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1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
56 */
57 /* ====================================================================
58 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
59 *
60 * Redistribution and use in source and binary forms, with or without
61 * modification, are permitted provided that the following conditions
62 * are met:
63 *
64 * 1. Redistributions of source code must retain the above copyright
65 * notice, this list of conditions and the following disclaimer.
66 *
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in
69 * the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3. All advertising materials mentioning features or use of this
73 * software must display the following acknowledgment:
74 * "This product includes software developed by the OpenSSL Project
75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
76 *
77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78 * endorse or promote products derived from this software without
79 * prior written permission. For written permission, please contact
80 * openssl-core@openssl.org.
81 *
82 * 5. Products derived from this software may not be called "OpenSSL"
83 * nor may "OpenSSL" appear in their names without prior written
84 * permission of the OpenSSL Project.
85 *
86 * 6. Redistributions of any form whatsoever must retain the following
87 * acknowledgment:
88 * "This product includes software developed by the OpenSSL Project
89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
90 *
91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102 * OF THE POSSIBILITY OF SUCH DAMAGE.
103 * ====================================================================
104 *
105 * This product includes cryptographic software written by Eric Young
106 * (eay@cryptsoft.com). This product includes software written by Tim
107 * Hudson (tjh@cryptsoft.com).
108 *
109 */
110 /* ====================================================================
111 * Copyright 2005 Nokia. All rights reserved.
112 *
113 * The portions of the attached software ("Contribution") is developed by
114 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
115 * license.
116 *
117 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
118 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
119 * support (see RFC 4279) to OpenSSL.
120 *
121 * No patent licenses or other rights except those expressly stated in
122 * the OpenSSL open source license shall be deemed granted or received
123 * expressly, by implication, estoppel, or otherwise.
124 *
125 * No assurances are provided by Nokia that the Contribution does not
126 * infringe the patent or other intellectual property rights of any third
127 * party or that the license provides you with all the necessary rights
128 * to make use of the Contribution.
129 *
130 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
131 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
132 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
133 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
134 * OTHERWISE.
135 */
136
137 #include <assert.h>
138 #include <ctype.h>
139 #include <stdio.h>
140 #include <stdlib.h>
141 #include <string.h>
142 #include <openssl/e_os2.h>
143
144 /*
145 * With IPv6, it looks like Digital has mixed up the proper order of
146 * recursive header file inclusion, resulting in the compiler complaining
147 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
148 * needed to have fileno() declared correctly... So let's define u_int
149 */
150 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
151 # define __U_INT
152 typedef unsigned int u_int;
153 #endif
154
155 #define USE_SOCKETS
156 #include "apps.h"
157 #include <openssl/x509.h>
158 #include <openssl/ssl.h>
159 #include <openssl/err.h>
160 #include <openssl/pem.h>
161 #include <openssl/rand.h>
162 #include <openssl/ocsp.h>
163 #include <openssl/bn.h>
164 #ifndef OPENSSL_NO_SRP
165 # include <openssl/srp.h>
166 #endif
167 #include "s_apps.h"
168 #include "timeouts.h"
169
170 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
171 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
172 # undef FIONBIO
173 #endif
174
175 #define SSL_HOST_NAME "localhost"
176
177 #undef BUFSIZZ
178 #define BUFSIZZ 1024*8
179
180 extern int verify_depth;
181 extern int verify_error;
182 extern int verify_return_error;
183 extern int verify_quiet;
184
185 static int c_nbio = 0;
186 static int c_tlsextdebug = 0;
187 static int c_status_req = 0;
188 static int c_Pause = 0;
189 static int c_debug = 0;
190 static int c_msg = 0;
191 static int c_showcerts = 0;
192 static char *keymatexportlabel = NULL;
193 static int keymatexportlen = 20;
194 static BIO *bio_c_out = NULL;
195 static BIO *bio_c_msg = NULL;
196 static int c_quiet = 0;
197 static int c_ign_eof = 0;
198 static int c_brief = 0;
199
200 static void print_stuff(BIO *berr, SSL *con, int full);
201 #ifndef OPENSSL_NO_TLSEXT
202 static int ocsp_resp_cb(SSL *s, void *arg);
203 #endif
204
205 #ifndef OPENSSL_NO_PSK
206 /* Default PSK identity and key */
207 static char *psk_identity = "Client_identity";
208 /*
209 * char *psk_key=NULL; by default PSK is not used
210 */
211
212 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
213 unsigned int max_identity_len,
214 unsigned char *psk,
215 unsigned int max_psk_len)
216 {
217 unsigned int psk_len = 0;
218 int ret;
219 BIGNUM *bn = NULL;
220
221 if (c_debug)
222 BIO_printf(bio_c_out, "psk_client_cb\n");
223 if (!hint) {
224 /* no ServerKeyExchange message */
225 if (c_debug)
226 BIO_printf(bio_c_out,
227 "NULL received PSK identity hint, continuing anyway\n");
228 } else if (c_debug)
229 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
230
231 /*
232 * lookup PSK identity and PSK key based on the given identity hint here
233 */
234 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
235 if (ret < 0 || (unsigned int)ret > max_identity_len)
236 goto out_err;
237 if (c_debug)
238 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
239 ret);
240 ret = BN_hex2bn(&bn, psk_key);
241 if (!ret) {
242 BIO_printf(bio_err, "Could not convert PSK key '%s' to BIGNUM\n",
243 psk_key);
244 BN_free(bn);
245 return 0;
246 }
247
248 if ((unsigned int)BN_num_bytes(bn) > max_psk_len) {
249 BIO_printf(bio_err,
250 "psk buffer of callback is too small (%d) for key (%d)\n",
251 max_psk_len, BN_num_bytes(bn));
252 BN_free(bn);
253 return 0;
254 }
255
256 psk_len = BN_bn2bin(bn, psk);
257 BN_free(bn);
258 if (psk_len == 0)
259 goto out_err;
260
261 if (c_debug)
262 BIO_printf(bio_c_out, "created PSK len=%d\n", psk_len);
263
264 return psk_len;
265 out_err:
266 if (c_debug)
267 BIO_printf(bio_err, "Error in PSK client callback\n");
268 return 0;
269 }
270 #endif
271
272 #ifndef OPENSSL_NO_TLSEXT
273
274 /* This is a context that we pass to callbacks */
275 typedef struct tlsextctx_st {
276 BIO *biodebug;
277 int ack;
278 } tlsextctx;
279
280 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
281 {
282 tlsextctx *p = (tlsextctx *) arg;
283 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
284 if (SSL_get_servername_type(s) != -1)
285 p->ack = !SSL_session_reused(s) && hn != NULL;
286 else
287 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
288
289 return SSL_TLSEXT_ERR_OK;
290 }
291
292 # ifndef OPENSSL_NO_SRP
293
294 /* This is a context that we pass to all callbacks */
295 typedef struct srp_arg_st {
296 char *srppassin;
297 char *srplogin;
298 int msg; /* copy from c_msg */
299 int debug; /* copy from c_debug */
300 int amp; /* allow more groups */
301 int strength /* minimal size for N */ ;
302 } SRP_ARG;
303
304 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
305
306 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
307 {
308 BN_CTX *bn_ctx = BN_CTX_new();
309 BIGNUM *p = BN_new();
310 BIGNUM *r = BN_new();
311 int ret =
312 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
313 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
314 p != NULL && BN_rshift1(p, N) &&
315 /* p = (N-1)/2 */
316 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) &&
317 r != NULL &&
318 /* verify g^((N-1)/2) == -1 (mod N) */
319 BN_mod_exp(r, g, p, N, bn_ctx) &&
320 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
321
322 BN_free(r);
323 BN_free(p);
324 BN_CTX_free(bn_ctx);
325 return ret;
326 }
327
328 /*-
329 * This callback is used here for two purposes:
330 * - extended debugging
331 * - making some primality tests for unknown groups
332 * The callback is only called for a non default group.
333 *
334 * An application does not need the call back at all if
335 * only the stanard groups are used. In real life situations,
336 * client and server already share well known groups,
337 * thus there is no need to verify them.
338 * Furthermore, in case that a server actually proposes a group that
339 * is not one of those defined in RFC 5054, it is more appropriate
340 * to add the group to a static list and then compare since
341 * primality tests are rather cpu consuming.
342 */
343
344 static int ssl_srp_verify_param_cb(SSL *s, void *arg)
345 {
346 SRP_ARG *srp_arg = (SRP_ARG *)arg;
347 BIGNUM *N = NULL, *g = NULL;
348 if (!(N = SSL_get_srp_N(s)) || !(g = SSL_get_srp_g(s)))
349 return 0;
350 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
351 BIO_printf(bio_err, "SRP parameters:\n");
352 BIO_printf(bio_err, "\tN=");
353 BN_print(bio_err, N);
354 BIO_printf(bio_err, "\n\tg=");
355 BN_print(bio_err, g);
356 BIO_printf(bio_err, "\n");
357 }
358
359 if (SRP_check_known_gN_param(g, N))
360 return 1;
361
362 if (srp_arg->amp == 1) {
363 if (srp_arg->debug)
364 BIO_printf(bio_err,
365 "SRP param N and g are not known params, going to check deeper.\n");
366
367 /*
368 * The srp_moregroups is a real debugging feature. Implementors
369 * should rather add the value to the known ones. The minimal size
370 * has already been tested.
