s_client.c revision 337982
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) 1998-2018 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 sent by the server\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 inlen &= 0xffff; /* for formal memcpy correctness */ 634 ext_buf[0] = (unsigned char)(ext_type >> 8); 635 ext_buf[1] = (unsigned char)(ext_type); 636 ext_buf[2] = (unsigned char)(inlen >> 8); 637 ext_buf[3] = (unsigned char)(inlen); 638 memcpy(ext_buf + 4, in, inlen); 639 640 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d", 641 ext_type); 642 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen); 643 return 1; 644} 645 646#endif 647 648enum { 649 PROTO_OFF = 0, 650 PROTO_SMTP, 651 PROTO_POP3, 652 PROTO_IMAP, 653 PROTO_FTP, 654 PROTO_XMPP 655}; 656 657int MAIN(int, char **); 658 659int MAIN(int argc, char **argv) 660{ 661 int build_chain = 0; 662 SSL *con = NULL; 663#ifndef OPENSSL_NO_KRB5 664 KSSL_CTX *kctx; 665#endif 666 int s, k, width, state = 0; 667 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL; 668 int cbuf_len, cbuf_off; 669 int sbuf_len, sbuf_off; 670 fd_set readfds, writefds; 671 short port = PORT; 672 int full_log = 1; 673 char *host = SSL_HOST_NAME; 674 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL; 675 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 676 char *passarg = NULL, *pass = NULL; 677 X509 *cert = NULL; 678 EVP_PKEY *key = NULL; 679 STACK_OF(X509) *chain = NULL; 680 char *CApath = NULL, *CAfile = NULL; 681 char *chCApath = NULL, *chCAfile = NULL; 682 char *vfyCApath = NULL, *vfyCAfile = NULL; 683 int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE; 684 int crlf = 0; 685 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; 686 SSL_CTX *ctx = NULL; 687 int ret = 1, in_init = 1, i, nbio_test = 0; 688 int starttls_proto = PROTO_OFF; 689 int prexit = 0; 690 X509_VERIFY_PARAM *vpm = NULL; 691 int badarg = 0; 692 const SSL_METHOD *meth = NULL; 693 int socket_type = SOCK_STREAM; 694 BIO *sbio; 695 char *inrand = NULL; 696 int mbuf_len = 0; 697 struct timeval timeout, *timeoutp; 698 char *engine_id = NULL; 699 ENGINE *e = NULL; 700#ifndef OPENSSL_NO_ENGINE 701 char *ssl_client_engine_id = NULL; 702 ENGINE *ssl_client_engine = NULL; 703#endif 704#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 705 struct timeval tv; 706# if defined(OPENSSL_SYS_BEOS_R5) 707 int stdin_set = 0; 708# endif 709#endif 710#ifndef OPENSSL_NO_TLSEXT 711 char *servername = NULL; 712 tlsextctx tlsextcbp = { NULL, 0 }; 713# ifndef OPENSSL_NO_NEXTPROTONEG 714 const char *next_proto_neg_in = NULL; 715# endif 716 const char *alpn_in = NULL; 717# define MAX_SI_TYPES 100 718 unsigned short serverinfo_types[MAX_SI_TYPES]; 719 int serverinfo_types_count = 0; 720#endif 721 char *sess_in = NULL; 722 char *sess_out = NULL; 723 struct sockaddr peer; 724 int peerlen = sizeof(peer); 725 int fallback_scsv = 0; 726 int enable_timeouts = 0; 727 long socket_mtu = 0; 728#ifndef OPENSSL_NO_JPAKE 729 static char *jpake_secret = NULL; 730# define no_jpake !jpake_secret 731#else 732# define no_jpake 1 733#endif 734#ifndef OPENSSL_NO_SRP 735 char *srppass = NULL; 736 int srp_lateuser = 0; 737 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; 738#endif 739 SSL_EXCERT *exc = NULL; 740 741 SSL_CONF_CTX *cctx = NULL; 742 STACK_OF(OPENSSL_STRING) *ssl_args = NULL; 743 744 char *crl_file = NULL; 745 int crl_format = FORMAT_PEM; 746 int crl_download = 0; 747 STACK_OF(X509_CRL) *crls = NULL; 748 int prot_opt = 0, no_prot_opt = 0; 749 750 meth = SSLv23_client_method(); 751 752 apps_startup(); 753 c_Pause = 0; 754 c_quiet = 0; 755 c_ign_eof = 0; 756 c_debug = 0; 757 c_msg = 0; 758 c_showcerts = 0; 759 760 if (bio_err == NULL) 761 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 762 763 if (!load_config(bio_err, NULL)) 764 goto end; 765 766 cctx = SSL_CONF_CTX_new(); 767 if (!cctx) 768 goto end; 769 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT); 770 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE); 771 772 if (((cbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 773 ((sbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 774 ((mbuf = OPENSSL_malloc(BUFSIZZ)) == NULL)) { 775 BIO_printf(bio_err, "out of memory\n"); 776 goto end; 777 } 778 779 verify_depth = 0; 780 verify_error = X509_V_OK; 781#ifdef FIONBIO 782 c_nbio = 0; 783#endif 784 785 argc--; 786 argv++; 787 while (argc >= 1) { 788 if (strcmp(*argv, "-host") == 0) { 789 if (--argc < 1) 790 goto bad; 791 host = *(++argv); 792 } else if (strcmp(*argv, "-port") == 0) { 793 if (--argc < 1) 794 goto bad; 795 port = atoi(*(++argv)); 796 if (port == 0) 797 goto bad; 798 } else if (strcmp(*argv, "-connect") == 0) { 799 if (--argc < 1) 800 goto bad; 801 if (!extract_host_port(*(++argv), &host, NULL, &port)) 802 goto bad; 803 } else if (strcmp(*argv, "-verify") == 0) { 804 verify = SSL_VERIFY_PEER; 805 if (--argc < 1) 806 goto bad; 807 verify_depth = atoi(*(++argv)); 808 if (!c_quiet) 809 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 810 } else if (strcmp(*argv, "-cert") == 0) { 811 if (--argc < 1) 812 goto bad; 813 cert_file = *(++argv); 814 } else if (strcmp(*argv, "-CRL") == 0) { 815 if (--argc < 1) 816 goto bad; 817 crl_file = *(++argv); 818 } else if (strcmp(*argv, "-crl_download") == 0) 819 crl_download = 1; 820 else if (strcmp(*argv, "-sess_out") == 0) { 821 if (--argc < 1) 822 goto bad; 823 sess_out = *(++argv); 824 } else if (strcmp(*argv, "-sess_in") == 0) { 825 if (--argc < 1) 826 goto bad; 827 sess_in = *(++argv); 828 } else if (strcmp(*argv, "-certform") == 0) { 829 if (--argc < 1) 830 goto bad; 831 cert_format = str2fmt(*(++argv)); 832 } else if (strcmp(*argv, "-CRLform") == 0) { 833 if (--argc < 1) 834 goto bad; 835 crl_format = str2fmt(*(++argv)); 836 } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 837 if (badarg) 838 goto bad; 839 continue; 840 } else if (strcmp(*argv, "-verify_return_error") == 0) 841 verify_return_error = 1; 842 else if (strcmp(*argv, "-verify_quiet") == 0) 843 verify_quiet = 