s_client.c revision 1.6.2.4.2.1
1 /* apps/s_client.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh (at) cryptsoft.com). 109 * 110 */ 111 /* ==================================================================== 112 * Copyright 2005 Nokia. All rights reserved. 113 * 114 * The portions of the attached software ("Contribution") is developed by 115 * Nokia Corporation and is licensed pursuant to the OpenSSL open source 116 * license. 117 * 118 * The Contribution, originally written by Mika Kousa and Pasi Eronen of 119 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites 120 * support (see RFC 4279) to OpenSSL. 121 * 122 * No patent licenses or other rights except those expressly stated in 123 * the OpenSSL open source license shall be deemed granted or received 124 * expressly, by implication, estoppel, or otherwise. 125 * 126 * No assurances are provided by Nokia that the Contribution does not 127 * infringe the patent or other intellectual property rights of any third 128 * party or that the license provides you with all the necessary rights 129 * to make use of the Contribution. 130 * 131 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN 132 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA 133 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY 134 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR 135 * OTHERWISE. 136 */ 137 138 #include <assert.h> 139 #include <ctype.h> 140 #include <stdio.h> 141 #include <stdlib.h> 142 #include <string.h> 143 #include <openssl/e_os2.h> 144 #ifdef OPENSSL_NO_STDIO 145 # define APPS_WIN16 146 #endif 147 148 /* 149 * With IPv6, it looks like Digital has mixed up the proper order of 150 * recursive header file inclusion, resulting in the compiler complaining 151 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is 152 * needed to have fileno() declared correctly... So let's define u_int 153 */ 154 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) 155 # define __U_INT 156 typedef unsigned int u_int; 157 #endif 158 159 #define USE_SOCKETS 160 #include "apps.h" 161 #include <openssl/x509.h> 162 #include <openssl/ssl.h> 163 #include <openssl/err.h> 164 #include <openssl/pem.h> 165 #include <openssl/rand.h> 166 #include <openssl/ocsp.h> 167 #include <openssl/bn.h> 168 #ifndef OPENSSL_NO_SRP 169 # include <openssl/srp.h> 170 #endif 171 #include "s_apps.h" 172 #include "timeouts.h" 173 174 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000) 175 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ 176 # undef FIONBIO 177 #endif 178 179 #if defined(OPENSSL_SYS_BEOS_R5) 180 # include <fcntl.h> 181 #endif 182 183 #undef PROG 184 #define PROG s_client_main 185 186 /* 187 * #define SSL_HOST_NAME "www.netscape.com" 188 */ 189 /* 190 * #define SSL_HOST_NAME "193.118.187.102" 191 */ 192 #define SSL_HOST_NAME "localhost" 193 194 /* no default cert. */ 195 /* 196 * #define TEST_CERT "client.pem" 197 */ 198 199 #undef BUFSIZZ 200 #define BUFSIZZ 1024*8 201 202 extern int verify_depth; 203 extern int verify_error; 204 extern int verify_return_error; 205 206 #ifdef FIONBIO 207 static int c_nbio = 0; 208 #endif 209 static int c_Pause = 0; 210 static int c_debug = 0; 211 #ifndef OPENSSL_NO_TLSEXT 212 static int c_tlsextdebug = 0; 213 static int c_status_req = 0; 214 #endif 215 static int c_msg = 0; 216 static int c_showcerts = 0; 217 218 static char *keymatexportlabel = NULL; 219 static int keymatexportlen = 20; 220 221 static void sc_usage(void); 222 static void print_stuff(BIO *berr, SSL *con, int full); 223 #ifndef OPENSSL_NO_TLSEXT 224 static int ocsp_resp_cb(SSL *s, void *arg); 225 #endif 226 static BIO *bio_c_out = NULL; 227 static int c_quiet = 0; 228 static int c_ign_eof = 0; 229 230 #ifndef OPENSSL_NO_PSK 231 /* Default PSK identity and key */ 232 static char *psk_identity = "Client_identity"; 233 /* 234 * char *psk_key=NULL; by default PSK is not used 235 */ 236 237 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, 238 unsigned int max_identity_len, 239 unsigned char *psk, 240 unsigned int max_psk_len) 241 { 242 unsigned int psk_len = 0; 243 int ret; 244 BIGNUM *bn = NULL; 245 246 if (c_debug) 247 BIO_printf(bio_c_out, "psk_client_cb\n"); 248 if (!hint) { 249 /* no ServerKeyExchange message */ 250 if (c_debug) 251 BIO_printf(bio_c_out, 252 "NULL received PSK identity hint, continuing anyway\n"); 253 } else if (c_debug) 254 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); 255 256 /* 257 * lookup PSK identity and PSK key based on the given identity hint here 258 */ 259 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity); 260 if (ret < 0 || (unsigned int)ret > max_identity_len) 261 goto out_err; 262 if (c_debug) 263 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, 264 ret); 265 ret = BN_hex2bn(&bn, psk_key); 266 if (!ret) { 267 BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n", 268 psk_key); 269 if (bn) 270 BN_free(bn); 271 return 0; 272 } 273 274 if ((unsigned int)BN_num_bytes(bn) > max_psk_len) { 275 BIO_printf(bio_err, 276 "psk buffer of callback is too small (%d) for key (%d)\n", 277 max_psk_len, BN_num_bytes(bn)); 278 BN_free(bn); 279 return 0; 280 } 281 282 psk_len = BN_bn2bin(bn, psk); 283 BN_free(bn); 284 if (psk_len == 0) 285 goto out_err; 286 287 if (c_debug) 288 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len); 289 290 return psk_len; 291 out_err: 292 if (c_debug) 293 BIO_printf(bio_err, "Error in PSK client callback\n"); 294 return 0; 295 } 296 #endif 297 298 static void sc_usage(void) 299 { 300 BIO_printf(bio_err, "usage: s_client args\n"); 301 BIO_printf(bio_err, "\n"); 302 BIO_printf(bio_err, " -host host - use -connect instead\n"); 303 BIO_printf(bio_err, " -port port - use -connect instead\n"); 304 BIO_printf(bio_err, 305 " -connect host:port - who to connect to (default is %s:%s)\n", 306 SSL_HOST_NAME, PORT_STR); 307 308 BIO_printf(bio_err, 309 " -verify arg - turn on peer certificate verification\n"); 310 BIO_printf(bio_err, 311 " -verify_return_error - return verification errors\n"); 312 BIO_printf(bio_err, 313 " -cert arg - certificate file to use, PEM format assumed\n"); 314 BIO_printf(bio_err, 315 " -certform arg - certificate format (PEM or DER) PEM default\n"); 316 BIO_printf(bio_err, 317 " -key arg - Private key file to use, in cert file if\n"); 318 BIO_printf(bio_err, " not specified but cert file is.