| 1 |
/* |
| 2 |
* Copyright (C) 1998,1999,2000 Nikos Mavroyanopoulos |
| 3 |
* |
| 4 |
* This library is free software; you can redistribute it and/or modify it |
| 5 |
* under the terms of the GNU Library General Public License as published |
| 6 |
* by the Free Software Foundation; either version 2 of the License, or |
| 7 |
* (at your option) any later version. |
| 8 |
* |
| 9 |
* This library is distributed in the hope that it will be useful, |
| 10 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 |
* Library General Public License for more details. |
| 13 |
* |
| 14 |
* You should have received a copy of the GNU Library General Public |
| 15 |
* License along with this library; if not, write to the |
| 16 |
* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 17 |
* Boston, MA 02111-1307, USA. |
| 18 |
*/ |
| 19 |
|
| 20 |
#ifndef LIBDEFS_H |
| 21 |
#define LIBDEFS_H |
| 22 |
#include <libdefs.h> |
| 23 |
#endif |
| 24 |
#include <bzero.h> |
| 25 |
#include <mcrypt_internal.h> |
| 26 |
#include <xmemory.h> |
| 27 |
|
| 28 |
#if 0 |
| 29 |
extern int preloaded_symbols; |
| 30 |
#endif |
| 31 |
|
| 32 |
int mcrypt_module_close(MCRYPT td) |
| 33 |
{ |
| 34 |
|
| 35 |
lt_dlclose(td->algorithm_handle); |
| 36 |
lt_dlclose(td->mode_handle); |
| 37 |
lt_dlexit(); |
| 38 |
|
| 39 |
td->algorithm_handle = NULL; |
| 40 |
td->mode_handle = NULL; |
| 41 |
|
| 42 |
td->m_encrypt = NULL; |
| 43 |
td->a_encrypt = NULL; |
| 44 |
td->a_decrypt = NULL; |
| 45 |
td->m_decrypt = NULL; |
| 46 |
|
| 47 |
return 0; |
| 48 |
} |
| 49 |
|
| 50 |
#if 0 |
| 51 |
int mcrypt_modules_preopen() |
| 52 |
{ |
| 53 |
|
| 54 |
if (preloaded_symbols==0) { |
| 55 |
preloaded_symbols = 1; |
| 56 |
LTDL_SET_PRELOADED_SYMBOLS(); |
| 57 |
} |
| 58 |
|
| 59 |
return 0; |
| 60 |
} |
| 61 |
#endif |
| 62 |
|
| 63 |
MCRYPT mcrypt_module_open(char *algorithm, |
| 64 |
char *a_directory, char *mode, char *m_directory) |
| 65 |
{ |
| 66 |
MCRYPT td; |
| 67 |
|
| 68 |
td = calloc(1, sizeof(CRYPT_STREAM)); |
| 69 |
|
| 70 |
if (lt_dlinit() != 0) { |
| 71 |
return MCRYPT_FAILED; |
| 72 |
} |
| 73 |
|
| 74 |
if (a_directory != NULL) |
| 75 |
lt_dladdsearchdir(a_directory); |
| 76 |
if (m_directory != NULL) |
| 77 |
lt_dladdsearchdir(m_directory); |
| 78 |
lt_dladdsearchdir(LIBDIR); |
| 79 |
|
| 80 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 81 |
|
| 82 |
td->algorithm_handle = lt_dlopenext(algorithm); |
| 83 |
if (td->algorithm_handle == NULL) { |
| 84 |
fputs(lt_dlerror(), stderr); |
| 85 |
fputs("\n", stderr); |
