2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* ====================================================================
11 * Copyright 2005 Nokia. All rights reserved.
13 * The portions of the attached software ("Contribution") is developed by
14 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
17 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
18 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
19 * support (see RFC 4279) to OpenSSL.
21 * No patent licenses or other rights except those expressly stated in
22 * the OpenSSL open source license shall be deemed granted or received
23 * expressly, by implication, estoppel, or otherwise.
25 * No assurances are provided by Nokia that the Contribution does not
26 * infringe the patent or other intellectual property rights of any third
27 * party or that the license provides you with all the necessary rights
28 * to make use of the Contribution.
30 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
31 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
32 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
33 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
42 #include <openssl/e_os2.h>
44 #ifndef OPENSSL_NO_SOCK
47 * With IPv6, it looks like Digital has mixed up the proper order of
48 * recursive header file inclusion, resulting in the compiler complaining
49 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
50 * needed to have fileno() declared correctly... So let's define u_int
52 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
54 typedef unsigned int u_int;
59 #include <openssl/x509.h>
60 #include <openssl/ssl.h>
61 #include <openssl/err.h>
62 #include <openssl/pem.h>
63 #include <openssl/rand.h>
64 #include <openssl/ocsp.h>
65 #include <openssl/bn.h>
66 #include <openssl/async.h>
67 #ifndef OPENSSL_NO_SRP
68 # include <openssl/srp.h>
71 # include <openssl/ct.h>
76 #if defined(__has_feature)
77 # if __has_feature(memory_sanitizer)
78 # include <sanitizer/msan_interface.h>
83 #define BUFSIZZ 1024*8
84 #define S_CLIENT_IRC_READ_TIMEOUT 8
87 static int c_debug = 0;
88 static int c_showcerts = 0;
89 static char *keymatexportlabel = NULL;
90 static int keymatexportlen = 20;
91 static BIO *bio_c_out = NULL;
92 static int c_quiet = 0;
93 static char *sess_out = NULL;
95 static void print_stuff(BIO *berr, SSL *con, int full);
96 #ifndef OPENSSL_NO_OCSP
97 static int ocsp_resp_cb(SSL *s, void *arg);
99 static int ldap_ExtendedResponse_parse(const char *buf, long rem);
101 static int saved_errno;
103 static void save_errno(void)
109 static int restore_errno(void)
116 static void do_ssl_shutdown(SSL *ssl)
121 /* We only do unidirectional shutdown */
122 ret = SSL_shutdown(ssl);
124 switch (SSL_get_error(ssl, ret)) {
125 case SSL_ERROR_WANT_READ:
126 case SSL_ERROR_WANT_WRITE:
127 case SSL_ERROR_WANT_ASYNC:
128 case SSL_ERROR_WANT_ASYNC_JOB:
129 /* We just do busy waiting. Nothing clever */
137 #ifndef OPENSSL_NO_PSK
138 /* Default PSK identity and key */
139 static char *psk_identity = "Client_identity";
141 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
142 unsigned int max_identity_len,
144 unsigned int max_psk_len)
151 BIO_printf(bio_c_out, "psk_client_cb\n");
153 /* no ServerKeyExchange message */
155 BIO_printf(bio_c_out,
156 "NULL received PSK identity hint, continuing anyway\n");
158 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
161 * lookup PSK identity and PSK key based on the given identity hint here
163 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
164 if (ret < 0 || (unsigned int)ret > max_identity_len)
167 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
170 /* convert the PSK key to binary */
171 key = OPENSSL_hexstr2buf(psk_key, &key_len);
173 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
177 if (key_len > max_psk_len) {
179 "psk buffer of callback is too small (%d) for key (%ld)\n",
180 max_psk_len, key_len);
185 memcpy(psk, key, key_len);
189 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
194 BIO_printf(bio_err, "Error in PSK client callback\n");
199 /* This is a context that we pass to callbacks */
200 typedef struct tlsextctx_st {
205 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
207 tlsextctx *p = (tlsextctx *) arg;
208 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
209 if (SSL_get_servername_type(s) != -1)
210 p->ack = !SSL_session_reused(s) && hn != NULL;
212 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
214 return SSL_TLSEXT_ERR_OK;
217 #ifndef OPENSSL_NO_SRP
219 /* This is a context that we pass to all callbacks */
220 typedef struct srp_arg_st {
223 int msg; /* copy from c_msg */
224 int debug; /* copy from c_debug */
225 int amp; /* allow more groups */
226 int strength; /* minimal size for N */
229 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
231 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
233 BN_CTX *bn_ctx = BN_CTX_new();
234 BIGNUM *p = BN_new();
235 BIGNUM *r = BN_new();
237 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
238 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
239 p != NULL && BN_rshift1(p, N) &&
241 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
243 /* verify g^((N-1)/2) == -1 (mod N) */
244 BN_mod_exp(r, g, p, N, bn_ctx) &&
245 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
254 * This callback is used here for two purposes:
255 * - extended debugging
256 * - making some primality tests for unknown groups
257 * The callback is only called for a non default group.
259 * An application does not need the call back at all if
260 * only the standard groups are used. In real life situations,
261 * client and server already share well known groups,
262 * thus there is no need to verify them.
263 * Furthermore, in case that a server actually proposes a group that
264 * is not one of those defined in RFC 5054, it is more appropriate
265 * to add the group to a static list and then compare since
266 * primality tests are rather cpu consuming.
269 static int ssl_srp_verify_param_cb(SSL *s, void *arg)
271 SRP_ARG *srp_arg = (SRP_ARG *)arg;
272 BIGNUM *N = NULL, *g = NULL;
274 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
276 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
277 BIO_printf(bio_err, "SRP parameters:\n");
278 BIO_printf(bio_err, "\tN=");
279 BN_print(bio_err, N);
280 BIO_printf(bio_err, "\n\tg=");
281 BN_print(bio_err, g);
282 BIO_printf(bio_err, "\n");
285 if (SRP_check_known_gN_param(g, N))
288 if (srp_arg->amp == 1) {
291 "SRP param N and g are not known params, going to check deeper.\n");
294 * The srp_moregroups is a real debugging feature. Implementors
295 * should rather add the value to the known ones. The minimal size
296 * has already been tested.
298 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
301 BIO_printf(bio_err, "SRP param N and g rejected.\n");
305 # define PWD_STRLEN 1024
307 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
309 SRP_ARG *srp_arg = (SRP_ARG *)arg;
310 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
314 cb_tmp.password = (char *)srp_arg->srppassin;
315 cb_tmp.prompt_info = "SRP user";
316 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
317 BIO_printf(bio_err, "Can't read Password\n");
328 static char *srtp_profiles = NULL;
330 #ifndef OPENSSL_NO_NEXTPROTONEG
331 /* This the context that we pass to next_proto_cb */
332 typedef struct tlsextnextprotoctx_st {
336 } tlsextnextprotoctx;
338 static tlsextnextprotoctx next_proto;
340 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
341 const unsigned char *in, unsigned int inlen,
344 tlsextnextprotoctx *ctx = arg;
347 /* We can assume that |in| is syntactically valid. */
349 BIO_printf(bio_c_out, "Protocols advertised by server: ");
350 for (i = 0; i < inlen;) {
352 BIO_write(bio_c_out, ", ", 2);
353 BIO_write(bio_c_out, &in[i + 1], in[i]);
356 BIO_write(bio_c_out, "\n", 1);
360 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
361 return SSL_TLSEXT_ERR_OK;
363 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
365 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
366 const unsigned char *in, size_t inlen,
370 unsigned char ext_buf[4 + 65536];
372 /* Reconstruct the type/len fields prior to extension data */
373 ext_buf[0] = ext_type >> 8;
374 ext_buf[1] = ext_type & 0xFF;
375 ext_buf[2] = inlen >> 8;
376 ext_buf[3] = inlen & 0xFF;
377 memcpy(ext_buf + 4, in, inlen);
379 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
381 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
386 * Hex decoder that tolerates optional whitespace. Returns number of bytes
387 * produced, advances inptr to end of input string.
389 static ossl_ssize_t hexdecode(const char **inptr, void *result)
391 unsigned char **out = (unsigned char **)result;
392 const char *in = *inptr;
393 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
394 unsigned char *cp = ret;
401 for (byte = 0; *in; ++in) {
404 if (isspace(_UC(*in)))
406 x = OPENSSL_hexchar2int(*in);
412 if ((nibble ^= 1) == 0) {
425 return cp - (*out = ret);
429 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
430 * inptr to next field skipping leading whitespace.
