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 (max_psk_len > INT_MAX || key_len > (long)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_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
543 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
544 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
545 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
546 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
547 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_SMTPHOST,
548 OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF,
549 OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
553 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN,
554 #ifndef OPENSSL_NO_CT
555 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
557 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME
560 const OPTIONS s_client_options[] = {
561 {"help", OPT_HELP, '-', "Display this summary"},
562 {"host", OPT_HOST, 's', "Use -connect instead"},
563 {"port", OPT_PORT, 'p', "Use -connect instead"},
564 {"connect", OPT_CONNECT, 's',
565 "TCP/IP where to connect (default is :" PORT ")"},
566 {"proxy", OPT_PROXY, 's',
567 "Connect to via specified proxy to the real server"},
569 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
571 {"4", OPT_4, '-', "Use IPv4 only"},
573 {"6", OPT_6, '-', "Use IPv6 only"},
575 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
576 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
577 {"certform", OPT_CERTFORM, 'F',
578 "Certificate format (PEM or DER) PEM default"},
579 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
580 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
581 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
582 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
583 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
584 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
585 {"no-CAfile", OPT_NOCAFILE, '-',
586 "Do not load the default certificates file"},
587 {"no-CApath", OPT_NOCAPATH, '-',
588 "Do not load certificates from the default certificates directory"},
589 {"requestCAfile", OPT_REQCAFILE, '<',
590 "PEM format file of CA names to send to the server"},
591 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
592 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
593 "DANE TLSA rrdata presentation form"},
594 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
595 "Disable name checks when matching DANE-EE(3) TLSA records"},
596 {"reconnect", OPT_RECONNECT, '-',
597 "Drop and re-make the connection with the same Session-ID"},
598 {"showcerts", OPT_SHOWCERTS, '-', "Show all certificates in the chain"},
599 {"debug", OPT_DEBUG, '-', "Extra output"},
600 {"msg", OPT_MSG, '-', "Show protocol messages"},
601 {"msgfile", OPT_MSGFILE, '>',
602 "File to send output of -msg or -trace, instead of stdout"},
603 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
604 {"state", OPT_STATE, '-', "Print the ssl states"},
605 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
606 {"quiet", OPT_QUIET, '-', "No s_client output"},
607 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
608 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
609 {"starttls", OPT_STARTTLS, 's',
610 "Use the appropriate STARTTLS command before starting TLS"},
611 {"xmpphost", OPT_XMPPHOST, 's',
612 "Host to use with \"-starttls xmpp[-server]\""},
613 {"rand", OPT_RAND, 's',
614 "Load the file(s) into the random number generator"},
615 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
616 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
617 {"use_srtp", OPT_USE_SRTP, 's',
618 "Offer SRTP key management with a colon-separated profile list"},
619 {"keymatexport", OPT_KEYMATEXPORT, 's',
620 "Export keying material using label"},
621 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
622 "Export len bytes of keying material (default 20)"},
623 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
624 {"name", OPT_SMTPHOST, 's',
625 "Hostname to use for \"-starttls lmtp\" or \"-starttls smtp\""},
626 {"CRL", OPT_CRL, '<', "CRL file to use"},
627 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
628 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
629 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
630 "Close connection on verification error"},
631 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
632 {"brief", OPT_BRIEF, '-',
633 "Restrict output to brief summary of connection parameters"},
634 {"prexit", OPT_PREXIT, '-',
635 "Print session information when the program exits"},
636 {"security_debug", OPT_SECURITY_DEBUG, '-',
637 "Enable security debug messages"},
638 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
639 "Output more security debug output"},
640 {"cert_chain", OPT_CERT_CHAIN, '<',
641 "Certificate chain file (in PEM format)"},
642 {"chainCApath", OPT_CHAINCAPATH, '/',
643 "Use dir as certificate store path to build CA certificate chain"},
644 {"verifyCApath", OPT_VERIFYCAPATH, '/',
645 "Use dir as certificate store path to verify CA certificate"},
646 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
647 {"chainCAfile", OPT_CHAINCAFILE, '<',
648 "CA file for certificate chain (PEM format)"},
649 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
650 "CA file for certificate verification (PEM format)"},
651 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
652 {"servername", OPT_SERVERNAME, 's',
653 "Set TLS extension servername in ClientHello"},
654 {"noservername", OPT_NOSERVERNAME, '-',
655 "Do not send the server name (SNI) extension in the ClientHello"},
656 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
657 "Hex dump of all TLS extensions received"},
658 #ifndef OPENSSL_NO_OCSP
659 {"status", OPT_STATUS, '-', "Request certificate status from server"},
661 {"serverinfo", OPT_SERVERINFO, 's',
662 "types Send empty ClientHello extensions (comma-separated numbers)"},
663 {"alpn", OPT_ALPN, 's',
664 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
665 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
666 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
667 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
668 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
669 "Size used to split data for encrypt pipelines"},
670 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
671 "Maximum number of encrypt/decrypt pipelines to be used"},
672 {"read_buf", OPT_READ_BUF, 'p',
673 "Default read buffer size to be used for connections"},
677 #ifndef OPENSSL_NO_SSL3
678 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
680 #ifndef OPENSSL_NO_TLS1
681 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
683 #ifndef OPENSSL_NO_TLS1_1
684 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
686 #ifndef OPENSSL_NO_TLS1_2
687 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
689 #ifndef OPENSSL_NO_TLS1_3
690 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
692 #ifndef OPENSSL_NO_DTLS
693 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
694 {"timeout", OPT_TIMEOUT, '-',
695 "Enable send/receive timeout on DTLS connections"},
696 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
698 #ifndef OPENSSL_NO_DTLS1
699 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
701 #ifndef OPENSSL_NO_DTLS1_2
702 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
704 #ifndef OPENSSL_NO_SCTP
705 {"sctp", OPT_SCTP, '-', "Use SCTP"},
707 #ifndef OPENSSL_NO_SSL_TRACE
708 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
711 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
713 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
714 #ifndef OPENSSL_NO_PSK
715 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
716 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
718 #ifndef OPENSSL_NO_SRP
719 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
720 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
721 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
722 "SRP username into second ClientHello message"},
723 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
724 "Tolerate other than the known g N values."},
725 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
727 #ifndef OPENSSL_NO_NEXTPROTONEG
728 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
729 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
731 #ifndef OPENSSL_NO_ENGINE
732 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
733 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
734 "Specify engine to be used for client certificate operations"},
736 #ifndef OPENSSL_NO_CT
737 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
738 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
739 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
741 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
742 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
743 {NULL, OPT_EOF, 0x00, NULL}
746 typedef enum PROTOCOL_choice {
764 static const OPT_PAIR services[] = {
765 {"smtp", PROTO_SMTP},
766 {"pop3", PROTO_POP3},
767 {"imap", PROTO_IMAP},
769 {"xmpp", PROTO_XMPP},
770 {"xmpp-server", PROTO_XMPP_SERVER},
771 {"telnet", PROTO_TELNET},
773 {"postgres", PROTO_POSTGRES},
774 {"lmtp", PROTO_LMTP},
775 {"nntp", PROTO_NNTP},
776 {"sieve", PROTO_SIEVE},
777 {"ldap", PROTO_LDAP},
781 #define IS_INET_FLAG(o) \
782 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
783 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
785 #define IS_PROT_FLAG(o) \
786 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
787 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
789 /* Free |*dest| and optionally set it to a copy of |source|. */
790 static void freeandcopy(char **dest, const char *source)
795 *dest = OPENSSL_strdup(source);
798 static int new_session_cb(SSL *S, SSL_SESSION *sess)
800 BIO *stmp = BIO_new_file(sess_out, "w");
803 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
805 PEM_write_bio_SSL_SESSION(stmp, sess);
810 * We always return a "fail" response so that the session gets freed again
811 * because we haven't used the reference.
