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1 /*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 /* ====================================================================
11 * Copyright 2005 Nokia. All rights reserved.
12 *
13 * The portions of the attached software ("Contribution") is developed by
14 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
15 * license.
16 *
17 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
18 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
19 * support (see RFC 4279) to OpenSSL.
20 *
21 * No patent licenses or other rights except those expressly stated in
22 * the OpenSSL open source license shall be deemed granted or received
23 * expressly, by implication, estoppel, or otherwise.
24 *
25 * No assurances are provided by Nokia that the Contribution does not
26 * infringe the patent or other intellectual property rights of any third
27 * party or that the license provides you with all the necessary rights
28 * to make use of the Contribution.
29 *
30 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
31 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
32 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
33 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
34 * OTHERWISE.
35 */
36
37 #include <ctype.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <errno.h>
42 #include <openssl/e_os2.h>
43
44 #ifndef OPENSSL_NO_SOCK
45
46 /*
47 * With IPv6, it looks like Digital has mixed up the proper order of
48 * recursive header file inclusion, resulting in the compiler complaining
49 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
50 * needed to have fileno() declared correctly... So let's define u_int
51 */
52 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
53 # define __U_INT
54 typedef unsigned int u_int;
55 #endif
56
57 #define USE_SOCKETS
58 #include "apps.h"
59 #include <openssl/x509.h>
60 #include <openssl/ssl.h>
61 #include <openssl/err.h>
62 #include <openssl/pem.h>
63 #include <openssl/rand.h>
64 #include <openssl/ocsp.h>
65 #include <openssl/bn.h>
66 #include <openssl/async.h>
67 #ifndef OPENSSL_NO_SRP
68 # include <openssl/srp.h>
69 #endif
70 #ifndef OPENSSL_NO_CT
71 # include <openssl/ct.h>
72 #endif
73 #include "s_apps.h"
74 #include "timeouts.h"
75
76 #if defined(__has_feature)
77 # if __has_feature(memory_sanitizer)
78 # include <sanitizer/msan_interface.h>
79 # endif
80 #endif
81
82 #undef BUFSIZZ
83 #define BUFSIZZ 1024*8
84 #define S_CLIENT_IRC_READ_TIMEOUT 8
85
86 static char *prog;
87 static int c_debug = 0;
88 static int c_showcerts = 0;
89 static char *keymatexportlabel = NULL;
90 static int keymatexportlen = 20;
91 static BIO *bio_c_out = NULL;
92 static int c_quiet = 0;
93
94 static void print_stuff(BIO *berr, SSL *con, int full);
95 #ifndef OPENSSL_NO_OCSP
96 static int ocsp_resp_cb(SSL *s, void *arg);
97 #endif
98
99 static int saved_errno;
100
101 static void save_errno(void)
102 {
103 saved_errno = errno;
104 errno = 0;
105 }
106
107 static int restore_errno(void)
108 {
109 int ret = errno;
110 errno = saved_errno;
111 return ret;
112 }
113
114 static void do_ssl_shutdown(SSL *ssl)
115 {
116 int ret;
117
118 do {
119 /* We only do unidirectional shutdown */
120 ret = SSL_shutdown(ssl);
121 if (ret < 0) {
122 switch (SSL_get_error(ssl, ret)) {
123 case SSL_ERROR_WANT_READ:
124 case SSL_ERROR_WANT_WRITE:
125 case SSL_ERROR_WANT_ASYNC:
126 case SSL_ERROR_WANT_ASYNC_JOB:
127 /* We just do busy waiting. Nothing clever */
128 continue;
129 }
130 ret = 0;
131 }
132 } while (ret < 0);
133 }
134
135 #ifndef OPENSSL_NO_PSK
136 /* Default PSK identity and key */
137 static char *psk_identity = "Client_identity";
138 /*
139 * char *psk_key=NULL; by default PSK is not used
140 */
141
142 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
143 unsigned int max_identity_len,
144 unsigned char *psk,
145 unsigned int max_psk_len)
146 {
147 int ret;
148 long key_len;
149 unsigned char *key;
150
151 if (c_debug)
152 BIO_printf(bio_c_out, "psk_client_cb\n");
153 if (!hint) {
154 /* no ServerKeyExchange message */
155 if (c_debug)
156 BIO_printf(bio_c_out,
157 "NULL received PSK identity hint, continuing anyway\n");
158 } else if (c_debug)
159 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
160
161 /*
162 * lookup PSK identity and PSK key based on the given identity hint here
163 */
164 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
165 if (ret < 0 || (unsigned int)ret > max_identity_len)
166 goto out_err;
167 if (c_debug)
168 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
169 ret);
170
171 /* convert the PSK key to binary */
172 key = OPENSSL_hexstr2buf(psk_key, &key_len);
173 if (key == NULL) {
174 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
175 psk_key);
176 return 0;
177 }
178 if (key_len > max_psk_len) {
179 BIO_printf(bio_err,
180 "psk buffer of callback is too small (%d) for key (%ld)\n",
181 max_psk_len, key_len);
182 OPENSSL_free(key);
183 return 0;
184 }
185
186 memcpy(psk, key, key_len);
187 OPENSSL_free(key);
188
189 if (c_debug)
190 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
191
192 return key_len;
193 out_err:
194 if (c_debug)
195 BIO_printf(bio_err, "Error in PSK client callback\n");
196 return 0;
197 }
198 #endif
199
200 /* This is a context that we pass to callbacks */
201 typedef struct tlsextctx_st {
202 BIO *biodebug;
203 int ack;
204 } tlsextctx;
205
206 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
207 {
208 tlsextctx *p = (tlsextctx *) arg;
209 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
210 if (SSL_get_servername_type(s) != -1)
211 p->ack = !SSL_session_reused(s) && hn != NULL;
212 else
213 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
214
215 return SSL_TLSEXT_ERR_OK;
216 }
217
218 #ifndef OPENSSL_NO_SRP
219
220 /* This is a context that we pass to all callbacks */
221 typedef struct srp_arg_st {
222 char *srppassin;
223 char *srplogin;
224 int msg; /* copy from c_msg */
225 int debug; /* copy from c_debug */
226 int amp; /* allow more groups */
227 int strength; /* minimal size for N */
228 } SRP_ARG;
229
230 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
231
232 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
233 {
234 BN_CTX *bn_ctx = BN_CTX_new();
235 BIGNUM *p = BN_new();
236 BIGNUM *r = BN_new();
237 int ret =
238 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
239 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
240 p != NULL && BN_rshift1(p, N) &&
241 /* p = (N-1)/2 */
242 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
243 r != NULL &&
244 /* verify g^((N-1)/2) == -1 (mod N) */
245 BN_mod_exp(r, g, p, N, bn_ctx) &&
246 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
247
248 BN_free(r);
249 BN_free(p);
250 BN_CTX_free(bn_ctx);
251 return ret;
252 }
253
254 /*-
255 * This callback is used here for two purposes:
256 * - extended debugging
257 * - making some primality tests for unknown groups
258 * The callback is only called for a non default group.
259 *
260 * An application does not need the call back at all if
261 * only the standard groups are used. In real life situations,
262 * client and server already share well known groups,
263 * thus there is no need to verify them.
264 * Furthermore, in case that a server actually proposes a group that
265 * is not one of those defined in RFC 5054, it is more appropriate
266 * to add the group to a static list and then compare since
267 * primality tests are rather cpu consuming.
268 */
269
270 static int ssl_srp_verify_param_cb(SSL *s, void *arg)
271 {
272 SRP_ARG *srp_arg = (SRP_ARG *)arg;
273 BIGNUM *N = NULL, *g = NULL;
274
275 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
276 return 0;
277 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
278 BIO_printf(bio_err, "SRP parameters:\n");
279 BIO_printf(bio_err, "\tN=");
280 BN_print(bio_err, N);
281 BIO_printf(bio_err, "\n\tg=");
282 BN_print(bio_err, g);
283 BIO_printf(bio_err, "\n");
284 }
285
286 if (SRP_check_known_gN_param(g, N))
287 return 1;
288
289 if (srp_arg->amp == 1) {
290 if (srp_arg->debug)
291 BIO_printf(bio_err,
292 "SRP param N and g are not known params, going to check deeper.\n");
293
294 /*
295 * The srp_moregroups is a real debugging feature. Implementors
296 * should rather add the value to the known ones. The minimal size
297 * has already been tested.
298 */
299 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
300 return 1;
301 }
302 BIO_printf(bio_err, "SRP param N and g rejected.\n");
303 return 0;
304 }
305
306 # define PWD_STRLEN 1024
307
308 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
309 {
310 SRP_ARG *srp_arg = (SRP_ARG *)arg;
311 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
312 PW_CB_DATA cb_tmp;
313 int l;
314
315 cb_tmp.password = (char *)srp_arg->srppassin;
316 cb_tmp.prompt_info = "SRP user";
317 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
318 BIO_printf(bio_err, "Can't read Password\n");
319 OPENSSL_free(pass);
320 return NULL;
321 }
322 *(pass + l) = '\0';
323
324 return pass;
325 }
326
327 #endif
328
329 static char *srtp_profiles = NULL;
330
331 #ifndef OPENSSL_NO_NEXTPROTONEG
332 /* This the context that we pass to next_proto_cb */
333 typedef struct tlsextnextprotoctx_st {
334 unsigned char *data;
335 size_t len;
336 int status;
337 } tlsextnextprotoctx;
338
339 static tlsextnextprotoctx next_proto;
340
341 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
342 const unsigned char *in, unsigned int inlen,
343 void *arg)
344 {
345 tlsextnextprotoctx *ctx = arg;
346
347 if (!c_quiet) {
348 /* We can assume that |in| is syntactically valid. */
349 unsigned i;
350 BIO_printf(bio_c_out, "Protocols advertised by server: ");
351 for (i = 0; i < inlen;) {
352 if (i)
353 BIO_write(bio_c_out, ", ", 2);
354 BIO_write(bio_c_out, &in[i + 1], in[i]);
355 i += in[i] + 1;
356 }
357 BIO_write(bio_c_out, "\n", 1);
358 }
359
360 ctx->status =
361 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
362 return SSL_TLSEXT_ERR_OK;
363 }
364 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
365
366 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
367 const unsigned char *in, size_t inlen,
368 int *al, void *arg)
369 {
370 char pem_name[100];
371 unsigned char ext_buf[4 + 65536];
372
373 /* Reconstruct the type/len fields prior to extension data */
374 ext_buf[0] = ext_type >> 8;
375 ext_buf[1] = ext_type & 0xFF;
376 ext_buf[2] = inlen >> 8;
377 ext_buf[3] = inlen & 0xFF;
378 memcpy(ext_buf + 4, in, inlen);
379
380 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
381 ext_type);
382 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
383 return 1;
384 }
385
386 /*
387 * Hex decoder that tolerates optional whitespace. Returns number of bytes
388 * produced, advances inptr to end of input string.
