s_client.c revision 280304
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; 205 206#ifdef FIONBIO 207static int c_nbio = 0; 208#endif 209static int c_Pause = 0; 210static int c_debug = 0; 211#ifndef OPENSSL_NO_TLSEXT 212static int c_tlsextdebug = 0; 213static int c_status_req = 0; 214#endif 215static int c_msg = 0; 216static int c_showcerts = 0; 217 218static char *keymatexportlabel = NULL; 219static int keymatexportlen = 20; 220 221static void sc_usage(void); 222static void print_stuff(BIO *berr, SSL *con, int full); 223#ifndef OPENSSL_NO_TLSEXT 224static int ocsp_resp_cb(SSL *s, void *arg); 225#endif 226static BIO *bio_c_out = NULL; 227static int c_quiet = 0; 228static int c_ign_eof = 0; 229 230#ifndef OPENSSL_NO_PSK 231/* Default PSK identity and key */ 232static char *psk_identity = "Client_identity"; 233/* 234 * char *psk_key=NULL; by default PSK is not used 235 */ 236 237static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, 238 unsigned int max_identity_len, 239 unsigned char *psk, 240 unsigned int max_psk_len) 241{ 242 unsigned int psk_len = 0; 243 int ret; 244 BIGNUM *bn = NULL; 245 246 if (c_debug) 247 BIO_printf(bio_c_out, "psk_client_cb\n"); 248 if (!hint) { 249 /* no ServerKeyExchange message */ 250 if (c_debug) 251 BIO_printf(bio_c_out, 252 "NULL received PSK identity hint, continuing anyway\n"); 253 } else if (c_debug) 254 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); 255 256 /* 257 * lookup PSK identity and PSK key based on the given identity hint here 258 */ 259 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity); 260 if (ret < 0 || (unsigned int)ret > max_identity_len) 261 goto out_err; 262 if (c_debug) 263 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, 264 ret); 265 ret = BN_hex2bn(&bn, psk_key); 266 if (!ret) { 267 BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n", 268 psk_key); 269 if (bn) 270 BN_free(bn); 271 return 0; 272 } 273 274 if ((unsigned int)BN_num_bytes(bn) > max_psk_len) { 275 BIO_printf(bio_err, 276 "psk buffer of callback is too small (%d) for key (%d)\n", 277 max_psk_len, BN_num_bytes(bn)); 278 BN_free(bn); 279 return 0; 280 } 281 282 psk_len = BN_bn2bin(bn, psk); 283 BN_free(bn); 284 if (psk_len == 0) 285 goto out_err; 286 287 if (c_debug) 288 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len); 289 290 return psk_len; 291 out_err: 292 if (c_debug) 293 BIO_printf(bio_err, "Error in PSK client callback\n"); 294 return 0; 295} 296#endif 297 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); 307 308 BIO_printf(bio_err, 309 " -verify arg - turn on peer certificate verification\n"); 310 BIO_printf(bio_err, 311 " -verify_return_error - return verification errors\n"); 312 BIO_printf(bio_err, 313 " -cert arg - certificate file to use, PEM format assumed\n"); 314 BIO_printf(bio_err, 315 " -certform arg - certificate format (PEM or DER) PEM default\n"); 316 BIO_printf(bio_err, 317 " -key arg - Private key file to use, in cert file if\n"); 318 BIO_printf(bio_err, " not specified but cert file is.\n"); 319 BIO_printf(bio_err, 320 " -keyform arg - key format (PEM or DER) PEM default\n"); 321 BIO_printf(bio_err, 322 " -pass arg - private key file pass phrase source\n"); 323 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n"); 324 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n"); 325 BIO_printf(bio_err, 326 " -reconnect - Drop and re-make the connection with the same Session-ID\n"); 327 BIO_printf(bio_err, 328 " -pause - sleep(1) after each read(2) and write(2) system call\n"); 329 BIO_printf(bio_err, 330 " -prexit - print session information even on connection failure\n"); 331 BIO_printf(bio_err, 332 " -showcerts - show all certificates in the chain\n"); 333 BIO_printf(bio_err, " -debug - extra output\n"); 334#ifdef WATT32 335 BIO_printf(bio_err, " -wdebug - WATT-32 tcp debugging\n"); 336#endif 337 BIO_printf(bio_err, " -msg - Show protocol messages\n"); 338 BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n"); 339 BIO_printf(bio_err, " -state - print the 'ssl' states\n"); 340#ifdef FIONBIO 341 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n"); 342#endif 343 BIO_printf(bio_err, 344 " -crlf - convert LF from terminal into CRLF\n"); 345 BIO_printf(bio_err, " -quiet - no s_client output\n"); 346 BIO_printf(bio_err, 347 " -ign_eof - ignore input eof (default when -quiet)\n"); 348 BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n"); 349#ifndef OPENSSL_NO_PSK 350 BIO_printf(bio_err, " -psk_identity arg - PSK identity\n"); 351 BIO_printf(bio_err, " -psk arg - PSK in hex (without 0x)\n"); 352# ifndef OPENSSL_NO_JPAKE 353 BIO_printf(bio_err, " -jpake arg - JPAKE secret to use\n"); 354# endif 355#endif 356#ifndef OPENSSL_NO_SRP 357 BIO_printf(bio_err, 358 " -srpuser user - SRP authentification for 'user'\n"); 359 BIO_printf(bio_err, " -srppass arg - password for 'user'\n"); 360 BIO_printf(bio_err, 361 " -srp_lateuser - SRP username into second ClientHello message\n"); 362 BIO_printf(bio_err, 363 " -srp_moregroups - Tolerate other than the known g N values.\n"); 364 BIO_printf(bio_err, 365 " -srp_strength int - minimal length in bits for N (default %d).\n", 366 SRP_MINIMAL_N); 367#endif 368 BIO_printf(bio_err, " -ssl2 - just use SSLv2\n"); 369#ifndef OPENSSL_NO_SSL3_METHOD 370 BIO_printf(bio_err, " -ssl3 - just use SSLv3\n"); 371#endif 372 BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n"); 373 BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n"); 374 BIO_printf(bio_err, " -tls1 - just use TLSv1\n"); 375 BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n"); 376 BIO_printf(bio_err, " -fallback_scsv - send TLS_FALLBACK_SCSV\n"); 377 BIO_printf(bio_err, " -mtu - set the link layer MTU\n"); 378 BIO_printf(bio_err, 379 " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); 380 BIO_printf(bio_err, 381 " -bugs - Switch on all SSL implementation bug workarounds\n"); 382 BIO_printf(bio_err, 383 " -serverpref - Use server's cipher preferences (only SSLv2)\n"); 384 BIO_printf(bio_err, 385 " -cipher - preferred cipher to use, use the 'openssl ciphers'\n"); 386 BIO_printf(bio_err, 387 " command to see what is available\n"); 388 BIO_printf(bio_err, 389 " -starttls prot - use the STARTTLS command before starting TLS\n"); 390 BIO_printf(bio_err, 391 " for those protocols that support it, where\n"); 392 BIO_printf(bio_err, 393 " 'prot' defines which one to assume. Currently,\n"); 394 BIO_printf(bio_err, 395 " only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n"); 396 BIO_printf(bio_err, " are supported.