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/async.h>
42 #ifndef OPENSSL_NO_SRP
43 # include <openssl/srp.h>
46 # include <openssl/ct.h>
50 #include "internal/sockets.h"
52 #if defined(__has_feature)
53 # if __has_feature(memory_sanitizer)
54 # include <sanitizer/msan_interface.h>
59 #define BUFSIZZ 1024*8
60 #define S_CLIENT_IRC_READ_TIMEOUT 8
63 static int c_debug = 0;
64 static int c_showcerts = 0;
65 static char *keymatexportlabel = NULL;
66 static int keymatexportlen = 20;
67 static BIO *bio_c_out = NULL;
68 static int c_quiet = 0;
69 static char *sess_out = NULL;
70 static SSL_SESSION *psksess = NULL;
72 static void print_stuff(BIO *berr, SSL *con, int full);
73 #ifndef OPENSSL_NO_OCSP
74 static int ocsp_resp_cb(SSL *s, void *arg);
76 static int ldap_ExtendedResponse_parse(const char *buf, long rem);
77 static char *base64encode (const void *buf, size_t len);
78 static int is_dNS_name(const char *host);
80 static int saved_errno;
82 static void save_errno(void)
88 static int restore_errno(void)
95 static void do_ssl_shutdown(SSL *ssl)
100 /* We only do unidirectional shutdown */
101 ret = SSL_shutdown(ssl);
103 switch (SSL_get_error(ssl, ret)) {
104 case SSL_ERROR_WANT_READ:
105 case SSL_ERROR_WANT_WRITE:
106 case SSL_ERROR_WANT_ASYNC:
107 case SSL_ERROR_WANT_ASYNC_JOB:
108 /* We just do busy waiting. Nothing clever */
116 /* Default PSK identity and key */
117 static char *psk_identity = "Client_identity";
119 #ifndef OPENSSL_NO_PSK
120 static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity,
121 unsigned int max_identity_len,
123 unsigned int max_psk_len)
130 BIO_printf(bio_c_out, "psk_client_cb\n");
132 /* no ServerKeyExchange message */
134 BIO_printf(bio_c_out,
135 "NULL received PSK identity hint, continuing anyway\n");
136 } else if (c_debug) {
137 BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint);
141 * lookup PSK identity and PSK key based on the given identity hint here
143 ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity);
144 if (ret < 0 || (unsigned int)ret > max_identity_len)
147 BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity,
150 /* convert the PSK key to binary */
151 key = OPENSSL_hexstr2buf(psk_key, &key_len);
153 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
157 if (max_psk_len > INT_MAX || key_len > (long)max_psk_len) {
159 "psk buffer of callback is too small (%d) for key (%ld)\n",
160 max_psk_len, key_len);
165 memcpy(psk, key, key_len);
169 BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len);
174 BIO_printf(bio_err, "Error in PSK client callback\n");
179 const unsigned char tls13_aes128gcmsha256_id[] = { 0x13, 0x01 };
180 const unsigned char tls13_aes256gcmsha384_id[] = { 0x13, 0x02 };
182 static int psk_use_session_cb(SSL *s, const EVP_MD *md,
183 const unsigned char **id, size_t *idlen,
186 SSL_SESSION *usesess = NULL;
187 const SSL_CIPHER *cipher = NULL;
189 if (psksess != NULL) {
190 SSL_SESSION_up_ref(psksess);
194 unsigned char *key = OPENSSL_hexstr2buf(psk_key, &key_len);
197 BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n",
202 /* We default to SHA-256 */
203 cipher = SSL_CIPHER_find(s, tls13_aes128gcmsha256_id);
204 if (cipher == NULL) {
205 BIO_printf(bio_err, "Error finding suitable ciphersuite\n");
210 usesess = SSL_SESSION_new();
212 || !SSL_SESSION_set1_master_key(usesess, key, key_len)
213 || !SSL_SESSION_set_cipher(usesess, cipher)
214 || !SSL_SESSION_set_protocol_version(usesess, TLS1_3_VERSION)) {
221 cipher = SSL_SESSION_get0_cipher(usesess);
225 if (md != NULL && SSL_CIPHER_get_handshake_digest(cipher) != md) {
226 /* PSK not usable, ignore it */
230 SSL_SESSION_free(usesess);
233 *id = (unsigned char *)psk_identity;
234 *idlen = strlen(psk_identity);
240 SSL_SESSION_free(usesess);
244 /* This is a context that we pass to callbacks */
245 typedef struct tlsextctx_st {
250 static int ssl_servername_cb(SSL *s, int *ad, void *arg)
252 tlsextctx *p = (tlsextctx *) arg;
253 const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
254 if (SSL_get_servername_type(s) != -1)
255 p->ack = !SSL_session_reused(s) && hn != NULL;
257 BIO_printf(bio_err, "Can't use SSL_get_servername\n");
259 return SSL_TLSEXT_ERR_OK;
262 #ifndef OPENSSL_NO_SRP
264 /* This is a context that we pass to all callbacks */
265 typedef struct srp_arg_st {
268 int msg; /* copy from c_msg */
269 int debug; /* copy from c_debug */
270 int amp; /* allow more groups */
271 int strength; /* minimal size for N */
274 # define SRP_NUMBER_ITERATIONS_FOR_PRIME 64
276 static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g)
278 BN_CTX *bn_ctx = BN_CTX_new();
279 BIGNUM *p = BN_new();
280 BIGNUM *r = BN_new();
282 g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
283 BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
284 p != NULL && BN_rshift1(p, N) &&
286 BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
288 /* verify g^((N-1)/2) == -1 (mod N) */
289 BN_mod_exp(r, g, p, N, bn_ctx) &&
290 BN_add_word(r, 1) && BN_cmp(r, N) == 0;
299 * This callback is used here for two purposes:
300 * - extended debugging
301 * - making some primality tests for unknown groups
302 * The callback is only called for a non default group.
304 * An application does not need the call back at all if
305 * only the standard groups are used. In real life situations,
306 * client and server already share well known groups,
307 * thus there is no need to verify them.
308 * Furthermore, in case that a server actually proposes a group that
309 * is not one of those defined in RFC 5054, it is more appropriate
310 * to add the group to a static list and then compare since
311 * primality tests are rather cpu consuming.
314 static int ssl_srp_verify_param_cb(SSL *s, void *arg)
316 SRP_ARG *srp_arg = (SRP_ARG *)arg;
317 BIGNUM *N = NULL, *g = NULL;
319 if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL))
321 if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) {
322 BIO_printf(bio_err, "SRP parameters:\n");
323 BIO_printf(bio_err, "\tN=");
324 BN_print(bio_err, N);
325 BIO_printf(bio_err, "\n\tg=");
326 BN_print(bio_err, g);
327 BIO_printf(bio_err, "\n");
330 if (SRP_check_known_gN_param(g, N))
333 if (srp_arg->amp == 1) {
336 "SRP param N and g are not known params, going to check deeper.\n");
339 * The srp_moregroups is a real debugging feature. Implementors
340 * should rather add the value to the known ones. The minimal size
341 * has already been tested.
343 if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g))
346 BIO_printf(bio_err, "SRP param N and g rejected.\n");
350 # define PWD_STRLEN 1024
352 static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg)
354 SRP_ARG *srp_arg = (SRP_ARG *)arg;
355 char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer");
359 cb_tmp.password = (char *)srp_arg->srppassin;
360 cb_tmp.prompt_info = "SRP user";
361 if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) {
362 BIO_printf(bio_err, "Can't read Password\n");
373 #ifndef OPENSSL_NO_NEXTPROTONEG
374 /* This the context that we pass to next_proto_cb */
375 typedef struct tlsextnextprotoctx_st {
379 } tlsextnextprotoctx;
381 static tlsextnextprotoctx next_proto;
383 static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen,
384 const unsigned char *in, unsigned int inlen,
387 tlsextnextprotoctx *ctx = arg;
390 /* We can assume that |in| is syntactically valid. */
392 BIO_printf(bio_c_out, "Protocols advertised by server: ");
393 for (i = 0; i < inlen;) {
395 BIO_write(bio_c_out, ", ", 2);
396 BIO_write(bio_c_out, &in[i + 1], in[i]);
399 BIO_write(bio_c_out, "\n", 1);
403 SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len);
404 return SSL_TLSEXT_ERR_OK;
406 #endif /* ndef OPENSSL_NO_NEXTPROTONEG */
408 static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type,
409 const unsigned char *in, size_t inlen,
413 unsigned char ext_buf[4 + 65536];
415 /* Reconstruct the type/len fields prior to extension data */
416 inlen &= 0xffff; /* for formal memcmpy correctness */
417 ext_buf[0] = (unsigned char)(ext_type >> 8);
418 ext_buf[1] = (unsigned char)(ext_type);
419 ext_buf[2] = (unsigned char)(inlen >> 8);
420 ext_buf[3] = (unsigned char)(inlen);
421 memcpy(ext_buf + 4, in, inlen);
423 BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d",
425 PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen);
430 * Hex decoder that tolerates optional whitespace. Returns number of bytes
431 * produced, advances inptr to end of input string.
433 static ossl_ssize_t hexdecode(const char **inptr, void *result)
435 unsigned char **out = (unsigned char **)result;
436 const char *in = *inptr;
437 unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode");
438 unsigned char *cp = ret;
445 for (byte = 0; *in; ++in) {
448 if (isspace(_UC(*in)))
450 x = OPENSSL_hexchar2int(*in);
456 if ((nibble ^= 1) == 0) {
469 return cp - (*out = ret);
473 * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances
474 * inptr to next field skipping leading whitespace.
