2 * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
17 #include <openssl/e_os2.h>
19 #ifndef OPENSSL_NO_SOCK
22 * With IPv6, it looks like Digital has mixed up the proper order of
23 * recursive header file inclusion, resulting in the compiler complaining
24 * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
25 * needed to have fileno() declared correctly... So let's define u_int
27 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
29 typedef unsigned int u_int;
34 #include <openssl/x509.h>
35 #include <openssl/ssl.h>
36 #include <openssl/err.h>
37 #include <openssl/pem.h>
38 #include <openssl/rand.h>
39 #include <openssl/ocsp.h>
40 #include <openssl/bn.h>
41 #include <openssl/trace.h>
42 #include <openssl/async.h>
43 #ifndef OPENSSL_NO_SRP
44 # include <openssl/srp.h>
47 # include <openssl/ct.h>
51 #include "internal/sockets.h"
53 #if defined(__has_feature)
54 # if __has_feature(memory_sanitizer)
55 # include <sanitizer/msan_interface.h>
60 #define BUFSIZZ 1024*8
61 #define S_CLIENT_IRC_READ_TIMEOUT 8
64 static int c_debug = 0;
65 static int c_showcerts = 0;
66 static char *keymatexportlabel = NULL;
67 static int keymatexportlen = 20;
68 static BIO *bio_c_out = NULL;
69 static int c_quiet = 0;
70 static char *sess_out = NULL;
71 static SSL_SESSION *psksess = NULL;
73 static void print_stuff(BIO *berr, SSL *con, int full);
74 #ifndef OPENSSL_NO_OCSP
75 static int ocsp_resp_cb(SSL *s, void *arg);
77 static int ldap_ExtendedResponse_parse(const char *buf, long rem);
78 static char *base64encode (const void *buf, size_t len);
79 static int is_dNS_name(const char *host);
81 static int saved_errno;
83 static void save_errno(void)
89 static int restore_errno(void)
96 static void do_ssl_shutdown(SSL *ssl)
101 /* We only do unidirectional shutdown */
102 ret = SSL_shutdown(ssl);
104 switch (SSL_get_error(ssl, ret)) {
105 case SSL_ERROR_WANT_READ:
106 case SSL_ERROR_WANT_WRITE:
107 case SSL_ERROR_WANT_ASYNC:
108 case SSL_ERROR_WANT_ASYNC_JOB:
109 /* We just do busy waiting. Nothing clever */
117 /* Default PSK identity and key */
118 static char *psk_identity = "Client_identity";
120 #ifndef OPENSSL_NO_PSK
121 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
122 unsigned int max_identity_len,
124 unsigned int max_psk_len)
131 BIO_printf(bio_c_out, "psk_client_cb\n");
133 /* no ServerKeyExchange message */
135 BIO_printf(bio_c_out,
136 "NULL received PSK identity hint, continuing anyway\n");
137 } else if (c_debug) {
138 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
142 * lookup PSK identity and PSK key based on the given identity hint here
144 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
145 if (ret < 0 || (unsigned int)ret > max_identity_len)
148 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
151 /* convert the PSK key to binary */
152 key = OPENSSL_hexstr2buf(psk_key, &key_len);
154 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
158 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
160 "psk buffer of callback is too small (%d) for key (%ld)\n",
161 max_psk_len, key_len);
166 memcpy(psk, key, key_len);
170 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
175 BIO_printf(bio_err, "Error in PSK client callback\n");
180 const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
181 const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
183 static int psk_use_session_cb(SSL *s, const EVP_MD *md,
184 const unsigned char **id, size_t *idlen,
187 SSL_SESSION *usesess = NULL;
188 const SSL_CIPHER *cipher = NULL;
190 if (psksess != NULL) {
191 SSL_SESSION_up_ref(psksess);
195 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
198 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
203 /* We default to SHA-256 */
204 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
205 if (cipher == NULL) {
206 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
211 usesess = SSL_SESSION_new();
213 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
214 || !SSL_SESSION_set_cipher(usesess, cipher)
215 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
222 cipher = SSL_SESSION_get0_cipher(usesess);
226 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
227 /* PSK not usable, ignore it */
231 SSL_SESSION_free(usesess);
234 *id = (unsigned char *)psk_identity;
235 *idlen = strlen(psk_identity);
241 SSL_SESSION_free(usesess);
245 /* This is a context that we pass to callbacks */
246 typedef struct tlsextctx_st {
251 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
253 tlsextctx *p = (tlsextctx *) arg;
254 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
255 if (SSL_get_servername_type(s) != -1)
256 p->ack = !SSL_session_reused(s) && hn != NULL;
258 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
260 return SSL_TLSEXT_ERR_OK;
263 #ifndef OPENSSL_NO_SRP
265 /* This is a context that we pass to all callbacks */
266 typedef struct srp_arg_st {
269 int msg; /* copy from c_msg */
270 int debug; /* copy from c_debug */
271 int amp; /* allow more groups */
272 int strength; /* minimal size for N */
275 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
277 BN_CTX *bn_ctx = BN_CTX_new();
278 BIGNUM *p = BN_new();
279 BIGNUM *r = BN_new();
281 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
282 BN_check_prime(N, bn_ctx, NULL) == 1 &&
283 p != NULL && BN_rshift1(p, N) &&
285 BN_check_prime(p, bn_ctx, NULL) == 1 &&
287 /* verify g^((N-1)/2) == -1 (mod N) */
288 BN_mod_exp(r, g, p, N, bn_ctx) &&
289 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
298 * This callback is used here for two purposes:
299 * - extended debugging
300 * - making some primality tests for unknown groups
301 * The callback is only called for a non default group.
303 * An application does not need the call back at all if
304 * only the standard groups are used. In real life situations,
305 * client and server already share well known groups,
306 * thus there is no need to verify them.
307 * Furthermore, in case that a server actually proposes a group that
308 * is not one of those defined in RFC 5054, it is more appropriate
309 * to add the group to a static list and then compare since
310 * primality tests are rather cpu consuming.
313 static int ssl_srp_verify_param_cb(SSL *s, void *arg)
315 SRP_ARG *srp_arg = (SRP_ARG *)arg;
316 BIGNUM *N = NULL, *g = NULL;
318 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
320 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
321 BIO_printf(bio_err, "SRP parameters:\n");
322 BIO_printf(bio_err, "\tN=");
323 BN_print(bio_err, N);
324 BIO_printf(bio_err, "\n\tg=");
325 BN_print(bio_err, g);
326 BIO_printf(bio_err, "\n");
329 if (SRP_check_known_gN_param(g, N))
332 if (srp_arg->amp == 1) {
335 "SRP param N and g are not known params, going to check deeper.\n");
338 * The srp_moregroups is a real debugging feature. Implementors
339 * should rather add the value to the known ones. The minimal size
340 * has already been tested.
342 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
345 BIO_printf(bio_err, "SRP param N and g rejected.\n");
349 # define PWD_STRLEN 1024
351 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
353 SRP_ARG *srp_arg = (SRP_ARG *)arg;
354 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
358 cb_tmp.password = (char *)srp_arg->srppassin;
359 cb_tmp.prompt_info = "SRP user";
360 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
361 BIO_printf(bio_err, "Can't read Password\n");
372 #ifndef OPENSSL_NO_NEXTPROTONEG
373 /* This the context that we pass to next_proto_cb */
374 typedef struct tlsextnextprotoctx_st {
378 } tlsextnextprotoctx;
380 static tlsextnextprotoctx next_proto;
382 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
383 const unsigned char *in, unsigned int inlen,
386 tlsextnextprotoctx *ctx = arg;
389 /* We can assume that |in| is syntactically valid. */
391 BIO_printf(bio_c_out, "Protocols advertised by server: ");
392 for (i = 0; i < inlen;) {
394 BIO_write(bio_c_out, ", ", 2);
395 BIO_write(bio_c_out, &in[i + 1], in[i]);
398 BIO_write(bio_c_out, "\n", 1);
402 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
403 return SSL_TLSEXT_ERR_OK;
405 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
407 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
408 const unsigned char *in, size_t inlen,
412 unsigned char ext_buf[4 + 65536];
414 /* Reconstruct the type/len fields prior to extension data */
415 inlen &= 0xffff; /* for formal memcmpy correctness */
416 ext_buf[0] = (unsigned char)(ext_type >> 8);
417 ext_buf[1] = (unsigned char)(ext_type);
418 ext_buf[2] = (unsigned char)(inlen >> 8);
419 ext_buf[3] = (unsigned char)(inlen);
420 memcpy(ext_buf + 4, in, inlen);
422 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
424 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
429 * Hex decoder that tolerates optional whitespace. Returns number of bytes
430 * produced, advances inptr to end of input string.
432 static ossl_ssize_t hexdecode(const char **inptr, void *result)
434 unsigned char **out = (unsigned char **)result;
435 const char *in = *inptr;
436 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
437 unsigned char *cp = ret;
444 for (byte = 0; *in; ++in) {
447 if (isspace(_UC(*in)))
449 x = OPENSSL_hexchar2int(*in);
455 if ((nibble ^= 1) == 0) {
468 return cp - (*out = ret);
472 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
473 * inptr to next field skipping leading whitespace.
