lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2008-2018 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 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 |
| 8 | */ |
| 9 | |
| 10 | #ifdef _WIN32 |
| 11 | # ifndef _WIN32_WINNT |
| 12 | # define _WIN32_WINNT 0x0400 |
| 13 | # endif |
| 14 | # include <windows.h> |
| 15 | # include <wincrypt.h> |
| 16 | |
| 17 | # include <stdio.h> |
| 18 | # include <string.h> |
| 19 | # include <stdlib.h> |
| 20 | # include <malloc.h> |
| 21 | # ifndef alloca |
| 22 | # define alloca _alloca |
| 23 | # endif |
| 24 | |
| 25 | # include <openssl/crypto.h> |
| 26 | |
| 27 | # ifndef OPENSSL_NO_CAPIENG |
| 28 | |
| 29 | # include <openssl/buffer.h> |
| 30 | # include <openssl/bn.h> |
| 31 | # include <openssl/rsa.h> |
| 32 | # include <openssl/dsa.h> |
| 33 | |
| 34 | /* |
| 35 | * This module uses several "new" interfaces, among which is |
| 36 | * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is |
| 37 | * one of possible values you can pass to function in question. By |
| 38 | * checking if it's defined we can see if wincrypt.h and accompanying |
| 39 | * crypt32.lib are in shape. The native MingW32 headers up to and |
| 40 | * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the |
| 41 | * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG, |
| 42 | * so we check for these too and avoid compiling. |
| 43 | * Yes, it's rather "weak" test and if compilation fails, |
| 44 | * then re-configure with -DOPENSSL_NO_CAPIENG. |
| 45 | */ |
| 46 | # if defined(CERT_KEY_PROV_INFO_PROP_ID) && \ |
| 47 | defined(CERT_STORE_PROV_SYSTEM_A) && \ |
| 48 | defined(CERT_STORE_READONLY_FLAG) |
| 49 | # define __COMPILE_CAPIENG |
| 50 | # endif /* CERT_KEY_PROV_INFO_PROP_ID */ |
| 51 | # endif /* OPENSSL_NO_CAPIENG */ |
| 52 | #endif /* _WIN32 */ |
| 53 | |
| 54 | #ifdef __COMPILE_CAPIENG |
| 55 | |
| 56 | # undef X509_EXTENSIONS |
| 57 | |
| 58 | /* Definitions which may be missing from earlier version of headers */ |
| 59 | # ifndef CERT_STORE_OPEN_EXISTING_FLAG |
| 60 | # define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000 |
| 61 | # endif |
| 62 | |
| 63 | # ifndef CERT_STORE_CREATE_NEW_FLAG |
| 64 | # define CERT_STORE_CREATE_NEW_FLAG 0x00002000 |
| 65 | # endif |
| 66 | |
| 67 | # ifndef CERT_SYSTEM_STORE_CURRENT_USER |
| 68 | # define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000 |
| 69 | # endif |
| 70 | |
| 71 | # ifndef ALG_SID_SHA_256 |
| 72 | # define ALG_SID_SHA_256 12 |
| 73 | # endif |
| 74 | # ifndef ALG_SID_SHA_384 |
| 75 | # define ALG_SID_SHA_384 13 |
| 76 | # endif |
| 77 | # ifndef ALG_SID_SHA_512 |
| 78 | # define ALG_SID_SHA_512 14 |
| 79 | # endif |
| 80 | |
| 81 | # ifndef CALG_SHA_256 |
| 82 | # define CALG_SHA_256 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_256) |
| 83 | # endif |
| 84 | # ifndef CALG_SHA_384 |
| 85 | # define CALG_SHA_384 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_384) |
| 86 | # endif |
| 87 | # ifndef CALG_SHA_512 |
| 88 | # define CALG_SHA_512 (ALG_CLASS_HASH | ALG_TYPE_ANY | ALG_SID_SHA_512) |
| 89 | # endif |
| 90 | |
| 91 | # ifndef PROV_RSA_AES |
| 92 | # define PROV_RSA_AES 24 |
| 93 | # endif |
| 94 | |
| 95 | # include <openssl/engine.h> |
| 96 | # include <openssl/pem.h> |
| 97 | # include <openssl/x509v3.h> |
| 98 | |
| 99 | # include "e_capi_err.h" |
| 100 | # include "e_capi_err.c" |
| 101 | |
| 102 | static const char *engine_capi_id = "capi"; |
| 103 | static const char *engine_capi_name = "CryptoAPI ENGINE"; |
| 104 | |
| 105 | typedef struct CAPI_CTX_st CAPI_CTX; |
| 106 | typedef struct CAPI_KEY_st CAPI_KEY; |
| 107 | |
| 108 | static void capi_addlasterror(void); |
| 109 | static void capi_adderror(DWORD err); |
| 110 | |
| 111 | static void CAPI_trace(CAPI_CTX *ctx, char *format, ...); |
| 112 | |
| 113 | static int capi_list_providers(CAPI_CTX *ctx, BIO *out); |
| 114 | static int capi_list_containers(CAPI_CTX *ctx, BIO *out); |
| 115 | int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename); |
| 116 | void capi_free_key(CAPI_KEY *key); |
| 117 | |
| 118 | static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, |
| 119 | HCERTSTORE hstore); |
| 120 | |
| 121 | CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id); |
| 122 | |
| 123 | static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id, |
| 124 | UI_METHOD *ui_method, void *callback_data); |
| 125 | static int capi_rsa_sign(int dtype, const unsigned char *m, |
| 126 | unsigned int m_len, unsigned char *sigret, |
| 127 | unsigned int *siglen, const RSA *rsa); |
| 128 | static int capi_rsa_priv_enc(int flen, const unsigned char *from, |
| 129 | unsigned char *to, RSA *rsa, int padding); |
| 130 | static int capi_rsa_priv_dec(int flen, const unsigned char *from, |
| 131 | unsigned char *to, RSA *rsa, int padding); |
| 132 | static int capi_rsa_free(RSA *rsa); |
| 133 | |
| 134 | # ifndef OPENSSL_NO_DSA |
| 135 | static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen, |
| 136 | DSA *dsa); |
| 137 | static int capi_dsa_free(DSA *dsa); |
| 138 | # endif |
| 139 | |
| 140 | static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl, |
| 141 | STACK_OF(X509_NAME) *ca_dn, X509 **pcert, |
| 142 | EVP_PKEY **pkey, STACK_OF(X509) **pother, |
| 143 | UI_METHOD *ui_method, |
| 144 | void *callback_data); |
| 145 | |
| 146 | static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); |
| 147 | # ifdef OPENSSL_CAPIENG_DIALOG |
| 148 | static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); |
| 149 | # endif |
| 150 | |
| 151 | void engine_load_capi_int(void); |
| 152 | |
| 153 | typedef PCCERT_CONTEXT(WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR, |
| 154 | LPCWSTR, DWORD, DWORD, void *); |
| 155 | typedef HWND(WINAPI *GETCONSWIN)(void); |
| 156 | |
| 157 | /* |
| 158 | * This structure contains CAPI ENGINE specific data: it contains various |
| 159 | * global options and affects how other functions behave. |
| 160 | */ |
| 161 | |
| 162 | # define CAPI_DBG_TRACE 2 |
| 163 | # define CAPI_DBG_ERROR 1 |
| 164 | |
| 165 | struct CAPI_CTX_st { |
| 166 | int debug_level; |
| 167 | char *debug_file; |
| 168 | /* Parameters to use for container lookup */ |
| 169 | DWORD keytype; |
| 170 | LPSTR cspname; |
| 171 | DWORD csptype; |
| 172 | /* Certificate store name to use */ |
| 173 | LPSTR storename; |
| 174 | LPSTR ssl_client_store; |
| 175 | /* System store flags */ |
| 176 | DWORD store_flags; |
| 177 | /* Lookup string meanings in load_private_key */ |
| 178 | # define CAPI_LU_SUBSTR 1 /* Substring of subject: uses "storename" */ |
| 179 | # define CAPI_LU_FNAME 2 /* Friendly name: uses storename */ |
| 180 | # define CAPI_LU_CONTNAME 3 /* Container name: uses cspname, keytype */ |
| 181 | int lookup_method; |
| 182 | /* Info to dump with dumpcerts option */ |
| 183 | # define CAPI_DMP_SUMMARY 0x1 /* Issuer and serial name strings */ |
| 184 | # define CAPI_DMP_FNAME 0x2 /* Friendly name */ |
| 185 | # define CAPI_DMP_FULL 0x4 /* Full X509_print dump */ |
| 186 | # define CAPI_DMP_PEM 0x8 /* Dump PEM format certificate */ |
| 187 | # define CAPI_DMP_PSKEY 0x10 /* Dump pseudo key (if possible) */ |
| 188 | # define CAPI_DMP_PKEYINFO 0x20 /* Dump key info (if possible) */ |
| 189 | DWORD dump_flags; |
| 190 | int (*client_cert_select) (ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); |
| 191 | CERTDLG certselectdlg; |
| 192 | GETCONSWIN getconswindow; |
| 193 | }; |
| 194 | |
| 195 | static CAPI_CTX *capi_ctx_new(void); |
| 196 | static void capi_ctx_free(CAPI_CTX *ctx); |