476 static ossl_ssize_t checked_uint8(const char **inptr, void *out)
478 uint8_t *result = (uint8_t *)out;
479 const char *in = *inptr;
485 v = strtol(in, &endp, 10);
488 if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) ||
489 endp == in || !isspace(_UC(*endp)) ||
490 v != (*result = (uint8_t) v)) {
493 for (in = endp; isspace(_UC(*in)); ++in)
503 ossl_ssize_t (*parser)(const char **, void *);
506 static int tlsa_import_rr(SSL *con, const char *rrdata)
508 /* Not necessary to re-init these values; the "parsers" do that. */
509 static uint8_t usage;
510 static uint8_t selector;
511 static uint8_t mtype;
512 static unsigned char *data;
513 static struct tlsa_field tlsa_fields[] = {
514 { &usage, "usage", checked_uint8 },
515 { &selector, "selector", checked_uint8 },
516 { &mtype, "mtype", checked_uint8 },
517 { &data, "data", hexdecode },
520 struct tlsa_field *f;
522 const char *cp = rrdata;
523 ossl_ssize_t len = 0;
525 for (f = tlsa_fields; f->var; ++f) {
526 /* Returns number of bytes produced, advances cp to next field */
527 if ((len = f->parser(&cp, f->var)) <= 0) {
528 BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n",
529 prog, f->name, rrdata);
533 /* The data field is last, so len is its length */
534 ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len);
538 ERR_print_errors(bio_err);
539 BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n",
544 ERR_print_errors(bio_err);
545 BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n",
552 static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset)
554 int num = sk_OPENSSL_STRING_num(rrset);
558 for (i = 0; i < num; ++i) {
559 char *rrdata = sk_OPENSSL_STRING_value(rrset, i);
560 if (tlsa_import_rr(con, rrdata) > 0)
566 typedef enum OPTION_choice {
567 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
568 OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_BIND, OPT_UNIX,
569 OPT_XMPPHOST, OPT_VERIFY, OPT_NAMEOPT,
570 OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN,
571 OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET,
572 OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO,
573 OPT_SSL_CLIENT_ENGINE, OPT_IGN_EOF, OPT_NO_IGN_EOF,
574 OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG,
575 OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG,
576 OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE,
577 OPT_PSK_IDENTITY, OPT_PSK, OPT_PSK_SESS,
578 #ifndef OPENSSL_NO_SRP
579 OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER,
582 OPT_SSL3, OPT_SSL_CONFIG,
583 OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1,
584 OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS,
585 OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH,
586 OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE,
587 OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN,
588 OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, OPT_NOSERVERNAME, OPT_ASYNC,
589 OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_PROTOHOST,
590 OPT_MAXFRAGLEN, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES,
591 OPT_READ_BUF, OPT_KEYLOG_FILE, OPT_EARLY_DATA, OPT_REQCAFILE,
595 OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_PROXY_USER, OPT_PROXY_PASS,
596 OPT_DANE_TLSA_DOMAIN,
597 #ifndef OPENSSL_NO_CT
598 OPT_CT, OPT_NOCT, OPT_CTLOG_FILE,
600 OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME,
606 const OPTIONS s_client_options[] = {
607 {"help", OPT_HELP, '-', "Display this summary"},
608 {"host", OPT_HOST, 's', "Use -connect instead"},
609 {"port", OPT_PORT, 'p', "Use -connect instead"},
610 {"connect", OPT_CONNECT, 's',
611 "TCP/IP where to connect (default is :" PORT ")"},
612 {"bind", OPT_BIND, 's', "bind local address for connection"},
613 {"proxy", OPT_PROXY, 's',
614 "Connect to via specified proxy to the real server"},
615 {"proxy_user", OPT_PROXY_USER, 's', "UserID for proxy authentication"},
616 {"proxy_pass", OPT_PROXY_PASS, 's', "Proxy authentication password source"},
618 {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"},
620 {"4", OPT_4, '-', "Use IPv4 only"},
622 {"6", OPT_6, '-', "Use IPv6 only"},
624 {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"},
625 {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"},
626 {"certform", OPT_CERTFORM, 'F',
627 "Certificate format (PEM or DER) PEM default"},
628 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
629 {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"},
630 {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"},
631 {"pass", OPT_PASS, 's', "Private key file pass phrase source"},
632 {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},
633 {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},
634 {"no-CAfile", OPT_NOCAFILE, '-',
635 "Do not load the default certificates file"},
636 {"no-CApath", OPT_NOCAPATH, '-',
637 "Do not load certificates from the default certificates directory"},
638 {"requestCAfile", OPT_REQCAFILE, '<',
639 "PEM format file of CA names to send to the server"},
640 {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"},
641 {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's',
642 "DANE TLSA rrdata presentation form"},
643 {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-',
644 "Disable name checks when matching DANE-EE(3) TLSA records"},
645 {"reconnect", OPT_RECONNECT, '-',
646 "Drop and re-make the connection with the same Session-ID"},
647 {"showcerts", OPT_SHOWCERTS, '-',
648 "Show all certificates sent by the server"},
649 {"debug", OPT_DEBUG, '-', "Extra output"},
650 {"msg", OPT_MSG, '-', "Show protocol messages"},
651 {"msgfile", OPT_MSGFILE, '>',
652 "File to send output of -msg or -trace, instead of stdout"},
653 {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"},
654 {"state", OPT_STATE, '-', "Print the ssl states"},
655 {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"},
656 {"quiet", OPT_QUIET, '-', "No s_client output"},
657 {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"},
658 {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"},
659 {"starttls", OPT_STARTTLS, 's',
660 "Use the appropriate STARTTLS command before starting TLS"},
661 {"xmpphost", OPT_XMPPHOST, 's',
662 "Alias of -name option for \"-starttls xmpp[-server]\""},
664 {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"},
665 {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"},
666 #ifndef OPENSSL_NO_SRTP
667 {"use_srtp", OPT_USE_SRTP, 's',
668 "Offer SRTP key management with a colon-separated profile list"},
670 {"keymatexport", OPT_KEYMATEXPORT, 's',
671 "Export keying material using label"},
672 {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p',
673 "Export len bytes of keying material (default 20)"},
674 {"maxfraglen", OPT_MAXFRAGLEN, 'p',
675 "Enable Maximum Fragment Length Negotiation (len values: 512, 1024, 2048 and 4096)"},
676 {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"},
677 {"name", OPT_PROTOHOST, 's',
678 "Hostname to use for \"-starttls lmtp\", \"-starttls smtp\" or \"-starttls xmpp[-server]\""},
679 {"CRL", OPT_CRL, '<', "CRL file to use"},
680 {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"},
681 {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"},
682 {"verify_return_error", OPT_VERIFY_RET_ERROR, '-',
683 "Close connection on verification error"},
684 {"verify_quiet", OPT_VERIFY_QUIET, '-', "Restrict verify output to errors"},
685 {"brief", OPT_BRIEF, '-',
686 "Restrict output to brief summary of connection parameters"},
687 {"prexit", OPT_PREXIT, '-',
688 "Print session information when the program exits"},
689 {"security_debug", OPT_SECURITY_DEBUG, '-',
690 "Enable security debug messages"},
691 {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-',
692 "Output more security debug output"},
693 {"cert_chain", OPT_CERT_CHAIN, '<',
694 "Certificate chain file (in PEM format)"},
695 {"chainCApath", OPT_CHAINCAPATH, '/',
696 "Use dir as certificate store path to build CA certificate chain"},
697 {"verifyCApath", OPT_VERIFYCAPATH, '/',
698 "Use dir as certificate store path to verify CA certificate"},
699 {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"},
700 {"chainCAfile", OPT_CHAINCAFILE, '<',
701 "CA file for certificate chain (PEM format)"},
702 {"verifyCAfile", OPT_VERIFYCAFILE, '<',
703 "CA file for certificate verification (PEM format)"},
704 {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"},
705 {"servername", OPT_SERVERNAME, 's',
706 "Set TLS extension servername (SNI) in ClientHello (default)"},
707 {"noservername", OPT_NOSERVERNAME, '-',
708 "Do not send the server name (SNI) extension in the ClientHello"},
709 {"tlsextdebug", OPT_TLSEXTDEBUG, '-',
710 "Hex dump of all TLS extensions received"},
711 #ifndef OPENSSL_NO_OCSP
712 {"status", OPT_STATUS, '-', "Request certificate status from server"},
714 {"serverinfo", OPT_SERVERINFO, 's',
715 "types Send empty ClientHello extensions (comma-separated numbers)"},
716 {"alpn", OPT_ALPN, 's',
717 "Enable ALPN extension, considering named protocols supported (comma-separated list)"},
718 {"async", OPT_ASYNC, '-', "Support asynchronous operation"},
719 {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"},
720 {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "},
721 {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p',
722 "Size used to split data for encrypt pipelines"},
723 {"max_pipelines", OPT_MAX_PIPELINES, 'p',
724 "Maximum number of encrypt/decrypt pipelines to be used"},
725 {"read_buf", OPT_READ_BUF, 'p',
726 "Default read buffer size to be used for connections"},
730 #ifndef OPENSSL_NO_SSL3
731 {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},
733 #ifndef OPENSSL_NO_TLS1
734 {"tls1", OPT_TLS1, '-', "Just use TLSv1"},
736 #ifndef OPENSSL_NO_TLS1_1
737 {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"},
739 #ifndef OPENSSL_NO_TLS1_2
740 {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"},
742 #ifndef OPENSSL_NO_TLS1_3
743 {"tls1_3", OPT_TLS1_3, '-', "Just use TLSv1.3"},
745 #ifndef OPENSSL_NO_DTLS
746 {"dtls", OPT_DTLS, '-', "Use any version of DTLS"},
747 {"timeout", OPT_TIMEOUT, '-',
748 "Enable send/receive timeout on DTLS connections"},
749 {"mtu", OPT_MTU, 'p', "Set the link layer MTU"},
751 #ifndef OPENSSL_NO_DTLS1
752 {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"},
754 #ifndef OPENSSL_NO_DTLS1_2
755 {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"},
757 #ifndef OPENSSL_NO_SCTP
758 {"sctp", OPT_SCTP, '-', "Use SCTP"},
759 {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"},
761 #ifndef OPENSSL_NO_SSL_TRACE
762 {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"},
765 {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"},
767 {"nbio", OPT_NBIO, '-', "Use non-blocking IO"},
768 {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"},
769 {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"},
770 {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"},
771 #ifndef OPENSSL_NO_SRP
772 {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"},
773 {"srppass", OPT_SRPPASS, 's', "Password for 'user'"},
774 {"srp_lateuser", OPT_SRP_LATEUSER, '-',
775 "SRP username into second ClientHello message"},
776 {"srp_moregroups", OPT_SRP_MOREGROUPS, '-',
777 "Tolerate other than the known g N values."},
778 {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"},
780 #ifndef OPENSSL_NO_NEXTPROTONEG
781 {"nextprotoneg", OPT_NEXTPROTONEG, 's',
782 "Enable NPN extension, considering named protocols supported (comma-separated list)"},
784 #ifndef OPENSSL_NO_ENGINE
785 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
786 {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's',
787 "Specify engine to be used for client certificate operations"},
789 #ifndef OPENSSL_NO_CT
790 {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"},
791 {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"},
792 {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"},
794 {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"},
795 {"early_data", OPT_EARLY_DATA, '<', "File to send as early data"},
796 {"enable_pha", OPT_ENABLE_PHA, '-', "Enable post-handshake-authentication"},
797 {NULL, OPT_EOF, 0x00, NULL}
800 typedef enum PROTOCOL_choice {
819 static const OPT_PAIR services[] = {
820 {"smtp", PROTO_SMTP},
821 {"pop3", PROTO_POP3},
822 {"imap", PROTO_IMAP},
824 {"xmpp", PROTO_XMPP},
825 {"xmpp-server", PROTO_XMPP_SERVER},
826 {"telnet", PROTO_TELNET},
828 {"mysql", PROTO_MYSQL},
829 {"postgres", PROTO_POSTGRES},
830 {"lmtp", PROTO_LMTP},
831 {"nntp", PROTO_NNTP},
832 {"sieve", PROTO_SIEVE},
833 {"ldap", PROTO_LDAP},
837 #define IS_INET_FLAG(o) \
838 (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT)
839 #define IS_UNIX_FLAG(o) (o == OPT_UNIX)
841 #define IS_PROT_FLAG(o) \
842 (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \
843 || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2)
845 /* Free |*dest| and optionally set it to a copy of |source|. */
846 static void freeandcopy(char **dest, const char *source)
851 *dest = OPENSSL_strdup(source);
854 static int new_session_cb(SSL *s, SSL_SESSION *sess)
857 if (sess_out != NULL) {
858 BIO *stmp = BIO_new_file(sess_out, "w");
861 BIO_printf(bio_err, "Error writing session file %s\n", sess_out);
863 PEM_write_bio_SSL_SESSION(stmp, sess);
869 * Session data gets dumped on connection for TLSv1.2 and below, and on
870 * arrival of the NewSessionTicket for TLSv1.3.
872 if (SSL_version(s) == TLS1_3_VERSION) {
873 BIO_printf(bio_c_out,
874 "---\nPost-Handshake New Session Ticket arrived:\n");
875 SSL_SESSION_print(bio_c_out, sess);
876 BIO_printf(bio_c_out, "---\n");
880 * We always return a "fail" response so that the session gets freed again
881 * because we haven't used the reference.