\n"); 319 BIO_printf(bio_err, 320 " -keyform arg - key format (PEM or DER) PEM default\n"); 321 BIO_printf(bio_err, 322 " -pass arg - private key file pass phrase source\n"); 323 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n"); 324 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n"); 325 BIO_printf(bio_err, 326 " -no_alt_chains - only ever use the first certificate chain found\n"); 327 BIO_printf(bio_err, 328 " -reconnect - Drop and re-make the connection with the same Session-ID\n"); 329 BIO_printf(bio_err, 330 " -pause - sleep(1) after each read(2) and write(2) system call\n"); 331 BIO_printf(bio_err, 332 " -prexit - print session information even on connection failure\n"); 333 BIO_printf(bio_err, 334 " -showcerts - show all certificates in the chain\n"); 335 BIO_printf(bio_err, " -debug - extra output\n"); 336 #ifdef WATT32 337 BIO_printf(bio_err, " -wdebug - WATT-32 tcp debugging\n"); 338 #endif 339 BIO_printf(bio_err, " -msg - Show protocol messages\n"); 340 BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n"); 341 BIO_printf(bio_err, " -state - print the 'ssl' states\n"); 342 #ifdef FIONBIO 343 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n"); 344 #endif 345 BIO_printf(bio_err, 346 " -crlf - convert LF from terminal into CRLF\n"); 347 BIO_printf(bio_err, " -quiet - no s_client output\n"); 348 BIO_printf(bio_err, 349 " -ign_eof - ignore input eof (default when -quiet)\n"); 350 BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n"); 351 #ifndef OPENSSL_NO_PSK 352 BIO_printf(bio_err, " -psk_identity arg - PSK identity\n"); 353 BIO_printf(bio_err, " -psk arg - PSK in hex (without 0x)\n"); 354 # ifndef OPENSSL_NO_JPAKE 355 BIO_printf(bio_err, " -jpake arg - JPAKE secret to use\n"); 356 # endif 357 #endif 358 #ifndef OPENSSL_NO_SRP 359 BIO_printf(bio_err, 360 " -srpuser user - SRP authentification for 'user'\n"); 361 BIO_printf(bio_err, " -srppass arg - password for 'user'\n"); 362 BIO_printf(bio_err, 363 " -srp_lateuser - SRP username into second ClientHello message\n"); 364 BIO_printf(bio_err, 365 " -srp_moregroups - Tolerate other than the known g N values.\n"); 366 BIO_printf(bio_err, 367 " -srp_strength int - minimal length in bits for N (default %d).\n", 368 SRP_MINIMAL_N); 369 #endif 370 BIO_printf(bio_err, " -ssl2 - just use SSLv2\n"); 371 #ifndef OPENSSL_NO_SSL3_METHOD 372 BIO_printf(bio_err, " -ssl3 - just use SSLv3\n"); 373 #endif 374 BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n"); 375 BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n"); 376 BIO_printf(bio_err, " -tls1 - just use TLSv1\n"); 377 BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n"); 378 BIO_printf(bio_err, " -fallback_scsv - send TLS_FALLBACK_SCSV\n"); 379 BIO_printf(bio_err, " -mtu - set the link layer MTU\n"); 380 BIO_printf(bio_err, 381 " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); 382 BIO_printf(bio_err, 383 " -bugs - Switch on all SSL implementation bug workarounds\n"); 384 BIO_printf(bio_err, 385 " -serverpref - Use server's cipher preferences (only SSLv2)\n"); 386 BIO_printf(bio_err, 387 " -cipher - preferred cipher to use, use the 'openssl ciphers'\n"); 388 BIO_printf(bio_err, 389 " command to see what is available\n"); 390 BIO_printf(bio_err, 391 " -starttls prot - use the STARTTLS command before starting TLS\n"); 392 BIO_printf(bio_err, 393 " for those protocols that support it, where\n"); 394 BIO_printf(bio_err, 395 " 'prot' defines which one to assume. Currently,\n"); 396 BIO_printf(bio_err, 397 " only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n"); 398 BIO_printf(bio_err, " are supported.\n"); 399 #ifndef OPENSSL_NO_ENGINE 400 BIO_printf(bio_err, 401 " -engine id - Initialise and use the specified engine\n"); 402 #endif 403 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, 404 LIST_SEPARATOR_CHAR); 405 BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n"); 406 BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n"); 407 #ifndef OPENSSL_NO_TLSEXT 408 BIO_printf(bio_err, 409 " -servername host - Set TLS extension servername in ClientHello\n"); 410 BIO_printf(bio_err, 411 " -tlsextdebug - hex dump of all TLS extensions received\n"); 412 BIO_printf(bio_err, 413 " -status - request certificate status from server\n"); 414 BIO_printf(bio_err, 415 " -no_ticket - disable use of RFC4507bis session tickets\n"); 416 # ifndef OPENSSL_NO_NEXTPROTONEG 417 BIO_printf(bio_err, 418 " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n"); 419 # endif 420 #endif 421 BIO_printf(bio_err, 422 " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n"); 423 #ifndef OPENSSL_NO_SRTP 424 BIO_printf(bio_err, 425 " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 426 #endif 427 BIO_printf(bio_err, 428 " -keymatexport label - Export keying material using label\n"); 429 BIO_printf(bio_err, 430 " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 431 } 432 433 #ifndef OPENSSL_NO_TLSEXT 434 435 /* This is a context that we pass to callbacks */ 436 typedef struct tlsextctx_st { 437 BIO *biodebug; 438 int ack; 439 } tlsextctx; 440 441 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg) 442 { 443 tlsextctx *p = (tlsextctx *) arg; 444 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 445 if (SSL_get_servername_type(s) != -1) 446 p->ack = !SSL_session_reused(s) && hn != NULL; 447 else 448 BIO_printf(bio_err, "Can't use SSL_get_servername\n"); 449 450 return SSL_TLSEXT_ERR_OK; 451 } 452 453 # ifndef OPENSSL_NO_SRP 454 455 /* This is a context that we pass to all callbacks */ 456 typedef struct srp_arg_st { 457 char *srppassin; 458 char *srplogin; 459 int msg; /* copy from c_msg */ 460 int debug; /* copy from c_debug */ 461 int amp; /* allow more groups */ 462 int strength /* minimal size for N */ ; 463 } SRP_ARG; 464 465 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 466 467 static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g) 468 { 469 BN_CTX *bn_ctx = BN_CTX_new(); 470 BIGNUM *p = BN_new(); 471 BIGNUM *r = BN_new(); 472 int ret = 473 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && 474 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 475 p != NULL && BN_rshift1(p, N) && 476 /* p = (N-1)/2 */ 477 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 478 r != NULL && 479 /* verify g^((N-1)/2) == -1 (mod N) */ 480 BN_mod_exp(r, g, p, N, bn_ctx) && 481 BN_add_word(r, 1) && BN_cmp(r, N) == 0; 482 483 if (r) 484 BN_free(r); 485 if (p) 486 BN_free(p); 487 if (bn_ctx) 488 BN_CTX_free(bn_ctx); 489 return ret; 490 } 491 492 /*- 493 * This callback is used here for two purposes: 494 * - extended debugging 495 * - making some primality tests for unknown groups 496 * The callback is only called for a non default group. 497 * 498 * An application does not need the call back at all if 499 * only the stanard groups are used. In real life situations, 500 * client and server already share well known groups, 501 * thus there is no need to verify them. 502 * Furthermore, in case that a server actually proposes a group that 503 * is not one of those defined in RFC 5054, it is more appropriate 504 * to add the group to a static list and then compare since 505 * primality tests are rather cpu consuming. 506 */ 507 508 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg) 509 { 510 SRP_ARG *srp_arg = (SRP_ARG *)arg; 511 BIGNUM *N = NULL, *g = NULL; 512 if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s))) 513 return 0; 514 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) { 515 BIO_printf(bio_err, "SRP parameters:\n"); 516 BIO_printf(bio_err, "\tN="); 517 BN_print(bio_err, N); 518 BIO_printf(bio_err, "\n\tg="); 519 BN_print(bio_err, g); 520 BIO_printf(bio_err, "\n"); 521 } 522 523 if (SRP_check_known_gN_param(g, N)) 524 return 1; 525 526 if (srp_arg->amp == 1) { 527 if (srp_arg->debug) 528 BIO_printf(bio_err, 529 "SRP param N and g are not known params, going to check deeper.\n"); 530 531 /* 532 * The srp_moregroups is a real debugging feature. Implementors 533 * should rather add the value to the known ones. The minimal size 534 * has already been tested. 535 */ 536 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g)) 537 return 1; 538 } 539 BIO_printf(bio_err, "SRP param N and g rejected.