1 /* $OpenBSD: s_client.c,v 1.27 2015/12/01 12:01:56 jca 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, " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n"); 247 BIO_printf(bio_err, " -alpn arg - enable ALPN extension, considering named protocols supported (comma-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 /* This the context that we pass to next_proto_cb */ 281 typedef struct tlsextnextprotoctx_st { 282 unsigned char *data; 283 unsigned short len; 284 int status; 285 } tlsextnextprotoctx; 286 287 static tlsextnextprotoctx next_proto; 288 289 static int 290 next_proto_cb(SSL * s, unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg) 291 { 292 tlsextnextprotoctx *ctx = arg; 293 294 if (!c_quiet) { 295 /* We can assume that |in| is syntactically valid. */ 296 unsigned i; 297 BIO_printf(bio_c_out, "Protocols advertised by server: "); 298 for (i = 0; i < inlen;) { 299 if (i) 300 BIO_write(bio_c_out, ", ", 2); 301 BIO_write(bio_c_out, &in[i + 1], in[i]); 302 i += in[i] + 1; 303 } 304 BIO_write(bio_c_out, "\n", 1); 305 } 306 ctx->status = SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); 307 return SSL_TLSEXT_ERR_OK; 308 } 309 310 enum { 311 PROTO_OFF = 0, 312 PROTO_SMTP, 313 PROTO_LMTP, 314 PROTO_POP3, 315 PROTO_IMAP, 316 PROTO_FTP, 317 PROTO_XMPP 318 }; 319 320 int 321 s_client_main(int argc, char **argv) 322 { 323 unsigned int off = 0, clr = 0; 324 SSL *con = NULL; 325 int s, k, state = 0, af = AF_UNSPEC; 326 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL; 327 int cbuf_len, cbuf_off; 328 int sbuf_len, sbuf_off; 329 char *port = PORT_STR; 330 int full_log = 1; 331 char *host = SSL_HOST_NAME; 332 char *xmpphost = NULL; 333 char *proxy = NULL, *connect = NULL; 334 char *cert_file = NULL, *key_file = NULL; 335 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM; 336 char *passarg = NULL, *pass = NULL; 337 X509 *cert = NULL; 338 EVP_PKEY *key = NULL; 339 char *CApath = NULL, *CAfile = NULL, *cipher = NULL; 340 int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0; 341 int crlf = 0; 342 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; 343 SSL_CTX *ctx = NULL; 344 int ret = 1, in_init = 1, i, nbio_test = 0; 345 int starttls_proto = PROTO_OFF; 346 int prexit = 0; 347 X509_VERIFY_PARAM *vpm = NULL; 348 int badarg = 0; 349 const SSL_METHOD *meth = NULL; 350 int socket_type = SOCK_STREAM; 351 BIO *sbio; 352 int mbuf_len = 0; 353 struct timeval timeout; 354 const char *errstr = NULL; 355 char *servername = NULL; 356 tlsextctx tlsextcbp = 357 {NULL, 0}; 358 const char *next_proto_neg_in = NULL; 359 const char *alpn_in = NULL; 360 char *sess_in = NULL; 361 char *sess_out = NULL; 362 struct sockaddr peer; 363 int peerlen = sizeof(peer); 364 int enable_timeouts = 0; 365 long socket_mtu = 0; 366 367 if (single_execution) { 368 if (pledge("stdio inet dns rpath wpath cpath tty", NULL) == -1) { 369 perror("pledge"); 370 exit(1); 371 } 372 } 373 374 meth = SSLv23_client_method(); 375 376 c_Pause = 0; 377 c_quiet = 0; 378 c_ign_eof = 0; 379 c_debug = 0; 380 c_msg = 0; 381 c_showcerts = 0; 382 383 if (((cbuf = malloc(BUFSIZZ)) == NULL) || 384 ((sbuf = malloc(BUFSIZZ)) == NULL) || 385 ((mbuf = malloc(BUFSIZZ + 1)) == NULL)) { /* NUL byte */ 386 BIO_printf(bio_err, "out of memory\n"); 387 goto end; 388 } 389 verify_depth = 0; 390 c_nbio = 0; 391 392 argc--; 393 argv++; 394 while (argc >= 1) { 395 if (strcmp(*argv, "-host") == 0) { 396 if (--argc < 1) 397 goto bad; 398 host = *(++argv); 399 } else if (strcmp(*argv, "-port") == 0) { 400 if (--argc < 1) 401 goto bad; 402 port = *(++argv); 403 if (port == NULL || *port == '\0') 404 goto bad; 405 } else if (strcmp(*argv, "-connect") == 0) { 406 if (--argc < 1) 407 goto bad; 408 connect = *(++argv); 409 } else if (strcmp(*argv, "-proxy") == 0) { 410 if (--argc < 1) 411 goto bad; 412 proxy = *(++argv); 413 } else if (strcmp(*argv,"-xmpphost") == 0) { 414 if (--argc < 1) 415 goto bad; 416 xmpphost= *(++argv); 417 } else if (strcmp(*argv, "-verify") == 0) { 418 verify = SSL_VERIFY_PEER; 419 if (--argc < 1) 420 goto bad; 421 verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr); 422 if (errstr) 423 goto bad; 424 BIO_printf(bio_err, "verify depth is %d\n", verify_depth); 