886 int s_client_main(int argc, char **argv)
889 EVP_PKEY *key = NULL;
892 STACK_OF(X509) *chain = NULL;
894 X509_VERIFY_PARAM *vpm = NULL;
895 SSL_EXCERT *exc = NULL;
896 SSL_CONF_CTX *cctx = NULL;
897 STACK_OF(OPENSSL_STRING) *ssl_args = NULL;
898 char *dane_tlsa_domain = NULL;
899 STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL;
900 int dane_ee_no_name = 0;
901 STACK_OF(X509_CRL) *crls = NULL;
902 const SSL_METHOD *meth = TLS_client_method();
903 const char *CApath = NULL, *CAfile = NULL;
904 char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
905 char *proxystr = NULL, *proxyuser = NULL;
906 char *proxypassarg = NULL, *proxypass = NULL;
907 char *connectstr = NULL, *bindstr = NULL;
908 char *cert_file = NULL, *key_file = NULL, *chain_file = NULL;
909 char *chCApath = NULL, *chCAfile = NULL, *host = NULL;
910 char *port = OPENSSL_strdup(PORT);
911 char *bindhost = NULL, *bindport = NULL;
912 char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL;
913 char *ReqCAfile = NULL;
914 char *sess_in = NULL, *crl_file = NULL, *p;
915 const char *protohost = NULL;
916 struct timeval timeout, *timeoutp;
917 fd_set readfds, writefds;
918 int noCApath = 0, noCAfile = 0;
919 int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM;
920 int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0;
923 int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0;
924 int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0;
925 int sbuf_len, sbuf_off, cmdletters = 1;
926 int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0;
927 int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0;
928 int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
929 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
932 int read_buf_len = 0;
933 int fallback_scsv = 0;
935 #ifndef OPENSSL_NO_DTLS
936 int enable_timeouts = 0;
939 #ifndef OPENSSL_NO_ENGINE
940 ENGINE *ssl_client_engine = NULL;
943 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
946 const char *servername = NULL;
947 int noservername = 0;
948 const char *alpn_in = NULL;
949 tlsextctx tlsextcbp = { NULL, 0 };
950 const char *ssl_config = NULL;
951 #define MAX_SI_TYPES 100
952 unsigned short serverinfo_types[MAX_SI_TYPES];
953 int serverinfo_count = 0, start = 0, len;
954 #ifndef OPENSSL_NO_NEXTPROTONEG
955 const char *next_proto_neg_in = NULL;
957 #ifndef OPENSSL_NO_SRP
958 char *srppass = NULL;
959 int srp_lateuser = 0;
960 SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 };
962 #ifndef OPENSSL_NO_SRTP
963 char *srtp_profiles = NULL;
965 #ifndef OPENSSL_NO_CT
966 char *ctlog_file = NULL;
967 int ct_validation = 0;
969 int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0;
971 unsigned int max_send_fragment = 0;
972 unsigned int split_send_fragment = 0, max_pipelines = 0;
973 enum { use_inet, use_unix, use_unknown } connect_type = use_unknown;
975 uint8_t maxfraglen = 0;
976 int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0;
977 int c_tlsextdebug = 0;
978 #ifndef OPENSSL_NO_OCSP
979 int c_status_req = 0;
981 BIO *bio_c_msg = NULL;
982 const char *keylog_file = NULL, *early_data_file = NULL;
983 #ifndef OPENSSL_NO_DTLS
986 char *psksessf = NULL;
988 #ifndef OPENSSL_NO_SCTP
989 int sctp_label_bug = 0;
994 /* Known false-positive of MemorySanitizer. */
995 #if defined(__has_feature)
996 # if __has_feature(memory_sanitizer)
997 __msan_unpoison(&readfds, sizeof(readfds));
998 __msan_unpoison(&writefds, sizeof(writefds));
1002 prog = opt_progname(argv[0]);
1007 vpm = X509_VERIFY_PARAM_new();
1008 cctx = SSL_CONF_CTX_new();
1010 if (vpm == NULL || cctx == NULL) {
1011 BIO_printf(bio_err, "%s: out of memory\n", prog);
1015 cbuf = app_malloc(BUFSIZZ, "cbuf");
1016 sbuf = app_malloc(BUFSIZZ, "sbuf");
1017 mbuf = app_malloc(BUFSIZZ, "mbuf");
1019 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE);
1021 prog = opt_init(argc, argv, s_client_options);
1022 while ((o = opt_next()) != OPT_EOF) {
1023 /* Check for intermixing flags. */
1024 if (connect_type == use_unix && IS_INET_FLAG(o)) {
1026 "%s: Intermixed protocol flags (unix and internet domains)\n",
1030 if (connect_type == use_inet && IS_UNIX_FLAG(o)) {
1032 "%s: Intermixed protocol flags (internet and unix domains)\n",
1037 if (IS_PROT_FLAG(o) && ++prot_opt > 1) {
1038 BIO_printf(bio_err, "Cannot supply multiple protocol flags\n");
1041 if (IS_NO_PROT_FLAG(o))
1043 if (prot_opt == 1 && no_prot_opt) {
1045 "Cannot supply both a protocol flag and '-no_<prot>'\n");
1053 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
1056 opt_help(s_client_options);
1060 connect_type = use_inet;
1061 socket_family = AF_INET;
1066 connect_type = use_inet;
1067 socket_family = AF_INET6;
1072 connect_type = use_inet;
1073 freeandcopy(&host, opt_arg());
1076 connect_type = use_inet;
1077 freeandcopy(&port, opt_arg());
1080 connect_type = use_inet;
1081 freeandcopy(&connectstr, opt_arg());
1084 freeandcopy(&bindstr, opt_arg());
1087 proxystr = opt_arg();
1088 starttls_proto = PROTO_CONNECT;
1090 case OPT_PROXY_USER:
1091 proxyuser = opt_arg();
1093 case OPT_PROXY_PASS:
1094 proxypassarg = opt_arg();
1098 connect_type = use_unix;
1099 socket_family = AF_UNIX;
1100 freeandcopy(&host, opt_arg());
1104 /* fall through, since this is an alias */
1106 protohost = opt_arg();
1109 verify = SSL_VERIFY_PEER;
1110 verify_args.depth = atoi(opt_arg());
1112 BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth);
1115 cert_file = opt_arg();
1118 if (!set_nameopt(opt_arg()))
1122 crl_file = opt_arg();
1124 case OPT_CRL_DOWNLOAD:
1128 sess_out = opt_arg();
1131 sess_in = opt_arg();
1134 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format))
1138 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format))
1141 case OPT_VERIFY_RET_ERROR:
1142 verify = SSL_VERIFY_PEER;
1143 verify_args.return_error = 1;
1145 case OPT_VERIFY_QUIET:
1146 verify_args.quiet = 1;
1149 c_brief = verify_args.quiet = c_quiet = 1;
1152 if (ssl_args == NULL)
1153 ssl_args = sk_OPENSSL_STRING_new_null();
1154 if (ssl_args == NULL
1155 || !sk_OPENSSL_STRING_push(ssl_args, opt_flag())
1156 || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) {
1157 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1162 if (!opt_verify(o, vpm))
1167 if (!args_excert(o, &exc))
1177 c_quiet = c_ign_eof = 1;
1186 e = setup_engine(opt_arg(), 1);
1188 case OPT_SSL_CLIENT_ENGINE:
1189 #ifndef OPENSSL_NO_ENGINE
1190 ssl_client_engine = ENGINE_by_id(opt_arg());
1191 if (ssl_client_engine == NULL) {
1192 BIO_printf(bio_err, "Error getting client auth engine\n");
1204 case OPT_NO_IGN_EOF:
1210 case OPT_TLSEXTDEBUG:
1214 #ifndef OPENSSL_NO_OCSP
1227 bio_c_msg = BIO_new_file(opt_arg(), "w");
1230 #ifndef OPENSSL_NO_SSL_TRACE
1234 case OPT_SECURITY_DEBUG:
1237 case OPT_SECURITY_DEBUG_VERBOSE:
1249 case OPT_PSK_IDENTITY:
1250 psk_identity = opt_arg();
1253 for (p = psk_key = opt_arg(); *p; p++) {
1254 if (isxdigit(_UC(*p)))
1256 BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key);
1261 psksessf = opt_arg();
1263 #ifndef OPENSSL_NO_SRP
1265 srp_arg.srplogin = opt_arg();
1266 if (min_version < TLS1_VERSION)
1267 min_version = TLS1_VERSION;
1270 srppass = opt_arg();
1271 if (min_version < TLS1_VERSION)
1272 min_version = TLS1_VERSION;
1274 case OPT_SRP_STRENGTH:
1275 srp_arg.strength = atoi(opt_arg());
1276 BIO_printf(bio_err, "SRP minimal length for N is %d\n",
1278 if (min_version < TLS1_VERSION)
1279 min_version = TLS1_VERSION;
1281 case OPT_SRP_LATEUSER:
1283 if (min_version < TLS1_VERSION)
1284 min_version = TLS1_VERSION;
1286 case OPT_SRP_MOREGROUPS:
1288 if (min_version < TLS1_VERSION)
1289 min_version = TLS1_VERSION;
1292 case OPT_SSL_CONFIG:
1293 ssl_config = opt_arg();
1296 min_version = SSL3_VERSION;
1297 max_version = SSL3_VERSION;
1300 min_version = TLS1_3_VERSION;
1301 max_version = TLS1_3_VERSION;
1304 min_version = TLS1_2_VERSION;
1305 max_version = TLS1_2_VERSION;
1308 min_version = TLS1_1_VERSION;
1309 max_version = TLS1_1_VERSION;
1312 min_version = TLS1_VERSION;
1313 max_version = TLS1_VERSION;
1316 #ifndef OPENSSL_NO_DTLS
1317 meth = DTLS_client_method();
1318 socket_type = SOCK_DGRAM;
1323 #ifndef OPENSSL_NO_DTLS1
1324 meth = DTLS_client_method();
1325 min_version = DTLS1_VERSION;
1326 max_version = DTLS1_VERSION;
1327 socket_type = SOCK_DGRAM;
1332 #ifndef OPENSSL_NO_DTLS1_2
1333 meth = DTLS_client_method();
1334 min_version = DTLS1_2_VERSION;
1335 max_version = DTLS1_2_VERSION;
1336 socket_type = SOCK_DGRAM;
1341 #ifndef OPENSSL_NO_SCTP
1342 protocol = IPPROTO_SCTP;
1345 case OPT_SCTP_LABEL_BUG:
1346 #ifndef OPENSSL_NO_SCTP
1351 #ifndef OPENSSL_NO_DTLS
1352 enable_timeouts = 1;
1356 #ifndef OPENSSL_NO_DTLS
1357 socket_mtu = atol(opt_arg());
1360 case OPT_FALLBACKSCSV:
1364 if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format))
1368 passarg = opt_arg();
1370 case OPT_CERT_CHAIN:
1371 chain_file = opt_arg();
1374 key_file = opt_arg();
1385 case OPT_CHAINCAPATH:
1386 chCApath = opt_arg();
1388 case OPT_VERIFYCAPATH:
1389 vfyCApath = opt_arg();
1391 case OPT_BUILD_CHAIN:
1395 ReqCAfile = opt_arg();
1403 #ifndef OPENSSL_NO_CT
1410 case OPT_CTLOG_FILE:
1411 ctlog_file = opt_arg();
1414 case OPT_CHAINCAFILE:
1415 chCAfile = opt_arg();
1417 case OPT_VERIFYCAFILE:
1418 vfyCAfile = opt_arg();
1420 case OPT_DANE_TLSA_DOMAIN:
1421 dane_tlsa_domain = opt_arg();
1423 case OPT_DANE_TLSA_RRDATA:
1424 if (dane_tlsa_rrset == NULL)
1425 dane_tlsa_rrset = sk_OPENSSL_STRING_new_null();
1426 if (dane_tlsa_rrset == NULL ||
1427 !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) {
1428 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
1432 case OPT_DANE_EE_NO_NAME:
1433 dane_ee_no_name = 1;
1435 case OPT_NEXTPROTONEG:
1436 #ifndef OPENSSL_NO_NEXTPROTONEG
1437 next_proto_neg_in = opt_arg();
1441 alpn_in = opt_arg();
1443 case OPT_SERVERINFO:
1446 for (start = 0, i = 0; i <= len; ++i) {
1447 if (i == len || p[i] == ',') {
1448 serverinfo_types[serverinfo_count] = atoi(p + start);
1449 if (++serverinfo_count == MAX_SI_TYPES)
1456 if (!opt_pair(opt_arg(), services, &starttls_proto))
1459 case OPT_SERVERNAME:
1460 servername = opt_arg();
1462 case OPT_NOSERVERNAME:
1466 #ifndef OPENSSL_NO_SRTP
1467 srtp_profiles = opt_arg();
1470 case OPT_KEYMATEXPORT:
1471 keymatexportlabel = opt_arg();
1473 case OPT_KEYMATEXPORTLEN:
1474 keymatexportlen = atoi(opt_arg());
1479 case OPT_MAXFRAGLEN:
1480 len = atoi(opt_arg());
1483 maxfraglen = TLSEXT_max_fragment_length_512;
1486 maxfraglen = TLSEXT_max_fragment_length_1024;
1489 maxfraglen = TLSEXT_max_fragment_length_2048;
1492 maxfraglen = TLSEXT_max_fragment_length_4096;
1496 "%s: Max Fragment Len %u is out of permitted values",
1501 case OPT_MAX_SEND_FRAG:
1502 max_send_fragment = atoi(opt_arg());
1504 case OPT_SPLIT_SEND_FRAG:
1505 split_send_fragment = atoi(opt_arg());
1507 case OPT_MAX_PIPELINES:
1508 max_pipelines = atoi(opt_arg());
1511 read_buf_len = atoi(opt_arg());
1513 case OPT_KEYLOG_FILE:
1514 keylog_file = opt_arg();
1516 case OPT_EARLY_DATA:
1517 early_data_file = opt_arg();
1519 case OPT_ENABLE_PHA:
1524 if (count4or6 >= 2) {
1525 BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog);
1529 if (servername != NULL) {
1531 "%s: Can't use -servername and -noservername together\n",
1535 if (dane_tlsa_domain != NULL) {
1537 "%s: Can't use -dane_tlsa_domain and -noservername together\n",
1542 argc = opt_num_rest();
1544 /* If there's a positional argument, it's the equivalent of
1546 * Don't allow -connect and a separate argument.