1; 844 else if (strcmp(*argv, "-brief") == 0) { 845 c_brief = 1; 846 verify_quiet = 1; 847 c_quiet = 1; 848 } else if (args_excert(&argv, &argc, &badarg, bio_err, &exc)) { 849 if (badarg) 850 goto bad; 851 continue; 852 } else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args, 853 &no_prot_opt)) { 854 if (badarg) 855 goto bad; 856 continue; 857 } else if (strcmp(*argv, "-prexit") == 0) 858 prexit = 1; 859 else if (strcmp(*argv, "-crlf") == 0) 860 crlf = 1; 861 else if (strcmp(*argv, "-quiet") == 0) { 862 c_quiet = 1; 863 c_ign_eof = 1; 864 } else if (strcmp(*argv, "-ign_eof") == 0) 865 c_ign_eof = 1; 866 else if (strcmp(*argv, "-no_ign_eof") == 0) 867 c_ign_eof = 0; 868 else if (strcmp(*argv, "-pause") == 0) 869 c_Pause = 1; 870 else if (strcmp(*argv, "-debug") == 0) 871 c_debug = 1; 872#ifndef OPENSSL_NO_TLSEXT 873 else if (strcmp(*argv, "-tlsextdebug") == 0) 874 c_tlsextdebug = 1; 875 else if (strcmp(*argv, "-status") == 0) 876 c_status_req = 1; 877#endif 878#ifdef WATT32 879 else if (strcmp(*argv, "-wdebug") == 0) 880 dbug_init(); 881#endif 882 else if (strcmp(*argv, "-msg") == 0) 883 c_msg = 1; 884 else if (strcmp(*argv, "-msgfile") == 0) { 885 if (--argc < 1) 886 goto bad; 887 bio_c_msg = BIO_new_file(*(++argv), "w"); 888 } 889#ifndef OPENSSL_NO_SSL_TRACE 890 else if (strcmp(*argv, "-trace") == 0) 891 c_msg = 2; 892#endif 893 else if (strcmp(*argv, "-showcerts") == 0) 894 c_showcerts = 1; 895 else if (strcmp(*argv, "-nbio_test") == 0) 896 nbio_test = 1; 897 else if (strcmp(*argv, "-state") == 0) 898 state = 1; 899#ifndef OPENSSL_NO_PSK 900 else if (strcmp(*argv, "-psk_identity") == 0) { 901 if (--argc < 1) 902 goto bad; 903 psk_identity = *(++argv); 904 } else if (strcmp(*argv, "-psk") == 0) { 905 size_t j; 906 907 if (--argc < 1) 908 goto bad; 909 psk_key = *(++argv); 910 for (j = 0; j < strlen(psk_key); j++) { 911 if (isxdigit((unsigned char)psk_key[j])) 912 continue; 913 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv); 914 goto bad; 915 } 916 } 917#endif 918#ifndef OPENSSL_NO_SRP 919 else if (strcmp(*argv, "-srpuser") == 0) { 920 if (--argc < 1) 921 goto bad; 922 srp_arg.srplogin = *(++argv); 923 meth = TLSv1_client_method(); 924 } else if (strcmp(*argv, "-srppass") == 0) { 925 if (--argc < 1) 926 goto bad; 927 srppass = *(++argv); 928 meth = TLSv1_client_method(); 929 } else if (strcmp(*argv, "-srp_strength") == 0) { 930 if (--argc < 1) 931 goto bad; 932 srp_arg.strength = atoi(*(++argv)); 933 BIO_printf(bio_err, "SRP minimal length for N is %d\n", 934 srp_arg.strength); 935 meth = TLSv1_client_method(); 936 } else if (strcmp(*argv, "-srp_lateuser") == 0) { 937 srp_lateuser = 1; 938 meth = TLSv1_client_method(); 939 } else if (strcmp(*argv, "-srp_moregroups") == 0) { 940 srp_arg.amp = 1; 941 meth = TLSv1_client_method(); 942 } 943#endif 944#ifndef OPENSSL_NO_SSL2 945 else if (strcmp(*argv, "-ssl2") == 0) { 946 meth = SSLv2_client_method(); 947 prot_opt++; 948 } 949#endif 950#ifndef OPENSSL_NO_SSL3_METHOD 951 else if (strcmp(*argv, "-ssl3") == 0) { 952 meth = SSLv3_client_method(); 953 prot_opt++; 954 } 955#endif 956#ifndef OPENSSL_NO_TLS1 957 else if (strcmp(*argv, "-tls1_2") == 0) { 958 meth = TLSv1_2_client_method(); 959 prot_opt++; 960 } else if (strcmp(*argv, "-tls1_1") == 0) { 961 meth = TLSv1_1_client_method(); 962 prot_opt++; 963 } else if (strcmp(*argv, "-tls1") == 0) { 964 meth = TLSv1_client_method(); 965 prot_opt++; 966 } 967#endif 968#ifndef OPENSSL_NO_DTLS1 969 else if (strcmp(*argv, "-dtls") == 0) { 970 meth = DTLS_client_method(); 971 socket_type = SOCK_DGRAM; 972 prot_opt++; 973 } else if (strcmp(*argv, "-dtls1") == 0) { 974 meth = DTLSv1_client_method(); 975 socket_type = SOCK_DGRAM; 976 prot_opt++; 977 } else if (strcmp(*argv, "-dtls1_2") == 0) { 978 meth = DTLSv1_2_client_method(); 979 socket_type = SOCK_DGRAM; 980 prot_opt++; 981 } else if (strcmp(*argv, "-timeout") == 0) 982 enable_timeouts = 1; 983 else if (strcmp(*argv, "-mtu") == 0) { 984 if (--argc < 1) 985 goto bad; 986 socket_mtu = atol(*(++argv)); 987 } 988#endif 989 else if (strcmp(*argv, "-fallback_scsv") == 0) { 990 fallback_scsv = 1; 991 } else if (strcmp(*argv, "-keyform") == 0) { 992 if (--argc < 1) 993 goto bad; 994 key_format = str2fmt(*(++argv)); 995 } else if (strcmp(*argv, "-pass") == 0) { 996 if (--argc < 1) 997 goto bad; 998 passarg = *(++argv); 999 } else if (strcmp(*argv, "-cert_chain") == 0) { 1000 if (--argc < 1) 1001 goto bad; 1002 chain_file = *(++argv); 1003 } else if (strcmp(*argv, "-key") == 0) { 1004 if (--argc < 1) 1005 goto bad; 1006 key_file = *(++argv); 1007 } else if (strcmp(*argv, "-reconnect") == 0) { 1008 reconnect = 5; 1009 } else if (strcmp(*argv, "-CApath") == 0) { 1010 if (--argc < 1) 1011 goto bad; 1012 CApath = *(++argv); 1013 } else if (strcmp(*argv, "-chainCApath") == 0) { 1014 if (--argc < 1) 1015 goto bad; 1016 chCApath = *(++argv); 1017 } else if (strcmp(*argv, "-verifyCApath") == 0) { 1018 if (--argc < 1) 1019 goto bad; 1020 vfyCApath = *(++argv); 1021 } else if (strcmp(*argv, "-build_chain") == 0) 1022 build_chain = 1; 1023 else if (strcmp(*argv, "-CAfile") == 0) { 1024 if (--argc < 1) 1025 goto bad; 1026 CAfile = *(++argv); 1027 } else if (strcmp(*argv, "-chainCAfile") == 0) { 1028 if (--argc < 1) 1029 goto bad; 1030 chCAfile = *(++argv); 1031 } else if (strcmp(*argv, "-verifyCAfile") == 0) { 1032 if (--argc < 1) 1033 goto bad; 1034 vfyCAfile = *(++argv); 1035 } 1036#ifndef OPENSSL_NO_TLSEXT 1037# ifndef OPENSSL_NO_NEXTPROTONEG 1038 else if (strcmp(*argv, "-nextprotoneg") == 0) { 1039 if (--argc < 1) 1040 goto bad; 1041 next_proto_neg_in = *(++argv); 1042 } 1043# endif 1044 else if (strcmp(*argv, "-alpn") == 0) { 1045 if (--argc < 1) 1046 goto bad; 1047 alpn_in = *(++argv); 1048 } else if (strcmp(*argv, "-serverinfo") == 0) { 1049 char *c; 1050 int start = 0; 1051 int len; 1052 1053 if (--argc < 1) 1054 goto bad; 1055 c = *(++argv); 1056 serverinfo_types_count = 0; 1057 len = strlen(c); 1058 for (i = 0; i <= len; ++i) { 1059 if (i == len || c[i] == ',') { 1060 