371 */
372 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
373 return 1;
374 }
375 BIO_printf(bio_err, "SRP param N and g rejected.\n");
376 return 0;
377 }
378
379 # define PWD_STRLEN 1024
380
381 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
382 {
383 SRP_ARG *srp_arg = (SRP_ARG *)arg;
384 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
385 PW_CB_DATA cb_tmp;
386 int l;
387
388 cb_tmp.password = (char *)srp_arg->srppassin;
389 cb_tmp.prompt_info = "SRP user";
390 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
391 BIO_printf(bio_err, "Can't read Password\n");
392 OPENSSL_free(pass);
393 return NULL;
394 }
395 *(pass + l) = '\0';
396
397 return pass;
398 }
399
400 # endif
401
402 char *srtp_profiles = NULL;
403
404 # ifndef OPENSSL_NO_NEXTPROTONEG
405 /* This the context that we pass to next_proto_cb */
406 typedef struct tlsextnextprotoctx_st {
407 unsigned char *data;
408 unsigned short len;
409 int status;
410 } tlsextnextprotoctx;
411
412 static tlsextnextprotoctx next_proto;
413
414 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
415 const unsigned char *in, unsigned int inlen,
416 void *arg)
417 {
418 tlsextnextprotoctx *ctx = arg;
419
420 if (!c_quiet) {
421 /* We can assume that |in| is syntactically valid. */
422 unsigned i;
423 BIO_printf(bio_c_out, "Protocols advertised by server: ");
424 for (i = 0; i < inlen;) {
425 if (i)
426 BIO_write(bio_c_out, ", ", 2);
427 BIO_write(bio_c_out, &in[i + 1], in[i]);
428 i += in[i] + 1;
429 }
430 BIO_write(bio_c_out, "\n", 1);
431 }
432
433 ctx->status =
434 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
435 return SSL_TLSEXT_ERR_OK;
436 }
437 # endif /* ndef OPENSSL_NO_NEXTPROTONEG */
438
439 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
440 const unsigned char *in, size_t inlen,
441 int *al, void *arg)
442 {
443 char pem_name[100];
444 unsigned char ext_buf[4 + 65536];
445
446 /* Reconstruct the type/len fields prior to extension data */
447 ext_buf[0] = ext_type >> 8;
448 ext_buf[1] = ext_type & 0xFF;
449 ext_buf[2] = inlen >> 8;
450 ext_buf[3] = inlen & 0xFF;
451 memcpy(ext_buf + 4, in, inlen);
452
453 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
454 ext_type);
455 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
456 return 1;
457 }
458
459 #endif
460
461 typedef enum OPTION_choice {
462 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
463 OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_UNIX, OPT_XMPPHOST, OPT_VERIFY,
464 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
465 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
466 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
467 OPT_SSL_CLIENT_ENGINE, OPT_RAND, OPT_IGN_EOF, OPT_NO_IGN_EOF,
468 OPT_PAUSE, OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
469 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
470 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
471 OPT_PSK_IDENTITY, OPT_PSK, OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH,
472 OPT_SRP_LATEUSER, OPT_SRP_MOREGROUPS, OPT_SSL3,
473 OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
474 OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
475 OPT_CERT_CHAIN, OPT_CAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
476 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_KRB5SVC,
477 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
478 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_JPAKE,
479 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_SMTPHOST,
480 OPT_V_ENUM,
481 OPT_X_ENUM,
482 OPT_S_ENUM,
483 OPT_FALLBACKSCSV, OPT_NOCMDS
484 } OPTION_CHOICE;
485
486 OPTIONS s_client_options[] = {
487 {"help", OPT_HELP, '-', "Display this summary"},
488 {"host", OPT_HOST, 's', "Use -connect instead"},
489 {"port", OPT_PORT, 'p', "Use -connect instead"},
490 {"connect", OPT_CONNECT, 's',
491 "TCP/IP where to connect (default is " SSL_HOST_NAME ":" PORT_STR ")"},
492 {"unix", OPT_UNIX, 's', "Connect over unix domain sockets"},
493 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
494 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
495 {"certform", OPT_CERTFORM, 'F',
496 "Certificate format (PEM or DER) PEM default"},
497 {"key", OPT_KEY, '<', "Private key file to use, if not in -cert file"},
498 {"keyform", OPT_KEYFORM, 'F', "Key format (PEM or DER) PEM default"},
499 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
500 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
501 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
502 {"reconnect", OPT_RECONNECT, '-',
503 "Drop and re-make the connection with the same Session-ID"},
504 {"pause", OPT_PAUSE, '-', "Sleep after each read and write system call"},
505 {"showcerts", OPT_SHOWCERTS, '-', "Show all certificates in the chain"},
506 {"debug", OPT_DEBUG, '-', "Extra output"},
507 {"msg", OPT_MSG, '-', "Show protocol messages"},
508 {"msgfile", OPT_MSGFILE, '>'},
509 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
510 {"state", OPT_STATE, '-', "Print the ssl states"},
511 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
512 {"quiet", OPT_QUIET, '-', "No s_client output"},
513 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
514 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
515 #ifndef OPENSSL_NO_SSL3
516 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
517 #endif
518 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
519 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
520 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
521 {"dtls", OPT_DTLS, '-'},
522 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
523 {"dtls1_2", OPT_DTLS1_2, '-'},
524 {"timeout", OPT_TIMEOUT, '-'},
525 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
526 {"starttls", OPT_STARTTLS, 's',
527 "Use the STARTTLS command before starting TLS"},
528 {"xmpphost", OPT_XMPPHOST, 's', "Host to use with \"-starttls xmpp\""},
529 {"rand", OPT_RAND, 's',
530 "Load the file(s) into the random number generator"},
531 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
532 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
533 {"use_srtp", OPT_USE_SRTP, '<',
534 "Offer SRTP key management with a colon-separated profile list"},
535 {"keymatexport", OPT_KEYMATEXPORT, 's',
536 "Export keying material using label"},
537 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
538 "Export len bytes of keying material (default 20)"},
539 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
540 #ifdef WATT32
541 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
542 #endif
543 #ifdef FIONBIO
544 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
545 #endif
546 #ifndef OPENSSL_NO_PSK
547 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
548 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
549 # ifndef OPENSSL_NO_JPAKE
550 {"jpake", OPT_JPAKE, 's', "JPAKE secret to use"},
551 # endif
552 #endif
553 #ifndef OPENSSL_NO_KRB5
554 {"krb5svc", OPT_KRB5SVC, 's', "Kerberos service name"},
555 #endif
556 #ifndef OPENSSL_NO_SRP
557 {"srpuser", OPT_SRPUSER, 's', "SRP authentification for 'user'"},
558 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
559 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
560 "SRP username into second ClientHello message"},
561 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
562 "Tolerate other than the known g N values."},
563 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal mength in bits for N"},
564 #endif
565 {"name", OPT_SMTPHOST, 's', "Hostname to use for \"-starttls smtp\""},
566 #ifndef OPENSSL_NO_TLSEXT
567 {"servername", OPT_SERVERNAME, 's',
568 "Set TLS extension servername in ClientHello"},
569 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
570 "Hex dump of all TLS extensions received"},
571 {"status", OPT_STATUS, '-', "Request certificate status from server"},
572 {"serverinfo", OPT_SERVERINFO, 's',
573 "types Send empty ClientHello extensions (comma-separated numbers)"},
