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[thirdparty/openssl.git] / engines / e_capi.c
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0f113f3e 1/*
440e5d80 2 * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
7a18ecb2 3 *
440e5d80
RS		 4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
7a18ecb2
DSH		 8 */
9
7a18ecb2
DSH		 10#include <stdio.h>
11#include <string.h>
cc4c2306 12#include <stdlib.h>
cc4c2306 13
7a18ecb2 14#include <openssl/crypto.h>
7a18ecb2
DSH		 15
16#ifdef OPENSSL_SYS_WIN32
0f113f3e 17# ifndef OPENSSL_NO_CAPIENG
7a18ecb2 18
0f113f3e
MC		 19# include <openssl/buffer.h>
20# include <openssl/bn.h>
21# include <openssl/rsa.h>
22# include <openssl/dsa.h>
a0f3679b 23
0f113f3e
MC		 24# ifndef _WIN32_WINNT
25# define _WIN32_WINNT 0x0400
26# endif
a0f3679b 27
0f113f3e
MC		 28# include <windows.h>
29# include <wincrypt.h>
30# include <malloc.h>
31# ifndef alloca
32# define alloca _alloca
33# endif
7a18ecb2 34
f87e3078
AP		 35/*
36 * This module uses several "new" interfaces, among which is
37 * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
38 * one of possible values you can pass to function in question. By
39 * checking if it's defined we can see if wincrypt.h and accompanying
6b02f9fa
DSH		 40 * crypt32.lib are in shape. The native MingW32 headers up to and
41 * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
42 * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
43 * so we check for these too and avoid compiling.
44 * Yes, it's rather "weak" test and if compilation fails,
45 * then re-configure with -DOPENSSL_NO_CAPIENG.
f87e3078 46 */
0f113f3e 47# if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
6b02f9fa
DSH		 48 defined(CERT_STORE_PROV_SYSTEM_A) && \
49 defined(CERT_STORE_READONLY_FLAG)
0f113f3e
MC		 50# define __COMPILE_CAPIENG
51# endif /* CERT_KEY_PROV_INFO_PROP_ID */
52# endif /* OPENSSL_NO_CAPIENG */
53#endif /* OPENSSL_SYS_WIN32 */
f87e3078
AP		 54
55#ifdef __COMPILE_CAPIENG
56
0f113f3e 57# undef X509_EXTENSIONS
11f3cee9 58
a0f3679b 59/* Definitions which may be missing from earlier version of headers */
0f113f3e
MC		 60# ifndef CERT_STORE_OPEN_EXISTING_FLAG
61# define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
62# endif
63
64# ifndef CERT_STORE_CREATE_NEW_FLAG
65# define CERT_STORE_CREATE_NEW_FLAG 0x00002000
66# endif
67
68# ifndef CERT_SYSTEM_STORE_CURRENT_USER
69# define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
70# endif
71
72# ifndef ALG_SID_SHA_256
73# define ALG_SID_SHA_256 12
74# endif
75# ifndef ALG_SID_SHA_384
76# define ALG_SID_SHA_384 13
77# endif
78# ifndef ALG_SID_SHA_512
79# define ALG_SID_SHA_512 14
80# endif
81
82# ifndef CALG_SHA_256
83# define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256)
84# endif
85# ifndef CALG_SHA_384
86# define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384)
87# endif
88# ifndef CALG_SHA_512
89# define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512)
90# endif
91
7b548d3f
DSH		 92# ifndef PROV_RSA_AES
93# define PROV_RSA_AES 24
94# endif
95
0f113f3e
MC		 96# include <openssl/engine.h>
97# include <openssl/pem.h>
98# include <openssl/x509v3.h>
99
100# include "e_capi_err.h"
101# include "e_capi_err.c"
7a18ecb2
DSH		 102
103static const char *engine_capi_id = "capi";
104static const char *engine_capi_name = "CryptoAPI ENGINE";
105
106typedef struct CAPI_CTX_st CAPI_CTX;
107typedef struct CAPI_KEY_st CAPI_KEY;
108
109static void capi_addlasterror(void);
110static void capi_adderror(DWORD err);
111
0f113f3e 112static void CAPI_trace(CAPI_CTX * ctx, char *format, ...);
7a18ecb2 113
0f113f3e
MC		 114static int capi_list_providers(CAPI_CTX * ctx, BIO *out);
115static int capi_list_containers(CAPI_CTX * ctx, BIO *out);
116int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *storename);
117void capi_free_key(CAPI_KEY * key);
7a18ecb2 118
0f113f3e
MC		 119static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
120 HCERTSTORE hstore);
7a18ecb2 121
0f113f3e 122CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id);
7a18ecb2
DSH		 123
124static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
0f113f3e
MC		 125 UI_METHOD *ui_method, void *callback_data);
126static int capi_rsa_sign(int dtype, const unsigned char *m,
127 unsigned int m_len, unsigned char *sigret,
128 unsigned int *siglen, const RSA *rsa);
7a18ecb2 129static int capi_rsa_priv_enc(int flen, const unsigned char *from,
0f113f3e 130 unsigned char *to, RSA *rsa, int padding);
7a18ecb2 131static int capi_rsa_priv_dec(int flen, const unsigned char *from,
0f113f3e 132 unsigned char *to, RSA *rsa, int padding);
7a18ecb2
DSH		 133static int capi_rsa_free(RSA *rsa);
134
f0483bf7 135# ifndef OPENSSL_NO_DSA
7a18ecb2 136static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
0f113f3e 137 DSA *dsa);
7a18ecb2 138static int capi_dsa_free(DSA *dsa);
f0483bf7 139# endif
b3c8dd4e
DSH		 140
141static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
0f113f3e
MC		 142 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
143 EVP_PKEY **pkey, STACK_OF(X509) **pother,
144 UI_METHOD *ui_method,
145 void *callback_data);
1cd504e7
DSH		 146
147static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
0f113f3e 148# ifdef OPENSSL_CAPIENG_DIALOG
1cd504e7 149static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
0f113f3e 150# endif
1cd504e7 151
b3599dbb 152void engine_load_capi_int(void);
7b9f8f7f 153
0f113f3e
MC		 154typedef PCCERT_CONTEXT(WINAPI *CERTDLG) (HCERTSTORE, HWND, LPCWSTR,
155 LPCWSTR, DWORD, DWORD, void *);
156typedef HWND(WINAPI *GETCONSWIN) (void);
1cd504e7 157
0f113f3e
MC		 158/*
159 * This structure contains CAPI ENGINE specific data: it contains various
160 * global options and affects how other functions behave.
