1 /* apps/s_client.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh (at) cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay (at) cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 /* ==================================================================== 59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * openssl-core (at) openssl.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay (at) cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh (at) cryptsoft.com). 109 * 110 */ 111 /* ==================================================================== 112 * Copyright 2005 Nokia. All rights reserved. 113 * 114 * The portions of the attached software ("Contribution") is developed by 115 * Nokia Corporation and is licensed pursuant to the OpenSSL open source 116 * license. 117 * 118 * The Contribution, originally written by Mika Kousa and Pasi Eronen of 119 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites 120 * support (see RFC 4279) to OpenSSL. 121 * 122 * No patent licenses or other rights except those expressly stated in 123 * the OpenSSL open source license shall be deemed granted or received 124 * expressly, by implication, estoppel, or otherwise. 125 * 126 * No assurances are provided by Nokia that the Contribution does not 127 * infringe the patent or other intellectual property rights of any third 128 * party or that the license provides you with all the necessary rights 129 * to make use of the Contribution. 130 * 131 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN 132 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA 133 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY 134 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR 135 * OTHERWISE. 136 */ 137 138 #include <assert.h> 139 #include <ctype.h> 140 #include <stdio.h> 141 #include <stdlib.h> 142 #include <string.h> 143 #include <openssl/e_os2.h> 144 #ifdef OPENSSL_NO_STDIO 145 #define APPS_WIN16 146 #endif 147 148 /* With IPv6, it looks like Digital has mixed up the proper order of 149 recursive header file inclusion, resulting in the compiler complaining 150 that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which 151 is needed to have fileno() declared correctly... So let's define u_int */ 152 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) 153 #define __U_INT 154 typedef unsigned int u_int; 155 #endif 156 157 #define USE_SOCKETS 158 #include "apps.h" 159 #include <openssl/x509.h> 160 #include <openssl/ssl.h> 161 #include <openssl/err.h> 162 #include <openssl/pem.h> 163 #include <openssl/rand.h> 164 #include <openssl/ocsp.h> 165 #include <openssl/bn.h> 166 #ifndef OPENSSL_NO_SRP 167 #include <openssl/srp.h> 168 #endif 169 #include "s_apps.h" 170 #include "timeouts.h" 171 172 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000) 173 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */ 174 #undef FIONBIO 175 #endif 176 177 #if defined(OPENSSL_SYS_BEOS_R5) 178 #include <fcntl.h> 179 #endif 180 181 #undef PROG 182 #define PROG s_client_main 183 184 /*#define SSL_HOST_NAME "www.netscape.com" */ 185 /*#define SSL_HOST_NAME "193.118.187.102" */ 186 #define SSL_HOST_NAME "localhost" 187 188 /*#define TEST_CERT "client.pem" */ /* no default cert. */ 189 190 #undef BUFSIZZ 191 #define BUFSIZZ 1024*8 192 193 extern int verify_depth; 194 extern int verify_error; 195 extern int verify_return_error; 196 197 #ifdef FIONBIO 198 static int c_nbio=0; 199 #endif 200 static int c_Pause=0; 201 static int c_debug=0; 202 #ifndef OPENSSL_NO_TLSEXT 203 static int c_tlsextdebug=0; 204 static int c_status_req=0; 205 #endif 206 static int c_msg=0; 207 static int c_showcerts=0; 208 209 static char *keymatexportlabel=NULL; 210 static int keymatexportlen=20; 211 212 static void sc_usage(void); 213 static void print_stuff(BIO *berr,SSL *con,int full); 214 #ifndef OPENSSL_NO_TLSEXT 215 static int ocsp_resp_cb(SSL *s, void *arg); 216 #endif 217 static BIO *bio_c_out=NULL; 218 static int c_quiet=0; 219 static int c_ign_eof=0; 220 221 #ifndef OPENSSL_NO_PSK 222 /* Default PSK identity and key */ 223 static char *psk_identity="Client_identity"; 224 /*char *psk_key=NULL; by default PSK is not used */ 225 226 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, 227 unsigned int max_identity_len, unsigned char *psk, 228 unsigned int max_psk_len) 229 { 230 unsigned int psk_len = 0; 231 int ret; 232 BIGNUM *bn=NULL; 233 234 if (c_debug) 235 BIO_printf(bio_c_out, "psk_client_cb\n"); 236 if (!hint) 237 { 238 /* no ServerKeyExchange message*/ 239 if (c_debug) 240 BIO_printf(bio_c_out,"NULL received PSK identity hint, continuing anyway\n"); 241 } 242 else if (c_debug) 243 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); 244 245 /* lookup PSK identity and PSK key based on the given identity hint here */ 246 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity); 247 if (ret < 0 || (unsigned int)ret > max_identity_len) 248 goto out_err; 249 if (c_debug) 250 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, ret); 251 ret=BN_hex2bn(&bn, psk_key); 252 if (!ret) 253 { 254 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key); 255 if (bn) 256 BN_free(bn); 257 return 0; 258 } 259 260 if ((unsigned int)BN_num_bytes(bn) > max_psk_len) 261 { 262 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n", 263 max_psk_len, BN_num_bytes(bn)); 264 BN_free(bn); 265 return 0; 266 } 267 268 psk_len=BN_bn2bin(bn, psk); 269 BN_free(bn); 270 if (psk_len == 0) 271 goto out_err; 272 273 if (c_debug) 274 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len); 275 276 return psk_len; 277 out_err: 278 if (c_debug) 279 BIO_printf(bio_err, "Error in PSK client callback\n"); 280 return 0; 281 } 282 #endif 283 284 static void sc_usage(void) 285 { 286 BIO_printf(bio_err,"usage: s_client args\n"); 287 BIO_printf(bio_err,"\n"); 288 BIO_printf(bio_err," -host host - use -connect instead\n"); 289 BIO_printf(bio_err," -port port - use -connect instead\n"); 290 BIO_printf(bio_err," -connect host:port - who to connect to (default is %s:%s)\n",SSL_HOST_NAME,PORT_STR); 291 292 BIO_printf(bio_err," -verify arg - turn on peer certificate verification\n"); 293 BIO_printf(bio_err," -verify_return_error - return verification errors\n"); 294 BIO_printf(bio_err," -cert arg - certificate file to use, PEM format assumed\n"); 295 BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n"); 296 BIO_printf(bio_err," -key arg - Private key file to use, in cert file if\n"); 297 BIO_printf(bio_err," not specified but cert file is.