| 86 |
return MCRYPT_FAILED; |
| 87 |
} |
| 88 |
|
| 89 |
td->mode_handle = lt_dlopenext(mode); |
| 90 |
|
| 91 |
if (td->mode_handle == NULL) { |
| 92 |
fputs(lt_dlerror(), stderr); |
| 93 |
fputs("\n", stderr); |
| 94 |
lt_dlclose(td->algorithm_handle); |
| 95 |
return MCRYPT_FAILED; |
| 96 |
} |
| 97 |
|
| 98 |
td->a_encrypt = lt_dlsym(td->algorithm_handle, "_mcrypt_encrypt"); |
| 99 |
td->a_decrypt = lt_dlsym(td->algorithm_handle, "_mcrypt_decrypt"); |
| 100 |
td->m_encrypt = lt_dlsym(td->mode_handle, "_mcrypt"); |
| 101 |
td->m_decrypt = lt_dlsym(td->mode_handle, "_mdecrypt"); |
| 102 |
td->a_block_size = |
| 103 |
lt_dlsym(td->algorithm_handle, "_mcrypt_get_block_size"); |
| 104 |
|
| 105 |
if (mcrypt_enc_is_block_algorithm_mode(td) != |
| 106 |
mcrypt_enc_is_block_algorithm(td)) { |
| 107 |
mcrypt_module_close(td); |
| 108 |
return MCRYPT_FAILED; |
| 109 |
} |
| 110 |
|
| 111 |
return td; |
| 112 |
} |
| 113 |
|
| 114 |
|
| 115 |
|
| 116 |
/* Modules' frontends */ |
| 117 |
|
| 118 |
int mcrypt_get_size(MCRYPT td) |
| 119 |
{ |
| 120 |
int (*_mcrypt_get_size) (void); |
| 121 |
|
| 122 |
const char *error; |
| 123 |
char *s; |
| 124 |
|
| 125 |
s = td->algorithm_handle; |
| 126 |
_mcrypt_get_size = lt_dlsym(s, "_mcrypt_get_size"); |
| 127 |
if ((error = lt_dlerror())) { |
| 128 |
fputs(error, stderr); |
| 129 |
fputs("\n", stderr); |
| 130 |
return MCRYPT_UNKNOWN_ERROR; |
| 131 |
} |
| 132 |
return _mcrypt_get_size(); |
| 133 |
} |
| 134 |
|
| 135 |
int mcrypt_mode_get_size(MCRYPT td) |
| 136 |
{ |
| 137 |
int (*_mcrypt_get_size) (void); |
| 138 |
|
| 139 |
const char *error; |
| 140 |
char *s; |
| 141 |
|
| 142 |
s = td->mode_handle; |
| 143 |
_mcrypt_get_size = lt_dlsym(s, "_mcrypt_mode_get_size"); |
| 144 |
if ((error = lt_dlerror())) { |
| 145 |
fputs(error, stderr); |
| 146 |
fputs("\n", stderr); |
| 147 |
return MCRYPT_UNKNOWN_ERROR; |
| 148 |
} |
| 149 |
return _mcrypt_get_size(); |
| 150 |
} |
| 151 |
|
| 152 |
void mcrypt_set_key(MCRYPT td, void *a, void *b, int c, void *d, int e) |
| 153 |
{ |
| 154 |
void (*__mcrypt_set_key_stream) (void *, void *, int, void *, int); |
| 155 |
void (*__mcrypt_set_key_block) (void *, void *, int); |
| 156 |
const char *error; |
| 157 |
char *s; |
| 158 |
|
| 159 |
s = td->algorithm_handle; |
| 160 |
if (mcrypt_enc_is_block_algorithm(td) == 0) { |
| 161 |
/* stream */ |
| 162 |
__mcrypt_set_key_stream = lt_dlsym(s, "_mcrypt_set_key"); |
| 163 |
if ((error = lt_dlerror())) { |
| 164 |
fputs(error, stderr); |
| 165 |
fputs("\n", stderr); |
