692 CERT_STORE_ADD_NEW, NULL)) {
1693 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1694 capi_addlasterror();
1695 goto err;
1696 }
1697
1698 }
1699 hwnd = GetForegroundWindow();
1700 if (!hwnd)
1701 hwnd = GetActiveWindow();
1702 if (!hwnd && ctx->getconswindow)
1703 hwnd = ctx->getconswindow();
1704 /* Call dialog to select one */
1705 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1706 dlg_columns, 0, NULL);
1707
1708 /* Find matching cert from list */
1709 if (cert) {
1710 for (i = 0; i < sk_X509_num(certs); i++) {
1711 x = sk_X509_value(certs, i);
1712 key = X509_get_ex_data(x, cert_capi_idx);
1713 if (CertCompareCertificate
1714 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1715 key->pcert->pCertInfo)) {
1716 idx = i;
1717 break;
1718 }
1719 }
1720 }
1721
1722 err:
1723 if (dstore)
1724 CertCloseStore(dstore, 0);
1725 return idx;
1726
1727}
1728# endif
1729
1730# endif
1731#else /* !WIN32 */
1732# include <openssl/engine.h>
1733# ifndef OPENSSL_NO_DYNAMIC_ENGINE
6455100f 1734OPENSSL_EXPORT
40720ce3
MC		 1735 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1736{
1737 return 0;
1738}
1739
6455100f 1740IMPLEMENT_DYNAMIC_CHECK_FN()
40720ce3 1741# endif
9e47c347 1742#endif
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