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 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [host:port]\n"},
610 OPT_SECTION("General"),
611 {"help", OPT_HELP, '-', "Display this summary"},
612 #ifndef OPENSSL_NO_ENGINE
613 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
614 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
615 "Specify engine to be used for client certificate operations"},
617 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
618 #ifndef OPENSSL_NO_CT
619 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
620 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
621 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
624 OPT_SECTION("Network"),
625 {"host", OPT_HOST, 's', "Use -connect instead"},
626 {"port", OPT_PORT, 'p', "Use -connect instead"},
627 {"connect", OPT_CONNECT, 's',
628 "TCP/IP where to connect (default is :" PORT ")"},
629 {"bind", OPT_BIND, 's', "bind local address for connection"},
630 {"proxy", OPT_PROXY, 's',
631 "Connect to via specified proxy to the real server"},
632 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
633 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
635 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
637 {"4", OPT_4, '-', "Use IPv4 only"},
639 {"6", OPT_6, '-', "Use IPv6 only"},
641 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
642 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
643 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
644 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
645 "Size used to split data for encrypt pipelines"},
646 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
647 "Maximum number of encrypt/decrypt pipelines to be used"},
648 {"read_buf", OPT_READ_BUF, 'p',
649 "Default read buffer size to be used for connections"},
650 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
652 OPT_SECTION("Identity"),
653 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
654 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
655 {"certform", OPT_CERTFORM, 'F',
656 "Certificate format (PEM or DER) PEM default"},
657 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
658 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
659 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
660 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
661 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
662 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
663 {"CAstore", OPT_CAFILE, ':', "URI to store of CA's"},
664 {"no-CAfile", OPT_NOCAFILE, '-',
665 "Do not load the default certificates file"},
666 {"no-CApath", OPT_NOCAPATH, '-',
667 "Do not load certificates from the default certificates directory"},
668 {"no-CAstore", OPT_NOCAPATH, '-',
669 "Do not load certificates from the default certificates store"},
670 {"requestCAfile", OPT_REQCAFILE, '<',
671 "PEM format file of CA names to send to the server"},
672 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
673 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
674 "DANE TLSA rrdata presentation form"},
675 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
676 "Disable name checks when matching DANE-EE(3) TLSA records"},
677 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
678 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
679 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
680 {"name", OPT_PROTOHOST, 's',
681 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
683 OPT_SECTION("Session"),
684 {"reconnect", OPT_RECONNECT, '-',
685 "Drop and re-make the connection with the same Session-ID"},
686 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
687 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
689 OPT_SECTION("Input/Output"),
690 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
691 {"quiet", OPT_QUIET, '-', "No s_client output"},
692 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
693 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
694 {"starttls", OPT_STARTTLS, 's',
695 "Use the appropriate STARTTLS command before starting TLS"},
696 {"xmpphost", OPT_XMPPHOST, 's',
697 "Alias of -name option for \"-starttls xmpp[-server]\""},
698 {"brief", OPT_BRIEF, '-',
699 "Restrict output to brief summary of connection parameters"},
700 {"prexit", OPT_PREXIT, '-',
701 "Print session information when the program exits"},
703 OPT_SECTION("Debug"),
704 {"showcerts", OPT_SHOWCERTS, '-',
705 "Show all certificates sent by the server"},
706 {"debug", OPT_DEBUG, '-', "Extra output"},
707 {"msg", OPT_MSG, '-', "Show protocol messages"},
708 {"msgfile", OPT_MSGFILE, '>',
709 "File to send output of -msg or -trace, instead of stdout"},
710 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
711 {"state", OPT_STATE, '-', "Print the ssl states"},
712 {"keymatexport", OPT_KEYMATEXPORT, 's',
713 "Export keying material using label"},
714 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
715 "Export len bytes of keying material (default 20)"},
716 {"security_debug", OPT_SECURITY_DEBUG, '-',
717 "Enable security debug messages"},
718 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
719 "Output more security debug output"},
720 #ifndef OPENSSL_NO_SSL_TRACE
721 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
724 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
726 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
727 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
728 {"servername", OPT_SERVERNAME, 's',
729 "Set TLS extension servername (SNI) in ClientHello (default)"},
730 {"noservername", OPT_NOSERVERNAME, '-',
731 "Do not send the server name (SNI) extension in the ClientHello"},
732 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
733 "Hex dump of all TLS extensions received"},
734 #ifndef OPENSSL_NO_OCSP
735 {"status", OPT_STATUS, '-', "Request certificate status from server"},
737 {"serverinfo", OPT_SERVERINFO, 's',
738 "types Send empty ClientHello extensions (comma-separated numbers)"},
739 {"alpn", OPT_ALPN, 's',
740 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
741 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
742 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
744 OPT_SECTION("Protocol and version"),
745 #ifndef OPENSSL_NO_SSL3
746 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
748 #ifndef OPENSSL_NO_TLS1
749 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
751 #ifndef OPENSSL_NO_TLS1_1
752 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
754 #ifndef OPENSSL_NO_TLS1_2
755 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
757 #ifndef OPENSSL_NO_TLS1_3
758 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
760 #ifndef OPENSSL_NO_DTLS
761 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
762 {"timeout", OPT_TIMEOUT, '-',
763 "Enable send/receive timeout on DTLS connections"},
764 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
766 #ifndef OPENSSL_NO_DTLS1
767 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
769 #ifndef OPENSSL_NO_DTLS1_2
770 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
772 #ifndef OPENSSL_NO_SCTP
773 {"sctp", OPT_SCTP, '-', "Use SCTP"},
774 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
776 #ifndef OPENSSL_NO_NEXTPROTONEG
777 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
778 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
780 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
781 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
782 #ifndef OPENSSL_NO_SRTP
783 {"use_srtp", OPT_USE_SRTP, 's',
784 "Offer SRTP key management with a colon-separated profile list"},
786 #ifndef OPENSSL_NO_SRP
787 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
788 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
789 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
790 "SRP username into second ClientHello message"},
791 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
792 "Tolerate other than the known g N values."},
793 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
799 {"CRL", OPT_CRL, '<', "CRL file to use"},
800 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
801 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
802 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
803 "Close connection on verification error"},
804 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
805 {"cert_chain", OPT_CERT_CHAIN, '<',
806 "Certificate chain file (in PEM format)"},
807 {"chainCApath", OPT_CHAINCAPATH, '/',
808 "Use dir as certificate store path to build CA certificate chain"},
809 {"chainCAstore", OPT_CHAINCASTORE, ':',
810 "CA store URI for certificate chain"},
811 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
812 "CA file for certificate verification (PEM format)"},
813 {"verifyCApath", OPT_VERIFYCAPATH, '/',
814 "Use dir as certificate store path to verify CA certificate"},
815 {"verifyCAstore", OPT_VERIFYCASTORE, ':',
816 "CA store URI for certificate verification"},
817 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
818 {"chainCAfile", OPT_CHAINCAFILE, '<',
819 "CA file for certificate chain (PEM format)"},
823 {"host:port", 0, 0, "Where to connect; same as -connect option"},
827 typedef enum PROTOCOL_choice {
846 static const OPT_PAIR services[] = {
847 {"smtp", PROTO_SMTP},
848 {"pop3", PROTO_POP3},
849 {"imap", PROTO_IMAP},
851 {"xmpp", PROTO_XMPP},
852 {"xmpp-server", PROTO_XMPP_SERVER},
853 {"telnet", PROTO_TELNET},
855 {"mysql", PROTO_MYSQL},
856 {"postgres", PROTO_POSTGRES},
857 {"lmtp", PROTO_LMTP},
858 {"nntp", PROTO_NNTP},
859 {"sieve", PROTO_SIEVE},
860 {"ldap", PROTO_LDAP},
864 #define IS_INET_FLAG(o) \
865 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
866 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
868 #define IS_PROT_FLAG(o) \
869 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
870 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
872 /* Free |*dest| and optionally set it to a copy of |source|. */
873 static void freeandcopy(char **dest, const char *source)
878 *dest = OPENSSL_strdup(source);
881 static int new_session_cb(SSL *s, SSL_SESSION *sess)
884 if (sess_out != NULL) {
885 BIO *stmp = BIO_new_file(sess_out, "w");
888 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
890 PEM_write_bio_SSL_SESSION(stmp, sess);
896 * Session data gets dumped on connection for TLSv1.2 and below, and on
897 * arrival of the NewSessionTicket for TLSv1.3.
