s_client.c revision 325337
1/* apps/s_client.c */ 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 * 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 156typedef 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 202extern int verify_depth; 203extern int verify_error; 204extern int verify_return_error; 205extern int verify_quiet; 206 207#ifdef FIONBIO 208static int c_nbio = 0; 209#endif 210static int c_Pause = 0; 211static int c_debug = 0; 212#ifndef OPENSSL_NO_TLSEXT 213static int c_tlsextdebug = 0; 214static int c_status_req = 0; 215#endif 216static int c_msg = 0; 217static int c_showcerts = 0; 218 219static char *keymatexportlabel = NULL; 220static int keymatexportlen = 20; 221 222static void sc_usage(void); 223static void print_stuff(BIO *berr, SSL *con, int full); 224#ifndef OPENSSL_NO_TLSEXT 225static int ocsp_resp_cb(SSL *s, void *arg); 226#endif 227static BIO *bio_c_out = NULL; 228static BIO *bio_c_msg = NULL; 229static int c_quiet = 0; 230static int c_ign_eof = 0; 231static int c_brief = 0; 232 233#ifndef OPENSSL_NO_PSK 234/* Default PSK identity and key */ 235static char *psk_identity = "Client_identity"; 236/* 237 * char *psk_key=NULL; by default PSK is not used 238 */ 239 240static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, 241 unsigned int max_identity_len, 242 unsigned char *psk, 243 unsigned int max_psk_len) 244{ 245 int ret; 246 long key_len; 247 unsigned char *key; 248 249 if (c_debug) 250 BIO_printf(bio_c_out, "psk_client_cb\n"); 251 if (!hint) { 252 /* no ServerKeyExchange message */ 253 if (c_debug) 254 BIO_printf(bio_c_out, 255 "NULL received PSK identity hint, continuing anyway\n"); 256 } else if (c_debug) 257 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); 258 259 /* 260 * lookup PSK identity and PSK key based on the given identity hint here 261 */ 262 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity); 263 if (ret < 0 || (unsigned int)ret > max_identity_len) 264 goto out_err; 265 if (c_debug) 266 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, 267 ret); 268 269 /* convert the PSK key to binary */ 270 key = string_to_hex(psk_key, &key_len); 271 if (key == NULL) { 272 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", 273 psk_key); 274 return 0; 275 } 276 if ((unsigned long)key_len > (unsigned long)max_psk_len) { 277 BIO_printf(bio_err, 278 "psk buffer of callback is too small (%d) for key (%ld)\n", 279 max_psk_len, key_len); 280 OPENSSL_free(key); 281 return 0; 282 } 283 284 memcpy(psk, key, key_len); 285 OPENSSL_free(key); 286 287 if (c_debug) 288 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len); 289 290 return key_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 298static 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 BIO_printf(bio_err, 308 " -verify_hostname host - check peer certificate matches \"host\"\n"); 309 BIO_printf(bio_err, 310 " -verify_email email - check peer certificate matches \"email\"\n"); 311 BIO_printf(bio_err, 312 " -verify_ip ipaddr - check peer certificate matches \"ipaddr\"\n"); 313 314 BIO_printf(bio_err, 315 " -verify arg - turn on peer certificate verification\n"); 316 BIO_printf(bio_err, 317 " -verify_return_error - return verification errors\n"); 318 BIO_printf(bio_err, 319 " -cert arg - certificate file to use, PEM format assumed\n"); 320 BIO_printf(bio_err, 321 " -certform arg - certificate format (PEM or DER) PEM default\n"); 322 BIO_printf(bio_err, 323 " -key arg - Private key file to use, in cert file if\n"); 324 BIO_printf(bio_err, " not specified but cert file is.\n"); 325 BIO_printf(bio_err, 326 " -keyform arg - key format (PEM or DER) PEM default\n"); 327 BIO_printf(bio_err, 328 " -pass arg - private key file pass phrase source\n"); 329 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n"); 330 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n"); 331 BIO_printf(bio_err, 332 " -no_alt_chains - only ever use the first certificate chain found\n"); 333 BIO_printf(bio_err, 334 " -reconnect - Drop and re-make the connection with the same Session-ID\n"); 335 BIO_printf(bio_err, 336 " -pause - sleep(1) after each read(2) and write(2) system call\n"); 337 BIO_printf(bio_err, 338 " -prexit - print session information even on connection failure\n"); 339 BIO_printf(bio_err, 340 " -showcerts - show all certificates in the chain\n"); 341 BIO_printf(bio_err, " -debug - extra output\n"); 342#ifdef WATT32 343 BIO_printf(bio_err, " -wdebug - WATT-32 tcp debugging\n"); 344#endif 345 BIO_printf(bio_err, " -msg - Show protocol messages\n"); 346 BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n"); 347 BIO_printf(bio_err, " -state - print the 'ssl' states\n"); 348#ifdef FIONBIO 349 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n"); 350#endif 351 BIO_printf(bio_err, 352 " -crlf - convert LF from terminal into CRLF\n"); 353 BIO_printf(bio_err, " -quiet - no s_client output\n"); 354 BIO_printf(bio_err, 355 " -ign_eof - ignore input eof (default when -quiet)\n"); 356 BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n"); 357#ifndef OPENSSL_NO_PSK 358 BIO_printf(bio_err, " -psk_identity arg - PSK identity\n"); 359 BIO_printf(bio_err, " -psk arg - PSK in hex (without 0x)\n"); 360# ifndef OPENSSL_NO_JPAKE 361 BIO_printf(bio_err, " -jpake arg - JPAKE secret to use\n"); 362# endif 363#endif 364#ifndef OPENSSL_NO_SRP 365 BIO_printf(bio_err, 366 " -srpuser user - SRP authentification for 'user'\n"); 367 BIO_printf(bio_err, " -srppass arg - password for 'user'\n"); 368 BIO_printf(bio_err, 369 " -srp_lateuser - SRP username into second ClientHello message\n"); 370 BIO_printf(bio_err, 371 " -srp_moregroups - Tolerate other than the known g N values.\n"); 372 BIO_printf(bio_err, 373 " -srp_strength int - minimal length in bits for N (default %d).\n", 374 SRP_MINIMAL_N); 375#endif 376 BIO_printf(bio_err, " -ssl2 - just use SSLv2\n"); 377#ifndef OPENSSL_NO_SSL3_METHOD 378 BIO_printf(bio_err, " -ssl3 - just use SSLv3\n"); 379#endif 380 BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n"); 381 BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n"); 382 BIO_printf(bio_err, " -tls1 - just use TLSv1\n"); 383 BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n"); 384 BIO_printf(bio_err, " -fallback_scsv - send TLS_FALLBACK_SCSV\n"); 385 BIO_printf(bio_err, " -mtu - set the link layer MTU\n"); 386 BIO_printf(bio_err, 387 " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); 388 BIO_printf(bio_err, 389 " -bugs - Switch on all SSL implementation bug workarounds\n"); 390 BIO_printf(bio_err, 391 " -cipher - preferred cipher to use, use the 'openssl ciphers'\n"); 392 BIO_printf(bio_err, 393 " command to see what is available\n"); 394 BIO_printf(bio_err, 395 " -starttls prot - use the STARTTLS command before starting TLS\n"); 396 BIO_printf(bio_err, 397 " for those protocols that support it, where\n"); 398 BIO_printf(bio_err, 399 " 'prot' defines which one to assume. Currently,\n"); 400 BIO_printf(bio_err, 401 " only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n"); 402 BIO_printf(bio_err, " are supported.