1 /* $OpenBSD: s_client.c,v 1.37 2018/11/14 06:24:21 tb Exp $ */ 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 <sys/types.h> 139 #include <sys/socket.h> 140 141 #include <netinet/in.h> 142 143 #include <assert.h> 144 #include <ctype.h> 145 #include <limits.h> 146 #include <netdb.h> 147 #include <stdio.h> 148 #include <stdlib.h> 149 #include <string.h> 150 #include <unistd.h> 151 #include <poll.h> 152 153 #include "apps.h" 154 155 #include <openssl/bn.h> 156 #include <openssl/err.h> 157 #include <openssl/ocsp.h> 158 #include <openssl/pem.h> 159 #include <openssl/ssl.h> 160 #include <openssl/x509.h> 161 162 #include "s_apps.h" 163 #include "timeouts.h" 164 165 /*#define SSL_HOST_NAME "www.netscape.com" */ 166 /*#define SSL_HOST_NAME "193.118.187.102" */ 167 #define SSL_HOST_NAME "localhost" 168 169 /*#define TEST_CERT "client.pem" *//* no default cert. */ 170 171 #define BUFSIZZ 1024*8 172 173 static int c_nbio = 0; 174 static int c_Pause = 0; 175 static int c_debug = 0; 176 static int c_tlsextdebug = 0; 177 static int c_status_req = 0; 178 static int c_msg = 0; 179 static int c_showcerts = 0; 180 181 static char *keymatexportlabel = NULL; 182 static int keymatexportlen = 20; 183 184 static void sc_usage(void); 185 static void print_stuff(BIO * berr, SSL * con, int full); 186 static int ocsp_resp_cb(SSL * s, void *arg); 187 static BIO *bio_c_out = NULL; 188 static int c_quiet = 0; 189 static int c_ign_eof = 0; 190 191 192 static void 193 sc_usage(void) 194 { 195 BIO_printf(bio_err, "usage: s_client args\n"); 196 BIO_printf(bio_err, "\n"); 197 BIO_printf(bio_err, " -4 - Force IPv4\n"); 198 BIO_printf(bio_err, " -6 - Force IPv6\n"); 199 BIO_printf(bio_err, " -host host - use -connect instead\n"); 200 BIO_printf(bio_err, " -port port - use -connect instead\n"); 201 BIO_printf(bio_err, " -connect host:port - who to connect to (default is %s:%s)\n", SSL_HOST_NAME, PORT_STR); 202 BIO_printf(bio_err, " -proxy host:port - connect to http proxy\n"); 203 204 BIO_printf(bio_err, " -verify arg - turn on peer certificate verification\n"); 205 BIO_printf(bio_err, " -cert arg - certificate file to use, PEM format assumed\n"); 206 BIO_printf(bio_err, " -certform arg - certificate format (PEM or DER) PEM default\n"); 207 BIO_printf(bio_err, " -key arg - Private key file to use, in cert file if\n"); 208 BIO_printf(bio_err, " not specified but cert file is.\n"); 209 BIO_printf(bio_err, " -keyform arg - key format (PEM or DER) PEM default\n"); 210 BIO_printf(bio_err, " -pass arg - private key file pass phrase source\n"); 211 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n"); 212 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n"); 213 BIO_printf(bio_err, " -reconnect - Drop and re-make the connection with the same Session-ID\n"); 214 BIO_printf(bio_err, " -pause - sleep(1) after each read(2) and write(2) system call\n"); 215 BIO_printf(bio_err, " -showcerts - show all certificates in the chain\n"); 216 BIO_printf(bio_err, " -debug - extra output\n"); 217 BIO_printf(bio_err, " -msg - Show protocol messages\n"); 218 BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n"); 219 BIO_printf(bio_err, " -state - print the 'ssl' states\n"); 220 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n"); 221 BIO_printf(bio_err, " -crlf - convert LF from terminal into CRLF\n"); 222 BIO_printf(bio_err, " -quiet - no s_client output\n"); 223 BIO_printf(bio_err, " -ign_eof - ignore input eof (default when -quiet)\n"); 224 BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n"); 225 BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n"); 226 BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n"); 227 BIO_printf(bio_err, " -tls1 - just use TLSv1\n"); 228 BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n"); 229 BIO_printf(bio_err, " -mtu - set the link layer MTU\n"); 230 BIO_printf(bio_err, " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n"); 231 BIO_printf(bio_err, " -bugs - Switch on all SSL implementation bug workarounds\n"); 232 BIO_printf(bio_err, " -cipher - preferred cipher to use, use the 'openssl ciphers'\n"); 233 BIO_printf(bio_err, " command to see what is available\n"); 234 BIO_printf(bio_err, " -starttls prot - use the STARTTLS command before starting TLS\n"); 235 BIO_printf(bio_err, " for those protocols that support it, where\n"); 236 BIO_printf(bio_err, " 'prot' defines which one to assume. Currently,\n"); 237 BIO_printf(bio_err, " only \"smtp\", \"lmtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n"); 238 BIO_printf(bio_err, " are supported.