\n"); 298 BIO_printf(bio_err," -keyform arg - key format (PEM or DER) PEM default\n"); 299 BIO_printf(bio_err," -pass arg - private key file pass phrase source\n"); 300 BIO_printf(bio_err," -CApath arg - PEM format directory of CA's\n"); 301 BIO_printf(bio_err," -CAfile arg - PEM format file of CA's\n"); 302 BIO_printf(bio_err," -reconnect - Drop and re-make the connection with the same Session-ID\n"); 303 BIO_printf(bio_err," -pause - sleep(1) after each read(2) and write(2) system call\n"); 304 BIO_printf(bio_err," -prexit - print session information even on connection failure\n"); 305 BIO_printf(bio_err," -showcerts - show all certificates in the chain\n"); 306 BIO_printf(bio_err," -debug - extra output\n"); 307 #ifdef WATT32 308 BIO_printf(bio_err," -wdebug - WATT-32 tcp debugging\n"); 309 #endif 310 BIO_printf(bio_err," -msg - Show protocol messages\n"); 311 BIO_printf(bio_err," -nbio_test - more ssl protocol testing\n"); 312 BIO_printf(bio_err," -state - print the 'ssl' states\n"); 313 #ifdef FIONBIO 314 BIO_printf(bio_err," -nbio - Run with non-blocking IO\n"); 315 #endif 316 BIO_printf(bio_err," -crlf - convert LF from terminal into CRLF\n"); 317 BIO_printf(bio_err," -quiet - no s_client output\n"); 318 BIO_printf(bio_err," -ign_eof - ignore input eof (default when -quiet)\n"); 319 BIO_printf(bio_err," -no_ign_eof - don't ignore input eof\n"); 320 #ifndef OPENSSL_NO_PSK 321 BIO_printf(bio_err," -psk_identity arg - PSK identity\n"); 322 BIO_printf(bio_err," -psk arg - PSK in hex (without 0x)\n"); 323 # ifndef OPENSSL_NO_JPAKE 324 BIO_printf(bio_err," -jpake arg - JPAKE secret to use\n"); 325 # endif 326 #endif 327 #ifndef OPENSSL_NO_SRP 328 BIO_printf(bio_err," -srpuser user - SRP authentification for 'user'\n"); 329 BIO_printf(bio_err," -srppass arg - password for 'user'\n"); 330 BIO_printf(bio_err," -srp_lateuser - SRP username into second ClientHello message\n"); 331 BIO_printf(bio_err," -srp_moregroups - Tolerate other than the known g N values.\n"); 332 BIO_printf(bio_err," -srp_strength int - minimal mength in bits for N (default %d).\n",SRP_MINIMAL_N); 333 #endif 334 BIO_printf(bio_err," -ssl2 - just use SSLv2\n"); 335 BIO_printf(bio_err," -ssl3 - just use SSLv3\n"); 336 BIO_printf(bio_err," -tls1_2 - just use TLSv1.2\n"); 337 BIO_printf(bio_err," -tls1_1 - just use TLSv1.1\n"); 338 BIO_printf(bio_err," -tls1 - just use TLSv1\n"); 339 BIO_printf(bio_err," -dtls1 - just use DTLSv1\n"); 340 BIO_printf(bio_err," -fallback_scsv - send TLS_FALLBACK_SCSV\n"); 341 BIO_printf(bio_err," -mtu - set the link layer MTU\n"); 342 BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); 343 BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n"); 344 BIO_printf(bio_err," -serverpref - Use server's cipher preferences (only SSLv2)\n"); 345 BIO_printf(bio_err," -cipher - preferred cipher to use, use the 'openssl ciphers'\n"); 346 BIO_printf(bio_err," command to see what is available\n"); 347 BIO_printf(bio_err," -starttls prot - use the STARTTLS command before starting TLS\n"); 348 BIO_printf(bio_err," for those protocols that support it, where\n"); 349 BIO_printf(bio_err," 'prot' defines which one to assume. Currently,\n"); 350 BIO_printf(bio_err," only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n"); 351 BIO_printf(bio_err," are supported.\n"); 352 #ifndef OPENSSL_NO_ENGINE 353 BIO_printf(bio_err," -engine id - Initialise and use the specified engine\n"); 354 #endif 355 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 356 BIO_printf(bio_err," -sess_out arg - file to write SSL session to\n"); 357 BIO_printf(bio_err," -sess_in arg - file to read SSL session from\n"); 358 #ifndef OPENSSL_NO_TLSEXT 359 BIO_printf(bio_err," -servername host - Set TLS extension servername in ClientHello\n"); 360 BIO_printf(bio_err," -tlsextdebug - hex dump of all TLS extensions received\n"); 361 BIO_printf(bio_err," -status - request certificate status from server\n"); 362 BIO_printf(bio_err," -no_ticket - disable use of RFC4507bis session tickets\n"); 363 # ifndef OPENSSL_NO_NEXTPROTONEG 364 BIO_printf(bio_err," -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n"); 365 BIO_printf(bio_err," -alpn arg - enable ALPN extension, considering named protocols supported (comma-separated list)\n"); 366 # endif 367 #endif 368 BIO_printf(bio_err," -cutthrough - enable 1-RTT full-handshake for strong ciphers\n"); 369 BIO_printf(bio_err," -no_record_splitting - disable 1/n-1 record splitting in CBC mode\n"); 370 BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n"); 371 #ifndef OPENSSL_NO_SRTP 372 BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 373 #endif 374 BIO_printf(bio_err," -keymatexport label - Export keying material using label\n"); 375 BIO_printf(bio_err," -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 376 } 377 378 #ifndef OPENSSL_NO_TLSEXT 379 380 /* This is a context that we pass to callbacks */ 381 typedef struct tlsextctx_st { 382 BIO * biodebug; 383 int ack; 384 } tlsextctx; 385 386 387 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg) 388 { 389 tlsextctx * p = (tlsextctx *) arg; 390 const char * hn= SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 391 if (SSL_get_servername_type(s) != -1) 392 p->ack = !SSL_session_reused(s) && hn != NULL; 393 else 394 BIO_printf(bio_err,"Can't use SSL_get_servername\n"); 395 396 return SSL_TLSEXT_ERR_OK; 397 } 398 399 #ifndef OPENSSL_NO_SRP 400 401 /* This is a context that we pass to all callbacks */ 402 typedef struct srp_arg_st 403 { 404 char *srppassin; 405 char *srplogin; 406 int msg; /* copy from c_msg */ 407 int debug; /* copy from c_debug */ 408 int amp; /* allow more groups */ 409 int strength /* minimal size for N */ ; 410 } SRP_ARG; 411 412 #define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 413 414 static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g) 415 { 416 BN_CTX *bn_ctx = BN_CTX_new(); 417 BIGNUM *p = BN_new(); 418 BIGNUM *r = BN_new(); 419 int ret = 420 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && 421 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 422 p != NULL && BN_rshift1(p, N) && 423 424 /* p = (N-1)/2 */ 425 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) && 426 r != NULL && 427 428 /* verify g^((N-1)/2) == -1 (mod N) */ 429 BN_mod_exp(r, g, p, N, bn_ctx) && 430 BN_add_word(r, 1) && 431 BN_cmp(r, N) == 0; 432 433 if(r) 434 BN_free(r); 435 if(p) 436 BN_free(p); 437 if(bn_ctx) 438 BN_CTX_free(bn_ctx); 439 return ret; 440 } 441 442 /* This callback is used here for two purposes: 443 - extended debugging 444 - making some primality tests for unknown groups 445 The callback is only called for a non default group. 446 447 An application does not need the call back at all if 448 only the stanard groups are used. In real life situations, 449 client and server already share well known groups, 450 thus there is no need to verify them. 451 Furthermore, in case that a server actually proposes a group that 452 is not one of those defined in RFC 5054, it is more appropriate 453 to add the group to a static list and then compare since 454 primality tests are rather cpu consuming. 455 */ 456 457 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg) 458 { 459 SRP_ARG *srp_arg = (SRP_ARG *)arg; 460 BIGNUM *N = NULL, *g = NULL; 461 if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s))) 462 return 0; 463 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) 464 { 465 BIO_printf(bio_err, "SRP parameters:\n"); 466 BIO_printf(bio_err,"\tN="); BN_print(bio_err,N); 467 BIO_printf(bio_err,"\n\tg="); BN_print(bio_err,g); 468 BIO_printf(bio_err,"\n"); 469 } 470 471 if (SRP_check_known_gN_param(g,N)) 472 return 1; 473 474 if (srp_arg->amp == 1) 475 { 476 if (srp_arg->debug) 477 BIO_printf(bio_err, "SRP param N and g are not known params, going to check deeper.\n"); 478 479 /* The srp_moregroups is a real debugging feature. 480 Implementors should rather add the value to the known ones. 481 The minimal size has already been tested. 482 */ 483 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N,g)) 484 return 1; 485 } 486 BIO_printf(bio_err, "SRP param N and g rejected.