1548 if (connectstr != NULL) {
1550 "%s: must not provide both -connect option and target parameter\n",
1554 connect_type = use_inet;
1555 freeandcopy(&connectstr, *opt_rest());
1556 } else if (argc != 0) {
1560 #ifndef OPENSSL_NO_NEXTPROTONEG
1561 if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) {
1562 BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n");
1566 if (proxystr != NULL) {
1568 char *tmp_host = host, *tmp_port = port;
1569 if (connectstr == NULL) {
1570 BIO_printf(bio_err, "%s: -proxy requires use of -connect or target parameter\n", prog);
1573 res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST);
1574 if (tmp_host != host)
1575 OPENSSL_free(tmp_host);
1576 if (tmp_port != port)
1577 OPENSSL_free(tmp_port);
1580 "%s: -proxy argument malformed or ambiguous\n", prog);
1585 char *tmp_host = host, *tmp_port = port;
1586 if (connectstr != NULL)
1587 res = BIO_parse_hostserv(connectstr, &host, &port,
1588 BIO_PARSE_PRIO_HOST);
1589 if (tmp_host != host)
1590 OPENSSL_free(tmp_host);
1591 if (tmp_port != port)
1592 OPENSSL_free(tmp_port);
1595 "%s: -connect argument or target parameter malformed or ambiguous\n",
1601 if (bindstr != NULL) {
1603 res = BIO_parse_hostserv(bindstr, &bindhost, &bindport,
1604 BIO_PARSE_PRIO_HOST);
1607 "%s: -bind argument parameter malformed or ambiguous\n",
1614 if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) {
1616 "Can't use unix sockets and datagrams together\n");
1621 #ifndef OPENSSL_NO_SCTP
1622 if (protocol == IPPROTO_SCTP) {
1623 if (socket_type != SOCK_DGRAM) {
1624 BIO_printf(bio_err, "Can't use -sctp without DTLS\n");
1627 /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */
1628 socket_type = SOCK_STREAM;
1632 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1633 next_proto.status = -1;
1634 if (next_proto_neg_in) {
1636 next_protos_parse(&next_proto.len, next_proto_neg_in);
1637 if (next_proto.data == NULL) {
1638 BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n");
1642 next_proto.data = NULL;
1645 if (!app_passwd(passarg, NULL, &pass, NULL)) {
1646 BIO_printf(bio_err, "Error getting private key password\n");
1650 if (!app_passwd(proxypassarg, NULL, &proxypass, NULL)) {
1651 BIO_printf(bio_err, "Error getting proxy password\n");
1655 if (proxypass != NULL && proxyuser == NULL) {
1656 BIO_printf(bio_err, "Error: Must specify proxy_user with proxy_pass\n");
1660 if (key_file == NULL)
1661 key_file = cert_file;
1663 if (key_file != NULL) {
1664 key = load_key(key_file, key_format, 0, pass, e,
1665 "client certificate private key file");
1667 ERR_print_errors(bio_err);
1672 if (cert_file != NULL) {
1673 cert = load_cert(cert_file, cert_format, "client certificate file");
1675 ERR_print_errors(bio_err);
1680 if (chain_file != NULL) {
1681 if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL,
1682 "client certificate chain"))
1686 if (crl_file != NULL) {
1688 crl = load_crl(crl_file, crl_format);
1690 BIO_puts(bio_err, "Error loading CRL\n");
1691 ERR_print_errors(bio_err);
1694 crls = sk_X509_CRL_new_null();
1695 if (crls == NULL || !sk_X509_CRL_push(crls, crl)) {
1696 BIO_puts(bio_err, "Error adding CRL\n");
1697 ERR_print_errors(bio_err);
1703 if (!load_excert(&exc))
1706 if (bio_c_out == NULL) {
1707 if (c_quiet && !c_debug) {
1708 bio_c_out = BIO_new(BIO_s_null());
1709 if (c_msg && bio_c_msg == NULL)
1710 bio_c_msg = dup_bio_out(FORMAT_TEXT);
1711 } else if (bio_c_out == NULL)
1712 bio_c_out = dup_bio_out(FORMAT_TEXT);
1714 #ifndef OPENSSL_NO_SRP
1715 if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) {
1716 BIO_printf(bio_err, "Error getting password\n");
1721 ctx = SSL_CTX_new(meth);
1723 ERR_print_errors(bio_err);
1727 SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY);
1730 ssl_ctx_security_debug(ctx, sdebug);
1732 if (!config_ctx(cctx, ssl_args, ctx))
1735 if (ssl_config != NULL) {
1736 if (SSL_CTX_config(ctx, ssl_config) == 0) {
1737 BIO_printf(bio_err, "Error using configuration \"%s\"\n",
1739 ERR_print_errors(bio_err);
1744 #ifndef OPENSSL_NO_SCTP
1745 if (protocol == IPPROTO_SCTP && sctp_label_bug == 1)
1746 SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG);
1749 if (min_version != 0
1750 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0)
1752 if (max_version != 0
1753 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0)
1756 if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) {
1757 BIO_printf(bio_err, "Error setting verify params\n");
1758 ERR_print_errors(bio_err);
1763 SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC);
1766 if (max_send_fragment > 0
1767 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) {
1768 BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n",
1769 prog, max_send_fragment);
1773 if (split_send_fragment > 0
1774 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) {
1775 BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n",
1776 prog, split_send_fragment);
1780 if (max_pipelines > 0
1781 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) {
1782 BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n",
1783 prog, max_pipelines);
1787 if (read_buf_len > 0) {
1788 SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len);
1792 && !SSL_CTX_set_tlsext_max_fragment_length(ctx, maxfraglen)) {
1794 "%s: Max Fragment Length code %u is out of permitted values"
1795 "\n", prog, maxfraglen);
1799 if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile,
1800 crls, crl_download)) {
1801 BIO_printf(bio_err, "Error loading store locations\n");
1802 ERR_print_errors(bio_err);
1805 if (ReqCAfile != NULL) {
1806 STACK_OF(X509_NAME) *nm = sk_X509_NAME_new_null();
1808 if (nm == NULL || !SSL_add_file_cert_subjects_to_stack(nm, ReqCAfile)) {
1809 sk_X509_NAME_pop_free(nm, X509_NAME_free);
1810 BIO_printf(bio_err, "Error loading CA names\n");
1811 ERR_print_errors(bio_err);
1814 SSL_CTX_set0_CA_list(ctx, nm);
1816 #ifndef OPENSSL_NO_ENGINE
1817 if (ssl_client_engine) {
1818 if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) {
1819 BIO_puts(bio_err, "Error setting client auth engine\n");
1820 ERR_print_errors(bio_err);
1821 ENGINE_free(ssl_client_engine);
1824 ENGINE_free(ssl_client_engine);
1828 #ifndef OPENSSL_NO_PSK
1829 if (psk_key != NULL) {
1831 BIO_printf(bio_c_out, "PSK key given, setting client callback\n");
1832 SSL_CTX_set_psk_client_callback(ctx, psk_client_cb);
1835 if (psksessf != NULL) {
1836 BIO *stmp = BIO_new_file(psksessf, "r");
1839 BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf);
1840 ERR_print_errors(bio_err);
1843 psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
1845 if (psksess == NULL) {
1846 BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf);
1847 ERR_print_errors(bio_err);
1851 if (psk_key != NULL || psksess != NULL)
1852 SSL_CTX_set_psk_use_session_callback(ctx, psk_use_session_cb);
1854 #ifndef OPENSSL_NO_SRTP
1855 if (srtp_profiles != NULL) {
1856 /* Returns 0 on success! */
1857 if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) {
1858 BIO_printf(bio_err, "Error setting SRTP profile\n");
1859 ERR_print_errors(bio_err);
1866 ssl_ctx_set_excert(ctx, exc);
1868 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1869 if (next_proto.data != NULL)
1870 SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
1874 unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in);
1877 BIO_printf(bio_err, "Error parsing -alpn argument\n");
1880 /* Returns 0 on success! */
1881 if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) {
1882 BIO_printf(bio_err, "Error setting ALPN\n");
1888 for (i = 0; i < serverinfo_count; i++) {
1889 if (!SSL_CTX_add_client_custom_ext(ctx,
1890 serverinfo_types[i],
1892 serverinfo_cli_parse_cb, NULL)) {
1894 "Warning: Unable to add custom extension %u, skipping\n",
1895 serverinfo_types[i]);
1900 SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
1902 #ifndef OPENSSL_NO_CT
1903 /* Enable SCT processing, without early connection termination */
1904 if (ct_validation &&
1905 !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) {
1906 ERR_print_errors(bio_err);
1910 if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) {
1911 if (ct_validation) {
1912 ERR_print_errors(bio_err);
1917 * If CT validation is not enabled, the log list isn't needed so don't
1918 * show errors or abort. We try to load it regardless because then we
1919 * can show the names of the logs any SCTs came from (SCTs may be seen
1920 * even with validation disabled).