7a18ecb2
DSH		 161 */
162
0f113f3e
MC		 163# define CAPI_DBG_TRACE 2
164# define CAPI_DBG_ERROR 1
7a18ecb2
DSH		 165
166struct CAPI_CTX_st {
0f113f3e
MC		 167 int debug_level;
168 char *debug_file;
169 /* Parameters to use for container lookup */
170 DWORD keytype;
171 LPSTR cspname;
172 DWORD csptype;
173 /* Certificate store name to use */
174 LPSTR storename;
175 LPSTR ssl_client_store;
176 /* System store flags */
177 DWORD store_flags;
7a18ecb2
DSH		 178/* Lookup string meanings in load_private_key */
179/* Substring of subject: uses "storename" */
0f113f3e 180# define CAPI_LU_SUBSTR 1
7a18ecb2 181/* Friendly name: uses storename */
0f113f3e 182# define CAPI_LU_FNAME 2
7a18ecb2 183/* Container name: uses cspname, keytype */
0f113f3e
MC		 184# define CAPI_LU_CONTNAME 3
185 int lookup_method;
7a18ecb2
DSH		 186/* Info to dump with dumpcerts option */
187/* Issuer and serial name strings */
0f113f3e 188# define CAPI_DMP_SUMMARY 0x1
7a18ecb2 189/* Friendly name */
0f113f3e 190# define CAPI_DMP_FNAME 0x2
7a18ecb2 191/* Full X509_print dump */
0f113f3e 192# define CAPI_DMP_FULL 0x4
7a18ecb2 193/* Dump PEM format certificate */
0f113f3e 194# define CAPI_DMP_PEM 0x8
7a18ecb2 195/* Dump pseudo key (if possible) */
0f113f3e 196# define CAPI_DMP_PSKEY 0x10
7a18ecb2 197/* Dump key info (if possible) */
0f113f3e
MC		 198# define CAPI_DMP_PKEYINFO 0x20
199 DWORD dump_flags;
200 int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
201 CERTDLG certselectdlg;
202 GETCONSWIN getconswindow;
7a18ecb2
DSH		 203};
204
57ebe748 205static CAPI_CTX *capi_ctx_new(void);
0f113f3e
MC		 206static void capi_ctx_free(CAPI_CTX * ctx);
207static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
208 int check);
209static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx);
210
211# define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
212# define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
213# define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
214# define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
215# define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
216# define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
217# define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
218# define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
219# define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
220# define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
221# define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
222# define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
223# define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
224# define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
7a18ecb2
DSH		 225
226static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
0f113f3e
MC		 227 {CAPI_CMD_LIST_CERTS,
228 "list_certs",
229 "List all certificates in store",
230 ENGINE_CMD_FLAG_NO_INPUT},
231 {CAPI_CMD_LOOKUP_CERT,
232 "lookup_cert",
233 "Lookup and output certificates",
234 ENGINE_CMD_FLAG_STRING},
235 {CAPI_CMD_DEBUG_LEVEL,
236 "debug_level",
237 "debug level (1=errors, 2=trace)",
238 ENGINE_CMD_FLAG_NUMERIC},
239 {CAPI_CMD_DEBUG_FILE,
240 "debug_file",
241 "debugging filename)",
242 ENGINE_CMD_FLAG_STRING},
243 {CAPI_CMD_KEYTYPE,
244 "key_type",
245 "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
246 ENGINE_CMD_FLAG_NUMERIC},
247 {CAPI_CMD_LIST_CSPS,
248 "list_csps",
249 "List all CSPs",
250 ENGINE_CMD_FLAG_NO_INPUT},
251 {CAPI_CMD_SET_CSP_IDX,
252 "csp_idx",
253 "Set CSP by index",
254 ENGINE_CMD_FLAG_NUMERIC},
255 {CAPI_CMD_SET_CSP_NAME,
256 "csp_name",
257 "Set CSP name, (default CSP used if not specified)",
258 ENGINE_CMD_FLAG_STRING},
259 {CAPI_CMD_SET_CSP_TYPE,
260 "csp_type",
261 "Set CSP type, (default RSA_PROV_FULL)",
262 ENGINE_CMD_FLAG_NUMERIC},
263 {CAPI_CMD_LIST_CONTAINERS,
264 "list_containers",
265 "list container names",
266 ENGINE_CMD_FLAG_NO_INPUT},
267 {CAPI_CMD_LIST_OPTIONS,
268 "list_options",
269 "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
270 "32=private key info)",
271 ENGINE_CMD_FLAG_NUMERIC},
272 {CAPI_CMD_LOOKUP_METHOD,
273 "lookup_method",
274 "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
275 ENGINE_CMD_FLAG_NUMERIC},
276 {CAPI_CMD_STORE_NAME,
277 "store_name",
278 "certificate store name, default \"MY\"",
279 ENGINE_CMD_FLAG_STRING},
280 {CAPI_CMD_STORE_FLAGS,
281 "store_flags",
282 "Certificate store flags: 1 = system store",
283 ENGINE_CMD_FLAG_NUMERIC},
284
285 {0, NULL, NULL, 0}
286};
7a18ecb2
DSH		 287
288static int capi_idx = -1;
289static int rsa_capi_idx = -1;
290static int dsa_capi_idx = -1;
7d537d4f 291static int cert_capi_idx = -1;
7a18ecb2 292
0f113f3e
MC		 293static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
294{
295 int ret = 1;
296 CAPI_CTX *ctx;
297 BIO *out;
298 if (capi_idx == -1) {
299 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
300 return 0;
301 }
302 ctx = ENGINE_get_ex_data(e, capi_idx);
303 out = BIO_new_fp(stdout, BIO_NOCLOSE);
304 if (out == NULL) {
305 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR);
306 return 0;
307 }
308 switch (cmd) {
309 case CAPI_CMD_LIST_CSPS:
310 ret = capi_list_providers(ctx, out);
311 break;
312
313 case CAPI_CMD_LIST_CERTS:
314 ret = capi_list_certs(ctx, out, NULL);
315 break;
316
317 case CAPI_CMD_LOOKUP_CERT:
318 ret = capi_list_certs(ctx, out, p);
319 break;
320
321 case CAPI_CMD_LIST_CONTAINERS:
322 ret = capi_list_containers(ctx, out);
323 break;
324
325 case CAPI_CMD_STORE_NAME:
b548a1f1 326 OPENSSL_free(ctx->storename);
7644a9ae 327 ctx->storename = OPENSSL_strdup(p);
0f113f3e
MC		 328 CAPI_trace(ctx, "Setting store name to %s\n", p);
329 break;
330
331 case CAPI_CMD_STORE_FLAGS:
332 if (i & 1) {
333 ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
334 ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
335 } else {
336 ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
337 ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
338 }
339 CAPI_trace(ctx, "Setting flags to %d\n", i);
340 break;
341
342 case CAPI_CMD_DEBUG_LEVEL:
343 ctx->debug_level = (int)i;
344 CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
345 break;
346
347 case CAPI_CMD_DEBUG_FILE:
7644a9ae 348 ctx->debug_file = OPENSSL_strdup(p);
0f113f3e
MC		 349 CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
350 break;
351
352 case CAPI_CMD_KEYTYPE:
353 ctx->keytype = i;
354 CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
355 break;
356
357 case CAPI_CMD_SET_CSP_IDX:
358 ret = capi_ctx_set_provname_idx(ctx, i);
359 break;
360
361 case CAPI_CMD_LIST_OPTIONS:
362 ctx->dump_flags = i;
363 break;
364
365 case CAPI_CMD_LOOKUP_METHOD:
366 if (i < 1 || i > 3) {
367 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
368 BIO_free(out);
369 return 0;
370 }
371 ctx->lookup_method = i;
372 break;
373
374 case CAPI_CMD_SET_CSP_NAME:
375 ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
376 break;
377
378 case CAPI_CMD_SET_CSP_TYPE:
379 ctx->csptype = i;