\n"); 487 return 0; 488 } 489 490 #define PWD_STRLEN 1024 491 492 static char * MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg) 493 { 494 SRP_ARG *srp_arg = (SRP_ARG *)arg; 495 char *pass = (char *)OPENSSL_malloc(PWD_STRLEN+1); 496 PW_CB_DATA cb_tmp; 497 int l; 498 499 cb_tmp.password = (char *)srp_arg->srppassin; 500 cb_tmp.prompt_info = "SRP user"; 501 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp))<0) 502 { 503 BIO_printf (bio_err, "Can't read Password\n"); 504 OPENSSL_free(pass); 505 return NULL; 506 } 507 *(pass+l)= '\0'; 508 509 return pass; 510 } 511 512 #endif 513 #ifndef OPENSSL_NO_SRTP 514 char *srtp_profiles = NULL; 515 #endif 516 517 # ifndef OPENSSL_NO_NEXTPROTONEG 518 /* This the context that we pass to next_proto_cb */ 519 typedef struct tlsextnextprotoctx_st { 520 unsigned char *data; 521 unsigned short len; 522 int status; 523 } tlsextnextprotoctx; 524 525 static tlsextnextprotoctx next_proto; 526 527 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg) 528 { 529 tlsextnextprotoctx *ctx = arg; 530 531 if (!c_quiet) 532 { 533 /* We can assume that |in| is syntactically valid. */ 534 unsigned i; 535 BIO_printf(bio_c_out, "Protocols advertised by server: "); 536 for (i = 0; i < inlen; ) 537 { 538 if (i) 539 BIO_write(bio_c_out, ", ", 2); 540 BIO_write(bio_c_out, &in[i + 1], in[i]); 541 i += in[i] + 1; 542 } 543 BIO_write(bio_c_out, "\n", 1); 544 } 545 546 ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); 547 return SSL_TLSEXT_ERR_OK; 548 } 549 # endif /* ndef OPENSSL_NO_NEXTPROTONEG */ 550 #endif 551 552 enum 553 { 554 PROTO_OFF = 0, 555 PROTO_SMTP, 556 PROTO_POP3, 557 PROTO_IMAP, 558 PROTO_FTP, 559 PROTO_XMPP 560 }; 561 562 int MAIN(int, char **); 563 564 int MAIN(int argc, char **argv) 565 { 566 unsigned int off=0, clr=0; 567 SSL *con=NULL; 568 #ifndef OPENSSL_NO_KRB5 569 KSSL_CTX *kctx; 570 #endif 571 int s,k,width,state=0; 572 char *cbuf=NULL,*sbuf=NULL,*mbuf=NULL; 573 int cbuf_len,cbuf_off; 574 int sbuf_len,sbuf_off; 575 fd_set readfds,writefds; 576 short port=PORT; 577 int full_log=1; 578 char *host=SSL_HOST_NAME; 579 char *cert_file=NULL,*key_file=NULL; 580 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 581 char *passarg = NULL, *pass = NULL; 582 X509 *cert = NULL; 583 EVP_PKEY *key = NULL; 584 char *CApath=NULL,*CAfile=NULL,*cipher=NULL; 585 int reconnect=0,badop=0,verify=SSL_VERIFY_NONE,bugs=0; 586 int cutthrough=0, no_record_splitting=0; 587 int crlf=0; 588 int write_tty,read_tty,write_ssl,read_ssl,tty_on,ssl_pending; 589 SSL_CTX *ctx=NULL; 590 int ret=1,in_init=1,i,nbio_test=0; 591 int starttls_proto = PROTO_OFF; 592 int prexit = 0; 593 X509_VERIFY_PARAM *vpm = NULL; 594 int badarg = 0; 595 const SSL_METHOD *meth=NULL; 596 int socket_type=SOCK_STREAM; 597 BIO *sbio; 598 char *inrand=NULL; 599 int mbuf_len=0; 600 struct timeval timeout, *timeoutp; 601 int ssl_mode; 602 #ifndef OPENSSL_NO_ENGINE 603 char *engine_id=NULL; 604 char *ssl_client_engine_id=NULL; 605 ENGINE *ssl_client_engine=NULL; 606 #endif 607 ENGINE *e=NULL; 608 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 609 struct timeval tv; 610 #if defined(OPENSSL_SYS_BEOS_R5) 611 int stdin_set = 0; 612 #endif 613 #endif 614 #ifndef OPENSSL_NO_TLSEXT 615 char *servername = NULL; 616 tlsextctx tlsextcbp = 617 {NULL,0}; 618 # ifndef OPENSSL_NO_NEXTPROTONEG 619 const char *next_proto_neg_in = NULL; 620 const char *alpn_in = NULL; 621 # endif 622 #endif 623 char *sess_in = NULL; 624 char *sess_out = NULL; 625 struct sockaddr peer; 626 int peerlen = sizeof(peer); 627 int fallback_scsv = 0; 628 int enable_timeouts = 0 ; 629 long socket_mtu = 0; 630 #ifndef OPENSSL_NO_JPAKE 631 char *jpake_secret = NULL; 632 #endif 633 #ifndef OPENSSL_NO_SRP 634 char * srppass = NULL; 635 int srp_lateuser = 0; 636 SRP_ARG srp_arg = {NULL,NULL,0,0,0,1024}; 637 #endif 638 639 meth=SSLv23_client_method(); 640 641 apps_startup(); 642 c_Pause=0; 643 c_quiet=0; 644 c_ign_eof=0; 645 c_debug=0; 646 c_msg=0; 647 c_showcerts=0; 648 649 if (bio_err == NULL) 650 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE); 651 652 if (!load_config(bio_err, NULL)) 653 goto end; 654 655 if ( ((cbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) || 656 ((sbuf=OPENSSL_malloc(BUFSIZZ)) == NULL) || 657 ((mbuf=OPENSSL_malloc(BUFSIZZ)) == NULL)) 658 { 659 BIO_printf(bio_err,"out of memory\n"); 660 goto end; 661 } 662 663 verify_depth=0; 664 verify_error=X509_V_OK; 665 #ifdef FIONBIO 666 c_nbio=0; 667 #endif 668 669 argc--; 670 argv++; 671 while (argc >= 1) 672 { 673 if (strcmp(*argv,"-host") == 0) 674 { 675 if (--argc < 1) goto bad; 676 host= *(++argv); 677 } 678 else if (strcmp(*argv,"-port") == 0) 679 { 680 if (--argc < 1) goto bad; 681 port=atoi(*(++argv)); 682 if (port == 0) goto bad; 683 } 684 else if (strcmp(*argv,"-connect") == 0) 685 { 686 if (--argc < 1) goto bad; 687 if (!extract_host_port(*(++argv),&host,NULL,&port)) 688 goto bad; 689 } 690 else if (strcmp(*argv,"-verify") == 0) 691 { 692 verify=SSL_VERIFY_PEER; 693 if (--argc < 1) goto bad; 694 verify_depth=atoi(*(++argv)); 695 BIO_printf(bio_err,"verify depth is %d\n",verify_depth); 696 } 697 else if (strcmp(*argv,"-cert") == 0) 698 { 699 if (--argc < 1) goto bad; 700 cert_file= *(++argv); 701 } 702 else if (strcmp(*argv,"-sess_out") == 0) 703 { 704 if (--argc < 1) goto bad; 705 sess_out = *(++argv); 706 } 707 else if (strcmp(*argv,"-sess_in") == 0) 708 { 709 if (--argc < 1) goto bad; 710 sess_in = *(++argv); 711 } 712 else if (strcmp(*argv,"-certform") == 0) 713 { 714 if (--argc < 1) goto bad; 715 cert_format = str2fmt(*(++argv)); 716 } 717 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) 718 { 719 if (badarg) 720 goto bad; 721 continue; 722 } 723 else if (strcmp(*argv,"-verify_return_error") == 0) 724 verify_return_error = 1; 725 else if (strcmp(*argv,"-prexit") == 0) 726 prexit=1; 727 else if (strcmp(*argv,"-crlf") == 0) 728 crlf=1; 729 else if (strcmp(*argv,"-quiet") == 0) 730 { 731 c_quiet=1; 732 c_ign_eof=1; 733 } 734 else if (strcmp(*argv,"-ign_eof") == 0) 735 c_ign_eof=1; 736 else if (strcmp(*argv,"-no_ign_eof") == 0) 737 c_ign_eof=0; 738 else if (strcmp(*argv,"-pause") == 0) 739 c_Pause=1; 740 else if (strcmp(*argv,"-debug") == 0) 741 c_debug=1; 742 #ifndef OPENSSL_NO_TLSEXT 743 else if (strcmp(*argv,"-tlsextdebug") == 0) 744 c_tlsextdebug=1; 745 else if (strcmp(*argv,"-status") == 0) 746 c_status_req=1; 747 #endif 748 #ifdef WATT32 749 else if (strcmp(*argv,"-wdebug") == 0) 750 dbug_init(); 751 #endif 752 else if (strcmp(*argv,"-msg") == 0) 753 c_msg=1; 754 else if (strcmp(*argv,"-showcerts") == 0) 755 c_showcerts=1; 756 else if (strcmp(*argv,"-nbio_test") == 0) 757 nbio_test=1; 758 else if (strcmp(*argv,"-state") == 0) 759 state=1; 760 #ifndef OPENSSL_NO_PSK 761 else if (strcmp(*argv,"-psk_identity") == 0) 762 { 763 if (--argc < 1) goto bad; 764 psk_identity=*(++argv); 765 } 766 else if (strcmp(*argv,"-psk") == 0) 767 { 768 size_t j; 769 770 if (--argc < 1) goto bad; 771 psk_key=*(++argv); 772 for (j = 0; j < strlen(psk_key); j++) 773 { 774 if (isxdigit((unsigned char)psk_key[j])) 775 continue; 776 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv); 777 goto bad; 778 } 779 } 780 #endif 781 #ifndef OPENSSL_NO_SRP 782 else if (strcmp(*argv,"-srpuser") == 0) 783 { 784 if (--argc < 1) goto bad; 785 srp_arg.srplogin= *(++argv); 786 meth=TLSv1_client_method(); 787 } 788 else if (strcmp(*argv,"-srppass") == 0) 789 { 790 if (--argc < 1) goto bad; 791 srppass= *(++argv); 792 meth=TLSv1_client_method(); 793 } 794 else if (strcmp(*argv,"-srp_strength") == 0) 