serverinfo_types[serverinfo_types_count] 1061 = atoi(c + start); 1062 serverinfo_types_count++; 1063 start = i + 1; 1064 } 1065 if (serverinfo_types_count == MAX_SI_TYPES) 1066 break; 1067 } 1068 } 1069#endif 1070#ifdef FIONBIO 1071 else if (strcmp(*argv, "-nbio") == 0) { 1072 c_nbio = 1; 1073 } 1074#endif 1075 else if (strcmp(*argv, "-starttls") == 0) { 1076 if (--argc < 1) 1077 goto bad; 1078 ++argv; 1079 if (strcmp(*argv, "smtp") == 0) 1080 starttls_proto = PROTO_SMTP; 1081 else if (strcmp(*argv, "pop3") == 0) 1082 starttls_proto = PROTO_POP3; 1083 else if (strcmp(*argv, "imap") == 0) 1084 starttls_proto = PROTO_IMAP; 1085 else if (strcmp(*argv, "ftp") == 0) 1086 starttls_proto = PROTO_FTP; 1087 else if (strcmp(*argv, "xmpp") == 0) 1088 starttls_proto = PROTO_XMPP; 1089 else 1090 goto bad; 1091 } 1092#ifndef OPENSSL_NO_ENGINE 1093 else if (strcmp(*argv, "-engine") == 0) { 1094 if (--argc < 1) 1095 goto bad; 1096 engine_id = *(++argv); 1097 } else if (strcmp(*argv, "-ssl_client_engine") == 0) { 1098 if (--argc < 1) 1099 goto bad; 1100 ssl_client_engine_id = *(++argv); 1101 } 1102#endif 1103 else if (strcmp(*argv, "-rand") == 0) { 1104 if (--argc < 1) 1105 goto bad; 1106 inrand = *(++argv); 1107 } 1108#ifndef OPENSSL_NO_TLSEXT 1109 else if (strcmp(*argv, "-servername") == 0) { 1110 if (--argc < 1) 1111 goto bad; 1112 servername = *(++argv); 1113 /* meth=TLSv1_client_method(); */ 1114 } 1115#endif 1116#ifndef OPENSSL_NO_JPAKE 1117 else if (strcmp(*argv, "-jpake") == 0) { 1118 if (--argc < 1) 1119 goto bad; 1120 jpake_secret = *++argv; 1121 } 1122#endif 1123#ifndef OPENSSL_NO_SRTP 1124 else if (strcmp(*argv, "-use_srtp") == 0) { 1125 if (--argc < 1) 1126 goto bad; 1127 srtp_profiles = *(++argv); 1128 } 1129#endif 1130 else if (strcmp(*argv, "-keymatexport") == 0) { 1131 if (--argc < 1) 1132 goto bad; 1133 keymatexportlabel = *(++argv); 1134 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 1135 if (--argc < 1) 1136 goto bad; 1137 keymatexportlen = atoi(*(++argv)); 1138 if (keymatexportlen == 0) 1139 goto bad; 1140 } else { 1141 BIO_printf(bio_err, "unknown option %s\n", *argv); 1142 badop = 1; 1143 break; 1144 } 1145 argc--; 1146 argv++; 1147 } 1148 if (badop) { 1149 bad: 1150 sc_usage(); 1151 goto end; 1152 } 1153#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK) 1154 if (jpake_secret) { 1155 if (psk_key) { 1156 BIO_printf(bio_err, "Can't use JPAKE and PSK together\n"); 1157 goto end; 1158 } 1159 psk_identity = "JPAKE"; 1160 } 1161#endif 1162 1163 if (prot_opt > 1) { 1164 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); 1165 goto end; 1166 } 1167 1168 if (prot_opt == 1 && no_prot_opt) { 1169 BIO_printf(bio_err, "Cannot supply both a protocol flag and " 1170 "\"-no_<prot>\"\n"); 1171 goto end; 1172 } 1173 1174 OpenSSL_add_ssl_algorithms(); 1175 SSL_load_error_strings(); 1176 1177#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1178 next_proto.status = -1; 1179 if (next_proto_neg_in) { 1180 next_proto.data = 1181 next_protos_parse(&next_proto.len, next_proto_neg_in); 1182 if (next_proto.data == NULL) { 1183 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1184 goto end; 1185 } 1186 } else 1187 next_proto.data = NULL; 1188#endif 1189 1190 e = setup_engine(bio_err, engine_id, 1); 1191#ifndef OPENSSL_NO_ENGINE 1192 if (ssl_client_engine_id) { 1193 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id); 1194 if (!ssl_client_engine) { 1195 BIO_printf(bio_err, "Error getting client auth engine\n"); 1196 goto end; 1197 } 1198 } 1199#endif 1200 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { 1201 BIO_printf(bio_err, "Error getting password\n"); 1202 goto end; 1203 } 1204 1205 if (key_file == NULL) 1206 key_file = cert_file; 1207 1208 if (key_file) { 1209 1210 key = load_key(bio_err, key_file, key_format, 0, pass, e, 1211 "client certificate private key file"); 1212 if (!key) { 1213 ERR_print_errors(bio_err); 1214 goto end; 1215 } 1216 1217 } 1218 1219 if (cert_file) { 1220 cert = load_cert(bio_err, cert_file, cert_format, 1221 NULL, e, "client certificate file"); 1222 1223 if (!cert) { 1224 ERR_print_errors(bio_err); 1225 goto end; 1226 } 1227 } 1228 1229 if (chain_file) { 1230 chain = load_certs(bio_err, chain_file, FORMAT_PEM, 1231 NULL, e, "client certificate chain"); 1232 if (!chain) 1233 goto end; 1234 } 1235 1236 if (crl_file) { 1237 X509_CRL *crl; 1238 crl = load_crl(crl_file, crl_format); 1239 if (!crl) { 1240 BIO_puts(bio_err, "Error loading CRL\n"); 1241 ERR_print_errors(bio_err); 1242 goto end; 1243 } 1244 crls = sk_X509_CRL_new_null(); 1245 if (!crls || !sk_X509_CRL_push(crls, crl)) { 1246 BIO_puts(bio_err, "Error adding CRL\n"); 1247 ERR_print_errors(bio_err); 1248 X509_CRL_free(crl); 1249 goto end; 1250 } 1251 } 1252 1253 if (!load_excert(&exc, bio_err)) 1254 goto end; 1255 1256 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 1257 && !RAND_status()) { 1258 BIO_printf(bio_err, 1259 "warning, not much extra random data, consider using the -rand option\n"); 1260 } 1261 if (inrand != NULL) 1262 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 1263 app_RAND_load_files(inrand)); 1264 1265 if (bio_c_out == NULL) { 1266 if (c_quiet && !c_debug) { 1267 bio_c_out = BIO_new(BIO_s_null()); 1268 if (c_msg && !bio_c_msg) 1269 bio_c_msg = BIO_new_fp(stdout, BIO_NOCLOSE); 1270 } else { 1271 if (bio_c_out == NULL) 1272 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE); 1273 } 1274 } 1275#ifndef OPENSSL_NO_SRP 1276 if (!