899 if (SSL_version(s) == TLS1_3_VERSION) {
900 BIO_printf(bio_c_out,
901 "---\nPost-Handshake New Session Ticket arrived:\n");
902 SSL_SESSION_print(bio_c_out, sess);
903 BIO_printf(bio_c_out, "---\n");
907 * We always return a "fail" response so that the session gets freed again
908 * because we haven't used the reference.
913 int s_client_main(int argc, char **argv)
916 EVP_PKEY *key = NULL;
919 STACK_OF(X509) *chain = NULL;
921 X509_VERIFY_PARAM *vpm = NULL;
922 SSL_EXCERT *exc = NULL;
923 SSL_CONF_CTX *cctx = NULL;
924 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
925 char *dane_tlsa_domain = NULL;
926 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
927 int dane_ee_no_name = 0;
928 STACK_OF(X509_CRL) *crls = NULL;
929 const SSL_METHOD *meth = TLS_client_method();
930 const char *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
931 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
932 char *proxystr = NULL, *proxyuser = NULL;
933 char *proxypassarg = NULL, *proxypass = NULL;
934 char *connectstr = NULL, *bindstr = NULL;
935 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
936 char *chCApath = NULL, *chCAfile = NULL, *chCAstore = NULL, *host = NULL;
937 char *port = OPENSSL_strdup(PORT);
938 char *bindhost = NULL, *bindport = NULL;
939 char *passarg = NULL, *pass = NULL;
940 char *vfyCApath = NULL, *vfyCAfile = NULL, *vfyCAstore = NULL;
941 char *ReqCAfile = NULL;
942 char *sess_in = NULL, *crl_file = NULL, *p;
943 const char *protohost = NULL;
944 struct timeval timeout, *timeoutp;
945 fd_set readfds, writefds;
946 int noCApath = 0, noCAfile = 0, noCAstore = 0;
947 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
948 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
951 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
952 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
953 int sbuf_len, sbuf_off, cmdletters = 1;
954 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
955 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
956 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
957 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
960 int read_buf_len = 0;
961 int fallback_scsv = 0;
963 #ifndef OPENSSL_NO_DTLS
964 int enable_timeouts = 0;
967 #ifndef OPENSSL_NO_ENGINE
968 ENGINE *ssl_client_engine = NULL;
971 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
974 const char *servername = NULL;
975 int noservername = 0;
976 const char *alpn_in = NULL;
977 tlsextctx tlsextcbp = { NULL, 0 };
978 const char *ssl_config = NULL;
979 #define MAX_SI_TYPES 100
980 unsigned short serverinfo_types[MAX_SI_TYPES];
981 int serverinfo_count = 0, start = 0, len;
982 #ifndef OPENSSL_NO_NEXTPROTONEG
983 const char *next_proto_neg_in = NULL;
985 #ifndef OPENSSL_NO_SRP
986 char *srppass = NULL;
987 int srp_lateuser = 0;
988 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
990 #ifndef OPENSSL_NO_SRTP
991 char *srtp_profiles = NULL;
993 #ifndef OPENSSL_NO_CT
994 char *ctlog_file = NULL;
995 int ct_validation = 0;
997 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
999 unsigned int max_send_fragment = 0;
1000 unsigned int split_send_fragment = 0, max_pipelines = 0;
1001 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
1003 uint8_t maxfraglen = 0;
1004 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
1005 int c_tlsextdebug = 0;
1006 #ifndef OPENSSL_NO_OCSP
1007 int c_status_req = 0;
1009 BIO *bio_c_msg = NULL;
1010 const char *keylog_file = NULL, *early_data_file = NULL;
1011 #ifndef OPENSSL_NO_DTLS
1014 char *psksessf = NULL;
1016 #ifndef OPENSSL_NO_SCTP
1017 int sctp_label_bug = 0;
1022 /* Known false-positive of MemorySanitizer. */
1023 #if defined(__has_feature)
1024 # if __has_feature(memory_sanitizer)
1025 __msan_unpoison(&readfds, sizeof(readfds));
1026 __msan_unpoison(&writefds, sizeof(writefds));
1030 prog = opt_progname(argv[0]);
1035 vpm = X509_VERIFY_PARAM_new();
1036 cctx = SSL_CONF_CTX_new();
1038 if (vpm == NULL || cctx == NULL) {
1039 BIO_printf(bio_err, "%s: out of memory\n", prog);
1043 cbuf = app_malloc(BUFSIZZ, "cbuf");
1044 sbuf = app_malloc(BUFSIZZ, "sbuf");
1045 mbuf = app_malloc(BUFSIZZ, "mbuf");
1047 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
1049 prog = opt_init(argc, argv, s_client_options);
1050 while ((o = opt_next()) != OPT_EOF) {
1051 /* Check for intermixing flags. */
1052 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1054 "%s: Intermixed protocol flags (unix and internet domains)\n",
1058 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1060 "%s: Intermixed protocol flags (internet and unix domains)\n",
1065 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1066 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1069 if (IS_NO_PROT_FLAG(o))
1071 if (prot_opt == 1 && no_prot_opt) {
1073 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1081 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1084 opt_help(s_client_options);
1088 connect_type = use_inet;
1089 socket_family = AF_INET;
1094 connect_type = use_inet;
1095 socket_family = AF_INET6;
1100 connect_type = use_inet;
1101 freeandcopy(&host, opt_arg());
1104 connect_type = use_inet;
1105 freeandcopy(&port, opt_arg());
1108 connect_type = use_inet;
1109 freeandcopy(&connectstr, opt_arg());
1112 freeandcopy(&bindstr, opt_arg());
1115 proxystr = opt_arg();
1116 starttls_proto = PROTO_CONNECT;
1118 case OPT_PROXY_USER:
1119 proxyuser = opt_arg();
1121 case OPT_PROXY_PASS:
1122 proxypassarg = opt_arg();
1126 connect_type = use_unix;
1127 socket_family = AF_UNIX;
1128 freeandcopy(&host, opt_arg());
1132 /* fall through, since this is an alias */
1134 protohost = opt_arg();
1137 verify = SSL_VERIFY_PEER;
1138 verify_args.depth = atoi(opt_arg());
1140 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1143 cert_file = opt_arg();
1146 if (!set_nameopt(opt_arg()))
1150 crl_file = opt_arg();
1152 case OPT_CRL_DOWNLOAD:
1156 sess_out = opt_arg();
1159 sess_in = opt_arg();
1162 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1166 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1169 case OPT_VERIFY_RET_ERROR:
1170 verify = SSL_VERIFY_PEER;
1171 verify_args.return_error = 1;
1173 case OPT_VERIFY_QUIET:
1174 verify_args.quiet = 1;
1177 c_brief = verify_args.quiet = c_quiet = 1;
1180 if (ssl_args == NULL)
1181 ssl_args = sk_OPENSSL_STRING_new_null();
1182 if (ssl_args == NULL
1183 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1184 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1185 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1190 if (!opt_verify(o, vpm))
1195 if (!args_excert(o, &exc))
1205 c_quiet = c_ign_eof = 1;
1214 e = setup_engine(opt_arg(), 1);
1216 case OPT_SSL_CLIENT_ENGINE:
1217 #ifndef OPENSSL_NO_ENGINE
1218 ssl_client_engine = ENGINE_by_id(opt_arg());
1219 if (ssl_client_engine == NULL) {
1220 BIO_printf(bio_err, "Error getting client auth engine\n");
1232 case OPT_NO_IGN_EOF:
1238 case OPT_TLSEXTDEBUG:
1242 #ifndef OPENSSL_NO_OCSP
1255 bio_c_msg = BIO_new_file(opt_arg(), "w");
1258 #ifndef OPENSSL_NO_SSL_TRACE
1262 case OPT_SECURITY_DEBUG:
1265 case OPT_SECURITY_DEBUG_VERBOSE:
1277 case OPT_PSK_IDENTITY:
1278 psk_identity = opt_arg();
1281 for (p = psk_key = opt_arg(); *p; p++) {
1282 if (isxdigit(_UC(*p)))
1284 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1289 psksessf = opt_arg();
1291 #ifndef OPENSSL_NO_SRP
1293 srp_arg.srplogin = opt_arg();
1294 if (min_version < TLS1_VERSION)
1295 min_version = TLS1_VERSION;
1298 srppass = opt_arg();
1299 if (min_version < TLS1_VERSION)
1300 min_version = TLS1_VERSION;
1302 case OPT_SRP_STRENGTH:
1303 srp_arg.strength = atoi(opt_arg());
1304 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1306 if (min_version < TLS1_VERSION)
1307 min_version = TLS1_VERSION;
1309 case OPT_SRP_LATEUSER:
1311 if (min_version < TLS1_VERSION)
1312 min_version = TLS1_VERSION;
1314 case OPT_SRP_MOREGROUPS:
1316 if (min_version < TLS1_VERSION)
1317 min_version = TLS1_VERSION;
1320 case OPT_SSL_CONFIG:
1321 ssl_config = opt_arg();
1324 min_version = SSL3_VERSION;
1325 max_version = SSL3_VERSION;
1328 min_version = TLS1_3_VERSION;
1329 max_version = TLS1_3_VERSION;
1332 min_version = TLS1_2_VERSION;
1333 max_version = TLS1_2_VERSION;
1336 min_version = TLS1_1_VERSION;
1337 max_version = TLS1_1_VERSION;
1340 min_version = TLS1_VERSION;
1341 max_version = TLS1_VERSION;
1344 #ifndef OPENSSL_NO_DTLS
1345 meth = DTLS_client_method();
1346 socket_type = SOCK_DGRAM;
1351 #ifndef OPENSSL_NO_DTLS1
1352 meth = DTLS_client_method();
1353 min_version = DTLS1_VERSION;
1354 max_version = DTLS1_VERSION;
1355 socket_type = SOCK_DGRAM;
1360 #ifndef OPENSSL_NO_DTLS1_2
1361 meth = DTLS_client_method();
1362 min_version = DTLS1_2_VERSION;
1363 max_version = DTLS1_2_VERSION;
1364 socket_type = SOCK_DGRAM;
1369 #ifndef OPENSSL_NO_SCTP
1370 protocol = IPPROTO_SCTP;
