1 /* apps/s_client.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58 /* ====================================================================
59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111 /* ====================================================================
112 * Copyright 2005 Nokia. All rights reserved.
113 *
114 * The portions of the attached software ("Contribution") is developed by
115 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
116 * license.
117 *
118 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
119 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
120 * support (see RFC 4279) to OpenSSL.
121 *
122 * No patent licenses or other rights except those expressly stated in
123 * the OpenSSL open source license shall be deemed granted or received
124 * expressly, by implication, estoppel, or otherwise.
125 *
126 * No assurances are provided by Nokia that the Contribution does not
127 * infringe the patent or other intellectual property rights of any third
128 * party or that the license provides you with all the necessary rights
129 * to make use of the Contribution.
130 *
131 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
132 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
133 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
134 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
135 * OTHERWISE.
136 */
137
138 #include <assert.h>
139 #include <ctype.h>
140 #include <stdio.h>
141 #include <stdlib.h>
142 #include <string.h>
143 #include <openssl/e_os2.h>
144 #ifdef OPENSSL_NO_STDIO
145 # define APPS_WIN16
146 #endif
147
148 /*
149 * With IPv6, it looks like Digital has mixed up the proper order of
150 * recursive header file inclusion, resulting in the compiler complaining
151 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
152 * needed to have fileno() declared correctly... So let's define u_int
153 */
154 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
155 # define __U_INT
156 typedef unsigned int u_int;
157 #endif
158
159 #define USE_SOCKETS
160 #include "apps.h"
161 #include <openssl/x509.h>
162 #include <openssl/ssl.h>
163 #include <openssl/err.h>
164 #include <openssl/pem.h>
165 #include <openssl/rand.h>
166 #include <openssl/ocsp.h>
167 #include <openssl/bn.h>
168 #ifndef OPENSSL_NO_SRP
169 # include <openssl/srp.h>
170 #endif
171 #include "s_apps.h"
172 #include "timeouts.h"
173
174 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
175 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
176 # undef FIONBIO
177 #endif
178
179 #if defined(OPENSSL_SYS_BEOS_R5)
180 # include <fcntl.h>
181 #endif
182
183 #undef PROG
184 #define PROG s_client_main
185
186 /*
187 * #define SSL_HOST_NAME "www.netscape.com"
188 */
189 /*
190 * #define SSL_HOST_NAME "193.118.187.102"
191 */
192 #define SSL_HOST_NAME "localhost"
193
194 /* no default cert. */
195 /*
196 * #define TEST_CERT "client.pem"
197 */
198
199 #undef BUFSIZZ
200 #define BUFSIZZ 1024*8
201
202 extern int verify_depth;
203 extern int verify_error;
204 extern int verify_return_error;
205 extern int verify_quiet;
206
207 #ifdef FIONBIO
208 static int c_nbio = 0;
209 #endif
210 static int c_Pause = 0;
211 static int c_debug = 0;
212 #ifndef OPENSSL_NO_TLSEXT
213 static int c_tlsextdebug = 0;
214 static int c_status_req = 0;
215 #endif
216 static int c_msg = 0;
217 static int c_showcerts = 0;
218
219 static char *keymatexportlabel = NULL;
220 static int keymatexportlen = 20;
221
222 static void sc_usage(void);
223 static void print_stuff(BIO *berr, SSL *con, int full);
224 #ifndef OPENSSL_NO_TLSEXT
225 static int ocsp_resp_cb(SSL *s, void *arg);
226 #endif
227 static BIO *bio_c_out = NULL;
228 static BIO *bio_c_msg = NULL;
229 static int c_quiet = 0;
230 static int c_ign_eof = 0;
231 static int c_brief = 0;
232
233 #ifndef OPENSSL_NO_PSK
234 /* Default PSK identity and key */
235 static char *psk_identity = "Client_identity";
236 /*
237 * char *psk_key=NULL; by default PSK is not used
238 */
239
psk_client_cb(SSL * ssl,const char * hint,char * identity,unsigned int max_identity_len,unsigned char * psk,unsigned int max_psk_len)240 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
241 unsigned int max_identity_len,
242 unsigned char *psk,
243 unsigned int max_psk_len)
244 {
245 unsigned int psk_len = 0;
246 int ret;
247 BIGNUM *bn = NULL;
248
249 if (c_debug)
250 BIO_printf(bio_c_out, "psk_client_cb\n");
251 if (!hint) {
252 /* no ServerKeyExchange message */
253 if (c_debug)
254 BIO_printf(bio_c_out,
255 "NULL received PSK identity hint, continuing anyway\n");
256 } else if (c_debug)
257 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
258
259 /*
260 * lookup PSK identity and PSK key based on the given identity hint here
261 */
262 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
263 if (ret < 0 || (unsigned int)ret > max_identity_len)
264 goto out_err;
265 if (c_debug)
266 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
267 ret);
268 ret = BN_hex2bn(&bn, psk_key);
269 if (!ret) {
270 BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n",
271 psk_key);
272 if (bn)
273 BN_free(bn);
274 return 0;
275 }
276
277 if ((unsigned int)BN_num_bytes(bn) > max_psk_len) {
278 BIO_printf(bio_err,
279 "psk buffer of callback is too small (%d) for key (%d)\n",
280 max_psk_len, BN_num_bytes(bn));
281 BN_free(bn);
282 return 0;
283 }
284
285 psk_len = BN_bn2bin(bn, psk);
286 BN_free(bn);
287 if (psk_len == 0)
288 goto out_err;
289
290 if (c_debug)
291 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
292
293 return psk_len;
294 out_err:
295 if (c_debug)
296 BIO_printf(bio_err, "Error in PSK client callback\n");
297 return 0;
298 }
299 #endif
300
sc_usage(void)301 static void sc_usage(void)
302 {
303 BIO_printf(bio_err, "usage: s_client args\n");
304 BIO_printf(bio_err, "\n");
305 BIO_printf(bio_err, " -host host - use -connect instead\n");
306 BIO_printf(bio_err, " -port port - use -connect instead\n");
307 BIO_printf(bio_err,
308 " -connect host:port - who to connect to (default is %s:%s)\n",
309 SSL_HOST_NAME, PORT_STR);
310 BIO_printf(bio_err,
311 " -verify_host host - check peer certificate matches \"host\"\n");
312 BIO_printf(bio_err,
313 " -verify_email email - check peer certificate matches \"email\"\n");
314 BIO_printf(bio_err,
315 " -verify_ip ipaddr - check peer certificate matches \"ipaddr\"\n");
316
317 BIO_printf(bio_err,
318 " -verify arg - turn on peer certificate verification\n");
319 BIO_printf(bio_err,
320 " -verify_return_error - return verification errors\n");
321 BIO_printf(bio_err,
322 " -cert arg - certificate file to use, PEM format assumed\n");
323 BIO_printf(bio_err,
324 " -certform arg - certificate format (PEM or DER) PEM default\n");
325 BIO_printf(bio_err,
326 " -key arg - Private key file to use, in cert file if\n");
327 BIO_printf(bio_err, " not specified but cert file is.\n");
328 BIO_printf(bio_err,
329 " -keyform arg - key format (PEM or DER) PEM default\n");
330 BIO_printf(bio_err,
331 " -pass arg - private key file pass phrase source\n");
332 BIO_printf(bio_err, " -CApath arg - PEM format directory of CA's\n");
333 BIO_printf(bio_err, " -CAfile arg - PEM format file of CA's\n");
334 BIO_printf(bio_err,
335 " -no_alt_chains - only ever use the first certificate chain found\n");
336 BIO_printf(bio_err,
337 " -reconnect - Drop and re-make the connection with the same Session-ID\n");
338 BIO_printf(bio_err,
339 " -pause - sleep(1) after each read(2) and write(2) system call\n");
340 BIO_printf(bio_err,
341 " -prexit - print session information even on connection failure\n");
342 BIO_printf(bio_err,
343 " -showcerts - show all certificates in the chain\n");
344 BIO_printf(bio_err, " -debug - extra output\n");
345 #ifdef WATT32
346 BIO_printf(bio_err, " -wdebug - WATT-32 tcp debugging\n");
347 #endif
348 BIO_printf(bio_err, " -msg - Show protocol messages\n");
349 BIO_printf(bio_err, " -nbio_test - more ssl protocol testing\n");