795 { 796 if (--argc < 1) goto bad; 797 srp_arg.strength=atoi(*(++argv)); 798 BIO_printf(bio_err,"SRP minimal length for N is %d\n",srp_arg.strength); 799 meth=TLSv1_client_method(); 800 } 801 else if (strcmp(*argv,"-srp_lateuser") == 0) 802 { 803 srp_lateuser= 1; 804 meth=TLSv1_client_method(); 805 } 806 else if (strcmp(*argv,"-srp_moregroups") == 0) 807 { 808 srp_arg.amp=1; 809 meth=TLSv1_client_method(); 810 } 811 #endif 812 #ifndef OPENSSL_NO_SSL2 813 else if (strcmp(*argv,"-ssl2") == 0) 814 meth=SSLv2_client_method(); 815 #endif 816 #ifndef OPENSSL_NO_SSL3 817 else if (strcmp(*argv,"-ssl3") == 0) 818 meth=SSLv3_client_method(); 819 #endif 820 #ifndef OPENSSL_NO_TLS1 821 else if (strcmp(*argv,"-tls1_2") == 0) 822 meth=TLSv1_2_client_method(); 823 else if (strcmp(*argv,"-tls1_1") == 0) 824 meth=TLSv1_1_client_method(); 825 else if (strcmp(*argv,"-tls1") == 0) 826 meth=TLSv1_client_method(); 827 #endif 828 #ifndef OPENSSL_NO_DTLS1 829 else if (strcmp(*argv,"-dtls1") == 0) 830 { 831 meth=DTLSv1_client_method(); 832 socket_type=SOCK_DGRAM; 833 } 834 else if (strcmp(*argv,"-fallback_scsv") == 0) 835 { 836 fallback_scsv = 1; 837 } 838 else if (strcmp(*argv,"-timeout") == 0) 839 enable_timeouts=1; 840 else if (strcmp(*argv,"-mtu") == 0) 841 { 842 if (--argc < 1) goto bad; 843 socket_mtu = atol(*(++argv)); 844 } 845 #endif 846 else if (strcmp(*argv,"-bugs") == 0) 847 bugs=1; 848 else if (strcmp(*argv,"-keyform") == 0) 849 { 850 if (--argc < 1) goto bad; 851 key_format = str2fmt(*(++argv)); 852 } 853 else if (strcmp(*argv,"-pass") == 0) 854 { 855 if (--argc < 1) goto bad; 856 passarg = *(++argv); 857 } 858 else if (strcmp(*argv,"-key") == 0) 859 { 860 if (--argc < 1) goto bad; 861 key_file= *(++argv); 862 } 863 else if (strcmp(*argv,"-reconnect") == 0) 864 { 865 reconnect=5; 866 } 867 else if (strcmp(*argv,"-CApath") == 0) 868 { 869 if (--argc < 1) goto bad; 870 CApath= *(++argv); 871 } 872 else if (strcmp(*argv,"-CAfile") == 0) 873 { 874 if (--argc < 1) goto bad; 875 CAfile= *(++argv); 876 } 877 else if (strcmp(*argv,"-no_tls1_2") == 0) 878 off|=SSL_OP_NO_TLSv1_2; 879 else if (strcmp(*argv,"-no_tls1_1") == 0) 880 off|=SSL_OP_NO_TLSv1_1; 881 else if (strcmp(*argv,"-no_tls1") == 0) 882 off|=SSL_OP_NO_TLSv1; 883 else if (strcmp(*argv,"-no_ssl3") == 0) 884 off|=SSL_OP_NO_SSLv3; 885 else if (strcmp(*argv,"-no_ssl2") == 0) 886 off|=SSL_OP_NO_SSLv2; 887 else if (strcmp(*argv,"-no_comp") == 0) 888 { off|=SSL_OP_NO_COMPRESSION; } 889 #ifndef OPENSSL_NO_TLSEXT 890 else if (strcmp(*argv,"-no_ticket") == 0) 891 { off|=SSL_OP_NO_TICKET; } 892 # ifndef OPENSSL_NO_NEXTPROTONEG 893 else if (strcmp(*argv,"-nextprotoneg") == 0) 894 { 895 if (--argc < 1) goto bad; 896 next_proto_neg_in = *(++argv); 897 } 898 else if (strcmp(*argv,"-alpn") == 0) 899 { 900 if (--argc < 1) goto bad; 901 alpn_in = *(++argv); 902 } 903 # endif 904 #endif 905 else if (strcmp(*argv,"-cutthrough") == 0) 906 cutthrough=1; 907 else if (strcmp(*argv,"-no_record_splitting") == 0) 908 no_record_splitting=1; 909 else if (strcmp(*argv,"-serverpref") == 0) 910 off|=SSL_OP_CIPHER_SERVER_PREFERENCE; 911 else if (strcmp(*argv,"-legacy_renegotiation") == 0) 912 off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION; 913 else if (strcmp(*argv,"-legacy_server_connect") == 0) 914 { off|=SSL_OP_LEGACY_SERVER_CONNECT; } 915 else if (strcmp(*argv,"-no_legacy_server_connect") == 0) 916 { clr|=SSL_OP_LEGACY_SERVER_CONNECT; } 917 else if (strcmp(*argv,"-cipher") == 0) 918 { 919 if (--argc < 1) goto bad; 920 cipher= *(++argv); 921 } 922 #ifdef FIONBIO 923 else if (strcmp(*argv,"-nbio") == 0) 924 { c_nbio=1; } 925 #endif 926 else if (strcmp(*argv,"-starttls") == 0) 927 { 928 if (--argc < 1) goto bad; 929 ++argv; 930 if (strcmp(*argv,"smtp") == 0) 931 starttls_proto = PROTO_SMTP; 932 else if (strcmp(*argv,"pop3") == 0) 933 starttls_proto = PROTO_POP3; 934 else if (strcmp(*argv,"imap") == 0) 935 starttls_proto = PROTO_IMAP; 936 else if (strcmp(*argv,"ftp") == 0) 937 starttls_proto = PROTO_FTP; 938 else if (strcmp(*argv, "xmpp") == 0) 939 starttls_proto = PROTO_XMPP; 940 else 941 goto bad; 942 } 943 #ifndef OPENSSL_NO_ENGINE 944 else if (strcmp(*argv,"-engine") == 0) 945 { 946 if (--argc < 1) goto bad; 947 engine_id = *(++argv); 948 } 949 else if (strcmp(*argv,"-ssl_client_engine") == 0) 950 { 951 if (--argc < 1) goto bad; 952 ssl_client_engine_id = *(++argv); 953 } 954 #endif 955 else if (strcmp(*argv,"-rand") == 0) 956 { 957 if (--argc < 1) goto bad; 958 inrand= *(++argv); 959 } 960 #ifndef OPENSSL_NO_TLSEXT 961 else if (strcmp(*argv,"-servername") == 0) 962 { 963 if (--argc < 1) goto bad; 964 servername= *(++argv); 965 /* meth=TLSv1_client_method(); */ 966 } 967 #endif 968 #ifndef OPENSSL_NO_JPAKE 969 else if (strcmp(*argv,"-jpake") == 0) 970 { 971 if (--argc < 1) goto bad; 972 jpake_secret = *++argv; 973 } 974 #endif 975 #ifndef OPENSSL_NO_SRTP 976 else if (strcmp(*argv,"-use_srtp") == 0) 977 { 978 if (--argc < 1) goto bad; 979 srtp_profiles = *(++argv); 980 } 981 #endif 982 else if (strcmp(*argv,"-keymatexport") == 0) 983 { 984 if (--argc < 1) goto bad; 985 keymatexportlabel= *(++argv); 986 } 987 else if (strcmp(*argv,"-keymatexportlen") == 0) 988 { 989 if (--argc < 1) goto bad; 990 keymatexportlen=atoi(*(++argv)); 991 if (keymatexportlen == 0) goto bad; 992 } 993 else 994 { 995 BIO_printf(bio_err,"unknown option %s\n",*argv); 996 badop=1; 997 break; 998 } 999 argc--; 1000 argv++; 1001 } 1002 if (badop) 1003 { 1004 bad: 1005 sc_usage(); 1006 goto end; 1007 } 1008 1009 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK) 1010 if (jpake_secret) 1011 { 1012 if (psk_key) 1013 { 1014 BIO_printf(bio_err, 1015 "Can't use JPAKE and PSK together\n"); 1016 goto end; 1017 } 1018 psk_identity = "JPAKE"; 1019 if (cipher) 1020 { 1021 BIO_printf(bio_err, "JPAKE sets cipher to PSK\n"); 1022 goto end; 1023 } 1024 cipher = "PSK"; 1025 } 1026 #endif 1027 1028 OpenSSL_add_ssl_algorithms(); 1029 SSL_load_error_strings(); 1030 1031 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1032 next_proto.status = -1; 1033 if (next_proto_neg_in) 1034 { 1035 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in); 1036 if (next_proto.data == NULL) 1037 { 1038 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 1039 goto end; 1040 } 1041 } 1042 else 1043 next_proto.data = NULL; 1044 #endif 1045 1046 #ifndef OPENSSL_NO_ENGINE 1047 e = setup_engine(bio_err, engine_id, 1); 1048 if (ssl_client_engine_id) 1049 { 1050 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id); 1051 if (!ssl_client_engine) 1052 { 1053 BIO_printf(bio_err, 1054 "Error getting client auth engine\n"); 1055 goto end; 1056 } 1057 } 1058 1059 #endif 1060 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) 1061 { 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 1070 if (key_file) 1071 1072 { 1073 1074 key = load_key(bio_err, key_file, key_format, 0, pass, e, 1075 "client certificate private key file"); 1076 if (!key) 1077 { 1078 ERR_print_errors(bio_err); 1079 goto end; 1080 } 1081 1082 } 1083 1084 if (cert_file) 1085 1086 { 1087 cert = load_cert(bio_err,cert_file,cert_format, 1088 NULL, e, "client certificate file"); 1089 1090 if (!cert) 1091 { 1092 ERR_print_errors(bio_err); 1093 goto end; 1094 } 1095 } 1096 1097 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL 1098 && !RAND_status()) 1099 { 1100 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n"); 1101 } 1102 if (inrand != NULL) 1103 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", 1104 app_RAND_load_files(inrand)); 1105 1106 if (bio_c_out == NULL) 1107 { 1108 if (c_quiet && !c_debug && !c_msg) 1109 { 1110 bio_c_out=BIO_new(BIO_s_null()); 1111 } 1112 else 1113 { 1114 if (bio_c_out == NULL) 1115 bio_c_out=BIO_new_fp(stdout,BIO_NOCLOSE); 1116 } 1117 } 1118 1119 #ifndef OPENSSL_NO_SRP 1120 if(!