s_client.c revision 296341
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 " -no_alt_chains - only ever use the first certificate chain found\n"); 327 BIO_printf(bio_err, 328 " -reconnect - Drop and re-make the connection with the same Session-ID\n"); 329 BIO_printf(bio_err, 330 " -pause - sleep(1) after each read(2) and write(2) system call\n"); 331 BIO_printf(bio_err, 332 " -prexit - print session information even on connection failure\n"); 333 BIO_printf(bio_err, 334 " -showcerts - show all certificates in the chain\n"); 335 BIO_printf(bio_err, " -debug - extra output\n"); 336#ifdef WATT32 337 BIO_printf(bio_err, " -wdebug - WATT-32 tcp debugging\n"); 338#endif 339 BIO_printf(bio_err, " -msg - Show protocol messages\n"); 340 BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n"); 341 BIO_printf(bio_err, " -state - print the 'ssl' states\n"); 342#ifdef FIONBIO 343 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n"); 344#endif 345 BIO_printf(bio_err, 346 " -crlf - convert LF from terminal into CRLF\n"); 347 BIO_printf(bio_err, " -quiet - no s_client output\n"); 348 BIO_printf(bio_err, 349 " -ign_eof - ignore input eof (default when -quiet)\n"); 350 BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n"); 351#ifndef OPENSSL_NO_PSK 352 BIO_printf(bio_err, " -psk_identity arg - PSK identity\n"); 353 BIO_printf(bio_err, " -psk arg - PSK in hex (without 0x)\n"); 354# ifndef OPENSSL_NO_JPAKE 355 BIO_printf(bio_err, " -jpake arg - JPAKE secret to use\n"); 356# endif 357#endif 358#ifndef OPENSSL_NO_SRP 359 BIO_printf(bio_err, 360 " -srpuser user - SRP authentification for 'user'\n"); 361 BIO_printf(bio_err, " -srppass arg - password for 'user'\n"); 362 BIO_printf(bio_err, 363 " -srp_lateuser - SRP username into second ClientHello message\n"); 364 BIO_printf(bio_err, 365 " -srp_moregroups - Tolerate other than the known g N values.\n"); 366 BIO_printf(bio_err, 367 " -srp_strength int - minimal length in bits for N (default %d).\n", 368 SRP_MINIMAL_N); 369#endif 370 BIO_printf(bio_err, " -ssl2 - just use SSLv2\n"); 371#ifndef OPENSSL_NO_SSL3_METHOD 372 BIO_printf(bio_err, " -ssl3 - just use SSLv3\n"); 373#endif 374 BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n"); 375 BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n"); 376 BIO_printf(bio_err, " -tls1 - just use TLSv1\n"); 377 BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n"); 378 BIO_printf(bio_err, " -fallback_scsv - send TLS_FALLBACK_SCSV\n"); 379 BIO_printf(bio_err, " -mtu - set the link layer MTU\n"); 380 BIO_printf(bio_err, 381 " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); 382 BIO_printf(bio_err, 383 " -bugs - Switch on all SSL implementation bug workarounds\n"); 384 BIO_printf(bio_err, 385 " -serverpref - Use server's cipher preferences (only SSLv2)\n"); 386 BIO_printf(bio_err, 387 " -cipher - preferred cipher to use, use the 'openssl ciphers'\n"); 388 BIO_printf(bio_err, 389 " command to see what is available\n"); 390 BIO_printf(bio_err, 391 " -starttls prot - use the STARTTLS command before starting TLS\n"); 392 BIO_printf(bio_err, 393 " for those protocols that support it, where\n"); 394 BIO_printf(bio_err, 395 " 'prot' defines which one to assume. Currently,\n"); 396 BIO_printf(bio_err, 397 " only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n"); 398 BIO_printf(bio_err, " are supported.\n"); 399#ifndef OPENSSL_NO_ENGINE 400 BIO_printf(bio_err, 401 " -engine id - Initialise and use the specified engine\n"); 402#endif 403 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, 404 LIST_SEPARATOR_CHAR); 405 BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n"); 406 BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n"); 407#ifndef OPENSSL_NO_TLSEXT 408 BIO_printf(bio_err, 409 " -servername host - Set TLS extension servername in ClientHello\n"); 410 BIO_printf(bio_err, 411 " -tlsextdebug - hex dump of all TLS extensions received\n"); 412 BIO_printf(bio_err, 413 " -status - request certificate status from server\n"); 414 BIO_printf(bio_err, 415 " -no_ticket - disable use of RFC4507bis session tickets\n"); 416# ifndef OPENSSL_NO_NEXTPROTONEG 417 BIO_printf(bio_err, 418 " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n"); 419# endif 420#endif 421 BIO_printf(bio_err, 422 " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n"); 423#ifndef OPENSSL_NO_SRTP 424 BIO_printf(bio_err, 425 " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 426#endif 427 BIO_printf(bio_err, 428 " -keymatexport label - Export keying material using label\n"); 429 BIO_printf(bio_err, 430 " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 431} 432 433#ifndef OPENSSL_NO_TLSEXT 434 435/* This is a context that we pass to callbacks */ 436typedef struct tlsextctx_st { 437 BIO *biodebug; 438 int ack; 439} tlsextctx; 440 441static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg) 442{ 443 tlsextctx *p = (tlsextctx *) arg; 444 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 445 if (SSL_get_servername_type(s) != -1) 446 p->ack = !SSL_session_reused(s) && hn != NULL; 447 else 448 BIO_printf(bio_err, "Can't use SSL_get_servername\n"); 449 450 return SSL_TLSEXT_ERR_OK; 451} 452 453# ifndef OPENSSL_NO_SRP 454 455/* This is a context that we pass to all callbacks */ 456typedef struct srp_arg_st { 457 char *srppassin; 458 char *srplogin; 459 int msg; /* copy from c_msg */ 460 int debug; /* copy from c_debug */ 461 int amp; /* allow more groups */ 462 int strength /* minimal size for N */ ; 463} SRP_ARG; 464 465# define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 466 467static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g) 468{ 469 BN_CTX *bn_ctx = BN_CTX_new(); 470 BIGNUM *p = BN_new(); 471 BIGNUM *r = BN_new(); 472 int ret = 473 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && 474 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 475 p != NULL && BN_rshift1(p, N) && 476 /* p = (N-1)/2 */ 477 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 478 r != NULL && 479 /* verify g^((N-1)/2) == -1 (mod N) */ 480 BN_mod_exp(r, g, p, N, bn_ctx) && 481 BN_add_word(r, 1) && BN_cmp(r, N) == 0; 482 483 if (r) 484 BN_free(r); 485 if (p) 486 BN_free(p); 487 if (bn_ctx) 488 BN_CTX_free(bn_ctx); 489 return ret; 490} 491 492/*- 493 * This callback is used here for two purposes: 494 * - extended debugging 495 * - making some primality tests for unknown groups 496 * The callback is only called for a non default group. 