574 {"alpn", OPT_ALPN, 's',
575 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
576 # ifndef OPENSSL_NO_NEXTPROTONEG
577 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
578 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
579 # endif
580 #endif
581 {"CRL", OPT_CRL, '<'},
582 {"crl_download", OPT_CRL_DOWNLOAD, '-'},
583 {"CRLform", OPT_CRLFORM, 'F'},
584 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-'},
585 {"verify_quiet", OPT_VERIFY_QUIET, '-'},
586 {"brief", OPT_BRIEF, '-'},
587 {"prexit", OPT_PREXIT, '-'},
588 {"trace", OPT_TRACE, '-'},
589 {"security_debug", OPT_SECURITY_DEBUG, '-'},
590 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-'},
591 {"cert_chain", OPT_CERT_CHAIN, '<'},
592 {"chainCApath", OPT_CHAINCAPATH, '/'},
593 {"verifyCApath", OPT_VERIFYCAPATH, '/'},
594 {"build_chain", OPT_BUILD_CHAIN, '-'},
595 {"chainCAfile", OPT_CHAINCAFILE, '<'},
596 {"verifyCAfile", OPT_VERIFYCAFILE, '<'},
597 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
598 #ifndef OPENSSL_NO_ENGINE
599 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
600 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's'},
601 #endif
602 OPT_S_OPTIONS,
603 OPT_V_OPTIONS,
604 OPT_X_OPTIONS,
605 {NULL}
606 };
607
608 typedef enum PROTOCOL_choice {
609 PROTO_OFF,
610 PROTO_SMTP,
611 PROTO_POP3,
612 PROTO_IMAP,
613 PROTO_FTP,
614 PROTO_TELNET,
615 PROTO_XMPP
616 } PROTOCOL_CHOICE;
617
618 static OPT_PAIR services[] = {
619 {"smtp", PROTO_SMTP},
620 {"pop3", PROTO_POP3},
621 {"imap", PROTO_IMAP},
622 {"ftp", PROTO_FTP},
623 {"xmpp", PROTO_XMPP},
624 {"telnet", PROTO_TELNET},
625 {NULL}
626 };
627
628 int s_client_main(int argc, char **argv)
629 {
630 BIO *sbio;
631 EVP_PKEY *key = NULL;
632 SSL *con = NULL;
633 SSL_CTX *ctx = NULL;
634 STACK_OF(X509) *chain = NULL;
635 X509 *cert = NULL;
636 X509_VERIFY_PARAM *vpm = NULL;
637 SSL_EXCERT *exc = NULL;
638 SSL_CONF_CTX *cctx = NULL;
639 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
640 STACK_OF(X509_CRL) *crls = NULL;
641 const SSL_METHOD *meth = SSLv23_client_method();
642 char *CApath = NULL, *CAfile = NULL, *cbuf = NULL, *sbuf = NULL, *mbuf =
643 NULL;
644 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL, *prog;
645 char *chCApath = NULL, *chCAfile = NULL, *host = SSL_HOST_NAME, *inrand =
646 NULL;
647 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
648 char *sess_in = NULL, *sess_out = NULL, *crl_file = NULL, *p;
649 char *jpake_secret = NULL, *xmpphost = NULL;
650 const char *unix_path = NULL;
651 const char *ehlo = "mail.example.com";
652 struct sockaddr peer;
653 struct timeval timeout, *timeoutp;
654 fd_set readfds, writefds;
655 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
656 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
657 int prexit = 0;
658 int enable_timeouts = 0, sdebug = 0, peerlen = sizeof peer;
659 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
660 int ret = 1, in_init = 1, i, nbio_test = 0, s, k, width, state = 0;
661 int sbuf_len, sbuf_off, socket_type = SOCK_STREAM, cmdletters = 1;
662 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
663 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
664 int fallback_scsv = 0;
665 long socket_mtu = 0, randamt = 0;
666 unsigned short port = PORT;
667 OPTION_CHOICE o;
668 #ifndef OPENSSL_NO_KRB5
669 KSSL_CTX *kctx;
670 const char *krb5svc = NULL;
671 #endif
672 #ifndef OPENSSL_NO_ENGINE
673 ENGINE *ssl_client_engine = NULL;
674 #endif
675 ENGINE *e = NULL;
676 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
677 struct timeval tv;
678 #endif
679 #ifndef OPENSSL_NO_TLSEXT
680 char *servername = NULL;
681 const char *alpn_in = NULL;
682 tlsextctx tlsextcbp = { NULL, 0 };
683 # define MAX_SI_TYPES 100
684 unsigned short serverinfo_types[MAX_SI_TYPES];
685 int serverinfo_count = 0, start = 0, len;
686 # ifndef OPENSSL_NO_NEXTPROTONEG
687 const char *next_proto_neg_in = NULL;
688 # endif
689 #endif
690 #ifndef OPENSSL_NO_SRP
691 char *srppass = NULL;
692 int srp_lateuser = 0;
693 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
694 #endif
695
696 prog = opt_progname(argv[0]);
697 c_Pause = 0;
698 c_quiet = 0;
699 c_ign_eof = 0;
700 c_debug = 0;
701 c_msg = 0;
702 c_showcerts = 0;
703 c_nbio = 0;
704 verify_depth = 0;
705 verify_error = X509_V_OK;
706 vpm = X509_VERIFY_PARAM_new();
707 cbuf = app_malloc(BUFSIZZ, "cbuf");
708 sbuf = app_malloc(BUFSIZZ, "sbuf");
709 mbuf = app_malloc(BUFSIZZ, "mbuf");
710 cctx = SSL_CONF_CTX_new();
711
712 if (vpm == NULL || cctx == NULL) {
713 BIO_printf(bio_err, "%s: out of memory\n", prog);
714 goto end;
715 }
716
717 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
718
719 prog = opt_init(argc, argv, s_client_options);
720 while ((o = opt_next()) != OPT_EOF) {
721 switch (o) {
722 #ifndef WATT32
723 case OPT_WDEBUG:
724 #endif
725 #ifdef OPENSSL_NO_JPAKE
726 case OPT_JPAKE:
727 #endif
728 #ifdef OPENSSL_NO_SSL_TRACE
729 case OPT_TRACE:
730 #endif
731 case OPT_EOF:
732 case OPT_ERR:
733 opthelp:
734 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
735 goto end;
736 case OPT_HELP:
737 opt_help(s_client_options);
738 ret = 0;
739 goto end;
740 case OPT_HOST:
741 host = opt_arg();
742 break;
743 case OPT_PORT:
744 port = atoi(opt_arg());
745 break;
746 case OPT_CONNECT:
747 if (!extract_host_port(opt_arg(), &host, NULL, &port))
748 goto end;
749 break;
750 case OPT_UNIX:
751 unix_path = opt_arg();
752 break;
753 case OPT_XMPPHOST:
754 xmpphost = opt_arg();
755 break;
756 case OPT_SMTPHOST:
757 ehlo = opt_arg();
758 break;
759 case OPT_VERIFY:
760 verify = SSL_VERIFY_PEER;
761 verify_depth = atoi(opt_arg());
762 if (!c_quiet)
763 BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
764 break;
765 case OPT_CERT:
766 cert_file = opt_arg();
767 break;
768 case OPT_CRL:
769 crl_file = opt_arg();
770 break;
771 case OPT_CRL_DOWNLOAD:
772 crl_download = 1;
773 break;
774 case OPT_SESS_OUT:
775 sess_out = opt_arg();
776 break;
777 case OPT_SESS_IN:
778 sess_in = opt_arg();
779 break;
780 case OPT_CERTFORM:
781 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
782 goto opthelp;
783 break;
784 case OPT_CRLFORM:
785 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
786 goto opthelp;
787 break;
788 case OPT_VERIFY_RET_ERROR:
789 verify_return_error = 1;
790 break;
791 case OPT_VERIFY_QUIET:
792 verify_quiet = 1;
793 break;
794 case OPT_BRIEF:
795 c_brief = verify_quiet = c_quiet = 1;
796 break;
797 case OPT_S_CASES:
798 if (ssl_args == NULL)
799 ssl_args = sk_OPENSSL_STRING_new_null();
800 if (ssl_args == NULL
801 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
802 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
803 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
804 goto end;
805 }
806 break;
807 case OPT_V_CASES:
808 if (!opt_verify(o, vpm))
809 goto end;
810 vpmtouched++;
811 break;
812 case OPT_X_CASES:
813 if (!args_excert(o, &exc))
814 goto end;
815 break;
816 case OPT_PREXIT:
817 prexit = 1;
818 break;
819 case OPT_CRLF:
820 crlf = 1;
821 break;
822 case OPT_QUIET:
823 c_quiet = c_ign_eof = 1;
824 break;
825 case OPT_NBIO:
826 c_nbio = 1;
827 break;
828 case OPT_NOCMDS:
829 cmdletters = 0;
830 break;
831 case OPT_KRB5SVC:
832 #ifndef OPENSSL_NO_KRB5
833 krb5svc = opt_arg();
834 #endif
835 break;
836 case OPT_ENGINE:
837 e = setup_engine(opt_arg(), 1);
838 break;
839 case OPT_SSL_CLIENT_ENGINE:
840 #ifndef OPENSSL_NO_ENGINE
841 ssl_client_engine = ENGINE_by_id(opt_arg());
842 if (ssl_client_engine == NULL) {
843 BIO_printf(bio_err, "Error getting client auth engine\n");
844 goto opthelp;
845 }
846 break;
847 #endif
848 break;
849 case OPT_RAND:
850 inrand = opt_arg();
851 break;
852 case OPT_IGN_EOF:
853 c_ign_eof = 1;
854 break;
855 case OPT_NO_IGN_EOF:
856 c_ign_eof = 0;
857 break;
858 case OPT_PAUSE:
859 c_Pause = 1;
860 break;
861 case OPT_DEBUG:
862 c_debug = 1;
863 break;
864 #ifndef OPENSSL_NO_TLSEXT
865 case OPT_TLSEXTDEBUG:
866 c_tlsextdebug = 1;
867 break;
868 case OPT_STATUS:
869 c_status_req = 1;
870 break;
871 #endif
872 #ifdef WATT32
873 case OPT_WDEBUG:
874 dbug_init();
875 break;
876 #endif
877 case OPT_MSG:
878 c_msg = 1;
879 break;
880 case OPT_MSGFILE:
881 bio_c_msg = BIO_new_file(opt_arg(), "w");
882 break;
883 #ifndef OPENSSL_NO_SSL_TRACE
884 case OPT_TRACE:
885 c_msg = 2;
886 break;
887 #endif
888 case OPT_SECURITY_DEBUG:
889 sdebug = 1;
890 break;
891 case OPT_SECURITY_DEBUG_VERBOSE:
892 sdebug = 2;
893 break;
894 case OPT_SHOWCERTS:
895 c_showcerts = 1;
896 break;
897 case OPT_NBIO_TEST:
898 nbio_test = 1;
899 break;
900 case OPT_STATE:
901 state = 1;
902 break;
903 #ifndef OPENSSL_NO_PSK
904 case OPT_PSK_IDENTITY:
905 psk_identity = opt_arg();
906 break;
907 case OPT_PSK:
908 for (p = psk_key = opt_arg(); *p; p++) {
909 if (isxdigit(*p))
910 continue;
911 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
912 goto end;
913 }
914 break;
915 #endif
916 #ifndef OPENSSL_NO_SRP
917 case OPT_SRPUSER:
918 srp_arg.srplogin = opt_arg();
919 meth = TLSv1_client_method();
920 break;
921 case OPT_SRPPASS:
922 srppass = opt_arg();
923 meth = TLSv1_client_method();
924 break;
925 case OPT_SRP_STRENGTH:
926 srp_arg.strength = atoi(opt_arg());
927 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
928 srp_arg.strength);
929 meth = TLSv1_client_method();
930 break;
931 case OPT_SRP_LATEUSER:
932 srp_lateuser = 1;
933 meth = TLSv1_client_method();
934 break;
935 case OPT_SRP_MOREGROUPS:
936 srp_arg.amp = 1;
937 meth = TLSv1_client_method();
938 break;
939 #endif
940 #ifndef OPENSSL_NO_SSL3
941 case OPT_SSL3:
942 meth = SSLv3_client_method();
943 break;
944 #endif
945 case OPT_TLS1_2:
946 meth = TLSv1_2_client_method();
947 break;
948 case OPT_TLS1_1:
949 meth = TLSv1_1_client_method();
950 break;
951 case OPT_TLS1:
952 meth = TLSv1_client_method();
953 break;
954 #ifndef OPENSSL_NO_DTLS1
955 case OPT_DTLS:
956 meth = DTLS_client_method();
957 socket_type = SOCK_DGRAM;
958 break;
959 case OPT_DTLS1:
960 meth = DTLSv1_client_method();
961 socket_type = SOCK_DGRAM;
962 break;
963 case OPT_DTLS1_2:
964 meth = DTLSv1_2_client_method();
965 socket_type = SOCK_DGRAM;
966 break;
967 case OPT_TIMEOUT:
968 enable_timeouts = 1;
969 break;
970 case OPT_MTU:
971 socket_mtu = atol(opt_arg());
972 break;
973 #endif
974 case OPT_FALLBACKSCSV:
975 fallback_scsv = 1;
976 break;
977 case OPT_KEYFORM:
978 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &key_format))
979 goto opthelp;
980 break;
981 case OPT_PASS:
982 passarg = opt_arg();
983 break;
984 case OPT_CERT_CHAIN:
985 chain_file = opt_arg();
986 break;
987 case OPT_KEY:
988 key_file = opt_arg();
989 break;
990 case OPT_RECONNECT:
991 reconnect = 5;
992 break;
993 case OPT_CAPATH:
994 CApath = opt_arg();
995 break;
996 case OPT_CHAINCAPATH:
997 chCApath = opt_arg();
998 break;
999 case OPT_VERIFYCAPATH:
1000 vfyCApath = opt_arg();
1001 break;
1002 case OPT_BUILD_CHAIN:
1003 build_chain = 1;
1004 break;
1005 case OPT_CAFILE:
1006 CAfile = opt_arg();
1007 break;
1008 case OPT_CHAINCAFILE:
1009 chCAfile = opt_arg();
1010 break;
1011 case OPT_VERIFYCAFILE:
1012 vfyCAfile = opt_arg();
1013 break;
1014 #ifndef OPENSSL_NO_TLSEXT
1015 case OPT_NEXTPROTONEG:
1016 next_proto_neg_in = opt_arg();
1017 break;
1018 case OPT_ALPN:
1019 alpn_in = opt_arg();
1020 break;
1021 case OPT_SERVERINFO:
1022 p = opt_arg();
1023 len = strlen(p);
1024 for (start = 0, i = 0; i <= len; ++i) {
1025 if (i == len || p[i] == ',') {
1026 serverinfo_types[serverinfo_count] = atoi(p + start);
1027 if (++serverinfo_count == MAX_SI_TYPES)
1028 break;
1029 start = i + 1;
1030 }
1031 }
1032 break;
1033 #endif
1034 case OPT_STARTTLS:
1035 if (!opt_pair(opt_arg(), services, &starttls_proto))
1036 goto end;
1037 #ifndef OPENSSL_NO_TLSEXT
1038 case OPT_SERVERNAME:
1039 servername = opt_arg();
1040 /* meth=TLSv1_client_method(); */
1041 break;
1042 #endif
1043 #ifndef OPENSSL_NO_JPAKE
1044 case OPT_JPAKE:
1045 jpake_secret = opt_arg();
1046 break;
1047 #endif
1048 case OPT_USE_SRTP:
1049 srtp_profiles = opt_arg();
1050 break;
1051 case OPT_KEYMATEXPORT:
1052 keymatexportlabel = opt_arg();
1053 break;
1054 case OPT_KEYMATEXPORTLEN:
1055 keymatexportlen = atoi(opt_arg());
1056 break;
1057 }
1058 }
1059 argc = opt_num_rest();
1060 argv = opt_rest();
1061
1062 if (unix_path && (socket_type != SOCK_STREAM)) {
1063 BIO_printf(bio_err,
1064 "Can't use unix sockets and datagrams together\n");
1065 goto end;
1066 }
1067 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1068 if (jpake_secret) {
1069 if (psk_key) {
1070 BIO_printf(bio_err, "Can't use JPAKE and PSK together\n");
1071 goto end;
1072 }
1073 psk_identity = "JPAKE";
1074 }
1075 #endif
1076
1077 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1078 next_proto.status = -1;
1079 if (next_proto_neg_in) {
1080 next_proto.data =
1081 next_protos_parse(&next_proto.len, next_proto_neg_in);
1082 if (next_proto.data == NULL) {
1083 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1084 goto end;
1085 }
1086 } else
1087 next_proto.data = NULL;
1088 #endif
1089
1090 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1091 BIO_printf(bio_err, "Error getting password\n");
1092 goto end;
1093 }
1094
1095 if (key_file == NULL)
1096 key_file = cert_file;
1097
1098 if (key_file) {
1099 key = load_key(key_file, key_format, 0, pass, e,
1100 "client certificate private key file");
1101 if (key == NULL) {
1102 ERR_print_errors(bio_err);
1103 goto end;
1104 }
1105 }
1106
1107 if (cert_file) {
1108 cert = load_cert(cert_file, cert_format,
1109 NULL, e, "client certificate file");
1110 if (cert == NULL) {
1111 ERR_print_errors(bio_err);
1112 goto end;
1113 }
1114 }
1115
1116 if (chain_file) {
1117 chain = load_certs(chain_file, FORMAT_PEM,
1118 NULL, e, "client certificate chain");
1119 if (!chain)
1120 goto end;
1121 }
1122
1123 if (crl_file) {
1124 X509_CRL *crl;
1125 crl = load_crl(crl_file, crl_format);
1126 if (crl == NULL) {
1127 BIO_puts(bio_err, "Error loading CRL\n");
1128 ERR_print_errors(bio_err);
1129 goto end;
1130 }
1131 crls = sk_X509_CRL_new_null();
1132 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1133 BIO_puts(bio_err, "Error adding CRL\n");
1134 ERR_print_errors(bio_err);
1135 X509_CRL_free(crl);
1136 goto end;
1137 }
1138 }
1139
1140 if (!load_excert(&exc))
1141 goto end;
1142
1143 if (!app_RAND_load_file(NULL, 1) && inrand == NULL
1144 && !RAND_status()) {
1145 BIO_printf(bio_err,
1146 "warning, not much extra random data, consider using the -rand option\n");
1147 }
1148 if (inrand != NULL) {
1149 randamt = app_RAND_load_files(inrand);
1150 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", randamt);
1151 }
1152
1153 if (bio_c_out == NULL) {
1154 if (c_quiet && !c_debug) {
1155 bio_c_out = BIO_new(BIO_s_null());
1156 if (c_msg && !bio_c_msg)
1157 bio_c_msg = dup_bio_out();
1158 } else if (bio_c_out == NULL)
1159 bio_c_out = dup_bio_out();
1160 }
1161 #ifndef OPENSSL_NO_SRP
1162 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1163 BIO_printf(bio_err, "Error getting password\n");
1164 goto end;
1165 }
1166 #endif
1167
1168 ctx = SSL_CTX_new(meth);
1169 if (ctx == NULL) {
1170 ERR_print_errors(bio_err);
1171 goto end;
1172 }
1173
1174 if (sdebug)
1175 ssl_ctx_security_debug(ctx, sdebug);
1176
1177 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1178 BIO_printf(bio_err, "Error setting verify params\n");
1179 ERR_print_errors(bio_err);
1180 goto end;
1181 }
1182
1183 if (!config_ctx(cctx, ssl_args, ctx, 1, jpake_secret == NULL))
1184 goto end;
1185
1186 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1187 crls, crl_download)) {
1188 BIO_printf(bio_err, "Error loading store locations\n");
1189 ERR_print_errors(bio_err);
1190 goto end;
1191 }
1192 #ifndef OPENSSL_NO_ENGINE
1193 if (ssl_client_engine) {
1194 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1195 BIO_puts(bio_err, "Error setting client auth engine\n");
1196 ERR_print_errors(bio_err);
1197 ENGINE_free(ssl_client_engine);