1373 case OPT_SCTP_LABEL_BUG:
1374 #ifndef OPENSSL_NO_SCTP
1379 #ifndef OPENSSL_NO_DTLS
1380 enable_timeouts = 1;
1384 #ifndef OPENSSL_NO_DTLS
1385 socket_mtu = atol(opt_arg());
1388 case OPT_FALLBACKSCSV:
1392 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1396 passarg = opt_arg();
1398 case OPT_CERT_CHAIN:
1399 chain_file = opt_arg();
1402 key_file = opt_arg();
1413 case OPT_CHAINCAPATH:
1414 chCApath = opt_arg();
1416 case OPT_VERIFYCAPATH:
1417 vfyCApath = opt_arg();
1419 case OPT_BUILD_CHAIN:
1423 ReqCAfile = opt_arg();
1431 #ifndef OPENSSL_NO_CT
1438 case OPT_CTLOG_FILE:
1439 ctlog_file = opt_arg();
1442 case OPT_CHAINCAFILE:
1443 chCAfile = opt_arg();
1445 case OPT_VERIFYCAFILE:
1446 vfyCAfile = opt_arg();
1449 CAstore = opt_arg();
1454 case OPT_CHAINCASTORE:
1455 chCAstore = opt_arg();
1457 case OPT_VERIFYCASTORE:
1458 vfyCAstore = opt_arg();
1460 case OPT_DANE_TLSA_DOMAIN:
1461 dane_tlsa_domain = opt_arg();
1463 case OPT_DANE_TLSA_RRDATA:
1464 if (dane_tlsa_rrset == NULL)
1465 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1466 if (dane_tlsa_rrset == NULL ||
1467 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1468 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1472 case OPT_DANE_EE_NO_NAME:
1473 dane_ee_no_name = 1;
1475 case OPT_NEXTPROTONEG:
1476 #ifndef OPENSSL_NO_NEXTPROTONEG
1477 next_proto_neg_in = opt_arg();
1481 alpn_in = opt_arg();
1483 case OPT_SERVERINFO:
1486 for (start = 0, i = 0; i <= len; ++i) {
1487 if (i == len || p[i] == ',') {
1488 serverinfo_types[serverinfo_count] = atoi(p + start);
1489 if (++serverinfo_count == MAX_SI_TYPES)
1496 if (!opt_pair(opt_arg(), services, &starttls_proto))
1499 case OPT_SERVERNAME:
1500 servername = opt_arg();
1502 case OPT_NOSERVERNAME:
1506 #ifndef OPENSSL_NO_SRTP
1507 srtp_profiles = opt_arg();
1510 case OPT_KEYMATEXPORT:
1511 keymatexportlabel = opt_arg();
1513 case OPT_KEYMATEXPORTLEN:
1514 keymatexportlen = atoi(opt_arg());
1519 case OPT_MAXFRAGLEN:
1520 len = atoi(opt_arg());
1523 maxfraglen = TLSEXT_max_fragment_length_512;
1526 maxfraglen = TLSEXT_max_fragment_length_1024;
1529 maxfraglen = TLSEXT_max_fragment_length_2048;
1532 maxfraglen = TLSEXT_max_fragment_length_4096;
1536 "%s: Max Fragment Len %u is out of permitted values",
1541 case OPT_MAX_SEND_FRAG:
1542 max_send_fragment = atoi(opt_arg());
1544 case OPT_SPLIT_SEND_FRAG:
1545 split_send_fragment = atoi(opt_arg());
1547 case OPT_MAX_PIPELINES:
1548 max_pipelines = atoi(opt_arg());
1551 read_buf_len = atoi(opt_arg());
1553 case OPT_KEYLOG_FILE:
1554 keylog_file = opt_arg();
1556 case OPT_EARLY_DATA:
1557 early_data_file = opt_arg();
1559 case OPT_ENABLE_PHA:
1565 if (count4or6 >= 2) {
1566 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1570 if (servername != NULL) {
1572 "%s: Can't use -servername and -noservername together\n",
1576 if (dane_tlsa_domain != NULL) {
1578 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1583 argc = opt_num_rest();
1585 /* If there's a positional argument, it's the equivalent of
1587 * Don't allow -connect and a separate argument.
1589 if (connectstr != NULL) {
1591 "%s: must not provide both -connect option and target parameter\n",
1595 connect_type = use_inet;
1596 freeandcopy(&connectstr, *opt_rest());
1597 } else if (argc != 0) {
1601 #ifndef OPENSSL_NO_NEXTPROTONEG
1602 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1603 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1607 if (proxystr != NULL) {
1609 char *tmp_host = host, *tmp_port = port;
1610 if (connectstr == NULL) {
1611 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1614 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1615 if (tmp_host != host)
1616 OPENSSL_free(tmp_host);
1617 if (tmp_port != port)
1618 OPENSSL_free(tmp_port);
1621 "%s: -proxy argument malformed or ambiguous\n", prog);
1626 char *tmp_host = host, *tmp_port = port;
1627 if (connectstr != NULL)
1628 res = BIO_parse_hostserv(connectstr, &host, &port,
1629 BIO_PARSE_PRIO_HOST);
1630 if (tmp_host != host)
1631 OPENSSL_free(tmp_host);
1632 if (tmp_port != port)
1633 OPENSSL_free(tmp_port);
1636 "%s: -connect argument or target parameter malformed or ambiguous\n",
1642 if (bindstr != NULL) {
1644 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1645 BIO_PARSE_PRIO_HOST);
1648 "%s: -bind argument parameter malformed or ambiguous\n",
1655 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1657 "Can't use unix sockets and datagrams together\n");
1662 #ifndef OPENSSL_NO_SCTP
1663 if (protocol == IPPROTO_SCTP) {
1664 if (socket_type != SOCK_DGRAM) {
1665 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1668 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1669 socket_type = SOCK_STREAM;
1673 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1674 next_proto.status = -1;
1675 if (next_proto_neg_in) {
1677 next_protos_parse(&next_proto.len, next_proto_neg_in);
1678 if (next_proto.data == NULL) {
1679 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1683 next_proto.data = NULL;
1686 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1687 BIO_printf(bio_err, "Error getting private key password\n");
1691 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1692 BIO_printf(bio_err, "Error getting proxy password\n");
1696 if (proxypass != NULL && proxyuser == NULL) {
1697 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1701 if (key_file == NULL)
1702 key_file = cert_file;
1704 if (key_file != NULL) {
1705 key = load_key(key_file, key_format, 0, pass, e,
1706 "client certificate private key file");
1708 ERR_print_errors(bio_err);
1713 if (cert_file != NULL) {
1714 cert = load_cert(cert_file, cert_format, "client certificate file");
1716 ERR_print_errors(bio_err);
1721 if (chain_file != NULL) {
1722 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1723 "client certificate chain"))
1727 if (crl_file != NULL) {
1729 crl = load_crl(crl_file, crl_format);
1731 BIO_puts(bio_err, "Error loading CRL\n");
1732 ERR_print_errors(bio_err);
1735 crls = sk_X509_CRL_new_null();
1736 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1737 BIO_puts(bio_err, "Error adding CRL\n");
1738 ERR_print_errors(bio_err);
1744 if (!load_excert(&exc))
1747 if (bio_c_out == NULL) {
1748 if (c_quiet && !c_debug) {
1749 bio_c_out = BIO_new(BIO_s_null());
1750 if (c_msg && bio_c_msg == NULL)
1751 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1752 } else if (bio_c_out == NULL)
1753 bio_c_out = dup_bio_out(FORMAT_TEXT);
1755 #ifndef OPENSSL_NO_SRP
1756 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1757 BIO_printf(bio_err, "Error getting password\n");
1762 ctx = SSL_CTX_new(meth);
1764 ERR_print_errors(bio_err);
1768 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1771 ssl_ctx_security_debug(ctx, sdebug);
1773 if (!config_ctx(cctx, ssl_args, ctx))
1776 if (ssl_config != NULL) {
1777 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1778 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1780 ERR_print_errors(bio_err);
1785 #ifndef OPENSSL_NO_SCTP
1786 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1787 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1790 if (min_version != 0
1791 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1793 if (max_version != 0
1794 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1797 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1798 BIO_printf(bio_err, "Error setting verify params\n");
1799 ERR_print_errors(bio_err);
1804 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1807 if (max_send_fragment > 0
1808 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1809 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1810 prog, max_send_fragment);
1814 if (split_send_fragment > 0
1815 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1816 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1817 prog, split_send_fragment);
1821 if (max_pipelines > 0
1822 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1823 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1824 prog, max_pipelines);
1828 if (read_buf_len > 0) {
1829 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1833 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1835 "%s: Max Fragment Length code %u is out of permitted values"
1836 "\n", prog, maxfraglen);
1840 if (!ssl_load_stores(ctx,
1841 vfyCApath, vfyCAfile, vfyCAstore,
1842 chCApath, chCAfile, chCAstore,
1843 crls, crl_download)) {
1844 BIO_printf(bio_err, "Error loading store locations\n");
1845 ERR_print_errors(bio_err);
1848 if (ReqCAfile != NULL) {
1849 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1851 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1852 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1853 BIO_printf(bio_err, "Error loading CA names\n");
1854 ERR_print_errors(bio_err);
1857 SSL_CTX_set0_CA_list(ctx, nm);
