1 /* $OpenBSD: openssl.c,v 1.2 2014/10/22 13:54:03 jsing Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 /* ==================================================================== 59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * openssl-core@openssl.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay@cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh@cryptsoft.com). 109 * 110 */ 111 112 #include <err.h> 113 #include <signal.h> 114 #include <stdio.h> 115 #include <string.h> 116 #include <stdlib.h> 117 118 #include "apps.h" 119 120 #include <openssl/bio.h> 121 #include <openssl/conf.h> 122 #include <openssl/crypto.h> 123 #include <openssl/err.h> 124 #include <openssl/lhash.h> 125 #include <openssl/pem.h> 126 #include <openssl/ssl.h> 127 #include <openssl/x509.h> 128 129 #ifndef OPENSSL_NO_ENGINE 130 #include <openssl/engine.h> 131 #endif 132 133 #include "progs.h" 134 #include "s_apps.h" 135 136 static void openssl_startup(void); 137 static void openssl_shutdown(void); 138 139 /* The LHASH callbacks ("hash" & "cmp") have been replaced by functions with the 140 * base prototypes (we cast each variable inside the function to the required 141 * type of "FUNCTION*"). This removes the necessity for macro-generated wrapper 142 * functions. */ 143 144 static LHASH_OF(FUNCTION) *prog_init(void); 145 static int do_cmd(LHASH_OF(FUNCTION) *prog, int argc, char *argv[]); 146 static void list_pkey(BIO * out); 147 static void list_cipher(BIO * out); 148 static void list_md(BIO * out); 149 char *default_config_file = NULL; 150 151 CONF *config = NULL; 152 BIO *bio_err = NULL; 153 154 static void 155 lock_dbg_cb(int mode, int type, const char *file, int line) 156 { 157 static int modes[CRYPTO_NUM_LOCKS]; /* = {0, 0, ... } */ 158 const char *errstr = NULL; 159 int rw; 160 161 rw = mode & (CRYPTO_READ | CRYPTO_WRITE); 162 if (!((rw == CRYPTO_READ) || (rw == CRYPTO_WRITE))) { 163 errstr = "invalid mode"; 164 goto err; 165 } 166 if (type < 0 || type >= CRYPTO_NUM_LOCKS) { 167 errstr = "type out of bounds"; 168 goto err; 169 } 170 if (mode & CRYPTO_LOCK) { 171 if (modes[type]) { 172 errstr = "already locked"; 173 /* 174 * must not happen in a single-threaded program 175 * (would deadlock) 176 */ 177 goto err; 178 } 179 modes[type] = rw; 180 } else if (mode & CRYPTO_UNLOCK) { 181 if (!modes[type]) { 182 errstr = "not locked"; 183 goto err; 184 } 185 if (modes[type] != rw) { 186 errstr = (rw == CRYPTO_READ) ? 187 "CRYPTO_r_unlock on write lock" : 188 "CRYPTO_w_unlock on read lock"; 189 } 190 modes[type] = 0; 191 } else { 192 errstr = "invalid mode"; 193 goto err; 194 } 195 196 err: 197 if (errstr) { 198 /* we cannot use bio_err here */ 199 fprintf(stderr, "openssl (lock_dbg_cb): %s (mode=%d, type=%d) at %s:%d\n", 200 errstr, mode, type, file, line); 201 } 202 } 203 204 static void 205 openssl_startup(void) 206 { 207 signal(SIGPIPE, SIG_IGN); 208 209 CRYPTO_malloc_init(); 210 OpenSSL_add_all_algorithms(); 211 SSL_library_init(); 212 SSL_load_error_strings(); 213 214 #ifndef OPENSSL_NO_ENGINE 215 ENGINE_load_builtin_engines(); 216 #endif 217 218 setup_ui_method(); 219 } 220 221 static void 222 openssl_shutdown(void) 223 { 224 CONF_modules_unload(1); 225 destroy_ui_method(); 226 OBJ_cleanup(); 227 EVP_cleanup(); 228 229 #ifndef OPENSSL_NO_ENGINE 230 ENGINE_cleanup(); 231 #endif 232 233 