350 BIO_printf(bio_err, " -state - print the 'ssl' states\n");
351 #ifdef FIONBIO
352 BIO_printf(bio_err, " -nbio - Run with non-blocking IO\n");
353 #endif
354 BIO_printf(bio_err,
355 " -crlf - convert LF from terminal into CRLF\n");
356 BIO_printf(bio_err, " -quiet - no s_client output\n");
357 BIO_printf(bio_err,
358 " -ign_eof - ignore input eof (default when -quiet)\n");
359 BIO_printf(bio_err, " -no_ign_eof - don't ignore input eof\n");
360 #ifndef OPENSSL_NO_PSK
361 BIO_printf(bio_err, " -psk_identity arg - PSK identity\n");
362 BIO_printf(bio_err, " -psk arg - PSK in hex (without 0x)\n");
363 # ifndef OPENSSL_NO_JPAKE
364 BIO_printf(bio_err, " -jpake arg - JPAKE secret to use\n");
365 # endif
366 #endif
367 #ifndef OPENSSL_NO_SRP
368 BIO_printf(bio_err,
369 " -srpuser user - SRP authentification for 'user'\n");
370 BIO_printf(bio_err, " -srppass arg - password for 'user'\n");
371 BIO_printf(bio_err,
372 " -srp_lateuser - SRP username into second ClientHello message\n");
373 BIO_printf(bio_err,
374 " -srp_moregroups - Tolerate other than the known g N values.\n");
375 BIO_printf(bio_err,
376 " -srp_strength int - minimal length in bits for N (default %d).\n",
377 SRP_MINIMAL_N);
378 #endif
379 BIO_printf(bio_err, " -ssl2 - just use SSLv2\n");
380 #ifndef OPENSSL_NO_SSL3_METHOD
381 BIO_printf(bio_err, " -ssl3 - just use SSLv3\n");
382 #endif
383 BIO_printf(bio_err, " -tls1_2 - just use TLSv1.2\n");
384 BIO_printf(bio_err, " -tls1_1 - just use TLSv1.1\n");
385 BIO_printf(bio_err, " -tls1 - just use TLSv1\n");
386 BIO_printf(bio_err, " -dtls1 - just use DTLSv1\n");
387 BIO_printf(bio_err, " -fallback_scsv - send TLS_FALLBACK_SCSV\n");
388 BIO_printf(bio_err, " -mtu - set the link layer MTU\n");
389 BIO_printf(bio_err,
390 " -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
391 BIO_printf(bio_err,
392 " -bugs - Switch on all SSL implementation bug workarounds\n");
393 BIO_printf(bio_err,
394 " -serverpref - Use server's cipher preferences (only SSLv2)\n");
395 BIO_printf(bio_err,
396 " -cipher - preferred cipher to use, use the 'openssl ciphers'\n");
397 BIO_printf(bio_err,
398 " command to see what is available\n");
399 BIO_printf(bio_err,
400 " -starttls prot - use the STARTTLS command before starting TLS\n");
401 BIO_printf(bio_err,
402 " for those protocols that support it, where\n");
403 BIO_printf(bio_err,
404 " 'prot' defines which one to assume. Currently,\n");
405 BIO_printf(bio_err,
406 " only \"smtp\", \"pop3\", \"imap\", \"ftp\" and \"xmpp\"\n");
407 BIO_printf(bio_err, " are supported.\n");
408 #ifndef OPENSSL_NO_ENGINE
409 BIO_printf(bio_err,
410 " -engine id - Initialise and use the specified engine\n");
411 #endif
412 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
413 LIST_SEPARATOR_CHAR);
414 BIO_printf(bio_err, " -sess_out arg - file to write SSL session to\n");
415 BIO_printf(bio_err, " -sess_in arg - file to read SSL session from\n");
416 #ifndef OPENSSL_NO_TLSEXT
417 BIO_printf(bio_err,
418 " -servername host - Set TLS extension servername in ClientHello\n");
419 BIO_printf(bio_err,
420 " -tlsextdebug - hex dump of all TLS extensions received\n");
421 BIO_printf(bio_err,
422 " -status - request certificate status from server\n");
423 BIO_printf(bio_err,
424 " -no_ticket - disable use of RFC4507bis session tickets\n");
425 BIO_printf(bio_err,
426 " -serverinfo types - send empty ClientHello extensions (comma-separated numbers)\n");
427 BIO_printf(bio_err,
428 " -curves arg - Elliptic curves to advertise (colon-separated list)\n");
429 BIO_printf(bio_err,
430 " -sigalgs arg - Signature algorithms to support (colon-separated list)\n");
431 BIO_printf(bio_err,
432 " -client_sigalgs arg - Signature algorithms to support for client\n");
433 BIO_printf(bio_err,
434 " certificate authentication (colon-separated list)\n");
435 #endif
436 #ifndef OPENSSL_NO_NEXTPROTONEG
437 BIO_printf(bio_err,
438 " -nextprotoneg arg - enable NPN extension, considering named protocols supported (comma-separated list)\n");
439 #endif
440 BIO_printf(bio_err,
441 " -alpn arg - enable ALPN extension, considering named protocols supported (comma-separated list)\n");
442 BIO_printf(bio_err,
443 " -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
444 #ifndef OPENSSL_NO_SRTP
445 BIO_printf(bio_err,
446 " -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
447 #endif
448 BIO_printf(bio_err,
449 " -keymatexport label - Export keying material using label\n");
450 BIO_printf(bio_err,
451 " -keymatexportlen len - Export len bytes of keying material (default 20)\n");
452 }
453
454 #ifndef OPENSSL_NO_TLSEXT
455
456 /* This is a context that we pass to callbacks */
457 typedef struct tlsextctx_st {
458 BIO *biodebug;
459 int ack;
460 } tlsextctx;
461
ssl_servername_cb(SSL * s,int * ad,void * arg)462 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
463 {
464 tlsextctx *p = (tlsextctx *) arg;
465 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
466 if (SSL_get_servername_type(s) != -1)
467 p->ack = !SSL_session_reused(s) && hn != NULL;
468 else
469 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
470
471 return SSL_TLSEXT_ERR_OK;
472 }
473
474 # ifndef OPENSSL_NO_SRP
475
476 /* This is a context that we pass to all callbacks */
477 typedef struct srp_arg_st {
478 char *srppassin;
479 char *srplogin;
480 int msg; /* copy from c_msg */
481 int debug; /* copy from c_debug */
482 int amp; /* allow more groups */
483 int strength /* minimal size for N */ ;
484 } SRP_ARG;
485
486 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
487
srp_Verify_N_and_g(BIGNUM * N,BIGNUM * g)488 static int srp_Verify_N_and_g(BIGNUM *N, BIGNUM *g)
489 {
490 BN_CTX *bn_ctx = BN_CTX_new();
491 BIGNUM *p = BN_new();
492 BIGNUM *r = BN_new();
493 int ret =
494 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
495 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
496 p != NULL && BN_rshift1(p, N) &&
497 /* p = (N-1)/2 */
498 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
499 r != NULL &&
500 /* verify g^((N-1)/2) == -1 (mod N) */
501 BN_mod_exp(r, g, p, N, bn_ctx) &&
502 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
503
504 if (r)
505 BN_free(r);
506 if (p)
507 BN_free(p);
508 if (bn_ctx)
509 BN_CTX_free(bn_ctx);
510 return ret;
511 }
512
513 /*-
514 * This callback is used here for two purposes:
515 * - extended debugging
516 * - making some primality tests for unknown groups
517 * The callback is only called for a non default group.
518 *
519 * An application does not need the call back at all if
520 * only the stanard groups are used. In real life situations,
521 * client and server already share well known groups,
522 * thus there is no need to verify them.
523 * Furthermore, in case that a server actually proposes a group that
524 * is not one of those defined in RFC 5054, it is more appropriate
525 * to add the group to a static list and then compare since
526 * primality tests are rather cpu consuming.
527 */
528
ssl_srp_verify_param_cb(SSL * s,void * arg)529 static int MS_CALLBACK ssl_srp_verify_param_cb(SSL *s, void *arg)
530 {
531 SRP_ARG *srp_arg = (SRP_ARG *)arg;
532 BIGNUM *N = NULL, *g = NULL;
533 if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
534 return 0;
535 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
536 BIO_printf(bio_err, "SRP parameters:\n");
537 BIO_printf(bio_err, "\tN=");
538 BN_print(bio_err, N);
539 BIO_printf(bio_err, "\n\tg=");
540 BN_print(bio_err, g);
541 BIO_printf(bio_err, "\n");
542 }
543
544 if (SRP_check_known_gN_param(g, N))
545 return 1;
546
547 if (srp_arg->amp == 1) {
548 if (srp_arg->debug)
549 BIO_printf(bio_err,
550 "SRP param N and g are not known params, going to check deeper.\n");
551
552 /*
553 * The srp_moregroups is a real debugging feature. Implementors
554 * should rather add the value to the known ones. The minimal size
555 * has already been tested.