432 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
434 uint8_t *result = (uint8_t *)out;
435 const char *in = *inptr;
441 v = strtol(in, &endp, 10);
444 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
445 endp == in || !isspace(_UC(*endp)) ||
446 v != (*result = (uint8_t) v)) {
449 for (in = endp; isspace(_UC(*in)); ++in)
459 ossl_ssize_t (*parser)(const char **, void *);
462 static int tlsa_import_rr(SSL *con, const char *rrdata)
464 /* Not necessary to re-init these values; the "parsers" do that. */
465 static uint8_t usage;
466 static uint8_t selector;
467 static uint8_t mtype;
468 static unsigned char *data;
469 static struct tlsa_field tlsa_fields[] = {
470 { &usage, "usage", checked_uint8 },
471 { &selector, "selector", checked_uint8 },
472 { &mtype, "mtype", checked_uint8 },
473 { &data, "data", hexdecode },
476 struct tlsa_field *f;
478 const char *cp = rrdata;
479 ossl_ssize_t len = 0;
481 for (f = tlsa_fields; f->var; ++f) {
482 /* Returns number of bytes produced, advances cp to next field */
483 if ((len = f->parser(&cp, f->var)) <= 0) {
484 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
485 prog, f->name, rrdata);
489 /* The data field is last, so len is its length */
490 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
494 ERR_print_errors(bio_err);
495 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
500 ERR_print_errors(bio_err);
501 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
508 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
510 int num = sk_OPENSSL_STRING_num(rrset);
514 for (i = 0; i < num; ++i) {
515 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
516 if (tlsa_import_rr(con, rrdata) > 0)
522 typedef enum OPTION_choice {
523 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
524 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_UNIX,
525 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
526 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
527 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
528 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
529 OPT_SSL_CLIENT_ENGINE, OPT_RAND, OPT_IGN_EOF, OPT_NO_IGN_EOF,
530 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
531 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
532 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
533 #ifndef OPENSSL_NO_PSK
534 OPT_PSK_IDENTITY, OPT_PSK,
536 #ifndef OPENSSL_NO_SRP
537 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
540 OPT_SSL3, OPT_SSL_CONFIG,
541 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
542 OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
543 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH,
545 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
546 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
547 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME,
548 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_SMTPHOST,
549 OPT_ASYNC, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
554 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
555 #ifndef OPENSSL_NO_CT
556 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
558 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME
561 const OPTIONS s_client_options[] = {
562 {"help", OPT_HELP, '-', "Display this summary"},
563 {"host", OPT_HOST, 's', "Use -connect instead"},
564 {"port", OPT_PORT, 'p', "Use -connect instead"},
565 {"connect", OPT_CONNECT, 's',
566 "TCP/IP where to connect (default is :" PORT ")"},
567 {"proxy", OPT_PROXY, 's',
568 "Connect to via specified proxy to the real server"},
570 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
572 {"4", OPT_4, '-', "Use IPv4 only"},
574 {"6", OPT_6, '-', "Use IPv6 only"},
576 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
577 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
578 {"certform", OPT_CERTFORM, 'F',
579 "Certificate format (PEM or DER) PEM default"},
580 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
581 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
582 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
583 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
584 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
585 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
586 {"no-CAfile", OPT_NOCAFILE, '-',
587 "Do not load the default certificates file"},
588 {"no-CApath", OPT_NOCAPATH, '-',
589 "Do not load certificates from the default certificates directory"},
590 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
591 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
592 "DANE TLSA rrdata presentation form"},
593 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
594 "Disable name checks when matching DANE-EE(3) TLSA records"},
595 {"reconnect", OPT_RECONNECT, '-',
596 "Drop and re-make the connection with the same Session-ID"},
597 {"showcerts", OPT_SHOWCERTS, '-', "Show all certificates in the chain"},
598 {"debug", OPT_DEBUG, '-', "Extra output"},
599 {"msg", OPT_MSG, '-', "Show protocol messages"},
600 {"msgfile", OPT_MSGFILE, '>',
601 "File to send output of -msg or -trace, instead of stdout"},
602 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
603 {"state", OPT_STATE, '-', "Print the ssl states"},
604 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
605 {"quiet", OPT_QUIET, '-', "No s_client output"},
606 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
607 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
608 {"starttls", OPT_STARTTLS, 's',
609 "Use the appropriate STARTTLS command before starting TLS"},
610 {"xmpphost", OPT_XMPPHOST, 's',
611 "Host to use with \"-starttls xmpp[-server]\""},
612 {"rand", OPT_RAND, 's',
613 "Load the file(s) into the random number generator"},
614 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
615 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
616 {"use_srtp", OPT_USE_SRTP, 's',
617 "Offer SRTP key management with a colon-separated profile list"},
618 {"keymatexport", OPT_KEYMATEXPORT, 's',
619 "Export keying material using label"},
620 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
621 "Export len bytes of keying material (default 20)"},
622 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
623 {"name", OPT_SMTPHOST, 's',
624 "Hostname to use for \"-starttls lmtp\" or \"-starttls smtp\""},
625 {"CRL", OPT_CRL, '<', "CRL file to use"},
626 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
627 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
628 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
629 "Close connection on verification error"},
630 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
631 {"brief", OPT_BRIEF, '-',
632 "Restrict output to brief summary of connection parameters"},
633 {"prexit", OPT_PREXIT, '-',
634 "Print session information when the program exits"},
635 {"security_debug", OPT_SECURITY_DEBUG, '-',
636 "Enable security debug messages"},
637 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
638 "Output more security debug output"},
639 {"cert_chain", OPT_CERT_CHAIN, '<',
640 "Certificate chain file (in PEM format)"},
641 {"chainCApath", OPT_CHAINCAPATH, '/',
642 "Use dir as certificate store path to build CA certificate chain"},
643 {"verifyCApath", OPT_VERIFYCAPATH, '/',
644 "Use dir as certificate store path to verify CA certificate"},
645 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
646 {"chainCAfile", OPT_CHAINCAFILE, '<',
647 "CA file for certificate chain (PEM format)"},
648 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
649 "CA file for certificate verification (PEM format)"},
650 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
651 {"servername", OPT_SERVERNAME, 's',
652 "Set TLS extension servername in ClientHello"},
653 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
654 "Hex dump of all TLS extensions received"},
655 #ifndef OPENSSL_NO_OCSP
656 {"status", OPT_STATUS, '-', "Request certificate status from server"},
658 {"serverinfo", OPT_SERVERINFO, 's',
659 "types Send empty ClientHello extensions (comma-separated numbers)"},
660 {"alpn", OPT_ALPN, 's',
661 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
662 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
663 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
664 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'n',
665 "Size used to split data for encrypt pipelines"},
666 {"max_pipelines", OPT_MAX_PIPELINES, 'n',
667 "Maximum number of encrypt/decrypt pipelines to be used"},
668 {"read_buf", OPT_READ_BUF, 'n',
669 "Default read buffer size to be used for connections"},
673 #ifndef OPENSSL_NO_SSL3
674 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
676 #ifndef OPENSSL_NO_TLS1
677 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
679 #ifndef OPENSSL_NO_TLS1_1
680 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
682 #ifndef OPENSSL_NO_TLS1_2
683 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
685 #ifndef OPENSSL_NO_TLS1_3
686 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
688 #ifndef OPENSSL_NO_DTLS
689 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
690 {"timeout", OPT_TIMEOUT, '-',
691 "Enable send/receive timeout on DTLS connections"},
692 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
694 #ifndef OPENSSL_NO_DTLS1
695 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
697 #ifndef OPENSSL_NO_DTLS1_2
698 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
700 #ifndef OPENSSL_NO_SSL_TRACE
701 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
704 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
706 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
707 #ifndef OPENSSL_NO_PSK
708 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
709 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
711 #ifndef OPENSSL_NO_SRP
712 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
713 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
714 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
715 "SRP username into second ClientHello message"},
716 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
717 "Tolerate other than the known g N values."},
718 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
720 #ifndef OPENSSL_NO_NEXTPROTONEG
721 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
722 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
724 #ifndef OPENSSL_NO_ENGINE
725 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
726 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
727 "Specify engine to be used for client certificate operations"},
729 #ifndef OPENSSL_NO_CT
730 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
731 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
732 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
734 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
735 {NULL, OPT_EOF, 0x00, NULL}
738 typedef enum PROTOCOL_choice {
756 static const OPT_PAIR services[] = {
757 {"smtp", PROTO_SMTP},
758 {"pop3", PROTO_POP3},
759 {"imap", PROTO_IMAP},
761 {"xmpp", PROTO_XMPP},
762 {"xmpp-server", PROTO_XMPP_SERVER},
763 {"telnet", PROTO_TELNET},
765 {"postgres", PROTO_POSTGRES},
766 {"lmtp", PROTO_LMTP},
767 {"nntp", PROTO_NNTP},
768 {"sieve", PROTO_SIEVE},
769 {"ldap", PROTO_LDAP},
773 #define IS_INET_FLAG(o) \
774 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
775 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
777 #define IS_PROT_FLAG(o) \
778 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
779 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
781 /* Free |*dest| and optionally set it to a copy of |source|. */
782 static void freeandcopy(char **dest, const char *source)
787 *dest = OPENSSL_strdup(source);
790 static int new_session_cb(SSL *S, SSL_SESSION *sess)
792 BIO *stmp = BIO_new_file(sess_out, "w");
795 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
797 PEM_write_bio_SSL_SESSION(stmp, sess);
802 * We always return a "fail" response so that the session gets freed again
803 * because we haven't used the reference.