816 int s_client_main(int argc, char **argv)
819 EVP_PKEY *key = NULL;
822 STACK_OF(X509) *chain = NULL;
824 X509_VERIFY_PARAM *vpm = NULL;
825 SSL_EXCERT *exc = NULL;
826 SSL_CONF_CTX *cctx = NULL;
827 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
828 char *dane_tlsa_domain = NULL;
829 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
830 int dane_ee_no_name = 0;
831 STACK_OF(X509_CRL) *crls = NULL;
832 const SSL_METHOD *meth = TLS_client_method();
833 const char *CApath = NULL, *CAfile = NULL;
834 char *cbuf = NULL, *sbuf = NULL;
835 char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL;
836 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
837 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
838 char *port = OPENSSL_strdup(PORT);
840 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
841 char *ReqCAfile = NULL;
842 char *sess_in = NULL, *crl_file = NULL, *p;
843 char *xmpphost = NULL;
844 const char *ehlo = "mail.example.com";
845 struct timeval timeout, *timeoutp;
846 fd_set readfds, writefds;
847 int noCApath = 0, noCAfile = 0;
848 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
849 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
852 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
853 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
854 int sbuf_len, sbuf_off, cmdletters = 1;
855 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
856 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
857 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
858 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
861 int read_buf_len = 0;
862 int fallback_scsv = 0;
865 #ifndef OPENSSL_NO_DTLS
866 int enable_timeouts = 0;
869 #ifndef OPENSSL_NO_ENGINE
870 ENGINE *ssl_client_engine = NULL;
873 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
876 char *servername = NULL;
877 int noservername = 0;
878 const char *alpn_in = NULL;
879 tlsextctx tlsextcbp = { NULL, 0 };
880 const char *ssl_config = NULL;
881 #define MAX_SI_TYPES 100
882 unsigned short serverinfo_types[MAX_SI_TYPES];
883 int serverinfo_count = 0, start = 0, len;
884 #ifndef OPENSSL_NO_NEXTPROTONEG
885 const char *next_proto_neg_in = NULL;
887 #ifndef OPENSSL_NO_SRP
888 char *srppass = NULL;
889 int srp_lateuser = 0;
890 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
892 #ifndef OPENSSL_NO_CT
893 char *ctlog_file = NULL;
894 int ct_validation = 0;
896 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
898 unsigned int max_send_fragment = 0;
899 unsigned int split_send_fragment = 0, max_pipelines = 0;
900 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
902 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
903 int c_tlsextdebug = 0;
904 #ifndef OPENSSL_NO_OCSP
905 int c_status_req = 0;
907 BIO *bio_c_msg = NULL;
908 const char *keylog_file = NULL, *early_data_file = NULL;
909 #ifndef OPENSSL_NO_DTLS
915 /* Known false-positive of MemorySanitizer. */
916 #if defined(__has_feature)
917 # if __has_feature(memory_sanitizer)
918 __msan_unpoison(&readfds, sizeof(readfds));
919 __msan_unpoison(&writefds, sizeof(writefds));
923 prog = opt_progname(argv[0]);
928 vpm = X509_VERIFY_PARAM_new();
929 cctx = SSL_CONF_CTX_new();
931 if (vpm == NULL || cctx == NULL) {
932 BIO_printf(bio_err, "%s: out of memory\n", prog);
936 cbuf = app_malloc(BUFSIZZ, "cbuf");
937 sbuf = app_malloc(BUFSIZZ, "sbuf");
938 mbuf = app_malloc(BUFSIZZ, "mbuf");
940 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
942 prog = opt_init(argc, argv, s_client_options);
943 while ((o = opt_next()) != OPT_EOF) {
944 /* Check for intermixing flags. */
945 if (connect_type == use_unix && IS_INET_FLAG(o)) {
947 "%s: Intermixed protocol flags (unix and internet domains)\n",
951 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
953 "%s: Intermixed protocol flags (internet and unix domains)\n",
958 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
959 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
962 if (IS_NO_PROT_FLAG(o))
964 if (prot_opt == 1 && no_prot_opt) {
966 "Cannot supply both a protocol flag and '-no_<prot>'\n");
974 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
977 opt_help(s_client_options);
981 connect_type = use_inet;
982 socket_family = AF_INET;
987 connect_type = use_inet;
988 socket_family = AF_INET6;
993 connect_type = use_inet;
994 freeandcopy(&host, opt_arg());
997 connect_type = use_inet;
998 freeandcopy(&port, opt_arg());
1001 connect_type = use_inet;
1002 freeandcopy(&connectstr, opt_arg());
1005 proxystr = opt_arg();
1006 starttls_proto = PROTO_CONNECT;
1010 connect_type = use_unix;
1011 socket_family = AF_UNIX;
1012 freeandcopy(&host, opt_arg());
1016 xmpphost = opt_arg();
1022 verify = SSL_VERIFY_PEER;
1023 verify_args.depth = atoi(opt_arg());
1025 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1028 cert_file = opt_arg();
1031 if (!set_nameopt(opt_arg()))
1035 crl_file = opt_arg();
1037 case OPT_CRL_DOWNLOAD:
1041 sess_out = opt_arg();
1044 sess_in = opt_arg();
1047 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1051 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1054 case OPT_VERIFY_RET_ERROR:
1055 verify_args.return_error = 1;
1057 case OPT_VERIFY_QUIET:
1058 verify_args.quiet = 1;
1061 c_brief = verify_args.quiet = c_quiet = 1;
1064 if (ssl_args == NULL)
1065 ssl_args = sk_OPENSSL_STRING_new_null();
1066 if (ssl_args == NULL
1067 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1068 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1069 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1074 if (!opt_verify(o, vpm))
1079 if (!args_excert(o, &exc))
1089 c_quiet = c_ign_eof = 1;
1098 e = setup_engine(opt_arg(), 1);
1100 case OPT_SSL_CLIENT_ENGINE:
1101 #ifndef OPENSSL_NO_ENGINE
1102 ssl_client_engine = ENGINE_by_id(opt_arg());
1103 if (ssl_client_engine == NULL) {
1104 BIO_printf(bio_err, "Error getting client auth engine\n");
1115 case OPT_NO_IGN_EOF:
1121 case OPT_TLSEXTDEBUG:
1125 #ifndef OPENSSL_NO_OCSP
1138 bio_c_msg = BIO_new_file(opt_arg(), "w");
1141 #ifndef OPENSSL_NO_SSL_TRACE
1145 case OPT_SECURITY_DEBUG:
1148 case OPT_SECURITY_DEBUG_VERBOSE:
1160 #ifndef OPENSSL_NO_PSK
1161 case OPT_PSK_IDENTITY:
1162 psk_identity = opt_arg();
1165 for (p = psk_key = opt_arg(); *p; p++) {
1166 if (isxdigit(_UC(*p)))
1168 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1173 #ifndef OPENSSL_NO_SRP
1175 srp_arg.srplogin = opt_arg();
1176 if (min_version < TLS1_VERSION)
1177 min_version = TLS1_VERSION;
1180 srppass = opt_arg();
1181 if (min_version < TLS1_VERSION)
1182 min_version = TLS1_VERSION;
1184 case OPT_SRP_STRENGTH:
1185 srp_arg.strength = atoi(opt_arg());
1186 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1188 if (min_version < TLS1_VERSION)
1189 min_version = TLS1_VERSION;
1191 case OPT_SRP_LATEUSER:
1193 if (min_version < TLS1_VERSION)
1194 min_version = TLS1_VERSION;
1196 case OPT_SRP_MOREGROUPS:
1198 if (min_version < TLS1_VERSION)
1199 min_version = TLS1_VERSION;
1202 case OPT_SSL_CONFIG:
1203 ssl_config = opt_arg();
1206 min_version = SSL3_VERSION;
1207 max_version = SSL3_VERSION;
1210 min_version = TLS1_3_VERSION;
1211 max_version = TLS1_3_VERSION;
1214 min_version = TLS1_2_VERSION;
1215 max_version = TLS1_2_VERSION;
1218 min_version = TLS1_1_VERSION;
1219 max_version = TLS1_1_VERSION;
1222 min_version = TLS1_VERSION;
1223 max_version = TLS1_VERSION;
1226 #ifndef OPENSSL_NO_DTLS
1227 meth = DTLS_client_method();
1228 socket_type = SOCK_DGRAM;
1233 #ifndef OPENSSL_NO_DTLS1
1234 meth = DTLS_client_method();
1235 min_version = DTLS1_VERSION;
1236 max_version = DTLS1_VERSION;
1237 socket_type = SOCK_DGRAM;
1242 #ifndef OPENSSL_NO_DTLS1_2
1243 meth = DTLS_client_method();