380 break;
381
382 default:
383 CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
384 ret = 0;
385 }
386
387 BIO_free(out);
388 return ret;
389
390}
391
e9c2b100 392static RSA_METHOD *capi_rsa_method = NULL;
f0483bf7 393# ifndef OPENSSL_NO_DSA
6e9fa57c 394static DSA_METHOD *capi_dsa_method = NULL;
f0483bf7 395# endif
7a18ecb2 396
7b548d3f
DSH		 397static int use_aes_csp = 0;
398
0f113f3e
MC		 399static int capi_init(ENGINE *e)
400{
401 CAPI_CTX *ctx;
402 const RSA_METHOD *ossl_rsa_meth;
f0483bf7 403# ifndef OPENSSL_NO_DSA
0f113f3e 404 const DSA_METHOD *ossl_dsa_meth;
f0483bf7 405# endif
7b548d3f 406 HCRYPTPROV hprov;
0f113f3e
MC		 407
408 if (capi_idx < 0) {
409 capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
410 if (capi_idx < 0)
411 goto memerr;
412
413 cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
414
415 /* Setup RSA_METHOD */
416 rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
b0700d2c 417 ossl_rsa_meth = RSA_PKCS1_OpenSSL();
e9c2b100
RL		 418 if ( !RSA_meth_set_pub_enc(capi_rsa_method,
419 RSA_meth_get_pub_enc(ossl_rsa_meth))
420 || !RSA_meth_set_pub_dec(capi_rsa_method,
421 RSA_meth_get_pub_dec(ossl_rsa_meth))
422 || !RSA_meth_set_priv_enc(capi_rsa_method, capi_rsa_priv_enc)
423 || !RSA_meth_set_priv_dec(capi_rsa_method, capi_rsa_priv_dec)
424 || !RSA_meth_set_mod_exp(capi_rsa_method,
425 RSA_meth_get_mod_exp(ossl_rsa_meth))
426 || !RSA_meth_set_bn_mod_exp(capi_rsa_method,
427 RSA_meth_get_bn_mod_exp(ossl_rsa_meth))
428 || !RSA_meth_set_finish(capi_rsa_method, capi_rsa_free)
429 || !RSA_meth_set_sign(capi_rsa_method, capi_rsa_sign)) {
430 goto memerr;
431 }
0f113f3e 432
f0483bf7 433# ifndef OPENSSL_NO_DSA
0f113f3e
MC		 434 /* Setup DSA Method */
435 dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
436 ossl_dsa_meth = DSA_OpenSSL();
a517f7fc
MC		 437 if ( !DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign)
438 || !DSA_meth_set_verify(capi_dsa_method,
aa05e7ca 439 DSA_meth_get_verify(ossl_dsa_meth))
a517f7fc
MC		 440 || !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free)
441 || !DSA_meth_set_mod_exp(capi_dsa_method,
aa05e7ca 442 DSA_meth_get_mod_exp(ossl_dsa_meth))
a517f7fc 443 || !DSA_meth_set_bn_mod_exp(capi_dsa_method,
aa05e7ca 444 DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) {
a517f7fc
MC		 445 goto memerr;
446 }
f0483bf7 447# endif
0f113f3e
MC		 448 }
449
450 ctx = capi_ctx_new();
55646005 451 if (ctx == NULL)
0f113f3e
MC		 452 goto memerr;
453
454 ENGINE_set_ex_data(e, capi_idx, ctx);
455
456# ifdef OPENSSL_CAPIENG_DIALOG
457 {
458 HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
459 HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
460 if (cryptui)
461 ctx->certselectdlg =
462 (CERTDLG) GetProcAddress(cryptui,
463 "CryptUIDlgSelectCertificateFromStore");
464 if (kernel)
465 ctx->getconswindow =
466 (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow");
467 if (cryptui && !OPENSSL_isservice())
468 ctx->client_cert_select = cert_select_dialog;
469 }
470# endif
471
7b548d3f
DSH		 472 /* See if we support AES CSP */
473
474 if (CryptAcquireContext(&hprov, NULL, NULL, PROV_RSA_AES,
475 CRYPT_VERIFYCONTEXT)) {
476 use_aes_csp = 1;
477 CryptReleaseContext(hprov, 0);
478 }
479
0f113f3e
MC		 480 return 1;
481
482 memerr:
483 CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
484 return 0;
485
486 return 1;
487}
7a18ecb2
DSH		 488
489static int capi_destroy(ENGINE *e)
0f113f3e 490{
e9c2b100
RL		 491 RSA_meth_free(capi_rsa_method);
492 capi_rsa_method = NULL;
f0483bf7 493# ifndef OPENSSL_NO_DSA
6e9fa57c
MC		 494 DSA_meth_free(capi_dsa_method);
495 capi_dsa_method = NULL;
f0483bf7 496# endif
0f113f3e
MC		 497 ERR_unload_CAPI_strings();
498 return 1;
499}
7a18ecb2
DSH		 500
501static int capi_finish(ENGINE *e)
0f113f3e
MC		 502{
503 CAPI_CTX *ctx;
504 ctx = ENGINE_get_ex_data(e, capi_idx);
505 capi_ctx_free(ctx);
506 ENGINE_set_ex_data(e, capi_idx, NULL);
507 return 1;
508}
509
510/*
511 * CryptoAPI key application data. This contains a handle to the private key
512 * container (for sign operations) and a handle to the key (for decrypt
513 * operations).
7a18ecb2
DSH		 514 */
515
0f113f3e
MC		 516struct CAPI_KEY_st {
517 /* Associated certificate context (if any) */
518 PCCERT_CONTEXT pcert;
519 HCRYPTPROV hprov;
520 HCRYPTKEY key;
521 DWORD keyspec;
522};
7a18ecb2
DSH		 523
524static int bind_capi(ENGINE *e)
0f113f3e 525{
e9c2b100
RL		 526 capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0);
527 if (capi_rsa_method == NULL)
528 return 0;
f0483bf7 529# ifndef OPENSSL_NO_DSA
6e9fa57c
MC		 530 capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0);
531 if (capi_dsa_method == NULL)
e9c2b100 532 goto memerr;
f0483bf7 533# endif
0f113f3e
MC		 534 if (!ENGINE_set_id(e, engine_capi_id)
535 || !ENGINE_set_name(e, engine_capi_name)
536 || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL)
537 || !ENGINE_set_init_function(e, capi_init)
538 || !ENGINE_set_finish_function(e, capi_finish)
539 || !ENGINE_set_destroy_function(e, capi_destroy)
e9c2b100 540 || !ENGINE_set_RSA(e, capi_rsa_method)
f0483bf7 541# ifndef OPENSSL_NO_DSA
6e9fa57c 542 || !ENGINE_set_DSA(e, capi_dsa_method)
f0483bf7 543# endif
0f113f3e
MC		 544 || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
545 || !ENGINE_set_load_ssl_client_cert_function(e,
546 capi_load_ssl_client_cert)
547 || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
548 || !ENGINE_set_ctrl_function(e, capi_ctrl))
e9c2b100 549 goto memerr;
0f113f3e
MC		 550 ERR_load_CAPI_strings();
551
552 return 1;
e9c2b100
RL		 553 memerr:
554 RSA_meth_free(capi_rsa_method);
555 capi_rsa_method = NULL;
f0483bf7 556# ifndef OPENSSL_NO_DSA
e9c2b100
RL		 557 DSA_meth_free(capi_dsa_method);
558 capi_dsa_method = NULL;
f0483bf7 559# endif
e9c2b100 560 return 0;
0f113f3e
MC		 561}
562
563# ifndef OPENSSL_NO_DYNAMIC_ENGINE
7a18ecb2 564static int bind_helper(ENGINE *e, const char *id)
0f113f3e
MC		 565{
566 if (id && (strcmp(id, engine_capi_id) != 0))
567 return 0;
568 if (!bind_capi(e))
569 return 0;
570 return 1;
571}
572
7a18ecb2 573IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e
MC		 574 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
575# else
7a18ecb2 576static ENGINE *engine_capi(void)
0f113f3e
MC		 577{
578 ENGINE *ret = ENGINE_new();
55646005 579 if (ret == NULL)
0f113f3e
MC		 580 return NULL;
581 if (!bind_capi(ret)) {
582 ENGINE_free(ret);
583 return NULL;
584 }
585 return ret;
586}
7a18ecb2 587
7e74eaa6 588void engine_load_capi_int(void)
0f113f3e
MC		 589{
590 /* Copied from eng_[openssl|dyn].c */
591 ENGINE *toadd = engine_capi();
592 if (!toadd)
593 return;
594 ENGINE_add(toadd);
595 ENGINE_free(toadd);
596 ERR_clear_error();
597}
598# endif
7a18ecb2
DSH		 599
600static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
0f113f3e
MC		 601{
602 int i;
603 /*
604 * Reverse buffer in place: since this is a keyblob structure that will
605 * be freed up after conversion anyway it doesn't matter if we change
606 * it.