1198 goto end;
1199 }
1200 ENGINE_free(ssl_client_engine);
1201 }
1202 #endif
1203
1204 #ifndef OPENSSL_NO_PSK
1205 if (psk_key != NULL || jpake_secret) {
1206 if (c_debug)
1207 BIO_printf(bio_c_out,
1208 "PSK key given or JPAKE in use, setting client callback\n");
1209 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1210 }
1211 #endif
1212 #ifndef OPENSSL_NO_SRTP
1213 if (srtp_profiles != NULL) {
1214 /* Returns 0 on success! */
1215 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1216 BIO_printf(bio_err, "Error setting SRTP profile\n");
1217 ERR_print_errors(bio_err);
1218 goto end;
1219 }
1220 }
1221 #endif
1222
1223 if (exc)
1224 ssl_ctx_set_excert(ctx, exc);
1225
1226 #if !defined(OPENSSL_NO_TLSEXT)
1227 # if !defined(OPENSSL_NO_NEXTPROTONEG)
1228 if (next_proto.data)
1229 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1230 # endif
1231 if (alpn_in) {
1232 unsigned short alpn_len;
1233 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1234
1235 if (alpn == NULL) {
1236 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1237 goto end;
1238 }
1239 /* Returns 0 on success! */
1240 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1241 BIO_printf(bio_err, "Error setting ALPN\n");
1242 goto end;
1243 }
1244 OPENSSL_free(alpn);
1245 }
1246 #endif
1247 #ifndef OPENSSL_NO_TLSEXT
1248 for (i = 0; i < serverinfo_count; i++) {
1249 if (!SSL_CTX_add_client_custom_ext(ctx,
1250 serverinfo_types[i],
1251 NULL, NULL, NULL,
1252 serverinfo_cli_parse_cb, NULL)) {
1253 BIO_printf(bio_err,
1254 "Warning: Unable to add custom extension %u, skipping\n",
1255 serverinfo_types[i]);
1256 }
1257 }
1258 #endif
1259
1260 if (state)
1261 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1262
1263 SSL_CTX_set_verify(ctx, verify, verify_callback);
1264
1265 if (!ctx_set_verify_locations(ctx, CAfile, CApath)) {
1266 ERR_print_errors(bio_err);
1267 goto end;
1268 }
1269
1270 ssl_ctx_add_crls(ctx, crls, crl_download);
1271
1272 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1273 goto end;
1274
1275 #ifndef OPENSSL_NO_TLSEXT
1276 if (servername != NULL) {
1277 tlsextcbp.biodebug = bio_err;
1278 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1279 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1280 }
1281 # ifndef OPENSSL_NO_SRP
1282 if (srp_arg.srplogin) {
1283 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1284 BIO_printf(bio_err, "Unable to set SRP username\n");
1285 goto end;
1286 }
1287 srp_arg.msg = c_msg;
1288 srp_arg.debug = c_debug;
1289 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1290 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1291 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1292 if (c_msg || c_debug || srp_arg.amp == 0)
1293 SSL_CTX_set_srp_verify_param_callback(ctx,
1294 ssl_srp_verify_param_cb);
1295 }
1296 # endif
1297 #endif
1298
1299 con = SSL_new(ctx);
1300 if (sess_in) {
1301 SSL_SESSION *sess;
1302 BIO *stmp = BIO_new_file(sess_in, "r");
1303 if (!stmp) {
1304 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1305 ERR_print_errors(bio_err);
1306 goto end;
1307 }
1308 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1309 BIO_free(stmp);
1310 if (!sess) {
1311 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1312 ERR_print_errors(bio_err);
1313 goto end;
1314 }
1315 if (!SSL_set_session(con, sess)) {
1316 BIO_printf(bio_err, "Can't set session\n");
1317 ERR_print_errors(bio_err);
1318 goto end;
1319 }
1320 SSL_SESSION_free(sess);
1321 }
1322
1323 if (fallback_scsv)
1324 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1325
1326 #ifndef OPENSSL_NO_TLSEXT
1327 if (servername != NULL) {
1328 if (!SSL_set_tlsext_host_name(con, servername)) {
1329 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1330 ERR_print_errors(bio_err);
1331 goto end;
1332 }
1333 }
1334 #endif
1335 #ifndef OPENSSL_NO_KRB5
1336 if (con && (kctx = kssl_ctx_new()) != NULL) {
1337 SSL_set0_kssl_ctx(con, kctx);
1338 kssl_ctx_setstring(kctx, KSSL_SERVER, host);
1339 if (krb5svc)
1340 kssl_ctx_setstring(kctx, KSSL_SERVICE, krb5svc);
1341 }
1342 #endif /* OPENSSL_NO_KRB5 */
1343
1344 re_start:
1345 #ifdef NO_SYS_UN_H
1346 if (init_client(&s, host, port, socket_type) == 0)
1347 #else
1348 if ((!unix_path && (init_client(&s, host, port, socket_type) == 0)) ||
1349 (unix_path && (init_client_unix(&s, unix_path) == 0)))
1350 #endif
1351 {
1352 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
1353 SHUTDOWN(s);
1354 goto end;
1355 }
1356 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
1357
1358 #ifdef FIONBIO
1359 if (c_nbio) {
1360 unsigned long l = 1;
1361 BIO_printf(bio_c_out, "turning on non blocking io\n");
1362 if (BIO_socket_ioctl(s, FIONBIO, &l) < 0) {
1363 ERR_print_errors(bio_err);
1364 goto end;
1365 }
1366 }
1367 #endif
1368 if (c_Pause & 0x01)
1369 SSL_set_debug(con, 1);
1370
1371 if (socket_type == SOCK_DGRAM) {
1372
1373 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
1374 if (getsockname(s, &peer, (void *)&peerlen) < 0) {
1375 BIO_printf(bio_err, "getsockname:errno=%d\n",
1376 get_last_socket_error());
1377 SHUTDOWN(s);
1378 goto end;
1379 }
1380
1381 (void)BIO_ctrl_set_connected(sbio, 1, &peer);
1382
1383 if (enable_timeouts) {
1384 timeout.tv_sec = 0;
1385 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1386 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1387
1388 timeout.tv_sec = 0;
1389 timeout.tv_usec = DGRAM_SND_TIMEOUT;
1390 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1391 }
1392
1393 if (socket_mtu) {
1394 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
1395 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
1396 DTLS_get_link_min_mtu(con));
1397 BIO_free(sbio);
1398 goto shut;
1399 }
1400 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1401 if (!DTLS_set_link_mtu(con, socket_mtu)) {
1402 BIO_printf(bio_err, "Failed to set MTU\n");
1403 BIO_free(sbio);
1404 goto shut;
1405 }
1406 } else
1407 /* want to do MTU discovery */
1408 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1409 } else
1410 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1411
1412 if (nbio_test) {
1413 BIO *test;
1414
1415 test = BIO_new(BIO_f_nbio_test());
1416 sbio = BIO_push(test, sbio);
1417 }
1418
1419 if (c_debug) {
1420 SSL_set_debug(con, 1);
1421 BIO_set_callback(sbio, bio_dump_callback);
1422 BIO_set_callback_arg(sbio, (char *)bio_c_out);
1423 }
1424 if (c_msg) {
1425 #ifndef OPENSSL_NO_SSL_TRACE
1426 if (c_msg == 2)
1427 SSL_set_msg_callback(con, SSL_trace);
1428 else
1429 #endif
1430 SSL_set_msg_callback(con, msg_cb);
1431 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1432 }
1433 #ifndef OPENSSL_NO_TLSEXT
1434 if (c_tlsextdebug) {
1435 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1436 SSL_set_tlsext_debug_arg(con, bio_c_out);
1437 }
1438 if (c_status_req) {
1439 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1440 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1441 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1442 }
1443 #endif
1444 #ifndef OPENSSL_NO_JPAKE
1445 if (jpake_secret)
1446 jpake_client_auth(bio_c_out, sbio, jpake_secret);
1447 #endif
1448
1449 SSL_set_bio(con, sbio, sbio);
1450 SSL_set_connect_state(con);
1451
1452 /* ok, lets connect */
1453 width = SSL_get_fd(con) + 1;
1454
1455 read_tty = 1;
1456 write_tty = 0;
1457 tty_on = 0;
1458 read_ssl = 1;
1459 write_ssl = 1;
1460
1461 cbuf_len = 0;
1462 cbuf_off = 0;
1463 sbuf_len = 0;
1464 sbuf_off = 0;
1465
1466 switch ((PROTOCOL_CHOICE) starttls_proto) {
1467 case PROTO_OFF:
1468 break;
1469 case PROTO_SMTP:
1470 {
1471 /*
1472 * This is an ugly hack that does a lot of assumptions. We do
1473 * have to handle multi-line responses which may come in a single
1474 * packet or not. We therefore have to use BIO_gets() which does
1475 * need a buffering BIO. So during the initial chitchat we do
1476 * push a buffering BIO into the chain that is removed again
1477 * later on to not disturb the rest of the s_client operation.