425 } else if (strcmp(*argv, "-cert") == 0) { 426 if (--argc < 1) 427 goto bad; 428 cert_file = *(++argv); 429 } else if (strcmp(*argv, "-sess_out") == 0) { 430 if (--argc < 1) 431 goto bad; 432 sess_out = *(++argv); 433 } else if (strcmp(*argv, "-sess_in") == 0) { 434 if (--argc < 1) 435 goto bad; 436 sess_in = *(++argv); 437 } else if (strcmp(*argv, "-certform") == 0) { 438 if (--argc < 1) 439 goto bad; 440 cert_format = str2fmt(*(++argv)); 441 } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) { 442 if (badarg) 443 goto bad; 444 continue; 445 } else if (strcmp(*argv, "-verify_return_error") == 0) 446 verify_return_error = 1; 447 else if (strcmp(*argv, "-prexit") == 0) 448 prexit = 1; 449 else if (strcmp(*argv, "-crlf") == 0) 450 crlf = 1; 451 else if (strcmp(*argv, "-quiet") == 0) { 452 c_quiet = 1; 453 c_ign_eof = 1; 454 } else if (strcmp(*argv, "-ign_eof") == 0) 455 c_ign_eof = 1; 456 else if (strcmp(*argv, "-no_ign_eof") == 0) 457 c_ign_eof = 0; 458 else if (strcmp(*argv, "-pause") == 0) 459 c_Pause = 1; 460 else if (strcmp(*argv, "-debug") == 0) 461 c_debug = 1; 462 else if (strcmp(*argv, "-tlsextdebug") == 0) 463 c_tlsextdebug = 1; 464 else if (strcmp(*argv, "-status") == 0) 465 c_status_req = 1; 466 else if (strcmp(*argv, "-msg") == 0) 467 c_msg = 1; 468 else if (strcmp(*argv, "-showcerts") == 0) 469 c_showcerts = 1; 470 else if (strcmp(*argv, "-nbio_test") == 0) 471 nbio_test = 1; 472 else if (strcmp(*argv, "-state") == 0) 473 state = 1; 474 else if (strcmp(*argv, "-tls1_2") == 0) 475 meth = TLSv1_2_client_method(); 476 else if (strcmp(*argv, "-tls1_1") == 0) 477 meth = TLSv1_1_client_method(); 478 else if (strcmp(*argv, "-tls1") == 0) 479 meth = TLSv1_client_method(); 480 #ifndef OPENSSL_NO_DTLS1 481 else if (strcmp(*argv, "-dtls1") == 0) { 482 meth = DTLSv1_client_method(); 483 socket_type = SOCK_DGRAM; 484 } else if (strcmp(*argv, "-timeout") == 0) 485 enable_timeouts = 1; 486 else if (strcmp(*argv, "-mtu") == 0) { 487 if (--argc < 1) 488 goto bad; 489 socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr); 490 if (errstr) 491 goto bad; 492 } 493 #endif 494 else if (strcmp(*argv, "-bugs") == 0) 495 bugs = 1; 496 else if (strcmp(*argv, "-keyform") == 0) { 497 if (--argc < 1) 498 goto bad; 499 key_format = str2fmt(*(++argv)); 500 } else if (strcmp(*argv, "-pass") == 0) { 501 if (--argc < 1) 502 goto bad; 503 passarg = *(++argv); 504 } else if (strcmp(*argv, "-key") == 0) { 505 if (--argc < 1) 506 goto bad; 507 key_file = *(++argv); 508 } else if (strcmp(*argv, "-reconnect") == 0) { 509 reconnect = 5; 510 } else if (strcmp(*argv, "-CApath") == 0) { 511 if (--argc < 1) 512 goto bad; 513 CApath = *(++argv); 514 } else if (strcmp(*argv, "-CAfile") == 0) { 515 if (--argc < 1) 516 goto bad; 517 CAfile = *(++argv); 518 } else if (strcmp(*argv, "-no_tls1_2") == 0) 519 off |= SSL_OP_NO_TLSv1_2; 520 else if (strcmp(*argv, "-no_tls1_1") == 0) 521 off |= SSL_OP_NO_TLSv1_1; 522 else if (strcmp(*argv, "-no_tls1") == 0) 523 off |= SSL_OP_NO_TLSv1; 524 else if (strcmp(*argv, "-no_ssl3") == 0) 525 off |= SSL_OP_NO_SSLv3; 526 else if (strcmp(*argv, "-no_ssl2") == 0) 527 off |= SSL_OP_NO_SSLv2; 528 else if (strcmp(*argv, "-no_comp") == 0) { 529 off |= SSL_OP_NO_COMPRESSION; 530 } 531 else if (strcmp(*argv, "-no_ticket") == 0) { 532 off |= SSL_OP_NO_TICKET; 533 } 534 else if (strcmp(*argv, "-nextprotoneg") == 0) { 535 if (--argc < 1) 536 goto bad; 537 next_proto_neg_in = *(++argv); 538 } 539 else if (strcmp(*argv, "-alpn") == 0) { 540 if (--argc < 1) 541 goto bad; 542 alpn_in = *(++argv); 543 } else if (strcmp(*argv, "-serverpref") == 0) 544 off |= SSL_OP_CIPHER_SERVER_PREFERENCE; 545 else if (strcmp(*argv, "-legacy_renegotiation") == 0) 546 ; /* no-op */ 547 else if (strcmp(*argv, "-legacy_server_connect") == 0) { 548 off |= SSL_OP_LEGACY_SERVER_CONNECT; 549 } else if (strcmp(*argv, "-no_legacy_server_connect") == 0) { 550 clr |= SSL_OP_LEGACY_SERVER_CONNECT; 551 } else if (strcmp(*argv, "-cipher") == 0) { 552 if (--argc < 1) 553 goto bad; 554 cipher = *(++argv); 555 } 556 else if (strcmp(*argv, "-nbio") == 0) { 557 c_nbio = 1; 558 } 559 else if (strcmp(*argv, "-starttls") == 0) { 560 if (--argc < 1) 561 goto bad; 562 ++argv; 