\n"); 397#ifndef OPENSSL_NO_ENGINE 398 BIO_printf(bio_err, 399 " -engine id - Initialise and use the specified engine\n"); 400#endif 401 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, 402 LIST_SEPARATOR_CHAR); 403 BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n"); 404 BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n"); 405#ifndef OPENSSL_NO_TLSEXT 406 BIO_printf(bio_err, 407 " -servername host - Set TLS extension servername in ClientHello\n"); 408 BIO_printf(bio_err, 409 " -tlsextdebug - hex dump of all TLS extensions received\n"); 410 BIO_printf(bio_err, 411 " -status - request certificate status from server\n"); 412 BIO_printf(bio_err, 413 " -no_ticket - disable use of RFC4507bis session tickets\n"); 414# ifndef OPENSSL_NO_NEXTPROTONEG 415 BIO_printf(bio_err, 416 " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n"); 417# endif 418#endif 419 BIO_printf(bio_err, 420 " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n"); 421#ifndef OPENSSL_NO_SRTP 422 BIO_printf(bio_err, 423 " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 424#endif 425 BIO_printf(bio_err, 426 " -keymatexport label - Export keying material using label\n"); 427 BIO_printf(bio_err, 428 " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 429} 430 431#ifndef OPENSSL_NO_TLSEXT 432 433/* This is a context that we pass to callbacks */ 434typedef struct tlsextctx_st { 435 BIO *biodebug; 436 int ack; 437} tlsextctx; 438 439static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg) 440{ 441 tlsextctx *p = (tlsextctx *) arg; 442 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 443 if (SSL_get_servername_type(s) != -1) 444 p->ack = !SSL_session_reused(s) && hn != NULL; 445 else 446 BIO_printf(bio_err, "Can't use SSL_get_servername\n"); 447 448 return SSL_TLSEXT_ERR_OK; 449} 450 451# ifndef OPENSSL_NO_SRP 452 453/* This is a context that we pass to all callbacks */ 454typedef struct srp_arg_st { 455 char *srppassin; 456 char *srplogin; 457 int msg; /* copy from c_msg */ 458 int debug; /* copy from c_debug */ 459 int amp; /* allow more groups */ 460 int strength /* minimal size for N */ ; 461} SRP_ARG; 462 463# define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 464 465static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g) 466{ 467 BN_CTX *bn_ctx = BN_CTX_new(); 468 BIGNUM *p = BN_new(); 469 BIGNUM *r = BN_new(); 470 int ret = 471 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && 472 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 473 p != NULL && BN_rshift1(p, N) && 474 /* p = (N-1)/2 */ 475 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 476 r != NULL && 477 /* verify g^((N-1)/2) == -1 (mod N) */ 478 BN_mod_exp(r, g, p, N, bn_ctx) && 479 BN_add_word(r, 1) && BN_cmp(r, N) == 0; 480 481 if (r) 482 BN_free(r); 483 if (p) 484 BN_free(p); 485 if (bn_ctx) 486 BN_CTX_free(bn_ctx); 487 return ret; 488} 489 490/*- 491 * This callback is used here for two purposes: 492 * - extended debugging 493 * - making some primality tests for unknown groups 494 * The callback is only called for a non default group. 495 * 496 * An application does not need the call back at all if 497 * only the stanard groups are used. In real life situations, 498 * client and server already share well known groups, 499 * thus there is no need to verify them. 500 * Furthermore, in case that a server actually proposes a group that 501 * is not one of those defined in RFC 5054, it is more appropriate 502 * to add the group to a static list and then compare since 503 * primality tests are rather cpu consuming. 504 */ 505 506static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg) 507{ 508 SRP_ARG *srp_arg = (SRP_ARG *)arg; 509 BIGNUM *N = NULL, *g = NULL; 510 if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s))) 511 return 0; 512 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) { 513 BIO_printf(bio_err, "SRP parameters:\n"); 514 BIO_printf(bio_err, "\tN="); 515 BN_print(bio_err, N); 516 BIO_printf(bio_err, "\n\tg="); 517 BN_print(bio_err, g); 518 BIO_printf(bio_err, "\n"); 519 } 520 521 if (SRP_check_known_gN_param(g, N)) 522 return 1; 523 524 if (srp_arg->amp == 1) { 525 if (srp_arg->debug) 526 BIO_printf(bio_err, 527 "SRP param N and g are not known params, going to check deeper.\n"); 528 529 /* 530 * The srp_moregroups is a real debugging feature. Implementors 531 * should rather add the value to the known ones. The minimal size 532 * has already been tested. 533 */ 534 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g)) 535 return 1; 536 } 537 BIO_printf(bio_err, "SRP param N and g rejected.\n"); 538 return 0; 539} 540 541# define PWD_STRLEN 1024 542 543static char *MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg) 544{ 545 SRP_ARG *srp_arg = (SRP_ARG *)arg; 546 char *pass = (char *)OPENSSL_malloc(PWD_STRLEN + 1); 547 PW_CB_DATA cb_tmp; 548 int l; 549 550 if(!pass) { 551 BIO_printf(bio_err, "Malloc failure\n"); 552 return NULL; 553 } 554 555 cb_tmp.password = (char *)srp_arg->srppassin; 556 cb_tmp.prompt_info = "SRP user"; 557 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) { 558 BIO_printf(bio_err, "Can't read Password\n"); 559 OPENSSL_free(pass); 560 return NULL; 561 } 562 *(pass + l) = '\0'; 563 564 return pass; 565} 566 567# endif 568# ifndef OPENSSL_NO_SRTP 569char *srtp_profiles = NULL; 570# endif 571 572# ifndef OPENSSL_NO_NEXTPROTONEG 573/* This the context that we pass to next_proto_cb */ 574typedef struct tlsextnextprotoctx_st { 575 unsigned char *data; 576 unsigned short len; 577 int status; 578} tlsextnextprotoctx; 579 580static tlsextnextprotoctx next_proto; 581 582static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, 583 const unsigned char *in, unsigned int inlen, 584 void *arg) 585{ 586 tlsextnextprotoctx *ctx = arg; 587 588 if (!c_quiet) { 589 /* We can assume that |in| is syntactically valid. */ 590 unsigned i; 591 BIO_printf(bio_c_out, "Protocols advertised by server: "); 592 for (i = 0; i < inlen;) { 593 if (i) 594 BIO_write(bio_c_out, ", ", 2); 595 BIO_write(bio_c_out, &in[i + 1], in[i]); 596 i += in[i] + 1; 597 } 598 BIO_write(bio_c_out, "\n", 1); 599 } 600 601 ctx->status = 602 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); 603 return SSL_TLSEXT_ERR_OK; 604} 605# endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 606#endif 607 608enum { 609 PROTO_OFF = 0, 610 PROTO_SMTP, 611 PROTO_POP3, 612 PROTO_IMAP, 613 PROTO_FTP, 614 PROTO_XMPP 615}; 616 617int MAIN(int, char **); 618 619int MAIN(int argc, char **argv) 620{ 621 unsigned int off = 0, clr = 0; 622 SSL *con = NULL; 623#ifndef OPENSSL_NO_KRB5 624 KSSL_CTX *kctx; 625#endif 626 int s, k, width, state = 0; 627 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL; 628 int cbuf_len, cbuf_off; 629 int sbuf_len, sbuf_off; 630 fd_set readfds, writefds; 631 short port = PORT; 632 int full_log = 1; 633 char *host = SSL_HOST_NAME; 634 char *cert_file = NULL, *key_file = NULL; 635 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 636 char *passarg = NULL, *pass = NULL; 637 X509 *cert = NULL; 638 EVP_PKEY *key = NULL; 639 char *CApath = NULL, *CAfile = NULL, *cipher = NULL; 640 int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0; 641 int crlf = 0; 