\n"); 239 BIO_printf(bio_err, " -xmpphost host - connect to this virtual host on the xmpp server\n"); 240 BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n"); 241 BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n"); 242 BIO_printf(bio_err, " -servername host - Set TLS extension servername in ClientHello\n"); 243 BIO_printf(bio_err, " -tlsextdebug - hex dump of all TLS extensions received\n"); 244 BIO_printf(bio_err, " -status - request certificate status from server\n"); 245 BIO_printf(bio_err, " -no_ticket - disable use of RFC4507bis session tickets\n"); 246 BIO_printf(bio_err, " -alpn arg - enable ALPN extension, considering named protocols supported (comma-separated list)\n"); 247 BIO_printf(bio_err, " -groups arg - specify EC curve groups (colon-separated list)\n"); 248 #ifndef OPENSSL_NO_SRTP 249 BIO_printf(bio_err, " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n"); 250 #endif 251 BIO_printf(bio_err, " -keymatexport label - Export keying material using label\n"); 252 BIO_printf(bio_err, " -keymatexportlen len - Export len bytes of keying material (default 20)\n"); 253 } 254 255 256 /* This is a context that we pass to callbacks */ 257 typedef struct tlsextctx_st { 258 BIO *biodebug; 259 int ack; 260 } tlsextctx; 261 262 263 static int 264 ssl_servername_cb(SSL * s, int *ad, void *arg) 265 { 266 tlsextctx *p = (tlsextctx *) arg; 267 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); 268 if (SSL_get_servername_type(s) != -1) 269 p->ack = !SSL_session_reused(s) && hn != NULL; 270 else 271 BIO_printf(bio_err, "Can't use SSL_get_servername\n"); 272 273 return SSL_TLSEXT_ERR_OK; 274 } 275 276 #ifndef OPENSSL_NO_SRTP 277 char *srtp_profiles = NULL; 278 #endif 279 280 enum { 281 PROTO_OFF = 0, 282 PROTO_SMTP, 283 PROTO_LMTP, 284 PROTO_POP3, 285 PROTO_IMAP, 286 PROTO_FTP, 287 PROTO_XMPP 288 }; 289 290 int 291 s_client_main(int argc, char **argv) 292 { 293 unsigned int off = 0, clr = 0; 294 SSL *con = NULL; 295 int s, k, state = 0, af = AF_UNSPEC; 296 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL; 297 int cbuf_len, cbuf_off; 298 int sbuf_len, sbuf_off; 299 char *port = PORT_STR; 300 int full_log = 1; 301 char *host = SSL_HOST_NAME; 302 char *xmpphost = NULL; 303 char *proxy = NULL, *connect = NULL; 304 char *cert_file = NULL, *key_file = NULL; 305 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 306 char *passarg = NULL, *pass = NULL; 307 X509 *cert = NULL; 308 EVP_PKEY *key = NULL; 309 char *CApath = NULL, *CAfile = NULL, *cipher = NULL; 310 int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0; 311 int crlf = 0; 312 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; 313 SSL_CTX *ctx = NULL; 314 int ret = 1, in_init = 1, i, nbio_test = 0; 315 int starttls_proto = PROTO_OFF; 316 int prexit = 0; 317 X509_VERIFY_PARAM *vpm = NULL; 318 int badarg = 0; 319 const SSL_METHOD *meth = NULL; 320 int socket_type = SOCK_STREAM; 321 BIO *sbio; 322 int mbuf_len = 0; 323 struct timeval timeout; 324 const char *errstr = NULL; 325 char *servername = NULL; 326 tlsextctx tlsextcbp = {NULL, 0}; 327 const char *alpn_in = NULL; 328 const char *groups_in = NULL; 329 char *sess_in = NULL; 330 char *sess_out = NULL; 331 struct sockaddr peer; 332 int peerlen = sizeof(peer); 333 int enable_timeouts = 0; 334 long socket_mtu = 0; 335 336 if (single_execution) { 337 if (pledge("stdio cpath wpath rpath inet dns tty", NULL) == -1) { 338 perror("pledge"); 339 exit(1); 340 } 341 } 342 343 meth = SSLv23_client_method(); 344 345 c_Pause = 0; 346 c_quiet = 0; 347 c_ign_eof = 0; 348 c_debug = 0; 349 c_msg = 0; 350 c_showcerts = 0; 351 352 if (((cbuf = malloc(BUFSIZZ)) == NULL) || 353 ((sbuf = malloc(BUFSIZZ)) == NULL) || 354 ((mbuf = malloc(BUFSIZZ + 1)) == NULL)) { /* NUL byte */ 355 BIO_printf(bio_err, "out of memory\n"); 356 goto end; 357 } 358 verify_depth = 0; 359 c_nbio = 0; 360 361 argc--; 362 argv++; 363 while (argc >= 1) { 364 if (strcmp(*argv, "-host") == 0) { 365 if (--argc < 1) 366 goto bad; 367 host = *(++argv); 368 } else if (strcmp(*argv, "-port") == 0) { 369 if (--argc < 1) 370 goto bad; 371 port = *(++argv); 372 if (port == NULL || *port == '\0') 373 goto bad; 374 } else if (strcmp(*argv, "-connect") == 0) { 375 if (--argc < 1) 376 goto bad; 377 connect = *(++argv); 378 } else if (strcmp(*argv, "-proxy") == 0) { 379 if (--argc < 1) 380 goto bad; 381 proxy = *(++argv); 382 } else if (strcmp(*argv,"-xmpphost") == 0) { 383 if (--argc < 1) 384 goto bad; 385 xmpphost= *(++argv); 386 } else if (strcmp(*argv, "-verify") == 0) { 387 verify = SSL_VERIFY_PEER; 388 if (--argc < 1) 389 goto bad; 390 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 391 if (errstr) 392 goto bad; 393 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 394 } else if (strcmp(*argv, "-cert") == 0) { 395 if (--argc < 1) 396 goto bad; 397 cert_file = *(++argv); 398 } else if (strcmp(*argv, "-sess_out") == 0) { 399 if (--argc < 1) 400 goto bad; 401 sess_out = *(++argv); 402 } else if (strcmp(*argv, "-sess_in") == 0) { 403 if (--argc < 1) 404 goto bad; 405 sess_in = *(++argv); 406 } else if (strcmp(*argv, "-certform") == 0) { 407 if (--argc < 1) 408 goto bad; 409 cert_format = str2fmt(*(++argv)); 410 } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 411 if (badarg) 412 goto bad; 413 continue; 414 } else if (strcmp(*argv, "-verify_return_error") == 0) 415 verify_return_error = 1; 416 else if (strcmp(*argv, "-prexit") == 0) 417 prexit = 1; 418 else if (strcmp(*argv, "-crlf") == 0) 419 crlf = 1; 420 else if (strcmp(*argv, "-quiet") == 0) { 421 c_quiet = 1; 422 c_ign_eof = 1; 423 } else if (strcmp(*argv, "-ign_eof") == 0) 424 c_ign_eof = 1; 425 else if (strcmp(*argv, "-no_ign_eof") == 0) 426 c_ign_eof = 0; 427 else if (strcmp(*argv, "-pause") == 0) 428 c_Pause = 1; 429 else if (strcmp(*argv, "-debug") == 0) 430 c_debug = 1; 431 else if (strcmp(*argv, "-tlsextdebug") == 0) 432 c_tlsextdebug = 1; 433 else if (strcmp(*argv, "-status") == 0) 434 c_status_req = 1; 435 else if (strcmp(*argv, "-msg") == 0) 436 c_msg = 1; 437 else if (strcmp(*argv, "-showcerts") == 0) 438 c_showcerts = 1; 439 else if (strcmp(*argv, "-nbio_test") == 0) 440 nbio_test = 1; 441 else if (strcmp(*argv, "-state") == 0) 442 state = 1; 443 else if (strcmp(*argv, "-tls1_2") == 0) 444 meth = TLSv1_2_client_method(); 445 else if (strcmp(*argv, "-tls1_1") == 0) 446 meth = TLSv1_1_client_method(); 447 else if (strcmp(*argv, "-tls1") == 0) 448 meth = TLSv1_client_method(); 449 #ifndef OPENSSL_NO_DTLS1 450 else if (strcmp(*argv, "-dtls1") == 0) { 451 meth = DTLSv1_client_method(); 452 socket_type = SOCK_DGRAM; 453 } else if (strcmp(*argv, "-timeout") == 0) 454 enable_timeouts = 1; 455 else if (strcmp(*argv, "-mtu") == 0) { 456 if (--argc < 1) 457 goto bad; 458 socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr); 459 if (errstr) 460 goto bad; 461 } 462 #endif 463 else if (strcmp(*argv, "-bugs") == 0) 464 bugs = 1; 465 else if (strcmp(*argv, "-keyform") == 0) { 466 if (--argc < 1) 467 goto bad; 468 key_format = str2fmt(*(++argv)); 469 } else if (strcmp(*argv, "-pass") == 0) { 470 if (--argc < 1) 471 goto bad; 472 passarg = *(++argv); 473 } else if (strcmp(*argv, "-key") == 0) { 474 if (--argc < 1) 475 goto bad; 476 key_file = *(++argv); 477 } else if (strcmp(*argv, "-reconnect") == 0) { 478 reconnect = 5; 479 } else if (strcmp(*argv, "-CApath") == 0) { 480 if (--argc < 1) 481 goto bad; 482 CApath = *(++argv); 483 } else if (strcmp(*argv, "-CAfile") == 0) { 484 if (--argc < 1) 485 goto bad; 486 CAfile = *(++argv); 487 } else if (strcmp(*argv, "-no_tls1_2") == 0) 488 off |= SSL_OP_NO_TLSv1_2; 489 else if (strcmp(*argv, "-no_tls1_1") == 0) 490 off |= SSL_OP_NO_TLSv1_1; 491 else if (strcmp(*argv, "-no_tls1") == 0) 492 off |= SSL_OP_NO_TLSv1; 493 else if (strcmp(*argv, "-no_ssl3") == 0) 494 off |= SSL_OP_NO_SSLv3; 495 else if (strcmp(*argv, "-no_ssl2") == 0) 496 off |= SSL_OP_NO_SSLv2; 497 else if (strcmp(*argv, "-no_comp") == 0) { 498 off |= SSL_OP_NO_COMPRESSION; 499 } else if (strcmp(*argv, "-no_ticket") == 0) { 500 off |= SSL_OP_NO_TICKET; 501 } else if (strcmp(*argv, "-nextprotoneg") == 0) { 502 /* Ignored. */ 503 if (--argc < 1) 504 goto bad; 505 ++argv; 506 } else if (strcmp(*argv, "-alpn") == 0) { 507 if (--argc < 1) 508 goto bad; 509 alpn_in = *(++argv); 510 } else if (strcmp(*argv, "-groups") == 0) { 511 if (--argc < 1) 512 goto bad; 513 groups_in = *(++argv); 514 } else if (strcmp(*argv, "-serverpref") == 0) 515 off |= SSL_OP_CIPHER_SERVER_PREFERENCE; 516 else if (strcmp(*argv, "-legacy_renegotiation") == 0) 517 ; /* no-op */ 518 else if (strcmp(*argv, "-legacy_server_connect") == 0) { 519 off |= SSL_OP_LEGACY_SERVER_CONNECT; 520 } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) { 521 clr |= SSL_OP_LEGACY_SERVER_CONNECT; 522 } else if (strcmp(*argv, "-cipher") == 0) { 523 if (--argc < 1) 524 goto bad; 525 cipher = *(++argv); 526 } 527 else if (strcmp(*argv, "-nbio") == 0) { 528 c_nbio = 1; 529 } 530 else if (strcmp(*argv, "-starttls") == 0) { 531 if (--argc < 1) 532 goto bad; 533 ++argv; 534 if (strcmp(*argv, "smtp") == 0) 535 starttls_proto = PROTO_SMTP; 536 else if (strcmp(*argv, "lmtp") == 0) 537 starttls_proto = PROTO_LMTP; 538 else if (strcmp(*argv, "pop3") == 0) 539 starttls_proto = PROTO_POP3; 540 else if (strcmp(*argv, "imap") == 0) 541 starttls_proto = PROTO_IMAP; 542 else if (strcmp(*argv, "ftp") == 0) 543 starttls_proto = PROTO_FTP; 544 else if (strcmp(*argv, "xmpp") == 0) 545 starttls_proto = PROTO_XMPP; 546 else 547 goto bad; 548 } 549 else if (strcmp(*argv, "-4") == 0) { 550 af = AF_INET; 551 } else if (strcmp(*argv, "-6") == 0) { 552 af = AF_INET6; 553 } 554 else if (strcmp(*argv, "-servername") == 0) { 555 if (--argc < 1) 556 goto bad; 557 servername = *(++argv); 