1478 */
1479 int foundit = 0;
1480 BIO *fbio = BIO_new(BIO_f_buffer());
1481 BIO_push(fbio, sbio);
1482 /* wait for multi-line response to end from SMTP */
1483 do {
1484 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1485 }
1486 while (mbuf_len > 3 && mbuf[3] == '-');
1487 BIO_printf(fbio, "EHLO %s\r\n", ehlo);
1488 (void)BIO_flush(fbio);
1489 /* wait for multi-line response to end EHLO SMTP response */
1490 do {
1491 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1492 if (strstr(mbuf, "STARTTLS"))
1493 foundit = 1;
1494 }
1495 while (mbuf_len > 3 && mbuf[3] == '-');
1496 (void)BIO_flush(fbio);
1497 BIO_pop(fbio);
1498 BIO_free(fbio);
1499 if (!foundit)
1500 BIO_printf(bio_err,
1501 "didn't found starttls in server response,"
1502 " try anyway...\n");
1503 BIO_printf(sbio, "STARTTLS\r\n");
1504 BIO_read(sbio, sbuf, BUFSIZZ);
1505 }
1506 break;
1507 case PROTO_POP3:
1508 {
1509 BIO_read(sbio, mbuf, BUFSIZZ);
1510 BIO_printf(sbio, "STLS\r\n");
1511 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
1512 if (mbuf_len < 0) {
1513 BIO_printf(bio_err, "BIO_read failed\n");
1514 goto end;
1515 }
1516 }
1517 break;
1518 case PROTO_IMAP:
1519 {
1520 int foundit = 0;
1521 BIO *fbio = BIO_new(BIO_f_buffer());
1522 BIO_push(fbio, sbio);
1523 BIO_gets(fbio, mbuf, BUFSIZZ);
1524 /* STARTTLS command requires CAPABILITY... */
1525 BIO_printf(fbio, ". CAPABILITY\r\n");
1526 (void)BIO_flush(fbio);
1527 /* wait for multi-line CAPABILITY response */
1528 do {
1529 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1530 if (strstr(mbuf, "STARTTLS"))
1531 foundit = 1;
1532 }
1533 while (mbuf_len > 3 && mbuf[0] != '.');
1534 (void)BIO_flush(fbio);
1535 BIO_pop(fbio);
1536 BIO_free(fbio);
1537 if (!foundit)
1538 BIO_printf(bio_err,
1539 "didn't found STARTTLS in server response,"
1540 " try anyway...\n");
1541 BIO_printf(sbio, ". STARTTLS\r\n");
1542 BIO_read(sbio, sbuf, BUFSIZZ);
1543 }
1544 break;
1545 case PROTO_FTP:
1546 {
1547 BIO *fbio = BIO_new(BIO_f_buffer());
1548 BIO_push(fbio, sbio);
1549 /* wait for multi-line response to end from FTP */
1550 do {
1551 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1552 }
1553 while (mbuf_len > 3 && mbuf[3] == '-');
1554 (void)BIO_flush(fbio);
1555 BIO_pop(fbio);
1556 BIO_free(fbio);
1557 BIO_printf(sbio, "AUTH TLS\r\n");
1558 BIO_read(sbio, sbuf, BUFSIZZ);
1559 }
1560 break;
1561 case PROTO_XMPP:
1562 {
1563 int seen = 0;
1564 BIO_printf(sbio, "<stream:stream "
1565 "xmlns:stream='http://etherx.jabber.org/streams' "
1566 "xmlns='jabber:client' to='%s' version='1.0'>",
1567 xmpphost ? xmpphost : host);
1568 seen = BIO_read(sbio, mbuf, BUFSIZZ);
1569 mbuf[seen] = 0;
1570 while (!strstr
1571 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
1572 && !strstr(mbuf,
1573 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
1574 {
1575 seen = BIO_read(sbio, mbuf, BUFSIZZ);
1576
1577 if (seen <= 0)
1578 goto shut;
1579
1580 mbuf[seen] = 0;
1581 }
1582 BIO_printf(sbio,
1583 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1584 seen = BIO_read(sbio, sbuf, BUFSIZZ);
1585 sbuf[seen] = 0;
1586 if (!strstr(sbuf, "<proceed"))
1587 goto shut;
1588 mbuf[0] = 0;
1589 }
1590 break;
1591 case PROTO_TELNET:
1592 {
1593 static const unsigned char tls_do[] = {
1594 /* IAC DO START_TLS */
1595 255, 253, 46
1596 };
1597 static const unsigned char tls_will[] = {
1598 /* IAC WILL START_TLS */
1599 255, 251, 46
1600 };
1601 static const unsigned char tls_follows[] = {
1602 /* IAC SB START_TLS FOLLOWS IAC SE */
1603 255, 250, 46, 1, 255, 240
1604 };
1605 int bytes;
1606
1607 /* Telnet server should demand we issue START_TLS */
1608 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
1609 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
1610 goto shut;
1611 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
1612 BIO_write(sbio, tls_will, 3);
1613 BIO_write(sbio, tls_follows, 6);
1614 (void)BIO_flush(sbio);
1615 /* Telnet server also sent the FOLLOWS sub-command */
1616 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
1617 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
1618 goto shut;
1619 }
1620 }
1621
1622 for (;;) {
1623 FD_ZERO(&readfds);
1624 FD_ZERO(&writefds);
1625
1626 if ((SSL_version(con) == DTLS1_VERSION) &&
1627 DTLSv1_get_timeout(con, &timeout))
1628 timeoutp = &timeout;
1629 else
1630 timeoutp = NULL;
1631
1632 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
1633 in_init = 1;
1634 tty_on = 0;
1635 } else {
1636 tty_on = 1;
1637 if (in_init) {
1638 in_init = 0;
1639 #ifndef OPENSSL_NO_TLSEXT
1640 if (servername != NULL && !SSL_session_reused(con)) {
1641 BIO_printf(bio_c_out,
1642 "Server did %sacknowledge servername extension.\n",
1643 tlsextcbp.ack ? "" : "not ");
1644 }
1645 #endif
1646 if (sess_out) {
1647 BIO *stmp = BIO_new_file(sess_out, "w");
1648 if (stmp) {
1649 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
1650 BIO_free(stmp);
1651 } else
1652 BIO_printf(bio_err, "Error writing session file %s\n",
1653 sess_out);
1654 }
1655 if (c_brief) {
1656 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
1657 print_ssl_summary(con);
1658 }
1659
1660 print_stuff(bio_c_out, con, full_log);
1661 if (full_log > 0)
1662 full_log--;
1663
1664 if (starttls_proto) {
1665 BIO_write(bio_err, mbuf, mbuf_len);
1666 /* We don't need to know any more */
1667 if (!reconnect)
1668 starttls_proto = PROTO_OFF;
1669 }
1670
1671 if (reconnect) {
1672 reconnect--;
1673 BIO_printf(bio_c_out,
1674 "drop connection and then reconnect\n");
1675 SSL_shutdown(con);
1676 SSL_set_connect_state(con);
1677 SHUTDOWN(SSL_get_fd(con));
1678 goto re_start;
1679 }
1680 }
1681 }
1682
1683 ssl_pending = read_ssl && SSL_pending(con);
1684
1685 if (!ssl_pending) {
1686 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1687 if (tty_on) {
1688 if (read_tty)
1689 openssl_fdset(fileno(stdin), &readfds);
1690 if (write_tty)
1691 openssl_fdset(fileno(stdout), &writefds);
1692 }
1693 if (read_ssl)
1694 openssl_fdset(SSL_get_fd(con), &readfds);
1695 if (write_ssl)
1696 openssl_fdset(SSL_get_fd(con), &writefds);
1697 #else
1698 if (!tty_on || !write_tty) {
1699 if (read_ssl)
1700 openssl_fdset(SSL_get_fd(con), &readfds);
1701 if (write_ssl)
1702 openssl_fdset(SSL_get_fd(con), &writefds);
1703 }
1704 #endif
1705
1706 /*
1707 * Note: under VMS with SOCKETSHR the second parameter is
1708 * currently of type (int *) whereas under other systems it is
1709 * (void *) if you don't have a cast it will choke the compiler:
1710 * if you do have a cast then you can either go for (int *) or
1711 * (void *).