\n"); 540 return 0; 541 } 542 543 # define PWD_STRLEN 1024 544 545 static char *MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg) 546 { 547 SRP_ARG *srp_arg = (SRP_ARG *)arg; 548 char *pass = (char *)OPENSSL_malloc(PWD_STRLEN + 1); 549 PW_CB_DATA cb_tmp; 550 int l; 551 552 if (!pass) { 553 BIO_printf(bio_err, "Malloc failure\n"); 554 return NULL; 555 } 556 557 cb_tmp.password = (char *)srp_arg->srppassin; 558 cb_tmp.prompt_info = "SRP user"; 559 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) { 560 BIO_printf(bio_err, "Can't read Password\n"); 561 OPENSSL_free(pass); 562 return NULL; 563 } 564 *(pass + l) = '\0'; 565 566 return pass; 567 } 568 569 # endif 570 # ifndef OPENSSL_NO_SRTP 571 char *srtp_profiles = NULL; 572 # endif 573 574 # ifndef OPENSSL_NO_NEXTPROTONEG 575 /* This the context that we pass to next_proto_cb */ 576 typedef struct tlsextnextprotoctx_st { 577 unsigned char *data; 578 unsigned short len; 579 int status; 580 } tlsextnextprotoctx; 581 582 static tlsextnextprotoctx next_proto; 583 584 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, 585 const unsigned char *in, unsigned int inlen, 586 void *arg) 587 { 588 tlsextnextprotoctx *ctx = arg; 589 590 if (!c_quiet) { 591 /* We can assume that |in| is syntactically valid. */ 592 unsigned i; 593 BIO_printf(bio_c_out, "Protocols advertised by server: "); 594 for (i = 0; i < inlen;) { 595 if (i) 596 BIO_write(bio_c_out, ", ", 2); 597 BIO_write(bio_c_out, &in[i + 1], in[i]); 598 i += in[i] + 1; 599 } 600 BIO_write(bio_c_out, "\n", 1); 601 } 602 603 ctx->status = 604 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); 605 return SSL_TLSEXT_ERR_OK; 606 } 607 # endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 608 #endif 609 610 enum { 611 PROTO_OFF = 0, 612 PROTO_SMTP, 613 PROTO_POP3, 614 PROTO_IMAP, 615 PROTO_FTP, 616 PROTO_XMPP 617 }; 618 619 int MAIN(int, char **); 620 621 int MAIN(int argc, char **argv) 622 { 623 unsigned int off = 0, clr = 0; 624 SSL *con = NULL; 625 #ifndef OPENSSL_NO_KRB5 626 KSSL_CTX *kctx; 627 #endif 628 int s, k, width, state = 0; 629 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL; 630 int cbuf_len, cbuf_off; 631 int sbuf_len, sbuf_off; 632 fd_set readfds, writefds; 633 int fdin, fdout; 634 short port = PORT; 635 int full_log = 1; 636 char *host = SSL_HOST_NAME; 637 char *cert_file = NULL, *key_file = NULL; 638 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 639 char *passarg = NULL, *pass = NULL; 640 X509 *cert = NULL; 641 EVP_PKEY *key = NULL; 642 char *CApath = NULL, *CAfile = NULL, *cipher = NULL; 643 int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0; 644 int crlf = 0; 645 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; 646 SSL_CTX *ctx = NULL; 647 int ret = 1, in_init = 1, i, nbio_test = 0; 648 int starttls_proto = PROTO_OFF; 649 int prexit = 0; 650 X509_VERIFY_PARAM *vpm = NULL; 651 int badarg = 0; 652 const SSL_METHOD *meth = NULL; 653 int socket_type = SOCK_STREAM; 654 BIO *sbio; 655 char *inrand = NULL; 656 int mbuf_len = 0; 657 struct timeval timeout, *timeoutp; 658 #ifndef OPENSSL_NO_ENGINE 659 char *engine_id = NULL; 660 char *ssl_client_engine_id = NULL; 661 ENGINE *ssl_client_engine = NULL; 662 #endif 663 ENGINE *e = NULL; 664 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 665 struct timeval tv; 666 # if defined(OPENSSL_SYS_BEOS_R5) 667 int stdin_set = 0; 668 # endif 669 #endif 670 #ifndef OPENSSL_NO_TLSEXT 671 char *servername = NULL; 672 tlsextctx tlsextcbp = { NULL, 0 }; 673 # ifndef OPENSSL_NO_NEXTPROTONEG 674 const char *next_proto_neg_in = NULL; 675 # endif 676 #endif 677 char *sess_in = NULL; 678 char *sess_out = NULL; 679 struct sockaddr peer; 680 int peerlen = sizeof(peer); 681 int fallback_scsv = 0; 682 int enable_timeouts = 0; 683 long socket_mtu = 0; 684 #ifndef OPENSSL_NO_JPAKE 685 char *jpake_secret = NULL; 686 #endif 687 #ifndef OPENSSL_NO_SRP 688 char *srppass = NULL; 689 int srp_lateuser = 0; 690 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; 691 #endif 692 693 meth = SSLv23_client_method(); 694 695 apps_startup(); 696 c_Pause = 0; 697 c_quiet = 0; 698 c_ign_eof = 0; 699 c_debug = 0; 700 c_msg = 0; 701 c_showcerts = 0; 702 703 if (bio_err == NULL) 704 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 705 706 if (!load_config(bio_err, NULL)) 707 goto end; 708 709 if (((cbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 710 ((sbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 711 ((mbuf = OPENSSL_malloc(BUFSIZZ)) == NULL)) { 712 BIO_printf(bio_err, "out of memory\n"); 713 goto end; 714 } 715 716 verify_depth = 0; 717 verify_error = X509_V_OK; 718 #ifdef FIONBIO 719 c_nbio = 0; 720 #endif 721 722 argc--; 723 argv++; 724 while (argc >= 1) { 725 if (strcmp(*argv, "-host") == 0) { 726 if (--argc < 1) 727 goto bad; 728 host = *(++argv); 729 } else if (strcmp(*argv, "-port") == 0) { 730 if (--argc < 1) 731 goto bad; 732 port = atoi(*(++argv)); 733 if (port == 0) 734 goto bad; 735 } else if (strcmp(*argv, "-connect") == 0) { 736 if (--argc < 1) 737 goto bad; 738 if (!extract_host_port(*(++argv), &host, NULL, &port)) 739 goto bad; 740 } else if (strcmp(*argv, "-verify") == 0) { 741 verify = SSL_VERIFY_PEER; 742 if (--argc < 1) 743 goto bad; 744 verify_depth = atoi(*(++argv)); 745 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 746 } else if (strcmp(*argv, "-cert") == 0) { 747 if (--argc < 1) 748 goto bad; 749 cert_file = *(++argv); 750 } else if (strcmp(*argv, "-sess_out") == 0) { 751 if (--argc < 1) 752 goto bad; 753 sess_out = *(++argv); 754 } else if (strcmp(*argv, "-sess_in") == 0) { 755 if (--argc < 1) 756 goto bad; 757 sess_in = *(++argv); 758 } else if (strcmp(*argv, "-certform") == 0) { 759 if (--argc < 1) 760 goto bad; 761 cert_format = str2fmt(*(++argv)); 762 } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 763 if (badarg) 764 goto bad; 765 continue; 766 } else if (strcmp(*argv, "-verify_return_error") == 0) 767 verify_return_error = 1; 768 else if (strcmp(*argv, "-prexit") == 0) 769 prexit = 1; 770 else if (strcmp(*argv, "-crlf") == 0) 771 crlf = 1; 772 else if (strcmp(*argv, "-quiet") == 0) { 773 c_quiet = 1; 774 c_ign_eof = 1; 775 } else if (strcmp(*argv, "-ign_eof") == 0) 776 c_ign_eof = 1; 777 else if (strcmp(*argv, "-no_ign_eof") == 0) 778 c_ign_eof = 0; 779 else if (strcmp(*argv, "-pause") == 0) 780 c_Pause = 1; 781 else if (strcmp(*argv, "-debug") == 0) 782 c_debug = 1; 783 #ifndef OPENSSL_NO_TLSEXT 784 else if (strcmp(*argv, "-tlsextdebug") == 0) 785 c_tlsextdebug = 1; 786 else if (strcmp(*argv, "-status") == 0) 787 c_status_req = 1; 788 #endif 789 #ifdef WATT32 790 else if (strcmp(*argv, "-wdebug") == 0) 791 dbug_init(); 792 #endif 793 else if (strcmp(*argv, "-msg") == 0) 794 c_msg = 1; 795 else if (strcmp(*argv, "-showcerts") == 0) 796 c_showcerts = 1; 797 else if (strcmp(*argv, "-nbio_test") == 0) 798 nbio_test = 1; 799 else if (strcmp(*argv, "-state") == 0) 800 state = 1; 801 #ifndef OPENSSL_NO_PSK 802 else if (strcmp(*argv, "-psk_identity") == 0) { 803 if (--argc < 1) 804 goto bad; 805 psk_identity = *(++argv); 806 } else if (strcmp(*argv, "-psk") == 0) { 807 size_t j; 808 809 if (--argc < 1) 810 goto bad; 811 psk_key = *(++argv); 812 for (j = 0; j < strlen(psk_key); j++) { 813 if (isxdigit((unsigned char)psk_key[j])) 814 continue; 815 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv); 816 goto bad; 817 } 818 } 819 #endif 820 #ifndef OPENSSL_NO_SRP 821 else if (strcmp(*argv, "-srpuser") == 0) { 822 if (--argc < 1) 823 goto bad; 