558 /* meth=TLSv1_client_method(); */ 559 } 560 #ifndef OPENSSL_NO_SRTP 561 else if (strcmp(*argv, "-use_srtp") == 0) { 562 if (--argc < 1) 563 goto bad; 564 srtp_profiles = *(++argv); 565 } 566 #endif 567 else if (strcmp(*argv, "-keymatexport") == 0) { 568 if (--argc < 1) 569 goto bad; 570 keymatexportlabel = *(++argv); 571 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 572 if (--argc < 1) 573 goto bad; 574 keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr); 575 if (errstr) 576 goto bad; 577 } else { 578 BIO_printf(bio_err, "unknown option %s\n", *argv); 579 badop = 1; 580 break; 581 } 582 argc--; 583 argv++; 584 } 585 if (proxy != NULL) { 586 if (!extract_host_port(proxy, &host, NULL, &port)) 587 goto bad; 588 if (connect == NULL) 589 connect = SSL_HOST_NAME; 590 } else if (connect != NULL) { 591 if (!extract_host_port(connect, &host, NULL, &port)) 592 goto bad; 593 } 594 if (badop) { 595 bad: 596 if (errstr) 597 BIO_printf(bio_err, "invalid argument %s: %s\n", 598 *argv, errstr); 599 else 600 sc_usage(); 601 goto end; 602 } 603 604 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { 605 BIO_printf(bio_err, "Error getting password\n"); 606 goto end; 607 } 608 if (key_file == NULL) 609 key_file = cert_file; 610 611 612 if (key_file) { 613 614 key = load_key(bio_err, key_file, key_format, 0, pass, 615 "client certificate private key file"); 616 if (!key) { 617 ERR_print_errors(bio_err); 618 goto end; 619 } 620 } 621 if (cert_file) { 622 cert = load_cert(bio_err, cert_file, cert_format, 623 NULL, "client certificate file"); 624 625 if (!cert) { 626 ERR_print_errors(bio_err); 627 goto end; 628 } 629 } 630 if (bio_c_out == NULL) { 631 if (c_quiet && !c_debug && !c_msg) { 632 bio_c_out = BIO_new(BIO_s_null()); 633 } else { 634 if (bio_c_out == NULL) 635 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE); 636 } 637 } 638 639 ctx = SSL_CTX_new(meth); 640 if (ctx == NULL) { 641 ERR_print_errors(bio_err); 642 goto end; 643 } 644 if (vpm) 645 SSL_CTX_set1_param(ctx, vpm); 646 647 #ifndef OPENSSL_NO_SRTP 648 if (srtp_profiles != NULL) 649 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 650 #endif 651 if (bugs) 652 SSL_CTX_set_options(ctx, SSL_OP_ALL | off); 653 else 654 SSL_CTX_set_options(ctx, off); 655 656 if (clr) 657 SSL_CTX_clear_options(ctx, clr); 658 /* 659 * DTLS: partial reads end up discarding unread UDP bytes :-( Setting 660 * read ahead solves this problem. 661 */ 662 if (socket_type == SOCK_DGRAM) 663 SSL_CTX_set_read_ahead(ctx, 1); 664 665 if (alpn_in) { 666 unsigned short alpn_len; 667 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); 668 669 if (alpn == NULL) { 670 BIO_printf(bio_err, "Error parsing -alpn argument\n"); 671 goto end; 672 } 673 SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len); 674 free(alpn); 675 } 676 if (groups_in != NULL) { 677 if (SSL_CTX_set1_groups_list(ctx, groups_in) != 1) { 678 BIO_printf(bio_err, "Failed to set groups '%s'\n", 679 groups_in); 680 goto end; 681 } 682 } 683 684 if (state) 685 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 686 if (cipher != NULL) 687 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 688 BIO_printf(bio_err, "error setting cipher list\n"); 689 ERR_print_errors(bio_err); 690 goto end; 691 } 692 693 SSL_CTX_set_verify(ctx, verify, verify_callback); 694 if (!set_cert_key_stuff(ctx, cert, key)) 695 goto end; 696 697 if ((CAfile || CApath) 698 && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) 699 ERR_print_errors(bio_err); 700 701 if (!SSL_CTX_set_default_verify_paths(ctx)) 702 ERR_print_errors(bio_err); 703 704 if (servername != NULL) { 705 tlsextcbp.biodebug = bio_err; 706 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 707 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 708 } 709 710 con = SSL_new(ctx); 711 if (sess_in) { 712 SSL_SESSION *sess; 713 BIO *stmp = BIO_new_file(sess_in, "r"); 714 if (!stmp) { 715 BIO_printf(bio_err, "Can't open session file %s\n", 716 sess_in); 717 ERR_print_errors(bio_err); 718 goto end; 719 } 720 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 721 BIO_free(stmp); 722 if (!sess) { 723 BIO_printf(bio_err, "Can't open session file %s\n", 724 sess_in); 725 ERR_print_errors(bio_err); 726 goto end; 727 } 728 SSL_set_session(con, sess); 729 SSL_SESSION_free(sess); 730 } 731 if (servername != NULL) { 732 if (!SSL_set_tlsext_host_name(con, servername)) { 733 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 734 ERR_print_errors(bio_err); 735 goto end; 736 } 737 } 738 /* SSL_set_cipher_list(con,"RC4-MD5"); */ 739 740 re_start: 741 742 if (init_client(&s, host, port, socket_type, af) == 0) { 743 BIO_printf(bio_err, "connect:errno=%d\n", errno); 744 goto end; 745 } 746 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 