607 */
608 for (i = 0; i < binlen / 2; i++) {
609 unsigned char c;
610 c = bin[i];
611 bin[i] = bin[binlen - i - 1];
612 bin[binlen - i - 1] = c;
613 }
614
615 if (!BN_bin2bn(bin, binlen, bn))
616 return 0;
617 return 1;
618}
7a18ecb2 619
b3c8dd4e
DSH		 620/* Given a CAPI_KEY get an EVP_PKEY structure */
621
0f113f3e
MC		 622static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY * key)
623{
624 unsigned char *pubkey = NULL;
625 DWORD len;
626 BLOBHEADER *bh;
627 RSA *rkey = NULL;
628 DSA *dkey = NULL;
629 EVP_PKEY *ret = NULL;
630 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) {
631 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
632 capi_addlasterror();
633 return NULL;
634 }
635
636 pubkey = OPENSSL_malloc(len);
637
55646005 638 if (pubkey == NULL)
0f113f3e
MC		 639 goto memerr;
640
641 if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) {
642 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
643 capi_addlasterror();
644 goto err;
645 }
646
647 bh = (BLOBHEADER *) pubkey;
648 if (bh->bType != PUBLICKEYBLOB) {
649 CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
650 goto err;
651 }
652 if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) {
653 RSAPUBKEY *rp;
654 DWORD rsa_modlen;
e9c2b100 655 BIGNUM *e = NULL, *n = NULL;
0f113f3e
MC		 656 unsigned char *rsa_modulus;
657 rp = (RSAPUBKEY *) (bh + 1);
658 if (rp->magic != 0x31415352) {
659 char magstr[10];
660 BIO_snprintf(magstr, 10, "%lx", rp->magic);
661 CAPIerr(CAPI_F_CAPI_GET_PKEY,
662 CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
663 ERR_add_error_data(2, "magic=0x", magstr);
664 goto err;
665 }
666 rsa_modulus = (unsigned char *)(rp + 1);
667 rkey = RSA_new_method(eng);
668 if (!rkey)
669 goto memerr;
670
e9c2b100
RL		 671 e = BN_new();
672 n = BN_new();
0f113f3e 673
e9c2b100
RL		 674 if (e == NULL || n == NULL) {
675 BN_free(e);
676 BN_free(n);
0f113f3e 677 goto memerr;
e9c2b100 678 }
0f113f3e 679
e9c2b100
RL		 680 RSA_set0_key(rkey, n, e, NULL);
681
682 if (!BN_set_word(e, rp->pubexp))
0f113f3e
MC		 683 goto memerr;
684
685 rsa_modlen = rp->bitlen / 8;
e9c2b100 686 if (!lend_tobn(n, rsa_modulus, rsa_modlen))
0f113f3e
MC		 687 goto memerr;
688
689 RSA_set_ex_data(rkey, rsa_capi_idx, key);
690
75ebbd9a 691 if ((ret = EVP_PKEY_new()) == NULL)
0f113f3e
MC		 692 goto memerr;
693
694 EVP_PKEY_assign_RSA(ret, rkey);
695 rkey = NULL;
696
f0483bf7 697# ifndef OPENSSL_NO_DSA
0f113f3e
MC		 698 } else if (bh->aiKeyAlg == CALG_DSS_SIGN) {
699 DSSPUBKEY *dp;
700 DWORD dsa_plen;
701 unsigned char *btmp;
6e9fa57c 702 BIGNUM *p, *q, *g, *pub_key;
0f113f3e
MC		 703 dp = (DSSPUBKEY *) (bh + 1);
704 if (dp->magic != 0x31535344) {
705 char magstr[10];
706 BIO_snprintf(magstr, 10, "%lx", dp->magic);
707 CAPIerr(CAPI_F_CAPI_GET_PKEY,
708 CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
709 ERR_add_error_data(2, "magic=0x", magstr);
710 goto err;
711 }
712 dsa_plen = dp->bitlen / 8;
713 btmp = (unsigned char *)(dp + 1);
714 dkey = DSA_new_method(eng);
715 if (!dkey)
716 goto memerr;
6e9fa57c
MC		 717 p = BN_new();
718 q = BN_new();
719 g = BN_new();
720 pub_key = BN_new();
e9c2b100
RL		 721 if (p == NULL || q == NULL || g == NULL || pub_key == NULL) {
722 BN_free(p);
723 BN_free(q);
724 BN_free(g);
725 BN_free(pub_key);
0f113f3e 726 goto memerr;
e9c2b100 727 }
6e9fa57c
MC		 728 DSA_set0_pqg(dkey, p, q, g);
729 DSA_set0_key(dkey, pub_key, NULL);
730 if (!lend_tobn(p, btmp, dsa_plen))
0f113f3e
MC		 731 goto memerr;
732 btmp += dsa_plen;
6e9fa57c 733 if (!lend_tobn(q, btmp, 20))
0f113f3e
MC		 734 goto memerr;
735 btmp += 20;
6e9fa57c 736 if (!lend_tobn(g, btmp, dsa_plen))
0f113f3e
MC		 737 goto memerr;
738 btmp += dsa_plen;
6e9fa57c 739 if (!lend_tobn(pub_key, btmp, dsa_plen))
0f113f3e
MC		 740 goto memerr;
741 btmp += dsa_plen;
742
743 DSA_set_ex_data(dkey, dsa_capi_idx, key);
744
75ebbd9a 745 if ((ret = EVP_PKEY_new()) == NULL)
0f113f3e
MC		 746 goto memerr;
747
748 EVP_PKEY_assign_DSA(ret, dkey);
749 dkey = NULL;
f0483bf7 750# endif
0f113f3e
MC		 751 } else {
752 char algstr[10];
57ebe748 753 BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg);
0f113f3e
MC		 754 CAPIerr(CAPI_F_CAPI_GET_PKEY,
755 CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
756 ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
757 goto err;
758 }
759
760 err:
b548a1f1 761 OPENSSL_free(pubkey);
0f113f3e 762 if (!ret) {
d6407083 763 RSA_free(rkey);
f0483bf7 764# ifndef OPENSSL_NO_DSA
d6407083 765 DSA_free(dkey);
f0483bf7 766# endif
0f113f3e
MC		 767 }
768
769 return ret;
770
771 memerr:
772 CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
773 goto err;
774
775}
7a18ecb2 776
b3c8dd4e 777static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
0f113f3e
MC		 778 UI_METHOD *ui_method, void *callback_data)
779{
780 CAPI_CTX *ctx;
781 CAPI_KEY *key;
782 EVP_PKEY *ret;
783 ctx = ENGINE_get_ex_data(eng, capi_idx);
b3c8dd4e 784
0f113f3e
MC		 785 if (!ctx) {
786 CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
787 return NULL;
788 }
b3c8dd4e 789
0f113f3e 790 key = capi_find_key(ctx, key_id);
b3c8dd4e 791
0f113f3e
MC		 792 if (!key)
793 return NULL;
b3c8dd4e 794
0f113f3e 795 ret = capi_get_pkey(eng, key);
b3c8dd4e 796
0f113f3e
MC		 797 if (!ret)
798 capi_free_key(key);
799 return ret;
b3c8dd4e 800
0f113f3e 801}
b3c8dd4e 802
7a18ecb2
DSH		 803/* CryptoAPI RSA operations */
804
805int capi_rsa_priv_enc(int flen, const unsigned char *from,
0f113f3e
MC		 806 unsigned char *to, RSA *rsa, int padding)
807{
808 CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
809 return -1;
810}
7a18ecb2
DSH		 811
812int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
0f113f3e
MC		 813 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
814{
815 ALG_ID alg;
816 HCRYPTHASH hash;
817 DWORD slen;
818 unsigned int i;
819 int ret = -1;
820 CAPI_KEY *capi_key;
821 CAPI_CTX *ctx;
822
e9c2b100 823 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
0f113f3e
MC		 824
825 CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
826
827 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
828 if (!capi_key) {
829 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
830 return -1;
831 }
7a18ecb2 832/* Convert the signature type to a CryptoAPI algorithm ID */
0f113f3e
MC		 833 switch (dtype) {
834 case NID_sha256:
835 alg = CALG_SHA_256;
836 break;
837
838 case NID_sha384:
839 alg = CALG_SHA_384;
840 break;
841
842 case NID_sha512:
843 alg = CALG_SHA_512;
844 break;
845
846 case NID_sha1:
847 alg = CALG_SHA1;
848 break;
849
850 case NID_md5:
851 alg = CALG_MD5;
852 break;
853
854 case NID_md5_sha1:
855 alg = CALG_SSL3_SHAMD5;
856 break;
857 default:
858 {
859 char algstr[10];
57ebe748 860 BIO_snprintf(algstr, 10, "%x", dtype);
0f113f3e
MC		 861 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
862 ERR_add_error_data(2, "NID=0x", algstr);
863 return -1;
864 }
865 }
7a18ecb2
DSH		 866
867/* Create the hash object */
0f113f3e
MC		 868 if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) {
869 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
870 capi_addlasterror();
871 return -1;
872 }
7a18ecb2
DSH		 873/* Set the hash value to the value passed */
874
0f113f3e
MC		 875 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) {
876 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
877 capi_addlasterror();