563 if (strcmp(*argv, "smtp") == 0) 564 starttls_proto = PROTO_SMTP; 565 else if (strcmp(*argv, "lmtp") == 0) 566 starttls_proto = PROTO_LMTP; 567 else if (strcmp(*argv, "pop3") == 0) 568 starttls_proto = PROTO_POP3; 569 else if (strcmp(*argv, "imap") == 0) 570 starttls_proto = PROTO_IMAP; 571 else if (strcmp(*argv, "ftp") == 0) 572 starttls_proto = PROTO_FTP; 573 else if (strcmp(*argv, "xmpp") == 0) 574 starttls_proto = PROTO_XMPP; 575 else 576 goto bad; 577 } 578 else if (strcmp(*argv, "-4") == 0) { 579 af = AF_INET; 580 } else if (strcmp(*argv, "-6") == 0) { 581 af = AF_INET6; 582 } 583 else if (strcmp(*argv, "-servername") == 0) { 584 if (--argc < 1) 585 goto bad; 586 servername = *(++argv); 587 /* meth=TLSv1_client_method(); */ 588 } 589 #ifndef OPENSSL_NO_SRTP 590 else if (strcmp(*argv, "-use_srtp") == 0) { 591 if (--argc < 1) 592 goto bad; 593 srtp_profiles = *(++argv); 594 } 595 #endif 596 else if (strcmp(*argv, "-keymatexport") == 0) { 597 if (--argc < 1) 598 goto bad; 599 keymatexportlabel = *(++argv); 600 } else if (strcmp(*argv, "-keymatexportlen") == 0) { 601 if (--argc < 1) 602 goto bad; 603 keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr); 604 if (errstr) 605 goto bad; 606 } else { 607 BIO_printf(bio_err, "unknown option %s\n", *argv); 608 badop = 1; 609 break; 610 } 611 argc--; 612 argv++; 613 } 614 if (proxy != NULL) { 615 if (!extract_host_port(proxy, &host, NULL, &port)) 616 goto bad; 617 if (connect == NULL) 618 connect = SSL_HOST_NAME; 619 } else if (connect != NULL) { 620 if (!extract_host_port(connect, &host, NULL, &port)) 621 goto bad; 622 } 623 if (badop) { 624 bad: 625 if (errstr) 626 BIO_printf(bio_err, "invalid argument %s: %s\n", 627 *argv, errstr); 628 else 629 sc_usage(); 630 goto end; 631 } 632 633 next_proto.status = -1; 634 if (next_proto_neg_in) { 635 next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in); 636 if (next_proto.data == NULL) { 637 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); 638 goto end; 639 } 640 } else 641 next_proto.data = NULL; 642 643 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { 644 BIO_printf(bio_err, "Error getting password\n"); 645 goto end; 646 } 647 if (key_file == NULL) 648 key_file = cert_file; 649 650 651 if (key_file) { 652 653 key = load_key(bio_err, key_file, key_format, 0, pass, 654 "client certificate private key file"); 655 if (!key) { 656 ERR_print_errors(bio_err); 657 goto end; 658 } 659 } 660 if (cert_file) { 661 cert = load_cert(bio_err, cert_file, cert_format, 662 NULL, "client certificate file"); 663 664 if (!cert) { 665 ERR_print_errors(bio_err); 666 goto end; 667 } 668 } 669 if (bio_c_out == NULL) { 670 if (c_quiet && !c_debug && !c_msg) { 671 bio_c_out = BIO_new(BIO_s_null()); 672 } else { 673 if (bio_c_out == NULL) 674 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE); 675 } 676 } 677 678 ctx = SSL_CTX_new(meth); 679 if (ctx == NULL) { 680 ERR_print_errors(bio_err); 681 goto end; 682 } 683 if (vpm) 684 SSL_CTX_set1_param(ctx, vpm); 685 686 #ifndef OPENSSL_NO_SRTP 687 if (srtp_profiles != NULL) 688 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles); 689 #endif 690 if (bugs) 691 SSL_CTX_set_options(ctx, SSL_OP_ALL | off); 692 else 693 SSL_CTX_set_options(ctx, off); 694 695 if (clr) 696 SSL_CTX_clear_options(ctx, clr); 697 /* 698 * DTLS: partial reads end up discarding unread UDP bytes :-( Setting 699 * read ahead solves this problem. 700 */ 701 if (socket_type == SOCK_DGRAM) 702 SSL_CTX_set_read_ahead(ctx, 1); 703 704 if (next_proto.data) 705 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); 706 if (alpn_in) { 707 unsigned short alpn_len; 708 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); 709 710 if (alpn == NULL) { 711 BIO_printf(bio_err, "Error parsing -alpn argument\n"); 712 goto end; 713 } 714 SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len); 715 free(alpn); 716 } 717 718 if (state) 719 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); 720 if (cipher != NULL) 721 if (!SSL_CTX_set_cipher_list(ctx, cipher)) { 722 BIO_printf(bio_err, "error setting cipher list\n"); 723 ERR_print_errors(bio_err); 724 goto end; 725 } 726 727 SSL_CTX_set_verify(ctx, verify, verify_callback); 728 