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL)) 1121 { 1122 BIO_printf(bio_err, "Error getting password\n"); 1123 goto end; 1124 } 1125 #endif 1126 1127 ctx=SSL_CTX_new(meth); 1128 if (ctx == NULL) 1129 { 1130 ERR_print_errors(bio_err); 1131 goto end; 1132 } 1133 1134 if (vpm) 1135 SSL_CTX_set1_param(ctx, vpm); 1136 1137 #ifndef OPENSSL_NO_ENGINE 1138 if (ssl_client_engine) 1139 { 1140 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) 1141 { 1142 BIO_puts(bio_err, "Error setting client auth engine\n"); 1143 ERR_print_errors(bio_err); 1144 ENGINE_free(ssl_client_engine); 1145 goto end; 1146 } 1147 ENGINE_free(ssl_client_engine); 1148 } 1149 #endif 1150 1151 #ifndef OPENSSL_NO_PSK 1152 #ifdef OPENSSL_NO_JPAKE 1153 if (psk_key != NULL) 1154 #else 1155 if (psk_key != NULL || jpake_secret) 1156 #endif 1157 { 1158 if (c_debug) 1159 BIO_printf(bio_c_out, "PSK key given or JPAKE in use, setting client callback\n"); 1160 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); 1161 } 1162 #endif 1163 #ifndef OPENSSL_NO_SRTP 1164 if (srtp_profiles != NULL) 1165 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 1166 #endif 1167 if (bugs) 1168 SSL_CTX_set_options(ctx,SSL_OP_ALL|off); 1169 else 1170 SSL_CTX_set_options(ctx,off); 1171 1172 if (clr) 1173 SSL_CTX_clear_options(ctx, clr); 1174 /* DTLS: partial reads end up discarding unread UDP bytes :-( 1175 * Setting read ahead solves this problem. 1176 */ 1177 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1); 1178 1179 #if !defined(OPENSSL_NO_TLSEXT) 1180 # if !defined(OPENSSL_NO_NEXTPROTONEG) 1181 if (next_proto.data) 1182 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 1183 # endif 1184 if (alpn_in) 1185 { 1186 unsigned short alpn_len; 1187 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); 1188 1189 if (alpn == NULL) 1190 { 1191 BIO_printf(bio_err, "Error parsing -alpn argument\n"); 1192 goto end; 1193 } 1194 SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len); 1195 } 1196 #endif 1197 1198 ssl_mode = SSL_CTX_get_mode(ctx); 1199 if (!no_record_splitting) 1200 ssl_mode |= SSL_MODE_CBC_RECORD_SPLITTING; 1201 if (cutthrough) 1202 { 1203 /* Enable handshake cutthrough for client connections using 1204 * strong ciphers. */ 1205 ssl_mode |= SSL_MODE_HANDSHAKE_CUTTHROUGH; 1206 } 1207 SSL_CTX_set_mode(ctx, ssl_mode); 1208 1209 if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback); 1210 if (cipher != NULL) 1211 if(!SSL_CTX_set_cipher_list(ctx,cipher)) { 1212 BIO_printf(bio_err,"error setting cipher list\n"); 1213 ERR_print_errors(bio_err); 1214 goto end; 1215 } 1216 #if 0 1217 else 1218 SSL_CTX_set_cipher_list(ctx,getenv("SSL_CIPHER")); 1219 #endif 1220 1221 SSL_CTX_set_verify(ctx,verify,verify_callback); 1222 if (!set_cert_key_stuff(ctx,cert,key)) 1223 goto end; 1224 1225 if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) || 1226 (!SSL_CTX_set_default_verify_paths(ctx))) 1227 { 1228 /* BIO_printf(bio_err,"error setting default verify locations\n"); */ 1229 ERR_print_errors(bio_err); 1230 /* goto end; */ 1231 } 1232 1233 #ifndef OPENSSL_NO_TLSEXT 1234 if (servername != NULL) 1235 { 1236 tlsextcbp.biodebug = bio_err; 1237 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 1238 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 1239 } 1240 #ifndef OPENSSL_NO_SRP 1241 if (srp_arg.srplogin) 1242 { 1243 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) 1244 { 1245 BIO_printf(bio_err,"Unable to set SRP username\n"); 1246 goto end; 1247 } 1248 srp_arg.msg = c_msg; 1249 srp_arg.debug = c_debug ; 1250 SSL_CTX_set_srp_cb_arg(ctx,&srp_arg); 1251 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); 1252 SSL_CTX_set_srp_strength(ctx, srp_arg.strength); 1253 if (c_msg || c_debug || srp_arg.amp == 0) 1254 SSL_CTX_set_srp_verify_param_callback(ctx, ssl_srp_verify_param_cb); 1255 } 1256 1257 #endif 1258 #endif 1259 1260 con=SSL_new(ctx); 1261 if (sess_in) 1262 { 1263 SSL_SESSION *sess; 1264 BIO *stmp = BIO_new_file(sess_in, "r"); 1265 if (!stmp) 1266 { 1267 BIO_printf(bio_err, "Can't open session file %s\n", 1268 sess_in); 1269 ERR_print_errors(bio_err); 1270 goto end; 1271 } 1272 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 1273 BIO_free(stmp); 1274 if (!sess) 1275 { 1276 BIO_printf(bio_err, "Can't open session file %s\n", 1277 sess_in); 1278 ERR_print_errors(bio_err); 1279 goto end; 1280 } 1281 SSL_set_session(con, sess); 1282 SSL_SESSION_free(sess); 1283 } 1284 1285 if (fallback_scsv) 1286 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); 1287 1288 #ifndef OPENSSL_NO_TLSEXT 1289 if (servername != NULL) 1290 { 1291 if (!SSL_set_tlsext_host_name(con,servername)) 1292 { 1293 BIO_printf(bio_err,"Unable to set TLS servername extension.\n"); 1294 ERR_print_errors(bio_err); 1295 goto end; 1296 } 1297 } 1298 #endif 1299 #ifndef OPENSSL_NO_KRB5 1300 if (con && (kctx = kssl_ctx_new()) != NULL) 1301 { 1302 SSL_set0_kssl_ctx(con, kctx); 1303 kssl_ctx_setstring(kctx, KSSL_SERVER, host); 1304 } 1305 #endif /* OPENSSL_NO_KRB5 */ 1306 /* SSL_set_cipher_list(con,"RC4-MD5"); */ 1307 #if 0 1308 #ifdef TLSEXT_TYPE_opaque_prf_input 1309 SSL_set_tlsext_opaque_prf_input(con, "Test client", 11); 1310 #endif 1311 #endif 1312 1313 re_start: 1314 1315 if (init_client(&s,host,port,socket_type) == 0) 1316 { 1317 BIO_printf(bio_err,"connect:errno=%d\n",get_last_socket_error()); 1318 SHUTDOWN(s); 1319 goto end; 1320 } 1321 BIO_printf(bio_c_out,"CONNECTED(%08X)\n",s); 1322 1323 #ifdef FIONBIO 1324 if (c_nbio) 1325 { 1326 unsigned long l=1; 1327 BIO_printf(bio_c_out,"turning on non blocking io\n"); 1328 if (BIO_socket_ioctl(s,FIONBIO,&l) < 0) 1329 { 1330 ERR_print_errors(bio_err); 1331 goto end; 1332 } 1333 } 1334 #endif 1335 if (c_Pause & 0x01) SSL_set_debug(con, 1); 1336 1337 if ( SSL_version(con) == DTLS1_VERSION) 1338 { 1339 1340 sbio=BIO_new_dgram(s,BIO_NOCLOSE); 1341 if (getsockname(s, &peer, (void *)&peerlen) < 0) 1342 { 1343 BIO_printf(bio_err, "getsockname:errno=%d\n", 1344 get_last_socket_error()); 1345 SHUTDOWN(s); 1346 goto end; 1347 } 1348 1349 (void)BIO_ctrl_set_connected(sbio, 1, &peer); 1350 1351 if (enable_timeouts) 1352 { 1353 timeout.tv_sec = 0; 1354 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 1355 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 1356 1357 timeout.tv_sec = 0; 1358 timeout.tv_usec = DGRAM_SND_TIMEOUT; 1359 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 1360 } 1361 1362 if (socket_mtu > 28) 1363 { 1364 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 1365 SSL_set_mtu(con, socket_mtu - 28); 1366 } 1367 else 1368 /* want to do MTU discovery */ 1369 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 1370 } 1371 else 1372 sbio=BIO_new_socket(s,BIO_NOCLOSE); 1373 1374 if (nbio_test) 1375 { 1376 BIO *test; 1377 1378 test=BIO_new(BIO_f_nbio_test()); 1379 sbio=BIO_push(test,sbio); 1380 } 1381 1382 if (c_debug) 1383 { 1384 SSL_set_debug(con, 1); 1385 BIO_set_callback(sbio,bio_dump_callback); 1386 BIO_set_callback_arg(sbio,(char *)bio_c_out); 