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL)) { 1277 BIO_printf(bio_err, "Error getting password\n"); 1278 goto end; 1279 } 1280#endif 1281 1282 ctx = SSL_CTX_new(meth); 1283 if (ctx == NULL) { 1284 ERR_print_errors(bio_err); 1285 goto end; 1286 } 1287 1288 if (vpm) 1289 SSL_CTX_set1_param(ctx, vpm); 1290 1291 if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1, no_jpake)) { 1292 ERR_print_errors(bio_err); 1293 goto end; 1294 } 1295 1296 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, 1297 crls, crl_download)) { 1298 BIO_printf(bio_err, "Error loading store locations\n"); 1299 ERR_print_errors(bio_err); 1300 goto end; 1301 } 1302#ifndef OPENSSL_NO_ENGINE 1303 if (ssl_client_engine) { 1304 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { 1305 BIO_puts(bio_err, "Error setting client auth engine\n"); 1306 ERR_print_errors(bio_err); 1307 ENGINE_free(ssl_client_engine); 1308 goto end; 1309 } 1310 ENGINE_free(ssl_client_engine); 1311 } 1312#endif 1313 1314#ifndef OPENSSL_NO_PSK 1315# ifdef OPENSSL_NO_JPAKE 1316 if (psk_key != NULL) 1317# else 1318 if (psk_key != NULL || jpake_secret) 1319# endif 1320 { 1321 if (c_debug) 1322 BIO_printf(bio_c_out, 1323 "PSK key given or JPAKE in use, setting client callback\n"); 1324 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1325 } 1326#endif 1327#ifndef OPENSSL_NO_SRTP 1328 if (srtp_profiles != NULL) 1329 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 1330#endif 1331 if (exc) 1332 ssl_ctx_set_excert(ctx, exc); 1333 1334#if !defined(OPENSSL_NO_TLSEXT) 1335# if !defined(OPENSSL_NO_NEXTPROTONEG) 1336 if (next_proto.data) 1337 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1338# endif 1339 if (alpn_in) { 1340 unsigned short alpn_len; 1341 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); 1342 1343 if (alpn == NULL) { 1344 BIO_printf(bio_err, "Error parsing -alpn argument\n"); 1345 goto end; 1346 } 1347 SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len); 1348 OPENSSL_free(alpn); 1349 } 1350#endif 1351#ifndef OPENSSL_NO_TLSEXT 1352 for (i = 0; i < serverinfo_types_count; i++) { 1353 SSL_CTX_add_client_custom_ext(ctx, 1354 serverinfo_types[i], 1355 NULL, NULL, NULL, 1356 serverinfo_cli_parse_cb, NULL); 1357 } 1358#endif 1359 1360 if (state) 1361 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1362#if 0 1363 else 1364 SSL_CTX_set_cipher_list(ctx, getenv("SSL_CIPHER")); 1365#endif 1366 1367 SSL_CTX_set_verify(ctx, verify, verify_callback); 1368 1369 if ((CAfile || CApath) 1370 && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) { 1371 ERR_print_errors(bio_err); 1372 } 1373 if (!SSL_CTX_set_default_verify_paths(ctx)) { 1374 ERR_print_errors(bio_err); 1375 } 1376 1377 ssl_ctx_add_crls(ctx, crls, crl_download); 1378 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain)) 1379 goto end; 1380 1381#ifndef OPENSSL_NO_TLSEXT 1382 if (servername != NULL) { 1383 tlsextcbp.biodebug = bio_err; 1384 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1385 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1386 } 1387# ifndef OPENSSL_NO_SRP 1388 if (srp_arg.srplogin) { 1389 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { 1390 BIO_printf(bio_err, "Unable to set SRP username\n"); 1391 goto end; 1392 } 1393 srp_arg.msg = c_msg; 1394 srp_arg.debug = c_debug; 1395 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); 1396 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1397 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1398 if (c_msg || c_debug || srp_arg.amp == 0) 1399 SSL_CTX_set_srp_verify_param_callback(ctx, 1400 ssl_srp_verify_param_cb); 1401 } 1402# endif 1403#endif 1404 1405 con = SSL_new(ctx); 1406 if (sess_in) { 1407 SSL_SESSION *sess; 1408 BIO *stmp = BIO_new_file(sess_in, "r"); 1409 if (!stmp) { 1410 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1411 ERR_print_errors(bio_err); 1412 goto end; 1413 } 1414 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1415 BIO_free(stmp); 1416 if (!sess) { 1417 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1418 ERR_print_errors(bio_err); 1419 goto end; 1420 } 1421 SSL_set_session(con, sess); 1422 SSL_SESSION_free(sess); 1423 } 1424 1425 if (fallback_scsv) 1426 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 1427 1428#ifndef OPENSSL_NO_TLSEXT 1429 if (servername != NULL) { 1430 if (!SSL_set_tlsext_host_name(con, servername)) { 1431 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 1432 ERR_print_errors(bio_err); 1433 goto end; 1434 } 1435 } 1436#endif 1437#ifndef OPENSSL_NO_KRB5 1438 if (con && (kctx = kssl_ctx_new()) != NULL) { 1439 SSL_set0_kssl_ctx(con, kctx); 1440 kssl_ctx_setstring(kctx, KSSL_SERVER, host); 1441 } 1442#endif /* OPENSSL_NO_KRB5 */ 1443/* SSL_set_cipher_list(con,"RC4-MD5"); */ 1444#if 0 1445# ifdef TLSEXT_TYPE_opaque_prf_input 1446 SSL_set_tlsext_opaque_prf_input(con, "Test client", 11); 1447# endif 1448#endif 1449 1450 re_start: 1451 1452 if (init_client(&s, host, port, socket_type) == 0) { 1453 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); 1454 SHUTDOWN(s); 1455 goto end; 1456 } 1457 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 1458 1459#ifdef FIONBIO 1460 if (c_nbio) { 1461 unsigned long l = 1; 1462 BIO_printf(bio_c_out, "turning on non blocking io\n"); 1463 if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) { 1464 ERR_print_errors(bio_err); 1465 goto end; 1466 } 1467 } 1468#endif 1469 if (c_Pause & 0x01) 1470 SSL_set_debug(con, 1); 1471 1472 if (socket_type == SOCK_DGRAM) { 1473 1474 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1475 if (getsockname(s, &peer, (void *)&peerlen) < 0) { 1476 BIO_printf(bio_err, "getsockname:errno=%d\n", 1477 get_last_socket_error()); 1478 SHUTDOWN(s); 1479 goto end; 1480 } 1481 1482 (void)BIO_ctrl_set_connected(sbio, 1, &peer); 1483 1484 if (enable_timeouts) { 1485 timeout.tv_sec = 0; 1486 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1487 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1488 1489 timeout.tv_sec = 0; 1490 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1491 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1492 } 1493 1494 if (socket_mtu) { 1495 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 1496 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 1497 DTLS_get_link_min_mtu(con)); 1498 BIO_free(sbio); 1499 goto shut; 1500 } 1501 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1502 if (!DTLS_set_link_mtu(con, socket_mtu)) { 1503 BIO_printf(bio_err, "Failed to set MTU\n"); 1504 BIO_free(sbio); 1505 goto shut; 1506 } 1507 } else 1508 /* want to do MTU discovery */ 1509 