if (!set_cert_key_stuff(ctx, cert, key)) 729 goto end; 730 731 if ((CAfile || CApath) 732 && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) 733 ERR_print_errors(bio_err); 734 735 if (!SSL_CTX_set_default_verify_paths(ctx)) 736 ERR_print_errors(bio_err); 737 738 if (servername != NULL) { 739 tlsextcbp.biodebug = bio_err; 740 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); 741 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); 742 } 743 744 con = SSL_new(ctx); 745 if (sess_in) { 746 SSL_SESSION *sess; 747 BIO *stmp = BIO_new_file(sess_in, "r"); 748 if (!stmp) { 749 BIO_printf(bio_err, "Can't open session file %s\n", 750 sess_in); 751 ERR_print_errors(bio_err); 752 goto end; 753 } 754 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); 755 BIO_free(stmp); 756 if (!sess) { 757 BIO_printf(bio_err, "Can't open session file %s\n", 758 sess_in); 759 ERR_print_errors(bio_err); 760 goto end; 761 } 762 SSL_set_session(con, sess); 763 SSL_SESSION_free(sess); 764 } 765 if (servername != NULL) { 766 if (!SSL_set_tlsext_host_name(con, servername)) { 767 BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); 768 ERR_print_errors(bio_err); 769 goto end; 770 } 771 } 772 /* SSL_set_cipher_list(con,"RC4-MD5"); */ 773 774 re_start: 775 776 if (init_client(&s, host, port, socket_type, af) == 0) { 777 BIO_printf(bio_err, "connect:errno=%d\n", errno); 778 goto end; 779 } 780 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); 781 782 if (c_nbio) { 783 if (!c_quiet) 784 BIO_printf(bio_c_out, "turning on non blocking io\n"); 785 if (!BIO_socket_nbio(s, 1)) { 786 ERR_print_errors(bio_err); 787 goto end; 788 } 789 } 790 if (c_Pause & 0x01) 791 SSL_set_debug(con, 1); 792 793 if (SSL_version(con) == DTLS1_VERSION) { 794 795 sbio = BIO_new_dgram(s, BIO_NOCLOSE); 796 if (getsockname(s, &peer, (void *) &peerlen) < 0) { 797 BIO_printf(bio_err, "getsockname:errno=%d\n", 798 errno); 799 shutdown(s, SHUT_RD); 800 close(s); 801 goto end; 802 } 803 (void) BIO_ctrl_set_connected(sbio, 1, &peer); 804 805 if (enable_timeouts) { 806 timeout.tv_sec = 0; 807 timeout.tv_usec = DGRAM_RCV_TIMEOUT; 808 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); 809 810 timeout.tv_sec = 0; 811 timeout.tv_usec = DGRAM_SND_TIMEOUT; 812 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); 813 } 814 if (socket_mtu > 28) { 815 SSL_set_options(con, SSL_OP_NO_QUERY_MTU); 816 SSL_set_mtu(con, socket_mtu - 28); 817 } else 818 /* want to do MTU discovery */ 819 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); 820 } else 821 sbio = BIO_new_socket(s, BIO_NOCLOSE); 822 823 if (nbio_test) { 824 BIO *test; 825 826 test = BIO_new(BIO_f_nbio_test()); 827 sbio = BIO_push(test, sbio); 828 } 829 if (c_debug) { 830 SSL_set_debug(con, 1); 831 BIO_set_callback(sbio, bio_dump_callback); 832 BIO_set_callback_arg(sbio, (char *) bio_c_out); 833 } 834 if (c_msg) { 835 SSL_set_msg_callback(con, msg_cb); 836 SSL_set_msg_callback_arg(con, bio_c_out); 837 } 838 if (c_tlsextdebug) { 839 SSL_set_tlsext_debug_callback(con, tlsext_cb); 840 SSL_set_tlsext_debug_arg(con, bio_c_out); 841 } 842 if (c_status_req) { 843 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); 844 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); 845 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); 846 } 847 848 SSL_set_bio(con, sbio, sbio); 849 SSL_set_connect_state(con); 850 851 /* ok, lets connect */ 852 read_tty = 1; 853 write_tty = 0; 854 tty_on = 0; 855 read_ssl = 1; 856 write_ssl = 1; 857 858 cbuf_len = 0; 859 cbuf_off = 0; 860 sbuf_len = 0; 861 sbuf_off = 0; 862 863 /* This is an ugly hack that does a lot of assumptions */ 864 /* 865 * We do have to handle multi-line responses which may come in a 866 * single packet or not. We therefore have to use BIO_gets() which 867 * does need a buffering BIO. So during the initial chitchat we do 868 * push a buffering BIO into the chain that is removed again later on 869 * to not disturb the rest of the s_client operation. 