1244 min_version = DTLS1_2_VERSION;
1245 max_version = DTLS1_2_VERSION;
1246 socket_type = SOCK_DGRAM;
1251 #ifndef OPENSSL_NO_SCTP
1252 protocol = IPPROTO_SCTP;
1256 #ifndef OPENSSL_NO_DTLS
1257 enable_timeouts = 1;
1261 #ifndef OPENSSL_NO_DTLS
1262 socket_mtu = atol(opt_arg());
1265 case OPT_FALLBACKSCSV:
1269 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1273 passarg = opt_arg();
1275 case OPT_CERT_CHAIN:
1276 chain_file = opt_arg();
1279 key_file = opt_arg();
1290 case OPT_CHAINCAPATH:
1291 chCApath = opt_arg();
1293 case OPT_VERIFYCAPATH:
1294 vfyCApath = opt_arg();
1296 case OPT_BUILD_CHAIN:
1300 ReqCAfile = opt_arg();
1308 #ifndef OPENSSL_NO_CT
1315 case OPT_CTLOG_FILE:
1316 ctlog_file = opt_arg();
1319 case OPT_CHAINCAFILE:
1320 chCAfile = opt_arg();
1322 case OPT_VERIFYCAFILE:
1323 vfyCAfile = opt_arg();
1325 case OPT_DANE_TLSA_DOMAIN:
1326 dane_tlsa_domain = opt_arg();
1328 case OPT_DANE_TLSA_RRDATA:
1329 if (dane_tlsa_rrset == NULL)
1330 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1331 if (dane_tlsa_rrset == NULL ||
1332 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1333 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1337 case OPT_DANE_EE_NO_NAME:
1338 dane_ee_no_name = 1;
1340 case OPT_NEXTPROTONEG:
1341 #ifndef OPENSSL_NO_NEXTPROTONEG
1342 next_proto_neg_in = opt_arg();
1346 alpn_in = opt_arg();
1348 case OPT_SERVERINFO:
1351 for (start = 0, i = 0; i <= len; ++i) {
1352 if (i == len || p[i] == ',') {
1353 serverinfo_types[serverinfo_count] = atoi(p + start);
1354 if (++serverinfo_count == MAX_SI_TYPES)
1361 if (!opt_pair(opt_arg(), services, &starttls_proto))
1364 case OPT_SERVERNAME:
1365 servername = opt_arg();
1367 case OPT_NOSERVERNAME:
1371 srtp_profiles = opt_arg();
1373 case OPT_KEYMATEXPORT:
1374 keymatexportlabel = opt_arg();
1376 case OPT_KEYMATEXPORTLEN:
1377 keymatexportlen = atoi(opt_arg());
1382 case OPT_MAX_SEND_FRAG:
1383 max_send_fragment = atoi(opt_arg());
1385 case OPT_SPLIT_SEND_FRAG:
1386 split_send_fragment = atoi(opt_arg());
1388 case OPT_MAX_PIPELINES:
1389 max_pipelines = atoi(opt_arg());
1392 read_buf_len = atoi(opt_arg());
1394 case OPT_KEYLOG_FILE:
1395 keylog_file = opt_arg();
1397 case OPT_EARLY_DATA:
1398 early_data_file = opt_arg();
1402 if (count4or6 >= 2) {
1403 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1407 if (servername != NULL) {
1409 "%s: Can't use -servername and -noservername together\n",
1413 if (dane_tlsa_domain != NULL) {
1415 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1420 argc = opt_num_rest();
1426 char *tmp_host = host, *tmp_port = port;
1427 if (connectstr == NULL) {
1428 BIO_printf(bio_err, "%s: -proxy requires use of -connect\n", prog);
1431 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1432 if (tmp_host != host)
1433 OPENSSL_free(tmp_host);
1434 if (tmp_port != port)
1435 OPENSSL_free(tmp_port);
1438 "%s: -proxy argument malformed or ambiguous\n", prog);
1443 char *tmp_host = host, *tmp_port = port;
1444 if (connectstr != NULL)
1445 res = BIO_parse_hostserv(connectstr, &host, &port,
1446 BIO_PARSE_PRIO_HOST);
1447 if (tmp_host != host)
1448 OPENSSL_free(tmp_host);
1449 if (tmp_port != port)
1450 OPENSSL_free(tmp_port);
1453 "%s: -connect argument malformed or ambiguous\n",
1459 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1461 "Can't use unix sockets and datagrams together\n");
1465 #ifndef OPENSSL_NO_SCTP
1466 if (protocol == IPPROTO_SCTP) {
1467 if (socket_type != SOCK_DGRAM) {
1468 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1471 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1472 socket_type = SOCK_STREAM;
1476 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1477 next_proto.status = -1;
1478 if (next_proto_neg_in) {
1480 next_protos_parse(&next_proto.len, next_proto_neg_in);
1481 if (next_proto.data == NULL) {
1482 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1486 next_proto.data = NULL;
1489 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1490 BIO_printf(bio_err, "Error getting password\n");
1494 if (key_file == NULL)
1495 key_file = cert_file;
1498 key = load_key(key_file, key_format, 0, pass, e,
1499 "client certificate private key file");
1501 ERR_print_errors(bio_err);
1507 cert = load_cert(cert_file, cert_format, "client certificate file");
1509 ERR_print_errors(bio_err);
1515 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1516 "client certificate chain"))
1522 crl = load_crl(crl_file, crl_format);
1524 BIO_puts(bio_err, "Error loading CRL\n");
1525 ERR_print_errors(bio_err);
1528 crls = sk_X509_CRL_new_null();
1529 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1530 BIO_puts(bio_err, "Error adding CRL\n");
1531 ERR_print_errors(bio_err);
1537 if (!load_excert(&exc))
1540 if (!app_RAND_load_file(NULL, 1) && inrand == NULL
1541 && !RAND_status()) {
1543 "warning, not much extra random data, consider using the -rand option\n");
1545 if (inrand != NULL) {
1546 randamt = app_RAND_load_files(inrand);
1547 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", randamt);
1550 if (bio_c_out == NULL) {
1551 if (c_quiet && !c_debug) {
1552 bio_c_out = BIO_new(BIO_s_null());
1553 if (c_msg && !bio_c_msg)
1554 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1555 } else if (bio_c_out == NULL)
1556 bio_c_out = dup_bio_out(FORMAT_TEXT);
1558 #ifndef OPENSSL_NO_SRP
1559 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1560 BIO_printf(bio_err, "Error getting password\n");
1565 ctx = SSL_CTX_new(meth);
1567 ERR_print_errors(bio_err);
1572 ssl_ctx_security_debug(ctx, sdebug);
1575 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1576 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1578 ERR_print_errors(bio_err);
1583 if (SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1585 if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1588 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1589 BIO_printf(bio_err, "Error setting verify params\n");
1590 ERR_print_errors(bio_err);
1595 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1598 if (max_send_fragment > 0
1599 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1600 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1601 prog, max_send_fragment);
1605 if (split_send_fragment > 0
1606 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1607 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1608 prog, split_send_fragment);
1612 if (max_pipelines > 0
1613 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1614 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1615 prog, max_pipelines);
1619 if (read_buf_len > 0) {
1620 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1623 if (!config_ctx(cctx, ssl_args, ctx))
1626 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1627 crls, crl_download)) {
1628 BIO_printf(bio_err, "Error loading store locations\n");
1629 ERR_print_errors(bio_err);
1632 if (ReqCAfile != NULL) {
1633 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1635 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1636 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1637 BIO_printf(bio_err, "Error loading CA names\n");
1638 ERR_print_errors(bio_err);
1641 SSL_CTX_set0_CA_list(ctx, nm);
1643 #ifndef OPENSSL_NO_ENGINE
1644 if (ssl_client_engine) {
1645 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1646 BIO_puts(bio_err, "Error setting client auth engine\n");
1647 ERR_print_errors(bio_err);
1648 ENGINE_free(ssl_client_engine);
1651 ENGINE_free(ssl_client_engine);
1655 #ifndef OPENSSL_NO_PSK
1656 if (psk_key != NULL) {
1658 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1659 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1662 #ifndef OPENSSL_NO_SRTP
