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source: vbox/trunk/src/libs/openssl-1.1.1g/apps/s_client.c@ 84804

Last change on this file since 84804 was 83916, checked in by vboxsync, 5 years ago

openssl-1.1.1g: Applied and adjusted our OpenSSL changes to 1.1.1g. bugref:9719
File size: 114.7 KB
Line 
1/*
2 * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
4 *
5 * Licensed under the OpenSSL license (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11#include "e_os.h"
12#include <ctype.h>
13#include <stdio.h>
14#include <stdlib.h>
15#include <string.h>
16#include <errno.h>
17#include <openssl/e_os2.h>
18
19#ifndef OPENSSL_NO_SOCK
20
21/*
22 * With IPv6, it looks like Digital has mixed up the proper order of
23 * recursive header file inclusion, resulting in the compiler complaining
24 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
25 * needed to have fileno() declared correctly... So let's define u_int
26 */
27#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
28# define __U_INT
29typedef unsigned int u_int;
30#endif
31
32#include "apps.h"
33#include "progs.h"
34#include <openssl/x509.h>
35#include <openssl/ssl.h>
36#include <openssl/err.h>
37#include <openssl/pem.h>
38#include <openssl/rand.h>
39#include <openssl/ocsp.h>
40#include <openssl/bn.h>
41#include <openssl/async.h>
42#ifndef OPENSSL_NO_SRP
43# include <openssl/srp.h>
44#endif
45#ifndef OPENSSL_NO_CT
46# include <openssl/ct.h>
47#endif
48#include "s_apps.h"
49#include "timeouts.h"
50#include "internal/sockets.h"
51
52#if defined(__has_feature)
53# if __has_feature(memory_sanitizer)
54# include <sanitizer/msan_interface.h>
55# endif
56#endif
57
58#undef BUFSIZZ
59#define BUFSIZZ 1024*8
60#define S_CLIENT_IRC_READ_TIMEOUT 8
61
62static char *prog;
63static int c_debug = 0;
64static int c_showcerts = 0;
65static char *keymatexportlabel = NULL;
66static int keymatexportlen = 20;
67static BIO *bio_c_out = NULL;
68static int c_quiet = 0;
69static char *sess_out = NULL;
70static SSL_SESSION *psksess = NULL;
71
72static void print_stuff(BIO *berr, SSL *con, int full);
73#ifndef OPENSSL_NO_OCSP
74static int ocsp_resp_cb(SSL *s, void *arg);
75#endif
76static int ldap_ExtendedResponse_parse(const char *buf, long rem);
77static int is_dNS_name(const char *host);
78
79static int saved_errno;
80
81static void save_errno(void)
82{
83 saved_errno = errno;
84 errno = 0;
85}
86
87static int restore_errno(void)
88{
89 int ret = errno;
90 errno = saved_errno;
91 return ret;
92}
93
94static void do_ssl_shutdown(SSL *ssl)
95{
96 int ret;
97
98 do {
99 /* We only do unidirectional shutdown */
100 ret = SSL_shutdown(ssl);
101 if (ret < 0) {
102 switch (SSL_get_error(ssl, ret)) {
103 case SSL_ERROR_WANT_READ:
104 case SSL_ERROR_WANT_WRITE:
105 case SSL_ERROR_WANT_ASYNC:
106 case SSL_ERROR_WANT_ASYNC_JOB:
107 /* We just do busy waiting. Nothing clever */
108 continue;
109 }
110 ret = 0;
111 }
112 } while (ret < 0);
113}
114
115/* Default PSK identity and key */
116static char *psk_identity = "Client_identity";
117
118#ifndef OPENSSL_NO_PSK
119static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
120 unsigned int max_identity_len,
121 unsigned char *psk,
122 unsigned int max_psk_len)
123{
124 int ret;
125 long key_len;
126 unsigned char *key;
127
128 if (c_debug)
129 BIO_printf(bio_c_out, "psk_client_cb\n");
130 if (!hint) {
131 /* no ServerKeyExchange message */
132 if (c_debug)
133 BIO_printf(bio_c_out,
134 "NULL received PSK identity hint, continuing anyway\n");
135 } else if (c_debug) {
136 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
137 }
138
139 /*
140 * lookup PSK identity and PSK key based on the given identity hint here
141 */
142 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
143 if (ret < 0 || (unsigned int)ret > max_identity_len)
144 goto out_err;
145 if (c_debug)
146 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
147 ret);
148
149 /* convert the PSK key to binary */
150 key = OPENSSL_hexstr2buf(psk_key, &key_len);
151 if (key == NULL) {
152 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
153 psk_key);
154 return 0;
155 }
156 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
157 BIO_printf(bio_err,
158 "psk buffer of callback is too small (%d) for key (%ld)\n",
159 max_psk_len, key_len);
160 OPENSSL_free(key);
161 return 0;
162 }
163
164 memcpy(psk, key, key_len);
165 OPENSSL_free(key);
166
167 if (c_debug)
168 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
169
170 return key_len;
171 out_err:
172 if (c_debug)
173 BIO_printf(bio_err, "Error in PSK client callback\n");
174 return 0;
175}
176#endif
177
178const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
179const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
180
181static int psk_use_session_cb(SSL *s, const EVP_MD *md,
182 const unsigned char **id, size_t *idlen,
183 SSL_SESSION **sess)
184{
185 SSL_SESSION *usesess = NULL;
186 const SSL_CIPHER *cipher = NULL;
187
188 if (psksess != NULL) {
189 SSL_SESSION_up_ref(psksess);
190 usesess = psksess;
191 } else {
192 long key_len;
193 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
194
195 if (key == NULL) {
196 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
197 psk_key);
198 return 0;
199 }
200
201 /* We default to SHA-256 */
202 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
203 if (cipher == NULL) {
204 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
205 OPENSSL_free(key);
206 return 0;
207 }
208
209 usesess = SSL_SESSION_new();
210 if (usesess == NULL
211 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
212 || !SSL_SESSION_set_cipher(usesess, cipher)
213 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
214 OPENSSL_free(key);
215 goto err;
216 }
217 OPENSSL_free(key);
218 }
219
220 cipher = SSL_SESSION_get0_cipher(usesess);
221 if (cipher == NULL)
222 goto err;
223
224 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
225 /* PSK not usable, ignore it */
226 *id = NULL;
227 *idlen = 0;
228 *sess = NULL;
229 SSL_SESSION_free(usesess);
230 } else {
231 *sess = usesess;
232 *id = (unsigned char *)psk_identity;
233 *idlen = strlen(psk_identity);
234 }
235
236 return 1;
237
238 err:
239 SSL_SESSION_free(usesess);
240 return 0;
241}
242
243/* This is a context that we pass to callbacks */
244typedef struct tlsextctx_st {
245 BIO *biodebug;
246 int ack;
247} tlsextctx;
248
249static int ssl_servername_cb(SSL *s, int *ad, void *arg)
250{
251 tlsextctx *p = (tlsextctx *) arg;
252 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
253 if (SSL_get_servername_type(s) != -1)
254 p->ack = !SSL_session_reused(s) && hn != NULL;
255 else
256 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
257
258 return SSL_TLSEXT_ERR_OK;
259}
260
261#ifndef OPENSSL_NO_SRP
262
263/* This is a context that we pass to all callbacks */
264typedef struct srp_arg_st {
265 char *srppassin;
266 char *srplogin;
267 int msg; /* copy from c_msg */
268 int debug; /* copy from c_debug */
269 int amp; /* allow more groups */
270 int strength; /* minimal size for N */
271} SRP_ARG;
272
273# define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
274
275static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
276{
277 BN_CTX *bn_ctx = BN_CTX_new();
278 BIGNUM *p = BN_new();
279 BIGNUM *r = BN_new();
280 int ret =
281 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
282 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
283 p != NULL && BN_rshift1(p, N) &&
284 /* p = (N-1)/2 */
285 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
286 r != NULL &&
287 /* verify g^((N-1)/2) == -1 (mod N) */
288 BN_mod_exp(r, g, p, N, bn_ctx) &&
289 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
290
291 BN_free(r);
292 BN_free(p);
293 BN_CTX_free(bn_ctx);
294 return ret;
295}
296
297/*-
298 * This callback is used here for two purposes:
299 * - extended debugging
300 * - making some primality tests for unknown groups
301 * The callback is only called for a non default group.
302 *
303 * An application does not need the call back at all if
304 * only the standard groups are used. In real life situations,
305 * client and server already share well known groups,
306 * thus there is no need to verify them.
307 * Furthermore, in case that a server actually proposes a group that
308 * is not one of those defined in RFC 5054, it is more appropriate
309 * to add the group to a static list and then compare since
310 * primality tests are rather cpu consuming.
311 */
312
313static int ssl_srp_verify_param_cb(SSL *s, void *arg)
314{
315 SRP_ARG *srp_arg = (SRP_ARG *)arg;
316 BIGNUM *N = NULL, *g = NULL;
317
318 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
319 return 0;
320 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
321 BIO_printf(bio_err, "SRP parameters:\n");
322 BIO_printf(bio_err, "\tN=");
323 BN_print(bio_err, N);
324 BIO_printf(bio_err, "\n\tg=");
325 BN_print(bio_err, g);
326 BIO_printf(bio_err, "\n");
327 }
328
329 if (SRP_check_known_gN_param(g, N))
330 return 1;
331
332 if (srp_arg->amp == 1) {
333 if (srp_arg->debug)
334 BIO_printf(bio_err,
335 "SRP param N and g are not known params, going to check deeper.\n");
336
337 /*
338 * The srp_moregroups is a real debugging feature. Implementors
339 * should rather add the value to the known ones. The minimal size
340 * has already been tested.
341 */
342 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
343 return 1;
344 }
345 BIO_printf(bio_err, "SRP param N and g rejected.\n");
346 return 0;
347}
348
349# define PWD_STRLEN 1024
350
351static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
352{
353 SRP_ARG *srp_arg = (SRP_ARG *)arg;
354 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
355 PW_CB_DATA cb_tmp;
356 int l;
357
358 cb_tmp.password = (char *)srp_arg->srppassin;
359 cb_tmp.prompt_info = "SRP user";
360 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
361 BIO_printf(bio_err, "Can't read Password\n");
362 OPENSSL_free(pass);
363 return NULL;
364 }
365 *(pass + l) = '\0';
366
367 return pass;
368}
369
370#endif
371
372#ifndef OPENSSL_NO_NEXTPROTONEG
373/* This the context that we pass to next_proto_cb */
374typedef struct tlsextnextprotoctx_st {
375 unsigned char *data;
376 size_t len;
377 int status;
378} tlsextnextprotoctx;
379
380static tlsextnextprotoctx next_proto;
381
382static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
383 const unsigned char *in, unsigned int inlen,
384 void *arg)
385{
386 tlsextnextprotoctx *ctx = arg;
387
388 if (!c_quiet) {
389 /* We can assume that |in| is syntactically valid. */
390 unsigned i;
391 BIO_printf(bio_c_out, "Protocols advertised by server: ");
392 for (i = 0; i < inlen;) {
393 if (i)
394 BIO_write(bio_c_out, ", ", 2);
395 BIO_write(bio_c_out, &in[i + 1], in[i]);
396 i += in[i] + 1;
397 }
398 BIO_write(bio_c_out, "\n", 1);
399 }
400
401 ctx->status =
402 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
403 return SSL_TLSEXT_ERR_OK;
404}
405#endif /* ndef OPENSSL_NO_NEXTPROTONEG */
406
407static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
408 const unsigned char *in, size_t inlen,
409 int *al, void *arg)
410{
411 char pem_name[100];
412 unsigned char ext_buf[4 + 65536];
413
414 /* Reconstruct the type/len fields prior to extension data */
415 inlen &= 0xffff; /* for formal memcmpy correctness */
416 ext_buf[0] = (unsigned char)(ext_type >> 8);
417 ext_buf[1] = (unsigned char)(ext_type);
418 ext_buf[2] = (unsigned char)(inlen >> 8);
419 ext_buf[3] = (unsigned char)(inlen);
420 memcpy(ext_buf + 4, in, inlen);
421
422 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
423 ext_type);
424 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
425 return 1;
426}
427
428/*
429 * Hex decoder that tolerates optional whitespace. Returns number of bytes
430 * produced, advances inptr to end of input string.
431 */
432static ossl_ssize_t hexdecode(const char **inptr, void *result)
433{
434 unsigned char **out = (unsigned char **)result;
435 const char *in = *inptr;
436 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
437 unsigned char *cp = ret;
438 uint8_t byte;
439 int nibble = 0;
440
441 if (ret == NULL)
442 return -1;
443
444 for (byte = 0; *in; ++in) {
445 int x;
446
447 if (isspace(_UC(*in)))
448 continue;
449 x = OPENSSL_hexchar2int(*in);
450 if (x < 0) {
451 OPENSSL_free(ret);
452 return 0;
453 }
454 byte |= (char)x;
455 if ((nibble ^= 1) == 0) {
456 *cp++ = byte;
457 byte = 0;
458 } else {
459 byte <<= 4;
460 }
461 }
462 if (nibble != 0) {
463 OPENSSL_free(ret);
464 return 0;
465 }
466 *inptr = in;
467
468 return cp - (*out = ret);
469}
470
471/*
472 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
473 * inptr to next field skipping leading whitespace.