878 goto err;
879 }
7a18ecb2
DSH		 880
881/* Finally sign it */
0f113f3e
MC		 882 slen = RSA_size(rsa);
883 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) {
884 CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
885 capi_addlasterror();
886 goto err;
887 } else {
888 ret = 1;
889 /* Inplace byte reversal of signature */
890 for (i = 0; i < slen / 2; i++) {
891 unsigned char c;
892 c = sigret[i];
893 sigret[i] = sigret[slen - i - 1];
894 sigret[slen - i - 1] = c;
895 }
896 *siglen = slen;
897 }
898
899 /* Now cleanup */
900
901 err:
902 CryptDestroyHash(hash);
903
904 return ret;
905}
7a18ecb2
DSH		 906
907int capi_rsa_priv_dec(int flen, const unsigned char *from,
0f113f3e
MC		 908 unsigned char *to, RSA *rsa, int padding)
909{
910 int i;
911 unsigned char *tmpbuf;
912 CAPI_KEY *capi_key;
913 CAPI_CTX *ctx;
57ebe748
AP		 914 DWORD dlen;
915
916 if (flen <= 0)
917 return flen;
918
e9c2b100 919 ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx);
0f113f3e
MC		 920
921 CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
922
923 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
924 if (!capi_key) {
925 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
926 return -1;
927 }
928
929 if (padding != RSA_PKCS1_PADDING) {
930 char errstr[10];
931 BIO_snprintf(errstr, 10, "%d", padding);
932 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
933 ERR_add_error_data(2, "padding=", errstr);
934 return -1;
935 }
936
937 /* Create temp reverse order version of input */
75ebbd9a 938 if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) {
0f113f3e
MC		 939 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
940 return -1;
941 }
942 for (i = 0; i < flen; i++)
943 tmpbuf[flen - i - 1] = from[i];
944
945 /* Finally decrypt it */
57ebe748
AP		 946 dlen = flen;
947 if (!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &dlen)) {
0f113f3e
MC		 948 CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
949 capi_addlasterror();
950 OPENSSL_free(tmpbuf);
951 return -1;
952 } else
57ebe748 953 memcpy(to, tmpbuf, (flen = (int)dlen));
0f113f3e
MC		 954
955 OPENSSL_free(tmpbuf);
956
957 return flen;
958}
7a18ecb2
DSH		 959
960static int capi_rsa_free(RSA *rsa)
0f113f3e
MC		 961{
962 CAPI_KEY *capi_key;
963 capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
964 capi_free_key(capi_key);
965 RSA_set_ex_data(rsa, rsa_capi_idx, 0);
966 return 1;
967}
7a18ecb2 968
f0483bf7 969# ifndef OPENSSL_NO_DSA
7a18ecb2
DSH		 970/* CryptoAPI DSA operations */
971
972static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
0f113f3e
MC		 973 DSA *dsa)
974{
975 HCRYPTHASH hash;
976 DWORD slen;
977 DSA_SIG *ret = NULL;
978 CAPI_KEY *capi_key;
979 CAPI_CTX *ctx;
980 unsigned char csigbuf[40];
981
6e9fa57c 982 ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx);
0f113f3e
MC		 983
984 CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
985
986 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
987
988 if (!capi_key) {
989 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
990 return NULL;
991 }
992
993 if (dlen != 20) {
994 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
995 return NULL;
996 }
997
998 /* Create the hash object */
999 if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) {
1000 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
1001 capi_addlasterror();
1002 return NULL;
1003 }
1004
1005 /* Set the hash value to the value passed */
1006 if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) {
1007 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
1008 capi_addlasterror();
1009 goto err;
1010 }
1011
1012 /* Finally sign it */
1013 slen = sizeof(csigbuf);
1014 if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) {
1015 CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
1016 capi_addlasterror();
1017 goto err;
1018 } else {
a8a35540 1019 BIGNUM *r = NULL, *s = NULL;
0f113f3e 1020 ret = DSA_SIG_new();
55646005 1021 if (ret == NULL)
0f113f3e 1022 goto err;
a8a35540
RL		 1023 DSA_SIG_get0(&r, &s, ret);
1024 if (!lend_tobn(r, csigbuf, 20)
1025 || !lend_tobn(s, csigbuf + 20, 20)) {
0f113f3e
MC		 1026 DSA_SIG_free(ret);
1027 ret = NULL;
1028 goto err;
1029 }
1030 }
1031
1032 /* Now cleanup */
1033
1034 err:
1035 OPENSSL_cleanse(csigbuf, 40);
1036 CryptDestroyHash(hash);
1037 return ret;
1038}
7a18ecb2
DSH		 1039
1040static int capi_dsa_free(DSA *dsa)
0f113f3e
MC		 1041{
1042 CAPI_KEY *capi_key;
1043 capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
1044 capi_free_key(capi_key);
1045 DSA_set_ex_data(dsa, dsa_capi_idx, 0);
1046 return 1;
1047}
f0483bf7 1048# endif
0f113f3e
MC		 1049
1050static void capi_vtrace(CAPI_CTX * ctx, int level, char *format,
1051 va_list argptr)
1052{
1053 BIO *out;
1054
1055 if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
1056 return;
1057 out = BIO_new_file(ctx->debug_file, "a+");
1058 if (out == NULL) {
1059 CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR);
1060 return;
1061 }
1062 BIO_vprintf(out, format, argptr);
1063 BIO_free(out);
1064}
1065
1066static void CAPI_trace(CAPI_CTX * ctx, char *format, ...)
1067{
1068 va_list args;
1069 va_start(args, format);
1070 capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
1071 va_end(args);
1072}
7a18ecb2
DSH		 1073
1074static void capi_addlasterror(void)
0f113f3e
MC		 1075{
1076 capi_adderror(GetLastError());
1077}
7a18ecb2
DSH		 1078
1079static void capi_adderror(DWORD err)
0f113f3e
MC		 1080{
1081 char errstr[10];
1082 BIO_snprintf(errstr, 10, "%lX", err);
1083 ERR_add_error_data(2, "Error code= 0x", errstr);
1084}
7a18ecb2 1085
cc4c2306 1086static char *wide_to_asc(LPCWSTR wstr)
0f113f3e
MC		 1087{
1088 char *str;
1089 int len_0, sz;
1090
1091 if (!wstr)
1092 return NULL;
1093 len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */
1094 sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL);
1095 if (!sz) {
1096 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1097 return NULL;
1098 }
1099 str = OPENSSL_malloc(sz);
55646005 1100 if (str == NULL) {
0f113f3e
MC		 1101 CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
1102 return NULL;
1103 }
1104 if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) {
1105 OPENSSL_free(str);
1106 CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
1107 return NULL;
1108 }
1109 return str;
1110}
1111
1112static int capi_get_provname(CAPI_CTX * ctx, LPSTR * pname, DWORD * ptype,
1113 DWORD idx)
1114{
1115 DWORD len, err;
1116 LPTSTR name;
1117 CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
1118 if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) {
1119 err = GetLastError();
1120 if (err == ERROR_NO_MORE_ITEMS)
1121 return 2;
1122 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1123 capi_adderror(err);
1124 return 0;
1125 }
1126 name = OPENSSL_malloc(len);
1127 if (name == NULL) {
1128 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE);
1129 return 0;
1130 }
1131 if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) {
1132 err = GetLastError();
1133 OPENSSL_free(name);
1134 if (err == ERROR_NO_MORE_ITEMS)
1135 return 2;
1136 CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
1137 capi_adderror(err);
1138 return 0;
1139 }
1140 if (sizeof(TCHAR) != sizeof(char)) {
1141 *pname = wide_to_asc((WCHAR *)name);
1142 OPENSSL_free(name);
1143 if (*pname == NULL)