1926 SSL_CTX_set_verify(ctx, verify, verify_callback);
1928 if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {
1929 ERR_print_errors(bio_err);
1933 ssl_ctx_add_crls(ctx, crls, crl_download);
1935 if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain))
1938 if (!noservername) {
1939 tlsextcbp.biodebug = bio_err;
1940 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1941 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1943 # ifndef OPENSSL_NO_SRP
1944 if (srp_arg.srplogin) {
1945 if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) {
1946 BIO_printf(bio_err, "Unable to set SRP username\n");
1949 srp_arg.msg = c_msg;
1950 srp_arg.debug = c_debug;
1951 SSL_CTX_set_srp_cb_arg(ctx, &srp_arg);
1952 SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb);
1953 SSL_CTX_set_srp_strength(ctx, srp_arg.strength);
1954 if (c_msg || c_debug || srp_arg.amp == 0)
1955 SSL_CTX_set_srp_verify_param_callback(ctx,
1956 ssl_srp_verify_param_cb);
1960 if (dane_tlsa_domain != NULL) {
1961 if (SSL_CTX_dane_enable(ctx) <= 0) {
1963 "%s: Error enabling DANE TLSA authentication.\n",
1965 ERR_print_errors(bio_err);
1971 * In TLSv1.3 NewSessionTicket messages arrive after the handshake and can
1972 * come at any time. Therefore we use a callback to write out the session
1973 * when we know about it. This approach works for < TLSv1.3 as well.
1975 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_CLIENT
1976 | SSL_SESS_CACHE_NO_INTERNAL_STORE);
1977 SSL_CTX_sess_set_new_cb(ctx, new_session_cb);
1979 if (set_keylog_file(ctx, keylog_file))
1987 SSL_set_post_handshake_auth(con, 1);
1989 if (sess_in != NULL) {
1991 BIO *stmp = BIO_new_file(sess_in, "r");
1993 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
1994 ERR_print_errors(bio_err);
1997 sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL);
2000 BIO_printf(bio_err, "Can't open session file %s\n", sess_in);
2001 ERR_print_errors(bio_err);
2004 if (!SSL_set_session(con, sess)) {
2005 BIO_printf(bio_err, "Can't set session\n");
2006 ERR_print_errors(bio_err);
2010 SSL_SESSION_free(sess);
2014 SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
2016 if (!noservername && (servername != NULL || dane_tlsa_domain == NULL)) {
2017 if (servername == NULL) {
2018 if(host == NULL || is_dNS_name(host))
2019 servername = (host == NULL) ? "localhost" : host;
2021 if (servername != NULL && !SSL_set_tlsext_host_name(con, servername)) {
2022 BIO_printf(bio_err, "Unable to set TLS servername extension.\n");
2023 ERR_print_errors(bio_err);
2028 if (dane_tlsa_domain != NULL) {
2029 if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) {
2030 BIO_printf(bio_err, "%s: Error enabling DANE TLSA "
2031 "authentication.\n", prog);
2032 ERR_print_errors(bio_err);
2035 if (dane_tlsa_rrset == NULL) {
2036 BIO_printf(bio_err, "%s: DANE TLSA authentication requires at "
2037 "least one -dane_tlsa_rrdata option.\n", prog);
2040 if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) {
2041 BIO_printf(bio_err, "%s: Failed to import any TLSA "
2042 "records.\n", prog);
2045 if (dane_ee_no_name)
2046 SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS);
2047 } else if (dane_tlsa_rrset != NULL) {
2048 BIO_printf(bio_err, "%s: DANE TLSA authentication requires the "
2049 "-dane_tlsa_domain option.\n", prog);
2054 if (init_client(&s, host, port, bindhost, bindport, socket_family,
2055 socket_type, protocol) == 0) {
2056 BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error());
2060 BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
2063 if (!BIO_socket_nbio(s, 1)) {
2064 ERR_print_errors(bio_err);
2067 BIO_printf(bio_c_out, "Turned on non blocking io\n");
2069 #ifndef OPENSSL_NO_DTLS
2071 union BIO_sock_info_u peer_info;
2073 #ifndef OPENSSL_NO_SCTP
2074 if (protocol == IPPROTO_SCTP)
2075 sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE);
2078 sbio = BIO_new_dgram(s, BIO_NOCLOSE);
2080 if ((peer_info.addr = BIO_ADDR_new()) == NULL) {
2081 BIO_printf(bio_err, "memory allocation failure\n");
2085 if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) {
2086 BIO_printf(bio_err, "getsockname:errno=%d\n",
2087 get_last_socket_error());
2088 BIO_ADDR_free(peer_info.addr);
2093 (void)BIO_ctrl_set_connected(sbio, peer_info.addr);
2094 BIO_ADDR_free(peer_info.addr);
2095 peer_info.addr = NULL;
2097 if (enable_timeouts) {
2099 timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2100 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2103 timeout.tv_usec = DGRAM_SND_TIMEOUT;
2104 BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2108 if (socket_mtu < DTLS_get_link_min_mtu(con)) {
2109 BIO_printf(bio_err, "MTU too small. Must be at least %ld\n",
2110 DTLS_get_link_min_mtu(con));
2114 SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2115 if (!DTLS_set_link_mtu(con, socket_mtu)) {
2116 BIO_printf(bio_err, "Failed to set MTU\n");
2121 /* want to do MTU discovery */
2122 BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2125 #endif /* OPENSSL_NO_DTLS */
2126 sbio = BIO_new_socket(s, BIO_NOCLOSE);
2131 test = BIO_new(BIO_f_nbio_test());
2132 sbio = BIO_push(test, sbio);
2136 BIO_set_callback(sbio, bio_dump_callback);
2137 BIO_set_callback_arg(sbio, (char *)bio_c_out);
2140 #ifndef OPENSSL_NO_SSL_TRACE
2142 SSL_set_msg_callback(con, SSL_trace);
2145 SSL_set_msg_callback(con, msg_cb);
2146 SSL_set_msg_callback_arg(con, bio_c_msg ? bio_c_msg : bio_c_out);
2149 if (c_tlsextdebug) {
2150 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2151 SSL_set_tlsext_debug_arg(con, bio_c_out);
2153 #ifndef OPENSSL_NO_OCSP
2155 SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp);
2156 SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb);
2157 SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out);
2161 SSL_set_bio(con, sbio, sbio);
2162 SSL_set_connect_state(con);
2164 /* ok, lets connect */
2165 if (fileno_stdin() > SSL_get_fd(con))
2166 width = fileno_stdin() + 1;
2168 width = SSL_get_fd(con) + 1;
2181 switch ((PROTOCOL_CHOICE) starttls_proto) {
2188 * This is an ugly hack that does a lot of assumptions. We do
2189 * have to handle multi-line responses which may come in a single
2190 * packet or not. We therefore have to use BIO_gets() which does
2191 * need a buffering BIO. So during the initial chitchat we do
2192 * push a buffering BIO into the chain that is removed again
2193 * later on to not disturb the rest of the s_client operation.
2196 BIO *fbio = BIO_new(BIO_f_buffer());
2198 BIO_push(fbio, sbio);
2199 /* Wait for multi-line response to end from LMTP or SMTP */
2201 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2202 } while (mbuf_len > 3 && mbuf[3] == '-');
2203 if (protohost == NULL)
2204 protohost = "mail.example.com";
2205 if (starttls_proto == (int)PROTO_LMTP)
2206 BIO_printf(fbio, "LHLO %s\r\n", protohost);
2208 BIO_printf(fbio, "EHLO %s\r\n", protohost);
2209 (void)BIO_flush(fbio);
2211 * Wait for multi-line response to end LHLO LMTP or EHLO SMTP
2215 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2216 if (strstr(mbuf, "STARTTLS"))
2218 } while (mbuf_len > 3 && mbuf[3] == '-');
2219 (void)BIO_flush(fbio);
2224 "Didn't find STARTTLS in server response,"
2225 " trying anyway...\n");
2226 BIO_printf(sbio, "STARTTLS\r\n");
2227 BIO_read(sbio, sbuf, BUFSIZZ);
2232 BIO_read(sbio, mbuf, BUFSIZZ);
2233 BIO_printf(sbio, "STLS\r\n");
2234 mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ);
2236 BIO_printf(bio_err, "BIO_read failed\n");
2244 BIO *fbio = BIO_new(BIO_f_buffer());
2246 BIO_push(fbio, sbio);
2247 BIO_gets(fbio, mbuf, BUFSIZZ);
2248 /* STARTTLS command requires CAPABILITY... */
2249 BIO_printf(fbio, ". CAPABILITY\r\n");
2250 (void)BIO_flush(fbio);
2251 /* wait for multi-line CAPABILITY response */
2253 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2254 if (strstr(mbuf, "STARTTLS"))
2257 while (mbuf_len > 3 && mbuf[0] != '.');
2258 (void)BIO_flush(fbio);
2263 "Didn't find STARTTLS in server response,"
2264 " trying anyway...\n");
2265 BIO_printf(sbio, ". STARTTLS\r\n");
2266 BIO_read(sbio, sbuf, BUFSIZZ);
2271 BIO *fbio = BIO_new(BIO_f_buffer());
2273 BIO_push(fbio, sbio);
2274 /* wait for multi-line response to end from FTP */
2276 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2278 while (mbuf_len > 3 && mbuf[3] == '-');
2279 (void)BIO_flush(fbio);
2282 BIO_printf(sbio, "AUTH TLS\r\n");
2283 BIO_read(sbio, sbuf, BUFSIZZ);
2287 case PROTO_XMPP_SERVER:
2290 BIO_printf(sbio, "<stream:stream "
2291 "xmlns:stream='http://etherx.jabber.org/streams' "
2292 "xmlns='jabber:%s' to='%s' version='1.0'>",
2293 starttls_proto == PROTO_XMPP ? "client" : "server",
2294 protohost ? protohost : host);
2295 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2297 BIO_printf(bio_err, "BIO_read failed\n");
2302 (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'")
2304 "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\""))
2306 seen = BIO_read(sbio, mbuf, BUFSIZZ);
2314 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
2315 seen = BIO_read(sbio, sbuf, BUFSIZZ);
2317 BIO_printf(bio_err, "BIO_read failed\n");
2321 if (!strstr(sbuf, "<proceed"))
2328 static const unsigned char tls_do[] = {
2329 /* IAC DO START_TLS */
2332 static const unsigned char tls_will[] = {
2333 /* IAC WILL START_TLS */
2336 static const unsigned char tls_follows[] = {
2337 /* IAC SB START_TLS FOLLOWS IAC SE */
2338 255, 250, 46, 1, 255, 240
2342 /* Telnet server should demand we issue START_TLS */
2343 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2344 if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0)
2346 /* Agree to issue START_TLS and send the FOLLOWS sub-command */
2347 BIO_write(sbio, tls_will, 3);
2348 BIO_write(sbio, tls_follows, 6);
2349 (void)BIO_flush(sbio);
2350 /* Telnet server also sent the FOLLOWS sub-command */
2351 bytes = BIO_read(sbio, mbuf, BUFSIZZ);
2352 if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0)
2359 error_proto, /* Wrong protocol, not even HTTP */
2360 error_connect, /* CONNECT failed */
2362 } foundit = error_connect;
2363 BIO *fbio = BIO_new(BIO_f_buffer());
2365 BIO_push(fbio, sbio);
2366 BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n", connectstr);
2368 * Workaround for broken proxies which would otherwise close
2369 * the connection when entering tunnel mode (eg Squid 2.6)
2371 BIO_printf(fbio, "Proxy-Connection: Keep-Alive\r\n");
2373 /* Support for basic (base64) proxy authentication */
2374 if (proxyuser != NULL) {
2376 char *proxyauth, *proxyauthenc;
2378 l = strlen(proxyuser);
2379 if (proxypass != NULL)
2380 l += strlen(proxypass);
2381 proxyauth = app_malloc(l + 2, "Proxy auth string");
2382 BIO_snprintf(proxyauth, l + 2, "%s:%s", proxyuser,
2383 (proxypass != NULL) ? proxypass : "");
2384 proxyauthenc = base64encode(proxyauth, strlen(proxyauth));
2385 BIO_printf(fbio, "Proxy-Authorization: Basic %s\r\n",
2387 OPENSSL_clear_free(proxyauth, strlen(proxyauth));
2388 OPENSSL_clear_free(proxyauthenc, strlen(proxyauthenc));
2391 /* Terminate the HTTP CONNECT request */
2392 BIO_printf(fbio, "\r\n");
2393 (void)BIO_flush(fbio);
2395 * The first line is the HTTP response. According to RFC 7230,
2396 * it's formated exactly like this:
2398 * HTTP/d.d ddd Reason text\r\n
2400 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2401 if (mbuf_len < (int)strlen("HTTP/1.0 200")) {
2403 "%s: HTTP CONNECT failed, insufficient response "
2404 "from proxy (got %d octets)\n", prog, mbuf_len);
2405 (void)BIO_flush(fbio);
2410 if (mbuf[8] != ' ') {
2412 "%s: HTTP CONNECT failed, incorrect response "
2413 "from proxy\n", prog);
2414 foundit = error_proto;
2415 } else if (mbuf[9] != '2') {
2416 BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog,
2421 if (foundit != error_proto) {
2422 /* Read past all following headers */
2424 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2425 } while (mbuf_len > 2);
2427 (void)BIO_flush(fbio);
2430 if (foundit != success) {
2438 BIO *fbio = BIO_new(BIO_f_buffer());
2440 BIO_push(fbio, sbio);
2441 BIO_printf(fbio, "STARTTLS\r\n");
2442 (void)BIO_flush(fbio);
2443 width = SSL_get_fd(con) + 1;
2449 openssl_fdset(SSL_get_fd(con), &readfds);
2450 timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT;
2451 timeout.tv_usec = 0;
2453 * If the IRCd doesn't respond within
2454 * S_CLIENT_IRC_READ_TIMEOUT seconds, assume
2455 * it doesn't support STARTTLS. Many IRCds
2456 * will not give _any_ sort of response to a
2457 * STARTTLS command when it's not supported.