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1510 } else 1511 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1512 1513 if (nbio_test) { 1514 BIO *test; 1515 1516 test = BIO_new(BIO_f_nbio_test()); 1517 sbio = BIO_push(test, sbio); 1518 } 1519 1520 if (c_debug) { 1521 SSL_set_debug(con, 1); 1522 BIO_set_callback(sbio, bio_dump_callback); 1523 BIO_set_callback_arg(sbio, (char *)bio_c_out); 1524 } 1525 if (c_msg) { 1526#ifndef OPENSSL_NO_SSL_TRACE 1527 if (c_msg == 2) 1528 SSL_set_msg_callback(con, SSL_trace); 1529 else 1530#endif 1531 SSL_set_msg_callback(con, msg_cb); 1532 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out); 1533 } 1534#ifndef OPENSSL_NO_TLSEXT 1535 if (c_tlsextdebug) { 1536 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1537 SSL_set_tlsext_debug_arg(con, bio_c_out); 1538 } 1539 if (c_status_req) { 1540 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 1541 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 1542 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 1543# if 0 1544 { 1545 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null(); 1546 OCSP_RESPID *id = OCSP_RESPID_new(); 1547 id->value.byKey = ASN1_OCTET_STRING_new(); 1548 id->type = V_OCSP_RESPID_KEY; 1549 ASN1_STRING_set(id->value.byKey, "Hello World", -1); 1550 sk_OCSP_RESPID_push(ids, id); 1551 SSL_set_tlsext_status_ids(con, ids); 1552 } 1553# endif 1554 } 1555#endif 1556#ifndef OPENSSL_NO_JPAKE 1557 if (jpake_secret) 1558 jpake_client_auth(bio_c_out, sbio, jpake_secret); 1559#endif 1560 1561 SSL_set_bio(con, sbio, sbio); 1562 SSL_set_connect_state(con); 1563 1564 /* ok, lets connect */ 1565 if (fileno_stdin() > SSL_get_fd(con)) 1566 width = fileno_stdin() + 1; 1567 else 1568 width = SSL_get_fd(con) + 1; 1569 1570 read_tty = 1; 1571 write_tty = 0; 1572 tty_on = 0; 1573 read_ssl = 1; 1574 write_ssl = 1; 1575 1576 cbuf_len = 0; 1577 cbuf_off = 0; 1578 sbuf_len = 0; 1579 sbuf_off = 0; 1580 1581 /* This is an ugly hack that does a lot of assumptions */ 1582 /* 1583 * We do have to handle multi-line responses which may come in a single 1584 * packet or not. We therefore have to use BIO_gets() which does need a 1585 * buffering BIO. So during the initial chitchat we do push a buffering 1586 * BIO into the chain that is removed again later on to not disturb the 1587 * rest of the s_client operation. 1588 */ 1589 if (starttls_proto == PROTO_SMTP) { 1590 int foundit = 0; 1591 BIO *fbio = BIO_new(BIO_f_buffer()); 1592 BIO_push(fbio, sbio); 1593 /* wait for multi-line response to end from SMTP */ 1594 do { 1595 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1596 } 1597 while (mbuf_len > 3 && mbuf[3] == '-'); 1598 /* STARTTLS command requires EHLO... */ 1599 BIO_printf(fbio, "EHLO openssl.client.net\r\n"); 1600 (void)BIO_flush(fbio); 1601 /* wait for multi-line response to end EHLO SMTP response */ 1602 do { 1603 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1604 if (strstr(mbuf, "STARTTLS")) 1605 foundit = 1; 1606 } 1607 while (mbuf_len > 3 && mbuf[3] == '-'); 1608 (void)BIO_flush(fbio); 1609 BIO_pop(fbio); 1610 BIO_free(fbio); 1611 if (!foundit) 1612 BIO_printf(bio_err, 1613 "didn't found starttls in server response," 1614 " try anyway...\n"); 1615 BIO_printf(sbio, "STARTTLS\r\n"); 1616 BIO_read(sbio, sbuf, BUFSIZZ); 1617 } else if (starttls_proto == PROTO_POP3) { 1618 BIO_read(sbio, mbuf, BUFSIZZ); 1619 BIO_printf(sbio, "STLS\r\n"); 1620 BIO_read(sbio, sbuf, BUFSIZZ); 1621 } else if (starttls_proto == PROTO_IMAP) { 1622 int foundit = 0; 1623 BIO *fbio = BIO_new(BIO_f_buffer()); 1624 BIO_push(fbio, sbio); 1625 BIO_gets(fbio, mbuf, BUFSIZZ); 1626 /* STARTTLS command requires CAPABILITY... */ 1627 BIO_printf(fbio, ". CAPABILITY\r\n"); 1628 (void)BIO_flush(fbio); 1629 /* wait for multi-line CAPABILITY response */ 1630 do { 1631 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1632 if (strstr(mbuf, "STARTTLS")) 1633 foundit = 1; 1634 } 1635 while (mbuf_len > 3 && mbuf[0] != '.'); 1636 (void)BIO_flush(fbio); 1637 BIO_pop(fbio); 1638 BIO_free(fbio); 1639 if (!foundit) 1640 BIO_printf(bio_err, 1641 "didn't found STARTTLS in server response," 1642 " try anyway...\n"); 1643 BIO_printf(sbio, ". STARTTLS\r\n"); 1644 BIO_read(sbio, sbuf, BUFSIZZ); 1645 } else if (starttls_proto == PROTO_FTP) { 1646 BIO *fbio = BIO_new(BIO_f_buffer()); 1647 BIO_push(fbio, sbio); 1648 /* wait for multi-line response to end from FTP */ 1649 do { 1650 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1651 } 1652 while (mbuf_len > 3 && mbuf[3] == '-'); 1653 (void)BIO_flush(fbio); 1654 BIO_pop(fbio); 1655 BIO_free(fbio); 1656 BIO_printf(sbio, "AUTH TLS\r\n"); 1657 BIO_read(sbio, sbuf, BUFSIZZ); 1658 } 1659 if (starttls_proto == PROTO_XMPP) { 1660 int seen = 0; 1661 BIO_printf(sbio, "<stream:stream " 1662 "xmlns:stream='http://etherx.jabber.org/streams' " 1663 "xmlns='jabber:client' to='%s' version='1.0'>", host); 1664 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1665 mbuf[seen] = 0; 1666 while (!strstr 1667 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) { 1668 if (strstr(mbuf, "/stream:features>")) 1669 goto shut; 1670 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1671 if (seen <= 0) 1672 goto shut; 1673 mbuf[seen] = 0; 1674 } 1675 BIO_printf(sbio, 1676 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 1677 seen = BIO_read(sbio, sbuf, BUFSIZZ); 1678 sbuf[seen] = 0; 1679 if (!strstr(sbuf, "<proceed")) 1680 goto shut; 1681 mbuf[0] = 0; 1682 } 1683 1684 for (;;) { 1685 FD_ZERO(&readfds); 1686 FD_ZERO(&writefds); 1687 1688 if ((SSL_version(con) == DTLS1_VERSION) && 1689 DTLSv1_get_timeout(con, &timeout)) 1690 timeoutp = &timeout; 1691 else 1692 timeoutp = NULL; 1693 1694 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { 1695 in_init = 1; 1696 tty_on = 0; 1697 } else { 1698 tty_on = 1; 1699 if (in_init) { 1700 in_init = 0; 1701#if 0 /* This test doesn't really work as intended 1702 * (needs to be fixed) */ 1703# ifndef OPENSSL_NO_TLSEXT 1704 if (servername != NULL && !SSL_session_reused(con)) { 1705 BIO_printf(bio_c_out, 1706 "Server did %sacknowledge servername extension.