| 166 |
return; |
| 167 |
} |
| 168 |
__mcrypt_set_key_stream(a, b, c, d, e); |
| 169 |
} else { |
| 170 |
__mcrypt_set_key_block = lt_dlsym(s, "_mcrypt_set_key"); |
| 171 |
if ((error = lt_dlerror())) { |
| 172 |
fputs(error, stderr); |
| 173 |
fputs("\n", stderr); |
| 174 |
return; |
| 175 |
} |
| 176 |
__mcrypt_set_key_block(a, b, c); |
| 177 |
} |
| 178 |
} |
| 179 |
|
| 180 |
|
| 181 |
int mcrypt_enc_get_block_size(MCRYPT td) |
| 182 |
{ |
| 183 |
int (*_mcrypt_get_block_size) (void); |
| 184 |
|
| 185 |
_mcrypt_get_block_size = td->a_block_size; |
| 186 |
return _mcrypt_get_block_size(); |
| 187 |
} |
| 188 |
|
| 189 |
|
| 190 |
int mcrypt_get_algo_iv_size(MCRYPT td) |
| 191 |
{ |
| 192 |
int (*_mcrypt_get_algo_iv_size) (void); |
| 193 |
char *s; |
| 194 |
|
| 195 |
s = td->algorithm_handle; |
| 196 |
|
| 197 |
_mcrypt_get_algo_iv_size = lt_dlsym(s, "_mcrypt_get_algo_iv_size"); |
| 198 |
return _mcrypt_get_algo_iv_size(); |
| 199 |
} |
| 200 |
|
| 201 |
|
| 202 |
int mcrypt_enc_get_iv_size(MCRYPT td) |
| 203 |
{ |
| 204 |
if (mcrypt_enc_is_block_algorithm_mode(td) == 1) { |
| 205 |
return mcrypt_enc_get_block_size(td); |
| 206 |
} else { |
| 207 |
return mcrypt_get_algo_iv_size(td); |
| 208 |
} |
| 209 |
} |
| 210 |
|
| 211 |
int mcrypt_enc_get_key_size(MCRYPT td) |
| 212 |
{ |
| 213 |
int (*_mcrypt_get_key_size) (void); |
| 214 |
char *s; |
| 215 |
|
| 216 |
s = td->algorithm_handle; |
| 217 |
|
| 218 |
_mcrypt_get_key_size = lt_dlsym(s, "_mcrypt_get_key_size"); |
| 219 |
return _mcrypt_get_key_size(); |
| 220 |
} |
| 221 |
|
| 222 |
|
| 223 |
int *mcrypt_enc_get_supported_key_sizes(MCRYPT td, int *len) |
| 224 |
{ |
| 225 |
int *(*_mcrypt_get_key_sizes) (int *); |
| 226 |
char *s; |
| 227 |
int *size; |
| 228 |
|
| 229 |
s = td->algorithm_handle; |
| 230 |
|
| 231 |
_mcrypt_get_key_sizes = |
| 232 |
lt_dlsym(s, "_mcrypt_get_supported_key_sizes"); |
| 233 |
size = _mcrypt_get_key_sizes(len); |
| 234 |
|
| 235 |
return size; |
| 236 |
} |
| 237 |
|
| 238 |
|
| 239 |
int mcrypt_enc_is_block_algorithm(MCRYPT td) |
| 240 |
{ |
| 241 |
int (*_is_block_algorithm) (void); |
| 242 |
char *s; |
| 243 |
|
| 244 |
s = td->algorithm_handle; |
| 245 |
|
| 246 |
_is_block_algorithm = lt_dlsym(s, "_is_block_algorithm"); |
| 247 |
return _is_block_algorithm(); |
| 248 |
} |
| 249 |
|
| 250 |
|
| 251 |
char *mcrypt_enc_get_algorithms_name(MCRYPT td) |
| 252 |
{ |
| 253 |
char *(*_mcrypt_get_algorithms_name) (void); |
| 254 |
char *s; |
| 255 |
|
| 256 |
s = td->algorithm_handle; |