1712 */
1713 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1714 /*
1715 * Under Windows/DOS we make the assumption that we can always
1716 * write to the tty: therefore if we need to write to the tty we
1717 * just fall through. Otherwise we timeout the select every
1718 * second and see if there are any keypresses. Note: this is a
1719 * hack, in a proper Windows application we wouldn't do this.
1720 */
1721 i = 0;
1722 if (!write_tty) {
1723 if (read_tty) {
1724 tv.tv_sec = 1;
1725 tv.tv_usec = 0;
1726 i = select(width, (void *)&readfds, (void *)&writefds,
1727 NULL, &tv);
1728 # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1729 if (!i && (!_kbhit() || !read_tty))
1730 continue;
1731 # else
1732 if (!i && (!((_kbhit())
1733 || (WAIT_OBJECT_0 ==
1734 WaitForSingleObject(GetStdHandle
1735 (STD_INPUT_HANDLE),
1736 0)))
1737 || !read_tty))
1738 continue;
1739 # endif
1740 } else
1741 i = select(width, (void *)&readfds, (void *)&writefds,
1742 NULL, timeoutp);
1743 }
1744 #elif defined(OPENSSL_SYS_NETWARE)
1745 if (!write_tty) {
1746 if (read_tty) {
1747 tv.tv_sec = 1;
1748 tv.tv_usec = 0;
1749 i = select(width, (void *)&readfds, (void *)&writefds,
1750 NULL, &tv);
1751 } else
1752 i = select(width, (void *)&readfds, (void *)&writefds,
1753 NULL, timeoutp);
1754 }
1755 #else
1756 i = select(width, (void *)&readfds, (void *)&writefds,
1757 NULL, timeoutp);
1758 #endif
1759 if (i < 0) {
1760 BIO_printf(bio_err, "bad select %d\n",
1761 get_last_socket_error());
1762 goto shut;
1763 /* goto end; */
1764 }
1765 }
1766
1767 if ((SSL_version(con) == DTLS1_VERSION)
1768 && DTLSv1_handle_timeout(con) > 0) {
1769 BIO_printf(bio_err, "TIMEOUT occurred\n");
1770 }
1771
1772 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
1773 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
1774 switch (SSL_get_error(con, k)) {
1775 case SSL_ERROR_NONE:
1776 cbuf_off += k;
1777 cbuf_len -= k;
1778 if (k <= 0)
1779 goto end;
1780 /* we have done a write(con,NULL,0); */
1781 if (cbuf_len <= 0) {
1782 read_tty = 1;
1783 write_ssl = 0;
1784 } else { /* if (cbuf_len > 0) */
1785
1786 read_tty = 0;
1787 write_ssl = 1;
1788 }
1789 break;
1790 case SSL_ERROR_WANT_WRITE:
1791 BIO_printf(bio_c_out, "write W BLOCK\n");
1792 write_ssl = 1;
1793 read_tty = 0;
1794 break;
1795 case SSL_ERROR_WANT_READ:
1796 BIO_printf(bio_c_out, "write R BLOCK\n");
1797 write_tty = 0;
1798 read_ssl = 1;
1799 write_ssl = 0;
1800 break;
1801 case SSL_ERROR_WANT_X509_LOOKUP:
1802 BIO_printf(bio_c_out, "write X BLOCK\n");
1803 break;
1804 case SSL_ERROR_ZERO_RETURN:
1805 if (cbuf_len != 0) {
1806 BIO_printf(bio_c_out, "shutdown\n");
1807 ret = 0;
1808 goto shut;
1809 } else {
1810 read_tty = 1;
1811 write_ssl = 0;
1812 break;
1813 }
1814
1815 case SSL_ERROR_SYSCALL:
1816 if ((k != 0) || (cbuf_len != 0)) {
1817 BIO_printf(bio_err, "write:errno=%d\n",
1818 get_last_socket_error());
1819 goto shut;
1820 } else {
1821 read_tty = 1;
1822 write_ssl = 0;
1823 }
1824 break;
1825 case SSL_ERROR_SSL:
1826 ERR_print_errors(bio_err);
1827 goto shut;
1828 }
1829 }
1830 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1831 /* Assume Windows/DOS/BeOS can always write */
1832 else if (!ssl_pending && write_tty)
1833 #else
1834 else if (!ssl_pending && FD_ISSET(fileno(stdout), &writefds))
1835 #endif
1836 {
1837 #ifdef CHARSET_EBCDIC
1838 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
1839 #endif
1840 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
1841
1842 if (i <= 0) {
1843 BIO_printf(bio_c_out, "DONE\n");
1844 ret = 0;
1845 goto shut;
1846 /* goto end; */
1847 }
1848
1849 sbuf_len -= i;;
1850 sbuf_off += i;
1851 if (sbuf_len <= 0) {
1852 read_ssl = 1;
1853 write_tty = 0;
1854 }
1855 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
1856 #ifdef RENEG
1857 {
1858 static int iiii;
1859 if (++iiii == 52) {
1860 SSL_renegotiate(con);
1861 iiii = 0;
1862 }
1863 }
1864 #endif
1865 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
1866
1867 switch (SSL_get_error(con, k)) {
1868 case SSL_ERROR_NONE:
1869 if (k <= 0)
1870 goto end;
1871 sbuf_off = 0;
1872 sbuf_len = k;
1873
1874 read_ssl = 0;
1875 write_tty = 1;
1876 break;
1877 case SSL_ERROR_WANT_WRITE:
1878 BIO_printf(bio_c_out, "read W BLOCK\n");
1879 write_ssl = 1;
1880 read_tty = 0;
1881 break;
1882 case SSL_ERROR_WANT_READ:
1883 BIO_printf(bio_c_out, "read R BLOCK\n");
1884 write_tty = 0;
1885 read_ssl = 1;
1886 if ((read_tty == 0) && (write_ssl == 0))
1887 write_ssl = 1;
1888 break;
1889 case SSL_ERROR_WANT_X509_LOOKUP:
1890 BIO_printf(bio_c_out, "read X BLOCK\n");
1891 break;
1892 case SSL_ERROR_SYSCALL:
1893 ret = get_last_socket_error();
1894 if (c_brief)
1895 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
1896 else
1897 BIO_printf(bio_err, "read:errno=%d\n", ret);
1898 goto shut;
1899 case SSL_ERROR_ZERO_RETURN:
1900 BIO_printf(bio_c_out, "closed\n");
1901 ret = 0;
1902 goto shut;
1903 case SSL_ERROR_SSL:
1904 ERR_print_errors(bio_err);
1905 goto shut;
1906 /* break; */
1907 }
1908 }
1909 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
1910 # if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
1911 else if (_kbhit())
1912 # else
1913 else if ((_kbhit())
1914 || (WAIT_OBJECT_0 ==
1915 WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
1916 # endif
1917 #elif defined (OPENSSL_SYS_NETWARE)
1918 else if (_kbhit())
1919 #else
1920 else if (FD_ISSET(fileno(stdin), &readfds))
1921 #endif
1922 {
1923 if (crlf) {
1924 int j, lf_num;
1925
1926 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
1927 lf_num = 0;
1928 /* both loops are skipped when i <= 0 */
1929 for (j = 0; j < i; j++)
1930 if (cbuf[j] == '\n')
1931 lf_num++;
1932 for (j = i - 1; j >= 0; j--) {
1933 cbuf[j + lf_num] = cbuf[j];
1934 if (cbuf[j] == '\n') {
1935 lf_num--;
1936 i++;
1937 cbuf[j + lf_num] = '\r';
1938 }
1939 }
1940 assert(lf_num == 0);
1941 } else
1942 i = raw_read_stdin(cbuf, BUFSIZZ);
1943
1944 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
1945 BIO_printf(bio_err, "DONE\n");
1946 ret = 0;
1947 goto shut;
1948 }
1949
1950 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
1951 BIO_printf(bio_err, "RENEGOTIATING\n");
1952 SSL_renegotiate(con);
1953 cbuf_len = 0;
1954 }
1955 #ifndef OPENSSL_NO_HEARTBEATS
1956 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
1957 BIO_printf(bio_err, "HEARTBEATING\n");
1958 SSL_heartbeat(con);
1959 cbuf_len = 0;
1960 }
1961 #endif
1962 else {
1963 cbuf_len = i;
1964 cbuf_off = 0;
1965 #ifdef CHARSET_EBCDIC
1966 ebcdic2ascii(cbuf, cbuf, i);
1967 #endif
1968 }
1969
1970 write_ssl = 1;
1971 read_tty = 0;
1972 }
1973 }
1974
1975 ret = 0;
1976 shut:
1977 if (in_init)
1978 print_stuff(bio_c_out, con, full_log);
1979 SSL_shutdown(con);
1980 SHUTDOWN(SSL_get_fd(con));
1981 end:
1982 if (con != NULL) {
1983 if (prexit != 0)
1984 print_stuff(bio_c_out, con, 1);
1985 SSL_free(con);
1986 }
1987 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