497 * 498 * An application does not need the call back at all if 499 * only the stanard groups are used. In real life situations, 500 * client and server already share well known groups, 501 * thus there is no need to verify them. 502 * Furthermore, in case that a server actually proposes a group that 503 * is not one of those defined in RFC 5054, it is more appropriate 504 * to add the group to a static list and then compare since 505 * primality tests are rather cpu consuming. 506 */ 507 508static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg) 509{ 510 SRP_ARG *srp_arg = (SRP_ARG *)arg; 511 BIGNUM *N = NULL, *g = NULL; 512 if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s))) 513 return 0; 514 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) { 515 BIO_printf(bio_err, "SRP parameters:\n"); 516 BIO_printf(bio_err, "\tN="); 517 BN_print(bio_err, N); 518 BIO_printf(bio_err, "\n\tg="); 519 BN_print(bio_err, g); 520 BIO_printf(bio_err, "\n"); 521 } 522 523 if (SRP_check_known_gN_param(g, N)) 524 return 1; 525 526 if (srp_arg->amp == 1) { 527 if (srp_arg->debug) 528 BIO_printf(bio_err, 529 "SRP param N and g are not known params, going to check deeper.\n"); 530 531 /* 532 * The srp_moregroups is a real debugging feature. Implementors 533 * should rather add the value to the known ones. The minimal size 534 * has already been tested. 535 */ 536 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g)) 537 return 1; 538 } 539 BIO_printf(bio_err, "SRP param N and g rejected.\n"); 540 return 0; 541} 542 543# define PWD_STRLEN 1024 544 545static char *MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg) 546{ 547 SRP_ARG *srp_arg = (SRP_ARG *)arg; 548 char *pass = (char *)OPENSSL_malloc(PWD_STRLEN + 1); 549 PW_CB_DATA cb_tmp; 550 int l; 551 552 if (!pass) { 553 BIO_printf(bio_err, "Malloc failure\n"); 554 return NULL; 555 } 556 557 cb_tmp.password = (char *)srp_arg->srppassin; 558 cb_tmp.prompt_info = "SRP user"; 559 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) { 560 BIO_printf(bio_err, "Can't read Password\n"); 561 OPENSSL_free(pass); 562 return NULL; 563 } 564 *(pass + l) = '\0'; 565 566 return pass; 567} 568 569# endif 570# ifndef OPENSSL_NO_SRTP 571char *srtp_profiles = NULL; 572# endif 573 574# ifndef OPENSSL_NO_NEXTPROTONEG 575/* This the context that we pass to next_proto_cb */ 576typedef struct tlsextnextprotoctx_st { 577 unsigned char *data; 578 unsigned short len; 579 int status; 580} tlsextnextprotoctx; 581 582static tlsextnextprotoctx next_proto; 583 584static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, 585 const unsigned char *in, unsigned int inlen, 586 void *arg) 587{ 588 tlsextnextprotoctx *ctx = arg; 589 590 if (!c_quiet) { 591 /* We can assume that |in| is syntactically valid. */ 592 unsigned i; 593 BIO_printf(bio_c_out, "Protocols advertised by server: "); 594 for (i = 0; i < inlen;) { 595 if (i) 596 BIO_write(bio_c_out, ", ", 2); 597 BIO_write(bio_c_out, &in[i + 1], in[i]); 598 i += in[i] + 1; 599 } 600 BIO_write(bio_c_out, "\n", 1); 601 } 602 603 ctx->status = 604 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); 605 return SSL_TLSEXT_ERR_OK; 606} 607# endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 608#endif 609 610enum { 611 PROTO_OFF = 0, 612 PROTO_SMTP, 613 PROTO_POP3, 614 PROTO_IMAP, 615 PROTO_FTP, 616 PROTO_XMPP 617}; 618 619int MAIN(int, char **); 620 621int MAIN(int argc, char **argv) 622{ 623 unsigned int off = 0, clr = 0; 624 SSL *con = NULL; 625#ifndef OPENSSL_NO_KRB5 626 KSSL_CTX *kctx; 627#endif 628 int s, k, width, state = 0; 629 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL; 630 int cbuf_len, cbuf_off; 631 int sbuf_len, sbuf_off; 632 fd_set readfds, writefds; 633 short port = PORT; 634 int full_log = 1; 635 char *host = SSL_HOST_NAME; 636 char *cert_file = NULL, *key_file = NULL; 637 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 638 char *passarg = NULL, *pass = NULL; 639 X509 *cert = NULL; 640 EVP_PKEY *key = NULL; 641 char *CApath = NULL, *CAfile = NULL, *cipher = NULL; 642 int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0; 643 int crlf = 0; 644 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; 645 SSL_CTX *ctx = NULL; 646 int ret = 1, in_init = 1, i, nbio_test = 0; 647 int starttls_proto = PROTO_OFF; 648 int prexit = 0; 649 X509_VERIFY_PARAM *vpm = NULL; 650 int badarg = 0; 651 const SSL_METHOD *meth = NULL; 652 int socket_type = SOCK_STREAM; 653 BIO *sbio; 654 char *inrand = NULL; 655 int mbuf_len = 0; 656 struct timeval timeout, *timeoutp; 657#ifndef OPENSSL_NO_ENGINE 658 char *engine_id = NULL; 659 char *ssl_client_engine_id = NULL; 660 ENGINE *ssl_client_engine = NULL; 661#endif 662 ENGINE *e = NULL; 663#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 664 struct timeval tv; 665# if defined(OPENSSL_SYS_BEOS_R5) 666 int stdin_set = 0; 667# endif 668#endif 669#ifndef OPENSSL_NO_TLSEXT 670 char *servername = NULL; 671 tlsextctx tlsextcbp = { NULL, 0 }; 672# ifndef OPENSSL_NO_NEXTPROTONEG 673 const char *next_proto_neg_in = NULL; 674# endif 675#endif 676 char *sess_in = NULL; 677 char *sess_out = NULL; 678 struct sockaddr peer; 679 int peerlen = sizeof(peer); 680 int fallback_scsv = 0; 681 int enable_timeouts = 0; 682 long socket_mtu = 0; 683#ifndef OPENSSL_NO_JPAKE 684 char *jpake_secret = NULL; 685#endif 686#ifndef OPENSSL_NO_SRP 687 char *srppass = NULL; 688 int srp_lateuser = 0; 689 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; 690#endif 691 692 meth = SSLv23_client_method(); 693 694 apps_startup(); 695 c_Pause = 0; 696 c_quiet = 0; 697 c_ign_eof = 0; 698 c_debug = 0; 699 c_msg = 0; 700 c_showcerts = 0; 701 702 if (bio_err == NULL) 703 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 704 705 if (!load_config(bio_err, NULL)) 706 goto end; 707 708 if (((cbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 709 ((sbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) || 710 ((mbuf = OPENSSL_malloc(BUFSIZZ)) == NULL)) { 711 BIO_printf(bio_err, "out of memory\n"); 712 goto end; 713 } 714 715 verify_depth = 0; 716 verify_error = X509_V_OK; 717#ifdef FIONBIO 718 c_nbio = 0; 719#endif 720 721 argc--; 722 argv++; 723 while (argc >= 1) { 724 if (strcmp(*argv, "-host") == 0) { 725 if (--argc < 1) 726 goto bad; 727 host = *(++argv); 728 } else if (strcmp(*argv, "-port") == 0) { 729 if (--argc < 1) 730 goto bad; 731 port = atoi(*(++argv)); 732 if (port == 0) 733 goto bad; 734 } else if (strcmp(*argv, "-connect") == 0) { 735 if (--argc < 1) 736 