475 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
477 uint8_t *result = (uint8_t *)out;
478 const char *in = *inptr;
484 v = strtol(in, &endp, 10);
487 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
488 endp == in || !isspace(_UC(*endp)) ||
489 v != (*result = (uint8_t) v)) {
492 for (in = endp; isspace(_UC(*in)); ++in)
502 ossl_ssize_t (*parser)(const char **, void *);
505 static int tlsa_import_rr(SSL *con, const char *rrdata)
507 /* Not necessary to re-init these values; the "parsers" do that. */
508 static uint8_t usage;
509 static uint8_t selector;
510 static uint8_t mtype;
511 static unsigned char *data;
512 static struct tlsa_field tlsa_fields[] = {
513 { &usage, "usage", checked_uint8 },
514 { &selector, "selector", checked_uint8 },
515 { &mtype, "mtype", checked_uint8 },
516 { &data, "data", hexdecode },
519 struct tlsa_field *f;
521 const char *cp = rrdata;
522 ossl_ssize_t len = 0;
524 for (f = tlsa_fields; f->var; ++f) {
525 /* Returns number of bytes produced, advances cp to next field */
526 if ((len = f->parser(&cp, f->var)) <= 0) {
527 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
528 prog, f->name, rrdata);
532 /* The data field is last, so len is its length */
533 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
537 ERR_print_errors(bio_err);
538 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
543 ERR_print_errors(bio_err);
544 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
551 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
553 int num = sk_OPENSSL_STRING_num(rrset);
557 for (i = 0; i < num; ++i) {
558 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
559 if (tlsa_import_rr(con, rrdata) > 0)
565 typedef enum OPTION_choice {
566 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
567 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
568 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
569 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
570 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
571 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
572 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
573 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
574 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
575 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
576 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
577 #ifndef OPENSSL_NO_SRP
578 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
581 OPT_SSL3, OPT_SSL_CONFIG,
582 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
583 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
584 OPT_CERT_CHAIN, OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN,
585 OPT_NEXTPROTONEG, OPT_ALPN,
586 OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
587 OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE,
588 OPT_CASTORE, OPT_NOCASTORE, OPT_CHAINCASTORE, OPT_VERIFYCASTORE,
589 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
590 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
591 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
592 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
596 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_PROXY_USER, OPT_PROXY_PASS,
597 OPT_DANE_TLSA_DOMAIN,
598 #ifndef OPENSSL_NO_CT
599 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
601 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
607 const OPTIONS s_client_options[] = {
608 {"help", OPT_HELP, '-', "Display this summary"},
609 {"host", OPT_HOST, 's', "Use -connect instead"},
610 {"port", OPT_PORT, 'p', "Use -connect instead"},
611 {"connect", OPT_CONNECT, 's',
612 "TCP/IP where to connect (default is :" PORT ")"},
613 {"bind", OPT_BIND, 's', "bind local address for connection"},
614 {"proxy", OPT_PROXY, 's',
615 "Connect to via specified proxy to the real server"},
616 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
617 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
619 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
621 {"4", OPT_4, '-', "Use IPv4 only"},
623 {"6", OPT_6, '-', "Use IPv6 only"},
625 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
626 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
627 {"certform", OPT_CERTFORM, 'F',
628 "Certificate format (PEM or DER) PEM default"},
629 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
630 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
631 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
632 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
633 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
634 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
635 {"CAstore", OPT_CAFILE, ':', "URI to store of CA's"},
636 {"no-CAfile", OPT_NOCAFILE, '-',
637 "Do not load the default certificates file"},
638 {"no-CApath", OPT_NOCAPATH, '-',
639 "Do not load certificates from the default certificates directory"},
640 {"no-CAstore", OPT_NOCAPATH, '-',
641 "Do not load certificates from the default certificates store"},
642 {"requestCAfile", OPT_REQCAFILE, '<',
643 "PEM format file of CA names to send to the server"},
644 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
645 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
646 "DANE TLSA rrdata presentation form"},
647 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
648 "Disable name checks when matching DANE-EE(3) TLSA records"},
649 {"reconnect", OPT_RECONNECT, '-',
650 "Drop and re-make the connection with the same Session-ID"},
651 {"showcerts", OPT_SHOWCERTS, '-',
652 "Show all certificates sent by the server"},
653 {"debug", OPT_DEBUG, '-', "Extra output"},
654 {"msg", OPT_MSG, '-', "Show protocol messages"},
655 {"msgfile", OPT_MSGFILE, '>',
656 "File to send output of -msg or -trace, instead of stdout"},
657 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
658 {"state", OPT_STATE, '-', "Print the ssl states"},
659 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
660 {"quiet", OPT_QUIET, '-', "No s_client output"},
661 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
662 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
663 {"starttls", OPT_STARTTLS, 's',
664 "Use the appropriate STARTTLS command before starting TLS"},
665 {"xmpphost", OPT_XMPPHOST, 's',
666 "Alias of -name option for \"-starttls xmpp[-server]\""},
668 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
669 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
670 #ifndef OPENSSL_NO_SRTP
671 {"use_srtp", OPT_USE_SRTP, 's',
672 "Offer SRTP key management with a colon-separated profile list"},
674 {"keymatexport", OPT_KEYMATEXPORT, 's',
675 "Export keying material using label"},
676 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
677 "Export len bytes of keying material (default 20)"},
678 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
679 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
680 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
681 {"name", OPT_PROTOHOST, 's',
682 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
683 {"CRL", OPT_CRL, '<', "CRL file to use"},
684 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
685 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
686 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
687 "Close connection on verification error"},
688 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
689 {"brief", OPT_BRIEF, '-',
690 "Restrict output to brief summary of connection parameters"},
691 {"prexit", OPT_PREXIT, '-',
692 "Print session information when the program exits"},
693 {"security_debug", OPT_SECURITY_DEBUG, '-',
694 "Enable security debug messages"},
695 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
696 "Output more security debug output"},
697 {"cert_chain", OPT_CERT_CHAIN, '<',
698 "Certificate chain file (in PEM format)"},
699 {"chainCApath", OPT_CHAINCAPATH, '/',
700 "Use dir as certificate store path to build CA certificate chain"},
701 {"verifyCApath", OPT_VERIFYCAPATH, '/',
702 "Use dir as certificate store path to verify CA certificate"},
703 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
704 {"chainCAfile", OPT_CHAINCAFILE, '<',
705 "CA file for certificate chain (PEM format)"},
706 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
707 "CA file for certificate verification (PEM format)"},
708 {"chainCAstore", OPT_CHAINCASTORE, ':',
709 "CA store URI for certificate chain"},
710 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
711 "CA store URI for certificate verification"},
712 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
713 {"servername", OPT_SERVERNAME, 's',
714 "Set TLS extension servername (SNI) in ClientHello (default)"},
715 {"noservername", OPT_NOSERVERNAME, '-',
716 "Do not send the server name (SNI) extension in the ClientHello"},
717 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
718 "Hex dump of all TLS extensions received"},
719 #ifndef OPENSSL_NO_OCSP
720 {"status", OPT_STATUS, '-', "Request certificate status from server"},
722 {"serverinfo", OPT_SERVERINFO, 's',
723 "types Send empty ClientHello extensions (comma-separated numbers)"},
724 {"alpn", OPT_ALPN, 's',
725 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
726 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
727 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
728 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
729 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
730 "Size used to split data for encrypt pipelines"},
731 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
732 "Maximum number of encrypt/decrypt pipelines to be used"},
733 {"read_buf", OPT_READ_BUF, 'p',
734 "Default read buffer size to be used for connections"},
738 #ifndef OPENSSL_NO_SSL3
739 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
741 #ifndef OPENSSL_NO_TLS1
742 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
744 #ifndef OPENSSL_NO_TLS1_1
745 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
747 #ifndef OPENSSL_NO_TLS1_2
748 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
750 #ifndef OPENSSL_NO_TLS1_3
751 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
753 #ifndef OPENSSL_NO_DTLS
754 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
755 {"timeout", OPT_TIMEOUT, '-',
756 "Enable send/receive timeout on DTLS connections"},
757 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
759 #ifndef OPENSSL_NO_DTLS1
760 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
762 #ifndef OPENSSL_NO_DTLS1_2
763 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
765 #ifndef OPENSSL_NO_SCTP
766 {"sctp", OPT_SCTP, '-', "Use SCTP"},
767 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
769 #ifndef OPENSSL_NO_SSL_TRACE
770 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
773 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
775 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
776 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
777 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
778 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
779 #ifndef OPENSSL_NO_SRP
780 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
781 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
782 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
783 "SRP username into second ClientHello message"},
784 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
785 "Tolerate other than the known g N values."},
786 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
788 #ifndef OPENSSL_NO_NEXTPROTONEG
789 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
790 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
792 #ifndef OPENSSL_NO_ENGINE
793 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
794 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
795 "Specify engine to be used for client certificate operations"},
797 #ifndef OPENSSL_NO_CT
798 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
799 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
800 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
802 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
803 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
804 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
805 {NULL, OPT_EOF, 0x00, NULL}
808 typedef enum PROTOCOL_choice {
827 static const OPT_PAIR services[] = {
828 {"smtp", PROTO_SMTP},
829 {"pop3", PROTO_POP3},
830 {"imap", PROTO_IMAP},
832 {"xmpp", PROTO_XMPP},
833 {"xmpp-server", PROTO_XMPP_SERVER},
834 {"telnet", PROTO_TELNET},
836 {"mysql", PROTO_MYSQL},
837 {"postgres", PROTO_POSTGRES},
838 {"lmtp", PROTO_LMTP},
839 {"nntp", PROTO_NNTP},
840 {"sieve", PROTO_SIEVE},
841 {"ldap", PROTO_LDAP},
845 #define IS_INET_FLAG(o) \
846 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
847 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
849 #define IS_PROT_FLAG(o) \
850 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
851 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
853 /* Free |*dest| and optionally set it to a copy of |source|. */
854 static void freeandcopy(char **dest, const char *source)
859 *dest = OPENSSL_strdup(source);
862 static int new_session_cb(SSL *s, SSL_SESSION *sess)
865 if (sess_out != NULL) {
866 BIO *stmp = BIO_new_file(sess_out, "w");
869 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
871 PEM_write_bio_SSL_SESSION(stmp, sess);
877 * Session data gets dumped on connection for TLSv1.2 and below, and on
878 * arrival of the NewSessionTicket for TLSv1.3.