1387 } 1388 if (c_msg) 1389 { 1390 SSL_set_msg_callback(con, msg_cb); 1391 SSL_set_msg_callback_arg(con, bio_c_out); 1392 } 1393 #ifndef OPENSSL_NO_TLSEXT 1394 if (c_tlsextdebug) 1395 { 1396 SSL_set_tlsext_debug_callback(con, tlsext_cb); 1397 SSL_set_tlsext_debug_arg(con, bio_c_out); 1398 } 1399 if (c_status_req) 1400 { 1401 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 1402 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 1403 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 1404 #if 0 1405 { 1406 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null(); 1407 OCSP_RESPID *id = OCSP_RESPID_new(); 1408 id->value.byKey = ASN1_OCTET_STRING_new(); 1409 id->type = V_OCSP_RESPID_KEY; 1410 ASN1_STRING_set(id->value.byKey, "Hello World", -1); 1411 sk_OCSP_RESPID_push(ids, id); 1412 SSL_set_tlsext_status_ids(con, ids); 1413 } 1414 #endif 1415 } 1416 #endif 1417 #ifndef OPENSSL_NO_JPAKE 1418 if (jpake_secret) 1419 jpake_client_auth(bio_c_out, sbio, jpake_secret); 1420 #endif 1421 1422 SSL_set_bio(con,sbio,sbio); 1423 SSL_set_connect_state(con); 1424 1425 /* ok, lets connect */ 1426 width=SSL_get_fd(con)+1; 1427 1428 read_tty=1; 1429 write_tty=0; 1430 tty_on=0; 1431 read_ssl=1; 1432 write_ssl=1; 1433 1434 cbuf_len=0; 1435 cbuf_off=0; 1436 sbuf_len=0; 1437 sbuf_off=0; 1438 1439 /* This is an ugly hack that does a lot of assumptions */ 1440 /* We do have to handle multi-line responses which may come 1441 in a single packet or not. We therefore have to use 1442 BIO_gets() which does need a buffering BIO. So during 1443 the initial chitchat we do push a buffering BIO into the 1444 chain that is removed again later on to not disturb the 1445 rest of the s_client operation. */ 1446 if (starttls_proto == PROTO_SMTP) 1447 { 1448 int foundit=0; 1449 BIO *fbio = BIO_new(BIO_f_buffer()); 1450 BIO_push(fbio, sbio); 1451 /* wait for multi-line response to end from SMTP */ 1452 do 1453 { 1454 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ); 1455 } 1456 while (mbuf_len>3 && mbuf[3]=='-'); 1457 /* STARTTLS command requires EHLO... */ 1458 BIO_printf(fbio,"EHLO openssl.client.net\r\n"); 1459 (void)BIO_flush(fbio); 1460 /* wait for multi-line response to end EHLO SMTP response */ 1461 do 1462 { 1463 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ); 1464 if (strstr(mbuf,"STARTTLS")) 1465 foundit=1; 1466 } 1467 while (mbuf_len>3 && mbuf[3]=='-'); 1468 (void)BIO_flush(fbio); 1469 BIO_pop(fbio); 1470 BIO_free(fbio); 1471 if (!foundit) 1472 BIO_printf(bio_err, 1473 "didn't found starttls in server response," 1474 " try anyway...\n"); 1475 BIO_printf(sbio,"STARTTLS\r\n"); 1476 BIO_read(sbio,sbuf,BUFSIZZ); 1477 } 1478 else if (starttls_proto == PROTO_POP3) 1479 { 1480 BIO_read(sbio,mbuf,BUFSIZZ); 1481 BIO_printf(sbio,"STLS\r\n"); 1482 BIO_read(sbio,sbuf,BUFSIZZ); 1483 } 1484 else if (starttls_proto == PROTO_IMAP) 1485 { 1486 int foundit=0; 1487 BIO *fbio = BIO_new(BIO_f_buffer()); 1488 BIO_push(fbio, sbio); 1489 BIO_gets(fbio,mbuf,BUFSIZZ); 1490 /* STARTTLS command requires CAPABILITY... */ 1491 BIO_printf(fbio,". CAPABILITY\r\n"); 1492 (void)BIO_flush(fbio); 1493 /* wait for multi-line CAPABILITY response */ 1494 do 1495 { 1496 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ); 1497 if (strstr(mbuf,"STARTTLS")) 1498 foundit=1; 1499 } 1500 while (mbuf_len>3 && mbuf[0]!='.'); 1501 (void)BIO_flush(fbio); 1502 BIO_pop(fbio); 1503 BIO_free(fbio); 1504 if (!foundit) 1505 BIO_printf(bio_err, 1506 "didn't found STARTTLS in server response," 1507 " try anyway...\n"); 1508 BIO_printf(sbio,". STARTTLS\r\n"); 1509 BIO_read(sbio,sbuf,BUFSIZZ); 1510 } 1511 else if (starttls_proto == PROTO_FTP) 1512 { 1513 BIO *fbio = BIO_new(BIO_f_buffer()); 1514 BIO_push(fbio, sbio); 1515 /* wait for multi-line response to end from FTP */ 1516 do 1517 { 1518 mbuf_len = BIO_gets(fbio,mbuf,BUFSIZZ); 1519 } 1520 while (mbuf_len>3 && mbuf[3]=='-'); 1521 (void)BIO_flush(fbio); 1522 BIO_pop(fbio); 1523 BIO_free(fbio); 1524 BIO_printf(sbio,"AUTH TLS\r\n"); 1525 BIO_read(sbio,sbuf,BUFSIZZ); 1526 } 1527 if (starttls_proto == PROTO_XMPP) 1528 { 1529 int seen = 0; 1530 BIO_printf(sbio,"<stream:stream " 1531 "xmlns:stream='http://etherx.jabber.org/streams' " 1532 "xmlns='jabber:client' to='%s' version='1.0'>", host); 1533 seen = BIO_read(sbio,mbuf,BUFSIZZ); 1534 mbuf[seen] = 0; 1535 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) 1536 { 1537 if (strstr(mbuf, "/stream:features>")) 1538 goto shut; 1539 seen = BIO_read(sbio,mbuf,BUFSIZZ); 1540 mbuf[seen] = 0; 1541 } 1542 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 1543 seen = BIO_read(sbio,sbuf,BUFSIZZ); 1544 sbuf[seen] = 0; 1545 if (!strstr(sbuf, "<proceed")) 1546 goto shut; 1547 mbuf[0] = 0; 1548 } 1549 1550 for (;;) 1551 { 1552 FD_ZERO(&readfds); 1553 FD_ZERO(&writefds); 1554 1555 if ((SSL_version(con) == DTLS1_VERSION) && 1556 DTLSv1_get_timeout(con, &timeout)) 1557 timeoutp = &timeout; 1558 else 1559 timeoutp = NULL; 1560 1561 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) 1562 { 1563 in_init=1; 1564 tty_on=0; 1565 } 1566 else 1567 { 1568 tty_on=1; 1569 if (in_init) 1570 { 1571 in_init=0; 1572 #if 0 /* This test doesn't really work as intended (needs to be fixed) */ 1573 #ifndef OPENSSL_NO_TLSEXT 1574 if (servername != NULL && !SSL_session_reused(con)) 1575 { 1576 BIO_printf(bio_c_out,"Server did %sacknowledge servername extension.\n",tlsextcbp.ack?"":"not "); 1577 } 1578 #endif 1579 #endif 1580 if (sess_out) 1581 { 1582 BIO *stmp = BIO_new_file(sess_out, "w"); 1583 if (stmp) 1584 { 1585 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 1586 BIO_free(stmp); 1587 } 1588 else 1589 BIO_printf(bio_err, "Error writing session file %s\n", sess_out); 1590 } 1591 print_stuff(bio_c_out,con,full_log); 1592 if (full_log > 0) full_log--; 1593 1594 if (starttls_proto) 1595 { 1596 BIO_printf(bio_err,"%s",mbuf); 1597 /* We don't need to know any more */ 1598 starttls_proto = PROTO_OFF; 1599 } 1600 1601 if (reconnect) 1602 { 1603 reconnect--; 1604 BIO_printf(bio_c_out,"drop connection and then reconnect\n"); 1605 SSL_shutdown(con); 1606 SSL_set_connect_state(con); 1607 SHUTDOWN(SSL_get_fd(con)); 1608 goto re_start; 1609 } 1610 } 1611 } 1612 1613 ssl_pending = read_ssl && SSL_pending(con); 1614 1615 if (!ssl_pending) 1616 { 1617 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5) 1618 if (tty_on) 1619 { 1620 if (read_tty) openssl_fdset(fileno(stdin),&readfds); 1621 if (write_tty) openssl_fdset(fileno(stdout),&writefds); 1622 } 1623 if (read_ssl) 1624 openssl_fdset(SSL_get_fd(con),&readfds); 1625 if (write_ssl) 1626 openssl_fdset(SSL_get_fd(con),&writefds); 1627 #else 1628 if(!tty_on || !write_tty) { 1629 if (read_ssl) 1630 openssl_fdset(SSL_get_fd(con),&readfds); 1631 if (write_ssl) 1632 openssl_fdset(SSL_get_fd(con),&writefds); 1633 } 1634 #endif 1635 /* printf("mode tty(%d %d%d) ssl(%d%d)\n", 1636 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1637 1638 /* Note: under VMS with SOCKETSHR the second parameter 1639 * is currently of type (int *) whereas under other 1640 * systems it is (void *) if you don't have a cast it 1641 * will choke the compiler: if you do have a cast then 1642 * you can either go for (int *) or (void *). 