goto bad; 737 if (!extract_host_port(*(++argv), &host, NULL, &port)) 738 goto bad; 739 } else if (strcmp(*argv, "-verify") == 0) { 740 verify = SSL_VERIFY_PEER; 741 if (--argc < 1) 742 goto bad; 743 verify_depth = atoi(*(++argv)); 744 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 745 } else if (strcmp(*argv, "-cert") == 0) { 746 if (--argc < 1) 747 goto bad; 748 cert_file = *(++argv); 749 } else if (strcmp(*argv, "-sess_out") == 0) { 750 if (--argc < 1) 751 goto bad; 752 sess_out = *(++argv); 753 } else if (strcmp(*argv, "-sess_in") == 0) { 754 if (--argc < 1) 755 goto bad; 756 sess_in = *(++argv); 757 } else if (strcmp(*argv, "-certform") == 0) { 758 if (--argc < 1) 759 goto bad; 760 cert_format = str2fmt(*(++argv)); 761 } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 762 if (badarg) 763 goto bad; 764 continue; 765 } else if (strcmp(*argv, "-verify_return_error") == 0) 766 verify_return_error = 1; 767 else if (strcmp(*argv, "-prexit") == 0) 768 prexit = 1; 769 else if (strcmp(*argv, "-crlf") == 0) 770 crlf = 1; 771 else if (strcmp(*argv, "-quiet") == 0) { 772 c_quiet = 1; 773 c_ign_eof = 1; 774 } else if (strcmp(*argv, "-ign_eof") == 0) 775 c_ign_eof = 1; 776 else if (strcmp(*argv, "-no_ign_eof") == 0) 777 c_ign_eof = 0; 778 else if (strcmp(*argv, "-pause") == 0) 779 c_Pause = 1; 780 else if (strcmp(*argv, "-debug") == 0) 781 c_debug = 1; 782#ifndef OPENSSL_NO_TLSEXT 783 else if (strcmp(*argv, "-tlsextdebug") == 0) 784 c_tlsextdebug = 1; 785 else if (strcmp(*argv, "-status") == 0) 786 c_status_req = 1; 787#endif 788#ifdef WATT32 789 else if (strcmp(*argv, "-wdebug") == 0) 790 dbug_init(); 791#endif 792 else if (strcmp(*argv, "-msg") == 0) 793 c_msg = 1; 794 else if (strcmp(*argv, "-showcerts") == 0) 795 c_showcerts = 1; 796 else if (strcmp(*argv, "-nbio_test") == 0) 797 nbio_test = 1; 798 else if (strcmp(*argv, "-state") == 0) 799 state = 1; 800#ifndef OPENSSL_NO_PSK 801 else if (strcmp(*argv, "-psk_identity") == 0) { 802 if (--argc < 1) 803 goto bad; 804 psk_identity = *(++argv); 805 } else if (strcmp(*argv, "-psk") == 0) { 806 size_t j; 807 808 if (--argc < 1) 809 goto bad; 810 psk_key = *(++argv); 811 for (j = 0; j < strlen(psk_key); j++) { 812 if (isxdigit((unsigned char)psk_key[j])) 813 continue; 814 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv); 815 goto bad; 816 } 817 } 818#endif 819#ifndef OPENSSL_NO_SRP 820 else if (strcmp(*argv, "-srpuser") == 0) { 821 if (--argc < 1) 822 goto bad; 823 srp_arg.srplogin = *(++argv); 824 meth = TLSv1_client_method(); 825 } else if (strcmp(*argv, "-srppass") == 0) { 826 if (--argc < 1) 827 goto bad; 828 srppass = *(++argv); 829 meth = TLSv1_client_method(); 830 } else if (strcmp(*argv, "-srp_strength") == 0) { 831 if (--argc < 1) 832 goto bad; 833 srp_arg.strength = atoi(*(++argv)); 834 BIO_printf(bio_err, "SRP minimal length for N is %d\n", 835 srp_arg.strength); 836 meth = TLSv1_client_method(); 837 } else if (strcmp(*argv, "-srp_lateuser") == 0) { 838 srp_lateuser = 1; 839 meth = TLSv1_client_method(); 840 } else if (strcmp(*argv, "-srp_moregroups") == 0) { 841 srp_arg.amp = 1; 842 meth = TLSv1_client_method(); 843 } 844#endif 845#ifndef OPENSSL_NO_SSL2 846 else if (strcmp(*argv, "-ssl2") == 0) 847 meth = SSLv2_client_method(); 848#endif 849#ifndef OPENSSL_NO_SSL3_METHOD 850 else if (strcmp(*argv, "-ssl3") == 0) 851 meth = SSLv3_client_method(); 852#endif 853#ifndef OPENSSL_NO_TLS1 854 else if (strcmp(*argv, "-tls1_2") == 0) 855 meth = TLSv1_2_client_method(); 856 else if (strcmp(*argv, "-tls1_1") == 0) 857 meth = TLSv1_1_client_method(); 858 else if (strcmp(*argv, "-tls1") == 0) 859 meth = TLSv1_client_method(); 860#endif 861#ifndef OPENSSL_NO_DTLS1 862 else if (strcmp(*argv, "-dtls1") == 0) { 863 meth = DTLSv1_client_method(); 864 socket_type = SOCK_DGRAM; 865 } else if (strcmp(*argv, "-fallback_scsv") == 0) { 866 fallback_scsv = 1; 867 } else if (strcmp(*argv, "-timeout") == 0) 868 enable_timeouts = 1; 869 else if (strcmp(*argv, "-mtu") == 0) { 870 if (--argc < 1) 871 goto bad; 872 socket_mtu = atol(*(++argv)); 873 } 874#endif 875 else if (strcmp(*argv, "-bugs") == 0) 876 bugs = 1; 877 else if (strcmp(*argv, "-keyform") == 0) { 878 if (--argc < 1) 879 goto bad; 880 key_format = str2fmt(*(++argv)); 881 } else if (strcmp(*argv, "-pass") == 0) { 882 if (--argc < 1) 883 goto bad; 884 passarg = *(++argv); 885 } else if (strcmp(*argv, "-key") == 0) { 886 if (--argc < 1) 887 goto bad; 888 key_file = *(++argv); 889 } else if (strcmp(*argv, "-reconnect") == 0) { 890 reconnect = 5; 891 } else if (strcmp(*argv, "-CApath") == 0) { 892 if (--argc < 1) 893 goto bad; 894 CApath = *(++argv); 895 } else if (strcmp(*argv, "-CAfile") == 0) { 896 if (--argc < 1) 897 goto bad; 898 CAfile = *(++argv); 899 } else if (strcmp(*argv, "-no_tls1_2") == 0) 900 off |= SSL_OP_NO_TLSv1_2; 901 else if (strcmp(*argv, "-no_tls1_1") == 0) 902 off |= SSL_OP_NO_TLSv1_1; 903 else if (strcmp(*argv, "-no_tls1") == 0) 904 off |= SSL_OP_NO_TLSv1; 905 else if (strcmp(*argv, "-no_ssl3") == 0) 906 off |= SSL_OP_NO_SSLv3; 907 else if (strcmp(*argv, "-no_ssl2") == 0) 908 off |= SSL_OP_NO_SSLv2; 909 else if (strcmp(*argv, "-no_comp") == 0) { 910 off |= SSL_OP_NO_COMPRESSION; 911 } 912#ifndef OPENSSL_NO_TLSEXT 913 else if (strcmp(*argv, "-no_ticket") == 0) { 914 off |= SSL_OP_NO_TICKET; 915 } 916# ifndef OPENSSL_NO_NEXTPROTONEG 917 else if (strcmp(*argv, "-nextprotoneg") == 0) { 918 if (--argc < 1) 919 goto bad; 920 next_proto_neg_in = *(++argv); 921 } 922# endif 923#endif 924 else if (strcmp(*argv, "-serverpref") == 0) 925 off |= SSL_OP_CIPHER_SERVER_PREFERENCE; 926 else if (strcmp(*argv, "-legacy_renegotiation") == 0) 927 off |= SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION; 928 else if (strcmp(*argv, "-legacy_server_connect") == 0) { 929 off |= SSL_OP_LEGACY_SERVER_CONNECT; 930 } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) { 931 clr |= SSL_OP_LEGACY_SERVER_CONNECT; 932 } else if (strcmp(*argv, "-cipher") == 0) { 933 if (--argc < 1) 934 goto bad; 935 cipher = *(++argv); 936 } 937#ifdef FIONBIO 938 else if (strcmp(*argv, "-nbio") == 0) { 939 c_nbio = 1; 940 } 941#endif 942 else if (strcmp(*argv, "-starttls") == 0) { 943 if (--argc < 1) 944 goto bad; 945 ++argv; 946 if (strcmp(*argv, "smtp") == 0) 947 starttls_proto = PROTO_SMTP; 948 else if (strcmp(*argv, "pop3") == 0) 949 starttls_proto = PROTO_POP3; 950 else if (strcmp(*argv, "imap") == 0) 951 starttls_proto = PROTO_IMAP; 952 else if (strcmp(*argv, "ftp") == 