880 if (SSL_version(s) == TLS1_3_VERSION) {
881 BIO_printf(bio_c_out,
882 "---\nPost-Handshake New Session Ticket arrived:\n");
883 SSL_SESSION_print(bio_c_out, sess);
884 BIO_printf(bio_c_out, "---\n");
888 * We always return a "fail" response so that the session gets freed again
889 * because we haven't used the reference.
894 int s_client_main(int argc, char **argv)
897 EVP_PKEY *key = NULL;
900 STACK_OF(X509) *chain = NULL;
902 X509_VERIFY_PARAM *vpm = NULL;
903 SSL_EXCERT *exc = NULL;
904 SSL_CONF_CTX *cctx = NULL;
905 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
906 char *dane_tlsa_domain = NULL;
907 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
908 int dane_ee_no_name = 0;
909 STACK_OF(X509_CRL) *crls = NULL;
910 const SSL_METHOD *meth = TLS_client_method();
911 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
912 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
913 char *proxystr = NULL, *proxyuser = NULL;
914 char *proxypassarg = NULL, *proxypass = NULL;
915 char *connectstr = NULL, *bindstr = NULL;
916 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
917 char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL, *host = NULL;
918 char *port = OPENSSL_strdup(PORT);
919 char *bindhost = NULL, *bindport = NULL;
920 char *passarg = NULL, *pass = NULL;
921 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
922 char *ReqCAfile = NULL;
923 char *sess_in = NULL, *crl_file = NULL, *p;
924 const char *protohost = NULL;
925 struct timeval timeout, *timeoutp;
926 fd_set readfds, writefds;
927 int noCApath = 0, noCAfile = 0, noCAstore = 0;
928 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
929 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
932 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
933 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
934 int sbuf_len, sbuf_off, cmdletters = 1;
935 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
936 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
937 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
938 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
941 int read_buf_len = 0;
942 int fallback_scsv = 0;
944 #ifndef OPENSSL_NO_DTLS
945 int enable_timeouts = 0;
948 #ifndef OPENSSL_NO_ENGINE
949 ENGINE *ssl_client_engine = NULL;
952 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
955 const char *servername = NULL;
956 int noservername = 0;
957 const char *alpn_in = NULL;
958 tlsextctx tlsextcbp = { NULL, 0 };
959 const char *ssl_config = NULL;
960 #define MAX_SI_TYPES 100
961 unsigned short serverinfo_types[MAX_SI_TYPES];
962 int serverinfo_count = 0, start = 0, len;
963 #ifndef OPENSSL_NO_NEXTPROTONEG
964 const char *next_proto_neg_in = NULL;
966 #ifndef OPENSSL_NO_SRP
967 char *srppass = NULL;
968 int srp_lateuser = 0;
969 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
971 #ifndef OPENSSL_NO_SRTP
972 char *srtp_profiles = NULL;
974 #ifndef OPENSSL_NO_CT
975 char *ctlog_file = NULL;
976 int ct_validation = 0;
978 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
980 unsigned int max_send_fragment = 0;
981 unsigned int split_send_fragment = 0, max_pipelines = 0;
982 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
984 uint8_t maxfraglen = 0;
985 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
986 int c_tlsextdebug = 0;
987 #ifndef OPENSSL_NO_OCSP
988 int c_status_req = 0;
990 BIO *bio_c_msg = NULL;
991 const char *keylog_file = NULL, *early_data_file = NULL;
992 #ifndef OPENSSL_NO_DTLS
995 char *psksessf = NULL;
997 #ifndef OPENSSL_NO_SCTP
998 int sctp_label_bug = 0;
1003 /* Known false-positive of MemorySanitizer. */
1004 #if defined(__has_feature)
1005 # if __has_feature(memory_sanitizer)
1006 __msan_unpoison(&readfds, sizeof(readfds));
1007 __msan_unpoison(&writefds, sizeof(writefds));
1011 prog = opt_progname(argv[0]);
1016 vpm = X509_VERIFY_PARAM_new();
1017 cctx = SSL_CONF_CTX_new();
1019 if (vpm == NULL || cctx == NULL) {
1020 BIO_printf(bio_err, "%s: out of memory\n", prog);
1024 cbuf = app_malloc(BUFSIZZ, "cbuf");
1025 sbuf = app_malloc(BUFSIZZ, "sbuf");
1026 mbuf = app_malloc(BUFSIZZ, "mbuf");
1028 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
1030 prog = opt_init(argc, argv, s_client_options);
1031 while ((o = opt_next()) != OPT_EOF) {
1032 /* Check for intermixing flags. */
1033 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1035 "%s: Intermixed protocol flags (unix and internet domains)\n",
1039 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1041 "%s: Intermixed protocol flags (internet and unix domains)\n",
1046 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1047 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1050 if (IS_NO_PROT_FLAG(o))
1052 if (prot_opt == 1 && no_prot_opt) {
1054 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1062 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1065 opt_help(s_client_options);
1069 connect_type = use_inet;
1070 socket_family = AF_INET;
1075 connect_type = use_inet;
1076 socket_family = AF_INET6;
1081 connect_type = use_inet;
1082 freeandcopy(&host, opt_arg());
1085 connect_type = use_inet;
1086 freeandcopy(&port, opt_arg());
1089 connect_type = use_inet;
1090 freeandcopy(&connectstr, opt_arg());
1093 freeandcopy(&bindstr, opt_arg());
1096 proxystr = opt_arg();
1097 starttls_proto = PROTO_CONNECT;
1099 case OPT_PROXY_USER:
1100 proxyuser = opt_arg();
1102 case OPT_PROXY_PASS:
1103 proxypassarg = opt_arg();
1107 connect_type = use_unix;
1108 socket_family = AF_UNIX;
1109 freeandcopy(&host, opt_arg());
1113 /* fall through, since this is an alias */
1115 protohost = opt_arg();
1118 verify = SSL_VERIFY_PEER;
1119 verify_args.depth = atoi(opt_arg());
1121 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1124 cert_file = opt_arg();
1127 if (!set_nameopt(opt_arg()))
1131 crl_file = opt_arg();
1133 case OPT_CRL_DOWNLOAD:
1137 sess_out = opt_arg();
1140 sess_in = opt_arg();
1143 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1147 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1150 case OPT_VERIFY_RET_ERROR:
1151 verify = SSL_VERIFY_PEER;
1152 verify_args.return_error = 1;
1154 case OPT_VERIFY_QUIET:
1155 verify_args.quiet = 1;
1158 c_brief = verify_args.quiet = c_quiet = 1;
1161 if (ssl_args == NULL)
1162 ssl_args = sk_OPENSSL_STRING_new_null();
1163 if (ssl_args == NULL
1164 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1165 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1166 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1171 if (!opt_verify(o, vpm))
1176 if (!args_excert(o, &exc))
1186 c_quiet = c_ign_eof = 1;
1195 e = setup_engine(opt_arg(), 1);
1197 case OPT_SSL_CLIENT_ENGINE:
1198 #ifndef OPENSSL_NO_ENGINE
1199 ssl_client_engine = ENGINE_by_id(opt_arg());
1200 if (ssl_client_engine == NULL) {
1201 BIO_printf(bio_err, "Error getting client auth engine\n");
1213 case OPT_NO_IGN_EOF:
1219 case OPT_TLSEXTDEBUG:
1223 #ifndef OPENSSL_NO_OCSP
1236 bio_c_msg = BIO_new_file(opt_arg(), "w");
1239 #ifndef OPENSSL_NO_SSL_TRACE
1243 case OPT_SECURITY_DEBUG:
1246 case OPT_SECURITY_DEBUG_VERBOSE:
1258 case OPT_PSK_IDENTITY:
1259 psk_identity = opt_arg();
1262 for (p = psk_key = opt_arg(); *p; p++) {
1263 if (isxdigit(_UC(*p)))
1265 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1270 psksessf = opt_arg();
1272 #ifndef OPENSSL_NO_SRP
1274 srp_arg.srplogin = opt_arg();
1275 if (min_version < TLS1_VERSION)
1276 min_version = TLS1_VERSION;
1279 srppass = opt_arg();
1280 if (min_version < TLS1_VERSION)
1281 min_version = TLS1_VERSION;
1283 case OPT_SRP_STRENGTH:
1284 srp_arg.strength = atoi(opt_arg());
1285 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1287 if (min_version < TLS1_VERSION)
1288 min_version = TLS1_VERSION;
1290 case OPT_SRP_LATEUSER:
1292 if (min_version < TLS1_VERSION)
1293 min_version = TLS1_VERSION;
1295 case OPT_SRP_MOREGROUPS:
1297 if (min_version < TLS1_VERSION)
1298 min_version = TLS1_VERSION;
1301 case OPT_SSL_CONFIG:
1302 ssl_config = opt_arg();
1305 min_version = SSL3_VERSION;
1306 max_version = SSL3_VERSION;
1309 min_version = TLS1_3_VERSION;
1310 max_version = TLS1_3_VERSION;
1313 min_version = TLS1_2_VERSION;
1314 max_version = TLS1_2_VERSION;
1317 min_version = TLS1_1_VERSION;
1318 max_version = TLS1_1_VERSION;
1321 min_version = TLS1_VERSION;
1322 max_version = TLS1_VERSION;
1325 #ifndef OPENSSL_NO_DTLS
1326 meth = DTLS_client_method();
1327 socket_type = SOCK_DGRAM;
1332 #ifndef OPENSSL_NO_DTLS1
1333 meth = DTLS_client_method();
1334 min_version = DTLS1_VERSION;
1335 max_version = DTLS1_VERSION;
1336 socket_type = SOCK_DGRAM;
1341 #ifndef OPENSSL_NO_DTLS1_2
1342 meth = DTLS_client_method();
1343 min_version = DTLS1_2_VERSION;
1344 max_version = DTLS1_2_VERSION;
1345 socket_type = SOCK_DGRAM;
1350 #ifndef OPENSSL_NO_SCTP
1351 protocol = IPPROTO_SCTP;
1354 case OPT_SCTP_LABEL_BUG:
1355 #ifndef OPENSSL_NO_SCTP
1360 #ifndef OPENSSL_NO_DTLS
1361 enable_timeouts = 1;
1365 #ifndef OPENSSL_NO_DTLS
1366 socket_mtu = atol(opt_arg());
1369 case OPT_FALLBACKSCSV:
1373 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1377 passarg = opt_arg();
1379 case OPT_CERT_CHAIN:
1380 chain_file = opt_arg();
1383 key_file = opt_arg();
1394 case OPT_CHAINCAPATH:
1395 chCApath = opt_arg();
1397 case OPT_VERIFYCAPATH:
1398 vfyCApath = opt_arg();
1400 case OPT_BUILD_CHAIN:
1404 ReqCAfile = opt_arg();
1412 #ifndef OPENSSL_NO_CT
1419 case OPT_CTLOG_FILE:
1420 ctlog_file = opt_arg();
1423 case OPT_CHAINCAFILE:
1424 chCAfile = opt_arg();
1426 case OPT_VERIFYCAFILE:
1427 vfyCAfile = opt_arg();
1430 CAstore = opt_arg();
1435 case OPT_CHAINCASTORE:
1436 chCAstore = opt_arg();
1438 case OPT_VERIFYCASTORE:
1439 vfyCAstore = opt_arg();
1441 case OPT_DANE_TLSA_DOMAIN:
1442 dane_tlsa_domain = opt_arg();
1444 case OPT_DANE_TLSA_RRDATA:
1445 if (dane_tlsa_rrset == NULL)
1446 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1447 if (dane_tlsa_rrset == NULL ||
1448 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1449 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1453 case OPT_DANE_EE_NO_NAME:
1454 dane_ee_no_name = 1;
1456 case OPT_NEXTPROTONEG:
1457 #ifndef OPENSSL_NO_NEXTPROTONEG
1458 next_proto_neg_in = opt_arg();
1462 alpn_in = opt_arg();
1464 case OPT_SERVERINFO:
1467 for (start = 0, i = 0; i <= len; ++i) {
1468 if (i == len || p[i] == ',') {
1469 serverinfo_types[serverinfo_count] = atoi(p + start);
1470 if (++serverinfo_count == MAX_SI_TYPES)
1477 if (!opt_pair(opt_arg(), services, &starttls_proto))
1480 case OPT_SERVERNAME:
1481 servername = opt_arg();
1483 case OPT_NOSERVERNAME:
1487 #ifndef OPENSSL_NO_SRTP
1488 srtp_profiles = opt_arg();
1491 case OPT_KEYMATEXPORT:
1492 keymatexportlabel = opt_arg();
1494 case OPT_KEYMATEXPORTLEN:
1495 keymatexportlen = atoi(opt_arg());
1500 case OPT_MAXFRAGLEN:
1501 len = atoi(opt_arg());
1504 maxfraglen = TLSEXT_max_fragment_length_512;
1507 maxfraglen = TLSEXT_max_fragment_length_1024;
1510 maxfraglen = TLSEXT_max_fragment_length_2048;
1513 maxfraglen = TLSEXT_max_fragment_length_4096;
1517 "%s: Max Fragment Len %u is out of permitted values",
1522 case OPT_MAX_SEND_FRAG:
1523 max_send_fragment = atoi(opt_arg());
1525 case OPT_SPLIT_SEND_FRAG:
1526 split_send_fragment = atoi(opt_arg());
1528 case OPT_MAX_PIPELINES:
1529 max_pipelines = atoi(opt_arg());
1532 read_buf_len = atoi(opt_arg());
1534 case OPT_KEYLOG_FILE:
1535 keylog_file = opt_arg();
1537 case OPT_EARLY_DATA:
1538 early_data_file = opt_arg();
1540 case OPT_ENABLE_PHA:
1546 if (count4or6 >= 2) {
1547 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1551 if (servername != NULL) {
1553 "%s: Can't use -servername and -noservername together\n",
1557 if (dane_tlsa_domain != NULL) {
1559 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1564 argc = opt_num_rest();
1566 /* If there's a positional argument, it's the equivalent of
1568 * Don't allow -connect and a separate argument.
1570 if (connectstr != NULL) {
1572 "%s: must not provide both -connect option and target parameter\n",
1576 connect_type = use_inet;
1577 freeandcopy(&connectstr, *opt_rest());
1578 } else if (argc != 0) {
1582 #ifndef OPENSSL_NO_NEXTPROTONEG
1583 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1584 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1588 if (proxystr != NULL) {
1590 char *tmp_host = host, *tmp_port = port;
1591 if (connectstr == NULL) {
1592 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1595 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1596 if (tmp_host != host)
1597 OPENSSL_free(tmp_host);
1598 if (tmp_port != port)
1599 OPENSSL_free(tmp_port);
1602 "%s: -proxy argument malformed or ambiguous\n", prog);
1607 char *tmp_host = host, *tmp_port = port;
1608 if (connectstr != NULL)
1609 res = BIO_parse_hostserv(connectstr, &host, &port,
1610 BIO_PARSE_PRIO_HOST);
1611 if (tmp_host != host)
1612 OPENSSL_free(tmp_host);
1613 if (tmp_port != port)
1614 OPENSSL_free(tmp_port);
1617 "%s: -connect argument or target parameter malformed or ambiguous\n",
1623 if (bindstr != NULL) {
1625 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1626 BIO_PARSE_PRIO_HOST);
1629 "%s: -bind argument parameter malformed or ambiguous\n",
1636 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1638 "Can't use unix sockets and datagrams together\n");
1643 #ifndef OPENSSL_NO_SCTP
1644 if (protocol == IPPROTO_SCTP) {
1645 if (socket_type != SOCK_DGRAM) {
1646 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1649 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1650 socket_type = SOCK_STREAM;
1654 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1655 next_proto.status = -1;
1656 if (next_proto_neg_in) {
1658 next_protos_parse(&next_proto.len, next_proto_neg_in);
1659 if (next_proto.data == NULL) {
1660 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1664 next_proto.data = NULL;
1667 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1668 BIO_printf(bio_err, "Error getting private key password\n");
1672 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1673 BIO_printf(bio_err, "Error getting proxy password\n");
1677 if (proxypass != NULL && proxyuser == NULL) {
1678 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1682 if (key_file == NULL)
1683 key_file = cert_file;
1685 if (key_file != NULL) {
1686 key = load_key(key_file, key_format, 0, pass, e,
1687 "client certificate private key file");
1689 ERR_print_errors(bio_err);
1694 if (cert_file != NULL) {
1695 cert = load_cert(cert_file, cert_format, "client certificate file");
1697 ERR_print_errors(bio_err);
1702 if (chain_file != NULL) {
1703 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1704 "client certificate chain"))
1708 if (crl_file != NULL) {
1710 crl = load_crl(crl_file, crl_format);
1712 BIO_puts(bio_err, "Error loading CRL\n");
1713 ERR_print_errors(bio_err);
1716 crls = sk_X509_CRL_new_null();
1717 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1718 BIO_puts(bio_err, "Error adding CRL\n");
1719 ERR_print_errors(bio_err);
1725 if (!load_excert(&exc))
1728 if (bio_c_out == NULL) {
1729 if (c_quiet && !c_debug) {
1730 bio_c_out = BIO_new(BIO_s_null());
1731 if (c_msg && bio_c_msg == NULL)
1732 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1733 } else if (bio_c_out == NULL)
1734 bio_c_out = dup_bio_out(FORMAT_TEXT);
1736 #ifndef OPENSSL_NO_SRP
1737 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1738 BIO_printf(bio_err, "Error getting password\n");
1743 ctx = SSL_CTX_new(meth);
1745 ERR_print_errors(bio_err);
1749 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1752 ssl_ctx_security_debug(ctx, sdebug);
1754 if (!config_ctx(cctx, ssl_args, ctx))
1757 if (ssl_config != NULL) {
1758 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1759 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1761 ERR_print_errors(bio_err);
1766 #ifndef OPENSSL_NO_SCTP
1767 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1768 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1771 if (min_version != 0
1772 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1774 if (max_version != 0
1775 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1778 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1779 BIO_printf(bio_err, "Error setting verify params\n");
1780 ERR_print_errors(bio_err);
1785 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1788 if (max_send_fragment > 0
1789 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1790 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1791 prog, max_send_fragment);
1795 if (split_send_fragment > 0
1796 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1797 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1798 prog, split_send_fragment);
1802 if (max_pipelines > 0
1803 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1804 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1805 prog, max_pipelines);
1809 if (read_buf_len > 0) {
1810 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1814 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1816 "%s: Max Fragment Length code %u is out of permitted values"
1817 "\n", prog, maxfraglen);
1821 if (!ssl_load_stores(ctx,
1822 vfyCApath, vfyCAfile, vfyCAstore,
1823 chCApath, chCAfile, chCAstore,
1824 crls, crl_download)) {
1825 BIO_printf(bio_err, "Error loading store locations\n");
1826 ERR_print_errors(bio_err);
1829 if (ReqCAfile != NULL) {
1830 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1832 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1833 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1834 BIO_printf(bio_err, "Error loading CA names\n");
1835 ERR_print_errors(bio_err);
1838 SSL_CTX_set0_CA_list(ctx, nm);
1840 #ifndef OPENSSL_NO_ENGINE
1841 if (ssl_client_engine) {
1842 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1843 BIO_puts(bio_err, "Error setting client auth engine\n");
1844 ERR_print_errors(bio_err);
1845 ENGINE_free(ssl_client_engine);
1848 ENGINE_free(ssl_client_engine);
1852 #ifndef OPENSSL_NO_PSK
1853 if (psk_key != NULL) {
1855 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1856 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1859 if (psksessf != NULL) {
1860 BIO *stmp = BIO_new_file(psksessf, "r");
1863 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1864 ERR_print_errors(bio_err);
1867 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1869 if (psksess == NULL) {
1870 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1871 ERR_print_errors(bio_err);
1875 if (psk_key != NULL || psksess != NULL)
1876 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1878 #ifndef OPENSSL_NO_SRTP
1879 if (srtp_profiles != NULL) {
1880 /* Returns 0 on success! */
1881 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1882 BIO_printf(bio_err, "Error setting SRTP profile\n");
1883 ERR_print_errors(bio_err);
1890 ssl_ctx_set_excert(ctx, exc);
1892 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1893 if (next_proto.data != NULL)
1894 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1898 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1901 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1904 /* Returns 0 on success! */
1905 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1906 BIO_printf(bio_err, "Error setting ALPN\n");
1912 for (i = 0; i < serverinfo_count; i++) {
1913 if (!SSL_CTX_add_client_custom_ext(ctx,
1914 serverinfo_types[i],
1916 serverinfo_cli_parse_cb, NULL)) {
1918 "Warning: Unable to add custom extension %u, skipping\n",
1919 serverinfo_types[i]);
1924 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1926 #ifndef OPENSSL_NO_CT
1927 /* Enable SCT processing, without early connection termination */
1928 if (ct_validation &&
1929 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1930 ERR_print_errors(bio_err);
1934 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1935 if (ct_validation) {
1936 ERR_print_errors(bio_err);
1941 * If CT validation is not enabled, the log list isn't needed so don't
1942 * show errors or abort. We try to load it regardless because then we
1943 * can show the names of the logs any SCTs came from (SCTs may be seen
1944 * even with validation disabled).