| 197 | static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, |
| 198 | int check); |
| 199 | static 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) |
| 215 | |
| 216 | static const ENGINE_CMD_DEFN capi_cmd_defns[] = { |
| 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 | }; |
| 277 | |
| 278 | static int capi_idx = -1; |
| 279 | static int rsa_capi_idx = -1; |
| 280 | static int dsa_capi_idx = -1; |
| 281 | static int cert_capi_idx = -1; |
| 282 | |
| 283 | static 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 | LPSTR tmpstr; |
| 289 | if (capi_idx == -1) { |
| 290 | CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED); |
| 291 | return 0; |
| 292 | } |
| 293 | ctx = ENGINE_get_ex_data(e, capi_idx); |
| 294 | out = BIO_new_fp(stdout, BIO_NOCLOSE); |
| 295 | if (out == NULL) { |
| 296 | CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_FILE_OPEN_ERROR); |
| 297 | return 0; |
| 298 | } |
| 299 | switch (cmd) { |
| 300 | case CAPI_CMD_LIST_CSPS: |
| 301 | ret = capi_list_providers(ctx, out); |
| 302 | break; |
| 303 | |
| 304 | case CAPI_CMD_LIST_CERTS: |
| 305 | ret = capi_list_certs(ctx, out, NULL); |
| 306 | break; |
| 307 | |
| 308 | case CAPI_CMD_LOOKUP_CERT: |
| 309 | ret = capi_list_certs(ctx, out, p); |
| 310 | break; |
| 311 | |
| 312 | case CAPI_CMD_LIST_CONTAINERS: |
| 313 | ret = capi_list_containers(ctx, out); |
| 314 | break; |
| 315 | |
| 316 | case CAPI_CMD_STORE_NAME: |
| 317 | tmpstr = OPENSSL_strdup(p); |
| 318 | if (tmpstr != NULL) { |
| 319 | OPENSSL_free(ctx->storename); |
| 320 | ctx->storename = tmpstr; |
| 321 | CAPI_trace(ctx, "Setting store name to %s\n", p); |
| 322 | } else { |
| 323 | CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE); |
| 324 | ret = 0; |
| 325 | } |
| 326 | break; |
| 327 | |
| 328 | case CAPI_CMD_STORE_FLAGS: |
| 329 | if (i & 1) { |
| 330 | ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE; |
| 331 | ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER; |
| 332 | } else { |
| 333 | ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER; |
| 334 | ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE; |
| 335 | } |
| 336 | CAPI_trace(ctx, "Setting flags to %d\n", i); |
| 337 | break; |
| 338 | |
| 339 | case CAPI_CMD_DEBUG_LEVEL: |
| 340 | ctx->debug_level = (int)i; |
| 341 | CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level); |
| 342 | break; |
| 343 | |
| 344 | case CAPI_CMD_DEBUG_FILE: |
| 345 | tmpstr = OPENSSL_strdup(p); |
| 346 | if (tmpstr != NULL) { |
| 347 | ctx->debug_file = tmpstr; |
| 348 | CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file); |
| 349 | } else { |
| 350 | CAPIerr(CAPI_F_CAPI_CTRL, ERR_R_MALLOC_FAILURE); |
| 351 | ret = 0; |
| 352 | } |
| 353 | break; |
| 354 | |
| 355 | case CAPI_CMD_KEYTYPE: |
| 356 | ctx->keytype = i; |
| 357 | CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype); |
| 358 | break; |
| 359 | |
| 360 | case CAPI_CMD_SET_CSP_IDX: |
| 361 | ret = capi_ctx_set_provname_idx(ctx, i); |
| 362 | break; |
| 363 | |
| 364 | case CAPI_CMD_LIST_OPTIONS: |
| 365 | ctx->dump_flags = i; |
| 366 | break; |
| 367 | |
| 368 | case CAPI_CMD_LOOKUP_METHOD: |
| 369 | if (i < 1 || i > 3) { |
| 370 | CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD); |
| 371 | BIO_free(out); |
| 372 | return 0; |
| 373 | } |
| 374 | ctx->lookup_method = i; |
| 375 | break; |
| 376 | |
| 377 | case CAPI_CMD_SET_CSP_NAME: |
| 378 | ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1); |
| 379 | break; |
| 380 | |
| 381 | case CAPI_CMD_SET_CSP_TYPE: |
| 382 | ctx->csptype = i; |
| 383 | break; |
| 384 | |
| 385 | default: |
| 386 | CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND); |
| 387 | ret = 0; |
| 388 | } |
| 389 | |
| 390 | BIO_free(out); |
| 391 | return ret; |
| 392 | |
| 393 | } |
| 394 | |
| 395 | static RSA_METHOD *capi_rsa_method = NULL; |
| 396 | # ifndef OPENSSL_NO_DSA |
| 397 | static DSA_METHOD *capi_dsa_method = NULL; |
| 398 | # endif |
| 399 | |
| 400 | static int use_aes_csp = 0; |
| 401 | static const WCHAR rsa_aes_cspname[] = |
| 402 | L"Microsoft Enhanced RSA and AES Cryptographic Provider"; |
| 403 | static const WCHAR rsa_enh_cspname[] = |
| 404 | L"Microsoft Enhanced Cryptographic Provider v1.0"; |
| 405 | |
| 406 | static int capi_init(ENGINE *e) |
| 407 | { |
| 408 | CAPI_CTX *ctx; |
| 409 | const RSA_METHOD *ossl_rsa_meth; |
| 410 | # ifndef OPENSSL_NO_DSA |
| 411 | const DSA_METHOD *ossl_dsa_meth; |
| 412 | # endif |
| 413 | HCRYPTPROV hprov; |
| 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_OpenSSL(); |
| 425 | if ( !RSA_meth_set_pub_enc(capi_rsa_method, |
| 426 | RSA_meth_get_pub_enc(ossl_rsa_meth)) |
| 427 | || !RSA_meth_set_pub_dec(capi_rsa_method, |
| 428 | RSA_meth_get_pub_dec(ossl_rsa_meth)) |
| 429 | || !RSA_meth_set_priv_enc(capi_rsa_method, capi_rsa_priv_enc) |
| 430 | || !RSA_meth_set_priv_dec(capi_rsa_method, capi_rsa_priv_dec) |
| 431 | || !RSA_meth_set_mod_exp(capi_rsa_method, |
| 432 | RSA_meth_get_mod_exp(ossl_rsa_meth)) |
| 433 | || !RSA_meth_set_bn_mod_exp(capi_rsa_method, |
| 434 | RSA_meth_get_bn_mod_exp(ossl_rsa_meth)) |
| 435 | || !RSA_meth_set_finish(capi_rsa_method, capi_rsa_free) |
| 436 | || !RSA_meth_set_sign(capi_rsa_method, capi_rsa_sign)) { |
| 437 | goto memerr; |
| 438 | } |
| 439 | |
| 440 | # ifndef OPENSSL_NO_DSA |
| 441 | /* Setup DSA Method */ |
| 442 | dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0); |
| 443 | ossl_dsa_meth = DSA_OpenSSL(); |
| 444 | if ( !DSA_meth_set_sign(capi_dsa_method, capi_dsa_do_sign) |
| 445 | || !DSA_meth_set_verify(capi_dsa_method, |
| 446 | DSA_meth_get_verify(ossl_dsa_meth)) |
| 447 | || !DSA_meth_set_finish(capi_dsa_method, capi_dsa_free) |
| 448 | || !DSA_meth_set_mod_exp(capi_dsa_method, |
| 449 | DSA_meth_get_mod_exp(ossl_dsa_meth)) |
| 450 | || !DSA_meth_set_bn_mod_exp(capi_dsa_method, |
| 451 | DSA_meth_get_bn_mod_exp(ossl_dsa_meth))) { |
| 452 | goto memerr; |
| 453 | } |
| 454 | # endif |
| 455 | } |
| 456 | |
| 457 | ctx = capi_ctx_new(); |
| 458 | if (ctx == NULL) |
| 459 | goto memerr; |
| 460 | |
| 461 | ENGINE_set_ex_data(e, capi_idx, ctx); |
| 462 | |
| 463 | # ifdef OPENSSL_CAPIENG_DIALOG |
| 464 | { |
| 465 | HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL")); |
| 466 | HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL")); |
| 467 | if (cryptui) |
| 468 | ctx->certselectdlg = |
| 469 | (CERTDLG) GetProcAddress(cryptui, |
| 470 | "CryptUIDlgSelectCertificateFromStore"); |
| 471 | if (kernel) |
| 472 | ctx->getconswindow = |
| 473 | (GETCONSWIN) GetProcAddress(kernel, "GetConsoleWindow"); |
| 474 | if (cryptui && !OPENSSL_isservice()) |
| 475 | ctx->client_cert_select = cert_select_dialog; |
| 476 | } |
| 477 | # endif |
| 478 | |
| 479 | /* See if there is RSA+AES CSP */ |
| 480 | if (CryptAcquireContextW(&hprov, NULL, rsa_aes_cspname, PROV_RSA_AES, |
| 481 | CRYPT_VERIFYCONTEXT)) { |
| 482 | use_aes_csp = 1; |
| 483 | CryptReleaseContext(hprov, 0); |
| 484 | } |
| 485 | |
| 486 | return 1; |
| 487 | |
| 488 | memerr: |
| 489 | CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE); |
| 490 | return 0; |
| 491 | |
| 492 | return 1; |
| 493 | } |
| 494 | |
| 495 | static int capi_destroy(ENGINE *e) |
| 496 | { |
| 497 | RSA_meth_free(capi_rsa_method); |
| 498 | capi_rsa_method = NULL; |
| 499 | # ifndef OPENSSL_NO_DSA |
| 500 | DSA_meth_free(capi_dsa_method); |
| 501 | capi_dsa_method = NULL; |
| 502 | # endif |
| 503 | ERR_unload_CAPI_strings(); |
| 504 | return 1; |
| 505 | } |
| 506 | |
| 507 | static int capi_finish(ENGINE *e) |