642 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; 643 SSL_CTX *ctx = NULL; 644 int ret = 1, in_init = 1, i, nbio_test = 0; 645 int starttls_proto = PROTO_OFF; 646 int prexit = 0; 647 X509_VERIFY_PARAM *vpm = NULL; 648 int badarg = 0; 649 const SSL_METHOD *meth = NULL; 650 int socket_type = SOCK_STREAM; 651 BIO *sbio; 652 char *inrand = NULL; 653 int mbuf_len = 0; 654 struct timeval timeout, *timeoutp; 655#ifndef OPENSSL_NO_ENGINE 656 char *engine_id = NULL; 657 char *ssl_client_engine_id = NULL; 658 ENGINE *ssl_client_engine = NULL; 659#endif 660 ENGINE *e = NULL; 661#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 662 struct timeval tv; 663# if defined(OPENSSL_SYS_BEOS_R5) 664 int stdin_set = 0; 665# endif 666#endif 667#ifndef OPENSSL_NO_TLSEXT 668 char *servername = NULL; 669 tlsextctx tlsextcbp = { NULL, 0 }; 670# ifndef OPENSSL_NO_NEXTPROTONEG 671 const char *next_proto_neg_in = NULL; 672# endif 673#endif 674 char *sess_in = NULL; 675 char *sess_out = NULL; 676 struct sockaddr peer; 677 int peerlen = sizeof(peer); 678 int fallback_scsv = 0; 679 int enable_timeouts = 0; 680 long socket_mtu = 0; 681#ifndef OPENSSL_NO_JPAKE 682 char *jpake_secret = NULL; 683#endif 684#ifndef OPENSSL_NO_SRP 685 char *srppass = NULL; 686 int srp_lateuser = 0; 687 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; 688#endif 689 690 meth = SSLv23_client_method(); 691 692 apps_startup(); 693 c_Pause = 0; 694 c_quiet = 0; 695 c_ign_eof = 0; 696 c_debug = 0; 697 c_msg = 0; 698 c_showcerts = 0; 699 700 if (bio_err == NULL) 701 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 702 703 if (!load_config(bio_err, NULL)) 704 goto end; 705 706 if (((cbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 707 ((sbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 708 ((mbuf = OPENSSL_malloc(BUFSIZZ)) == NULL)) { 709 BIO_printf(bio_err, "out of memory\n"); 710 goto end; 711 } 712 713 verify_depth = 0; 714 verify_error = X509_V_OK; 715#ifdef FIONBIO 716 c_nbio = 0; 717#endif 718 719 argc--; 720 argv++; 721 while (argc >= 1) { 722 if (strcmp(*argv, "-host") == 0) { 723 if (--argc < 1) 724 goto bad; 725 host = *(++argv); 726 } else if (strcmp(*argv, "-port") == 0) { 727 if (--argc < 1) 728 goto bad; 729 port = atoi(*(++argv)); 730 if (port == 0) 731 goto bad; 732 } else if (strcmp(*argv, "-connect") == 0) { 733 if (--argc < 1) 734 goto bad; 735 if (!extract_host_port(*(++argv), &host, NULL, &port)) 736 goto bad; 737 } else if (strcmp(*argv, "-verify") == 0) { 738 verify = SSL_VERIFY_PEER; 739 if (--argc < 1) 740 goto bad; 741 verify_depth = atoi(*(++argv)); 742 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 743 } else if (strcmp(*argv, "-cert") == 0) { 744 if (--argc < 1) 745 goto bad; 746 cert_file = *(++argv); 747 } else if (strcmp(*argv, "-sess_out") == 0) { 748 if (--argc < 1) 749 goto bad; 750 sess_out = *(++argv); 751 } else if (strcmp(*argv, "-sess_in") == 0) { 752 if (--argc < 1) 753 goto bad; 754 sess_in = *(++argv); 755 } else if (strcmp(*argv, "-certform") == 0) { 756 if (--argc < 1) 757 goto bad; 758 cert_format = str2fmt(*(++argv)); 759 } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 760 if (badarg) 761 goto bad; 762 continue; 763 } else if (strcmp(*argv, "-verify_return_error") == 0) 764 verify_return_error = 1; 765 else if (strcmp(*argv, "-prexit") == 0) 766 prexit = 1; 767 else if (strcmp(*argv, "-crlf") == 0) 768 crlf = 1; 769 else if (strcmp(*argv, "-quiet") == 0) { 770 c_quiet = 1; 771 c_ign_eof = 1; 772 } else if (strcmp(*argv, "-ign_eof") == 0) 773 c_ign_eof = 1; 774 else if (strcmp(*argv, "-no_ign_eof") == 0) 775 c_ign_eof = 0; 776 else if (strcmp(*argv, "-pause") == 0) 777 c_Pause = 1; 778 else if (strcmp(*argv, "-debug") == 0) 779 c_debug = 1; 780#ifndef OPENSSL_NO_TLSEXT 781 else if (strcmp(*argv, "-tlsextdebug") == 0) 782 c_tlsextdebug = 1; 783 else if (strcmp(*argv, "-status") == 0) 784 c_status_req = 1; 785#endif 786#ifdef WATT32 787 else if (strcmp(*argv, "-wdebug") == 0) 788 dbug_init(); 789#endif 790 else if (strcmp(*argv, "-msg") == 0) 791 c_msg = 1; 792 else if (strcmp(*argv, "-showcerts") == 0) 793 c_showcerts = 1; 794 else if (strcmp(*argv, "-nbio_test") == 0) 795 nbio_test = 1; 796 else if (strcmp(*argv, "-state") == 0) 797 state = 1; 798#ifndef OPENSSL_NO_PSK 799 else if (strcmp(*argv, "-psk_identity") == 0) { 800 if (--argc < 1) 801 goto bad; 802 psk_identity = *(++argv); 803 } else if (strcmp(*argv, "-psk") == 0) { 804 size_t j; 805 806 if (--argc < 1) 807 goto bad; 808 psk_key = *(++argv); 809 for (j = 0; j < strlen(psk_key); j++) { 810 if (isxdigit((unsigned char)psk_key[j])) 811 continue; 812 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv); 813 goto bad; 814 } 815 } 816#endif 817#ifndef OPENSSL_NO_SRP 818 else if (strcmp(*argv, "-srpuser") == 0) { 819 if (--argc < 1) 820 goto bad; 821 srp_arg.srplogin = *(++argv); 822 meth = TLSv1_client_method(); 823 } else if (strcmp(*argv, "-srppass") == 0) { 824 if (--argc < 1) 825 goto bad; 826 srppass = *(++argv); 827 meth = TLSv1_client_method(); 828 } else if (strcmp(*argv, "-srp_strength") == 0) { 829 if (--argc < 1) 830 goto bad; 831 srp_arg.strength = atoi(*(++argv)); 832 BIO_printf(bio_err, "SRP minimal length for N is %d\n", 833 srp_arg.strength); 834 meth = TLSv1_client_method(); 835 } else if (strcmp(*argv, "-srp_lateuser") == 0) { 836 srp_lateuser = 1; 837 meth = TLSv1_client_method(); 838 } else if (strcmp(*argv, "-srp_moregroups") == 0) { 839 srp_arg.amp = 1; 840 meth = TLSv1_client_method(); 841 } 842#endif 843#ifndef OPENSSL_NO_SSL2 844 else if (strcmp(*argv, "-ssl2") == 0) 845 meth = SSLv2_client_method(); 846#endif 847#ifndef OPENSSL_NO_SSL3_METHOD 848 else if (strcmp(*argv, "-ssl3") == 0) 849 meth = SSLv3_client_method(); 850#endif 851#ifndef OPENSSL_NO_TLS1 852 else if (strcmp(*argv, "-tls1_2") == 0) 853 meth = TLSv1_2_client_method(); 854 else if (strcmp(*argv, "-tls1_1") == 0) 855 meth = TLSv1_1_client_method(); 856 else if (strcmp(*argv, "-tls1") == 0) 857 meth = TLSv1_client_method(); 858#endif 859#ifndef OPENSSL_NO_DTLS1 860 else if (strcmp(*argv, "-dtls1") == 0) { 861 meth = DTLSv1_client_method(); 862 socket_type = SOCK_DGRAM; 863 } else if (strcmp(*argv, "-fallback_scsv") == 0) { 864 fallback_scsv = 1; 865 } else if (strcmp(*argv, "-timeout") == 0) 866 enable_timeouts = 1; 867 else if (strcmp(*argv, "-mtu") == 0) { 868 if (--argc < 1) 869 goto bad; 870 socket_mtu = atol(*(++argv)); 871 } 872#endif 873 else if (strcmp(*argv, "-bugs") == 0) 874 bugs = 1; 875 else if (strcmp(*argv, "-keyform") == 0) { 876 if (--argc < 1) 877 goto bad; 878 key_format = str2fmt(*(++argv)); 879 } else if (strcmp(*argv, "-pass") == 0) { 880 if (--argc < 1) 881 goto bad; 882 passarg = *(++argv); 883 } else if (strcmp(*argv, "-key") == 0) { 884 if (--argc < 1) 885 goto bad; 886 key_file = *(++argv); 887 } else if (strcmp(*argv, "-reconnect") == 