747 748 if (c_nbio) { 749 if (!c_quiet) 750 BIO_printf(bio_c_out, "turning on non blocking io\n"); 751 if (!BIO_socket_nbio(s, 1)) { 752 ERR_print_errors(bio_err); 753 goto end; 754 } 755 } 756 if (c_Pause & 0x01) 757 SSL_set_debug(con, 1); 758 759 if (SSL_version(con) == DTLS1_VERSION) { 760 761 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 762 if (getsockname(s, &peer, (void *) &peerlen) < 0) { 763 BIO_printf(bio_err, "getsockname:errno=%d\n", 764 errno); 765 shutdown(s, SHUT_RD); 766 close(s); 767 goto end; 768 } 769 (void) BIO_ctrl_set_connected(sbio, 1, &peer); 770 771 if (enable_timeouts) { 772 timeout.tv_sec = 0; 773 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 774 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 775 776 timeout.tv_sec = 0; 777 timeout.tv_usec = DGRAM_SND_TIMEOUT; 778 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 779 } 780 if (socket_mtu > 28) { 781 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 782 SSL_set_mtu(con, socket_mtu - 28); 783 } else 784 /* want to do MTU discovery */ 785 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 786 } else 787 sbio = BIO_new_socket(s, BIO_NOCLOSE); 788 789 if (nbio_test) { 790 BIO *test; 791 792 test = BIO_new(BIO_f_nbio_test()); 793 sbio = BIO_push(test, sbio); 794 } 795 if (c_debug) { 796 SSL_set_debug(con, 1); 797 BIO_set_callback(sbio, bio_dump_callback); 798 BIO_set_callback_arg(sbio, (char *) bio_c_out); 799 } 800 if (c_msg) { 801 SSL_set_msg_callback(con, msg_cb); 802 SSL_set_msg_callback_arg(con, bio_c_out); 803 } 804 if (c_tlsextdebug) { 805 SSL_set_tlsext_debug_callback(con, tlsext_cb); 806 SSL_set_tlsext_debug_arg(con, bio_c_out); 807 } 808 if (c_status_req) { 809 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 810 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 811 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 812 } 813 814 SSL_set_bio(con, sbio, sbio); 815 SSL_set_connect_state(con); 816 817 /* ok, lets connect */ 818 read_tty = 1; 819 write_tty = 0; 820 tty_on = 0; 821 read_ssl = 1; 822 write_ssl = 1; 823 824 cbuf_len = 0; 825 cbuf_off = 0; 826 sbuf_len = 0; 827 sbuf_off = 0; 828 829 /* This is an ugly hack that does a lot of assumptions */ 830 /* 831 * We do have to handle multi-line responses which may come in a 832 * single packet or not. We therefore have to use BIO_gets() which 833 * does need a buffering BIO. So during the initial chitchat we do 834 * push a buffering BIO into the chain that is removed again later on 835 * to not disturb the rest of the s_client operation. 836 */ 837 if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) { 838 int foundit = 0; 839 BIO *fbio = BIO_new(BIO_f_buffer()); 840 BIO_push(fbio, sbio); 841 /* wait for multi-line response to end from SMTP */ 842 do { 843 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 844 } 845 while (mbuf_len > 3 && mbuf[3] == '-'); 846 /* STARTTLS command requires EHLO... */ 847 BIO_printf(fbio, "%cHLO openssl.client.net\r\n", 848 starttls_proto == PROTO_SMTP ? 'E' : 'L'); 849 (void) BIO_flush(fbio); 850 /* wait for multi-line response to end EHLO SMTP response */ 851 do { 852 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 853 if (strstr(mbuf, "STARTTLS")) 854 foundit = 1; 855 } 856 while (mbuf_len > 3 && mbuf[3] == '-'); 857 (void) BIO_flush(fbio); 858 BIO_pop(fbio); 859 BIO_free(fbio); 860 if (!foundit) 861 BIO_printf(bio_err, 862 "didn't find starttls in server response," 863 " try anyway...\n"); 864 BIO_printf(sbio, "STARTTLS\r\n"); 865 BIO_read(sbio, sbuf, BUFSIZZ); 866 } else if (starttls_proto == PROTO_POP3) { 867 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 868 if (mbuf_len == -1) { 869 BIO_printf(bio_err, "BIO_read failed\n"); 870 goto end; 871 } 872 BIO_printf(sbio, "STLS\r\n"); 873 BIO_read(sbio, sbuf, BUFSIZZ); 874 } else if (starttls_proto == PROTO_IMAP) { 875 int foundit = 0; 876 BIO *fbio = BIO_new(BIO_f_buffer()); 877 BIO_push(fbio, sbio); 878 BIO_gets(fbio, mbuf, BUFSIZZ); 879 /* STARTTLS command requires CAPABILITY... */ 880 BIO_printf(fbio, ". CAPABILITY\r\n"); 881 (void) BIO_flush(fbio); 882 /* wait for multi-line CAPABILITY response */ 883 do { 884 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 885 if (strstr(mbuf, "STARTTLS")) 886 foundit = 1; 887 } 888 while (mbuf_len > 3 && mbuf[0] != '.'); 889 (void) BIO_flush(fbio); 890 BIO_pop(fbio); 891 BIO_free(fbio); 892 if (!foundit) 893 BIO_printf(bio_err, 894 "didn't find STARTTLS in server response," 895 " try anyway...