| 508 | { |
| 509 | CAPI_CTX *ctx; |
| 510 | ctx = ENGINE_get_ex_data(e, capi_idx); |
| 511 | capi_ctx_free(ctx); |
| 512 | ENGINE_set_ex_data(e, capi_idx, NULL); |
| 513 | return 1; |
| 514 | } |
| 515 | |
| 516 | /* |
| 517 | * CryptoAPI key application data. This contains a handle to the private key |
| 518 | * container (for sign operations) and a handle to the key (for decrypt |
| 519 | * operations). |
| 520 | */ |
| 521 | |
| 522 | struct CAPI_KEY_st { |
| 523 | /* Associated certificate context (if any) */ |
| 524 | PCCERT_CONTEXT pcert; |
| 525 | HCRYPTPROV hprov; |
| 526 | HCRYPTKEY key; |
| 527 | DWORD keyspec; |
| 528 | }; |
| 529 | |
| 530 | static int bind_capi(ENGINE *e) |
| 531 | { |
| 532 | capi_rsa_method = RSA_meth_new("CryptoAPI RSA method", 0); |
| 533 | if (capi_rsa_method == NULL) |
| 534 | return 0; |
| 535 | # ifndef OPENSSL_NO_DSA |
| 536 | capi_dsa_method = DSA_meth_new("CryptoAPI DSA method", 0); |
| 537 | if (capi_dsa_method == NULL) |
| 538 | goto memerr; |
| 539 | # endif |
| 540 | if (!ENGINE_set_id(e, engine_capi_id) |
| 541 | || !ENGINE_set_name(e, engine_capi_name) |
| 542 | || !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL) |
| 543 | || !ENGINE_set_init_function(e, capi_init) |
| 544 | || !ENGINE_set_finish_function(e, capi_finish) |
| 545 | || !ENGINE_set_destroy_function(e, capi_destroy) |
| 546 | || !ENGINE_set_RSA(e, capi_rsa_method) |
| 547 | # ifndef OPENSSL_NO_DSA |
| 548 | || !ENGINE_set_DSA(e, capi_dsa_method) |
| 549 | # endif |
| 550 | || !ENGINE_set_load_privkey_function(e, capi_load_privkey) |
| 551 | || !ENGINE_set_load_ssl_client_cert_function(e, |
| 552 | capi_load_ssl_client_cert) |
| 553 | || !ENGINE_set_cmd_defns(e, capi_cmd_defns) |
| 554 | || !ENGINE_set_ctrl_function(e, capi_ctrl)) |
| 555 | goto memerr; |
| 556 | ERR_load_CAPI_strings(); |
| 557 | |
| 558 | return 1; |
| 559 | memerr: |
| 560 | RSA_meth_free(capi_rsa_method); |
| 561 | capi_rsa_method = NULL; |
| 562 | # ifndef OPENSSL_NO_DSA |
| 563 | DSA_meth_free(capi_dsa_method); |
| 564 | capi_dsa_method = NULL; |
| 565 | # endif |
| 566 | return 0; |
| 567 | } |
| 568 | |
| 569 | # ifndef OPENSSL_NO_DYNAMIC_ENGINE |
| 570 | static int bind_helper(ENGINE *e, const char *id) |
| 571 | { |
| 572 | if (id && (strcmp(id, engine_capi_id) != 0)) |
| 573 | return 0; |
| 574 | if (!bind_capi(e)) |
| 575 | return 0; |
| 576 | return 1; |
| 577 | } |
| 578 | |
| 579 | IMPLEMENT_DYNAMIC_CHECK_FN() |
| 580 | IMPLEMENT_DYNAMIC_BIND_FN(bind_helper) |
| 581 | # else |
| 582 | static ENGINE *engine_capi(void) |
| 583 | { |
| 584 | ENGINE *ret = ENGINE_new(); |
| 585 | if (ret == NULL) |
| 586 | return NULL; |
| 587 | if (!bind_capi(ret)) { |
| 588 | ENGINE_free(ret); |
| 589 | return NULL; |
| 590 | } |
| 591 | return ret; |
| 592 | } |
| 593 | |
| 594 | void engine_load_capi_int(void) |
| 595 | { |
| 596 | /* Copied from eng_[openssl|dyn].c */ |
| 597 | ENGINE *toadd = engine_capi(); |
| 598 | if (!toadd) |
| 599 | return; |
| 600 | ENGINE_add(toadd); |
| 601 | ENGINE_free(toadd); |
| 602 | ERR_clear_error(); |
| 603 | } |
| 604 | # endif |
| 605 | |
| 606 | static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen) |
| 607 | { |
| 608 | int i; |
| 609 | /* |
| 610 | * Reverse buffer in place: since this is a keyblob structure that will |
| 611 | * be freed up after conversion anyway it doesn't matter if we change |
| 612 | * it. |
| 613 | */ |
| 614 | for (i = 0; i < binlen / 2; i++) { |
| 615 | unsigned char c; |
| 616 | c = bin[i]; |
| 617 | bin[i] = bin[binlen - i - 1]; |
| 618 | bin[binlen - i - 1] = c; |
| 619 | } |
| 620 | |
| 621 | if (!BN_bin2bn(bin, binlen, bn)) |
| 622 | return 0; |
| 623 | return 1; |
| 624 | } |
| 625 | |
| 626 | /* Given a CAPI_KEY get an EVP_PKEY structure */ |
| 627 | |
| 628 | static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key) |
| 629 | { |
| 630 | unsigned char *pubkey = NULL; |
| 631 | DWORD len; |
| 632 | BLOBHEADER *bh; |
| 633 | RSA *rkey = NULL; |
| 634 | DSA *dkey = NULL; |
| 635 | EVP_PKEY *ret = NULL; |
| 636 | if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) { |
| 637 | CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR); |
| 638 | capi_addlasterror(); |
| 639 | return NULL; |
| 640 | } |
| 641 | |
| 642 | pubkey = OPENSSL_malloc(len); |
| 643 | |
| 644 | if (pubkey == NULL) |
| 645 | goto memerr; |
| 646 | |
| 647 | if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) { |
| 648 | CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR); |
| 649 | capi_addlasterror(); |
| 650 | goto err; |
| 651 | } |
| 652 | |
| 653 | bh = (BLOBHEADER *) pubkey; |
| 654 | if (bh->bType != PUBLICKEYBLOB) { |
| 655 | CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB); |
| 656 | goto err; |
| 657 | } |
| 658 | if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) { |
| 659 | RSAPUBKEY *rp; |
| 660 | DWORD rsa_modlen; |
| 661 | BIGNUM *e = NULL, *n = NULL; |
| 662 | unsigned char *rsa_modulus; |
| 663 | rp = (RSAPUBKEY *) (bh + 1); |
| 664 | if (rp->magic != 0x31415352) { |
| 665 | char magstr[10]; |
| 666 | BIO_snprintf(magstr, 10, "%lx", rp->magic); |
| 667 | CAPIerr(CAPI_F_CAPI_GET_PKEY, |
| 668 | CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER); |
| 669 | ERR_add_error_data(2, "magic=0x", magstr); |
| 670 | goto err; |
| 671 | } |
| 672 | rsa_modulus = (unsigned char *)(rp + 1); |
| 673 | rkey = RSA_new_method(eng); |
| 674 | if (!rkey) |
| 675 | goto memerr; |
| 676 | |
| 677 | e = BN_new(); |
| 678 | n = BN_new(); |
| 679 | |
| 680 | if (e == NULL || n == NULL) { |
| 681 | BN_free(e); |
| 682 | BN_free(n); |
| 683 | goto memerr; |
| 684 | } |
| 685 | |
| 686 | RSA_set0_key(rkey, n, e, NULL); |
| 687 | |
| 688 | if (!BN_set_word(e, rp->pubexp)) |
| 689 | goto memerr; |
| 690 | |
| 691 | rsa_modlen = rp->bitlen / 8; |
| 692 | if (!lend_tobn(n, rsa_modulus, rsa_modlen)) |
| 693 | goto memerr; |
| 694 | |
| 695 | RSA_set_ex_data(rkey, rsa_capi_idx, key); |
| 696 | |
| 697 | if ((ret = EVP_PKEY_new()) == NULL) |
| 698 | goto memerr; |
| 699 | |
| 700 | EVP_PKEY_assign_RSA(ret, rkey); |
| 701 | rkey = NULL; |
| 702 | |
| 703 | # ifndef OPENSSL_NO_DSA |
| 704 | } else if (bh->aiKeyAlg == CALG_DSS_SIGN) { |
| 705 | DSSPUBKEY *dp; |
| 706 | DWORD dsa_plen; |
| 707 | unsigned char *btmp; |
| 708 | BIGNUM *p, *q, *g, *pub_key; |
| 709 | dp = (DSSPUBKEY *) (bh + 1); |
| 710 | if (dp->magic != 0x31535344) { |
| 711 | char magstr[10]; |
| 712 | BIO_snprintf(magstr, 10, "%lx", dp->magic); |
| 713 | CAPIerr(CAPI_F_CAPI_GET_PKEY, |
| 714 | CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER); |
| 715 | ERR_add_error_data(2, "magic=0x", magstr); |
| 716 | goto err; |
| 717 | } |
| 718 | dsa_plen = dp->bitlen / 8; |
| 719 | btmp = (unsigned char *)(dp + 1); |
| 720 | dkey = DSA_new_method(eng); |
| 721 | if (!dkey) |
| 722 | goto memerr; |
| 723 | p = BN_new(); |
| 724 | q = BN_new(); |
| 725 | g = BN_new(); |
| 726 | pub_key = BN_new(); |
| 727 | if (p == NULL || q == NULL || g == NULL || pub_key == NULL) { |
| 728 | BN_free(p); |
| 729 | BN_free(q); |
| 730 | BN_free(g); |
| 731 | BN_free(pub_key); |
| 732 | goto memerr; |
| 733 | } |
| 734 | DSA_set0_pqg(dkey, p, q, g); |
| 735 | DSA_set0_key(dkey, pub_key, NULL); |
| 736 | if (!lend_tobn(p, btmp, dsa_plen)) |
| 737 | goto memerr; |
| 738 | btmp += dsa_plen; |
| 739 | if (!lend_tobn(q, btmp, 20)) |
| 740 | goto memerr; |
| 741 | btmp += 20; |
| 742 | if (!lend_tobn(g, btmp, dsa_plen)) |
| 743 | goto memerr; |
| 744 | btmp += dsa_plen; |