0) { 888 reconnect = 5; 889 } else if (strcmp(*argv, "-CApath") == 0) { 890 if (--argc < 1) 891 goto bad; 892 CApath = *(++argv); 893 } else if (strcmp(*argv, "-CAfile") == 0) { 894 if (--argc < 1) 895 goto bad; 896 CAfile = *(++argv); 897 } else if (strcmp(*argv, "-no_tls1_2") == 0) 898 off |= SSL_OP_NO_TLSv1_2; 899 else if (strcmp(*argv, "-no_tls1_1") == 0) 900 off |= SSL_OP_NO_TLSv1_1; 901 else if (strcmp(*argv, "-no_tls1") == 0) 902 off |= SSL_OP_NO_TLSv1; 903 else if (strcmp(*argv, "-no_ssl3") == 0) 904 off |= SSL_OP_NO_SSLv3; 905 else if (strcmp(*argv, "-no_ssl2") == 0) 906 off |= SSL_OP_NO_SSLv2; 907 else if (strcmp(*argv, "-no_comp") == 0) { 908 off |= SSL_OP_NO_COMPRESSION; 909 } 910#ifndef OPENSSL_NO_TLSEXT 911 else if (strcmp(*argv, "-no_ticket") == 0) { 912 off |= SSL_OP_NO_TICKET; 913 } 914# ifndef OPENSSL_NO_NEXTPROTONEG 915 else if (strcmp(*argv, "-nextprotoneg") == 0) { 916 if (--argc < 1) 917 goto bad; 918 next_proto_neg_in = *(++argv); 919 } 920# endif 921#endif 922 else if (strcmp(*argv, "-serverpref") == 0) 923 off |= SSL_OP_CIPHER_SERVER_PREFERENCE; 924 else if (strcmp(*argv, "-legacy_renegotiation") == 0) 925 off |= SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION; 926 else if (strcmp(*argv, "-legacy_server_connect") == 0) { 927 off |= SSL_OP_LEGACY_SERVER_CONNECT; 928 } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) { 929 clr |= SSL_OP_LEGACY_SERVER_CONNECT; 930 } else if (strcmp(*argv, "-cipher") == 0) { 931 if (--argc < 1) 932 goto bad; 933 cipher = *(++argv); 934 } 935#ifdef FIONBIO 936 else if (strcmp(*argv, "-nbio") == 0) { 937 c_nbio = 1; 938 } 939#endif 940 else if (strcmp(*argv, "-starttls") == 0) { 941 if (--argc < 1) 942 goto bad; 943 ++argv; 944 if (strcmp(*argv, "smtp") == 0) 945 starttls_proto = PROTO_SMTP; 946 else if (strcmp(*argv, "pop3") == 0) 947 starttls_proto = PROTO_POP3; 948 else if (strcmp(*argv, "imap") == 0) 949 starttls_proto = PROTO_IMAP; 950 else if (strcmp(*argv, "ftp") == 0) 951 starttls_proto = PROTO_FTP; 952 else if (strcmp(*argv, "xmpp") == 0) 953 starttls_proto = PROTO_XMPP; 954 else 955 goto bad; 956 } 957#ifndef OPENSSL_NO_ENGINE 958 else if (strcmp(*argv, "-engine") == 0) { 959 if (--argc < 1) 960 goto bad; 961 engine_id = *(++argv); 962 } else if (strcmp(*argv, "-ssl_client_engine") == 0) { 963 if (--argc < 1) 964 goto bad; 965 ssl_client_engine_id = *(++argv); 966 } 967#endif 968 else if (strcmp(*argv, "-rand") == 0) { 969 if (--argc < 1) 970 goto bad; 971 inrand = *(++argv); 972 } 973#ifndef OPENSSL_NO_TLSEXT 974 else if (strcmp(*argv, "-servername") == 0) { 975 if (--argc < 1) 976 goto bad; 977 servername = *(++argv); 978 /* meth=TLSv1_client_method(); */ 979 } 980#endif 981#ifndef OPENSSL_NO_JPAKE 982 else if (strcmp(*argv, "-jpake") == 0) { 983 if (--argc < 1) 984 goto bad; 985 jpake_secret = *++argv; 986 } 987#endif 988#ifndef OPENSSL_NO_SRTP 989 else if (strcmp(*argv, "-use_srtp") == 0) { 990 if (--argc < 1) 991 goto bad; 992 srtp_profiles = *(++argv); 993 } 994#endif 995 else if (strcmp(*argv, "-keymatexport") == 0) { 996 if (--argc < 1) 997 goto bad; 998 keymatexportlabel = *(++argv); 999 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 1000 if (--argc < 1) 1001 goto bad; 1002 keymatexportlen = atoi(*(++argv)); 1003 if (keymatexportlen == 0) 1004 goto bad; 1005 } else { 1006 BIO_printf(bio_err, "unknown option %s\n", *argv); 1007 badop = 1; 1008 break; 1009 } 1010 argc--; 1011 argv++; 1012 } 1013 if (badop) { 1014 bad: 1015 sc_usage(); 1016 goto end; 1017 } 1018#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK) 1019 if (jpake_secret) { 1020 if (psk_key) { 1021 BIO_printf(bio_err, "Can't use JPAKE and PSK together\n"); 1022 goto end; 1023 } 1024 psk_identity = "JPAKE"; 1025 if (cipher) { 1026 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n"); 1027 goto end; 1028 } 1029 cipher = "PSK"; 1030 } 1031#endif 1032 1033 OpenSSL_add_ssl_algorithms(); 1034 SSL_load_error_strings(); 1035 1036#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1037 next_proto.status = -1; 1038 if (next_proto_neg_in) { 1039 next_proto.data = 1040 next_protos_parse(&next_proto.len, next_proto_neg_in); 1041 if (next_proto.data == NULL) { 1042 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1043 goto end; 1044 } 1045 } else 1046 next_proto.data = NULL; 1047#endif 1048 1049#ifndef OPENSSL_NO_ENGINE 1050 e = setup_engine(bio_err, engine_id, 1); 1051 if (ssl_client_engine_id) { 1052 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id); 1053 if (!ssl_client_engine) { 1054 BIO_printf(bio_err, "Error getting client auth engine\n"); 1055 goto end; 1056 } 1057 } 1058#endif 1059 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { 1060 BIO_printf(bio_err, "Error getting password\n"); 1061 goto end; 1062 } 1063 1064 if (key_file == NULL) 1065 key_file = cert_file; 1066 1067 if (key_file) { 1068 1069 key = load_key(bio_err, key_file, key_format, 0, pass, e, 1070 "client certificate private key file"); 1071 if (!key) { 1072 ERR_print_errors(bio_err); 1073 goto end; 1074 } 1075 1076 } 1077 1078 if (cert_file) { 1079 cert = load_cert(bio_err, cert_file, cert_format, 1080 NULL, e, "client certificate file"); 1081 1082 if (!cert) { 1083 ERR_print_errors(bio_err); 1084 goto end; 1085 } 1086 } 1087 1088 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 1089 && !RAND_status()) { 1090 BIO_printf(bio_err, 1091 "warning, not much extra random data, consider using the -rand option\n"); 1092 } 1093 if (inrand != NULL) 1094 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 1095 app_RAND_load_files(inrand)); 1096 1097 if (bio_c_out == NULL) { 1098 if (c_quiet && !c_debug && !c_msg) { 1099 bio_c_out = BIO_new(BIO_s_null()); 1100 } else { 1101 if (bio_c_out == NULL) 1102 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE); 1103 } 1104 } 1105#ifndef OPENSSL_NO_SRP 1106 if (!