824 srp_arg.srplogin = *(++argv); 825 meth = TLSv1_client_method(); 826 } else if (strcmp(*argv, "-srppass") == 0) { 827 if (--argc < 1) 828 goto bad; 829 srppass = *(++argv); 830 meth = TLSv1_client_method(); 831 } else if (strcmp(*argv, "-srp_strength") == 0) { 832 if (--argc < 1) 833 goto bad; 834 srp_arg.strength = atoi(*(++argv)); 835 BIO_printf(bio_err, "SRP minimal length for N is %d\n", 836 srp_arg.strength); 837 meth = TLSv1_client_method(); 838 } else if (strcmp(*argv, "-srp_lateuser") == 0) { 839 srp_lateuser = 1; 840 meth = TLSv1_client_method(); 841 } else if (strcmp(*argv, "-srp_moregroups") == 0) { 842 srp_arg.amp = 1; 843 meth = TLSv1_client_method(); 844 } 845 #endif 846 #ifndef OPENSSL_NO_SSL2 847 else if (strcmp(*argv, "-ssl2") == 0) 848 meth = SSLv2_client_method(); 849 #endif 850 #ifndef OPENSSL_NO_SSL3_METHOD 851 else if (strcmp(*argv, "-ssl3") == 0) 852 meth = SSLv3_client_method(); 853 #endif 854 #ifndef OPENSSL_NO_TLS1 855 else if (strcmp(*argv, "-tls1_2") == 0) 856 meth = TLSv1_2_client_method(); 857 else if (strcmp(*argv, "-tls1_1") == 0) 858 meth = TLSv1_1_client_method(); 859 else if (strcmp(*argv, "-tls1") == 0) 860 meth = TLSv1_client_method(); 861 #endif 862 #ifndef OPENSSL_NO_DTLS1 863 else if (strcmp(*argv, "-dtls1") == 0) { 864 meth = DTLSv1_client_method(); 865 socket_type = SOCK_DGRAM; 866 } else if (strcmp(*argv, "-fallback_scsv") == 0) { 867 fallback_scsv = 1; 868 } else if (strcmp(*argv, "-timeout") == 0) 869 enable_timeouts = 1; 870 else if (strcmp(*argv, "-mtu") == 0) { 871 if (--argc < 1) 872 goto bad; 873 socket_mtu = atol(*(++argv)); 874 } 875 #endif 876 else if (strcmp(*argv, "-bugs") == 0) 877 bugs = 1; 878 else if (strcmp(*argv, "-keyform") == 0) { 879 if (--argc < 1) 880 goto bad; 881 key_format = str2fmt(*(++argv)); 882 } else if (strcmp(*argv, "-pass") == 0) { 883 if (--argc < 1) 884 goto bad; 885 passarg = *(++argv); 886 } else if (strcmp(*argv, "-key") == 0) { 887 if (--argc < 1) 888 goto bad; 889 key_file = *(++argv); 890 } else if (strcmp(*argv, "-reconnect") == 0) { 891 reconnect = 5; 892 } else if (strcmp(*argv, "-CApath") == 0) { 893 if (--argc < 1) 894 goto bad; 895 CApath = *(++argv); 896 } else if (strcmp(*argv, "-CAfile") == 0) { 897 if (--argc < 1) 898 goto bad; 899 CAfile = *(++argv); 900 } else if (strcmp(*argv, "-no_tls1_2") == 0) 901 off |= SSL_OP_NO_TLSv1_2; 902 else if (strcmp(*argv, "-no_tls1_1") == 0) 903 off |= SSL_OP_NO_TLSv1_1; 904 else if (strcmp(*argv, "-no_tls1") == 0) 905 off |= SSL_OP_NO_TLSv1; 906 else if (strcmp(*argv, "-no_ssl3") == 0) 907 off |= SSL_OP_NO_SSLv3; 908 else if (strcmp(*argv, "-no_ssl2") == 0) 909 off |= SSL_OP_NO_SSLv2; 910 else if (strcmp(*argv, "-no_comp") == 0) { 911 off |= SSL_OP_NO_COMPRESSION; 912 } 913 #ifndef OPENSSL_NO_TLSEXT 914 else if (strcmp(*argv, "-no_ticket") == 0) { 915 off |= SSL_OP_NO_TICKET; 916 } 917 # ifndef OPENSSL_NO_NEXTPROTONEG 918 else if (strcmp(*argv, "-nextprotoneg") == 0) { 919 if (--argc < 1) 920 goto bad; 921 next_proto_neg_in = *(++argv); 922 } 923 # endif 924 #endif 925 else if (strcmp(*argv, "-serverpref") == 0) 926 off |= SSL_OP_CIPHER_SERVER_PREFERENCE; 927 else if (strcmp(*argv, "-legacy_renegotiation") == 0) 928 off |= SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION; 929 else if (strcmp(*argv, "-legacy_server_connect") == 0) { 930 off |= SSL_OP_LEGACY_SERVER_CONNECT; 931 } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) { 932 clr |= SSL_OP_LEGACY_SERVER_CONNECT; 933 } else if (strcmp(*argv, "-cipher") == 0) { 934 if (--argc < 1) 935 goto bad; 936 cipher = *(++argv); 937 } 938 #ifdef FIONBIO 939 else if (strcmp(*argv, "-nbio") == 0) { 940 c_nbio = 1; 941 } 942 #endif 943 else if (strcmp(*argv, "-starttls") == 0) { 944 if (--argc < 1) 945 goto bad; 946 ++argv; 947 if (strcmp(*argv, "smtp") == 0) 948 starttls_proto = PROTO_SMTP; 949 else if (strcmp(*argv, "pop3") == 0) 950 starttls_proto = PROTO_POP3; 951 else if (strcmp(*argv, "imap") == 0) 952 starttls_proto = PROTO_IMAP; 953 else if (strcmp(*argv, "ftp") == 0) 954 starttls_proto = PROTO_FTP; 955 else if (strcmp(*argv, "xmpp") == 0) 956 starttls_proto = PROTO_XMPP; 957 else 958 goto bad; 959 } 960 #ifndef OPENSSL_NO_ENGINE 961 else if (strcmp(*argv, "-engine") == 0) { 962 if (--argc < 1) 963 goto bad; 964 engine_id = *(++argv); 965 } else if (strcmp(*argv, "-ssl_client_engine") == 0) { 966 if (--argc < 1) 967 goto bad; 968 ssl_client_engine_id = *(++argv); 969 } 970 #endif 971 else if (strcmp(*argv, "-rand") == 0) { 972 if (--argc < 1) 973 goto bad; 974 inrand = *(++argv); 975 } 976 #ifndef OPENSSL_NO_TLSEXT 977 else if (strcmp(*argv, "-servername") == 0) { 978 if (--argc < 1) 979 goto bad; 980 servername = *(++argv); 981 /* meth=TLSv1_client_method(); */ 982 } 983 #endif 984 #ifndef OPENSSL_NO_JPAKE 985 else if (strcmp(*argv, "-jpake") == 0) { 986 if (--argc < 1) 987 goto bad; 988 jpake_secret = *++argv; 989 } 990 #endif 991 #ifndef OPENSSL_NO_SRTP 992 else if (strcmp(*argv, "-use_srtp") == 0) { 993 if (--argc < 1) 994 goto bad; 995 srtp_profiles = *(++argv); 996 } 997 #endif 998 else if (strcmp(*argv, "-keymatexport") == 0) { 999 if (--argc < 1) 1000 goto bad; 1001 keymatexportlabel = *(++argv); 1002 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 1003 if (--argc < 1) 1004 goto bad; 1005 keymatexportlen = atoi(*(++argv)); 1006 if (keymatexportlen == 0) 1007 goto bad; 1008 } else { 1009 BIO_printf(bio_err, "unknown option %s\n", *argv); 1010 badop = 1; 1011 break; 1012 } 1013 argc--; 1014 argv++; 1015 } 1016 if (badop) { 1017 bad: 1018 sc_usage(); 1019 goto end; 1020 } 1021 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK) 1022 if (jpake_secret) { 1023 if (psk_key) { 1024 BIO_printf(bio_err, "Can't use JPAKE and PSK together\n"); 1025 goto end; 1026 } 1027 psk_identity = "JPAKE"; 1028 if (cipher) { 1029 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n"); 1030 goto end; 1031 } 1032 cipher = "PSK"; 1033 } 1034 #endif 1035 1036 OpenSSL_add_ssl_algorithms(); 1037 SSL_load_error_strings(); 1038 1039 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1040 next_proto.status = -1; 1041 if (next_proto_neg_in) { 1042 next_proto.data = 1043 next_protos_parse(&next_proto.len, next_proto_neg_in); 1044 if (next_proto.data == NULL) { 1045 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1046 goto end; 1047 } 1048 } else 1049 next_proto.data = NULL; 1050 #endif 1051 1052 #ifndef OPENSSL_NO_ENGINE 1053 e = setup_engine(bio_err, engine_id, 1); 1054 if (ssl_client_engine_id) { 1055 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id); 1056 if (!ssl_client_engine) { 1057 BIO_printf(bio_err, "Error getting client auth engine\n"); 1058 goto end; 1059 } 1060 } 1061 #endif 1062 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { 1063 BIO_printf(bio_err, "Error getting password\n"); 1064 goto end; 1065 } 1066 1067 if (key_file == NULL) 1068 key_file = cert_file; 1069 1070 if (key_file) { 1071 1072 key = load_key(bio_err, key_file, key_format, 0, pass, e, 1073 "client certificate private key file"); 1074 if (!key) { 1075 ERR_print_errors(bio_err); 1076 goto end; 1077 } 1078 1079 } 1080 1081 if (cert_file) { 1082 cert = load_cert(bio_err, cert_file, cert_format, 1083 NULL, e, "client certificate file"); 1084 1085 if (!cert) { 1086 ERR_print_errors(bio_err); 1087 goto end; 1088 } 1089 } 1090 1091 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 1092 && !RAND_status()) { 1093 BIO_printf(bio_err, 1094 "warning, not much extra random data, consider using the -rand option\n"); 1095 } 1096 if (inrand != NULL) 1097 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 1098 app_RAND_load_files(inrand)); 1099 1100 if (bio_c_out == NULL) { 1101 if (c_quiet && !c_debug && !c_msg) { 1102 bio_c_out = BIO_new(BIO_s_null()); 1103 } else { 1104 if (bio_c_out == NULL) 1105 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE); 1106 } 1107 } 1108 #ifndef OPENSSL_NO_SRP 1109 if (!