1144 return 0;
1145 } else
1146 *pname = (char *)name;
1147 CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname,
1148 *ptype);
1149
1150 return 1;
1151}
1152
1153static int capi_list_providers(CAPI_CTX * ctx, BIO *out)
1154{
1155 DWORD idx, ptype;
1156 int ret;
1157 LPSTR provname = NULL;
1158 CAPI_trace(ctx, "capi_list_providers\n");
1159 BIO_printf(out, "Available CSPs:\n");
1160 for (idx = 0;; idx++) {
1161 ret = capi_get_provname(ctx, &provname, &ptype, idx);
1162 if (ret == 2)
1163 break;
1164 if (ret == 0)
1165 break;
57ebe748 1166 BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype);
0f113f3e
MC		 1167 OPENSSL_free(provname);
1168 }
1169 return 1;
1170}
1171
1172static int capi_list_containers(CAPI_CTX * ctx, BIO *out)
1173{
1174 int ret = 1;
1175 HCRYPTPROV hprov;
1176 DWORD err, idx, flags, buflen = 0, clen;
1177 LPSTR cname;
1178 LPTSTR cspname = NULL;
1179
1180 CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname,
1181 ctx->csptype);
1182 if (ctx->cspname && sizeof(TCHAR) != sizeof(char)) {
1183 if ((clen =
1184 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))) {
1185 cspname = alloca(clen * sizeof(WCHAR));
1186 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname,
1187 clen);
1188 }
1189 if (!cspname) {
1190 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1191 capi_addlasterror();
1192 return 0;
1193 }
1194 } else
1195 cspname = (TCHAR *)ctx->cspname;
1196 if (!CryptAcquireContext
1197 (&hprov, NULL, cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) {
1198 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS,
1199 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1200 capi_addlasterror();
1201 return 0;
1202 }
1203 if (!CryptGetProvParam
1204 (hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) {
1205 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1206 capi_addlasterror();
1207 CryptReleaseContext(hprov, 0);
1208 return 0;
1209 }
1210 CAPI_trace(ctx, "Got max container len %d\n", buflen);
1211 if (buflen == 0)
1212 buflen = 1024;
1213 cname = OPENSSL_malloc(buflen);
55646005 1214 if (cname == NULL) {
0f113f3e
MC		 1215 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
1216 goto err;
1217 }
1218
1219 for (idx = 0;; idx++) {
1220 clen = buflen;
1221 cname[0] = 0;
1222
1223 if (idx == 0)
1224 flags = CRYPT_FIRST;
1225 else
1226 flags = 0;
1227 if (!CryptGetProvParam
1228 (hprov, PP_ENUMCONTAINERS, (BYTE *) cname, &clen, flags)) {
1229 err = GetLastError();
1230 if (err == ERROR_NO_MORE_ITEMS)
1231 goto done;
1232 CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
1233 capi_adderror(err);
1234 goto err;
1235 }
1236 CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n",
1237 cname, clen, idx, flags);
1238 if (!cname[0] && (clen == buflen)) {
1239 CAPI_trace(ctx, "Enumerate bug: using workaround\n");
1240 goto done;
1241 }
57ebe748 1242 BIO_printf(out, "%lu. %s\n", idx, cname);
0f113f3e
MC		 1243 }
1244 err:
1245
1246 ret = 0;
1247
1248 done:
b548a1f1 1249 OPENSSL_free(cname);
0f113f3e
MC		 1250 CryptReleaseContext(hprov, 0);
1251
1252 return ret;
1253}
1254
57ebe748 1255static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
0f113f3e
MC		 1256{
1257 DWORD len;
1258 CRYPT_KEY_PROV_INFO *pinfo;
1259
1260 if (!CertGetCertificateContextProperty
1261 (cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
1262 return NULL;
1263 pinfo = OPENSSL_malloc(len);
55646005 1264 if (pinfo == NULL) {
0f113f3e
MC		 1265 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
1266 return NULL;
1267 }
1268 if (!CertGetCertificateContextProperty
1269 (cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) {
1270 CAPIerr(CAPI_F_CAPI_GET_PROV_INFO,
1271 CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
1272 capi_addlasterror();
1273 OPENSSL_free(pinfo);
1274 return NULL;
1275 }
1276 return pinfo;
1277}
1278
1279static void capi_dump_prov_info(CAPI_CTX * ctx, BIO *out,
1280 CRYPT_KEY_PROV_INFO * pinfo)
1281{
1282 char *provname = NULL, *contname = NULL;
1283 if (!pinfo) {
1284 BIO_printf(out, " No Private Key\n");
1285 return;
1286 }
1287 provname = wide_to_asc(pinfo->pwszProvName);
1288 contname = wide_to_asc(pinfo->pwszContainerName);
1289 if (!provname || !contname)
1290 goto err;
1291
1292 BIO_printf(out, " Private Key Info:\n");
57ebe748 1293 BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname,
0f113f3e 1294 pinfo->dwProvType);
57ebe748 1295 BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname,
0f113f3e
MC		 1296 pinfo->dwKeySpec);
1297 err:
b548a1f1
RS		 1298 OPENSSL_free(provname);
1299 OPENSSL_free(contname);
0f113f3e
MC		 1300}
1301
57ebe748 1302static char *capi_cert_get_fname(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
0f113f3e
MC		 1303{
1304 LPWSTR wfname;
1305 DWORD dlen;
1306
1307 CAPI_trace(ctx, "capi_cert_get_fname\n");
1308 if (!CertGetCertificateContextProperty
1309 (cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
1310 return NULL;
1311 wfname = OPENSSL_malloc(dlen);
1312 if (wfname == NULL)
1313 return NULL;
1314 if (CertGetCertificateContextProperty
1315 (cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) {
1316 char *fname = wide_to_asc(wfname);
1317 OPENSSL_free(wfname);
1318 return fname;
1319 }
1320 CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
1321 capi_addlasterror();
1322
1323 OPENSSL_free(wfname);
1324 return NULL;
1325}
1326
57ebe748 1327static void capi_dump_cert(CAPI_CTX * ctx, BIO *out, PCCERT_CONTEXT cert)
0f113f3e
MC		 1328{
1329 X509 *x;
57ebe748 1330 const unsigned char *p;
0f113f3e
MC		 1331 unsigned long flags = ctx->dump_flags;
1332 if (flags & CAPI_DMP_FNAME) {
1333 char *fname;
1334 fname = capi_cert_get_fname(ctx, cert);
1335 if (fname) {
1336 BIO_printf(out, " Friendly Name \"%s\"\n", fname);
1337 OPENSSL_free(fname);
1338 } else
1339 BIO_printf(out, " <No Friendly Name>\n");
1340 }
1341
1342 p = cert->pbCertEncoded;
1343 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1344 if (!x)
1345 BIO_printf(out, " <Can't parse certificate>\n");
1346 if (flags & CAPI_DMP_SUMMARY) {
1347 BIO_printf(out, " Subject: ");
1348 X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
1349 BIO_printf(out, "\n Issuer: ");
1350 X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
1351 BIO_printf(out, "\n");
1352 }
1353 if (flags & CAPI_DMP_FULL)
1354 X509_print_ex(out, x, XN_FLAG_ONELINE, 0);
1355
1356 if (flags & CAPI_DMP_PKEYINFO) {
1357 CRYPT_KEY_PROV_INFO *pinfo;
1358 pinfo = capi_get_prov_info(ctx, cert);
1359 capi_dump_prov_info(ctx, out, pinfo);
b548a1f1 1360 OPENSSL_free(pinfo);
0f113f3e
MC		 1361 }
1362
1363 if (flags & CAPI_DMP_PEM)
1364 PEM_write_bio_X509(out, x);
1365 X509_free(x);
1366}
1367
57ebe748 1368static HCERTSTORE capi_open_store(CAPI_CTX * ctx, char *storename)
0f113f3e
MC		 1369{
1370 HCERTSTORE hstore;
1371
1372 if (!storename)
1373 storename = ctx->storename;
1374 if (!storename)
1375 storename = "MY";
1376 CAPI_trace(ctx, "Opening certificate store %s\n", storename);
1377
1378 hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
1379 ctx->store_flags, storename);
1380 if (!hstore) {
1381 CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
1382 capi_addlasterror();
1383 }
1384 return hstore;
1385}
1386
1387int capi_list_certs(CAPI_CTX * ctx, BIO *out, char *id)
1388{
1389 char *storename;
1390 int idx;