389 */
390 static ossl_ssize_t hexdecode(const char **inptr, void *result)
391 {
392 unsigned char **out = (unsigned char **)result;
393 const char *in = *inptr;
394 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
395 unsigned char *cp = ret;
396 uint8_t byte;
397 int nibble = 0;
398
399 if (ret == NULL)
400 return -1;
401
402 for (byte = 0; *in; ++in) {
403 int x;
404
405 if (isspace(_UC(*in)))
406 continue;
407 x = OPENSSL_hexchar2int(*in);
408 if (x < 0) {
409 OPENSSL_free(ret);
410 return 0;
411 }
412 byte |= (char)x;
413 if ((nibble ^= 1) == 0) {
414 *cp++ = byte;
415 byte = 0;
416 } else {
417 byte <<= 4;
418 }
419 }
420 if (nibble != 0) {
421 OPENSSL_free(ret);
422 return 0;
423 }
424 *inptr = in;
425
426 return cp - (*out = ret);
427 }
428
429 /*
430 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
431 * inptr to next field skipping leading whitespace.
432 */
433 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
434 {
435 uint8_t *result = (uint8_t *)out;
436 const char *in = *inptr;
437 char *endp;
438 long v;
439 int e;
440
441 save_errno();
442 v = strtol(in, &endp, 10);
443 e = restore_errno();
444
445 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
446 endp == in || !isspace(_UC(*endp)) ||
447 v != (*result = (uint8_t) v)) {
448 return -1;
449 }
450 for (in = endp; isspace(_UC(*in)); ++in)
451 continue;
452
453 *inptr = in;
454 return 1;
455 }
456
457 struct tlsa_field {
458 void *var;
459 const char *name;
460 ossl_ssize_t (*parser)(const char **, void *);
461 };
462
463 static int tlsa_import_rr(SSL *con, const char *rrdata)
464 {
465 /* Not necessary to re-init these values; the "parsers" do that. */
466 static uint8_t usage;
467 static uint8_t selector;
468 static uint8_t mtype;
469 static unsigned char *data;
470 static struct tlsa_field tlsa_fields[] = {
471 { &usage, "usage", checked_uint8 },
472 { &selector, "selector", checked_uint8 },
473 { &mtype, "mtype", checked_uint8 },
474 { &data, "data", hexdecode },
475 { NULL, }
476 };
477 struct tlsa_field *f;
478 int ret;
479 const char *cp = rrdata;
480 ossl_ssize_t len = 0;
481
482 for (f = tlsa_fields; f->var; ++f) {
483 /* Returns number of bytes produced, advances cp to next field */
484 if ((len = f->parser(&cp, f->var)) <= 0) {
485 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
486 prog, f->name, rrdata);
487 return 0;
488 }
489 }
490 /* The data field is last, so len is its length */
491 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
492 OPENSSL_free(data);
493
494 if (ret == 0) {
495 ERR_print_errors(bio_err);
496 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
497 prog, rrdata);
498 return 0;
499 }
500 if (ret < 0) {
501 ERR_print_errors(bio_err);
502 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
503 prog, rrdata);
504 return 0;
505 }
506 return ret;
507 }
508
509 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
510 {
511 int num = sk_OPENSSL_STRING_num(rrset);
512 int count = 0;
513 int i;
514
515 for (i = 0; i < num; ++i) {
516 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
517 if (tlsa_import_rr(con, rrdata) > 0)
518 ++count;
519 }
520 return count > 0;
521 }
522
523 typedef enum OPTION_choice {
524 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
525 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_UNIX,
526 OPT_XMPPHOST, OPT_VERIFY,
527 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
528 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
529 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
530 OPT_SSL_CLIENT_ENGINE, OPT_RAND, OPT_IGN_EOF, OPT_NO_IGN_EOF,
531 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
532 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
533 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
534 #ifndef OPENSSL_NO_PSK
535 OPT_PSK_IDENTITY, OPT_PSK,
536 #endif
537 #ifndef OPENSSL_NO_SRP
538 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
539 OPT_SRP_MOREGROUPS,
540 #endif
541 OPT_SSL3, OPT_SSL_CONFIG,
542 OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
543 OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
544 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH,
545 OPT_VERIFYCAPATH,
546 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
547 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
548 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME,
549 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_SMTPHOST,
550 OPT_ASYNC, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
551 OPT_V_ENUM,
552 OPT_X_ENUM,
553 OPT_S_ENUM,
554 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
555 #ifndef OPENSSL_NO_CT
556 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
557 #endif
558 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME
559 } OPTION_CHOICE;
560
561 const OPTIONS s_client_options[] = {
562 {"help", OPT_HELP, '-', "Display this summary"},
563 {"host", OPT_HOST, 's', "Use -connect instead"},
564 {"port", OPT_PORT, 'p', "Use -connect instead"},
565 {"connect", OPT_CONNECT, 's',
566 "TCP/IP where to connect (default is :" PORT ")"},
567 {"proxy", OPT_PROXY, 's',
568 "Connect to via specified proxy to the real server"},
569 #ifdef AF_UNIX
570 {"unix", OPT_UNIX, 's', "Connect over unix domain sockets"},
571 #endif
572 {"4", OPT_4, '-', "Use IPv4 only"},
573 #ifdef AF_INET6
574 {"6", OPT_6, '-', "Use IPv6 only"},
575 #endif
576 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
577 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
578 {"certform", OPT_CERTFORM, 'F',
579 "Certificate format (PEM or DER) PEM default"},
580 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
581 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
582 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
583 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
584 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
585 {"no-CAfile", OPT_NOCAFILE, '-',
586 "Do not load the default certificates file"},
587 {"no-CApath", OPT_NOCAPATH, '-',
588 "Do not load certificates from the default certificates directory"},
589 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
590 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
591 "DANE TLSA rrdata presentation form"},
592 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
593 "Disable name checks when matching DANE-EE(3) TLSA records"},
594 {"reconnect", OPT_RECONNECT, '-',
595 "Drop and re-make the connection with the same Session-ID"},
596 {"showcerts", OPT_SHOWCERTS, '-', "Show all certificates in the chain"},
597 {"debug", OPT_DEBUG, '-', "Extra output"},
598 {"msg", OPT_MSG, '-', "Show protocol messages"},
599 {"msgfile", OPT_MSGFILE, '>',
600 "File to send output of -msg or -trace, instead of stdout"},
601 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
602 {"state", OPT_STATE, '-', "Print the ssl states"},
603 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
604 {"quiet", OPT_QUIET, '-', "No s_client output"},
605 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
606 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
607 {"starttls", OPT_STARTTLS, 's',
608 "Use the appropriate STARTTLS command before starting TLS"},
609 {"xmpphost", OPT_XMPPHOST, 's',
610 "Host to use with \"-starttls xmpp[-server]\""},
611 {"rand", OPT_RAND, 's',
612 "Load the file(s) into the random number generator"},
613 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
614 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
615 {"use_srtp", OPT_USE_SRTP, 's',
616 "Offer SRTP key management with a colon-separated profile list"},
617 {"keymatexport", OPT_KEYMATEXPORT, 's',
618 "Export keying material using label"},
619 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
620 "Export len bytes of keying material (default 20)"},
621 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
622 {"name", OPT_SMTPHOST, 's', "Hostname to use for \"-starttls smtp\""},
623 {"CRL", OPT_CRL, '<', "CRL file to use"},
624 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
625 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
626 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
627 "Close connection on verification error"},
628 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
629 {"brief", OPT_BRIEF, '-',
630 "Restrict output to brief summary of connection parameters"},
631 {"prexit", OPT_PREXIT, '-',
632 "Print session information when the program exits"},
633 {"security_debug", OPT_SECURITY_DEBUG, '-',
634 "Enable security debug messages"},
635 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
636 "Output more security debug output"},
637 {"cert_chain", OPT_CERT_CHAIN, '<',
638 "Certificate chain file (in PEM format)"},
639 {"chainCApath", OPT_CHAINCAPATH, '/',
640 "Use dir as certificate store path to build CA certificate chain"},
641 {"verifyCApath", OPT_VERIFYCAPATH, '/',
642 "Use dir as certificate store path to verify CA certificate"},
643 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
644 {"chainCAfile", OPT_CHAINCAFILE, '<',
645 "CA file for certificate chain (PEM format)"},
646 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
647 "CA file for certificate verification (PEM format)"},
648 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
649 {"servername", OPT_SERVERNAME, 's',
650 "Set TLS extension servername in ClientHello"},
651 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
652 "Hex dump of all TLS extensions received"},
653 #ifndef OPENSSL_NO_OCSP
654 {"status", OPT_STATUS, '-', "Request certificate status from server"},
655 #endif
656 {"serverinfo", OPT_SERVERINFO, 's',
657 "types Send empty ClientHello extensions (comma-separated numbers)"},
658 {"alpn", OPT_ALPN, 's',
659 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
660 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
661 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
662 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'n',
663 "Size used to split data for encrypt pipelines"},
664 {"max_pipelines", OPT_MAX_PIPELINES, 'n',
665 "Maximum number of encrypt/decrypt pipelines to be used"},
666 {"read_buf", OPT_READ_BUF, 'n',
667 "Default read buffer size to be used for connections"},
668 OPT_S_OPTIONS,
669 OPT_V_OPTIONS,
670 OPT_X_OPTIONS,
671 #ifndef OPENSSL_NO_SSL3
672 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
673 #endif
674 #ifndef OPENSSL_NO_TLS1
675 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
676 #endif
677 #ifndef OPENSSL_NO_TLS1_1
678 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
679 #endif
680 #ifndef OPENSSL_NO_TLS1_2
681 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
682 #endif
683 #ifndef OPENSSL_NO_DTLS
684 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