1859 #ifndef OPENSSL_NO_ENGINE
1860 if (ssl_client_engine) {
1861 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1862 BIO_puts(bio_err, "Error setting client auth engine\n");
1863 ERR_print_errors(bio_err);
1864 ENGINE_free(ssl_client_engine);
1867 ENGINE_free(ssl_client_engine);
1871 #ifndef OPENSSL_NO_PSK
1872 if (psk_key != NULL) {
1874 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1875 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1878 if (psksessf != NULL) {
1879 BIO *stmp = BIO_new_file(psksessf, "r");
1882 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1883 ERR_print_errors(bio_err);
1886 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1888 if (psksess == NULL) {
1889 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1890 ERR_print_errors(bio_err);
1894 if (psk_key != NULL || psksess != NULL)
1895 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1897 #ifndef OPENSSL_NO_SRTP
1898 if (srtp_profiles != NULL) {
1899 /* Returns 0 on success! */
1900 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1901 BIO_printf(bio_err, "Error setting SRTP profile\n");
1902 ERR_print_errors(bio_err);
1909 ssl_ctx_set_excert(ctx, exc);
1911 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1912 if (next_proto.data != NULL)
1913 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1917 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1920 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1923 /* Returns 0 on success! */
1924 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1925 BIO_printf(bio_err, "Error setting ALPN\n");
1931 for (i = 0; i < serverinfo_count; i++) {
1932 if (!SSL_CTX_add_client_custom_ext(ctx,
1933 serverinfo_types[i],
1935 serverinfo_cli_parse_cb, NULL)) {
1937 "Warning: Unable to add custom extension %u, skipping\n",
1938 serverinfo_types[i]);
1943 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1945 #ifndef OPENSSL_NO_CT
1946 /* Enable SCT processing, without early connection termination */
1947 if (ct_validation &&
1948 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1949 ERR_print_errors(bio_err);
1953 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1954 if (ct_validation) {
1955 ERR_print_errors(bio_err);
1960 * If CT validation is not enabled, the log list isn't needed so don't
1961 * show errors or abort. We try to load it regardless because then we
1962 * can show the names of the logs any SCTs came from (SCTs may be seen
1963 * even with validation disabled).
1969 SSL_CTX_set_verify(ctx, verify, verify_callback);
1971 if (!ctx_set_verify_locations(ctx, CAfile, noCAfile, CApath, noCApath,
1972 CAstore, noCAstore)) {
1973 ERR_print_errors(bio_err);
1977 ssl_ctx_add_crls(ctx, crls, crl_download);
1979 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1982 if (!noservername) {
1983 tlsextcbp.biodebug = bio_err;
1984 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1985 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1987 # ifndef OPENSSL_NO_SRP
1988 if (srp_arg.srplogin) {
1989 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1990 BIO_printf(bio_err, "Unable to set SRP username\n");
1993 srp_arg.msg = c_msg;
1994 srp_arg.debug = c_debug;
1995 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1996 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1997 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1998 if (c_msg || c_debug || srp_arg.amp == 0)
1999 SSL_CTX_set_srp_verify_param_callback(ctx,
2000 ssl_srp_verify_param_cb);
2004 if (dane_tlsa_domain != NULL) {
2005 if (SSL_CTX_dane_enable(ctx) <= 0) {
2007 "%s: Error enabling DANE TLSA authentication.\n",
2009 ERR_print_errors(bio_err);
2015 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
2016 * come at any time. Therefore we use a callback to write out the session
2017 * when we know about it. This approach works for < TLSv1.3 as well.
2019 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
2020 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
2021 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
2023 if (set_keylog_file(ctx, keylog_file))
2031 SSL_set_post_handshake_auth(con, 1);
2033 if (sess_in != NULL) {
2035 BIO *stmp = BIO_new_file(sess_in, "r");
2037 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2038 ERR_print_errors(bio_err);
2041 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2044 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2045 ERR_print_errors(bio_err);
2048 if (!SSL_set_session(con, sess)) {
2049 BIO_printf(bio_err, "Can't set session\n");
2050 ERR_print_errors(bio_err);
2054 SSL_SESSION_free(sess);
2058 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
2060 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
2061 if (servername == NULL) {
2062 if(host == NULL || is_dNS_name(host))
2063 servername = (host == NULL) ? "localhost" : host;
2065 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
2066 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2067 ERR_print_errors(bio_err);
2072 if (dane_tlsa_domain != NULL) {
2073 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2074 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2075 "authentication.\n", prog);
2076 ERR_print_errors(bio_err);
2079 if (dane_tlsa_rrset == NULL) {
2080 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2081 "least one -dane_tlsa_rrdata option.\n", prog);
2084 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2085 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2086 "records.\n", prog);
2089 if (dane_ee_no_name)
2090 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2091 } else if (dane_tlsa_rrset != NULL) {
2092 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2093 "-dane_tlsa_domain option.\n", prog);
2098 if (init_client(&s, host, port, bindhost, bindport, socket_family,
2099 socket_type, protocol) == 0) {
2100 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2104 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
2107 if (!BIO_socket_nbio(s, 1)) {
2108 ERR_print_errors(bio_err);
2111 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2113 #ifndef OPENSSL_NO_DTLS
2115 union BIO_sock_info_u peer_info;
2117 #ifndef OPENSSL_NO_SCTP
2118 if (protocol == IPPROTO_SCTP)
2119 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2122 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2124 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2125 BIO_printf(bio_err, "memory allocation failure\n");
2129 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2130 BIO_printf(bio_err, "getsockname:errno=%d\n",
2131 get_last_socket_error());
2132 BIO_ADDR_free(peer_info.addr);
2137 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2138 BIO_ADDR_free(peer_info.addr);
2139 peer_info.addr = NULL;
2141 if (enable_timeouts) {
2143 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2144 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2147 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2148 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2152 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2153 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2154 DTLS_get_link_min_mtu(con));
2158 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2159 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2160 BIO_printf(bio_err, "Failed to set MTU\n");
2165 /* want to do MTU discovery */
2166 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2169 #endif /* OPENSSL_NO_DTLS */
2170 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2175 test = BIO_new(BIO_f_nbio_test());
2176 sbio = BIO_push(test, sbio);
2180 BIO_set_callback(sbio, bio_dump_callback);
2181 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2184 #ifndef OPENSSL_NO_SSL_TRACE
2186 SSL_set_msg_callback(con, SSL_trace);
2189 SSL_set_msg_callback(con, msg_cb);
2190 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2193 if (c_tlsextdebug) {
2194 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2195 SSL_set_tlsext_debug_arg(con, bio_c_out);
2197 #ifndef OPENSSL_NO_OCSP
2199 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2200 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2201 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2205 SSL_set_bio(con, sbio, sbio);
2206 SSL_set_connect_state(con);
2208 /* ok, lets connect */
2209 if (fileno_stdin() > SSL_get_fd(con))
2210 width = fileno_stdin() + 1;
2212 width = SSL_get_fd(con) + 1;
2225 switch ((PROTOCOL_CHOICE) starttls_proto) {
2232 * This is an ugly hack that does a lot of assumptions. We do
2233 * have to handle multi-line responses which may come in a single
2234 * packet or not. We therefore have to use BIO_gets() which does
2235 * need a buffering BIO. So during the initial chitchat we do
2236 * push a buffering BIO into the chain that is removed again
2237 * later on to not disturb the rest of the s_client operation.