0) 953 starttls_proto = PROTO_FTP; 954 else if (strcmp(*argv, "xmpp") == 0) 955 starttls_proto = PROTO_XMPP; 956 else 957 goto bad; 958 } 959#ifndef OPENSSL_NO_ENGINE 960 else if (strcmp(*argv, "-engine") == 0) { 961 if (--argc < 1) 962 goto bad; 963 engine_id = *(++argv); 964 } else if (strcmp(*argv, "-ssl_client_engine") == 0) { 965 if (--argc < 1) 966 goto bad; 967 ssl_client_engine_id = *(++argv); 968 } 969#endif 970 else if (strcmp(*argv, "-rand") == 0) { 971 if (--argc < 1) 972 goto bad; 973 inrand = *(++argv); 974 } 975#ifndef OPENSSL_NO_TLSEXT 976 else if (strcmp(*argv, "-servername") == 0) { 977 if (--argc < 1) 978 goto bad; 979 servername = *(++argv); 980 /* meth=TLSv1_client_method(); */ 981 } 982#endif 983#ifndef OPENSSL_NO_JPAKE 984 else if (strcmp(*argv, "-jpake") == 0) { 985 if (--argc < 1) 986 goto bad; 987 jpake_secret = *++argv; 988 } 989#endif 990#ifndef OPENSSL_NO_SRTP 991 else if (strcmp(*argv, "-use_srtp") == 0) { 992 if (--argc < 1) 993 goto bad; 994 srtp_profiles = *(++argv); 995 } 996#endif 997 else if (strcmp(*argv, "-keymatexport") == 0) { 998 if (--argc < 1) 999 goto bad; 1000 keymatexportlabel = *(++argv); 1001 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 1002 if (--argc < 1) 1003 goto bad; 1004 keymatexportlen = atoi(*(++argv)); 1005 if (keymatexportlen == 0) 1006 goto bad; 1007 } else { 1008 BIO_printf(bio_err, "unknown option %s\n", *argv); 1009 badop = 1; 1010 break; 1011 } 1012 argc--; 1013 argv++; 1014 } 1015 if (badop) { 1016 bad: 1017 sc_usage(); 1018 goto end; 1019 } 1020#if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK) 1021 if (jpake_secret) { 1022 if (psk_key) { 1023 BIO_printf(bio_err, "Can't use JPAKE and PSK together\n"); 1024 goto end; 1025 } 1026 psk_identity = "JPAKE"; 1027 if (cipher) { 1028 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n"); 1029 goto end; 1030 } 1031 cipher = "PSK"; 1032 } 1033#endif 1034 1035 OpenSSL_add_ssl_algorithms(); 1036 SSL_load_error_strings(); 1037 1038#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1039 next_proto.status = -1; 1040 if (next_proto_neg_in) { 1041 next_proto.data = 1042 next_protos_parse(&next_proto.len, next_proto_neg_in); 1043 if (next_proto.data == NULL) { 1044 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1045 goto end; 1046 } 1047 } else 1048 next_proto.data = NULL; 1049#endif 1050 1051#ifndef OPENSSL_NO_ENGINE 1052 e = setup_engine(bio_err, engine_id, 1); 1053 if (ssl_client_engine_id) { 1054 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id); 1055 if (!ssl_client_engine) { 1056 BIO_printf(bio_err, "Error getting client auth engine\n"); 1057 goto end; 1058 } 1059 } 1060#endif 1061 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { 1062 BIO_printf(bio_err, "Error getting password\n"); 1063 goto end; 1064 } 1065 1066 if (key_file == NULL) 1067 key_file = cert_file; 1068 1069 if (key_file) { 1070 1071 key = load_key(bio_err, key_file, key_format, 0, pass, e, 1072 "client certificate private key file"); 1073 if (!key) { 1074 ERR_print_errors(bio_err); 1075 goto end; 1076 } 1077 1078 } 1079 1080 if (cert_file) { 1081 cert = load_cert(bio_err, cert_file, cert_format, 1082 NULL, e, "client certificate file"); 1083 1084 if (!cert) { 1085 ERR_print_errors(bio_err); 1086 goto end; 1087 } 1088 } 1089 1090 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 1091 && !RAND_status()) { 1092 BIO_printf(bio_err, 1093 "warning, not much extra random data, consider using the -rand option\n"); 1094 } 1095 if (inrand != NULL) 1096 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 1097 app_RAND_load_files(inrand)); 1098 1099 if (bio_c_out == NULL) { 1100 if (c_quiet && !c_debug && !c_msg) { 1101 bio_c_out = BIO_new(BIO_s_null()); 1102 } else { 1103 if (bio_c_out == NULL) 1104 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE); 1105 } 1106 } 1107#ifndef OPENSSL_NO_SRP 1108 if (!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL)) { 1109 BIO_printf(bio_err, "Error getting password\n"); 1110 goto end; 1111 } 1112#endif 1113 1114 ctx = SSL_CTX_new(meth); 1115 if (ctx == NULL) { 1116 ERR_print_errors(bio_err); 1117 goto end; 1118 } 1119 1120 if (vpm) 1121 SSL_CTX_set1_param(ctx, vpm); 1122 1123#ifndef OPENSSL_NO_ENGINE 1124 if (ssl_client_engine) { 1125 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { 1126 BIO_puts(bio_err, "Error setting client auth engine\n"); 1127 ERR_print_errors(bio_err); 1128 ENGINE_free(ssl_client_engine); 1129 goto end; 1130 } 1131 ENGINE_free(ssl_client_engine); 1132 } 1133#endif 1134 1135#ifndef OPENSSL_NO_PSK 1136# ifdef OPENSSL_NO_JPAKE 1137 if (psk_key != NULL) 1138# else 1139 if (psk_key != NULL || jpake_secret) 1140# endif 1141 { 1142 if (c_debug) 1143 BIO_printf(bio_c_out, 1144 "PSK key given or JPAKE in use, setting client callback\n"); 1145 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1146 } 1147#endif 1148#ifndef OPENSSL_NO_SRTP 1149 if (srtp_profiles != NULL) 1150 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 1151#endif 1152 if (bugs) 1153 SSL_CTX_set_options(ctx, SSL_OP_ALL | off); 1154 else 1155 SSL_CTX_set_options(ctx, off); 1156 1157 if (clr) 1158 SSL_CTX_clear_options(ctx, clr); 1159 1160#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1161 if (next_proto.data) 1162 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1163#endif 1164 1165 if (state) 1166 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 1167 if (cipher != NULL) 1168 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 1169 BIO_printf(bio_err, "error setting cipher list\n"); 1170 ERR_print_errors(bio_err); 1171 goto end; 1172 } 1173#if 0 1174 else 1175 SSL_CTX_set_cipher_list(ctx, getenv("SSL_CIPHER")); 1176#endif 1177 1178 SSL_CTX_set_verify(ctx, verify, verify_callback); 1179 if (!set_cert_key_stuff(ctx, cert, key)) 1180 goto end; 1181 1182 if ((CAfile || CApath) 1183 && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) { 1184 ERR_print_errors(bio_err); 1185 } 1186 if (!SSL_CTX_set_default_verify_paths(ctx)) { 1187 ERR_print_errors(bio_err); 1188 } 1189#ifndef OPENSSL_NO_TLSEXT 1190 if (servername != NULL) { 1191 tlsextcbp.biodebug = bio_err; 1192 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1193 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1194 } 1195# ifndef OPENSSL_NO_SRP 1196 if (srp_arg.srplogin) { 1197 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { 1198 BIO_printf(bio_err, "Unable to set SRP username\n"); 1199 goto end; 1200 } 1201 