685 {"timeout", OPT_TIMEOUT, '-',
686 "Enable send/receive timeout on DTLS connections"},
687 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
688 #endif
689 #ifndef OPENSSL_NO_DTLS1
690 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
691 #endif
692 #ifndef OPENSSL_NO_DTLS1_2
693 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
694 #endif
695 #ifndef OPENSSL_NO_SSL_TRACE
696 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
697 #endif
698 #ifdef WATT32
699 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
700 #endif
701 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
702 #ifndef OPENSSL_NO_PSK
703 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
704 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
705 #endif
706 #ifndef OPENSSL_NO_SRP
707 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
708 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
709 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
710 "SRP username into second ClientHello message"},
711 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
712 "Tolerate other than the known g N values."},
713 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
714 #endif
715 #ifndef OPENSSL_NO_NEXTPROTONEG
716 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
717 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
718 #endif
719 #ifndef OPENSSL_NO_ENGINE
720 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
721 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
722 "Specify engine to be used for client certificate operations"},
723 #endif
724 #ifndef OPENSSL_NO_CT
725 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
726 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
727 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
728 #endif
729 {NULL, OPT_EOF, 0x00, NULL}
730 };
731
732 typedef enum PROTOCOL_choice {
733 PROTO_OFF,
734 PROTO_SMTP,
735 PROTO_POP3,
736 PROTO_IMAP,
737 PROTO_FTP,
738 PROTO_TELNET,
739 PROTO_XMPP,
740 PROTO_XMPP_SERVER,
741 PROTO_CONNECT,
742 PROTO_IRC
743 } PROTOCOL_CHOICE;
744
745 static const OPT_PAIR services[] = {
746 {"smtp", PROTO_SMTP},
747 {"pop3", PROTO_POP3},
748 {"imap", PROTO_IMAP},
749 {"ftp", PROTO_FTP},
750 {"xmpp", PROTO_XMPP},
751 {"xmpp-server", PROTO_XMPP_SERVER},
752 {"telnet", PROTO_TELNET},
753 {"irc", PROTO_IRC},
754 {NULL, 0}
755 };
756
757 #define IS_INET_FLAG(o) \
758 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
759 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
760
761 #define IS_PROT_FLAG(o) \
762 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
763 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
764
765 /* Free |*dest| and optionally set it to a copy of |source|. */
766 static void freeandcopy(char **dest, const char *source)
767 {
768 OPENSSL_free(*dest);
769 *dest = NULL;
770 if (source != NULL)
771 *dest = OPENSSL_strdup(source);
772 }
773
774 int s_client_main(int argc, char **argv)
775 {
776 BIO *sbio;
777 EVP_PKEY *key = NULL;
778 SSL *con = NULL;
779 SSL_CTX *ctx = NULL;
780 STACK_OF(X509) *chain = NULL;
781 X509 *cert = NULL;
782 X509_VERIFY_PARAM *vpm = NULL;
783 SSL_EXCERT *exc = NULL;
784 SSL_CONF_CTX *cctx = NULL;
785 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
786 char *dane_tlsa_domain = NULL;
787 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
788 int dane_ee_no_name = 0;
789 STACK_OF(X509_CRL) *crls = NULL;
790 const SSL_METHOD *meth = TLS_client_method();
791 const char *CApath = NULL, *CAfile = NULL;
792 char *cbuf = NULL, *sbuf = NULL;
793 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL;
794 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
795 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
796 char *port = OPENSSL_strdup(PORT);
797 char *inrand = NULL;
798 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
799 char *sess_in = NULL, *sess_out = NULL, *crl_file = NULL, *p;
800 char *xmpphost = NULL;
801 const char *ehlo = "mail.example.com";
802 struct timeval timeout, *timeoutp;
803 fd_set readfds, writefds;
804 int noCApath = 0, noCAfile = 0;
805 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
806 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
807 int prexit = 0;
808 int sdebug = 0;
809 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
810 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
811 int sbuf_len, sbuf_off, cmdletters = 1;
812 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM;
813 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
814 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
815 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
816 int at_eof = 0;
817 #endif
818 int read_buf_len = 0;
819 int fallback_scsv = 0;
820 long randamt = 0;
821 OPTION_CHOICE o;
822 #ifndef OPENSSL_NO_DTLS
823 int enable_timeouts = 0;
824 long socket_mtu = 0;
825 #endif
826 #ifndef OPENSSL_NO_ENGINE
827 ENGINE *ssl_client_engine = NULL;
828 #endif
829 ENGINE *e = NULL;
830 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
831 struct timeval tv;
832 #endif
833 char *servername = NULL;
834 const char *alpn_in = NULL;
835 tlsextctx tlsextcbp = { NULL, 0 };
836 const char *ssl_config = NULL;
837 #define MAX_SI_TYPES 100
838 unsigned short serverinfo_types[MAX_SI_TYPES];
839 int serverinfo_count = 0, start = 0, len;
840 #ifndef OPENSSL_NO_NEXTPROTONEG
841 const char *next_proto_neg_in = NULL;
842 #endif
843 #ifndef OPENSSL_NO_SRP
844 char *srppass = NULL;
845 int srp_lateuser = 0;
846 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
847 #endif
848 #ifndef OPENSSL_NO_CT
849 char *ctlog_file = NULL;
850 int ct_validation = 0;
851 #endif
852 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
853 int async = 0;
854 unsigned int split_send_fragment = 0;
855 unsigned int max_pipelines = 0;
856 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
857 int count4or6 = 0;
858 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
859 int c_tlsextdebug = 0;
860 #ifndef OPENSSL_NO_OCSP
861 int c_status_req = 0;
862 #endif
863 BIO *bio_c_msg = NULL;
864
865 FD_ZERO(&readfds);
866 FD_ZERO(&writefds);
867 /* Known false-positive of MemorySanitizer. */
868 #if defined(__has_feature)
869 # if __has_feature(memory_sanitizer)
870 __msan_unpoison(&readfds, sizeof(readfds));
871 __msan_unpoison(&writefds, sizeof(writefds));
872 # endif
873 #endif
874
875 prog = opt_progname(argv[0]);
876 c_quiet = 0;
877 c_debug = 0;
878 c_showcerts = 0;
879 c_nbio = 0;
880 vpm = X509_VERIFY_PARAM_new();
881 cctx = SSL_CONF_CTX_new();
882
883 if (vpm == NULL || cctx == NULL) {
884 BIO_printf(bio_err, "%s: out of memory\n", prog);
885 goto end;
886 }
887
888 cbuf = app_malloc(BUFSIZZ, "cbuf");
889 sbuf = app_malloc(BUFSIZZ, "sbuf");
890 mbuf = app_malloc(BUFSIZZ, "mbuf");
891
892 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
893
894 prog = opt_init(argc, argv, s_client_options);
895 while ((o = opt_next()) != OPT_EOF) {
896 /* Check for intermixing flags. */
897 if (connect_type == use_unix && IS_INET_FLAG(o)) {
898 BIO_printf(bio_err,
899 "%s: Intermixed protocol flags (unix and internet domains)\n",
900 prog);
901 goto end;
902 }
903 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
904 BIO_printf(bio_err,
905 "%s: Intermixed protocol flags (internet and unix domains)\n",
906 prog);
907 goto end;
908 }
909
910 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
911 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
912 goto end;
913 }
914 if (IS_NO_PROT_FLAG(o))
915 no_prot_opt++;
916 if (prot_opt == 1 && no_prot_opt) {
917 BIO_printf(bio_err,
918 "Cannot supply both a protocol flag and '-no_<prot>'\n");
919 goto end;
920 }
921
922 switch (o) {
923 case OPT_EOF:
924 case OPT_ERR:
925 opthelp:
926 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
927 goto end;
928 case OPT_HELP:
929 opt_help(s_client_options);
930 ret = 0;
931 goto end;
932 case OPT_4:
933 connect_type = use_inet;
934 socket_family = AF_INET;
935 count4or6++;
936 break;
937 #ifdef AF_INET6
938 case OPT_6:
939 connect_type = use_inet;
940 socket_family = AF_INET6;
941 count4or6++;
942 break;
943 #endif
944 case OPT_HOST:
945 connect_type = use_inet;
946 freeandcopy(&host, opt_arg());
947 break;
948 case OPT_PORT:
949 connect_type = use_inet;
950 freeandcopy(&port, opt_arg());
951 break;
952 case OPT_CONNECT:
953 connect_type = use_inet;
954 freeandcopy(&connectstr, opt_arg());
955 break;
956 case OPT_PROXY:
957 proxystr = opt_arg();
958 starttls_proto = PROTO_CONNECT;
959 break;
960 #ifdef AF_UNIX
961 case OPT_UNIX:
962 connect_type = use_unix;
963 socket_family = AF_UNIX;
964 freeandcopy(&host, opt_arg());
965 break;
966 #endif
967 case OPT_XMPPHOST:
968 xmpphost = opt_arg();
969 break;
970 case OPT_SMTPHOST:
971 ehlo = opt_arg();
972 break;
973 case OPT_VERIFY:
974 verify = SSL_VERIFY_PEER;
975 verify_args.depth = atoi(opt_arg());
976 if (!c_quiet)
977 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
978 break;
979 case OPT_CERT:
980 cert_file = opt_arg();
981 break;
982 case OPT_CRL:
983 crl_file = opt_arg();
984 break;
985 case OPT_CRL_DOWNLOAD:
986 crl_download = 1;
987 break;
988 case OPT_SESS_OUT:
989 sess_out = opt_arg();
990 break;
991 case OPT_SESS_IN:
992 sess_in = opt_arg();
993 break;
994 case OPT_CERTFORM:
995 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
996 goto opthelp;
997 break;
998 case OPT_CRLFORM:
999 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1000 goto opthelp;
1001 break;
1002 case OPT_VERIFY_RET_ERROR:
1003 verify_args.return_error = 1;
1004 break;
1005 case OPT_VERIFY_QUIET:
1006 verify_args.quiet = 1;
1007 break;
1008 case OPT_BRIEF:
1009 c_brief = verify_args.quiet = c_quiet = 1;
1010 break;
1011 case OPT_S_CASES:
1012 if (ssl_args == NULL)
1013 ssl_args = sk_OPENSSL_STRING_new_null();
1014 if (ssl_args == NULL
1015 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1016 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1017 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1018 goto end;
1019 }
1020 break;
1021 case OPT_V_CASES:
1022 if (!opt_verify(o, vpm))
1023 goto end;
1024 vpmtouched++;
1025 break;
1026 case OPT_X_CASES:
1027 if (!args_excert(o, &exc))
1028 goto end;
1029 break;
1030 case OPT_PREXIT:
1031 prexit = 1;
1032 break;
1033 case OPT_CRLF:
1034 crlf = 1;
1035 break;
1036 case OPT_QUIET:
1037 c_quiet = c_ign_eof = 1;
1038 break;
1039 case OPT_NBIO:
1040 c_nbio = 1;
1041 break;
1042 case OPT_NOCMDS:
1043 cmdletters = 0;
1044 break;
1045 case OPT_ENGINE:
1046 e = setup_engine(opt_arg(), 1);
1047 break;
1048 case OPT_SSL_CLIENT_ENGINE:
1049 #ifndef OPENSSL_NO_ENGINE
1050 ssl_client_engine = ENGINE_by_id(opt_arg());
1051 if (ssl_client_engine == NULL) {