| 745 | if (!lend_tobn(pub_key, btmp, dsa_plen)) |
| 746 | goto memerr; |
| 747 | btmp += dsa_plen; |
| 748 | |
| 749 | DSA_set_ex_data(dkey, dsa_capi_idx, key); |
| 750 | |
| 751 | if ((ret = EVP_PKEY_new()) == NULL) |
| 752 | goto memerr; |
| 753 | |
| 754 | EVP_PKEY_assign_DSA(ret, dkey); |
| 755 | dkey = NULL; |
| 756 | # endif |
| 757 | } else { |
| 758 | char algstr[10]; |
| 759 | BIO_snprintf(algstr, 10, "%ux", bh->aiKeyAlg); |
| 760 | CAPIerr(CAPI_F_CAPI_GET_PKEY, |
| 761 | CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM); |
| 762 | ERR_add_error_data(2, "aiKeyAlg=0x", algstr); |
| 763 | goto err; |
| 764 | } |
| 765 | |
| 766 | err: |
| 767 | OPENSSL_free(pubkey); |
| 768 | if (!ret) { |
| 769 | RSA_free(rkey); |
| 770 | # ifndef OPENSSL_NO_DSA |
| 771 | DSA_free(dkey); |
| 772 | # endif |
| 773 | } |
| 774 | |
| 775 | return ret; |
| 776 | |
| 777 | memerr: |
| 778 | CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE); |
| 779 | goto err; |
| 780 | |
| 781 | } |
| 782 | |
| 783 | static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id, |
| 784 | UI_METHOD *ui_method, void *callback_data) |
| 785 | { |
| 786 | CAPI_CTX *ctx; |
| 787 | CAPI_KEY *key; |
| 788 | EVP_PKEY *ret; |
| 789 | ctx = ENGINE_get_ex_data(eng, capi_idx); |
| 790 | |
| 791 | if (!ctx) { |
| 792 | CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT); |
| 793 | return NULL; |
| 794 | } |
| 795 | |
| 796 | key = capi_find_key(ctx, key_id); |
| 797 | |
| 798 | if (!key) |
| 799 | return NULL; |
| 800 | |
| 801 | ret = capi_get_pkey(eng, key); |
| 802 | |
| 803 | if (!ret) |
| 804 | capi_free_key(key); |
| 805 | return ret; |
| 806 | |
| 807 | } |
| 808 | |
| 809 | /* CryptoAPI RSA operations */ |
| 810 | |
| 811 | int capi_rsa_priv_enc(int flen, const unsigned char *from, |
| 812 | unsigned char *to, RSA *rsa, int padding) |
| 813 | { |
| 814 | CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED); |
| 815 | return -1; |
| 816 | } |
| 817 | |
| 818 | int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len, |
| 819 | unsigned char *sigret, unsigned int *siglen, const RSA *rsa) |
| 820 | { |
| 821 | ALG_ID alg; |
| 822 | HCRYPTHASH hash; |
| 823 | DWORD slen; |
| 824 | unsigned int i; |
| 825 | int ret = -1; |
| 826 | CAPI_KEY *capi_key; |
| 827 | CAPI_CTX *ctx; |
| 828 | |
| 829 | ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx); |
| 830 | |
| 831 | CAPI_trace(ctx, "Called CAPI_rsa_sign()\n"); |
| 832 | |
| 833 | capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); |
| 834 | if (!capi_key) { |
| 835 | CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY); |
| 836 | return -1; |
| 837 | } |
| 838 | /* Convert the signature type to a CryptoAPI algorithm ID */ |
| 839 | switch (dtype) { |
| 840 | case NID_sha256: |
| 841 | alg = CALG_SHA_256; |
| 842 | break; |
| 843 | |
| 844 | case NID_sha384: |
| 845 | alg = CALG_SHA_384; |
| 846 | break; |
| 847 | |
| 848 | case NID_sha512: |
| 849 | alg = CALG_SHA_512; |
| 850 | break; |
| 851 | |
| 852 | case NID_sha1: |
| 853 | alg = CALG_SHA1; |
| 854 | break; |
| 855 | |
| 856 | case NID_md5: |
| 857 | alg = CALG_MD5; |
| 858 | break; |
| 859 | |
| 860 | case NID_md5_sha1: |
| 861 | alg = CALG_SSL3_SHAMD5; |
| 862 | break; |
| 863 | default: |
| 864 | { |
| 865 | char algstr[10]; |
| 866 | BIO_snprintf(algstr, 10, "%x", dtype); |
| 867 | CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID); |
| 868 | ERR_add_error_data(2, "NID=0x", algstr); |
| 869 | return -1; |
| 870 | } |
| 871 | } |
| 872 | |
| 873 | /* Create the hash object */ |
| 874 | if (!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) { |
| 875 | CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT); |
| 876 | capi_addlasterror(); |
| 877 | return -1; |
| 878 | } |
| 879 | /* Set the hash value to the value passed */ |
| 880 | |
| 881 | if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) { |
| 882 | CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE); |
| 883 | capi_addlasterror(); |
| 884 | goto err; |
| 885 | } |
| 886 | |
| 887 | /* Finally sign it */ |
| 888 | slen = RSA_size(rsa); |
| 889 | if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) { |
| 890 | CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH); |
| 891 | capi_addlasterror(); |
| 892 | goto err; |
| 893 | } else { |
| 894 | ret = 1; |
| 895 | /* Inplace byte reversal of signature */ |
| 896 | for (i = 0; i < slen / 2; i++) { |
| 897 | unsigned char c; |
| 898 | c = sigret[i]; |
| 899 | sigret[i] = sigret[slen - i - 1]; |
| 900 | sigret[slen - i - 1] = c; |
| 901 | } |
| 902 | *siglen = slen; |
| 903 | } |
| 904 | |
| 905 | /* Now cleanup */ |
| 906 | |
| 907 | err: |
| 908 | CryptDestroyHash(hash); |
| 909 | |
| 910 | return ret; |
| 911 | } |
| 912 | |
| 913 | int capi_rsa_priv_dec(int flen, const unsigned char *from, |
| 914 | unsigned char *to, RSA *rsa, int padding) |
| 915 | { |
| 916 | int i; |
| 917 | unsigned char *tmpbuf; |
| 918 | CAPI_KEY *capi_key; |
| 919 | CAPI_CTX *ctx; |
| 920 | DWORD flags = 0; |
| 921 | DWORD dlen; |
| 922 | |
| 923 | if (flen <= 0) |
| 924 | return flen; |
| 925 | |
| 926 | ctx = ENGINE_get_ex_data(RSA_get0_engine(rsa), capi_idx); |
| 927 | |
| 928 | CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n"); |
| 929 | |
| 930 | capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); |
| 931 | if (!capi_key) { |
| 932 | CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY); |
| 933 | return -1; |
| 934 | } |
| 935 | |
| 936 | switch (padding) { |
| 937 | case RSA_PKCS1_PADDING: |
| 938 | /* Nothing to do */ |
| 939 | break; |
| 940 | #ifdef CRYPT_DECRYPT_RSA_NO_PADDING_CHECK |
| 941 | case RSA_NO_PADDING: |
| 942 | flags = CRYPT_DECRYPT_RSA_NO_PADDING_CHECK; |
| 943 | break; |
| 944 | #endif |
| 945 | default: |
| 946 | { |
| 947 | char errstr[10]; |
| 948 | BIO_snprintf(errstr, 10, "%d", padding); |
| 949 | CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING); |
| 950 | ERR_add_error_data(2, "padding=", errstr); |
| 951 | return -1; |
| 952 | } |
| 953 | } |
| 954 | |
| 955 | /* Create temp reverse order version of input */ |
| 956 | if ((tmpbuf = OPENSSL_malloc(flen)) == NULL) { |
| 957 | CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE); |
| 958 | return -1; |
| 959 | } |
| 960 | for (i = 0; i < flen; i++) |
| 961 | tmpbuf[flen - i - 1] = from[i]; |
| 962 | |
| 963 | /* Finally decrypt it */ |
| 964 | dlen = flen; |
| 965 | if (!CryptDecrypt(capi_key->key, 0, TRUE, flags, tmpbuf, &dlen)) { |
| 966 | CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR); |
| 967 | capi_addlasterror(); |
| 968 | OPENSSL_cleanse(tmpbuf, dlen); |
| 969 | OPENSSL_free(tmpbuf); |
| 970 | return -1; |
| 971 | } else { |
| 972 | memcpy(to, tmpbuf, (flen = (int)dlen)); |
| 973 | } |
| 974 | OPENSSL_cleanse(tmpbuf, flen); |
| 975 | OPENSSL_free(tmpbuf); |
| 976 | |
| 977 | return flen; |
| 978 | } |
| 979 | |
| 980 | static int capi_rsa_free(RSA *rsa) |
| 981 | { |
| 982 | CAPI_KEY *capi_key; |
| 983 | capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); |
| 984 | capi_free_key(capi_key); |
| 985 | RSA_set_ex_data(rsa, rsa_capi_idx, 0); |
| 986 | return 1; |
| 987 | } |
| 988 | |
| 989 | # ifndef OPENSSL_NO_DSA |
| 990 | /* CryptoAPI DSA operations */ |
| 991 | |
| 992 | static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen, |
| 993 | DSA *dsa) |
| 994 | { |
| 995 | HCRYPTHASH hash; |
| 996 | DWORD slen; |
| 997 | DSA_SIG *ret = NULL; |
| 998 | CAPI_KEY *capi_key; |
| 999 | CAPI_CTX *ctx; |
| 1000 | unsigned char csigbuf[40]; |
| 1001 | |