\n", 1707 tlsextcbp.ack ? "" : "not "); 1708 } 1709# endif 1710#endif 1711 if (sess_out) { 1712 BIO *stmp = BIO_new_file(sess_out, "w"); 1713 if (stmp) { 1714 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 1715 BIO_free(stmp); 1716 } else 1717 BIO_printf(bio_err, "Error writing session file %s\n", 1718 sess_out); 1719 } 1720 if (c_brief) { 1721 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n"); 1722 print_ssl_summary(bio_err, con); 1723 } 1724 1725 print_stuff(bio_c_out, con, full_log); 1726 if (full_log > 0) 1727 full_log--; 1728 1729 if (starttls_proto) { 1730 BIO_printf(bio_err, "%s", mbuf); 1731 /* We don't need to know any more */ 1732 starttls_proto = PROTO_OFF; 1733 } 1734 1735 if (reconnect) { 1736 reconnect--; 1737 BIO_printf(bio_c_out, 1738 "drop connection and then reconnect\n"); 1739 SSL_shutdown(con); 1740 SSL_set_connect_state(con); 1741 SHUTDOWN(SSL_get_fd(con)); 1742 goto re_start; 1743 } 1744 } 1745 } 1746 1747 ssl_pending = read_ssl && SSL_pending(con); 1748 1749 if (!ssl_pending) { 1750#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5) 1751 if (tty_on) { 1752 if (read_tty) 1753 openssl_fdset(fileno_stdin(), &readfds); 1754#if !defined(OPENSSL_SYS_VMS) 1755 if (write_tty) 1756 openssl_fdset(fileno_stdout(), &writefds); 1757#endif 1758 } 1759 if (read_ssl) 1760 openssl_fdset(SSL_get_fd(con), &readfds); 1761 if (write_ssl) 1762 openssl_fdset(SSL_get_fd(con), &writefds); 1763#else 1764 if (!tty_on || !write_tty) { 1765 if (read_ssl) 1766 openssl_fdset(SSL_get_fd(con), &readfds); 1767 if (write_ssl) 1768 openssl_fdset(SSL_get_fd(con), &writefds); 1769 } 1770#endif 1771/*- printf("mode tty(%d %d%d) ssl(%d%d)\n", 1772 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1773 1774 /* 1775 * Note: under VMS with SOCKETSHR the second parameter is 1776 * currently of type (int *) whereas under other systems it is 1777 * (void *) if you don't have a cast it will choke the compiler: 1778 * if you do have a cast then you can either go for (int *) or 1779 * (void *). 1780 */ 1781#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1782 /* 1783 * Under Windows/DOS we make the assumption that we can always 1784 * write to the tty: therefore if we need to write to the tty we 1785 * just fall through. Otherwise we timeout the select every 1786 * second and see if there are any keypresses. Note: this is a 1787 * hack, in a proper Windows application we wouldn't do this. 1788 */ 1789 i = 0; 1790 if (!write_tty) { 1791 if (read_tty) { 1792 tv.tv_sec = 1; 1793 tv.tv_usec = 0; 1794 i = select(width, (void *)&readfds, (void *)&writefds, 1795 NULL, &tv); 1796# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1797 if (!i && (!_kbhit() || !read_tty)) 1798 continue; 1799# else 1800 if (!i && (!((_kbhit()) 1801 || (WAIT_OBJECT_0 == 1802 WaitForSingleObject(GetStdHandle 1803 (STD_INPUT_HANDLE), 1804 0))) 1805 || !read_tty)) 1806 continue; 1807# endif 1808 } else 1809 i = select(width, (void *)&readfds, (void *)&writefds, 1810 NULL, timeoutp); 1811 } 1812#elif defined(OPENSSL_SYS_NETWARE) 1813 if (!write_tty) { 1814 if (read_tty) { 1815 tv.tv_sec = 1; 1816 tv.tv_usec = 0; 1817 i = select(width, (void *)&readfds, (void *)&writefds, 1818 NULL, &tv); 1819 } else 1820 i = select(width, (void *)&readfds, (void *)&writefds, 1821 NULL, timeoutp); 1822 } 1823#elif defined(OPENSSL_SYS_BEOS_R5) 1824 /* Under BeOS-R5 the situation is similar to DOS */ 1825 i = 0; 1826 stdin_set = 0; 1827 (void)fcntl(fileno_stdin(), F_SETFL, O_NONBLOCK); 1828 if (!write_tty) { 1829 if (read_tty) { 1830 tv.tv_sec = 1; 1831 tv.tv_usec = 0; 1832 i = select(width, (void *)&readfds, (void *)&writefds, 1833 NULL, &tv); 1834 if (read(fileno_stdin(), sbuf, 0) >= 0) 1835 stdin_set = 1; 1836 if (!i && (stdin_set != 1 || !read_tty)) 1837 continue; 1838 } else 1839 i = select(width, (void *)&readfds, (void *)&writefds, 1840 NULL, timeoutp); 1841 } 1842 (void)fcntl(fileno_stdin(), F_SETFL, 0); 1843#else 1844 i = select(width, (void *)&readfds, (void *)&writefds, 1845 NULL, timeoutp); 1846#endif 1847 if (i < 0) { 1848 BIO_printf(bio_err, "bad select %d\n", 1849 get_last_socket_error()); 1850 goto shut; 1851 /* goto end; */ 1852 } 1853 } 1854 1855 if ((SSL_version(con) == DTLS1_VERSION) 1856 && DTLSv1_handle_timeout(con) > 0) { 1857 BIO_printf(bio_err, "TIMEOUT occured\n"); 1858 } 1859 1860 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { 1861 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); 1862 switch (SSL_get_error(con, k)) { 1863 case SSL_ERROR_NONE: 1864 cbuf_off += k; 1865 cbuf_len -= k; 1866 if (k <= 0) 1867 goto end; 1868 /* we have done a write(con,NULL,0); */ 1869 if (cbuf_len <= 0) { 1870 read_tty = 1; 1871 write_ssl = 0; 1872 } else { /* if (cbuf_len > 0) */ 1873 1874 read_tty = 0; 1875 write_ssl = 1; 1876 } 1877 break; 1878 case SSL_ERROR_WANT_WRITE: 1879 BIO_printf(bio_c_out, "write W BLOCK\n"); 1880 write_ssl = 1; 1881 read_tty = 0; 1882 break; 1883 case SSL_ERROR_WANT_READ: 1884 BIO_printf(bio_c_out, "write R BLOCK\n"); 1885 write_tty = 0; 1886 read_ssl = 1; 1887 write_ssl = 0; 1888 break; 1889 case SSL_ERROR_WANT_X509_LOOKUP: 1890 BIO_printf(bio_c_out, "write X BLOCK\n"); 1891 break; 1892 case SSL_ERROR_ZERO_RETURN: 1893 if (cbuf_len != 0) { 1894 BIO_printf(bio_c_out, "shutdown\n"); 1895 ret = 0; 1896 goto shut; 1897 } else { 1898 read_tty = 1; 1899 write_ssl = 0; 1900 break; 1901 } 1902 1903 case SSL_ERROR_SYSCALL: 1904 if ((k != 0) || (cbuf_len != 0)) { 1905 BIO_printf(bio_err, "write:errno=%d\n", 1906 get_last_socket_error()); 1907 goto shut; 1908 } else { 1909 read_tty = 1; 1910 write_ssl = 0; 1911 } 1912 break; 1913 case SSL_ERROR_SSL: 1914 ERR_print_errors(bio_err); 1915 goto shut; 1916 } 1917 } 1918#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) || defined(OPENSSL_SYS_VMS) 1919 /* Assume Windows/DOS/BeOS can always write */ 1920 else if (!ssl_pending && write_tty) 1921#else 1922 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds)) 