srp_arg.msg = c_msg; 1202 srp_arg.debug = c_debug; 1203 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); 1204 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1205 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1206 if (c_msg || c_debug || srp_arg.amp == 0) 1207 SSL_CTX_set_srp_verify_param_callback(ctx, 1208 ssl_srp_verify_param_cb); 1209 } 1210# endif 1211#endif 1212 1213 con = SSL_new(ctx); 1214 if (sess_in) { 1215 SSL_SESSION *sess; 1216 BIO *stmp = BIO_new_file(sess_in, "r"); 1217 if (!stmp) { 1218 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1219 ERR_print_errors(bio_err); 1220 goto end; 1221 } 1222 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1223 BIO_free(stmp); 1224 if (!sess) { 1225 BIO_printf(bio_err, "Can't open session file %s\n", sess_in); 1226 ERR_print_errors(bio_err); 1227 goto end; 1228 } 1229 SSL_set_session(con, sess); 1230 SSL_SESSION_free(sess); 1231 } 1232 1233 if (fallback_scsv) 1234 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 1235 1236#ifndef OPENSSL_NO_TLSEXT 1237 if (servername != NULL) { 1238 if (!SSL_set_tlsext_host_name(con, servername)) { 1239 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 1240 ERR_print_errors(bio_err); 1241 goto end; 1242 } 1243 } 1244#endif 1245#ifndef OPENSSL_NO_KRB5 1246 if (con && (kctx = kssl_ctx_new()) != NULL) { 1247 SSL_set0_kssl_ctx(con, kctx); 1248 kssl_ctx_setstring(kctx, KSSL_SERVER, host); 1249 } 1250#endif /* OPENSSL_NO_KRB5 */ 1251/* SSL_set_cipher_list(con,"RC4-MD5"); */ 1252#if 0 1253# ifdef TLSEXT_TYPE_opaque_prf_input 1254 SSL_set_tlsext_opaque_prf_input(con, "Test client", 11); 1255# endif 1256#endif 1257 1258 re_start: 1259 1260 if (init_client(&s, host, port, socket_type) == 0) { 1261 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); 1262 SHUTDOWN(s); 1263 goto end; 1264 } 1265 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 1266 1267#ifdef FIONBIO 1268 if (c_nbio) { 1269 unsigned long l = 1; 1270 BIO_printf(bio_c_out, "turning on non blocking io\n"); 1271 if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) { 1272 ERR_print_errors(bio_err); 1273 goto end; 1274 } 1275 } 1276#endif 1277 if (c_Pause & 0x01) 1278 SSL_set_debug(con, 1); 1279 1280 if (SSL_version(con) == DTLS1_VERSION) { 1281 1282 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 1283 if (getsockname(s, &peer, (void *)&peerlen) < 0) { 1284 BIO_printf(bio_err, "getsockname:errno=%d\n", 1285 get_last_socket_error()); 1286 SHUTDOWN(s); 1287 goto end; 1288 } 1289 1290 (void)BIO_ctrl_set_connected(sbio, 1, &peer); 1291 1292 if (enable_timeouts) { 1293 timeout.tv_sec = 0; 1294 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1295 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1296 1297 timeout.tv_sec = 0; 1298 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1299 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1300 } 1301 1302 if (socket_mtu) { 1303 if (socket_mtu < DTLS_get_link_min_mtu(con)) { 1304 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", 1305 DTLS_get_link_min_mtu(con)); 1306 BIO_free(sbio); 1307 goto shut; 1308 } 1309 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1310 if (!DTLS_set_link_mtu(con, socket_mtu)) { 1311 BIO_printf(bio_err, "Failed to set MTU\n"); 1312 BIO_free(sbio); 1313 goto shut; 1314 } 1315 } else 1316 /* want to do MTU discovery */ 1317 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1318 } else 1319 sbio = BIO_new_socket(s, BIO_NOCLOSE); 1320 1321 if (nbio_test) { 1322 BIO *test; 1323 1324 test = BIO_new(BIO_f_nbio_test()); 1325 sbio = BIO_push(test, sbio); 1326 } 1327 1328 if (c_debug) { 1329 SSL_set_debug(con, 1); 1330 BIO_set_callback(sbio, bio_dump_callback); 1331 BIO_set_callback_arg(sbio, (char *)bio_c_out); 1332 } 1333 if (c_msg) { 1334 SSL_set_msg_callback(con, msg_cb); 1335 SSL_set_msg_callback_arg(con, bio_c_out); 1336 } 1337#ifndef OPENSSL_NO_TLSEXT 1338 if (c_tlsextdebug) { 1339 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1340 SSL_set_tlsext_debug_arg(con, bio_c_out); 1341 } 1342 if (c_status_req) { 1343 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 1344 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 1345 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 1346# if 0 1347 { 1348 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null(); 1349 OCSP_RESPID *id = OCSP_RESPID_new(); 1350 id->value.byKey = ASN1_OCTET_STRING_new(); 1351 id->type = V_OCSP_RESPID_KEY; 1352 ASN1_STRING_set(id->value.byKey, "Hello World", -1); 1353 sk_OCSP_RESPID_push(ids, id); 1354 SSL_set_tlsext_status_ids(con, ids); 1355 } 1356# endif 1357 } 1358#endif 1359#ifndef OPENSSL_NO_JPAKE 1360 if (jpake_secret) 1361 jpake_client_auth(bio_c_out, sbio, jpake_secret); 1362#endif 1363 1364 SSL_set_bio(con, sbio, sbio); 1365 SSL_set_connect_state(con); 1366 1367 /* ok, lets connect */ 1368 width = SSL_get_fd(con) + 1; 1369 1370 read_tty = 1; 1371 write_tty = 0; 1372 tty_on = 0; 1373 read_ssl = 1; 1374 write_ssl = 1; 1375 1376 cbuf_len = 0; 1377 cbuf_off = 0; 1378 sbuf_len = 0; 1379 sbuf_off = 0; 1380 1381 /* This is an ugly hack that does a lot of assumptions */ 1382 /* 1383 * We do have to handle multi-line responses which may come in a single 1384 * packet or not. We therefore have to use BIO_gets() which does need a 1385 * buffering BIO. So during the initial chitchat we do push a buffering 1386 * BIO into the chain that is removed again later on to not disturb the 1387 * rest of the s_client operation. 1388 */ 1389 if (starttls_proto == PROTO_SMTP) { 1390 int foundit = 0; 1391 BIO *fbio = BIO_new(BIO_f_buffer()); 1392 BIO_push(fbio, sbio); 1393 /* wait for multi-line response to end from SMTP */ 1394 do { 1395 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1396 } 1397 while (mbuf_len > 3 && mbuf[3] == '-'); 1398 /* STARTTLS command requires EHLO... */ 1399 BIO_printf(fbio, "EHLO openssl.client.net\r\n"); 1400 (void)BIO_flush(fbio); 1401 /* wait for multi-line response to end EHLO SMTP response */ 1402 do { 1403 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1404 if (strstr(mbuf, "STARTTLS")) 1405 foundit = 1; 1406 } 1407 while (mbuf_len > 3 && mbuf[3] == '-'); 1408 (void)BIO_flush(fbio); 1409 BIO_pop(fbio); 1410 BIO_free(fbio); 1411 if (!foundit) 1412 BIO_printf(bio_err, 1413 "didn't found starttls in server response," 1414 " try anyway...