| 257 |
|
| 258 |
_mcrypt_get_algorithms_name = |
| 259 |
lt_dlsym(s, "_mcrypt_get_algorithms_name"); |
| 260 |
return _mcrypt_get_algorithms_name(); |
| 261 |
} |
| 262 |
|
| 263 |
void mcrypt_block_encrypt(MCRYPT td, void *b) |
| 264 |
{ |
| 265 |
void (*_mcrypt_block_encrypt) (void *, void *); |
| 266 |
char *a; |
| 267 |
|
| 268 |
a = td->akey; |
| 269 |
_mcrypt_block_encrypt = td->a_encrypt; |
| 270 |
|
| 271 |
_mcrypt_block_encrypt(a, b); |
| 272 |
} |
| 273 |
|
| 274 |
void mcrypt_block_decrypt(MCRYPT td, void *b) |
| 275 |
{ |
| 276 |
void (*_mcrypt_block_decrypt) (void *, void *); |
| 277 |
char *a; |
| 278 |
|
| 279 |
a = td->akey; |
| 280 |
_mcrypt_block_decrypt = td->a_decrypt; |
| 281 |
_mcrypt_block_decrypt(a, b); |
| 282 |
} |
| 283 |
|
| 284 |
void mcrypt_stream_encrypt(MCRYPT td, void *b, int c) |
| 285 |
{ |
| 286 |
void (*_mcrypt_stream_encrypt) (void *, void *, int); |
| 287 |
char *a; |
| 288 |
|
| 289 |
a = td->akey; |
| 290 |
_mcrypt_stream_encrypt = td->a_encrypt; |
| 291 |
_mcrypt_stream_encrypt(a, b, c); |
| 292 |
} |
| 293 |
|
| 294 |
void mcrypt_stream_decrypt(MCRYPT td, void *b, int c) |
| 295 |
{ |
| 296 |
void (*_mcrypt_stream_decrypt) (void *, void *, int); |
| 297 |
char *a; |
| 298 |
|
| 299 |
a = td->akey; |
| 300 |
_mcrypt_stream_decrypt = td->a_decrypt; |
| 301 |
_mcrypt_stream_decrypt(a, b, c); |
| 302 |
} |
| 303 |
|
| 304 |
int init_mcrypt(MCRYPT td, void *buf, void *a, int b, void *c) |
| 305 |
{ |
| 306 |
int (*_init_mcrypt) (void *, void *, int, void *, int); |
| 307 |
char *s; |
| 308 |
|
| 309 |
s = td->mode_handle; |
| 310 |
_init_mcrypt = lt_dlsym(s, "_init_mcrypt"); |
| 311 |
return _init_mcrypt(buf, a, b, c, mcrypt_enc_get_block_size(td)); |
| 312 |
} |
| 313 |
|
| 314 |
int end_mcrypt(MCRYPT td, void *buf) |
| 315 |
{ |
| 316 |
int (*_end_mcrypt) (void *); |
| 317 |
char *s; |
| 318 |
|
| 319 |
s = td->mode_handle; |
| 320 |
_end_mcrypt = lt_dlsym(s, "_end_mcrypt"); |
| 321 |
return _end_mcrypt(buf); |
| 322 |
} |
| 323 |
|
| 324 |
int mcrypt(MCRYPT td, void *buf, void *a, int b) |
| 325 |
{ |
| 326 |
int (*_mcrypt) (void *, void *, int, int, void *, void *, void*); |
| 327 |
_mcrypt = td->m_encrypt; |
| 328 |
|
| 329 |
return _mcrypt(buf, a, b, mcrypt_enc_get_block_size(td), td->akey, |
| 330 |
td->a_encrypt, td->a_decrypt); |
| 331 |
} |
| 332 |
|
| 333 |
int mdecrypt(MCRYPT td, void *buf, void *a, int b) |
| 334 |
{ |
| 335 |
int (*_mdecrypt) (void *, void *, int, int, void *, void *, void*); |
| 336 |
|
| 337 |
_mdecrypt = td->m_decrypt; |