474 */
475static ossl_ssize_t checked_uint8(const char **inptr, void *out)
476{
477 uint8_t *result = (uint8_t *)out;
478 const char *in = *inptr;
479 char *endp;
480 long v;
481 int e;
482
483 save_errno();
484 v = strtol(in, &endp, 10);
485 e = restore_errno();
486
487 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
488 endp == in || !isspace(_UC(*endp)) ||
489 v != (*result = (uint8_t) v)) {
490 return -1;
491 }
492 for (in = endp; isspace(_UC(*in)); ++in)
493 continue;
494
495 *inptr = in;
496 return 1;
497}
498
499struct tlsa_field {
500 void *var;
501 const char *name;
502 ossl_ssize_t (*parser)(const char **, void *);
503};
504
505static int tlsa_import_rr(SSL *con, const char *rrdata)
506{
507 /* Not necessary to re-init these values; the "parsers" do that. */
508 static uint8_t usage;
509 static uint8_t selector;
510 static uint8_t mtype;
511 static unsigned char *data;
512 static struct tlsa_field tlsa_fields[] = {
513 { &usage, "usage", checked_uint8 },
514 { &selector, "selector", checked_uint8 },
515 { &mtype, "mtype", checked_uint8 },
516 { &data, "data", hexdecode },
517 { NULL, }
518 };
519 struct tlsa_field *f;
520 int ret;
521 const char *cp = rrdata;
522 ossl_ssize_t len = 0;
523
524 for (f = tlsa_fields; f->var; ++f) {
525 /* Returns number of bytes produced, advances cp to next field */
526 if ((len = f->parser(&cp, f->var)) <= 0) {
527 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
528 prog, f->name, rrdata);
529 return 0;
530 }
531 }
532 /* The data field is last, so len is its length */
533 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
534 OPENSSL_free(data);
535
536 if (ret == 0) {
537 ERR_print_errors(bio_err);
538 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
539 prog, rrdata);
540 return 0;
541 }
542 if (ret < 0) {
543 ERR_print_errors(bio_err);
544 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
545 prog, rrdata);
546 return 0;
547 }
548 return ret;
549}
550
551static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
552{
553 int num = sk_OPENSSL_STRING_num(rrset);
554 int count = 0;
555 int i;
556
557 for (i = 0; i < num; ++i) {
558 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
559 if (tlsa_import_rr(con, rrdata) > 0)
560 ++count;
561 }
562 return count > 0;
563}
564
565typedef enum OPTION_choice {
566 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
567 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
568 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
569 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
570 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
571 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
572 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
573 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
574 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
575 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
576 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
577#ifndef OPENSSL_NO_SRP
578 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
579 OPT_SRP_MOREGROUPS,
580#endif
581 OPT_SSL3, OPT_SSL_CONFIG,
582 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
583 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
584 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
585 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
586 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
587 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
588 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
589 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
590 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
591 OPT_V_ENUM,
592 OPT_X_ENUM,
593 OPT_S_ENUM,
594 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
595#ifndef OPENSSL_NO_CT
596 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
597#endif
598 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
599 OPT_ENABLE_PHA,
600 OPT_SCTP_LABEL_BUG,
601 OPT_R_ENUM
602} OPTION_CHOICE;
603
604const OPTIONS s_client_options[] = {
605 {"help", OPT_HELP, '-', "Display this summary"},
606 {"host", OPT_HOST, 's', "Use -connect instead"},
607 {"port", OPT_PORT, 'p', "Use -connect instead"},
608 {"connect", OPT_CONNECT, 's',
609 "TCP/IP where to connect (default is :" PORT ")"},
610 {"bind", OPT_BIND, 's', "bind local address for connection"},
611 {"proxy", OPT_PROXY, 's',
612 "Connect to via specified proxy to the real server"},
613#ifdef AF_UNIX
614 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
615#endif
616 {"4", OPT_4, '-', "Use IPv4 only"},
617#ifdef AF_INET6
618 {"6", OPT_6, '-', "Use IPv6 only"},
619#endif
620 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
621 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
622 {"certform", OPT_CERTFORM, 'F',
623 "Certificate format (PEM or DER) PEM default"},
624 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
625 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
626 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
627 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
628 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
629 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
630 {"no-CAfile", OPT_NOCAFILE, '-',
631 "Do not load the default certificates file"},
632 {"no-CApath", OPT_NOCAPATH, '-',
633 "Do not load certificates from the default certificates directory"},
634 {"requestCAfile", OPT_REQCAFILE, '<',
635 "PEM format file of CA names to send to the server"},
636 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
637 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
638 "DANE TLSA rrdata presentation form"},
639 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
640 "Disable name checks when matching DANE-EE(3) TLSA records"},
641 {"reconnect", OPT_RECONNECT, '-',
642 "Drop and re-make the connection with the same Session-ID"},
643 {"showcerts", OPT_SHOWCERTS, '-',
644 "Show all certificates sent by the server"},
645 {"debug", OPT_DEBUG, '-', "Extra output"},
646 {"msg", OPT_MSG, '-', "Show protocol messages"},
647 {"msgfile", OPT_MSGFILE, '>',
648 "File to send output of -msg or -trace, instead of stdout"},
649 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
650 {"state", OPT_STATE, '-', "Print the ssl states"},
651 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
652 {"quiet", OPT_QUIET, '-', "No s_client output"},
653 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
654 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
655 {"starttls", OPT_STARTTLS, 's',
656 "Use the appropriate STARTTLS command before starting TLS"},
657 {"xmpphost", OPT_XMPPHOST, 's',
658 "Alias of -name option for \"-starttls xmpp[-server]\""},
659 OPT_R_OPTIONS,
660 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
661 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
662#ifndef OPENSSL_NO_SRTP
663 {"use_srtp", OPT_USE_SRTP, 's',
664 "Offer SRTP key management with a colon-separated profile list"},
665#endif
666 {"keymatexport", OPT_KEYMATEXPORT, 's',
667 "Export keying material using label"},
668 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
669 "Export len bytes of keying material (default 20)"},
670 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
671 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
672 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
673 {"name", OPT_PROTOHOST, 's',
674 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
675 {"CRL", OPT_CRL, '<', "CRL file to use"},
676 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
677 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
678 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
679 "Close connection on verification error"},
680 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
681 {"brief", OPT_BRIEF, '-',
682 "Restrict output to brief summary of connection parameters"},
683 {"prexit", OPT_PREXIT, '-',
684 "Print session information when the program exits"},
685 {"security_debug", OPT_SECURITY_DEBUG, '-',
686 "Enable security debug messages"},
687 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
688 "Output more security debug output"},
689 {"cert_chain", OPT_CERT_CHAIN, '<',
690 "Certificate chain file (in PEM format)"},
691 {"chainCApath", OPT_CHAINCAPATH, '/',
692 "Use dir as certificate store path to build CA certificate chain"},
693 {"verifyCApath", OPT_VERIFYCAPATH, '/',
694 "Use dir as certificate store path to verify CA certificate"},
695 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
696 {"chainCAfile", OPT_CHAINCAFILE, '<',
697 "CA file for certificate chain (PEM format)"},
698 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
699 "CA file for certificate verification (PEM format)"},
700 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
701 {"servername", OPT_SERVERNAME, 's',
702 "Set TLS extension servername (SNI) in ClientHello (default)"},
703 {"noservername", OPT_NOSERVERNAME, '-',
704 "Do not send the server name (SNI) extension in the ClientHello"},
705 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
706 "Hex dump of all TLS extensions received"},
707#ifndef OPENSSL_NO_OCSP
708 {"status", OPT_STATUS, '-', "Request certificate status from server"},
709#endif
710 {"serverinfo", OPT_SERVERINFO, 's',
711 "types Send empty ClientHello extensions (comma-separated numbers)"},
712 {"alpn", OPT_ALPN, 's',
713 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
714 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
715 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
716 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
717 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
718 "Size used to split data for encrypt pipelines"},
719 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
720 "Maximum number of encrypt/decrypt pipelines to be used"},
721 {"read_buf", OPT_READ_BUF, 'p',
722 "Default read buffer size to be used for connections"},
723 OPT_S_OPTIONS,
724 OPT_V_OPTIONS,
725 OPT_X_OPTIONS,
726#ifndef OPENSSL_NO_SSL3
727 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
728#endif
729#ifndef OPENSSL_NO_TLS1
730 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
731#endif
732#ifndef OPENSSL_NO_TLS1_1
733 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
734#endif
735#ifndef OPENSSL_NO_TLS1_2
736 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
737#endif
738#ifndef OPENSSL_NO_TLS1_3
739 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
740#endif
741#ifndef OPENSSL_NO_DTLS
742 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
743 {"timeout", OPT_TIMEOUT, '-',
744 "Enable send/receive timeout on DTLS connections"},
745 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
746#endif
747#ifndef OPENSSL_NO_DTLS1
748 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
749#endif
750#ifndef OPENSSL_NO_DTLS1_2
751 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
752#endif
753#ifndef OPENSSL_NO_SCTP
754 {"sctp", OPT_SCTP, '-', "Use SCTP"},
755 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
756#endif
757#ifndef OPENSSL_NO_SSL_TRACE
758 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
759#endif
760#ifdef WATT32
761 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
762#endif
763 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
764 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
765 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
766 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
767#ifndef OPENSSL_NO_SRP
768 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
769 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
770 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
771 "SRP username into second ClientHello message"},
772 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
773 "Tolerate other than the known g N values."},
774 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
775#endif
776#ifndef OPENSSL_NO_NEXTPROTONEG
777 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
778 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
779#endif
780#ifndef OPENSSL_NO_ENGINE
781 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
782 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
783 "Specify engine to be used for client certificate operations"},
784#endif
785#ifndef OPENSSL_NO_CT
786 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
787 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
788 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
789#endif
790 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
791 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
792 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
793 {NULL, OPT_EOF, 0x00, NULL}
794};
795
796typedef enum PROTOCOL_choice {
797 PROTO_OFF,
798 PROTO_SMTP,
799 PROTO_POP3,
800 PROTO_IMAP,
801 PROTO_FTP,
802 PROTO_TELNET,
803 PROTO_XMPP,
804 PROTO_XMPP_SERVER,
805 PROTO_CONNECT,
806 PROTO_IRC,
807 PROTO_MYSQL,
808 PROTO_POSTGRES,
809 PROTO_LMTP,
810 PROTO_NNTP,
811 PROTO_SIEVE,
812 PROTO_LDAP
813} PROTOCOL_CHOICE;
814
815static const OPT_PAIR services[] = {
816 {"smtp", PROTO_SMTP},
817 {"pop3", PROTO_POP3},
818 {"imap", PROTO_IMAP},
819 {"ftp", PROTO_FTP},
820 {"xmpp", PROTO_XMPP},
821 {"xmpp-server", PROTO_XMPP_SERVER},
822 {"telnet", PROTO_TELNET},
823 {"irc", PROTO_IRC},
824 {"mysql", PROTO_MYSQL},
825 {"postgres", PROTO_POSTGRES},
826 {"lmtp", PROTO_LMTP},
827 {"nntp", PROTO_NNTP},
828 {"sieve", PROTO_SIEVE},
829 {"ldap", PROTO_LDAP},
830 {NULL, 0}
831};
832
833#define IS_INET_FLAG(o) \
834 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
835#define IS_UNIX_FLAG(o) (o == OPT_UNIX)
836
837#define IS_PROT_FLAG(o) \
838 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
839 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
840
841/* Free |*dest| and optionally set it to a copy of |source|. */
842static void freeandcopy(char **dest, const char *source)
843{
844 OPENSSL_free(*dest);
845 *dest = NULL;
846 if (source != NULL)
847 *dest = OPENSSL_strdup(source);
848}
849
850static int new_session_cb(SSL *s, SSL_SESSION *sess)
851{
852
853 if (sess_out != NULL) {
854 BIO *stmp = BIO_new_file(sess_out, "w");
855
856 if (stmp == NULL) {
857 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
858 } else {
859 PEM_write_bio_SSL_SESSION(stmp, sess);
860 BIO_free(stmp);
861 }
862 }
863
864 /*
865 * Session data gets dumped on connection for TLSv1.2 and below, and on
866 * arrival of the NewSessionTicket for TLSv1.3.
867 */
868 if (SSL_version(s) == TLS1_3_VERSION) {
869 BIO_printf(bio_c_out,
870 "---\nPost-Handshake New Session Ticket arrived:\n");
871 SSL_SESSION_print(bio_c_out, sess);
872 BIO_printf(bio_c_out, "---\n");
873 }
874
875 /*
876 * We always return a "fail" response so that the session gets freed again
877 * because we haven't used the reference.