556 */
557 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
558 return 1;
559 }
560 BIO_printf(bio_err, "SRP param N and g rejected.\n");
561 return 0;
562 }
563
564 # define PWD_STRLEN 1024
565
ssl_give_srp_client_pwd_cb(SSL * s,void * arg)566 static char *MS_CALLBACK ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
567 {
568 SRP_ARG *srp_arg = (SRP_ARG *)arg;
569 char *pass = (char *)OPENSSL_malloc(PWD_STRLEN + 1);
570 PW_CB_DATA cb_tmp;
571 int l;
572
573 if (!pass) {
574 BIO_printf(bio_err, "Malloc failure\n");
575 return NULL;
576 }
577
578 cb_tmp.password = (char *)srp_arg->srppassin;
579 cb_tmp.prompt_info = "SRP user";
580 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
581 BIO_printf(bio_err, "Can't read Password\n");
582 OPENSSL_free(pass);
583 return NULL;
584 }
585 *(pass + l) = '\0';
586
587 return pass;
588 }
589
590 # endif
591 # ifndef OPENSSL_NO_SRTP
592 char *srtp_profiles = NULL;
593 # endif
594
595 # ifndef OPENSSL_NO_NEXTPROTONEG
596 /* This the context that we pass to next_proto_cb */
597 typedef struct tlsextnextprotoctx_st {
598 unsigned char *data;
599 unsigned short len;
600 int status;
601 } tlsextnextprotoctx;
602
603 static tlsextnextprotoctx next_proto;
604
next_proto_cb(SSL * s,unsigned char ** out,unsigned char * outlen,const unsigned char * in,unsigned int inlen,void * arg)605 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
606 const unsigned char *in, unsigned int inlen,
607 void *arg)
608 {
609 tlsextnextprotoctx *ctx = arg;
610
611 if (!c_quiet) {
612 /* We can assume that |in| is syntactically valid. */
613 unsigned i;
614 BIO_printf(bio_c_out, "Protocols advertised by server: ");
615 for (i = 0; i < inlen;) {
616 if (i)
617 BIO_write(bio_c_out, ", ", 2);
618 BIO_write(bio_c_out, &in[i + 1], in[i]);
619 i += in[i] + 1;
620 }
621 BIO_write(bio_c_out, "\n", 1);
622 }
623
624 ctx->status =
625 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
626 return SSL_TLSEXT_ERR_OK;
627 }
628 # endif /* ndef OPENSSL_NO_NEXTPROTONEG */
629
serverinfo_cli_parse_cb(SSL * s,unsigned int ext_type,const unsigned char * in,size_t inlen,int * al,void * arg)630 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
631 const unsigned char *in, size_t inlen,
632 int *al, void *arg)
633 {
634 char pem_name[100];
635 unsigned char ext_buf[4 + 65536];
636
637 /* Reconstruct the type/len fields prior to extension data */
638 ext_buf[0] = ext_type >> 8;
639 ext_buf[1] = ext_type & 0xFF;
640 ext_buf[2] = inlen >> 8;
641 ext_buf[3] = inlen & 0xFF;
642 memcpy(ext_buf + 4, in, inlen);
643
644 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
645 ext_type);
646 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
647 return 1;
648 }
649
650 #endif
651
652 enum {
653 PROTO_OFF = 0,
654 PROTO_SMTP,
655 PROTO_POP3,
656 PROTO_IMAP,
657 PROTO_FTP,
658 PROTO_XMPP
659 };
660
661 int MAIN(int, char **);
662
MAIN(int argc,char ** argv)663 int MAIN(int argc, char **argv)
664 {
665 int build_chain = 0;
666 SSL *con = NULL;
667 #ifndef OPENSSL_NO_KRB5
668 KSSL_CTX *kctx;
669 #endif
670 int s, k, width, state = 0;
671 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
672 int cbuf_len, cbuf_off;
673 int sbuf_len, sbuf_off;
674 fd_set readfds, writefds;
675 short port = PORT;
676 int full_log = 1;
677 char *host = SSL_HOST_NAME;
678 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
679 int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
680 char *passarg = NULL, *pass = NULL;
681 X509 *cert = NULL;
682 EVP_PKEY *key = NULL;
683 STACK_OF(X509) *chain = NULL;
684 char *CApath = NULL, *CAfile = NULL;
685 char *chCApath = NULL, *chCAfile = NULL;
686 char *vfyCApath = NULL, *vfyCAfile = NULL;
687 int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE;
688 int crlf = 0;
689 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
690 SSL_CTX *ctx = NULL;
691 int ret = 1, in_init = 1, i, nbio_test = 0;
692 int starttls_proto = PROTO_OFF;
693 int prexit = 0;
694 X509_VERIFY_PARAM *vpm = NULL;
695 int badarg = 0;
696 const SSL_METHOD *meth = NULL;
697 int socket_type = SOCK_STREAM;
698 BIO *sbio;
699 char *inrand = NULL;
700 int mbuf_len = 0;
701 struct timeval timeout, *timeoutp;
702 #ifndef OPENSSL_NO_ENGINE
703 char *engine_id = NULL;
704 char *ssl_client_engine_id = NULL;
705 ENGINE *ssl_client_engine = NULL;
706 #endif
707 ENGINE *e = NULL;
708 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
709 struct timeval tv;
710 # if defined(OPENSSL_SYS_BEOS_R5)
711 int stdin_set = 0;
712 # endif
713 #endif
714 #ifndef OPENSSL_NO_TLSEXT
715 char *servername = NULL;
716 tlsextctx tlsextcbp = { NULL, 0 };
717 # ifndef OPENSSL_NO_NEXTPROTONEG
718 const char *next_proto_neg_in = NULL;
719 # endif
720 const char *alpn_in = NULL;
721 # define MAX_SI_TYPES 100
722 unsigned short serverinfo_types[MAX_SI_TYPES];
723 int serverinfo_types_count = 0;
724 #endif
725 char *sess_in = NULL;
726 char *sess_out = NULL;
727 struct sockaddr peer;
728 int peerlen = sizeof(peer);
729 int fallback_scsv = 0;
730 int enable_timeouts = 0;
731 long socket_mtu = 0;
732 #ifndef OPENSSL_NO_JPAKE
733 static char *jpake_secret = NULL;
734 # define no_jpake !jpake_secret
735 #else
736 # define no_jpake 1
737 #endif
738 #ifndef OPENSSL_NO_SRP
739 char *srppass = NULL;
740 int srp_lateuser = 0;
741 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
742 #endif
743 SSL_EXCERT *exc = NULL;
744
745 SSL_CONF_CTX *cctx = NULL;
746 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
747
748 char *crl_file = NULL;
749 int crl_format = FORMAT_PEM;
750 int crl_download = 0;
751 STACK_OF(X509_CRL) *crls = NULL;
752
753 meth = SSLv23_client_method();
754
755 apps_startup();
756 c_Pause = 0;
757 c_quiet = 0;
758 c_ign_eof = 0;
759 c_debug = 0;
760 c_msg = 0;
761 c_showcerts = 0;
762
763 if (bio_err == NULL)
764 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
765
766 if (!load_config(bio_err, NULL))
767 goto end;
768
769 cctx = SSL_CONF_CTX_new();
770 if (!cctx)
771 goto end;
772 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
773 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CMDLINE);
774
775 if (((cbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) ||
776 ((sbuf = OPENSSL_malloc(BUFSIZZ)) == NULL) ||
777 ((mbuf = OPENSSL_malloc(BUFSIZZ)) == NULL)) {
778 BIO_printf(bio_err, "out of memory\n");
779 goto end;
780 }
781
782 verify_depth = 0;
783 verify_error = X509_V_OK;
784 #ifdef FIONBIO
785 c_nbio = 0;
786 #endif
787
788 argc--;
789 argv++;
790 while (argc >= 1) {
791 if (strcmp(*argv, "-host") == 0) {
792 if (--argc < 1)
793 goto bad;
794 host = *(++argv);
795 } else if (strcmp(*argv, "-port") == 0) {
796 if (--argc < 1)
797 goto bad;
798 port = atoi(*(++argv));
799 if (port == 0)
800 goto bad;
801 } else if (strcmp(*argv, "-connect") == 0) {
802 if (--argc < 1)
803 goto bad;
804 if (!extract_host_port(*(++argv), &host, NULL, &port))
805 goto bad;
806 } else if (strcmp(*argv, "-verify") == 0) {
807 verify = SSL_VERIFY_PEER;
808 if (--argc < 1)
809 goto bad;
810 verify_depth = atoi(*(++argv));
811 if (!c_quiet)
812 BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
813 } else if (strcmp(*argv, "-cert") == 0) {
814 if (--argc < 1)
815 goto bad;
816 cert_file = *(++argv);
817 } else if (strcmp(*argv, "-CRL") == 0) {
818 if (--argc < 1)
819 goto bad;
820 crl_file = *(++argv);
821 } else if (strcmp(*argv, "-crl_download") == 0)
822 crl_download = 1;
823 else if (strcmp(*argv, "-sess_out") == 0) {
824 if (--argc < 1)
825 goto bad;
826 sess_out = *(++argv);
827 } else if (strcmp(*argv, "-sess_in") == 0) {
828 if (--argc < 1)
829 goto bad;
830 sess_in = *(++argv);
831 } else if (strcmp(*argv, "-certform") == 0) {
832 if (--argc < 1)
833 goto bad;
834 cert_format = str2fmt(*(++argv));
835 } else if (strcmp(*argv, "-CRLform") == 0) {
836 if (--argc < 1)
837 goto bad;
838 crl_format = str2fmt(*(++argv));
839 } else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
840 if (badarg)
841 goto bad;
842 continue;
843 } else if (strcmp(*argv, "-verify_return_error") == 0)
844 verify_return_error = 1;
845 else if (strcmp(*argv, "-verify_quiet") == 0)
846 verify_quiet = 1;
847 else if (strcmp(*argv, "-brief") == 0) {
848 c_brief = 1;
849 verify_quiet = 1;
850 c_quiet = 1;
851 } else if (args_excert(&argv, &argc, &badarg, bio_err, &exc)) {
852 if (badarg)
853 goto bad;
854 continue;
855 } else if (args_ssl(&argv, &argc, cctx, &badarg, bio_err, &ssl_args)) {
856 if (badarg)
857 goto bad;
858 continue;
859 } else if (strcmp(*argv, "-prexit") == 0)
860 prexit = 1;
861 else if (strcmp(*argv, "-crlf") == 0)
862 crlf = 1;
863 else if (strcmp(*argv, "-quiet") == 0) {
864 c_quiet = 1;
865 c_ign_eof = 1;
866 } else if (strcmp(*argv, "-ign_eof") == 0)
867 c_ign_eof = 1;
868 else if (strcmp(*argv, "-no_ign_eof") == 0)
869 c_ign_eof = 0;
870 else if (strcmp(*argv, "-pause") == 0)
871 c_Pause = 1;
872 else if (strcmp(*argv, "-debug") == 0)
873 c_debug = 1;
874 #ifndef OPENSSL_NO_TLSEXT
875 else if (strcmp(*argv, "-tlsextdebug") == 0)
876 c_tlsextdebug = 1;
877 else if (strcmp(*argv, "-status") == 0)
878 c_status_req = 1;
879 #endif
880 #ifdef WATT32
881 else if (strcmp(*argv, "-wdebug") == 0)
882 dbug_init();
883 #endif
884 else if (strcmp(*argv, "-msg") == 0)
885 c_msg = 1;
886 else if (strcmp(*argv, "-msgfile") == 0) {
887 if (--argc < 1)
888 goto bad;
889 bio_c_msg = BIO_new_file(*(++argv), "w");