2240 BIO *fbio = BIO_new(BIO_f_buffer());
2242 BIO_push(fbio, sbio);
2243 /* Wait for multi-line response to end from LMTP or SMTP */
2245 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2246 } while (mbuf_len > 3 && mbuf[3] == '-');
2247 if (protohost == NULL)
2248 protohost = "mail.example.com";
2249 if (starttls_proto == (int)PROTO_LMTP)
2250 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2252 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2253 (void)BIO_flush(fbio);
2255 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2259 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2260 if (strstr(mbuf, "STARTTLS"))
2262 } while (mbuf_len > 3 && mbuf[3] == '-');
2263 (void)BIO_flush(fbio);
2268 "Didn't find STARTTLS in server response,"
2269 " trying anyway...\n");
2270 BIO_printf(sbio, "STARTTLS\r\n");
2271 BIO_read(sbio, sbuf, BUFSIZZ);
2276 BIO_read(sbio, mbuf, BUFSIZZ);
2277 BIO_printf(sbio, "STLS\r\n");
2278 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2280 BIO_printf(bio_err, "BIO_read failed\n");
2288 BIO *fbio = BIO_new(BIO_f_buffer());
2290 BIO_push(fbio, sbio);
2291 BIO_gets(fbio, mbuf, BUFSIZZ);
2292 /* STARTTLS command requires CAPABILITY... */
2293 BIO_printf(fbio, ". CAPABILITY\r\n");
2294 (void)BIO_flush(fbio);
2295 /* wait for multi-line CAPABILITY response */
2297 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2298 if (strstr(mbuf, "STARTTLS"))
2301 while (mbuf_len > 3 && mbuf[0] != '.');
2302 (void)BIO_flush(fbio);
2307 "Didn't find STARTTLS in server response,"
2308 " trying anyway...\n");
2309 BIO_printf(sbio, ". STARTTLS\r\n");
2310 BIO_read(sbio, sbuf, BUFSIZZ);
2315 BIO *fbio = BIO_new(BIO_f_buffer());
2317 BIO_push(fbio, sbio);
2318 /* wait for multi-line response to end from FTP */
2320 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2322 while (mbuf_len > 3 && (!isdigit(mbuf[0]) || !isdigit(mbuf[1]) || !isdigit(mbuf[2]) || mbuf[3] != ' '));
2323 (void)BIO_flush(fbio);
2326 BIO_printf(sbio, "AUTH TLS\r\n");
2327 BIO_read(sbio, sbuf, BUFSIZZ);
2331 case PROTO_XMPP_SERVER:
2334 BIO_printf(sbio, "<stream:stream "
2335 "xmlns:stream='http://etherx.jabber.org/streams' "
2336 "xmlns='jabber:%s' to='%s' version='1.0'>",
2337 starttls_proto == PROTO_XMPP ? "client" : "server",
2338 protohost ? protohost : host);
2339 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2341 BIO_printf(bio_err, "BIO_read failed\n");
2346 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2348 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2350 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2358 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2359 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2361 BIO_printf(bio_err, "BIO_read failed\n");
2365 if (!strstr(sbuf, "<proceed"))
2372 static const unsigned char tls_do[] = {
2373 /* IAC DO START_TLS */
2376 static const unsigned char tls_will[] = {
2377 /* IAC WILL START_TLS */
2380 static const unsigned char tls_follows[] = {
2381 /* IAC SB START_TLS FOLLOWS IAC SE */
2382 255, 250, 46, 1, 255, 240
2386 /* Telnet server should demand we issue START_TLS */
2387 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2388 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2390 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2391 BIO_write(sbio, tls_will, 3);
2392 BIO_write(sbio, tls_follows, 6);
2393 (void)BIO_flush(sbio);
2394 /* Telnet server also sent the FOLLOWS sub-command */
2395 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2396 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2403 error_proto, /* Wrong protocol, not even HTTP */
2404 error_connect, /* CONNECT failed */
2406 } foundit = error_connect;
2407 BIO *fbio = BIO_new(BIO_f_buffer());
2409 BIO_push(fbio, sbio);
2410 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n", connectstr);
2412 * Workaround for broken proxies which would otherwise close
2413 * the connection when entering tunnel mode (eg Squid 2.6)
2415 BIO_printf(fbio, "Proxy-Connection: Keep-Alive\r\n");
2417 /* Support for basic (base64) proxy authentication */
2418 if (proxyuser != NULL) {
2420 char *proxyauth, *proxyauthenc;
2422 l = strlen(proxyuser);
2423 if (proxypass != NULL)
2424 l += strlen(proxypass);
2425 proxyauth = app_malloc(l + 2, "Proxy auth string");
2426 BIO_snprintf(proxyauth, l + 2, "%s:%s", proxyuser,
2427 (proxypass != NULL) ? proxypass : "");
2428 proxyauthenc = base64encode(proxyauth, strlen(proxyauth));
2429 BIO_printf(fbio, "Proxy-Authorization: Basic %s\r\n",
2431 OPENSSL_clear_free(proxyauth, strlen(proxyauth));
2432 OPENSSL_clear_free(proxyauthenc, strlen(proxyauthenc));
2435 /* Terminate the HTTP CONNECT request */
2436 BIO_printf(fbio, "\r\n");
2437 (void)BIO_flush(fbio);
2439 * The first line is the HTTP response. According to RFC 7230,
2440 * it's formatted exactly like this:
2442 * HTTP/d.d ddd Reason text\r\n
2444 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2445 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2447 "%s: HTTP CONNECT failed, insufficient response "
2448 "from proxy (got %d octets)\n", prog, mbuf_len);
2449 (void)BIO_flush(fbio);
2454 if (mbuf[8] != ' ') {
2456 "%s: HTTP CONNECT failed, incorrect response "
2457 "from proxy\n", prog);
2458 foundit = error_proto;
2459 } else if (mbuf[9] != '2') {
2460 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2465 if (foundit != error_proto) {
2466 /* Read past all following headers */
2468 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2469 } while (mbuf_len > 2);
2471 (void)BIO_flush(fbio);
2474 if (foundit != success) {
2482 BIO *fbio = BIO_new(BIO_f_buffer());
2484 BIO_push(fbio, sbio);
2485 BIO_printf(fbio, "STARTTLS\r\n");
2486 (void)BIO_flush(fbio);
2487 width = SSL_get_fd(con) + 1;
2493 openssl_fdset(SSL_get_fd(con), &readfds);
2494 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2495 timeout.tv_usec = 0;
2497 * If the IRCd doesn't respond within
2498 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2499 * it doesn't support STARTTLS. Many IRCds
2500 * will not give _any_ sort of response to a
2501 * STARTTLS command when it's not supported.