1052 BIO_printf(bio_err, "Error getting client auth engine\n");
1053 goto opthelp;
1054 }
1055 #endif
1056 break;
1057 case OPT_RAND:
1058 inrand = opt_arg();
1059 break;
1060 case OPT_IGN_EOF:
1061 c_ign_eof = 1;
1062 break;
1063 case OPT_NO_IGN_EOF:
1064 c_ign_eof = 0;
1065 break;
1066 case OPT_DEBUG:
1067 c_debug = 1;
1068 break;
1069 case OPT_TLSEXTDEBUG:
1070 c_tlsextdebug = 1;
1071 break;
1072 case OPT_STATUS:
1073 #ifndef OPENSSL_NO_OCSP
1074 c_status_req = 1;
1075 #endif
1076 break;
1077 case OPT_WDEBUG:
1078 #ifdef WATT32
1079 dbug_init();
1080 #endif
1081 break;
1082 case OPT_MSG:
1083 c_msg = 1;
1084 break;
1085 case OPT_MSGFILE:
1086 bio_c_msg = BIO_new_file(opt_arg(), "w");
1087 break;
1088 case OPT_TRACE:
1089 #ifndef OPENSSL_NO_SSL_TRACE
1090 c_msg = 2;
1091 #endif
1092 break;
1093 case OPT_SECURITY_DEBUG:
1094 sdebug = 1;
1095 break;
1096 case OPT_SECURITY_DEBUG_VERBOSE:
1097 sdebug = 2;
1098 break;
1099 case OPT_SHOWCERTS:
1100 c_showcerts = 1;
1101 break;
1102 case OPT_NBIO_TEST:
1103 nbio_test = 1;
1104 break;
1105 case OPT_STATE:
1106 state = 1;
1107 break;
1108 #ifndef OPENSSL_NO_PSK
1109 case OPT_PSK_IDENTITY:
1110 psk_identity = opt_arg();
1111 break;
1112 case OPT_PSK:
1113 for (p = psk_key = opt_arg(); *p; p++) {
1114 if (isxdigit(_UC(*p)))
1115 continue;
1116 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1117 goto end;
1118 }
1119 break;
1120 #endif
1121 #ifndef OPENSSL_NO_SRP
1122 case OPT_SRPUSER:
1123 srp_arg.srplogin = opt_arg();
1124 if (min_version < TLS1_VERSION)
1125 min_version = TLS1_VERSION;
1126 break;
1127 case OPT_SRPPASS:
1128 srppass = opt_arg();
1129 if (min_version < TLS1_VERSION)
1130 min_version = TLS1_VERSION;
1131 break;
1132 case OPT_SRP_STRENGTH:
1133 srp_arg.strength = atoi(opt_arg());
1134 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1135 srp_arg.strength);
1136 if (min_version < TLS1_VERSION)
1137 min_version = TLS1_VERSION;
1138 break;
1139 case OPT_SRP_LATEUSER:
1140 srp_lateuser = 1;
1141 if (min_version < TLS1_VERSION)
1142 min_version = TLS1_VERSION;
1143 break;
1144 case OPT_SRP_MOREGROUPS:
1145 srp_arg.amp = 1;
1146 if (min_version < TLS1_VERSION)
1147 min_version = TLS1_VERSION;
1148 break;
1149 #endif
1150 case OPT_SSL_CONFIG:
1151 ssl_config = opt_arg();
1152 break;
1153 case OPT_SSL3:
1154 min_version = SSL3_VERSION;
1155 max_version = SSL3_VERSION;
1156 break;
1157 case OPT_TLS1_2:
1158 min_version = TLS1_2_VERSION;
1159 max_version = TLS1_2_VERSION;
1160 break;
1161 case OPT_TLS1_1:
1162 min_version = TLS1_1_VERSION;
1163 max_version = TLS1_1_VERSION;
1164 break;
1165 case OPT_TLS1:
1166 min_version = TLS1_VERSION;
1167 max_version = TLS1_VERSION;
1168 break;
1169 case OPT_DTLS:
1170 #ifndef OPENSSL_NO_DTLS
1171 meth = DTLS_client_method();
1172 socket_type = SOCK_DGRAM;
1173 #endif
1174 break;
1175 case OPT_DTLS1:
1176 #ifndef OPENSSL_NO_DTLS1
1177 meth = DTLS_client_method();
1178 min_version = DTLS1_VERSION;
1179 max_version = DTLS1_VERSION;
1180 socket_type = SOCK_DGRAM;
1181 #endif
1182 break;
1183 case OPT_DTLS1_2:
1184 #ifndef OPENSSL_NO_DTLS1_2
1185 meth = DTLS_client_method();
1186 min_version = DTLS1_2_VERSION;
1187 max_version = DTLS1_2_VERSION;
1188 socket_type = SOCK_DGRAM;
1189 #endif
1190 break;
1191 case OPT_TIMEOUT:
1192 #ifndef OPENSSL_NO_DTLS
1193 enable_timeouts = 1;
1194 #endif
1195 break;
1196 case OPT_MTU:
1197 #ifndef OPENSSL_NO_DTLS
1198 socket_mtu = atol(opt_arg());
1199 #endif
1200 break;
1201 case OPT_FALLBACKSCSV:
1202 fallback_scsv = 1;
1203 break;
1204 case OPT_KEYFORM:
1205 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1206 goto opthelp;
1207 break;
1208 case OPT_PASS:
1209 passarg = opt_arg();
1210 break;
1211 case OPT_CERT_CHAIN:
1212 chain_file = opt_arg();
1213 break;
1214 case OPT_KEY:
1215 key_file = opt_arg();
1216 break;
1217 case OPT_RECONNECT:
1218 reconnect = 5;
1219 break;
1220 case OPT_CAPATH:
1221 CApath = opt_arg();
1222 break;
1223 case OPT_NOCAPATH:
1224 noCApath = 1;
1225 break;
1226 case OPT_CHAINCAPATH:
1227 chCApath = opt_arg();
1228 break;
1229 case OPT_VERIFYCAPATH:
1230 vfyCApath = opt_arg();
1231 break;
1232 case OPT_BUILD_CHAIN:
1233 build_chain = 1;
1234 break;
1235 case OPT_CAFILE:
1236 CAfile = opt_arg();
1237 break;
1238 case OPT_NOCAFILE:
1239 noCAfile = 1;
1240 break;
1241 #ifndef OPENSSL_NO_CT
1242 case OPT_NOCT:
1243 ct_validation = 0;
1244 break;
1245 case OPT_CT:
1246 ct_validation = 1;
1247 break;
1248 case OPT_CTLOG_FILE:
1249 ctlog_file = opt_arg();
1250 break;
1251 #endif
1252 case OPT_CHAINCAFILE:
1253 chCAfile = opt_arg();
1254 break;
1255 case OPT_VERIFYCAFILE:
1256 vfyCAfile = opt_arg();
1257 break;
1258 case OPT_DANE_TLSA_DOMAIN:
1259 dane_tlsa_domain = opt_arg();
1260 break;
1261 case OPT_DANE_TLSA_RRDATA:
1262 if (dane_tlsa_rrset == NULL)
1263 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1264 if (dane_tlsa_rrset == NULL ||
1265 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1266 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1267 goto end;
1268 }
1269 break;
1270 case OPT_DANE_EE_NO_NAME:
1271 dane_ee_no_name = 1;
1272 break;
1273 case OPT_NEXTPROTONEG:
1274 #ifndef OPENSSL_NO_NEXTPROTONEG
1275 next_proto_neg_in = opt_arg();
1276 #endif
1277 break;
1278 case OPT_ALPN:
1279 alpn_in = opt_arg();
1280 break;
1281 case OPT_SERVERINFO:
1282 p = opt_arg();
1283 len = strlen(p);
1284 for (start = 0, i = 0; i <= len; ++i) {
1285 if (i == len || p[i] == ',') {
1286 serverinfo_types[serverinfo_count] = atoi(p + start);
1287 if (++serverinfo_count == MAX_SI_TYPES)
1288 break;
1289 start = i + 1;
1290 }
1291 }
1292 break;
1293 case OPT_STARTTLS:
1294 if (!opt_pair(opt_arg(), services, &starttls_proto))
1295 goto end;
1296 break;
1297 case OPT_SERVERNAME:
1298 servername = opt_arg();
1299 break;
1300 case OPT_USE_SRTP:
1301 srtp_profiles = opt_arg();
1302 break;
1303 case OPT_KEYMATEXPORT:
1304 keymatexportlabel = opt_arg();
1305 break;
1306 case OPT_KEYMATEXPORTLEN:
1307 keymatexportlen = atoi(opt_arg());
1308 break;
1309 case OPT_ASYNC:
1310 async = 1;
1311 break;
1312 case OPT_SPLIT_SEND_FRAG:
1313 split_send_fragment = atoi(opt_arg());
1314 if (split_send_fragment == 0) {
1315 /*
1316 * Not allowed - set to a deliberately bad value so we get an
1317 * error message below
1318 */
1319 split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH + 1;
1320 }
1321 break;
1322 case OPT_MAX_PIPELINES:
1323 max_pipelines = atoi(opt_arg());
1324 break;
1325 case OPT_READ_BUF:
1326 read_buf_len = atoi(opt_arg());
1327 break;
1328 }
1329 }
1330 if (count4or6 >= 2) {
1331 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1332 goto opthelp;
1333 }
1334 argc = opt_num_rest();
1335 if (argc != 0)
1336 goto opthelp;
1337
1338 if (proxystr) {
1339 int res;
1340 char *tmp_host = host, *tmp_port = port;
1341 if (connectstr == NULL) {
1342 BIO_printf(bio_err, "%s: -proxy requires use of -connect\n", prog);
1343 goto opthelp;
1344 }
1345 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1346 if (tmp_host != host)
1347 OPENSSL_free(tmp_host);
1348 if (tmp_port != port)
1349 OPENSSL_free(tmp_port);
1350 if (!res) {
1351 BIO_printf(bio_err,
1352 "%s: -proxy argument malformed or ambiguous\n", prog);
1353 goto end;
1354 }
1355 } else {
1356 int res = 1;
1357 char *tmp_host = host, *tmp_port = port;
1358 if (connectstr != NULL)
1359 res = BIO_parse_hostserv(connectstr, &host, &port,
1360 BIO_PARSE_PRIO_HOST);
1361 if (tmp_host != host)
1362 OPENSSL_free(tmp_host);
1363 if (tmp_port != port)
1364 OPENSSL_free(tmp_port);
1365 if (!res) {
1366 BIO_printf(bio_err,
1367 "%s: -connect argument malformed or ambiguous\n",
1368 prog);
1369 goto end;
1370 }
1371 }
1372
1373 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1374 BIO_printf(bio_err,
1375 "Can't use unix sockets and datagrams together\n");
1376 goto end;
1377 }
1378
1379 if (split_send_fragment > SSL3_RT_MAX_PLAIN_LENGTH) {
1380 BIO_printf(bio_err, "Bad split send fragment size\n");
1381 goto end;
1382 }
1383
1384 if (max_pipelines > SSL_MAX_PIPELINES) {
1385 BIO_printf(bio_err, "Bad max pipelines value\n");
1386 goto end;
1387 }
1388
1389 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1390 next_proto.status = -1;
1391 if (next_proto_neg_in) {
1392 next_proto.data =
1393 next_protos_parse(&next_proto.len, next_proto_neg_in);
1394 if (next_proto.data == NULL) {
1395 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1396 goto end;
1397 }
1398 } else
1399 next_proto.data = NULL;
1400 #endif
1401
1402 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1403 BIO_printf(bio_err, "Error getting password\n");
1404 goto end;
1405 }
1406
1407 if (key_file == NULL)
1408 key_file = cert_file;
1409
1410 if (key_file) {
1411 key = load_key(key_file, key_format, 0, pass, e,
1412 "client certificate private key file");
1413 if (key == NULL) {
1414 ERR_print_errors(bio_err);
1415 goto end;
1416 }
1417 }
1418
1419 if (cert_file) {
1420 cert = load_cert(cert_file, cert_format, "client certificate file");
1421 if (cert == NULL) {
1422 ERR_print_errors(bio_err);
1423 goto end;
1424 }
1425 }
1426
1427 if (chain_file) {
1428 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1429 "client certificate chain"))
1430 goto end;
1431 }
1432
1433 if (crl_file) {
1434 X509_CRL *crl;
1435 crl = load_crl(crl_file, crl_format);
1436 if (crl == NULL) {
1437 BIO_puts(bio_err, "Error loading CRL\n");
1438 ERR_print_errors(bio_err);
1439 goto end;
1440 }
1441 crls = sk_X509_CRL_new_null();
1442 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1443 BIO_puts(bio_err, "Error adding CRL\n");
1444 ERR_print_errors(bio_err);
1445 X509_CRL_free(crl);
1446 goto end;
1447 }
1448 }
1449
1450 if (!load_excert(&exc))
1451 goto end;
1452
1453 if (!app_RAND_load_file(NULL, 1) && inrand == NULL
1454 && !RAND_status()) {
1455 BIO_printf(bio_err,
1456 "warning, not much extra random data, consider using the -rand option\n");
1457 }
1458 if (inrand != NULL) {
1459 randamt = app_RAND_load_files(inrand);
1460 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", randamt);
1461 }
1462
1463 if (bio_c_out == NULL) {
1464 if (c_quiet && !c_debug) {
1465 bio_c_out = BIO_new(BIO_s_null());
1466 if (c_msg && !bio_c_msg)
1467 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1468 } else if (bio_c_out == NULL)
1469 bio_c_out = dup_bio_out(FORMAT_TEXT);
1470 }
1471 #ifndef OPENSSL_NO_SRP
1472 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1473 BIO_printf(bio_err, "Error getting password\n");
1474 goto end;
1475 }
1476 #endif
1477
1478 ctx = SSL_CTX_new(meth);
1479 if (ctx == NULL) {
1480 ERR_print_errors(bio_err);
1481 goto end;
1482 }
1483
1484 if (sdebug)
1485 ssl_ctx_security_debug(ctx, sdebug);
1486
1487 if (ssl_config) {