\n"); 1415 BIO_printf(sbio, "STARTTLS\r\n"); 1416 BIO_read(sbio, sbuf, BUFSIZZ); 1417 } else if (starttls_proto == PROTO_POP3) { 1418 BIO_read(sbio, mbuf, BUFSIZZ); 1419 BIO_printf(sbio, "STLS\r\n"); 1420 BIO_read(sbio, sbuf, BUFSIZZ); 1421 } else if (starttls_proto == PROTO_IMAP) { 1422 int foundit = 0; 1423 BIO *fbio = BIO_new(BIO_f_buffer()); 1424 BIO_push(fbio, sbio); 1425 BIO_gets(fbio, mbuf, BUFSIZZ); 1426 /* STARTTLS command requires CAPABILITY... */ 1427 BIO_printf(fbio, ". CAPABILITY\r\n"); 1428 (void)BIO_flush(fbio); 1429 /* wait for multi-line CAPABILITY response */ 1430 do { 1431 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1432 if (strstr(mbuf, "STARTTLS")) 1433 foundit = 1; 1434 } 1435 while (mbuf_len > 3 && mbuf[0] != '.'); 1436 (void)BIO_flush(fbio); 1437 BIO_pop(fbio); 1438 BIO_free(fbio); 1439 if (!foundit) 1440 BIO_printf(bio_err, 1441 "didn't found STARTTLS in server response," 1442 " try anyway...\n"); 1443 BIO_printf(sbio, ". STARTTLS\r\n"); 1444 BIO_read(sbio, sbuf, BUFSIZZ); 1445 } else if (starttls_proto == PROTO_FTP) { 1446 BIO *fbio = BIO_new(BIO_f_buffer()); 1447 BIO_push(fbio, sbio); 1448 /* wait for multi-line response to end from FTP */ 1449 do { 1450 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 1451 } 1452 while (mbuf_len > 3 && mbuf[3] == '-'); 1453 (void)BIO_flush(fbio); 1454 BIO_pop(fbio); 1455 BIO_free(fbio); 1456 BIO_printf(sbio, "AUTH TLS\r\n"); 1457 BIO_read(sbio, sbuf, BUFSIZZ); 1458 } 1459 if (starttls_proto == PROTO_XMPP) { 1460 int seen = 0; 1461 BIO_printf(sbio, "<stream:stream " 1462 "xmlns:stream='http://etherx.jabber.org/streams' " 1463 "xmlns='jabber:client' to='%s' version='1.0'>", host); 1464 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1465 mbuf[seen] = 0; 1466 while (!strstr 1467 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) { 1468 if (strstr(mbuf, "/stream:features>")) 1469 goto shut; 1470 seen = BIO_read(sbio, mbuf, BUFSIZZ); 1471 mbuf[seen] = 0; 1472 } 1473 BIO_printf(sbio, 1474 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 1475 seen = BIO_read(sbio, sbuf, BUFSIZZ); 1476 sbuf[seen] = 0; 1477 if (!strstr(sbuf, "<proceed")) 1478 goto shut; 1479 mbuf[0] = 0; 1480 } 1481 1482 for (;;) { 1483 FD_ZERO(&readfds); 1484 FD_ZERO(&writefds); 1485 1486 if ((SSL_version(con) == DTLS1_VERSION) && 1487 DTLSv1_get_timeout(con, &timeout)) 1488 timeoutp = &timeout; 1489 else 1490 timeoutp = NULL; 1491 1492 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { 1493 in_init = 1; 1494 tty_on = 0; 1495 } else { 1496 tty_on = 1; 1497 if (in_init) { 1498 in_init = 0; 1499#if 0 /* This test doesn't really work as intended 1500 * (needs to be fixed) */ 1501# ifndef OPENSSL_NO_TLSEXT 1502 if (servername != NULL && !SSL_session_reused(con)) { 1503 BIO_printf(bio_c_out, 1504 "Server did %sacknowledge servername extension.\n", 1505 tlsextcbp.ack ? "" : "not "); 1506 } 1507# endif 1508#endif 1509 if (sess_out) { 1510 BIO *stmp = BIO_new_file(sess_out, "w"); 1511 if (stmp) { 1512 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 1513 BIO_free(stmp); 1514 } else 1515 BIO_printf(bio_err, "Error writing session file %s\n", 1516 sess_out); 1517 } 1518 print_stuff(bio_c_out, con, full_log); 1519 if (full_log > 0) 1520 full_log--; 1521 1522 if (starttls_proto) { 1523 BIO_printf(bio_err, "%s", mbuf); 1524 /* We don't need to know any more */ 1525 starttls_proto = PROTO_OFF; 1526 } 1527 1528 if (reconnect) { 1529 reconnect--; 1530 BIO_printf(bio_c_out, 1531 "drop connection and then reconnect\n"); 1532 SSL_shutdown(con); 1533 SSL_set_connect_state(con); 1534 SHUTDOWN(SSL_get_fd(con)); 1535 goto re_start; 1536 } 1537 } 1538 } 1539 1540 ssl_pending = read_ssl && SSL_pending(con); 1541 1542 if (!ssl_pending) { 1543#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5) 1544 if (tty_on) { 1545 if (read_tty) 1546 openssl_fdset(fileno(stdin), &readfds); 1547 if (write_tty) 1548 openssl_fdset(fileno(stdout), &writefds); 1549 } 1550 if (read_ssl) 1551 openssl_fdset(SSL_get_fd(con), &readfds); 1552 if (write_ssl) 1553 openssl_fdset(SSL_get_fd(con), &writefds); 1554#else 1555 if (!tty_on || !write_tty) { 1556 if (read_ssl) 1557 openssl_fdset(SSL_get_fd(con), &readfds); 1558 if (write_ssl) 1559 openssl_fdset(SSL_get_fd(con), &writefds); 1560 } 1561#endif 1562/*- printf("mode tty(%d %d%d) ssl(%d%d)\n", 1563 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1564 1565 /* 1566 * Note: under VMS with SOCKETSHR the second parameter is 1567 * currently of type (int *) whereas under other systems it is 1568 * (void *) if you don't have a cast it will choke the compiler: 1569 * if you do have a cast then you can either go for (int *) or 1570 * (void *). 1571 */ 1572#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1573 /* 1574 * Under Windows/DOS we make the assumption that we can always 1575 * write to the tty: therefore if we need to write to the tty we 1576 * just fall through. Otherwise we timeout the select every 1577 * second and see if there are any keypresses. Note: this is a 1578 * hack, in a proper Windows application we wouldn't do this. 1579 */ 1580 i = 0; 1581 if (!write_tty) { 1582 if (read_tty) { 1583 tv.tv_sec = 1; 1584 tv.tv_usec = 0; 1585 i = select(width, (void *)&readfds, (void *)&writefds, 1586 NULL, &tv); 1587# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1588 if (!i && (!_kbhit() || !read_tty)) 1589 continue; 1590# else 1591 if (!i && (!((_kbhit()) 1592 || (WAIT_OBJECT_0 == 1593 WaitForSingleObject(GetStdHandle 1594 (STD_INPUT_HANDLE), 1595 0))) 1596 || !read_tty)) 1597 continue; 1598# endif 1599 } else 1600 i = select(width, (void *)&readfds, (void *)&writefds, 1601 NULL, timeoutp); 1602 } 1603#elif defined(OPENSSL_SYS_NETWARE) 1604 if (!write_tty) { 1605 if (read_tty) { 1606 tv.tv_sec = 1; 1607 tv.tv_usec = 0; 1608 i = select(width, (void *)&readfds, (void *)&writefds, 1609 NULL, &tv); 1610 } else 1611 i = select(width, (void *)&readfds, (void *)&writefds, 1612 NULL, timeoutp); 1613 } 1614#elif defined(OPENSSL_SYS_BEOS_R5) 1615 /* Under BeOS-R5 the situation is similar to DOS */ 1616 i = 0; 1617 stdin_set = 0; 1618 (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK); 1619 if (!write_tty) { 1620 if (read_tty) { 1621 tv.tv_sec = 1; 1622 tv.tv_usec = 0; 1623 i = select(width, (void *)&readfds, (void *)&writefds, 1624 NULL, &tv); 1625 if (read(fileno(stdin), sbuf, 0) >= 0) 1626 stdin_set = 1; 1627 if (!i && (stdin_set != 1 || !read_tty)) 1628 continue; 1629 } else 1630 i = select(width, (void *)&readfds, (void *)&writefds, 1631 NULL, timeoutp); 1632 } 1633 (void)fcntl(fileno(stdin), F_SETFL, 