| 1002 | ctx = ENGINE_get_ex_data(DSA_get0_engine(dsa), capi_idx); |
| 1003 | |
| 1004 | CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n"); |
| 1005 | |
| 1006 | capi_key = DSA_get_ex_data(dsa, dsa_capi_idx); |
| 1007 | |
| 1008 | if (!capi_key) { |
| 1009 | CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY); |
| 1010 | return NULL; |
| 1011 | } |
| 1012 | |
| 1013 | if (dlen != 20) { |
| 1014 | CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH); |
| 1015 | return NULL; |
| 1016 | } |
| 1017 | |
| 1018 | /* Create the hash object */ |
| 1019 | if (!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) { |
| 1020 | CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT); |
| 1021 | capi_addlasterror(); |
| 1022 | return NULL; |
| 1023 | } |
| 1024 | |
| 1025 | /* Set the hash value to the value passed */ |
| 1026 | if (!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) { |
| 1027 | CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE); |
| 1028 | capi_addlasterror(); |
| 1029 | goto err; |
| 1030 | } |
| 1031 | |
| 1032 | /* Finally sign it */ |
| 1033 | slen = sizeof(csigbuf); |
| 1034 | if (!CryptSignHash(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) { |
| 1035 | CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH); |
| 1036 | capi_addlasterror(); |
| 1037 | goto err; |
| 1038 | } else { |
| 1039 | BIGNUM *r = BN_new(), *s = BN_new(); |
| 1040 | |
| 1041 | if (r == NULL || s == NULL |
| 1042 | || !lend_tobn(r, csigbuf, 20) |
| 1043 | || !lend_tobn(s, csigbuf + 20, 20) |
| 1044 | || (ret = DSA_SIG_new()) == NULL) { |
| 1045 | BN_free(r); /* BN_free checks for BIGNUM * being NULL */ |
| 1046 | BN_free(s); |
| 1047 | goto err; |
| 1048 | } |
| 1049 | DSA_SIG_set0(ret, r, s); |
| 1050 | } |
| 1051 | |
| 1052 | /* Now cleanup */ |
| 1053 | |
| 1054 | err: |
| 1055 | OPENSSL_cleanse(csigbuf, 40); |
| 1056 | CryptDestroyHash(hash); |
| 1057 | return ret; |
| 1058 | } |
| 1059 | |
| 1060 | static int capi_dsa_free(DSA *dsa) |
| 1061 | { |
| 1062 | CAPI_KEY *capi_key; |
| 1063 | capi_key = DSA_get_ex_data(dsa, dsa_capi_idx); |
| 1064 | capi_free_key(capi_key); |
| 1065 | DSA_set_ex_data(dsa, dsa_capi_idx, 0); |
| 1066 | return 1; |
| 1067 | } |
| 1068 | # endif |
| 1069 | |
| 1070 | static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, |
| 1071 | va_list argptr) |
| 1072 | { |
| 1073 | BIO *out; |
| 1074 | |
| 1075 | if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file)) |
| 1076 | return; |
| 1077 | out = BIO_new_file(ctx->debug_file, "a+"); |
| 1078 | if (out == NULL) { |
| 1079 | CAPIerr(CAPI_F_CAPI_VTRACE, CAPI_R_FILE_OPEN_ERROR); |
| 1080 | return; |
| 1081 | } |
| 1082 | BIO_vprintf(out, format, argptr); |
| 1083 | BIO_free(out); |
| 1084 | } |
| 1085 | |
| 1086 | static void CAPI_trace(CAPI_CTX *ctx, char *format, ...) |
| 1087 | { |
| 1088 | va_list args; |
| 1089 | va_start(args, format); |
| 1090 | capi_vtrace(ctx, CAPI_DBG_TRACE, format, args); |
| 1091 | va_end(args); |
| 1092 | } |
| 1093 | |
| 1094 | static void capi_addlasterror(void) |
| 1095 | { |
| 1096 | capi_adderror(GetLastError()); |
| 1097 | } |
| 1098 | |
| 1099 | static void capi_adderror(DWORD err) |
| 1100 | { |
| 1101 | char errstr[10]; |
| 1102 | BIO_snprintf(errstr, 10, "%lX", err); |
| 1103 | ERR_add_error_data(2, "Error code= 0x", errstr); |
| 1104 | } |
| 1105 | |
| 1106 | static char *wide_to_asc(LPCWSTR wstr) |
| 1107 | { |
| 1108 | char *str; |
| 1109 | int len_0, sz; |
| 1110 | |
| 1111 | if (!wstr) |
| 1112 | return NULL; |
| 1113 | len_0 = (int)wcslen(wstr) + 1; /* WideCharToMultiByte expects int */ |
| 1114 | sz = WideCharToMultiByte(CP_ACP, 0, wstr, len_0, NULL, 0, NULL, NULL); |
| 1115 | if (!sz) { |
| 1116 | CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR); |
| 1117 | return NULL; |
| 1118 | } |
| 1119 | str = OPENSSL_malloc(sz); |
| 1120 | if (str == NULL) { |
| 1121 | CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE); |
| 1122 | return NULL; |
| 1123 | } |
| 1124 | if (!WideCharToMultiByte(CP_ACP, 0, wstr, len_0, str, sz, NULL, NULL)) { |
| 1125 | OPENSSL_free(str); |
| 1126 | CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR); |
| 1127 | return NULL; |
| 1128 | } |
| 1129 | return str; |
| 1130 | } |
| 1131 | |
| 1132 | static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, |
| 1133 | DWORD idx) |
| 1134 | { |
| 1135 | DWORD len, err; |
| 1136 | LPTSTR name; |
| 1137 | CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx); |
| 1138 | if (!CryptEnumProviders(idx, NULL, 0, ptype, NULL, &len)) { |
| 1139 | err = GetLastError(); |
| 1140 | if (err == ERROR_NO_MORE_ITEMS) |
| 1141 | return 2; |
| 1142 | CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR); |
| 1143 | capi_adderror(err); |
| 1144 | return 0; |
| 1145 | } |
| 1146 | name = OPENSSL_malloc(len); |
| 1147 | if (name == NULL) { |
| 1148 | CAPIerr(CAPI_F_CAPI_GET_PROVNAME, ERR_R_MALLOC_FAILURE); |
| 1149 | return 0; |
| 1150 | } |
| 1151 | if (!CryptEnumProviders(idx, NULL, 0, ptype, name, &len)) { |
| 1152 | err = GetLastError(); |
| 1153 | OPENSSL_free(name); |
| 1154 | if (err == ERROR_NO_MORE_ITEMS) |
| 1155 | return 2; |
| 1156 | CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR); |
| 1157 | capi_adderror(err); |
| 1158 | return 0; |
| 1159 | } |
| 1160 | if (sizeof(TCHAR) != sizeof(char)) { |
| 1161 | *pname = wide_to_asc((WCHAR *)name); |
| 1162 | OPENSSL_free(name); |
| 1163 | if (*pname == NULL) |
| 1164 | return 0; |
| 1165 | } else { |
| 1166 | *pname = (char *)name; |
| 1167 | } |
| 1168 | CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", *pname, |
| 1169 | *ptype); |
| 1170 | |
| 1171 | return 1; |
| 1172 | } |
| 1173 | |
| 1174 | static int capi_list_providers(CAPI_CTX *ctx, BIO *out) |
| 1175 | { |
| 1176 | DWORD idx, ptype; |
| 1177 | int ret; |
| 1178 | LPSTR provname = NULL; |
| 1179 | CAPI_trace(ctx, "capi_list_providers\n"); |
| 1180 | BIO_printf(out, "Available CSPs:\n"); |
| 1181 | for (idx = 0;; idx++) { |
| 1182 | ret = capi_get_provname(ctx, &provname, &ptype, idx); |
| 1183 | if (ret == 2) |
| 1184 | break; |
| 1185 | if (ret == 0) |
| 1186 | break; |
| 1187 | BIO_printf(out, "%lu. %s, type %lu\n", idx, provname, ptype); |
| 1188 | OPENSSL_free(provname); |
| 1189 | } |
| 1190 | return 1; |
| 1191 | } |
| 1192 | |
| 1193 | static int capi_list_containers(CAPI_CTX *ctx, BIO *out) |
| 1194 | { |
| 1195 | int ret = 1; |
| 1196 | HCRYPTPROV hprov; |
| 1197 | DWORD err, idx, flags, buflen = 0, clen; |
| 1198 | LPSTR cname; |
| 1199 | LPWSTR cspname = NULL; |
| 1200 | |
| 1201 | CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, |
| 1202 | ctx->csptype); |
| 1203 | if (ctx->cspname != NULL) { |
| 1204 | if ((clen = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, |
| 1205 | NULL, 0))) { |
| 1206 | cspname = alloca(clen * sizeof(WCHAR)); |
| 1207 | MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, (WCHAR *)cspname, |
| 1208 | clen); |
| 1209 | } |
| 1210 | if (cspname == NULL) { |
| 1211 | CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE); |
| 1212 | capi_addlasterror(); |
| 1213 | return 0; |
| 1214 | } |
| 1215 | } |
| 1216 | if (!CryptAcquireContextW(&hprov, NULL, cspname, ctx->csptype, |
| 1217 | CRYPT_VERIFYCONTEXT)) { |
| 1218 | CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, |
| 1219 | CAPI_R_CRYPTACQUIRECONTEXT_ERROR); |
| 1220 | capi_addlasterror(); |
| 1221 | return 0; |
| 1222 | } |
| 1223 | if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, |
| 1224 | CRYPT_FIRST)) { |
| 1225 | CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR); |