| 338 |
return _mdecrypt(buf, a, b, mcrypt_enc_get_block_size(td), |
| 339 |
td->akey, td->a_encrypt, td->a_decrypt); |
| 340 |
} |
| 341 |
|
| 342 |
|
| 343 |
char *mcrypt_enc_get_modes_name(MCRYPT td) |
| 344 |
{ |
| 345 |
char *(*_mcrypt_get_modes_name) (void); |
| 346 |
char *s; |
| 347 |
|
| 348 |
s = td->mode_handle; |
| 349 |
|
| 350 |
_mcrypt_get_modes_name = lt_dlsym(s, "_mcrypt_get_modes_name"); |
| 351 |
return _mcrypt_get_modes_name(); |
| 352 |
} |
| 353 |
|
| 354 |
|
| 355 |
int mcrypt_enc_is_block_mode(MCRYPT td) |
| 356 |
{ |
| 357 |
int (*_is_block_mode) (void); |
| 358 |
char *s; |
| 359 |
|
| 360 |
s = td->mode_handle; |
| 361 |
|
| 362 |
_is_block_mode = lt_dlsym(s, "_is_block_mode"); |
| 363 |
return _is_block_mode(); |
| 364 |
} |
| 365 |
|
| 366 |
int mcrypt_enc_mode_has_iv(MCRYPT td) |
| 367 |
{ |
| 368 |
int (*_has_iv) (void); |
| 369 |
char *s; |
| 370 |
|
| 371 |
s = td->mode_handle; |
| 372 |
|
| 373 |
_has_iv = lt_dlsym(s, "_has_iv"); |
| 374 |
return _has_iv(); |
| 375 |
} |
| 376 |
|
| 377 |
|
| 378 |
int mcrypt_enc_is_block_algorithm_mode(MCRYPT td) |
| 379 |
{ |
| 380 |
int (*_is_a_block_mode) (void); |
| 381 |
char *s; |
| 382 |
|
| 383 |
s = td->mode_handle; |
| 384 |
|
| 385 |
_is_a_block_mode = lt_dlsym(s, "_is_block_algorithm_mode"); |
| 386 |
return _is_a_block_mode(); |
| 387 |
} |
| 388 |
|
| 389 |
|
| 390 |
int mcrypt_enc_self_test(MCRYPT td) |
| 391 |
{ |
| 392 |
int (*_self_test) (void); |
| 393 |
char *s; |
| 394 |
|
| 395 |
s = td->algorithm_handle; |
| 396 |
|
| 397 |
_self_test = lt_dlsym(s, "_mcrypt_self_test"); |
| 398 |
|
| 399 |
return _self_test(); |
| 400 |
} |
| 401 |
|
| 402 |
|
| 403 |
int mcrypt_module_self_test(char *algorithm, char *a_directory) |
| 404 |
{ |
| 405 |
int i; |
| 406 |
lt_dlhandle *_handle; |
| 407 |
int (*_self_test) (void); |
| 408 |
|
| 409 |
|
| 410 |
|
| 411 |
if (lt_dlinit() != 0) { |
| 412 |
return MCRYPT_UNKNOWN_ERROR; |
| 413 |
} |
| 414 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 415 |
if (a_directory != NULL) { |
| 416 |
lt_dlsetsearchpath(a_directory); |
| 417 |
} else { |
| 418 |
lt_dladdsearchdir(LIBDIR); |
| 419 |
} |
| 420 |
|
| 421 |
_handle = lt_dlopenext(algorithm); |
| 422 |
|
| 423 |
if (!_handle) { |
| 424 |
fputs(lt_dlerror(), stderr); |
| 425 |
fputs("\n", stderr); |
| 426 |
return MCRYPT_UNKNOWN_ERROR; |
| 427 |
} |
| 428 |
|
| 429 |
_self_test = lt_dlsym(_handle, "_mcrypt_self_test"); |
| 430 |
|
| 431 |
i = _self_test(); |
| 432 |
|
| 433 |
lt_dlclose(_handle); |