878 */
879 return 0;
880}
881
882int s_client_main(int argc, char **argv)
883{
884 BIO *sbio;
885 EVP_PKEY *key = NULL;
886 SSL *con = NULL;
887 SSL_CTX *ctx = NULL;
888 STACK_OF(X509) *chain = NULL;
889 X509 *cert = NULL;
890 X509_VERIFY_PARAM *vpm = NULL;
891 SSL_EXCERT *exc = NULL;
892 SSL_CONF_CTX *cctx = NULL;
893 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
894 char *dane_tlsa_domain = NULL;
895 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
896 int dane_ee_no_name = 0;
897 STACK_OF(X509_CRL) *crls = NULL;
898 const SSL_METHOD *meth = TLS_client_method();
899 const char *CApath = NULL, *CAfile = NULL;
900 char *cbuf = NULL, *sbuf = NULL;
901 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL, *bindstr = NULL;
902 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
903 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
904 char *port = OPENSSL_strdup(PORT);
905 char *bindhost = NULL, *bindport = NULL;
906 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
907 char *ReqCAfile = NULL;
908 char *sess_in = NULL, *crl_file = NULL, *p;
909 const char *protohost = NULL;
910 struct timeval timeout, *timeoutp;
911 fd_set readfds, writefds;
912 int noCApath = 0, noCAfile = 0;
913 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
914 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
915 int prexit = 0;
916 int sdebug = 0;
917 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
918 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
919 int sbuf_len, sbuf_off, cmdletters = 1;
920 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
921 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
922 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
923#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
924 int at_eof = 0;
925#endif
926 int read_buf_len = 0;
927 int fallback_scsv = 0;
928 OPTION_CHOICE o;
929#ifndef OPENSSL_NO_DTLS
930 int enable_timeouts = 0;
931 long socket_mtu = 0;
932#endif
933#ifndef OPENSSL_NO_ENGINE
934 ENGINE *ssl_client_engine = NULL;
935#endif
936 ENGINE *e = NULL;
937#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
938 struct timeval tv;
939#endif
940 const char *servername = NULL;
941 int noservername = 0;
942 const char *alpn_in = NULL;
943 tlsextctx tlsextcbp = { NULL, 0 };
944 const char *ssl_config = NULL;
945#define MAX_SI_TYPES 100
946 unsigned short serverinfo_types[MAX_SI_TYPES];
947 int serverinfo_count = 0, start = 0, len;
948#ifndef OPENSSL_NO_NEXTPROTONEG
949 const char *next_proto_neg_in = NULL;
950#endif
951#ifndef OPENSSL_NO_SRP
952 char *srppass = NULL;
953 int srp_lateuser = 0;
954 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
955#endif
956#ifndef OPENSSL_NO_SRTP
957 char *srtp_profiles = NULL;
958#endif
959#ifndef OPENSSL_NO_CT
960 char *ctlog_file = NULL;
961 int ct_validation = 0;
962#endif
963 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
964 int async = 0;
965 unsigned int max_send_fragment = 0;
966 unsigned int split_send_fragment = 0, max_pipelines = 0;
967 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
968 int count4or6 = 0;
969 uint8_t maxfraglen = 0;
970 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
971 int c_tlsextdebug = 0;
972#ifndef OPENSSL_NO_OCSP
973 int c_status_req = 0;
974#endif
975 BIO *bio_c_msg = NULL;
976 const char *keylog_file = NULL, *early_data_file = NULL;
977#ifndef OPENSSL_NO_DTLS
978 int isdtls = 0;
979#endif
980 char *psksessf = NULL;
981 int enable_pha = 0;
982#ifndef OPENSSL_NO_SCTP
983 int sctp_label_bug = 0;
984#endif
985
986 FD_ZERO(&readfds);
987 FD_ZERO(&writefds);
988/* Known false-positive of MemorySanitizer. */
989#if defined(__has_feature)
990# if __has_feature(memory_sanitizer)
991 __msan_unpoison(&readfds, sizeof(readfds));
992 __msan_unpoison(&writefds, sizeof(writefds));
993# endif
994#endif
995
996 prog = opt_progname(argv[0]);
997 c_quiet = 0;
998 c_debug = 0;
999 c_showcerts = 0;
1000 c_nbio = 0;
1001 vpm = X509_VERIFY_PARAM_new();
1002 cctx = SSL_CONF_CTX_new();
1003
1004 if (vpm == NULL || cctx == NULL) {
1005 BIO_printf(bio_err, "%s: out of memory\n", prog);
1006 goto end;
1007 }
1008
1009 cbuf = app_malloc(BUFSIZZ, "cbuf");
1010 sbuf = app_malloc(BUFSIZZ, "sbuf");
1011 mbuf = app_malloc(BUFSIZZ, "mbuf");
1012
1013 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
1014
1015 prog = opt_init(argc, argv, s_client_options);
1016 while ((o = opt_next()) != OPT_EOF) {
1017 /* Check for intermixing flags. */
1018 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1019 BIO_printf(bio_err,
1020 "%s: Intermixed protocol flags (unix and internet domains)\n",
1021 prog);
1022 goto end;
1023 }
1024 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1025 BIO_printf(bio_err,
1026 "%s: Intermixed protocol flags (internet and unix domains)\n",
1027 prog);
1028 goto end;
1029 }
1030
1031 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1032 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1033 goto end;
1034 }
1035 if (IS_NO_PROT_FLAG(o))
1036 no_prot_opt++;
1037 if (prot_opt == 1 && no_prot_opt) {
1038 BIO_printf(bio_err,
1039 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1040 goto end;
1041 }
1042
1043 switch (o) {
1044 case OPT_EOF:
1045 case OPT_ERR:
1046 opthelp:
1047 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1048 goto end;
1049 case OPT_HELP:
1050 opt_help(s_client_options);
1051 ret = 0;
1052 goto end;
1053 case OPT_4:
1054 connect_type = use_inet;
1055 socket_family = AF_INET;
1056 count4or6++;
1057 break;
1058#ifdef AF_INET6
1059 case OPT_6:
1060 connect_type = use_inet;
1061 socket_family = AF_INET6;
1062 count4or6++;
1063 break;
1064#endif
1065 case OPT_HOST:
1066 connect_type = use_inet;
1067 freeandcopy(&host, opt_arg());
1068 break;
1069 case OPT_PORT:
1070 connect_type = use_inet;
1071 freeandcopy(&port, opt_arg());
1072 break;
1073 case OPT_CONNECT:
1074 connect_type = use_inet;
1075 freeandcopy(&connectstr, opt_arg());
1076 break;
1077 case OPT_BIND:
1078 freeandcopy(&bindstr, opt_arg());
1079 break;
1080 case OPT_PROXY:
1081 proxystr = opt_arg();
1082 starttls_proto = PROTO_CONNECT;
1083 break;
1084#ifdef AF_UNIX
1085 case OPT_UNIX:
1086 connect_type = use_unix;
1087 socket_family = AF_UNIX;
1088 freeandcopy(&host, opt_arg());
1089 break;
1090#endif
1091 case OPT_XMPPHOST:
1092 /* fall through, since this is an alias */
1093 case OPT_PROTOHOST:
1094 protohost = opt_arg();
1095 break;
1096 case OPT_VERIFY:
1097 verify = SSL_VERIFY_PEER;
1098 verify_args.depth = atoi(opt_arg());
1099 if (!c_quiet)
1100 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1101 break;
1102 case OPT_CERT:
1103 cert_file = opt_arg();
1104 break;
1105 case OPT_NAMEOPT:
1106 if (!set_nameopt(opt_arg()))
1107 goto end;
1108 break;
1109 case OPT_CRL:
1110 crl_file = opt_arg();
1111 break;
1112 case OPT_CRL_DOWNLOAD:
1113 crl_download = 1;
1114 break;
1115 case OPT_SESS_OUT:
1116 sess_out = opt_arg();
1117 break;
1118 case OPT_SESS_IN:
1119 sess_in = opt_arg();
1120 break;
1121 case OPT_CERTFORM:
1122 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1123 goto opthelp;
1124 break;
1125 case OPT_CRLFORM:
1126 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1127 goto opthelp;
1128 break;
1129 case OPT_VERIFY_RET_ERROR:
1130 verify = SSL_VERIFY_PEER;
1131 verify_args.return_error = 1;
1132 break;
1133 case OPT_VERIFY_QUIET:
1134 verify_args.quiet = 1;
1135 break;
1136 case OPT_BRIEF:
1137 c_brief = verify_args.quiet = c_quiet = 1;
1138 break;
1139 case OPT_S_CASES:
1140 if (ssl_args == NULL)
1141 ssl_args = sk_OPENSSL_STRING_new_null();
1142 if (ssl_args == NULL
1143 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1144 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1145 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1146 goto end;
1147 }
1148 break;
1149 case OPT_V_CASES:
1150 if (!opt_verify(o, vpm))
1151 goto end;
1152 vpmtouched++;
1153 break;
1154 case OPT_X_CASES:
1155 if (!args_excert(o, &exc))
1156 goto end;
1157 break;
1158 case OPT_PREXIT:
1159 prexit = 1;
1160 break;
1161 case OPT_CRLF:
1162 crlf = 1;
1163 break;
1164 case OPT_QUIET:
1165 c_quiet = c_ign_eof = 1;
1166 break;
1167 case OPT_NBIO:
1168 c_nbio = 1;
1169 break;
1170 case OPT_NOCMDS:
1171 cmdletters = 0;
1172 break;
1173 case OPT_ENGINE:
1174 e = setup_engine(opt_arg(), 1);
1175 break;
1176 case OPT_SSL_CLIENT_ENGINE:
1177#ifndef OPENSSL_NO_ENGINE
1178 ssl_client_engine = ENGINE_by_id(opt_arg());
1179 if (ssl_client_engine == NULL) {
1180 BIO_printf(bio_err, "Error getting client auth engine\n");
1181 goto opthelp;
1182 }
1183#endif
1184 break;
1185 case OPT_R_CASES:
1186 if (!opt_rand(o))
1187 goto end;
1188 break;
1189 case OPT_IGN_EOF:
1190 c_ign_eof = 1;
1191 break;
1192 case OPT_NO_IGN_EOF:
1193 c_ign_eof = 0;
1194 break;
1195 case OPT_DEBUG:
1196 c_debug = 1;
1197 break;
1198 case OPT_TLSEXTDEBUG:
1199 c_tlsextdebug = 1;
1200 break;
1201 case OPT_STATUS:
1202#ifndef OPENSSL_NO_OCSP
1203 c_status_req = 1;
1204#endif
1205 break;
1206 case OPT_WDEBUG:
1207#ifdef WATT32
1208 dbug_init();
1209#endif
1210 break;
1211 case OPT_MSG:
1212 c_msg = 1;
1213 break;
1214 case OPT_MSGFILE:
1215 bio_c_msg = BIO_new_file(opt_arg(), "w");
1216 break;
1217 case OPT_TRACE:
1218#ifndef OPENSSL_NO_SSL_TRACE
1219 c_msg = 2;
1220#endif
1221 break;
1222 case OPT_SECURITY_DEBUG:
1223 sdebug = 1;
1224 break;
1225 case OPT_SECURITY_DEBUG_VERBOSE:
1226 sdebug = 2;
1227 break;
1228 case OPT_SHOWCERTS:
1229 c_showcerts = 1;
1230 break;
1231 case OPT_NBIO_TEST:
1232 nbio_test = 1;
1233 break;
1234 case OPT_STATE:
1235 state = 1;
1236 break;
1237 case OPT_PSK_IDENTITY:
1238 psk_identity = opt_arg();
1239 break;
1240 case OPT_PSK:
1241 for (p = psk_key = opt_arg(); *p; p++) {
1242 if (isxdigit(_UC(*p)))
1243 continue;
1244 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1245 goto end;
1246 }
1247 break;
1248 case OPT_PSK_SESS:
1249 psksessf = opt_arg();
1250 break;
1251#ifndef OPENSSL_NO_SRP
1252 case OPT_SRPUSER:
1253 srp_arg.srplogin = opt_arg();
1254 if (min_version < TLS1_VERSION)
1255 min_version = TLS1_VERSION;
1256 break;
1257 case OPT_SRPPASS:
1258 srppass = opt_arg();
1259 if (min_version < TLS1_VERSION)
1260 min_version = TLS1_VERSION;
1261 break;
1262 case OPT_SRP_STRENGTH:
1263 srp_arg.strength = atoi(opt_arg());
1264 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1265 srp_arg.strength);
1266 if (min_version < TLS1_VERSION)
1267 min_version = TLS1_VERSION;
1268 break;
1269 case OPT_SRP_LATEUSER:
1270 srp_lateuser = 1;
1271 if (min_version < TLS1_VERSION)
1272 min_version = TLS1_VERSION;
1273 break;
1274 case OPT_SRP_MOREGROUPS:
1275 srp_arg.amp = 1;
1276 if (min_version < TLS1_VERSION)
1277 min_version = TLS1_VERSION;
1278 break;
1279#endif
1280 case OPT_SSL_CONFIG:
1281 ssl_config = opt_arg();
1282 break;
1283 case OPT_SSL3:
1284 min_version = SSL3_VERSION;
1285 max_version = SSL3_VERSION;
1286 break;
1287 case OPT_TLS1_3:
1288 min_version = TLS1_3_VERSION;
1289 max_version = TLS1_3_VERSION;
1290 break;
1291 case OPT_TLS1_2:
1292 min_version = TLS1_2_VERSION;
1293 max_version = TLS1_2_VERSION;
1294 break;
1295 case OPT_TLS1_1:
1296 min_version = TLS1_1_VERSION;
1297 max_version = TLS1_1_VERSION;
1298 break;
1299 case OPT_TLS1:
1300 min_version = TLS1_VERSION;
1301 max_version = TLS1_VERSION;
1302 break;
1303 case OPT_DTLS:
1304#ifndef OPENSSL_NO_DTLS
1305 meth = DTLS_client_method();
1306 socket_type = SOCK_DGRAM;
1307 isdtls = 1;
1308#endif
1309 break;
1310 case OPT_DTLS1:
1311#ifndef OPENSSL_NO_DTLS1
1312 meth = DTLS_client_method();
1313 min_version = DTLS1_VERSION;
1314 max_version = DTLS1_VERSION;
1315 socket_type = SOCK_DGRAM;
1316 isdtls = 1;
1317#endif
1318 break;
1319 case OPT_DTLS1_2:
1320#ifndef OPENSSL_NO_DTLS1_2
1321 meth = DTLS_client_method();
1322 min_version = DTLS1_2_VERSION;
1323 max_version = DTLS1_2_VERSION;
1324 socket_type = SOCK_DGRAM;
1325 isdtls = 1;
1326#endif
1327 break;
1328 case OPT_SCTP:
1329#ifndef OPENSSL_NO_SCTP
1330 protocol = IPPROTO_SCTP;
1331#endif
1332 break;
1333 case OPT_SCTP_LABEL_BUG:
1334#ifndef OPENSSL_NO_SCTP
1335 sctp_label_bug = 1;
1336#endif
1337 break;
1338 case OPT_TIMEOUT:
1339#ifndef OPENSSL_NO_DTLS
1340 enable_timeouts = 1;
1341#endif
1342 break;
1343 case OPT_MTU:
1344#ifndef OPENSSL_NO_DTLS
1345 socket_mtu = atol(opt_arg());
1346#endif
1347 break;
1348 case OPT_FALLBACKSCSV:
1349 fallback_scsv = 1;
1350 break;
1351 case OPT_KEYFORM:
1352 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1353 goto opthelp;
1354 break;
1355 case OPT_PASS:
1356 passarg = opt_arg();
1357 break;
1358 case OPT_CERT_CHAIN:
1359 chain_file = opt_arg();
1360 break;
1361 case OPT_KEY:
1362 key_file = opt_arg();
1363 break;
1364 case OPT_RECONNECT:
1365 reconnect = 5;
1366 break;
1367 case OPT_CAPATH:
1368 CApath = opt_arg();
1369 break;
1370 case OPT_NOCAPATH:
1371 noCApath = 1;
1372 break;
1373 case OPT_CHAINCAPATH:
1374 chCApath = opt_arg();
1375 break;
1376 case OPT_VERIFYCAPATH:
1377 vfyCApath = opt_arg();
1378 break;
1379 case OPT_BUILD_CHAIN:
1380 build_chain = 1;
1381 break;
1382 case OPT_REQCAFILE:
1383 ReqCAfile = opt_arg();
1384 break;
1385 case OPT_CAFILE:
1386 CAfile = opt_arg();
1387 break;
1388 case OPT_NOCAFILE:
1389 noCAfile = 1;
1390 break;
1391#ifndef OPENSSL_NO_CT
1392 case OPT_NOCT:
1393 ct_validation = 0;
1394 break;
1395 case OPT_CT:
1396 ct_validation = 1;
1397 break;
1398 case OPT_CTLOG_FILE:
1399 ctlog_file = opt_arg();