808 int s_client_main(int argc, char **argv)
811 EVP_PKEY *key = NULL;
814 STACK_OF(X509) *chain = NULL;
816 X509_VERIFY_PARAM *vpm = NULL;
817 SSL_EXCERT *exc = NULL;
818 SSL_CONF_CTX *cctx = NULL;
819 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
820 char *dane_tlsa_domain = NULL;
821 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
822 int dane_ee_no_name = 0;
823 STACK_OF(X509_CRL) *crls = NULL;
824 const SSL_METHOD *meth = TLS_client_method();
825 const char *CApath = NULL, *CAfile = NULL;
826 char *cbuf = NULL, *sbuf = NULL;
827 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL;
828 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
829 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
830 char *port = OPENSSL_strdup(PORT);
832 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
833 char *sess_in = NULL, *crl_file = NULL, *p;
834 char *xmpphost = NULL;
835 const char *ehlo = "mail.example.com";
836 struct timeval timeout, *timeoutp;
837 fd_set readfds, writefds;
838 int noCApath = 0, noCAfile = 0;
839 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
840 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
843 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
844 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
845 int sbuf_len, sbuf_off, cmdletters = 1;
846 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM;
847 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
848 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
849 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
852 int read_buf_len = 0;
853 int fallback_scsv = 0;
856 #ifndef OPENSSL_NO_DTLS
857 int enable_timeouts = 0;
860 #ifndef OPENSSL_NO_ENGINE
861 ENGINE *ssl_client_engine = NULL;
864 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
867 char *servername = NULL;
868 const char *alpn_in = NULL;
869 tlsextctx tlsextcbp = { NULL, 0 };
870 const char *ssl_config = NULL;
871 #define MAX_SI_TYPES 100
872 unsigned short serverinfo_types[MAX_SI_TYPES];
873 int serverinfo_count = 0, start = 0, len;
874 #ifndef OPENSSL_NO_NEXTPROTONEG
875 const char *next_proto_neg_in = NULL;
877 #ifndef OPENSSL_NO_SRP
878 char *srppass = NULL;
879 int srp_lateuser = 0;
880 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
882 #ifndef OPENSSL_NO_CT
883 char *ctlog_file = NULL;
884 int ct_validation = 0;
886 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
888 unsigned int split_send_fragment = 0;
889 unsigned int max_pipelines = 0;
890 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
892 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
893 int c_tlsextdebug = 0;
894 #ifndef OPENSSL_NO_OCSP
895 int c_status_req = 0;
897 BIO *bio_c_msg = NULL;
898 const char *keylog_file = NULL;
902 /* Known false-positive of MemorySanitizer. */
903 #if defined(__has_feature)
904 # if __has_feature(memory_sanitizer)
905 __msan_unpoison(&readfds, sizeof(readfds));
906 __msan_unpoison(&writefds, sizeof(writefds));
910 prog = opt_progname(argv[0]);
915 vpm = X509_VERIFY_PARAM_new();
916 cctx = SSL_CONF_CTX_new();
918 if (vpm == NULL || cctx == NULL) {
919 BIO_printf(bio_err, "%s: out of memory\n", prog);
923 cbuf = app_malloc(BUFSIZZ, "cbuf");
924 sbuf = app_malloc(BUFSIZZ, "sbuf");
925 mbuf = app_malloc(BUFSIZZ, "mbuf");
927 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
929 prog = opt_init(argc, argv, s_client_options);
930 while ((o = opt_next()) != OPT_EOF) {
931 /* Check for intermixing flags. */
932 if (connect_type == use_unix && IS_INET_FLAG(o)) {
934 "%s: Intermixed protocol flags (unix and internet domains)\n",
938 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
940 "%s: Intermixed protocol flags (internet and unix domains)\n",
945 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
946 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
949 if (IS_NO_PROT_FLAG(o))
951 if (prot_opt == 1 && no_prot_opt) {
953 "Cannot supply both a protocol flag and '-no_<prot>'\n");
961 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
964 opt_help(s_client_options);
968 connect_type = use_inet;
969 socket_family = AF_INET;
974 connect_type = use_inet;
975 socket_family = AF_INET6;
980 connect_type = use_inet;
981 freeandcopy(&host, opt_arg());
984 connect_type = use_inet;
985 freeandcopy(&port, opt_arg());
988 connect_type = use_inet;
989 freeandcopy(&connectstr, opt_arg());
992 proxystr = opt_arg();
993 starttls_proto = PROTO_CONNECT;
997 connect_type = use_unix;
998 socket_family = AF_UNIX;
999 freeandcopy(&host, opt_arg());
1003 xmpphost = opt_arg();
1009 verify = SSL_VERIFY_PEER;
1010 verify_args.depth = atoi(opt_arg());
1012 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1015 cert_file = opt_arg();
1018 if (!set_nameopt(opt_arg()))
1022 crl_file = opt_arg();
1024 case OPT_CRL_DOWNLOAD:
1028 sess_out = opt_arg();
1031 sess_in = opt_arg();
1034 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1038 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1041 case OPT_VERIFY_RET_ERROR:
1042 verify_args.return_error = 1;
1044 case OPT_VERIFY_QUIET:
1045 verify_args.quiet = 1;
1048 c_brief = verify_args.quiet = c_quiet = 1;
1051 if (ssl_args == NULL)
1052 ssl_args = sk_OPENSSL_STRING_new_null();
1053 if (ssl_args == NULL
1054 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1055 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1056 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1061 if (!opt_verify(o, vpm))
1066 if (!args_excert(o, &exc))
1076 c_quiet = c_ign_eof = 1;
1085 e = setup_engine(opt_arg(), 1);
1087 case OPT_SSL_CLIENT_ENGINE:
1088 #ifndef OPENSSL_NO_ENGINE
1089 ssl_client_engine = ENGINE_by_id(opt_arg());
1090 if (ssl_client_engine == NULL) {
1091 BIO_printf(bio_err, "Error getting client auth engine\n");
1102 case OPT_NO_IGN_EOF:
1108 case OPT_TLSEXTDEBUG:
1112 #ifndef OPENSSL_NO_OCSP
1125 bio_c_msg = BIO_new_file(opt_arg(), "w");
1128 #ifndef OPENSSL_NO_SSL_TRACE
1132 case OPT_SECURITY_DEBUG:
1135 case OPT_SECURITY_DEBUG_VERBOSE:
1147 #ifndef OPENSSL_NO_PSK
1148 case OPT_PSK_IDENTITY:
1149 psk_identity = opt_arg();
1152 for (p = psk_key = opt_arg(); *p; p++) {
1153 if (isxdigit(_UC(*p)))
1155 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1160 #ifndef OPENSSL_NO_SRP
1162 srp_arg.srplogin = opt_arg();
1163 if (min_version < TLS1_VERSION)
1164 min_version = TLS1_VERSION;
1167 srppass = opt_arg();
1168 if (min_version < TLS1_VERSION)
1169 min_version = TLS1_VERSION;
1171 case OPT_SRP_STRENGTH:
1172 srp_arg.strength = atoi(opt_arg());
1173 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1175 if (min_version < TLS1_VERSION)
1176 min_version = TLS1_VERSION;
1178 case OPT_SRP_LATEUSER:
1180 if (min_version < TLS1_VERSION)
1181 min_version = TLS1_VERSION;
1183 case OPT_SRP_MOREGROUPS:
1185 if (min_version < TLS1_VERSION)
1186 min_version = TLS1_VERSION;
1189 case OPT_SSL_CONFIG:
1190 ssl_config = opt_arg();
1193 min_version = SSL3_VERSION;
1194 max_version = SSL3_VERSION;
1197 min_version = TLS1_3_VERSION;
1198 max_version = TLS1_3_VERSION;
1201 min_version = TLS1_2_VERSION;
1202 max_version = TLS1_2_VERSION;
1205 min_version = TLS1_1_VERSION;
1206 max_version = TLS1_1_VERSION;
1209 min_version = TLS1_VERSION;
1210 max_version = TLS1_VERSION;
1213 #ifndef OPENSSL_NO_DTLS
1214 meth = DTLS_client_method();
1215 socket_type = SOCK_DGRAM;
1219 #ifndef OPENSSL_NO_DTLS1
1220 meth = DTLS_client_method();
1221 min_version = DTLS1_VERSION;
1222 max_version = DTLS1_VERSION;
1223 socket_type = SOCK_DGRAM;
1227 #ifndef OPENSSL_NO_DTLS1_2
1228 meth = DTLS_client_method();
1229 min_version = DTLS1_2_VERSION;
1230 max_version = DTLS1_2_VERSION;
1231 socket_type = SOCK_DGRAM;
1235 #ifndef OPENSSL_NO_DTLS
1236 enable_timeouts = 1;
1240 #ifndef OPENSSL_NO_DTLS
1241 socket_mtu = atol(opt_arg());
1244 case OPT_FALLBACKSCSV:
1248 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1252 passarg = opt_arg();
1254 case OPT_CERT_CHAIN:
1255 chain_file = opt_arg();
1258 key_file = opt_arg();
1269 case OPT_CHAINCAPATH:
1270 chCApath = opt_arg();
1272 case OPT_VERIFYCAPATH:
1273 vfyCApath = opt_arg();
1275 case OPT_BUILD_CHAIN:
1284 #ifndef OPENSSL_NO_CT
1291 case OPT_CTLOG_FILE:
1292 ctlog_file = opt_arg();
1295 case OPT_CHAINCAFILE:
1296 chCAfile = opt_arg();
1298 case OPT_VERIFYCAFILE:
1299 vfyCAfile = opt_arg();
1301 case OPT_DANE_TLSA_DOMAIN:
1302 dane_tlsa_domain = opt_arg();
1304 case OPT_DANE_TLSA_RRDATA:
1305 if (dane_tlsa_rrset == NULL)
1306 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1307 if (dane_tlsa_rrset == NULL ||
1308 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1309 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1313 case OPT_DANE_EE_NO_NAME:
1314 dane_ee_no_name = 1;
1316 case OPT_NEXTPROTONEG:
1317 #ifndef OPENSSL_NO_NEXTPROTONEG
1318 next_proto_neg_in = opt_arg();
1322 alpn_in = opt_arg();
1324 case OPT_SERVERINFO:
1327 for (start = 0, i = 0; i <= len; ++i) {
1328 if (i == len || p[i] == ',') {
1329 serverinfo_types[serverinfo_count] = atoi(p + start);
1330 if (++serverinfo_count == MAX_SI_TYPES)
1337 if (!opt_pair(opt_arg(), services, &starttls_proto))
1340 case OPT_SERVERNAME:
1341 servername = opt_arg();
1344 srtp_profiles = opt_arg();
1346 case OPT_KEYMATEXPORT:
1347 keymatexportlabel = opt_arg();
1349 case OPT_KEYMATEXPORTLEN:
1350 keymatexportlen = atoi(opt_arg());
1355 case OPT_SPLIT_SEND_FRAG:
1356 split_send_fragment = atoi(opt_arg());
1357 if (split_send_fragment == 0) {
1359 * Not allowed - set to a deliberately bad value so we get an
1360 * error message below
1362 split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH + 1;
1365 case OPT_MAX_PIPELINES:
1366 max_pipelines = atoi(opt_arg());
1369 read_buf_len = atoi(opt_arg());
1371 case OPT_KEYLOG_FILE:
1372 keylog_file = opt_arg();
1376 if (count4or6 >= 2) {
1377 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1380 argc = opt_num_rest();
1386 char *tmp_host = host, *tmp_port = port;
1387 if (connectstr == NULL) {
1388 BIO_printf(bio_err, "%s: -proxy requires use of -connect\n", prog);
1391 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1392 if (tmp_host != host)
1393 OPENSSL_free(tmp_host);
1394 if (tmp_port != port)
1395 OPENSSL_free(tmp_port);
1398 "%s: -proxy argument malformed or ambiguous\n", prog);
1403 char *tmp_host = host, *tmp_port = port;
1404 if (connectstr != NULL)
1405 res = BIO_parse_hostserv(connectstr, &host, &port,
1406 BIO_PARSE_PRIO_HOST);
1407 if (tmp_host != host)
1408 OPENSSL_free(tmp_host);
1409 if (tmp_port != port)
1410 OPENSSL_free(tmp_port);
1413 "%s: -connect argument malformed or ambiguous\n",
1419 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1421 "Can't use unix sockets and datagrams together\n");
1425 if (split_send_fragment > SSL3_RT_MAX_PLAIN_LENGTH) {
1426 BIO_printf(bio_err, "Bad split send fragment size\n");
1430 if (max_pipelines > SSL_MAX_PIPELINES) {
1431 BIO_printf(bio_err, "Bad max pipelines value\n");
1435 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1436 next_proto.status = -1;
1437 if (next_proto_neg_in) {
1439 next_protos_parse(&next_proto.len, next_proto_neg_in);
1440 if (next_proto.data == NULL) {
1441 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1445 next_proto.data = NULL;
1448 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1449 BIO_printf(bio_err, "Error getting password\n");
1453 if (key_file == NULL)
1454 key_file = cert_file;
1457 key = load_key(key_file, key_format, 0, pass, e,
1458 "client certificate private key file");
1460 ERR_print_errors(bio_err);
1466 cert = load_cert(cert_file, cert_format, "client certificate file");
1468 ERR_print_errors(bio_err);
1474 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1475 "client certificate chain"))
1481 crl = load_crl(crl_file, crl_format);
1483 BIO_puts(bio_err, "Error loading CRL\n");
1484 ERR_print_errors(bio_err);
1487 crls = sk_X509_CRL_new_null();
1488 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1489 BIO_puts(bio_err, "Error adding CRL\n");
1490 ERR_print_errors(bio_err);
1496 if (!load_excert(&exc))
1499 if (!app_RAND_load_file(NULL, 1) && inrand == NULL
1500 && !RAND_status()) {
1502 "warning, not much extra random data, consider using the -rand option\n");
1504 if (inrand != NULL) {
1505 randamt = app_RAND_load_files(inrand);
1506 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", randamt);
1509 if (bio_c_out == NULL) {
1510 if (c_quiet && !c_debug) {
1511 bio_c_out = BIO_new(BIO_s_null());
1512 if (c_msg && !bio_c_msg)
1513 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1514 } else if (bio_c_out == NULL)
1515 bio_c_out = dup_bio_out(FORMAT_TEXT);
1517 #ifndef OPENSSL_NO_SRP
1518 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1519 BIO_printf(bio_err, "Error getting password\n");
1524 ctx = SSL_CTX_new(meth);
1526 ERR_print_errors(bio_err);
1531 ssl_ctx_security_debug(ctx, sdebug);
1534 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1535 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1537 ERR_print_errors(bio_err);
1542 if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1544 if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1547 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1548 BIO_printf(bio_err, "Error setting verify params\n");
1549 ERR_print_errors(bio_err);
1554 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1556 if (split_send_fragment > 0) {
1557 SSL_CTX_set_split_send_fragment(ctx, split_send_fragment);
1559 if (max_pipelines > 0) {
1560 SSL_CTX_set_max_pipelines(ctx, max_pipelines);
1563 if (read_buf_len > 0) {
1564 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1567 if (!config_ctx(cctx, ssl_args, ctx))
1570 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1571 crls, crl_download)) {
1572 BIO_printf(bio_err, "Error loading store locations\n");
1573 ERR_print_errors(bio_err);
1576 #ifndef OPENSSL_NO_ENGINE
1577 if (ssl_client_engine) {
1578 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1579 BIO_puts(bio_err, "Error setting client auth engine\n");
1580 ERR_print_errors(bio_err);
1581 ENGINE_free(ssl_client_engine);
1584 ENGINE_free(ssl_client_engine);
1588 #ifndef OPENSSL_NO_PSK
1589 if (psk_key != NULL) {
1591 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1592 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1595 #ifndef OPENSSL_NO_SRTP
1596 if (srtp_profiles != NULL) {
1597 /* Returns 0 on success! */
1598 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1599 BIO_printf(bio_err, "Error setting SRTP profile\n");
1600 ERR_print_errors(bio_err);
1607 ssl_ctx_set_excert(ctx, exc);
1609 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1610 if (next_proto.data)
1611 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1615 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1618 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1621 /* Returns 0 on success! */
1622 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1623 BIO_printf(bio_err, "Error setting ALPN\n");
1629 for (i = 0; i < serverinfo_count; i++) {
1630 if (!SSL_CTX_add_client_custom_ext(ctx,
1631 serverinfo_types[i],
1633 serverinfo_cli_parse_cb, NULL)) {
1635 "Warning: Unable to add custom extension %u, skipping\n",
1636 serverinfo_types[i]);
1641 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1643 #ifndef OPENSSL_NO_CT
1644 /* Enable SCT processing, without early connection termination */
1645 if (ct_validation &&
1646 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1647 ERR_print_errors(bio_err);
1651 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1652 if (ct_validation) {
1653 ERR_print_errors(bio_err);
1658 * If CT validation is not enabled, the log list isn't needed so don't
1659 * show errors or abort. We try to load it regardless because then we
1660 * can show the names of the logs any SCTs came from (SCTs may be seen
1661 * even with validation disabled).