890 }
891 #ifndef OPENSSL_NO_SSL_TRACE
892 else if (strcmp(*argv, "-trace") == 0)
893 c_msg = 2;
894 #endif
895 else if (strcmp(*argv, "-showcerts") == 0)
896 c_showcerts = 1;
897 else if (strcmp(*argv, "-nbio_test") == 0)
898 nbio_test = 1;
899 else if (strcmp(*argv, "-state") == 0)
900 state = 1;
901 #ifndef OPENSSL_NO_PSK
902 else if (strcmp(*argv, "-psk_identity") == 0) {
903 if (--argc < 1)
904 goto bad;
905 psk_identity = *(++argv);
906 } else if (strcmp(*argv, "-psk") == 0) {
907 size_t j;
908
909 if (--argc < 1)
910 goto bad;
911 psk_key = *(++argv);
912 for (j = 0; j < strlen(psk_key); j++) {
913 if (isxdigit((unsigned char)psk_key[j]))
914 continue;
915 BIO_printf(bio_err, "Not a hex number '%s'\n", *argv);
916 goto bad;
917 }
918 }
919 #endif
920 #ifndef OPENSSL_NO_SRP
921 else if (strcmp(*argv, "-srpuser") == 0) {
922 if (--argc < 1)
923 goto bad;
924 srp_arg.srplogin = *(++argv);
925 meth = TLSv1_client_method();
926 } else if (strcmp(*argv, "-srppass") == 0) {
927 if (--argc < 1)
928 goto bad;
929 srppass = *(++argv);
930 meth = TLSv1_client_method();
931 } else if (strcmp(*argv, "-srp_strength") == 0) {
932 if (--argc < 1)
933 goto bad;
934 srp_arg.strength = atoi(*(++argv));
935 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
936 srp_arg.strength);
937 meth = TLSv1_client_method();
938 } else if (strcmp(*argv, "-srp_lateuser") == 0) {
939 srp_lateuser = 1;
940 meth = TLSv1_client_method();
941 } else if (strcmp(*argv, "-srp_moregroups") == 0) {
942 srp_arg.amp = 1;
943 meth = TLSv1_client_method();
944 }
945 #endif
946 #ifndef OPENSSL_NO_SSL2
947 else if (strcmp(*argv, "-ssl2") == 0)
948 meth = SSLv2_client_method();
949 #endif
950 #ifndef OPENSSL_NO_SSL3_METHOD
951 else if (strcmp(*argv, "-ssl3") == 0)
952 meth = SSLv3_client_method();
953 #endif
954 #ifndef OPENSSL_NO_TLS1
955 else if (strcmp(*argv, "-tls1_2") == 0)
956 meth = TLSv1_2_client_method();
957 else if (strcmp(*argv, "-tls1_1") == 0)
958 meth = TLSv1_1_client_method();
959 else if (strcmp(*argv, "-tls1") == 0)
960 meth = TLSv1_client_method();
961 #endif
962 #ifndef OPENSSL_NO_DTLS1
963 else if (strcmp(*argv, "-dtls") == 0) {
964 meth = DTLS_client_method();
965 socket_type = SOCK_DGRAM;
966 } else if (strcmp(*argv, "-dtls1") == 0) {
967 meth = DTLSv1_client_method();
968 socket_type = SOCK_DGRAM;
969 } else if (strcmp(*argv, "-dtls1_2") == 0) {
970 meth = DTLSv1_2_client_method();
971 socket_type = SOCK_DGRAM;
972 } else if (strcmp(*argv, "-timeout") == 0)
973 enable_timeouts = 1;
974 else if (strcmp(*argv, "-mtu") == 0) {
975 if (--argc < 1)
976 goto bad;
977 socket_mtu = atol(*(++argv));
978 }
979 #endif
980 else if (strcmp(*argv, "-fallback_scsv") == 0) {
981 fallback_scsv = 1;
982 } else if (strcmp(*argv, "-keyform") == 0) {
983 if (--argc < 1)
984 goto bad;
985 key_format = str2fmt(*(++argv));
986 } else if (strcmp(*argv, "-pass") == 0) {
987 if (--argc < 1)
988 goto bad;
989 passarg = *(++argv);
990 } else if (strcmp(*argv, "-cert_chain") == 0) {
991 if (--argc < 1)
992 goto bad;
993 chain_file = *(++argv);
994 } else if (strcmp(*argv, "-key") == 0) {
995 if (--argc < 1)
996 goto bad;
997 key_file = *(++argv);
998 } else if (strcmp(*argv, "-reconnect") == 0) {
999 reconnect = 5;
1000 } else if (strcmp(*argv, "-CApath") == 0) {
1001 if (--argc < 1)
1002 goto bad;
1003 CApath = *(++argv);
1004 } else if (strcmp(*argv, "-chainCApath") == 0) {
1005 if (--argc < 1)
1006 goto bad;
1007 chCApath = *(++argv);
1008 } else if (strcmp(*argv, "-verifyCApath") == 0) {
1009 if (--argc < 1)
1010 goto bad;
1011 vfyCApath = *(++argv);
1012 } else if (strcmp(*argv, "-build_chain") == 0)
1013 build_chain = 1;
1014 else if (strcmp(*argv, "-CAfile") == 0) {
1015 if (--argc < 1)
1016 goto bad;
1017 CAfile = *(++argv);
1018 } else if (strcmp(*argv, "-chainCAfile") == 0) {
1019 if (--argc < 1)
1020 goto bad;
1021 chCAfile = *(++argv);
1022 } else if (strcmp(*argv, "-verifyCAfile") == 0) {
1023 if (--argc < 1)
1024 goto bad;
1025 vfyCAfile = *(++argv);
1026 }
1027 #ifndef OPENSSL_NO_TLSEXT
1028 # ifndef OPENSSL_NO_NEXTPROTONEG
1029 else if (strcmp(*argv, "-nextprotoneg") == 0) {
1030 if (--argc < 1)
1031 goto bad;
1032 next_proto_neg_in = *(++argv);
1033 }
1034 # endif
1035 else if (strcmp(*argv, "-alpn") == 0) {
1036 if (--argc < 1)
1037 goto bad;
1038 alpn_in = *(++argv);
1039 } else if (strcmp(*argv, "-serverinfo") == 0) {
1040 char *c;
1041 int start = 0;
1042 int len;
1043
1044 if (--argc < 1)
1045 goto bad;
1046 c = *(++argv);
1047 serverinfo_types_count = 0;
1048 len = strlen(c);
1049 for (i = 0; i <= len; ++i) {
1050 if (i == len || c[i] == ',') {
1051 serverinfo_types[serverinfo_types_count]
1052 = atoi(c + start);
1053 serverinfo_types_count++;
1054 start = i + 1;
1055 }
1056 if (serverinfo_types_count == MAX_SI_TYPES)
1057 break;
1058 }
1059 }
1060 #endif
1061 #ifdef FIONBIO
1062 else if (strcmp(*argv, "-nbio") == 0) {
1063 c_nbio = 1;
1064 }
1065 #endif
1066 else if (strcmp(*argv, "-starttls") == 0) {
1067 if (--argc < 1)
1068 goto bad;
1069 ++argv;
1070 if (strcmp(*argv, "smtp") == 0)
1071 starttls_proto = PROTO_SMTP;
1072 else if (strcmp(*argv, "pop3") == 0)
1073 starttls_proto = PROTO_POP3;
1074 else if (strcmp(*argv, "imap") == 0)
1075 starttls_proto = PROTO_IMAP;
1076 else if (strcmp(*argv, "ftp") == 0)
1077 starttls_proto = PROTO_FTP;
1078 else if (strcmp(*argv, "xmpp") == 0)
1079 starttls_proto = PROTO_XMPP;
1080 else
1081 goto bad;
1082 }
1083 #ifndef OPENSSL_NO_ENGINE
1084 else if (strcmp(*argv, "-engine") == 0) {
1085 if (--argc < 1)
1086 goto bad;
1087 engine_id = *(++argv);
1088 } else if (strcmp(*argv, "-ssl_client_engine") == 0) {
1089 if (--argc < 1)
1090 goto bad;
1091 ssl_client_engine_id = *(++argv);
1092 }
1093 #endif
1094 else if (strcmp(*argv, "-rand") == 0) {
1095 if (--argc < 1)
1096 goto bad;
1097 inrand = *(++argv);
1098 }
1099 #ifndef OPENSSL_NO_TLSEXT
1100 else if (strcmp(*argv, "-servername") == 0) {
1101 if (--argc < 1)
1102 goto bad;
1103 servername = *(++argv);
1104 /* meth=TLSv1_client_method(); */
1105 }
1106 #endif
1107 #ifndef OPENSSL_NO_JPAKE
1108 else if (strcmp(*argv, "-jpake") == 0) {
1109 if (--argc < 1)
1110 goto bad;
1111 jpake_secret = *++argv;
1112 }
1113 #endif
1114 #ifndef OPENSSL_NO_SRTP
1115 else if (strcmp(*argv, "-use_srtp") == 0) {
1116 if (--argc < 1)
1117 goto bad;
1118 srtp_profiles = *(++argv);
1119 }
1120 #endif
1121 else if (strcmp(*argv, "-keymatexport") == 0) {
1122 if (--argc < 1)
1123 goto bad;
1124 keymatexportlabel = *(++argv);
1125 } else if (strcmp(*argv, "-keymatexportlen") == 0) {
1126 if (--argc < 1)
1127 goto bad;
1128 keymatexportlen = atoi(*(++argv));
1129 if (keymatexportlen == 0)
1130 goto bad;
1131 } else {
1132 BIO_printf(bio_err, "unknown option %s\n", *argv);
1133 badop = 1;
1134 break;
1135 }
1136 argc--;
1137 argv++;
1138 }
1139 if (badop) {
1140 bad:
1141 sc_usage();
1142 goto end;
1143 }
1144 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1145 if (jpake_secret) {
1146 if (psk_key) {
1147 BIO_printf(bio_err, "Can't use JPAKE and PSK together\n");
1148 goto end;
1149 }
1150 psk_identity = "JPAKE";
1151 }
1152 #endif
1153
1154 OpenSSL_add_ssl_algorithms();
1155 SSL_load_error_strings();
1156
1157 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1158 next_proto.status = -1;
1159 if (next_proto_neg_in) {
1160 next_proto.data =
1161 next_protos_parse(&next_proto.len, next_proto_neg_in);
1162 if (next_proto.data == NULL) {
1163 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1164 goto end;
1165 }
1166 } else
1167 next_proto.data = NULL;
1168 #endif
1169
1170 #ifndef OPENSSL_NO_ENGINE
1171 e = setup_engine(bio_err, engine_id, 1);
1172 if (ssl_client_engine_id) {
1173 ssl_client_engine = ENGINE_by_id(ssl_client_engine_id);
1174 if (!ssl_client_engine) {
1175 BIO_printf(bio_err, "Error getting client auth engine\n");
1176 goto end;
1177 }
1178 }
1179 #endif
1180 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
1181 BIO_printf(bio_err, "Error getting password\n");
1182 goto end;
1183 }
1184
1185 if (key_file == NULL)
1186 key_file = cert_file;
1187
1188 if (key_file) {
1189
1190 key = load_key(bio_err, key_file, key_format, 0, pass, e,
1191 "client certificate private key file");
1192 if (!key) {
1193 ERR_print_errors(bio_err);
1194 goto end;
1195 }
1196
1197 }
1198
1199 if (cert_file) {
1200 cert = load_cert(bio_err, cert_file, cert_format,
1201 NULL, e, "client certificate file");
1202
1203 if (!cert) {
1204 ERR_print_errors(bio_err);
1205 goto end;
1206 }
1207 }
1208
1209 if (chain_file) {
1210 chain = load_certs(bio_err, chain_file, FORMAT_PEM,
1211 NULL, e, "client certificate chain");
1212 if (!chain)
1213 goto end;
1214 }
1215
1216 if (crl_file) {
1217 X509_CRL *crl;
1218 crl = load_crl(crl_file, crl_format);
1219 if (!crl) {
1220 BIO_puts(bio_err, "Error loading CRL\n");
1221 ERR_print_errors(bio_err);
1222 goto end;
1223 }
1224 crls = sk_X509_CRL_new_null();
1225 if (!crls || !sk_X509_CRL_push(crls, crl)) {
1226 BIO_puts(bio_err, "Error adding CRL\n");
1227 ERR_print_errors(bio_err);
1228 X509_CRL_free(crl);
1229 goto end;
1230 }
1231 }
1232
1233 if (!load_excert(&exc, bio_err))
1234 goto end;
1235
1236 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1237 && !RAND_status()) {
1238 BIO_printf(bio_err,
1239 "warning, not much extra random data, consider using the -rand option\n");
1240 }