1663 if (srtp_profiles != NULL) {
1664 /* Returns 0 on success! */
1665 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1666 BIO_printf(bio_err, "Error setting SRTP profile\n");
1667 ERR_print_errors(bio_err);
1674 ssl_ctx_set_excert(ctx, exc);
1676 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1677 if (next_proto.data)
1678 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1682 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1685 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1688 /* Returns 0 on success! */
1689 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1690 BIO_printf(bio_err, "Error setting ALPN\n");
1696 for (i = 0; i < serverinfo_count; i++) {
1697 if (!SSL_CTX_add_client_custom_ext(ctx,
1698 serverinfo_types[i],
1700 serverinfo_cli_parse_cb, NULL)) {
1702 "Warning: Unable to add custom extension %u, skipping\n",
1703 serverinfo_types[i]);
1708 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1710 #ifndef OPENSSL_NO_CT
1711 /* Enable SCT processing, without early connection termination */
1712 if (ct_validation &&
1713 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1714 ERR_print_errors(bio_err);
1718 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1719 if (ct_validation) {
1720 ERR_print_errors(bio_err);
1725 * If CT validation is not enabled, the log list isn't needed so don't
1726 * show errors or abort. We try to load it regardless because then we
1727 * can show the names of the logs any SCTs came from (SCTs may be seen
1728 * even with validation disabled).
1734 SSL_CTX_set_verify(ctx, verify, verify_callback);
1736 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1737 ERR_print_errors(bio_err);
1741 ssl_ctx_add_crls(ctx, crls, crl_download);
1743 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1746 if (!noservername) {
1747 tlsextcbp.biodebug = bio_err;
1748 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1749 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1751 # ifndef OPENSSL_NO_SRP
1752 if (srp_arg.srplogin) {
1753 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1754 BIO_printf(bio_err, "Unable to set SRP username\n");
1757 srp_arg.msg = c_msg;
1758 srp_arg.debug = c_debug;
1759 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1760 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1761 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1762 if (c_msg || c_debug || srp_arg.amp == 0)
1763 SSL_CTX_set_srp_verify_param_callback(ctx,
1764 ssl_srp_verify_param_cb);
1768 if (dane_tlsa_domain != NULL) {
1769 if (SSL_CTX_dane_enable(ctx) <= 0) {
1771 "%s: Error enabling DANE TLSA authentication.\n",
1773 ERR_print_errors(bio_err);
1779 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1780 * come at any time. Therefore we use a callback to write out the session
1781 * when we know about it. This approach works for < TLSv1.3 as well.
1784 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1785 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1786 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1789 if (set_keylog_file(ctx, keylog_file))
1795 BIO *stmp = BIO_new_file(sess_in, "r");
1797 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1798 ERR_print_errors(bio_err);
1801 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1804 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1805 ERR_print_errors(bio_err);
1808 if (!SSL_set_session(con, sess)) {
1809 BIO_printf(bio_err, "Can't set session\n");
1810 ERR_print_errors(bio_err);
1813 SSL_SESSION_free(sess);
1817 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
1819 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
1820 if (servername == NULL)
1821 servername = (host == NULL) ? "localhost" : host;
1822 if (!SSL_set_tlsext_host_name(con, servername)) {
1823 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
1824 ERR_print_errors(bio_err);
1829 if (dane_tlsa_domain != NULL) {
1830 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
1831 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
1832 "authentication.\n", prog);
1833 ERR_print_errors(bio_err);
1836 if (dane_tlsa_rrset == NULL) {
1837 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
1838 "least one -dane_tlsa_rrdata option.\n", prog);
1841 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
1842 BIO_printf(bio_err, "%s: Failed to import any TLSA "
1843 "records.\n", prog);
1846 if (dane_ee_no_name)
1847 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
1848 } else if (dane_tlsa_rrset != NULL) {
1849 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
1850 "-dane_tlsa_domain option.\n", prog);
1855 if (init_client(&s, host, port, socket_family, socket_type, protocol)
1857 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
1861 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
1864 if (!BIO_socket_nbio(s, 1)) {
1865 ERR_print_errors(bio_err);
1868 BIO_printf(bio_c_out, "Turned on non blocking io\n");
1870 #ifndef OPENSSL_NO_DTLS
1872 union BIO_sock_info_u peer_info;
1874 #ifndef OPENSSL_NO_SCTP
1875 if (protocol == IPPROTO_SCTP)
1876 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
1879 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
1881 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
1882 BIO_printf(bio_err, "memory allocation failure\n");
1886 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
1887 BIO_printf(bio_err, "getsockname:errno=%d\n",
1888 get_last_socket_error());
1889 BIO_ADDR_free(peer_info.addr);
1894 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
1895 BIO_ADDR_free(peer_info.addr);
1896 peer_info.addr = NULL;
1898 if (enable_timeouts) {
1900 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1901 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1904 timeout.tv_usec = DGRAM_SND_TIMEOUT;
1905 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1909 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
1910 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
1911 DTLS_get_link_min_mtu(con));
1915 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1916 if (!DTLS_set_link_mtu(con, socket_mtu)) {
1917 BIO_printf(bio_err, "Failed to set MTU\n");
1922 /* want to do MTU discovery */
1923 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1925 #endif /* OPENSSL_NO_DTLS */
1926 sbio = BIO_new_socket(s, BIO_NOCLOSE);
1931 test = BIO_new(BIO_f_nbio_test());
1932 sbio = BIO_push(test, sbio);
1936 BIO_set_callback(sbio, bio_dump_callback);
1937 BIO_set_callback_arg(sbio, (char *)bio_c_out);
1940 #ifndef OPENSSL_NO_SSL_TRACE
1942 SSL_set_msg_callback(con, SSL_trace);
1945 SSL_set_msg_callback(con, msg_cb);
1946 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
1949 if (c_tlsextdebug) {
1950 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1951 SSL_set_tlsext_debug_arg(con, bio_c_out);
1953 #ifndef OPENSSL_NO_OCSP
1955 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
1956 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
1957 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
1961 SSL_set_bio(con, sbio, sbio);
1962 SSL_set_connect_state(con);
1964 /* ok, lets connect */
1965 if (fileno_stdin() > SSL_get_fd(con))
1966 width = fileno_stdin() + 1;
1968 width = SSL_get_fd(con) + 1;
1981 switch ((PROTOCOL_CHOICE) starttls_proto) {
1988 * This is an ugly hack that does a lot of assumptions. We do
1989 * have to handle multi-line responses which may come in a single
1990 * packet or not. We therefore have to use BIO_gets() which does
1991 * need a buffering BIO. So during the initial chitchat we do
1992 * push a buffering BIO into the chain that is removed again
1993 * later on to not disturb the rest of the s_client operation.