0); 1634#else 1635 i = select(width, (void *)&readfds, (void *)&writefds, 1636 NULL, timeoutp); 1637#endif 1638 if (i < 0) { 1639 BIO_printf(bio_err, "bad select %d\n", 1640 get_last_socket_error()); 1641 goto shut; 1642 /* goto end; */ 1643 } 1644 } 1645 1646 if ((SSL_version(con) == DTLS1_VERSION) 1647 && DTLSv1_handle_timeout(con) > 0) { 1648 BIO_printf(bio_err, "TIMEOUT occured\n"); 1649 } 1650 1651 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { 1652 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); 1653 switch (SSL_get_error(con, k)) { 1654 case SSL_ERROR_NONE: 1655 cbuf_off += k; 1656 cbuf_len -= k; 1657 if (k <= 0) 1658 goto end; 1659 /* we have done a write(con,NULL,0); */ 1660 if (cbuf_len <= 0) { 1661 read_tty = 1; 1662 write_ssl = 0; 1663 } else { /* if (cbuf_len > 0) */ 1664 1665 read_tty = 0; 1666 write_ssl = 1; 1667 } 1668 break; 1669 case SSL_ERROR_WANT_WRITE: 1670 BIO_printf(bio_c_out, "write W BLOCK\n"); 1671 write_ssl = 1; 1672 read_tty = 0; 1673 break; 1674 case SSL_ERROR_WANT_READ: 1675 BIO_printf(bio_c_out, "write R BLOCK\n"); 1676 write_tty = 0; 1677 read_ssl = 1; 1678 write_ssl = 0; 1679 break; 1680 case SSL_ERROR_WANT_X509_LOOKUP: 1681 BIO_printf(bio_c_out, "write X BLOCK\n"); 1682 break; 1683 case SSL_ERROR_ZERO_RETURN: 1684 if (cbuf_len != 0) { 1685 BIO_printf(bio_c_out, "shutdown\n"); 1686 ret = 0; 1687 goto shut; 1688 } else { 1689 read_tty = 1; 1690 write_ssl = 0; 1691 break; 1692 } 1693 1694 case SSL_ERROR_SYSCALL: 1695 if ((k != 0) || (cbuf_len != 0)) { 1696 BIO_printf(bio_err, "write:errno=%d\n", 1697 get_last_socket_error()); 1698 goto shut; 1699 } else { 1700 read_tty = 1; 1701 write_ssl = 0; 1702 } 1703 break; 1704 case SSL_ERROR_SSL: 1705 ERR_print_errors(bio_err); 1706 goto shut; 1707 } 1708 } 1709#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 1710 /* Assume Windows/DOS/BeOS can always write */ 1711 else if (!ssl_pending && write_tty) 1712#else 1713 else if (!ssl_pending && FD_ISSET(fileno(stdout), &writefds)) 1714#endif 1715 { 1716#ifdef CHARSET_EBCDIC 1717 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); 1718#endif 1719 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); 1720 1721 if (i <= 0) { 1722 BIO_printf(bio_c_out, "DONE\n"); 1723 ret = 0; 1724 goto shut; 1725 /* goto end; */ 1726 } 1727 1728 sbuf_len -= i;; 1729 sbuf_off += i; 1730 if (sbuf_len <= 0) { 1731 read_ssl = 1; 1732 write_tty = 0; 1733 } 1734 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { 1735#ifdef RENEG 1736 { 1737 static int iiii; 1738 if (++iiii == 52) { 1739 SSL_renegotiate(con); 1740 iiii = 0; 1741 } 1742 } 1743#endif 1744#if 1 1745 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 1746#else 1747/* Demo for pending and peek :-) */ 1748 k = SSL_read(con, sbuf, 16); 1749 { 1750 char zbuf[10240]; 1751 printf("read=%d pending=%d peek=%d\n", k, SSL_pending(con), 1752 SSL_peek(con, zbuf, 10240)); 1753 } 1754#endif 1755 1756 switch (SSL_get_error(con, k)) { 1757 case SSL_ERROR_NONE: 1758 if (k <= 0) 1759 goto end; 1760 sbuf_off = 0; 1761 sbuf_len = k; 1762 1763 read_ssl = 0; 1764 write_tty = 1; 1765 break; 1766 case SSL_ERROR_WANT_WRITE: 1767 BIO_printf(bio_c_out, "read W BLOCK\n"); 1768 write_ssl = 1; 1769 read_tty = 0; 1770 break; 1771 case SSL_ERROR_WANT_READ: 1772 BIO_printf(bio_c_out, "read R BLOCK\n"); 1773 write_tty = 0; 1774 read_ssl = 1; 1775 if ((read_tty == 0) && (write_ssl == 0)) 1776 write_ssl = 1; 1777 break; 1778 case SSL_ERROR_WANT_X509_LOOKUP: 1779 BIO_printf(bio_c_out, "read X BLOCK\n"); 1780 break; 1781 case SSL_ERROR_SYSCALL: 1782 ret = get_last_socket_error(); 1783 BIO_printf(bio_err, "read:errno=%d\n", ret); 1784 goto shut; 1785 case SSL_ERROR_ZERO_RETURN: 1786 BIO_printf(bio_c_out, "closed\n"); 1787 ret = 0; 1788 goto shut; 1789 case SSL_ERROR_SSL: 1790 ERR_print_errors(bio_err); 1791 goto shut; 1792 /* break; */ 1793 } 1794 } 1795#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1796# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1797 else if (_kbhit()) 1798# else 1799 else if ((_kbhit()) 1800 || (WAIT_OBJECT_0 == 1801 WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) 1802# endif 1803#elif defined (OPENSSL_SYS_NETWARE) 1804 else if (_kbhit()) 1805#elif defined(OPENSSL_SYS_BEOS_R5) 1806 else if (stdin_set) 1807#else 1808 else if (FD_ISSET(fileno(stdin), &readfds)) 1809#endif 1810 { 1811 if (crlf) { 1812 int j, lf_num; 1813 1814 i = raw_read_stdin(cbuf, BUFSIZZ / 2); 1815 lf_num = 0; 1816 /* both loops are skipped when i <= 0 */ 1817 for (j = 0; j < i; j++) 1818 if (cbuf[j] == '\n') 1819 lf_num++; 1820 for (j = i - 1; j >= 0; j--) { 1821 cbuf[j + lf_num] = cbuf[j]; 1822 if (cbuf[j] == '\n') { 1823 lf_num--; 1824 i++; 1825 cbuf[j + lf_num] = '\r'; 1826 } 1827 } 1828 assert(lf_num == 0); 1829 } else 1830 i = raw_read_stdin(cbuf, BUFSIZZ); 1831 1832 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) { 1833 BIO_printf(bio_err, "DONE\n"); 1834 ret = 0; 1835 goto shut; 1836 } 1837 1838 if ((!c_ign_eof) && (cbuf[0] == 'R')) { 1839 BIO_printf(bio_err, "RENEGOTIATING\n"); 1840 SSL_renegotiate(con); 1841 cbuf_len = 0; 1842 } 1843#ifndef OPENSSL_NO_HEARTBEATS 1844 else if ((!c_ign_eof) && (cbuf[0] == 'B')) { 1845 BIO_printf(bio_err, "HEARTBEATING\n"); 1846 SSL_heartbeat(con); 1847 cbuf_len = 0; 1848 } 1849#endif 1850 else { 1851 cbuf_len = i; 1852 cbuf_off = 0; 1853#ifdef CHARSET_EBCDIC 1854 ebcdic2ascii(cbuf, cbuf, i); 1855#endif 1856 } 1857 1858 write_ssl = 1; 1859 read_tty = 0; 1860 } 1861 } 1862 1863 ret = 0; 1864 shut: 1865 if (in_init) 1866 print_stuff(bio_c_out, con, full_log); 1867 SSL_shutdown(con); 1868 SHUTDOWN(SSL_get_fd(con)); 1869 end: 1870 if (con != NULL) { 1871 if (prexit != 0) 1872 print_stuff(bio_c_out, con, 1); 1873 SSL_free(con); 1874 } 1875#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1876 if (next_proto.data) 1877 OPENSSL_free(next_proto.data); 1878#endif 1879 if (ctx != NULL) 1880 SSL_CTX_free(ctx); 1881 if (cert) 1882 X509_free(cert); 1883 if (key) 1884 EVP_PKEY_free(key); 1885 if (pass) 1886 OPENSSL_free(pass); 1887 if (vpm) 1888 X509_VERIFY_PARAM_free(vpm); 1889 if (cbuf != NULL) { 1890 OPENSSL_cleanse(cbuf, BUFSIZZ); 1891 OPENSSL_free(cbuf); 1892 } 1893 if (sbuf != NULL) { 1894 OPENSSL_cleanse(sbuf, BUFSIZZ); 1895 OPENSSL_free(sbuf); 1896 } 1897 if (mbuf != NULL) { 1898 OPENSSL_cleanse(mbuf, BUFSIZZ); 1899 OPENSSL_free(mbuf); 1900 } 1901 if (bio_c_out != NULL) { 1902 BIO_free(bio_c_out); 1903 bio_c_out = NULL; 1904 } 1905 