| 434 |
lt_dlexit(); |
| 435 |
return i; |
| 436 |
} |
| 437 |
|
| 438 |
int mcrypt_module_algorithm_version(char *algorithm, char *a_directory) |
| 439 |
{ |
| 440 |
int i; |
| 441 |
lt_dlhandle _handle; |
| 442 |
int (*_version) (void); |
| 443 |
|
| 444 |
if (lt_dlinit() != 0) { |
| 445 |
return MCRYPT_UNKNOWN_ERROR; |
| 446 |
} |
| 447 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 448 |
if (a_directory != NULL) { |
| 449 |
lt_dlsetsearchpath(a_directory); |
| 450 |
} else { |
| 451 |
lt_dladdsearchdir(LIBDIR); |
| 452 |
} |
| 453 |
|
| 454 |
_handle = lt_dlopenext(algorithm); |
| 455 |
if (!_handle) { |
| 456 |
fputs(lt_dlerror(), stderr); |
| 457 |
fputs("\n", stderr); |
| 458 |
return MCRYPT_UNKNOWN_ERROR; |
| 459 |
} |
| 460 |
|
| 461 |
_version = lt_dlsym(_handle, "_mcrypt_algorithm_version"); |
| 462 |
|
| 463 |
i = _version(); |
| 464 |
|
| 465 |
lt_dlclose(_handle); |
| 466 |
lt_dlexit(); |
| 467 |
|
| 468 |
return i; |
| 469 |
} |
| 470 |
|
| 471 |
int mcrypt_module_mode_version(char *mode, char *m_directory) |
| 472 |
{ |
| 473 |
int i; |
| 474 |
lt_dlhandle *_handle; |
| 475 |
int (*_version) (void); |
| 476 |
|
| 477 |
if (lt_dlinit() != 0) { |
| 478 |
return MCRYPT_UNKNOWN_ERROR; |
| 479 |
} |
| 480 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 481 |
if (m_directory != NULL) { |
| 482 |
lt_dlsetsearchpath(m_directory); |
| 483 |
} else { |
| 484 |
lt_dladdsearchdir(LIBDIR); |
| 485 |
} |
| 486 |
|
| 487 |
_handle = lt_dlopenext(mode); |
| 488 |
if (!_handle) { |
| 489 |
fputs(lt_dlerror(), stderr); |
| 490 |
fputs("\n", stderr); |
| 491 |
return MCRYPT_UNKNOWN_ERROR; |
| 492 |
} |
| 493 |
|
| 494 |
_version = lt_dlsym(_handle, "_mcrypt_mode_version"); |
| 495 |
|
| 496 |
i = _version(); |
| 497 |
|
| 498 |
lt_dlclose(_handle); |
| 499 |
lt_dlexit(); |
| 500 |
|
| 501 |
return i; |
| 502 |
} |
| 503 |
|
| 504 |
|
| 505 |
int mcrypt_module_is_block_algorithm(char *algorithm, char *a_directory) |
| 506 |
{ |
| 507 |
int i; |
| 508 |
lt_dlhandle _handle; |
| 509 |
int (*_is_block_algorithm) (void); |
| 510 |
|
| 511 |
if (lt_dlinit() != 0) { |
| 512 |
return MCRYPT_UNKNOWN_ERROR; |
| 513 |
} |
| 514 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 515 |
if (a_directory != NULL) { |
| 516 |
lt_dlsetsearchpath(a_directory); |
| 517 |
} else { |
| 518 |
lt_dladdsearchdir(LIBDIR); |
| 519 |
} |
| 520 |
|
| 521 |
_handle = lt_dlopenext(algorithm); |
| 522 |
if (!_handle) { |
| 523 |
fputs(lt_dlerror(), stderr); |
| 524 |
fputs("\n", stderr); |
| 525 |