1996 BIO *fbio = BIO_new(BIO_f_buffer());
1998 BIO_push(fbio, sbio);
1999 /* Wait for multi-line response to end from LMTP or SMTP */
2001 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2002 } while (mbuf_len > 3 && mbuf[3] == '-');
2003 if (starttls_proto == (int)PROTO_LMTP)
2004 BIO_printf(fbio, "LHLO %s\r\n", ehlo);
2006 BIO_printf(fbio, "EHLO %s\r\n", ehlo);
2007 (void)BIO_flush(fbio);
2009 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2013 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2014 if (strstr(mbuf, "STARTTLS"))
2016 } while (mbuf_len > 3 && mbuf[3] == '-');
2017 (void)BIO_flush(fbio);
2022 "Didn't find STARTTLS in server response,"
2023 " trying anyway...\n");
2024 BIO_printf(sbio, "STARTTLS\r\n");
2025 BIO_read(sbio, sbuf, BUFSIZZ);
2030 BIO_read(sbio, mbuf, BUFSIZZ);
2031 BIO_printf(sbio, "STLS\r\n");
2032 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2034 BIO_printf(bio_err, "BIO_read failed\n");
2042 BIO *fbio = BIO_new(BIO_f_buffer());
2044 BIO_push(fbio, sbio);
2045 BIO_gets(fbio, mbuf, BUFSIZZ);
2046 /* STARTTLS command requires CAPABILITY... */
2047 BIO_printf(fbio, ". CAPABILITY\r\n");
2048 (void)BIO_flush(fbio);
2049 /* wait for multi-line CAPABILITY response */
2051 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2052 if (strstr(mbuf, "STARTTLS"))
2055 while (mbuf_len > 3 && mbuf[0] != '.');
2056 (void)BIO_flush(fbio);
2061 "Didn't find STARTTLS in server response,"
2062 " trying anyway...\n");
2063 BIO_printf(sbio, ". STARTTLS\r\n");
2064 BIO_read(sbio, sbuf, BUFSIZZ);
2069 BIO *fbio = BIO_new(BIO_f_buffer());
2071 BIO_push(fbio, sbio);
2072 /* wait for multi-line response to end from FTP */
2074 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2076 while (mbuf_len > 3 && mbuf[3] == '-');
2077 (void)BIO_flush(fbio);
2080 BIO_printf(sbio, "AUTH TLS\r\n");
2081 BIO_read(sbio, sbuf, BUFSIZZ);
2085 case PROTO_XMPP_SERVER:
2088 BIO_printf(sbio, "<stream:stream "
2089 "xmlns:stream='http://etherx.jabber.org/streams' "
2090 "xmlns='jabber:%s' to='%s' version='1.0'>",
2091 starttls_proto == PROTO_XMPP ? "client" : "server",
2092 xmpphost ? xmpphost : host);
2093 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2095 BIO_printf(bio_err, "BIO_read failed\n");
2100 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2102 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2104 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2112 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2113 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2115 BIO_printf(bio_err, "BIO_read failed\n");
2119 if (!strstr(sbuf, "<proceed"))
2126 static const unsigned char tls_do[] = {
2127 /* IAC DO START_TLS */
2130 static const unsigned char tls_will[] = {
2131 /* IAC WILL START_TLS */
2134 static const unsigned char tls_follows[] = {
2135 /* IAC SB START_TLS FOLLOWS IAC SE */
2136 255, 250, 46, 1, 255, 240
2140 /* Telnet server should demand we issue START_TLS */
2141 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2142 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2144 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2145 BIO_write(sbio, tls_will, 3);
2146 BIO_write(sbio, tls_follows, 6);
2147 (void)BIO_flush(sbio);
2148 /* Telnet server also sent the FOLLOWS sub-command */
2149 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2150 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2157 error_proto, /* Wrong protocol, not even HTTP */
2158 error_connect, /* CONNECT failed */
2160 } foundit = error_connect;
2161 BIO *fbio = BIO_new(BIO_f_buffer());
2163 BIO_push(fbio, sbio);
2164 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr);
2165 (void)BIO_flush(fbio);
2167 * The first line is the HTTP response. According to RFC 7230,
2168 * it's formated exactly like this:
2170 * HTTP/d.d ddd Reason text\r\n
2172 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2173 if (mbuf[8] != ' ') {
2175 "%s: HTTP CONNECT failed, incorrect response "
2176 "from proxy\n", prog);
2177 foundit = error_proto;
2178 } else if (mbuf[9] != '2') {
2179 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2184 if (foundit != error_proto) {
2185 /* Read past all following headers */
2187 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2188 } while (mbuf_len > 2);
2190 (void)BIO_flush(fbio);
2193 if (foundit != success) {
2201 BIO *fbio = BIO_new(BIO_f_buffer());
2203 BIO_push(fbio, sbio);
2204 BIO_printf(fbio, "STARTTLS\r\n");
2205 (void)BIO_flush(fbio);
2206 width = SSL_get_fd(con) + 1;
2212 openssl_fdset(SSL_get_fd(con), &readfds);
2213 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2214 timeout.tv_usec = 0;
2216 * If the IRCd doesn't respond within
2217 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2218 * it doesn't support STARTTLS. Many IRCds
2219 * will not give _any_ sort of response to a
2220 * STARTTLS command when it's not supported.