\n"); 896 BIO_printf(sbio, ". STARTTLS\r\n"); 897 BIO_read(sbio, sbuf, BUFSIZZ); 898 } else if (starttls_proto == PROTO_FTP) { 899 BIO *fbio = BIO_new(BIO_f_buffer()); 900 BIO_push(fbio, sbio); 901 /* wait for multi-line response to end from FTP */ 902 do { 903 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 904 } 905 while (mbuf_len > 3 && mbuf[3] == '-'); 906 (void) BIO_flush(fbio); 907 BIO_pop(fbio); 908 BIO_free(fbio); 909 BIO_printf(sbio, "AUTH TLS\r\n"); 910 BIO_read(sbio, sbuf, BUFSIZZ); 911 } else if (starttls_proto == PROTO_XMPP) { 912 int seen = 0; 913 BIO_printf(sbio, "<stream:stream " 914 "xmlns:stream='http://etherx.jabber.org/streams' " 915 "xmlns='jabber:client' to='%s' version='1.0'>", xmpphost ? xmpphost : host); 916 seen = BIO_read(sbio, mbuf, BUFSIZZ); 917 918 if (seen <= 0) 919 goto shut; 920 921 mbuf[seen] = 0; 922 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") && 923 !strstr(mbuf, "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) { 924 seen = BIO_read(sbio, mbuf, BUFSIZZ); 925 926 if (seen <= 0) 927 goto shut; 928 929 mbuf[seen] = 0; 930 } 931 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 932 seen = BIO_read(sbio, sbuf, BUFSIZZ); 933 sbuf[seen] = 0; 934 if (!strstr(sbuf, "<proceed")) 935 goto shut; 936 mbuf[0] = 0; 937 } else if (proxy != NULL) { 938 BIO_printf(sbio, "CONNECT %s HTTP/1.0\r\n\r\n", connect); 939 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 940 if (mbuf_len == -1) { 941 BIO_printf(bio_err, "BIO_read failed\n"); 942 goto end; 943 } 944 } 945 for (;;) { 946 struct pollfd pfd[3]; /* stdin, stdout, socket */ 947 int ptimeout = -1; 948 949 if ((SSL_version(con) == DTLS1_VERSION) && 950 DTLSv1_get_timeout(con, &timeout)) 951 ptimeout = timeout.tv_sec * 1000 + timeout.tv_usec / 1000; 952 953 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { 954 in_init = 1; 955 tty_on = 0; 956 } else { 957 tty_on = 1; 958 if (in_init) { 959 in_init = 0; 960 if (sess_out) { 961 BIO *stmp = BIO_new_file(sess_out, "w"); 962 if (stmp) { 963 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 964 BIO_free(stmp); 965 } else 966 BIO_printf(bio_err, "Error writing session file %s\n", sess_out); 967 } 968 print_stuff(bio_c_out, con, full_log); 969 if (full_log > 0) 970 full_log--; 971 972 if (starttls_proto) { 973 BIO_write(bio_err, mbuf, mbuf_len); 974 /* We don't need to know any more */ 975 starttls_proto = PROTO_OFF; 976 } 977 if (reconnect) { 978 reconnect--; 979 BIO_printf(bio_c_out, "drop connection and then reconnect\n"); 980 SSL_shutdown(con); 981 SSL_set_connect_state(con); 982 shutdown(SSL_get_fd(con), SHUT_RD); 983 close(SSL_get_fd(con)); 984 goto re_start; 985 } 986 } 987 } 988 989 ssl_pending = read_ssl && SSL_pending(con); 990 991 pfd[0].fd = -1; 992 pfd[1].fd = -1; 993 if (!ssl_pending) { 994 if (tty_on) { 995 if (read_tty) { 996 pfd[0].fd = fileno(stdin); 997 pfd[0].events = POLLIN; 998 } 999 if (write_tty) { 1000 pfd[1].fd = fileno(stdout); 1001 pfd[1].events = POLLOUT; 1002 } 1003 } 1004 1005 pfd[2].fd = SSL_get_fd(con); 1006 pfd[2].events = 0; 1007 if (read_ssl) 1008 pfd[2].events |= POLLIN; 1009 if (write_ssl) 1010 pfd[2].events |= POLLOUT; 1011 1012 /* printf("mode tty(%d %d%d) ssl(%d%d)\n", 1013 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1014 1015 i = poll(pfd, 3, ptimeout); 1016 if (i < 0) { 1017 BIO_printf(bio_err, "bad select %d\n", 1018 errno); 1019 goto shut; 1020 /* goto end; */ 1021 } 1022 } 1023 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) { 1024 BIO_printf(bio_err, "TIMEOUT occured\n"); 1025 } 1026 if (!ssl_pending && (pfd[2].revents & (POLLOUT|POLLERR|POLLNVAL))) { 1027 if (pfd[2].revents & (POLLERR|POLLNVAL)) { 1028 BIO_printf(bio_err, "poll error"); 1029 goto shut; 1030 } 1031 k = SSL_write(con, &(cbuf[cbuf_off]), 1032 (unsigned int) cbuf_len); 1033 switch (SSL_get_error(con, k)) { 1034 case SSL_ERROR_NONE: 1035 cbuf_off += k; 1036 cbuf_len -= k; 1037 if (k <= 0) 1038 goto end; 1039 /* we have done a write(con,NULL,0); */ 1040 if (cbuf_len <= 0) { 1041 read_tty = 1; 1042 write_ssl = 0; 1043 } else { /* if (cbuf_len > 0) */ 1044 read_tty = 0; 1045 write_ssl = 1; 1046 } 1047 break; 1048 case SSL_ERROR_WANT_WRITE: 1049 BIO_printf(bio_c_out, "write W BLOCK\n"); 1050 write_ssl = 1; 1051 read_tty = 0; 1052 break; 1053 case SSL_ERROR_WANT_READ: 1054 BIO_printf(bio_c_out, "write R BLOCK\n"); 1055 write_tty = 0; 1056 read_ssl = 1; 1057 write_ssl = 0; 1058 break; 1059 case SSL_ERROR_WANT_X509_LOOKUP: 1060 BIO_printf(bio_c_out, "write X BLOCK\n"); 1061 break; 1062 case SSL_ERROR_ZERO_RETURN: 1063 if (cbuf_len != 0) { 1064 BIO_printf(bio_c_out, "shutdown\n"); 1065 ret = 0; 1066 goto shut; 1067 } else { 1068 read_tty = 1; 1069 write_ssl = 0; 1070 break; 1071 } 1072 1073 case SSL_ERROR_SYSCALL: 1074 if ((k != 0) || (cbuf_len != 0)) { 1075 BIO_printf(bio_err, "write:errno=%d\n", 1076 errno); 1077 goto shut; 1078 } else { 1079 read_tty = 1; 1080 write_ssl = 0; 1081 } 1082 break; 1083 case SSL_ERROR_SSL: 1084 ERR_print_errors(bio_err); 