1488 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1489 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1490 ssl_config);
1491 ERR_print_errors(bio_err);
1492 goto end;
1493 }
1494 }
1495
1496 if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1497 goto end;
1498 if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1499 goto end;
1500
1501 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1502 BIO_printf(bio_err, "Error setting verify params\n");
1503 ERR_print_errors(bio_err);
1504 goto end;
1505 }
1506
1507 if (async) {
1508 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1509 }
1510 if (split_send_fragment > 0) {
1511 SSL_CTX_set_split_send_fragment(ctx, split_send_fragment);
1512 }
1513 if (max_pipelines > 0) {
1514 SSL_CTX_set_max_pipelines(ctx, max_pipelines);
1515 }
1516
1517 if (read_buf_len > 0) {
1518 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1519 }
1520
1521 if (!config_ctx(cctx, ssl_args, ctx))
1522 goto end;
1523
1524 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1525 crls, crl_download)) {
1526 BIO_printf(bio_err, "Error loading store locations\n");
1527 ERR_print_errors(bio_err);
1528 goto end;
1529 }
1530 #ifndef OPENSSL_NO_ENGINE
1531 if (ssl_client_engine) {
1532 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1533 BIO_puts(bio_err, "Error setting client auth engine\n");
1534 ERR_print_errors(bio_err);
1535 ENGINE_free(ssl_client_engine);
1536 goto end;
1537 }
1538 ENGINE_free(ssl_client_engine);
1539 }
1540 #endif
1541
1542 #ifndef OPENSSL_NO_PSK
1543 if (psk_key != NULL) {
1544 if (c_debug)
1545 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1546 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1547 }
1548 #endif
1549 #ifndef OPENSSL_NO_SRTP
1550 if (srtp_profiles != NULL) {
1551 /* Returns 0 on success! */
1552 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1553 BIO_printf(bio_err, "Error setting SRTP profile\n");
1554 ERR_print_errors(bio_err);
1555 goto end;
1556 }
1557 }
1558 #endif
1559
1560 if (exc)
1561 ssl_ctx_set_excert(ctx, exc);
1562
1563 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1564 if (next_proto.data)
1565 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1566 #endif
1567 if (alpn_in) {
1568 size_t alpn_len;
1569 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1570
1571 if (alpn == NULL) {
1572 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1573 goto end;
1574 }
1575 /* Returns 0 on success! */
1576 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1577 BIO_printf(bio_err, "Error setting ALPN\n");
1578 goto end;
1579 }
1580 OPENSSL_free(alpn);
1581 }
1582
1583 for (i = 0; i < serverinfo_count; i++) {
1584 if (!SSL_CTX_add_client_custom_ext(ctx,
1585 serverinfo_types[i],
1586 NULL, NULL, NULL,
1587 serverinfo_cli_parse_cb, NULL)) {
1588 BIO_printf(bio_err,
1589 "Warning: Unable to add custom extension %u, skipping\n",
1590 serverinfo_types[i]);
1591 }
1592 }
1593
1594 if (state)
1595 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1596
1597 #ifndef OPENSSL_NO_CT
1598 /* Enable SCT processing, without early connection termination */
1599 if (ct_validation &&
1600 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1601 ERR_print_errors(bio_err);
1602 goto end;
1603 }
1604
1605 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1606 if (ct_validation) {
1607 ERR_print_errors(bio_err);
1608 goto end;
1609 }
1610
1611 /*
1612 * If CT validation is not enabled, the log list isn't needed so don't
1613 * show errors or abort. We try to load it regardless because then we
1614 * can show the names of the logs any SCTs came from (SCTs may be seen
1615 * even with validation disabled).
1616 */
1617 ERR_clear_error();
1618 }
1619 #endif
1620
1621 SSL_CTX_set_verify(ctx, verify, verify_callback);
1622
1623 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1624 ERR_print_errors(bio_err);
1625 goto end;
1626 }
1627
1628 ssl_ctx_add_crls(ctx, crls, crl_download);
1629
1630 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1631 goto end;
1632
1633 if (servername != NULL) {
1634 tlsextcbp.biodebug = bio_err;
1635 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1636 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1637 }
1638 # ifndef OPENSSL_NO_SRP
1639 if (srp_arg.srplogin) {
1640 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1641 BIO_printf(bio_err, "Unable to set SRP username\n");
1642 goto end;
1643 }
1644 srp_arg.msg = c_msg;
1645 srp_arg.debug = c_debug;
1646 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1647 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1648 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1649 if (c_msg || c_debug || srp_arg.amp == 0)
1650 SSL_CTX_set_srp_verify_param_callback(ctx,
1651 ssl_srp_verify_param_cb);
1652 }
1653 # endif
1654
1655 if (dane_tlsa_domain != NULL) {
1656 if (SSL_CTX_dane_enable(ctx) <= 0) {
1657 BIO_printf(bio_err,
1658 "%s: Error enabling DANE TLSA authentication.\n",
1659 prog);
1660 ERR_print_errors(bio_err);
1661 goto end;
1662 }
1663 }
1664
1665 con = SSL_new(ctx);
1666 if (sess_in) {
1667 SSL_SESSION *sess;
1668 BIO *stmp = BIO_new_file(sess_in, "r");
1669 if (!stmp) {
1670 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1671 ERR_print_errors(bio_err);
1672 goto end;
1673 }
1674 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1675 BIO_free(stmp);
1676 if (!sess) {
1677 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1678 ERR_print_errors(bio_err);
1679 goto end;
1680 }
1681 if (!SSL_set_session(con, sess)) {
1682 BIO_printf(bio_err, "Can't set session\n");
1683 ERR_print_errors(bio_err);
1684 goto end;
1685 }
1686 SSL_SESSION_free(sess);
1687 }
1688
1689 if (fallback_scsv)
1690 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1691
1692 if (servername != NULL) {
1693 if (!SSL_set_tlsext_host_name(con, servername)) {
1694 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1695 ERR_print_errors(bio_err);
1696 goto end;
1697 }
1698 }
1699
1700 if (dane_tlsa_domain != NULL) {
1701 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1702 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1703 "authentication.\n", prog);
1704 ERR_print_errors(bio_err);
1705 goto end;
1706 }
1707 if (dane_tlsa_rrset == NULL) {
1708 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
1709 "least one -dane_tlsa_rrdata option.\n", prog);
1710 goto end;
1711 }
1712 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
1713 BIO_printf(bio_err, "%s: Failed to import any TLSA "
1714 "records.\n", prog);
1715 goto end;
1716 }
1717 if (dane_ee_no_name)
1718 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
1719 } else if (dane_tlsa_rrset != NULL) {
1720 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
1721 "-dane_tlsa_domain option.\n", prog);
1722 goto end;
1723 }
1724
1725 re_start:
1726 if (init_client(&s, host, port, socket_family, socket_type) == 0) {
1727 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
1728 BIO_closesocket(s);
1729 goto end;
1730 }
1731 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
1732
1733 if (c_nbio) {
1734 if (!BIO_socket_nbio(s, 1)) {
1735 ERR_print_errors(bio_err);
1736 goto end;
1737 }
1738 BIO_printf(bio_c_out, "Turned on non blocking io\n");
1739 }
1740 #ifndef OPENSSL_NO_DTLS
1741 if (socket_type == SOCK_DGRAM) {
1742 union BIO_sock_info_u peer_info;
1743
1744 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
1745 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
1746 BIO_printf(bio_err, "memory allocation failure\n");
1747 BIO_closesocket(s);
1748 goto end;
1749 }
1750 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
1751 BIO_printf(bio_err, "getsockname:errno=%d\n",
1752 get_last_socket_error());
1753 BIO_ADDR_free(peer_info.addr);
1754 BIO_closesocket(s);
1755 goto end;
1756 }
1757
1758 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
1759 BIO_ADDR_free(peer_info.addr);
1760 peer_info.addr = NULL;
1761
1762 if (enable_timeouts) {
1763 timeout.tv_sec = 0;
1764 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1765 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1766
1767 timeout.tv_sec = 0;
1768 timeout.tv_usec = DGRAM_SND_TIMEOUT;
1769 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1770 }
1771
1772 if (socket_mtu) {
1773 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
1774 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
1775 DTLS_get_link_min_mtu(con));
1776 BIO_free(sbio);
1777 goto shut;
1778 }
1779 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1780 if (!DTLS_set_link_mtu(con, socket_mtu)) {
1781 BIO_printf(bio_err, "Failed to set MTU\n");
1782 BIO_free(sbio);
1783 goto shut;
1784 }
1785 } else
1786 /* want to do MTU discovery */
1787 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1788 } else
1789 #endif /* OPENSSL_NO_DTLS */
1790 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1791
1792 if (nbio_test) {
1793 BIO *test;
1794
1795 test = BIO_new(BIO_f_nbio_test());
1796 sbio = BIO_push(test, sbio);
1797 }
1798
1799 if (c_debug) {
1800 BIO_set_callback(sbio, bio_dump_callback);
1801 BIO_set_callback_arg(sbio, (char *)bio_c_out);
1802 }
1803 if (c_msg) {
1804 #ifndef OPENSSL_NO_SSL_TRACE
1805 if (c_msg == 2)
1806 SSL_set_msg_callback(con, SSL_trace);
1807 else
1808 #endif
1809 SSL_set_msg_callback(con, msg_cb);
1810 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1811 }
1812
1813 if (c_tlsextdebug) {
1814 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1815 SSL_set_tlsext_debug_arg(con, bio_c_out);
1816 }
1817 #ifndef OPENSSL_NO_OCSP
1818 if (c_status_req) {
1819 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1820 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1821 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1822 }
1823 #endif
1824
1825 SSL_set_bio(con, sbio, sbio);
1826 SSL_set_connect_state(con);
1827
1828 /* ok, lets connect */
1829 if (fileno_stdin() > SSL_get_fd(con))
1830 width = fileno_stdin() + 1;
1831 else
1832 width = SSL_get_fd(con) + 1;
1833
1834 read_tty = 1;
1835 write_tty = 0;
1836 tty_on = 0;
1837 read_ssl = 1;
1838 write_ssl = 1;
1839
1840 cbuf_len = 0;
1841 cbuf_off = 0;
1842 sbuf_len = 0;
1843 sbuf_off = 0;
1844
1845 switch ((PROTOCOL_CHOICE) starttls_proto) {
1846 case PROTO_OFF:
1847 break;
1848 case PROTO_SMTP:
1849 {
1850 /*
1851 * This is an ugly hack that does a lot of assumptions. We do
1852 * have to handle multi-line responses which may come in a single
1853 * packet or not. We therefore have to use BIO_gets() which does
1854 * need a buffering BIO. So during the initial chitchat we do
1855 * push a buffering BIO into the chain that is removed again
1856 * later on to not disturb the rest of the s_client operation.