2222 if (!BIO_get_buffer_num_lines(fbio)
2223 && !BIO_pending(fbio)
2224 && !BIO_pending(sbio)
2225 && select(width, (void *)&readfds, NULL, NULL,
2228 "Timeout waiting for response (%d seconds).\n",
2229 S_CLIENT_IRC_READ_TIMEOUT);
2233 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2234 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2236 /* :example.net 451 STARTTLS :You have not registered */
2237 /* :example.net 421 STARTTLS :Unknown command */
2238 if ((numeric == 451 || numeric == 421)
2239 && strstr(mbuf, "STARTTLS") != NULL) {
2240 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2243 if (numeric == 691) {
2244 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2245 ERR_print_errors(bio_err);
2248 } while (numeric != 670);
2250 (void)BIO_flush(fbio);
2253 if (numeric != 670) {
2254 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2260 case PROTO_POSTGRES:
2262 static const unsigned char ssl_request[] = {
2263 /* Length SSLRequest */
2264 0, 0, 0, 8, 4, 210, 22, 47
2268 /* Send SSLRequest packet */
2269 BIO_write(sbio, ssl_request, 8);
2270 (void)BIO_flush(sbio);
2272 /* Reply will be a single S if SSL is enabled */
2273 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2274 if (bytes != 1 || sbuf[0] != 'S')
2281 BIO *fbio = BIO_new(BIO_f_buffer());
2283 BIO_push(fbio, sbio);
2284 BIO_gets(fbio, mbuf, BUFSIZZ);
2285 /* STARTTLS command requires CAPABILITIES... */
2286 BIO_printf(fbio, "CAPABILITIES\r\n");
2287 (void)BIO_flush(fbio);
2288 /* wait for multi-line CAPABILITIES response */
2290 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2291 if (strstr(mbuf, "STARTTLS"))
2293 } while (mbuf_len > 1 && mbuf[0] != '.');
2294 (void)BIO_flush(fbio);
2299 "Didn't find STARTTLS in server response,"
2300 " trying anyway...\n");
2301 BIO_printf(sbio, "STARTTLS\r\n");
2302 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2304 BIO_printf(bio_err, "BIO_read failed\n");
2307 mbuf[mbuf_len] = '\0';
2308 if (strstr(mbuf, "382") == NULL) {
2309 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2317 BIO *fbio = BIO_new(BIO_f_buffer());
2319 BIO_push(fbio, sbio);
2320 /* wait for multi-line response to end from Sieve */
2322 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2324 * According to RFC 5804 § 1.7, capability
2325 * is case-insensitive, make it uppercase
2327 if (mbuf_len > 1 && mbuf[0] == '"') {
2328 make_uppercase(mbuf);
2329 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2332 } while (mbuf_len > 1 && mbuf[0] == '"');
2333 (void)BIO_flush(fbio);
2338 "Didn't find STARTTLS in server response,"
2339 " trying anyway...\n");
2340 BIO_printf(sbio, "STARTTLS\r\n");
2341 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2343 BIO_printf(bio_err, "BIO_read failed\n");
2346 mbuf[mbuf_len] = '\0';
2348 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2352 * According to RFC 5804 § 2.2, response codes are case-
2353 * insensitive, make it uppercase but preserve the response.
2355 strncpy(sbuf, mbuf, 2);
2356 make_uppercase(sbuf);
2357 if (strncmp(sbuf, "OK", 2) != 0) {
2358 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2365 /* StartTLS Operation according to RFC 4511 */
2366 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2368 "messageID=INTEGER:1\n"
2369 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2370 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2372 char *genstr = NULL;
2374 ASN1_TYPE *atyp = NULL;
2375 BIO *ldapbio = BIO_new(BIO_s_mem());
2376 CONF *cnf = NCONF_new(NULL);
2382 BIO_puts(ldapbio, ldap_tls_genconf);
2383 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2387 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2390 BIO_printf(bio_err, "Error on line %ld\n", errline);
2395 genstr = NCONF_get_string(cnf, "default", "asn1");
2396 if (genstr == NULL) {
2398 BIO_printf(bio_err, "NCONF_get_string failed\n");
2401 atyp = ASN1_generate_nconf(genstr, cnf);
2404 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2409 /* Send SSLRequest packet */
2410 BIO_write(sbio, atyp->value.sequence->data,
2411 atyp->value.sequence->length);
2412 (void)BIO_flush(sbio);
2413 ASN1_TYPE_free(atyp);
2415 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2417 BIO_printf(bio_err, "BIO_read failed\n");
2420 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2422 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2424 } else if (result > 0) {
2425 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2434 if (early_data_file != NULL
2435 && SSL_get0_session(con) != NULL
2436 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0) {
2437 BIO *edfile = BIO_new_file(early_data_file, "r");
2438 size_t readbytes, writtenbytes;
2441 if (edfile == NULL) {
2442 BIO_printf(bio_err, "Cannot open early data file\n");
2447 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2450 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2451 switch (SSL_get_error(con, 0)) {
2452 case SSL_ERROR_WANT_WRITE:
2453 case SSL_ERROR_WANT_ASYNC:
2454 case SSL_ERROR_WANT_READ:
2455 /* Just keep trying - busy waiting */
2458 BIO_printf(bio_err, "Error writing early data\n");
2472 if ((SSL_version(con) == DTLS1_VERSION) &&
2473 DTLSv1_get_timeout(con, &timeout))
2474 timeoutp = &timeout;
2478 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2479 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2488 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2489 print_ssl_summary(con);
2492 print_stuff(bio_c_out, con, full_log);
2496 if (starttls_proto) {
2497 BIO_write(bio_err, mbuf, mbuf_len);
2498 /* We don't need to know any more */
2500 starttls_proto = PROTO_OFF;
2505 BIO_printf(bio_c_out,
2506 "drop connection and then reconnect\n");
2507 do_ssl_shutdown(con);
2508 SSL_set_connect_state(con);
2509 BIO_closesocket(SSL_get_fd(con));
2515 ssl_pending = read_ssl && SSL_has_pending(con);
2518 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2521 * Note that select() returns when read _would not block_,
2522 * and EOF satisfies that. To avoid a CPU-hogging loop,
2523 * set the flag so we exit.
2525 if (read_tty && !at_eof)
2526 openssl_fdset(fileno_stdin(), &readfds);
2527 #if !defined(OPENSSL_SYS_VMS)
2529 openssl_fdset(fileno_stdout(), &writefds);
2533 openssl_fdset(SSL_get_fd(con), &readfds);
2535 openssl_fdset(SSL_get_fd(con), &writefds);
2537 if (!tty_on || !write_tty) {
2539 openssl_fdset(SSL_get_fd(con), &readfds);
2541 openssl_fdset(SSL_get_fd(con), &writefds);
2546 * Note: under VMS with SOCKETSHR the second parameter is
2547 * currently of type (int *) whereas under other systems it is
2548 * (void *) if you don't have a cast it will choke the compiler:
2549 * if you do have a cast then you can either go for (int *) or
2552 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2554 * Under Windows/DOS we make the assumption that we can always
2555 * write to the tty: therefore if we need to write to the tty we
2556 * just fall through. Otherwise we timeout the select every
2557 * second and see if there are any keypresses. Note: this is a
2558 * hack, in a proper Windows application we wouldn't do this.