1923#endif 1924 { 1925#ifdef CHARSET_EBCDIC 1926 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); 1927#endif 1928 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); 1929 1930 if (i <= 0) { 1931 BIO_printf(bio_c_out, "DONE\n"); 1932 ret = 0; 1933 goto shut; 1934 /* goto end; */ 1935 } 1936 1937 sbuf_len -= i;; 1938 sbuf_off += i; 1939 if (sbuf_len <= 0) { 1940 read_ssl = 1; 1941 write_tty = 0; 1942 } 1943 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { 1944#ifdef RENEG 1945 { 1946 static int iiii; 1947 if (++iiii == 52) { 1948 SSL_renegotiate(con); 1949 iiii = 0; 1950 } 1951 } 1952#endif 1953#if 1 1954 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 1955#else 1956/* Demo for pending and peek :-) */ 1957 k = SSL_read(con, sbuf, 16); 1958 { 1959 char zbuf[10240]; 1960 printf("read=%d pending=%d peek=%d\n", k, SSL_pending(con), 1961 SSL_peek(con, zbuf, 10240)); 1962 } 1963#endif 1964 1965 switch (SSL_get_error(con, k)) { 1966 case SSL_ERROR_NONE: 1967 if (k <= 0) 1968 goto end; 1969 sbuf_off = 0; 1970 sbuf_len = k; 1971 1972 read_ssl = 0; 1973 write_tty = 1; 1974 break; 1975 case SSL_ERROR_WANT_WRITE: 1976 BIO_printf(bio_c_out, "read W BLOCK\n"); 1977 write_ssl = 1; 1978 read_tty = 0; 1979 break; 1980 case SSL_ERROR_WANT_READ: 1981 BIO_printf(bio_c_out, "read R BLOCK\n"); 1982 write_tty = 0; 1983 read_ssl = 1; 1984 if ((read_tty == 0) && (write_ssl == 0)) 1985 write_ssl = 1; 1986 break; 1987 case SSL_ERROR_WANT_X509_LOOKUP: 1988 BIO_printf(bio_c_out, "read X BLOCK\n"); 1989 break; 1990 case SSL_ERROR_SYSCALL: 1991 ret = get_last_socket_error(); 1992 if (c_brief) 1993 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n"); 1994 else 1995 BIO_printf(bio_err, "read:errno=%d\n", ret); 1996 goto shut; 1997 case SSL_ERROR_ZERO_RETURN: 1998 BIO_printf(bio_c_out, "closed\n"); 1999 ret = 0; 2000 goto shut; 2001 case SSL_ERROR_SSL: 2002 ERR_print_errors(bio_err); 2003 goto shut; 2004 /* break; */ 2005 } 2006 } 2007#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 2008# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 2009 else if (_kbhit()) 2010# else 2011 else if ((_kbhit()) 2012 || (WAIT_OBJECT_0 == 2013 WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) 2014# endif 2015#elif defined (OPENSSL_SYS_NETWARE) 2016 else if (_kbhit()) 2017#elif defined(OPENSSL_SYS_BEOS_R5) 2018 else if (stdin_set) 2019#else 2020 else if (FD_ISSET(fileno_stdin(), &readfds)) 2021#endif 2022 { 2023 if (crlf) { 2024 int j, lf_num; 2025 2026 i = raw_read_stdin(cbuf, BUFSIZZ / 2); 2027 lf_num = 0; 2028 /* both loops are skipped when i <= 0 */ 2029 for (j = 0; j < i; j++) 2030 if (cbuf[j] == '\n') 2031 lf_num++; 2032 for (j = i - 1; j >= 0; j--) { 2033 cbuf[j + lf_num] = cbuf[j]; 2034 if (cbuf[j] == '\n') { 2035 lf_num--; 2036 i++; 2037 cbuf[j + lf_num] = '\r'; 2038 } 2039 } 2040 assert(lf_num == 0); 2041 } else 2042 i = raw_read_stdin(cbuf, BUFSIZZ); 2043 2044 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) { 2045 BIO_printf(bio_err, "DONE\n"); 2046 ret = 0; 2047 goto shut; 2048 } 2049 2050 if ((!c_ign_eof) && (cbuf[0] == 'R')) { 2051 BIO_printf(bio_err, "RENEGOTIATING\n"); 2052 SSL_renegotiate(con); 2053 cbuf_len = 0; 2054 } 2055#ifndef OPENSSL_NO_HEARTBEATS 2056 else if ((!c_ign_eof) && (cbuf[0] == 'B')) { 2057 BIO_printf(bio_err, "HEARTBEATING\n"); 2058 SSL_heartbeat(con); 2059 cbuf_len = 0; 2060 } 2061#endif 2062 else { 2063 cbuf_len = i; 2064 cbuf_off = 0; 2065#ifdef CHARSET_EBCDIC 2066 ebcdic2ascii(cbuf, cbuf, i); 2067#endif 2068 } 2069 2070 write_ssl = 1; 2071 read_tty = 0; 2072 } 2073 } 2074 2075 ret = 0; 2076 shut: 2077 if (in_init) 2078 print_stuff(bio_c_out, con, full_log); 2079 SSL_shutdown(con); 2080 SHUTDOWN(SSL_get_fd(con)); 2081 end: 2082 if (con != NULL) { 2083 if (prexit != 0) 2084 print_stuff(bio_c_out, con, 1); 2085 SSL_free(con); 2086 } 2087#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 2088 if (next_proto.data) 2089 OPENSSL_free(next_proto.data); 2090#endif 2091 if (ctx != NULL) 2092 SSL_CTX_free(ctx); 2093 if (cert) 2094 X509_free(cert); 2095 if (crls) 2096 sk_X509_CRL_pop_free(crls, X509_CRL_free); 2097 if (key) 2098 EVP_PKEY_free(key); 2099 if (chain) 2100 sk_X509_pop_free(chain, X509_free); 2101 if (pass) 2102 OPENSSL_free(pass); 2103#ifndef OPENSSL_NO_SRP 2104 OPENSSL_free(srp_arg.srppassin); 2105#endif 2106 if (vpm) 2107 X509_VERIFY_PARAM_free(vpm); 2108 ssl_excert_free(exc); 2109 if (ssl_args) 2110 sk_OPENSSL_STRING_free(ssl_args); 2111 if (cctx) 2112 SSL_CONF_CTX_free(cctx); 2113#ifndef OPENSSL_NO_JPAKE 2114 if (jpake_secret && psk_key) 2115 OPENSSL_free(psk_key); 2116#endif 2117 if (cbuf != NULL) { 2118 OPENSSL_cleanse(cbuf, BUFSIZZ); 2119 OPENSSL_free(cbuf); 2120 } 2121 if (sbuf != NULL) { 2122 OPENSSL_cleanse(sbuf, BUFSIZZ); 2123 OPENSSL_free(sbuf); 2124 } 2125 if (mbuf != NULL) { 2126 OPENSSL_cleanse(mbuf, BUFSIZZ); 2127 OPENSSL_free(mbuf); 2128 } 2129 release_engine(e); 2130 if (bio_c_out != NULL) { 2131 BIO_free(bio_c_out); 2132 bio_c_out = NULL; 2133 } 2134 if (bio_c_msg != NULL) { 2135 BIO_free(bio_c_msg); 2136 bio_c_msg = NULL; 2137 } 2138 SSL_COMP_free_compression_methods(); 2139 apps_shutdown(); 2140 OPENSSL_EXIT(ret); 2141} 2142 2143static void print_stuff(BIO *bio, SSL *s, int full) 2144{ 2145 X509 *peer = NULL; 2146 char *p; 2147 static const char *space = " "; 2148 char buf[BUFSIZ]; 2149 STACK_OF(X509) *sk; 2150 STACK_OF(X509_NAME) *sk2; 2151 const SSL_CIPHER *c; 2152 X509_NAME *xn; 2153 int j, i; 2154#ifndef OPENSSL_NO_COMP 2155 const COMP_METHOD *comp, *expansion; 2156#endif 2157 unsigned char *exportedkeymat; 2158 2159 if (full) { 2160 int got_a_chain = 0; 2161 2162 sk = SSL_get_peer_cert_chain(s); 2163 if (sk != NULL) { 2164 got_a_chain = 1; /* we don't have it for SSL2 (yet) */ 2165 2166 BIO_printf(bio, "---\nCertificate chain\n"); 2167 for (i = 0; i < sk_X509_num(sk); i++) { 2168 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)), 2169 buf, sizeof(buf)); 2170 BIO_printf(bio, "%2d s:%s\n", i, buf); 2171 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)), 2172 buf, sizeof(buf)); 2173 BIO_printf(bio, " i:%s\n", buf); 2174 if (c_showcerts) 2175 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 2176 } 2177 } 2178 2179 BIO_printf(bio, "---\n"); 2180 peer = SSL_get_peer_certificate(s); 2181 if (peer != NULL) { 2182 BIO_printf(bio, "Server certificate\n"); 2183 2184 /* Redundant if we showed the whole chain */ 2185 if (!