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL)) { 1107 BIO_printf(bio_err, "Error getting password\n"); 1108 goto end; 1109 } 1110#endif 1111 1112 ctx = SSL_CTX_new(meth); 1113 if (ctx == NULL) { 1114 ERR_print_errors(bio_err); 1115 goto end; 1116 } 1117 1118 if (vpm) 1119 SSL_CTX_set1_param(ctx, vpm); 1120 1121#ifndef OPENSSL_NO_ENGINE 1122 if (ssl_client_engine) { 1123 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { 1124 BIO_puts(bio_err, "Error setting client auth engine\n"); 1125 ERR_print_errors(bio_err); 1126 ENGINE_free(ssl_client_engine); 1127 goto end; 1128 } 1129 ENGINE_free(ssl_client_engine); 1130 } 1131#endif 1132 1133#ifndef OPENSSL_NO_PSK 1134# ifdef OPENSSL_NO_JPAKE 1135 if (psk_key != NULL) 1136# else 1137 if (psk_key != NULL || jpake_secret) 1138# endif 1139 { 1140 if (c_debug) 1141 BIO_printf(bio_c_out, 1142 "PSK key given or JPAKE in use, setting client callback\n"); 1143 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1144 } 1145#endif 1146#ifndef OPENSSL_NO_SRTP 1147 if (srtp_profiles != NULL) 1148 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 1149#endif 1150 if (bugs) 1151 SSL_CTX_set_options(ctx, SSL_OP_ALL | off); 1152 else 1153 SSL_CTX_set_options(ctx, off); 1154 1155 if (clr) 1156 SSL_CTX_clear_options(ctx, clr); 1157 1158#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1159 if (next_proto.data) 1160 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1161#endif 1162 1163 if (state) 1164 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1165 if (cipher != NULL) 1166 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 1167 BIO_printf(bio_err, "error setting cipher list\n"); 1168 ERR_print_errors(bio_err); 1169 goto end; 1170 } 1171#if 0 1172 else 1173 SSL_CTX_set_cipher_list(ctx, getenv("SSL_CIPHER")); 1174#endif 1175 1176 SSL_CTX_set_verify(ctx, verify, verify_callback); 1177 if (!set_cert_key_stuff(ctx, cert, key)) 1178 goto end; 1179 1180 if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) || 1181 (!SSL_CTX_set_default_verify_paths(ctx))) { 1182 /* 1183 * BIO_printf(bio_err,"error setting default verify locations\n"); 1184 */ 1185 ERR_print_errors(bio_err); 1186 /* goto end; */ 1187 } 1188#ifndef OPENSSL_NO_TLSEXT 1189 if (servername != NULL) { 1190 tlsextcbp.biodebug = bio_err; 1191 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1192 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1193 } 1194# ifndef OPENSSL_NO_SRP 1195 if (srp_arg.srplogin) { 1196 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { 1197 BIO_printf(bio_err, "Unable to set SRP username\n"); 1198 goto end; 1199 } 1200 srp_arg.msg = c_msg; 1201 srp_arg.debug = c_debug; 1202 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); 1203 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1204 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1205 if (c_msg || c_debug || srp_arg.amp == 0) 1206 SSL_CTX_set_srp_verify_param_callback(ctx, 1207 ssl_srp_verify_param_cb); 1208 } 1209# endif 1210#endif 1211 1212 con = SSL_new(ctx); 1213 if (sess_in) { 1214 SSL_SESSION *sess; 1215 BIO *stmp = BIO_new_file(sess_in, "r"); 1216 if (!stmp) { 1217 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1218 ERR_print_errors(bio_err); 1219 goto end; 1220 } 1221 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1222 BIO_free(stmp); 1223 if (!sess) { 1224 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1225 ERR_print_errors(bio_err); 1226 goto end; 1227 } 1228 SSL_set_session(con, sess); 1229 SSL_SESSION_free(sess); 1230 } 1231 1232 if (fallback_scsv) 1233 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 1234 1235#ifndef OPENSSL_NO_TLSEXT 1236 if (servername != NULL) { 1237 if (!SSL_set_tlsext_host_name(con, servername)) { 1238 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 1239 ERR_print_errors(bio_err); 1240 goto end; 1241 } 1242 } 1243#endif 1244#ifndef OPENSSL_NO_KRB5 1245 if (con && (kctx = kssl_ctx_new()) != NULL) { 1246 SSL_set0_kssl_ctx(con, kctx); 1247 kssl_ctx_setstring(kctx, KSSL_SERVER, host); 1248 } 1249#endif /* OPENSSL_NO_KRB5 */ 1250/* SSL_set_cipher_list(con,"RC4-MD5"); */ 1251#if 0 1252# ifdef TLSEXT_TYPE_opaque_prf_input 1253 SSL_set_tlsext_opaque_prf_input(con, "Test client", 11); 1254# endif 1255#endif 1256 1257 re_start: 1258 1259 if (init_client(&s, host, port, socket_type) == 0) { 1260 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); 1261 SHUTDOWN(s); 1262 goto end; 1263 } 1264 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 1265 1266#ifdef FIONBIO 1267 if (c_nbio) { 1268 unsigned long l = 1; 1269 BIO_printf(bio_c_out, "turning on non blocking io\n"); 1270 if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) { 1271 ERR_print_errors(bio_err); 1272 goto end; 1273 } 1274 } 1275#endif 1276 if (c_Pause & 0x01) 1277 SSL_set_debug(con, 1); 1278 1279 if (SSL_version(con) == DTLS1_VERSION) { 1280 1281 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1282 if (getsockname(s, &peer, (void *)&peerlen) < 0) { 1283 BIO_printf(bio_err, "getsockname:errno=%d\n", 1284 get_last_socket_error()); 1285 SHUTDOWN(s); 1286 goto end; 1287 } 1288 1289 (void)BIO_ctrl_set_connected(sbio, 1, &peer); 1290 1291 if (enable_timeouts) { 1292 timeout.tv_sec = 0; 1293 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1294 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1295 1296 timeout.tv_sec = 0; 1297 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1298 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1299 } 1300 1301 if (socket_mtu) { 1302 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 1303 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 1304 DTLS_get_link_min_mtu(con)); 1305 BIO_free(sbio); 1306 goto shut; 1307 } 1308 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1309 if (!DTLS_set_link_mtu(con, socket_mtu)) { 1310 BIO_printf(bio_err, "Failed to set MTU\n"); 1311 BIO_free(sbio); 1312 goto shut; 1313 } 1314 } else 1315 /* want to do MTU discovery */ 1316 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1317 } else 1318 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1319 1320 if (nbio_test) { 1321 BIO *test; 1322 1323 test = BIO_new(BIO_f_nbio_test()); 1324 sbio = BIO_push(test, sbio); 1325 } 1326 1327 if (c_debug) { 1328 SSL_set_debug(con, 1); 1329 BIO_set_callback(sbio, bio_dump_callback); 1330 BIO_set_callback_arg(sbio, (char *)bio_c_out); 1331 } 1332 if (c_msg) { 1333 SSL_set_msg_callback(con, msg_cb); 1334 SSL_set_msg_callback_arg(con, bio_c_out); 1335 } 1336#ifndef OPENSSL_NO_TLSEXT 1337 if (c_tlsextdebug) { 1338 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1339 SSL_set_tlsext_debug_arg(con, bio_c_out); 1340 } 1341 if (c_status_req) { 1342 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 1343 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 1344 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 1345# if 0 1346 { 1347 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null(); 1348 OCSP_RESPID *id = OCSP_RESPID_new(); 1349 id->value.byKey = ASN1_OCTET_STRING_new(); 1350 id->type = V_OCSP_RESPID_KEY; 1351 ASN1_STRING_set(id->value.byKey, "Hello World", -1); 1352 sk_OCSP_RESPID_push(ids, id); 1353 SSL_set_tlsext_status_ids(con, ids); 1354 } 1355# endif 1356 } 1357#endif 1358#ifndef OPENSSL_NO_JPAKE 1359 if (jpake_secret) 1360 jpake_client_auth(bio_c_out, sbio, jpake_secret); 1361#endif 1362 1363 SSL_set_bio(con, sbio, sbio); 1364 SSL_set_connect_state(con); 1365 1366 /* ok, lets connect */ 1367 width = SSL_get_fd(con) + 1; 1368 1369 read_tty = 1; 1370 write_tty = 0; 1371 tty_on = 0; 1372 read_ssl = 1; 1373 write_ssl = 1; 1374 1375 cbuf_len = 0; 1376 cbuf_off = 0; 1377 sbuf_len = 0; 1378 sbuf_off = 0; 1379 1380 /* This is an ugly hack that does a lot of assumptions */ 1381 /* 1382 * We do have to handle multi-line responses which may come in a single 1383 * packet or not. We therefore have to use BIO_gets() which does need a 1384 * buffering BIO. So during the initial chitchat we do push a buffering 1385 * BIO into the chain that is removed again later on to not disturb the 1386 * rest of the s_client operation. 