1667 SSL_CTX_set_verify(ctx, verify, verify_callback);
1669 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1670 ERR_print_errors(bio_err);
1674 ssl_ctx_add_crls(ctx, crls, crl_download);
1676 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1679 if (servername != NULL) {
1680 tlsextcbp.biodebug = bio_err;
1681 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1682 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1684 # ifndef OPENSSL_NO_SRP
1685 if (srp_arg.srplogin) {
1686 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1687 BIO_printf(bio_err, "Unable to set SRP username\n");
1690 srp_arg.msg = c_msg;
1691 srp_arg.debug = c_debug;
1692 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1693 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1694 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1695 if (c_msg || c_debug || srp_arg.amp == 0)
1696 SSL_CTX_set_srp_verify_param_callback(ctx,
1697 ssl_srp_verify_param_cb);
1701 if (dane_tlsa_domain != NULL) {
1702 if (SSL_CTX_dane_enable(ctx) <= 0) {
1704 "%s: Error enabling DANE TLSA authentication.\n",
1706 ERR_print_errors(bio_err);
1712 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1713 * come at any time. Therefore we use a callback to write out the session
1714 * when we know about it. This approach works for < TLSv1.3 as well.
1717 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1718 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1719 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1722 if (set_keylog_file(ctx, keylog_file))
1728 BIO *stmp = BIO_new_file(sess_in, "r");
1730 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1731 ERR_print_errors(bio_err);
1734 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1737 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1738 ERR_print_errors(bio_err);
1741 if (!SSL_set_session(con, sess)) {
1742 BIO_printf(bio_err, "Can't set session\n");
1743 ERR_print_errors(bio_err);
1746 SSL_SESSION_free(sess);
1750 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1752 if (servername != NULL) {
1753 if (!SSL_set_tlsext_host_name(con, servername)) {
1754 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1755 ERR_print_errors(bio_err);
1760 if (dane_tlsa_domain != NULL) {
1761 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1762 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1763 "authentication.\n", prog);
1764 ERR_print_errors(bio_err);
1767 if (dane_tlsa_rrset == NULL) {
1768 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
1769 "least one -dane_tlsa_rrdata option.\n", prog);
1772 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
1773 BIO_printf(bio_err, "%s: Failed to import any TLSA "
1774 "records.\n", prog);
1777 if (dane_ee_no_name)
1778 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
1779 } else if (dane_tlsa_rrset != NULL) {
1780 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
1781 "-dane_tlsa_domain option.\n", prog);
1786 if (init_client(&s, host, port, socket_family, socket_type) == 0) {
1787 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
1791 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
1794 if (!BIO_socket_nbio(s, 1)) {
1795 ERR_print_errors(bio_err);
1798 BIO_printf(bio_c_out, "Turned on non blocking io\n");
1800 #ifndef OPENSSL_NO_DTLS
1801 if (socket_type == SOCK_DGRAM) {
1802 union BIO_sock_info_u peer_info;
1804 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
1805 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
1806 BIO_printf(bio_err, "memory allocation failure\n");
1810 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
1811 BIO_printf(bio_err, "getsockname:errno=%d\n",
1812 get_last_socket_error());
1813 BIO_ADDR_free(peer_info.addr);
1818 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
1819 BIO_ADDR_free(peer_info.addr);
1820 peer_info.addr = NULL;
1822 if (enable_timeouts) {
1824 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1825 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1828 timeout.tv_usec = DGRAM_SND_TIMEOUT;
1829 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1833 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
1834 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
1835 DTLS_get_link_min_mtu(con));
1839 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1840 if (!DTLS_set_link_mtu(con, socket_mtu)) {
1841 BIO_printf(bio_err, "Failed to set MTU\n");
1846 /* want to do MTU discovery */
1847 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1849 #endif /* OPENSSL_NO_DTLS */
1850 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1855 test = BIO_new(BIO_f_nbio_test());
1856 sbio = BIO_push(test, sbio);
1860 BIO_set_callback(sbio, bio_dump_callback);
1861 BIO_set_callback_arg(sbio, (char *)bio_c_out);
1864 #ifndef OPENSSL_NO_SSL_TRACE
1866 SSL_set_msg_callback(con, SSL_trace);
1869 SSL_set_msg_callback(con, msg_cb);
1870 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1873 if (c_tlsextdebug) {
1874 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1875 SSL_set_tlsext_debug_arg(con, bio_c_out);
1877 #ifndef OPENSSL_NO_OCSP
1879 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1880 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1881 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1885 SSL_set_bio(con, sbio, sbio);
1886 SSL_set_connect_state(con);
1888 /* ok, lets connect */
1889 if (fileno_stdin() > SSL_get_fd(con))
1890 width = fileno_stdin() + 1;
1892 width = SSL_get_fd(con) + 1;
1905 switch ((PROTOCOL_CHOICE) starttls_proto) {
1912 * This is an ugly hack that does a lot of assumptions. We do
1913 * have to handle multi-line responses which may come in a single
1914 * packet or not. We therefore have to use BIO_gets() which does
1915 * need a buffering BIO. So during the initial chitchat we do
1916 * push a buffering BIO into the chain that is removed again
1917 * later on to not disturb the rest of the s_client operation.