\n"); 403#ifndef OPENSSL_NO_ENGINE 404 BIO_printf(bio_err, 405 " -engine id - Initialise and use the specified engine\n"); 406#endif 407 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, 408 LIST_SEPARATOR_CHAR); 409 BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n"); 410 BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n"); 411#ifndef OPENSSL_NO_TLSEXT 412 BIO_printf(bio_err, 413 " -servername host - Set TLS extension servername in ClientHello\n"); 414 BIO_printf(bio_err, 415 " -tlsextdebug - hex dump of all TLS extensions received\n"); 416 BIO_printf(bio_err, 417 " -status - request certificate status from server\n"); 418 BIO_printf(bio_err, 419 " -no_ticket - disable use of RFC4507bis session tickets\n"); 420 BIO_printf(bio_err, 421 " -serverinfo types - send empty ClientHello extensions (comma-separated numbers)\n"); 422 BIO_printf(bio_err, 423 " -curves arg - Elliptic curves to advertise (colon-separated list)\n"); 424 BIO_printf(bio_err, 425 " -sigalgs arg - Signature algorithms to support (colon-separated list)\n"); 426 BIO_printf(bio_err, 427 " -client_sigalgs arg - Signature algorithms to support for client\n"); 428 BIO_printf(bio_err, 429 " certificate authentication (colon-separated list)\n"); 430#endif 431#ifndef OPENSSL_NO_NEXTPROTONEG 432 BIO_printf(bio_err, 433 " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n"); 434#endif 435 BIO_printf(bio_err, 436 " -alpn arg - enable ALPN extension, considering named protocols supported (comma-separated list)\n"); 437 BIO_printf(bio_err, 438 " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n"); 439#ifndef OPENSSL_NO_SRTP 440 BIO_printf(bio_err, 441 " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 442#endif 443 BIO_printf(bio_err, 444 " -keymatexport label - Export keying material using label\n"); 445 BIO_printf(bio_err, 446 " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 447} 448 449#ifndef OPENSSL_NO_TLSEXT 450 451/* This is a context that we pass to callbacks */ 452typedef struct tlsextctx_st { 453 BIO *biodebug; 454 int ack; 455} tlsextctx; 456 457static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg) 458{ 459 tlsextctx *p = (tlsextctx *) arg; 460 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 461 if (SSL_get_servername_type(s) != -1) 462 p->ack = !SSL_session_reused(s) && hn != NULL; 463 else 464 BIO_printf(bio_err, "Can't use SSL_get_servername\n"); 465 466 return SSL_TLSEXT_ERR_OK; 467} 468 469# ifndef OPENSSL_NO_SRP 470 471/* This is a context that we pass to all callbacks */ 472typedef struct srp_arg_st { 473 char *srppassin; 474 char *srplogin; 475 int msg; /* copy from c_msg */ 476 int debug; /* copy from c_debug */ 477 int amp; /* allow more groups */ 478 int strength /* minimal size for N */ ; 479} SRP_ARG; 480 481# define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 482 483static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g) 484{ 485 BN_CTX *bn_ctx = BN_CTX_new(); 486 BIGNUM *p = BN_new(); 487 BIGNUM *r = BN_new(); 488 int ret = 489 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && 490 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 491 p != NULL && BN_rshift1(p, N) && 492 /* p = (N-1)/2 */ 493 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 494 r != NULL && 495 /* verify g^((N-1)/2) == -1 (mod N) */ 496 BN_mod_exp(r, g, p, N, bn_ctx) && 497 BN_add_word(r, 1) && BN_cmp(r, N) == 0; 498 499 if (r) 500 BN_free(r); 501 if (p) 502 BN_free(p); 503 if (bn_ctx) 504 BN_CTX_free(bn_ctx); 505 return ret; 506} 507 508/*- 509 * This callback is used here for two purposes: 510 * - extended debugging 511 * - making some primality tests for unknown groups 512 * The callback is only called for a non default group. 513 * 514 * An application does not need the call back at all if 515 * only the stanard groups are used. In real life situations, 516 * client and server already share well known groups, 517 * thus there is no need to verify them. 518 * Furthermore, in case that a server actually proposes a group that 519 * is not one of those defined in RFC 5054, it is more appropriate 520 * to add the group to a static list and then compare since 521 * primality tests are rather cpu consuming. 522 */ 523 524static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg) 525{ 526 SRP_ARG *srp_arg = (SRP_ARG *)arg; 527 BIGNUM *N = NULL, *g = NULL; 528 if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s))) 529 return 0; 530 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) { 531 BIO_printf(bio_err, "SRP parameters:\n"); 532 BIO_printf(bio_err, "\tN="); 533 BN_print(bio_err, N); 534 BIO_printf(bio_err, "\n\tg="); 535 BN_print(bio_err, g); 536 BIO_printf(bio_err, "\n"); 537 } 538 539 if (SRP_check_known_gN_param(g, N)) 540 return 1; 541 542 if (srp_arg->amp == 1) { 543 if (srp_arg->debug) 544 BIO_printf(bio_err, 545 "SRP param N and g are not known params, going to check deeper.\n"); 546 547 /* 548 * The srp_moregroups is a real debugging feature. Implementors 549 * should rather add the value to the known ones. The minimal size 550 * has already been tested. 551 */ 552 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g)) 553 return 1; 554 } 555 BIO_printf(bio_err, "SRP param N and g rejected.\n"); 556 return 0; 557} 558 559# define PWD_STRLEN 1024 560 561static char *MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg) 562{ 563 SRP_ARG *srp_arg = (SRP_ARG *)arg; 564 char *pass = (char *)OPENSSL_malloc(PWD_STRLEN + 1); 565 PW_CB_DATA cb_tmp; 566 int l; 567 568 if (!pass) { 569 BIO_printf(bio_err, "Malloc failure\n"); 570 return NULL; 571 } 572 573 cb_tmp.password = (char *)srp_arg->srppassin; 574 cb_tmp.prompt_info = "SRP user"; 575 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) { 576 BIO_printf(bio_err, "Can't read Password\n"); 577 OPENSSL_free(pass); 578 return NULL; 579 } 580 *(pass + l) = '\0'; 581 582 return pass; 583} 584 585# endif 586# ifndef OPENSSL_NO_SRTP 587char *srtp_profiles = NULL; 588# endif 589 590# ifndef OPENSSL_NO_NEXTPROTONEG 591/* This the context that we pass to next_proto_cb */ 592typedef struct tlsextnextprotoctx_st { 593 unsigned char *data; 594 unsigned short len; 595 int status; 596} tlsextnextprotoctx; 597 598static tlsextnextprotoctx next_proto; 599 600static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, 601 const unsigned char *in, unsigned int inlen, 602 void *arg) 603{ 604 tlsextnextprotoctx *ctx = arg; 605 606 if (!c_quiet) { 607 /* We can assume that |in| is syntactically valid. */ 608 unsigned i; 609 BIO_printf(bio_c_out, "Protocols advertised by server: "); 610 for (i = 0; i < inlen;) { 611 if (i) 612 BIO_write(bio_c_out, ", ", 2); 613 BIO_write(bio_c_out, &in[i + 1], in[i]); 614 i += in[i] + 1; 615 } 616 BIO_write(bio_c_out, "\n", 1); 617 } 618 619 ctx->status = 620 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); 621 return SSL_TLSEXT_ERR_OK; 622} 623# endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 624 625static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type, 626 const unsigned char *in, size_t inlen, 627 int *al, void *arg) 628{ 629 char pem_name[100]; 630 unsigned char ext_buf[4 + 65536]; 631 632 /* Reconstruct the type/len fields prior to extension data */ 633 ext_buf[0] = ext_type >> 8; 634 ext_buf[1] = ext_type & 0xFF; 635 ext_buf[2] = inlen >> 8; 636 ext_buf[3] = inlen & 0xFF; 637 memcpy(ext_buf + 4, in, inlen); 638 639 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d", 640 ext_type); 641 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen); 642 return 1; 643} 644 645#endif 646 647enum { 648 PROTO_OFF = 0, 649 PROTO_SMTP, 650 PROTO_POP3, 651 PROTO_IMAP, 652 PROTO_FTP, 653 PROTO_XMPP 654}; 655 656int MAIN(int, char **); 657 658int MAIN(int argc, char **argv) 659{ 660 int build_chain = 0; 661 SSL *con = NULL; 662#ifndef OPENSSL_NO_KRB5 663 KSSL_CTX *kctx; 664#endif 665 int s, k, width, state = 0; 666 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL; 667 int cbuf_len, cbuf_off; 668 int sbuf_len, sbuf_off; 669 fd_set readfds, writefds; 670 short port = PORT; 671 int full_log = 1; 672 char *host = SSL_HOST_NAME; 673 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL; 674 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 675 char *passarg = NULL, *pass = NULL; 676 X509 *cert = NULL; 677 EVP_PKEY *key = NULL; 678 STACK_OF(X509) *chain = NULL; 679 char *CApath = NULL, *CAfile = NULL; 680 char *chCApath = NULL, *chCAfile = NULL; 681 char *vfyCApath = NULL, *vfyCAfile = NULL; 682 int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE; 683 int crlf = 0; 684 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; 685 SSL_CTX *ctx = NULL; 686 int ret = 1, in_init = 1, i, nbio_test = 0; 687 int starttls_proto = PROTO_OFF; 688 int prexit = 0; 689 X509_VERIFY_PARAM *vpm = NULL; 690 int badarg = 0; 691 const SSL_METHOD *meth = NULL; 692 int socket_type = SOCK_STREAM; 693 BIO *sbio; 694 char *inrand = NULL; 695 int mbuf_len = 0; 696 struct timeval timeout, *timeoutp; 697 char *engine_id = NULL; 698 ENGINE *e = NULL; 699#ifndef OPENSSL_NO_ENGINE 700 char *ssl_client_engine_id = NULL; 701 ENGINE *ssl_client_engine = NULL; 702#endif 703#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 704 struct timeval tv; 705# if defined(OPENSSL_SYS_BEOS_R5) 706 int stdin_set = 0; 707# endif 708#endif 709#ifndef OPENSSL_NO_TLSEXT 710 char *servername = NULL; 711 tlsextctx tlsextcbp = { NULL, 0 }; 712# ifndef OPENSSL_NO_NEXTPROTONEG 713 const char *next_proto_neg_in = NULL; 714# endif 715 const char *alpn_in = NULL; 716# define MAX_SI_TYPES 100 717 unsigned short serverinfo_types[MAX_SI_TYPES]; 718 int serverinfo_types_count = 0; 719#endif 720 char *sess_in = NULL; 721 char *sess_out = NULL; 722 struct sockaddr peer; 723 int peerlen = sizeof(peer); 724 int fallback_scsv = 0; 725 int enable_timeouts = 0; 726 long socket_mtu = 0; 727#ifndef OPENSSL_NO_JPAKE 728 static char *jpake_secret = NULL; 729# define no_jpake !jpake_secret 730#else 731# define no_jpake 1 732#endif 733#ifndef OPENSSL_NO_SRP 734 char *srppass = NULL; 735 int srp_lateuser = 0; 736 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; 737#endif 738 SSL_EXCERT *exc = NULL; 739 740 SSL_CONF_CTX *cctx = NULL; 741 STACK_OF(OPENSSL_STRING) *ssl_args = NULL; 742 743 char *crl_file = NULL; 744 int crl_format = FORMAT_PEM; 745 int crl_download = 0; 746 STACK_OF(X509_CRL) *crls = NULL; 747 int prot_opt = 0, no_prot_opt = 0; 748 749 meth = SSLv23_client_method(); 750 751 apps_startup(); 752 c_Pause = 0; 753 c_quiet = 0; 754 c_ign_eof = 0; 755 c_debug = 0; 756 c_msg = 0; 757 c_showcerts = 0; 758 759 if (bio_err == NULL) 760 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 761 762 if (!load_config(bio_err, NULL)) 763 goto end; 764 765 cctx = SSL_CONF_CTX_new(); 766 if (!cctx) 767 goto end; 768 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT); 769 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE); 770 771 if (((cbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 772 ((sbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 773 ((mbuf = OPENSSL_malloc(BUFSIZZ)) == NULL)) { 774 BIO_printf(bio_err, "out of memory\n"); 775 goto end; 776 } 777 778 verify_depth = 0; 779 verify_error = X509_V_OK; 780#ifdef FIONBIO 781 c_nbio = 0; 782#endif 783 784 argc--; 785 argv++; 786 while (argc >= 1) { 787 if (strcmp(*argv, "-host") == 0) { 788 if (--argc < 1) 789 goto bad; 790 host = *(++argv); 791 } else if (strcmp(*argv, "-port") == 0) { 792 if (--argc < 1) 793 goto bad; 794 port = atoi(*(++argv)); 795 if (port == 0) 796 goto bad; 797 } else if (strcmp(*argv, "-connect") == 0) { 798 if (--argc < 1) 799 goto bad; 800 if (!extract_host_port(*(++argv), &host, NULL, &port)) 801 goto bad; 802 } else if (strcmp(*argv, "-verify") == 0) { 803 verify = SSL_VERIFY_PEER; 804 if (--argc < 1) 805 goto bad; 806 verify_depth = atoi(*(++argv)); 807 if (!c_quiet) 808 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 809 } else if (strcmp(*argv, "-cert") == 0) { 810 if (--argc < 1) 811 goto bad; 812 cert_file = *(++argv); 813 } else if (strcmp(*argv, "-CRL") == 0) { 814 if (--argc < 1) 815 goto bad; 816 crl_file = *(++argv); 817 } else if (strcmp(*argv, "-crl_download") == 0) 818 crl_download = 1; 819 else if (strcmp(*argv, "-sess_out") == 0) { 820 if (--argc < 1) 821 goto bad; 822 sess_out = *(++argv); 823 } else if (strcmp(*argv, "-sess_in") == 0) { 824 if (--argc < 1) 825 goto bad; 826 sess_in = *(++argv); 827 } else if (strcmp(*argv, "-certform") == 0) { 828 if (--argc < 1) 829 goto bad; 830 cert_format = str2fmt(*(++argv)); 831 } else if (strcmp(*argv, "-CRLform") == 0) { 832 if (--argc < 1) 833 goto bad; 834 crl_format = str2fmt(*(++argv)); 835 } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 836 if (badarg) 837 goto bad; 838 continue; 839 } else if (strcmp(*argv, "-verify_return_error") == 0) 840 verify_return_error = 1; 841 else if (strcmp(*argv, "-verify_quiet") == 0) 842 verify_quiet = 1; 843 else if (strcmp(*argv, "-brief") == 0) { 844 c_brief = 1; 845 verify_quiet = 1; 846 c_quiet = 1; 847 } else if (args_excert(&argv, &argc, &badarg, bio_err, &exc)) { 848 if (badarg) 849 goto bad; 850 continue; 851 } else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args, 852 &no_prot_opt)) { 853 if (badarg) 854 goto bad; 855 continue; 856 } else if (strcmp(*argv, "-prexit") == 0) 857 prexit = 1; 858 else if (strcmp(*argv, "-crlf") == 0) 859 crlf = 1; 860 else if (strcmp(*argv, "-quiet") == 0) { 861 c_quiet = 1; 862 c_ign_eof = 1; 863 } else if (strcmp(*argv, "-ign_eof") == 0) 864 c_ign_eof = 1; 865 else if (strcmp(*argv, "-no_ign_eof") == 0) 866 c_ign_eof = 0; 867 else if (strcmp(*argv, "-pause") == 0) 868 c_Pause = 1; 869 else if (strcmp(*argv, "-debug") == 0) 870 c_debug = 1; 871#ifndef OPENSSL_NO_TLSEXT 872 else if (strcmp(*argv, "-tlsextdebug") == 0) 873 c_tlsextdebug = 1; 874 else if (strcmp(*argv, "-status") == 0) 875 c_status_req = 1; 876#endif 877#ifdef WATT32 878 else if (strcmp(*argv, "-wdebug") == 0) 879 dbug_init(); 880#endif 881 else if (strcmp(*argv, "-msg") == 0) 882 c_msg = 1; 883 else if (strcmp(*argv, "-msgfile") == 0) { 884 if (--argc < 1) 885 goto bad; 886 bio_c_msg = BIO_new_file(*(++argv), "w"); 887 } 888#ifndef OPENSSL_NO_SSL_TRACE 889 else if (strcmp(*argv, "-trace") == 0) 890 c_msg = 2; 891#endif 892 else if (strcmp(*argv, "-showcerts") == 0) 893 c_showcerts = 1; 894 else if (strcmp(*argv, "-nbio_test") == 0) 895 nbio_test = 1; 896 else if (strcmp(*argv, "-state") == 0) 897 state = 1; 898#ifndef OPENSSL_NO_PSK 899 else if (strcmp(*argv, "-psk_identity") == 0) { 900 if (--argc < 1) 901 goto bad; 902 psk_identity = *(++argv); 903 } else if (strcmp(*argv, "-psk") == 0) { 904 size_t j; 905 906 if (--argc < 1) 907 goto bad; 908 psk_key = *(++argv); 909 for (j = 0; j < strlen(psk_key); j++) { 910 if (isxdigit((unsigned char)psk_key[j])) 911 continue; 912 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv); 913 goto bad; 914 } 915 } 916#endif 917#ifndef OPENSSL_NO_SRP 918 else if (strcmp(*argv, "-srpuser") == 0) { 919 if (--argc < 1) 920 goto bad; 921 srp_arg.srplogin = *(++argv); 922 meth = TLSv1_client_method(); 923 } else if (strcmp(*argv, "-srppass") == 0) { 924 if (--argc < 1) 925 goto bad; 926 srppass = *(++argv); 927 meth = TLSv1_client_method(); 928 } else if (strcmp(*argv, "-srp_strength") == 0) { 929 if (--argc < 1) 930 goto bad; 931 srp_arg.strength = atoi(*(++argv)); 932 BIO_printf(bio_err, "SRP minimal length for N is %d\n", 933 srp_arg.strength); 934 meth = TLSv1_client_method(); 935 } else if (strcmp(*argv, "-srp_lateuser") == 0) { 936 srp_lateuser = 1; 937 meth = TLSv1_client_method(); 938 } else if (strcmp(*argv, "-srp_moregroups") == 0) { 939 srp_arg.amp = 1; 940 meth = TLSv1_client_method(); 941 } 942#endif 943#ifndef OPENSSL_NO_SSL2 944 else if (strcmp(*argv, "-ssl2") == 0) { 945 meth = SSLv2_client_method(); 946 prot_opt++; 947 } 948#endif 949#ifndef OPENSSL_NO_SSL3_METHOD 950 else if (strcmp(*argv, "-ssl3") == 0) { 951 meth = SSLv3_client_method(); 952 prot_opt++; 953 } 954#endif 955#ifndef OPENSSL_NO_TLS1 956 else if (strcmp(*argv, "-tls1_2") == 0) { 957 meth = TLSv1_2_client_method(); 958 prot_opt++; 959 } else if (strcmp(*argv, "-tls1_1") == 0) { 960 meth = TLSv1_1_client_method(); 961 prot_opt++; 962 } else if (strcmp(*argv, "-tls1") == 0) { 963 meth = TLSv1_client_method(); 964 prot_opt++; 965 } 966#endif 967#ifndef OPENSSL_NO_DTLS1 968 else if (strcmp(*argv, "-dtls") == 0) { 969 meth = DTLS_client_method(); 970 socket_type = SOCK_DGRAM; 971 prot_opt++; 972 } else if (strcmp(*argv, "-dtls1") == 0) { 973 meth = DTLSv1_client_method(); 974 socket_type = SOCK_DGRAM; 975 prot_opt++; 976 } else if (strcmp(*argv, "-dtls1_2") == 0) { 977 meth = DTLSv1_2_client_method(); 978 socket_type = SOCK_DGRAM; 979 prot_opt++; 980 } else if (strcmp(*argv, "-timeout") == 0) 981 enable_timeouts = 1; 982 else if (strcmp(*argv, "-mtu") == 0) { 983 if (--argc < 1) 984 goto bad; 985 socket_mtu = atol(*(++argv)); 986 } 987#endif 988 else if (strcmp(*argv, "-fallback_scsv") == 0) { 989 fallback_scsv = 1; 990 } else if (strcmp(*argv, "-keyform") == 0) { 991 if (--argc < 1) 992 goto bad; 993 key_format = str2fmt(*(++argv)); 994 } else if (strcmp(*argv, "-pass") == 0) { 995 if (--argc < 1) 996 goto bad; 997 passarg = *(++argv); 998 } else if (strcmp(*argv, "-cert_chain") == 0) { 999 if (--argc < 1) 1000 goto bad; 1001 chain_file = *(++argv); 1002 } else if (strcmp(*argv, "-key") == 0) { 1003 if (--argc < 1) 1004 goto bad; 1005 key_file = *(++argv); 1006 } else if (strcmp(*argv, "-reconnect") == 0) { 1007 reconnect = 5; 1008 } else if (strcmp(*argv, "-CApath") == 0) { 1009 if (--argc < 1) 1010 goto bad; 1011 CApath = *(++argv); 1012 } else if (strcmp(*argv, "-chainCApath") == 0) { 1013 if (--argc < 1) 1014 goto bad; 1015 chCApath = *(++argv); 1016 } else if (strcmp(*argv, "-verifyCApath") == 0) { 1017 if (--argc < 1) 1018 goto bad; 1019 vfyCApath = *(++argv); 1020 } else if (strcmp(*argv, "-build_chain") == 0) 1021 build_chain = 1; 1022 else if (strcmp(*argv, "-CAfile") == 0) { 1023 if (--argc < 1) 1024 goto bad; 1025 CAfile = *(++argv); 1026 } else if (strcmp(*argv, "-chainCAfile") == 0) { 1027 if (--argc < 1) 1028 goto bad; 1029 chCAfile = *(++argv); 1030 } else if (strcmp(*argv, "-verifyCAfile") == 0) { 1031 if (--argc < 1) 1032 goto bad; 1033 vfyCAfile = *(++argv); 1034 } 1035#ifndef OPENSSL_NO_TLSEXT 1036# ifndef OPENSSL_NO_NEXTPROTONEG 1037 else if (strcmp(*argv, "-nextprotoneg") == 0) { 1038 if (--argc < 1) 1039 goto bad; 1040 next_proto_neg_in = *(++argv); 1041 } 1042# endif 1043 else if (strcmp(*argv, "-alpn") == 0) { 1044 if (--argc < 1) 1045 goto bad; 1046 alpn_in = *(++argv); 1047 } else if (strcmp(*argv, "-serverinfo") == 0) { 1048 char *c; 1049 int start = 0; 1050 int len; 1051 1052 if (--argc < 1) 1053 goto bad; 1054 c = *(++argv); 1055 serverinfo_types_count = 0; 1056 len = strlen(c); 1057 for (i = 0; i <= len; ++i) { 1058 if (i == len || c[i] == ',') { 1059 serverinfo_types[serverinfo_types_count] 1060 = atoi(c + start); 1061 serverinfo_types_count++; 1062 start = i + 1; 1063 } 1064 if (serverinfo_types_count == MAX_SI_TYPES) 1065 break; 1066 } 1067 } 1068#endif 1069#ifdef FIONBIO 1070 else if (strcmp(*argv, "-nbio") == 0) { 1071 c_nbio = 1; 1072 } 1073#endif 1074 else if (strcmp(*argv, "-starttls") == 0) { 1075 if (--argc < 1) 1076 goto bad; 1077 ++argv; 1078 if (strcmp(*argv, "smtp") == 0) 1079 starttls_proto = PROTO_SMTP; 1080 else if (strcmp(*argv, "pop3") == 0) 1081 starttls_proto = PROTO_POP3; 1082 else if (strcmp(*argv, "imap") == 0) 1083 starttls_proto = PROTO_IMAP; 1084 else if (strcmp(*argv, "ftp") == 0) 1085 starttls_proto = PROTO_FTP; 1086 else if (strcmp(*argv, "xmpp") == 0) 1087 starttls_proto = PROTO_XMPP; 1088 else 1089 goto bad; 1090 } 1091#ifndef OPENSSL_NO_ENGINE 1092 else if (strcmp(*argv, "-engine") == 0) { 1093 if (--argc < 1) 1094 goto bad; 1095 engine_id = *(++argv); 1096 } else if (strcmp(*argv, "-ssl_client_engine") == 0) { 1097 if (--argc < 1) 1098 goto bad; 1099 ssl_client_engine_id = *(++argv); 1100 } 1101#endif 1102 else if (strcmp(*argv, "-rand") == 0) { 1103 if (--argc < 1) 1104 goto bad; 1105 inrand = *(++argv); 1106 } 1107#ifndef OPENSSL_NO_TLSEXT 1108 else if (strcmp(*argv, "-servername") == 0) { 1109 if (--argc < 1) 1110 goto bad; 1111 servername = *(++argv); 1112 /* meth=TLSv1_client_method(); */ 1113 } 1114#endif 1115#ifndef OPENSSL_NO_JPAKE 1116 else if (strcmp(*argv, "-jpake") == 0) { 1117 if (--argc < 1) 1118 goto bad; 1119 jpake_secret = *++argv; 1120 } 1121#endif 1122#ifndef OPENSSL_NO_SRTP 1123 else if (strcmp(*argv, "-use_srtp") == 0) { 1124 if (--argc < 1) 1125 goto bad; 1126 srtp_profiles = *(++argv); 1127 } 1128#endif 1129 else if (strcmp(*argv, "-keymatexport") == 0) { 1130 if (--argc < 1) 1131 goto bad; 1132 keymatexportlabel = *(++argv); 1133 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 1134 if (--argc < 1) 1135 goto bad; 1136 keymatexportlen = atoi(*(++argv)); 1137 if (keymatexportlen == 0) 1138 goto bad; 1139 } else { 1140 BIO_printf(bio_err, "unknown option %s\n", *argv); 1141 badop = 1; 1142 break; 1143 } 1144 argc--; 1145 argv++; 1146 } 1147 if (badop) { 1148 bad: 1149 sc_usage(); 1150 goto end; 1151 } 1152#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK) 1153 if (jpake_secret) { 1154 if (psk_key) { 1155 BIO_printf(bio_err, "Can't use JPAKE and PSK together\n"); 1156 goto end; 1157 } 1158 psk_identity = "JPAKE"; 1159 } 1160#endif 1161 1162 if (prot_opt > 1) { 1163 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); 1164 goto end; 1165 } 1166 1167 if (prot_opt == 1 && no_prot_opt) { 1168 BIO_printf(bio_err, "Cannot supply both a protocol flag and " 1169 "\"-no_<prot>\"\n"); 1170 goto end; 1171 } 1172 1173 OpenSSL_add_ssl_algorithms(); 1174 SSL_load_error_strings(); 1175 1176#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1177 next_proto.status = -1; 1178 if (next_proto_neg_in) { 1179 next_proto.data = 1180 next_protos_parse(&next_proto.len, next_proto_neg_in); 1181 if (next_proto.data == NULL) { 1182 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1183 goto end; 1184 } 1185 } else 1186 next_proto.data = NULL; 1187#endif 1188 1189 e = setup_engine(bio_err, engine_id, 1); 1190#ifndef OPENSSL_NO_ENGINE 1191 if (ssl_client_engine_id) { 1192 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id); 1193 if (!ssl_client_engine) { 1194 BIO_printf(bio_err, "Error getting client auth engine\n"); 1195 goto end; 1196 } 1197 } 1198#endif 1199 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { 1200 BIO_printf(bio_err, "Error getting password\n"); 1201 goto end; 1202 } 1203 1204 if (key_file == NULL) 1205 key_file = cert_file; 1206 1207 if (key_file) { 1208 1209 key = load_key(bio_err, key_file, key_format, 0, pass, e, 1210 "client certificate private key file"); 1211 if (!key) { 1212 ERR_print_errors(bio_err); 1213 goto end; 1214 } 1215 1216 } 1217 1218 if (cert_file) { 1219 cert = load_cert(bio_err, cert_file, cert_format, 1220 NULL, e, "client certificate file"); 1221 1222 if (!cert) { 1223 ERR_print_errors(bio_err); 1224 goto end; 1225 } 1226 } 1227 1228 if (chain_file) { 1229 chain = load_certs(bio_err, chain_file, FORMAT_PEM, 1230 NULL, e, "client certificate chain"); 1231 if (!chain) 1232 goto end; 1233 } 1234 1235 if (crl_file) { 1236 X509_CRL *crl; 1237 crl = load_crl(crl_file, crl_format); 1238 if (!crl) { 1239 BIO_puts(bio_err, "Error loading CRL\n"); 1240 ERR_print_errors(bio_err); 1241 goto end; 1242 } 1243 crls = sk_X509_CRL_new_null(); 1244 if (!crls || !sk_X509_CRL_push(crls, crl)) { 1245 BIO_puts(bio_err, "Error adding CRL\n"); 1246 ERR_print_errors(bio_err); 1247 X509_CRL_free(crl); 1248 goto end; 1249 } 1250 } 1251 1252 if (!load_excert(&exc, bio_err)) 1253 goto end; 1254 1255 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 1256 && !RAND_status()) { 1257 BIO_printf(bio_err, 1258 "warning, not much extra random data, consider using the -rand option\n"); 1259 } 1260 if (inrand != NULL) 1261 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 1262 app_RAND_load_files(inrand)); 1263 1264 if (bio_c_out == NULL) { 1265 if (c_quiet && !c_debug) { 1266 bio_c_out = BIO_new(BIO_s_null()); 1267 if (c_msg && !bio_c_msg) 1268 bio_c_msg = BIO_new_fp(stdout, BIO_NOCLOSE); 1269 } else { 1270 if (bio_c_out == NULL) 1271 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE); 1272 } 1273 } 1274#ifndef OPENSSL_NO_SRP 1275 if (!