1387 */ 1388 if (starttls_proto == PROTO_SMTP) { 1389 int foundit = 0; 1390 BIO *fbio = BIO_new(BIO_f_buffer()); 1391 BIO_push(fbio, sbio); 1392 /* wait for multi-line response to end from SMTP */ 1393 do { 1394 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1395 } 1396 while (mbuf_len > 3 && mbuf[3] == '-'); 1397 /* STARTTLS command requires EHLO... */ 1398 BIO_printf(fbio, "EHLO openssl.client.net\r\n"); 1399 (void)BIO_flush(fbio); 1400 /* wait for multi-line response to end EHLO SMTP response */ 1401 do { 1402 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1403 if (strstr(mbuf, "STARTTLS")) 1404 foundit = 1; 1405 } 1406 while (mbuf_len > 3 && mbuf[3] == '-'); 1407 (void)BIO_flush(fbio); 1408 BIO_pop(fbio); 1409 BIO_free(fbio); 1410 if (!foundit) 1411 BIO_printf(bio_err, 1412 "didn't found starttls in server response," 1413 " try anyway...\n"); 1414 BIO_printf(sbio, "STARTTLS\r\n"); 1415 BIO_read(sbio, sbuf, BUFSIZZ); 1416 } else if (starttls_proto == PROTO_POP3) { 1417 BIO_read(sbio, mbuf, BUFSIZZ); 1418 BIO_printf(sbio, "STLS\r\n"); 1419 BIO_read(sbio, sbuf, BUFSIZZ); 1420 } else if (starttls_proto == PROTO_IMAP) { 1421 int foundit = 0; 1422 BIO *fbio = BIO_new(BIO_f_buffer()); 1423 BIO_push(fbio, sbio); 1424 BIO_gets(fbio, mbuf, BUFSIZZ); 1425 /* STARTTLS command requires CAPABILITY... */ 1426 BIO_printf(fbio, ". CAPABILITY\r\n"); 1427 (void)BIO_flush(fbio); 1428 /* wait for multi-line CAPABILITY response */ 1429 do { 1430 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1431 if (strstr(mbuf, "STARTTLS")) 1432 foundit = 1; 1433 } 1434 while (mbuf_len > 3 && mbuf[0] != '.'); 1435 (void)BIO_flush(fbio); 1436 BIO_pop(fbio); 1437 BIO_free(fbio); 1438 if (!foundit) 1439 BIO_printf(bio_err, 1440 "didn't found STARTTLS in server response," 1441 " try anyway...\n"); 1442 BIO_printf(sbio, ". STARTTLS\r\n"); 1443 BIO_read(sbio, sbuf, BUFSIZZ); 1444 } else if (starttls_proto == PROTO_FTP) { 1445 BIO *fbio = BIO_new(BIO_f_buffer()); 1446 BIO_push(fbio, sbio); 1447 /* wait for multi-line response to end from FTP */ 1448 do { 1449 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1450 } 1451 while (mbuf_len > 3 && mbuf[3] == '-'); 1452 (void)BIO_flush(fbio); 1453 BIO_pop(fbio); 1454 BIO_free(fbio); 1455 BIO_printf(sbio, "AUTH TLS\r\n"); 1456 BIO_read(sbio, sbuf, BUFSIZZ); 1457 } 1458 if (starttls_proto == PROTO_XMPP) { 1459 int seen = 0; 1460 BIO_printf(sbio, "<stream:stream " 1461 "xmlns:stream='http://etherx.jabber.org/streams' " 1462 "xmlns='jabber:client' to='%s' version='1.0'>", host); 1463 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1464 mbuf[seen] = 0; 1465 while (!strstr 1466 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) { 1467 if (strstr(mbuf, "/stream:features>")) 1468 goto shut; 1469 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1470 mbuf[seen] = 0; 1471 } 1472 BIO_printf(sbio, 1473 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 1474 seen = BIO_read(sbio, sbuf, BUFSIZZ); 1475 sbuf[seen] = 0; 1476 if (!strstr(sbuf, "<proceed")) 1477 goto shut; 1478 mbuf[0] = 0; 1479 } 1480 1481 for (;;) { 1482 FD_ZERO(&readfds); 1483 FD_ZERO(&writefds); 1484 1485 if ((SSL_version(con) == DTLS1_VERSION) && 1486 DTLSv1_get_timeout(con, &timeout)) 1487 timeoutp = &timeout; 1488 else 1489 timeoutp = NULL; 1490 1491 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { 1492 in_init = 1; 1493 tty_on = 0; 1494 } else { 1495 tty_on = 1; 1496 if (in_init) { 1497 in_init = 0; 1498#if 0 /* This test doesn't really work as intended 1499 * (needs to be fixed) */ 1500# ifndef OPENSSL_NO_TLSEXT 1501 if (servername != NULL && !SSL_session_reused(con)) { 1502 BIO_printf(bio_c_out, 1503 "Server did %sacknowledge servername extension.\n", 1504 tlsextcbp.ack ? "" : "not "); 1505 } 1506# endif 1507#endif 1508 if (sess_out) { 1509 BIO *stmp = BIO_new_file(sess_out, "w"); 1510 if (stmp) { 1511 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 1512 BIO_free(stmp); 1513 } else 1514 BIO_printf(bio_err, "Error writing session file %s\n", 1515 sess_out); 1516 } 1517 print_stuff(bio_c_out, con, full_log); 1518 if (full_log > 0) 1519 full_log--; 1520 1521 if (starttls_proto) { 1522 BIO_printf(bio_err, "%s", mbuf); 1523 /* We don't need to know any more */ 1524 starttls_proto = PROTO_OFF; 1525 } 1526 1527 if (reconnect) { 1528 reconnect--; 1529 BIO_printf(bio_c_out, 1530 "drop connection and then reconnect\n"); 1531 SSL_shutdown(con); 1532 SSL_set_connect_state(con); 1533 SHUTDOWN(SSL_get_fd(con)); 1534 goto re_start; 1535 } 1536 } 1537 } 1538 1539 ssl_pending = read_ssl && SSL_pending(con); 1540 1541 if (!ssl_pending) { 1542#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5) 1543 if (tty_on) { 1544 if (read_tty) 1545 openssl_fdset(fileno(stdin), &readfds); 1546 if (write_tty) 1547 openssl_fdset(fileno(stdout), &writefds); 1548 } 1549 if (read_ssl) 1550 openssl_fdset(SSL_get_fd(con), &readfds); 1551 if (write_ssl) 1552 openssl_fdset(SSL_get_fd(con), &writefds); 1553#else 1554 if (!tty_on || !write_tty) { 1555 if (read_ssl) 1556 openssl_fdset(SSL_get_fd(con), &readfds); 1557 if (write_ssl) 1558 openssl_fdset(SSL_get_fd(con), &writefds); 1559 } 1560#endif 1561/*- printf("mode tty(%d %d%d) ssl(%d%d)\n", 1562 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1563 1564 /* 1565 * Note: under VMS with SOCKETSHR the second parameter is 1566 * currently of type (int *) whereas under other systems it is 1567 * (void *) if you don't have a cast it will choke the compiler: 1568 * if you do have a cast then you can either go for (int *) or 1569 * (void *). 1570 */ 1571#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1572 /* 1573 * Under Windows/DOS we make the assumption that we can always 1574 * write to the tty: therefore if we need to write to the tty we 1575 * just fall through. Otherwise we timeout the select every 1576 * second and see if there are any keypresses. Note: this is a 1577 * hack, in a proper Windows application we wouldn't do this. 1578 */ 1579 i = 0; 1580 if (!write_tty) { 1581 if (read_tty) { 1582 tv.tv_sec = 1; 1583 tv.tv_usec = 0; 1584 i = select(width, (void *)&readfds, (void *)&writefds, 1585 NULL, &tv); 1586# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1587 if (!i && (!_kbhit() || !read_tty)) 1588 continue; 1589# else 1590 if (!i && (!