1241 if (inrand != NULL)
1242 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
1243 app_RAND_load_files(inrand));
1244
1245 if (bio_c_out == NULL) {
1246 if (c_quiet && !c_debug) {
1247 bio_c_out = BIO_new(BIO_s_null());
1248 if (c_msg && !bio_c_msg)
1249 bio_c_msg = BIO_new_fp(stdout, BIO_NOCLOSE);
1250 } else {
1251 if (bio_c_out == NULL)
1252 bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
1253 }
1254 }
1255 #ifndef OPENSSL_NO_SRP
1256 if (!app_passwd(bio_err, srppass, NULL, &srp_arg.srppassin, NULL)) {
1257 BIO_printf(bio_err, "Error getting password\n");
1258 goto end;
1259 }
1260 #endif
1261
1262 ctx = SSL_CTX_new(meth);
1263 if (ctx == NULL) {
1264 ERR_print_errors(bio_err);
1265 goto end;
1266 }
1267
1268 if (vpm)
1269 SSL_CTX_set1_param(ctx, vpm);
1270
1271 if (!args_ssl_call(ctx, bio_err, cctx, ssl_args, 1, no_jpake)) {
1272 ERR_print_errors(bio_err);
1273 goto end;
1274 }
1275
1276 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1277 crls, crl_download)) {
1278 BIO_printf(bio_err, "Error loading store locations\n");
1279 ERR_print_errors(bio_err);
1280 goto end;
1281 }
1282 #ifndef OPENSSL_NO_ENGINE
1283 if (ssl_client_engine) {
1284 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1285 BIO_puts(bio_err, "Error setting client auth engine\n");
1286 ERR_print_errors(bio_err);
1287 ENGINE_free(ssl_client_engine);
1288 goto end;
1289 }
1290 ENGINE_free(ssl_client_engine);
1291 }
1292 #endif
1293
1294 #ifndef OPENSSL_NO_PSK
1295 # ifdef OPENSSL_NO_JPAKE
1296 if (psk_key != NULL)
1297 # else
1298 if (psk_key != NULL || jpake_secret)
1299 # endif
1300 {
1301 if (c_debug)
1302 BIO_printf(bio_c_out,
1303 "PSK key given or JPAKE in use, setting client callback\n");
1304 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1305 }
1306 #endif
1307 #ifndef OPENSSL_NO_SRTP
1308 if (srtp_profiles != NULL)
1309 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1310 #endif
1311 if (exc)
1312 ssl_ctx_set_excert(ctx, exc);
1313
1314 #if !defined(OPENSSL_NO_TLSEXT)
1315 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1316 if (next_proto.data)
1317 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1318 # endif
1319 if (alpn_in) {
1320 unsigned short alpn_len;
1321 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1322
1323 if (alpn == NULL) {
1324 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1325 goto end;
1326 }
1327 SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len);
1328 OPENSSL_free(alpn);
1329 }
1330 #endif
1331 #ifndef OPENSSL_NO_TLSEXT
1332 for (i = 0; i < serverinfo_types_count; i++) {
1333 SSL_CTX_add_client_custom_ext(ctx,
1334 serverinfo_types[i],
1335 NULL, NULL, NULL,
1336 serverinfo_cli_parse_cb, NULL);
1337 }
1338 #endif
1339
1340 if (state)
1341 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1342 #if 0
1343 else
1344 SSL_CTX_set_cipher_list(ctx, getenv("SSL_CIPHER"));
1345 #endif
1346
1347 SSL_CTX_set_verify(ctx, verify, verify_callback);
1348
1349 if ((CAfile || CApath)
1350 && !SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) {
1351 ERR_print_errors(bio_err);
1352 }
1353 if (!SSL_CTX_set_default_verify_paths(ctx)) {
1354 ERR_print_errors(bio_err);
1355 }
1356
1357 ssl_ctx_add_crls(ctx, crls, crl_download);
1358 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1359 goto end;
1360
1361 #ifndef OPENSSL_NO_TLSEXT
1362 if (servername != NULL) {
1363 tlsextcbp.biodebug = bio_err;
1364 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1365 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1366 }
1367 # ifndef OPENSSL_NO_SRP
1368 if (srp_arg.srplogin) {
1369 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1370 BIO_printf(bio_err, "Unable to set SRP username\n");
1371 goto end;
1372 }
1373 srp_arg.msg = c_msg;
1374 srp_arg.debug = c_debug;
1375 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1376 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1377 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1378 if (c_msg || c_debug || srp_arg.amp == 0)
1379 SSL_CTX_set_srp_verify_param_callback(ctx,
1380 ssl_srp_verify_param_cb);
1381 }
1382 # endif
1383 #endif
1384
1385 con = SSL_new(ctx);
1386 if (sess_in) {
1387 SSL_SESSION *sess;
1388 BIO *stmp = BIO_new_file(sess_in, "r");
1389 if (!stmp) {
1390 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1391 ERR_print_errors(bio_err);
1392 goto end;
1393 }
1394 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1395 BIO_free(stmp);
1396 if (!sess) {
1397 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1398 ERR_print_errors(bio_err);
1399 goto end;
1400 }
1401 SSL_set_session(con, sess);
1402 SSL_SESSION_free(sess);
1403 }
1404
1405 if (fallback_scsv)
1406 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1407
1408 #ifndef OPENSSL_NO_TLSEXT
1409 if (servername != NULL) {
1410 if (!SSL_set_tlsext_host_name(con, servername)) {
1411 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1412 ERR_print_errors(bio_err);
1413 goto end;
1414 }
1415 }
1416 #endif
1417 #ifndef OPENSSL_NO_KRB5
1418 if (con && (kctx = kssl_ctx_new()) != NULL) {
1419 SSL_set0_kssl_ctx(con, kctx);
1420 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1421 }
1422 #endif /* OPENSSL_NO_KRB5 */
1423 /* SSL_set_cipher_list(con,"RC4-MD5"); */
1424 #if 0
1425 # ifdef TLSEXT_TYPE_opaque_prf_input
1426 SSL_set_tlsext_opaque_prf_input(con, "Test client", 11);
1427 # endif
1428 #endif
1429
1430 re_start:
1431
1432 if (init_client(&s, host, port, socket_type) == 0) {
1433 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
1434 SHUTDOWN(s);
1435 goto end;
1436 }
1437 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
1438
1439 #ifdef FIONBIO
1440 if (c_nbio) {
1441 unsigned long l = 1;
1442 BIO_printf(bio_c_out, "turning on non blocking io\n");
1443 if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) {
1444 ERR_print_errors(bio_err);
1445 goto end;
1446 }
1447 }
1448 #endif
1449 if (c_Pause & 0x01)
1450 SSL_set_debug(con, 1);
1451
1452 if (socket_type == SOCK_DGRAM) {
1453
1454 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
1455 if (getsockname(s, &peer, (void *)&peerlen) < 0) {
1456 BIO_printf(bio_err, "getsockname:errno=%d\n",
1457 get_last_socket_error());
1458 SHUTDOWN(s);
1459 goto end;
1460 }
1461
1462 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1463
1464 if (enable_timeouts) {
1465 timeout.tv_sec = 0;
1466 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1467 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1468
1469 timeout.tv_sec = 0;
1470 timeout.tv_usec = DGRAM_SND_TIMEOUT;
1471 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1472 }
1473
1474 if (socket_mtu) {
1475 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
1476 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
1477 DTLS_get_link_min_mtu(con));
1478 BIO_free(sbio);
1479 goto shut;
1480 }
1481 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1482 if (!DTLS_set_link_mtu(con, socket_mtu)) {
1483 BIO_printf(bio_err, "Failed to set MTU\n");
1484 BIO_free(sbio);
1485 goto shut;
1486 }
1487 } else
1488 /* want to do MTU discovery */
1489 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1490 } else
1491 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1492
1493 if (nbio_test) {
1494 BIO *test;
1495
1496 test = BIO_new(BIO_f_nbio_test());
1497 sbio = BIO_push(test, sbio);
1498 }
1499
1500 if (c_debug) {
1501 SSL_set_debug(con, 1);
1502 BIO_set_callback(sbio, bio_dump_callback);
1503 BIO_set_callback_arg(sbio, (char *)bio_c_out);
1504 }
1505 if (c_msg) {
1506 #ifndef OPENSSL_NO_SSL_TRACE
1507 if (c_msg == 2)
1508 SSL_set_msg_callback(con, SSL_trace);
1509 else
1510 #endif
1511 SSL_set_msg_callback(con, msg_cb);
1512 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1513 }
1514 #ifndef OPENSSL_NO_TLSEXT
1515 if (c_tlsextdebug) {
1516 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1517 SSL_set_tlsext_debug_arg(con, bio_c_out);
1518 }
1519 if (c_status_req) {
1520 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1521 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1522 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1523 # if 0
1524 {
1525 STACK_OF(OCSP_RESPID) *ids = sk_OCSP_RESPID_new_null();
1526 OCSP_RESPID *id = OCSP_RESPID_new();
1527 id->value.byKey = ASN1_OCTET_STRING_new();
1528 id->type = V_OCSP_RESPID_KEY;
1529 ASN1_STRING_set(id->value.byKey, "Hello World", -1);
1530 sk_OCSP_RESPID_push(ids, id);
1531 SSL_set_tlsext_status_ids(con, ids);
1532 }
1533 # endif
1534 }
1535 #endif
1536 #ifndef OPENSSL_NO_JPAKE
1537 if (jpake_secret)
1538 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1539 #endif
1540
1541 SSL_set_bio(con, sbio, sbio);
1542 SSL_set_connect_state(con);
1543
1544 /* ok, lets connect */
1545 width = SSL_get_fd(con) + 1;
1546
1547 read_tty = 1;
1548 write_tty = 0;
1549 tty_on = 0;
1550 read_ssl = 1;
1551 write_ssl = 1;
1552
1553 cbuf_len = 0;
1554 cbuf_off = 0;
1555 sbuf_len = 0;
1556 sbuf_off = 0;
1557
1558 /* This is an ugly hack that does a lot of assumptions */
1559 /*
1560 * We do have to handle multi-line responses which may come in a single
1561 * packet or not. We therefore have to use BIO_gets() which does need a
1562 * buffering BIO. So during the initial chitchat we do push a buffering
1563 * BIO into the chain that is removed again later on to not disturb the
1564 * rest of the s_client operation.