2459 if (!BIO_get_buffer_num_lines(fbio)
2460 && !BIO_pending(fbio)
2461 && !BIO_pending(sbio)
2462 && select(width, (void *)&readfds, NULL, NULL,
2465 "Timeout waiting for response (%d seconds).\n",
2466 S_CLIENT_IRC_READ_TIMEOUT);
2470 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2471 if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1)
2473 /* :example.net 451 STARTTLS :You have not registered */
2474 /* :example.net 421 STARTTLS :Unknown command */
2475 if ((numeric == 451 || numeric == 421)
2476 && strstr(mbuf, "STARTTLS") != NULL) {
2477 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2480 if (numeric == 691) {
2481 BIO_printf(bio_err, "STARTTLS negotiation failed: ");
2482 ERR_print_errors(bio_err);
2485 } while (numeric != 670);
2487 (void)BIO_flush(fbio);
2490 if (numeric != 670) {
2491 BIO_printf(bio_err, "Server does not support STARTTLS.\n");
2499 /* SSL request packet */
2500 static const unsigned char ssl_req[] = {
2501 /* payload_length, sequence_id */
2502 0x20, 0x00, 0x00, 0x01,
2504 /* capability flags, CLIENT_SSL always set */
2505 0x85, 0xae, 0x7f, 0x00,
2506 /* max-packet size */
2507 0x00, 0x00, 0x00, 0x01,
2510 /* string[23] reserved (all [0]) */
2511 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2512 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2513 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2516 int ssl_flg = 0x800;
2518 const unsigned char *packet = (const unsigned char *)sbuf;
2520 /* Receiving Initial Handshake packet. */
2521 bytes = BIO_read(sbio, (void *)packet, BUFSIZZ);
2523 BIO_printf(bio_err, "BIO_read failed\n");
2525 /* Packet length[3], Packet number[1] + minimum payload[17] */
2526 } else if (bytes < 21) {
2527 BIO_printf(bio_err, "MySQL packet too short.\n");
2529 } else if (bytes != (4 + packet[0] +
2531 (packet[2] << 16))) {
2532 BIO_printf(bio_err, "MySQL packet length does not match.\n");
2534 /* protocol version[1] */
2535 } else if (packet[4] != 0xA) {
2537 "Only MySQL protocol version 10 is supported.\n");
2542 /* server version[string+NULL] */
2545 BIO_printf(bio_err, "Cannot confirm server version. ");
2547 } else if (packet[pos++] == '\0') {
2552 /* make sure we have at least 15 bytes left in the packet */
2553 if (pos + 15 > bytes) {
2555 "MySQL server handshake packet is broken.\n");
2559 pos += 12; /* skip over conn id[4] + SALT[8] */
2560 if (packet[pos++] != '\0') { /* verify filler */
2562 "MySQL packet is broken.\n");
2566 /* capability flags[2] */
2567 if (!((packet[pos] + (packet[pos + 1] << 8)) & ssl_flg)) {
2568 BIO_printf(bio_err, "MySQL server does not support SSL.\n");
2572 /* Sending SSL Handshake packet. */
2573 BIO_write(sbio, ssl_req, sizeof(ssl_req));
2574 (void)BIO_flush(sbio);
2577 case PROTO_POSTGRES:
2579 static const unsigned char ssl_request[] = {
2580 /* Length SSLRequest */
2581 0, 0, 0, 8, 4, 210, 22, 47
2585 /* Send SSLRequest packet */
2586 BIO_write(sbio, ssl_request, 8);
2587 (void)BIO_flush(sbio);
2589 /* Reply will be a single S if SSL is enabled */
2590 bytes = BIO_read(sbio, sbuf, BUFSIZZ);
2591 if (bytes != 1 || sbuf[0] != 'S')
2598 BIO *fbio = BIO_new(BIO_f_buffer());
2600 BIO_push(fbio, sbio);
2601 BIO_gets(fbio, mbuf, BUFSIZZ);
2602 /* STARTTLS command requires CAPABILITIES... */
2603 BIO_printf(fbio, "CAPABILITIES\r\n");
2604 (void)BIO_flush(fbio);
2605 BIO_gets(fbio, mbuf, BUFSIZZ);
2606 /* no point in trying to parse the CAPABILITIES response if there is none */
2607 if (strstr(mbuf, "101") != NULL) {
2608 /* wait for multi-line CAPABILITIES response */
2610 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2611 if (strstr(mbuf, "STARTTLS"))
2613 } while (mbuf_len > 1 && mbuf[0] != '.');
2615 (void)BIO_flush(fbio);
2620 "Didn't find STARTTLS in server response,"
2621 " trying anyway...\n");
2622 BIO_printf(sbio, "STARTTLS\r\n");
2623 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2625 BIO_printf(bio_err, "BIO_read failed\n");
2628 mbuf[mbuf_len] = '\0';
2629 if (strstr(mbuf, "382") == NULL) {
2630 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2638 BIO *fbio = BIO_new(BIO_f_buffer());
2640 BIO_push(fbio, sbio);
2641 /* wait for multi-line response to end from Sieve */
2643 mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ);
2645 * According to RFC 5804 § 1.7, capability
2646 * is case-insensitive, make it uppercase
2648 if (mbuf_len > 1 && mbuf[0] == '"') {
2649 make_uppercase(mbuf);
2650 if (strncmp(mbuf, "\"STARTTLS\"", 10) == 0)
2653 } while (mbuf_len > 1 && mbuf[0] == '"');
2654 (void)BIO_flush(fbio);
2659 "Didn't find STARTTLS in server response,"
2660 " trying anyway...\n");
2661 BIO_printf(sbio, "STARTTLS\r\n");
2662 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2664 BIO_printf(bio_err, "BIO_read failed\n");
2667 mbuf[mbuf_len] = '\0';
2669 BIO_printf(bio_err, "STARTTLS failed: %s", mbuf);
2673 * According to RFC 5804 § 2.2, response codes are case-
2674 * insensitive, make it uppercase but preserve the response.
2676 strncpy(sbuf, mbuf, 2);
2677 make_uppercase(sbuf);
2678 if (strncmp(sbuf, "OK", 2) != 0) {
2679 BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf);
2686 /* StartTLS Operation according to RFC 4511 */
2687 static char ldap_tls_genconf[] = "asn1=SEQUENCE:LDAPMessage\n"
2689 "messageID=INTEGER:1\n"
2690 "extendedReq=EXPLICIT:23A,IMPLICIT:0C,"
2691 "FORMAT:ASCII,OCT:1.3.6.1.4.1.1466.20037\n";
2693 char *genstr = NULL;
2695 ASN1_TYPE *atyp = NULL;
2696 BIO *ldapbio = BIO_new(BIO_s_mem());
2697 CONF *cnf = NCONF_new(NULL);
2703 BIO_puts(ldapbio, ldap_tls_genconf);
2704 if (NCONF_load_bio(cnf, ldapbio, &errline) <= 0) {
2708 BIO_printf(bio_err, "NCONF_load_bio failed\n");
2711 BIO_printf(bio_err, "Error on line %ld\n", errline);
2716 genstr = NCONF_get_string(cnf, "default", "asn1");
2717 if (genstr == NULL) {
2719 BIO_printf(bio_err, "NCONF_get_string failed\n");
2722 atyp = ASN1_generate_nconf(genstr, cnf);
2725 BIO_printf(bio_err, "ASN1_generate_nconf failed\n");
2730 /* Send SSLRequest packet */
2731 BIO_write(sbio, atyp->value.sequence->data,
2732 atyp->value.sequence->length);
2733 (void)BIO_flush(sbio);
2734 ASN1_TYPE_free(atyp);
2736 mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
2738 BIO_printf(bio_err, "BIO_read failed\n");
2741 result = ldap_ExtendedResponse_parse(mbuf, mbuf_len);
2743 BIO_printf(bio_err, "ldap_ExtendedResponse_parse failed\n");
2745 } else if (result > 0) {
2746 BIO_printf(bio_err, "STARTTLS failed, LDAP Result Code: %i\n",
2755 if (early_data_file != NULL
2756 && ((SSL_get0_session(con) != NULL
2757 && SSL_SESSION_get_max_early_data(SSL_get0_session(con)) > 0)
2759 && SSL_SESSION_get_max_early_data(psksess) > 0))) {
2760 BIO *edfile = BIO_new_file(early_data_file, "r");
2761 size_t readbytes, writtenbytes;
2764 if (edfile == NULL) {
2765 BIO_printf(bio_err, "Cannot open early data file\n");
2770 if (!BIO_read_ex(edfile, cbuf, BUFSIZZ, &readbytes))
2773 while (!SSL_write_early_data(con, cbuf, readbytes, &writtenbytes)) {
2774 switch (SSL_get_error(con, 0)) {
2775 case SSL_ERROR_WANT_WRITE:
2776 case SSL_ERROR_WANT_ASYNC:
2777 case SSL_ERROR_WANT_READ:
2778 /* Just keep trying - busy waiting */
2781 BIO_printf(bio_err, "Error writing early data\n");
2783 ERR_print_errors(bio_err);
2796 if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout))
2797 timeoutp = &timeout;
2801 if (!SSL_is_init_finished(con) && SSL_total_renegotiations(con) == 0
2802 && SSL_get_key_update_type(con) == SSL_KEY_UPDATE_NONE) {
2811 BIO_puts(bio_err, "CONNECTION ESTABLISHED\n");
2812 print_ssl_summary(con);
2815 print_stuff(bio_c_out, con, full_log);
2819 if (starttls_proto) {
2820 BIO_write(bio_err, mbuf, mbuf_len);
2821 /* We don't need to know any more */
2823 starttls_proto = PROTO_OFF;
2828 BIO_printf(bio_c_out,
2829 "drop connection and then reconnect\n");
2830 do_ssl_shutdown(con);
2831 SSL_set_connect_state(con);
2832 BIO_closesocket(SSL_get_fd(con));
2838 ssl_pending = read_ssl && SSL_has_pending(con);
2841 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
2844 * Note that select() returns when read _would not block_,
2845 * and EOF satisfies that. To avoid a CPU-hogging loop,
2846 * set the flag so we exit.