1857 */
1858 int foundit = 0;
1859 BIO *fbio = BIO_new(BIO_f_buffer());
1860 BIO_push(fbio, sbio);
1861 /* wait for multi-line response to end from SMTP */
1862 do {
1863 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1864 }
1865 while (mbuf_len > 3 && mbuf[3] == '-');
1866 BIO_printf(fbio, "EHLO %s\r\n", ehlo);
1867 (void)BIO_flush(fbio);
1868 /* wait for multi-line response to end EHLO SMTP response */
1869 do {
1870 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1871 if (strstr(mbuf, "STARTTLS"))
1872 foundit = 1;
1873 }
1874 while (mbuf_len > 3 && mbuf[3] == '-');
1875 (void)BIO_flush(fbio);
1876 BIO_pop(fbio);
1877 BIO_free(fbio);
1878 if (!foundit)
1879 BIO_printf(bio_err,
1880 "didn't find starttls in server response,"
1881 " trying anyway...\n");
1882 BIO_printf(sbio, "STARTTLS\r\n");
1883 BIO_read(sbio, sbuf, BUFSIZZ);
1884 }
1885 break;
1886 case PROTO_POP3:
1887 {
1888 BIO_read(sbio, mbuf, BUFSIZZ);
1889 BIO_printf(sbio, "STLS\r\n");
1890 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
1891 if (mbuf_len < 0) {
1892 BIO_printf(bio_err, "BIO_read failed\n");
1893 goto end;
1894 }
1895 }
1896 break;
1897 case PROTO_IMAP:
1898 {
1899 int foundit = 0;
1900 BIO *fbio = BIO_new(BIO_f_buffer());
1901 BIO_push(fbio, sbio);
1902 BIO_gets(fbio, mbuf, BUFSIZZ);
1903 /* STARTTLS command requires CAPABILITY... */
1904 BIO_printf(fbio, ". CAPABILITY\r\n");
1905 (void)BIO_flush(fbio);
1906 /* wait for multi-line CAPABILITY response */
1907 do {
1908 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1909 if (strstr(mbuf, "STARTTLS"))
1910 foundit = 1;
1911 }
1912 while (mbuf_len > 3 && mbuf[0] != '.');
1913 (void)BIO_flush(fbio);
1914 BIO_pop(fbio);
1915 BIO_free(fbio);
1916 if (!foundit)
1917 BIO_printf(bio_err,
1918 "didn't find STARTTLS in server response,"
1919 " trying anyway...\n");
1920 BIO_printf(sbio, ". STARTTLS\r\n");
1921 BIO_read(sbio, sbuf, BUFSIZZ);
1922 }
1923 break;
1924 case PROTO_FTP:
1925 {
1926 BIO *fbio = BIO_new(BIO_f_buffer());
1927 BIO_push(fbio, sbio);
1928 /* wait for multi-line response to end from FTP */
1929 do {
1930 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1931 }
1932 while (mbuf_len > 3 && mbuf[3] == '-');
1933 (void)BIO_flush(fbio);
1934 BIO_pop(fbio);
1935 BIO_free(fbio);
1936 BIO_printf(sbio, "AUTH TLS\r\n");
1937 BIO_read(sbio, sbuf, BUFSIZZ);
1938 }
1939 break;
1940 case PROTO_XMPP:
1941 case PROTO_XMPP_SERVER:
1942 {
1943 int seen = 0;
1944 BIO_printf(sbio, "<stream:stream "
1945 "xmlns:stream='http://etherx.jabber.org/streams' "
1946 "xmlns='jabber:%s' to='%s' version='1.0'>",
1947 starttls_proto == PROTO_XMPP ? "client" : "server",
1948 xmpphost ? xmpphost : host);
1949 seen = BIO_read(sbio, mbuf, BUFSIZZ);
1950 mbuf[seen] = 0;
1951 while (!strstr
1952 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
1953 && !strstr(mbuf,
1954 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
1955 {
1956 seen = BIO_read(sbio, mbuf, BUFSIZZ);
1957
1958 if (seen <= 0)
1959 goto shut;
1960
1961 mbuf[seen] = 0;
1962 }
1963 BIO_printf(sbio,
1964 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
1965 seen = BIO_read(sbio, sbuf, BUFSIZZ);
1966 sbuf[seen] = 0;
1967 if (!strstr(sbuf, "<proceed"))
1968 goto shut;
1969 mbuf[0] = 0;
1970 }
1971 break;
1972 case PROTO_TELNET:
1973 {
1974 static const unsigned char tls_do[] = {
1975 /* IAC DO START_TLS */
1976 255, 253, 46
1977 };
1978 static const unsigned char tls_will[] = {
1979 /* IAC WILL START_TLS */
1980 255, 251, 46
1981 };
1982 static const unsigned char tls_follows[] = {
1983 /* IAC SB START_TLS FOLLOWS IAC SE */
1984 255, 250, 46, 1, 255, 240
1985 };
1986 int bytes;
1987
1988 /* Telnet server should demand we issue START_TLS */
1989 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
1990 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
1991 goto shut;
1992 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
1993 BIO_write(sbio, tls_will, 3);
1994 BIO_write(sbio, tls_follows, 6);
1995 (void)BIO_flush(sbio);
1996 /* Telnet server also sent the FOLLOWS sub-command */
1997 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
1998 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
1999 goto shut;
2000 }
2001 break;
2002 case PROTO_CONNECT:
2003 {
2004 int foundit = 0;
2005 BIO *fbio = BIO_new(BIO_f_buffer());
2006
2007 BIO_push(fbio, sbio);
2008 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr);
2009 (void)BIO_flush(fbio);
2010 /* wait for multi-line response to end CONNECT response */
2011 do {
2012 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2013 if (strstr(mbuf, "200") != NULL
2014 && strstr(mbuf, "established") != NULL)
2015 foundit++;
2016 } while (mbuf_len > 3 && foundit == 0);
2017 (void)BIO_flush(fbio);
2018 BIO_pop(fbio);
2019 BIO_free(fbio);
2020 if (!foundit) {
2021 BIO_printf(bio_err, "%s: HTTP CONNECT failed\n", prog);
2022 goto shut;
2023 }
2024 }
2025 break;
2026 case PROTO_IRC:
2027 {
2028 int numeric;
2029 BIO *fbio = BIO_new(BIO_f_buffer());
2030
2031 BIO_push(fbio, sbio);
2032 BIO_printf(fbio, "STARTTLS\r\n");
2033 (void)BIO_flush(fbio);
2034 width = SSL_get_fd(con) + 1;
2035
2036 do {
2037 numeric = 0;
2038
2039 FD_ZERO(&readfds);
2040 openssl_fdset(SSL_get_fd(con), &readfds);
2041 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2042 timeout.tv_usec = 0;
2043 /*
2044 * If the IRCd doesn't respond within
2045 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2046 * it doesn't support STARTTLS. Many IRCds
2047 * will not give _any_ sort of response to a
2048 * STARTTLS command when it's not supported.