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL)) { 1276 BIO_printf(bio_err, "Error getting password\n"); 1277 goto end; 1278 } 1279#endif 1280 1281 ctx = SSL_CTX_new(meth); 1282 if (ctx == NULL) { 1283 ERR_print_errors(bio_err); 1284 goto end; 1285 } 1286 1287 if (vpm) 1288 SSL_CTX_set1_param(ctx, vpm); 1289 1290 if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1, no_jpake)) { 1291 ERR_print_errors(bio_err); 1292 goto end; 1293 } 1294 1295 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, 1296 crls, crl_download)) { 1297 BIO_printf(bio_err, "Error loading store locations\n"); 1298 ERR_print_errors(bio_err); 1299 goto end; 1300 } 1301#ifndef OPENSSL_NO_ENGINE 1302 if (ssl_client_engine) { 1303 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { 1304 BIO_puts(bio_err, "Error setting client auth engine\n"); 1305 ERR_print_errors(bio_err); 1306 ENGINE_free(ssl_client_engine); 1307 goto end; 1308 } 1309 ENGINE_free(ssl_client_engine); 1310 } 1311#endif 1312 1313#ifndef OPENSSL_NO_PSK 1314# ifdef OPENSSL_NO_JPAKE 1315 if (psk_key != NULL) 1316# else 1317 if (psk_key != NULL || jpake_secret) 1318# endif 1319 { 1320 if (c_debug) 1321 BIO_printf(bio_c_out, 1322 "PSK key given or JPAKE in use, setting client callback\n"); 1323 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1324 } 1325#endif 1326#ifndef OPENSSL_NO_SRTP 1327 if (srtp_profiles != NULL) 1328 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 1329#endif 1330 if (exc) 1331 ssl_ctx_set_excert(ctx, exc); 1332 1333#if !defined(OPENSSL_NO_TLSEXT) 1334# if !defined(OPENSSL_NO_NEXTPROTONEG) 1335 if (next_proto.data) 1336 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1337# endif 1338 if (alpn_in) { 1339 unsigned short alpn_len; 1340 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); 1341 1342 if (alpn == NULL) { 1343 BIO_printf(bio_err, "Error parsing -alpn argument\n"); 1344 goto end; 1345 } 1346 SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len); 1347 OPENSSL_free(alpn); 1348 } 1349#endif 1350#ifndef OPENSSL_NO_TLSEXT 1351 for (i = 0; i < serverinfo_types_count; i++) { 1352 SSL_CTX_add_client_custom_ext(ctx, 1353 serverinfo_types[i], 1354 NULL, NULL, NULL, 1355 serverinfo_cli_parse_cb, NULL); 1356 } 1357#endif 1358 1359 if (state) 1360 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1361#if 0 1362 else 1363 SSL_CTX_set_cipher_list(ctx, getenv("SSL_CIPHER")); 1364#endif 1365 1366 SSL_CTX_set_verify(ctx, verify, verify_callback); 1367 1368 if ((CAfile || CApath) 1369 && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) { 1370 ERR_print_errors(bio_err); 1371 } 1372 if (!SSL_CTX_set_default_verify_paths(ctx)) { 1373 ERR_print_errors(bio_err); 1374 } 1375 1376 ssl_ctx_add_crls(ctx, crls, crl_download); 1377 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain)) 1378 goto end; 1379 1380#ifndef OPENSSL_NO_TLSEXT 1381 if (servername != NULL) { 1382 tlsextcbp.biodebug = bio_err; 1383 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1384 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1385 } 1386# ifndef OPENSSL_NO_SRP 1387 if (srp_arg.srplogin) { 1388 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { 1389 BIO_printf(bio_err, "Unable to set SRP username\n"); 1390 goto end; 1391 } 1392 srp_arg.msg = c_msg; 1393 srp_arg.debug = c_debug; 1394 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); 1395 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1396 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1397 if (c_msg || c_debug || srp_arg.amp == 0) 1398 SSL_CTX_set_srp_verify_param_callback(ctx, 1399 ssl_srp_verify_param_cb); 1400 } 1401# endif 1402#endif 1403 1404 con = SSL_new(ctx); 1405 if (sess_in) { 1406 SSL_SESSION *sess; 1407 BIO *stmp = BIO_new_file(sess_in, "r"); 1408 if (!stmp) { 1409 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1410 ERR_print_errors(bio_err); 1411 goto end; 1412 } 1413 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1414 BIO_free(stmp); 1415 if (!sess) { 1416 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1417 ERR_print_errors(bio_err); 1418 goto end; 1419 } 1420 SSL_set_session(con, sess); 1421 SSL_SESSION_free(sess); 1422 } 1423 1424 if (fallback_scsv) 1425 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 1426 1427#ifndef OPENSSL_NO_TLSEXT 1428 if (servername != NULL) { 1429 if (!SSL_set_tlsext_host_name(con, servername)) { 1430 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 1431 ERR_print_errors(bio_err); 1432 goto end; 1433 } 1434 } 1435#endif 1436#ifndef OPENSSL_NO_KRB5 1437 if (con && (kctx = kssl_ctx_new()) != NULL) { 1438 SSL_set0_kssl_ctx(con, kctx); 1439 kssl_ctx_setstring(kctx, KSSL_SERVER, host); 1440 } 1441#endif /* OPENSSL_NO_KRB5 */ 1442/* SSL_set_cipher_list(con,"RC4-MD5"); */ 1443#if 0 1444# ifdef TLSEXT_TYPE_opaque_prf_input 1445 SSL_set_tlsext_opaque_prf_input(con, "Test client", 11); 1446# endif 1447#endif 1448 1449 re_start: 1450 1451 if (init_client(&s, host, port, socket_type) == 0) { 1452 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); 1453 SHUTDOWN(s); 1454 goto end; 1455 } 1456 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 1457 1458#ifdef FIONBIO 1459 if (c_nbio) { 1460 unsigned long l = 1; 1461 BIO_printf(bio_c_out, "turning on non blocking io\n"); 1462 if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) { 1463 ERR_print_errors(bio_err); 1464 goto end; 1465 } 1466 } 1467#endif 1468 if (c_Pause & 0x01) 1469 SSL_set_debug(con, 1); 1470 1471 if (socket_type == SOCK_DGRAM) { 1472 1473 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1474 if (getsockname(s, &peer, (void *)&peerlen) < 0) { 1475 BIO_printf(bio_err, "getsockname:errno=%d\n", 1476 get_last_socket_error()); 1477 SHUTDOWN(s); 1478 goto end; 1479 } 1480 1481 (void)BIO_ctrl_set_connected(sbio, 1, &peer); 1482 1483 if (enable_timeouts) { 1484 timeout.tv_sec = 0; 1485 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1486 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1487 1488 timeout.tv_sec = 0; 1489 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1490 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1491 } 1492 1493 if (socket_mtu) { 1494 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 1495 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 1496 DTLS_get_link_min_mtu(con)); 1497 BIO_free(sbio); 1498 goto shut; 1499 } 1500 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1501 if (!DTLS_set_link_mtu(con, socket_mtu)) { 1502 BIO_printf(bio_err, "Failed to set MTU\n"); 1503 BIO_free(sbio); 1504 goto shut; 1505 } 1506 } else 1507 /* want to do MTU discovery */ 1508 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1509 } else 1510 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1511 1512 if (nbio_test) { 1513 BIO *test; 1514 1515 test = BIO_new(BIO_f_nbio_test()); 1516 sbio = BIO_push(test, sbio); 1517 } 1518 1519 if (c_debug) { 1520 SSL_set_debug(con, 1); 1521 BIO_set_callback(sbio, bio_dump_callback); 1522 BIO_set_callback_arg(sbio, (char *)bio_c_out); 1523 } 1524 if (c_msg) { 1525#ifndef OPENSSL_NO_SSL_TRACE 1526 if (c_msg == 2) 1527 SSL_set_msg_callback(con, SSL_trace); 1528 else 1529#endif 1530 SSL_set_msg_callback(con, msg_cb); 1531 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out); 1532 } 1533#ifndef OPENSSL_NO_TLSEXT 1534 if (c_tlsextdebug) { 1535 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1536 