2565 i = select(width, (void *)&readfds, (void *)&writefds,
2567 if (!i && (!has_stdin_waiting() || !read_tty))
2570 i = select(width, (void *)&readfds, (void *)&writefds,
2574 i = select(width, (void *)&readfds, (void *)&writefds,
2578 BIO_printf(bio_err, "bad select %d\n",
2579 get_last_socket_error());
2584 if ((SSL_version(con) == DTLS1_VERSION)
2585 && DTLSv1_handle_timeout(con) > 0) {
2586 BIO_printf(bio_err, "TIMEOUT occurred\n");
2589 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2590 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2591 switch (SSL_get_error(con, k)) {
2592 case SSL_ERROR_NONE:
2597 /* we have done a write(con,NULL,0); */
2598 if (cbuf_len <= 0) {
2601 } else { /* if (cbuf_len > 0) */
2607 case SSL_ERROR_WANT_WRITE:
2608 BIO_printf(bio_c_out, "write W BLOCK\n");
2612 case SSL_ERROR_WANT_ASYNC:
2613 BIO_printf(bio_c_out, "write A BLOCK\n");
2614 wait_for_async(con);
2618 case SSL_ERROR_WANT_READ:
2619 BIO_printf(bio_c_out, "write R BLOCK\n");
2624 case SSL_ERROR_WANT_X509_LOOKUP:
2625 BIO_printf(bio_c_out, "write X BLOCK\n");
2627 case SSL_ERROR_ZERO_RETURN:
2628 if (cbuf_len != 0) {
2629 BIO_printf(bio_c_out, "shutdown\n");
2638 case SSL_ERROR_SYSCALL:
2639 if ((k != 0) || (cbuf_len != 0)) {
2640 BIO_printf(bio_err, "write:errno=%d\n",
2641 get_last_socket_error());
2648 case SSL_ERROR_WANT_ASYNC_JOB:
2649 /* This shouldn't ever happen in s_client - treat as an error */
2651 ERR_print_errors(bio_err);
2655 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2656 /* Assume Windows/DOS/BeOS can always write */
2657 else if (!ssl_pending && write_tty)
2659 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2662 #ifdef CHARSET_EBCDIC
2663 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2665 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2668 BIO_printf(bio_c_out, "DONE\n");
2675 if (sbuf_len <= 0) {
2679 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
2684 SSL_renegotiate(con);
2689 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
2691 switch (SSL_get_error(con, k)) {
2692 case SSL_ERROR_NONE:
2701 case SSL_ERROR_WANT_ASYNC:
2702 BIO_printf(bio_c_out, "read A BLOCK\n");
2703 wait_for_async(con);
2706 if ((read_tty == 0) && (write_ssl == 0))
2709 case SSL_ERROR_WANT_WRITE:
2710 BIO_printf(bio_c_out, "read W BLOCK\n");
2714 case SSL_ERROR_WANT_READ:
2715 BIO_printf(bio_c_out, "read R BLOCK\n");
2718 if ((read_tty == 0) && (write_ssl == 0))
2721 case SSL_ERROR_WANT_X509_LOOKUP:
2722 BIO_printf(bio_c_out, "read X BLOCK\n");
2724 case SSL_ERROR_SYSCALL:
2725 ret = get_last_socket_error();
2727 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
2729 BIO_printf(bio_err, "read:errno=%d\n", ret);
2731 case SSL_ERROR_ZERO_RETURN:
2732 BIO_printf(bio_c_out, "closed\n");
2735 case SSL_ERROR_WANT_ASYNC_JOB:
2736 /* This shouldn't ever happen in s_client. Treat as an error */
2738 ERR_print_errors(bio_err);
2742 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
2743 #if defined(OPENSSL_SYS_MSDOS)
2744 else if (has_stdin_waiting())
2746 else if (FD_ISSET(fileno_stdin(), &readfds))
2752 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
2754 /* both loops are skipped when i <= 0 */
2755 for (j = 0; j < i; j++)
2756 if (cbuf[j] == '\n')
2758 for (j = i - 1; j >= 0; j--) {
2759 cbuf[j + lf_num] = cbuf[j];
2760 if (cbuf[j] == '\n') {
2763 cbuf[j + lf_num] = '\r';
2766 assert(lf_num == 0);
2768 i = raw_read_stdin(cbuf, BUFSIZZ);
2769 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2774 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
2775 BIO_printf(bio_err, "DONE\n");
2780 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
2781 BIO_printf(bio_err, "RENEGOTIATING\n");
2782 SSL_renegotiate(con);
2786 if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
2788 BIO_printf(bio_err, "KEYUPDATE\n");
2790 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
2791 : SSL_KEY_UPDATE_NOT_REQUESTED);
2794 #ifndef OPENSSL_NO_HEARTBEATS
2795 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
2796 BIO_printf(bio_err, "HEARTBEATING\n");
2804 #ifdef CHARSET_EBCDIC
2805 ebcdic2ascii(cbuf, cbuf, i);
2817 print_stuff(bio_c_out, con, full_log);
2818 do_ssl_shutdown(con);
2819 #if defined(OPENSSL_SYS_WINDOWS)
2821 * Give the socket time to send its last data before we close it.
2822 * No amount of setting SO_LINGER etc on the socket seems to persuade
2823 * Windows to send the data before closing the socket...but sleeping
2824 * for a short time seems to do it (units in ms)
2825 * TODO: Find a better way to do this
2829 BIO_closesocket(SSL_get_fd(con));
2833 print_stuff(bio_c_out, con, 1);
2836 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2837 OPENSSL_free(next_proto.data);
2840 set_keylog_file(NULL, NULL);
2842 sk_X509_CRL_pop_free(crls, X509_CRL_free);
2844 sk_X509_pop_free(chain, X509_free);
2846 #ifndef OPENSSL_NO_SRP
2847 OPENSSL_free(srp_arg.srppassin);
2849 OPENSSL_free(connectstr);
2852 X509_VERIFY_PARAM_free(vpm);
2853 ssl_excert_free(exc);
2854 sk_OPENSSL_STRING_free(ssl_args);
2855 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
2856 SSL_CONF_CTX_free(cctx);
2857 OPENSSL_clear_free(cbuf, BUFSIZZ);
2858 OPENSSL_clear_free(sbuf, BUFSIZZ);
2859 OPENSSL_clear_free(mbuf, BUFSIZZ);
2861 BIO_free(bio_c_out);
2863 BIO_free(bio_c_msg);
2868 static void print_stuff(BIO *bio, SSL *s, int full)
2872 const SSL_CIPHER *c;
2874 #ifndef OPENSSL_NO_COMP
2875 const COMP_METHOD *comp, *expansion;
2877 unsigned char *exportedkeymat;
2878 #ifndef OPENSSL_NO_CT
2879 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
2883 int got_a_chain = 0;
2885 sk = SSL_get_peer_cert_chain(s);
2889 BIO_printf(bio, "---\nCertificate chain\n");
2890 for (i = 0; i < sk_X509_num(sk); i++) {
2891 BIO_printf(bio, "%2d s:", i);
2892 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
2893 BIO_puts(bio, "\n");
2894 BIO_printf(bio, " i:");
2895 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
2896 BIO_puts(bio, "\n");
2898 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
2902 BIO_printf(bio, "---\n");
2903 peer = SSL_get_peer_certificate(s);
2905 BIO_printf(bio, "Server certificate\n");
2907 /* Redundant if we showed the whole chain */
2908 if (!(c_showcerts && got_a_chain))
2909 PEM_write_bio_X509(bio, peer);
2910 dump_cert_text(bio, peer);
2912 BIO_printf(bio, "no peer certificate available\n");
2914 print_ca_names(bio, s);
2916 ssl_print_sigalgs(bio, s);
2917 ssl_print_tmp_key(bio, s);
2919 #ifndef OPENSSL_NO_CT
2921 * When the SSL session is anonymous, or resumed via an abbreviated
2922 * handshake, no SCTs are provided as part of the handshake. While in
2923 * a resumed session SCTs may be present in the session's certificate,
2924 * no callbacks are invoked to revalidate these, and in any case that
2925 * set of SCTs may be incomplete. Thus it makes little sense to
2926 * attempt to display SCTs from a resumed session's certificate, and of
2927 * course none are associated with an anonymous peer.