1920 BIO *fbio = BIO_new(BIO_f_buffer());
1922 BIO_push(fbio, sbio);
1923 /* Wait for multi-line response to end from LMTP or SMTP */
1925 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1926 } while (mbuf_len > 3 && mbuf[3] == '-');
1927 if (starttls_proto == (int)PROTO_LMTP)
1928 BIO_printf(fbio, "LHLO %s\r\n", ehlo);
1930 BIO_printf(fbio, "EHLO %s\r\n", ehlo);
1931 (void)BIO_flush(fbio);
1933 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
1937 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1938 if (strstr(mbuf, "STARTTLS"))
1940 } while (mbuf_len > 3 && mbuf[3] == '-');
1941 (void)BIO_flush(fbio);
1946 "Didn't find STARTTLS in server response,"
1947 " trying anyway...\n");
1948 BIO_printf(sbio, "STARTTLS\r\n");
1949 BIO_read(sbio, sbuf, BUFSIZZ);
1954 BIO_read(sbio, mbuf, BUFSIZZ);
1955 BIO_printf(sbio, "STLS\r\n");
1956 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
1958 BIO_printf(bio_err, "BIO_read failed\n");
1966 BIO *fbio = BIO_new(BIO_f_buffer());
1968 BIO_push(fbio, sbio);
1969 BIO_gets(fbio, mbuf, BUFSIZZ);
1970 /* STARTTLS command requires CAPABILITY... */
1971 BIO_printf(fbio, ". CAPABILITY\r\n");
1972 (void)BIO_flush(fbio);
1973 /* wait for multi-line CAPABILITY response */
1975 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
1976 if (strstr(mbuf, "STARTTLS"))
1979 while (mbuf_len > 3 && mbuf[0] != '.');
1980 (void)BIO_flush(fbio);
1985 "Didn't find STARTTLS in server response,"
1986 " trying anyway...\n");
1987 BIO_printf(sbio, ". STARTTLS\r\n");
1988 BIO_read(sbio, sbuf, BUFSIZZ);
1993 BIO *fbio = BIO_new(BIO_f_buffer());
1995 BIO_push(fbio, sbio);
1996 /* wait for multi-line response to end from FTP */
1998 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2000 while (mbuf_len > 3 && mbuf[3] == '-');
2001 (void)BIO_flush(fbio);
2004 BIO_printf(sbio, "AUTH TLS\r\n");
2005 BIO_read(sbio, sbuf, BUFSIZZ);
2009 case PROTO_XMPP_SERVER:
2012 BIO_printf(sbio, "<stream:stream "
2013 "xmlns:stream='http://etherx.jabber.org/streams' "
2014 "xmlns='jabber:%s' to='%s' version='1.0'>",
2015 starttls_proto == PROTO_XMPP ? "client" : "server",
2016 xmpphost ? xmpphost : host);
2017 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2019 BIO_printf(bio_err, "BIO_read failed\n");
2024 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2026 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2028 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2036 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2037 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2039 BIO_printf(bio_err, "BIO_read failed\n");
2043 if (!strstr(sbuf, "<proceed"))
2050 static const unsigned char tls_do[] = {
2051 /* IAC DO START_TLS */
2054 static const unsigned char tls_will[] = {
2055 /* IAC WILL START_TLS */
2058 static const unsigned char tls_follows[] = {
2059 /* IAC SB START_TLS FOLLOWS IAC SE */
2060 255, 250, 46, 1, 255, 240
2064 /* Telnet server should demand we issue START_TLS */
2065 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2066 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2068 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2069 BIO_write(sbio, tls_will, 3);
2070 BIO_write(sbio, tls_follows, 6);
2071 (void)BIO_flush(sbio);
2072 /* Telnet server also sent the FOLLOWS sub-command */
2073 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2074 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2081 error_proto, /* Wrong protocol, not even HTTP */
2082 error_connect, /* CONNECT failed */
2084 } foundit = error_connect;
2085 BIO *fbio = BIO_new(BIO_f_buffer());
2087 BIO_push(fbio, sbio);
2088 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr);
2089 (void)BIO_flush(fbio);
2091 * The first line is the HTTP response. According to RFC 7230,
2092 * it's formated exactly like this:
2094 * HTTP/d.d ddd Reason text\r\n
2096 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2097 if (mbuf[8] != ' ') {
2099 "%s: HTTP CONNECT failed, incorrect response "
2100 "from proxy\n", prog);
2101 foundit = error_proto;
2102 } else if (mbuf[9] != '2') {
2103 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2108 if (foundit != error_proto) {
2109 /* Read past all following headers */
2111 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2112 } while (mbuf_len > 2);
2114 (void)BIO_flush(fbio);
2117 if (foundit != success) {
2125 BIO *fbio = BIO_new(BIO_f_buffer());
2127 BIO_push(fbio, sbio);
2128 BIO_printf(fbio, "STARTTLS\r\n");
2129 (void)BIO_flush(fbio);
2130 width = SSL_get_fd(con) + 1;
2136 openssl_fdset(SSL_get_fd(con), &readfds);
2137 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2138 timeout.tv_usec = 0;
2140 * If the IRCd doesn't respond within
2141 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2142 * it doesn't support STARTTLS. Many IRCds
2143 * will not give _any_ sort of response to a
2144 * STARTTLS command when it's not supported.
2146 if (!BIO_get_buffer_num_lines(fbio)
2147 && !BIO_pending(fbio)
2148 && !BIO_pending(sbio)
2149 && select(width, (void *)&readfds, NULL, NULL,
2152 "Timeout waiting for response (%d seconds).\n",
2153 S_CLIENT_IRC_READ_TIMEOUT);
2157 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2158 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2160 /* :example.net 451 STARTTLS :You have not registered */
2161 /* :example.net 421 STARTTLS :Unknown command */
2162 if ((numeric == 451 || numeric == 421)
2163 && strstr(mbuf, "STARTTLS") != NULL) {
2164 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2167 if (numeric == 691) {
2168 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2169 ERR_print_errors(bio_err);
2172 } while (numeric != 670);
2174 (void)BIO_flush(fbio);
2177 if (numeric != 670) {
2178 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2184 case PROTO_POSTGRES:
2186 static const unsigned char ssl_request[] = {
2187 /* Length SSLRequest */
2188 0, 0, 0, 8, 4, 210, 22, 47
2192 /* Send SSLRequest packet */
2193 BIO_write(sbio, ssl_request, 8);
2194 (void)BIO_flush(sbio);
2196 /* Reply will be a single S if SSL is enabled */
2197 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2198 if (bytes != 1 || sbuf[0] != 'S')
2205 BIO *fbio = BIO_new(BIO_f_buffer());
2207 BIO_push(fbio, sbio);
2208 BIO_gets(fbio, mbuf, BUFSIZZ);
2209 /* STARTTLS command requires CAPABILITIES... */
2210 BIO_printf(fbio, "CAPABILITIES\r\n");
2211 (void)BIO_flush(fbio);
2212 /* wait for multi-line CAPABILITIES response */
2214 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2215 if (strstr(mbuf, "STARTTLS"))
2217 } while (mbuf_len > 1 && mbuf[0] != '.');
2218 (void)BIO_flush(fbio);
2223 "Didn't find STARTTLS in server response,"
2224 " trying anyway...\n");
2225 BIO_printf(sbio, "STARTTLS\r\n");
2226 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2228 BIO_printf(bio_err, "BIO_read failed\n");
2231 mbuf[mbuf_len] = '\0';
2232 if (strstr(mbuf, "382") == NULL) {
2233 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2241 BIO *fbio = BIO_new(BIO_f_buffer());
2243 BIO_push(fbio, sbio);
2244 /* wait for multi-line response to end from Sieve */
2246 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2248 * According to RFC 5804 § 1.7, capability
2249 * is case-insensitive, make it uppercase
2251 if (mbuf_len > 1 && mbuf[0] == '"') {
2252 make_uppercase(mbuf);
2253 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2256 } while (mbuf_len > 1 && mbuf[0] == '"');
2257 (void)BIO_flush(fbio);
2262 "Didn't find STARTTLS in server response,"
2263 " trying anyway...\n");
2264 BIO_printf(sbio, "STARTTLS\r\n");
2265 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2267 BIO_printf(bio_err, "BIO_read failed\n");
2270 mbuf[mbuf_len] = '\0';
2272 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2276 * According to RFC 5804 § 2.2, response codes are case-
2277 * insensitive, make it uppercase but preserve the response.
2279 strncpy(sbuf, mbuf, 2);
2280 make_uppercase(sbuf);
2281 if (strncmp(sbuf, "OK", 2) != 0) {
2282 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2289 /* StartTLS Operation according to RFC 4511 */
2290 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2292 "messageID=INTEGER:1\n"
2293 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2294 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2296 char *genstr = NULL;
2298 ASN1_TYPE *atyp = NULL;
2299 BIO *ldapbio = BIO_new(BIO_s_mem());
2300 CONF *cnf = NCONF_new(NULL);
2306 BIO_puts(ldapbio, ldap_tls_genconf);
2307 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2311 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2314 BIO_printf(bio_err, "Error on line %ld\n", errline);
2319 genstr = NCONF_get_string(cnf, "default", "asn1");
2320 if (genstr == NULL) {
2322 BIO_printf(bio_err, "NCONF_get_string failed\n");
2325 atyp = ASN1_generate_nconf(genstr, cnf);
2328 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2333 /* Send SSLRequest packet */
2334 BIO_write(sbio, atyp->value.sequence->data,
2335 atyp->value.sequence->length);
2336 (void)BIO_flush(sbio);
2337 ASN1_TYPE_free(atyp);
2339 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2341 BIO_printf(bio_err, "BIO_read failed\n");
2344 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2346 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2348 } else if (result > 0) {
2349 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2362 if ((SSL_version(con) == DTLS1_VERSION) &&
2363 DTLSv1_get_timeout(con, &timeout))
2364 timeoutp = &timeout;
2368 if (SSL_in_init(con) && !SSL_total_renegotiations(con)
2369 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2377 if (servername != NULL && !SSL_session_reused(con)) {
2378 BIO_printf(bio_c_out,
2379 "Server did %sacknowledge servername extension.\n",
2380 tlsextcbp.ack ? "" : "not ");
2384 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2385 print_ssl_summary(con);
2388 print_stuff(bio_c_out, con, full_log);
2392 if (starttls_proto) {
2393 BIO_write(bio_err, mbuf, mbuf_len);
2394 /* We don't need to know any more */
2396 starttls_proto = PROTO_OFF;
2401 BIO_printf(bio_c_out,
2402 "drop connection and then reconnect\n");
2403 do_ssl_shutdown(con);
2404 SSL_set_connect_state(con);
2405 BIO_closesocket(SSL_get_fd(con));
2411 ssl_pending = read_ssl && SSL_has_pending(con);
2414 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2417 * Note that select() returns when read _would not block_,
2418 * and EOF satisfies that. To avoid a CPU-hogging loop,
2419 * set the flag so we exit.