1565 */
1566 if (starttls_proto == PROTO_SMTP) {
1567 int foundit = 0;
1568 BIO *fbio = BIO_new(BIO_f_buffer());
1569 BIO_push(fbio, sbio);
1570 /* wait for multi-line response to end from SMTP */
1571 do {
1572 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1573 }
1574 while (mbuf_len > 3 && mbuf[3] == '-');
1575 /* STARTTLS command requires EHLO... */
1576 BIO_printf(fbio, "EHLO openssl.client.net\r\n");
1577 (void)BIO_flush(fbio);
1578 /* wait for multi-line response to end EHLO SMTP response */
1579 do {
1580 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1581 if (strstr(mbuf, "STARTTLS"))
1582 foundit = 1;
1583 }
1584 while (mbuf_len > 3 && mbuf[3] == '-');
1585 (void)BIO_flush(fbio);
1586 BIO_pop(fbio);
1587 BIO_free(fbio);
1588 if (!foundit)
1589 BIO_printf(bio_err,
1590 "didn't found starttls in server response,"
1591 " try anyway...\n");
1592 BIO_printf(sbio, "STARTTLS\r\n");
1593 BIO_read(sbio, sbuf, BUFSIZZ);
1594 } else if (starttls_proto == PROTO_POP3) {
1595 BIO_read(sbio, mbuf, BUFSIZZ);
1596 BIO_printf(sbio, "STLS\r\n");
1597 BIO_read(sbio, sbuf, BUFSIZZ);
1598 } else if (starttls_proto == PROTO_IMAP) {
1599 int foundit = 0;
1600 BIO *fbio = BIO_new(BIO_f_buffer());
1601 BIO_push(fbio, sbio);
1602 BIO_gets(fbio, mbuf, BUFSIZZ);
1603 /* STARTTLS command requires CAPABILITY... */
1604 BIO_printf(fbio, ". CAPABILITY\r\n");
1605 (void)BIO_flush(fbio);
1606 /* wait for multi-line CAPABILITY response */
1607 do {
1608 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1609 if (strstr(mbuf, "STARTTLS"))
1610 foundit = 1;
1611 }
1612 while (mbuf_len > 3 && mbuf[0] != '.');
1613 (void)BIO_flush(fbio);
1614 BIO_pop(fbio);
1615 BIO_free(fbio);
1616 if (!foundit)
1617 BIO_printf(bio_err,
1618 "didn't found STARTTLS in server response,"
1619 " try anyway...\n");
1620 BIO_printf(sbio, ". STARTTLS\r\n");
1621 BIO_read(sbio, sbuf, BUFSIZZ);
1622 } else if (starttls_proto == PROTO_FTP) {
1623 BIO *fbio = BIO_new(BIO_f_buffer());
1624 BIO_push(fbio, sbio);
1625 /* wait for multi-line response to end from FTP */
1626 do {
1627 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1628 }
1629 while (mbuf_len > 3 && mbuf[3] == '-');
1630 (void)BIO_flush(fbio);
1631 BIO_pop(fbio);
1632 BIO_free(fbio);
1633 BIO_printf(sbio, "AUTH TLS\r\n");
1634 BIO_read(sbio, sbuf, BUFSIZZ);
1635 }
1636 if (starttls_proto == PROTO_XMPP) {
1637 int seen = 0;
1638 BIO_printf(sbio, "<stream:stream "
1639 "xmlns:stream='http://etherx.jabber.org/streams' "
1640 "xmlns='jabber:client' to='%s' version='1.0'>", host);
1641 seen = BIO_read(sbio, mbuf, BUFSIZZ);
1642 mbuf[seen] = 0;
1643 while (!strstr
1644 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")) {
1645 if (strstr(mbuf, "/stream:features>"))
1646 goto shut;
1647 seen = BIO_read(sbio, mbuf, BUFSIZZ);
1648 mbuf[seen] = 0;
1649 }
1650 BIO_printf(sbio,
1651 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1652 seen = BIO_read(sbio, sbuf, BUFSIZZ);
1653 sbuf[seen] = 0;
1654 if (!strstr(sbuf, "<proceed"))
1655 goto shut;
1656 mbuf[0] = 0;
1657 }
1658
1659 for (;;) {
1660 FD_ZERO(&readfds);
1661 FD_ZERO(&writefds);
1662
1663 if ((SSL_version(con) == DTLS1_VERSION) &&
1664 DTLSv1_get_timeout(con, &timeout))
1665 timeoutp = &timeout;
1666 else
1667 timeoutp = NULL;
1668
1669 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
1670 in_init = 1;
1671 tty_on = 0;
1672 } else {
1673 tty_on = 1;
1674 if (in_init) {
1675 in_init = 0;
1676 #if 0 /* This test doesn't really work as intended
1677 * (needs to be fixed) */
1678 # ifndef OPENSSL_NO_TLSEXT
1679 if (servername != NULL && !SSL_session_reused(con)) {
1680 BIO_printf(bio_c_out,
1681 "Server did %sacknowledge servername extension.\n",
1682 tlsextcbp.ack ? "" : "not ");
1683 }
1684 # endif
1685 #endif
1686 if (sess_out) {
1687 BIO *stmp = BIO_new_file(sess_out, "w");
1688 if (stmp) {
1689 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1690 BIO_free(stmp);
1691 } else
1692 BIO_printf(bio_err, "Error writing session file %s\n",
1693 sess_out);
1694 }
1695 if (c_brief) {
1696 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
1697 print_ssl_summary(bio_err, con);
1698 }
1699
1700 print_stuff(bio_c_out, con, full_log);
1701 if (full_log > 0)
1702 full_log--;
1703
1704 if (starttls_proto) {
1705 BIO_printf(bio_err, "%s", mbuf);
1706 /* We don't need to know any more */
1707 starttls_proto = PROTO_OFF;
1708 }
1709
1710 if (reconnect) {
1711 reconnect--;
1712 BIO_printf(bio_c_out,
1713 "drop connection and then reconnect\n");
1714 SSL_shutdown(con);
1715 SSL_set_connect_state(con);
1716 SHUTDOWN(SSL_get_fd(con));
1717 goto re_start;
1718 }
1719 }
1720 }
1721
1722 ssl_pending = read_ssl && SSL_pending(con);
1723
1724 if (!ssl_pending) {
1725 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined (OPENSSL_SYS_BEOS_R5)
1726 if (tty_on) {
1727 if (read_tty)
1728 openssl_fdset(fileno(stdin), &readfds);
1729 if (write_tty)
1730 openssl_fdset(fileno(stdout), &writefds);
1731 }
1732 if (read_ssl)
1733 openssl_fdset(SSL_get_fd(con), &readfds);
1734 if (write_ssl)
1735 openssl_fdset(SSL_get_fd(con), &writefds);
1736 #else
1737 if (!tty_on || !write_tty) {
1738 if (read_ssl)
1739 openssl_fdset(SSL_get_fd(con), &readfds);
1740 if (write_ssl)
1741 openssl_fdset(SSL_get_fd(con), &writefds);
1742 }
1743 #endif
1744 /*- printf("mode tty(%d %d%d) ssl(%d%d)\n",
1745 tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
1746
1747 /*
1748 * Note: under VMS with SOCKETSHR the second parameter is
1749 * currently of type (int *) whereas under other systems it is
1750 * (void *) if you don't have a cast it will choke the compiler:
1751 * if you do have a cast then you can either go for (int *) or
1752 * (void *).
1753 */
1754 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1755 /*
1756 * Under Windows/DOS we make the assumption that we can always
1757 * write to the tty: therefore if we need to write to the tty we
1758 * just fall through. Otherwise we timeout the select every
1759 * second and see if there are any keypresses. Note: this is a
1760 * hack, in a proper Windows application we wouldn't do this.