2049 */
2050 if (!BIO_get_buffer_num_lines(fbio)
2051 && !BIO_pending(fbio)
2052 && !BIO_pending(sbio)
2053 && select(width, (void *)&readfds, NULL, NULL,
2054 &timeout) < 1) {
2055 BIO_printf(bio_err,
2056 "Timeout waiting for response (%d seconds).\n",
2057 S_CLIENT_IRC_READ_TIMEOUT);
2058 break;
2059 }
2060
2061 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2062 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2063 break;
2064 /* :example.net 451 STARTTLS :You have not registered */
2065 /* :example.net 421 STARTTLS :Unknown command */
2066 if ((numeric == 451 || numeric == 421)
2067 && strstr(mbuf, "STARTTLS") != NULL) {
2068 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2069 break;
2070 }
2071 if (numeric == 691) {
2072 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2073 ERR_print_errors(bio_err);
2074 break;
2075 }
2076 } while (numeric != 670);
2077
2078 (void)BIO_flush(fbio);
2079 BIO_pop(fbio);
2080 BIO_free(fbio);
2081 if (numeric != 670) {
2082 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2083 ret = 1;
2084 goto shut;
2085 }
2086 }
2087 }
2088
2089 for (;;) {
2090 FD_ZERO(&readfds);
2091 FD_ZERO(&writefds);
2092
2093 if ((SSL_version(con) == DTLS1_VERSION) &&
2094 DTLSv1_get_timeout(con, &timeout))
2095 timeoutp = &timeout;
2096 else
2097 timeoutp = NULL;
2098
2099 if (SSL_in_init(con) && !SSL_total_renegotiations(con)) {
2100 in_init = 1;
2101 tty_on = 0;
2102 } else {
2103 tty_on = 1;
2104 if (in_init) {
2105 in_init = 0;
2106
2107 if (servername != NULL && !SSL_session_reused(con)) {
2108 BIO_printf(bio_c_out,
2109 "Server did %sacknowledge servername extension.\n",
2110 tlsextcbp.ack ? "" : "not ");
2111 }
2112
2113 if (sess_out) {
2114 BIO *stmp = BIO_new_file(sess_out, "w");
2115 if (stmp) {
2116 PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con));
2117 BIO_free(stmp);
2118 } else
2119 BIO_printf(bio_err, "Error writing session file %s\n",
2120 sess_out);
2121 }
2122 if (c_brief) {
2123 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2124 print_ssl_summary(con);
2125 }
2126
2127 print_stuff(bio_c_out, con, full_log);
2128 if (full_log > 0)
2129 full_log--;
2130
2131 if (starttls_proto) {
2132 BIO_write(bio_err, mbuf, mbuf_len);
2133 /* We don't need to know any more */
2134 if (!reconnect)
2135 starttls_proto = PROTO_OFF;
2136 }
2137
2138 if (reconnect) {
2139 reconnect--;
2140 BIO_printf(bio_c_out,
2141 "drop connection and then reconnect\n");
2142 do_ssl_shutdown(con);
2143 SSL_set_connect_state(con);
2144 BIO_closesocket(SSL_get_fd(con));
2145 goto re_start;
2146 }
2147 }
2148 }
2149
2150 ssl_pending = read_ssl && SSL_has_pending(con);
2151
2152 if (!ssl_pending) {
2153 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2154 if (tty_on) {
2155 /*
2156 * Note that select() returns when read _would not block_,
2157 * and EOF satisfies that. To avoid a CPU-hogging loop,
2158 * set the flag so we exit.
2159 */
2160 if (read_tty && !at_eof)
2161 openssl_fdset(fileno_stdin(), &readfds);
2162 #if !defined(OPENSSL_SYS_VMS)
2163 if (write_tty)
2164 openssl_fdset(fileno_stdout(), &writefds);
2165 #endif
2166 }
2167 if (read_ssl)
2168 openssl_fdset(SSL_get_fd(con), &readfds);
2169 if (write_ssl)
2170 openssl_fdset(SSL_get_fd(con), &writefds);
2171 #else
2172 if (!tty_on || !write_tty) {
2173 if (read_ssl)
2174 openssl_fdset(SSL_get_fd(con), &readfds);
2175 if (write_ssl)
2176 openssl_fdset(SSL_get_fd(con), &writefds);
2177 }
2178 #endif
2179
2180 /*
2181 * Note: under VMS with SOCKETSHR the second parameter is
2182 * currently of type (int *) whereas under other systems it is
2183 * (void *) if you don't have a cast it will choke the compiler:
2184 * if you do have a cast then you can either go for (int *) or
2185 * (void *).
2186 */
2187 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2188 /*
2189 * Under Windows/DOS we make the assumption that we can always
2190 * write to the tty: therefore if we need to write to the tty we
2191 * just fall through. Otherwise we timeout the select every
2192 * second and see if there are any keypresses. Note: this is a
2193 * hack, in a proper Windows application we wouldn't do this.
2194 */
2195 i = 0;
2196 if (!write_tty) {
2197 if (read_tty) {
2198 tv.tv_sec = 1;
2199 tv.tv_usec = 0;
2200 i = select(width, (void *)&readfds, (void *)&writefds,
2201 NULL, &tv);
2202 if (!i && (!has_stdin_waiting() || !read_tty))
2203 continue;
2204 } else
2205 i = select(width, (void *)&readfds, (void *)&writefds,
2206 NULL, timeoutp);
2207 }
2208 #else
2209 i = select(width, (void *)&readfds, (void *)&writefds,
2210 NULL, timeoutp);
2211 #endif
2212 if (i < 0) {
2213 BIO_printf(bio_err, "bad select %d\n",
2214 get_last_socket_error());
2215 goto shut;
2216 /* goto end; */
2217 }
2218 }
2219
2220 if ((SSL_version(con) == DTLS1_VERSION)
2221 && DTLSv1_handle_timeout(con) > 0) {
2222 BIO_printf(bio_err, "TIMEOUT occurred\n");
2223 }
2224
2225 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2226 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2227 switch (SSL_get_error(con, k)) {
2228 case SSL_ERROR_NONE:
2229 cbuf_off += k;
2230 cbuf_len -= k;
2231 if (k <= 0)
2232 goto end;
2233 /* we have done a write(con,NULL,0); */
2234 if (cbuf_len <= 0) {
2235 read_tty = 1;
2236 write_ssl = 0;
2237 } else { /* if (cbuf_len > 0) */
2238
2239 read_tty = 0;
2240 write_ssl = 1;
2241 }
2242 break;
2243 case SSL_ERROR_WANT_WRITE:
2244 BIO_printf(bio_c_out, "write W BLOCK\n");
2245 write_ssl = 1;
2246 read_tty = 0;
2247 break;
2248 case SSL_ERROR_WANT_ASYNC:
2249 BIO_printf(bio_c_out, "write A BLOCK\n");
2250 wait_for_async(con);
2251 write_ssl = 1;
2252 read_tty = 0;
2253 break;
2254 case SSL_ERROR_WANT_READ:
2255 BIO_printf(bio_c_out, "write R BLOCK\n");
2256 write_tty = 0;
2257 read_ssl = 1;
2258 write_ssl = 0;
2259 break;
2260 case SSL_ERROR_WANT_X509_LOOKUP:
2261 BIO_printf(bio_c_out, "write X BLOCK\n");
2262 break;
2263 case SSL_ERROR_ZERO_RETURN:
2264 if (cbuf_len != 0) {
2265 BIO_printf(bio_c_out, "shutdown\n");
2266 ret = 0;
2267 goto shut;
2268 } else {
2269 read_tty = 1;
2270 write_ssl = 0;
2271 break;
2272 }
2273
2274 case SSL_ERROR_SYSCALL:
2275 if ((k != 0) || (cbuf_len != 0)) {
2276 BIO_printf(bio_err, "write:errno=%d\n",
2277 get_last_socket_error());
2278 goto shut;
2279 } else {
2280 read_tty = 1;
2281 write_ssl = 0;
2282 }
2283 break;
2284 case SSL_ERROR_WANT_ASYNC_JOB:
2285 /* This shouldn't ever happen in s_client - treat as an error */
2286 case SSL_ERROR_SSL:
2287 ERR_print_errors(bio_err);
2288 goto shut;
2289 }
2290 }
2291 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2292 /* Assume Windows/DOS/BeOS can always write */
2293 else if (!ssl_pending && write_tty)
2294 #else
2295 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2296 #endif
2297 {
2298 #ifdef CHARSET_EBCDIC
2299 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2300 #endif
2301 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2302
2303 if (i <= 0) {
2304 BIO_printf(bio_c_out, "DONE\n");
2305 ret = 0;
2306 goto shut;
2307 /* goto end; */
2308 }
2309
2310 sbuf_len -= i;;
2311 sbuf_off += i;
2312 if (sbuf_len <= 0) {
2313 read_ssl = 1;
2314 write_tty = 0;
2315 }
2316 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2317 #ifdef RENEG
2318 {
2319 static int iiii;
2320 if (++iiii == 52) {
2321 SSL_renegotiate(con);
2322 iiii = 0;
2323 }
2324 }
2325 #endif
2326 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2327
2328 switch (SSL_get_error(con, k)) {
2329 case SSL_ERROR_NONE:
2330 if (k <= 0)
2331 goto end;
2332 sbuf_off = 0;
2333 sbuf_len = k;
2334
2335 read_ssl = 0;
2336 write_tty = 1;
2337 break;
2338 case SSL_ERROR_WANT_ASYNC:
2339 BIO_printf(bio_c_out, "read A BLOCK\n");
2340 wait_for_async(con);
2341 write_tty = 0;
2342 read_ssl = 1;
2343 if ((read_tty == 0) && (write_ssl == 0))
2344 write_ssl = 1;
2345 break;
2346 case SSL_ERROR_WANT_WRITE:
2347 BIO_printf(bio_c_out, "read W BLOCK\n");
2348 write_ssl = 1;
2349 read_tty = 0;
2350 break;
2351 case SSL_ERROR_WANT_READ:
2352 BIO_printf(bio_c_out, "read R BLOCK\n");
2353 write_tty = 0;
2354 read_ssl = 1;
2355 if ((read_tty == 0) && (write_ssl == 0))
2356 write_ssl = 1;
2357 break;
2358 case SSL_ERROR_WANT_X509_LOOKUP:
2359 BIO_printf(bio_c_out, "read X BLOCK\n");
2360 break;
2361 case SSL_ERROR_SYSCALL:
2362 ret = get_last_socket_error();
2363 if (c_brief)
2364 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2365 else
2366 BIO_printf(bio_err, "read:errno=%d\n", ret);
2367 goto shut;
2368 case SSL_ERROR_ZERO_RETURN:
2369 BIO_printf(bio_c_out, "closed\n");
2370 ret = 0;
2371 goto shut;
2372 case SSL_ERROR_WANT_ASYNC_JOB:
2373 /* This shouldn't ever happen in s_client. Treat as an error */
2374 case SSL_ERROR_SSL:
2375 ERR_print_errors(bio_err);
2376 goto shut;
2377 /* break; */
2378 }
2379 }
2380 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2381 #if defined(OPENSSL_SYS_MSDOS)
2382 else if (has_stdin_waiting())
2383 #else
2384 else if (FD_ISSET(fileno_stdin(), &readfds))
2385 #endif
2386 {
2387 if (crlf) {
2388 int j, lf_num;
2389
2390 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
2391 lf_num = 0;
2392 /* both loops are skipped when i <= 0 */
2393 for (j = 0; j < i; j++)
2394 if (cbuf[j] == '\n')
2395 lf_num++;
2396 for (j = i - 1; j >= 0; j--) {
2397 cbuf[j + lf_num] = cbuf[j];
2398 if (cbuf[j] == '\n') {
2399 lf_num--;
2400 i++;
2401 cbuf[j + lf_num] = '\r';
2402 }
2403 }
2404 assert(lf_num == 0);
2405 } else
2406 i = raw_read_stdin(cbuf, BUFSIZZ);
2407 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2408 if (i == 0)
2409 at_eof = 1;
2410 #endif
2411
2412 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
2413 BIO_printf(bio_err, "DONE\n");
2414 ret = 0;
2415 goto shut;
2416 }
2417
2418 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
2419 BIO_printf(bio_err, "RENEGOTIATING\n");
2420 SSL_renegotiate(con);
2421 cbuf_len = 0;
2422 }
2423 #ifndef OPENSSL_NO_HEARTBEATS
2424 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
2425 BIO_printf(bio_err, "HEARTBEATING\n");
2426 SSL_heartbeat(con);
2427 cbuf_len = 0;
2428 }
2429 #endif
2430 else {
2431 cbuf_len = i;
2432 cbuf_off = 0;
2433 #ifdef CHARSET_EBCDIC
2434 ebcdic2ascii(cbuf, cbuf, i);
2435 #endif
2436 }
2437
2438 write_ssl = 1;
2439 read_tty = 0;
2440 }
2441 }
2442
2443 ret = 0;
2444 shut:
2445 if (in_init)
2446 print_stuff(bio_c_out, con, full_log);
2447 do_ssl_shutdown(con);
2448 #if defined(OPENSSL_SYS_WINDOWS)
2449 /*
2450 * Give the socket time to send its last data before we close it.