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL)) { 1110 BIO_printf(bio_err, "Error getting password\n"); 1111 goto end; 1112 } 1113 #endif 1114 1115 ctx = SSL_CTX_new(meth); 1116 if (ctx == NULL) { 1117 ERR_print_errors(bio_err); 1118 goto end; 1119 } 1120 1121 if (vpm) 1122 SSL_CTX_set1_param(ctx, vpm); 1123 1124 #ifndef OPENSSL_NO_ENGINE 1125 if (ssl_client_engine) { 1126 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { 1127 BIO_puts(bio_err, "Error setting client auth engine\n"); 1128 ERR_print_errors(bio_err); 1129 ENGINE_free(ssl_client_engine); 1130 goto end; 1131 } 1132 ENGINE_free(ssl_client_engine); 1133 } 1134 #endif 1135 1136 #ifndef OPENSSL_NO_PSK 1137 # ifdef OPENSSL_NO_JPAKE 1138 if (psk_key != NULL) 1139 # else 1140 if (psk_key != NULL || jpake_secret) 1141 # endif 1142 { 1143 if (c_debug) 1144 BIO_printf(bio_c_out, 1145 "PSK key given or JPAKE in use, setting client callback\n"); 1146 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1147 } 1148 #endif 1149 #ifndef OPENSSL_NO_SRTP 1150 if (srtp_profiles != NULL) 1151 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 1152 #endif 1153 if (bugs) 1154 SSL_CTX_set_options(ctx, SSL_OP_ALL | off); 1155 else 1156 SSL_CTX_set_options(ctx, off); 1157 1158 if (clr) 1159 SSL_CTX_clear_options(ctx, clr); 1160 1161 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1162 if (next_proto.data) 1163 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1164 #endif 1165 1166 if (state) 1167 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1168 if (cipher != NULL) 1169 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 1170 BIO_printf(bio_err, "error setting cipher list\n"); 1171 ERR_print_errors(bio_err); 1172 goto end; 1173 } 1174 #if 0 1175 else 1176 SSL_CTX_set_cipher_list(ctx, getenv("SSL_CIPHER")); 1177 #endif 1178 1179 SSL_CTX_set_verify(ctx, verify, verify_callback); 1180 if (!set_cert_key_stuff(ctx, cert, key)) 1181 goto end; 1182 1183 if ((CAfile || CApath) 1184 && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) { 1185 ERR_print_errors(bio_err); 1186 } 1187 if (!SSL_CTX_set_default_verify_paths(ctx)) { 1188 ERR_print_errors(bio_err); 1189 } 1190 #ifndef OPENSSL_NO_TLSEXT 1191 if (servername != NULL) { 1192 tlsextcbp.biodebug = bio_err; 1193 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1194 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1195 } 1196 # ifndef OPENSSL_NO_SRP 1197 if (srp_arg.srplogin) { 1198 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { 1199 BIO_printf(bio_err, "Unable to set SRP username\n"); 1200 goto end; 1201 } 1202 srp_arg.msg = c_msg; 1203 srp_arg.debug = c_debug; 1204 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); 1205 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1206 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1207 if (c_msg || c_debug || srp_arg.amp == 0) 1208 SSL_CTX_set_srp_verify_param_callback(ctx, 1209 ssl_srp_verify_param_cb); 1210 } 1211 # endif 1212 #endif 1213 1214 con = SSL_new(ctx); 1215 if (sess_in) { 1216 SSL_SESSION *sess; 1217 BIO *stmp = BIO_new_file(sess_in, "r"); 1218 if (!stmp) { 1219 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1220 ERR_print_errors(bio_err); 1221 goto end; 1222 } 1223 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1224 BIO_free(stmp); 1225 if (!sess) { 1226 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1227 ERR_print_errors(bio_err); 1228 goto end; 1229 } 1230 SSL_set_session(con, sess); 1231 SSL_SESSION_free(sess); 1232 } 1233 1234 if (fallback_scsv) 1235 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 1236 1237 #ifndef OPENSSL_NO_TLSEXT 1238 if (servername != NULL) { 1239 if (!SSL_set_tlsext_host_name(con, servername)) { 1240 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 1241 ERR_print_errors(bio_err); 1242 goto end; 1243 } 1244 } 1245 #endif 1246 #ifndef OPENSSL_NO_KRB5 1247 if (con && (kctx = kssl_ctx_new()) != NULL) { 1248 SSL_set0_kssl_ctx(con, kctx); 1249 kssl_ctx_setstring(kctx, KSSL_SERVER, host); 1250 } 1251 #endif /* OPENSSL_NO_KRB5 */ 1252 /* SSL_set_cipher_list(con,"RC4-MD5"); */ 1253 #if 0 1254 # ifdef TLSEXT_TYPE_opaque_prf_input 1255 SSL_set_tlsext_opaque_prf_input(con, "Test client", 11); 1256 # endif 1257 #endif 1258 1259 re_start: 1260 1261 if (init_client(&s, host, port, socket_type) == 0) { 1262 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); 1263 SHUTDOWN(s); 1264 goto end; 1265 } 1266 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 1267 1268 #ifdef FIONBIO 1269 if (c_nbio) { 1270 unsigned long l = 1; 1271 BIO_printf(bio_c_out, "turning on non blocking io\n"); 1272 if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) { 1273 ERR_print_errors(bio_err); 1274 goto end; 1275 } 1276 } 1277 #endif 1278 if (c_Pause & 0x01) 1279 SSL_set_debug(con, 1); 1280 1281 if (SSL_version(con) == DTLS1_VERSION) { 1282 1283 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1284 if (getsockname(s, &peer, (void *)&peerlen) < 0) { 1285 BIO_printf(bio_err, "getsockname:errno=%d\n", 1286 get_last_socket_error()); 1287 SHUTDOWN(s); 1288 goto end; 1289 } 1290 1291 (void)BIO_ctrl_set_connected(sbio, 1, &peer); 1292 1293 if (enable_timeouts) { 1294 timeout.tv_sec = 0; 1295 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1296 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1297 1298 timeout.tv_sec = 0; 1299 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1300 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1301 } 1302 1303 if (socket_mtu) { 1304 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 1305 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 1306 DTLS_get_link_min_mtu(con)); 1307 BIO_free(sbio); 1308 goto shut; 1309 } 1310 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1311 if (!DTLS_set_link_mtu(con, socket_mtu)) { 1312 BIO_printf(bio_err, "Failed to set MTU\n"); 1313 BIO_free(sbio); 1314 goto shut; 1315 } 1316 } else 1317 /* want to do MTU discovery */ 1318 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1319 } else 1320 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1321 1322 if (nbio_test) { 1323 BIO *test; 1324 1325 test = BIO_new(BIO_f_nbio_test()); 1326 sbio = BIO_push(test, sbio); 1327 } 1328 1329 if (c_debug) { 1330 SSL_set_debug(con, 1); 1331 BIO_set_callback(sbio, bio_dump_callback); 1332 BIO_set_callback_arg(sbio, (char *)bio_c_out); 1333 } 1334 if (c_msg) { 1335 SSL_set_msg_callback(con, msg_cb); 1336 SSL_set_msg_callback_arg(con, bio_c_out); 1337 } 1338 #ifndef OPENSSL_NO_TLSEXT 1339 if (c_tlsextdebug) { 1340 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1341 SSL_set_tlsext_debug_arg(con, bio_c_out); 1342 } 1343 if (c_status_req) { 1344 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 1345 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 