return MCRYPT_UNKNOWN_ERROR; |
| 526 |
} |
| 527 |
|
| 528 |
_is_block_algorithm = lt_dlsym(_handle, "_is_block_algorithm"); |
| 529 |
|
| 530 |
i = _is_block_algorithm(); |
| 531 |
|
| 532 |
lt_dlclose(_handle); |
| 533 |
lt_dlexit(); |
| 534 |
|
| 535 |
return i; |
| 536 |
} |
| 537 |
|
| 538 |
|
| 539 |
int mcrypt_module_is_block_algorithm_mode(char *mode, char *m_directory) |
| 540 |
{ |
| 541 |
int i; |
| 542 |
lt_dlhandle *_handle; |
| 543 |
int (*_is_a_block_mode) (void); |
| 544 |
|
| 545 |
if (lt_dlinit() != 0) { |
| 546 |
return MCRYPT_UNKNOWN_ERROR; |
| 547 |
} |
| 548 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 549 |
if (m_directory != NULL) { |
| 550 |
lt_dlsetsearchpath(m_directory); |
| 551 |
} else { |
| 552 |
lt_dladdsearchdir(LIBDIR); |
| 553 |
} |
| 554 |
|
| 555 |
_handle = lt_dlopenext(mode); |
| 556 |
if (!_handle) { |
| 557 |
fputs(lt_dlerror(), stderr); |
| 558 |
fputs("\n", stderr); |
| 559 |
return MCRYPT_UNKNOWN_ERROR; |
| 560 |
} |
| 561 |
|
| 562 |
_is_a_block_mode = lt_dlsym(_handle, "_is_block_algorithm_mode"); |
| 563 |
|
| 564 |
i = _is_a_block_mode(); |
| 565 |
|
| 566 |
lt_dlclose(_handle); |
| 567 |
lt_dlexit(); |
| 568 |
|
| 569 |
return i; |
| 570 |
} |
| 571 |
|
| 572 |
|
| 573 |
int mcrypt_module_is_block_mode(char *mode, char *m_directory) |
| 574 |
{ |
| 575 |
int i; |
| 576 |
lt_dlhandle *_handle; |
| 577 |
int (*_is_block_mode) (void); |
| 578 |
|
| 579 |
|
| 580 |
if (lt_dlinit() != 0) { |
| 581 |
return MCRYPT_UNKNOWN_ERROR; |
| 582 |
} |
| 583 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 584 |
if (m_directory != NULL) { |
| 585 |
lt_dlsetsearchpath(m_directory); |
| 586 |
} else { |
| 587 |
lt_dladdsearchdir(LIBDIR); |
| 588 |
} |
| 589 |
|
| 590 |
_handle = lt_dlopenext(mode); |
| 591 |
if (!_handle) { |
| 592 |
fputs(lt_dlerror(), stderr); |
| 593 |
fputs("\n", stderr); |
| 594 |
return MCRYPT_UNKNOWN_ERROR; |
| 595 |
} |
| 596 |
|
| 597 |
_is_block_mode = lt_dlsym(_handle, "_is_block_mode"); |
| 598 |
|
| 599 |
i = _is_block_mode(); |
| 600 |
|
| 601 |
lt_dlclose(_handle); |
| 602 |
lt_dlexit(); |
| 603 |
|
| 604 |
return i; |
| 605 |
} |
| 606 |
|
| 607 |
int mcrypt_module_get_algo_block_size(char *algorithm, char *a_directory) |
| 608 |
{ |
| 609 |
int i; |
| 610 |
lt_dlhandle _handle; |
| 611 |
int (*_get_block_size) (void); |
| 612 |
|
| 613 |
if (lt_dlinit() != 0) { |
| 614 |
return MCRYPT_UNKNOWN_ERROR; |
| 615 |
} |
| 616 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 617 |
if (a_directory != NULL) { |