870 */ 871 if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) { 872 int foundit = 0; 873 BIO *fbio = BIO_new(BIO_f_buffer()); 874 BIO_push(fbio, sbio); 875 /* wait for multi-line response to end from SMTP */ 876 do { 877 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 878 } 879 while (mbuf_len > 3 && mbuf[3] == '-'); 880 /* STARTTLS command requires EHLO... */ 881 BIO_printf(fbio, "%cHLO openssl.client.net\r\n", 882 starttls_proto == PROTO_SMTP ? 'E' : 'L'); 883 (void) BIO_flush(fbio); 884 /* wait for multi-line response to end EHLO SMTP response */ 885 do { 886 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 887 if (strstr(mbuf, "STARTTLS")) 888 foundit = 1; 889 } 890 while (mbuf_len > 3 && mbuf[3] == '-'); 891 (void) BIO_flush(fbio); 892 BIO_pop(fbio); 893 BIO_free(fbio); 894 if (!foundit) 895 BIO_printf(bio_err, 896 "didn't found starttls in server response," 897 " try anyway...\n"); 898 BIO_printf(sbio, "STARTTLS\r\n"); 899 BIO_read(sbio, sbuf, BUFSIZZ); 900 } else if (starttls_proto == PROTO_POP3) { 901 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 902 if (mbuf_len == -1) { 903 BIO_printf(bio_err, "BIO_read failed\n"); 904 goto end; 905 } 906 BIO_printf(sbio, "STLS\r\n"); 907 BIO_read(sbio, sbuf, BUFSIZZ); 908 } else if (starttls_proto == PROTO_IMAP) { 909 int foundit = 0; 910 BIO *fbio = BIO_new(BIO_f_buffer()); 911 BIO_push(fbio, sbio); 912 BIO_gets(fbio, mbuf, BUFSIZZ); 913 /* STARTTLS command requires CAPABILITY... */ 914 BIO_printf(fbio, ". CAPABILITY\r\n"); 915 (void) BIO_flush(fbio); 916 /* wait for multi-line CAPABILITY response */ 917 do { 918 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 919 if (strstr(mbuf, "STARTTLS")) 920 foundit = 1; 921 } 922 while (mbuf_len > 3 && mbuf[0] != '.'); 923 (void) BIO_flush(fbio); 924 BIO_pop(fbio); 925 BIO_free(fbio); 926 if (!foundit) 927 BIO_printf(bio_err, 928 "didn't found STARTTLS in server response," 929 " try anyway...\n"); 930 BIO_printf(sbio, ". STARTTLS\r\n"); 931 BIO_read(sbio, sbuf, BUFSIZZ); 932 } else if (starttls_proto == PROTO_FTP) { 933 BIO *fbio = BIO_new(BIO_f_buffer()); 934 BIO_push(fbio, sbio); 935 /* wait for multi-line response to end from FTP */ 936 do { 937 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); 938 } 939 while (mbuf_len > 3 && mbuf[3] == '-'); 940 (void) BIO_flush(fbio); 941 BIO_pop(fbio); 942 BIO_free(fbio); 943 BIO_printf(sbio, "AUTH TLS\r\n"); 944 BIO_read(sbio, sbuf, BUFSIZZ); 945 } else if (starttls_proto == PROTO_XMPP) { 946 int seen = 0; 947 BIO_printf(sbio, "<stream:stream " 948 "xmlns:stream='http://etherx.jabber.org/streams' " 949 "xmlns='jabber:client' to='%s' version='1.0'>", xmpphost ? xmpphost : host); 950 seen = BIO_read(sbio, mbuf, BUFSIZZ); 951 952 if (seen <= 0) 953 goto shut; 954 955 mbuf[seen] = 0; 956 while (!strstr(mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") && 957 !strstr(mbuf, "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) { 958 seen = BIO_read(sbio, mbuf, BUFSIZZ); 959 960 if (seen <= 0) 961 goto shut; 962 963 mbuf[seen] = 0; 964 } 965 BIO_printf(sbio, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); 966 seen = BIO_read(sbio, sbuf, BUFSIZZ); 967 sbuf[seen] = 0; 968 if (!strstr(sbuf, "<proceed")) 969 goto shut; 970 mbuf[0] = 0; 971 } else if (proxy != NULL) { 972 BIO_printf(sbio, "CONNECT %s HTTP/1.0\r\n\r\n", connect); 973 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ); 974 if (mbuf_len == -1) { 975 BIO_printf(bio_err, "BIO_read failed\n"); 976 goto end; 977 } 978 } 979 for (;;) { 980 struct pollfd pfd[3]; /* stdin, stdout, socket */ 981 int ptimeout = -1; 982 983 if ((SSL_version(con) == DTLS1_VERSION) && 984 DTLSv1_get_timeout(con, &timeout)) 985 ptimeout = timeout.tv_sec * 1000 + timeout.tv_usec / 1000; 986 987 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { 988 in_init = 1; 989 tty_on = 0; 990 } else { 991 tty_on = 1; 992 if (in_init) { 993 in_init = 0; 994 if (sess_out) { 995 BIO *stmp = BIO_new_file(sess_out, "w"); 996 if (stmp) { 997 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); 998 BIO_free(stmp); 999 } else 1000 BIO_printf(bio_err, "Error writing session file %s\n", sess_out); 1001 } 1002 print_stuff(bio_c_out, con, full_log); 1003 if (full_log > 0) 1004 full_log--; 1005 1006 if (starttls_proto) { 1007 BIO_write(bio_err, mbuf, mbuf_len); 1008 /* We don't need to know any more */ 1009 starttls_proto = PROTO_OFF; 1010 } 1011 if (reconnect) { 1012 