SSL_set_tlsext_debug_arg(con, bio_c_out); 1537 } 1538 if (c_status_req) { 1539 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 1540 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 1541 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 1542# if 0 1543 { 1544 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null(); 1545 OCSP_RESPID *id = OCSP_RESPID_new(); 1546 id->value.byKey = ASN1_OCTET_STRING_new(); 1547 id->type = V_OCSP_RESPID_KEY; 1548 ASN1_STRING_set(id->value.byKey, "Hello World", -1); 1549 sk_OCSP_RESPID_push(ids, id); 1550 SSL_set_tlsext_status_ids(con, ids); 1551 } 1552# endif 1553 } 1554#endif 1555#ifndef OPENSSL_NO_JPAKE 1556 if (jpake_secret) 1557 jpake_client_auth(bio_c_out, sbio, jpake_secret); 1558#endif 1559 1560 SSL_set_bio(con, sbio, sbio); 1561 SSL_set_connect_state(con); 1562 1563 /* ok, lets connect */ 1564 if (fileno_stdin() > SSL_get_fd(con)) 1565 width = fileno_stdin() + 1; 1566 else 1567 width = SSL_get_fd(con) + 1; 1568 1569 read_tty = 1; 1570 write_tty = 0; 1571 tty_on = 0; 1572 read_ssl = 1; 1573 write_ssl = 1; 1574 1575 cbuf_len = 0; 1576 cbuf_off = 0; 1577 sbuf_len = 0; 1578 sbuf_off = 0; 1579 1580 /* This is an ugly hack that does a lot of assumptions */ 1581 /* 1582 * We do have to handle multi-line responses which may come in a single 1583 * packet or not. We therefore have to use BIO_gets() which does need a 1584 * buffering BIO. So during the initial chitchat we do push a buffering 1585 * BIO into the chain that is removed again later on to not disturb the 1586 * rest of the s_client operation. 1587 */ 1588 if (starttls_proto == PROTO_SMTP) { 1589 int foundit = 0; 1590 BIO *fbio = BIO_new(BIO_f_buffer()); 1591 BIO_push(fbio, sbio); 1592 /* wait for multi-line response to end from SMTP */ 1593 do { 1594 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1595 } 1596 while (mbuf_len > 3 && mbuf[3] == '-'); 1597 /* STARTTLS command requires EHLO... */ 1598 BIO_printf(fbio, "EHLO openssl.client.net\r\n"); 1599 (void)BIO_flush(fbio); 1600 /* wait for multi-line response to end EHLO SMTP response */ 1601 do { 1602 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1603 if (strstr(mbuf, "STARTTLS")) 1604 foundit = 1; 1605 } 1606 while (mbuf_len > 3 && mbuf[3] == '-'); 1607 (void)BIO_flush(fbio); 1608 BIO_pop(fbio); 1609 BIO_free(fbio); 1610 if (!foundit) 1611 BIO_printf(bio_err, 1612 "didn't found starttls in server response," 1613 " try anyway...\n"); 1614 BIO_printf(sbio, "STARTTLS\r\n"); 1615 BIO_read(sbio, sbuf, BUFSIZZ); 1616 } else if (starttls_proto == PROTO_POP3) { 1617 BIO_read(sbio, mbuf, BUFSIZZ); 1618 BIO_printf(sbio, "STLS\r\n"); 1619 BIO_read(sbio, sbuf, BUFSIZZ); 1620 } else if (starttls_proto == PROTO_IMAP) { 1621 int foundit = 0; 1622 BIO *fbio = BIO_new(BIO_f_buffer()); 1623 BIO_push(fbio, sbio); 1624 BIO_gets(fbio, mbuf, BUFSIZZ); 1625 /* STARTTLS command requires CAPABILITY... */ 1626 BIO_printf(fbio, ". CAPABILITY\r\n"); 1627 (void)BIO_flush(fbio); 1628 /* wait for multi-line CAPABILITY response */ 1629 do { 1630 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1631 if (strstr(mbuf, "STARTTLS")) 1632 foundit = 1; 1633 } 1634 while (mbuf_len > 3 && mbuf[0] != '.'); 1635 (void)BIO_flush(fbio); 1636 BIO_pop(fbio); 1637 BIO_free(fbio); 1638 if (!foundit) 1639 BIO_printf(bio_err, 1640 "didn't found STARTTLS in server response," 1641 " try anyway...\n"); 1642 BIO_printf(sbio, ". STARTTLS\r\n"); 1643 BIO_read(sbio, sbuf, BUFSIZZ); 1644 } else if (starttls_proto == PROTO_FTP) { 1645 BIO *fbio = BIO_new(BIO_f_buffer()); 1646 BIO_push(fbio, sbio); 1647 /* wait for multi-line response to end from FTP */ 1648 do { 1649 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1650 } 1651 while (mbuf_len > 3 && mbuf[3] == '-'); 1652 (void)BIO_flush(fbio); 1653 BIO_pop(fbio); 1654 BIO_free(fbio); 1655 BIO_printf(sbio, "AUTH TLS\r\n"); 1656 BIO_read(sbio, sbuf, BUFSIZZ); 1657 } 1658 if (starttls_proto == PROTO_XMPP) { 1659 int seen = 0; 1660 BIO_printf(sbio, "<stream:stream " 1661 "xmlns:stream='http://etherx.jabber.org/streams' " 1662 "xmlns='jabber:client' to='%s' version='1.0'>", host); 1663 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1664 mbuf[seen] = 0; 1665 while (!strstr 1666 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) { 1667 if (strstr(mbuf, "/stream:features>")) 1668 goto shut; 1669 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1670 if (seen <= 0) 1671 goto shut; 1672 mbuf[seen] = 0; 1673 } 1674 BIO_printf(sbio, 1675 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 1676 seen = BIO_read(sbio, sbuf, BUFSIZZ); 1677 sbuf[seen] = 0; 1678 if (!strstr(sbuf, "<proceed")) 1679 goto shut; 1680 mbuf[0] = 0; 1681 } 1682 1683 for (;;) { 1684 FD_ZERO(&readfds); 1685 FD_ZERO(&writefds); 1686 1687 if ((SSL_version(con) == DTLS1_VERSION) && 1688 DTLSv1_get_timeout(con, &timeout)) 1689 timeoutp = &timeout; 1690 else 1691 timeoutp = NULL; 1692 1693 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { 1694 in_init = 1; 1695 tty_on = 0; 1696 } else { 1697 tty_on = 1; 1698 if (in_init) { 1699 in_init = 0; 1700#if 0 /* This test doesn't really work as intended 1701 * (needs to be fixed) */ 1702# ifndef OPENSSL_NO_TLSEXT 1703 if (servername != NULL && !SSL_session_reused(con)) { 1704 BIO_printf(bio_c_out, 1705 "Server did %sacknowledge servername extension.\n", 1706 tlsextcbp.ack ? "" : "not "); 1707 } 1708# endif 1709#endif 1710 if (sess_out) { 1711 BIO *stmp = BIO_new_file(sess_out, "w"); 1712 if (stmp) { 1713 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 1714 BIO_free(stmp); 1715 } else 1716 BIO_printf(bio_err, "Error writing session file %s\n", 1717 sess_out); 1718 } 1719 if (c_brief) { 1720 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n"); 1721 print_ssl_summary(bio_err, con); 1722 } 1723 1724 print_stuff(bio_c_out, con, full_log); 1725 if (full_log > 0) 1726 full_log--; 1727 1728 if (starttls_proto) { 1729 BIO_printf(bio_err, "%s", mbuf); 1730 /* We don't need to know any more */ 1731 starttls_proto = PROTO_OFF; 1732 } 1733 1734 if (reconnect) { 1735 reconnect--; 1736 BIO_printf(bio_c_out, 1737 "drop connection and then reconnect\n"); 1738 SSL_shutdown(con); 1739 SSL_set_connect_state(con); 1740 SHUTDOWN(SSL_get_fd(con)); 1741 goto re_start; 1742 } 1743 } 1744 } 1745 1746 ssl_pending = read_ssl && SSL_pending(con); 1747 1748 if (!ssl_pending) { 1749#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5) 1750 if (tty_on) { 1751 if (read_tty) 1752 openssl_fdset(fileno_stdin(), &readfds); 1753#if !defined(OPENSSL_SYS_VMS) 1754 if (write_tty) 1755 openssl_fdset(fileno_stdout(), &writefds); 1756#endif 1757 } 1758 if (read_ssl) 1759 openssl_fdset(SSL_get_fd(con), &readfds); 1760 if (write_ssl) 1761 openssl_fdset(SSL_get_fd(con), &writefds); 1762#else 1763 if (!tty_on || !write_tty) { 1764 if (read_ssl) 1765 openssl_fdset(SSL_get_fd(con), &readfds); 1766 if (write_ssl) 1767 openssl_fdset(SSL_get_fd(con), &writefds); 1768 } 1769#endif 1770/*- printf("mode tty(%d %d%d) ssl(%d%d)\n", 1771 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1772 1773 /* 1774 * Note: under VMS with SOCKETSHR the second parameter is 1775 * currently of type (int *) whereas under other systems it is 1776 * (void *) if you don't have a cast it will choke the compiler: 1777 * if you do have a cast then you can either go for (int *) or 1778 * (void *). 1779 */ 1780#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1781 /* 1782 * Under Windows/DOS we make the assumption that we can always 1783 * write to the tty: therefore if we need to write to the tty we 1784 * just fall through. Otherwise we timeout the select every 1785 * second and see if there are any keypresses. Note: this is a 1786 * hack, in a proper Windows application we wouldn't do this. 1787 */ 1788 i = 0; 1789 if (!write_tty) { 1790 if (read_tty) { 1791 tv.tv_sec = 1; 1792 tv.tv_usec = 0; 1793 i = select(width, (void *)&readfds, (void *)&writefds, 1794 NULL, &tv); 1795# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1796 if (!i && (!