1643 */ 1644 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1645 /* Under Windows/DOS we make the assumption that we can 1646 * always write to the tty: therefore if we need to 1647 * write to the tty we just fall through. Otherwise 1648 * we timeout the select every second and see if there 1649 * are any keypresses. Note: this is a hack, in a proper 1650 * Windows application we wouldn't do this. 1651 */ 1652 i=0; 1653 if(!write_tty) { 1654 if(read_tty) { 1655 tv.tv_sec = 1; 1656 tv.tv_usec = 0; 1657 i=select(width,(void *)&readfds,(void *)&writefds, 1658 NULL,&tv); 1659 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1660 if(!i && (!_kbhit() || !read_tty) ) continue; 1661 #else 1662 if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue; 1663 #endif 1664 } else i=select(width,(void *)&readfds,(void *)&writefds, 1665 NULL,timeoutp); 1666 } 1667 #elif defined(OPENSSL_SYS_NETWARE) 1668 if(!write_tty) { 1669 if(read_tty) { 1670 tv.tv_sec = 1; 1671 tv.tv_usec = 0; 1672 i=select(width,(void *)&readfds,(void *)&writefds, 1673 NULL,&tv); 1674 } else i=select(width,(void *)&readfds,(void *)&writefds, 1675 NULL,timeoutp); 1676 } 1677 #elif defined(OPENSSL_SYS_BEOS_R5) 1678 /* Under BeOS-R5 the situation is similar to DOS */ 1679 i=0; 1680 stdin_set = 0; 1681 (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK); 1682 if(!write_tty) { 1683 if(read_tty) { 1684 tv.tv_sec = 1; 1685 tv.tv_usec = 0; 1686 i=select(width,(void *)&readfds,(void *)&writefds, 1687 NULL,&tv); 1688 if (read(fileno(stdin), sbuf, 0) >= 0) 1689 stdin_set = 1; 1690 if (!i && (stdin_set != 1 || !read_tty)) 1691 continue; 1692 } else i=select(width,(void *)&readfds,(void *)&writefds, 1693 NULL,timeoutp); 1694 } 1695 (void)fcntl(fileno(stdin), F_SETFL, 0); 1696 #else 1697 i=select(width,(void *)&readfds,(void *)&writefds, 1698 NULL,timeoutp); 1699 #endif 1700 if ( i < 0) 1701 { 1702 BIO_printf(bio_err,"bad select %d\n", 1703 get_last_socket_error()); 1704 goto shut; 1705 /* goto end; */ 1706 } 1707 } 1708 1709 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) 1710 { 1711 BIO_printf(bio_err,"TIMEOUT occured\n"); 1712 } 1713 1714 if (!ssl_pending && FD_ISSET(SSL_get_fd(con),&writefds)) 1715 { 1716 k=SSL_write(con,&(cbuf[cbuf_off]), 1717 (unsigned int)cbuf_len); 1718 switch (SSL_get_error(con,k)) 1719 { 1720 case SSL_ERROR_NONE: 1721 cbuf_off+=k; 1722 cbuf_len-=k; 1723 if (k <= 0) goto end; 1724 /* we have done a write(con,NULL,0); */ 1725 if (cbuf_len <= 0) 1726 { 1727 read_tty=1; 1728 write_ssl=0; 1729 } 1730 else /* if (cbuf_len > 0) */ 1731 { 1732 read_tty=0; 1733 write_ssl=1; 1734 } 1735 break; 1736 case SSL_ERROR_WANT_WRITE: 1737 BIO_printf(bio_c_out,"write W BLOCK\n"); 1738 write_ssl=1; 1739 read_tty=0; 1740 break; 1741 case SSL_ERROR_WANT_READ: 1742 BIO_printf(bio_c_out,"write R BLOCK\n"); 1743 write_tty=0; 1744 read_ssl=1; 1745 write_ssl=0; 1746 break; 1747 case SSL_ERROR_WANT_X509_LOOKUP: 1748 BIO_printf(bio_c_out,"write X BLOCK\n"); 1749 break; 1750 case SSL_ERROR_ZERO_RETURN: 1751 if (cbuf_len != 0) 1752 { 1753 BIO_printf(bio_c_out,"shutdown\n"); 1754 ret = 0; 1755 goto shut; 1756 } 1757 else 1758 { 1759 read_tty=1; 1760 write_ssl=0; 1761 break; 1762 } 1763 1764 case SSL_ERROR_SYSCALL: 1765 if ((k != 0) || (cbuf_len != 0)) 1766 { 1767 BIO_printf(bio_err,"write:errno=%d\n", 1768 get_last_socket_error()); 1769 goto shut; 1770 } 1771 else 1772 { 1773 read_tty=1; 1774 write_ssl=0; 1775 } 1776 break; 1777 case SSL_ERROR_SSL: 1778 ERR_print_errors(bio_err); 1779 goto shut; 1780 } 1781 } 1782 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5) 1783 /* Assume Windows/DOS/BeOS can always write */ 1784 else if (!ssl_pending && write_tty) 1785 #else 1786 else if (!ssl_pending && FD_ISSET(fileno(stdout),&writefds)) 1787 #endif 1788 { 1789 #ifdef CHARSET_EBCDIC 1790 ascii2ebcdic(&(sbuf[sbuf_off]),&(sbuf[sbuf_off]),sbuf_len); 1791 #endif 1792 i=raw_write_stdout(&(sbuf[sbuf_off]),sbuf_len); 1793 1794 if (i <= 0) 1795 { 1796 BIO_printf(bio_c_out,"DONE\n"); 1797 ret = 0; 1798 goto shut; 1799 /* goto end; */ 1800 } 1801 1802 sbuf_len-=i;; 1803 sbuf_off+=i; 1804 if (sbuf_len <= 0) 1805 { 1806 read_ssl=1; 1807 write_tty=0; 1808 } 1809 } 1810 else if (ssl_pending || FD_ISSET(SSL_get_fd(con),&readfds)) 1811 { 1812 #ifdef RENEG 1813 { static int iiii; if (++iiii == 52) { SSL_renegotiate(con); iiii=0; } } 1814 #endif 1815 #if 1 1816 k=SSL_read(con,sbuf,1024 /* BUFSIZZ */ ); 1817 #else 1818 /* Demo for pending and peek :-) */ 1819 k=SSL_read(con,sbuf,16); 1820 { char zbuf[10240]; 1821 printf("read=%d pending=%d peek=%d\n",k,SSL_pending(con),SSL_peek(con,zbuf,10240)); 1822 } 1823 #endif 1824 1825 switch (SSL_get_error(con,k)) 1826 { 1827 case SSL_ERROR_NONE: 1828 if (k <= 0) 1829 goto end; 1830 sbuf_off=0; 1831 sbuf_len=k; 1832 1833 read_ssl=0; 1834 write_tty=1; 1835 break; 1836 case SSL_ERROR_WANT_WRITE: 1837 BIO_printf(bio_c_out,"read W BLOCK\n"); 1838 write_ssl=1; 1839 read_tty=0; 1840 break; 1841 case SSL_ERROR_WANT_READ: 1842 BIO_printf(bio_c_out,"read R BLOCK\n"); 1843 write_tty=0; 1844 read_ssl=1; 1845 if ((read_tty == 0) && (write_ssl == 0)) 1846 write_ssl=1; 1847 break; 1848 case SSL_ERROR_WANT_X509_LOOKUP: 1849 BIO_printf(bio_c_out,"read X BLOCK\n"); 1850 break; 1851 case SSL_ERROR_SYSCALL: 1852 ret=get_last_socket_error(); 1853 BIO_printf(bio_err,"read:errno=%d\n",ret); 1854 goto shut; 1855 case SSL_ERROR_ZERO_RETURN: 1856 BIO_printf(bio_c_out,"closed\n"); 1857 ret=0; 1858 goto shut; 1859 case SSL_ERROR_SSL: 1860 ERR_print_errors(bio_err); 1861 goto shut; 1862 /* break; */ 1863 } 1864 } 1865 1866 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) 1867 #if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS) 1868 else if (_kbhit()) 1869 #else 1870 else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) 1871 #endif 1872 #elif defined (OPENSSL_SYS_NETWARE) 1873 else if (_kbhit()) 1874 #elif defined(OPENSSL_SYS_BEOS_R5) 1875 else if (stdin_set) 1876 #else 1877 else if (FD_ISSET(fileno(stdin),&readfds)) 1878 #endif 1879 { 1880 if (crlf) 1881 { 1882 int j, lf_num; 1883 1884 i=raw_read_stdin(cbuf,BUFSIZZ/2); 1885 lf_num = 0; 1886 /* both loops are skipped when i <= 0 */ 1887 for (j = 0; j < i; j++) 1888 if (cbuf[j] == '\n') 1889 lf_num++; 1890 for (j = i-1; j >= 0; j--) 1891 { 1892 cbuf[j+lf_num] = cbuf[j]; 1893 if (cbuf[j] == '\n') 1894 { 1895 lf_num--; 1896 i++; 1897 cbuf[j+lf_num] = '\r'; 1898 } 1899 } 1900 assert(lf_num == 0); 1901 } 1902 else 1903 i=raw_read_stdin(cbuf,BUFSIZZ); 1904 1905 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) 1906 { 1907 BIO_printf(bio_err,"DONE\n"); 1908 ret=0; 1909 goto shut; 1910 } 1911 1912 if ((!c_ign_eof) && (cbuf[0] == 'R')) 1913 { 1914 BIO_printf(bio_err,"RENEGOTIATING\n"); 1915 SSL_renegotiate(con); 1916 cbuf_len=0; 1917 } 1918 #ifndef OPENSSL_NO_HEARTBEATS 1919 else if ((!c_ign_eof) && (cbuf[0] == 'B')) 1920 { 1921 BIO_printf(bio_err,"HEARTBEATING\n"); 1922 SSL_heartbeat(con); 1923 cbuf_len=0; 1924 } 1925 #endif 1926 else 1927 { 1928 cbuf_len=i; 1929 cbuf_off=0; 1930 #ifdef CHARSET_EBCDIC 1931 ebcdic2ascii(cbuf, cbuf, i); 1932 #endif 1933 } 1934 1935 write_ssl=1; 1936 read_tty=0; 1937 } 1938 } 1939 1940 ret=0; 1941 shut: 1942 if (in_init) 1943 print_stuff(bio_c_out,con,full_log); 1944 SSL_shutdown(con); 1945 SHUTDOWN(SSL_get_fd(con)); 1946 end: 1947 if (con != NULL) 1948 { 1949 if (prexit != 0) 1950 print_stuff(bio_c_out,con,1); 1951 SSL_free(con); 1952 } 1953 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) 1954 if (next_proto.data) 1955 OPENSSL_free(next_proto.data); 1956 #endif 1957 if (ctx != NULL) SSL_CTX_free(ctx); 