2503 if (!BIO_get_buffer_num_lines(fbio)
2504 && !BIO_pending(fbio)
2505 && !BIO_pending(sbio)
2506 && select(width, (void *)&readfds, NULL, NULL,
2509 "Timeout waiting for response (%d seconds).\n",
2510 S_CLIENT_IRC_READ_TIMEOUT);
2514 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2515 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2517 /* :example.net 451 STARTTLS :You have not registered */
2518 /* :example.net 421 STARTTLS :Unknown command */
2519 if ((numeric == 451 || numeric == 421)
2520 && strstr(mbuf, "STARTTLS") != NULL) {
2521 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2524 if (numeric == 691) {
2525 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2526 ERR_print_errors(bio_err);
2529 } while (numeric != 670);
2531 (void)BIO_flush(fbio);
2534 if (numeric != 670) {
2535 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2543 /* SSL request packet */
2544 static const unsigned char ssl_req[] = {
2545 /* payload_length, sequence_id */
2546 0x20, 0x00, 0x00, 0x01,
2548 /* capability flags, CLIENT_SSL always set */
2549 0x85, 0xae, 0x7f, 0x00,
2550 /* max-packet size */
2551 0x00, 0x00, 0x00, 0x01,
2554 /* string[23] reserved (all [0]) */
2555 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2556 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2557 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2560 int ssl_flg = 0x800;
2562 const unsigned char *packet = (const unsigned char *)sbuf;
2564 /* Receiving Initial Handshake packet. */
2565 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2567 BIO_printf(bio_err, "BIO_read failed\n");
2569 /* Packet length[3], Packet number[1] + minimum payload[17] */
2570 } else if (bytes < 21) {
2571 BIO_printf(bio_err, "MySQL packet too short.\n");
2573 } else if (bytes != (4 + packet[0] +
2575 (packet[2] << 16))) {
2576 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2578 /* protocol version[1] */
2579 } else if (packet[4] != 0xA) {
2581 "Only MySQL protocol version 10 is supported.\n");
2586 /* server version[string+NULL] */
2589 BIO_printf(bio_err, "Cannot confirm server version. ");
2591 } else if (packet[pos++] == '\0') {
2596 /* make sure we have at least 15 bytes left in the packet */
2597 if (pos + 15 > bytes) {
2599 "MySQL server handshake packet is broken.\n");
2603 pos += 12; /* skip over conn id[4] + SALT[8] */
2604 if (packet[pos++] != '\0') { /* verify filler */
2606 "MySQL packet is broken.\n");
2610 /* capability flags[2] */
2611 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2612 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2616 /* Sending SSL Handshake packet. */
2617 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2618 (void)BIO_flush(sbio);
2621 case PROTO_POSTGRES:
2623 static const unsigned char ssl_request[] = {
2624 /* Length SSLRequest */
2625 0, 0, 0, 8, 4, 210, 22, 47
2629 /* Send SSLRequest packet */
2630 BIO_write(sbio, ssl_request, 8);
2631 (void)BIO_flush(sbio);
2633 /* Reply will be a single S if SSL is enabled */
2634 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2635 if (bytes != 1 || sbuf[0] != 'S')
2642 BIO *fbio = BIO_new(BIO_f_buffer());
2644 BIO_push(fbio, sbio);
2645 BIO_gets(fbio, mbuf, BUFSIZZ);
2646 /* STARTTLS command requires CAPABILITIES... */
2647 BIO_printf(fbio, "CAPABILITIES\r\n");
2648 (void)BIO_flush(fbio);
2649 BIO_gets(fbio, mbuf, BUFSIZZ);
2650 /* no point in trying to parse the CAPABILITIES response if there is none */
2651 if (strstr(mbuf, "101") != NULL) {
2652 /* wait for multi-line CAPABILITIES response */
2654 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2655 if (strstr(mbuf, "STARTTLS"))
2657 } while (mbuf_len > 1 && mbuf[0] != '.');
2659 (void)BIO_flush(fbio);
2664 "Didn't find STARTTLS in server response,"
2665 " trying anyway...\n");
2666 BIO_printf(sbio, "STARTTLS\r\n");
2667 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2669 BIO_printf(bio_err, "BIO_read failed\n");
2672 mbuf[mbuf_len] = '\0';
2673 if (strstr(mbuf, "382") == NULL) {
2674 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2682 BIO *fbio = BIO_new(BIO_f_buffer());
2684 BIO_push(fbio, sbio);
2685 /* wait for multi-line response to end from Sieve */
2687 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2689 * According to RFC 5804 § 1.7, capability
2690 * is case-insensitive, make it uppercase
2692 if (mbuf_len > 1 && mbuf[0] == '"') {
2693 make_uppercase(mbuf);
2694 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2697 } while (mbuf_len > 1 && mbuf[0] == '"');
2698 (void)BIO_flush(fbio);
2703 "Didn't find STARTTLS in server response,"
2704 " trying anyway...\n");
2705 BIO_printf(sbio, "STARTTLS\r\n");
2706 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2708 BIO_printf(bio_err, "BIO_read failed\n");
2711 mbuf[mbuf_len] = '\0';
2713 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2717 * According to RFC 5804 § 2.2, response codes are case-
2718 * insensitive, make it uppercase but preserve the response.
2720 strncpy(sbuf, mbuf, 2);
2721 make_uppercase(sbuf);
2722 if (strncmp(sbuf, "OK", 2) != 0) {
2723 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2730 /* StartTLS Operation according to RFC 4511 */
2731 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2733 "messageID=INTEGER:1\n"
2734 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2735 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2737 char *genstr = NULL;
2739 ASN1_TYPE *atyp = NULL;
2740 BIO *ldapbio = BIO_new(BIO_s_mem());
2741 CONF *cnf = NCONF_new(NULL);
2747 BIO_puts(ldapbio, ldap_tls_genconf);
2748 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2752 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2755 BIO_printf(bio_err, "Error on line %ld\n", errline);
2760 genstr = NCONF_get_string(cnf, "default", "asn1");
2761 if (genstr == NULL) {
2763 BIO_printf(bio_err, "NCONF_get_string failed\n");
2766 atyp = ASN1_generate_nconf(genstr, cnf);
2769 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2774 /* Send SSLRequest packet */
2775 BIO_write(sbio, atyp->value.sequence->data,
2776 atyp->value.sequence->length);
2777 (void)BIO_flush(sbio);
2778 ASN1_TYPE_free(atyp);
2780 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2782 BIO_printf(bio_err, "BIO_read failed\n");
2785 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2787 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2789 } else if (result > 0) {
2790 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2799 if (early_data_file != NULL
2800 && ((SSL_get0_session(con) != NULL
2801 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2803 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2804 BIO *edfile = BIO_new_file(early_data_file, "r");
2805 size_t readbytes, writtenbytes;
2808 if (edfile == NULL) {
2809 BIO_printf(bio_err, "Cannot open early data file\n");
2814 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2817 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2818 switch (SSL_get_error(con, 0)) {
2819 case SSL_ERROR_WANT_WRITE:
2820 case SSL_ERROR_WANT_ASYNC:
2821 case SSL_ERROR_WANT_READ:
2822 /* Just keep trying - busy waiting */
2825 BIO_printf(bio_err, "Error writing early data\n");
2827 ERR_print_errors(bio_err);
2840 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2841 timeoutp = &timeout;
2845 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2846 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2855 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2856 print_ssl_summary(con);
2859 print_stuff(bio_c_out, con, full_log);
2863 if (starttls_proto) {
2864 BIO_write(bio_err, mbuf, mbuf_len);
2865 /* We don't need to know any more */
2867 starttls_proto = PROTO_OFF;
2872 BIO_printf(bio_c_out,
2873 "drop connection and then reconnect\n");
2874 do_ssl_shutdown(con);
2875 SSL_set_connect_state(con);
2876 BIO_closesocket(SSL_get_fd(con));
2882 ssl_pending = read_ssl && SSL_has_pending(con);
2885 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2888 * Note that select() returns when read _would not block_,
2889 * and EOF satisfies that. To avoid a CPU-hogging loop,
2890 * set the flag so we exit.
2892 if (read_tty && !at_eof)
2893 openssl_fdset(fileno_stdin(), &readfds);
2894 #if !defined(OPENSSL_SYS_VMS)
2896 openssl_fdset(fileno_stdout(), &writefds);
2900 openssl_fdset(SSL_get_fd(con), &readfds);
2902 openssl_fdset(SSL_get_fd(con), &writefds);
2904 if (!tty_on || !write_tty) {
2906 openssl_fdset(SSL_get_fd(con), &readfds);
2908 openssl_fdset(SSL_get_fd(con), &writefds);
2913 * Note: under VMS with SOCKETSHR the second parameter is
2914 * currently of type (int *) whereas under other systems it is
2915 * (void *) if you don't have a cast it will choke the compiler:
2916 * if you do have a cast then you can either go for (int *) or
2919 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2921 * Under Windows/DOS we make the assumption that we can always
2922 * write to the tty: therefore if we need to write to the tty we
2923 * just fall through. Otherwise we timeout the select every
2924 * second and see if there are any keypresses. Note: this is a
2925 * hack, in a proper Windows application we wouldn't do this.