1346 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 1347 # if 0 1348 { 1349 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null(); 1350 OCSP_RESPID *id = OCSP_RESPID_new(); 1351 id->value.byKey = ASN1_OCTET_STRING_new(); 1352 id->type = V_OCSP_RESPID_KEY; 1353 ASN1_STRING_set(id->value.byKey, "Hello World", -1); 1354 sk_OCSP_RESPID_push(ids, id); 1355 SSL_set_tlsext_status_ids(con, ids); 1356 } 1357 # endif 1358 } 1359 #endif 1360 #ifndef OPENSSL_NO_JPAKE 1361 if (jpake_secret) 1362 jpake_client_auth(bio_c_out, sbio, jpake_secret); 1363 #endif 1364 1365 SSL_set_bio(con, sbio, sbio); 1366 SSL_set_connect_state(con); 1367 1368 /* ok, lets connect */ 1369 width = SSL_get_fd(con) + 1; 1370 1371 read_tty = 1; 1372 write_tty = 0; 1373 tty_on = 0; 1374 read_ssl = 1; 1375 write_ssl = 1; 1376 1377 cbuf_len = 0; 1378 cbuf_off = 0; 1379 sbuf_len = 0; 1380 sbuf_off = 0; 1381 1382 /* This is an ugly hack that does a lot of assumptions */ 1383 /* 1384 * We do have to handle multi-line responses which may come in a single 1385 * packet or not. We therefore have to use BIO_gets() which does need a 1386 * buffering BIO. So during the initial chitchat we do push a buffering 1387 * BIO into the chain that is removed again later on to not disturb the 1388 * rest of the s_client operation. 1389 */ 1390 if (starttls_proto == PROTO_SMTP) { 1391 int foundit = 0; 1392 BIO *fbio = BIO_new(BIO_f_buffer()); 1393 BIO_push(fbio, sbio); 1394 /* wait for multi-line response to end from SMTP */ 1395 do { 1396 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1397 } 1398 while (mbuf_len > 3 && mbuf[3] == '-'); 1399 /* STARTTLS command requires EHLO... */ 1400 BIO_printf(fbio, "EHLO openssl.client.net\r\n"); 1401 (void)BIO_flush(fbio); 1402 /* wait for multi-line response to end EHLO SMTP response */ 1403 do { 1404 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1405 if (strstr(mbuf, "STARTTLS")) 1406 foundit = 1; 1407 } 1408 while (mbuf_len > 3 && mbuf[3] == '-'); 1409 (void)BIO_flush(fbio); 1410 BIO_pop(fbio); 1411 BIO_free(fbio); 1412 if (!foundit) 1413 BIO_printf(bio_err, 1414 "didn't found starttls in server response," 1415 " try anyway...\n"); 1416 BIO_printf(sbio, "STARTTLS\r\n"); 1417 BIO_read(sbio, sbuf, BUFSIZZ); 1418 } else if (starttls_proto == PROTO_POP3) { 1419 BIO_read(sbio, mbuf, BUFSIZZ); 1420 BIO_printf(sbio, "STLS\r\n"); 1421 BIO_read(sbio, sbuf, BUFSIZZ); 1422 } else if (starttls_proto == PROTO_IMAP) { 1423 int foundit = 0; 1424 BIO *fbio = BIO_new(BIO_f_buffer()); 1425 BIO_push(fbio, sbio); 1426 BIO_gets(fbio, mbuf, BUFSIZZ); 1427 /* STARTTLS command requires CAPABILITY... */ 1428 BIO_printf(fbio, ". CAPABILITY\r\n"); 1429 (void)BIO_flush(fbio); 1430 /* wait for multi-line CAPABILITY response */ 1431 do { 1432 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1433 if (strstr(mbuf, "STARTTLS")) 1434 foundit = 1; 1435 } 1436 while (mbuf_len > 3 && mbuf[0] != '.'); 1437 (void)BIO_flush(fbio); 1438 BIO_pop(fbio); 1439 BIO_free(fbio); 1440 if (!foundit) 1441 BIO_printf(bio_err, 1442 "didn't found STARTTLS in server response," 1443 " try anyway...\n"); 1444 BIO_printf(sbio, ". STARTTLS\r\n"); 1445 BIO_read(sbio, sbuf, BUFSIZZ); 1446 } else if (starttls_proto == PROTO_FTP) { 1447 BIO *fbio = BIO_new(BIO_f_buffer()); 1448 BIO_push(fbio, sbio); 1449 /* wait for multi-line response to end from FTP */ 1450 do { 1451 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1452 } 1453 while (mbuf_len > 3 && mbuf[3] == '-'); 1454 (void)BIO_flush(fbio); 1455 BIO_pop(fbio); 1456 BIO_free(fbio); 1457 BIO_printf(sbio, "AUTH TLS\r\n"); 1458 BIO_read(sbio, sbuf, BUFSIZZ); 1459 } 1460 if (starttls_proto == PROTO_XMPP) { 1461 int seen = 0; 1462 BIO_printf(sbio, "<stream:stream " 1463 "xmlns:stream='http://etherx.jabber.org/streams' " 1464 "xmlns='jabber:client' to='%s' version='1.0'>", host); 1465 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1466 mbuf[seen] = 0; 1467 while (!strstr 1468 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) { 1469 if (strstr(mbuf, "/stream:features>")) 1470 goto shut; 1471 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1472 mbuf[seen] = 0; 1473 } 1474 BIO_printf(sbio, 1475 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 1476 seen = BIO_read(sbio, sbuf, BUFSIZZ); 1477 sbuf[seen] = 0; 1478 if (!strstr(sbuf, "<proceed")) 1479 goto shut; 1480 mbuf[0] = 0; 1481 } 1482 1483 for (;;) { 1484 FD_ZERO(&readfds); 1485 FD_ZERO(&writefds); 1486 fdin = fileno(stdin); 1487 if (fdin < 0) { 1488 BIO_printf(bio_err,"bad fileno for stdin\n"); 1489 goto shut; 1490 } 1491 fdout = fileno(stdout); 1492 if (fdout < 0) { 1493 BIO_printf(bio_err,"bad fileno for stdout\n"); 1494 goto shut; 1495 } 1496 1497 if ((SSL_version(con) == DTLS1_VERSION) && 1498 DTLSv1_get_timeout(con, &timeout)) 1499 timeoutp = &timeout; 1500 else 1501 timeoutp = NULL; 1502 1503 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { 1504 in_init = 1; 1505 tty_on = 0; 1506 } else { 1507 tty_on = 1; 1508 if (in_init) { 1509 in_init = 0; 1510 #if 0 /* This test doesn't really work as intended 1511 * (needs to be fixed) */ 1512 # ifndef OPENSSL_NO_TLSEXT 1513 if (servername != NULL && !SSL_session_reused(con)) { 1514 BIO_printf(bio_c_out, 1515 "Server did %sacknowledge servername extension.\n", 1516 tlsextcbp.ack ? "" : "not "); 1517 } 1518 # endif 1519 #endif 1520 if (sess_out) { 1521 BIO *stmp = BIO_new_file(sess_out, "w"); 1522 if (stmp) { 1523 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 1524 BIO_free(stmp); 1525 } else 1526 BIO_printf(bio_err, "Error writing session file %s\n", 1527 sess_out); 1528 } 1529 print_stuff(bio_c_out, con, full_log); 1530 if (full_log > 0) 1531 full_log--; 1532 1533 if (starttls_proto) { 1534 BIO_printf(bio_err, "%s", mbuf); 1535 /* We don't need to know any more */ 1536 starttls_proto = PROTO_OFF; 1537 } 1538 1539 if (reconnect) { 1540 reconnect--; 1541 BIO_printf(bio_c_out, 1542 "drop connection and then reconnect\n"); 1543 SSL_shutdown(con); 1544 SSL_set_connect_state(con); 1545 SHUTDOWN(SSL_get_fd(con)); 1546 goto re_start; 1547 } 1548 } 1549 } 1550 1551 ssl_pending = read_ssl && SSL_pending(con); 1552 1553 if (!ssl_pending) { 1554 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5) 1555 if (tty_on) { 1556 if (read_tty) 1557 openssl_fdset(fdin, &readfds); 1558 if (write_tty) 1559 openssl_fdset(fdout, &writefds); 1560 } 1561 if (read_ssl) 1562 openssl_fdset(SSL_get_fd(con), &readfds); 1563 if (write_ssl) 1564 openssl_fdset(SSL_get_fd(con), &writefds); 1565 #else 1566 if (!tty_on || !write_tty) { 1567 if (read_ssl) 1568 openssl_fdset(SSL_get_fd(con), &readfds); 1569 if (write_ssl) 1570 openssl_fdset(SSL_get_fd(con), &writefds); 1571 } 1572 #endif 1573 /*- printf("mode tty(%d %d%d) ssl(%d%d)\n", 1574 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1575 1576 /* 1577 * Note: under VMS with SOCKETSHR the second parameter is 1578 * currently of type (int *) whereas under other systems it is 1579 * (void *) if you don't have a cast it will choke the compiler: 1580 * if you do have a cast then you can either go for (int *) or 1581 * (void *). 