reconnect--; 1013 BIO_printf(bio_c_out, "drop connection and then reconnect\n"); 1014 SSL_shutdown(con); 1015 SSL_set_connect_state(con); 1016 shutdown(SSL_get_fd(con), SHUT_RD); 1017 close(SSL_get_fd(con)); 1018 goto re_start; 1019 } 1020 } 1021 } 1022 1023 ssl_pending = read_ssl && SSL_pending(con); 1024 1025 pfd[0].fd = -1; 1026 pfd[1].fd = -1; 1027 if (!ssl_pending) { 1028 if (tty_on) { 1029 if (read_tty) { 1030 pfd[0].fd = fileno(stdin); 1031 pfd[0].events = POLLIN; 1032 } 1033 if (write_tty) { 1034 pfd[1].fd = fileno(stdout); 1035 pfd[1].events = POLLOUT; 1036 } 1037 } 1038 1039 pfd[2].fd = SSL_get_fd(con); 1040 pfd[2].events = 0; 1041 if (read_ssl) 1042 pfd[2].events |= POLLIN; 1043 if (write_ssl) 1044 pfd[2].events |= POLLOUT; 1045 1046 /* printf("mode tty(%d %d%d) ssl(%d%d)\n", 1047 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/ 1048 1049 i = poll(pfd, 3, ptimeout); 1050 if (i < 0) { 1051 BIO_printf(bio_err, "bad select %d\n", 1052 errno); 1053 goto shut; 1054 /* goto end; */ 1055 } 1056 } 1057 if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) { 1058 BIO_printf(bio_err, "TIMEOUT occured\n"); 1059 } 1060 if (!ssl_pending && (pfd[2].revents & (POLLOUT|POLLERR|POLLNVAL))) { 1061 if (pfd[2].revents & (POLLERR|POLLNVAL)) { 1062 BIO_printf(bio_err, "poll error"); 1063 goto shut; 1064 } 1065 k = SSL_write(con, &(cbuf[cbuf_off]), 1066 (unsigned int) cbuf_len); 1067 switch (SSL_get_error(con, k)) { 1068 case SSL_ERROR_NONE: 1069 cbuf_off += k; 1070 cbuf_len -= k; 1071 if (k <= 0) 1072 goto end; 1073 /* we have done a write(con,NULL,0); */ 1074 if (cbuf_len <= 0) { 1075 read_tty = 1; 1076 write_ssl = 0; 1077 } else { /* if (cbuf_len > 0) */ 1078 read_tty = 0; 1079 write_ssl = 1; 1080 } 1081 break; 1082 case SSL_ERROR_WANT_WRITE: 1083 BIO_printf(bio_c_out, "write W BLOCK\n"); 1084 write_ssl = 1; 1085 read_tty = 0; 1086 break; 1087 case SSL_ERROR_WANT_READ: 1088 BIO_printf(bio_c_out, "write R BLOCK\n"); 1089 write_tty = 0; 1090 read_ssl = 1; 1091 write_ssl = 0; 1092 break; 1093 case SSL_ERROR_WANT_X509_LOOKUP: 1094 BIO_printf(bio_c_out, "write X BLOCK\n"); 1095 break; 1096 case SSL_ERROR_ZERO_RETURN: 1097 if (cbuf_len != 0) { 1098 BIO_printf(bio_c_out, "shutdown\n"); 1099 ret = 0; 1100 goto shut; 1101 } else { 1102 read_tty = 1; 1103 write_ssl = 0; 1104 break; 1105 } 1106 1107 case SSL_ERROR_SYSCALL: 1108 if ((k != 0) || (cbuf_len != 0)) { 1109 BIO_printf(bio_err, "write:errno=%d\n", 1110 errno); 1111 goto shut; 1112 } else { 1113 read_tty = 1; 1114 write_ssl = 0; 1115 } 1116 break; 1117 case SSL_ERROR_SSL: 1118 ERR_print_errors(bio_err); 1119 goto shut; 1120 } 1121 } else if (!ssl_pending && 1122 (pfd[1].revents & (POLLOUT|POLLERR|POLLNVAL))) { 1123 if (pfd[1].revents & (POLLERR|POLLNVAL)) { 1124 BIO_printf(bio_err, "poll error"); 1125 goto shut; 1126 } 1127 i = write(fileno(stdout), &(sbuf[sbuf_off]), sbuf_len); 1128 1129 if (i <= 0) { 1130 BIO_printf(bio_c_out, "DONE\n"); 1131 ret = 0; 1132 goto shut; 1133 /* goto end; */ 1134 } 1135 sbuf_len -= i; 1136 sbuf_off += i; 1137 if (sbuf_len <= 0) { 1138 read_ssl = 1; 1139 write_tty = 0; 1140 } 1141 } else if (ssl_pending || (pfd[2].revents & (POLLIN|POLLHUP))) { 1142 #ifdef RENEG 1143 { 1144 static int iiii; 1145 if (++iiii == 52) { 1146 SSL_renegotiate(con); 1147 iiii = 0; 1148 } 1149 } 1150 #endif 1151 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); 1152 1153 switch (SSL_get_error(con, k)) { 1154 case SSL_ERROR_NONE: 1155 if (k <= 0) 1156 goto end; 1157 sbuf_off = 0; 1158 sbuf_len = k; 1159 1160 read_ssl = 0; 1161 write_tty = 1; 1162 break; 1163 case SSL_ERROR_WANT_WRITE: 1164 BIO_printf(bio_c_out, "read W BLOCK\n"); 1165 write_ssl = 1; 1166 read_tty = 0; 1167 break; 1168 case SSL_ERROR_WANT_READ: 1169 BIO_printf(bio_c_out, "read R BLOCK\n"); 1170 write_tty = 0; 1171 read_ssl = 1; 1172 if ((read_tty == 0) && (write_ssl == 0)) 1173 write_ssl = 1; 1174 break; 1175 case SSL_ERROR_WANT_X509_LOOKUP: 1176 BIO_printf(bio_c_out, "read X BLOCK\n"); 1177 break; 1178 case SSL_ERROR_SYSCALL: 1179 ret = errno; 1180 BIO_printf(bio_err, "read:errno=%d\n", ret); 1181 goto shut; 1182 case SSL_ERROR_ZERO_RETURN: 1183 BIO_printf(bio_c_out, "closed\n"); 1184 ret = 0; 1185 goto shut; 1186 