1958 if (cert) 1959 X509_free(cert); 1960 if (key) 1961 EVP_PKEY_free(key); 1962 if (pass) 1963 OPENSSL_free(pass); 1964 if (vpm) 1965 X509_VERIFY_PARAM_free(vpm); 1966 if (cbuf != NULL) { OPENSSL_cleanse(cbuf,BUFSIZZ); OPENSSL_free(cbuf); } 1967 if (sbuf != NULL) { OPENSSL_cleanse(sbuf,BUFSIZZ); OPENSSL_free(sbuf); } 1968 if (mbuf != NULL) { OPENSSL_cleanse(mbuf,BUFSIZZ); OPENSSL_free(mbuf); } 1969 if (bio_c_out != NULL) 1970 { 1971 BIO_free(bio_c_out); 1972 bio_c_out=NULL; 1973 } 1974 apps_shutdown(); 1975 OPENSSL_EXIT(ret); 1976 } 1977 1978 1979 static void print_stuff(BIO *bio, SSL *s, int full) 1980 { 1981 X509 *peer=NULL; 1982 char *p; 1983 static const char *space=" "; 1984 char buf[BUFSIZ]; 1985 STACK_OF(X509) *sk; 1986 STACK_OF(X509_NAME) *sk2; 1987 const SSL_CIPHER *c; 1988 X509_NAME *xn; 1989 int j,i; 1990 #ifndef OPENSSL_NO_COMP 1991 const COMP_METHOD *comp, *expansion; 1992 #endif 1993 unsigned char *exportedkeymat; 1994 1995 if (full) 1996 { 1997 int got_a_chain = 0; 1998 1999 sk=SSL_get_peer_cert_chain(s); 2000 if (sk != NULL) 2001 { 2002 got_a_chain = 1; /* we don't have it for SSL2 (yet) */ 2003 2004 BIO_printf(bio,"---\nCertificate chain\n"); 2005 for (i=0; i<sk_X509_num(sk); i++) 2006 { 2007 X509_NAME_oneline(X509_get_subject_name( 2008 sk_X509_value(sk,i)),buf,sizeof buf); 2009 BIO_printf(bio,"%2d s:%s\n",i,buf); 2010 X509_NAME_oneline(X509_get_issuer_name( 2011 sk_X509_value(sk,i)),buf,sizeof buf); 2012 BIO_printf(bio," i:%s\n",buf); 2013 if (c_showcerts) 2014 PEM_write_bio_X509(bio,sk_X509_value(sk,i)); 2015 } 2016 } 2017 2018 BIO_printf(bio,"---\n"); 2019 peer=SSL_get_peer_certificate(s); 2020 if (peer != NULL) 2021 { 2022 BIO_printf(bio,"Server certificate\n"); 2023 if (!(c_showcerts && got_a_chain)) /* Redundant if we showed the whole chain */ 2024 PEM_write_bio_X509(bio,peer); 2025 X509_NAME_oneline(X509_get_subject_name(peer), 2026 buf,sizeof buf); 2027 BIO_printf(bio,"subject=%s\n",buf); 2028 X509_NAME_oneline(X509_get_issuer_name(peer), 2029 buf,sizeof buf); 2030 BIO_printf(bio,"issuer=%s\n",buf); 2031 } 2032 else 2033 BIO_printf(bio,"no peer certificate available\n"); 2034 2035 sk2=SSL_get_client_CA_list(s); 2036 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) 2037 { 2038 BIO_printf(bio,"---\nAcceptable client certificate CA names\n"); 2039 for (i=0; i<sk_X509_NAME_num(sk2); i++) 2040 { 2041 xn=sk_X509_NAME_value(sk2,i); 2042 X509_NAME_oneline(xn,buf,sizeof(buf)); 2043 BIO_write(bio,buf,strlen(buf)); 2044 BIO_write(bio,"\n",1); 2045 } 2046 } 2047 else 2048 { 2049 BIO_printf(bio,"---\nNo client certificate CA names sent\n"); 2050 } 2051 p=SSL_get_shared_ciphers(s,buf,sizeof buf); 2052 if (p != NULL) 2053 { 2054 /* This works only for SSL 2. In later protocol 2055 * versions, the client does not know what other 2056 * ciphers (in addition to the one to be used 2057 * in the current connection) the server supports. */ 2058 2059 BIO_printf(bio,"---\nCiphers common between both SSL endpoints:\n"); 2060 j=i=0; 2061 while (*p) 2062 { 2063 if (*p == ':') 2064 { 2065 BIO_write(bio,space,15-j%25); 2066 i++; 2067 j=0; 2068 BIO_write(bio,((i%3)?" ":"\n"),1); 2069 } 2070 else 2071 { 2072 BIO_write(bio,p,1); 2073 j++; 2074 } 2075 p++; 2076 } 2077 BIO_write(bio,"\n",1); 2078 } 2079 2080 BIO_printf(bio,"---\nSSL handshake has read %ld bytes and written %ld bytes\n", 2081 BIO_number_read(SSL_get_rbio(s)), 2082 BIO_number_written(SSL_get_wbio(s))); 2083 } 2084 BIO_printf(bio,(SSL_cache_hit(s)?"---\nReused, ":"---\nNew, ")); 2085 c=SSL_get_current_cipher(s); 2086 BIO_printf(bio,"%s, Cipher is %s\n", 2087 SSL_CIPHER_get_version(c), 2088 SSL_CIPHER_get_name(c)); 2089 if (peer != NULL) { 2090 EVP_PKEY *pktmp; 2091 pktmp = X509_get_pubkey(peer); 2092 BIO_printf(bio,"Server public key is %d bit\n", 2093 EVP_PKEY_bits(pktmp)); 2094 EVP_PKEY_free(pktmp); 2095 } 2096 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 2097 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 2098 #ifndef OPENSSL_NO_COMP 2099 comp=SSL_get_current_compression(s); 2100 expansion=SSL_get_current_expansion(s); 2101 BIO_printf(bio,"Compression: %s\n", 2102 comp ? SSL_COMP_get_name(comp) : "NONE"); 2103 BIO_printf(bio,"Expansion: %s\n", 2104 expansion ? SSL_COMP_get_name(expansion) : "NONE"); 2105 #endif 2106 2107 #ifdef SSL_DEBUG 2108 { 2109 /* Print out local port of connection: useful for debugging */ 2110 int sock; 2111 struct sockaddr_in ladd; 2112 socklen_t ladd_size = sizeof(ladd); 2113 sock = SSL_get_fd(s); 2114 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size); 2115 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); 2116 } 2117 #endif 2118 2119 #if !defined(OPENSSL_NO_TLSEXT) 2120 # if !defined(OPENSSL_NO_NEXTPROTONEG) 2121 if (next_proto.status != -1) { 2122 const unsigned char *proto; 2123 unsigned int proto_len; 2124 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 2125 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 2126 BIO_write(bio, proto, proto_len); 2127 BIO_write(bio, "\n", 1); 2128 } 2129 { 2130 const unsigned char *proto; 2131 unsigned int proto_len; 2132 SSL_get0_alpn_selected(s, &proto, &proto_len); 2133 if (proto_len > 0) 2134 { 2135 BIO_printf(bio, "ALPN protocol: "); 2136 BIO_write(bio, proto, proto_len); 2137 BIO_write(bio, "\n", 1); 2138 } 2139 else 2140 BIO_printf(bio, "No ALPN negotiated\n"); 2141 } 2142 # endif 2143 #endif 2144 2145 #ifndef OPENSSL_NO_SRTP 2146 { 2147 SRTP_PROTECTION_PROFILE *srtp_profile=SSL_get_selected_srtp_profile(s); 2148 2149 if(srtp_profile) 2150 BIO_printf(bio,"SRTP Extension negotiated, profile=%s\n", 2151 srtp_profile->name); 2152 } 2153 #endif 2154 2155 SSL_SESSION_print(bio,SSL_get_session(s)); 2156 if (keymatexportlabel != NULL) 2157 { 2158 BIO_printf(bio, "Keying material exporter:\n"); 2159 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 2160 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 2161 exportedkeymat = OPENSSL_malloc(keymatexportlen); 2162 if (exportedkeymat != NULL) 2163 { 2164 if (!SSL_export_keying_material(s, exportedkeymat, 2165 keymatexportlen, 2166 keymatexportlabel, 2167 strlen(keymatexportlabel), 2168 NULL, 0, 0)) 2169 { 2170 BIO_printf(bio, " Error\n"); 2171 } 2172 else 2173 { 2174 BIO_printf(bio, " Keying material: "); 2175 for (i=0; i<keymatexportlen; i++) 2176 BIO_printf(bio, "%02X", 2177 exportedkeymat[i]); 2178 BIO_printf(bio, "\n"); 2179 } 2180 OPENSSL_free(exportedkeymat); 2181 } 2182 } 2183 BIO_printf(bio,"---\n"); 2184 if (peer != NULL) 2185 X509_free(peer); 2186 /* flush, or debugging output gets mixed with http response */ 2187 (void)BIO_flush(bio); 2188 } 2189 2190 #ifndef OPENSSL_NO_TLSEXT 2191 2192 static int ocsp_resp_cb(SSL *s, void *arg) 2193 { 2194 const unsigned char *p; 2195 int len; 2196 OCSP_RESPONSE *rsp; 2197 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 2198 BIO_puts(arg, "OCSP response: "); 2199 if (!p) 2200 { 2201 BIO_puts(arg, "no response sent\n"); 2202 return 1; 2203 } 2204 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 2205 if (!rsp) 2206 { 2207 BIO_puts(arg, "response parse error\n"); 2208 BIO_dump_indent(arg, (char *)p, len, 4); 2209 return 0; 2210 } 2211 BIO_puts(arg, "\n======================================\n"); 2212 OCSP_RESPONSE_print(arg, rsp, 0); 2213 BIO_puts(arg, "======================================\n"); 2214 OCSP_RESPONSE_free(rsp); 2215 return 1; 2216 } 2217 2218 #endif 2219