1085 goto shut; 1086 } 1087 } else if (!ssl_pending && 1088 (pfd[1].revents & (POLLOUT|POLLERR|POLLNVAL))) { 1089 if (pfd[1].revents & (POLLERR|POLLNVAL)) { 1090 BIO_printf(bio_err, "poll error"); 1091 goto shut; 1092 } 1093 i = write(fileno(stdout), &(sbuf[sbuf_off]), sbuf_len); 1094 1095 if (i <= 0) { 1096 BIO_printf(bio_c_out, "DONE\n"); 1097 ret = 0; 1098 goto shut; 1099 /* goto end; */ 1100 } 1101 sbuf_len -= i; 1102 sbuf_off += i; 1103 if (sbuf_len <= 0) { 1104 read_ssl = 1; 1105 write_tty = 0; 1106 } 1107 } else if (ssl_pending || (pfd[2].revents & (POLLIN|POLLHUP))) { 1108 #ifdef RENEG 1109 { 1110 static int iiii; 1111 if (++iiii == 52) { 1112 SSL_renegotiate(con); 1113 iiii = 0; 1114 } 1115 } 1116 #endif 1117 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 1118 1119 switch (SSL_get_error(con, k)) { 1120 case SSL_ERROR_NONE: 1121 if (k <= 0) 1122 goto end; 1123 sbuf_off = 0; 1124 sbuf_len = k; 1125 1126 read_ssl = 0; 1127 write_tty = 1; 1128 break; 1129 case SSL_ERROR_WANT_WRITE: 1130 BIO_printf(bio_c_out, "read W BLOCK\n"); 1131 write_ssl = 1; 1132 read_tty = 0; 1133 break; 1134 case SSL_ERROR_WANT_READ: 1135 BIO_printf(bio_c_out, "read R BLOCK\n"); 1136 write_tty = 0; 1137 read_ssl = 1; 1138 if ((read_tty == 0) && (write_ssl == 0)) 1139 write_ssl = 1; 1140 break; 1141 case SSL_ERROR_WANT_X509_LOOKUP: 1142 BIO_printf(bio_c_out, "read X BLOCK\n"); 1143 break; 1144 case SSL_ERROR_SYSCALL: 1145 ret = errno; 1146 BIO_printf(bio_err, "read:errno=%d\n", ret); 1147 goto shut; 1148 case SSL_ERROR_ZERO_RETURN: 1149 BIO_printf(bio_c_out, "closed\n"); 1150 ret = 0; 1151 goto shut; 1152 case SSL_ERROR_SSL: 1153 ERR_print_errors(bio_err); 1154 goto shut; 1155 /* break; */ 1156 } 1157 } else if (pfd[0].revents) { 1158 if (pfd[0].revents & (POLLERR|POLLNVAL)) { 1159 BIO_printf(bio_err, "poll error"); 1160 goto shut; 1161 } 1162 if (crlf) { 1163 int j, lf_num; 1164 1165 i = read(fileno(stdin), cbuf, BUFSIZZ / 2); 1166 lf_num = 0; 1167 /* both loops are skipped when i <= 0 */ 1168 for (j = 0; j < i; j++) 1169 if (cbuf[j] == '\n') 1170 lf_num++; 1171 for (j = i - 1; j >= 0; j--) { 1172 cbuf[j + lf_num] = cbuf[j]; 1173 if (cbuf[j] == '\n') { 1174 lf_num--; 1175 i++; 1176 cbuf[j + lf_num] = '\r'; 1177 } 1178 } 1179 assert(lf_num == 0); 1180 } else 1181 i = read(fileno(stdin), cbuf, BUFSIZZ); 1182 1183 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) { 1184 BIO_printf(bio_err, "DONE\n"); 1185 ret = 0; 1186 goto shut; 1187 } 1188 if ((!c_ign_eof) && (cbuf[0] == 'R')) { 1189 BIO_printf(bio_err, "RENEGOTIATING\n"); 1190 SSL_renegotiate(con); 1191 cbuf_len = 0; 1192 } else { 1193 cbuf_len = i; 1194 cbuf_off = 0; 1195 } 1196 1197 write_ssl = 1; 1198 read_tty = 0; 1199 } 1200 } 1201 1202 ret = 0; 1203 shut: 1204 if (in_init) 1205 print_stuff(bio_c_out, con, full_log); 1206 SSL_shutdown(con); 1207 shutdown(SSL_get_fd(con), SHUT_RD); 1208 close(SSL_get_fd(con)); 1209 end: 1210 if (con != NULL) { 1211 if (prexit != 0) 1212 print_stuff(bio_c_out, con, 1); 1213 SSL_free(con); 1214 } 1215 SSL_CTX_free(ctx); 1216 X509_free(cert); 1217 EVP_PKEY_free(key); 1218 free(pass); 1219 X509_VERIFY_PARAM_free(vpm); 1220 freezero(cbuf, BUFSIZZ); 1221 freezero(sbuf, BUFSIZZ); 1222 freezero(mbuf, BUFSIZZ); 1223 if (bio_c_out != NULL) { 1224 BIO_free(bio_c_out); 1225 bio_c_out = NULL; 1226 } 1227 1228 return (ret); 1229 } 1230 1231 1232 static void 1233 print_stuff(BIO * bio, SSL * s, int full) 1234 { 1235 X509 *peer = NULL; 1236 char *p; 1237 static const char *space = " "; 1238 char buf[BUFSIZ]; 1239 STACK_OF(X509) * sk; 1240 STACK_OF(X509_NAME) * sk2; 1241 const SSL_CIPHER *c; 1242 X509_NAME *xn; 1243 int j, i; 1244 unsigned char *exportedkeymat; 1245 1246 if (full) { 1247 int got_a_chain = 0; 1248 1249 sk = SSL_get_peer_cert_chain(s); 1250 if (sk != NULL) { 1251 got_a_chain = 1; /* we don't have it for SSL2 1252 * (yet) */ 1253 1254 BIO_printf(bio, "---\nCertificate chain\n"); 1255 for (i = 0; i < sk_X509_num(sk); i++) { 1256 X509_NAME_oneline(X509_get_subject_name( 1257 sk_X509_value(sk, i)), buf, sizeof buf); 1258 BIO_printf(bio, "%2d s:%s\n", i, buf); 1259 X509_NAME_oneline(X509_get_issuer_name( 1260 sk_X509_value(sk, i)), buf, sizeof buf); 1261 BIO_printf(bio, " i:%s\n", buf); 1262 if (c_showcerts) 1263 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 1264 } 1265 } 1266 BIO_printf(bio, "---\n"); 1267 peer = SSL_get_peer_certificate(s); 1268 if (peer != NULL) { 1269 BIO_printf(bio, "Server certificate\n"); 1270 if (!