2932 i = select(width, (void *)&readfds, (void *)&writefds,
2934 if (!i && (!has_stdin_waiting() || !read_tty))
2937 i = select(width, (void *)&readfds, (void *)&writefds,
2941 i = select(width, (void *)&readfds, (void *)&writefds,
2945 BIO_printf(bio_err, "bad select %d\n",
2946 get_last_socket_error());
2951 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2952 BIO_printf(bio_err, "TIMEOUT occurred\n");
2954 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2955 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2956 switch (SSL_get_error(con, k)) {
2957 case SSL_ERROR_NONE:
2962 /* we have done a write(con,NULL,0); */
2963 if (cbuf_len <= 0) {
2966 } else { /* if (cbuf_len > 0) */
2972 case SSL_ERROR_WANT_WRITE:
2973 BIO_printf(bio_c_out, "write W BLOCK\n");
2977 case SSL_ERROR_WANT_ASYNC:
2978 BIO_printf(bio_c_out, "write A BLOCK\n");
2979 wait_for_async(con);
2983 case SSL_ERROR_WANT_READ:
2984 BIO_printf(bio_c_out, "write R BLOCK\n");
2989 case SSL_ERROR_WANT_X509_LOOKUP:
2990 BIO_printf(bio_c_out, "write X BLOCK\n");
2992 case SSL_ERROR_ZERO_RETURN:
2993 if (cbuf_len != 0) {
2994 BIO_printf(bio_c_out, "shutdown\n");
3003 case SSL_ERROR_SYSCALL:
3004 if ((k != 0) || (cbuf_len != 0)) {
3005 BIO_printf(bio_err, "write:errno=%d\n",
3006 get_last_socket_error());
3013 case SSL_ERROR_WANT_ASYNC_JOB:
3014 /* This shouldn't ever happen in s_client - treat as an error */
3016 ERR_print_errors(bio_err);
3020 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
3021 /* Assume Windows/DOS/BeOS can always write */
3022 else if (!ssl_pending && write_tty)
3024 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
3027 #ifdef CHARSET_EBCDIC
3028 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
3030 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
3033 BIO_printf(bio_c_out, "DONE\n");
3040 if (sbuf_len <= 0) {
3044 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
3049 SSL_renegotiate(con);
3054 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
3056 switch (SSL_get_error(con, k)) {
3057 case SSL_ERROR_NONE:
3066 case SSL_ERROR_WANT_ASYNC:
3067 BIO_printf(bio_c_out, "read A BLOCK\n");
3068 wait_for_async(con);
3071 if ((read_tty == 0) && (write_ssl == 0))
3074 case SSL_ERROR_WANT_WRITE:
3075 BIO_printf(bio_c_out, "read W BLOCK\n");
3079 case SSL_ERROR_WANT_READ:
3080 BIO_printf(bio_c_out, "read R BLOCK\n");
3083 if ((read_tty == 0) && (write_ssl == 0))
3086 case SSL_ERROR_WANT_X509_LOOKUP:
3087 BIO_printf(bio_c_out, "read X BLOCK\n");
3089 case SSL_ERROR_SYSCALL:
3090 ret = get_last_socket_error();
3092 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
3094 BIO_printf(bio_err, "read:errno=%d\n", ret);
3096 case SSL_ERROR_ZERO_RETURN:
3097 BIO_printf(bio_c_out, "closed\n");
3100 case SSL_ERROR_WANT_ASYNC_JOB:
3101 /* This shouldn't ever happen in s_client. Treat as an error */
3103 ERR_print_errors(bio_err);
3107 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3108 #if defined(OPENSSL_SYS_MSDOS)
3109 else if (has_stdin_waiting())
3111 else if (FD_ISSET(fileno_stdin(), &readfds))
3117 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3119 /* both loops are skipped when i <= 0 */
3120 for (j = 0; j < i; j++)
3121 if (cbuf[j] == '\n')
3123 for (j = i - 1; j >= 0; j--) {
3124 cbuf[j + lf_num] = cbuf[j];
3125 if (cbuf[j] == '\n') {
3128 cbuf[j + lf_num] = '\r';
3131 assert(lf_num == 0);
3133 i = raw_read_stdin(cbuf, BUFSIZZ);
3134 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3139 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3140 BIO_printf(bio_err, "DONE\n");
3145 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3146 BIO_printf(bio_err, "RENEGOTIATING\n");
3147 SSL_renegotiate(con);
3149 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3151 BIO_printf(bio_err, "KEYUPDATE\n");
3153 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3154 : SSL_KEY_UPDATE_NOT_REQUESTED);
3159 #ifdef CHARSET_EBCDIC
3160 ebcdic2ascii(cbuf, cbuf, i);
3172 print_stuff(bio_c_out, con, full_log);
3173 do_ssl_shutdown(con);
3176 * If we ended with an alert being sent, but still with data in the
3177 * network buffer to be read, then calling BIO_closesocket() will
3178 * result in a TCP-RST being sent. On some platforms (notably
3179 * Windows) then this will result in the peer immediately abandoning
3180 * the connection including any buffered alert data before it has
3181 * had a chance to be read. Shutting down the sending side first,
3182 * and then closing the socket sends TCP-FIN first followed by
3183 * TCP-RST. This seems to allow the peer to read the alert data.
3185 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3187 * We just said we have nothing else to say, but it doesn't mean that
3188 * the other side has nothing. It's even recommended to consume incoming
3189 * data. [In testing context this ensures that alerts are passed on...]
3192 timeout.tv_usec = 500000; /* some extreme round-trip */
3195 openssl_fdset(s, &readfds);
3196 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0
3197 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3199 BIO_closesocket(SSL_get_fd(con));
3203 print_stuff(bio_c_out, con, 1);
3206 SSL_SESSION_free(psksess);
3207 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3208 OPENSSL_free(next_proto.data);
3211 set_keylog_file(NULL, NULL);
3213 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3215 sk_X509_pop_free(chain, X509_free);
3217 #ifndef OPENSSL_NO_SRP
3218 OPENSSL_free(srp_arg.srppassin);
3220 OPENSSL_free(connectstr);
3221 OPENSSL_free(bindstr);
3224 X509_VERIFY_PARAM_free(vpm);
3225 ssl_excert_free(exc);
3226 sk_OPENSSL_STRING_free(ssl_args);
3227 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3228 SSL_CONF_CTX_free(cctx);
3229 OPENSSL_clear_free(cbuf, BUFSIZZ);
3230 OPENSSL_clear_free(sbuf, BUFSIZZ);
3231 OPENSSL_clear_free(mbuf, BUFSIZZ);
3232 if (proxypass != NULL)
3233 OPENSSL_clear_free(proxypass, strlen(proxypass));
3235 BIO_free(bio_c_out);
3237 BIO_free(bio_c_msg);
3242 static void print_stuff(BIO *bio, SSL *s, int full)
3246 const SSL_CIPHER *c;
3247 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3249 #ifndef OPENSSL_NO_COMP
3250 const COMP_METHOD *comp, *expansion;
3252 unsigned char *exportedkeymat;
3253 #ifndef OPENSSL_NO_CT
3254 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3258 int got_a_chain = 0;
3260 sk = SSL_get_peer_cert_chain(s);
3264 BIO_printf(bio, "---\nCertificate chain\n");
3265 for (i = 0; i < sk_X509_num(sk); i++) {
3266 BIO_printf(bio, "%2d s:", i);
3267 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3268 BIO_puts(bio, "\n");
3269 BIO_printf(bio, " i:");
3270 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3271 BIO_puts(bio, "\n");
3273 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3277 BIO_printf(bio, "---\n");
3278 peer = SSL_get_peer_certificate(s);
3280 BIO_printf(bio, "Server certificate\n");
3282 /* Redundant if we showed the whole chain */
3283 if (!(c_showcerts && got_a_chain))
3284 PEM_write_bio_X509(bio, peer);
3285 dump_cert_text(bio, peer);
3287 BIO_printf(bio, "no peer certificate available\n");
3289 print_ca_names(bio, s);
3291 ssl_print_sigalgs(bio, s);
3292 ssl_print_tmp_key(bio, s);
3294 #ifndef OPENSSL_NO_CT
3296 * When the SSL session is anonymous, or resumed via an abbreviated
3297 * handshake, no SCTs are provided as part of the handshake. While in
3298 * a resumed session SCTs may be present in the session's certificate,
3299 * no callbacks are invoked to revalidate these, and in any case that
3300 * set of SCTs may be incomplete. Thus it makes little sense to
3301 * attempt to display SCTs from a resumed session's certificate, and of
3302 * course none are associated with an anonymous peer.