_kbhit() || !read_tty)) 1797 continue; 1798# else 1799 if (!i && (!((_kbhit()) 1800 || (WAIT_OBJECT_0 == 1801 WaitForSingleObject(GetStdHandle 1802 (STD_INPUT_HANDLE), 1803 0))) 1804 || !read_tty)) 1805 continue; 1806# endif 1807 } else 1808 i = select(width, (void *)&readfds, (void *)&writefds, 1809 NULL, timeoutp); 1810 } 1811#elif defined(OPENSSL_SYS_NETWARE) 1812 if (!write_tty) { 1813 if (read_tty) { 1814 tv.tv_sec = 1; 1815 tv.tv_usec = 0; 1816 i = select(width, (void *)&readfds, (void *)&writefds, 1817 NULL, &tv); 1818 } else 1819 i = select(width, (void *)&readfds, (void *)&writefds, 1820 NULL, timeoutp); 1821 } 1822#elif defined(OPENSSL_SYS_BEOS_R5) 1823 /* Under BeOS-R5 the situation is similar to DOS */ 1824 i = 0; 1825 stdin_set = 0; 1826 (void)fcntl(fileno_stdin(), F_SETFL, O_NONBLOCK); 1827 if (!write_tty) { 1828 if (read_tty) { 1829 tv.tv_sec = 1; 1830 tv.tv_usec = 0; 1831 i = select(width, (void *)&readfds, (void *)&writefds, 1832 NULL, &tv); 1833 if (read(fileno_stdin(), sbuf, 0) >= 0) 1834 stdin_set = 1; 1835 if (!i && (stdin_set != 1 || !read_tty)) 1836 continue; 1837 } else 1838 i = select(width, (void *)&readfds, (void *)&writefds, 1839 NULL, timeoutp); 1840 } 1841 (void)fcntl(fileno_stdin(), F_SETFL, 0); 1842#else 1843 i = select(width, (void *)&readfds, (void *)&writefds, 1844 NULL, timeoutp); 1845#endif 1846 if (i < 0) { 1847 BIO_printf(bio_err, "bad select %d\n", 1848 get_last_socket_error()); 1849 goto shut; 1850 /* goto end; */ 1851 } 1852 } 1853 1854 if ((SSL_version(con) == DTLS1_VERSION) 1855 && DTLSv1_handle_timeout(con) > 0) { 1856 BIO_printf(bio_err, "TIMEOUT occured\n"); 1857 } 1858 1859 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { 1860 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); 1861 switch (SSL_get_error(con, k)) { 1862 case SSL_ERROR_NONE: 1863 cbuf_off += k; 1864 cbuf_len -= k; 1865 if (k <= 0) 1866 goto end; 1867 /* we have done a write(con,NULL,0); */ 1868 if (cbuf_len <= 0) { 1869 read_tty = 1; 1870 write_ssl = 0; 1871 } else { /* if (cbuf_len > 0) */ 1872 1873 read_tty = 0; 1874 write_ssl = 1; 1875 } 1876 break; 1877 case SSL_ERROR_WANT_WRITE: 1878 BIO_printf(bio_c_out, "write W BLOCK\n"); 1879 write_ssl = 1; 1880 read_tty = 0; 1881 break; 1882 case SSL_ERROR_WANT_READ: 1883 BIO_printf(bio_c_out, "write R BLOCK\n"); 1884 write_tty = 0; 1885 read_ssl = 1; 1886 write_ssl = 0; 1887 break; 1888 case SSL_ERROR_WANT_X509_LOOKUP: 1889 BIO_printf(bio_c_out, "write X BLOCK\n"); 1890 break; 1891 case SSL_ERROR_ZERO_RETURN: 1892 if (cbuf_len != 0) { 1893 BIO_printf(bio_c_out, "shutdown\n"); 1894 ret = 0; 1895 goto shut; 1896 } else { 1897 read_tty = 1; 1898 write_ssl = 0; 1899 break; 1900 } 1901 1902 case SSL_ERROR_SYSCALL: 1903 if ((k != 0) || (cbuf_len != 0)) { 1904 BIO_printf(bio_err, "write:errno=%d\n", 1905 get_last_socket_error()); 1906 goto shut; 1907 } else { 1908 read_tty = 1; 1909 write_ssl = 0; 1910 } 1911 break; 1912 case SSL_ERROR_SSL: 1913 ERR_print_errors(bio_err); 1914 goto shut; 1915 } 1916 } 1917#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) || defined(OPENSSL_SYS_VMS) 1918 /* Assume Windows/DOS/BeOS can always write */ 1919 else if (!ssl_pending && write_tty) 1920#else 1921 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds)) 1922#endif 1923 { 1924#ifdef CHARSET_EBCDIC 1925 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); 1926#endif 1927 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); 1928 1929 if (i <= 0) { 1930 BIO_printf(bio_c_out, "DONE\n"); 1931 ret = 0; 1932 goto shut; 1933 /* goto end; */ 1934 } 1935 1936 sbuf_len -= i;; 1937 sbuf_off += i; 1938 if (sbuf_len <= 0) { 1939 read_ssl = 1; 1940 write_tty = 0; 1941 } 1942 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { 1943#ifdef RENEG 1944 { 1945 static int iiii; 1946 if (++iiii == 52) { 1947 SSL_renegotiate(con); 1948 iiii = 0; 1949 } 1950 } 1951#endif 1952#if 1 1953 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 1954#else 1955/* Demo for pending and peek :-) */ 1956 k = SSL_read(con, sbuf, 16); 1957 { 1958 char zbuf[10240]; 1959 printf("read=%d pending=%d peek=%d\n", k, SSL_pending(con), 1960 SSL_peek(con, zbuf, 10240)); 1961 } 1962#endif 1963 1964 switch (SSL_get_error(con, k)) { 1965 case SSL_ERROR_NONE: 1966 if (k <= 0) 1967 goto end; 1968 sbuf_off = 0; 1969 sbuf_len = k; 1970 1971 read_ssl = 0; 1972 write_tty = 1; 1973 break; 1974 case SSL_ERROR_WANT_WRITE: 1975 BIO_printf(bio_c_out, "read W BLOCK\n"); 1976 write_ssl = 1; 1977 read_tty = 0; 1978 break; 1979 case SSL_ERROR_WANT_READ: 1980 BIO_printf(bio_c_out, "read R BLOCK\n"); 1981 write_tty = 0; 1982 read_ssl = 1; 1983 if ((read_tty == 0) && (write_ssl == 0)) 1984 write_ssl = 1; 1985 break; 1986 case SSL_ERROR_WANT_X509_LOOKUP: 1987 BIO_printf(bio_c_out, "read X BLOCK\n"); 1988 break; 1989 case SSL_ERROR_SYSCALL: 1990 ret = get_last_socket_error(); 1991 if (c_brief) 1992 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n"); 1993 else 1994 BIO_printf(bio_err, "read:errno=%d\n", ret); 1995 goto shut; 1996 case SSL_ERROR_ZERO_RETURN: 1997 BIO_printf(bio_c_out, "closed\n"); 1998 ret = 0; 1999 goto shut; 2000 case SSL_ERROR_SSL: 2001 ERR_print_errors(bio_err); 2002 goto shut; 2003 /* break; */ 2004 } 2005 } 2006#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2007# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 2008 else if (_kbhit()) 2009# else 2010 else if ((_kbhit()) 2011 || (WAIT_OBJECT_0 == 2012 WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) 2013# endif 2014#elif defined (OPENSSL_SYS_NETWARE) 2015 else if (_kbhit()) 2016#elif defined(OPENSSL_SYS_BEOS_R5) 2017 else if (stdin_set) 2018#else 2019 else if (FD_ISSET(fileno_stdin(), &readfds)) 2020#endif 2021 { 2022 if (crlf) { 2023 int j, lf_num; 2024 2025 i = raw_read_stdin(cbuf, BUFSIZZ / 2); 2026 lf_num = 0; 2027 /* both loops are skipped when i <= 0 */ 2028 for (j = 0; j < i; j++) 2029 if (cbuf[j] == '\n') 2030 lf_num++; 2031 for (j = i - 1; j >= 0; j--) { 2032 cbuf[j + lf_num] = cbuf[j]; 2033 if (cbuf[j] == '\n') { 2034 lf_num--; 2035 i++; 2036 cbuf[j + lf_num] = '\r'; 2037 } 2038 } 2039 assert(lf_num == 0); 2040 } else 2041 i = raw_read_stdin(cbuf, BUFSIZZ); 2042 2043 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) { 2044 BIO_printf(bio_err, "DONE\n"); 2045 ret = 0; 2046 goto shut; 2047 } 2048 2049 if ((!c_ign_eof) && (cbuf[0] == 'R')) { 2050 BIO_printf(bio_err, "RENEGOTIATING\n"); 2051 SSL_renegotiate(con); 2052 cbuf_len = 0; 2053 } 2054#ifndef OPENSSL_NO_HEARTBEATS 2055 else if ((!c_ign_eof) && (cbuf[0] == 'B')) { 2056 BIO_printf(bio_err, "HEARTBEATING\n"); 2057 SSL_heartbeat(con); 2058 cbuf_len = 0; 2059 } 2060#endif 2061 else { 2062 cbuf_len = i; 2063 cbuf_off = 0; 2064#ifdef CHARSET_EBCDIC 2065 ebcdic2ascii(cbuf, cbuf, i); 2066#endif 2067 } 2068 2069 write_ssl = 1; 2070 read_tty = 0; 2071 } 2072 } 2073 2074 ret = 0; 2075 shut: 2076 if (in_init) 2077 print_stuff(bio_c_out, con, full_log); 2078 SSL_shutdown(con); 2079 SHUTDOWN(SSL_get_fd(con)); 2080 end: 2081 if (con != NULL) { 2082 if (prexit != 0) 2083 print_stuff(bio_c_out, con, 1); 2084 SSL_free(con); 2085 } 2086#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 2087 if (next_proto.data) 2088 OPENSSL_free(next_proto.data); 2089#endif 2090 if (ctx != NULL) 2091 SSL_CTX_free(ctx); 2092 if (cert) 2093 X509_free(cert); 2094 if (crls) 2095 sk_X509_CRL_pop_free(crls, X509_CRL_free); 2096 if (key) 2097 EVP_PKEY_free(key); 2098 if (chain) 2099 sk_X509_pop_free(chain, X509_free); 2100 if (pass) 2101 OPENSSL_free(pass); 