((_kbhit()) 1591 || (WAIT_OBJECT_0 == 1592 WaitForSingleObject(GetStdHandle 1593 (STD_INPUT_HANDLE), 1594 0))) 1595 || !read_tty)) 1596 continue; 1597# endif 1598 } else 1599 i = select(width, (void *)&readfds, (void *)&writefds, 1600 NULL, timeoutp); 1601 } 1602#elif defined(OPENSSL_SYS_NETWARE) 1603 if (!write_tty) { 1604 if (read_tty) { 1605 tv.tv_sec = 1; 1606 tv.tv_usec = 0; 1607 i = select(width, (void *)&readfds, (void *)&writefds, 1608 NULL, &tv); 1609 } else 1610 i = select(width, (void *)&readfds, (void *)&writefds, 1611 NULL, timeoutp); 1612 } 1613#elif defined(OPENSSL_SYS_BEOS_R5) 1614 /* Under BeOS-R5 the situation is similar to DOS */ 1615 i = 0; 1616 stdin_set = 0; 1617 (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK); 1618 if (!write_tty) { 1619 if (read_tty) { 1620 tv.tv_sec = 1; 1621 tv.tv_usec = 0; 1622 i = select(width, (void *)&readfds, (void *)&writefds, 1623 NULL, &tv); 1624 if (read(fileno(stdin), sbuf, 0) >= 0) 1625 stdin_set = 1; 1626 if (!i && (stdin_set != 1 || !read_tty)) 1627 continue; 1628 } else 1629 i = select(width, (void *)&readfds, (void *)&writefds, 1630 NULL, timeoutp); 1631 } 1632 (void)fcntl(fileno(stdin), F_SETFL, 0); 1633#else 1634 i = select(width, (void *)&readfds, (void *)&writefds, 1635 NULL, timeoutp); 1636#endif 1637 if (i < 0) { 1638 BIO_printf(bio_err, "bad select %d\n", 1639 get_last_socket_error()); 1640 goto shut; 1641 /* goto end; */ 1642 } 1643 } 1644 1645 if ((SSL_version(con) == DTLS1_VERSION) 1646 && DTLSv1_handle_timeout(con) > 0) { 1647 BIO_printf(bio_err, "TIMEOUT occured\n"); 1648 } 1649 1650 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { 1651 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); 1652 switch (SSL_get_error(con, k)) { 1653 case SSL_ERROR_NONE: 1654 cbuf_off += k; 1655 cbuf_len -= k; 1656 if (k <= 0) 1657 goto end; 1658 /* we have done a write(con,NULL,0); */ 1659 if (cbuf_len <= 0) { 1660 read_tty = 1; 1661 write_ssl = 0; 1662 } else { /* if (cbuf_len > 0) */ 1663 1664 read_tty = 0; 1665 write_ssl = 1; 1666 } 1667 break; 1668 case SSL_ERROR_WANT_WRITE: 1669 BIO_printf(bio_c_out, "write W BLOCK\n"); 1670 write_ssl = 1; 1671 read_tty = 0; 1672 break; 1673 case SSL_ERROR_WANT_READ: 1674 BIO_printf(bio_c_out, "write R BLOCK\n"); 1675 write_tty = 0; 1676 read_ssl = 1; 1677 write_ssl = 0; 1678 break; 1679 case SSL_ERROR_WANT_X509_LOOKUP: 1680 BIO_printf(bio_c_out, "write X BLOCK\n"); 1681 break; 1682 case SSL_ERROR_ZERO_RETURN: 1683 if (cbuf_len != 0) { 1684 BIO_printf(bio_c_out, "shutdown\n"); 1685 ret = 0; 1686 goto shut; 1687 } else { 1688 read_tty = 1; 1689 write_ssl = 0; 1690 break; 1691 } 1692 1693 case SSL_ERROR_SYSCALL: 1694 if ((k != 0) || (cbuf_len != 0)) { 1695 BIO_printf(bio_err, "write:errno=%d\n", 1696 get_last_socket_error()); 1697 goto shut; 1698 } else { 1699 read_tty = 1; 1700 write_ssl = 0; 1701 } 1702 break; 1703 case SSL_ERROR_SSL: 1704 ERR_print_errors(bio_err); 1705 goto shut; 1706 } 1707 } 1708#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 1709 /* Assume Windows/DOS/BeOS can always write */ 1710 else if (!ssl_pending && write_tty) 1711#else 1712 else if (!ssl_pending && FD_ISSET(fileno(stdout), &writefds)) 1713#endif 1714 { 1715#ifdef CHARSET_EBCDIC 1716 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); 1717#endif 1718 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); 1719 1720 if (i <= 0) { 1721 BIO_printf(bio_c_out, "DONE\n"); 1722 ret = 0; 1723 goto shut; 1724 /* goto end; */ 1725 } 1726 1727 sbuf_len -= i;; 1728 sbuf_off += i; 1729 if (sbuf_len <= 0) { 1730 read_ssl = 1; 1731 write_tty = 0; 1732 } 1733 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { 1734#ifdef RENEG 1735 { 1736 static int iiii; 1737 if (++iiii == 52) { 1738 SSL_renegotiate(con); 1739 iiii = 0; 1740 } 1741 } 1742#endif 1743#if 1 1744 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 1745#else 1746/* Demo for pending and peek :-) */ 1747 k = SSL_read(con, sbuf, 16); 1748 { 1749 char zbuf[10240]; 1750 printf("read=%d pending=%d peek=%d\n", k, SSL_pending(con), 1751 SSL_peek(con, zbuf, 10240)); 1752 } 1753#endif 1754 1755 switch (SSL_get_error(con, k)) { 1756 case SSL_ERROR_NONE: 1757 if (k <= 0) 1758 goto end; 1759 sbuf_off = 0; 1760 sbuf_len = k; 1761 1762 read_ssl = 0; 1763 write_tty = 1; 1764 break; 1765 case SSL_ERROR_WANT_WRITE: 1766 BIO_printf(bio_c_out, "read W BLOCK\n"); 1767 write_ssl = 1; 1768 read_tty = 0; 1769 break; 1770 case SSL_ERROR_WANT_READ: 1771 BIO_printf(bio_c_out, "read R BLOCK\n"); 1772 write_tty = 0; 1773 read_ssl = 1; 1774 if ((read_tty == 0) && (write_ssl == 0)) 1775 write_ssl = 1; 1776 break; 1777 case SSL_ERROR_WANT_X509_LOOKUP: 1778 BIO_printf(bio_c_out, "read X BLOCK\n"); 1779 break; 1780 case SSL_ERROR_SYSCALL: 1781 ret = get_last_socket_error(); 1782 BIO_printf(bio_err, "read:errno=%d\n", ret); 1783 goto shut; 1784 case SSL_ERROR_ZERO_RETURN: 1785 BIO_printf(bio_c_out, "closed\n"); 1786 ret = 0; 1787 goto shut; 1788 case SSL_ERROR_SSL: 1789 ERR_print_errors(bio_err); 1790 goto shut; 1791 /* break; */ 1792 } 1793 } 1794#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1795# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1796 else if (_kbhit()) 1797# else 1798 else if ((_kbhit()) 1799 || (WAIT_OBJECT_0 == 1800 WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) 1801# endif 1802#elif defined (OPENSSL_SYS_NETWARE) 1803 else if (_kbhit()) 1804#elif defined(OPENSSL_SYS_BEOS_R5) 1805 else if (stdin_set) 1806#else 1807 else if (FD_ISSET(fileno(stdin), &readfds)) 1808#endif 1809 { 1810 if (crlf) { 1811 int j, lf_num; 1812 1813 i = raw_read_stdin(cbuf, BUFSIZZ / 2); 1814 lf_num = 0; 1815 /* both loops are skipped when i <= 0 */ 1816 for (j = 0; j < i; j++) 1817 if (cbuf[j] == '\n') 1818 lf_num++; 1819 for (j = i - 1; j >= 0; j--) { 1820 cbuf[j + lf_num] = cbuf[j]; 1821 if (cbuf[j] == '\n') { 1822 lf_num--; 1823 i++; 1824 cbuf[j + lf_num] = '\r'; 1825 } 1826 } 1827 assert(lf_num == 0); 1828 } else 1829 i = raw_read_stdin(cbuf, BUFSIZZ); 1830 1831 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) { 1832 BIO_printf(bio_err, "DONE\n"); 1833 ret = 0; 1834 goto shut; 1835 } 1836 1837 if ((!c_ign_eof) && (cbuf[0] == 'R')) { 1838 BIO_printf(bio_err, "RENEGOTIATING\n"); 1839 SSL_renegotiate(con); 1840 cbuf_len = 0; 1841 } 1842#ifndef OPENSSL_NO_HEARTBEATS 1843 else if ((!c_ign_eof) && (cbuf[0] == 'B')) { 1844 BIO_printf(bio_err, "HEARTBEATING\n"); 1845 SSL_heartbeat(con); 1846 cbuf_len = 0; 1847 } 1848#endif 1849 else { 1850 cbuf_len = i; 1851 cbuf_off = 0; 1852#ifdef CHARSET_EBCDIC 1853 ebcdic2ascii(cbuf, cbuf, i); 1854#endif 1855 } 1856 1857 write_ssl = 1; 1858 read_tty = 0; 1859 } 1860 } 1861 1862 ret = 0; 1863 shut: 1864 if (in_init) 1865 print_stuff(bio_c_out, con, full_log); 1866 SSL_shutdown(con); 1867 SHUTDOWN(SSL_get_fd(con)); 1868 end: 1869 if (con != NULL) { 1870 if (prexit != 0) 1871 print_stuff(bio_c_out, con, 1); 1872 SSL_free(con); 1873 } 1874#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1875 if (next_proto.data) 1876 OPENSSL_free(next_proto.data); 1877#endif 1878 if (ctx != NULL) 1879 SSL_CTX_free(ctx); 1880 if (cert) 1881 X509_free(cert); 1882 if (key) 1883 EVP_PKEY_free(key); 1884 if (pass) 1885 OPENSSL_free(pass); 1886 if (vpm) 