case SSL_ERROR_SSL: 1187 ERR_print_errors(bio_err); 1188 goto shut; 1189 /* break; */ 1190 } 1191 } else if (pfd[0].revents) { 1192 if (pfd[0].revents & (POLLERR|POLLNVAL)) { 1193 BIO_printf(bio_err, "poll error"); 1194 goto shut; 1195 } 1196 if (crlf) { 1197 int j, lf_num; 1198 1199 i = read(fileno(stdin), cbuf, BUFSIZZ / 2); 1200 lf_num = 0; 1201 /* both loops are skipped when i <= 0 */ 1202 for (j = 0; j < i; j++) 1203 if (cbuf[j] == '\n') 1204 lf_num++; 1205 for (j = i - 1; j >= 0; j--) { 1206 cbuf[j + lf_num] = cbuf[j]; 1207 if (cbuf[j] == '\n') { 1208 lf_num--; 1209 i++; 1210 cbuf[j + lf_num] = '\r'; 1211 } 1212 } 1213 assert(lf_num == 0); 1214 } else 1215 i = read(fileno(stdin), cbuf, BUFSIZZ); 1216 1217 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) { 1218 BIO_printf(bio_err, "DONE\n"); 1219 ret = 0; 1220 goto shut; 1221 } 1222 if ((!c_ign_eof) && (cbuf[0] == 'R')) { 1223 BIO_printf(bio_err, "RENEGOTIATING\n"); 1224 SSL_renegotiate(con); 1225 cbuf_len = 0; 1226 } else { 1227 cbuf_len = i; 1228 cbuf_off = 0; 1229 } 1230 1231 write_ssl = 1; 1232 read_tty = 0; 1233 } 1234 } 1235 1236 ret = 0; 1237 shut: 1238 if (in_init) 1239 print_stuff(bio_c_out, con, full_log); 1240 SSL_shutdown(con); 1241 shutdown(SSL_get_fd(con), SHUT_RD); 1242 close(SSL_get_fd(con)); 1243 end: 1244 if (con != NULL) { 1245 if (prexit != 0) 1246 print_stuff(bio_c_out, con, 1); 1247 SSL_free(con); 1248 } 1249 free(next_proto.data); 1250 if (ctx != NULL) 1251 SSL_CTX_free(ctx); 1252 if (cert) 1253 X509_free(cert); 1254 if (key) 1255 EVP_PKEY_free(key); 1256 free(pass); 1257 if (vpm) 1258 X509_VERIFY_PARAM_free(vpm); 1259 if (cbuf != NULL) { 1260 explicit_bzero(cbuf, BUFSIZZ); 1261 free(cbuf); 1262 } 1263 if (sbuf != NULL) { 1264 explicit_bzero(sbuf, BUFSIZZ); 1265 free(sbuf); 1266 } 1267 if (mbuf != NULL) { 1268 explicit_bzero(mbuf, BUFSIZZ); 1269 free(mbuf); 1270 } 1271 if (bio_c_out != NULL) { 1272 BIO_free(bio_c_out); 1273 bio_c_out = NULL; 1274 } 1275 1276 return (ret); 1277 } 1278 1279 1280 static void 1281 print_stuff(BIO * bio, SSL * s, int full) 1282 { 1283 X509 *peer = NULL; 1284 char *p; 1285 static const char *space = " "; 1286 char buf[BUFSIZ]; 1287 STACK_OF(X509) * sk; 1288 STACK_OF(X509_NAME) * sk2; 1289 const SSL_CIPHER *c; 1290 X509_NAME *xn; 1291 int j, i; 1292 unsigned char *exportedkeymat; 1293 1294 if (full) { 1295 int got_a_chain = 0; 1296 1297 sk = SSL_get_peer_cert_chain(s); 1298 if (sk != NULL) { 1299 got_a_chain = 1; /* we don't have it for SSL2 1300 * (yet) */ 1301 1302 BIO_printf(bio, "---\nCertificate chain\n"); 1303 for (i = 0; i < sk_X509_num(sk); i++) { 1304 X509_NAME_oneline(X509_get_subject_name( 1305 sk_X509_value(sk, i)), buf, sizeof buf); 1306 BIO_printf(bio, "%2d s:%s\n", i, buf); 1307 X509_NAME_oneline(X509_get_issuer_name( 1308 sk_X509_value(sk, i)), buf, sizeof buf); 1309 BIO_printf(bio, " i:%s\n", buf); 1310 if (c_showcerts) 1311 PEM_write_bio_X509(bio, sk_X509_value(sk, i)); 1312 } 1313 } 1314 BIO_printf(bio, "---\n"); 1315 peer = SSL_get_peer_certificate(s); 1316 if (peer != NULL) { 1317 BIO_printf(bio, "Server certificate\n"); 1318 if (!(c_showcerts && got_a_chain)) /* Redundant if we 1319 * showed the whole 1320 * chain */ 1321 PEM_write_bio_X509(bio, peer); 1322 X509_NAME_oneline(X509_get_subject_name(peer), 1323 buf, sizeof buf); 1324 BIO_printf(bio, "subject=%s\n", buf); 1325 X509_NAME_oneline(X509_get_issuer_name(peer), 1326 buf, sizeof buf); 1327 BIO_printf(bio, "issuer=%s\n", buf); 1328 } else 1329 BIO_printf(bio, "no peer certificate available\n"); 1330 1331 sk2 = SSL_get_client_CA_list(s); 1332 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { 1333 BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); 1334 for (i = 0; i < sk_X509_NAME_num(sk2); i++) { 1335 xn = sk_X509_NAME_value(sk2, i); 1336 X509_NAME_oneline(xn, buf, sizeof(buf)); 1337 BIO_write(bio, buf, strlen(buf)); 1338 BIO_write(bio, "\n", 1); 1339 } 1340 } else { 1341 BIO_printf(bio, "---\nNo client certificate CA names sent\n"); 1342 } 1343 p = SSL_get_shared_ciphers(s, buf, sizeof buf); 1344 if (p != NULL) { 1345 /* 1346 * This works only for SSL 2. In later protocol 1347 * versions, the client does not know what other 1348 * ciphers (in addition to the one to be used in the 1349 * current connection) the server supports. 