1950 SSL_CTX_set_verify(ctx, verify, verify_callback);
1952 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1953 CAstore, noCAstore)) {
1954 ERR_print_errors(bio_err);
1958 ssl_ctx_add_crls(ctx, crls, crl_download);
1960 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1963 if (!noservername) {
1964 tlsextcbp.biodebug = bio_err;
1965 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1966 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1968 # ifndef OPENSSL_NO_SRP
1969 if (srp_arg.srplogin) {
1970 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1971 BIO_printf(bio_err, "Unable to set SRP username\n");
1974 srp_arg.msg = c_msg;
1975 srp_arg.debug = c_debug;
1976 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1977 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1978 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1979 if (c_msg || c_debug || srp_arg.amp == 0)
1980 SSL_CTX_set_srp_verify_param_callback(ctx,
1981 ssl_srp_verify_param_cb);
1985 if (dane_tlsa_domain != NULL) {
1986 if (SSL_CTX_dane_enable(ctx) <= 0) {
1988 "%s: Error enabling DANE TLSA authentication.\n",
1990 ERR_print_errors(bio_err);
1996 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1997 * come at any time. Therefore we use a callback to write out the session
1998 * when we know about it. This approach works for < TLSv1.3 as well.
2000 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
2001 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
2002 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
2004 if (set_keylog_file(ctx, keylog_file))
2012 SSL_set_post_handshake_auth(con, 1);
2014 if (sess_in != NULL) {
2016 BIO *stmp = BIO_new_file(sess_in, "r");
2018 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2019 ERR_print_errors(bio_err);
2022 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2025 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2026 ERR_print_errors(bio_err);
2029 if (!SSL_set_session(con, sess)) {
2030 BIO_printf(bio_err, "Can't set session\n");
2031 ERR_print_errors(bio_err);
2035 SSL_SESSION_free(sess);
2039 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
2041 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
2042 if (servername == NULL) {
2043 if(host == NULL || is_dNS_name(host))
2044 servername = (host == NULL) ? "localhost" : host;
2046 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
2047 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2048 ERR_print_errors(bio_err);
2053 if (dane_tlsa_domain != NULL) {
2054 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2055 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2056 "authentication.\n", prog);
2057 ERR_print_errors(bio_err);
2060 if (dane_tlsa_rrset == NULL) {
2061 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2062 "least one -dane_tlsa_rrdata option.\n", prog);
2065 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2066 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2067 "records.\n", prog);
2070 if (dane_ee_no_name)
2071 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2072 } else if (dane_tlsa_rrset != NULL) {
2073 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2074 "-dane_tlsa_domain option.\n", prog);
2079 if (init_client(&s, host, port, bindhost, bindport, socket_family,
2080 socket_type, protocol) == 0) {
2081 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2085 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
2088 if (!BIO_socket_nbio(s, 1)) {
2089 ERR_print_errors(bio_err);
2092 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2094 #ifndef OPENSSL_NO_DTLS
2096 union BIO_sock_info_u peer_info;
2098 #ifndef OPENSSL_NO_SCTP
2099 if (protocol == IPPROTO_SCTP)
2100 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2103 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2105 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2106 BIO_printf(bio_err, "memory allocation failure\n");
2110 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2111 BIO_printf(bio_err, "getsockname:errno=%d\n",
2112 get_last_socket_error());
2113 BIO_ADDR_free(peer_info.addr);
2118 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2119 BIO_ADDR_free(peer_info.addr);
2120 peer_info.addr = NULL;
2122 if (enable_timeouts) {
2124 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2125 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2128 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2129 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2133 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2134 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2135 DTLS_get_link_min_mtu(con));
2139 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2140 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2141 BIO_printf(bio_err, "Failed to set MTU\n");
2146 /* want to do MTU discovery */
2147 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2150 #endif /* OPENSSL_NO_DTLS */
2151 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2156 test = BIO_new(BIO_f_nbio_test());
2157 sbio = BIO_push(test, sbio);
2161 BIO_set_callback(sbio, bio_dump_callback);
2162 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2165 #ifndef OPENSSL_NO_SSL_TRACE
2167 SSL_set_msg_callback(con, SSL_trace);
2170 SSL_set_msg_callback(con, msg_cb);
2171 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2174 if (c_tlsextdebug) {
2175 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2176 SSL_set_tlsext_debug_arg(con, bio_c_out);
2178 #ifndef OPENSSL_NO_OCSP
2180 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2181 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2182 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2186 SSL_set_bio(con, sbio, sbio);
2187 SSL_set_connect_state(con);
2189 /* ok, lets connect */
2190 if (fileno_stdin() > SSL_get_fd(con))
2191 width = fileno_stdin() + 1;
2193 width = SSL_get_fd(con) + 1;
2206 switch ((PROTOCOL_CHOICE) starttls_proto) {
2213 * This is an ugly hack that does a lot of assumptions. We do
2214 * have to handle multi-line responses which may come in a single
2215 * packet or not. We therefore have to use BIO_gets() which does
2216 * need a buffering BIO. So during the initial chitchat we do
2217 * push a buffering BIO into the chain that is removed again
2218 * later on to not disturb the rest of the s_client operation.
2221 BIO *fbio = BIO_new(BIO_f_buffer());
2223 BIO_push(fbio, sbio);
2224 /* Wait for multi-line response to end from LMTP or SMTP */
2226 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2227 } while (mbuf_len > 3 && mbuf[3] == '-');
2228 if (protohost == NULL)
2229 protohost = "mail.example.com";
2230 if (starttls_proto == (int)PROTO_LMTP)
2231 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2233 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2234 (void)BIO_flush(fbio);
2236 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2240 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2241 if (strstr(mbuf, "STARTTLS"))
2243 } while (mbuf_len > 3 && mbuf[3] == '-');
2244 (void)BIO_flush(fbio);
2249 "Didn't find STARTTLS in server response,"
2250 " trying anyway...\n");
2251 BIO_printf(sbio, "STARTTLS\r\n");
2252 BIO_read(sbio, sbuf, BUFSIZZ);
2257 BIO_read(sbio, mbuf, BUFSIZZ);
2258 BIO_printf(sbio, "STLS\r\n");
2259 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2261 BIO_printf(bio_err, "BIO_read failed\n");
2269 BIO *fbio = BIO_new(BIO_f_buffer());
2271 BIO_push(fbio, sbio);
2272 BIO_gets(fbio, mbuf, BUFSIZZ);
2273 /* STARTTLS command requires CAPABILITY... */
2274 BIO_printf(fbio, ". CAPABILITY\r\n");
2275 (void)BIO_flush(fbio);
2276 /* wait for multi-line CAPABILITY response */
2278 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2279 if (strstr(mbuf, "STARTTLS"))
2282 while (mbuf_len > 3 && mbuf[0] != '.');
2283 (void)BIO_flush(fbio);
2288 "Didn't find STARTTLS in server response,"
2289 " trying anyway...\n");
2290 BIO_printf(sbio, ". STARTTLS\r\n");
2291 BIO_read(sbio, sbuf, BUFSIZZ);
2296 BIO *fbio = BIO_new(BIO_f_buffer());
2298 BIO_push(fbio, sbio);
2299 /* wait for multi-line response to end from FTP */
2301 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2303 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' '));
2304 (void)BIO_flush(fbio);
2307 BIO_printf(sbio, "AUTH TLS\r\n");
2308 BIO_read(sbio, sbuf, BUFSIZZ);
2312 case PROTO_XMPP_SERVER:
2315 BIO_printf(sbio, "<stream:stream "
2316 "xmlns:stream='http://etherx.jabber.org/streams' "
2317 "xmlns='jabber:%s' to='%s' version='1.0'>",
2318 starttls_proto == PROTO_XMPP ? "client" : "server",
2319 protohost ? protohost : host);
2320 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2322 BIO_printf(bio_err, "BIO_read failed\n");