| 1226 | capi_addlasterror(); |
| 1227 | CryptReleaseContext(hprov, 0); |
| 1228 | return 0; |
| 1229 | } |
| 1230 | CAPI_trace(ctx, "Got max container len %d\n", buflen); |
| 1231 | if (buflen == 0) |
| 1232 | buflen = 1024; |
| 1233 | cname = OPENSSL_malloc(buflen); |
| 1234 | if (cname == NULL) { |
| 1235 | CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE); |
| 1236 | goto err; |
| 1237 | } |
| 1238 | |
| 1239 | for (idx = 0;; idx++) { |
| 1240 | clen = buflen; |
| 1241 | cname[0] = 0; |
| 1242 | |
| 1243 | if (idx == 0) |
| 1244 | flags = CRYPT_FIRST; |
| 1245 | else |
| 1246 | flags = 0; |
| 1247 | if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, (BYTE *)cname, |
| 1248 | &clen, flags)) { |
| 1249 | err = GetLastError(); |
| 1250 | if (err == ERROR_NO_MORE_ITEMS) |
| 1251 | goto done; |
| 1252 | CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR); |
| 1253 | capi_adderror(err); |
| 1254 | goto err; |
| 1255 | } |
| 1256 | CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", |
| 1257 | cname, clen, idx, flags); |
| 1258 | if (!cname[0] && (clen == buflen)) { |
| 1259 | CAPI_trace(ctx, "Enumerate bug: using workaround\n"); |
| 1260 | goto done; |
| 1261 | } |
| 1262 | BIO_printf(out, "%lu. %s\n", idx, cname); |
| 1263 | } |
| 1264 | err: |
| 1265 | |
| 1266 | ret = 0; |
| 1267 | |
| 1268 | done: |
| 1269 | OPENSSL_free(cname); |
| 1270 | CryptReleaseContext(hprov, 0); |
| 1271 | |
| 1272 | return ret; |
| 1273 | } |
| 1274 | |
| 1275 | static CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, |
| 1276 | PCCERT_CONTEXT cert) |
| 1277 | { |
| 1278 | DWORD len; |
| 1279 | CRYPT_KEY_PROV_INFO *pinfo; |
| 1280 | |
| 1281 | if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, |
| 1282 | NULL, &len)) |
| 1283 | return NULL; |
| 1284 | pinfo = OPENSSL_malloc(len); |
| 1285 | if (pinfo == NULL) { |
| 1286 | CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE); |
| 1287 | return NULL; |
| 1288 | } |
| 1289 | if (!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, |
| 1290 | pinfo, &len)) { |
| 1291 | CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, |
| 1292 | CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO); |
| 1293 | capi_addlasterror(); |
| 1294 | OPENSSL_free(pinfo); |
| 1295 | return NULL; |
| 1296 | } |
| 1297 | return pinfo; |
| 1298 | } |
| 1299 | |
| 1300 | static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, |
| 1301 | CRYPT_KEY_PROV_INFO *pinfo) |
| 1302 | { |
| 1303 | char *provname = NULL, *contname = NULL; |
| 1304 | if (!pinfo) { |
| 1305 | BIO_printf(out, " No Private Key\n"); |
| 1306 | return; |
| 1307 | } |
| 1308 | provname = wide_to_asc(pinfo->pwszProvName); |
| 1309 | contname = wide_to_asc(pinfo->pwszContainerName); |
| 1310 | if (!provname || !contname) |
| 1311 | goto err; |
| 1312 | |
| 1313 | BIO_printf(out, " Private Key Info:\n"); |
| 1314 | BIO_printf(out, " Provider Name: %s, Provider Type %lu\n", provname, |
| 1315 | pinfo->dwProvType); |
| 1316 | BIO_printf(out, " Container Name: %s, Key Type %lu\n", contname, |
| 1317 | pinfo->dwKeySpec); |
| 1318 | err: |
| 1319 | OPENSSL_free(provname); |
| 1320 | OPENSSL_free(contname); |
| 1321 | } |
| 1322 | |
| 1323 | static char *capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert) |
| 1324 | { |
| 1325 | LPWSTR wfname; |
| 1326 | DWORD dlen; |
| 1327 | |
| 1328 | CAPI_trace(ctx, "capi_cert_get_fname\n"); |
| 1329 | if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, |
| 1330 | NULL, &dlen)) |
| 1331 | return NULL; |
| 1332 | wfname = OPENSSL_malloc(dlen); |
| 1333 | if (wfname == NULL) |
| 1334 | return NULL; |
| 1335 | if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, |
| 1336 | wfname, &dlen)) { |
| 1337 | char *fname = wide_to_asc(wfname); |
| 1338 | OPENSSL_free(wfname); |
| 1339 | return fname; |
| 1340 | } |
| 1341 | CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME); |
| 1342 | capi_addlasterror(); |
| 1343 | |
| 1344 | OPENSSL_free(wfname); |
| 1345 | return NULL; |
| 1346 | } |
| 1347 | |
| 1348 | static void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert) |
| 1349 | { |
| 1350 | X509 *x; |
| 1351 | const unsigned char *p; |
| 1352 | unsigned long flags = ctx->dump_flags; |
| 1353 | if (flags & CAPI_DMP_FNAME) { |
| 1354 | char *fname; |
| 1355 | fname = capi_cert_get_fname(ctx, cert); |
| 1356 | if (fname) { |
| 1357 | BIO_printf(out, " Friendly Name \"%s\"\n", fname); |
| 1358 | OPENSSL_free(fname); |
| 1359 | } else { |
| 1360 | BIO_printf(out, " <No Friendly Name>\n"); |
| 1361 | } |
| 1362 | } |
| 1363 | |
| 1364 | p = cert->pbCertEncoded; |
| 1365 | x = d2i_X509(NULL, &p, cert->cbCertEncoded); |
| 1366 | if (!x) |
| 1367 | BIO_printf(out, " <Can't parse certificate>\n"); |
| 1368 | if (flags & CAPI_DMP_SUMMARY) { |
| 1369 | BIO_printf(out, " Subject: "); |
| 1370 | X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE); |
| 1371 | BIO_printf(out, "\n Issuer: "); |
| 1372 | X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE); |
| 1373 | BIO_printf(out, "\n"); |
| 1374 | } |
| 1375 | if (flags & CAPI_DMP_FULL) |
| 1376 | X509_print_ex(out, x, XN_FLAG_ONELINE, 0); |
| 1377 | |
| 1378 | if (flags & CAPI_DMP_PKEYINFO) { |
| 1379 | CRYPT_KEY_PROV_INFO *pinfo; |
| 1380 | pinfo = capi_get_prov_info(ctx, cert); |
| 1381 | capi_dump_prov_info(ctx, out, pinfo); |
| 1382 | OPENSSL_free(pinfo); |
| 1383 | } |
| 1384 | |
| 1385 | if (flags & CAPI_DMP_PEM) |
| 1386 | PEM_write_bio_X509(out, x); |
| 1387 | X509_free(x); |
| 1388 | } |
| 1389 | |
| 1390 | static HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename) |
| 1391 | { |
| 1392 | HCERTSTORE hstore; |
| 1393 | |
| 1394 | if (!storename) |
| 1395 | storename = ctx->storename; |
| 1396 | if (!storename) |
| 1397 | storename = "MY"; |
| 1398 | CAPI_trace(ctx, "Opening certificate store %s\n", storename); |
| 1399 | |
| 1400 | hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0, |
| 1401 | ctx->store_flags, storename); |
| 1402 | if (!hstore) { |
| 1403 | CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE); |
| 1404 | capi_addlasterror(); |
| 1405 | } |
| 1406 | return hstore; |
| 1407 | } |
| 1408 | |
| 1409 | int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id) |
| 1410 | { |
| 1411 | char *storename; |
| 1412 | int idx; |
| 1413 | int ret = 1; |
| 1414 | HCERTSTORE hstore; |
| 1415 | PCCERT_CONTEXT cert = NULL; |
| 1416 | |
| 1417 | storename = ctx->storename; |
| 1418 | if (!storename) |
| 1419 | storename = "MY"; |
| 1420 | CAPI_trace(ctx, "Listing certs for store %s\n", storename); |
| 1421 | |
| 1422 | hstore = capi_open_store(ctx, storename); |
| 1423 | if (!hstore) |
| 1424 | return 0; |
| 1425 | if (id) { |
| 1426 | cert = capi_find_cert(ctx, id, hstore); |
| 1427 | if (!cert) { |
| 1428 | ret = 0; |
| 1429 | goto err; |
| 1430 | } |
| 1431 | capi_dump_cert(ctx, out, cert); |
| 1432 | CertFreeCertificateContext(cert); |
| 1433 | } else { |
| 1434 | for (idx = 0;; idx++) { |
| 1435 | cert = CertEnumCertificatesInStore(hstore, cert); |
| 1436 | if (!cert) |
| 1437 | break; |
| 1438 | BIO_printf(out, "Certificate %d\n", idx); |
| 1439 | capi_dump_cert(ctx, out, cert); |
| 1440 | } |
| 1441 | } |
| 1442 | err: |
| 1443 | CertCloseStore(hstore, 0); |
| 1444 | return ret; |
| 1445 | } |
| 1446 | |
| 1447 | static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, |
| 1448 | HCERTSTORE hstore) |
| 1449 | { |
| 1450 | PCCERT_CONTEXT cert = NULL; |
| 1451 | char *fname = NULL; |
| 1452 | int match; |
| 1453 | switch (ctx->lookup_method) { |