1350 */ 1351 1352 BIO_printf(bio, "---\nCiphers common between both SSL endpoints:\n"); 1353 j = i = 0; 1354 while (*p) { 1355 if (*p == ':') { 1356 BIO_write(bio, space, 15 - j % 25); 1357 i++; 1358 j = 0; 1359 BIO_write(bio, ((i % 3) ? " " : "\n"), 1); 1360 } else { 1361 BIO_write(bio, p, 1); 1362 j++; 1363 } 1364 p++; 1365 } 1366 BIO_write(bio, "\n", 1); 1367 } 1368 BIO_printf(bio, "---\nSSL handshake has read %ld bytes and written %ld bytes\n", 1369 BIO_number_read(SSL_get_rbio(s)), 1370 BIO_number_written(SSL_get_wbio(s))); 1371 } 1372 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, ")); 1373 c = SSL_get_current_cipher(s); 1374 BIO_printf(bio, "%s, Cipher is %s\n", 1375 SSL_CIPHER_get_version(c), 1376 SSL_CIPHER_get_name(c)); 1377 if (peer != NULL) { 1378 EVP_PKEY *pktmp; 1379 pktmp = X509_get_pubkey(peer); 1380 BIO_printf(bio, "Server public key is %d bit\n", 1381 EVP_PKEY_bits(pktmp)); 1382 EVP_PKEY_free(pktmp); 1383 } 1384 BIO_printf(bio, "Secure Renegotiation IS%s supported\n", 1385 SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); 1386 1387 /* Compression is not supported and will always be none. */ 1388 BIO_printf(bio, "Compression: NONE\n"); 1389 BIO_printf(bio, "Expansion: NONE\n"); 1390 1391 #ifdef SSL_DEBUG 1392 { 1393 /* Print out local port of connection: useful for debugging */ 1394 int sock; 1395 struct sockaddr_in ladd; 1396 socklen_t ladd_size = sizeof(ladd); 1397 sock = SSL_get_fd(s); 1398 getsockname(sock, (struct sockaddr *) & ladd, &ladd_size); 1399 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port)); 1400 } 1401 #endif 1402 1403 if (next_proto.status != -1) { 1404 const unsigned char *proto; 1405 unsigned int proto_len; 1406 SSL_get0_next_proto_negotiated(s, &proto, &proto_len); 1407 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); 1408 BIO_write(bio, proto, proto_len); 1409 BIO_write(bio, "\n", 1); 1410 } 1411 { 1412 const unsigned char *proto; 1413 unsigned int proto_len; 1414 SSL_get0_alpn_selected(s, &proto, &proto_len); 1415 if (proto_len > 0) { 1416 BIO_printf(bio, "ALPN protocol: "); 1417 BIO_write(bio, proto, proto_len); 1418 BIO_write(bio, "\n", 1); 1419 } else 1420 BIO_printf(bio, "No ALPN negotiated\n"); 1421 } 1422 1423 #ifndef OPENSSL_NO_SRTP 1424 { 1425 SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(s); 1426 1427 if (srtp_profile) 1428 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", 1429 srtp_profile->name); 1430 } 1431 #endif 1432 1433 SSL_SESSION_print(bio, SSL_get_session(s)); 1434 if (keymatexportlabel != NULL) { 1435 BIO_printf(bio, "Keying material exporter:\n"); 1436 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); 1437 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); 1438 exportedkeymat = malloc(keymatexportlen); 1439 if (exportedkeymat != NULL) { 1440 if (!SSL_export_keying_material(s, exportedkeymat, 1441 keymatexportlen, 1442 keymatexportlabel, 1443 strlen(keymatexportlabel), 1444 NULL, 0, 0)) { 1445 BIO_printf(bio, " Error\n"); 1446 } else { 1447 BIO_printf(bio, " Keying material: "); 1448 for (i = 0; i < keymatexportlen; i++) 1449 BIO_printf(bio, "%02X", 1450 exportedkeymat[i]); 1451 BIO_printf(bio, "\n"); 1452 } 1453 free(exportedkeymat); 1454 } 1455 } 1456 BIO_printf(bio, "---\n"); 1457 if (peer != NULL) 1458 X509_free(peer); 1459 /* flush, or debugging output gets mixed with http response */ 1460 (void) BIO_flush(bio); 1461 } 1462 1463 1464 static int 1465 ocsp_resp_cb(SSL * s, void *arg) 1466 { 1467 const unsigned char *p; 1468 int len; 1469 OCSP_RESPONSE *rsp; 1470 len = SSL_get_tlsext_status_ocsp_resp(s, &p); 1471 BIO_puts(arg, "OCSP response: "); 1472 if (!p) { 1473 BIO_puts(arg, "no response sent\n"); 1474 return 1; 1475 } 1476 rsp = d2i_OCSP_RESPONSE(NULL, &p, len); 1477 if (!rsp) { 1478 BIO_puts(arg, "response parse error\n"); 1479 BIO_dump_indent(arg, (char *) p, len, 4); 1480 return 0; 1481 } 1482 BIO_puts(arg, "\n======================================\n"); 1483 OCSP_RESPONSE_print(arg, rsp, 0); 1484 BIO_puts(arg, "======================================\n"); 1485 OCSP_RESPONSE_free(rsp); 1486 return 1; 1487 } 1488 1489