1582 */ 1583 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1584 /* 1585 * Under Windows/DOS we make the assumption that we can always 1586 * write to the tty: therefore if we need to write to the tty we 1587 * just fall through. Otherwise we timeout the select every 1588 * second and see if there are any keypresses. Note: this is a 1589 * hack, in a proper Windows application we wouldn't do this. 1590 */ 1591 i = 0; 1592 if (!write_tty) { 1593 if (read_tty) { 1594 tv.tv_sec = 1; 1595 tv.tv_usec = 0; 1596 i = select(width, (void *)&readfds, (void *)&writefds, 1597 NULL, &tv); 1598 # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1599 if (!i && (!_kbhit() || !read_tty)) 1600 continue; 1601 # else 1602 if (!i && (!((_kbhit()) 1603 || (WAIT_OBJECT_0 == 1604 WaitForSingleObject(GetStdHandle 1605 (STD_INPUT_HANDLE), 1606 0))) 1607 || !read_tty)) 1608 continue; 1609 # endif 1610 } else 1611 i = select(width, (void *)&readfds, (void *)&writefds, 1612 NULL, timeoutp); 1613 } 1614 #elif defined(OPENSSL_SYS_NETWARE) 1615 if (!write_tty) { 1616 if (read_tty) { 1617 tv.tv_sec = 1; 1618 tv.tv_usec = 0; 1619 i = select(width, (void *)&readfds, (void *)&writefds, 1620 NULL, &tv); 1621 } else 1622 i = select(width, (void *)&readfds, (void *)&writefds, 1623 NULL, timeoutp); 1624 } 1625 #elif defined(OPENSSL_SYS_BEOS_R5) 1626 /* Under BeOS-R5 the situation is similar to DOS */ 1627 i = 0; 1628 stdin_set = 0; 1629 (void)fcntl(fdin, F_SETFL, O_NONBLOCK); 1630 if (!write_tty) { 1631 if (read_tty) { 1632 tv.tv_sec = 1; 1633 tv.tv_usec = 0; 1634 i = select(width, (void *)&readfds, (void *)&writefds, 1635 NULL, &tv); 1636 if (read(fdin, sbuf, 0) >= 0) 1637 stdin_set = 1; 1638 if (!i && (stdin_set != 1 || !read_tty)) 1639 continue; 1640 } else 1641 i = select(width, (void *)&readfds, (void *)&writefds, 1642 NULL, timeoutp); 1643 } 1644 (void)fcntl(fdin, F_SETFL, 0); 1645 #else 1646 i = select(width, (void *)&readfds, (void *)&writefds, 1647 NULL, timeoutp); 1648 #endif 1649 if (i < 0) { 1650 BIO_printf(bio_err, "bad select %d\n", 1651 get_last_socket_error()); 1652 goto shut; 1653 /* goto end; */ 1654 } 1655 } 1656 1657 if ((SSL_version(con) == DTLS1_VERSION) 1658 && DTLSv1_handle_timeout(con) > 0) { 1659 BIO_printf(bio_err, "TIMEOUT occured\n"); 1660 } 1661 1662 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { 1663 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); 1664 switch (SSL_get_error(con, k)) { 1665 case SSL_ERROR_NONE: 1666 cbuf_off += k; 1667 cbuf_len -= k; 1668 if (k <= 0) 1669 goto end; 1670 /* we have done a write(con,NULL,0); */ 1671 if (cbuf_len <= 0) { 1672 read_tty = 1; 1673 write_ssl = 0; 1674 } else { /* if (cbuf_len > 0) */ 1675 1676 read_tty = 0; 1677 write_ssl = 1; 1678 } 1679 break; 1680 case SSL_ERROR_WANT_WRITE: 1681 BIO_printf(bio_c_out, "write W BLOCK\n"); 1682 write_ssl = 1; 1683 read_tty = 0; 1684 break; 1685 case SSL_ERROR_WANT_READ: 1686 BIO_printf(bio_c_out, "write R BLOCK\n"); 1687 write_tty = 0; 1688 read_ssl = 1; 1689 write_ssl = 0; 1690 break; 1691 case SSL_ERROR_WANT_X509_LOOKUP: 1692 BIO_printf(bio_c_out, "write X BLOCK\n"); 1693 break; 1694 case SSL_ERROR_ZERO_RETURN: 1695 if (cbuf_len != 0) { 1696 BIO_printf(bio_c_out, "shutdown\n"); 1697 ret = 0; 1698 goto shut; 1699 } else { 1700 read_tty = 1; 1701 write_ssl = 0; 1702 break; 1703 } 1704 1705 case SSL_ERROR_SYSCALL: 1706 if ((k != 0) || (cbuf_len != 0)) { 1707 BIO_printf(bio_err, "write:errno=%d\n", 1708 get_last_socket_error()); 1709 goto shut; 1710 } else { 1711 read_tty = 1; 1712 write_ssl = 0; 1713 } 1714 break; 1715 case SSL_ERROR_SSL: 1716 ERR_print_errors(bio_err); 1717 goto shut; 1718 } 1719 } 1720 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 1721 /* Assume Windows/DOS/BeOS can always write */ 1722 else if (!ssl_pending && write_tty) 1723 #else 1724 else if (!ssl_pending && FD_ISSET(fdout, &writefds)) 1725 #endif 1726 { 1727 #ifdef CHARSET_EBCDIC 1728 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); 1729 #endif 1730 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); 1731 1732 if (i <= 0) { 1733 BIO_printf(bio_c_out, "DONE\n"); 1734 ret = 0; 1735 goto shut; 1736 /* goto end; */ 1737 } 1738 1739 sbuf_len -= i;; 1740 sbuf_off += i; 1741 if (sbuf_len <= 0) { 1742 read_ssl = 1; 1743 write_tty = 0; 1744 } 1745 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { 1746 #ifdef RENEG 1747 { 1748 static int iiii; 1749 if (++iiii == 52) { 1750 SSL_renegotiate(con); 1751 iiii = 0; 1752 } 1753 } 1754 #endif 1755 #if 1 1756 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 1757 #else 1758 /* Demo for pending and peek :-) */ 1759 k = SSL_read(con, sbuf, 16); 1760 { 1761 char zbuf[10240]; 1762 printf("read=%d pending=%d peek=%d\n", k, SSL_pending(con), 1763 SSL_peek(con, zbuf, 10240)); 1764 } 1765 #endif 1766 1767 switch (SSL_get_error(con, k)) { 1768 case SSL_ERROR_NONE: 1769 if (k <= 0) 1770 goto end; 1771 sbuf_off = 0; 1772 sbuf_len = k; 1773 1774 read_ssl = 0; 1775 write_tty = 1; 1776 break; 1777 case SSL_ERROR_WANT_WRITE: 1778 BIO_printf(bio_c_out, "read W BLOCK\n"); 1779 write_ssl = 1; 1780 read_tty = 0; 1781 break; 1782 case SSL_ERROR_WANT_READ: 1783 BIO_printf(bio_c_out, "read R BLOCK\n"); 1784 write_tty = 0; 1785 read_ssl = 1; 1786 if ((read_tty == 0) && (write_ssl == 0)) 1787 write_ssl = 1; 1788 break; 1789 case SSL_ERROR_WANT_X509_LOOKUP: 1790 BIO_printf(bio_c_out, "read X BLOCK\n"); 1791 break; 1792 case SSL_ERROR_SYSCALL: 1793 ret = get_last_socket_error(); 1794 BIO_printf(bio_err, "read:errno=%d\n", ret); 1795 goto shut; 1796 case SSL_ERROR_ZERO_RETURN: 1797 BIO_printf(bio_c_out, "closed\n"); 1798 ret = 0; 1799 goto shut; 1800 case SSL_ERROR_SSL: 1801 ERR_print_errors(bio_err); 1802 goto shut; 1803 /* break; */ 1804 } 1805 } 1806 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1807 # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1808 else if (_kbhit()) 1809 # else 1810 else if ((_kbhit()) 1811 || (WAIT_OBJECT_0 == 1812 WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) 1813 # endif 1814 #elif defined (OPENSSL_SYS_NETWARE) 1815 else if (_kbhit()) 1816 #elif defined(OPENSSL_SYS_BEOS_R5) 1817 else if (stdin_set) 1818 #else 1819 else if (FD_ISSET(fdin, &readfds)) 1820 #endif 1821 { 1822 if (crlf) { 1823 int j, lf_num; 1824 1825 i = raw_read_stdin(cbuf, BUFSIZZ / 2); 1826 lf_num = 0; 1827 /* both loops are skipped when i <= 0 */ 1828 for (j = 0; j < i; j++) 1829 if (cbuf[j] == '\n') 1830 lf_num++; 1831 for (j = i - 1; j >= 0; j--) { 1832 cbuf[j + lf_num] = cbuf[j]; 1833 if (cbuf[j] == '\n') { 1834 lf_num--; 1835 i++; 1836 cbuf[j + lf_num] = '\r'; 1837 } 1838 } 1839 assert(lf_num == 0); 1840 } else 1841 i = raw_read_stdin(cbuf, BUFSIZZ); 1842 1843 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) { 1844 BIO_printf(bio_err, "DONE\n"); 1845 ret = 0; 1846 goto shut; 1847 } 1848 1849 if ((!c_ign_eof) && (cbuf[0] == 'R')) { 1850 BIO_printf(bio_err, "RENEGOTIATING\n"); 1851 SSL_renegotiate(con); 1852 cbuf_len = 0; 1853 } 1854 #ifndef OPENSSL_NO_HEARTBEATS 1855 else if ((!c_ign_eof) && (cbuf[0] == 'B')) { 1856 BIO_printf(bio_err, "HEARTBEATING\n"); 1857 SSL_heartbeat(con); 1858 cbuf_len = 0; 1859 } 1860 #endif 1861 else { 1862 cbuf_len = i; 1863 cbuf_off = 0; 1864 #ifdef CHARSET_EBCDIC 1865 ebcdic2ascii(cbuf, cbuf, i); 1866 #endif 1867 } 1868 1869 write_ssl = 1; 1870 read_tty = 0; 1871 } 1872 } 1873 1874 ret = 0; 1875 shut: 1876 if (in_init) 1877 print_stuff(bio_c_out, con, full_log); 1878 SSL_shutdown(con); 1879 SHUTDOWN(SSL_get_fd(con)); 1880 end: 1881 if (con != NULL) { 1882 if (prexit != 0) 1883 print_stuff(bio_c_out, con, 