| 1454 | case CAPI_LU_SUBSTR: |
| 1455 | return CertFindCertificateInStore(hstore, X509_ASN_ENCODING, 0, |
| 1456 | CERT_FIND_SUBJECT_STR_A, id, NULL); |
| 1457 | case CAPI_LU_FNAME: |
| 1458 | for (;;) { |
| 1459 | cert = CertEnumCertificatesInStore(hstore, cert); |
| 1460 | if (!cert) |
| 1461 | return NULL; |
| 1462 | fname = capi_cert_get_fname(ctx, cert); |
| 1463 | if (fname) { |
| 1464 | if (strcmp(fname, id)) |
| 1465 | match = 0; |
| 1466 | else |
| 1467 | match = 1; |
| 1468 | OPENSSL_free(fname); |
| 1469 | if (match) |
| 1470 | return cert; |
| 1471 | } |
| 1472 | } |
| 1473 | default: |
| 1474 | return NULL; |
| 1475 | } |
| 1476 | } |
| 1477 | |
| 1478 | static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const WCHAR *contname, |
| 1479 | const WCHAR *provname, DWORD ptype, |
| 1480 | DWORD keyspec) |
| 1481 | { |
| 1482 | DWORD dwFlags = 0; |
| 1483 | CAPI_KEY *key = OPENSSL_malloc(sizeof(*key)); |
| 1484 | |
| 1485 | if (key == NULL) |
| 1486 | return NULL; |
| 1487 | /* If PROV_RSA_AES supported use it instead */ |
| 1488 | if (ptype == PROV_RSA_FULL && use_aes_csp && |
| 1489 | wcscmp(provname, rsa_enh_cspname) == 0) { |
| 1490 | provname = rsa_aes_cspname; |
| 1491 | ptype = PROV_RSA_AES; |
| 1492 | } |
| 1493 | if (ctx && ctx->debug_level >= CAPI_DBG_TRACE && ctx->debug_file) { |
| 1494 | /* |
| 1495 | * above 'if' is [complementary] copy from CAPI_trace and serves |
| 1496 | * as optimization to minimize [below] malloc-ations |
| 1497 | */ |
| 1498 | char *_contname = wide_to_asc(contname); |
| 1499 | char *_provname = wide_to_asc(provname); |
| 1500 | |
| 1501 | CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n", |
| 1502 | _contname, _provname, ptype); |
| 1503 | OPENSSL_free(_provname); |
| 1504 | OPENSSL_free(_contname); |
| 1505 | } |
| 1506 | if (ctx->store_flags & CERT_SYSTEM_STORE_LOCAL_MACHINE) |
| 1507 | dwFlags = CRYPT_MACHINE_KEYSET; |
| 1508 | if (!CryptAcquireContextW(&key->hprov, contname, provname, ptype, |
| 1509 | dwFlags)) { |
| 1510 | CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR); |
| 1511 | capi_addlasterror(); |
| 1512 | goto err; |
| 1513 | } |
| 1514 | if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) { |
| 1515 | CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR); |
| 1516 | capi_addlasterror(); |
| 1517 | CryptReleaseContext(key->hprov, 0); |
| 1518 | goto err; |
| 1519 | } |
| 1520 | key->keyspec = keyspec; |
| 1521 | key->pcert = NULL; |
| 1522 | return key; |
| 1523 | |
| 1524 | err: |
| 1525 | OPENSSL_free(key); |
| 1526 | return NULL; |
| 1527 | } |
| 1528 | |
| 1529 | static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert) |
| 1530 | { |
| 1531 | CAPI_KEY *key = NULL; |
| 1532 | CRYPT_KEY_PROV_INFO *pinfo = NULL; |
| 1533 | |
| 1534 | pinfo = capi_get_prov_info(ctx, cert); |
| 1535 | |
| 1536 | if (pinfo != NULL) |
| 1537 | key = capi_get_key(ctx, pinfo->pwszContainerName, pinfo->pwszProvName, |
| 1538 | pinfo->dwProvType, pinfo->dwKeySpec); |
| 1539 | |
| 1540 | OPENSSL_free(pinfo); |
| 1541 | return key; |
| 1542 | } |
| 1543 | |
| 1544 | CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id) |
| 1545 | { |
| 1546 | PCCERT_CONTEXT cert; |
| 1547 | HCERTSTORE hstore; |
| 1548 | CAPI_KEY *key = NULL; |
| 1549 | |
| 1550 | switch (ctx->lookup_method) { |
| 1551 | case CAPI_LU_SUBSTR: |
| 1552 | case CAPI_LU_FNAME: |
| 1553 | hstore = capi_open_store(ctx, NULL); |
| 1554 | if (!hstore) |
| 1555 | return NULL; |
| 1556 | cert = capi_find_cert(ctx, id, hstore); |
| 1557 | if (cert) { |
| 1558 | key = capi_get_cert_key(ctx, cert); |
| 1559 | CertFreeCertificateContext(cert); |
| 1560 | } |
| 1561 | CertCloseStore(hstore, 0); |
| 1562 | break; |
| 1563 | |
| 1564 | case CAPI_LU_CONTNAME: |
| 1565 | { |
| 1566 | WCHAR *contname, *provname; |
| 1567 | DWORD len; |
| 1568 | |
| 1569 | if ((len = MultiByteToWideChar(CP_ACP, 0, id, -1, NULL, 0)) && |
| 1570 | (contname = alloca(len * sizeof(WCHAR)), |
| 1571 | MultiByteToWideChar(CP_ACP, 0, id, -1, contname, len)) && |
| 1572 | (len = MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, |
| 1573 | NULL, 0)) && |
| 1574 | (provname = alloca(len * sizeof(WCHAR)), |
| 1575 | MultiByteToWideChar(CP_ACP, 0, ctx->cspname, -1, |
| 1576 | provname, len))) |
| 1577 | key = capi_get_key(ctx, contname, provname, |
| 1578 | ctx->csptype, ctx->keytype); |
| 1579 | } |
| 1580 | break; |
| 1581 | } |
| 1582 | |
| 1583 | return key; |
| 1584 | } |
| 1585 | |
| 1586 | void capi_free_key(CAPI_KEY *key) |
| 1587 | { |
| 1588 | if (!key) |
| 1589 | return; |
| 1590 | CryptDestroyKey(key->key); |
| 1591 | CryptReleaseContext(key->hprov, 0); |
| 1592 | if (key->pcert) |
| 1593 | CertFreeCertificateContext(key->pcert); |
| 1594 | OPENSSL_free(key); |
| 1595 | } |
| 1596 | |
| 1597 | /* Initialize a CAPI_CTX structure */ |
| 1598 | |
| 1599 | static CAPI_CTX *capi_ctx_new(void) |
| 1600 | { |
| 1601 | CAPI_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); |
| 1602 | |
| 1603 | if (ctx == NULL) { |
| 1604 | CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE); |
| 1605 | return NULL; |
| 1606 | } |
| 1607 | ctx->csptype = PROV_RSA_FULL; |
| 1608 | ctx->dump_flags = CAPI_DMP_SUMMARY | CAPI_DMP_FNAME; |
| 1609 | ctx->keytype = AT_KEYEXCHANGE; |
| 1610 | ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG | |
| 1611 | CERT_STORE_READONLY_FLAG | CERT_SYSTEM_STORE_CURRENT_USER; |
| 1612 | ctx->lookup_method = CAPI_LU_SUBSTR; |
| 1613 | ctx->client_cert_select = cert_select_simple; |
| 1614 | return ctx; |
| 1615 | } |
| 1616 | |
| 1617 | static void capi_ctx_free(CAPI_CTX *ctx) |
| 1618 | { |
| 1619 | CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx); |
| 1620 | if (!ctx) |
| 1621 | return; |
| 1622 | OPENSSL_free(ctx->cspname); |
| 1623 | OPENSSL_free(ctx->debug_file); |
| 1624 | OPENSSL_free(ctx->storename); |
| 1625 | OPENSSL_free(ctx->ssl_client_store); |
| 1626 | OPENSSL_free(ctx); |
| 1627 | } |
| 1628 | |
| 1629 | static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, |
| 1630 | int check) |
| 1631 | { |
| 1632 | LPSTR tmpcspname; |
| 1633 | |
| 1634 | CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type); |
| 1635 | if (check) { |
| 1636 | HCRYPTPROV hprov; |
| 1637 | LPWSTR name = NULL; |
| 1638 | DWORD len; |
| 1639 | |
| 1640 | if ((len = MultiByteToWideChar(CP_ACP, 0, pname, -1, NULL, 0))) { |
| 1641 | name = alloca(len * sizeof(WCHAR)); |
| 1642 | MultiByteToWideChar(CP_ACP, 0, pname, -1, (WCHAR *)name, len); |
| 1643 | } |
| 1644 | if (name == NULL || !CryptAcquireContextW(&hprov, NULL, name, type, |
| 1645 | CRYPT_VERIFYCONTEXT)) { |
| 1646 | CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, |
| 1647 | CAPI_R_CRYPTACQUIRECONTEXT_ERROR); |
| 1648 | capi_addlasterror(); |
| 1649 | return 0; |
| 1650 | } |
| 1651 | CryptReleaseContext(hprov, 0); |
| 1652 | } |
| 1653 | tmpcspname = OPENSSL_strdup(pname); |
| 1654 | if (tmpcspname == NULL) { |
| 1655 | CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, ERR_R_MALLOC_FAILURE); |
| 1656 | return 0; |
| 1657 | } |
| 1658 | OPENSSL_free(ctx->cspname); |
| 1659 | ctx->cspname = tmpcspname; |
| 1660 | ctx->csptype = type; |
| 1661 | return 1; |
| 1662 | } |
| 1663 | |
| 1664 | static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx) |
| 1665 | { |
| 1666 | LPSTR pname; |
| 1667 | DWORD type; |
| 1668 | int res; |
| 1669 | if (capi_get_provname(ctx, &pname, &type, idx) != 1) |
| 1670 | return 0; |
| 1671 | res = capi_ctx_set_provname(ctx, pname, type, 0); |
| 1672 | OPENSSL_free(pname); |