2327 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2329 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2331 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2339 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2340 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2342 BIO_printf(bio_err, "BIO_read failed\n");
2346 if (!strstr(sbuf, "<proceed"))
2353 static const unsigned char tls_do[] = {
2354 /* IAC DO START_TLS */
2357 static const unsigned char tls_will[] = {
2358 /* IAC WILL START_TLS */
2361 static const unsigned char tls_follows[] = {
2362 /* IAC SB START_TLS FOLLOWS IAC SE */
2363 255, 250, 46, 1, 255, 240
2367 /* Telnet server should demand we issue START_TLS */
2368 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2369 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2371 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2372 BIO_write(sbio, tls_will, 3);
2373 BIO_write(sbio, tls_follows, 6);
2374 (void)BIO_flush(sbio);
2375 /* Telnet server also sent the FOLLOWS sub-command */
2376 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2377 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2384 error_proto, /* Wrong protocol, not even HTTP */
2385 error_connect, /* CONNECT failed */
2387 } foundit = error_connect;
2388 BIO *fbio = BIO_new(BIO_f_buffer());
2390 BIO_push(fbio, sbio);
2391 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n", connectstr);
2393 * Workaround for broken proxies which would otherwise close
2394 * the connection when entering tunnel mode (eg Squid 2.6)
2396 BIO_printf(fbio, "Proxy-Connection: Keep-Alive\r\n");
2398 /* Support for basic (base64) proxy authentication */
2399 if (proxyuser != NULL) {
2401 char *proxyauth, *proxyauthenc;
2403 l = strlen(proxyuser);
2404 if (proxypass != NULL)
2405 l += strlen(proxypass);
2406 proxyauth = app_malloc(l + 2, "Proxy auth string");
2407 BIO_snprintf(proxyauth, l + 2, "%s:%s", proxyuser,
2408 (proxypass != NULL) ? proxypass : "");
2409 proxyauthenc = base64encode(proxyauth, strlen(proxyauth));
2410 BIO_printf(fbio, "Proxy-Authorization: Basic %s\r\n",
2412 OPENSSL_clear_free(proxyauth, strlen(proxyauth));
2413 OPENSSL_clear_free(proxyauthenc, strlen(proxyauthenc));
2416 /* Terminate the HTTP CONNECT request */
2417 BIO_printf(fbio, "\r\n");
2418 (void)BIO_flush(fbio);
2420 * The first line is the HTTP response. According to RFC 7230,
2421 * it's formatted exactly like this:
2423 * HTTP/d.d ddd Reason text\r\n
2425 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2426 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2428 "%s: HTTP CONNECT failed, insufficient response "
2429 "from proxy (got %d octets)\n", prog, mbuf_len);
2430 (void)BIO_flush(fbio);
2435 if (mbuf[8] != ' ') {
2437 "%s: HTTP CONNECT failed, incorrect response "
2438 "from proxy\n", prog);
2439 foundit = error_proto;
2440 } else if (mbuf[9] != '2') {
2441 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2446 if (foundit != error_proto) {
2447 /* Read past all following headers */
2449 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2450 } while (mbuf_len > 2);
2452 (void)BIO_flush(fbio);
2455 if (foundit != success) {
2463 BIO *fbio = BIO_new(BIO_f_buffer());
2465 BIO_push(fbio, sbio);
2466 BIO_printf(fbio, "STARTTLS\r\n");
2467 (void)BIO_flush(fbio);
2468 width = SSL_get_fd(con) + 1;
2474 openssl_fdset(SSL_get_fd(con), &readfds);
2475 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2476 timeout.tv_usec = 0;
2478 * If the IRCd doesn't respond within
2479 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2480 * it doesn't support STARTTLS. Many IRCds
2481 * will not give _any_ sort of response to a
2482 * STARTTLS command when it's not supported.
2484 if (!BIO_get_buffer_num_lines(fbio)
2485 && !BIO_pending(fbio)
2486 && !BIO_pending(sbio)
2487 && select(width, (void *)&readfds, NULL, NULL,
2490 "Timeout waiting for response (%d seconds).\n",
2491 S_CLIENT_IRC_READ_TIMEOUT);
2495 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2496 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2498 /* :example.net 451 STARTTLS :You have not registered */
2499 /* :example.net 421 STARTTLS :Unknown command */
2500 if ((numeric == 451 || numeric == 421)
2501 && strstr(mbuf, "STARTTLS") != NULL) {
2502 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2505 if (numeric == 691) {
2506 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2507 ERR_print_errors(bio_err);
2510 } while (numeric != 670);
2512 (void)BIO_flush(fbio);
2515 if (numeric != 670) {
2516 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2524 /* SSL request packet */
2525 static const unsigned char ssl_req[] = {
2526 /* payload_length, sequence_id */
2527 0x20, 0x00, 0x00, 0x01,
2529 /* capability flags, CLIENT_SSL always set */
2530 0x85, 0xae, 0x7f, 0x00,
2531 /* max-packet size */
2532 0x00, 0x00, 0x00, 0x01,
2535 /* string[23] reserved (all [0]) */
2536 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2537 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2538 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2541 int ssl_flg = 0x800;
2543 const unsigned char *packet = (const unsigned char *)sbuf;
2545 /* Receiving Initial Handshake packet. */
2546 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2548 BIO_printf(bio_err, "BIO_read failed\n");
2550 /* Packet length[3], Packet number[1] + minimum payload[17] */
2551 } else if (bytes < 21) {
2552 BIO_printf(bio_err, "MySQL packet too short.\n");
2554 } else if (bytes != (4 + packet[0] +
2556 (packet[2] << 16))) {
2557 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2559 /* protocol version[1] */
2560 } else if (packet[4] != 0xA) {
2562 "Only MySQL protocol version 10 is supported.\n");
2567 /* server version[string+NULL] */
2570 BIO_printf(bio_err, "Cannot confirm server version. ");
2572 } else if (packet[pos++] == '\0') {
2577 /* make sure we have at least 15 bytes left in the packet */
2578 if (pos + 15 > bytes) {
2580 "MySQL server handshake packet is broken.\n");
2584 pos += 12; /* skip over conn id[4] + SALT[8] */
2585 if (packet[pos++] != '\0') { /* verify filler */
2587 "MySQL packet is broken.\n");
2591 /* capability flags[2] */
2592 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2593 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2597 /* Sending SSL Handshake packet. */
2598 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2599 (void)BIO_flush(sbio);
2602 case PROTO_POSTGRES:
2604 static const unsigned char ssl_request[] = {
2605 /* Length SSLRequest */
2606 0, 0, 0, 8, 4, 210, 22, 47
2610 /* Send SSLRequest packet */
2611 BIO_write(sbio, ssl_request, 8);
2612 (void)BIO_flush(sbio);
2614 /* Reply will be a single S if SSL is enabled */
2615 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2616 if (bytes != 1 || sbuf[0] != 'S')
2623 BIO *fbio = BIO_new(BIO_f_buffer());
2625 BIO_push(fbio, sbio);
2626 BIO_gets(fbio, mbuf, BUFSIZZ);
2627 /* STARTTLS command requires CAPABILITIES... */
2628 BIO_printf(fbio, "CAPABILITIES\r\n");
2629 (void)BIO_flush(fbio);
2630 BIO_gets(fbio, mbuf, BUFSIZZ);
2631 /* no point in trying to parse the CAPABILITIES response if there is none */
2632 if (strstr(mbuf, "101") != NULL) {
2633 /* wait for multi-line CAPABILITIES response */
2635 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2636 if (strstr(mbuf, "STARTTLS"))
2638 } while (mbuf_len > 1 && mbuf[0] != '.');
2640 (void)BIO_flush(fbio);
2645 "Didn't find STARTTLS in server response,"
2646 " trying anyway...\n");
2647 BIO_printf(sbio, "STARTTLS\r\n");
2648 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2650 BIO_printf(bio_err, "BIO_read failed\n");
2653 mbuf[mbuf_len] = '\0';
2654 if (strstr(mbuf, "382") == NULL) {
2655 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2663 BIO *fbio = BIO_new(BIO_f_buffer());
2665 BIO_push(fbio, sbio);
2666 /* wait for multi-line response to end from Sieve */
2668 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2670 * According to RFC 5804 § 1.7, capability
2671 * is case-insensitive, make it uppercase
2673 if (mbuf_len > 1 && mbuf[0] == '"') {
2674 make_uppercase(mbuf);
2675 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2678 } while (mbuf_len > 1 && mbuf[0] == '"');
2679 (void)BIO_flush(fbio);
2684 "Didn't find STARTTLS in server response,"
2685 " trying anyway...\n");
2686 BIO_printf(sbio, "STARTTLS\r\n");
2687 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2689 BIO_printf(bio_err, "BIO_read failed\n");
2692 mbuf[mbuf_len] = '\0';
2694 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2698 * According to RFC 5804 § 2.2, response codes are case-
2699 * insensitive, make it uppercase but preserve the response.