CRYPTO_cleanup_all_ex_data(); 234 ERR_remove_thread_state(NULL); 235 ERR_free_strings(); 236 } 237 238 int 239 main(int argc, char **argv) 240 { 241 ARGS arg; 242 #define PROG_NAME_SIZE 39 243 char pname[PROG_NAME_SIZE + 1]; 244 FUNCTION f, *fp; 245 const char *prompt; 246 char buf[1024]; 247 char *to_free = NULL; 248 int n, i, ret = 0; 249 char *p; 250 LHASH_OF(FUNCTION) * prog = NULL; 251 long errline; 252 253 arg.data = NULL; 254 arg.count = 0; 255 256 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 257 if (bio_err == NULL) { 258 fprintf(stderr, "openssl: failed to initialise bio_err\n"); 259 exit(1); 260 } 261 262 CRYPTO_set_locking_callback(lock_dbg_cb); 263 264 openssl_startup(); 265 266 /* Lets load up our environment a little */ 267 p = getenv("OPENSSL_CONF"); 268 if (p == NULL) 269 p = getenv("SSLEAY_CONF"); 270 if (p == NULL) { 271 p = to_free = make_config_name(); 272 if (p == NULL) { 273 BIO_printf(bio_err, "error making config file name\n"); 274 goto end; 275 } 276 } 277 278 default_config_file = p; 279 280 config = NCONF_new(NULL); 281 i = NCONF_load(config, p, &errline); 282 if (i == 0) { 283 if (ERR_GET_REASON(ERR_peek_last_error()) == 284 CONF_R_NO_SUCH_FILE) { 285 BIO_printf(bio_err, 286 "WARNING: can't open config file: %s\n", p); 287 ERR_clear_error(); 288 NCONF_free(config); 289 config = NULL; 290 } else { 291 ERR_print_errors(bio_err); 292 NCONF_free(config); 293 exit(1); 294 } 295 } 296 297 if (!load_config(bio_err, NULL)) { 298 BIO_printf(bio_err, "failed to load configuration\n"); 299 goto end; 300 } 301 302 prog = prog_init(); 303 304 /* first check the program name */ 305 program_name(argv[0], pname, sizeof pname); 306 307 f.name = pname; 308 fp = lh_FUNCTION_retrieve(prog, &f); 309 if (fp != NULL) { 310 argv[0] = pname; 311 ret = fp->func(argc, argv); 312 goto end; 313 } 314 /* 315 * ok, now check that there are not arguments, if there are, run with 316 * them, shifting the ssleay off the front 317 */ 318 if (argc != 1) { 319 argc--; 320 argv++; 321 ret = do_cmd(prog, argc, argv); 322 if (ret < 0) 323 ret = 0; 324 goto end; 325 } 326 /* ok, lets enter the old 'OpenSSL>' mode */ 327 328 for (;;) { 329 ret = 0; 330 p = buf; 331 n = sizeof buf; 332 i = 0; 333 for (;;) { 334 p[0] = '\0'; 335 if (i++) 336 prompt = ">"; 337 else 338 prompt = "OpenSSL> "; 339 fputs(prompt, stdout); 340 fflush(stdout); 341 if (!fgets(p, n, stdin)) 342 goto end; 343 if (p[0] == '\0') 344 goto end; 345 i = strlen(p); 346 if (i <= 1) 347 break; 348 if (p[i - 2] != '\\') 349 break; 350 i -= 2; 351 p += i; 352 n -= i; 353 } 354 if (!chopup_args(&arg, buf, &argc, &argv)) 355 break; 356 357 ret = do_cmd(prog, argc, argv); 358 if (ret < 0) { 359 ret = 0; 360 goto end; 361 } 362 if (ret != 0) 363 BIO_printf(bio_err, "error in %s\n", argv[0]); 364 (void) BIO_flush(bio_err); 365 } 366 BIO_printf(bio_err, "bad exit\n"); 367 ret = 1; 368 369 end: 370 free(to_free); 371 372 if (config != NULL) { 373 NCONF_free(config); 374 config = NULL; 375 } 376 if (prog != NULL) 377 lh_FUNCTION_free(prog); 378 free(arg.data); 379 380 openssl_shutdown(); 381 382 if (bio_err != NULL) { 383 BIO_free(bio_err); 384 bio_err = NULL; 385 } 386 return (ret); 387 } 388 389 #define LIST_STANDARD_COMMANDS "list-standard-commands" 390 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands" 391 #define LIST_MESSAGE_DIGEST_ALGORITHMS "list-message-digest-algorithms" 392 #define LIST_CIPHER_COMMANDS "list-cipher-commands" 393 #define LIST_CIPHER_ALGORITHMS "list-cipher-algorithms" 394 #define LIST_PUBLIC_KEY_ALGORITHMS "list-public-key-algorithms" 395 396 397 static int 398 do_cmd(LHASH_OF(FUNCTION) * prog, int argc, char *argv[]) 399 { 400 FUNCTION f, *fp; 401 int i, ret = 1, tp, nl; 402 403 if ((argc <= 0) || (argv[0] == NULL)) { 404 ret = 0; 405 goto end; 406 } 407 f.name = argv[0]; 408 fp = lh_FUNCTION_retrieve(prog, &f); 409 if (fp == NULL) { 410 if (EVP_get_digestbyname(argv[0])) { 411 f.type = FUNC_TYPE_MD; 412 f.func = dgst_main; 413 fp = &f; 414 } else if (EVP_get_cipherbyname(argv[0])) { 415 f.type = FUNC_TYPE_CIPHER; 416 f.func = enc_main; 417 fp = &f; 418 } 419 } 420 if (fp != NULL) { 421 ret = fp->func(argc, argv); 422 } else if ((strncmp(argv[0], "no-", 3)) == 0) { 423 BIO *bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE); 424 f.name = argv[0] + 3; 425 ret = (lh_FUNCTION_retrieve(prog, &f) != NULL); 426 if (!ret) 427 BIO_printf(bio_stdout, "%s\n", argv[0]); 428 else 429 BIO_printf(bio_stdout, "%s\n", argv[0] + 3); 430 BIO_free_all(bio_stdout); 431 goto end; 432 } else if ((strcmp(argv[0], "quit") == 0) || 433 (strcmp(argv[0], "q") == 0) || 434 (strcmp(argv[0], "exit") == 0) || 435 (strcmp(argv[0], "bye") == 0)) { 436 ret = -1; 437 goto end; 438 } else if ((strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0) || 439 (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0) || 440 (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0) || 441 (strcmp(argv[0], LIST_CIPHER_COMMANDS) == 0) || 442 (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0) || 443 (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0)) { 444 int list_type; 445 BIO *bio_stdout; 446 447 if (strcmp(argv[0], LIST_STANDARD_COMMANDS) == 0) 448 list_type = FUNC_TYPE_GENERAL; 449 else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_COMMANDS) == 0) 450 list_type = FUNC_TYPE_MD; 451 else if (strcmp(argv[0], LIST_MESSAGE_DIGEST_ALGORITHMS) == 0) 452 list_type = FUNC_TYPE_MD_ALG; 453 else if (strcmp(argv[0], LIST_PUBLIC_KEY_ALGORITHMS) == 0) 454 list_type = FUNC_TYPE_PKEY; 455 else if (strcmp(argv[0], LIST_CIPHER_ALGORITHMS) == 0) 456 list_type = FUNC_TYPE_CIPHER_ALG; 457 else /* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */ 458 list_type = FUNC_TYPE_CIPHER; 459 bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE); 460 461 if (list_type == FUNC_TYPE_PKEY) 462 list_pkey(bio_stdout); 463 if (list_type == FUNC_TYPE_MD_ALG) 464 list_md(bio_stdout); 465 if (list_type == FUNC_TYPE_CIPHER_ALG) 466 list_cipher(bio_stdout); 467 else { 468 for (fp = functions; fp->name != NULL; fp++) 469 if (fp->type == list_type) 470 BIO_printf(bio_stdout, "%s\n", 471 fp->name); 472 } 473 BIO_free_all(bio_stdout); 474 ret = 0; 475 goto end; 476 } else { 477 BIO_printf(bio_err, 478 "openssl:Error: '%s' is an invalid command.