1391 int ret = 1;
1392 HCERTSTORE hstore;
1393 PCCERT_CONTEXT cert = NULL;
1394
1395 storename = ctx->storename;
1396 if (!storename)
1397 storename = "MY";
1398 CAPI_trace(ctx, "Listing certs for store %s\n", storename);
1399
1400 hstore = capi_open_store(ctx, storename);
1401 if (!hstore)
1402 return 0;
1403 if (id) {
1404 cert = capi_find_cert(ctx, id, hstore);
1405 if (!cert) {
1406 ret = 0;
1407 goto err;
1408 }
1409 capi_dump_cert(ctx, out, cert);
1410 CertFreeCertificateContext(cert);
1411 } else {
1412 for (idx = 0;; idx++) {
1413 cert = CertEnumCertificatesInStore(hstore, cert);
1414 if (!cert)
1415 break;
1416 BIO_printf(out, "Certificate %d\n", idx);
1417 capi_dump_cert(ctx, out, cert);
1418 }
1419 }
1420 err:
1421 CertCloseStore(hstore, 0);
1422 return ret;
1423}
1424
1425static PCCERT_CONTEXT capi_find_cert(CAPI_CTX * ctx, const char *id,
1426 HCERTSTORE hstore)
1427{
1428 PCCERT_CONTEXT cert = NULL;
1429 char *fname = NULL;
1430 int match;
1431 switch (ctx->lookup_method) {
1432 case CAPI_LU_SUBSTR:
1433 return CertFindCertificateInStore(hstore,
1434 X509_ASN_ENCODING, 0,
1435 CERT_FIND_SUBJECT_STR_A, id, NULL);
1436 case CAPI_LU_FNAME:
1437 for (;;) {
1438 cert = CertEnumCertificatesInStore(hstore, cert);
1439 if (!cert)
1440 return NULL;
1441 fname = capi_cert_get_fname(ctx, cert);
1442 if (fname) {
1443 if (strcmp(fname, id))
1444 match = 0;
1445 else
1446 match = 1;
1447 OPENSSL_free(fname);
1448 if (match)
1449 return cert;
1450 }
1451 }
1452 default:
1453 return NULL;
1454 }
1455}
1456
1457static CAPI_KEY *capi_get_key(CAPI_CTX * ctx, const TCHAR *contname,
1458 TCHAR *provname, DWORD ptype, DWORD keyspec)
1459{
0f113f3e 1460 DWORD dwFlags = 0;
b4faea50
RS		 1461 CAPI_KEY *key = OPENSSL_malloc(sizeof(*key));
1462
0f113f3e
MC		 1463 if (key == NULL)
1464 return NULL;
7b548d3f
DSH		 1465 /* If PROV_RSA_AES supported use it instead */
1466 if (ptype == PROV_RSA_FULL && use_aes_csp) {
1467 provname = NULL;
1468 ptype = PROV_RSA_AES;
1469 CAPI_trace(ctx, "capi_get_key, contname=%s, RSA_AES_CSP\n", contname);
1470 } else if (sizeof(TCHAR) == sizeof(char)) {
0f113f3e
MC		 1471 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1472 contname, provname, ptype);
7b548d3f 1473 } else if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) {
0f113f3e
MC		 1474 /* above 'if' is optimization to minimize malloc-ations */
1475 char *_contname = wide_to_asc((WCHAR *)contname);
1476 char *_provname = wide_to_asc((WCHAR *)provname);
1477
1478 CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
1479 _contname, _provname, ptype);
b548a1f1
RS		 1480 OPENSSL_free(_provname);
1481 OPENSSL_free(_contname);
0f113f3e
MC		 1482 }
1483 if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE)
1484 dwFlags = CRYPT_MACHINE_KEYSET;
1485 if (!CryptAcquireContext(&key->hprov, contname, provname, ptype, dwFlags)) {
1486 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1487 capi_addlasterror();
1488 goto err;
1489 }
1490 if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) {
1491 CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
1492 capi_addlasterror();
1493 CryptReleaseContext(key->hprov, 0);
1494 goto err;
1495 }
1496 key->keyspec = keyspec;
1497 key->pcert = NULL;
1498 return key;
1499
1500 err:
1501 OPENSSL_free(key);
1502 return NULL;
1503}
1504
1505static CAPI_KEY *capi_get_cert_key(CAPI_CTX * ctx, PCCERT_CONTEXT cert)
1506{
1507 CAPI_KEY *key = NULL;
1508 CRYPT_KEY_PROV_INFO *pinfo = NULL;
1509 char *provname = NULL, *contname = NULL;
1510 pinfo = capi_get_prov_info(ctx, cert);
1511 if (!pinfo)
1512 goto err;
1513 if (sizeof(TCHAR) != sizeof(char))
1514 key = capi_get_key(ctx, (TCHAR *)pinfo->pwszContainerName,
1515 (TCHAR *)pinfo->pwszProvName,
1516 pinfo->dwProvType, pinfo->dwKeySpec);
1517 else {
1518 provname = wide_to_asc(pinfo->pwszProvName);
1519 contname = wide_to_asc(pinfo->pwszContainerName);
1520 if (!provname || !contname)
1521 goto err;
1522 key = capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1523 pinfo->dwProvType, pinfo->dwKeySpec);
1524 }
1525
1526 err:
b548a1f1
RS		 1527 OPENSSL_free(pinfo);
1528 OPENSSL_free(provname);
1529 OPENSSL_free(contname);
0f113f3e
MC		 1530 return key;
1531}
1532
1533CAPI_KEY *capi_find_key(CAPI_CTX * ctx, const char *id)
1534{
1535 PCCERT_CONTEXT cert;
1536 HCERTSTORE hstore;
1537 CAPI_KEY *key = NULL;
1538 switch (ctx->lookup_method) {
1539 case CAPI_LU_SUBSTR:
1540 case CAPI_LU_FNAME:
1541 hstore = capi_open_store(ctx, NULL);
1542 if (!hstore)
1543 return NULL;
1544 cert = capi_find_cert(ctx, id, hstore);
1545 if (cert) {
1546 key = capi_get_cert_key(ctx, cert);
1547 CertFreeCertificateContext(cert);
1548 }
1549 CertCloseStore(hstore, 0);
1550 break;
1551
1552 case CAPI_LU_CONTNAME:
1553 if (sizeof(TCHAR) != sizeof(char)) {
1554 WCHAR *contname, *provname;
1555 DWORD len;
1556
1557 if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) &&
1558 (contname = alloca(len * sizeof(WCHAR)),
1559 MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) &&
1560 (len =
1561 MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, NULL, 0))
1562 && (provname =
1563 alloca(len * sizeof(WCHAR)), MultiByteToWideChar(CP_ACP,
1564 0,
1565 ctx->cspname,
1566 -1,
1567 provname,
1568 len)))
1569 key =
1570 capi_get_key(ctx, (TCHAR *)contname, (TCHAR *)provname,
1571 ctx->csptype, ctx->keytype);
1572 } else
1573 key = capi_get_key(ctx, (TCHAR *)id,
1574 (TCHAR *)ctx->cspname,
1575 ctx->csptype, ctx->keytype);
1576 break;
1577 }
1578
1579 return key;
1580}
1581
1582void capi_free_key(CAPI_KEY * key)
1583{
1584 if (!key)
1585 return;
1586 CryptDestroyKey(key->key);
1587 CryptReleaseContext(key->hprov, 0);
1588 if (key->pcert)
1589 CertFreeCertificateContext(key->pcert);
1590 OPENSSL_free(key);
1591}
7a18ecb2
DSH		 1592
1593/* Initialize a CAPI_CTX structure */
1594
57ebe748 1595static CAPI_CTX *capi_ctx_new(void)
0f113f3e 1596{
64b25758 1597 CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
b4faea50 1598
55646005 1599 if (ctx == NULL) {
0f113f3e
MC		 1600 CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
1601 return NULL;
1602 }
0f113f3e
MC		 1603 ctx->csptype = PROV_RSA_FULL;
1604 ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME;
1605 ctx->keytype = AT_KEYEXCHANGE;
0f113f3e
MC		 1606 ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
1607 CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER;
1608 ctx->lookup_method = CAPI_LU_SUBSTR;
0f113f3e
MC		 1609 ctx->client_cert_select = cert_select_simple;
1610 return ctx;
1611}
1612
1613static void capi_ctx_free(CAPI_CTX * ctx)
1614{
1615 CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
1616 if (!ctx)
1617 return;
b548a1f1
RS		 1618 OPENSSL_free(ctx->cspname);
1619 OPENSSL_free(ctx->debug_file);
1620 OPENSSL_free(ctx->storename);
1621 OPENSSL_free(ctx->ssl_client_store);
0f113f3e
MC		 1622 OPENSSL_free(ctx);
1623}
1624
1625static int capi_ctx_set_provname(CAPI_CTX * ctx, LPSTR pname, DWORD type,
1626 int check)
1627{
1628 CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
1629 if (check) {
1630 HCRYPTPROV hprov;
1631 LPTSTR name = NULL;
1632
1633 if (sizeof(TCHAR) != sizeof(char)) {
1634 DWORD len;
1635 if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) {
1636 name = alloca(len * sizeof(WCHAR));
1637 MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len);