2102#ifndef OPENSSL_NO_SRP 2103 OPENSSL_free(srp_arg.srppassin); 2104#endif 2105 if (vpm) 2106 X509_VERIFY_PARAM_free(vpm); 2107 ssl_excert_free(exc); 2108 if (ssl_args) 2109 sk_OPENSSL_STRING_free(ssl_args); 2110 if (cctx) 2111 SSL_CONF_CTX_free(cctx); 2112#ifndef OPENSSL_NO_JPAKE 2113 if (jpake_secret && psk_key) 2114 OPENSSL_free(psk_key); 2115#endif 2116 if (cbuf != NULL) { 2117 OPENSSL_cleanse(cbuf, BUFSIZZ); 2118 OPENSSL_free(cbuf); 2119 } 2120 if (sbuf != NULL) { 2121 OPENSSL_cleanse(sbuf, BUFSIZZ); 2122 OPENSSL_free(sbuf); 2123 } 2124 if (mbuf != NULL) { 2125 OPENSSL_cleanse(mbuf, BUFSIZZ); 2126 OPENSSL_free(mbuf); 2127 } 2128 release_engine(e); 2129 if (bio_c_out != NULL) { 2130 BIO_free(bio_c_out); 2131 bio_c_out = NULL; 2132 } 2133 if (bio_c_msg != NULL) { 2134 BIO_free(bio_c_msg); 2135 bio_c_msg = NULL; 2136 } 2137 SSL_COMP_free_compression_methods(); 2138 apps_shutdown(); 2139 OPENSSL_EXIT(ret); 2140} 2141 2142static void print_stuff(BIO *bio, SSL *s, int full) 2143{ 2144 X509 *peer = NULL; 2145 char *p; 2146 static const char *space = " "; 2147 char buf[BUFSIZ]; 2148 STACK_OF(X509) *sk; 2149 STACK_OF(X509_NAME) *sk2; 2150 const SSL_CIPHER *c; 2151 X509_NAME *xn; 2152 int j, i; 2153#ifndef OPENSSL_NO_COMP 2154 const COMP_METHOD *comp, *expansion; 2155#endif 2156 unsigned char *exportedkeymat; 2157 2158 if (full) { 2159 int got_a_chain = 0; 2160 2161 sk = SSL_get_peer_cert_chain(s); 2162 if (sk != NULL) { 2163 got_a_chain = 1; /* we don't have it for SSL2 (yet) */ 2164 2165 BIO_printf(bio, "---\nCertificate chain\n"); 2166 for (i = 0; i < sk_X509_num(sk); i++) { 2167 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)), 2168 buf, sizeof buf); 2169 BIO_printf(bio, "%2d s:%s\n", i, buf); 2170 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)), 2171 buf, sizeof buf); 2172 BIO_printf(bio, " i:%s\n", buf); 2173 if (c_showcerts) 2174 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 2175 } 2176 } 2177 2178 BIO_printf(bio, "---\n"); 2179 peer = SSL_get_peer_certificate(s); 2180 if (peer != NULL) { 2181 BIO_printf(bio, "Server certificate\n"); 2182 2183 /* Redundant if we showed the whole chain */ 2184 if (!(c_showcerts && got_a_chain)) 2185 PEM_write_bio_X509(bio, peer); 2186 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 2187 BIO_printf(bio, "subject=%s\n", buf); 2188 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 2189 BIO_printf(bio, "issuer=%s\n", buf); 2190 } else 2191 BIO_printf(bio, "no peer certificate available\n"); 2192 2193 sk2 = SSL_get_client_CA_list(s); 2194 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { 2195 BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); 2196 for (i = 0; i < sk_X509_NAME_num(sk2); i++) { 2197 xn = sk_X509_NAME_value(sk2, i); 2198 X509_NAME_oneline(xn, buf, sizeof(buf)); 2199 BIO_write(bio, buf, strlen(buf)); 2200 BIO_write(bio, "\n", 1); 2201 } 2202 } else { 2203 BIO_printf(bio, "---\nNo client certificate CA names sent\n"); 2204 } 2205 p = SSL_get_shared_ciphers(s, buf, sizeof buf); 2206 if (p != NULL) { 2207 /* 2208 * This works only for SSL 2. In later protocol versions, the 2209 * client does not know what other ciphers (in addition to the 2210 * one to be used in the current connection) the server supports. 2211 */ 2212 2213 BIO_printf(bio, 2214 "---\nCiphers common between both SSL endpoints:\n"); 2215 j = i = 0; 2216 while (*p) { 2217 if (*p == ':') { 2218 BIO_write(bio, space, 15 - j % 25); 2219 i++; 2220 j = 0; 2221 BIO_write(bio, ((i % 3) ? " " : "\n"), 1); 2222 } else { 2223 BIO_write(bio, p, 1); 2224 j++; 2225 } 2226 p++; 2227 } 2228 BIO_write(bio, "\n", 1); 2229 } 2230 2231 ssl_print_sigalgs(bio, s); 2232 ssl_print_tmp_key(bio, s); 2233 2234 BIO_printf(bio, 2235 "---\nSSL handshake has read %ld bytes and written %ld bytes\n", 2236 BIO_number_read(SSL_get_rbio(s)), 2237 BIO_number_written(SSL_get_wbio(s))); 2238 } 2239 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, ")); 2240 c = SSL_get_current_cipher(s); 2241 BIO_printf(bio, "%s, Cipher is %s\n", 2242 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 2243 if (peer != NULL) { 2244 EVP_PKEY *pktmp; 2245 pktmp = X509_get_pubkey(peer); 2246 BIO_printf(bio, "Server public key is %d bit\n", 2247 EVP_PKEY_bits(pktmp)); 2248 EVP_PKEY_free(pktmp); 2249 } 2250 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 2251 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 2252#ifndef OPENSSL_NO_COMP 2253 comp = SSL_get_current_compression(s); 2254 expansion = SSL_get_current_expansion(s); 2255 BIO_printf(bio, "Compression: %s\n", 2256 comp ? SSL_COMP_get_name(comp) : "NONE"); 2257 BIO_printf(bio, "Expansion: %s\n", 2258 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 2259#endif 2260 2261#ifdef SSL_DEBUG 2262 { 2263 /* Print out local port of connection: useful for debugging */ 2264 int sock; 2265 struct sockaddr_in ladd; 2266 socklen_t ladd_size = sizeof(ladd); 2267 sock = SSL_get_fd(s); 2268 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size); 2269 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); 2270 } 2271#endif 2272 2273#if !defined(OPENSSL_NO_TLSEXT) 2274# if !defined(OPENSSL_NO_NEXTPROTONEG) 2275 if (next_proto.status != -1) { 2276 const unsigned char *proto; 2277 unsigned int proto_len; 2278 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 2279 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 2280 BIO_write(bio, proto, proto_len); 2281 BIO_write(bio, "\n", 1); 2282 } 2283# endif 2284 { 2285 const unsigned char *proto; 2286 unsigned int proto_len; 2287 SSL_get0_alpn_selected(s, &proto, &proto_len); 2288 if (proto_len > 0) { 2289 BIO_printf(bio, "ALPN protocol: "); 2290 BIO_write(bio, proto, proto_len); 2291 BIO_write(bio, "\n", 1); 2292 } else 2293 BIO_printf(bio, "No ALPN negotiated\n"); 2294 } 2295#endif 2296 2297#ifndef OPENSSL_NO_SRTP 2298 { 2299 SRTP_PROTECTION_PROFILE *srtp_profile = 2300 SSL_get_selected_srtp_profile(s); 2301 2302 if (srtp_profile) 2303 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 2304 srtp_profile->name); 2305 } 2306#endif 2307 2308 SSL_SESSION_print(bio, SSL_get_session(s)); 2309 if (keymatexportlabel != NULL) { 2310 BIO_printf(bio, "Keying material exporter:\n"); 2311 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 2312 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 2313 exportedkeymat = OPENSSL_malloc(keymatexportlen); 2314 if (exportedkeymat != NULL) { 2315 if (!SSL_export_keying_material(s, exportedkeymat, 2316 keymatexportlen, 2317 keymatexportlabel, 2318 strlen(keymatexportlabel), 2319 NULL, 0, 0)) { 2320 BIO_printf(bio, " Error\n"); 2321 } else { 2322 BIO_printf(bio, " Keying material: "); 2323 for (i = 0; i < keymatexportlen; i++) 2324 BIO_printf(bio, "%02X", exportedkeymat[i]); 2325 BIO_printf(bio, "\n"); 2326 } 2327 OPENSSL_free(exportedkeymat); 2328 } 2329 } 2330 BIO_printf(bio, "---\n"); 2331 if (peer != NULL) 2332 X509_free(peer); 2333 /* flush, or debugging output gets mixed with http response */ 2334 (void)BIO_flush(bio); 2335} 2336 2337#ifndef OPENSSL_NO_TLSEXT 2338 2339static int ocsp_resp_cb(SSL *s, void *arg) 2340{ 2341 const unsigned char *p; 2342 int len; 2343 OCSP_RESPONSE *rsp; 2344 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 2345 BIO_puts(arg, "OCSP response: "); 2346 if (!p) { 2347 BIO_puts(arg, "no response sent\n"); 2348 return 1; 2349 } 2350 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 2351 if (!rsp) { 2352 BIO_puts(arg, "response parse error\n"); 2353 BIO_dump_indent(arg, (char *)p, len, 4); 2354 return 0; 2355 } 2356 BIO_puts(arg, "\n======================================\n"); 2357 OCSP_RESPONSE_print(arg, rsp, 0); 2358 BIO_puts(arg, "======================================\n"); 2359 OCSP_RESPONSE_free(rsp); 2360 return 1; 2361} 2362 2363#endif 2364