apps_shutdown(); 1906 OPENSSL_EXIT(ret); 1907} 1908 1909static void print_stuff(BIO *bio, SSL *s, int full) 1910{ 1911 X509 *peer = NULL; 1912 char *p; 1913 static const char *space = " "; 1914 char buf[BUFSIZ]; 1915 STACK_OF(X509) *sk; 1916 STACK_OF(X509_NAME) *sk2; 1917 const SSL_CIPHER *c; 1918 X509_NAME *xn; 1919 int j, i; 1920#ifndef OPENSSL_NO_COMP 1921 const COMP_METHOD *comp, *expansion; 1922#endif 1923 unsigned char *exportedkeymat; 1924 1925 if (full) { 1926 int got_a_chain = 0; 1927 1928 sk = SSL_get_peer_cert_chain(s); 1929 if (sk != NULL) { 1930 got_a_chain = 1; /* we don't have it for SSL2 (yet) */ 1931 1932 BIO_printf(bio, "---\nCertificate chain\n"); 1933 for (i = 0; i < sk_X509_num(sk); i++) { 1934 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)), 1935 buf, sizeof buf); 1936 BIO_printf(bio, "%2d s:%s\n", i, buf); 1937 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)), 1938 buf, sizeof buf); 1939 BIO_printf(bio, " i:%s\n", buf); 1940 if (c_showcerts) 1941 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 1942 } 1943 } 1944 1945 BIO_printf(bio, "---\n"); 1946 peer = SSL_get_peer_certificate(s); 1947 if (peer != NULL) { 1948 BIO_printf(bio, "Server certificate\n"); 1949 1950 /* Redundant if we showed the whole chain */ 1951 if (!(c_showcerts && got_a_chain)) 1952 PEM_write_bio_X509(bio, peer); 1953 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf); 1954 BIO_printf(bio, "subject=%s\n", buf); 1955 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf); 1956 BIO_printf(bio, "issuer=%s\n", buf); 1957 } else 1958 BIO_printf(bio, "no peer certificate available\n"); 1959 1960 sk2 = SSL_get_client_CA_list(s); 1961 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { 1962 BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); 1963 for (i = 0; i < sk_X509_NAME_num(sk2); i++) { 1964 xn = sk_X509_NAME_value(sk2, i); 1965 X509_NAME_oneline(xn, buf, sizeof(buf)); 1966 BIO_write(bio, buf, strlen(buf)); 1967 BIO_write(bio, "\n", 1); 1968 } 1969 } else { 1970 BIO_printf(bio, "---\nNo client certificate CA names sent\n"); 1971 } 1972 p = SSL_get_shared_ciphers(s, buf, sizeof buf); 1973 if (p != NULL) { 1974 /* 1975 * This works only for SSL 2. In later protocol versions, the 1976 * client does not know what other ciphers (in addition to the 1977 * one to be used in the current connection) the server supports. 1978 */ 1979 1980 BIO_printf(bio, 1981 "---\nCiphers common between both SSL endpoints:\n"); 1982 j = i = 0; 1983 while (*p) { 1984 if (*p == ':') { 1985 BIO_write(bio, space, 15 - j % 25); 1986 i++; 1987 j = 0; 1988 BIO_write(bio, ((i % 3) ? " " : "\n"), 1); 1989 } else { 1990 BIO_write(bio, p, 1); 1991 j++; 1992 } 1993 p++; 1994 } 1995 BIO_write(bio, "\n", 1); 1996 } 1997 1998 BIO_printf(bio, 1999 "---\nSSL handshake has read %ld bytes and written %ld bytes\n", 2000 BIO_number_read(SSL_get_rbio(s)), 2001 BIO_number_written(SSL_get_wbio(s))); 2002 } 2003 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, ")); 2004 c = SSL_get_current_cipher(s); 2005 BIO_printf(bio, "%s, Cipher is %s\n", 2006 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); 2007 if (peer != NULL) { 2008 EVP_PKEY *pktmp; 2009 pktmp = X509_get_pubkey(peer); 2010 BIO_printf(bio, "Server public key is %d bit\n", 2011 EVP_PKEY_bits(pktmp)); 2012 EVP_PKEY_free(pktmp); 2013 } 2014 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 2015 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 2016#ifndef OPENSSL_NO_COMP 2017 comp = SSL_get_current_compression(s); 2018 expansion = SSL_get_current_expansion(s); 2019 BIO_printf(bio, "Compression: %s\n", 2020 comp ? SSL_COMP_get_name(comp) : "NONE"); 2021 BIO_printf(bio, "Expansion: %s\n", 2022 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 2023#endif 2024 2025#ifdef SSL_DEBUG 2026 { 2027 /* Print out local port of connection: useful for debugging */ 2028 int sock; 2029 struct sockaddr_in ladd; 2030 socklen_t ladd_size = sizeof(ladd); 2031 sock = SSL_get_fd(s); 2032 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size); 2033 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); 2034 } 2035#endif 2036 2037#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 2038 if (next_proto.status != -1) { 2039 const unsigned char *proto; 2040 unsigned int proto_len; 2041 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 2042 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 2043 BIO_write(bio, proto, proto_len); 2044 BIO_write(bio, "\n", 1); 2045 } 2046#endif 2047 2048#ifndef OPENSSL_NO_SRTP 2049 { 2050 SRTP_PROTECTION_PROFILE *srtp_profile = 2051 SSL_get_selected_srtp_profile(s); 2052 2053 if (srtp_profile) 2054 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 2055 srtp_profile->name); 2056 } 2057#endif 2058 2059 SSL_SESSION_print(bio, SSL_get_session(s)); 2060 if (keymatexportlabel != NULL) { 2061 BIO_printf(bio, "Keying material exporter:\n"); 2062 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 2063 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 2064 exportedkeymat = OPENSSL_malloc(keymatexportlen); 2065 if (exportedkeymat != NULL) { 2066 if (!SSL_export_keying_material(s, exportedkeymat, 2067 keymatexportlen, 2068 keymatexportlabel, 2069 strlen(keymatexportlabel), 2070 NULL, 0, 0)) { 2071 BIO_printf(bio, " Error\n"); 2072 } else { 2073 BIO_printf(bio, " Keying material: "); 2074 for (i = 0; i < keymatexportlen; i++) 2075 BIO_printf(bio, "%02X", exportedkeymat[i]); 2076 BIO_printf(bio, "\n"); 2077 } 2078 OPENSSL_free(exportedkeymat); 2079 } 2080 } 2081 BIO_printf(bio, "---\n"); 2082 if (peer != NULL) 2083 X509_free(peer); 2084 /* flush, or debugging output gets mixed with http response */ 2085 (void)BIO_flush(bio); 2086} 2087 2088#ifndef OPENSSL_NO_TLSEXT 2089 2090static int ocsp_resp_cb(SSL *s, void *arg) 2091{ 2092 const unsigned char *p; 2093 int len; 2094 OCSP_RESPONSE *rsp; 2095 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 2096 BIO_puts(arg, "OCSP response: "); 2097 if (!p) { 2098 BIO_puts(arg, "no response sent\n"); 2099 return 1; 2100 } 2101 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 2102 if (!rsp) { 2103 BIO_puts(arg, "response parse error\n"); 2104 BIO_dump_indent(arg, (char *)p, len, 4); 2105 return 0; 2106 } 2107 BIO_puts(arg, "\n======================================\n"); 2108 OCSP_RESPONSE_print(arg, rsp, 0); 2109 BIO_puts(arg, "======================================\n"); 2110 OCSP_RESPONSE_free(rsp); 2111 return 1; 2112} 2113 2114#endif 2115