1988 if (next_proto.data)
1989 OPENSSL_free(next_proto.data);
1990 #endif
1991 SSL_CTX_free(ctx);
1992 X509_free(cert);
1993 sk_X509_CRL_pop_free(crls, X509_CRL_free);
1994 EVP_PKEY_free(key);
1995 sk_X509_pop_free(chain, X509_free);
1996 if (pass)
1997 OPENSSL_free(pass);
1998 X509_VERIFY_PARAM_free(vpm);
1999 ssl_excert_free(exc);
2000 sk_OPENSSL_STRING_free(ssl_args);
2001 SSL_CONF_CTX_free(cctx);
2002 #ifndef OPENSSL_NO_JPAKE
2003 if (jpake_secret && psk_key)
2004 OPENSSL_free(psk_key);
2005 #endif
2006 OPENSSL_clear_free(cbuf, BUFSIZZ);
2007 OPENSSL_clear_free(sbuf, BUFSIZZ);
2008 OPENSSL_clear_free(mbuf, BUFSIZZ);
2009 BIO_free(bio_c_out);
2010 bio_c_out = NULL;
2011 BIO_free(bio_c_msg);
2012 bio_c_msg = NULL;
2013 return (ret);
2014 }
2015
2016 static void print_stuff(BIO *bio, SSL *s, int full)
2017 {
2018 X509 *peer = NULL;
2019 char buf[BUFSIZ];
2020 STACK_OF(X509) *sk;
2021 STACK_OF(X509_NAME) *sk2;
2022 const SSL_CIPHER *c;
2023 X509_NAME *xn;
2024 int i;
2025 #ifndef OPENSSL_NO_COMP
2026 const COMP_METHOD *comp, *expansion;
2027 #endif
2028 unsigned char *exportedkeymat;
2029
2030 if (full) {
2031 int got_a_chain = 0;
2032
2033 sk = SSL_get_peer_cert_chain(s);
2034 if (sk != NULL) {
2035 got_a_chain = 1;
2036
2037 BIO_printf(bio, "---\nCertificate chain\n");
2038 for (i = 0; i < sk_X509_num(sk); i++) {
2039 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)),
2040 buf, sizeof buf);
2041 BIO_printf(bio, "%2d s:%s\n", i, buf);
2042 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)),
2043 buf, sizeof buf);
2044 BIO_printf(bio, " i:%s\n", buf);
2045 if (c_showcerts)
2046 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
2047 }
2048 }
2049
2050 BIO_printf(bio, "---\n");
2051 peer = SSL_get_peer_certificate(s);
2052 if (peer != NULL) {
2053 BIO_printf(bio, "Server certificate\n");
2054
2055 /* Redundant if we showed the whole chain */
2056 if (!(c_showcerts && got_a_chain))
2057 PEM_write_bio_X509(bio, peer);
2058 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
2059 BIO_printf(bio, "subject=%s\n", buf);
2060 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
2061 BIO_printf(bio, "issuer=%s\n", buf);
2062 } else
2063 BIO_printf(bio, "no peer certificate available\n");
2064
2065 sk2 = SSL_get_client_CA_list(s);
2066 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
2067 BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
2068 for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
2069 xn = sk_X509_NAME_value(sk2, i);
2070 X509_NAME_oneline(xn, buf, sizeof(buf));
2071 BIO_write(bio, buf, strlen(buf));
2072 BIO_write(bio, "\n", 1);
2073 }
2074 } else {
2075 BIO_printf(bio, "---\nNo client certificate CA names sent\n");
2076 }
2077
2078 ssl_print_sigalgs(bio, s);
2079 ssl_print_tmp_key(bio, s);
2080
2081 BIO_printf(bio,
2082 "---\nSSL handshake has read %ld bytes and written %ld bytes\n",
2083 BIO_number_read(SSL_get_rbio(s)),
2084 BIO_number_written(SSL_get_wbio(s)));
2085 }
2086 BIO_printf(bio, (SSL_cache_hit(s) ? "---\nReused, " : "---\nNew, "));
2087 c = SSL_get_current_cipher(s);
2088 BIO_printf(bio, "%s, Cipher is %s\n",
2089 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2090 if (peer != NULL) {
2091 EVP_PKEY *pktmp;
2092 pktmp = X509_get_pubkey(peer);
2093 BIO_printf(bio, "Server public key is %d bit\n",
2094 EVP_PKEY_bits(pktmp));
2095 EVP_PKEY_free(pktmp);
2096 }
2097 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2098 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2099 #ifndef OPENSSL_NO_COMP
2100 comp = SSL_get_current_compression(s);
2101 expansion = SSL_get_current_expansion(s);
2102 BIO_printf(bio, "Compression: %s\n",
2103 comp ? SSL_COMP_get_name(comp) : "NONE");
2104 BIO_printf(bio, "Expansion: %s\n",
2105 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2106 #endif
2107
2108 #ifdef SSL_DEBUG
2109 {
2110 /* Print out local port of connection: useful for debugging */
2111 int sock;
2112 struct sockaddr_in ladd;
2113 socklen_t ladd_size = sizeof(ladd);
2114 sock = SSL_get_fd(s);
2115 getsockname(sock, (struct sockaddr *)&ladd, &ladd_size);
2116 BIO_printf(bio_c_out, "LOCAL PORT is %u\n", ntohs(ladd.sin_port));
2117 }
2118 #endif
2119
2120 #if !defined(OPENSSL_NO_TLSEXT)
2121 # if !defined(OPENSSL_NO_NEXTPROTONEG)
2122 if (next_proto.status != -1) {
2123 const unsigned char *proto;
2124 unsigned int proto_len;
2125 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2126 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2127 BIO_write(bio, proto, proto_len);
2128 BIO_write(bio, "\n", 1);
2129 }
2130 # endif
2131 {
2132 const unsigned char *proto;
2133 unsigned int proto_len;
2134 SSL_get0_alpn_selected(s, &proto, &proto_len);
2135 if (proto_len > 0) {
2136 BIO_printf(bio, "ALPN protocol: ");
2137 BIO_write(bio, proto, proto_len);
2138 BIO_write(bio, "\n", 1);
2139 } else
2140 BIO_printf(bio, "No ALPN negotiated\n");
2141 }
2142 #endif
2143
2144 #ifndef OPENSSL_NO_SRTP
2145 {
2146 SRTP_PROTECTION_PROFILE *srtp_profile =
2147 SSL_get_selected_srtp_profile(s);
2148
2149 if (srtp_profile)
2150 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
2151 srtp_profile->name);
2152 }
2153 #endif
2154
2155 SSL_SESSION_print(bio, SSL_get_session(s));
2156 if (keymatexportlabel != NULL) {
2157 BIO_printf(bio, "Keying material exporter:\n");
2158 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
2159 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
2160 exportedkeymat = app_malloc(keymatexportlen, "export key");
2161 if (!SSL_export_keying_material(s, exportedkeymat,
2162 keymatexportlen,
2163 keymatexportlabel,
2164 strlen(keymatexportlabel),
2165 NULL, 0, 0)) {
2166 BIO_printf(bio, " Error\n");
2167 } else {
2168 BIO_printf(bio, " Keying material: ");
2169 for (i = 0; i < keymatexportlen; i++)
2170 BIO_printf(bio, "%02X", exportedkeymat[i]);
2171 BIO_printf(bio, "\n");
2172 }
2173 OPENSSL_free(exportedkeymat);
2174 }
2175 BIO_printf(bio, "---\n");
2176 X509_free(peer);
2177 /* flush, or debugging output gets mixed with http response */
2178 (void)BIO_flush(bio);
2179 }
2180
2181 #ifndef OPENSSL_NO_TLSEXT
2182
2183 static int ocsp_resp_cb(SSL *s, void *arg)
2184 {
2185 const unsigned char *p;
2186 int len;
2187 OCSP_RESPONSE *rsp;
2188 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2189 BIO_puts(arg, "OCSP response: ");
2190 if (!p) {
2191 BIO_puts(arg, "no response sent\n");
2192 return 1;
2193 }
2194 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2195 if (!rsp) {
2196 BIO_puts(arg, "response parse error\n");
2197 BIO_dump_indent(arg, (char *)p, len, 4);
2198 return 0;
2199 }
2200 BIO_puts(arg, "\n======================================\n");
2201 OCSP_RESPONSE_print(arg, rsp, 0);
2202 BIO_puts(arg, "======================================\n");
2203 OCSP_RESPONSE_free(rsp);
2204 return 1;
2205 }
2206
2207 #endif
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