1400 break;
1401#endif
1402 case OPT_CHAINCAFILE:
1403 chCAfile = opt_arg();
1404 break;
1405 case OPT_VERIFYCAFILE:
1406 vfyCAfile = opt_arg();
1407 break;
1408 case OPT_DANE_TLSA_DOMAIN:
1409 dane_tlsa_domain = opt_arg();
1410 break;
1411 case OPT_DANE_TLSA_RRDATA:
1412 if (dane_tlsa_rrset == NULL)
1413 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1414 if (dane_tlsa_rrset == NULL ||
1415 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1416 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1417 goto end;
1418 }
1419 break;
1420 case OPT_DANE_EE_NO_NAME:
1421 dane_ee_no_name = 1;
1422 break;
1423 case OPT_NEXTPROTONEG:
1424#ifndef OPENSSL_NO_NEXTPROTONEG
1425 next_proto_neg_in = opt_arg();
1426#endif
1427 break;
1428 case OPT_ALPN:
1429 alpn_in = opt_arg();
1430 break;
1431 case OPT_SERVERINFO:
1432 p = opt_arg();
1433 len = strlen(p);
1434 for (start = 0, i = 0; i <= len; ++i) {
1435 if (i == len || p[i] == ',') {
1436 serverinfo_types[serverinfo_count] = atoi(p + start);
1437 if (++serverinfo_count == MAX_SI_TYPES)
1438 break;
1439 start = i + 1;
1440 }
1441 }
1442 break;
1443 case OPT_STARTTLS:
1444 if (!opt_pair(opt_arg(), services, &starttls_proto))
1445 goto end;
1446 break;
1447 case OPT_SERVERNAME:
1448 servername = opt_arg();
1449 break;
1450 case OPT_NOSERVERNAME:
1451 noservername = 1;
1452 break;
1453 case OPT_USE_SRTP:
1454#ifndef OPENSSL_NO_SRTP
1455 srtp_profiles = opt_arg();
1456#endif
1457 break;
1458 case OPT_KEYMATEXPORT:
1459 keymatexportlabel = opt_arg();
1460 break;
1461 case OPT_KEYMATEXPORTLEN:
1462 keymatexportlen = atoi(opt_arg());
1463 break;
1464 case OPT_ASYNC:
1465 async = 1;
1466 break;
1467 case OPT_MAXFRAGLEN:
1468 len = atoi(opt_arg());
1469 switch (len) {
1470 case 512:
1471 maxfraglen = TLSEXT_max_fragment_length_512;
1472 break;
1473 case 1024:
1474 maxfraglen = TLSEXT_max_fragment_length_1024;
1475 break;
1476 case 2048:
1477 maxfraglen = TLSEXT_max_fragment_length_2048;
1478 break;
1479 case 4096:
1480 maxfraglen = TLSEXT_max_fragment_length_4096;
1481 break;
1482 default:
1483 BIO_printf(bio_err,
1484 "%s: Max Fragment Len %u is out of permitted values",
1485 prog, len);
1486 goto opthelp;
1487 }
1488 break;
1489 case OPT_MAX_SEND_FRAG:
1490 max_send_fragment = atoi(opt_arg());
1491 break;
1492 case OPT_SPLIT_SEND_FRAG:
1493 split_send_fragment = atoi(opt_arg());
1494 break;
1495 case OPT_MAX_PIPELINES:
1496 max_pipelines = atoi(opt_arg());
1497 break;
1498 case OPT_READ_BUF:
1499 read_buf_len = atoi(opt_arg());
1500 break;
1501 case OPT_KEYLOG_FILE:
1502 keylog_file = opt_arg();
1503 break;
1504 case OPT_EARLY_DATA:
1505 early_data_file = opt_arg();
1506 break;
1507 case OPT_ENABLE_PHA:
1508 enable_pha = 1;
1509 break;
1510 }
1511 }
1512 if (count4or6 >= 2) {
1513 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1514 goto opthelp;
1515 }
1516 if (noservername) {
1517 if (servername != NULL) {
1518 BIO_printf(bio_err,
1519 "%s: Can't use -servername and -noservername together\n",
1520 prog);
1521 goto opthelp;
1522 }
1523 if (dane_tlsa_domain != NULL) {
1524 BIO_printf(bio_err,
1525 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1526 prog);
1527 goto opthelp;
1528 }
1529 }
1530 argc = opt_num_rest();
1531 if (argc == 1) {
1532 /* If there's a positional argument, it's the equivalent of
1533 * OPT_CONNECT.
1534 * Don't allow -connect and a separate argument.
1535 */
1536 if (connectstr != NULL) {
1537 BIO_printf(bio_err,
1538 "%s: must not provide both -connect option and target parameter\n",
1539 prog);
1540 goto opthelp;
1541 }
1542 connect_type = use_inet;
1543 freeandcopy(&connectstr, *opt_rest());
1544 } else if (argc != 0) {
1545 goto opthelp;
1546 }
1547
1548#ifndef OPENSSL_NO_NEXTPROTONEG
1549 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1550 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1551 goto opthelp;
1552 }
1553#endif
1554 if (proxystr != NULL) {
1555 int res;
1556 char *tmp_host = host, *tmp_port = port;
1557 if (connectstr == NULL) {
1558 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1559 goto opthelp;
1560 }
1561 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1562 if (tmp_host != host)
1563 OPENSSL_free(tmp_host);
1564 if (tmp_port != port)
1565 OPENSSL_free(tmp_port);
1566 if (!res) {
1567 BIO_printf(bio_err,
1568 "%s: -proxy argument malformed or ambiguous\n", prog);
1569 goto end;
1570 }
1571 } else {
1572 int res = 1;
1573 char *tmp_host = host, *tmp_port = port;
1574 if (connectstr != NULL)
1575 res = BIO_parse_hostserv(connectstr, &host, &port,
1576 BIO_PARSE_PRIO_HOST);
1577 if (tmp_host != host)
1578 OPENSSL_free(tmp_host);
1579 if (tmp_port != port)
1580 OPENSSL_free(tmp_port);
1581 if (!res) {
1582 BIO_printf(bio_err,
1583 "%s: -connect argument or target parameter malformed or ambiguous\n",
1584 prog);
1585 goto end;
1586 }
1587 }
1588
1589 if (bindstr != NULL) {
1590 int res;
1591 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1592 BIO_PARSE_PRIO_HOST);
1593 if (!res) {
1594 BIO_printf(bio_err,
1595 "%s: -bind argument parameter malformed or ambiguous\n",
1596 prog);
1597 goto end;
1598 }
1599 }
1600
1601#ifdef AF_UNIX
1602 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1603 BIO_printf(bio_err,
1604 "Can't use unix sockets and datagrams together\n");
1605 goto end;
1606 }
1607#endif
1608
1609#ifndef OPENSSL_NO_SCTP
1610 if (protocol == IPPROTO_SCTP) {
1611 if (socket_type != SOCK_DGRAM) {
1612 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1613 goto end;
1614 }
1615 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1616 socket_type = SOCK_STREAM;
1617 }
1618#endif
1619
1620#if !defined(OPENSSL_NO_NEXTPROTONEG)
1621 next_proto.status = -1;
1622 if (next_proto_neg_in) {
1623 next_proto.data =
1624 next_protos_parse(&next_proto.len, next_proto_neg_in);
1625 if (next_proto.data == NULL) {
1626 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1627 goto end;
1628 }
1629 } else
1630 next_proto.data = NULL;
1631#endif
1632
1633 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1634 BIO_printf(bio_err, "Error getting password\n");
1635 goto end;
1636 }
1637
1638 if (key_file == NULL)
1639 key_file = cert_file;
1640
1641 if (key_file != NULL) {
1642 key = load_key(key_file, key_format, 0, pass, e,
1643 "client certificate private key file");
1644 if (key == NULL) {
1645 ERR_print_errors(bio_err);
1646 goto end;
1647 }
1648 }
1649
1650 if (cert_file != NULL) {
1651 cert = load_cert(cert_file, cert_format, "client certificate file");
1652 if (cert == NULL) {
1653 ERR_print_errors(bio_err);
1654 goto end;
1655 }
1656 }
1657
1658 if (chain_file != NULL) {
1659 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1660 "client certificate chain"))
1661 goto end;
1662 }
1663
1664 if (crl_file != NULL) {
1665 X509_CRL *crl;
1666 crl = load_crl(crl_file, crl_format);
1667 if (crl == NULL) {
1668 BIO_puts(bio_err, "Error loading CRL\n");
1669 ERR_print_errors(bio_err);
1670 goto end;
1671 }
1672 crls = sk_X509_CRL_new_null();
1673 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1674 BIO_puts(bio_err, "Error adding CRL\n");
1675 ERR_print_errors(bio_err);
1676 X509_CRL_free(crl);
1677 goto end;
1678 }
1679 }
1680
1681 if (!load_excert(&exc))
1682 goto end;
1683
1684 if (bio_c_out == NULL) {
1685 if (c_quiet && !c_debug) {
1686 bio_c_out = BIO_new(BIO_s_null());
1687 if (c_msg && bio_c_msg == NULL)
1688 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1689 } else if (bio_c_out == NULL)
1690 bio_c_out = dup_bio_out(FORMAT_TEXT);
1691 }
1692#ifndef OPENSSL_NO_SRP
1693 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1694 BIO_printf(bio_err, "Error getting password\n");
1695 goto end;
1696 }
1697#endif
1698
1699 ctx = SSL_CTX_new(meth);
1700 if (ctx == NULL) {
1701 ERR_print_errors(bio_err);
1702 goto end;
1703 }
1704
1705 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1706
1707 if (sdebug)
1708 ssl_ctx_security_debug(ctx, sdebug);
1709
1710 if (!config_ctx(cctx, ssl_args, ctx))
1711 goto end;
1712
1713 if (ssl_config != NULL) {
1714 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1715 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1716 ssl_config);
1717 ERR_print_errors(bio_err);
1718 goto end;
1719 }
1720 }
1721
1722#ifndef OPENSSL_NO_SCTP
1723 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1724 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1725#endif
1726
1727 if (min_version != 0
1728 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1729 goto end;
1730 if (max_version != 0
1731 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1732 goto end;
1733
1734 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1735 BIO_printf(bio_err, "Error setting verify params\n");
1736 ERR_print_errors(bio_err);
1737 goto end;
1738 }
1739
1740 if (async) {
1741 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1742 }
1743
1744 if (max_send_fragment > 0
1745 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1746 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1747 prog, max_send_fragment);
1748 goto end;
1749 }
1750
1751 if (split_send_fragment > 0
1752 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1753 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1754 prog, split_send_fragment);
1755 goto end;
1756 }
1757
1758 if (max_pipelines > 0
1759 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1760 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1761 prog, max_pipelines);
1762 goto end;
1763 }
1764
1765 if (read_buf_len > 0) {
1766 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1767 }
1768
1769 if (maxfraglen > 0
1770 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1771 BIO_printf(bio_err,
1772 "%s: Max Fragment Length code %u is out of permitted values"
1773 "\n", prog, maxfraglen);
1774 goto end;
1775 }
1776
1777 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1778 crls, crl_download)) {
1779 BIO_printf(bio_err, "Error loading store locations\n");
1780 ERR_print_errors(bio_err);
1781 goto end;
1782 }
1783 if (ReqCAfile != NULL) {
1784 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1785
1786 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1787 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1788 BIO_printf(bio_err, "Error loading CA names\n");
1789 ERR_print_errors(bio_err);
1790 goto end;
1791 }
1792 SSL_CTX_set0_CA_list(ctx, nm);
1793 }
1794#ifndef OPENSSL_NO_ENGINE
1795 if (ssl_client_engine) {
1796 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1797 BIO_puts(bio_err, "Error setting client auth engine\n");
1798 ERR_print_errors(bio_err);
1799 ENGINE_free(ssl_client_engine);
1800 goto end;
1801 }
1802 ENGINE_free(ssl_client_engine);
1803 }
1804#endif
1805
1806#ifndef OPENSSL_NO_PSK
1807 if (psk_key != NULL) {
1808 if (c_debug)
1809 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1810 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1811 }
1812#endif
1813 if (psksessf != NULL) {
1814 BIO *stmp = BIO_new_file(psksessf, "r");
1815
1816 if (stmp == NULL) {
1817 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1818 ERR_print_errors(bio_err);
1819 goto end;
1820 }
1821 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1822 BIO_free(stmp);
1823 if (psksess == NULL) {
1824 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1825 ERR_print_errors(bio_err);
1826 goto end;
1827 }
1828 }
1829 if (psk_key != NULL || psksess != NULL)
1830 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1831
1832#ifndef OPENSSL_NO_SRTP
1833 if (srtp_profiles != NULL) {
1834 /* Returns 0 on success! */
1835 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1836 BIO_printf(bio_err, "Error setting SRTP profile\n");
1837 ERR_print_errors(bio_err);
1838 goto end;
1839 }
1840 }
1841#endif
1842
1843 if (exc != NULL)
1844 ssl_ctx_set_excert(ctx, exc);
1845
1846#if !defined(OPENSSL_NO_NEXTPROTONEG)
1847 if (next_proto.data != NULL)
1848 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1849#endif
1850 if (alpn_in) {
1851 size_t alpn_len;
1852 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1853
1854 if (alpn == NULL) {
1855 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1856 goto end;
1857 }
1858 /* Returns 0 on success! */
1859 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1860 BIO_printf(bio_err, "Error setting ALPN\n");
1861 goto end;
1862 }
1863 OPENSSL_free(alpn);
1864 }
1865
1866 for (i = 0; i < serverinfo_count; i++) {
1867 if (!SSL_CTX_add_client_custom_ext(ctx,
1868 serverinfo_types[i],
1869 NULL, NULL, NULL,
1870 serverinfo_cli_parse_cb, NULL)) {
1871 BIO_printf(bio_err,
1872 "Warning: Unable to add custom extension %u, skipping\n",
1873 serverinfo_types[i]);
1874 }
1875 }
1876
1877 if (state)
1878 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1879
1880#ifndef OPENSSL_NO_CT
1881 /* Enable SCT processing, without early connection termination */
1882 if (ct_validation &&
1883 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1884 ERR_print_errors(bio_err);
1885 goto end;
1886 }
1887
1888 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1889 if (ct_validation) {
1890 ERR_print_errors(bio_err);
1891 goto end;
1892 }
1893
1894 /*
1895 * If CT validation is not enabled, the log list isn't needed so don't
1896 * show errors or abort. We try to load it regardless because then we
1897 * can show the names of the logs any SCTs came from (SCTs may be seen
1898 * even with validation disabled).