2848 if (read_tty && !at_eof)
2849 openssl_fdset(fileno_stdin(), &readfds);
2850 #if !defined(OPENSSL_SYS_VMS)
2852 openssl_fdset(fileno_stdout(), &writefds);
2856 openssl_fdset(SSL_get_fd(con), &readfds);
2858 openssl_fdset(SSL_get_fd(con), &writefds);
2860 if (!tty_on || !write_tty) {
2862 openssl_fdset(SSL_get_fd(con), &readfds);
2864 openssl_fdset(SSL_get_fd(con), &writefds);
2869 * Note: under VMS with SOCKETSHR the second parameter is
2870 * currently of type (int *) whereas under other systems it is
2871 * (void *) if you don't have a cast it will choke the compiler:
2872 * if you do have a cast then you can either go for (int *) or
2875 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
2877 * Under Windows/DOS we make the assumption that we can always
2878 * write to the tty: therefore if we need to write to the tty we
2879 * just fall through. Otherwise we timeout the select every
2880 * second and see if there are any keypresses. Note: this is a
2881 * hack, in a proper Windows application we wouldn't do this.
2888 i = select(width, (void *)&readfds, (void *)&writefds,
2890 if (!i && (!has_stdin_waiting() || !read_tty))
2893 i = select(width, (void *)&readfds, (void *)&writefds,
2897 i = select(width, (void *)&readfds, (void *)&writefds,
2901 BIO_printf(bio_err, "bad select %d\n",
2902 get_last_socket_error());
2907 if (SSL_is_dtls(con) && DTLSv1_handle_timeout(con) > 0)
2908 BIO_printf(bio_err, "TIMEOUT occurred\n");
2910 if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) {
2911 k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len);
2912 switch (SSL_get_error(con, k)) {
2913 case SSL_ERROR_NONE:
2918 /* we have done a write(con,NULL,0); */
2919 if (cbuf_len <= 0) {
2922 } else { /* if (cbuf_len > 0) */
2928 case SSL_ERROR_WANT_WRITE:
2929 BIO_printf(bio_c_out, "write W BLOCK\n");
2933 case SSL_ERROR_WANT_ASYNC:
2934 BIO_printf(bio_c_out, "write A BLOCK\n");
2935 wait_for_async(con);
2939 case SSL_ERROR_WANT_READ:
2940 BIO_printf(bio_c_out, "write R BLOCK\n");
2945 case SSL_ERROR_WANT_X509_LOOKUP:
2946 BIO_printf(bio_c_out, "write X BLOCK\n");
2948 case SSL_ERROR_ZERO_RETURN:
2949 if (cbuf_len != 0) {
2950 BIO_printf(bio_c_out, "shutdown\n");
2959 case SSL_ERROR_SYSCALL:
2960 if ((k != 0) || (cbuf_len != 0)) {
2961 BIO_printf(bio_err, "write:errno=%d\n",
2962 get_last_socket_error());
2969 case SSL_ERROR_WANT_ASYNC_JOB:
2970 /* This shouldn't ever happen in s_client - treat as an error */
2972 ERR_print_errors(bio_err);
2976 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS)
2977 /* Assume Windows/DOS/BeOS can always write */
2978 else if (!ssl_pending && write_tty)
2980 else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds))
2983 #ifdef CHARSET_EBCDIC
2984 ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len);
2986 i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len);
2989 BIO_printf(bio_c_out, "DONE\n");
2996 if (sbuf_len <= 0) {
3000 } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) {
3005 SSL_renegotiate(con);
3010 k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ );
3012 switch (SSL_get_error(con, k)) {
3013 case SSL_ERROR_NONE:
3022 case SSL_ERROR_WANT_ASYNC:
3023 BIO_printf(bio_c_out, "read A BLOCK\n");
3024 wait_for_async(con);
3027 if ((read_tty == 0) && (write_ssl == 0))
3030 case SSL_ERROR_WANT_WRITE:
3031 BIO_printf(bio_c_out, "read W BLOCK\n");
3035 case SSL_ERROR_WANT_READ:
3036 BIO_printf(bio_c_out, "read R BLOCK\n");
3039 if ((read_tty == 0) && (write_ssl == 0))
3042 case SSL_ERROR_WANT_X509_LOOKUP:
3043 BIO_printf(bio_c_out, "read X BLOCK\n");
3045 case SSL_ERROR_SYSCALL:
3046 ret = get_last_socket_error();
3048 BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n");
3050 BIO_printf(bio_err, "read:errno=%d\n", ret);
3052 case SSL_ERROR_ZERO_RETURN:
3053 BIO_printf(bio_c_out, "closed\n");
3056 case SSL_ERROR_WANT_ASYNC_JOB:
3057 /* This shouldn't ever happen in s_client. Treat as an error */
3059 ERR_print_errors(bio_err);
3063 /* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */
3064 #if defined(OPENSSL_SYS_MSDOS)
3065 else if (has_stdin_waiting())
3067 else if (FD_ISSET(fileno_stdin(), &readfds))
3073 i = raw_read_stdin(cbuf, BUFSIZZ / 2);
3075 /* both loops are skipped when i <= 0 */
3076 for (j = 0; j < i; j++)
3077 if (cbuf[j] == '\n')
3079 for (j = i - 1; j >= 0; j--) {
3080 cbuf[j + lf_num] = cbuf[j];
3081 if (cbuf[j] == '\n') {
3084 cbuf[j + lf_num] = '\r';
3087 assert(lf_num == 0);
3089 i = raw_read_stdin(cbuf, BUFSIZZ);
3090 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS)
3095 if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) {
3096 BIO_printf(bio_err, "DONE\n");
3101 if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) {
3102 BIO_printf(bio_err, "RENEGOTIATING\n");
3103 SSL_renegotiate(con);
3105 } else if (!c_ign_eof && (cbuf[0] == 'K' || cbuf[0] == 'k' )
3107 BIO_printf(bio_err, "KEYUPDATE\n");
3109 cbuf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED
3110 : SSL_KEY_UPDATE_NOT_REQUESTED);
3113 #ifndef OPENSSL_NO_HEARTBEATS
3114 else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) {
3115 BIO_printf(bio_err, "HEARTBEATING\n");
3123 #ifdef CHARSET_EBCDIC
3124 ebcdic2ascii(cbuf, cbuf, i);
3136 print_stuff(bio_c_out, con, full_log);
3137 do_ssl_shutdown(con);
3140 * If we ended with an alert being sent, but still with data in the
3141 * network buffer to be read, then calling BIO_closesocket() will
3142 * result in a TCP-RST being sent. On some platforms (notably
3143 * Windows) then this will result in the peer immediately abandoning
3144 * the connection including any buffered alert data before it has
3145 * had a chance to be read. Shutting down the sending side first,
3146 * and then closing the socket sends TCP-FIN first followed by
3147 * TCP-RST. This seems to allow the peer to read the alert data.
3149 shutdown(SSL_get_fd(con), 1); /* SHUT_WR */
3151 * We just said we have nothing else to say, but it doesn't mean that
3152 * the other side has nothing. It's even recommended to consume incoming
3153 * data. [In testing context this ensures that alerts are passed on...]
3156 timeout.tv_usec = 500000; /* some extreme round-trip */
3159 openssl_fdset(s, &readfds);
3160 } while (select(s + 1, &readfds, NULL, NULL, &timeout) > 0
3161 && BIO_read(sbio, sbuf, BUFSIZZ) > 0);
3163 BIO_closesocket(SSL_get_fd(con));
3167 print_stuff(bio_c_out, con, 1);
3170 SSL_SESSION_free(psksess);
3171 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3172 OPENSSL_free(next_proto.data);
3175 set_keylog_file(NULL, NULL);
3177 sk_X509_CRL_pop_free(crls, X509_CRL_free);
3179 sk_X509_pop_free(chain, X509_free);
3181 #ifndef OPENSSL_NO_SRP
3182 OPENSSL_free(srp_arg.srppassin);
3184 OPENSSL_free(connectstr);
3185 OPENSSL_free(bindstr);
3188 X509_VERIFY_PARAM_free(vpm);
3189 ssl_excert_free(exc);
3190 sk_OPENSSL_STRING_free(ssl_args);
3191 sk_OPENSSL_STRING_free(dane_tlsa_rrset);
3192 SSL_CONF_CTX_free(cctx);
3193 OPENSSL_clear_free(cbuf, BUFSIZZ);
3194 OPENSSL_clear_free(sbuf, BUFSIZZ);
3195 OPENSSL_clear_free(mbuf, BUFSIZZ);
3196 if (proxypass != NULL)
3197 OPENSSL_clear_free(proxypass, strlen(proxypass));
3199 BIO_free(bio_c_out);
3201 BIO_free(bio_c_msg);
3206 static void print_stuff(BIO *bio, SSL *s, int full)
3210 const SSL_CIPHER *c;
3211 int i, istls13 = (SSL_version(s) == TLS1_3_VERSION);
3213 #ifndef OPENSSL_NO_COMP
3214 const COMP_METHOD *comp, *expansion;
3216 unsigned char *exportedkeymat;
3217 #ifndef OPENSSL_NO_CT
3218 const SSL_CTX *ctx = SSL_get_SSL_CTX(s);
3222 int got_a_chain = 0;
3224 sk = SSL_get_peer_cert_chain(s);
3228 BIO_printf(bio, "---\nCertificate chain\n");
3229 for (i = 0; i < sk_X509_num(sk); i++) {
3230 BIO_printf(bio, "%2d s:", i);
3231 X509_NAME_print_ex(bio, X509_get_subject_name(sk_X509_value(sk, i)), 0, get_nameopt());
3232 BIO_puts(bio, "\n");
3233 BIO_printf(bio, " i:");
3234 X509_NAME_print_ex(bio, X509_get_issuer_name(sk_X509_value(sk, i)), 0, get_nameopt());
3235 BIO_puts(bio, "\n");
3237 PEM_write_bio_X509(bio, sk_X509_value(sk, i));
3241 BIO_printf(bio, "---\n");
3242 peer = SSL_get_peer_certificate(s);
3244 BIO_printf(bio, "Server certificate\n");
3246 /* Redundant if we showed the whole chain */
3247 if (!(c_showcerts && got_a_chain))
3248 PEM_write_bio_X509(bio, peer);
3249 dump_cert_text(bio, peer);
3251 BIO_printf(bio, "no peer certificate available\n");
3253 print_ca_names(bio, s);
3255 ssl_print_sigalgs(bio, s);
3256 ssl_print_tmp_key(bio, s);
3258 #ifndef OPENSSL_NO_CT
3260 * When the SSL session is anonymous, or resumed via an abbreviated
3261 * handshake, no SCTs are provided as part of the handshake. While in
3262 * a resumed session SCTs may be present in the session's certificate,
3263 * no callbacks are invoked to revalidate these, and in any case that
3264 * set of SCTs may be incomplete. Thus it makes little sense to
3265 * attempt to display SCTs from a resumed session's certificate, and of
3266 * course none are associated with an anonymous peer.