2701 strncpy(sbuf, mbuf, 2);
2702 make_uppercase(sbuf);
2703 if (strncmp(sbuf, "OK", 2) != 0) {
2704 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2711 /* StartTLS Operation according to RFC 4511 */
2712 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2714 "messageID=INTEGER:1\n"
2715 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2716 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2718 char *genstr = NULL;
2720 ASN1_TYPE *atyp = NULL;
2721 BIO *ldapbio = BIO_new(BIO_s_mem());
2722 CONF *cnf = NCONF_new(NULL);
2728 BIO_puts(ldapbio, ldap_tls_genconf);
2729 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2733 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2736 BIO_printf(bio_err, "Error on line %ld\n", errline);
2741 genstr = NCONF_get_string(cnf, "default", "asn1");
2742 if (genstr == NULL) {
2744 BIO_printf(bio_err, "NCONF_get_string failed\n");
2747 atyp = ASN1_generate_nconf(genstr, cnf);
2750 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2755 /* Send SSLRequest packet */
2756 BIO_write(sbio, atyp->value.sequence->data,
2757 atyp->value.sequence->length);
2758 (void)BIO_flush(sbio);
2759 ASN1_TYPE_free(atyp);
2761 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2763 BIO_printf(bio_err, "BIO_read failed\n");
2766 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2768 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2770 } else if (result > 0) {
2771 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2780 if (early_data_file != NULL
2781 && ((SSL_get0_session(con) != NULL
2782 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2784 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2785 BIO *edfile = BIO_new_file(early_data_file, "r");
2786 size_t readbytes, writtenbytes;
2789 if (edfile == NULL) {
2790 BIO_printf(bio_err, "Cannot open early data file\n");
2795 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2798 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2799 switch (SSL_get_error(con, 0)) {
2800 case SSL_ERROR_WANT_WRITE:
2801 case SSL_ERROR_WANT_ASYNC:
2802 case SSL_ERROR_WANT_READ:
2803 /* Just keep trying - busy waiting */
2806 BIO_printf(bio_err, "Error writing early data\n");
2808 ERR_print_errors(bio_err);
2821 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2822 timeoutp = &timeout;
2826 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2827 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2836 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2837 print_ssl_summary(con);
2840 print_stuff(bio_c_out, con, full_log);
2844 if (starttls_proto) {
2845 BIO_write(bio_err, mbuf, mbuf_len);
2846 /* We don't need to know any more */
2848 starttls_proto = PROTO_OFF;
2853 BIO_printf(bio_c_out,
2854 "drop connection and then reconnect\n");
2855 do_ssl_shutdown(con);
2856 SSL_set_connect_state(con);
2857 BIO_closesocket(SSL_get_fd(con));
2863 ssl_pending = read_ssl && SSL_has_pending(con);
2866 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2869 * Note that select() returns when read _would not block_,
2870 * and EOF satisfies that. To avoid a CPU-hogging loop,
2871 * set the flag so we exit.
2873 if (read_tty && !at_eof)
2874 openssl_fdset(fileno_stdin(), &readfds);
2875 #if !defined(OPENSSL_SYS_VMS)
2877 openssl_fdset(fileno_stdout(), &writefds);
2881 openssl_fdset(SSL_get_fd(con), &readfds);
2883 openssl_fdset(SSL_get_fd(con), &writefds);
2885 if (!tty_on || !write_tty) {
2887 openssl_fdset(SSL_get_fd(con), &readfds);
2889 openssl_fdset(SSL_get_fd(con), &writefds);
2894 * Note: under VMS with SOCKETSHR the second parameter is
2895 * currently of type (int *) whereas under other systems it is
2896 * (void *) if you don't have a cast it will choke the compiler:
2897 * if you do have a cast then you can either go for (int *) or
2900 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2902 * Under Windows/DOS we make the assumption that we can always
2903 * write to the tty: therefore if we need to write to the tty we
2904 * just fall through. Otherwise we timeout the select every
2905 * second and see if there are any keypresses. Note: this is a
2906 * hack, in a proper Windows application we wouldn't do this.
2913 i = select(width, (void *)&readfds, (void *)&writefds,
2915 if (!i && (!has_stdin_waiting() || !read_tty))
2918 i = select(width, (void *)&readfds, (void *)&writefds,
2922 i = select(width, (void *)&readfds, (void *)&writefds,
2926 BIO_printf(bio_err, "bad select %d\n",
2927 get_last_socket_error());
2932 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2933 BIO_printf(bio_err, "TIMEOUT occurred\n");
2935 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2936 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2937 switch (SSL_get_error(con, k)) {
2938 case SSL_ERROR_NONE:
2943 /* we have done a write(con,NULL,0); */
2944 if (cbuf_len <= 0) {
2947 } else { /* if (cbuf_len > 0) */
2953 case SSL_ERROR_WANT_WRITE:
2954 BIO_printf(bio_c_out, "write W BLOCK\n");
2958 case SSL_ERROR_WANT_ASYNC:
2959 BIO_printf(bio_c_out, "write A BLOCK\n");
2960 wait_for_async(con);
2964 case SSL_ERROR_WANT_READ:
2965 BIO_printf(bio_c_out, "write R BLOCK\n");
2970 case SSL_ERROR_WANT_X509_LOOKUP:
2971 BIO_printf(bio_c_out, "write X BLOCK\n");
2973 case SSL_ERROR_ZERO_RETURN:
2974 if (cbuf_len != 0) {
2975 BIO_printf(bio_c_out, "shutdown\n");
2984 case SSL_ERROR_SYSCALL:
2985 if ((k != 0) || (cbuf_len != 0)) {
2986 BIO_printf(bio_err, "write:errno=%d\n",
2987 get_last_socket_error());
2994 case SSL_ERROR_WANT_ASYNC_JOB:
2995 /* This shouldn't ever happen in s_client - treat as an error */
2997 ERR_print_errors(bio_err);
3001 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
3002 /* Assume Windows/DOS/BeOS can always write */
3003 else if (!ssl_pending && write_tty)
3005 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
3008 #ifdef CHARSET_EBCDIC
3009 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
3011 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
3014 BIO_printf(bio_c_out, "DONE\n");
3021 if (sbuf_len <= 0) {
3025 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
3030 SSL_renegotiate(con);
3035 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
3037 switch (SSL_get_error(con, k)) {
3038 case SSL_ERROR_NONE:
3047 case SSL_ERROR_WANT_ASYNC:
3048 BIO_printf(bio_c_out, "read A BLOCK\n");
3049 wait_for_async(con);
3052 if ((read_tty == 0) && (write_ssl == 0))
3055 case SSL_ERROR_WANT_WRITE:
3056 BIO_printf(bio_c_out, "read W BLOCK\n");
3060 case SSL_ERROR_WANT_READ:
3061 BIO_printf(bio_c_out, "read R BLOCK\n");
3064 if ((read_tty == 0) && (write_ssl == 0))
3067 case SSL_ERROR_WANT_X509_LOOKUP:
3068 BIO_printf(bio_c_out, "read X BLOCK\n");
3070 case SSL_ERROR_SYSCALL:
3071 ret = get_last_socket_error();
3073 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
3075 BIO_printf(bio_err, "read:errno=%d\n", ret);
3077 case SSL_ERROR_ZERO_RETURN:
3078 BIO_printf(bio_c_out, "closed\n");
3081 case SSL_ERROR_WANT_ASYNC_JOB:
3082 /* This shouldn't ever happen in s_client. Treat as an error */
3084 ERR_print_errors(bio_err);
3088 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3089 #if defined(OPENSSL_SYS_MSDOS)
3090 else if (has_stdin_waiting())
3092 else if (FD_ISSET(fileno_stdin(), &readfds))
3098 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3100 /* both loops are skipped when i <= 0 */
3101 for (j = 0; j < i; j++)
3102 if (cbuf[j] == '\n')
3104 for (j = i - 1; j >= 0; j--) {
3105 cbuf[j + lf_num] = cbuf[j];
3106 if (cbuf[j] == '\n') {
3109 cbuf[j + lf_num] = '\r';
3112 assert(lf_num == 0);
3114 i = raw_read_stdin(cbuf, BUFSIZZ);
3115 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3120 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3121 BIO_printf(bio_err, "DONE\n");
3126 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3127 BIO_printf(bio_err, "RENEGOTIATING\n");
3128 SSL_renegotiate(con);
3130 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3132 BIO_printf(bio_err, "KEYUPDATE\n");
3134 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3135 : SSL_KEY_UPDATE_NOT_REQUESTED);
3140 #ifdef CHARSET_EBCDIC
3141 ebcdic2ascii(cbuf, cbuf, i);
3153 print_stuff(bio_c_out, con, full_log);
3154 do_ssl_shutdown(con);
3157 * If we ended with an alert being sent, but still with data in the
3158 * network buffer to be read, then calling BIO_closesocket() will
3159 * result in a TCP-RST being sent. On some platforms (notably
3160 * Windows) then this will result in the peer immediately abandoning
3161 * the connection including any buffered alert data before it has
3162 * had a chance to be read. Shutting down the sending side first,
3163 * and then closing the socket sends TCP-FIN first followed by
3164 * TCP-RST. This seems to allow the peer to read the alert data.
3166 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3168 * We just said we have nothing else to say, but it doesn't mean that
3169 * the other side has nothing. It's even recommended to consume incoming
3170 * data. [In testing context this ensures that alerts are passed on...]
3173 timeout.tv_usec = 500000; /* some extreme round-trip */
3176 openssl_fdset(s, &readfds);
3177 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0
3178 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3180 BIO_closesocket(SSL_get_fd(con));
3184 print_stuff(bio_c_out, con, 1);
3187 SSL_SESSION_free(psksess);
3188 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3189 OPENSSL_free(next_proto.data);
3192 set_keylog_file(NULL, NULL);
3194 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3196 sk_X509_pop_free(chain, X509_free);
3198 #ifndef OPENSSL_NO_SRP
3199 OPENSSL_free(srp_arg.srppassin);
3201 OPENSSL_free(connectstr);
3202 OPENSSL_free(bindstr);
3205 X509_VERIFY_PARAM_free(vpm);
3206 ssl_excert_free(exc);
3207 sk_OPENSSL_STRING_free(ssl_args);
3208 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3209 SSL_CONF_CTX_free(cctx);
3210 OPENSSL_clear_free(cbuf, BUFSIZZ);
3211 OPENSSL_clear_free(sbuf, BUFSIZZ);
3212 OPENSSL_clear_free(mbuf, BUFSIZZ);
3213 if (proxypass != NULL)
3214 OPENSSL_clear_free(proxypass, strlen(proxypass));
3216 BIO_free(bio_c_out);
3218 BIO_free(bio_c_msg);
3223 static void print_stuff(BIO *bio, SSL *s, int full)
3227 const SSL_CIPHER *c;
3228 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3230 #ifndef OPENSSL_NO_COMP
3231 const COMP_METHOD *comp, *expansion;
3233 unsigned char *exportedkeymat;
3234 #ifndef OPENSSL_NO_CT
3235 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3239 int got_a_chain = 0;
3241 sk = SSL_get_peer_cert_chain(s);
3245 BIO_printf(bio, "---\nCertificate chain\n");
3246 for (i = 0; i < sk_X509_num(sk); i++) {
3247 BIO_printf(bio, "%2d s:", i);
3248 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3249 BIO_puts(bio, "\n");
3250 BIO_printf(bio, " i:");
3251 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3252 BIO_puts(bio, "\n");
3254 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3258 BIO_printf(bio, "---\n");
3259 peer = SSL_get_peer_certificate(s);
3261 BIO_printf(bio, "Server certificate\n");
3263 /* Redundant if we showed the whole chain */
3264 if (!(c_showcerts && got_a_chain))
3265 PEM_write_bio_X509(bio, peer);
3266 dump_cert_text(bio, peer);
3268 BIO_printf(bio, "no peer certificate available\n");
3270 print_ca_names(bio, s);
3272 ssl_print_sigalgs(bio, s);
3273 ssl_print_tmp_key(bio, s);
3275 #ifndef OPENSSL_NO_CT
3277 * When the SSL session is anonymous, or resumed via an abbreviated
3278 * handshake, no SCTs are provided as part of the handshake. While in
3279 * a resumed session SCTs may be present in the session's certificate,
3280 * no callbacks are invoked to revalidate these, and in any case that
3281 * set of SCTs may be incomplete. Thus it makes little sense to
3282 * attempt to display SCTs from a resumed session's certificate, and of
3283 * course none are associated with an anonymous peer.