1638 }
1639 } else
1640 name = (TCHAR *)pname;
1641
1642 if (!name || !CryptAcquireContext(&hprov, NULL, name, type,
1643 CRYPT_VERIFYCONTEXT)) {
1644 CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME,
1645 CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
1646 capi_addlasterror();
1647 return 0;
1648 }
1649 CryptReleaseContext(hprov, 0);
1650 }
b548a1f1 1651 OPENSSL_free(ctx->cspname);
7644a9ae 1652 ctx->cspname = OPENSSL_strdup(pname);
0f113f3e
MC		 1653 ctx->csptype = type;
1654 return 1;
1655}
1656
1657static int capi_ctx_set_provname_idx(CAPI_CTX * ctx, int idx)
1658{
1659 LPSTR pname;
1660 DWORD type;
1661 int res;
1662 if (capi_get_provname(ctx, &pname, &type, idx) != 1)
1663 return 0;
1664 res = capi_ctx_set_provname(ctx, pname, type, 0);
1665 OPENSSL_free(pname);
1666 return res;
1667}
7a18ecb2 1668
b3c8dd4e 1669static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
0f113f3e
MC		 1670{
1671 int i;
1672 X509_NAME *nm;
1673 /* Special case: empty list: match anything */
1674 if (sk_X509_NAME_num(ca_dn) <= 0)
1675 return 1;
1676 for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) {
1677 nm = sk_X509_NAME_value(ca_dn, i);
1678 if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
1679 return 1;
1680 }
1681 return 0;
1682}
7d537d4f 1683
b3c8dd4e 1684static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
0f113f3e
MC		 1685 STACK_OF(X509_NAME) *ca_dn, X509 **pcert,
1686 EVP_PKEY **pkey, STACK_OF(X509) **pother,
1687 UI_METHOD *ui_method,
1688 void *callback_data)
1689{
1690 STACK_OF(X509) *certs = NULL;
1691 X509 *x;
1692 char *storename;
57ebe748 1693 const unsigned char *p;
0f113f3e
MC		 1694 int i, client_cert_idx;
1695 HCERTSTORE hstore;
1696 PCCERT_CONTEXT cert = NULL, excert = NULL;
1697 CAPI_CTX *ctx;
1698 CAPI_KEY *key;
1699 ctx = ENGINE_get_ex_data(e, capi_idx);
1700
1701 *pcert = NULL;
1702 *pkey = NULL;
1703
1704 storename = ctx->ssl_client_store;
1705 if (!storename)
1706 storename = "MY";
1707
1708 hstore = capi_open_store(ctx, storename);
1709 if (!hstore)
1710 return 0;
1711 /* Enumerate all certificates collect any matches */
1712 for (i = 0;; i++) {
1713 cert = CertEnumCertificatesInStore(hstore, cert);
1714 if (!cert)
1715 break;
1716 p = cert->pbCertEncoded;
1717 x = d2i_X509(NULL, &p, cert->cbCertEncoded);
1718 if (!x) {
1719 CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
1720 continue;
1721 }
1722 if (cert_issuer_match(ca_dn, x)
1723 && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) {
1724 key = capi_get_cert_key(ctx, cert);
1725 if (!key) {
1726 X509_free(x);
1727 continue;
1728 }
1729 /*
1730 * Match found: attach extra data to it so we can retrieve the
1731 * key later.
1732 */
1733 excert = CertDuplicateCertificateContext(cert);
1734 key->pcert = excert;
1735 X509_set_ex_data(x, cert_capi_idx, key);
1736
1737 if (!certs)
1738 certs = sk_X509_new_null();
1739
1740 sk_X509_push(certs, x);
1741 } else
1742 X509_free(x);
1743
1744 }
1745
1746 if (cert)
1747 CertFreeCertificateContext(cert);
1748 if (hstore)
1749 CertCloseStore(hstore, 0);
1750
1751 if (!certs)
1752 return 0;
1753
1754 /* Select the appropriate certificate */
1755
1756 client_cert_idx = ctx->client_cert_select(e, ssl, certs);
1757
1758 /* Set the selected certificate and free the rest */
1759
1760 for (i = 0; i < sk_X509_num(certs); i++) {
1761 x = sk_X509_value(certs, i);
1762 if (i == client_cert_idx)
1763 *pcert = x;
1764 else {
1765 key = X509_get_ex_data(x, cert_capi_idx);
1766 capi_free_key(key);
1767 X509_free(x);
1768 }
1769 }
1770
1771 sk_X509_free(certs);
1772
1773 if (!*pcert)
1774 return 0;
1775
1776 /* Setup key for selected certificate */
1777
1778 key = X509_get_ex_data(*pcert, cert_capi_idx);
1779 *pkey = capi_get_pkey(e, key);
1780 X509_set_ex_data(*pcert, cert_capi_idx, NULL);
1781
1782 return 1;
1783
1784}
e0f7b872
DSH		 1785
1786/* Simple client cert selection function: always select first */
1787
1cd504e7 1788static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1789{
1790 return 0;
1791}
e0f7b872 1792
0f113f3e 1793# ifdef OPENSSL_CAPIENG_DIALOG
e0f7b872 1794
0f113f3e
MC		 1795/*
1796 * More complex cert selection function, using standard function
e0f7b872
DSH		 1797 * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
1798 */
1799
0f113f3e
MC		 1800/*
1801 * Definitions which are in cryptuiapi.h but this is not present in older
a0f3679b
DSH		 1802 * versions of headers.
1803 */
1804
0f113f3e
MC		 1805# ifndef CRYPTUI_SELECT_LOCATION_COLUMN
1806# define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
1807# define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
1808# endif
e0f7b872 1809
0f113f3e
MC		 1810# define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
1811# define dlg_prompt L"Select a certificate to use for authentication"
1812# define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
1813 |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
1381bf90 1814
1cd504e7 1815static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
0f113f3e
MC		 1816{
1817 X509 *x;
1818 HCERTSTORE dstore;
1819 PCCERT_CONTEXT cert;
1820 CAPI_CTX *ctx;
1821 CAPI_KEY *key;
1822 HWND hwnd;
1823 int i, idx = -1;
1824 if (sk_X509_num(certs) == 1)
1825 return 0;
1826 ctx = ENGINE_get_ex_data(e, capi_idx);
1827 /* Create an in memory store of certificates */
1828 dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
1829 CERT_STORE_CREATE_NEW_FLAG, NULL);
1830 if (!dstore) {
1831 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
1832 capi_addlasterror();
1833 goto err;
1834 }
1835 /* Add all certificates to store */
1836 for (i = 0; i < sk_X509_num(certs); i++) {
1837 x = sk_X509_value(certs, i);
1838 key = X509_get_ex_data(x, cert_capi_idx);
1839
1840 if (!CertAddCertificateContextToStore(dstore, key->pcert,
1841 CERT_STORE_ADD_NEW, NULL)) {
1842 CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
1843 capi_addlasterror();
1844 goto err;
1845 }
1846
1847 }
1848 hwnd = GetForegroundWindow();
1849 if (!hwnd)
1850 hwnd = GetActiveWindow();
1851 if (!hwnd && ctx->getconswindow)
1852 hwnd = ctx->getconswindow();
1853 /* Call dialog to select one */
1854 cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
1855 dlg_columns, 0, NULL);
1856
1857 /* Find matching cert from list */
1858 if (cert) {
1859 for (i = 0; i < sk_X509_num(certs); i++) {
1860 x = sk_X509_value(certs, i);
1861 key = X509_get_ex_data(x, cert_capi_idx);
1862 if (CertCompareCertificate
1863 (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo,
1864 key->pcert->pCertInfo)) {
1865 idx = i;
1866 break;
1867 }
1868 }
1869 }
1870
1871 err:
1872 if (dstore)
1873 CertCloseStore(dstore, 0);
1874 return idx;
1875
1876}
1877# endif
1878
1879#else /* !__COMPILE_CAPIENG */
1880# include <openssl/engine.h>
1881# ifndef OPENSSL_NO_DYNAMIC_ENGINE
492279f6 1882OPENSSL_EXPORT
0f113f3e 1883 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
eb164d0b 1884OPENSSL_EXPORT
0f113f3e
MC		 1885 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
1886{
1887 return 0;
1888}
1889
492279f6 1890IMPLEMENT_DYNAMIC_CHECK_FN()
0f113f3e 1891# else
b3599dbb
MC		 1892void engine_load_capi_int(void);
1893void engine_load_capi_int(void)
0f113f3e
MC		 1894{
1895}
1896# endif
7a18ecb2 1897#endif
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