| 618 |
lt_dlsetsearchpath(a_directory); |
| 619 |
} else { |
| 620 |
lt_dladdsearchdir(LIBDIR); |
| 621 |
} |
| 622 |
|
| 623 |
_handle = lt_dlopenext(algorithm); |
| 624 |
if (!_handle) { |
| 625 |
fputs(lt_dlerror(), stderr); |
| 626 |
fputs("\n", stderr); |
| 627 |
return MCRYPT_UNKNOWN_ERROR; |
| 628 |
} |
| 629 |
|
| 630 |
_get_block_size = lt_dlsym(_handle, "_mcrypt_get_block_size"); |
| 631 |
|
| 632 |
i = _get_block_size(); |
| 633 |
|
| 634 |
lt_dlclose(_handle); |
| 635 |
lt_dlexit(); |
| 636 |
|
| 637 |
return i; |
| 638 |
} |
| 639 |
|
| 640 |
int mcrypt_module_get_algo_key_size(char *algorithm, char *a_directory) |
| 641 |
{ |
| 642 |
int i; |
| 643 |
lt_dlhandle _handle; |
| 644 |
int (*_get_key_size) (void); |
| 645 |
|
| 646 |
if (lt_dlinit() != 0) { |
| 647 |
return MCRYPT_UNKNOWN_ERROR; |
| 648 |
} |
| 649 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 650 |
if (a_directory != NULL) { |
| 651 |
lt_dlsetsearchpath(a_directory); |
| 652 |
} else { |
| 653 |
lt_dladdsearchdir(LIBDIR); |
| 654 |
} |
| 655 |
|
| 656 |
_handle = lt_dlopenext(algorithm); |
| 657 |
if (!_handle) { |
| 658 |
fputs(lt_dlerror(), stderr); |
| 659 |
fputs("\n", stderr); |
| 660 |
return MCRYPT_UNKNOWN_ERROR; |
| 661 |
} |
| 662 |
|
| 663 |
_get_key_size = lt_dlsym(_handle, "_mcrypt_get_key_size"); |
| 664 |
|
| 665 |
i = _get_key_size(); |
| 666 |
|
| 667 |
lt_dlclose(_handle); |
| 668 |
lt_dlexit(); |
| 669 |
|
| 670 |
return i; |
| 671 |
} |
| 672 |
|
| 673 |
|
| 674 |
int *mcrypt_module_get_algo_supported_key_sizes(char *algorithm, |
| 675 |
char *a_directory, |
| 676 |
int *len) |
| 677 |
{ |
| 678 |
lt_dlhandle _handle; |
| 679 |
int *(*_mcrypt_get_key_sizes) (int *); |
| 680 |
int *size; |
| 681 |
|
| 682 |
if (lt_dlinit() != 0) { |
| 683 |
*len = 0; |
| 684 |
return NULL; |
| 685 |
} |
| 686 |
/* LTDL_SET_PRELOADED_SYMBOLS(); */ |
| 687 |
if (a_directory != NULL) { |
| 688 |
lt_dlsetsearchpath(a_directory); |
| 689 |
} else { |
| 690 |
lt_dladdsearchdir(LIBDIR); |
| 691 |
} |
| 692 |
|
| 693 |
_handle = lt_dlopenext(algorithm); |
| 694 |
if (!_handle) { |
| 695 |
fputs(lt_dlerror(), stderr); |
| 696 |
fputs("\n", stderr); |
| 697 |
*len = 0; |
| 698 |
return NULL; |
| 699 |
} |
| 700 |
|
| 701 |
_mcrypt_get_key_sizes = |
| 702 |
lt_dlsym(_handle, "_mcrypt_get_supported_key_sizes"); |
| 703 |
|
| 704 |
size = _mcrypt_get_key_sizes(len); |
| 705 |
|
| 706 |
lt_dlclose(_handle); |
| 707 |
lt_dlexit(); |
| 708 |
|
| 709 |
return size; |
| 710 |
} |
Parent Directory
| 
Revision Log