| 1673 | return res; |
| 1674 | } |
| 1675 | |
| 1676 | static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x) |
| 1677 | { |
| 1678 | int i; |
| 1679 | X509_NAME *nm; |
| 1680 | /* Special case: empty list: match anything */ |
| 1681 | if (sk_X509_NAME_num(ca_dn) <= 0) |
| 1682 | return 1; |
| 1683 | for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) { |
| 1684 | nm = sk_X509_NAME_value(ca_dn, i); |
| 1685 | if (!X509_NAME_cmp(nm, X509_get_issuer_name(x))) |
| 1686 | return 1; |
| 1687 | } |
| 1688 | return 0; |
| 1689 | } |
| 1690 | |
| 1691 | static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl, |
| 1692 | STACK_OF(X509_NAME) *ca_dn, X509 **pcert, |
| 1693 | EVP_PKEY **pkey, STACK_OF(X509) **pother, |
| 1694 | UI_METHOD *ui_method, |
| 1695 | void *callback_data) |
| 1696 | { |
| 1697 | STACK_OF(X509) *certs = NULL; |
| 1698 | X509 *x; |
| 1699 | char *storename; |
| 1700 | const unsigned char *p; |
| 1701 | int i, client_cert_idx; |
| 1702 | HCERTSTORE hstore; |
| 1703 | PCCERT_CONTEXT cert = NULL, excert = NULL; |
| 1704 | CAPI_CTX *ctx; |
| 1705 | CAPI_KEY *key; |
| 1706 | ctx = ENGINE_get_ex_data(e, capi_idx); |
| 1707 | |
| 1708 | *pcert = NULL; |
| 1709 | *pkey = NULL; |
| 1710 | |
| 1711 | storename = ctx->ssl_client_store; |
| 1712 | if (!storename) |
| 1713 | storename = "MY"; |
| 1714 | |
| 1715 | hstore = capi_open_store(ctx, storename); |
| 1716 | if (!hstore) |
| 1717 | return 0; |
| 1718 | /* Enumerate all certificates collect any matches */ |
| 1719 | for (i = 0;; i++) { |
| 1720 | cert = CertEnumCertificatesInStore(hstore, cert); |
| 1721 | if (!cert) |
| 1722 | break; |
| 1723 | p = cert->pbCertEncoded; |
| 1724 | x = d2i_X509(NULL, &p, cert->cbCertEncoded); |
| 1725 | if (!x) { |
| 1726 | CAPI_trace(ctx, "Can't Parse Certificate %d\n", i); |
| 1727 | continue; |
| 1728 | } |
| 1729 | if (cert_issuer_match(ca_dn, x) |
| 1730 | && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) { |
| 1731 | key = capi_get_cert_key(ctx, cert); |
| 1732 | if (!key) { |
| 1733 | X509_free(x); |
| 1734 | continue; |
| 1735 | } |
| 1736 | /* |
| 1737 | * Match found: attach extra data to it so we can retrieve the |
| 1738 | * key later. |
| 1739 | */ |
| 1740 | excert = CertDuplicateCertificateContext(cert); |
| 1741 | key->pcert = excert; |
| 1742 | X509_set_ex_data(x, cert_capi_idx, key); |
| 1743 | |
| 1744 | if (!certs) |
| 1745 | certs = sk_X509_new_null(); |
| 1746 | |
| 1747 | sk_X509_push(certs, x); |
| 1748 | } else { |
| 1749 | X509_free(x); |
| 1750 | } |
| 1751 | } |
| 1752 | |
| 1753 | if (cert) |
| 1754 | CertFreeCertificateContext(cert); |
| 1755 | if (hstore) |
| 1756 | CertCloseStore(hstore, 0); |
| 1757 | |
| 1758 | if (!certs) |
| 1759 | return 0; |
| 1760 | |
| 1761 | /* Select the appropriate certificate */ |
| 1762 | |
| 1763 | client_cert_idx = ctx->client_cert_select(e, ssl, certs); |
| 1764 | |
| 1765 | /* Set the selected certificate and free the rest */ |
| 1766 | |
| 1767 | for (i = 0; i < sk_X509_num(certs); i++) { |
| 1768 | x = sk_X509_value(certs, i); |
| 1769 | if (i == client_cert_idx) |
| 1770 | *pcert = x; |
| 1771 | else { |
| 1772 | key = X509_get_ex_data(x, cert_capi_idx); |
| 1773 | capi_free_key(key); |
| 1774 | X509_free(x); |
| 1775 | } |
| 1776 | } |
| 1777 | |
| 1778 | sk_X509_free(certs); |
| 1779 | |
| 1780 | if (!*pcert) |
| 1781 | return 0; |
| 1782 | |
| 1783 | /* Setup key for selected certificate */ |
| 1784 | |
| 1785 | key = X509_get_ex_data(*pcert, cert_capi_idx); |
| 1786 | *pkey = capi_get_pkey(e, key); |
| 1787 | X509_set_ex_data(*pcert, cert_capi_idx, NULL); |
| 1788 | |
| 1789 | return 1; |
| 1790 | |
| 1791 | } |
| 1792 | |
| 1793 | /* Simple client cert selection function: always select first */ |
| 1794 | |
| 1795 | static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs) |
| 1796 | { |
| 1797 | return 0; |
| 1798 | } |
| 1799 | |
| 1800 | # ifdef OPENSSL_CAPIENG_DIALOG |
| 1801 | |
| 1802 | /* |
| 1803 | * More complex cert selection function, using standard function |
| 1804 | * CryptUIDlgSelectCertificateFromStore() to produce a dialog box. |
| 1805 | */ |
| 1806 | |
| 1807 | /* |
| 1808 | * Definitions which are in cryptuiapi.h but this is not present in older |
| 1809 | * versions of headers. |
| 1810 | */ |
| 1811 | |
| 1812 | # ifndef CRYPTUI_SELECT_LOCATION_COLUMN |
| 1813 | # define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010 |
| 1814 | # define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004 |
| 1815 | # endif |
| 1816 | |
| 1817 | # define dlg_title L"OpenSSL Application SSL Client Certificate Selection" |
| 1818 | # define dlg_prompt L"Select a certificate to use for authentication" |
| 1819 | # define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \ |
| 1820 | |CRYPTUI_SELECT_INTENDEDUSE_COLUMN |
| 1821 | |
| 1822 | static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs) |
| 1823 | { |
| 1824 | X509 *x; |
| 1825 | HCERTSTORE dstore; |
| 1826 | PCCERT_CONTEXT cert; |
| 1827 | CAPI_CTX *ctx; |
| 1828 | CAPI_KEY *key; |
| 1829 | HWND hwnd; |
| 1830 | int i, idx = -1; |
| 1831 | if (sk_X509_num(certs) == 1) |
| 1832 | return 0; |
| 1833 | ctx = ENGINE_get_ex_data(e, capi_idx); |
| 1834 | /* Create an in memory store of certificates */ |
| 1835 | dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0, |
| 1836 | CERT_STORE_CREATE_NEW_FLAG, NULL); |
| 1837 | if (!dstore) { |
| 1838 | CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE); |
| 1839 | capi_addlasterror(); |
| 1840 | goto err; |
| 1841 | } |
| 1842 | /* Add all certificates to store */ |
| 1843 | for (i = 0; i < sk_X509_num(certs); i++) { |
| 1844 | x = sk_X509_value(certs, i); |
| 1845 | key = X509_get_ex_data(x, cert_capi_idx); |
| 1846 | |
| 1847 | if (!CertAddCertificateContextToStore(dstore, key->pcert, |
| 1848 | CERT_STORE_ADD_NEW, NULL)) { |
| 1849 | CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT); |
| 1850 | capi_addlasterror(); |
| 1851 | goto err; |
| 1852 | } |
| 1853 | |
| 1854 | } |
| 1855 | hwnd = GetForegroundWindow(); |
| 1856 | if (!hwnd) |
| 1857 | hwnd = GetActiveWindow(); |
| 1858 | if (!hwnd && ctx->getconswindow) |
| 1859 | hwnd = ctx->getconswindow(); |
| 1860 | /* Call dialog to select one */ |
| 1861 | cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt, |
| 1862 | dlg_columns, 0, NULL); |
| 1863 | |
| 1864 | /* Find matching cert from list */ |
| 1865 | if (cert) { |
| 1866 | for (i = 0; i < sk_X509_num(certs); i++) { |
| 1867 | x = sk_X509_value(certs, i); |
| 1868 | key = X509_get_ex_data(x, cert_capi_idx); |
| 1869 | if (CertCompareCertificate |
| 1870 | (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert->pCertInfo, |
| 1871 | key->pcert->pCertInfo)) { |
| 1872 | idx = i; |
| 1873 | break; |
| 1874 | } |
| 1875 | } |
| 1876 | } |
| 1877 | |
| 1878 | err: |
| 1879 | if (dstore) |
| 1880 | CertCloseStore(dstore, 0); |
| 1881 | return idx; |
| 1882 | |
| 1883 | } |
| 1884 | # endif |
| 1885 | |
| 1886 | #else /* !__COMPILE_CAPIENG */ |
| 1887 | # include <openssl/engine.h> |
| 1888 | # ifndef OPENSSL_NO_DYNAMIC_ENGINE |
| 1889 | OPENSSL_EXPORT |
| 1890 | int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); |
| 1891 | OPENSSL_EXPORT |
| 1892 | int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) |
| 1893 | { |
| 1894 | return 0; |
| 1895 | } |
| 1896 | |
| 1897 | IMPLEMENT_DYNAMIC_CHECK_FN() |
| 1898 | # else |
| 1899 | void engine_load_capi_int(void); |
| 1900 | void engine_load_capi_int(void) |
| 1901 | { |
| 1902 | } |
| 1903 | # endif |
| 1904 | #endif |