2451 * No amount of setting SO_LINGER etc on the socket seems to persuade
2452 * Windows to send the data before closing the socket...but sleeping
2453 * for a short time seems to do it (units in ms)
2454 * TODO: Find a better way to do this
2455 */
2456 Sleep(50);
2457 #endif
2458 BIO_closesocket(SSL_get_fd(con));
2459 end:
2460 if (con != NULL) {
2461 if (prexit != 0)
2462 print_stuff(bio_c_out, con, 1);
2463 SSL_free(con);
2464 }
2465 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2466 OPENSSL_free(next_proto.data);
2467 #endif
2468 SSL_CTX_free(ctx);
2469 X509_free(cert);
2470 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2471 EVP_PKEY_free(key);
2472 sk_X509_pop_free(chain, X509_free);
2473 OPENSSL_free(pass);
2474 #ifndef OPENSSL_NO_SRP
2475 OPENSSL_free(srp_arg.srppassin);
2476 #endif
2477 OPENSSL_free(connectstr);
2478 OPENSSL_free(host);
2479 OPENSSL_free(port);
2480 X509_VERIFY_PARAM_free(vpm);
2481 ssl_excert_free(exc);
2482 sk_OPENSSL_STRING_free(ssl_args);
2483 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
2484 SSL_CONF_CTX_free(cctx);
2485 OPENSSL_clear_free(cbuf, BUFSIZZ);
2486 OPENSSL_clear_free(sbuf, BUFSIZZ);
2487 OPENSSL_clear_free(mbuf, BUFSIZZ);
2488 BIO_free(bio_c_out);
2489 bio_c_out = NULL;
2490 BIO_free(bio_c_msg);
2491 bio_c_msg = NULL;
2492 return (ret);
2493 }
2494
2495 static void print_stuff(BIO *bio, SSL *s, int full)
2496 {
2497 X509 *peer = NULL;
2498 char buf[BUFSIZ];
2499 STACK_OF(X509) *sk;
2500 STACK_OF(X509_NAME) *sk2;
2501 const SSL_CIPHER *c;
2502 X509_NAME *xn;
2503 int i;
2504 #ifndef OPENSSL_NO_COMP
2505 const COMP_METHOD *comp, *expansion;
2506 #endif
2507 unsigned char *exportedkeymat;
2508 #ifndef OPENSSL_NO_CT
2509 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
2510 #endif
2511
2512 if (full) {
2513 int got_a_chain = 0;
2514
2515 sk = SSL_get_peer_cert_chain(s);
2516 if (sk != NULL) {
2517 got_a_chain = 1;
2518
2519 BIO_printf(bio, "---\nCertificate chain\n");
2520 for (i = 0; i < sk_X509_num(sk); i++) {
2521 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)),
2522 buf, sizeof buf);
2523 BIO_printf(bio, "%2d s:%s\n", i, buf);
2524 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)),
2525 buf, sizeof buf);
2526 BIO_printf(bio, " i:%s\n", buf);
2527 if (c_showcerts)
2528 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
2529 }
2530 }
2531
2532 BIO_printf(bio, "---\n");
2533 peer = SSL_get_peer_certificate(s);
2534 if (peer != NULL) {
2535 BIO_printf(bio, "Server certificate\n");
2536
2537 /* Redundant if we showed the whole chain */
2538 if (!(c_showcerts && got_a_chain))
2539 PEM_write_bio_X509(bio, peer);
2540 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
2541 BIO_printf(bio, "subject=%s\n", buf);
2542 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
2543 BIO_printf(bio, "issuer=%s\n", buf);
2544 } else
2545 BIO_printf(bio, "no peer certificate available\n");
2546
2547 sk2 = SSL_get_client_CA_list(s);
2548 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
2549 BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
2550 for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
2551 xn = sk_X509_NAME_value(sk2, i);
2552 X509_NAME_oneline(xn, buf, sizeof(buf));
2553 BIO_write(bio, buf, strlen(buf));
2554 BIO_write(bio, "\n", 1);
2555 }
2556 } else {
2557 BIO_printf(bio, "---\nNo client certificate CA names sent\n");
2558 }
2559
2560 ssl_print_sigalgs(bio, s);
2561 ssl_print_tmp_key(bio, s);
2562
2563 #ifndef OPENSSL_NO_CT
2564 /*
2565 * When the SSL session is anonymous, or resumed via an abbreviated
2566 * handshake, no SCTs are provided as part of the handshake. While in
2567 * a resumed session SCTs may be present in the session's certificate,
2568 * no callbacks are invoked to revalidate these, and in any case that
2569 * set of SCTs may be incomplete. Thus it makes little sense to
2570 * attempt to display SCTs from a resumed session's certificate, and of
2571 * course none are associated with an anonymous peer.
2572 */
2573 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
2574 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
2575 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
2576
2577 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
2578 if (sct_count > 0) {
2579 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
2580
2581 BIO_printf(bio, "---\n");
2582 for (i = 0; i < sct_count; ++i) {
2583 SCT *sct = sk_SCT_value(scts, i);
2584
2585 BIO_printf(bio, "SCT validation status: %s\n",
2586 SCT_validation_status_string(sct));
2587 SCT_print(sct, bio, 0, log_store);
2588 if (i < sct_count - 1)
2589 BIO_printf(bio, "\n---\n");
2590 }
2591 BIO_printf(bio, "\n");
2592 }
2593 }
2594 #endif
2595
2596 BIO_printf(bio,
2597 "---\nSSL handshake has read %" PRIu64
2598 " bytes and written %" PRIu64 " bytes\n",
2599 BIO_number_read(SSL_get_rbio(s)),
2600 BIO_number_written(SSL_get_wbio(s)));
2601 }
2602 print_verify_detail(s, bio);
2603 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
2604 c = SSL_get_current_cipher(s);
2605 BIO_printf(bio, "%s, Cipher is %s\n",
2606 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2607 if (peer != NULL) {
2608 EVP_PKEY *pktmp;
2609
2610 pktmp = X509_get0_pubkey(peer);
2611 BIO_printf(bio, "Server public key is %d bit\n",
2612 EVP_PKEY_bits(pktmp));
2613 }
2614 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2615 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2616 #ifndef OPENSSL_NO_COMP
2617 comp = SSL_get_current_compression(s);
2618 expansion = SSL_get_current_expansion(s);
2619 BIO_printf(bio, "Compression: %s\n",
2620 comp ? SSL_COMP_get_name(comp) : "NONE");
2621 BIO_printf(bio, "Expansion: %s\n",
2622 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2623 #endif
2624
2625 #ifdef SSL_DEBUG
2626 {
2627 /* Print out local port of connection: useful for debugging */
2628 int sock;
2629 union BIO_sock_info_u info;
2630
2631 sock = SSL_get_fd(s);
2632 if ((info.addr = BIO_ADDR_new()) != NULL
2633 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
2634 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
2635 ntohs(BIO_ADDR_rawport(info.addr)));
2636 }
2637 BIO_ADDR_free(info.addr);
2638 }
2639 #endif
2640
2641 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2642 if (next_proto.status != -1) {
2643 const unsigned char *proto;
2644 unsigned int proto_len;
2645 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2646 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2647 BIO_write(bio, proto, proto_len);
2648 BIO_write(bio, "\n", 1);
2649 }
2650 #endif
2651 {
2652 const unsigned char *proto;
2653 unsigned int proto_len;
2654 SSL_get0_alpn_selected(s, &proto, &proto_len);
2655 if (proto_len > 0) {
2656 BIO_printf(bio, "ALPN protocol: ");
2657 BIO_write(bio, proto, proto_len);
2658 BIO_write(bio, "\n", 1);
2659 } else
2660 BIO_printf(bio, "No ALPN negotiated\n");
2661 }
2662
2663 #ifndef OPENSSL_NO_SRTP
2664 {
2665 SRTP_PROTECTION_PROFILE *srtp_profile =
2666 SSL_get_selected_srtp_profile(s);
2667
2668 if (srtp_profile)
2669 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
2670 srtp_profile->name);
2671 }
2672 #endif
2673
2674 SSL_SESSION_print(bio, SSL_get_session(s));
2675 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
2676 BIO_printf(bio, "Keying material exporter:\n");
2677 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
2678 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
2679 exportedkeymat = app_malloc(keymatexportlen, "export key");
2680 if (!SSL_export_keying_material(s, exportedkeymat,
2681 keymatexportlen,
2682 keymatexportlabel,
2683 strlen(keymatexportlabel),
2684 NULL, 0, 0)) {
2685 BIO_printf(bio, " Error\n");
2686 } else {
2687 BIO_printf(bio, " Keying material: ");
2688 for (i = 0; i < keymatexportlen; i++)
2689 BIO_printf(bio, "%02X", exportedkeymat[i]);
2690 BIO_printf(bio, "\n");
2691 }
2692 OPENSSL_free(exportedkeymat);
2693 }
2694 BIO_printf(bio, "---\n");
2695 X509_free(peer);
2696 /* flush, or debugging output gets mixed with http response */
2697 (void)BIO_flush(bio);
2698 }
2699
2700 # ifndef OPENSSL_NO_OCSP
2701 static int ocsp_resp_cb(SSL *s, void *arg)
2702 {
2703 const unsigned char *p;
2704 int len;
2705 OCSP_RESPONSE *rsp;
2706 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2707 BIO_puts(arg, "OCSP response: ");
2708 if (!p) {
2709 BIO_puts(arg, "no response sent\n");
2710 return 1;
2711 }
2712 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2713 if (!rsp) {
2714 BIO_puts(arg, "response parse error\n");
2715 BIO_dump_indent(arg, (char *)p, len, 4);
2716 return 0;
2717 }
2718 BIO_puts(arg, "\n======================================\n");
2719 OCSP_RESPONSE_print(arg, rsp, 0);
2720 BIO_puts(arg, "======================================\n");
2721 OCSP_RESPONSE_free(rsp);
2722 return 1;
2723 }
2724 # endif
2725
2726 #endif /* OPENSSL_NO_SOCK */
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