(c_showcerts && got_a_chain)) 2186 PEM_write_bio_X509(bio, peer); 2187 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof(buf)); 2188 BIO_printf(bio, "subject=%s\n", buf); 2189 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof(buf)); 2190 BIO_printf(bio, "issuer=%s\n", buf); 2191 } else 2192 BIO_printf(bio, "no peer certificate available\n"); 2193 2194 sk2 = SSL_get_client_CA_list(s); 2195 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { 2196 BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); 2197 for (i = 0; i < sk_X509_NAME_num(sk2); i++) { 2198 xn = sk_X509_NAME_value(sk2, i); 2199 X509_NAME_oneline(xn, buf, sizeof(buf)); 2200 BIO_write(bio, buf, strlen(buf)); 2201 BIO_write(bio, "\n", 1); 2202 } 2203 } else { 2204 BIO_printf(bio, "---\nNo client certificate CA names sent\n"); 2205 } 2206 p = SSL_get_shared_ciphers(s, buf, sizeof(buf)); 2207 if (p != NULL) { 2208 /* 2209 * This works only for SSL 2. In later protocol versions, the 2210 * client does not know what other ciphers (in addition to the 2211 * one to be used in the current connection) the server supports. 2212 */ 2213 2214 BIO_printf(bio, 2215 "---\nCiphers common between both SSL endpoints:\n"); 2216 j = i = 0; 2217 while (*p) { 2218 if (*p == ':') { 2219 BIO_write(bio, space, 15 - j % 25); 2220 i++; 2221 j = 0; 2222 BIO_write(bio, ((i % 3) ? " " : "\n"), 1); 2223 } else { 2224 BIO_write(bio, p, 1); 2225 j++; 2226 } 2227 p++; 2228 } 2229 BIO_write(bio, "\n", 1); 2230 } 2231 2232 ssl_print_sigalgs(bio, s); 2233 ssl_print_tmp_key(bio, s); 2234 2235 BIO_printf(bio, 2236 "---\nSSL handshake has read %ld bytes and written %ld bytes\n", 2237 BIO_number_read(SSL_get_rbio(s)), 2238 BIO_number_written(SSL_get_wbio(s))); 2239 } 2240 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, ")); 2241 c = SSL_get_current_cipher(s); 2242 BIO_printf(bio, "%s, Cipher is %s\n", 2243 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 2244 if (peer != NULL) { 2245 EVP_PKEY *pktmp; 2246 pktmp = X509_get_pubkey(peer); 2247 BIO_printf(bio, "Server public key is %d bit\n", 2248 EVP_PKEY_bits(pktmp)); 2249 EVP_PKEY_free(pktmp); 2250 } 2251 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 2252 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 2253#ifndef OPENSSL_NO_COMP 2254 comp = SSL_get_current_compression(s); 2255 expansion = SSL_get_current_expansion(s); 2256 BIO_printf(bio, "Compression: %s\n", 2257 comp ? SSL_COMP_get_name(comp) : "NONE"); 2258 BIO_printf(bio, "Expansion: %s\n", 2259 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 2260#endif 2261 2262#ifdef SSL_DEBUG 2263 { 2264 /* Print out local port of connection: useful for debugging */ 2265 int sock; 2266 struct sockaddr_in ladd; 2267 socklen_t ladd_size = sizeof(ladd); 2268 sock = SSL_get_fd(s); 2269 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size); 2270 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); 2271 } 2272#endif 2273 2274#if !defined(OPENSSL_NO_TLSEXT) 2275# if !defined(OPENSSL_NO_NEXTPROTONEG) 2276 if (next_proto.status != -1) { 2277 const unsigned char *proto; 2278 unsigned int proto_len; 2279 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 2280 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 2281 BIO_write(bio, proto, proto_len); 2282 BIO_write(bio, "\n", 1); 2283 } 2284# endif 2285 { 2286 const unsigned char *proto; 2287 unsigned int proto_len; 2288 SSL_get0_alpn_selected(s, &proto, &proto_len); 2289 if (proto_len > 0) { 2290 BIO_printf(bio, "ALPN protocol: "); 2291 BIO_write(bio, proto, proto_len); 2292 BIO_write(bio, "\n", 1); 2293 } else 2294 BIO_printf(bio, "No ALPN negotiated\n"); 2295 } 2296#endif 2297 2298#ifndef OPENSSL_NO_SRTP 2299 { 2300 SRTP_PROTECTION_PROFILE *srtp_profile = 2301 SSL_get_selected_srtp_profile(s); 2302 2303 if (srtp_profile) 2304 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 2305 srtp_profile->name); 2306 } 2307#endif 2308 2309 SSL_SESSION_print(bio, SSL_get_session(s)); 2310 if (keymatexportlabel != NULL) { 2311 BIO_printf(bio, "Keying material exporter:\n"); 2312 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 2313 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 2314 exportedkeymat = OPENSSL_malloc(keymatexportlen); 2315 if (exportedkeymat != NULL) { 2316 if (!SSL_export_keying_material(s, exportedkeymat, 2317 keymatexportlen, 2318 keymatexportlabel, 2319 strlen(keymatexportlabel), 2320 NULL, 0, 0)) { 2321 BIO_printf(bio, " Error\n"); 2322 } else { 2323 BIO_printf(bio, " Keying material: "); 2324 for (i = 0; i < keymatexportlen; i++) 2325 BIO_printf(bio, "%02X", exportedkeymat[i]); 2326 BIO_printf(bio, "\n"); 2327 } 2328 OPENSSL_free(exportedkeymat); 2329 } 2330 } 2331 BIO_printf(bio, "---\n"); 2332 if (peer != NULL) 2333 X509_free(peer); 2334 /* flush, or debugging output gets mixed with http response */ 2335 (void)BIO_flush(bio); 2336} 2337 2338#ifndef OPENSSL_NO_TLSEXT 2339 2340static int ocsp_resp_cb(SSL *s, void *arg) 2341{ 2342 const unsigned char *p; 2343 int len; 2344 OCSP_RESPONSE *rsp; 2345 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 2346 BIO_puts(arg, "OCSP response: "); 2347 if (!p) { 2348 BIO_puts(arg, "no response sent\n"); 2349 return 1; 2350 } 2351 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 2352 if (!rsp) { 2353 BIO_puts(arg, "response parse error\n"); 2354 BIO_dump_indent(arg, (char *)p, len, 4); 2355 return 0; 2356 } 2357 BIO_puts(arg, "\n======================================\n"); 2358 OCSP_RESPONSE_print(arg, rsp, 0); 2359 BIO_puts(arg, "======================================\n"); 2360 OCSP_RESPONSE_free(rsp); 2361 return 1; 2362} 2363 2364#endif 2365