3285 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3286 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3287 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3289 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3290 if (sct_count > 0) {
3291 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3293 BIO_printf(bio, "---\n");
3294 for (i = 0; i < sct_count; ++i) {
3295 SCT *sct = sk_SCT_value(scts, i);
3297 BIO_printf(bio, "SCT validation status: %s\n",
3298 SCT_validation_status_string(sct));
3299 SCT_print(sct, bio, 0, log_store);
3300 if (i < sct_count - 1)
3301 BIO_printf(bio, "\n---\n");
3303 BIO_printf(bio, "\n");
3309 "---\nSSL handshake has read %ju bytes "
3310 "and written %ju bytes\n",
3311 BIO_number_read(SSL_get_rbio(s)),
3312 BIO_number_written(SSL_get_wbio(s)));
3314 print_verify_detail(s, bio);
3315 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3316 c = SSL_get_current_cipher(s);
3317 BIO_printf(bio, "%s, Cipher is %s\n",
3318 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3322 pktmp = X509_get0_pubkey(peer);
3323 BIO_printf(bio, "Server public key is %d bit\n",
3324 EVP_PKEY_bits(pktmp));
3326 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3327 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3328 #ifndef OPENSSL_NO_COMP
3329 comp = SSL_get_current_compression(s);
3330 expansion = SSL_get_current_expansion(s);
3331 BIO_printf(bio, "Compression: %s\n",
3332 comp ? SSL_COMP_get_name(comp) : "NONE");
3333 BIO_printf(bio, "Expansion: %s\n",
3334 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3336 #ifndef OPENSSL_NO_KTLS
3337 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3338 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3339 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3340 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3343 if (OSSL_TRACE_ENABLED(TLS)) {
3344 /* Print out local port of connection: useful for debugging */
3346 union BIO_sock_info_u info;
3348 sock = SSL_get_fd(s);
3349 if ((info.addr = BIO_ADDR_new()) != NULL
3350 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3351 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3352 ntohs(BIO_ADDR_rawport(info.addr)));
3354 BIO_ADDR_free(info.addr);
3357 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3358 if (next_proto.status != -1) {
3359 const unsigned char *proto;
3360 unsigned int proto_len;
3361 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3362 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3363 BIO_write(bio, proto, proto_len);
3364 BIO_write(bio, "\n", 1);
3368 const unsigned char *proto;
3369 unsigned int proto_len;
3370 SSL_get0_alpn_selected(s, &proto, &proto_len);
3371 if (proto_len > 0) {
3372 BIO_printf(bio, "ALPN protocol: ");
3373 BIO_write(bio, proto, proto_len);
3374 BIO_write(bio, "\n", 1);
3376 BIO_printf(bio, "No ALPN negotiated\n");
3379 #ifndef OPENSSL_NO_SRTP
3381 SRTP_PROTECTION_PROFILE *srtp_profile =
3382 SSL_get_selected_srtp_profile(s);
3385 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3386 srtp_profile->name);
3391 switch (SSL_get_early_data_status(s)) {
3392 case SSL_EARLY_DATA_NOT_SENT:
3393 BIO_printf(bio, "Early data was not sent\n");
3396 case SSL_EARLY_DATA_REJECTED:
3397 BIO_printf(bio, "Early data was rejected\n");
3400 case SSL_EARLY_DATA_ACCEPTED:
3401 BIO_printf(bio, "Early data was accepted\n");
3407 * We also print the verify results when we dump session information,
3408 * but in TLSv1.3 we may not get that right away (or at all) depending
3409 * on when we get a NewSessionTicket. Therefore we print it now as well.
3411 verify_result = SSL_get_verify_result(s);
3412 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3413 X509_verify_cert_error_string(verify_result));
3415 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3416 SSL_SESSION_print(bio, SSL_get_session(s));
3419 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3420 BIO_printf(bio, "Keying material exporter:\n");
3421 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3422 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3423 exportedkeymat = app_malloc(keymatexportlen, "export key");
3424 if (!SSL_export_keying_material(s, exportedkeymat,
3427 strlen(keymatexportlabel),
3429 BIO_printf(bio, " Error\n");
3431 BIO_printf(bio, " Keying material: ");
3432 for (i = 0; i < keymatexportlen; i++)
3433 BIO_printf(bio, "%02X", exportedkeymat[i]);
3434 BIO_printf(bio, "\n");
3436 OPENSSL_free(exportedkeymat);
3438 BIO_printf(bio, "---\n");
3440 /* flush, or debugging output gets mixed with http response */
3441 (void)BIO_flush(bio);
3444 # ifndef OPENSSL_NO_OCSP
3445 static int ocsp_resp_cb(SSL *s, void *arg)
3447 const unsigned char *p;
3450 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3451 BIO_puts(arg, "OCSP response: ");
3453 BIO_puts(arg, "no response sent\n");
3456 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3458 BIO_puts(arg, "response parse error\n");
3459 BIO_dump_indent(arg, (char *)p, len, 4);
3462 BIO_puts(arg, "\n======================================\n");
3463 OCSP_RESPONSE_print(arg, rsp, 0);
3464 BIO_puts(arg, "======================================\n");
3465 OCSP_RESPONSE_free(rsp);
3470 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3472 const unsigned char *cur, *end;
3474 int tag, xclass, inf, ret = -1;
3476 cur = (const unsigned char *)buf;
3482 * LDAPMessage ::= SEQUENCE {
3483 * messageID MessageID,
3484 * protocolOp CHOICE {
3486 * extendedResp ExtendedResponse,
3488 * controls [0] Controls OPTIONAL }
3490 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3491 * COMPONENTS OF LDAPResult,
3492 * responseName [10] LDAPOID OPTIONAL,
3493 * responseValue [11] OCTET STRING OPTIONAL }
3495 * LDAPResult ::= SEQUENCE {
3496 * resultCode ENUMERATED {
3502 * diagnosticMessage LDAPString,
3503 * referral [3] Referral OPTIONAL }
3507 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3508 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3509 (rem = end - cur, len > rem)) {
3510 BIO_printf(bio_err, "Unexpected LDAP response\n");
3514 rem = len; /* ensure that we don't overstep the SEQUENCE */
3516 /* pull MessageID */
3517 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3518 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3519 (rem = end - cur, len > rem)) {
3520 BIO_printf(bio_err, "No MessageID\n");
3524 cur += len; /* shall we check for MessageId match or just skip? */
3526 /* pull [APPLICATION 24] */
3528 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3529 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3531 BIO_printf(bio_err, "Not ExtendedResponse\n");
3535 /* pull resultCode */
3537 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3538 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3539 (rem = end - cur, len > rem)) {
3540 BIO_printf(bio_err, "Not LDAPResult\n");
3544 /* len should always be one, but just in case... */
3545 for (ret = 0, inf = 0; inf < len; inf++) {
3549 /* There is more data, but we don't care... */
3555 * BASE64 encoder: used only for encoding basic proxy authentication credentials
3557 static char *base64encode (const void *buf, size_t len)
3563 /* Calculate size of encoded data */
3568 out = app_malloc(outl + 1, "base64 encode buffer");
3570 i = EVP_EncodeBlock((unsigned char *)out, buf, len);
3571 assert(i <= (int)outl);
3578 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3579 * before setting it as SNI
3581 static int is_dNS_name(const char *host)
3583 const size_t MAX_LABEL_LENGTH = 63;
3586 size_t length = strlen(host);
3587 size_t label_length = 0;
3588 int all_numeric = 1;
3591 * Deviation from strict DNS name syntax, also check names with '_'
3592 * Check DNS name syntax, any '-' or '.' must be internal,
3593 * and on either side of each '.' we can't have a '-' or '.'.
3595 * If the name has just one label, we don't consider it a DNS name.
3597 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3600 if ((c >= 'a' && c <= 'z')
3601 || (c >= 'A' && c <= 'Z')
3608 if (c >= '0' && c <= '9') {
3613 /* Dot and hyphen cannot be first or last. */
3614 if (i > 0 && i < length - 1) {
3620 * Next to a dot the preceding and following characters must not be
3621 * another dot or a hyphen. Otherwise, record that the name is
3622 * plausible, since it has two or more labels.
3625 && host[i + 1] != '.'
3626 && host[i - 1] != '-'
3627 && host[i + 1] != '-') {
3637 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3638 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3642 #endif /* OPENSSL_NO_SOCK */