1899 */
1900 ERR_clear_error();
1901 }
1902#endif
1903
1904 SSL_CTX_set_verify(ctx, verify, verify_callback);
1905
1906 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1907 ERR_print_errors(bio_err);
1908 goto end;
1909 }
1910
1911 ssl_ctx_add_crls(ctx, crls, crl_download);
1912
1913 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1914 goto end;
1915
1916 if (!noservername) {
1917 tlsextcbp.biodebug = bio_err;
1918 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1919 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1920 }
1921# ifndef OPENSSL_NO_SRP
1922 if (srp_arg.srplogin) {
1923 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1924 BIO_printf(bio_err, "Unable to set SRP username\n");
1925 goto end;
1926 }
1927 srp_arg.msg = c_msg;
1928 srp_arg.debug = c_debug;
1929 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1930 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1931 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1932 if (c_msg || c_debug || srp_arg.amp == 0)
1933 SSL_CTX_set_srp_verify_param_callback(ctx,
1934 ssl_srp_verify_param_cb);
1935 }
1936# endif
1937
1938 if (dane_tlsa_domain != NULL) {
1939 if (SSL_CTX_dane_enable(ctx) <= 0) {
1940 BIO_printf(bio_err,
1941 "%s: Error enabling DANE TLSA authentication.\n",
1942 prog);
1943 ERR_print_errors(bio_err);
1944 goto end;
1945 }
1946 }
1947
1948 /*
1949 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1950 * come at any time. Therefore we use a callback to write out the session
1951 * when we know about it. This approach works for < TLSv1.3 as well.
1952 */
1953 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1954 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1955 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1956
1957 if (set_keylog_file(ctx, keylog_file))
1958 goto end;
1959
1960 con = SSL_new(ctx);
1961 if (con == NULL)
1962 goto end;
1963
1964 if (enable_pha)
1965 SSL_set_post_handshake_auth(con, 1);
1966
1967 if (sess_in != NULL) {
1968 SSL_SESSION *sess;
1969 BIO *stmp = BIO_new_file(sess_in, "r");
1970 if (stmp == NULL) {
1971 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1972 ERR_print_errors(bio_err);
1973 goto end;
1974 }
1975 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1976 BIO_free(stmp);
1977 if (sess == NULL) {
1978 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1979 ERR_print_errors(bio_err);
1980 goto end;
1981 }
1982 if (!SSL_set_session(con, sess)) {
1983 BIO_printf(bio_err, "Can't set session\n");
1984 ERR_print_errors(bio_err);
1985 goto end;
1986 }
1987
1988 SSL_SESSION_free(sess);
1989 }
1990
1991 if (fallback_scsv)
1992 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1993
1994 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1995 if (servername == NULL) {
1996 if(host == NULL || is_dNS_name(host))
1997 servername = (host == NULL) ? "localhost" : host;
1998 }
1999 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
2000 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2001 ERR_print_errors(bio_err);
2002 goto end;
2003 }
2004 }
2005
2006 if (dane_tlsa_domain != NULL) {
2007 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2008 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2009 "authentication.\n", prog);
2010 ERR_print_errors(bio_err);
2011 goto end;
2012 }
2013 if (dane_tlsa_rrset == NULL) {
2014 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2015 "least one -dane_tlsa_rrdata option.\n", prog);
2016 goto end;
2017 }
2018 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2019 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2020 "records.\n", prog);
2021 goto end;
2022 }
2023 if (dane_ee_no_name)
2024 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2025 } else if (dane_tlsa_rrset != NULL) {
2026 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2027 "-dane_tlsa_domain option.\n", prog);
2028 goto end;
2029 }
2030
2031 re_start:
2032 if (init_client(&s, host, port, bindhost, bindport, socket_family,
2033 socket_type, protocol) == 0) {
2034 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2035 BIO_closesocket(s);
2036 goto end;
2037 }
2038 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
2039
2040 if (c_nbio) {
2041 if (!BIO_socket_nbio(s, 1)) {
2042 ERR_print_errors(bio_err);
2043 goto end;
2044 }
2045 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2046 }
2047#ifndef OPENSSL_NO_DTLS
2048 if (isdtls) {
2049 union BIO_sock_info_u peer_info;
2050
2051#ifndef OPENSSL_NO_SCTP
2052 if (protocol == IPPROTO_SCTP)
2053 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2054 else
2055#endif
2056 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2057
2058 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2059 BIO_printf(bio_err, "memory allocation failure\n");
2060 BIO_closesocket(s);
2061 goto end;
2062 }
2063 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2064 BIO_printf(bio_err, "getsockname:errno=%d\n",
2065 get_last_socket_error());
2066 BIO_ADDR_free(peer_info.addr);
2067 BIO_closesocket(s);
2068 goto end;
2069 }
2070
2071 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2072 BIO_ADDR_free(peer_info.addr);
2073 peer_info.addr = NULL;
2074
2075 if (enable_timeouts) {
2076 timeout.tv_sec = 0;
2077 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2078 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2079
2080 timeout.tv_sec = 0;
2081 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2082 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2083 }
2084
2085 if (socket_mtu) {
2086 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2087 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2088 DTLS_get_link_min_mtu(con));
2089 BIO_free(sbio);
2090 goto shut;
2091 }
2092 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2093 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2094 BIO_printf(bio_err, "Failed to set MTU\n");
2095 BIO_free(sbio);
2096 goto shut;
2097 }
2098 } else {
2099 /* want to do MTU discovery */
2100 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2101 }
2102 } else
2103#endif /* OPENSSL_NO_DTLS */
2104 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2105
2106 if (nbio_test) {
2107 BIO *test;
2108
2109 test = BIO_new(BIO_f_nbio_test());
2110 sbio = BIO_push(test, sbio);
2111 }
2112
2113 if (c_debug) {
2114 BIO_set_callback(sbio, bio_dump_callback);
2115 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2116 }
2117 if (c_msg) {
2118#ifndef OPENSSL_NO_SSL_TRACE
2119 if (c_msg == 2)
2120 SSL_set_msg_callback(con, SSL_trace);
2121 else
2122#endif
2123 SSL_set_msg_callback(con, msg_cb);
2124 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2125 }
2126
2127 if (c_tlsextdebug) {
2128 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2129 SSL_set_tlsext_debug_arg(con, bio_c_out);
2130 }
2131#ifndef OPENSSL_NO_OCSP
2132 if (c_status_req) {
2133 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2134 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2135 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2136 }
2137#endif
2138
2139 SSL_set_bio(con, sbio, sbio);
2140 SSL_set_connect_state(con);
2141
2142 /* ok, lets connect */
2143 if (fileno_stdin() > SSL_get_fd(con))
2144 width = fileno_stdin() + 1;
2145 else
2146 width = SSL_get_fd(con) + 1;
2147
2148 read_tty = 1;
2149 write_tty = 0;
2150 tty_on = 0;
2151 read_ssl = 1;
2152 write_ssl = 1;
2153
2154 cbuf_len = 0;
2155 cbuf_off = 0;
2156 sbuf_len = 0;
2157 sbuf_off = 0;
2158
2159 switch ((PROTOCOL_CHOICE) starttls_proto) {
2160 case PROTO_OFF:
2161 break;
2162 case PROTO_LMTP:
2163 case PROTO_SMTP:
2164 {
2165 /*
2166 * This is an ugly hack that does a lot of assumptions. We do
2167 * have to handle multi-line responses which may come in a single
2168 * packet or not. We therefore have to use BIO_gets() which does
2169 * need a buffering BIO. So during the initial chitchat we do
2170 * push a buffering BIO into the chain that is removed again
2171 * later on to not disturb the rest of the s_client operation.
2172 */
2173 int foundit = 0;
2174 BIO *fbio = BIO_new(BIO_f_buffer());
2175
2176 BIO_push(fbio, sbio);
2177 /* Wait for multi-line response to end from LMTP or SMTP */
2178 do {
2179 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2180 } while (mbuf_len > 3 && mbuf[3] == '-');
2181 if (protohost == NULL)
2182 protohost = "mail.example.com";
2183 if (starttls_proto == (int)PROTO_LMTP)
2184 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2185 else
2186 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2187 (void)BIO_flush(fbio);
2188 /*
2189 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2190 * response.