1887 X509_VERIFY_PARAM_free(vpm); 1888 if (cbuf != NULL) { 1889 OPENSSL_cleanse(cbuf, BUFSIZZ); 1890 OPENSSL_free(cbuf); 1891 } 1892 if (sbuf != NULL) { 1893 OPENSSL_cleanse(sbuf, BUFSIZZ); 1894 OPENSSL_free(sbuf); 1895 } 1896 if (mbuf != NULL) { 1897 OPENSSL_cleanse(mbuf, BUFSIZZ); 1898 OPENSSL_free(mbuf); 1899 } 1900 if (bio_c_out != NULL) { 1901 BIO_free(bio_c_out); 1902 bio_c_out = NULL; 1903 } 1904 apps_shutdown(); 1905 OPENSSL_EXIT(ret); 1906} 1907 1908static void print_stuff(BIO *bio, SSL *s, int full) 1909{ 1910 X509 *peer = NULL; 1911 char *p; 1912 static const char *space = " "; 1913 char buf[BUFSIZ]; 1914 STACK_OF(X509) *sk; 1915 STACK_OF(X509_NAME) *sk2; 1916 const SSL_CIPHER *c; 1917 X509_NAME *xn; 1918 int j, i; 1919#ifndef OPENSSL_NO_COMP 1920 const COMP_METHOD *comp, *expansion; 1921#endif 1922 unsigned char *exportedkeymat; 1923 1924 if (full) { 1925 int got_a_chain = 0; 1926 1927 sk = SSL_get_peer_cert_chain(s); 1928 if (sk != NULL) { 1929 got_a_chain = 1; /* we don't have it for SSL2 (yet) */ 1930 1931 BIO_printf(bio, "---\nCertificate chain\n"); 1932 for (i = 0; i < sk_X509_num(sk); i++) { 1933 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)), 1934 buf, sizeof buf); 1935 BIO_printf(bio, "%2d s:%s\n", i, buf); 1936 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)), 1937 buf, sizeof buf); 1938 BIO_printf(bio, " i:%s\n", buf); 1939 if (c_showcerts) 1940 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 1941 } 1942 } 1943 1944 BIO_printf(bio, "---\n"); 1945 peer = SSL_get_peer_certificate(s); 1946 if (peer != NULL) { 1947 BIO_printf(bio, "Server certificate\n"); 1948 1949 /* Redundant if we showed the whole chain */ 1950 if (!(c_showcerts && got_a_chain)) 1951 PEM_write_bio_X509(bio, peer); 1952 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 1953 BIO_printf(bio, "subject=%s\n", buf); 1954 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 1955 BIO_printf(bio, "issuer=%s\n", buf); 1956 } else 1957 BIO_printf(bio, "no peer certificate available\n"); 1958 1959 sk2 = SSL_get_client_CA_list(s); 1960 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { 1961 BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); 1962 for (i = 0; i < sk_X509_NAME_num(sk2); i++) { 1963 xn = sk_X509_NAME_value(sk2, i); 1964 X509_NAME_oneline(xn, buf, sizeof(buf)); 1965 BIO_write(bio, buf, strlen(buf)); 1966 BIO_write(bio, "\n", 1); 1967 } 1968 } else { 1969 BIO_printf(bio, "---\nNo client certificate CA names sent\n"); 1970 } 1971 p = SSL_get_shared_ciphers(s, buf, sizeof buf); 1972 if (p != NULL) { 1973 /* 1974 * This works only for SSL 2. In later protocol versions, the 1975 * client does not know what other ciphers (in addition to the 1976 * one to be used in the current connection) the server supports. 1977 */ 1978 1979 BIO_printf(bio, 1980 "---\nCiphers common between both SSL endpoints:\n"); 1981 j = i = 0; 1982 while (*p) { 1983 if (*p == ':') { 1984 BIO_write(bio, space, 15 - j % 25); 1985 i++; 1986 j = 0; 1987 BIO_write(bio, ((i % 3) ? " " : "\n"), 1); 1988 } else { 1989 BIO_write(bio, p, 1); 1990 j++; 1991 } 1992 p++; 1993 } 1994 BIO_write(bio, "\n", 1); 1995 } 1996 1997 BIO_printf(bio, 1998 "---\nSSL handshake has read %ld bytes and written %ld bytes\n", 1999 BIO_number_read(SSL_get_rbio(s)), 2000 BIO_number_written(SSL_get_wbio(s))); 2001 } 2002 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, ")); 2003 c = SSL_get_current_cipher(s); 2004 BIO_printf(bio, "%s, Cipher is %s\n", 2005 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 2006 if (peer != NULL) { 2007 EVP_PKEY *pktmp; 2008 pktmp = X509_get_pubkey(peer); 2009 BIO_printf(bio, "Server public key is %d bit\n", 2010 EVP_PKEY_bits(pktmp)); 2011 EVP_PKEY_free(pktmp); 2012 } 2013 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 2014 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 2015#ifndef OPENSSL_NO_COMP 2016 comp = SSL_get_current_compression(s); 2017 expansion = SSL_get_current_expansion(s); 2018 BIO_printf(bio, "Compression: %s\n", 2019 comp ? SSL_COMP_get_name(comp) : "NONE"); 2020 BIO_printf(bio, "Expansion: %s\n", 2021 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 2022#endif 2023 2024#ifdef SSL_DEBUG 2025 { 2026 /* Print out local port of connection: useful for debugging */ 2027 int sock; 2028 struct sockaddr_in ladd; 2029 socklen_t ladd_size = sizeof(ladd); 2030 sock = SSL_get_fd(s); 2031 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size); 2032 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); 2033 } 2034#endif 2035 2036#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 2037 if (next_proto.status != -1) { 2038 const unsigned char *proto; 2039 unsigned int proto_len; 2040 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 2041 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 2042 BIO_write(bio, proto, proto_len); 2043 BIO_write(bio, "\n", 1); 2044 } 2045#endif 2046 2047#ifndef OPENSSL_NO_SRTP 2048 { 2049 SRTP_PROTECTION_PROFILE *srtp_profile = 2050 SSL_get_selected_srtp_profile(s); 2051 2052 if (srtp_profile) 2053 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 2054 srtp_profile->name); 2055 } 2056#endif 2057 2058 SSL_SESSION_print(bio, SSL_get_session(s)); 2059 if (keymatexportlabel != NULL) { 2060 BIO_printf(bio, "Keying material exporter:\n"); 2061 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 2062 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 2063 exportedkeymat = OPENSSL_malloc(keymatexportlen); 2064 if (exportedkeymat != NULL) { 2065 if (!SSL_export_keying_material(s, exportedkeymat, 2066 keymatexportlen, 2067 keymatexportlabel, 2068 strlen(keymatexportlabel), 2069 NULL, 0, 0)) { 2070 BIO_printf(bio, " Error\n"); 2071 } else { 2072 BIO_printf(bio, " Keying material: "); 2073 for (i = 0; i < keymatexportlen; i++) 2074 BIO_printf(bio, "%02X", exportedkeymat[i]); 2075 BIO_printf(bio, "\n"); 2076 } 2077 OPENSSL_free(exportedkeymat); 2078 } 2079 } 2080 BIO_printf(bio, "---\n"); 2081 if (peer != NULL) 2082 X509_free(peer); 2083 /* flush, or debugging output gets mixed with http response */ 2084 (void)BIO_flush(bio); 2085} 2086 2087#ifndef OPENSSL_NO_TLSEXT 2088 2089static int ocsp_resp_cb(SSL *s, void *arg) 2090{ 2091 const unsigned char *p; 2092 int len; 2093 OCSP_RESPONSE *rsp; 2094 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 2095 BIO_puts(arg, "OCSP response: "); 2096 if (!p) { 2097 BIO_puts(arg, "no response sent\n"); 2098 return 1; 2099 } 2100 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 2101 if (!rsp) { 2102 BIO_puts(arg, "response parse error\n"); 2103 BIO_dump_indent(arg, (char *)p, len, 4); 2104 return 0; 2105 } 2106 BIO_puts(arg, "\n======================================\n"); 2107 OCSP_RESPONSE_print(arg, rsp, 0); 2108 BIO_puts(arg, "======================================\n"); 2109 OCSP_RESPONSE_free(rsp); 2110 return 1; 2111} 2112 2113#endif 2114