2929 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
2930 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
2931 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
2933 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
2934 if (sct_count > 0) {
2935 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
2937 BIO_printf(bio, "---\n");
2938 for (i = 0; i < sct_count; ++i) {
2939 SCT *sct = sk_SCT_value(scts, i);
2941 BIO_printf(bio, "SCT validation status: %s\n",
2942 SCT_validation_status_string(sct));
2943 SCT_print(sct, bio, 0, log_store);
2944 if (i < sct_count - 1)
2945 BIO_printf(bio, "\n---\n");
2947 BIO_printf(bio, "\n");
2953 "---\nSSL handshake has read %ju bytes "
2954 "and written %ju bytes\n",
2955 BIO_number_read(SSL_get_rbio(s)),
2956 BIO_number_written(SSL_get_wbio(s)));
2958 print_verify_detail(s, bio);
2959 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
2960 c = SSL_get_current_cipher(s);
2961 BIO_printf(bio, "%s, Cipher is %s\n",
2962 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
2966 pktmp = X509_get0_pubkey(peer);
2967 BIO_printf(bio, "Server public key is %d bit\n",
2968 EVP_PKEY_bits(pktmp));
2970 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
2971 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
2972 #ifndef OPENSSL_NO_COMP
2973 comp = SSL_get_current_compression(s);
2974 expansion = SSL_get_current_expansion(s);
2975 BIO_printf(bio, "Compression: %s\n",
2976 comp ? SSL_COMP_get_name(comp) : "NONE");
2977 BIO_printf(bio, "Expansion: %s\n",
2978 expansion ? SSL_COMP_get_name(expansion) : "NONE");
2983 /* Print out local port of connection: useful for debugging */
2985 union BIO_sock_info_u info;
2987 sock = SSL_get_fd(s);
2988 if ((info.addr = BIO_ADDR_new()) != NULL
2989 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
2990 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
2991 ntohs(BIO_ADDR_rawport(info.addr)));
2993 BIO_ADDR_free(info.addr);
2997 #if !defined(OPENSSL_NO_NEXTPROTONEG)
2998 if (next_proto.status != -1) {
2999 const unsigned char *proto;
3000 unsigned int proto_len;
3001 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3002 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3003 BIO_write(bio, proto, proto_len);
3004 BIO_write(bio, "\n", 1);
3008 const unsigned char *proto;
3009 unsigned int proto_len;
3010 SSL_get0_alpn_selected(s, &proto, &proto_len);
3011 if (proto_len > 0) {
3012 BIO_printf(bio, "ALPN protocol: ");
3013 BIO_write(bio, proto, proto_len);
3014 BIO_write(bio, "\n", 1);
3016 BIO_printf(bio, "No ALPN negotiated\n");
3019 #ifndef OPENSSL_NO_SRTP
3021 SRTP_PROTECTION_PROFILE *srtp_profile =
3022 SSL_get_selected_srtp_profile(s);
3025 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3026 srtp_profile->name);
3030 if (SSL_version(s) == TLS1_3_VERSION) {
3031 switch (SSL_get_early_data_status(s)) {
3032 case SSL_EARLY_DATA_NOT_SENT:
3033 BIO_printf(bio, "Early data was not sent\n");
3036 case SSL_EARLY_DATA_REJECTED:
3037 BIO_printf(bio, "Early data was rejected\n");
3040 case SSL_EARLY_DATA_ACCEPTED:
3041 BIO_printf(bio, "Early data was accepted\n");
3047 SSL_SESSION_print(bio, SSL_get_session(s));
3048 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3049 BIO_printf(bio, "Keying material exporter:\n");
3050 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3051 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3052 exportedkeymat = app_malloc(keymatexportlen, "export key");
3053 if (!SSL_export_keying_material(s, exportedkeymat,
3056 strlen(keymatexportlabel),
3058 BIO_printf(bio, " Error\n");
3060 BIO_printf(bio, " Keying material: ");
3061 for (i = 0; i < keymatexportlen; i++)
3062 BIO_printf(bio, "%02X", exportedkeymat[i]);
3063 BIO_printf(bio, "\n");
3065 OPENSSL_free(exportedkeymat);
3067 BIO_printf(bio, "---\n");
3069 /* flush, or debugging output gets mixed with http response */
3070 (void)BIO_flush(bio);
3073 # ifndef OPENSSL_NO_OCSP
3074 static int ocsp_resp_cb(SSL *s, void *arg)
3076 const unsigned char *p;
3079 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3080 BIO_puts(arg, "OCSP response: ");
3082 BIO_puts(arg, "no response sent\n");
3085 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3087 BIO_puts(arg, "response parse error\n");
3088 BIO_dump_indent(arg, (char *)p, len, 4);
3091 BIO_puts(arg, "\n======================================\n");
3092 OCSP_RESPONSE_print(arg, rsp, 0);
3093 BIO_puts(arg, "======================================\n");
3094 OCSP_RESPONSE_free(rsp);
3099 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3101 const unsigned char *cur, *end;
3103 int tag, xclass, inf, ret = -1;
3105 cur = (const unsigned char *)buf;
3111 * LDAPMessage ::= SEQUENCE {
3112 * messageID MessageID,
3113 * protocolOp CHOICE {
3115 * extendedResp ExtendedResponse,
3117 * controls [0] Controls OPTIONAL }
3119 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3120 * COMPONENTS OF LDAPResult,
3121 * responseName [10] LDAPOID OPTIONAL,
3122 * responseValue [11] OCTET STRING OPTIONAL }
3124 * LDAPResult ::= SEQUENCE {
3125 * resultCode ENUMERATED {
3131 * diagnosticMessage LDAPString,
3132 * referral [3] Referral OPTIONAL }
3136 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3137 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3138 (rem = end - cur, len > rem)) {
3139 BIO_printf(bio_err, "Unexpected LDAP response\n");
3143 rem = len; /* ensure that we don't overstep the SEQUENCE */
3145 /* pull MessageID */
3146 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3147 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3148 (rem = end - cur, len > rem)) {
3149 BIO_printf(bio_err, "No MessageID\n");
3153 cur += len; /* shall we check for MessageId match or just skip? */
3155 /* pull [APPLICATION 24] */
3157 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3158 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3160 BIO_printf(bio_err, "Not ExtendedResponse\n");
3164 /* pull resultCode */
3166 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3167 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3168 (rem = end - cur, len > rem)) {
3169 BIO_printf(bio_err, "Not LDAPResult\n");
3173 /* len should always be one, but just in case... */
3174 for (ret = 0, inf = 0; inf < len; inf++) {
3178 /* There is more data, but we don't care... */
3183 #endif /* OPENSSL_NO_SOCK */