3268 if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) {
3269 const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s);
3270 int sct_count = scts != NULL ? sk_SCT_num(scts) : 0;
3272 BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count);
3273 if (sct_count > 0) {
3274 const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx);
3276 BIO_printf(bio, "---\n");
3277 for (i = 0; i < sct_count; ++i) {
3278 SCT *sct = sk_SCT_value(scts, i);
3280 BIO_printf(bio, "SCT validation status: %s\n",
3281 SCT_validation_status_string(sct));
3282 SCT_print(sct, bio, 0, log_store);
3283 if (i < sct_count - 1)
3284 BIO_printf(bio, "\n---\n");
3286 BIO_printf(bio, "\n");
3292 "---\nSSL handshake has read %ju bytes "
3293 "and written %ju bytes\n",
3294 BIO_number_read(SSL_get_rbio(s)),
3295 BIO_number_written(SSL_get_wbio(s)));
3297 print_verify_detail(s, bio);
3298 BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, "));
3299 c = SSL_get_current_cipher(s);
3300 BIO_printf(bio, "%s, Cipher is %s\n",
3301 SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
3305 pktmp = X509_get0_pubkey(peer);
3306 BIO_printf(bio, "Server public key is %d bit\n",
3307 EVP_PKEY_bits(pktmp));
3309 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
3310 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
3311 #ifndef OPENSSL_NO_COMP
3312 comp = SSL_get_current_compression(s);
3313 expansion = SSL_get_current_expansion(s);
3314 BIO_printf(bio, "Compression: %s\n",
3315 comp ? SSL_COMP_get_name(comp) : "NONE");
3316 BIO_printf(bio, "Expansion: %s\n",
3317 expansion ? SSL_COMP_get_name(expansion) : "NONE");
3319 #ifndef OPENSSL_NO_KTLS
3320 if (BIO_get_ktls_send(SSL_get_wbio(s)))
3321 BIO_printf(bio_err, "Using Kernel TLS for sending\n");
3326 /* Print out local port of connection: useful for debugging */
3328 union BIO_sock_info_u info;
3330 sock = SSL_get_fd(s);
3331 if ((info.addr = BIO_ADDR_new()) != NULL
3332 && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) {
3333 BIO_printf(bio_c_out, "LOCAL PORT is %u\n",
3334 ntohs(BIO_ADDR_rawport(info.addr)));
3336 BIO_ADDR_free(info.addr);
3340 #if !defined(OPENSSL_NO_NEXTPROTONEG)
3341 if (next_proto.status != -1) {
3342 const unsigned char *proto;
3343 unsigned int proto_len;
3344 SSL_get0_next_proto_negotiated(s, &proto, &proto_len);
3345 BIO_printf(bio, "Next protocol: (%d) ", next_proto.status);
3346 BIO_write(bio, proto, proto_len);
3347 BIO_write(bio, "\n", 1);
3351 const unsigned char *proto;
3352 unsigned int proto_len;
3353 SSL_get0_alpn_selected(s, &proto, &proto_len);
3354 if (proto_len > 0) {
3355 BIO_printf(bio, "ALPN protocol: ");
3356 BIO_write(bio, proto, proto_len);
3357 BIO_write(bio, "\n", 1);
3359 BIO_printf(bio, "No ALPN negotiated\n");
3362 #ifndef OPENSSL_NO_SRTP
3364 SRTP_PROTECTION_PROFILE *srtp_profile =
3365 SSL_get_selected_srtp_profile(s);
3368 BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n",
3369 srtp_profile->name);
3374 switch (SSL_get_early_data_status(s)) {
3375 case SSL_EARLY_DATA_NOT_SENT:
3376 BIO_printf(bio, "Early data was not sent\n");
3379 case SSL_EARLY_DATA_REJECTED:
3380 BIO_printf(bio, "Early data was rejected\n");
3383 case SSL_EARLY_DATA_ACCEPTED:
3384 BIO_printf(bio, "Early data was accepted\n");
3390 * We also print the verify results when we dump session information,
3391 * but in TLSv1.3 we may not get that right away (or at all) depending
3392 * on when we get a NewSessionTicket. Therefore we print it now as well.
3394 verify_result = SSL_get_verify_result(s);
3395 BIO_printf(bio, "Verify return code: %ld (%s)\n", verify_result,
3396 X509_verify_cert_error_string(verify_result));
3398 /* In TLSv1.3 we do this on arrival of a NewSessionTicket */
3399 SSL_SESSION_print(bio, SSL_get_session(s));
3402 if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) {
3403 BIO_printf(bio, "Keying material exporter:\n");
3404 BIO_printf(bio, " Label: '%s'\n", keymatexportlabel);
3405 BIO_printf(bio, " Length: %i bytes\n", keymatexportlen);
3406 exportedkeymat = app_malloc(keymatexportlen, "export key");
3407 if (!SSL_export_keying_material(s, exportedkeymat,
3410 strlen(keymatexportlabel),
3412 BIO_printf(bio, " Error\n");
3414 BIO_printf(bio, " Keying material: ");
3415 for (i = 0; i < keymatexportlen; i++)
3416 BIO_printf(bio, "%02X", exportedkeymat[i]);
3417 BIO_printf(bio, "\n");
3419 OPENSSL_free(exportedkeymat);
3421 BIO_printf(bio, "---\n");
3423 /* flush, or debugging output gets mixed with http response */
3424 (void)BIO_flush(bio);
3427 # ifndef OPENSSL_NO_OCSP
3428 static int ocsp_resp_cb(SSL *s, void *arg)
3430 const unsigned char *p;
3433 len = SSL_get_tlsext_status_ocsp_resp(s, &p);
3434 BIO_puts(arg, "OCSP response: ");
3436 BIO_puts(arg, "no response sent\n");
3439 rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
3441 BIO_puts(arg, "response parse error\n");
3442 BIO_dump_indent(arg, (char *)p, len, 4);
3445 BIO_puts(arg, "\n======================================\n");
3446 OCSP_RESPONSE_print(arg, rsp, 0);
3447 BIO_puts(arg, "======================================\n");
3448 OCSP_RESPONSE_free(rsp);
3453 static int ldap_ExtendedResponse_parse(const char *buf, long rem)
3455 const unsigned char *cur, *end;
3457 int tag, xclass, inf, ret = -1;
3459 cur = (const unsigned char *)buf;
3465 * LDAPMessage ::= SEQUENCE {
3466 * messageID MessageID,
3467 * protocolOp CHOICE {
3469 * extendedResp ExtendedResponse,
3471 * controls [0] Controls OPTIONAL }
3473 * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
3474 * COMPONENTS OF LDAPResult,
3475 * responseName [10] LDAPOID OPTIONAL,
3476 * responseValue [11] OCTET STRING OPTIONAL }
3478 * LDAPResult ::= SEQUENCE {
3479 * resultCode ENUMERATED {
3485 * diagnosticMessage LDAPString,
3486 * referral [3] Referral OPTIONAL }
3490 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3491 if (inf != V_ASN1_CONSTRUCTED || tag != V_ASN1_SEQUENCE ||
3492 (rem = end - cur, len > rem)) {
3493 BIO_printf(bio_err, "Unexpected LDAP response\n");
3497 rem = len; /* ensure that we don't overstep the SEQUENCE */
3499 /* pull MessageID */
3500 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3501 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_INTEGER ||
3502 (rem = end - cur, len > rem)) {
3503 BIO_printf(bio_err, "No MessageID\n");
3507 cur += len; /* shall we check for MessageId match or just skip? */
3509 /* pull [APPLICATION 24] */
3511 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3512 if (inf != V_ASN1_CONSTRUCTED || xclass != V_ASN1_APPLICATION ||
3514 BIO_printf(bio_err, "Not ExtendedResponse\n");
3518 /* pull resultCode */
3520 inf = ASN1_get_object(&cur, &len, &tag, &xclass, rem);
3521 if (inf != V_ASN1_UNIVERSAL || tag != V_ASN1_ENUMERATED || len == 0 ||
3522 (rem = end - cur, len > rem)) {
3523 BIO_printf(bio_err, "Not LDAPResult\n");
3527 /* len should always be one, but just in case... */
3528 for (ret = 0, inf = 0; inf < len; inf++) {
3532 /* There is more data, but we don't care... */
3538 * BASE64 encoder: used only for encoding basic proxy authentication credentials
3540 static char *base64encode (const void *buf, size_t len)
3546 /* Calculate size of encoded data */
3551 out = app_malloc(outl + 1, "base64 encode buffer");
3553 i = EVP_EncodeBlock((unsigned char *)out, buf, len);
3554 assert(i <= (int)outl);
3561 * Host dNS Name verifier: used for checking that the hostname is in dNS format
3562 * before setting it as SNI
3564 static int is_dNS_name(const char *host)
3566 const size_t MAX_LABEL_LENGTH = 63;
3569 size_t length = strlen(host);
3570 size_t label_length = 0;
3571 int all_numeric = 1;
3574 * Deviation from strict DNS name syntax, also check names with '_'
3575 * Check DNS name syntax, any '-' or '.' must be internal,
3576 * and on either side of each '.' we can't have a '-' or '.'.
3578 * If the name has just one label, we don't consider it a DNS name.
3580 for (i = 0; i < length && label_length < MAX_LABEL_LENGTH; ++i) {
3583 if ((c >= 'a' && c <= 'z')
3584 || (c >= 'A' && c <= 'Z')
3591 if (c >= '0' && c <= '9') {
3596 /* Dot and hyphen cannot be first or last. */
3597 if (i > 0 && i < length - 1) {
3603 * Next to a dot the preceding and following characters must not be
3604 * another dot or a hyphen. Otherwise, record that the name is
3605 * plausible, since it has two or more labels.
3608 && host[i + 1] != '.'
3609 && host[i - 1] != '-'
3610 && host[i + 1] != '-') {
3620 /* dNS name must not be all numeric and labels must be shorter than 64 characters. */
3621 isdnsname &= !all_numeric && !(label_length == MAX_LABEL_LENGTH);
3625 #endif /* OPENSSL_NO_SOCK */