\n", 479 argv[0]); 480 BIO_printf(bio_err, "\nStandard commands"); 481 i = 0; 482 tp = 0; 483 for (fp = functions; fp->name != NULL; fp++) { 484 nl = 0; 485 #ifdef OPENSSL_NO_CAMELLIA 486 if (((i++) % 5) == 0) 487 #else 488 if (((i++) % 4) == 0) 489 #endif 490 { 491 BIO_printf(bio_err, "\n"); 492 nl = 1; 493 } 494 if (fp->type != tp) { 495 tp = fp->type; 496 if (!nl) 497 BIO_printf(bio_err, "\n"); 498 if (tp == FUNC_TYPE_MD) { 499 i = 1; 500 BIO_printf(bio_err, 501 "\nMessage Digest commands (see the `dgst' command for more details)\n"); 502 } else if (tp == FUNC_TYPE_CIPHER) { 503 i = 1; 504 BIO_printf(bio_err, "\nCipher commands (see the `enc' command for more details)\n"); 505 } 506 } 507 #ifdef OPENSSL_NO_CAMELLIA 508 BIO_printf(bio_err, "%-15s", fp->name); 509 #else 510 BIO_printf(bio_err, "%-18s", fp->name); 511 #endif 512 } 513 BIO_printf(bio_err, "\n\n"); 514 ret = 0; 515 } 516 end: 517 return (ret); 518 } 519 520 static int 521 SortFnByName(const void *_f1, const void *_f2) 522 { 523 const FUNCTION *f1 = _f1; 524 const FUNCTION *f2 = _f2; 525 526 if (f1->type != f2->type) 527 return f1->type - f2->type; 528 return strcmp(f1->name, f2->name); 529 } 530 531 static void 532 list_pkey(BIO * out) 533 { 534 int i; 535 536 for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) { 537 const EVP_PKEY_ASN1_METHOD *ameth; 538 int pkey_id, pkey_base_id, pkey_flags; 539 const char *pinfo, *pem_str; 540 ameth = EVP_PKEY_asn1_get0(i); 541 EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags, 542 &pinfo, &pem_str, ameth); 543 if (pkey_flags & ASN1_PKEY_ALIAS) { 544 BIO_printf(out, "Name: %s\n", 545 OBJ_nid2ln(pkey_id)); 546 BIO_printf(out, "\tType: Alias to %s\n", 547 OBJ_nid2ln(pkey_base_id)); 548 } else { 549 BIO_printf(out, "Name: %s\n", pinfo); 550 BIO_printf(out, "\tType: %s Algorithm\n", 551 pkey_flags & ASN1_PKEY_DYNAMIC ? 552 "External" : "Builtin"); 553 BIO_printf(out, "\tOID: %s\n", OBJ_nid2ln(pkey_id)); 554 if (pem_str == NULL) 555 pem_str = "(none)"; 556 BIO_printf(out, "\tPEM string: %s\n", pem_str); 557 } 558 559 } 560 } 561 562 static void 563 list_cipher_fn(const EVP_CIPHER * c, const char *from, const char *to, 564 void *arg) 565 { 566 if (c) 567 BIO_printf(arg, "%s\n", EVP_CIPHER_name(c)); 568 else { 569 if (!from) 570 from = "<undefined>"; 571 if (!to) 572 to = "<undefined>"; 573 BIO_printf(arg, "%s => %s\n", from, to); 574 } 575 } 576 577 static void 578 list_cipher(BIO * out) 579 { 580 EVP_CIPHER_do_all_sorted(list_cipher_fn, out); 581 } 582 583 static void 584 list_md_fn(const EVP_MD * m, const char *from, const char *to, void *arg) 585 { 586 if (m) 587 BIO_printf(arg, "%s\n", EVP_MD_name(m)); 588 else { 589 if (!from) 590 from = "<undefined>"; 591 if (!to) 592 to = "<undefined>"; 593 BIO_printf(arg, "%s => %s\n", from, to); 594 } 595 } 596 597 static void 598 list_md(BIO * out) 599 { 600 EVP_MD_do_all_sorted(list_md_fn, out); 601 } 602 603 static int 604 function_cmp(const FUNCTION * a, const FUNCTION * b) 605 { 606 return strncmp(a->name, b->name, 8); 607 } 608 609 static IMPLEMENT_LHASH_COMP_FN(function, FUNCTION) 610 611 static unsigned long 612 function_hash(const FUNCTION * a) 613 { 614 return lh_strhash(a->name); 615 } 616 617 static IMPLEMENT_LHASH_HASH_FN(function, FUNCTION) 618 619 static LHASH_OF(FUNCTION) * 620 prog_init(void) 621 { 622 LHASH_OF(FUNCTION) * ret; 623 FUNCTION *f; 624 size_t i; 625 626 /* Purely so it looks nice when the user hits ? */ 627 for (i = 0, f = functions; f->name != NULL; ++f, ++i) 628 ; 629 qsort(functions, i, sizeof *functions, SortFnByName); 630 631 if ((ret = lh_FUNCTION_new()) == NULL) 632 return (NULL); 633 634 for (f = functions; f->name != NULL; f++) 635 (void) lh_FUNCTION_insert(ret, f); 636 return (ret); 637 } 638