(c_showcerts && got_a_chain)) /* Redundant if we 1271 * showed the whole 1272 * chain */ 1273 PEM_write_bio_X509(bio, peer); 1274 X509_NAME_oneline(X509_get_subject_name(peer), 1275 buf, sizeof buf); 1276 BIO_printf(bio, "subject=%s\n", buf); 1277 X509_NAME_oneline(X509_get_issuer_name(peer), 1278 buf, sizeof buf); 1279 BIO_printf(bio, "issuer=%s\n", buf); 1280 } else 1281 BIO_printf(bio, "no peer certificate available\n"); 1282 1283 sk2 = SSL_get_client_CA_list(s); 1284 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { 1285 BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); 1286 for (i = 0; i < sk_X509_NAME_num(sk2); i++) { 1287 xn = sk_X509_NAME_value(sk2, i); 1288 X509_NAME_oneline(xn, buf, sizeof(buf)); 1289 BIO_write(bio, buf, strlen(buf)); 1290 BIO_write(bio, "\n", 1); 1291 } 1292 } else { 1293 BIO_printf(bio, "---\nNo client certificate CA names sent\n"); 1294 } 1295 p = SSL_get_shared_ciphers(s, buf, sizeof buf); 1296 if (p != NULL) { 1297 /* 1298 * This works only for SSL 2. In later protocol 1299 * versions, the client does not know what other 1300 * ciphers (in addition to the one to be used in the 1301 * current connection) the server supports. 1302 */ 1303 1304 BIO_printf(bio, "---\nCiphers common between both SSL endpoints:\n"); 1305 j = i = 0; 1306 while (*p) { 1307 if (*p == ':') { 1308 BIO_write(bio, space, 15 - j % 25); 1309 i++; 1310 j = 0; 1311 BIO_write(bio, ((i % 3) ? " " : "\n"), 1); 1312 } else { 1313 BIO_write(bio, p, 1); 1314 j++; 1315 } 1316 p++; 1317 } 1318 BIO_write(bio, "\n", 1); 1319 } 1320 1321 ssl_print_tmp_key(bio, s); 1322 1323 BIO_printf(bio, "---\nSSL handshake has read %ld bytes and written %ld bytes\n", 1324 BIO_number_read(SSL_get_rbio(s)), 1325 BIO_number_written(SSL_get_wbio(s))); 1326 } 1327 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, ")); 1328 c = SSL_get_current_cipher(s); 1329 BIO_printf(bio, "%s, Cipher is %s\n", 1330 SSL_CIPHER_get_version(c), 1331 SSL_CIPHER_get_name(c)); 1332 if (peer != NULL) { 1333 EVP_PKEY *pktmp; 1334 pktmp = X509_get_pubkey(peer); 1335 BIO_printf(bio, "Server public key is %d bit\n", 1336 EVP_PKEY_bits(pktmp)); 1337 EVP_PKEY_free(pktmp); 1338 } 1339 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 1340 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 1341 1342 /* Compression is not supported and will always be none. */ 1343 BIO_printf(bio, "Compression: NONE\n"); 1344 BIO_printf(bio, "Expansion: NONE\n"); 1345 1346 #ifdef SSL_DEBUG 1347 { 1348 /* Print out local port of connection: useful for debugging */ 1349 int sock; 1350 struct sockaddr_in ladd; 1351 socklen_t ladd_size = sizeof(ladd); 1352 sock = SSL_get_fd(s); 1353 getsockname(sock, (struct sockaddr *) & ladd, &ladd_size); 1354 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); 1355 } 1356 #endif 1357 1358 { 1359 const unsigned char *proto; 1360 unsigned int proto_len; 1361 SSL_get0_alpn_selected(s, &proto, &proto_len); 1362 if (proto_len > 0) { 1363 BIO_printf(bio, "ALPN protocol: "); 1364 BIO_write(bio, proto, proto_len); 1365 BIO_write(bio, "\n", 1); 1366 } else 1367 BIO_printf(bio, "No ALPN negotiated\n"); 1368 } 1369 1370 #ifndef OPENSSL_NO_SRTP 1371 { 1372 SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s); 1373 1374 if (srtp_profile) 1375 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 1376 srtp_profile->name); 1377 } 1378 #endif 1379 1380 SSL_SESSION_print(bio, SSL_get_session(s)); 1381 if (keymatexportlabel != NULL) { 1382 BIO_printf(bio, "Keying material exporter:\n"); 1383 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 1384 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 1385 exportedkeymat = malloc(keymatexportlen); 1386 if (exportedkeymat != NULL) { 1387 if (!SSL_export_keying_material(s, exportedkeymat, 1388 keymatexportlen, 1389 keymatexportlabel, 1390 strlen(keymatexportlabel), 1391 NULL, 0, 0)) { 1392 BIO_printf(bio, " Error\n"); 1393 } else { 1394 BIO_printf(bio, " Keying material: "); 1395 for (i = 0; i < keymatexportlen; i++) 1396 BIO_printf(bio, "%02X", 1397 exportedkeymat[i]); 1398 BIO_printf(bio, "\n"); 1399 } 1400 free(exportedkeymat); 1401 } 1402 } 1403 BIO_printf(bio, "---\n"); 1404 X509_free(peer); 1405 /* flush, or debugging output gets mixed with http response */ 1406 (void) BIO_flush(bio); 1407 } 1408 1409 1410 static int 1411 ocsp_resp_cb(SSL * s, void *arg) 1412 { 1413 const unsigned char *p; 1414 int len; 1415 OCSP_RESPONSE *rsp; 1416 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 1417 BIO_puts(arg, "OCSP response: "); 1418 if (!p) { 1419 BIO_puts(arg, "no response sent\n"); 1420 return 1; 1421 } 1422 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 1423 if (!rsp) { 1424 BIO_puts(arg, "response parse error\n"); 1425 BIO_dump_indent(arg, (char *) p, len, 4); 1426 return 0; 1427 } 1428 BIO_puts(arg, "\n======================================\n"); 1429 OCSP_RESPONSE_print(arg, rsp, 0); 1430 BIO_puts(arg, "======================================\n"); 1431 OCSP_RESPONSE_free(rsp); 1432 return 1; 1433 } 1434 1435