2421 if (read_tty && !at_eof)
2422 openssl_fdset(fileno_stdin(), &readfds);
2423 #if !defined(OPENSSL_SYS_VMS)
2425 openssl_fdset(fileno_stdout(), &writefds);
2429 openssl_fdset(SSL_get_fd(con), &readfds);
2431 openssl_fdset(SSL_get_fd(con), &writefds);
2433 if (!tty_on || !write_tty) {
2435 openssl_fdset(SSL_get_fd(con), &readfds);
2437 openssl_fdset(SSL_get_fd(con), &writefds);
2442 * Note: under VMS with SOCKETSHR the second parameter is
2443 * currently of type (int *) whereas under other systems it is
2444 * (void *) if you don't have a cast it will choke the compiler:
2445 * if you do have a cast then you can either go for (int *) or
2448 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2450 * Under Windows/DOS we make the assumption that we can always
2451 * write to the tty: therefore if we need to write to the tty we
2452 * just fall through. Otherwise we timeout the select every
2453 * second and see if there are any keypresses. Note: this is a
2454 * hack, in a proper Windows application we wouldn't do this.
2461 i = select(width, (void *)&readfds, (void *)&writefds,
2463 if (!i && (!has_stdin_waiting() || !read_tty))
2466 i = select(width, (void *)&readfds, (void *)&writefds,
2470 i = select(width, (void *)&readfds, (void *)&writefds,
2474 BIO_printf(bio_err, "bad select %d\n",
2475 get_last_socket_error());
2480 if ((SSL_version(con) == DTLS1_VERSION)
2481 && DTLSv1_handle_timeout(con) > 0) {
2482 BIO_printf(bio_err, "TIMEOUT occurred\n");
2485 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2486 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2487 switch (SSL_get_error(con, k)) {
2488 case SSL_ERROR_NONE:
2493 /* we have done a write(con,NULL,0); */
2494 if (cbuf_len <= 0) {
2497 } else { /* if (cbuf_len > 0) */
2503 case SSL_ERROR_WANT_WRITE:
2504 BIO_printf(bio_c_out, "write W BLOCK\n");
2508 case SSL_ERROR_WANT_ASYNC:
2509 BIO_printf(bio_c_out, "write A BLOCK\n");
2510 wait_for_async(con);
2514 case SSL_ERROR_WANT_READ:
2515 BIO_printf(bio_c_out, "write R BLOCK\n");
2520 case SSL_ERROR_WANT_X509_LOOKUP:
2521 BIO_printf(bio_c_out, "write X BLOCK\n");
2523 case SSL_ERROR_ZERO_RETURN:
2524 if (cbuf_len != 0) {
2525 BIO_printf(bio_c_out, "shutdown\n");
2534 case SSL_ERROR_SYSCALL:
2535 if ((k != 0) || (cbuf_len != 0)) {
2536 BIO_printf(bio_err, "write:errno=%d\n",
2537 get_last_socket_error());
2544 case SSL_ERROR_WANT_ASYNC_JOB:
2545 /* This shouldn't ever happen in s_client - treat as an error */
2547 ERR_print_errors(bio_err);
2551 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2552 /* Assume Windows/DOS/BeOS can always write */
2553 else if (!ssl_pending && write_tty)
2555 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2558 #ifdef CHARSET_EBCDIC
2559 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2561 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2564 BIO_printf(bio_c_out, "DONE\n");
2571 if (sbuf_len <= 0) {
2575 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2580 SSL_renegotiate(con);
2585 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2587 switch (SSL_get_error(con, k)) {
2588 case SSL_ERROR_NONE:
2597 case SSL_ERROR_WANT_ASYNC:
2598 BIO_printf(bio_c_out, "read A BLOCK\n");
2599 wait_for_async(con);
2602 if ((read_tty == 0) && (write_ssl == 0))
2605 case SSL_ERROR_WANT_WRITE:
2606 BIO_printf(bio_c_out, "read W BLOCK\n");
2610 case SSL_ERROR_WANT_READ:
2611 BIO_printf(bio_c_out, "read R BLOCK\n");
2614 if ((read_tty == 0) && (write_ssl == 0))
2617 case SSL_ERROR_WANT_X509_LOOKUP:
2618 BIO_printf(bio_c_out, "read X BLOCK\n");
2620 case SSL_ERROR_SYSCALL:
2621 ret = get_last_socket_error();
2623 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2625 BIO_printf(bio_err, "read:errno=%d\n", ret);
2627 case SSL_ERROR_ZERO_RETURN:
2628 BIO_printf(bio_c_out, "closed\n");
2631 case SSL_ERROR_WANT_ASYNC_JOB:
2632 /* This shouldn't ever happen in s_client. Treat as an error */
2634 ERR_print_errors(bio_err);
2638 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2639 #if defined(OPENSSL_SYS_MSDOS)
2640 else if (has_stdin_waiting())
2642 else if (FD_ISSET(fileno_stdin(), &readfds))
2648 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
2650 /* both loops are skipped when i <= 0 */
2651 for (j = 0; j < i; j++)
2652 if (cbuf[j] == '\n')
2654 for (j = i - 1; j >= 0; j--) {
2655 cbuf[j + lf_num] = cbuf[j];
2656 if (cbuf[j] == '\n') {
2659 cbuf[j + lf_num] = '\r';
2662 assert(lf_num == 0);
2664 i = raw_read_stdin(cbuf, BUFSIZZ);
2665 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2670 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
2671 BIO_printf(bio_err, "DONE\n");
2676 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
2677 BIO_printf(bio_err, "RENEGOTIATING\n");
2678 SSL_renegotiate(con);
2682 if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
2684 BIO_printf(bio_err, "KEYUPDATE\n");
2686 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
2687 : SSL_KEY_UPDATE_NOT_REQUESTED);
2690 #ifndef OPENSSL_NO_HEARTBEATS
2691 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
2692 BIO_printf(bio_err, "HEARTBEATING\n");
2700 #ifdef CHARSET_EBCDIC
2701 ebcdic2ascii(cbuf, cbuf, i);
2713 print_stuff(bio_c_out, con, full_log);
2714 do_ssl_shutdown(con);
2715 #if defined(OPENSSL_SYS_WINDOWS)
2717 * Give the socket time to send its last data before we close it.