1); 1884 SSL_free(con); 1885 } 1886 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1887 if (next_proto.data) 1888 OPENSSL_free(next_proto.data); 1889 #endif 1890 if (ctx != NULL) 1891 SSL_CTX_free(ctx); 1892 if (cert) 1893 X509_free(cert); 1894 if (key) 1895 EVP_PKEY_free(key); 1896 if (pass) 1897 OPENSSL_free(pass); 1898 #ifndef OPENSSL_NO_SRP 1899 OPENSSL_free(srp_arg.srppassin); 1900 #endif 1901 if (vpm) 1902 X509_VERIFY_PARAM_free(vpm); 1903 if (cbuf != NULL) { 1904 OPENSSL_cleanse(cbuf, BUFSIZZ); 1905 OPENSSL_free(cbuf); 1906 } 1907 if (sbuf != NULL) { 1908 OPENSSL_cleanse(sbuf, BUFSIZZ); 1909 OPENSSL_free(sbuf); 1910 } 1911 if (mbuf != NULL) { 1912 OPENSSL_cleanse(mbuf, BUFSIZZ); 1913 OPENSSL_free(mbuf); 1914 } 1915 if (bio_c_out != NULL) { 1916 BIO_free(bio_c_out); 1917 bio_c_out = NULL; 1918 } 1919 apps_shutdown(); 1920 OPENSSL_EXIT(ret); 1921 } 1922 1923 static void print_stuff(BIO *bio, SSL *s, int full) 1924 { 1925 X509 *peer = NULL; 1926 char *p; 1927 static const char *space = " "; 1928 char buf[BUFSIZ]; 1929 STACK_OF(X509) *sk; 1930 STACK_OF(X509_NAME) *sk2; 1931 const SSL_CIPHER *c; 1932 X509_NAME *xn; 1933 int j, i; 1934 #ifndef OPENSSL_NO_COMP 1935 const COMP_METHOD *comp, *expansion; 1936 #endif 1937 unsigned char *exportedkeymat; 1938 1939 if (full) { 1940 int got_a_chain = 0; 1941 1942 sk = SSL_get_peer_cert_chain(s); 1943 if (sk != NULL) { 1944 got_a_chain = 1; /* we don't have it for SSL2 (yet) */ 1945 1946 BIO_printf(bio, "---\nCertificate chain\n"); 1947 for (i = 0; i < sk_X509_num(sk); i++) { 1948 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)), 1949 buf, sizeof buf); 1950 BIO_printf(bio, "%2d s:%s\n", i, buf); 1951 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)), 1952 buf, sizeof buf); 1953 BIO_printf(bio, " i:%s\n", buf); 1954 if (c_showcerts) 1955 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 1956 } 1957 } 1958 1959 BIO_printf(bio, "---\n"); 1960 peer = SSL_get_peer_certificate(s); 1961 if (peer != NULL) { 1962 BIO_printf(bio, "Server certificate\n"); 1963 1964 /* Redundant if we showed the whole chain */ 1965 if (!(c_showcerts && got_a_chain)) 1966 PEM_write_bio_X509(bio, peer); 1967 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 1968 BIO_printf(bio, "subject=%s\n", buf); 1969 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 1970 BIO_printf(bio, "issuer=%s\n", buf); 1971 } else 1972 BIO_printf(bio, "no peer certificate available\n"); 1973 1974 sk2 = SSL_get_client_CA_list(s); 1975 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { 1976 BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); 1977 for (i = 0; i < sk_X509_NAME_num(sk2); i++) { 1978 xn = sk_X509_NAME_value(sk2, i); 1979 X509_NAME_oneline(xn, buf, sizeof(buf)); 1980 BIO_write(bio, buf, strlen(buf)); 1981 BIO_write(bio, "\n", 1); 1982 } 1983 } else { 1984 BIO_printf(bio, "---\nNo client certificate CA names sent\n"); 1985 } 1986 p = SSL_get_shared_ciphers(s, buf, sizeof buf); 1987 if (p != NULL) { 1988 /* 1989 * This works only for SSL 2. In later protocol versions, the 1990 * client does not know what other ciphers (in addition to the 1991 * one to be used in the current connection) the server supports. 1992 */ 1993 1994 BIO_printf(bio, 1995 "---\nCiphers common between both SSL endpoints:\n"); 1996 j = i = 0; 1997 while (*p) { 1998 if (*p == ':') { 1999 BIO_write(bio, space, 15 - j % 25); 2000 i++; 2001 j = 0; 2002 BIO_write(bio, ((i % 3) ? " " : "\n"), 1); 2003 } else { 2004 BIO_write(bio, p, 1); 2005 j++; 2006 } 2007 p++; 2008 } 2009 BIO_write(bio, "\n", 1); 2010 } 2011 2012 BIO_printf(bio, 2013 "---\nSSL handshake has read %ld bytes and written %ld bytes\n", 2014 BIO_number_read(SSL_get_rbio(s)), 2015 BIO_number_written(SSL_get_wbio(s))); 2016 } 2017 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, ")); 2018 c = SSL_get_current_cipher(s); 2019 BIO_printf(bio, "%s, Cipher is %s\n", 2020 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 2021 if (peer != NULL) { 2022 EVP_PKEY *pktmp; 2023 pktmp = X509_get_pubkey(peer); 2024 BIO_printf(bio, "Server public key is %d bit\n", 2025 EVP_PKEY_bits(pktmp)); 2026 EVP_PKEY_free(pktmp); 2027 } 2028 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 2029 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 2030 #ifndef OPENSSL_NO_COMP 2031 comp = SSL_get_current_compression(s); 2032 expansion = SSL_get_current_expansion(s); 2033 BIO_printf(bio, "Compression: %s\n", 2034 comp ? SSL_COMP_get_name(comp) : "NONE"); 2035 BIO_printf(bio, "Expansion: %s\n", 2036 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 2037 #endif 2038 2039 #ifdef SSL_DEBUG 2040 { 2041 /* Print out local port of connection: useful for debugging */ 2042 int sock; 2043 struct sockaddr_in ladd; 2044 socklen_t ladd_size = sizeof(ladd); 2045 sock = SSL_get_fd(s); 2046 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size); 2047 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); 2048 } 2049 #endif 2050 2051 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 2052 if (next_proto.status != -1) { 2053 const unsigned char *proto; 2054 unsigned int proto_len; 2055 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 2056 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 2057 BIO_write(bio, proto, proto_len); 2058 BIO_write(bio, "\n", 1); 2059 } 2060 #endif 2061 2062 #ifndef OPENSSL_NO_SRTP 2063 { 2064 SRTP_PROTECTION_PROFILE *srtp_profile = 2065 SSL_get_selected_srtp_profile(s); 2066 2067 if (srtp_profile) 2068 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 2069 srtp_profile->name); 2070 } 2071 #endif 2072 2073 SSL_SESSION_print(bio, SSL_get_session(s)); 2074 if (keymatexportlabel != NULL) { 2075 BIO_printf(bio, "Keying material exporter:\n"); 2076 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 2077 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 2078 exportedkeymat = OPENSSL_malloc(keymatexportlen); 2079 if (exportedkeymat != NULL) { 2080 if (!SSL_export_keying_material(s, exportedkeymat, 2081 keymatexportlen, 2082 keymatexportlabel, 2083 strlen(keymatexportlabel), 2084 NULL, 0, 0)) { 2085 BIO_printf(bio, " Error\n"); 2086 } else { 2087 BIO_printf(bio, " Keying material: "); 2088 for (i = 0; i < keymatexportlen; i++) 2089 BIO_printf(bio, "%02X", exportedkeymat[i]); 2090 BIO_printf(bio, "\n"); 2091 } 2092 OPENSSL_free(exportedkeymat); 2093 } 2094 } 2095 BIO_printf(bio, "---\n"); 2096 if (peer != NULL) 2097 X509_free(peer); 2098 /* flush, or debugging output gets mixed with http response */ 2099 (void)BIO_flush(bio); 2100 } 2101 2102 #ifndef OPENSSL_NO_TLSEXT 2103 2104 static int ocsp_resp_cb(SSL *s, void *arg) 2105 { 2106 const unsigned char *p; 2107 int len; 2108 OCSP_RESPONSE *rsp; 2109 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 2110 BIO_puts(arg, "OCSP response: "); 2111 if (!p) { 2112 BIO_puts(arg, "no response sent\n"); 2113 return 1; 2114 } 2115 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 2116 if (!rsp) { 2117 BIO_puts(arg, "response parse error\n"); 2118 BIO_dump_indent(arg, (char *)p, len, 4); 2119 return 0; 2120 } 2121 BIO_puts(arg, "\n======================================\n"); 2122 OCSP_RESPONSE_print(arg, rsp, 0); 2123 BIO_puts(arg, "======================================\n"); 2124 OCSP_RESPONSE_free(rsp); 2125 return 1; 2126 } 2127 2128 #endif 2129
Indexes created Sat Feb 28 05:31:39 UTC 2026