2191 */
2192 do {
2193 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2194 if (strstr(mbuf, "STARTTLS"))
2195 foundit = 1;
2196 } while (mbuf_len > 3 && mbuf[3] == '-');
2197 (void)BIO_flush(fbio);
2198 BIO_pop(fbio);
2199 BIO_free(fbio);
2200 if (!foundit)
2201 BIO_printf(bio_err,
2202 "Didn't find STARTTLS in server response,"
2203 " trying anyway...\n");
2204 BIO_printf(sbio, "STARTTLS\r\n");
2205 BIO_read(sbio, sbuf, BUFSIZZ);
2206 }
2207 break;
2208 case PROTO_POP3:
2209 {
2210 BIO_read(sbio, mbuf, BUFSIZZ);
2211 BIO_printf(sbio, "STLS\r\n");
2212 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2213 if (mbuf_len < 0) {
2214 BIO_printf(bio_err, "BIO_read failed\n");
2215 goto end;
2216 }
2217 }
2218 break;
2219 case PROTO_IMAP:
2220 {
2221 int foundit = 0;
2222 BIO *fbio = BIO_new(BIO_f_buffer());
2223
2224 BIO_push(fbio, sbio);
2225 BIO_gets(fbio, mbuf, BUFSIZZ);
2226 /* STARTTLS command requires CAPABILITY... */
2227 BIO_printf(fbio, ". CAPABILITY\r\n");
2228 (void)BIO_flush(fbio);
2229 /* wait for multi-line CAPABILITY response */
2230 do {
2231 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2232 if (strstr(mbuf, "STARTTLS"))
2233 foundit = 1;
2234 }
2235 while (mbuf_len > 3 && mbuf[0] != '.');
2236 (void)BIO_flush(fbio);
2237 BIO_pop(fbio);
2238 BIO_free(fbio);
2239 if (!foundit)
2240 BIO_printf(bio_err,
2241 "Didn't find STARTTLS in server response,"
2242 " trying anyway...\n");
2243 BIO_printf(sbio, ". STARTTLS\r\n");
2244 BIO_read(sbio, sbuf, BUFSIZZ);
2245 }
2246 break;
2247 case PROTO_FTP:
2248 {
2249 BIO *fbio = BIO_new(BIO_f_buffer());
2250
2251 BIO_push(fbio, sbio);
2252 /* wait for multi-line response to end from FTP */
2253 do {
2254 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2255 }
2256 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' '));
2257 (void)BIO_flush(fbio);
2258 BIO_pop(fbio);
2259 BIO_free(fbio);
2260 BIO_printf(sbio, "AUTH TLS\r\n");
2261 BIO_read(sbio, sbuf, BUFSIZZ);
2262 }
2263 break;
2264 case PROTO_XMPP:
2265 case PROTO_XMPP_SERVER:
2266 {
2267 int seen = 0;
2268 BIO_printf(sbio, "<stream:stream "
2269 "xmlns:stream='http://etherx.jabber.org/streams' "
2270 "xmlns='jabber:%s' to='%s' version='1.0'>",
2271 starttls_proto == PROTO_XMPP ? "client" : "server",
2272 protohost ? protohost : host);
2273 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2274 if (seen < 0) {
2275 BIO_printf(bio_err, "BIO_read failed\n");
2276 goto end;
2277 }
2278 mbuf[seen] = '\0';
2279 while (!strstr
2280 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2281 && !strstr(mbuf,
2282 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2283 {
2284 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2285
2286 if (seen <= 0)
2287 goto shut;
2288
2289 mbuf[seen] = '\0';
2290 }
2291 BIO_printf(sbio,
2292 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2293 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2294 if (seen < 0) {
2295 BIO_printf(bio_err, "BIO_read failed\n");
2296 goto shut;
2297 }
2298 sbuf[seen] = '\0';
2299 if (!strstr(sbuf, "<proceed"))
2300 goto shut;
2301 mbuf[0] = '\0';
2302 }
2303 break;
2304 case PROTO_TELNET:
2305 {
2306 static const unsigned char tls_do[] = {
2307 /* IAC DO START_TLS */
2308 255, 253, 46
2309 };
2310 static const unsigned char tls_will[] = {
2311 /* IAC WILL START_TLS */
2312 255, 251, 46
2313 };
2314 static const unsigned char tls_follows[] = {
2315 /* IAC SB START_TLS FOLLOWS IAC SE */
2316 255, 250, 46, 1, 255, 240
2317 };
2318 int bytes;
2319
2320 /* Telnet server should demand we issue START_TLS */
2321 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2322 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2323 goto shut;
2324 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2325 BIO_write(sbio, tls_will, 3);
2326 BIO_write(sbio, tls_follows, 6);
2327 (void)BIO_flush(sbio);
2328 /* Telnet server also sent the FOLLOWS sub-command */
2329 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2330 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2331 goto shut;
2332 }
2333 break;
2334 case PROTO_CONNECT:
2335 {
2336 enum {
2337 error_proto, /* Wrong protocol, not even HTTP */
2338 error_connect, /* CONNECT failed */
2339 success
2340 } foundit = error_connect;
2341 BIO *fbio = BIO_new(BIO_f_buffer());
2342
2343 BIO_push(fbio, sbio);
2344 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr);
2345 (void)BIO_flush(fbio);
2346 /*
2347 * The first line is the HTTP response. According to RFC 7230,
2348 * it's formatted exactly like this:
2349 *
2350 * HTTP/d.d ddd Reason text\r\n
2351 */
2352 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2353 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2354 BIO_printf(bio_err,
2355 "%s: HTTP CONNECT failed, insufficient response "
2356 "from proxy (got %d octets)\n", prog, mbuf_len);
2357 (void)BIO_flush(fbio);
2358 BIO_pop(fbio);
2359 BIO_free(fbio);
2360 goto shut;
2361 }
2362 if (mbuf[8] != ' ') {
2363 BIO_printf(bio_err,
2364 "%s: HTTP CONNECT failed, incorrect response "
2365 "from proxy\n", prog);
2366 foundit = error_proto;
2367 } else if (mbuf[9] != '2') {
2368 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2369 &mbuf[9]);
2370 } else {
2371 foundit = success;
2372 }
2373 if (foundit != error_proto) {
2374 /* Read past all following headers */
2375 do {
2376 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2377 } while (mbuf_len > 2);
2378 }
2379 (void)BIO_flush(fbio);
2380 BIO_pop(fbio);
2381 BIO_free(fbio);
2382 if (foundit != success) {
2383 goto shut;
2384 }
2385 }
2386 break;
2387 case PROTO_IRC:
2388 {
2389 int numeric;
2390 BIO *fbio = BIO_new(BIO_f_buffer());
2391
2392 BIO_push(fbio, sbio);
2393 BIO_printf(fbio, "STARTTLS\r\n");
2394 (void)BIO_flush(fbio);
2395 width = SSL_get_fd(con) + 1;
2396
2397 do {
2398 numeric = 0;
2399
2400 FD_ZERO(&readfds);
2401 openssl_fdset(SSL_get_fd(con), &readfds);
2402 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2403 timeout.tv_usec = 0;
2404 /*
2405 * If the IRCd doesn't respond within
2406 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2407 * it doesn't support STARTTLS. Many IRCds
2408 * will not give _any_ sort of response to a
2409 * STARTTLS command when it's not supported.
2410 */
2411 if (!BIO_get_buffer_num_lines(fbio)
2412 && !BIO_pending(fbio)
2413 && !BIO_pending(sbio)
2414 && select(width, (void *)&readfds, NULL, NULL,
2415 &timeout) < 1) {
2416 BIO_printf(bio_err,
2417 "Timeout waiting for response (%d seconds).\n",
2418 S_CLIENT_IRC_READ_TIMEOUT);
2419 break;
2420 }
2421
2422 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2423 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2424 break;
2425 /* :example.net 451 STARTTLS :You have not registered */
2426 /* :example.net 421 STARTTLS :Unknown command */
2427 if ((numeric == 451 || numeric == 421)
2428 && strstr(mbuf, "STARTTLS") != NULL) {
2429 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2430 break;
2431 }
2432 if (numeric == 691) {
2433 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2434 ERR_print_errors(bio_err);
2435 break;
2436 }
2437 } while (numeric != 670);
2438
2439 (void)BIO_flush(fbio);
2440 BIO_pop(fbio);
2441 BIO_free(fbio);
2442 if (numeric != 670) {
2443 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2444 ret = 1;
2445 goto shut;
2446 }
2447 }
2448 break;
2449 case PROTO_MYSQL:
2450 {
2451 /* SSL request packet */
2452 static const unsigned char ssl_req[] = {
2453 /* payload_length, sequence_id */
2454 0x20, 0x00, 0x00, 0x01,
2455 /* payload */
2456 /* capability flags, CLIENT_SSL always set */
2457 0x85, 0xae, 0x7f, 0x00,
2458 /* max-packet size */
2459 0x00, 0x00, 0x00, 0x01,
2460 /* character set */
2461 0x21,
2462 /* string[23] reserved (all [0]) */
2463 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2464 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2465 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2466 };
2467 int bytes = 0;
2468 int ssl_flg = 0x800;
2469 int pos;
2470 const unsigned char *packet = (const unsigned char *)sbuf;
2471
2472 /* Receiving Initial Handshake packet. */
2473 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2474 if (bytes < 0) {
2475 BIO_printf(bio_err, "BIO_read failed\n");
2476 goto shut;
2477 /* Packet length[3], Packet number[1] + minimum payload[17] */
2478 } else if (bytes < 21) {
2479 BIO_printf(bio_err, "MySQL packet too short.\n");
2480 goto shut;
2481 } else if (bytes != (4 + packet[0] +
2482 (packet[1] << 8) +
2483 (packet[2] << 16))) {
2484 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2485 goto shut;
2486 /* protocol version[1] */
2487 } else if (packet[4] != 0xA) {
2488 BIO_printf(bio_err,
2489 "Only MySQL protocol version 10 is supported.\n");
2490 goto shut;
2491 }
2492
2493 pos = 5;
2494 /* server version[string+NULL] */
2495 for (;;) {
2496 if (pos >= bytes) {
2497 BIO_printf(bio_err, "Cannot confirm server version. ");
2498 goto shut;
2499 } else if (packet[pos++] == '\0') {
2500 break;
2501 }
2502 }
2503
2504 /* make sure we have at least 15 bytes left in the packet */
2505 if (pos + 15 > bytes) {
2506 BIO_printf(bio_err,
2507 "MySQL server handshake packet is broken.\n");
2508 goto shut;
2509 }
2510
2511 pos += 12; /* skip over conn id[4] + SALT[8] */
2512 if (packet[pos++] != '\0') { /* verify filler */
2513 BIO_printf(bio_err,
2514 "MySQL packet is broken.\n");
2515 goto shut;
2516 }
2517
2518 /* capability flags[2] */
2519 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2520 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2521 goto shut;
2522 }
2523
2524 /* Sending SSL Handshake packet. */
2525 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2526 (void)BIO_flush(sbio);
2527 }
2528 break;
2529 case PROTO_POSTGRES:
2530 {
2531 static const unsigned char ssl_request[] = {
2532 /* Length SSLRequest */
2533 0, 0, 0, 8, 4, 210, 22, 47
2534 };
2535 int bytes;
2536
2537 /* Send SSLRequest packet */
2538 BIO_write(sbio, ssl_request, 8);
2539 (void)BIO_flush(sbio);
2540
2541 /* Reply will be a single S if SSL is enabled */
2542 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2543 if (bytes != 1 || sbuf[0] != 'S')
2544 goto shut;
2545 }
2546 break;
2547 case PROTO_NNTP:
2548 {
2549 int foundit = 0;
2550 BIO *fbio = BIO_new(BIO_f_buffer());
2551
2552 BIO_push(fbio, sbio);
2553 BIO_gets(fbio, mbuf, BUFSIZZ);
2554 /* STARTTLS command requires CAPABILITIES... */
2555 BIO_printf(fbio, "CAPABILITIES\r\n");
2556 (void)BIO_flush(fbio);
2557 /* wait for multi-line CAPABILITIES response */
2558 do {
2559 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2560 if (strstr(mbuf, "STARTTLS"))
2561 foundit = 1;
2562 } while (mbuf_len > 1 && mbuf[0] != '.');
2563 (void)BIO_flush(fbio);
2564 BIO_pop(fbio);
2565 BIO_free(fbio);
2566 if (!foundit)
2567 BIO_printf(bio_err,
2568 "Didn't find STARTTLS in server response,"
2569 " trying anyway...\n");
2570 BIO_printf(sbio, "STARTTLS\r\n");
2571 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2572 if (mbuf_len < 0) {
2573 BIO_printf(bio_err, "BIO_read failed\n");
2574 goto end;
2575 }
2576 mbuf[mbuf_len] = '\0';
2577 if (strstr(mbuf, "382") == NULL) {
2578 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2579 goto shut;
2580 }
2581 }
2582 break;
2583 case PROTO_SIEVE:
2584 {
2585 int foundit = 0;
2586 BIO *fbio = BIO_new(BIO_f_buffer());
2587
2588 BIO_push(fbio, sbio);
2589 /* wait for multi-line response to end from Sieve */
2590 do {
2591 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2592 /*
2593 * According to RFC 5804 § 1.7, capability
2594 * is case-insensitive, make it uppercase
2595 */
2596 if (mbuf_len > 1 && mbuf[0] == '"') {
2597 make_uppercase(mbuf);
2598 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2599 foundit = 1;
2600 }
2601 } while (mbuf_len > 1 && mbuf[0] == '"');
2602 (void)BIO_flush(fbio);
2603 BIO_pop(fbio);
2604 BIO_free(fbio);
2605 if (!foundit)
2606 BIO_printf(bio_err,
2607 "Didn't find STARTTLS in server response,"
2608 " trying anyway...\n");
2609 BIO_printf(sbio, "STARTTLS\r\n");
2610 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2611 if (mbuf_len < 0) {
2612 BIO_printf(bio_err, "BIO_read failed\n");
2613 goto end;
2614 }
2615 mbuf[mbuf_len] = '\0';
2616 if (mbuf_len < 2) {
2617 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2618 goto shut;
2619 }
2620 /*
2621 * According to RFC 5804 § 2.2, response codes are case-
2622 * insensitive, make it uppercase but preserve the response.