2718 * No amount of setting SO_LINGER etc on the socket seems to persuade
2719 * Windows to send the data before closing the socket...but sleeping
2720 * for a short time seems to do it (units in ms)
2721 * TODO: Find a better way to do this
2725 BIO_closesocket(SSL_get_fd(con));
2729 print_stuff(bio_c_out, con, 1);
2732 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2733 OPENSSL_free(next_proto.data);
2736 set_keylog_file(NULL, NULL);
2738 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2740 sk_X509_pop_free(chain, X509_free);
2742 #ifndef OPENSSL_NO_SRP
2743 OPENSSL_free(srp_arg.srppassin);
2745 OPENSSL_free(connectstr);
2748 X509_VERIFY_PARAM_free(vpm);
2749 ssl_excert_free(exc);
2750 sk_OPENSSL_STRING_free(ssl_args);
2751 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
2752 SSL_CONF_CTX_free(cctx);
2753 OPENSSL_clear_free(cbuf, BUFSIZZ);
2754 OPENSSL_clear_free(sbuf, BUFSIZZ);
2755 OPENSSL_clear_free(mbuf, BUFSIZZ);
2757 BIO_free(bio_c_out);
2759 BIO_free(bio_c_msg);
2764 static void print_stuff(BIO *bio, SSL *s, int full)
2769 STACK_OF(X509_NAME) *sk2;
2770 const SSL_CIPHER *c;
2773 #ifndef OPENSSL_NO_COMP
2774 const COMP_METHOD *comp, *expansion;
2776 unsigned char *exportedkeymat;
2777 #ifndef OPENSSL_NO_CT
2778 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
2782 int got_a_chain = 0;
2784 sk = SSL_get_peer_cert_chain(s);
2788 BIO_printf(bio, "---\nCertificate chain\n");
2789 for (i = 0; i < sk_X509_num(sk); i++) {
2790 X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)),
2792 BIO_printf(bio, "%2d s:%s\n", i, buf);
2793 X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)),
2795 BIO_printf(bio, " i:%s\n", buf);
2797 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
2801 BIO_printf(bio, "---\n");
2802 peer = SSL_get_peer_certificate(s);
2804 BIO_printf(bio, "Server certificate\n");
2806 /* Redundant if we showed the whole chain */
2807 if (!(c_showcerts && got_a_chain))
2808 PEM_write_bio_X509(bio, peer);
2809 X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof buf);
2810 BIO_printf(bio, "subject=%s\n", buf);
2811 X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof buf);
2812 BIO_printf(bio, "issuer=%s\n", buf);
2814 BIO_printf(bio, "no peer certificate available\n");
2816 sk2 = SSL_get_client_CA_list(s);
2817 if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) {
2818 BIO_printf(bio, "---\nAcceptable client certificate CA names\n");
2819 for (i = 0; i < sk_X509_NAME_num(sk2); i++) {
2820 xn = sk_X509_NAME_value(sk2, i);
2821 X509_NAME_oneline(xn, buf, sizeof(buf));
2822 BIO_write(bio, buf, strlen(buf));
2823 BIO_write(bio, "\n", 1);
2826 BIO_printf(bio, "---\nNo client certificate CA names sent\n");
2829 ssl_print_sigalgs(bio, s);
2830 ssl_print_tmp_key(bio, s);
2832 #ifndef OPENSSL_NO_CT
2834 * When the SSL session is anonymous, or resumed via an abbreviated
2835 * handshake, no SCTs are provided as part of the handshake. While in
2836 * a resumed session SCTs may be present in the session's certificate,
2837 * no callbacks are invoked to revalidate these, and in any case that
2838 * set of SCTs may be incomplete. Thus it makes little sense to
2839 * attempt to display SCTs from a resumed session's certificate, and of
2840 * course none are associated with an anonymous peer.
2842 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
2843 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
2844 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
2846 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
2847 if (sct_count > 0) {
2848 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
2850 BIO_printf(bio, "---\n");
2851 for (i = 0; i < sct_count; ++i) {
2852 SCT *sct = sk_SCT_value(scts, i);
2854 BIO_printf(bio, "SCT validation status: %s\n",
2855 SCT_validation_status_string(sct));
2856 SCT_print(sct, bio, 0, log_store);
2857 if (i < sct_count - 1)
2858 BIO_printf(bio, "\n---\n");
2860 BIO_printf(bio, "\n");
2866 "---\nSSL handshake has read %" PRIu64
2867 " bytes and written %" PRIu64 " bytes\n",
2868 BIO_number_read(SSL_get_rbio(s)),
2869 BIO_number_written(SSL_get_wbio(s)));
2871 print_verify_detail(s, bio);
2872 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
2873 c = SSL_get_current_cipher(s);
2874 BIO_printf(bio, "%s, Cipher is %s\n",
2875 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2879 pktmp = X509_get0_pubkey(peer);
2880 BIO_printf(bio, "Server public key is %d bit\n",
2881 EVP_PKEY_bits(pktmp));
2883 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2884 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2885 #ifndef OPENSSL_NO_COMP
2886 comp = SSL_get_current_compression(s);
2887 expansion = SSL_get_current_expansion(s);
2888 BIO_printf(bio, "Compression: %s\n",
2889 comp ? SSL_COMP_get_name(comp) : "NONE");
2890 BIO_printf(bio, "Expansion: %s\n",
2891 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2896 /* Print out local port of connection: useful for debugging */
2898 union BIO_sock_info_u info;
2900 sock = SSL_get_fd(s);
2901 if ((info.addr = BIO_ADDR_new()) != NULL
2902 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
2903 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
2904 ntohs(BIO_ADDR_rawport(info.addr)));
2906 BIO_ADDR_free(info.addr);
2910 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2911 if (next_proto.status != -1) {
2912 const unsigned char *proto;
2913 unsigned int proto_len;
2914 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
2915 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
2916 BIO_write(bio, proto, proto_len);
2917 BIO_write(bio, "\n", 1);
2921 const unsigned char *proto;
2922 unsigned int proto_len;
2923 SSL_get0_alpn_selected(s, &proto, &proto_len);
2924 if (proto_len > 0) {
2925 BIO_printf(bio, "ALPN protocol: ");
2926 BIO_write(bio, proto, proto_len);
2927 BIO_write(bio, "\n", 1);
2929 BIO_printf(bio, "No ALPN negotiated\n");
2932 #ifndef OPENSSL_NO_SRTP
2934 SRTP_PROTECTION_PROFILE *srtp_profile =
2935 SSL_get_selected_srtp_profile(s);
2938 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
2939 srtp_profile->name);
2943 SSL_SESSION_print(bio, SSL_get_session(s));
2944 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
2945 BIO_printf(bio, "Keying material exporter:\n");
2946 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
2947 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
2948 exportedkeymat = app_malloc(keymatexportlen, "export key");
2949 if (!SSL_export_keying_material(s, exportedkeymat,
2952 strlen(keymatexportlabel),
2954 BIO_printf(bio, " Error\n");
2956 BIO_printf(bio, " Keying material: ");
2957 for (i = 0; i < keymatexportlen; i++)
2958 BIO_printf(bio, "%02X", exportedkeymat[i]);
2959 BIO_printf(bio, "\n");
2961 OPENSSL_free(exportedkeymat);
2963 BIO_printf(bio, "---\n");
2965 /* flush, or debugging output gets mixed with http response */
2966 (void)BIO_flush(bio);
2969 # ifndef OPENSSL_NO_OCSP
2970 static int ocsp_resp_cb(SSL *s, void *arg)
2972 const unsigned char *p;
2975 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
2976 BIO_puts(arg, "OCSP response: ");
2978 BIO_puts(arg, "no response sent\n");
2981 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
2983 BIO_puts(arg, "response parse error\n");
2984 BIO_dump_indent(arg, (char *)p, len, 4);
2987 BIO_puts(arg, "\n======================================\n");
2988 OCSP_RESPONSE_print(arg, rsp, 0);
2989 BIO_puts(arg, "======================================\n");
2990 OCSP_RESPONSE_free(rsp);
2995 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
2997 const unsigned char *cur, *end;
2999 int tag, xclass, inf, ret = -1;
3001 cur = (const unsigned char *)buf;
3007 * LDAPMessage ::= SEQUENCE {
3008 * messageID MessageID,
3009 * protocolOp CHOICE {
3011 * extendedResp ExtendedResponse,
3013 * controls [0] Controls OPTIONAL }
3015 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3016 * COMPONENTS OF LDAPResult,
3017 * responseName [10] LDAPOID OPTIONAL,
3018 * responseValue [11] OCTET STRING OPTIONAL }
3020 * LDAPResult ::= SEQUENCE {
3021 * resultCode ENUMERATED {
3027 * diagnosticMessage LDAPString,
3028 * referral [3] Referral OPTIONAL }
3032 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3033 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3034 (rem = end - cur, len > rem)) {
3035 BIO_printf(bio_err, "Unexpected LDAP response\n");
3039 /* pull MessageID */
3040 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3041 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3042 (rem = end - cur, len > rem)) {
3043 BIO_printf(bio_err, "No MessageID\n");
3047 cur += len; /* shall we check for MessageId match or just skip? */
3049 /* pull [APPLICATION 24] */
3051 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3052 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3054 BIO_printf(bio_err, "Not ExtendedResponse\n");
3058 /* pull resultCode */
3060 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3061 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3062 (rem = end - cur, len > rem)) {
3063 BIO_printf(bio_err, "Not LDAPResult\n");
3067 /* len should always be one, but just in case... */
3068 for (ret = 0, inf = 0; inf < len; inf++) {
3072 /* There is more data, but we don't care... */
3077 #endif /* OPENSSL_NO_SOCK */