1761 */
1762 i = 0;
1763 if (!write_tty) {
1764 if (read_tty) {
1765 tv.tv_sec = 1;
1766 tv.tv_usec = 0;
1767 i = select(width, (void *)&readfds, (void *)&writefds,
1768 NULL, &tv);
1769 # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1770 if (!i && (!_kbhit() || !read_tty))
1771 continue;
1772 # else
1773 if (!i && (!((_kbhit())
1774 || (WAIT_OBJECT_0 ==
1775 WaitForSingleObject(GetStdHandle
1776 (STD_INPUT_HANDLE),
1777 0)))
1778 || !read_tty))
1779 continue;
1780 # endif
1781 } else
1782 i = select(width, (void *)&readfds, (void *)&writefds,
1783 NULL, timeoutp);
1784 }
1785 #elif defined(OPENSSL_SYS_NETWARE)
1786 if (!write_tty) {
1787 if (read_tty) {
1788 tv.tv_sec = 1;
1789 tv.tv_usec = 0;
1790 i = select(width, (void *)&readfds, (void *)&writefds,
1791 NULL, &tv);
1792 } else
1793 i = select(width, (void *)&readfds, (void *)&writefds,
1794 NULL, timeoutp);
1795 }
1796 #elif defined(OPENSSL_SYS_BEOS_R5)
1797 /* Under BeOS-R5 the situation is similar to DOS */
1798 i = 0;
1799 stdin_set = 0;
1800 (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
1801 if (!write_tty) {
1802 if (read_tty) {
1803 tv.tv_sec = 1;
1804 tv.tv_usec = 0;
1805 i = select(width, (void *)&readfds, (void *)&writefds,
1806 NULL, &tv);
1807 if (read(fileno(stdin), sbuf, 0) >= 0)
1808 stdin_set = 1;
1809 if (!i && (stdin_set != 1 || !read_tty))
1810 continue;
1811 } else
1812 i = select(width, (void *)&readfds, (void *)&writefds,
1813 NULL, timeoutp);
1814 }
1815 (void)fcntl(fileno(stdin), F_SETFL, 0);
1816 #else
1817 i = select(width, (void *)&readfds, (void *)&writefds,
1818 NULL, timeoutp);
1819 #endif
1820 if (i < 0) {
1821 BIO_printf(bio_err, "bad select %d\n",
1822 get_last_socket_error());
1823 goto shut;
1824 /* goto end; */
1825 }
1826 }
1827
1828 if ((SSL_version(con) == DTLS1_VERSION)
1829 && DTLSv1_handle_timeout(con) > 0) {
1830 BIO_printf(bio_err, "TIMEOUT occured\n");
1831 }
1832
1833 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
1834 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
1835 switch (SSL_get_error(con, k)) {
1836 case SSL_ERROR_NONE:
1837 cbuf_off += k;
1838 cbuf_len -= k;
1839 if (k <= 0)
1840 goto end;
1841 /* we have done a write(con,NULL,0); */
1842 if (cbuf_len <= 0) {
1843 read_tty = 1;
1844 write_ssl = 0;
1845 } else { /* if (cbuf_len > 0) */
1846
1847 read_tty = 0;
1848 write_ssl = 1;
1849 }
1850 break;
1851 case SSL_ERROR_WANT_WRITE:
1852 BIO_printf(bio_c_out, "write W BLOCK\n");
1853 write_ssl = 1;
1854 read_tty = 0;
1855 break;
1856 case SSL_ERROR_WANT_READ:
1857 BIO_printf(bio_c_out, "write R BLOCK\n");
1858 write_tty = 0;
1859 read_ssl = 1;
1860 write_ssl = 0;
1861 break;
1862 case SSL_ERROR_WANT_X509_LOOKUP:
1863 BIO_printf(bio_c_out, "write X BLOCK\n");
1864 break;
1865 case SSL_ERROR_ZERO_RETURN:
1866 if (cbuf_len != 0) {
1867 BIO_printf(bio_c_out, "shutdown\n");
1868 ret = 0;
1869 goto shut;
1870 } else {
1871 read_tty = 1;
1872 write_ssl = 0;
1873 break;
1874 }
1875
1876 case SSL_ERROR_SYSCALL:
1877 if ((k != 0) || (cbuf_len != 0)) {
1878 BIO_printf(bio_err, "write:errno=%d\n",
1879 get_last_socket_error());
1880 goto shut;
1881 } else {
1882 read_tty = 1;
1883 write_ssl = 0;
1884 }
1885 break;
1886 case SSL_ERROR_SSL:
1887 ERR_print_errors(bio_err);
1888 goto shut;
1889 }
1890 }
1891 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1892 /* Assume Windows/DOS/BeOS can always write */
1893 else if (!ssl_pending && write_tty)
1894 #else
1895 else if (!ssl_pending && FD_ISSET(fileno(stdout), &writefds))
1896 #endif
1897 {
1898 #ifdef CHARSET_EBCDIC
1899 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
1900 #endif
1901 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
1902
1903 if (i <= 0) {
1904 BIO_printf(bio_c_out, "DONE\n");
1905 ret = 0;
1906 goto shut;
1907 /* goto end; */
1908 }
1909
1910 sbuf_len -= i;;
1911 sbuf_off += i;
1912 if (sbuf_len <= 0) {
1913 read_ssl = 1;
1914 write_tty = 0;
1915 }
1916 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
1917 #ifdef RENEG
1918 {
1919 static int iiii;
1920 if (++iiii == 52) {
1921 SSL_renegotiate(con);
1922 iiii = 0;
1923 }
1924 }
1925 #endif
1926 #if 1
1927 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
1928 #else
1929 /* Demo for pending and peek :-) */
1930 k = SSL_read(con, sbuf, 16);
1931 {
1932 char zbuf[10240];
1933 printf("read=%d pending=%d peek=%d\n", k, SSL_pending(con),
1934 SSL_peek(con, zbuf, 10240));
1935 }
1936 #endif
1937
1938 switch (SSL_get_error(con, k)) {
1939 case SSL_ERROR_NONE:
1940 if (k <= 0)
1941 goto end;
1942 sbuf_off = 0;
1943 sbuf_len = k;
1944
1945 read_ssl = 0;
1946 write_tty = 1;
1947 break;
1948 case SSL_ERROR_WANT_WRITE:
1949 BIO_printf(bio_c_out, "read W BLOCK\n");
1950 write_ssl = 1;
1951 read_tty = 0;
1952 break;
1953 case SSL_ERROR_WANT_READ:
1954 BIO_printf(bio_c_out, "read R BLOCK\n");
1955 write_tty = 0;
1956 read_ssl = 1;
1957 if ((read_tty == 0) && (write_ssl == 0))
1958 write_ssl = 1;
1959 break;
1960 case SSL_ERROR_WANT_X509_LOOKUP:
1961 BIO_printf(bio_c_out, "read X BLOCK\n");
1962 break;
1963 case SSL_ERROR_SYSCALL:
1964 ret = get_last_socket_error();
1965 if (c_brief)
1966 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
1967 else
1968 BIO_printf(bio_err, "read:errno=%d\n", ret);
1969 goto shut;
1970 case SSL_ERROR_ZERO_RETURN:
1971 BIO_printf(bio_c_out, "closed\n");
1972 ret = 0;
1973 goto shut;
1974 case SSL_ERROR_SSL:
1975 ERR_print_errors(bio_err);
1976 goto shut;
1977 /* break; */
1978 }
1979 }
1980 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1981 # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1982 else if (_kbhit())
1983 # else
1984 else if ((_kbhit())
1985 || (WAIT_OBJECT_0 ==
1986 WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1987 # endif
1988 #elif defined (OPENSSL_SYS_NETWARE)
1989 else if (_kbhit())
1990 #elif defined(OPENSSL_SYS_BEOS_R5)
1991 else if (stdin_set)
1992 #else
1993 else if (FD_ISSET(fileno(stdin), &readfds))
1994 #endif
1995 {
1996 if (crlf) {
1997 int j, lf_num;
1998
1999 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
2000 lf_num = 0;
2001 /* both loops are skipped when i <= 0 */
2002 for (j = 0; j < i; j++)
2003 if (cbuf[j] == '\n')
2004 lf_num++;
2005 for (j = i - 1; j >= 0; j--) {
2006 cbuf[j + lf_num] = cbuf[j];
2007 if (cbuf[j] == '\n') {
2008 lf_num--;
2009 i++;
2010 cbuf[j + lf_num] = '\r';
2011 }
2012 }
2013 assert(lf_num == 0);
2014 } else
2015 i = raw_read_stdin(cbuf, BUFSIZZ);
2016
2017 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
2018 BIO_printf(bio_err, "DONE\n");
2019 ret = 0;
2020 goto shut;
2021 }
2022
2023 if ((!c_ign_eof) && (cbuf[0] == 'R')) {
2024 BIO_printf(bio_err, "RENEGOTIATING\n");
2025 SSL_renegotiate(con);
2026 cbuf_len = 0;
2027 }
2028 #ifndef OPENSSL_NO_HEARTBEATS
2029 else if ((!c_ign_eof) && (cbuf[0] == 'B')) {
2030 BIO_printf(bio_err, "HEARTBEATING\n");
2031 SSL_heartbeat(con);
2032 cbuf_len = 0;
2033 }
2034 #endif
2035 else {
2036 cbuf_len = i;
2037 cbuf_off = 0;
2038 #ifdef CHARSET_EBCDIC
2039 ebcdic2ascii(cbuf, cbuf, i);
2040 #endif
2041 }
2042
2043 write_ssl = 1;
2044 read_tty = 0;
2045 }
2046 }
2047
2048 ret = 0;
2049 shut:
2050 if (in_init)
2051 print_stuff(bio_c_out, con, full_log);
2052 SSL_shutdown(con);
2053 SHUTDOWN(SSL_get_fd(con));
2054 end:
2055 if (con != NULL) {
2056 if (prexit != 0)
2057 print_stuff(bio_c_out, con, 1);
2058 SSL_free(con);
2059 }
2060 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2061 if (next_proto.data)
2062 OPENSSL_free(next_proto.data);
2063 #endif
2064 if (ctx != NULL)
2065 SSL_CTX_free(ctx);
2066 if (cert)
2067 X509_free(cert);
2068 if (crls)
2069 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2070 if (key)
2071 EVP_PKEY_free(key);
2072 if (chain)
2073 sk_X509_pop_free(chain, X509_free);
2074 if (pass)
2075 OPENSSL_free(pass);