2623 */
2624 strncpy(sbuf, mbuf, 2);
2625 make_uppercase(sbuf);
2626 if (strncmp(sbuf, "OK", 2) != 0) {
2627 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2628 goto shut;
2629 }
2630 }
2631 break;
2632 case PROTO_LDAP:
2633 {
2634 /* StartTLS Operation according to RFC 4511 */
2635 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2636 "[LDAPMessage]\n"
2637 "messageID=INTEGER:1\n"
2638 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2639 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2640 long errline = -1;
2641 char *genstr = NULL;
2642 int result = -1;
2643 ASN1_TYPE *atyp = NULL;
2644 BIO *ldapbio = BIO_new(BIO_s_mem());
2645 CONF *cnf = NCONF_new(NULL);
2646
2647 if (cnf == NULL) {
2648 BIO_free(ldapbio);
2649 goto end;
2650 }
2651 BIO_puts(ldapbio, ldap_tls_genconf);
2652 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2653 BIO_free(ldapbio);
2654 NCONF_free(cnf);
2655 if (errline <= 0) {
2656 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2657 goto end;
2658 } else {
2659 BIO_printf(bio_err, "Error on line %ld\n", errline);
2660 goto end;
2661 }
2662 }
2663 BIO_free(ldapbio);
2664 genstr = NCONF_get_string(cnf, "default", "asn1");
2665 if (genstr == NULL) {
2666 NCONF_free(cnf);
2667 BIO_printf(bio_err, "NCONF_get_string failed\n");
2668 goto end;
2669 }
2670 atyp = ASN1_generate_nconf(genstr, cnf);
2671 if (atyp == NULL) {
2672 NCONF_free(cnf);
2673 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2674 goto end;
2675 }
2676 NCONF_free(cnf);
2677
2678 /* Send SSLRequest packet */
2679 BIO_write(sbio, atyp->value.sequence->data,
2680 atyp->value.sequence->length);
2681 (void)BIO_flush(sbio);
2682 ASN1_TYPE_free(atyp);
2683
2684 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2685 if (mbuf_len < 0) {
2686 BIO_printf(bio_err, "BIO_read failed\n");
2687 goto end;
2688 }
2689 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2690 if (result < 0) {
2691 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2692 goto shut;
2693 } else if (result > 0) {
2694 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2695 result);
2696 goto shut;
2697 }
2698 mbuf_len = 0;
2699 }
2700 break;
2701 }
2702
2703 if (early_data_file != NULL
2704 && ((SSL_get0_session(con) != NULL
2705 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2706 || (psksess != NULL
2707 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2708 BIO *edfile = BIO_new_file(early_data_file, "r");
2709 size_t readbytes, writtenbytes;
2710 int finish = 0;
2711
2712 if (edfile == NULL) {
2713 BIO_printf(bio_err, "Cannot open early data file\n");
2714 goto shut;
2715 }
2716
2717 while (!finish) {
2718 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2719 finish = 1;
2720
2721 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2722 switch (SSL_get_error(con, 0)) {
2723 case SSL_ERROR_WANT_WRITE:
2724 case SSL_ERROR_WANT_ASYNC:
2725 case SSL_ERROR_WANT_READ:
2726 /* Just keep trying - busy waiting */
2727 continue;
2728 default:
2729 BIO_printf(bio_err, "Error writing early data\n");
2730 BIO_free(edfile);
2731 ERR_print_errors(bio_err);
2732 goto shut;
2733 }
2734 }
2735 }
2736
2737 BIO_free(edfile);
2738 }
2739
2740 for (;;) {
2741 FD_ZERO(&readfds);
2742 FD_ZERO(&writefds);
2743
2744 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2745 timeoutp = &timeout;
2746 else
2747 timeoutp = NULL;
2748
2749 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2750 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2751 in_init = 1;
2752 tty_on = 0;
2753 } else {
2754 tty_on = 1;
2755 if (in_init) {
2756 in_init = 0;
2757
2758 if (c_brief) {
2759 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2760 print_ssl_summary(con);
2761 }
2762
2763 print_stuff(bio_c_out, con, full_log);
2764 if (full_log > 0)
2765 full_log--;
2766
2767 if (starttls_proto) {
2768 BIO_write(bio_err, mbuf, mbuf_len);
2769 /* We don't need to know any more */
2770 if (!reconnect)
2771 starttls_proto = PROTO_OFF;
2772 }
2773
2774 if (reconnect) {
2775 reconnect--;
2776 BIO_printf(bio_c_out,
2777 "drop connection and then reconnect\n");
2778 do_ssl_shutdown(con);
2779 SSL_set_connect_state(con);
2780 BIO_closesocket(SSL_get_fd(con));
2781 goto re_start;
2782 }
2783 }
2784 }
2785
2786 ssl_pending = read_ssl && SSL_has_pending(con);
2787
2788 if (!ssl_pending) {
2789#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2790 if (tty_on) {
2791 /*
2792 * Note that select() returns when read _would not block_,
2793 * and EOF satisfies that. To avoid a CPU-hogging loop,
2794 * set the flag so we exit.
2795 */
2796 if (read_tty && !at_eof)
2797 openssl_fdset(fileno_stdin(), &readfds);
2798#if !defined(OPENSSL_SYS_VMS)
2799 if (write_tty)
2800 openssl_fdset(fileno_stdout(), &writefds);
2801#endif
2802 }
2803 if (read_ssl)
2804 openssl_fdset(SSL_get_fd(con), &readfds);
2805 if (write_ssl)
2806 openssl_fdset(SSL_get_fd(con), &writefds);
2807#else
2808 if (!tty_on || !write_tty) {
2809 if (read_ssl)
2810 openssl_fdset(SSL_get_fd(con), &readfds);
2811 if (write_ssl)
2812 openssl_fdset(SSL_get_fd(con), &writefds);
2813 }
2814#endif
2815
2816 /*
2817 * Note: under VMS with SOCKETSHR the second parameter is
2818 * currently of type (int *) whereas under other systems it is
2819 * (void *) if you don't have a cast it will choke the compiler:
2820 * if you do have a cast then you can either go for (int *) or
2821 * (void *).
2822 */
2823#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2824 /*
2825 * Under Windows/DOS we make the assumption that we can always
2826 * write to the tty: therefore if we need to write to the tty we
2827 * just fall through. Otherwise we timeout the select every
2828 * second and see if there are any keypresses. Note: this is a
2829 * hack, in a proper Windows application we wouldn't do this.
2830 */
2831 i = 0;
2832 if (!write_tty) {
2833 if (read_tty) {
2834 tv.tv_sec = 1;
2835 tv.tv_usec = 0;
2836 i = select(width, (void *)&readfds, (void *)&writefds,
2837 NULL, &tv);
2838 if (!i && (!has_stdin_waiting() || !read_tty))
2839 continue;
2840 } else
2841 i = select(width, (void *)&readfds, (void *)&writefds,
2842 NULL, timeoutp);
2843 }
2844#else
2845 i = select(width, (void *)&readfds, (void *)&writefds,
2846 NULL, timeoutp);
2847#endif
2848 if (i < 0) {
2849 BIO_printf(bio_err, "bad select %d\n",
2850 get_last_socket_error());
2851 goto shut;
2852 }
2853 }
2854
2855 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2856 BIO_printf(bio_err, "TIMEOUT occurred\n");
2857
2858 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2859 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2860 switch (SSL_get_error(con, k)) {
2861 case SSL_ERROR_NONE:
2862 cbuf_off += k;
2863 cbuf_len -= k;
2864 if (k <= 0)
2865 goto end;
2866 /* we have done a write(con,NULL,0); */
2867 if (cbuf_len <= 0) {
2868 read_tty = 1;
2869 write_ssl = 0;
2870 } else { /* if (cbuf_len > 0) */
2871
2872 read_tty = 0;
2873 write_ssl = 1;
2874 }
2875 break;
2876 case SSL_ERROR_WANT_WRITE:
2877 BIO_printf(bio_c_out, "write W BLOCK\n");
2878 write_ssl = 1;
2879 read_tty = 0;
2880 break;
2881 case SSL_ERROR_WANT_ASYNC:
2882 BIO_printf(bio_c_out, "write A BLOCK\n");
2883 wait_for_async(con);
2884 write_ssl = 1;
2885 read_tty = 0;
2886 break;
2887 case SSL_ERROR_WANT_READ:
2888 BIO_printf(bio_c_out, "write R BLOCK\n");
2889 write_tty = 0;
2890 read_ssl = 1;
2891 write_ssl = 0;
2892 break;
2893 case SSL_ERROR_WANT_X509_LOOKUP:
2894 BIO_printf(bio_c_out, "write X BLOCK\n");
2895 break;
2896 case SSL_ERROR_ZERO_RETURN:
2897 if (cbuf_len != 0) {
2898 BIO_printf(bio_c_out, "shutdown\n");
2899 ret = 0;
2900 goto shut;
2901 } else {
2902 read_tty = 1;
2903 write_ssl = 0;
2904 break;
2905 }
2906
2907 case SSL_ERROR_SYSCALL:
2908 if ((k != 0) || (cbuf_len != 0)) {
2909 BIO_printf(bio_err, "write:errno=%d\n",
2910 get_last_socket_error());
2911 goto shut;
2912 } else {
2913 read_tty = 1;
2914 write_ssl = 0;
2915 }
2916 break;
2917 case SSL_ERROR_WANT_ASYNC_JOB:
2918 /* This shouldn't ever happen in s_client - treat as an error */
2919 case SSL_ERROR_SSL:
2920 ERR_print_errors(bio_err);
2921 goto shut;
2922 }
2923 }
2924#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2925 /* Assume Windows/DOS/BeOS can always write */
2926 else if (!ssl_pending && write_tty)
2927#else
2928 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2929#endif
2930 {
2931#ifdef CHARSET_EBCDIC
2932 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2933#endif
2934 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2935
2936 if (i <= 0) {
2937 BIO_printf(bio_c_out, "DONE\n");
2938 ret = 0;
2939 goto shut;
2940 }
2941
2942 sbuf_len -= i;
2943 sbuf_off += i;
2944 if (sbuf_len <= 0) {
2945 read_ssl = 1;
2946 write_tty = 0;
2947 }
2948 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2949#ifdef RENEG
2950 {
2951 static int iiii;
2952 if (++iiii == 52) {
2953 SSL_renegotiate(con);
2954 iiii = 0;
2955 }
2956 }
2957#endif
2958 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2959
2960 switch (SSL_get_error(con, k)) {
2961 case SSL_ERROR_NONE:
2962 if (k <= 0)
2963 goto end;
2964 sbuf_off = 0;
2965 sbuf_len = k;
2966
2967 read_ssl = 0;
2968 write_tty = 1;
2969 break;
2970 case SSL_ERROR_WANT_ASYNC:
2971 BIO_printf(bio_c_out, "read A BLOCK\n");
2972 wait_for_async(con);
2973 write_tty = 0;
2974 read_ssl = 1;
2975 if ((read_tty == 0) && (write_ssl == 0))
2976 write_ssl = 1;
2977 break;
2978 case SSL_ERROR_WANT_WRITE:
2979 BIO_printf(bio_c_out, "read W BLOCK\n");
2980 write_ssl = 1;
2981 read_tty = 0;
2982 break;
2983 case SSL_ERROR_WANT_READ:
2984 BIO_printf(bio_c_out, "read R BLOCK\n");
2985 write_tty = 0;
2986 read_ssl = 1;
2987 if ((read_tty == 0) && (write_ssl == 0))
2988 write_ssl = 1;
2989 break;
2990 case SSL_ERROR_WANT_X509_LOOKUP:
2991 BIO_printf(bio_c_out, "read X BLOCK\n");
2992 break;
2993 case SSL_ERROR_SYSCALL:
2994 ret = get_last_socket_error();
2995 if (c_brief)
2996 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2997 else
2998 BIO_printf(bio_err, "read:errno=%d\n", ret);
2999 goto shut;
3000 case SSL_ERROR_ZERO_RETURN:
3001 BIO_printf(bio_c_out, "closed\n");
3002 ret = 0;
3003 goto shut;
3004 case SSL_ERROR_WANT_ASYNC_JOB:
3005 /* This shouldn't ever happen in s_client. Treat as an error */
3006 case SSL_ERROR_SSL:
3007 ERR_print_errors(bio_err);
3008 goto shut;
3009 }
3010 }
3011/* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3012#if defined(OPENSSL_SYS_MSDOS)
3013 else if (has_stdin_waiting())
3014#else
3015 else if (FD_ISSET(fileno_stdin(), &readfds))
3016#endif
3017 {
3018 if (crlf) {
3019 int j, lf_num;
3020
3021 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3022 lf_num = 0;
3023 /* both loops are skipped when i <= 0 */
3024 for (j = 0; j < i; j++)
3025 if (cbuf[j] == '\n')
3026 lf_num++;
3027 for (j = i - 1; j >= 0; j--) {
3028 cbuf[j + lf_num] = cbuf[j];
3029 if (cbuf[j] == '\n') {
3030 lf_num--;
3031 i++;
3032 cbuf[j + lf_num] = '\r';
3033 }
3034 }
3035 assert(lf_num == 0);
3036 } else
3037 i = raw_read_stdin(cbuf, BUFSIZZ);
3038#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3039 if (i == 0)
3040 at_eof = 1;
3041#endif
3042
3043 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3044 BIO_printf(bio_err, "DONE\n");
3045 ret = 0;
3046 goto shut;
3047 }
3048
3049 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3050 BIO_printf(bio_err, "RENEGOTIATING\n");
3051 SSL_renegotiate(con);
3052 cbuf_len = 0;
3053 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3054 && cmdletters) {
3055 BIO_printf(bio_err, "KEYUPDATE\n");
3056 SSL_key_update(con,
3057 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3058 : SSL_KEY_UPDATE_NOT_REQUESTED);
3059 cbuf_len = 0;
3060 }
3061#ifndef OPENSSL_NO_HEARTBEATS
3062 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
3063 BIO_printf(bio_err, "HEARTBEATING\n");
3064 SSL_heartbeat(con);
3065 cbuf_len = 0;
3066 }
3067#endif
3068 else {
3069 cbuf_len = i;
3070 cbuf_off = 0;
3071#ifdef CHARSET_EBCDIC
3072 ebcdic2ascii(cbuf, cbuf, i);
3073#endif
3074 }
3075
3076 write_ssl = 1;
3077 read_tty = 0;
3078 }
3079 }
3080
3081 ret = 0;
3082 shut:
3083 if (in_init)
3084 print_stuff(bio_c_out, con, full_log);
3085 do_ssl_shutdown(con);
3086
3087 /*
3088 * If we ended with an alert being sent, but still with data in the
3089 * network buffer to be read, then calling BIO_closesocket() will
3090 * result in a TCP-RST being sent. On some platforms (notably
3091 * Windows) then this will result in the peer immediately abandoning
3092 * the connection including any buffered alert data before it has
3093 * had a chance to be read. Shutting down the sending side first,
3094 * and then closing the socket sends TCP-FIN first followed by
3095 * TCP-RST. This seems to allow the peer to read the alert data.
3096 */
3097 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3098 /*
3099 * We just said we have nothing else to say, but it doesn't mean that
3100 * the other side has nothing. It's even recommended to consume incoming
3101 * data. [In testing context this ensures that alerts are passed on...]