3304 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3305 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3306 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3308 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3309 if (sct_count > 0) {
3310 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3312 BIO_printf(bio, "---\n");
3313 for (i = 0; i < sct_count; ++i) {
3314 SCT *sct = sk_SCT_value(scts, i);
3316 BIO_printf(bio, "SCT validation status: %s\n",
3317 SCT_validation_status_string(sct));
3318 SCT_print(sct, bio, 0, log_store);
3319 if (i < sct_count - 1)
3320 BIO_printf(bio, "\n---\n");
3322 BIO_printf(bio, "\n");
3328 "---\nSSL handshake has read %ju bytes "
3329 "and written %ju bytes\n",
3330 BIO_number_read(SSL_get_rbio(s)),
3331 BIO_number_written(SSL_get_wbio(s)));
3333 print_verify_detail(s, bio);
3334 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3335 c = SSL_get_current_cipher(s);
3336 BIO_printf(bio, "%s, Cipher is %s\n",
3337 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3341 pktmp = X509_get0_pubkey(peer);
3342 BIO_printf(bio, "Server public key is %d bit\n",
3343 EVP_PKEY_bits(pktmp));
3345 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3346 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3347 #ifndef OPENSSL_NO_COMP
3348 comp = SSL_get_current_compression(s);
3349 expansion = SSL_get_current_expansion(s);
3350 BIO_printf(bio, "Compression: %s\n",
3351 comp ? SSL_COMP_get_name(comp) : "NONE");
3352 BIO_printf(bio, "Expansion: %s\n",
3353 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3355 #ifndef OPENSSL_NO_KTLS
3356 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3357 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3358 if (BIO_get_ktls_recv(SSL_get_rbio(s)))
3359 BIO_printf(bio_err, "Using Kernel TLS for receiving\n");
3362 if (OSSL_TRACE_ENABLED(TLS)) {
3363 /* Print out local port of connection: useful for debugging */
3365 union BIO_sock_info_u info;
3367 sock = SSL_get_fd(s);
3368 if ((info.addr = BIO_ADDR_new()) != NULL
3369 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3370 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3371 ntohs(BIO_ADDR_rawport(info.addr)));
3373 BIO_ADDR_free(info.addr);
3376 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3377 if (next_proto.status != -1) {
3378 const unsigned char *proto;
3379 unsigned int proto_len;
3380 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3381 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3382 BIO_write(bio, proto, proto_len);
3383 BIO_write(bio, "\n", 1);
3387 const unsigned char *proto;
3388 unsigned int proto_len;
3389 SSL_get0_alpn_selected(s, &proto, &proto_len);
3390 if (proto_len > 0) {
3391 BIO_printf(bio, "ALPN protocol: ");
3392 BIO_write(bio, proto, proto_len);
3393 BIO_write(bio, "\n", 1);
3395 BIO_printf(bio, "No ALPN negotiated\n");
3398 #ifndef OPENSSL_NO_SRTP
3400 SRTP_PROTECTION_PROFILE *srtp_profile =
3401 SSL_get_selected_srtp_profile(s);
3404 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3405 srtp_profile->name);
3410 switch (SSL_get_early_data_status(s)) {
3411 case SSL_EARLY_DATA_NOT_SENT:
3412 BIO_printf(bio, "Early data was not sent\n");
3415 case SSL_EARLY_DATA_REJECTED:
3416 BIO_printf(bio, "Early data was rejected\n");
3419 case SSL_EARLY_DATA_ACCEPTED:
3420 BIO_printf(bio, "Early data was accepted\n");
3426 * We also print the verify results when we dump session information,
3427 * but in TLSv1.3 we may not get that right away (or at all) depending
3428 * on when we get a NewSessionTicket. Therefore we print it now as well.
3430 verify_result = SSL_get_verify_result(s);
3431 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3432 X509_verify_cert_error_string(verify_result));
3434 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3435 SSL_SESSION_print(bio, SSL_get_session(s));
3438 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3439 BIO_printf(bio, "Keying material exporter:\n");
3440 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3441 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3442 exportedkeymat = app_malloc(keymatexportlen, "export key");
3443 if (!SSL_export_keying_material(s, exportedkeymat,
3446 strlen(keymatexportlabel),
3448 BIO_printf(bio, " Error\n");
3450 BIO_printf(bio, " Keying material: ");
3451 for (i = 0; i < keymatexportlen; i++)
3452 BIO_printf(bio, "%02X", exportedkeymat[i]);
3453 BIO_printf(bio, "\n");
3455 OPENSSL_free(exportedkeymat);
3457 BIO_printf(bio, "---\n");
3459 /* flush, or debugging output gets mixed with http response */
3460 (void)BIO_flush(bio);
3463 # ifndef OPENSSL_NO_OCSP
3464 static int ocsp_resp_cb(SSL *s, void *arg)
3466 const unsigned char *p;
3469 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3470 BIO_puts(arg, "OCSP response: ");
3472 BIO_puts(arg, "no response sent\n");
3475 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3477 BIO_puts(arg, "response parse error\n");
3478 BIO_dump_indent(arg, (char *)p, len, 4);
3481 BIO_puts(arg, "\n======================================\n");
3482 OCSP_RESPONSE_print(arg, rsp, 0);
3483 BIO_puts(arg, "======================================\n");
3484 OCSP_RESPONSE_free(rsp);
3489 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3491 const unsigned char *cur, *end;
3493 int tag, xclass, inf, ret = -1;
3495 cur = (const unsigned char *)buf;
3501 * LDAPMessage ::= SEQUENCE {
3502 * messageID MessageID,
3503 * protocolOp CHOICE {
3505 * extendedResp ExtendedResponse,
3507 * controls [0] Controls OPTIONAL }
3509 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3510 * COMPONENTS OF LDAPResult,
3511 * responseName [10] LDAPOID OPTIONAL,
3512 * responseValue [11] OCTET STRING OPTIONAL }
3514 * LDAPResult ::= SEQUENCE {
3515 * resultCode ENUMERATED {
3521 * diagnosticMessage LDAPString,
3522 * referral [3] Referral OPTIONAL }
3526 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3527 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3528 (rem = end - cur, len > rem)) {
3529 BIO_printf(bio_err, "Unexpected LDAP response\n");
3533 rem = len; /* ensure that we don't overstep the SEQUENCE */
3535 /* pull MessageID */
3536 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3537 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3538 (rem = end - cur, len > rem)) {
3539 BIO_printf(bio_err, "No MessageID\n");
3543 cur += len; /* shall we check for MessageId match or just skip? */
3545 /* pull [APPLICATION 24] */
3547 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3548 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3550 BIO_printf(bio_err, "Not ExtendedResponse\n");
3554 /* pull resultCode */
3556 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3557 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3558 (rem = end - cur, len > rem)) {
3559 BIO_printf(bio_err, "Not LDAPResult\n");
3563 /* len should always be one, but just in case... */
3564 for (ret = 0, inf = 0; inf < len; inf++) {
3568 /* There is more data, but we don't care... */
3574 * BASE64 encoder: used only for encoding basic proxy authentication credentials
3576 static char *base64encode (const void *buf, size_t len)
3582 /* Calculate size of encoded data */
3587 out = app_malloc(outl + 1, "base64 encode buffer");
3589 i = EVP_EncodeBlock((unsigned char *)out, buf, len);
3590 assert(i <= (int)outl);
3597 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3598 * before setting it as SNI
3600 static int is_dNS_name(const char *host)
3602 const size_t MAX_LABEL_LENGTH = 63;
3605 size_t length = strlen(host);
3606 size_t label_length = 0;
3607 int all_numeric = 1;
3610 * Deviation from strict DNS name syntax, also check names with '_'
3611 * Check DNS name syntax, any '-' or '.' must be internal,
3612 * and on either side of each '.' we can't have a '-' or '.'.
3614 * If the name has just one label, we don't consider it a DNS name.
3616 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3619 if ((c >= 'a' && c <= 'z')
3620 || (c >= 'A' && c <= 'Z')
3627 if (c >= '0' && c <= '9') {
3632 /* Dot and hyphen cannot be first or last. */
3633 if (i > 0 && i < length - 1) {
3639 * Next to a dot the preceding and following characters must not be
3640 * another dot or a hyphen. Otherwise, record that the name is
3641 * plausible, since it has two or more labels.
3644 && host[i + 1] != '.'
3645 && host[i - 1] != '-'
3646 && host[i + 1] != '-') {
3656 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3657 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3661 #endif /* OPENSSL_NO_SOCK */