2076 #ifndef OPENSSL_NO_SRP
2077 OPENSSL_free(srp_arg.srppassin);
2078 #endif
2079 if (vpm)
2080 X509_VERIFY_PARAM_free(vpm);
2081 ssl_excert_free(exc);
2082 if (ssl_args)
2083 sk_OPENSSL_STRING_free(ssl_args);
2084 if (cctx)
2085 SSL_CONF_CTX_free(cctx);
2086 #ifndef OPENSSL_NO_JPAKE
2087 if (jpake_secret && psk_key)
2088 OPENSSL_free(psk_key);
2089 #endif
2090 if (cbuf != NULL) {
2091 OPENSSL_cleanse(cbuf, BUFSIZZ);
2092 OPENSSL_free(cbuf);
2093 }
2094 if (sbuf != NULL) {
2095 OPENSSL_cleanse(sbuf, BUFSIZZ);
2096 OPENSSL_free(sbuf);
2097 }
2098 if (mbuf != NULL) {
2099 OPENSSL_cleanse(mbuf, BUFSIZZ);
2100 OPENSSL_free(mbuf);
2101 }
2102 if (bio_c_out != NULL) {
2103 BIO_free(bio_c_out);
2104 bio_c_out = NULL;
2105 }
2106 if (bio_c_msg != NULL) {
2107 BIO_free(bio_c_msg);
2108 bio_c_msg = NULL;
2109 }
2110 apps_shutdown();
2111 OPENSSL_EXIT(ret);
2112 }
2113
print_stuff(BIO * bio,SSL * s,int full)2114 static void print_stuff(BIO *bio, SSL *s, int full)
2115 {
2116 X509 *peer = NULL;
2117 char *p;
2118 static const char *space = " ";
2119 char buf[BUFSIZ];
2120 STACK_OF(X509) *sk;
2121 STACK_OF(X509_NAME) *sk2;
2122 const SSL_CIPHER *c;
2123 X509_NAME *xn;
2124 int j, i;
2125 #ifndef OPENSSL_NO_COMP
2126 const COMP_METHOD *comp, *expansion;
2127 #endif
2128 unsigned char *exportedkeymat;
2129
2130 if (full) {
2131 int got_a_chain = 0;
2132
2133 sk = SSL_get_peer_cert_chain(s);
2134 if (sk != NULL) {
2135 got_a_chain = 1; /* we don't have it for SSL2 (yet) */
2136
2137 BIO_printf(bio, "---\nCertificate chain\n");
2138 for (i = 0; i < sk_X509_num(sk); i++) {
2139 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)),
2140 buf, sizeof buf);
2141 BIO_printf(bio, "%2d s:%s\n", i, buf);
2142 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)),
2143 buf, sizeof buf);
2144 BIO_printf(bio, " i:%s\n", buf);
2145 if (c_showcerts)
2146 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
2147 }
2148 }
2149
2150 BIO_printf(bio, "---\n");
2151 peer = SSL_get_peer_certificate(s);
2152 if (peer != NULL) {
2153 BIO_printf(bio, "Server certificate\n");
2154
2155 /* Redundant if we showed the whole chain */
2156 if (!(c_showcerts && got_a_chain))
2157 PEM_write_bio_X509(bio, peer);
2158 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
2159 BIO_printf(bio, "subject=%s\n", buf);
2160 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
2161 BIO_printf(bio, "issuer=%s\n", buf);
2162 } else
2163 BIO_printf(bio, "no peer certificate available\n");
2164
2165 sk2 = SSL_get_client_CA_list(s);
2166 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
2167 BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
2168 for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
2169 xn = sk_X509_NAME_value(sk2, i);
2170 X509_NAME_oneline(xn, buf, sizeof(buf));
2171 BIO_write(bio, buf, strlen(buf));
2172 BIO_write(bio, "\n", 1);
2173 }
2174 } else {
2175 BIO_printf(bio, "---\nNo client certificate CA names sent\n");
2176 }
2177 p = SSL_get_shared_ciphers(s, buf, sizeof buf);
2178 if (p != NULL) {
2179 /*
2180 * This works only for SSL 2. In later protocol versions, the
2181 * client does not know what other ciphers (in addition to the
2182 * one to be used in the current connection) the server supports.
2183 */
2184
2185 BIO_printf(bio,
2186 "---\nCiphers common between both SSL endpoints:\n");
2187 j = i = 0;
2188 while (*p) {
2189 if (*p == ':') {
2190 BIO_write(bio, space, 15 - j % 25);
2191 i++;
2192 j = 0;
2193 BIO_write(bio, ((i % 3) ? " " : "\n"), 1);
2194 } else {
2195 BIO_write(bio, p, 1);
2196 j++;
2197 }
2198 p++;
2199 }
2200 BIO_write(bio, "\n", 1);
2201 }
2202
2203 ssl_print_sigalgs(bio, s);
2204 ssl_print_tmp_key(bio, s);
2205
2206 BIO_printf(bio,
2207 "---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2208 BIO_number_read(SSL_get_rbio(s)),
2209 BIO_number_written(SSL_get_wbio(s)));
2210 }
2211 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, "));
2212 c = SSL_get_current_cipher(s);
2213 BIO_printf(bio, "%s, Cipher is %s\n",
2214 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2215 if (peer != NULL) {
2216 EVP_PKEY *pktmp;
2217 pktmp = X509_get_pubkey(peer);
2218 BIO_printf(bio, "Server public key is %d bit\n",
2219 EVP_PKEY_bits(pktmp));
2220 EVP_PKEY_free(pktmp);
2221 }
2222 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2223 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2224 #ifndef OPENSSL_NO_COMP
2225 comp = SSL_get_current_compression(s);
2226 expansion = SSL_get_current_expansion(s);
2227 BIO_printf(bio, "Compression: %s\n",
2228 comp ? SSL_COMP_get_name(comp) : "NONE");
2229 BIO_printf(bio, "Expansion: %s\n",
2230 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2231 #endif
2232
2233 #ifdef SSL_DEBUG
2234 {
2235 /* Print out local port of connection: useful for debugging */
2236 int sock;
2237 struct sockaddr_in ladd;
2238 socklen_t ladd_size = sizeof(ladd);
2239 sock = SSL_get_fd(s);
2240 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2241 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2242 }
2243 #endif
2244
2245 #if !defined(OPENSSL_NO_TLSEXT)
2246 # if !defined(OPENSSL_NO_NEXTPROTONEG)
2247 if (next_proto.status != -1) {
2248 const unsigned char *proto;
2249 unsigned int proto_len;
2250 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2251 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2252 BIO_write(bio, proto, proto_len);
2253 BIO_write(bio, "\n", 1);
2254 }
2255 # endif
2256 {
2257 const unsigned char *proto;
2258 unsigned int proto_len;
2259 SSL_get0_alpn_selected(s, &proto, &proto_len);
2260 if (proto_len > 0) {
2261 BIO_printf(bio, "ALPN protocol: ");
2262 BIO_write(bio, proto, proto_len);
2263 BIO_write(bio, "\n", 1);
2264 } else
2265 BIO_printf(bio, "No ALPN negotiated\n");
2266 }
2267 #endif
2268
2269 #ifndef OPENSSL_NO_SRTP
2270 {
2271 SRTP_PROTECTION_PROFILE *srtp_profile =
2272 SSL_get_selected_srtp_profile(s);
2273
2274 if (srtp_profile)
2275 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
2276 srtp_profile->name);
2277 }
2278 #endif
2279
2280 SSL_SESSION_print(bio, SSL_get_session(s));
2281 if (keymatexportlabel != NULL) {
2282 BIO_printf(bio, "Keying material exporter:\n");
2283 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
2284 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
2285 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2286 if (exportedkeymat != NULL) {
2287 if (!SSL_export_keying_material(s, exportedkeymat,
2288 keymatexportlen,
2289 keymatexportlabel,
2290 strlen(keymatexportlabel),
2291 NULL, 0, 0)) {
2292 BIO_printf(bio, " Error\n");
2293 } else {
2294 BIO_printf(bio, " Keying material: ");
2295 for (i = 0; i < keymatexportlen; i++)
2296 BIO_printf(bio, "%02X", exportedkeymat[i]);
2297 BIO_printf(bio, "\n");
2298 }
2299 OPENSSL_free(exportedkeymat);
2300 }
2301 }
2302 BIO_printf(bio, "---\n");
2303 if (peer != NULL)
2304 X509_free(peer);
2305 /* flush, or debugging output gets mixed with http response */
2306 (void)BIO_flush(bio);
2307 }
2308
2309 #ifndef OPENSSL_NO_TLSEXT
2310
ocsp_resp_cb(SSL * s,void * arg)2311 static int ocsp_resp_cb(SSL *s, void *arg)
2312 {
2313 const unsigned char *p;
2314 int len;
2315 OCSP_RESPONSE *rsp;
2316 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2317 BIO_puts(arg, "OCSP response: ");
2318 if (!p) {
2319 BIO_puts(arg, "no response sent\n");
2320 return 1;
2321 }
2322 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2323 if (!rsp) {
2324 BIO_puts(arg, "response parse error\n");
2325 BIO_dump_indent(arg, (char *)p, len, 4);
2326 return 0;
2327 }
2328 BIO_puts(arg, "\n======================================\n");
2329 OCSP_RESPONSE_print(arg, rsp, 0);
2330 BIO_puts(arg, "======================================\n");
2331 OCSP_RESPONSE_free(rsp);
2332 return 1;
2333 }
2334
2335 #endif
2336