3102 */
3103 timeout.tv_sec = 0;
3104 timeout.tv_usec = 500000; /* some extreme round-trip */
3105 do {
3106 FD_ZERO(&readfds);
3107 openssl_fdset(s, &readfds);
3108 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0
3109 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3110
3111 BIO_closesocket(SSL_get_fd(con));
3112 end:
3113 if (con != NULL) {
3114 if (prexit != 0)
3115 print_stuff(bio_c_out, con, 1);
3116 SSL_free(con);
3117 }
3118 SSL_SESSION_free(psksess);
3119#if !defined(OPENSSL_NO_NEXTPROTONEG)
3120 OPENSSL_free(next_proto.data);
3121#endif
3122 SSL_CTX_free(ctx);
3123 set_keylog_file(NULL, NULL);
3124 X509_free(cert);
3125 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3126 EVP_PKEY_free(key);
3127 sk_X509_pop_free(chain, X509_free);
3128 OPENSSL_free(pass);
3129#ifndef OPENSSL_NO_SRP
3130 OPENSSL_free(srp_arg.srppassin);
3131#endif
3132 OPENSSL_free(connectstr);
3133 OPENSSL_free(bindstr);
3134 OPENSSL_free(host);
3135 OPENSSL_free(port);
3136 X509_VERIFY_PARAM_free(vpm);
3137 ssl_excert_free(exc);
3138 sk_OPENSSL_STRING_free(ssl_args);
3139 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3140 SSL_CONF_CTX_free(cctx);
3141 OPENSSL_clear_free(cbuf, BUFSIZZ);
3142 OPENSSL_clear_free(sbuf, BUFSIZZ);
3143 OPENSSL_clear_free(mbuf, BUFSIZZ);
3144 release_engine(e);
3145 BIO_free(bio_c_out);
3146 bio_c_out = NULL;
3147 BIO_free(bio_c_msg);
3148 bio_c_msg = NULL;
3149 return ret;
3150}
3151
3152static void print_stuff(BIO *bio, SSL *s, int full)
3153{
3154 X509 *peer = NULL;
3155 STACK_OF(X509) *sk;
3156 const SSL_CIPHER *c;
3157 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3158 long verify_result;
3159#ifndef OPENSSL_NO_COMP
3160 const COMP_METHOD *comp, *expansion;
3161#endif
3162 unsigned char *exportedkeymat;
3163#ifndef OPENSSL_NO_CT
3164 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3165#endif
3166
3167 if (full) {
3168 int got_a_chain = 0;
3169
3170 sk = SSL_get_peer_cert_chain(s);
3171 if (sk != NULL) {
3172 got_a_chain = 1;
3173
3174 BIO_printf(bio, "---\nCertificate chain\n");
3175 for (i = 0; i < sk_X509_num(sk); i++) {
3176 BIO_printf(bio, "%2d s:", i);
3177 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3178 BIO_puts(bio, "\n");
3179 BIO_printf(bio, " i:");
3180 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3181 BIO_puts(bio, "\n");
3182 if (c_showcerts)
3183 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3184 }
3185 }
3186
3187 BIO_printf(bio, "---\n");
3188 peer = SSL_get_peer_certificate(s);
3189 if (peer != NULL) {
3190 BIO_printf(bio, "Server certificate\n");
3191
3192 /* Redundant if we showed the whole chain */
3193 if (!(c_showcerts && got_a_chain))
3194 PEM_write_bio_X509(bio, peer);
3195 dump_cert_text(bio, peer);
3196 } else {
3197 BIO_printf(bio, "no peer certificate available\n");
3198 }
3199 print_ca_names(bio, s);
3200
3201 ssl_print_sigalgs(bio, s);
3202 ssl_print_tmp_key(bio, s);
3203
3204#ifndef OPENSSL_NO_CT
3205 /*
3206 * When the SSL session is anonymous, or resumed via an abbreviated
3207 * handshake, no SCTs are provided as part of the handshake. While in
3208 * a resumed session SCTs may be present in the session's certificate,
3209 * no callbacks are invoked to revalidate these, and in any case that
3210 * set of SCTs may be incomplete. Thus it makes little sense to
3211 * attempt to display SCTs from a resumed session's certificate, and of
3212 * course none are associated with an anonymous peer.
3213 */
3214 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3215 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3216 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3217
3218 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3219 if (sct_count > 0) {
3220 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3221
3222 BIO_printf(bio, "---\n");
3223 for (i = 0; i < sct_count; ++i) {
3224 SCT *sct = sk_SCT_value(scts, i);
3225
3226 BIO_printf(bio, "SCT validation status: %s\n",
3227 SCT_validation_status_string(sct));
3228 SCT_print(sct, bio, 0, log_store);
3229 if (i < sct_count - 1)
3230 BIO_printf(bio, "\n---\n");
3231 }
3232 BIO_printf(bio, "\n");
3233 }
3234 }
3235#endif
3236
3237 BIO_printf(bio,
3238 "---\nSSL handshake has read %ju bytes "
3239 "and written %ju bytes\n",
3240 BIO_number_read(SSL_get_rbio(s)),
3241 BIO_number_written(SSL_get_wbio(s)));
3242 }
3243 print_verify_detail(s, bio);
3244 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3245 c = SSL_get_current_cipher(s);
3246 BIO_printf(bio, "%s, Cipher is %s\n",
3247 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3248 if (peer != NULL) {
3249 EVP_PKEY *pktmp;
3250
3251 pktmp = X509_get0_pubkey(peer);
3252 BIO_printf(bio, "Server public key is %d bit\n",
3253 EVP_PKEY_bits(pktmp));
3254 }
3255 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3256 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3257#ifndef OPENSSL_NO_COMP
3258 comp = SSL_get_current_compression(s);
3259 expansion = SSL_get_current_expansion(s);
3260 BIO_printf(bio, "Compression: %s\n",
3261 comp ? SSL_COMP_get_name(comp) : "NONE");
3262 BIO_printf(bio, "Expansion: %s\n",
3263 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3264#endif
3265
3266#ifdef SSL_DEBUG
3267 {
3268 /* Print out local port of connection: useful for debugging */
3269 int sock;
3270 union BIO_sock_info_u info;
3271
3272 sock = SSL_get_fd(s);
3273 if ((info.addr = BIO_ADDR_new()) != NULL
3274 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3275 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3276 ntohs(BIO_ADDR_rawport(info.addr)));
3277 }
3278 BIO_ADDR_free(info.addr);
3279 }
3280#endif
3281
3282#if !defined(OPENSSL_NO_NEXTPROTONEG)
3283 if (next_proto.status != -1) {
3284 const unsigned char *proto;
3285 unsigned int proto_len;
3286 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3287 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3288 BIO_write(bio, proto, proto_len);
3289 BIO_write(bio, "\n", 1);
3290 }
3291#endif
3292 {
3293 const unsigned char *proto;
3294 unsigned int proto_len;
3295 SSL_get0_alpn_selected(s, &proto, &proto_len);
3296 if (proto_len > 0) {
3297 BIO_printf(bio, "ALPN protocol: ");
3298 BIO_write(bio, proto, proto_len);
3299 BIO_write(bio, "\n", 1);
3300 } else
3301 BIO_printf(bio, "No ALPN negotiated\n");
3302 }
3303
3304#ifndef OPENSSL_NO_SRTP
3305 {
3306 SRTP_PROTECTION_PROFILE *srtp_profile =
3307 SSL_get_selected_srtp_profile(s);
3308
3309 if (srtp_profile)
3310 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3311 srtp_profile->name);
3312 }
3313#endif
3314
3315 if (istls13) {
3316 switch (SSL_get_early_data_status(s)) {
3317 case SSL_EARLY_DATA_NOT_SENT:
3318 BIO_printf(bio, "Early data was not sent\n");
3319 break;
3320
3321 case SSL_EARLY_DATA_REJECTED:
3322 BIO_printf(bio, "Early data was rejected\n");
3323 break;
3324
3325 case SSL_EARLY_DATA_ACCEPTED:
3326 BIO_printf(bio, "Early data was accepted\n");
3327 break;
3328
3329 }
3330
3331 /*
3332 * We also print the verify results when we dump session information,
3333 * but in TLSv1.3 we may not get that right away (or at all) depending
3334 * on when we get a NewSessionTicket. Therefore we print it now as well.
3335 */
3336 verify_result = SSL_get_verify_result(s);
3337 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3338 X509_verify_cert_error_string(verify_result));
3339 } else {
3340 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3341 SSL_SESSION_print(bio, SSL_get_session(s));
3342 }
3343
3344 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3345 BIO_printf(bio, "Keying material exporter:\n");
3346 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3347 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3348 exportedkeymat = app_malloc(keymatexportlen, "export key");
3349 if (!SSL_export_keying_material(s, exportedkeymat,
3350 keymatexportlen,
3351 keymatexportlabel,
3352 strlen(keymatexportlabel),
3353 NULL, 0, 0)) {
3354 BIO_printf(bio, " Error\n");
3355 } else {
3356 BIO_printf(bio, " Keying material: ");
3357 for (i = 0; i < keymatexportlen; i++)
3358 BIO_printf(bio, "%02X", exportedkeymat[i]);
3359 BIO_printf(bio, "\n");
3360 }
3361 OPENSSL_free(exportedkeymat);
3362 }
3363 BIO_printf(bio, "---\n");
3364 X509_free(peer);
3365 /* flush, or debugging output gets mixed with http response */
3366 (void)BIO_flush(bio);
3367}
3368
3369# ifndef OPENSSL_NO_OCSP
3370static int ocsp_resp_cb(SSL *s, void *arg)
3371{
3372 const unsigned char *p;
3373 int len;
3374 OCSP_RESPONSE *rsp;
3375 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3376 BIO_puts(arg, "OCSP response: ");
3377 if (p == NULL) {
3378 BIO_puts(arg, "no response sent\n");
3379 return 1;
3380 }
3381 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3382 if (rsp == NULL) {
3383 BIO_puts(arg, "response parse error\n");
3384 BIO_dump_indent(arg, (char *)p, len, 4);
3385 return 0;
3386 }
3387 BIO_puts(arg, "\n======================================\n");
3388 OCSP_RESPONSE_print(arg, rsp, 0);
3389 BIO_puts(arg, "======================================\n");
3390 OCSP_RESPONSE_free(rsp);
3391 return 1;
3392}
3393# endif
3394
3395static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3396{
3397 const unsigned char *cur, *end;
3398 long len;
3399 int tag, xclass, inf, ret = -1;
3400
3401 cur = (const unsigned char *)buf;
3402 end = cur + rem;
3403
3404 /*
3405 * From RFC 4511:
3406 *
3407 * LDAPMessage ::= SEQUENCE {
3408 * messageID MessageID,
3409 * protocolOp CHOICE {
3410 * ...
3411 * extendedResp ExtendedResponse,
3412 * ... },
3413 * controls [0] Controls OPTIONAL }
3414 *
3415 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3416 * COMPONENTS OF LDAPResult,
3417 * responseName [10] LDAPOID OPTIONAL,
3418 * responseValue [11] OCTET STRING OPTIONAL }
3419 *
3420 * LDAPResult ::= SEQUENCE {
3421 * resultCode ENUMERATED {
3422 * success (0),
3423 * ...
3424 * other (80),
3425 * ... },
3426 * matchedDN LDAPDN,
3427 * diagnosticMessage LDAPString,
3428 * referral [3] Referral OPTIONAL }
3429 */
3430
3431 /* pull SEQUENCE */
3432 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3433 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3434 (rem = end - cur, len > rem)) {
3435 BIO_printf(bio_err, "Unexpected LDAP response\n");
3436 goto end;
3437 }
3438
3439 rem = len; /* ensure that we don't overstep the SEQUENCE */
3440
3441 /* pull MessageID */
3442 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3443 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3444 (rem = end - cur, len > rem)) {
3445 BIO_printf(bio_err, "No MessageID\n");
3446 goto end;
3447 }
3448
3449 cur += len; /* shall we check for MessageId match or just skip? */
3450
3451 /* pull [APPLICATION 24] */
3452 rem = end - cur;
3453 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3454 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3455 tag != 24) {
3456 BIO_printf(bio_err, "Not ExtendedResponse\n");
3457 goto end;
3458 }
3459
3460 /* pull resultCode */
3461 rem = end - cur;
3462 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3463 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3464 (rem = end - cur, len > rem)) {
3465 BIO_printf(bio_err, "Not LDAPResult\n");
3466 goto end;
3467 }
3468
3469 /* len should always be one, but just in case... */
3470 for (ret = 0, inf = 0; inf < len; inf++) {
3471 ret <<= 8;
3472 ret |= cur[inf];
3473 }
3474 /* There is more data, but we don't care... */
3475 end:
3476 return ret;
3477}
3478
3479/*
3480 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3481 * before setting it as SNI
3482 */
3483static int is_dNS_name(const char *host)
3484{
3485 const size_t MAX_LABEL_LENGTH = 63;
3486 size_t i;
3487 int isdnsname = 0;
3488 size_t length = strlen(host);
3489 size_t label_length = 0;
3490 int all_numeric = 1;
3491
3492 /*
3493 * Deviation from strict DNS name syntax, also check names with '_'
3494 * Check DNS name syntax, any '-' or '.' must be internal,
3495 * and on either side of each '.' we can't have a '-' or '.'.
3496 *
3497 * If the name has just one label, we don't consider it a DNS name.
3498 */
3499 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3500 char c = host[i];
3501
3502 if ((c >= 'a' && c <= 'z')
3503 || (c >= 'A' && c <= 'Z')
3504 || c == '_') {
3505 label_length += 1;
3506 all_numeric = 0;
3507 continue;
3508 }
3509
3510 if (c >= '0' && c <= '9') {
3511 label_length += 1;
3512 continue;
3513 }
3514
3515 /* Dot and hyphen cannot be first or last. */
3516 if (i > 0 && i < length - 1) {
3517 if (c == '-') {
3518 label_length += 1;
3519 continue;
3520 }
3521 /*
3522 * Next to a dot the preceding and following characters must not be
3523 * another dot or a hyphen. Otherwise, record that the name is
3524 * plausible, since it has two or more labels.
3525 */
3526 if (c == '.'
3527 && host[i + 1] != '.'
3528 && host[i - 1] != '-'
3529 && host[i + 1] != '-') {
3530 label_length = 0;
3531 isdnsname = 1;
3532 continue;
3533 }
3534 }
3535 isdnsname = 0;
3536 break;
3537 }
3538
3539 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3540 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3541
3542 return isdnsname;
3543}
3544#endif /* OPENSSL_NO_SOCK */
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